]> git.ipfire.org Git - thirdparty/mdadm.git/blobdiff - mdadm.c
Set default name for v1 array based on device name.
[thirdparty/mdadm.git] / mdadm.c
diff --git a/mdadm.c b/mdadm.c
index 26a2744b11160f0cff29cde5362734f02e58a619..ff656e4122ded98049311f0fff9e4f902e87b27b 100644 (file)
--- a/mdadm.c
+++ b/mdadm.c
@@ -1,7 +1,7 @@
 /*
  * mdadm - manage Linux "md" devices aka RAID arrays.
  *
- * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -87,6 +87,8 @@ int main(int argc, char *argv[])
         */
        int autof = 0;
 
+       char *homehost = NULL;
+       char sys_hostname[256];
        char *mailaddr = NULL;
        char *program = NULL;
        int delay = 0;
@@ -153,6 +155,10 @@ int main(int argc, char *argv[])
                        }
                        continue;
 
+               case HomeHost:
+                       homehost = optarg;
+                       continue;
+
                case ':':
                case '?':
                        fputs(Usage, stderr);
@@ -231,6 +237,7 @@ int main(int argc, char *argv[])
                                        dv->disposition = devmode;
                                        dv->writemostly = writemostly;
                                        dv->re_add = re_add;
+                                       dv->used = 0;
                                        dv->next = NULL;
                                        *devlistend = dv;
                                        devlistend = &dv->next;
@@ -441,8 +448,8 @@ int main(int argc, char *argv[])
                        }
                        continue;
 
-               case O(CREATE,3):
-               case O(BUILD,3): /* assume clean */
+               case O(CREATE,AssumeClean):
+               case O(BUILD,AssumeClean): /* assume clean */
                        assume_clean = 1;
                        continue;
 
@@ -560,6 +567,10 @@ int main(int argc, char *argv[])
                                continue;
                        if (strcmp(update, "uuid")==0)
                                continue;
+                       if (strcmp(update, "name")==0)
+                               continue;
+                       if (strcmp(update, "homehost")==0)
+                               continue;
                        if (strcmp(update, "byteorder")==0) {
                                if (ss) {
                                        fprintf(stderr, Name ": must not set metadata type with --update=byteorder.\n");
@@ -577,6 +588,10 @@ int main(int argc, char *argv[])
                        fprintf(stderr, Name ": '--update %s' invalid.  Only 'sparc2.2', 'super-minor', 'uuid', 'resync' or 'summaries' supported\n",update);
                        exit(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(MISC, 'c'):
                case O(MONITOR,'c'):
@@ -655,7 +670,7 @@ int main(int argc, char *argv[])
                        devmode = 'a';
                        re_add = 0;
                        continue;
-               case O(MANAGE,6):
+               case O(MANAGE,ReAdd):
                        devmode = 'a';
                        re_add = 1;
                        continue;
@@ -719,7 +734,7 @@ int main(int argc, char *argv[])
                        test = 1;
                        continue;
 
-               case O(MISC, 22):
+               case O(MISC, Sparc22):
                        if (devmode != 'E') {
                                fprintf(stderr, Name ": --sparc2.2 only allowed with --examine\n");
                                exit(2);
@@ -744,8 +759,8 @@ int main(int argc, char *argv[])
                        ident.bitmap_fd = bitmap_fd; /* for Assemble */
                        continue;
 
-               case O(ASSEMBLE, 7):
-               case O(GROW, 7):
+               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
                         */
@@ -769,9 +784,9 @@ int main(int argc, char *argv[])
                        fprintf(stderr, Name ": bitmap file must contain a '/', or be 'internal', or 'none'\n");
                        exit(2);
 
-               case O(GROW,4):
-               case O(BUILD,4):
-               case O(CREATE,4): /* bitmap chunksize */
+               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)) {
@@ -783,8 +798,8 @@ int main(int argc, char *argv[])
                        bitmap_chunk = bitmap_chunk ? bitmap_chunk * 1024 : 512;
                        continue;
 
-               case O(BUILD, 5):
-               case O(CREATE, 5): /* write-behind mode */
+               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);
@@ -858,6 +873,8 @@ int main(int argc, char *argv[])
                        fprintf(stderr, Name ": --super-minor=dev is incompatible with --auto\n");      
                        exit(2);
                }
+               if (mode == MANAGE && runstop < 0)
+                       autof=1; /* Don't create */
                mdfd = open_mddev(devlist->devname, autof);
                if (mdfd < 0)
                        exit(1);
@@ -889,6 +906,15 @@ int main(int argc, char *argv[])
                }
        }
 
+       if (homehost == NULL)
+               homehost = conf_get_homehost(configfile);
+       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:
@@ -920,14 +946,14 @@ int main(int argc, char *argv[])
                                else {
                                        rv |= Assemble(ss, devlist->devname, mdfd, array_ident, configfile,
                                                       NULL, backup_file,
-                                                      readonly, runstop, update, verbose-quiet, force);
+                                                      readonly, runstop, update, homehost, verbose-quiet, force);
                                        close(mdfd);
                                }
                        }
                } else if (!scan)
                        rv = Assemble(ss, devlist->devname, mdfd, &ident, configfile,
                                      devlist->next, backup_file,
-                                     readonly, runstop, update, verbose-quiet, force);
+                                     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");
@@ -953,41 +979,76 @@ int main(int argc, char *argv[])
                                }
                                rv |= Assemble(ss, dv->devname, mdfd, array_ident, configfile,
                                               NULL, backup_file,
-                                              readonly, runstop, update, verbose-quiet, force);
+                                              readonly, runstop, update, homehost, verbose-quiet, force);
                                close(mdfd);
                        }
                } else {
                        mddev_ident_t array_list =  conf_get_ident(configfile, NULL);
-                       if (!array_list) {
-                               fprintf(stderr, Name ": No arrays found in config file\n");
-                               rv = 1;
-                       } else
-                               if (update) {
-                                       fprintf(stderr, Name ": --update not meaningful with a --scan assembly.\n");
-                                       exit(1);
+                       mddev_dev_t devlist = conf_get_devs(configfile);
+                       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 (backup_file) {
-                                       fprintf(stderr, Name ": --backup_file not meaningful with a --scan assembly.\n");
-                                       exit(1);
+                               if (ioctl(mdfd, GET_ARRAY_INFO, &array)>=0)
+                                       /* already assembled, skip */
+                                       ;
+                               else {
+                                       rv |= Assemble(ss, array_list->devname, mdfd,
+                                                      array_list, configfile,
+                                                      devlist, NULL,
+                                                      readonly, runstop, NULL, homehost, verbose-quiet, force);
+                                       if (rv == 0) cnt++;
                                }
-                               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 */
-                                               ;
-                                       else
-                                               rv |= Assemble(ss, array_list->devname, mdfd,
-                                                              array_list, configfile,
-                                                              NULL, NULL,
-                                                              readonly, runstop, NULL, verbose-quiet, force);
-                                       close(mdfd);
+                               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 {
+                                       acnt = 0;
+                                       do {
+                                               rv2 = Assemble(ss, NULL, -1,
+                                                              &ident, configfile,
+                                                              devlist, NULL,
+                                                              readonly, runstop, NULL, homehost, verbose-quiet, force);
+                                               if (rv2==0) {
+                                                       cnt++;
+                                                       acnt++;
+                                               }
+                                       } while (rv2!=2);
+                                       /* Incase there are stacked devices, we need to go around again */
+                                       devlist = conf_get_devs(configfile);
+                               } while (acnt);
+                               if (cnt == 0 && rv == 0) {
+                                       fprintf(stderr, Name ": No arrays found in config file or automatically\n");
+                                       rv = 1;
                                }
+                       } else if (cnt == 0 && rv == 0) {
+                               fprintf(stderr, Name ": No arrays found in config file\n");
+                               rv = 1;
+                       }
                }
                break;
        case BUILD:
@@ -1018,7 +1079,7 @@ int main(int argc, char *argv[])
                }
 
                rv = Create(ss, devlist->devname, mdfd, chunk, level, layout, size<0 ? 0 : size,
-                           raiddisks, sparedisks, ident.name,
+                           raiddisks, sparedisks, ident.name, homehost,
                            devs_found-1, devlist->next, runstop, verbose-quiet, force, assume_clean,
                            bitmap_file, bitmap_chunk, write_behind, delay);
                break;
@@ -1035,7 +1096,7 @@ int main(int argc, char *argv[])
                                fprintf(stderr, Name ": No devices listed in %s\n", configfile?configfile:DefaultConfFile);
                                exit(1);
                        }
-                       rv = Examine(devlist, scan?(verbose>1?0:verbose+1):brief, scan, SparcAdjust, ss);
+                       rv = Examine(devlist, scan?(verbose>1?0:verbose+1):brief, scan, SparcAdjust, ss, homehost);
                } else {
                        if (devlist == NULL) {
                                if (devmode=='D' && scan) {
@@ -1050,7 +1111,7 @@ int main(int argc, char *argv[])
                                                                e->dev);
                                                        continue;
                                                }
-                                               rv |= Detail(name, verbose>1?0:verbose+1, test);
+                                               rv |= Detail(name, verbose>1?0:verbose+1, test, homehost);
                                                put_md_name(name);
                                        }
                                } else  if (devmode == 'S' && scan) {
@@ -1074,7 +1135,7 @@ int main(int argc, char *argv[])
                                                                        e->dev);
                                                                continue;
                                                        }
-                                                       mdfd = open_mddev(name, 0);
+                                                       mdfd = open_mddev(name, 1);
                                                        if (mdfd >= 0) {
                                                                if (Manage_runstop(name, mdfd, -1, !last))
                                                                        err = 1;
@@ -1095,7 +1156,7 @@ int main(int argc, char *argv[])
                        for (dv=devlist ; dv; dv=dv->next) {
                                switch(dv->disposition) {
                                case 'D':
-                                       rv |= Detail(dv->devname, brief?1+verbose:0, test); continue;
+                                       rv |= Detail(dv->devname, brief?1+verbose:0, test, homehost); continue;
                                case 'K': /* Zero superblock */
                                        rv |= Kill(dv->devname, force, quiet); continue;
                                case 'Q':
@@ -1103,7 +1164,7 @@ int main(int argc, char *argv[])
                                case 'X':
                                        rv |= ExamineBitmap(dv->devname, brief, ss); continue;
                                }
-                               mdfd = open_mddev(dv->devname, 0);
+                               mdfd = open_mddev(dv->devname, 1);
                                if (mdfd>=0) {
                                        switch(dv->disposition) {
                                        case 'R':