/*
* e2fsck.c - a consistency checker for the new extended file system.
- *
- * Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
- * redistributed under the terms of the GNU Public License.
- */
-
-/* Usage: e2fsck [-dfpnsvy] device
- * -d -- debugging this program
- * -f -- check the fs even if it is marked valid
- * -p -- "preen" the filesystem
- * -n -- open the filesystem r/o mode; never try to fix problems
- * -v -- verbose (tells how many files)
- * -y -- always answer yes to questions
*
- * The device may be a block device or a image of one, but this isn't
- * enforced (but it's not much fun on a character device :-).
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
*/
-#include <string.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <termios.h>
-#include <time.h>
-#include <getopt.h>
-#include <unistd.h>
-#include <mntent.h>
-#include <sys/ioctl.h>
-#include <malloc.h>
+#include "config.h"
+#include <errno.h>
-#include "et/com_err.h"
#include "e2fsck.h"
-#include "../version.h"
-
-extern int isatty(int);
-
-const char * program_name = "e2fsck";
-const char * device_name = NULL;
-
-/* Command line options */
-int nflag = 0;
-int yflag = 0;
-int tflag = 0; /* Do timing */
-int cflag = 0; /* check disk */
-int preen = 0;
-int rwflag = 1;
-int inode_buffer_blocks = 0;
-blk_t superblock;
-int blocksize = 0;
-int verbose = 0;
-int list = 0;
-int debug = 0;
-int force = 0;
-static int show_version_only = 0;
-
-static int replace_bad_blocks = 0;
-static char *bad_blocks_file = 0;
+#include "problem.h"
-static int possible_block_sizes[] = { 1024, 2048, 4096, 8192, 0};
-
-struct resource_track global_rtrack;
-
-static int root_filesystem = 0;
-static int read_only_root = 0;
-
-static void usage(NOARGS)
-{
- fprintf(stderr,
- "Usage: %s [-panyrdfvtFV] [-b superblock] [-B blocksize]\n"
- "\t\tdevice\n", program_name);
- exit(FSCK_USAGE);
-}
-
-static void show_stats(ext2_filsys fs)
+/*
+ * This function allocates an e2fsck context
+ */
+errcode_t e2fsck_allocate_context(e2fsck_t *ret)
{
- int inodes, inodes_used, blocks, blocks_used;
- int dir_links;
- int num_files, num_links;
-
- dir_links = 2 * fs_directory_count - 1;
- num_files = fs_total_count - dir_links;
- num_links = fs_links_count - dir_links;
- inodes = fs->super->s_inodes_count;
- inodes_used = (fs->super->s_inodes_count -
- fs->super->s_free_inodes_count);
- blocks = fs->super->s_blocks_count;
- blocks_used = (fs->super->s_blocks_count -
- fs->super->s_free_blocks_count);
-
- if (!verbose) {
- printf("%s: %d/%d files, %d/%d blocks\n", device_name,
- inodes_used, inodes, blocks_used, blocks);
- return;
+ e2fsck_t context;
+ errcode_t retval;
+ char *time_env;
+
+ retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &context);
+ if (retval)
+ return retval;
+
+ memset(context, 0, sizeof(struct e2fsck_struct));
+
+ context->process_inode_size = 256;
+ context->ext_attr_ver = 2;
+ context->blocks_per_page = 1;
+ context->htree_slack_percentage = 255;
+
+ time_env = getenv("E2FSCK_TIME");
+ if (time_env)
+ context->now = (time_t) strtoull(time_env, NULL, 0);
+ else {
+ context->now = time(0);
+ if (context->now < 1262322000) /* January 1 2010 */
+ context->flags |= E2F_FLAG_TIME_INSANE;
}
- printf ("\n%6d inode%s used (%d%%)\n", inodes_used,
- (inodes_used != 1) ? "s" : "",
- 100 * inodes_used / inodes);
- printf ("%6d block%s used (%d%%)\n"
- "%6d bad block%s\n", blocks_used,
- (blocks_used != 1) ? "s" : "",
- 100 * blocks_used / blocks, fs_badblocks_count,
- fs_badblocks_count != 1 ? "s" : "");
- printf ("\n%6d regular file%s\n"
- "%6d director%s\n"
- "%6d character device file%s\n"
- "%6d block device file%s\n"
- "%6d fifo%s\n"
- "%6d link%s\n"
- "%6d symbolic link%s (%d fast symbolic link%s)\n"
- "%6d socket%s\n"
- "------\n"
- "%6d file%s\n",
- fs_regular_count, (fs_regular_count != 1) ? "s" : "",
- fs_directory_count, (fs_directory_count != 1) ? "ies" : "y",
- fs_chardev_count, (fs_chardev_count != 1) ? "s" : "",
- fs_blockdev_count, (fs_blockdev_count != 1) ? "s" : "",
- fs_fifo_count, (fs_fifo_count != 1) ? "s" : "",
- fs_links_count - dir_links,
- ((fs_links_count - dir_links) != 1) ? "s" : "",
- fs_symlinks_count, (fs_symlinks_count != 1) ? "s" : "",
- fs_fast_symlinks_count, (fs_fast_symlinks_count != 1) ? "s" : "",
- fs_sockets_count, (fs_sockets_count != 1) ? "s" : "",
- fs_total_count - dir_links,
- ((fs_total_count - dir_links) != 1) ? "s" : "");
+
+ *ret = context;
+ return 0;
}
-static void check_mount(NOARGS)
+/*
+ * This function resets an e2fsck context; it is called when e2fsck
+ * needs to be restarted.
+ */
+errcode_t e2fsck_reset_context(e2fsck_t ctx)
{
- FILE * f;
- struct mntent * mnt;
- int cont;
- int fd;
-
- if ((f = setmntent (MOUNTED, "r")) == NULL)
- return;
- while ((mnt = getmntent (f)) != NULL)
- if (strcmp (device_name, mnt->mnt_fsname) == 0)
- break;
- endmntent (f);
- if (!mnt)
- return;
+ int i;
- if (!strcmp(mnt->mnt_dir, "/"))
- root_filesystem = 1;
+ ctx->flags &= E2F_RESET_FLAGS;
+ ctx->lost_and_found = 0;
+ ctx->bad_lost_and_found = 0;
+ if (ctx->inode_used_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_used_map);
+ ctx->inode_used_map = 0;
+ }
+ if (ctx->inode_dir_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_dir_map);
+ ctx->inode_dir_map = 0;
+ }
+ if (ctx->inode_reg_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_reg_map);
+ ctx->inode_reg_map = 0;
+ }
+ if (ctx->block_found_map) {
+ ext2fs_free_block_bitmap(ctx->block_found_map);
+ ctx->block_found_map = 0;
+ }
+ if (ctx->inode_casefold_map) {
+ ext2fs_free_block_bitmap(ctx->inode_casefold_map);
+ ctx->inode_casefold_map = 0;
+ }
+ if (ctx->inode_link_info) {
+ ext2fs_free_icount(ctx->inode_link_info);
+ ctx->inode_link_info = 0;
+ }
+ if (ctx->journal_io) {
+ if (ctx->fs && ctx->fs->io != ctx->journal_io)
+ io_channel_close(ctx->journal_io);
+ ctx->journal_io = 0;
+ }
+ if (ctx->fs && ctx->fs->dblist) {
+ ext2fs_free_dblist(ctx->fs->dblist);
+ ctx->fs->dblist = 0;
+ }
+ e2fsck_free_dir_info(ctx);
+ e2fsck_free_dx_dir_info(ctx);
+ if (ctx->refcount) {
+ ea_refcount_free(ctx->refcount);
+ ctx->refcount = 0;
+ }
+ if (ctx->refcount_extra) {
+ ea_refcount_free(ctx->refcount_extra);
+ ctx->refcount_extra = 0;
+ }
+ if (ctx->ea_block_quota_blocks) {
+ ea_refcount_free(ctx->ea_block_quota_blocks);
+ ctx->ea_block_quota_blocks = 0;
+ }
+ if (ctx->ea_block_quota_inodes) {
+ ea_refcount_free(ctx->ea_block_quota_inodes);
+ ctx->ea_block_quota_inodes = 0;
+ }
+ if (ctx->ea_inode_refs) {
+ ea_refcount_free(ctx->ea_inode_refs);
+ ctx->ea_inode_refs = 0;
+ }
+ if (ctx->block_dup_map) {
+ ext2fs_free_block_bitmap(ctx->block_dup_map);
+ ctx->block_dup_map = 0;
+ }
+ if (ctx->block_ea_map) {
+ ext2fs_free_block_bitmap(ctx->block_ea_map);
+ ctx->block_ea_map = 0;
+ }
+ if (ctx->block_metadata_map) {
+ ext2fs_free_block_bitmap(ctx->block_metadata_map);
+ ctx->block_metadata_map = 0;
+ }
+ if (ctx->inode_bb_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_bb_map);
+ ctx->inode_bb_map = 0;
+ }
+ if (ctx->inode_bad_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_bad_map);
+ ctx->inode_bad_map = 0;
+ }
+ if (ctx->inode_imagic_map) {
+ ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
+ ctx->inode_imagic_map = 0;
+ }
+ if (ctx->dirs_to_hash) {
+ ext2fs_u32_list_free(ctx->dirs_to_hash);
+ ctx->dirs_to_hash = 0;
+ }
+ destroy_encrypted_file_info(ctx);
/*
- * If the root is mounted read-only, then /etc/mtab is
- * probably not correct; so we won't issue a warning based on
- * it.
+ * Clear the array of invalid meta-data flags
*/
- fd = open(MOUNTED, O_RDWR);
- if (fd < 0) {
- if (errno == EROFS) {
- read_only_root = 1;
- return;
- }
- } else
- close(fd);
-
- if (!rwflag) {
- printf("Warning! %s is mounted.\n", device_name);
- return;
+ if (ctx->invalid_inode_bitmap_flag) {
+ ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag);
+ ctx->invalid_inode_bitmap_flag = 0;
}
-
- printf ("%s is mounted. ", device_name);
- if (isatty (0) && isatty (1))
- cont = ask_yn("Do you really want to continue", -1);
- else
- cont = 0;
- if (!cont) {
- printf ("check aborted.\n");
- exit (0);
+ if (ctx->invalid_block_bitmap_flag) {
+ ext2fs_free_mem(&ctx->invalid_block_bitmap_flag);
+ ctx->invalid_block_bitmap_flag = 0;
}
- return;
-}
-
-static void sync_disks(NOARGS)
-{
- sync();
- sync();
- sleep(1);
- sync();
-}
-
-static void check_super_block(ext2_filsys fs)
-{
- blk_t first_block, last_block;
- int blocks_per_group = fs->super->s_blocks_per_group;
- int i;
-
- first_block = fs->super->s_first_data_block;
- last_block = first_block + blocks_per_group;
-
- for (i = 0; i < fs->group_desc_count; i++) {
- if ((fs->group_desc[i].bg_block_bitmap < first_block) ||
- (fs->group_desc[i].bg_block_bitmap >= last_block)) {
- printf("Block bitmap %ld for group %d not in group.\n",
- fs->group_desc[i].bg_block_bitmap, i);
- fatal_error(0);
- }
- if ((fs->group_desc[i].bg_inode_bitmap < first_block) ||
- (fs->group_desc[i].bg_inode_bitmap >= last_block)) {
- printf("Inode bitmap %ld for group %d not in group.\n",
- fs->group_desc[i].bg_inode_bitmap, i);
- fatal_error(0);
- }
- if ((fs->group_desc[i].bg_inode_table < first_block) ||
- ((fs->group_desc[i].bg_inode_table +
- fs->inode_blocks_per_group - 1) >= last_block)) {
- printf("Inode table %ld for group %d not in group.\n",
- fs->group_desc[i].bg_inode_table, i);
- fatal_error(0);
- }
- first_block += fs->super->s_blocks_per_group;
- last_block += fs->super->s_blocks_per_group;
+ if (ctx->invalid_inode_table_flag) {
+ ext2fs_free_mem(&ctx->invalid_inode_table_flag);
+ ctx->invalid_inode_table_flag = 0;
+ }
+ if (ctx->casefolded_dirs) {
+ ext2fs_u32_list_free(ctx->casefolded_dirs);
+ ctx->casefolded_dirs = 0;
}
- return;
+ if (ctx->inode_count) {
+ ext2fs_free_icount(ctx->inode_count);
+ ctx->inode_count = 0;
+ }
+
+ /* Clear statistic counters */
+ ctx->fs_directory_count = 0;
+ ctx->fs_regular_count = 0;
+ ctx->fs_blockdev_count = 0;
+ ctx->fs_chardev_count = 0;
+ ctx->fs_links_count = 0;
+ ctx->fs_symlinks_count = 0;
+ ctx->fs_fast_symlinks_count = 0;
+ ctx->fs_fifo_count = 0;
+ ctx->fs_total_count = 0;
+ ctx->fs_badblocks_count = 0;
+ ctx->fs_sockets_count = 0;
+ ctx->fs_ind_count = 0;
+ ctx->fs_dind_count = 0;
+ ctx->fs_tind_count = 0;
+ ctx->fs_fragmented = 0;
+ ctx->fs_fragmented_dir = 0;
+ ctx->large_files = 0;
+ ctx->large_dirs = 0;
+
+ for (i=0; i < MAX_EXTENT_DEPTH_COUNT; i++)
+ ctx->extent_depth_count[i] = 0;
+
+ /* Reset the superblock to the user's requested value */
+ ctx->superblock = ctx->use_superblock;
+
+ return 0;
}
-/*
- * This routine checks to see if a filesystem can be skipped; if so,
- * it will exit with E2FSCK_OK. Under some conditions it will print a
- * message explaining why a check is being forced.
- */
-static void check_if_skip(ext2_filsys fs)
+void e2fsck_free_context(e2fsck_t ctx)
{
- const char *reason = NULL;
-
- if (force || bad_blocks_file || cflag)
- return;
-
- if (fs->super->s_state & EXT2_ERROR_FS)
- reason = "contains a file system with errors";
- else if (fs->super->s_mnt_count >=
- (unsigned) fs->super->s_max_mnt_count)
- reason = "has reached maximal mount count";
- else if (fs->super->s_checkinterval &&
- time(0) >= (fs->super->s_lastcheck +
- fs->super->s_checkinterval))
- reason = "has gone too long without being checked";
- if (reason) {
- printf("%s %s, check forced.\n", device_name, reason);
+ if (!ctx)
return;
- }
- if (fs->super->s_state & EXT2_VALID_FS) {
- printf("%s is clean, no check.\n", device_name);
- exit(FSCK_OK);
- }
-}
-static void PRS(int argc, char *argv[])
-{
- int flush = 0;
- char c;
-#ifdef MTRACE
- extern void *mallwatch;
-#endif
- char *oldpath, newpath[PATH_MAX];
+ e2fsck_reset_context(ctx);
+ if (ctx->blkid)
+ blkid_put_cache(ctx->blkid);
- /* Update our PATH to include /sbin */
- strcpy(newpath, "PATH=/sbin:");
- if ((oldpath = getenv("PATH")) != NULL)
- strcat(newpath, oldpath);
- putenv(newpath);
+ if (ctx->profile)
+ profile_release(ctx->profile);
- setbuf(stdout, NULL);
- setbuf(stderr, NULL);
- initialize_ext2_error_table();
-
- if (argc && *argv)
- program_name = *argv;
- while ((c = getopt (argc, argv, "panyrcB:dfvtFVM:b:I:P:l:L:")) != EOF)
- switch (c) {
- case 'p':
- case 'a':
- preen = 1;
- yflag = nflag = 0;
- break;
- case 'n':
- nflag = 1;
- preen = yflag = 0;
- break;
- case 'y':
- yflag = 1;
- preen = nflag = 0;
- break;
- case 't':
- tflag++;
- break;
- case 'c':
- cflag++;
- break;
- case 'r':
- /* What we do by default, anyway! */
- break;
- case 'b':
- superblock = atoi(optarg);
- break;
- case 'B':
- blocksize = atoi(optarg);
- break;
- case 'I':
- inode_buffer_blocks = atoi(optarg);
- break;
- case 'P':
- process_inode_size = atoi(optarg);
- break;
- case 'L':
- replace_bad_blocks++;
- case 'l':
- bad_blocks_file = malloc(strlen(optarg)+1);
- if (!bad_blocks_file)
- fatal_error("Couldn't malloc bad_blocks_file");
- strcpy(bad_blocks_file, optarg);
- break;
- case 'd':
- debug = 1;
- break;
- case 'f':
- force = 1;
- break;
- case 'F':
- flush = 1;
- break;
- case 'v':
- verbose = 1;
- break;
- case 'V':
- show_version_only = 1;
- break;
-#ifdef MTRACE
- case 'M':
- mallwatch = (void *) strtol(optarg, NULL, 0);
- break;
-#endif
- default:
- usage ();
- }
- if (show_version_only)
- return;
- if (optind != argc - 1)
- usage ();
- if (nflag && !bad_blocks_file && !cflag)
- rwflag = 0;
- device_name = argv[optind];
- if (flush) {
- int fd = open(device_name, O_RDONLY, 0);
+ if (ctx->filesystem_name)
+ ext2fs_free_mem(&ctx->filesystem_name);
- if (fd < 0) {
- com_err("open", errno, "while opening %s for flushing",
- device_name);
- exit(FSCK_ERROR);
- }
- if (ioctl(fd, BLKFLSBUF, 0) < 0) {
- com_err("BLKFLSBUF", errno, "while trying to flush %s",
- device_name);
- exit(FSCK_ERROR);
- }
- close(fd);
- }
-}
-
-int main (int argc, char *argv[])
-{
- errcode_t retval = 0;
- int exit_value = FSCK_OK;
- int i;
- ext2_filsys fs;
-
-#ifdef MTRACE
- mtrace();
-#endif
-#ifdef MCHECK
- mcheck(0);
-#endif
-
- init_resource_track(&global_rtrack);
+ if (ctx->device_name)
+ ext2fs_free_mem(&ctx->device_name);
- PRS(argc, argv);
+ if (ctx->log_fn)
+ free(ctx->log_fn);
- if (!preen)
- fprintf (stderr, "e2fsck %s, %s for EXT2 FS %s, %s\n",
- E2FSPROGS_VERSION, E2FSPROGS_DATE,
- EXT2FS_VERSION, EXT2FS_DATE);
+ if (ctx->logf)
+ fclose(ctx->logf);
- if (show_version_only)
- exit(0);
-
- check_mount();
-
- if (!preen && !nflag && !yflag) {
- if (!isatty (0) || !isatty (1))
- die ("need terminal for interactive repairs");
- }
- sync_disks();
- if (superblock && blocksize) {
- retval = ext2fs_open(device_name, rwflag ? EXT2_FLAG_RW : 0,
- superblock, blocksize, unix_io_manager,
- &fs);
- } else if (superblock) {
- for (i=0; possible_block_sizes[i]; i++) {
- retval = ext2fs_open(device_name,
- rwflag ? EXT2_FLAG_RW : 0,
- superblock,
- possible_block_sizes[i],
- unix_io_manager, &fs);
- if (!retval)
- break;
- }
- } else
- retval = ext2fs_open(device_name, rwflag ? EXT2_FLAG_RW : 0,
- 0, 0, unix_io_manager, &fs);
- if (retval) {
- com_err(program_name, retval, "while trying to open %s",
- device_name);
- printf("Couldn't find valid filesystem superblock.\n");
- fatal_error(0);
+ if (ctx->problem_log_fn)
+ free(ctx->problem_log_fn);
+
+ if (ctx->problem_logf) {
+ fputs("</problem_log>\n", ctx->problem_logf);
+ fclose(ctx->problem_logf);
}
- /*
- * If the user specified a specific superblock, presumably the
- * master superblock has been trashed. So we mark the
- * superblock as dirty, so it can be written out.
- */
- if (superblock && rwflag)
- ext2fs_mark_super_dirty(fs);
+ ext2fs_free_mem(&ctx);
+}
- ehandler_init(fs->io);
+/*
+ * This function runs through the e2fsck passes and calls them all,
+ * returning restart, abort, or cancel as necessary...
+ */
+typedef void (*pass_t)(e2fsck_t ctx);
- check_super_block(fs);
- check_if_skip(fs);
- if (bad_blocks_file)
- read_bad_blocks_file(fs, bad_blocks_file, replace_bad_blocks);
- else if (cflag)
- test_disk(fs);
+static pass_t e2fsck_passes[] = {
+ e2fsck_pass1, e2fsck_pass1e, e2fsck_pass2, e2fsck_pass3,
+ e2fsck_pass4, e2fsck_pass5, 0 };
- /*
- * Mark the system as valid, 'til proven otherwise
- */
- ext2fs_mark_valid(fs);
-
- pass1(fs);
- pass2(fs);
- pass3(fs);
- pass4(fs);
- pass5(fs);
+int e2fsck_run(e2fsck_t ctx)
+{
+ int i;
+ pass_t e2fsck_pass;
-#ifdef MTRACE
- mtrace_print("Cleanup");
-#endif
- if (ext2fs_test_changed(fs)) {
- exit_value = FSCK_NONDESTRUCT;
- if (!preen)
- printf("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n",
- device_name);
- if (root_filesystem && !read_only_root) {
- printf("%s: ***** REBOOT LINUX *****\n", device_name);
- exit_value = FSCK_REBOOT;
- }
+#ifdef HAVE_SETJMP_H
+ if (setjmp(ctx->abort_loc)) {
+ ctx->flags &= ~E2F_FLAG_SETJMP_OK;
+ return (ctx->flags & E2F_FLAG_RUN_RETURN);
}
- if (!ext2fs_test_valid(fs))
- exit_value = FSCK_UNCORRECTED;
- if (rwflag) {
- if (ext2fs_test_valid(fs))
- fs->super->s_state = EXT2_VALID_FS;
- else
- fs->super->s_state &= ~EXT2_VALID_FS;
- fs->super->s_mnt_count = 0;
- fs->super->s_lastcheck = time(NULL);
- ext2fs_mark_super_dirty(fs);
+ ctx->flags |= E2F_FLAG_SETJMP_OK;
+#endif
+
+ for (i=0; (e2fsck_pass = e2fsck_passes[i]); i++) {
+ if (ctx->flags & E2F_FLAG_RUN_RETURN)
+ break;
+ if (e2fsck_mmp_update(ctx->fs))
+ fatal_error(ctx, 0);
+ e2fsck_pass(ctx);
+ if (ctx->progress)
+ (void) (ctx->progress)(ctx, 0, 0, 0);
}
- show_stats(fs);
+ ctx->flags &= ~E2F_FLAG_SETJMP_OK;
- write_bitmaps(fs);
- ext2fs_close(fs);
- sync_disks();
-
- if (tflag)
- print_resource_track(&global_rtrack);
-
- return exit_value;
+ if (ctx->flags & E2F_FLAG_RUN_RETURN)
+ return (ctx->flags & E2F_FLAG_RUN_RETURN);
+ return 0;
}
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff