diff options
Diffstat (limited to 'e2fsprogs/old_e2fsprogs/fsck.c')
| -rw-r--r-- | e2fsprogs/old_e2fsprogs/fsck.c | 1371 |
1 files changed, 0 insertions, 1371 deletions
diff --git a/e2fsprogs/old_e2fsprogs/fsck.c b/e2fsprogs/old_e2fsprogs/fsck.c deleted file mode 100644 index 87874ce71..000000000 --- a/e2fsprogs/old_e2fsprogs/fsck.c +++ /dev/null @@ -1,1371 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * pfsck --- A generic, parallelizing front-end for the fsck program. - * It will automatically try to run fsck programs in parallel if the - * devices are on separate spindles. It is based on the same ideas as - * the generic front end for fsck by David Engel and Fred van Kempen, - * but it has been completely rewritten from scratch to support - * parallel execution. - * - * Written by Theodore Ts'o, <tytso@mit.edu> - * - * Miquel van Smoorenburg (miquels@drinkel.ow.org) 20-Oct-1994: - * o Changed -t fstype to behave like with mount when -A (all file - * systems) or -M (like mount) is specified. - * o fsck looks if it can find the fsck.type program to decide - * if it should ignore the fs type. This way more fsck programs - * can be added without changing this front-end. - * o -R flag skip root file system. - * - * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, - * 2001, 2002, 2003, 2004, 2005 by Theodore Ts'o. - * - * Licensed under GPLv2, see file LICENSE in this source tree. - */ - -#include <sys/types.h> -#include <sys/wait.h> -#include <sys/stat.h> -#include <limits.h> -#include <stdio.h> -#include <ctype.h> -#include <string.h> -#include <time.h> -#include <stdlib.h> -#include <errno.h> -#include <paths.h> -#include <unistd.h> -#include <errno.h> -#include <signal.h> - -#include "fsck.h" -#include "blkid/blkid.h" - -#include "e2fsbb.h" - -#include "libbb.h" - -#ifndef _PATH_MNTTAB -#define _PATH_MNTTAB "/etc/fstab" -#endif - -/* - * fsck.h - */ - -#ifndef DEFAULT_FSTYPE -#define DEFAULT_FSTYPE "ext2" -#endif - -#define MAX_DEVICES 32 -#define MAX_ARGS 32 - -/* - * Internal structure for mount tabel entries. - */ - -struct fs_info { - char *device; - char *mountpt; - char *type; - char *opts; - int freq; - int passno; - int flags; - struct fs_info *next; -}; - -#define FLAG_DONE 1 -#define FLAG_PROGRESS 2 - -/* - * Structure to allow exit codes to be stored - */ -struct fsck_instance { - int pid; - int flags; - int exit_status; - time_t start_time; - char * prog; - char * type; - char * device; - char * base_device; - struct fsck_instance *next; -}; - -/* - * base_device.c - * - * Return the "base device" given a particular device; this is used to - * assure that we only fsck one partition on a particular drive at any - * one time. Otherwise, the disk heads will be seeking all over the - * place. If the base device cannot be determined, return NULL. - * - * The base_device() function returns an allocated string which must - * be freed. - * - */ - - -#ifdef CONFIG_FEATURE_DEVFS -/* - * Required for the uber-silly devfs /dev/ide/host1/bus2/target3/lun3 - * pathames. - */ -static const char *const devfs_hier[] = { - "host", "bus", "target", "lun", 0 -}; -#endif - -static char *base_device(const char *device) -{ - char *str, *cp; -#ifdef CONFIG_FEATURE_DEVFS - const char *const *hier; - const char *disk; - int len; -#endif - - cp = str = xstrdup(device); - - /* Skip over /dev/; if it's not present, give up. */ - if (strncmp(cp, "/dev/", 5) != 0) - goto errout; - cp += 5; - - /* - * For md devices, we treat them all as if they were all - * on one disk, since we don't know how to parallelize them. - */ - if (cp[0] == 'm' && cp[1] == 'd') { - *(cp+2) = 0; - return str; - } - - /* Handle DAC 960 devices */ - if (strncmp(cp, "rd/", 3) == 0) { - cp += 3; - if (cp[0] != 'c' || cp[2] != 'd' || - !isdigit(cp[1]) || !isdigit(cp[3])) - goto errout; - *(cp+4) = 0; - return str; - } - - /* Now let's handle /dev/hd* and /dev/sd* devices.... */ - if ((cp[0] == 'h' || cp[0] == 's') && (cp[1] == 'd')) { - cp += 2; - /* If there's a single number after /dev/hd, skip it */ - if (isdigit(*cp)) - cp++; - /* What follows must be an alpha char, or give up */ - if (!isalpha(*cp)) - goto errout; - *(cp + 1) = 0; - return str; - } - -#ifdef CONFIG_FEATURE_DEVFS - /* Now let's handle devfs (ugh) names */ - len = 0; - if (strncmp(cp, "ide/", 4) == 0) - len = 4; - if (strncmp(cp, "scsi/", 5) == 0) - len = 5; - if (len) { - cp += len; - /* - * Now we proceed down the expected devfs hierarchy. - * i.e., .../host1/bus2/target3/lun4/... - * If we don't find the expected token, followed by - * some number of digits at each level, abort. - */ - for (hier = devfs_hier; *hier; hier++) { - len = strlen(*hier); - if (strncmp(cp, *hier, len) != 0) - goto errout; - cp += len; - while (*cp != '/' && *cp != 0) { - if (!isdigit(*cp)) - goto errout; - cp++; - } - cp++; - } - *(cp - 1) = 0; - return str; - } - - /* Now handle devfs /dev/disc or /dev/disk names */ - disk = 0; - if (strncmp(cp, "discs/", 6) == 0) - disk = "disc"; - else if (strncmp(cp, "disks/", 6) == 0) - disk = "disk"; - if (disk) { - cp += 6; - if (strncmp(cp, disk, 4) != 0) - goto errout; - cp += 4; - while (*cp != '/' && *cp != 0) { - if (!isdigit(*cp)) - goto errout; - cp++; - } - *cp = 0; - return str; - } -#endif - -errout: - free(str); - return NULL; -} - - -static const char *const ignored_types[] = { - "ignore", - "iso9660", - "nfs", - "proc", - "sw", - "swap", - "tmpfs", - "devpts", - NULL -}; - -static const char *const really_wanted[] = { - "minix", - "ext2", - "ext3", - "jfs", - "reiserfs", - "xiafs", - "xfs", - NULL -}; - -#define BASE_MD "/dev/md" - -/* - * Global variables for options - */ -static char *devices[MAX_DEVICES]; -static char *args[MAX_ARGS]; -static int num_devices, num_args; - -static int verbose; -static int doall; -static int noexecute; -static int serialize; -static int skip_root; -static int like_mount; -static int notitle; -static int parallel_root; -static int progress; -static int progress_fd; -static int force_all_parallel; -static int num_running; -static int max_running; -static volatile int cancel_requested; -static int kill_sent; -static char *fstype; -static struct fs_info *filesys_info, *filesys_last; -static struct fsck_instance *instance_list; -static char *fsck_path; -static blkid_cache cache; - -static char *string_copy(const char *s) -{ - char *ret; - - if (!s) - return 0; - ret = xstrdup(s); - return ret; -} - -static int string_to_int(const char *s) -{ - long l; - char *p; - - l = strtol(s, &p, 0); - if (*p || l == LONG_MIN || l == LONG_MAX || l < 0 || l > INT_MAX) - return -1; - else - return (int) l; -} - -static char *skip_over_blank(char *cp) -{ - while (*cp && isspace(*cp)) - cp++; - return cp; -} - -static char *skip_over_word(char *cp) -{ - while (*cp && !isspace(*cp)) - cp++; - return cp; -} - -static void strip_line(char *line) -{ - char *p; - - while (*line) { - p = line + strlen(line) - 1; - if ((*p == '\n') || (*p == '\r')) - *p = 0; - else - break; - } -} - -static char *parse_word(char **buf) -{ - char *word, *next; - - word = *buf; - if (*word == 0) - return 0; - - word = skip_over_blank(word); - next = skip_over_word(word); - if (*next) - *next++ = 0; - *buf = next; - return word; -} - -static void parse_escape(char *word) -{ - char *q, c; - const char *p; - - if (!word) - return; - - strcpy_and_process_escape_sequences(word, word); -} - -static void free_instance(struct fsck_instance *i) -{ - free(i->prog); - free(i->device); - free(i->base_device); - free(i); -} - -static struct fs_info *create_fs_device(const char *device, const char *mntpnt, - const char *type, const char *opts, - int freq, int passno) -{ - struct fs_info *fs; - - fs = xmalloc(sizeof(struct fs_info)); - - fs->device = string_copy(device); - fs->mountpt = string_copy(mntpnt); - fs->type = string_copy(type); - fs->opts = string_copy(opts ? opts : ""); - fs->freq = freq; - fs->passno = passno; - fs->flags = 0; - fs->next = NULL; - - if (!filesys_info) - filesys_info = fs; - else - filesys_last->next = fs; - filesys_last = fs; - - return fs; -} - - - -static int parse_fstab_line(char *line, struct fs_info **ret_fs) -{ - char *dev, *device, *mntpnt, *type, *opts, *freq, *passno, *cp; - struct fs_info *fs; - - *ret_fs = 0; - strip_line(line); - if ((cp = strchr(line, '#'))) - *cp = 0; /* Ignore everything after the comment char */ - cp = line; - - device = parse_word(&cp); - mntpnt = parse_word(&cp); - type = parse_word(&cp); - opts = parse_word(&cp); - freq = parse_word(&cp); - passno = parse_word(&cp); - - if (!device) - return 0; /* Allow blank lines */ - - if (!mntpnt || !type) - return -1; - - parse_escape(device); - parse_escape(mntpnt); - parse_escape(type); - parse_escape(opts); - parse_escape(freq); - parse_escape(passno); - - dev = blkid_get_devname(cache, device, NULL); - if (dev) - device = dev; - - if (strchr(type, ',')) - type = 0; - - fs = create_fs_device(device, mntpnt, type ? type : "auto", opts, - freq ? atoi(freq) : -1, - passno ? atoi(passno) : -1); - free(dev); - - if (!fs) - return -1; - *ret_fs = fs; - return 0; -} - -static void interpret_type(struct fs_info *fs) -{ - char *t; - - if (strcmp(fs->type, "auto") != 0) - return; - t = blkid_get_tag_value(cache, "TYPE", fs->device); - if (t) { - free(fs->type); - fs->type = t; - } -} - -/* - * Load the filesystem database from /etc/fstab - */ -static void load_fs_info(const char *filename) -{ - FILE *f; - char buf[1024]; - int lineno = 0; - int old_fstab = 1; - struct fs_info *fs; - - if ((f = fopen_or_warn(filename, "r")) == NULL) { - return; - } - while (!feof(f)) { - lineno++; - if (!fgets(buf, sizeof(buf), f)) - break; - buf[sizeof(buf)-1] = 0; - if (parse_fstab_line(buf, &fs) < 0) { - bb_error_msg("WARNING: bad format " - "on line %d of %s\n", lineno, filename); - continue; - } - if (!fs) - continue; - if (fs->passno < 0) - fs->passno = 0; - else - old_fstab = 0; - } - - fclose(f); - - if (old_fstab) { - fputs("\007\007\007" - "WARNING: Your /etc/fstab does not contain the fsck passno\n" - " field. I will kludge around things for you, but you\n" - " should fix your /etc/fstab file as soon as you can.\n\n", stderr); - - for (fs = filesys_info; fs; fs = fs->next) { - fs->passno = 1; - } - } -} - -/* Lookup filesys in /etc/fstab and return the corresponding entry. */ -static struct fs_info *lookup(char *filesys) -{ - struct fs_info *fs; - - /* No filesys name given. */ - if (filesys == NULL) - return NULL; - - for (fs = filesys_info; fs; fs = fs->next) { - if (!strcmp(filesys, fs->device) || - (fs->mountpt && !strcmp(filesys, fs->mountpt))) - break; - } - - return fs; -} - -/* Find fsck program for a given fs type. */ -static char *find_fsck(char *type) -{ - char *s; - const char *tpl; - char *p = string_copy(fsck_path); - struct stat st; - - /* Are we looking for a program or just a type? */ - tpl = (strncmp(type, "fsck.", 5) ? "%s/fsck.%s" : "%s/%s"); - - for (s = strtok(p, ":"); s; s = strtok(NULL, ":")) { - s = xasprintf(tpl, s, type); - if (stat(s, &st) == 0) break; - free(s); - } - free(p); - return s; -} - -static int progress_active(void) -{ - struct fsck_instance *inst; - - for (inst = instance_list; inst; inst = inst->next) { - if (inst->flags & FLAG_DONE) - continue; - if (inst->flags & FLAG_PROGRESS) - return 1; - } - return 0; -} - -/* - * Execute a particular fsck program, and link it into the list of - * child processes we are waiting for. - */ -static int execute(const char *type, const char *device, const char *mntpt, - int interactive) -{ - char *s, *argv[80]; - char *prog; - int argc, i; - struct fsck_instance *inst, *p; - pid_t pid; - - inst = xzalloc(sizeof(struct fsck_instance)); - - prog = xasprintf("fsck.%s", type); - argv[0] = prog; - argc = 1; - - for (i=0; i <num_args; i++) - argv[argc++] = string_copy(args[i]); - - if (progress && !progress_active()) { - if ((strcmp(type, "ext2") == 0) || - (strcmp(type, "ext3") == 0)) { - char tmp[80]; - snprintf(tmp, 80, "-C%d", progress_fd); - argv[argc++] = string_copy(tmp); - inst->flags |= FLAG_PROGRESS; - } - } - - argv[argc++] = string_copy(device); - argv[argc] = 0; - - s = find_fsck(prog); - if (s == NULL) { - bb_error_msg("%s: not found", prog); - return ENOENT; - } - - if (verbose || noexecute) { - printf("[%s (%d) -- %s] ", s, num_running, - mntpt ? mntpt : device); - for (i=0; i < argc; i++) - printf("%s ", argv[i]); - bb_putchar('\n'); - } - - /* Fork and execute the correct program. */ - if (noexecute) - pid = -1; - else if ((pid = fork()) < 0) { - perror("vfork"+1); - return errno; - } else if (pid == 0) { - if (!interactive) - close(0); - (void) execv(s, argv); - bb_simple_perror_msg_and_die(argv[0]); - } - - for (i = 1; i < argc; i++) - free(argv[i]); - - free(s); - inst->pid = pid; - inst->prog = prog; - inst->type = string_copy(type); - inst->device = string_copy(device); - inst->base_device = base_device(device); - inst->start_time = time(0); - inst->next = NULL; - - /* - * Find the end of the list, so we add the instance on at the end. - */ - for (p = instance_list; p && p->next; p = p->next); - - if (p) - p->next = inst; - else - instance_list = inst; - - return 0; -} - -/* - * Send a signal to all outstanding fsck child processes - */ -static int kill_all(int signum) -{ - struct fsck_instance *inst; - int n = 0; - - for (inst = instance_list; inst; inst = inst->next) { - if (inst->flags & FLAG_DONE) - continue; - kill(inst->pid, signum); - n++; - } - return n; -} - -/* - * Wait for one child process to exit; when it does, unlink it from - * the list of executing child processes, and return it. - */ -static struct fsck_instance *wait_one(int flags) -{ - int status; - int sig; - struct fsck_instance *inst, *inst2, *prev; - pid_t pid; - - if (!instance_list) - return NULL; - - if (noexecute) { - inst = instance_list; - prev = 0; -#ifdef RANDOM_DEBUG - while (inst->next && (random() & 1)) { - prev = inst; - inst = inst->next; - } -#endif - inst->exit_status = 0; - goto ret_inst; - } - - /* - * gcc -Wall fails saving throw against stupidity - * (inst and prev are thought to be uninitialized variables) - */ - inst = prev = NULL; - - do { - pid = waitpid(-1, &status, flags); - if (cancel_requested && !kill_sent) { - kill_all(SIGTERM); - kill_sent++; - } - if ((pid == 0) && (flags & WNOHANG)) - return NULL; - if (pid < 0) { - if ((errno == EINTR) || (errno == EAGAIN)) - continue; - if (errno == ECHILD) { - bb_error_msg("wait: no more child process?!?"); - return NULL; - } - perror("wait"); - continue; - } - for (prev = 0, inst = instance_list; - inst; - prev = inst, inst = inst->next) { - if (inst->pid == pid) - break; - } - } while (!inst); - - if (WIFEXITED(status)) - status = WEXITSTATUS(status); - else if (WIFSIGNALED(status)) { - sig = WTERMSIG(status); - if (sig == SIGINT) { - status = EXIT_UNCORRECTED; - } else { - printf("Warning... %s for device %s exited " - "with signal %d.\n", - inst->prog, inst->device, sig); - status = EXIT_ERROR; - } - } else { - printf("%s %s: status is %x, should never happen.\n", - inst->prog, inst->device, status); - status = EXIT_ERROR; - } - inst->exit_status = status; - if (progress && (inst->flags & FLAG_PROGRESS) && - !progress_active()) { - for (inst2 = instance_list; inst2; inst2 = inst2->next) { - if (inst2->flags & FLAG_DONE) - continue; - if (strcmp(inst2->type, "ext2") && - strcmp(inst2->type, "ext3")) - continue; - /* - * If we've just started the fsck, wait a tiny - * bit before sending the kill, to give it - * time to set up the signal handler - */ - if (inst2->start_time < time(0)+2) { - if (fork() == 0) { - sleep(1); - kill(inst2->pid, SIGUSR1); - exit(0); - } - } else - kill(inst2->pid, SIGUSR1); - inst2->flags |= FLAG_PROGRESS; - break; - } - } -ret_inst: - if (prev) - prev->next = inst->next; - else - instance_list = inst->next; - if (verbose > 1) - printf("Finished with %s (exit status %d)\n", - inst->device, inst->exit_status); - num_running--; - return inst; -} - -#define FLAG_WAIT_ALL 0 -#define FLAG_WAIT_ATLEAST_ONE 1 -/* - * Wait until all executing child processes have exited; return the - * logical OR of all of their exit code values. - */ -static int wait_many(int flags) -{ - struct fsck_instance *inst; - int global_status = 0; - int wait_flags = 0; - - while ((inst = wait_one(wait_flags))) { - global_status |= inst->exit_status; - free_instance(inst); -#ifdef RANDOM_DEBUG - if (noexecute && (flags & WNOHANG) && !(random() % 3)) - break; -#endif - if (flags & FLAG_WAIT_ATLEAST_ONE) - wait_flags = WNOHANG; - } - return global_status; -} - -/* - * Run the fsck program on a particular device - * - * If the type is specified using -t, and it isn't prefixed with "no" - * (as in "noext2") and only one filesystem type is specified, then - * use that type regardless of what is specified in /etc/fstab. - * - * If the type isn't specified by the user, then use either the type - * specified in /etc/fstab, or DEFAULT_FSTYPE. - */ -static void fsck_device(struct fs_info *fs, int interactive) -{ - const char *type; - int retval; - - interpret_type(fs); - - if (strcmp(fs->type, "auto") != 0) - type = fs->type; - else if (fstype && strncmp(fstype, "no", 2) && - strncmp(fstype, "opts=", 5) && strncmp(fstype, "loop", 4) && - !strchr(fstype, ',')) - type = fstype; - else - type = DEFAULT_FSTYPE; - - num_running++; - retval = execute(type, fs->device, fs->mountpt, interactive); - if (retval) { - bb_error_msg("error %d while executing fsck.%s for %s", - retval, type, fs->device); - num_running--; - } -} - - -/* - * Deal with the fsck -t argument. - */ -struct fs_type_compile { - char **list; - int *type; - int negate; -} fs_type_compiled; - -#define FS_TYPE_NORMAL 0 -#define FS_TYPE_OPT 1 -#define FS_TYPE_NEGOPT 2 - -static const char fs_type_syntax_error[] = -"Either all or none of the filesystem types passed to -t must be prefixed\n" - "with 'no' or '!'."; - -static void compile_fs_type(char *fs_type, struct fs_type_compile *cmp) -{ - char *cp, *list, *s; - int num = 2; - int negate, first_negate = 1; - - if (fs_type) { - for (cp=fs_type; *cp; cp++) { - if (*cp == ',') - num++; - } - } - - cmp->list = xzalloc(num * sizeof(char *)); - cmp->type = xzalloc(num * sizeof(int)); - cmp->negate = 0; - - if (!fs_type) - return; - - list = string_copy(fs_type); - num = 0; - s = strtok(list, ","); - while (s) { - negate = 0; - if (strncmp(s, "no", 2) == 0) { - s += 2; - negate = 1; - } else if (*s == '!') { - s++; - negate = 1; - } - if (strcmp(s, "loop") == 0) - /* loop is really short-hand for opts=loop */ - goto loop_special_case; - else if (strncmp(s, "opts=", 5) == 0) { - s += 5; - loop_special_case: - cmp->type[num] = negate ? FS_TYPE_NEGOPT : FS_TYPE_OPT; - } else { - if (first_negate) { - cmp->negate = negate; - first_negate = 0; - } - if ((negate && !cmp->negate) || - (!negate && cmp->negate)) { - bb_error_msg_and_die("%s", fs_type_syntax_error); - } - } - cmp->list[num++] = string_copy(s); - s = strtok(NULL, ","); - } - free(list); -} - -/* - * This function returns true if a particular option appears in a - * comma-delimited options list - */ -static int opt_in_list(char *opt, char *optlist) -{ - char *list, *s; - - if (!optlist) - return 0; - list = string_copy(optlist); - - s = strtok(list, ","); - while (s) { - if (strcmp(s, opt) == 0) { - free(list); - return 1; - } - s = strtok(NULL, ","); - } - free(list); - return 0; -} - -/* See if the filesystem matches the criteria given by the -t option */ -static int fs_match(struct fs_info *fs, struct fs_type_compile *cmp) -{ - int n, ret = 0, checked_type = 0; - char *cp; - - if (cmp->list == 0 || cmp->list[0] == 0) - return 1; - - for (n=0; (cp = cmp->list[n]); n++) { - switch (cmp->type[n]) { - case FS_TYPE_NORMAL: - checked_type++; - if (strcmp(cp, fs->type) == 0) { - ret = 1; - } - break; - case FS_TYPE_NEGOPT: - if (opt_in_list(cp, fs->opts)) - return 0; - break; - case FS_TYPE_OPT: - if (!opt_in_list(cp, fs->opts)) - return 0; - break; - } - } - if (checked_type == 0) - return 1; - return (cmp->negate ? !ret : ret); -} - -/* Check if we should ignore this filesystem. */ -static int ignore(struct fs_info *fs) -{ - int wanted; - char *s; - - /* - * If the pass number is 0, ignore it. - */ - if (fs->passno == 0) - return 1; - - interpret_type(fs); - - /* - * If a specific fstype is specified, and it doesn't match, - * ignore it. - */ - if (!fs_match(fs, &fs_type_compiled)) return 1; - - /* Are we ignoring this type? */ - if (index_in_str_array(ignored_types, fs->type) >= 0) - return 1; - - /* Do we really really want to check this fs? */ - wanted = index_in_str_array(really_wanted, fs->type) >= 0; - - /* See if the <fsck.fs> program is available. */ - s = find_fsck(fs->type); - if (s == NULL) { - if (wanted) - bb_error_msg("can't check %s: fsck.%s not found", - fs->device, fs->type); - return 1; - } - free(s); - - /* We can and want to check this file system type. */ - return 0; -} - -/* - * Returns TRUE if a partition on the same disk is already being - * checked. - */ -static int device_already_active(char *device) -{ - struct fsck_instance *inst; - char *base; - - if (force_all_parallel) - return 0; - -#ifdef BASE_MD - /* Don't check a soft raid disk with any other disk */ - if (instance_list && - (!strncmp(instance_list->device, BASE_MD, sizeof(BASE_MD)-1) || - !strncmp(device, BASE_MD, sizeof(BASE_MD)-1))) - return 1; -#endif - - base = base_device(device); - /* - * If we don't know the base device, assume that the device is - * already active if there are any fsck instances running. - */ - if (!base) - return (instance_list != 0); - for (inst = instance_list; inst; inst = inst->next) { - if (!inst->base_device || !strcmp(base, inst->base_device)) { - free(base); - return 1; - } - } - free(base); - return 0; -} - -/* Check all file systems, using the /etc/fstab table. */ -static int check_all(void) -{ - struct fs_info *fs = NULL; - int status = EXIT_OK; - int not_done_yet = 1; - int passno = 1; - int pass_done; - - if (verbose) - fputs("Checking all file systems.\n", stdout); - - /* - * Do an initial scan over the filesystem; mark filesystems - * which should be ignored as done, and resolve any "auto" - * filesystem types (done as a side-effect of calling ignore()). - */ - for (fs = filesys_info; fs; fs = fs->next) { - if (ignore(fs)) - fs->flags |= FLAG_DONE; - } - - /* - * Find and check the root filesystem. - */ - if (!parallel_root) { - for (fs = filesys_info; fs; fs = fs->next) { - if (LONE_CHAR(fs->mountpt, '/')) - break; - } - if (fs) { - if (!skip_root && !ignore(fs)) { - fsck_device(fs, 1); - status |= wait_many(FLAG_WAIT_ALL); - if (status > EXIT_NONDESTRUCT) - return status; - } - fs->flags |= FLAG_DONE; - } - } - /* - * This is for the bone-headed user who enters the root - * filesystem twice. Skip root will skep all root entries. - */ - if (skip_root) - for (fs = filesys_info; fs; fs = fs->next) - if (LONE_CHAR(fs->mountpt, '/')) - fs->flags |= FLAG_DONE; - - while (not_done_yet) { - not_done_yet = 0; - pass_done = 1; - - for (fs = filesys_info; fs; fs = fs->next) { - if (cancel_requested) - break; - if (fs->flags & FLAG_DONE) - continue; - /* - * If the filesystem's pass number is higher - * than the current pass number, then we don't - * do it yet. - */ - if (fs->passno > passno) { - not_done_yet++; - continue; - } - /* - * If a filesystem on a particular device has - * already been spawned, then we need to defer - * this to another pass. - */ - if (device_already_active(fs->device)) { - pass_done = 0; - continue; - } - /* - * Spawn off the fsck process - */ - fsck_device(fs, serialize); - fs->flags |= FLAG_DONE; - - /* - * Only do one filesystem at a time, or if we - * have a limit on the number of fsck's extant - * at one time, apply that limit. - */ - if (serialize || - (max_running && (num_running >= max_running))) { - pass_done = 0; - break; - } - } - if (cancel_requested) - break; - if (verbose > 1) - printf("--waiting-- (pass %d)\n", passno); - status |= wait_many(pass_done ? FLAG_WAIT_ALL : - FLAG_WAIT_ATLEAST_ONE); - if (pass_done) { - if (verbose > 1) - printf("----------------------------------\n"); - passno++; - } else - not_done_yet++; - } - if (cancel_requested && !kill_sent) { - kill_all(SIGTERM); - kill_sent++; - } - status |= wait_many(FLAG_WAIT_ATLEAST_ONE); - return status; -} - -static void signal_cancel(int sig FSCK_ATTR((unused))) -{ - cancel_requested++; -} - -static void PRS(int argc, char **argv) -{ - int i, j; - char *arg, *dev, *tmp = NULL; - char options[128]; - int opt = 0; - int opts_for_fsck = 0; - struct sigaction sa; - - /* - * Set up signal action - */ - memset(&sa, 0, sizeof(struct sigaction)); - sa.sa_handler = signal_cancel; - sigaction(SIGINT, &sa, 0); - sigaction(SIGTERM, &sa, 0); - - num_devices = 0; - num_args = 0; - instance_list = 0; - - for (i=1; i < argc; i++) { - arg = argv[i]; - if (!arg) - continue; - if ((arg[0] == '/' && !opts_for_fsck) || strchr(arg, '=')) { - if (num_devices >= MAX_DEVICES) { - bb_error_msg_and_die("too many devices"); - } - dev = blkid_get_devname(cache, arg, NULL); - if (!dev && strchr(arg, '=')) { - /* - * Check to see if we failed because - * /proc/partitions isn't found. - */ - if (access("/proc/partitions", R_OK) < 0) { - bb_perror_msg_and_die("can't open /proc/partitions " - "(is /proc mounted?)"); - } - /* - * Check to see if this is because - * we're not running as root - */ - if (geteuid()) - bb_error_msg_and_die( - "must be root to scan for matching filesystems: %s\n", arg); - else - bb_error_msg_and_die( - "can't find matching filesystem: %s", arg); - } - devices[num_devices++] = dev ? dev : string_copy(arg); - continue; - } - if (arg[0] != '-' || opts_for_fsck) { - if (num_args >= MAX_ARGS) { - bb_error_msg_and_die("too many arguments"); - } - args[num_args++] = string_copy(arg); - continue; - } - for (j=1; arg[j]; j++) { - if (opts_for_fsck) { - options[++opt] = arg[j]; - continue; - } - switch (arg[j]) { - case 'A': - doall++; - break; - case 'C': - progress++; - if (arg[j+1]) { - progress_fd = string_to_int(arg+j+1); - if (progress_fd < 0) - progress_fd = 0; - else - goto next_arg; - } else if ((i+1) < argc - && argv[i+1][0] != '-') { - progress_fd = string_to_int(argv[i]); - if (progress_fd < 0) - progress_fd = 0; - else { - goto next_arg; - } - } - break; - case 'V': - verbose++; - break; - case 'N': - noexecute++; - break; - case 'R': - skip_root++; - break; - case 'T': - notitle++; - break; - case 'M': - like_mount++; - break; - case 'P': - parallel_root++; - break; - case 's': - serialize++; - break; - case 't': - tmp = 0; - if (fstype) - bb_show_usage(); - if (arg[j+1]) - tmp = arg+j+1; - else if ((i+1) < argc) - tmp = argv[++i]; - else - bb_show_usage(); - fstype = string_copy(tmp); - compile_fs_type(fstype, &fs_type_compiled); - goto next_arg; - case '-': - opts_for_fsck++; - break; - case '?': - bb_show_usage(); - break; - default: - options[++opt] = arg[j]; - break; - } - } - next_arg: - if (opt) { - options[0] = '-'; - options[++opt] = '\0'; - if (num_args >= MAX_ARGS) { - bb_error_msg("too many arguments"); - } - args[num_args++] = string_copy(options); - opt = 0; - } - } - if (getenv("FSCK_FORCE_ALL_PARALLEL")) - force_all_parallel++; - if ((tmp = getenv("FSCK_MAX_INST"))) - max_running = atoi(tmp); -} - -int fsck_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int fsck_main(int argc, char **argv) -{ - int i, status = 0; - int interactive = 0; - const char *fstab; - struct fs_info *fs; - - setvbuf(stdout, NULL, _IONBF, BUFSIZ); - setvbuf(stderr, NULL, _IONBF, BUFSIZ); - - blkid_get_cache(&cache, NULL); - PRS(argc, argv); - - if (!notitle) - printf("fsck %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE); - - fstab = getenv("FSTAB_FILE"); - if (!fstab) - fstab = _PATH_MNTTAB; - load_fs_info(fstab); - - fsck_path = e2fs_set_sbin_path(); - - if ((num_devices == 1) || (serialize)) - interactive = 1; - - /* If -A was specified ("check all"), do that! */ - if (doall) - return check_all(); - - if (num_devices == 0) { - serialize++; - interactive++; - return check_all(); - } - for (i = 0; i < num_devices; i++) { - if (cancel_requested) { - if (!kill_sent) { - kill_all(SIGTERM); - kill_sent++; - } - break; - } - fs = lookup(devices[i]); - if (!fs) { - fs = create_fs_device(devices[i], 0, "auto", - 0, -1, -1); - if (!fs) - continue; - } - fsck_device(fs, interactive); - if (serialize || - (max_running && (num_running >= max_running))) { - struct fsck_instance *inst; - - inst = wait_one(0); - if (inst) { - status |= inst->exit_status; - free_instance(inst); - } - if (verbose > 1) - printf("----------------------------------\n"); - } - } - status |= wait_many(FLAG_WAIT_ALL); - blkid_put_cache(cache); - return status; -} |