linux-ext4 - [PATCH] e2fsprogs: Make -U option consistent between tune2fs and mke2fs

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Message-ID: <20170413194702.GA41849@google.com>
Date:   Thu, 13 Apr 2017 12:47:02 -0700
From:   Drew Davenport <ddavenport@...gle.com>
To:     linux-ext4@...r.kernel.org
Subject: [PATCH] e2fsprogs: Make -U option consistent between tune2fs and
 mke2fs

Allow "null", "clear", "random", or "time" for the -U option for
mke2fs, which are already allowed options for tune2fs.

Signed-off-by: Drew Davenport <ddavenport@...gle.com>
---
 misc/mke2fs.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index 49c6e94d..b8d078a0 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -2914,7 +2914,14 @@ int main (int argc, char *argv[])
 	 * Parse or generate a UUID for the filesystem
 	 */
 	if (fs_uuid) {
-		if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) {
+		if ((strcasecmp(fs_uuid, "null") == 0) ||
+		    (strcasecmp(fs_uuid, "clear") == 0)) {
+			uuid_clear(fs->super->s_uuid);
+		} else if (strcasecmp(fs_uuid, "time") == 0) {
+			uuid_generate_time(fs->super->s_uuid);
+		} else if (strcasecmp(fs_uuid, "random") == 0) {
+			uuid_generate(fs->super->s_uuid);
+		} else if (uuid_parse(fs_uuid, fs->super->s_uuid) != 0) {
 			com_err(device_name, 0, "could not parse UUID: %s\n",
 				fs_uuid);
 			exit(1);
-- 
2.12.2.762.g0e3151a226-goog