X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=misc%2Fdumpe2fs.c;h=a70cc4ec34666a7f295e3584529e6e22d6a98c1b;hb=c5fbf388550ad7511a7424078001316e2c6f401c;hp=3a2d5242a92d8356868573630b66306e429d4207;hpb=373b8337c7b6c6243810be250083fa4773891e92;p=tools%2Fe2fsprogs.git diff --git a/misc/dumpe2fs.c b/misc/dumpe2fs.c index 3a2d524..a70cc4e 100644 --- a/misc/dumpe2fs.c +++ b/misc/dumpe2fs.c @@ -32,10 +32,12 @@ extern int optind; #include #include -#include +#include "ext2fs/ext2_fs.h" #include "ext2fs/ext2fs.h" #include "e2p/e2p.h" +#include "jfs_user.h" +#include #include "../version.h" #include "nls-enable.h" @@ -44,14 +46,31 @@ extern int optind; const char * program_name = "dumpe2fs"; char * device_name = NULL; +int hex_format = 0; static void usage(void) { - fprintf (stderr, _("Usage: %s [-bV] [-ob superblock] " - "[-oB blocksize] device\n"), program_name); + fprintf (stderr, _("Usage: %s [-bfhixV] [-o superblock=] " + "[-o blocksize=] device\n"), program_name); exit (1); } +static void print_number(unsigned long num) +{ + if (hex_format) + printf("0x%04lx", num); + else + printf("%lu", num); +} + +static void print_range(unsigned long a, unsigned long b) +{ + if (hex_format) + printf("0x%04lx-0x%04lx", a, b); + else + printf("%lu-%lu", a, b); +} + static void print_free (unsigned long group, char * bitmap, unsigned long nbytes, unsigned long offset) { @@ -59,122 +78,396 @@ static void print_free (unsigned long group, char * bitmap, unsigned long i; unsigned long j; + offset += group * nbytes; for (i = 0; i < nbytes; i++) if (!in_use (bitmap, i)) { if (p) printf (", "); - if (i == nbytes - 1 || in_use (bitmap, i + 1)) - printf ("%lu", group * nbytes + i + offset); - else - { - for (j = i; j < nbytes && !in_use (bitmap, j); - j++) - ; - printf ("%lu-%lu", group * nbytes + i + offset, - group * nbytes + (j - 1) + offset); - i = j - 1; + print_number(i + offset); + for (j = i; j < nbytes && !in_use (bitmap, j); j++) + ; + if (--j != i) { + fputc('-', stdout); + print_number(j + offset); + i = j; } p = 1; } } +static void print_bg_opt(int bg_flags, int mask, + const char *str, int *first) +{ + if (bg_flags & mask) { + if (*first) { + fputs(" [", stdout); + *first = 0; + } else + fputs(", ", stdout); + fputs(str, stdout); + } +} +static void print_bg_opts(ext2_filsys fs, dgrp_t i) +{ + int first = 1, bg_flags = 0; + + if (fs->super->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM) + bg_flags = fs->group_desc[i].bg_flags; + + print_bg_opt(bg_flags, EXT2_BG_INODE_UNINIT, "INODE_UNINIT", + &first); + print_bg_opt(bg_flags, EXT2_BG_BLOCK_UNINIT, "BLOCK_UNINIT", + &first); + print_bg_opt(bg_flags, EXT2_BG_INODE_ZEROED, "ITABLE_ZEROED", + &first); + if (!first) + fputc(']', stdout); + fputc('\n', stdout); +} + static void list_desc (ext2_filsys fs) { unsigned long i; - blk_t group_blk, next_blk; - char * block_bitmap = fs->block_map->bitmap; - char * inode_bitmap = fs->inode_map->bitmap; + long diff; + blk_t first_block, last_block; + blk_t super_blk, old_desc_blk, new_desc_blk; + char *block_bitmap=NULL, *inode_bitmap=NULL; + int inode_blocks_per_group, old_desc_blocks, reserved_gdt; + int block_nbytes, inode_nbytes; + int has_super; + blk_t blk_itr = fs->super->s_first_data_block; + ext2_ino_t ino_itr = 1; + + block_nbytes = EXT2_BLOCKS_PER_GROUP(fs->super) / 8; + inode_nbytes = EXT2_INODES_PER_GROUP(fs->super) / 8; - printf ("\n"); - group_blk = fs->super->s_first_data_block; + if (fs->block_map) + block_bitmap = malloc(block_nbytes); + if (fs->inode_map) + inode_bitmap = malloc(inode_nbytes); + + inode_blocks_per_group = ((fs->super->s_inodes_per_group * + EXT2_INODE_SIZE(fs->super)) + + EXT2_BLOCK_SIZE(fs->super) - 1) / + EXT2_BLOCK_SIZE(fs->super); + reserved_gdt = fs->super->s_reserved_gdt_blocks; + fputc('\n', stdout); + first_block = fs->super->s_first_data_block; + if (fs->super->s_feature_incompat & EXT2_FEATURE_INCOMPAT_META_BG) + old_desc_blocks = fs->super->s_first_meta_bg; + else + old_desc_blocks = fs->desc_blocks; for (i = 0; i < fs->group_desc_count; i++) { - next_blk = group_blk + fs->super->s_blocks_per_group; - if (next_blk > fs->super->s_blocks_count) - next_blk = fs->super->s_blocks_count; - printf (_("Group %lu: (Blocks %u -- %u)\n"), i, - group_blk, next_blk -1 ); - printf (_(" Block bitmap at %u (+%d), " - "Inode bitmap at %u (+%d)\n " - "Inode table at %u (+%d)\n"), - fs->group_desc[i].bg_block_bitmap, - fs->group_desc[i].bg_block_bitmap - group_blk, - fs->group_desc[i].bg_inode_bitmap, - fs->group_desc[i].bg_inode_bitmap - group_blk, - fs->group_desc[i].bg_inode_table, - fs->group_desc[i].bg_inode_table - group_blk); - printf (_(" %d free blocks, %d free inodes, %d directories\n"), + first_block = ext2fs_group_first_block(fs, i); + last_block = ext2fs_group_last_block(fs, i); + + ext2fs_super_and_bgd_loc(fs, i, &super_blk, + &old_desc_blk, &new_desc_blk, 0); + + printf (_("Group %lu: (Blocks "), i); + print_range(first_block, last_block); + fputs(")", stdout); + print_bg_opts(fs, i); + if (fs->super->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM) + printf(_(" Checksum 0x%04x, unused inodes %d\n"), + fs->group_desc[i].bg_checksum, + fs->group_desc[i].bg_itable_unused); + has_super = ((i==0) || super_blk); + if (has_super) { + printf (_(" %s superblock at "), + i == 0 ? _("Primary") : _("Backup")); + print_number(super_blk); + } + if (old_desc_blk) { + printf(_(", Group descriptors at ")); + print_range(old_desc_blk, + old_desc_blk + old_desc_blocks - 1); + if (reserved_gdt) { + printf(_("\n Reserved GDT blocks at ")); + print_range(old_desc_blk + old_desc_blocks, + old_desc_blk + old_desc_blocks + + reserved_gdt - 1); + } + } else if (new_desc_blk) { + fputc(has_super ? ',' : ' ', stdout); + printf(_(" Group descriptor at ")); + print_number(new_desc_blk); + has_super++; + } + if (has_super) + fputc('\n', stdout); + fputs(_(" Block bitmap at "), stdout); + print_number(fs->group_desc[i].bg_block_bitmap); + diff = fs->group_desc[i].bg_block_bitmap - first_block; + if (diff >= 0) + printf(" (+%ld)", diff); + fputs(_(", Inode bitmap at "), stdout); + print_number(fs->group_desc[i].bg_inode_bitmap); + diff = fs->group_desc[i].bg_inode_bitmap - first_block; + if (diff >= 0) + printf(" (+%ld)", diff); + fputs(_("\n Inode table at "), stdout); + print_range(fs->group_desc[i].bg_inode_table, + fs->group_desc[i].bg_inode_table + + inode_blocks_per_group - 1); + diff = fs->group_desc[i].bg_inode_table - first_block; + if (diff > 0) + printf(" (+%ld)", diff); + printf (_("\n %u free blocks, %u free inodes, " + "%u directories%s"), fs->group_desc[i].bg_free_blocks_count, fs->group_desc[i].bg_free_inodes_count, - fs->group_desc[i].bg_used_dirs_count); - printf (_(" Free blocks: ")); - print_free (i, block_bitmap, fs->super->s_blocks_per_group, - fs->super->s_first_data_block); - block_bitmap += fs->super->s_blocks_per_group / 8; - printf ("\n"); - printf (_(" Free inodes: ")); - print_free (i, inode_bitmap, fs->super->s_inodes_per_group, 1); - inode_bitmap += fs->super->s_inodes_per_group / 8; - printf ("\n"); - group_blk = next_blk; + fs->group_desc[i].bg_used_dirs_count, + fs->group_desc[i].bg_itable_unused ? "" : "\n"); + if (fs->group_desc[i].bg_itable_unused) + printf (_(", %u unused inodes\n"), + fs->group_desc[i].bg_itable_unused); + if (block_bitmap) { + fputs(_(" Free blocks: "), stdout); + ext2fs_get_block_bitmap_range(fs->block_map, + blk_itr, block_nbytes << 3, block_bitmap); + print_free (i, block_bitmap, + fs->super->s_blocks_per_group, + fs->super->s_first_data_block); + fputc('\n', stdout); + blk_itr += fs->super->s_blocks_per_group; + } + if (inode_bitmap) { + fputs(_(" Free inodes: "), stdout); + ext2fs_get_inode_bitmap_range(fs->inode_map, + ino_itr, inode_nbytes << 3, inode_bitmap); + print_free (i, inode_bitmap, + fs->super->s_inodes_per_group, 1); + fputc('\n', stdout); + ino_itr += fs->super->s_inodes_per_group; + } } + if (block_bitmap) + free(block_bitmap); + if (inode_bitmap) + free(inode_bitmap); } -static void list_bad_blocks(ext2_filsys fs) +static void list_bad_blocks(ext2_filsys fs, int dump) { badblocks_list bb_list = 0; badblocks_iterate bb_iter; blk_t blk; errcode_t retval; + const char *header, *fmt; retval = ext2fs_read_bb_inode(fs, &bb_list); if (retval) { - com_err("ext2fs_read_bb_inode", retval, ""); - exit(1); + com_err("ext2fs_read_bb_inode", retval, 0); + return; } - retval = badblocks_list_iterate_begin(bb_list, &bb_iter); + retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter); if (retval) { - com_err("badblocks_list_iterate_begin", retval, + com_err("ext2fs_badblocks_list_iterate_begin", retval, _("while printing bad block list")); - exit(1); + return; } - if (badblocks_list_iterate(bb_iter, &blk)) - printf(_("Bad blocks: %d"), blk); - while (badblocks_list_iterate(bb_iter, &blk)) - printf(", %d", blk); - badblocks_list_iterate_end(bb_iter); - printf("\n"); + if (dump) { + header = fmt = "%u\n"; + } else { + header = _("Bad blocks: %u"); + fmt = ", %u"; + } + while (ext2fs_badblocks_list_iterate(bb_iter, &blk)) { + printf(header ? header : fmt, blk); + header = 0; + } + ext2fs_badblocks_list_iterate_end(bb_iter); + if (!dump) + fputc('\n', stdout); + ext2fs_badblocks_list_free(bb_list); } -static void dump_bad_blocks(ext2_filsys fs) +static void print_inline_journal_information(ext2_filsys fs) { - badblocks_list bb_list = 0; - badblocks_iterate bb_iter; - blk_t blk; + journal_superblock_t *jsb; + struct ext2_inode inode; + ext2_file_t journal_file; errcode_t retval; + ino_t ino = fs->super->s_journal_inum; + char buf[1024]; + __u32 *mask_ptr, mask, m; + int i, j, size, printed = 0; - retval = ext2fs_read_bb_inode(fs, &bb_list); + retval = ext2fs_read_inode(fs, ino, &inode); if (retval) { - com_err("ext2fs_read_bb_inode", retval, ""); + com_err(program_name, retval, + _("while reading journal inode")); exit(1); } - retval = badblocks_list_iterate_begin(bb_list, &bb_iter); + retval = ext2fs_file_open2(fs, ino, &inode, 0, &journal_file); if (retval) { - com_err("badblocks_list_iterate_begin", retval, - _("while printing bad block list")); + com_err(program_name, retval, + _("while opening journal inode")); + exit(1); + } + retval = ext2fs_file_read(journal_file, buf, sizeof(buf), 0); + if (retval) { + com_err(program_name, retval, + _("while reading journal super block")); + exit(1); + } + ext2fs_file_close(journal_file); + jsb = (journal_superblock_t *) buf; + if (be32_to_cpu(jsb->s_header.h_magic) != JFS_MAGIC_NUMBER) { + fprintf(stderr, + "Journal superblock magic number invalid!\n"); exit(1); } - while (badblocks_list_iterate(bb_iter, &blk)) - printf("%d\n", blk); - badblocks_list_iterate_end(bb_iter); + printf(_("Journal features: ")); + for (i=0, mask_ptr=&jsb->s_feature_compat; i <3; i++,mask_ptr++) { + mask = be32_to_cpu(*mask_ptr); + for (j=0,m=1; j < 32; j++, m<<=1) { + if (mask & m) { + printf(" %s", e2p_jrnl_feature2string(i, m)); + printed++; + } + } + } + if (printed == 0) + printf(" (none)"); + printf("\n"); + fputs(_("Journal size: "), stdout); + if ((fs->super->s_feature_ro_compat & + EXT4_FEATURE_RO_COMPAT_HUGE_FILE) && + (inode.i_flags & EXT4_HUGE_FILE_FL)) + size = inode.i_blocks / (fs->blocksize / 1024); + else + size = inode.i_blocks >> 1; + if (size < 8192) + printf("%uk\n", size); + else + printf("%uM\n", size >> 10); + printf(_("Journal length: %u\n" + "Journal sequence: 0x%08x\n" + "Journal start: %u\n"), + (unsigned int)ntohl(jsb->s_maxlen), + (unsigned int)ntohl(jsb->s_sequence), + (unsigned int)ntohl(jsb->s_start)); } -static int i386_byteorder(void) +static void print_journal_information(ext2_filsys fs) { - int one = 1; - char *cp = (char *) &one; + errcode_t retval; + char buf[1024]; + char str[80]; + unsigned int i; + journal_superblock_t *jsb; + + /* Get the journal superblock */ + if ((retval = io_channel_read_blk(fs->io, fs->super->s_first_data_block+1, -1024, buf))) { + com_err(program_name, retval, + _("while reading journal superblock")); + exit(1); + } + jsb = (journal_superblock_t *) buf; + if ((jsb->s_header.h_magic != (unsigned) ntohl(JFS_MAGIC_NUMBER)) || + (jsb->s_header.h_blocktype != + (unsigned) ntohl(JFS_SUPERBLOCK_V2))) { + com_err(program_name, 0, + _("Couldn't find journal superblock magic numbers")); + exit(1); + } - return (*cp == 1); + printf(_("\nJournal block size: %u\n" + "Journal length: %u\n" + "Journal first block: %u\n" + "Journal sequence: 0x%08x\n" + "Journal start: %u\n" + "Journal number of users: %u\n"), + (unsigned int)ntohl(jsb->s_blocksize), (unsigned int)ntohl(jsb->s_maxlen), + (unsigned int)ntohl(jsb->s_first), (unsigned int)ntohl(jsb->s_sequence), + (unsigned int)ntohl(jsb->s_start), (unsigned int)ntohl(jsb->s_nr_users)); + + for (i=0; i < ntohl(jsb->s_nr_users); i++) { + uuid_unparse(&jsb->s_users[i*16], str); + printf(i ? " %s\n" + : _("Journal users: %s\n"), + str); + } +} + +static void parse_extended_opts(const char *opts, blk_t *superblock, + int *blocksize) +{ + char *buf, *token, *next, *p, *arg, *badopt = 0; + int len; + int do_usage = 0; + + len = strlen(opts); + buf = malloc(len+1); + if (!buf) { + fprintf(stderr, + _("Couldn't allocate memory to parse options!\n")); + exit(1); + } + strcpy(buf, opts); + for (token = buf; token && *token; token = next) { + p = strchr(token, ','); + next = 0; + if (p) { + *p = 0; + next = p+1; + } + arg = strchr(token, '='); + if (arg) { + *arg = 0; + arg++; + } + if (strcmp(token, "superblock") == 0 || + strcmp(token, "sb") == 0) { + if (!arg) { + do_usage++; + badopt = token; + continue; + } + *superblock = strtoul(arg, &p, 0); + if (*p) { + fprintf(stderr, + _("Invalid superblock parameter: %s\n"), + arg); + do_usage++; + continue; + } + } else if (strcmp(token, "blocksize") == 0 || + strcmp(token, "bs") == 0) { + if (!arg) { + do_usage++; + badopt = token; + continue; + } + *blocksize = strtoul(arg, &p, 0); + if (*p) { + fprintf(stderr, + _("Invalid blocksize parameter: %s\n"), + arg); + do_usage++; + continue; + } + } else { + do_usage++; + badopt = token; + } + } + if (do_usage) { + fprintf(stderr, _("\nBad extended option(s) specified: %s\n\n" + "Extended options are separated by commas, " + "and may take an argument which\n" + "\tis set off by an equals ('=') sign.\n\n" + "Valid extended options are:\n" + "\tsuperblock=\n" + "\tblocksize=\n"), + badopt ? badopt : ""); + free(buf); + exit(1); + } + free(buf); } int main (int argc, char ** argv) @@ -182,26 +475,27 @@ int main (int argc, char ** argv) errcode_t retval; ext2_filsys fs; int print_badblocks = 0; - int use_superblock = 0; + blk_t use_superblock = 0; int use_blocksize = 0; + int image_dump = 0; int force = 0; + int flags; int header_only = 0; - int big_endian; int c; #ifdef ENABLE_NLS setlocale(LC_MESSAGES, ""); + setlocale(LC_CTYPE, ""); bindtextdomain(NLS_CAT_NAME, LOCALEDIR); textdomain(NLS_CAT_NAME); #endif - initialize_ext2_error_table(); - fprintf (stderr, _("dumpe2fs %s, %s for EXT2 FS %s, %s\n"), - E2FSPROGS_VERSION, E2FSPROGS_DATE, - EXT2FS_VERSION, EXT2FS_DATE); + add_error_table(&et_ext2_error_table); + fprintf (stderr, "dumpe2fs %s (%s)\n", E2FSPROGS_VERSION, + E2FSPROGS_DATE); if (argc && *argv) program_name = *argv; - - while ((c = getopt (argc, argv, "bfhVo:")) != EOF) { + + while ((c = getopt (argc, argv, "bfhixVo:")) != EOF) { switch (c) { case 'b': print_badblocks++; @@ -212,19 +506,21 @@ int main (int argc, char ** argv) case 'h': header_only++; break; + case 'i': + image_dump++; + break; case 'o': - if (optarg[0] == 'b') - use_superblock = atoi(optarg+1); - else if (optarg[0] == 'B') - use_blocksize = atoi(optarg+1); - else - usage(); + parse_extended_opts(optarg, &use_superblock, + &use_blocksize); break; case 'V': /* Print version number and exit */ fprintf(stderr, _("\tUsing %s\n"), error_message(EXT2_ET_BASE)); exit(0); + case 'x': + hex_format++; + break; default: usage(); } @@ -232,11 +528,26 @@ int main (int argc, char ** argv) if (optind > argc - 1) usage(); device_name = argv[optind++]; - if (use_superblock && !use_blocksize) - use_blocksize = 1024; - retval = ext2fs_open (device_name, force ? EXT2_FLAG_FORCE : 0, - use_superblock, use_blocksize, - unix_io_manager, &fs); + flags = EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SOFTSUPP_FEATURES; + if (force) + flags |= EXT2_FLAG_FORCE; + if (image_dump) + flags |= EXT2_FLAG_IMAGE_FILE; + + if (use_superblock && !use_blocksize) { + for (use_blocksize = EXT2_MIN_BLOCK_SIZE; + use_blocksize <= EXT2_MAX_BLOCK_SIZE; + use_blocksize *= 2) { + retval = ext2fs_open (device_name, flags, + use_superblock, + use_blocksize, unix_io_manager, + &fs); + if (!retval) + break; + } + } else + retval = ext2fs_open (device_name, flags, use_superblock, + use_blocksize, unix_io_manager, &fs); if (retval) { com_err (program_name, retval, _("while trying to open %s"), device_name); @@ -244,29 +555,33 @@ int main (int argc, char ** argv) exit (1); } if (print_badblocks) { - dump_bad_blocks(fs); + list_bad_blocks(fs, 1); } else { - big_endian = ((fs->flags & EXT2_FLAG_SWAP_BYTES) != 0); - if (!i386_byteorder()) - big_endian = !big_endian; - if (big_endian) - printf(_("Note: This is a byte-swapped filesystem\n")); list_super (fs->super); - list_bad_blocks (fs); + if (fs->super->s_feature_incompat & + EXT3_FEATURE_INCOMPAT_JOURNAL_DEV) { + print_journal_information(fs); + ext2fs_close(fs); + exit(0); + } + if ((fs->super->s_feature_compat & + EXT3_FEATURE_COMPAT_HAS_JOURNAL) && + (fs->super->s_journal_inum != 0)) + print_inline_journal_information(fs); + list_bad_blocks(fs, 0); if (header_only) { ext2fs_close (fs); exit (0); } retval = ext2fs_read_bitmaps (fs); + list_desc (fs); if (retval) { - com_err (program_name, retval, - _("while trying to read the bitmaps"), - device_name); - ext2fs_close (fs); - exit (1); + printf(_("\n%s: %s: error reading bitmaps: %s\n"), + program_name, device_name, + error_message(retval)); } - list_desc (fs); } ext2fs_close (fs); + remove_error_table(&et_ext2_error_table); exit (0); }