/*
* Creates snapshots.
*
* The keys in the snaps nvlist are the snapshots to be created.
* They must all be in the same pool.
*
* The props nvlist is properties to set. Currently only user properties
* are supported. { user:prop_name -> string value }
*
* The returned results nvlist will have an entry for each snapshot that failed.
* The value will be the (int32) error code.
*
* The return value will be 0 if all snapshots were created, otherwise it will
* be the errno of a (unspecified) snapshot that failed.
*/
int
lzc_snapshot(nvlist_t *snaps, nvlist_t *props, nvlist_t **errlist)
{
nvpair_t *elem;
nvlist_t *args;
int error;
char pool[MAXNAMELEN];
*errlist = NULL;
/* determine the pool name */
elem = nvlist_next_nvpair(snaps, NULL);
if (elem == NULL)
return (0);
(void) strlcpy(pool, nvpair_name(elem), sizeof (pool));
pool[strcspn(pool, "/@")] = '\0';
args = fnvlist_alloc();
fnvlist_add_nvlist(args, "snaps", snaps);
if (props != NULL)
fnvlist_add_nvlist(args, "props", props);
error = lzc_ioctl(ZFS_IOC_SNAPSHOT, pool, args, errlist);
nvlist_free(args);
return (error);
}
int
lzc_change_key(const char *fsname, uint64_t crypt_cmd, nvlist_t *props,
uint8_t *wkeydata, uint_t wkeylen)
{
int error;
nvlist_t *ioc_args = fnvlist_alloc();
nvlist_t *hidden_args = NULL;
fnvlist_add_uint64(ioc_args, "crypt_cmd", crypt_cmd);
if (wkeydata != NULL) {
hidden_args = fnvlist_alloc();
fnvlist_add_uint8_array(hidden_args, "wkeydata", wkeydata,
wkeylen);
fnvlist_add_nvlist(ioc_args, ZPOOL_HIDDEN_ARGS, hidden_args);
}
if (props != NULL)
fnvlist_add_nvlist(ioc_args, "props", props);
error = lzc_ioctl(ZFS_IOC_CHANGE_KEY, fsname, ioc_args, NULL);
nvlist_free(hidden_args);
nvlist_free(ioc_args);
return (error);
}
static void
test_recv_new(const char *dataset, int fd)
{
dmu_replay_record_t drr = { 0 };
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *props = fnvlist_alloc();
char snapshot[MAXNAMELEN + 32];
ssize_t count;
int cleanup_fd = open(ZFS_DEV, O_RDWR);
(void) snprintf(snapshot, sizeof (snapshot), "%s@replicant", dataset);
count = pread(fd, &drr, sizeof (drr), 0);
if (count != sizeof (drr)) {
(void) fprintf(stderr, "could not read stream: %s\n",
strerror(errno));
}
fnvlist_add_string(required, "snapname", snapshot);
fnvlist_add_byte_array(required, "begin_record", (uchar_t *)&drr,
sizeof (drr));
fnvlist_add_int32(required, "input_fd", fd);
fnvlist_add_string(props, "org.openzfs:launch", "September 17th, 2013");
fnvlist_add_nvlist(optional, "localprops", props);
fnvlist_add_boolean(optional, "force");
fnvlist_add_int32(optional, "cleanup_fd", cleanup_fd);
/*
* TODO - Resumable receive is harder to set up. So we currently
* ignore testing for one.
*/
#if 0
fnvlist_add_nvlist(optional, "props", recvdprops);
fnvlist_add_string(optional, "origin", origin);
fnvlist_add_boolean(optional, "resumable");
fnvlist_add_uint64(optional, "action_handle", *action_handle);
#endif
IOC_INPUT_TEST(ZFS_IOC_RECV_NEW, dataset, required, optional, EBADE);
nvlist_free(props);
nvlist_free(optional);
nvlist_free(required);
(void) close(cleanup_fd);
}
static void
test_channel_program(const char *pool)
{
const char *program =
"arg = ...\n"
"argv = arg[\"argv\"]\n"
"return argv[1]";
char *const argv[1] = { "Hello World!" };
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *args = fnvlist_alloc();
fnvlist_add_string(required, "program", program);
fnvlist_add_string_array(args, "argv", argv, 1);
fnvlist_add_nvlist(required, "arg", args);
fnvlist_add_boolean_value(optional, "sync", B_TRUE);
fnvlist_add_uint64(optional, "instrlimit", 1000 * 1000);
fnvlist_add_uint64(optional, "memlimit", 8192 * 1024);
IOC_INPUT_TEST(ZFS_IOC_CHANNEL_PROGRAM, pool, required, optional, 0);
nvlist_free(args);
nvlist_free(optional);
nvlist_free(required);
}
/*
* Sigh. Inside a local zone, we don't have access to /etc/zfs/zpool.cache,
* and we don't want to allow the local zone to see all the pools anyway.
* So we have to invent the ZFS_IOC_CONFIG ioctl to grab the configuration
* information for all pool visible within the zone.
*/
nvlist_t *
spa_all_configs(uint64_t *generation)
{
nvlist_t *pools;
spa_t *spa = NULL;
if (*generation == spa_config_generation)
return (NULL);
pools = fnvlist_alloc();
mutex_enter(&spa_namespace_lock);
while ((spa = spa_next(spa)) != NULL) {
if (INGLOBALZONE(curproc) ||
zone_dataset_visible(spa_name(spa), NULL)) {
mutex_enter(&spa->spa_props_lock);
fnvlist_add_nvlist(pools, spa_name(spa),
spa->spa_config);
mutex_exit(&spa->spa_props_lock);
}
}
*generation = spa_config_generation;
mutex_exit(&spa_namespace_lock);
return (pools);
}
/*
* Destroys snapshots.
*
* The keys in the snaps nvlist are the snapshots to be destroyed.
* They must all be in the same pool.
*
* Snapshots that do not exist will be silently ignored.
*
* If 'defer' is not set, and a snapshot has user holds or clones, the
* destroy operation will fail and none of the snapshots will be
* destroyed.
*
* If 'defer' is set, and a snapshot has user holds or clones, it will be
* marked for deferred destruction, and will be destroyed when the last hold
* or clone is removed/destroyed.
*
* The return value will be 0 if all snapshots were destroyed (or marked for
* later destruction if 'defer' is set) or didn't exist to begin with.
*
* Otherwise the return value will be the errno of a (unspecified) snapshot
* that failed, no snapshots will be destroyed, and the errlist will have an
* entry for each snapshot that failed. The value in the errlist will be
* the (int32) error code.
*/
int
lzc_destroy_snaps(nvlist_t *snaps, boolean_t defer, nvlist_t **errlist)
{
nvpair_t *elem;
nvlist_t *args;
int error;
char pool[MAXNAMELEN];
/* determine the pool name */
elem = nvlist_next_nvpair(snaps, NULL);
if (elem == NULL)
return (0);
(void) strlcpy(pool, nvpair_name(elem), sizeof (pool));
pool[strcspn(pool, "/@")] = '\0';
args = fnvlist_alloc();
fnvlist_add_nvlist(args, "snaps", snaps);
if (defer)
fnvlist_add_boolean(args, "defer");
error = lzc_ioctl(ZFS_IOC_DESTROY_SNAPS, pool, args, errlist);
nvlist_free(args);
return (error);
}
/*
* Create a redaction bookmark named bookname by redacting snapshot with respect
* to all the snapshots in snapnv.
*/
int
lzc_redact(const char *snapshot, const char *bookname, nvlist_t *snapnv)
{
nvlist_t *args = fnvlist_alloc();
fnvlist_add_string(args, "bookname", bookname);
fnvlist_add_nvlist(args, "snapnv", snapnv);
int error = lzc_ioctl(ZFS_IOC_REDACT, snapshot, args, NULL);
fnvlist_free(args);
return (error);
}
static void
test_snapshot(const char *pool, const char *snapshot)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *snaps = fnvlist_alloc();
nvlist_t *props = fnvlist_alloc();
fnvlist_add_boolean(snaps, snapshot);
fnvlist_add_nvlist(required, "snaps", snaps);
fnvlist_add_string(props, "org.openzfs:launch", "September 17th, 2013");
fnvlist_add_nvlist(optional, "props", props);
IOC_INPUT_TEST(ZFS_IOC_SNAPSHOT, pool, required, optional, 0);
nvlist_free(props);
nvlist_free(snaps);
nvlist_free(optional);
nvlist_free(required);
}
int
lzc_create(const char *fsname, dmu_objset_type_t type, nvlist_t *props)
{
int error;
nvlist_t *args = fnvlist_alloc();
fnvlist_add_int32(args, "type", type);
if (props != NULL)
fnvlist_add_nvlist(args, "props", props);
error = lzc_ioctl(ZFS_IOC_CREATE, fsname, args, NULL);
nvlist_free(args);
return (error);
}
int
dsl_get_bookmarks_impl(dsl_dataset_t *ds, nvlist_t *props, nvlist_t *outnvl)
{
int err = 0;
zap_cursor_t zc;
zap_attribute_t attr;
dsl_pool_t *dp = ds->ds_dir->dd_pool;
uint64_t bmark_zapobj = ds->ds_bookmarks;
if (bmark_zapobj == 0)
return (0);
for (zap_cursor_init(&zc, dp->dp_meta_objset, bmark_zapobj);
zap_cursor_retrieve(&zc, &attr) == 0;
zap_cursor_advance(&zc)) {
nvlist_t *out_props;
char *bmark_name = attr.za_name;
zfs_bookmark_phys_t bmark_phys = { 0 };
err = dsl_dataset_bmark_lookup(ds, bmark_name, &bmark_phys);
ASSERT3U(err, !=, ENOENT);
if (err != 0)
break;
out_props = fnvlist_alloc();
if (nvlist_exists(props,
zfs_prop_to_name(ZFS_PROP_GUID))) {
dsl_prop_nvlist_add_uint64(out_props,
ZFS_PROP_GUID, bmark_phys.zbm_guid);
}
if (nvlist_exists(props,
zfs_prop_to_name(ZFS_PROP_CREATETXG))) {
dsl_prop_nvlist_add_uint64(out_props,
ZFS_PROP_CREATETXG, bmark_phys.zbm_creation_txg);
}
if (nvlist_exists(props,
zfs_prop_to_name(ZFS_PROP_CREATION))) {
dsl_prop_nvlist_add_uint64(out_props,
ZFS_PROP_CREATION, bmark_phys.zbm_creation_time);
}
if (nvlist_exists(props,
zfs_prop_to_name(ZFS_PROP_IVSET_GUID))) {
dsl_prop_nvlist_add_uint64(out_props,
ZFS_PROP_IVSET_GUID, bmark_phys.zbm_ivset_guid);
}
fnvlist_add_nvlist(outnvl, bmark_name, out_props);
fnvlist_free(out_props);
}
zap_cursor_fini(&zc);
return (err);
}
int
lzc_clone(const char *fsname, const char *origin,
nvlist_t *props)
{
int error;
nvlist_t *args = fnvlist_alloc();
fnvlist_add_string(args, "origin", origin);
if (props != NULL)
fnvlist_add_nvlist(args, "props", props);
error = lzc_ioctl(ZFS_IOC_CLONE, fsname, args, NULL);
nvlist_free(args);
return (error);
}
static void
test_destroy_snaps(const char *pool, const char *snapshot)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *snaps = fnvlist_alloc();
fnvlist_add_boolean(snaps, snapshot);
fnvlist_add_nvlist(required, "snaps", snaps);
IOC_INPUT_TEST(ZFS_IOC_DESTROY_SNAPS, pool, required, NULL, 0);
nvlist_free(snaps);
nvlist_free(required);
}
static void
test_release(const char *pool, const char *snapshot)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *release = fnvlist_alloc();
fnvlist_add_boolean(release, "libzfs_check_hold");
fnvlist_add_nvlist(required, snapshot, release);
IOC_INPUT_TEST_WILD(ZFS_IOC_RELEASE, pool, required, NULL, 0);
nvlist_free(release);
nvlist_free(required);
}
static void
dsl_dataset_user_hold_sync_one_impl(nvlist_t *tmpholds, dsl_dataset_t *ds,
const char *htag, minor_t minor, uint64_t now, dmu_tx_t *tx)
{
dsl_pool_t *dp = ds->ds_dir->dd_pool;
objset_t *mos = dp->dp_meta_objset;
uint64_t zapobj;
ASSERT(RRW_WRITE_HELD(&dp->dp_config_rwlock));
if (ds->ds_phys->ds_userrefs_obj == 0) {
/*
* This is the first user hold for this dataset. Create
* the userrefs zap object.
*/
dmu_buf_will_dirty(ds->ds_dbuf, tx);
zapobj = ds->ds_phys->ds_userrefs_obj =
zap_create(mos, DMU_OT_USERREFS, DMU_OT_NONE, 0, tx);
} else {
zapobj = ds->ds_phys->ds_userrefs_obj;
}
ds->ds_userrefs++;
VERIFY0(zap_add(mos, zapobj, htag, 8, 1, &now, tx));
if (minor != 0) {
char name[MAXNAMELEN];
nvlist_t *tags;
VERIFY0(dsl_pool_user_hold(dp, ds->ds_object,
htag, now, tx));
(void) snprintf(name, sizeof (name), "%llx",
(u_longlong_t)ds->ds_object);
if (nvlist_lookup_nvlist(tmpholds, name, &tags) != 0) {
VERIFY0(nvlist_alloc(&tags, NV_UNIQUE_NAME,
KM_PUSHPAGE));
fnvlist_add_boolean(tags, htag);
fnvlist_add_nvlist(tmpholds, name, tags);
fnvlist_free(tags);
} else {
fnvlist_add_boolean(tags, htag);
}
}
spa_history_log_internal_ds(ds, "hold", tx,
"tag=%s temp=%d refs=%llu",
htag, minor != 0, ds->ds_userrefs);
}
int
lzc_create(const char *fsname, enum lzc_dataset_type type, nvlist_t *props,
uint8_t *wkeydata, uint_t wkeylen)
{
int error;
nvlist_t *hidden_args = NULL;
nvlist_t *args = fnvlist_alloc();
fnvlist_add_int32(args, "type", (dmu_objset_type_t)type);
if (props != NULL)
fnvlist_add_nvlist(args, "props", props);
if (wkeydata != NULL) {
hidden_args = fnvlist_alloc();
fnvlist_add_uint8_array(hidden_args, "wkeydata", wkeydata,
wkeylen);
fnvlist_add_nvlist(args, ZPOOL_HIDDEN_ARGS, hidden_args);
}
error = lzc_ioctl(ZFS_IOC_CREATE, fsname, args, NULL);
nvlist_free(hidden_args);
nvlist_free(args);
return (error);
}
static void
test_vdev_initialize(const char *pool)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *vdev_guids = fnvlist_alloc();
fnvlist_add_uint64(vdev_guids, "path", 0xdeadbeefdeadbeef);
fnvlist_add_uint64(required, ZPOOL_INITIALIZE_COMMAND,
POOL_INITIALIZE_DO);
fnvlist_add_nvlist(required, ZPOOL_INITIALIZE_VDEVS, vdev_guids);
IOC_INPUT_TEST(ZFS_IOC_POOL_INITIALIZE, pool, required, NULL, EINVAL);
nvlist_free(vdev_guids);
nvlist_free(required);
}
/*
* Convert a value from the given index into the lua stack to an nvpair, adding
* it to an nvlist with the given key.
*
* Values are converted as follows:
*
* string -> string
* number -> int64
* boolean -> boolean
* nil -> boolean (no value)
*
* Lua tables are converted to nvlists and then inserted. The table's keys
* are converted to strings then used as keys in the nvlist to store each table
* element. Keys are converted as follows:
*
* string -> no change
* number -> "%lld"
* boolean -> "true" | "false"
* nil -> error
*
* In the case of a key collision, an error is thrown.
*
* If an error is encountered, a nonzero error code is returned, and an error
* string will be pushed onto the Lua stack.
*/
static int
zcp_lua_to_nvlist_impl(lua_State *state, int index, nvlist_t *nvl,
const char *key, int depth)
{
/*
* Verify that we have enough remaining space in the lua stack to parse
* a key-value pair and push an error.
*/
if (!lua_checkstack(state, 3)) {
(void) lua_pushstring(state, "Lua stack overflow");
return (1);
}
index = lua_absindex(state, index);
switch (lua_type(state, index)) {
case LUA_TNIL:
fnvlist_add_boolean(nvl, key);
break;
case LUA_TBOOLEAN:
fnvlist_add_boolean_value(nvl, key,
lua_toboolean(state, index));
break;
case LUA_TNUMBER:
fnvlist_add_int64(nvl, key, lua_tonumber(state, index));
break;
case LUA_TSTRING:
fnvlist_add_string(nvl, key, lua_tostring(state, index));
break;
case LUA_TTABLE: {
nvlist_t *value_nvl = zcp_table_to_nvlist(state, index, depth);
if (value_nvl == NULL)
return (EINVAL);
fnvlist_add_nvlist(nvl, key, value_nvl);
fnvlist_free(value_nvl);
break;
}
default:
(void) lua_pushfstring(state,
"Invalid value type '%s' for key '%s'",
lua_typename(state, lua_type(state, index)), key);
return (EINVAL);
}
return (0);
}
static void
test_load_key(const char *dataset)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *hidden = fnvlist_alloc();
uint8_t keydata[WRAPPING_KEY_LEN] = {0};
fnvlist_add_uint8_array(hidden, "wkeydata", keydata, sizeof (keydata));
fnvlist_add_nvlist(required, "hidden_args", hidden);
fnvlist_add_boolean(optional, "noop");
IOC_INPUT_TEST(ZFS_IOC_LOAD_KEY, dataset, required, optional, EINVAL);
nvlist_free(hidden);
nvlist_free(optional);
nvlist_free(required);
}
static void
test_hold(const char *pool, const char *snapshot)
{
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *holds = fnvlist_alloc();
fnvlist_add_string(holds, snapshot, "libzfs_check_hold");
fnvlist_add_nvlist(required, "holds", holds);
fnvlist_add_int32(optional, "cleanup_fd", zfs_fd);
IOC_INPUT_TEST(ZFS_IOC_HOLD, pool, required, optional, 0);
nvlist_free(holds);
nvlist_free(optional);
nvlist_free(required);
}
static int
lzc_channel_program_impl(const char *pool, const char *program, boolean_t sync,
uint64_t instrlimit, uint64_t memlimit, nvlist_t *argnvl, nvlist_t **outnvl)
{
int error;
nvlist_t *args;
args = fnvlist_alloc();
fnvlist_add_string(args, ZCP_ARG_PROGRAM, program);
fnvlist_add_nvlist(args, ZCP_ARG_ARGLIST, argnvl);
fnvlist_add_boolean_value(args, ZCP_ARG_SYNC, sync);
fnvlist_add_uint64(args, ZCP_ARG_INSTRLIMIT, instrlimit);
fnvlist_add_uint64(args, ZCP_ARG_MEMLIMIT, memlimit);
error = lzc_ioctl(ZFS_IOC_CHANNEL_PROGRAM, pool, args, outnvl);
fnvlist_free(args);
return (error);
}
static void
test_create(const char *pool)
{
char dataset[MAXNAMELEN + 32];
(void) snprintf(dataset, sizeof (dataset), "%s/create-fs", pool);
nvlist_t *required = fnvlist_alloc();
nvlist_t *optional = fnvlist_alloc();
nvlist_t *props = fnvlist_alloc();
fnvlist_add_int32(required, "type", DMU_OST_ZFS);
fnvlist_add_uint64(props, "recordsize", 8192);
fnvlist_add_nvlist(optional, "props", props);
IOC_INPUT_TEST(ZFS_IOC_CREATE, dataset, required, optional, 0);
nvlist_free(required);
nvlist_free(optional);
}
/*
* Performs key management functions
*
* crypto_cmd should be a value from zfs_ioc_crypto_cmd_t. If the command
* specifies to load or change a wrapping key, the key should be specified in
* the hidden_args nvlist so that it is not logged
*/
int
lzc_load_key(const char *fsname, boolean_t noop, uint8_t *wkeydata,
uint_t wkeylen)
{
int error;
nvlist_t *ioc_args;
nvlist_t *hidden_args;
if (wkeydata == NULL)
return (EINVAL);
ioc_args = fnvlist_alloc();
hidden_args = fnvlist_alloc();
fnvlist_add_uint8_array(hidden_args, "wkeydata", wkeydata, wkeylen);
fnvlist_add_nvlist(ioc_args, ZPOOL_HIDDEN_ARGS, hidden_args);
if (noop)
fnvlist_add_boolean(ioc_args, "noop");
error = lzc_ioctl(ZFS_IOC_LOAD_KEY, fsname, ioc_args, NULL);
nvlist_free(hidden_args);
nvlist_free(ioc_args);
return (error);
}
/*
* Create "user holds" on snapshots. If there is a hold on a snapshot,
* the snapshot can not be destroyed. (However, it can be marked for deletion
* by lzc_destroy_snaps(defer=B_TRUE).)
*
* The keys in the nvlist are snapshot names.
* The snapshots must all be in the same pool.
* The value is the name of the hold (string type).
*
* If cleanup_fd is not -1, it must be the result of open("/dev/zfs", O_EXCL).
* In this case, when the cleanup_fd is closed (including on process
* termination), the holds will be released. If the system is shut down
* uncleanly, the holds will be released when the pool is next opened
* or imported.
*
* Holds for snapshots which don't exist will be skipped and have an entry
* added to errlist, but will not cause an overall failure.
*
* The return value will be 0 if all holds, for snapshots that existed,
* were succesfully created.
*
* Otherwise the return value will be the errno of a (unspecified) hold that
* failed and no holds will be created.
*
* In all cases the errlist will have an entry for each hold that failed
* (name = snapshot), with its value being the error code (int32).
*/
int
lzc_hold(nvlist_t *holds, int cleanup_fd, nvlist_t **errlist)
{
char pool[MAXNAMELEN];
nvlist_t *args;
nvpair_t *elem;
int error;
/* determine the pool name */
elem = nvlist_next_nvpair(holds, NULL);
if (elem == NULL)
return (0);
(void) strlcpy(pool, nvpair_name(elem), sizeof (pool));
pool[strcspn(pool, "/@")] = '\0';
args = fnvlist_alloc();
fnvlist_add_nvlist(args, "holds", holds);
if (cleanup_fd != -1)
fnvlist_add_int32(args, "cleanup_fd", cleanup_fd);
error = lzc_ioctl(ZFS_IOC_HOLD, pool, args, errlist);
nvlist_free(args);
return (error);
}
/*
* Generate the pool's configuration based on the current in-core state.
*
* We infer whether to generate a complete config or just one top-level config
* based on whether vd is the root vdev.
*/
nvlist_t *
spa_config_generate(spa_t *spa, vdev_t *vd, uint64_t txg, int getstats)
{
nvlist_t *config, *nvroot;
vdev_t *rvd = spa->spa_root_vdev;
unsigned long hostid = 0;
boolean_t locked = B_FALSE;
uint64_t split_guid;
char *pool_name;
int config_gen_flags = 0;
if (vd == NULL) {
vd = rvd;
locked = B_TRUE;
spa_config_enter(spa, SCL_CONFIG | SCL_STATE, FTAG, RW_READER);
}
ASSERT(spa_config_held(spa, SCL_CONFIG | SCL_STATE, RW_READER) ==
(SCL_CONFIG | SCL_STATE));
/*
* If txg is -1, report the current value of spa->spa_config_txg.
*/
if (txg == -1ULL)
txg = spa->spa_config_txg;
/*
* Originally, users had to handle spa namespace collisions by either
* exporting the already imported pool or by specifying a new name for
* the pool with a conflicting name. In the case of root pools from
* virtual guests, neither approach to collision resolution is
* reasonable. This is addressed by extending the new name syntax with
* an option to specify that the new name is temporary. When specified,
* ZFS_IMPORT_TEMP_NAME will be set in spa->spa_import_flags to tell us
* to use the previous name, which we do below.
*/
if (spa->spa_import_flags & ZFS_IMPORT_TEMP_NAME) {
VERIFY0(nvlist_lookup_string(spa->spa_config,
ZPOOL_CONFIG_POOL_NAME, &pool_name));
} else
pool_name = spa_name(spa);
config = fnvlist_alloc();
fnvlist_add_uint64(config, ZPOOL_CONFIG_VERSION, spa_version(spa));
fnvlist_add_string(config, ZPOOL_CONFIG_POOL_NAME, pool_name);
fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_STATE, spa_state(spa));
fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_TXG, txg);
fnvlist_add_uint64(config, ZPOOL_CONFIG_POOL_GUID, spa_guid(spa));
fnvlist_add_uint64(config, ZPOOL_CONFIG_ERRATA, spa->spa_errata);
if (spa->spa_comment != NULL)
fnvlist_add_string(config, ZPOOL_CONFIG_COMMENT,
spa->spa_comment);
#ifdef _KERNEL
hostid = zone_get_hostid(NULL);
#else /* _KERNEL */
/*
* We're emulating the system's hostid in userland, so we can't use
* zone_get_hostid().
*/
(void) ddi_strtoul(hw_serial, NULL, 10, &hostid);
#endif /* _KERNEL */
if (hostid != 0)
fnvlist_add_uint64(config, ZPOOL_CONFIG_HOSTID, hostid);
fnvlist_add_string(config, ZPOOL_CONFIG_HOSTNAME, utsname()->nodename);
if (vd != rvd) {
fnvlist_add_uint64(config, ZPOOL_CONFIG_TOP_GUID,
vd->vdev_top->vdev_guid);
fnvlist_add_uint64(config, ZPOOL_CONFIG_GUID,
vd->vdev_guid);
if (vd->vdev_isspare)
fnvlist_add_uint64(config,
ZPOOL_CONFIG_IS_SPARE, 1ULL);
if (vd->vdev_islog)
fnvlist_add_uint64(config,
ZPOOL_CONFIG_IS_LOG, 1ULL);
vd = vd->vdev_top; /* label contains top config */
} else {
/*
* Only add the (potentially large) split information
* in the mos config, and not in the vdev labels
*/
if (spa->spa_config_splitting != NULL)
fnvlist_add_nvlist(config, ZPOOL_CONFIG_SPLIT,
spa->spa_config_splitting);
fnvlist_add_boolean(config, ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS);
config_gen_flags |= VDEV_CONFIG_MOS;
}
/*
* Add the top-level config. We even add this on pools which
* don't support holes in the namespace.
*/
vdev_top_config_generate(spa, config);
/*
* If we're splitting, record the original pool's guid.
*/
if (spa->spa_config_splitting != NULL &&
nvlist_lookup_uint64(spa->spa_config_splitting,
ZPOOL_CONFIG_SPLIT_GUID, &split_guid) == 0) {
fnvlist_add_uint64(config, ZPOOL_CONFIG_SPLIT_GUID, split_guid);
}
nvroot = vdev_config_generate(spa, vd, getstats, config_gen_flags);
fnvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, nvroot);
nvlist_free(nvroot);
/*
* Store what's necessary for reading the MOS in the label.
*/
fnvlist_add_nvlist(config, ZPOOL_CONFIG_FEATURES_FOR_READ,
spa->spa_label_features);
if (getstats && spa_load_state(spa) == SPA_LOAD_NONE) {
ddt_histogram_t *ddh;
ddt_stat_t *dds;
ddt_object_t *ddo;
ddh = kmem_zalloc(sizeof (ddt_histogram_t), KM_SLEEP);
ddt_get_dedup_histogram(spa, ddh);
fnvlist_add_uint64_array(config,
ZPOOL_CONFIG_DDT_HISTOGRAM,
(uint64_t *)ddh, sizeof (*ddh) / sizeof (uint64_t));
kmem_free(ddh, sizeof (ddt_histogram_t));
ddo = kmem_zalloc(sizeof (ddt_object_t), KM_SLEEP);
ddt_get_dedup_object_stats(spa, ddo);
fnvlist_add_uint64_array(config,
ZPOOL_CONFIG_DDT_OBJ_STATS,
(uint64_t *)ddo, sizeof (*ddo) / sizeof (uint64_t));
kmem_free(ddo, sizeof (ddt_object_t));
dds = kmem_zalloc(sizeof (ddt_stat_t), KM_SLEEP);
ddt_get_dedup_stats(spa, dds);
fnvlist_add_uint64_array(config,
ZPOOL_CONFIG_DDT_STATS,
(uint64_t *)dds, sizeof (*dds) / sizeof (uint64_t));
kmem_free(dds, sizeof (ddt_stat_t));
}
if (locked)
spa_config_exit(spa, SCL_CONFIG | SCL_STATE, FTAG);
return (config);
}
static int
lzc_ioctl(zfs_ioc_t ioc, const char *name,
nvlist_t *source, nvlist_t **resultp)
{
zfs_cmd_t zc = { 0 };
int error = 0;
char *packed;
#ifdef __FreeBSD__
nvlist_t *oldsource;
#endif
size_t size;
ASSERT3S(g_refcount, >, 0);
(void) strlcpy(zc.zc_name, name, sizeof (zc.zc_name));
#ifdef __FreeBSD__
if (zfs_ioctl_version == ZFS_IOCVER_UNDEF)
zfs_ioctl_version = get_zfs_ioctl_version();
if (zfs_ioctl_version < ZFS_IOCVER_LZC) {
oldsource = source;
error = lzc_compat_pre(&zc, &ioc, &source);
if (error)
return (error);
}
#endif
packed = fnvlist_pack(source, &size);
zc.zc_nvlist_src = (uint64_t)(uintptr_t)packed;
zc.zc_nvlist_src_size = size;
if (resultp != NULL) {
*resultp = NULL;
zc.zc_nvlist_dst_size = MAX(size * 2, 128 * 1024);
zc.zc_nvlist_dst = (uint64_t)(uintptr_t)
malloc(zc.zc_nvlist_dst_size);
#ifdef illumos
if (zc.zc_nvlist_dst == NULL) {
#else
if (zc.zc_nvlist_dst == 0) {
#endif
error = ENOMEM;
goto out;
}
}
while (ioctl(g_fd, ioc, &zc) != 0) {
if (errno == ENOMEM && resultp != NULL) {
free((void *)(uintptr_t)zc.zc_nvlist_dst);
zc.zc_nvlist_dst_size *= 2;
zc.zc_nvlist_dst = (uint64_t)(uintptr_t)
malloc(zc.zc_nvlist_dst_size);
#ifdef illumos
if (zc.zc_nvlist_dst == NULL) {
#else
if (zc.zc_nvlist_dst == 0) {
#endif
error = ENOMEM;
goto out;
}
} else {
error = errno;
break;
}
}
#ifdef __FreeBSD__
if (zfs_ioctl_version < ZFS_IOCVER_LZC)
lzc_compat_post(&zc, ioc);
#endif
if (zc.zc_nvlist_dst_filled) {
*resultp = fnvlist_unpack((void *)(uintptr_t)zc.zc_nvlist_dst,
zc.zc_nvlist_dst_size);
}
#ifdef __FreeBSD__
if (zfs_ioctl_version < ZFS_IOCVER_LZC)
lzc_compat_outnvl(&zc, ioc, resultp);
#endif
out:
#ifdef __FreeBSD__
if (zfs_ioctl_version < ZFS_IOCVER_LZC) {
if (source != oldsource)
nvlist_free(source);
source = oldsource;
}
#endif
fnvlist_pack_free(packed, size);
free((void *)(uintptr_t)zc.zc_nvlist_dst);
return (error);
}
int
lzc_create(const char *fsname, enum lzc_dataset_type type, nvlist_t *props)
{
int error;
nvlist_t *args = fnvlist_alloc();
fnvlist_add_int32(args, "type", (dmu_objset_type_t)type);
if (props != NULL)
fnvlist_add_nvlist(args, "props", props);
error = lzc_ioctl(ZFS_IOC_CREATE, fsname, args, NULL);
nvlist_free(args);
return (error);
}
/*
* Linux adds ZFS_IOC_RECV_NEW for resumable and raw streams and preserves the
* legacy ZFS_IOC_RECV user/kernel interface. The new interface supports all
* stream options but is currently only used for resumable streams. This way
* updated user space utilities will interoperate with older kernel modules.
*
* Non-Linux OpenZFS platforms have opted to modify the legacy interface.
*/
static int
recv_impl(const char *snapname, nvlist_t *recvdprops, nvlist_t *localprops,
const char *origin, boolean_t force, boolean_t resumable, boolean_t raw,
int input_fd, const dmu_replay_record_t *begin_record, int cleanup_fd,
uint64_t *read_bytes, uint64_t *errflags, uint64_t *action_handle,
nvlist_t **errors)
{
dmu_replay_record_t drr;
char fsname[MAXPATHLEN];
char *atp;
int error;
ASSERT3S(g_refcount, >, 0);
VERIFY3S(g_fd, !=, -1);
/* Set 'fsname' to the name of containing filesystem */
(void) strlcpy(fsname, snapname, sizeof (fsname));
atp = strchr(fsname, '@');
if (atp == NULL)
return (EINVAL);
*atp = '\0';
/* If the fs does not exist, try its parent. */
if (!lzc_exists(fsname)) {
char *slashp = strrchr(fsname, '/');
if (slashp == NULL)
return (ENOENT);
*slashp = '\0';
}
/*
* The begin_record is normally a non-byteswapped BEGIN record.
* For resumable streams it may be set to any non-byteswapped
* dmu_replay_record_t.
*/
if (begin_record == NULL) {
error = recv_read(input_fd, &drr, sizeof (drr));
if (error != 0)
return (error);
} else {
drr = *begin_record;
}
if (resumable || raw) {
nvlist_t *outnvl = NULL;
nvlist_t *innvl = fnvlist_alloc();
fnvlist_add_string(innvl, "snapname", snapname);
if (recvdprops != NULL)
fnvlist_add_nvlist(innvl, "props", recvdprops);
if (localprops != NULL)
fnvlist_add_nvlist(innvl, "localprops", localprops);
if (origin != NULL && strlen(origin))
fnvlist_add_string(innvl, "origin", origin);
fnvlist_add_byte_array(innvl, "begin_record",
(uchar_t *)&drr, sizeof (drr));
fnvlist_add_int32(innvl, "input_fd", input_fd);
if (force)
fnvlist_add_boolean(innvl, "force");
if (resumable)
fnvlist_add_boolean(innvl, "resumable");
if (cleanup_fd >= 0)
fnvlist_add_int32(innvl, "cleanup_fd", cleanup_fd);
if (action_handle != NULL)
fnvlist_add_uint64(innvl, "action_handle",
*action_handle);
error = lzc_ioctl(ZFS_IOC_RECV_NEW, fsname, innvl, &outnvl);
if (error == 0 && read_bytes != NULL)
error = nvlist_lookup_uint64(outnvl, "read_bytes",
read_bytes);
if (error == 0 && errflags != NULL)
error = nvlist_lookup_uint64(outnvl, "error_flags",
errflags);
if (error == 0 && action_handle != NULL)
error = nvlist_lookup_uint64(outnvl, "action_handle",
action_handle);
if (error == 0 && errors != NULL) {
nvlist_t *nvl;
error = nvlist_lookup_nvlist(outnvl, "errors", &nvl);
if (error == 0)
*errors = fnvlist_dup(nvl);
}
fnvlist_free(innvl);
fnvlist_free(outnvl);
} else {
zfs_cmd_t zc = {"\0"};
char *packed = NULL;
size_t size;
ASSERT3S(g_refcount, >, 0);
(void) strlcpy(zc.zc_name, fsname, sizeof (zc.zc_value));
(void) strlcpy(zc.zc_value, snapname, sizeof (zc.zc_value));
if (recvdprops != NULL) {
packed = fnvlist_pack(recvdprops, &size);
zc.zc_nvlist_src = (uint64_t)(uintptr_t)packed;
zc.zc_nvlist_src_size = size;
}
if (localprops != NULL) {
packed = fnvlist_pack(localprops, &size);
zc.zc_nvlist_conf = (uint64_t)(uintptr_t)packed;
zc.zc_nvlist_conf_size = size;
}
if (origin != NULL)
(void) strlcpy(zc.zc_string, origin,
sizeof (zc.zc_string));
ASSERT3S(drr.drr_type, ==, DRR_BEGIN);
zc.zc_begin_record = drr.drr_u.drr_begin;
zc.zc_guid = force;
zc.zc_cookie = input_fd;
zc.zc_cleanup_fd = -1;
zc.zc_action_handle = 0;
if (cleanup_fd >= 0)
zc.zc_cleanup_fd = cleanup_fd;
if (action_handle != NULL)
zc.zc_action_handle = *action_handle;
zc.zc_nvlist_dst_size = 128 * 1024;
zc.zc_nvlist_dst = (uint64_t)(uintptr_t)
malloc(zc.zc_nvlist_dst_size);
error = ioctl(g_fd, ZFS_IOC_RECV, &zc);
if (error != 0) {
error = errno;
} else {
if (read_bytes != NULL)
*read_bytes = zc.zc_cookie;
if (errflags != NULL)
*errflags = zc.zc_obj;
if (action_handle != NULL)
*action_handle = zc.zc_action_handle;
if (errors != NULL)
VERIFY0(nvlist_unpack(
(void *)(uintptr_t)zc.zc_nvlist_dst,
zc.zc_nvlist_dst_size, errors, KM_SLEEP));
}
if (packed != NULL)
fnvlist_pack_free(packed, size);
free((void *)(uintptr_t)zc.zc_nvlist_dst);
}
return (error);
}
static void
run_tests(void)
{
const char *key = "key";
/* Note: maximum nvlist key length is 32KB */
int len = 1024 * 31;
char *bigstring = malloc(len);
for (int i = 0; i < len; i++)
bigstring[i] = 'a' + i % 26;
bigstring[len - 1] = '\0';
nvl = fnvlist_alloc();
fnvlist_add_boolean(nvl, key);
test("boolean", B_TRUE, B_FALSE);
fnvlist_add_boolean_value(nvl, key, B_TRUE);
test("boolean_value", B_FALSE, B_FALSE);
fnvlist_add_byte(nvl, key, 1);
test("byte", B_FALSE, B_FALSE);
fnvlist_add_int8(nvl, key, 1);
test("int8", B_FALSE, B_FALSE);
fnvlist_add_uint8(nvl, key, 1);
test("uint8", B_FALSE, B_FALSE);
fnvlist_add_int16(nvl, key, 1);
test("int16", B_FALSE, B_FALSE);
fnvlist_add_uint16(nvl, key, 1);
test("uint16", B_FALSE, B_FALSE);
fnvlist_add_int32(nvl, key, 1);
test("int32", B_FALSE, B_FALSE);
fnvlist_add_uint32(nvl, key, 1);
test("uint32", B_FALSE, B_FALSE);
fnvlist_add_int64(nvl, key, 1);
test("int64", B_TRUE, B_TRUE);
fnvlist_add_uint64(nvl, key, 1);
test("uint64", B_FALSE, B_FALSE);
fnvlist_add_string(nvl, key, "1");
test("string", B_TRUE, B_TRUE);
{
nvlist_t *val = fnvlist_alloc();
fnvlist_add_string(val, "subkey", "subvalue");
fnvlist_add_nvlist(nvl, key, val);
fnvlist_free(val);
test("nvlist", B_TRUE, B_TRUE);
}
{
boolean_t val[2] = { B_FALSE, B_TRUE };
fnvlist_add_boolean_array(nvl, key, val, 2);
test("boolean_array", B_FALSE, B_FALSE);
}
{
uchar_t val[2] = { 0, 1 };
fnvlist_add_byte_array(nvl, key, val, 2);
test("byte_array", B_FALSE, B_FALSE);
}
{
int8_t val[2] = { 0, 1 };
fnvlist_add_int8_array(nvl, key, val, 2);
test("int8_array", B_FALSE, B_FALSE);
}
{
uint8_t val[2] = { 0, 1 };
fnvlist_add_uint8_array(nvl, key, val, 2);
test("uint8_array", B_FALSE, B_FALSE);
}
{
int16_t val[2] = { 0, 1 };
fnvlist_add_int16_array(nvl, key, val, 2);
test("int16_array", B_FALSE, B_FALSE);
}
{
uint16_t val[2] = { 0, 1 };
fnvlist_add_uint16_array(nvl, key, val, 2);
test("uint16_array", B_FALSE, B_FALSE);
}
{
int32_t val[2] = { 0, 1 };
fnvlist_add_int32_array(nvl, key, val, 2);
test("int32_array", B_FALSE, B_FALSE);
}
{
uint32_t val[2] = { 0, 1 };
fnvlist_add_uint32_array(nvl, key, val, 2);
test("uint32_array", B_FALSE, B_FALSE);
}
{
int64_t val[2] = { 0, 1 };
fnvlist_add_int64_array(nvl, key, val, 2);
test("int64_array", B_TRUE, B_FALSE);
}
{
uint64_t val[2] = { 0, 1 };
fnvlist_add_uint64_array(nvl, key, val, 2);
test("uint64_array", B_FALSE, B_FALSE);
}
{
char *const val[2] = { "0", "1" };
fnvlist_add_string_array(nvl, key, val, 2);
test("string_array", B_TRUE, B_FALSE);
}
{
nvlist_t *val[2];
val[0] = fnvlist_alloc();
fnvlist_add_string(val[0], "subkey", "subvalue");
val[1] = fnvlist_alloc();
fnvlist_add_string(val[1], "subkey2", "subvalue2");
fnvlist_add_nvlist_array(nvl, key, val, 2);
fnvlist_free(val[0]);
fnvlist_free(val[1]);
test("nvlist_array", B_FALSE, B_FALSE);
}
{
fnvlist_add_string(nvl, bigstring, "1");
test("large_key", B_TRUE, B_TRUE);
}
{
fnvlist_add_string(nvl, key, bigstring);
test("large_value", B_TRUE, B_TRUE);
}
{
for (int i = 0; i < 1024; i++) {
char buf[32];
(void) snprintf(buf, sizeof (buf), "key-%u", i);
fnvlist_add_int64(nvl, buf, i);
}
test("many_keys", B_TRUE, B_TRUE);
}
#ifndef __sparc__
{
for (int i = 0; i < 10; i++) {
nvlist_t *newval = fnvlist_alloc();
fnvlist_add_nvlist(newval, "key", nvl);
fnvlist_free(nvl);
nvl = newval;
}
test("deeply_nested_pos", B_TRUE, B_TRUE);
}
{
for (int i = 0; i < 90; i++) {
nvlist_t *newval = fnvlist_alloc();
fnvlist_add_nvlist(newval, "key", nvl);
fnvlist_free(nvl);
nvl = newval;
}
test("deeply_nested_neg", B_FALSE, B_FALSE);
}
#endif
free(bigstring);
fnvlist_free(nvl);
}
/*
* Synchronize pool configuration to disk. This must be called with the
* namespace lock held. Synchronizing the pool cache is typically done after
* the configuration has been synced to the MOS. This exposes a window where
* the MOS config will have been updated but the cache file has not. If
* the system were to crash at that instant then the cached config may not
* contain the correct information to open the pool and an explicit import
* would be required.
*/
void
spa_config_sync(spa_t *target, boolean_t removing, boolean_t postsysevent)
{
spa_config_dirent_t *dp, *tdp;
nvlist_t *nvl;
char *pool_name;
boolean_t ccw_failure;
int error = 0;
ASSERT(MUTEX_HELD(&spa_namespace_lock));
if (rootdir == NULL || !(spa_mode_global & FWRITE))
return;
/*
* Iterate over all cachefiles for the pool, past or present. When the
* cachefile is changed, the new one is pushed onto this list, allowing
* us to update previous cachefiles that no longer contain this pool.
*/
ccw_failure = B_FALSE;
for (dp = list_head(&target->spa_config_list); dp != NULL;
dp = list_next(&target->spa_config_list, dp)) {
spa_t *spa = NULL;
if (dp->scd_path == NULL)
continue;
/*
* Iterate over all pools, adding any matching pools to 'nvl'.
*/
nvl = NULL;
while ((spa = spa_next(spa)) != NULL) {
/*
* Skip over our own pool if we're about to remove
* ourselves from the spa namespace or any pool that
* is readonly. Since we cannot guarantee that a
* readonly pool would successfully import upon reboot,
* we don't allow them to be written to the cache file.
*/
if ((spa == target && removing) ||
!spa_writeable(spa))
continue;
mutex_enter(&spa->spa_props_lock);
tdp = list_head(&spa->spa_config_list);
if (spa->spa_config == NULL ||
tdp == NULL ||
tdp->scd_path == NULL ||
strcmp(tdp->scd_path, dp->scd_path) != 0) {
mutex_exit(&spa->spa_props_lock);
continue;
}
if (nvl == NULL)
nvl = fnvlist_alloc();
if (spa->spa_import_flags & ZFS_IMPORT_TEMP_NAME)
pool_name = fnvlist_lookup_string(
spa->spa_config, ZPOOL_CONFIG_POOL_NAME);
else
pool_name = spa_name(spa);
fnvlist_add_nvlist(nvl, pool_name, spa->spa_config);
mutex_exit(&spa->spa_props_lock);
}
error = spa_config_write(dp, nvl);
if (error != 0)
ccw_failure = B_TRUE;
nvlist_free(nvl);
}
if (ccw_failure) {
/*
* Keep trying so that configuration data is
* written if/when any temporary filesystem
* resource issues are resolved.
*/
if (target->spa_ccw_fail_time == 0) {
zfs_ereport_post(FM_EREPORT_ZFS_CONFIG_CACHE_WRITE,
target, NULL, NULL, 0, 0);
}
target->spa_ccw_fail_time = gethrtime();
spa_async_request(target, SPA_ASYNC_CONFIG_UPDATE);
} else {
/*
* Do not rate limit future attempts to update
* the config cache.
*/
target->spa_ccw_fail_time = 0;
}
/*
* Remove any config entries older than the current one.
*/
dp = list_head(&target->spa_config_list);
while ((tdp = list_next(&target->spa_config_list, dp)) != NULL) {
list_remove(&target->spa_config_list, tdp);
if (tdp->scd_path != NULL)
spa_strfree(tdp->scd_path);
kmem_free(tdp, sizeof (spa_config_dirent_t));
}
spa_config_generation++;
if (postsysevent)
spa_event_notify(target, NULL, ESC_ZFS_CONFIG_SYNC);
}
static int
dsl_dataset_user_release_check_one(dsl_dataset_user_release_arg_t *ddura,
dsl_dataset_t *ds, nvlist_t *holds, const char *snapname)
{
uint64_t zapobj;
nvlist_t *holds_found;
objset_t *mos;
int numholds;
if (!dsl_dataset_is_snapshot(ds))
return (SET_ERROR(EINVAL));
if (nvlist_empty(holds))
return (0);
numholds = 0;
mos = ds->ds_dir->dd_pool->dp_meta_objset;
zapobj = ds->ds_phys->ds_userrefs_obj;
holds_found = fnvlist_alloc();
for (nvpair_t *pair = nvlist_next_nvpair(holds, NULL); pair != NULL;
pair = nvlist_next_nvpair(holds, pair)) {
uint64_t tmp;
int error;
const char *holdname = nvpair_name(pair);
if (zapobj != 0)
error = zap_lookup(mos, zapobj, holdname, 8, 1, &tmp);
else
error = SET_ERROR(ENOENT);
/*
* Non-existent holds are put on the errlist, but don't
* cause an overall failure.
*/
if (error == ENOENT) {
if (ddura->ddura_errlist != NULL) {
char *errtag = kmem_asprintf("%s#%s",
snapname, holdname);
fnvlist_add_int32(ddura->ddura_errlist, errtag,
ENOENT);
strfree(errtag);
}
continue;
}
if (error != 0) {
fnvlist_free(holds_found);
return (error);
}
fnvlist_add_boolean(holds_found, holdname);
numholds++;
}
if (DS_IS_DEFER_DESTROY(ds) && ds->ds_phys->ds_num_children == 1 &&
ds->ds_userrefs == numholds) {
/* we need to destroy the snapshot as well */
if (dsl_dataset_long_held(ds)) {
fnvlist_free(holds_found);
return (SET_ERROR(EBUSY));
}
fnvlist_add_boolean(ddura->ddura_todelete, snapname);
}
if (numholds != 0) {
fnvlist_add_nvlist(ddura->ddura_chkholds, snapname,
holds_found);
}
fnvlist_free(holds_found);
return (0);
}
/*
* Test each ioc for the folowing ioctl input errors:
* ZFS_ERR_IOC_ARG_UNAVAIL an input argument is not supported by kernel
* ZFS_ERR_IOC_ARG_REQUIRED a required input argument is missing
* ZFS_ERR_IOC_ARG_BADTYPE an input argument has an invalid type
*/
static int
lzc_ioctl_test(zfs_ioc_t ioc, const char *name, nvlist_t *required,
nvlist_t *optional, int expected_error, boolean_t wildcard)
{
nvlist_t *input = fnvlist_alloc();
nvlist_t *future = fnvlist_alloc();
int error = 0;
if (required != NULL) {
for (nvpair_t *pair = nvlist_next_nvpair(required, NULL);
pair != NULL; pair = nvlist_next_nvpair(required, pair)) {
fnvlist_add_nvpair(input, pair);
}
}
if (optional != NULL) {
for (nvpair_t *pair = nvlist_next_nvpair(optional, NULL);
pair != NULL; pair = nvlist_next_nvpair(optional, pair)) {
fnvlist_add_nvpair(input, pair);
}
}
/*
* Generic input run with 'optional' nvlist pair
*/
if (!wildcard)
fnvlist_add_nvlist(input, "optional", future);
lzc_ioctl_run(ioc, name, input, expected_error);
if (!wildcard)
fnvlist_remove(input, "optional");
/*
* Bogus input value
*/
if (!wildcard) {
fnvlist_add_string(input, "bogus_input", "bogus");
lzc_ioctl_run(ioc, name, input, ZFS_ERR_IOC_ARG_UNAVAIL);
fnvlist_remove(input, "bogus_input");
}
/*
* Missing required inputs
*/
if (required != NULL) {
nvlist_t *empty = fnvlist_alloc();
lzc_ioctl_run(ioc, name, empty, ZFS_ERR_IOC_ARG_REQUIRED);
nvlist_free(empty);
}
/*
* Wrong nvpair type
*/
if (required != NULL || optional != NULL) {
/*
* switch the type of one of the input pairs
*/
for (nvpair_t *pair = nvlist_next_nvpair(input, NULL);
pair != NULL; pair = nvlist_next_nvpair(input, pair)) {
char pname[MAXNAMELEN];
data_type_t ptype;
strlcpy(pname, nvpair_name(pair), sizeof (pname));
pname[sizeof (pname) - 1] = '\0';
ptype = nvpair_type(pair);
fnvlist_remove_nvpair(input, pair);
switch (ptype) {
case DATA_TYPE_STRING:
fnvlist_add_uint64(input, pname, 42);
break;
default:
fnvlist_add_string(input, pname, "bogus");
break;
}
}
lzc_ioctl_run(ioc, name, input, ZFS_ERR_IOC_ARG_BADTYPE);
}
nvlist_free(future);
nvlist_free(input);
return (error);
}