121 lines
3.8 KiB
Markdown
121 lines
3.8 KiB
Markdown
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---
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tags: []
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date created: 星期三, 十一月 19日 2025, 3:10:38 下午
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date modified: 星期三, 十一月 19日 2025, 5:42:25 下午
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---
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# 1.1.1 发行版与内核版本指纹
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**1. OS 发行版完整标识 (Distro Full ID)**
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- **关键性**：P0
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- **预期信息**：确认具体的 SP 版本（如 V10 SP1/SP2/SP3），不同版本的 Glibc 和内核基线差异极大。
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- 探测命令：
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```bash
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cat /etc/kylin-release /etc/os-release 2>/dev/null | grep -E "PRETTY_NAME|VERSION_ID|Kylin Linux Advanced Server"
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Kylin Linux Advanced Server release V10 (GFB)
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NAME="Kylin Linux Advanced Server"
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VERSION_ID="V10"
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PRETTY_NAME="Kylin Linux Advanced Server V10 (GFB)"
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```
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**2. CPU 架构与字节序 (Arch & Endianness)**
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- **关键性**：P0
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- **预期信息**：必须确认为 aarch64 且为 Little Endian（小端序），这是 Feiteng S5000C 的基础特征。
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- 探测命令：
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```bash
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lscpu | grep -E "Architecture|Byte Order"
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空
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```
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**3. 内核发布版本号 (Kernel Release)**
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- **关键性**：P0
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- **预期信息**：精确的内核版本字符串。驱动源码的 Header Path 必须与此完全一致。
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- 探测命令：
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```bash
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uname -r
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4.19.90-52.23.v2207.gfb08.ky10.aarch64
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```
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**4. 内核构建编译器版本 (Kernel GCC Version)**
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- **关键性**：P0
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- **预期信息**：提取圆括号内的 gcc version。如果此版本与当前环境中 gcc 版本差异过大，编译内核模块时极易报错。
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- 探测命令：
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```bash
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cat /proc/version
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Linux version 4.19.90-52.23.v2207.gfb08.ky10.aarch64 (KYLINSOFT@localhost.localdomain) (gcc version 7.3.0 (GCC)) #1 SMP Tue Apr 23 18:20:01 CST 2024
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```
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**5. 内核启动参数全集 (Kernel Boot Cmdline)**
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- **关键性**：P1
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- **预期信息**：检查是否已有预设的 isolcpus、hugepages 或 iommu 参数，判断基线是否纯净。
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- 探测命令：
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```bash
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cat /proc/cmdline
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BOOT_IMAGE=/vmlinuz-4.19.90-52.23.v2207.gfb08.ky10.aarch64 root=/dev/mapper/klas-root ro rd.lvm.lv=klas/root rd.lvm.lv=klas/swap acpi=on rhgb quiet console=tty0 crashkernel=1024M,high smmu.bypassdev=0x1000:0x17 smmu.bypassdev=0x1000:0x15 video=efifb:off module_blacklist=phytium_mci_pci module_blacklist=phytium_mci audit=0
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```
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**6. 内核构建时间戳 (Kernel Build Timestamp)**
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- **关键性**：P2
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- **预期信息**：确认内核是原厂构建还是用户自行重新编译过的版本。
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- 探测命令：
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```bash
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uname -v
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#1 SMP Tue Apr 23 18:20:01 CST 2024
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```
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**7. 内核模块签名强制性 (Module Signing Policy)**
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- **关键性**：P1
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- **预期信息**：检查 CONFIG_MODULE_SIG_FORCE。如果是 y，则加载未签名的自研驱动会被拒绝。
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- 探测命令：
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```bash
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grep "CONFIG_MODULE_SIG" /boot/config-$(uname -r) 2>/dev/null || echo "Config check failed"
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CONFIG_MODULE_SIG=y
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# CONFIG_MODULE_SIG_FORCE Is not Set
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CONFIG_MODULE_SIG_ALL=y
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# CONFIG_MODULE_SIG_SHA1 is not set
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# CONFIG_MODULE_SIG_SHA224 is not set
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CONFIG_MODULE_SIG_SHA256=y
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# CONFIG_MODULE_SIG_SHA384 is not set
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# CONFIG_MODULE_SIG_SHA512 is not set
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CONFIG_MODULE_SIG_HASH="sha256"
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CONFIG_MODULE_SIG_KEY="certs/signing_key.pem"
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```
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**8. 安全模块状态 (LSM Status)**
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- **关键性**：P1
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- **预期信息**：确认 SELinux 或 Kysec（麒麟安全子系统）的状态，这是导致设备节点无权限访问的常见原因。
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- 探测命令：
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```bash
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sestatus 2>/dev/null; getenforce 2>/dev/null; ls -d /sys/kernel/security/lsm
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SELinux status: disabled
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Disabled
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/sys/kernel/security/lsm
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```
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**9. 页大小配置 (Page Size Configuration)**
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- **关键性**：P1
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- **预期信息**：aarch64 架构下可能存在 4KB 或 64KB 页大小的差异。页大小不匹配会导致内存映射（mmap）失败。
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- 探测命令：
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```bash
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getconf PAGESIZE
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65536
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```
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