- extracted from http://download.opensuse.org/distribution/openSUSE-current/repo...

[packages/device-mapper.git] / device-mapper-dmsetup-export.patch

diff --git a/device-mapper-dmsetup-export.patch b/device-mapper-dmsetup-export.patch
new file mode 100644 (file)
index 0000000..1797403
--- /dev/null
+++ b/device-mapper-dmsetup-export.patch
@@ -0,0 +1,140 @@
+diff --git a/dmsetup/dmsetup.c b/dmsetup/dmsetup.c
+index 25f14a6..b693008 100644
+--- a/dmsetup/dmsetup.c
++++ b/dmsetup/dmsetup.c
+@@ -995,6 +995,94 @@ static int _status(int argc, char **argv
+       return r;
+ }
+ 
++static int _export(int argc, char **argv, void *data)
++{
++      int r = 0;
++      struct dm_task *dmt = NULL;
++      void *next = NULL;
++      uint64_t start, length;
++      char *target_type = NULL;
++      char *params;
++      struct dm_names *names = (struct dm_names *) data;
++      const char *name = NULL;
++      const char *uuid = NULL;
++      struct dm_info info;
++
++      if (data)
++              name = names->name;
++      else if (argc == 2)
++              name = argv[1];
++
++      if (!(dmt = dm_task_create(DM_DEVICE_STATUS)))
++              goto out;
++
++      if (!_set_task_device(dmt, name, 0))
++              goto out;
++
++      if (!dm_task_run(dmt))
++              goto out;
++
++      if (!dm_task_get_info(dmt, &info) || !info.exists)
++              goto out;
++
++      if (!name)
++              name = dm_task_get_name(dmt);
++
++      uuid = dm_task_get_uuid(dmt);
++      printf("DM_NAME=%s\n", name);
++
++      if ((uuid = dm_task_get_uuid(dmt)) && *uuid)
++              printf("DM_UUID=%s\n", uuid);
++
++      if (!info.exists) {
++              printf("DM_STATE=NOTPRESENT\n");
++              goto out;
++      }
++
++      printf("DM_STATE=%s\n",
++             info.suspended ? "SUSPENDED" :
++             (info.read_only ? " READONLY" : "ACTIVE"));
++
++      if (!info.live_table && !info.inactive_table)
++              printf("DM_TABLE_STATE=NONE\n");
++      else
++              printf("DM_TABLE_STATE=%s%s%s\n",
++                     info.live_table ? "LIVE" : "",
++                     info.live_table && info.inactive_table ? "/" : "",
++                     info.inactive_table ? "INACTIVE" : "");
++
++      if (info.open_count != -1)
++              printf("DM_OPENCOUNT=%d\n", info.open_count);
++
++      printf("DM_LAST_EVENT_NR=%" PRIu32 "\n", info.event_nr);
++
++      printf("DM_MAJOR=%d\n", info.major);
++      printf("DM_MINOR=%d\n", info.minor);
++
++      if (info.target_count != -1)
++              printf("DM_TARGET_COUNT=%d\n", info.target_count);
++
++      /* export all table types */
++      next = dm_get_next_target(dmt, next, &start, &length,
++                                &target_type, &params);
++      if (target_type) {
++              printf("DM_TARGET_TYPES=%s", target_type);
++              while (next) {
++                      next = dm_get_next_target(dmt, next, &start, &length,
++                                                &target_type, &params);
++                      if (target_type)
++                              printf(",%s", target_type);
++              }
++              printf("\n");
++      }
++
++      r = 1;
++      out:
++      if (dmt)
++              dm_task_destroy(dmt);
++      return r;
++}
++
+ /* Show target names and their version numbers */
+ static int _targets(int argc __attribute((unused)), char **argv __attribute((unused)), void *data __attribute((unused)))
+ {
+@@ -1699,6 +1787,7 @@ static struct command _commands[] = {
+       {"info", "[<device>]", 0, 1, _info},
+       {"deps", "[<device>]", 0, 1, _deps},
+       {"status", "[<device>] [--target <target_type>]", 0, 1, _status},
++      {"export", "[<device>]", 0, 1, _export},
+       {"table", "[<device>] [--target <target_type>] [--showkeys]", 0, 1, _status},
+       {"wait", "<device> [<event_nr>]", 0, 2, _wait},
+       {"mknodes", "[<device>]", 0, 1, _mknodes},
+diff --git a/man/dmsetup.8 b/man/dmsetup.8
+index 5b2ed9f..c4524aa 100644
+--- a/man/dmsetup.8
++++ b/man/dmsetup.8
+@@ -39,13 +39,16 @@ dmsetup \- low level logical volume mana
+ .B dmsetup ls
+ .I [--target target_type] [--exec command] [--tree [-o options]]
+ .br
+-.B dmsetup info 
++.B dmsetup info
+ .I [device_name]
+ .br
+ .B dmsetup info -c|-C|--columns
+ .I [--noheadings] [--separator separator] [-o fields] [-O|--sort sort_fields]
+ .I [device_name]
+ .br
++.B dmsetup export
++.I [device_name]
++.br
+ .B dmsetup deps
+ .I [device_name]
+ .br
+@@ -138,6 +141,10 @@ device_name in subsequent dmsetup comman
+ If successful a device will appear as
+ /dev/device-mapper/<device-name>.  
+ See below for information on the table format.
++.IP \fBexport
++.I [device_name]
++.br
++Outputs information in key/value format to be imported by other programs.
+ .IP \fBdeps
+ .I [device_name]
+ .br