[OpenWrt-Devel] [PATCH 1/3] tools/firmware-utils: add header version 2 support for mktplinkfw

[Weijie Gao]

Signed-off-by: Weijie Gao <hackpascal at gmail.com>

This patch adds header version 2 option for mktplinkfw.

The version 2 header is used for AR/QCA firmwares and is not the same as
the header generated by mktplinkfw2.
Instead, it is nearly the same as version 1 header except for the header
version and the RSA signature.

The header version 2 support is used for newer TP-Link routers which have
only a 64kb bootloader part, e.g. TL-WDR6500 v2.
---
 tools/firmware-utils/src/mktplinkfw.c | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/tools/firmware-utils/src/mktplinkfw.c b/tools/firmware-utils/src/mktplinkfw.c
index 12420ad..1302d46 100644
--- a/tools/firmware-utils/src/mktplinkfw.c
+++ b/tools/firmware-utils/src/mktplinkfw.c
@@ -30,6 +30,7 @@
 #define ALIGN(x,a) ({ typeof(a) __a = (a); (((x) + __a - 1) & ~(__a - 1)); })
 
 #define HEADER_VERSION_V1	0x01000000
+#define HEADER_VERSION_V2	0x02000000
 #define HWID_ANTMINER_S1	0x04440001
 #define HWID_ANTMINER_S3	0x04440003
 #define HWID_GL_INET_V1		0x08000001
@@ -130,6 +131,7 @@ static char *progname;
 static char *vendor = "TP-LINK Technologies";
 static char *version = "ver. 1.0";
 static char *fw_ver = "0.0.0";
+static uint32_t hdr_ver = HEADER_VERSION_V1;
 
 static char *board_id;
 static struct board_info *board;
@@ -139,6 +141,7 @@ static char *opt_hw_id;
 static uint32_t hw_id;
 static char *opt_hw_rev;
 static uint32_t hw_rev;
+static uint32_t opt_hdr_ver = 1;
 static int fw_ver_lo;
 static int fw_ver_mid;
 static int fw_ver_hi;
@@ -526,6 +529,7 @@ static void usage(int status)
 "  -N <vendor>     set image vendor to <vendor>\n"
 "  -V <version>    set image version to <version>\n"
 "  -v <version>    set firmware version to <version>\n"
+"  -m <version>    set header version to <version>\n"
 "  -i <file>       inspect given firmware file <file>\n"
 "  -x              extract kernel and rootfs while inspecting (requires -i)\n"
 "  -X <size>       reserve <size> bytes in the firmware image (hexval prefixed with 0x)\n"
@@ -723,6 +727,15 @@ static int check_options(void)
 		return -1;
 	}
 
+	if (opt_hdr_ver == 1) {
+		hdr_ver = HEADER_VERSION_V1;
+	} else if (opt_hdr_ver == 2) {
+		hdr_ver = HEADER_VERSION_V2;
+	} else {
+		ERR("invalid header version '%u'", opt_hdr_ver);
+		return -1;
+	}
+
 	return 0;
 }
 
@@ -732,7 +745,7 @@ static void fill_header(char *buf, int len)
 
 	memset(hdr, 0, sizeof(struct fw_header));
 
-	hdr->version = htonl(HEADER_VERSION_V1);
+	hdr->version = htonl(hdr_ver);
 	strncpy(hdr->vendor_name, vendor, sizeof(hdr->vendor_name));
 	strncpy(hdr->fw_version, version, sizeof(hdr->fw_version));
 	hdr->hw_id = htonl(hw_id);
@@ -972,8 +985,9 @@ static int inspect_fw(void)
 	inspect_fw_pstr("File name", inspect_info.file_name);
 	inspect_fw_phexdec("File size", inspect_info.file_size);
 
-	if (ntohl(hdr->version) != HEADER_VERSION_V1) {
-		ERR("file does not seem to have V1 header!\n");
+	if ((ntohl(hdr->version) != HEADER_VERSION_V1) &&
+	    (ntohl(hdr->version) != HEADER_VERSION_V2)) {
+		ERR("file does not seem to have V1/V2 header!\n");
 		goto out_free_buf;
 	}
 
@@ -1108,7 +1122,7 @@ 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:xX:hsSjv:");
+		c = getopt(argc, argv, "a:B:H:E:F:L:m:V:N:W:ci:k:r:R:o:xX:hsSjv:");
 		if (c == -1)
 			break;
 
@@ -1134,6 +1148,9 @@ int main(int argc, char *argv[])
 		case 'L':
 			sscanf(optarg, "0x%x", &kernel_la);
 			break;
+		case 'm':
+			sscanf(optarg, "%u", &opt_hdr_ver);
+			break;
 		case 'V':
 			version = optarg;
 			break;
-- 
2.1.4
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