diff options
| -rw-r--r-- | e2fsprogs/fsck.c | 208 |
1 files changed, 81 insertions, 127 deletions
diff --git a/e2fsprogs/fsck.c b/e2fsprogs/fsck.c index 357f5eb..8cbfc89 100644 --- a/e2fsprogs/fsck.c +++ b/e2fsprogs/fsck.c @@ -26,6 +26,17 @@ * %End-Header% */ +/* All filesystem specific hooks have been removed. + * If filesystem cannot be determined, we will execute + * "fsck.auto". Currently this also happens if you specify + * UUID=xxx or LABEL=xxx as an object to check. + * Detection code for that is also probably has to be in fsck.auto. + * + * In other words, this is _really_ is just a driver program which + * spawns actual fsck.something for each filesystem to check. + * It doesn't guess filesystem types from on-disk format. + */ + #include "busybox.h" #define EXIT_OK 0 @@ -36,12 +47,8 @@ #define EXIT_USAGE 16 #define FSCK_CANCELED 32 /* Aborted with a signal or ^C */ -#ifndef DEFAULT_FSTYPE -#define DEFAULT_FSTYPE "ext2" -#endif - /* - * Internal structure for mount tabel entries. + * Internal structure for mount table entries. */ struct fs_info { @@ -121,8 +128,16 @@ static smallint skip_root; static smallint notitle; static smallint parallel_root; static smallint force_all_parallel; + +/* "progress indicator" code is somewhat buggy and ext[23] specific. + * We should be filesystem agnostic. IOW: there should be a well-defined + * API for fsck.something, NOT ad-hoc hacks in generic fsck. */ +#define DO_PROGRESS_INDICATOR 0 +#if DO_PROGRESS_INDICATOR static smallint progress; static int progress_fd; +#endif + static int num_running; static int max_running; static char *fstype; @@ -333,7 +348,6 @@ static void parse_escape(char *word) static int parse_fstab_line(char *line, struct fs_info **ret_fs) { - /*char *dev;*/ char *device, *mntpnt, *type, *opts, *freq, *passno, *cp; struct fs_info *fs; @@ -362,40 +376,16 @@ static int parse_fstab_line(char *line, struct fs_info **ret_fs) parse_escape(freq); parse_escape(passno); - /* - dev = blkid_get_devname(cache, device, NULL); - if (dev) - device = dev;*/ - if (strchr(type, ',')) type = NULL; fs = create_fs_device(device, mntpnt, type ? type : "auto", opts, - freq ? atoi(freq) : -1, - passno ? atoi(passno) : -1); - /*if (dev) - free(dev);*/ - + freq ? atoi(freq) : -1, + passno ? atoi(passno) : -1); *ret_fs = fs; return 0; } -#if 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; - } -} -#endif -#define interpret_type(fs) ((void)0) - /* Load the filesystem database from /etc/fstab */ static void load_fs_info(const char *filename) { @@ -456,6 +446,7 @@ static struct fs_info *lookup(char *filesys) return fs; } +#if DO_PROGRESS_INDICATOR static int progress_active(void) { struct fsck_instance *inst; @@ -468,6 +459,8 @@ static int progress_active(void) } return 0; } +#endif + /* * Send a signal to all outstanding fsck child processes @@ -497,7 +490,7 @@ static struct fsck_instance *wait_one(int flags) { int status; int sig; - struct fsck_instance *inst, *inst2, *prev; + struct fsck_instance *inst, *prev; pid_t pid; if (!instance_list) @@ -551,21 +544,23 @@ static struct fsck_instance *wait_one(int flags) 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_UNCORRECTED; + if (sig != SIGINT) { + printf("Warning... %s %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); + printf("%s %s: status is %x, should never happen\n", + inst->prog, inst->device, status); status = EXIT_ERROR; } inst->exit_status = status; + +#if DO_PROGRESS_INDICATOR if (progress && (inst->flags & FLAG_PROGRESS) && !progress_active()) { + struct fsck_instance *inst2; for (inst2 = instance_list; inst2; inst2 = inst2->next) { if (inst2->flags & FLAG_DONE) continue; @@ -588,6 +583,8 @@ static struct fsck_instance *wait_one(int flags) break; } } +#endif + ret_inst: if (prev) prev->next = inst->next; @@ -629,13 +626,13 @@ static int wait_many(int flags) * 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, +static void execute(const char *type, const char *device, const char *mntpt, int interactive) { char *argv[num_args + 4]; /* see count below: */ int argc; int i; - struct fsck_instance *inst, *p; + struct fsck_instance *inst; pid_t pid; inst = xzalloc(sizeof(*inst)); @@ -645,6 +642,7 @@ static int execute(const char *type, const char *device, const char *mntpt, argv[i+1] = args[i]; /* num_args */ argc = num_args + 1; +#if DO_PROGRESS_INDICATOR if (progress && !progress_active()) { if (strcmp(type, "ext2") == 0 || strcmp(type, "ext3") == 0 @@ -653,6 +651,7 @@ static int execute(const char *type, const char *device, const char *mntpt, inst->flags |= FLAG_PROGRESS; } } +#endif argv[argc++] = xstrdup(device); /* 1 */ argv[argc] = NULL; /* 1 */ @@ -673,8 +672,11 @@ static int execute(const char *type, const char *device, const char *mntpt, bb_perror_msg_and_die("fork"); if (pid == 0) { /* Child */ - if (!interactive) + if (!interactive) { + /* NB: e2fsck will complain because of this! + * Use "fsck -s" to avoid... */ close(0); + } execvp(argv[0], argv); bb_perror_msg_and_die("%s", argv[0]); } @@ -689,20 +691,11 @@ static int execute(const char *type, const char *device, const char *mntpt, inst->device = xstrdup(device); inst->base_device = base_device(device); inst->start_time = time(NULL); - inst->next = NULL; - /* - * Find the end of the list, so we add the instance on at the end. - */ - if (!instance_list) { - instance_list = inst; - return 0; - } - p = instance_list; - while (p->next) - p = p->next; - p->next = inst; - return 0; + /* Add to the list of running fsck's. + * (was adding to the end, but adding to the front is simpler...) */ + inst->next = instance_list; + instance_list = inst; } /* @@ -713,33 +706,36 @@ static int execute(const char *type, const char *device, const char *mntpt, * 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. + * specified in /etc/fstab, or "auto". */ static void fsck_device(struct fs_info *fs, int interactive) { const char *type; - int retval; - interpret_type(fs); - - type = DEFAULT_FSTYPE; - if (strcmp(fs->type, "auto") != 0) + if (strcmp(fs->type, "auto") != 0) { type = fs->type; - else if (fstype + if (verbose > 2) + bb_info_msg("using filesystem type '%s' %s", + type, "from fstab"); + } else if (fstype && (fstype[0] != 'n' || fstype[1] != 'o') /* != "no" */ && strncmp(fstype, "opts=", 5) != 0 && strncmp(fstype, "loop", 4) != 0 && !strchr(fstype, ',') - ) + ) { type = fstype; + if (verbose > 2) + bb_info_msg("using filesystem type '%s' %s", + type, "from -t"); + } else { + type = "auto"; + if (verbose > 2) + bb_info_msg("using filesystem type '%s' %s", + type, "(default)"); + } 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--; - } + execute(type, fs->device, fs->mountpt, interactive); } /* @@ -859,8 +855,6 @@ static int ignore(struct fs_info *fs) if (fs->passno == 0) return 1; - interpret_type(fs); - /* * If a specific fstype is specified, and it doesn't match, * ignore it. @@ -871,20 +865,7 @@ static int ignore(struct fs_info *fs) /* Are we ignoring this type? */ if (index_in_str_array(ignored_types, fs->type) >= 0) return 1; -#if 0 - /* 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("cannot check %s: fsck.%s not found", - fs->device, fs->type); - return 1; - } - free(s); -#endif + /* We can and want to check this file system type. */ return 0; } @@ -1074,54 +1055,32 @@ static void parse_args(int argc, char *argv[]) int optpos = 0; int opts_for_fsck = 0; -/* in bss + /* in bss, so already zeroed num_devices = 0; num_args = 0; instance_list = NULL; -*/ + */ /* TODO: getopt32 */ for (i = 1; i < argc; i++) { arg = argv[i]; + /* "/dev/blk" or "/path" or "UUID=xxx" or "LABEL=xxx" */ if ((arg[0] == '/' && !opts_for_fsck) || strchr(arg, '=')) { -#if 0 - char *dev; - 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( -"cannot 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", arg); - else - bb_error_msg_and_die( -"cannot find matching filesystem: %s", arg); - } - devices = xrealloc(devices, (num_devices+1) * sizeof(devices[0])); - devices[num_devices++] = dev ? dev : xstrdup(arg); -#endif // FIXME: must check that arg is a blkdev, or resolve // "/path", "UUID=xxx" or "LABEL=xxx" into block device name +// ("UUID=xxx"/"LABEL=xxx" can probably shifted to fsck.auto duties) devices = xrealloc(devices, (num_devices+1) * sizeof(devices[0])); devices[num_devices++] = xstrdup(arg); continue; } + if (arg[0] != '-' || opts_for_fsck) { args = xrealloc(args, (num_args+1) * sizeof(args[0])); args[num_args++] = xstrdup(arg); continue; } + for (j = 1; arg[j]; j++) { if (opts_for_fsck) { optpos++; @@ -1134,6 +1093,7 @@ static void parse_args(int argc, char *argv[]) case 'A': doall = 1; break; +#if DO_PROGRESS_INDICATOR case 'C': progress = 1; if (arg[++j]) { /* -Cn */ @@ -1143,6 +1103,7 @@ static void parse_args(int argc, char *argv[]) /* -C n */ progress_fd = xatoi_u(argv[++i]); goto next_arg; +#endif case 'V': verbose++; break; @@ -1215,24 +1176,18 @@ static void signal_cancel(int sig ATTRIBUTE_UNUSED) int fsck_main(int argc, char *argv[]) { int i, status = 0; - int interactive = 0; + int interactive; const char *fstab; struct fs_info *fs; struct sigaction sa; - /* - * Set up signal action - */ memset(&sa, 0, sizeof(sa)); sa.sa_handler = signal_cancel; sigaction(SIGINT, &sa, 0); sigaction(SIGTERM, &sa, 0); setbuf(stdout, NULL); - /*setvbuf(stdout, NULL, _IONBF, BUFSIZ);*/ - /*setvbuf(stderr, NULL, _IONBF, BUFSIZ);*/ - /*blkid_get_cache(&cache, NULL);*/ parse_args(argc, argv); if (!notitle) @@ -1245,8 +1200,7 @@ int fsck_main(int argc, char *argv[]) fstab = "/etc/fstab"; load_fs_info(fstab); - if (num_devices == 1 || serialize) - interactive = 1; + interactive = (num_devices == 1) | serialize; /* If -A was specified ("check all"), do that! */ if (doall) @@ -1263,11 +1217,12 @@ int fsck_main(int argc, char *argv[]) kill_all_if_cancel_requested(); break; } + fs = lookup(devices[i]); - if (!fs) { + if (!fs) fs = create_fs_device(devices[i], 0, "auto", 0, -1, -1); - } fsck_device(fs, interactive); + if (serialize || (max_running && (num_running >= max_running)) ) { @@ -1283,6 +1238,5 @@ int fsck_main(int argc, char *argv[]) } } status |= wait_many(FLAG_WAIT_ALL); - /*blkid_put_cache(cache);*/ return status; } |