diff options
Diffstat (limited to 'mdadm.c')
| -rw-r--r-- | mdadm.c | 338 |
1 files changed, 228 insertions, 110 deletions
@@ -34,7 +34,7 @@ int open_mddev(char *dev) { int mdfd = open(dev, O_RDWR, 0); if (mdfd < 0) - fprintf(stderr,Name ": error opening %s: %s\n", + fprintf(stderr, Name ": error opening %s: %s\n", dev, strerror(errno)); else if (md_get_version(mdfd) <= 0) { fprintf(stderr, Name ": %s does not appear to be an md device\n", @@ -49,12 +49,12 @@ int open_mddev(char *dev) int main(int argc, char *argv[]) { - char mode = '\0'; + int mode = 0; int opt; + int option_index; char *help_text; char *c; int rv; - int i; int chunk = 0; int size = 0; @@ -89,36 +89,22 @@ int main(int argc, char *argv[]) ident.super_minor= -1; ident.devices=0; - while ((opt=getopt_long(argc, argv, + while ((option_index = -1) , + (opt=getopt_long(argc, argv, short_options, long_options, - NULL)) != -1) { - + &option_index)) != -1) { + int newmode = mode; + /* firstly, so mode-independant options */ switch(opt) { - case '@': /* just incase they say --manage */ - case 'A': - case 'B': - case 'C': - case 'D': - case 'E': - case 'F': - case 'H': - /* setting mode - only once */ - if (mode) { - fprintf(stderr, Name ": --%s/-%c not allowed, mode already set to %s\n", - long_options[opt-'A'+1].name, - long_options[opt-'A'+1].val, - long_options[mode-'A'+1].name); - exit(2); - } - mode = opt; - continue; - case 'h': help_text = Help; switch (mode) { - case 'C': help_text = Help_create; break; - case 'B': help_text = Help_build; break; - case 'A': help_text = Help_assemble; break; + 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; } fputs(help_text,stderr); exit(0); @@ -133,18 +119,83 @@ int main(int argc, char *argv[]) case 'b': brief = 1; continue; - case 1: /* an undecorated option - must be a device name. - * Depending on mode, it could be that: - * All devices listed are "md" devices : --Detail, -As - * No devices are "md" devices : --Examine - * First device is "md", others are component: -A,-B,-C - * Only accept on device before mode is determined. - * If mode is @, then require devmode for other devices. - */ - if (devs_found > 0 && !mode ) { - fprintf(stderr, Name ": Must give mode flag before second device name at %s\n", optarg); - exit(2); + 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; break; + case 'a': + case 'r': + case 'f': + case 1 : if (!mode) newmode = MANAGE; break; + + case 'A': newmode = ASSEMBLE; break; + case 'B': newmode = BUILD; break; + case 'C': newmode = CREATE; break; + case 'F': newmode = MONITOR;break; + + case '#': + case 'D': + case 'E': + case 'Q': newmode = MISC; break; + case 'R': + case 'S': + case 'o': + 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 mode to %s, but it is already %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, stderr); + exit(0); } + if (option_index >= 0) + fprintf(stderr, "--%s", long_options[option_index].name); + else + fprintf(stderr, "-%c", opt); + fprintf(stderr, " does not set the mode, and so cannot be first.\n"); + exit(2); + } + + /* if we just set the mode, then done */ + switch(opt) { + case '@': + case '#': + case 'A': + case 'B': + case 'C': + case 'F': + continue; + } + if (opt == 1) { + /* an undecorated option - must be a device name. + */ if (devs_found > 0 && mode == '@' && !devmode) { fprintf(stderr, Name ": Must give on of -a/-r/-f for subsequent devices at %s\n", optarg); exit(2); @@ -162,22 +213,14 @@ int main(int argc, char *argv[]) devs_found++; continue; - - case ':': - case '?': - fputs(Usage, stderr); - exit(2); - default: - /* force mode setting - @==manage if nothing else */ - if (!mode) mode = '@'; } /* 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('C','c'): - case O('B','c'): /* chunk or rounding */ + 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); @@ -191,7 +234,7 @@ int main(int argc, char *argv[]) } continue; - case O('C','z'): /* size */ + case O(CREATE,'z'): /* size */ if (size) { fprintf(stderr, Name ": size may only be specified once. " "Second value is %s.\n", optarg); @@ -205,8 +248,8 @@ int main(int argc, char *argv[]) } continue; - case O('C','l'): - case O('B','l'): /* set raid level*/ + case O(CREATE,'l'): + case O(BUILD,'l'): /* set raid level*/ if (level != -10) { fprintf(stderr, Name ": raid level may only be set once. " "Second value is %s.\n", optarg); @@ -218,12 +261,12 @@ int main(int argc, char *argv[]) optarg); exit(2); } - if (level > 0 && mode == 'B') { + if (level != 0 && level != -1 && mode == BUILD) { fprintf(stderr, Name ": Raid level %s not permitted with --build.\n", optarg); exit(2); } - if (sparedisks > 0 && level < 1) { + if (sparedisks > 0 && level < 1 && level >= -1) { fprintf(stderr, Name ": raid level %s is incompatible with spare-disks setting.\n", optarg); exit(2); @@ -231,7 +274,7 @@ int main(int argc, char *argv[]) ident.level = level; continue; - case O('C','p'): /* raid5 layout */ + case O(CREATE,'p'): /* raid5 layout */ if (layout >= 0) { fprintf(stderr,Name ": layout may only be sent once. " "Second value was %s\n", optarg); @@ -257,8 +300,8 @@ int main(int argc, char *argv[]) } continue; - case O('C','n'): - case O('B','n'): /* number of raid disks */ + case O(CREATE,'n'): + case O(BUILD,'n'): /* number of raid disks */ if (raiddisks) { fprintf(stderr, Name ": raid-disks set twice: %d and %s\n", raiddisks, optarg); @@ -273,13 +316,13 @@ int main(int argc, char *argv[]) ident.raid_disks = raiddisks; continue; - case O('C','x'): /* number of spare (eXtra) discs */ + case O(CREATE,'x'): /* number of spare (eXtra) discs */ if (sparedisks) { fprintf(stderr,Name ": spare-disks set twice: %d and %s\n", sparedisks, optarg); exit(2); } - if (level > -10 && level < 1) { + if (level > -10 && level <= 0 && level >= -1) { fprintf(stderr, Name ": spare-disks setting is incompatible with raid level %d\n", level); exit(2); @@ -291,14 +334,14 @@ int main(int argc, char *argv[]) exit(2); } continue; - case O('C','f'): /* force honouring of device list */ - case O('A','f'): /* force assembly */ - case O('H','f'): /* force zero */ + 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('A','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); @@ -312,7 +355,7 @@ int main(int argc, char *argv[]) } continue; - case O('A','m'): /* super-minor for array */ + case O(ASSEMBLE,'m'): /* super-minor for array */ if (ident.super_minor >= 0) { fprintf(stderr, Name ": super-minor cannot be set twice. " "Second value: %s.\n", optarg); @@ -325,8 +368,8 @@ int main(int argc, char *argv[]) } continue; - case O('A','c'): /* config file */ - case O('F','c'): + case O(ASSEMBLE,'c'): /* config file */ + case O(MONITOR,'c'): if (configfile) { fprintf(stderr, Name ": configfile cannot be set twice. " "Second value is %s.\n", optarg); @@ -335,12 +378,13 @@ int main(int argc, char *argv[]) configfile = optarg; /* FIXME possibly check that config file exists. Even parse it */ continue; - case O('A','s'): /* scan */ - case O('E','s'): + case O(ASSEMBLE,'s'): /* scan */ + case O(MISC,'s'): + case O(MONITOR,'s'): scan = 1; continue; - case O('F','m'): /* mail address */ + case O(MONITOR,'m'): /* mail address */ if (mailaddr) fprintf(stderr, Name ": only specify one mailaddress. %s ignored.\n", optarg); @@ -348,7 +392,7 @@ int main(int argc, char *argv[]) mailaddr = optarg; continue; - case O('F','p'): /* alert program */ + case O(MONITOR,'p'): /* alert program */ if (program) fprintf(stderr, Name ": only specify one alter program. %s ignored.\n", optarg); @@ -356,7 +400,7 @@ int main(int argc, char *argv[]) program = optarg; continue; - case O('F','d'): /* delay in seconds */ + case O(MONITOR,'d'): /* delay in seconds */ if (delay) fprintf(stderr, Name ": only specify delay once. %s ignored.\n", optarg); @@ -374,29 +418,29 @@ int main(int argc, char *argv[]) /* now the general management options. Some are applicable * to other modes. None have arguments. */ - case O('@','a'): - case O('C','a'): - case O('B','a'): - case O('A','a'): /* add a drive */ + case O(MANAGE,'a'): + case O(CREATE,'a'): + case O(BUILD,'a'): + case O(ASSEMBLE,'a'): /* add a drive */ devmode = 'a'; continue; - case O('@','r'): /* remove a drive */ + case O(MANAGE,'r'): /* remove a drive */ devmode = 'r'; continue; - case O('@','f'): /* set faulty */ + case O(MANAGE,'f'): /* set faulty */ devmode = 'f'; continue; - case O('@','R'): - case O('A','R'): - case O('B','R'): - case O('C','R'): /* Run the array */ + 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('@','S'): + case O(MANAGE,'S'): if (runstop > 0) { fprintf(stderr, Name ": Cannot both Run and Stop an array\n"); exit(2); @@ -404,26 +448,44 @@ int main(int argc, char *argv[]) runstop = -1; continue; - case O('@','o'): + case O(MANAGE,'o'): if (readonly < 0) { fprintf(stderr, Name ": Cannot have both readonly and readwrite\n"); exit(2); } readonly = 1; continue; - case O('@','w'): + case O(MANAGE,'w'): if (readonly > 0) { - fprintf(stderr, "mkdctl: Cannot have both readwrite and readonly.\n"); + fprintf(stderr, Name ": Cannot have both readwrite and readonly.\n"); exit(2); } readonly = -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,'o'): + 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; + } /* We have now processed all the valid options. Anything else is * an error */ - fprintf(stderr, Name ": option %c not valid in mode %c\n", - opt, mode); + fprintf(stderr, Name ": option %c not valid in %s mode\n", + opt, map_num(modes, mode)); exit(2); } @@ -436,13 +498,13 @@ int main(int argc, char *argv[]) * hopefully it's mostly right but there might be some stuff * missing * - * That is mosty checked in ther per-mode stuff but... + * 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=='@' || mode == 'B' || mode == 'C' || (mode == 'A' && ! scan)) { + if (mode==MANAGE || mode == BUILD || mode == CREATE || (mode == ASSEMBLE && ! scan)) { if (devs_found < 1) { fprintf(stderr, Name ": an md device must be given in this mode\n"); exit(2); @@ -452,10 +514,9 @@ int main(int argc, char *argv[]) exit(1); } - rv = 0; switch(mode) { - case '@':/* Management */ + case MANAGE: /* readonly, add/remove, readwrite, runstop */ if (readonly>0) rv = Manage_ro(devlist->devname, mdfd, readonly); @@ -467,7 +528,7 @@ int main(int argc, char *argv[]) if (!rv && runstop) rv = Manage_runstop(devlist->devname, mdfd, runstop); break; - case 'A': /* Assemble */ + case ASSEMBLE: if (!scan) rv = Assemble(devlist->devname, mdfd, &ident, configfile, devlist->next, @@ -513,32 +574,89 @@ int main(int argc, char *argv[]) } } break; - case 'B': /* Build */ + case BUILD: rv = Build(devlist->devname, mdfd, chunk, level, raiddisks, devlist->next); break; - case 'C': /* Create */ + case CREATE: rv = Create(devlist->devname, mdfd, chunk, level, layout, size, raiddisks, sparedisks, devs_found-1, devlist->next, runstop, verbose, force); break; - case 'D': /* Detail */ - for (dv=devlist ; dv; dv=dv->next) - rv |= Detail(dv->devname, brief); - break; - case 'E': /* Examine */ - if (devlist == NULL && scan==0) { - fprintf(stderr, Name ": No devices to examine\n"); - exit(2); + 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(configfile); + if (devlist == NULL) { + fprintf(stderr, Name ": No devices listed in %s\n", configfile); + exit(1); + } + rv = Examine(devlist, devlist?brief:!verbose, scan); + } else { + if (devlist == NULL) { + if ((devmode == 'S' ||devmode=='D') && scan) { + /* apply to all devices in /proc/mdstat */ + struct mdstat_ent *ms = mdstat_read(); + 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; + } + if (devmode == 'D') + rv |= Detail(name, !verbose); + else if (devmode=='S') { + mdfd = open_mddev(name); + if (mdfd >= 0) + rv |= Manage_runstop(name, mdfd, -1); + } + put_md_name(name); + } + } 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); continue; + case 'K': /* Zero superblock */ + rv |= Kill(dv->devname, force); continue; + case 'Q': + rv |= Query(dv->devname); continue; + } + mdfd = open_mddev(dv->devname); + if (mdfd>=0) + switch(dv->disposition) { + case 'R': + rv |= Manage_runstop(dv->devname, mdfd, 1); break; + case 'S': + rv |= Manage_runstop(dv->devname, mdfd, -1); break; + case 'o': + rv |= Manage_ro(dv->devname, mdfd, 1); break; + case 'w': + rv |= Manage_ro(dv->devname, mdfd, -1); break; + } + } } - rv = Examine(devlist, devlist?brief:!verbose, configfile); - break; - case 'F': /* Follow */ - rv= Monitor(devlist, mailaddr, program, - delay?delay:60, configfile); break; - case 'H': /* Zero superblock */ - for (dv=devlist ; dv; dv=dv->next) - rv |= Kill(dv->devname, force); + case MONITOR: +/* + if (!devlist && !scan) { + fprintf(stderr, Name ": Cannot monitor: need --scan or at least one device\n"); + rv = 1; + break; + } +*/ rv= Monitor(devlist, mailaddr, program, + delay?delay:60, scan, configfile); break; } exit(rv); |