Commit graph

5 commits

Author SHA1 Message Date
David Anderson
b6181e3e46 libdm: Clean up error messages and dm_ioctl use.
This change removes unnecessary malloc() calls for dm_ioctls. It also
simplifies and fixes line endings on some error messages.

Bug: 110035986
Test: N/A
Change-Id: I2f56e5dab7f25cd9b2f80896f80101db56228981
2018-06-19 18:15:14 -07:00
Sandeep Patil
d34d0ef50e fs_mgr: dmctl: fix 'dmctl help' output
Test: adb shell dmctl help
Bug: 110035986

Change-Id: I5764b0b5f707dff03e715f975e54cdc2fd8fd437
Signed-off-by: Sandeep Patil <sspatil@google.com>
2018-06-13 18:38:59 -07:00
Sandeep Patil
f603cfdd70 fs_mgr: libdm: Add support to list existing device mapper devices
Test: dmctl create system; dmctl list devices; dmctl delete system;
      dmctl list devices
Bug: 110035986

Change-Id: I4ae5d40041458421068976fa2a99c662c542a9a1
Signed-off-by: Sandeep Patil <sspatil@google.com>
2018-06-13 13:50:21 -07:00
Sandeep Patil
45d94ab683 fs_mgr: libdm: add support to create and delete device mapper devices.
Test: dmctl create system; dmctl delete system
Test: verify that ueventd creates /dev/block/dm-X and verify the dm
device name from /sys/block/dm-X/dm/name
Bug: 110035986

Change-Id: I2a08e2ea7007c0c13fe64d444f0d6618784edae7
Signed-off-by: Sandeep Patil <sspatil@google.com>
2018-06-13 13:35:48 -07:00
Sandeep Patil
59f04ee74c fs_mgr: device mapper: Add libdm and 'dmctl' tool to use it.
libdm is small static library that is intended to be the one source to
control device mapper. It is intended to have APIs to create, control
and destroy device mapper targets. Eventually, all fs_mgr implementation
that talks to device mapper will be moved to using libdm APIs.

Added 'dmctl', a command line tool that lists the registered device
mapper targets and their corresponding version. The tool will continue
to get new features to exemplify new APIs implemented in libdm.

The library is intentionally static and folds into libfs_mgr. All
clients must link to libfs_mgr as a result.

Test: dmctl list
Bug: 110035986

Change-Id: I71e7146073a74e7523524bf3b20d0be6d06f9fad
Signed-off-by: Sandeep Patil <sspatil@google.com>
2018-06-13 13:35:44 -07:00