Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package nodesn
import (
"fmt"
"github.com/u-root/u-root/pkg/ipmi"
"ascend-common/common-utils/hwlog"
)
var (
serialNumberReq = []byte{0x30, 0x90, 0x05, 0x00, 0x03, 0x04, 0x00, 0xff}
manufacturerNameReq = []byte{0x30, 0x90, 0x05, 0x00, 0x03, 0x00, 0x00, 0xff}
)
const snFieldStartIndex = 2
func GetNodeSN() (string, error) {
ipmiTool, err := ipmi.Open(0)
if err != nil {
hwlog.RunLog.Errorf("open ipmi device failed, err is %v", err)
return "", err
}
defer func(ipmiTool *ipmi.IPMI) {
err := ipmiTool.Close()
if err != nil {
hwlog.RunLog.Errorf("close ipmi failed, err is %v", err)
}
}(ipmiTool)
response, err := ipmiTool.RawCmd(serialNumberReq)
if err != nil {
hwlog.RunLog.Errorf("get serial number failed, err is %v", err)
return "", err
}
if len(response) <= snFieldStartIndex {
hwlog.RunLog.Info("serial number not found, use manufacturer name")
response, err = ipmiTool.RawCmd(manufacturerNameReq)
if err != nil {
hwlog.RunLog.Errorf("get manufacturer name failed, err is %v", err)
return "", err
} else if len(response) <= snFieldStartIndex {
hwlog.RunLog.Errorf("get manufacturer name failed, (%v)length is too short", response)
return "", fmt.Errorf("get manufacturer name failed, (%v)length is too short", response)
}
}
snMsgByte := response[snFieldStartIndex:]
return string(snMsgByte), nil
}