libvolume_id: recognize swap partitions with a tuxonice hibernate image

[elogind.git] / extras / volume_id / lib / linux_raid.c

diff --git a/extras/volume_id/lib/linux_raid.c b/extras/volume_id/lib/linux_raid.c
index 8ce2eb52daa9ff1f84054725334a64ce1ae7227f..96ae7c32e3f730f373c8cb172df79af13de134e2 100644 (file)
--- a/extras/volume_id/lib/linux_raid.c
+++ b/extras/volume_id/lib/linux_raid.c
@@ -66,7 +66,7 @@ static int volume_id_probe_linux_raid0(struct volume_id *id, uint64_t off, uint6
                uint8_t bytes[16];
        } uuid;
 
-       info("probing at offset 0x%llx, size 0x%llx",
+       info("probing at offset 0x%llx, size 0x%llx\n",
            (unsigned long long) off, (unsigned long long) size);
        if (size < 0x10000)
                return -1;
@@ -87,7 +87,7 @@ static int volume_id_probe_linux_raid0(struct volume_id *id, uint64_t off, uint6
                        uuid.ints[2] = 0;
                        uuid.ints[3] = 0;
                }
-               volume_id_set_uuid(id, uuid.bytes, UUID_DCE);
+               volume_id_set_uuid(id, uuid.bytes, 0, UUID_MD);
                snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u.%u",
                         le32_to_cpu(mdp0->major_version),
                         le32_to_cpu(mdp0->minor_version),
@@ -103,7 +103,7 @@ static int volume_id_probe_linux_raid0(struct volume_id *id, uint64_t off, uint6
                        uuid.ints[2] = 0;
                        uuid.ints[3] = 0;
                }
-               volume_id_set_uuid(id, uuid.bytes, UUID_DCE);
+               volume_id_set_uuid(id, uuid.bytes, 0, UUID_MD);
                snprintf(id->type_version, sizeof(id->type_version)-1, "%u.%u.%u",
                         be32_to_cpu(mdp0->major_version),
                         be32_to_cpu(mdp0->minor_version),
@@ -120,7 +120,7 @@ static int volume_id_probe_linux_raid1(struct volume_id *id, uint64_t off, uint6
 {
        const uint8_t *buf;
 
-       info("probing at offset 0x%llx, size 0x%llx",
+       info("probing at offset 0x%llx, size 0x%llx\n",
            (unsigned long long) off, (unsigned long long) size);
 
        buf = volume_id_get_buffer(id, off, 0x800);
@@ -131,10 +131,12 @@ static int volume_id_probe_linux_raid1(struct volume_id *id, uint64_t off, uint6
        if (le32_to_cpu(mdp1->magic) != MD_SB_MAGIC)
                return -1;
 
-       volume_id_set_uuid(id, mdp1->set_uuid, UUID_DCE);
+       if (le32_to_cpu(mdp1->major_version) != 1)
+               return -1;
+
+       volume_id_set_uuid(id, mdp1->set_uuid, 0, UUID_MD);
        volume_id_set_label_raw(id, mdp1->set_name, 32);
        volume_id_set_label_string(id, mdp1->set_name, 32);
-       snprintf(id->type_version, sizeof(id->type_version)-1, "%u", le32_to_cpu(mdp1->major_version));
        volume_id_set_usage(id, VOLUME_ID_RAID);
        id->type = "linux_raid_member";
        return 0;
@@ -142,23 +144,31 @@ static int volume_id_probe_linux_raid1(struct volume_id *id, uint64_t off, uint6
 
 int volume_id_probe_linux_raid(struct volume_id *id, uint64_t off, uint64_t size)
 {
-       uint64_t sboff = (size & ~(MD_RESERVED_BYTES - 1)) - MD_RESERVED_BYTES;
+       uint64_t sboff;
 
        /* version 0 at the end of the device */
+       sboff = (size & ~(MD_RESERVED_BYTES - 1)) - MD_RESERVED_BYTES;
        if (volume_id_probe_linux_raid0(id, off + sboff, size) == 0)
                return 0;
 
        /* version 1.0 at the end of the device */
-       if (volume_id_probe_linux_raid1(id, off + sboff, size) == 0)
+       sboff = (size & ~(0x1000 - 1)) - 0x2000;
+       if (volume_id_probe_linux_raid1(id, off + sboff, size) == 0) {
+               strcpy(id->type_version, "1.0");
                return 0;
+       }
 
        /* version 1.1 at the start of the device */
-       if (volume_id_probe_linux_raid1(id, off, size) == 0)
+       if (volume_id_probe_linux_raid1(id, off, size) == 0) {
+               strcpy(id->type_version, "1.1");
                return 0;
+       }
 
        /* version 1.2 at 4k offset from the start */
-       if (volume_id_probe_linux_raid1(id, off + 0x1000, size) == 0)
+       if (volume_id_probe_linux_raid1(id, off + 0x1000, size) == 0) {
+               strcpy(id->type_version, "1.2");
                return 0;
+       }
 
        return -1;
 }