1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21ad135b5dSChristopher Siden 22fa9e4066Sahrens /* 233f9d6ad7SLin Ling * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24a2afb611SJerry Jelinek * Copyright (c) 2013, Joyent, Inc. All rights reserved. 259a686fbcSPaul Dagnelie * Copyright (c) 2011, 2015 by Delphix. All rights reserved. 26*88f61deeSIgor Kozhukhov * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com> 27fa9e4066Sahrens */ 28fa9e4066Sahrens 29fa9e4066Sahrens /* 30fa9e4066Sahrens * Internal utility routines for the ZFS library. 31fa9e4066Sahrens */ 32fa9e4066Sahrens 33fa9e4066Sahrens #include <errno.h> 34fa9e4066Sahrens #include <fcntl.h> 35fa9e4066Sahrens #include <libintl.h> 36fa9e4066Sahrens #include <stdarg.h> 37fa9e4066Sahrens #include <stdio.h> 38fa9e4066Sahrens #include <stdlib.h> 39fa9e4066Sahrens #include <strings.h> 40fa9e4066Sahrens #include <unistd.h> 41990b4856Slling #include <ctype.h> 42990b4856Slling #include <math.h> 432bcf0248SMax Grossman #include <sys/filio.h> 44fa9e4066Sahrens #include <sys/mnttab.h> 455aba80dbSck #include <sys/mntent.h> 465aba80dbSck #include <sys/types.h> 47fa9e4066Sahrens 48fa9e4066Sahrens #include <libzfs.h> 494445fffbSMatthew Ahrens #include <libzfs_core.h> 50fa9e4066Sahrens 51fa9e4066Sahrens #include "libzfs_impl.h" 5291ebeef5Sahrens #include "zfs_prop.h" 53ad135b5dSChristopher Siden #include "zfeature_common.h" 54fa9e4066Sahrens 5599653d4eSeschrock int 5699653d4eSeschrock libzfs_errno(libzfs_handle_t *hdl) 5799653d4eSeschrock { 5899653d4eSeschrock return (hdl->libzfs_error); 5999653d4eSeschrock } 60fa9e4066Sahrens 6199653d4eSeschrock const char * 6299653d4eSeschrock libzfs_error_action(libzfs_handle_t *hdl) 6399653d4eSeschrock { 6499653d4eSeschrock return (hdl->libzfs_action); 6599653d4eSeschrock } 66fa9e4066Sahrens 6799653d4eSeschrock const char * 6899653d4eSeschrock libzfs_error_description(libzfs_handle_t *hdl) 6999653d4eSeschrock { 7099653d4eSeschrock if (hdl->libzfs_desc[0] != '\0') 7199653d4eSeschrock return (hdl->libzfs_desc); 7299653d4eSeschrock 7399653d4eSeschrock switch (hdl->libzfs_error) { 7499653d4eSeschrock case EZFS_NOMEM: 7599653d4eSeschrock return (dgettext(TEXT_DOMAIN, "out of memory")); 7699653d4eSeschrock case EZFS_BADPROP: 7799653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid property value")); 7899653d4eSeschrock case EZFS_PROPREADONLY: 79f9af39baSGeorge Wilson return (dgettext(TEXT_DOMAIN, "read-only property")); 8099653d4eSeschrock case EZFS_PROPTYPE: 8199653d4eSeschrock return (dgettext(TEXT_DOMAIN, "property doesn't apply to " 8299653d4eSeschrock "datasets of this type")); 8399653d4eSeschrock case EZFS_PROPNONINHERIT: 8499653d4eSeschrock return (dgettext(TEXT_DOMAIN, "property cannot be inherited")); 8599653d4eSeschrock case EZFS_PROPSPACE: 8699653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid quota or reservation")); 8799653d4eSeschrock case EZFS_BADTYPE: 8899653d4eSeschrock return (dgettext(TEXT_DOMAIN, "operation not applicable to " 8999653d4eSeschrock "datasets of this type")); 9099653d4eSeschrock case EZFS_BUSY: 9199653d4eSeschrock return (dgettext(TEXT_DOMAIN, "pool or dataset is busy")); 9299653d4eSeschrock case EZFS_EXISTS: 9399653d4eSeschrock return (dgettext(TEXT_DOMAIN, "pool or dataset exists")); 9499653d4eSeschrock case EZFS_NOENT: 9599653d4eSeschrock return (dgettext(TEXT_DOMAIN, "no such pool or dataset")); 9699653d4eSeschrock case EZFS_BADSTREAM: 9799653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid backup stream")); 9899653d4eSeschrock case EZFS_DSREADONLY: 99f9af39baSGeorge Wilson return (dgettext(TEXT_DOMAIN, "dataset is read-only")); 10099653d4eSeschrock case EZFS_VOLTOOBIG: 10199653d4eSeschrock return (dgettext(TEXT_DOMAIN, "volume size exceeds limit for " 10299653d4eSeschrock "this system")); 10399653d4eSeschrock case EZFS_INVALIDNAME: 10499653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid name")); 10599653d4eSeschrock case EZFS_BADRESTORE: 10699653d4eSeschrock return (dgettext(TEXT_DOMAIN, "unable to restore to " 10799653d4eSeschrock "destination")); 10899653d4eSeschrock case EZFS_BADBACKUP: 10999653d4eSeschrock return (dgettext(TEXT_DOMAIN, "backup failed")); 11099653d4eSeschrock case EZFS_BADTARGET: 11199653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid target vdev")); 11299653d4eSeschrock case EZFS_NODEVICE: 11399653d4eSeschrock return (dgettext(TEXT_DOMAIN, "no such device in pool")); 11499653d4eSeschrock case EZFS_BADDEV: 11599653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid device")); 11699653d4eSeschrock case EZFS_NOREPLICAS: 11799653d4eSeschrock return (dgettext(TEXT_DOMAIN, "no valid replicas")); 11899653d4eSeschrock case EZFS_RESILVERING: 11999653d4eSeschrock return (dgettext(TEXT_DOMAIN, "currently resilvering")); 12099653d4eSeschrock case EZFS_BADVERSION: 121ad135b5dSChristopher Siden return (dgettext(TEXT_DOMAIN, "unsupported version or " 122ad135b5dSChristopher Siden "feature")); 12399653d4eSeschrock case EZFS_POOLUNAVAIL: 12499653d4eSeschrock return (dgettext(TEXT_DOMAIN, "pool is unavailable")); 12599653d4eSeschrock case EZFS_DEVOVERFLOW: 12699653d4eSeschrock return (dgettext(TEXT_DOMAIN, "too many devices in one vdev")); 12799653d4eSeschrock case EZFS_BADPATH: 12899653d4eSeschrock return (dgettext(TEXT_DOMAIN, "must be an absolute path")); 12999653d4eSeschrock case EZFS_CROSSTARGET: 13099653d4eSeschrock return (dgettext(TEXT_DOMAIN, "operation crosses datasets or " 13199653d4eSeschrock "pools")); 13299653d4eSeschrock case EZFS_ZONED: 13399653d4eSeschrock return (dgettext(TEXT_DOMAIN, "dataset in use by local zone")); 13499653d4eSeschrock case EZFS_MOUNTFAILED: 13599653d4eSeschrock return (dgettext(TEXT_DOMAIN, "mount failed")); 13699653d4eSeschrock case EZFS_UMOUNTFAILED: 13799653d4eSeschrock return (dgettext(TEXT_DOMAIN, "umount failed")); 138f3861e1aSahl case EZFS_UNSHARENFSFAILED: 13999653d4eSeschrock return (dgettext(TEXT_DOMAIN, "unshare(1M) failed")); 140f3861e1aSahl case EZFS_SHARENFSFAILED: 14199653d4eSeschrock return (dgettext(TEXT_DOMAIN, "share(1M) failed")); 142da6c28aaSamw case EZFS_UNSHARESMBFAILED: 143da6c28aaSamw return (dgettext(TEXT_DOMAIN, "smb remove share failed")); 144da6c28aaSamw case EZFS_SHARESMBFAILED: 145da6c28aaSamw return (dgettext(TEXT_DOMAIN, "smb add share failed")); 14699653d4eSeschrock case EZFS_PERM: 14799653d4eSeschrock return (dgettext(TEXT_DOMAIN, "permission denied")); 14899653d4eSeschrock case EZFS_NOSPC: 14999653d4eSeschrock return (dgettext(TEXT_DOMAIN, "out of space")); 1506e27f868SSam Falkner case EZFS_FAULT: 1516e27f868SSam Falkner return (dgettext(TEXT_DOMAIN, "bad address")); 15299653d4eSeschrock case EZFS_IO: 15399653d4eSeschrock return (dgettext(TEXT_DOMAIN, "I/O error")); 15499653d4eSeschrock case EZFS_INTR: 15599653d4eSeschrock return (dgettext(TEXT_DOMAIN, "signal received")); 15699653d4eSeschrock case EZFS_ISSPARE: 15799653d4eSeschrock return (dgettext(TEXT_DOMAIN, "device is reserved as a hot " 15899653d4eSeschrock "spare")); 15999653d4eSeschrock case EZFS_INVALCONFIG: 16099653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid vdev configuration")); 1613bb79becSeschrock case EZFS_RECURSIVE: 1623bb79becSeschrock return (dgettext(TEXT_DOMAIN, "recursive dataset dependency")); 16306eeb2adSek case EZFS_NOHISTORY: 16406eeb2adSek return (dgettext(TEXT_DOMAIN, "no history available")); 165b1b8ab34Slling case EZFS_POOLPROPS: 166b1b8ab34Slling return (dgettext(TEXT_DOMAIN, "failed to retrieve " 167b1b8ab34Slling "pool properties")); 168b1b8ab34Slling case EZFS_POOL_NOTSUP: 169b1b8ab34Slling return (dgettext(TEXT_DOMAIN, "operation not supported " 170b1b8ab34Slling "on this type of pool")); 171b1b8ab34Slling case EZFS_POOL_INVALARG: 172b1b8ab34Slling return (dgettext(TEXT_DOMAIN, "invalid argument for " 173b1b8ab34Slling "this pool operation")); 174b7661cccSmmusante case EZFS_NAMETOOLONG: 175b7661cccSmmusante return (dgettext(TEXT_DOMAIN, "dataset name is too long")); 1768488aeb5Staylor case EZFS_OPENFAILED: 1778488aeb5Staylor return (dgettext(TEXT_DOMAIN, "open failed")); 1788488aeb5Staylor case EZFS_NOCAP: 1798488aeb5Staylor return (dgettext(TEXT_DOMAIN, 1808488aeb5Staylor "disk capacity information could not be retrieved")); 1818488aeb5Staylor case EZFS_LABELFAILED: 1828488aeb5Staylor return (dgettext(TEXT_DOMAIN, "write of label failed")); 183ecd6cf80Smarks case EZFS_BADWHO: 184ecd6cf80Smarks return (dgettext(TEXT_DOMAIN, "invalid user/group")); 185ecd6cf80Smarks case EZFS_BADPERM: 186ecd6cf80Smarks return (dgettext(TEXT_DOMAIN, "invalid permission")); 187ecd6cf80Smarks case EZFS_BADPERMSET: 188ecd6cf80Smarks return (dgettext(TEXT_DOMAIN, "invalid permission set name")); 189ecd6cf80Smarks case EZFS_NODELEGATION: 190ecd6cf80Smarks return (dgettext(TEXT_DOMAIN, "delegated administration is " 191ecd6cf80Smarks "disabled on pool")); 1922f8aaab3Seschrock case EZFS_BADCACHE: 1932f8aaab3Seschrock return (dgettext(TEXT_DOMAIN, "invalid or missing cache file")); 194fa94a07fSbrendan case EZFS_ISL2CACHE: 195fa94a07fSbrendan return (dgettext(TEXT_DOMAIN, "device is in use as a cache")); 196e7cbe64fSgw case EZFS_VDEVNOTSUP: 197e7cbe64fSgw return (dgettext(TEXT_DOMAIN, "vdev specification is not " 198e7cbe64fSgw "supported")); 19915e6edf1Sgw case EZFS_NOTSUP: 20015e6edf1Sgw return (dgettext(TEXT_DOMAIN, "operation not supported " 20115e6edf1Sgw "on this dataset")); 20289a89ebfSlling case EZFS_ACTIVE_SPARE: 20389a89ebfSlling return (dgettext(TEXT_DOMAIN, "pool has active shared spare " 20489a89ebfSlling "device")); 205e6ca193dSGeorge Wilson case EZFS_UNPLAYED_LOGS: 206e6ca193dSGeorge Wilson return (dgettext(TEXT_DOMAIN, "log device has unplayed intent " 207e6ca193dSGeorge Wilson "logs")); 208842727c2SChris Kirby case EZFS_REFTAG_RELE: 209842727c2SChris Kirby return (dgettext(TEXT_DOMAIN, "no such tag on this dataset")); 210842727c2SChris Kirby case EZFS_REFTAG_HOLD: 211842727c2SChris Kirby return (dgettext(TEXT_DOMAIN, "tag already exists on this " 212842727c2SChris Kirby "dataset")); 213ca45db41SChris Kirby case EZFS_TAGTOOLONG: 214ca45db41SChris Kirby return (dgettext(TEXT_DOMAIN, "tag too long")); 2159e69d7d0SLori Alt case EZFS_PIPEFAILED: 2169e69d7d0SLori Alt return (dgettext(TEXT_DOMAIN, "pipe create failed")); 2179e69d7d0SLori Alt case EZFS_THREADCREATEFAILED: 2189e69d7d0SLori Alt return (dgettext(TEXT_DOMAIN, "thread create failed")); 2191195e687SMark J Musante case EZFS_POSTSPLIT_ONLINE: 2201195e687SMark J Musante return (dgettext(TEXT_DOMAIN, "disk was split from this pool " 2211195e687SMark J Musante "into a new one")); 2223f9d6ad7SLin Ling case EZFS_SCRUBBING: 2233f9d6ad7SLin Ling return (dgettext(TEXT_DOMAIN, "currently scrubbing; " 2243f9d6ad7SLin Ling "use 'zpool scrub -s' to cancel current scrub")); 2253f9d6ad7SLin Ling case EZFS_NO_SCRUB: 2263f9d6ad7SLin Ling return (dgettext(TEXT_DOMAIN, "there is no active scrub")); 22799d5e173STim Haley case EZFS_DIFF: 22899d5e173STim Haley return (dgettext(TEXT_DOMAIN, "unable to generate diffs")); 22999d5e173STim Haley case EZFS_DIFFDATA: 23099d5e173STim Haley return (dgettext(TEXT_DOMAIN, "invalid diff data")); 231f9af39baSGeorge Wilson case EZFS_POOLREADONLY: 232f9af39baSGeorge Wilson return (dgettext(TEXT_DOMAIN, "pool is read-only")); 23399653d4eSeschrock case EZFS_UNKNOWN: 23499653d4eSeschrock return (dgettext(TEXT_DOMAIN, "unknown error")); 23599653d4eSeschrock default: 236c08432ebSeschrock assert(hdl->libzfs_error == 0); 237c08432ebSeschrock return (dgettext(TEXT_DOMAIN, "no error")); 23899653d4eSeschrock } 23999653d4eSeschrock } 24099653d4eSeschrock 24199653d4eSeschrock /*PRINTFLIKE2*/ 242fa9e4066Sahrens void 24399653d4eSeschrock zfs_error_aux(libzfs_handle_t *hdl, const char *fmt, ...) 244fa9e4066Sahrens { 245fa9e4066Sahrens va_list ap; 246fa9e4066Sahrens 247fa9e4066Sahrens va_start(ap, fmt); 248fa9e4066Sahrens 24999653d4eSeschrock (void) vsnprintf(hdl->libzfs_desc, sizeof (hdl->libzfs_desc), 25099653d4eSeschrock fmt, ap); 25199653d4eSeschrock hdl->libzfs_desc_active = 1; 25299653d4eSeschrock 25399653d4eSeschrock va_end(ap); 25499653d4eSeschrock } 25599653d4eSeschrock 25699653d4eSeschrock static void 25799653d4eSeschrock zfs_verror(libzfs_handle_t *hdl, int error, const char *fmt, va_list ap) 25899653d4eSeschrock { 25999653d4eSeschrock (void) vsnprintf(hdl->libzfs_action, sizeof (hdl->libzfs_action), 26099653d4eSeschrock fmt, ap); 26199653d4eSeschrock hdl->libzfs_error = error; 26299653d4eSeschrock 26399653d4eSeschrock if (hdl->libzfs_desc_active) 26499653d4eSeschrock hdl->libzfs_desc_active = 0; 26599653d4eSeschrock else 26699653d4eSeschrock hdl->libzfs_desc[0] = '\0'; 26799653d4eSeschrock 26899653d4eSeschrock if (hdl->libzfs_printerr) { 26999653d4eSeschrock if (error == EZFS_UNKNOWN) { 27099653d4eSeschrock (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "internal " 27199653d4eSeschrock "error: %s\n"), libzfs_error_description(hdl)); 27299653d4eSeschrock abort(); 27399653d4eSeschrock } 27499653d4eSeschrock 27599653d4eSeschrock (void) fprintf(stderr, "%s: %s\n", hdl->libzfs_action, 276b1b8ab34Slling libzfs_error_description(hdl)); 27799653d4eSeschrock if (error == EZFS_NOMEM) 27899653d4eSeschrock exit(1); 279fa9e4066Sahrens } 28099653d4eSeschrock } 28199653d4eSeschrock 282ece3d9b3Slling int 283ece3d9b3Slling zfs_error(libzfs_handle_t *hdl, int error, const char *msg) 284ece3d9b3Slling { 285ece3d9b3Slling return (zfs_error_fmt(hdl, error, "%s", msg)); 286ece3d9b3Slling } 287ece3d9b3Slling 28899653d4eSeschrock /*PRINTFLIKE3*/ 28999653d4eSeschrock int 290ece3d9b3Slling zfs_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...) 29199653d4eSeschrock { 29299653d4eSeschrock va_list ap; 29399653d4eSeschrock 29499653d4eSeschrock va_start(ap, fmt); 29599653d4eSeschrock 29699653d4eSeschrock zfs_verror(hdl, error, fmt, ap); 297fa9e4066Sahrens 298fa9e4066Sahrens va_end(ap); 29999653d4eSeschrock 30099653d4eSeschrock return (-1); 301fa9e4066Sahrens } 302fa9e4066Sahrens 30399653d4eSeschrock static int 30499653d4eSeschrock zfs_common_error(libzfs_handle_t *hdl, int error, const char *fmt, 30599653d4eSeschrock va_list ap) 30699653d4eSeschrock { 30799653d4eSeschrock switch (error) { 30899653d4eSeschrock case EPERM: 30999653d4eSeschrock case EACCES: 31099653d4eSeschrock zfs_verror(hdl, EZFS_PERM, fmt, ap); 31199653d4eSeschrock return (-1); 31299653d4eSeschrock 313ecd6cf80Smarks case ECANCELED: 314ecd6cf80Smarks zfs_verror(hdl, EZFS_NODELEGATION, fmt, ap); 315ecd6cf80Smarks return (-1); 316ecd6cf80Smarks 31799653d4eSeschrock case EIO: 31899653d4eSeschrock zfs_verror(hdl, EZFS_IO, fmt, ap); 31999653d4eSeschrock return (-1); 32099653d4eSeschrock 3216e27f868SSam Falkner case EFAULT: 3226e27f868SSam Falkner zfs_verror(hdl, EZFS_FAULT, fmt, ap); 3236e27f868SSam Falkner return (-1); 3246e27f868SSam Falkner 32599653d4eSeschrock case EINTR: 32699653d4eSeschrock zfs_verror(hdl, EZFS_INTR, fmt, ap); 32799653d4eSeschrock return (-1); 32899653d4eSeschrock } 32999653d4eSeschrock 33099653d4eSeschrock return (0); 33199653d4eSeschrock } 33299653d4eSeschrock 333ece3d9b3Slling int 334ece3d9b3Slling zfs_standard_error(libzfs_handle_t *hdl, int error, const char *msg) 335ece3d9b3Slling { 336ece3d9b3Slling return (zfs_standard_error_fmt(hdl, error, "%s", msg)); 337ece3d9b3Slling } 338ece3d9b3Slling 33999653d4eSeschrock /*PRINTFLIKE3*/ 34099653d4eSeschrock int 341ece3d9b3Slling zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...) 342fa9e4066Sahrens { 343fa9e4066Sahrens va_list ap; 344fa9e4066Sahrens 345fa9e4066Sahrens va_start(ap, fmt); 346fa9e4066Sahrens 34799653d4eSeschrock if (zfs_common_error(hdl, error, fmt, ap) != 0) { 34899653d4eSeschrock va_end(ap); 34999653d4eSeschrock return (-1); 350fa9e4066Sahrens } 351fa9e4066Sahrens 35299653d4eSeschrock switch (error) { 35399653d4eSeschrock case ENXIO: 35497d9e3a6Sck case ENODEV: 35519b94df9SMatthew Ahrens case EPIPE: 35699653d4eSeschrock zfs_verror(hdl, EZFS_IO, fmt, ap); 35799653d4eSeschrock break; 35899653d4eSeschrock 35999653d4eSeschrock case ENOENT: 36099653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 36199653d4eSeschrock "dataset does not exist")); 36299653d4eSeschrock zfs_verror(hdl, EZFS_NOENT, fmt, ap); 36399653d4eSeschrock break; 36499653d4eSeschrock 36599653d4eSeschrock case ENOSPC: 36699653d4eSeschrock case EDQUOT: 36799653d4eSeschrock zfs_verror(hdl, EZFS_NOSPC, fmt, ap); 36899653d4eSeschrock return (-1); 36999653d4eSeschrock 37099653d4eSeschrock case EEXIST: 37199653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 37299653d4eSeschrock "dataset already exists")); 37399653d4eSeschrock zfs_verror(hdl, EZFS_EXISTS, fmt, ap); 37499653d4eSeschrock break; 37599653d4eSeschrock 37699653d4eSeschrock case EBUSY: 37799653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 37899653d4eSeschrock "dataset is busy")); 37999653d4eSeschrock zfs_verror(hdl, EZFS_BUSY, fmt, ap); 38099653d4eSeschrock break; 381ecd6cf80Smarks case EROFS: 382f9af39baSGeorge Wilson zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap); 383ecd6cf80Smarks break; 384b7661cccSmmusante case ENAMETOOLONG: 385b7661cccSmmusante zfs_verror(hdl, EZFS_NAMETOOLONG, fmt, ap); 386b7661cccSmmusante break; 38740ff3960Sck case ENOTSUP: 38840ff3960Sck zfs_verror(hdl, EZFS_BADVERSION, fmt, ap); 38940ff3960Sck break; 39054d692b7SGeorge Wilson case EAGAIN: 39154d692b7SGeorge Wilson zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 39254d692b7SGeorge Wilson "pool I/O is currently suspended")); 39354d692b7SGeorge Wilson zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap); 39454d692b7SGeorge Wilson break; 39599653d4eSeschrock default: 39692241e0bSTom Erickson zfs_error_aux(hdl, strerror(error)); 39799653d4eSeschrock zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap); 39899653d4eSeschrock break; 39999653d4eSeschrock } 40099653d4eSeschrock 40199653d4eSeschrock va_end(ap); 40299653d4eSeschrock return (-1); 403fa9e4066Sahrens } 404fa9e4066Sahrens 405ece3d9b3Slling int 406ece3d9b3Slling zpool_standard_error(libzfs_handle_t *hdl, int error, const char *msg) 407ece3d9b3Slling { 408ece3d9b3Slling return (zpool_standard_error_fmt(hdl, error, "%s", msg)); 409ece3d9b3Slling } 410ece3d9b3Slling 41199653d4eSeschrock /*PRINTFLIKE3*/ 41299653d4eSeschrock int 413ece3d9b3Slling zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...) 414fa9e4066Sahrens { 41599653d4eSeschrock va_list ap; 41699653d4eSeschrock 41799653d4eSeschrock va_start(ap, fmt); 41899653d4eSeschrock 41999653d4eSeschrock if (zfs_common_error(hdl, error, fmt, ap) != 0) { 42099653d4eSeschrock va_end(ap); 42199653d4eSeschrock return (-1); 42299653d4eSeschrock } 42399653d4eSeschrock 42499653d4eSeschrock switch (error) { 42599653d4eSeschrock case ENODEV: 42699653d4eSeschrock zfs_verror(hdl, EZFS_NODEVICE, fmt, ap); 42799653d4eSeschrock break; 42899653d4eSeschrock 42999653d4eSeschrock case ENOENT: 430b1b8ab34Slling zfs_error_aux(hdl, 431b1b8ab34Slling dgettext(TEXT_DOMAIN, "no such pool or dataset")); 43299653d4eSeschrock zfs_verror(hdl, EZFS_NOENT, fmt, ap); 43399653d4eSeschrock break; 43499653d4eSeschrock 43599653d4eSeschrock case EEXIST: 43699653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 43799653d4eSeschrock "pool already exists")); 43899653d4eSeschrock zfs_verror(hdl, EZFS_EXISTS, fmt, ap); 43999653d4eSeschrock break; 44099653d4eSeschrock 44199653d4eSeschrock case EBUSY: 44299653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool is busy")); 44343afaaa8SEric Schrock zfs_verror(hdl, EZFS_BUSY, fmt, ap); 44499653d4eSeschrock break; 44599653d4eSeschrock 44699653d4eSeschrock case ENXIO: 44799653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 44899653d4eSeschrock "one or more devices is currently unavailable")); 44999653d4eSeschrock zfs_verror(hdl, EZFS_BADDEV, fmt, ap); 45099653d4eSeschrock break; 45199653d4eSeschrock 45299653d4eSeschrock case ENAMETOOLONG: 45399653d4eSeschrock zfs_verror(hdl, EZFS_DEVOVERFLOW, fmt, ap); 45499653d4eSeschrock break; 45599653d4eSeschrock 456b1b8ab34Slling case ENOTSUP: 457b1b8ab34Slling zfs_verror(hdl, EZFS_POOL_NOTSUP, fmt, ap); 458b1b8ab34Slling break; 459b1b8ab34Slling 460b1b8ab34Slling case EINVAL: 461b1b8ab34Slling zfs_verror(hdl, EZFS_POOL_INVALARG, fmt, ap); 462b1b8ab34Slling break; 463b1b8ab34Slling 464ecd6cf80Smarks case ENOSPC: 465ecd6cf80Smarks case EDQUOT: 466ecd6cf80Smarks zfs_verror(hdl, EZFS_NOSPC, fmt, ap); 467ecd6cf80Smarks return (-1); 468f9af39baSGeorge Wilson 46954d692b7SGeorge Wilson case EAGAIN: 47054d692b7SGeorge Wilson zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 47154d692b7SGeorge Wilson "pool I/O is currently suspended")); 47254d692b7SGeorge Wilson zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap); 47354d692b7SGeorge Wilson break; 474ecd6cf80Smarks 475f9af39baSGeorge Wilson case EROFS: 476f9af39baSGeorge Wilson zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap); 477f9af39baSGeorge Wilson break; 478f9af39baSGeorge Wilson 47999653d4eSeschrock default: 48099653d4eSeschrock zfs_error_aux(hdl, strerror(error)); 48199653d4eSeschrock zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap); 48299653d4eSeschrock } 48399653d4eSeschrock 48499653d4eSeschrock va_end(ap); 48599653d4eSeschrock return (-1); 486fa9e4066Sahrens } 487fa9e4066Sahrens 488fa9e4066Sahrens /* 489fa9e4066Sahrens * Display an out of memory error message and abort the current program. 490fa9e4066Sahrens */ 49199653d4eSeschrock int 49299653d4eSeschrock no_memory(libzfs_handle_t *hdl) 493fa9e4066Sahrens { 49499653d4eSeschrock return (zfs_error(hdl, EZFS_NOMEM, "internal error")); 495fa9e4066Sahrens } 496fa9e4066Sahrens 497fa9e4066Sahrens /* 498fa9e4066Sahrens * A safe form of malloc() which will die if the allocation fails. 499fa9e4066Sahrens */ 500fa9e4066Sahrens void * 50199653d4eSeschrock zfs_alloc(libzfs_handle_t *hdl, size_t size) 502fa9e4066Sahrens { 503fa9e4066Sahrens void *data; 504fa9e4066Sahrens 505fa9e4066Sahrens if ((data = calloc(1, size)) == NULL) 50699653d4eSeschrock (void) no_memory(hdl); 507fa9e4066Sahrens 508fa9e4066Sahrens return (data); 509fa9e4066Sahrens } 510fa9e4066Sahrens 51199d5e173STim Haley /* 51299d5e173STim Haley * A safe form of asprintf() which will die if the allocation fails. 51399d5e173STim Haley */ 51499d5e173STim Haley /*PRINTFLIKE2*/ 51599d5e173STim Haley char * 51699d5e173STim Haley zfs_asprintf(libzfs_handle_t *hdl, const char *fmt, ...) 51799d5e173STim Haley { 51899d5e173STim Haley va_list ap; 51999d5e173STim Haley char *ret; 52099d5e173STim Haley int err; 52199d5e173STim Haley 52299d5e173STim Haley va_start(ap, fmt); 52399d5e173STim Haley 52499d5e173STim Haley err = vasprintf(&ret, fmt, ap); 52599d5e173STim Haley 52699d5e173STim Haley va_end(ap); 52799d5e173STim Haley 52899d5e173STim Haley if (err < 0) 52999d5e173STim Haley (void) no_memory(hdl); 53099d5e173STim Haley 53199d5e173STim Haley return (ret); 53299d5e173STim Haley } 53399d5e173STim Haley 534e9dbad6fSeschrock /* 535e9dbad6fSeschrock * A safe form of realloc(), which also zeroes newly allocated space. 536e9dbad6fSeschrock */ 537e9dbad6fSeschrock void * 538e9dbad6fSeschrock zfs_realloc(libzfs_handle_t *hdl, void *ptr, size_t oldsize, size_t newsize) 539e9dbad6fSeschrock { 540e9dbad6fSeschrock void *ret; 541e9dbad6fSeschrock 542e9dbad6fSeschrock if ((ret = realloc(ptr, newsize)) == NULL) { 543e9dbad6fSeschrock (void) no_memory(hdl); 544e9dbad6fSeschrock return (NULL); 545e9dbad6fSeschrock } 546e9dbad6fSeschrock 547e9dbad6fSeschrock bzero((char *)ret + oldsize, (newsize - oldsize)); 548e9dbad6fSeschrock return (ret); 549e9dbad6fSeschrock } 550e9dbad6fSeschrock 551fa9e4066Sahrens /* 552fa9e4066Sahrens * A safe form of strdup() which will die if the allocation fails. 553fa9e4066Sahrens */ 554fa9e4066Sahrens char * 55599653d4eSeschrock zfs_strdup(libzfs_handle_t *hdl, const char *str) 556fa9e4066Sahrens { 557fa9e4066Sahrens char *ret; 558fa9e4066Sahrens 559fa9e4066Sahrens if ((ret = strdup(str)) == NULL) 56099653d4eSeschrock (void) no_memory(hdl); 561fa9e4066Sahrens 562fa9e4066Sahrens return (ret); 563fa9e4066Sahrens } 564fa9e4066Sahrens 565fa9e4066Sahrens /* 566fa9e4066Sahrens * Convert a number to an appropriately human-readable output. 567fa9e4066Sahrens */ 568fa9e4066Sahrens void 569fa9e4066Sahrens zfs_nicenum(uint64_t num, char *buf, size_t buflen) 570fa9e4066Sahrens { 571fa9e4066Sahrens uint64_t n = num; 572fa9e4066Sahrens int index = 0; 573fa9e4066Sahrens char u; 574fa9e4066Sahrens 575fa9e4066Sahrens while (n >= 1024) { 5765c709891Seschrock n /= 1024; 577fa9e4066Sahrens index++; 578fa9e4066Sahrens } 579fa9e4066Sahrens 580fa9e4066Sahrens u = " KMGTPE"[index]; 581fa9e4066Sahrens 5825c709891Seschrock if (index == 0) { 583fa9e4066Sahrens (void) snprintf(buf, buflen, "%llu", n); 5845c709891Seschrock } else if ((num & ((1ULL << 10 * index) - 1)) == 0) { 5855c709891Seschrock /* 5865c709891Seschrock * If this is an even multiple of the base, always display 5875c709891Seschrock * without any decimal precision. 5885c709891Seschrock */ 589fa9e4066Sahrens (void) snprintf(buf, buflen, "%llu%c", n, u); 5905c709891Seschrock } else { 5915c709891Seschrock /* 5925c709891Seschrock * We want to choose a precision that reflects the best choice 5935c709891Seschrock * for fitting in 5 characters. This can get rather tricky when 5945c709891Seschrock * we have numbers that are very close to an order of magnitude. 5955c709891Seschrock * For example, when displaying 10239 (which is really 9.999K), 5965c709891Seschrock * we want only a single place of precision for 10.0K. We could 5975c709891Seschrock * develop some complex heuristics for this, but it's much 5985c709891Seschrock * easier just to try each combination in turn. 5995c709891Seschrock */ 6005c709891Seschrock int i; 6015c709891Seschrock for (i = 2; i >= 0; i--) { 6023d7072f8Seschrock if (snprintf(buf, buflen, "%.*f%c", i, 6033d7072f8Seschrock (double)num / (1ULL << 10 * index), u) <= 5) 6045c709891Seschrock break; 6055c709891Seschrock } 6065c709891Seschrock } 607fa9e4066Sahrens } 60899653d4eSeschrock 60999653d4eSeschrock void 61099653d4eSeschrock libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr) 61199653d4eSeschrock { 61299653d4eSeschrock hdl->libzfs_printerr = printerr; 61399653d4eSeschrock } 61499653d4eSeschrock 61599653d4eSeschrock libzfs_handle_t * 61699653d4eSeschrock libzfs_init(void) 61799653d4eSeschrock { 61899653d4eSeschrock libzfs_handle_t *hdl; 61999653d4eSeschrock 62099d5e173STim Haley if ((hdl = calloc(1, sizeof (libzfs_handle_t))) == NULL) { 62199653d4eSeschrock return (NULL); 62299653d4eSeschrock } 62399653d4eSeschrock 624c08432ebSeschrock if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) { 62599653d4eSeschrock free(hdl); 62699653d4eSeschrock return (NULL); 62799653d4eSeschrock } 62899653d4eSeschrock 629bde3d612SSimon Klinkert if ((hdl->libzfs_mnttab = fopen(MNTTAB, "rF")) == NULL) { 63099653d4eSeschrock (void) close(hdl->libzfs_fd); 63199653d4eSeschrock free(hdl); 63299653d4eSeschrock return (NULL); 63399653d4eSeschrock } 63499653d4eSeschrock 635bde3d612SSimon Klinkert hdl->libzfs_sharetab = fopen("/etc/dfs/sharetab", "rF"); 63699653d4eSeschrock 6374445fffbSMatthew Ahrens if (libzfs_core_init() != 0) { 6384445fffbSMatthew Ahrens (void) close(hdl->libzfs_fd); 6394445fffbSMatthew Ahrens (void) fclose(hdl->libzfs_mnttab); 6404445fffbSMatthew Ahrens (void) fclose(hdl->libzfs_sharetab); 6414445fffbSMatthew Ahrens free(hdl); 6424445fffbSMatthew Ahrens return (NULL); 6434445fffbSMatthew Ahrens } 6444445fffbSMatthew Ahrens 64591ebeef5Sahrens zfs_prop_init(); 646990b4856Slling zpool_prop_init(); 647ad135b5dSChristopher Siden zpool_feature_init(); 648b2634b9cSEric Taylor libzfs_mnttab_init(hdl); 64991ebeef5Sahrens 65099653d4eSeschrock return (hdl); 65199653d4eSeschrock } 65299653d4eSeschrock 65399653d4eSeschrock void 65499653d4eSeschrock libzfs_fini(libzfs_handle_t *hdl) 65599653d4eSeschrock { 65699653d4eSeschrock (void) close(hdl->libzfs_fd); 65799653d4eSeschrock if (hdl->libzfs_mnttab) 65899653d4eSeschrock (void) fclose(hdl->libzfs_mnttab); 65999653d4eSeschrock if (hdl->libzfs_sharetab) 66099653d4eSeschrock (void) fclose(hdl->libzfs_sharetab); 66167331909Sdougm zfs_uninit_libshare(hdl); 66229ab75c9Srm zpool_free_handles(hdl); 663069f55e2SEric Schrock libzfs_fru_clear(hdl, B_TRUE); 66499653d4eSeschrock namespace_clear(hdl); 665b2634b9cSEric Taylor libzfs_mnttab_fini(hdl); 6664445fffbSMatthew Ahrens libzfs_core_fini(); 66799653d4eSeschrock free(hdl); 66899653d4eSeschrock } 66999653d4eSeschrock 67099653d4eSeschrock libzfs_handle_t * 67199653d4eSeschrock zpool_get_handle(zpool_handle_t *zhp) 67299653d4eSeschrock { 67399653d4eSeschrock return (zhp->zpool_hdl); 67499653d4eSeschrock } 67599653d4eSeschrock 67699653d4eSeschrock libzfs_handle_t * 67799653d4eSeschrock zfs_get_handle(zfs_handle_t *zhp) 67899653d4eSeschrock { 67999653d4eSeschrock return (zhp->zfs_hdl); 68099653d4eSeschrock } 681e9dbad6fSeschrock 682d5b5bb25SRich Morris zpool_handle_t * 683d5b5bb25SRich Morris zfs_get_pool_handle(const zfs_handle_t *zhp) 684d5b5bb25SRich Morris { 685d5b5bb25SRich Morris return (zhp->zpool_hdl); 686d5b5bb25SRich Morris } 687d5b5bb25SRich Morris 6885aba80dbSck /* 6895aba80dbSck * Given a name, determine whether or not it's a valid path 6905aba80dbSck * (starts with '/' or "./"). If so, walk the mnttab trying 6915aba80dbSck * to match the device number. If not, treat the path as an 6925aba80dbSck * fs/vol/snap name. 6935aba80dbSck */ 6945aba80dbSck zfs_handle_t * 6955aba80dbSck zfs_path_to_zhandle(libzfs_handle_t *hdl, char *path, zfs_type_t argtype) 6965aba80dbSck { 6975aba80dbSck struct stat64 statbuf; 6985aba80dbSck struct extmnttab entry; 6995aba80dbSck int ret; 7005aba80dbSck 7015aba80dbSck if (path[0] != '/' && strncmp(path, "./", strlen("./")) != 0) { 7025aba80dbSck /* 7035aba80dbSck * It's not a valid path, assume it's a name of type 'argtype'. 7045aba80dbSck */ 7055aba80dbSck return (zfs_open(hdl, path, argtype)); 7065aba80dbSck } 7075aba80dbSck 7085aba80dbSck if (stat64(path, &statbuf) != 0) { 7095aba80dbSck (void) fprintf(stderr, "%s: %s\n", path, strerror(errno)); 7105aba80dbSck return (NULL); 7115aba80dbSck } 7125aba80dbSck 7135aba80dbSck rewind(hdl->libzfs_mnttab); 7145aba80dbSck while ((ret = getextmntent(hdl->libzfs_mnttab, &entry, 0)) == 0) { 7155aba80dbSck if (makedevice(entry.mnt_major, entry.mnt_minor) == 7165aba80dbSck statbuf.st_dev) { 7175aba80dbSck break; 7185aba80dbSck } 7195aba80dbSck } 7205aba80dbSck if (ret != 0) { 7215aba80dbSck return (NULL); 7225aba80dbSck } 7235aba80dbSck 7245aba80dbSck if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 7255aba80dbSck (void) fprintf(stderr, gettext("'%s': not a ZFS filesystem\n"), 7265aba80dbSck path); 7275aba80dbSck return (NULL); 7285aba80dbSck } 7295aba80dbSck 7305aba80dbSck return (zfs_open(hdl, entry.mnt_special, ZFS_TYPE_FILESYSTEM)); 7315aba80dbSck } 7325aba80dbSck 733e9dbad6fSeschrock /* 734e9dbad6fSeschrock * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from 735e9dbad6fSeschrock * an ioctl(). 736e9dbad6fSeschrock */ 737e9dbad6fSeschrock int 738e9dbad6fSeschrock zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len) 739e9dbad6fSeschrock { 740e9dbad6fSeschrock if (len == 0) 7414b964adaSGeorge Wilson len = 16 * 1024; 742e9dbad6fSeschrock zc->zc_nvlist_dst_size = len; 74330925561SChris Williamson zc->zc_nvlist_dst = 74430925561SChris Williamson (uint64_t)(uintptr_t)zfs_alloc(hdl, zc->zc_nvlist_dst_size); 74530925561SChris Williamson if (zc->zc_nvlist_dst == 0) 746e9dbad6fSeschrock return (-1); 747e9dbad6fSeschrock 748e9dbad6fSeschrock return (0); 749e9dbad6fSeschrock } 750e9dbad6fSeschrock 751e9dbad6fSeschrock /* 752e9dbad6fSeschrock * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will 753e9dbad6fSeschrock * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was 754e9dbad6fSeschrock * filled in by the kernel to indicate the actual required size. 755e9dbad6fSeschrock */ 756e9dbad6fSeschrock int 757e9dbad6fSeschrock zcmd_expand_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc) 758e9dbad6fSeschrock { 759e9dbad6fSeschrock free((void *)(uintptr_t)zc->zc_nvlist_dst); 76030925561SChris Williamson zc->zc_nvlist_dst = 76130925561SChris Williamson (uint64_t)(uintptr_t)zfs_alloc(hdl, zc->zc_nvlist_dst_size); 76230925561SChris Williamson if (zc->zc_nvlist_dst == 0) 763e9dbad6fSeschrock return (-1); 764e9dbad6fSeschrock 765e9dbad6fSeschrock return (0); 766e9dbad6fSeschrock } 767e9dbad6fSeschrock 768e9dbad6fSeschrock /* 769a2eea2e1Sahrens * Called to free the src and dst nvlists stored in the command structure. 770e9dbad6fSeschrock */ 771e9dbad6fSeschrock void 772e9dbad6fSeschrock zcmd_free_nvlists(zfs_cmd_t *zc) 773e9dbad6fSeschrock { 774990b4856Slling free((void *)(uintptr_t)zc->zc_nvlist_conf); 775e9dbad6fSeschrock free((void *)(uintptr_t)zc->zc_nvlist_src); 776e9dbad6fSeschrock free((void *)(uintptr_t)zc->zc_nvlist_dst); 77730925561SChris Williamson zc->zc_nvlist_conf = NULL; 77830925561SChris Williamson zc->zc_nvlist_src = NULL; 77930925561SChris Williamson zc->zc_nvlist_dst = NULL; 780e9dbad6fSeschrock } 781e9dbad6fSeschrock 782990b4856Slling static int 783990b4856Slling zcmd_write_nvlist_com(libzfs_handle_t *hdl, uint64_t *outnv, uint64_t *outlen, 784990b4856Slling nvlist_t *nvl) 785e9dbad6fSeschrock { 786e9dbad6fSeschrock char *packed; 787e9dbad6fSeschrock size_t len; 788e9dbad6fSeschrock 789e9dbad6fSeschrock verify(nvlist_size(nvl, &len, NV_ENCODE_NATIVE) == 0); 790e9dbad6fSeschrock 791e9dbad6fSeschrock if ((packed = zfs_alloc(hdl, len)) == NULL) 792e9dbad6fSeschrock return (-1); 793e9dbad6fSeschrock 794e9dbad6fSeschrock verify(nvlist_pack(nvl, &packed, &len, NV_ENCODE_NATIVE, 0) == 0); 795e9dbad6fSeschrock 796990b4856Slling *outnv = (uint64_t)(uintptr_t)packed; 797990b4856Slling *outlen = len; 798e9dbad6fSeschrock 799e9dbad6fSeschrock return (0); 800e9dbad6fSeschrock } 801e9dbad6fSeschrock 802990b4856Slling int 803990b4856Slling zcmd_write_conf_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl) 804990b4856Slling { 805990b4856Slling return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_conf, 806990b4856Slling &zc->zc_nvlist_conf_size, nvl)); 807990b4856Slling } 808990b4856Slling 809990b4856Slling int 810990b4856Slling zcmd_write_src_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl) 811990b4856Slling { 812990b4856Slling return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_src, 813990b4856Slling &zc->zc_nvlist_src_size, nvl)); 814990b4856Slling } 815990b4856Slling 816e9dbad6fSeschrock /* 817e9dbad6fSeschrock * Unpacks an nvlist from the ZFS ioctl command structure. 818e9dbad6fSeschrock */ 819e9dbad6fSeschrock int 820e9dbad6fSeschrock zcmd_read_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t **nvlp) 821e9dbad6fSeschrock { 822e9dbad6fSeschrock if (nvlist_unpack((void *)(uintptr_t)zc->zc_nvlist_dst, 823e9dbad6fSeschrock zc->zc_nvlist_dst_size, nvlp, 0) != 0) 824e9dbad6fSeschrock return (no_memory(hdl)); 825e9dbad6fSeschrock 826e9dbad6fSeschrock return (0); 827e9dbad6fSeschrock } 828b1b8ab34Slling 829990b4856Slling int 830990b4856Slling zfs_ioctl(libzfs_handle_t *hdl, int request, zfs_cmd_t *zc) 831990b4856Slling { 8324445fffbSMatthew Ahrens return (ioctl(hdl->libzfs_fd, request, zc)); 833990b4856Slling } 834990b4856Slling 835990b4856Slling /* 836990b4856Slling * ================================================================ 837990b4856Slling * API shared by zfs and zpool property management 838990b4856Slling * ================================================================ 839990b4856Slling */ 840990b4856Slling 841b1b8ab34Slling static void 842990b4856Slling zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type) 843b1b8ab34Slling { 844990b4856Slling zprop_list_t *pl = cbp->cb_proplist; 845b1b8ab34Slling int i; 846b1b8ab34Slling char *title; 847b1b8ab34Slling size_t len; 848b1b8ab34Slling 849b1b8ab34Slling cbp->cb_first = B_FALSE; 850b1b8ab34Slling if (cbp->cb_scripted) 851b1b8ab34Slling return; 852b1b8ab34Slling 853b1b8ab34Slling /* 854b1b8ab34Slling * Start with the length of the column headers. 855b1b8ab34Slling */ 856b1b8ab34Slling cbp->cb_colwidths[GET_COL_NAME] = strlen(dgettext(TEXT_DOMAIN, "NAME")); 857b1b8ab34Slling cbp->cb_colwidths[GET_COL_PROPERTY] = strlen(dgettext(TEXT_DOMAIN, 858b1b8ab34Slling "PROPERTY")); 859b1b8ab34Slling cbp->cb_colwidths[GET_COL_VALUE] = strlen(dgettext(TEXT_DOMAIN, 860b1b8ab34Slling "VALUE")); 86192241e0bSTom Erickson cbp->cb_colwidths[GET_COL_RECVD] = strlen(dgettext(TEXT_DOMAIN, 86292241e0bSTom Erickson "RECEIVED")); 863b1b8ab34Slling cbp->cb_colwidths[GET_COL_SOURCE] = strlen(dgettext(TEXT_DOMAIN, 864b1b8ab34Slling "SOURCE")); 865b1b8ab34Slling 866deb8317bSMark J Musante /* first property is always NAME */ 867deb8317bSMark J Musante assert(cbp->cb_proplist->pl_prop == 868deb8317bSMark J Musante ((type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : ZFS_PROP_NAME)); 869deb8317bSMark J Musante 870b1b8ab34Slling /* 871b1b8ab34Slling * Go through and calculate the widths for each column. For the 872b1b8ab34Slling * 'source' column, we kludge it up by taking the worst-case scenario of 873b1b8ab34Slling * inheriting from the longest name. This is acceptable because in the 874b1b8ab34Slling * majority of cases 'SOURCE' is the last column displayed, and we don't 875b1b8ab34Slling * use the width anyway. Note that the 'VALUE' column can be oversized, 87692241e0bSTom Erickson * if the name of the property is much longer than any values we find. 877b1b8ab34Slling */ 878b1b8ab34Slling for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) { 879b1b8ab34Slling /* 880b1b8ab34Slling * 'PROPERTY' column 881b1b8ab34Slling */ 882990b4856Slling if (pl->pl_prop != ZPROP_INVAL) { 883990b4856Slling const char *propname = (type == ZFS_TYPE_POOL) ? 884990b4856Slling zpool_prop_to_name(pl->pl_prop) : 885990b4856Slling zfs_prop_to_name(pl->pl_prop); 886990b4856Slling 887990b4856Slling len = strlen(propname); 888b1b8ab34Slling if (len > cbp->cb_colwidths[GET_COL_PROPERTY]) 889b1b8ab34Slling cbp->cb_colwidths[GET_COL_PROPERTY] = len; 890b1b8ab34Slling } else { 891b1b8ab34Slling len = strlen(pl->pl_user_prop); 892b1b8ab34Slling if (len > cbp->cb_colwidths[GET_COL_PROPERTY]) 893b1b8ab34Slling cbp->cb_colwidths[GET_COL_PROPERTY] = len; 894b1b8ab34Slling } 895b1b8ab34Slling 896b1b8ab34Slling /* 897deb8317bSMark J Musante * 'VALUE' column. The first property is always the 'name' 898deb8317bSMark J Musante * property that was tacked on either by /sbin/zfs's 899deb8317bSMark J Musante * zfs_do_get() or when calling zprop_expand_list(), so we 900deb8317bSMark J Musante * ignore its width. If the user specified the name property 901deb8317bSMark J Musante * to display, then it will be later in the list in any case. 902b1b8ab34Slling */ 903deb8317bSMark J Musante if (pl != cbp->cb_proplist && 904b1b8ab34Slling pl->pl_width > cbp->cb_colwidths[GET_COL_VALUE]) 905b1b8ab34Slling cbp->cb_colwidths[GET_COL_VALUE] = pl->pl_width; 906b1b8ab34Slling 90792241e0bSTom Erickson /* 'RECEIVED' column. */ 90892241e0bSTom Erickson if (pl != cbp->cb_proplist && 90992241e0bSTom Erickson pl->pl_recvd_width > cbp->cb_colwidths[GET_COL_RECVD]) 91092241e0bSTom Erickson cbp->cb_colwidths[GET_COL_RECVD] = pl->pl_recvd_width; 91192241e0bSTom Erickson 912b1b8ab34Slling /* 913b1b8ab34Slling * 'NAME' and 'SOURCE' columns 914b1b8ab34Slling */ 915990b4856Slling if (pl->pl_prop == (type == ZFS_TYPE_POOL ? ZPOOL_PROP_NAME : 916990b4856Slling ZFS_PROP_NAME) && 917b1b8ab34Slling pl->pl_width > cbp->cb_colwidths[GET_COL_NAME]) { 918b1b8ab34Slling cbp->cb_colwidths[GET_COL_NAME] = pl->pl_width; 919b1b8ab34Slling cbp->cb_colwidths[GET_COL_SOURCE] = pl->pl_width + 920b1b8ab34Slling strlen(dgettext(TEXT_DOMAIN, "inherited from")); 921b1b8ab34Slling } 922b1b8ab34Slling } 923b1b8ab34Slling 924b1b8ab34Slling /* 925b1b8ab34Slling * Now go through and print the headers. 926b1b8ab34Slling */ 92792241e0bSTom Erickson for (i = 0; i < ZFS_GET_NCOLS; i++) { 928b1b8ab34Slling switch (cbp->cb_columns[i]) { 929b1b8ab34Slling case GET_COL_NAME: 930b1b8ab34Slling title = dgettext(TEXT_DOMAIN, "NAME"); 931b1b8ab34Slling break; 932b1b8ab34Slling case GET_COL_PROPERTY: 933b1b8ab34Slling title = dgettext(TEXT_DOMAIN, "PROPERTY"); 934b1b8ab34Slling break; 935b1b8ab34Slling case GET_COL_VALUE: 936b1b8ab34Slling title = dgettext(TEXT_DOMAIN, "VALUE"); 937b1b8ab34Slling break; 93892241e0bSTom Erickson case GET_COL_RECVD: 93992241e0bSTom Erickson title = dgettext(TEXT_DOMAIN, "RECEIVED"); 94092241e0bSTom Erickson break; 941b1b8ab34Slling case GET_COL_SOURCE: 942b1b8ab34Slling title = dgettext(TEXT_DOMAIN, "SOURCE"); 943b1b8ab34Slling break; 944b1b8ab34Slling default: 945b1b8ab34Slling title = NULL; 946b1b8ab34Slling } 947b1b8ab34Slling 948b1b8ab34Slling if (title != NULL) { 94992241e0bSTom Erickson if (i == (ZFS_GET_NCOLS - 1) || 95092241e0bSTom Erickson cbp->cb_columns[i + 1] == GET_COL_NONE) 951b1b8ab34Slling (void) printf("%s", title); 952b1b8ab34Slling else 953b1b8ab34Slling (void) printf("%-*s ", 954b1b8ab34Slling cbp->cb_colwidths[cbp->cb_columns[i]], 955b1b8ab34Slling title); 956b1b8ab34Slling } 957b1b8ab34Slling } 958b1b8ab34Slling (void) printf("\n"); 959b1b8ab34Slling } 960b1b8ab34Slling 961b1b8ab34Slling /* 962b1b8ab34Slling * Display a single line of output, according to the settings in the callback 963b1b8ab34Slling * structure. 964b1b8ab34Slling */ 965b1b8ab34Slling void 966990b4856Slling zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp, 967990b4856Slling const char *propname, const char *value, zprop_source_t sourcetype, 96892241e0bSTom Erickson const char *source, const char *recvd_value) 969b1b8ab34Slling { 970b1b8ab34Slling int i; 971f83b46baSPaul Dagnelie const char *str = NULL; 972b1b8ab34Slling char buf[128]; 973b1b8ab34Slling 974b1b8ab34Slling /* 975b1b8ab34Slling * Ignore those source types that the user has chosen to ignore. 976b1b8ab34Slling */ 977b1b8ab34Slling if ((sourcetype & cbp->cb_sources) == 0) 978b1b8ab34Slling return; 979b1b8ab34Slling 980b1b8ab34Slling if (cbp->cb_first) 981990b4856Slling zprop_print_headers(cbp, cbp->cb_type); 982b1b8ab34Slling 98392241e0bSTom Erickson for (i = 0; i < ZFS_GET_NCOLS; i++) { 984b1b8ab34Slling switch (cbp->cb_columns[i]) { 985b1b8ab34Slling case GET_COL_NAME: 986b1b8ab34Slling str = name; 987b1b8ab34Slling break; 988b1b8ab34Slling 989b1b8ab34Slling case GET_COL_PROPERTY: 990b1b8ab34Slling str = propname; 991b1b8ab34Slling break; 992b1b8ab34Slling 993b1b8ab34Slling case GET_COL_VALUE: 994b1b8ab34Slling str = value; 995b1b8ab34Slling break; 996b1b8ab34Slling 997b1b8ab34Slling case GET_COL_SOURCE: 998b1b8ab34Slling switch (sourcetype) { 999990b4856Slling case ZPROP_SRC_NONE: 1000b1b8ab34Slling str = "-"; 1001b1b8ab34Slling break; 1002b1b8ab34Slling 1003990b4856Slling case ZPROP_SRC_DEFAULT: 1004b1b8ab34Slling str = "default"; 1005b1b8ab34Slling break; 1006b1b8ab34Slling 1007990b4856Slling case ZPROP_SRC_LOCAL: 1008b1b8ab34Slling str = "local"; 1009b1b8ab34Slling break; 1010b1b8ab34Slling 1011990b4856Slling case ZPROP_SRC_TEMPORARY: 1012b1b8ab34Slling str = "temporary"; 1013b1b8ab34Slling break; 1014b1b8ab34Slling 1015990b4856Slling case ZPROP_SRC_INHERITED: 1016b1b8ab34Slling (void) snprintf(buf, sizeof (buf), 1017b1b8ab34Slling "inherited from %s", source); 1018b1b8ab34Slling str = buf; 1019b1b8ab34Slling break; 102092241e0bSTom Erickson case ZPROP_SRC_RECEIVED: 102192241e0bSTom Erickson str = "received"; 102292241e0bSTom Erickson break; 1023*88f61deeSIgor Kozhukhov 1024*88f61deeSIgor Kozhukhov default: 1025*88f61deeSIgor Kozhukhov str = NULL; 1026*88f61deeSIgor Kozhukhov assert(!"unhandled zprop_source_t"); 1027b1b8ab34Slling } 1028b1b8ab34Slling break; 1029b1b8ab34Slling 103092241e0bSTom Erickson case GET_COL_RECVD: 103192241e0bSTom Erickson str = (recvd_value == NULL ? "-" : recvd_value); 103292241e0bSTom Erickson break; 103392241e0bSTom Erickson 1034b1b8ab34Slling default: 1035b1b8ab34Slling continue; 1036b1b8ab34Slling } 1037b1b8ab34Slling 103892241e0bSTom Erickson if (cbp->cb_columns[i + 1] == GET_COL_NONE) 1039b1b8ab34Slling (void) printf("%s", str); 1040b1b8ab34Slling else if (cbp->cb_scripted) 1041b1b8ab34Slling (void) printf("%s\t", str); 1042b1b8ab34Slling else 1043b1b8ab34Slling (void) printf("%-*s ", 1044b1b8ab34Slling cbp->cb_colwidths[cbp->cb_columns[i]], 1045b1b8ab34Slling str); 1046b1b8ab34Slling } 1047b1b8ab34Slling 1048b1b8ab34Slling (void) printf("\n"); 1049b1b8ab34Slling } 1050ecd6cf80Smarks 1051990b4856Slling /* 1052990b4856Slling * Given a numeric suffix, convert the value into a number of bits that the 1053990b4856Slling * resulting value must be shifted. 1054990b4856Slling */ 1055990b4856Slling static int 1056990b4856Slling str2shift(libzfs_handle_t *hdl, const char *buf) 1057990b4856Slling { 1058990b4856Slling const char *ends = "BKMGTPEZ"; 1059990b4856Slling int i; 1060990b4856Slling 1061990b4856Slling if (buf[0] == '\0') 1062990b4856Slling return (0); 1063990b4856Slling for (i = 0; i < strlen(ends); i++) { 1064990b4856Slling if (toupper(buf[0]) == ends[i]) 1065990b4856Slling break; 1066990b4856Slling } 1067990b4856Slling if (i == strlen(ends)) { 1068990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1069990b4856Slling "invalid numeric suffix '%s'"), buf); 1070990b4856Slling return (-1); 1071990b4856Slling } 1072990b4856Slling 1073990b4856Slling /* 1074990b4856Slling * We want to allow trailing 'b' characters for 'GB' or 'Mb'. But don't 1075990b4856Slling * allow 'BB' - that's just weird. 1076990b4856Slling */ 1077990b4856Slling if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0' && 1078990b4856Slling toupper(buf[0]) != 'B')) 1079990b4856Slling return (10*i); 1080990b4856Slling 1081990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1082990b4856Slling "invalid numeric suffix '%s'"), buf); 1083990b4856Slling return (-1); 1084990b4856Slling } 1085990b4856Slling 1086990b4856Slling /* 1087990b4856Slling * Convert a string of the form '100G' into a real number. Used when setting 1088990b4856Slling * properties or creating a volume. 'buf' is used to place an extended error 1089990b4856Slling * message for the caller to use. 1090990b4856Slling */ 1091ecd6cf80Smarks int 1092990b4856Slling zfs_nicestrtonum(libzfs_handle_t *hdl, const char *value, uint64_t *num) 1093ecd6cf80Smarks { 1094990b4856Slling char *end; 1095990b4856Slling int shift; 1096ecd6cf80Smarks 1097990b4856Slling *num = 0; 1098990b4856Slling 1099990b4856Slling /* Check to see if this looks like a number. */ 1100990b4856Slling if ((value[0] < '0' || value[0] > '9') && value[0] != '.') { 1101990b4856Slling if (hdl) 1102990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1103990b4856Slling "bad numeric value '%s'"), value); 1104990b4856Slling return (-1); 1105ecd6cf80Smarks } 1106ecd6cf80Smarks 1107069f55e2SEric Schrock /* Rely on strtoull() to process the numeric portion. */ 1108990b4856Slling errno = 0; 1109f67f35c3SEric Schrock *num = strtoull(value, &end, 10); 1110990b4856Slling 1111990b4856Slling /* 1112990b4856Slling * Check for ERANGE, which indicates that the value is too large to fit 1113990b4856Slling * in a 64-bit value. 1114990b4856Slling */ 1115990b4856Slling if (errno == ERANGE) { 1116990b4856Slling if (hdl) 1117990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1118990b4856Slling "numeric value is too large")); 1119990b4856Slling return (-1); 1120990b4856Slling } 1121990b4856Slling 1122990b4856Slling /* 1123990b4856Slling * If we have a decimal value, then do the computation with floating 1124990b4856Slling * point arithmetic. Otherwise, use standard arithmetic. 1125990b4856Slling */ 1126990b4856Slling if (*end == '.') { 1127990b4856Slling double fval = strtod(value, &end); 1128990b4856Slling 1129990b4856Slling if ((shift = str2shift(hdl, end)) == -1) 1130990b4856Slling return (-1); 1131990b4856Slling 1132990b4856Slling fval *= pow(2, shift); 1133990b4856Slling 1134990b4856Slling if (fval > UINT64_MAX) { 1135990b4856Slling if (hdl) 1136990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1137990b4856Slling "numeric value is too large")); 1138990b4856Slling return (-1); 1139990b4856Slling } 1140990b4856Slling 1141990b4856Slling *num = (uint64_t)fval; 1142990b4856Slling } else { 1143990b4856Slling if ((shift = str2shift(hdl, end)) == -1) 1144990b4856Slling return (-1); 1145990b4856Slling 1146990b4856Slling /* Check for overflow */ 1147990b4856Slling if (shift >= 64 || (*num << shift) >> shift != *num) { 1148990b4856Slling if (hdl) 1149990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1150990b4856Slling "numeric value is too large")); 1151990b4856Slling return (-1); 1152990b4856Slling } 1153990b4856Slling 1154990b4856Slling *num <<= shift; 1155990b4856Slling } 1156990b4856Slling 1157990b4856Slling return (0); 1158990b4856Slling } 1159990b4856Slling 1160990b4856Slling /* 1161990b4856Slling * Given a propname=value nvpair to set, parse any numeric properties 1162990b4856Slling * (index, boolean, etc) if they are specified as strings and add the 1163990b4856Slling * resulting nvpair to the returned nvlist. 1164990b4856Slling * 1165990b4856Slling * At the DSL layer, all properties are either 64-bit numbers or strings. 1166990b4856Slling * We want the user to be able to ignore this fact and specify properties 1167990b4856Slling * as native values (numbers, for example) or as strings (to simplify 1168990b4856Slling * command line utilities). This also handles converting index types 1169990b4856Slling * (compression, checksum, etc) from strings to their on-disk index. 1170990b4856Slling */ 1171990b4856Slling int 1172990b4856Slling zprop_parse_value(libzfs_handle_t *hdl, nvpair_t *elem, int prop, 1173990b4856Slling zfs_type_t type, nvlist_t *ret, char **svalp, uint64_t *ivalp, 1174990b4856Slling const char *errbuf) 1175990b4856Slling { 1176990b4856Slling data_type_t datatype = nvpair_type(elem); 1177990b4856Slling zprop_type_t proptype; 1178990b4856Slling const char *propname; 1179990b4856Slling char *value; 1180990b4856Slling boolean_t isnone = B_FALSE; 1181990b4856Slling 1182990b4856Slling if (type == ZFS_TYPE_POOL) { 1183990b4856Slling proptype = zpool_prop_get_type(prop); 1184990b4856Slling propname = zpool_prop_to_name(prop); 1185990b4856Slling } else { 1186990b4856Slling proptype = zfs_prop_get_type(prop); 1187990b4856Slling propname = zfs_prop_to_name(prop); 1188990b4856Slling } 1189990b4856Slling 1190990b4856Slling /* 1191990b4856Slling * Convert any properties to the internal DSL value types. 1192990b4856Slling */ 1193990b4856Slling *svalp = NULL; 1194990b4856Slling *ivalp = 0; 1195990b4856Slling 1196990b4856Slling switch (proptype) { 1197990b4856Slling case PROP_TYPE_STRING: 1198990b4856Slling if (datatype != DATA_TYPE_STRING) { 1199990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1200990b4856Slling "'%s' must be a string"), nvpair_name(elem)); 1201990b4856Slling goto error; 1202990b4856Slling } 1203990b4856Slling (void) nvpair_value_string(elem, svalp); 1204990b4856Slling if (strlen(*svalp) >= ZFS_MAXPROPLEN) { 1205990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1206990b4856Slling "'%s' is too long"), nvpair_name(elem)); 1207990b4856Slling goto error; 1208990b4856Slling } 1209990b4856Slling break; 1210990b4856Slling 1211990b4856Slling case PROP_TYPE_NUMBER: 1212990b4856Slling if (datatype == DATA_TYPE_STRING) { 1213990b4856Slling (void) nvpair_value_string(elem, &value); 1214990b4856Slling if (strcmp(value, "none") == 0) { 1215990b4856Slling isnone = B_TRUE; 1216990b4856Slling } else if (zfs_nicestrtonum(hdl, value, ivalp) 1217990b4856Slling != 0) { 1218990b4856Slling goto error; 1219990b4856Slling } 1220990b4856Slling } else if (datatype == DATA_TYPE_UINT64) { 1221990b4856Slling (void) nvpair_value_uint64(elem, ivalp); 1222990b4856Slling } else { 1223990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1224990b4856Slling "'%s' must be a number"), nvpair_name(elem)); 1225990b4856Slling goto error; 1226990b4856Slling } 1227990b4856Slling 1228990b4856Slling /* 1229990b4856Slling * Quota special: force 'none' and don't allow 0. 1230990b4856Slling */ 1231a9799022Sck if ((type & ZFS_TYPE_DATASET) && *ivalp == 0 && !isnone && 1232a9799022Sck (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_REFQUOTA)) { 1233990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1234a9799022Sck "use 'none' to disable quota/refquota")); 1235990b4856Slling goto error; 1236990b4856Slling } 1237a2afb611SJerry Jelinek 1238a2afb611SJerry Jelinek /* 1239a2afb611SJerry Jelinek * Special handling for "*_limit=none". In this case it's not 1240a2afb611SJerry Jelinek * 0 but UINT64_MAX. 1241a2afb611SJerry Jelinek */ 1242a2afb611SJerry Jelinek if ((type & ZFS_TYPE_DATASET) && isnone && 1243a2afb611SJerry Jelinek (prop == ZFS_PROP_FILESYSTEM_LIMIT || 1244a2afb611SJerry Jelinek prop == ZFS_PROP_SNAPSHOT_LIMIT)) { 1245a2afb611SJerry Jelinek *ivalp = UINT64_MAX; 1246a2afb611SJerry Jelinek } 1247990b4856Slling break; 1248990b4856Slling 1249990b4856Slling case PROP_TYPE_INDEX: 1250a9799022Sck if (datatype != DATA_TYPE_STRING) { 1251990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1252990b4856Slling "'%s' must be a string"), nvpair_name(elem)); 1253990b4856Slling goto error; 1254990b4856Slling } 1255990b4856Slling 1256a9799022Sck (void) nvpair_value_string(elem, &value); 1257a9799022Sck 1258990b4856Slling if (zprop_string_to_index(prop, value, ivalp, type) != 0) { 1259990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1260990b4856Slling "'%s' must be one of '%s'"), propname, 1261990b4856Slling zprop_values(prop, type)); 1262990b4856Slling goto error; 1263990b4856Slling } 1264990b4856Slling break; 1265990b4856Slling 1266990b4856Slling default: 1267990b4856Slling abort(); 1268990b4856Slling } 1269990b4856Slling 1270990b4856Slling /* 1271990b4856Slling * Add the result to our return set of properties. 1272990b4856Slling */ 1273990b4856Slling if (*svalp != NULL) { 1274990b4856Slling if (nvlist_add_string(ret, propname, *svalp) != 0) { 1275990b4856Slling (void) no_memory(hdl); 1276990b4856Slling return (-1); 1277990b4856Slling } 1278990b4856Slling } else { 1279990b4856Slling if (nvlist_add_uint64(ret, propname, *ivalp) != 0) { 1280990b4856Slling (void) no_memory(hdl); 1281990b4856Slling return (-1); 1282990b4856Slling } 1283990b4856Slling } 1284990b4856Slling 1285990b4856Slling return (0); 1286990b4856Slling error: 1287990b4856Slling (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1288990b4856Slling return (-1); 1289990b4856Slling } 1290990b4856Slling 129174e7dc98SMatthew Ahrens static int 129274e7dc98SMatthew Ahrens addlist(libzfs_handle_t *hdl, char *propname, zprop_list_t **listp, 129374e7dc98SMatthew Ahrens zfs_type_t type) 129474e7dc98SMatthew Ahrens { 129574e7dc98SMatthew Ahrens int prop; 129674e7dc98SMatthew Ahrens zprop_list_t *entry; 129774e7dc98SMatthew Ahrens 129874e7dc98SMatthew Ahrens prop = zprop_name_to_prop(propname, type); 129974e7dc98SMatthew Ahrens 130074e7dc98SMatthew Ahrens if (prop != ZPROP_INVAL && !zprop_valid_for_type(prop, type)) 130174e7dc98SMatthew Ahrens prop = ZPROP_INVAL; 130274e7dc98SMatthew Ahrens 130374e7dc98SMatthew Ahrens /* 130474e7dc98SMatthew Ahrens * When no property table entry can be found, return failure if 130574e7dc98SMatthew Ahrens * this is a pool property or if this isn't a user-defined 130674e7dc98SMatthew Ahrens * dataset property, 130774e7dc98SMatthew Ahrens */ 1308ad135b5dSChristopher Siden if (prop == ZPROP_INVAL && ((type == ZFS_TYPE_POOL && 1309ad135b5dSChristopher Siden !zpool_prop_feature(propname) && 1310ad135b5dSChristopher Siden !zpool_prop_unsupported(propname)) || 1311ad135b5dSChristopher Siden (type == ZFS_TYPE_DATASET && !zfs_prop_user(propname) && 1312ad135b5dSChristopher Siden !zfs_prop_userquota(propname) && !zfs_prop_written(propname)))) { 131374e7dc98SMatthew Ahrens zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 131474e7dc98SMatthew Ahrens "invalid property '%s'"), propname); 131574e7dc98SMatthew Ahrens return (zfs_error(hdl, EZFS_BADPROP, 131674e7dc98SMatthew Ahrens dgettext(TEXT_DOMAIN, "bad property list"))); 131774e7dc98SMatthew Ahrens } 131874e7dc98SMatthew Ahrens 131974e7dc98SMatthew Ahrens if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL) 132074e7dc98SMatthew Ahrens return (-1); 132174e7dc98SMatthew Ahrens 132274e7dc98SMatthew Ahrens entry->pl_prop = prop; 132374e7dc98SMatthew Ahrens if (prop == ZPROP_INVAL) { 1324ad135b5dSChristopher Siden if ((entry->pl_user_prop = zfs_strdup(hdl, propname)) == 1325ad135b5dSChristopher Siden NULL) { 132674e7dc98SMatthew Ahrens free(entry); 132774e7dc98SMatthew Ahrens return (-1); 132874e7dc98SMatthew Ahrens } 132974e7dc98SMatthew Ahrens entry->pl_width = strlen(propname); 133074e7dc98SMatthew Ahrens } else { 133174e7dc98SMatthew Ahrens entry->pl_width = zprop_width(prop, &entry->pl_fixed, 133274e7dc98SMatthew Ahrens type); 133374e7dc98SMatthew Ahrens } 133474e7dc98SMatthew Ahrens 133574e7dc98SMatthew Ahrens *listp = entry; 133674e7dc98SMatthew Ahrens 133774e7dc98SMatthew Ahrens return (0); 133874e7dc98SMatthew Ahrens } 133974e7dc98SMatthew Ahrens 1340990b4856Slling /* 1341990b4856Slling * Given a comma-separated list of properties, construct a property list 1342990b4856Slling * containing both user-defined and native properties. This function will 1343990b4856Slling * return a NULL list if 'all' is specified, which can later be expanded 1344990b4856Slling * by zprop_expand_list(). 1345990b4856Slling */ 1346990b4856Slling int 1347990b4856Slling zprop_get_list(libzfs_handle_t *hdl, char *props, zprop_list_t **listp, 1348990b4856Slling zfs_type_t type) 1349990b4856Slling { 1350990b4856Slling *listp = NULL; 1351990b4856Slling 1352990b4856Slling /* 1353990b4856Slling * If 'all' is specified, return a NULL list. 1354990b4856Slling */ 1355990b4856Slling if (strcmp(props, "all") == 0) 1356990b4856Slling return (0); 1357990b4856Slling 1358990b4856Slling /* 1359990b4856Slling * If no props were specified, return an error. 1360990b4856Slling */ 1361990b4856Slling if (props[0] == '\0') { 1362990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1363990b4856Slling "no properties specified")); 1364990b4856Slling return (zfs_error(hdl, EZFS_BADPROP, dgettext(TEXT_DOMAIN, 1365990b4856Slling "bad property list"))); 1366990b4856Slling } 1367990b4856Slling 1368990b4856Slling /* 1369990b4856Slling * It would be nice to use getsubopt() here, but the inclusion of column 1370990b4856Slling * aliases makes this more effort than it's worth. 1371990b4856Slling */ 137274e7dc98SMatthew Ahrens while (*props != '\0') { 137374e7dc98SMatthew Ahrens size_t len; 137474e7dc98SMatthew Ahrens char *p; 137574e7dc98SMatthew Ahrens char c; 137674e7dc98SMatthew Ahrens 137774e7dc98SMatthew Ahrens if ((p = strchr(props, ',')) == NULL) { 137874e7dc98SMatthew Ahrens len = strlen(props); 137974e7dc98SMatthew Ahrens p = props + len; 1380990b4856Slling } else { 138174e7dc98SMatthew Ahrens len = p - props; 1382990b4856Slling } 1383990b4856Slling 1384990b4856Slling /* 1385990b4856Slling * Check for empty options. 1386990b4856Slling */ 1387990b4856Slling if (len == 0) { 1388990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1389990b4856Slling "empty property name")); 1390990b4856Slling return (zfs_error(hdl, EZFS_BADPROP, 1391990b4856Slling dgettext(TEXT_DOMAIN, "bad property list"))); 1392990b4856Slling } 1393990b4856Slling 1394990b4856Slling /* 1395990b4856Slling * Check all regular property names. 1396990b4856Slling */ 139774e7dc98SMatthew Ahrens c = props[len]; 139874e7dc98SMatthew Ahrens props[len] = '\0'; 139974e7dc98SMatthew Ahrens 140074e7dc98SMatthew Ahrens if (strcmp(props, "space") == 0) { 140174e7dc98SMatthew Ahrens static char *spaceprops[] = { 140274e7dc98SMatthew Ahrens "name", "avail", "used", "usedbysnapshots", 140374e7dc98SMatthew Ahrens "usedbydataset", "usedbyrefreservation", 140474e7dc98SMatthew Ahrens "usedbychildren", NULL 140574e7dc98SMatthew Ahrens }; 140674e7dc98SMatthew Ahrens int i; 140774e7dc98SMatthew Ahrens 140874e7dc98SMatthew Ahrens for (i = 0; spaceprops[i]; i++) { 140974e7dc98SMatthew Ahrens if (addlist(hdl, spaceprops[i], listp, type)) 141074e7dc98SMatthew Ahrens return (-1); 141174e7dc98SMatthew Ahrens listp = &(*listp)->pl_next; 1412990b4856Slling } 1413990b4856Slling } else { 141474e7dc98SMatthew Ahrens if (addlist(hdl, props, listp, type)) 141574e7dc98SMatthew Ahrens return (-1); 141674e7dc98SMatthew Ahrens listp = &(*listp)->pl_next; 1417990b4856Slling } 1418990b4856Slling 141974e7dc98SMatthew Ahrens props = p; 1420990b4856Slling if (c == ',') 142174e7dc98SMatthew Ahrens props++; 1422990b4856Slling } 1423990b4856Slling 1424990b4856Slling return (0); 1425990b4856Slling } 1426990b4856Slling 1427990b4856Slling void 1428990b4856Slling zprop_free_list(zprop_list_t *pl) 1429990b4856Slling { 1430990b4856Slling zprop_list_t *next; 1431990b4856Slling 1432990b4856Slling while (pl != NULL) { 1433990b4856Slling next = pl->pl_next; 1434990b4856Slling free(pl->pl_user_prop); 1435990b4856Slling free(pl); 1436990b4856Slling pl = next; 1437990b4856Slling } 1438990b4856Slling } 1439990b4856Slling 1440990b4856Slling typedef struct expand_data { 1441990b4856Slling zprop_list_t **last; 1442990b4856Slling libzfs_handle_t *hdl; 1443990b4856Slling zfs_type_t type; 1444990b4856Slling } expand_data_t; 1445990b4856Slling 1446990b4856Slling int 1447990b4856Slling zprop_expand_list_cb(int prop, void *cb) 1448990b4856Slling { 1449990b4856Slling zprop_list_t *entry; 1450990b4856Slling expand_data_t *edp = cb; 1451990b4856Slling 1452990b4856Slling if ((entry = zfs_alloc(edp->hdl, sizeof (zprop_list_t))) == NULL) 1453990b4856Slling return (ZPROP_INVAL); 1454990b4856Slling 1455990b4856Slling entry->pl_prop = prop; 1456990b4856Slling entry->pl_width = zprop_width(prop, &entry->pl_fixed, edp->type); 1457990b4856Slling entry->pl_all = B_TRUE; 1458990b4856Slling 1459990b4856Slling *(edp->last) = entry; 1460990b4856Slling edp->last = &entry->pl_next; 1461990b4856Slling 1462990b4856Slling return (ZPROP_CONT); 1463990b4856Slling } 1464990b4856Slling 1465990b4856Slling int 1466990b4856Slling zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, zfs_type_t type) 1467990b4856Slling { 1468990b4856Slling zprop_list_t *entry; 1469990b4856Slling zprop_list_t **last; 1470990b4856Slling expand_data_t exp; 1471990b4856Slling 1472990b4856Slling if (*plp == NULL) { 1473990b4856Slling /* 1474990b4856Slling * If this is the very first time we've been called for an 'all' 1475990b4856Slling * specification, expand the list to include all native 1476990b4856Slling * properties. 1477990b4856Slling */ 1478990b4856Slling last = plp; 1479990b4856Slling 1480990b4856Slling exp.last = last; 1481990b4856Slling exp.hdl = hdl; 1482990b4856Slling exp.type = type; 1483990b4856Slling 1484990b4856Slling if (zprop_iter_common(zprop_expand_list_cb, &exp, B_FALSE, 1485990b4856Slling B_FALSE, type) == ZPROP_INVAL) 1486990b4856Slling return (-1); 1487990b4856Slling 1488990b4856Slling /* 1489990b4856Slling * Add 'name' to the beginning of the list, which is handled 1490990b4856Slling * specially. 1491990b4856Slling */ 1492990b4856Slling if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL) 1493990b4856Slling return (-1); 1494990b4856Slling 1495990b4856Slling entry->pl_prop = (type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : 1496990b4856Slling ZFS_PROP_NAME; 1497990b4856Slling entry->pl_width = zprop_width(entry->pl_prop, 1498990b4856Slling &entry->pl_fixed, type); 1499990b4856Slling entry->pl_all = B_TRUE; 1500990b4856Slling entry->pl_next = *plp; 1501990b4856Slling *plp = entry; 1502990b4856Slling } 1503990b4856Slling return (0); 1504990b4856Slling } 1505990b4856Slling 1506990b4856Slling int 1507990b4856Slling zprop_iter(zprop_func func, void *cb, boolean_t show_all, boolean_t ordered, 1508990b4856Slling zfs_type_t type) 1509990b4856Slling { 1510990b4856Slling return (zprop_iter_common(func, cb, show_all, ordered, type)); 1511ecd6cf80Smarks } 15122bcf0248SMax Grossman 15132bcf0248SMax Grossman /* 15142bcf0248SMax Grossman * zfs_get_hole_count retrieves the number of holes (blocks which are 15152bcf0248SMax Grossman * zero-filled) in the specified file using the _FIO_COUNT_FILLED ioctl. It 15162bcf0248SMax Grossman * also optionally fetches the block size when bs is non-NULL. With hole count 15172bcf0248SMax Grossman * and block size the full space consumed by the holes of a file can be 15182bcf0248SMax Grossman * calculated. 15192bcf0248SMax Grossman * 15202bcf0248SMax Grossman * On success, zero is returned, the count argument is set to the 15212bcf0248SMax Grossman * number of holes, and the bs argument is set to the block size (if it is 15222bcf0248SMax Grossman * not NULL). On error, a non-zero errno is returned and the values in count 15232bcf0248SMax Grossman * and bs are undefined. 15242bcf0248SMax Grossman */ 15252bcf0248SMax Grossman int 15269a686fbcSPaul Dagnelie zfs_get_hole_count(const char *path, uint64_t *count, uint64_t *bs) 15279a686fbcSPaul Dagnelie { 15282bcf0248SMax Grossman int fd, err; 15292bcf0248SMax Grossman struct stat64 ss; 15302bcf0248SMax Grossman uint64_t fill; 15312bcf0248SMax Grossman 15322bcf0248SMax Grossman fd = open(path, O_RDONLY | O_LARGEFILE); 15332bcf0248SMax Grossman if (fd == -1) 15342bcf0248SMax Grossman return (errno); 15352bcf0248SMax Grossman 15362bcf0248SMax Grossman if (ioctl(fd, _FIO_COUNT_FILLED, &fill) == -1) { 15372bcf0248SMax Grossman err = errno; 15382bcf0248SMax Grossman (void) close(fd); 15392bcf0248SMax Grossman return (err); 15402bcf0248SMax Grossman } 15412bcf0248SMax Grossman 15422bcf0248SMax Grossman if (fstat64(fd, &ss) == -1) { 15432bcf0248SMax Grossman err = errno; 15442bcf0248SMax Grossman (void) close(fd); 15452bcf0248SMax Grossman return (err); 15462bcf0248SMax Grossman } 15472bcf0248SMax Grossman 15482bcf0248SMax Grossman *count = (ss.st_size + ss.st_blksize - 1) / ss.st_blksize - fill; 15492bcf0248SMax Grossman VERIFY3S(*count, >=, 0); 15502bcf0248SMax Grossman if (bs != NULL) { 15512bcf0248SMax Grossman *bs = ss.st_blksize; 15522bcf0248SMax Grossman } 15532bcf0248SMax Grossman 15542bcf0248SMax Grossman if (close(fd) == -1) { 15552bcf0248SMax Grossman return (errno); 15562bcf0248SMax Grossman } 15572bcf0248SMax Grossman return (0); 15582bcf0248SMax Grossman } 1559