diff options
Diffstat (limited to 'lib/uuid.c')
| -rw-r--r-- | lib/uuid.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/uuid.c b/lib/uuid.c index b6a1edb61d87..e309b4c5be3d 100644 --- a/lib/uuid.c +++ b/lib/uuid.c @@ -40,9 +40,19 @@ void generate_random_uuid(unsigned char uuid[16]) } EXPORT_SYMBOL(generate_random_uuid); +void generate_random_guid(unsigned char guid[16]) +{ + get_random_bytes(guid, 16); + /* Set GUID version to 4 --- truly random generation */ + guid[7] = (guid[7] & 0x0F) | 0x40; + /* Set the GUID variant to DCE */ + guid[8] = (guid[8] & 0x3F) | 0x80; +} +EXPORT_SYMBOL(generate_random_guid); + static void __uuid_gen_common(__u8 b[16]) { - prandom_bytes(b, 16); + get_random_bytes(b, 16); /* reversion 0b10 */ b[8] = (b[8] & 0x3F) | 0x80; } |