133 lines
3.6 KiB
Diff
133 lines
3.6 KiB
Diff
Index: LVM2.2.02.45/tools/dmsetup.c
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===================================================================
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--- LVM2.2.02.45.orig/tools/dmsetup.c 2008-10-31 01:52:06.000000000 +0800
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+++ LVM2.2.02.45/tools/dmsetup.c 2009-04-27 17:46:16.000000000 +0800
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@@ -1075,6 +1075,94 @@
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return r;
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}
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+static int _export(int argc, char **argv, void *data)
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+{
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+ int r = 0;
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+ struct dm_task *dmt = NULL;
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+ void *next = NULL;
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+ uint64_t start, length;
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+ char *target_type = NULL;
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+ char *params;
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+ struct dm_names *names = (struct dm_names *) data;
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+ const char *name = NULL;
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+ const char *uuid = NULL;
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+ struct dm_info info;
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+
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+ if (data)
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+ name = names->name;
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+ else if (argc == 2)
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+ name = argv[1];
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+
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+ if (!(dmt = dm_task_create(DM_DEVICE_STATUS)))
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+ goto out;
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+
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+ if (!_set_task_device(dmt, name, 0))
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+ goto out;
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+
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+ if (!dm_task_run(dmt))
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+ goto out;
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+
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+ if (!dm_task_get_info(dmt, &info) || !info.exists)
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+ goto out;
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+
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+ if (!name)
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+ name = dm_task_get_name(dmt);
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+
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+ uuid = dm_task_get_uuid(dmt);
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+ printf("DM_NAME=%s\n", name);
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+
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+ if ((uuid = dm_task_get_uuid(dmt)) && *uuid)
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+ printf("DM_UUID=%s\n", uuid);
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+
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+ if (!info.exists) {
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+ printf("DM_STATE=NOTPRESENT\n");
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+ goto out;
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+ }
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+
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+ printf("DM_STATE=%s\n",
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+ info.suspended ? "SUSPENDED" :
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+ (info.read_only ? "READONLY" : "ACTIVE"));
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+
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+ if (!info.live_table && !info.inactive_table)
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+ printf("DM_TABLE_STATE=NONE\n");
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+ else
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+ printf("DM_TABLE_STATE=%s%s%s\n",
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+ info.live_table ? "LIVE" : "",
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+ info.live_table && info.inactive_table ? "/" : "",
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+ info.inactive_table ? "INACTIVE" : "");
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+
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+ if (info.open_count != -1)
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+ printf("DM_OPENCOUNT=%d\n", info.open_count);
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+
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+ printf("DM_LAST_EVENT_NR=%" PRIu32 "\n", info.event_nr);
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+
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+ printf("DM_MAJOR=%d\n", info.major);
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+ printf("DM_MINOR=%d\n", info.minor);
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+
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+ if (info.target_count != -1)
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+ printf("DM_TARGET_COUNT=%d\n", info.target_count);
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+
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+ /* export all table types */
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+ next = dm_get_next_target(dmt, next, &start, &length,
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+ &target_type, ¶ms);
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+ if (target_type) {
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+ printf("DM_TARGET_TYPES=%s", target_type);
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+ while (next) {
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+ next = dm_get_next_target(dmt, next, &start, &length,
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+ &target_type, ¶ms);
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+ if (target_type)
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+ printf(",%s", target_type);
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+ }
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+ printf("\n");
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+ }
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+
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+ r = 1;
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+ out:
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+ if (dmt)
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+ dm_task_destroy(dmt);
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+ return r;
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+}
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+
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/* Show target names and their version numbers */
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static int _targets(int argc __attribute((unused)), char **argv __attribute((unused)), void *data __attribute((unused)))
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{
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@@ -2115,6 +2203,7 @@
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{"info", "[<device>]", 0, 1, _info},
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{"deps", "[<device>]", 0, 1, _deps},
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{"status", "[<device>] [--target <target_type>]", 0, 1, _status},
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+ {"export", "[<device>]", 0, 1, _export},
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{"table", "[<device>] [--target <target_type>] [--showkeys]", 0, 1, _status},
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{"wait", "<device> [<event_nr>]", 0, 2, _wait},
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{"mknodes", "[<device>]", 0, 1, _mknodes},
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Index: LVM2.2.02.45/man/dmsetup.8.in
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===================================================================
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--- LVM2.2.02.45.orig/man/dmsetup.8.in 2007-12-28 23:13:38.000000000 +0800
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+++ LVM2.2.02.45/man/dmsetup.8.in 2009-04-27 17:48:53.000000000 +0800
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@@ -46,6 +46,9 @@
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.I [--noheadings] [--separator separator] [-o fields] [-O|--sort sort_fields]
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.I [device_name]
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.br
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+.B dmsetup export
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+.I [device_name]
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+.br
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.B dmsetup deps
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.I [device_name]
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.br
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@@ -146,6 +149,10 @@
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If successful a device will appear as
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/dev/device-mapper/<device-name>.
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See below for information on the table format.
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+.IP \fBexport
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+.I [device_name]
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+.br
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+Outputs information in key/value format to be imported by other programs.
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.IP \fBdeps
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.I [device_name]
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.br
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