| /* |
| * mdadm - manage Linux "md" devices aka RAID arrays. |
| * |
| * Copyright (C) 2001-2013 Neil Brown <neilb@suse.de> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| * Author: Neil Brown |
| * Email: <neilb@suse.de> |
| * |
| * Additions for bitmap and write-behind RAID options, Copyright (C) 2003-2004, |
| * Paul Clements, SteelEye Technology, Inc. |
| */ |
| |
| #include "mdadm.h" |
| #include "md_p.h" |
| #include <ctype.h> |
| |
| static int scan_assemble(struct supertype *ss, |
| struct context *c, |
| struct mddev_ident *ident); |
| static int misc_scan(char devmode, struct context *c); |
| static int stop_scan(int verbose); |
| static int misc_list(struct mddev_dev *devlist, |
| struct mddev_ident *ident, |
| char *dump_directory, |
| struct supertype *ss, struct context *c); |
| const char Name[] = "mdadm"; |
| |
| int main(int argc, char *argv[]) |
| { |
| int mode = 0; |
| int opt; |
| int option_index; |
| int rv; |
| int i; |
| |
| unsigned long long array_size = 0; |
| unsigned long long data_offset = INVALID_SECTORS; |
| struct mddev_ident ident; |
| char *configfile = NULL; |
| int devmode = 0; |
| int bitmap_fd = -1; |
| struct mddev_dev *devlist = NULL; |
| struct mddev_dev **devlistend = & devlist; |
| struct mddev_dev *dv; |
| mdu_array_info_t array; |
| int devs_found = 0; |
| char *symlinks = NULL; |
| int grow_continue = 0; |
| /* autof indicates whether and how to create device node. |
| * bottom 3 bits are style. Rest (when shifted) are number of parts |
| * 0 - unset |
| * 1 - don't create (no) |
| * 2 - if is_standard, then create (yes) |
| * 3 - create as 'md' - reject is_standard mdp (md) |
| * 4 - create as 'mdp' - reject is_standard md (mdp) |
| * 5 - default to md if not is_standard (md in config file) |
| * 6 - default to mdp if not is_standard (part, or mdp in config file) |
| */ |
| struct context c = { |
| .require_homehost = 1, |
| }; |
| struct shape s = { |
| .journaldisks = 0, |
| .level = UnSet, |
| .layout = UnSet, |
| .bitmap_chunk = UnSet, |
| .consistency_policy = CONSISTENCY_POLICY_UNKNOWN, |
| }; |
| |
| char sys_hostname[256]; |
| char *mailaddr = NULL; |
| char *program = NULL; |
| int increments = 20; |
| int daemonise = 0; |
| char *pidfile = NULL; |
| int oneshot = 0; |
| int spare_sharing = 1; |
| struct supertype *ss = NULL; |
| enum flag_mode writemostly = FlagDefault; |
| enum flag_mode failfast = FlagDefault; |
| char *shortopt = short_options; |
| int dosyslog = 0; |
| int rebuild_map = 0; |
| char *remove_path = NULL; |
| char *udev_filename = NULL; |
| char *dump_directory = NULL; |
| |
| int print_help = 0; |
| FILE *outf; |
| |
| int mdfd = -1; |
| int locked = 0; |
| |
| srandom(time(0) ^ getpid()); |
| |
| ident.uuid_set = 0; |
| ident.level = UnSet; |
| ident.raid_disks = UnSet; |
| ident.super_minor = UnSet; |
| ident.devices = 0; |
| ident.spare_group = NULL; |
| ident.autof = 0; |
| ident.st = NULL; |
| ident.bitmap_fd = -1; |
| ident.bitmap_file = NULL; |
| ident.name[0] = 0; |
| ident.container = NULL; |
| ident.member = NULL; |
| |
| if (get_linux_version() < 2006015) { |
| pr_err("This version of mdadm does not support kernels older than 2.6.15\n"); |
| exit(1); |
| } |
| |
| while ((option_index = -1), |
| (opt = getopt_long(argc, argv, shortopt, long_options, |
| &option_index)) != -1) { |
| int newmode = mode; |
| /* firstly, some mode-independent options */ |
| switch(opt) { |
| case HelpOptions: |
| print_help = 2; |
| continue; |
| case 'h': |
| print_help = 1; |
| continue; |
| |
| case 'V': |
| fputs(Version, stderr); |
| exit(0); |
| |
| case 'v': c.verbose++; |
| continue; |
| |
| case 'q': c.verbose--; |
| continue; |
| |
| case 'b': |
| if (mode == ASSEMBLE || mode == BUILD || |
| mode == CREATE || mode == GROW || |
| mode == INCREMENTAL || mode == MANAGE) |
| break; /* b means bitmap */ |
| case Brief: |
| c.brief = 1; |
| continue; |
| |
| case NoDevices: |
| c.no_devices = 1; |
| continue; |
| |
| case 'Y': c.export++; |
| continue; |
| |
| case HomeHost: |
| if (strcasecmp(optarg, "<ignore>") == 0) |
| c.require_homehost = 0; |
| else |
| c.homehost = optarg; |
| continue; |
| |
| case OffRootOpt: |
| /* Silently ignore old option */ |
| continue; |
| |
| case Prefer: |
| if (c.prefer) |
| free(c.prefer); |
| if (asprintf(&c.prefer, "/%s/", optarg) <= 0) |
| c.prefer = NULL; |
| continue; |
| |
| case ':': |
| case '?': |
| fputs(Usage, stderr); |
| exit(2); |
| } |
| /* second, figure out the mode. |
| * Some options force the mode. Others |
| * set the mode if it isn't already |
| */ |
| |
| switch(opt) { |
| case ManageOpt: |
| newmode = MANAGE; |
| shortopt = short_bitmap_options; |
| break; |
| case 'a': |
| case Add: |
| case AddSpare: |
| case AddJournal: |
| case 'r': |
| case Remove: |
| case Replace: |
| case With: |
| case 'f': |
| case Fail: |
| case ReAdd: /* re-add */ |
| case ClusterConfirm: |
| if (!mode) { |
| newmode = MANAGE; |
| shortopt = short_bitmap_options; |
| } |
| break; |
| |
| case 'A': newmode = ASSEMBLE; |
| shortopt = short_bitmap_auto_options; |
| break; |
| case 'B': newmode = BUILD; |
| shortopt = short_bitmap_auto_options; |
| break; |
| case 'C': newmode = CREATE; |
| shortopt = short_bitmap_auto_options; |
| break; |
| case 'F': newmode = MONITOR; |
| break; |
| case 'G': newmode = GROW; |
| shortopt = short_bitmap_options; |
| break; |
| case 'I': newmode = INCREMENTAL; |
| shortopt = short_bitmap_auto_options; |
| break; |
| case AutoDetect: |
| newmode = AUTODETECT; |
| break; |
| |
| case MiscOpt: |
| case 'D': |
| case 'E': |
| case 'X': |
| case 'Q': |
| case ExamineBB: |
| case Dump: |
| case Restore: |
| case Action: |
| newmode = MISC; |
| break; |
| |
| case 'R': |
| case 'S': |
| case 'o': |
| case 'w': |
| case 'W': |
| case WaitOpt: |
| case Waitclean: |
| case DetailPlatform: |
| case KillSubarray: |
| case UpdateSubarray: |
| case UdevRules: |
| case KillOpt: |
| if (!mode) |
| newmode = MISC; |
| break; |
| |
| case NoSharing: |
| newmode = MONITOR; |
| break; |
| } |
| if (mode && newmode == mode) { |
| /* everybody happy ! */ |
| } else if (mode && newmode != mode) { |
| /* not allowed.. */ |
| pr_err(""); |
| if (option_index >= 0) |
| fprintf(stderr, "--%s", long_options[option_index].name); |
| else |
| fprintf(stderr, "-%c", opt); |
| fprintf(stderr, " would set mdadm mode to \"%s\", but it is already set to \"%s\".\n", |
| map_num(modes, newmode), |
| map_num(modes, mode)); |
| exit(2); |
| } else if (!mode && newmode) { |
| mode = newmode; |
| if (mode == MISC && devs_found) { |
| pr_err("No action given for %s in --misc mode\n", |
| devlist->devname); |
| cont_err("Action options must come before device names\n"); |
| exit(2); |
| } |
| } else { |
| /* special case of -c --help */ |
| if ((opt == 'c' || opt == ConfigFile) && |
| (strncmp(optarg, "--h", 3) == 0 || |
| strncmp(optarg, "-h", 2) == 0)) { |
| fputs(Help_config, stdout); |
| exit(0); |
| } |
| |
| /* If first option is a device, don't force the mode yet */ |
| if (opt == 1) { |
| if (devs_found == 0) { |
| dv = xmalloc(sizeof(*dv)); |
| dv->devname = optarg; |
| dv->disposition = devmode; |
| dv->writemostly = writemostly; |
| dv->failfast = failfast; |
| dv->used = 0; |
| dv->next = NULL; |
| *devlistend = dv; |
| devlistend = &dv->next; |
| |
| devs_found++; |
| continue; |
| } |
| /* No mode yet, and this is the second device ... */ |
| pr_err("An option must be given to set the mode before a second device\n" |
| " (%s) is listed\n", optarg); |
| exit(2); |
| } |
| if (option_index >= 0) |
| pr_err("--%s", long_options[option_index].name); |
| else |
| pr_err("-%c", opt); |
| fprintf(stderr, " does not set the mode, and so cannot be the first option.\n"); |
| exit(2); |
| } |
| |
| /* if we just set the mode, then done */ |
| switch(opt) { |
| case ManageOpt: |
| case MiscOpt: |
| case 'A': |
| case 'B': |
| case 'C': |
| case 'F': |
| case 'G': |
| case 'I': |
| case AutoDetect: |
| continue; |
| } |
| if (opt == 1) { |
| /* an undecorated option - must be a device name. |
| */ |
| |
| if (devs_found > 0 && devmode == DetailPlatform) { |
| pr_err("controller may only be specified once. %s ignored\n", |
| optarg); |
| continue; |
| } |
| |
| if (devs_found > 0 && mode == MANAGE && !devmode) { |
| pr_err("Must give one of -a/-r/-f for subsequent devices at %s\n", optarg); |
| exit(2); |
| } |
| if (devs_found > 0 && mode == GROW && !devmode) { |
| pr_err("Must give -a/--add for devices to add: %s\n", optarg); |
| exit(2); |
| } |
| dv = xmalloc(sizeof(*dv)); |
| dv->devname = optarg; |
| dv->disposition = devmode; |
| dv->writemostly = writemostly; |
| dv->failfast = failfast; |
| dv->used = 0; |
| dv->next = NULL; |
| *devlistend = dv; |
| devlistend = &dv->next; |
| |
| devs_found++; |
| continue; |
| } |
| |
| /* We've got a mode, and opt is now something else which |
| * could depend on the mode */ |
| #define O(a,b) ((a<<16)|b) |
| switch (O(mode,opt)) { |
| case O(GROW,'c'): |
| case O(GROW,ChunkSize): |
| case O(CREATE,'c'): |
| case O(CREATE,ChunkSize): |
| case O(BUILD,'c'): /* chunk or rounding */ |
| case O(BUILD,ChunkSize): /* chunk or rounding */ |
| if (s.chunk) { |
| pr_err("chunk/rounding may only be specified once. Second value is %s.\n", optarg); |
| exit(2); |
| } |
| s.chunk = parse_size(optarg); |
| if (s.chunk == INVALID_SECTORS || |
| s.chunk < 8 || (s.chunk&1)) { |
| pr_err("invalid chunk/rounding value: %s\n", |
| optarg); |
| exit(2); |
| } |
| /* Convert sectors to K */ |
| s.chunk /= 2; |
| continue; |
| |
| case O(INCREMENTAL, 'e'): |
| case O(CREATE,'e'): |
| case O(ASSEMBLE,'e'): |
| case O(MISC,'e'): /* set metadata (superblock) information */ |
| if (ss) { |
| pr_err("metadata information already given\n"); |
| exit(2); |
| } |
| for(i = 0; !ss && superlist[i]; i++) |
| ss = superlist[i]->match_metadata_desc(optarg); |
| |
| if (!ss) { |
| pr_err("unrecognised metadata identifier: %s\n", optarg); |
| exit(2); |
| } |
| continue; |
| |
| case O(MANAGE,'W'): |
| case O(MANAGE,WriteMostly): |
| case O(BUILD,'W'): |
| case O(BUILD,WriteMostly): |
| case O(CREATE,'W'): |
| case O(CREATE,WriteMostly): |
| /* set write-mostly for following devices */ |
| writemostly = FlagSet; |
| continue; |
| |
| case O(MANAGE,'w'): |
| /* clear write-mostly for following devices */ |
| writemostly = FlagClear; |
| continue; |
| |
| case O(MANAGE,FailFast): |
| case O(CREATE,FailFast): |
| failfast = FlagSet; |
| continue; |
| case O(MANAGE,NoFailFast): |
| failfast = FlagClear; |
| continue; |
| |
| case O(GROW,'z'): |
| case O(CREATE,'z'): |
| case O(BUILD,'z'): /* size */ |
| if (s.size > 0) { |
| pr_err("size may only be specified once. Second value is %s.\n", optarg); |
| exit(2); |
| } |
| if (strcmp(optarg, "max") == 0) |
| s.size = MAX_SIZE; |
| else { |
| s.size = parse_size(optarg); |
| if (s.size == INVALID_SECTORS || s.size < 8) { |
| pr_err("invalid size: %s\n", optarg); |
| exit(2); |
| } |
| /* convert sectors to K */ |
| s.size /= 2; |
| } |
| continue; |
| |
| case O(GROW,'Z'): /* array size */ |
| if (array_size > 0) { |
| pr_err("array-size may only be specified once. Second value is %s.\n", optarg); |
| exit(2); |
| } |
| if (strcmp(optarg, "max") == 0) |
| array_size = MAX_SIZE; |
| else { |
| array_size = parse_size(optarg); |
| if (array_size == 0 || |
| array_size == INVALID_SECTORS) { |
| pr_err("invalid array size: %s\n", |
| optarg); |
| exit(2); |
| } |
| } |
| continue; |
| |
| case O(CREATE,DataOffset): |
| case O(GROW,DataOffset): |
| if (data_offset != INVALID_SECTORS) { |
| pr_err("data-offset may only be specified one. Second value is %s.\n", optarg); |
| exit(2); |
| } |
| if (mode == CREATE && strcmp(optarg, "variable") == 0) |
| data_offset = VARIABLE_OFFSET; |
| else |
| data_offset = parse_size(optarg); |
| if (data_offset == INVALID_SECTORS) { |
| pr_err("invalid data-offset: %s\n", |
| optarg); |
| exit(2); |
| } |
| continue; |
| |
| case O(GROW,'l'): |
| case O(CREATE,'l'): |
| case O(BUILD,'l'): /* set raid level*/ |
| if (s.level != UnSet) { |
| pr_err("raid level may only be set once. Second value is %s.\n", optarg); |
| exit(2); |
| } |
| s.level = map_name(pers, optarg); |
| if (s.level == UnSet) { |
| pr_err("invalid raid level: %s\n", |
| optarg); |
| exit(2); |
| } |
| if (s.level != 0 && s.level != LEVEL_LINEAR && |
| s.level != 1 && s.level != LEVEL_MULTIPATH && |
| s.level != LEVEL_FAULTY && s.level != 10 && |
| mode == BUILD) { |
| pr_err("Raid level %s not permitted with --build.\n", |
| optarg); |
| exit(2); |
| } |
| if (s.sparedisks > 0 && s.level < 1 && s.level >= -1) { |
| pr_err("raid level %s is incompatible with spare-devices setting.\n", |
| optarg); |
| exit(2); |
| } |
| ident.level = s.level; |
| continue; |
| |
| case O(GROW, 'p'): /* new layout */ |
| case O(GROW, Layout): |
| if (s.layout_str) { |
| pr_err("layout may only be sent once. Second value was %s\n", optarg); |
| exit(2); |
| } |
| s.layout_str = optarg; |
| /* 'Grow' will parse the value */ |
| continue; |
| |
| case O(CREATE,'p'): /* raid5 layout */ |
| case O(CREATE,Layout): |
| case O(BUILD,'p'): /* faulty layout */ |
| case O(BUILD,Layout): |
| if (s.layout != UnSet) { |
| pr_err("layout may only be sent once. Second value was %s\n", optarg); |
| exit(2); |
| } |
| switch(s.level) { |
| default: |
| pr_err("layout not meaningful for %s arrays.\n", |
| map_num(pers, s.level)); |
| exit(2); |
| case UnSet: |
| pr_err("raid level must be given before layout.\n"); |
| exit(2); |
| |
| case 0: |
| s.layout = map_name(r0layout, optarg); |
| if (s.layout == UnSet) { |
| pr_err("layout %s not understood for raid0.\n", |
| optarg); |
| exit(2); |
| } |
| break; |
| case 5: |
| s.layout = map_name(r5layout, optarg); |
| if (s.layout == UnSet) { |
| pr_err("layout %s not understood for raid5.\n", |
| optarg); |
| exit(2); |
| } |
| break; |
| case 6: |
| s.layout = map_name(r6layout, optarg); |
| if (s.layout == UnSet) { |
| pr_err("layout %s not understood for raid6.\n", |
| optarg); |
| exit(2); |
| } |
| break; |
| |
| case 10: |
| s.layout = parse_layout_10(optarg); |
| if (s.layout < 0) { |
| pr_err("layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg); |
| exit(2); |
| } |
| break; |
| case LEVEL_FAULTY: |
| /* Faulty |
| * modeNNN |
| */ |
| s.layout = parse_layout_faulty(optarg); |
| if (s.layout == -1) { |
| pr_err("layout %s not understood for faulty.\n", |
| optarg); |
| exit(2); |
| } |
| break; |
| } |
| continue; |
| |
| case O(CREATE,AssumeClean): |
| case O(BUILD,AssumeClean): /* assume clean */ |
| case O(GROW,AssumeClean): |
| s.assume_clean = 1; |
| continue; |
| |
| case O(GROW,'n'): |
| case O(CREATE,'n'): |
| case O(BUILD,'n'): /* number of raid disks */ |
| if (s.raiddisks) { |
| pr_err("raid-devices set twice: %d and %s\n", |
| s.raiddisks, optarg); |
| exit(2); |
| } |
| s.raiddisks = parse_num(optarg); |
| if (s.raiddisks <= 0) { |
| pr_err("invalid number of raid devices: %s\n", |
| optarg); |
| exit(2); |
| } |
| ident.raid_disks = s.raiddisks; |
| continue; |
| case O(ASSEMBLE, Nodes): |
| case O(GROW, Nodes): |
| case O(CREATE, Nodes): |
| c.nodes = parse_num(optarg); |
| if (c.nodes < 2) { |
| pr_err("clustered array needs two nodes at least: %s\n", |
| optarg); |
| exit(2); |
| } |
| continue; |
| case O(CREATE, ClusterName): |
| case O(ASSEMBLE, ClusterName): |
| c.homecluster = optarg; |
| if (strlen(c.homecluster) > 64) { |
| pr_err("Cluster name too big.\n"); |
| exit(2); |
| } |
| continue; |
| case O(CREATE,'x'): /* number of spare (eXtra) disks */ |
| if (s.sparedisks) { |
| pr_err("spare-devices set twice: %d and %s\n", |
| s.sparedisks, optarg); |
| exit(2); |
| } |
| if (s.level != UnSet && s.level <= 0 && s.level >= -1) { |
| pr_err("spare-devices setting is incompatible with raid level %d\n", |
| s.level); |
| exit(2); |
| } |
| s.sparedisks = parse_num(optarg); |
| if (s.sparedisks < 0) { |
| pr_err("invalid number of spare-devices: %s\n", |
| optarg); |
| exit(2); |
| } |
| continue; |
| |
| case O(CREATE,'a'): |
| case O(CREATE,Auto): |
| case O(BUILD,'a'): |
| case O(BUILD,Auto): |
| case O(INCREMENTAL,'a'): |
| case O(INCREMENTAL,Auto): |
| case O(ASSEMBLE,'a'): |
| case O(ASSEMBLE,Auto): /* auto-creation of device node */ |
| c.autof = parse_auto(optarg, "--auto flag", 0); |
| continue; |
| |
| case O(CREATE,Symlinks): |
| case O(BUILD,Symlinks): |
| case O(ASSEMBLE,Symlinks): /* auto creation of symlinks in /dev to /dev/md */ |
| symlinks = optarg; |
| continue; |
| |
| case O(BUILD,'f'): /* force honouring '-n 1' */ |
| case O(BUILD,Force): /* force honouring '-n 1' */ |
| case O(GROW,'f'): /* ditto */ |
| case O(GROW,Force): /* ditto */ |
| case O(CREATE,'f'): /* force honouring of device list */ |
| case O(CREATE,Force): /* force honouring of device list */ |
| case O(ASSEMBLE,'f'): /* force assembly */ |
| case O(ASSEMBLE,Force): /* force assembly */ |
| case O(MISC,'f'): /* force zero */ |
| case O(MISC,Force): /* force zero */ |
| case O(MANAGE,Force): /* add device which is too large */ |
| c.force = 1; |
| continue; |
| /* now for the Assemble options */ |
| case O(ASSEMBLE, FreezeReshape): /* Freeze reshape during |
| * initrd phase */ |
| case O(INCREMENTAL, FreezeReshape): |
| c.freeze_reshape = 1; |
| continue; |
| case O(CREATE,'u'): /* uuid of array */ |
| case O(ASSEMBLE,'u'): /* uuid of array */ |
| if (ident.uuid_set) { |
| pr_err("uuid cannot be set twice. Second value %s.\n", optarg); |
| exit(2); |
| } |
| if (parse_uuid(optarg, ident.uuid)) |
| ident.uuid_set = 1; |
| else { |
| pr_err("Bad uuid: %s\n", optarg); |
| exit(2); |
| } |
| continue; |
| |
| case O(CREATE,'N'): |
| case O(ASSEMBLE,'N'): |
| case O(MISC,'N'): |
| if (ident.name[0]) { |
| pr_err("name cannot be set twice. Second value %s.\n", optarg); |
| exit(2); |
| } |
| if (mode == MISC && !c.subarray) { |
| pr_err("-N/--name only valid with --update-subarray in misc mode\n"); |
| exit(2); |
| } |
| if (strlen(optarg) > 32) { |
| pr_err("name '%s' is too long, 32 chars max.\n", |
| optarg); |
| exit(2); |
| } |
| strcpy(ident.name, optarg); |
| continue; |
| |
| case O(ASSEMBLE,'m'): /* super-minor for array */ |
| case O(ASSEMBLE,SuperMinor): |
| if (ident.super_minor != UnSet) { |
| pr_err("super-minor cannot be set twice. Second value: %s.\n", optarg); |
| exit(2); |
| } |
| if (strcmp(optarg, "dev") == 0) |
| ident.super_minor = -2; |
| else { |
| ident.super_minor = parse_num(optarg); |
| if (ident.super_minor < 0) { |
| pr_err("Bad super-minor number: %s.\n", optarg); |
| exit(2); |
| } |
| } |
| continue; |
| |
| case O(ASSEMBLE,'o'): |
| case O(MANAGE,'o'): |
| case O(CREATE,'o'): |
| c.readonly = 1; |
| continue; |
| |
| case O(ASSEMBLE,'U'): /* update the superblock */ |
| case O(MISC,'U'): |
| if (c.update) { |
| pr_err("Can only update one aspect of superblock, both %s and %s given.\n", |
| c.update, optarg); |
| exit(2); |
| } |
| if (mode == MISC && !c.subarray) { |
| pr_err("Only subarrays can be updated in misc mode\n"); |
| exit(2); |
| } |
| c.update = optarg; |
| if (strcmp(c.update, "sparc2.2") == 0) |
| continue; |
| if (strcmp(c.update, "super-minor") == 0) |
| continue; |
| if (strcmp(c.update, "summaries") == 0) |
| continue; |
| if (strcmp(c.update, "resync") == 0) |
| continue; |
| if (strcmp(c.update, "uuid") == 0) |
| continue; |
| if (strcmp(c.update, "name") == 0) |
| continue; |
| if (strcmp(c.update, "homehost") == 0) |
| continue; |
| if (strcmp(c.update, "home-cluster") == 0) |
| continue; |
| if (strcmp(c.update, "nodes") == 0) |
| continue; |
| if (strcmp(c.update, "devicesize") == 0) |
| continue; |
| if (strcmp(c.update, "bitmap") == 0) |
| continue; |
| if (strcmp(c.update, "no-bitmap") == 0) |
| continue; |
| if (strcmp(c.update, "bbl") == 0) |
| continue; |
| if (strcmp(c.update, "no-bbl") == 0) |
| continue; |
| if (strcmp(c.update, "force-no-bbl") == 0) |
| continue; |
| if (strcmp(c.update, "ppl") == 0) |
| continue; |
| if (strcmp(c.update, "no-ppl") == 0) |
| continue; |
| if (strcmp(c.update, "metadata") == 0) |
| continue; |
| if (strcmp(c.update, "revert-reshape") == 0) |
| continue; |
| if (strcmp(c.update, "layout-original") == 0 || |
| strcmp(c.update, "layout-alternate") == 0 || |
| strcmp(c.update, "layout-unspecified") == 0) |
| continue; |
| if (strcmp(c.update, "byteorder") == 0) { |
| if (ss) { |
| pr_err("must not set metadata type with --update=byteorder.\n"); |
| exit(2); |
| } |
| for(i = 0; !ss && superlist[i]; i++) |
| ss = superlist[i]->match_metadata_desc( |
| "0.swap"); |
| if (!ss) { |
| pr_err("INTERNAL ERROR cannot find 0.swap\n"); |
| exit(2); |
| } |
| |
| continue; |
| } |
| if (strcmp(c.update,"?") == 0 || |
| strcmp(c.update, "help") == 0) { |
| outf = stdout; |
| fprintf(outf, "%s: ", Name); |
| } else { |
| outf = stderr; |
| fprintf(outf, |
| "%s: '--update=%s' is invalid. ", |
| Name, c.update); |
| } |
| fprintf(outf, "Valid --update options are:\n" |
| " 'sparc2.2', 'super-minor', 'uuid', 'name', 'nodes', 'resync',\n" |
| " 'summaries', 'homehost', 'home-cluster', 'byteorder', 'devicesize',\n" |
| " 'bitmap', 'no-bitmap', 'metadata', 'revert-reshape'\n" |
| " 'bbl', 'no-bbl', 'force-no-bbl', 'ppl', 'no-ppl'\n" |
| " 'layout-original', 'layout-alternate', 'layout-unspecified'\n" |
| ); |
| exit(outf == stdout ? 0 : 2); |
| |
| case O(MANAGE,'U'): |
| /* update=devicesize is allowed with --re-add */ |
| if (devmode != 'A') { |
| pr_err("--update in Manage mode only allowed with --re-add.\n"); |
| exit(1); |
| } |
| if (c.update) { |
| pr_err("Can only update one aspect of superblock, both %s and %s given.\n", |
| c.update, optarg); |
| exit(2); |
| } |
| c.update = optarg; |
| if (strcmp(c.update, "devicesize") != 0 && |
| strcmp(c.update, "bbl") != 0 && |
| strcmp(c.update, "force-no-bbl") != 0 && |
| strcmp(c.update, "no-bbl") != 0) { |
| pr_err("only 'devicesize', 'bbl', 'no-bbl', and 'force-no-bbl' can be updated with --re-add\n"); |
| exit(2); |
| } |
| continue; |
| |
| case O(INCREMENTAL,NoDegraded): |
| pr_err("--no-degraded is deprecated in Incremental mode\n"); |
| case O(ASSEMBLE,NoDegraded): /* --no-degraded */ |
| c.runstop = -1; /* --stop isn't allowed for --assemble, |
| * so we overload slightly */ |
| continue; |
| |
| case O(ASSEMBLE,'c'): |
| case O(ASSEMBLE,ConfigFile): |
| case O(INCREMENTAL, 'c'): |
| case O(INCREMENTAL, ConfigFile): |
| case O(MISC, 'c'): |
| case O(MISC, ConfigFile): |
| case O(MONITOR,'c'): |
| case O(MONITOR,ConfigFile): |
| case O(CREATE,ConfigFile): |
| if (configfile) { |
| pr_err("configfile cannot be set twice. Second value is %s.\n", optarg); |
| exit(2); |
| } |
| configfile = optarg; |
| set_conffile(configfile); |
| /* FIXME possibly check that config file exists. Even parse it */ |
| continue; |
| case O(ASSEMBLE,'s'): /* scan */ |
| case O(MISC,'s'): |
| case O(MONITOR,'s'): |
| case O(INCREMENTAL,'s'): |
| c.scan = 1; |
| continue; |
| |
| case O(MONITOR,'m'): /* mail address */ |
| case O(MONITOR,EMail): |
| if (mailaddr) |
| pr_err("only specify one mailaddress. %s ignored.\n", |
| optarg); |
| else |
| mailaddr = optarg; |
| continue; |
| |
| case O(MONITOR,'p'): /* alert program */ |
| case O(MONITOR,ProgramOpt): /* alert program */ |
| if (program) |
| pr_err("only specify one alter program. %s ignored.\n", |
| optarg); |
| else |
| program = optarg; |
| continue; |
| |
| case O(MONITOR,'r'): /* rebuild increments */ |
| case O(MONITOR,Increment): |
| increments = atoi(optarg); |
| if (increments > 99 || increments < 1) { |
| pr_err("please specify positive integer between 1 and 99 as rebuild increments.\n"); |
| exit(2); |
| } |
| continue; |
| |
| case O(MONITOR,'d'): /* delay in seconds */ |
| case O(GROW, 'd'): |
| case O(BUILD,'d'): /* delay for bitmap updates */ |
| case O(CREATE,'d'): |
| if (c.delay) |
| pr_err("only specify delay once. %s ignored.\n", |
| optarg); |
| else { |
| c.delay = parse_num(optarg); |
| if (c.delay < 1) { |
| pr_err("invalid delay: %s\n", |
| optarg); |
| exit(2); |
| } |
| } |
| continue; |
| case O(MONITOR,'f'): /* daemonise */ |
| case O(MONITOR,Fork): |
| daemonise = 1; |
| continue; |
| case O(MONITOR,'i'): /* pid */ |
| if (pidfile) |
| pr_err("only specify one pid file. %s ignored.\n", |
| optarg); |
| else |
| pidfile = optarg; |
| continue; |
| case O(MONITOR,'1'): /* oneshot */ |
| oneshot = 1; |
| spare_sharing = 0; |
| continue; |
| case O(MONITOR,'t'): /* test */ |
| c.test = 1; |
| continue; |
| case O(MONITOR,'y'): /* log messages to syslog */ |
| openlog("mdadm", LOG_PID, SYSLOG_FACILITY); |
| dosyslog = 1; |
| continue; |
| case O(MONITOR, NoSharing): |
| spare_sharing = 0; |
| continue; |
| |
| /* now the general management options. Some are applicable |
| * to other modes. None have arguments. |
| */ |
| case O(GROW,'a'): |
| case O(GROW,Add): |
| case O(MANAGE,'a'): |
| case O(MANAGE,Add): /* add a drive */ |
| devmode = 'a'; |
| continue; |
| case O(MANAGE,AddSpare): /* add drive - never re-add */ |
| devmode = 'S'; |
| continue; |
| case O(MANAGE,AddJournal): /* add journal */ |
| if (s.journaldisks && (s.level < 4 || s.level > 6)) { |
| pr_err("--add-journal is only supported for RAID level 4/5/6.\n"); |
| exit(2); |
| } |
| devmode = 'j'; |
| continue; |
| case O(MANAGE,ReAdd): |
| devmode = 'A'; |
| continue; |
| case O(MANAGE,'r'): /* remove a drive */ |
| case O(MANAGE,Remove): |
| devmode = 'r'; |
| continue; |
| case O(MANAGE,'f'): /* set faulty */ |
| case O(MANAGE,Fail): |
| case O(INCREMENTAL,'f'): |
| case O(INCREMENTAL,Remove): |
| case O(INCREMENTAL,Fail): /* r for incremental is taken, use f |
| * even though we will both fail and |
| * remove the device */ |
| devmode = 'f'; |
| continue; |
| case O(MANAGE, ClusterConfirm): |
| devmode = 'c'; |
| continue; |
| case O(MANAGE,Replace): |
| /* Mark these devices for replacement */ |
| devmode = 'R'; |
| continue; |
| case O(MANAGE,With): |
| /* These are the replacements to use */ |
| if (devmode != 'R') { |
| pr_err("--with must follow --replace\n"); |
| exit(2); |
| } |
| devmode = 'W'; |
| continue; |
| case O(INCREMENTAL,'R'): |
| case O(MANAGE,'R'): |
| case O(ASSEMBLE,'R'): |
| case O(BUILD,'R'): |
| case O(CREATE,'R'): /* Run the array */ |
| if (c.runstop < 0) { |
| pr_err("Cannot both Stop and Run an array\n"); |
| exit(2); |
| } |
| c.runstop = 1; |
| continue; |
| case O(MANAGE,'S'): |
| if (c.runstop > 0) { |
| pr_err("Cannot both Run and Stop an array\n"); |
| exit(2); |
| } |
| c.runstop = -1; |
| continue; |
| case O(MANAGE,'t'): |
| c.test = 1; |
| continue; |
| |
| case O(MISC,'Q'): |
| case O(MISC,'D'): |
| case O(MISC,'E'): |
| case O(MISC,KillOpt): |
| case O(MISC,'R'): |
| case O(MISC,'S'): |
| case O(MISC,'X'): |
| case O(MISC, ExamineBB): |
| case O(MISC,'o'): |
| case O(MISC,'w'): |
| case O(MISC,'W'): |
| case O(MISC, WaitOpt): |
| case O(MISC, Waitclean): |
| case O(MISC, DetailPlatform): |
| case O(MISC, KillSubarray): |
| case O(MISC, UpdateSubarray): |
| case O(MISC, Dump): |
| case O(MISC, Restore): |
| case O(MISC ,Action): |
| if (opt == KillSubarray || opt == UpdateSubarray) { |
| if (c.subarray) { |
| pr_err("subarray can only be specified once\n"); |
| exit(2); |
| } |
| c.subarray = optarg; |
| } |
| if (opt == Action) { |
| if (c.action) { |
| pr_err("Only one --action can be specified\n"); |
| exit(2); |
| } |
| if (strcmp(optarg, "idle") == 0 || |
| strcmp(optarg, "frozen") == 0 || |
| strcmp(optarg, "check") == 0 || |
| strcmp(optarg, "repair") == 0) |
| c.action = optarg; |
| else { |
| pr_err("action must be one of idle, frozen, check, repair\n"); |
| exit(2); |
| } |
| } |
| if (devmode && devmode != opt && |
| (devmode == 'E' || |
| (opt == 'E' && devmode != 'Q'))) { |
| pr_err("--examine/-E cannot be given with "); |
| if (devmode == 'E') { |
| if (option_index >= 0) |
| fprintf(stderr, "--%s\n", |
| long_options[option_index].name); |
| else |
| fprintf(stderr, "-%c\n", opt); |
| } else if (isalpha(devmode)) |
| fprintf(stderr, "-%c\n", devmode); |
| else |
| fprintf(stderr, "previous option\n"); |
| exit(2); |
| } |
| devmode = opt; |
| if (opt == Dump || opt == Restore) { |
| if (dump_directory != NULL) { |
| pr_err("dump/restore directory specified twice: %s and %s\n", |
| dump_directory, optarg); |
| exit(2); |
| } |
| dump_directory = optarg; |
| } |
| continue; |
| case O(MISC, UdevRules): |
| if (devmode && devmode != opt) { |
| pr_err("--udev-rules must be the only option.\n"); |
| } else { |
| if (udev_filename) |
| pr_err("only specify one udev rule filename. %s ignored.\n", |
| optarg); |
| else |
| udev_filename = optarg; |
| } |
| devmode = opt; |
| continue; |
| case O(MISC,'t'): |
| c.test = 1; |
| continue; |
| |
| case O(MISC, Sparc22): |
| if (devmode != 'E') { |
| pr_err("--sparc2.2 only allowed with --examine\n"); |
| exit(2); |
| } |
| c.SparcAdjust = 1; |
| continue; |
| |
| case O(ASSEMBLE,'b'): /* here we simply set the bitmap file */ |
| case O(ASSEMBLE,Bitmap): |
| if (!optarg) { |
| pr_err("bitmap file needed with -b in --assemble mode\n"); |
| exit(2); |
| } |
| if (strcmp(optarg, "internal") == 0 || |
| strcmp(optarg, "clustered") == 0) { |
| pr_err("no need to specify --bitmap when assembling" |
| " arrays with internal or clustered bitmap\n"); |
| continue; |
| } |
| bitmap_fd = open(optarg, O_RDWR); |
| if (!*optarg || bitmap_fd < 0) { |
| pr_err("cannot open bitmap file %s: %s\n", optarg, strerror(errno)); |
| exit(2); |
| } |
| ident.bitmap_fd = bitmap_fd; /* for Assemble */ |
| continue; |
| |
| case O(ASSEMBLE, BackupFile): |
| case O(GROW, BackupFile): |
| /* Specify a file into which grow might place a backup, |
| * or from which assemble might recover a backup |
| */ |
| if (c.backup_file) { |
| pr_err("backup file already specified, rejecting %s\n", optarg); |
| exit(2); |
| } |
| c.backup_file = optarg; |
| continue; |
| |
| case O(GROW, Continue): |
| /* Continue interrupted grow |
| */ |
| grow_continue = 1; |
| continue; |
| case O(ASSEMBLE, InvalidBackup): |
| /* Acknowledge that the backupfile is invalid, but ask |
| * to continue anyway |
| */ |
| c.invalid_backup = 1; |
| continue; |
| |
| case O(BUILD,'b'): |
| case O(BUILD,Bitmap): |
| case O(CREATE,'b'): |
| case O(CREATE,Bitmap): /* here we create the bitmap */ |
| case O(GROW,'b'): |
| case O(GROW,Bitmap): |
| if (s.bitmap_file) { |
| pr_err("bitmap cannot be set twice. Second value: %s.\n", optarg); |
| exit(2); |
| } |
| if (strcmp(optarg, "internal") == 0 || |
| strcmp(optarg, "none") == 0 || |
| strchr(optarg, '/') != NULL) { |
| s.bitmap_file = optarg; |
| continue; |
| } |
| if (strcmp(optarg, "clustered") == 0) { |
| s.bitmap_file = optarg; |
| /* Set the default number of cluster nodes |
| * to 4 if not already set by user |
| */ |
| if (c.nodes < 1) |
| c.nodes = 4; |
| continue; |
| } |
| /* probable typo */ |
| pr_err("bitmap file must contain a '/', or be 'internal', or be 'clustered', or 'none'\n" |
| " not '%s'\n", optarg); |
| exit(2); |
| |
| case O(GROW,BitmapChunk): |
| case O(BUILD,BitmapChunk): |
| case O(CREATE,BitmapChunk): /* bitmap chunksize */ |
| s.bitmap_chunk = parse_size(optarg); |
| if (s.bitmap_chunk == 0 || |
| s.bitmap_chunk == INVALID_SECTORS || |
| s.bitmap_chunk & (s.bitmap_chunk - 1)) { |
| pr_err("invalid bitmap chunksize: %s\n", |
| optarg); |
| exit(2); |
| } |
| s.bitmap_chunk = s.bitmap_chunk * 512; |
| continue; |
| |
| case O(GROW, WriteBehind): |
| case O(BUILD, WriteBehind): |
| case O(CREATE, WriteBehind): /* write-behind mode */ |
| s.write_behind = DEFAULT_MAX_WRITE_BEHIND; |
| if (optarg) { |
| s.write_behind = parse_num(optarg); |
| if (s.write_behind < 0 || |
| s.write_behind > 16383) { |
| pr_err("Invalid value for maximum outstanding write-behind writes: %s.\n\tMust be between 0 and 16383.\n", optarg); |
| exit(2); |
| } |
| } |
| continue; |
| |
| case O(INCREMENTAL, 'r'): |
| case O(INCREMENTAL, RebuildMapOpt): |
| rebuild_map = 1; |
| continue; |
| case O(INCREMENTAL, IncrementalPath): |
| remove_path = optarg; |
| continue; |
| case O(CREATE, WriteJournal): |
| if (s.journaldisks) { |
| pr_err("Please specify only one journal device for the array.\n"); |
| pr_err("Ignoring --write-journal %s...\n", optarg); |
| continue; |
| } |
| dv = xmalloc(sizeof(*dv)); |
| dv->devname = optarg; |
| dv->disposition = 'j'; /* WriteJournal */ |
| dv->used = 0; |
| dv->next = NULL; |
| *devlistend = dv; |
| devlistend = &dv->next; |
| devs_found++; |
| |
| s.journaldisks = 1; |
| continue; |
| case O(CREATE, 'k'): |
| case O(GROW, 'k'): |
| s.consistency_policy = map_name(consistency_policies, |
| optarg); |
| if (s.consistency_policy < CONSISTENCY_POLICY_RESYNC) { |
| pr_err("Invalid consistency policy: %s\n", |
| optarg); |
| exit(2); |
| } |
| continue; |
| } |
| /* We have now processed all the valid options. Anything else is |
| * an error |
| */ |
| if (option_index > 0) |
| pr_err(":option --%s not valid in %s mode\n", |
| long_options[option_index].name, |
| map_num(modes, mode)); |
| else |
| pr_err("option -%c not valid in %s mode\n", |
| opt, map_num(modes, mode)); |
| exit(2); |
| |
| } |
| |
| if (print_help) { |
| char *help_text; |
| if (print_help == 2) |
| help_text = OptionHelp; |
| else |
| help_text = mode_help[mode]; |
| if (help_text == NULL) |
| help_text = Help; |
| fputs(help_text,stdout); |
| exit(0); |
| } |
| |
| if (s.journaldisks) { |
| if (s.level < 4 || s.level > 6) { |
| pr_err("--write-journal is only supported for RAID level 4/5/6.\n"); |
| exit(2); |
| } |
| if (s.consistency_policy != CONSISTENCY_POLICY_UNKNOWN && |
| s.consistency_policy != CONSISTENCY_POLICY_JOURNAL) { |
| pr_err("--write-journal is not supported with consistency policy: %s\n", |
| map_num(consistency_policies, s.consistency_policy)); |
| exit(2); |
| } |
| } |
| |
| if (mode == CREATE && |
| s.consistency_policy != CONSISTENCY_POLICY_UNKNOWN) { |
| if (s.level <= 0) { |
| pr_err("--consistency-policy not meaningful with level %s.\n", |
| map_num(pers, s.level)); |
| exit(2); |
| } else if (s.consistency_policy == CONSISTENCY_POLICY_JOURNAL && |
| !s.journaldisks) { |
| pr_err("--write-journal is required for consistency policy: %s\n", |
| map_num(consistency_policies, s.consistency_policy)); |
| exit(2); |
| } else if (s.consistency_policy == CONSISTENCY_POLICY_PPL && |
| s.level != 5) { |
| pr_err("PPL consistency policy is only supported for RAID level 5.\n"); |
| exit(2); |
| } else if (s.consistency_policy == CONSISTENCY_POLICY_BITMAP && |
| (!s.bitmap_file || |
| strcmp(s.bitmap_file, "none") == 0)) { |
| pr_err("--bitmap is required for consistency policy: %s\n", |
| map_num(consistency_policies, s.consistency_policy)); |
| exit(2); |
| } else if (s.bitmap_file && |
| strcmp(s.bitmap_file, "none") != 0 && |
| s.consistency_policy != CONSISTENCY_POLICY_BITMAP && |
| s.consistency_policy != CONSISTENCY_POLICY_JOURNAL) { |
| pr_err("--bitmap is not compatible with consistency policy: %s\n", |
| map_num(consistency_policies, s.consistency_policy)); |
| exit(2); |
| } |
| } |
| |
| if (!mode && devs_found) { |
| mode = MISC; |
| devmode = 'Q'; |
| if (devlist->disposition == 0) |
| devlist->disposition = devmode; |
| } |
| if (!mode) { |
| fputs(Usage, stderr); |
| exit(2); |
| } |
| |
| if (symlinks) { |
| struct createinfo *ci = conf_get_create_info(); |
| |
| if (strcasecmp(symlinks, "yes") == 0) |
| ci->symlinks = 1; |
| else if (strcasecmp(symlinks, "no") == 0) |
| ci->symlinks = 0; |
| else { |
| pr_err("option --symlinks must be 'no' or 'yes'\n"); |
| exit(2); |
| } |
| } |
| /* Ok, got the option parsing out of the way |
| * hopefully it's mostly right but there might be some stuff |
| * missing |
| * |
| * That is mostly checked in the per-mode stuff but... |
| * |
| * For @,B,C and A without -s, the first device listed must be |
| * an md device. We check that here and open it. |
| */ |
| |
| if (mode == MANAGE || mode == BUILD || mode == CREATE || |
| mode == GROW || (mode == ASSEMBLE && ! c.scan)) { |
| if (devs_found < 1) { |
| pr_err("an md device must be given in this mode\n"); |
| exit(2); |
| } |
| if ((int)ident.super_minor == -2 && c.autof) { |
| pr_err("--super-minor=dev is incompatible with --auto\n"); |
| exit(2); |
| } |
| if (mode == MANAGE || mode == GROW) { |
| mdfd = open_mddev(devlist->devname, 1); |
| if (mdfd < 0) |
| exit(1); |
| } else |
| /* non-existent device is OK */ |
| mdfd = open_mddev(devlist->devname, 0); |
| if (mdfd == -2) { |
| pr_err("device %s exists but is not an md array.\n", devlist->devname); |
| exit(1); |
| } |
| if ((int)ident.super_minor == -2) { |
| struct stat stb; |
| if (mdfd < 0) { |
| pr_err("--super-minor=dev given, and listed device %s doesn't exist.\n", |
| devlist->devname); |
| exit(1); |
| } |
| fstat(mdfd, &stb); |
| ident.super_minor = minor(stb.st_rdev); |
| } |
| if (mdfd >= 0 && mode != MANAGE && mode != GROW) { |
| /* We don't really want this open yet, we just might |
| * have wanted to check some things |
| */ |
| close(mdfd); |
| mdfd = -1; |
| } |
| } |
| |
| if (s.raiddisks) { |
| if (s.raiddisks == 1 && !c.force && s.level != LEVEL_FAULTY) { |
| pr_err("'1' is an unusual number of drives for an array, so it is probably\n" |
| " a mistake. If you really mean it you will need to specify --force before\n" |
| " setting the number of drives.\n"); |
| exit(2); |
| } |
| } |
| |
| if (c.homehost == NULL && c.require_homehost) |
| c.homehost = conf_get_homehost(&c.require_homehost); |
| if (c.homehost == NULL || strcasecmp(c.homehost, "<system>") == 0) { |
| if (gethostname(sys_hostname, sizeof(sys_hostname)) == 0) { |
| sys_hostname[sizeof(sys_hostname)-1] = 0; |
| c.homehost = sys_hostname; |
| } |
| } |
| if (c.homehost && |
| (!c.homehost[0] || strcasecmp(c.homehost, "<none>") == 0)) { |
| c.homehost = NULL; |
| c.require_homehost = 0; |
| } |
| |
| rv = 0; |
| |
| set_hooks(); /* set hooks from libs */ |
| |
| if (c.homecluster == NULL && (c.nodes > 0)) { |
| c.homecluster = conf_get_homecluster(); |
| if (c.homecluster == NULL) |
| rv = get_cluster_name(&c.homecluster); |
| if (rv) { |
| pr_err("The md can't get cluster name\n"); |
| exit(1); |
| } |
| } |
| |
| if (c.update && strcmp(c.update, "nodes") == 0 && c.nodes == 0) { |
| pr_err("Please specify nodes number with --nodes\n"); |
| exit(1); |
| } |
| |
| if (c.backup_file && data_offset != INVALID_SECTORS) { |
| pr_err("--backup-file and --data-offset are incompatible\n"); |
| exit(2); |
| } |
| |
| if ((mode == MISC && devmode == 'E') || |
| (mode == MONITOR && spare_sharing == 0)) |
| /* Anyone may try this */; |
| else if (geteuid() != 0) { |
| pr_err("must be super-user to perform this action\n"); |
| exit(1); |
| } |
| |
| ident.autof = c.autof; |
| |
| if (c.scan && c.verbose < 2) |
| /* --scan implied --brief unless -vv */ |
| c.brief = 1; |
| |
| if (mode == CREATE) { |
| if (s.bitmap_file && strcmp(s.bitmap_file, "clustered") == 0) { |
| locked = cluster_get_dlmlock(); |
| if (locked != 1) |
| exit(1); |
| } |
| } else if (mode == MANAGE || mode == GROW || mode == INCREMENTAL) { |
| if (!md_get_array_info(mdfd, &array) && (devmode != 'c')) { |
| if (array.state & (1 << MD_SB_CLUSTERED)) { |
| locked = cluster_get_dlmlock(); |
| if (locked != 1) |
| exit(1); |
| } |
| } |
| } |
| |
| switch(mode) { |
| case MANAGE: |
| /* readonly, add/remove, readwrite, runstop */ |
| if (c.readonly > 0) |
| rv = Manage_ro(devlist->devname, mdfd, c.readonly); |
| if (!rv && devs_found>1) |
| rv = Manage_subdevs(devlist->devname, mdfd, |
| devlist->next, c.verbose, c.test, |
| c.update, c.force); |
| if (!rv && c.readonly < 0) |
| rv = Manage_ro(devlist->devname, mdfd, c.readonly); |
| if (!rv && c.runstop > 0) |
| rv = Manage_run(devlist->devname, mdfd, &c); |
| if (!rv && c.runstop < 0) |
| rv = Manage_stop(devlist->devname, mdfd, c.verbose, 0); |
| break; |
| case ASSEMBLE: |
| if (!c.scan && c.runstop == -1) { |
| pr_err("--no-degraded not meaningful without a --scan assembly.\n"); |
| exit(1); |
| } else if (devs_found == 1 && ident.uuid_set == 0 && |
| ident.super_minor == UnSet && ident.name[0] == 0 && |
| !c.scan) { |
| /* Only a device has been given, so get details from config file */ |
| struct mddev_ident *array_ident = conf_get_ident(devlist->devname); |
| if (array_ident == NULL) { |
| pr_err("%s not identified in config file.\n", |
| devlist->devname); |
| rv |= 1; |
| if (mdfd >= 0) |
| close(mdfd); |
| } else { |
| if (array_ident->autof == 0) |
| array_ident->autof = c.autof; |
| rv |= Assemble(ss, devlist->devname, array_ident, |
| NULL, &c); |
| } |
| } else if (!c.scan) |
| rv = Assemble(ss, devlist->devname, &ident, |
| devlist->next, &c); |
| else if (devs_found > 0) { |
| if (c.update && devs_found > 1) { |
| pr_err("can only update a single array at a time\n"); |
| exit(1); |
| } |
| if (c.backup_file && devs_found > 1) { |
| pr_err("can only assemble a single array when providing a backup file.\n"); |
| exit(1); |
| } |
| for (dv = devlist; dv; dv = dv->next) { |
| struct mddev_ident *array_ident = conf_get_ident(dv->devname); |
| if (array_ident == NULL) { |
| pr_err("%s not identified in config file.\n", |
| dv->devname); |
| rv |= 1; |
| continue; |
| } |
| if (array_ident->autof == 0) |
| array_ident->autof = c.autof; |
| rv |= Assemble(ss, dv->devname, array_ident, |
| NULL, &c); |
| } |
| } else { |
| if (c.update) { |
| pr_err("--update not meaningful with a --scan assembly.\n"); |
| exit(1); |
| } |
| if (c.backup_file) { |
| pr_err("--backup_file not meaningful with a --scan assembly.\n"); |
| exit(1); |
| } |
| rv = scan_assemble(ss, &c, &ident); |
| } |
| |
| break; |
| case BUILD: |
| if (c.delay == 0) |
| c.delay = DEFAULT_BITMAP_DELAY; |
| if (s.write_behind && !s.bitmap_file) { |
| pr_err("write-behind mode requires a bitmap.\n"); |
| rv = 1; |
| break; |
| } |
| if (s.raiddisks == 0) { |
| pr_err("no raid-devices specified.\n"); |
| rv = 1; |
| break; |
| } |
| |
| if (s.bitmap_file) { |
| if (strcmp(s.bitmap_file, "internal") == 0 || |
| strcmp(s.bitmap_file, "clustered") == 0) { |
| pr_err("'internal' and 'clustered' bitmaps not supported with --build\n"); |
| rv |= 1; |
| break; |
| } |
| } |
| rv = Build(devlist->devname, devlist->next, &s, &c); |
| break; |
| case CREATE: |
| if (c.delay == 0) |
| c.delay = DEFAULT_BITMAP_DELAY; |
| |
| if (c.nodes) { |
| if (!s.bitmap_file || |
| strcmp(s.bitmap_file, "clustered") != 0) { |
| pr_err("--nodes argument only compatible with --bitmap=clustered\n"); |
| rv = 1; |
| break; |
| } |
| |
| if (s.level != 1 && s.level != 10) { |
| pr_err("--bitmap=clustered is currently supported with raid1/10 only\n"); |
| rv = 1; |
| break; |
| } |
| if (s.level == 10 && !(is_near_layout_10(s.layout) || s.layout == UnSet)) { |
| pr_err("only near layout is supported with clustered raid10\n"); |
| rv = 1; |
| break; |
| } |
| } |
| |
| if (s.write_behind && !s.bitmap_file) { |
| pr_err("write-behind mode requires a bitmap.\n"); |
| rv = 1; |
| break; |
| } |
| if (s.raiddisks == 0) { |
| pr_err("no raid-devices specified.\n"); |
| rv = 1; |
| break; |
| } |
| |
| rv = Create(ss, devlist->devname, |
| ident.name, ident.uuid_set ? ident.uuid : NULL, |
| devs_found-1, devlist->next, |
| &s, &c, data_offset); |
| break; |
| case MISC: |
| if (devmode == 'E') { |
| if (devlist == NULL && !c.scan) { |
| pr_err("No devices to examine\n"); |
| exit(2); |
| } |
| if (devlist == NULL) |
| devlist = conf_get_devs(); |
| if (devlist == NULL) { |
| pr_err("No devices listed in %s\n", configfile?configfile:DefaultConfFile); |
| exit(1); |
| } |
| rv = Examine(devlist, &c, ss); |
| } else if (devmode == DetailPlatform) { |
| rv = Detail_Platform(ss ? ss->ss : NULL, ss ? c.scan : 1, |
| c.verbose, c.export, |
| devlist ? devlist->devname : NULL); |
| } else if (devlist == NULL) { |
| if (devmode == 'S' && c.scan) |
| rv = stop_scan(c.verbose); |
| else if ((devmode == 'D' || devmode == Waitclean) && |
| c.scan) |
| rv = misc_scan(devmode, &c); |
| else if (devmode == UdevRules) |
| rv = Write_rules(udev_filename); |
| else { |
| pr_err("No devices given.\n"); |
| exit(2); |
| } |
| } else |
| rv = misc_list(devlist, &ident, dump_directory, ss, &c); |
| break; |
| case MONITOR: |
| if (!devlist && !c.scan) { |
| pr_err("Cannot monitor: need --scan or at least one device\n"); |
| rv = 1; |
| break; |
| } |
| if (pidfile && !daemonise) { |
| pr_err("Cannot write a pid file when not in daemon mode\n"); |
| rv = 1; |
| break; |
| } |
| if (c.delay == 0) { |
| if (get_linux_version() > 2006016) |
| /* mdstat responds to poll */ |
| c.delay = 1000; |
| else |
| c.delay = 60; |
| } |
| rv = Monitor(devlist, mailaddr, program, |
| &c, daemonise, oneshot, |
| dosyslog, pidfile, increments, |
| spare_sharing); |
| break; |
| |
| case GROW: |
| if (array_size > 0) { |
| /* alway impose array size first, independent of |
| * anything else |
| * Do not allow level or raid_disks changes at the |
| * same time as that can be irreversibly destructive. |
| */ |
| struct mdinfo sra; |
| int err; |
| if (s.raiddisks || s.level != UnSet) { |
| pr_err("cannot change array size in same operation as changing raiddisks or level.\n" |
| " Change size first, then check that data is still intact.\n"); |
| rv = 1; |
| break; |
| } |
| if (sysfs_init(&sra, mdfd, NULL)) { |
| rv = 1; |
| break; |
| } |
| if (array_size == MAX_SIZE) |
| err = sysfs_set_str(&sra, NULL, "array_size", "default"); |
| else |
| err = sysfs_set_num(&sra, NULL, "array_size", array_size / 2); |
| if (err < 0) { |
| if (errno == E2BIG) |
| pr_err("--array-size setting is too large.\n"); |
| else |
| pr_err("current kernel does not support setting --array-size\n"); |
| rv = 1; |
| break; |
| } |
| } |
| if (devs_found > 1 && s.raiddisks == 0 && s.level == UnSet) { |
| /* must be '-a'. */ |
| if (s.size > 0 || s.chunk || |
| s.layout_str || s.bitmap_file) { |
| pr_err("--add cannot be used with other geometry changes in --grow mode\n"); |
| rv = 1; |
| break; |
| } |
| for (dv = devlist->next; dv; dv = dv->next) { |
| rv = Grow_Add_device(devlist->devname, mdfd, |
| dv->devname); |
| if (rv) |
| break; |
| } |
| } else if (s.bitmap_file) { |
| if (s.size > 0 || s.raiddisks || s.chunk || |
| s.layout_str || devs_found > 1) { |
| pr_err("--bitmap changes cannot be used with other geometry changes in --grow mode\n"); |
| rv = 1; |
| break; |
| } |
| if (c.delay == 0) |
| c.delay = DEFAULT_BITMAP_DELAY; |
| rv = Grow_addbitmap(devlist->devname, mdfd, &c, &s); |
| } else if (grow_continue) |
| rv = Grow_continue_command(devlist->devname, |
| mdfd, c.backup_file, |
| c.verbose); |
| else if (s.size > 0 || s.raiddisks || s.layout_str || |
| s.chunk != 0 || s.level != UnSet || |
| data_offset != INVALID_SECTORS) { |
| rv = Grow_reshape(devlist->devname, mdfd, |
| devlist->next, |
| data_offset, &c, &s); |
| } else if (s.consistency_policy != CONSISTENCY_POLICY_UNKNOWN) { |
| rv = Grow_consistency_policy(devlist->devname, mdfd, &c, &s); |
| } else if (array_size == 0) |
| pr_err("no changes to --grow\n"); |
| break; |
| case INCREMENTAL: |
| if (rebuild_map) { |
| RebuildMap(); |
| } |
| if (c.scan) { |
| rv = 1; |
| if (devlist) { |
| pr_err("In --incremental mode, a device cannot be given with --scan.\n"); |
| break; |
| } |
| if (c.runstop <= 0) { |
| pr_err("--incremental --scan meaningless without --run.\n"); |
| break; |
| } |
| if (devmode == 'f') { |
| pr_err("--incremental --scan --fail not supported.\n"); |
| break; |
| } |
| rv = IncrementalScan(&c, NULL); |
| } |
| if (!devlist) { |
| if (!rebuild_map && !c.scan) { |
| pr_err("--incremental requires a device.\n"); |
| rv = 1; |
| } |
| break; |
| } |
| if (devmode == 'f') { |
| if (devlist->next) { |
| pr_err("'--incremental --fail' can only handle one device.\n"); |
| rv = 1; |
| break; |
| } |
| rv = IncrementalRemove(devlist->devname, remove_path, |
| c.verbose); |
| } else |
| rv = Incremental(devlist, &c, ss); |
| break; |
| case AUTODETECT: |
| autodetect(); |
| break; |
| } |
| if (locked) |
| cluster_release_dlmlock(); |
| if (mdfd > 0) |
| close(mdfd); |
| exit(rv); |
| } |
| |
| static int scan_assemble(struct supertype *ss, |
| struct context *c, |
| struct mddev_ident *ident) |
| { |
| struct mddev_ident *a, *array_list = conf_get_ident(NULL); |
| struct mddev_dev *devlist = conf_get_devs(); |
| struct map_ent *map = NULL; |
| int cnt = 0; |
| int rv = 0; |
| int failures, successes; |
| |
| if (conf_verify_devnames(array_list)) { |
| pr_err("Duplicate MD device names in conf file were found.\n"); |
| return 1; |
| } |
| if (devlist == NULL) { |
| pr_err("No devices listed in conf file were found.\n"); |
| return 1; |
| } |
| for (a = array_list; a; a = a->next) { |
| a->assembled = 0; |
| if (a->autof == 0) |
| a->autof = c->autof; |
| } |
| if (map_lock(&map)) |
| pr_err("failed to get exclusive lock on mapfile\n"); |
| do { |
| failures = 0; |
| successes = 0; |
| rv = 0; |
| for (a = array_list; a; a = a->next) { |
| int r; |
| if (a->assembled) |
| continue; |
| if (a->devname && |
| strcasecmp(a->devname, "<ignore>") == 0) |
| continue; |
| |
| r = Assemble(ss, a->devname, |
| a, NULL, c); |
| if (r == 0) { |
| a->assembled = 1; |
| successes++; |
| } else |
| failures++; |
| rv |= r; |
| cnt++; |
| } |
| } while (failures && successes); |
| if (c->homehost && cnt == 0) { |
| /* Maybe we can auto-assemble something. |
| * Repeatedly call Assemble in auto-assemble mode |
| * until it fails |
| */ |
| int rv2; |
| int acnt; |
| ident->autof = c->autof; |
| do { |
| struct mddev_dev *devlist = conf_get_devs(); |
| acnt = 0; |
| do { |
| rv2 = Assemble(ss, NULL, |
| ident, |
| devlist, c); |
| if (rv2 == 0) { |
| cnt++; |
| acnt++; |
| } |
| } while (rv2 != 2); |
| /* Incase there are stacked devices, we need to go around again */ |
| } while (acnt); |
| if (cnt == 0 && rv == 0) { |
| pr_err("No arrays found in config file or automatically\n"); |
| rv = 1; |
| } else if (cnt) |
| rv = 0; |
| } else if (cnt == 0 && rv == 0) { |
| pr_err("No arrays found in config file\n"); |
| rv = 1; |
| } |
| map_unlock(&map); |
| return rv; |
| } |
| |
| static int misc_scan(char devmode, struct context *c) |
| { |
| /* apply --detail or --wait-clean to |
| * all devices in /proc/mdstat |
| */ |
| struct mdstat_ent *ms = mdstat_read(0, 1); |
| struct mdstat_ent *e; |
| struct map_ent *map = NULL; |
| int members; |
| int rv = 0; |
| |
| for (members = 0; members <= 1; members++) { |
| for (e = ms; e; e = e->next) { |
| char *name = NULL; |
| struct map_ent *me; |
| struct stat stb; |
| int member = e->metadata_version && |
| strncmp(e->metadata_version, |
| "external:/", 10) == 0; |
| if (members != member) |
| continue; |
| me = map_by_devnm(&map, e->devnm); |
| if (me && me->path && strcmp(me->path, "/unknown") != 0) |
| name = me->path; |
| if (name == NULL || stat(name, &stb) != 0) |
| name = get_md_name(e->devnm); |
| |
| if (!name) { |
| pr_err("cannot find device file for %s\n", |
| e->devnm); |
| continue; |
| } |
| if (devmode == 'D') |
| rv |= Detail(name, c); |
| else |
| rv |= WaitClean(name, c->verbose); |
| put_md_name(name); |
| map_free(map); |
| map = NULL; |
| } |
| } |
| free_mdstat(ms); |
| return rv; |
| } |
| |
| static int stop_scan(int verbose) |
| { |
| /* apply --stop to all devices in /proc/mdstat */ |
| /* Due to possible stacking of devices, repeat until |
| * nothing more can be stopped |
| */ |
| int progress = 1, err; |
| int last = 0; |
| int rv = 0; |
| do { |
| struct mdstat_ent *ms = mdstat_read(0, 0); |
| struct mdstat_ent *e; |
| |
| if (!progress) last = 1; |
| progress = 0; err = 0; |
| for (e = ms; e; e = e->next) { |
| char *name = get_md_name(e->devnm); |
| int mdfd; |
| |
| if (!name) { |
| pr_err("cannot find device file for %s\n", |
| e->devnm); |
| continue; |
| } |
| mdfd = open_mddev(name, 1); |
| if (mdfd >= 0) { |
| if (Manage_stop(name, mdfd, verbose, !last)) |
| err = 1; |
| else |
| progress = 1; |
| close(mdfd); |
| } |
| |
| put_md_name(name); |
| } |
| free_mdstat(ms); |
| } while (!last && err); |
| if (err) |
| rv |= 1; |
| return rv; |
| } |
| |
| static int misc_list(struct mddev_dev *devlist, |
| struct mddev_ident *ident, |
| char *dump_directory, |
| struct supertype *ss, struct context *c) |
| { |
| struct mddev_dev *dv; |
| int rv = 0; |
| |
| for (dv = devlist; dv; dv = (rv & 16) ? NULL : dv->next) { |
| int mdfd = -1; |
| |
| switch(dv->disposition) { |
| case 'D': |
| rv |= Detail(dv->devname, c); |
| continue; |
| case KillOpt: /* Zero superblock */ |
| if (ss) |
| rv |= Kill(dv->devname, ss, c->force, c->verbose,0); |
| else { |
| int v = c->verbose; |
| do { |
| rv |= Kill(dv->devname, NULL, c->force, v, 0); |
| v = -1; |
| } while (rv == 0); |
| rv &= ~4; |
| } |
| continue; |
| case 'Q': |
| rv |= Query(dv->devname); |
| continue; |
| case 'X': |
| rv |= ExamineBitmap(dv->devname, c->brief, ss); |
| continue; |
| case ExamineBB: |
| rv |= ExamineBadblocks(dv->devname, c->brief, ss); |
| continue; |
| case 'W': |
| case WaitOpt: |
| rv |= Wait(dv->devname); |
| continue; |
| case Waitclean: |
| rv |= WaitClean(dv->devname, c->verbose); |
| continue; |
| case KillSubarray: |
| rv |= Kill_subarray(dv->devname, c->subarray, c->verbose); |
| continue; |
| case UpdateSubarray: |
| if (c->update == NULL) { |
| pr_err("-U/--update must be specified with --update-subarray\n"); |
| rv |= 1; |
| continue; |
| } |
| rv |= Update_subarray(dv->devname, c->subarray, |
| c->update, ident, c->verbose); |
| continue; |
| case Dump: |
| rv |= Dump_metadata(dv->devname, dump_directory, c, ss); |
| continue; |
| case Restore: |
| rv |= Restore_metadata(dv->devname, dump_directory, c, ss, |
| (dv == devlist && dv->next == NULL)); |
| continue; |
| case Action: |
| rv |= SetAction(dv->devname, c->action); |
| continue; |
| } |
| |
| if (dv->devname[0] != '/') |
| mdfd = open_dev(dv->devname); |
| if (dv->devname[0] == '/' || mdfd < 0) |
| mdfd = open_mddev(dv->devname, 1); |
| |
| if (mdfd >= 0) { |
| switch(dv->disposition) { |
| case 'R': |
| c->runstop = 1; |
| rv |= Manage_run(dv->devname, mdfd, c); |
| break; |
| case 'S': |
| rv |= Manage_stop(dv->devname, mdfd, c->verbose, 0); |
| break; |
| case 'o': |
| rv |= Manage_ro(dv->devname, mdfd, 1); |
| break; |
| case 'w': |
| rv |= Manage_ro(dv->devname, mdfd, -1); |
| break; |
| } |
| close(mdfd); |
| } else |
| rv |= 1; |
| } |
| return rv; |
| } |
| |
| int SetAction(char *dev, char *action) |
| { |
| int fd = open(dev, O_RDONLY); |
| struct mdinfo mdi; |
| int retval; |
| |
| if (fd < 0) { |
| pr_err("Couldn't open %s: %s\n", dev, strerror(errno)); |
| return 1; |
| } |
| retval = sysfs_init(&mdi, fd, NULL); |
| close(fd); |
| if (retval) { |
| pr_err("%s is no an md array\n", dev); |
| return 1; |
| } |
| |
| if (sysfs_set_str(&mdi, NULL, "sync_action", action) < 0) { |
| pr_err("Count not set action for %s to %s: %s\n", |
| dev, action, strerror(errno)); |
| return 1; |
| } |
| return 0; |
| } |