Create missing /dev files where needed.

[thirdparty/mdadm.git] / config.c

diff --git a/config.c b/config.c
index f23da81615113e589f8f64a7a20a379a4f4a900c..1408b252d22d53110dda3f7f3ea9a4ee2548b2ec 100644 (file)
--- a/config.c
+++ b/config.c
@@ -70,7 +70,12 @@
 #ifndef CONFFILE
 #define CONFFILE "/etc/mdadm.conf"
 #endif
+#ifndef CONFFILE2
+/* for Debian compatibility .... */
+#define CONFFILE2 "/etc/mdadm/mdadm.conf"
+#endif
 char DefaultConfFile[] = CONFFILE;
+char DefaultAltConfFile[] = CONFFILE2;
 
 char *keywords[] = { "device", "array", "mailaddr", "program", NULL };
 
@@ -214,6 +219,8 @@ mddev_dev_t load_partitions(void)
        while (fgets(buf, 1024, f)) {
                int major, minor;
                char *name, *mp;
+               mddev_dev_t d;
+
                buf[1023] = '\0';
                if (buf[0] != ' ')
                        continue;
@@ -222,15 +229,12 @@ mddev_dev_t load_partitions(void)
                        continue;
                minor = strtoul(mp, NULL, 10);
 
-               name = map_dev(major, minor);
-               if (name) {
-                       mddev_dev_t d;
+               name = map_dev(major, minor, 1);
 
-                       d = malloc(sizeof(*d));
-                       d->devname = strdup(name);
-                       d->next = rv;
-                       rv = d;
-               }
+               d = malloc(sizeof(*d));
+               d->devname = strdup(name);
+               d->next = rv;
+               rv = d;
        }
        fclose(f);
        return rv;
@@ -274,6 +278,10 @@ void arrayline(char *line)
        mis.devname = NULL;
        mis.spare_group = NULL;
        mis.autof = 0;
+       mis.next = NULL;
+       mis.st = NULL;
+       mis.bitmap_fd = -1;
+       mis.name[0] = 0;
 
        for (w=dl_next(line); w!=line; w=dl_next(w)) {
                if (w[0] == '/') {
@@ -292,7 +300,7 @@ void arrayline(char *line)
                                        fprintf(stderr, Name ": bad uuid: %s\n", w);
                        }
                } else if (strncasecmp(w, "super-minor=", 12)==0 ) {
-                       if (mis.super_minor >= 0)
+                       if (mis.super_minor != UnSet)
                                fprintf(stderr, Name ": only specify super-minor once, %s ignored.\n",
                                        w);
                        else {
@@ -304,6 +312,15 @@ void arrayline(char *line)
                                        mis.super_minor = UnSet;
                                }
                        }
+               } else if (strncasecmp(w, "name=", 5)==0) {
+                       if (mis.name[0])
+                               fprintf(stderr, Name ": only specify name once, %s ignored.\n",
+                                       w);
+                       else if (strlen(w+5) > 32)
+                               fprintf(stderr, Name ": name too long, ignoring %s\n", w);
+                       else
+                               strcpy(mis.name, w+5);
+
                } else if (strncasecmp(w, "devices=", 8 ) == 0 ) {
                        if (mis.devices)
                                fprintf(stderr, Name ": only specify devices once (use a comma separated list). %s ignored\n",
@@ -328,6 +345,15 @@ void arrayline(char *line)
                } else if (strncasecmp(w, "spares=", 7) == 0 ) {
                        /* for warning if not all spares present */
                        mis.spare_disks = atoi(w+7);
+               } else if (strncasecmp(w, "metadata=", 9) == 0) {
+                       /* style of metadata on the devices. */
+                       int i;
+                       
+                       for(i=0; superlist[i] && !mis.st; i++)
+                               mis.st = superlist[i]->match_metadata_desc(w+9);
+
+                       if (!mis.st)
+                               fprintf(stderr, Name ": metadata format %s unknown, ignored.\n", w+9);
                } else if (strncasecmp(w, "auto=", 5) == 0 ) {
                        /* whether to create device special files as needed */
                        if (strcasecmp(w+5, "no")==0)
@@ -335,7 +361,7 @@ void arrayline(char *line)
                        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 */
+                               /* There might be digits, and maybe a hyphen, at the end */
                                char *e = w+5 + strlen(w+5);
                                int num = 4;
                                int len;
@@ -363,7 +389,7 @@ void arrayline(char *line)
        }
        if (mis.devname == NULL)
                fprintf(stderr, Name ": ARRAY line with no device\n");
-       else if (mis.uuid_set == 0 && mis.devices == NULL && mis.super_minor == UnSet)
+       else if (mis.uuid_set == 0 && mis.devices == NULL && mis.super_minor == UnSet && mis.name[0] == 0)
                fprintf(stderr, Name ": ARRAY line %s has no identity information.\n", mis.devname);
        else {
                mi = malloc(sizeof(*mi));
@@ -421,12 +447,27 @@ void load_conffile(char *conffile)
                return;
        }
        if (strcmp(conffile, "partitions")==0) {
-               devline("DEV partitions");
+               char *list = dl_strdup("DEV");
+               dl_init(list);
+               dl_add(list, dl_strdup("partitions"));
+               devline(list);
+               free_line(list);
                loaded = 1;
                return;
        }
        f = fopen(conffile, "r");
-       if (f ==NULL)
+       /* Debian chose to relocate mdadm.conf into /etc/mdadm/.
+        * To allow Debian users to compile from clean source and still
+        * have a working mdadm, we read /etc/mdadm/mdadm.conf
+        * if /etc/mdadm.conf doesn't exist
+        */
+       if (f == NULL &&
+           conffile == DefaultConfFile) {
+               f = fopen(DefaultAltConfFile, "r");
+               if (f)
+                       conffile = DefaultAltConfFile;
+       }
+       if (f == NULL)
                return;
 
        loaded = 1;