From ebdcc6d40c1abb39c248b90e83f653ffd429578a Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 6 Dec 2006 23:41:38 +0000 Subject: move target/utils to tools/firmware-utils SVN-Revision: 5702 --- target/utils/src/dgfirmware.c | 376 ------------------------------------------ 1 file changed, 376 deletions(-) delete mode 100644 target/utils/src/dgfirmware.c (limited to 'target/utils/src/dgfirmware.c') diff --git a/target/utils/src/dgfirmware.c b/target/utils/src/dgfirmware.c deleted file mode 100644 index 5ff3b69646..0000000000 --- a/target/utils/src/dgfirmware.c +++ /dev/null @@ -1,376 +0,0 @@ -#include -#include - - -#define IMG_SIZE 0x3e0000 - -#define KERNEL_START 0x020000 -#define KERNEL_SIZE 0x0b0000 - -#define ROOTFS_START 0x0d0000 -#define ROOTFS_SIZE 0x30ffb2 - -char* app_name; - - - - -void print_usage(void) -{ - fprintf(stderr, "usage: dgfirmware [] \n"); - fprintf(stderr, " firmware image filename\n"); - fprintf(stderr, " -h print this message\n"); - fprintf(stderr, " -f fix the checksum\n"); - fprintf(stderr, " -x extract the rootfs file to \n"); - fprintf(stderr, " -xk extract the kernel to \n"); - fprintf(stderr, " -m merge in rootfs fil\e from \n"); - fprintf(stderr, " -k merge in kernel from \n"); - fprintf(stderr, " -w write back the modified firmware\n"); -} - - -unsigned char* read_img(const char *fname) -{ - FILE *fp; - int size; - unsigned char *img; - - fp = fopen(fname, "rb"); - if (fp == NULL) { - perror(app_name); - exit(-1); - } - - fseek(fp, 0, SEEK_END); - size = ftell(fp); - - if (size != IMG_SIZE) { - fprintf(stderr, "%s: image file has wrong size\n", app_name); - fclose(fp); - exit(-1); - } - - rewind(fp); - - img = malloc(IMG_SIZE); - if (img == NULL) { - perror(app_name); - fclose(fp); - exit(-1); - } - - if (fread(img, 1, IMG_SIZE, fp) != IMG_SIZE) { - fprintf(stderr, "%s: can't read image file\n", app_name); - fclose(fp); - exit(-1); - } - - fclose(fp); - return img; -} - - -void write_img(unsigned char* img, const char *fname) -{ - FILE *fp; - - fp = fopen(fname, "wb"); - if (fp == NULL) { - perror(app_name); - exit(-1); - } - - if (fwrite(img, 1, IMG_SIZE, fp) != IMG_SIZE) { - fprintf(stderr, "%s: can't write image file\n", app_name); - fclose(fp); - exit(-1); - } -} - - -void write_rootfs(unsigned char* img, const char *fname) -{ - FILE *fp; - - fp = fopen(fname, "wb"); - if (fp == NULL) { - perror(app_name); - exit(-1); - } - - if (fwrite(img+ROOTFS_START, 1, ROOTFS_SIZE, fp) != ROOTFS_SIZE) { - fprintf(stderr, "%s: can't write image file\n", app_name); - fclose(fp); - exit(-1); - } -} - - -void write_kernel(unsigned char* img, const char *fname) -{ - FILE *fp; - - fp = fopen(fname, "wb"); - if (fp == NULL) { - perror(app_name); - exit(-1); - } - - if (fwrite(img+KERNEL_START, 1, KERNEL_SIZE, fp) != KERNEL_SIZE) { - fprintf(stderr, "%s: can't write kernel file\n", app_name); - fclose(fp); - exit(-1); - } -} - - -unsigned char* read_rootfs(unsigned char* img, const char *fname) -{ - FILE *fp; - int size; - int i; - - for (i=ROOTFS_START; i ROOTFS_SIZE) { - fprintf(stderr, "%s: rootfs image file is too big\n", app_name); - fclose(fp); - exit(-1); - } - - rewind(fp); - - if (fread(img+ROOTFS_START, 1, size, fp) != size) { - fprintf(stderr, "%s: can't read rootfs image file\n", app_name); - fclose(fp); - exit(-1); - } - - fclose(fp); - return img; -} - - -unsigned char* read_kernel(unsigned char* img, const char *fname) -{ - FILE *fp; - int size; - int i; - - for (i=KERNEL_START; i KERNEL_SIZE) { - fprintf(stderr, "%s: kernel binary file is too big\n", app_name); - fclose(fp); - exit(-1); - } - - rewind(fp); - - if (fread(img+KERNEL_START, 1, size, fp) != size) { - fprintf(stderr, "%s: can't read kernel file\n", app_name); - fclose(fp); - exit(-1); - } - - fclose(fp); - return img; -} - - -int get_checksum(unsigned char* img) -{ - short unsigned s; - - s = img[0x3dfffc] + (img[0x3dfffd]<<8); - - return s; -} - - -void set_checksum(unsigned char*img, unsigned short sum) -{ - img[0x3dfffc] = sum & 0xff; - img[0x3dfffd] = (sum>>8) & 0xff; -} - - -int compute_checksum(unsigned char* img) -{ - int i; - short s=0; - - for (i=0; i<0x3dfffc; i++) - s += img[i]; - - return s; -} - - -int main(int argc, char* argv[]) -{ - char *img_fname = NULL; - char *rootfs_fname = NULL; - char *kernel_fname = NULL; - char *new_img_fname = NULL; - - int do_fix_checksum = 0; - int do_write = 0; - int do_write_rootfs = 0; - int do_read_rootfs = 0; - int do_write_kernel = 0; - int do_read_kernel = 0; - - int i; - unsigned char *img; - unsigned short img_checksum; - unsigned short real_checksum; - - app_name = argv[0]; - - for (i=1; i= argc) { - fprintf(stderr, "%s: missing argument\n", app_name); - return -1; - } - do_write_rootfs = 1; - rootfs_fname = argv[i+1]; - i++; - } - else if (!strcmp(argv[i], "-xk")) { - if (i+1 >= argc) { - fprintf(stderr, "%s: missing argument\n", app_name); - return -1; - } - do_write_kernel = 1; - kernel_fname = argv[i+1]; - i++; - } - else if (!strcmp(argv[i], "-m")) { - if (i+1 >= argc) { - fprintf(stderr, "%s: missing argument\n", app_name); - return -1; - } - do_read_rootfs = 1; - rootfs_fname = argv[i+1]; - i++; - } - else if (!strcmp(argv[i], "-k")) { - if (i+1 >= argc) { - fprintf(stderr, "%s: missing argument\n", app_name); - return -1; - } - do_read_kernel = 1; - kernel_fname = argv[i+1]; - i++; - } - else if (!strcmp(argv[i], "-w")) { - if (i+1 >= argc) { - fprintf(stderr, "%s: missing argument\n", app_name); - return -1; - } - do_write = 1; - new_img_fname = argv[i+1]; - i++; - } - else if (img_fname != 0) { - fprintf(stderr, "%s: too many arguments\n", app_name); - return -1; - } - else { - img_fname = argv[i]; - } - } - - if (img_fname == NULL) { - fprintf(stderr, "%s: missing argument\n", app_name); - return -1; - } - - if ((do_read_rootfs && do_write_rootfs) || - (do_read_kernel && do_write_kernel)) { - fprintf(stderr, "%s: conflictuous options\n", app_name); - return -1; - } - - printf ("** Read firmware file\n"); - img = read_img(img_fname); - - printf ("Firmware product: %s\n", img+0x3dffbd); - printf ("Firmware version: 1.%02d.%02d\n", (img[0x3dffeb] & 0x7f), img[0x3dffec]); - - if (do_write_rootfs) { - printf ("** Write rootfs file\n"); - write_rootfs(img, rootfs_fname); - } - - if (do_write_kernel) { - printf ("** Write kernel file\n"); - write_kernel(img, kernel_fname); - } - - if (do_read_rootfs) { - printf ("** Read rootfs file\n"); - read_rootfs(img, rootfs_fname); - do_fix_checksum = 1; - } - - if (do_read_kernel) { - printf ("** Read kernel file\n"); - read_kernel(img, kernel_fname); - do_fix_checksum = 1; - } - - img_checksum = get_checksum(img); - real_checksum = compute_checksum(img); - - printf ("image checksum = %04x\n", img_checksum); - printf ("real checksum = %04x\n", real_checksum); - - if (do_fix_checksum) { - if (img_checksum != real_checksum) { - printf ("** Bad Checksum, fix it\n"); - set_checksum(img, real_checksum); - } - else { - printf ("** Checksum is correct, good\n"); - } - } - - if (do_write) { - printf ("** Write image file\n"); - write_img(img, new_img_fname); - } - - free(img); - return 0; -} - -- cgit v1.2.3