freebsd-nq/module/zfs/zcp_set.c
Jason King 13b5a4d5c0
Support setting user properties in a channel program
This adds support for setting user properties in a
zfs channel program by adding 'zfs.sync.set_prop'
and 'zfs.check.set_prop' to the ZFS LUA API.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matt Ahrens <matt@delphix.com>
Co-authored-by: Sara Hartse <sara.hartse@delphix.com>
Contributions-by: Jason King <jason.king@joyent.com>
Signed-off-by: Sara Hartse <sara.hartse@delphix.com>
Signed-off-by: Jason King <jason.king@joyent.com>
Closes #9950
2020-02-14 13:41:42 -08:00

101 lines
2.4 KiB
C

/*
* CDDL HEADER START
*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2016 by Delphix. All rights reserved.
* Copyrigh 2020 Joyent, Inc.
*/
#include <sys/lua/lua.h>
#include <sys/lua/lualib.h>
#include <sys/lua/lauxlib.h>
#include <sys/dsl_prop.h>
#include <sys/dsl_dir.h>
#include <sys/dsl_synctask.h>
#include <sys/dsl_dataset.h>
#include <sys/zcp.h>
#include <sys/zcp_set.h>
#include <sys/zcp_iter.h>
#include <sys/zcp_global.h>
#include <sys/zvol.h>
#include <zfs_prop.h>
static void
zcp_set_user_prop(lua_State *state, dsl_pool_t *dp, const char *dsname,
const char *prop_name, const char *prop_val, dmu_tx_t *tx)
{
dsl_dataset_t *ds = zcp_dataset_hold(state, dp, dsname, FTAG);
if (ds == NULL)
return; /* not reached; zcp_dataset_hold() longjmp'd */
nvlist_t *nvl = fnvlist_alloc();
fnvlist_add_string(nvl, prop_name, prop_val);
dsl_props_set_sync_impl(ds, ZPROP_SRC_LOCAL, nvl, tx);
fnvlist_free(nvl);
dsl_dataset_rele(ds, FTAG);
}
int
zcp_set_prop_check(void *arg, dmu_tx_t *tx)
{
zcp_set_prop_arg_t *args = arg;
const char *prop_name = args->prop;
dsl_props_set_arg_t dpsa = {
.dpsa_dsname = args->dsname,
.dpsa_source = ZPROP_SRC_LOCAL,
};
nvlist_t *nvl = NULL;
int ret = 0;
/*
* Only user properties are currently supported. When non-user
* properties are supported, we will want to use
* zfs_valid_proplist() to verify the properties.
*/
if (!zfs_prop_user(prop_name)) {
return (EINVAL);
}
nvl = fnvlist_alloc();
fnvlist_add_string(nvl, args->prop, args->val);
dpsa.dpsa_props = nvl;
ret = dsl_props_set_check(&dpsa, tx);
nvlist_free(nvl);
return (ret);
}
void
zcp_set_prop_sync(void *arg, dmu_tx_t *tx)
{
zcp_set_prop_arg_t *args = arg;
zcp_run_info_t *ri = zcp_run_info(args->state);
dsl_pool_t *dp = ri->zri_pool;
const char *dsname = args->dsname;
const char *prop_name = args->prop;
const char *prop_val = args->val;
if (zfs_prop_user(prop_name)) {
zcp_set_user_prop(args->state, dp, dsname, prop_name,
prop_val, tx);
}
}