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-rw-r--r--jffsX-utils/jffs-dump.c359
1 files changed, 0 insertions, 359 deletions
diff --git a/jffsX-utils/jffs-dump.c b/jffsX-utils/jffs-dump.c
deleted file mode 100644
index 3176469..0000000
--- a/jffsX-utils/jffs-dump.c
+++ /dev/null
@@ -1,359 +0,0 @@
-/*
- * Dump JFFS filesystem.
- * Useful when it buggers up.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <unistd.h>
-#include <linux/types.h>
-#include <asm/byteorder.h>
-
-#include "common.h"
-
-#define BLOCK_SIZE 1024
-#define JFFS_MAGIC 0x34383931 /* "1984" */
-#define JFFS_MAX_NAME_LEN 256
-#define JFFS_MIN_INO 1
-#define JFFS_TRACE_INDENT 4
-#define JFFS_ALIGN_SIZE 4
-#define MAX_CHUNK_SIZE 32768
-
-/* How many padding bytes should be inserted between two chunks of data
- on the flash? */
-#define JFFS_GET_PAD_BYTES(size) ((JFFS_ALIGN_SIZE \
- - ((uint32_t)(size) % JFFS_ALIGN_SIZE)) \
- % JFFS_ALIGN_SIZE)
-
-#define JFFS_EMPTY_BITMASK 0xffffffff
-#define JFFS_MAGIC_BITMASK 0x34383931
-#define JFFS_DIRTY_BITMASK 0x00000000
-
-struct jffs_raw_inode
-{
- uint32_t magic; /* A constant magic number. */
- uint32_t ino; /* Inode number. */
- uint32_t pino; /* Parent's inode number. */
- uint32_t version; /* Version number. */
- uint32_t mode; /* file_type, mode */
- uint16_t uid;
- uint16_t gid;
- uint32_t atime;
- uint32_t mtime;
- uint32_t ctime;
- uint32_t offset; /* Where to begin to write. */
- uint32_t dsize; /* Size of the file data. */
- uint32_t rsize; /* How much are going to be replaced? */
- uint8_t nsize; /* Name length. */
- uint8_t nlink; /* Number of links. */
- uint8_t spare : 6; /* For future use. */
- uint8_t rename : 1; /* Is this a special rename? */
- uint8_t deleted : 1; /* Has this file been deleted? */
- uint8_t accurate; /* The inode is obsolete if accurate == 0. */
- uint32_t dchksum; /* Checksum for the data. */
- uint16_t nchksum; /* Checksum for the name. */
- uint16_t chksum; /* Checksum for the raw_inode. */
-};
-
-
-struct jffs_file
-{
- struct jffs_raw_inode inode;
- char *name;
- unsigned char *data;
-};
-
-
-char *root_directory_name = NULL;
-int fs_pos = 0;
-int verbose = 0;
-
-#define ENDIAN_HOST 0
-#define ENDIAN_BIG 1
-#define ENDIAN_LITTLE 2
-int endian = ENDIAN_HOST;
-
-static uint32_t jffs_checksum(void *data, int size);
-void jffs_print_trace(const char *path, int depth);
-int make_root_dir(FILE *fs, int first_ino, const char *root_dir_path,
- int depth);
-void write_file(struct jffs_file *f, FILE *fs, struct stat st);
-void read_data(struct jffs_file *f, const char *path, int offset);
-int mkfs(FILE *fs, const char *path, int ino, int parent, int depth);
-
-
- static uint32_t
-jffs_checksum(void *data, int size)
-{
- uint32_t sum = 0;
- uint8_t *ptr = (uint8_t *)data;
-
- while (size-- > 0)
- {
- sum += *ptr++;
- }
-
- return sum;
-}
-
-
- void
-jffs_print_trace(const char *path, int depth)
-{
- int path_len = strlen(path);
- int out_pos = depth * JFFS_TRACE_INDENT;
- int pos = path_len - 1;
- char *out = (char *)alloca(depth * JFFS_TRACE_INDENT + path_len + 1);
-
- if (verbose >= 2)
- {
- fprintf(stderr, "jffs_print_trace(): path: \"%s\"\n", path);
- }
-
- if (!out) {
- fprintf(stderr, "jffs_print_trace(): Allocation failed.\n");
- fprintf(stderr, " path: \"%s\"\n", path);
- fprintf(stderr, "depth: %d\n", depth);
- exit(1);
- }
-
- memset(out, ' ', depth * JFFS_TRACE_INDENT);
-
- if (path[pos] == '/')
- {
- pos--;
- }
- while (path[pos] && (path[pos] != '/'))
- {
- pos--;
- }
- for (pos++; path[pos] && (path[pos] != '/'); pos++)
- {
- out[out_pos++] = path[pos];
- }
- out[out_pos] = '\0';
- fprintf(stderr, "%s\n", out);
-}
-
-
-/* Print the contents of a raw inode. */
- void
-jffs_print_raw_inode(struct jffs_raw_inode *raw_inode)
-{
- fprintf(stdout, "jffs_raw_inode: inode number: %u, version %u\n", raw_inode->ino, raw_inode->version);
- fprintf(stdout, "{\n");
- fprintf(stdout, " 0x%08x, /* magic */\n", raw_inode->magic);
- fprintf(stdout, " 0x%08x, /* ino */\n", raw_inode->ino);
- fprintf(stdout, " 0x%08x, /* pino */\n", raw_inode->pino);
- fprintf(stdout, " 0x%08x, /* version */\n", raw_inode->version);
- fprintf(stdout, " 0x%08x, /* mode */\n", raw_inode->mode);
- fprintf(stdout, " 0x%04x, /* uid */\n", raw_inode->uid);
- fprintf(stdout, " 0x%04x, /* gid */\n", raw_inode->gid);
- fprintf(stdout, " 0x%08x, /* atime */\n", raw_inode->atime);
- fprintf(stdout, " 0x%08x, /* mtime */\n", raw_inode->mtime);
- fprintf(stdout, " 0x%08x, /* ctime */\n", raw_inode->ctime);
- fprintf(stdout, " 0x%08x, /* offset */\n", raw_inode->offset);
- fprintf(stdout, " 0x%08x, /* dsize */\n", raw_inode->dsize);
- fprintf(stdout, " 0x%08x, /* rsize */\n", raw_inode->rsize);
- fprintf(stdout, " 0x%02x, /* nsize */\n", raw_inode->nsize);
- fprintf(stdout, " 0x%02x, /* nlink */\n", raw_inode->nlink);
- fprintf(stdout, " 0x%02x, /* spare */\n",
- raw_inode->spare);
- fprintf(stdout, " %u, /* rename */\n",
- raw_inode->rename);
- fprintf(stdout, " %u, /* deleted */\n",
- raw_inode->deleted);
- fprintf(stdout, " 0x%02x, /* accurate */\n",
- raw_inode->accurate);
- fprintf(stdout, " 0x%08x, /* dchksum */\n", raw_inode->dchksum);
- fprintf(stdout, " 0x%04x, /* nchksum */\n", raw_inode->nchksum);
- fprintf(stdout, " 0x%04x, /* chksum */\n", raw_inode->chksum);
- fprintf(stdout, "}\n");
-}
-
-static void write_val32(uint32_t *adr, uint32_t val)
-{
- switch(endian) {
- case ENDIAN_HOST:
- *adr = val;
- break;
- case ENDIAN_LITTLE:
- *adr = __cpu_to_le32(val);
- break;
- case ENDIAN_BIG:
- *adr = __cpu_to_be32(val);
- break;
- }
-}
-
-static void write_val16(uint16_t *adr, uint16_t val)
-{
- switch(endian) {
- case ENDIAN_HOST:
- *adr = val;
- break;
- case ENDIAN_LITTLE:
- *adr = __cpu_to_le16(val);
- break;
- case ENDIAN_BIG:
- *adr = __cpu_to_be16(val);
- break;
- }
-}
-
-static uint32_t read_val32(uint32_t *adr)
-{
- uint32_t val;
-
- switch(endian) {
- case ENDIAN_HOST:
- val = *adr;
- break;
- case ENDIAN_LITTLE:
- val = __le32_to_cpu(*adr);
- break;
- case ENDIAN_BIG:
- val = __be32_to_cpu(*adr);
- break;
- }
- return val;
-}
-
-static uint16_t read_val16(uint16_t *adr)
-{
- uint16_t val;
-
- switch(endian) {
- case ENDIAN_HOST:
- val = *adr;
- break;
- case ENDIAN_LITTLE:
- val = __le16_to_cpu(*adr);
- break;
- case ENDIAN_BIG:
- val = __be16_to_cpu(*adr);
- break;
- }
- return val;
-}
-
- int
-main(int argc, char **argv)
-{
- int fs;
- struct stat sb;
- uint32_t wordbuf;
- off_t pos = 0;
- off_t end;
- struct jffs_raw_inode ino;
- unsigned char namebuf[4096];
- int myino = -1;
-
- if (argc < 2) {
- printf("no filesystem given\n");
- exit(1);
- }
-
- fs = open(argv[1], O_RDONLY);
- if (fs < 0) {
- perror("open");
- exit(1);
- }
-
- if (argc > 2) {
- myino = atol(argv[2]);
- printf("Printing ino #%d\n" , myino);
- }
-
- if (fstat(fs, &sb) < 0) {
- perror("stat");
- close(fs);
- exit(1);
- }
- end = sb.st_size;
-
- while (pos < end) {
- if (pread(fs, &wordbuf, 4, pos) < 0) {
- perror("pread");
- exit(1);
- }
-
- switch(wordbuf) {
- case JFFS_EMPTY_BITMASK:
- // printf("0xff started at 0x%lx\n", pos);
- for (; pos < end && wordbuf == JFFS_EMPTY_BITMASK; pos += 4) {
- if (pread(fs, &wordbuf, 4, pos) < 0) {
- perror("pread");
- exit(1);
- }
- }
- if (pos < end)
- pos -= 4;
- // printf("0xff ended at 0x%lx\n", pos);
- continue;
-
- case JFFS_DIRTY_BITMASK:
- // printf("0x00 started at 0x%lx\n", pos);
- for (; pos < end && wordbuf == JFFS_DIRTY_BITMASK; pos += 4) {
- if (pread(fs, &wordbuf, 4, pos) < 0) {
- perror("pread");
- exit(1);
- }
- }
- if (pos < end)
- pos -=4;
- // printf("0x00 ended at 0x%lx\n", pos);
- continue;
-
- default:
- printf("Argh. Dirty memory at 0x%lx\n", pos);
- // file_hexdump(fs, pos, 128);
- for (pos += 4; pos < end; pos += 4) {
- if (pread(fs, &wordbuf, 4, pos) < 0) {
- perror("pread");
- exit(1);
- }
- if (wordbuf == JFFS_MAGIC_BITMASK)
- break;
- }
-
- case JFFS_MAGIC_BITMASK:
- if (pread(fs, &ino, sizeof(ino), pos) < 0) {
- perror("pread");
- exit(1);
- }
- if (myino == -1 || ino.ino == myino) {
- printf("Magic found at 0x%lx\n", pos);
- jffs_print_raw_inode(&ino);
- }
- pos += sizeof(ino);
-
- if (myino == -1 || ino.ino == myino) {
- if (ino.nsize) {
- if (pread(fs, namebuf, min(ino.nsize, 4095), pos) < 0) {
- perror("pread");
- exit(1);
- }
- if (ino.nsize < 4095)
- namebuf[ino.nsize] = 0;
- else
- namebuf[4095] = 0;
- printf("Name: \"%s\"\n", namebuf);
- } else {
- printf("No Name\n");
- }
- }
- pos += (ino.nsize + 3) & ~3;
-
- pos += (ino.dsize + 3) & ~3;
- }
-
-
-
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 12:32:03 +0000