20.06.2012, в 10:08, Rafał Miłecki <[email protected]> написал(а):
> 2012/6/19 Roman A. aka BasicXP <[email protected]>:
>> Turns out the region is 0x0002 for worldwide. If you have a WNDR4500 
>> yourself, try running routerinfo, it will give you the information you need.
> 
> Interesting, "routerinfo" indeeds shows 0x0002:
>> Board ID - U12H189T00_NETGEAR
>> region_num - 0x0002
> 
> However I took a look at tools/firmware-utils/src/mkchkimg.c and found
> interesting thing:
> 
> hdr->magic = htonl (0x2a23245e);
> hdr->reserved[0] = (unsigned char)(region & 0xff);
> 
> struct chk_header {
>    uint32_t magic;
>    uint32_t header_len;
>    uint8_t  reserved[8];
>    uint32_t kernel_chksum;
>    uint32_t rootfs_chksum;
>    uint32_t kernel_len;
>    uint32_t rootfs_len;
>    uint32_t image_chksum;
>    uint32_t header_chksum;
>    /* char board_id[] - upto MAX_BOARD_ID_LEN */
> };
> 
> And that allows me to read sth different from
> WNDR4500-V1.0.0.103_1.0.21.chk hexdump. It looks like that:
> 
> 2A23245E 0000003A 01010000 67010015
> 
> So it seems that:
> reserved[0] = 0x01
> reserved[1] = 0x01
> reserved[2] = 0x00
> reserved[3] = 0x00
> reserved[4] = 0x67
> reserved[5] = 0x01
> reserved[6] = 0x00
> reserved[7] = 0x15
> 
> I don't see any "0x02" here, especially in reserver[0]. If reserver[0]
> is really a region, it seems to be 0x01 for me.
> 
> -- 
> Rafał

If you look in trunk/target/linux/brcm47xx/image/Makefile, all firmwares are 
built with region 2.

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