ubi-utils: Add ubiblock tool

With the addition of block device access to UBI volumes, we now
add a simple userspace tool to access the new ioctls.

Usage of this tool is as simple as it gets:

  $ ubiblock --create /dev/ubi0_0

will create a new block device /dev/ubiblock0_0, and

  $ ubiblock --remove /dev/ubi0_0

will remove the device.

Artem: slightly changed the header comment.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/ubi-utils/libubi.c b/ubi-utils/libubi.c
index a7463e8..598191e 100644
--- a/ubi-utils/libubi.c
+++ b/ubi-utils/libubi.c
@@ -1109,6 +1109,16 @@ int ubi_rsvol(libubi_t desc, const char *node, int vol_id, long long bytes)
 	return ret;
 }
 
+int ubi_vol_block_create(int fd)
+{
+	return ioctl(fd, UBI_IOCVOLCRBLK);
+}
+
+int ubi_vol_block_remove(int fd)
+{
+	return ioctl(fd, UBI_IOCVOLRMBLK);
+}
+
 int ubi_update_start(libubi_t desc, int fd, long long bytes)
 {
 	desc = desc;