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. 25*9a686fbcSPaul Dagnelie * Copyright (c) 2011, 2015 by Delphix. All rights reserved. 26fa9e4066Sahrens */ 27fa9e4066Sahrens 28fa9e4066Sahrens /* 29fa9e4066Sahrens * Internal utility routines for the ZFS library. 30fa9e4066Sahrens */ 31fa9e4066Sahrens 32fa9e4066Sahrens #include <errno.h> 33fa9e4066Sahrens #include <fcntl.h> 34fa9e4066Sahrens #include <libintl.h> 35fa9e4066Sahrens #include <stdarg.h> 36fa9e4066Sahrens #include <stdio.h> 37fa9e4066Sahrens #include <stdlib.h> 38fa9e4066Sahrens #include <strings.h> 39fa9e4066Sahrens #include <unistd.h> 40990b4856Slling #include <ctype.h> 41990b4856Slling #include <math.h> 422bcf0248SMax Grossman #include <sys/filio.h> 43fa9e4066Sahrens #include <sys/mnttab.h> 445aba80dbSck #include <sys/mntent.h> 455aba80dbSck #include <sys/types.h> 46fa9e4066Sahrens 47fa9e4066Sahrens #include <libzfs.h> 484445fffbSMatthew Ahrens #include <libzfs_core.h> 49fa9e4066Sahrens 50fa9e4066Sahrens #include "libzfs_impl.h" 5191ebeef5Sahrens #include "zfs_prop.h" 52ad135b5dSChristopher Siden #include "zfeature_common.h" 53fa9e4066Sahrens 5499653d4eSeschrock int 5599653d4eSeschrock libzfs_errno(libzfs_handle_t *hdl) 5699653d4eSeschrock { 5799653d4eSeschrock return (hdl->libzfs_error); 5899653d4eSeschrock } 59fa9e4066Sahrens 6099653d4eSeschrock const char * 6199653d4eSeschrock libzfs_error_action(libzfs_handle_t *hdl) 6299653d4eSeschrock { 6399653d4eSeschrock return (hdl->libzfs_action); 6499653d4eSeschrock } 65fa9e4066Sahrens 6699653d4eSeschrock const char * 6799653d4eSeschrock libzfs_error_description(libzfs_handle_t *hdl) 6899653d4eSeschrock { 6999653d4eSeschrock if (hdl->libzfs_desc[0] != '\0') 7099653d4eSeschrock return (hdl->libzfs_desc); 7199653d4eSeschrock 7299653d4eSeschrock switch (hdl->libzfs_error) { 7399653d4eSeschrock case EZFS_NOMEM: 7499653d4eSeschrock return (dgettext(TEXT_DOMAIN, "out of memory")); 7599653d4eSeschrock case EZFS_BADPROP: 7699653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid property value")); 7799653d4eSeschrock case EZFS_PROPREADONLY: 78f9af39baSGeorge Wilson return (dgettext(TEXT_DOMAIN, "read-only property")); 7999653d4eSeschrock case EZFS_PROPTYPE: 8099653d4eSeschrock return (dgettext(TEXT_DOMAIN, "property doesn't apply to " 8199653d4eSeschrock "datasets of this type")); 8299653d4eSeschrock case EZFS_PROPNONINHERIT: 8399653d4eSeschrock return (dgettext(TEXT_DOMAIN, "property cannot be inherited")); 8499653d4eSeschrock case EZFS_PROPSPACE: 8599653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid quota or reservation")); 8699653d4eSeschrock case EZFS_BADTYPE: 8799653d4eSeschrock return (dgettext(TEXT_DOMAIN, "operation not applicable to " 8899653d4eSeschrock "datasets of this type")); 8999653d4eSeschrock case EZFS_BUSY: 9099653d4eSeschrock return (dgettext(TEXT_DOMAIN, "pool or dataset is busy")); 9199653d4eSeschrock case EZFS_EXISTS: 9299653d4eSeschrock return (dgettext(TEXT_DOMAIN, "pool or dataset exists")); 9399653d4eSeschrock case EZFS_NOENT: 9499653d4eSeschrock return (dgettext(TEXT_DOMAIN, "no such pool or dataset")); 9599653d4eSeschrock case EZFS_BADSTREAM: 9699653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid backup stream")); 9799653d4eSeschrock case EZFS_DSREADONLY: 98f9af39baSGeorge Wilson return (dgettext(TEXT_DOMAIN, "dataset is read-only")); 9999653d4eSeschrock case EZFS_VOLTOOBIG: 10099653d4eSeschrock return (dgettext(TEXT_DOMAIN, "volume size exceeds limit for " 10199653d4eSeschrock "this system")); 10299653d4eSeschrock case EZFS_INVALIDNAME: 10399653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid name")); 10499653d4eSeschrock case EZFS_BADRESTORE: 10599653d4eSeschrock return (dgettext(TEXT_DOMAIN, "unable to restore to " 10699653d4eSeschrock "destination")); 10799653d4eSeschrock case EZFS_BADBACKUP: 10899653d4eSeschrock return (dgettext(TEXT_DOMAIN, "backup failed")); 10999653d4eSeschrock case EZFS_BADTARGET: 11099653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid target vdev")); 11199653d4eSeschrock case EZFS_NODEVICE: 11299653d4eSeschrock return (dgettext(TEXT_DOMAIN, "no such device in pool")); 11399653d4eSeschrock case EZFS_BADDEV: 11499653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid device")); 11599653d4eSeschrock case EZFS_NOREPLICAS: 11699653d4eSeschrock return (dgettext(TEXT_DOMAIN, "no valid replicas")); 11799653d4eSeschrock case EZFS_RESILVERING: 11899653d4eSeschrock return (dgettext(TEXT_DOMAIN, "currently resilvering")); 11999653d4eSeschrock case EZFS_BADVERSION: 120ad135b5dSChristopher Siden return (dgettext(TEXT_DOMAIN, "unsupported version or " 121ad135b5dSChristopher Siden "feature")); 12299653d4eSeschrock case EZFS_POOLUNAVAIL: 12399653d4eSeschrock return (dgettext(TEXT_DOMAIN, "pool is unavailable")); 12499653d4eSeschrock case EZFS_DEVOVERFLOW: 12599653d4eSeschrock return (dgettext(TEXT_DOMAIN, "too many devices in one vdev")); 12699653d4eSeschrock case EZFS_BADPATH: 12799653d4eSeschrock return (dgettext(TEXT_DOMAIN, "must be an absolute path")); 12899653d4eSeschrock case EZFS_CROSSTARGET: 12999653d4eSeschrock return (dgettext(TEXT_DOMAIN, "operation crosses datasets or " 13099653d4eSeschrock "pools")); 13199653d4eSeschrock case EZFS_ZONED: 13299653d4eSeschrock return (dgettext(TEXT_DOMAIN, "dataset in use by local zone")); 13399653d4eSeschrock case EZFS_MOUNTFAILED: 13499653d4eSeschrock return (dgettext(TEXT_DOMAIN, "mount failed")); 13599653d4eSeschrock case EZFS_UMOUNTFAILED: 13699653d4eSeschrock return (dgettext(TEXT_DOMAIN, "umount failed")); 137f3861e1aSahl case EZFS_UNSHARENFSFAILED: 13899653d4eSeschrock return (dgettext(TEXT_DOMAIN, "unshare(1M) failed")); 139f3861e1aSahl case EZFS_SHARENFSFAILED: 14099653d4eSeschrock return (dgettext(TEXT_DOMAIN, "share(1M) failed")); 141da6c28aaSamw case EZFS_UNSHARESMBFAILED: 142da6c28aaSamw return (dgettext(TEXT_DOMAIN, "smb remove share failed")); 143da6c28aaSamw case EZFS_SHARESMBFAILED: 144da6c28aaSamw return (dgettext(TEXT_DOMAIN, "smb add share failed")); 14599653d4eSeschrock case EZFS_PERM: 14699653d4eSeschrock return (dgettext(TEXT_DOMAIN, "permission denied")); 14799653d4eSeschrock case EZFS_NOSPC: 14899653d4eSeschrock return (dgettext(TEXT_DOMAIN, "out of space")); 1496e27f868SSam Falkner case EZFS_FAULT: 1506e27f868SSam Falkner return (dgettext(TEXT_DOMAIN, "bad address")); 15199653d4eSeschrock case EZFS_IO: 15299653d4eSeschrock return (dgettext(TEXT_DOMAIN, "I/O error")); 15399653d4eSeschrock case EZFS_INTR: 15499653d4eSeschrock return (dgettext(TEXT_DOMAIN, "signal received")); 15599653d4eSeschrock case EZFS_ISSPARE: 15699653d4eSeschrock return (dgettext(TEXT_DOMAIN, "device is reserved as a hot " 15799653d4eSeschrock "spare")); 15899653d4eSeschrock case EZFS_INVALCONFIG: 15999653d4eSeschrock return (dgettext(TEXT_DOMAIN, "invalid vdev configuration")); 1603bb79becSeschrock case EZFS_RECURSIVE: 1613bb79becSeschrock return (dgettext(TEXT_DOMAIN, "recursive dataset dependency")); 16206eeb2adSek case EZFS_NOHISTORY: 16306eeb2adSek return (dgettext(TEXT_DOMAIN, "no history available")); 164b1b8ab34Slling case EZFS_POOLPROPS: 165b1b8ab34Slling return (dgettext(TEXT_DOMAIN, "failed to retrieve " 166b1b8ab34Slling "pool properties")); 167b1b8ab34Slling case EZFS_POOL_NOTSUP: 168b1b8ab34Slling return (dgettext(TEXT_DOMAIN, "operation not supported " 169b1b8ab34Slling "on this type of pool")); 170b1b8ab34Slling case EZFS_POOL_INVALARG: 171b1b8ab34Slling return (dgettext(TEXT_DOMAIN, "invalid argument for " 172b1b8ab34Slling "this pool operation")); 173b7661cccSmmusante case EZFS_NAMETOOLONG: 174b7661cccSmmusante return (dgettext(TEXT_DOMAIN, "dataset name is too long")); 1758488aeb5Staylor case EZFS_OPENFAILED: 1768488aeb5Staylor return (dgettext(TEXT_DOMAIN, "open failed")); 1778488aeb5Staylor case EZFS_NOCAP: 1788488aeb5Staylor return (dgettext(TEXT_DOMAIN, 1798488aeb5Staylor "disk capacity information could not be retrieved")); 1808488aeb5Staylor case EZFS_LABELFAILED: 1818488aeb5Staylor return (dgettext(TEXT_DOMAIN, "write of label failed")); 182ecd6cf80Smarks case EZFS_BADWHO: 183ecd6cf80Smarks return (dgettext(TEXT_DOMAIN, "invalid user/group")); 184ecd6cf80Smarks case EZFS_BADPERM: 185ecd6cf80Smarks return (dgettext(TEXT_DOMAIN, "invalid permission")); 186ecd6cf80Smarks case EZFS_BADPERMSET: 187ecd6cf80Smarks return (dgettext(TEXT_DOMAIN, "invalid permission set name")); 188ecd6cf80Smarks case EZFS_NODELEGATION: 189ecd6cf80Smarks return (dgettext(TEXT_DOMAIN, "delegated administration is " 190ecd6cf80Smarks "disabled on pool")); 1912f8aaab3Seschrock case EZFS_BADCACHE: 1922f8aaab3Seschrock return (dgettext(TEXT_DOMAIN, "invalid or missing cache file")); 193fa94a07fSbrendan case EZFS_ISL2CACHE: 194fa94a07fSbrendan return (dgettext(TEXT_DOMAIN, "device is in use as a cache")); 195e7cbe64fSgw case EZFS_VDEVNOTSUP: 196e7cbe64fSgw return (dgettext(TEXT_DOMAIN, "vdev specification is not " 197e7cbe64fSgw "supported")); 19815e6edf1Sgw case EZFS_NOTSUP: 19915e6edf1Sgw return (dgettext(TEXT_DOMAIN, "operation not supported " 20015e6edf1Sgw "on this dataset")); 20189a89ebfSlling case EZFS_ACTIVE_SPARE: 20289a89ebfSlling return (dgettext(TEXT_DOMAIN, "pool has active shared spare " 20389a89ebfSlling "device")); 204e6ca193dSGeorge Wilson case EZFS_UNPLAYED_LOGS: 205e6ca193dSGeorge Wilson return (dgettext(TEXT_DOMAIN, "log device has unplayed intent " 206e6ca193dSGeorge Wilson "logs")); 207842727c2SChris Kirby case EZFS_REFTAG_RELE: 208842727c2SChris Kirby return (dgettext(TEXT_DOMAIN, "no such tag on this dataset")); 209842727c2SChris Kirby case EZFS_REFTAG_HOLD: 210842727c2SChris Kirby return (dgettext(TEXT_DOMAIN, "tag already exists on this " 211842727c2SChris Kirby "dataset")); 212ca45db41SChris Kirby case EZFS_TAGTOOLONG: 213ca45db41SChris Kirby return (dgettext(TEXT_DOMAIN, "tag too long")); 2149e69d7d0SLori Alt case EZFS_PIPEFAILED: 2159e69d7d0SLori Alt return (dgettext(TEXT_DOMAIN, "pipe create failed")); 2169e69d7d0SLori Alt case EZFS_THREADCREATEFAILED: 2179e69d7d0SLori Alt return (dgettext(TEXT_DOMAIN, "thread create failed")); 2181195e687SMark J Musante case EZFS_POSTSPLIT_ONLINE: 2191195e687SMark J Musante return (dgettext(TEXT_DOMAIN, "disk was split from this pool " 2201195e687SMark J Musante "into a new one")); 2213f9d6ad7SLin Ling case EZFS_SCRUBBING: 2223f9d6ad7SLin Ling return (dgettext(TEXT_DOMAIN, "currently scrubbing; " 2233f9d6ad7SLin Ling "use 'zpool scrub -s' to cancel current scrub")); 2243f9d6ad7SLin Ling case EZFS_NO_SCRUB: 2253f9d6ad7SLin Ling return (dgettext(TEXT_DOMAIN, "there is no active scrub")); 22699d5e173STim Haley case EZFS_DIFF: 22799d5e173STim Haley return (dgettext(TEXT_DOMAIN, "unable to generate diffs")); 22899d5e173STim Haley case EZFS_DIFFDATA: 22999d5e173STim Haley return (dgettext(TEXT_DOMAIN, "invalid diff data")); 230f9af39baSGeorge Wilson case EZFS_POOLREADONLY: 231f9af39baSGeorge Wilson return (dgettext(TEXT_DOMAIN, "pool is read-only")); 23299653d4eSeschrock case EZFS_UNKNOWN: 23399653d4eSeschrock return (dgettext(TEXT_DOMAIN, "unknown error")); 23499653d4eSeschrock default: 235c08432ebSeschrock assert(hdl->libzfs_error == 0); 236c08432ebSeschrock return (dgettext(TEXT_DOMAIN, "no error")); 23799653d4eSeschrock } 23899653d4eSeschrock } 23999653d4eSeschrock 24099653d4eSeschrock /*PRINTFLIKE2*/ 241fa9e4066Sahrens void 24299653d4eSeschrock zfs_error_aux(libzfs_handle_t *hdl, const char *fmt, ...) 243fa9e4066Sahrens { 244fa9e4066Sahrens va_list ap; 245fa9e4066Sahrens 246fa9e4066Sahrens va_start(ap, fmt); 247fa9e4066Sahrens 24899653d4eSeschrock (void) vsnprintf(hdl->libzfs_desc, sizeof (hdl->libzfs_desc), 24999653d4eSeschrock fmt, ap); 25099653d4eSeschrock hdl->libzfs_desc_active = 1; 25199653d4eSeschrock 25299653d4eSeschrock va_end(ap); 25399653d4eSeschrock } 25499653d4eSeschrock 25599653d4eSeschrock static void 25699653d4eSeschrock zfs_verror(libzfs_handle_t *hdl, int error, const char *fmt, va_list ap) 25799653d4eSeschrock { 25899653d4eSeschrock (void) vsnprintf(hdl->libzfs_action, sizeof (hdl->libzfs_action), 25999653d4eSeschrock fmt, ap); 26099653d4eSeschrock hdl->libzfs_error = error; 26199653d4eSeschrock 26299653d4eSeschrock if (hdl->libzfs_desc_active) 26399653d4eSeschrock hdl->libzfs_desc_active = 0; 26499653d4eSeschrock else 26599653d4eSeschrock hdl->libzfs_desc[0] = '\0'; 26699653d4eSeschrock 26799653d4eSeschrock if (hdl->libzfs_printerr) { 26899653d4eSeschrock if (error == EZFS_UNKNOWN) { 26999653d4eSeschrock (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "internal " 27099653d4eSeschrock "error: %s\n"), libzfs_error_description(hdl)); 27199653d4eSeschrock abort(); 27299653d4eSeschrock } 27399653d4eSeschrock 27499653d4eSeschrock (void) fprintf(stderr, "%s: %s\n", hdl->libzfs_action, 275b1b8ab34Slling libzfs_error_description(hdl)); 27699653d4eSeschrock if (error == EZFS_NOMEM) 27799653d4eSeschrock exit(1); 278fa9e4066Sahrens } 27999653d4eSeschrock } 28099653d4eSeschrock 281ece3d9b3Slling int 282ece3d9b3Slling zfs_error(libzfs_handle_t *hdl, int error, const char *msg) 283ece3d9b3Slling { 284ece3d9b3Slling return (zfs_error_fmt(hdl, error, "%s", msg)); 285ece3d9b3Slling } 286ece3d9b3Slling 28799653d4eSeschrock /*PRINTFLIKE3*/ 28899653d4eSeschrock int 289ece3d9b3Slling zfs_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...) 29099653d4eSeschrock { 29199653d4eSeschrock va_list ap; 29299653d4eSeschrock 29399653d4eSeschrock va_start(ap, fmt); 29499653d4eSeschrock 29599653d4eSeschrock zfs_verror(hdl, error, fmt, ap); 296fa9e4066Sahrens 297fa9e4066Sahrens va_end(ap); 29899653d4eSeschrock 29999653d4eSeschrock return (-1); 300fa9e4066Sahrens } 301fa9e4066Sahrens 30299653d4eSeschrock static int 30399653d4eSeschrock zfs_common_error(libzfs_handle_t *hdl, int error, const char *fmt, 30499653d4eSeschrock va_list ap) 30599653d4eSeschrock { 30699653d4eSeschrock switch (error) { 30799653d4eSeschrock case EPERM: 30899653d4eSeschrock case EACCES: 30999653d4eSeschrock zfs_verror(hdl, EZFS_PERM, fmt, ap); 31099653d4eSeschrock return (-1); 31199653d4eSeschrock 312ecd6cf80Smarks case ECANCELED: 313ecd6cf80Smarks zfs_verror(hdl, EZFS_NODELEGATION, fmt, ap); 314ecd6cf80Smarks return (-1); 315ecd6cf80Smarks 31699653d4eSeschrock case EIO: 31799653d4eSeschrock zfs_verror(hdl, EZFS_IO, fmt, ap); 31899653d4eSeschrock return (-1); 31999653d4eSeschrock 3206e27f868SSam Falkner case EFAULT: 3216e27f868SSam Falkner zfs_verror(hdl, EZFS_FAULT, fmt, ap); 3226e27f868SSam Falkner return (-1); 3236e27f868SSam Falkner 32499653d4eSeschrock case EINTR: 32599653d4eSeschrock zfs_verror(hdl, EZFS_INTR, fmt, ap); 32699653d4eSeschrock return (-1); 32799653d4eSeschrock } 32899653d4eSeschrock 32999653d4eSeschrock return (0); 33099653d4eSeschrock } 33199653d4eSeschrock 332ece3d9b3Slling int 333ece3d9b3Slling zfs_standard_error(libzfs_handle_t *hdl, int error, const char *msg) 334ece3d9b3Slling { 335ece3d9b3Slling return (zfs_standard_error_fmt(hdl, error, "%s", msg)); 336ece3d9b3Slling } 337ece3d9b3Slling 33899653d4eSeschrock /*PRINTFLIKE3*/ 33999653d4eSeschrock int 340ece3d9b3Slling zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...) 341fa9e4066Sahrens { 342fa9e4066Sahrens va_list ap; 343fa9e4066Sahrens 344fa9e4066Sahrens va_start(ap, fmt); 345fa9e4066Sahrens 34699653d4eSeschrock if (zfs_common_error(hdl, error, fmt, ap) != 0) { 34799653d4eSeschrock va_end(ap); 34899653d4eSeschrock return (-1); 349fa9e4066Sahrens } 350fa9e4066Sahrens 35199653d4eSeschrock switch (error) { 35299653d4eSeschrock case ENXIO: 35397d9e3a6Sck case ENODEV: 35419b94df9SMatthew Ahrens case EPIPE: 35599653d4eSeschrock zfs_verror(hdl, EZFS_IO, fmt, ap); 35699653d4eSeschrock break; 35799653d4eSeschrock 35899653d4eSeschrock case ENOENT: 35999653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 36099653d4eSeschrock "dataset does not exist")); 36199653d4eSeschrock zfs_verror(hdl, EZFS_NOENT, fmt, ap); 36299653d4eSeschrock break; 36399653d4eSeschrock 36499653d4eSeschrock case ENOSPC: 36599653d4eSeschrock case EDQUOT: 36699653d4eSeschrock zfs_verror(hdl, EZFS_NOSPC, fmt, ap); 36799653d4eSeschrock return (-1); 36899653d4eSeschrock 36999653d4eSeschrock case EEXIST: 37099653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 37199653d4eSeschrock "dataset already exists")); 37299653d4eSeschrock zfs_verror(hdl, EZFS_EXISTS, fmt, ap); 37399653d4eSeschrock break; 37499653d4eSeschrock 37599653d4eSeschrock case EBUSY: 37699653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 37799653d4eSeschrock "dataset is busy")); 37899653d4eSeschrock zfs_verror(hdl, EZFS_BUSY, fmt, ap); 37999653d4eSeschrock break; 380ecd6cf80Smarks case EROFS: 381f9af39baSGeorge Wilson zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap); 382ecd6cf80Smarks break; 383b7661cccSmmusante case ENAMETOOLONG: 384b7661cccSmmusante zfs_verror(hdl, EZFS_NAMETOOLONG, fmt, ap); 385b7661cccSmmusante break; 38640ff3960Sck case ENOTSUP: 38740ff3960Sck zfs_verror(hdl, EZFS_BADVERSION, fmt, ap); 38840ff3960Sck break; 38954d692b7SGeorge Wilson case EAGAIN: 39054d692b7SGeorge Wilson zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 39154d692b7SGeorge Wilson "pool I/O is currently suspended")); 39254d692b7SGeorge Wilson zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap); 39354d692b7SGeorge Wilson break; 39499653d4eSeschrock default: 39592241e0bSTom Erickson zfs_error_aux(hdl, strerror(error)); 39699653d4eSeschrock zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap); 39799653d4eSeschrock break; 39899653d4eSeschrock } 39999653d4eSeschrock 40099653d4eSeschrock va_end(ap); 40199653d4eSeschrock return (-1); 402fa9e4066Sahrens } 403fa9e4066Sahrens 404ece3d9b3Slling int 405ece3d9b3Slling zpool_standard_error(libzfs_handle_t *hdl, int error, const char *msg) 406ece3d9b3Slling { 407ece3d9b3Slling return (zpool_standard_error_fmt(hdl, error, "%s", msg)); 408ece3d9b3Slling } 409ece3d9b3Slling 41099653d4eSeschrock /*PRINTFLIKE3*/ 41199653d4eSeschrock int 412ece3d9b3Slling zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...) 413fa9e4066Sahrens { 41499653d4eSeschrock va_list ap; 41599653d4eSeschrock 41699653d4eSeschrock va_start(ap, fmt); 41799653d4eSeschrock 41899653d4eSeschrock if (zfs_common_error(hdl, error, fmt, ap) != 0) { 41999653d4eSeschrock va_end(ap); 42099653d4eSeschrock return (-1); 42199653d4eSeschrock } 42299653d4eSeschrock 42399653d4eSeschrock switch (error) { 42499653d4eSeschrock case ENODEV: 42599653d4eSeschrock zfs_verror(hdl, EZFS_NODEVICE, fmt, ap); 42699653d4eSeschrock break; 42799653d4eSeschrock 42899653d4eSeschrock case ENOENT: 429b1b8ab34Slling zfs_error_aux(hdl, 430b1b8ab34Slling dgettext(TEXT_DOMAIN, "no such pool or dataset")); 43199653d4eSeschrock zfs_verror(hdl, EZFS_NOENT, fmt, ap); 43299653d4eSeschrock break; 43399653d4eSeschrock 43499653d4eSeschrock case EEXIST: 43599653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 43699653d4eSeschrock "pool already exists")); 43799653d4eSeschrock zfs_verror(hdl, EZFS_EXISTS, fmt, ap); 43899653d4eSeschrock break; 43999653d4eSeschrock 44099653d4eSeschrock case EBUSY: 44199653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool is busy")); 44243afaaa8SEric Schrock zfs_verror(hdl, EZFS_BUSY, fmt, ap); 44399653d4eSeschrock break; 44499653d4eSeschrock 44599653d4eSeschrock case ENXIO: 44699653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 44799653d4eSeschrock "one or more devices is currently unavailable")); 44899653d4eSeschrock zfs_verror(hdl, EZFS_BADDEV, fmt, ap); 44999653d4eSeschrock break; 45099653d4eSeschrock 45199653d4eSeschrock case ENAMETOOLONG: 45299653d4eSeschrock zfs_verror(hdl, EZFS_DEVOVERFLOW, fmt, ap); 45399653d4eSeschrock break; 45499653d4eSeschrock 455b1b8ab34Slling case ENOTSUP: 456b1b8ab34Slling zfs_verror(hdl, EZFS_POOL_NOTSUP, fmt, ap); 457b1b8ab34Slling break; 458b1b8ab34Slling 459b1b8ab34Slling case EINVAL: 460b1b8ab34Slling zfs_verror(hdl, EZFS_POOL_INVALARG, fmt, ap); 461b1b8ab34Slling break; 462b1b8ab34Slling 463ecd6cf80Smarks case ENOSPC: 464ecd6cf80Smarks case EDQUOT: 465ecd6cf80Smarks zfs_verror(hdl, EZFS_NOSPC, fmt, ap); 466ecd6cf80Smarks return (-1); 467f9af39baSGeorge Wilson 46854d692b7SGeorge Wilson case EAGAIN: 46954d692b7SGeorge Wilson zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 47054d692b7SGeorge Wilson "pool I/O is currently suspended")); 47154d692b7SGeorge Wilson zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap); 47254d692b7SGeorge Wilson break; 473ecd6cf80Smarks 474f9af39baSGeorge Wilson case EROFS: 475f9af39baSGeorge Wilson zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap); 476f9af39baSGeorge Wilson break; 477f9af39baSGeorge Wilson 47899653d4eSeschrock default: 47999653d4eSeschrock zfs_error_aux(hdl, strerror(error)); 48099653d4eSeschrock zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap); 48199653d4eSeschrock } 48299653d4eSeschrock 48399653d4eSeschrock va_end(ap); 48499653d4eSeschrock return (-1); 485fa9e4066Sahrens } 486fa9e4066Sahrens 487fa9e4066Sahrens /* 488fa9e4066Sahrens * Display an out of memory error message and abort the current program. 489fa9e4066Sahrens */ 49099653d4eSeschrock int 49199653d4eSeschrock no_memory(libzfs_handle_t *hdl) 492fa9e4066Sahrens { 49399653d4eSeschrock return (zfs_error(hdl, EZFS_NOMEM, "internal error")); 494fa9e4066Sahrens } 495fa9e4066Sahrens 496fa9e4066Sahrens /* 497fa9e4066Sahrens * A safe form of malloc() which will die if the allocation fails. 498fa9e4066Sahrens */ 499fa9e4066Sahrens void * 50099653d4eSeschrock zfs_alloc(libzfs_handle_t *hdl, size_t size) 501fa9e4066Sahrens { 502fa9e4066Sahrens void *data; 503fa9e4066Sahrens 504fa9e4066Sahrens if ((data = calloc(1, size)) == NULL) 50599653d4eSeschrock (void) no_memory(hdl); 506fa9e4066Sahrens 507fa9e4066Sahrens return (data); 508fa9e4066Sahrens } 509fa9e4066Sahrens 51099d5e173STim Haley /* 51199d5e173STim Haley * A safe form of asprintf() which will die if the allocation fails. 51299d5e173STim Haley */ 51399d5e173STim Haley /*PRINTFLIKE2*/ 51499d5e173STim Haley char * 51599d5e173STim Haley zfs_asprintf(libzfs_handle_t *hdl, const char *fmt, ...) 51699d5e173STim Haley { 51799d5e173STim Haley va_list ap; 51899d5e173STim Haley char *ret; 51999d5e173STim Haley int err; 52099d5e173STim Haley 52199d5e173STim Haley va_start(ap, fmt); 52299d5e173STim Haley 52399d5e173STim Haley err = vasprintf(&ret, fmt, ap); 52499d5e173STim Haley 52599d5e173STim Haley va_end(ap); 52699d5e173STim Haley 52799d5e173STim Haley if (err < 0) 52899d5e173STim Haley (void) no_memory(hdl); 52999d5e173STim Haley 53099d5e173STim Haley return (ret); 53199d5e173STim Haley } 53299d5e173STim Haley 533e9dbad6fSeschrock /* 534e9dbad6fSeschrock * A safe form of realloc(), which also zeroes newly allocated space. 535e9dbad6fSeschrock */ 536e9dbad6fSeschrock void * 537e9dbad6fSeschrock zfs_realloc(libzfs_handle_t *hdl, void *ptr, size_t oldsize, size_t newsize) 538e9dbad6fSeschrock { 539e9dbad6fSeschrock void *ret; 540e9dbad6fSeschrock 541e9dbad6fSeschrock if ((ret = realloc(ptr, newsize)) == NULL) { 542e9dbad6fSeschrock (void) no_memory(hdl); 543e9dbad6fSeschrock return (NULL); 544e9dbad6fSeschrock } 545e9dbad6fSeschrock 546e9dbad6fSeschrock bzero((char *)ret + oldsize, (newsize - oldsize)); 547e9dbad6fSeschrock return (ret); 548e9dbad6fSeschrock } 549e9dbad6fSeschrock 550fa9e4066Sahrens /* 551fa9e4066Sahrens * A safe form of strdup() which will die if the allocation fails. 552fa9e4066Sahrens */ 553fa9e4066Sahrens char * 55499653d4eSeschrock zfs_strdup(libzfs_handle_t *hdl, const char *str) 555fa9e4066Sahrens { 556fa9e4066Sahrens char *ret; 557fa9e4066Sahrens 558fa9e4066Sahrens if ((ret = strdup(str)) == NULL) 55999653d4eSeschrock (void) no_memory(hdl); 560fa9e4066Sahrens 561fa9e4066Sahrens return (ret); 562fa9e4066Sahrens } 563fa9e4066Sahrens 564fa9e4066Sahrens /* 565fa9e4066Sahrens * Convert a number to an appropriately human-readable output. 566fa9e4066Sahrens */ 567fa9e4066Sahrens void 568fa9e4066Sahrens zfs_nicenum(uint64_t num, char *buf, size_t buflen) 569fa9e4066Sahrens { 570fa9e4066Sahrens uint64_t n = num; 571fa9e4066Sahrens int index = 0; 572fa9e4066Sahrens char u; 573fa9e4066Sahrens 574fa9e4066Sahrens while (n >= 1024) { 5755c709891Seschrock n /= 1024; 576fa9e4066Sahrens index++; 577fa9e4066Sahrens } 578fa9e4066Sahrens 579fa9e4066Sahrens u = " KMGTPE"[index]; 580fa9e4066Sahrens 5815c709891Seschrock if (index == 0) { 582fa9e4066Sahrens (void) snprintf(buf, buflen, "%llu", n); 5835c709891Seschrock } else if ((num & ((1ULL << 10 * index) - 1)) == 0) { 5845c709891Seschrock /* 5855c709891Seschrock * If this is an even multiple of the base, always display 5865c709891Seschrock * without any decimal precision. 5875c709891Seschrock */ 588fa9e4066Sahrens (void) snprintf(buf, buflen, "%llu%c", n, u); 5895c709891Seschrock } else { 5905c709891Seschrock /* 5915c709891Seschrock * We want to choose a precision that reflects the best choice 5925c709891Seschrock * for fitting in 5 characters. This can get rather tricky when 5935c709891Seschrock * we have numbers that are very close to an order of magnitude. 5945c709891Seschrock * For example, when displaying 10239 (which is really 9.999K), 5955c709891Seschrock * we want only a single place of precision for 10.0K. We could 5965c709891Seschrock * develop some complex heuristics for this, but it's much 5975c709891Seschrock * easier just to try each combination in turn. 5985c709891Seschrock */ 5995c709891Seschrock int i; 6005c709891Seschrock for (i = 2; i >= 0; i--) { 6013d7072f8Seschrock if (snprintf(buf, buflen, "%.*f%c", i, 6023d7072f8Seschrock (double)num / (1ULL << 10 * index), u) <= 5) 6035c709891Seschrock break; 6045c709891Seschrock } 6055c709891Seschrock } 606fa9e4066Sahrens } 60799653d4eSeschrock 60899653d4eSeschrock void 60999653d4eSeschrock libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr) 61099653d4eSeschrock { 61199653d4eSeschrock hdl->libzfs_printerr = printerr; 61299653d4eSeschrock } 61399653d4eSeschrock 61499653d4eSeschrock libzfs_handle_t * 61599653d4eSeschrock libzfs_init(void) 61699653d4eSeschrock { 61799653d4eSeschrock libzfs_handle_t *hdl; 61899653d4eSeschrock 61999d5e173STim Haley if ((hdl = calloc(1, sizeof (libzfs_handle_t))) == NULL) { 62099653d4eSeschrock return (NULL); 62199653d4eSeschrock } 62299653d4eSeschrock 623c08432ebSeschrock if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) { 62499653d4eSeschrock free(hdl); 62599653d4eSeschrock return (NULL); 62699653d4eSeschrock } 62799653d4eSeschrock 628bde3d612SSimon Klinkert if ((hdl->libzfs_mnttab = fopen(MNTTAB, "rF")) == NULL) { 62999653d4eSeschrock (void) close(hdl->libzfs_fd); 63099653d4eSeschrock free(hdl); 63199653d4eSeschrock return (NULL); 63299653d4eSeschrock } 63399653d4eSeschrock 634bde3d612SSimon Klinkert hdl->libzfs_sharetab = fopen("/etc/dfs/sharetab", "rF"); 63599653d4eSeschrock 6364445fffbSMatthew Ahrens if (libzfs_core_init() != 0) { 6374445fffbSMatthew Ahrens (void) close(hdl->libzfs_fd); 6384445fffbSMatthew Ahrens (void) fclose(hdl->libzfs_mnttab); 6394445fffbSMatthew Ahrens (void) fclose(hdl->libzfs_sharetab); 6404445fffbSMatthew Ahrens free(hdl); 6414445fffbSMatthew Ahrens return (NULL); 6424445fffbSMatthew Ahrens } 6434445fffbSMatthew Ahrens 64491ebeef5Sahrens zfs_prop_init(); 645990b4856Slling zpool_prop_init(); 646ad135b5dSChristopher Siden zpool_feature_init(); 647b2634b9cSEric Taylor libzfs_mnttab_init(hdl); 64891ebeef5Sahrens 64999653d4eSeschrock return (hdl); 65099653d4eSeschrock } 65199653d4eSeschrock 65299653d4eSeschrock void 65399653d4eSeschrock libzfs_fini(libzfs_handle_t *hdl) 65499653d4eSeschrock { 65599653d4eSeschrock (void) close(hdl->libzfs_fd); 65699653d4eSeschrock if (hdl->libzfs_mnttab) 65799653d4eSeschrock (void) fclose(hdl->libzfs_mnttab); 65899653d4eSeschrock if (hdl->libzfs_sharetab) 65999653d4eSeschrock (void) fclose(hdl->libzfs_sharetab); 66067331909Sdougm zfs_uninit_libshare(hdl); 66129ab75c9Srm zpool_free_handles(hdl); 662069f55e2SEric Schrock libzfs_fru_clear(hdl, B_TRUE); 66399653d4eSeschrock namespace_clear(hdl); 664b2634b9cSEric Taylor libzfs_mnttab_fini(hdl); 6654445fffbSMatthew Ahrens libzfs_core_fini(); 66699653d4eSeschrock free(hdl); 66799653d4eSeschrock } 66899653d4eSeschrock 66999653d4eSeschrock libzfs_handle_t * 67099653d4eSeschrock zpool_get_handle(zpool_handle_t *zhp) 67199653d4eSeschrock { 67299653d4eSeschrock return (zhp->zpool_hdl); 67399653d4eSeschrock } 67499653d4eSeschrock 67599653d4eSeschrock libzfs_handle_t * 67699653d4eSeschrock zfs_get_handle(zfs_handle_t *zhp) 67799653d4eSeschrock { 67899653d4eSeschrock return (zhp->zfs_hdl); 67999653d4eSeschrock } 680e9dbad6fSeschrock 681d5b5bb25SRich Morris zpool_handle_t * 682d5b5bb25SRich Morris zfs_get_pool_handle(const zfs_handle_t *zhp) 683d5b5bb25SRich Morris { 684d5b5bb25SRich Morris return (zhp->zpool_hdl); 685d5b5bb25SRich Morris } 686d5b5bb25SRich Morris 6875aba80dbSck /* 6885aba80dbSck * Given a name, determine whether or not it's a valid path 6895aba80dbSck * (starts with '/' or "./"). If so, walk the mnttab trying 6905aba80dbSck * to match the device number. If not, treat the path as an 6915aba80dbSck * fs/vol/snap name. 6925aba80dbSck */ 6935aba80dbSck zfs_handle_t * 6945aba80dbSck zfs_path_to_zhandle(libzfs_handle_t *hdl, char *path, zfs_type_t argtype) 6955aba80dbSck { 6965aba80dbSck struct stat64 statbuf; 6975aba80dbSck struct extmnttab entry; 6985aba80dbSck int ret; 6995aba80dbSck 7005aba80dbSck if (path[0] != '/' && strncmp(path, "./", strlen("./")) != 0) { 7015aba80dbSck /* 7025aba80dbSck * It's not a valid path, assume it's a name of type 'argtype'. 7035aba80dbSck */ 7045aba80dbSck return (zfs_open(hdl, path, argtype)); 7055aba80dbSck } 7065aba80dbSck 7075aba80dbSck if (stat64(path, &statbuf) != 0) { 7085aba80dbSck (void) fprintf(stderr, "%s: %s\n", path, strerror(errno)); 7095aba80dbSck return (NULL); 7105aba80dbSck } 7115aba80dbSck 7125aba80dbSck rewind(hdl->libzfs_mnttab); 7135aba80dbSck while ((ret = getextmntent(hdl->libzfs_mnttab, &entry, 0)) == 0) { 7145aba80dbSck if (makedevice(entry.mnt_major, entry.mnt_minor) == 7155aba80dbSck statbuf.st_dev) { 7165aba80dbSck break; 7175aba80dbSck } 7185aba80dbSck } 7195aba80dbSck if (ret != 0) { 7205aba80dbSck return (NULL); 7215aba80dbSck } 7225aba80dbSck 7235aba80dbSck if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 7245aba80dbSck (void) fprintf(stderr, gettext("'%s': not a ZFS filesystem\n"), 7255aba80dbSck path); 7265aba80dbSck return (NULL); 7275aba80dbSck } 7285aba80dbSck 7295aba80dbSck return (zfs_open(hdl, entry.mnt_special, ZFS_TYPE_FILESYSTEM)); 7305aba80dbSck } 7315aba80dbSck 732e9dbad6fSeschrock /* 733e9dbad6fSeschrock * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from 734e9dbad6fSeschrock * an ioctl(). 735e9dbad6fSeschrock */ 736e9dbad6fSeschrock int 737e9dbad6fSeschrock zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len) 738e9dbad6fSeschrock { 739e9dbad6fSeschrock if (len == 0) 7404b964adaSGeorge Wilson len = 16 * 1024; 741e9dbad6fSeschrock zc->zc_nvlist_dst_size = len; 74230925561SChris Williamson zc->zc_nvlist_dst = 74330925561SChris Williamson (uint64_t)(uintptr_t)zfs_alloc(hdl, zc->zc_nvlist_dst_size); 74430925561SChris Williamson if (zc->zc_nvlist_dst == 0) 745e9dbad6fSeschrock return (-1); 746e9dbad6fSeschrock 747e9dbad6fSeschrock return (0); 748e9dbad6fSeschrock } 749e9dbad6fSeschrock 750e9dbad6fSeschrock /* 751e9dbad6fSeschrock * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will 752e9dbad6fSeschrock * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was 753e9dbad6fSeschrock * filled in by the kernel to indicate the actual required size. 754e9dbad6fSeschrock */ 755e9dbad6fSeschrock int 756e9dbad6fSeschrock zcmd_expand_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc) 757e9dbad6fSeschrock { 758e9dbad6fSeschrock free((void *)(uintptr_t)zc->zc_nvlist_dst); 75930925561SChris Williamson zc->zc_nvlist_dst = 76030925561SChris Williamson (uint64_t)(uintptr_t)zfs_alloc(hdl, zc->zc_nvlist_dst_size); 76130925561SChris Williamson if (zc->zc_nvlist_dst == 0) 762e9dbad6fSeschrock return (-1); 763e9dbad6fSeschrock 764e9dbad6fSeschrock return (0); 765e9dbad6fSeschrock } 766e9dbad6fSeschrock 767e9dbad6fSeschrock /* 768a2eea2e1Sahrens * Called to free the src and dst nvlists stored in the command structure. 769e9dbad6fSeschrock */ 770e9dbad6fSeschrock void 771e9dbad6fSeschrock zcmd_free_nvlists(zfs_cmd_t *zc) 772e9dbad6fSeschrock { 773990b4856Slling free((void *)(uintptr_t)zc->zc_nvlist_conf); 774e9dbad6fSeschrock free((void *)(uintptr_t)zc->zc_nvlist_src); 775e9dbad6fSeschrock free((void *)(uintptr_t)zc->zc_nvlist_dst); 77630925561SChris Williamson zc->zc_nvlist_conf = NULL; 77730925561SChris Williamson zc->zc_nvlist_src = NULL; 77830925561SChris Williamson zc->zc_nvlist_dst = NULL; 779e9dbad6fSeschrock } 780e9dbad6fSeschrock 781990b4856Slling static int 782990b4856Slling zcmd_write_nvlist_com(libzfs_handle_t *hdl, uint64_t *outnv, uint64_t *outlen, 783990b4856Slling nvlist_t *nvl) 784e9dbad6fSeschrock { 785e9dbad6fSeschrock char *packed; 786e9dbad6fSeschrock size_t len; 787e9dbad6fSeschrock 788e9dbad6fSeschrock verify(nvlist_size(nvl, &len, NV_ENCODE_NATIVE) == 0); 789e9dbad6fSeschrock 790e9dbad6fSeschrock if ((packed = zfs_alloc(hdl, len)) == NULL) 791e9dbad6fSeschrock return (-1); 792e9dbad6fSeschrock 793e9dbad6fSeschrock verify(nvlist_pack(nvl, &packed, &len, NV_ENCODE_NATIVE, 0) == 0); 794e9dbad6fSeschrock 795990b4856Slling *outnv = (uint64_t)(uintptr_t)packed; 796990b4856Slling *outlen = len; 797e9dbad6fSeschrock 798e9dbad6fSeschrock return (0); 799e9dbad6fSeschrock } 800e9dbad6fSeschrock 801990b4856Slling int 802990b4856Slling zcmd_write_conf_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl) 803990b4856Slling { 804990b4856Slling return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_conf, 805990b4856Slling &zc->zc_nvlist_conf_size, nvl)); 806990b4856Slling } 807990b4856Slling 808990b4856Slling int 809990b4856Slling zcmd_write_src_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl) 810990b4856Slling { 811990b4856Slling return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_src, 812990b4856Slling &zc->zc_nvlist_src_size, nvl)); 813990b4856Slling } 814990b4856Slling 815e9dbad6fSeschrock /* 816e9dbad6fSeschrock * Unpacks an nvlist from the ZFS ioctl command structure. 817e9dbad6fSeschrock */ 818e9dbad6fSeschrock int 819e9dbad6fSeschrock zcmd_read_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t **nvlp) 820e9dbad6fSeschrock { 821e9dbad6fSeschrock if (nvlist_unpack((void *)(uintptr_t)zc->zc_nvlist_dst, 822e9dbad6fSeschrock zc->zc_nvlist_dst_size, nvlp, 0) != 0) 823e9dbad6fSeschrock return (no_memory(hdl)); 824e9dbad6fSeschrock 825e9dbad6fSeschrock return (0); 826e9dbad6fSeschrock } 827b1b8ab34Slling 828990b4856Slling int 829990b4856Slling zfs_ioctl(libzfs_handle_t *hdl, int request, zfs_cmd_t *zc) 830990b4856Slling { 8314445fffbSMatthew Ahrens return (ioctl(hdl->libzfs_fd, request, zc)); 832990b4856Slling } 833990b4856Slling 834990b4856Slling /* 835990b4856Slling * ================================================================ 836990b4856Slling * API shared by zfs and zpool property management 837990b4856Slling * ================================================================ 838990b4856Slling */ 839990b4856Slling 840b1b8ab34Slling static void 841990b4856Slling zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type) 842b1b8ab34Slling { 843990b4856Slling zprop_list_t *pl = cbp->cb_proplist; 844b1b8ab34Slling int i; 845b1b8ab34Slling char *title; 846b1b8ab34Slling size_t len; 847b1b8ab34Slling 848b1b8ab34Slling cbp->cb_first = B_FALSE; 849b1b8ab34Slling if (cbp->cb_scripted) 850b1b8ab34Slling return; 851b1b8ab34Slling 852b1b8ab34Slling /* 853b1b8ab34Slling * Start with the length of the column headers. 854b1b8ab34Slling */ 855b1b8ab34Slling cbp->cb_colwidths[GET_COL_NAME] = strlen(dgettext(TEXT_DOMAIN, "NAME")); 856b1b8ab34Slling cbp->cb_colwidths[GET_COL_PROPERTY] = strlen(dgettext(TEXT_DOMAIN, 857b1b8ab34Slling "PROPERTY")); 858b1b8ab34Slling cbp->cb_colwidths[GET_COL_VALUE] = strlen(dgettext(TEXT_DOMAIN, 859b1b8ab34Slling "VALUE")); 86092241e0bSTom Erickson cbp->cb_colwidths[GET_COL_RECVD] = strlen(dgettext(TEXT_DOMAIN, 86192241e0bSTom Erickson "RECEIVED")); 862b1b8ab34Slling cbp->cb_colwidths[GET_COL_SOURCE] = strlen(dgettext(TEXT_DOMAIN, 863b1b8ab34Slling "SOURCE")); 864b1b8ab34Slling 865deb8317bSMark J Musante /* first property is always NAME */ 866deb8317bSMark J Musante assert(cbp->cb_proplist->pl_prop == 867deb8317bSMark J Musante ((type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : ZFS_PROP_NAME)); 868deb8317bSMark J Musante 869b1b8ab34Slling /* 870b1b8ab34Slling * Go through and calculate the widths for each column. For the 871b1b8ab34Slling * 'source' column, we kludge it up by taking the worst-case scenario of 872b1b8ab34Slling * inheriting from the longest name. This is acceptable because in the 873b1b8ab34Slling * majority of cases 'SOURCE' is the last column displayed, and we don't 874b1b8ab34Slling * use the width anyway. Note that the 'VALUE' column can be oversized, 87592241e0bSTom Erickson * if the name of the property is much longer than any values we find. 876b1b8ab34Slling */ 877b1b8ab34Slling for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) { 878b1b8ab34Slling /* 879b1b8ab34Slling * 'PROPERTY' column 880b1b8ab34Slling */ 881990b4856Slling if (pl->pl_prop != ZPROP_INVAL) { 882990b4856Slling const char *propname = (type == ZFS_TYPE_POOL) ? 883990b4856Slling zpool_prop_to_name(pl->pl_prop) : 884990b4856Slling zfs_prop_to_name(pl->pl_prop); 885990b4856Slling 886990b4856Slling len = strlen(propname); 887b1b8ab34Slling if (len > cbp->cb_colwidths[GET_COL_PROPERTY]) 888b1b8ab34Slling cbp->cb_colwidths[GET_COL_PROPERTY] = len; 889b1b8ab34Slling } else { 890b1b8ab34Slling len = strlen(pl->pl_user_prop); 891b1b8ab34Slling if (len > cbp->cb_colwidths[GET_COL_PROPERTY]) 892b1b8ab34Slling cbp->cb_colwidths[GET_COL_PROPERTY] = len; 893b1b8ab34Slling } 894b1b8ab34Slling 895b1b8ab34Slling /* 896deb8317bSMark J Musante * 'VALUE' column. The first property is always the 'name' 897deb8317bSMark J Musante * property that was tacked on either by /sbin/zfs's 898deb8317bSMark J Musante * zfs_do_get() or when calling zprop_expand_list(), so we 899deb8317bSMark J Musante * ignore its width. If the user specified the name property 900deb8317bSMark J Musante * to display, then it will be later in the list in any case. 901b1b8ab34Slling */ 902deb8317bSMark J Musante if (pl != cbp->cb_proplist && 903b1b8ab34Slling pl->pl_width > cbp->cb_colwidths[GET_COL_VALUE]) 904b1b8ab34Slling cbp->cb_colwidths[GET_COL_VALUE] = pl->pl_width; 905b1b8ab34Slling 90692241e0bSTom Erickson /* 'RECEIVED' column. */ 90792241e0bSTom Erickson if (pl != cbp->cb_proplist && 90892241e0bSTom Erickson pl->pl_recvd_width > cbp->cb_colwidths[GET_COL_RECVD]) 90992241e0bSTom Erickson cbp->cb_colwidths[GET_COL_RECVD] = pl->pl_recvd_width; 91092241e0bSTom Erickson 911b1b8ab34Slling /* 912b1b8ab34Slling * 'NAME' and 'SOURCE' columns 913b1b8ab34Slling */ 914990b4856Slling if (pl->pl_prop == (type == ZFS_TYPE_POOL ? ZPOOL_PROP_NAME : 915990b4856Slling ZFS_PROP_NAME) && 916b1b8ab34Slling pl->pl_width > cbp->cb_colwidths[GET_COL_NAME]) { 917b1b8ab34Slling cbp->cb_colwidths[GET_COL_NAME] = pl->pl_width; 918b1b8ab34Slling cbp->cb_colwidths[GET_COL_SOURCE] = pl->pl_width + 919b1b8ab34Slling strlen(dgettext(TEXT_DOMAIN, "inherited from")); 920b1b8ab34Slling } 921b1b8ab34Slling } 922b1b8ab34Slling 923b1b8ab34Slling /* 924b1b8ab34Slling * Now go through and print the headers. 925b1b8ab34Slling */ 92692241e0bSTom Erickson for (i = 0; i < ZFS_GET_NCOLS; i++) { 927b1b8ab34Slling switch (cbp->cb_columns[i]) { 928b1b8ab34Slling case GET_COL_NAME: 929b1b8ab34Slling title = dgettext(TEXT_DOMAIN, "NAME"); 930b1b8ab34Slling break; 931b1b8ab34Slling case GET_COL_PROPERTY: 932b1b8ab34Slling title = dgettext(TEXT_DOMAIN, "PROPERTY"); 933b1b8ab34Slling break; 934b1b8ab34Slling case GET_COL_VALUE: 935b1b8ab34Slling title = dgettext(TEXT_DOMAIN, "VALUE"); 936b1b8ab34Slling break; 93792241e0bSTom Erickson case GET_COL_RECVD: 93892241e0bSTom Erickson title = dgettext(TEXT_DOMAIN, "RECEIVED"); 93992241e0bSTom Erickson break; 940b1b8ab34Slling case GET_COL_SOURCE: 941b1b8ab34Slling title = dgettext(TEXT_DOMAIN, "SOURCE"); 942b1b8ab34Slling break; 943b1b8ab34Slling default: 944b1b8ab34Slling title = NULL; 945b1b8ab34Slling } 946b1b8ab34Slling 947b1b8ab34Slling if (title != NULL) { 94892241e0bSTom Erickson if (i == (ZFS_GET_NCOLS - 1) || 94992241e0bSTom Erickson cbp->cb_columns[i + 1] == GET_COL_NONE) 950b1b8ab34Slling (void) printf("%s", title); 951b1b8ab34Slling else 952b1b8ab34Slling (void) printf("%-*s ", 953b1b8ab34Slling cbp->cb_colwidths[cbp->cb_columns[i]], 954b1b8ab34Slling title); 955b1b8ab34Slling } 956b1b8ab34Slling } 957b1b8ab34Slling (void) printf("\n"); 958b1b8ab34Slling } 959b1b8ab34Slling 960b1b8ab34Slling /* 961b1b8ab34Slling * Display a single line of output, according to the settings in the callback 962b1b8ab34Slling * structure. 963b1b8ab34Slling */ 964b1b8ab34Slling void 965990b4856Slling zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp, 966990b4856Slling const char *propname, const char *value, zprop_source_t sourcetype, 96792241e0bSTom Erickson const char *source, const char *recvd_value) 968b1b8ab34Slling { 969b1b8ab34Slling int i; 970b1b8ab34Slling const char *str; 971b1b8ab34Slling char buf[128]; 972b1b8ab34Slling 973b1b8ab34Slling /* 974b1b8ab34Slling * Ignore those source types that the user has chosen to ignore. 975b1b8ab34Slling */ 976b1b8ab34Slling if ((sourcetype & cbp->cb_sources) == 0) 977b1b8ab34Slling return; 978b1b8ab34Slling 979b1b8ab34Slling if (cbp->cb_first) 980990b4856Slling zprop_print_headers(cbp, cbp->cb_type); 981b1b8ab34Slling 98292241e0bSTom Erickson for (i = 0; i < ZFS_GET_NCOLS; i++) { 983b1b8ab34Slling switch (cbp->cb_columns[i]) { 984b1b8ab34Slling case GET_COL_NAME: 985b1b8ab34Slling str = name; 986b1b8ab34Slling break; 987b1b8ab34Slling 988b1b8ab34Slling case GET_COL_PROPERTY: 989b1b8ab34Slling str = propname; 990b1b8ab34Slling break; 991b1b8ab34Slling 992b1b8ab34Slling case GET_COL_VALUE: 993b1b8ab34Slling str = value; 994b1b8ab34Slling break; 995b1b8ab34Slling 996b1b8ab34Slling case GET_COL_SOURCE: 997b1b8ab34Slling switch (sourcetype) { 998990b4856Slling case ZPROP_SRC_NONE: 999b1b8ab34Slling str = "-"; 1000b1b8ab34Slling break; 1001b1b8ab34Slling 1002990b4856Slling case ZPROP_SRC_DEFAULT: 1003b1b8ab34Slling str = "default"; 1004b1b8ab34Slling break; 1005b1b8ab34Slling 1006990b4856Slling case ZPROP_SRC_LOCAL: 1007b1b8ab34Slling str = "local"; 1008b1b8ab34Slling break; 1009b1b8ab34Slling 1010990b4856Slling case ZPROP_SRC_TEMPORARY: 1011b1b8ab34Slling str = "temporary"; 1012b1b8ab34Slling break; 1013b1b8ab34Slling 1014990b4856Slling case ZPROP_SRC_INHERITED: 1015b1b8ab34Slling (void) snprintf(buf, sizeof (buf), 1016b1b8ab34Slling "inherited from %s", source); 1017b1b8ab34Slling str = buf; 1018b1b8ab34Slling break; 101992241e0bSTom Erickson case ZPROP_SRC_RECEIVED: 102092241e0bSTom Erickson str = "received"; 102192241e0bSTom Erickson break; 1022b1b8ab34Slling } 1023b1b8ab34Slling break; 1024b1b8ab34Slling 102592241e0bSTom Erickson case GET_COL_RECVD: 102692241e0bSTom Erickson str = (recvd_value == NULL ? "-" : recvd_value); 102792241e0bSTom Erickson break; 102892241e0bSTom Erickson 1029b1b8ab34Slling default: 1030b1b8ab34Slling continue; 1031b1b8ab34Slling } 1032b1b8ab34Slling 103392241e0bSTom Erickson if (cbp->cb_columns[i + 1] == GET_COL_NONE) 1034b1b8ab34Slling (void) printf("%s", str); 1035b1b8ab34Slling else if (cbp->cb_scripted) 1036b1b8ab34Slling (void) printf("%s\t", str); 1037b1b8ab34Slling else 1038b1b8ab34Slling (void) printf("%-*s ", 1039b1b8ab34Slling cbp->cb_colwidths[cbp->cb_columns[i]], 1040b1b8ab34Slling str); 1041b1b8ab34Slling } 1042b1b8ab34Slling 1043b1b8ab34Slling (void) printf("\n"); 1044b1b8ab34Slling } 1045ecd6cf80Smarks 1046990b4856Slling /* 1047990b4856Slling * Given a numeric suffix, convert the value into a number of bits that the 1048990b4856Slling * resulting value must be shifted. 1049990b4856Slling */ 1050990b4856Slling static int 1051990b4856Slling str2shift(libzfs_handle_t *hdl, const char *buf) 1052990b4856Slling { 1053990b4856Slling const char *ends = "BKMGTPEZ"; 1054990b4856Slling int i; 1055990b4856Slling 1056990b4856Slling if (buf[0] == '\0') 1057990b4856Slling return (0); 1058990b4856Slling for (i = 0; i < strlen(ends); i++) { 1059990b4856Slling if (toupper(buf[0]) == ends[i]) 1060990b4856Slling break; 1061990b4856Slling } 1062990b4856Slling if (i == strlen(ends)) { 1063990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1064990b4856Slling "invalid numeric suffix '%s'"), buf); 1065990b4856Slling return (-1); 1066990b4856Slling } 1067990b4856Slling 1068990b4856Slling /* 1069990b4856Slling * We want to allow trailing 'b' characters for 'GB' or 'Mb'. But don't 1070990b4856Slling * allow 'BB' - that's just weird. 1071990b4856Slling */ 1072990b4856Slling if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0' && 1073990b4856Slling toupper(buf[0]) != 'B')) 1074990b4856Slling return (10*i); 1075990b4856Slling 1076990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1077990b4856Slling "invalid numeric suffix '%s'"), buf); 1078990b4856Slling return (-1); 1079990b4856Slling } 1080990b4856Slling 1081990b4856Slling /* 1082990b4856Slling * Convert a string of the form '100G' into a real number. Used when setting 1083990b4856Slling * properties or creating a volume. 'buf' is used to place an extended error 1084990b4856Slling * message for the caller to use. 1085990b4856Slling */ 1086ecd6cf80Smarks int 1087990b4856Slling zfs_nicestrtonum(libzfs_handle_t *hdl, const char *value, uint64_t *num) 1088ecd6cf80Smarks { 1089990b4856Slling char *end; 1090990b4856Slling int shift; 1091ecd6cf80Smarks 1092990b4856Slling *num = 0; 1093990b4856Slling 1094990b4856Slling /* Check to see if this looks like a number. */ 1095990b4856Slling if ((value[0] < '0' || value[0] > '9') && value[0] != '.') { 1096990b4856Slling if (hdl) 1097990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1098990b4856Slling "bad numeric value '%s'"), value); 1099990b4856Slling return (-1); 1100ecd6cf80Smarks } 1101ecd6cf80Smarks 1102069f55e2SEric Schrock /* Rely on strtoull() to process the numeric portion. */ 1103990b4856Slling errno = 0; 1104f67f35c3SEric Schrock *num = strtoull(value, &end, 10); 1105990b4856Slling 1106990b4856Slling /* 1107990b4856Slling * Check for ERANGE, which indicates that the value is too large to fit 1108990b4856Slling * in a 64-bit value. 1109990b4856Slling */ 1110990b4856Slling if (errno == ERANGE) { 1111990b4856Slling if (hdl) 1112990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1113990b4856Slling "numeric value is too large")); 1114990b4856Slling return (-1); 1115990b4856Slling } 1116990b4856Slling 1117990b4856Slling /* 1118990b4856Slling * If we have a decimal value, then do the computation with floating 1119990b4856Slling * point arithmetic. Otherwise, use standard arithmetic. 1120990b4856Slling */ 1121990b4856Slling if (*end == '.') { 1122990b4856Slling double fval = strtod(value, &end); 1123990b4856Slling 1124990b4856Slling if ((shift = str2shift(hdl, end)) == -1) 1125990b4856Slling return (-1); 1126990b4856Slling 1127990b4856Slling fval *= pow(2, shift); 1128990b4856Slling 1129990b4856Slling if (fval > UINT64_MAX) { 1130990b4856Slling if (hdl) 1131990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1132990b4856Slling "numeric value is too large")); 1133990b4856Slling return (-1); 1134990b4856Slling } 1135990b4856Slling 1136990b4856Slling *num = (uint64_t)fval; 1137990b4856Slling } else { 1138990b4856Slling if ((shift = str2shift(hdl, end)) == -1) 1139990b4856Slling return (-1); 1140990b4856Slling 1141990b4856Slling /* Check for overflow */ 1142990b4856Slling if (shift >= 64 || (*num << shift) >> shift != *num) { 1143990b4856Slling if (hdl) 1144990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1145990b4856Slling "numeric value is too large")); 1146990b4856Slling return (-1); 1147990b4856Slling } 1148990b4856Slling 1149990b4856Slling *num <<= shift; 1150990b4856Slling } 1151990b4856Slling 1152990b4856Slling return (0); 1153990b4856Slling } 1154990b4856Slling 1155990b4856Slling /* 1156990b4856Slling * Given a propname=value nvpair to set, parse any numeric properties 1157990b4856Slling * (index, boolean, etc) if they are specified as strings and add the 1158990b4856Slling * resulting nvpair to the returned nvlist. 1159990b4856Slling * 1160990b4856Slling * At the DSL layer, all properties are either 64-bit numbers or strings. 1161990b4856Slling * We want the user to be able to ignore this fact and specify properties 1162990b4856Slling * as native values (numbers, for example) or as strings (to simplify 1163990b4856Slling * command line utilities). This also handles converting index types 1164990b4856Slling * (compression, checksum, etc) from strings to their on-disk index. 1165990b4856Slling */ 1166990b4856Slling int 1167990b4856Slling zprop_parse_value(libzfs_handle_t *hdl, nvpair_t *elem, int prop, 1168990b4856Slling zfs_type_t type, nvlist_t *ret, char **svalp, uint64_t *ivalp, 1169990b4856Slling const char *errbuf) 1170990b4856Slling { 1171990b4856Slling data_type_t datatype = nvpair_type(elem); 1172990b4856Slling zprop_type_t proptype; 1173990b4856Slling const char *propname; 1174990b4856Slling char *value; 1175990b4856Slling boolean_t isnone = B_FALSE; 1176990b4856Slling 1177990b4856Slling if (type == ZFS_TYPE_POOL) { 1178990b4856Slling proptype = zpool_prop_get_type(prop); 1179990b4856Slling propname = zpool_prop_to_name(prop); 1180990b4856Slling } else { 1181990b4856Slling proptype = zfs_prop_get_type(prop); 1182990b4856Slling propname = zfs_prop_to_name(prop); 1183990b4856Slling } 1184990b4856Slling 1185990b4856Slling /* 1186990b4856Slling * Convert any properties to the internal DSL value types. 1187990b4856Slling */ 1188990b4856Slling *svalp = NULL; 1189990b4856Slling *ivalp = 0; 1190990b4856Slling 1191990b4856Slling switch (proptype) { 1192990b4856Slling case PROP_TYPE_STRING: 1193990b4856Slling if (datatype != DATA_TYPE_STRING) { 1194990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1195990b4856Slling "'%s' must be a string"), nvpair_name(elem)); 1196990b4856Slling goto error; 1197990b4856Slling } 1198990b4856Slling (void) nvpair_value_string(elem, svalp); 1199990b4856Slling if (strlen(*svalp) >= ZFS_MAXPROPLEN) { 1200990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1201990b4856Slling "'%s' is too long"), nvpair_name(elem)); 1202990b4856Slling goto error; 1203990b4856Slling } 1204990b4856Slling break; 1205990b4856Slling 1206990b4856Slling case PROP_TYPE_NUMBER: 1207990b4856Slling if (datatype == DATA_TYPE_STRING) { 1208990b4856Slling (void) nvpair_value_string(elem, &value); 1209990b4856Slling if (strcmp(value, "none") == 0) { 1210990b4856Slling isnone = B_TRUE; 1211990b4856Slling } else if (zfs_nicestrtonum(hdl, value, ivalp) 1212990b4856Slling != 0) { 1213990b4856Slling goto error; 1214990b4856Slling } 1215990b4856Slling } else if (datatype == DATA_TYPE_UINT64) { 1216990b4856Slling (void) nvpair_value_uint64(elem, ivalp); 1217990b4856Slling } else { 1218990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1219990b4856Slling "'%s' must be a number"), nvpair_name(elem)); 1220990b4856Slling goto error; 1221990b4856Slling } 1222990b4856Slling 1223990b4856Slling /* 1224990b4856Slling * Quota special: force 'none' and don't allow 0. 1225990b4856Slling */ 1226a9799022Sck if ((type & ZFS_TYPE_DATASET) && *ivalp == 0 && !isnone && 1227a9799022Sck (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_REFQUOTA)) { 1228990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1229a9799022Sck "use 'none' to disable quota/refquota")); 1230990b4856Slling goto error; 1231990b4856Slling } 1232a2afb611SJerry Jelinek 1233a2afb611SJerry Jelinek /* 1234a2afb611SJerry Jelinek * Special handling for "*_limit=none". In this case it's not 1235a2afb611SJerry Jelinek * 0 but UINT64_MAX. 1236a2afb611SJerry Jelinek */ 1237a2afb611SJerry Jelinek if ((type & ZFS_TYPE_DATASET) && isnone && 1238a2afb611SJerry Jelinek (prop == ZFS_PROP_FILESYSTEM_LIMIT || 1239a2afb611SJerry Jelinek prop == ZFS_PROP_SNAPSHOT_LIMIT)) { 1240a2afb611SJerry Jelinek *ivalp = UINT64_MAX; 1241a2afb611SJerry Jelinek } 1242990b4856Slling break; 1243990b4856Slling 1244990b4856Slling case PROP_TYPE_INDEX: 1245a9799022Sck if (datatype != DATA_TYPE_STRING) { 1246990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1247990b4856Slling "'%s' must be a string"), nvpair_name(elem)); 1248990b4856Slling goto error; 1249990b4856Slling } 1250990b4856Slling 1251a9799022Sck (void) nvpair_value_string(elem, &value); 1252a9799022Sck 1253990b4856Slling if (zprop_string_to_index(prop, value, ivalp, type) != 0) { 1254990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1255990b4856Slling "'%s' must be one of '%s'"), propname, 1256990b4856Slling zprop_values(prop, type)); 1257990b4856Slling goto error; 1258990b4856Slling } 1259990b4856Slling break; 1260990b4856Slling 1261990b4856Slling default: 1262990b4856Slling abort(); 1263990b4856Slling } 1264990b4856Slling 1265990b4856Slling /* 1266990b4856Slling * Add the result to our return set of properties. 1267990b4856Slling */ 1268990b4856Slling if (*svalp != NULL) { 1269990b4856Slling if (nvlist_add_string(ret, propname, *svalp) != 0) { 1270990b4856Slling (void) no_memory(hdl); 1271990b4856Slling return (-1); 1272990b4856Slling } 1273990b4856Slling } else { 1274990b4856Slling if (nvlist_add_uint64(ret, propname, *ivalp) != 0) { 1275990b4856Slling (void) no_memory(hdl); 1276990b4856Slling return (-1); 1277990b4856Slling } 1278990b4856Slling } 1279990b4856Slling 1280990b4856Slling return (0); 1281990b4856Slling error: 1282990b4856Slling (void) zfs_error(hdl, EZFS_BADPROP, errbuf); 1283990b4856Slling return (-1); 1284990b4856Slling } 1285990b4856Slling 128674e7dc98SMatthew Ahrens static int 128774e7dc98SMatthew Ahrens addlist(libzfs_handle_t *hdl, char *propname, zprop_list_t **listp, 128874e7dc98SMatthew Ahrens zfs_type_t type) 128974e7dc98SMatthew Ahrens { 129074e7dc98SMatthew Ahrens int prop; 129174e7dc98SMatthew Ahrens zprop_list_t *entry; 129274e7dc98SMatthew Ahrens 129374e7dc98SMatthew Ahrens prop = zprop_name_to_prop(propname, type); 129474e7dc98SMatthew Ahrens 129574e7dc98SMatthew Ahrens if (prop != ZPROP_INVAL && !zprop_valid_for_type(prop, type)) 129674e7dc98SMatthew Ahrens prop = ZPROP_INVAL; 129774e7dc98SMatthew Ahrens 129874e7dc98SMatthew Ahrens /* 129974e7dc98SMatthew Ahrens * When no property table entry can be found, return failure if 130074e7dc98SMatthew Ahrens * this is a pool property or if this isn't a user-defined 130174e7dc98SMatthew Ahrens * dataset property, 130274e7dc98SMatthew Ahrens */ 1303ad135b5dSChristopher Siden if (prop == ZPROP_INVAL && ((type == ZFS_TYPE_POOL && 1304ad135b5dSChristopher Siden !zpool_prop_feature(propname) && 1305ad135b5dSChristopher Siden !zpool_prop_unsupported(propname)) || 1306ad135b5dSChristopher Siden (type == ZFS_TYPE_DATASET && !zfs_prop_user(propname) && 1307ad135b5dSChristopher Siden !zfs_prop_userquota(propname) && !zfs_prop_written(propname)))) { 130874e7dc98SMatthew Ahrens zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 130974e7dc98SMatthew Ahrens "invalid property '%s'"), propname); 131074e7dc98SMatthew Ahrens return (zfs_error(hdl, EZFS_BADPROP, 131174e7dc98SMatthew Ahrens dgettext(TEXT_DOMAIN, "bad property list"))); 131274e7dc98SMatthew Ahrens } 131374e7dc98SMatthew Ahrens 131474e7dc98SMatthew Ahrens if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL) 131574e7dc98SMatthew Ahrens return (-1); 131674e7dc98SMatthew Ahrens 131774e7dc98SMatthew Ahrens entry->pl_prop = prop; 131874e7dc98SMatthew Ahrens if (prop == ZPROP_INVAL) { 1319ad135b5dSChristopher Siden if ((entry->pl_user_prop = zfs_strdup(hdl, propname)) == 1320ad135b5dSChristopher Siden NULL) { 132174e7dc98SMatthew Ahrens free(entry); 132274e7dc98SMatthew Ahrens return (-1); 132374e7dc98SMatthew Ahrens } 132474e7dc98SMatthew Ahrens entry->pl_width = strlen(propname); 132574e7dc98SMatthew Ahrens } else { 132674e7dc98SMatthew Ahrens entry->pl_width = zprop_width(prop, &entry->pl_fixed, 132774e7dc98SMatthew Ahrens type); 132874e7dc98SMatthew Ahrens } 132974e7dc98SMatthew Ahrens 133074e7dc98SMatthew Ahrens *listp = entry; 133174e7dc98SMatthew Ahrens 133274e7dc98SMatthew Ahrens return (0); 133374e7dc98SMatthew Ahrens } 133474e7dc98SMatthew Ahrens 1335990b4856Slling /* 1336990b4856Slling * Given a comma-separated list of properties, construct a property list 1337990b4856Slling * containing both user-defined and native properties. This function will 1338990b4856Slling * return a NULL list if 'all' is specified, which can later be expanded 1339990b4856Slling * by zprop_expand_list(). 1340990b4856Slling */ 1341990b4856Slling int 1342990b4856Slling zprop_get_list(libzfs_handle_t *hdl, char *props, zprop_list_t **listp, 1343990b4856Slling zfs_type_t type) 1344990b4856Slling { 1345990b4856Slling *listp = NULL; 1346990b4856Slling 1347990b4856Slling /* 1348990b4856Slling * If 'all' is specified, return a NULL list. 1349990b4856Slling */ 1350990b4856Slling if (strcmp(props, "all") == 0) 1351990b4856Slling return (0); 1352990b4856Slling 1353990b4856Slling /* 1354990b4856Slling * If no props were specified, return an error. 1355990b4856Slling */ 1356990b4856Slling if (props[0] == '\0') { 1357990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1358990b4856Slling "no properties specified")); 1359990b4856Slling return (zfs_error(hdl, EZFS_BADPROP, dgettext(TEXT_DOMAIN, 1360990b4856Slling "bad property list"))); 1361990b4856Slling } 1362990b4856Slling 1363990b4856Slling /* 1364990b4856Slling * It would be nice to use getsubopt() here, but the inclusion of column 1365990b4856Slling * aliases makes this more effort than it's worth. 1366990b4856Slling */ 136774e7dc98SMatthew Ahrens while (*props != '\0') { 136874e7dc98SMatthew Ahrens size_t len; 136974e7dc98SMatthew Ahrens char *p; 137074e7dc98SMatthew Ahrens char c; 137174e7dc98SMatthew Ahrens 137274e7dc98SMatthew Ahrens if ((p = strchr(props, ',')) == NULL) { 137374e7dc98SMatthew Ahrens len = strlen(props); 137474e7dc98SMatthew Ahrens p = props + len; 1375990b4856Slling } else { 137674e7dc98SMatthew Ahrens len = p - props; 1377990b4856Slling } 1378990b4856Slling 1379990b4856Slling /* 1380990b4856Slling * Check for empty options. 1381990b4856Slling */ 1382990b4856Slling if (len == 0) { 1383990b4856Slling zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1384990b4856Slling "empty property name")); 1385990b4856Slling return (zfs_error(hdl, EZFS_BADPROP, 1386990b4856Slling dgettext(TEXT_DOMAIN, "bad property list"))); 1387990b4856Slling } 1388990b4856Slling 1389990b4856Slling /* 1390990b4856Slling * Check all regular property names. 1391990b4856Slling */ 139274e7dc98SMatthew Ahrens c = props[len]; 139374e7dc98SMatthew Ahrens props[len] = '\0'; 139474e7dc98SMatthew Ahrens 139574e7dc98SMatthew Ahrens if (strcmp(props, "space") == 0) { 139674e7dc98SMatthew Ahrens static char *spaceprops[] = { 139774e7dc98SMatthew Ahrens "name", "avail", "used", "usedbysnapshots", 139874e7dc98SMatthew Ahrens "usedbydataset", "usedbyrefreservation", 139974e7dc98SMatthew Ahrens "usedbychildren", NULL 140074e7dc98SMatthew Ahrens }; 140174e7dc98SMatthew Ahrens int i; 140274e7dc98SMatthew Ahrens 140374e7dc98SMatthew Ahrens for (i = 0; spaceprops[i]; i++) { 140474e7dc98SMatthew Ahrens if (addlist(hdl, spaceprops[i], listp, type)) 140574e7dc98SMatthew Ahrens return (-1); 140674e7dc98SMatthew Ahrens listp = &(*listp)->pl_next; 1407990b4856Slling } 1408990b4856Slling } else { 140974e7dc98SMatthew Ahrens if (addlist(hdl, props, listp, type)) 141074e7dc98SMatthew Ahrens return (-1); 141174e7dc98SMatthew Ahrens listp = &(*listp)->pl_next; 1412990b4856Slling } 1413990b4856Slling 141474e7dc98SMatthew Ahrens props = p; 1415990b4856Slling if (c == ',') 141674e7dc98SMatthew Ahrens props++; 1417990b4856Slling } 1418990b4856Slling 1419990b4856Slling return (0); 1420990b4856Slling } 1421990b4856Slling 1422990b4856Slling void 1423990b4856Slling zprop_free_list(zprop_list_t *pl) 1424990b4856Slling { 1425990b4856Slling zprop_list_t *next; 1426990b4856Slling 1427990b4856Slling while (pl != NULL) { 1428990b4856Slling next = pl->pl_next; 1429990b4856Slling free(pl->pl_user_prop); 1430990b4856Slling free(pl); 1431990b4856Slling pl = next; 1432990b4856Slling } 1433990b4856Slling } 1434990b4856Slling 1435990b4856Slling typedef struct expand_data { 1436990b4856Slling zprop_list_t **last; 1437990b4856Slling libzfs_handle_t *hdl; 1438990b4856Slling zfs_type_t type; 1439990b4856Slling } expand_data_t; 1440990b4856Slling 1441990b4856Slling int 1442990b4856Slling zprop_expand_list_cb(int prop, void *cb) 1443990b4856Slling { 1444990b4856Slling zprop_list_t *entry; 1445990b4856Slling expand_data_t *edp = cb; 1446990b4856Slling 1447990b4856Slling if ((entry = zfs_alloc(edp->hdl, sizeof (zprop_list_t))) == NULL) 1448990b4856Slling return (ZPROP_INVAL); 1449990b4856Slling 1450990b4856Slling entry->pl_prop = prop; 1451990b4856Slling entry->pl_width = zprop_width(prop, &entry->pl_fixed, edp->type); 1452990b4856Slling entry->pl_all = B_TRUE; 1453990b4856Slling 1454990b4856Slling *(edp->last) = entry; 1455990b4856Slling edp->last = &entry->pl_next; 1456990b4856Slling 1457990b4856Slling return (ZPROP_CONT); 1458990b4856Slling } 1459990b4856Slling 1460990b4856Slling int 1461990b4856Slling zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, zfs_type_t type) 1462990b4856Slling { 1463990b4856Slling zprop_list_t *entry; 1464990b4856Slling zprop_list_t **last; 1465990b4856Slling expand_data_t exp; 1466990b4856Slling 1467990b4856Slling if (*plp == NULL) { 1468990b4856Slling /* 1469990b4856Slling * If this is the very first time we've been called for an 'all' 1470990b4856Slling * specification, expand the list to include all native 1471990b4856Slling * properties. 1472990b4856Slling */ 1473990b4856Slling last = plp; 1474990b4856Slling 1475990b4856Slling exp.last = last; 1476990b4856Slling exp.hdl = hdl; 1477990b4856Slling exp.type = type; 1478990b4856Slling 1479990b4856Slling if (zprop_iter_common(zprop_expand_list_cb, &exp, B_FALSE, 1480990b4856Slling B_FALSE, type) == ZPROP_INVAL) 1481990b4856Slling return (-1); 1482990b4856Slling 1483990b4856Slling /* 1484990b4856Slling * Add 'name' to the beginning of the list, which is handled 1485990b4856Slling * specially. 1486990b4856Slling */ 1487990b4856Slling if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL) 1488990b4856Slling return (-1); 1489990b4856Slling 1490990b4856Slling entry->pl_prop = (type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : 1491990b4856Slling ZFS_PROP_NAME; 1492990b4856Slling entry->pl_width = zprop_width(entry->pl_prop, 1493990b4856Slling &entry->pl_fixed, type); 1494990b4856Slling entry->pl_all = B_TRUE; 1495990b4856Slling entry->pl_next = *plp; 1496990b4856Slling *plp = entry; 1497990b4856Slling } 1498990b4856Slling return (0); 1499990b4856Slling } 1500990b4856Slling 1501990b4856Slling int 1502990b4856Slling zprop_iter(zprop_func func, void *cb, boolean_t show_all, boolean_t ordered, 1503990b4856Slling zfs_type_t type) 1504990b4856Slling { 1505990b4856Slling return (zprop_iter_common(func, cb, show_all, ordered, type)); 1506ecd6cf80Smarks } 15072bcf0248SMax Grossman 15082bcf0248SMax Grossman /* 15092bcf0248SMax Grossman * zfs_get_hole_count retrieves the number of holes (blocks which are 15102bcf0248SMax Grossman * zero-filled) in the specified file using the _FIO_COUNT_FILLED ioctl. It 15112bcf0248SMax Grossman * also optionally fetches the block size when bs is non-NULL. With hole count 15122bcf0248SMax Grossman * and block size the full space consumed by the holes of a file can be 15132bcf0248SMax Grossman * calculated. 15142bcf0248SMax Grossman * 15152bcf0248SMax Grossman * On success, zero is returned, the count argument is set to the 15162bcf0248SMax Grossman * number of holes, and the bs argument is set to the block size (if it is 15172bcf0248SMax Grossman * not NULL). On error, a non-zero errno is returned and the values in count 15182bcf0248SMax Grossman * and bs are undefined. 15192bcf0248SMax Grossman */ 15202bcf0248SMax Grossman int 1521*9a686fbcSPaul Dagnelie zfs_get_hole_count(const char *path, uint64_t *count, uint64_t *bs) 1522*9a686fbcSPaul Dagnelie { 15232bcf0248SMax Grossman int fd, err; 15242bcf0248SMax Grossman struct stat64 ss; 15252bcf0248SMax Grossman uint64_t fill; 15262bcf0248SMax Grossman 15272bcf0248SMax Grossman fd = open(path, O_RDONLY | O_LARGEFILE); 15282bcf0248SMax Grossman if (fd == -1) 15292bcf0248SMax Grossman return (errno); 15302bcf0248SMax Grossman 15312bcf0248SMax Grossman if (ioctl(fd, _FIO_COUNT_FILLED, &fill) == -1) { 15322bcf0248SMax Grossman err = errno; 15332bcf0248SMax Grossman (void) close(fd); 15342bcf0248SMax Grossman return (err); 15352bcf0248SMax Grossman } 15362bcf0248SMax Grossman 15372bcf0248SMax Grossman if (fstat64(fd, &ss) == -1) { 15382bcf0248SMax Grossman err = errno; 15392bcf0248SMax Grossman (void) close(fd); 15402bcf0248SMax Grossman return (err); 15412bcf0248SMax Grossman } 15422bcf0248SMax Grossman 15432bcf0248SMax Grossman *count = (ss.st_size + ss.st_blksize - 1) / ss.st_blksize - fill; 15442bcf0248SMax Grossman VERIFY3S(*count, >=, 0); 15452bcf0248SMax Grossman if (bs != NULL) { 15462bcf0248SMax Grossman *bs = ss.st_blksize; 15472bcf0248SMax Grossman } 15482bcf0248SMax Grossman 15492bcf0248SMax Grossman if (close(fd) == -1) { 15502bcf0248SMax Grossman return (errno); 15512bcf0248SMax Grossman } 15522bcf0248SMax Grossman return (0); 15532bcf0248SMax Grossman } 1554