前几天我在 捡了一台 HR650X -- 附加折腾日记 里面提到, 我发现我的服务器的 BIOS 是个 Debug Build, 里面有一些嵌入的调试信息和 debug print. 由于最近逆向是我的老本行 (你别问为什么), 我就用我的神秘逆向工具平台把这个 BIOS 给统统逆了. 不过吧… 你要说有什么有趣的发现, 我还没那么多时间去看 (实在是太多了), 我也不好说到底逆向有多么成功, 但是 Anyway, 还是写一篇短文介绍一下.
This article discusses QLogic QL45xxx series 100GbE NICs, with capability to breakout into 2x50GbE or 4x25GbE. It covers the OEM parts, firmware and cross flashing between different models in the series.
Related parts (QLogic/Generic subsystem):
| Model | VenID | DevID | SubVen | SubDev |
|---|---|---|---|---|
| FastLinQ QL45211H 25GbE | 1077 | 1656 | 1077 | E4F6 |
| FastLinQ QL45212H 25GbE | 1077 | 1656 | 1077 | E4F7 |
| FastLinQ QL45262H 25GbE | 1077 | 1656 | 1077 | E4FB |
| FastLinQ QL45000 Series 25GbE | 1077 | 1656 | 1077 | E4F8 |
| FastLinQ QL45611H 100GbE | 1077 | 1644 | 1077 | E4F8 |
| FastLinQ QL45631H 100GbE | 1077 | 1644 | 1077 | 0025 |
| Cisco QL45631HOCU 100GbE QSFP28 OCP | 1077 | 1644 | 1137 | 024E |
| Oracle QL45651HLCU 100GbE | 1077 | 1644 | 1077 | 0048 |
| QLogic single port 100GbE PCIe NIC | 1077 | 1644 | 1137 | 0257 |
HPE OEM subsystem (SubVen 1590):
| Model | VenID | DevID | SubVen | SubDev |
|---|---|---|---|---|
| HPE Ethernet 4x25Gb 620QSFP28 | 1077 | 1656 | 1590 | 00CF |
| HPE Synergy 6810C 25/50Gb 2-port | 1077 | 1654 | 1590 | 0223 |
| FastLinQ QL45000 Series 100GbE | 1077 | 1644 | 1590 | 00F6 |
The article is split into two main parts: a story, and a guide. The story covers how I get familiar with the cross-flashing process, and the guide aims to provide a precise, step-by-step instruction for cross-flashing QLogic QL45xxx series NICs. The guide is based on the experience gained from the story, and is intended to help others who want to perform similar cross-flashing tasks.
DISCLAIMER: Cross flashing firmware can be risky (and involves soldering the EEPROM chip), and, if done incorrectly, can brick / permanently damage the device (especially when you’re not good at soldering). MAKE REALLY SURE THAT YOU UNDERSTAND THE RISKS, AND I AM NOT RESPONSIBLE FOR ANY DAMAGE THAT MAY OCCUR.
本篇探讨了如何结合 LLM 辅助的逆向工程技术, 在 Linux 上通过 GDB 调试微信, 从而在命令行中获取微信消息的内容.
之前工场的人问有没有斐讯 FS3812 的配置文档, 我找了一圈没找到, 还在想为啥他们要找这玩意的文档. 这两天要考试了, 到了我最喜欢的摸鱼环节, 去一看发现工场不知道从哪搞了个这, 结果不会配置. 于是本着死马当活马医的原则, 我折腾了一下这玩意.