* Linux syscalls
*
* Copyright (c) 2003 Fabrice Bellard
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#define _ATFILE_SOURCE
#include "qemu/osdep.h"
#include "qemu/cutils.h"
#include "qemu/path.h"
#include "qemu/memfd.h"
#include "qemu/queue.h"
#include "qemu/plugin.h"
#include "tcg/startup.h"
#include "target_mman.h"
#include <elf.h>
#include <endian.h>
#include <grp.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/wait.h>
#include <sys/mount.h>
#include <sys/file.h>
#include <sys/fsuid.h>
#include <sys/personality.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/swap.h>
#include <linux/capability.h>
#include <sched.h>
#include <sys/timex.h>
#include <sys/socket.h>
#include <linux/sockios.h>
#include <sys/un.h>
#include <sys/uio.h>
#include <poll.h>
#include <sys/times.h>
#include <sys/shm.h>
#include <sys/sem.h>
#include <sys/statfs.h>
#include <utime.h>
#include <sys/sysinfo.h>
#include <sys/signalfd.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>
#include <linux/wireless.h>
#include <linux/icmp.h>
#include <linux/icmpv6.h>
#include <linux/if_tun.h>
#include <linux/in6.h>
#include <linux/errqueue.h>
#include <linux/random.h>
#ifdef CONFIG_TIMERFD
#include <sys/timerfd.h>
#endif
#ifdef CONFIG_EVENTFD
#include <sys/eventfd.h>
#endif
#ifdef CONFIG_EPOLL
#include <sys/epoll.h>
#endif
#ifdef CONFIG_ATTR
#include "qemu/xattr.h"
#endif
#ifdef CONFIG_SENDFILE
#include <sys/sendfile.h>
#endif
#ifdef HAVE_SYS_KCOV_H
#include <sys/kcov.h>
#endif
#define termios host_termios
#define winsize host_winsize
#define termio host_termio
#define sgttyb host_sgttyb
#define tchars host_tchars
#define ltchars host_ltchars
#include <linux/termios.h>
#include <linux/unistd.h>
#include <linux/cdrom.h>
#include <linux/hdreg.h>
#include <linux/soundcard.h>
#include <linux/kd.h>
#include <linux/mtio.h>
#include <linux/fs.h>
#include <linux/fd.h>
#if defined(CONFIG_FIEMAP)
#include <linux/fiemap.h>
#endif
#include <linux/fb.h>
#if defined(CONFIG_USBFS)
#include <linux/usbdevice_fs.h>
#include <linux/usb/ch9.h>
#endif
#include <linux/vt.h>
#include <linux/dm-ioctl.h>
#include <linux/reboot.h>
#include <linux/route.h>
#include <linux/filter.h>
#include <linux/blkpg.h>
#include <netpacket/packet.h>
#include <linux/netlink.h>
#include <linux/if_alg.h>
#include <linux/rtc.h>
#include <sound/asound.h>
#ifdef HAVE_BTRFS_H
#include <linux/btrfs.h>
#endif
#ifdef HAVE_DRM_H
#include <libdrm/drm.h>
#include <libdrm/i915_drm.h>
#endif
#include "linux_loop.h"
#include "uname.h"
#include "qemu.h"
#include "user-internals.h"
#include "strace.h"
#include "signal-common.h"
#include "loader.h"
#include "user-mmap.h"
#include "user/safe-syscall.h"
#include "qemu/guest-random.h"
#include "qemu/selfmap.h"
#include "user/syscall-trace.h"
#include "special-errno.h"
#include "qapi/error.h"
#include "fd-trans.h"
#include "cpu_loop-common.h"
#ifndef CLONE_IO
#define CLONE_IO 0x80000000
#endif
* badly confuse libc (breaking mutexes, for example). So we must
* divide clone flags into:
* * flag combinations that look like pthread_create()
* * flag combinations that look like fork()
* * flags we can implement within QEMU itself
* * flags we can't support and will return an error for
*/
* fork, none must be present.
*/
#define CLONE_THREAD_FLAGS \
(CLONE_VM | CLONE_FS | CLONE_FILES | \
CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM)
* CLONE_DETACHED is now ignored by the kernel;
* CLONE_IO is just an optimisation hint to the I/O scheduler
*/
#define CLONE_IGNORED_FLAGS \
(CLONE_DETACHED | CLONE_IO)
#ifndef CLONE_PIDFD
# define CLONE_PIDFD 0x00001000
#endif
#define CLONE_OPTIONAL_FORK_FLAGS \
(CLONE_SETTLS | CLONE_PARENT_SETTID | CLONE_PIDFD | \
CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID)
#define CLONE_OPTIONAL_THREAD_FLAGS \
(CLONE_SETTLS | CLONE_PARENT_SETTID | \
CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | CLONE_PARENT)
#define CLONE_INVALID_FORK_FLAGS \
(~(CSIGNAL | CLONE_OPTIONAL_FORK_FLAGS | CLONE_IGNORED_FLAGS))
#define CLONE_INVALID_THREAD_FLAGS \
(~(CSIGNAL | CLONE_THREAD_FLAGS | CLONE_OPTIONAL_THREAD_FLAGS | \
CLONE_IGNORED_FLAGS))
* have almost all been allocated. We cannot support any of
* CLONE_NEWNS, CLONE_NEWCGROUP, CLONE_NEWUTS, CLONE_NEWIPC,
* CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_PTRACE, CLONE_UNTRACED.
* The checks against the invalid thread masks above will catch these.
* (The one remaining unallocated bit is 0x1000 which used to be CLONE_PID.)
*/
* once. This exercises the codepaths for restart.
*/
#define VFAT_IOCTL_READDIR_BOTH \
_IOC(_IOC_READ, 'r', 1, (sizeof(struct linux_dirent) + 256) * 2)
#define VFAT_IOCTL_READDIR_SHORT \
_IOC(_IOC_READ, 'r', 2, (sizeof(struct linux_dirent) + 256) * 2)
#undef _syscall0
#undef _syscall1
#undef _syscall2
#undef _syscall3
#undef _syscall4
#undef _syscall5
#undef _syscall6
#define _syscall0(type,name) \
static type name (void) \
{ \
return syscall(__NR_##name); \
}
#define _syscall1(type,name,type1,arg1) \
static type name (type1 arg1) \
{ \
return syscall(__NR_##name, arg1); \
}
#define _syscall2(type,name,type1,arg1,type2,arg2) \
static type name (type1 arg1,type2 arg2) \
{ \
return syscall(__NR_##name, arg1, arg2); \
}
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
static type name (type1 arg1,type2 arg2,type3 arg3) \
{ \
return syscall(__NR_##name, arg1, arg2, arg3); \
}
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
{ \
return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
}
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
type5,arg5) \
static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
{ \
return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
}
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
type5,arg5,type6,arg6) \
static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
type6 arg6) \
{ \
return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
}
#define __NR_sys_uname __NR_uname
#define __NR_sys_getcwd1 __NR_getcwd
#define __NR_sys_getdents __NR_getdents
#define __NR_sys_getdents64 __NR_getdents64
#define __NR_sys_getpriority __NR_getpriority
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
#define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
#define __NR_sys_syslog __NR_syslog
#if defined(__NR_futex)
# define __NR_sys_futex __NR_futex
#endif
#if defined(__NR_futex_time64)
# define __NR_sys_futex_time64 __NR_futex_time64
#endif
#define __NR_sys_statx __NR_statx
#if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__)
#define __NR__llseek __NR_lseek
#endif
#if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
#define TARGET_NR__llseek TARGET_NR_llseek
#endif
#ifndef TARGET_O_NONBLOCK_MASK
#define TARGET_O_NONBLOCK_MASK TARGET_O_NONBLOCK
#endif
#define __NR_sys_gettid __NR_gettid
_syscall0(int, sys_gettid)
* getdents using getdents64, because otherwise the host
* might hand us back more dirent records than we can fit
* into the guest buffer after structure format conversion.
* Otherwise we emulate getdents with getdents if the host has it.
*/
#if defined(__NR_getdents) && HOST_LONG_BITS >= TARGET_ABI_BITS
#define EMULATE_GETDENTS_WITH_GETDENTS
#endif
#if defined(TARGET_NR_getdents) && defined(EMULATE_GETDENTS_WITH_GETDENTS)
_syscall3(int, sys_getdents, unsigned int, fd, struct linux_dirent *, dirp, unsigned int, count);
#endif
#if (defined(TARGET_NR_getdents) && \
!defined(EMULATE_GETDENTS_WITH_GETDENTS)) || \
(defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
_syscall3(int, sys_getdents64, unsigned int, fd, struct linux_dirent64 *, dirp, unsigned int, count);
#endif
#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
_syscall5(int, _llseek, unsigned int, fd, unsigned long, hi, unsigned long, lo,
loff_t *, res, unsigned int, wh);
#endif
_syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo)
_syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig,
siginfo_t *, uinfo)
_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
#ifdef __NR_exit_group
_syscall1(int,exit_group,int,error_code)
#endif
#if defined(__NR_close_range) && defined(TARGET_NR_close_range)
#define __NR_sys_close_range __NR_close_range
_syscall3(int,sys_close_range,int,first,int,last,int,flags)
#ifndef CLOSE_RANGE_CLOEXEC
#define CLOSE_RANGE_CLOEXEC (1U << 2)
#endif
#endif
#if defined(__NR_futex)
_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
const struct timespec *,timeout,int *,uaddr2,int,val3)
#endif
#if defined(__NR_futex_time64)
_syscall6(int,sys_futex_time64,int *,uaddr,int,op,int,val,
const struct timespec *,timeout,int *,uaddr2,int,val3)
#endif
#if defined(__NR_pidfd_open) && defined(TARGET_NR_pidfd_open)
_syscall2(int, pidfd_open, pid_t, pid, unsigned int, flags);
#endif
#if defined(__NR_pidfd_send_signal) && defined(TARGET_NR_pidfd_send_signal)
_syscall4(int, pidfd_send_signal, int, pidfd, int, sig, siginfo_t *, info,
unsigned int, flags);
#endif
#if defined(__NR_pidfd_getfd) && defined(TARGET_NR_pidfd_getfd)
_syscall3(int, pidfd_getfd, int, pidfd, int, targetfd, unsigned int, flags);
#endif
#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
unsigned long *, user_mask_ptr);
#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
unsigned long *, user_mask_ptr);
struct sched_attr {
uint32_t size;
uint32_t sched_policy;
uint64_t sched_flags;
int32_t sched_nice;
uint32_t sched_priority;
uint64_t sched_runtime;
uint64_t sched_deadline;
uint64_t sched_period;
uint32_t sched_util_min;
uint32_t sched_util_max;
};
#define __NR_sys_sched_getattr __NR_sched_getattr
_syscall4(int, sys_sched_getattr, pid_t, pid, struct sched_attr *, attr,
unsigned int, size, unsigned int, flags);
#define __NR_sys_sched_setattr __NR_sched_setattr
_syscall3(int, sys_sched_setattr, pid_t, pid, struct sched_attr *, attr,
unsigned int, flags);
#define __NR_sys_sched_getscheduler __NR_sched_getscheduler
_syscall1(int, sys_sched_getscheduler, pid_t, pid);
#define __NR_sys_sched_setscheduler __NR_sched_setscheduler
_syscall3(int, sys_sched_setscheduler, pid_t, pid, int, policy,
const struct sched_param *, param);
#define __NR_sys_sched_getparam __NR_sched_getparam
_syscall2(int, sys_sched_getparam, pid_t, pid,
struct sched_param *, param);
#define __NR_sys_sched_setparam __NR_sched_setparam
_syscall2(int, sys_sched_setparam, pid_t, pid,
const struct sched_param *, param);
#define __NR_sys_getcpu __NR_getcpu
_syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache);
_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
void *, arg);
_syscall2(int, capget, struct __user_cap_header_struct *, header,
struct __user_cap_data_struct *, data);
_syscall2(int, capset, struct __user_cap_header_struct *, header,
struct __user_cap_data_struct *, data);
#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
_syscall2(int, ioprio_get, int, which, int, who)
#endif
#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
#endif
#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
#endif
#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
_syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type,
unsigned long, idx1, unsigned long, idx2)
#endif
* It is assumed that struct statx is architecture independent.
*/
#if defined(TARGET_NR_statx) && defined(__NR_statx)
_syscall5(int, sys_statx, int, dirfd, const char *, pathname, int, flags,
unsigned int, mask, struct target_statx *, statxbuf)
#endif
#if defined(TARGET_NR_membarrier) && defined(__NR_membarrier)
_syscall2(int, membarrier, int, cmd, int, flags)
#endif
static const bitmask_transtbl fcntl_flags_tbl[] = {
{ TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
{ TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
{ TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
{ TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
{ TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
{ TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
{ TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
{ TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
{ TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
{ TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
{ TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
{ TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
{ TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
#if defined(O_DIRECT)
{ TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
#endif
#if defined(O_NOATIME)
{ TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
#endif
#if defined(O_CLOEXEC)
{ TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
#endif
#if defined(O_PATH)
{ TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
#endif
#if defined(O_TMPFILE)
{ TARGET_O_TMPFILE, TARGET_O_TMPFILE, O_TMPFILE, O_TMPFILE },
#endif
#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
{ TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
#endif
};
_syscall2(int, sys_getcwd1, char *, buf, size_t, size)
#if defined(TARGET_NR_utimensat) || defined(TARGET_NR_utimensat_time64)
#if defined(__NR_utimensat)
#define __NR_sys_utimensat __NR_utimensat
_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
const struct timespec *,tsp,int,flags)
#else
static int sys_utimensat(int dirfd, const char *pathname,
const struct timespec times[2], int flags)
{
errno = ENOSYS;
return -1;
}
#endif
#endif
#ifdef TARGET_NR_renameat2
#if defined(__NR_renameat2)
#define __NR_sys_renameat2 __NR_renameat2
_syscall5(int, sys_renameat2, int, oldfd, const char *, old, int, newfd,
const char *, new, unsigned int, flags)
#else
static int sys_renameat2(int oldfd, const char *old,
int newfd, const char *new, int flags)
{
if (flags == 0) {
return renameat(oldfd, old, newfd, new);
}
errno = ENOSYS;
return -1;
}
#endif
#endif
#ifdef CONFIG_INOTIFY
#include <sys/inotify.h>
#else
#undef TARGET_NR_inotify_init
#undef TARGET_NR_inotify_init1
#undef TARGET_NR_inotify_add_watch
#undef TARGET_NR_inotify_rm_watch
#endif
#if defined(TARGET_NR_prlimit64)
#ifndef __NR_prlimit64
# define __NR_prlimit64 -1
#endif
#define __NR_sys_prlimit64 __NR_prlimit64
struct host_rlimit64 {
uint64_t rlim_cur;
uint64_t rlim_max;
};
_syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
const struct host_rlimit64 *, new_limit,
struct host_rlimit64 *, old_limit)
#endif
#if defined(TARGET_NR_timer_create)
#define GUEST_TIMER_MAX 32
static timer_t g_posix_timers[GUEST_TIMER_MAX];
static int g_posix_timer_allocated[GUEST_TIMER_MAX];
static inline int next_free_host_timer(void)
{
int k;
for (k = 0; k < ARRAY_SIZE(g_posix_timer_allocated); k++) {
if (qatomic_xchg(g_posix_timer_allocated + k, 1) == 0) {
return k;
}
}
return -1;
}
static inline void free_host_timer_slot(int id)
{
qatomic_store_release(g_posix_timer_allocated + id, 0);
}
#endif
static inline int host_to_target_errno(int host_errno)
{
switch (host_errno) {
#define E(X) case X: return TARGET_##X;
#include "errnos.c.inc"
#undef E
default:
return host_errno;
}
}
static inline int target_to_host_errno(int target_errno)
{
switch (target_errno) {
#define E(X) case TARGET_##X: return X;
#include "errnos.c.inc"
#undef E
default:
return target_errno;
}
}
abi_long get_errno(abi_long ret)
{
if (ret == -1)
return -host_to_target_errno(errno);
else
return ret;
}
const char *target_strerror(int err)
{
if (err == QEMU_ERESTARTSYS) {
return "To be restarted";
}
if (err == QEMU_ESIGRETURN) {
return "Successful exit from sigreturn";
}
return strerror(target_to_host_errno(err));
}
static int check_zeroed_user(abi_long addr, size_t ksize, size_t usize)
{
int i;
uint8_t b;
if (usize <= ksize) {
return 1;
}
for (i = ksize; i < usize; i++) {
if (get_user_u8(b, addr + i)) {
return -TARGET_EFAULT;
}
if (b != 0) {
return 0;
}
}
return 1;
}
#define safe_syscall0(type, name) \
static type safe_##name(void) \
{ \
return safe_syscall(__NR_##name); \
}
#define safe_syscall1(type, name, type1, arg1) \
static type safe_##name(type1 arg1) \
{ \
return safe_syscall(__NR_##name, arg1); \
}
#define safe_syscall2(type, name, type1, arg1, type2, arg2) \
static type safe_##name(type1 arg1, type2 arg2) \
{ \
return safe_syscall(__NR_##name, arg1, arg2); \
}
#define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
{ \
return safe_syscall(__NR_##name, arg1, arg2, arg3); \
}
#define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
type4, arg4) \
static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
{ \
return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \
}
#define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
type4, arg4, type5, arg5) \
static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
type5 arg5) \
{ \
return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
}
#define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
type4, arg4, type5, arg5, type6, arg6) \
static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
type5 arg5, type6 arg6) \
{ \
return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
}
safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count)
safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count)
safe_syscall4(int, openat, int, dirfd, const char *, pathname, \
int, flags, mode_t, mode)
#if defined(TARGET_NR_wait4) || defined(TARGET_NR_waitpid)
safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \
struct rusage *, rusage)
#endif
safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \
int, options, struct rusage *, rusage)
safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp)
safe_syscall5(int, execveat, int, dirfd, const char *, filename,
char **, argv, char **, envp, int, flags)
#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) || \
defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \
fd_set *, exceptfds, struct timespec *, timeout, void *, sig)
#endif
#if defined(TARGET_NR_ppoll) || defined(TARGET_NR_ppoll_time64)
safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds,
struct timespec *, tsp, const sigset_t *, sigmask,
size_t, sigsetsize)
#endif
safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events,
int, maxevents, int, timeout, const sigset_t *, sigmask,
size_t, sigsetsize)
#if defined(__NR_futex)
safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \
const struct timespec *,timeout,int *,uaddr2,int,val3)
#endif
#if defined(__NR_futex_time64)
safe_syscall6(int,futex_time64,int *,uaddr,int,op,int,val, \
const struct timespec *,timeout,int *,uaddr2,int,val3)
#endif
safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize)
safe_syscall2(int, kill, pid_t, pid, int, sig)
safe_syscall2(int, tkill, int, tid, int, sig)
safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig)
safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt)
safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt)
safe_syscall5(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt,
unsigned long, pos_l, unsigned long, pos_h)
safe_syscall5(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt,
unsigned long, pos_l, unsigned long, pos_h)
safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr,
socklen_t, addrlen)
safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len,
int, flags, const struct sockaddr *, addr, socklen_t, addrlen)
safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len,
int, flags, struct sockaddr *, addr, socklen_t *, addrlen)
safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags)
safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags)
safe_syscall2(int, flock, int, fd, int, operation)
#if defined(TARGET_NR_rt_sigtimedwait) || defined(TARGET_NR_rt_sigtimedwait_time64)
safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo,
const struct timespec *, uts, size_t, sigsetsize)
#endif
safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len,
int, flags)
#if defined(TARGET_NR_nanosleep)
safe_syscall2(int, nanosleep, const struct timespec *, req,
struct timespec *, rem)
#endif
#if defined(TARGET_NR_clock_nanosleep) || \
defined(TARGET_NR_clock_nanosleep_time64)
safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags,
const struct timespec *, req, struct timespec *, rem)
#endif
#ifdef __NR_ipc
#ifdef __s390x__
safe_syscall5(int, ipc, int, call, long, first, long, second, long, third,
void *, ptr)
#else
safe_syscall6(int, ipc, int, call, long, first, long, second, long, third,
void *, ptr, long, fifth)
#endif
#endif
#ifdef __NR_msgsnd
safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz,
int, flags)
#endif
#ifdef __NR_msgrcv
safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz,
long, msgtype, int, flags)
#endif
#ifdef __NR_semtimedop
safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops,
unsigned, nsops, const struct timespec *, timeout)
#endif
#if defined(TARGET_NR_mq_timedsend) || \
defined(TARGET_NR_mq_timedsend_time64)
safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr,
size_t, len, unsigned, prio, const struct timespec *, timeout)
#endif
#if defined(TARGET_NR_mq_timedreceive) || \
defined(TARGET_NR_mq_timedreceive_time64)
safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr,
size_t, len, unsigned *, prio, const struct timespec *, timeout)
#endif
#if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range)
safe_syscall6(ssize_t, copy_file_range, int, infd, loff_t *, pinoff,
int, outfd, loff_t *, poutoff, size_t, length,
unsigned int, flags)
#endif
* "third argument might be integer or pointer or not present" behaviour of
* the libc function.
*/
#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
* pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
* use the flock64 struct rather than unsuffixed flock
* This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
*/
#ifdef __NR_fcntl64
#define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
#else
#define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__)
#endif
static inline int host_to_target_sock_type(int host_type)
{
int target_type;
switch (host_type & 0xf ) {
case SOCK_DGRAM:
target_type = TARGET_SOCK_DGRAM;
break;
case SOCK_STREAM:
target_type = TARGET_SOCK_STREAM;
break;
default:
target_type = host_type & 0xf ;
break;
}
#if defined(SOCK_CLOEXEC)
if (host_type & SOCK_CLOEXEC) {
target_type |= TARGET_SOCK_CLOEXEC;
}
#endif
#if defined(SOCK_NONBLOCK)
if (host_type & SOCK_NONBLOCK) {
target_type |= TARGET_SOCK_NONBLOCK;
}
#endif
return target_type;
}
static abi_ulong target_brk, initial_target_brk;
void target_set_brk(abi_ulong new_brk)
{
target_brk = TARGET_PAGE_ALIGN(new_brk);
initial_target_brk = target_brk;
}
abi_long do_brk(abi_ulong brk_val)
{
abi_long mapped_addr;
abi_ulong new_brk;
abi_ulong old_brk;
if (brk_val < initial_target_brk) {
return target_brk;
}
new_brk = TARGET_PAGE_ALIGN(brk_val);
old_brk = TARGET_PAGE_ALIGN(target_brk);
if (new_brk == old_brk) {
target_brk = brk_val;
return target_brk;
}
if (new_brk < old_brk) {
target_munmap(new_brk, old_brk - new_brk);
target_brk = brk_val;
return target_brk;
}
mapped_addr = target_mmap(old_brk, new_brk - old_brk,
PROT_READ | PROT_WRITE,
MAP_FIXED_NOREPLACE | MAP_ANON | MAP_PRIVATE,
-1, 0);
if (mapped_addr == old_brk) {
target_brk = brk_val;
return target_brk;
}
#if defined(TARGET_ALPHA)
return a proper errno, not an unchanged brk value. */
return -TARGET_ENOMEM;
#endif
return target_brk;
}
#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) || \
defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
static inline abi_long copy_from_user_fdset(fd_set *fds,
abi_ulong target_fds_addr,
int n)
{
int i, nw, j, k;
abi_ulong b, *target_fds;
nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
if (!(target_fds = lock_user(VERIFY_READ,
target_fds_addr,
sizeof(abi_ulong) * nw,
1)))
return -TARGET_EFAULT;
FD_ZERO(fds);
k = 0;
for (i = 0; i < nw; i++) {
__get_user(b, &target_fds[i]);
for (j = 0; j < TARGET_ABI_BITS; j++) {
if ((b >> j) & 1)
FD_SET(k, fds);
k++;
}
}
unlock_user(target_fds, target_fds_addr, 0);
return 0;
}
static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
abi_ulong target_fds_addr,
int n)
{
if (target_fds_addr) {
if (copy_from_user_fdset(fds, target_fds_addr, n))
return -TARGET_EFAULT;
*fds_ptr = fds;
} else {
*fds_ptr = NULL;
}
return 0;
}
static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
const fd_set *fds,
int n)
{
int i, nw, j, k;
abi_long v;
abi_ulong *target_fds;
nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
if (!(target_fds = lock_user(VERIFY_WRITE,
target_fds_addr,
sizeof(abi_ulong) * nw,
0)))
return -TARGET_EFAULT;
k = 0;
for (i = 0; i < nw; i++) {
v = 0;
for (j = 0; j < TARGET_ABI_BITS; j++) {
v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
k++;
}
__put_user(v, &target_fds[i]);
}
unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
return 0;
}
#endif
#if defined(__alpha__)
#define HOST_HZ 1024
#else
#define HOST_HZ 100
#endif
static inline abi_long host_to_target_clock_t(long ticks)
{
#if HOST_HZ == TARGET_HZ
return ticks;
#else
return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
#endif
}
static inline abi_long host_to_target_rusage(abi_ulong target_addr,
const struct rusage *rusage)
{
struct target_rusage *target_rusage;
if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
return -TARGET_EFAULT;
target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
unlock_user_struct(target_rusage, target_addr, 1);
return 0;
}
#ifdef TARGET_NR_setrlimit
static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
{
abi_ulong target_rlim_swap;
rlim_t result;
target_rlim_swap = tswapal(target_rlim);
if (target_rlim_swap == TARGET_RLIM_INFINITY)
return RLIM_INFINITY;
result = target_rlim_swap;
if (target_rlim_swap != (rlim_t)result)
return RLIM_INFINITY;
return result;
}
#endif
#if defined(TARGET_NR_getrlimit) || defined(TARGET_NR_ugetrlimit)
static inline abi_ulong host_to_target_rlim(rlim_t rlim)
{
abi_ulong target_rlim_swap;
abi_ulong result;
if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
target_rlim_swap = TARGET_RLIM_INFINITY;
else
target_rlim_swap = rlim;
result = tswapal(target_rlim_swap);
return result;
}
#endif
static inline int target_to_host_resource(int code)
{
switch (code) {
case TARGET_RLIMIT_AS:
return RLIMIT_AS;
case TARGET_RLIMIT_CORE:
return RLIMIT_CORE;
case TARGET_RLIMIT_CPU:
return RLIMIT_CPU;
case TARGET_RLIMIT_DATA:
return RLIMIT_DATA;
case TARGET_RLIMIT_FSIZE:
return RLIMIT_FSIZE;
case TARGET_RLIMIT_LOCKS:
return RLIMIT_LOCKS;
case TARGET_RLIMIT_MEMLOCK:
return RLIMIT_MEMLOCK;
case TARGET_RLIMIT_MSGQUEUE:
return RLIMIT_MSGQUEUE;
case TARGET_RLIMIT_NICE:
return RLIMIT_NICE;
case TARGET_RLIMIT_NOFILE:
return RLIMIT_NOFILE;
case TARGET_RLIMIT_NPROC:
return RLIMIT_NPROC;
case TARGET_RLIMIT_RSS:
return RLIMIT_RSS;
case TARGET_RLIMIT_RTPRIO:
return RLIMIT_RTPRIO;
#ifdef RLIMIT_RTTIME
case TARGET_RLIMIT_RTTIME:
return RLIMIT_RTTIME;
#endif
case TARGET_RLIMIT_SIGPENDING:
return RLIMIT_SIGPENDING;
case TARGET_RLIMIT_STACK:
return RLIMIT_STACK;
default:
return code;
}
}
static inline abi_long copy_from_user_timeval(struct timeval *tv,
abi_ulong target_tv_addr)
{
struct target_timeval *target_tv;
if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) {
return -TARGET_EFAULT;
}
__get_user(tv->tv_sec, &target_tv->tv_sec);
__get_user(tv->tv_usec, &target_tv->tv_usec);
unlock_user_struct(target_tv, target_tv_addr, 0);
return 0;
}
static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
const struct timeval *tv)
{
struct target_timeval *target_tv;
if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) {
return -TARGET_EFAULT;
}
__put_user(tv->tv_sec, &target_tv->tv_sec);
__put_user(tv->tv_usec, &target_tv->tv_usec);
unlock_user_struct(target_tv, target_tv_addr, 1);
return 0;
}
#if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
static inline abi_long copy_from_user_timeval64(struct timeval *tv,
abi_ulong target_tv_addr)
{
struct target__kernel_sock_timeval *target_tv;
if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) {
return -TARGET_EFAULT;
}
__get_user(tv->tv_sec, &target_tv->tv_sec);
__get_user(tv->tv_usec, &target_tv->tv_usec);
unlock_user_struct(target_tv, target_tv_addr, 0);
return 0;
}
#endif
static inline abi_long copy_to_user_timeval64(abi_ulong target_tv_addr,
const struct timeval *tv)
{
struct target__kernel_sock_timeval *target_tv;
if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) {
return -TARGET_EFAULT;
}
__put_user(tv->tv_sec, &target_tv->tv_sec);
__put_user(tv->tv_usec, &target_tv->tv_usec);
unlock_user_struct(target_tv, target_tv_addr, 1);
return 0;
}
#if defined(TARGET_NR_futex) || \
defined(TARGET_NR_rt_sigtimedwait) || \
defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6) || \
defined(TARGET_NR_nanosleep) || defined(TARGET_NR_clock_settime) || \
defined(TARGET_NR_utimensat) || defined(TARGET_NR_mq_timedsend) || \
defined(TARGET_NR_mq_timedreceive) || defined(TARGET_NR_ipc) || \
defined(TARGET_NR_semop) || defined(TARGET_NR_semtimedop) || \
defined(TARGET_NR_timer_settime) || \
(defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD))
static inline abi_long target_to_host_timespec(struct timespec *host_ts,
abi_ulong target_addr)
{
struct target_timespec *target_ts;
if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) {
return -TARGET_EFAULT;
}
__get_user(host_ts->tv_sec, &target_ts->tv_sec);
__get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
unlock_user_struct(target_ts, target_addr, 0);
return 0;
}
#endif
#if defined(TARGET_NR_clock_settime64) || defined(TARGET_NR_futex_time64) || \
defined(TARGET_NR_timer_settime64) || \
defined(TARGET_NR_mq_timedsend_time64) || \
defined(TARGET_NR_mq_timedreceive_time64) || \
(defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD)) || \
defined(TARGET_NR_clock_nanosleep_time64) || \
defined(TARGET_NR_rt_sigtimedwait_time64) || \
defined(TARGET_NR_utimensat) || \
defined(TARGET_NR_utimensat_time64) || \
defined(TARGET_NR_semtimedop_time64) || \
defined(TARGET_NR_pselect6_time64) || defined(TARGET_NR_ppoll_time64)
static inline abi_long target_to_host_timespec64(struct timespec *host_ts,
abi_ulong target_addr)
{
struct target__kernel_timespec *target_ts;
if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) {
return -TARGET_EFAULT;
}
__get_user(host_ts->tv_sec, &target_ts->tv_sec);
__get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
host_ts->tv_nsec = (long)(abi_long)host_ts->tv_nsec;
unlock_user_struct(target_ts, target_addr, 0);
return 0;
}
#endif
static inline abi_long host_to_target_timespec(abi_ulong target_addr,
struct timespec *host_ts)
{
struct target_timespec *target_ts;
if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) {
return -TARGET_EFAULT;
}
__put_user(host_ts->tv_sec, &target_ts->tv_sec);
__put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
unlock_user_struct(target_ts, target_addr, 1);
return 0;
}
static inline abi_long host_to_target_timespec64(abi_ulong target_addr,
struct timespec *host_ts)
{
struct target__kernel_timespec *target_ts;
if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) {
return -TARGET_EFAULT;
}
__put_user(host_ts->tv_sec, &target_ts->tv_sec);
__put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
unlock_user_struct(target_ts, target_addr, 1);
return 0;
}
#if defined(TARGET_NR_gettimeofday)
static inline abi_long copy_to_user_timezone(abi_ulong target_tz_addr,
struct timezone *tz)
{
struct target_timezone *target_tz;
if (!lock_user_struct(VERIFY_WRITE, target_tz, target_tz_addr, 1)) {
return -TARGET_EFAULT;
}
__put_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
__put_user(tz->tz_dsttime, &target_tz->tz_dsttime);
unlock_user_struct(target_tz, target_tz_addr, 1);
return 0;
}
#endif
#if defined(TARGET_NR_settimeofday)
static inline abi_long copy_from_user_timezone(struct timezone *tz,
abi_ulong target_tz_addr)
{
struct target_timezone *target_tz;
if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) {
return -TARGET_EFAULT;
}
__get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
__get_user(tz->tz_dsttime, &target_tz->tz_dsttime);
unlock_user_struct(target_tz, target_tz_addr, 0);
return 0;
}
#endif
#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
#include <mqueue.h>
static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
abi_ulong target_mq_attr_addr)
{
struct target_mq_attr *target_mq_attr;
if (!lock_user_struct(VERIFY_READ, target_mq_attr,
target_mq_attr_addr, 1))
return -TARGET_EFAULT;
__get_user(attr->mq_flags, &target_mq_attr->mq_flags);
__get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
__get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
__get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
return 0;
}
static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
const struct mq_attr *attr)
{
struct target_mq_attr *target_mq_attr;
if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
target_mq_attr_addr, 0))
return -TARGET_EFAULT;
__put_user(attr->mq_flags, &target_mq_attr->mq_flags);
__put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
__put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
__put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
return 0;
}
#endif
#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
static abi_long do_select(int n,
abi_ulong rfd_addr, abi_ulong wfd_addr,
abi_ulong efd_addr, abi_ulong target_tv_addr)
{
fd_set rfds, wfds, efds;
fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
struct timeval tv;
struct timespec ts, *ts_ptr;
abi_long ret;
ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
if (ret) {
return ret;
}
ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
if (ret) {
return ret;
}
ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
if (ret) {
return ret;
}
if (target_tv_addr) {
if (copy_from_user_timeval(&tv, target_tv_addr))
return -TARGET_EFAULT;
ts.tv_sec = tv.tv_sec;
ts.tv_nsec = tv.tv_usec * 1000;
ts_ptr = &ts;
} else {
ts_ptr = NULL;
}
ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
ts_ptr, NULL));
if (!is_error(ret)) {
if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
return -TARGET_EFAULT;
if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
return -TARGET_EFAULT;
if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
return -TARGET_EFAULT;
if (target_tv_addr) {
tv.tv_sec = ts.tv_sec;
tv.tv_usec = ts.tv_nsec / 1000;
if (copy_to_user_timeval(target_tv_addr, &tv)) {
return -TARGET_EFAULT;
}
}
}
return ret;
}
#if defined(TARGET_WANT_OLD_SYS_SELECT)
static abi_long do_old_select(abi_ulong arg1)
{
struct target_sel_arg_struct *sel;
abi_ulong inp, outp, exp, tvp;
long nsel;
if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) {
return -TARGET_EFAULT;
}
nsel = tswapal(sel->n);
inp = tswapal(sel->inp);
outp = tswapal(sel->outp);
exp = tswapal(sel->exp);
tvp = tswapal(sel->tvp);
unlock_user_struct(sel, arg1, 0);
return do_select(nsel, inp, outp, exp, tvp);
}
#endif
#endif
#if defined(TARGET_NR_pselect6) || defined(TARGET_NR_pselect6_time64)
static abi_long do_pselect6(abi_long arg1, abi_long arg2, abi_long arg3,
abi_long arg4, abi_long arg5, abi_long arg6,
bool time64)
{
abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
fd_set rfds, wfds, efds;
fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
struct timespec ts, *ts_ptr;
abi_long ret;
* The 6th arg is actually two args smashed together,
* so we cannot use the C library.
*/
struct {
sigset_t *set;
size_t size;
} sig, *sig_ptr;
abi_ulong arg_sigset, arg_sigsize, *arg7;
n = arg1;
rfd_addr = arg2;
wfd_addr = arg3;
efd_addr = arg4;
ts_addr = arg5;
ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
if (ret) {
return ret;
}
ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
if (ret) {
return ret;
}
ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
if (ret) {
return ret;
}
* This takes a timespec, and not a timeval, so we cannot
* use the do_select() helper ...
*/
if (ts_addr) {
if (time64) {
if (target_to_host_timespec64(&ts, ts_addr)) {
return -TARGET_EFAULT;
}
} else {
if (target_to_host_timespec(&ts, ts_addr)) {
return -TARGET_EFAULT;
}
}
ts_ptr = &ts;
} else {
ts_ptr = NULL;
}
sig_ptr = NULL;
if (arg6) {
arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
if (!arg7) {
return -TARGET_EFAULT;
}
arg_sigset = tswapal(arg7[0]);
arg_sigsize = tswapal(arg7[1]);
unlock_user(arg7, arg6, 0);
if (arg_sigset) {
ret = process_sigsuspend_mask(&sig.set, arg_sigset, arg_sigsize);
if (ret != 0) {
return ret;
}
sig_ptr = &sig;
sig.size = SIGSET_T_SIZE;
}
}
ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
ts_ptr, sig_ptr));
if (sig_ptr) {
finish_sigsuspend_mask(ret);
}
if (!is_error(ret)) {
if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) {
return -TARGET_EFAULT;
}
if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) {
return -TARGET_EFAULT;
}
if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) {
return -TARGET_EFAULT;
}
if (time64) {
if (ts_addr && host_to_target_timespec64(ts_addr, &ts)) {
return -TARGET_EFAULT;
}
} else {
if (ts_addr && host_to_target_timespec(ts_addr, &ts)) {
return -TARGET_EFAULT;
}
}
}
return ret;
}
#endif
#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll) || \
defined(TARGET_NR_ppoll_time64)
static abi_long do_ppoll(abi_long arg1, abi_long arg2, abi_long arg3,
abi_long arg4, abi_long arg5, bool ppoll, bool time64)
{
struct target_pollfd *target_pfd;
unsigned int nfds = arg2;
struct pollfd *pfd;
unsigned int i;
abi_long ret;
pfd = NULL;
target_pfd = NULL;
if (nfds) {
if (nfds > (INT_MAX / sizeof(struct target_pollfd))) {
return -TARGET_EINVAL;
}
target_pfd = lock_user(VERIFY_WRITE, arg1,
sizeof(struct target_pollfd) * nfds, 1);
if (!target_pfd) {
return -TARGET_EFAULT;
}
pfd = alloca(sizeof(struct pollfd) * nfds);
for (i = 0; i < nfds; i++) {
pfd[i].fd = tswap32(target_pfd[i].fd);
pfd[i].events = tswap16(target_pfd[i].events);
}
}
if (ppoll) {
struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
sigset_t *set = NULL;
if (arg3) {
if (time64) {
if (target_to_host_timespec64(timeout_ts, arg3)) {
unlock_user(target_pfd, arg1, 0);
return -TARGET_EFAULT;
}
} else {
if (target_to_host_timespec(timeout_ts, arg3)) {
unlock_user(target_pfd, arg1, 0);
return -TARGET_EFAULT;
}
}
} else {
timeout_ts = NULL;
}
if (arg4) {
ret = process_sigsuspend_mask(&set, arg4, arg5);
if (ret != 0) {
unlock_user(target_pfd, arg1, 0);
return ret;
}
}
ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts,
set, SIGSET_T_SIZE));
if (set) {
finish_sigsuspend_mask(ret);
}
if (!is_error(ret) && arg3) {
if (time64) {
if (host_to_target_timespec64(arg3, timeout_ts)) {
return -TARGET_EFAULT;
}
} else {
if (host_to_target_timespec(arg3, timeout_ts)) {
return -TARGET_EFAULT;
}
}
}
} else {
struct timespec ts, *pts;
if (arg3 >= 0) {
ts.tv_sec = arg3 / 1000;
ts.tv_nsec = (arg3 % 1000) * 1000000LL;
pts = &ts;
} else {
pts = NULL;
}
ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0));
}
if (!is_error(ret)) {
for (i = 0; i < nfds; i++) {
target_pfd[i].revents = tswap16(pfd[i].revents);
}
}
unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
return ret;
}
#endif
static abi_long do_pipe(CPUArchState *cpu_env, abi_ulong pipedes,
int flags, int is_pipe2)
{
int host_pipe[2];
abi_long ret;
ret = pipe2(host_pipe, flags);
if (is_error(ret))
return get_errno(ret);
pipe syscall, but didn't replicate this into the pipe2 syscall. */
if (!is_pipe2) {
#if defined(TARGET_ALPHA)
cpu_env->ir[IR_A4] = host_pipe[1];
return host_pipe[0];
#elif defined(TARGET_MIPS)
cpu_env->active_tc.gpr[3] = host_pipe[1];
return host_pipe[0];
#elif defined(TARGET_SH4)
cpu_env->gregs[1] = host_pipe[1];
return host_pipe[0];
#elif defined(TARGET_SPARC)
cpu_env->regwptr[1] = host_pipe[1];
return host_pipe[0];
#endif
}
if (put_user_s32(host_pipe[0], pipedes)
|| put_user_s32(host_pipe[1], pipedes + sizeof(abi_int)))
return -TARGET_EFAULT;
return get_errno(ret);
}
static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
abi_ulong target_addr,
socklen_t len)
{
struct target_ip_mreqn *target_smreqn;
target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
if (!target_smreqn)
return -TARGET_EFAULT;
mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
if (len == sizeof(struct target_ip_mreqn))
mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
unlock_user(target_smreqn, target_addr, 0);
return 0;
}
static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr,
abi_ulong target_addr,
socklen_t len)
{
const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
sa_family_t sa_family;
struct target_sockaddr *target_saddr;
if (fd_trans_target_to_host_addr(fd)) {
return fd_trans_target_to_host_addr(fd)(addr, target_addr, len);
}
target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
if (!target_saddr)
return -TARGET_EFAULT;
sa_family = tswap16(target_saddr->sa_family);
* must be terminated by \0 (see the manual page), but
* unfortunately it is quite common to specify sockaddr_un
* length as "strlen(x->sun_path)" while it should be
* "strlen(...) + 1". We'll fix that here if needed.
* Linux kernel has a similar feature.
*/
if (sa_family == AF_UNIX) {
if (len < unix_maxlen && len > 0) {
char *cp = (char*)target_saddr;
if ( cp[len-1] && !cp[len] )
len++;
}
if (len > unix_maxlen)
len = unix_maxlen;
}
memcpy(addr, target_saddr, len);
addr->sa_family = sa_family;
if (sa_family == AF_NETLINK) {
struct sockaddr_nl *nladdr;
nladdr = (struct sockaddr_nl *)addr;
nladdr->nl_pid = tswap32(nladdr->nl_pid);
nladdr->nl_groups = tswap32(nladdr->nl_groups);
} else if (sa_family == AF_PACKET) {
struct target_sockaddr_ll *lladdr;
lladdr = (struct target_sockaddr_ll *)addr;
lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
lladdr->sll_hatype = tswap16(lladdr->sll_hatype);
} else if (sa_family == AF_INET6) {
struct sockaddr_in6 *in6addr;
in6addr = (struct sockaddr_in6 *)addr;
in6addr->sin6_scope_id = tswap32(in6addr->sin6_scope_id);
}
unlock_user(target_saddr, target_addr, 0);
return 0;
}
static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
struct sockaddr *addr,
socklen_t len)
{
struct target_sockaddr *target_saddr;
if (len == 0) {
return 0;
}
assert(addr);
target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
if (!target_saddr)
return -TARGET_EFAULT;
memcpy(target_saddr, addr, len);
if (len >= offsetof(struct target_sockaddr, sa_family) +
sizeof(target_saddr->sa_family)) {
target_saddr->sa_family = tswap16(addr->sa_family);
}
if (addr->sa_family == AF_NETLINK &&
len >= sizeof(struct target_sockaddr_nl)) {
struct target_sockaddr_nl *target_nl =
(struct target_sockaddr_nl *)target_saddr;
target_nl->nl_pid = tswap32(target_nl->nl_pid);
target_nl->nl_groups = tswap32(target_nl->nl_groups);
} else if (addr->sa_family == AF_PACKET) {
struct sockaddr_ll *target_ll = (struct sockaddr_ll *)target_saddr;
target_ll->sll_ifindex = tswap32(target_ll->sll_ifindex);
target_ll->sll_hatype = tswap16(target_ll->sll_hatype);
} else if (addr->sa_family == AF_INET6 &&
len >= sizeof(struct target_sockaddr_in6)) {
struct target_sockaddr_in6 *target_in6 =
(struct target_sockaddr_in6 *)target_saddr;
target_in6->sin6_scope_id = tswap16(target_in6->sin6_scope_id);
}
unlock_user(target_saddr, target_addr, len);
return 0;
}
static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
struct target_msghdr *target_msgh)
{
struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
abi_long msg_controllen;
abi_ulong target_cmsg_addr;
struct target_cmsghdr *target_cmsg, *target_cmsg_start;
socklen_t space = 0;
msg_controllen = tswapal(target_msgh->msg_controllen);
if (msg_controllen < sizeof (struct target_cmsghdr))
goto the_end;
target_cmsg_addr = tswapal(target_msgh->msg_control);
target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
target_cmsg_start = target_cmsg;
if (!target_cmsg)
return -TARGET_EFAULT;
while (cmsg && target_cmsg) {
void *data = CMSG_DATA(cmsg);
void *target_data = TARGET_CMSG_DATA(target_cmsg);
int len = tswapal(target_cmsg->cmsg_len)
- sizeof(struct target_cmsghdr);
space += CMSG_SPACE(len);
if (space > msgh->msg_controllen) {
space -= CMSG_SPACE(len);
* area ourselves (unlike overflow in host-to-target
* conversion, which is just the guest giving us a buffer
* that's too small). It can't happen for the payload types
* we currently support; if it becomes an issue in future
* we would need to improve our allocation strategy to
* something more intelligent than "twice the size of the
* target buffer we're reading from".
*/
qemu_log_mask(LOG_UNIMP,
("Unsupported ancillary data %d/%d: "
"unhandled msg size\n"),
tswap32(target_cmsg->cmsg_level),
tswap32(target_cmsg->cmsg_type));
break;
}
if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
cmsg->cmsg_level = SOL_SOCKET;
} else {
cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
}
cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
cmsg->cmsg_len = CMSG_LEN(len);
if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
int *fd = (int *)data;
int *target_fd = (int *)target_data;
int i, numfds = len / sizeof(int);
for (i = 0; i < numfds; i++) {
__get_user(fd[i], target_fd + i);
}
} else if (cmsg->cmsg_level == SOL_SOCKET
&& cmsg->cmsg_type == SCM_CREDENTIALS) {
struct ucred *cred = (struct ucred *)data;
struct target_ucred *target_cred =
(struct target_ucred *)target_data;
__get_user(cred->pid, &target_cred->pid);
__get_user(cred->uid, &target_cred->uid);
__get_user(cred->gid, &target_cred->gid);
} else if (cmsg->cmsg_level == SOL_ALG) {
uint32_t *dst = (uint32_t *)data;
memcpy(dst, target_data, len);
if (len >= sizeof(uint32_t)) {
*dst = tswap32(*dst);
}
} else {
qemu_log_mask(LOG_UNIMP, "Unsupported ancillary data: %d/%d\n",
cmsg->cmsg_level, cmsg->cmsg_type);
memcpy(data, target_data, len);
}
cmsg = CMSG_NXTHDR(msgh, cmsg);
target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
target_cmsg_start);
}
unlock_user(target_cmsg, target_cmsg_addr, 0);
the_end:
msgh->msg_controllen = space;
return 0;
}
static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
struct msghdr *msgh)
{
struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
abi_long msg_controllen;
abi_ulong target_cmsg_addr;
struct target_cmsghdr *target_cmsg, *target_cmsg_start;
socklen_t space = 0;
msg_controllen = tswapal(target_msgh->msg_controllen);
if (msg_controllen < sizeof (struct target_cmsghdr))
goto the_end;
target_cmsg_addr = tswapal(target_msgh->msg_control);
target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
target_cmsg_start = target_cmsg;
if (!target_cmsg)
return -TARGET_EFAULT;
while (cmsg && target_cmsg) {
void *data = CMSG_DATA(cmsg);
void *target_data = TARGET_CMSG_DATA(target_cmsg);
int len = cmsg->cmsg_len - sizeof(struct cmsghdr);
int tgt_len, tgt_space;
* this is Linux's behaviour in put_cmsg(). Note that
* truncation here is a guest problem (which we report
* to the guest via the CTRUNC bit), unlike truncation
* in target_to_host_cmsg, which is a QEMU bug.
*/
if (msg_controllen < sizeof(struct target_cmsghdr)) {
target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
break;
}
if (cmsg->cmsg_level == SOL_SOCKET) {
target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
} else {
target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
}
target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
* the target must adjust tgt_len here.
*/
tgt_len = len;
switch (cmsg->cmsg_level) {
case SOL_SOCKET:
switch (cmsg->cmsg_type) {
case SO_TIMESTAMP:
tgt_len = sizeof(struct target_timeval);
break;
default:
break;
}
break;
default:
break;
}
if (msg_controllen < TARGET_CMSG_LEN(tgt_len)) {
target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
tgt_len = msg_controllen - sizeof(struct target_cmsghdr);
}
* into tgt_len bytes of destination space. Bear in mind
* that in both source and destination we may be dealing
* with a truncated value!
*/
switch (cmsg->cmsg_level) {
case SOL_SOCKET:
switch (cmsg->cmsg_type) {
case SCM_RIGHTS:
{
int *fd = (int *)data;
int *target_fd = (int *)target_data;
int i, numfds = tgt_len / sizeof(int);
for (i = 0; i < numfds; i++) {
__put_user(fd[i], target_fd + i);
}
break;
}
case SO_TIMESTAMP:
{
struct timeval *tv = (struct timeval *)data;
struct target_timeval *target_tv =
(struct target_timeval *)target_data;
if (len != sizeof(struct timeval) ||
tgt_len != sizeof(struct target_timeval)) {
goto unimplemented;
}
__put_user(tv->tv_sec, &target_tv->tv_sec);
__put_user(tv->tv_usec, &target_tv->tv_usec);
break;
}
case SCM_CREDENTIALS:
{
struct ucred *cred = (struct ucred *)data;
struct target_ucred *target_cred =
(struct target_ucred *)target_data;
__put_user(cred->pid, &target_cred->pid);
__put_user(cred->uid, &target_cred->uid);
__put_user(cred->gid, &target_cred->gid);
break;
}
default:
goto unimplemented;
}
break;
case SOL_IP:
switch (cmsg->cmsg_type) {
case IP_TTL:
{
uint32_t *v = (uint32_t *)data;
uint32_t *t_int = (uint32_t *)target_data;
if (len != sizeof(uint32_t) ||
tgt_len != sizeof(uint32_t)) {
goto unimplemented;
}
__put_user(*v, t_int);
break;
}
case IP_RECVERR:
{
struct errhdr_t {
struct sock_extended_err ee;
struct sockaddr_in offender;
};
struct errhdr_t *errh = (struct errhdr_t *)data;
struct errhdr_t *target_errh =
(struct errhdr_t *)target_data;
if (len != sizeof(struct errhdr_t) ||
tgt_len != sizeof(struct errhdr_t)) {
goto unimplemented;
}
__put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
__put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
__put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
__put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
__put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
__put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
__put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
host_to_target_sockaddr((unsigned long) &target_errh->offender,
(void *) &errh->offender, sizeof(errh->offender));
break;
}
default:
goto unimplemented;
}
break;
case SOL_IPV6:
switch (cmsg->cmsg_type) {
case IPV6_HOPLIMIT:
{
uint32_t *v = (uint32_t *)data;
uint32_t *t_int = (uint32_t *)target_data;
if (len != sizeof(uint32_t) ||
tgt_len != sizeof(uint32_t)) {
goto unimplemented;
}
__put_user(*v, t_int);
break;
}
case IPV6_RECVERR:
{
struct errhdr6_t {
struct sock_extended_err ee;
struct sockaddr_in6 offender;
};
struct errhdr6_t *errh = (struct errhdr6_t *)data;
struct errhdr6_t *target_errh =
(struct errhdr6_t *)target_data;
if (len != sizeof(struct errhdr6_t) ||
tgt_len != sizeof(struct errhdr6_t)) {
goto unimplemented;
}
__put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
__put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
__put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
__put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
__put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
__put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
__put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
host_to_target_sockaddr((unsigned long) &target_errh->offender,
(void *) &errh->offender, sizeof(errh->offender));
break;
}
default:
goto unimplemented;
}
break;
default:
unimplemented:
qemu_log_mask(LOG_UNIMP, "Unsupported ancillary data: %d/%d\n",
cmsg->cmsg_level, cmsg->cmsg_type);
memcpy(target_data, data, MIN(len, tgt_len));
if (tgt_len > len) {
memset(target_data + len, 0, tgt_len - len);
}
}
target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(tgt_len));
tgt_space = TARGET_CMSG_SPACE(tgt_len);
if (msg_controllen < tgt_space) {
tgt_space = msg_controllen;
}
msg_controllen -= tgt_space;
space += tgt_space;
cmsg = CMSG_NXTHDR(msgh, cmsg);
target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
target_cmsg_start);
}
unlock_user(target_cmsg, target_cmsg_addr, space);
the_end:
target_msgh->msg_controllen = tswapal(space);
return 0;
}
static abi_long do_setsockopt(int sockfd, int level, int optname,
abi_ulong optval_addr, socklen_t optlen)
{
abi_long ret;
int val;
struct ip_mreqn *ip_mreq;
struct ip_mreq_source *ip_mreq_source;
switch(level) {
case SOL_TCP:
case SOL_UDP:
if (optlen < sizeof(uint32_t))
return -TARGET_EINVAL;
if (get_user_u32(val, optval_addr))
return -TARGET_EFAULT;
ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
break;
case SOL_IP:
switch(optname) {
case IP_TOS:
case IP_TTL:
case IP_HDRINCL:
case IP_ROUTER_ALERT:
case IP_RECVOPTS:
case IP_RETOPTS:
case IP_PKTINFO:
case IP_MTU_DISCOVER:
case IP_RECVERR:
case IP_RECVTTL:
case IP_RECVTOS:
#ifdef IP_FREEBIND
case IP_FREEBIND:
#endif
case IP_MULTICAST_TTL:
case IP_MULTICAST_LOOP:
val = 0;
if (optlen >= sizeof(uint32_t)) {
if (get_user_u32(val, optval_addr))
return -TARGET_EFAULT;
} else if (optlen >= 1) {
if (get_user_u8(val, optval_addr))
return -TARGET_EFAULT;
}
ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
break;
case IP_ADD_MEMBERSHIP:
case IP_DROP_MEMBERSHIP:
if (optlen < sizeof (struct target_ip_mreq) ||
optlen > sizeof (struct target_ip_mreqn))
return -TARGET_EINVAL;
ip_mreq = (struct ip_mreqn *) alloca(optlen);
target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
break;
case IP_BLOCK_SOURCE:
case IP_UNBLOCK_SOURCE:
case IP_ADD_SOURCE_MEMBERSHIP:
case IP_DROP_SOURCE_MEMBERSHIP:
if (optlen != sizeof (struct target_ip_mreq_source))
return -TARGET_EINVAL;
ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
if (!ip_mreq_source) {
return -TARGET_EFAULT;
}
ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
unlock_user (ip_mreq_source, optval_addr, 0);
break;
default:
goto unimplemented;
}
break;
case SOL_IPV6:
switch (optname) {
case IPV6_MTU_DISCOVER:
case IPV6_MTU:
case IPV6_V6ONLY:
case IPV6_RECVPKTINFO:
case IPV6_UNICAST_HOPS:
case IPV6_MULTICAST_HOPS:
case IPV6_MULTICAST_LOOP:
case IPV6_RECVERR:
case IPV6_RECVHOPLIMIT:
case IPV6_2292HOPLIMIT:
case IPV6_CHECKSUM:
case IPV6_ADDRFORM:
case IPV6_2292PKTINFO:
case IPV6_RECVTCLASS:
case IPV6_RECVRTHDR:
case IPV6_2292RTHDR:
case IPV6_RECVHOPOPTS:
case IPV6_2292HOPOPTS:
case IPV6_RECVDSTOPTS:
case IPV6_2292DSTOPTS:
case IPV6_TCLASS:
case IPV6_ADDR_PREFERENCES:
#ifdef IPV6_RECVPATHMTU
case IPV6_RECVPATHMTU:
#endif
#ifdef IPV6_TRANSPARENT
case IPV6_TRANSPARENT:
#endif
#ifdef IPV6_FREEBIND
case IPV6_FREEBIND:
#endif
#ifdef IPV6_RECVORIGDSTADDR
case IPV6_RECVORIGDSTADDR:
#endif
val = 0;
if (optlen < sizeof(uint32_t)) {
return -TARGET_EINVAL;
}
if (get_user_u32(val, optval_addr)) {
return -TARGET_EFAULT;
}
ret = get_errno(setsockopt(sockfd, level, optname,
&val, sizeof(val)));
break;
case IPV6_PKTINFO:
{
struct in6_pktinfo pki;
if (optlen < sizeof(pki)) {
return -TARGET_EINVAL;
}
if (copy_from_user(&pki, optval_addr, sizeof(pki))) {
return -TARGET_EFAULT;
}
pki.ipi6_ifindex = tswap32(pki.ipi6_ifindex);
ret = get_errno(setsockopt(sockfd, level, optname,
&pki, sizeof(pki)));
break;
}
case IPV6_ADD_MEMBERSHIP:
case IPV6_DROP_MEMBERSHIP:
{
struct ipv6_mreq ipv6mreq;
if (optlen < sizeof(ipv6mreq)) {
return -TARGET_EINVAL;
}
if (copy_from_user(&ipv6mreq, optval_addr, sizeof(ipv6mreq))) {
return -TARGET_EFAULT;
}
ipv6mreq.ipv6mr_interface = tswap32(ipv6mreq.ipv6mr_interface);
ret = get_errno(setsockopt(sockfd, level, optname,
&ipv6mreq, sizeof(ipv6mreq)));
break;
}
default:
goto unimplemented;
}
break;
case SOL_ICMPV6:
switch (optname) {
case ICMPV6_FILTER:
{
struct icmp6_filter icmp6f;
if (optlen > sizeof(icmp6f)) {
optlen = sizeof(icmp6f);
}
if (copy_from_user(&icmp6f, optval_addr, optlen)) {
return -TARGET_EFAULT;
}
for (val = 0; val < 8; val++) {
icmp6f.data[val] = tswap32(icmp6f.data[val]);
}
ret = get_errno(setsockopt(sockfd, level, optname,
&icmp6f, optlen));
break;
}
default:
goto unimplemented;
}
break;
case SOL_RAW:
switch (optname) {
case ICMP_FILTER:
case IPV6_CHECKSUM:
if (optlen < sizeof(uint32_t)) {
return -TARGET_EINVAL;
}
if (get_user_u32(val, optval_addr)) {
return -TARGET_EFAULT;
}
ret = get_errno(setsockopt(sockfd, level, optname,
&val, sizeof(val)));
break;
default:
goto unimplemented;
}
break;
#if defined(SOL_ALG) && defined(ALG_SET_KEY) && defined(ALG_SET_AEAD_AUTHSIZE)
case SOL_ALG:
switch (optname) {
case ALG_SET_KEY:
{
char *alg_key = g_malloc(optlen);
if (!alg_key) {
return -TARGET_ENOMEM;
}
if (copy_from_user(alg_key, optval_addr, optlen)) {
g_free(alg_key);
return -TARGET_EFAULT;
}
ret = get_errno(setsockopt(sockfd, level, optname,
alg_key, optlen));
g_free(alg_key);
break;
}
case ALG_SET_AEAD_AUTHSIZE:
{
ret = get_errno(setsockopt(sockfd, level, optname,
NULL, optlen));
break;
}
default:
goto unimplemented;
}
break;
#endif
case TARGET_SOL_SOCKET:
switch (optname) {
case TARGET_SO_RCVTIMEO:
{
struct timeval tv;
optname = SO_RCVTIMEO;
set_timeout:
if (optlen != sizeof(struct target_timeval)) {
return -TARGET_EINVAL;
}
if (copy_from_user_timeval(&tv, optval_addr)) {
return -TARGET_EFAULT;
}
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
&tv, sizeof(tv)));
return ret;
}
case TARGET_SO_SNDTIMEO:
optname = SO_SNDTIMEO;
goto set_timeout;
case TARGET_SO_ATTACH_FILTER:
{
struct target_sock_fprog *tfprog;
struct target_sock_filter *tfilter;
struct sock_fprog fprog;
struct sock_filter *filter;
int i;
if (optlen != sizeof(*tfprog)) {
return -TARGET_EINVAL;
}
if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
return -TARGET_EFAULT;
}
if (!lock_user_struct(VERIFY_READ, tfilter,
tswapal(tfprog->filter), 0)) {
unlock_user_struct(tfprog, optval_addr, 1);
return -TARGET_EFAULT;
}
fprog.len = tswap16(tfprog->len);
filter = g_try_new(struct sock_filter, fprog.len);
if (filter == NULL) {
unlock_user_struct(tfilter, tfprog->filter, 1);
unlock_user_struct(tfprog, optval_addr, 1);
return -TARGET_ENOMEM;
}
for (i = 0; i < fprog.len; i++) {
filter[i].code = tswap16(tfilter[i].code);
filter[i].jt = tfilter[i].jt;
filter[i].jf = tfilter[i].jf;
filter[i].k = tswap32(tfilter[i].k);
}
fprog.filter = filter;
ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
g_free(filter);
unlock_user_struct(tfilter, tfprog->filter, 1);
unlock_user_struct(tfprog, optval_addr, 1);
return ret;
}
case TARGET_SO_BINDTODEVICE:
{
char *dev_ifname, *addr_ifname;
if (optlen > IFNAMSIZ - 1) {
optlen = IFNAMSIZ - 1;
}
dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
if (!dev_ifname) {
return -TARGET_EFAULT;
}
optname = SO_BINDTODEVICE;
addr_ifname = alloca(IFNAMSIZ);
memcpy(addr_ifname, dev_ifname, optlen);
addr_ifname[optlen] = 0;
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
addr_ifname, optlen));
unlock_user (dev_ifname, optval_addr, 0);
return ret;
}
case TARGET_SO_LINGER:
{
struct linger lg;
struct target_linger *tlg;
if (optlen != sizeof(struct target_linger)) {
return -TARGET_EINVAL;
}
if (!lock_user_struct(VERIFY_READ, tlg, optval_addr, 1)) {
return -TARGET_EFAULT;
}
__get_user(lg.l_onoff, &tlg->l_onoff);
__get_user(lg.l_linger, &tlg->l_linger);
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, SO_LINGER,
&lg, sizeof(lg)));
unlock_user_struct(tlg, optval_addr, 0);
return ret;
}
case TARGET_SO_DEBUG:
optname = SO_DEBUG;
break;
case TARGET_SO_REUSEADDR:
optname = SO_REUSEADDR;
break;
#ifdef SO_REUSEPORT
case TARGET_SO_REUSEPORT:
optname = SO_REUSEPORT;
break;
#endif
case TARGET_SO_TYPE:
optname = SO_TYPE;
break;
case TARGET_SO_ERROR:
optname = SO_ERROR;
break;
case TARGET_SO_DONTROUTE:
optname = SO_DONTROUTE;
break;
case TARGET_SO_BROADCAST:
optname = SO_BROADCAST;
break;
case TARGET_SO_SNDBUF:
optname = SO_SNDBUF;
break;
case TARGET_SO_SNDBUFFORCE:
optname = SO_SNDBUFFORCE;
break;
case TARGET_SO_RCVBUF:
optname = SO_RCVBUF;
break;
case TARGET_SO_RCVBUFFORCE:
optname = SO_RCVBUFFORCE;
break;
case TARGET_SO_KEEPALIVE:
optname = SO_KEEPALIVE;
break;
case TARGET_SO_OOBINLINE:
optname = SO_OOBINLINE;
break;
case TARGET_SO_NO_CHECK:
optname = SO_NO_CHECK;
break;
case TARGET_SO_PRIORITY:
optname = SO_PRIORITY;
break;
#ifdef SO_BSDCOMPAT
case TARGET_SO_BSDCOMPAT:
optname = SO_BSDCOMPAT;
break;
#endif
case TARGET_SO_PASSCRED:
optname = SO_PASSCRED;
break;
case TARGET_SO_PASSSEC:
optname = SO_PASSSEC;
break;
case TARGET_SO_TIMESTAMP:
optname = SO_TIMESTAMP;
break;
case TARGET_SO_RCVLOWAT:
optname = SO_RCVLOWAT;
break;
default:
goto unimplemented;
}
if (optlen < sizeof(uint32_t))
return -TARGET_EINVAL;
if (get_user_u32(val, optval_addr))
return -TARGET_EFAULT;
ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
break;
#ifdef SOL_NETLINK
case SOL_NETLINK:
switch (optname) {
case NETLINK_PKTINFO:
case NETLINK_ADD_MEMBERSHIP:
case NETLINK_DROP_MEMBERSHIP:
case NETLINK_BROADCAST_ERROR:
case NETLINK_NO_ENOBUFS:
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
case NETLINK_LISTEN_ALL_NSID:
case NETLINK_CAP_ACK:
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
case NETLINK_EXT_ACK:
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
case NETLINK_GET_STRICT_CHK:
#endif
break;
default:
goto unimplemented;
}
val = 0;
if (optlen < sizeof(uint32_t)) {
return -TARGET_EINVAL;
}
if (get_user_u32(val, optval_addr)) {
return -TARGET_EFAULT;
}
ret = get_errno(setsockopt(sockfd, SOL_NETLINK, optname, &val,
sizeof(val)));
break;
#endif
default:
unimplemented:
qemu_log_mask(LOG_UNIMP, "Unsupported setsockopt level=%d optname=%d\n",
level, optname);
ret = -TARGET_ENOPROTOOPT;
}
return ret;
}
static abi_long do_getsockopt(int sockfd, int level, int optname,
abi_ulong optval_addr, abi_ulong optlen)
{
abi_long ret;
int len, val;
socklen_t lv;
switch(level) {
case TARGET_SOL_SOCKET:
level = SOL_SOCKET;
switch (optname) {
case TARGET_SO_PEERNAME:
goto unimplemented;
case TARGET_SO_RCVTIMEO: {
struct timeval tv;
socklen_t tvlen;
optname = SO_RCVTIMEO;
get_timeout:
if (get_user_u32(len, optlen)) {
return -TARGET_EFAULT;
}
if (len < 0) {
return -TARGET_EINVAL;
}
tvlen = sizeof(tv);
ret = get_errno(getsockopt(sockfd, level, optname,
&tv, &tvlen));
if (ret < 0) {
return ret;
}
if (len > sizeof(struct target_timeval)) {
len = sizeof(struct target_timeval);
}
if (copy_to_user_timeval(optval_addr, &tv)) {
return -TARGET_EFAULT;
}
if (put_user_u32(len, optlen)) {
return -TARGET_EFAULT;
}
break;
}
case TARGET_SO_SNDTIMEO:
optname = SO_SNDTIMEO;
goto get_timeout;
case TARGET_SO_PEERCRED: {
struct ucred cr;
socklen_t crlen;
struct target_ucred *tcr;
if (get_user_u32(len, optlen)) {
return -TARGET_EFAULT;
}
if (len < 0) {
return -TARGET_EINVAL;
}
crlen = sizeof(cr);
ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
&cr, &crlen));
if (ret < 0) {
return ret;
}
if (len > crlen) {
len = crlen;
}
if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
return -TARGET_EFAULT;
}
__put_user(cr.pid, &tcr->pid);
__put_user(cr.uid, &tcr->uid);
__put_user(cr.gid, &tcr->gid);
unlock_user_struct(tcr, optval_addr, 1);
if (put_user_u32(len, optlen)) {
return -TARGET_EFAULT;
}
break;
}
case TARGET_SO_PEERSEC: {
char *name;
if (get_user_u32(len, optlen)) {
return -TARGET_EFAULT;
}
if (len < 0) {
return -TARGET_EINVAL;
}
name = lock_user(VERIFY_WRITE, optval_addr, len, 0);
if (!name) {
return -TARGET_EFAULT;
}
lv = len;
ret = get_errno(getsockopt(sockfd, level, SO_PEERSEC,
name, &lv));
if (put_user_u32(lv, optlen)) {
ret = -TARGET_EFAULT;
}
unlock_user(name, optval_addr, lv);
break;
}
case TARGET_SO_LINGER:
{
struct linger lg;
socklen_t lglen;
struct target_linger *tlg;
if (get_user_u32(len, optlen)) {
return -TARGET_EFAULT;
}
if (len < 0) {
return -TARGET_EINVAL;
}
lglen = sizeof(lg);
ret = get_errno(getsockopt(sockfd, level, SO_LINGER,
&lg, &lglen));
if (ret < 0) {
return ret;
}
if (len > lglen) {
len = lglen;
}
if (!lock_user_struct(VERIFY_WRITE, tlg, optval_addr, 0)) {
return -TARGET_EFAULT;
}
__put_user(lg.l_onoff, &tlg->l_onoff);
__put_user(lg.l_linger, &tlg->l_linger);
unlock_user_struct(tlg, optval_addr, 1);
if (put_user_u32(len, optlen)) {
return -TARGET_EFAULT;
}
break;
}
case TARGET_SO_DEBUG:
optname = SO_DEBUG;
goto int_case;
case TARGET_SO_REUSEADDR:
optname = SO_REUSEADDR;
goto int_case;
#ifdef SO_REUSEPORT
case TARGET_SO_REUSEPORT:
optname = SO_REUSEPORT;
goto int_case;
#endif
case TARGET_SO_TYPE:
optname = SO_TYPE;
goto int_case;
case TARGET_SO_ERROR:
optname = SO_ERROR;
goto int_case;
case TARGET_SO_DONTROUTE:
optname = SO_DONTROUTE;
goto int_case;
case TARGET_SO_BROADCAST:
optname = SO_BROADCAST;
goto int_case;
case TARGET_SO_SNDBUF:
optname = SO_SNDBUF;
goto int_case;
case TARGET_SO_RCVBUF:
optname = SO_RCVBUF;
goto int_case;
case TARGET_SO_KEEPALIVE:
optname = SO_KEEPALIVE;
goto int_case;
case TARGET_SO_OOBINLINE:
optname = SO_OOBINLINE;
goto int_case;
case TARGET_SO_NO_CHECK:
optname = SO_NO_CHECK;
goto int_case;
case TARGET_SO_PRIORITY:
optname = SO_PRIORITY;
goto int_case;
#ifdef SO_BSDCOMPAT
case TARGET_SO_BSDCOMPAT:
optname = SO_BSDCOMPAT;
goto int_case;
#endif
case TARGET_SO_PASSCRED:
optname = SO_PASSCRED;
goto int_case;
case TARGET_SO_TIMESTAMP:
optname = SO_TIMESTAMP;
goto int_case;
case TARGET_SO_RCVLOWAT:
optname = SO_RCVLOWAT;
goto int_case;
case TARGET_SO_ACCEPTCONN:
optname = SO_ACCEPTCONN;
goto int_case;
case TARGET_SO_PROTOCOL:
optname = SO_PROTOCOL;
goto int_case;
case TARGET_SO_DOMAIN:
optname = SO_DOMAIN;
goto int_case;
default:
goto int_case;
}
break;
case SOL_TCP:
case SOL_UDP:
int_case:
if (get_user_u32(len, optlen))
return -TARGET_EFAULT;
if (len < 0)
return -TARGET_EINVAL;
lv = sizeof(lv);
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
if (ret < 0)
return ret;
switch (optname) {
case SO_TYPE:
val = host_to_target_sock_type(val);
break;
case SO_ERROR:
val = host_to_target_errno(val);
break;
}
if (len > lv)
len = lv;
if (len == 4) {
if (put_user_u32(val, optval_addr))
return -TARGET_EFAULT;
} else {
if (put_user_u8(val, optval_addr))
return -TARGET_EFAULT;
}
if (put_user_u32(len, optlen))
return -TARGET_EFAULT;
break;
case SOL_IP:
switch(optname) {
case IP_TOS:
case IP_TTL:
case IP_HDRINCL:
case IP_ROUTER_ALERT:
case IP_RECVOPTS:
case IP_RETOPTS:
case IP_PKTINFO:
case IP_MTU_DISCOVER:
case IP_RECVERR:
case IP_RECVTOS:
#ifdef IP_FREEBIND
case IP_FREEBIND:
#endif
case IP_MULTICAST_TTL:
case IP_MULTICAST_LOOP:
if (get_user_u32(len, optlen))
return -TARGET_EFAULT;
if (len < 0)
return -TARGET_EINVAL;
lv = sizeof(lv);
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
if (ret < 0)
return ret;
if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
len = 1;
if (put_user_u32(len, optlen)
|| put_user_u8(val, optval_addr))
return -TARGET_EFAULT;
} else {
if (len > sizeof(int))
len = sizeof(int);
if (put_user_u32(len, optlen)
|| put_user_u32(val, optval_addr))
return -TARGET_EFAULT;
}
break;
default:
ret = -TARGET_ENOPROTOOPT;
break;
}
break;
case SOL_IPV6:
switch (optname) {
case IPV6_MTU_DISCOVER:
case IPV6_MTU:
case IPV6_V6ONLY:
case IPV6_RECVPKTINFO:
case IPV6_UNICAST_HOPS:
case IPV6_MULTICAST_HOPS:
case IPV6_MULTICAST_LOOP:
case IPV6_RECVERR:
case IPV6_RECVHOPLIMIT:
case IPV6_2292HOPLIMIT:
case IPV6_CHECKSUM:
case IPV6_ADDRFORM:
case IPV6_2292PKTINFO:
case IPV6_RECVTCLASS:
case IPV6_RECVRTHDR:
case IPV6_2292RTHDR:
case IPV6_RECVHOPOPTS:
case IPV6_2292HOPOPTS:
case IPV6_RECVDSTOPTS:
case IPV6_2292DSTOPTS:
case IPV6_TCLASS:
case IPV6_ADDR_PREFERENCES:
#ifdef IPV6_RECVPATHMTU
case IPV6_RECVPATHMTU:
#endif
#ifdef IPV6_TRANSPARENT
case IPV6_TRANSPARENT:
#endif
#ifdef IPV6_FREEBIND
case IPV6_FREEBIND:
#endif
#ifdef IPV6_RECVORIGDSTADDR
case IPV6_RECVORIGDSTADDR:
#endif
if (get_user_u32(len, optlen))
return -TARGET_EFAULT;
if (len < 0)
return -TARGET_EINVAL;
lv = sizeof(lv);
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
if (ret < 0)
return ret;
if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
len = 1;
if (put_user_u32(len, optlen)
|| put_user_u8(val, optval_addr))
return -TARGET_EFAULT;
} else {
if (len > sizeof(int))
len = sizeof(int);
if (put_user_u32(len, optlen)
|| put_user_u32(val, optval_addr))
return -TARGET_EFAULT;
}
break;
default:
ret = -TARGET_ENOPROTOOPT;
break;
}
break;
#ifdef SOL_NETLINK
case SOL_NETLINK:
switch (optname) {
case NETLINK_PKTINFO:
case NETLINK_BROADCAST_ERROR:
case NETLINK_NO_ENOBUFS:
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
case NETLINK_LISTEN_ALL_NSID:
case NETLINK_CAP_ACK:
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
case NETLINK_EXT_ACK:
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 20, 0)
case NETLINK_GET_STRICT_CHK:
#endif
if (get_user_u32(len, optlen)) {
return -TARGET_EFAULT;
}
if (len != sizeof(val)) {
return -TARGET_EINVAL;
}
lv = len;
ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
if (ret < 0) {
return ret;
}
if (put_user_u32(lv, optlen)
|| put_user_u32(val, optval_addr)) {
return -TARGET_EFAULT;
}
break;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
case NETLINK_LIST_MEMBERSHIPS:
{
uint32_t *results;
int i;
if (get_user_u32(len, optlen)) {
return -TARGET_EFAULT;
}
if (len < 0) {
return -TARGET_EINVAL;
}
results = lock_user(VERIFY_WRITE, optval_addr, len, 1);
if (!results && len > 0) {
return -TARGET_EFAULT;
}
lv = len;
ret = get_errno(getsockopt(sockfd, level, optname, results, &lv));
if (ret < 0) {
unlock_user(results, optval_addr, 0);
return ret;
}
for (i = 0; i < (len / sizeof(uint32_t)); i++) {
results[i] = tswap32(results[i]);
}
if (put_user_u32(lv, optlen)) {
return -TARGET_EFAULT;
}
unlock_user(results, optval_addr, 0);
break;
}
#endif
default:
goto unimplemented;
}
break;
#endif
default:
unimplemented:
qemu_log_mask(LOG_UNIMP,
"getsockopt level=%d optname=%d not yet supported\n",
level, optname);
ret = -TARGET_EOPNOTSUPP;
break;
}
return ret;
}
* low/high pair. This function doesn't handle offsets bigger than 64 bits
* as the kernel doesn't handle them either.
*/
static void target_to_host_low_high(abi_ulong tlow,
abi_ulong thigh,
unsigned long *hlow,
unsigned long *hhigh)
{
uint64_t off = tlow |
((unsigned long long)thigh << TARGET_LONG_BITS / 2) <<
TARGET_LONG_BITS / 2;
*hlow = off;
*hhigh = (off >> HOST_LONG_BITS / 2) >> HOST_LONG_BITS / 2;
}
static struct iovec *lock_iovec(int type, abi_ulong target_addr,
abi_ulong count, int copy)
{
struct target_iovec *target_vec;
struct iovec *vec;
abi_ulong total_len, max_len;
int i;
int err = 0;
bool bad_address = false;
if (count == 0) {
errno = 0;
return NULL;
}
if (count > IOV_MAX) {
errno = EINVAL;
return NULL;
}
vec = g_try_new0(struct iovec, count);
if (vec == NULL) {
errno = ENOMEM;
return NULL;
}
target_vec = lock_user(VERIFY_READ, target_addr,
count * sizeof(struct target_iovec), 1);
if (target_vec == NULL) {
err = EFAULT;
goto fail2;
}
value larger than what we can actually support. */
max_len = 0x7fffffff & TARGET_PAGE_MASK;
total_len = 0;
for (i = 0; i < count; i++) {
abi_ulong base = tswapal(target_vec[i].iov_base);
abi_long len = tswapal(target_vec[i].iov_len);
if (len < 0) {
err = EINVAL;
goto fail;
} else if (len == 0) {
vec[i].iov_base = 0;
} else {
vec[i].iov_base = lock_user(type, base, len, copy);
* subsequent bad buffers will result in a partial write; this
* is realized by filling the vector with null pointers and
* zero lengths. */
if (!vec[i].iov_base) {
if (i == 0) {
err = EFAULT;
goto fail;
} else {
bad_address = true;
}
}
if (bad_address) {
len = 0;
}
if (len > max_len - total_len) {
len = max_len - total_len;
}
}
vec[i].iov_len = len;
total_len += len;
}
unlock_user(target_vec, target_addr, 0);
return vec;
fail:
while (--i >= 0) {
if (tswapal(target_vec[i].iov_len) > 0) {
unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0);
}
}
unlock_user(target_vec, target_addr, 0);
fail2:
g_free(vec);
errno = err;
return NULL;
}
static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
abi_ulong count, int copy)
{
struct target_iovec *target_vec;
int i;
target_vec = lock_user(VERIFY_READ, target_addr,
count * sizeof(struct target_iovec), 1);
if (target_vec) {
for (i = 0; i < count; i++) {
abi_ulong base = tswapal(target_vec[i].iov_base);
abi_long len = tswapal(target_vec[i].iov_len);
if (len < 0) {
break;
}
unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
}
unlock_user(target_vec, target_addr, 0);
}
g_free(vec);
}
static inline int target_to_host_sock_type(int *type)
{
int host_type = 0;
int target_type = *type;
switch (target_type & TARGET_SOCK_TYPE_MASK) {
case TARGET_SOCK_DGRAM:
host_type = SOCK_DGRAM;
break;
case TARGET_SOCK_STREAM:
host_type = SOCK_STREAM;
break;
default:
host_type = target_type & TARGET_SOCK_TYPE_MASK;
break;
}
if (target_type & TARGET_SOCK_CLOEXEC) {
#if defined(SOCK_CLOEXEC)
host_type |= SOCK_CLOEXEC;
#else
return -TARGET_EINVAL;
#endif
}
if (target_type & TARGET_SOCK_NONBLOCK) {
#if defined(SOCK_NONBLOCK)
host_type |= SOCK_NONBLOCK;
#elif !defined(O_NONBLOCK)
return -TARGET_EINVAL;
#endif
}
*type = host_type;
return 0;
}
static int sock_flags_fixup(int fd, int target_type)
{
#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
if (target_type & TARGET_SOCK_NONBLOCK) {
int flags = fcntl(fd, F_GETFL);
if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
close(fd);
return -TARGET_EINVAL;
}
}
#endif
return fd;
}
static abi_long do_socket(int domain, int type, int protocol)
{
int target_type = type;
int ret;
ret = target_to_host_sock_type(&type);
if (ret) {
return ret;
}
if (domain == PF_NETLINK && !(
#ifdef CONFIG_RTNETLINK
protocol == NETLINK_ROUTE ||
#endif
protocol == NETLINK_KOBJECT_UEVENT ||
protocol == NETLINK_AUDIT)) {
return -TARGET_EPROTONOSUPPORT;
}
if (domain == AF_PACKET ||
(domain == AF_INET && type == SOCK_PACKET)) {
protocol = tswap16(protocol);
}
ret = get_errno(socket(domain, type, protocol));
if (ret >= 0) {
ret = sock_flags_fixup(ret, target_type);
if (type == SOCK_PACKET) {
* if socket type is SOCK_PACKET, bind by name
*/
fd_trans_register(ret, &target_packet_trans);
} else if (domain == PF_NETLINK) {
switch (protocol) {
#ifdef CONFIG_RTNETLINK
case NETLINK_ROUTE:
fd_trans_register(ret, &target_netlink_route_trans);
break;
#endif
case NETLINK_KOBJECT_UEVENT:
break;
case NETLINK_AUDIT:
fd_trans_register(ret, &target_netlink_audit_trans);
break;
default:
g_assert_not_reached();
}
}
}
return ret;
}
static abi_long do_bind(int sockfd, abi_ulong target_addr,
socklen_t addrlen)
{
void *addr;
abi_long ret;
if ((int)addrlen < 0) {
return -TARGET_EINVAL;
}
addr = alloca(addrlen+1);
ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
if (ret)
return ret;
return get_errno(bind(sockfd, addr, addrlen));
}
static abi_long do_connect(int sockfd, abi_ulong target_addr,
socklen_t addrlen)
{
void *addr;
abi_long ret;
if ((int)addrlen < 0) {
return -TARGET_EINVAL;
}
addr = alloca(addrlen+1);
ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
if (ret)
return ret;
return get_errno(safe_connect(sockfd, addr, addrlen));
}
static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
int flags, int send)
{
abi_long ret, len;
struct msghdr msg;
abi_ulong count;
struct iovec *vec;
abi_ulong target_vec;
if (msgp->msg_name) {
msg.msg_namelen = tswap32(msgp->msg_namelen);
msg.msg_name = alloca(msg.msg_namelen+1);
ret = target_to_host_sockaddr(fd, msg.msg_name,
tswapal(msgp->msg_name),
msg.msg_namelen);
if (ret == -TARGET_EFAULT) {
* be ignored, so returning EFAULT immediately is wrong.
* Instead, pass a bad msg_name to the host kernel, and
* let it decide whether to return EFAULT or not.
*/
msg.msg_name = (void *)-1;
} else if (ret) {
goto out2;
}
} else {
msg.msg_name = NULL;
msg.msg_namelen = 0;
}
msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
msg.msg_control = alloca(msg.msg_controllen);
memset(msg.msg_control, 0, msg.msg_controllen);
msg.msg_flags = tswap32(msgp->msg_flags);
count = tswapal(msgp->msg_iovlen);
target_vec = tswapal(msgp->msg_iov);
if (count > IOV_MAX) {
* readv/writev, so we must catch it here before lock_iovec() does.
*/
ret = -TARGET_EMSGSIZE;
goto out2;
}
vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
target_vec, count, send);
if (vec == NULL) {
ret = -host_to_target_errno(errno);
if (!send || ret) {
goto out2;
}
}
msg.msg_iovlen = count;
msg.msg_iov = vec;
if (send) {
if (fd_trans_target_to_host_data(fd)) {
void *host_msg;
host_msg = g_malloc(msg.msg_iov->iov_len);
memcpy(host_msg, msg.msg_iov->iov_base, msg.msg_iov->iov_len);
ret = fd_trans_target_to_host_data(fd)(host_msg,
msg.msg_iov->iov_len);
if (ret >= 0) {
msg.msg_iov->iov_base = host_msg;
ret = get_errno(safe_sendmsg(fd, &msg, flags));
}
g_free(host_msg);
} else {
ret = target_to_host_cmsg(&msg, msgp);
if (ret == 0) {
ret = get_errno(safe_sendmsg(fd, &msg, flags));
}
}
} else {
ret = get_errno(safe_recvmsg(fd, &msg, flags));
if (!is_error(ret)) {
len = ret;
if (fd_trans_host_to_target_data(fd)) {
ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base,
MIN(msg.msg_iov->iov_len, len));
}
if (!is_error(ret)) {
ret = host_to_target_cmsg(msgp, &msg);
}
if (!is_error(ret)) {
msgp->msg_namelen = tswap32(msg.msg_namelen);
msgp->msg_flags = tswap32(msg.msg_flags);
if (msg.msg_name != NULL && msg.msg_name != (void *)-1) {
ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
msg.msg_name, msg.msg_namelen);
if (ret) {
goto out;
}
}
ret = len;
}
}
}
out:
if (vec) {
unlock_iovec(vec, target_vec, count, !send);
}
out2:
return ret;
}
static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
int flags, int send)
{
abi_long ret;
struct target_msghdr *msgp;
if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
msgp,
target_msg,
send ? 1 : 0)) {
return -TARGET_EFAULT;
}
ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
unlock_user_struct(msgp, target_msg, send ? 0 : 1);
return ret;
}
* so it might not have this *mmsg-specific flag either.
*/
#ifndef MSG_WAITFORONE
#define MSG_WAITFORONE 0x10000
#endif
static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
unsigned int vlen, unsigned int flags,
int send)
{
struct target_mmsghdr *mmsgp;
abi_long ret = 0;
int i;
if (vlen > UIO_MAXIOV) {
vlen = UIO_MAXIOV;
}
mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
if (!mmsgp) {
return -TARGET_EFAULT;
}
for (i = 0; i < vlen; i++) {
ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
if (is_error(ret)) {
break;
}
mmsgp[i].msg_len = tswap32(ret);
if (flags & MSG_WAITFORONE) {
flags |= MSG_DONTWAIT;
}
}
unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
* otherwise return the error.
*/
if (i) {
return i;
}
return ret;
}
static abi_long do_accept4(int fd, abi_ulong target_addr,
abi_ulong target_addrlen_addr, int flags)
{
socklen_t addrlen, ret_addrlen;
void *addr;
abi_long ret;
int host_flags;
if (flags & ~(TARGET_SOCK_CLOEXEC | TARGET_SOCK_NONBLOCK)) {
return -TARGET_EINVAL;
}
host_flags = 0;
if (flags & TARGET_SOCK_NONBLOCK) {
host_flags |= SOCK_NONBLOCK;
}
if (flags & TARGET_SOCK_CLOEXEC) {
host_flags |= SOCK_CLOEXEC;
}
if (target_addr == 0) {
return get_errno(safe_accept4(fd, NULL, NULL, host_flags));
}
if (get_user_u32(addrlen, target_addrlen_addr))
return -TARGET_EFAULT;
if ((int)addrlen < 0) {
return -TARGET_EINVAL;
}
if (!access_ok(thread_cpu, VERIFY_WRITE, target_addr, addrlen)) {
return -TARGET_EFAULT;
}
addr = alloca(addrlen);
ret_addrlen = addrlen;
ret = get_errno(safe_accept4(fd, addr, &ret_addrlen, host_flags));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
ret = -TARGET_EFAULT;
}
}
return ret;
}
static abi_long do_getpeername(int fd, abi_ulong target_addr,
abi_ulong target_addrlen_addr)
{
socklen_t addrlen, ret_addrlen;
void *addr;
abi_long ret;
if (get_user_u32(addrlen, target_addrlen_addr))
return -TARGET_EFAULT;
if ((int)addrlen < 0) {
return -TARGET_EINVAL;
}
if (!access_ok(thread_cpu, VERIFY_WRITE, target_addr, addrlen)) {
return -TARGET_EFAULT;
}
addr = alloca(addrlen);
ret_addrlen = addrlen;
ret = get_errno(getpeername(fd, addr, &ret_addrlen));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
ret = -TARGET_EFAULT;
}
}
return ret;
}
static abi_long do_getsockname(int fd, abi_ulong target_addr,
abi_ulong target_addrlen_addr)
{
socklen_t addrlen, ret_addrlen;
void *addr;
abi_long ret;
if (get_user_u32(addrlen, target_addrlen_addr))
return -TARGET_EFAULT;
if ((int)addrlen < 0) {
return -TARGET_EINVAL;
}
if (!access_ok(thread_cpu, VERIFY_WRITE, target_addr, addrlen)) {
return -TARGET_EFAULT;
}
addr = alloca(addrlen);
ret_addrlen = addrlen;
ret = get_errno(getsockname(fd, addr, &ret_addrlen));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, MIN(addrlen, ret_addrlen));
if (put_user_u32(ret_addrlen, target_addrlen_addr)) {
ret = -TARGET_EFAULT;
}
}
return ret;
}
static abi_long do_socketpair(int domain, int type, int protocol,
abi_ulong target_tab_addr)
{
int tab[2];
abi_long ret;
target_to_host_sock_type(&type);
ret = get_errno(socketpair(domain, type, protocol, tab));
if (!is_error(ret)) {
if (put_user_s32(tab[0], target_tab_addr)
|| put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
ret = -TARGET_EFAULT;
}
return ret;
}
static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
abi_ulong target_addr, socklen_t addrlen)
{
void *addr;
void *host_msg;
void *copy_msg = NULL;
abi_long ret;
if ((int)addrlen < 0) {
return -TARGET_EINVAL;
}
host_msg = lock_user(VERIFY_READ, msg, len, 1);
if (!host_msg)
return -TARGET_EFAULT;
if (fd_trans_target_to_host_data(fd)) {
copy_msg = host_msg;
host_msg = g_malloc(len);
memcpy(host_msg, copy_msg, len);
ret = fd_trans_target_to_host_data(fd)(host_msg, len);
if (ret < 0) {
goto fail;
}
}
if (target_addr) {
addr = alloca(addrlen+1);
ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen);
if (ret) {
goto fail;
}
ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen));
} else {
ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0));
}
fail:
if (copy_msg) {
g_free(host_msg);
host_msg = copy_msg;
}
unlock_user(host_msg, msg, 0);
return ret;
}
static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
abi_ulong target_addr,
abi_ulong target_addrlen)
{
socklen_t addrlen, ret_addrlen;
void *addr;
void *host_msg;
abi_long ret;
if (!msg) {
host_msg = NULL;
} else {
host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
if (!host_msg) {
return -TARGET_EFAULT;
}
}
if (target_addr) {
if (get_user_u32(addrlen, target_addrlen)) {
ret = -TARGET_EFAULT;
goto fail;
}
if ((int)addrlen < 0) {
ret = -TARGET_EINVAL;
goto fail;
}
addr = alloca(addrlen);
ret_addrlen = addrlen;
ret = get_errno(safe_recvfrom(fd, host_msg, len, flags,
addr, &ret_addrlen));
} else {
addr = NULL;
addrlen = 0;
ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0));
}
if (!is_error(ret)) {
if (fd_trans_host_to_target_data(fd)) {
abi_long trans;
trans = fd_trans_host_to_target_data(fd)(host_msg, MIN(ret, len));
if (is_error(trans)) {
ret = trans;
goto fail;
}
}
if (target_addr) {
host_to_target_sockaddr(target_addr, addr,
MIN(addrlen, ret_addrlen));
if (put_user_u32(ret_addrlen, target_addrlen)) {
ret = -TARGET_EFAULT;
goto fail;
}
}
unlock_user(host_msg, msg, len);
} else {
fail:
unlock_user(host_msg, msg, 0);
}
return ret;
}
#ifdef TARGET_NR_socketcall
static abi_long do_socketcall(int num, abi_ulong vptr)
{
static const unsigned nargs[] = {
[TARGET_SYS_SOCKET] = 3,
[TARGET_SYS_BIND] = 3,
[TARGET_SYS_CONNECT] = 3,
[TARGET_SYS_LISTEN] = 2,
[TARGET_SYS_ACCEPT] = 3,
[TARGET_SYS_GETSOCKNAME] = 3,
[TARGET_SYS_GETPEERNAME] = 3,
[TARGET_SYS_SOCKETPAIR] = 4,
[TARGET_SYS_SEND] = 4,
[TARGET_SYS_RECV] = 4,
[TARGET_SYS_SENDTO] = 6,
[TARGET_SYS_RECVFROM] = 6,
[TARGET_SYS_SHUTDOWN] = 2,
[TARGET_SYS_SETSOCKOPT] = 5,
[TARGET_SYS_GETSOCKOPT] = 5,
[TARGET_SYS_SENDMSG] = 3,
[TARGET_SYS_RECVMSG] = 3,
[TARGET_SYS_ACCEPT4] = 4,
[TARGET_SYS_RECVMMSG] = 4,
[TARGET_SYS_SENDMMSG] = 4,
};
abi_long a[6];
unsigned i;
if (num < 1 || num > TARGET_SYS_SENDMMSG) {
return -TARGET_EINVAL;
}
if (nargs[num] > ARRAY_SIZE(a)) {
return -TARGET_EINVAL;
}
for (i = 0; i < nargs[num]; ++i) {
if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
return -TARGET_EFAULT;
}
}
switch (num) {
case TARGET_SYS_SOCKET:
return do_socket(a[0], a[1], a[2]);
case TARGET_SYS_BIND:
return do_bind(a[0], a[1], a[2]);
case TARGET_SYS_CONNECT:
return do_connect(a[0], a[1], a[2]);
case TARGET_SYS_LISTEN:
return get_errno(listen(a[0], a[1]));
case TARGET_SYS_ACCEPT:
return do_accept4(a[0], a[1], a[2], 0);
case TARGET_SYS_GETSOCKNAME:
return do_getsockname(a[0], a[1], a[2]);
case TARGET_SYS_GETPEERNAME:
return do_getpeername(a[0], a[1], a[2]);
case TARGET_SYS_SOCKETPAIR:
return do_socketpair(a[0], a[1], a[2], a[3]);
case TARGET_SYS_SEND:
return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
case TARGET_SYS_RECV:
return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
case TARGET_SYS_SENDTO:
return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
case TARGET_SYS_RECVFROM:
return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
case TARGET_SYS_SHUTDOWN:
return get_errno(shutdown(a[0], a[1]));
case TARGET_SYS_SETSOCKOPT:
return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
case TARGET_SYS_GETSOCKOPT:
return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
case TARGET_SYS_SENDMSG:
return do_sendrecvmsg(a[0], a[1], a[2], 1);
case TARGET_SYS_RECVMSG:
return do_sendrecvmsg(a[0], a[1], a[2], 0);
case TARGET_SYS_ACCEPT4:
return do_accept4(a[0], a[1], a[2], a[3]);
case TARGET_SYS_RECVMMSG:
return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0);
case TARGET_SYS_SENDMMSG:
return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1);
default:
qemu_log_mask(LOG_UNIMP, "Unsupported socketcall: %d\n", num);
return -TARGET_EINVAL;
}
}
#endif
#ifndef TARGET_SEMID64_DS
struct target_semid64_ds
{
struct target_ipc_perm sem_perm;
abi_ulong sem_otime;
#if TARGET_ABI_BITS == 32
abi_ulong __unused1;
#endif
abi_ulong sem_ctime;
#if TARGET_ABI_BITS == 32
abi_ulong __unused2;
#endif
abi_ulong sem_nsems;
abi_ulong __unused3;
abi_ulong __unused4;
};
#endif
static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
abi_ulong target_addr)
{
struct target_ipc_perm *target_ip;
struct target_semid64_ds *target_sd;
if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
return -TARGET_EFAULT;
target_ip = &(target_sd->sem_perm);
host_ip->__key = tswap32(target_ip->__key);
host_ip->uid = tswap32(target_ip->uid);
host_ip->gid = tswap32(target_ip->gid);
host_ip->cuid = tswap32(target_ip->cuid);
host_ip->cgid = tswap32(target_ip->cgid);
#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
host_ip->mode = tswap32(target_ip->mode);
#else
host_ip->mode = tswap16(target_ip->mode);
#endif
#if defined(TARGET_PPC)
host_ip->__seq = tswap32(target_ip->__seq);
#else
host_ip->__seq = tswap16(target_ip->__seq);
#endif
unlock_user_struct(target_sd, target_addr, 0);
return 0;
}
static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
struct ipc_perm *host_ip)
{
struct target_ipc_perm *target_ip;
struct target_semid64_ds *target_sd;
if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
return -TARGET_EFAULT;
target_ip = &(target_sd->sem_perm);
target_ip->__key = tswap32(host_ip->__key);
target_ip->uid = tswap32(host_ip->uid);
target_ip->gid = tswap32(host_ip->gid);
target_ip->cuid = tswap32(host_ip->cuid);
target_ip->cgid = tswap32(host_ip->cgid);
#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
target_ip->mode = tswap32(host_ip->mode);
#else
target_ip->mode = tswap16(host_ip->mode);
#endif
#if defined(TARGET_PPC)
target_ip->__seq = tswap32(host_ip->__seq);
#else
target_ip->__seq = tswap16(host_ip->__seq);
#endif
unlock_user_struct(target_sd, target_addr, 1);
return 0;
}
static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
abi_ulong target_addr)
{
struct target_semid64_ds *target_sd;
if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
return -TARGET_EFAULT;
if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
return -TARGET_EFAULT;
host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
host_sd->sem_otime = tswapal(target_sd->sem_otime);
host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
unlock_user_struct(target_sd, target_addr, 0);
return 0;
}
static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
struct semid_ds *host_sd)
{
struct target_semid64_ds *target_sd;
if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
return -TARGET_EFAULT;
if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
return -TARGET_EFAULT;
target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
target_sd->sem_otime = tswapal(host_sd->sem_otime);
target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
unlock_user_struct(target_sd, target_addr, 1);
return 0;
}
struct target_seminfo {
int semmap;
int semmni;
int semmns;
int semmnu;
int semmsl;
int semopm;
int semume;
int semusz;
int semvmx;
int semaem;
};
static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
struct seminfo *host_seminfo)
{
struct target_seminfo *target_seminfo;
if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
return -TARGET_EFAULT;
__put_user(host_seminfo->semmap, &target_seminfo->semmap);
__put_user(host_seminfo->semmni, &target_seminfo->semmni);
__put_user(host_seminfo->semmns, &target_seminfo->semmns);
__put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
__put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
__put_user(host_seminfo->semopm, &target_seminfo->semopm);
__put_user(host_seminfo->semume, &target_seminfo->semume);
__put_user(host_seminfo->semusz, &target_seminfo->semusz);
__put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
__put_user(host_seminfo->semaem, &target_seminfo->semaem);
unlock_user_struct(target_seminfo, target_addr, 1);
return 0;
}
union semun {
int val;
struct semid_ds *buf;
unsigned short *array;
struct seminfo *__buf;
};
union target_semun {
int val;
abi_ulong buf;
abi_ulong array;
abi_ulong __buf;
};
static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
abi_ulong target_addr)
{
int nsems;
unsigned short *array;
union semun semun;
struct semid_ds semid_ds;
int i, ret;
semun.buf = &semid_ds;
ret = semctl(semid, 0, IPC_STAT, semun);
if (ret == -1)
return get_errno(ret);
nsems = semid_ds.sem_nsems;
*host_array = g_try_new(unsigned short, nsems);
if (!*host_array) {
return -TARGET_ENOMEM;
}
array = lock_user(VERIFY_READ, target_addr,
nsems*sizeof(unsigned short), 1);
if (!array) {
g_free(*host_array);
return -TARGET_EFAULT;
}
for(i=0; i<nsems; i++) {
__get_user((*host_array)[i], &array[i]);
}
unlock_user(array, target_addr, 0);
return 0;
}
static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
unsigned short **host_array)
{
int nsems;
unsigned short *array;
union semun semun;
struct semid_ds semid_ds;
int i, ret;
semun.buf = &semid_ds;
ret = semctl(semid, 0, IPC_STAT, semun);
if (ret == -1)
return get_errno(ret);
nsems = semid_ds.sem_nsems;
array = lock_user(VERIFY_WRITE, target_addr,
nsems*sizeof(unsigned short), 0);
if (!array)
return -TARGET_EFAULT;
for(i=0; i<nsems; i++) {
__put_user((*host_array)[i], &array[i]);
}
g_free(*host_array);
unlock_user(array, target_addr, 1);
return 0;
}
static inline abi_long do_semctl(int semid, int semnum, int cmd,
abi_ulong target_arg)
{
union target_semun target_su = { .buf = target_arg };
union semun arg;
struct semid_ds dsarg;
unsigned short *array = NULL;
struct seminfo seminfo;
abi_long ret = -TARGET_EINVAL;
abi_long err;
cmd &= 0xff;
switch( cmd ) {
case GETVAL:
case SETVAL:
* the wrong half of the union for the "val" element. To rectify
* this, the entire 8-byte structure is byteswapped, followed by
* a swap of the 4 byte val field. In other cases, the data is
* already in proper host byte order. */
if (sizeof(target_su.val) != (sizeof(target_su.buf))) {
target_su.buf = tswapal(target_su.buf);
arg.val = tswap32(target_su.val);
} else {
arg.val = target_su.val;
}
ret = get_errno(semctl(semid, semnum, cmd, arg));
break;
case GETALL:
case SETALL:
err = target_to_host_semarray(semid, &array, target_su.array);
if (err)
return err;
arg.array = array;
ret = get_errno(semctl(semid, semnum, cmd, arg));
err = host_to_target_semarray(semid, target_su.array, &array);
if (err)
return err;
break;
case IPC_STAT:
case IPC_SET:
case SEM_STAT:
err = target_to_host_semid_ds(&dsarg, target_su.buf);
if (err)
return err;
arg.buf = &dsarg;
ret = get_errno(semctl(semid, semnum, cmd, arg));
err = host_to_target_semid_ds(target_su.buf, &dsarg);
if (err)
return err;
break;
case IPC_INFO:
case SEM_INFO:
arg.__buf = &seminfo;
ret = get_errno(semctl(semid, semnum, cmd, arg));
err = host_to_target_seminfo(target_su.__buf, &seminfo);
if (err)
return err;
break;
case IPC_RMID:
case GETPID:
case GETNCNT:
case GETZCNT:
ret = get_errno(semctl(semid, semnum, cmd, NULL));
break;
}
return ret;
}
struct target_sembuf {
unsigned short sem_num;
short sem_op;
short sem_flg;
};
static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
abi_ulong target_addr,
unsigned nsops)
{
struct target_sembuf *target_sembuf;
int i;
target_sembuf = lock_user(VERIFY_READ, target_addr,
nsops*sizeof(struct target_sembuf), 1);
if (!target_sembuf)
return -TARGET_EFAULT;
for(i=0; i<nsops; i++) {
__get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
__get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
__get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
}
unlock_user(target_sembuf, target_addr, 0);
return 0;
}
#if defined(TARGET_NR_ipc) || defined(TARGET_NR_semop) || \
defined(TARGET_NR_semtimedop) || defined(TARGET_NR_semtimedop_time64)
* This macro is required to handle the s390 variants, which passes the
* arguments in a different order than default.
*/
#ifdef __s390x__
#define SEMTIMEDOP_IPC_ARGS(__nsops, __sops, __timeout) \
(__nsops), (__timeout), (__sops)
#else
#define SEMTIMEDOP_IPC_ARGS(__nsops, __sops, __timeout) \
(__nsops), 0, (__sops), (__timeout)
#endif
static inline abi_long do_semtimedop(int semid,
abi_long ptr,
unsigned nsops,
abi_long timeout, bool time64)
{
struct sembuf *sops;
struct timespec ts, *pts = NULL;
abi_long ret;
if (timeout) {
pts = &ts;
if (time64) {
if (target_to_host_timespec64(pts, timeout)) {
return -TARGET_EFAULT;
}
} else {
if (target_to_host_timespec(pts, timeout)) {
return -TARGET_EFAULT;
}
}
}
if (nsops > TARGET_SEMOPM) {
return -TARGET_E2BIG;
}
sops = g_new(struct sembuf, nsops);
if (target_to_host_sembuf(sops, ptr, nsops)) {
g_free(sops);
return -TARGET_EFAULT;
}
ret = -TARGET_ENOSYS;
#ifdef __NR_semtimedop
ret = get_errno(safe_semtimedop(semid, sops, nsops, pts));
#endif
#ifdef __NR_ipc
if (ret == -TARGET_ENOSYS) {
ret = get_errno(safe_ipc(IPCOP_semtimedop, semid,
SEMTIMEDOP_IPC_ARGS(nsops, sops, (long)pts)));
}
#endif
g_free(sops);
return ret;
}
#endif
struct target_msqid_ds
{
struct target_ipc_perm msg_perm;
abi_ulong msg_stime;
#if TARGET_ABI_BITS == 32
abi_ulong __unused1;
#endif
abi_ulong msg_rtime;
#if TARGET_ABI_BITS == 32
abi_ulong __unused2;
#endif
abi_ulong msg_ctime;
#if TARGET_ABI_BITS == 32
abi_ulong __unused3;
#endif
abi_ulong __msg_cbytes;
abi_ulong msg_qnum;
abi_ulong msg_qbytes;
abi_ulong msg_lspid;
abi_ulong msg_lrpid;
abi_ulong __unused4;
abi_ulong __unused5;
};
static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
abi_ulong target_addr)
{
struct target_msqid_ds *target_md;
if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
return -TARGET_EFAULT;
if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
return -TARGET_EFAULT;
host_md->msg_stime = tswapal(target_md->msg_stime);
host_md->msg_rtime = tswapal(target_md->msg_rtime);
host_md->msg_ctime = tswapal(target_md->msg_ctime);
host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
host_md->msg_qnum = tswapal(target_md->msg_qnum);
host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
host_md->msg_lspid = tswapal(target_md->msg_lspid);
host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
unlock_user_struct(target_md, target_addr, 0);
return 0;
}
static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
struct msqid_ds *host_md)
{
struct target_msqid_ds *target_md;
if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
return -TARGET_EFAULT;
if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
return -TARGET_EFAULT;
target_md->msg_stime = tswapal(host_md->msg_stime);
target_md->msg_rtime = tswapal(host_md->msg_rtime);
target_md->msg_ctime = tswapal(host_md->msg_ctime);
target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
target_md->msg_qnum = tswapal(host_md->msg_qnum);
target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
target_md->msg_lspid = tswapal(host_md->msg_lspid);
target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
unlock_user_struct(target_md, target_addr, 1);
return 0;
}
struct target_msginfo {
int msgpool;
int msgmap;
int msgmax;
int msgmnb;
int msgmni;
int msgssz;
int msgtql;
unsigned short int msgseg;
};
static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
struct msginfo *host_msginfo)
{
struct target_msginfo *target_msginfo;
if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
return -TARGET_EFAULT;
__put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
__put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
__put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
__put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
__put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
__put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
__put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
__put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
unlock_user_struct(target_msginfo, target_addr, 1);
return 0;
}
static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
{
struct msqid_ds dsarg;
struct msginfo msginfo;
abi_long ret = -TARGET_EINVAL;
cmd &= 0xff;
switch (cmd) {
case IPC_STAT:
case IPC_SET:
case MSG_STAT:
if (target_to_host_msqid_ds(&dsarg,ptr))
return -TARGET_EFAULT;
ret = get_errno(msgctl(msgid, cmd, &dsarg));
if (host_to_target_msqid_ds(ptr,&dsarg))
return -TARGET_EFAULT;
break;
case IPC_RMID:
ret = get_errno(msgctl(msgid, cmd, NULL));
break;
case IPC_INFO:
case MSG_INFO:
ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
if (host_to_target_msginfo(ptr, &msginfo))
return -TARGET_EFAULT;
break;
}
return ret;
}
struct target_msgbuf {
abi_long mtype;
char mtext[1];
};
static inline abi_long do_msgsnd(int msqid, abi_long msgp,
ssize_t msgsz, int msgflg)
{
struct target_msgbuf *target_mb;
struct msgbuf *host_mb;
abi_long ret = 0;
if (msgsz < 0) {
return -TARGET_EINVAL;
}
if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
return -TARGET_EFAULT;
host_mb = g_try_malloc(msgsz + sizeof(long));
if (!host_mb) {
unlock_user_struct(target_mb, msgp, 0);
return -TARGET_ENOMEM;
}
host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
memcpy(host_mb->mtext, target_mb->mtext, msgsz);
ret = -TARGET_ENOSYS;
#ifdef __NR_msgsnd
ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg));
#endif
#ifdef __NR_ipc
if (ret == -TARGET_ENOSYS) {
#ifdef __s390x__
ret = get_errno(safe_ipc(IPCOP_msgsnd, msqid, msgsz, msgflg,
host_mb));
#else
ret = get_errno(safe_ipc(IPCOP_msgsnd, msqid, msgsz, msgflg,
host_mb, 0));
#endif
}
#endif
g_free(host_mb);
unlock_user_struct(target_mb, msgp, 0);
return ret;
}
#ifdef __NR_ipc
#if defined(__sparc__)
#define MSGRCV_ARGS(__msgp, __msgtyp) __msgp, __msgtyp
#elif defined(__s390x__)
#define MSGRCV_ARGS(__msgp, __msgtyp) \
((long int[]){(long int)__msgp, __msgtyp})
#else
#define MSGRCV_ARGS(__msgp, __msgtyp) \
((long int[]){(long int)__msgp, __msgtyp}), 0
#endif
#endif
static inline abi_long do_msgrcv(int msqid, abi_long msgp,
ssize_t msgsz, abi_long msgtyp,
int msgflg)
{
struct target_msgbuf *target_mb;
char *target_mtext;
struct msgbuf *host_mb;
abi_long ret = 0;
if (msgsz < 0) {
return -TARGET_EINVAL;
}
if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
return -TARGET_EFAULT;
host_mb = g_try_malloc(msgsz + sizeof(long));
if (!host_mb) {
ret = -TARGET_ENOMEM;
goto end;
}
ret = -TARGET_ENOSYS;
#ifdef __NR_msgrcv
ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
#endif
#ifdef __NR_ipc
if (ret == -TARGET_ENOSYS) {
ret = get_errno(safe_ipc(IPCOP_CALL(1, IPCOP_msgrcv), msqid, msgsz,
msgflg, MSGRCV_ARGS(host_mb, msgtyp)));
}
#endif
if (ret > 0) {
abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
if (!target_mtext) {
ret = -TARGET_EFAULT;
goto end;
}
memcpy(target_mb->mtext, host_mb->mtext, ret);
unlock_user(target_mtext, target_mtext_addr, ret);
}
target_mb->mtype = tswapal(host_mb->mtype);
end:
if (target_mb)
unlock_user_struct(target_mb, msgp, 1);
g_free(host_mb);
return ret;
}
static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
abi_ulong target_addr)
{
struct target_shmid_ds *target_sd;
if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
return -TARGET_EFAULT;
if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
return -TARGET_EFAULT;
__get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
__get_user(host_sd->shm_atime, &target_sd->shm_atime);
__get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
__get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
__get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
__get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
__get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
unlock_user_struct(target_sd, target_addr, 0);
return 0;
}
static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
struct shmid_ds *host_sd)
{
struct target_shmid_ds *target_sd;
if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
return -TARGET_EFAULT;
if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
return -TARGET_EFAULT;
__put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
__put_user(host_sd->shm_atime, &target_sd->shm_atime);
__put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
__put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
__put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
__put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
__put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
unlock_user_struct(target_sd, target_addr, 1);
return 0;
}
struct target_shminfo {
abi_ulong shmmax;
abi_ulong shmmin;
abi_ulong shmmni;
abi_ulong shmseg;
abi_ulong shmall;
};
static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
struct shminfo *host_shminfo)
{
struct target_shminfo *target_shminfo;
if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
return -TARGET_EFAULT;
__put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
__put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
__put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
__put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
__put_user(host_shminfo->shmall, &target_shminfo->shmall);
unlock_user_struct(target_shminfo, target_addr, 1);
return 0;
}
struct target_shm_info {
int used_ids;
abi_ulong shm_tot;
abi_ulong shm_rss;
abi_ulong shm_swp;
abi_ulong swap_attempts;
abi_ulong swap_successes;
};
static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
struct shm_info *host_shm_info)
{
struct target_shm_info *target_shm_info;
if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
return -TARGET_EFAULT;
__put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
__put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
__put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
__put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
__put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
__put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
unlock_user_struct(target_shm_info, target_addr, 1);
return 0;
}
static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
{
struct shmid_ds dsarg;
struct shminfo shminfo;
struct shm_info shm_info;
abi_long ret = -TARGET_EINVAL;
cmd &= 0xff;
switch(cmd) {
case IPC_STAT:
case IPC_SET:
case SHM_STAT:
if (target_to_host_shmid_ds(&dsarg, buf))
return -TARGET_EFAULT;
ret = get_errno(shmctl(shmid, cmd, &dsarg));
if (host_to_target_shmid_ds(buf, &dsarg))
return -TARGET_EFAULT;
break;
case IPC_INFO:
ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
if (host_to_target_shminfo(buf, &shminfo))
return -TARGET_EFAULT;
break;
case SHM_INFO:
ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
if (host_to_target_shm_info(buf, &shm_info))
return -TARGET_EFAULT;
break;
case IPC_RMID:
case SHM_LOCK:
case SHM_UNLOCK:
ret = get_errno(shmctl(shmid, cmd, NULL));
break;
}
return ret;
}
#ifdef TARGET_NR_ipc
static abi_long do_ipc(CPUArchState *cpu_env,
unsigned int call, abi_long first,
abi_long second, abi_long third,
abi_long ptr, abi_long fifth)
{
int version;
abi_long ret = 0;
version = call >> 16;
call &= 0xffff;
switch (call) {
case IPCOP_semop:
ret = do_semtimedop(first, ptr, second, 0, false);
break;
case IPCOP_semtimedop:
* The s390 sys_ipc variant has only five parameters instead of six
* (as for default variant) and the only difference is the handling of
* SEMTIMEDOP where on s390 the third parameter is used as a pointer
* to a struct timespec where the generic variant uses fifth parameter.
*/
#if defined(TARGET_S390X)
ret = do_semtimedop(first, ptr, second, third, TARGET_ABI_BITS == 64);
#else
ret = do_semtimedop(first, ptr, second, fifth, TARGET_ABI_BITS == 64);
#endif
break;
case IPCOP_semget:
ret = get_errno(semget(first, second, third));
break;
case IPCOP_semctl: {
* ptr argument. */
abi_ulong atptr;
get_user_ual(atptr, ptr);
ret = do_semctl(first, second, third, atptr);
break;
}
case IPCOP_msgget:
ret = get_errno(msgget(first, second));
break;
case IPCOP_msgsnd:
ret = do_msgsnd(first, ptr, second, third);
break;
case IPCOP_msgctl:
ret = do_msgctl(first, second, ptr);
break;
case IPCOP_msgrcv:
switch (version) {
case 0:
{
struct target_ipc_kludge {
abi_long msgp;
abi_long msgtyp;
} *tmp;
if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
ret = -TARGET_EFAULT;
break;
}
ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
unlock_user_struct(tmp, ptr, 0);
break;
}
default:
ret = do_msgrcv(first, ptr, second, fifth, third);
}
break;
case IPCOP_shmat:
switch (version) {
default:
{
abi_ulong raddr;
raddr = target_shmat(cpu_env, first, ptr, second);
if (is_error(raddr))
return get_errno(raddr);
if (put_user_ual(raddr, third))
return -TARGET_EFAULT;
break;
}
case 1:
ret = -TARGET_EINVAL;
break;
}
break;
case IPCOP_shmdt:
ret = target_shmdt(ptr);
break;
case IPCOP_shmget:
ret = get_errno(shmget(first, second, third));
break;
case IPCOP_shmctl:
ret = do_shmctl(first, second, ptr);
break;
default:
qemu_log_mask(LOG_UNIMP, "Unsupported ipc call: %d (version %d)\n",
call, version);
ret = -TARGET_ENOSYS;
break;
}
return ret;
}
#endif
#define STRUCT(name, ...) STRUCT_ ## name,
#define STRUCT_SPECIAL(name) STRUCT_ ## name,
enum {
#include "syscall_types.h"
STRUCT_MAX
};
#undef STRUCT
#undef STRUCT_SPECIAL
#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
#define STRUCT_SPECIAL(name)
#include "syscall_types.h"
#undef STRUCT
#undef STRUCT_SPECIAL
#define MAX_STRUCT_SIZE 4096
#ifdef CONFIG_FIEMAP
* This is very slightly smaller than the limit imposed by
* the underlying kernel.
*/
#define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
/ sizeof(struct fiemap_extent))
static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
* by an array of struct fiemap_extent whose size is set
* in fiemap->fm_extent_count. The array is filled in by the
* ioctl.
*/
int target_size_in, target_size_out;
struct fiemap *fm;
const argtype *arg_type = ie->arg_type;
const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
void *argptr, *p;
abi_long ret;
int i, extent_size = thunk_type_size(extent_arg_type, 0);
uint32_t outbufsz;
int free_fm = 0;
assert(arg_type[0] == TYPE_PTR);
assert(ie->access == IOC_RW);
arg_type++;
target_size_in = thunk_type_size(arg_type, 0);
argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
if (!argptr) {
return -TARGET_EFAULT;
}
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
unlock_user(argptr, arg, 0);
fm = (struct fiemap *)buf_temp;
if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
return -TARGET_EINVAL;
}
outbufsz = sizeof (*fm) +
(sizeof(struct fiemap_extent) * fm->fm_extent_count);
if (outbufsz > MAX_STRUCT_SIZE) {
* Allocate one that is large enough and use it instead.
*/
fm = g_try_malloc(outbufsz);
if (!fm) {
return -TARGET_ENOMEM;
}
memcpy(fm, buf_temp, sizeof(struct fiemap));
free_fm = 1;
}
ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm));
if (!is_error(ret)) {
target_size_out = target_size_in;
* so there are no structs to copy
*/
if (fm->fm_extent_count != 0) {
target_size_out += fm->fm_mapped_extents * extent_size;
}
argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
if (!argptr) {
ret = -TARGET_EFAULT;
} else {
thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
if (fm->fm_extent_count != 0) {
p = argptr + target_size_in;
for (i = 0; i < fm->fm_mapped_extents; i++) {
thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
THUNK_TARGET);
p += extent_size;
}
}
unlock_user(argptr, arg, target_size_out);
}
}
if (free_fm) {
g_free(fm);
}
return ret;
}
#endif
static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
const argtype *arg_type = ie->arg_type;
int target_size;
void *argptr;
int ret;
struct ifconf *host_ifconf;
uint32_t outbufsz;
const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
const argtype ifreq_max_type[] = { MK_STRUCT(STRUCT_ifmap_ifreq) };
int target_ifreq_size;
int nb_ifreq;
int free_buf = 0;
int i;
int target_ifc_len;
abi_long target_ifc_buf;
int host_ifc_len;
char *host_ifc_buf;
assert(arg_type[0] == TYPE_PTR);
assert(ie->access == IOC_RW);
arg_type++;
target_size = thunk_type_size(arg_type, 0);
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
if (!argptr)
return -TARGET_EFAULT;
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
unlock_user(argptr, arg, 0);
host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
target_ifreq_size = thunk_type_size(ifreq_max_type, 0);
if (target_ifc_buf != 0) {
target_ifc_len = host_ifconf->ifc_len;
nb_ifreq = target_ifc_len / target_ifreq_size;
host_ifc_len = nb_ifreq * sizeof(struct ifreq);
outbufsz = sizeof(*host_ifconf) + host_ifc_len;
if (outbufsz > MAX_STRUCT_SIZE) {
* We can't fit all the extents into the fixed size buffer.
* Allocate one that is large enough and use it instead.
*/
host_ifconf = g_try_malloc(outbufsz);
if (!host_ifconf) {
return -TARGET_ENOMEM;
}
memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
free_buf = 1;
}
host_ifc_buf = (char *)host_ifconf + sizeof(*host_ifconf);
host_ifconf->ifc_len = host_ifc_len;
} else {
host_ifc_buf = NULL;
}
host_ifconf->ifc_buf = host_ifc_buf;
ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf));
if (!is_error(ret)) {
nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
target_ifc_len = nb_ifreq * target_ifreq_size;
host_ifconf->ifc_len = target_ifc_len;
host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
if (!argptr)
return -TARGET_EFAULT;
thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
unlock_user(argptr, arg, target_size);
if (target_ifc_buf != 0) {
argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
for (i = 0; i < nb_ifreq ; i++) {
thunk_convert(argptr + i * target_ifreq_size,
host_ifc_buf + i * sizeof(struct ifreq),
ifreq_arg_type, THUNK_TARGET);
}
unlock_user(argptr, target_ifc_buf, target_ifc_len);
}
}
if (free_buf) {
g_free(host_ifconf);
}
return ret;
}
#if defined(CONFIG_USBFS)
#if HOST_LONG_BITS > 64
#error USBDEVFS thunks do not support >64 bit hosts yet.
#endif
struct live_urb {
uint64_t target_urb_adr;
uint64_t target_buf_adr;
char *target_buf_ptr;
struct usbdevfs_urb host_urb;
};
static GHashTable *usbdevfs_urb_hashtable(void)
{
static GHashTable *urb_hashtable;
if (!urb_hashtable) {
urb_hashtable = g_hash_table_new(g_int64_hash, g_int64_equal);
}
return urb_hashtable;
}
static void urb_hashtable_insert(struct live_urb *urb)
{
GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
g_hash_table_insert(urb_hashtable, urb, urb);
}
static struct live_urb *urb_hashtable_lookup(uint64_t target_urb_adr)
{
GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
return g_hash_table_lookup(urb_hashtable, &target_urb_adr);
}
static void urb_hashtable_remove(struct live_urb *urb)
{
GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
g_hash_table_remove(urb_hashtable, urb);
}
static abi_long
do_ioctl_usbdevfs_reapurb(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
const argtype usbfsurb_arg_type[] = { MK_STRUCT(STRUCT_usbdevfs_urb) };
const argtype ptrvoid_arg_type[] = { TYPE_PTRVOID, 0, 0 };
struct live_urb *lurb;
void *argptr;
uint64_t hurb;
int target_size;
uintptr_t target_urb_adr;
abi_long ret;
target_size = thunk_type_size(usbfsurb_arg_type, THUNK_TARGET);
memset(buf_temp, 0, sizeof(uint64_t));
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
if (is_error(ret)) {
return ret;
}
memcpy(&hurb, buf_temp, sizeof(uint64_t));
lurb = (void *)((uintptr_t)hurb - offsetof(struct live_urb, host_urb));
if (!lurb->target_urb_adr) {
return -TARGET_EFAULT;
}
urb_hashtable_remove(lurb);
unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr,
lurb->host_urb.buffer_length);
lurb->target_buf_ptr = NULL;
lurb->host_urb.buffer = (void *)(uintptr_t)lurb->target_buf_adr;
argptr = lock_user(VERIFY_WRITE, lurb->target_urb_adr, target_size, 0);
if (!argptr) {
g_free(lurb);
return -TARGET_EFAULT;
}
thunk_convert(argptr, &lurb->host_urb, usbfsurb_arg_type, THUNK_TARGET);
unlock_user(argptr, lurb->target_urb_adr, target_size);
target_size = thunk_type_size(ptrvoid_arg_type, THUNK_TARGET);
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
if (!argptr) {
g_free(lurb);
return -TARGET_EFAULT;
}
target_urb_adr = lurb->target_urb_adr;
thunk_convert(argptr, &target_urb_adr, ptrvoid_arg_type, THUNK_TARGET);
unlock_user(argptr, arg, target_size);
g_free(lurb);
return ret;
}
static abi_long
do_ioctl_usbdevfs_discardurb(const IOCTLEntry *ie,
uint8_t *buf_temp __attribute__((unused)),
int fd, int cmd, abi_long arg)
{
struct live_urb *lurb;
lurb = urb_hashtable_lookup(arg);
if (!lurb) {
return -TARGET_EFAULT;
}
return get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
}
static abi_long
do_ioctl_usbdevfs_submiturb(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
const argtype *arg_type = ie->arg_type;
int target_size;
abi_long ret;
void *argptr;
int rw_dir;
struct live_urb *lurb;
* each submitted URB needs to map to a unique ID for the
* kernel, and that unique ID needs to be a pointer to
* host memory. hence, we need to malloc for each URB.
* isochronous transfers have a variable length struct.
*/
arg_type++;
target_size = thunk_type_size(arg_type, THUNK_TARGET);
lurb = g_try_new0(struct live_urb, 1);
if (!lurb) {
return -TARGET_ENOMEM;
}
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
if (!argptr) {
g_free(lurb);
return -TARGET_EFAULT;
}
thunk_convert(&lurb->host_urb, argptr, arg_type, THUNK_HOST);
unlock_user(argptr, arg, 0);
lurb->target_urb_adr = arg;
lurb->target_buf_adr = (uintptr_t)lurb->host_urb.buffer;
rw_dir = lurb->host_urb.endpoint & USB_DIR_IN ? VERIFY_WRITE : VERIFY_READ;
lurb->target_buf_ptr = lock_user(rw_dir, lurb->target_buf_adr,
lurb->host_urb.buffer_length, 1);
if (lurb->target_buf_ptr == NULL) {
g_free(lurb);
return -TARGET_EFAULT;
}
lurb->host_urb.buffer = lurb->target_buf_ptr;
ret = get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
if (is_error(ret)) {
unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, 0);
g_free(lurb);
} else {
urb_hashtable_insert(lurb);
}
return ret;
}
#endif
static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
int cmd, abi_long arg)
{
void *argptr;
struct dm_ioctl *host_dm;
abi_long guest_data;
uint32_t guest_data_size;
int target_size;
const argtype *arg_type = ie->arg_type;
abi_long ret;
void *big_buf = NULL;
char *host_data;
arg_type++;
target_size = thunk_type_size(arg_type, 0);
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
if (!argptr) {
ret = -TARGET_EFAULT;
goto out;
}
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
unlock_user(argptr, arg, 0);
big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
memcpy(big_buf, buf_temp, target_size);
buf_temp = big_buf;
host_dm = big_buf;
guest_data = arg + host_dm->data_start;
if ((guest_data - arg) < 0) {
ret = -TARGET_EINVAL;
goto out;
}
guest_data_size = host_dm->data_size - host_dm->data_start;
host_data = (char*)host_dm + host_dm->data_start;
argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
if (!argptr) {
ret = -TARGET_EFAULT;
goto out;
}
switch (ie->host_cmd) {
case DM_REMOVE_ALL:
case DM_LIST_DEVICES:
case DM_DEV_CREATE:
case DM_DEV_REMOVE:
case DM_DEV_SUSPEND:
case DM_DEV_STATUS:
case DM_DEV_WAIT:
case DM_TABLE_STATUS:
case DM_TABLE_CLEAR:
case DM_TABLE_DEPS:
case DM_LIST_VERSIONS:
break;
case DM_DEV_RENAME:
case DM_DEV_SET_GEOMETRY:
memcpy(host_data, argptr, guest_data_size);
break;
case DM_TARGET_MSG:
memcpy(host_data, argptr, guest_data_size);
*(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
break;
case DM_TABLE_LOAD:
{
void *gspec = argptr;
void *cur_data = host_data;
const argtype dm_arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
int spec_size = thunk_type_size(dm_arg_type, 0);
int i;
for (i = 0; i < host_dm->target_count; i++) {
struct dm_target_spec *spec = cur_data;
uint32_t next;
int slen;
thunk_convert(spec, gspec, dm_arg_type, THUNK_HOST);
slen = strlen((char*)gspec + spec_size) + 1;
next = spec->next;
spec->next = sizeof(*spec) + slen;
strcpy((char*)&spec[1], gspec + spec_size);
gspec += next;
cur_data += spec->next;
}
break;
}
default:
ret = -TARGET_EINVAL;
unlock_user(argptr, guest_data, 0);
goto out;
}
unlock_user(argptr, guest_data, 0);
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
if (!is_error(ret)) {
guest_data = arg + host_dm->data_start;
guest_data_size = host_dm->data_size - host_dm->data_start;
argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
switch (ie->host_cmd) {
case DM_REMOVE_ALL:
case DM_DEV_CREATE:
case DM_DEV_REMOVE:
case DM_DEV_RENAME:
case DM_DEV_SUSPEND:
case DM_DEV_STATUS:
case DM_TABLE_LOAD:
case DM_TABLE_CLEAR:
case DM_TARGET_MSG:
case DM_DEV_SET_GEOMETRY:
break;
case DM_LIST_DEVICES:
{
struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
uint32_t remaining_data = guest_data_size;
void *cur_data = argptr;
const argtype dm_arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
int nl_size = 12;
while (1) {
uint32_t next = nl->next;
if (next) {
nl->next = nl_size + (strlen(nl->name) + 1);
}
if (remaining_data < nl->next) {
host_dm->flags |= DM_BUFFER_FULL_FLAG;
break;
}
thunk_convert(cur_data, nl, dm_arg_type, THUNK_TARGET);
strcpy(cur_data + nl_size, nl->name);
cur_data += nl->next;
remaining_data -= nl->next;
if (!next) {
break;
}
nl = (void*)nl + next;
}
break;
}
case DM_DEV_WAIT:
case DM_TABLE_STATUS:
{
struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
void *cur_data = argptr;
const argtype dm_arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
int spec_size = thunk_type_size(dm_arg_type, 0);
int i;
for (i = 0; i < host_dm->target_count; i++) {
uint32_t next = spec->next;
int slen = strlen((char*)&spec[1]) + 1;
spec->next = (cur_data - argptr) + spec_size + slen;
if (guest_data_size < spec->next) {
host_dm->flags |= DM_BUFFER_FULL_FLAG;
break;
}
thunk_convert(cur_data, spec, dm_arg_type, THUNK_TARGET);
strcpy(cur_data + spec_size, (char*)&spec[1]);
cur_data = argptr + spec->next;
spec = (void*)host_dm + host_dm->data_start + next;
}
break;
}
case DM_TABLE_DEPS:
{
void *hdata = (void*)host_dm + host_dm->data_start;
int count = *(uint32_t*)hdata;
uint64_t *hdev = hdata + 8;
uint64_t *gdev = argptr + 8;
int i;
*(uint32_t*)argptr = tswap32(count);
for (i = 0; i < count; i++) {
*gdev = tswap64(*hdev);
gdev++;
hdev++;
}
break;
}
case DM_LIST_VERSIONS:
{
struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
uint32_t remaining_data = guest_data_size;
void *cur_data = argptr;
const argtype dm_arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
int vers_size = thunk_type_size(dm_arg_type, 0);
while (1) {
uint32_t next = vers->next;
if (next) {
vers->next = vers_size + (strlen(vers->name) + 1);
}
if (remaining_data < vers->next) {
host_dm->flags |= DM_BUFFER_FULL_FLAG;
break;
}
thunk_convert(cur_data, vers, dm_arg_type, THUNK_TARGET);
strcpy(cur_data + vers_size, vers->name);
cur_data += vers->next;
remaining_data -= vers->next;
if (!next) {
break;
}
vers = (void*)vers + next;
}
break;
}
default:
unlock_user(argptr, guest_data, 0);
ret = -TARGET_EINVAL;
goto out;
}
unlock_user(argptr, guest_data, guest_data_size);
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
if (!argptr) {
ret = -TARGET_EFAULT;
goto out;
}
thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
unlock_user(argptr, arg, target_size);
}
out:
g_free(big_buf);
return ret;
}
static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
int cmd, abi_long arg)
{
void *argptr;
int target_size;
const argtype *arg_type = ie->arg_type;
const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) };
abi_long ret;
struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp;
struct blkpg_partition host_part;
arg_type++;
target_size = thunk_type_size(arg_type, 0);
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
if (!argptr) {
ret = -TARGET_EFAULT;
goto out;
}
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
unlock_user(argptr, arg, 0);
switch (host_blkpg->op) {
case BLKPG_ADD_PARTITION:
case BLKPG_DEL_PARTITION:
break;
default:
ret = -TARGET_EINVAL;
goto out;
}
arg = (abi_long)(uintptr_t)host_blkpg->data;
target_size = thunk_type_size(part_arg_type, 0);
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
if (!argptr) {
ret = -TARGET_EFAULT;
goto out;
}
thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST);
unlock_user(argptr, arg, 0);
host_blkpg->data = &host_part;
ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg));
out:
return ret;
}
static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
const argtype *arg_type = ie->arg_type;
const StructEntry *se;
const argtype *field_types;
const int *dst_offsets, *src_offsets;
int target_size;
void *argptr;
abi_ulong *target_rt_dev_ptr = NULL;
unsigned long *host_rt_dev_ptr = NULL;
abi_long ret;
int i;
assert(ie->access == IOC_W);
assert(*arg_type == TYPE_PTR);
arg_type++;
assert(*arg_type == TYPE_STRUCT);
target_size = thunk_type_size(arg_type, 0);
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
if (!argptr) {
return -TARGET_EFAULT;
}
arg_type++;
assert(*arg_type == (int)STRUCT_rtentry);
se = struct_entries + *arg_type++;
assert(se->convert[0] == NULL);
field_types = se->field_types;
dst_offsets = se->field_offsets[THUNK_HOST];
src_offsets = se->field_offsets[THUNK_TARGET];
for (i = 0; i < se->nb_fields; i++) {
if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
assert(*field_types == TYPE_PTRVOID);
target_rt_dev_ptr = argptr + src_offsets[i];
host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
if (*target_rt_dev_ptr != 0) {
*host_rt_dev_ptr = (unsigned long)lock_user_string(
tswapal(*target_rt_dev_ptr));
if (!*host_rt_dev_ptr) {
unlock_user(argptr, arg, 0);
return -TARGET_EFAULT;
}
} else {
*host_rt_dev_ptr = 0;
}
field_types++;
continue;
}
field_types = thunk_convert(buf_temp + dst_offsets[i],
argptr + src_offsets[i],
field_types, THUNK_HOST);
}
unlock_user(argptr, arg, 0);
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
assert(host_rt_dev_ptr != NULL);
assert(target_rt_dev_ptr != NULL);
if (*host_rt_dev_ptr != 0) {
unlock_user((void *)*host_rt_dev_ptr,
*target_rt_dev_ptr, 0);
}
return ret;
}
static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
int sig = target_to_host_signal(arg);
return get_errno(safe_ioctl(fd, ie->host_cmd, sig));
}
static abi_long do_ioctl_SIOCGSTAMP(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
struct timeval tv;
abi_long ret;
ret = get_errno(safe_ioctl(fd, SIOCGSTAMP, &tv));
if (is_error(ret)) {
return ret;
}
if (cmd == (int)TARGET_SIOCGSTAMP_OLD) {
if (copy_to_user_timeval(arg, &tv)) {
return -TARGET_EFAULT;
}
} else {
if (copy_to_user_timeval64(arg, &tv)) {
return -TARGET_EFAULT;
}
}
return ret;
}
static abi_long do_ioctl_SIOCGSTAMPNS(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
struct timespec ts;
abi_long ret;
ret = get_errno(safe_ioctl(fd, SIOCGSTAMPNS, &ts));
if (is_error(ret)) {
return ret;
}
if (cmd == (int)TARGET_SIOCGSTAMPNS_OLD) {
if (host_to_target_timespec(arg, &ts)) {
return -TARGET_EFAULT;
}
} else{
if (host_to_target_timespec64(arg, &ts)) {
return -TARGET_EFAULT;
}
}
return ret;
}
#ifdef TIOCGPTPEER
static abi_long do_ioctl_tiocgptpeer(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
int flags = target_to_host_bitmask(arg, fcntl_flags_tbl);
return get_errno(safe_ioctl(fd, ie->host_cmd, flags));
}
#endif
#ifdef HAVE_DRM_H
static void unlock_drm_version(struct drm_version *host_ver,
struct target_drm_version *target_ver,
bool copy)
{
unlock_user(host_ver->name, target_ver->name,
copy ? host_ver->name_len : 0);
unlock_user(host_ver->date, target_ver->date,
copy ? host_ver->date_len : 0);
unlock_user(host_ver->desc, target_ver->desc,
copy ? host_ver->desc_len : 0);
}
static inline abi_long target_to_host_drmversion(struct drm_version *host_ver,
struct target_drm_version *target_ver)
{
memset(host_ver, 0, sizeof(*host_ver));
__get_user(host_ver->name_len, &target_ver->name_len);
if (host_ver->name_len) {
host_ver->name = lock_user(VERIFY_WRITE, target_ver->name,
target_ver->name_len, 0);
if (!host_ver->name) {
return -EFAULT;
}
}
__get_user(host_ver->date_len, &target_ver->date_len);
if (host_ver->date_len) {
host_ver->date = lock_user(VERIFY_WRITE, target_ver->date,
target_ver->date_len, 0);
if (!host_ver->date) {
goto err;
}
}
__get_user(host_ver->desc_len, &target_ver->desc_len);
if (host_ver->desc_len) {
host_ver->desc = lock_user(VERIFY_WRITE, target_ver->desc,
target_ver->desc_len, 0);
if (!host_ver->desc) {
goto err;
}
}
return 0;
err:
unlock_drm_version(host_ver, target_ver, false);
return -EFAULT;
}
static inline void host_to_target_drmversion(
struct target_drm_version *target_ver,
struct drm_version *host_ver)
{
__put_user(host_ver->version_major, &target_ver->version_major);
__put_user(host_ver->version_minor, &target_ver->version_minor);
__put_user(host_ver->version_patchlevel, &target_ver->version_patchlevel);
__put_user(host_ver->name_len, &target_ver->name_len);
__put_user(host_ver->date_len, &target_ver->date_len);
__put_user(host_ver->desc_len, &target_ver->desc_len);
unlock_drm_version(host_ver, target_ver, true);
}
static abi_long do_ioctl_drm(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
struct drm_version *ver;
struct target_drm_version *target_ver;
abi_long ret;
switch (ie->host_cmd) {
case DRM_IOCTL_VERSION:
if (!lock_user_struct(VERIFY_WRITE, target_ver, arg, 0)) {
return -TARGET_EFAULT;
}
ver = (struct drm_version *)buf_temp;
ret = target_to_host_drmversion(ver, target_ver);
if (!is_error(ret)) {
ret = get_errno(safe_ioctl(fd, ie->host_cmd, ver));
if (is_error(ret)) {
unlock_drm_version(ver, target_ver, false);
} else {
host_to_target_drmversion(target_ver, ver);
}
}
unlock_user_struct(target_ver, arg, 0);
return ret;
}
return -TARGET_ENOSYS;
}
static abi_long do_ioctl_drm_i915_getparam(const IOCTLEntry *ie,
struct drm_i915_getparam *gparam,
int fd, abi_long arg)
{
abi_long ret;
int value;
struct target_drm_i915_getparam *target_gparam;
if (!lock_user_struct(VERIFY_READ, target_gparam, arg, 0)) {
return -TARGET_EFAULT;
}
__get_user(gparam->param, &target_gparam->param);
gparam->value = &value;
ret = get_errno(safe_ioctl(fd, ie->host_cmd, gparam));
put_user_s32(value, target_gparam->value);
unlock_user_struct(target_gparam, arg, 0);
return ret;
}
static abi_long do_ioctl_drm_i915(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
switch (ie->host_cmd) {
case DRM_IOCTL_I915_GETPARAM:
return do_ioctl_drm_i915_getparam(ie,
(struct drm_i915_getparam *)buf_temp,
fd, arg);
default:
return -TARGET_ENOSYS;
}
}
#endif
static abi_long do_ioctl_TUNSETTXFILTER(const IOCTLEntry *ie, uint8_t *buf_temp,
int fd, int cmd, abi_long arg)
{
struct tun_filter *filter = (struct tun_filter *)buf_temp;
struct tun_filter *target_filter;
char *target_addr;
assert(ie->access == IOC_W);
target_filter = lock_user(VERIFY_READ, arg, sizeof(*target_filter), 1);
if (!target_filter) {
return -TARGET_EFAULT;
}
filter->flags = tswap16(target_filter->flags);
filter->count = tswap16(target_filter->count);
unlock_user(target_filter, arg, 0);
if (filter->count) {
if (offsetof(struct tun_filter, addr) + filter->count * ETH_ALEN >
MAX_STRUCT_SIZE) {
return -TARGET_EFAULT;
}
target_addr = lock_user(VERIFY_READ,
arg + offsetof(struct tun_filter, addr),
filter->count * ETH_ALEN, 1);
if (!target_addr) {
return -TARGET_EFAULT;
}
memcpy(filter->addr, target_addr, filter->count * ETH_ALEN);
unlock_user(target_addr, arg + offsetof(struct tun_filter, addr), 0);
}
return get_errno(safe_ioctl(fd, ie->host_cmd, filter));
}
IOCTLEntry ioctl_entries[] = {
#define IOCTL(cmd, access, ...) \
{ TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
{ TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
#define IOCTL_IGNORE(cmd) \
{ TARGET_ ## cmd, 0, #cmd },
#include "ioctls.h"
{ 0, 0, },
};
static abi_long do_ioctl(int fd, int cmd, abi_long arg)
{
const IOCTLEntry *ie;
const argtype *arg_type;
abi_long ret;
uint8_t buf_temp[MAX_STRUCT_SIZE];
int target_size;
void *argptr;
ie = ioctl_entries;
for(;;) {
if (ie->target_cmd == 0) {
qemu_log_mask(
LOG_UNIMP, "Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
return -TARGET_ENOTTY;
}
if (ie->target_cmd == cmd)
break;
ie++;
}
arg_type = ie->arg_type;
if (ie->do_ioctl) {
return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
} else if (!ie->host_cmd) {
that are not implemented in Linux. */
return -TARGET_ENOTTY;
}
switch(arg_type[0]) {
case TYPE_NULL:
ret = get_errno(safe_ioctl(fd, ie->host_cmd));
break;
case TYPE_PTRVOID:
case TYPE_INT:
case TYPE_LONG:
case TYPE_ULONG:
ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg));
break;
case TYPE_PTR:
arg_type++;
target_size = thunk_type_size(arg_type, 0);
switch(ie->access) {
case IOC_R:
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
if (!is_error(ret)) {
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
if (!argptr)
return -TARGET_EFAULT;
thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
unlock_user(argptr, arg, target_size);
}
break;
case IOC_W:
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
if (!argptr)
return -TARGET_EFAULT;
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
unlock_user(argptr, arg, 0);
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
break;
default:
case IOC_RW:
argptr = lock_user(VERIFY_READ, arg, target_size, 1);
if (!argptr)
return -TARGET_EFAULT;
thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
unlock_user(argptr, arg, 0);
ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
if (!is_error(ret)) {
argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
if (!argptr)
return -TARGET_EFAULT;
thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
unlock_user(argptr, arg, target_size);
}
break;
}
break;
default:
qemu_log_mask(LOG_UNIMP,
"Unsupported ioctl type: cmd=0x%04lx type=%d\n",
(long)cmd, arg_type[0]);
ret = -TARGET_ENOTTY;
break;
}
return ret;
}
static const bitmask_transtbl iflag_tbl[] = {
{ TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
{ TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
{ TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
{ TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
{ TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
{ TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
{ TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
{ TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
{ TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
{ TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
{ TARGET_IXON, TARGET_IXON, IXON, IXON },
{ TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
{ TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
{ TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
{ TARGET_IUTF8, TARGET_IUTF8, IUTF8, IUTF8},
};
static const bitmask_transtbl oflag_tbl[] = {
{ TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
{ TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
{ TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
{ TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
{ TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
{ TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
{ TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
{ TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
{ TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
{ TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
{ TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
{ TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
{ TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
{ TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
{ TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
{ TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
{ TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
{ TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
{ TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
{ TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
{ TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
{ TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
{ TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
{ TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
};
static const bitmask_transtbl cflag_tbl[] = {
{ TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
{ TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
{ TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
{ TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
{ TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
{ TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
{ TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
{ TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
{ TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
{ TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
{ TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
{ TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
{ TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
{ TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
{ TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
{ TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
{ TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
{ TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
{ TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
{ TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
{ TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
{ TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
{ TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
{ TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
{ TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
{ TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
{ TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
{ TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
{ TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
{ TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
{ TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
};
static const bitmask_transtbl lflag_tbl[] = {
{ TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
{ TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
{ TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
{ TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
{ TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
{ TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
{ TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
{ TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
{ TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
{ TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
{ TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
{ TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
{ TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
{ TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
{ TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
{ TARGET_EXTPROC, TARGET_EXTPROC, EXTPROC, EXTPROC},
};
static void target_to_host_termios (void *dst, const void *src)
{
struct host_termios *host = dst;
const struct target_termios *target = src;
host->c_iflag =
target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
host->c_oflag =
target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
host->c_cflag =
target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
host->c_lflag =
target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
host->c_line = target->c_line;
memset(host->c_cc, 0, sizeof(host->c_cc));
host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
}
static void host_to_target_termios (void *dst, const void *src)
{
struct target_termios *target = dst;
const struct host_termios *host = src;
target->c_iflag =
tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
target->c_oflag =
tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
target->c_cflag =
tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
target->c_lflag =
tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
target->c_line = host->c_line;
memset(target->c_cc, 0, sizeof(target->c_cc));
target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
}
static const StructEntry struct_termios_def = {
.convert = { host_to_target_termios, target_to_host_termios },
.size = { sizeof(struct target_termios), sizeof(struct host_termios) },
.align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
.print = print_termios,
};
#ifndef MAP_SYNC
#define MAP_SYNC 0
#endif
#ifndef MAP_UNINITIALIZED
#define MAP_UNINITIALIZED 0
#endif
static const bitmask_transtbl mmap_flags_tbl[] = {
{ TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
{ TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS,
MAP_ANONYMOUS, MAP_ANONYMOUS },
{ TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN,
MAP_GROWSDOWN, MAP_GROWSDOWN },
{ TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE,
MAP_DENYWRITE, MAP_DENYWRITE },
{ TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE,
MAP_EXECUTABLE, MAP_EXECUTABLE },
{ TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
{ TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE,
MAP_NORESERVE, MAP_NORESERVE },
{ TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB },
Recognize it for the target insofar as we do not want to pass
it through to the host. */
{ TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 },
{ TARGET_MAP_NONBLOCK, TARGET_MAP_NONBLOCK, MAP_NONBLOCK, MAP_NONBLOCK },
{ TARGET_MAP_POPULATE, TARGET_MAP_POPULATE, MAP_POPULATE, MAP_POPULATE },
{ TARGET_MAP_FIXED_NOREPLACE, TARGET_MAP_FIXED_NOREPLACE,
MAP_FIXED_NOREPLACE, MAP_FIXED_NOREPLACE },
{ TARGET_MAP_UNINITIALIZED, TARGET_MAP_UNINITIALIZED,
MAP_UNINITIALIZED, MAP_UNINITIALIZED },
};
* Arrange for legacy / undefined architecture specific flags to be
* ignored by mmap handling code.
*/
#ifndef TARGET_MAP_32BIT
#define TARGET_MAP_32BIT 0
#endif
#ifndef TARGET_MAP_HUGE_2MB
#define TARGET_MAP_HUGE_2MB 0
#endif
#ifndef TARGET_MAP_HUGE_1GB
#define TARGET_MAP_HUGE_1GB 0
#endif
static abi_long do_mmap(abi_ulong addr, abi_ulong len, int prot,
int target_flags, int fd, off_t offset)
{
* The historical set of flags that all mmap types implicitly support.
*/
enum {
TARGET_LEGACY_MAP_MASK = TARGET_MAP_SHARED
| TARGET_MAP_PRIVATE
| TARGET_MAP_FIXED
| TARGET_MAP_ANONYMOUS
| TARGET_MAP_DENYWRITE
| TARGET_MAP_EXECUTABLE
| TARGET_MAP_UNINITIALIZED
| TARGET_MAP_GROWSDOWN
| TARGET_MAP_LOCKED
| TARGET_MAP_NORESERVE
| TARGET_MAP_POPULATE
| TARGET_MAP_NONBLOCK
| TARGET_MAP_STACK
| TARGET_MAP_HUGETLB
| TARGET_MAP_32BIT
| TARGET_MAP_HUGE_2MB
| TARGET_MAP_HUGE_1GB
};
int host_flags;
switch (target_flags & TARGET_MAP_TYPE) {
case TARGET_MAP_PRIVATE:
host_flags = MAP_PRIVATE;
break;
case TARGET_MAP_SHARED:
host_flags = MAP_SHARED;
break;
case TARGET_MAP_SHARED_VALIDATE:
* MAP_SYNC is only supported for MAP_SHARED_VALIDATE, and is
* therefore omitted from mmap_flags_tbl and TARGET_LEGACY_MAP_MASK.
*/
if (target_flags & ~(TARGET_LEGACY_MAP_MASK | TARGET_MAP_SYNC)) {
return -TARGET_EOPNOTSUPP;
}
host_flags = MAP_SHARED_VALIDATE;
if (target_flags & TARGET_MAP_SYNC) {
host_flags |= MAP_SYNC;
}
break;
default:
return -TARGET_EINVAL;
}
host_flags |= target_to_host_bitmask(target_flags, mmap_flags_tbl);
return get_errno(target_mmap(addr, len, prot, host_flags, fd, offset));
}
* NOTE: TARGET_ABI32 is defined for TARGET_I386 (but not for TARGET_X86_64)
* TARGET_I386 is defined if TARGET_X86_64 is defined
*/
#if defined(TARGET_I386)
static uint8_t *ldt_table;
static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
{
int size;
void *p;
if (!ldt_table)
return 0;
size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
if (size > bytecount)
size = bytecount;
p = lock_user(VERIFY_WRITE, ptr, size, 0);
if (!p)
return -TARGET_EFAULT;
memcpy(p, ldt_table, size);
unlock_user(p, ptr, size);
return size;
}
static abi_long write_ldt(CPUX86State *env,
abi_ulong ptr, unsigned long bytecount, int oldmode)
{
struct target_modify_ldt_ldt_s ldt_info;
struct target_modify_ldt_ldt_s *target_ldt_info;
int seg_32bit, contents, read_exec_only, limit_in_pages;
int seg_not_present, useable, lm;
uint32_t *lp, entry_1, entry_2;
if (bytecount != sizeof(ldt_info))
return -TARGET_EINVAL;
if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
return -TARGET_EFAULT;
ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
ldt_info.limit = tswap32(target_ldt_info->limit);
ldt_info.flags = tswap32(target_ldt_info->flags);
unlock_user_struct(target_ldt_info, ptr, 0);
if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
return -TARGET_EINVAL;
seg_32bit = ldt_info.flags & 1;
contents = (ldt_info.flags >> 1) & 3;
read_exec_only = (ldt_info.flags >> 3) & 1;
limit_in_pages = (ldt_info.flags >> 4) & 1;
seg_not_present = (ldt_info.flags >> 5) & 1;
useable = (ldt_info.flags >> 6) & 1;
#ifdef TARGET_ABI32
lm = 0;
#else
lm = (ldt_info.flags >> 7) & 1;
#endif
if (contents == 3) {
if (oldmode)
return -TARGET_EINVAL;
if (seg_not_present == 0)
return -TARGET_EINVAL;
}
if (!ldt_table) {
env->ldt.base = target_mmap(0,
TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
PROT_READ|PROT_WRITE,
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
if (env->ldt.base == -1)
return -TARGET_ENOMEM;
memset(g2h_untagged(env->ldt.base), 0,
TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
env->ldt.limit = 0xffff;
ldt_table = g2h_untagged(env->ldt.base);
}
if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
if (oldmode ||
(contents == 0 &&
read_exec_only == 1 &&
seg_32bit == 0 &&
limit_in_pages == 0 &&
seg_not_present == 1 &&
useable == 0 )) {
entry_1 = 0;
entry_2 = 0;
goto install;
}
}
entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
(ldt_info.limit & 0x0ffff);
entry_2 = (ldt_info.base_addr & 0xff000000) |
((ldt_info.base_addr & 0x00ff0000) >> 16) |
(ldt_info.limit & 0xf0000) |
((read_exec_only ^ 1) << 9) |
(contents << 10) |
((seg_not_present ^ 1) << 15) |
(seg_32bit << 22) |
(limit_in_pages << 23) |
(lm << 21) |
0x7000;
if (!oldmode)
entry_2 |= (useable << 20);
install:
lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
lp[0] = tswap32(entry_1);
lp[1] = tswap32(entry_2);
return 0;
}
static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
unsigned long bytecount)
{
abi_long ret;
switch (func) {
case 0:
ret = read_ldt(ptr, bytecount);
break;
case 1:
ret = write_ldt(env, ptr, bytecount, 1);
break;
case 0x11:
ret = write_ldt(env, ptr, bytecount, 0);
break;
default:
ret = -TARGET_ENOSYS;
break;
}
return ret;
}
#if defined(TARGET_ABI32)
abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
{
uint64_t *gdt_table = g2h_untagged(env->gdt.base);
struct target_modify_ldt_ldt_s ldt_info;
struct target_modify_ldt_ldt_s *target_ldt_info;
int seg_32bit, contents, read_exec_only, limit_in_pages;
int seg_not_present, useable, lm;
uint32_t *lp, entry_1, entry_2;
int i;
lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
if (!target_ldt_info)
return -TARGET_EFAULT;
ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
ldt_info.limit = tswap32(target_ldt_info->limit);
ldt_info.flags = tswap32(target_ldt_info->flags);
if (ldt_info.entry_number == -1) {
for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
if (gdt_table[i] == 0) {
ldt_info.entry_number = i;
target_ldt_info->entry_number = tswap32(i);
break;
}
}
}
unlock_user_struct(target_ldt_info, ptr, 1);
if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
return -TARGET_EINVAL;
seg_32bit = ldt_info.flags & 1;
contents = (ldt_info.flags >> 1) & 3;
read_exec_only = (ldt_info.flags >> 3) & 1;
limit_in_pages = (ldt_info.flags >> 4) & 1;
seg_not_present = (ldt_info.flags >> 5) & 1;
useable = (ldt_info.flags >> 6) & 1;
#ifdef TARGET_ABI32
lm = 0;
#else
lm = (ldt_info.flags >> 7) & 1;
#endif
if (contents == 3) {
if (seg_not_present == 0)
return -TARGET_EINVAL;
}
if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
if ((contents == 0 &&
read_exec_only == 1 &&
seg_32bit == 0 &&
limit_in_pages == 0 &&
seg_not_present == 1 &&
useable == 0 )) {
entry_1 = 0;
entry_2 = 0;
goto install;
}
}
entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
(ldt_info.limit & 0x0ffff);
entry_2 = (ldt_info.base_addr & 0xff000000) |
((ldt_info.base_addr & 0x00ff0000) >> 16) |
(ldt_info.limit & 0xf0000) |
((read_exec_only ^ 1) << 9) |
(contents << 10) |
((seg_not_present ^ 1) << 15) |
(seg_32bit << 22) |
(limit_in_pages << 23) |
(useable << 20) |
(lm << 21) |
0x7000;
install:
lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
lp[0] = tswap32(entry_1);
lp[1] = tswap32(entry_2);
return 0;
}
static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
{
struct target_modify_ldt_ldt_s *target_ldt_info;
uint64_t *gdt_table = g2h_untagged(env->gdt.base);
uint32_t base_addr, limit, flags;
int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
int seg_not_present, useable, lm;
uint32_t *lp, entry_1, entry_2;
lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
if (!target_ldt_info)
return -TARGET_EFAULT;
idx = tswap32(target_ldt_info->entry_number);
if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
idx > TARGET_GDT_ENTRY_TLS_MAX) {
unlock_user_struct(target_ldt_info, ptr, 1);
return -TARGET_EINVAL;
}
lp = (uint32_t *)(gdt_table + idx);
entry_1 = tswap32(lp[0]);
entry_2 = tswap32(lp[1]);
read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
contents = (entry_2 >> 10) & 3;
seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
seg_32bit = (entry_2 >> 22) & 1;
limit_in_pages = (entry_2 >> 23) & 1;
useable = (entry_2 >> 20) & 1;
#ifdef TARGET_ABI32
lm = 0;
#else
lm = (entry_2 >> 21) & 1;
#endif
flags = (seg_32bit << 0) | (contents << 1) |
(read_exec_only << 3) | (limit_in_pages << 4) |
(seg_not_present << 5) | (useable << 6) | (lm << 7);
limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
base_addr = (entry_1 >> 16) |
(entry_2 & 0xff000000) |
((entry_2 & 0xff) << 16);
target_ldt_info->base_addr = tswapal(base_addr);
target_ldt_info->limit = tswap32(limit);
target_ldt_info->flags = tswap32(flags);
unlock_user_struct(target_ldt_info, ptr, 1);
return 0;
}
abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
{
return -TARGET_ENOSYS;
}
#else
abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
{
abi_long ret = 0;
abi_ulong val;
int idx;
switch(code) {
case TARGET_ARCH_SET_GS:
case TARGET_ARCH_SET_FS:
if (code == TARGET_ARCH_SET_GS)
idx = R_GS;
else
idx = R_FS;
cpu_x86_load_seg(env, idx, 0);
env->segs[idx].base = addr;
break;
case TARGET_ARCH_GET_GS:
case TARGET_ARCH_GET_FS:
if (code == TARGET_ARCH_GET_GS)
idx = R_GS;
else
idx = R_FS;
val = env->segs[idx].base;
if (put_user(val, addr, abi_ulong))
ret = -TARGET_EFAULT;
break;
default:
ret = -TARGET_EINVAL;
break;
}
return ret;
}
#endif
#endif
* These constants are generic. Supply any that are missing from the host.
*/
#ifndef PR_SET_NAME
# define PR_SET_NAME 15
# define PR_GET_NAME 16
#endif
#ifndef PR_SET_FP_MODE
# define PR_SET_FP_MODE 45
# define PR_GET_FP_MODE 46
# define PR_FP_MODE_FR (1 << 0)
# define PR_FP_MODE_FRE (1 << 1)
#endif
#ifndef PR_SVE_SET_VL
# define PR_SVE_SET_VL 50
# define PR_SVE_GET_VL 51
# define PR_SVE_VL_LEN_MASK 0xffff
# define PR_SVE_VL_INHERIT (1 << 17)
#endif
#ifndef PR_PAC_RESET_KEYS
# define PR_PAC_RESET_KEYS 54
# define PR_PAC_APIAKEY (1 << 0)
# define PR_PAC_APIBKEY (1 << 1)
# define PR_PAC_APDAKEY (1 << 2)
# define PR_PAC_APDBKEY (1 << 3)
# define PR_PAC_APGAKEY (1 << 4)
#endif
#ifndef PR_SET_TAGGED_ADDR_CTRL
# define PR_SET_TAGGED_ADDR_CTRL 55
# define PR_GET_TAGGED_ADDR_CTRL 56
# define PR_TAGGED_ADDR_ENABLE (1UL << 0)
#endif
#ifndef PR_MTE_TCF_SHIFT
# define PR_MTE_TCF_SHIFT 1
# define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT)
# define PR_MTE_TCF_SYNC (1UL << PR_MTE_TCF_SHIFT)
# define PR_MTE_TCF_ASYNC (2UL << PR_MTE_TCF_SHIFT)
# define PR_MTE_TCF_MASK (3UL << PR_MTE_TCF_SHIFT)
# define PR_MTE_TAG_SHIFT 3
# define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT)
#endif
#ifndef PR_SET_IO_FLUSHER
# define PR_SET_IO_FLUSHER 57
# define PR_GET_IO_FLUSHER 58
#endif
#ifndef PR_SET_SYSCALL_USER_DISPATCH
# define PR_SET_SYSCALL_USER_DISPATCH 59
#endif
#ifndef PR_SME_SET_VL
# define PR_SME_SET_VL 63
# define PR_SME_GET_VL 64
# define PR_SME_VL_LEN_MASK 0xffff
# define PR_SME_VL_INHERIT (1 << 17)
#endif
#include "target_prctl.h"
static abi_long do_prctl_inval0(CPUArchState *env)
{
return -TARGET_EINVAL;
}
static abi_long do_prctl_inval1(CPUArchState *env, abi_long arg2)
{
return -TARGET_EINVAL;
}
#ifndef do_prctl_get_fp_mode
#define do_prctl_get_fp_mode do_prctl_inval0
#endif
#ifndef do_prctl_set_fp_mode
#define do_prctl_set_fp_mode do_prctl_inval1
#endif
#ifndef do_prctl_sve_get_vl
#define do_prctl_sve_get_vl do_prctl_inval0
#endif
#ifndef do_prctl_sve_set_vl
#define do_prctl_sve_set_vl do_prctl_inval1
#endif
#ifndef do_prctl_reset_keys
#define do_prctl_reset_keys do_prctl_inval1
#endif
#ifndef do_prctl_set_tagged_addr_ctrl
#define do_prctl_set_tagged_addr_ctrl do_prctl_inval1
#endif
#ifndef do_prctl_get_tagged_addr_ctrl
#define do_prctl_get_tagged_addr_ctrl do_prctl_inval0
#endif
#ifndef do_prctl_get_unalign
#define do_prctl_get_unalign do_prctl_inval1
#endif
#ifndef do_prctl_set_unalign
#define do_prctl_set_unalign do_prctl_inval1
#endif
#ifndef do_prctl_sme_get_vl
#define do_prctl_sme_get_vl do_prctl_inval0
#endif
#ifndef do_prctl_sme_set_vl
#define do_prctl_sme_set_vl do_prctl_inval1
#endif
static abi_long do_prctl(CPUArchState *env, abi_long option, abi_long arg2,
abi_long arg3, abi_long arg4, abi_long arg5)
{
abi_long ret;
switch (option) {
case PR_GET_PDEATHSIG:
{
int deathsig;
ret = get_errno(prctl(PR_GET_PDEATHSIG, &deathsig,
arg3, arg4, arg5));
if (!is_error(ret) &&
put_user_s32(host_to_target_signal(deathsig), arg2)) {
return -TARGET_EFAULT;
}
return ret;
}
case PR_SET_PDEATHSIG:
return get_errno(prctl(PR_SET_PDEATHSIG, target_to_host_signal(arg2),
arg3, arg4, arg5));
case PR_GET_NAME:
{
void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
if (!name) {
return -TARGET_EFAULT;
}
ret = get_errno(prctl(PR_GET_NAME, (uintptr_t)name,
arg3, arg4, arg5));
unlock_user(name, arg2, 16);
return ret;
}
case PR_SET_NAME:
{
void *name = lock_user(VERIFY_READ, arg2, 16, 1);
if (!name) {
return -TARGET_EFAULT;
}
ret = get_errno(prctl(PR_SET_NAME, (uintptr_t)name,
arg3, arg4, arg5));
unlock_user(name, arg2, 0);
return ret;
}
case PR_GET_FP_MODE:
return do_prctl_get_fp_mode(env);
case PR_SET_FP_MODE:
return do_prctl_set_fp_mode(env, arg2);
case PR_SVE_GET_VL:
return do_prctl_sve_get_vl(env);
case PR_SVE_SET_VL:
return do_prctl_sve_set_vl(env, arg2);
case PR_SME_GET_VL:
return do_prctl_sme_get_vl(env);
case PR_SME_SET_VL:
return do_prctl_sme_set_vl(env, arg2);
case PR_PAC_RESET_KEYS:
if (arg3 || arg4 || arg5) {
return -TARGET_EINVAL;
}
return do_prctl_reset_keys(env, arg2);
case PR_SET_TAGGED_ADDR_CTRL:
if (arg3 || arg4 || arg5) {
return -TARGET_EINVAL;
}
return do_prctl_set_tagged_addr_ctrl(env, arg2);
case PR_GET_TAGGED_ADDR_CTRL:
if (arg2 || arg3 || arg4 || arg5) {
return -TARGET_EINVAL;
}
return do_prctl_get_tagged_addr_ctrl(env);
case PR_GET_UNALIGN:
return do_prctl_get_unalign(env, arg2);
case PR_SET_UNALIGN:
return do_prctl_set_unalign(env, arg2);
case PR_CAP_AMBIENT:
case PR_CAPBSET_READ:
case PR_CAPBSET_DROP:
case PR_GET_DUMPABLE:
case PR_SET_DUMPABLE:
case PR_GET_KEEPCAPS:
case PR_SET_KEEPCAPS:
case PR_GET_SECUREBITS:
case PR_SET_SECUREBITS:
case PR_GET_TIMING:
case PR_SET_TIMING:
case PR_GET_TIMERSLACK:
case PR_SET_TIMERSLACK:
case PR_MCE_KILL:
case PR_MCE_KILL_GET:
case PR_GET_NO_NEW_PRIVS:
case PR_SET_NO_NEW_PRIVS:
case PR_GET_IO_FLUSHER:
case PR_SET_IO_FLUSHER:
return get_errno(prctl(option, arg2, arg3, arg4, arg5));
case PR_GET_CHILD_SUBREAPER:
case PR_SET_CHILD_SUBREAPER:
case PR_GET_SPECULATION_CTRL:
case PR_SET_SPECULATION_CTRL:
case PR_GET_TID_ADDRESS:
return -TARGET_EINVAL;
case PR_GET_FPEXC:
case PR_SET_FPEXC:
return -TARGET_EINVAL;
case PR_GET_ENDIAN:
case PR_SET_ENDIAN:
case PR_GET_FPEMU:
case PR_SET_FPEMU:
case PR_SET_MM:
case PR_GET_SECCOMP:
case PR_SET_SECCOMP:
case PR_SET_SYSCALL_USER_DISPATCH:
case PR_GET_THP_DISABLE:
case PR_SET_THP_DISABLE:
case PR_GET_TSC:
case PR_SET_TSC:
return -TARGET_EINVAL;
default:
qemu_log_mask(LOG_UNIMP, "Unsupported prctl: " TARGET_ABI_FMT_ld "\n",
option);
return -TARGET_EINVAL;
}
}
#define NEW_STACK_SIZE 0x40000
static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
typedef struct {
CPUArchState *env;
pthread_mutex_t mutex;
pthread_cond_t cond;
pthread_t thread;
uint32_t tid;
abi_ulong child_tidptr;
abi_ulong parent_tidptr;
sigset_t sigmask;
} new_thread_info;
static void *clone_func(void *arg)
{
new_thread_info *info = arg;
CPUArchState *env;
CPUState *cpu;
TaskState *ts;
rcu_register_thread();
tcg_register_thread();
env = info->env;
cpu = env_cpu(env);
thread_cpu = cpu;
ts = (TaskState *)cpu->opaque;
info->tid = sys_gettid();
task_settid(ts);
if (info->child_tidptr)
put_user_u32(info->tid, info->child_tidptr);
if (info->parent_tidptr)
put_user_u32(info->tid, info->parent_tidptr);
qemu_guest_random_seed_thread_part2(cpu->random_seed);
sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
pthread_mutex_lock(&info->mutex);
pthread_cond_broadcast(&info->cond);
pthread_mutex_unlock(&info->mutex);
pthread_mutex_lock(&clone_lock);
pthread_mutex_unlock(&clone_lock);
cpu_loop(env);
return NULL;
}
do_*() functions). */
static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
abi_ulong parent_tidptr, target_ulong newtls,
abi_ulong child_tidptr)
{
CPUState *cpu = env_cpu(env);
int ret;
TaskState *ts;
CPUState *new_cpu;
CPUArchState *new_env;
sigset_t sigmask;
flags &= ~CLONE_IGNORED_FLAGS;
if (flags & CLONE_VFORK)
flags &= ~(CLONE_VFORK | CLONE_VM);
if (flags & CLONE_VM) {
TaskState *parent_ts = (TaskState *)cpu->opaque;
new_thread_info info;
pthread_attr_t attr;
if (((flags & CLONE_THREAD_FLAGS) != CLONE_THREAD_FLAGS) ||
(flags & CLONE_INVALID_THREAD_FLAGS)) {
return -TARGET_EINVAL;
}
ts = g_new0(TaskState, 1);
init_task_state(ts);
pthread_mutex_lock(&clone_lock);
* If this is our first additional thread, we need to ensure we
* generate code for parallel execution and flush old translations.
* Do this now so that the copy gets CF_PARALLEL too.
*/
if (!(cpu->tcg_cflags & CF_PARALLEL)) {
cpu->tcg_cflags |= CF_PARALLEL;
tb_flush(cpu);
}
new_env = cpu_copy(env);
cpu_clone_regs_child(new_env, newsp, flags);
cpu_clone_regs_parent(env, flags);
new_cpu = env_cpu(new_env);
new_cpu->opaque = ts;
ts->bprm = parent_ts->bprm;
ts->info = parent_ts->info;
ts->signal_mask = parent_ts->signal_mask;
if (flags & CLONE_CHILD_CLEARTID) {
ts->child_tidptr = child_tidptr;
}
if (flags & CLONE_SETTLS) {
cpu_set_tls (new_env, newtls);
}
memset(&info, 0, sizeof(info));
pthread_mutex_init(&info.mutex, NULL);
pthread_mutex_lock(&info.mutex);
pthread_cond_init(&info.cond, NULL);
info.env = new_env;
if (flags & CLONE_CHILD_SETTID) {
info.child_tidptr = child_tidptr;
}
if (flags & CLONE_PARENT_SETTID) {
info.parent_tidptr = parent_tidptr;
}
ret = pthread_attr_init(&attr);
ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
initializing, so temporarily block all signals. */
sigfillset(&sigmask);
sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
cpu->random_seed = qemu_guest_random_seed_thread_part1();
ret = pthread_create(&info.thread, &attr, clone_func, &info);
sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
pthread_attr_destroy(&attr);
if (ret == 0) {
pthread_cond_wait(&info.cond, &info.mutex);
ret = info.tid;
} else {
ret = -1;
}
pthread_mutex_unlock(&info.mutex);
pthread_cond_destroy(&info.cond);
pthread_mutex_destroy(&info.mutex);
pthread_mutex_unlock(&clone_lock);
} else {
if (flags & CLONE_INVALID_FORK_FLAGS) {
return -TARGET_EINVAL;
}
if ((flags & CSIGNAL) != TARGET_SIGCHLD) {
return -TARGET_EINVAL;
}
#if !defined(__NR_pidfd_open) || !defined(TARGET_NR_pidfd_open)
if (flags & CLONE_PIDFD) {
return -TARGET_EINVAL;
}
#endif
if ((flags & CLONE_PIDFD) && (flags & CLONE_PARENT_SETTID)) {
return -TARGET_EINVAL;
}
if (block_signals()) {
return -QEMU_ERESTARTSYS;
}
fork_start();
ret = fork();
if (ret == 0) {
cpu_clone_regs_child(env, newsp, flags);
fork_end(1);
theoretically read the TID in the child process before the child
tid is set. This would require using either ptrace
(not implemented) or having *_tidptr to point at a shared memory
mapping. We can't repeat the spinlock hack used above because
the child process gets its own copy of the lock. */
if (flags & CLONE_CHILD_SETTID)
put_user_u32(sys_gettid(), child_tidptr);
if (flags & CLONE_PARENT_SETTID)
put_user_u32(sys_gettid(), parent_tidptr);
ts = (TaskState *)cpu->opaque;
if (flags & CLONE_SETTLS)
cpu_set_tls (env, newtls);
if (flags & CLONE_CHILD_CLEARTID)
ts->child_tidptr = child_tidptr;
} else {
cpu_clone_regs_parent(env, flags);
if (flags & CLONE_PIDFD) {
int pid_fd = 0;
#if defined(__NR_pidfd_open) && defined(TARGET_NR_pidfd_open)
int pid_child = ret;
pid_fd = pidfd_open(pid_child, 0);
if (pid_fd >= 0) {
fcntl(pid_fd, F_SETFD, fcntl(pid_fd, F_GETFL)
| FD_CLOEXEC);
} else {
pid_fd = 0;
}
#endif
put_user_u32(pid_fd, parent_tidptr);
}
fork_end(0);
}
g_assert(!cpu_in_exclusive_context(cpu));
}
return ret;
}
static int target_to_host_fcntl_cmd(int cmd)
{
int ret;
switch(cmd) {
case TARGET_F_DUPFD:
case TARGET_F_GETFD:
case TARGET_F_SETFD:
case TARGET_F_GETFL:
case TARGET_F_SETFL:
case TARGET_F_OFD_GETLK:
case TARGET_F_OFD_SETLK:
case TARGET_F_OFD_SETLKW:
ret = cmd;
break;
case TARGET_F_GETLK:
ret = F_GETLK64;
break;
case TARGET_F_SETLK:
ret = F_SETLK64;
break;
case TARGET_F_SETLKW:
ret = F_SETLKW64;
break;
case TARGET_F_GETOWN:
ret = F_GETOWN;
break;
case TARGET_F_SETOWN:
ret = F_SETOWN;
break;
case TARGET_F_GETSIG:
ret = F_GETSIG;
break;
case TARGET_F_SETSIG:
ret = F_SETSIG;
break;
#if TARGET_ABI_BITS == 32
case TARGET_F_GETLK64:
ret = F_GETLK64;
break;
case TARGET_F_SETLK64:
ret = F_SETLK64;
break;
case TARGET_F_SETLKW64:
ret = F_SETLKW64;
break;
#endif
case TARGET_F_SETLEASE:
ret = F_SETLEASE;
break;
case TARGET_F_GETLEASE:
ret = F_GETLEASE;
break;
#ifdef F_DUPFD_CLOEXEC
case TARGET_F_DUPFD_CLOEXEC:
ret = F_DUPFD_CLOEXEC;
break;
#endif
case TARGET_F_NOTIFY:
ret = F_NOTIFY;
break;
#ifdef F_GETOWN_EX
case TARGET_F_GETOWN_EX:
ret = F_GETOWN_EX;
break;
#endif
#ifdef F_SETOWN_EX
case TARGET_F_SETOWN_EX:
ret = F_SETOWN_EX;
break;
#endif
#ifdef F_SETPIPE_SZ
case TARGET_F_SETPIPE_SZ:
ret = F_SETPIPE_SZ;
break;
case TARGET_F_GETPIPE_SZ:
ret = F_GETPIPE_SZ;
break;
#endif
#ifdef F_ADD_SEALS
case TARGET_F_ADD_SEALS:
ret = F_ADD_SEALS;
break;
case TARGET_F_GET_SEALS:
ret = F_GET_SEALS;
break;
#endif
default:
ret = -TARGET_EINVAL;
break;
}
#if defined(__powerpc64__)
* is not supported by kernel. The glibc fcntl call actually adjusts
* them to 5, 6 and 7 before making the syscall(). Since we make the
* syscall directly, adjust to what is supported by the kernel.
*/
if (ret >= F_GETLK64 && ret <= F_SETLKW64) {
ret -= F_GETLK64 - 5;
}
#endif
return ret;
}
#define FLOCK_TRANSTBL \
switch (type) { \
TRANSTBL_CONVERT(F_RDLCK); \
TRANSTBL_CONVERT(F_WRLCK); \
TRANSTBL_CONVERT(F_UNLCK); \
}
static int target_to_host_flock(int type)
{
#define TRANSTBL_CONVERT(a) case TARGET_##a: return a
FLOCK_TRANSTBL
#undef TRANSTBL_CONVERT
return -TARGET_EINVAL;
}
static int host_to_target_flock(int type)
{
#define TRANSTBL_CONVERT(a) case a: return TARGET_##a
FLOCK_TRANSTBL
#undef TRANSTBL_CONVERT
* from the host we copy to the target field as-is
*/
return type;
}
static inline abi_long copy_from_user_flock(struct flock64 *fl,
abi_ulong target_flock_addr)
{
struct target_flock *target_fl;
int l_type;
if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
return -TARGET_EFAULT;
}
__get_user(l_type, &target_fl->l_type);
l_type = target_to_host_flock(l_type);
if (l_type < 0) {
return l_type;
}
fl->l_type = l_type;
__get_user(fl->l_whence, &target_fl->l_whence);
__get_user(fl->l_start, &target_fl->l_start);
__get_user(fl->l_len, &target_fl->l_len);
__get_user(fl->l_pid, &target_fl->l_pid);
unlock_user_struct(target_fl, target_flock_addr, 0);
return 0;
}
static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
const struct flock64 *fl)
{
struct target_flock *target_fl;
short l_type;
if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
return -TARGET_EFAULT;
}
l_type = host_to_target_flock(fl->l_type);
__put_user(l_type, &target_fl->l_type);
__put_user(fl->l_whence, &target_fl->l_whence);
__put_user(fl->l_start, &target_fl->l_start);
__put_user(fl->l_len, &target_fl->l_len);
__put_user(fl->l_pid, &target_fl->l_pid);
unlock_user_struct(target_fl, target_flock_addr, 1);
return 0;
}
typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
struct target_oabi_flock64 {
abi_short l_type;
abi_short l_whence;
abi_llong l_start;
abi_llong l_len;
abi_int l_pid;
} QEMU_PACKED;
static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl,
abi_ulong target_flock_addr)
{
struct target_oabi_flock64 *target_fl;
int l_type;
if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
return -TARGET_EFAULT;
}
__get_user(l_type, &target_fl->l_type);
l_type = target_to_host_flock(l_type);
if (l_type < 0) {
return l_type;
}
fl->l_type = l_type;
__get_user(fl->l_whence, &target_fl->l_whence);
__get_user(fl->l_start, &target_fl->l_start);
__get_user(fl->l_len, &target_fl->l_len);
__get_user(fl->l_pid, &target_fl->l_pid);
unlock_user_struct(target_fl, target_flock_addr, 0);
return 0;
}
static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr,
const struct flock64 *fl)
{
struct target_oabi_flock64 *target_fl;
short l_type;
if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
return -TARGET_EFAULT;
}
l_type = host_to_target_flock(fl->l_type);
__put_user(l_type, &target_fl->l_type);
__put_user(fl->l_whence, &target_fl->l_whence);
__put_user(fl->l_start, &target_fl->l_start);
__put_user(fl->l_len, &target_fl->l_len);
__put_user(fl->l_pid, &target_fl->l_pid);
unlock_user_struct(target_fl, target_flock_addr, 1);
return 0;
}
#endif
static inline abi_long copy_from_user_flock64(struct flock64 *fl,
abi_ulong target_flock_addr)
{
struct target_flock64 *target_fl;
int l_type;
if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
return -TARGET_EFAULT;
}
__get_user(l_type, &target_fl->l_type);
l_type = target_to_host_flock(l_type);
if (l_type < 0) {
return l_type;
}
fl->l_type = l_type;
__get_user(fl->l_whence, &target_fl->l_whence);
__get_user(fl->l_start, &target_fl->l_start);
__get_user(fl->l_len, &target_fl->l_len);
__get_user(fl->l_pid, &target_fl->l_pid);
unlock_user_struct(target_fl, target_flock_addr, 0);
return 0;
}
static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
const struct flock64 *fl)
{
struct target_flock64 *target_fl;
short l_type;
if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
return -TARGET_EFAULT;
}
l_type = host_to_target_flock(fl->l_type);
__put_user(l_type, &target_fl->l_type);
__put_user(fl->l_whence, &target_fl->l_whence);
__put_user(fl->l_start, &target_fl->l_start);
__put_user(fl->l_len, &target_fl->l_len);
__put_user(fl->l_pid, &target_fl->l_pid);
unlock_user_struct(target_fl, target_flock_addr, 1);
return 0;
}
static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
{
struct flock64 fl64;
#ifdef F_GETOWN_EX
struct f_owner_ex fox;
struct target_f_owner_ex *target_fox;
#endif
abi_long ret;
int host_cmd = target_to_host_fcntl_cmd(cmd);
if (host_cmd == -TARGET_EINVAL)
return host_cmd;
switch(cmd) {
case TARGET_F_GETLK:
ret = copy_from_user_flock(&fl64, arg);
if (ret) {
return ret;
}
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
if (ret == 0) {
ret = copy_to_user_flock(arg, &fl64);
}
break;
case TARGET_F_SETLK:
case TARGET_F_SETLKW:
ret = copy_from_user_flock(&fl64, arg);
if (ret) {
return ret;
}
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
break;
case TARGET_F_GETLK64:
case TARGET_F_OFD_GETLK:
ret = copy_from_user_flock64(&fl64, arg);
if (ret) {
return ret;
}
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
if (ret == 0) {
ret = copy_to_user_flock64(arg, &fl64);
}
break;
case TARGET_F_SETLK64:
case TARGET_F_SETLKW64:
case TARGET_F_OFD_SETLK:
case TARGET_F_OFD_SETLKW:
ret = copy_from_user_flock64(&fl64, arg);
if (ret) {
return ret;
}
ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
break;
case TARGET_F_GETFL:
ret = get_errno(safe_fcntl(fd, host_cmd, arg));
if (ret >= 0) {
ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
if (O_LARGEFILE == 0 && HOST_LONG_BITS == 64) {
ret |= TARGET_O_LARGEFILE;
}
}
break;
case TARGET_F_SETFL:
ret = get_errno(safe_fcntl(fd, host_cmd,
target_to_host_bitmask(arg,
fcntl_flags_tbl)));
break;
#ifdef F_GETOWN_EX
case TARGET_F_GETOWN_EX:
ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
if (ret >= 0) {
if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
return -TARGET_EFAULT;
target_fox->type = tswap32(fox.type);
target_fox->pid = tswap32(fox.pid);
unlock_user_struct(target_fox, arg, 1);
}
break;
#endif
#ifdef F_SETOWN_EX
case TARGET_F_SETOWN_EX:
if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
return -TARGET_EFAULT;
fox.type = tswap32(target_fox->type);
fox.pid = tswap32(target_fox->pid);
unlock_user_struct(target_fox, arg, 0);
ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
break;
#endif
case TARGET_F_SETSIG:
ret = get_errno(safe_fcntl(fd, host_cmd, target_to_host_signal(arg)));
break;
case TARGET_F_GETSIG:
ret = host_to_target_signal(get_errno(safe_fcntl(fd, host_cmd, arg)));
break;
case TARGET_F_SETOWN:
case TARGET_F_GETOWN:
case TARGET_F_SETLEASE:
case TARGET_F_GETLEASE:
case TARGET_F_SETPIPE_SZ:
case TARGET_F_GETPIPE_SZ:
case TARGET_F_ADD_SEALS:
case TARGET_F_GET_SEALS:
ret = get_errno(safe_fcntl(fd, host_cmd, arg));
break;
default:
ret = get_errno(safe_fcntl(fd, cmd, arg));
break;
}
return ret;
}
#ifdef USE_UID16
static inline int high2lowuid(int uid)
{
if (uid > 65535)
return 65534;
else
return uid;
}
static inline int high2lowgid(int gid)
{
if (gid > 65535)
return 65534;
else
return gid;
}
static inline int low2highuid(int uid)
{
if ((int16_t)uid == -1)
return -1;
else
return uid;
}
static inline int low2highgid(int gid)
{
if ((int16_t)gid == -1)
return -1;
else
return gid;
}
static inline int tswapid(int id)
{
return tswap16(id);
}
#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
#else
static inline int high2lowuid(int uid)
{
return uid;
}
static inline int high2lowgid(int gid)
{
return gid;
}
static inline int low2highuid(int uid)
{
return uid;
}
static inline int low2highgid(int gid)
{
return gid;
}
static inline int tswapid(int id)
{
return tswap32(id);
}
#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
#endif
* implement the Linux system call semantics of "change only for this thread",
* not the libc/POSIX semantics of "change for all threads in process".
* (See http://ewontfix.com/17/ for more details.)
* We use the 32-bit version of the syscalls if present; if it is not
* then either the host architecture supports 32-bit UIDs natively with
* the standard syscall, or the 16-bit UID is the best we can do.
*/
#ifdef __NR_setuid32
#define __NR_sys_setuid __NR_setuid32
#else
#define __NR_sys_setuid __NR_setuid
#endif
#ifdef __NR_setgid32
#define __NR_sys_setgid __NR_setgid32
#else
#define __NR_sys_setgid __NR_setgid
#endif
#ifdef __NR_setresuid32
#define __NR_sys_setresuid __NR_setresuid32
#else
#define __NR_sys_setresuid __NR_setresuid
#endif
#ifdef __NR_setresgid32
#define __NR_sys_setresgid __NR_setresgid32
#else
#define __NR_sys_setresgid __NR_setresgid
#endif
_syscall1(int, sys_setuid, uid_t, uid)
_syscall1(int, sys_setgid, gid_t, gid)
_syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
_syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
void syscall_init(void)
{
IOCTLEntry *ie;
const argtype *arg_type;
int size;
thunk_init(STRUCT_MAX);
#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
#include "syscall_types.h"
#undef STRUCT
#undef STRUCT_SPECIAL
no ioctl has all the bits at '1' in the size field */
ie = ioctl_entries;
while (ie->target_cmd != 0) {
if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
TARGET_IOC_SIZEMASK) {
arg_type = ie->arg_type;
if (arg_type[0] != TYPE_PTR) {
fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
ie->target_cmd);
exit(1);
}
arg_type++;
size = thunk_type_size(arg_type, 0);
ie->target_cmd = (ie->target_cmd &
~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
(size << TARGET_IOC_SIZESHIFT);
}
#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
(defined(__x86_64__) && defined(TARGET_X86_64))
if (unlikely(ie->target_cmd != ie->host_cmd)) {
fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
ie->name, ie->target_cmd, ie->host_cmd);
}
#endif
ie++;
}
}
#ifdef TARGET_NR_truncate64
static inline abi_long target_truncate64(CPUArchState *cpu_env, const char *arg1,
abi_long arg2,
abi_long arg3,
abi_long arg4)
{
if (regpairs_aligned(cpu_env, TARGET_NR_truncate64)) {
arg2 = arg3;
arg3 = arg4;
}
return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
}
#endif
#ifdef TARGET_NR_ftruncate64
static inline abi_long target_ftruncate64(CPUArchState *cpu_env, abi_long arg1,
abi_long arg2,
abi_long arg3,
abi_long arg4)
{
if (regpairs_aligned(cpu_env, TARGET_NR_ftruncate64)) {
arg2 = arg3;
arg3 = arg4;
}
return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
}
#endif
#if defined(TARGET_NR_timer_settime) || \
(defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD))
static inline abi_long target_to_host_itimerspec(struct itimerspec *host_its,
abi_ulong target_addr)
{
if (target_to_host_timespec(&host_its->it_interval, target_addr +
offsetof(struct target_itimerspec,
it_interval)) ||
target_to_host_timespec(&host_its->it_value, target_addr +
offsetof(struct target_itimerspec,
it_value))) {
return -TARGET_EFAULT;
}
return 0;
}
#endif
#if defined(TARGET_NR_timer_settime64) || \
(defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD))
static inline abi_long target_to_host_itimerspec64(struct itimerspec *host_its,
abi_ulong target_addr)
{
if (target_to_host_timespec64(&host_its->it_interval, target_addr +
offsetof(struct target__kernel_itimerspec,
it_interval)) ||
target_to_host_timespec64(&host_its->it_value, target_addr +
offsetof(struct target__kernel_itimerspec,
it_value))) {
return -TARGET_EFAULT;
}
return 0;
}
#endif
#if ((defined(TARGET_NR_timerfd_gettime) || \
defined(TARGET_NR_timerfd_settime)) && defined(CONFIG_TIMERFD)) || \
defined(TARGET_NR_timer_gettime) || defined(TARGET_NR_timer_settime)
static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
struct itimerspec *host_its)
{
if (host_to_target_timespec(target_addr + offsetof(struct target_itimerspec,
it_interval),
&host_its->it_interval) ||
host_to_target_timespec(target_addr + offsetof(struct target_itimerspec,
it_value),
&host_its->it_value)) {
return -TARGET_EFAULT;
}
return 0;
}
#endif
#if ((defined(TARGET_NR_timerfd_gettime64) || \
defined(TARGET_NR_timerfd_settime64)) && defined(CONFIG_TIMERFD)) || \
defined(TARGET_NR_timer_gettime64) || defined(TARGET_NR_timer_settime64)
static inline abi_long host_to_target_itimerspec64(abi_ulong target_addr,
struct itimerspec *host_its)
{
if (host_to_target_timespec64(target_addr +
offsetof(struct target__kernel_itimerspec,
it_interval),
&host_its->it_interval) ||
host_to_target_timespec64(target_addr +
offsetof(struct target__kernel_itimerspec,
it_value),
&host_its->it_value)) {
return -TARGET_EFAULT;
}
return 0;
}
#endif
#if defined(TARGET_NR_adjtimex) || \
(defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME))
static inline abi_long target_to_host_timex(struct timex *host_tx,
abi_long target_addr)
{
struct target_timex *target_tx;
if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) {
return -TARGET_EFAULT;
}
__get_user(host_tx->modes, &target_tx->modes);
__get_user(host_tx->offset, &target_tx->offset);
__get_user(host_tx->freq, &target_tx->freq);
__get_user(host_tx->maxerror, &target_tx->maxerror);
__get_user(host_tx->esterror, &target_tx->esterror);
__get_user(host_tx->status, &target_tx->status);
__get_user(host_tx->constant, &target_tx->constant);
__get_user(host_tx->precision, &target_tx->precision);
__get_user(host_tx->tolerance, &target_tx->tolerance);
__get_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
__get_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
__get_user(host_tx->tick, &target_tx->tick);
__get_user(host_tx->ppsfreq, &target_tx->ppsfreq);
__get_user(host_tx->jitter, &target_tx->jitter);
__get_user(host_tx->shift, &target_tx->shift);
__get_user(host_tx->stabil, &target_tx->stabil);
__get_user(host_tx->jitcnt, &target_tx->jitcnt);
__get_user(host_tx->calcnt, &target_tx->calcnt);
__get_user(host_tx->errcnt, &target_tx->errcnt);
__get_user(host_tx->stbcnt, &target_tx->stbcnt);
__get_user(host_tx->tai, &target_tx->tai);
unlock_user_struct(target_tx, target_addr, 0);
return 0;
}
static inline abi_long host_to_target_timex(abi_long target_addr,
struct timex *host_tx)
{
struct target_timex *target_tx;
if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) {
return -TARGET_EFAULT;
}
__put_user(host_tx->modes, &target_tx->modes);
__put_user(host_tx->offset, &target_tx->offset);
__put_user(host_tx->freq, &target_tx->freq);
__put_user(host_tx->maxerror, &target_tx->maxerror);
__put_user(host_tx->esterror, &target_tx->esterror);
__put_user(host_tx->status, &target_tx->status);
__put_user(host_tx->constant, &target_tx->constant);
__put_user(host_tx->precision, &target_tx->precision);
__put_user(host_tx->tolerance, &target_tx->tolerance);
__put_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
__put_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
__put_user(host_tx->tick, &target_tx->tick);
__put_user(host_tx->ppsfreq, &target_tx->ppsfreq);
__put_user(host_tx->jitter, &target_tx->jitter);
__put_user(host_tx->shift, &target_tx->shift);
__put_user(host_tx->stabil, &target_tx->stabil);
__put_user(host_tx->jitcnt, &target_tx->jitcnt);
__put_user(host_tx->calcnt, &target_tx->calcnt);
__put_user(host_tx->errcnt, &target_tx->errcnt);
__put_user(host_tx->stbcnt, &target_tx->stbcnt);
__put_user(host_tx->tai, &target_tx->tai);
unlock_user_struct(target_tx, target_addr, 1);
return 0;
}
#endif
#if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
static inline abi_long target_to_host_timex64(struct timex *host_tx,
abi_long target_addr)
{
struct target__kernel_timex *target_tx;
if (copy_from_user_timeval64(&host_tx->time, target_addr +
offsetof(struct target__kernel_timex,
time))) {
return -TARGET_EFAULT;
}
if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) {
return -TARGET_EFAULT;
}
__get_user(host_tx->modes, &target_tx->modes);
__get_user(host_tx->offset, &target_tx->offset);
__get_user(host_tx->freq, &target_tx->freq);
__get_user(host_tx->maxerror, &target_tx->maxerror);
__get_user(host_tx->esterror, &target_tx->esterror);
__get_user(host_tx->status, &target_tx->status);
__get_user(host_tx->constant, &target_tx->constant);
__get_user(host_tx->precision, &target_tx->precision);
__get_user(host_tx->tolerance, &target_tx->tolerance);
__get_user(host_tx->tick, &target_tx->tick);
__get_user(host_tx->ppsfreq, &target_tx->ppsfreq);
__get_user(host_tx->jitter, &target_tx->jitter);
__get_user(host_tx->shift, &target_tx->shift);
__get_user(host_tx->stabil, &target_tx->stabil);
__get_user(host_tx->jitcnt, &target_tx->jitcnt);
__get_user(host_tx->calcnt, &target_tx->calcnt);
__get_user(host_tx->errcnt, &target_tx->errcnt);
__get_user(host_tx->stbcnt, &target_tx->stbcnt);
__get_user(host_tx->tai, &target_tx->tai);
unlock_user_struct(target_tx, target_addr, 0);
return 0;
}
static inline abi_long host_to_target_timex64(abi_long target_addr,
struct timex *host_tx)
{
struct target__kernel_timex *target_tx;
if (copy_to_user_timeval64(target_addr +
offsetof(struct target__kernel_timex, time),
&host_tx->time)) {
return -TARGET_EFAULT;
}
if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) {
return -TARGET_EFAULT;
}
__put_user(host_tx->modes, &target_tx->modes);
__put_user(host_tx->offset, &target_tx->offset);
__put_user(host_tx->freq, &target_tx->freq);
__put_user(host_tx->maxerror, &target_tx->maxerror);
__put_user(host_tx->esterror, &target_tx->esterror);
__put_user(host_tx->status, &target_tx->status);
__put_user(host_tx->constant, &target_tx->constant);
__put_user(host_tx->precision, &target_tx->precision);
__put_user(host_tx->tolerance, &target_tx->tolerance);
__put_user(host_tx->tick, &target_tx->tick);
__put_user(host_tx->ppsfreq, &target_tx->ppsfreq);
__put_user(host_tx->jitter, &target_tx->jitter);
__put_user(host_tx->shift, &target_tx->shift);
__put_user(host_tx->stabil, &target_tx->stabil);
__put_user(host_tx->jitcnt, &target_tx->jitcnt);
__put_user(host_tx->calcnt, &target_tx->calcnt);
__put_user(host_tx->errcnt, &target_tx->errcnt);
__put_user(host_tx->stbcnt, &target_tx->stbcnt);
__put_user(host_tx->tai, &target_tx->tai);
unlock_user_struct(target_tx, target_addr, 1);
return 0;
}
#endif
#ifndef HAVE_SIGEV_NOTIFY_THREAD_ID
#define sigev_notify_thread_id _sigev_un._tid
#endif
static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
abi_ulong target_addr)
{
struct target_sigevent *target_sevp;
if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
return -TARGET_EFAULT;
}
* integer and a pointer in it; we follow the conversion approach
* used for handling sigval types in signal.c so the guest should get
* the correct value back even if we did a 64 bit byteswap and it's
* using the 32 bit integer.
*/
host_sevp->sigev_value.sival_ptr =
(void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr);
host_sevp->sigev_signo =
target_to_host_signal(tswap32(target_sevp->sigev_signo));
host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify);
host_sevp->sigev_notify_thread_id = tswap32(target_sevp->_sigev_un._tid);
unlock_user_struct(target_sevp, target_addr, 1);
return 0;
}
#if defined(TARGET_NR_mlockall)
static inline int target_to_host_mlockall_arg(int arg)
{
int result = 0;
if (arg & TARGET_MCL_CURRENT) {
result |= MCL_CURRENT;
}
if (arg & TARGET_MCL_FUTURE) {
result |= MCL_FUTURE;
}
#ifdef MCL_ONFAULT
if (arg & TARGET_MCL_ONFAULT) {
result |= MCL_ONFAULT;
}
#endif
return result;
}
#endif
static inline int target_to_host_msync_arg(abi_long arg)
{
return ((arg & TARGET_MS_ASYNC) ? MS_ASYNC : 0) |
((arg & TARGET_MS_INVALIDATE) ? MS_INVALIDATE : 0) |
((arg & TARGET_MS_SYNC) ? MS_SYNC : 0) |
(arg & ~(TARGET_MS_ASYNC | TARGET_MS_INVALIDATE | TARGET_MS_SYNC));
}
#if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \
defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \
defined(TARGET_NR_newfstatat))
static inline abi_long host_to_target_stat64(CPUArchState *cpu_env,
abi_ulong target_addr,
struct stat *host_st)
{
#if defined(TARGET_ARM) && defined(TARGET_ABI32)
if (cpu_env->eabi) {
struct target_eabi_stat64 *target_st;
if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
return -TARGET_EFAULT;
memset(target_st, 0, sizeof(struct target_eabi_stat64));
__put_user(host_st->st_dev, &target_st->st_dev);
__put_user(host_st->st_ino, &target_st->st_ino);
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
__put_user(host_st->st_ino, &target_st->__st_ino);
#endif
__put_user(host_st->st_mode, &target_st->st_mode);
__put_user(host_st->st_nlink, &target_st->st_nlink);
__put_user(host_st->st_uid, &target_st->st_uid);
__put_user(host_st->st_gid, &target_st->st_gid);
__put_user(host_st->st_rdev, &target_st->st_rdev);
__put_user(host_st->st_size, &target_st->st_size);
__put_user(host_st->st_blksize, &target_st->st_blksize);
__put_user(host_st->st_blocks, &target_st->st_blocks);
__put_user(host_st->st_atime, &target_st->target_st_atime);
__put_user(host_st->st_mtime, &target_st->target_st_mtime);
__put_user(host_st->st_ctime, &target_st->target_st_ctime);
#ifdef HAVE_STRUCT_STAT_ST_ATIM
__put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec);
__put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec);
__put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec);
#endif
unlock_user_struct(target_st, target_addr, 1);
} else
#endif
{
#if defined(TARGET_HAS_STRUCT_STAT64)
struct target_stat64 *target_st;
#else
struct target_stat *target_st;
#endif
if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
return -TARGET_EFAULT;
memset(target_st, 0, sizeof(*target_st));
__put_user(host_st->st_dev, &target_st->st_dev);
__put_user(host_st->st_ino, &target_st->st_ino);
#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
__put_user(host_st->st_ino, &target_st->__st_ino);
#endif
__put_user(host_st->st_mode, &target_st->st_mode);
__put_user(host_st->st_nlink, &target_st->st_nlink);
__put_user(host_st->st_uid, &target_st->st_uid);
__put_user(host_st->st_gid, &target_st->st_gid);
__put_user(host_st->st_rdev, &target_st->st_rdev);
__put_user(host_st->st_size, &target_st->st_size);
__put_user(host_st->st_blksize, &target_st->st_blksize);
__put_user(host_st->st_blocks, &target_st->st_blocks);
__put_user(host_st->st_atime, &target_st->target_st_atime);
__put_user(host_st->st_mtime, &target_st->target_st_mtime);
__put_user(host_st->st_ctime, &target_st->target_st_ctime);
#ifdef HAVE_STRUCT_STAT_ST_ATIM
__put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec);
__put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec);
__put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec);
#endif
unlock_user_struct(target_st, target_addr, 1);
}
return 0;
}
#endif
#if defined(TARGET_NR_statx) && defined(__NR_statx)
static inline abi_long host_to_target_statx(struct target_statx *host_stx,
abi_ulong target_addr)
{
struct target_statx *target_stx;
if (!lock_user_struct(VERIFY_WRITE, target_stx, target_addr, 0)) {
return -TARGET_EFAULT;
}
memset(target_stx, 0, sizeof(*target_stx));
__put_user(host_stx->stx_mask, &target_stx->stx_mask);
__put_user(host_stx->stx_blksize, &target_stx->stx_blksize);
__put_user(host_stx->stx_attributes, &target_stx->stx_attributes);
__put_user(host_stx->stx_nlink, &target_stx->stx_nlink);
__put_user(host_stx->stx_uid, &target_stx->stx_uid);
__put_user(host_stx->stx_gid, &target_stx->stx_gid);
__put_user(host_stx->stx_mode, &target_stx->stx_mode);
__put_user(host_stx->stx_ino, &target_stx->stx_ino);
__put_user(host_stx->stx_size, &target_stx->stx_size);
__put_user(host_stx->stx_blocks, &target_stx->stx_blocks);
__put_user(host_stx->stx_attributes_mask, &target_stx->stx_attributes_mask);
__put_user(host_stx->stx_atime.tv_sec, &target_stx->stx_atime.tv_sec);
__put_user(host_stx->stx_atime.tv_nsec, &target_stx->stx_atime.tv_nsec);
__put_user(host_stx->stx_btime.tv_sec, &target_stx->stx_btime.tv_sec);
__put_user(host_stx->stx_btime.tv_nsec, &target_stx->stx_btime.tv_nsec);
__put_user(host_stx->stx_ctime.tv_sec, &target_stx->stx_ctime.tv_sec);
__put_user(host_stx->stx_ctime.tv_nsec, &target_stx->stx_ctime.tv_nsec);
__put_user(host_stx->stx_mtime.tv_sec, &target_stx->stx_mtime.tv_sec);
__put_user(host_stx->stx_mtime.tv_nsec, &target_stx->stx_mtime.tv_nsec);
__put_user(host_stx->stx_rdev_major, &target_stx->stx_rdev_major);
__put_user(host_stx->stx_rdev_minor, &target_stx->stx_rdev_minor);
__put_user(host_stx->stx_dev_major, &target_stx->stx_dev_major);
__put_user(host_stx->stx_dev_minor, &target_stx->stx_dev_minor);
unlock_user_struct(target_stx, target_addr, 1);
return 0;
}
#endif
static int do_sys_futex(int *uaddr, int op, int val,
const struct timespec *timeout, int *uaddr2,
int val3)
{
#if HOST_LONG_BITS == 64
#if defined(__NR_futex)
return sys_futex(uaddr, op, val, timeout, uaddr2, val3);
#endif
#else
#if defined(__NR_futex_time64)
if (sizeof(timeout->tv_sec) == 8) {
return sys_futex_time64(uaddr, op, val, timeout, uaddr2, val3);
}
#endif
#if defined(__NR_futex)
return sys_futex(uaddr, op, val, timeout, uaddr2, val3);
#endif
#endif
g_assert_not_reached();
}
static int do_safe_futex(int *uaddr, int op, int val,
const struct timespec *timeout, int *uaddr2,
int val3)
{
#if HOST_LONG_BITS == 64
#if defined(__NR_futex)
return get_errno(safe_futex(uaddr, op, val, timeout, uaddr2, val3));
#endif
#else
#if defined(__NR_futex_time64)
if (sizeof(timeout->tv_sec) == 8) {
return get_errno(safe_futex_time64(uaddr, op, val, timeout, uaddr2,
val3));
}
#endif
#if defined(__NR_futex)
return get_errno(safe_futex(uaddr, op, val, timeout, uaddr2, val3));
#endif
#endif
return -TARGET_ENOSYS;
}
are not really atomic probably breaks things. However implementing
futexes locally would make futexes shared between multiple processes
tricky. However they're probably useless because guest atomic
operations won't work either. */
#if defined(TARGET_NR_futex) || defined(TARGET_NR_futex_time64)
static int do_futex(CPUState *cpu, bool time64, target_ulong uaddr,
int op, int val, target_ulong timeout,
target_ulong uaddr2, int val3)
{
struct timespec ts, *pts = NULL;
void *haddr2 = NULL;
int base_op;
#ifdef FUTEX_CMD_MASK
base_op = op & FUTEX_CMD_MASK;
#else
base_op = op;
#endif
switch (base_op) {
case FUTEX_WAIT:
case FUTEX_WAIT_BITSET:
val = tswap32(val);
break;
case FUTEX_WAIT_REQUEUE_PI:
val = tswap32(val);
haddr2 = g2h(cpu, uaddr2);
break;
case FUTEX_LOCK_PI:
case FUTEX_LOCK_PI2:
break;
case FUTEX_WAKE:
case FUTEX_WAKE_BITSET:
case FUTEX_TRYLOCK_PI:
case FUTEX_UNLOCK_PI:
timeout = 0;
break;
case FUTEX_FD:
val = target_to_host_signal(val);
timeout = 0;
break;
case FUTEX_CMP_REQUEUE:
case FUTEX_CMP_REQUEUE_PI:
val3 = tswap32(val3);
case FUTEX_REQUEUE:
case FUTEX_WAKE_OP:
* For these, the 4th argument is not TIMEOUT, but VAL2.
* But the prototype of do_safe_futex takes a pointer, so
* insert casts to satisfy the compiler. We do not need
* to tswap VAL2 since it's not compared to guest memory.
*/
pts = (struct timespec *)(uintptr_t)timeout;
timeout = 0;
haddr2 = g2h(cpu, uaddr2);
break;
default:
return -TARGET_ENOSYS;
}
if (timeout) {
pts = &ts;
if (time64
? target_to_host_timespec64(pts, timeout)
: target_to_host_timespec(pts, timeout)) {
return -TARGET_EFAULT;
}
}
return do_safe_futex(g2h(cpu, uaddr), op, val, pts, haddr2, val3);
}
#endif
#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname,
abi_long handle, abi_long mount_id,
abi_long flags)
{
struct file_handle *target_fh;
struct file_handle *fh;
int mid = 0;
abi_long ret;
char *name;
unsigned int size, total_size;
if (get_user_s32(size, handle)) {
return -TARGET_EFAULT;
}
name = lock_user_string(pathname);
if (!name) {
return -TARGET_EFAULT;
}
total_size = sizeof(struct file_handle) + size;
target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0);
if (!target_fh) {
unlock_user(name, pathname, 0);
return -TARGET_EFAULT;
}
fh = g_malloc0(total_size);
fh->handle_bytes = size;
ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags));
unlock_user(name, pathname, 0);
* Other than the use of the handle_bytes field, the caller should treat
* the file_handle structure as an opaque data type
*/
memcpy(target_fh, fh, total_size);
target_fh->handle_bytes = tswap32(fh->handle_bytes);
target_fh->handle_type = tswap32(fh->handle_type);
g_free(fh);
unlock_user(target_fh, handle, total_size);
if (put_user_s32(mid, mount_id)) {
return -TARGET_EFAULT;
}
return ret;
}
#endif
#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle,
abi_long flags)
{
struct file_handle *target_fh;
struct file_handle *fh;
unsigned int size, total_size;
abi_long ret;
if (get_user_s32(size, handle)) {
return -TARGET_EFAULT;
}
total_size = sizeof(struct file_handle) + size;
target_fh = lock_user(VERIFY_READ, handle, total_size, 1);
if (!target_fh) {
return -TARGET_EFAULT;
}
fh = g_memdup(target_fh, total_size);
fh->handle_bytes = size;
fh->handle_type = tswap32(target_fh->handle_type);
ret = get_errno(open_by_handle_at(mount_fd, fh,
target_to_host_bitmask(flags, fcntl_flags_tbl)));
g_free(fh);
unlock_user(target_fh, handle, total_size);
return ret;
}
#endif
#if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4)
static abi_long do_signalfd4(int fd, abi_long mask, int flags)
{
int host_flags;
target_sigset_t *target_mask;
sigset_t host_mask;
abi_long ret;
if (flags & ~(TARGET_O_NONBLOCK_MASK | TARGET_O_CLOEXEC)) {
return -TARGET_EINVAL;
}
if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) {
return -TARGET_EFAULT;
}
target_to_host_sigset(&host_mask, target_mask);
host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
ret = get_errno(signalfd(fd, &host_mask, host_flags));
if (ret >= 0) {
fd_trans_register(ret, &target_signalfd_trans);
}
unlock_user_struct(target_mask, mask, 0);
return ret;
}
#endif
Assume all other status bits are the same. */
int host_to_target_waitstatus(int status)
{
if (WIFSIGNALED(status)) {
return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
}
if (WIFSTOPPED(status)) {
return (host_to_target_signal(WSTOPSIG(status)) << 8)
| (status & 0xff);
}
return status;
}
static int open_self_cmdline(CPUArchState *cpu_env, int fd)
{
CPUState *cpu = env_cpu(cpu_env);
struct linux_binprm *bprm = ((TaskState *)cpu->opaque)->bprm;
int i;
for (i = 0; i < bprm->argc; i++) {
size_t len = strlen(bprm->argv[i]) + 1;
if (write(fd, bprm->argv[i], len) != len) {
return -1;
}
}
return 0;
}
struct open_self_maps_data {
TaskState *ts;
IntervalTreeRoot *host_maps;
int fd;
bool smaps;
};
* Subroutine to output one line of /proc/self/maps,
* or one region of /proc/self/smaps.
*/
#ifdef TARGET_HPPA
# define test_stack(S, E, L) (E == L)
#else
# define test_stack(S, E, L) (S == L)
#endif
static void open_self_maps_4(const struct open_self_maps_data *d,
const MapInfo *mi, abi_ptr start,
abi_ptr end, unsigned flags)
{
const struct image_info *info = d->ts->info;
const char *path = mi->path;
uint64_t offset;
int fd = d->fd;
int count;
if (test_stack(start, end, info->stack_limit)) {
path = "[stack]";
} else if (start == info->brk) {
path = "[heap]";
} else if (start == info->vdso) {
path = "[vdso]";
}
offset = mi->offset;
if (mi->dev) {
uintptr_t hstart = (uintptr_t)g2h_untagged(start);
offset += hstart - mi->itree.start;
}
count = dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr
" %c%c%c%c %08" PRIx64 " %02x:%02x %"PRId64,
start, end,
(flags & PAGE_READ) ? 'r' : '-',
(flags & PAGE_WRITE_ORG) ? 'w' : '-',
(flags & PAGE_EXEC) ? 'x' : '-',
mi->is_priv ? 'p' : 's',
offset, major(mi->dev), minor(mi->dev),
(uint64_t)mi->inode);
if (path) {
dprintf(fd, "%*s%s\n", 73 - count, "", path);
} else {
dprintf(fd, "\n");
}
if (d->smaps) {
unsigned long size = end - start;
unsigned long page_size_kb = TARGET_PAGE_SIZE >> 10;
unsigned long size_kb = size >> 10;
dprintf(fd, "Size: %lu kB\n"
"KernelPageSize: %lu kB\n"
"MMUPageSize: %lu kB\n"
"Rss: 0 kB\n"
"Pss: 0 kB\n"
"Pss_Dirty: 0 kB\n"
"Shared_Clean: 0 kB\n"
"Shared_Dirty: 0 kB\n"
"Private_Clean: 0 kB\n"
"Private_Dirty: 0 kB\n"
"Referenced: 0 kB\n"
"Anonymous: %lu kB\n"
"LazyFree: 0 kB\n"
"AnonHugePages: 0 kB\n"
"ShmemPmdMapped: 0 kB\n"
"FilePmdMapped: 0 kB\n"
"Shared_Hugetlb: 0 kB\n"
"Private_Hugetlb: 0 kB\n"
"Swap: 0 kB\n"
"SwapPss: 0 kB\n"
"Locked: 0 kB\n"
"THPeligible: 0\n"
"VmFlags:%s%s%s%s%s%s%s%s\n",
size_kb, page_size_kb, page_size_kb,
(flags & PAGE_ANON ? size_kb : 0),
(flags & PAGE_READ) ? " rd" : "",
(flags & PAGE_WRITE_ORG) ? " wr" : "",
(flags & PAGE_EXEC) ? " ex" : "",
mi->is_priv ? "" : " sh",
(flags & PAGE_READ) ? " mr" : "",
(flags & PAGE_WRITE_ORG) ? " mw" : "",
(flags & PAGE_EXEC) ? " me" : "",
mi->is_priv ? "" : " ms");
}
}
* Callback for walk_memory_regions, when read_self_maps() fails.
* Proceed without the benefit of host /proc/self/maps cross-check.
*/
static int open_self_maps_3(void *opaque, target_ulong guest_start,
target_ulong guest_end, unsigned long flags)
{
static const MapInfo mi = { .is_priv = true };
open_self_maps_4(opaque, &mi, guest_start, guest_end, flags);
return 0;
}
* Callback for walk_memory_regions, when read_self_maps() succeeds.
*/
static int open_self_maps_2(void *opaque, target_ulong guest_start,
target_ulong guest_end, unsigned long flags)
{
const struct open_self_maps_data *d = opaque;
uintptr_t host_start = (uintptr_t)g2h_untagged(guest_start);
uintptr_t host_last = (uintptr_t)g2h_untagged(guest_end - 1);
while (1) {
IntervalTreeNode *n =
interval_tree_iter_first(d->host_maps, host_start, host_start);
MapInfo *mi = container_of(n, MapInfo, itree);
uintptr_t this_hlast = MIN(host_last, n->last);
target_ulong this_gend = h2g(this_hlast) + 1;
open_self_maps_4(d, mi, guest_start, this_gend, flags);
if (this_hlast == host_last) {
return 0;
}
host_start = this_hlast + 1;
guest_start = h2g(host_start);
}
}
static int open_self_maps_1(CPUArchState *env, int fd, bool smaps)
{
struct open_self_maps_data d = {
.ts = env_cpu(env)->opaque,
.host_maps = read_self_maps(),
.fd = fd,
.smaps = smaps
};
if (d.host_maps) {
walk_memory_regions(&d, open_self_maps_2);
free_self_maps(d.host_maps);
} else {
walk_memory_regions(&d, open_self_maps_3);
}
return 0;
}
static int open_self_maps(CPUArchState *cpu_env, int fd)
{
return open_self_maps_1(cpu_env, fd, false);
}
static int open_self_smaps(CPUArchState *cpu_env, int fd)
{
return open_self_maps_1(cpu_env, fd, true);
}
static int open_self_stat(CPUArchState *cpu_env, int fd)
{
CPUState *cpu = env_cpu(cpu_env);
TaskState *ts = cpu->opaque;
g_autoptr(GString) buf = g_string_new(NULL);
int i;
for (i = 0; i < 44; i++) {
if (i == 0) {
g_string_printf(buf, FMT_pid " ", getpid());
} else if (i == 1) {
gchar *bin = g_strrstr(ts->bprm->argv[0], "/");
bin = bin ? bin + 1 : ts->bprm->argv[0];
g_string_printf(buf, "(%.15s) ", bin);
} else if (i == 2) {
g_string_assign(buf, "R ");
} else if (i == 3) {
g_string_printf(buf, FMT_pid " ", getppid());
} else if (i == 21) {
g_string_printf(buf, "%" PRIu64 " ", ts->start_boottime);
} else if (i == 27) {
g_string_printf(buf, TARGET_ABI_FMT_ld " ", ts->info->start_stack);
} else {
g_string_printf(buf, "0%c", i == 43 ? '\n' : ' ');
}
if (write(fd, buf->str, buf->len) != buf->len) {
return -1;
}
}
return 0;
}
static int open_self_auxv(CPUArchState *cpu_env, int fd)
{
CPUState *cpu = env_cpu(cpu_env);
TaskState *ts = cpu->opaque;
abi_ulong auxv = ts->info->saved_auxv;
abi_ulong len = ts->info->auxv_len;
char *ptr;
* Auxiliary vector is stored in target process stack.
* read in whole auxv vector and copy it to file
*/
ptr = lock_user(VERIFY_READ, auxv, len, 0);
if (ptr != NULL) {
while (len > 0) {
ssize_t r;
r = write(fd, ptr, len);
if (r <= 0) {
break;
}
len -= r;
ptr += r;
}
lseek(fd, 0, SEEK_SET);
unlock_user(ptr, auxv, len);
}
return 0;
}
static int is_proc_myself(const char *filename, const char *entry)
{
if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
filename += strlen("/proc/");
if (!strncmp(filename, "self/", strlen("self/"))) {
filename += strlen("self/");
} else if (*filename >= '1' && *filename <= '9') {
char myself[80];
snprintf(myself, sizeof(myself), "%d/", getpid());
if (!strncmp(filename, myself, strlen(myself))) {
filename += strlen(myself);
} else {
return 0;
}
} else {
return 0;
}
if (!strcmp(filename, entry)) {
return 1;
}
}
return 0;
}
static void excp_dump_file(FILE *logfile, CPUArchState *env,
const char *fmt, int code)
{
if (logfile) {
CPUState *cs = env_cpu(env);
fprintf(logfile, fmt, code);
fprintf(logfile, "Failing executable: %s\n", exec_path);
cpu_dump_state(cs, logfile, 0);
open_self_maps(env, fileno(logfile));
}
}
void target_exception_dump(CPUArchState *env, const char *fmt, int code)
{
excp_dump_file(stderr, env, fmt, code);
if (qemu_log_separate()) {
FILE *logfile = qemu_log_trylock();
excp_dump_file(logfile, env, fmt, code);
qemu_log_unlock(logfile);
}
}
#include "target_proc.h"
#if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN || \
defined(HAVE_ARCH_PROC_CPUINFO) || \
defined(HAVE_ARCH_PROC_HARDWARE)
static int is_proc(const char *filename, const char *entry)
{
return strcmp(filename, entry) == 0;
}
#endif
#if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
static int open_net_route(CPUArchState *cpu_env, int fd)
{
FILE *fp;
char *line = NULL;
size_t len = 0;
ssize_t read;
fp = fopen("/proc/net/route", "r");
if (fp == NULL) {
return -1;
}
read = getline(&line, &len, fp);
dprintf(fd, "%s", line);
while ((read = getline(&line, &len, fp)) != -1) {
char iface[16];
uint32_t dest, gw, mask;
unsigned int flags, refcnt, use, metric, mtu, window, irtt;
int fields;
fields = sscanf(line,
"%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
iface, &dest, &gw, &flags, &refcnt, &use, &metric,
&mask, &mtu, &window, &irtt);
if (fields != 11) {
continue;
}
dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
metric, tswap32(mask), mtu, window, irtt);
}
free(line);
fclose(fp);
return 0;
}
#endif
int do_guest_openat(CPUArchState *cpu_env, int dirfd, const char *fname,
int flags, mode_t mode, bool safe)
{
g_autofree char *proc_name = NULL;
const char *pathname;
struct fake_open {
const char *filename;
int (*fill)(CPUArchState *cpu_env, int fd);
int (*cmp)(const char *s1, const char *s2);
};
const struct fake_open *fake_open;
static const struct fake_open fakes[] = {
{ "maps", open_self_maps, is_proc_myself },
{ "smaps", open_self_smaps, is_proc_myself },
{ "stat", open_self_stat, is_proc_myself },
{ "auxv", open_self_auxv, is_proc_myself },
{ "cmdline", open_self_cmdline, is_proc_myself },
#if HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN
{ "/proc/net/route", open_net_route, is_proc },
#endif
#if defined(HAVE_ARCH_PROC_CPUINFO)
{ "/proc/cpuinfo", open_cpuinfo, is_proc },
#endif
#if defined(HAVE_ARCH_PROC_HARDWARE)
{ "/proc/hardware", open_hardware, is_proc },
#endif
{ NULL, NULL, NULL }
};
proc_name = realpath(fname, NULL);
if (proc_name && strncmp(proc_name, "/proc/", 6) == 0) {
pathname = proc_name;
} else {
pathname = fname;
}
if (is_proc_myself(pathname, "exe")) {
if (safe) {
return safe_openat(dirfd, exec_path, flags, mode);
} else {
return openat(dirfd, exec_path, flags, mode);
}
}
for (fake_open = fakes; fake_open->filename; fake_open++) {
if (fake_open->cmp(pathname, fake_open->filename)) {
break;
}
}
if (fake_open->filename) {
const char *tmpdir;
char filename[PATH_MAX];
int fd, r;
fd = memfd_create("qemu-open", 0);
if (fd < 0) {
if (errno != ENOSYS) {
return fd;
}
tmpdir = getenv("TMPDIR");
if (!tmpdir)
tmpdir = "/tmp";
snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
fd = mkstemp(filename);
if (fd < 0) {
return fd;
}
unlink(filename);
}
if ((r = fake_open->fill(cpu_env, fd))) {
int e = errno;
close(fd);
errno = e;
return r;
}
lseek(fd, 0, SEEK_SET);
return fd;
}
if (safe) {
return safe_openat(dirfd, path(pathname), flags, mode);
} else {
return openat(dirfd, path(pathname), flags, mode);
}
}
ssize_t do_guest_readlink(const char *pathname, char *buf, size_t bufsiz)
{
ssize_t ret;
if (!pathname || !buf) {
errno = EFAULT;
return -1;
}
if (!bufsiz) {
errno = EINVAL;
return -1;
}
if (is_proc_myself((const char *)pathname, "exe")) {
* Don't worry about sign mismatch as earlier mapping
* logic would have thrown a bad address error.
*/
ret = MIN(strlen(exec_path), bufsiz);
memcpy(buf, exec_path, ret);
} else {
ret = readlink(path(pathname), buf, bufsiz);
}
return ret;
}
static int do_execv(CPUArchState *cpu_env, int dirfd,
abi_long pathname, abi_long guest_argp,
abi_long guest_envp, int flags, bool is_execveat)
{
int ret;
char **argp, **envp;
int argc, envc;
abi_ulong gp;
abi_ulong addr;
char **q;
void *p;
argc = 0;
for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
if (get_user_ual(addr, gp)) {
return -TARGET_EFAULT;
}
if (!addr) {
break;
}
argc++;
}
envc = 0;
for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
if (get_user_ual(addr, gp)) {
return -TARGET_EFAULT;
}
if (!addr) {
break;
}
envc++;
}
argp = g_new0(char *, argc + 1);
envp = g_new0(char *, envc + 1);
for (gp = guest_argp, q = argp; gp; gp += sizeof(abi_ulong), q++) {
if (get_user_ual(addr, gp)) {
goto execve_efault;
}
if (!addr) {
break;
}
*q = lock_user_string(addr);
if (!*q) {
goto execve_efault;
}
}
*q = NULL;
for (gp = guest_envp, q = envp; gp; gp += sizeof(abi_ulong), q++) {
if (get_user_ual(addr, gp)) {
goto execve_efault;
}
if (!addr) {
break;
}
*q = lock_user_string(addr);
if (!*q) {
goto execve_efault;
}
}
*q = NULL;
* Although execve() is not an interruptible syscall it is
* a special case where we must use the safe_syscall wrapper:
* if we allow a signal to happen before we make the host
* syscall then we will 'lose' it, because at the point of
* execve the process leaves QEMU's control. So we use the
* safe syscall wrapper to ensure that we either take the
* signal as a guest signal, or else it does not happen
* before the execve completes and makes it the other
* program's problem.
*/
p = lock_user_string(pathname);
if (!p) {
goto execve_efault;
}
const char *exe = p;
if (is_proc_myself(p, "exe")) {
exe = exec_path;
}
ret = is_execveat
? safe_execveat(dirfd, exe, argp, envp, flags)
: safe_execve(exe, argp, envp);
ret = get_errno(ret);
unlock_user(p, pathname, 0);
goto execve_end;
execve_efault:
ret = -TARGET_EFAULT;
execve_end:
for (gp = guest_argp, q = argp; *q; gp += sizeof(abi_ulong), q++) {
if (get_user_ual(addr, gp) || !addr) {
break;
}
unlock_user(*q, addr, 0);
}
for (gp = guest_envp, q = envp; *q; gp += sizeof(abi_ulong), q++) {
if (get_user_ual(addr, gp) || !addr) {
break;
}
unlock_user(*q, addr, 0);
}
g_free(argp);
g_free(envp);
return ret;
}
#define TIMER_MAGIC 0x0caf0000
#define TIMER_MAGIC_MASK 0xffff0000
static target_timer_t get_timer_id(abi_long arg)
{
target_timer_t timerid = arg;
if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) {
return -TARGET_EINVAL;
}
timerid &= 0xffff;
if (timerid >= ARRAY_SIZE(g_posix_timers)) {
return -TARGET_EINVAL;
}
return timerid;
}
static int target_to_host_cpu_mask(unsigned long *host_mask,
size_t host_size,
abi_ulong target_addr,
size_t target_size)
{
unsigned target_bits = sizeof(abi_ulong) * 8;
unsigned host_bits = sizeof(*host_mask) * 8;
abi_ulong *target_mask;
unsigned i, j;
assert(host_size >= target_size);
target_mask = lock_user(VERIFY_READ, target_addr, target_size, 1);
if (!target_mask) {
return -TARGET_EFAULT;
}
memset(host_mask, 0, host_size);
for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
unsigned bit = i * target_bits;
abi_ulong val;
__get_user(val, &target_mask[i]);
for (j = 0; j < target_bits; j++, bit++) {
if (val & (1UL << j)) {
host_mask[bit / host_bits] |= 1UL << (bit % host_bits);
}
}
}
unlock_user(target_mask, target_addr, 0);
return 0;
}
static int host_to_target_cpu_mask(const unsigned long *host_mask,
size_t host_size,
abi_ulong target_addr,
size_t target_size)
{
unsigned target_bits = sizeof(abi_ulong) * 8;
unsigned host_bits = sizeof(*host_mask) * 8;
abi_ulong *target_mask;
unsigned i, j;
assert(host_size >= target_size);
target_mask = lock_user(VERIFY_WRITE, target_addr, target_size, 0);
if (!target_mask) {
return -TARGET_EFAULT;
}
for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
unsigned bit = i * target_bits;
abi_ulong val = 0;
for (j = 0; j < target_bits; j++, bit++) {
if (host_mask[bit / host_bits] & (1UL << (bit % host_bits))) {
val |= 1UL << j;
}
}
__put_user(val, &target_mask[i]);
}
unlock_user(target_mask, target_addr, target_size);
return 0;
}
#ifdef TARGET_NR_getdents
static int do_getdents(abi_long dirfd, abi_long arg2, abi_long count)
{
g_autofree void *hdirp = NULL;
void *tdirp;
int hlen, hoff, toff;
int hreclen, treclen;
off64_t prev_diroff = 0;
hdirp = g_try_malloc(count);
if (!hdirp) {
return -TARGET_ENOMEM;
}
#ifdef EMULATE_GETDENTS_WITH_GETDENTS
hlen = sys_getdents(dirfd, hdirp, count);
#else
hlen = sys_getdents64(dirfd, hdirp, count);
#endif
hlen = get_errno(hlen);
if (is_error(hlen)) {
return hlen;
}
tdirp = lock_user(VERIFY_WRITE, arg2, count, 0);
if (!tdirp) {
return -TARGET_EFAULT;
}
for (hoff = toff = 0; hoff < hlen; hoff += hreclen, toff += treclen) {
#ifdef EMULATE_GETDENTS_WITH_GETDENTS
struct linux_dirent *hde = hdirp + hoff;
#else
struct linux_dirent64 *hde = hdirp + hoff;
#endif
struct target_dirent *tde = tdirp + toff;
int namelen;
uint8_t type;
namelen = strlen(hde->d_name);
hreclen = hde->d_reclen;
treclen = offsetof(struct target_dirent, d_name) + namelen + 2;
treclen = QEMU_ALIGN_UP(treclen, __alignof(struct target_dirent));
if (toff + treclen > count) {
* If the host struct is smaller than the target struct, or
* requires less alignment and thus packs into less space,
* then the host can return more entries than we can pass
* on to the guest.
*/
if (toff == 0) {
toff = -TARGET_EINVAL;
break;
}
* Return what we have, resetting the file pointer to the
* location of the first record not returned.
*/
lseek64(dirfd, prev_diroff, SEEK_SET);
break;
}
prev_diroff = hde->d_off;
tde->d_ino = tswapal(hde->d_ino);
tde->d_off = tswapal(hde->d_off);
tde->d_reclen = tswap16(treclen);
memcpy(tde->d_name, hde->d_name, namelen + 1);
* The getdents type is in what was formerly a padding byte at the
* end of the structure.
*/
#ifdef EMULATE_GETDENTS_WITH_GETDENTS
type = *((uint8_t *)hde + hreclen - 1);
#else
type = hde->d_type;
#endif
*((uint8_t *)tde + treclen - 1) = type;
}
unlock_user(tdirp, arg2, toff);
return toff;
}
#endif
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
static int do_getdents64(abi_long dirfd, abi_long arg2, abi_long count)
{
g_autofree void *hdirp = NULL;
void *tdirp;
int hlen, hoff, toff;
int hreclen, treclen;
off64_t prev_diroff = 0;
hdirp = g_try_malloc(count);
if (!hdirp) {
return -TARGET_ENOMEM;
}
hlen = get_errno(sys_getdents64(dirfd, hdirp, count));
if (is_error(hlen)) {
return hlen;
}
tdirp = lock_user(VERIFY_WRITE, arg2, count, 0);
if (!tdirp) {
return -TARGET_EFAULT;
}
for (hoff = toff = 0; hoff < hlen; hoff += hreclen, toff += treclen) {
struct linux_dirent64 *hde = hdirp + hoff;
struct target_dirent64 *tde = tdirp + toff;
int namelen;
namelen = strlen(hde->d_name) + 1;
hreclen = hde->d_reclen;
treclen = offsetof(struct target_dirent64, d_name) + namelen;
treclen = QEMU_ALIGN_UP(treclen, __alignof(struct target_dirent64));
if (toff + treclen > count) {
* If the host struct is smaller than the target struct, or
* requires less alignment and thus packs into less space,
* then the host can return more entries than we can pass
* on to the guest.
*/
if (toff == 0) {
toff = -TARGET_EINVAL;
break;
}
* Return what we have, resetting the file pointer to the
* location of the first record not returned.
*/
lseek64(dirfd, prev_diroff, SEEK_SET);
break;
}
prev_diroff = hde->d_off;
tde->d_ino = tswap64(hde->d_ino);
tde->d_off = tswap64(hde->d_off);
tde->d_reclen = tswap16(treclen);
tde->d_type = hde->d_type;
memcpy(tde->d_name, hde->d_name, namelen);
}
unlock_user(tdirp, arg2, toff);
return toff;
}
#endif
#if defined(TARGET_NR_riscv_hwprobe)
#define RISCV_HWPROBE_KEY_MVENDORID 0
#define RISCV_HWPROBE_KEY_MARCHID 1
#define RISCV_HWPROBE_KEY_MIMPID 2
#define RISCV_HWPROBE_KEY_BASE_BEHAVIOR 3
#define RISCV_HWPROBE_BASE_BEHAVIOR_IMA (1 << 0)
#define RISCV_HWPROBE_KEY_IMA_EXT_0 4
#define RISCV_HWPROBE_IMA_FD (1 << 0)
#define RISCV_HWPROBE_IMA_C (1 << 1)
#define RISCV_HWPROBE_IMA_V (1 << 2)
#define RISCV_HWPROBE_EXT_ZBA (1 << 3)
#define RISCV_HWPROBE_EXT_ZBB (1 << 4)
#define RISCV_HWPROBE_EXT_ZBS (1 << 5)
#define RISCV_HWPROBE_KEY_CPUPERF_0 5
#define RISCV_HWPROBE_MISALIGNED_UNKNOWN (0 << 0)
#define RISCV_HWPROBE_MISALIGNED_EMULATED (1 << 0)
#define RISCV_HWPROBE_MISALIGNED_SLOW (2 << 0)
#define RISCV_HWPROBE_MISALIGNED_FAST (3 << 0)
#define RISCV_HWPROBE_MISALIGNED_UNSUPPORTED (4 << 0)
#define RISCV_HWPROBE_MISALIGNED_MASK (7 << 0)
#define RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE 6
struct riscv_hwprobe {
abi_llong key;
abi_ullong value;
};
static void risc_hwprobe_fill_pairs(CPURISCVState *env,
struct riscv_hwprobe *pair,
size_t pair_count)
{
const RISCVCPUConfig *cfg = riscv_cpu_cfg(env);
for (; pair_count > 0; pair_count--, pair++) {
abi_llong key;
abi_ullong value;
__put_user(0, &pair->value);
__get_user(key, &pair->key);
switch (key) {
case RISCV_HWPROBE_KEY_MVENDORID:
__put_user(cfg->mvendorid, &pair->value);
break;
case RISCV_HWPROBE_KEY_MARCHID:
__put_user(cfg->marchid, &pair->value);
break;
case RISCV_HWPROBE_KEY_MIMPID:
__put_user(cfg->mimpid, &pair->value);
break;
case RISCV_HWPROBE_KEY_BASE_BEHAVIOR:
value = riscv_has_ext(env, RVI) &&
riscv_has_ext(env, RVM) &&
riscv_has_ext(env, RVA) ?
RISCV_HWPROBE_BASE_BEHAVIOR_IMA : 0;
__put_user(value, &pair->value);
break;
case RISCV_HWPROBE_KEY_IMA_EXT_0:
value = riscv_has_ext(env, RVF) &&
riscv_has_ext(env, RVD) ?
RISCV_HWPROBE_IMA_FD : 0;
value |= riscv_has_ext(env, RVC) ?
RISCV_HWPROBE_IMA_C : 0;
value |= riscv_has_ext(env, RVV) ?
RISCV_HWPROBE_IMA_V : 0;
value |= cfg->ext_zba ?
RISCV_HWPROBE_EXT_ZBA : 0;
value |= cfg->ext_zbb ?
RISCV_HWPROBE_EXT_ZBB : 0;
value |= cfg->ext_zbs ?
RISCV_HWPROBE_EXT_ZBS : 0;
__put_user(value, &pair->value);
break;
case RISCV_HWPROBE_KEY_CPUPERF_0:
__put_user(RISCV_HWPROBE_MISALIGNED_FAST, &pair->value);
break;
case RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE:
value = cfg->ext_zicboz ? cfg->cboz_blocksize : 0;
__put_user(value, &pair->value);
break;
default:
__put_user(-1, &pair->key);
break;
}
}
}
static int cpu_set_valid(abi_long arg3, abi_long arg4)
{
int ret, i, tmp;
size_t host_mask_size, target_mask_size;
unsigned long *host_mask;
* cpu_set_t represent CPU masks as bit masks of type unsigned long *.
* arg3 contains the cpu count.
*/
tmp = (8 * sizeof(abi_ulong));
target_mask_size = ((arg3 + tmp - 1) / tmp) * sizeof(abi_ulong);
host_mask_size = (target_mask_size + (sizeof(*host_mask) - 1)) &
~(sizeof(*host_mask) - 1);
host_mask = alloca(host_mask_size);
ret = target_to_host_cpu_mask(host_mask, host_mask_size,
arg4, target_mask_size);
if (ret != 0) {
return ret;
}
for (i = 0 ; i < host_mask_size / sizeof(*host_mask); i++) {
if (host_mask[i] != 0) {
return 0;
}
}
return -TARGET_EINVAL;
}
static abi_long do_riscv_hwprobe(CPUArchState *cpu_env, abi_long arg1,
abi_long arg2, abi_long arg3,
abi_long arg4, abi_long arg5)
{
int ret;
struct riscv_hwprobe *host_pairs;
if (arg5 != 0) {
return -TARGET_EINVAL;
}
if (arg3 != 0) {
ret = cpu_set_valid(arg3, arg4);
if (ret != 0) {
return ret;
}
} else if (arg4 != 0) {
return -TARGET_EINVAL;
}
if (arg2 == 0) {
return 0;
}
host_pairs = lock_user(VERIFY_WRITE, arg1,
sizeof(*host_pairs) * (size_t)arg2, 0);
if (host_pairs == NULL) {
return -TARGET_EFAULT;
}
risc_hwprobe_fill_pairs(cpu_env, host_pairs, arg2);
unlock_user(host_pairs, arg1, sizeof(*host_pairs) * (size_t)arg2);
return 0;
}
#endif
#if defined(TARGET_NR_pivot_root) && defined(__NR_pivot_root)
_syscall2(int, pivot_root, const char *, new_root, const char *, put_old)
#endif
#if defined(TARGET_NR_open_tree) && defined(__NR_open_tree)
#define __NR_sys_open_tree __NR_open_tree
_syscall3(int, sys_open_tree, int, __dfd, const char *, __filename,
unsigned int, __flags)
#endif
#if defined(TARGET_NR_move_mount) && defined(__NR_move_mount)
#define __NR_sys_move_mount __NR_move_mount
_syscall5(int, sys_move_mount, int, __from_dfd, const char *, __from_pathname,
int, __to_dfd, const char *, __to_pathname, unsigned int, flag)
#endif
* to have a single return point, so that actions, such as logging
* of syscall results, can be performed.
* All errnos that do_syscall() returns must be -TARGET_<errcode>.
*/
static abi_long do_syscall1(CPUArchState *cpu_env, int num, abi_long arg1,
abi_long arg2, abi_long arg3, abi_long arg4,
abi_long arg5, abi_long arg6, abi_long arg7,
abi_long arg8)
{
CPUState *cpu = env_cpu(cpu_env);
abi_long ret;
#if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) \
|| defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) \
|| defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64) \
|| defined(TARGET_NR_statx)
struct stat st;
#endif
#if defined(TARGET_NR_statfs) || defined(TARGET_NR_statfs64) \
|| defined(TARGET_NR_fstatfs)
struct statfs stfs;
#endif
void *p;
switch(num) {
case TARGET_NR_exit:
However in threaded applications it is used for thread termination,
and _exit_group is used for application termination.
Do thread termination if we have more then one thread. */
if (block_signals()) {
return -QEMU_ERESTARTSYS;
}
pthread_mutex_lock(&clone_lock);
if (CPU_NEXT(first_cpu)) {
TaskState *ts = cpu->opaque;
if (ts->child_tidptr) {
put_user_u32(0, ts->child_tidptr);
do_sys_futex(g2h(cpu, ts->child_tidptr),
FUTEX_WAKE, INT_MAX, NULL, NULL, 0);
}
object_unparent(OBJECT(cpu));
object_unref(OBJECT(cpu));
* At this point the CPU should be unrealized and removed
* from cpu lists. We can clean-up the rest of the thread
* data without the lock held.
*/
pthread_mutex_unlock(&clone_lock);
thread_cpu = NULL;
g_free(ts);
rcu_unregister_thread();
pthread_exit(NULL);
}
pthread_mutex_unlock(&clone_lock);
preexit_cleanup(cpu_env, arg1);
_exit(arg1);
return 0;
case TARGET_NR_read:
if (arg2 == 0 && arg3 == 0) {
return get_errno(safe_read(arg1, 0, 0));
} else {
if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
return -TARGET_EFAULT;
ret = get_errno(safe_read(arg1, p, arg3));
if (ret >= 0 &&
fd_trans_host_to_target_data(arg1)) {
ret = fd_trans_host_to_target_data(arg1)(p, ret);
}
unlock_user(p, arg2, ret);
}
return ret;
case TARGET_NR_write:
if (arg2 == 0 && arg3 == 0) {
return get_errno(safe_write(arg1, 0, 0));
}
if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
return -TARGET_EFAULT;
if (fd_trans_target_to_host_data(arg1)) {
void *copy = g_malloc(arg3);
memcpy(copy, p, arg3);
ret = fd_trans_target_to_host_data(arg1)(copy, arg3);
if (ret >= 0) {
ret = get_errno(safe_write(arg1, copy, ret));
}
g_free(copy);
} else {
ret = get_errno(safe_write(arg1, p, arg3));
}
unlock_user(p, arg2, 0);
return ret;
#ifdef TARGET_NR_open
case TARGET_NR_open:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(do_guest_openat(cpu_env, AT_FDCWD, p,
target_to_host_bitmask(arg2, fcntl_flags_tbl),
arg3, true));
fd_trans_unregister(ret);
unlock_user(p, arg1, 0);
return ret;
#endif
case TARGET_NR_openat:
if (!(p = lock_user_string(arg2)))
return -TARGET_EFAULT;
ret = get_errno(do_guest_openat(cpu_env, arg1, p,
target_to_host_bitmask(arg3, fcntl_flags_tbl),
arg4, true));
fd_trans_unregister(ret);
unlock_user(p, arg2, 0);
return ret;
#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
case TARGET_NR_name_to_handle_at:
ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5);
return ret;
#endif
#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
case TARGET_NR_open_by_handle_at:
ret = do_open_by_handle_at(arg1, arg2, arg3);
fd_trans_unregister(ret);
return ret;
#endif
#if defined(__NR_pidfd_open) && defined(TARGET_NR_pidfd_open)
case TARGET_NR_pidfd_open:
return get_errno(pidfd_open(arg1, arg2));
#endif
#if defined(__NR_pidfd_send_signal) && defined(TARGET_NR_pidfd_send_signal)
case TARGET_NR_pidfd_send_signal:
{
siginfo_t uinfo, *puinfo;
if (arg3) {
p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
if (!p) {
return -TARGET_EFAULT;
}
target_to_host_siginfo(&uinfo, p);
unlock_user(p, arg3, 0);
puinfo = &uinfo;
} else {
puinfo = NULL;
}
ret = get_errno(pidfd_send_signal(arg1, target_to_host_signal(arg2),
puinfo, arg4));
}
return ret;
#endif
#if defined(__NR_pidfd_getfd) && defined(TARGET_NR_pidfd_getfd)
case TARGET_NR_pidfd_getfd:
return get_errno(pidfd_getfd(arg1, arg2, arg3));
#endif
case TARGET_NR_close:
fd_trans_unregister(arg1);
return get_errno(close(arg1));
#if defined(__NR_close_range) && defined(TARGET_NR_close_range)
case TARGET_NR_close_range:
ret = get_errno(sys_close_range(arg1, arg2, arg3));
if (ret == 0 && !(arg3 & CLOSE_RANGE_CLOEXEC)) {
abi_long fd, maxfd;
maxfd = MIN(arg2, target_fd_max);
for (fd = arg1; fd < maxfd; fd++) {
fd_trans_unregister(fd);
}
}
return ret;
#endif
case TARGET_NR_brk:
return do_brk(arg1);
#ifdef TARGET_NR_fork
case TARGET_NR_fork:
return get_errno(do_fork(cpu_env, TARGET_SIGCHLD, 0, 0, 0, 0));
#endif
#ifdef TARGET_NR_waitpid
case TARGET_NR_waitpid:
{
int status;
ret = get_errno(safe_wait4(arg1, &status, arg3, 0));
if (!is_error(ret) && arg2 && ret
&& put_user_s32(host_to_target_waitstatus(status), arg2))
return -TARGET_EFAULT;
}
return ret;
#endif
#ifdef TARGET_NR_waitid
case TARGET_NR_waitid:
{
siginfo_t info;
info.si_pid = 0;
ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL));
if (!is_error(ret) && arg3 && info.si_pid != 0) {
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
return -TARGET_EFAULT;
host_to_target_siginfo(p, &info);
unlock_user(p, arg3, sizeof(target_siginfo_t));
}
}
return ret;
#endif
#ifdef TARGET_NR_creat
case TARGET_NR_creat:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(creat(p, arg2));
fd_trans_unregister(ret);
unlock_user(p, arg1, 0);
return ret;
#endif
#ifdef TARGET_NR_link
case TARGET_NR_link:
{
void * p2;
p = lock_user_string(arg1);
p2 = lock_user_string(arg2);
if (!p || !p2)
ret = -TARGET_EFAULT;
else
ret = get_errno(link(p, p2));
unlock_user(p2, arg2, 0);
unlock_user(p, arg1, 0);
}
return ret;
#endif
#if defined(TARGET_NR_linkat)
case TARGET_NR_linkat:
{
void * p2 = NULL;
if (!arg2 || !arg4)
return -TARGET_EFAULT;
p = lock_user_string(arg2);
p2 = lock_user_string(arg4);
if (!p || !p2)
ret = -TARGET_EFAULT;
else
ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
unlock_user(p, arg2, 0);
unlock_user(p2, arg4, 0);
}
return ret;
#endif
#ifdef TARGET_NR_unlink
case TARGET_NR_unlink:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(unlink(p));
unlock_user(p, arg1, 0);
return ret;
#endif
#if defined(TARGET_NR_unlinkat)
case TARGET_NR_unlinkat:
if (!(p = lock_user_string(arg2)))
return -TARGET_EFAULT;
ret = get_errno(unlinkat(arg1, p, arg3));
unlock_user(p, arg2, 0);
return ret;
#endif
case TARGET_NR_execveat:
return do_execv(cpu_env, arg1, arg2, arg3, arg4, arg5, true);
case TARGET_NR_execve:
return do_execv(cpu_env, AT_FDCWD, arg1, arg2, arg3, 0, false);
case TARGET_NR_chdir:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(chdir(p));
unlock_user(p, arg1, 0);
return ret;
#ifdef TARGET_NR_time
case TARGET_NR_time:
{
time_t host_time;
ret = get_errno(time(&host_time));
if (!is_error(ret)
&& arg1
&& put_user_sal(host_time, arg1))
return -TARGET_EFAULT;
}
return ret;
#endif
#ifdef TARGET_NR_mknod
case TARGET_NR_mknod:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(mknod(p, arg2, arg3));
unlock_user(p, arg1, 0);
return ret;
#endif
#if defined(TARGET_NR_mknodat)
case TARGET_NR_mknodat:
if (!(p = lock_user_string(arg2)))
return -TARGET_EFAULT;
ret = get_errno(mknodat(arg1, p, arg3, arg4));
unlock_user(p, arg2, 0);
return ret;
#endif
#ifdef TARGET_NR_chmod
case TARGET_NR_chmod:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(chmod(p, arg2));
unlock_user(p, arg1, 0);
return ret;
#endif
#ifdef TARGET_NR_lseek
case TARGET_NR_lseek:
return get_errno(lseek(arg1, arg2, arg3));
#endif
#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
case TARGET_NR_getxpid:
cpu_env->ir[IR_A4] = getppid();
return get_errno(getpid());
#endif
#ifdef TARGET_NR_getpid
case TARGET_NR_getpid:
return get_errno(getpid());
#endif
case TARGET_NR_mount:
{
void *p2, *p3;
if (arg1) {
p = lock_user_string(arg1);
if (!p) {
return -TARGET_EFAULT;
}
} else {
p = NULL;
}
p2 = lock_user_string(arg2);
if (!p2) {
if (arg1) {
unlock_user(p, arg1, 0);
}
return -TARGET_EFAULT;
}
if (arg3) {
p3 = lock_user_string(arg3);
if (!p3) {
if (arg1) {
unlock_user(p, arg1, 0);
}
unlock_user(p2, arg2, 0);
return -TARGET_EFAULT;
}
} else {
p3 = NULL;
}
* do that since it's not guaranteed to be a NULL-terminated
* string.
*/
if (!arg5) {
ret = mount(p, p2, p3, (unsigned long)arg4, NULL);
} else {
ret = mount(p, p2, p3, (unsigned long)arg4, g2h(cpu, arg5));
}
ret = get_errno(ret);
if (arg1) {
unlock_user(p, arg1, 0);
}
unlock_user(p2, arg2, 0);
if (arg3) {
unlock_user(p3, arg3, 0);
}
}
return ret;
#if defined(TARGET_NR_umount) || defined(TARGET_NR_oldumount)
#if defined(TARGET_NR_umount)
case TARGET_NR_umount:
#endif
#if defined(TARGET_NR_oldumount)
case TARGET_NR_oldumount:
#endif
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(umount(p));
unlock_user(p, arg1, 0);
return ret;
#endif
#if defined(TARGET_NR_move_mount) && defined(__NR_move_mount)
case TARGET_NR_move_mount:
{
void *p2, *p4;
if (!arg2 || !arg4) {
return -TARGET_EFAULT;
}
p2 = lock_user_string(arg2);
if (!p2) {
return -TARGET_EFAULT;
}
p4 = lock_user_string(arg4);
if (!p4) {
unlock_user(p2, arg2, 0);
return -TARGET_EFAULT;
}
ret = get_errno(sys_move_mount(arg1, p2, arg3, p4, arg5));
unlock_user(p2, arg2, 0);
unlock_user(p4, arg4, 0);
return ret;
}
#endif
#if defined(TARGET_NR_open_tree) && defined(__NR_open_tree)
case TARGET_NR_open_tree:
{
void *p2;
int host_flags;
if (!arg2) {
return -TARGET_EFAULT;
}
p2 = lock_user_string(arg2);
if (!p2) {
return -TARGET_EFAULT;
}
host_flags = arg3 & ~TARGET_O_CLOEXEC;
if (arg3 & TARGET_O_CLOEXEC) {
host_flags |= O_CLOEXEC;
}
ret = get_errno(sys_open_tree(arg1, p2, host_flags));
unlock_user(p2, arg2, 0);
return ret;
}
#endif
#ifdef TARGET_NR_stime
case TARGET_NR_stime:
{
struct timespec ts;
ts.tv_nsec = 0;
if (get_user_sal(ts.tv_sec, arg1)) {
return -TARGET_EFAULT;
}
return get_errno(clock_settime(CLOCK_REALTIME, &ts));
}
#endif
#ifdef TARGET_NR_alarm
case TARGET_NR_alarm:
return alarm(arg1);
#endif
#ifdef TARGET_NR_pause
case TARGET_NR_pause:
if (!block_signals()) {
sigsuspend(&((TaskState *)cpu->opaque)->signal_mask);
}
return -TARGET_EINTR;
#endif
#ifdef TARGET_NR_utime
case TARGET_NR_utime:
{
struct utimbuf tbuf, *host_tbuf;
struct target_utimbuf *target_tbuf;
if (arg2) {
if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
return -TARGET_EFAULT;
tbuf.actime = tswapal(target_tbuf->actime);
tbuf.modtime = tswapal(target_tbuf->modtime);
unlock_user_struct(target_tbuf, arg2, 0);
host_tbuf = &tbuf;
} else {
host_tbuf = NULL;
}
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(utime(p, host_tbuf));
unlock_user(p, arg1, 0);
}
return ret;
#endif
#ifdef TARGET_NR_utimes
case TARGET_NR_utimes:
{
struct timeval *tvp, tv[2];
if (arg2) {
if (copy_from_user_timeval(&tv[0], arg2)
|| copy_from_user_timeval(&tv[1],
arg2 + sizeof(struct target_timeval)))
return -TARGET_EFAULT;
tvp = tv;
} else {
tvp = NULL;
}
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(utimes(p, tvp));
unlock_user(p, arg1, 0);
}
return ret;
#endif
#if defined(TARGET_NR_futimesat)
case TARGET_NR_futimesat:
{
struct timeval *tvp, tv[2];
if (arg3) {
if (copy_from_user_timeval(&tv[0], arg3)
|| copy_from_user_timeval(&tv[1],
arg3 + sizeof(struct target_timeval)))
return -TARGET_EFAULT;
tvp = tv;
} else {
tvp = NULL;
}
if (!(p = lock_user_string(arg2))) {
return -TARGET_EFAULT;
}
ret = get_errno(futimesat(arg1, path(p), tvp));
unlock_user(p, arg2, 0);
}
return ret;
#endif
#ifdef TARGET_NR_access
case TARGET_NR_access:
if (!(p = lock_user_string(arg1))) {
return -TARGET_EFAULT;
}
ret = get_errno(access(path(p), arg2));
unlock_user(p, arg1, 0);
return ret;
#endif
#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
case TARGET_NR_faccessat:
if (!(p = lock_user_string(arg2))) {
return -TARGET_EFAULT;
}
ret = get_errno(faccessat(arg1, p, arg3, 0));
unlock_user(p, arg2, 0);
return ret;
#endif
#if defined(TARGET_NR_faccessat2)
case TARGET_NR_faccessat2:
if (!(p = lock_user_string(arg2))) {
return -TARGET_EFAULT;
}
ret = get_errno(faccessat(arg1, p, arg3, arg4));
unlock_user(p, arg2, 0);
return ret;
#endif
#ifdef TARGET_NR_nice
case TARGET_NR_nice:
return get_errno(nice(arg1));
#endif
case TARGET_NR_sync:
sync();
return 0;
#if defined(TARGET_NR_syncfs) && defined(CONFIG_SYNCFS)
case TARGET_NR_syncfs:
return get_errno(syncfs(arg1));
#endif
case TARGET_NR_kill:
return get_errno(safe_kill(arg1, target_to_host_signal(arg2)));
#ifdef TARGET_NR_rename
case TARGET_NR_rename:
{
void *p2;
p = lock_user_string(arg1);
p2 = lock_user_string(arg2);
if (!p || !p2)
ret = -TARGET_EFAULT;
else
ret = get_errno(rename(p, p2));
unlock_user(p2, arg2, 0);
unlock_user(p, arg1, 0);
}
return ret;
#endif
#if defined(TARGET_NR_renameat)
case TARGET_NR_renameat:
{
void *p2;
p = lock_user_string(arg2);
p2 = lock_user_string(arg4);
if (!p || !p2)
ret = -TARGET_EFAULT;
else
ret = get_errno(renameat(arg1, p, arg3, p2));
unlock_user(p2, arg4, 0);
unlock_user(p, arg2, 0);
}
return ret;
#endif
#if defined(TARGET_NR_renameat2)
case TARGET_NR_renameat2:
{
void *p2;
p = lock_user_string(arg2);
p2 = lock_user_string(arg4);
if (!p || !p2) {
ret = -TARGET_EFAULT;
} else {
ret = get_errno(sys_renameat2(arg1, p, arg3, p2, arg5));
}
unlock_user(p2, arg4, 0);
unlock_user(p, arg2, 0);
}
return ret;
#endif
#ifdef TARGET_NR_mkdir
case TARGET_NR_mkdir:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(mkdir(p, arg2));
unlock_user(p, arg1, 0);
return ret;
#endif
#if defined(TARGET_NR_mkdirat)
case TARGET_NR_mkdirat:
if (!(p = lock_user_string(arg2)))
return -TARGET_EFAULT;
ret = get_errno(mkdirat(arg1, p, arg3));
unlock_user(p, arg2, 0);
return ret;
#endif
#ifdef TARGET_NR_rmdir
case TARGET_NR_rmdir:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(rmdir(p));
unlock_user(p, arg1, 0);
return ret;
#endif
case TARGET_NR_dup:
ret = get_errno(dup(arg1));
if (ret >= 0) {
fd_trans_dup(arg1, ret);
}
return ret;
#ifdef TARGET_NR_pipe
case TARGET_NR_pipe:
return do_pipe(cpu_env, arg1, 0, 0);
#endif
#ifdef TARGET_NR_pipe2
case TARGET_NR_pipe2:
return do_pipe(cpu_env, arg1,
target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
#endif
case TARGET_NR_times:
{
struct target_tms *tmsp;
struct tms tms;
ret = get_errno(times(&tms));
if (arg1) {
tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
if (!tmsp)
return -TARGET_EFAULT;
tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
}
if (!is_error(ret))
ret = host_to_target_clock_t(ret);
}
return ret;
case TARGET_NR_acct:
if (arg1 == 0) {
ret = get_errno(acct(NULL));
} else {
if (!(p = lock_user_string(arg1))) {
return -TARGET_EFAULT;
}
ret = get_errno(acct(path(p)));
unlock_user(p, arg1, 0);
}
return ret;
#ifdef TARGET_NR_umount2
case TARGET_NR_umount2:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(umount2(p, arg2));
unlock_user(p, arg1, 0);
return ret;
#endif
case TARGET_NR_ioctl:
return do_ioctl(arg1, arg2, arg3);
#ifdef TARGET_NR_fcntl
case TARGET_NR_fcntl:
return do_fcntl(arg1, arg2, arg3);
#endif
case TARGET_NR_setpgid:
return get_errno(setpgid(arg1, arg2));
case TARGET_NR_umask:
return get_errno(umask(arg1));
case TARGET_NR_chroot:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(chroot(p));
unlock_user(p, arg1, 0);
return ret;
#ifdef TARGET_NR_dup2
case TARGET_NR_dup2:
ret = get_errno(dup2(arg1, arg2));
if (ret >= 0) {
fd_trans_dup(arg1, arg2);
}
return ret;
#endif
#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
case TARGET_NR_dup3:
{
int host_flags;
if ((arg3 & ~TARGET_O_CLOEXEC) != 0) {
return -EINVAL;
}
host_flags = target_to_host_bitmask(arg3, fcntl_flags_tbl);
ret = get_errno(dup3(arg1, arg2, host_flags));
if (ret >= 0) {
fd_trans_dup(arg1, arg2);
}
return ret;
}
#endif
#ifdef TARGET_NR_getppid
case TARGET_NR_getppid:
return get_errno(getppid());
#endif
#ifdef TARGET_NR_getpgrp
case TARGET_NR_getpgrp:
return get_errno(getpgrp());
#endif
case TARGET_NR_setsid:
return get_errno(setsid());
#ifdef TARGET_NR_sigaction
case TARGET_NR_sigaction:
{
#if defined(TARGET_MIPS)
struct target_sigaction act, oact, *pact, *old_act;
if (arg2) {
if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
return -TARGET_EFAULT;
act._sa_handler = old_act->_sa_handler;
target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
act.sa_flags = old_act->sa_flags;
unlock_user_struct(old_act, arg2, 0);
pact = &act;
} else {
pact = NULL;
}
ret = get_errno(do_sigaction(arg1, pact, &oact, 0));
if (!is_error(ret) && arg3) {
if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
return -TARGET_EFAULT;
old_act->_sa_handler = oact._sa_handler;
old_act->sa_flags = oact.sa_flags;
old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
old_act->sa_mask.sig[1] = 0;
old_act->sa_mask.sig[2] = 0;
old_act->sa_mask.sig[3] = 0;
unlock_user_struct(old_act, arg3, 1);
}
#else
struct target_old_sigaction *old_act;
struct target_sigaction act, oact, *pact;
if (arg2) {
if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
return -TARGET_EFAULT;
act._sa_handler = old_act->_sa_handler;
target_siginitset(&act.sa_mask, old_act->sa_mask);
act.sa_flags = old_act->sa_flags;
#ifdef TARGET_ARCH_HAS_SA_RESTORER
act.sa_restorer = old_act->sa_restorer;
#endif
unlock_user_struct(old_act, arg2, 0);
pact = &act;
} else {
pact = NULL;
}
ret = get_errno(do_sigaction(arg1, pact, &oact, 0));
if (!is_error(ret) && arg3) {
if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
return -TARGET_EFAULT;
old_act->_sa_handler = oact._sa_handler;
old_act->sa_mask = oact.sa_mask.sig[0];
old_act->sa_flags = oact.sa_flags;
#ifdef TARGET_ARCH_HAS_SA_RESTORER
old_act->sa_restorer = oact.sa_restorer;
#endif
unlock_user_struct(old_act, arg3, 1);
}
#endif
}
return ret;
#endif
case TARGET_NR_rt_sigaction:
{
* For Alpha and SPARC this is a 5 argument syscall, with
* a 'restorer' parameter which must be copied into the
* sa_restorer field of the sigaction struct.
* For Alpha that 'restorer' is arg5; for SPARC it is arg4,
* and arg5 is the sigsetsize.
*/
#if defined(TARGET_ALPHA)
target_ulong sigsetsize = arg4;
target_ulong restorer = arg5;
#elif defined(TARGET_SPARC)
target_ulong restorer = arg4;
target_ulong sigsetsize = arg5;
#else
target_ulong sigsetsize = arg4;
target_ulong restorer = 0;
#endif
struct target_sigaction *act = NULL;
struct target_sigaction *oact = NULL;
if (sigsetsize != sizeof(target_sigset_t)) {
return -TARGET_EINVAL;
}
if (arg2 && !lock_user_struct(VERIFY_READ, act, arg2, 1)) {
return -TARGET_EFAULT;
}
if (arg3 && !lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
ret = -TARGET_EFAULT;
} else {
ret = get_errno(do_sigaction(arg1, act, oact, restorer));
if (oact) {
unlock_user_struct(oact, arg3, 1);
}
}
if (act) {
unlock_user_struct(act, arg2, 0);
}
}
return ret;
#ifdef TARGET_NR_sgetmask
case TARGET_NR_sgetmask:
{
sigset_t cur_set;
abi_ulong target_set;
ret = do_sigprocmask(0, NULL, &cur_set);
if (!ret) {
host_to_target_old_sigset(&target_set, &cur_set);
ret = target_set;
}
}
return ret;
#endif
#ifdef TARGET_NR_ssetmask
case TARGET_NR_ssetmask:
{
sigset_t set, oset;
abi_ulong target_set = arg1;
target_to_host_old_sigset(&set, &target_set);
ret = do_sigprocmask(SIG_SETMASK, &set, &oset);
if (!ret) {
host_to_target_old_sigset(&target_set, &oset);
ret = target_set;
}
}
return ret;
#endif
#ifdef TARGET_NR_sigprocmask
case TARGET_NR_sigprocmask:
{
#if defined(TARGET_ALPHA)
sigset_t set, oldset;
abi_ulong mask;
int how;
switch (arg1) {
case TARGET_SIG_BLOCK:
how = SIG_BLOCK;
break;
case TARGET_SIG_UNBLOCK:
how = SIG_UNBLOCK;
break;
case TARGET_SIG_SETMASK:
how = SIG_SETMASK;
break;
default:
return -TARGET_EINVAL;
}
mask = arg2;
target_to_host_old_sigset(&set, &mask);
ret = do_sigprocmask(how, &set, &oldset);
if (!is_error(ret)) {
host_to_target_old_sigset(&mask, &oldset);
ret = mask;
cpu_env->ir[IR_V0] = 0;
}
#else
sigset_t set, oldset, *set_ptr;
int how;
if (arg2) {
p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1);
if (!p) {
return -TARGET_EFAULT;
}
target_to_host_old_sigset(&set, p);
unlock_user(p, arg2, 0);
set_ptr = &set;
switch (arg1) {
case TARGET_SIG_BLOCK:
how = SIG_BLOCK;
break;
case TARGET_SIG_UNBLOCK:
how = SIG_UNBLOCK;
break;
case TARGET_SIG_SETMASK:
how = SIG_SETMASK;
break;
default:
return -TARGET_EINVAL;
}
} else {
how = 0;
set_ptr = NULL;
}
ret = do_sigprocmask(how, set_ptr, &oldset);
if (!is_error(ret) && arg3) {
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
return -TARGET_EFAULT;
host_to_target_old_sigset(p, &oldset);
unlock_user(p, arg3, sizeof(target_sigset_t));
}
#endif
}
return ret;
#endif
case TARGET_NR_rt_sigprocmask:
{
int how = arg1;
sigset_t set, oldset, *set_ptr;
if (arg4 != sizeof(target_sigset_t)) {
return -TARGET_EINVAL;
}
if (arg2) {
p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1);
if (!p) {
return -TARGET_EFAULT;
}
target_to_host_sigset(&set, p);
unlock_user(p, arg2, 0);
set_ptr = &set;
switch(how) {
case TARGET_SIG_BLOCK:
how = SIG_BLOCK;
break;
case TARGET_SIG_UNBLOCK:
how = SIG_UNBLOCK;
break;
case TARGET_SIG_SETMASK:
how = SIG_SETMASK;
break;
default:
return -TARGET_EINVAL;
}
} else {
how = 0;
set_ptr = NULL;
}
ret = do_sigprocmask(how, set_ptr, &oldset);
if (!is_error(ret) && arg3) {
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
return -TARGET_EFAULT;
host_to_target_sigset(p, &oldset);
unlock_user(p, arg3, sizeof(target_sigset_t));
}
}
return ret;
#ifdef TARGET_NR_sigpending
case TARGET_NR_sigpending:
{
sigset_t set;
ret = get_errno(sigpending(&set));
if (!is_error(ret)) {
if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
return -TARGET_EFAULT;
host_to_target_old_sigset(p, &set);
unlock_user(p, arg1, sizeof(target_sigset_t));
}
}
return ret;
#endif
case TARGET_NR_rt_sigpending:
{
sigset_t set;
* logic and it does it like this because it implements
* NR_sigpending through the same code path, and in that case
* the old_sigset_t is smaller in size.
*/
if (arg2 > sizeof(target_sigset_t)) {
return -TARGET_EINVAL;
}
ret = get_errno(sigpending(&set));
if (!is_error(ret)) {
if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
return -TARGET_EFAULT;
host_to_target_sigset(p, &set);
unlock_user(p, arg1, sizeof(target_sigset_t));
}
}
return ret;
#ifdef TARGET_NR_sigsuspend
case TARGET_NR_sigsuspend:
{
sigset_t *set;
#if defined(TARGET_ALPHA)
TaskState *ts = cpu->opaque;
abi_ulong mask = tswapal(arg1);
set = &ts->sigsuspend_mask;
target_to_host_old_sigset(set, &mask);
#else
ret = process_sigsuspend_mask(&set, arg1, sizeof(target_sigset_t));
if (ret != 0) {
return ret;
}
#endif
ret = get_errno(safe_rt_sigsuspend(set, SIGSET_T_SIZE));
finish_sigsuspend_mask(ret);
}
return ret;
#endif
case TARGET_NR_rt_sigsuspend:
{
sigset_t *set;
ret = process_sigsuspend_mask(&set, arg1, arg2);
if (ret != 0) {
return ret;
}
ret = get_errno(safe_rt_sigsuspend(set, SIGSET_T_SIZE));
finish_sigsuspend_mask(ret);
}
return ret;
#ifdef TARGET_NR_rt_sigtimedwait
case TARGET_NR_rt_sigtimedwait:
{
sigset_t set;
struct timespec uts, *puts;
siginfo_t uinfo;
if (arg4 != sizeof(target_sigset_t)) {
return -TARGET_EINVAL;
}
if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
return -TARGET_EFAULT;
target_to_host_sigset(&set, p);
unlock_user(p, arg1, 0);
if (arg3) {
puts = &uts;
if (target_to_host_timespec(puts, arg3)) {
return -TARGET_EFAULT;
}
} else {
puts = NULL;
}
ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
SIGSET_T_SIZE));
if (!is_error(ret)) {
if (arg2) {
p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
0);
if (!p) {
return -TARGET_EFAULT;
}
host_to_target_siginfo(p, &uinfo);
unlock_user(p, arg2, sizeof(target_siginfo_t));
}
ret = host_to_target_signal(ret);
}
}
return ret;
#endif
#ifdef TARGET_NR_rt_sigtimedwait_time64
case TARGET_NR_rt_sigtimedwait_time64:
{
sigset_t set;
struct timespec uts, *puts;
siginfo_t uinfo;
if (arg4 != sizeof(target_sigset_t)) {
return -TARGET_EINVAL;
}
p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1);
if (!p) {
return -TARGET_EFAULT;
}
target_to_host_sigset(&set, p);
unlock_user(p, arg1, 0);
if (arg3) {
puts = &uts;
if (target_to_host_timespec64(puts, arg3)) {
return -TARGET_EFAULT;
}
} else {
puts = NULL;
}
ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
SIGSET_T_SIZE));
if (!is_error(ret)) {
if (arg2) {
p = lock_user(VERIFY_WRITE, arg2,
sizeof(target_siginfo_t), 0);
if (!p) {
return -TARGET_EFAULT;
}
host_to_target_siginfo(p, &uinfo);
unlock_user(p, arg2, sizeof(target_siginfo_t));
}
ret = host_to_target_signal(ret);
}
}
return ret;
#endif
case TARGET_NR_rt_sigqueueinfo:
{
siginfo_t uinfo;
p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
if (!p) {
return -TARGET_EFAULT;
}
target_to_host_siginfo(&uinfo, p);
unlock_user(p, arg3, 0);
ret = get_errno(sys_rt_sigqueueinfo(arg1, target_to_host_signal(arg2), &uinfo));
}
return ret;
case TARGET_NR_rt_tgsigqueueinfo:
{
siginfo_t uinfo;
p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1);
if (!p) {
return -TARGET_EFAULT;
}
target_to_host_siginfo(&uinfo, p);
unlock_user(p, arg4, 0);
ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, target_to_host_signal(arg3), &uinfo));
}
return ret;
#ifdef TARGET_NR_sigreturn
case TARGET_NR_sigreturn:
if (block_signals()) {
return -QEMU_ERESTARTSYS;
}
return do_sigreturn(cpu_env);
#endif
case TARGET_NR_rt_sigreturn:
if (block_signals()) {
return -QEMU_ERESTARTSYS;
}
return do_rt_sigreturn(cpu_env);
case TARGET_NR_sethostname:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(sethostname(p, arg2));
unlock_user(p, arg1, 0);
return ret;
#ifdef TARGET_NR_setrlimit
case TARGET_NR_setrlimit:
{
int resource = target_to_host_resource(arg1);
struct target_rlimit *target_rlim;
struct rlimit rlim;
if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
return -TARGET_EFAULT;
rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
unlock_user_struct(target_rlim, arg2, 0);
* If we just passed through resource limit settings for memory then
* they would also apply to QEMU's own allocations, and QEMU will
* crash or hang or die if its allocations fail. Ideally we would
* track the guest allocations in QEMU and apply the limits ourselves.
* For now, just tell the guest the call succeeded but don't actually
* limit anything.
*/
if (resource != RLIMIT_AS &&
resource != RLIMIT_DATA &&
resource != RLIMIT_STACK) {
return get_errno(setrlimit(resource, &rlim));
} else {
return 0;
}
}
#endif
#ifdef TARGET_NR_getrlimit
case TARGET_NR_getrlimit:
{
int resource = target_to_host_resource(arg1);
struct target_rlimit *target_rlim;
struct rlimit rlim;
ret = get_errno(getrlimit(resource, &rlim));
if (!is_error(ret)) {
if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
return -TARGET_EFAULT;
target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
unlock_user_struct(target_rlim, arg2, 1);
}
}
return ret;
#endif
case TARGET_NR_getrusage:
{
struct rusage rusage;
ret = get_errno(getrusage(arg1, &rusage));
if (!is_error(ret)) {
ret = host_to_target_rusage(arg2, &rusage);
}
}
return ret;
#if defined(TARGET_NR_gettimeofday)
case TARGET_NR_gettimeofday:
{
struct timeval tv;
struct timezone tz;
ret = get_errno(gettimeofday(&tv, &tz));
if (!is_error(ret)) {
if (arg1 && copy_to_user_timeval(arg1, &tv)) {
return -TARGET_EFAULT;
}
if (arg2 && copy_to_user_timezone(arg2, &tz)) {
return -TARGET_EFAULT;
}
}
}
return ret;
#endif
#if defined(TARGET_NR_settimeofday)
case TARGET_NR_settimeofday:
{
struct timeval tv, *ptv = NULL;
struct timezone tz, *ptz = NULL;
if (arg1) {
if (copy_from_user_timeval(&tv, arg1)) {
return -TARGET_EFAULT;
}
ptv = &tv;
}
if (arg2) {
if (copy_from_user_timezone(&tz, arg2)) {
return -TARGET_EFAULT;
}
ptz = &tz;
}
return get_errno(settimeofday(ptv, ptz));
}
#endif
#if defined(TARGET_NR_select)
case TARGET_NR_select:
#if defined(TARGET_WANT_NI_OLD_SELECT)
* but now ENOSYS it.
*/
ret = -TARGET_ENOSYS;
#elif defined(TARGET_WANT_OLD_SYS_SELECT)
ret = do_old_select(arg1);
#else
ret = do_select(arg1, arg2, arg3, arg4, arg5);
#endif
return ret;
#endif
#ifdef TARGET_NR_pselect6
case TARGET_NR_pselect6:
return do_pselect6(arg1, arg2, arg3, arg4, arg5, arg6, false);
#endif
#ifdef TARGET_NR_pselect6_time64
case TARGET_NR_pselect6_time64:
return do_pselect6(arg1, arg2, arg3, arg4, arg5, arg6, true);
#endif
#ifdef TARGET_NR_symlink
case TARGET_NR_symlink:
{
void *p2;
p = lock_user_string(arg1);
p2 = lock_user_string(arg2);
if (!p || !p2)
ret = -TARGET_EFAULT;
else
ret = get_errno(symlink(p, p2));
unlock_user(p2, arg2, 0);
unlock_user(p, arg1, 0);
}
return ret;
#endif
#if defined(TARGET_NR_symlinkat)
case TARGET_NR_symlinkat:
{
void *p2;
p = lock_user_string(arg1);
p2 = lock_user_string(arg3);
if (!p || !p2)
ret = -TARGET_EFAULT;
else
ret = get_errno(symlinkat(p, arg2, p2));
unlock_user(p2, arg3, 0);
unlock_user(p, arg1, 0);
}
return ret;
#endif
#ifdef TARGET_NR_readlink
case TARGET_NR_readlink:
{
void *p2;
p = lock_user_string(arg1);
p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
ret = get_errno(do_guest_readlink(p, p2, arg3));
unlock_user(p2, arg2, ret);
unlock_user(p, arg1, 0);
}
return ret;
#endif
#if defined(TARGET_NR_readlinkat)
case TARGET_NR_readlinkat:
{
void *p2;
p = lock_user_string(arg2);
p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
if (!p || !p2) {
ret = -TARGET_EFAULT;
} else if (!arg4) {
ret = -TARGET_EINVAL;
} else if (is_proc_myself((const char *)p, "exe")) {
* Don't worry about sign mismatch as earlier mapping
* logic would have thrown a bad address error.
*/
ret = MIN(strlen(exec_path), arg4);
memcpy(p2, exec_path, ret);
} else {
ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
}
unlock_user(p2, arg3, ret);
unlock_user(p, arg2, 0);
}
return ret;
#endif
#ifdef TARGET_NR_swapon
case TARGET_NR_swapon:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(swapon(p, arg2));
unlock_user(p, arg1, 0);
return ret;
#endif
case TARGET_NR_reboot:
if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
p = lock_user_string(arg4);
if (!p) {
return -TARGET_EFAULT;
}
ret = get_errno(reboot(arg1, arg2, arg3, p));
unlock_user(p, arg4, 0);
} else {
ret = get_errno(reboot(arg1, arg2, arg3, NULL));
}
return ret;
#ifdef TARGET_NR_mmap
case TARGET_NR_mmap:
#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
(defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
|| defined(TARGET_S390X)
{
abi_ulong *v;
abi_ulong v1, v2, v3, v4, v5, v6;
if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
return -TARGET_EFAULT;
v1 = tswapal(v[0]);
v2 = tswapal(v[1]);
v3 = tswapal(v[2]);
v4 = tswapal(v[3]);
v5 = tswapal(v[4]);
v6 = tswapal(v[5]);
unlock_user(v, arg1, 0);
return do_mmap(v1, v2, v3, v4, v5, v6);
}
#else
return do_mmap(arg1, arg2, arg3, arg4, arg5, arg6);
#endif
#endif
#ifdef TARGET_NR_mmap2
case TARGET_NR_mmap2:
#ifndef MMAP_SHIFT
#define MMAP_SHIFT 12
#endif
return do_mmap(arg1, arg2, arg3, arg4, arg5,
(off_t)(abi_ulong)arg6 << MMAP_SHIFT);
#endif
case TARGET_NR_munmap:
arg1 = cpu_untagged_addr(cpu, arg1);
return get_errno(target_munmap(arg1, arg2));
case TARGET_NR_mprotect:
arg1 = cpu_untagged_addr(cpu, arg1);
{
TaskState *ts = cpu->opaque;
if ((arg3 & PROT_GROWSDOWN)
&& arg1 >= ts->info->stack_limit
&& arg1 <= ts->info->start_stack) {
arg3 &= ~PROT_GROWSDOWN;
arg2 = arg2 + arg1 - ts->info->stack_limit;
arg1 = ts->info->stack_limit;
}
}
return get_errno(target_mprotect(arg1, arg2, arg3));
#ifdef TARGET_NR_mremap
case TARGET_NR_mremap:
arg1 = cpu_untagged_addr(cpu, arg1);
return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
#endif
#ifdef TARGET_NR_msync
case TARGET_NR_msync:
return get_errno(msync(g2h(cpu, arg1), arg2,
target_to_host_msync_arg(arg3)));
#endif
#ifdef TARGET_NR_mlock
case TARGET_NR_mlock:
return get_errno(mlock(g2h(cpu, arg1), arg2));
#endif
#ifdef TARGET_NR_munlock
case TARGET_NR_munlock:
return get_errno(munlock(g2h(cpu, arg1), arg2));
#endif
#ifdef TARGET_NR_mlockall
case TARGET_NR_mlockall:
return get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
#endif
#ifdef TARGET_NR_munlockall
case TARGET_NR_munlockall:
return get_errno(munlockall());
#endif
#ifdef TARGET_NR_truncate
case TARGET_NR_truncate:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(truncate(p, arg2));
unlock_user(p, arg1, 0);
return ret;
#endif
#ifdef TARGET_NR_ftruncate
case TARGET_NR_ftruncate:
return get_errno(ftruncate(arg1, arg2));
#endif
case TARGET_NR_fchmod:
return get_errno(fchmod(arg1, arg2));
#if defined(TARGET_NR_fchmodat)
case TARGET_NR_fchmodat:
if (!(p = lock_user_string(arg2)))
return -TARGET_EFAULT;
ret = get_errno(fchmodat(arg1, p, arg3, 0));
unlock_user(p, arg2, 0);
return ret;
#endif
case TARGET_NR_getpriority:
differentiate based on errno settings. */
errno = 0;
ret = getpriority(arg1, arg2);
if (ret == -1 && errno != 0) {
return -host_to_target_errno(errno);
}
#ifdef TARGET_ALPHA
cpu_env->ir[IR_V0] = 0;
#else
ret = 20 - ret;
#endif
return ret;
case TARGET_NR_setpriority:
return get_errno(setpriority(arg1, arg2, arg3));
#ifdef TARGET_NR_statfs
case TARGET_NR_statfs:
if (!(p = lock_user_string(arg1))) {
return -TARGET_EFAULT;
}
ret = get_errno(statfs(path(p), &stfs));
unlock_user(p, arg1, 0);
convert_statfs:
if (!is_error(ret)) {
struct target_statfs *target_stfs;
if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
return -TARGET_EFAULT;
__put_user(stfs.f_type, &target_stfs->f_type);
__put_user(stfs.f_bsize, &target_stfs->f_bsize);
__put_user(stfs.f_blocks, &target_stfs->f_blocks);
__put_user(stfs.f_bfree, &target_stfs->f_bfree);
__put_user(stfs.f_bavail, &target_stfs->f_bavail);
__put_user(stfs.f_files, &target_stfs->f_files);
__put_user(stfs.f_ffree, &target_stfs->f_ffree);
__put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
__put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
__put_user(stfs.f_namelen, &target_stfs->f_namelen);
__put_user(stfs.f_frsize, &target_stfs->f_frsize);
#ifdef _STATFS_F_FLAGS
__put_user(stfs.f_flags, &target_stfs->f_flags);
#else
__put_user(0, &target_stfs->f_flags);
#endif
memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
unlock_user_struct(target_stfs, arg2, 1);
}
return ret;
#endif
#ifdef TARGET_NR_fstatfs
case TARGET_NR_fstatfs:
ret = get_errno(fstatfs(arg1, &stfs));
goto convert_statfs;
#endif
#ifdef TARGET_NR_statfs64
case TARGET_NR_statfs64:
if (!(p = lock_user_string(arg1))) {
return -TARGET_EFAULT;
}
ret = get_errno(statfs(path(p), &stfs));
unlock_user(p, arg1, 0);
convert_statfs64:
if (!is_error(ret)) {
struct target_statfs64 *target_stfs;
if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
return -TARGET_EFAULT;
__put_user(stfs.f_type, &target_stfs->f_type);
__put_user(stfs.f_bsize, &target_stfs->f_bsize);
__put_user(stfs.f_blocks, &target_stfs->f_blocks);
__put_user(stfs.f_bfree, &target_stfs->f_bfree);
__put_user(stfs.f_bavail, &target_stfs->f_bavail);
__put_user(stfs.f_files, &target_stfs->f_files);
__put_user(stfs.f_ffree, &target_stfs->f_ffree);
__put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
__put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
__put_user(stfs.f_namelen, &target_stfs->f_namelen);
__put_user(stfs.f_frsize, &target_stfs->f_frsize);
#ifdef _STATFS_F_FLAGS
__put_user(stfs.f_flags, &target_stfs->f_flags);
#else
__put_user(0, &target_stfs->f_flags);
#endif
memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
unlock_user_struct(target_stfs, arg3, 1);
}
return ret;
case TARGET_NR_fstatfs64:
ret = get_errno(fstatfs(arg1, &stfs));
goto convert_statfs64;
#endif
#ifdef TARGET_NR_socketcall
case TARGET_NR_socketcall:
return do_socketcall(arg1, arg2);
#endif
#ifdef TARGET_NR_accept
case TARGET_NR_accept:
return do_accept4(arg1, arg2, arg3, 0);
#endif
#ifdef TARGET_NR_accept4
case TARGET_NR_accept4:
return do_accept4(arg1, arg2, arg3, arg4);
#endif
#ifdef TARGET_NR_bind
case TARGET_NR_bind:
return do_bind(arg1, arg2, arg3);
#endif
#ifdef TARGET_NR_connect
case TARGET_NR_connect:
return do_connect(arg1, arg2, arg3);
#endif
#ifdef TARGET_NR_getpeername
case TARGET_NR_getpeername:
return do_getpeername(arg1, arg2, arg3);
#endif
#ifdef TARGET_NR_getsockname
case TARGET_NR_getsockname:
return do_getsockname(arg1, arg2, arg3);
#endif
#ifdef TARGET_NR_getsockopt
case TARGET_NR_getsockopt:
return do_getsockopt(arg1, arg2, arg3, arg4, arg5);
#endif
#ifdef TARGET_NR_listen
case TARGET_NR_listen:
return get_errno(listen(arg1, arg2));
#endif
#ifdef TARGET_NR_recv
case TARGET_NR_recv:
return do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
#endif
#ifdef TARGET_NR_recvfrom
case TARGET_NR_recvfrom:
return do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
#endif
#ifdef TARGET_NR_recvmsg
case TARGET_NR_recvmsg:
return do_sendrecvmsg(arg1, arg2, arg3, 0);
#endif
#ifdef TARGET_NR_send
case TARGET_NR_send:
return do_sendto(arg1, arg2, arg3, arg4, 0, 0);
#endif
#ifdef TARGET_NR_sendmsg
case TARGET_NR_sendmsg:
return do_sendrecvmsg(arg1, arg2, arg3, 1);
#endif
#ifdef TARGET_NR_sendmmsg
case TARGET_NR_sendmmsg:
return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
#endif
#ifdef TARGET_NR_recvmmsg
case TARGET_NR_recvmmsg:
return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
#endif
#ifdef TARGET_NR_sendto
case TARGET_NR_sendto:
return do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
#endif
#ifdef TARGET_NR_shutdown
case TARGET_NR_shutdown:
return get_errno(shutdown(arg1, arg2));
#endif
#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
case TARGET_NR_getrandom:
p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
if (!p) {
return -TARGET_EFAULT;
}
ret = get_errno(getrandom(p, arg2, arg3));
unlock_user(p, arg1, ret);
return ret;
#endif
#ifdef TARGET_NR_socket
case TARGET_NR_socket:
return do_socket(arg1, arg2, arg3);
#endif
#ifdef TARGET_NR_socketpair
case TARGET_NR_socketpair:
return do_socketpair(arg1, arg2, arg3, arg4);
#endif
#ifdef TARGET_NR_setsockopt
case TARGET_NR_setsockopt:
return do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
#endif
#if defined(TARGET_NR_syslog)
case TARGET_NR_syslog:
{
int len = arg2;
switch (arg1) {
case TARGET_SYSLOG_ACTION_CLOSE:
case TARGET_SYSLOG_ACTION_OPEN:
case TARGET_SYSLOG_ACTION_CLEAR:
case TARGET_SYSLOG_ACTION_CONSOLE_OFF:
case TARGET_SYSLOG_ACTION_CONSOLE_ON:
case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL:
case TARGET_SYSLOG_ACTION_SIZE_UNREAD:
case TARGET_SYSLOG_ACTION_SIZE_BUFFER:
return get_errno(sys_syslog((int)arg1, NULL, (int)arg3));
case TARGET_SYSLOG_ACTION_READ:
case TARGET_SYSLOG_ACTION_READ_CLEAR:
case TARGET_SYSLOG_ACTION_READ_ALL:
{
if (len < 0) {
return -TARGET_EINVAL;
}
if (len == 0) {
return 0;
}
p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
if (!p) {
return -TARGET_EFAULT;
}
ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
unlock_user(p, arg2, arg3);
}
return ret;
default:
return -TARGET_EINVAL;
}
}
break;
#endif
case TARGET_NR_setitimer:
{
struct itimerval value, ovalue, *pvalue;
if (arg2) {
pvalue = &value;
if (copy_from_user_timeval(&pvalue->it_interval, arg2)
|| copy_from_user_timeval(&pvalue->it_value,
arg2 + sizeof(struct target_timeval)))
return -TARGET_EFAULT;
} else {
pvalue = NULL;
}
ret = get_errno(setitimer(arg1, pvalue, &ovalue));
if (!is_error(ret) && arg3) {
if (copy_to_user_timeval(arg3,
&ovalue.it_interval)
|| copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
&ovalue.it_value))
return -TARGET_EFAULT;
}
}
return ret;
case TARGET_NR_getitimer:
{
struct itimerval value;
ret = get_errno(getitimer(arg1, &value));
if (!is_error(ret) && arg2) {
if (copy_to_user_timeval(arg2,
&value.it_interval)
|| copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
&value.it_value))
return -TARGET_EFAULT;
}
}
return ret;
#ifdef TARGET_NR_stat
case TARGET_NR_stat:
if (!(p = lock_user_string(arg1))) {
return -TARGET_EFAULT;
}
ret = get_errno(stat(path(p), &st));
unlock_user(p, arg1, 0);
goto do_stat;
#endif
#ifdef TARGET_NR_lstat
case TARGET_NR_lstat:
if (!(p = lock_user_string(arg1))) {
return -TARGET_EFAULT;
}
ret = get_errno(lstat(path(p), &st));
unlock_user(p, arg1, 0);
goto do_stat;
#endif
#ifdef TARGET_NR_fstat
case TARGET_NR_fstat:
{
ret = get_errno(fstat(arg1, &st));
#if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat)
do_stat:
#endif
if (!is_error(ret)) {
struct target_stat *target_st;
if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
return -TARGET_EFAULT;
memset(target_st, 0, sizeof(*target_st));
__put_user(st.st_dev, &target_st->st_dev);
__put_user(st.st_ino, &target_st->st_ino);
__put_user(st.st_mode, &target_st->st_mode);
__put_user(st.st_uid, &target_st->st_uid);
__put_user(st.st_gid, &target_st->st_gid);
__put_user(st.st_nlink, &target_st->st_nlink);
__put_user(st.st_rdev, &target_st->st_rdev);
__put_user(st.st_size, &target_st->st_size);
__put_user(st.st_blksize, &target_st->st_blksize);
__put_user(st.st_blocks, &target_st->st_blocks);
__put_user(st.st_atime, &target_st->target_st_atime);
__put_user(st.st_mtime, &target_st->target_st_mtime);
__put_user(st.st_ctime, &target_st->target_st_ctime);
#if defined(HAVE_STRUCT_STAT_ST_ATIM) && defined(TARGET_STAT_HAVE_NSEC)
__put_user(st.st_atim.tv_nsec,
&target_st->target_st_atime_nsec);
__put_user(st.st_mtim.tv_nsec,
&target_st->target_st_mtime_nsec);
__put_user(st.st_ctim.tv_nsec,
&target_st->target_st_ctime_nsec);
#endif
unlock_user_struct(target_st, arg2, 1);
}
}
return ret;
#endif
case TARGET_NR_vhangup:
return get_errno(vhangup());
#ifdef TARGET_NR_syscall
case TARGET_NR_syscall:
return do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
arg6, arg7, arg8, 0);
#endif
#if defined(TARGET_NR_wait4)
case TARGET_NR_wait4:
{
int status;
abi_long status_ptr = arg2;
struct rusage rusage, *rusage_ptr;
abi_ulong target_rusage = arg4;
abi_long rusage_err;
if (target_rusage)
rusage_ptr = &rusage;
else
rusage_ptr = NULL;
ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr));
if (!is_error(ret)) {
if (status_ptr && ret) {
status = host_to_target_waitstatus(status);
if (put_user_s32(status, status_ptr))
return -TARGET_EFAULT;
}
if (target_rusage) {
rusage_err = host_to_target_rusage(target_rusage, &rusage);
if (rusage_err) {
ret = rusage_err;
}
}
}
}
return ret;
#endif
#ifdef TARGET_NR_swapoff
case TARGET_NR_swapoff:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(swapoff(p));
unlock_user(p, arg1, 0);
return ret;
#endif
case TARGET_NR_sysinfo:
{
struct target_sysinfo *target_value;
struct sysinfo value;
ret = get_errno(sysinfo(&value));
if (!is_error(ret) && arg1)
{
if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
return -TARGET_EFAULT;
__put_user(value.uptime, &target_value->uptime);
__put_user(value.loads[0], &target_value->loads[0]);
__put_user(value.loads[1], &target_value->loads[1]);
__put_user(value.loads[2], &target_value->loads[2]);
__put_user(value.totalram, &target_value->totalram);
__put_user(value.freeram, &target_value->freeram);
__put_user(value.sharedram, &target_value->sharedram);
__put_user(value.bufferram, &target_value->bufferram);
__put_user(value.totalswap, &target_value->totalswap);
__put_user(value.freeswap, &target_value->freeswap);
__put_user(value.procs, &target_value->procs);
__put_user(value.totalhigh, &target_value->totalhigh);
__put_user(value.freehigh, &target_value->freehigh);
__put_user(value.mem_unit, &target_value->mem_unit);
unlock_user_struct(target_value, arg1, 1);
}
}
return ret;
#ifdef TARGET_NR_ipc
case TARGET_NR_ipc:
return do_ipc(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
#endif
#ifdef TARGET_NR_semget
case TARGET_NR_semget:
return get_errno(semget(arg1, arg2, arg3));
#endif
#ifdef TARGET_NR_semop
case TARGET_NR_semop:
return do_semtimedop(arg1, arg2, arg3, 0, false);
#endif
#ifdef TARGET_NR_semtimedop
case TARGET_NR_semtimedop:
return do_semtimedop(arg1, arg2, arg3, arg4, false);
#endif
#ifdef TARGET_NR_semtimedop_time64
case TARGET_NR_semtimedop_time64:
return do_semtimedop(arg1, arg2, arg3, arg4, true);
#endif
#ifdef TARGET_NR_semctl
case TARGET_NR_semctl:
return do_semctl(arg1, arg2, arg3, arg4);
#endif
#ifdef TARGET_NR_msgctl
case TARGET_NR_msgctl:
return do_msgctl(arg1, arg2, arg3);
#endif
#ifdef TARGET_NR_msgget
case TARGET_NR_msgget:
return get_errno(msgget(arg1, arg2));
#endif
#ifdef TARGET_NR_msgrcv
case TARGET_NR_msgrcv:
return do_msgrcv(arg1, arg2, arg3, arg4, arg5);
#endif
#ifdef TARGET_NR_msgsnd
case TARGET_NR_msgsnd:
return do_msgsnd(arg1, arg2, arg3, arg4);
#endif
#ifdef TARGET_NR_shmget
case TARGET_NR_shmget:
return get_errno(shmget(arg1, arg2, arg3));
#endif
#ifdef TARGET_NR_shmctl
case TARGET_NR_shmctl:
return do_shmctl(arg1, arg2, arg3);
#endif
#ifdef TARGET_NR_shmat
case TARGET_NR_shmat:
return target_shmat(cpu_env, arg1, arg2, arg3);
#endif
#ifdef TARGET_NR_shmdt
case TARGET_NR_shmdt:
return target_shmdt(arg1);
#endif
case TARGET_NR_fsync:
return get_errno(fsync(arg1));
case TARGET_NR_clone:
* arguments to clone(); the BACKWARDS and BACKWARDS2 defines
* match the kernel's CONFIG_CLONE_* settings.
* Microblaze is further special in that it uses a sixth
* implicit argument to clone for the TLS pointer.
*/
#if defined(TARGET_MICROBLAZE)
ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
#elif defined(TARGET_CLONE_BACKWARDS)
ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
#elif defined(TARGET_CLONE_BACKWARDS2)
ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
#else
ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
#endif
return ret;
#ifdef __NR_exit_group
case TARGET_NR_exit_group:
preexit_cleanup(cpu_env, arg1);
return get_errno(exit_group(arg1));
#endif
case TARGET_NR_setdomainname:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(setdomainname(p, arg2));
unlock_user(p, arg1, 0);
return ret;
case TARGET_NR_uname:
{
struct new_utsname * buf;
if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
return -TARGET_EFAULT;
ret = get_errno(sys_uname(buf));
if (!is_error(ret)) {
emulated. */
g_strlcpy(buf->machine, cpu_to_uname_machine(cpu_env),
sizeof(buf->machine));
if (qemu_uname_release && *qemu_uname_release) {
g_strlcpy(buf->release, qemu_uname_release,
sizeof(buf->release));
}
}
unlock_user_struct(buf, arg1, 1);
}
return ret;
#ifdef TARGET_I386
case TARGET_NR_modify_ldt:
return do_modify_ldt(cpu_env, arg1, arg2, arg3);
#if !defined(TARGET_X86_64)
case TARGET_NR_vm86:
return do_vm86(cpu_env, arg1, arg2);
#endif
#endif
#if defined(TARGET_NR_adjtimex)
case TARGET_NR_adjtimex:
{
struct timex host_buf;
if (target_to_host_timex(&host_buf, arg1) != 0) {
return -TARGET_EFAULT;
}
ret = get_errno(adjtimex(&host_buf));
if (!is_error(ret)) {
if (host_to_target_timex(arg1, &host_buf) != 0) {
return -TARGET_EFAULT;
}
}
}
return ret;
#endif
#if defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME)
case TARGET_NR_clock_adjtime:
{
struct timex htx;
if (target_to_host_timex(&htx, arg2) != 0) {
return -TARGET_EFAULT;
}
ret = get_errno(clock_adjtime(arg1, &htx));
if (!is_error(ret) && host_to_target_timex(arg2, &htx)) {
return -TARGET_EFAULT;
}
}
return ret;
#endif
#if defined(TARGET_NR_clock_adjtime64) && defined(CONFIG_CLOCK_ADJTIME)
case TARGET_NR_clock_adjtime64:
{
struct timex htx;
if (target_to_host_timex64(&htx, arg2) != 0) {
return -TARGET_EFAULT;
}
ret = get_errno(clock_adjtime(arg1, &htx));
if (!is_error(ret) && host_to_target_timex64(arg2, &htx)) {
return -TARGET_EFAULT;
}
}
return ret;
#endif
case TARGET_NR_getpgid:
return get_errno(getpgid(arg1));
case TARGET_NR_fchdir:
return get_errno(fchdir(arg1));
case TARGET_NR_personality:
return get_errno(personality(arg1));
#ifdef TARGET_NR__llseek
case TARGET_NR__llseek:
{
int64_t res;
#if !defined(__NR_llseek)
res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5);
if (res == -1) {
ret = get_errno(res);
} else {
ret = 0;
}
#else
ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
#endif
if ((ret == 0) && put_user_s64(res, arg4)) {
return -TARGET_EFAULT;
}
}
return ret;
#endif
#ifdef TARGET_NR_getdents
case TARGET_NR_getdents:
return do_getdents(arg1, arg2, arg3);
#endif
#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
case TARGET_NR_getdents64:
return do_getdents64(arg1, arg2, arg3);
#endif
#if defined(TARGET_NR__newselect)
case TARGET_NR__newselect:
return do_select(arg1, arg2, arg3, arg4, arg5);
#endif
#ifdef TARGET_NR_poll
case TARGET_NR_poll:
return do_ppoll(arg1, arg2, arg3, arg4, arg5, false, false);
#endif
#ifdef TARGET_NR_ppoll
case TARGET_NR_ppoll:
return do_ppoll(arg1, arg2, arg3, arg4, arg5, true, false);
#endif
#ifdef TARGET_NR_ppoll_time64
case TARGET_NR_ppoll_time64:
return do_ppoll(arg1, arg2, arg3, arg4, arg5, true, true);
#endif
case TARGET_NR_flock:
Linux platform */
return get_errno(safe_flock(arg1, arg2));
case TARGET_NR_readv:
{
struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
if (vec != NULL) {
ret = get_errno(safe_readv(arg1, vec, arg3));
unlock_iovec(vec, arg2, arg3, 1);
} else {
ret = -host_to_target_errno(errno);
}
}
return ret;
case TARGET_NR_writev:
{
struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
if (vec != NULL) {
ret = get_errno(safe_writev(arg1, vec, arg3));
unlock_iovec(vec, arg2, arg3, 0);
} else {
ret = -host_to_target_errno(errno);
}
}
return ret;
#if defined(TARGET_NR_preadv)
case TARGET_NR_preadv:
{
struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
if (vec != NULL) {
unsigned long low, high;
target_to_host_low_high(arg4, arg5, &low, &high);
ret = get_errno(safe_preadv(arg1, vec, arg3, low, high));
unlock_iovec(vec, arg2, arg3, 1);
} else {
ret = -host_to_target_errno(errno);
}
}
return ret;
#endif
#if defined(TARGET_NR_pwritev)
case TARGET_NR_pwritev:
{
struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
if (vec != NULL) {
unsigned long low, high;
target_to_host_low_high(arg4, arg5, &low, &high);
ret = get_errno(safe_pwritev(arg1, vec, arg3, low, high));
unlock_iovec(vec, arg2, arg3, 0);
} else {
ret = -host_to_target_errno(errno);
}
}
return ret;
#endif
case TARGET_NR_getsid:
return get_errno(getsid(arg1));
#if defined(TARGET_NR_fdatasync)
case TARGET_NR_fdatasync:
return get_errno(fdatasync(arg1));
#endif
case TARGET_NR_sched_getaffinity:
{
unsigned int mask_size;
unsigned long *mask;
* sched_getaffinity needs multiples of ulong, so need to take
* care of mismatches between target ulong and host ulong sizes.
*/
if (arg2 & (sizeof(abi_ulong) - 1)) {
return -TARGET_EINVAL;
}
mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
mask = alloca(mask_size);
memset(mask, 0, mask_size);
ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
if (!is_error(ret)) {
if (ret > arg2) {
* This only happens if sizeof(abi_long) < sizeof(long)
* and the caller passed us a buffer holding an odd number
* of abi_longs. If the host kernel is actually using the
* extra 4 bytes then fail EINVAL; otherwise we can just
* ignore them and only copy the interesting part.
*/
int numcpus = sysconf(_SC_NPROCESSORS_CONF);
if (numcpus > arg2 * 8) {
return -TARGET_EINVAL;
}
ret = arg2;
}
if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) {
return -TARGET_EFAULT;
}
}
}
return ret;
case TARGET_NR_sched_setaffinity:
{
unsigned int mask_size;
unsigned long *mask;
* sched_setaffinity needs multiples of ulong, so need to take
* care of mismatches between target ulong and host ulong sizes.
*/
if (arg2 & (sizeof(abi_ulong) - 1)) {
return -TARGET_EINVAL;
}
mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
mask = alloca(mask_size);
ret = target_to_host_cpu_mask(mask, mask_size, arg3, arg2);
if (ret) {
return ret;
}
return get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
}
case TARGET_NR_getcpu:
{
unsigned cpuid, node;
ret = get_errno(sys_getcpu(arg1 ? &cpuid : NULL,
arg2 ? &node : NULL,
NULL));
if (is_error(ret)) {
return ret;
}
if (arg1 && put_user_u32(cpuid, arg1)) {
return -TARGET_EFAULT;
}
if (arg2 && put_user_u32(node, arg2)) {
return -TARGET_EFAULT;
}
}
return ret;
case TARGET_NR_sched_setparam:
{
struct target_sched_param *target_schp;
struct sched_param schp;
if (arg2 == 0) {
return -TARGET_EINVAL;
}
if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) {
return -TARGET_EFAULT;
}
schp.sched_priority = tswap32(target_schp->sched_priority);
unlock_user_struct(target_schp, arg2, 0);
return get_errno(sys_sched_setparam(arg1, &schp));
}
case TARGET_NR_sched_getparam:
{
struct target_sched_param *target_schp;
struct sched_param schp;
if (arg2 == 0) {
return -TARGET_EINVAL;
}
ret = get_errno(sys_sched_getparam(arg1, &schp));
if (!is_error(ret)) {
if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) {
return -TARGET_EFAULT;
}
target_schp->sched_priority = tswap32(schp.sched_priority);
unlock_user_struct(target_schp, arg2, 1);
}
}
return ret;
case TARGET_NR_sched_setscheduler:
{
struct target_sched_param *target_schp;
struct sched_param schp;
if (arg3 == 0) {
return -TARGET_EINVAL;
}
if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) {
return -TARGET_EFAULT;
}
schp.sched_priority = tswap32(target_schp->sched_priority);
unlock_user_struct(target_schp, arg3, 0);
return get_errno(sys_sched_setscheduler(arg1, arg2, &schp));
}
case TARGET_NR_sched_getscheduler:
return get_errno(sys_sched_getscheduler(arg1));
case TARGET_NR_sched_getattr:
{
struct target_sched_attr *target_scha;
struct sched_attr scha;
if (arg2 == 0) {
return -TARGET_EINVAL;
}
if (arg3 > sizeof(scha)) {
arg3 = sizeof(scha);
}
ret = get_errno(sys_sched_getattr(arg1, &scha, arg3, arg4));
if (!is_error(ret)) {
target_scha = lock_user(VERIFY_WRITE, arg2, arg3, 0);
if (!target_scha) {
return -TARGET_EFAULT;
}
target_scha->size = tswap32(scha.size);
target_scha->sched_policy = tswap32(scha.sched_policy);
target_scha->sched_flags = tswap64(scha.sched_flags);
target_scha->sched_nice = tswap32(scha.sched_nice);
target_scha->sched_priority = tswap32(scha.sched_priority);
target_scha->sched_runtime = tswap64(scha.sched_runtime);
target_scha->sched_deadline = tswap64(scha.sched_deadline);
target_scha->sched_period = tswap64(scha.sched_period);
if (scha.size > offsetof(struct sched_attr, sched_util_min)) {
target_scha->sched_util_min = tswap32(scha.sched_util_min);
target_scha->sched_util_max = tswap32(scha.sched_util_max);
}
unlock_user(target_scha, arg2, arg3);
}
return ret;
}
case TARGET_NR_sched_setattr:
{
struct target_sched_attr *target_scha;
struct sched_attr scha;
uint32_t size;
int zeroed;
if (arg2 == 0) {
return -TARGET_EINVAL;
}
if (get_user_u32(size, arg2)) {
return -TARGET_EFAULT;
}
if (!size) {
size = offsetof(struct target_sched_attr, sched_util_min);
}
if (size < offsetof(struct target_sched_attr, sched_util_min)) {
if (put_user_u32(sizeof(struct target_sched_attr), arg2)) {
return -TARGET_EFAULT;
}
return -TARGET_E2BIG;
}
zeroed = check_zeroed_user(arg2, sizeof(struct target_sched_attr), size);
if (zeroed < 0) {
return zeroed;
} else if (zeroed == 0) {
if (put_user_u32(sizeof(struct target_sched_attr), arg2)) {
return -TARGET_EFAULT;
}
return -TARGET_E2BIG;
}
if (size > sizeof(struct target_sched_attr)) {
size = sizeof(struct target_sched_attr);
}
target_scha = lock_user(VERIFY_READ, arg2, size, 1);
if (!target_scha) {
return -TARGET_EFAULT;
}
scha.size = size;
scha.sched_policy = tswap32(target_scha->sched_policy);
scha.sched_flags = tswap64(target_scha->sched_flags);
scha.sched_nice = tswap32(target_scha->sched_nice);
scha.sched_priority = tswap32(target_scha->sched_priority);
scha.sched_runtime = tswap64(target_scha->sched_runtime);
scha.sched_deadline = tswap64(target_scha->sched_deadline);
scha.sched_period = tswap64(target_scha->sched_period);
if (size > offsetof(struct target_sched_attr, sched_util_min)) {
scha.sched_util_min = tswap32(target_scha->sched_util_min);
scha.sched_util_max = tswap32(target_scha->sched_util_max);
}
unlock_user(target_scha, arg2, 0);
return get_errno(sys_sched_setattr(arg1, &scha, arg3));
}
case TARGET_NR_sched_yield:
return get_errno(sched_yield());
case TARGET_NR_sched_get_priority_max:
return get_errno(sched_get_priority_max(arg1));
case TARGET_NR_sched_get_priority_min:
return get_errno(sched_get_priority_min(arg1));
#ifdef TARGET_NR_sched_rr_get_interval
case TARGET_NR_sched_rr_get_interval:
{
struct timespec ts;
ret = get_errno(sched_rr_get_interval(arg1, &ts));
if (!is_error(ret)) {
ret = host_to_target_timespec(arg2, &ts);
}
}
return ret;
#endif
#ifdef TARGET_NR_sched_rr_get_interval_time64
case TARGET_NR_sched_rr_get_interval_time64:
{
struct timespec ts;
ret = get_errno(sched_rr_get_interval(arg1, &ts));
if (!is_error(ret)) {
ret = host_to_target_timespec64(arg2, &ts);
}
}
return ret;
#endif
#if defined(TARGET_NR_nanosleep)
case TARGET_NR_nanosleep:
{
struct timespec req, rem;
target_to_host_timespec(&req, arg1);
ret = get_errno(safe_nanosleep(&req, &rem));
if (is_error(ret) && arg2) {
host_to_target_timespec(arg2, &rem);
}
}
return ret;
#endif
case TARGET_NR_prctl:
return do_prctl(cpu_env, arg1, arg2, arg3, arg4, arg5);
break;
#ifdef TARGET_NR_arch_prctl
case TARGET_NR_arch_prctl:
return do_arch_prctl(cpu_env, arg1, arg2);
#endif
#ifdef TARGET_NR_pread64
case TARGET_NR_pread64:
if (regpairs_aligned(cpu_env, num)) {
arg4 = arg5;
arg5 = arg6;
}
if (arg2 == 0 && arg3 == 0) {
p = 0;
} else {
p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
if (!p) {
return -TARGET_EFAULT;
}
}
ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
unlock_user(p, arg2, ret);
return ret;
case TARGET_NR_pwrite64:
if (regpairs_aligned(cpu_env, num)) {
arg4 = arg5;
arg5 = arg6;
}
if (arg2 == 0 && arg3 == 0) {
p = 0;
} else {
p = lock_user(VERIFY_READ, arg2, arg3, 1);
if (!p) {
return -TARGET_EFAULT;
}
}
ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
unlock_user(p, arg2, 0);
return ret;
#endif
case TARGET_NR_getcwd:
if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
return -TARGET_EFAULT;
ret = get_errno(sys_getcwd1(p, arg2));
unlock_user(p, arg1, ret);
return ret;
case TARGET_NR_capget:
case TARGET_NR_capset:
{
struct target_user_cap_header *target_header;
struct target_user_cap_data *target_data = NULL;
struct __user_cap_header_struct header;
struct __user_cap_data_struct data[2];
struct __user_cap_data_struct *dataptr = NULL;
int i, target_datalen;
int data_items = 1;
if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
return -TARGET_EFAULT;
}
header.version = tswap32(target_header->version);
header.pid = tswap32(target_header->pid);
if (header.version != _LINUX_CAPABILITY_VERSION) {
data_items = 2;
}
target_datalen = sizeof(*target_data) * data_items;
if (arg2) {
if (num == TARGET_NR_capget) {
target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
} else {
target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
}
if (!target_data) {
unlock_user_struct(target_header, arg1, 0);
return -TARGET_EFAULT;
}
if (num == TARGET_NR_capset) {
for (i = 0; i < data_items; i++) {
data[i].effective = tswap32(target_data[i].effective);
data[i].permitted = tswap32(target_data[i].permitted);
data[i].inheritable = tswap32(target_data[i].inheritable);
}
}
dataptr = data;
}
if (num == TARGET_NR_capget) {
ret = get_errno(capget(&header, dataptr));
} else {
ret = get_errno(capset(&header, dataptr));
}
target_header->version = tswap32(header.version);
unlock_user_struct(target_header, arg1, 1);
if (arg2) {
if (num == TARGET_NR_capget) {
for (i = 0; i < data_items; i++) {
target_data[i].effective = tswap32(data[i].effective);
target_data[i].permitted = tswap32(data[i].permitted);
target_data[i].inheritable = tswap32(data[i].inheritable);
}
unlock_user(target_data, arg2, target_datalen);
} else {
unlock_user(target_data, arg2, 0);
}
}
return ret;
}
case TARGET_NR_sigaltstack:
return do_sigaltstack(arg1, arg2, cpu_env);
#ifdef CONFIG_SENDFILE
#ifdef TARGET_NR_sendfile
case TARGET_NR_sendfile:
{
off_t *offp = NULL;
off_t off;
if (arg3) {
ret = get_user_sal(off, arg3);
if (is_error(ret)) {
return ret;
}
offp = &off;
}
ret = get_errno(sendfile(arg1, arg2, offp, arg4));
if (!is_error(ret) && arg3) {
abi_long ret2 = put_user_sal(off, arg3);
if (is_error(ret2)) {
ret = ret2;
}
}
return ret;
}
#endif
#ifdef TARGET_NR_sendfile64
case TARGET_NR_sendfile64:
{
off_t *offp = NULL;
off_t off;
if (arg3) {
ret = get_user_s64(off, arg3);
if (is_error(ret)) {
return ret;
}
offp = &off;
}
ret = get_errno(sendfile(arg1, arg2, offp, arg4));
if (!is_error(ret) && arg3) {
abi_long ret2 = put_user_s64(off, arg3);
if (is_error(ret2)) {
ret = ret2;
}
}
return ret;
}
#endif
#endif
#ifdef TARGET_NR_vfork
case TARGET_NR_vfork:
return get_errno(do_fork(cpu_env,
CLONE_VFORK | CLONE_VM | TARGET_SIGCHLD,
0, 0, 0, 0));
#endif
#ifdef TARGET_NR_ugetrlimit
case TARGET_NR_ugetrlimit:
{
struct rlimit rlim;
int resource = target_to_host_resource(arg1);
ret = get_errno(getrlimit(resource, &rlim));
if (!is_error(ret)) {
struct target_rlimit *target_rlim;
if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
return -TARGET_EFAULT;
target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
unlock_user_struct(target_rlim, arg2, 1);
}
return ret;
}
#endif
#ifdef TARGET_NR_truncate64
case TARGET_NR_truncate64:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
unlock_user(p, arg1, 0);
return ret;
#endif
#ifdef TARGET_NR_ftruncate64
case TARGET_NR_ftruncate64:
return target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
#endif
#ifdef TARGET_NR_stat64
case TARGET_NR_stat64:
if (!(p = lock_user_string(arg1))) {
return -TARGET_EFAULT;
}
ret = get_errno(stat(path(p), &st));
unlock_user(p, arg1, 0);
if (!is_error(ret))
ret = host_to_target_stat64(cpu_env, arg2, &st);
return ret;
#endif
#ifdef TARGET_NR_lstat64
case TARGET_NR_lstat64:
if (!(p = lock_user_string(arg1))) {
return -TARGET_EFAULT;
}
ret = get_errno(lstat(path(p), &st));
unlock_user(p, arg1, 0);
if (!is_error(ret))
ret = host_to_target_stat64(cpu_env, arg2, &st);
return ret;
#endif
#ifdef TARGET_NR_fstat64
case TARGET_NR_fstat64:
ret = get_errno(fstat(arg1, &st));
if (!is_error(ret))
ret = host_to_target_stat64(cpu_env, arg2, &st);
return ret;
#endif
#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
#ifdef TARGET_NR_fstatat64
case TARGET_NR_fstatat64:
#endif
#ifdef TARGET_NR_newfstatat
case TARGET_NR_newfstatat:
#endif
if (!(p = lock_user_string(arg2))) {
return -TARGET_EFAULT;
}
ret = get_errno(fstatat(arg1, path(p), &st, arg4));
unlock_user(p, arg2, 0);
if (!is_error(ret))
ret = host_to_target_stat64(cpu_env, arg3, &st);
return ret;
#endif
#if defined(TARGET_NR_statx)
case TARGET_NR_statx:
{
struct target_statx *target_stx;
int dirfd = arg1;
int flags = arg3;
p = lock_user_string(arg2);
if (p == NULL) {
return -TARGET_EFAULT;
}
#if defined(__NR_statx)
{
* It is assumed that struct statx is architecture independent.
*/
struct target_statx host_stx;
int mask = arg4;
ret = get_errno(sys_statx(dirfd, p, flags, mask, &host_stx));
if (!is_error(ret)) {
if (host_to_target_statx(&host_stx, arg5) != 0) {
unlock_user(p, arg2, 0);
return -TARGET_EFAULT;
}
}
if (ret != -TARGET_ENOSYS) {
unlock_user(p, arg2, 0);
return ret;
}
}
#endif
ret = get_errno(fstatat(dirfd, path(p), &st, flags));
unlock_user(p, arg2, 0);
if (!is_error(ret)) {
if (!lock_user_struct(VERIFY_WRITE, target_stx, arg5, 0)) {
return -TARGET_EFAULT;
}
memset(target_stx, 0, sizeof(*target_stx));
__put_user(major(st.st_dev), &target_stx->stx_dev_major);
__put_user(minor(st.st_dev), &target_stx->stx_dev_minor);
__put_user(st.st_ino, &target_stx->stx_ino);
__put_user(st.st_mode, &target_stx->stx_mode);
__put_user(st.st_uid, &target_stx->stx_uid);
__put_user(st.st_gid, &target_stx->stx_gid);
__put_user(st.st_nlink, &target_stx->stx_nlink);
__put_user(major(st.st_rdev), &target_stx->stx_rdev_major);
__put_user(minor(st.st_rdev), &target_stx->stx_rdev_minor);
__put_user(st.st_size, &target_stx->stx_size);
__put_user(st.st_blksize, &target_stx->stx_blksize);
__put_user(st.st_blocks, &target_stx->stx_blocks);
__put_user(st.st_atime, &target_stx->stx_atime.tv_sec);
__put_user(st.st_mtime, &target_stx->stx_mtime.tv_sec);
__put_user(st.st_ctime, &target_stx->stx_ctime.tv_sec);
unlock_user_struct(target_stx, arg5, 1);
}
}
return ret;
#endif
#ifdef TARGET_NR_lchown
case TARGET_NR_lchown:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
unlock_user(p, arg1, 0);
return ret;
#endif
#ifdef TARGET_NR_getuid
case TARGET_NR_getuid:
return get_errno(high2lowuid(getuid()));
#endif
#ifdef TARGET_NR_getgid
case TARGET_NR_getgid:
return get_errno(high2lowgid(getgid()));
#endif
#ifdef TARGET_NR_geteuid
case TARGET_NR_geteuid:
return get_errno(high2lowuid(geteuid()));
#endif
#ifdef TARGET_NR_getegid
case TARGET_NR_getegid:
return get_errno(high2lowgid(getegid()));
#endif
case TARGET_NR_setreuid:
return get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
case TARGET_NR_setregid:
return get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
case TARGET_NR_getgroups:
{
int gidsetsize = arg1;
target_id *target_grouplist;
g_autofree gid_t *grouplist = NULL;
int i;
if (gidsetsize > NGROUPS_MAX || gidsetsize < 0) {
return -TARGET_EINVAL;
}
if (gidsetsize > 0) {
grouplist = g_try_new(gid_t, gidsetsize);
if (!grouplist) {
return -TARGET_ENOMEM;
}
}
ret = get_errno(getgroups(gidsetsize, grouplist));
if (!is_error(ret) && gidsetsize > 0) {
target_grouplist = lock_user(VERIFY_WRITE, arg2,
gidsetsize * sizeof(target_id), 0);
if (!target_grouplist) {
return -TARGET_EFAULT;
}
for (i = 0; i < ret; i++) {
target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
}
unlock_user(target_grouplist, arg2,
gidsetsize * sizeof(target_id));
}
return ret;
}
case TARGET_NR_setgroups:
{
int gidsetsize = arg1;
target_id *target_grouplist;
g_autofree gid_t *grouplist = NULL;
int i;
if (gidsetsize > NGROUPS_MAX || gidsetsize < 0) {
return -TARGET_EINVAL;
}
if (gidsetsize > 0) {
grouplist = g_try_new(gid_t, gidsetsize);
if (!grouplist) {
return -TARGET_ENOMEM;
}
target_grouplist = lock_user(VERIFY_READ, arg2,
gidsetsize * sizeof(target_id), 1);
if (!target_grouplist) {
return -TARGET_EFAULT;
}
for (i = 0; i < gidsetsize; i++) {
grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
}
unlock_user(target_grouplist, arg2,
gidsetsize * sizeof(target_id));
}
return get_errno(setgroups(gidsetsize, grouplist));
}
case TARGET_NR_fchown:
return get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
#if defined(TARGET_NR_fchownat)
case TARGET_NR_fchownat:
if (!(p = lock_user_string(arg2)))
return -TARGET_EFAULT;
ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
low2highgid(arg4), arg5));
unlock_user(p, arg2, 0);
return ret;
#endif
#ifdef TARGET_NR_setresuid
case TARGET_NR_setresuid:
return get_errno(sys_setresuid(low2highuid(arg1),
low2highuid(arg2),
low2highuid(arg3)));
#endif
#ifdef TARGET_NR_getresuid
case TARGET_NR_getresuid:
{
uid_t ruid, euid, suid;
ret = get_errno(getresuid(&ruid, &euid, &suid));
if (!is_error(ret)) {
if (put_user_id(high2lowuid(ruid), arg1)
|| put_user_id(high2lowuid(euid), arg2)
|| put_user_id(high2lowuid(suid), arg3))
return -TARGET_EFAULT;
}
}
return ret;
#endif
#ifdef TARGET_NR_getresgid
case TARGET_NR_setresgid:
return get_errno(sys_setresgid(low2highgid(arg1),
low2highgid(arg2),
low2highgid(arg3)));
#endif
#ifdef TARGET_NR_getresgid
case TARGET_NR_getresgid:
{
gid_t rgid, egid, sgid;
ret = get_errno(getresgid(&rgid, &egid, &sgid));
if (!is_error(ret)) {
if (put_user_id(high2lowgid(rgid), arg1)
|| put_user_id(high2lowgid(egid), arg2)
|| put_user_id(high2lowgid(sgid), arg3))
return -TARGET_EFAULT;
}
}
return ret;
#endif
#ifdef TARGET_NR_chown
case TARGET_NR_chown:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
unlock_user(p, arg1, 0);
return ret;
#endif
case TARGET_NR_setuid:
return get_errno(sys_setuid(low2highuid(arg1)));
case TARGET_NR_setgid:
return get_errno(sys_setgid(low2highgid(arg1)));
case TARGET_NR_setfsuid:
return get_errno(setfsuid(arg1));
case TARGET_NR_setfsgid:
return get_errno(setfsgid(arg1));
#ifdef TARGET_NR_lchown32
case TARGET_NR_lchown32:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(lchown(p, arg2, arg3));
unlock_user(p, arg1, 0);
return ret;
#endif
#ifdef TARGET_NR_getuid32
case TARGET_NR_getuid32:
return get_errno(getuid());
#endif
#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
case TARGET_NR_getxuid:
{
uid_t euid;
euid=geteuid();
cpu_env->ir[IR_A4]=euid;
}
return get_errno(getuid());
#endif
#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
case TARGET_NR_getxgid:
{
uid_t egid;
egid=getegid();
cpu_env->ir[IR_A4]=egid;
}
return get_errno(getgid());
#endif
#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
case TARGET_NR_osf_getsysinfo:
ret = -TARGET_EOPNOTSUPP;
switch (arg1) {
case TARGET_GSI_IEEE_FP_CONTROL:
{
uint64_t fpcr = cpu_alpha_load_fpcr(cpu_env);
uint64_t swcr = cpu_env->swcr;
swcr &= ~SWCR_STATUS_MASK;
swcr |= (fpcr >> 35) & SWCR_STATUS_MASK;
if (put_user_u64 (swcr, arg2))
return -TARGET_EFAULT;
ret = 0;
}
break;
-- Not implemented in linux kernel.
case GSI_UACPROC:
-- Retrieves current unaligned access state; not much used.
case GSI_PROC_TYPE:
-- Retrieves implver information; surely not used.
case GSI_GET_HWRPB:
-- Grabs a copy of the HWRPB; surely not used.
*/
}
return ret;
#endif
#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
case TARGET_NR_osf_setsysinfo:
ret = -TARGET_EOPNOTSUPP;
switch (arg1) {
case TARGET_SSI_IEEE_FP_CONTROL:
{
uint64_t swcr, fpcr;
if (get_user_u64 (swcr, arg2)) {
return -TARGET_EFAULT;
}
* The kernel calls swcr_update_status to update the
* status bits from the fpcr at every point that it
* could be queried. Therefore, we store the status
* bits only in FPCR.
*/
cpu_env->swcr = swcr & (SWCR_TRAP_ENABLE_MASK | SWCR_MAP_MASK);
fpcr = cpu_alpha_load_fpcr(cpu_env);
fpcr &= ((uint64_t)FPCR_DYN_MASK << 32);
fpcr |= alpha_ieee_swcr_to_fpcr(swcr);
cpu_alpha_store_fpcr(cpu_env, fpcr);
ret = 0;
}
break;
case TARGET_SSI_IEEE_RAISE_EXCEPTION:
{
uint64_t exc, fpcr, fex;
if (get_user_u64(exc, arg2)) {
return -TARGET_EFAULT;
}
exc &= SWCR_STATUS_MASK;
fpcr = cpu_alpha_load_fpcr(cpu_env);
fex = alpha_ieee_fpcr_to_swcr(fpcr);
fex = exc & ~fex;
fex >>= SWCR_STATUS_TO_EXCSUM_SHIFT;
fex &= (cpu_env)->swcr;
fpcr |= alpha_ieee_swcr_to_fpcr(exc);
cpu_alpha_store_fpcr(cpu_env, fpcr);
if (fex) {
int si_code = TARGET_FPE_FLTUNK;
target_siginfo_t info;
if (fex & SWCR_TRAP_ENABLE_DNO) {
si_code = TARGET_FPE_FLTUND;
}
if (fex & SWCR_TRAP_ENABLE_INE) {
si_code = TARGET_FPE_FLTRES;
}
if (fex & SWCR_TRAP_ENABLE_UNF) {
si_code = TARGET_FPE_FLTUND;
}
if (fex & SWCR_TRAP_ENABLE_OVF) {
si_code = TARGET_FPE_FLTOVF;
}
if (fex & SWCR_TRAP_ENABLE_DZE) {
si_code = TARGET_FPE_FLTDIV;
}
if (fex & SWCR_TRAP_ENABLE_INV) {
si_code = TARGET_FPE_FLTINV;
}
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_code = si_code;
info._sifields._sigfault._addr = (cpu_env)->pc;
queue_signal(cpu_env, info.si_signo,
QEMU_SI_FAULT, &info);
}
ret = 0;
}
break;
-- Used with SSIN_UACPROC to enable unaligned accesses.
case SSI_IEEE_STATE_AT_SIGNAL:
case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
-- Not implemented in linux kernel
*/
}
return ret;
#endif
#ifdef TARGET_NR_osf_sigprocmask
case TARGET_NR_osf_sigprocmask:
{
abi_ulong mask;
int how;
sigset_t set, oldset;
switch(arg1) {
case TARGET_SIG_BLOCK:
how = SIG_BLOCK;
break;
case TARGET_SIG_UNBLOCK:
how = SIG_UNBLOCK;
break;
case TARGET_SIG_SETMASK:
how = SIG_SETMASK;
break;
default:
return -TARGET_EINVAL;
}
mask = arg2;
target_to_host_old_sigset(&set, &mask);
ret = do_sigprocmask(how, &set, &oldset);
if (!ret) {
host_to_target_old_sigset(&mask, &oldset);
ret = mask;
}
}
return ret;
#endif
#ifdef TARGET_NR_getgid32
case TARGET_NR_getgid32:
return get_errno(getgid());
#endif
#ifdef TARGET_NR_geteuid32
case TARGET_NR_geteuid32:
return get_errno(geteuid());
#endif
#ifdef TARGET_NR_getegid32
case TARGET_NR_getegid32:
return get_errno(getegid());
#endif
#ifdef TARGET_NR_setreuid32
case TARGET_NR_setreuid32:
return get_errno(setreuid(arg1, arg2));
#endif
#ifdef TARGET_NR_setregid32
case TARGET_NR_setregid32:
return get_errno(setregid(arg1, arg2));
#endif
#ifdef TARGET_NR_getgroups32
case TARGET_NR_getgroups32:
{
int gidsetsize = arg1;
uint32_t *target_grouplist;
g_autofree gid_t *grouplist = NULL;
int i;
if (gidsetsize > NGROUPS_MAX || gidsetsize < 0) {
return -TARGET_EINVAL;
}
if (gidsetsize > 0) {
grouplist = g_try_new(gid_t, gidsetsize);
if (!grouplist) {
return -TARGET_ENOMEM;
}
}
ret = get_errno(getgroups(gidsetsize, grouplist));
if (!is_error(ret) && gidsetsize > 0) {
target_grouplist = lock_user(VERIFY_WRITE, arg2,
gidsetsize * 4, 0);
if (!target_grouplist) {
return -TARGET_EFAULT;
}
for (i = 0; i < ret; i++) {
target_grouplist[i] = tswap32(grouplist[i]);
}
unlock_user(target_grouplist, arg2, gidsetsize * 4);
}
return ret;
}
#endif
#ifdef TARGET_NR_setgroups32
case TARGET_NR_setgroups32:
{
int gidsetsize = arg1;
uint32_t *target_grouplist;
g_autofree gid_t *grouplist = NULL;
int i;
if (gidsetsize > NGROUPS_MAX || gidsetsize < 0) {
return -TARGET_EINVAL;
}
if (gidsetsize > 0) {
grouplist = g_try_new(gid_t, gidsetsize);
if (!grouplist) {
return -TARGET_ENOMEM;
}
target_grouplist = lock_user(VERIFY_READ, arg2,
gidsetsize * 4, 1);
if (!target_grouplist) {
return -TARGET_EFAULT;
}
for (i = 0; i < gidsetsize; i++) {
grouplist[i] = tswap32(target_grouplist[i]);
}
unlock_user(target_grouplist, arg2, 0);
}
return get_errno(setgroups(gidsetsize, grouplist));
}
#endif
#ifdef TARGET_NR_fchown32
case TARGET_NR_fchown32:
return get_errno(fchown(arg1, arg2, arg3));
#endif
#ifdef TARGET_NR_setresuid32
case TARGET_NR_setresuid32:
return get_errno(sys_setresuid(arg1, arg2, arg3));
#endif
#ifdef TARGET_NR_getresuid32
case TARGET_NR_getresuid32:
{
uid_t ruid, euid, suid;
ret = get_errno(getresuid(&ruid, &euid, &suid));
if (!is_error(ret)) {
if (put_user_u32(ruid, arg1)
|| put_user_u32(euid, arg2)
|| put_user_u32(suid, arg3))
return -TARGET_EFAULT;
}
}
return ret;
#endif
#ifdef TARGET_NR_setresgid32
case TARGET_NR_setresgid32:
return get_errno(sys_setresgid(arg1, arg2, arg3));
#endif
#ifdef TARGET_NR_getresgid32
case TARGET_NR_getresgid32:
{
gid_t rgid, egid, sgid;
ret = get_errno(getresgid(&rgid, &egid, &sgid));
if (!is_error(ret)) {
if (put_user_u32(rgid, arg1)
|| put_user_u32(egid, arg2)
|| put_user_u32(sgid, arg3))
return -TARGET_EFAULT;
}
}
return ret;
#endif
#ifdef TARGET_NR_chown32
case TARGET_NR_chown32:
if (!(p = lock_user_string(arg1)))
return -TARGET_EFAULT;
ret = get_errno(chown(p, arg2, arg3));
unlock_user(p, arg1, 0);
return ret;
#endif
#ifdef TARGET_NR_setuid32
case TARGET_NR_setuid32:
return get_errno(sys_setuid(arg1));
#endif
#ifdef TARGET_NR_setgid32
case TARGET_NR_setgid32:
return get_errno(sys_setgid(arg1));
#endif
#ifdef TARGET_NR_setfsuid32
case TARGET_NR_setfsuid32:
return get_errno(setfsuid(arg1));
#endif
#ifdef TARGET_NR_setfsgid32
case TARGET_NR_setfsgid32:
return get_errno(setfsgid(arg1));
#endif
#ifdef TARGET_NR_mincore
case TARGET_NR_mincore:
{
void *a = lock_user(VERIFY_NONE, arg1, arg2, 0);
if (!a) {
return -TARGET_ENOMEM;
}
p = lock_user_string(arg3);
if (!p) {
ret = -TARGET_EFAULT;
} else {
ret = get_errno(mincore(a, arg2, p));
unlock_user(p, arg3, ret);
}
unlock_user(a, arg1, 0);
}
return ret;
#endif
#ifdef TARGET_NR_arm_fadvise64_64
case TARGET_NR_arm_fadvise64_64:
* with different argument order: fd, advice, offset, len
* rather than the usual fd, offset, len, advice.
* Note that offset and len are both 64-bit so appear as
* pairs of 32-bit registers.
*/
ret = posix_fadvise(arg1, target_offset64(arg3, arg4),
target_offset64(arg5, arg6), arg2);
return -host_to_target_errno(ret);
#endif
#if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
#ifdef TARGET_NR_fadvise64_64
case TARGET_NR_fadvise64_64:
#if defined(TARGET_PPC) || defined(TARGET_XTENSA)
ret = arg2;
arg2 = arg3;
arg3 = arg4;
arg4 = arg5;
arg5 = arg6;
arg6 = ret;
#else
if (regpairs_aligned(cpu_env, num)) {
arg2 = arg3;
arg3 = arg4;
arg4 = arg5;
arg5 = arg6;
arg6 = arg7;
}
#endif
ret = posix_fadvise(arg1, target_offset64(arg2, arg3),
target_offset64(arg4, arg5), arg6);
return -host_to_target_errno(ret);
#endif
#ifdef TARGET_NR_fadvise64
case TARGET_NR_fadvise64:
if (regpairs_aligned(cpu_env, num)) {
arg2 = arg3;
arg3 = arg4;
arg4 = arg5;
arg5 = arg6;
}
ret = posix_fadvise(arg1, target_offset64(arg2, arg3), arg4, arg5);
return -host_to_target_errno(ret);
#endif
#else
#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
#ifdef TARGET_NR_fadvise64_64
case TARGET_NR_fadvise64_64:
#endif
#ifdef TARGET_NR_fadvise64
case TARGET_NR_fadvise64:
#endif
#ifdef TARGET_S390X
switch (arg4) {
case 4: arg4 = POSIX_FADV_NOREUSE + 1; break;
case 5: arg4 = POSIX_FADV_NOREUSE + 2; break;
case 6: arg4 = POSIX_FADV_DONTNEED; break;
case 7: arg4 = POSIX_FADV_NOREUSE; break;
default: break;
}
#endif
return -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4));
#endif
#endif
#ifdef TARGET_NR_madvise
case TARGET_NR_madvise:
return target_madvise(arg1, arg2, arg3);
#endif
#ifdef TARGET_NR_fcntl64
case TARGET_NR_fcntl64:
{
int cmd;
struct flock64 fl;
from_flock64_fn *copyfrom = copy_from_user_flock64;
to_flock64_fn *copyto = copy_to_user_flock64;
#ifdef TARGET_ARM
if (!cpu_env->eabi) {
copyfrom = copy_from_user_oabi_flock64;
copyto = copy_to_user_oabi_flock64;
}
#endif
cmd = target_to_host_fcntl_cmd(arg2);
if (cmd == -TARGET_EINVAL) {
return cmd;
}
switch(arg2) {
case TARGET_F_GETLK64:
ret = copyfrom(&fl, arg3);
if (ret) {
break;
}
ret = get_errno(safe_fcntl(arg1, cmd, &fl));
if (ret == 0) {
ret = copyto(arg3, &fl);
}
break;
case TARGET_F_SETLK64:
case TARGET_F_SETLKW64:
ret = copyfrom(&fl, arg3);
if (ret) {
break;
}
ret = get_errno(safe_fcntl(arg1, cmd, &fl));
break;
default:
ret = do_fcntl(arg1, arg2, arg3);
break;
}
return ret;
}
#endif
#ifdef TARGET_NR_cacheflush
case TARGET_NR_cacheflush:
return 0;
#endif
#ifdef TARGET_NR_getpagesize
case TARGET_NR_getpagesize:
return TARGET_PAGE_SIZE;
#endif
case TARGET_NR_gettid:
return get_errno(sys_gettid());
#ifdef TARGET_NR_readahead
case TARGET_NR_readahead:
#if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
if (regpairs_aligned(cpu_env, num)) {
arg2 = arg3;
arg3 = arg4;
arg4 = arg5;
}
ret = get_errno(readahead(arg1, target_offset64(arg2, arg3) , arg4));
#else
ret = get_errno(readahead(arg1, arg2, arg3));
#endif
return ret;
#endif
#ifdef CONFIG_ATTR
#ifdef TARGET_NR_setxattr
case TARGET_NR_listxattr:
case TARGET_NR_llistxattr:
{
void *b = 0;
if (arg2) {
b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
if (!b) {
return -TARGET_EFAULT;
}
}
p = lock_user_string(arg1);
if (p) {
if (num == TARGET_NR_listxattr) {
ret = get_errno(listxattr(p, b, arg3));
} else {
ret = get_errno(llistxattr(p, b, arg3));
}
} else {
ret = -TARGET_EFAULT;
}
unlock_user(p, arg1, 0);
unlock_user(b, arg2, arg3);
return ret;
}
case TARGET_NR_flistxattr:
{
void *b = 0;
if (arg2) {
b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
if (!b) {
return -TARGET_EFAULT;
}
}
ret = get_errno(flistxattr(arg1, b, arg3));
unlock_user(b, arg2, arg3);
return ret;
}
case TARGET_NR_setxattr:
case TARGET_NR_lsetxattr:
{
void *n, *v = 0;
if (arg3) {
v = lock_user(VERIFY_READ, arg3, arg4, 1);
if (!v) {
return -TARGET_EFAULT;
}
}
p = lock_user_string(arg1);
n = lock_user_string(arg2);
if (p && n) {
if (num == TARGET_NR_setxattr) {
ret = get_errno(setxattr(p, n, v, arg4, arg5));
} else {
ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
}
} else {
ret = -TARGET_EFAULT;
}
unlock_user(p, arg1, 0);
unlock_user(n, arg2, 0);
unlock_user(v, arg3, 0);
}
return ret;
case TARGET_NR_fsetxattr:
{
void *n, *v = 0;
if (arg3) {
v = lock_user(VERIFY_READ, arg3, arg4, 1);
if (!v) {
return -TARGET_EFAULT;
}
}
n = lock_user_string(arg2);
if (n) {
ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
} else {
ret = -TARGET_EFAULT;
}
unlock_user(n, arg2, 0);
unlock_user(v, arg3, 0);
}
return ret;
case TARGET_NR_getxattr:
case TARGET_NR_lgetxattr:
{
void *n, *v = 0;
if (arg3) {
v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
if (!v) {
return -TARGET_EFAULT;
}
}
p = lock_user_string(arg1);
n = lock_user_string(arg2);
if (p && n) {
if (num == TARGET_NR_getxattr) {
ret = get_errno(getxattr(p, n, v, arg4));
} else {
ret = get_errno(lgetxattr(p, n, v, arg4));
}
} else {
ret = -TARGET_EFAULT;
}
unlock_user(p, arg1, 0);
unlock_user(n, arg2, 0);
unlock_user(v, arg3, arg4);
}
return ret;
case TARGET_NR_fgetxattr:
{
void *n, *v = 0;
if (arg3) {
v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
if (!v) {
return -TARGET_EFAULT;
}
}
n = lock_user_string(arg2);
if (n) {
ret = get_errno(fgetxattr(arg1, n, v, arg4));
} else {
ret = -TARGET_EFAULT;
}
unlock_user(n, arg2, 0);
unlock_user(v, arg3, arg4);
}
return ret;
case TARGET_NR_removexattr:
case TARGET_NR_lremovexattr:
{
void *n;
p = lock_user_string(arg1);
n = lock_user_string(arg2);
if (p && n) {
if (num == TARGET_NR_removexattr) {
ret = get_errno(removexattr(p, n));
} else {
ret = get_errno(lremovexattr(p, n));
}
} else {
ret = -TARGET_EFAULT;
}
unlock_user(p, arg1, 0);
unlock_user(n, arg2, 0);
}
return ret;
case TARGET_NR_fremovexattr:
{
void *n;
n = lock_user_string(arg2);
if (n) {
ret = get_errno(fremovexattr(arg1, n));
} else {
ret = -TARGET_EFAULT;
}
unlock_user(n, arg2, 0);
}
return ret;
#endif
#endif
#ifdef TARGET_NR_set_thread_area
case TARGET_NR_set_thread_area:
#if defined(TARGET_MIPS)
cpu_env->active_tc.CP0_UserLocal = arg1;
return 0;
#elif defined(TARGET_CRIS)
if (arg1 & 0xff)
ret = -TARGET_EINVAL;
else {
cpu_env->pregs[PR_PID] = arg1;
ret = 0;
}
return ret;
#elif defined(TARGET_I386) && defined(TARGET_ABI32)
return do_set_thread_area(cpu_env, arg1);
#elif defined(TARGET_M68K)
{
TaskState *ts = cpu->opaque;
ts->tp_value = arg1;
return 0;
}
#else
return -TARGET_ENOSYS;
#endif
#endif
#ifdef TARGET_NR_get_thread_area
case TARGET_NR_get_thread_area:
#if defined(TARGET_I386) && defined(TARGET_ABI32)
return do_get_thread_area(cpu_env, arg1);
#elif defined(TARGET_M68K)
{
TaskState *ts = cpu->opaque;
return ts->tp_value;
}
#else
return -TARGET_ENOSYS;
#endif
#endif
#ifdef TARGET_NR_getdomainname
case TARGET_NR_getdomainname:
return -TARGET_ENOSYS;
#endif
#ifdef TARGET_NR_clock_settime
case TARGET_NR_clock_settime:
{
struct timespec ts;
ret = target_to_host_timespec(&ts, arg2);
if (!is_error(ret)) {
ret = get_errno(clock_settime(arg1, &ts));
}
return ret;
}
#endif
#ifdef TARGET_NR_clock_settime64
case TARGET_NR_clock_settime64:
{
struct timespec ts;
ret = target_to_host_timespec64(&ts, arg2);
if (!is_error(ret)) {
ret = get_errno(clock_settime(arg1, &ts));
}
return ret;
}
#endif
#ifdef TARGET_NR_clock_gettime
case TARGET_NR_clock_gettime:
{
struct timespec ts;
ret = get_errno(clock_gettime(arg1, &ts));
if (!is_error(ret)) {
ret = host_to_target_timespec(arg2, &ts);
}
return ret;
}
#endif
#ifdef TARGET_NR_clock_gettime64
case TARGET_NR_clock_gettime64:
{
struct timespec ts;
ret = get_errno(clock_gettime(arg1, &ts));
if (!is_error(ret)) {
ret = host_to_target_timespec64(arg2, &ts);
}
return ret;
}
#endif
#ifdef TARGET_NR_clock_getres
case TARGET_NR_clock_getres:
{
struct timespec ts;
ret = get_errno(clock_getres(arg1, &ts));
if (!is_error(ret)) {
host_to_target_timespec(arg2, &ts);
}
return ret;
}
#endif
#ifdef TARGET_NR_clock_getres_time64
case TARGET_NR_clock_getres_time64:
{
struct timespec ts;
ret = get_errno(clock_getres(arg1, &ts));
if (!is_error(ret)) {
host_to_target_timespec64(arg2, &ts);
}
return ret;
}
#endif
#ifdef TARGET_NR_clock_nanosleep
case TARGET_NR_clock_nanosleep:
{
struct timespec ts;
if (target_to_host_timespec(&ts, arg3)) {
return -TARGET_EFAULT;
}
ret = get_errno(safe_clock_nanosleep(arg1, arg2,
&ts, arg4 ? &ts : NULL));
* if the call is interrupted by a signal handler, it fails
* with error -TARGET_EINTR and if arg4 is not NULL and arg2 is not
* TIMER_ABSTIME, it returns the remaining unslept time in arg4.
*/
if (ret == -TARGET_EINTR && arg4 && arg2 != TIMER_ABSTIME &&
host_to_target_timespec(arg4, &ts)) {
return -TARGET_EFAULT;
}
return ret;
}
#endif
#ifdef TARGET_NR_clock_nanosleep_time64
case TARGET_NR_clock_nanosleep_time64:
{
struct timespec ts;
if (target_to_host_timespec64(&ts, arg3)) {
return -TARGET_EFAULT;
}
ret = get_errno(safe_clock_nanosleep(arg1, arg2,
&ts, arg4 ? &ts : NULL));
if (ret == -TARGET_EINTR && arg4 && arg2 != TIMER_ABSTIME &&
host_to_target_timespec64(arg4, &ts)) {
return -TARGET_EFAULT;
}
return ret;
}
#endif
#if defined(TARGET_NR_set_tid_address)
case TARGET_NR_set_tid_address:
{
TaskState *ts = cpu->opaque;
ts->child_tidptr = arg1;
return get_errno(sys_gettid());
}
#endif
case TARGET_NR_tkill:
return get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
case TARGET_NR_tgkill:
return get_errno(safe_tgkill((int)arg1, (int)arg2,
target_to_host_signal(arg3)));
#ifdef TARGET_NR_set_robust_list
case TARGET_NR_set_robust_list:
case TARGET_NR_get_robust_list:
* the kernel a pointer to a linked list which is updated by
* userspace after the syscall; the list is walked by the kernel
* when the thread exits. Since the linked list in QEMU guest
* memory isn't a valid linked list for the host and we have
* no way to reliably intercept the thread-death event, we can't
* support these. Silently return ENOSYS so that guest userspace
* falls back to a non-robust futex implementation (which should
* be OK except in the corner case of the guest crashing while
* holding a mutex that is shared with another process via
* shared memory).
*/
return -TARGET_ENOSYS;
#endif
#if defined(TARGET_NR_utimensat)
case TARGET_NR_utimensat:
{
struct timespec *tsp, ts[2];
if (!arg3) {
tsp = NULL;
} else {
if (target_to_host_timespec(ts, arg3)) {
return -TARGET_EFAULT;
}
if (target_to_host_timespec(ts + 1, arg3 +
sizeof(struct target_timespec))) {
return -TARGET_EFAULT;
}
tsp = ts;
}
if (!arg2)
ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
else {
if (!(p = lock_user_string(arg2))) {
return -TARGET_EFAULT;
}
ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
unlock_user(p, arg2, 0);
}
}
return ret;
#endif
#ifdef TARGET_NR_utimensat_time64
case TARGET_NR_utimensat_time64:
{
struct timespec *tsp, ts[2];
if (!arg3) {
tsp = NULL;
} else {
if (target_to_host_timespec64(ts, arg3)) {
return -TARGET_EFAULT;
}
if (target_to_host_timespec64(ts + 1, arg3 +
sizeof(struct target__kernel_timespec))) {
return -TARGET_EFAULT;
}
tsp = ts;
}
if (!arg2)
ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
else {
p = lock_user_string(arg2);
if (!p) {
return -TARGET_EFAULT;
}
ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
unlock_user(p, arg2, 0);
}
}
return ret;
#endif
#ifdef TARGET_NR_futex
case TARGET_NR_futex:
return do_futex(cpu, false, arg1, arg2, arg3, arg4, arg5, arg6);
#endif
#ifdef TARGET_NR_futex_time64
case TARGET_NR_futex_time64:
return do_futex(cpu, true, arg1, arg2, arg3, arg4, arg5, arg6);
#endif
#ifdef CONFIG_INOTIFY
#if defined(TARGET_NR_inotify_init)
case TARGET_NR_inotify_init:
ret = get_errno(inotify_init());
if (ret >= 0) {
fd_trans_register(ret, &target_inotify_trans);
}
return ret;
#endif
#if defined(TARGET_NR_inotify_init1) && defined(CONFIG_INOTIFY1)
case TARGET_NR_inotify_init1:
ret = get_errno(inotify_init1(target_to_host_bitmask(arg1,
fcntl_flags_tbl)));
if (ret >= 0) {
fd_trans_register(ret, &target_inotify_trans);
}
return ret;
#endif
#if defined(TARGET_NR_inotify_add_watch)
case TARGET_NR_inotify_add_watch:
p = lock_user_string(arg2);
ret = get_errno(inotify_add_watch(arg1, path(p), arg3));
unlock_user(p, arg2, 0);
return ret;
#endif
#if defined(TARGET_NR_inotify_rm_watch)
case TARGET_NR_inotify_rm_watch:
return get_errno(inotify_rm_watch(arg1, arg2));
#endif
#endif
#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
case TARGET_NR_mq_open:
{
struct mq_attr posix_mq_attr;
struct mq_attr *pposix_mq_attr;
int host_flags;
host_flags = target_to_host_bitmask(arg2, fcntl_flags_tbl);
pposix_mq_attr = NULL;
if (arg4) {
if (copy_from_user_mq_attr(&posix_mq_attr, arg4) != 0) {
return -TARGET_EFAULT;
}
pposix_mq_attr = &posix_mq_attr;
}
p = lock_user_string(arg1 - 1);
if (!p) {
return -TARGET_EFAULT;
}
ret = get_errno(mq_open(p, host_flags, arg3, pposix_mq_attr));
unlock_user (p, arg1, 0);
}
return ret;
case TARGET_NR_mq_unlink:
p = lock_user_string(arg1 - 1);
if (!p) {
return -TARGET_EFAULT;
}
ret = get_errno(mq_unlink(p));
unlock_user (p, arg1, 0);
return ret;
#ifdef TARGET_NR_mq_timedsend
case TARGET_NR_mq_timedsend:
{
struct timespec ts;
p = lock_user (VERIFY_READ, arg2, arg3, 1);
if (arg5 != 0) {
if (target_to_host_timespec(&ts, arg5)) {
return -TARGET_EFAULT;
}
ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
if (!is_error(ret) && host_to_target_timespec(arg5, &ts)) {
return -TARGET_EFAULT;
}
} else {
ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
}
unlock_user (p, arg2, arg3);
}
return ret;
#endif
#ifdef TARGET_NR_mq_timedsend_time64
case TARGET_NR_mq_timedsend_time64:
{
struct timespec ts;
p = lock_user(VERIFY_READ, arg2, arg3, 1);
if (arg5 != 0) {
if (target_to_host_timespec64(&ts, arg5)) {
return -TARGET_EFAULT;
}
ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
if (!is_error(ret) && host_to_target_timespec64(arg5, &ts)) {
return -TARGET_EFAULT;
}
} else {
ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
}
unlock_user(p, arg2, arg3);
}
return ret;
#endif
#ifdef TARGET_NR_mq_timedreceive
case TARGET_NR_mq_timedreceive:
{
struct timespec ts;
unsigned int prio;
p = lock_user (VERIFY_READ, arg2, arg3, 1);
if (arg5 != 0) {
if (target_to_host_timespec(&ts, arg5)) {
return -TARGET_EFAULT;
}
ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
&prio, &ts));
if (!is_error(ret) && host_to_target_timespec(arg5, &ts)) {
return -TARGET_EFAULT;
}
} else {
ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
&prio, NULL));
}
unlock_user (p, arg2, arg3);
if (arg4 != 0)
put_user_u32(prio, arg4);
}
return ret;
#endif
#ifdef TARGET_NR_mq_timedreceive_time64
case TARGET_NR_mq_timedreceive_time64:
{
struct timespec ts;
unsigned int prio;
p = lock_user(VERIFY_READ, arg2, arg3, 1);
if (arg5 != 0) {
if (target_to_host_timespec64(&ts, arg5)) {
return -TARGET_EFAULT;
}
ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
&prio, &ts));
if (!is_error(ret) && host_to_target_timespec64(arg5, &ts)) {
return -TARGET_EFAULT;
}
} else {
ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
&prio, NULL));
}
unlock_user(p, arg2, arg3);
if (arg4 != 0) {
put_user_u32(prio, arg4);
}
}
return ret;
#endif
case TARGET_NR_mq_getsetattr:
{
struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
ret = 0;
if (arg2 != 0) {
copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
ret = get_errno(mq_setattr(arg1, &posix_mq_attr_in,
&posix_mq_attr_out));
} else if (arg3 != 0) {
ret = get_errno(mq_getattr(arg1, &posix_mq_attr_out));
}
if (ret == 0 && arg3 != 0) {
copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
}
}
return ret;
#endif
#ifdef CONFIG_SPLICE
#ifdef TARGET_NR_tee
case TARGET_NR_tee:
{
ret = get_errno(tee(arg1,arg2,arg3,arg4));
}
return ret;
#endif
#ifdef TARGET_NR_splice
case TARGET_NR_splice:
{
loff_t loff_in, loff_out;
loff_t *ploff_in = NULL, *ploff_out = NULL;
if (arg2) {
if (get_user_u64(loff_in, arg2)) {
return -TARGET_EFAULT;
}
ploff_in = &loff_in;
}
if (arg4) {
if (get_user_u64(loff_out, arg4)) {
return -TARGET_EFAULT;
}
ploff_out = &loff_out;
}
ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
if (arg2) {
if (put_user_u64(loff_in, arg2)) {
return -TARGET_EFAULT;
}
}
if (arg4) {
if (put_user_u64(loff_out, arg4)) {
return -TARGET_EFAULT;
}
}
}
return ret;
#endif
#ifdef TARGET_NR_vmsplice
case TARGET_NR_vmsplice:
{
struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
if (vec != NULL) {
ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
unlock_iovec(vec, arg2, arg3, 0);
} else {
ret = -host_to_target_errno(errno);
}
}
return ret;
#endif
#endif
#ifdef CONFIG_EVENTFD
#if defined(TARGET_NR_eventfd)
case TARGET_NR_eventfd:
ret = get_errno(eventfd(arg1, 0));
if (ret >= 0) {
fd_trans_register(ret, &target_eventfd_trans);
}
return ret;
#endif
#if defined(TARGET_NR_eventfd2)
case TARGET_NR_eventfd2:
{
int host_flags = arg2 & (~(TARGET_O_NONBLOCK_MASK | TARGET_O_CLOEXEC));
if (arg2 & TARGET_O_NONBLOCK) {
host_flags |= O_NONBLOCK;
}
if (arg2 & TARGET_O_CLOEXEC) {
host_flags |= O_CLOEXEC;
}
ret = get_errno(eventfd(arg1, host_flags));
if (ret >= 0) {
fd_trans_register(ret, &target_eventfd_trans);
}
return ret;
}
#endif
#endif
#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
case TARGET_NR_fallocate:
#if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
target_offset64(arg5, arg6)));
#else
ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
#endif
return ret;
#endif
#if defined(CONFIG_SYNC_FILE_RANGE)
#if defined(TARGET_NR_sync_file_range)
case TARGET_NR_sync_file_range:
#if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
#if defined(TARGET_MIPS)
ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
target_offset64(arg5, arg6), arg7));
#else
ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
target_offset64(arg4, arg5), arg6));
#endif
#else
ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
#endif
return ret;
#endif
#if defined(TARGET_NR_sync_file_range2) || \
defined(TARGET_NR_arm_sync_file_range)
#if defined(TARGET_NR_sync_file_range2)
case TARGET_NR_sync_file_range2:
#endif
#if defined(TARGET_NR_arm_sync_file_range)
case TARGET_NR_arm_sync_file_range:
#endif
#if TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32)
ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
target_offset64(arg5, arg6), arg2));
#else
ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
#endif
return ret;
#endif
#endif
#if defined(TARGET_NR_signalfd4)
case TARGET_NR_signalfd4:
return do_signalfd4(arg1, arg2, arg4);
#endif
#if defined(TARGET_NR_signalfd)
case TARGET_NR_signalfd:
return do_signalfd4(arg1, arg2, 0);
#endif
#if defined(CONFIG_EPOLL)
#if defined(TARGET_NR_epoll_create)
case TARGET_NR_epoll_create:
return get_errno(epoll_create(arg1));
#endif
#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
case TARGET_NR_epoll_create1:
return get_errno(epoll_create1(target_to_host_bitmask(arg1, fcntl_flags_tbl)));
#endif
#if defined(TARGET_NR_epoll_ctl)
case TARGET_NR_epoll_ctl:
{
struct epoll_event ep;
struct epoll_event *epp = 0;
if (arg4) {
if (arg2 != EPOLL_CTL_DEL) {
struct target_epoll_event *target_ep;
if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
return -TARGET_EFAULT;
}
ep.events = tswap32(target_ep->events);
* The epoll_data_t union is just opaque data to the kernel,
* so we transfer all 64 bits across and need not worry what
* actual data type it is.
*/
ep.data.u64 = tswap64(target_ep->data.u64);
unlock_user_struct(target_ep, arg4, 0);
}
* before kernel 2.6.9, EPOLL_CTL_DEL operation required a
* non-null pointer, even though this argument is ignored.
*
*/
epp = &ep;
}
return get_errno(epoll_ctl(arg1, arg2, arg3, epp));
}
#endif
#if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait)
#if defined(TARGET_NR_epoll_wait)
case TARGET_NR_epoll_wait:
#endif
#if defined(TARGET_NR_epoll_pwait)
case TARGET_NR_epoll_pwait:
#endif
{
struct target_epoll_event *target_ep;
struct epoll_event *ep;
int epfd = arg1;
int maxevents = arg3;
int timeout = arg4;
if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) {
return -TARGET_EINVAL;
}
target_ep = lock_user(VERIFY_WRITE, arg2,
maxevents * sizeof(struct target_epoll_event), 1);
if (!target_ep) {
return -TARGET_EFAULT;
}
ep = g_try_new(struct epoll_event, maxevents);
if (!ep) {
unlock_user(target_ep, arg2, 0);
return -TARGET_ENOMEM;
}
switch (num) {
#if defined(TARGET_NR_epoll_pwait)
case TARGET_NR_epoll_pwait:
{
sigset_t *set = NULL;
if (arg5) {
ret = process_sigsuspend_mask(&set, arg5, arg6);
if (ret != 0) {
break;
}
}
ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
set, SIGSET_T_SIZE));
if (set) {
finish_sigsuspend_mask(ret);
}
break;
}
#endif
#if defined(TARGET_NR_epoll_wait)
case TARGET_NR_epoll_wait:
ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
NULL, 0));
break;
#endif
default:
ret = -TARGET_ENOSYS;
}
if (!is_error(ret)) {
int i;
for (i = 0; i < ret; i++) {
target_ep[i].events = tswap32(ep[i].events);
target_ep[i].data.u64 = tswap64(ep[i].data.u64);
}
unlock_user(target_ep, arg2,
ret * sizeof(struct target_epoll_event));
} else {
unlock_user(target_ep, arg2, 0);
}
g_free(ep);
return ret;
}
#endif
#endif
#ifdef TARGET_NR_prlimit64
case TARGET_NR_prlimit64:
{
struct target_rlimit64 *target_rnew, *target_rold;
struct host_rlimit64 rnew, rold, *rnewp = 0;
int resource = target_to_host_resource(arg2);
if (arg3 && (resource != RLIMIT_AS &&
resource != RLIMIT_DATA &&
resource != RLIMIT_STACK)) {
if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
return -TARGET_EFAULT;
}
__get_user(rnew.rlim_cur, &target_rnew->rlim_cur);
__get_user(rnew.rlim_max, &target_rnew->rlim_max);
unlock_user_struct(target_rnew, arg3, 0);
rnewp = &rnew;
}
ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
if (!is_error(ret) && arg4) {
if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
return -TARGET_EFAULT;
}
__put_user(rold.rlim_cur, &target_rold->rlim_cur);
__put_user(rold.rlim_max, &target_rold->rlim_max);
unlock_user_struct(target_rold, arg4, 1);
}
return ret;
}
#endif
#ifdef TARGET_NR_gethostname
case TARGET_NR_gethostname:
{
char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
if (name) {
ret = get_errno(gethostname(name, arg2));
unlock_user(name, arg1, arg2);
} else {
ret = -TARGET_EFAULT;
}
return ret;
}
#endif
#ifdef TARGET_NR_atomic_cmpxchg_32
case TARGET_NR_atomic_cmpxchg_32:
{
abi_ulong mem_value;
if (get_user_u32(mem_value, arg6)) {
target_siginfo_t info;
info.si_signo = SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
info._sifields._sigfault._addr = arg6;
queue_signal(cpu_env, info.si_signo, QEMU_SI_FAULT, &info);
ret = 0xdeadbeef;
}
if (mem_value == arg2)
put_user_u32(arg1, arg6);
return mem_value;
}
#endif
#ifdef TARGET_NR_atomic_barrier
case TARGET_NR_atomic_barrier:
qemu arm barrier, no-op this? */
return 0;
#endif
#ifdef TARGET_NR_timer_create
case TARGET_NR_timer_create:
{
struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
int clkid = arg1;
int timer_index = next_free_host_timer();
if (timer_index < 0) {
ret = -TARGET_EAGAIN;
} else {
timer_t *phtimer = g_posix_timers + timer_index;
if (arg2) {
phost_sevp = &host_sevp;
ret = target_to_host_sigevent(phost_sevp, arg2);
if (ret != 0) {
free_host_timer_slot(timer_index);
return ret;
}
}
ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
if (ret) {
free_host_timer_slot(timer_index);
} else {
if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) {
timer_delete(*phtimer);
free_host_timer_slot(timer_index);
return -TARGET_EFAULT;
}
}
}
return ret;
}
#endif
#ifdef TARGET_NR_timer_settime
case TARGET_NR_timer_settime:
{
* struct itimerspec * old_value */
target_timer_t timerid = get_timer_id(arg1);
if (timerid < 0) {
ret = timerid;
} else if (arg3 == 0) {
ret = -TARGET_EINVAL;
} else {
timer_t htimer = g_posix_timers[timerid];
struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
if (target_to_host_itimerspec(&hspec_new, arg3)) {
return -TARGET_EFAULT;
}
ret = get_errno(
timer_settime(htimer, arg2, &hspec_new, &hspec_old));
if (arg4 && host_to_target_itimerspec(arg4, &hspec_old)) {
return -TARGET_EFAULT;
}
}
return ret;
}
#endif
#ifdef TARGET_NR_timer_settime64
case TARGET_NR_timer_settime64:
{
target_timer_t timerid = get_timer_id(arg1);
if (timerid < 0) {
ret = timerid;
} else if (arg3 == 0) {
ret = -TARGET_EINVAL;
} else {
timer_t htimer = g_posix_timers[timerid];
struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
if (target_to_host_itimerspec64(&hspec_new, arg3)) {
return -TARGET_EFAULT;
}
ret = get_errno(
timer_settime(htimer, arg2, &hspec_new, &hspec_old));
if (arg4 && host_to_target_itimerspec64(arg4, &hspec_old)) {
return -TARGET_EFAULT;
}
}
return ret;
}
#endif
#ifdef TARGET_NR_timer_gettime
case TARGET_NR_timer_gettime:
{
target_timer_t timerid = get_timer_id(arg1);
if (timerid < 0) {
ret = timerid;
} else if (!arg2) {
ret = -TARGET_EFAULT;
} else {
timer_t htimer = g_posix_timers[timerid];
struct itimerspec hspec;
ret = get_errno(timer_gettime(htimer, &hspec));
if (host_to_target_itimerspec(arg2, &hspec)) {
ret = -TARGET_EFAULT;
}
}
return ret;
}
#endif
#ifdef TARGET_NR_timer_gettime64
case TARGET_NR_timer_gettime64:
{
target_timer_t timerid = get_timer_id(arg1);
if (timerid < 0) {
ret = timerid;
} else if (!arg2) {
ret = -TARGET_EFAULT;
} else {
timer_t htimer = g_posix_timers[timerid];
struct itimerspec hspec;
ret = get_errno(timer_gettime(htimer, &hspec));
if (host_to_target_itimerspec64(arg2, &hspec)) {
ret = -TARGET_EFAULT;
}
}
return ret;
}
#endif
#ifdef TARGET_NR_timer_getoverrun
case TARGET_NR_timer_getoverrun:
{
target_timer_t timerid = get_timer_id(arg1);
if (timerid < 0) {
ret = timerid;
} else {
timer_t htimer = g_posix_timers[timerid];
ret = get_errno(timer_getoverrun(htimer));
}
return ret;
}
#endif
#ifdef TARGET_NR_timer_delete
case TARGET_NR_timer_delete:
{
target_timer_t timerid = get_timer_id(arg1);
if (timerid < 0) {
ret = timerid;
} else {
timer_t htimer = g_posix_timers[timerid];
ret = get_errno(timer_delete(htimer));
free_host_timer_slot(timerid);
}
return ret;
}
#endif
#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
case TARGET_NR_timerfd_create:
ret = get_errno(timerfd_create(arg1,
target_to_host_bitmask(arg2, fcntl_flags_tbl)));
if (ret >= 0) {
fd_trans_register(ret, &target_timerfd_trans);
}
return ret;
#endif
#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
case TARGET_NR_timerfd_gettime:
{
struct itimerspec its_curr;
ret = get_errno(timerfd_gettime(arg1, &its_curr));
if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) {
return -TARGET_EFAULT;
}
}
return ret;
#endif
#if defined(TARGET_NR_timerfd_gettime64) && defined(CONFIG_TIMERFD)
case TARGET_NR_timerfd_gettime64:
{
struct itimerspec its_curr;
ret = get_errno(timerfd_gettime(arg1, &its_curr));
if (arg2 && host_to_target_itimerspec64(arg2, &its_curr)) {
return -TARGET_EFAULT;
}
}
return ret;
#endif
#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
case TARGET_NR_timerfd_settime:
{
struct itimerspec its_new, its_old, *p_new;
if (arg3) {
if (target_to_host_itimerspec(&its_new, arg3)) {
return -TARGET_EFAULT;
}
p_new = &its_new;
} else {
p_new = NULL;
}
ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
if (arg4 && host_to_target_itimerspec(arg4, &its_old)) {
return -TARGET_EFAULT;
}
}
return ret;
#endif
#if defined(TARGET_NR_timerfd_settime64) && defined(CONFIG_TIMERFD)
case TARGET_NR_timerfd_settime64:
{
struct itimerspec its_new, its_old, *p_new;
if (arg3) {
if (target_to_host_itimerspec64(&its_new, arg3)) {
return -TARGET_EFAULT;
}
p_new = &its_new;
} else {
p_new = NULL;
}
ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
if (arg4 && host_to_target_itimerspec64(arg4, &its_old)) {
return -TARGET_EFAULT;
}
}
return ret;
#endif
#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
case TARGET_NR_ioprio_get:
return get_errno(ioprio_get(arg1, arg2));
#endif
#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
case TARGET_NR_ioprio_set:
return get_errno(ioprio_set(arg1, arg2, arg3));
#endif
#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
case TARGET_NR_setns:
return get_errno(setns(arg1, arg2));
#endif
#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
case TARGET_NR_unshare:
return get_errno(unshare(arg1));
#endif
#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
case TARGET_NR_kcmp:
return get_errno(kcmp(arg1, arg2, arg3, arg4, arg5));
#endif
#ifdef TARGET_NR_swapcontext
case TARGET_NR_swapcontext:
return do_swapcontext(cpu_env, arg1, arg2, arg3);
#endif
#ifdef TARGET_NR_memfd_create
case TARGET_NR_memfd_create:
p = lock_user_string(arg1);
if (!p) {
return -TARGET_EFAULT;
}
ret = get_errno(memfd_create(p, arg2));
fd_trans_unregister(ret);
unlock_user(p, arg1, 0);
return ret;
#endif
#if defined TARGET_NR_membarrier && defined __NR_membarrier
case TARGET_NR_membarrier:
return get_errno(membarrier(arg1, arg2));
#endif
#if defined(TARGET_NR_copy_file_range) && defined(__NR_copy_file_range)
case TARGET_NR_copy_file_range:
{
loff_t inoff, outoff;
loff_t *pinoff = NULL, *poutoff = NULL;
if (arg2) {
if (get_user_u64(inoff, arg2)) {
return -TARGET_EFAULT;
}
pinoff = &inoff;
}
if (arg4) {
if (get_user_u64(outoff, arg4)) {
return -TARGET_EFAULT;
}
poutoff = &outoff;
}
ret = get_errno(safe_copy_file_range(arg1, pinoff, arg3, poutoff,
(abi_ulong)arg5, arg6));
if (!is_error(ret) && ret > 0) {
if (arg2) {
if (put_user_u64(inoff, arg2)) {
return -TARGET_EFAULT;
}
}
if (arg4) {
if (put_user_u64(outoff, arg4)) {
return -TARGET_EFAULT;
}
}
}
}
return ret;
#endif
#if defined(TARGET_NR_pivot_root)
case TARGET_NR_pivot_root:
{
void *p2;
p = lock_user_string(arg1);
p2 = lock_user_string(arg2);
if (!p || !p2) {
ret = -TARGET_EFAULT;
} else {
ret = get_errno(pivot_root(p, p2));
}
unlock_user(p2, arg2, 0);
unlock_user(p, arg1, 0);
}
return ret;
#endif
#if defined(TARGET_NR_riscv_hwprobe)
case TARGET_NR_riscv_hwprobe:
return do_riscv_hwprobe(cpu_env, arg1, arg2, arg3, arg4, arg5);
#endif
default:
qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
return -TARGET_ENOSYS;
}
return ret;
}
abi_long do_syscall(CPUArchState *cpu_env, int num, abi_long arg1,
abi_long arg2, abi_long arg3, abi_long arg4,
abi_long arg5, abi_long arg6, abi_long arg7,
abi_long arg8)
{
CPUState *cpu = env_cpu(cpu_env);
abi_long ret;
#ifdef DEBUG_ERESTARTSYS
* in the per-architecture cpu main loops: restart every syscall
* the guest makes once before letting it through.
*/
{
static bool flag;
flag = !flag;
if (flag) {
return -QEMU_ERESTARTSYS;
}
}
#endif
record_syscall_start(cpu, num, arg1,
arg2, arg3, arg4, arg5, arg6, arg7, arg8);
if (unlikely(qemu_loglevel_mask(LOG_STRACE))) {
print_syscall(cpu_env, num, arg1, arg2, arg3, arg4, arg5, arg6);
}
ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
arg5, arg6, arg7, arg8);
if (unlikely(qemu_loglevel_mask(LOG_STRACE))) {
print_syscall_ret(cpu_env, num, ret, arg1, arg2,
arg3, arg4, arg5, arg6);
}
record_syscall_return(cpu, num, ret);
return ret;
}