|
 |
0b5e55 |
diff -up util-linux-2.23.2/libblkid/src/partitions/gpt.c.kzak util-linux-2.23.2/libblkid/src/partitions/gpt.c
|
|
|
0b5e55 |
--- util-linux-2.23.2/libblkid/src/partitions/gpt.c.kzak 2013-07-30 10:39:26.206738239 +0200
|
|
|
0b5e55 |
+++ util-linux-2.23.2/libblkid/src/partitions/gpt.c 2014-01-23 11:06:17.364011293 +0100
|
|
|
0b5e55 |
@@ -156,13 +156,15 @@ static int last_lba(blkid_probe pr, uint
|
|
|
0b5e55 |
* Note that the PMBR detection is optional (enabled by default) and could be
|
|
|
0b5e55 |
* disabled by BLKID_PARTS_FOPCE_GPT flag (see also blkid_paertitions_set_flags()).
|
|
|
0b5e55 |
*/
|
|
|
0b5e55 |
-static int is_pmbr_valid(blkid_probe pr)
|
|
|
0b5e55 |
+static int is_pmbr_valid(blkid_probe pr, int *has)
|
|
|
0b5e55 |
{
|
|
|
0b5e55 |
int flags = blkid_partitions_get_flags(pr);
|
|
|
0b5e55 |
unsigned char *data;
|
|
|
0b5e55 |
struct dos_partition *p;
|
|
|
0b5e55 |
int i;
|
|
|
0b5e55 |
|
|
|
0b5e55 |
+ if (has)
|
|
|
0b5e55 |
+ *has = 0;
|
|
|
0b5e55 |
if (flags & BLKID_PARTS_FORCE_GPT)
|
|
|
0b5e55 |
goto ok; /* skip PMBR check */
|
|
|
0b5e55 |
|
|
|
0b5e55 |
@@ -182,6 +184,8 @@ static int is_pmbr_valid(blkid_probe pr)
|
|
|
0b5e55 |
failed:
|
|
|
0b5e55 |
return 0;
|
|
|
0b5e55 |
ok:
|
|
|
0b5e55 |
+ if (has)
|
|
|
0b5e55 |
+ *has = 1;
|
|
|
0b5e55 |
return 1;
|
|
|
0b5e55 |
}
|
|
|
0b5e55 |
|
|
|
0b5e55 |
@@ -305,7 +309,7 @@ static int probe_gpt_pt(blkid_probe pr,
|
|
|
0b5e55 |
if (last_lba(pr, &lastlba))
|
|
|
0b5e55 |
goto nothing;
|
|
|
0b5e55 |
|
|
|
0b5e55 |
- if (!is_pmbr_valid(pr))
|
|
|
0b5e55 |
+ if (!is_pmbr_valid(pr, NULL))
|
|
|
0b5e55 |
goto nothing;
|
|
|
0b5e55 |
|
|
|
0b5e55 |
h = get_gpt_header(pr, &hdr, &e, (lba = GPT_PRIMARY_LBA), lastlba);
|
|
|
0b5e55 |
@@ -410,3 +414,39 @@ const struct blkid_idinfo gpt_pt_idinfo
|
|
|
0b5e55 |
.magics = BLKID_NONE_MAGIC
|
|
|
0b5e55 |
};
|
|
|
0b5e55 |
|
|
|
0b5e55 |
+
|
|
|
0b5e55 |
+
|
|
|
0b5e55 |
+/* probe for *alone* protective MBR */
|
|
|
0b5e55 |
+static int probe_pmbr_pt(blkid_probe pr,
|
|
|
0b5e55 |
+ const struct blkid_idmag *mag __attribute__((__unused__)))
|
|
|
0b5e55 |
+{
|
|
|
0b5e55 |
+ int has = 0;
|
|
|
0b5e55 |
+ struct gpt_entry *e;
|
|
|
0b5e55 |
+ uint64_t lastlba = 0;
|
|
|
0b5e55 |
+ struct gpt_header hdr;
|
|
|
0b5e55 |
+
|
|
|
0b5e55 |
+ if (last_lba(pr, &lastlba))
|
|
|
0b5e55 |
+ goto nothing;
|
|
|
0b5e55 |
+
|
|
|
0b5e55 |
+ is_pmbr_valid(pr, &has;;
|
|
|
0b5e55 |
+ if (!has)
|
|
|
0b5e55 |
+ goto nothing;
|
|
|
0b5e55 |
+
|
|
|
0b5e55 |
+ if (!get_gpt_header(pr, &hdr, &e, GPT_PRIMARY_LBA, lastlba) &&
|
|
|
0b5e55 |
+ !get_gpt_header(pr, &hdr, &e, lastlba, lastlba))
|
|
|
0b5e55 |
+ return 0;
|
|
|
0b5e55 |
+nothing:
|
|
|
0b5e55 |
+ return 1;
|
|
|
0b5e55 |
+}
|
|
|
0b5e55 |
+
|
|
|
0b5e55 |
+const struct blkid_idinfo pmbr_pt_idinfo =
|
|
|
0b5e55 |
+{
|
|
|
0b5e55 |
+ .name = "PMBR",
|
|
|
0b5e55 |
+ .probefunc = probe_pmbr_pt,
|
|
|
0b5e55 |
+ .magics =
|
|
|
0b5e55 |
+ {
|
|
|
0b5e55 |
+ { .magic = "\x55\xAA", .len = 2, .sboff = 510 },
|
|
|
0b5e55 |
+ { NULL }
|
|
|
0b5e55 |
+ }
|
|
|
0b5e55 |
+};
|
|
|
0b5e55 |
+
|
|
|
0b5e55 |
diff -up util-linux-2.23.2/libblkid/src/partitions/partitions.c.kzak util-linux-2.23.2/libblkid/src/partitions/partitions.c
|
|
|
0b5e55 |
--- util-linux-2.23.2/libblkid/src/partitions/partitions.c.kzak 2013-07-30 10:39:26.207738249 +0200
|
|
|
0b5e55 |
+++ util-linux-2.23.2/libblkid/src/partitions/partitions.c 2014-01-23 11:06:17.364011293 +0100
|
|
|
0b5e55 |
@@ -125,6 +125,7 @@ static const struct blkid_idinfo *idinfo
|
|
|
0b5e55 |
&sun_pt_idinfo,
|
|
|
0b5e55 |
&dos_pt_idinfo,
|
|
|
0b5e55 |
&gpt_pt_idinfo,
|
|
|
0b5e55 |
+ &pmbr_pt_idinfo, /* always after GPT */
|
|
|
0b5e55 |
&mac_pt_idinfo,
|
|
|
0b5e55 |
&ultrix_pt_idinfo,
|
|
|
0b5e55 |
&bsd_pt_idinfo,
|
|
|
0b5e55 |
diff -up util-linux-2.23.2/libblkid/src/partitions/partitions.h.kzak util-linux-2.23.2/libblkid/src/partitions/partitions.h
|
|
|
0b5e55 |
--- util-linux-2.23.2/libblkid/src/partitions/partitions.h.kzak 2013-07-30 10:39:26.208738259 +0200
|
|
|
0b5e55 |
+++ util-linux-2.23.2/libblkid/src/partitions/partitions.h 2014-01-23 11:06:17.364011293 +0100
|
|
|
0b5e55 |
@@ -59,6 +59,7 @@ extern const struct blkid_idinfo mac_pt_
|
|
|
0b5e55 |
extern const struct blkid_idinfo dos_pt_idinfo;
|
|
|
0b5e55 |
extern const struct blkid_idinfo minix_pt_idinfo;
|
|
|
0b5e55 |
extern const struct blkid_idinfo gpt_pt_idinfo;
|
|
|
0b5e55 |
+extern const struct blkid_idinfo pmbr_pt_idinfo;
|
|
|
0b5e55 |
extern const struct blkid_idinfo ultrix_pt_idinfo;
|
|
|
0b5e55 |
|
|
|
0b5e55 |
#endif /* BLKID_PARTITIONS_H */
|