服务器固件版本字典构建异常：NIC.Integrated与NIC.Embedded值混淆

问题描述 #

我正在尝试为服务器已安装的固件版本创建字典，目标是让FQDD作为键，对应值为Current Version。其他设备都能正常处理，但网卡相关的键（NIC.Integrated和NIC.Embedded）出现问题：NIC.Integrated键被错误赋予了NIC.Embedded键的Current Version值。我尝试通过ElementName做条件判断，但问题仍未解决。

我的代码 #

sw_info = {}
sw = {}
with open(f"sw_info.log", "r") as f:
    for line in f:
        try:
            k, v = line.strip().split("=")
            sw_info[k.strip()] = v.strip()
        except:
            pass
        try:
            if "Broadcom Adv. Dual 10GBASE-T Ethernet" in sw_info['ElementName']:
                sw.update({sw_info['FQDD']: sw_info['Current Version']})
                print(sw_info['Current Version'])
            else:
                sw.update({sw_info['FQDD']: sw_info['Current Version']})
        except:
            pass

for key, value in sw.items():
    print(key,': ', value)

固件版本日志文件内容 #

-------------------------SOFTWARE INVENTORY------------------------

ComponentType = FIRMWARE
ElementName = Power Supply.Slot.1
FQDD = PSU.Slot.1
InstallationDate = 2022-09-03T18:32:38Z
Current Version = 00.21.33
HashValue = NA
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Power Supply.Slot.2
FQDD = PSU.Slot.2
InstallationDate = 2022-09-03T18:32:38Z
Current Version = 00.21.33
HashValue = NA
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Integrated Remote Access Controller
FQDD = iDRAC.Embedded.1-1
InstallationDate = NA
Rollback Version = 5.10.50.00
HashValue = NA
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Integrated Remote Access Controller
FQDD = iDRAC.Embedded.1-1
InstallationDate = 2022-09-03T18:32:38Z
Current Version = 5.10.50.00
HashValue = NA
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Broadcom Adv. Dual 10GBASE-T Ethernet - 84:16:0C:C3:4C:B1
FQDD = NIC.Integrated.1-2-1
InstallationDate = 2022-09-03T19:20:02Z
Current Version = 22.00.07.60
HashValue = 30df8d850c067b99136a6f1593cbbe74e4ce771a0e54283966b6de44ebcb495e
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Broadcom Adv. Dual 10GBASE-T Ethernet - 84:16:0C:C3:4C:B0
FQDD = NIC.Integrated.1-1-1
InstallationDate = 2022-09-03T19:20:01Z
Current Version = 22.00.07.60
HashValue = 30df8d850c067b99136a6f1593cbbe74e4ce771a0e54283966b6de44ebcb495e
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Broadcom Gigabit Ethernet BCM5720 - EC:2A:72:30:4E:9C
FQDD = NIC.Embedded.1-1-1
InstallationDate = 2022-09-03T19:19:59Z
Current Version = 22.00.6
HashValue = 56fa85676e6d570f714fb659f202371f1c570263b680e2d40d16059acfa9e3e6
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Broadcom Gigabit Ethernet BCM5720 - EC:2A:72:30:4E:9D
FQDD = NIC.Embedded.2-1-1
InstallationDate = 2022-09-03T19:20:00Z
Current Version = 22.00.6
HashValue = 56fa85676e6d570f714fb659f202371f1c570263b680e2d40d16059acfa9e3e6
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Broadcom Adv. Dual 10GBASE-T Ethernet - 84:16:0C:C3:4C:B1
FQDD = NIC.Integrated.1-2-1
InstallationDate = NA
Available Version = 22.00.07.60
HashValue = 30df8d850c067b99136a6f1593cbbe74e4ce771a0e54283966b6de44ebcb495e
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Broadcom Adv. Dual 10GBASE-T Ethernet - 84:16:0C:C3:4C:B0
FQDD = NIC.Integrated.1-1-1
InstallationDate = NA
Available Version = 22.00.07.60
HashValue = 30df8d850c067b99136a6f1593cbbe74e4ce771a0e54283966b6de44ebcb495e
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Broadcom Gigabit Ethernet BCM5720 - EC:2A:72:30:4E:9C
FQDD = NIC.Embedded.1-1-1
InstallationDate = NA
Available Version = 22.00.6
HashValue = 56fa85676e6d570f714fb659f202371f1c570263b680e2d40d16059acfa9e3e6
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Broadcom Gigabit Ethernet BCM5720 - EC:2A:72:30:4E:9D
FQDD = NIC.Embedded.2-1-1
InstallationDate = NA
Available Version = 22.00.6
HashValue = 56fa85676e6d570f714fb659f202371f1c570263b680e2d40d16059acfa9e3e6
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = PERC H745 Front
FQDD = RAID.SL.3-1
InstallationDate = 2022-09-03T18:35:21Z
Current Version = 51.16.0-4076
HashValue = cdf6d5780d28c34e792c13e57c300ab46d964fdb1e1f189f7976044fa36d0092
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = PERC H745 Front
FQDD = RAID.SL.3-1
InstallationDate = NA
Available Version = 51.16.0-4076
HashValue = cdf6d5780d28c34e792c13e57c300ab46d964fdb1e1f189f7976044fa36d0092
-------------------------------------------------------------------

ComponentType = BIOS
ElementName = BIOS
FQDD = BIOS.Setup.1-1
InstallationDate = 2022-09-03T18:35:21Z
Current Version = 1.7.4
HashValue = 576f3516f12de1669552d56f0556b42a92e26b78db6c2c3486ec3e9cc144f0fe
-------------------------------------------------------------------

ComponentType = BIOS
ElementName = BIOS
FQDD = BIOS.Setup.1-1
InstallationDate = NA
Available Version = 1.7.4
HashValue = 576f3516f12de1669552d56f0556b42a92e26b78db6c2c3486ec3e9cc144f0fe
-------------------------------------------------------------------

ComponentType = APPLICATION
ElementName = Lifecycle Controller
FQDD = USC.Embedded.1:LC.Embedded.1
InstallationDate = 2022-09-03T18:32:42Z
Current Version = 5.10.50.00
HashValue = NA
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = System CPLD
FQDD = CPLD.Embedded.1
InstallationDate = 2022-09-03T18:32:42Z
Current Version = 1.0.7
HashValue = NA
-------------------------------------------------------------------

ComponentType = APPLICATION
ElementName = Identity Module(WWJ74)
FQDD = PM.Embedded.1
InstallationDate = 2022-09-03T20:31:07Z
Current Version = 2.00
HashValue = NA
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = TPM
FQDD = TPM.Integrated.1-1
InstallationDate = 2022-09-03T20:02:58Z
Current Version = 7.2.2.0
HashValue = NA
-------------------------------------------------------------------

ComponentType = APPLICATION
ElementName = Dell 64 Bit uEFI Diagnostics, version 4301, 4301A73, 4301.74
FQDD = Diagnostics.Embedded.1:LC.Embedded.1
InstallationDate = 2022-09-03T20:31:06Z
Current Version = 4301A73
HashValue = NA
-------------------------------------------------------------------

ComponentType = APPLICATION
ElementName = Dell OS Driver Pack, 22.07.10, A00
FQDD = DriverPack.Embedded.1:LC.Embedded.1
InstallationDate = 2022-09-03T20:31:06Z
Current Version = 22.07.10
HashValue = NA
-------------------------------------------------------------------

ComponentType = APPLICATION
ElementName = Dell EMC iDRAC Service Module Embedded Package v4.3.0.0, A00
FQDD = ServiceModule.Embedded.1
InstallationDate = 2022-09-03T20:31:07Z
Current Version = 4.3.0.0
HashValue = NA
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Backplane 1
FQDD = RAID.Backplane.Firmware.1
InstallationDate = 2022-09-03T19:02:40Z
Current Version = 3.72
HashValue = b92e8c23b0caab9cc0a820f5a7aca1813b43c8ed93b533c76cd897dd7e2754d2
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Backplane 1
FQDD = RAID.Backplane.Firmware.1
InstallationDate = NA
Available Version = 3.72
HashValue = b92e8c23b0caab9cc0a820f5a7aca1813b43c8ed93b533c76cd897dd7e2754d2
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Disk 1 in Backplane 1 of RAID Controller in SL 3
FQDD = Disk.Bay.1:Enclosure.Internal.0-1:RAID.SL.3-1
InstallationDate = 2022-09-03T18:35:22Z
Current Version = BJ03
HashValue = NA
-------------------------------------------------------------------

ComponentType = FIRMWARE
ElementName = Disk 0 in Backplane 1 of RAID Controller in SL 3
FQDD = Disk.Bay.0:Enclosure.Internal.0-1:RAID.SL.3-1
InstallationDate = 2022-09-03T18:35:22Z
Current Version = BJ03
HashValue = NA
-------------------------------------------------------------------

解决方案 #

问题根源 #

1. 设备数据交叉污染：原代码逐行读取时，sw_info字典会持续累加所有行的键值对，不同设备的数据互相覆盖，导致网卡版本信息混乱。
2. 重复条目覆盖有效值：同一个FQDD存在两条记录（一条带Current Version，一条带Available Version），原代码会用后面的Available Version条目覆盖之前的Current Version值。
3. 无效条件判断：ElementName的判断逻辑没有实际作用，无论条件是否成立都会执行相同的更新操作，反而容易引发异常。

修正后的代码 #

sw = {}
with open("sw_info.log", "r") as f:
    # 按分隔线分割所有设备块
    device_blocks = f.read().split("-------------------------------------------------------------------")
    for block in device_blocks:
        sw_info = {}
        # 处理每个块内的行
        for line in block.strip().split("\n"):
            line = line.strip()
            if not line or line.startswith("-------------------------"):
                continue
            try:
                # 用split("=", 1)避免值中包含等号时出错
                k, v = line.split("=", 1)
                sw_info[k.strip()] = v.strip()
            except ValueError:
                continue
        # 只处理包含FQDD和Current Version的有效条目
        if "FQDD" in sw_info and "Current Version" in sw_info:
            sw[sw_info["FQDD"]] = sw_info["Current Version"]

# 打印最终结果
for key, value in sw.items():
    print(f"{key}: {value}")

改动说明 #

1. 按设备块独立处理：用分隔线将日志分割为独立的设备块，每个块单独解析，彻底避免数据交叉污染。
2. 重置临时存储字典：每个设备块处理前重新初始化sw_info，确保只存储当前设备的信息。
3. 过滤有效记录：只保留包含FQDD和Current Version的记录，自动忽略带Available Version的更新候选条目。
4. 健壮的键值分割：使用split("=", 1)分割键值对，避免值中包含等号时出现解析错误。

内容的提问来源于stack exchange，提问作者Benn