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Diffstat (limited to 'libblkid/src/superblocks/superblocks.c')
| -rw-r--r-- | libblkid/src/superblocks/superblocks.c | 813 |
1 files changed, 813 insertions, 0 deletions
diff --git a/libblkid/src/superblocks/superblocks.c b/libblkid/src/superblocks/superblocks.c new file mode 100644 index 000000000..80bd6e596 --- /dev/null +++ b/libblkid/src/superblocks/superblocks.c @@ -0,0 +1,813 @@ +/* + * superblocks.c - reads information from filesystem and raid superblocks + * + * Copyright (C) 2008-2009 Karel Zak <kzak@redhat.com> + * + * This file may be redistributed under the terms of the + * GNU Lesser General Public License. + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> +#include <ctype.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> +#include <stdint.h> +#include <stdarg.h> + +#include "superblocks.h" + +/** + * SECTION:superblocks + * @title: Superblocks probing + * @short_description: filesystems and raids superblocks probing. + * + * The library API has been originally designed for superblocks probing only. + * This is reason why some *deprecated* superblock specific functions don't use + * '_superblocks_' namespace in the function name. Please, don't use these + * functions in new code. + * + * The 'superblocks' probers support NAME=value (tags) interface only. The + * superblocks probing is enabled by default (and controlled by + * blkid_probe_enable_superblocks()). + * + * Currently supported tags: + * + * @TYPE: filesystem type + * + * @SEC_TYPE: secondary filesystem type + * + * @LABEL: filesystem label + * + * @LABEL_RAW: raw label from FS superblock + * + * @UUID: filesystem UUID (lower case) + * + * @UUID_SUB: subvolume uuid (e.g. btrfs) + * + * @LOGUUID: external log UUID (e.g. xfs) + * + * @UUID_RAW: raw UUID from FS superblock + * + * @EXT_JOURNAL: external journal UUID + * + * @USAGE: usage string: "raid", "filesystem", ... + * + * @VERSION: filesystem version + * + * @MOUNT: cluster mount name (?) -- ocfs only + * + * @SBMAGIC: super block magic string + * + * @SBMAGIC_OFFSET: offset of SBMAGIC + * + * @FSSIZE: size of filessystem [not-implemented yet] + * + * @SYSTEM_ID: ISO9660 system identifier + * + * @PUBLISHER_ID: ISO9660 publisher identifier + * + * @APPLICATION_ID: ISO9660 application identifier + * + * @BOOT_SYSTEM_ID: ISO9660 boot system identifier + */ + +static int superblocks_probe(blkid_probe pr, struct blkid_chain *chn); +static int superblocks_safeprobe(blkid_probe pr, struct blkid_chain *chn); + +static int blkid_probe_set_usage(blkid_probe pr, int usage); + + +/* + * Superblocks chains probing functions + */ +static const struct blkid_idinfo *idinfos[] = +{ + /* RAIDs */ + &linuxraid_idinfo, + &ddfraid_idinfo, + &iswraid_idinfo, + &lsiraid_idinfo, + &viaraid_idinfo, + &silraid_idinfo, + &nvraid_idinfo, + &pdcraid_idinfo, + &highpoint45x_idinfo, + &highpoint37x_idinfo, + &adraid_idinfo, + &jmraid_idinfo, + + &bcache_idinfo, + &drbd_idinfo, + &drbdproxy_datalog_idinfo, + &lvm2_idinfo, + &lvm1_idinfo, + &snapcow_idinfo, + &verity_hash_idinfo, + &luks_idinfo, + &vmfs_volume_idinfo, + + /* Filesystems */ + &vfat_idinfo, + &swsuspend_idinfo, + &swap_idinfo, + &xfs_idinfo, + &xfs_log_idinfo, + &ext4dev_idinfo, + &ext4_idinfo, + &ext3_idinfo, + &ext2_idinfo, + &jbd_idinfo, + &reiser_idinfo, + &reiser4_idinfo, + &jfs_idinfo, + &udf_idinfo, + &iso9660_idinfo, + &zfs_idinfo, + &hfsplus_idinfo, + &hfs_idinfo, + &ufs_idinfo, + &hpfs_idinfo, + &sysv_idinfo, + &xenix_idinfo, + &ntfs_idinfo, + &refs_idinfo, + &cramfs_idinfo, + &romfs_idinfo, + &minix_idinfo, + &gfs_idinfo, + &gfs2_idinfo, + &ocfs_idinfo, + &ocfs2_idinfo, + &oracleasm_idinfo, + &vxfs_idinfo, + &squashfs_idinfo, + &squashfs3_idinfo, + &netware_idinfo, + &btrfs_idinfo, + &ubifs_idinfo, + &bfs_idinfo, + &vmfs_fs_idinfo, + &befs_idinfo, + &nilfs2_idinfo, + &exfat_idinfo, + &f2fs_idinfo +}; + +/* + * Driver definition + */ +const struct blkid_chaindrv superblocks_drv = { + .id = BLKID_CHAIN_SUBLKS, + .name = "superblocks", + .dflt_enabled = TRUE, + .dflt_flags = BLKID_SUBLKS_DEFAULT, + .idinfos = idinfos, + .nidinfos = ARRAY_SIZE(idinfos), + .has_fltr = TRUE, + .probe = superblocks_probe, + .safeprobe = superblocks_safeprobe, +}; + +/** + * blkid_probe_enable_superblocks: + * @pr: probe + * @enable: TRUE/FALSE + * + * Enables/disables the superblocks probing for non-binary interface. + * + * Returns: 0 on success, or -1 in case of error. + */ +int blkid_probe_enable_superblocks(blkid_probe pr, int enable) +{ + if (!pr) + return -1; + pr->chains[BLKID_CHAIN_SUBLKS].enabled = enable; + return 0; +} + +/** + * blkid_probe_set_superblocks_flags: + * @pr: prober + * @flags: BLKID_SUBLKS_* flags + * + * Sets probing flags to the superblocks prober. This function is optional, the + * default are BLKID_SUBLKS_DEFAULTS flags. + * + * Returns: 0 on success, or -1 in case of error. + */ +int blkid_probe_set_superblocks_flags(blkid_probe pr, int flags) +{ + if (!pr) + return -1; + + pr->chains[BLKID_CHAIN_SUBLKS].flags = flags; + return 0; +} + +/** + * blkid_probe_reset_superblocks_filter: + * @pr: prober + * + * Resets superblocks probing filter + * + * Returns: 0 on success, or -1 in case of error. + */ +int blkid_probe_reset_superblocks_filter(blkid_probe pr) +{ + return __blkid_probe_reset_filter(pr, BLKID_CHAIN_SUBLKS); +} + +/** + * blkid_probe_invert_superblocks_filter: + * @pr: prober + * + * Inverts superblocks probing filter + * + * Returns: 0 on success, or -1 in case of error. + */ +int blkid_probe_invert_superblocks_filter(blkid_probe pr) +{ + return __blkid_probe_invert_filter(pr, BLKID_CHAIN_SUBLKS); +} + +/** + * blkid_probe_filter_superblocks_type: + * @pr: prober + * @flag: filter BLKID_FLTR_{NOTIN,ONLYIN} flag + * @names: NULL terminated array of probing function names (e.g. "vfat"). + * + * %BLKID_FLTR_NOTIN - probe for all items which are NOT IN @names; + * + * %BLKID_FLTR_ONLYIN - probe for items which are IN @names + * + * Returns: 0 on success, or -1 in case of error. + */ +int blkid_probe_filter_superblocks_type(blkid_probe pr, int flag, char *names[]) +{ + return __blkid_probe_filter_types(pr, BLKID_CHAIN_SUBLKS, flag, names); +} + +/** + * blkid_probe_filter_superblocks_usage: + * @pr: prober + * @flag: filter BLKID_FLTR_{NOTIN,ONLYIN} flag + * @usage: BLKID_USAGE_* flags + * + * %BLKID_FLTR_NOTIN - probe for all items which are NOT IN @usage; + * + * %BLKID_FLTR_ONLYIN - probe for items which are IN @usage + * + * Returns: 0 on success, or -1 in case of error. + */ +int blkid_probe_filter_superblocks_usage(blkid_probe pr, int flag, int usage) +{ + unsigned long *fltr; + struct blkid_chain *chn; + size_t i; + + fltr = blkid_probe_get_filter(pr, BLKID_CHAIN_SUBLKS, TRUE); + if (!fltr) + return -1; + + chn = &pr->chains[BLKID_CHAIN_SUBLKS]; + + for (i = 0; i < chn->driver->nidinfos; i++) { + const struct blkid_idinfo *id = chn->driver->idinfos[i]; + + if (id->usage & usage) { + if (flag & BLKID_FLTR_NOTIN) + blkid_bmp_set_item(chn->fltr, i); + } else if (flag & BLKID_FLTR_ONLYIN) + blkid_bmp_set_item(chn->fltr, i); + } + DBG(LOWPROBE, ul_debug("a new probing usage-filter initialized")); + return 0; +} + +/** + * blkid_known_fstype: + * @fstype: filesystem name + * + * Returns: 1 for known filesytems, or 0 for unknown filesystem. + */ +int blkid_known_fstype(const char *fstype) +{ + size_t i; + + if (!fstype) + return 0; + + for (i = 0; i < ARRAY_SIZE(idinfos); i++) { + const struct blkid_idinfo *id = idinfos[i]; + if (strcmp(id->name, fstype) == 0) + return 1; + } + return 0; +} + +/** + * blkid_superblocks_get_name: + * @idx: number >= 0 + * @name: returns name of supported filesystem/raid (optional) + * @usage: returns BLKID_USAGE_* flags, (optional) + * + * Returns: -1 if @idx is out of range, or 0 on success. + */ +int blkid_superblocks_get_name(size_t idx, const char **name, int *usage) +{ + if (idx < ARRAY_SIZE(idinfos)) { + if (name) + *name = idinfos[idx]->name; + if (usage) + *usage = idinfos[idx]->usage; + return 0; + } + return -1; +} + +/* + * The blkid_do_probe() backend. + */ +static int superblocks_probe(blkid_probe pr, struct blkid_chain *chn) +{ + size_t i; + int rc = BLKID_PROBE_NONE; + + if (!pr || chn->idx < -1) + return -EINVAL; + + blkid_probe_chain_reset_vals(pr, chn); + + if (pr->flags & BLKID_FL_NOSCAN_DEV) + return BLKID_PROBE_NONE; + + if (pr->size <= 0 || (pr->size <= 1024 && !S_ISCHR(pr->mode))) + /* Ignore very very small block devices or regular files (e.g. + * extended partitions). Note that size of the UBI char devices + * is 1 byte */ + return BLKID_PROBE_NONE; + + DBG(LOWPROBE, ul_debug("--> starting probing loop [SUBLKS idx=%d]", + chn->idx)); + + i = chn->idx < 0 ? 0 : chn->idx + 1U; + + for ( ; i < ARRAY_SIZE(idinfos); i++) { + const struct blkid_idinfo *id; + const struct blkid_idmag *mag = NULL; + blkid_loff_t off = 0; + + chn->idx = i; + id = idinfos[i]; + + if (chn->fltr && blkid_bmp_get_item(chn->fltr, i)) { + DBG(LOWPROBE, ul_debug("filter out: %s", id->name)); + rc = BLKID_PROBE_NONE; + continue; + } + + if (id->minsz && id->minsz > pr->size) { + rc = BLKID_PROBE_NONE; + continue; /* the device is too small */ + } + + /* don't probe for RAIDs, swap or journal on CD/DVDs */ + if ((id->usage & (BLKID_USAGE_RAID | BLKID_USAGE_OTHER)) && + blkid_probe_is_cdrom(pr)) { + rc = BLKID_PROBE_NONE; + continue; + } + + /* don't probe for RAIDs on floppies */ + if ((id->usage & BLKID_USAGE_RAID) && blkid_probe_is_tiny(pr)) { + rc = BLKID_PROBE_NONE; + continue; + } + + DBG(LOWPROBE, ul_debug("[%zd] %s:", i, id->name)); + + rc = blkid_probe_get_idmag(pr, id, &off, &mag); + if (rc < 0) + break; + if (rc != BLKID_PROBE_OK) + continue; + + /* final check by probing function */ + if (id->probefunc) { + DBG(LOWPROBE, ul_debug("\tcall probefunc()")); + rc = id->probefunc(pr, mag); + if (rc != BLKID_PROBE_OK) { + blkid_probe_chain_reset_vals(pr, chn); + if (rc < 0) + break; + continue; + } + } + + /* all cheks passed */ + if (chn->flags & BLKID_SUBLKS_TYPE) + rc = blkid_probe_set_value(pr, "TYPE", + (unsigned char *) id->name, + strlen(id->name) + 1); + + if (!rc) + rc = blkid_probe_set_usage(pr, id->usage); + + if (!rc && mag) + rc = blkid_probe_set_magic(pr, off, mag->len, + (unsigned char *) mag->magic); + if (rc) { + blkid_probe_chain_reset_vals(pr, chn); + DBG(LOWPROBE, ul_debug("failed to set result -- ignore")); + continue; + } + + DBG(LOWPROBE, ul_debug("<-- leaving probing loop (type=%s) [SUBLKS idx=%d]", + id->name, chn->idx)); + return BLKID_PROBE_OK; + } + + DBG(LOWPROBE, ul_debug("<-- leaving probing loop (failed=%d) [SUBLKS idx=%d]", + rc, chn->idx)); + return rc; +} + +/* + * This is the same function as blkid_do_probe(), but returns only one result + * (cannot be used in while()) and checks for ambivalen results (more + * filesystems on the device) -- in such case returns -2. + * + * The function does not check for filesystems when a RAID or crypto signature + * is detected. The function also does not check for collision between RAIDs + * and crypto devices. The first detected RAID or crypto device is returned. + * + * The function does not probe for ambivalent results on very small devices + * (e.g. floppies), on small devices the first detected filesystem is returned. + */ +static int superblocks_safeprobe(blkid_probe pr, struct blkid_chain *chn) +{ + struct blkid_prval vals[BLKID_NVALS_SUBLKS]; + int nvals = BLKID_NVALS_SUBLKS; + int idx = -1; + int count = 0; + int intol = 0; + int rc; + + if (pr->flags & BLKID_FL_NOSCAN_DEV) + return BLKID_PROBE_NONE; + + while ((rc = superblocks_probe(pr, chn)) == 0) { + + if (blkid_probe_is_tiny(pr) && !count) + return BLKID_PROBE_OK; /* floppy or so -- returns the first result. */ + + count++; + + if (chn->idx >= 0 && + idinfos[chn->idx]->usage & (BLKID_USAGE_RAID | BLKID_USAGE_CRYPTO)) + break; + + if (chn->idx >= 0 && + !(idinfos[chn->idx]->flags & BLKID_IDINFO_TOLERANT)) + intol++; + + if (count == 1) { + /* save the first result */ + nvals = blkid_probe_chain_copy_vals(pr, chn, vals, nvals); + idx = chn->idx; + } + } + + if (rc < 0) + return rc; /* error */ + + if (count > 1 && intol) { + DBG(LOWPROBE, ul_debug("ERROR: superblocks chain: " + "ambivalent result detected (%d filesystems)!", + count)); + return -2; /* error, ambivalent result (more FS) */ + } + if (!count) + return BLKID_PROBE_NONE; + + if (idx != -1) { + /* restore the first result */ + blkid_probe_chain_reset_vals(pr, chn); + blkid_probe_append_vals(pr, vals, nvals); + chn->idx = idx; + } + + /* + * The RAID device could be partitioned. The problem are RAID1 devices + * where the partition table is visible from underlaying devices. We + * have to ignore such partition tables. + */ + if (chn->idx >= 0 && idinfos[chn->idx]->usage & BLKID_USAGE_RAID) + pr->prob_flags |= BLKID_PROBE_FL_IGNORE_PT; + + return BLKID_PROBE_OK; +} + +int blkid_probe_set_version(blkid_probe pr, const char *version) +{ + struct blkid_chain *chn = blkid_probe_get_chain(pr); + + if (chn->flags & BLKID_SUBLKS_VERSION) + return blkid_probe_set_value(pr, "VERSION", + (unsigned char *) version, strlen(version) + 1); + return 0; +} + + +int blkid_probe_sprintf_version(blkid_probe pr, const char *fmt, ...) +{ + struct blkid_chain *chn = blkid_probe_get_chain(pr); + int rc = 0; + + if (chn->flags & BLKID_SUBLKS_VERSION) { + va_list ap; + + va_start(ap, fmt); + rc = blkid_probe_vsprintf_value(pr, "VERSION", fmt, ap); + va_end(ap); + } + return rc; +} + +static int blkid_probe_set_usage(blkid_probe pr, int usage) +{ + struct blkid_chain *chn = blkid_probe_get_chain(pr); + char *u = NULL; + + if (!(chn->flags & BLKID_SUBLKS_USAGE)) + return 0; + + if (usage & BLKID_USAGE_FILESYSTEM) + u = "filesystem"; + else if (usage & BLKID_USAGE_RAID) + u = "raid"; + else if (usage & BLKID_USAGE_CRYPTO) + u = "crypto"; + else if (usage & BLKID_USAGE_OTHER) + u = "other"; + else + u = "unknown"; + + return blkid_probe_set_value(pr, "USAGE", (unsigned char *) u, strlen(u) + 1); +} + +int blkid_probe_set_id_label(blkid_probe pr, const char *name, + unsigned char *data, size_t len) +{ + struct blkid_chain *chn = blkid_probe_get_chain(pr); + struct blkid_prval *v; + + if (!(chn->flags & BLKID_SUBLKS_LABEL)) + return 0; + + v = blkid_probe_assign_value(pr, name); + if (!v) + return -1; + + if (len >= BLKID_PROBVAL_BUFSIZ) + len = BLKID_PROBVAL_BUFSIZ - 1; /* make a space for \0 */ + + memcpy(v->data, data, len); + v->data[len] = '\0'; + + /* remove white spaces */ + v->len = blkid_rtrim_whitespace(v->data) + 1; + if (v->len > 1) + v->len = blkid_ltrim_whitespace(v->data) + 1; + + if (v->len <= 1) + blkid_probe_reset_last_value(pr); /* ignore empty */ + return 0; +} + +int blkid_probe_set_label(blkid_probe pr, unsigned char *label, size_t len) +{ + struct blkid_chain *chn = blkid_probe_get_chain(pr); + struct blkid_prval *v; + if (len > BLKID_PROBVAL_BUFSIZ) + len = BLKID_PROBVAL_BUFSIZ; + + if ((chn->flags & BLKID_SUBLKS_LABELRAW) && + blkid_probe_set_value(pr, "LABEL_RAW", label, len) < 0) + return -1; + if (!(chn->flags & BLKID_SUBLKS_LABEL)) + return 0; + v = blkid_probe_assign_value(pr, "LABEL"); + if (!v) + return -1; + + if (len == BLKID_PROBVAL_BUFSIZ) + len--; /* make a space for \0 */ + + memcpy(v->data, label, len); + v->data[len] = '\0'; + + v->len = blkid_rtrim_whitespace(v->data) + 1; + if (v->len == 1) + blkid_probe_reset_last_value(pr); + return 0; +} + +int blkid_probe_set_utf8label(blkid_probe pr, unsigned char *label, + size_t len, int enc) +{ + struct blkid_chain *chn = blkid_probe_get_chain(pr); + struct blkid_prval *v; + + if ((chn->flags & BLKID_SUBLKS_LABELRAW) && + blkid_probe_set_value(pr, "LABEL_RAW", label, len) < 0) + return -1; + if (!(chn->flags & BLKID_SUBLKS_LABEL)) + return 0; + v = blkid_probe_assign_value(pr, "LABEL"); + if (!v) + return -1; + + blkid_encode_to_utf8(enc, v->data, sizeof(v->data), label, len); + v->len = blkid_rtrim_whitespace(v->data) + 1; + if (v->len == 1) + blkid_probe_reset_last_value(pr); + return 0; +} + +int blkid_probe_sprintf_uuid(blkid_probe pr, unsigned char *uuid, + size_t len, const char *fmt, ...) +{ + struct blkid_chain *chn = blkid_probe_get_chain(pr); + int rc = -1; + va_list ap; + + if (len > BLKID_PROBVAL_BUFSIZ) + len = BLKID_PROBVAL_BUFSIZ; + + if (blkid_uuid_is_empty(uuid, len)) + return 0; + + if ((chn->flags & BLKID_SUBLKS_UUIDRAW) && + blkid_probe_set_value(pr, "UUID_RAW", uuid, len) < 0) + return -1; + if (!(chn->flags & BLKID_SUBLKS_UUID)) + return 0; + + va_start(ap, fmt); + rc = blkid_probe_vsprintf_value(pr, "UUID", fmt, ap); + va_end(ap); + + /* convert to lower case (..be paranoid) */ + if (!rc) { + size_t i; + struct blkid_prval *v = __blkid_probe_get_value(pr, + blkid_probe_numof_values(pr)); + if (v) { + for (i = 0; i < v->len; i++) + if (v->data[i] >= 'A' && v->data[i] <= 'F') + v->data[i] = (v->data[i] - 'A') + 'a'; + } + } + return rc; +} + +/* function to set UUIDs that are in suberblocks stored as strings */ +int blkid_probe_strncpy_uuid(blkid_probe pr, unsigned char *str, size_t len) +{ + struct blkid_chain *chn = blkid_probe_get_chain(pr); + struct blkid_prval *v; + + if (str == NULL || *str == '\0') + return -1; + if (!len) + len = strlen((char *) str); + if (len > BLKID_PROBVAL_BUFSIZ) + len = BLKID_PROBVAL_BUFSIZ; + + if ((chn->flags & BLKID_SUBLKS_UUIDRAW) && + blkid_probe_set_value(pr, "UUID_RAW", str, len) < 0) + return -1; + if (!(chn->flags & BLKID_SUBLKS_UUID)) + return 0; + + v = blkid_probe_assign_value(pr, "UUID"); + if (v) { + if (len == BLKID_PROBVAL_BUFSIZ) + len--; /* make a space for \0 */ + + memcpy((char *) v->data, str, len); + v->data[len] = '\0'; + v->len = len + 1; + return 0; + } + return -1; +} + +/* default _set_uuid function to set DCE UUIDs */ +int blkid_probe_set_uuid_as(blkid_probe pr, unsigned char *uuid, const char *name) +{ + struct blkid_chain *chn = blkid_probe_get_chain(pr); + struct blkid_prval *v; + + if (blkid_uuid_is_empty(uuid, 16)) + return 0; + + if (!name) { + if ((chn->flags & BLKID_SUBLKS_UUIDRAW) && + blkid_probe_set_value(pr, "UUID_RAW", uuid, 16) < 0) + return -1; + if (!(chn->flags & BLKID_SUBLKS_UUID)) + return 0; + + v = blkid_probe_assign_value(pr, "UUID"); + } else + v = blkid_probe_assign_value(pr, name); + + blkid_unparse_uuid(uuid, (char *) v->data, sizeof(v->data)); + v->len = 37; + + return 0; +} + +int blkid_probe_set_uuid(blkid_probe pr, unsigned char *uuid) +{ + return blkid_probe_set_uuid_as(pr, uuid, NULL); +} + +/** + * blkid_probe_set_request: + * @pr: probe + * @flags: BLKID_PROBREQ_* (deprecated) or BLKID_SUBLKS_* flags + * + * Returns: 0 on success, or -1 in case of error. + * + * Deprecated: Use blkid_probe_set_superblocks_flags(). + */ +int blkid_probe_set_request(blkid_probe pr, int flags) +{ + return blkid_probe_set_superblocks_flags(pr, flags); +} + +/** + * blkid_probe_reset_filter: + * @pr: prober + * + * Returns: 0 on success, or -1 in case of error. + * + * Deprecated: Use blkid_probe_reset_superblocks_filter(). + */ +int blkid_probe_reset_filter(blkid_probe pr) +{ + return __blkid_probe_reset_filter(pr, BLKID_CHAIN_SUBLKS); +} + +/** + * blkid_probe_invert_filter: + * @pr: prober + * + * Returns: 0 on success, or -1 in case of error. + * + * Deprecated: Use blkid_probe_invert_superblocks_filter(). + */ +int blkid_probe_invert_filter(blkid_probe pr) +{ + return __blkid_probe_invert_filter(pr, BLKID_CHAIN_SUBLKS); +} + +/** + * blkid_probe_filter_types + * @pr: prober + * @flag: filter BLKID_FLTR_{NOTIN,ONLYIN} flag + * @names: NULL terminated array of probing function names (e.g. "vfat"). + * + * Returns: 0 on success, or -1 in case of error. + * + * Deprecated: Use blkid_probe_filter_superblocks_types(). + */ +int blkid_probe_filter_types(blkid_probe pr, int flag, char *names[]) +{ + return __blkid_probe_filter_types(pr, BLKID_CHAIN_SUBLKS, flag, names); +} + +/** + * blkid_probe_filter_usage + * @pr: prober + * @flag: filter BLKID_FLTR_{NOTIN,ONLYIN} flag + * @usage: BLKID_USAGE_* flags + * + * Returns: 0 on success, or -1 in case of error. + * + * Deprecated: Use blkid_probe_filter_superblocks_usage(). + */ +int blkid_probe_filter_usage(blkid_probe pr, int flag, int usage) +{ + return blkid_probe_filter_superblocks_usage(pr, flag, usage); +} + + |