| /* |
| * mdadm - manage Linux "md" devices aka RAID arrays. |
| * |
| * Copyright (C) 2001-2006 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@cse.unsw.edu.au> |
| * Paper: Neil Brown |
| * School of Computer Science and Engineering |
| * The University of New South Wales |
| * Sydney, 2052 |
| * Australia |
| * |
| * 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> |
| |
| |
| int main(int argc, char *argv[]) |
| { |
| int mode = 0; |
| int opt; |
| int option_index; |
| char *c; |
| int rv; |
| int i; |
| |
| int chunk = 0; |
| long long size = -1; |
| unsigned long reserve_space = 0; |
| int level = UnSet; |
| int layout = UnSet; |
| int raiddisks = 0; |
| int max_disks = MD_SB_DISKS; /* just a default */ |
| int sparedisks = 0; |
| struct mddev_ident_s ident; |
| char *configfile = NULL; |
| char *cp; |
| char *update = NULL; |
| int scan = 0; |
| char devmode = 0; |
| int runstop = 0; |
| int readonly = 0; |
| int write_behind = 0; |
| int bitmap_fd = -1; |
| char *bitmap_file = NULL; |
| char *backup_file = NULL; |
| int bitmap_chunk = UnSet; |
| int SparcAdjust = 0; |
| mddev_dev_t devlist = NULL; |
| mddev_dev_t *devlistend = & devlist; |
| mddev_dev_t dv; |
| int devs_found = 0; |
| int verbose = 0; |
| int quiet = 0; |
| int brief = 0; |
| int force = 0; |
| int test = 0; |
| int export = 0; |
| int assume_clean = 0; |
| char *symlinks = NULL; |
| /* 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) |
| */ |
| int autof = 0; |
| |
| char *homehost = NULL; |
| char sys_hostname[256]; |
| char *mailaddr = NULL; |
| char *program = NULL; |
| int delay = 0; |
| int daemonise = 0; |
| char *pidfile = NULL; |
| int oneshot = 0; |
| struct supertype *ss = NULL; |
| int writemostly = 0; |
| int re_add = 0; |
| char *shortopt = short_options; |
| int dosyslog = 0; |
| int rebuild_map = 0; |
| int auto_update_home = 0; |
| |
| int copies; |
| int print_help = 0; |
| FILE *outf; |
| |
| int mdfd = -1; |
| |
| 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; |
| |
| while ((option_index = -1) , |
| (opt=getopt_long(argc, argv, |
| shortopt, long_options, |
| &option_index)) != -1) { |
| int newmode = mode; |
| /* firstly, some mode-independant options */ |
| switch(opt) { |
| case 'h': |
| if (option_index > 0 && |
| strcmp(long_options[option_index].name, "help-options")==0) |
| print_help = 2; |
| else |
| print_help = 1; |
| continue; |
| |
| case 'V': |
| fputs(Version, stderr); |
| exit(0); |
| |
| case 'v': verbose++; |
| continue; |
| |
| case 'q': quiet++; |
| continue; |
| |
| case 'b': |
| if (mode == ASSEMBLE || mode == BUILD || mode == CREATE || mode == GROW) |
| break; /* b means bitmap */ |
| brief = 1; |
| if (optarg) { |
| fprintf(stderr, Name ": -b cannot have any extra immediately after it, sorry.\n"); |
| exit(2); |
| } |
| continue; |
| |
| case 'Y': export++; |
| continue; |
| |
| case HomeHost: |
| homehost = optarg; |
| 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 '@': /* just incase they say --manage */ |
| newmode = MANAGE; |
| shortopt = short_bitmap_options; |
| break; |
| case 'a': |
| case 'r': |
| case 'f': |
| case ReAdd: /* re-add */ |
| 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 '#': |
| case 'D': |
| case 'E': |
| case 'X': |
| case 'Q': newmode = MISC; break; |
| case 'R': |
| case 'S': |
| case 'o': |
| case 'w': |
| case 'W': |
| case 'K': if (!mode) newmode = MISC; break; |
| } |
| if (mode && newmode == mode) { |
| /* everybody happy ! */ |
| } else if (mode && newmode != mode) { |
| /* not allowed.. */ |
| fprintf(stderr, Name ": "); |
| 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; |
| } else { |
| /* special case of -c --help */ |
| if (opt == 'c' && |
| ( 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 = malloc(sizeof(*dv)); |
| if (dv == NULL) { |
| fprintf(stderr, Name ": malloc failed\n"); |
| exit(3); |
| } |
| dv->devname = optarg; |
| dv->disposition = devmode; |
| dv->writemostly = writemostly; |
| dv->re_add = re_add; |
| dv->used = 0; |
| dv->next = NULL; |
| *devlistend = dv; |
| devlistend = &dv->next; |
| |
| devs_found++; |
| continue; |
| } |
| /* No mode yet, and this is the second device ... */ |
| fprintf(stderr, Name ": An option must be given to set the mode before a second device is listed\n"); |
| exit(2); |
| } |
| if (option_index >= 0) |
| fprintf(stderr, Name ": --%s", long_options[option_index].name); |
| else |
| fprintf(stderr, Name ": -%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 '@': |
| case '#': |
| 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 && mode == '@' && !devmode) { |
| fprintf(stderr, Name ": Must give one of -a/-r/-f for subsequent devices at %s\n", optarg); |
| exit(2); |
| } |
| if (devs_found > 0 && mode == 'G' && !devmode) { |
| fprintf(stderr, Name ": Must give one of -a for devices do add: %s\n", optarg); |
| exit(2); |
| } |
| dv = malloc(sizeof(*dv)); |
| if (dv == NULL) { |
| fprintf(stderr, Name ": malloc failed\n"); |
| exit(3); |
| } |
| dv->devname = optarg; |
| dv->disposition = devmode; |
| dv->writemostly = writemostly; |
| dv->re_add = re_add; |
| 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<<8)|b) |
| switch (O(mode,opt)) { |
| case O(CREATE,'c'): |
| case O(BUILD,'c'): /* chunk or rounding */ |
| if (chunk) { |
| fprintf(stderr, Name ": chunk/rounding may only be specified once. " |
| "Second value is %s.\n", optarg); |
| exit(2); |
| } |
| chunk = strtol(optarg, &c, 10); |
| if (!optarg[0] || *c || chunk<4 || ((chunk-1)&chunk)) { |
| fprintf(stderr, Name ": invalid chunk/rounding value: %s\n", |
| optarg); |
| exit(2); |
| } |
| continue; |
| |
| case O(ASSEMBLE,AutoHomeHost): |
| auto_update_home = 1; |
| continue; |
| case O(INCREMENTAL, 'e'): |
| case O(CREATE,'e'): |
| case O(ASSEMBLE,'e'): |
| case O(MISC,'e'): /* set metadata (superblock) information */ |
| if (ss) { |
| fprintf(stderr, Name ": metadata information already given\n"); |
| exit(2); |
| } |
| for(i=0; !ss && superlist[i]; i++) |
| ss = superlist[i]->match_metadata_desc(optarg); |
| |
| if (!ss) { |
| fprintf(stderr, Name ": unrecognised metadata identifier: %s\n", optarg); |
| exit(2); |
| } |
| max_disks = ss->max_devs; |
| continue; |
| |
| case O(MANAGE,'W'): |
| case O(BUILD,'W'): |
| case O(CREATE,'W'): |
| /* set write-mostly for following devices */ |
| writemostly = 1; |
| continue; |
| |
| case O(MANAGE,'w'): |
| /* clear write-mostly for following devices */ |
| writemostly = 2; |
| continue; |
| |
| |
| case O(GROW,'z'): |
| case O(CREATE,'z'): |
| case O(BUILD,'z'): /* size */ |
| if (size >= 0) { |
| fprintf(stderr, Name ": size may only be specified once. " |
| "Second value is %s.\n", optarg); |
| exit(2); |
| } |
| if (strcmp(optarg, "max")==0) |
| size = 0; |
| else { |
| size = strtoll(optarg, &c, 10); |
| if (!optarg[0] || *c || size < 4) { |
| fprintf(stderr, Name ": invalid size: %s\n", |
| optarg); |
| exit(2); |
| } |
| } |
| continue; |
| |
| case O(GROW,'l'): /* hack - needed to understand layout */ |
| case O(CREATE,'l'): |
| case O(BUILD,'l'): /* set raid level*/ |
| if (level != UnSet) { |
| fprintf(stderr, Name ": raid level may only be set once. " |
| "Second value is %s.\n", optarg); |
| exit(2); |
| } |
| level = map_name(pers, optarg); |
| if (level == UnSet) { |
| fprintf(stderr, Name ": invalid raid level: %s\n", |
| optarg); |
| exit(2); |
| } |
| if (level != 0 && level != -1 && level != 1 && level != -4 && level != -5 && mode == BUILD) { |
| fprintf(stderr, Name ": Raid level %s not permitted with --build.\n", |
| optarg); |
| exit(2); |
| } |
| if (sparedisks > 0 && level < 1 && level >= -1) { |
| fprintf(stderr, Name ": raid level %s is incompatible with spare-devices setting.\n", |
| optarg); |
| exit(2); |
| } |
| ident.level = level; |
| continue; |
| |
| case O(CREATE,'p'): /* raid5 layout */ |
| case O(BUILD,'p'): /* faulty layout */ |
| case O(GROW, 'p'): /* faulty reconfig */ |
| if (layout != UnSet) { |
| fprintf(stderr,Name ": layout may only be sent once. " |
| "Second value was %s\n", optarg); |
| exit(2); |
| } |
| switch(level) { |
| default: |
| fprintf(stderr, Name ": layout not meaningful for %s arrays.\n", |
| map_num(pers, level)); |
| exit(2); |
| case UnSet: |
| fprintf(stderr, Name ": raid level must be given before layout.\n"); |
| exit(2); |
| |
| case 5: |
| case 6: |
| layout = map_name(r5layout, optarg); |
| if (layout==UnSet) { |
| fprintf(stderr, Name ": layout %s not understood for raid5.\n", |
| optarg); |
| exit(2); |
| } |
| break; |
| |
| case 10: |
| /* 'f', 'o' or 'n' followed by a number <= raid_disks */ |
| if ((optarg[0] != 'n' && optarg[0] != 'f' && optarg[0] != 'o') || |
| (copies = strtoul(optarg+1, &cp, 10)) < 1 || |
| copies > 200 || |
| *cp) { |
| fprintf(stderr, Name ": layout for raid10 must be 'nNN', 'oNN' or 'fNN' where NN is a number, not %s\n", optarg); |
| exit(2); |
| } |
| if (optarg[0] == 'n') |
| layout = 256 + copies; |
| else if (optarg[0] == 'o') |
| layout = 0x10000 + (copies<<8) + 1; |
| else |
| layout = 1 + (copies<<8); |
| break; |
| case -5: /* Faulty |
| * modeNNN |
| */ |
| |
| { |
| int ln = strcspn(optarg, "0123456789"); |
| char *m = strdup(optarg); |
| int mode; |
| m[ln] = 0; |
| mode = map_name(faultylayout, m); |
| if (mode == UnSet) { |
| fprintf(stderr, Name ": layout %s not understood for faulty.\n", |
| optarg); |
| exit(2); |
| } |
| layout = mode | (atoi(optarg+ln)<< ModeShift); |
| } |
| } |
| continue; |
| |
| case O(CREATE,AssumeClean): |
| case O(BUILD,AssumeClean): /* assume clean */ |
| assume_clean = 1; |
| continue; |
| |
| case O(GROW,'n'): |
| case O(CREATE,'n'): |
| case O(BUILD,'n'): /* number of raid disks */ |
| if (raiddisks) { |
| fprintf(stderr, Name ": raid-devices set twice: %d and %s\n", |
| raiddisks, optarg); |
| exit(2); |
| } |
| raiddisks = strtol(optarg, &c, 10); |
| if (!optarg[0] || *c || raiddisks<=0) { |
| fprintf(stderr, Name ": invalid number of raid devices: %s\n", |
| optarg); |
| exit(2); |
| } |
| ident.raid_disks = raiddisks; |
| continue; |
| |
| case O(CREATE,'x'): /* number of spare (eXtra) discs */ |
| if (sparedisks) { |
| fprintf(stderr,Name ": spare-devices set twice: %d and %s\n", |
| sparedisks, optarg); |
| exit(2); |
| } |
| if (level != UnSet && level <= 0 && level >= -1) { |
| fprintf(stderr, Name ": spare-devices setting is incompatible with raid level %d\n", |
| level); |
| exit(2); |
| } |
| sparedisks = strtol(optarg, &c, 10); |
| if (!optarg[0] || *c || sparedisks < 0) { |
| fprintf(stderr, Name ": invalid number of spare-devices: %s\n", |
| optarg); |
| exit(2); |
| } |
| continue; |
| |
| case O(CREATE,'a'): |
| case O(BUILD,'a'): |
| case O(INCREMENTAL,'a'): |
| case O(ASSEMBLE,'a'): /* auto-creation of device node */ |
| 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(GROW,'f'): /* ditto */ |
| case O(CREATE,'f'): /* force honouring of device list */ |
| case O(ASSEMBLE,'f'): /* force assembly */ |
| case O(MISC,'f'): /* force zero */ |
| force=1; |
| continue; |
| |
| /* now for the Assemble options */ |
| case O(CREATE,'u'): /* uuid of array */ |
| case O(ASSEMBLE,'u'): /* uuid of array */ |
| if (ident.uuid_set) { |
| fprintf(stderr, Name ": uuid cannot be set twice. " |
| "Second value %s.\n", optarg); |
| exit(2); |
| } |
| if (parse_uuid(optarg, ident.uuid)) |
| ident.uuid_set = 1; |
| else { |
| fprintf(stderr,Name ": Bad uuid: %s\n", optarg); |
| exit(2); |
| } |
| continue; |
| |
| case O(CREATE,'N'): |
| case O(ASSEMBLE,'N'): |
| if (ident.name[0]) { |
| fprintf(stderr, Name ": name cannot be set twice. " |
| "Second value %s.\n", optarg); |
| exit(2); |
| } |
| if (strlen(optarg) > 32) { |
| fprintf(stderr, Name ": 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 */ |
| if (ident.super_minor != UnSet) { |
| fprintf(stderr, Name ": 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 = strtoul(optarg, &cp, 10); |
| if (!optarg[0] || *cp) { |
| fprintf(stderr, Name ": Bad super-minor number: %s.\n", optarg); |
| exit(2); |
| } |
| } |
| continue; |
| |
| case O(ASSEMBLE,'U'): /* update the superblock */ |
| if (update) { |
| fprintf(stderr, Name ": Can only update one aspect of superblock, both %s and %s given.\n", |
| update, optarg); |
| exit(2); |
| } |
| update = optarg; |
| if (strcmp(update, "sparc2.2")==0) |
| continue; |
| if (strcmp(update, "super-minor") == 0) |
| continue; |
| if (strcmp(update, "summaries")==0) |
| continue; |
| if (strcmp(update, "resync")==0) |
| continue; |
| if (strcmp(update, "uuid")==0) |
| continue; |
| if (strcmp(update, "name")==0) |
| continue; |
| if (strcmp(update, "homehost")==0) |
| continue; |
| if (strcmp(update, "devicesize")==0) |
| continue; |
| if (strcmp(update, "byteorder")==0) { |
| if (ss) { |
| fprintf(stderr, Name ": 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) { |
| fprintf(stderr, Name ": INTERNAL ERROR cannot find 0.swap\n"); |
| exit(2); |
| } |
| |
| continue; |
| } |
| if (strcmp(update,"?") == 0 || |
| strcmp(update, "help") == 0) { |
| outf = stdout; |
| fprintf(outf, Name ": "); |
| } else { |
| outf = stderr; |
| fprintf(outf, |
| Name ": '--update=%s' is invalid. ", |
| update); |
| } |
| fprintf(outf, "Valid --update options are:\n" |
| " 'sparc2.2', 'super-minor', 'uuid', 'name', 'resync',\n" |
| " 'summaries', 'homehost', 'byteorder', 'devicesize'.\n"); |
| exit(outf == stdout ? 0 : 2); |
| |
| case O(ASSEMBLE,NoDegraded): /* --no-degraded */ |
| runstop = -1; /* --stop isn't allowed for --assemble, |
| * so we overload slightly */ |
| continue; |
| |
| case O(ASSEMBLE,'c'): /* config file */ |
| case O(INCREMENTAL, 'c'): |
| case O(MISC, 'c'): |
| case O(MONITOR,'c'): |
| if (configfile) { |
| fprintf(stderr, Name ": 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'): |
| scan = 1; |
| continue; |
| |
| case O(MONITOR,'m'): /* mail address */ |
| if (mailaddr) |
| fprintf(stderr, Name ": only specify one mailaddress. %s ignored.\n", |
| optarg); |
| else |
| mailaddr = optarg; |
| continue; |
| |
| case O(MONITOR,'p'): /* alert program */ |
| if (program) |
| fprintf(stderr, Name ": only specify one alter program. %s ignored.\n", |
| optarg); |
| else |
| program = optarg; |
| 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 (delay) |
| fprintf(stderr, Name ": only specify delay once. %s ignored.\n", |
| optarg); |
| else { |
| delay = strtol(optarg, &c, 10); |
| if (!optarg[0] || *c || delay<1) { |
| fprintf(stderr, Name ": invalid delay: %s\n", |
| optarg); |
| exit(2); |
| } |
| } |
| continue; |
| case O(MONITOR,'f'): /* daemonise */ |
| daemonise = 1; |
| continue; |
| case O(MONITOR,'i'): /* pid */ |
| if (pidfile) |
| fprintf(stderr, Name ": only specify one pid file. %s ignored.\n", |
| optarg); |
| else |
| pidfile = optarg; |
| continue; |
| case O(MONITOR,'1'): /* oneshot */ |
| oneshot = 1; |
| continue; |
| case O(MONITOR,'t'): /* test */ |
| test = 1; |
| continue; |
| case O(MONITOR,'y'): /* log messages to syslog */ |
| openlog("mdadm", LOG_PID, SYSLOG_FACILITY); |
| dosyslog = 1; |
| continue; |
| |
| /* now the general management options. Some are applicable |
| * to other modes. None have arguments. |
| */ |
| case O(GROW,'a'): |
| case O(MANAGE,'a'): /* add a drive */ |
| devmode = 'a'; |
| re_add = 0; |
| continue; |
| case O(MANAGE,ReAdd): |
| devmode = 'a'; |
| re_add = 1; |
| continue; |
| case O(MANAGE,'r'): /* remove a drive */ |
| devmode = 'r'; |
| continue; |
| case O(MANAGE,'f'): /* set faulty */ |
| devmode = 'f'; |
| 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 (runstop < 0) { |
| fprintf(stderr, Name ": Cannot both Stop and Run an array\n"); |
| exit(2); |
| } |
| runstop = 1; |
| continue; |
| case O(MANAGE,'S'): |
| if (runstop > 0) { |
| fprintf(stderr, Name ": Cannot both Run and Stop an array\n"); |
| exit(2); |
| } |
| runstop = -1; |
| continue; |
| |
| case O(MISC,'Q'): |
| case O(MISC,'D'): |
| case O(MISC,'E'): |
| case O(MISC,'K'): |
| case O(MISC,'R'): |
| case O(MISC,'S'): |
| case O(MISC,'X'): |
| case O(MISC,'o'): |
| case O(MISC,'w'): |
| case O(MISC,'W'): |
| if (devmode && devmode != opt && |
| (devmode == 'E' || (opt == 'E' && devmode != 'Q'))) { |
| fprintf(stderr, Name ": --examine/-E cannot be given with -%c\n", |
| devmode =='E'?opt:devmode); |
| exit(2); |
| } |
| devmode = opt; |
| continue; |
| case O(MISC,'t'): |
| test = 1; |
| continue; |
| |
| case O(MISC, Sparc22): |
| if (devmode != 'E') { |
| fprintf(stderr, Name ": --sparc2.2 only allowed with --examine\n"); |
| exit(2); |
| } |
| SparcAdjust = 1; |
| continue; |
| |
| case O(ASSEMBLE,'b'): /* here we simply set the bitmap file */ |
| if (!optarg) { |
| fprintf(stderr, Name ": bitmap file needed with -b in --assemble mode\n"); |
| exit(2); |
| } |
| if (strcmp(optarg, "internal")==0) { |
| fprintf(stderr, Name ": there is no need to specify --bitmap when assembling arrays with internal bitmaps\n"); |
| continue; |
| } |
| bitmap_fd = open(optarg, O_RDWR); |
| if (!*optarg || bitmap_fd < 0) { |
| fprintf(stderr, Name ": 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 (backup_file) { |
| fprintf(stderr, Name ": backup file already specified, rejecting %s\n", optarg); |
| exit(2); |
| } |
| backup_file = optarg; |
| continue; |
| |
| case O(BUILD,'b'): |
| case O(CREATE,'b'): /* here we create the bitmap */ |
| if (strcmp(optarg, "none") == 0) { |
| fprintf(stderr, Name ": '--bitmap none' only" |
| " support for --grow\n"); |
| exit(2); |
| } |
| /* FALL THROUGH */ |
| case O(GROW,'b'): |
| if (strcmp(optarg, "internal")== 0 || |
| strcmp(optarg, "none")== 0 || |
| strchr(optarg, '/') != NULL) { |
| bitmap_file = optarg; |
| continue; |
| } |
| /* probable typo */ |
| fprintf(stderr, Name ": bitmap file must contain a '/', or be 'internal', or 'none'\n"); |
| exit(2); |
| |
| case O(GROW,BitmapChunk): |
| case O(BUILD,BitmapChunk): |
| case O(CREATE,BitmapChunk): /* bitmap chunksize */ |
| bitmap_chunk = strtol(optarg, &c, 10); |
| if (!optarg[0] || *c || bitmap_chunk < 0 || |
| bitmap_chunk & (bitmap_chunk - 1)) { |
| fprintf(stderr, Name ": invalid bitmap chunksize: %s\n", |
| optarg); |
| exit(2); |
| } |
| /* convert K to B, chunk of 0K means 512B */ |
| bitmap_chunk = bitmap_chunk ? bitmap_chunk * 1024 : 512; |
| continue; |
| |
| case O(GROW, WriteBehind): |
| case O(BUILD, WriteBehind): |
| case O(CREATE, WriteBehind): /* write-behind mode */ |
| write_behind = DEFAULT_MAX_WRITE_BEHIND; |
| if (optarg) { |
| write_behind = strtol(optarg, &c, 10); |
| if (write_behind < 0 || *c || |
| write_behind > 16383) { |
| fprintf(stderr, Name ": 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'): |
| rebuild_map = 1; |
| continue; |
| |
| case O(CREATE, ReserveSpace): |
| reserve_space = strtoul(optarg, &c, 10)*2; |
| if (reserve_space > 0) { |
| switch (*c++) { |
| default: c--; break; |
| case 'K': break; |
| case 'M': |
| reserve_space <<= 10; |
| break; |
| case 'G': |
| reserve_space <<= 20; |
| break; |
| } |
| } |
| if (reserve_space == 0 || *c) { |
| fprintf(stderr, Name ": Invalid value for reserve-space: %s\n", |
| optarg); |
| exit(2); |
| } |
| continue; |
| } |
| /* We have now processed all the valid options. Anything else is |
| * an error |
| */ |
| if (option_index > 0) |
| fprintf(stderr, Name ":option --%s not valid in %s mode\n", |
| long_options[option_index].name, |
| map_num(modes, mode)); |
| else |
| fprintf(stderr, Name ": option -%c not valid in %s mode\n", |
| opt, map_num(modes, mode)); |
| exit(2); |
| |
| } |
| |
| if (print_help) { |
| char *help_text = Help; |
| if (print_help == 2) |
| help_text = OptionHelp; |
| else |
| switch (mode) { |
| case ASSEMBLE : help_text = Help_assemble; break; |
| case BUILD : help_text = Help_build; break; |
| case CREATE : help_text = Help_create; break; |
| case MANAGE : help_text = Help_manage; break; |
| case MISC : help_text = Help_misc; break; |
| case MONITOR : help_text = Help_monitor; break; |
| case GROW : help_text = Help_grow; break; |
| case INCREMENTAL:help_text= Help_incr; break; |
| } |
| fputs(help_text,stdout); |
| exit(0); |
| } |
| |
| 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 { |
| fprintf(stderr, Name ": 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 mosty 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 && ! scan)) { |
| if (devs_found < 1) { |
| fprintf(stderr, Name ": an md device must be given in this mode\n"); |
| exit(2); |
| } |
| if ((int)ident.super_minor == -2 && autof) { |
| fprintf(stderr, Name ": --super-minor=dev is incompatible with --auto\n"); |
| exit(2); |
| } |
| if (mode == MANAGE || mode == GROW) |
| autof=1; /* Don't create */ |
| mdfd = open_mddev(devlist->devname, autof); |
| if (mdfd < 0) |
| exit(1); |
| if ((int)ident.super_minor == -2) { |
| struct stat stb; |
| fstat(mdfd, &stb); |
| ident.super_minor = minor(stb.st_rdev); |
| } |
| } |
| |
| if (raiddisks) { |
| if (raiddisks > max_disks) { |
| fprintf(stderr, Name ": invalid number of raid devices: %d\n", |
| raiddisks); |
| exit(2); |
| } |
| if (raiddisks == 1 && !force && level != -5) { |
| fprintf(stderr, Name ": '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 (sparedisks) { |
| if ( sparedisks > max_disks - raiddisks) { |
| fprintf(stderr, Name ": invalid number of spare-devices: %d\n", |
| sparedisks); |
| exit(2); |
| } |
| } |
| |
| if (homehost == NULL) |
| homehost = conf_get_homehost(); |
| if (homehost && strcmp(homehost, "<system>")==0) { |
| if (gethostname(sys_hostname, sizeof(sys_hostname)) == 0) { |
| sys_hostname[sizeof(sys_hostname)-1] = 0; |
| homehost = sys_hostname; |
| } |
| } |
| |
| rv = 0; |
| switch(mode) { |
| case MANAGE: |
| /* readonly, add/remove, readwrite, runstop */ |
| if (readonly>0) |
| rv = Manage_ro(devlist->devname, mdfd, readonly); |
| if (!rv && devs_found>1) |
| rv = Manage_subdevs(devlist->devname, mdfd, |
| devlist->next, verbose-quiet); |
| if (!rv && readonly < 0) |
| rv = Manage_ro(devlist->devname, mdfd, readonly); |
| if (!rv && runstop) |
| rv = Manage_runstop(devlist->devname, mdfd, runstop, quiet); |
| break; |
| case ASSEMBLE: |
| if (devs_found == 1 && ident.uuid_set == 0 && |
| ident.super_minor == UnSet && ident.name[0] == 0 && !scan ) { |
| /* Only a device has been given, so get details from config file */ |
| mddev_ident_t array_ident = conf_get_ident(devlist->devname); |
| if (array_ident == NULL) { |
| fprintf(stderr, Name ": %s not identified in config file.\n", |
| devlist->devname); |
| rv |= 1; |
| } else { |
| mdfd = open_mddev(devlist->devname, |
| array_ident->autof ? array_ident->autof : autof); |
| if (mdfd < 0) |
| rv |= 1; |
| else { |
| rv |= Assemble(ss, devlist->devname, mdfd, array_ident, |
| NULL, backup_file, |
| readonly, runstop, update, homehost, verbose-quiet, force); |
| close(mdfd); |
| } |
| } |
| } else if (!scan) |
| rv = Assemble(ss, devlist->devname, mdfd, &ident, |
| devlist->next, backup_file, |
| readonly, runstop, update, homehost, verbose-quiet, force); |
| else if (devs_found>0) { |
| if (update && devs_found > 1) { |
| fprintf(stderr, Name ": can only update a single array at a time\n"); |
| exit(1); |
| } |
| if (backup_file && devs_found > 1) { |
| fprintf(stderr, Name ": can only assemble a single array when providing a backup file.\n"); |
| exit(1); |
| } |
| for (dv = devlist ; dv ; dv=dv->next) { |
| mddev_ident_t array_ident = conf_get_ident(dv->devname); |
| if (array_ident == NULL) { |
| fprintf(stderr, Name ": %s not identified in config file.\n", |
| dv->devname); |
| rv |= 1; |
| continue; |
| } |
| mdfd = open_mddev(dv->devname, |
| array_ident->autof ?array_ident->autof : autof); |
| if (mdfd < 0) { |
| rv |= 1; |
| continue; |
| } |
| rv |= Assemble(ss, dv->devname, mdfd, array_ident, |
| NULL, backup_file, |
| readonly, runstop, update, homehost, verbose-quiet, force); |
| close(mdfd); |
| } |
| } else { |
| mddev_ident_t array_list = conf_get_ident(NULL); |
| mddev_dev_t devlist = conf_get_devs(); |
| int cnt = 0; |
| if (devlist == NULL) { |
| fprintf(stderr, Name ": No devices listed in conf file were found.\n"); |
| exit(1); |
| } |
| if (update) { |
| fprintf(stderr, Name ": --update not meaningful with a --scan assembly.\n"); |
| exit(1); |
| } |
| if (backup_file) { |
| fprintf(stderr, Name ": --backup_file not meaningful with a --scan assembly.\n"); |
| exit(1); |
| } |
| for (; array_list; array_list = array_list->next) { |
| mdu_array_info_t array; |
| mdfd = open_mddev(array_list->devname, |
| array_list->autof ? array_list->autof : autof); |
| if (mdfd < 0) { |
| rv |= 1; |
| continue; |
| } |
| if (ioctl(mdfd, GET_ARRAY_INFO, &array)>=0) |
| /* already assembled, skip */ |
| cnt++; |
| else { |
| rv |= Assemble(ss, array_list->devname, mdfd, |
| array_list, |
| NULL, NULL, |
| readonly, runstop, NULL, homehost, verbose-quiet, force); |
| if (rv == 0) cnt++; |
| } |
| close(mdfd); |
| } |
| if (homehost) { |
| /* Maybe we can auto-assemble something. |
| * Repeatedly call Assemble in auto-assmble mode |
| * until it fails |
| */ |
| int rv2; |
| int acnt; |
| ident.autof = autof; |
| do { |
| mddev_dev_t devlist = conf_get_devs(); |
| acnt = 0; |
| do { |
| rv2 = Assemble(ss, NULL, -1, |
| &ident, |
| devlist, NULL, |
| readonly, runstop, NULL, homehost, verbose-quiet, force); |
| if (rv2==0) { |
| cnt++; |
| acnt++; |
| } |
| if (rv2 == 1) |
| /* found something so even though assembly failed we |
| * want to avoid auto-updates |
| */ |
| auto_update_home = 0; |
| } while (rv2!=2); |
| /* Incase there are stacked devices, we need to go around again */ |
| } while (acnt); |
| if (cnt == 0 && auto_update_home && homehost) { |
| /* Nothing found, maybe we need to bootstrap homehost info */ |
| do { |
| acnt = 0; |
| do { |
| rv2 = Assemble(ss, NULL, -1, |
| &ident, |
| NULL, NULL, |
| readonly, runstop, "homehost", homehost, verbose-quiet, force); |
| 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) { |
| fprintf(stderr, Name ": No arrays found in config file or automatically\n"); |
| rv = 1; |
| } else if (cnt) |
| rv = 0; |
| } else if (cnt == 0 && rv == 0) { |
| fprintf(stderr, Name ": No arrays found in config file\n"); |
| rv = 1; |
| } |
| } |
| break; |
| case BUILD: |
| if (delay == 0) delay = DEFAULT_BITMAP_DELAY; |
| if (write_behind && !bitmap_file) { |
| fprintf(stderr, Name ": write-behind mode requires a bitmap.\n"); |
| rv = 1; |
| break; |
| } |
| if (raiddisks == 0) { |
| fprintf(stderr, Name ": no raid-devices specified.\n"); |
| rv = 1; |
| break; |
| } |
| |
| if (bitmap_file) { |
| if (strcmp(bitmap_file, "internal")==0) { |
| fprintf(stderr, Name ": 'internal' bitmaps not supported with --build\n"); |
| rv |= 1; |
| break; |
| } |
| } |
| rv = Build(devlist->devname, mdfd, chunk, level, layout, |
| raiddisks, devlist->next, assume_clean, |
| bitmap_file, bitmap_chunk, write_behind, delay, |
| verbose-quiet, size); |
| break; |
| case CREATE: |
| if (delay == 0) delay = DEFAULT_BITMAP_DELAY; |
| if (write_behind && !bitmap_file) { |
| fprintf(stderr, Name ": write-behind mode requires a bitmap.\n"); |
| rv = 1; |
| break; |
| } |
| if (raiddisks == 0) { |
| fprintf(stderr, Name ": no raid-devices specified.\n"); |
| rv = 1; |
| break; |
| } |
| |
| rv = Create(ss, devlist->devname, mdfd, chunk, level, layout, size<0 ? 0 : size, |
| raiddisks, sparedisks, ident.name, homehost, |
| ident.uuid_set ? ident.uuid : NULL, |
| devs_found-1, devlist->next, runstop, verbose-quiet, force, assume_clean, |
| bitmap_file, bitmap_chunk, write_behind, delay, |
| reserve_space); |
| break; |
| case MISC: |
| if (devmode == 'E') { |
| if (devlist == NULL && !scan) { |
| fprintf(stderr, Name ": No devices to examine\n"); |
| exit(2); |
| } |
| if (devlist == NULL) |
| devlist = conf_get_devs(); |
| if (devlist == NULL) { |
| fprintf(stderr, Name ": No devices listed in %s\n", configfile?configfile:DefaultConfFile); |
| exit(1); |
| } |
| if (brief && verbose) |
| brief = 2; |
| rv = Examine(devlist, scan?(verbose>1?0:verbose+1):brief, |
| export, scan, |
| SparcAdjust, ss, homehost); |
| } else { |
| if (devlist == NULL) { |
| if (devmode=='D' && scan) { |
| /* apply --detail to all devices in /proc/mdstat */ |
| struct mdstat_ent *ms = mdstat_read(0, 1); |
| struct mdstat_ent *e; |
| for (e=ms ; e ; e=e->next) { |
| char *name = get_md_name(e->devnum); |
| |
| if (!name) { |
| fprintf(stderr, Name ": cannot find device file for %s\n", |
| e->dev); |
| continue; |
| } |
| rv |= Detail(name, verbose>1?0:verbose+1, |
| export, test, homehost); |
| put_md_name(name); |
| } |
| free_mdstat(ms); |
| } else if (devmode == 'S' && scan) { |
| /* 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; |
| 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->devnum); |
| |
| if (!name) { |
| fprintf(stderr, Name ": cannot find device file for %s\n", |
| e->dev); |
| continue; |
| } |
| mdfd = open_mddev(name, 1); |
| if (mdfd >= 0) { |
| if (Manage_runstop(name, mdfd, -1, quiet?1:last?0:-1)) |
| err = 1; |
| else |
| progress = 1; |
| close(mdfd); |
| } |
| |
| put_md_name(name); |
| } |
| free_mdstat(ms); |
| } while (!last && err); |
| if (err) rv |= 1; |
| } else { |
| fprintf(stderr, Name ": No devices given.\n"); |
| exit(2); |
| } |
| } |
| for (dv=devlist ; dv; dv=dv->next) { |
| switch(dv->disposition) { |
| case 'D': |
| rv |= Detail(dv->devname, |
| brief?1+verbose:0, |
| export, test, homehost); |
| continue; |
| case 'K': /* Zero superblock */ |
| rv |= Kill(dv->devname, force, quiet); continue; |
| case 'Q': |
| rv |= Query(dv->devname); continue; |
| case 'X': |
| rv |= ExamineBitmap(dv->devname, brief, ss); continue; |
| case 'W': |
| rv |= Wait(dv->devname); continue; |
| } |
| mdfd = open_mddev(dv->devname, 1); |
| if (mdfd>=0) { |
| switch(dv->disposition) { |
| case 'R': |
| rv |= Manage_runstop(dv->devname, mdfd, 1, quiet); break; |
| case 'S': |
| rv |= Manage_runstop(dv->devname, mdfd, -1, quiet); 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; |
| } |
| } |
| break; |
| case MONITOR: |
| if (!devlist && !scan) { |
| fprintf(stderr, Name ": Cannot monitor: need --scan or at least one device\n"); |
| rv = 1; |
| break; |
| } |
| if (pidfile && !daemonise) { |
| fprintf(stderr, Name ": Cannot write a pid file when not in daemon mode\n"); |
| rv = 1; |
| break; |
| } |
| rv= Monitor(devlist, mailaddr, program, |
| delay?delay:60, daemonise, scan, oneshot, |
| dosyslog, test, pidfile); |
| break; |
| |
| case GROW: |
| if (devs_found > 1) { |
| |
| /* must be '-a'. */ |
| if (size >= 0 || raiddisks) { |
| fprintf(stderr, Name ": --size, --raiddisks, and --add are exclusing 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 ((size >= 0) + (raiddisks != 0) + (layout != UnSet) + (bitmap_file != NULL)> 1) { |
| fprintf(stderr, Name ": can change at most one of size, raiddisks, bitmap, and layout\n"); |
| rv = 1; |
| break; |
| } else if (layout != UnSet) |
| rv = Manage_reconfig(devlist->devname, mdfd, layout); |
| else if (size >= 0 || raiddisks) |
| rv = Grow_reshape(devlist->devname, mdfd, quiet, backup_file, |
| size, level, layout, chunk, raiddisks); |
| else if (bitmap_file) { |
| if (delay == 0) delay = DEFAULT_BITMAP_DELAY; |
| rv = Grow_addbitmap(devlist->devname, mdfd, bitmap_file, |
| bitmap_chunk, delay, write_behind, force); |
| } else |
| fprintf(stderr, Name ": no changes to --grow\n"); |
| break; |
| case INCREMENTAL: |
| if (rebuild_map) { |
| RebuildMap(); |
| } |
| if (scan) { |
| if (runstop <= 0) { |
| fprintf(stderr, Name |
| ": --incremental --scan meaningless without --run.\n"); |
| break; |
| } |
| rv = IncrementalScan(verbose); |
| } |
| if (!devlist) { |
| if (!rebuild_map && !scan) { |
| fprintf(stderr, Name |
| ": --incremental requires a device.\n"); |
| rv = 1; |
| } |
| break; |
| } |
| if (devlist->next) { |
| fprintf(stderr, Name |
| ": --incremental can only handle one device.\n"); |
| rv = 1; |
| break; |
| } |
| rv = Incremental(devlist->devname, verbose-quiet, runstop, |
| ss, homehost, autof); |
| break; |
| case AUTODETECT: |
| autodetect(); |
| break; |
| } |
| exit(rv); |
| } |