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-rw-r--r--misc/dumpe2fs.c780
1 files changed, 780 insertions, 0 deletions
diff --git a/misc/dumpe2fs.c b/misc/dumpe2fs.c
new file mode 100644
index 0000000..7c080ed
--- /dev/null
+++ b/misc/dumpe2fs.c
@@ -0,0 +1,780 @@
+/*
+ * dumpe2fs.c - List the control structures of a second
+ * extended filesystem
+ *
+ * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr>
+ * Laboratoire MASI, Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ * Copyright 1995, 1996, 1997 by Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+/*
+ * History:
+ * 94/01/09 - Creation
+ * 94/02/27 - Ported to use the ext2fs library
+ */
+
+#include "config.h"
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern char *optarg;
+extern int optind;
+#endif
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "ext2fs/ext2_fs.h"
+
+#include "ext2fs/ext2fs.h"
+#include "e2p/e2p.h"
+#include "ext2fs/kernel-jbd.h"
+#include <uuid/uuid.h>
+
+#include "support/nls-enable.h"
+#include "support/plausible.h"
+#include "../version.h"
+
+#define in_use(m, x) (ext2fs_test_bit ((x), (m)))
+
+static const char * program_name = "dumpe2fs";
+static char * device_name = NULL;
+static int hex_format = 0;
+static int blocks64 = 0;
+
+static void usage(void)
+{
+ fprintf(stderr, _("Usage: %s [-bfghimxV] [-o superblock=<num>] "
+ "[-o blocksize=<num>] device\n"), program_name);
+ exit(1);
+}
+
+static void print_number(unsigned long long num)
+{
+ if (hex_format) {
+ if (blocks64)
+ printf("0x%08llx", num);
+ else
+ printf("0x%04llx", num);
+ } else
+ printf("%llu", num);
+}
+
+static void print_range(unsigned long long a, unsigned long long b)
+{
+ if (hex_format) {
+ if (blocks64)
+ printf("0x%08llx-0x%08llx", a, b);
+ else
+ printf("0x%04llx-0x%04llx", a, b);
+ } else
+ printf("%llu-%llu", a, b);
+}
+
+static void print_free(unsigned long group, char * bitmap,
+ unsigned long num, unsigned long offset, int ratio)
+{
+ int p = 0;
+ unsigned long i;
+ unsigned long j;
+
+ offset /= ratio;
+ offset += group * num;
+ for (i = 0; i < num; i++)
+ if (!in_use (bitmap, i))
+ {
+ if (p)
+ printf (", ");
+ print_number((i + offset) * ratio);
+ for (j = i; j < num && !in_use (bitmap, j); j++)
+ ;
+ if (--j != i) {
+ fputc('-', stdout);
+ print_number((j + offset) * ratio);
+ 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 (ext2fs_has_group_desc_csum(fs))
+ bg_flags = ext2fs_bg_flags(fs, i);
+
+ 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 print_bg_rel_offset(ext2_filsys fs, blk64_t block, int itable,
+ blk64_t first_block, blk64_t last_block)
+{
+ if ((block >= first_block) && (block <= last_block)) {
+ if (itable && block == first_block)
+ return;
+ printf(" (+%u)", (unsigned)(block - first_block));
+ } else if (ext2fs_has_feature_flex_bg(fs->super)) {
+ dgrp_t flex_grp = ext2fs_group_of_blk2(fs, block);
+ printf(" (bg #%u + %u)", flex_grp,
+ (unsigned)(block-ext2fs_group_first_block2(fs,flex_grp)));
+ }
+}
+
+static void list_desc(ext2_filsys fs, int grp_only)
+{
+ unsigned long i;
+ blk64_t first_block, last_block;
+ blk64_t super_blk, old_desc_blk, new_desc_blk;
+ char *block_bitmap=NULL, *inode_bitmap=NULL;
+ const char *units = _("blocks");
+ int inode_blocks_per_group, old_desc_blocks, reserved_gdt;
+ int block_nbytes, inode_nbytes;
+ int has_super;
+ blk64_t blk_itr = EXT2FS_B2C(fs, fs->super->s_first_data_block);
+ ext2_ino_t ino_itr = 1;
+ errcode_t retval;
+
+ if (ext2fs_has_feature_bigalloc(fs->super))
+ units = _("clusters");
+
+ block_nbytes = EXT2_CLUSTERS_PER_GROUP(fs->super) / 8;
+ inode_nbytes = EXT2_INODES_PER_GROUP(fs->super) / 8;
+
+ 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 (ext2fs_has_feature_meta_bg(fs->super))
+ old_desc_blocks = fs->super->s_first_meta_bg;
+ else
+ old_desc_blocks = fs->desc_blocks;
+ if (grp_only)
+ printf("group:block:super:gdt:bbitmap:ibitmap:itable\n");
+ for (i = 0; i < fs->group_desc_count; i++) {
+ first_block = ext2fs_group_first_block2(fs, i);
+ last_block = ext2fs_group_last_block2(fs, i);
+
+ ext2fs_super_and_bgd_loc2(fs, i, &super_blk,
+ &old_desc_blk, &new_desc_blk, 0);
+
+ if (grp_only) {
+ printf("%lu:%llu:", i, (unsigned long long) first_block);
+ if (i == 0 || super_blk)
+ printf("%llu:", (unsigned long long) super_blk);
+ else
+ printf("-1:");
+ if (old_desc_blk) {
+ print_range(old_desc_blk,
+ old_desc_blk + old_desc_blocks - 1);
+ printf(":");
+ } else if (new_desc_blk)
+ printf("%llu:", (unsigned long long) new_desc_blk);
+ else
+ printf("-1:");
+ printf("%llu:%llu:%llu\n",
+ (unsigned long long) ext2fs_block_bitmap_loc(fs, i),
+ (unsigned long long) ext2fs_inode_bitmap_loc(fs, i),
+ (unsigned long long) ext2fs_inode_table_loc(fs, i));
+ continue;
+ }
+
+ printf(_("Group %lu: (Blocks "), i);
+ print_range(first_block, last_block);
+ fputs(")", stdout);
+ if (ext2fs_has_group_desc_csum(fs)) {
+ unsigned csum = ext2fs_bg_checksum(fs, i);
+ unsigned exp_csum = ext2fs_group_desc_csum(fs, i);
+
+ printf(_(" csum 0x%04x"), csum);
+ if (csum != exp_csum)
+ printf(_(" (EXPECTED 0x%04x)"), exp_csum);
+ }
+ print_bg_opts(fs, i);
+ 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("%s", _(", Group descriptors at "));
+ print_range(old_desc_blk,
+ old_desc_blk + old_desc_blocks - 1);
+ if (reserved_gdt) {
+ printf("%s", _("\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("%s", _(" Group descriptor at "));
+ print_number(new_desc_blk);
+ has_super++;
+ }
+ if (has_super)
+ fputc('\n', stdout);
+ fputs(_(" Block bitmap at "), stdout);
+ print_number(ext2fs_block_bitmap_loc(fs, i));
+ print_bg_rel_offset(fs, ext2fs_block_bitmap_loc(fs, i), 0,
+ first_block, last_block);
+ if (ext2fs_has_feature_metadata_csum(fs->super))
+ printf(_(", csum 0x%08x"),
+ ext2fs_block_bitmap_checksum(fs, i));
+ if (getenv("DUMPE2FS_IGNORE_80COL"))
+ fputs(_(","), stdout);
+ else
+ fputs(_("\n "), stdout);
+ fputs(_(" Inode bitmap at "), stdout);
+ print_number(ext2fs_inode_bitmap_loc(fs, i));
+ print_bg_rel_offset(fs, ext2fs_inode_bitmap_loc(fs, i), 0,
+ first_block, last_block);
+ if (ext2fs_has_feature_metadata_csum(fs->super))
+ printf(_(", csum 0x%08x"),
+ ext2fs_inode_bitmap_checksum(fs, i));
+ fputs(_("\n Inode table at "), stdout);
+ print_range(ext2fs_inode_table_loc(fs, i),
+ ext2fs_inode_table_loc(fs, i) +
+ inode_blocks_per_group - 1);
+ print_bg_rel_offset(fs, ext2fs_inode_table_loc(fs, i), 1,
+ first_block, last_block);
+ printf (_("\n %u free %s, %u free inodes, "
+ "%u directories%s"),
+ ext2fs_bg_free_blocks_count(fs, i), units,
+ ext2fs_bg_free_inodes_count(fs, i),
+ ext2fs_bg_used_dirs_count(fs, i),
+ ext2fs_bg_itable_unused(fs, i) ? "" : "\n");
+ if (ext2fs_bg_itable_unused(fs, i))
+ printf (_(", %u unused inodes\n"),
+ ext2fs_bg_itable_unused(fs, i));
+ if (block_bitmap) {
+ fputs(_(" Free blocks: "), stdout);
+ retval = ext2fs_get_block_bitmap_range2(fs->block_map,
+ blk_itr, block_nbytes << 3, block_bitmap);
+ if (retval)
+ com_err("list_desc", retval,
+ "while reading block bitmap");
+ else
+ print_free(i, block_bitmap,
+ fs->super->s_clusters_per_group,
+ fs->super->s_first_data_block,
+ EXT2FS_CLUSTER_RATIO(fs));
+ fputc('\n', stdout);
+ blk_itr += fs->super->s_clusters_per_group;
+ }
+ if (inode_bitmap) {
+ fputs(_(" Free inodes: "), stdout);
+ retval = ext2fs_get_inode_bitmap_range2(fs->inode_map,
+ ino_itr, inode_nbytes << 3, inode_bitmap);
+ if (retval)
+ com_err("list_desc", retval,
+ "while reading inode bitmap");
+ else
+ print_free(i, inode_bitmap,
+ fs->super->s_inodes_per_group,
+ 1, 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, 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, 0);
+ return;
+ }
+ retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
+ if (retval) {
+ com_err("ext2fs_badblocks_list_iterate_begin", retval,
+ "%s", _("while printing bad block list"));
+ ext2fs_badblocks_list_free(bb_list);
+ return;
+ }
+ 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 print_inline_journal_information(ext2_filsys fs)
+{
+ journal_superblock_t *jsb;
+ struct ext2_inode inode;
+ ext2_file_t journal_file;
+ errcode_t retval;
+ ext2_ino_t ino = fs->super->s_journal_inum;
+ char buf[1024];
+ int flags;
+
+ if (fs->flags & EXT2_FLAG_IMAGE_FILE)
+ return;
+ retval = ext2fs_read_inode(fs, ino, &inode);
+ if (retval) {
+ com_err(program_name, retval, "%s",
+ _("while reading journal inode"));
+ exit(1);
+ }
+ retval = ext2fs_file_open2(fs, ino, &inode, 0, &journal_file);
+ if (retval) {
+ com_err(program_name, retval, "%s",
+ _("while opening journal inode"));
+ exit(1);
+ }
+ retval = ext2fs_file_read(journal_file, buf, sizeof(buf), 0);
+ if (retval) {
+ com_err(program_name, retval, "%s",
+ _("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) != JBD2_MAGIC_NUMBER) {
+ fprintf(stderr, "%s",
+ _("Journal superblock magic number invalid!\n"));
+ exit(1);
+ }
+ flags = ext2fs_has_feature_fast_commit(fs->super) ?
+ E2P_LIST_JOURNAL_FLAG_FC : 0;
+ e2p_list_journal_super(stdout, buf, fs->blocksize, flags);
+}
+
+static void print_journal_information(ext2_filsys fs)
+{
+ errcode_t retval;
+ char buf[1024];
+ journal_superblock_t *jsb;
+ int flags;
+
+ /* Get the journal superblock */
+ if ((retval = io_channel_read_blk64(fs->io,
+ fs->super->s_first_data_block + 1,
+ -1024, buf))) {
+ com_err(program_name, retval, "%s",
+ _("while reading journal superblock"));
+ exit(1);
+ }
+ jsb = (journal_superblock_t *) buf;
+ if ((jsb->s_header.h_magic != (unsigned) ntohl(JBD2_MAGIC_NUMBER)) ||
+ (jsb->s_header.h_blocktype !=
+ (unsigned) ntohl(JBD2_SUPERBLOCK_V2))) {
+ com_err(program_name, 0, "%s",
+ _("Couldn't find journal superblock magic numbers"));
+ exit(1);
+ }
+ flags = ext2fs_has_feature_fast_commit(fs->super) ?
+ E2P_LIST_JOURNAL_FLAG_FC : 0;
+ e2p_list_journal_super(stdout, buf, fs->blocksize, flags);
+}
+
+static int check_mmp(ext2_filsys fs)
+{
+ int retval;
+
+ /* This won't actually start MMP on the filesystem, since fs is opened
+ * readonly, but it will do the proper activity checking for us. */
+ retval = ext2fs_mmp_start(fs);
+ if (retval) {
+ com_err(program_name, retval, _("while trying to open %s"),
+ fs->device_name);
+ if (retval == EXT2_ET_MMP_FAILED ||
+ retval == EXT2_ET_MMP_FSCK_ON ||
+ retval == EXT2_ET_MMP_CSUM_INVALID ||
+ retval == EXT2_ET_MMP_UNKNOWN_SEQ) {
+ if (fs->mmp_buf) {
+ struct mmp_struct *mmp = fs->mmp_buf;
+ time_t mmp_time = mmp->mmp_time;
+
+ fprintf(stderr,
+ "%s: MMP update by '%.*s%.*s' at %s",
+ program_name,
+ EXT2_LEN_STR(mmp->mmp_nodename),
+ EXT2_LEN_STR(mmp->mmp_bdevname),
+ ctime(&mmp_time));
+ }
+ retval = 1;
+ } else {
+ retval = 2;
+ }
+ } else {
+ printf("%s: it is safe to mount '%s', MMP is clean\n",
+ program_name, fs->device_name);
+ }
+
+ return retval;
+}
+
+static void print_mmp_block(ext2_filsys fs)
+{
+ struct mmp_struct *mmp;
+ time_t mmp_time;
+ errcode_t retval;
+
+ if (fs->mmp_buf == NULL) {
+ retval = ext2fs_get_mem(fs->blocksize, &fs->mmp_buf);
+ if (retval) {
+ com_err(program_name, retval,
+ _("failed to alloc MMP buffer\n"));
+ return;
+ }
+ }
+
+ retval = ext2fs_mmp_read(fs, fs->super->s_mmp_block, fs->mmp_buf);
+ /* this is only dumping, not checking status, so OK to skip this */
+ if (retval == EXT2_ET_OP_NOT_SUPPORTED)
+ return;
+ if (retval) {
+ com_err(program_name, retval,
+ _("reading MMP block %llu from '%s'\n"),
+ (unsigned long long) fs->super->s_mmp_block,
+ fs->device_name);
+ return;
+ }
+
+ mmp = fs->mmp_buf;
+ mmp_time = mmp->mmp_time;
+ printf("MMP_block:\n");
+ printf(" mmp_magic: 0x%x\n", mmp->mmp_magic);
+ printf(" mmp_check_interval: %d\n", mmp->mmp_check_interval);
+ printf(" mmp_sequence: %#08x\n", mmp->mmp_seq);
+ printf(" mmp_update_date: %s", ctime(&mmp_time));
+ printf(" mmp_update_time: %llu\n",
+ (unsigned long long) mmp->mmp_time);
+ printf(" mmp_node_name: %.*s\n",
+ EXT2_LEN_STR(mmp->mmp_nodename));
+ printf(" mmp_device_name: %.*s\n",
+ EXT2_LEN_STR(mmp->mmp_bdevname));
+}
+
+static void parse_extended_opts(const char *opts, blk64_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, "%s",
+ _("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=<superblock number>\n"
+ "\tblocksize=<blocksize>\n"),
+ badopt ? badopt : "");
+ free(buf);
+ exit(1);
+ }
+ free(buf);
+}
+
+int main (int argc, char ** argv)
+{
+ errcode_t retval;
+ errcode_t retval_csum = 0;
+ const char *error_csum = NULL;
+ ext2_filsys fs;
+ int print_badblocks = 0;
+ blk64_t use_superblock = 0;
+ int use_blocksize = 0;
+ int image_dump = 0;
+ int mmp_check = 0;
+ int mmp_info = 0;
+ int force = 0;
+ int flags;
+ int header_only = 0;
+ int c;
+ int grp_only = 0;
+
+#ifdef ENABLE_NLS
+ setlocale(LC_MESSAGES, "");
+ setlocale(LC_CTYPE, "");
+ bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
+ textdomain(NLS_CAT_NAME);
+ set_com_err_gettext(gettext);
+#endif
+ add_error_table(&et_ext2_error_table);
+ if (argc && *argv) {
+ if (strrchr(*argv, '/'))
+ program_name = strrchr(*argv, '/') + 1;
+ else
+ program_name = *argv;
+
+ if (strstr(program_name, "mmpstatus") != NULL) {
+ mmp_check = 1;
+ header_only = 1;
+ }
+ } else
+ usage();
+
+ if (!mmp_check)
+ fprintf(stderr, "dumpe2fs %s (%s)\n", E2FSPROGS_VERSION,
+ E2FSPROGS_DATE);
+
+ while ((c = getopt(argc, argv, "bfghimxVo:")) != EOF) {
+ switch (c) {
+ case 'b':
+ print_badblocks++;
+ break;
+ case 'f':
+ force++;
+ break;
+ case 'g':
+ grp_only++;
+ break;
+ case 'h':
+ header_only++;
+ break;
+ case 'i':
+ if (mmp_check)
+ mmp_info++;
+ else
+ image_dump++;
+ break;
+ case 'm':
+ mmp_check++;
+ header_only++;
+ if (image_dump) {
+ mmp_info = image_dump;
+ image_dump = 0;
+ }
+ break;
+ case 'o':
+ 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();
+ }
+ }
+ if (optind != argc - 1)
+ usage();
+
+ device_name = argv[optind++];
+ flags = EXT2_FLAG_JOURNAL_DEV_OK | EXT2_FLAG_SOFTSUPP_FEATURES |
+ EXT2_FLAG_64BITS | EXT2_FLAG_THREADS;
+ if (force)
+ flags |= EXT2_FLAG_FORCE;
+ if (image_dump)
+ flags |= EXT2_FLAG_IMAGE_FILE;
+ if (header_only)
+ flags |= EXT2_FLAG_SUPER_ONLY;
+try_open_again:
+ 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);
+ }
+ flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ if (retval && !retval_csum) {
+ retval_csum = retval;
+ error_csum = _("while trying to open %s");
+ goto try_open_again;
+ }
+ if (retval) {
+ com_err(program_name, retval, _("while trying to open %s"),
+ device_name);
+ printf("%s", _("Couldn't find valid filesystem superblock.\n"));
+ if (retval == EXT2_ET_BAD_MAGIC)
+ check_plausibility(device_name, CHECK_FS_EXIST, NULL);
+ goto out;
+ }
+ fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
+ if (ext2fs_has_feature_64bit(fs->super))
+ blocks64 = 1;
+ if (mmp_check) {
+ if (ext2fs_has_feature_mmp(fs->super) &&
+ fs->super->s_mmp_block != 0) {
+ if (mmp_info) {
+ print_mmp_block(fs);
+ printf(" mmp_block_number: ");
+ print_number(fs->super->s_mmp_block);
+ printf("\n");
+ } else {
+ retval = check_mmp(fs);
+ }
+ if (!retval && retval_csum)
+ retval = 2;
+ } else {
+ fprintf(stderr, _("%s: MMP feature not enabled.\n"),
+ program_name);
+ retval = 2;
+ }
+ } else if (print_badblocks) {
+ list_bad_blocks(fs, 1);
+ } else {
+ if (grp_only)
+ goto just_descriptors;
+ list_super(fs->super);
+ if (ext2fs_has_feature_journal_dev(fs->super)) {
+ print_journal_information(fs);
+
+ goto out_close;
+ }
+ if (ext2fs_has_feature_journal(fs->super) &&
+ (fs->super->s_journal_inum != 0))
+ print_inline_journal_information(fs);
+ if (ext2fs_has_feature_mmp(fs->super) &&
+ fs->super->s_mmp_block != 0)
+ print_mmp_block(fs);
+ list_bad_blocks(fs, 0);
+ if (header_only)
+ goto out_close;
+
+ fs->flags &= ~EXT2_FLAG_IGNORE_CSUM_ERRORS;
+try_bitmaps_again:
+ retval = ext2fs_read_bitmaps(fs);
+ if (retval && !retval_csum) {
+ fs->flags |= EXT2_FLAG_IGNORE_CSUM_ERRORS;
+ retval_csum = retval;
+ error_csum = _("while trying to read '%s' bitmaps\n");
+ goto try_bitmaps_again;
+ }
+just_descriptors:
+ list_desc(fs, grp_only);
+ }
+out_close:
+ if (retval_csum) {
+ com_err(program_name, retval_csum, error_csum, device_name);
+ printf("%s", _("*** Run e2fsck now!\n\n"));
+ if (!retval)
+ retval = retval_csum;
+ }
+ ext2fs_close_free(&fs);
+ remove_error_table(&et_ext2_error_table);
+out:
+ return retval;
+}