#include <sys/stat.h>
#include <sys/types.h>
#include <sys/syscall.h>
+#include <sys/xattr.h>
#include <fnmatch.h>
#include <glob.h>
#ifdef HAVE_LINUX_UNISTD_H
return 0;
}
-static int poolpath(char *fsname, char *pathname, char *pool_pathname);
+static int find_target_obdpath(char *fsname, char *path)
+{
+ glob_t glob_info;
+ char pattern[PATH_MAX + 1];
+ int rc;
+
+ snprintf(pattern, PATH_MAX,
+ "/proc/fs/lustre/lov/%s-*/target_obd",
+ fsname);
+ rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
+ if (rc == GLOB_NOMATCH)
+ return -ENODEV;
+ else if (rc)
+ return -EINVAL;
+
+ strcpy(path, glob_info.gl_pathv[0]);
+ globfree(&glob_info);
+ return 0;
+}
+
+static int find_poolpath(char *fsname, char *poolname, char *poolpath)
+{
+ glob_t glob_info;
+ char pattern[PATH_MAX + 1];
+ int rc;
+
+ snprintf(pattern, PATH_MAX,
+ "/proc/fs/lustre/lov/%s-*/pools/%s",
+ fsname, poolname);
+ rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
+ /* If no pools, make sure the lov is available */
+ if ((rc == GLOB_NOMATCH) &&
+ (find_target_obdpath(fsname, poolpath) == -ENODEV))
+ return -ENODEV;
+ if (rc)
+ return -EINVAL;
+
+ strcpy(poolpath, glob_info.gl_pathv[0]);
+ globfree(&glob_info);
+ return 0;
+}
+
+/*
+ * if pool is NULL, search ostname in target_obd
+ * if pool is not NULL:
+ * if pool not found returns errno < 0
+ * if ostname is NULL, returns 1 if pool is not empty and 0 if pool empty
+ * if ostname is not NULL, returns 1 if OST is in pool and 0 if not
+ */
+int llapi_search_ost(char *fsname, char *poolname, char *ostname)
+{
+ FILE *fd;
+ char buffer[PATH_MAX + 1];
+ int len = 0, rc;
+
+ if (ostname != NULL)
+ len = strlen(ostname);
+
+ if (poolname == NULL)
+ rc = find_target_obdpath(fsname, buffer);
+ else
+ rc = find_poolpath(fsname, poolname, buffer);
+ if (rc)
+ return rc;
+
+ if ((fd = fopen(buffer, "r")) == NULL)
+ return -EINVAL;
+
+ while (fgets(buffer, sizeof(buffer), fd) != NULL) {
+ if (poolname == NULL) {
+ char *ptr;
+ /* Search for an ostname in the list of OSTs
+ Line format is IDX: fsname-OSTxxxx_UUID STATUS */
+ ptr = strchr(buffer, ' ');
+ if ((ptr != NULL) &&
+ (strncmp(ptr + 1, ostname, len) == 0)) {
+ fclose(fd);
+ return 1;
+ }
+ } else {
+ /* Search for an ostname in a pool,
+ (or an existing non-empty pool if no ostname) */
+ if ((ostname == NULL) ||
+ (strncmp(buffer, ostname, len) == 0)) {
+ fclose(fd);
+ return 1;
+ }
+ }
+ }
+ fclose(fd);
+ return 0;
+}
int llapi_file_open_pool(const char *name, int flags, int mode,
unsigned long long stripe_size, int stripe_offset,
struct lov_user_md_v3 lum = { 0 };
int fd, rc = 0;
int isdir = 0;
- char fsname[MAX_OBD_NAME + 1], *ptr;
+
+ /* Make sure we have a good pool */
+ if (pool_name != NULL) {
+ char fsname[MAX_OBD_NAME + 1], *ptr;
+
+ if (llapi_search_fsname(name, fsname)) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "'%s' is not on a Lustre filesystem", name);
+ return -EINVAL;
+ }
+
+ /* in case user gives the full pool name <fsname>.<poolname>,
+ * strip the fsname */
+ ptr = strchr(pool_name, '.');
+ if (ptr != NULL) {
+ *ptr = '\0';
+ if (strcmp(pool_name, fsname) != 0) {
+ *ptr = '.';
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "Pool '%s' is not on filesystem '%s'",
+ pool_name, fsname);
+ return -EINVAL;
+ }
+ pool_name = ptr + 1;
+ }
+
+ /* Make sure the pool exists and is non-empty */
+ if ((rc = llapi_search_ost(fsname, pool_name, NULL)) < 1) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "pool '%s.%s' %s", fsname, pool_name,
+ rc == 0 ? "has no OSTs" : "does not exist");
+ return -EINVAL;
+ }
+ }
fd = open(name, flags | O_LOV_DELAY_CREATE, mode);
if (fd < 0 && errno == EISDIR) {
lum.lmm_stripe_size = stripe_size;
lum.lmm_stripe_count = stripe_count;
lum.lmm_stripe_offset = stripe_offset;
-
- /* in case user give the full pool name <fsname>.<poolname>, skip
- * the fsname */
if (pool_name != NULL) {
- ptr = strchr(pool_name, '.');
- if (ptr != NULL) {
- strncpy(fsname, pool_name, ptr - pool_name);
- *ptr = '\0';
- /* if fsname matches a filesystem skip it
- * if not keep the poolname as is */
- if (poolpath(fsname, NULL, NULL) == 0)
- pool_name = ptr + 1;
- }
strncpy(lum.lmm_pool_name, pool_name, LOV_MAXPOOLNAME);
} else {
/* If no pool is specified at all, use V1 request */
return 0;
}
-static int print_pool_members(char *fs, char *pool_dir, char *pool_file)
-{
- char path[PATH_MAX + 1];
- char buf[1024];
- FILE *fd;
-
- llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fs, pool_file);
- sprintf(path, "%s/%s", pool_dir, pool_file);
- if ((fd = fopen(path, "r")) == NULL) {
- llapi_err(LLAPI_MSG_ERROR, "Cannot open %s\n", path);
- return -EINVAL;
- }
- while (fgets(buf, sizeof(buf), fd) != NULL)
- llapi_printf(LLAPI_MSG_NORMAL, buf);
-
- fclose(fd);
- return 0;
-}
-
/*
* Find the fsname, the full path, and/or an open fd.
* Either the fsname or path must not be NULL
#define WANT_PATH 0x1
#define WANT_FSNAME 0x2
#define WANT_FD 0x4
-static int get_root_path(int want, char *fsname, int *outfd, char *path)
+#define WANT_INDEX 0x8
+#define WANT_ERROR 0x10
+static int get_root_path(int want, char *fsname, int *outfd, char *path,
+ int index)
{
struct mntent mnt;
- char buf[PATH_MAX];
+ char buf[PATH_MAX], mntdir[PATH_MAX];
char *ptr;
FILE *fp;
- int fd;
+ int idx = 0, len = 0, mntlen, fd;
int rc = -ENODEV;
/* get the mount point */
if (!llapi_is_lustre_mnt(&mnt))
continue;
+ if ((want & WANT_INDEX) && (idx++ != index))
+ continue;
+
+ mntlen = strlen(mnt.mnt_dir);
ptr = strrchr(mnt.mnt_fsname, '/');
- if (!ptr) {
+ if (!ptr && !len) {
rc = -EINVAL;
break;
}
ptr++;
- /* If path was specified and matches, store the fsname */
- if ((want & WANT_FSNAME) && (strcmp(mnt.mnt_dir, path) == 0))
- strcpy(fsname, ptr);
- /* Else check the fsname for a match */
- else if (strcmp(ptr, fsname) != 0)
+ /* Check the fsname for a match, if given */
+ if (!(want & WANT_FSNAME) && fsname != NULL &&
+ (strlen(fsname) > 0) && (strcmp(ptr, fsname) != 0))
continue;
- /* Found it */
- rc = 0;
- if (want & WANT_PATH)
- strcpy(path, mnt.mnt_dir);
+ /* If the path isn't set return the first one we find */
+ if (path == NULL || strlen(path) == 0) {
+ strcpy(mntdir, mnt.mnt_dir);
+ if ((want & WANT_FSNAME) && fsname != NULL)
+ strcpy(fsname, ptr);
+ rc = 0;
+ break;
+ /* Otherwise find the longest matching path */
+ } else if ((strlen(path) >= mntlen) && (mntlen >= len) &&
+ (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
+ strcpy(mntdir, mnt.mnt_dir);
+ len = mntlen;
+ if ((want & WANT_FSNAME) && fsname != NULL)
+ strcpy(fsname, ptr);
+ rc = 0;
+ }
+ }
+ endmntent(fp);
+
+ /* Found it */
+ if (rc == 0) {
+ if ((want & WANT_PATH) && path != NULL)
+ strcpy(path, mntdir);
if (want & WANT_FD) {
- fd = open(mnt.mnt_dir,
- O_RDONLY | O_DIRECTORY | O_NONBLOCK);
+ fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
if (fd < 0) {
perror("open");
rc = -errno;
*outfd = fd;
}
}
- break;
- }
- endmntent(fp);
- if (rc)
+ } else if (want & WANT_ERROR)
llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
"can't find fs root for '%s': %d",
(want & WANT_PATH) ? fsname : path, rc);
return rc;
}
+/*
+ * search lustre mounts
+ *
+ * Calling this function will return to the user the mount point, mntdir, and
+ * the file system name, fsname, if the user passed a buffer to this routine.
+ *
+ * The user inputs are pathname and index. If the pathname is supplied then
+ * the value of the index will be ignored. The pathname will return data if
+ * the pathname is located on a lustre mount. Index is used to pick which
+ * mount point you want in the case of multiple mounted lustre file systems.
+ * See function lfs_osts in lfs.c for a example of the index use.
+ */
+int llapi_search_mounts(const char *pathname, int index, char *mntdir,
+ char *fsname)
+{
+ int want = WANT_PATH, idx = -1;
+
+ if (!pathname) {
+ want |= WANT_INDEX;
+ idx = index;
+ } else
+ strcpy(mntdir, pathname);
+
+ if (fsname)
+ want |= WANT_FSNAME;
+ return get_root_path(want, fsname, NULL, mntdir, idx);
+}
+
+/* Given a path, find the corresponding Lustre fsname */
int llapi_search_fsname(const char *pathname, char *fsname)
{
- return get_root_path(WANT_FSNAME, fsname, NULL, (char *)pathname);
+ return get_root_path(WANT_FSNAME | WANT_ERROR, fsname, NULL,
+ (char *)pathname, -1);
}
/* return the first file matching this pattern */
char buffer[PATH_MAX];
if (fsname == NULL) {
- rc = get_root_path(WANT_FSNAME, buffer, NULL, pathname);
+ rc = llapi_search_fsname(pathname, buffer);
if (rc != 0)
return rc;
fsname = buffer;
return 0;
}
-int llapi_poollist(char *name)
+/**
+ * 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 *poolname;
- char *fsname;
- char rname[PATH_MAX + 1], pathname[PATH_MAX + 1];
+ 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, '/');
" a Lustre filesystem", name);
return rc;
}
- fsname = rname;
- poolname = NULL;
+ strcpy(fsname, rname);
} else {
- /* name is FSNAME[.POOLNAME] */
- fsname = name;
- poolname = strchr(name, '.');
- if (poolname != NULL) {
- *poolname = '\0';
- poolname++;
- }
+ /* name is FSNAME */
+ strcpy(fsname, name);
rc = poolpath(fsname, NULL, pathname);
}
if (rc != 0) {
return rc;
}
- if (poolname != NULL) {
- rc = print_pool_members(fsname, pathname, poolname);
- poolname--;
- *poolname = '.';
- } else {
- DIR *dir;
- struct dirent *pool;
+ 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;
+ }
- llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
- if ((dir = opendir(pathname)) == NULL) {
- return -EINVAL;
+ 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;
}
- while ((pool = readdir(dir)) != NULL) {
- if (!((pool->d_name[0] == '.') &&
- (pool->d_name[1] == '\0')) &&
- !((pool->d_name[0] == '.') &&
- (pool->d_name[1] == '.') &&
- (pool->d_name[2] == '\0')))
- llapi_printf(LLAPI_MSG_NORMAL, " %s.%s\n",
- fsname, pool->d_name);
+ }
+
+ 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);
}
- closedir(dir);
}
- return rc;
+
+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;
}
-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)
+static int param_callback(char *path, semantic_func_t sem_init,
+ semantic_func_t sem_fini, 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;
+ 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;
}
- param->got_uuids = 0;
- param->obdindexes = NULL;
- param->obdindex = OBD_NOT_FOUND;
- return 0;
-}
+ buf = (char *)malloc(PATH_MAX + 1);
+ if (!buf)
+ return -ENOMEM;
-static void find_param_fini(struct find_param *param)
-{
- if (param->obdindexes)
- free(param->obdindexes);
+ ret = common_param_init(param);
+ if (ret)
+ goto out;
+ param->depth = 0;
- if (param->lmd)
- free(param->lmd);
+ 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)
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)
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) {
break;
if (param->obduuid) {
- if (strncmp(param->obduuid->uuid, uuid,
- sizeof(uuid)) == 0) {
+ if (llapi_uuid_match(uuid, param->obduuid->uuid)) {
param->obdindex = index;
break;
}
fclose(fp);
- if (!param->quiet && param->obduuid &&
- (param->obdindex == OBD_NOT_FOUND)) {
+ if (param->obduuid && (param->obdindex == OBD_NOT_FOUND)) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"error: %s: unknown obduuid: %s",
- __FUNCTION__, param->obduuid->uuid);
- //rc = EINVAL;
+ __func__, param->obduuid->uuid);
+ rc = -EINVAL;
}
return (rc);
return -ENOMEM;
for (obdnum = 0; obdnum < param->num_obds; obdnum++) {
- for (i = 0; i <= obdcount; i++) {
- if (strcmp((char *)¶m->obduuid[obdnum].uuid,
- (char *)&uuids[i]) == 0) {
+ 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)
+ 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->got_uuids = 1;
- return 0;
+ return ret;
+}
+
+static int cb_ostlist(char *path, DIR *parent, DIR *d, void *data,
+ struct dirent64 *de)
+{
+ struct find_param *param = (struct find_param *)data;
+
+ LASSERT(parent != NULL || d != NULL);
+
+ /* Prepare odb. */
+ return setup_obd_uuid(d ? d : parent, path, param);
+}
+
+int llapi_ostlist(char *path, struct find_param *param)
+{
+ return param_callback(path, cb_ostlist, cb_common_fini, param);
}
static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
- int is_dir, int verbose, int quiet,
+ int is_dir, int verbose, int depth,
char *pool_name)
{
char *prefix = is_dir ? "" : "lmm_";
char nl = is_dir ? ' ' : '\n';
- if (verbose && path)
+ if (is_dir && lum->lmm_object_gr == LOV_OBJECT_GROUP_DEFAULT) {
+ lum->lmm_object_gr = 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) {
}
if (verbose & VERBOSE_COUNT) {
- if (!quiet)
+ if (verbose & ~VERBOSE_COUNT)
llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_count: ",
prefix);
- llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
- (int)lum->lmm_stripe_count, nl);
+ llapi_printf(LLAPI_MSG_NORMAL, "%hd%c",
+ (__s16)lum->lmm_stripe_count, nl);
}
if (verbose & VERBOSE_SIZE) {
- if (!quiet)
+ if (verbose & ~VERBOSE_SIZE)
llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_size: ",
prefix);
llapi_printf(LLAPI_MSG_NORMAL, "%u%c", lum->lmm_stripe_size,
}
if (verbose & VERBOSE_OFFSET) {
- if (!quiet)
- llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ",
+ if (verbose & ~VERBOSE_OFFSET)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ",
prefix);
llapi_printf(LLAPI_MSG_NORMAL, "%u%c",
lum->lmm_objects[0].l_ost_idx, nl);
}
- if ((verbose & VERBOSE_POOL) && (pool_name != NULL))
- llapi_printf(LLAPI_MSG_NORMAL, "pool: %s%c", pool_name, nl);
+ if ((verbose & VERBOSE_POOL) && (pool_name != NULL)) {
+ llapi_printf(LLAPI_MSG_NORMAL, "pool: %s", pool_name);
+ is_dir = 1;
+ }
- if (is_dir)
+ 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 quiet, int header, int body)
+ int obdindex, int depth, int header)
{
- int i, obdstripe = 0;
+ int i, obdstripe = (obdindex != OBD_NOT_FOUND) ? 0 : 1;
- if (obdindex != OBD_NOT_FOUND) {
+ if (!obdstripe) {
for (i = 0; !is_dir && i < lum->lmm_stripe_count; i++) {
if (obdindex == objects[i].l_ost_idx) {
- llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
obdstripe = 1;
break;
}
}
- } else {
- if (!quiet)
- llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
- obdstripe = 1;
- }
-
- /* if it's a directory */
- if (is_dir) {
- if (obdstripe == 1) {
- if (lum->lmm_object_gr == LOV_OBJECT_GROUP_DEFAULT) {
- llapi_printf(LLAPI_MSG_NORMAL, "(Default) ");
- lum->lmm_object_gr = LOV_OBJECT_GROUP_CLEAR;
- }
- /* maintain original behavior */
- if (!header)
- header |= VERBOSE_ALL;
- lov_dump_user_lmm_header(lum, path, is_dir, header,
- quiet, pool_name);
- }
- return;
}
- if (header && (obdstripe == 1))
- lov_dump_user_lmm_header(lum, NULL, is_dir, header, quiet,
+ if (obdstripe == 1)
+ lov_dump_user_lmm_header(lum, path, is_dir, header, depth,
pool_name);
- if (body) {
- if ((!quiet) && (obdstripe == 1))
+ if (!is_dir && (header & VERBOSE_OBJID)) {
+ if (obdstripe == 1)
llapi_printf(LLAPI_MSG_NORMAL,
"\tobdidx\t\t objid\t\tobjid\t\t group\n");
}
}
-void lov_dump_user_lmm_join(struct lov_user_md_v1 *lum, char *path,
- int is_dir, int obdindex, int quiet,
- int header, int body)
-{
- struct lov_user_md_join *lumj = (struct lov_user_md_join *)lum;
- int i, obdstripe = 0;
-
- if (obdindex != OBD_NOT_FOUND) {
- for (i = 0; i < lumj->lmm_stripe_count; i++) {
- if (obdindex == lumj->lmm_objects[i].l_ost_idx) {
- llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
- obdstripe = 1;
- break;
- }
- }
- } else {
- if (!quiet)
- llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
- obdstripe = 1;
- }
-
- if (header && obdstripe == 1) {
- lov_dump_user_lmm_header(lum, NULL, 0, header, quiet, NULL);
-
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_extent_count: %x\n",
- lumj->lmm_extent_count);
- }
-
- if (body) {
- unsigned long long start = -1, end = 0;
- if (!quiet && obdstripe == 1)
- llapi_printf(LLAPI_MSG_NORMAL,
- "joined\tobdidx\t\t objid\t\tobjid\t\t "
- "group\t\tstart\t\tend\n");
- for (i = 0; i < lumj->lmm_stripe_count; i++) {
- int idx = lumj->lmm_objects[i].l_ost_idx;
- long long oid = lumj->lmm_objects[i].l_object_id;
- long long gr = lumj->lmm_objects[i].l_object_gr;
- if (obdindex == OBD_NOT_FOUND || obdindex == idx)
- llapi_printf(LLAPI_MSG_NORMAL,
- "\t%6u\t%14llu\t%#13llx\t%14llu%s",
- idx, oid, oid, gr,
- obdindex == idx ? " *" : "");
- if (start != lumj->lmm_objects[i].l_extent_start ||
- end != lumj->lmm_objects[i].l_extent_end) {
- start = lumj->lmm_objects[i].l_extent_start;
- llapi_printf(LLAPI_MSG_NORMAL,"\t%14llu",start);
- end = lumj->lmm_objects[i].l_extent_end;
- if (end == (unsigned long long)-1)
- llapi_printf(LLAPI_MSG_NORMAL,
- "\t\tEOF\n");
- else
- llapi_printf(LLAPI_MSG_NORMAL,
- "\t\t%llu\n", end);
- } else {
- llapi_printf(LLAPI_MSG_NORMAL, "\t\t\t\t\n");
- }
- }
- llapi_printf(LLAPI_MSG_NORMAL, "\n");
- }
-}
-
void llapi_lov_dump_user_lmm(struct find_param *param,
char *path, int is_dir)
{
lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, NULL,
param->lmd->lmd_lmm.lmm_objects,
path, is_dir,
- param->obdindex, param->quiet,
- param->verbose,
- (param->verbose || !param->obduuid));
- break;
- case LOV_USER_MAGIC_JOIN:
- lov_dump_user_lmm_join(¶m->lmd->lmd_lmm, path, is_dir,
- param->obdindex, param->quiet,
- param->verbose,
- (param->verbose || !param->obduuid));
+ param->obdindex, param->maxdepth,
+ param->verbose);
break;
case LOV_USER_MAGIC_V3: {
char pool_name[LOV_MAXPOOLNAME + 1];
objects = lmmv3->lmm_objects;
lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, pool_name,
objects, path, is_dir,
- param->obdindex, param->quiet,
- param->verbose,
- (param->verbose || !param->obduuid));
+ 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_JOIN,
- LOV_USER_MAGIC_V3);
+ LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3);
return;
}
}
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);
-}
-
-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",
- __FUNCTION__, path);
- return ret;
- }
- } else if (errno == ENOENT) {
- llapi_err(LLAPI_MSG_WARN,
- "warning: %s: %s does not exist",
- __FUNCTION__, path);
- return -ENOENT;
- } else {
- llapi_err(LLAPI_MSG_ERROR,
- "error: %s: IOC_MDC_GETFILEINFO failed for %s",
- __FUNCTION__, path);
- return ret;
- }
- }
-
- 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;
-}
-
-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'",
- __FUNCTION__, 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",
- __FUNCTION__);
- 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",
- __FUNCTION__, 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);
- }
- }
+ data.ioc_len = sizeof(data);
+ data.ioc_inlbuf1 = (char *)name;
+ data.ioc_inllen1 = strlen(name) + 1;
-out:
- path[len] = 0;
+ 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;
+ }
- if (sem_fini)
- sem_fini(path, parent, d, data, de);
-err:
- if (d)
- closedir(d);
- if (p)
- closedir(p);
- return ret;
+ return ioctl(dirfd, IOC_MDC_LOOKUP, buf);
}
/* Check if the value matches 1 of the given criteria (e.g. --atime +/-N).
if (ret) {
llapi_err(LLAPI_MSG_ERROR,
"error: %s: lstat failed for %s",
- __FUNCTION__, path);
+ __func__, path);
return ret;
}
} else if (errno == ENOENT) {
llapi_err(LLAPI_MSG_WARN,
"warning: %s: %s does not exist",
- __FUNCTION__, path);
+ __func__, path);
goto decided;
} else {
llapi_err(LLAPI_MSG_ERROR,"error: %s: %s failed for %s",
- __FUNCTION__, dir ? "LL_IOC_MDC_GETINFO" :
+ __func__, dir ? "LL_IOC_MDC_GETINFO" :
"IOC_MDC_GETFILEINFO", path);
return ret;
}
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)
+ 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 (i == param->lmd->lmd_lmm.lmm_stripe_count) {
+ if (param->exclude_obd)
+ goto obd_matches;
goto decided;
+ }
}
}
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->size)) {
+ param->lmd->lmd_lmm.lmm_stripe_count &&
+ (param->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
if (errno == ENOENT) {
llapi_err(LLAPI_MSG_ERROR,
"warning: %s: %s does not exist",
- __FUNCTION__, path);
+ __func__, path);
goto decided;
} else {
llapi_err(LLAPI_MSG_ERROR,
"%s: IOC_LOV_GETINFO on %s failed",
- __FUNCTION__, path);
+ __func__, path);
return ret;
}
}
return 0;
}
-static int cb_common_fini(char *path, DIR *parent, DIR *d, void *data,
- cfs_dirent_t *de)
+int llapi_find(char *path, struct find_param *param)
{
- struct find_param *param = (struct find_param *)data;
- param->depth--;
+ 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;
}
-int llapi_find(char *path, struct find_param *param)
+static int cb_get_mdt_index(char *path, DIR *parent, DIR *d, void *data,
+ cfs_dirent_t *de)
{
- char *buf;
- int ret, len = strlen(path);
+ struct find_param *param = (struct find_param *)data;
+ int ret = 0;
+ int mdtidx;
- if (len > PATH_MAX) {
- llapi_err(LLAPI_MSG_ERROR, "%s: Path name '%s' is too long",
- __FUNCTION__, path);
- return -EINVAL;
- }
+ LASSERT(parent != NULL || d != NULL);
- buf = (char *)malloc(PATH_MAX + 1);
- if (!buf)
- return -ENOMEM;
+ 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;
+ }
+ }
- ret = common_param_init(param);
if (ret) {
- free(buf);
+ 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;
}
- param->depth = 0;
+ if (param->quiet)
+ llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%s MDT index: %d\n",
+ path, mdtidx);
- strncpy(buf, path, PATH_MAX + 1);
- ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, cb_find_init,
- cb_common_fini, param, NULL);
+out:
+ /* Do not get down anymore? */
+ if (param->depth == param->maxdepth)
+ return 1;
- find_param_fini(param);
- free(buf);
- return ret < 0 ? ret : 0;
+ param->depth++;
+ return 0;
}
static int cb_getstripe(char *path, DIR *parent, DIR *d, void *data,
LASSERT(parent != NULL || d != NULL);
- /* Prepare odb. */
- if (!param->got_uuids) {
+ if (param->obduuid) {
+ param->quiet = 1;
ret = setup_obd_uuid(d ? d : parent, path, param);
if (ret)
return ret;
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 && !param->quiet)
+ 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?",
- __FUNCTION__, path);
+ __func__, path);
} else if (errno == ENOENT) {
llapi_err(LLAPI_MSG_WARN,
"warning: %s: %s does not exist",
- __FUNCTION__, path);
+ __func__, path);
goto out;
} else {
llapi_err(LLAPI_MSG_ERROR,
"error: %s: %s failed for %s",
- __FUNCTION__, d ? "LL_IOC_LOV_GETSTRIPE" :
+ __func__, d ? "LL_IOC_LOV_GETSTRIPE" :
"IOC_MDC_GETFILESTRIPE", path);
}
return ret;
}
- llapi_lov_dump_user_lmm(param, path, d ? 1 : 0);
+ 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)
int llapi_getstripe(char *path, struct find_param *param)
{
- char *buf;
- int ret = 0, len = strlen(path);
-
- if (len > PATH_MAX) {
- llapi_err(LLAPI_MSG_ERROR,
- "%s: Path name '%s' is too long",
- __FUNCTION__, path);
- return -EINVAL;
- }
-
- buf = (char *)malloc(PATH_MAX + 1);
- if (!buf)
- return -ENOMEM;
-
- ret = common_param_init(param);
- if (ret) {
- free(buf);
- return ret;
- }
-
- param->depth = 0;
-
- strncpy(buf, path, PATH_MAX + 1);
- ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, cb_getstripe,
- cb_common_fini, param, NULL);
- find_param_fini(param);
- free(buf);
- return ret < 0 ? ret : 0;
+ 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,
if (fd < 0) {
rc = errno ? -errno : -EBADF;
llapi_err(LLAPI_MSG_ERROR, "error: %s: opening '%s'",
- __FUNCTION__, path);
+ __func__, path);
return rc;
}
rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
} else if (errno == ENOENT) {
llapi_err(LLAPI_MSG_ERROR,
"warning: %s: %s does not exist",
- __FUNCTION__, path);
+ __func__, path);
rc = 0;
} else if (errno != EISDIR) {
rc = errno;
int llapi_quotachown(char *path, int flag)
{
struct find_param param;
- char *buf;
- int ret = 0, len = strlen(path);
-
- if (len > PATH_MAX) {
- llapi_err(LLAPI_MSG_ERROR, "%s: Path name '%s' is too long",
- __FUNCTION__, path);
- return -EINVAL;
- }
-
- buf = (char *)malloc(PATH_MAX + 1);
- if (!buf)
- return -ENOMEM;
memset(¶m, 0, sizeof(param));
param.recursive = 1;
param.verbose = 0;
param.quiet = 1;
- ret = common_param_init(¶m);
- if (ret)
- goto out;
-
- strncpy(buf, path, PATH_MAX + 1);
- ret = llapi_semantic_traverse(buf, PATH_MAX + 1, NULL, cb_quotachown,
- NULL, ¶m, NULL);
-out:
- find_param_fini(¶m);
- free(buf);
- return ret;
+ return param_callback(path, cb_quotachown, NULL, ¶m);
}
#include <pwd.h>
/* Print mdtname 'name' into 'buf' using 'format'. Add -MDT0000 if needed.
* format must have %s%s, buf must be > 16
+ * Eg: if name = "lustre-MDT0000", "lustre", or "lustre-MDT0000_UUID"
+ * then buf = "lustre-MDT0000"
*/
static int get_mdtname(char *name, char *format, char *buf)
{
return sprintf(buf, format, name, suffix);
}
+/** ioctl on filsystem root, with mdtindex sent as data
+ * \param mdtname path, fsname, or mdtname (lutre-MDT0004)
+ * \param mdtidxp pointer to integer within data to be filled in with the
+ * mdt index (0 if no mdt is specified). NULL won't be filled.
+ */
+static int root_ioctl(const char *mdtname, int opc, void *data, int *mdtidxp,
+ int want_error)
+{
+ char fsname[20];
+ char *ptr;
+ int fd, index, rc;
+
+ /* Take path, fsname, or MDTname. Assume MDT0000 in the former cases.
+ Open root and parse mdt index. */
+ if (mdtname[0] == '/') {
+ index = 0;
+ rc = get_root_path(WANT_FD | want_error, NULL, &fd,
+ (char *)mdtname, -1);
+ } else {
+ if (get_mdtname((char *)mdtname, "%s%s", fsname) < 0)
+ return -EINVAL;
+ ptr = fsname + strlen(fsname) - 8;
+ *ptr = '\0';
+ index = strtol(ptr + 4, NULL, 10);
+ rc = get_root_path(WANT_FD | want_error, fsname, &fd, NULL, -1);
+ }
+ if (rc < 0) {
+ if (want_error)
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "Can't open %s: %d\n", mdtname, rc);
+ return rc;
+ }
+
+ if (mdtidxp)
+ *mdtidxp = index;
+
+ rc = ioctl(fd, opc, data);
+ if (rc && want_error)
+ llapi_err(LLAPI_MSG_ERROR, "ioctl %d err %d", opc, rc);
+
+ close(fd);
+ return rc;
+}
+
/****** Changelog API ********/
+
+static int changelog_ioctl(const char *mdtname, int opc, int id,
+ long long recno, int flags)
+{
+ struct ioc_changelog data;
+ int *idx;
+
+ data.icc_id = id;
+ data.icc_recno = recno;
+ data.icc_flags = flags;
+ idx = (int *)(&data.icc_mdtindex);
+
+ return root_ioctl(mdtname, opc, &data, idx, WANT_ERROR);
+}
+
#define CHANGELOG_PRIV_MAGIC 0xCA8E1080
struct changelog_private {
int magic;
- int fd;
int flags;
+ lustre_kernelcomm kuc;
+ char *buf;
};
/** Start reading from a changelog
* @param priv Opaque private control structure
- * @param flags Start flags (e.g. follow)
+ * @param flags Start flags (e.g. CHANGELOG_FLAG_BLOCK)
* @param device Report changes recorded on this MDT
* @param startrec Report changes beginning with this record number
+ * (just call llapi_changelog_fini when done; don't need an endrec)
*/
int llapi_changelog_start(void **priv, int flags, const char *device,
long long startrec)
{
struct changelog_private *cp;
- char path[256];
- char mdtname[20];
- int rc, fd;
-
- if (device[0] == '/')
- rc = get_root_path(WANT_FSNAME, mdtname, NULL, (char *)device);
- else
- strncpy(mdtname, device, sizeof(mdtname));
-
- /* Use either the mdd changelog (preferred) or a client mdc changelog */
- if (get_mdtname(mdtname,
- "/proc/fs/lustre/md[cd]/%s%s{,-mdc-*}/changelog",
- path) < 0)
- return -EINVAL;
- rc = first_match(path, path);
- if (rc)
- return rc;
-
- if ((fd = open(path, O_RDONLY)) < 0) {
- llapi_err(LLAPI_MSG_ERROR, "error: can't open |%s|\n", path);
- return -errno;
- }
-
- rc = lseek(fd, (off_t)startrec, SEEK_SET);
- if (rc < 0) {
- llapi_err(LLAPI_MSG_ERROR, "can't seek rc=%d\n", rc);
- return -errno;
- }
+ int rc;
+ /* Set up the receiver control struct */
cp = malloc(sizeof(*cp));
- if (cp == NULL) {
- close(fd);
+ if (cp == NULL)
return -ENOMEM;
+
+ cp->buf = malloc(CR_MAXSIZE);
+ if (cp->buf == NULL) {
+ rc = -ENOMEM;
+ goto out_free;
}
cp->magic = CHANGELOG_PRIV_MAGIC;
- cp->fd = fd;
cp->flags = flags;
+
+ /* Set up the receiver */
+ rc = libcfs_ukuc_start(&cp->kuc, 0 /* no group registration */);
+ if (rc < 0)
+ goto out_free;
+
*priv = cp;
+ /* Tell the kernel to start sending */
+ rc = changelog_ioctl(device, OBD_IOC_CHANGELOG_SEND, cp->kuc.lk_wfd,
+ startrec, flags);
+ /* Only the kernel reference keeps the write side open */
+ close(cp->kuc.lk_wfd);
+ cp->kuc.lk_wfd = 0;
+ if (rc < 0) {
+ /* frees and clears priv */
+ llapi_changelog_fini(priv);
+ return rc;
+ }
+
return 0;
+
+out_free:
+ if (cp->buf)
+ free(cp->buf);
+ free(cp);
+ return rc;
}
/** Finish reading from a changelog */
if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
return -EINVAL;
- close(cp->fd);
+ libcfs_ukuc_stop(&cp->kuc);
+ free(cp->buf);
free(cp);
*priv = NULL;
return 0;
}
-static int pollwait(int fd) {
- struct pollfd pfds[1];
- int rc;
-
- pfds[0].fd = fd;
- pfds[0].events = POLLIN;
- rc = poll(pfds, 1, -1);
- return rc < 0 ? -errno : rc;
-}
-
/** Read the next changelog entry
* @param priv Opaque private control structure
* @param rech Changelog record handle; record will be allocated here
int llapi_changelog_recv(void *priv, struct changelog_rec **rech)
{
struct changelog_private *cp = (struct changelog_private *)priv;
- struct changelog_rec rec, *recp;
+ struct kuc_hdr *kuch;
int rc = 0;
if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
if (rech == NULL)
return -EINVAL;
-readrec:
- /* Read in the rec to get the namelen */
- rc = read(cp->fd, &rec, sizeof(rec));
+repeat:
+ rc = libcfs_ukuc_msg_get(&cp->kuc, cp->buf, CR_MAXSIZE,
+ KUC_TRANSPORT_CHANGELOG);
if (rc < 0)
- return -errno;
- if (rc == 0) {
- if (cp->flags && CHANGELOG_FLAG_FOLLOW) {
- rc = pollwait(cp->fd);
- if (rc < 0)
- return rc;
- goto readrec;
- }
- return 1;
+ return rc;
+
+ kuch = (struct kuc_hdr *)cp->buf;
+ if ((kuch->kuc_transport != KUC_TRANSPORT_CHANGELOG) ||
+ ((kuch->kuc_msgtype != CL_RECORD) &&
+ (kuch->kuc_msgtype != CL_EOF))) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "Unknown changelog message type %d:%d\n",
+ kuch->kuc_transport, kuch->kuc_msgtype);
+ rc = -EPROTO;
+ goto out_free;
}
- recp = malloc(sizeof(rec) + rec.cr_namelen);
- if (recp == NULL)
- return -ENOMEM;
- memcpy(recp, &rec, sizeof(rec));
- rc = read(cp->fd, recp->cr_name, rec.cr_namelen);
- if (rc < 0) {
- free(recp);
- llapi_err(LLAPI_MSG_ERROR, "Can't read entire filename");
- return -errno;
+ if (kuch->kuc_msgtype == CL_EOF) {
+ if (cp->flags & CHANGELOG_FLAG_FOLLOW) {
+ /* Ignore EOFs */
+ goto repeat;
+ } else {
+ rc = 1;
+ goto out_free;
+ }
}
- *rech = recp;
+ /* Our message is a changelog_rec */
+ *rech = (struct changelog_rec *)(kuch + 1);
+
return 0;
+
+out_free:
+ *rech = NULL;
+ return rc;
}
/** Release the changelog record when done with it. */
int llapi_changelog_free(struct changelog_rec **rech)
{
- if (*rech)
- free(*rech);
*rech = NULL;
return 0;
}
int llapi_changelog_clear(const char *mdtname, const char *idstr,
long long endrec)
{
- struct ioc_changelog_clear data;
- char fsname[17];
- char *ptr;
- int id, fd, index, rc;
+ int id;
if (endrec < 0) {
llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
return -EINVAL;
}
- /* Take path, fsname, or MDTNAME. Assume MDT0000 in the former cases */
- if (mdtname[0] == '/') {
- index = 0;
- fd = open(mdtname, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
- rc = fd < 0 ? -errno : 0;
- } else {
- if (get_mdtname((char *)mdtname, "%s%s", fsname) < 0)
- return -EINVAL;
- ptr = fsname + strlen(fsname) - 8;
- *ptr = '\0';
- index = strtol(ptr + 4, NULL, 10);
- rc = get_root_path(WANT_FD, fsname, &fd, NULL);
- }
- if (rc < 0) {
- llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
- "Can't open %s: %d\n", mdtname, rc);
- return rc;
- }
-
- data.icc_mdtindex = index;
- data.icc_id = id;
- data.icc_recno = endrec;
- rc = ioctl(fd, OBD_IOC_CHANGELOG_CLEAR, &data);
- if (rc)
- llapi_err(LLAPI_MSG_ERROR, "ioctl err %d", rc);
-
- close(fd);
- return rc;
+ return changelog_ioctl(mdtname, OBD_IOC_CHANGELOG_CLEAR, id, endrec, 0);
}
int llapi_fid2path(const char *device, const char *fidstr, char *buf,
if (device[0] == '/') {
strcpy(path, device);
} else {
- rc = get_root_path(WANT_PATH, (char *)device, NULL, path);
+ rc = get_root_path(WANT_PATH | WANT_ERROR, (char *)device,
+ NULL, path, -1);
if (rc < 0)
return rc;
}
return rc;
}
+static int path2fid_from_lma(const char *path, lustre_fid *fid)
+{
+ char buf[512];
+ struct lustre_mdt_attrs *lma;
+ int rc;
+
+ rc = lgetxattr(path, XATTR_NAME_LMA, buf, sizeof(buf));
+ if (rc < 0)
+ return -errno;
+ lma = (struct lustre_mdt_attrs *)buf;
+ fid_le_to_cpu(fid, &lma->lma_self_fid);
+ return 0;
+}
+
int llapi_path2fid(const char *path, lustre_fid *fid)
{
int fd, rc;
- fd = open(path, O_RDONLY);
- if (fd < 0)
+ memset(fid, 0, sizeof(*fid));
+ fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
+ if (fd < 0) {
+ if (errno == ELOOP) /* symbolic link */
+ return path2fid_from_lma(path, fid);
return -errno;
+ }
- rc = ioctl(fd, LL_IOC_PATH2FID, fid);
+ rc = ioctl(fd, LL_IOC_PATH2FID, fid) < 0 ? -errno : 0;
+ if (rc == -EINVAL) /* char special device */
+ rc = path2fid_from_lma(path, fid);
close(fd);
return rc;
#define CT_PRIV_MAGIC 0xC0BE2001
struct copytool_private {
int magic;
- lustre_netlink lnl;
- int archive_num_count;
- int archive_nums[0];
+ char *buf;
+ char *fsname;
+ lustre_kernelcomm kuc;
+ __u32 archives;
};
#include <libcfs/libcfs.h>
/** Register a copytool
- * @param priv Opaque private control structure
+ * @param[out] priv Opaque private control structure
+ * @param fsname Lustre filesystem
* @param flags Open flags, currently unused (e.g. O_NONBLOCK)
- * @param archive_nums Which archive numbers this copytool is responsible for
+ * @param archive_count
+ * @param archives Which archive numbers this copytool is responsible for
*/
-int llapi_copytool_start(void **priv, int flags, int archive_num_count,
- int *archive_nums)
+int llapi_copytool_start(void **priv, char *fsname, int flags,
+ int archive_count, int *archives)
{
struct copytool_private *ct;
int rc;
- if (archive_num_count > 0 && archive_nums == NULL) {
+ if (archive_count > 0 && archives == NULL) {
llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
"NULL archive numbers");
return -EINVAL;
}
- ct = malloc(sizeof(*ct) +
- archive_num_count * sizeof(ct->archive_nums[0]));
+ ct = malloc(sizeof(*ct));
if (ct == NULL)
return -ENOMEM;
+ ct->buf = malloc(HAL_MAXSIZE);
+ ct->fsname = malloc(strlen(fsname) + 1);
+ if (ct->buf == NULL || ct->fsname == NULL) {
+ rc = -ENOMEM;
+ goto out_err;
+ }
+ strcpy(ct->fsname, fsname);
ct->magic = CT_PRIV_MAGIC;
- ct->archive_num_count = archive_num_count;
- if (ct->archive_num_count > 0)
- memcpy(ct->archive_nums, archive_nums, archive_num_count *
- sizeof(ct->archive_nums[0]));
+ ct->archives = 0;
+ for (rc = 0; rc < archive_count; rc++) {
+ if (archives[rc] > sizeof(ct->archives)) {
+ llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
+ "Maximum of %d archives supported",
+ sizeof(ct->archives));
+ goto out_err;
+ }
+ ct->archives |= 1 << archives[rc];
+ }
+ /* special case: if no archives specified, default to archive #0. */
+ if (ct->archives == 0)
+ ct->archives = 1;
- rc = libcfs_ulnl_start(&ct->lnl, LNL_GRP_HSM);
+ rc = libcfs_ukuc_start(&ct->kuc, KUC_GRP_HSM);
+ if (rc < 0)
+ goto out_err;
+
+ /* Storing archive(s) in lk_data; see mdc_ioc_hsm_ct_start */
+ ct->kuc.lk_data = ct->archives;
+ rc = root_ioctl(ct->fsname, LL_IOC_HSM_CT_START, &(ct->kuc), NULL,
+ WANT_ERROR);
+ /* Only the kernel reference keeps the write side open */
+ close(ct->kuc.lk_wfd);
+ ct->kuc.lk_wfd = 0;
if (rc < 0)
goto out_err;
return 0;
out_err:
+ if (ct->buf)
+ free(ct->buf);
+ if (ct->fsname)
+ free(ct->fsname);
free(ct);
return rc;
}
if (!ct || (ct->magic != CT_PRIV_MAGIC))
return -EINVAL;
- libcfs_ulnl_stop(&ct->lnl);
+ /* Tell the kernel to stop sending us messages */
+ ct->kuc.lk_flags = LK_FLG_STOP;
+ root_ioctl(ct->fsname, LL_IOC_HSM_CT_START, &(ct->kuc), NULL, 0);
+
+ /* Shut down the kernelcomms */
+ libcfs_ukuc_stop(&ct->kuc);
+
+ free(ct->buf);
+ free(ct->fsname);
free(ct);
*priv = NULL;
return 0;
int llapi_copytool_recv(void *priv, struct hsm_action_list **halh, int *msgsize)
{
struct copytool_private *ct = (struct copytool_private *)priv;
- struct lnl_hdr *lnlh;
+ struct kuc_hdr *kuch;
struct hsm_action_list *hal;
int rc = 0;
if (halh == NULL || msgsize == NULL)
return -EINVAL;
- rc = libcfs_ulnl_msg_get(&ct->lnl, HAL_MAXSIZE,
- LNL_TRANSPORT_HSM, &lnlh);
+ rc = libcfs_ukuc_msg_get(&ct->kuc, ct->buf, HAL_MAXSIZE,
+ KUC_TRANSPORT_HSM);
if (rc < 0)
return rc;
/* Handle generic messages */
- if (lnlh->lnl_transport == LNL_TRANSPORT_GENERIC &&
- lnlh->lnl_msgtype == LNL_MSG_SHUTDOWN) {
+ kuch = (struct kuc_hdr *)ct->buf;
+ if (kuch->kuc_transport == KUC_TRANSPORT_GENERIC &&
+ kuch->kuc_msgtype == KUC_MSG_SHUTDOWN) {
rc = -ESHUTDOWN;
goto out_free;
}
- if (lnlh->lnl_transport != LNL_TRANSPORT_HSM ||
- lnlh->lnl_msgtype != HMT_ACTION_LIST) {
+ if (kuch->kuc_transport != KUC_TRANSPORT_HSM ||
+ kuch->kuc_msgtype != HMT_ACTION_LIST) {
llapi_err(LLAPI_MSG_ERROR | LLAPI_MSG_NO_ERRNO,
"Unknown HSM message type %d:%d\n",
- lnlh->lnl_transport, lnlh->lnl_msgtype);
+ kuch->kuc_transport, kuch->kuc_msgtype);
rc = -EPROTO;
goto out_free;
}
/* Our message is an hsm_action_list */
- hal = (struct hsm_action_list *)(lnlh + 1);
+ hal = (struct hsm_action_list *)(kuch + 1);
/* Check that we have registered for this archive # */
- for (rc = 0; rc < ct->archive_num_count; rc++) {
- if (hal->hal_archive_num == ct->archive_nums[rc])
- break;
- }
- if (rc >= ct->archive_num_count) {
- CDEBUG(D_INFO, "This copytool does not service archive #%d, "
- "ignoring this request.\n", hal->hal_archive_num);
+ if (((1 << hal->hal_archive_num) & ct->archives) == 0) {
+ llapi_err(LLAPI_MSG_INFO | LLAPI_MSG_NO_ERRNO,
+ "Ignoring request for archive #%d (bitmask %#x)\n",
+ hal->hal_archive_num, ct->archives);
rc = 0;
goto out_free;
}
*halh = hal;
- *msgsize = lnlh->lnl_msglen - sizeof(*lnlh);
+ *msgsize = kuch->kuc_msglen - sizeof(*kuch);
return 0;
out_free:
- libcfs_ulnl_msg_free(&lnlh);
*halh = NULL;
*msgsize = 0;
return rc;
/** Release the action list when done with it. */
int llapi_copytool_free(struct hsm_action_list **hal)
{
- if (*hal) {
- struct lnl_hdr *lnlh = (struct lnl_hdr *)*hal - 1;
- libcfs_ulnl_msg_free(&lnlh);
- }
*hal = NULL;
return 0;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff