[PATCH] Add support for highpoint ataraid to volume_id to suppress

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

diff --git a/extras/volume_id/volume_id.c b/extras/volume_id/volume_id.c
index 0b43bc8efb84ffd6afd263abce483b840c538ded..42d658895f11ffe8f68d37eb170ee85c78527fbf 100644 (file)
--- a/extras/volume_id/volume_id.c
+++ b/extras/volume_id/volume_id.c
@@ -263,6 +263,36 @@ static void free_buffer(struct volume_id *id)
        }
 }
 
+#define HPT37X_CONFIG_OFF              0x1200
+#define HPT37X_MAGIC_OK                        0x5a7816f0
+#define HPT37X_MAGIC_BAD               0x5a7816fd
+static int probe_highpoint_ataraid(struct volume_id *id, __u64 off)
+{
+       struct hpt37x {
+               __u8    filler1[32];
+               __u32   magic;
+               __u32   magic_0;
+               __u32   magic_1;
+       } __attribute__((packed)) *hpt;
+
+       const __u8 *buf;
+
+       buf = get_buffer(id, off + HPT37X_CONFIG_OFF, 0x200);
+       if (buf == NULL)
+               return -1;
+
+       hpt = (struct hpt37x *) buf;
+
+       if (hpt->magic != HPT37X_MAGIC_OK && hpt->magic != HPT37X_MAGIC_BAD)
+               return -1;
+
+       id->usage_id = VOLUME_ID_RAID;
+       id->type_id = VOLUME_ID_HPTRAID;
+       id->type = "hpt_ataraid_member";
+
+       return 0;
+}
+
 #define LVM1_SB_OFF                    0x400
 #define LVM1_MAGIC                     "HM"
 static int probe_lvm1(struct volume_id *id, __u64 off)
@@ -2038,6 +2068,9 @@ int volume_id_probe(struct volume_id *id,
        case VOLUME_ID_LVM2:
                rc = probe_lvm2(id, off);
                break;
+       case VOLUME_ID_HPTRAID:
+               rc = probe_highpoint_ataraid(id, off);
+               break;
        case VOLUME_ID_ALL:
        default:
                /* probe for raid first, cause fs probes may be successful on raid members */
@@ -2048,14 +2081,14 @@ int volume_id_probe(struct volume_id *id,
                if (rc == 0)
                        break;
                rc = probe_lvm2(id, off);
+               if (rc == 0)
+                       break;
+               rc = probe_highpoint_ataraid(id, off);
                if (rc == 0)
                        break;
 
                /* signature in the first block, only small buffer needed */
                rc = probe_msdos_part_table(id, off);
-               if (rc == 0)
-                       break;
-               rc = probe_ntfs(id, off);
                if (rc == 0)
                        break;
                rc = probe_vfat(id, off);
@@ -2093,6 +2126,9 @@ int volume_id_probe(struct volume_id *id,
                if (rc == 0)
                        break;
                rc = probe_ufs(id, off);
+               if (rc == 0)
+                       break;
+               rc = probe_ntfs(id, off);
                if (rc == 0)
                        break;