IPcam firmware mod

[bolfwad]

Hi,

 

I would like to ask if there is an option to modify a '.pak' update file.

binwalk shows this:

 

 

Quote

DECIMAL       HEXADECIMAL     DESCRIPTION
--------------------------------------------------------------------------------
36178         0x8D52          eCos RTOS string reference: "ECOS_ADDR_=0x1E000000 -D_BOARD_ECOS_SIZE_=0x01000000 -D_BOARD_RAMDISK_ADDR_=0x00000000 -D_BOARD_RAMDISK_SIZE_=0x00000000 -D_BOAR"
36209         0x8D71          eCos RTOS string reference: "ECOS_SIZE_=0x01000000 -D_BOARD_RAMDISK_ADDR_=0x00000000 -D_BOARD_RAMDISK_SIZE_=0x00000000 -D_BOARD_DSP1_ADDR_=0x00000000 -D_BOAR"
1170044       0x11DA7C        CRC32 polynomial table, little endian
1174176       0x11EAA0        LZO compressed data
1175291       0x11EEFB        eCos RTOS string reference: "ecos at 0x%08x with length %d bytes"
1175352       0x11EF38        eCos RTOS string reference: "ECOS%s "
1175408       0x11EF70        eCos RTOS string reference: "ECOS%s "
1175438       0x11EF8E        eCos RTOS string reference: "ECOS from 0x%08x to 0x%08x with length %d bytes"
1176356       0x11F324        eCos RTOS string reference: "ecos"
1176403       0x11F353        eCos RTOS string reference: "ecos"
1176428       0x11F36C        eCos RTOS string reference: "ECOS starting address at 0x%08x with size 0x%08x (uncompressed) is larger than temp buffer address!! 0x%08x %s"
1176562       0x11F3F2        eCos RTOS string reference: "ECOS"
1176583       0x11F407        eCos RTOS string reference: "ECOS"
1176619       0x11F42B        eCos RTOS string reference: "ecos addr (%08X) != headinfo(%08X)"
1176696       0x11F478        eCos RTOS string reference: "ecos size(%08X)"
1176912       0x11F550        eCos RTOS string reference: "ecos starting.... 0x%08x"
1177114       0x11F61A        eCos RTOS string reference: "ecos),"
1183881       0x121089        eCos RTOS string reference: "ecos %s"
1184147       0x121193        eCos RTOS string reference: "ecos %s"
1184516       0x121304        eCos RTOS string reference: "ecos pat%d, res check sum fail."
1228292       0x12BE04        uImage header, header size: 64 bytes, header CRC: 0x4BA1C7C6, created: 2019-07-01 11:00:25, image size: 1713893 bytes, Data Address: 0x80101000, Entry Point: 0x8043B030, data CRC: 0xAEA99CA2, OS: Linux, CPU: MIPS, image type: OS Kernel Image, compression type: lzma, image name: "Linux-4.1.0"
2942249       0x2CE529        Squashfs filesystem, little endian, version 4.0, compression:xz, size: 5306266 bytes, 344 inodes, blocksize: 65536 bytes, created: 2020-01-15 03:46:51

 

and extracts a .squash file and squashfs-root directory within a standard linux/busybox architecture.

So is there a possible way for the files to be modded and recompiled?

Thanks in advance.