2 * volume_id - reads filesystem label and uuid
4 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation version 2 of the License.
29 #include "volume_id.h"
34 int volume_id_probe_all(struct volume_id *id, uint64_t off, uint64_t size)
39 /* probe for raid first, cause fs probes may be successful on raid members */
41 if (volume_id_probe_linux_raid(id, off, size) == 0)
44 if (volume_id_probe_intel_software_raid(id, off, size) == 0)
47 if (volume_id_probe_lsi_mega_raid(id, off, size) == 0)
50 if (volume_id_probe_via_raid(id, off, size) == 0)
53 if (volume_id_probe_silicon_medley_raid(id, off, size) == 0)
56 if (volume_id_probe_nvidia_raid(id, off, size) == 0)
59 if (volume_id_probe_promise_fasttrack_raid(id, off, size) == 0)
62 if (volume_id_probe_highpoint_45x_raid(id, off, size) == 0)
66 if (volume_id_probe_lvm1(id, off) == 0)
69 if (volume_id_probe_lvm2(id, off) == 0)
72 if (volume_id_probe_highpoint_37x_raid(id, off) == 0)
75 if (volume_id_probe_luks(id, off) == 0)
78 /* signature in the first block, only small buffer needed */
79 if (volume_id_probe_vfat(id, off) == 0)
82 if (volume_id_probe_xfs(id, off) == 0)
85 /* fill buffer with maximum */
86 volume_id_get_buffer(id, 0, SB_BUFFER_SIZE);
88 if (volume_id_probe_linux_swap(id, off) == 0)
91 if (volume_id_probe_ext(id, off) == 0)
94 if (volume_id_probe_reiserfs(id, off) == 0)
97 if (volume_id_probe_jfs(id, off) == 0)
100 if (volume_id_probe_udf(id, off) == 0)
103 if (volume_id_probe_iso9660(id, off) == 0)
106 if (volume_id_probe_hfs_hfsplus(id, off) == 0)
109 if (volume_id_probe_ufs(id, off) == 0)
112 if (volume_id_probe_ntfs(id, off) == 0)
115 if (volume_id_probe_cramfs(id, off) == 0)
118 if (volume_id_probe_romfs(id, off) == 0)
121 if (volume_id_probe_hpfs(id, off) == 0)
124 if (volume_id_probe_sysv(id, off) == 0)
127 if (volume_id_probe_minix(id, off) == 0)
130 if (volume_id_probe_ocfs1(id, off) == 0)
133 if (volume_id_probe_ocfs2(id, off) == 0)
136 if (volume_id_probe_vxfs(id, off) == 0)
142 /* If the filestystem in recognized, we free the allocated buffers,
143 otherwise they will stay in place for the possible next probe call */
144 volume_id_free_buffer(id);
149 /* open volume by already open file descriptor */
150 struct volume_id *volume_id_open_fd(int fd)
152 struct volume_id *id;
154 id = malloc(sizeof(struct volume_id));
157 memset(id, 0x00, sizeof(struct volume_id));
164 /* open volume by device node */
165 struct volume_id *volume_id_open_node(const char *path)
167 struct volume_id *id;
170 fd = open(path, O_RDONLY);
172 dbg("unable to open '%s'", path);
176 id = volume_id_open_fd(fd);
180 /* close fd on device close */
186 void volume_id_close(struct volume_id *id)
191 if (id->fd_close != 0)
194 volume_id_free_buffer(id);
196 if (id->partitions != NULL)
197 free(id->partitions);