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bpftool: Fix truncated netlink dumps stable inclusion from stable-v6.6.128 commit 6b6b2fbd66d86f218dc345af57e5f333853d34f0 category: bugfix bugzilla: https://atomgit.com/openeuler/kernel/issues/ Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=6b6b2fbd66d86f218dc345af57e5f333853d34f0 -------------------------------- commit 6b6b2fbd66d86f218dc345af57e5f333853d34f0 upstream. [ Upstream commit 3b39d73cc3379360a33eb583b17f21fe55e1288e ] Netlink requires that the recv buffer used during dumps is at least min(PAGE_SIZE, 8k) (see the man page). Otherwise the messages will get truncated. Make sure bpftool follows this requirement, avoid missing information on systems with large pages. Acked-by: Quentin Monnet <qmo@kernel.org> Fixes: 7084566a236f ("tools/bpftool: Remove libbpf_internal.h usage in bpftool") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20260217194150.734701-1-kuba@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Wang Hai <wanghai38@huawei.com> | 1 个月前 | |
resolve_btfids: Handle presence of .BTF.base section mainline inclusion from mainline-v6.11-rc1 commit 6ba77385f386053cea2a1cad33717de74a26db4e category: feature bugzilla: https://atomgit.com/openeuler/kernel/issues/8335 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6ba77385f386053cea2a1cad33717de74a26db4e ---------------------------------------------------------------------- Now that btf_parse_elf() handles .BTF.base section presence, we need to ensure that resolve_btfids uses .BTF.base when present rather than the vmlinux base BTF passed in via the -B option. Detect .BTF.base section presence and unset the base BTF path to ensure that BTF ELF parsing will do the right thing. Signed-off-by: Alan Maguire <alan.maguire@oracle.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/bpf/20240613095014.357981-7-alan.maguire@oracle.com Signed-off-by: Luo Gengkun <luogengkun2@huawei.com> | 2 个月前 | |
tools/runqslower: Fix LDFLAGS and add LDLIBS support stable inclusion from stable-v6.6.54 commit b0b99c1226eae6950d0e82f201efafef799732f6 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAZ3K2 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b0b99c1226eae6950d0e82f201efafef799732f6 -------------------------------- [ Upstream commit f86601c3661946721e8f260bdd812b759854ac22 ] Actually use previously defined LDFLAGS during build and add support for LDLIBS to link extra standalone libraries e.g. 'argp' which is not provided by musl libc. Fixes: 585bf4640ebe ("tools: runqslower: Add EXTRA_CFLAGS and EXTRA_LDFLAGS support") Signed-off-by: Tony Ambardar <tony.ambardar@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Link: https://lore.kernel.org/bpf/20240723003045.2273499-1-tony.ambardar@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Wen Zhiwei <wenzhiwei@kylinos.cn> | 1 年前 | |
.gitignore: add SPDX License Identifier Add SPDX License Identifier to all .gitignore files. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 6 年前 | |
tools bpf_jit_disasm: Don't display disassembler-four-args feature test The feature check does not seem important enough to display. Suggested-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Andres Freund <andres@anarazel.de> Acked-by: Quentin Monnet <quentin@isovalent.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Ben Hutchings <benh@debian.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Quentin Monnet <quentin@isovalent.com> Cc: Sedat Dilek <sedat.dilek@gmail.com> Cc: bpf@vger.kernel.org Link: http://lore.kernel.org/lkml/20220622181918.ykrs5rsnmx3og4sv@alap3.anarazel.de Link: https://lore.kernel.org/r/20220801013834.156015-7-andres@anarazel.de Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 3 年前 | |
docs: networking: convert filter.txt to ReST - add SPDX header; - adjust title markup; - mark code blocks and literals as such; - use footnote markup; - mark tables as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> | 6 年前 | |
bpf: Simplify the calculation of variables Fix the following coccicheck warnings: ./tools/bpf/bpf_dbg.c:1201:55-57: WARNING !A || A && B is equivalent to !A || B. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/1614756035-111280-1-git-send-email-jiapeng.chong@linux.alibaba.com | 5 年前 | |
bpf: fix cbpf parser bug for octal numbers Range is 0-7, not 0-9, otherwise parser silently excludes it from the strtol() rather than throwing an error. Reported-by: Marc Boschma <marc@boschma.cx> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> | 7 年前 | |
tools, bpf_asm: Exit non-zero on errors ... so callers can correctly detect failure. Signed-off-by: Ian Denhardt <ian@zenhack.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/b0bea780bc292f29e7b389dd062f20adc2a2d634.1614201868.git.ian@zenhack.net | 5 年前 | |
tools bpf_jit_disasm: Fix compilation error with new binutils binutils changed the signature of init_disassemble_info(), which now causes compilation to fail for tools/bpf/bpf_jit_disasm.c, e.g. on debian unstable. Relevant binutils commit: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=60a3da00bd5407f07 Wire up the feature test and switch to init_disassemble_info_compat(), which were introduced in prior commits, fixing the compilation failure. I verified that bpf_jit_disasm can still disassemble bpf programs, both with the old and new dis-asm.h API. With old binutils there's no change in output before/after this patch. When comparing the output from old binutils (2.35) to new bintuils with the patch (upstream snapshot) there are a few output differences, but they are unrelated to this patch. An example hunk is: f4: mov %r14,%rsi f7: mov %r15,%rdx fa: mov $0x2a,%ecx - ff: callq 0xffffffffea8c4988 + ff: call 0xffffffffea8c4988 104: test %rax,%rax 107: jge 0x0000000000000110 109: xor %eax,%eax - 10b: jmpq 0x0000000000000073 + 10b: jmp 0x0000000000000073 110: cmp $0x16,%rax However, I had to use an older kernel to generate the bpf_jit_enabled = 2 output, as that has been broken since 5.18 / 1022a5498f6f745c ("bpf, x86_64: Use bpf_jit_binary_pack_alloc"). https://lore.kernel.org/20220703030210.pmjft7qc2eajzi6c@alap3.anarazel.de Signed-off-by: Andres Freund <andres@anarazel.de> Acked-by: Quentin Monnet <quentin@isovalent.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Ben Hutchings <benh@debian.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Quentin Monnet <quentin@isovalent.com> Cc: Sedat Dilek <sedat.dilek@gmail.com> Cc: bpf@vger.kernel.org Link: http://lore.kernel.org/lkml/20220622181918.ykrs5rsnmx3og4sv@alap3.anarazel.de Link: https://lore.kernel.org/r/20220801013834.156015-6-andres@anarazel.de Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> | 3 年前 |
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