This is userspace patch that adds support for the DM_GET_TARGET_VERSION to dmsetup. It introduces a new comman "target-version" that will accept list of targets and print their version.
Signed-off-by: Mikulas Patocka <[email protected]> --- device_mapper/all.h | 4 +++- device_mapper/ioctl/libdm-iface.c | 3 +++ device_mapper/misc/dm-ioctl.h | 3 +++ libdm/dm-tools/dmsetup.c | 28 ++++++++++++++++++++++++++++ libdm/ioctl/libdm-iface.c | 3 +++ libdm/libdevmapper.h | 4 +++- libdm/misc/dm-ioctl.h | 2 ++ 7 files changed, 45 insertions(+), 2 deletions(-) Index: lvm2/libdm/dm-tools/dmsetup.c =================================================================== --- lvm2.orig/libdm/dm-tools/dmsetup.c 2019-09-16 10:11:12.000000000 +0200 +++ lvm2/libdm/dm-tools/dmsetup.c 2019-09-16 10:35:21.000000000 +0200 @@ -2587,6 +2587,33 @@ out: return r; } +/* Show target names and their version numbers */ +static int _target_version(CMD_ARGS) +{ + int r = 0; + struct dm_task *dmt; + struct dm_versions *target; + + if (!(dmt = dm_task_create(DM_GET_TARGET_VERSION))) + return_0; + + if (!dm_task_set_name(dmt, argv[0])) + goto_out; + + if (!_task_run(dmt)) + goto_out; + + target = dm_task_get_versions(dmt); + printf("%-16s v%d.%d.%d\n", target->name, target->version[0], + target->version[1], target->version[2]); + + r = 1; + +out: + dm_task_destroy(dmt); + return r; +} + static int _info(CMD_ARGS) { int r = 0; @@ -6239,6 +6266,7 @@ static struct command _dmsetup_commands[ {"udevcomplete", "<cookie>", 1, 1, 0, 0, _udevcomplete}, {"udevcomplete_all", "[<age_in_minutes>]", 0, 1, 0, 0, _udevcomplete_all}, {"udevcookies", "", 0, 0, 0, 0, _udevcookies}, + {"target-version", "[<target>...]", 1, -1, 1, 0, _target_version}, {"targets", "", 0, 0, 0, 0, _targets}, {"version", "", 0, 0, 0, 0, _version}, {"setgeometry", "<device> <cyl> <head> <sect> <start>", 5, 5, 0, 0, _setgeometry}, Index: lvm2/device_mapper/all.h =================================================================== --- lvm2.orig/device_mapper/all.h 2019-09-16 09:58:45.000000000 +0200 +++ lvm2/device_mapper/all.h 2019-09-16 10:19:16.000000000 +0200 @@ -121,7 +121,9 @@ enum { DM_DEVICE_SET_GEOMETRY, - DM_DEVICE_ARM_POLL + DM_DEVICE_ARM_POLL, + + DM_GET_TARGET_VERSION }; /* Index: lvm2/libdm/libdevmapper.h =================================================================== --- lvm2.orig/libdm/libdevmapper.h 2019-09-16 09:58:45.000000000 +0200 +++ lvm2/libdm/libdevmapper.h 2019-09-16 10:18:50.000000000 +0200 @@ -121,7 +121,9 @@ enum { DM_DEVICE_SET_GEOMETRY, - DM_DEVICE_ARM_POLL + DM_DEVICE_ARM_POLL, + + DM_GET_TARGET_VERSION }; /* Index: lvm2/device_mapper/ioctl/libdm-iface.c =================================================================== --- lvm2.orig/device_mapper/ioctl/libdm-iface.c 2019-09-16 09:58:45.000000000 +0200 +++ lvm2/device_mapper/ioctl/libdm-iface.c 2019-09-16 10:23:48.000000000 +0200 @@ -119,6 +119,9 @@ static struct cmd_data _cmd_data_v4[] = #ifdef DM_DEV_ARM_POLL {"armpoll", DM_DEV_ARM_POLL, {4, 36, 0}}, #endif +#ifdef DM_GET_TARGET_VERSION + {"target-version", DM_GET_TARGET_VERSION, {4, 41, 0}}, +#endif }; /* *INDENT-ON* */ Index: lvm2/libdm/ioctl/libdm-iface.c =================================================================== --- lvm2.orig/libdm/ioctl/libdm-iface.c 2019-09-16 09:58:45.000000000 +0200 +++ lvm2/libdm/ioctl/libdm-iface.c 2019-09-16 10:30:24.000000000 +0200 @@ -118,6 +118,9 @@ static struct cmd_data _cmd_data_v4[] = #ifdef DM_DEV_ARM_POLL {"armpoll", DM_DEV_ARM_POLL, {4, 36, 0}}, #endif +#ifdef DM_GET_TARGET_VERSION + {"target-version", DM_GET_TARGET_VERSION, {4, 41, 0}}, +#endif }; /* *INDENT-ON* */ Index: lvm2/device_mapper/misc/dm-ioctl.h =================================================================== --- lvm2.orig/device_mapper/misc/dm-ioctl.h 2019-09-16 09:58:45.000000000 +0200 +++ lvm2/device_mapper/misc/dm-ioctl.h 2019-09-16 10:29:24.000000000 +0200 @@ -244,6 +244,7 @@ enum { DM_TARGET_MSG_CMD, DM_DEV_SET_GEOMETRY_CMD, DM_DEV_ARM_POLL_CMD, + DM_GET_TARGET_VERSION_CMD, }; #define DM_IOCTL 0xfd @@ -270,6 +271,8 @@ enum { #define DM_TARGET_MSG _IOWR(DM_IOCTL, DM_TARGET_MSG_CMD, struct dm_ioctl) #define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl) +#define DM_GET_TARGET_VERSION _IOWR(DM_IOCTL, DM_GET_TARGET_VERSION_CMD, struct dm_ioctl) + #define DM_VERSION_MAJOR 4 #define DM_VERSION_MINOR 36 #define DM_VERSION_PATCHLEVEL 0 Index: lvm2/libdm/misc/dm-ioctl.h =================================================================== --- lvm2.orig/libdm/misc/dm-ioctl.h 2019-09-16 09:58:45.000000000 +0200 +++ lvm2/libdm/misc/dm-ioctl.h 2019-09-16 10:30:04.000000000 +0200 @@ -244,6 +244,7 @@ enum { DM_TARGET_MSG_CMD, DM_DEV_SET_GEOMETRY_CMD, DM_DEV_ARM_POLL_CMD, + DM_GET_TARGET_VERSION_CMD, }; #define DM_IOCTL 0xfd @@ -269,6 +270,7 @@ enum { #define DM_TARGET_MSG _IOWR(DM_IOCTL, DM_TARGET_MSG_CMD, struct dm_ioctl) #define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl) +#define DM_GET_TARGET_VERSION _IOWR(DM_IOCTL, DM_GET_TARGET_VERSION_CMD, struct dm_ioctl) #define DM_VERSION_MAJOR 4 #define DM_VERSION_MINOR 36 -- dm-devel mailing list [email protected] https://www.redhat.com/mailman/listinfo/dm-devel
