]> git.ipfire.org Git - thirdparty/mdadm.git/blobdiff - config.c
mdadm-1.6.0
[thirdparty/mdadm.git] / config.c
index 4fc381c046c109f5b50e5f3d3f0fa5e2fa322764..1671d266ef55bb3a2fb7e078de76fb7aa9cc028c 100644 (file)
--- a/config.c
+++ b/config.c
@@ -1,5 +1,5 @@
 /*
- * mdctl - manage Linux "md" devices aka RAID arrays.
+ * mdadm - manage Linux "md" devices aka RAID arrays.
  *
  * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
  *
  *           Australia
  */
 
-#include       "mdctl.h"
+#include       "mdadm.h"
 #include       "dlink.h"
+#include       <sys/dir.h>
 #include       <glob.h>
 #include       <fnmatch.h>
+#include       <ctype.h>
 
 /*
  * Read the config file
  *
  */
 
-char DefaultConfFile[] = "/etc/mdctl.conf";
+#ifndef CONFFILE
+#define CONFFILE "/etc/mdadm.conf"
+#endif
+char DefaultConfFile[] = CONFFILE;
 
-char *keywords[] = { "device", "array", NULL };
+char *keywords[] = { "device", "array", "mailaddr", "program", NULL };
 
 /*
  * match_keyword returns an index into the keywords array, or -1 for no match
@@ -197,9 +202,40 @@ struct conf_dev {
     char *name;
 } *cdevlist = NULL;
 
+void load_partitions(void)
+{
+       FILE *f = fopen("/proc/partitions", "r");
+       char buf[1024];
+       if (f == NULL) {
+               fprintf(stderr, Name ": cannot open /proc/partitions\n");
+               return;
+       }
+       while (fgets(buf, 1024, f)) {
+               int major, minor;
+               char *name, *mp;
+               buf[1023] = '\0';
+               if (buf[0] != ' ')
+                       continue;
+               major = strtoul(buf, &mp, 10);
+               if (mp == buf || *mp != ' ') 
+                       continue;
+               minor = strtoul(mp, NULL, 10);
+
+               name = map_dev(major, minor);
+               if (name) {
+                       struct conf_dev *cd;
+
+                       cd = malloc(sizeof(*cd));
+                       cd->name = strdup(name);
+                       cd->next = cdevlist;
+                       cdevlist = cd;
+               }
+       }
+       fclose(f);
+}
 
 
-int devline(char *line) 
+void devline(char *line) 
 {
        char *w;
        struct conf_dev *cd;
@@ -210,6 +246,9 @@ int devline(char *line)
                        cd->name = strdup(w);
                        cd->next = cdevlist;
                        cdevlist = cd;
+               } else if (strcasecmp(w, "partitions") == 0) {
+                       /* read /proc/partitions, and look major/minor up in /dev */
+                       load_partitions();
                } else {
                        fprintf(stderr, Name ": unreconised word on DEVICE line: %s\n",
                                w);
@@ -228,11 +267,14 @@ void arrayline(char *line)
        mddev_ident_t mi;
 
        mis.uuid_set = 0;
-       mis.super_minor = -1;
-       mis.level = -10;
-       mis.raid_disks = -1;
+       mis.super_minor = UnSet;
+       mis.level = UnSet;
+       mis.raid_disks = UnSet;
+       mis.spare_disks = UnSet;
        mis.devices = NULL;
        mis.devname = NULL;
+       mis.spare_group = NULL;
+       mis.autof = 0;
 
        for (w=dl_next(line); w!=line; w=dl_next(w)) {
                if (w[0] == '/') {
@@ -260,7 +302,7 @@ void arrayline(char *line)
                                if (w[12]==0 || endptr[0]!=0 || mis.super_minor < 0) {
                                        fprintf(stderr, Name ": invalid super-minor number: %s\n",
                                                w);
-                                       mis.super_minor = -1;
+                                       mis.super_minor = UnSet;
                                }
                        }
                } else if (strncasecmp(w, "devices=", 8 ) == 0 ) {
@@ -280,14 +322,48 @@ void arrayline(char *line)
                        mis.level = map_name(pers, w+6);
                } else if (strncasecmp(w, "disks=", 6) == 0 ) {
                        /* again, for compat */
-                       mis.raid_disks = atoi(w+6);                        
+                       mis.raid_disks = atoi(w+6);
+               } else if (strncasecmp(w, "num-devices=", 12) == 0 ) {
+                       /* again, for compat */
+                       mis.raid_disks = atoi(w+12);
+               } else if (strncasecmp(w, "spares=", 7) == 0 ) {
+                       /* for warning if not all spares present */
+                       mis.spare_disks = atoi(w+7);
+               } else if (strncasecmp(w, "auto=", 5) == 0 ) {
+                       /* whether to create device special files as needed */
+                       if (strcasecmp(w+5, "no")==0)
+                               mis.autof = 0;
+                       else if (strcasecmp(w+5,"yes")==0 || strcasecmp(w+5,"md")==0)
+                               mis.autof = -1;
+                       else {
+                               /* There might be digits, and maybe a hypen, at the end */
+                               char *e = w+5 + strlen(w+5);
+                               int num = 4;
+                               int len;
+                               while (e > w+5 && isdigit(e[-1]))
+                                       e--;
+                               if (*e) {
+                                       num = atoi(e);
+                                       if (num <= 0) num = 1;
+                               }
+                               if (e > w+5 && e[-1] == '-')
+                                       e--;
+                               len = e - (w+5);
+                               if ((len == 3 && strncasecmp(w+5,"mdp",3)==0) ||
+                                   (len == 1 && strncasecmp(w+5,"p",1)==0) ||
+                                   (len >= 4 && strncasecmp(w+5,"part",4)==0))
+                                       mis.autof = num;
+                               else 
+                                       fprintf(stderr, Name ": auto type of \"%s\" ignored for %s\n",
+                                               w+5, mis.devname?mis.devname:"unlabeled-array");
+                       }
                } else {
                        fprintf(stderr, Name ": unrecognised word on ARRAY line: %s\n",
                                w);
                }
        }
        if (mis.devname == NULL)
-               fprintf(stderr, Name ": ARRAY line with a device\n");
+               fprintf(stderr, Name ": ARRAY line with no device\n");
        else if (mis.uuid_set == 0 && mis.devices == NULL && mis.super_minor < 0)
                fprintf(stderr, Name ": ARRAY line %s has no identity information.\n", mis.devname);
        else {
@@ -299,7 +375,37 @@ void arrayline(char *line)
                mddevlp = &mi->next;
        }
 }
-                   
+
+static char *alert_email = NULL;
+void mailline(char *line)
+{
+       char *w;
+
+       for (w=dl_next(line); w != line ; w=dl_next(w)) {
+               if (alert_email == NULL)
+                       alert_email = strdup(w);
+               else
+                       fprintf(stderr, Name ": excess address on MAIL line: %s - ignored\n",
+                               w);
+       }
+}
+
+
+static char *alert_program = NULL;
+void programline(char *line)
+{
+       char *w;
+
+       for (w=dl_next(line); w != line ; w=dl_next(w)) {
+               if (alert_program == NULL)
+                       alert_program = strdup(w);
+               else
+                       fprintf(stderr, Name ": excess program on PROGRAM line: %s - ignored\n",
+                               w);
+       }
+}
+
+
 int loaded = 0;
 
 void load_conffile(char *conffile)
@@ -311,6 +417,15 @@ void load_conffile(char *conffile)
        if (conffile == NULL)
                conffile = DefaultConfFile;
 
+       if (strcmp(conffile, "none") == 0) {
+               loaded = 1;
+               return;
+       }
+       if (strcmp(conffile, "partitions")==0) {
+               load_partitions();
+               loaded = 1;
+               return;
+       }
        f = fopen(conffile, "r");
        if (f ==NULL)
                return;
@@ -321,19 +436,38 @@ void load_conffile(char *conffile)
                case 0: /* DEVICE */
                        devline(line);
                        break;
-               case 1:
+               case 1: /* ARRAY */
                        arrayline(line);
                        break;
+               case 2: /* MAIL */
+                       mailline(line);
+                       break;
+               case 3: /* PROGRAM */
+                       programline(line);
+                       break;
                default:
                        fprintf(stderr, Name ": Unknown keyword %s\n", line);
                }
                free_line(line);
        }
     
+       fclose(f);
 
 /*    printf("got file\n"); */
 }
 
+char *conf_get_mailaddr(char *conffile)
+{
+       load_conffile(conffile);
+       return alert_email;
+}
+
+char *conf_get_program(char *conffile)
+{
+       load_conffile(conffile);
+       return alert_program;
+}
+
 
 mddev_ident_t conf_get_ident(char *conffile, char *dev)
 {
@@ -351,7 +485,7 @@ mddev_dev_t conf_get_devs(char *conffile)
        struct conf_dev *cd;
        int flags = 0;
        static mddev_dev_t dlist = NULL;
-       int i;
+       unsigned int i;
 
        while (dlist) {
                mddev_dev_t t = dlist;
@@ -366,16 +500,16 @@ mddev_dev_t conf_get_devs(char *conffile)
                glob(cd->name, flags, NULL, &globbuf);
                flags |= GLOB_APPEND;
        }
-
-       for (i=0; i<globbuf.gl_pathc; i++) {
-               mddev_dev_t t = malloc(sizeof(*t));
-               t->devname = strdup(globbuf.gl_pathv[i]);
-               t->next = dlist;
-               dlist = t;
+       if (flags & GLOB_APPEND) {
+               for (i=0; i<globbuf.gl_pathc; i++) {
+                       mddev_dev_t t = malloc(sizeof(*t));
+                       t->devname = strdup(globbuf.gl_pathv[i]);
+                       t->next = dlist;
+                       dlist = t;
 /*     printf("one dev is %s\n", t->devname);*/
+               }
+               globfree(&globbuf);
        }
-       globfree(&globbuf);
-    
 
        return dlist;
 }