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Illumos 5518 - Memory leaks in libzfs import implementation
5518 Memory leaks in libzfs import implementation
Reviewed by: Dan Fields <dan.fields@nexenta.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Serghei Samsi <sscdvp@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>
References:
https://www.illumos.org/issues/5518
https://github.com/illumos/illumos-gate/commit/078266a
Porting notes:
- One hunk of this change was already applied independently in
commit 4def05f.
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Marcel Telka
Brian Behlendorf
parent
519129ff4e
commit
0fdd8d6482
@ -19,9 +19,9 @@
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* CDDL HEADER END
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*/
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/*
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* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2012 by Delphix. All rights reserved.
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* Copyright 2014 Nexenta Systems, Inc. All rights reserved.
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*/
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/*
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@ -203,8 +203,10 @@ fix_paths(nvlist_t *nv, name_entry_t *names)
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if ((devid = get_devid(best->ne_name)) == NULL) {
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(void) nvlist_remove_all(nv, ZPOOL_CONFIG_DEVID);
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} else {
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if (nvlist_add_string(nv, ZPOOL_CONFIG_DEVID, devid) != 0)
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if (nvlist_add_string(nv, ZPOOL_CONFIG_DEVID, devid) != 0) {
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devid_str_free(devid);
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return (-1);
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}
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devid_str_free(devid);
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}
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@ -675,8 +677,10 @@ get_configs(libzfs_handle_t *hdl, pool_list_t *pl, boolean_t active_ok)
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nvlist_add_uint64(holey,
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ZPOOL_CONFIG_ID, c) != 0 ||
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nvlist_add_uint64(holey,
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ZPOOL_CONFIG_GUID, 0ULL) != 0)
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ZPOOL_CONFIG_GUID, 0ULL) != 0) {
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nvlist_free(holey);
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goto nomem;
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}
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child[c] = holey;
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}
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}
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@ -1295,7 +1299,6 @@ static nvlist_t *
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zpool_find_import_impl(libzfs_handle_t *hdl, importargs_t *iarg)
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{
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int i, dirs = iarg->paths;
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DIR *dirp = NULL;
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struct dirent64 *dp;
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char path[MAXPATHLEN];
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char *end, **dir = iarg->path;
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@ -1336,6 +1339,8 @@ zpool_find_import_impl(libzfs_handle_t *hdl, importargs_t *iarg)
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taskq_t *t;
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char *rdsk;
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int dfd;
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boolean_t config_failed = B_FALSE;
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DIR *dirp;
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/* use realpath to normalize the path */
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if (realpath(dir[i], path) == 0) {
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@ -1366,6 +1371,8 @@ zpool_find_import_impl(libzfs_handle_t *hdl, importargs_t *iarg)
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if ((dfd = open64(rdsk, O_RDONLY)) < 0 ||
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(dirp = fdopendir(dfd)) == NULL) {
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if (dfd >= 0)
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(void) close(dfd);
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zfs_error_aux(hdl, strerror(errno));
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(void) zfs_error_fmt(hdl, EZFS_BADPATH,
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dgettext(TEXT_DOMAIN, "cannot open '%s'"),
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@ -1417,7 +1424,7 @@ zpool_find_import_impl(libzfs_handle_t *hdl, importargs_t *iarg)
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cookie = NULL;
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while ((slice = avl_destroy_nodes(&slice_cache,
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&cookie)) != NULL) {
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if (slice->rn_config != NULL) {
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if (slice->rn_config != NULL && !config_failed) {
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nvlist_t *config = slice->rn_config;
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boolean_t matched = B_TRUE;
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@ -1438,14 +1445,16 @@ zpool_find_import_impl(libzfs_handle_t *hdl, importargs_t *iarg)
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}
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if (!matched) {
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nvlist_free(config);
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config = NULL;
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continue;
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} else {
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/*
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* use the non-raw path for the config
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*/
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(void) strlcpy(end, slice->rn_name,
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pathleft);
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if (add_config(hdl, &pools, path, i+1,
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slice->rn_num_labels, config) != 0)
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config_failed = B_TRUE;
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}
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/* use the non-raw path for the config */
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(void) strlcpy(end, slice->rn_name, pathleft);
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if (add_config(hdl, &pools, path, i+1,
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slice->rn_num_labels, config))
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goto error;
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}
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free(slice->rn_name);
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free(slice);
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@ -1453,7 +1462,9 @@ zpool_find_import_impl(libzfs_handle_t *hdl, importargs_t *iarg)
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avl_destroy(&slice_cache);
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(void) closedir(dirp);
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dirp = NULL;
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if (config_failed)
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goto error;
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}
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#ifdef HAVE_LIBBLKID
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@ -1479,14 +1490,10 @@ error:
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for (ne = pools.names; ne != NULL; ne = nenext) {
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nenext = ne->ne_next;
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if (ne->ne_name)
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free(ne->ne_name);
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free(ne->ne_name);
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free(ne);
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}
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if (dirp)
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(void) closedir(dirp);
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return (ret);
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}
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@ -1844,9 +1851,9 @@ zpool_in_use(libzfs_handle_t *hdl, int fd, pool_state_t *state, char **namestr,
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cb.cb_type = ZPOOL_CONFIG_SPARES;
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if (zpool_iter(hdl, find_aux, &cb) == 1) {
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name = (char *)zpool_get_name(cb.cb_zhp);
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ret = TRUE;
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ret = B_TRUE;
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} else {
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ret = FALSE;
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ret = B_FALSE;
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}
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break;
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@ -1860,9 +1867,9 @@ zpool_in_use(libzfs_handle_t *hdl, int fd, pool_state_t *state, char **namestr,
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cb.cb_type = ZPOOL_CONFIG_L2CACHE;
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if (zpool_iter(hdl, find_aux, &cb) == 1) {
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name = (char *)zpool_get_name(cb.cb_zhp);
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ret = TRUE;
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ret = B_TRUE;
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} else {
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ret = FALSE;
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ret = B_FALSE;
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}
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break;
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@ -20,8 +20,8 @@
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*/
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/*
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* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
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* Copyright (c) 2011, 2014 by Delphix. All rights reserved.
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*/
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@ -1783,7 +1783,7 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
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thename = origname;
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}
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if (props) {
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if (props != NULL) {
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uint64_t version;
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prop_flags_t flags = { .create = B_FALSE, .import = B_TRUE };
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@ -1791,12 +1791,13 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
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&version) == 0);
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if ((props = zpool_valid_proplist(hdl, origname,
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props, version, flags, errbuf)) == NULL) {
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props, version, flags, errbuf)) == NULL)
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return (-1);
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} else if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) {
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if (zcmd_write_src_nvlist(hdl, &zc, props) != 0) {
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nvlist_free(props);
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return (-1);
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}
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nvlist_free(props);
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}
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(void) strlcpy(zc.zc_name, thename, sizeof (zc.zc_name));
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@ -1805,11 +1806,11 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
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&zc.zc_guid) == 0);
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if (zcmd_write_conf_nvlist(hdl, &zc, config) != 0) {
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nvlist_free(props);
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zcmd_free_nvlists(&zc);
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return (-1);
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}
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if (zcmd_alloc_dst_nvlist(hdl, &zc, zc.zc_nvlist_conf_size * 2) != 0) {
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nvlist_free(props);
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zcmd_free_nvlists(&zc);
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return (-1);
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}
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@ -1825,6 +1826,9 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
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error = errno;
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(void) zcmd_read_dst_nvlist(hdl, &zc, &nv);
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zcmd_free_nvlists(&zc);
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zpool_get_rewind_policy(config, &policy);
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if (error) {
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@ -1936,9 +1940,6 @@ zpool_import_props(libzfs_handle_t *hdl, nvlist_t *config, const char *newname,
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return (0);
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}
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zcmd_free_nvlists(&zc);
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nvlist_free(props);
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return (ret);
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}
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@ -3335,8 +3336,10 @@ devid_to_path(char *devid_str)
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if (ret != 0)
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return (NULL);
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if ((path = strdup(list[0].devname)) == NULL)
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return (NULL);
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/*
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* In a case the strdup() fails, we will just return NULL below.
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*/
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path = strdup(list[0].devname);
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devid_free_nmlist(list);
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