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authorKarel Zak2013-02-04 17:46:30 +0100
committerKarel Zak2013-03-11 13:00:55 +0100
commita08dc0ca895e6a46c33ace6a021fbb76a60a0e4e (patch)
treed136c50456f77e66238f70cd0329789edc65a0b4
parentfdisk: (sun) use cpu_to_be* macros, remove other_endian global variable (diff)
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libblkid: move sun PT definition to include/
Signed-off-by: Karel Zak <kzak@redhat.com>
-rw-r--r--include/Makemodule.am3
-rw-r--r--include/pt-sun.h72
-rw-r--r--libblkid/src/partitions/sun.c69
3 files changed, 76 insertions, 68 deletions
diff --git a/include/Makemodule.am b/include/Makemodule.am
index 358a351e1..0c1656d2d 100644
--- a/include/Makemodule.am
+++ b/include/Makemodule.am
@@ -44,4 +44,5 @@ dist_noinst_HEADERS += \
include/wholedisk.h \
include/widechar.h \
include/xalloc.h \
- include/xgetpass.h
+ include/xgetpass.h \
+ include/pt-sun.h
diff --git a/include/pt-sun.h b/include/pt-sun.h
new file mode 100644
index 000000000..5528dd3ee
--- /dev/null
+++ b/include/pt-sun.h
@@ -0,0 +1,72 @@
+#ifndef UTIL_LINUX_PT_SUN_H
+#define UTIL_LINUX_PT_SUN_H
+
+#include <stdint.h>
+
+/* Supported VTOC setting */
+#define SUN_VTOC_SANITY 0x600DDEEE /* magic number */
+#define SUN_VTOC_VERSION 1
+
+#define SUN_MAXPARTITIONS 8
+
+/* Partition IDs */
+#define SUN_TAG_WHOLEDISK 0x05
+
+struct sun_disklabel {
+ unsigned char info[128]; /* Informative text string */
+
+ struct sun_vtoc {
+ uint32_t version; /* version */
+ char volume[8]; /* volume name */
+ uint16_t nparts; /* num of partitions */
+
+ struct sun_info { /* partition information */
+ uint16_t id; /* tag */
+ uint16_t flags;
+ } __attribute__ ((packed)) infos[8];
+
+ uint16_t padding; /* padding */
+ uint32_t bootinfo[3]; /* info needed by mboot */
+ uint32_t sanity; /* magic number */
+ uint32_t reserved[10]; /* padding */
+ uint32_t timestamp[8]; /* partition timestamp */
+ } __attribute__ ((packed)) vtoc;
+
+ uint32_t write_reinstruct; /* sectors to skip, writes */
+ uint32_t read_reinstruct; /* sectors to skip, reads */
+ unsigned char spare[148]; /* padding */
+ uint16_t rspeed; /* disk rotational speed */
+ uint16_t pcylcount; /* physical cylinder count */
+ uint16_t sparecyl; /* extra sects per cylinder */
+ uint16_t obs1;
+ uint16_t obs2;
+ uint16_t ilfact; /* interleave factor */
+ uint16_t ncyl; /* data cylinder count */
+ uint16_t nacyl; /* alt. cylinder count */
+ uint16_t ntrks; /* tracks per cylinder <---- */
+ uint16_t nsect; /* sectors per track <---- */
+ uint16_t obs3;
+ uint16_t obs4;
+
+ struct sun_partition { /* partitions */
+ uint32_t start_cylinder;
+ uint32_t num_sectors;
+ } __attribute__ ((packed)) partitions[8];
+
+ uint16_t magic; /* magic number */
+ uint16_t csum; /* label xor'd checksum */
+} __attribute__ ((packed));
+
+
+static inline uint16_t sun_pt_checksum(struct sun_disklabel *label)
+{
+ uint16_t *ptr = ((uint16_t *) (label + 1)) - 1;
+ uint16_t sum;
+
+ for (sum = 0; ptr >= ((uint16_t *) label);)
+ sum ^= *ptr--;
+
+ return sum;
+}
+
+#endif /* UTIL_LINUX_PT_SUN_H */
diff --git a/libblkid/src/partitions/sun.c b/libblkid/src/partitions/sun.c
index f151f46ae..f1b839258 100644
--- a/libblkid/src/partitions/sun.c
+++ b/libblkid/src/partitions/sun.c
@@ -12,74 +12,9 @@
#include <stdint.h>
#include <stddef.h>
+#include "pt-sun.h"
#include "partitions.h"
-/* Supported VTOC setting */
-#define SUN_VTOC_SANITY 0x600DDEEE /* magic number */
-#define SUN_VTOC_VERSION 1
-
-#define SUN_MAXPARTITIONS 8
-
-/* Partition IDs */
-#define SUN_TAG_WHOLEDISK 0x05
-
-struct sun_disklabel {
- unsigned char info[128]; /* Informative text string */
-
- struct sun_vtoc {
- uint32_t version; /* version */
- char volume[8]; /* volume name */
- uint16_t nparts; /* num of partitions */
-
- struct sun_info { /* partition information */
- uint16_t id; /* tag */
- uint16_t flags;
- } __attribute__ ((packed)) infos[8];
-
- uint16_t padding; /* padding */
- uint32_t bootinfo[3]; /* info needed by mboot */
- uint32_t sanity; /* magic number */
- uint32_t reserved[10]; /* padding */
- uint32_t timestamp[8]; /* partition timestamp */
- } __attribute__ ((packed)) vtoc;
-
- uint32_t write_reinstruct; /* sectors to skip, writes */
- uint32_t read_reinstruct; /* sectors to skip, reads */
- unsigned char spare[148]; /* padding */
- uint16_t rspeed; /* disk rotational speed */
- uint16_t pcylcount; /* physical cylinder count */
- uint16_t sparecyl; /* extra sects per cylinder */
- uint16_t obs1;
- uint16_t obs2;
- uint16_t ilfact; /* interleave factor */
- uint16_t ncyl; /* data cylinder count */
- uint16_t nacyl; /* alt. cylinder count */
- uint16_t ntrks; /* tracks per cylinder <---- */
- uint16_t nsect; /* sectors per track <---- */
- uint16_t obs3;
- uint16_t obs4;
-
- struct sun_partition { /* partitions */
- uint32_t start_cylinder;
- uint32_t num_sectors;
- } __attribute__ ((packed)) partitions[8];
-
- uint16_t magic; /* magic number */
- uint16_t csum; /* label xor'd checksum */
-} __attribute__ ((packed));
-
-
-uint16_t count_checksum(struct sun_disklabel *label)
-{
- uint16_t *ptr = ((uint16_t *) (label + 1)) - 1;
- uint16_t sum;
-
- for (sum = 0; ptr >= ((uint16_t *) label);)
- sum ^= *ptr--;
-
- return sum;
-}
-
static int probe_sun_pt(blkid_probe pr,
const struct blkid_idmag *mag __attribute__((__unused__)))
{
@@ -95,7 +30,7 @@ static int probe_sun_pt(blkid_probe pr,
if (!l)
goto nothing;
- if (count_checksum(l)) {
+ if (sun_pt_checksum(l)) {
DBG(DEBUG_LOWPROBE, printf(
"detected corrupted sun disk label -- ignore\n"));
goto nothing;