diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/scramble.c | 57 |
1 files changed, 49 insertions, 8 deletions
diff --git a/tools/scramble.c b/tools/scramble.c index 8e104cc43c..c91c05d6ee 100644 --- a/tools/scramble.c +++ b/tools/scramble.c @@ -19,11 +19,12 @@ #include <stdio.h> #include <stdlib.h> +#include <stdbool.h> #include <string.h> #include "iriver.h" int iaudio_encode(char *iname, char *oname, char *idstring); -int ipod_encode(char *iname, char *oname, int fw_ver); +int ipod_encode(char *iname, char *oname, int fw_ver, bool fake_rsrc); enum { @@ -78,6 +79,9 @@ void usage(void) "\t-iriver iRiver format\n" "\t-iaudiox5 iAudio X5 format\n" "\t-iaudiox5v iAudio X5V format\n" + "\t-ipod3g ipod firmware partition format (3rd Gen)\n" + "\t-ipod4g ipod firmware partition format (4th Gen, Mini, Nano, Photo/Color)\n" + "\t-ipod5g ipod firmware partition format (5th Gen - aka Video)\n" "\t-add=X Rockbox generic \"add-up\" checksum format\n" "\t (X values: h100, h120, h140, h300, ipco, nano, ipvd\n" "\t ip3g, ip4g, mini, x5)\n" @@ -218,10 +222,20 @@ int main (int argc, char** argv) oname = argv[3]; return iaudio_encode(iname, oname, "COWON_X5V_FW"); } - else if(!strcmp(argv[1], "-ipod")) { + else if(!strcmp(argv[1], "-ipod3g")) { iname = argv[2]; oname = argv[3]; - return ipod_encode(iname, oname, 3); /* Firmware image v3 */ + return ipod_encode(iname, oname, 2, false); /* Firmware image v2 */ + } + else if(!strcmp(argv[1], "-ipod4g")) { + iname = argv[2]; + oname = argv[3]; + return ipod_encode(iname, oname, 3, false); /* Firmware image v3 */ + } + else if(!strcmp(argv[1], "-ipod5g")) { + iname = argv[2]; + oname = argv[3]; + return ipod_encode(iname, oname, 3, true); /* Firmware image v3 */ } /* open file */ @@ -461,7 +475,7 @@ int iaudio_encode(char *iname, char *oname, char *idstring) This has also only been tested on an ipod Photo */ -int ipod_encode(char *iname, char *oname, int fw_ver) +int ipod_encode(char *iname, char *oname, int fw_ver, bool fake_rsrc) { static const char *apple_stop_sign = "{{~~ /-----\\ "\ "{{~~ / \\ "\ @@ -481,11 +495,15 @@ int ipod_encode(char *iname, char *oname, int fw_ver) "---------------"; size_t len; int length; + int rsrclength; + int rsrcoffset; FILE *file; + unsigned int sum = 0; + unsigned int rsrcsum = 0; unsigned char *outbuf; + int bufsize; int i; - unsigned int sum = 0; - + file = fopen(iname, "rb"); if (!file) { perror(iname); @@ -494,8 +512,14 @@ int ipod_encode(char *iname, char *oname, int fw_ver) fseek(file,0,SEEK_END); length = ftell(file); - fseek(file,0,SEEK_SET); - outbuf = malloc(length+0x4600); + fseek(file,0,SEEK_SET); + + bufsize=(length+0x4600); + if (fake_rsrc) { + bufsize = (bufsize + 0x400) & ~0x200; + } + + outbuf = malloc(bufsize); if ( !outbuf ) { printf("out of memory!\n"); @@ -536,6 +560,23 @@ int ipod_encode(char *iname, char *oname, int fw_ver) int2le(0x00006012, &outbuf[0x4220]); /* vers - 0x6012 is a guess */ int2le(0xffffffff, &outbuf[0x4224]); /* LoadAddr - for flash images */ + /* "rsrc" entry (if applicable) */ + if (fake_rsrc) { + rsrcoffset=(length+0x4600+0x200) & ~0x200; + rsrclength=0x200; + rsrcsum=0; + + memcpy(&outbuf[0x4228],"!ATAcrsr",8); /* dev and type */ + int2le(0, &outbuf[0x4230]); /* id */ + int2le(rsrcoffset, &outbuf[0x4234]); /* devOffset */ + int2le(rsrclength, &outbuf[0x4238]); /* Length of firmware */ + int2le(0x10000000, &outbuf[0x423c]); /* Addr */ + int2le(0, &outbuf[0x4240]); /* Entry Offset */ + int2le(rsrcsum, &outbuf[0x4244]); /* Checksum */ + int2le(0x0000b000, &outbuf[0x4248]); /* vers */ + int2le(0xffffffff, &outbuf[0x424c]); /* LoadAddr - for flash images */ + } + file = fopen(oname, "wb"); if (!file) { perror(oname); |