mdadm-1.5.0

[thirdparty/mdadm.git] / config.c

diff --git a/config.c b/config.c
index a0593e2098a373b7c0b2ad92d4198c212677f3b8..067beb6cf2ce9666686075d8032cbb7bbdb4e8ce 100644 (file)
--- a/config.c
+++ b/config.c
@@ -29,6 +29,7 @@
 
 #include       "mdadm.h"
 #include       "dlink.h"
+#include       <sys/dir.h>
 #include       <glob.h>
 #include       <fnmatch.h>
 
@@ -70,7 +71,7 @@
 #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
@@ -200,9 +201,39 @@ 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;
+               }
+       }
+}
 
 
-int devline(char *line) 
+void devline(char *line) 
 {
        char *w;
        struct conf_dev *cd;
@@ -213,6 +244,9 @@ 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);
@@ -231,11 +265,13 @@ 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;
 
        for (w=dl_next(line); w!=line; w=dl_next(w)) {
                if (w[0] == '/') {
@@ -263,7 +299,7 @@ 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 ) {
@@ -283,7 +319,13 @@ 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 {
                        fprintf(stderr, Name ": unrecognised word on ARRAY line: %s\n",
                                w);
@@ -302,7 +344,37 @@ 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)
@@ -314,6 +386,15 @@ 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;
@@ -324,9 +405,15 @@ 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);
                }
@@ -337,6 +424,18 @@ void load_conffile(char *conffile)
 /*    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)
 {
@@ -354,7 +453,7 @@ 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;
@@ -369,16 +468,16 @@ 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;
 }