libzfs_util.c revision a2eea2e101e6a163a537dcc6d4e3c4da2a0ea5b2
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER START
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The contents of this file are subject to the terms of the
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * Common Development and Distribution License (the "License").
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * You may not use this file except in compliance with the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
fa9e4066f08beec538e775443c5be79dd423fcabahrens * or http://www.opensolaris.org/os/licensing.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * See the License for the specific language governing permissions
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and limitations under the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * When distributing Covered Code, include this CDDL HEADER in each
fa9e4066f08beec538e775443c5be79dd423fcabahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If applicable, add the following below this CDDL HEADER, with the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * fields enclosed by brackets "[]" replaced with your own identifying
fa9e4066f08beec538e775443c5be79dd423fcabahrens * information: Portions Copyright [yyyy] [name of copyright owner]
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER END
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
97d9e3a676d96208790c885c4766194423e84b24ck * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Use is subject to license terms.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#pragma ident "%Z%%M% %I% %E% SMI"
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Internal utility routines for the ZFS library.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <errno.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <fcntl.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <libintl.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <stdarg.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <stdio.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <stdlib.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <strings.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <unistd.h>
990b4856d0eaada6f8140335733a1b1771ed2746lling#include <sys/mnttab.h>
990b4856d0eaada6f8140335733a1b1771ed2746lling
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <libzfs.h>
5aba80db367b061758a29154d304977d00d8e4f4ck
5aba80db367b061758a29154d304977d00d8e4f4ck#include "libzfs_impl.h"
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrenslibzfs_errno(libzfs_handle_t *hdl)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
91ebeef555ce7f899b6270a3c2df47b51f7ad59aahrens return (hdl->libzfs_error);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrockconst char *
99653d4ee642c6528e88224f12409a5f23060994eschrocklibzfs_error_action(libzfs_handle_t *hdl)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock return (hdl->libzfs_action);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrockconst char *
99653d4ee642c6528e88224f12409a5f23060994eschrocklibzfs_error_description(libzfs_handle_t *hdl)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock if (hdl->libzfs_desc[0] != '\0')
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (hdl->libzfs_desc);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock switch (hdl->libzfs_error) {
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_NOMEM:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "out of memory"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_BADPROP:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "invalid property value"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_PROPREADONLY:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "read only property"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_PROPTYPE:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "property doesn't apply to "
99653d4ee642c6528e88224f12409a5f23060994eschrock "datasets of this type"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_PROPNONINHERIT:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "property cannot be inherited"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_PROPSPACE:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "invalid quota or reservation"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_BADTYPE:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "operation not applicable to "
99653d4ee642c6528e88224f12409a5f23060994eschrock "datasets of this type"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_BUSY:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "pool or dataset is busy"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_EXISTS:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "pool or dataset exists"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_NOENT:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "no such pool or dataset"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_BADSTREAM:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "invalid backup stream"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_DSREADONLY:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "dataset is read only"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_VOLTOOBIG:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "volume size exceeds limit for "
99653d4ee642c6528e88224f12409a5f23060994eschrock "this system"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_VOLHASDATA:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "volume has data"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_INVALIDNAME:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "invalid name"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_BADRESTORE:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "unable to restore to "
99653d4ee642c6528e88224f12409a5f23060994eschrock "destination"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_BADBACKUP:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "backup failed"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_BADTARGET:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "invalid target vdev"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_NODEVICE:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "no such device in pool"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_BADDEV:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "invalid device"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_NOREPLICAS:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "no valid replicas"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_RESILVERING:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "currently resilvering"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_BADVERSION:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "unsupported version"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_POOLUNAVAIL:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "pool is unavailable"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_DEVOVERFLOW:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "too many devices in one vdev"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_BADPATH:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "must be an absolute path"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_CROSSTARGET:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "operation crosses datasets or "
99653d4ee642c6528e88224f12409a5f23060994eschrock "pools"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_ZONED:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "dataset in use by local zone"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_MOUNTFAILED:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "mount failed"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_UMOUNTFAILED:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "umount failed"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_UNSHAREFAILED:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "unshare(1M) failed"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_SHAREFAILED:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "share(1M) failed"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_DEVLINKS:
f3861e1a2ceec23a5b699c24d814b7775a9e0b52ahl return (dgettext(TEXT_DOMAIN, "failed to create /dev links"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_PERM:
f3861e1a2ceec23a5b699c24d814b7775a9e0b52ahl return (dgettext(TEXT_DOMAIN, "permission denied"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_NOSPC:
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw return (dgettext(TEXT_DOMAIN, "out of space"));
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw case EZFS_IO:
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw return (dgettext(TEXT_DOMAIN, "I/O error"));
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw case EZFS_INTR:
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks return (dgettext(TEXT_DOMAIN, "signal received"));
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks case EZFS_ISSPARE:
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks return (dgettext(TEXT_DOMAIN, "device is reserved as a hot "
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks "spare"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_INVALCONFIG:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "invalid vdev configuration"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_RECURSIVE:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "recursive dataset dependency"));
99653d4ee642c6528e88224f12409a5f23060994eschrock case EZFS_UNKNOWN:
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "unknown error"));
99653d4ee642c6528e88224f12409a5f23060994eschrock default:
99653d4ee642c6528e88224f12409a5f23060994eschrock assert(hdl->libzfs_error == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock return (dgettext(TEXT_DOMAIN, "no error"));
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock/*PRINTFLIKE2*/
99653d4ee642c6528e88224f12409a5f23060994eschrockvoid
99653d4ee642c6528e88224f12409a5f23060994eschrockzfs_error_aux(libzfs_handle_t *hdl, const char *fmt, ...)
3bb79bece53191f2cf27aa61a72ea1784a7ce700eschrock{
3bb79bece53191f2cf27aa61a72ea1784a7ce700eschrock va_list ap;
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek va_start(ap, fmt);
f3861e1a2ceec23a5b699c24d814b7775a9e0b52ahl
f3861e1a2ceec23a5b699c24d814b7775a9e0b52ahl (void) vsnprintf(hdl->libzfs_desc, sizeof (hdl->libzfs_desc),
f3861e1a2ceec23a5b699c24d814b7775a9e0b52ahl fmt, ap);
f3861e1a2ceec23a5b699c24d814b7775a9e0b52ahl hdl->libzfs_desc_active = 1;
f3861e1a2ceec23a5b699c24d814b7775a9e0b52ahl
f3861e1a2ceec23a5b699c24d814b7775a9e0b52ahl va_end(ap);
b1b8ab34de515a5e83206da22c3d7e563241b021lling}
b1b8ab34de515a5e83206da22c3d7e563241b021lling
b1b8ab34de515a5e83206da22c3d7e563241b021llingstatic void
b1b8ab34de515a5e83206da22c3d7e563241b021llingzfs_verror(libzfs_handle_t *hdl, int error, const char *fmt, va_list ap)
b1b8ab34de515a5e83206da22c3d7e563241b021lling{
b1b8ab34de515a5e83206da22c3d7e563241b021lling (void) vsnprintf(hdl->libzfs_action, sizeof (hdl->libzfs_action),
b1b8ab34de515a5e83206da22c3d7e563241b021lling fmt, ap);
b1b8ab34de515a5e83206da22c3d7e563241b021lling hdl->libzfs_error = error;
b1b8ab34de515a5e83206da22c3d7e563241b021lling
b7661ccca92e6bf5160f4d5d2601efaeaa1f5161mmusante if (hdl->libzfs_desc_active)
b7661ccca92e6bf5160f4d5d2601efaeaa1f5161mmusante hdl->libzfs_desc_active = 0;
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor else
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor hdl->libzfs_desc[0] = '\0';
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if (hdl->libzfs_printerr) {
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor if (error == EZFS_UNKNOWN) {
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "internal "
8488aeb5df27784d479c16cde06a9e25cd9a1152taylor "error: %s\n"), libzfs_error_description(hdl));
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks abort();
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks }
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks (void) fprintf(stderr, "%s: %s\n", hdl->libzfs_action,
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks libzfs_error_description(hdl));
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks if (error == EZFS_NOMEM)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks exit(1);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks }
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks}
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks/*PRINTFLIKE3*/
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarksint
2f8aaab38e6371ad39ed90a1211ba8921acbb4d5eschrockzfs_error(libzfs_handle_t *hdl, int error, const char *fmt, ...)
2f8aaab38e6371ad39ed90a1211ba8921acbb4d5eschrock{
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan va_list ap;
fa94a07fd0519b8abfd871ad8fe60e6bebe1e2bbbrendan
e7cbe64f7a72dae5cb44f100db60ca88f3313c65gw va_start(ap, fmt);
e7cbe64f7a72dae5cb44f100db60ca88f3313c65gw
e7cbe64f7a72dae5cb44f100db60ca88f3313c65gw zfs_verror(hdl, error, fmt, ap);
15e6edf145a9c2bb0e0272cf8debe823bb97529bgw
15e6edf145a9c2bb0e0272cf8debe823bb97529bgw va_end(ap);
15e6edf145a9c2bb0e0272cf8debe823bb97529bgw
99653d4ee642c6528e88224f12409a5f23060994eschrock return (-1);
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
c08432ebe688ed6410b302771a9afd8e23e2a7cceschrockstatic int
c08432ebe688ed6410b302771a9afd8e23e2a7cceschrockzfs_common_error(libzfs_handle_t *hdl, int error, const char *fmt,
99653d4ee642c6528e88224f12409a5f23060994eschrock va_list ap)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock switch (error) {
99653d4ee642c6528e88224f12409a5f23060994eschrock case EPERM:
fa9e4066f08beec538e775443c5be79dd423fcabahrens case EACCES:
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_verror(hdl, EZFS_PERM, fmt, ap);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (-1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens case EIO:
fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_verror(hdl, EZFS_IO, fmt, ap);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (-1);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock case EINTR:
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_verror(hdl, EZFS_INTR, fmt, ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock return (-1);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock return (0);
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock/*PRINTFLIKE3*/
99653d4ee642c6528e88224f12409a5f23060994eschrockint
99653d4ee642c6528e88224f12409a5f23060994eschrockzfs_standard_error(libzfs_handle_t *hdl, int error, const char *fmt, ...)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock va_list ap;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock va_start(ap, fmt);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (zfs_common_error(hdl, error, fmt, ap) != 0) {
99653d4ee642c6528e88224f12409a5f23060994eschrock va_end(ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock return (-1);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock switch (error) {
99653d4ee642c6528e88224f12409a5f23060994eschrock case ENXIO:
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_verror(hdl, EZFS_IO, fmt, ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock break;
b1b8ab34de515a5e83206da22c3d7e563241b021lling
99653d4ee642c6528e88224f12409a5f23060994eschrock case ENOENT:
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
fa9e4066f08beec538e775443c5be79dd423fcabahrens "dataset does not exist"));
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_verror(hdl, EZFS_NOENT, fmt, ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock break;
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling case ENOSPC:
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling case EDQUOT:
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling zfs_verror(hdl, EZFS_NOSPC, fmt, ap);
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling return (-1);
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling
99653d4ee642c6528e88224f12409a5f23060994eschrock case EEXIST:
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling "dataset already exists"));
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock break;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock case EBUSY:
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
99653d4ee642c6528e88224f12409a5f23060994eschrock "dataset is busy"));
fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_verror(hdl, EZFS_BUSY, fmt, ap);
fa9e4066f08beec538e775443c5be79dd423fcabahrens break;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock default:
fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_error_aux(hdl, strerror(errno));
fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock break;
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock va_end(ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock return (-1);
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock/*PRINTFLIKE3*/
99653d4ee642c6528e88224f12409a5f23060994eschrockint
99653d4ee642c6528e88224f12409a5f23060994eschrockzpool_standard_error(libzfs_handle_t *hdl, int error, const char *fmt, ...)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks{
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks va_list ap;
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks va_start(ap, fmt);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (zfs_common_error(hdl, error, fmt, ap) != 0) {
99653d4ee642c6528e88224f12409a5f23060994eschrock va_end(ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock return (-1);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock switch (error) {
99653d4ee642c6528e88224f12409a5f23060994eschrock case ENODEV:
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_verror(hdl, EZFS_NODEVICE, fmt, ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock break;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock case ENOENT:
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "no such pool"));
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling zfs_verror(hdl, EZFS_NOENT, fmt, ap);
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling break;
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling case EEXIST:
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
99653d4ee642c6528e88224f12409a5f23060994eschrock "pool already exists"));
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling break;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens case EBUSY:
fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool is busy"));
fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_verror(hdl, EZFS_EXISTS, fmt, ap);
fa9e4066f08beec538e775443c5be79dd423fcabahrens break;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock case ENXIO:
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
fa9e4066f08beec538e775443c5be79dd423fcabahrens "one or more devices is currently unavailable"));
fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_verror(hdl, EZFS_BADDEV, fmt, ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock break;
99653d4ee642c6528e88224f12409a5f23060994eschrock
97d9e3a676d96208790c885c4766194423e84b24ck case ENAMETOOLONG:
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_verror(hdl, EZFS_DEVOVERFLOW, fmt, ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock break;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock default:
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_error_aux(hdl, strerror(error));
99653d4ee642c6528e88224f12409a5f23060994eschrock zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock va_end(ap);
99653d4ee642c6528e88224f12409a5f23060994eschrock return (-1);
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock/*
99653d4ee642c6528e88224f12409a5f23060994eschrock * Display an out of memory error message and abort the current program.
99653d4ee642c6528e88224f12409a5f23060994eschrock */
99653d4ee642c6528e88224f12409a5f23060994eschrockint
99653d4ee642c6528e88224f12409a5f23060994eschrockno_memory(libzfs_handle_t *hdl)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock return (zfs_error(hdl, EZFS_NOMEM, "internal error"));
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock/*
99653d4ee642c6528e88224f12409a5f23060994eschrock * A safe form of malloc() which will die if the allocation fails.
99653d4ee642c6528e88224f12409a5f23060994eschrock */
99653d4ee642c6528e88224f12409a5f23060994eschrockvoid *
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarkszfs_alloc(libzfs_handle_t *hdl, size_t size)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks{
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks void *data;
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks if ((data = calloc(1, size)) == NULL)
b7661ccca92e6bf5160f4d5d2601efaeaa1f5161mmusante (void) no_memory(hdl);
b7661ccca92e6bf5160f4d5d2601efaeaa1f5161mmusante
b7661ccca92e6bf5160f4d5d2601efaeaa1f5161mmusante return (data);
40ff3960ec49d8bb707c8b7f0030f2ac0c014033ck}
40ff3960ec49d8bb707c8b7f0030f2ac0c014033ck
40ff3960ec49d8bb707c8b7f0030f2ac0c014033ck/*
99653d4ee642c6528e88224f12409a5f23060994eschrock * A safe form of realloc(), which also zeroes newly allocated space.
99653d4ee642c6528e88224f12409a5f23060994eschrock */
99653d4ee642c6528e88224f12409a5f23060994eschrockvoid *
99653d4ee642c6528e88224f12409a5f23060994eschrockzfs_realloc(libzfs_handle_t *hdl, void *ptr, size_t oldsize, size_t newsize)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock void *ret;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if ((ret = realloc(ptr, newsize)) == NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) no_memory(hdl);
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(ptr);
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling return (NULL);
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling }
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling bzero((char *)ret + oldsize, (newsize - oldsize));
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling return (ret);
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock/*
ece3d9b3bacef51a5f34d993935eedbb7bb87059lling * A safe form of strdup() which will die if the allocation fails.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
99653d4ee642c6528e88224f12409a5f23060994eschrockchar *
99653d4ee642c6528e88224f12409a5f23060994eschrockzfs_strdup(libzfs_handle_t *hdl, const char *str)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock char *ret;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if ((ret = strdup(str)) == NULL)
99653d4ee642c6528e88224f12409a5f23060994eschrock (void) no_memory(hdl);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock return (ret);
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock/*
99653d4ee642c6528e88224f12409a5f23060994eschrock * Convert a number to an appropriately human-readable output.
99653d4ee642c6528e88224f12409a5f23060994eschrock */
99653d4ee642c6528e88224f12409a5f23060994eschrockvoid
b1b8ab34de515a5e83206da22c3d7e563241b021llingzfs_nicenum(uint64_t num, char *buf, size_t buflen)
b1b8ab34de515a5e83206da22c3d7e563241b021lling{
99653d4ee642c6528e88224f12409a5f23060994eschrock uint64_t n = num;
99653d4ee642c6528e88224f12409a5f23060994eschrock int index = 0;
99653d4ee642c6528e88224f12409a5f23060994eschrock char u;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock while (n >= 1024) {
99653d4ee642c6528e88224f12409a5f23060994eschrock n /= 1024;
99653d4ee642c6528e88224f12409a5f23060994eschrock index++;
99653d4ee642c6528e88224f12409a5f23060994eschrock }
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock u = " KMGTPE"[index];
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (index == 0) {
99653d4ee642c6528e88224f12409a5f23060994eschrock (void) snprintf(buf, buflen, "%llu", n);
99653d4ee642c6528e88224f12409a5f23060994eschrock } else if ((num & ((1ULL << 10 * index) - 1)) == 0) {
99653d4ee642c6528e88224f12409a5f23060994eschrock /*
99653d4ee642c6528e88224f12409a5f23060994eschrock * If this is an even multiple of the base, always display
99653d4ee642c6528e88224f12409a5f23060994eschrock * without any decimal precision.
99653d4ee642c6528e88224f12409a5f23060994eschrock */
99653d4ee642c6528e88224f12409a5f23060994eschrock (void) snprintf(buf, buflen, "%llu%c", n, u);
99653d4ee642c6528e88224f12409a5f23060994eschrock } else {
99653d4ee642c6528e88224f12409a5f23060994eschrock /*
99653d4ee642c6528e88224f12409a5f23060994eschrock * We want to choose a precision that reflects the best choice
99653d4ee642c6528e88224f12409a5f23060994eschrock * for fitting in 5 characters. This can get rather tricky when
99653d4ee642c6528e88224f12409a5f23060994eschrock * we have numbers that are very close to an order of magnitude.
b1b8ab34de515a5e83206da22c3d7e563241b021lling * For example, when displaying 10239 (which is really 9.999K),
b1b8ab34de515a5e83206da22c3d7e563241b021lling * we want only a single place of precision for 10.0K. We could
b1b8ab34de515a5e83206da22c3d7e563241b021lling * develop some complex heuristics for this, but it's much
b1b8ab34de515a5e83206da22c3d7e563241b021lling * easier just to try each combination in turn.
b1b8ab34de515a5e83206da22c3d7e563241b021lling */
b1b8ab34de515a5e83206da22c3d7e563241b021lling int i;
b1b8ab34de515a5e83206da22c3d7e563241b021lling for (i = 2; i >= 0; i--) {
b1b8ab34de515a5e83206da22c3d7e563241b021lling (void) snprintf(buf, buflen, "%.*f%c", i,
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks (double)num / (1ULL << 10 * index), u);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks if (strlen(buf) <= 5)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks break;
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks }
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks }
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrockvoid
99653d4ee642c6528e88224f12409a5f23060994eschrocklibzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock hdl->libzfs_printerr = printerr;
99653d4ee642c6528e88224f12409a5f23060994eschrock}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrenslibzfs_handle_t *
fa9e4066f08beec538e775443c5be79dd423fcabahrenslibzfs_init(void)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens libzfs_handle_t *hdl;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if ((hdl = calloc(sizeof (libzfs_handle_t), 1)) == NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
99653d4ee642c6528e88224f12409a5f23060994eschrock }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(hdl);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
99653d4ee642c6528e88224f12409a5f23060994eschrock if ((hdl->libzfs_mnttab = fopen(MNTTAB, "r")) == NULL) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) close(hdl->libzfs_fd);
fa9e4066f08beec538e775443c5be79dd423fcabahrens free(hdl);
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (NULL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
99653d4ee642c6528e88224f12409a5f23060994eschrock
fa9e4066f08beec538e775443c5be79dd423fcabahrens hdl->libzfs_sharetab = fopen("/etc/dfs/sharetab", "r");
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (hdl);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrockvoid
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrocklibzfs_fini(libzfs_handle_t *hdl)
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock{
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock (void) close(hdl->libzfs_fd);
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock if (hdl->libzfs_mnttab)
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock (void) fclose(hdl->libzfs_mnttab);
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock if (hdl->libzfs_sharetab)
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock (void) fclose(hdl->libzfs_sharetab);
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock namespace_clear(hdl);
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock free(hdl);
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock}
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrocklibzfs_handle_t *
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrockzpool_get_handle(zpool_handle_t *zhp)
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock{
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock return (zhp->zpool_hdl);
e9dbad6f263d5570ed7ff5443ec5b958af8c24d7eschrock}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrenslibzfs_handle_t *
fa9e4066f08beec538e775443c5be79dd423fcabahrenszfs_get_handle(zfs_handle_t *zhp)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
99653d4ee642c6528e88224f12409a5f23060994eschrock return (zhp->zfs_hdl);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from
99653d4ee642c6528e88224f12409a5f23060994eschrock * an ioctl().
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrenszcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (len == 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens len = 2048;
fa9e4066f08beec538e775443c5be79dd423fcabahrens zc->zc_nvlist_dst_size = len;
fa9e4066f08beec538e775443c5be79dd423fcabahrens if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
fa9e4066f08beec538e775443c5be79dd423fcabahrens zfs_alloc(hdl, zc->zc_nvlist_dst_size)) == NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (-1);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
5c7098917783942b65876f681a21342761227dadeschrock * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will
fa9e4066f08beec538e775443c5be79dd423fcabahrens * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was
fa9e4066f08beec538e775443c5be79dd423fcabahrens * filled in by the kernel to indicate the actual required size.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrensint
fa9e4066f08beec538e775443c5be79dd423fcabahrenszcmd_expand_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc)
5c7098917783942b65876f681a21342761227dadeschrock{
fa9e4066f08beec538e775443c5be79dd423fcabahrens free((void *)(uintptr_t)zc->zc_nvlist_dst);
5c7098917783942b65876f681a21342761227dadeschrock if ((zc->zc_nvlist_dst = (uint64_t)(uintptr_t)
5c7098917783942b65876f681a21342761227dadeschrock zfs_alloc(hdl, zc->zc_nvlist_dst_size))
5c7098917783942b65876f681a21342761227dadeschrock == NULL)
5c7098917783942b65876f681a21342761227dadeschrock return (-1);
5c7098917783942b65876f681a21342761227dadeschrock
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
5c7098917783942b65876f681a21342761227dadeschrock}
5c7098917783942b65876f681a21342761227dadeschrock
5c7098917783942b65876f681a21342761227dadeschrock/*
5c7098917783942b65876f681a21342761227dadeschrock * Called to free the src and dst nvlists stored in the command structure.
5c7098917783942b65876f681a21342761227dadeschrock */
5c7098917783942b65876f681a21342761227dadeschrockvoid
5c7098917783942b65876f681a21342761227dadeschrockzcmd_free_nvlists(zfs_cmd_t *zc)
5c7098917783942b65876f681a21342761227dadeschrock{
5c7098917783942b65876f681a21342761227dadeschrock free((void *)(uintptr_t)zc->zc_nvlist_src);
5c7098917783942b65876f681a21342761227dadeschrock free((void *)(uintptr_t)zc->zc_nvlist_dst);
5c7098917783942b65876f681a21342761227dadeschrock}
5c7098917783942b65876f681a21342761227dadeschrock
3d7072f8bd27709dba14f6fe336f149d25d9e207eschrockint
3d7072f8bd27709dba14f6fe336f149d25d9e207eschrockzcmd_write_src_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl,
5c7098917783942b65876f681a21342761227dadeschrock size_t *size)
5c7098917783942b65876f681a21342761227dadeschrock{
5c7098917783942b65876f681a21342761227dadeschrock char *packed;
fa9e4066f08beec538e775443c5be79dd423fcabahrens size_t len;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock verify(nvlist_size(nvl, &len, NV_ENCODE_NATIVE) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if ((packed = zfs_alloc(hdl, len)) == NULL)
99653d4ee642c6528e88224f12409a5f23060994eschrock return (-1);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock verify(nvlist_pack(nvl, &packed, &len, NV_ENCODE_NATIVE, 0) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock zc->zc_nvlist_src = (uint64_t)(uintptr_t)packed;
99653d4ee642c6528e88224f12409a5f23060994eschrock zc->zc_nvlist_src_size = len;
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock if (size)
99653d4ee642c6528e88224f12409a5f23060994eschrock *size = len;
99653d4ee642c6528e88224f12409a5f23060994eschrock return (0);
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock
c08432ebe688ed6410b302771a9afd8e23e2a7cceschrock/*
99653d4ee642c6528e88224f12409a5f23060994eschrock * Unpacks an nvlist from the ZFS ioctl command structure.
99653d4ee642c6528e88224f12409a5f23060994eschrock */
99653d4ee642c6528e88224f12409a5f23060994eschrockint
99653d4ee642c6528e88224f12409a5f23060994eschrockzcmd_read_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t **nvlp)
99653d4ee642c6528e88224f12409a5f23060994eschrock{
99653d4ee642c6528e88224f12409a5f23060994eschrock if (nvlist_unpack((void *)(uintptr_t)zc->zc_nvlist_dst,
99653d4ee642c6528e88224f12409a5f23060994eschrock zc->zc_nvlist_dst_size, nvlp, 0) != 0)
99653d4ee642c6528e88224f12409a5f23060994eschrock return (no_memory(hdl));
99653d4ee642c6528e88224f12409a5f23060994eschrock
99653d4ee642c6528e88224f12409a5f23060994eschrock return (0);
99653d4ee642c6528e88224f12409a5f23060994eschrock}
99653d4ee642c6528e88224f12409a5f23060994eschrock