1168404Spjd/* 2168404Spjd * CDDL HEADER START 3168404Spjd * 4168404Spjd * The contents of this file are subject to the terms of the 5168404Spjd * Common Development and Distribution License (the "License"). 6168404Spjd * You may not use this file except in compliance with the License. 7168404Spjd * 8168404Spjd * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9168404Spjd * or http://www.opensolaris.org/os/licensing. 10168404Spjd * See the License for the specific language governing permissions 11168404Spjd * and limitations under the License. 12168404Spjd * 13168404Spjd * When distributing Covered Code, include this CDDL HEADER in each 14168404Spjd * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15168404Spjd * If applicable, add the following below this CDDL HEADER, with the 16168404Spjd * fields enclosed by brackets "[]" replaced with your own identifying 17168404Spjd * information: Portions Copyright [yyyy] [name of copyright owner] 18168404Spjd * 19168404Spjd * CDDL HEADER END 20168404Spjd */ 21168404Spjd/* 22219089Spjd * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23269006Sdelphij * Copyright (c) 2012, 2014 by Delphix. All rights reserved. 24168404Spjd */ 25168404Spjd 26219089Spjd#include <sys/zfs_context.h> 27168404Spjd#include <sys/dmu.h> 28168404Spjd#include <sys/dmu_objset.h> 29168404Spjd#include <sys/dmu_tx.h> 30168404Spjd#include <sys/dsl_dataset.h> 31168404Spjd#include <sys/dsl_dir.h> 32168404Spjd#include <sys/dsl_prop.h> 33168404Spjd#include <sys/dsl_synctask.h> 34168404Spjd#include <sys/spa.h> 35168404Spjd#include <sys/zap.h> 36168404Spjd#include <sys/fs/zfs.h> 37168404Spjd 38168404Spjd#include "zfs_prop.h" 39168404Spjd 40219089Spjd#define ZPROP_INHERIT_SUFFIX "$inherit" 41219089Spjd#define ZPROP_RECVD_SUFFIX "$recvd" 42219089Spjd 43168404Spjdstatic int 44219089Spjddodefault(const char *propname, int intsz, int numints, void *buf) 45168404Spjd{ 46168404Spjd zfs_prop_t prop; 47168404Spjd 48185029Spjd /* 49185029Spjd * The setonce properties are read-only, BUT they still 50185029Spjd * have a default value that can be used as the initial 51185029Spjd * value. 52185029Spjd */ 53185029Spjd if ((prop = zfs_name_to_prop(propname)) == ZPROP_INVAL || 54185029Spjd (zfs_prop_readonly(prop) && !zfs_prop_setonce(prop))) 55249195Smm return (SET_ERROR(ENOENT)); 56168404Spjd 57185029Spjd if (zfs_prop_get_type(prop) == PROP_TYPE_STRING) { 58168404Spjd if (intsz != 1) 59249195Smm return (SET_ERROR(EOVERFLOW)); 60185029Spjd (void) strncpy(buf, zfs_prop_default_string(prop), 61219089Spjd numints); 62168404Spjd } else { 63219089Spjd if (intsz != 8 || numints < 1) 64249195Smm return (SET_ERROR(EOVERFLOW)); 65168404Spjd 66168404Spjd *(uint64_t *)buf = zfs_prop_default_numeric(prop); 67168404Spjd } 68168404Spjd 69168404Spjd return (0); 70168404Spjd} 71168404Spjd 72185029Spjdint 73185029Spjddsl_prop_get_dd(dsl_dir_t *dd, const char *propname, 74219089Spjd int intsz, int numints, void *buf, char *setpoint, boolean_t snapshot) 75168404Spjd{ 76168404Spjd int err = ENOENT; 77219089Spjd dsl_dir_t *target = dd; 78185029Spjd objset_t *mos = dd->dd_pool->dp_meta_objset; 79168404Spjd zfs_prop_t prop; 80219089Spjd boolean_t inheritable; 81219089Spjd boolean_t inheriting = B_FALSE; 82219089Spjd char *inheritstr; 83219089Spjd char *recvdstr; 84168404Spjd 85248571Smm ASSERT(dsl_pool_config_held(dd->dd_pool)); 86185029Spjd 87168404Spjd if (setpoint) 88168404Spjd setpoint[0] = '\0'; 89168404Spjd 90168404Spjd prop = zfs_name_to_prop(propname); 91219089Spjd inheritable = (prop == ZPROP_INVAL || zfs_prop_inheritable(prop)); 92219089Spjd inheritstr = kmem_asprintf("%s%s", propname, ZPROP_INHERIT_SUFFIX); 93219089Spjd recvdstr = kmem_asprintf("%s%s", propname, ZPROP_RECVD_SUFFIX); 94168404Spjd 95168404Spjd /* 96219089Spjd * Note: dd may become NULL, therefore we shouldn't dereference it 97219089Spjd * after this loop. 98168404Spjd */ 99168404Spjd for (; dd != NULL; dd = dd->dd_parent) { 100219089Spjd if (dd != target || snapshot) { 101219089Spjd if (!inheritable) 102219089Spjd break; 103219089Spjd inheriting = B_TRUE; 104219089Spjd } 105219089Spjd 106219089Spjd /* Check for a local value. */ 107219089Spjd err = zap_lookup(mos, dd->dd_phys->dd_props_zapobj, propname, 108219089Spjd intsz, numints, buf); 109168404Spjd if (err != ENOENT) { 110219089Spjd if (setpoint != NULL && err == 0) 111168404Spjd dsl_dir_name(dd, setpoint); 112168404Spjd break; 113168404Spjd } 114168404Spjd 115168404Spjd /* 116219089Spjd * Skip the check for a received value if there is an explicit 117219089Spjd * inheritance entry. 118168404Spjd */ 119219089Spjd err = zap_contains(mos, dd->dd_phys->dd_props_zapobj, 120219089Spjd inheritstr); 121219089Spjd if (err != 0 && err != ENOENT) 122168404Spjd break; 123219089Spjd 124219089Spjd if (err == ENOENT) { 125219089Spjd /* Check for a received value. */ 126219089Spjd err = zap_lookup(mos, dd->dd_phys->dd_props_zapobj, 127219089Spjd recvdstr, intsz, numints, buf); 128219089Spjd if (err != ENOENT) { 129219089Spjd if (setpoint != NULL && err == 0) { 130219089Spjd if (inheriting) { 131219089Spjd dsl_dir_name(dd, setpoint); 132219089Spjd } else { 133219089Spjd (void) strcpy(setpoint, 134219089Spjd ZPROP_SOURCE_VAL_RECVD); 135219089Spjd } 136219089Spjd } 137219089Spjd break; 138219089Spjd } 139219089Spjd } 140219089Spjd 141219089Spjd /* 142219089Spjd * If we found an explicit inheritance entry, err is zero even 143219089Spjd * though we haven't yet found the value, so reinitializing err 144219089Spjd * at the end of the loop (instead of at the beginning) ensures 145219089Spjd * that err has a valid post-loop value. 146219089Spjd */ 147249195Smm err = SET_ERROR(ENOENT); 148168404Spjd } 149219089Spjd 150168404Spjd if (err == ENOENT) 151219089Spjd err = dodefault(propname, intsz, numints, buf); 152168404Spjd 153219089Spjd strfree(inheritstr); 154219089Spjd strfree(recvdstr); 155219089Spjd 156168404Spjd return (err); 157168404Spjd} 158168404Spjd 159185029Spjdint 160185029Spjddsl_prop_get_ds(dsl_dataset_t *ds, const char *propname, 161219089Spjd int intsz, int numints, void *buf, char *setpoint) 162185029Spjd{ 163219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 164219089Spjd boolean_t inheritable; 165219089Spjd boolean_t snapshot; 166219089Spjd uint64_t zapobj; 167219089Spjd 168248571Smm ASSERT(dsl_pool_config_held(ds->ds_dir->dd_pool)); 169219089Spjd inheritable = (prop == ZPROP_INVAL || zfs_prop_inheritable(prop)); 170219089Spjd snapshot = (ds->ds_phys != NULL && dsl_dataset_is_snapshot(ds)); 171219089Spjd zapobj = (ds->ds_phys == NULL ? 0 : ds->ds_phys->ds_props_obj); 172185029Spjd 173219089Spjd if (zapobj != 0) { 174219089Spjd objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; 175219089Spjd int err; 176219089Spjd 177219089Spjd ASSERT(snapshot); 178219089Spjd 179219089Spjd /* Check for a local value. */ 180219089Spjd err = zap_lookup(mos, zapobj, propname, intsz, numints, buf); 181185029Spjd if (err != ENOENT) { 182219089Spjd if (setpoint != NULL && err == 0) 183185029Spjd dsl_dataset_name(ds, setpoint); 184185029Spjd return (err); 185185029Spjd } 186219089Spjd 187219089Spjd /* 188219089Spjd * Skip the check for a received value if there is an explicit 189219089Spjd * inheritance entry. 190219089Spjd */ 191219089Spjd if (inheritable) { 192219089Spjd char *inheritstr = kmem_asprintf("%s%s", propname, 193219089Spjd ZPROP_INHERIT_SUFFIX); 194219089Spjd err = zap_contains(mos, zapobj, inheritstr); 195219089Spjd strfree(inheritstr); 196219089Spjd if (err != 0 && err != ENOENT) 197219089Spjd return (err); 198219089Spjd } 199219089Spjd 200219089Spjd if (err == ENOENT) { 201219089Spjd /* Check for a received value. */ 202219089Spjd char *recvdstr = kmem_asprintf("%s%s", propname, 203219089Spjd ZPROP_RECVD_SUFFIX); 204219089Spjd err = zap_lookup(mos, zapobj, recvdstr, 205219089Spjd intsz, numints, buf); 206219089Spjd strfree(recvdstr); 207219089Spjd if (err != ENOENT) { 208219089Spjd if (setpoint != NULL && err == 0) 209219089Spjd (void) strcpy(setpoint, 210219089Spjd ZPROP_SOURCE_VAL_RECVD); 211219089Spjd return (err); 212219089Spjd } 213219089Spjd } 214185029Spjd } 215185029Spjd 216185029Spjd return (dsl_prop_get_dd(ds->ds_dir, propname, 217219089Spjd intsz, numints, buf, setpoint, snapshot)); 218185029Spjd} 219185029Spjd 220168404Spjd/* 221168404Spjd * Register interest in the named property. We'll call the callback 222168404Spjd * once to notify it of the current property value, and again each time 223168404Spjd * the property changes, until this callback is unregistered. 224168404Spjd * 225168404Spjd * Return 0 on success, errno if the prop is not an integer value. 226168404Spjd */ 227168404Spjdint 228168404Spjddsl_prop_register(dsl_dataset_t *ds, const char *propname, 229168404Spjd dsl_prop_changed_cb_t *callback, void *cbarg) 230168404Spjd{ 231168404Spjd dsl_dir_t *dd = ds->ds_dir; 232185029Spjd dsl_pool_t *dp = dd->dd_pool; 233168404Spjd uint64_t value; 234168404Spjd dsl_prop_cb_record_t *cbr; 235168404Spjd int err; 236168404Spjd 237248571Smm ASSERT(dsl_pool_config_held(dp)); 238168404Spjd 239248571Smm err = dsl_prop_get_int_ds(ds, propname, &value); 240248571Smm if (err != 0) 241168404Spjd return (err); 242168404Spjd 243168404Spjd cbr = kmem_alloc(sizeof (dsl_prop_cb_record_t), KM_SLEEP); 244168404Spjd cbr->cbr_ds = ds; 245168404Spjd cbr->cbr_propname = kmem_alloc(strlen(propname)+1, KM_SLEEP); 246168404Spjd (void) strcpy((char *)cbr->cbr_propname, propname); 247168404Spjd cbr->cbr_func = callback; 248168404Spjd cbr->cbr_arg = cbarg; 249168404Spjd mutex_enter(&dd->dd_lock); 250168404Spjd list_insert_head(&dd->dd_prop_cbs, cbr); 251168404Spjd mutex_exit(&dd->dd_lock); 252168404Spjd 253168404Spjd cbr->cbr_func(cbr->cbr_arg, value); 254168404Spjd return (0); 255168404Spjd} 256168404Spjd 257168404Spjdint 258185029Spjddsl_prop_get(const char *dsname, const char *propname, 259168404Spjd int intsz, int numints, void *buf, char *setpoint) 260168404Spjd{ 261248571Smm objset_t *os; 262248571Smm int error; 263168404Spjd 264248571Smm error = dmu_objset_hold(dsname, FTAG, &os); 265248571Smm if (error != 0) 266248571Smm return (error); 267168404Spjd 268248571Smm error = dsl_prop_get_ds(dmu_objset_ds(os), propname, 269248571Smm intsz, numints, buf, setpoint); 270168404Spjd 271248571Smm dmu_objset_rele(os, FTAG); 272248571Smm return (error); 273168404Spjd} 274168404Spjd 275168404Spjd/* 276168404Spjd * Get the current property value. It may have changed by the time this 277168404Spjd * function returns, so it is NOT safe to follow up with 278168404Spjd * dsl_prop_register() and assume that the value has not changed in 279168404Spjd * between. 280168404Spjd * 281168404Spjd * Return 0 on success, ENOENT if ddname is invalid. 282168404Spjd */ 283168404Spjdint 284168404Spjddsl_prop_get_integer(const char *ddname, const char *propname, 285168404Spjd uint64_t *valuep, char *setpoint) 286168404Spjd{ 287168404Spjd return (dsl_prop_get(ddname, propname, 8, 1, valuep, setpoint)); 288168404Spjd} 289168404Spjd 290248571Smmint 291248571Smmdsl_prop_get_int_ds(dsl_dataset_t *ds, const char *propname, 292248571Smm uint64_t *valuep) 293219089Spjd{ 294248571Smm return (dsl_prop_get_ds(ds, propname, 8, 1, valuep, NULL)); 295219089Spjd} 296219089Spjd 297168404Spjd/* 298219089Spjd * Predict the effective value of the given special property if it were set with 299219089Spjd * the given value and source. This is not a general purpose function. It exists 300219089Spjd * only to handle the special requirements of the quota and reservation 301219089Spjd * properties. The fact that these properties are non-inheritable greatly 302219089Spjd * simplifies the prediction logic. 303219089Spjd * 304219089Spjd * Returns 0 on success, a positive error code on failure, or -1 if called with 305219089Spjd * a property not handled by this function. 306219089Spjd */ 307219089Spjdint 308248571Smmdsl_prop_predict(dsl_dir_t *dd, const char *propname, 309248571Smm zprop_source_t source, uint64_t value, uint64_t *newvalp) 310219089Spjd{ 311219089Spjd zfs_prop_t prop = zfs_name_to_prop(propname); 312219089Spjd objset_t *mos; 313219089Spjd uint64_t zapobj; 314219089Spjd uint64_t version; 315219089Spjd char *recvdstr; 316219089Spjd int err = 0; 317219089Spjd 318219089Spjd switch (prop) { 319219089Spjd case ZFS_PROP_QUOTA: 320219089Spjd case ZFS_PROP_RESERVATION: 321219089Spjd case ZFS_PROP_REFQUOTA: 322219089Spjd case ZFS_PROP_REFRESERVATION: 323219089Spjd break; 324219089Spjd default: 325219089Spjd return (-1); 326219089Spjd } 327219089Spjd 328219089Spjd mos = dd->dd_pool->dp_meta_objset; 329219089Spjd zapobj = dd->dd_phys->dd_props_zapobj; 330219089Spjd recvdstr = kmem_asprintf("%s%s", propname, ZPROP_RECVD_SUFFIX); 331219089Spjd 332219089Spjd version = spa_version(dd->dd_pool->dp_spa); 333219089Spjd if (version < SPA_VERSION_RECVD_PROPS) { 334219089Spjd if (source & ZPROP_SRC_NONE) 335219089Spjd source = ZPROP_SRC_NONE; 336219089Spjd else if (source & ZPROP_SRC_RECEIVED) 337219089Spjd source = ZPROP_SRC_LOCAL; 338219089Spjd } 339219089Spjd 340219089Spjd switch (source) { 341219089Spjd case ZPROP_SRC_NONE: 342219089Spjd /* Revert to the received value, if any. */ 343248571Smm err = zap_lookup(mos, zapobj, recvdstr, 8, 1, newvalp); 344219089Spjd if (err == ENOENT) 345248571Smm *newvalp = 0; 346219089Spjd break; 347219089Spjd case ZPROP_SRC_LOCAL: 348248571Smm *newvalp = value; 349219089Spjd break; 350219089Spjd case ZPROP_SRC_RECEIVED: 351219089Spjd /* 352219089Spjd * If there's no local setting, then the new received value will 353219089Spjd * be the effective value. 354219089Spjd */ 355248571Smm err = zap_lookup(mos, zapobj, propname, 8, 1, newvalp); 356219089Spjd if (err == ENOENT) 357248571Smm *newvalp = value; 358219089Spjd break; 359219089Spjd case (ZPROP_SRC_NONE | ZPROP_SRC_RECEIVED): 360219089Spjd /* 361219089Spjd * We're clearing the received value, so the local setting (if 362219089Spjd * it exists) remains the effective value. 363219089Spjd */ 364248571Smm err = zap_lookup(mos, zapobj, propname, 8, 1, newvalp); 365219089Spjd if (err == ENOENT) 366248571Smm *newvalp = 0; 367219089Spjd break; 368219089Spjd default: 369248571Smm panic("unexpected property source: %d", source); 370219089Spjd } 371219089Spjd 372219089Spjd strfree(recvdstr); 373219089Spjd 374219089Spjd if (err == ENOENT) 375219089Spjd return (0); 376219089Spjd 377219089Spjd return (err); 378219089Spjd} 379219089Spjd 380219089Spjd/* 381168404Spjd * Unregister this callback. Return 0 on success, ENOENT if ddname is 382251631Sdelphij * invalid, or ENOMSG if no matching callback registered. 383168404Spjd */ 384168404Spjdint 385168404Spjddsl_prop_unregister(dsl_dataset_t *ds, const char *propname, 386168404Spjd dsl_prop_changed_cb_t *callback, void *cbarg) 387168404Spjd{ 388168404Spjd dsl_dir_t *dd = ds->ds_dir; 389168404Spjd dsl_prop_cb_record_t *cbr; 390168404Spjd 391168404Spjd mutex_enter(&dd->dd_lock); 392168404Spjd for (cbr = list_head(&dd->dd_prop_cbs); 393168404Spjd cbr; cbr = list_next(&dd->dd_prop_cbs, cbr)) { 394168404Spjd if (cbr->cbr_ds == ds && 395168404Spjd cbr->cbr_func == callback && 396168404Spjd cbr->cbr_arg == cbarg && 397168404Spjd strcmp(cbr->cbr_propname, propname) == 0) 398168404Spjd break; 399168404Spjd } 400168404Spjd 401168404Spjd if (cbr == NULL) { 402168404Spjd mutex_exit(&dd->dd_lock); 403249195Smm return (SET_ERROR(ENOMSG)); 404168404Spjd } 405168404Spjd 406168404Spjd list_remove(&dd->dd_prop_cbs, cbr); 407168404Spjd mutex_exit(&dd->dd_lock); 408168404Spjd kmem_free((void*)cbr->cbr_propname, strlen(cbr->cbr_propname)+1); 409168404Spjd kmem_free(cbr, sizeof (dsl_prop_cb_record_t)); 410168404Spjd 411168404Spjd return (0); 412168404Spjd} 413168404Spjd 414248571Smmboolean_t 415248571Smmdsl_prop_hascb(dsl_dataset_t *ds) 416168404Spjd{ 417168404Spjd dsl_dir_t *dd = ds->ds_dir; 418248571Smm boolean_t rv = B_FALSE; 419168404Spjd dsl_prop_cb_record_t *cbr; 420168404Spjd 421168404Spjd mutex_enter(&dd->dd_lock); 422248571Smm for (cbr = list_head(&dd->dd_prop_cbs); cbr; 423248571Smm cbr = list_next(&dd->dd_prop_cbs, cbr)) { 424248571Smm if (cbr->cbr_ds == ds) { 425248571Smm rv = B_TRUE; 426248571Smm break; 427248571Smm } 428168404Spjd } 429168404Spjd mutex_exit(&dd->dd_lock); 430248571Smm return (rv); 431248571Smm} 432168404Spjd 433248571Smm/* ARGSUSED */ 434248571Smmstatic int 435248571Smmdsl_prop_notify_all_cb(dsl_pool_t *dp, dsl_dataset_t *ds, void *arg) 436248571Smm{ 437248571Smm dsl_dir_t *dd = ds->ds_dir; 438248571Smm dsl_prop_cb_record_t *cbr; 439248571Smm 440248571Smm mutex_enter(&dd->dd_lock); 441248571Smm for (cbr = list_head(&dd->dd_prop_cbs); cbr; 442248571Smm cbr = list_next(&dd->dd_prop_cbs, cbr)) { 443248571Smm uint64_t value; 444248571Smm 445248571Smm if (dsl_prop_get_ds(cbr->cbr_ds, cbr->cbr_propname, 446248571Smm sizeof (value), 1, &value, NULL) == 0) 447248571Smm cbr->cbr_func(cbr->cbr_arg, value); 448248571Smm } 449248571Smm mutex_exit(&dd->dd_lock); 450248571Smm 451248571Smm return (0); 452168404Spjd} 453168404Spjd 454248571Smm/* 455248571Smm * Update all property values for ddobj & its descendants. This is used 456248571Smm * when renaming the dir. 457248571Smm */ 458248571Smmvoid 459248571Smmdsl_prop_notify_all(dsl_dir_t *dd) 460248571Smm{ 461248571Smm dsl_pool_t *dp = dd->dd_pool; 462248571Smm ASSERT(RRW_WRITE_HELD(&dp->dp_config_rwlock)); 463248571Smm (void) dmu_objset_find_dp(dp, dd->dd_object, dsl_prop_notify_all_cb, 464248571Smm NULL, DS_FIND_CHILDREN); 465248571Smm} 466248571Smm 467168404Spjdstatic void 468168404Spjddsl_prop_changed_notify(dsl_pool_t *dp, uint64_t ddobj, 469168404Spjd const char *propname, uint64_t value, int first) 470168404Spjd{ 471168404Spjd dsl_dir_t *dd; 472168404Spjd dsl_prop_cb_record_t *cbr; 473168404Spjd objset_t *mos = dp->dp_meta_objset; 474168404Spjd zap_cursor_t zc; 475185029Spjd zap_attribute_t *za; 476168404Spjd int err; 477168404Spjd 478248571Smm ASSERT(RRW_WRITE_HELD(&dp->dp_config_rwlock)); 479248571Smm err = dsl_dir_hold_obj(dp, ddobj, NULL, FTAG, &dd); 480168404Spjd if (err) 481168404Spjd return; 482168404Spjd 483168404Spjd if (!first) { 484168404Spjd /* 485168404Spjd * If the prop is set here, then this change is not 486168404Spjd * being inherited here or below; stop the recursion. 487168404Spjd */ 488219089Spjd err = zap_contains(mos, dd->dd_phys->dd_props_zapobj, propname); 489168404Spjd if (err == 0) { 490248571Smm dsl_dir_rele(dd, FTAG); 491168404Spjd return; 492168404Spjd } 493168404Spjd ASSERT3U(err, ==, ENOENT); 494168404Spjd } 495168404Spjd 496168404Spjd mutex_enter(&dd->dd_lock); 497185029Spjd for (cbr = list_head(&dd->dd_prop_cbs); cbr; 498185029Spjd cbr = list_next(&dd->dd_prop_cbs, cbr)) { 499185029Spjd uint64_t propobj = cbr->cbr_ds->ds_phys->ds_props_obj; 500185029Spjd 501185029Spjd if (strcmp(cbr->cbr_propname, propname) != 0) 502185029Spjd continue; 503185029Spjd 504185029Spjd /* 505185029Spjd * If the property is set on this ds, then it is not 506185029Spjd * inherited here; don't call the callback. 507185029Spjd */ 508219089Spjd if (propobj && 0 == zap_contains(mos, propobj, propname)) 509185029Spjd continue; 510185029Spjd 511185029Spjd cbr->cbr_func(cbr->cbr_arg, value); 512168404Spjd } 513168404Spjd mutex_exit(&dd->dd_lock); 514168404Spjd 515185029Spjd za = kmem_alloc(sizeof (zap_attribute_t), KM_SLEEP); 516168404Spjd for (zap_cursor_init(&zc, mos, 517168404Spjd dd->dd_phys->dd_child_dir_zapobj); 518185029Spjd zap_cursor_retrieve(&zc, za) == 0; 519168404Spjd zap_cursor_advance(&zc)) { 520185029Spjd dsl_prop_changed_notify(dp, za->za_first_integer, 521168404Spjd propname, value, FALSE); 522168404Spjd } 523185029Spjd kmem_free(za, sizeof (zap_attribute_t)); 524168404Spjd zap_cursor_fini(&zc); 525248571Smm dsl_dir_rele(dd, FTAG); 526168404Spjd} 527168404Spjd 528219089Spjdvoid 529248571Smmdsl_prop_set_sync_impl(dsl_dataset_t *ds, const char *propname, 530248571Smm zprop_source_t source, int intsz, int numints, const void *value, 531248571Smm dmu_tx_t *tx) 532168404Spjd{ 533185029Spjd objset_t *mos = ds->ds_dir->dd_pool->dp_meta_objset; 534219089Spjd uint64_t zapobj, intval, dummy; 535168404Spjd int isint; 536185029Spjd char valbuf[32]; 537248571Smm const char *valstr = NULL; 538219089Spjd char *inheritstr; 539219089Spjd char *recvdstr; 540219089Spjd char *tbuf = NULL; 541219089Spjd int err; 542219089Spjd uint64_t version = spa_version(ds->ds_dir->dd_pool->dp_spa); 543168404Spjd 544219089Spjd isint = (dodefault(propname, 8, 1, &intval) == 0); 545168404Spjd 546219089Spjd if (ds->ds_phys != NULL && dsl_dataset_is_snapshot(ds)) { 547219089Spjd ASSERT(version >= SPA_VERSION_SNAP_PROPS); 548185029Spjd if (ds->ds_phys->ds_props_obj == 0) { 549185029Spjd dmu_buf_will_dirty(ds->ds_dbuf, tx); 550185029Spjd ds->ds_phys->ds_props_obj = 551185029Spjd zap_create(mos, 552185029Spjd DMU_OT_DSL_PROPS, DMU_OT_NONE, 0, tx); 553185029Spjd } 554185029Spjd zapobj = ds->ds_phys->ds_props_obj; 555185029Spjd } else { 556185029Spjd zapobj = ds->ds_dir->dd_phys->dd_props_zapobj; 557185029Spjd } 558185029Spjd 559219089Spjd if (version < SPA_VERSION_RECVD_PROPS) { 560219089Spjd if (source & ZPROP_SRC_NONE) 561219089Spjd source = ZPROP_SRC_NONE; 562219089Spjd else if (source & ZPROP_SRC_RECEIVED) 563219089Spjd source = ZPROP_SRC_LOCAL; 564219089Spjd } 565219089Spjd 566219089Spjd inheritstr = kmem_asprintf("%s%s", propname, ZPROP_INHERIT_SUFFIX); 567219089Spjd recvdstr = kmem_asprintf("%s%s", propname, ZPROP_RECVD_SUFFIX); 568219089Spjd 569219089Spjd switch (source) { 570219089Spjd case ZPROP_SRC_NONE: 571219089Spjd /* 572219089Spjd * revert to received value, if any (inherit -S) 573219089Spjd * - remove propname 574219089Spjd * - remove propname$inherit 575219089Spjd */ 576219089Spjd err = zap_remove(mos, zapobj, propname, tx); 577168404Spjd ASSERT(err == 0 || err == ENOENT); 578219089Spjd err = zap_remove(mos, zapobj, inheritstr, tx); 579219089Spjd ASSERT(err == 0 || err == ENOENT); 580219089Spjd break; 581219089Spjd case ZPROP_SRC_LOCAL: 582219089Spjd /* 583219089Spjd * remove propname$inherit 584219089Spjd * set propname -> value 585219089Spjd */ 586219089Spjd err = zap_remove(mos, zapobj, inheritstr, tx); 587219089Spjd ASSERT(err == 0 || err == ENOENT); 588248571Smm VERIFY0(zap_update(mos, zapobj, propname, 589248571Smm intsz, numints, value, tx)); 590219089Spjd break; 591219089Spjd case ZPROP_SRC_INHERITED: 592219089Spjd /* 593219089Spjd * explicitly inherit 594219089Spjd * - remove propname 595219089Spjd * - set propname$inherit 596219089Spjd */ 597219089Spjd err = zap_remove(mos, zapobj, propname, tx); 598219089Spjd ASSERT(err == 0 || err == ENOENT); 599219089Spjd if (version >= SPA_VERSION_RECVD_PROPS && 600248571Smm dsl_prop_get_int_ds(ds, ZPROP_HAS_RECVD, &dummy) == 0) { 601219089Spjd dummy = 0; 602248571Smm VERIFY0(zap_update(mos, zapobj, inheritstr, 603248571Smm 8, 1, &dummy, tx)); 604168404Spjd } 605219089Spjd break; 606219089Spjd case ZPROP_SRC_RECEIVED: 607219089Spjd /* 608219089Spjd * set propname$recvd -> value 609219089Spjd */ 610219089Spjd err = zap_update(mos, zapobj, recvdstr, 611248571Smm intsz, numints, value, tx); 612219089Spjd ASSERT(err == 0); 613219089Spjd break; 614219089Spjd case (ZPROP_SRC_NONE | ZPROP_SRC_LOCAL | ZPROP_SRC_RECEIVED): 615219089Spjd /* 616219089Spjd * clear local and received settings 617219089Spjd * - remove propname 618219089Spjd * - remove propname$inherit 619219089Spjd * - remove propname$recvd 620219089Spjd */ 621219089Spjd err = zap_remove(mos, zapobj, propname, tx); 622219089Spjd ASSERT(err == 0 || err == ENOENT); 623219089Spjd err = zap_remove(mos, zapobj, inheritstr, tx); 624219089Spjd ASSERT(err == 0 || err == ENOENT); 625219089Spjd /* FALLTHRU */ 626219089Spjd case (ZPROP_SRC_NONE | ZPROP_SRC_RECEIVED): 627219089Spjd /* 628219089Spjd * remove propname$recvd 629219089Spjd */ 630219089Spjd err = zap_remove(mos, zapobj, recvdstr, tx); 631219089Spjd ASSERT(err == 0 || err == ENOENT); 632219089Spjd break; 633219089Spjd default: 634219089Spjd cmn_err(CE_PANIC, "unexpected property source: %d", source); 635168404Spjd } 636168404Spjd 637219089Spjd strfree(inheritstr); 638219089Spjd strfree(recvdstr); 639219089Spjd 640168404Spjd if (isint) { 641248571Smm VERIFY0(dsl_prop_get_int_ds(ds, propname, &intval)); 642219089Spjd 643219089Spjd if (ds->ds_phys != NULL && dsl_dataset_is_snapshot(ds)) { 644185029Spjd dsl_prop_cb_record_t *cbr; 645185029Spjd /* 646185029Spjd * It's a snapshot; nothing can inherit this 647185029Spjd * property, so just look for callbacks on this 648185029Spjd * ds here. 649185029Spjd */ 650185029Spjd mutex_enter(&ds->ds_dir->dd_lock); 651185029Spjd for (cbr = list_head(&ds->ds_dir->dd_prop_cbs); cbr; 652185029Spjd cbr = list_next(&ds->ds_dir->dd_prop_cbs, cbr)) { 653185029Spjd if (cbr->cbr_ds == ds && 654219089Spjd strcmp(cbr->cbr_propname, propname) == 0) 655185029Spjd cbr->cbr_func(cbr->cbr_arg, intval); 656185029Spjd } 657185029Spjd mutex_exit(&ds->ds_dir->dd_lock); 658185029Spjd } else { 659185029Spjd dsl_prop_changed_notify(ds->ds_dir->dd_pool, 660219089Spjd ds->ds_dir->dd_object, propname, intval, TRUE); 661185029Spjd } 662219089Spjd 663185029Spjd (void) snprintf(valbuf, sizeof (valbuf), 664185029Spjd "%lld", (longlong_t)intval); 665185029Spjd valstr = valbuf; 666185029Spjd } else { 667219089Spjd if (source == ZPROP_SRC_LOCAL) { 668248571Smm valstr = value; 669219089Spjd } else { 670219089Spjd tbuf = kmem_alloc(ZAP_MAXVALUELEN, KM_SLEEP); 671219089Spjd if (dsl_prop_get_ds(ds, propname, 1, 672219089Spjd ZAP_MAXVALUELEN, tbuf, NULL) == 0) 673219089Spjd valstr = tbuf; 674219089Spjd } 675185029Spjd } 676219089Spjd 677248571Smm spa_history_log_internal_ds(ds, (source == ZPROP_SRC_NONE || 678248571Smm source == ZPROP_SRC_INHERITED) ? "inherit" : "set", tx, 679248571Smm "%s=%s", propname, (valstr == NULL ? "" : valstr)); 680219089Spjd 681219089Spjd if (tbuf != NULL) 682219089Spjd kmem_free(tbuf, ZAP_MAXVALUELEN); 683168404Spjd} 684168404Spjd 685248571Smmint 686248571Smmdsl_prop_set_int(const char *dsname, const char *propname, 687248571Smm zprop_source_t source, uint64_t value) 688209962Smm{ 689248571Smm nvlist_t *nvl = fnvlist_alloc(); 690248571Smm int error; 691209962Smm 692248571Smm fnvlist_add_uint64(nvl, propname, value); 693248571Smm error = dsl_props_set(dsname, source, nvl); 694248571Smm fnvlist_free(nvl); 695248571Smm return (error); 696209962Smm} 697209962Smm 698248571Smmint 699248571Smmdsl_prop_set_string(const char *dsname, const char *propname, 700248571Smm zprop_source_t source, const char *value) 701168404Spjd{ 702248571Smm nvlist_t *nvl = fnvlist_alloc(); 703248571Smm int error; 704168404Spjd 705248571Smm fnvlist_add_string(nvl, propname, value); 706248571Smm error = dsl_props_set(dsname, source, nvl); 707248571Smm fnvlist_free(nvl); 708248571Smm return (error); 709168404Spjd} 710168404Spjd 711168404Spjdint 712248571Smmdsl_prop_inherit(const char *dsname, const char *propname, 713248571Smm zprop_source_t source) 714168404Spjd{ 715248571Smm nvlist_t *nvl = fnvlist_alloc(); 716248571Smm int error; 717168404Spjd 718248571Smm fnvlist_add_boolean(nvl, propname); 719248571Smm error = dsl_props_set(dsname, source, nvl); 720248571Smm fnvlist_free(nvl); 721248571Smm return (error); 722248571Smm} 723168404Spjd 724248571Smmtypedef struct dsl_props_set_arg { 725248571Smm const char *dpsa_dsname; 726248571Smm zprop_source_t dpsa_source; 727248571Smm nvlist_t *dpsa_props; 728248571Smm} dsl_props_set_arg_t; 729185029Spjd 730248571Smmstatic int 731248571Smmdsl_props_set_check(void *arg, dmu_tx_t *tx) 732209962Smm{ 733248571Smm dsl_props_set_arg_t *dpsa = arg; 734248571Smm dsl_pool_t *dp = dmu_tx_pool(tx); 735209962Smm dsl_dataset_t *ds; 736219089Spjd uint64_t version; 737209962Smm nvpair_t *elem = NULL; 738209962Smm int err; 739209962Smm 740248571Smm err = dsl_dataset_hold(dp, dpsa->dpsa_dsname, FTAG, &ds); 741248571Smm if (err != 0) 742219089Spjd return (err); 743248571Smm 744219089Spjd version = spa_version(ds->ds_dir->dd_pool->dp_spa); 745248571Smm while ((elem = nvlist_next_nvpair(dpsa->dpsa_props, elem)) != NULL) { 746219089Spjd if (strlen(nvpair_name(elem)) >= ZAP_MAXNAMELEN) { 747219089Spjd dsl_dataset_rele(ds, FTAG); 748249195Smm return (SET_ERROR(ENAMETOOLONG)); 749219089Spjd } 750209962Smm if (nvpair_type(elem) == DATA_TYPE_STRING) { 751248571Smm char *valstr = fnvpair_value_string(elem); 752219089Spjd if (strlen(valstr) >= (version < 753219089Spjd SPA_VERSION_STMF_PROP ? 754219089Spjd ZAP_OLDMAXVALUELEN : ZAP_MAXVALUELEN)) { 755219089Spjd dsl_dataset_rele(ds, FTAG); 756209962Smm return (E2BIG); 757219089Spjd } 758209962Smm } 759209962Smm } 760209962Smm 761248571Smm if (dsl_dataset_is_snapshot(ds) && version < SPA_VERSION_SNAP_PROPS) { 762209962Smm dsl_dataset_rele(ds, FTAG); 763249195Smm return (SET_ERROR(ENOTSUP)); 764209962Smm } 765248571Smm dsl_dataset_rele(ds, FTAG); 766248571Smm return (0); 767248571Smm} 768209962Smm 769248571Smmvoid 770248571Smmdsl_props_set_sync_impl(dsl_dataset_t *ds, zprop_source_t source, 771248571Smm nvlist_t *props, dmu_tx_t *tx) 772248571Smm{ 773248571Smm nvpair_t *elem = NULL; 774219089Spjd 775248571Smm while ((elem = nvlist_next_nvpair(props, elem)) != NULL) { 776248571Smm nvpair_t *pair = elem; 777209962Smm 778248571Smm if (nvpair_type(pair) == DATA_TYPE_NVLIST) { 779248571Smm /* 780248571Smm * dsl_prop_get_all_impl() returns properties in this 781248571Smm * format. 782248571Smm */ 783248571Smm nvlist_t *attrs = fnvpair_value_nvlist(pair); 784248571Smm pair = fnvlist_lookup_nvpair(attrs, ZPROP_VALUE); 785248571Smm } 786248571Smm 787248571Smm if (nvpair_type(pair) == DATA_TYPE_STRING) { 788248571Smm const char *value = fnvpair_value_string(pair); 789248571Smm dsl_prop_set_sync_impl(ds, nvpair_name(pair), 790248571Smm source, 1, strlen(value) + 1, value, tx); 791248571Smm } else if (nvpair_type(pair) == DATA_TYPE_UINT64) { 792248571Smm uint64_t intval = fnvpair_value_uint64(pair); 793248571Smm dsl_prop_set_sync_impl(ds, nvpair_name(pair), 794248571Smm source, sizeof (intval), 1, &intval, tx); 795248571Smm } else if (nvpair_type(pair) == DATA_TYPE_BOOLEAN) { 796248571Smm dsl_prop_set_sync_impl(ds, nvpair_name(pair), 797248571Smm source, 0, 0, NULL, tx); 798248571Smm } else { 799248571Smm panic("invalid nvpair type"); 800248571Smm } 801248571Smm } 802248571Smm} 803248571Smm 804248571Smmstatic void 805248571Smmdsl_props_set_sync(void *arg, dmu_tx_t *tx) 806248571Smm{ 807248571Smm dsl_props_set_arg_t *dpsa = arg; 808248571Smm dsl_pool_t *dp = dmu_tx_pool(tx); 809248571Smm dsl_dataset_t *ds; 810248571Smm 811248571Smm VERIFY0(dsl_dataset_hold(dp, dpsa->dpsa_dsname, FTAG, &ds)); 812248571Smm dsl_props_set_sync_impl(ds, dpsa->dpsa_source, dpsa->dpsa_props, tx); 813209962Smm dsl_dataset_rele(ds, FTAG); 814209962Smm} 815209962Smm 816248571Smm/* 817248571Smm * All-or-nothing; if any prop can't be set, nothing will be modified. 818248571Smm */ 819248571Smmint 820248571Smmdsl_props_set(const char *dsname, zprop_source_t source, nvlist_t *props) 821248571Smm{ 822248571Smm dsl_props_set_arg_t dpsa; 823248571Smm int nblks = 0; 824248571Smm 825248571Smm dpsa.dpsa_dsname = dsname; 826248571Smm dpsa.dpsa_source = source; 827248571Smm dpsa.dpsa_props = props; 828248571Smm 829248571Smm /* 830248571Smm * If the source includes NONE, then we will only be removing entries 831248571Smm * from the ZAP object. In that case don't check for ENOSPC. 832248571Smm */ 833248571Smm if ((source & ZPROP_SRC_NONE) == 0) 834248571Smm nblks = 2 * fnvlist_num_pairs(props); 835248571Smm 836248571Smm return (dsl_sync_task(dsname, dsl_props_set_check, dsl_props_set_sync, 837269006Sdelphij &dpsa, nblks, ZFS_SPACE_CHECK_RESERVED)); 838248571Smm} 839248571Smm 840219089Spjdtypedef enum dsl_prop_getflags { 841219089Spjd DSL_PROP_GET_INHERITING = 0x1, /* searching parent of target ds */ 842219089Spjd DSL_PROP_GET_SNAPSHOT = 0x2, /* snapshot dataset */ 843219089Spjd DSL_PROP_GET_LOCAL = 0x4, /* local properties */ 844219089Spjd DSL_PROP_GET_RECEIVED = 0x8 /* received properties */ 845219089Spjd} dsl_prop_getflags_t; 846219089Spjd 847219089Spjdstatic int 848219089Spjddsl_prop_get_all_impl(objset_t *mos, uint64_t propobj, 849219089Spjd const char *setpoint, dsl_prop_getflags_t flags, nvlist_t *nv) 850219089Spjd{ 851219089Spjd zap_cursor_t zc; 852219089Spjd zap_attribute_t za; 853219089Spjd int err = 0; 854219089Spjd 855219089Spjd for (zap_cursor_init(&zc, mos, propobj); 856219089Spjd (err = zap_cursor_retrieve(&zc, &za)) == 0; 857219089Spjd zap_cursor_advance(&zc)) { 858219089Spjd nvlist_t *propval; 859219089Spjd zfs_prop_t prop; 860219089Spjd char buf[ZAP_MAXNAMELEN]; 861219089Spjd char *valstr; 862219089Spjd const char *suffix; 863219089Spjd const char *propname; 864219089Spjd const char *source; 865219089Spjd 866219089Spjd suffix = strchr(za.za_name, '$'); 867219089Spjd 868219089Spjd if (suffix == NULL) { 869219089Spjd /* 870219089Spjd * Skip local properties if we only want received 871219089Spjd * properties. 872219089Spjd */ 873219089Spjd if (flags & DSL_PROP_GET_RECEIVED) 874219089Spjd continue; 875219089Spjd 876219089Spjd propname = za.za_name; 877219089Spjd source = setpoint; 878219089Spjd } else if (strcmp(suffix, ZPROP_INHERIT_SUFFIX) == 0) { 879219089Spjd /* Skip explicitly inherited entries. */ 880219089Spjd continue; 881219089Spjd } else if (strcmp(suffix, ZPROP_RECVD_SUFFIX) == 0) { 882219089Spjd if (flags & DSL_PROP_GET_LOCAL) 883219089Spjd continue; 884219089Spjd 885219089Spjd (void) strncpy(buf, za.za_name, (suffix - za.za_name)); 886219089Spjd buf[suffix - za.za_name] = '\0'; 887219089Spjd propname = buf; 888219089Spjd 889219089Spjd if (!(flags & DSL_PROP_GET_RECEIVED)) { 890219089Spjd /* Skip if locally overridden. */ 891219089Spjd err = zap_contains(mos, propobj, propname); 892219089Spjd if (err == 0) 893219089Spjd continue; 894219089Spjd if (err != ENOENT) 895219089Spjd break; 896219089Spjd 897219089Spjd /* Skip if explicitly inherited. */ 898219089Spjd valstr = kmem_asprintf("%s%s", propname, 899219089Spjd ZPROP_INHERIT_SUFFIX); 900219089Spjd err = zap_contains(mos, propobj, valstr); 901219089Spjd strfree(valstr); 902219089Spjd if (err == 0) 903219089Spjd continue; 904219089Spjd if (err != ENOENT) 905219089Spjd break; 906219089Spjd } 907219089Spjd 908219089Spjd source = ((flags & DSL_PROP_GET_INHERITING) ? 909219089Spjd setpoint : ZPROP_SOURCE_VAL_RECVD); 910219089Spjd } else { 911219089Spjd /* 912219089Spjd * For backward compatibility, skip suffixes we don't 913219089Spjd * recognize. 914219089Spjd */ 915219089Spjd continue; 916219089Spjd } 917219089Spjd 918219089Spjd prop = zfs_name_to_prop(propname); 919219089Spjd 920219089Spjd /* Skip non-inheritable properties. */ 921219089Spjd if ((flags & DSL_PROP_GET_INHERITING) && prop != ZPROP_INVAL && 922219089Spjd !zfs_prop_inheritable(prop)) 923219089Spjd continue; 924219089Spjd 925219089Spjd /* Skip properties not valid for this type. */ 926219089Spjd if ((flags & DSL_PROP_GET_SNAPSHOT) && prop != ZPROP_INVAL && 927219089Spjd !zfs_prop_valid_for_type(prop, ZFS_TYPE_SNAPSHOT)) 928219089Spjd continue; 929219089Spjd 930219089Spjd /* Skip properties already defined. */ 931219089Spjd if (nvlist_exists(nv, propname)) 932219089Spjd continue; 933219089Spjd 934219089Spjd VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); 935219089Spjd if (za.za_integer_length == 1) { 936219089Spjd /* 937219089Spjd * String property 938219089Spjd */ 939219089Spjd char *tmp = kmem_alloc(za.za_num_integers, 940219089Spjd KM_SLEEP); 941219089Spjd err = zap_lookup(mos, propobj, 942219089Spjd za.za_name, 1, za.za_num_integers, tmp); 943219089Spjd if (err != 0) { 944219089Spjd kmem_free(tmp, za.za_num_integers); 945219089Spjd break; 946219089Spjd } 947219089Spjd VERIFY(nvlist_add_string(propval, ZPROP_VALUE, 948219089Spjd tmp) == 0); 949219089Spjd kmem_free(tmp, za.za_num_integers); 950219089Spjd } else { 951219089Spjd /* 952219089Spjd * Integer property 953219089Spjd */ 954219089Spjd ASSERT(za.za_integer_length == 8); 955219089Spjd (void) nvlist_add_uint64(propval, ZPROP_VALUE, 956219089Spjd za.za_first_integer); 957219089Spjd } 958219089Spjd 959219089Spjd VERIFY(nvlist_add_string(propval, ZPROP_SOURCE, source) == 0); 960219089Spjd VERIFY(nvlist_add_nvlist(nv, propname, propval) == 0); 961219089Spjd nvlist_free(propval); 962219089Spjd } 963219089Spjd zap_cursor_fini(&zc); 964219089Spjd if (err == ENOENT) 965219089Spjd err = 0; 966219089Spjd return (err); 967219089Spjd} 968219089Spjd 969168404Spjd/* 970168404Spjd * Iterate over all properties for this dataset and return them in an nvlist. 971168404Spjd */ 972219089Spjdstatic int 973219089Spjddsl_prop_get_all_ds(dsl_dataset_t *ds, nvlist_t **nvp, 974219089Spjd dsl_prop_getflags_t flags) 975168404Spjd{ 976168404Spjd dsl_dir_t *dd = ds->ds_dir; 977185029Spjd dsl_pool_t *dp = dd->dd_pool; 978185029Spjd objset_t *mos = dp->dp_meta_objset; 979219089Spjd int err = 0; 980219089Spjd char setpoint[MAXNAMELEN]; 981168404Spjd 982168404Spjd VERIFY(nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP) == 0); 983168404Spjd 984219089Spjd if (dsl_dataset_is_snapshot(ds)) 985219089Spjd flags |= DSL_PROP_GET_SNAPSHOT; 986168404Spjd 987248571Smm ASSERT(dsl_pool_config_held(dp)); 988168404Spjd 989219089Spjd if (ds->ds_phys->ds_props_obj != 0) { 990219089Spjd ASSERT(flags & DSL_PROP_GET_SNAPSHOT); 991219089Spjd dsl_dataset_name(ds, setpoint); 992219089Spjd err = dsl_prop_get_all_impl(mos, ds->ds_phys->ds_props_obj, 993219089Spjd setpoint, flags, *nvp); 994219089Spjd if (err) 995219089Spjd goto out; 996219089Spjd } 997219089Spjd 998219089Spjd for (; dd != NULL; dd = dd->dd_parent) { 999219089Spjd if (dd != ds->ds_dir || (flags & DSL_PROP_GET_SNAPSHOT)) { 1000219089Spjd if (flags & (DSL_PROP_GET_LOCAL | 1001219089Spjd DSL_PROP_GET_RECEIVED)) 1002219089Spjd break; 1003219089Spjd flags |= DSL_PROP_GET_INHERITING; 1004185029Spjd } 1005219089Spjd dsl_dir_name(dd, setpoint); 1006219089Spjd err = dsl_prop_get_all_impl(mos, dd->dd_phys->dd_props_zapobj, 1007219089Spjd setpoint, flags, *nvp); 1008219089Spjd if (err) 1009219089Spjd break; 1010219089Spjd } 1011219089Spjdout: 1012219089Spjd return (err); 1013219089Spjd} 1014168404Spjd 1015219089Spjdboolean_t 1016248571Smmdsl_prop_get_hasrecvd(const char *dsname) 1017219089Spjd{ 1018219089Spjd uint64_t dummy; 1019185029Spjd 1020248571Smm return (0 == 1021248571Smm dsl_prop_get_integer(dsname, ZPROP_HAS_RECVD, &dummy, NULL)); 1022219089Spjd} 1023168404Spjd 1024248571Smmstatic int 1025248571Smmdsl_prop_set_hasrecvd_impl(const char *dsname, zprop_source_t source) 1026219089Spjd{ 1027248571Smm uint64_t version; 1028248571Smm spa_t *spa; 1029248571Smm int error = 0; 1030185029Spjd 1031248571Smm VERIFY0(spa_open(dsname, &spa, FTAG)); 1032248571Smm version = spa_version(spa); 1033248571Smm spa_close(spa, FTAG); 1034168404Spjd 1035248571Smm if (version >= SPA_VERSION_RECVD_PROPS) 1036248571Smm error = dsl_prop_set_int(dsname, ZPROP_HAS_RECVD, source, 0); 1037248571Smm return (error); 1038219089Spjd} 1039168404Spjd 1040219089Spjd/* 1041219089Spjd * Call after successfully receiving properties to ensure that only the first 1042219089Spjd * receive on or after SPA_VERSION_RECVD_PROPS blows away local properties. 1043219089Spjd */ 1044248571Smmint 1045248571Smmdsl_prop_set_hasrecvd(const char *dsname) 1046219089Spjd{ 1047248571Smm int error = 0; 1048248571Smm if (!dsl_prop_get_hasrecvd(dsname)) 1049248571Smm error = dsl_prop_set_hasrecvd_impl(dsname, ZPROP_SRC_LOCAL); 1050248571Smm return (error); 1051219089Spjd} 1052168404Spjd 1053219089Spjdvoid 1054248571Smmdsl_prop_unset_hasrecvd(const char *dsname) 1055219089Spjd{ 1056248571Smm VERIFY0(dsl_prop_set_hasrecvd_impl(dsname, ZPROP_SRC_NONE)); 1057168404Spjd} 1058168404Spjd 1059219089Spjdint 1060219089Spjddsl_prop_get_all(objset_t *os, nvlist_t **nvp) 1061219089Spjd{ 1062219089Spjd return (dsl_prop_get_all_ds(os->os_dsl_dataset, nvp, 0)); 1063219089Spjd} 1064219089Spjd 1065219089Spjdint 1066248571Smmdsl_prop_get_received(const char *dsname, nvlist_t **nvp) 1067219089Spjd{ 1068248571Smm objset_t *os; 1069248571Smm int error; 1070248571Smm 1071219089Spjd /* 1072219089Spjd * Received properties are not distinguishable from local properties 1073219089Spjd * until the dataset has received properties on or after 1074219089Spjd * SPA_VERSION_RECVD_PROPS. 1075219089Spjd */ 1076248571Smm dsl_prop_getflags_t flags = (dsl_prop_get_hasrecvd(dsname) ? 1077219089Spjd DSL_PROP_GET_RECEIVED : DSL_PROP_GET_LOCAL); 1078248571Smm 1079248571Smm error = dmu_objset_hold(dsname, FTAG, &os); 1080248571Smm if (error != 0) 1081248571Smm return (error); 1082248571Smm error = dsl_prop_get_all_ds(os->os_dsl_dataset, nvp, flags); 1083248571Smm dmu_objset_rele(os, FTAG); 1084248571Smm return (error); 1085219089Spjd} 1086219089Spjd 1087168404Spjdvoid 1088168404Spjddsl_prop_nvlist_add_uint64(nvlist_t *nv, zfs_prop_t prop, uint64_t value) 1089168404Spjd{ 1090168404Spjd nvlist_t *propval; 1091219089Spjd const char *propname = zfs_prop_to_name(prop); 1092219089Spjd uint64_t default_value; 1093168404Spjd 1094219089Spjd if (nvlist_lookup_nvlist(nv, propname, &propval) == 0) { 1095219089Spjd VERIFY(nvlist_add_uint64(propval, ZPROP_VALUE, value) == 0); 1096219089Spjd return; 1097219089Spjd } 1098219089Spjd 1099168404Spjd VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); 1100185029Spjd VERIFY(nvlist_add_uint64(propval, ZPROP_VALUE, value) == 0); 1101219089Spjd /* Indicate the default source if we can. */ 1102219089Spjd if (dodefault(propname, 8, 1, &default_value) == 0 && 1103219089Spjd value == default_value) { 1104219089Spjd VERIFY(nvlist_add_string(propval, ZPROP_SOURCE, "") == 0); 1105219089Spjd } 1106219089Spjd VERIFY(nvlist_add_nvlist(nv, propname, propval) == 0); 1107168404Spjd nvlist_free(propval); 1108168404Spjd} 1109168404Spjd 1110168404Spjdvoid 1111168404Spjddsl_prop_nvlist_add_string(nvlist_t *nv, zfs_prop_t prop, const char *value) 1112168404Spjd{ 1113168404Spjd nvlist_t *propval; 1114219089Spjd const char *propname = zfs_prop_to_name(prop); 1115168404Spjd 1116219089Spjd if (nvlist_lookup_nvlist(nv, propname, &propval) == 0) { 1117219089Spjd VERIFY(nvlist_add_string(propval, ZPROP_VALUE, value) == 0); 1118219089Spjd return; 1119219089Spjd } 1120219089Spjd 1121168404Spjd VERIFY(nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP) == 0); 1122185029Spjd VERIFY(nvlist_add_string(propval, ZPROP_VALUE, value) == 0); 1123219089Spjd VERIFY(nvlist_add_nvlist(nv, propname, propval) == 0); 1124168404Spjd nvlist_free(propval); 1125168404Spjd} 1126