]> git.ipfire.org Git - thirdparty/mdadm.git/blobdiff - mdadm.c
Add new mode: --incremental
[thirdparty/mdadm.git] / mdadm.c
diff --git a/mdadm.c b/mdadm.c
index 0df73691fb8b0117fd925023bda393e5b59a45e3..9bec29589c6291ae9af9e7df91df174f83c36e9a 100644 (file)
--- a/mdadm.c
+++ b/mdadm.c
@@ -75,6 +75,7 @@ int main(int argc, char *argv[])
        int force = 0;
        int test = 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
@@ -100,6 +101,8 @@ int main(int argc, char *argv[])
        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;
@@ -177,7 +180,7 @@ int main(int argc, char *argv[])
                case 'a':
                case 'r':
                case 'f':
-               case 6: /* re-add */
+               case ReAdd: /* re-add */
                        if (!mode) {
                                newmode = MANAGE;
                                shortopt = short_bitmap_auto_options;
@@ -189,6 +192,7 @@ int main(int argc, char *argv[])
                case 'C': newmode = CREATE; shortopt = short_bitmap_auto_options; break;
                case 'F': newmode = MONITOR;break;
                case 'G': newmode = GROW; shortopt = short_bitmap_auto_options; break;
+               case 'I': newmode = INCREMENTAL; break;
 
                case '#':
                case 'D':
@@ -199,6 +203,7 @@ int main(int argc, char *argv[])
                case 'S':
                case 'o':
                case 'w':
+               case 'W':
                case 'K': if (!mode) newmode = MISC; break;
                }
                if (mode && newmode == mode) {
@@ -237,6 +242,7 @@ 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;
@@ -265,6 +271,7 @@ int main(int argc, char *argv[])
                case 'C':
                case 'F':
                case 'G':
+               case 'I':
                        continue;
                }
                if (opt == 1) {
@@ -314,6 +321,10 @@ int main(int argc, char *argv[])
                        }
                        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 */
@@ -494,6 +505,12 @@ int main(int argc, char *argv[])
                        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 */
@@ -503,6 +520,7 @@ int main(int argc, char *argv[])
                        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.  "
@@ -570,6 +588,8 @@ int main(int argc, char *argv[])
                                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");
@@ -584,7 +604,13 @@ int main(int argc, char *argv[])
 
                                continue;
                        }
-                       fprintf(stderr, Name ": '--update %s' invalid.  Only 'sparc2.2', 'super-minor', 'uuid', 'resync' or 'summaries' supported\n",update);
+                       if (strcmp(update,"?") == 0 || strcmp(update, "help") == 0)
+                               fprintf(stderr, Name ": ");
+                       else
+                               fprintf(stderr, Name ": '--update=%s' is invalid.  ", update);
+                       fprintf(stderr, "Valid --update options are:\n"
+               "     'sparc2.2', 'super-minor', 'uuid', 'name', 'resync',\n"
+               "     'summaries', 'homehost', 'byteorder', 'devicesize'.\n");
                        exit(2);
 
                case O(ASSEMBLE,NoDegraded): /* --no-degraded */
@@ -600,11 +626,13 @@ int main(int argc, char *argv[])
                                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;
 
@@ -679,6 +707,7 @@ int main(int argc, char *argv[])
                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'):
@@ -721,6 +750,7 @@ int main(int argc, char *argv[])
                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",
@@ -809,6 +839,10 @@ int main(int argc, char *argv[])
                                }
                        }
                        continue;
+
+               case O(INCREMENTAL, 'r'):
+                       rebuild_map = 1;
+                       continue;
                }
                /* We have now processed all the valid options. Anything else is
                 * an error
@@ -837,6 +871,7 @@ int main(int argc, char *argv[])
                        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,stderr);
                exit(0);
@@ -852,6 +887,19 @@ int main(int argc, char *argv[])
                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
@@ -872,6 +920,8 @@ int main(int argc, char *argv[])
                        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);
@@ -904,7 +954,7 @@ int main(int argc, char *argv[])
        }
 
        if (homehost == NULL)
-               homehost = conf_get_homehost(configfile);
+               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;
@@ -924,13 +974,13 @@ int main(int argc, char *argv[])
                if (!rv && readonly < 0)
                        rv = Manage_ro(devlist->devname, mdfd, readonly);
                if (!rv && runstop)
-                       rv = Manage_runstop(devlist->devname, mdfd, runstop, 0);
+                       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(configfile, devlist->devname);
+                       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);
@@ -941,14 +991,14 @@ int main(int argc, char *argv[])
                                if (mdfd < 0)
                                        rv |= 1;
                                else {
-                                       rv |= Assemble(ss, devlist->devname, mdfd, array_ident, configfile,
+                                       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, configfile,
+                       rv = Assemble(ss, devlist->devname, mdfd, &ident,
                                      devlist->next, backup_file,
                                      readonly, runstop, update, homehost, verbose-quiet, force);
                else if (devs_found>0) {
@@ -961,7 +1011,7 @@ int main(int argc, char *argv[])
                                exit(1);
                        }
                        for (dv = devlist ; dv ; dv=dv->next) {
-                               mddev_ident_t array_ident = conf_get_ident(configfile, dv->devname);
+                               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);
@@ -974,43 +1024,99 @@ int main(int argc, char *argv[])
                                        rv |= 1;
                                        continue;
                                }
-                               rv |= Assemble(ss, dv->devname, mdfd, array_ident, configfile,
+                               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(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_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 (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 */
+                                       cnt++;
+                               else {
+                                       rv |= Assemble(ss, array_list->devname, mdfd,
+                                                      array_list,
+                                                      NULL, 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,
+                               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,
                                                               NULL, NULL,
                                                               readonly, runstop, NULL, homehost, verbose-quiet, force);
-                                       close(mdfd);
+                                               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 == 0 && rv == 0) {
+                               fprintf(stderr, Name ": No arrays found in config file\n");
+                               rv = 1;
+                       }
                }
                break;
        case BUILD:
@@ -1042,22 +1148,24 @@ int main(int argc, char *argv[])
 
                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);
                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(configfile);
+                               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, scan, SparcAdjust, ss, homehost);
                } else {
                        if (devlist == NULL) {
@@ -1097,9 +1205,9 @@ 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))
+                                                               if (Manage_runstop(name, mdfd, -1, quiet?1:last?0:-1))
                                                                        err = 1;
                                                                else
                                                                        progress = 1;
@@ -1125,14 +1233,16 @@ int main(int argc, char *argv[])
                                        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, 0);
+                               mdfd = open_mddev(dv->devname, 1);
                                if (mdfd>=0) {
                                        switch(dv->disposition) {
                                        case 'R':
-                                               rv |= Manage_runstop(dv->devname, mdfd, 1, 0); break;
+                                               rv |= Manage_runstop(dv->devname, mdfd, 1, quiet); break;
                                        case 'S':
-                                               rv |= Manage_runstop(dv->devname, mdfd, -1, 0); break;
+                                               rv |= Manage_runstop(dv->devname, mdfd, -1, quiet); break;
                                        case 'o':
                                                rv |= Manage_ro(dv->devname, mdfd, 1); break;
                                        case 'w':
@@ -1157,7 +1267,7 @@ int main(int argc, char *argv[])
                }
                rv= Monitor(devlist, mailaddr, program,
                            delay?delay:60, daemonise, scan, oneshot,
-                           dosyslog, configfile, test, pidfile);
+                           dosyslog, test, pidfile);
                break;
 
        case GROW:
@@ -1190,6 +1300,34 @@ int main(int argc, char *argv[])
                } 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);
        }
        exit(rv);
 }