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-rw-r--r--e2fsprogs/e2fsck.c1179
1 files changed, 1179 insertions, 0 deletions
diff --git a/e2fsprogs/e2fsck.c b/e2fsprogs/e2fsck.c
new file mode 100644
index 0000000..f1adc85
--- /dev/null
+++ b/e2fsprogs/e2fsck.c
@@ -0,0 +1,1179 @@
+/*
+ * unix.c - The unix-specific code for e2fsck
+ *
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <ctype.h>
+#include <time.h>
+#ifdef HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#else
+extern char *optarg;
+extern int optind;
+#endif
+#include <unistd.h>
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#ifdef HAVE_MNTENT_H
+#include <mntent.h>
+#endif
+#ifdef HAVE_SYS_IOCTL_H
+#include <sys/ioctl.h>
+#endif
+#ifdef HAVE_MALLOC_H
+#include <malloc.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_DIRENT_H
+#include <dirent.h>
+#endif
+
+#include "e2fsbb.h"
+#include "et/com_err.h"
+#include "e2fsck/e2fsck.h"
+#include "e2fsck/problem.h"
+//#include "../version.h"
+
+/* Command line options */
+static int swapfs;
+#ifdef ENABLE_SWAPFS
+static int normalize_swapfs;
+#endif
+static int cflag; /* check disk */
+static int show_version_only;
+static int verbose;
+
+static int replace_bad_blocks;
+static int keep_bad_blocks;
+static char *bad_blocks_file;
+
+e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
+
+#ifdef __CONFIG_JBD_DEBUG__E2FS /* Enabled by configure --enable-jfs-debug */
+int journal_enable_debug = -1;
+#endif
+
+#if 0
+static void usage(e2fsck_t ctx)
+{
+ fprintf(stderr,
+ _("Usage: %s [-panyrcdfvstDFSV] [-b superblock] [-B blocksize]\n"
+ "\t\t[-I inode_buffer_blocks] [-P process_inode_size]\n"
+ "\t\t[-l|-L bad_blocks_file] [-C fd] [-j ext-journal]\n"
+ "\t\t[-E extended-options] device\n"),
+ ctx->program_name);
+
+ fprintf(stderr, _("\nEmergency help:\n"
+ " -p Automatic repair (no questions)\n"
+ " -n Make no changes to the filesystem\n"
+ " -y Assume \"yes\" to all questions\n"
+ " -c Check for bad blocks and add them to the badblock list\n"
+ " -f Force checking even if filesystem is marked clean\n"));
+ fprintf(stderr, _(""
+ " -v Be verbose\n"
+ " -b superblock Use alternative superblock\n"
+ " -B blocksize Force blocksize when looking for superblock\n"
+ " -j external-journal Set location of the external journal\n"
+ " -l bad_blocks_file Add to badblocks list\n"
+ " -L bad_blocks_file Set badblocks list\n"
+ ));
+
+ exit(FSCK_USAGE);
+}
+#endif
+
+static void show_stats(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ int inodes, inodes_used, blocks, blocks_used;
+ int dir_links;
+ int num_files, num_links;
+ int frag_percent;
+
+ dir_links = 2 * ctx->fs_directory_count - 1;
+ num_files = ctx->fs_total_count - dir_links;
+ num_links = ctx->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);
+
+ frag_percent = (10000 * ctx->fs_fragmented) / inodes_used;
+ frag_percent = (frag_percent + 5) / 10;
+
+ if (!verbose) {
+ printf("%s: %d/%d files (%0d.%d%% non-contiguous), %d/%d blocks\n",
+ ctx->device_name, inodes_used, inodes,
+ frag_percent / 10, frag_percent % 10,
+ blocks_used, blocks);
+ return;
+ }
+ printf (P_("\n%8d inode used (%d%%)\n", "\n%8d inodes used (%d%%)\n",
+ inodes_used), inodes_used, 100 * inodes_used / inodes);
+ printf (P_("%8d non-contiguous inode (%0d.%d%%)\n",
+ "%8d non-contiguous inodes (%0d.%d%%)\n",
+ ctx->fs_fragmented),
+ ctx->fs_fragmented, frag_percent / 10, frag_percent % 10);
+ printf (_(" # of inodes with ind/dind/tind blocks: %d/%d/%d\n"),
+ ctx->fs_ind_count, ctx->fs_dind_count, ctx->fs_tind_count);
+ printf (P_("%8d block used (%d%%)\n", "%8d blocks used (%d%%)\n",
+ blocks_used),
+ blocks_used, (int) ((long long) 100 * blocks_used / blocks));
+ printf (P_("%8d bad block\n", "%8d bad blocks\n",
+ ctx->fs_badblocks_count), ctx->fs_badblocks_count);
+ printf (P_("%8d large file\n", "%8d large files\n",
+ ctx->large_files), ctx->large_files);
+ printf (P_("\n%8d regular file\n", "\n%8d regular files\n",
+ ctx->fs_regular_count), ctx->fs_regular_count);
+ printf (P_("%8d directory\n", "%8d directories\n",
+ ctx->fs_directory_count), ctx->fs_directory_count);
+ printf (P_("%8d character device file\n",
+ "%8d character device files\n", ctx->fs_chardev_count),
+ ctx->fs_chardev_count);
+ printf (P_("%8d block device file\n", "%8d block device files\n",
+ ctx->fs_blockdev_count), ctx->fs_blockdev_count);
+ printf (P_("%8d fifo\n", "%8d fifos\n", ctx->fs_fifo_count),
+ ctx->fs_fifo_count);
+ printf (P_("%8d link\n", "%8d links\n",
+ ctx->fs_links_count - dir_links),
+ ctx->fs_links_count - dir_links);
+ printf (P_("%8d symbolic link", "%8d symbolic links",
+ ctx->fs_symlinks_count), ctx->fs_symlinks_count);
+ printf (P_(" (%d fast symbolic link)\n", " (%d fast symbolic links)\n",
+ ctx->fs_fast_symlinks_count), ctx->fs_fast_symlinks_count);
+ printf (P_("%8d socket\n", "%8d sockets\n", ctx->fs_sockets_count),
+ ctx->fs_sockets_count);
+ printf ("--------\n");
+ printf (P_("%8d file\n", "%8d files\n",
+ ctx->fs_total_count - dir_links),
+ ctx->fs_total_count - dir_links);
+}
+
+static void check_mount(e2fsck_t ctx)
+{
+ errcode_t retval;
+ int cont;
+
+ retval = ext2fs_check_if_mounted(ctx->filesystem_name,
+ &ctx->mount_flags);
+ if (retval) {
+ com_err("ext2fs_check_if_mount", retval,
+ _("while determining whether %s is mounted."),
+ ctx->filesystem_name);
+ return;
+ }
+
+ /*
+ * If the filesystem isn't mounted, or it's the root filesystem
+ * and it's mounted read-only, then everything's fine.
+ */
+ if ((!(ctx->mount_flags & EXT2_MF_MOUNTED)) ||
+ ((ctx->mount_flags & EXT2_MF_ISROOT) &&
+ (ctx->mount_flags & EXT2_MF_READONLY)))
+ return;
+
+ if (ctx->options & E2F_OPT_READONLY) {
+ printf(_("Warning! %s is mounted.\n"), ctx->filesystem_name);
+ return;
+ }
+
+ printf(_("%s is mounted. "), ctx->filesystem_name);
+ if (!ctx->interactive)
+ fatal_error(ctx, _("Cannot continue, aborting.\n\n"));
+ printf(_("\n\n\007\007\007\007WARNING!!! "
+ "Running e2fsck on a mounted filesystem may cause\n"
+ "SEVERE filesystem damage.\007\007\007\n\n"));
+ cont = ask_yn(_("Do you really want to continue"), -1);
+ if (!cont) {
+ printf (_("check aborted.\n"));
+ exit (0);
+ }
+ return;
+}
+
+static int is_on_batt(void)
+{
+ FILE *f;
+ DIR *d;
+ char tmp[80], tmp2[80], fname[80];
+ unsigned int acflag;
+ struct dirent* de;
+
+ f = fopen("/proc/apm", "r");
+ if (f) {
+ if (fscanf(f, "%s %s %s %x", tmp, tmp, tmp, &acflag) != 4)
+ acflag = 1;
+ fclose(f);
+ return (acflag != 1);
+ }
+ d = opendir("/proc/acpi/ac_adapter");
+ if (d) {
+ while ((de=readdir(d)) != NULL) {
+ if (!strncmp(".", de->d_name, 1))
+ continue;
+ snprintf(fname, 80, "/proc/acpi/ac_adapter/%s/state",
+ de->d_name);
+ f = fopen(fname, "r");
+ if (!f)
+ continue;
+ if (fscanf(f, "%s %s", tmp2, tmp) != 2)
+ tmp[0] = 0;
+ fclose(f);
+ if (strncmp(tmp, "off-line", 8) == 0) {
+ closedir(d);
+ return 1;
+ }
+ }
+ closedir(d);
+ }
+ 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(e2fsck_t ctx)
+{
+ ext2_filsys fs = ctx->fs;
+ const char *reason = NULL;
+ unsigned int reason_arg = 0;
+ long next_check;
+ int batt = is_on_batt();
+ time_t now = time(0);
+
+ if ((ctx->options & E2F_OPT_FORCE) || bad_blocks_file ||
+ cflag || swapfs)
+ return;
+
+ if ((fs->super->s_state & EXT2_ERROR_FS) ||
+ !ext2fs_test_valid(fs))
+ reason = _(" contains a file system with errors");
+ else if ((fs->super->s_state & EXT2_VALID_FS) == 0)
+ reason = _(" was not cleanly unmounted");
+ else if ((fs->super->s_max_mnt_count > 0) &&
+ (fs->super->s_mnt_count >=
+ (unsigned) fs->super->s_max_mnt_count)) {
+ reason = _(" has been mounted %u times without being checked");
+ reason_arg = fs->super->s_mnt_count;
+ if (batt && (fs->super->s_mnt_count <
+ (unsigned) fs->super->s_max_mnt_count*2))
+ reason = 0;
+ } else if (fs->super->s_checkinterval &&
+ ((now - fs->super->s_lastcheck) >=
+ fs->super->s_checkinterval)) {
+ reason = _(" has gone %u days without being checked");
+ reason_arg = (now - fs->super->s_lastcheck)/(3600*24);
+ if (batt && ((now - fs->super->s_lastcheck) <
+ fs->super->s_checkinterval*2))
+ reason = 0;
+ }
+ if (reason) {
+ fputs(ctx->device_name, stdout);
+ printf(reason, reason_arg);
+ fputs(_(", check forced.\n"), stdout);
+ return;
+ }
+ printf(_("%s: clean, %d/%d files, %d/%d blocks"), ctx->device_name,
+ fs->super->s_inodes_count - fs->super->s_free_inodes_count,
+ fs->super->s_inodes_count,
+ fs->super->s_blocks_count - fs->super->s_free_blocks_count,
+ fs->super->s_blocks_count);
+ next_check = 100000;
+ if (fs->super->s_max_mnt_count > 0) {
+ next_check = fs->super->s_max_mnt_count - fs->super->s_mnt_count;
+ if (next_check <= 0)
+ next_check = 1;
+ }
+ if (fs->super->s_checkinterval &&
+ ((now - fs->super->s_lastcheck) >= fs->super->s_checkinterval))
+ next_check = 1;
+ if (next_check <= 5) {
+ if (next_check == 1)
+ fputs(_(" (check after next mount)"), stdout);
+ else
+ printf(_(" (check in %ld mounts)"), next_check);
+ }
+ fputc('\n', stdout);
+ ext2fs_close(fs);
+ ctx->fs = NULL;
+ e2fsck_free_context(ctx);
+ exit(FSCK_OK);
+}
+
+/*
+ * For completion notice
+ */
+struct percent_tbl {
+ int max_pass;
+ int table[32];
+};
+struct percent_tbl e2fsck_tbl = {
+ 5, { 0, 70, 90, 92, 95, 100 }
+};
+static char bar[128], spaces[128];
+
+static float calc_percent(struct percent_tbl *tbl, int pass, int curr,
+ int max)
+{
+ float percent;
+
+ if (pass <= 0)
+ return 0.0;
+ if (pass > tbl->max_pass || max == 0)
+ return 100.0;
+ percent = ((float) curr) / ((float) max);
+ return ((percent * (tbl->table[pass] - tbl->table[pass-1]))
+ + tbl->table[pass-1]);
+}
+
+extern void e2fsck_clear_progbar(e2fsck_t ctx)
+{
+ if (!(ctx->flags & E2F_FLAG_PROG_BAR))
+ return;
+
+ printf("%s%s\r%s", ctx->start_meta, spaces + (sizeof(spaces) - 80),
+ ctx->stop_meta);
+ fflush(stdout);
+ ctx->flags &= ~E2F_FLAG_PROG_BAR;
+}
+
+int e2fsck_simple_progress(e2fsck_t ctx, const char *label, float percent,
+ unsigned int dpynum)
+{
+ static const char spinner[] = "\\|/-";
+ int i;
+ unsigned int tick;
+ struct timeval tv;
+ int dpywidth;
+ int fixed_percent;
+
+ if (ctx->flags & E2F_FLAG_PROG_SUPPRESS)
+ return 0;
+
+ /*
+ * Calculate the new progress position. If the
+ * percentage hasn't changed, then we skip out right
+ * away.
+ */
+ fixed_percent = (int) ((10 * percent) + 0.5);
+ if (ctx->progress_last_percent == fixed_percent)
+ return 0;
+ ctx->progress_last_percent = fixed_percent;
+
+ /*
+ * If we've already updated the spinner once within
+ * the last 1/8th of a second, no point doing it
+ * again.
+ */
+ gettimeofday(&tv, NULL);
+ tick = (tv.tv_sec << 3) + (tv.tv_usec / (1000000 / 8));
+ if ((tick == ctx->progress_last_time) &&
+ (fixed_percent != 0) && (fixed_percent != 1000))
+ return 0;
+ ctx->progress_last_time = tick;
+
+ /*
+ * Advance the spinner, and note that the progress bar
+ * will be on the screen
+ */
+ ctx->progress_pos = (ctx->progress_pos+1) & 3;
+ ctx->flags |= E2F_FLAG_PROG_BAR;
+
+ dpywidth = 66 - strlen(label);
+ dpywidth = 8 * (dpywidth / 8);
+ if (dpynum)
+ dpywidth -= 8;
+
+ i = ((percent * dpywidth) + 50) / 100;
+ printf("%s%s: |%s%s", ctx->start_meta, label,
+ bar + (sizeof(bar) - (i+1)),
+ spaces + (sizeof(spaces) - (dpywidth - i + 1)));
+ if (fixed_percent == 1000)
+ fputc('|', stdout);
+ else
+ fputc(spinner[ctx->progress_pos & 3], stdout);
+ printf(" %4.1f%% ", percent);
+ if (dpynum)
+ printf("%u\r", dpynum);
+ else
+ fputs(" \r", stdout);
+ fputs(ctx->stop_meta, stdout);
+
+ if (fixed_percent == 1000)
+ e2fsck_clear_progbar(ctx);
+ fflush(stdout);
+
+ return 0;
+}
+
+static int e2fsck_update_progress(e2fsck_t ctx, int pass,
+ unsigned long cur, unsigned long max)
+{
+ char buf[80];
+ float percent;
+
+ if (pass == 0)
+ return 0;
+
+ if (ctx->progress_fd) {
+ sprintf(buf, "%d %lu %lu\n", pass, cur, max);
+ write(ctx->progress_fd, buf, strlen(buf));
+ } else {
+ percent = calc_percent(&e2fsck_tbl, pass, cur, max);
+ e2fsck_simple_progress(ctx, ctx->device_name,
+ percent, 0);
+ }
+ return 0;
+}
+
+#define PATH_SET "PATH=/sbin"
+
+static void reserve_stdio_fds(void)
+{
+ int fd;
+
+ while (1) {
+ fd = open("/dev/null", O_RDWR);
+ if (fd > 2)
+ break;
+ if (fd < 0) {
+ fprintf(stderr, _("ERROR: Couldn't open "
+ "/dev/null (%s)\n"),
+ strerror(errno));
+ break;
+ }
+ }
+ close(fd);
+}
+
+#ifdef HAVE_SIGNAL_H
+static void signal_progress_on(int sig EXT2FS_ATTR((unused)))
+{
+ e2fsck_t ctx = e2fsck_global_ctx;
+
+ if (!ctx)
+ return;
+
+ ctx->progress = e2fsck_update_progress;
+ ctx->progress_fd = 0;
+}
+
+static void signal_progress_off(int sig EXT2FS_ATTR((unused)))
+{
+ e2fsck_t ctx = e2fsck_global_ctx;
+
+ if (!ctx)
+ return;
+
+ e2fsck_clear_progbar(ctx);
+ ctx->progress = 0;
+}
+
+static void signal_cancel(int sig EXT2FS_ATTR((unused)))
+{
+ e2fsck_t ctx = e2fsck_global_ctx;
+
+ if (!ctx)
+ exit(FSCK_CANCELED);
+
+ ctx->flags |= E2F_FLAG_CANCEL;
+}
+#endif
+
+static void parse_extended_opts(e2fsck_t ctx, const char *opts)
+{
+ char *buf, *token, *next, *p, *arg;
+ int ea_ver;
+ int extended_usage = 0;
+
+ buf = string_copy(ctx, opts, 0);
+ 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, "ea_ver") == 0) {
+ if (!arg) {
+ extended_usage++;
+ continue;
+ }
+ ea_ver = strtoul(arg, &p, 0);
+ if (*p ||
+ ((ea_ver != 1) && (ea_ver != 2))) {
+ fprintf(stderr,
+ _("Invalid EA version.\n"));
+ extended_usage++;
+ continue;
+ }
+ ctx->ext_attr_ver = ea_ver;
+ } else
+ extended_usage++;
+ }
+ if (extended_usage) {
+ fprintf(stderr, _("Extended options are separated by commas, "
+ "and may take an argument which\n"
+ "is set off by an equals ('=') sign. "
+ "Valid raid options are:\n"
+ "\tea_ver=<ea_version (1 or 2)\n\n"));
+ exit(1);
+ }
+}
+
+
+static errcode_t PRS(int argc, char *argv[], e2fsck_t *ret_ctx)
+{
+ int flush = 0;
+ int c, fd;
+#ifdef MTRACE
+ extern void *mallwatch;
+#endif
+ e2fsck_t ctx;
+ errcode_t retval;
+#ifdef HAVE_SIGNAL_H
+ struct sigaction sa;
+#endif
+ char *extended_opts = 0;
+
+ retval = e2fsck_allocate_context(&ctx);
+ if (retval)
+ return retval;
+
+ *ret_ctx = ctx;
+
+ setvbuf(stdout, NULL, _IONBF, BUFSIZ);
+ setvbuf(stderr, NULL, _IONBF, BUFSIZ);
+ if (isatty(0) && isatty(1)) {
+ ctx->interactive = 1;
+ } else {
+ ctx->start_meta[0] = '\001';
+ ctx->stop_meta[0] = '\002';
+ }
+ memset(bar, '=', sizeof(bar)-1);
+ memset(spaces, ' ', sizeof(spaces)-1);
+ blkid_get_cache(&ctx->blkid, NULL);
+
+ if (argc && *argv)
+ ctx->program_name = *argv;
+ else
+ ctx->program_name = "e2fsck";
+ while ((c = getopt (argc, argv, "panyrcC:B:dE:fvtFVM:b:I:j:P:l:L:N:SsDk")) != EOF)
+ switch (c) {
+ case 'C':
+ ctx->progress = e2fsck_update_progress;
+ ctx->progress_fd = atoi(optarg);
+ if (!ctx->progress_fd)
+ break;
+ /* Validate the file descriptor to avoid disasters */
+ fd = dup(ctx->progress_fd);
+ if (fd < 0) {
+ fprintf(stderr,
+ _("Error validating file descriptor %d: %s\n"),
+ ctx->progress_fd,
+ error_message(errno));
+ fatal_error(ctx,
+ _("Invalid completion information file descriptor"));
+ } else
+ close(fd);
+ break;
+ case 'D':
+ ctx->options |= E2F_OPT_COMPRESS_DIRS;
+ break;
+ case 'E':
+ extended_opts = optarg;
+ break;
+ case 'p':
+ case 'a':
+ if (ctx->options & (E2F_OPT_YES|E2F_OPT_NO)) {
+ conflict_opt:
+ fatal_error(ctx,
+ _("Only one the options -p/-a, -n or -y may be specified."));
+ }
+ ctx->options |= E2F_OPT_PREEN;
+ break;
+ case 'n':
+ if (ctx->options & (E2F_OPT_YES|E2F_OPT_PREEN))
+ goto conflict_opt;
+ ctx->options |= E2F_OPT_NO;
+ break;
+ case 'y':
+ if (ctx->options & (E2F_OPT_PREEN|E2F_OPT_NO))
+ goto conflict_opt;
+ ctx->options |= E2F_OPT_YES;
+ break;
+ case 't':
+#ifdef RESOURCE_TRACK
+ if (ctx->options & E2F_OPT_TIME)
+ ctx->options |= E2F_OPT_TIME2;
+ else
+ ctx->options |= E2F_OPT_TIME;
+#else
+ fprintf(stderr, _("The -t option is not "
+ "supported on this version of e2fsck.\n"));
+#endif
+ break;
+ case 'c':
+ if (cflag++)
+ ctx->options |= E2F_OPT_WRITECHECK;
+ ctx->options |= E2F_OPT_CHECKBLOCKS;
+ break;
+ case 'r':
+ /* What we do by default, anyway! */
+ break;
+ case 'b':
+ ctx->use_superblock = atoi(optarg);
+ ctx->flags |= E2F_FLAG_SB_SPECIFIED;
+ break;
+ case 'B':
+ ctx->blocksize = atoi(optarg);
+ break;
+ case 'I':
+ ctx->inode_buffer_blocks = atoi(optarg);
+ break;
+ case 'j':
+ ctx->journal_name = string_copy(ctx, optarg, 0);
+ break;
+ case 'P':
+ ctx->process_inode_size = atoi(optarg);
+ break;
+ case 'L':
+ replace_bad_blocks++;
+ case 'l':
+ bad_blocks_file = string_copy(ctx, optarg, 0);
+ break;
+ case 'd':
+ ctx->options |= E2F_OPT_DEBUG;
+ break;
+ case 'f':
+ ctx->options |= E2F_OPT_FORCE;
+ 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
+ case 'N':
+ ctx->device_name = optarg;
+ break;
+#ifdef ENABLE_SWAPFS
+ case 's':
+ normalize_swapfs = 1;
+ case 'S':
+ swapfs = 1;
+ break;
+#else
+ case 's':
+ case 'S':
+ fprintf(stderr, _("Byte-swapping filesystems "
+ "not compiled in this version "
+ "of e2fsck\n"));
+ exit(1);
+#endif
+ case 'k':
+ keep_bad_blocks++;
+ break;
+ default:
+ usage();
+ }
+ if (show_version_only)
+ return 0;
+ if (optind != argc - 1)
+ usage();
+ if ((ctx->options & E2F_OPT_NO) && !bad_blocks_file &&
+ !cflag && !swapfs && !(ctx->options & E2F_OPT_COMPRESS_DIRS))
+ ctx->options |= E2F_OPT_READONLY;
+ ctx->io_options = strchr(argv[optind], '?');
+ if (ctx->io_options)
+ *ctx->io_options++ = 0;
+ ctx->filesystem_name = blkid_get_devname(ctx->blkid, argv[optind], 0);
+ if (!ctx->filesystem_name) {
+ com_err(ctx->program_name, 0, _("Unable to resolve '%s'"),
+ argv[optind]);
+ fatal_error(ctx, 0);
+ }
+ if (extended_opts)
+ parse_extended_opts(ctx, extended_opts);
+
+ if (flush) {
+ fd = open(ctx->filesystem_name, O_RDONLY, 0);
+ if (fd < 0) {
+ com_err("open", errno,
+ _("while opening %s for flushing"),
+ ctx->filesystem_name);
+ fatal_error(ctx, 0);
+ }
+ if ((retval = ext2fs_sync_device(fd, 1))) {
+ com_err("ext2fs_sync_device", retval,
+ _("while trying to flush %s"),
+ ctx->filesystem_name);
+ fatal_error(ctx, 0);
+ }
+ close(fd);
+ }
+#ifdef ENABLE_SWAPFS
+ if (swapfs) {
+ if (cflag || bad_blocks_file) {
+ fprintf(stderr, _("Incompatible options not "
+ "allowed when byte-swapping.\n"));
+ exit(FSCK_USAGE);
+ }
+ }
+#endif
+ if (cflag && bad_blocks_file) {
+ fprintf(stderr, _("The -c and the -l/-L options may "
+ "not be both used at the same time.\n"));
+ exit(FSCK_USAGE);
+ }
+#ifdef HAVE_SIGNAL_H
+ /*
+ * Set up signal action
+ */
+ memset(&sa, 0, sizeof(struct sigaction));
+ sa.sa_handler = signal_cancel;
+ sigaction(SIGINT, &sa, 0);
+ sigaction(SIGTERM, &sa, 0);
+#ifdef SA_RESTART
+ sa.sa_flags = SA_RESTART;
+#endif
+ e2fsck_global_ctx = ctx;
+ sa.sa_handler = signal_progress_on;
+ sigaction(SIGUSR1, &sa, 0);
+ sa.sa_handler = signal_progress_off;
+ sigaction(SIGUSR2, &sa, 0);
+#endif
+
+ /* Update our PATH to include /sbin if we need to run badblocks */
+ if (cflag) {
+ char *oldpath = getenv("PATH");
+ if (oldpath) {
+ char *newpath;
+
+ newpath = (char *) malloc(sizeof (PATH_SET) + 1 +
+ strlen (oldpath));
+ if (!newpath)
+ fatal_error(ctx, "Couldn't malloc() newpath");
+ strcpy (newpath, PATH_SET);
+ strcat (newpath, ":");
+ strcat (newpath, oldpath);
+ putenv (newpath);
+ } else
+ putenv (PATH_SET);
+ }
+#ifdef __CONFIG_JBD_DEBUG__E2FS
+ if (getenv("E2FSCK_JBD_DEBUG"))
+ journal_enable_debug = atoi(getenv("E2FSCK_JBD_DEBUG"));
+#endif
+ return 0;
+}
+
+static const char *my_ver_string = E2FSPROGS_VERSION;
+static const char *my_ver_date = E2FSPROGS_DATE;
+
+int e2fsck_main (int argc, char *argv[])
+{
+ errcode_t retval = 0;
+ int exit_value = FSCK_OK;
+ ext2_filsys fs = 0;
+ io_manager io_ptr;
+ struct ext2_super_block *sb;
+ const char *lib_ver_date;
+ int my_ver, lib_ver;
+ e2fsck_t ctx;
+ struct problem_context pctx;
+ int flags, run_result;
+
+ clear_problem_context(&pctx);
+#ifdef MTRACE
+ mtrace();
+#endif
+#ifdef MCHECK
+ mcheck(0);
+#endif
+#ifdef ENABLE_NLS
+ setlocale(LC_MESSAGES, "");
+ setlocale(LC_CTYPE, "");
+ bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
+ textdomain(NLS_CAT_NAME);
+#endif
+ my_ver = ext2fs_parse_version_string(my_ver_string);
+ lib_ver = ext2fs_get_library_version(0, &lib_ver_date);
+ if (my_ver > lib_ver) {
+ fprintf( stderr, _("Error: ext2fs library version "
+ "out of date!\n"));
+ show_version_only++;
+ }
+
+ retval = PRS(argc, argv, &ctx);
+ if (retval) {
+ com_err("e2fsck", retval,
+ _("while trying to initialize program"));
+ exit(FSCK_ERROR);
+ }
+ reserve_stdio_fds();
+
+#ifdef RESOURCE_TRACK
+ init_resource_track(&ctx->global_rtrack);
+#endif
+
+ if (!(ctx->options & E2F_OPT_PREEN) || show_version_only)
+ fprintf(stderr, "e2fsck %s (%s)\n", my_ver_string,
+ my_ver_date);
+
+ if (show_version_only) {
+ fprintf(stderr, _("\tUsing %s, %s\n"),
+ error_message(EXT2_ET_BASE), lib_ver_date);
+ exit(FSCK_OK);
+ }
+
+ check_mount(ctx);
+
+ if (!(ctx->options & E2F_OPT_PREEN) &&
+ !(ctx->options & E2F_OPT_NO) &&
+ !(ctx->options & E2F_OPT_YES)) {
+ if (!ctx->interactive)
+ fatal_error(ctx,
+ _("need terminal for interactive repairs"));
+ }
+ ctx->superblock = ctx->use_superblock;
+restart:
+#ifdef CONFIG_TESTIO_DEBUG
+ io_ptr = test_io_manager;
+ test_io_backing_manager = unix_io_manager;
+#else
+ io_ptr = unix_io_manager;
+#endif
+ flags = 0;
+ if ((ctx->options & E2F_OPT_READONLY) == 0)
+ flags |= EXT2_FLAG_RW;
+
+ if (ctx->superblock && ctx->blocksize) {
+ retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
+ flags, ctx->superblock, ctx->blocksize,
+ io_ptr, &fs);
+ } else if (ctx->superblock) {
+ int blocksize;
+ for (blocksize = EXT2_MIN_BLOCK_SIZE;
+ blocksize <= EXT2_MAX_BLOCK_SIZE; blocksize *= 2) {
+ retval = ext2fs_open2(ctx->filesystem_name,
+ ctx->io_options, flags,
+ ctx->superblock, blocksize,
+ io_ptr, &fs);
+ if (!retval)
+ break;
+ }
+ } else
+ retval = ext2fs_open2(ctx->filesystem_name, ctx->io_options,
+ flags, 0, 0, io_ptr, &fs);
+ if (!ctx->superblock && !(ctx->options & E2F_OPT_PREEN) &&
+ !(ctx->flags & E2F_FLAG_SB_SPECIFIED) &&
+ ((retval == EXT2_ET_BAD_MAGIC) ||
+ ((retval == 0) && ext2fs_check_desc(fs)))) {
+ if (!fs || (fs->group_desc_count > 1)) {
+ printf(_("%s trying backup blocks...\n"),
+ retval ? _("Couldn't find ext2 superblock,") :
+ _("Group descriptors look bad..."));
+ get_backup_sb(ctx, fs, ctx->filesystem_name, io_ptr);
+ if (fs)
+ ext2fs_close(fs);
+ goto restart;
+ }
+ }
+ if (retval) {
+ com_err(ctx->program_name, retval, _("while trying to open %s"),
+ ctx->filesystem_name);
+ if (retval == EXT2_ET_REV_TOO_HIGH) {
+ printf(_("The filesystem revision is apparently "
+ "too high for this version of e2fsck.\n"
+ "(Or the filesystem superblock "
+ "is corrupt)\n\n"));
+ fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
+ } else if (retval == EXT2_ET_SHORT_READ)
+ printf(_("Could this be a zero-length partition?\n"));
+ else if ((retval == EPERM) || (retval == EACCES))
+ printf(_("You must have %s access to the "
+ "filesystem or be root\n"),
+ (ctx->options & E2F_OPT_READONLY) ?
+ "r/o" : "r/w");
+ else if (retval == ENXIO)
+ printf(_("Possibly non-existent or swap device?\n"));
+#ifdef EROFS
+ else if (retval == EROFS)
+ printf(_("Disk write-protected; use the -n option "
+ "to do a read-only\n"
+ "check of the device.\n"));
+#endif
+ else
+ fix_problem(ctx, PR_0_SB_CORRUPT, &pctx);
+ fatal_error(ctx, 0);
+ }
+ ctx->fs = fs;
+ fs->priv_data = ctx;
+ sb = fs->super;
+ if (sb->s_rev_level > E2FSCK_CURRENT_REV) {
+ com_err(ctx->program_name, EXT2_ET_REV_TOO_HIGH,
+ _("while trying to open %s"),
+ ctx->filesystem_name);
+ get_newer:
+ fatal_error(ctx, _("Get a newer version of e2fsck!"));
+ }
+
+ /*
+ * Set the device name, which is used whenever we print error
+ * or informational messages to the user.
+ */
+ if (ctx->device_name == 0 &&
+ (sb->s_volume_name[0] != 0)) {
+ ctx->device_name = string_copy(ctx, sb->s_volume_name,
+ sizeof(sb->s_volume_name));
+ }
+ if (ctx->device_name == 0)
+ ctx->device_name = ctx->filesystem_name;
+
+ /*
+ * Make sure the ext3 superblock fields are consistent.
+ */
+ retval = e2fsck_check_ext3_journal(ctx);
+ if (retval) {
+ com_err(ctx->program_name, retval,
+ _("while checking ext3 journal for %s"),
+ ctx->device_name);
+ fatal_error(ctx, 0);
+ }
+
+ /*
+ * Check to see if we need to do ext3-style recovery. If so,
+ * do it, and then restart the fsck.
+ */
+ if (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_RECOVER) {
+ if (ctx->options & E2F_OPT_READONLY) {
+ printf(_("Warning: skipping journal recovery "
+ "because doing a read-only filesystem "
+ "check.\n"));
+ io_channel_flush(ctx->fs->io);
+ } else {
+ if (ctx->flags & E2F_FLAG_RESTARTED) {
+ /*
+ * Whoops, we attempted to run the
+ * journal twice. This should never
+ * happen, unless the hardware or
+ * device driver is being bogus.
+ */
+ com_err(ctx->program_name, 0,
+ _("unable to set superblock flags on %s\n"), ctx->device_name);
+ fatal_error(ctx, 0);
+ }
+ retval = e2fsck_run_ext3_journal(ctx);
+ if (retval) {
+ com_err(ctx->program_name, retval,
+ _("while recovering ext3 journal of %s"),
+ ctx->device_name);
+ fatal_error(ctx, 0);
+ }
+ ext2fs_close(ctx->fs);
+ ctx->fs = 0;
+ ctx->flags |= E2F_FLAG_RESTARTED;
+ goto restart;
+ }
+ }
+
+ /*
+ * Check for compatibility with the feature sets. We need to
+ * be more stringent than ext2fs_open().
+ */
+ if ((sb->s_feature_compat & ~EXT2_LIB_FEATURE_COMPAT_SUPP) ||
+ (sb->s_feature_incompat & ~EXT2_LIB_FEATURE_INCOMPAT_SUPP)) {
+ com_err(ctx->program_name, EXT2_ET_UNSUPP_FEATURE,
+ "(%s)", ctx->device_name);
+ goto get_newer;
+ }
+ if (sb->s_feature_ro_compat & ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP) {
+ com_err(ctx->program_name, EXT2_ET_RO_UNSUPP_FEATURE,
+ "(%s)", ctx->device_name);
+ goto get_newer;
+ }
+#ifdef ENABLE_COMPRESSION
+ if (sb->s_feature_incompat & EXT2_FEATURE_INCOMPAT_COMPRESSION)
+ com_err(ctx->program_name, 0,
+ _("Warning: compression support is experimental.\n"));
+#endif
+#ifndef ENABLE_HTREE
+ if (sb->s_feature_compat & EXT2_FEATURE_COMPAT_DIR_INDEX) {
+ com_err(ctx->program_name, 0,
+ _("E2fsck not compiled with HTREE support,\n\t"
+ "but filesystem %s has HTREE directories.\n"),
+ ctx->device_name);
+ goto get_newer;
+ }
+#endif
+
+ /*
+ * 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 (ctx->superblock &&
+ !(ctx->options & E2F_OPT_READONLY))
+ ext2fs_mark_super_dirty(fs);
+
+ /*
+ * We only update the master superblock because (a) paranoia;
+ * we don't want to corrupt the backup superblocks, and (b) we
+ * don't need to update the mount count and last checked
+ * fields in the backup superblock (the kernel doesn't
+ * update the backup superblocks anyway).
+ */
+ fs->flags |= EXT2_FLAG_MASTER_SB_ONLY;
+
+ ehandler_init(fs->io);
+
+ if (ctx->superblock)
+ set_latch_flags(PR_LATCH_RELOC, PRL_LATCHED, 0);
+ ext2fs_mark_valid(fs);
+ check_super_block(ctx);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ fatal_error(ctx, 0);
+ check_if_skip(ctx);
+ if (bad_blocks_file)
+ read_bad_blocks_file(ctx, bad_blocks_file, replace_bad_blocks);
+ else if (cflag)
+ read_bad_blocks_file(ctx, 0, !keep_bad_blocks); /* Test disk */
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ fatal_error(ctx, 0);
+#ifdef ENABLE_SWAPFS
+ if (normalize_swapfs) {
+ if ((fs->flags & EXT2_FLAG_SWAP_BYTES) ==
+ ext2fs_native_flag()) {
+ fprintf(stderr, _("%s: Filesystem byte order "
+ "already normalized.\n"), ctx->device_name);
+ fatal_error(ctx, 0);
+ }
+ }
+ if (swapfs) {
+ swap_filesys(ctx);
+ if (ctx->flags & E2F_FLAG_SIGNAL_MASK)
+ fatal_error(ctx, 0);
+ }
+#endif
+
+ /*
+ * Mark the system as valid, 'til proven otherwise
+ */
+ ext2fs_mark_valid(fs);
+
+ retval = ext2fs_read_bb_inode(fs, &fs->badblocks);
+ if (retval) {
+ com_err(ctx->program_name, retval,
+ _("while reading bad blocks inode"));
+ preenhalt(ctx);
+ printf(_("This doesn't bode well,"
+ " but we'll try to go on...\n"));
+ }
+
+ run_result = e2fsck_run(ctx);
+ e2fsck_clear_progbar(ctx);
+ if (run_result == E2F_FLAG_RESTART) {
+ printf(_("Restarting e2fsck from the beginning...\n"));
+ retval = e2fsck_reset_context(ctx);
+ if (retval) {
+ com_err(ctx->program_name, retval,
+ _("while resetting context"));
+ fatal_error(ctx, 0);
+ }
+ ext2fs_close(fs);
+ goto restart;
+ }
+ if (run_result & E2F_FLAG_CANCEL) {
+ printf(_("%s: e2fsck canceled.\n"), ctx->device_name ?
+ ctx->device_name : ctx->filesystem_name);
+ exit_value |= FSCK_CANCELED;
+ }
+ if (run_result & E2F_FLAG_ABORT)
+ fatal_error(ctx, _("aborted"));
+
+#ifdef MTRACE
+ mtrace_print("Cleanup");
+#endif
+ if (ext2fs_test_changed(fs)) {
+ exit_value |= FSCK_NONDESTRUCT;
+ if (!(ctx->options & E2F_OPT_PREEN))
+ printf(_("\n%s: ***** FILE SYSTEM WAS MODIFIED *****\n"),
+ ctx->device_name);
+ if (ctx->mount_flags & EXT2_MF_ISROOT) {
+ printf(_("%s: ***** REBOOT LINUX *****\n"),
+ ctx->device_name);
+ exit_value |= FSCK_REBOOT;
+ }
+ }
+ if (!ext2fs_test_valid(fs)) {
+ printf(_("\n%s: ********** WARNING: Filesystem still has "
+ "errors **********\n\n"), ctx->device_name);
+ exit_value |= FSCK_UNCORRECTED;
+ exit_value &= ~FSCK_NONDESTRUCT;
+ }
+ if (exit_value & FSCK_CANCELED)
+ exit_value &= ~FSCK_NONDESTRUCT;
+ else {
+ show_stats(ctx);
+ if (!(ctx->options & E2F_OPT_READONLY)) {
+ if (ext2fs_test_valid(fs)) {
+ if (!(sb->s_state & EXT2_VALID_FS))
+ exit_value |= FSCK_NONDESTRUCT;
+ sb->s_state = EXT2_VALID_FS;
+ } else
+ sb->s_state &= ~EXT2_VALID_FS;
+ sb->s_mnt_count = 0;
+ sb->s_lastcheck = time(NULL);
+ ext2fs_mark_super_dirty(fs);
+ }
+ }
+
+ e2fsck_write_bitmaps(ctx);
+
+ ext2fs_close(fs);
+ ctx->fs = NULL;
+ free(ctx->filesystem_name);
+ free(ctx->journal_name);
+ e2fsck_free_context(ctx);
+
+#ifdef RESOURCE_TRACK
+ if (ctx->options & E2F_OPT_TIME)
+ print_resource_track(NULL, &ctx->global_rtrack);
+#endif
+
+ return exit_value;
+}