+ /* in fsname test mode, pool_pathname is NULL */
+ if (pool_pathname != NULL)
+ strcpy(pool_pathname, buffer);
+
+ return 0;
+}
+
+/**
+ * Get the list of pool members.
+ * \param poolname string of format \<fsname\>.\<poolname\>
+ * \param members caller-allocated array of char*
+ * \param list_size size of the members array
+ * \param buffer caller-allocated buffer for storing OST names
+ * \param buffer_size size of the buffer
+ *
+ * \return number of members retrieved for this pool
+ * \retval -error failure
+ */
+int llapi_get_poolmembers(const char *poolname, char **members,
+ int list_size, char *buffer, int buffer_size)
+{
+ char fsname[PATH_MAX + 1];
+ char *pool, *tmp;
+ char pathname[PATH_MAX + 1];
+ char path[PATH_MAX + 1];
+ char buf[1024];
+ FILE *fd;
+ int rc = 0;
+ int nb_entries = 0;
+ int used = 0;
+
+ /* name is FSNAME.POOLNAME */
+ if (strlen(poolname) > PATH_MAX)
+ return -EOVERFLOW;
+ strcpy(fsname, poolname);
+ pool = strchr(fsname, '.');
+ if (pool == NULL)
+ return -EINVAL;
+
+ *pool = '\0';
+ pool++;
+
+ rc = poolpath(fsname, NULL, pathname);
+ if (rc != 0) {
+ errno = -rc;
+ llapi_err(LLAPI_MSG_ERROR, "Lustre filesystem '%s' not found",
+ fsname);
+ return rc;
+ }
+
+ llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
+ sprintf(path, "%s/%s", pathname, pool);
+ if ((fd = fopen(path, "r")) == NULL) {
+ llapi_err(LLAPI_MSG_ERROR, "Cannot open %s", path);
+ return -EINVAL;
+ }
+
+ rc = 0;
+ while (fgets(buf, sizeof(buf), fd) != NULL) {
+ if (nb_entries >= list_size) {
+ rc = -EOVERFLOW;
+ break;
+ }
+ /* remove '\n' */
+ if ((tmp = strchr(buf, '\n')) != NULL)
+ *tmp='\0';
+ if (used + strlen(buf) + 1 > buffer_size) {
+ rc = -EOVERFLOW;
+ break;
+ }
+
+ strcpy(buffer + used, buf);
+ members[nb_entries] = buffer + used;
+ used += strlen(buf) + 1;
+ nb_entries++;
+ rc = nb_entries;
+ }
+
+ fclose(fd);
+ return rc;
+}
+
+/**
+ * Get the list of pools in a filesystem.
+ * \param name filesystem name or path
+ * \param poollist caller-allocated array of char*
+ * \param list_size size of the poollist array
+ * \param buffer caller-allocated buffer for storing pool names
+ * \param buffer_size size of the buffer
+ *
+ * \return number of pools retrieved for this filesystem
+ * \retval -error failure
+ */
+int llapi_get_poollist(const char *name, char **poollist, int list_size,
+ char *buffer, int buffer_size)
+{
+ char fsname[PATH_MAX + 1], rname[PATH_MAX + 1], pathname[PATH_MAX + 1];
+ char *ptr;
+ DIR *dir;
+ struct dirent pool;
+ struct dirent *cookie = NULL;
+ int rc = 0;
+ unsigned int nb_entries = 0;
+ unsigned int used = 0;
+ unsigned int i;
+
+ /* initilize output array */
+ for (i = 0; i < list_size; i++)
+ poollist[i] = NULL;
+
+ /* is name a pathname ? */
+ ptr = strchr(name, '/');
+ if (ptr != NULL) {
+ /* only absolute pathname is supported */
+ if (*name != '/')
+ return -EINVAL;
+ if (!realpath(name, rname)) {
+ rc = -errno;
+ llapi_err(LLAPI_MSG_ERROR, "invalid path '%s'", name);
+ return rc;
+ }
+
+ rc = poolpath(NULL, rname, pathname);
+ if (rc != 0) {
+ errno = -rc;
+ llapi_err(LLAPI_MSG_ERROR, "'%s' is not"
+ " a Lustre filesystem", name);
+ return rc;
+ }
+ strcpy(fsname, rname);
+ } else {
+ /* name is FSNAME */
+ strcpy(fsname, name);
+ rc = poolpath(fsname, NULL, pathname);
+ }
+ if (rc != 0) {
+ errno = -rc;
+ llapi_err(LLAPI_MSG_ERROR, "Lustre filesystem '%s' not found",
+ name);
+ return rc;
+ }
+
+ llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
+ if ((dir = opendir(pathname)) == NULL) {
+ llapi_err(LLAPI_MSG_ERROR, "Could not open pool list for '%s'",
+ name);
+ return -errno;
+ }
+
+ while(1) {
+ rc = readdir_r(dir, &pool, &cookie);
+
+ if (rc != 0) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "Error reading pool list for '%s'", name);
+ return -errno;
+ } else if ((rc == 0) && (cookie == NULL))
+ /* end of directory */
+ break;
+
+ /* ignore . and .. */
+ if (!strcmp(pool.d_name, ".") || !strcmp(pool.d_name, ".."))
+ continue;
+
+ /* check output bounds */
+ if (nb_entries >= list_size)
+ return -EOVERFLOW;
+
+ /* +2 for '.' and final '\0' */
+ if (used + strlen(pool.d_name) + strlen(fsname) + 2
+ > buffer_size)
+ return -EOVERFLOW;
+
+ sprintf(buffer + used, "%s.%s", fsname, pool.d_name);
+ poollist[nb_entries] = buffer + used;
+ used += strlen(pool.d_name) + strlen(fsname) + 2;
+ nb_entries++;
+ }
+
+ closedir(dir);
+ return nb_entries;
+}
+
+/* wrapper for lfs.c and obd.c */
+int llapi_poollist(const char *name)
+{
+ /* list of pool names (assume that pool count is smaller
+ than OST count) */
+ char *list[FIND_MAX_OSTS];
+ char *buffer;
+ /* fsname-OST0000_UUID < 32 char, 1 per OST */
+ int bufsize = FIND_MAX_OSTS * 32;
+ int i, nb;
+
+ buffer = malloc(bufsize);
+ if (buffer == NULL)
+ return -ENOMEM;
+
+ if ((name[0] == '/') || (strchr(name, '.') == NULL))
+ /* name is a path or fsname */
+ nb = llapi_get_poollist(name, list, FIND_MAX_OSTS, buffer,
+ bufsize);
+ else
+ /* name is a pool name (<fsname>.<poolname>) */
+ nb = llapi_get_poolmembers(name, list, FIND_MAX_OSTS, buffer,
+ bufsize);
+
+ for (i = 0; i < nb; i++)
+ llapi_printf(LLAPI_MSG_NORMAL, "%s\n", list[i]);
+
+ free(buffer);
+ return (nb < 0 ? nb : 0);
+}
+
+
+typedef int (semantic_func_t)(char *path, DIR *parent, DIR *d,
+ void *data, cfs_dirent_t *de);
+
+#define MAX_LOV_UUID_COUNT max(LOV_MAX_STRIPE_COUNT, 1000)
+#define OBD_NOT_FOUND (-1)
+
+static int common_param_init(struct find_param *param)
+{
+ param->lumlen = lov_mds_md_size(MAX_LOV_UUID_COUNT, LOV_MAGIC_V3);
+ if ((param->lmd = malloc(sizeof(lstat_t) + param->lumlen)) == NULL) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: allocation of %d bytes for ioctl",
+ sizeof(lstat_t) + param->lumlen);
+ return -ENOMEM;
+ }
+
+ param->got_uuids = 0;
+ param->obdindexes = NULL;
+ param->obdindex = OBD_NOT_FOUND;
+ return 0;
+}
+
+static void find_param_fini(struct find_param *param)
+{
+ if (param->obdindexes)
+ free(param->obdindexes);
+
+ if (param->lmd)
+ free(param->lmd);
+}
+
+static int cb_common_fini(char *path, DIR *parent, DIR *d, void *data,
+ cfs_dirent_t *de)
+{
+ struct find_param *param = (struct find_param *)data;
+ param->depth--;
+ return 0;
+}
+
+static DIR *opendir_parent(char *path)
+{
+ DIR *parent;
+ char *fname;
+ char c;
+
+ fname = strrchr(path, '/');
+ if (fname == NULL)
+ return opendir(".");
+
+ c = fname[1];
+ fname[1] = '\0';
+ parent = opendir(path);
+ fname[1] = c;
+ return parent;
+}
+
+int llapi_mds_getfileinfo(char *path, DIR *parent,
+ struct lov_user_mds_data *lmd)
+{
+ lstat_t *st = &lmd->lmd_st;
+ char *fname = strrchr(path, '/');
+ int ret = 0;
+
+ if (parent == NULL)
+ return -EINVAL;
+
+ fname = (fname == NULL ? path : fname + 1);
+ /* retrieve needed file info */
+ strncpy((char *)lmd, fname,
+ lov_mds_md_size(MAX_LOV_UUID_COUNT, LOV_MAGIC));
+ ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO, (void *)lmd);
+
+ if (ret) {
+ if (errno == ENOTTY) {
+ /* ioctl is not supported, it is not a lustre fs.
+ * Do the regular lstat(2) instead. */
+ ret = lstat_f(path, st);
+ if (ret) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: lstat failed for %s",
+ __func__, path);
+ return ret;
+ }
+ } else if (errno == ENOENT) {
+ llapi_err(LLAPI_MSG_WARN,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ return -ENOENT;
+ } else {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: IOC_MDC_GETFILEINFO failed for %s",
+ __func__, path);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int llapi_semantic_traverse(char *path, int size, DIR *parent,
+ semantic_func_t sem_init,
+ semantic_func_t sem_fini, void *data,
+ cfs_dirent_t *de)
+{
+ cfs_dirent_t *dent;
+ int len, ret;
+ DIR *d, *p = NULL;
+
+ ret = 0;
+ len = strlen(path);
+
+ d = opendir(path);
+ if (!d && errno != ENOTDIR) {
+ llapi_err(LLAPI_MSG_ERROR, "%s: Failed to open '%s'",
+ __func__, path);
+ return -EINVAL;
+ } else if (!d && !parent) {
+ /* ENOTDIR. Open the parent dir. */
+ p = opendir_parent(path);
+ if (!p)
+ GOTO(out, ret = -EINVAL);
+ }
+
+ if (sem_init && (ret = sem_init(path, parent ?: p, d, data, de)))
+ goto err;
+
+ if (!d)
+ GOTO(out, ret = 0);
+
+ while ((dent = readdir64(d)) != NULL) {
+ ((struct find_param *)data)->have_fileinfo = 0;
+
+ if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
+ continue;
+
+ /* Don't traverse .lustre directory */
+ if (!(strcmp(dent->d_name, dot_lustre_name)))
+ continue;
+
+ path[len] = 0;
+ if ((len + dent->d_reclen + 2) > size) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: string buffer is too small",
+ __func__);
+ break;
+ }
+ strcat(path, "/");
+ strcat(path, dent->d_name);
+
+ if (dent->d_type == DT_UNKNOWN) {
+ lstat_t *st = &((struct find_param *)data)->lmd->lmd_st;
+
+ ret = llapi_mds_getfileinfo(path, d,
+ ((struct find_param *)data)->lmd);
+ if (ret == 0) {
+ ((struct find_param *)data)->have_fileinfo = 1;
+ dent->d_type =
+ llapi_filetype_dir_table[st->st_mode &
+ S_IFMT];
+ }
+ if (ret == -ENOENT)
+ continue;
+ }
+
+ switch (dent->d_type) {
+ case DT_UNKNOWN:
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: '%s' is UNKNOWN type %d",
+ __func__, dent->d_name, dent->d_type);
+ break;
+ case DT_DIR:
+ ret = llapi_semantic_traverse(path, size, d, sem_init,
+ sem_fini, data, dent);
+ if (ret < 0)
+ goto out;
+ break;
+ default:
+ ret = 0;
+ if (sem_init) {
+ ret = sem_init(path, d, NULL, data, dent);
+ if (ret < 0)
+ goto out;
+ }
+ if (sem_fini && ret == 0)
+ sem_fini(path, d, NULL, data, dent);
+ }
+ }
+
+out:
+ path[len] = 0;
+
+ if (sem_fini)
+ sem_fini(path, parent, d, data, de);
+err:
+ if (d)
+ closedir(d);
+ if (p)
+ closedir(p);
+ return ret;
+}
+
+static int param_callback(char *path, semantic_func_t sem_init,
+ semantic_func_t sem_fini, struct find_param *param)
+{
+ int ret, len = strlen(path);
+ char *buf;
+
+ if (len > PATH_MAX) {
+ llapi_err(LLAPI_MSG_ERROR, "Path name '%s' is too long", path);
+ return -EINVAL;
+ }
+
+ buf = (char *)malloc(PATH_MAX + 1);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = common_param_init(param);
+ if (ret)
+ goto out;
+ param->depth = 0;
+
+ strncpy(buf, path, PATH_MAX + 1);
+ ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, sem_init,
+ sem_fini, param, NULL);
+out:
+ find_param_fini(param);
+ free(buf);
+ return ret < 0 ? ret : 0;
+}
+
+int llapi_file_fget_lov_uuid(int fd, struct obd_uuid *lov_name)
+{
+ int rc = ioctl(fd, OBD_IOC_GETNAME, lov_name);
+ if (rc) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error: can't get lov name.");
+ }
+ return rc;
+}
+
+int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
+{
+ int fd, rc;
+
+ fd = open(path, O_RDONLY);
+ if (fd < 0) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error opening %s", path);
+ return rc;
+ }
+
+ rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
+
+ close(fd);
+
+ return rc;
+}
+
+/*
+ * If uuidp is NULL, return the number of available obd uuids.
+ * If uuidp is non-NULL, then it will return the uuids of the obds. If
+ * there are more OSTs then allocated to uuidp, then an error is returned with
+ * the ost_count set to number of available obd uuids.
+ */
+int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
+{
+ struct obd_uuid lov_name;
+ char buf[1024];
+ FILE *fp;
+ int rc = 0, index = 0;
+
+ /* Get the lov name */
+ rc = llapi_file_fget_lov_uuid(fd, &lov_name);
+ if (rc)
+ return rc;
+
+ /* Now get the ost uuids from /proc */
+ snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
+ lov_name.uuid);
+ fp = fopen(buf, "r");
+ if (fp == NULL) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error: opening '%s'", buf);
+ return rc;
+ }
+
+ while (fgets(buf, sizeof(buf), fp) != NULL) {
+ if (uuidp && (index < *ost_count)) {
+ if (sscanf(buf, "%d: %s", &index, uuidp[index].uuid) <2)
+ break;
+ }
+ index++;
+ }
+
+ fclose(fp);
+
+ if (uuidp && (index >= *ost_count))
+ return -EOVERFLOW;
+
+ *ost_count = index;
+ return rc;
+}
+
+int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
+{
+ DIR *root;
+ int rc;
+
+ root = opendir(mnt);
+ if (!root) {
+ llapi_err(LLAPI_MSG_ERROR, "open %s failed", mnt);
+ return -1;
+ }
+
+ *count = is_mdt;
+ rc = ioctl(dirfd(root), LL_IOC_GETOBDCOUNT, count);
+
+ closedir(root);
+ return rc;
+}
+
+/* Check if user specified value matches a real uuid. Ignore _UUID,
+ * -osc-4ba41334, other trailing gunk in comparison.
+ * @param real_uuid ends in "_UUID"
+ * @param search_uuid may or may not end in "_UUID"
+ */
+int llapi_uuid_match(char *real_uuid, char *search_uuid)
+{
+ int cmplen = strlen(real_uuid);
+ int searchlen = strlen(search_uuid);
+
+ if (cmplen > 5 && strcmp(real_uuid + cmplen - 5, "_UUID") == 0)
+ cmplen -= 5;
+ if (searchlen > 5 && strcmp(search_uuid + searchlen - 5, "_UUID") == 0)
+ searchlen -= 5;
+
+ /* The UUIDs may legitimately be different lengths, if
+ * the system was upgraded from an older version. */
+ if (cmplen != searchlen)
+ return 0;
+
+ return (strncmp(search_uuid, real_uuid, cmplen) == 0);
+}
+
+/* Here, param->obduuid points to a single obduuid, the index of which is
+ * returned in param->obdindex */
+static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
+{
+ struct obd_uuid lov_uuid;
+ char uuid[sizeof(struct obd_uuid)];
+ char buf[1024];
+ FILE *fp;
+ int rc = 0, index;
+
+ if (param->got_uuids)
+ return rc;
+
+ /* Get the lov name */
+ rc = llapi_file_fget_lov_uuid(dirfd(dir), &lov_uuid);
+ if (rc) {
+ if (errno != ENOTTY) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: can't get lov name: %s", dname);
+ } else {
+ rc = 0;
+ }
+ return rc;
+ }
+
+ param->got_uuids = 1;
+
+ /* Now get the ost uuids from /proc */
+ snprintf(buf, sizeof(buf), "/proc/fs/lustre/lov/%s/target_obd",
+ lov_uuid.uuid);
+ fp = fopen(buf, "r");
+ if (fp == NULL) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error: opening '%s'", buf);
+ return rc;
+ }
+
+ if (!param->obduuid && !param->quiet && !param->obds_printed)
+ llapi_printf(LLAPI_MSG_NORMAL, "OBDS:\n");
+
+ while (fgets(buf, sizeof(buf), fp) != NULL) {
+ if (sscanf(buf, "%d: %s", &index, uuid) < 2)
+ break;
+
+ if (param->obduuid) {
+ if (llapi_uuid_match(uuid, param->obduuid->uuid)) {
+ param->obdindex = index;
+ break;
+ }
+ } else if (!param->quiet && !param->obds_printed) {
+ /* Print everything */
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", buf);
+ }
+ }
+ param->obds_printed = 1;
+
+ fclose(fp);
+
+ if (param->obduuid && (param->obdindex == OBD_NOT_FOUND)) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "error: %s: unknown obduuid: %s",
+ __func__, param->obduuid->uuid);
+ rc = -EINVAL;
+ }
+
+ return (rc);
+}
+
+/* In this case, param->obduuid will be an array of obduuids and
+ * obd index for all these obduuids will be returned in
+ * param->obdindexes */
+static int setup_obd_indexes(DIR *dir, struct find_param *param)
+{
+ struct obd_uuid *uuids = NULL;
+ int obdcount = INIT_ALLOC_NUM_OSTS;
+ int ret, obd_valid = 0, obdnum, i;
+
+ uuids = (struct obd_uuid *)malloc(INIT_ALLOC_NUM_OSTS *
+ sizeof(struct obd_uuid));
+ if (uuids == NULL)
+ return -ENOMEM;
+
+retry_get_uuids:
+ ret = llapi_lov_get_uuids(dirfd(dir), uuids,
+ &obdcount);
+ if (ret) {
+ struct obd_uuid *uuids_temp;
+
+ if (ret == -EOVERFLOW) {
+ uuids_temp = realloc(uuids, obdcount *
+ sizeof(struct obd_uuid));
+ if (uuids_temp != NULL)
+ goto retry_get_uuids;
+ else
+ ret = -ENOMEM;
+ }
+
+ llapi_err(LLAPI_MSG_ERROR, "get ost uuid failed");
+ return ret;
+ }
+
+ param->obdindexes = malloc(param->num_obds * sizeof(param->obdindex));
+ if (param->obdindexes == NULL)
+ return -ENOMEM;
+
+ for (obdnum = 0; obdnum < param->num_obds; obdnum++) {
+ for (i = 0; i < obdcount; i++) {
+ if (llapi_uuid_match(uuids[i].uuid,
+ param->obduuid[obdnum].uuid)) {
+ param->obdindexes[obdnum] = i;
+ obd_valid++;
+ break;
+ }
+ }
+ if (i >= obdcount) {
+ param->obdindexes[obdnum] = OBD_NOT_FOUND;
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "error: %s: unknown obduuid: %s",
+ __func__,
+ param->obduuid[obdnum].uuid);
+ ret = -EINVAL;
+ }
+ }
+
+ if (obd_valid == 0)
+ param->obdindex = OBD_NOT_FOUND;
+ else
+ param->obdindex = obd_valid;
+
+ param->got_uuids = 1;
+
+ return ret;
+}
+
+int llapi_ostlist(char *path, struct find_param *param)
+{
+ DIR *dir;
+ int ret;
+
+ dir = opendir(path);
+ if (dir == NULL)
+ return -errno;
+
+ ret = setup_obd_uuid(dir, path, param);
+ closedir(dir);
+
+ return ret;
+}
+
+static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
+ struct lov_user_ost_data_v1 *objects,
+ int is_dir, int verbose, int depth,
+ char *pool_name)
+{
+ char *prefix = is_dir ? "" : "lmm_";
+ char nl = is_dir ? ' ' : '\n';
+
+ if (is_dir && lum->lmm_object_seq == LOV_OBJECT_GROUP_DEFAULT) {
+ lum->lmm_object_seq = LOV_OBJECT_GROUP_CLEAR;
+ if (verbose & VERBOSE_DETAIL)
+ llapi_printf(LLAPI_MSG_NORMAL, "(Default) ");
+ }
+
+ if (depth && path && ((verbose != VERBOSE_OBJID) || !is_dir))
+ llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
+
+ if ((verbose & VERBOSE_DETAIL) && !is_dir) {
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_magic: 0x%08X\n",
+ lum->lmm_magic);
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_seq: "LPX64"\n",
+ lum->lmm_object_seq);
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_id: "LPX64"\n",
+ lum->lmm_object_id);
+ }
+
+ if (verbose & VERBOSE_COUNT) {
+ if (verbose & ~VERBOSE_COUNT)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_count: ",
+ prefix);
+ llapi_printf(LLAPI_MSG_NORMAL, "%hd%c",
+ (__s16)lum->lmm_stripe_count, nl);
+ }
+
+ if (verbose & VERBOSE_SIZE) {
+ if (verbose & ~VERBOSE_SIZE)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_size: ",
+ prefix);
+ llapi_printf(LLAPI_MSG_NORMAL, "%u%c", lum->lmm_stripe_size,
+ nl);
+ }
+
+ if ((verbose & VERBOSE_DETAIL) && !is_dir) {
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_stripe_pattern: %x%c",
+ lum->lmm_pattern, nl);
+ }
+
+ if (verbose & VERBOSE_OFFSET) {
+ if (verbose & ~VERBOSE_OFFSET)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ",
+ prefix);
+ if (is_dir)
+ llapi_printf(LLAPI_MSG_NORMAL, "%d%c",
+ lum->lmm_stripe_offset ==
+ (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
+ lum->lmm_stripe_offset, nl);
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
+ objects[0].l_ost_idx, nl);
+ }
+
+ if ((verbose & VERBOSE_POOL) && (pool_name != NULL)) {
+ llapi_printf(LLAPI_MSG_NORMAL, "pool: %s", pool_name);
+ is_dir = 1;
+ }
+
+ if (is_dir && (verbose != VERBOSE_OBJID))
+ llapi_printf(LLAPI_MSG_NORMAL, "\n");
+}
+
+void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
+ struct lov_user_ost_data_v1 *objects,
+ char *path, int is_dir,
+ int obdindex, int depth, int header)
+{
+ int i, obdstripe = (obdindex != OBD_NOT_FOUND) ? 0 : 1;
+
+ if (!obdstripe) {
+ for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
+ if (obdindex == objects[i].l_ost_idx) {
+ obdstripe = 1;
+ break;
+ }
+ }
+ }
+
+ if (obdstripe == 1)
+ lov_dump_user_lmm_header(lum, path, objects, is_dir, header, depth,
+ pool_name);
+
+ if (!is_dir && (header & VERBOSE_OBJID)) {
+ if (obdstripe == 1)
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "\tobdidx\t\t objid\t\tobjid\t\t group\n");
+
+ for (i = 0; i < lum->lmm_stripe_count; i++) {
+ int idx = objects[i].l_ost_idx;
+ long long oid = objects[i].l_object_id;
+ long long gr = objects[i].l_object_seq;
+ if ((obdindex == OBD_NOT_FOUND) || (obdindex == idx))
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "\t%6u\t%14llu\t%#13llx\t%14llu%s\n",
+ idx, oid, oid, gr,
+ obdindex == idx ? " *" : "");
+ }
+ llapi_printf(LLAPI_MSG_NORMAL, "\n");
+ }
+}
+
+void llapi_lov_dump_user_lmm(struct find_param *param,
+ char *path, int is_dir)
+{
+ switch(*(__u32 *)¶m->lmd->lmd_lmm) { /* lum->lmm_magic */
+ case LOV_USER_MAGIC_V1:
+ lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, NULL,
+ param->lmd->lmd_lmm.lmm_objects,
+ path, is_dir,
+ param->obdindex, param->maxdepth,
+ param->verbose);
+ break;
+ case LOV_USER_MAGIC_V3: {
+ char pool_name[LOV_MAXPOOLNAME + 1];
+ struct lov_user_ost_data_v1 *objects;
+ struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
+
+ strncpy(pool_name, lmmv3->lmm_pool_name, LOV_MAXPOOLNAME);
+ pool_name[LOV_MAXPOOLNAME] = '\0';
+ objects = lmmv3->lmm_objects;
+ lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, pool_name,
+ objects, path, is_dir,
+ param->obdindex, param->maxdepth,
+ param->verbose);
+ break;
+ }
+ default:
+ llapi_printf(LLAPI_MSG_NORMAL, "unknown lmm_magic: %#x "
+ "(expecting one of %#x %#x %#x)\n",
+ *(__u32 *)¶m->lmd->lmd_lmm,
+ LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3);
+ return;
+ }
+}
+
+int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
+{
+ const char *fname;
+ char *dname;
+ int fd, rc = 0;
+
+ fname = strrchr(path, '/');
+
+ /* It should be a file (or other non-directory) */
+ if (fname == NULL) {
+ dname = (char *)malloc(2);
+ if (dname == NULL)
+ return ENOMEM;
+ strcpy(dname, ".");
+ fname = (char *)path;
+ } else {
+ dname = (char *)malloc(fname - path + 1);
+ if (dname == NULL)
+ return ENOMEM;
+ strncpy(dname, path, fname - path);
+ dname[fname - path] = '\0';
+ fname++;
+ }
+
+ if ((fd = open(dname, O_RDONLY)) == -1) {
+ rc = errno;
+ free(dname);
+ return rc;
+ }
+
+ strcpy((char *)lum, fname);
+ if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
+ rc = errno;
+
+ if (close(fd) == -1 && rc == 0)
+ rc = errno;
+
+ free(dname);
+
+ return rc;
+}
+
+int llapi_file_lookup(int dirfd, const char *name)
+{
+ struct obd_ioctl_data data = { 0 };
+ char rawbuf[8192];
+ char *buf = rawbuf;
+ int rc;
+
+ if (dirfd < 0 || name == NULL)
+ return -EINVAL;
+
+ data.ioc_version = OBD_IOCTL_VERSION;
+ data.ioc_len = sizeof(data);
+ data.ioc_inlbuf1 = (char *)name;
+ data.ioc_inllen1 = strlen(name) + 1;
+
+ rc = obd_ioctl_pack(&data, &buf, sizeof(rawbuf));
+ if (rc) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: IOC_MDC_LOOKUP pack failed for '%s': rc %d",
+ name, rc);
+ return rc;
+ }
+
+ return ioctl(dirfd, IOC_MDC_LOOKUP, buf);
+}
+
+/* Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
+ * @mds indicates if this is MDS timestamps and there are attributes on OSTs.
+ *
+ * The result is -1 if it does not match, 0 if not yet clear, 1 if matches.
+ * The table below gives the answers for the specified parameters (value and
+ * sign), 1st column is the answer for the MDS value, the 2nd is for the OST:
+ * --------------------------------------
+ * 1 | file > limit; sign > 0 | -1 / -1 |
+ * 2 | file = limit; sign > 0 | ? / 1 |
+ * 3 | file < limit; sign > 0 | ? / 1 |
+ * 4 | file > limit; sign = 0 | -1 / -1 |
+ * 5 | file = limit; sign = 0 | ? / 1 | <- (see the Note below)
+ * 6 | file < limit; sign = 0 | ? / -1 |
+ * 7 | file > limit; sign < 0 | 1 / 1 |
+ * 8 | file = limit; sign < 0 | ? / -1 |
+ * 9 | file < limit; sign < 0 | ? / -1 |
+ * --------------------------------------
+ * Note: 5th actually means that the value is within the interval
+ * (limit - margin, limit]. */
+static int find_value_cmp(unsigned int file, unsigned int limit, int sign,
+ int negopt, unsigned long long margin, int mds)
+{
+ int ret = -1;
+
+ if (sign > 0) {
+ if (file <= limit)
+ ret = mds ? 0 : 1;
+ } else if (sign == 0) {
+ if (file <= limit && file + margin >= limit)
+ ret = mds ? 0 : 1;
+ else if (file + margin <= limit)
+ ret = mds ? 0 : -1;
+ } else if (sign < 0) {
+ if (file >= limit)
+ ret = 1;
+ else if (mds)
+ ret = 0;
+ }
+
+ return negopt ? ~ret + 1 : ret;
+}
+
+/* Check if the file time matches all the given criteria (e.g. --atime +/-N).
+ * Return -1 or 1 if file timestamp does not or does match the given criteria
+ * correspondingly. Return 0 if the MDS time is being checked and there are
+ * attributes on OSTs and it is not yet clear if the timespamp matches.
+ *
+ * If 0 is returned, we need to do another RPC to the OSTs to obtain the
+ * updated timestamps. */
+static int find_time_check(lstat_t *st, struct find_param *param, int mds)
+{
+ int ret;
+ int rc = 0;
+
+ /* Check if file is accepted. */
+ if (param->atime) {
+ ret = find_value_cmp(st->st_atime, param->atime,
+ param->asign, param->exclude_atime,
+ 24 * 60 * 60, mds);
+ if (ret < 0)
+ return ret;
+ rc = ret;
+ }
+
+ if (param->mtime) {
+ ret = find_value_cmp(st->st_mtime, param->mtime,
+ param->msign, param->exclude_mtime,
+ 24 * 60 * 60, mds);
+ if (ret < 0)
+ return ret;
+
+ /* If the previous check matches, but this one is not yet clear,
+ * we should return 0 to do an RPC on OSTs. */
+ if (rc == 1)
+ rc = ret;
+ }
+
+ if (param->ctime) {
+ ret = find_value_cmp(st->st_ctime, param->ctime,
+ param->csign, param->exclude_ctime,
+ 24 * 60 * 60, mds);
+ if (ret < 0)
+ return ret;
+
+ /* If the previous check matches, but this one is not yet clear,
+ * we should return 0 to do an RPC on OSTs. */
+ if (rc == 1)
+ rc = ret;
+ }
+
+ return rc;
+}
+
+static int cb_find_init(char *path, DIR *parent, DIR *dir,
+ void *data, cfs_dirent_t *de)
+{
+ struct find_param *param = (struct find_param *)data;
+ int decision = 1; /* 1 is accepted; -1 is rejected. */
+ lstat_t *st = ¶m->lmd->lmd_st;
+ int lustre_fs = 1;
+ int checked_type = 0;
+ int ret = 0;
+
+ LASSERT(parent != NULL || dir != NULL);
+
+ param->lmd->lmd_lmm.lmm_stripe_count = 0;
+
+ /* If a regular expression is presented, make the initial decision */
+ if (param->pattern != NULL) {
+ char *fname = strrchr(path, '/');
+ fname = (fname == NULL ? path : fname + 1);
+ ret = fnmatch(param->pattern, fname, 0);
+ if ((ret == FNM_NOMATCH && !param->exclude_pattern) ||
+ (ret == 0 && param->exclude_pattern))
+ goto decided;
+ }
+
+ /* See if we can check the file type from the dirent. */
+ if (param->type && de != NULL && de->d_type != DT_UNKNOWN &&
+ de->d_type < DT_MAX) {
+ checked_type = 1;
+ if (llapi_dir_filetype_table[de->d_type] == param->type) {
+ if (param->exclude_type)
+ goto decided;
+ } else {
+ if (!param->exclude_type)
+ goto decided;
+ }
+ }
+
+
+ /* If a time or OST should be checked, the decision is not taken yet. */
+ if (param->atime || param->ctime || param->mtime || param->obduuid ||
+ param->check_size)
+ decision = 0;
+
+ ret = 0;
+ /* Request MDS for the stat info. */
+ if (param->have_fileinfo == 0) {
+ if (dir) {
+ /* retrieve needed file info */
+ ret = ioctl(dirfd(dir), LL_IOC_MDC_GETINFO,
+ (void *)param->lmd);
+ } else {
+ char *fname = strrchr(path, '/');
+ fname = (fname == NULL ? path : fname + 1);
+
+ /* retrieve needed file info */
+ strncpy((char *)param->lmd, fname, param->lumlen);
+ ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO,
+ (void *)param->lmd);
+ }
+ }
+
+ if (ret) {
+ if (errno == ENOTTY) {
+ /* ioctl is not supported, it is not a lustre fs.
+ * Do the regular lstat(2) instead. */
+ lustre_fs = 0;
+ ret = lstat_f(path, st);
+ if (ret) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: lstat failed for %s",
+ __func__, path);
+ return ret;
+ }
+ } else if (errno == ENOENT) {
+ llapi_err(LLAPI_MSG_WARN,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ goto decided;
+ } else {
+ llapi_err(LLAPI_MSG_ERROR,"error: %s: %s failed for %s",
+ __func__, dir ? "LL_IOC_MDC_GETINFO" :
+ "IOC_MDC_GETFILEINFO", path);
+ return ret;
+ }
+ }
+
+ if (param->type && !checked_type) {
+ if ((st->st_mode & S_IFMT) == param->type) {
+ if (param->exclude_type)
+ goto decided;
+ } else {
+ if (!param->exclude_type)
+ goto decided;
+ }
+ }
+
+ /* Prepare odb. */
+ if (param->obduuid) {
+ if (lustre_fs && param->got_uuids &&
+ param->st_dev != st->st_dev) {
+ /* A lustre/lustre mount point is crossed. */
+ param->got_uuids = 0;
+ param->obds_printed = 0;
+ param->obdindex = OBD_NOT_FOUND;
+ }
+
+ if (lustre_fs && !param->got_uuids) {
+ ret = setup_obd_indexes(dir ? dir : parent, param);
+ if (ret)
+ return ret;
+
+ param->st_dev = st->st_dev;
+ } else if (!lustre_fs && param->got_uuids) {
+ /* A lustre/non-lustre mount point is crossed. */
+ param->got_uuids = 0;
+ param->obdindex = OBD_NOT_FOUND;
+ }
+ }
+
+ /* If an OBD UUID is specified but no one matches, skip this file. */
+ if (param->obduuid && param->obdindex == OBD_NOT_FOUND)
+ goto decided;
+
+ /* If a OST UUID is given, and some OST matches, check it here. */
+ if (param->obdindex != OBD_NOT_FOUND) {
+ if (!S_ISREG(st->st_mode))
+ goto decided;
+
+ /* Only those files should be accepted, which have a
+ * stripe on the specified OST. */
+ if (!param->lmd->lmd_lmm.lmm_stripe_count) {
+ goto decided;
+ } else {
+ int i, j;
+ struct lov_user_ost_data_v1 *lmm_objects;
+
+ if (param->lmd->lmd_lmm.lmm_magic ==
+ LOV_USER_MAGIC_V3) {
+ struct lov_user_md_v3 *lmmv3 =
+ (void *)¶m->lmd->lmd_lmm;
+
+ lmm_objects = lmmv3->lmm_objects;
+ } else {
+ lmm_objects = param->lmd->lmd_lmm.lmm_objects;
+ }
+
+ for (i = 0;
+ i < param->lmd->lmd_lmm.lmm_stripe_count; i++) {
+ for (j = 0; j < param->num_obds; j++) {
+ if (param->obdindexes[j] ==
+ lmm_objects[i].l_ost_idx) {
+ if (param->exclude_obd)
+ goto decided;
+ goto obd_matches;
+ }
+ }
+ }
+
+ if (i == param->lmd->lmd_lmm.lmm_stripe_count) {
+ if (param->exclude_obd)
+ goto obd_matches;
+ goto decided;
+ }
+ }
+ }
+
+ if (param->check_uid) {
+ if (st->st_uid == param->uid) {
+ if (param->exclude_uid)
+ goto decided;
+ } else {
+ if (!param->exclude_uid)
+ goto decided;
+ }
+ }
+
+ if (param->check_gid) {
+ if (st->st_gid == param->gid) {
+ if (param->exclude_gid)
+ goto decided;
+ } else {
+ if (!param->exclude_gid)
+ goto decided;
+ }
+ }
+
+ if (param->check_pool) {
+ struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
+
+ /* empty requested pool is taken as no pool search => V1 */
+ if (((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) &&
+ (param->poolname[0] == '\0')) ||
+ ((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
+ (strncmp(lmmv3->lmm_pool_name,
+ param->poolname, LOV_MAXPOOLNAME) == 0)) ||
+ ((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
+ (strcmp(param->poolname, "*") == 0))) {
+ if (param->exclude_pool)
+ goto decided;
+ } else {
+ if (!param->exclude_pool)
+ goto decided;
+ }
+ }
+
+ /* Check the time on mds. */
+ if (!decision) {
+ int for_mds;
+
+ for_mds = lustre_fs ? (S_ISREG(st->st_mode) &&
+ param->lmd->lmd_lmm.lmm_stripe_count)
+ : 0;
+ decision = find_time_check(st, param, for_mds);
+ }
+
+obd_matches:
+ /* If file still fits the request, ask ost for updated info.
+ The regular stat is almost of the same speed as some new
+ 'glimpse-size-ioctl'. */
+ if (!decision && S_ISREG(st->st_mode) &&
+ param->lmd->lmd_lmm.lmm_stripe_count &&
+ (param->check_size ||param->atime || param->mtime || param->ctime)) {
+ if (param->obdindex != OBD_NOT_FOUND) {
+ /* Check whether the obd is active or not, if it is
+ * not active, just print the object affected by this
+ * failed ost
+ * */
+ struct obd_statfs stat_buf;
+ struct obd_uuid uuid_buf;
+
+ memset(&stat_buf, 0, sizeof(struct obd_statfs));
+ memset(&uuid_buf, 0, sizeof(struct obd_uuid));
+ ret = llapi_obd_statfs(path, LL_STATFS_LOV,
+ param->obdindex, &stat_buf,
+ &uuid_buf);
+ if (ret) {
+ if (ret == -ENODATA || ret == -ENODEV
+ || ret == -EIO)
+ errno = EIO;
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "obd_uuid: %s failed %s ",
+ param->obduuid->uuid,
+ strerror(errno));
+ goto print_path;
+ }
+ }
+ if (dir) {
+ ret = ioctl(dirfd(dir), IOC_LOV_GETINFO,
+ (void *)param->lmd);
+ } else if (parent) {
+ ret = ioctl(dirfd(parent), IOC_LOV_GETINFO,
+ (void *)param->lmd);
+ }
+
+ if (ret) {
+ if (errno == ENOENT) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ goto decided;
+ } else {
+ llapi_err(LLAPI_MSG_ERROR,
+ "%s: IOC_LOV_GETINFO on %s failed",
+ __func__, path);
+ return ret;
+ }
+ }
+
+ /* Check the time on osc. */
+ decision = find_time_check(st, param, 0);
+ if (decision == -1)
+ goto decided;
+ }
+
+ if (param->check_size)
+ decision = find_value_cmp(st->st_size, param->size,
+ param->size_sign, param->exclude_size,
+ param->size_units, 0);
+
+print_path:
+ if (decision != -1) {
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
+ if (param->zeroend)
+ llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "\n");
+ }
+
+decided:
+ /* Do not get down anymore? */
+ if (param->depth == param->maxdepth)
+ return 1;
+
+ param->depth++;
+ return 0;
+}
+
+int llapi_find(char *path, struct find_param *param)
+{
+ return param_callback(path, cb_find_init, cb_common_fini, param);
+}
+
+/*
+ * Get MDT number that the file/directory inode referenced
+ * by the open fd resides on.
+ * Return 0 and mdtidx on success, or -ve errno.
+ */
+int llapi_file_fget_mdtidx(int fd, int *mdtidx)
+{
+ if (ioctl(fd, LL_IOC_GET_MDTIDX, &mdtidx) < 0)
+ return -errno;
+ return 0;
+}
+
+static int cb_get_mdt_index(char *path, DIR *parent, DIR *d, void *data,
+ cfs_dirent_t *de)
+{
+ struct find_param *param = (struct find_param *)data;
+ int ret = 0;
+ int mdtidx;
+
+ LASSERT(parent != NULL || d != NULL);
+
+ if (d) {
+ ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
+ } else if (parent) {
+ int fd;
+
+ fd = open(path, O_RDONLY);
+ if (fd > 0) {
+ ret = llapi_file_fget_mdtidx(fd, &mdtidx);
+ close(fd);
+ } else {
+ ret = fd;
+ }
+ }
+
+ if (ret) {
+ if (errno == ENODATA) {
+ if (!param->obduuid)
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "%s has no stripe info\n", path);
+ goto out;
+ } else if (errno == ENOTTY) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "%s: '%s' not on a Lustre fs?",
+ __func__, path);
+ } else if (errno == ENOENT) {
+ llapi_err(LLAPI_MSG_WARN,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ goto out;
+ } else {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: LL_IOC_GET_MDTIDX failed for %s",
+ __func__, path);
+ }
+ return ret;
+ }
+
+ if (param->quiet)
+ llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%s MDT index: %d\n",
+ path, mdtidx);
+
+out:
+ /* Do not get down anymore? */
+ if (param->depth == param->maxdepth)
+ return 1;
+
+ param->depth++;
+ return 0;
+}
+
+static int cb_getstripe(char *path, DIR *parent, DIR *d, void *data,
+ cfs_dirent_t *de)
+{
+ struct find_param *param = (struct find_param *)data;
+ int ret = 0;
+
+ LASSERT(parent != NULL || d != NULL);
+
+ if (param->obduuid) {
+ param->quiet = 1;
+ ret = setup_obd_uuid(d ? d : parent, path, param);
+ if (ret)
+ return ret;
+ }
+
+ if (d) {
+ ret = ioctl(dirfd(d), LL_IOC_LOV_GETSTRIPE,
+ (void *)¶m->lmd->lmd_lmm);
+ } else if (parent) {
+ char *fname = strrchr(path, '/');
+ fname = (fname == NULL ? path : fname + 1);
+
+ strncpy((char *)¶m->lmd->lmd_lmm, fname, param->lumlen);
+
+ ret = ioctl(dirfd(parent), IOC_MDC_GETFILESTRIPE,
+ (void *)¶m->lmd->lmd_lmm);
+ }
+
+ if (ret) {
+ if (errno == ENODATA) {
+ if (!param->obduuid)
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "%s has no stripe info\n", path);
+ goto out;
+ } else if (errno == ENOTTY) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "%s: '%s' not on a Lustre fs?",
+ __func__, path);
+ } else if (errno == ENOENT) {
+ llapi_err(LLAPI_MSG_WARN,
+ "warning: %s: %s does not exist",
+ __func__, path);
+ goto out;
+ } else {
+ llapi_err(LLAPI_MSG_ERROR,
+ "error: %s: %s failed for %s",
+ __func__, d ? "LL_IOC_LOV_GETSTRIPE" :
+ "IOC_MDC_GETFILESTRIPE", path);
+ }
+
+ return ret;
+ }
+
+ if (!param->get_mdt_index)
+ llapi_lov_dump_user_lmm(param, path, d ? 1 : 0);
+
+out:
+ /* Do not get down anymore? */
+ if (param->depth == param->maxdepth)
+ return 1;
+
+ param->depth++;
+ return 0;
+}
+
+int llapi_getstripe(char *path, struct find_param *param)
+{
+ return param_callback(path, param->get_mdt_index ?
+ cb_get_mdt_index : cb_getstripe,
+ cb_common_fini, param);
+}
+
+int llapi_obd_statfs(char *path, __u32 type, __u32 index,
+ struct obd_statfs *stat_buf,
+ struct obd_uuid *uuid_buf)
+{
+ int fd;
+ char raw[OBD_MAX_IOCTL_BUFFER] = {'\0'};
+ char *rawbuf = raw;
+ struct obd_ioctl_data data = { 0 };
+ int rc = 0;
+
+ data.ioc_inlbuf1 = (char *)&type;
+ data.ioc_inllen1 = sizeof(__u32);
+ data.ioc_inlbuf2 = (char *)&index;
+ data.ioc_inllen2 = sizeof(__u32);
+ data.ioc_pbuf1 = (char *)stat_buf;
+ data.ioc_plen1 = sizeof(struct obd_statfs);
+ data.ioc_pbuf2 = (char *)uuid_buf;
+ data.ioc_plen2 = sizeof(struct obd_uuid);
+
+ if ((rc = obd_ioctl_pack(&data, &rawbuf, sizeof(raw))) != 0) {
+ llapi_err(LLAPI_MSG_ERROR,
+ "llapi_obd_statfs: error packing ioctl data");
+ return rc;
+ }
+
+ fd = open(path, O_RDONLY);
+ if (errno == EISDIR)
+ fd = open(path, O_DIRECTORY | O_RDONLY);
+
+ if (fd < 0) {
+ rc = errno ? -errno : -EBADF;
+ llapi_err(LLAPI_MSG_ERROR, "error: %s: opening '%s'",
+ __func__, path);
+ return rc;
+ }
+ rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
+ if (rc)
+ rc = errno ? -errno : -EINVAL;
+
+ close(fd);
+ return rc;
+}
+
+#define MAX_STRING_SIZE 128
+#define DEVICES_LIST "/proc/fs/lustre/devices"
+
+int llapi_ping(char *obd_type, char *obd_name)
+{
+ char path[MAX_STRING_SIZE];
+ char buf[1];
+ int rc, fd;
+
+ snprintf(path, MAX_STRING_SIZE, "/proc/fs/lustre/%s/%s/ping",
+ obd_type, obd_name);
+
+ fd = open(path, O_WRONLY);
+ if (fd < 0) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error opening %s", path);
+ return rc;
+ }
+
+ rc = write(fd, buf, 1);
+ close(fd);
+
+ if (rc == 1)
+ return 0;
+ return rc;
+}
+
+int llapi_target_iterate(int type_num, char **obd_type,void *args,llapi_cb_t cb)
+{
+ char buf[MAX_STRING_SIZE];
+ FILE *fp = fopen(DEVICES_LIST, "r");
+ int i, rc = 0;
+
+ if (fp == NULL) {
+ rc = errno;
+ llapi_err(LLAPI_MSG_ERROR, "error: opening "DEVICES_LIST);
+ return rc;
+ }
+
+ while (fgets(buf, sizeof(buf), fp) != NULL) {
+ char *obd_type_name = NULL;
+ char *obd_name = NULL;
+ char *obd_uuid = NULL;
+ char *bufp = buf;
+ struct obd_ioctl_data datal = { 0, };
+ struct obd_statfs osfs_buffer;
+
+ while(bufp[0] == ' ')
+ ++bufp;
+
+ for(i = 0; i < 3; i++) {