修改 IP 摄像机固件

修改 IP 摄像机固件

我有一个D-Link DCS-931LIP 摄像头开始经常丢失 wifi 连接。为了调试这个问题,我尝试登录,但任何远程访问都被禁止(除了 Web 界面,但对我来说没用)。所以我决定玩一下摄像头固件。使用 binwalk 查看和提取固件内容相对容易:

$ binwalk -t dcs931l_v107_b1.bin 

DECIMAL       HEXADECIMAL     DESCRIPTION
 --------------------------------------------------------------------------------
0             0x0             uImage header, header size: 64 bytes, header CRC:
                              0x87952F3D, created: Wed Feb  4 17:09:26 2015,
                              image size: 128432 bytes, Data Address:
                              0x80200000, Entry Point: 0x80200000, data CRC:
                              0x22AE437C, OS: Linux, CPU: MIPS, image type:
                              Standalone Program, compression type: none,
                              image name: "SPI Flash Image"
99296         0x183E0         U-Boot version string, "U-Boot 1.1.3"
115616        0x1C3A0         HTML document header
115969        0x1C501         HTML document footer
115972        0x1C504         HTML document header
116171        0x1C5CB         HTML document footer
116332        0x1C66C         HTML document header
117032        0x1C928         HTML document footer
327680        0x50000         uImage header, header size: 64 bytes, header CRC:
                              0x99A49EC1, created: Wed Feb  4 17:09:20 2015,
                              image size: 7383128 bytes, Data Address:
                              0x80000000, Entry Point: 0x8038D000, data CRC:
                              0x6FA27193, OS: Linux, CPU: MIPS, image type:  OS
                              Kernel Image, compression type: lzma, image
                              name: "Linux Kernel Image"
327744        0x50040         LZMA compressed data, properties: 0x5D,
                              dictionary size: 33554432 bytes, uncompressed
                              size: 9988726 bytes

“LZMA 压缩数据”块包含实际系统,可以在那里启用 telnet 并进行其他修改。

但是 binwalk 似乎无法将系统重新包装成适合下载到相机中的固件文件。有人能解释一下或指出一个资源来解释如何创建这个固件文件吗?

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