[thirdparty/util-linux.git] / misc-utils / lsblk-properties.c


#include <blkid.h>

#ifdef HAVE_LIBUDEV
# include <libudev.h>
#endif

#include "c.h"
#include "xalloc.h"
#include "mangle.h"
#include "path.h"
#include "nls.h"
#include "strutils.h"

#include "lsblk.h"

#ifdef HAVE_LIBUDEV
static struct udev *udev;
#endif

void lsblk_device_free_properties(struct lsblk_devprop *p)
{
	if (!p)
		return;

	free(p->fstype);
	free(p->fsversion);
	free(p->uuid);
	free(p->ptuuid);
	free(p->pttype);
	free(p->label);
	free(p->parttype);
	free(p->partuuid);
	free(p->partlabel);
	free(p->wwn);
	free(p->serial);
	free(p->model);
	free(p->partflags);
	free(p->byid);

	free(p->mode);
	free(p->owner);
	free(p->group);

	free(p);
}

#ifndef HAVE_LIBUDEV
static struct lsblk_devprop *get_properties_by_udev(struct lsblk_device *dev
				__attribute__((__unused__)))
{
	return NULL;
}
#else

#define LSBLK_UDEV_BYID_PREFIX "/dev/disk/by-id/"
#define LSBLK_UDEV_BYID_PREFIXSZ (sizeof(LSBLK_UDEV_BYID_PREFIX) - 1)

static struct lsblk_devprop *get_properties_by_udev(struct lsblk_device *ld)
{
	struct udev_device *dev;
	struct udev_list_entry *le;
	const char *data;
	struct lsblk_devprop *prop;
	size_t len;

	if (ld->udev_requested)
		return ld->properties;

	if (!udev)
		udev = udev_new();	/* global handler */
	if (!udev)
		goto done;

	dev = udev_device_new_from_subsystem_sysname(udev, "block", ld->name);
	if (!dev)
		goto done;

	DBG(DEV, ul_debugobj(ld, "%s: found udev properties", ld->name));

	if (ld->properties)
		lsblk_device_free_properties(ld->properties);
	prop = ld->properties = xcalloc(1, sizeof(*ld->properties));

	if ((data = udev_device_get_property_value(dev, "ID_FS_LABEL_ENC"))) {
		prop->label = xstrdup(data);
		unhexmangle_string(prop->label);
	}
	if ((data = udev_device_get_property_value(dev, "ID_FS_UUID_ENC"))) {
		prop->uuid = xstrdup(data);
		unhexmangle_string(prop->uuid);
	}
	if ((data = udev_device_get_property_value(dev, "ID_PART_TABLE_UUID")))
		prop->ptuuid = xstrdup(data);
	if ((data = udev_device_get_property_value(dev, "ID_PART_TABLE_TYPE")))
		prop->pttype = xstrdup(data);
	if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_NAME"))) {
		prop->partlabel = xstrdup(data);
		unhexmangle_string(prop->partlabel);
	}
	if ((data = udev_device_get_property_value(dev, "ID_FS_TYPE")))
		prop->fstype = xstrdup(data);
	if ((data = udev_device_get_property_value(dev, "ID_FS_VERSION")))
		prop->fsversion = xstrdup(data);
	if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_TYPE")))
		prop->parttype = xstrdup(data);
	if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_UUID")))
		prop->partuuid = xstrdup(data);
	if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_FLAGS")))
		prop->partflags = xstrdup(data);

	data = udev_device_get_property_value(dev, "ID_WWN_WITH_EXTENSION");
	if (!data)
		data = udev_device_get_property_value(dev, "ID_WWN");
	if (data)
		prop->wwn = xstrdup(data);

	data = udev_device_get_property_value(dev, "SCSI_IDENT_SERIAL");	/* sg3_utils do not use I_D prefix */
	if (!data)
		data = udev_device_get_property_value(dev, "ID_SCSI_SERIAL");
	if(!data)
		data = udev_device_get_property_value(dev, "ID_SERIAL_SHORT");
	if(!data)
		data = udev_device_get_property_value(dev, "ID_SERIAL");
	if (data) {
		prop->serial = xstrdup(data);
		normalize_whitespace((unsigned char *) prop->serial);
	}

	if ((data = udev_device_get_property_value(dev, "ID_MODEL_ENC"))) {
		prop->model = xstrdup(data);
		unhexmangle_string(prop->model);
		normalize_whitespace((unsigned char *) prop->model);
	} else if ((data = udev_device_get_property_value(dev, "ID_MODEL"))) {
		prop->model = xstrdup(data);
		normalize_whitespace((unsigned char *) prop->model);
	}

	/* select the shortest udev by-id symlink */
	len = 0;
	udev_list_entry_foreach(le, udev_device_get_devlinks_list_entry(dev)) {
		const char *name = udev_list_entry_get_name(le);
		size_t sz;

		if (!name || !startswith(name,  LSBLK_UDEV_BYID_PREFIX))
			continue;
		name += LSBLK_UDEV_BYID_PREFIXSZ;
		if (!*name)
			continue;
		sz = strlen(name);
		if (!len || sz < len) {
			len = sz;
			free(prop->byid);
			prop->byid = xstrdup(name);
		}
	}

	udev_device_unref(dev);
done:
	ld->udev_requested = 1;

	DBG(DEV, ul_debugobj(ld, " from udev"));
	return ld->properties;
}
#endif /* HAVE_LIBUDEV */


static int lookup(char *buf, char *pattern, char **value)
{
	char *p, *v;
	int len;

	/* do not re-fill value */
	if (!buf || *value)
		return 0;

	len = strlen(pattern);
	if (strncmp(buf, pattern, len) != 0)
		return 0;

	p = buf + len;
	if (*p != '=')
		return 0;
	p++;
	if (!*p || *p == '\n')
		return 0;
	v = p;
	for (; *p && *p != '\n'; p++) ;
	if (*p == '\n')
		*p = '\0';

	*value = xstrdup(v);
	return 1;
}

/* read device properties from fake text file (used on --sysroot) */
static struct lsblk_devprop *get_properties_by_file(struct lsblk_device *ld)
{
	struct lsblk_devprop *prop;
	struct path_cxt *pc;
	FILE *fp = NULL;
	struct stat sb;
	char buf[BUFSIZ];

	assert(lsblk->sysroot);

	if (ld->file_requested)
		return ld->properties;

	if (ld->properties || ld->filename) {
		lsblk_device_free_properties(ld->properties);
		ld->properties = NULL;
	}

	pc = ul_new_path("/");
	if (!pc)
		return NULL;
	if (ul_path_set_prefix(pc, lsblk->sysroot) != 0)
		goto done;
	if (ul_path_stat(pc, &sb, 0, ld->filename) != 0 || !S_ISREG(sb.st_mode))
		goto done;

	fp = ul_path_fopen(pc, "r", ld->filename);
	if (!fp)
		goto done;

	prop = ld->properties;
	if (!prop)
		prop = ld->properties = xcalloc(1, sizeof(*ld->properties));

	while (fgets(buf, sizeof(buf), fp) != NULL) {
		/* udev based */
		if (lookup(buf, "ID_FS_LABEL_ENC", &prop->label))
			unhexmangle_string(prop->label);
		else if (lookup(buf, "ID_FS_UUID_ENC", &prop->uuid))
			unhexmangle_string(prop->uuid);
		else if (lookup(buf, "ID_PART_ENTRY_NAME", &prop->partlabel))
			unhexmangle_string(prop->partlabel);
		else if (lookup(buf, "ID_PART_TABLE_UUID", &prop->ptuuid)) ;
		else if (lookup(buf, "ID_PART_TABLE_TYPE", &prop->pttype)) ;
		else if (lookup(buf, "ID_FS_TYPE", &prop->fstype)) ;
		else if (lookup(buf, "ID_FS_VERSION", &prop->fsversion)) ;
		else if (lookup(buf, "ID_PART_ENTRY_TYPE", &prop->parttype)) ;
		else if (lookup(buf, "ID_PART_ENTRY_UUID", &prop->partuuid)) ;
		else if (lookup(buf, "ID_PART_ENTRY_FLAGS", &prop->partflags)) ;
		else if (lookup(buf, "ID_MODEL", &prop->model)) ;
		else if (lookup(buf, "ID_WWN_WITH_EXTENSION", &prop->wwn)) ;
		else if (lookup(buf, "ID_WWN", &prop->wwn)) ;
		else if (lookup(buf, "SCSI_IDENT_SERIAL", &prop->serial)) ;	/* serial from sg3_utils */
		else if (lookup(buf, "ID_SCSI_SERIAL", &prop->serial)) ;
		else if (lookup(buf, "ID_SERIAL_SHORT", &prop->serial)) ;
		else if (lookup(buf, "ID_SERIAL", &prop->serial)) ;

		/* lsblk specific */
		else if (lookup(buf, "MODE", &prop->mode)) ;
		else if (lookup(buf, "OWNER", &prop->owner)) ;
		else if (lookup(buf, "GROUP", &prop->group)) ;

		else
			continue;
	}
done:
	if (fp)
		fclose(fp);
	ul_unref_path(pc);
	ld->file_requested = 1;

	DBG(DEV, ul_debugobj(ld, " from fake-file"));
	return ld->properties;
}


static struct lsblk_devprop *get_properties_by_blkid(struct lsblk_device *dev)
{
	blkid_probe pr = NULL;

	if (dev->blkid_requested)
		return dev->properties;

	if (!dev->size)
		goto done;
	if (getuid() != 0)
		goto done;;				/* no permissions to read from the device */

	pr = blkid_new_probe_from_filename(dev->filename);
	if (!pr)
		goto done;

	blkid_probe_enable_superblocks(pr, 1);
	blkid_probe_set_superblocks_flags(pr, BLKID_SUBLKS_LABEL |
					      BLKID_SUBLKS_UUID |
					      BLKID_SUBLKS_TYPE);
	blkid_probe_enable_partitions(pr, 1);
	blkid_probe_set_partitions_flags(pr, BLKID_PARTS_ENTRY_DETAILS);

	if (!blkid_do_safeprobe(pr)) {
		const char *data = NULL;
		struct lsblk_devprop *prop;

		if (dev->properties)
			lsblk_device_free_properties(dev->properties);
		prop = dev->properties = xcalloc(1, sizeof(*dev->properties));

		if (!blkid_probe_lookup_value(pr, "TYPE", &data, NULL))
			prop->fstype = xstrdup(data);
		if (!blkid_probe_lookup_value(pr, "UUID", &data, NULL))
			prop->uuid = xstrdup(data);
		if (!blkid_probe_lookup_value(pr, "PTUUID", &data, NULL))
			prop->ptuuid = xstrdup(data);
		if (!blkid_probe_lookup_value(pr, "PTTYPE", &data, NULL))
			prop->pttype = xstrdup(data);
		if (!blkid_probe_lookup_value(pr, "LABEL", &data, NULL))
			prop->label = xstrdup(data);
		if (!blkid_probe_lookup_value(pr, "VERSION", &data, NULL))
			prop->fsversion = xstrdup(data);
		if (!blkid_probe_lookup_value(pr, "PART_ENTRY_TYPE", &data, NULL))
			prop->parttype = xstrdup(data);
		if (!blkid_probe_lookup_value(pr, "PART_ENTRY_UUID", &data, NULL))
			prop->partuuid = xstrdup(data);
		if (!blkid_probe_lookup_value(pr, "PART_ENTRY_NAME", &data, NULL))
			prop->partlabel = xstrdup(data);
		if (!blkid_probe_lookup_value(pr, "PART_ENTRY_FLAGS", &data, NULL))
			prop->partflags = xstrdup(data);

		DBG(DEV, ul_debugobj(dev, "%s: found blkid properties", dev->name));
	}

done:
	blkid_free_probe(pr);

	DBG(DEV, ul_debugobj(dev, " from blkid"));
	dev->blkid_requested = 1;
	return dev->properties;
}

struct lsblk_devprop *lsblk_device_get_properties(struct lsblk_device *dev)
{
	struct lsblk_devprop *p = NULL;

	DBG(DEV, ul_debugobj(dev, "%s: properties requested", dev->filename));
	if (lsblk->sysroot)
		return get_properties_by_file(dev);

	p = get_properties_by_udev(dev);
	if (!p)
		p = get_properties_by_blkid(dev);
	return p;
}

void lsblk_properties_deinit(void)
{
#ifdef HAVE_LIBUDEV
	udev_unref(udev);
#endif
}


/*
 * Partition types
 */
struct lsblk_parttype {
	unsigned int	code;		/* type as number or zero */
	char		*name;		/* description */
	char		*typestr;	/* type as string or NULL */
};

static const struct lsblk_parttype mbr_types[] =
{
	#include "pt-mbr-partnames.h"
};

#define DEF_GUID(_u, _n) \
	{ \
		.typestr = (_u), \
		.name = (_n),    \
	}
static const struct lsblk_parttype gpt_types[] =
{
	#include "pt-gpt-partnames.h"
};

const char *lsblk_parttype_code_to_string(const char *code, const char *pttype)
{
	size_t i;

	if (!code || !pttype)
		return NULL;

	if (strcmp(pttype, "dos") == 0 || strcmp(pttype, "mbr") == 0) {
		char *end = NULL;
		unsigned int xcode;

		errno = 0;
		xcode = strtol(code, &end, 16);

		if (errno || *end != '\0')
			return NULL;

		for (i = 0; i < ARRAY_SIZE(mbr_types); i++) {
			const struct lsblk_parttype *t = &mbr_types[i];

			if (t->name && t->code == xcode)
				return t->name;
		}

	} else if (strcmp(pttype, "gpt") == 0) {
		for (i = 0; i < ARRAY_SIZE(gpt_types); i++) {
			const struct lsblk_parttype *t = &gpt_types[i];

			if (t->name && t->typestr &&
			    strcasecmp(code, t->typestr) == 0)
				return t->name;
		}
	}

	return NULL;
}
Commit	Line	Data
ccafadb7 KZ	1
	2	#include <blkid.h>
	3
	4	#ifdef HAVE_LIBUDEV
	5	# include <libudev.h>
	6	#endif
	7
	8	#include "c.h"
	9	#include "xalloc.h"
	10	#include "mangle.h"
7408a5d9	11	#include "path.h"
107e9559	12	#include "nls.h"
1775aaf1	13	#include "strutils.h"
ccafadb7 KZ	14
	15	#include "lsblk.h"
	16
	17	#ifdef HAVE_LIBUDEV
	18	static struct udev *udev;
	19	#endif
	20
	21	void lsblk_device_free_properties(struct lsblk_devprop *p)
	22	{
	23	if (!p)
	24	return;
	25
	26	free(p->fstype);
9cca1ef2	27	free(p->fsversion);
ccafadb7 KZ	28	free(p->uuid);
	29	free(p->ptuuid);
	30	free(p->pttype);
	31	free(p->label);
	32	free(p->parttype);
	33	free(p->partuuid);
	34	free(p->partlabel);
	35	free(p->wwn);
	36	free(p->serial);
	37	free(p->model);
7408a5d9	38	free(p->partflags);
ef7d50a0	39	free(p->byid);
ccafadb7	40
6f74ede5 KZ	41	free(p->mode);
	42	free(p->owner);
	43	free(p->group);
	44
ccafadb7 KZ	45	free(p);
	46	}
	47
	48	#ifndef HAVE_LIBUDEV
fed34a1e	49	static struct lsblk_devprop get_properties_by_udev(struct lsblk_device dev
ccafadb7 KZ	50	__attribute__((__unused__)))
	51	{
	52	return NULL;
	53	}
	54	#else
ef7d50a0 KZ	55
	56	#define LSBLK_UDEV_BYID_PREFIX "/dev/disk/by-id/"
	57	#define LSBLK_UDEV_BYID_PREFIXSZ (sizeof(LSBLK_UDEV_BYID_PREFIX) - 1)
	58
fed34a1e	59	static struct lsblk_devprop get_properties_by_udev(struct lsblk_device ld)
ccafadb7 KZ	60	{
ccafadb7 KZ	61	struct udev_device *dev;
ef7d50a0	62	struct udev_list_entry *le;
d1574dae KZ	63	const char *data;
d1574dae KZ	64	struct lsblk_devprop *prop;
ef7d50a0	65	size_t len;
ccafadb7	66
fed34a1e KZ	67	if (ld->udev_requested)
fed34a1e KZ	68	return ld->properties;
ccafadb7	69
ccafadb7 KZ	70	if (!udev)
	71	udev = udev_new(); /* global handler */
	72	if (!udev)
	73	goto done;
	74
fed34a1e	75	dev = udev_device_new_from_subsystem_sysname(udev, "block", ld->name);
d1574dae KZ	76	if (!dev)
	77	goto done;
	78
	79	DBG(DEV, ul_debugobj(ld, "%s: found udev properties", ld->name));
	80
	81	if (ld->properties)
	82	lsblk_device_free_properties(ld->properties);
	83	prop = ld->properties = xcalloc(1, sizeof(*ld->properties));
	84
	85	if ((data = udev_device_get_property_value(dev, "ID_FS_LABEL_ENC"))) {
	86	prop->label = xstrdup(data);
	87	unhexmangle_string(prop->label);
	88	}
	89	if ((data = udev_device_get_property_value(dev, "ID_FS_UUID_ENC"))) {
	90	prop->uuid = xstrdup(data);
	91	unhexmangle_string(prop->uuid);
	92	}
	93	if ((data = udev_device_get_property_value(dev, "ID_PART_TABLE_UUID")))
	94	prop->ptuuid = xstrdup(data);
	95	if ((data = udev_device_get_property_value(dev, "ID_PART_TABLE_TYPE")))
	96	prop->pttype = xstrdup(data);
	97	if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_NAME"))) {
	98	prop->partlabel = xstrdup(data);
	99	unhexmangle_string(prop->partlabel);
	100	}
	101	if ((data = udev_device_get_property_value(dev, "ID_FS_TYPE")))
	102	prop->fstype = xstrdup(data);
	103	if ((data = udev_device_get_property_value(dev, "ID_FS_VERSION")))
	104	prop->fsversion = xstrdup(data);
	105	if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_TYPE")))
	106	prop->parttype = xstrdup(data);
	107	if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_UUID")))
	108	prop->partuuid = xstrdup(data);
	109	if ((data = udev_device_get_property_value(dev, "ID_PART_ENTRY_FLAGS")))
	110	prop->partflags = xstrdup(data);
	111
	112	data = udev_device_get_property_value(dev, "ID_WWN_WITH_EXTENSION");
	113	if (!data)
	114	data = udev_device_get_property_value(dev, "ID_WWN");
	115	if (data)
	116	prop->wwn = xstrdup(data);
	117
	118	data = udev_device_get_property_value(dev, "SCSI_IDENT_SERIAL"); /* sg3_utils do not use I_D prefix */
	119	if (!data)
	120	data = udev_device_get_property_value(dev, "ID_SCSI_SERIAL");
	121	if(!data)
	122	data = udev_device_get_property_value(dev, "ID_SERIAL_SHORT");
	123	if(!data)
	124	data = udev_device_get_property_value(dev, "ID_SERIAL");
	125	if (data) {
	126	prop->serial = xstrdup(data);
	127	normalize_whitespace((unsigned char *) prop->serial);
	128	}
	129
	130	if ((data = udev_device_get_property_value(dev, "ID_MODEL_ENC"))) {
	131	prop->model = xstrdup(data);
	132	unhexmangle_string(prop->model);
	133	normalize_whitespace((unsigned char *) prop->model);
	134	} else if ((data = udev_device_get_property_value(dev, "ID_MODEL"))) {
	135	prop->model = xstrdup(data);
	136	normalize_whitespace((unsigned char *) prop->model);
ccafadb7 KZ	137	}
ccafadb7 KZ	138
ef7d50a0 KZ	139	/* select the shortest udev by-id symlink */
	140	len = 0;
	141	udev_list_entry_foreach(le, udev_device_get_devlinks_list_entry(dev)) {
	142	const char *name = udev_list_entry_get_name(le);
	143	size_t sz;
	144
	145	if (!name \|\| !startswith(name, LSBLK_UDEV_BYID_PREFIX))
	146	continue;
	147	name += LSBLK_UDEV_BYID_PREFIXSZ;
	148	if (!*name)
	149	continue;
	150	sz = strlen(name);
	151	if (!len \|\| sz < len) {
	152	len = sz;
	153	free(prop->byid);
	154	prop->byid = xstrdup(name);
	155	}
	156	}
	157
d1574dae	158	udev_device_unref(dev);
ccafadb7	159	done:
fed34a1e	160	ld->udev_requested = 1;
7408a5d9 KZ	161
7408a5d9 KZ	162	DBG(DEV, ul_debugobj(ld, " from udev"));
fed34a1e	163	return ld->properties;
ccafadb7 KZ	164	}
	165	#endif /* HAVE_LIBUDEV */
	166
7408a5d9 KZ	167
	168	static int lookup(char buf, char pattern, char **value)
	169	{
	170	char p, v;
	171	int len;
	172
	173	/* do not re-fill value */
	174	if (!buf \|\| *value)
	175	return 0;
	176
	177	len = strlen(pattern);
ad296391	178	if (strncmp(buf, pattern, len) != 0)
7408a5d9 KZ	179	return 0;
	180
	181	p = buf + len;
	182	if (*p != '=')
	183	return 0;
	184	p++;
	185	if (!p \|\| p == '\n')
	186	return 0;
	187	v = p;
	188	for (; p && p != '\n'; p++) ;
	189	if (*p == '\n')
	190	*p = '\0';
	191
	192	*value = xstrdup(v);
	193	return 1;
	194	}
	195
	196	/* read device properties from fake text file (used on --sysroot) */
	197	static struct lsblk_devprop get_properties_by_file(struct lsblk_device ld)
	198	{
	199	struct lsblk_devprop *prop;
	200	struct path_cxt *pc;
	201	FILE *fp = NULL;
	202	struct stat sb;
	203	char buf[BUFSIZ];
	204
eea06b92 KZ	205	assert(lsblk->sysroot);
eea06b92 KZ	206
7408a5d9 KZ	207	if (ld->file_requested)
	208	return ld->properties;
	209
7408a5d9 KZ	210	if (ld->properties \|\| ld->filename) {
	211	lsblk_device_free_properties(ld->properties);
	212	ld->properties = NULL;
	213	}
	214
	215	pc = ul_new_path("/");
	216	if (!pc)
	217	return NULL;
	218	if (ul_path_set_prefix(pc, lsblk->sysroot) != 0)
	219	goto done;
db9ad223	220	if (ul_path_stat(pc, &sb, 0, ld->filename) != 0 \|\| !S_ISREG(sb.st_mode))
7408a5d9 KZ	221	goto done;
	222
	223	fp = ul_path_fopen(pc, "r", ld->filename);
	224	if (!fp)
	225	goto done;
	226
	227	prop = ld->properties;
	228	if (!prop)
	229	prop = ld->properties = xcalloc(1, sizeof(*ld->properties));
	230
	231	while (fgets(buf, sizeof(buf), fp) != NULL) {
6f74ede5	232	/* udev based */
7408a5d9 KZ	233	if (lookup(buf, "ID_FS_LABEL_ENC", &prop->label))
	234	unhexmangle_string(prop->label);
	235	else if (lookup(buf, "ID_FS_UUID_ENC", &prop->uuid))
	236	unhexmangle_string(prop->uuid);
	237	else if (lookup(buf, "ID_PART_ENTRY_NAME", &prop->partlabel))
	238	unhexmangle_string(prop->partlabel);
	239	else if (lookup(buf, "ID_PART_TABLE_UUID", &prop->ptuuid)) ;
	240	else if (lookup(buf, "ID_PART_TABLE_TYPE", &prop->pttype)) ;
	241	else if (lookup(buf, "ID_FS_TYPE", &prop->fstype)) ;
9cca1ef2	242	else if (lookup(buf, "ID_FS_VERSION", &prop->fsversion)) ;
7408a5d9 KZ	243	else if (lookup(buf, "ID_PART_ENTRY_TYPE", &prop->parttype)) ;
	244	else if (lookup(buf, "ID_PART_ENTRY_UUID", &prop->partuuid)) ;
	245	else if (lookup(buf, "ID_PART_ENTRY_FLAGS", &prop->partflags)) ;
	246	else if (lookup(buf, "ID_MODEL", &prop->model)) ;
	247	else if (lookup(buf, "ID_WWN_WITH_EXTENSION", &prop->wwn)) ;
	248	else if (lookup(buf, "ID_WWN", &prop->wwn)) ;
b95752ad	249	else if (lookup(buf, "SCSI_IDENT_SERIAL", &prop->serial)) ; /* serial from sg3_utils */
7408a5d9 KZ	250	else if (lookup(buf, "ID_SCSI_SERIAL", &prop->serial)) ;
7408a5d9 KZ	251	else if (lookup(buf, "ID_SERIAL_SHORT", &prop->serial)) ;
e81d0f80	252	else if (lookup(buf, "ID_SERIAL", &prop->serial)) ;
6f74ede5 KZ	253
	254	/* lsblk specific */
	255	else if (lookup(buf, "MODE", &prop->mode)) ;
	256	else if (lookup(buf, "OWNER", &prop->owner)) ;
	257	else if (lookup(buf, "GROUP", &prop->group)) ;
	258
7408a5d9 KZ	259	else
	260	continue;
	261	}
	262	done:
	263	if (fp)
	264	fclose(fp);
	265	ul_unref_path(pc);
	266	ld->file_requested = 1;
	267
	268	DBG(DEV, ul_debugobj(ld, " from fake-file"));
	269	return ld->properties;
	270	}
	271
	272
fed34a1e	273	static struct lsblk_devprop get_properties_by_blkid(struct lsblk_device dev)
ccafadb7 KZ	274	{
	275	blkid_probe pr = NULL;
	276
fed34a1e KZ	277	if (dev->blkid_requested)
fed34a1e KZ	278	return dev->properties;
ccafadb7	279
fed34a1e	280	if (!dev->size)
ccafadb7 KZ	281	goto done;
	282	if (getuid() != 0)
	283	goto done;; /* no permissions to read from the device */
	284
fed34a1e	285	pr = blkid_new_probe_from_filename(dev->filename);
ccafadb7 KZ	286	if (!pr)
	287	goto done;
	288
	289	blkid_probe_enable_superblocks(pr, 1);
	290	blkid_probe_set_superblocks_flags(pr, BLKID_SUBLKS_LABEL \|
	291	BLKID_SUBLKS_UUID \|
	292	BLKID_SUBLKS_TYPE);
	293	blkid_probe_enable_partitions(pr, 1);
	294	blkid_probe_set_partitions_flags(pr, BLKID_PARTS_ENTRY_DETAILS);
	295
	296	if (!blkid_do_safeprobe(pr)) {
	297	const char *data = NULL;
	298	struct lsblk_devprop *prop;
	299
fed34a1e KZ	300	if (dev->properties)
	301	lsblk_device_free_properties(dev->properties);
	302	prop = dev->properties = xcalloc(1, sizeof(*dev->properties));
ccafadb7 KZ	303
	304	if (!blkid_probe_lookup_value(pr, "TYPE", &data, NULL))
	305	prop->fstype = xstrdup(data);
	306	if (!blkid_probe_lookup_value(pr, "UUID", &data, NULL))
	307	prop->uuid = xstrdup(data);
	308	if (!blkid_probe_lookup_value(pr, "PTUUID", &data, NULL))
	309	prop->ptuuid = xstrdup(data);
	310	if (!blkid_probe_lookup_value(pr, "PTTYPE", &data, NULL))
	311	prop->pttype = xstrdup(data);
	312	if (!blkid_probe_lookup_value(pr, "LABEL", &data, NULL))
	313	prop->label = xstrdup(data);
9cca1ef2 KZ	314	if (!blkid_probe_lookup_value(pr, "VERSION", &data, NULL))
9cca1ef2 KZ	315	prop->fsversion = xstrdup(data);
ccafadb7 KZ	316	if (!blkid_probe_lookup_value(pr, "PART_ENTRY_TYPE", &data, NULL))
	317	prop->parttype = xstrdup(data);
	318	if (!blkid_probe_lookup_value(pr, "PART_ENTRY_UUID", &data, NULL))
	319	prop->partuuid = xstrdup(data);
	320	if (!blkid_probe_lookup_value(pr, "PART_ENTRY_NAME", &data, NULL))
	321	prop->partlabel = xstrdup(data);
	322	if (!blkid_probe_lookup_value(pr, "PART_ENTRY_FLAGS", &data, NULL))
	323	prop->partflags = xstrdup(data);
	324
fed34a1e	325	DBG(DEV, ul_debugobj(dev, "%s: found blkid properties", dev->name));
ccafadb7 KZ	326	}
	327
	328	done:
	329	blkid_free_probe(pr);
	330
7408a5d9	331	DBG(DEV, ul_debugobj(dev, " from blkid"));
fed34a1e KZ	332	dev->blkid_requested = 1;
fed34a1e KZ	333	return dev->properties;
ccafadb7 KZ	334	}
ccafadb7 KZ	335
fed34a1e	336	struct lsblk_devprop lsblk_device_get_properties(struct lsblk_device dev)
ccafadb7	337	{
7408a5d9	338	struct lsblk_devprop *p = NULL;
ccafadb7	339
7408a5d9 KZ	340	DBG(DEV, ul_debugobj(dev, "%s: properties requested", dev->filename));
7408a5d9 KZ	341	if (lsblk->sysroot)
eea06b92 KZ	342	return get_properties_by_file(dev);
	343
	344	p = get_properties_by_udev(dev);
ccafadb7	345	if (!p)
fed34a1e	346	p = get_properties_by_blkid(dev);
ccafadb7 KZ	347	return p;
	348	}
	349
	350	void lsblk_properties_deinit(void)
	351	{
	352	#ifdef HAVE_LIBUDEV
	353	udev_unref(udev);
	354	#endif
	355	}
107e9559 KZ	356
	357
	358
	359	/*
	360	* Partition types
	361	*/
	362	struct lsblk_parttype {
	363	unsigned int code; /* type as number or zero */
	364	char name; / description */
	365	char typestr; / type as string or NULL */
	366	};
	367
	368	static const struct lsblk_parttype mbr_types[] =
	369	{
	370	#include "pt-mbr-partnames.h"
	371	};
	372
	373	#define DEF_GUID(_u, _n) \
	374	{ \
	375	.typestr = (_u), \
	376	.name = (_n), \
	377	}
	378	static const struct lsblk_parttype gpt_types[] =
	379	{
	380	#include "pt-gpt-partnames.h"
	381	};
	382
	383	const char lsblk_parttype_code_to_string(const char code, const char *pttype)
	384	{
	385	size_t i;
	386
	387	if (!code \|\| !pttype)
	388	return NULL;
	389
	390	if (strcmp(pttype, "dos") == 0 \|\| strcmp(pttype, "mbr") == 0) {
	391	char *end = NULL;
	392	unsigned int xcode;
	393
	394	errno = 0;
	395	xcode = strtol(code, &end, 16);
	396
	397	if (errno \|\| *end != '\0')
	398	return NULL;
	399
	400	for (i = 0; i < ARRAY_SIZE(mbr_types); i++) {
	401	const struct lsblk_parttype *t = &mbr_types[i];
	402
	403	if (t->name && t->code == xcode)
	404	return t->name;
	405	}
	406
	407	} else if (strcmp(pttype, "gpt") == 0) {
	408	for (i = 0; i < ARRAY_SIZE(gpt_types); i++) {
	409	const struct lsblk_parttype *t = &gpt_types[i];
	410
	411	if (t->name && t->typestr &&
	412	strcasecmp(code, t->typestr) == 0)
	413	return t->name;
	414	}
	415	}
	416
	417	return NULL;
	418	}