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LU-12514 utils: add "lustre_tgt" filesystem type
[fs/lustre-release.git] / lustre / utils / liblustreapi.c
index 8f69ac6..9a29475 100644 (file)
@@ -69,6 +69,7 @@
 #endif
 #include <poll.h>
 #include <time.h>
+#include <inttypes.h>
 
 #include <libcfs/util/ioctl.h>
 #include <libcfs/util/param.h>
@@ -84,7 +85,16 @@ const char *liblustreapi_cmd;
 
 char *mdt_hash_name[] = { "none",
                          LMV_HASH_NAME_ALL_CHARS,
-                         LMV_HASH_NAME_FNV_1A_64 };
+                         LMV_HASH_NAME_FNV_1A_64,
+};
+
+struct lustre_foreign_type lu_foreign_types[] = {
+       {.lft_type = LU_FOREIGN_TYPE_NONE, .lft_name = "none"},
+       {.lft_type = LU_FOREIGN_TYPE_DAOS, .lft_name = "daos"},
+       /* must be the last element */
+       {.lft_type = LU_FOREIGN_TYPE_UNKNOWN, .lft_name = NULL}
+       /* array max dimension must be <= UINT32_MAX */
+};
 
 void llapi_msg_set_level(int level)
 {
@@ -290,8 +300,9 @@ int llapi_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, int max_len)
        data->ioc_version = OBD_IOCTL_VERSION;
 
        if (*pbuf != NULL && data->ioc_len > max_len) {
-               fprintf(stderr, "pbuf = %p, ioc_len = %u, max_len = %d\n",
-                       *pbuf, data->ioc_len, max_len);
+               llapi_error(LLAPI_MSG_ERROR, -EINVAL,
+                           "pbuf = %p, ioc_len = %u, max_len = %d\n",
+                           *pbuf, data->ioc_len, max_len);
                return -EINVAL;
        }
 
@@ -375,45 +386,52 @@ int llapi_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, int max_len)
 int llapi_stripe_limit_check(unsigned long long stripe_size, int stripe_offset,
                                int stripe_count, int stripe_pattern)
 {
-       int page_size, rc;
+       static int page_size;
+       int rc = 0;
 
-       /* 64 KB is the largest common page size I'm aware of (on ia64), but
-        * check the local page size just in case. */
-       page_size = LOV_MIN_STRIPE_SIZE;
-       if (getpagesize() > page_size) {
-               page_size = getpagesize();
-               llapi_err_noerrno(LLAPI_MSG_WARN,
-                               "warning: your page size (%u) is "
-                               "larger than expected (%u)", page_size,
-                               LOV_MIN_STRIPE_SIZE);
+       if (page_size == 0) {
+               /* 64 KB is the largest common page size (on ia64/PPC/ARM),
+                * but check the local page size just in case. The page_size
+                * will not change for the lifetime of this process at least.
+                */
+               page_size = LOV_MIN_STRIPE_SIZE;
+               if (getpagesize() > page_size) {
+                       page_size = getpagesize();
+                       llapi_err_noerrno(LLAPI_MSG_WARN,
+                                         "warning: page size (%u) larger than expected (%u)",
+                                         page_size, LOV_MIN_STRIPE_SIZE);
+               }
        }
        if (!llapi_stripe_size_is_aligned(stripe_size)) {
                rc = -EINVAL;
                llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe_size %llu, "
                                "must be an even multiple of %d bytes",
-                               stripe_size, page_size);
-               return rc;
+                               (unsigned long long)stripe_size, page_size);
+               goto out;
        }
        if (!llapi_stripe_index_is_valid(stripe_offset)) {
                rc = -EINVAL;
                llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
                                stripe_offset);
-               return rc;
+               goto out;
        }
        if (!llapi_stripe_count_is_valid(stripe_count)) {
                rc = -EINVAL;
                llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe count %d",
                                stripe_count);
-               return rc;
+               goto out;
        }
        if (llapi_stripe_size_is_too_big(stripe_size)) {
                rc = -EINVAL;
                llapi_error(LLAPI_MSG_ERROR, rc,
-                               "warning: stripe size 4G or larger "
-                               "is not currently supported and would wrap");
-               return rc;
+                           "error: stripe size '%llu' over 4GB limit",
+                           (unsigned long long)stripe_size);
+               goto out;
        }
-       return 0;
+
+out:
+       errno = -rc;
+       return rc;
 }
 
 int llapi_dir_stripe_limit_check(int stripe_offset, int stripe_count,
@@ -521,87 +539,6 @@ int llapi_get_agent_uuid(char *path, char *buf, size_t bufsize)
        return get_param_lmv(path, "uuid", buf, bufsize);
 }
 
-/*
- * if pool is NULL, search tgtname in target_obd
- * if pool is not NULL:
- *  if pool not found returns errno < 0
- *  if tgtname is NULL, returns 1 if pool is not empty and 0 if pool empty
- *  if tgtname is not NULL, returns 1 if OST is in pool and 0 if not
- */
-int llapi_search_tgt(char *fsname, char *poolname, char *tgtname, bool is_mdt)
-{
-       char buffer[PATH_MAX];
-       size_t len = 0;
-       glob_t param;
-       FILE *fd;
-       int rc;
-
-       /* You need one or the other */
-       if (poolname == NULL && fsname == NULL)
-               return -EINVAL;
-
-       if (tgtname != NULL)
-               len = strlen(tgtname);
-
-       if (poolname == NULL && len == 0)
-               return -EINVAL;
-
-       /* Search by poolname and fsname if is not NULL */
-       if (poolname != NULL) {
-               rc = poolpath(&param, fsname, NULL);
-               if (rc == 0) {
-                       snprintf(buffer, sizeof(buffer), "%s/%s",
-                                param.gl_pathv[0], poolname);
-               }
-       } else if (fsname != NULL) {
-               rc = get_lustre_param_path(is_mdt ? "lmv" : "lov", fsname,
-                                          FILTER_BY_FS_NAME,
-                                          "target_obd", &param);
-               if (rc == 0) {
-                       strncpy(buffer, param.gl_pathv[0],
-                               sizeof(buffer));
-               }
-       } else {
-               return -EINVAL;
-       }
-       cfs_free_param_data(&param);
-       if (rc)
-               return rc;
-
-       fd = fopen(buffer, "r");
-       if (fd == NULL)
-               return -errno;
-
-       while (fgets(buffer, sizeof(buffer), fd) != NULL) {
-               if (poolname == NULL) {
-                       char *ptr;
-                       /* Search for an tgtname in the list of targets
-                        * Line format is IDX: fsname-OST/MDTxxxx_UUID STATUS */
-                       ptr = strchr(buffer, ' ');
-                       if ((ptr != NULL) &&
-                           (strncmp(ptr + 1, tgtname, len) == 0)) {
-                               fclose(fd);
-                               return 1;
-                       }
-               } else {
-                       /* Search for an tgtname in a pool,
-                        * (or an existing non-empty pool if no tgtname) */
-                       if ((tgtname == NULL) ||
-                           (strncmp(buffer, tgtname, len) == 0)) {
-                               fclose(fd);
-                               return 1;
-                       }
-               }
-       }
-       fclose(fd);
-       return 0;
-}
-
-int llapi_search_ost(char *fsname, char *poolname, char *ostname)
-{
-       return llapi_search_tgt(fsname, poolname, ostname, false);
-}
-
 /**
  * Open a Lustre file.
  *
@@ -671,7 +608,7 @@ int llapi_file_open_param(const char *name, int flags, mode_t mode,
 
        /* sanity check of target list */
        if (param->lsp_is_specific) {
-               char ostname[MAX_OBD_NAME + 1];
+               char ostname[MAX_OBD_NAME + 64];
                bool found = false;
                int i;
 
@@ -797,6 +734,80 @@ int llapi_file_open(const char *name, int flags, int mode,
                                     stripe_pattern, NULL);
 }
 
+int llapi_file_create_foreign(const char *name, mode_t mode, __u32 type,
+                             __u32 flags, char *foreign_lov)
+{
+       size_t len;
+       struct lov_foreign_md *lfm;
+       int fd, rc;
+
+       if (foreign_lov == NULL) {
+               rc = -EINVAL;
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "foreign LOV EA content must be provided");
+               goto out_err;
+       }
+
+       len = strlen(foreign_lov);
+       if (len > XATTR_SIZE_MAX - offsetof(struct lov_foreign_md, lfm_value) ||
+           len <= 0) {
+               rc = -EINVAL;
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "foreign LOV EA size %zu (must be 0 < len < %zu)",
+                           len, XATTR_SIZE_MAX -
+                           offsetof(struct lov_foreign_md, lfm_value));
+               goto out_err;
+       }
+
+       lfm = malloc(len + offsetof(struct lov_foreign_md, lfm_value));
+       if (lfm == NULL) {
+               rc = -ENOMEM;
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "failed to allocate lov_foreign_md");
+               goto out_err;
+       }
+
+       fd = open(name, O_WRONLY|O_CREAT|O_LOV_DELAY_CREATE, mode);
+       if (fd == -1) {
+               fd = -errno;
+               llapi_error(LLAPI_MSG_ERROR, fd, "open '%s' failed", name);
+               goto out_free;
+       }
+
+       lfm->lfm_magic = LOV_USER_MAGIC_FOREIGN;
+       lfm->lfm_length = len;
+       lfm->lfm_type = type;
+       lfm->lfm_flags = flags;
+       memcpy(lfm->lfm_value, foreign_lov, len);
+
+       if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lfm) != 0) {
+               char *errmsg = "stripe already set";
+
+               rc = -errno;
+               if (errno == ENOTTY)
+                       errmsg = "not on a Lustre filesystem";
+               else if (errno == EEXIST || errno == EALREADY)
+                       errmsg = "stripe already set";
+               else
+                       errmsg = strerror(errno);
+
+               llapi_err_noerrno(LLAPI_MSG_ERROR,
+                                 "setstripe error for '%s': %s", name, errmsg);
+
+               close(fd);
+               fd = rc;
+       }
+
+out_free:
+       free(lfm);
+
+       return fd;
+
+out_err:
+       errno = -rc;
+       return rc;
+}
+
 int llapi_file_create(const char *name, unsigned long long stripe_size,
                       int stripe_offset, int stripe_count, int stripe_pattern)
 {
@@ -882,7 +893,7 @@ static int verify_dir_param(const char *name,
 
        /* sanity check of target list */
        if (param->lsp_is_specific) {
-               char mdtname[MAX_OBD_NAME + 1];
+               char mdtname[MAX_OBD_NAME + 64];
                bool found = false;
                int i;
 
@@ -1082,6 +1093,106 @@ out:
        return rc;
 }
 
+/**
+ * Create a foreign directory.
+ *
+ * \param name     the name of the directory to be created
+ * \param mode     permission of the file if it is created, see mode in open(2)
+ * \param type     foreign type to be set in LMV EA
+ * \param flags    foreign flags to be set in LMV EA
+ * \param value    foreign pattern to be set in LMV EA
+ *
+ * \retval         0 on success
+ * \retval         negative errno on failure
+ */
+int llapi_dir_create_foreign(const char *name, mode_t mode, __u32 type,
+                            __u32 flags, const char *value)
+{
+       struct lmv_foreign_md *lfm = NULL;
+       size_t lfm_size, len;
+       struct obd_ioctl_data data = { 0 };
+       char rawbuf[8192];
+       char *buf = rawbuf;
+       char *dirpath = NULL;
+       char *namepath = NULL;
+       char *dir;
+       char *filename;
+       int fd, rc;
+
+       len = strlen(value);
+       if (len > XATTR_SIZE_MAX - offsetof(struct lmv_foreign_md, lfm_value) ||
+           len <= 0) {
+               rc = -EINVAL;
+               llapi_error(LLAPI_MSG_ERROR, rc, "invalid LOV EA length %zu "
+                       "(must be 0 < len < %zu)\n", len,
+                       XATTR_SIZE_MAX -
+                       offsetof(struct lmv_foreign_md, lfm_value));
+               return rc;
+       }
+       lfm_size = len + offsetof(struct lmv_foreign_md, lfm_value);
+       lfm = calloc(1, lfm_size);
+       if (lfm == NULL)
+               return -ENOMEM;
+
+       dirpath = strdup(name);
+       if (!dirpath) {
+               free(lfm);
+               return -ENOMEM;
+       }
+
+       namepath = strdup(name);
+       if (!namepath) {
+               free(dirpath);
+               free(lfm);
+               return -ENOMEM;
+       }
+
+       lfm->lfm_magic = LMV_MAGIC_FOREIGN;
+       lfm->lfm_length = len;
+       lfm->lfm_type = type;
+       lfm->lfm_flags = flags;
+       memcpy(lfm->lfm_value, value, len);
+
+       filename = basename(namepath);
+       dir = dirname(dirpath);
+
+       data.ioc_inlbuf1 = (char *)filename;
+       data.ioc_inllen1 = strlen(filename) + 1;
+       data.ioc_inlbuf2 = (char *)lfm;
+       data.ioc_inllen2 = lfm_size;
+       data.ioc_type = mode;
+       rc = llapi_ioctl_pack(&data, &buf, sizeof(rawbuf));
+       if (rc) {
+               llapi_error(LLAPI_MSG_ERROR, rc,
+                           "error: LL_IOC_LMV_SETSTRIPE pack failed '%s'.",
+                           name);
+               goto out;
+       }
+
+       fd = open(dir, O_DIRECTORY | O_RDONLY);
+       if (fd < 0) {
+               rc = -errno;
+               llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
+               goto out;
+       }
+
+       if (ioctl(fd, LL_IOC_LMV_SETSTRIPE, buf)) {
+               char *errmsg = "stripe already set";
+
+               rc = -errno;
+               if (errno != EEXIST && errno != EALREADY)
+                       errmsg = strerror(errno);
+
+               llapi_err_noerrno(LLAPI_MSG_ERROR,
+                                 "dirstripe error on '%s': %s", name, errmsg);
+       }
+       close(fd);
+out:
+       free(namepath);
+       free(dirpath);
+       free(lfm);
+       return rc;
+}
 
 int llapi_dir_create_pool(const char *name, int mode, int stripe_offset,
                          int stripe_count, int stripe_pattern,
@@ -1150,6 +1261,7 @@ int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
        FILE *fp;
        int idx = 0, len = 0, mntlen, fd;
        int rc = -ENODEV;
+       int fsnamelen, mountlen;
 
         /* get the mount point */
        fp = setmntent(PROC_MOUNTS, "r");
@@ -1183,30 +1295,32 @@ int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
                        ptr_end++;
 
                /* Check the fsname for a match, if given */
+               mountlen = ptr_end - ptr;
                 if (!(want & WANT_FSNAME) && fsname != NULL &&
-                   (strlen(fsname) > 0) &&
-                   (strncmp(ptr, fsname, ptr_end - ptr) != 0))
-                        continue;
+                   (fsnamelen = strlen(fsname)) > 0 &&
+                   (fsnamelen != mountlen ||
+                   (strncmp(ptr, fsname, mountlen) != 0)))
+                                       continue;
 
                 /* If the path isn't set return the first one we find */
                if (path == NULL || strlen(path) == 0) {
-                       strncpy(mntdir, mnt.mnt_dir, strlen(mnt.mnt_dir));
-                       mntdir[strlen(mnt.mnt_dir)] = '\0';
+                       strncpy(mntdir, mnt.mnt_dir, sizeof(mntdir) - 1);
+                       mntdir[sizeof(mntdir) - 1] = '\0';
                        if ((want & WANT_FSNAME) && fsname != NULL) {
-                               strncpy(fsname, ptr, ptr_end - ptr);
-                               fsname[ptr_end - ptr] = '\0';
+                               strncpy(fsname, ptr, mountlen);
+                               fsname[mountlen] = '\0';
                        }
                        rc = 0;
                        break;
                /* Otherwise find the longest matching path */
                } else if ((strlen(path) >= mntlen) && (mntlen >= len) &&
                           (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
-                       strncpy(mntdir, mnt.mnt_dir, strlen(mnt.mnt_dir));
-                       mntdir[strlen(mnt.mnt_dir)] = '\0';
+                       strncpy(mntdir, mnt.mnt_dir, sizeof(mntdir) - 1);
+                       mntdir[sizeof(mntdir) - 1] = '\0';
                        len = mntlen;
                        if ((want & WANT_FSNAME) && fsname != NULL) {
-                               strncpy(fsname, ptr, ptr_end - ptr);
-                               fsname[ptr_end - ptr] = '\0';
+                               strncpy(fsname, ptr, mountlen);
+                               fsname[mountlen] = '\0';
                        }
                        rc = 0;
                }
@@ -1216,7 +1330,7 @@ int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
        /* Found it */
        if (rc == 0) {
                if ((want & WANT_PATH) && path != NULL) {
-                       strncpy(path, mntdir, strlen(mntdir));
+                       strncpy(path, mntdir, PATH_MAX);
                        path[strlen(mntdir)] = '\0';
                }
                if (want & WANT_FD) {
@@ -1472,54 +1586,51 @@ int llapi_get_poolmembers(const char *poolname, char **members,
 int llapi_get_poollist(const char *name, char **poollist, int list_size,
                        char *buffer, int buffer_size)
 {
-       char rname[PATH_MAX];
        glob_t pathname;
        char *fsname;
-        char *ptr;
-        DIR *dir;
+       char *ptr;
+       DIR *dir;
        struct dirent *pool;
-        int rc = 0;
-        unsigned int nb_entries = 0;
-        unsigned int used = 0;
-        unsigned int i;
+       int rc = 0;
+       unsigned int nb_entries = 0;
+       unsigned int used = 0;
+       unsigned int i;
 
        /* initialize 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;
+       for (i = 0; i < list_size; i++)
+               poollist[i] = NULL;
 
-                if (!realpath(name, rname)) {
-                        rc = -errno;
-                        llapi_error(LLAPI_MSG_ERROR, rc, "invalid path '%s'",
-                                    name);
-                        return rc;
-                }
+       /* is name a pathname ? */
+       ptr = strchr(name, '/');
+       if (ptr != NULL) {
+               char fsname_buf[MAXNAMLEN];
 
-               fsname = strdup(rname);
+               /* We will need fsname for printing later */
+               rc = llapi_getname(name, fsname_buf, sizeof(fsname_buf));
+               if (rc)
+                       return rc;
+
+               ptr = strrchr(fsname_buf, '-');
+               if (ptr)
+                       *ptr = '\0';
+
+               fsname = strdup(fsname_buf);
                if (!fsname)
                        return -ENOMEM;
-
-               rc = poolpath(&pathname, NULL, rname);
        } else {
                /* name is FSNAME */
                fsname = strdup(name);
                if (!fsname)
                        return -ENOMEM;
-               rc = poolpath(&pathname, fsname, NULL);
        }
+
+       rc = poolpath(&pathname, fsname, NULL);
        if (rc != 0) {
                llapi_error(LLAPI_MSG_ERROR, rc,
                            "Lustre filesystem '%s' not found", name);
                goto free_path;
        }
 
-       llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
        dir = opendir(pathname.gl_pathv[0]);
        if (dir == NULL) {
                rc = -errno;
@@ -1544,14 +1655,14 @@ int llapi_get_poollist(const char *name, char **poollist, int list_size,
                 /* check output bounds */
                if (nb_entries >= list_size) {
                        rc = -EOVERFLOW;
-                       goto free_dir;
+                       goto free_dir_no_msg;
                }
 
                 /* +2 for '.' and final '\0' */
                if (used + strlen(pool->d_name) + strlen(fsname) + 2
                    > buffer_size) {
                        rc = -EOVERFLOW;
-                       goto free_dir;
+                       goto free_dir_no_msg;
                }
 
                sprintf(buffer + used, "%s.%s", fsname, pool->d_name);
@@ -1564,6 +1675,10 @@ free_dir:
        if (rc)
                llapi_error(LLAPI_MSG_ERROR, rc,
                            "Error reading pool list for '%s'", name);
+       else
+               llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
+
+free_dir_no_msg:
        closedir(dir);
 free_path:
        cfs_free_param_data(&pathname);
@@ -1646,6 +1761,27 @@ typedef int (semantic_func_t)(char *path, DIR *parent, DIR **d,
 
 #define OBD_NOT_FOUND           (-1)
 
+static void find_param_fini(struct find_param *param)
+{
+       if (param->fp_migrate)
+               return;
+
+       if (param->fp_obd_indexes) {
+               free(param->fp_obd_indexes);
+               param->fp_obd_indexes = NULL;
+       }
+
+       if (param->fp_lmd) {
+               free(param->fp_lmd);
+               param->fp_lmd = NULL;
+       }
+
+       if (param->fp_lmv_md) {
+               free(param->fp_lmv_md);
+               param->fp_lmv_md = NULL;
+       }
+}
+
 static int common_param_init(struct find_param *param, char *path)
 {
        int lum_size = get_mds_md_size(path);
@@ -1678,6 +1814,7 @@ static int common_param_init(struct find_param *param, char *path)
                            "error: allocation of %d bytes for ioctl",
                            lmv_user_md_size(param->fp_lmv_stripe_count,
                                             LMV_USER_MAGIC_SPECIFIC));
+               find_param_fini(param);
                return -ENOMEM;
        }
 
@@ -1688,21 +1825,6 @@ static int common_param_init(struct find_param *param, char *path)
        return 0;
 }
 
-static void find_param_fini(struct find_param *param)
-{
-       if (param->fp_migrate)
-               return;
-
-       if (param->fp_obd_indexes)
-               free(param->fp_obd_indexes);
-
-       if (param->fp_lmd)
-               free(param->fp_lmd);
-
-       if (param->fp_lmv_md)
-               free(param->fp_lmv_md);
-}
-
 static int cb_common_fini(char *path, DIR *parent, DIR **dirp, void *data,
                          struct dirent64 *de)
 {
@@ -1746,7 +1868,27 @@ again:
                int stripe_count;
                int lmv_size;
 
-               stripe_count = (__u32)param->fp_lmv_md->lum_stripe_count;
+               /* if foreign LMV case, fake stripes number */
+               if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
+                       struct lmv_foreign_md *lfm;
+
+                       lfm = (struct lmv_foreign_md *)param->fp_lmv_md;
+                       if (lfm->lfm_length < XATTR_SIZE_MAX -
+                           offsetof(typeof(*lfm), lfm_value)) {
+                               uint32_t size = lfm->lfm_length +
+                                            offsetof(typeof(*lfm), lfm_value);
+
+                               stripe_count = lmv_foreign_to_md_stripes(size);
+                       } else {
+                               llapi_error(LLAPI_MSG_ERROR, -EINVAL,
+                                           "error: invalid %d foreign size "
+                                           "returned from ioctl",
+                                           lfm->lfm_length);
+                               return -EINVAL;
+                       }
+               } else {
+                       stripe_count = param->fp_lmv_md->lum_stripe_count;
+               }
                if (stripe_count <= param->fp_lmv_stripe_count)
                        return ret;
 
@@ -2474,12 +2616,15 @@ int sattr_cache_get_defaults(const char *const fsname,
 
 static char *layout2name(__u32 layout_pattern)
 {
-       if (layout_pattern == LOV_PATTERN_MDT)
+       if (layout_pattern & LOV_PATTERN_F_RELEASED)
+               return "released";
+       else if (layout_pattern == LOV_PATTERN_MDT)
                return "mdt";
        else if (layout_pattern == LOV_PATTERN_RAID0)
                return "raid0";
-       else if (layout_pattern == (LOV_PATTERN_RAID0 | LOV_PATTERN_F_RELEASED))
-               return "released";
+       else if (layout_pattern ==
+                       (LOV_PATTERN_RAID0 | LOV_PATTERN_OVERSTRIPING))
+               return "raid0,overstriped";
        else
                return "unknown";
 }
@@ -2490,6 +2635,7 @@ enum lov_dump_flags {
        LDF_INDENT      = 0x0004,
        LDF_SKIP_OBJS   = 0x0008,
        LDF_YAML        = 0x0010,
+       LDF_EXTENSION   = 0x0020,
 };
 
 static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
@@ -2503,6 +2649,7 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
        bool indent = flags & LDF_INDENT;
        bool yaml = flags & LDF_YAML;
        bool skip_objs = flags & LDF_SKIP_OBJS;
+       bool extension = flags & LDF_EXTENSION;
        char *prefix = is_dir ? "" : "lmm_";
        char *separator = "";
        char *space = indent ? "      " : "";
@@ -2560,10 +2707,10 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                ver = (__u32)(lmm_oi_id(&lum->lmm_oi) >> 32);
                if (yaml)
                        llapi_printf(LLAPI_MSG_NORMAL, DFID_NOBRACE"\n",
-                                    seq, oid, ver);
+                                    (unsigned long long)seq, oid, ver);
                else
                        llapi_printf(LLAPI_MSG_NORMAL, DFID"\n",
-                                    seq, oid, ver);
+                                    (unsigned long long)seq, oid, ver);
        }
 
        if (verbose & VERBOSE_STRIPE_COUNT) {
@@ -2586,12 +2733,12 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                                                    " stripe count.");
                        } else {
                                llapi_printf(LLAPI_MSG_NORMAL, "%d",
-                                            lum->lmm_stripe_count ==
-                                            (typeof(lum->lmm_stripe_count))(-1)
-                                            ? -1 : lum->lmm_stripe_count);
+                                            extension ? 0 :
+                                            (__s16)lum->lmm_stripe_count);
                        }
                } else {
                        llapi_printf(LLAPI_MSG_NORMAL, "%hd",
+                                    extension ? 0 :
                                     (__s16)lum->lmm_stripe_count);
                }
                if (!yaml && is_dir)
@@ -2600,9 +2747,13 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                        separator = "\n";
        }
 
-       if (verbose & VERBOSE_STRIPE_SIZE) {
+       if (((verbose & VERBOSE_STRIPE_SIZE) && !extension) ||
+           ((verbose & VERBOSE_EXT_SIZE) && extension)) {
                llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
-               if (verbose & ~VERBOSE_STRIPE_SIZE)
+               if (verbose & ~VERBOSE_EXT_SIZE && extension)
+                       llapi_printf(LLAPI_MSG_NORMAL, "%s%sextension_size: ",
+                                    space, prefix);
+               if (verbose & ~VERBOSE_STRIPE_SIZE && !extension)
                        llapi_printf(LLAPI_MSG_NORMAL, "%s%sstripe_size:   ",
                                     space, prefix);
                if (is_dir && !is_raw && lum->lmm_stripe_size == 0) {
@@ -2616,8 +2767,11 @@ static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
                                            "Cannot determine default"
                                            " stripe size.");
                } else {
-                       llapi_printf(LLAPI_MSG_NORMAL, "%u",
-                                    lum->lmm_stripe_size);
+                       /* Extension size is in KiB */
+                       llapi_printf(LLAPI_MSG_NORMAL, "%llu",
+                                    extension ?
+                                    (unsigned long long)(lum->lmm_stripe_size * SEL_UNIT_SIZE) :
+                                    (unsigned long long)lum->lmm_stripe_size);
                }
                if (!yaml && is_dir)
                        separator = " ";
@@ -2850,10 +3004,10 @@ void lmv_dump_user_lmm(struct lmv_user_md *lum, char *pool_name,
                else
                        llapi_printf(LLAPI_MSG_NORMAL, "%#x", type);
 
+               if (flags & LMV_HASH_FLAG_SPACE)
+                       llapi_printf(LLAPI_MSG_NORMAL, ",space");
                if (flags & LMV_HASH_FLAG_MIGRATION)
                        llapi_printf(LLAPI_MSG_NORMAL, ",migrating");
-               if (flags & LMV_HASH_FLAG_DEAD)
-                       llapi_printf(LLAPI_MSG_NORMAL, ",dead");
                if (flags & LMV_HASH_FLAG_BAD_TYPE)
                        llapi_printf(LLAPI_MSG_NORMAL, ",bad_type");
                if (flags & LMV_HASH_FLAG_LOST_LMV)
@@ -3035,7 +3189,7 @@ static void lov_dump_comp_v1_entry(struct find_param *param,
                                     "%4slcme_timestamp:      ", " ");
                if (yaml) {
                        llapi_printf(LLAPI_MSG_NORMAL, "%llu",
-                                                       entry->lcme_timestamp);
+                                    (unsigned long long)entry->lcme_timestamp);
                } else {
                        time_t stamp = entry->lcme_timestamp;
                        char *date_str = asctime(localtime(&stamp));
@@ -3053,7 +3207,7 @@ static void lov_dump_comp_v1_entry(struct find_param *param,
                        llapi_printf(LLAPI_MSG_NORMAL,
                                     "%4slcme_extent.e_start: ", " ");
                llapi_printf(LLAPI_MSG_NORMAL, "%llu",
-                            entry->lcme_extent.e_start);
+                            (unsigned long long)entry->lcme_extent.e_start);
                separator = "\n";
        }
 
@@ -3066,7 +3220,7 @@ static void lov_dump_comp_v1_entry(struct find_param *param,
                        llapi_printf(LLAPI_MSG_NORMAL, "%s", "EOF");
                else
                        llapi_printf(LLAPI_MSG_NORMAL, "%llu",
-                                       entry->lcme_extent.e_end);
+                                    (unsigned long long)entry->lcme_extent.e_end);
                separator = "\n";
        }
 
@@ -3106,12 +3260,12 @@ static void lov_dump_comp_v1_entry(struct find_param *param,
  * (limit - margin, limit]. */
 static int find_value_cmp(unsigned long long file, unsigned long long limit,
                          int sign, int negopt, unsigned long long margin,
-                         int mds)
+                         bool mds)
 {
        int ret = -1;
 
        if (sign > 0) {
-               /* Drop the fraction of margin (of days). */
+               /* Drop the fraction of margin (of days or size). */
                if (file + margin <= limit)
                        ret = mds ? 0 : 1;
        } else if (sign == 0) {
@@ -3254,7 +3408,7 @@ static void lov_dump_comp_v1(struct find_param *param, char *path,
        struct lov_user_md_v1 *v1;
        char pool_name[LOV_MAXPOOLNAME + 1];
        int obdindex = param->fp_obd_index;
-       int i, j, match;
+       int i, j, match, ext;
        bool obdstripe = false;
        __u16 mirror_index = 0;
        __u16 mirror_id = 0;
@@ -3351,8 +3505,15 @@ static void lov_dump_comp_v1(struct find_param *param, char *path,
                         */
                        if (entry->lcme_flags & LCME_FL_INIT)
                                continue;
-                       else
-                               break;
+
+                       if (param->fp_verbose & VERBOSE_EXT_SIZE) {
+                               if (entry->lcme_flags & LCME_FL_EXTENSION)
+                                       /* moved back below */
+                                       i++;
+                               else
+                                       continue;
+                       }
+                       break;
                }
 
                if (entry->lcme_flags & LCME_FL_INIT) {
@@ -3382,9 +3543,10 @@ static void lov_dump_comp_v1(struct find_param *param, char *path,
                objects = lov_v1v3_objects(v1);
                lov_v1v3_pool_name(v1, pool_name);
 
+               ext = entry->lcme_flags & LCME_FL_EXTENSION ? LDF_EXTENSION : 0;
                lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
                                       param->fp_max_depth, param->fp_verbose,
-                                      flags);
+                                      flags | ext);
        }
        if (print_last_init_comp(param)) {
                /**
@@ -3403,9 +3565,11 @@ static void lov_dump_comp_v1(struct find_param *param, char *path,
                objects = lov_v1v3_objects(v1);
                lov_v1v3_pool_name(v1, pool_name);
 
+               entry = &comp_v1->lcm_entries[i];
+               ext = entry->lcme_flags & LCME_FL_EXTENSION ? LDF_EXTENSION : 0;
                lov_dump_user_lmm_v1v3(v1, pool_name, objects, path, obdindex,
                                       param->fp_max_depth, param->fp_verbose,
-                                      flags);
+                                      flags | ext);
        }
 }
 
@@ -3508,6 +3672,84 @@ static void lov_dump_plain_user_lmm(struct find_param *param, char *path,
        }
 }
 
+static uint32_t check_foreign_type(uint32_t foreign_type)
+{
+       uint32_t i;
+
+       for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
+               if (lu_foreign_types[i].lft_name == NULL)
+                       break;
+               if (foreign_type == lu_foreign_types[i].lft_type)
+                       return i;
+       }
+
+       return LU_FOREIGN_TYPE_UNKNOWN;
+}
+
+static void lov_dump_foreign_lmm(struct find_param *param, char *path,
+                                enum lov_dump_flags flags)
+{
+       struct lov_foreign_md *lfm = (void *)&param->fp_lmd->lmd_lmm;
+       bool yaml = flags & LDF_YAML;
+
+       if (!yaml && param->fp_depth && path)
+               llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
+
+       if (param->fp_verbose & VERBOSE_DETAIL) {
+               uint32_t type = check_foreign_type(lfm->lfm_type);
+
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_magic:         0x%08X\n",
+                            lfm->lfm_magic);
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_length:          %u\n",
+                            lfm->lfm_length);
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_type:          0x%08X",
+                            lfm->lfm_type);
+               if (type < LU_FOREIGN_TYPE_UNKNOWN)
+                       llapi_printf(LLAPI_MSG_NORMAL, " (%s)\n",
+                                    lu_foreign_types[type].lft_name);
+               else
+                       llapi_printf(LLAPI_MSG_NORMAL, " (unknown)\n");
+
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_flags:          0x%08X\n",
+                            lfm->lfm_flags);
+       }
+       llapi_printf(LLAPI_MSG_NORMAL, "lfm_value:     '%.*s'\n",
+                    lfm->lfm_length, lfm->lfm_value);
+       llapi_printf(LLAPI_MSG_NORMAL, "\n");
+}
+
+static void lmv_dump_foreign_lmm(struct find_param *param, char *path,
+                                   enum lov_dump_flags flags)
+{
+       struct lmv_foreign_md *lfm = (struct lmv_foreign_md *)param->fp_lmv_md;
+       bool yaml = flags & LDF_YAML;
+
+       if (!yaml && param->fp_depth && path)
+               llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
+
+       if (param->fp_verbose & VERBOSE_DETAIL) {
+               uint32_t type = check_foreign_type(lfm->lfm_type);
+
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_magic:         0x%08X\n",
+                            lfm->lfm_magic);
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_length:          %u\n",
+                            lfm->lfm_length);
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_type:          0x%08X",
+                            lfm->lfm_type);
+               if (type < LU_FOREIGN_TYPE_UNKNOWN)
+                       llapi_printf(LLAPI_MSG_NORMAL, " (%s)\n",
+                                    lu_foreign_types[type].lft_name);
+               else
+                       llapi_printf(LLAPI_MSG_NORMAL, " (unknown)\n");
+
+               llapi_printf(LLAPI_MSG_NORMAL, "lfm_flags:          0x%08X\n",
+                            lfm->lfm_flags);
+       }
+       llapi_printf(LLAPI_MSG_NORMAL, "lfm_value:     '%.*s'\n",
+                    lfm->lfm_length, lfm->lfm_value);
+       llapi_printf(LLAPI_MSG_NORMAL, "\n");
+}
+
 static void llapi_lov_dump_user_lmm(struct find_param *param, char *path,
                                    enum lov_dump_flags flags)
 {
@@ -3529,6 +3771,9 @@ static void llapi_lov_dump_user_lmm(struct find_param *param, char *path,
        case LOV_USER_MAGIC_SPECIFIC:
                lov_dump_plain_user_lmm(param, path, flags);
                break;
+       case LOV_USER_MAGIC_FOREIGN:
+               lov_dump_foreign_lmm(param, path, flags);
+               break;
        case LMV_MAGIC_V1:
        case LMV_USER_MAGIC: {
                char pool_name[LOV_MAXPOOLNAME + 1];
@@ -3545,6 +3790,9 @@ static void llapi_lov_dump_user_lmm(struct find_param *param, char *path,
        case LOV_USER_MAGIC_COMP_V1:
                lov_dump_comp_v1(param, path, flags);
                break;
+       case LMV_MAGIC_FOREIGN:
+               lmv_dump_foreign_lmm(param, path, flags);
+               break;
        default:
                llapi_printf(LLAPI_MSG_NORMAL, "unknown lmm_magic:  %#x "
                             "(expecting one of %#x %#x %#x %#x)\n",
@@ -3582,8 +3830,7 @@ int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
        fd = open(dname, O_RDONLY | O_NONBLOCK);
        if (fd == -1) {
                rc = -errno;
-               free(dname);
-               return rc;
+               goto out_free;
        }
 
        strcpy((char *)lum, fname);
@@ -3593,6 +3840,7 @@ int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
        if (close(fd) == -1 && rc == 0)
                rc = -errno;
 
+out_free:
        free(dname);
        return rc;
 }
@@ -3642,7 +3890,7 @@ static int find_time_check(lstat_t *st, struct find_param *param, int mds)
        if (param->fp_atime) {
                rc2 = find_value_cmp(st->st_atime, param->fp_atime,
                                     param->fp_asign, param->fp_exclude_atime,
-                                    24 * 60 * 60, mds);
+                                    param->fp_time_margin, mds);
                if (rc2 < 0)
                        return rc2;
                rc = rc2;
@@ -3651,7 +3899,7 @@ static int find_time_check(lstat_t *st, struct find_param *param, int mds)
        if (param->fp_mtime) {
                rc2 = find_value_cmp(st->st_mtime, param->fp_mtime,
                                     param->fp_msign, param->fp_exclude_mtime,
-                                    24 * 60 * 60, mds);
+                                    param->fp_time_margin, mds);
                if (rc2 < 0)
                        return rc2;
 
@@ -3664,7 +3912,7 @@ static int find_time_check(lstat_t *st, struct find_param *param, int mds)
        if (param->fp_ctime) {
                rc2 = find_value_cmp(st->st_ctime, param->fp_ctime,
                                     param->fp_csign, param->fp_exclude_ctime,
-                                    24 * 60 * 60, mds);
+                                    param->fp_time_margin, mds);
                if (rc2 < 0)
                        return rc2;
 
@@ -3696,6 +3944,10 @@ static int check_obd_match(struct find_param *param)
        if (!S_ISREG(st->st_mode))
                return 0;
 
+       /* exclude foreign */
+       if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+               return param->fp_exclude_obd;
+
        /* Only those files should be accepted, which have a
         * stripe on the specified OST. */
        if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
@@ -3776,23 +4028,66 @@ static int find_check_stripe_size(struct find_param *param)
 {
        struct lov_comp_md_v1 *comp_v1 = NULL;
        struct lov_user_md_v1 *v1 = &param->fp_lmd->lmd_lmm;
+       __u32 stripe_size = 0;
        int ret, i, count = 1;
 
+       if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+               return param->fp_exclude_stripe_size ? 1 : -1;
+
+       ret = param->fp_exclude_stripe_size ? 1 : -1;
        if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
                comp_v1 = (struct lov_comp_md_v1 *)v1;
                count = comp_v1->lcm_entry_count;
-               ret = param->fp_exclude_stripe_size ? 1 : -1;
        }
 
        for (i = 0; i < count; i++) {
-               if (comp_v1)
+               struct lov_comp_md_entry_v1 *ent;
+
+               if (comp_v1) {
                        v1 = lov_comp_entry(comp_v1, i);
 
-               ret = find_value_cmp(v1->lmm_stripe_size, param->fp_stripe_size,
-                                    param->fp_stripe_size_sign,
-                                    param->fp_exclude_stripe_size,
-                                    param->fp_stripe_size_units, 0);
-               /* If any stripe_size matches */
+                       ent = &comp_v1->lcm_entries[i];
+                       if (ent->lcme_flags & LCME_FL_EXTENSION)
+                               continue;
+                       if (!(ent->lcme_flags & LCME_FL_INIT))
+                               continue;
+               }
+               stripe_size = v1->lmm_stripe_size;
+       }
+
+       ret = find_value_cmp(stripe_size, param->fp_stripe_size,
+                            param->fp_stripe_size_sign,
+                            param->fp_exclude_stripe_size,
+                            param->fp_stripe_size_units, 0);
+
+       return ret;
+}
+
+static int find_check_ext_size(struct find_param *param)
+{
+       struct lov_comp_md_v1 *comp_v1;
+       struct lov_user_md_v1 *v1;
+       int ret, i;
+
+       ret = param->fp_exclude_ext_size ? 1 : -1;
+       comp_v1 = (struct lov_comp_md_v1 *)&param->fp_lmd->lmd_lmm;
+       if (comp_v1->lcm_magic != LOV_USER_MAGIC_COMP_V1)
+               return ret;
+
+       for (i = 0; i < comp_v1->lcm_entry_count; i++) {
+               struct lov_comp_md_entry_v1 *ent;
+
+               v1 = lov_comp_entry(comp_v1, i);
+
+               ent = &comp_v1->lcm_entries[i];
+               if (!(ent->lcme_flags & LCME_FL_EXTENSION))
+                       continue;
+
+               ret = find_value_cmp(v1->lmm_stripe_size, param->fp_ext_size,
+                                    param->fp_ext_size_sign,
+                                    param->fp_exclude_ext_size,
+                                    param->fp_ext_size_units, 0);
+               /* If any ext_size matches */
                if (ret != -1)
                        break;
        }
@@ -3807,15 +4102,28 @@ static __u32 find_get_stripe_count(struct find_param *param)
        int i, count = 1;
        __u32 stripe_count = 0;
 
+       if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+               return 0;
+
        if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
                comp_v1 = (struct lov_comp_md_v1 *)v1;
                count = comp_v1->lcm_entry_count;
        }
 
        for (i = 0; i < count; i++) {
-               if (comp_v1)
+               if (comp_v1) {
+                       struct lov_comp_md_entry_v1 *ent;
+
                        v1 = lov_comp_entry(comp_v1, i);
-               stripe_count += v1->lmm_stripe_count;
+
+                       ent = &comp_v1->lcm_entries[i];
+                       if (!(ent->lcme_flags & LCME_FL_INIT))
+                               continue;
+
+                       if (ent->lcme_flags & LCME_FL_EXTENSION)
+                               continue;
+               }
+               stripe_count = v1->lmm_stripe_count;
        }
 
        return stripe_count;
@@ -3839,6 +4147,10 @@ static int find_check_layout(struct find_param *param)
                if (comp_v1)
                        v1 = lov_comp_entry(comp_v1, i);
 
+               /* foreign file have a special magic but no pattern field */
+               if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+                       continue;
+
                if (v1->lmm_pattern == LOV_PATTERN_INVALID)
                        continue;
 
@@ -3859,6 +4171,45 @@ static int find_check_layout(struct find_param *param)
        return -1;
 }
 
+/* if no type specified, check/exclude all foreign
+ * if type specified, check all foreign&type and exclude !foreign + foreign&type
+ */
+static int find_check_foreign(struct find_param *param)
+{
+       if (S_ISREG(param->fp_lmd->lmd_st.st_mode)) {
+               struct lov_foreign_md *lfm;
+
+               lfm = (void *)&param->fp_lmd->lmd_lmm;
+               if (lfm->lfm_magic != LOV_USER_MAGIC_FOREIGN) {
+                       if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN)
+                               return param->fp_exclude_foreign ? 1 : -1;
+                       return -1;
+               } else {
+                       if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN ||
+                           lfm->lfm_type == param->fp_foreign_type)
+                               return param->fp_exclude_foreign ? -1 : 1;
+                       return param->fp_exclude_foreign ? 1 : -1;
+               }
+       }
+
+       if (S_ISDIR(param->fp_lmd->lmd_st.st_mode)) {
+               struct lmv_foreign_md *lfm;
+
+               lfm = (void *)param->fp_lmv_md;
+               if (lfm->lfm_magic != LMV_MAGIC_FOREIGN) {
+                       if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN)
+                               return param->fp_exclude_foreign ? 1 : -1;
+                       return -1;
+               } else {
+                       if (param->fp_foreign_type == LU_FOREIGN_TYPE_UNKNOWN ||
+                           lfm->lfm_type == param->fp_foreign_type)
+                               return param->fp_exclude_foreign ? -1 : 1;
+                       return param->fp_exclude_foreign ? 1 : -1;
+               }
+       }
+       return -1;
+}
+
 static int find_check_pool(struct find_param *param)
 {
        struct lov_comp_md_v1 *comp_v1 = NULL;
@@ -3879,6 +4230,9 @@ static int find_check_pool(struct find_param *param)
                if (comp_v1 != NULL)
                        v1 = lov_comp_entry(comp_v1, i);
 
+               if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+                       continue;
+
                if (((v1->lmm_magic == LOV_USER_MAGIC_V1) &&
                     (param->fp_poolname[0] == '\0')) ||
                    ((v1->lmm_magic == LOV_USER_MAGIC_V3) &&
@@ -3906,6 +4260,9 @@ static int find_check_comp_options(struct find_param *param)
        struct lov_comp_md_entry_v1 *entry;
        int i, ret = 0;
 
+       if (v1->lmm_magic == LOV_USER_MAGIC_FOREIGN)
+               return -1;
+
        if (v1->lmm_magic == LOV_USER_MAGIC_COMP_V1) {
                comp_v1 = (struct lov_comp_md_v1 *)v1;
        } else {
@@ -3970,7 +4327,7 @@ static int find_check_comp_options(struct find_param *param)
                break;
        }
 out:
-       if (forged_v1 != NULL)
+       if (forged_v1)
                free(forged_v1);
        return ret;
 }
@@ -4014,8 +4371,8 @@ static bool find_check_lmm_info(struct find_param *param)
               param->fp_check_stripe_size || param->fp_check_layout ||
               param->fp_check_comp_count || param->fp_check_comp_end ||
               param->fp_check_comp_start || param->fp_check_comp_flags ||
-              param->fp_check_mirror_count ||
-              param->fp_check_mirror_state ||
+              param->fp_check_mirror_count || param->fp_check_foreign ||
+              param->fp_check_mirror_state || param->fp_check_ext_size ||
               param->fp_check_projid;
 }
 
@@ -4092,11 +4449,22 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                 decision = 0;
 
        if (decision == 0) {
-               if (param->fp_check_mdt_count || param->fp_check_hash_type) {
+               if (dir && (param->fp_check_mdt_count ||
+                   param->fp_check_hash_type || param->fp_check_foreign)) {
                        param->fp_get_lmv = 1;
                        ret = cb_get_dirstripe(path, dir, param);
-                       if (ret != 0)
+                       if (ret != 0) {
+                               /* XXX this works to decide for foreign
+                                * criterion only
+                                */
+                               if (errno == ENODATA &&
+                                   param->fp_check_foreign) {
+                                       if (param->fp_exclude_foreign)
+                                               goto foreign;
+                                       goto decided;
+                               }
                                return ret;
+                       }
                }
 
                param->fp_lmd->lmd_lmm.lmm_magic = 0;
@@ -4190,12 +4558,24 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
                 }
         }
 
+       if (param->fp_check_foreign) {
+               decision = find_check_foreign(param);
+               if (decision == -1)
+                       goto decided;
+       }
+
        if (param->fp_check_stripe_size) {
                decision = find_check_stripe_size(param);
                if (decision == -1)
                        goto decided;
        }
 
+       if (param->fp_check_ext_size) {
+               decision = find_check_ext_size(param);
+               if (decision == -1)
+                       goto decided;
+       }
+
        if (param->fp_check_stripe_count) {
                decision = find_value_cmp(stripe_count, param->fp_stripe_count,
                                          param->fp_stripe_count_sign,
@@ -4205,6 +4585,11 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
        }
 
        if (param->fp_check_mdt_count) {
+               if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
+                       decision = -1;
+                       goto decided;
+               }
+
                decision = find_value_cmp(
                                param->fp_lmv_md->lum_stripe_count,
                                param->fp_mdt_count,
@@ -4223,6 +4608,11 @@ static int cb_find_init(char *path, DIR *parent, DIR **dirp,
        if (param->fp_check_hash_type) {
                __u32 found;
 
+               if (param->fp_lmv_md->lum_magic == LMV_MAGIC_FOREIGN) {
+                       decision = -1;
+                       goto decided;
+               }
+
                found = param->fp_lmv_md->lum_hash_type & param->fp_hash_type;
                if ((found && param->fp_exclude_hash_type) ||
                    (!found && !param->fp_exclude_hash_type)) {
@@ -4293,7 +4683,7 @@ obd_matches:
                if (ret)
                        goto out;
                if (projid == param->fp_projid) {
-                       if (param->fp_exclude_uid)
+                       if (param->fp_exclude_projid)
                                goto decided;
                } else {
                        if (!param->fp_exclude_projid)
@@ -4396,6 +4786,7 @@ obd_matches:
                        goto decided;
        }
 
+foreign:
        llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
        if (param->fp_zero_end)
                llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
@@ -4482,19 +4873,22 @@ migrate:
                        goto migrate;
                } else if (errno == EALREADY) {
                        if (param->fp_verbose & VERBOSE_DETAIL)
-                               fprintf(stdout,
-                                       "%s was migrated to MDT%d already\n",
-                                       path, lmu->lum_stripe_offset);
+                               llapi_printf(LLAPI_MSG_NORMAL,
+                                            "%s was migrated to MDT%d already\n",
+                                            path, lmu->lum_stripe_offset);
                        ret = 0;
                } else {
                        ret = -errno;
-                       fprintf(stderr, "%s migrate failed: %s (%d)\n",
-                               path, strerror(-ret), ret);
+                       llapi_error(LLAPI_MSG_ERROR, ret,
+                                   "%s migrate failed: %s (%d)\n",
+                                   path, strerror(-ret), ret);
                        goto out;
                }
        } else if (param->fp_verbose & VERBOSE_DETAIL) {
-               fprintf(stdout, "migrate %s to MDT%d stripe count %d\n",
-                       path, lmu->lum_stripe_offset, lmu->lum_stripe_count);
+               llapi_printf(LLAPI_MSG_NORMAL,
+                            "migrate %s to MDT%d stripe count %d\n",
+                            path, lmu->lum_stripe_offset,
+                            lmu->lum_stripe_count);
        }
 
 out:
@@ -4861,52 +5255,66 @@ failed:
 int llapi_target_iterate(int type_num, char **obd_type,
                          void *args, llapi_cb_t cb)
 {
-       char buf[MAX_STRING_SIZE];
        int i, rc = 0;
        glob_t param;
        FILE *fp;
 
-       rc = cfs_get_param_paths(&param, "devices");
-       if (rc != 0)
-               return -ENOENT;
+       for (i = 0; i < type_num; i++) {
+               int j;
 
-       fp = fopen(param.gl_pathv[0], "r");
-       if (fp == NULL) {
-               rc = -errno;
-               llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
-                           param.gl_pathv[0]);
-               goto free_path;
-       }
+               rc = cfs_get_param_paths(&param, "%s/*/uuid", obd_type[i]);
+               if (rc != 0)
+                       continue;
 
-        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_statfs osfs_buffer;
+               for (j = 0; j < param.gl_pathc; j++) {
+                       char obd_uuid[UUID_MAX + 1];
+                       char *obd_name;
+                       char *ptr;
 
-                while(bufp[0] == ' ')
-                        ++bufp;
+                       fp = fopen(param.gl_pathv[j], "r");
+                       if (fp == NULL) {
+                               rc = -errno;
+                               llapi_error(LLAPI_MSG_ERROR, rc,
+                                           "error: opening '%s'",
+                                           param.gl_pathv[j]);
+                               goto free_path;
+                       }
 
-                for(i = 0; i < 3; i++) {
-                        obd_type_name = strsep(&bufp, " ");
-                }
-                obd_name = strsep(&bufp, " ");
-                obd_uuid = strsep(&bufp, " ");
+                       if (fgets(obd_uuid, sizeof(obd_uuid), fp) == NULL) {
+                               rc = -errno;
+                               llapi_error(LLAPI_MSG_ERROR, rc,
+                                           "error: reading '%s'",
+                                           param.gl_pathv[j]);
+                               goto free_path;
+                       }
 
-                memset(&osfs_buffer, 0, sizeof (osfs_buffer));
+                       /* Extract the obd_name from the sysfs path.
+                        * 'topsysfs'/fs/lustre/'obd_type'/'obd_name'.
+                        */
+                       obd_name = strstr(param.gl_pathv[j], "/fs/lustre/");
+                       if (!obd_name) {
+                               rc = -EINVAL;
+                               goto free_path;
+                       }
 
-                for (i = 0; i < type_num; i++) {
-                        if (strcmp(obd_type_name, obd_type[i]) != 0)
-                                continue;
+                       /* skip /fs/lustre/'obd_type'/ */
+                       obd_name += strlen(obd_type[i]) + 12;
+                       /* chop off after obd_name */
+                       ptr = strrchr(obd_name, '/');
+                       if (ptr)
+                               *ptr = '\0';
 
-                        cb(obd_type_name, obd_name, obd_uuid, args);
-                }
+                       cb(obd_type[i], obd_name, obd_uuid, args);
+
+                       fclose(fp);
+                       fp = NULL;
+               }
        }
-       fclose(fp);
 free_path:
+       if (fp)
+               fclose(fp);
        cfs_free_param_data(&param);
-       return 0;
+       return rc;
 }
 
 static void do_target_check(char *obd_type_name, char *obd_name,
@@ -4934,7 +5342,7 @@ int llapi_target_check(int type_num, char **obd_type, char *dir)
 /* Is this a lustre fs? */
 int llapi_is_lustre_mnttype(const char *type)
 {
-        return (strcmp(type, "lustre") == 0 || strcmp(type,"lustre_lite") == 0);
+       return strcmp(type, "lustre") == 0 || strcmp(type, "lustre_tgt") == 0;
 }
 
 /* Is this a lustre client fs? */
@@ -5552,7 +5960,7 @@ int llapi_open_by_fid(const char *lustre_dir, const struct lu_fid *fid,
                      int flags)
 {
        char mntdir[PATH_MAX];
-       char path[PATH_MAX];
+       char path[PATH_MAX + 64];
        int rc;
 
        rc = llapi_search_mounts(lustre_dir, 0, mntdir, NULL);