[thirdparty/systemd.git] / src / udev / udev-builtin-blkid.c

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * probe disks for filesystems and partitions
 *
 * Copyright (C) 2011 Kay Sievers <kay@vrfy.org>
 * Copyright (C) 2011 Karel Zak <kzak@redhat.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <blkid.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>

#include "sd-id128.h"

#include "alloc-util.h"
#include "blkid-util.h"
#include "efivars.h"
#include "fd-util.h"
#include "gpt.h"
#include "string-util.h"
#include "udev.h"

static void print_property(struct udev_device *dev, bool test, const char *name, const char *value) {
        char s[256];

        s[0] = '\0';

        if (streq(name, "TYPE")) {
                udev_builtin_add_property(dev, test, "ID_FS_TYPE", value);

        } else if (streq(name, "USAGE")) {
                udev_builtin_add_property(dev, test, "ID_FS_USAGE", value);

        } else if (streq(name, "VERSION")) {
                udev_builtin_add_property(dev, test, "ID_FS_VERSION", value);

        } else if (streq(name, "UUID")) {
                blkid_safe_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_FS_UUID", s);
                blkid_encode_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_FS_UUID_ENC", s);

        } else if (streq(name, "UUID_SUB")) {
                blkid_safe_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_FS_UUID_SUB", s);
                blkid_encode_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_FS_UUID_SUB_ENC", s);

        } else if (streq(name, "LABEL")) {
                blkid_safe_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_FS_LABEL", s);
                blkid_encode_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_FS_LABEL_ENC", s);

        } else if (streq(name, "PTTYPE")) {
                udev_builtin_add_property(dev, test, "ID_PART_TABLE_TYPE", value);

        } else if (streq(name, "PTUUID")) {
                udev_builtin_add_property(dev, test, "ID_PART_TABLE_UUID", value);

        } else if (streq(name, "PART_ENTRY_NAME")) {
                blkid_encode_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_PART_ENTRY_NAME", s);

        } else if (streq(name, "PART_ENTRY_TYPE")) {
                blkid_encode_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_PART_ENTRY_TYPE", s);

        } else if (startswith(name, "PART_ENTRY_")) {
                strscpyl(s, sizeof(s), "ID_", name, NULL);
                udev_builtin_add_property(dev, test, s, value);

        } else if (streq(name, "SYSTEM_ID")) {
                blkid_encode_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_FS_SYSTEM_ID", s);

        } else if (streq(name, "PUBLISHER_ID")) {
                blkid_encode_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_FS_PUBLISHER_ID", s);

        } else if (streq(name, "APPLICATION_ID")) {
                blkid_encode_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_FS_APPLICATION_ID", s);

        } else if (streq(name, "BOOT_SYSTEM_ID")) {
                blkid_encode_string(value, s, sizeof(s));
                udev_builtin_add_property(dev, test, "ID_FS_BOOT_SYSTEM_ID", s);
        }
}

static int find_gpt_root(struct udev_device *dev, blkid_probe pr, bool test) {

#if defined(GPT_ROOT_NATIVE) && ENABLE_EFI

        _cleanup_free_ char *root_id = NULL;
        bool found_esp = false;
        blkid_partlist pl;
        int i, nvals, r;

        assert(pr);

        /* Iterate through the partitions on this disk, and see if the
         * EFI ESP we booted from is on it. If so, find the first root
         * disk, and add a property indicating its partition UUID. */

        errno = 0;
        pl = blkid_probe_get_partitions(pr);
        if (!pl)
                return -errno ?: -ENOMEM;

        nvals = blkid_partlist_numof_partitions(pl);
        for (i = 0; i < nvals; i++) {
                blkid_partition pp;
                const char *stype, *sid;
                sd_id128_t type;

                pp = blkid_partlist_get_partition(pl, i);
                if (!pp)
                        continue;

                sid = blkid_partition_get_uuid(pp);
                if (!sid)
                        continue;

                stype = blkid_partition_get_type_string(pp);
                if (!stype)
                        continue;

                if (sd_id128_from_string(stype, &type) < 0)
                        continue;

                if (sd_id128_equal(type, GPT_ESP)) {
                        sd_id128_t id, esp;

                        /* We found an ESP, let's see if it matches
                         * the ESP we booted from. */

                        if (sd_id128_from_string(sid, &id) < 0)
                                continue;

                        r = efi_loader_get_device_part_uuid(&esp);
                        if (r < 0)
                                return r;

                        if (sd_id128_equal(id, esp))
                                found_esp = true;

                } else if (sd_id128_equal(type, GPT_ROOT_NATIVE)) {
                        unsigned long long flags;

                        flags = blkid_partition_get_flags(pp);
                        if (flags & GPT_FLAG_NO_AUTO)
                                continue;

                        /* We found a suitable root partition, let's
                         * remember the first one. */

                        if (!root_id) {
                                root_id = strdup(sid);
                                if (!root_id)
                                        return -ENOMEM;
                        }
                }
        }

        /* We found the ESP on this disk, and also found a root
         * partition, nice! Let's export its UUID */
        if (found_esp && root_id)
                udev_builtin_add_property(dev, test, "ID_PART_GPT_AUTO_ROOT_UUID", root_id);
#endif

        return 0;
}

static int probe_superblocks(blkid_probe pr) {
        struct stat st;
        int rc;

        if (fstat(blkid_probe_get_fd(pr), &st))
                return -errno;

        blkid_probe_enable_partitions(pr, 1);

        if (!S_ISCHR(st.st_mode) &&
            blkid_probe_get_size(pr) <= 1024 * 1440 &&
            blkid_probe_is_wholedisk(pr)) {
                /*
                 * check if the small disk is partitioned, if yes then
                 * don't probe for filesystems.
                 */
                blkid_probe_enable_superblocks(pr, 0);

                rc = blkid_do_fullprobe(pr);
                if (rc < 0)
                        return rc;        /* -1 = error, 1 = nothing, 0 = success */

                if (blkid_probe_lookup_value(pr, "PTTYPE", NULL, NULL) == 0)
                        return 0;        /* partition table detected */
        }

        blkid_probe_set_partitions_flags(pr, BLKID_PARTS_ENTRY_DETAILS);
        blkid_probe_enable_superblocks(pr, 1);

        return blkid_do_safeprobe(pr);
}

static int builtin_blkid(struct udev_device *dev, int argc, char *argv[], bool test) {
        const char *root_partition;
        int64_t offset = 0;
        bool noraid = false;
        _cleanup_close_ int fd = -1;
        _cleanup_blkid_free_probe_ blkid_probe pr = NULL;
        const char *data;
        const char *name;
        int nvals;
        int i;
        int err = 0;
        bool is_gpt = false;

        static const struct option options[] = {
                { "offset", optional_argument, NULL, 'o' },
                { "noraid", no_argument, NULL, 'R' },
                {}
        };

        for (;;) {
                int option;

                option = getopt_long(argc, argv, "oR", options, NULL);
                if (option == -1)
                        break;

                switch (option) {
                case 'o':
                        offset = strtoull(optarg, NULL, 0);
                        break;
                case 'R':
                        noraid = true;
                        break;
                }
        }

        pr = blkid_new_probe();
        if (!pr)
                return EXIT_FAILURE;

        blkid_probe_set_superblocks_flags(pr,
                BLKID_SUBLKS_LABEL | BLKID_SUBLKS_UUID |
                BLKID_SUBLKS_TYPE | BLKID_SUBLKS_SECTYPE |
                BLKID_SUBLKS_USAGE | BLKID_SUBLKS_VERSION);

        if (noraid)
                blkid_probe_filter_superblocks_usage(pr, BLKID_FLTR_NOTIN, BLKID_USAGE_RAID);

        fd = open(udev_device_get_devnode(dev), O_RDONLY|O_CLOEXEC);
        if (fd < 0) {
                err = log_debug_errno(errno, "Failure opening block device %s: %m", udev_device_get_devnode(dev));
                goto out;
        }

        err = blkid_probe_set_device(pr, fd, offset, 0);
        if (err < 0)
                goto out;

        log_debug("probe %s %sraid offset=%"PRIi64,
                  udev_device_get_devnode(dev),
                  noraid ? "no" : "", offset);

        err = probe_superblocks(pr);
        if (err < 0)
                goto out;

        /* If we are a partition then our parent passed on the root
         * partition UUID to us */
        root_partition = udev_device_get_property_value(dev, "ID_PART_GPT_AUTO_ROOT_UUID");

        nvals = blkid_probe_numof_values(pr);
        for (i = 0; i < nvals; i++) {
                if (blkid_probe_get_value(pr, i, &name, &data, NULL))
                        continue;

                print_property(dev, test, name, data);

                /* Is this a disk with GPT partition table? */
                if (streq(name, "PTTYPE") && streq(data, "gpt"))
                        is_gpt = true;

                /* Is this a partition that matches the root partition
                 * property we inherited from our parent? */
                if (root_partition && streq(name, "PART_ENTRY_UUID") && streq(data, root_partition))
                        udev_builtin_add_property(dev, test, "ID_PART_GPT_AUTO_ROOT", "1");
        }

        if (is_gpt)
                find_gpt_root(dev, pr, test);

out:
        if (err < 0)
                return EXIT_FAILURE;

        return EXIT_SUCCESS;
}

const struct udev_builtin udev_builtin_blkid = {
        .name = "blkid",
        .cmd = builtin_blkid,
        .help = "Filesystem and partition probing",
        .run_once = true,
};
Commit	Line	Data
e7145211	1	/* SPDX-License-Identifier: GPL-2.0+ */
81dadce5 KS	2	/*
	3	* probe disks for filesystems and partitions
	4	*
1298001e	5	* Copyright (C) 2011 Kay Sievers <kay@vrfy.org>
81dadce5 KS	6	* Copyright (C) 2011 Karel Zak <kzak@redhat.com>
	7	*
	8	* This program is free software: you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation, either version 2 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	20	*/
	21
6b5cf3ea	22	#include <blkid.h>
81dadce5 KS	23	#include <errno.h>
81dadce5 KS	24	#include <fcntl.h>
c38a141b	25	#include <getopt.h>
07630cea LP	26	#include <stdio.h>
	27	#include <stdlib.h>
	28	#include <string.h>
81dadce5	29	#include <sys/stat.h>
81dadce5	30
cbd353ce	31	#include "sd-id128.h"
07630cea	32
b5efdb8a	33	#include "alloc-util.h"
a1bb2402	34	#include "blkid-util.h"
cbd353ce	35	#include "efivars.h"
3ffd4af2	36	#include "fd-util.h"
07630cea LP	37	#include "gpt.h"
07630cea LP	38	#include "string-util.h"
81dadce5 KS	39	#include "udev.h"
81dadce5 KS	40
9ec6e95b	41	static void print_property(struct udev_device dev, bool test, const char name, const char *value) {
d13394a8	42	char s[256];
81dadce5	43
912541b0	44	s[0] = '\0';
81dadce5	45
33502ffe	46	if (streq(name, "TYPE")) {
912541b0	47	udev_builtin_add_property(dev, test, "ID_FS_TYPE", value);
81dadce5	48
33502ffe	49	} else if (streq(name, "USAGE")) {
912541b0	50	udev_builtin_add_property(dev, test, "ID_FS_USAGE", value);
e5d8ce91	51
33502ffe	52	} else if (streq(name, "VERSION")) {
912541b0	53	udev_builtin_add_property(dev, test, "ID_FS_VERSION", value);
81dadce5	54
33502ffe	55	} else if (streq(name, "UUID")) {
912541b0 KS	56	blkid_safe_string(value, s, sizeof(s));
	57	udev_builtin_add_property(dev, test, "ID_FS_UUID", s);
	58	blkid_encode_string(value, s, sizeof(s));
	59	udev_builtin_add_property(dev, test, "ID_FS_UUID_ENC", s);
81dadce5	60
33502ffe	61	} else if (streq(name, "UUID_SUB")) {
912541b0 KS	62	blkid_safe_string(value, s, sizeof(s));
	63	udev_builtin_add_property(dev, test, "ID_FS_UUID_SUB", s);
	64	blkid_encode_string(value, s, sizeof(s));
	65	udev_builtin_add_property(dev, test, "ID_FS_UUID_SUB_ENC", s);
81dadce5	66
33502ffe	67	} else if (streq(name, "LABEL")) {
912541b0 KS	68	blkid_safe_string(value, s, sizeof(s));
	69	udev_builtin_add_property(dev, test, "ID_FS_LABEL", s);
	70	blkid_encode_string(value, s, sizeof(s));
	71	udev_builtin_add_property(dev, test, "ID_FS_LABEL_ENC", s);
81dadce5	72
33502ffe	73	} else if (streq(name, "PTTYPE")) {
912541b0	74	udev_builtin_add_property(dev, test, "ID_PART_TABLE_TYPE", value);
81dadce5	75
894a156d DR	76	} else if (streq(name, "PTUUID")) {
	77	udev_builtin_add_property(dev, test, "ID_PART_TABLE_UUID", value);
	78
33502ffe	79	} else if (streq(name, "PART_ENTRY_NAME")) {
912541b0	80	blkid_encode_string(value, s, sizeof(s));
1b9e13e2	81	udev_builtin_add_property(dev, test, "ID_PART_ENTRY_NAME", s);
81dadce5	82
33502ffe	83	} else if (streq(name, "PART_ENTRY_TYPE")) {
912541b0	84	blkid_encode_string(value, s, sizeof(s));
1b9e13e2	85	udev_builtin_add_property(dev, test, "ID_PART_ENTRY_TYPE", s);
81dadce5	86
33502ffe	87	} else if (startswith(name, "PART_ENTRY_")) {
d5a89d7d	88	strscpyl(s, sizeof(s), "ID_", name, NULL);
a3642381	89	udev_builtin_add_property(dev, test, s, value);
ddb5bee1 ZAK	90
	91	} else if (streq(name, "SYSTEM_ID")) {
	92	blkid_encode_string(value, s, sizeof(s));
	93	udev_builtin_add_property(dev, test, "ID_FS_SYSTEM_ID", s);
	94
	95	} else if (streq(name, "PUBLISHER_ID")) {
	96	blkid_encode_string(value, s, sizeof(s));
	97	udev_builtin_add_property(dev, test, "ID_FS_PUBLISHER_ID", s);
	98
	99	} else if (streq(name, "APPLICATION_ID")) {
	100	blkid_encode_string(value, s, sizeof(s));
	101	udev_builtin_add_property(dev, test, "ID_FS_APPLICATION_ID", s);
	102
	103	} else if (streq(name, "BOOT_SYSTEM_ID")) {
	104	blkid_encode_string(value, s, sizeof(s));
	105	udev_builtin_add_property(dev, test, "ID_FS_BOOT_SYSTEM_ID", s);
912541b0	106	}
81dadce5 KS	107	}
81dadce5 KS	108
cbd353ce LP	109	static int find_gpt_root(struct udev_device *dev, blkid_probe pr, bool test) {
cbd353ce LP	110
349cc4a5	111	#if defined(GPT_ROOT_NATIVE) && ENABLE_EFI
cbd353ce LP	112
	113	_cleanup_free_ char *root_id = NULL;
	114	bool found_esp = false;
	115	blkid_partlist pl;
	116	int i, nvals, r;
	117
	118	assert(pr);
	119
	120	/* Iterate through the partitions on this disk, and see if the
	121	* EFI ESP we booted from is on it. If so, find the first root
	122	* disk, and add a property indicating its partition UUID. */
	123
	124	errno = 0;
	125	pl = blkid_probe_get_partitions(pr);
	126	if (!pl)
b382db9f	127	return -errno ?: -ENOMEM;
cbd353ce LP	128
	129	nvals = blkid_partlist_numof_partitions(pl);
	130	for (i = 0; i < nvals; i++) {
	131	blkid_partition pp;
	132	const char stype, sid;
	133	sd_id128_t type;
	134
	135	pp = blkid_partlist_get_partition(pl, i);
	136	if (!pp)
	137	continue;
	138
	139	sid = blkid_partition_get_uuid(pp);
	140	if (!sid)
	141	continue;
	142
	143	stype = blkid_partition_get_type_string(pp);
	144	if (!stype)
	145	continue;
	146
	147	if (sd_id128_from_string(stype, &type) < 0)
	148	continue;
	149
	150	if (sd_id128_equal(type, GPT_ESP)) {
	151	sd_id128_t id, esp;
	152
	153	/* We found an ESP, let's see if it matches
	154	* the ESP we booted from. */
	155
	156	if (sd_id128_from_string(sid, &id) < 0)
	157	continue;
	158
	159	r = efi_loader_get_device_part_uuid(&esp);
	160	if (r < 0)
	161	return r;
	162
	163	if (sd_id128_equal(id, esp))
	164	found_esp = true;
	165
	166	} else if (sd_id128_equal(type, GPT_ROOT_NATIVE)) {
a3071999 LP	167	unsigned long long flags;
	168
	169	flags = blkid_partition_get_flags(pp);
	170	if (flags & GPT_FLAG_NO_AUTO)
	171	continue;
cbd353ce LP	172
	173	/* We found a suitable root partition, let's
	174	* remember the first one. */
	175
	176	if (!root_id) {
	177	root_id = strdup(sid);
	178	if (!root_id)
	179	return -ENOMEM;
	180	}
	181	}
	182	}
	183
	184	/* We found the ESP on this disk, and also found a root
329f7803	185	* partition, nice! Let's export its UUID */
cbd353ce	186	if (found_esp && root_id)
329f7803	187	udev_builtin_add_property(dev, test, "ID_PART_GPT_AUTO_ROOT_UUID", root_id);
cbd353ce LP	188	#endif
	189
	190	return 0;
	191	}
	192
9ec6e95b	193	static int probe_superblocks(blkid_probe pr) {
912541b0 KS	194	struct stat st;
912541b0 KS	195	int rc;
81dadce5	196
912541b0	197	if (fstat(blkid_probe_get_fd(pr), &st))
dd7e1d62	198	return -errno;
81dadce5	199
912541b0	200	blkid_probe_enable_partitions(pr, 1);
81dadce5	201
d13394a8 LP	202	if (!S_ISCHR(st.st_mode) &&
d13394a8 LP	203	blkid_probe_get_size(pr) <= 1024 * 1440 &&
912541b0 KS	204	blkid_probe_is_wholedisk(pr)) {
	205	/*
	206	* check if the small disk is partitioned, if yes then
	207	* don't probe for filesystems.
	208	*/
	209	blkid_probe_enable_superblocks(pr, 0);
81dadce5	210
912541b0 KS	211	rc = blkid_do_fullprobe(pr);
912541b0 KS	212	if (rc < 0)
d13394a8	213	return rc; /* -1 = error, 1 = nothing, 0 = success */
81dadce5	214
912541b0 KS	215	if (blkid_probe_lookup_value(pr, "PTTYPE", NULL, NULL) == 0)
	216	return 0; /* partition table detected */
	217	}
81dadce5	218
912541b0 KS	219	blkid_probe_set_partitions_flags(pr, BLKID_PARTS_ENTRY_DETAILS);
912541b0 KS	220	blkid_probe_enable_superblocks(pr, 1);
81dadce5	221
912541b0	222	return blkid_do_safeprobe(pr);
81dadce5 KS	223	}
81dadce5 KS	224
9ec6e95b	225	static int builtin_blkid(struct udev_device dev, int argc, char argv[], bool test) {
329f7803	226	const char *root_partition;
912541b0 KS	227	int64_t offset = 0;
912541b0 KS	228	bool noraid = false;
d13394a8	229	_cleanup_close_ int fd = -1;
a1bb2402	230	_cleanup_blkid_free_probe_ blkid_probe pr = NULL;
912541b0 KS	231	const char *data;
	232	const char *name;
	233	int nvals;
	234	int i;
912541b0	235	int err = 0;
cbd353ce	236	bool is_gpt = false;
912541b0 KS	237
	238	static const struct option options[] = {
	239	{ "offset", optional_argument, NULL, 'o' },
	240	{ "noraid", no_argument, NULL, 'R' },
	241	{}
	242	};
	243
	244	for (;;) {
	245	int option;
	246
	247	option = getopt_long(argc, argv, "oR", options, NULL);
	248	if (option == -1)
	249	break;
	250
	251	switch (option) {
	252	case 'o':
	253	offset = strtoull(optarg, NULL, 0);
	254	break;
	255	case 'R':
	256	noraid = true;
	257	break;
	258	}
	259	}
	260
	261	pr = blkid_new_probe();
b49d9b50	262	if (!pr)
912541b0	263	return EXIT_FAILURE;
912541b0 KS	264
	265	blkid_probe_set_superblocks_flags(pr,
	266	BLKID_SUBLKS_LABEL \| BLKID_SUBLKS_UUID \|
	267	BLKID_SUBLKS_TYPE \| BLKID_SUBLKS_SECTYPE \|
1f47f550	268	BLKID_SUBLKS_USAGE \| BLKID_SUBLKS_VERSION);
912541b0 KS	269
	270	if (noraid)
	271	blkid_probe_filter_superblocks_usage(pr, BLKID_FLTR_NOTIN, BLKID_USAGE_RAID);
	272
	273	fd = open(udev_device_get_devnode(dev), O_RDONLY\|O_CLOEXEC);
	274	if (fd < 0) {
8d8ce9e2	275	err = log_debug_errno(errno, "Failure opening block device %s: %m", udev_device_get_devnode(dev));
912541b0 KS	276	goto out;
	277	}
	278
	279	err = blkid_probe_set_device(pr, fd, offset, 0);
	280	if (err < 0)
	281	goto out;
	282
1fa2f38f	283	log_debug("probe %s %sraid offset=%"PRIi64,
baa30fbc	284	udev_device_get_devnode(dev),
de0671ee	285	noraid ? "no" : "", offset);
912541b0 KS	286
	287	err = probe_superblocks(pr);
	288	if (err < 0)
	289	goto out;
	290
329f7803 LP	291	/* If we are a partition then our parent passed on the root
	292	* partition UUID to us */
	293	root_partition = udev_device_get_property_value(dev, "ID_PART_GPT_AUTO_ROOT_UUID");
	294
912541b0 KS	295	nvals = blkid_probe_numof_values(pr);
912541b0 KS	296	for (i = 0; i < nvals; i++) {
8a39439e	297	if (blkid_probe_get_value(pr, i, &name, &data, NULL))
912541b0	298	continue;
cbd353ce	299
8a39439e	300	print_property(dev, test, name, data);
cbd353ce	301
329f7803	302	/* Is this a disk with GPT partition table? */
cbd353ce LP	303	if (streq(name, "PTTYPE") && streq(data, "gpt"))
cbd353ce LP	304	is_gpt = true;
329f7803 LP	305
	306	/* Is this a partition that matches the root partition
	307	* property we inherited from our parent? */
	308	if (root_partition && streq(name, "PART_ENTRY_UUID") && streq(data, root_partition))
	309	udev_builtin_add_property(dev, test, "ID_PART_GPT_AUTO_ROOT", "1");
912541b0 KS	310	}
912541b0 KS	311
cbd353ce LP	312	if (is_gpt)
	313	find_gpt_root(dev, pr, test);
	314
81dadce5	315	out:
912541b0 KS	316	if (err < 0)
912541b0 KS	317	return EXIT_FAILURE;
d13394a8	318
912541b0	319	return EXIT_SUCCESS;
81dadce5 KS	320	}
	321
	322	const struct udev_builtin udev_builtin_blkid = {
912541b0 KS	323	.name = "blkid",
912541b0 KS	324	.cmd = builtin_blkid,
5ac0162c	325	.help = "Filesystem and partition probing",
912541b0	326	.run_once = true,
81dadce5	327	};