#include <byteswap.h>
#include <endian.h>
#include <errno.h>
+#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#if __BYTE_ORDER == __BIG_ENDIAN
#define cpu_to_le32(x) bswap_32(x)
#define le32_to_cpu(x) bswap_32(x)
+#define cpu_to_be32(x) (x)
+#define be32_to_cpu(x) (x)
+#define cpu_to_le16(x) bswap_16(x)
+#define le16_to_cpu(x) bswap_16(x)
+#define cpu_to_be16(x) (x)
+#define be16_to_cpu(x) (x)
#elif __BYTE_ORDER == __LITTLE_ENDIAN
#define cpu_to_le32(x) (x)
#define le32_to_cpu(x) (x)
+#define cpu_to_be32(x) bswap_32(x)
+#define be32_to_cpu(x) bswap_32(x)
+#define cpu_to_le16(x) (x)
+#define le16_to_cpu(x) (x)
+#define cpu_to_be16(x) bswap_16(x)
+#define be16_to_cpu(x) bswap_16(x)
#else
#error "Unsupported endianness"
#endif
#define WFI_FLAG_HAS_PMC 0x1
#define WFI_FLAG_SUPPORTS_BTRM 0x2
+#define UBI_EC_HDR_MAGIC 0x55424923
+
+static int debug;
+
struct bcm4908img_tail {
uint32_t crc32;
uint32_t version;
uint32_t flags;
};
+/**
+ * struct bcm4908img_info - info about BCM4908 image
+ *
+ * Standard BCM4908 image consists of:
+ * 1. (Optional) vedor header
+ * 2. (Optional) cferom
+ * 3. bootfs ─┐
+ * 4. padding ├─ firmware
+ * 5. rootfs ─┘
+ * 6. BCM4908 tail
+ */
+struct bcm4908img_info {
+ size_t file_size;
+ size_t cferom_offset;
+ size_t bootfs_offset;
+ size_t rootfs_offset;
+ uint32_t crc32; /* Calculated checksum */
+ struct bcm4908img_tail tail;
+};
+
char *pathname;
-static size_t prefix_len;
-static size_t suffix_len;
static inline size_t bcm4908img_min(size_t x, size_t y) {
return x < y ? x : y;
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
};
-uint32_t bcm4908img_crc32(uint32_t crc, uint8_t *buf, size_t len) {
+uint32_t bcm4908img_crc32(uint32_t crc, const void *buf, size_t len) {
+ const uint8_t *in = buf;
+
while (len) {
- crc = crc32_tbl[(crc ^ *buf) & 0xff] ^ (crc >> 8);
- buf++;
+ crc = crc32_tbl[(crc ^ *in) & 0xff] ^ (crc >> 8);
+ in++;
len--;
}
}
/**************************************************
- * Check
+ * Helpers
**************************************************/
-static void bcm4908img_check_parse_options(int argc, char **argv) {
- int c;
+static FILE *bcm4908img_open(const char *pathname, const char *mode) {
+ struct stat st;
- while ((c = getopt(argc, argv, "p:s:")) != -1) {
- switch (c) {
- case 'p':
- prefix_len = atoi(optarg);
- break;
- case 's':
- suffix_len = atoi(optarg);
- break;
- }
+ if (pathname)
+ return fopen(pathname, mode);
+
+ if (isatty(fileno(stdin))) {
+ fprintf(stderr, "Reading from TTY stdin is unsupported\n");
+ return NULL;
+ }
+
+ if (fstat(fileno(stdin), &st)) {
+ fprintf(stderr, "Failed to fstat stdin: %d\n", -errno);
+ return NULL;
}
+
+ if (S_ISFIFO(st.st_mode)) {
+ fprintf(stderr, "Reading from pipe stdin is unsupported\n");
+ return NULL;
+ }
+
+ return stdin;
}
-static int bcm4908img_check(int argc, char **argv) {
- struct bcm4908img_tail tail;
+static void bcm4908img_close(FILE *fp) {
+ if (fp != stdin)
+ fclose(fp);
+}
+
+static int bcm4908img_calc_crc32(FILE *fp, struct bcm4908img_info *info) {
+ uint8_t buf[1024];
+ size_t length;
+ size_t bytes;
+
+ /* Start with cferom (or bootfs) - skip vendor header */
+ fseek(fp, info->cferom_offset, SEEK_SET);
+
+ info->crc32 = 0xffffffff;
+ length = info->file_size - info->cferom_offset - sizeof(struct bcm4908img_tail);
+ while (length && (bytes = fread(buf, 1, bcm4908img_min(sizeof(buf), length), fp)) > 0) {
+ info->crc32 = bcm4908img_crc32(info->crc32, buf, bytes);
+ length -= bytes;
+ }
+ if (length) {
+ fprintf(stderr, "Failed to read last %zd B of data\n", length);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/**************************************************
+ * Existing firmware parser
+ **************************************************/
+
+struct chk_header {
+ uint32_t magic;
+ uint32_t header_len;
+ uint8_t reserved[8];
+ uint32_t kernel_chksum;
+ uint32_t rootfs_chksum;
+ uint32_t kernel_len;
+ uint32_t rootfs_len;
+ uint32_t image_chksum;
+ uint32_t header_chksum;
+ char board_id[0];
+};
+
+static int bcm4908img_parse(FILE *fp, struct bcm4908img_info *info) {
+ struct bcm4908img_tail *tail = &info->tail;
+ struct chk_header *chk;
struct stat st;
uint8_t buf[1024];
- uint32_t crc32;
+ uint16_t tmp16;
size_t length;
size_t bytes;
- FILE *fp;
int err = 0;
- if (argc < 3) {
- fprintf(stderr, "No BCM4908 image pathname passed\n");
- err = -EINVAL;
- goto out;
+ memset(info, 0, sizeof(*info));
+
+ /* File size */
+
+ if (fstat(fileno(fp), &st)) {
+ err = -errno;
+ fprintf(stderr, "Failed to fstat: %d\n", err);
+ return err;
}
- pathname = argv[2];
+ info->file_size = st.st_size;
- optind = 3;
- bcm4908img_check_parse_options(argc, argv);
+ /* Vendor formats */
- if (stat(pathname, &st)) {
- fprintf(stderr, "Failed to stat %s\n", pathname);
- err = -EIO;
- goto out;
+ rewind(fp);
+ if (fread(buf, 1, sizeof(buf), fp) != sizeof(buf)) {
+ fprintf(stderr, "Failed to read file header\n");
+ return -EIO;
+ }
+ chk = (void *)buf;
+ if (be32_to_cpu(chk->magic) == 0x2a23245e)
+ info->cferom_offset = be32_to_cpu(chk->header_len);
+
+ /* Offsets */
+
+ for (info->bootfs_offset = info->cferom_offset;
+ info->bootfs_offset < info->file_size;
+ info->bootfs_offset += 0x20000) {
+ if (fseek(fp, info->bootfs_offset, SEEK_SET)) {
+ err = -errno;
+ fprintf(stderr, "Failed to fseek to the 0x%zx\n", info->bootfs_offset);
+ return err;
+ }
+ if (fread(&tmp16, 1, sizeof(tmp16), fp) != sizeof(tmp16)) {
+ fprintf(stderr, "Failed to read while looking for JFFS2\n");
+ return -EIO;
+ }
+ if (be16_to_cpu(tmp16) == 0x8519)
+ break;
+ }
+ if (info->bootfs_offset >= info->file_size) {
+ fprintf(stderr, "Failed to find bootfs offset\n");
+ return -EPROTO;
}
- fp = fopen(pathname, "r");
- if (!fp) {
- fprintf(stderr, "Failed to open %s\n", pathname);
- err = -EACCES;
- goto out;
+ for (info->rootfs_offset = info->bootfs_offset;
+ info->rootfs_offset < info->file_size;
+ info->rootfs_offset += 0x20000) {
+ uint32_t magic;
+
+ if (fseek(fp, info->rootfs_offset, SEEK_SET)) {
+ err = -errno;
+ fprintf(stderr, "Failed to fseek: %d\n", err);
+ return err;
+ }
+
+ bytes = fread(&magic, 1, sizeof(magic), fp);
+ if (bytes != sizeof(magic)) {
+ fprintf(stderr, "Failed to read %zu bytes\n", sizeof(magic));
+ return -EIO;
+ }
+
+ if (be32_to_cpu(magic) == UBI_EC_HDR_MAGIC)
+ break;
}
+ if (info->rootfs_offset >= info->file_size) {
+ fprintf(stderr, "Failed to find rootfs offset\n");
+ return -EPROTO;
+ }
+
+ /* CRC32 */
- fseek(fp, prefix_len, SEEK_SET);
+ /* Start with cferom (or bootfs) - skip vendor header */
+ fseek(fp, info->cferom_offset, SEEK_SET);
- crc32 = 0xffffffff;
- length = st.st_size - prefix_len - sizeof(tail) - suffix_len;
+ info->crc32 = 0xffffffff;
+ length = info->file_size - info->cferom_offset - sizeof(*tail);
while (length && (bytes = fread(buf, 1, bcm4908img_min(sizeof(buf), length), fp)) > 0) {
- crc32 = bcm4908img_crc32(crc32, buf, bytes);
+ info->crc32 = bcm4908img_crc32(info->crc32, buf, bytes);
length -= bytes;
}
-
if (length) {
- fprintf(stderr, "Failed to read last %zd B of data from %s\n", length, pathname);
- err = -EIO;
- goto err_close;
+ fprintf(stderr, "Failed to read last %zd B of data\n", length);
+ return -EIO;
}
- if (fread(&tail, 1, sizeof(tail), fp) != sizeof(tail)) {
+ /* Tail */
+
+ if (fread(tail, 1, sizeof(*tail), fp) != sizeof(*tail)) {
fprintf(stderr, "Failed to read BCM4908 image tail\n");
- err = -EIO;
- goto err_close;
+ return -EIO;
+ }
+
+ /* Standard validation */
+
+ if (info->crc32 != le32_to_cpu(tail->crc32)) {
+ fprintf(stderr, "Invalid data crc32: 0x%08x instead of 0x%08x\n", info->crc32, le32_to_cpu(tail->crc32));
+ return -EPROTO;
+ }
+
+ return 0;
+}
+
+/**************************************************
+ * Info
+ **************************************************/
+
+static int bcm4908img_info(int argc, char **argv) {
+ struct bcm4908img_info info;
+ const char *pathname = NULL;
+ FILE *fp;
+ int c;
+ int err = 0;
+
+ while ((c = getopt(argc, argv, "i:")) != -1) {
+ switch (c) {
+ case 'i':
+ pathname = optarg;
+ break;
+ }
+ }
+
+ fp = bcm4908img_open(pathname, "r");
+ if (!fp) {
+ fprintf(stderr, "Failed to open BCM4908 image\n");
+ err = -EACCES;
+ goto out;
}
- if (crc32 != le32_to_cpu(tail.crc32)) {
- fprintf(stderr, "Invalid data crc32: 0x%08x instead of 0x%08x\n", crc32, le32_to_cpu(tail.crc32));
- err = -EPROTO;
+ err = bcm4908img_parse(fp, &info);
+ if (err) {
+ fprintf(stderr, "Failed to parse BCM4908 image\n");
goto err_close;
}
- printf("Found a valid BCM4908 image (crc: 0x%08x)\n", crc32);
+ if (info.bootfs_offset != info.cferom_offset)
+ printf("cferom offset:\t%zu\n", info.cferom_offset);
+ printf("bootfs offset:\t0x%zx\n", info.bootfs_offset);
+ printf("rootfs offset:\t0x%zx\n", info.rootfs_offset);
+ printf("Checksum:\t0x%08x\n", info.crc32);
err_close:
- fclose(fp);
+ bcm4908img_close(fp);
out:
return err;
}
return err;
}
+/**************************************************
+ * Extract
+ **************************************************/
+
+static int bcm4908img_extract(int argc, char **argv) {
+ struct bcm4908img_info info;
+ const char *pathname = NULL;
+ uint8_t buf[1024];
+ const char *type;
+ size_t offset;
+ size_t length;
+ size_t bytes;
+ FILE *fp;
+ int c;
+ int err = 0;
+
+ while ((c = getopt(argc, argv, "i:t:")) != -1) {
+ switch (c) {
+ case 'i':
+ pathname = optarg;
+ break;
+ case 't':
+ type = optarg;
+ break;
+ }
+ }
+
+ fp = bcm4908img_open(pathname, "r");
+ if (!fp) {
+ fprintf(stderr, "Failed to open BCM4908 image\n");
+ err = -EACCES;
+ goto err_out;
+ }
+
+ err = bcm4908img_parse(fp, &info);
+ if (err) {
+ fprintf(stderr, "Failed to parse BCM4908 image\n");
+ goto err_close;
+ }
+
+ if (!strcmp(type, "cferom")) {
+ offset = info.cferom_offset;
+ length = info.bootfs_offset - offset;
+ if (!length) {
+ err = -ENOENT;
+ fprintf(stderr, "This BCM4908 image doesn't contain cferom\n");
+ goto err_close;
+ }
+ } else if (!strcmp(type, "bootfs")) {
+ offset = info.bootfs_offset;
+ length = info.rootfs_offset - offset;
+ } else if (!strcmp(type, "rootfs")) {
+ offset = info.rootfs_offset;
+ length = info.file_size - offset - sizeof(struct bcm4908img_tail);
+ } else if (!strcmp(type, "firmware")) {
+ offset = info.bootfs_offset;
+ length = info.file_size - offset - sizeof(struct bcm4908img_tail);
+ } else {
+ err = -EINVAL;
+ fprintf(stderr, "Unsupported extract type: %s\n", type);
+ goto err_close;
+ }
+
+ if (!length) {
+ err = -EINVAL;
+ fprintf(stderr, "No data to extract specified\n");
+ goto err_close;
+ }
+
+ fseek(fp, offset, SEEK_SET);
+ while (length && (bytes = fread(buf, 1, bcm4908img_min(sizeof(buf), length), fp)) > 0) {
+ fwrite(buf, bytes, 1, stdout);
+ length -= bytes;
+ }
+ if (length) {
+ err = -EIO;
+ fprintf(stderr, "Failed to read last %zd B of data\n", length);
+ goto err_close;
+ }
+
+err_close:
+ bcm4908img_close(fp);
+err_out:
+ return err;
+}
+
+/**************************************************
+ * bootfs
+ **************************************************/
+
+#define JFFS2_MAGIC_BITMASK 0x1985
+
+#define JFFS2_COMPR_NONE 0x00
+#define JFFS2_COMPR_ZERO 0x01
+#define JFFS2_COMPR_RTIME 0x02
+#define JFFS2_COMPR_RUBINMIPS 0x03
+#define JFFS2_COMPR_COPY 0x04
+#define JFFS2_COMPR_DYNRUBIN 0x05
+#define JFFS2_COMPR_ZLIB 0x06
+#define JFFS2_COMPR_LZO 0x07
+/* Compatibility flags. */
+#define JFFS2_COMPAT_MASK 0xc000 /* What do to if an unknown nodetype is found */
+#define JFFS2_NODE_ACCURATE 0x2000
+/* INCOMPAT: Fail to mount the filesystem */
+#define JFFS2_FEATURE_INCOMPAT 0xc000
+/* ROCOMPAT: Mount read-only */
+#define JFFS2_FEATURE_ROCOMPAT 0x8000
+/* RWCOMPAT_COPY: Mount read/write, and copy the node when it's GC'd */
+#define JFFS2_FEATURE_RWCOMPAT_COPY 0x4000
+/* RWCOMPAT_DELETE: Mount read/write, and delete the node when it's GC'd */
+#define JFFS2_FEATURE_RWCOMPAT_DELETE 0x0000
+
+#define JFFS2_NODETYPE_DIRENT (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 1)
+
+typedef struct {
+ uint32_t v32;
+} __attribute__((packed)) jint32_t;
+
+typedef struct {
+ uint16_t v16;
+} __attribute__((packed)) jint16_t;
+
+struct jffs2_unknown_node
+{
+ /* All start like this */
+ jint16_t magic;
+ jint16_t nodetype;
+ jint32_t totlen; /* So we can skip over nodes we don't grok */
+ jint32_t hdr_crc;
+};
+
+struct jffs2_raw_dirent
+{
+ jint16_t magic;
+ jint16_t nodetype; /* == JFFS2_NODETYPE_DIRENT */
+ jint32_t totlen;
+ jint32_t hdr_crc;
+ jint32_t pino;
+ jint32_t version;
+ jint32_t ino; /* == zero for unlink */
+ jint32_t mctime;
+ uint8_t nsize;
+ uint8_t type;
+ uint8_t unused[2];
+ jint32_t node_crc;
+ jint32_t name_crc;
+ uint8_t name[0];
+};
+
+#define je16_to_cpu(x) ((x).v16)
+#define je32_to_cpu(x) ((x).v32)
+
+static int bcm4908img_bootfs_ls(FILE *fp, struct bcm4908img_info *info) {
+ struct jffs2_unknown_node node;
+ struct jffs2_raw_dirent dirent;
+ size_t offset;
+ size_t bytes;
+ int err = 0;
+
+ for (offset = info->bootfs_offset; ; offset += (je32_to_cpu(node.totlen) + 0x03) & ~0x03) {
+ char name[FILENAME_MAX + 1];
+
+ if (fseek(fp, offset, SEEK_SET)) {
+ err = -errno;
+ fprintf(stderr, "Failed to fseek: %d\n", err);
+ return err;
+ }
+
+ bytes = fread(&node, 1, sizeof(node), fp);
+ if (bytes != sizeof(node)) {
+ fprintf(stderr, "Failed to read %zu bytes\n", sizeof(node));
+ return -EIO;
+ }
+
+ if (je16_to_cpu(node.magic) != JFFS2_MAGIC_BITMASK) {
+ break;
+ }
+
+ if (je16_to_cpu(node.nodetype) != JFFS2_NODETYPE_DIRENT) {
+ continue;
+ }
+
+ memcpy(&dirent, &node, sizeof(node));
+ bytes += fread((uint8_t *)&dirent + sizeof(node), 1, sizeof(dirent) - sizeof(node), fp);
+ if (bytes != sizeof(dirent)) {
+ fprintf(stderr, "Failed to read %zu bytes\n", sizeof(node));
+ return -EIO;
+ }
+
+ if (dirent.nsize + 1 > sizeof(name)) {
+ /* Keep reading & printing BUT exit with error code */
+ fprintf(stderr, "Too long filename\n");
+ err = -ENOMEM;
+ continue;
+ }
+
+ bytes = fread(name, 1, dirent.nsize, fp);
+ if (bytes != dirent.nsize) {
+ fprintf(stderr, "Failed to read filename\n");
+ return -EIO;
+ }
+ name[bytes] = '\0';
+
+ printf("%s\n", name);
+ }
+
+ return err;
+}
+
+static int bcm4908img_bootfs_mv(FILE *fp, struct bcm4908img_info *info, int argc, char **argv) {
+ struct jffs2_unknown_node node;
+ struct jffs2_raw_dirent dirent;
+ const char *oldname;
+ const char *newname;
+ size_t offset;
+ size_t bytes;
+ int err = -ENOENT;
+
+ if (argc - optind < 2) {
+ fprintf(stderr, "No enough arguments passed\n");
+ return -EINVAL;
+ }
+ oldname = argv[optind++];
+ newname = argv[optind++];
+
+ if (strlen(newname) != strlen(oldname)) {
+ fprintf(stderr, "New filename must have the same length as the old one\n");
+ return -EINVAL;
+ }
+
+ for (offset = info->bootfs_offset; ; offset += (je32_to_cpu(node.totlen) + 0x03) & ~0x03) {
+ char name[FILENAME_MAX];
+ uint32_t crc32;
+
+ if (fseek(fp, offset, SEEK_SET)) {
+ err = -errno;
+ fprintf(stderr, "Failed to fseek: %d\n", err);
+ return err;
+ }
+
+ bytes = fread(&node, 1, sizeof(node), fp);
+ if (bytes != sizeof(node)) {
+ fprintf(stderr, "Failed to read %zu bytes\n", sizeof(node));
+ return -EIO;
+ }
+
+ if (je16_to_cpu(node.magic) != JFFS2_MAGIC_BITMASK) {
+ break;
+ }
+
+ if (je16_to_cpu(node.nodetype) != JFFS2_NODETYPE_DIRENT) {
+ continue;
+ }
+
+ bytes += fread((uint8_t *)&dirent + sizeof(node), 1, sizeof(dirent) - sizeof(node), fp);
+ if (bytes != sizeof(dirent)) {
+ fprintf(stderr, "Failed to read %zu bytes\n", sizeof(node));
+ return -EIO;
+ }
+
+ if (dirent.nsize + 1 > sizeof(name)) {
+ fprintf(stderr, "Too long filename\n");
+ err = -ENOMEM;
+ continue;
+ }
+
+ bytes = fread(name, 1, dirent.nsize, fp);
+ if (bytes != dirent.nsize) {
+ fprintf(stderr, "Failed to read filename\n");
+ return -EIO;
+ }
+ name[bytes] = '\0';
+
+ if (debug)
+ printf("offset:%08zx name_crc:%04x filename:%s\n", offset, je32_to_cpu(dirent.name_crc), name);
+
+ if (strcmp(name, oldname)) {
+ continue;
+ }
+
+ if (fseek(fp, offset + offsetof(struct jffs2_raw_dirent, name_crc), SEEK_SET)) {
+ err = -errno;
+ fprintf(stderr, "Failed to fseek: %d\n", err);
+ return err;
+ }
+ crc32 = bcm4908img_crc32(0, newname, dirent.nsize);
+ bytes = fwrite(&crc32, 1, sizeof(crc32), fp);
+ if (bytes != sizeof(crc32)) {
+ fprintf(stderr, "Failed to write new CRC32\n");
+ return -EIO;
+ }
+
+ if (fseek(fp, offset + offsetof(struct jffs2_raw_dirent, name), SEEK_SET)) {
+ err = -errno;
+ fprintf(stderr, "Failed to fseek: %d\n", err);
+ return err;
+ }
+ bytes = fwrite(newname, 1, dirent.nsize, fp);
+ if (bytes != dirent.nsize) {
+ fprintf(stderr, "Failed to write new filename\n");
+ return -EIO;
+ }
+
+ /* Calculate new BCM4908 image checksum */
+
+ err = bcm4908img_calc_crc32(fp, info);
+ if (err) {
+ fprintf(stderr, "Failed to write new filename\n");
+ return err;
+ }
+
+ info->tail.crc32 = cpu_to_le32(info->crc32);
+ if (fseek(fp, -sizeof(struct bcm4908img_tail), SEEK_END)) {
+ err = -errno;
+ fprintf(stderr, "Failed to write new filename\n");
+ return err;
+ }
+
+ if (fwrite(&info->tail, 1, sizeof(struct bcm4908img_tail), fp) != sizeof(struct bcm4908img_tail)) {
+ fprintf(stderr, "Failed to write updated tail\n");
+ return -EIO;
+ }
+
+ printf("Successfully renamed %s to the %s\n", oldname, newname);
+
+ return 0;
+ }
+
+ fprintf(stderr, "Failed to find %s\n", oldname);
+
+ return -ENOENT;
+}
+
+static int bcm4908img_bootfs(int argc, char **argv) {
+ struct bcm4908img_info info;
+ const char *pathname = NULL;
+ const char *mode;
+ const char *cmd;
+ FILE *fp;
+ int c;
+ int err = 0;
+
+ while ((c = getopt(argc, argv, "i:")) != -1) {
+ switch (c) {
+ case 'i':
+ pathname = optarg;
+ break;
+ }
+ }
+
+ if (argc - optind < 1) {
+ fprintf(stderr, "No bootfs command specified\n");
+ err = -EINVAL;
+ goto out;
+ }
+ cmd = argv[optind++];
+
+ mode = strcmp(cmd, "mv") ? "r" : "r+";
+ fp = bcm4908img_open(pathname, mode);
+ if (!fp) {
+ fprintf(stderr, "Failed to open BCM4908 image\n");
+ err = -EACCES;
+ goto out;
+ }
+
+ err = bcm4908img_parse(fp, &info);
+ if (err) {
+ fprintf(stderr, "Failed to parse BCM4908 image\n");
+ goto err_close;
+ }
+
+ if (!strcmp(cmd, "ls")) {
+ err = bcm4908img_bootfs_ls(fp, &info);
+ } else if (!strcmp(cmd, "mv")) {
+ err = bcm4908img_bootfs_mv(fp, &info, argc, argv);
+ } else {
+ err = -EINVAL;
+ fprintf(stderr, "Unsupported bootfs command: %s\n", cmd);
+ }
+
+err_close:
+ bcm4908img_close(fp);
+out:
+ return err;
+}
+
/**************************************************
* Start
**************************************************/
static void usage() {
printf("Usage:\n");
printf("\n");
- printf("Checking a BCM4908 image:\n");
- printf("\tbcm4908img check <file> [options]\tcheck if images is valid\n");
- printf("\t-p prefix\t\t\tlength of custom header to skip (default: 0)\n");
- printf("\t-s suffix\t\t\tlength of custom tail to skip (default: 0)\n");
+ printf("Info about a BCM4908 image:\n");
+ printf("\tbcm4908img info <options>\n");
+ printf("\t-i <file>\t\t\t\tinput BCM490 image\n");
printf("\n");
printf("Creating a new BCM4908 image:\n");
printf("\tbcm4908img create <file> [options]\n");
printf("\t-f file\t\t\t\tadd data from specified file\n");
printf("\t-a alignment\t\t\tpad image with zeros to specified alignment\n");
printf("\t-A offset\t\t\t\tappend zeros until reaching specified offset\n");
+ printf("\n");
+ printf("Extracting from a BCM4908 image:\n");
+ printf("\tbcm4908img extract <options>\n");
+ printf("\t-i <file>\t\t\t\tinput BCM490 image\n");
+ printf("\t-t <type>\t\t\t\tone of: cferom, bootfs, rootfs, firmware\n");
+ printf("\n");
+ printf("Access bootfs in a BCM4908 image:\n");
+ printf("\tbcm4908img bootfs <options> <command> <arguments>\n");
+ printf("\t-i <file>\t\t\t\tinput BCM490 image\n");
+ printf("\tls\t\t\t\t\tlist bootfs files\n");
+ printf("\tmv <source> <dest>\t\t\trename bootfs file\n");
}
int main(int argc, char **argv) {
if (argc > 1) {
- if (!strcmp(argv[1], "check"))
- return bcm4908img_check(argc, argv);
+ optind++;
+ if (!strcmp(argv[1], "info"))
+ return bcm4908img_info(argc, argv);
else if (!strcmp(argv[1], "create"))
return bcm4908img_create(argc, argv);
+ else if (!strcmp(argv[1], "extract"))
+ return bcm4908img_extract(argc, argv);
+ else if (!strcmp(argv[1], "bootfs"))
+ return bcm4908img_bootfs(argc, argv);
}
usage();
projects / openwrt / staging / hauke.git / blobdiff