Add 'supertype' arg to almost all metadata methods.

[thirdparty/mdadm.git] / Query.c

diff --git a/Query.c b/Query.c
index 95d69147a0591b9186ada05aaa5f7d96a33e2182..19b2ce5e621c226445003cb5ec631b6b0371142b 100644 (file)
--- a/Query.c
+++ b/Query.c
@@ -1,7 +1,7 @@
 /*
  * mdadm - manage Linux "md" devices aka RAID arrays.
  *
- * Copyright (C) 2002 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (C) 2002-2006 Neil Brown <neilb@suse.de>
  *
  *
  *    This program is free software; you can redistribute it and/or modify
@@ -34,17 +34,19 @@
 int Query(char *dev)
 {
        /* Give a brief description of the device,
-        * whether it is an md device and whether it has 
+        * whether it is an md device and whether it has
         * a superblock
         */
        int fd = open(dev, O_RDONLY, 0);
        int vers;
        int ioctlerr;
        int superror, superrno;
-       mdp_super_t super;
+       struct mdinfo info;
        mdu_array_info_t array;
+       void *super;
+       struct supertype *st = NULL;
+
        unsigned long long larray_size;
-       unsigned long array_size;
        struct stat stb;
        char *mddev;
        mdu_disk_info_t disc;
@@ -60,25 +62,15 @@ int Query(char *dev)
        if (ioctl(fd, GET_ARRAY_INFO, &array)<0)
                ioctlerr = errno;
        else ioctlerr = 0;
-       superror = load_super(fd, &super);
-       superrno = errno;
- 
+
        fstat(fd, &stb);
 
        if (vers>=9000 && !ioctlerr) {
-#ifdef BLKGETSIZE64
-               if (ioctl(fd, BLKGETSIZE64, &larray_size)==0)
-                       ;
-               else
-#endif
-                       if (ioctl(fd, BLKGETSIZE, &array_size)==0) {
-                               larray_size = array_size;
-                               larray_size <<= 9;
-                       } else larray_size = 0;
+               if (!get_dev_size(fd, NULL, &larray_size))
+                       larray_size = 0;
        }
-       close(fd);
 
-       if (vers < 0) 
+       if (vers < 0)
                printf("%s: is not an md array\n", dev);
        else if (vers < 9000)
                printf("%s: is an md device, but kernel cannot provide details\n", dev);
@@ -95,56 +87,44 @@ int Query(char *dev)
                       array.raid_disks,
                       array.spare_disks, array.spare_disks==1?"":"s");
        }
-       switch(superror) {
-       case 1:
-               printf("%s: cannot find device size: %s\n",
-                      dev, strerror(superrno));
-               break;
-       case 2:
-               printf("%s: is too small to be an md component.\n",
-                      dev);
-               break;
-       case 3:
-               printf("%s: Cannot seek to superblock: %s\n",
-                      dev, strerror(superrno));
-               break;
-       case 4:
-               printf("%s: Cannot read md superblock.\n",
-                      dev);
-               break;
-       case 5:
-               printf("%s: No md super block found, not an md component.\n",
-                      dev);
-               break;
-       case 6:
-               printf("%s: md superblock present with wrong version: %d\n",
-                      dev, super.major_version);
-               break;
-       default:
+       st = guess_super(fd);
+       if (st) {
+               superror = st->ss->load_super(st, fd, &super, dev);
+               superrno = errno;
+       } else
+               superror = -1;
+       close(fd);
+       if (superror == 0) {
                /* array might be active... */
-               mddev = get_md_name(super.md_minor);
-               disc.number = super.this_disk.number;
-               activity = "undetected";
-               if (mddev && (fd = open(mddev, O_RDONLY))>=0) {
-                       if (md_get_version(fd) >= 9000 &&       
-                           ioctl(fd, GET_ARRAY_INFO, &array)>= 0) {
-                               if (ioctl(fd, GET_DISK_INFO, &disc) >= 0 &&
-                                   makedev((unsigned)disc.major,(unsigned)disc.minor) == stb.st_rdev)
-                                       activity = "active";
-                               else
-                                       activity = "mismatch";
+               st->ss->getinfo_super(st, &info, super);
+               if (st->ss->major == 0) {
+                       mddev = get_md_name(info.array.md_minor);
+                       disc.number = info.disk.number;
+                       activity = "undetected";
+                       if (mddev && (fd = open(mddev, O_RDONLY))>=0) {
+                               if (md_get_version(fd) >= 9000 &&
+                                   ioctl(fd, GET_ARRAY_INFO, &array)>= 0) {
+                                       if (ioctl(fd, GET_DISK_INFO, &disc) >= 0 &&
+                                           makedev((unsigned)disc.major,(unsigned)disc.minor) == stb.st_rdev)
+                                               activity = "active";
+                                       else
+                                               activity = "mismatch";
+                               }
+                               close(fd);
                        }
-                       close(fd);
+               } else {
+                       activity = "unknown";
+                       mddev = "array";
                }
-               printf("%s: device %d in %d device %s %s md%d.  Use mdadm --examine for more detail.\n",
-                      dev, 
-                      super.this_disk.number, super.raid_disks,
+               printf("%s: device %d in %d device %s %s %s.  Use mdadm --examine for more detail.\n",
+                      dev,
+                      info.disk.number, info.array.raid_disks,
                       activity,
-                      map_num(pers, super.level),
-                      super.md_minor);
-               break;
+                      map_num(pers, info.array.level),
+                      mddev);
+               if (st->ss->major == 0)
+                       put_md_name(mddev);
        }
        return 0;
 }
 
-