X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/rsbs2/blobdiff_plain/9eb4b3c68c23622076943399ae2c8d298eb32799..a97855ded317db6025710edc487d337cbd5f0ad2:/firmware.c?ds=sidebyside diff --git a/firmware.c b/firmware.c index 6ef5971..b575012 100644 --- a/firmware.c +++ b/firmware.c @@ -8,7 +8,7 @@ #include #include #include "rsb-crc.h" -#include "rsb-lz.h" +#include "filesystem.h" #define FINDSTR(addr, str) (!strncmp((char*)addr, str, strlen(str))) @@ -46,18 +46,17 @@ struct propaction { void show_properties(unsigned char *fw, int len) { - int i; + struct file_entry *fent; - for (i = 0; i < (len-100 /* XXX */); i++) { - if (FINDSTR(fw+i, "/default/fw_prop/") || - FINDSTR(fw+i, "/default/fw_setup/") || - FINDSTR(fw+i, "/default/oem_prop/")) { + for (fent = get_next_file(fw, len); fent != NULL; fent = get_next_file(NULL, 0)) { + if (FINDSTR(fent->name, "/default/fw_prop/") || + FINDSTR(fent->name, "/default/fw_setup/") || + FINDSTR(fent->name, "/default/oem_prop/")) { struct properties *prop; - unsigned char *pos = fw + i; - printf("0x%08x: found setting: %s ", i, pos); + printf("0x%08x: found setting: %s ", fent->start - fw, fent->name); - prop = (struct properties*)(pos + strlen((char*)pos) + 1); + prop = (struct properties*)fent->start; if (prop->magic != 0x83011111) { printf("ignoring...\n"); @@ -82,29 +81,28 @@ void show_properties(unsigned char *fw, int len) } else { printf("(UNK 0x%02x 0x%02x)", prop->right_rw, prop->rw_mask); } - printf(", length: %d\n", *((unsigned int*)(fw + i - 4))); + printf(", length: %d\n", fent->length); } } } void change_properties(unsigned char *fw, int len, struct propaction *paction) { - int i; + struct file_entry *fent; struct propaction *cpaction; - for (i = 0; i < (len-100 /* XXX */); i++) { + for (fent = get_next_file(fw, len); fent != NULL; fent = get_next_file(NULL, 0)) { cpaction = paction; while (cpaction != NULL) { - if (FINDSTR(fw + i, cpaction->property)) { + if (FINDSTR(fent->name, cpaction->property)) { break; } cpaction = cpaction->next; } if (cpaction != NULL) { struct properties *prop; - unsigned char *pos = fw + i; - prop = (struct properties*)(pos + strlen((char*)pos) + 1); + prop = (struct properties*)fent->start; if (prop->magic != 0x83011111) { continue; @@ -218,48 +216,59 @@ void print_boarddescription(unsigned char *bd) void handle_boarddescription(unsigned char *fw, int len, int patch) { - int i; + struct file_entry *fent; + unsigned char *pos; - for (i = len - (strlen("pdata")+1); i > 0; i--) { - if (FINDSTR(fw+i, "pdata")) { - unsigned char *pos = fw + i + strlen("pdata") + 1; + for (fent = get_next_file(fw, len); fent != NULL; fent = get_next_file(NULL, 0)) { + if (!strcmp(fent->name, "pdata")) + break; + } - /* MAGIC? */ - if (*((unsigned int*)pos) != 0x00002802) { - continue; - } + if (fent == NULL) { + fprintf(stderr, "pdata file not found, aborting!\n"); + exit(1); + } - pos += 26; - /* MAGIC2? */ - if (*((unsigned int*)pos) != 0x00500101) { - continue; - } + pos = fent->start; + /* MAGIC? */ + if (*((unsigned int*)pos) != 0x00002802) { + fprintf(stderr, "pdata magic does not match, aborting!\n"); + exit(1); + } - if (patch) { - /* Enable relay power switching */ - BD_SET(pos, PWRRELAY); - } - printf("0x%08x: BOARD_DESCRIPTION: ", pos-fw); - print_boarddescription(pos); + pos += 26; - break; - } + /* MAGIC2? */ + if (*((unsigned int*)pos) != 0x00500101) { + fprintf(stderr, "pdata magic2 does not match, aborting!\n"); + exit(1); + } + + if (patch) { + /* Enable ATX and relay power switching */ + BD_SET(pos, PWRATX); + BD_SET(pos, PWRRELAY); } + + printf("0x%08x: BOARD_DESCRIPTION: ", fent->start - fw); + print_boarddescription(pos); } void syntax(char *name) { fprintf(stderr,"Syntax: %s parameters firmware.bin\n", name); fprintf(stderr,"parameters as follows:\n"); - fprintf(stderr,"\t-d\t\tdisplay all properties of the image\n"); - fprintf(stderr,"\t-u\t\tupdate checksum of the image\n"); - fprintf(stderr,"\t-b\t\tmodify BOARD_DESCRIPTION for more power-switch options\n"); - fprintf(stderr,"\t-e\t\textract files in firmware\n"); - fprintf(stderr,"\t-t property\tset 'property' to true\n"); - fprintf(stderr,"\t-f property\tset 'property' to false\n"); - fprintf(stderr,"\t-w property\tallow read-write access to 'property'\n"); - fprintf(stderr,"\t-r property\tallow read-only access to 'property'\n"); + fprintf(stderr,"\t-d\t\t\tdisplay all properties of the image\n"); + fprintf(stderr,"\t-u\t\t\tupdate checksum of the image\n"); + fprintf(stderr,"\t-b\t\t\tmodify BOARD_DESCRIPTION for more power-switch options\n"); + fprintf(stderr,"\t-e\t\t\textract files in firmware\n"); + fprintf(stderr,"\t-l\t\t\tlist files in firmware\n"); + fprintf(stderr,"\t-t property\t\tset 'property' to true\n"); + fprintf(stderr,"\t-f property\t\tset 'property' to false\n"); + fprintf(stderr,"\t-w property\t\tallow read-write access to 'property'\n"); + fprintf(stderr,"\t-r property\t\tallow read-only access to 'property'\n"); + fprintf(stderr,"\t-x fw_file=local_file\treplace or add fw_file with content of local_file\n"); exit(1); } @@ -338,6 +347,19 @@ int check_crc(unsigned char *fw, int len) return ret; } +void check_image(unsigned char *fw, int len) +{ + struct file_entry *fent; + char *last_name = NULL; + + /* get_next_file will abort on error */ + fent = get_next_file(fw, len); + while (fent != NULL) { + last_name = fent->name; + fent = get_next_file(NULL, 0); + } +} + int main(int argc, char **argv) { struct stat statbuf; @@ -354,11 +376,12 @@ int main(int argc, char **argv) int patch_bd = 0; int patch_fw = 0; int extract = 0; + int list = 0; if (argc < 2) syntax(argv[0]); - while ((opt = getopt(argc, argv, "dubet:f:w:r:")) != -1) { + while ((opt = getopt(argc, argv, "dubelt:f:w:r:x:")) != -1) { switch(opt) { case 'd': showall = 1; @@ -372,6 +395,9 @@ int main(int argc, char **argv) case 'e': extract = 1; break; + case 'l': + list = 1; + break; case 't': case 'f': case 'w': @@ -379,6 +405,9 @@ int main(int argc, char **argv) patch_fw = 1; add_action(opt, optarg, &paction); break; + case 'x': + replace_add_file(NULL, 0, NULL, NULL); + break; default: syntax(argv[0]); } @@ -426,10 +455,12 @@ int main(int argc, char **argv) exit(1); } + check_image(fw, statbuf.st_size - 4); + if (patch_fw) { struct propaction *cpaction = paction; - change_properties(fw, statbuf.st_size, paction); + change_properties(fw, statbuf.st_size - 4, paction); printf("\nProperty change results:\n"); while(cpaction != NULL) { @@ -453,16 +484,20 @@ int main(int argc, char **argv) } if (patch_bd) { - handle_boarddescription(fw, statbuf.st_size -4, 1); + handle_boarddescription(fw, statbuf.st_size - 4, 1); } if (showall) { show_properties(fw, statbuf.st_size - 4); - handle_boarddescription(fw, statbuf.st_size -4, 0); + handle_boarddescription(fw, statbuf.st_size - 4, 0); + } + + if (list) { + list_files(fw, statbuf.st_size - 4); } if (extract) { - search_lz_sections(fw, statbuf.st_size - 4); + extract_files(fw, statbuf.st_size - 4); } if (update_crc || patch_fw || patch_bd) { @@ -471,6 +506,8 @@ int main(int argc, char **argv) *((unsigned int*)(fw + statbuf.st_size - 4)) = crc; } + check_image(fw, statbuf.st_size-4); + if (check_crc(fw, statbuf.st_size) == 0) { char *newfile; @@ -482,23 +519,8 @@ int main(int argc, char **argv) strcpy(newfile, file); strcat(newfile, ".patched"); - printf("Writing %s\n", newfile); - if ((fd = open(newfile, O_WRONLY|O_CREAT, 0644)) == -1) { - fprintf(stderr,"%s: ", file); - perror("open"); - exit(1); - } - - remaining = statbuf.st_size; - - while(remaining) { - if ((ret = write(fd, fw + (statbuf.st_size - remaining), remaining)) == -1) { - perror("write"); - exit(1); - } - remaining -= ret; - } - close(fd); + printf("Firmware "); + write_file(newfile, fw, statbuf.st_size); } else { fprintf(stderr,"Can't set correct checksum, aborting...\n"); }