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Diffstat (limited to 'ubi-utils/src/unubi.c')
| -rw-r--r-- | ubi-utils/src/unubi.c | 1024 |
1 files changed, 0 insertions, 1024 deletions
diff --git a/ubi-utils/src/unubi.c b/ubi-utils/src/unubi.c deleted file mode 100644 index 0f72b18..0000000 --- a/ubi-utils/src/unubi.c +++ /dev/null @@ -1,1024 +0,0 @@ -/* - * Copyright (c) International Business Machines Corp., 2006, 2007 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See - * the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -/* - * Authors: Drake Dowsett, dowsett@de.ibm.com - * Frank Haverkamp, haver@vnet.ibm.com - * - * 1.2 Removed argp because we want to use uClibc. - * 1.3 Minor cleanups. - * 1.4 Meanwhile Drake had done a lot of changes, syncing those. - * 1.5 Bugfixes, simplifications - */ - -/* - * unubi reads an image file containing blocks of UBI headers and data - * (such as produced from nand2bin) and rebuilds the volumes within. The - * default operation (when no flags are given) is to rebuild all valid - * volumes found in the image. unubi can also read straight from the - * onboard MTD device (ex. /dev/mtdblock/NAND). - */ - -/* TODO: consideration for dynamic vs. static volumes */ - -#include <errno.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdint.h> -#include <getopt.h> -#include <stdarg.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <limits.h> -#include <sys/ioctl.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <mtd/ubi-media.h> -#include <mtd_swab.h> - -#include "crc32.h" -#include "unubi_analyze.h" - -#define EXEC "unubi" -#define CONTACT "haver@vnet.ibm.com" -#define VERSION "1.5" - -static char doc[] = "\nVersion: " VERSION "\n"; -static int debug = 0; - -static const char *optionsstr = -"Extract volumes and/or analysis information from an UBI data file.\n" -"When no parameters are flagged or given, the default operation is\n" -"to rebuild all valid complete UBI volumes found within the image.\n" -"\n" -" OPERATIONS\n" -" -a, --analyze Analyze image and create gnuplot graphs\n" -" -i, --info-table Extract volume information tables\n" -" -r, --rebuild=<volume-id> Extract and rebuild volume\n" -"\n" -" OPTIONS\n" -" -b, --blocksize=<block-size> Specify size of eraseblocks in image in bytes\n" -" (default 128KiB)\n" -" -d, --dir=<output-dir> Specify output directory\n" -" -D, --debug Enable debug output\n" -" -s, --headersize=<header-size> Specify size reserved for metadata in eraseblock\n" - " in bytes (default 2048 Byte)\n" - /* the -s option might be insufficient when using different vid - offset than what we used when writing this tool ... Better would - probably be --vid-hdr-offset or alike */ -"\n" -" ADVANCED\n" -" -e, --eb-split Generate individual eraseblock images (all\n" -" eraseblocks)\n" -" -v, --vol-split Generate individual eraseblock images (valid\n" -" eraseblocks only)\n" -" -V, --vol-split! Raw split by eraseblock (valid eraseblocks only)\n" -"\n" -" -?, --help Give this help list\n" -" --usage Give a short usage message\n" -" --version Print program version\n" -"\n"; - -static const char *usage = -"Usage: unubi [-aievV?] [-r <volume-id>] [-b <block-size>] [-d <output-dir>]\n" -" [-s <header-size>] [--analyze] [--info-table]\n" -" [--rebuild=<volume-id>] [--blocksize=<block-size>]\n" -" [--dir=<output-dir>] [--headersize=<header-size>] [--eb-split]\n" -" [--vol-split] [--vol-split!] [--help] [--usage] [--version]\n" -" image-file\n"; - -#define ERR_MSG(fmt...) \ - fprintf(stderr, EXEC ": " fmt) - -#define SPLIT_DATA 1 -#define SPLIT_RAW 2 - -#define DIR_FMT "unubi_%s" -#define KIB 1024 -#define MIB (KIB * KIB) -#define MAXPATH KIB - -/* filenames */ -#define FN_INVAL "%s/eb%04u%s" /* invalid eraseblock */ -#define FN_NSURE "%s/eb%04u_%03u_%03u_%03x%s" /* unsure eraseblock */ -#define FN_VALID "%s/eb%04u_%03u_%03u_%03x%s" /* valid eraseblock */ -#define FN_VOLSP "%s/vol%03u_%03u_%03u_%04zu" /* split volume */ -#define FN_VOLWH "%s/volume%03u" /* whole volume */ -#define FN_VITBL "%s/vol_info_table%zu" /* vol info table */ - -static uint32_t crc32_table[256]; - -/* struct args: - * bsize int, blocksize of image blocks - * hsize int, eraseblock header size - * analyze flag, when non-zero produce analysis - * eb_split flag, when non-zero output eb#### - * note: SPLIT_DATA vs. SPLIT_RAW - * vol_split flag, when non-zero output vol###_#### - * note: SPLIT_DATA vs. SPLIT_RAW - * odir_path string, directory to place volumes in - * img_path string, file to read as ubi image - * vols int array of size UBI_MAX_VOLUMES, where a 1 can be - * written for each --rebuild flag in the index specified - * then the array can be counted and collapsed using - * count_set() and collapse() - */ -struct args { - int analyze; - int itable; - uint32_t *vols; - - size_t vid_hdr_offset; - size_t data_offset; - size_t bsize; /* FIXME replace by vid_hdr/data offs? */ - size_t hsize; - - char *odir_path; - int eb_split; - int vol_split; - char *img_path; - - char **options; -}; - -struct option long_options[] = { - { .name = "rebuild", .has_arg = 1, .flag = NULL, .val = 'r' }, - { .name = "dir", .has_arg = 1, .flag = NULL, .val = 'd' }, - { .name = "analyze", .has_arg = 0, .flag = NULL, .val = 'a' }, - { .name = "blocksize", .has_arg = 1, .flag = NULL, .val = 'b' }, - { .name = "eb-split", .has_arg = 0, .flag = NULL, .val = 'e' }, - { .name = "vol-split", .has_arg = 0, .flag = NULL, .val = 'v' }, - { .name = "vol-split!", .has_arg = 0, .flag = NULL, .val = 'e' }, - { .name = "help", .has_arg = 0, .flag = NULL, .val = '?' }, - { .name = "usage", .has_arg = 0, .flag = NULL, .val = 0 }, - { .name = "version", .has_arg = 0, .flag = NULL, .val = 'J' }, - { NULL, 0, NULL, 0} -}; - -/** - * parses out a numerical value from a string of numbers followed by: - * k, K, kib, KiB for kibibyte - * m, M, mib, MiB for mebibyte - **/ -static uint32_t -str_to_num(char *str) -{ - char *s; - ulong num; - - s = str; - num = strtoul(s, &s, 0); - - if (*s != '\0') { - if ((strcmp(s, "KiB") == 0) || (strcmp(s, "K") == 0) || - (strcmp(s, "kib") == 0) || (strcmp(s, "k") == 0)) - num *= KIB; - else if ((strcmp(s, "MiB") == 0) || (strcmp(s, "M") == 0) || - (strcmp(s, "mib") == 0) || (strcmp(s, "m") == 0)) - num *= MIB; - else - ERR_MSG("couldn't parse '%s', assuming %lu\n", - s, num); - } - return num; -} - -static int -parse_opt(int argc, char **argv, struct args *args) -{ - uint32_t i; - - while (1) { - int key; - - key = getopt_long(argc, argv, "ab:s:d:Deir:vV?J", - long_options, NULL); - if (key == -1) - break; - - switch (key) { - case 'a': /* --analyze */ - args->analyze = 1; - break; - case 'b': /* --block-size=<block-size> */ - args->bsize = str_to_num(optarg); - break; - case 's': /* --header-size=<header-size> */ - args->hsize = str_to_num(optarg); - break; - case 'd': /* --dir=<output-dir> */ - args->odir_path = optarg; - break; - case 'D': /* --debug */ - /* I wanted to use -v but that was already - used ... */ - debug = 1; - break; - case 'e': /* --eb-split */ - args->eb_split = SPLIT_RAW; - break; - case 'i': /* --info-table */ - args->itable = 1; - break; - case 'r': /* --rebuild=<volume-id> */ - i = str_to_num(optarg); - if (i < UBI_MAX_VOLUMES) - args->vols[str_to_num(optarg)] = 1; - else { - ERR_MSG("volume-id out of bounds\n"); - return -1; - } - break; - case 'v': /* --vol-split */ - if (args->vol_split != SPLIT_RAW) - args->vol_split = SPLIT_DATA; - break; - case 'V': /* --vol-split! */ - args->vol_split = SPLIT_RAW; - break; - case '?': /* help */ - fprintf(stderr, "Usage: unubi [OPTION...] " - "image-file\n%s%s\nReport bugs to %s\n", - doc, optionsstr, CONTACT); - exit(0); - break; - case 'J': - fprintf(stderr, "%s\n", VERSION); - exit(0); - break; - default: - fprintf(stderr, "%s", usage); - exit(-1); - } - } - - /* FIXME I suppose hsize should be replaced! */ - args->vid_hdr_offset = args->hsize - UBI_VID_HDR_SIZE; - args->data_offset = args->hsize; - - if (optind < argc) - args->img_path = argv[optind++]; - return 0; -} - - -/** - * counts the number of indicies which are flagged in full_array; - * full_array is an array of flags (1/0); - **/ -static size_t -count_set(uint32_t *full_array, size_t full_len) -{ - size_t count, i; - - if (full_array == NULL) - return 0; - - for (i = 0, count = 0; i < full_len; i++) - if (full_array[i] != 0) - count++; - - return count; -} - - -/** - * generates coll_array from full_array; - * full_array is an array of flags (1/0); - * coll_array is an array of the indicies in full_array which are flagged (1); - **/ -static size_t -collapse(uint32_t *full_array, size_t full_len, - uint32_t *coll_array, size_t coll_len) -{ - size_t i, j; - - if ((full_array == NULL) || (coll_array == NULL)) - return 0; - - for (i = 0, j = 0; (i < full_len) && (j < coll_len); i++) - if (full_array[i] != 0) { - coll_array[j] = i; - j++; - } - - return j; -} - -/** - * data_crc: save the FILE* position, calculate the crc over a span, - * reset the position - * returns non-zero when EOF encountered - **/ -static int -data_crc(FILE* fpin, size_t length, uint32_t *ret_crc) -{ - int rc; - size_t i; - char buf[length]; - uint32_t crc; - fpos_t start; - - rc = fgetpos(fpin, &start); - if (rc < 0) - return -1; - - for (i = 0; i < length; i++) { - int c = fgetc(fpin); - if (c == EOF) { - ERR_MSG("unexpected EOF\n"); - return -1; - } - buf[i] = (char)c; - } - - rc = fsetpos(fpin, &start); - if (rc < 0) - return -1; - - crc = clc_crc32(crc32_table, UBI_CRC32_INIT, buf, length); - *ret_crc = crc; - return 0; -} - - -/** - * reads data of size len from fpin and writes it to path - **/ -static int -extract_data(FILE* fpin, size_t len, const char *path) -{ - int rc; - size_t i; - FILE* fpout; - - rc = 0; - fpout = NULL; - - fpout = fopen(path, "wb"); - if (fpout == NULL) { - ERR_MSG("couldn't open file for writing: %s\n", path); - rc = -1; - goto err; - } - - for (i = 0; i < len; i++) { - int c = fgetc(fpin); - if (c == EOF) { - ERR_MSG("unexpected EOF while writing: %s\n", path); - rc = -2; - goto err; - } - c = fputc(c, fpout); - if (c == EOF) { - ERR_MSG("couldn't write: %s\n", path); - rc = -3; - goto err; - } - } - - err: - if (fpout != NULL) - fclose(fpout); - return rc; -} - - -/** - * extract volume information table from block. saves and reloads fpin - * position - * returns -1 when a fpos set or get fails, otherwise <= -2 on other - * failure and 0 on success - **/ -static int -extract_itable(FILE *fpin, struct eb_info *cur, size_t bsize, size_t num, - const char *path) -{ - char filename[MAXPATH + 1]; - int rc; - size_t i, max; - fpos_t temp; - FILE* fpout = NULL; - struct ubi_vtbl_record rec; - - if (fpin == NULL || cur == NULL || path == NULL) - return -2; - - /* remember position */ - rc = fgetpos(fpin, &temp); - if (rc < 0) - return -1; - - /* jump to top of eraseblock, skip to data section */ - fsetpos(fpin, &cur->eb_top); - if (rc < 0) - return -1; - fseek(fpin, be32_to_cpu(cur->ec.data_offset), SEEK_CUR); - - /* prepare output file */ - if (be32_to_cpu(cur->vid.vol_id) != UBI_LAYOUT_VOLUME_ID) - return -2; - memset(filename, 0, MAXPATH + 1); - snprintf(filename, MAXPATH, FN_VITBL, path, num); - fpout = fopen(filename, "w"); - if (fpout == NULL) - return -2; - - /* loop through entries */ - fprintf(fpout, - "index\trpebs\talign\ttype\tcrc\t\tname\n"); - max = bsize - be32_to_cpu(cur->ec.data_offset); - for (i = 0; i < (max / sizeof(rec)); i++) { - int blank = 1; - char *ptr, *base; - char name[UBI_VOL_NAME_MAX + 1]; - const char *type = "unknown\0"; - uint32_t crc; - - /* read record */ - rc = fread(&rec, 1, sizeof(rec), fpin); - if (rc == 0) - break; - if (rc != sizeof(rec)) { - ERR_MSG("reading volume information " - "table record failed\n"); - rc = -3; - goto exit; - } - - /* check crc */ - crc = clc_crc32(crc32_table, UBI_CRC32_INIT, &rec, - UBI_VTBL_RECORD_SIZE_CRC); - if (crc != be32_to_cpu(rec.crc)) - continue; - - /* check for empty */ - base = (char *)&rec; - ptr = base; - while (blank && - ((unsigned)(ptr - base) < UBI_VTBL_RECORD_SIZE_CRC)) { - if (*ptr != 0) - blank = 0; - ptr++; - } - - if (blank) - continue; - - /* prep type string */ - if (rec.vol_type == UBI_VID_DYNAMIC) - type = "dynamic\0"; - else if (rec.vol_type == UBI_VID_STATIC) - type = "static\0"; - - /* prep name string */ - rec.name[be16_to_cpu(rec.name_len)] = '\0'; - sprintf(name, "%s", rec.name); - - /* print record line to fpout */ - fprintf(fpout, "%zu\t%u\t%u\t%s\t0x%08x\t%s\n", - i, - be32_to_cpu(rec.reserved_pebs), - be32_to_cpu(rec.alignment), - type, - be32_to_cpu(rec.crc), - name); - } - - exit: - /* reset position */ - if (fsetpos(fpin, &temp) < 0) - rc = -1; - - if (fpout != NULL) - fclose(fpout); - - return rc; -} - - -/** - * using eb chain, tries to rebuild the data of volume at vol_id, or for all - * the known volumes, if vol_id is NULL; - **/ -static int -rebuild_volume(FILE * fpin, uint32_t *vol_id, struct eb_info **head, - const char *path, size_t block_size, size_t header_size) -{ - char filename[MAXPATH]; - int rc; - uint32_t vol, num, data_size; - FILE* fpout; - struct eb_info *cur; - - rc = 0; - - if ((fpin == NULL) || (head == NULL) || (*head == NULL)) - return 0; - - /* when vol_id is null, then do all */ - if (vol_id == NULL) { - cur = *head; - vol = be32_to_cpu(cur->vid.vol_id); - } else { - vol = *vol_id; - eb_chain_position(head, vol, NULL, &cur); - if (cur == NULL) { - if (debug) - ERR_MSG("no valid volume %d was found\n", vol); - return -1; - } - } - - num = 0; - snprintf(filename, MAXPATH, FN_VOLWH, path, vol); - fpout = fopen(filename, "wb"); - if (fpout == NULL) { - ERR_MSG("couldn't open file for writing: %s\n", filename); - return -1; - } - - while (cur != NULL) { - size_t i; - - if (be32_to_cpu(cur->vid.vol_id) != vol) { - /* close out file */ - fclose(fpout); - - /* only stay around if that was the only volume */ - if (vol_id != NULL) - goto out; - - /* begin with next */ - vol = be32_to_cpu(cur->vid.vol_id); - num = 0; - snprintf(filename, MAXPATH, FN_VOLWH, path, vol); - fpout = fopen(filename, "wb"); - if (fpout == NULL) { - ERR_MSG("couldn't open file for writing: %s\n", - filename); - return -1; - } - } - - while (num < be32_to_cpu(cur->vid.lnum)) { - /* FIXME haver: I hope an empty block is - written out so that the binary has no holes - ... */ - if (debug) - ERR_MSG("missing valid block %d for volume %d\n", - num, vol); - num++; - } - - rc = fsetpos(fpin, &(cur->eb_top)); - if (rc < 0) - goto out; - fseek(fpin, be32_to_cpu(cur->ec.data_offset), SEEK_CUR); - - if (cur->vid.vol_type == UBI_VID_DYNAMIC) - /* FIXME It might be that alignment has influence */ - data_size = block_size - header_size; - else - data_size = be32_to_cpu(cur->vid.data_size); - - for (i = 0; i < data_size; i++) { - int c = fgetc(fpin); - if (c == EOF) { - ERR_MSG("unexpected EOF while writing: %s\n", - filename); - rc = -2; - goto out; - } - c = fputc(c, fpout); - if (c == EOF) { - ERR_MSG("couldn't write: %s\n", filename); - rc = -3; - goto out; - } - } - - cur = cur->next; - num++; - } - - out: - if (vol_id == NULL) - fclose(fpout); - return rc; -} - - -/** - * traverses FILE* trying to load complete, valid and accurate header data - * into the eb chain; - **/ -static int -unubi_volumes(FILE* fpin, uint32_t *vols, size_t vc, struct args *a) -{ - char filename[MAXPATH + 1]; - char reason[MAXPATH + 1]; - int rc; - size_t i, count, itable_num; - /* relations: - * cur ~ head - * next ~ first */ - struct eb_info *head, *cur, *first, *next; - struct eb_info **next_ptr; - - rc = 0; - count = 0; - itable_num = 0; - head = NULL; - first = NULL; - next = NULL; - cur = malloc(sizeof(*cur)); - if (cur == NULL) { - ERR_MSG("out of memory\n"); - rc = -ENOMEM; - goto err; - } - memset(cur, 0, sizeof(*cur)); - - fgetpos(fpin, &(cur->eb_top)); - while (1) { - const char *raw_path; - uint32_t crc; - - cur->phys_addr = ftell(fpin); - cur->phys_block = cur->phys_addr / a->bsize; - cur->data_crc_ok = 0; - cur->ec_crc_ok = 0; - cur->vid_crc_ok = 0; - - memset(filename, 0, MAXPATH + 1); - memset(reason, 0, MAXPATH + 1); - - /* in case of an incomplete ec header */ - raw_path = FN_INVAL; - - /* read erasecounter header */ - rc = fread(&cur->ec, 1, sizeof(cur->ec), fpin); - if (rc == 0) - goto out; /* EOF */ - if (rc != sizeof(cur->ec)) { - ERR_MSG("reading ec-hdr failed\n"); - rc = -1; - goto err; - } - - /* check erasecounter header magic */ - if (be32_to_cpu(cur->ec.magic) != UBI_EC_HDR_MAGIC) { - snprintf(reason, MAXPATH, ".invalid.ec_magic"); - goto invalid; - } - - /* check erasecounter header crc */ - crc = clc_crc32(crc32_table, UBI_CRC32_INIT, &(cur->ec), - UBI_EC_HDR_SIZE_CRC); - if (be32_to_cpu(cur->ec.hdr_crc) != crc) { - snprintf(reason, MAXPATH, ".invalid.ec_hdr_crc"); - goto invalid; - } - - /* read volume id header */ - rc = fsetpos(fpin, &(cur->eb_top)); - if (rc != 0) - goto err; - fseek(fpin, be32_to_cpu(cur->ec.vid_hdr_offset), SEEK_CUR); - rc = fread(&cur->vid, 1, sizeof(cur->vid), fpin); - if (rc == 0) - goto out; /* EOF */ - if (rc != sizeof(cur->vid)) { - ERR_MSG("reading vid-hdr failed\n"); - rc = -1; - goto err; - } - - /* if the magic number is 0xFFFFFFFF, then it's very likely - * that the volume is empty */ - if (be32_to_cpu(cur->vid.magic) == 0xffffffff) { - snprintf(reason, MAXPATH, ".empty"); - goto invalid; - } - - /* vol_id should be in bounds */ - if ((be32_to_cpu(cur->vid.vol_id) >= UBI_MAX_VOLUMES) && - (be32_to_cpu(cur->vid.vol_id) < - UBI_INTERNAL_VOL_START)) { - snprintf(reason, MAXPATH, ".invalid"); - goto invalid; - } else - raw_path = FN_NSURE; - - /* check volume id header magic */ - if (be32_to_cpu(cur->vid.magic) != UBI_VID_HDR_MAGIC) { - snprintf(reason, MAXPATH, ".invalid.vid_magic"); - goto invalid; - } - cur->ec_crc_ok = 1; - - /* check volume id header crc */ - crc = clc_crc32(crc32_table, UBI_CRC32_INIT, &(cur->vid), - UBI_VID_HDR_SIZE_CRC); - if (be32_to_cpu(cur->vid.hdr_crc) != crc) { - snprintf(reason, MAXPATH, ".invalid.vid_hdr_crc"); - goto invalid; - } - cur->vid_crc_ok = 1; - - /* check data crc, but only for a static volume */ - if (cur->vid.vol_type == UBI_VID_STATIC) { - rc = data_crc(fpin, be32_to_cpu(cur->vid.data_size), - &crc); - if (rc < 0) - goto err; - if (be32_to_cpu(cur->vid.data_crc) != crc) { - snprintf(reason, MAXPATH, ".invalid.data_crc"); - goto invalid; - } - cur->data_crc_ok = 1; - } - - /* enlist this vol, it's valid */ - raw_path = FN_VALID; - cur->linear = count; - rc = eb_chain_insert(&head, cur); - if (rc < 0) { - if (rc == -ENOMEM) { - ERR_MSG("out of memory\n"); - goto err; - } - ERR_MSG("unknown and unexpected error, please contact " - CONTACT "\n"); - goto err; - } - - /* extract info-table */ - if (a->itable && - (be32_to_cpu(cur->vid.vol_id) == UBI_LAYOUT_VOLUME_ID)) { - extract_itable(fpin, cur, a->bsize, - itable_num, a->odir_path); - itable_num++; - } - - /* split volumes */ - if (a->vol_split) { - size_t size = 0; - - rc = fsetpos(fpin, &(cur->eb_top)); - if (rc != 0) - goto err; - - /* - * FIXME For dynamic UBI volumes we must write - * the maximum available data. The - * vid.data_size field is not used in this - * case. The dynamic volume user is - * responsible for the content. - */ - if (a->vol_split == SPLIT_DATA) { - /* Write only data section */ - if (cur->vid.vol_type == UBI_VID_DYNAMIC) { - /* FIXME Formular is not - always right ... */ - size = a->bsize - a->hsize; - } else - size = be32_to_cpu(cur->vid.data_size); - - fseek(fpin, - be32_to_cpu(cur->ec.data_offset), - SEEK_CUR); - } - else if (a->vol_split == SPLIT_RAW) - /* write entire eraseblock */ - size = a->bsize; - - snprintf(filename, MAXPATH, FN_VOLSP, - a->odir_path, - be32_to_cpu(cur->vid.vol_id), - be32_to_cpu(cur->vid.lnum), - be32_to_cpu(cur->vid.leb_ver), count); - rc = extract_data(fpin, size, filename); - if (rc < 0) - goto err; - } - - invalid: - /* split eraseblocks */ - if (a->eb_split) { - /* jump to top of block */ - rc = fsetpos(fpin, &(cur->eb_top)); - if (rc != 0) - goto err; - - if (strcmp(raw_path, FN_INVAL) == 0) - snprintf(filename, MAXPATH, raw_path, - a->odir_path, count, reason); - else - snprintf(filename, MAXPATH, raw_path, - a->odir_path, - count, - be32_to_cpu(cur->vid.vol_id), - be32_to_cpu(cur->vid.lnum), - be32_to_cpu(cur->vid.leb_ver), - reason); - - rc = extract_data(fpin, a->bsize, filename); - if (rc < 0) - goto err; - } - - /* append to simple linked list */ - if (first == NULL) - next_ptr = &first; - else - next_ptr = &next->next; - - *next_ptr = malloc(sizeof(**next_ptr)); - if (*next_ptr == NULL) { - ERR_MSG("out of memory\n"); - rc = -ENOMEM; - goto err; - } - memset(*next_ptr, 0, sizeof(**next_ptr)); - - next = *next_ptr; - memcpy(next, cur, sizeof(*next)); - next->next = NULL; - - count++; - rc = fsetpos(fpin, &(cur->eb_top)); - if (rc != 0) - goto err; - fseek(fpin, a->bsize, SEEK_CUR); - memset(cur, 0, sizeof(*cur)); - - fgetpos(fpin, &(cur->eb_top)); - } - - out: - for (i = 0; i < vc; i++) { - rc = rebuild_volume(fpin, &vols[i], &head, a->odir_path, - a->bsize, a->hsize); - if (rc < 0) - goto err; - } - - /* if there were no volumes specified, rebuild them all, - * UNLESS eb_ or vol_ split or analyze was specified */ - if ((vc == 0) && (!a->eb_split) && (!a->vol_split) && - (!a->analyze) && (!a->itable)) { - rc = rebuild_volume(fpin, NULL, &head, a->odir_path, a->bsize, - a->hsize); - if (rc < 0) - goto err; - } - - err: - free(cur); - - if (a->analyze) { - char fname[PATH_MAX + 1]; - FILE *fp; - - unubi_analyze(&head, first, a->odir_path); - - /* prepare output files */ - memset(fname, 0, PATH_MAX + 1); - snprintf(fname, PATH_MAX, "%s/%s", a->odir_path, FN_EH_STAT); - fp = fopen(fname, "w"); - if (fp != NULL) { - eb_chain_print(fp, head); - fclose(fp); - } - } - eb_chain_destroy(&head); - eb_chain_destroy(&first); - - return rc; -} - - -/** - * handles command line arguments, then calls unubi_volumes - **/ -int -main(int argc, char *argv[]) -{ - int rc, free_a_odir; - size_t vols_len; - uint32_t *vols; - FILE* fpin; - struct args a; - - rc = 0; - free_a_odir = 0; - vols_len = 0; - vols = NULL; - fpin = NULL; - init_crc32_table(crc32_table); - - /* setup struct args a */ - memset(&a, 0, sizeof(a)); - a.bsize = 128 * KIB; - a.hsize = 2 * KIB; - a.vols = malloc(sizeof(*a.vols) * UBI_MAX_VOLUMES); - if (a.vols == NULL) { - ERR_MSG("out of memory\n"); - rc = ENOMEM; - goto err; - } - memset(a.vols, 0, sizeof(*a.vols) * UBI_MAX_VOLUMES); - - /* parse args and check for validity */ - parse_opt(argc, argv, &a); - if (a.img_path == NULL) { - ERR_MSG("no image file specified\n"); - rc = EINVAL; - goto err; - } - else if (a.odir_path == NULL) { - char *ptr; - int len; - - ptr = strrchr(a.img_path, '/'); - if (ptr == NULL) - ptr = a.img_path; - else - ptr++; - - len = strlen(DIR_FMT) + strlen(ptr); - free_a_odir = 1; - a.odir_path = malloc(sizeof(*a.odir_path) * len); - if (a.odir_path == NULL) { - ERR_MSG("out of memory\n"); - rc = ENOMEM; - goto err; - } - snprintf(a.odir_path, len, DIR_FMT, ptr); - } - - fpin = fopen(a.img_path, "rb"); - if (fpin == NULL) { - ERR_MSG("couldn't open file for reading: " - "%s\n", a.img_path); - rc = EINVAL; - goto err; - } - - rc = mkdir(a.odir_path, 0777); - if ((rc < 0) && (errno != EEXIST)) { - ERR_MSG("couldn't create ouput directory: " - "%s\n", a.odir_path); - rc = -rc; - goto err; - } - - /* fill in vols array */ - vols_len = count_set(a.vols, UBI_MAX_VOLUMES); - if (vols_len > 0) { - vols = malloc(sizeof(*vols) * vols_len); - if (vols == NULL) { - ERR_MSG("out of memory\n"); - rc = ENOMEM; - goto err; - } - collapse(a.vols, UBI_MAX_VOLUMES, vols, vols_len); - } - - /* unubi volumes */ - rc = unubi_volumes(fpin, vols, vols_len, &a); - if (rc < 0) { - /* ERR_MSG("error encountered while working on image file: " - "%s\n", a.img_path); */ - rc = -rc; - goto err; - } - - err: - free(a.vols); - if (free_a_odir != 0) - free(a.odir_path); - if (fpin != NULL) - fclose(fpin); - if (vols_len > 0) - free(vols); - return rc; -} |