From 500dd04724f2a89b0e532dffe5259abd6e84242f Mon Sep 17 00:00:00 2001 From: Piotr Dymacz Date: Wed, 21 Jun 2017 14:15:55 +0200 Subject: [PATCH] firmware-utils: mktplinkfw2: support additional hardware version As it turned out, some of new MediaTek based TP-Link devices use value from field at 0x3c offset in version 3 of TP-Link header to specify "Additional Hardware Version". Value from this field is validated during regular (GUI) firmware upgrade on devices like TL-WR840N v4 or TL-WR841N v13. If it's zero (based on some tests, it seems that firmware will accept anything != 0), errors like below are printed on console and upgrade fails: [ rsl_sys_updateFirmware ] 2137: Firmware Additional HardwareVersion check failed [ rdp_updateFirmware ] 345: perror:4506 Signed-off-by: Piotr Dymacz --- src/mktplinkfw2.c | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) diff --git a/src/mktplinkfw2.c b/src/mktplinkfw2.c index 3ab5c52..b6dd670 100644 --- a/src/mktplinkfw2.c +++ b/src/mktplinkfw2.c @@ -43,7 +43,7 @@ struct fw_header { char fw_version[48]; /* 0x04: fw version string */ uint32_t hw_id; /* 0x34: hardware id */ uint32_t hw_rev; /* 0x38: FIXME: hardware revision? */ - uint32_t unk1; /* 0x3c: 0x00000000 */ + uint32_t hw_ver_add; /* 0x3c: additional hardware version */ uint8_t md5sum1[MD5SUM_LEN]; /* 0x40 */ uint32_t unk2; /* 0x50: 0x00000000 */ uint8_t md5sum2[MD5SUM_LEN]; /* 0x54 */ @@ -80,6 +80,7 @@ struct board_info { char *id; uint32_t hw_id; uint32_t hw_rev; + uint32_t hw_ver_add; char *layout_id; uint32_t hdr_ver; bool endian_swap; @@ -104,6 +105,8 @@ static char *opt_hw_id; static uint32_t hw_id; static char *opt_hw_rev; static uint32_t hw_rev; +static char *opt_hw_ver_add; +static uint32_t hw_ver_add; static int fw_ver_lo; static int fw_ver_mid; static int fw_ver_hi; @@ -288,6 +291,7 @@ static void usage(int status) " -L overwrite kernel load address with (hexval prefixed with 0x)\n" " -H use hardware id specified with \n" " -W use hardware revision specified with \n" +" -w use additional hardware version specified with \n" " -F use flash layout specified with \n" " -k read kernel image from the file \n" " -r read rootfs image from the file \n" @@ -391,6 +395,7 @@ static int check_options(void) hw_id = board->hw_id; hw_rev = board->hw_rev; + hw_ver_add = board->hw_ver_add; if (board->hdr_ver) hdr_ver = board->hdr_ver; endian_swap = board->endian_swap; @@ -405,6 +410,11 @@ static int check_options(void) hw_rev = strtoul(opt_hw_rev, NULL, 0); else hw_rev = 1; + + if (opt_hw_ver_add) + hw_ver_add = strtoul(opt_hw_rev, NULL, 0); + else + hw_ver_add = 0; } layout = find_layout(layout_id); @@ -511,6 +521,7 @@ static void fill_header(char *buf, int len) hdr->hw_id = htonl(hw_id); hdr->hw_rev = htonl(hw_rev); + hdr->hw_ver_add = htonl(hw_ver_add); if (boot_info.file_size == 0) { memcpy(hdr->md5sum1, md5salt_normal, sizeof(hdr->md5sum1)); @@ -535,7 +546,6 @@ static void fill_header(char *buf, int len) hdr->boot_ofs = htonl(0); hdr->boot_len = htonl(boot_info.file_size); - hdr->unk1 = htonl(0); hdr->unk2 = htonl(0); hdr->unk3 = htonl(0xffffffff); hdr->unk4 = htons(0x55aa); @@ -779,9 +789,6 @@ static int inspect_fw(void) inspect_fw_phexdec("Version 2 Header size", sizeof(struct fw_header)); - if (ntohl(hdr->unk1) != 0) - inspect_fw_phexdec("Unknown value 1", hdr->unk1); - memcpy(md5sum, hdr->md5sum1, sizeof(md5sum)); if (ntohl(hdr->boot_len) == 0) memcpy(hdr->md5sum1, md5salt_normal, sizeof(md5sum)); @@ -820,11 +827,15 @@ static int inspect_fw(void) ntohl(hdr->hw_id), board->id); inspect_fw_phexexp("Hardware Revision", ntohl(hdr->hw_rev), board->hw_rev); + inspect_fw_phexexp("Additional HW Version", + ntohl(hdr->hw_ver_add), board->hw_ver_add); } else { inspect_fw_phexpost("Hardware ID", ntohl(hdr->hw_id), "unknown"); inspect_fw_phex("Hardware Revision", ntohl(hdr->hw_rev)); + inspect_fw_phex("Additional HW Version", + ntohl(hdr->hw_ver_add)); } printf("%-23s: %d.%d.%d-%d.%d\n", "Software version", @@ -919,7 +930,7 @@ int main(int argc, char *argv[]) while ( 1 ) { int c; - c = getopt(argc, argv, "a:B:H:E:F:L:V:N:W:ci:k:r:R:o:xhsjv:y:T:e"); + c = getopt(argc, argv, "a:B:H:E:F:L:V:N:W:w:ci:k:r:R:o:xhsjv:y:T:e"); if (c == -1) break; @@ -942,6 +953,9 @@ int main(int argc, char *argv[]) case 'W': opt_hw_rev = optarg; break; + case 'w': + opt_hw_ver_add = optarg; + break; case 'L': sscanf(optarg, "0x%x", &kernel_la); break; -- 2.30.2