diff options
Diffstat (limited to 'mkfs/main.c')
| -rw-r--r-- | mkfs/main.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/mkfs/main.c b/mkfs/main.c index 9187c43..7493a48 100644 --- a/mkfs/main.c +++ b/mkfs/main.c @@ -22,6 +22,10 @@ #include "erofs/compress.h" #include "erofs/xattr.h" +#ifdef HAVE_LIBUUID +#include <uuid/uuid.h> +#endif + #define EROFS_SUPER_END (EROFS_SUPER_OFFSET + sizeof(struct erofs_super_block)) static struct option long_options[] = { @@ -234,6 +238,7 @@ int erofs_mkfs_update_super_block(struct erofs_buffer_head *bh, *blocks = erofs_mapbh(NULL, true); sb.blocks = cpu_to_le32(*blocks); sb.root_nid = cpu_to_le16(root_nid); + memcpy(sb.uuid, sbi.uuid, sizeof(sb.uuid)); buf = calloc(sb_blksize, 1); if (!buf) { @@ -305,6 +310,20 @@ static int erofs_mkfs_superblock_csum_set(void) return 0; } +static void erofs_mkfs_generate_uuid(void) +{ + char uuid_str[37] = "not available"; + +#ifdef HAVE_LIBUUID + do { + uuid_generate(sbi.uuid); + } while (uuid_is_null(sbi.uuid)); + + uuid_unparse_lower(sbi.uuid, uuid_str); +#endif + erofs_info("filesystem UUID: %s", uuid_str); +} + int main(int argc, char **argv) { int err = 0; @@ -376,6 +395,7 @@ int main(int argc, char **argv) goto exit; } + erofs_mkfs_generate_uuid(); erofs_inode_manager_init(); err = erofs_build_shared_xattrs_from_path(cfg.c_src_path); |