Hi Heinz,
by convention most programs add a UUID to the device-mapper table
they/ve created. This allows of the intended usage of the table.
This patch adds the generation of UUIDs to dmraid. Tables UUIDs are
prefixed with 'dmraid-'.
Cheers,
Hannes
--
Dr. Hannes Reinecke hare@xxxxxxx
SuSE Linux Products GmbH S390 & zSeries
Maxfeldstraße 5 +49 911 74053 688
90409 Nürnberg http://www.suse.de
diff -pur 1.0.0.rc11.orig/lib/activate/devmapper.c 1.0.0.rc11/lib/activate/devmapper.c
--- 1.0.0.rc11.orig/lib/activate/devmapper.c 2006-03-29 15:18:43.000000000 +0200
+++ 1.0.0.rc11/lib/activate/devmapper.c 2006-08-28 12:55:32.000000000 +0200
@@ -153,12 +153,20 @@ int dm_create(struct lib_context *lc, st
{
int ret = 0;
struct dm_task *dmt;
+ char *uuid;
+
+ /* Generate UUID */
+ uuid = malloc(strlen(rs->name) + UUID_PREFIX_LEN + 1);
+ if (!uuid) return 1;
+
+ sprintf(uuid,UUID_PREFIX "%s",rs->name);
_init_dm();
/* Create <dev_name> */
ret = (dmt = dm_task_create(DM_DEVICE_CREATE)) &&
dm_task_set_name(dmt, rs->name) &&
+ dm_task_set_uuid(dmt, uuid) &&
parse_table(lc, dmt, table) &&
dm_task_run(dmt);
@@ -171,6 +179,8 @@ int dm_create(struct lib_context *lc, st
_exit_dm(dmt);
+ free(uuid);
+
return ret;
}
diff -pur 1.0.0.rc11.orig/lib/activate/devmapper.h 1.0.0.rc11/lib/activate/devmapper.h
--- 1.0.0.rc11.orig/lib/activate/devmapper.h 2005-05-23 14:39:55.000000000 +0200
+++ 1.0.0.rc11/lib/activate/devmapper.h 2006-08-28 12:55:01.000000000 +0200
@@ -8,6 +8,9 @@
#ifndef _DEVMAPPER_H_
#define _DEVMAPPER_H
+#define UUID_PREFIX "dmraid-"
+#define UUID_PREFIX_LEN 7
+
char *mkdm_path(struct lib_context *lc, const char *name);
int dm_create(struct lib_context *lc, struct raid_set *rs, char *table);
int dm_remove(struct lib_context *lc, struct raid_set *rs);
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