module/zfs/zcp_set.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * This file and its contents are supplied under the terms of the
   5  * Common Development and Distribution License ("CDDL"), version 1.0.
   6  * You may only use this file in accordance with the terms of version
   7  * 1.0 of the CDDL.
   8  *
   9  * A full copy of the text of the CDDL should have accompanied this
  10  * source.  A copy of the CDDL is also available via the Internet at
  11  * http://www.illumos.org/license/CDDL.
  12  *
  13  * CDDL HEADER END
  14  */
  15
  16 /*
  17  * Copyright (c) 2016 by Delphix. All rights reserved.
  18  * Copyrigh 2020 Joyent, Inc.
  19  */
  20
  21 #include <sys/lua/lua.h>
  22 #include <sys/lua/lualib.h>
  23 #include <sys/lua/lauxlib.h>
  24
  25 #include <sys/dsl_prop.h>
  26 #include <sys/dsl_dir.h>
  27 #include <sys/dsl_synctask.h>
  28 #include <sys/dsl_dataset.h>
  29 #include <sys/zcp.h>
  30 #include <sys/zcp_set.h>
  31 #include <sys/zcp_iter.h>
  32 #include <sys/zcp_global.h>
  33 #include <sys/zvol.h>
  34
  35 #include <zfs_prop.h>
  36
  37 static void
  38 zcp_set_user_prop(lua_State *state, dsl_pool_t *dp, const char *dsname,
  39     const char *prop_name, const char *prop_val, dmu_tx_t *tx)
  40 {
  41         dsl_dataset_t *ds = zcp_dataset_hold(state, dp, dsname, FTAG);
  42         if (ds == NULL)
  43                 return; /* not reached; zcp_dataset_hold() longjmp'd */
  44
  45         nvlist_t *nvl = fnvlist_alloc();
  46         fnvlist_add_string(nvl, prop_name, prop_val);
  47
  48         dsl_props_set_sync_impl(ds, ZPROP_SRC_LOCAL, nvl, tx);
  49
  50         fnvlist_free(nvl);
  51         dsl_dataset_rele(ds, FTAG);
  52 }
  53
  54 int
  55 zcp_set_prop_check(void *arg, dmu_tx_t *tx)
  56 {
  57         zcp_set_prop_arg_t *args = arg;
  58         const char *prop_name = args->prop;
  59         dsl_props_set_arg_t dpsa = {
  60                 .dpsa_dsname = args->dsname,
  61                 .dpsa_source = ZPROP_SRC_LOCAL,
  62         };
  63         nvlist_t *nvl = NULL;
  64         int ret = 0;
  65
  66         /*
  67          * Only user properties are currently supported. When non-user
  68          * properties are supported, we will want to use
  69          * zfs_valid_proplist() to verify the properties.
  70          */
  71         if (!zfs_prop_user(prop_name)) {
  72                 return (EINVAL);
  73         }
  74
  75         nvl = fnvlist_alloc();
  76         fnvlist_add_string(nvl, args->prop, args->val);
  77         dpsa.dpsa_props = nvl;
  78
  79         ret = dsl_props_set_check(&dpsa, tx);
  80         nvlist_free(nvl);
  81
  82         return (ret);
  83 }
  84
  85 void
  86 zcp_set_prop_sync(void *arg, dmu_tx_t *tx)
  87 {
  88         zcp_set_prop_arg_t *args = arg;
  89         zcp_run_info_t *ri = zcp_run_info(args->state);
  90         dsl_pool_t *dp = ri->zri_pool;
  91
  92         const char *dsname = args->dsname;
  93         const char *prop_name = args->prop;
  94         const char *prop_val = args->val;
  95
  96         if (zfs_prop_user(prop_name)) {
  97                 zcp_set_user_prop(args->state, dp, dsname, prop_name,
  98                     prop_val, tx);
  99         }
 100 }