diff options
Diffstat (limited to 'cddl/contrib/opensolaris/lib/libzfs/common/libzfs_util.c')
| -rw-r--r-- | cddl/contrib/opensolaris/lib/libzfs/common/libzfs_util.c | 1661 |
1 files changed, 0 insertions, 1661 deletions
diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_util.c b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_util.c deleted file mode 100644 index 4439bcbbee57f..0000000000000 --- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_util.c +++ /dev/null @@ -1,1661 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ - -/* - * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. - * Copyright 2019 Joyent, Inc. - * Copyright (c) 2011, 2018 by Delphix. All rights reserved. - * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com> - * Copyright (c) 2017 Datto Inc. - */ - -/* - * Internal utility routines for the ZFS library. - */ - -#include <sys/param.h> -#include <sys/linker.h> -#include <sys/module.h> -#include <sys/stat.h> - -#include <errno.h> -#include <fcntl.h> -#include <libintl.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <strings.h> -#include <unistd.h> -#include <ctype.h> -#include <math.h> -#include <sys/mnttab.h> -#include <sys/mntent.h> -#include <sys/types.h> -#include <libcmdutils.h> - -#include <libzfs.h> -#include <libzfs_core.h> - -#include "libzfs_impl.h" -#include "zfs_prop.h" -#include "zfs_comutil.h" -#include "zfeature_common.h" - - -int -libzfs_errno(libzfs_handle_t *hdl) -{ - return (hdl->libzfs_error); -} - -const char * -libzfs_error_action(libzfs_handle_t *hdl) -{ - return (hdl->libzfs_action); -} - -const char * -libzfs_error_description(libzfs_handle_t *hdl) -{ - if (hdl->libzfs_desc[0] != '\0') - return (hdl->libzfs_desc); - - switch (hdl->libzfs_error) { - case EZFS_NOMEM: - return (dgettext(TEXT_DOMAIN, "out of memory")); - case EZFS_BADPROP: - return (dgettext(TEXT_DOMAIN, "invalid property value")); - case EZFS_PROPREADONLY: - return (dgettext(TEXT_DOMAIN, "read-only property")); - case EZFS_PROPTYPE: - return (dgettext(TEXT_DOMAIN, "property doesn't apply to " - "datasets of this type")); - case EZFS_PROPNONINHERIT: - return (dgettext(TEXT_DOMAIN, "property cannot be inherited")); - case EZFS_PROPSPACE: - return (dgettext(TEXT_DOMAIN, "invalid quota or reservation")); - case EZFS_BADTYPE: - return (dgettext(TEXT_DOMAIN, "operation not applicable to " - "datasets of this type")); - case EZFS_BUSY: - return (dgettext(TEXT_DOMAIN, "pool or dataset is busy")); - case EZFS_EXISTS: - return (dgettext(TEXT_DOMAIN, "pool or dataset exists")); - case EZFS_NOENT: - return (dgettext(TEXT_DOMAIN, "no such pool or dataset")); - case EZFS_BADSTREAM: - return (dgettext(TEXT_DOMAIN, "invalid backup stream")); - case EZFS_DSREADONLY: - return (dgettext(TEXT_DOMAIN, "dataset is read-only")); - case EZFS_VOLTOOBIG: - return (dgettext(TEXT_DOMAIN, "volume size exceeds limit for " - "this system")); - case EZFS_INVALIDNAME: - return (dgettext(TEXT_DOMAIN, "invalid name")); - case EZFS_BADRESTORE: - return (dgettext(TEXT_DOMAIN, "unable to restore to " - "destination")); - case EZFS_BADBACKUP: - return (dgettext(TEXT_DOMAIN, "backup failed")); - case EZFS_BADTARGET: - return (dgettext(TEXT_DOMAIN, "invalid target vdev")); - case EZFS_NODEVICE: - return (dgettext(TEXT_DOMAIN, "no such device in pool")); - case EZFS_BADDEV: - return (dgettext(TEXT_DOMAIN, "invalid device")); - case EZFS_NOREPLICAS: - return (dgettext(TEXT_DOMAIN, "no valid replicas")); - case EZFS_RESILVERING: - return (dgettext(TEXT_DOMAIN, "currently resilvering")); - case EZFS_BADVERSION: - return (dgettext(TEXT_DOMAIN, "unsupported version or " - "feature")); - case EZFS_POOLUNAVAIL: - return (dgettext(TEXT_DOMAIN, "pool is unavailable")); - case EZFS_DEVOVERFLOW: - return (dgettext(TEXT_DOMAIN, "too many devices in one vdev")); - case EZFS_BADPATH: - return (dgettext(TEXT_DOMAIN, "must be an absolute path")); - case EZFS_CROSSTARGET: - return (dgettext(TEXT_DOMAIN, "operation crosses datasets or " - "pools")); - case EZFS_ZONED: - return (dgettext(TEXT_DOMAIN, "dataset in use by local zone")); - case EZFS_MOUNTFAILED: - return (dgettext(TEXT_DOMAIN, "mount failed")); - case EZFS_UMOUNTFAILED: - return (dgettext(TEXT_DOMAIN, "umount failed")); - case EZFS_UNSHARENFSFAILED: - return (dgettext(TEXT_DOMAIN, "unshare(1M) failed")); - case EZFS_SHARENFSFAILED: - return (dgettext(TEXT_DOMAIN, "share(1M) failed")); - case EZFS_UNSHARESMBFAILED: - return (dgettext(TEXT_DOMAIN, "smb remove share failed")); - case EZFS_SHARESMBFAILED: - return (dgettext(TEXT_DOMAIN, "smb add share failed")); - case EZFS_PERM: - return (dgettext(TEXT_DOMAIN, "permission denied")); - case EZFS_NOSPC: - return (dgettext(TEXT_DOMAIN, "out of space")); - case EZFS_FAULT: - return (dgettext(TEXT_DOMAIN, "bad address")); - case EZFS_IO: - return (dgettext(TEXT_DOMAIN, "I/O error")); - case EZFS_INTR: - return (dgettext(TEXT_DOMAIN, "signal received")); - case EZFS_ISSPARE: - return (dgettext(TEXT_DOMAIN, "device is reserved as a hot " - "spare")); - case EZFS_INVALCONFIG: - return (dgettext(TEXT_DOMAIN, "invalid vdev configuration")); - case EZFS_RECURSIVE: - return (dgettext(TEXT_DOMAIN, "recursive dataset dependency")); - case EZFS_NOHISTORY: - return (dgettext(TEXT_DOMAIN, "no history available")); - case EZFS_POOLPROPS: - return (dgettext(TEXT_DOMAIN, "failed to retrieve " - "pool properties")); - case EZFS_POOL_NOTSUP: - return (dgettext(TEXT_DOMAIN, "operation not supported " - "on this type of pool")); - case EZFS_POOL_INVALARG: - return (dgettext(TEXT_DOMAIN, "invalid argument for " - "this pool operation")); - case EZFS_NAMETOOLONG: - return (dgettext(TEXT_DOMAIN, "dataset name is too long")); - case EZFS_OPENFAILED: - return (dgettext(TEXT_DOMAIN, "open failed")); - case EZFS_NOCAP: - return (dgettext(TEXT_DOMAIN, - "disk capacity information could not be retrieved")); - case EZFS_LABELFAILED: - return (dgettext(TEXT_DOMAIN, "write of label failed")); - case EZFS_BADWHO: - return (dgettext(TEXT_DOMAIN, "invalid user/group")); - case EZFS_BADPERM: - return (dgettext(TEXT_DOMAIN, "invalid permission")); - case EZFS_BADPERMSET: - return (dgettext(TEXT_DOMAIN, "invalid permission set name")); - case EZFS_NODELEGATION: - return (dgettext(TEXT_DOMAIN, "delegated administration is " - "disabled on pool")); - case EZFS_BADCACHE: - return (dgettext(TEXT_DOMAIN, "invalid or missing cache file")); - case EZFS_ISL2CACHE: - return (dgettext(TEXT_DOMAIN, "device is in use as a cache")); - case EZFS_VDEVNOTSUP: - return (dgettext(TEXT_DOMAIN, "vdev specification is not " - "supported")); - case EZFS_NOTSUP: - return (dgettext(TEXT_DOMAIN, "operation not supported " - "on this dataset")); - case EZFS_IOC_NOTSUPPORTED: - return (dgettext(TEXT_DOMAIN, "operation not supported by " - "zfs kernel module")); - case EZFS_ACTIVE_SPARE: - return (dgettext(TEXT_DOMAIN, "pool has active shared spare " - "device")); - case EZFS_UNPLAYED_LOGS: - return (dgettext(TEXT_DOMAIN, "log device has unplayed intent " - "logs")); - case EZFS_REFTAG_RELE: - return (dgettext(TEXT_DOMAIN, "no such tag on this dataset")); - case EZFS_REFTAG_HOLD: - return (dgettext(TEXT_DOMAIN, "tag already exists on this " - "dataset")); - case EZFS_TAGTOOLONG: - return (dgettext(TEXT_DOMAIN, "tag too long")); - case EZFS_PIPEFAILED: - return (dgettext(TEXT_DOMAIN, "pipe create failed")); - case EZFS_THREADCREATEFAILED: - return (dgettext(TEXT_DOMAIN, "thread create failed")); - case EZFS_POSTSPLIT_ONLINE: - return (dgettext(TEXT_DOMAIN, "disk was split from this pool " - "into a new one")); - case EZFS_SCRUB_PAUSED: - return (dgettext(TEXT_DOMAIN, "scrub is paused; " - "use 'zpool scrub' to resume")); - case EZFS_SCRUBBING: - return (dgettext(TEXT_DOMAIN, "currently scrubbing; " - "use 'zpool scrub -s' to cancel current scrub")); - case EZFS_NO_SCRUB: - return (dgettext(TEXT_DOMAIN, "there is no active scrub")); - case EZFS_DIFF: - return (dgettext(TEXT_DOMAIN, "unable to generate diffs")); - case EZFS_DIFFDATA: - return (dgettext(TEXT_DOMAIN, "invalid diff data")); - case EZFS_POOLREADONLY: - return (dgettext(TEXT_DOMAIN, "pool is read-only")); - case EZFS_NO_PENDING: - return (dgettext(TEXT_DOMAIN, "operation is not " - "in progress")); - case EZFS_CHECKPOINT_EXISTS: - return (dgettext(TEXT_DOMAIN, "checkpoint exists")); - case EZFS_DISCARDING_CHECKPOINT: - return (dgettext(TEXT_DOMAIN, "currently discarding " - "checkpoint")); - case EZFS_NO_CHECKPOINT: - return (dgettext(TEXT_DOMAIN, "checkpoint does not exist")); - case EZFS_DEVRM_IN_PROGRESS: - return (dgettext(TEXT_DOMAIN, "device removal in progress")); - case EZFS_VDEV_TOO_BIG: - return (dgettext(TEXT_DOMAIN, "device exceeds supported size")); - case EZFS_ACTIVE_POOL: - return (dgettext(TEXT_DOMAIN, "pool is imported on a " - "different host")); - case EZFS_TOOMANY: - return (dgettext(TEXT_DOMAIN, "argument list too long")); - case EZFS_INITIALIZING: - return (dgettext(TEXT_DOMAIN, "currently initializing")); - case EZFS_NO_INITIALIZE: - return (dgettext(TEXT_DOMAIN, "there is no active " - "initialization")); - case EZFS_WRONG_PARENT: - return (dgettext(TEXT_DOMAIN, "invalid parent dataset")); - case EZFS_UNKNOWN: - return (dgettext(TEXT_DOMAIN, "unknown error")); - default: - assert(hdl->libzfs_error == 0); - return (dgettext(TEXT_DOMAIN, "no error")); - } -} - -/*PRINTFLIKE2*/ -void -zfs_error_aux(libzfs_handle_t *hdl, const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - - (void) vsnprintf(hdl->libzfs_desc, sizeof (hdl->libzfs_desc), - fmt, ap); - hdl->libzfs_desc_active = 1; - - va_end(ap); -} - -static void -zfs_verror(libzfs_handle_t *hdl, int error, const char *fmt, va_list ap) -{ - (void) vsnprintf(hdl->libzfs_action, sizeof (hdl->libzfs_action), - fmt, ap); - hdl->libzfs_error = error; - - if (hdl->libzfs_desc_active) - hdl->libzfs_desc_active = 0; - else - hdl->libzfs_desc[0] = '\0'; - - if (hdl->libzfs_printerr) { - if (error == EZFS_UNKNOWN) { - (void) fprintf(stderr, dgettext(TEXT_DOMAIN, "internal " - "error: %s\n"), libzfs_error_description(hdl)); - abort(); - } - - (void) fprintf(stderr, "%s: %s\n", hdl->libzfs_action, - libzfs_error_description(hdl)); - if (error == EZFS_NOMEM) - exit(1); - } -} - -int -zfs_error(libzfs_handle_t *hdl, int error, const char *msg) -{ - return (zfs_error_fmt(hdl, error, "%s", msg)); -} - -/*PRINTFLIKE3*/ -int -zfs_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - - zfs_verror(hdl, error, fmt, ap); - - va_end(ap); - - return (-1); -} - -static int -zfs_common_error(libzfs_handle_t *hdl, int error, const char *fmt, - va_list ap) -{ - switch (error) { - case EPERM: - case EACCES: - zfs_verror(hdl, EZFS_PERM, fmt, ap); - return (-1); - - case ECANCELED: - zfs_verror(hdl, EZFS_NODELEGATION, fmt, ap); - return (-1); - - case EIO: - zfs_verror(hdl, EZFS_IO, fmt, ap); - return (-1); - - case EFAULT: - zfs_verror(hdl, EZFS_FAULT, fmt, ap); - return (-1); - - case EINTR: - zfs_verror(hdl, EZFS_INTR, fmt, ap); - return (-1); - } - - return (0); -} - -int -zfs_standard_error(libzfs_handle_t *hdl, int error, const char *msg) -{ - return (zfs_standard_error_fmt(hdl, error, "%s", msg)); -} - -/*PRINTFLIKE3*/ -int -zfs_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - - if (zfs_common_error(hdl, error, fmt, ap) != 0) { - va_end(ap); - return (-1); - } - - switch (error) { - case ENXIO: - case ENODEV: - case EPIPE: - zfs_verror(hdl, EZFS_IO, fmt, ap); - break; - - case ENOENT: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "dataset does not exist")); - zfs_verror(hdl, EZFS_NOENT, fmt, ap); - break; - - case ENOSPC: - case EDQUOT: - zfs_verror(hdl, EZFS_NOSPC, fmt, ap); - va_end(ap); - return (-1); - - case EEXIST: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "dataset already exists")); - zfs_verror(hdl, EZFS_EXISTS, fmt, ap); - break; - - case EBUSY: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "dataset is busy")); - zfs_verror(hdl, EZFS_BUSY, fmt, ap); - break; - case EROFS: - zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap); - break; - case ENAMETOOLONG: - zfs_verror(hdl, EZFS_NAMETOOLONG, fmt, ap); - break; - case ENOTSUP: - zfs_verror(hdl, EZFS_BADVERSION, fmt, ap); - break; - case EAGAIN: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "pool I/O is currently suspended")); - zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap); - break; - case EREMOTEIO: - zfs_verror(hdl, EZFS_ACTIVE_POOL, fmt, ap); - break; - case ZFS_ERR_IOC_CMD_UNAVAIL: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "the loaded zfs " - "module does not support this operation. A reboot may " - "be required to enable this operation.")); - zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap); - break; - case ZFS_ERR_IOC_ARG_UNAVAIL: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "the loaded zfs " - "module does not support an option for this operation. " - "A reboot may be required to enable this option.")); - zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap); - break; - case ZFS_ERR_IOC_ARG_REQUIRED: - case ZFS_ERR_IOC_ARG_BADTYPE: - zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap); - break; - default: - zfs_error_aux(hdl, strerror(error)); - zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap); - break; - } - - va_end(ap); - return (-1); -} - -int -zpool_standard_error(libzfs_handle_t *hdl, int error, const char *msg) -{ - return (zpool_standard_error_fmt(hdl, error, "%s", msg)); -} - -/*PRINTFLIKE3*/ -int -zpool_standard_error_fmt(libzfs_handle_t *hdl, int error, const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - - if (zfs_common_error(hdl, error, fmt, ap) != 0) { - va_end(ap); - return (-1); - } - - switch (error) { - case ENODEV: - zfs_verror(hdl, EZFS_NODEVICE, fmt, ap); - break; - - case ENOENT: - zfs_error_aux(hdl, - dgettext(TEXT_DOMAIN, "no such pool or dataset")); - zfs_verror(hdl, EZFS_NOENT, fmt, ap); - break; - - case EEXIST: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "pool already exists")); - zfs_verror(hdl, EZFS_EXISTS, fmt, ap); - break; - - case EBUSY: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "pool is busy")); - zfs_verror(hdl, EZFS_BUSY, fmt, ap); - break; - - case ENXIO: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "one or more devices is currently unavailable")); - zfs_verror(hdl, EZFS_BADDEV, fmt, ap); - break; - - case ENAMETOOLONG: - zfs_verror(hdl, EZFS_DEVOVERFLOW, fmt, ap); - break; - - case ENOTSUP: - zfs_verror(hdl, EZFS_POOL_NOTSUP, fmt, ap); - break; - - case EINVAL: - zfs_verror(hdl, EZFS_POOL_INVALARG, fmt, ap); - break; - - case ENOSPC: - case EDQUOT: - zfs_verror(hdl, EZFS_NOSPC, fmt, ap); - va_end(ap); - return (-1); - - case EAGAIN: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "pool I/O is currently suspended")); - zfs_verror(hdl, EZFS_POOLUNAVAIL, fmt, ap); - break; - - case EROFS: - zfs_verror(hdl, EZFS_POOLREADONLY, fmt, ap); - break; - /* There is no pending operation to cancel */ - case ESRCH: - zfs_verror(hdl, EZFS_NO_PENDING, fmt, ap); - break; - case EREMOTEIO: - zfs_verror(hdl, EZFS_ACTIVE_POOL, fmt, ap); - break; - case ZFS_ERR_CHECKPOINT_EXISTS: - zfs_verror(hdl, EZFS_CHECKPOINT_EXISTS, fmt, ap); - break; - case ZFS_ERR_DISCARDING_CHECKPOINT: - zfs_verror(hdl, EZFS_DISCARDING_CHECKPOINT, fmt, ap); - break; - case ZFS_ERR_NO_CHECKPOINT: - zfs_verror(hdl, EZFS_NO_CHECKPOINT, fmt, ap); - break; - case ZFS_ERR_DEVRM_IN_PROGRESS: - zfs_verror(hdl, EZFS_DEVRM_IN_PROGRESS, fmt, ap); - break; - case ZFS_ERR_VDEV_TOO_BIG: - zfs_verror(hdl, EZFS_VDEV_TOO_BIG, fmt, ap); - break; - case ZFS_ERR_WRONG_PARENT: - zfs_verror(hdl, EZFS_WRONG_PARENT, fmt, ap); - break; - case ZFS_ERR_IOC_CMD_UNAVAIL: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "the loaded zfs " - "module does not support this operation. A reboot may " - "be required to enable this operation.")); - zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap); - break; - case ZFS_ERR_IOC_ARG_UNAVAIL: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, "the loaded zfs " - "module does not support an option for this operation. " - "A reboot may be required to enable this option.")); - zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap); - break; - case ZFS_ERR_IOC_ARG_REQUIRED: - case ZFS_ERR_IOC_ARG_BADTYPE: - zfs_verror(hdl, EZFS_IOC_NOTSUPPORTED, fmt, ap); - break; - default: - zfs_error_aux(hdl, strerror(error)); - zfs_verror(hdl, EZFS_UNKNOWN, fmt, ap); - } - - va_end(ap); - return (-1); -} - -/* - * Display an out of memory error message and abort the current program. - */ -int -no_memory(libzfs_handle_t *hdl) -{ - return (zfs_error(hdl, EZFS_NOMEM, "internal error")); -} - -/* - * A safe form of malloc() which will die if the allocation fails. - */ -void * -zfs_alloc(libzfs_handle_t *hdl, size_t size) -{ - void *data; - - if ((data = calloc(1, size)) == NULL) - (void) no_memory(hdl); - - return (data); -} - -/* - * A safe form of asprintf() which will die if the allocation fails. - */ -/*PRINTFLIKE2*/ -char * -zfs_asprintf(libzfs_handle_t *hdl, const char *fmt, ...) -{ - va_list ap; - char *ret; - int err; - - va_start(ap, fmt); - - err = vasprintf(&ret, fmt, ap); - - va_end(ap); - - if (err < 0) - (void) no_memory(hdl); - - return (ret); -} - -/* - * A safe form of realloc(), which also zeroes newly allocated space. - */ -void * -zfs_realloc(libzfs_handle_t *hdl, void *ptr, size_t oldsize, size_t newsize) -{ - void *ret; - - if ((ret = realloc(ptr, newsize)) == NULL) { - (void) no_memory(hdl); - return (NULL); - } - - bzero((char *)ret + oldsize, (newsize - oldsize)); - return (ret); -} - -/* - * A safe form of strdup() which will die if the allocation fails. - */ -char * -zfs_strdup(libzfs_handle_t *hdl, const char *str) -{ - char *ret; - - if ((ret = strdup(str)) == NULL) - (void) no_memory(hdl); - - return (ret); -} - -/* - * Convert a number to an appropriately human-readable output. - */ -void -zfs_nicenum(uint64_t num, char *buf, size_t buflen) -{ - nicenum(num, buf, buflen); -} - -void -libzfs_print_on_error(libzfs_handle_t *hdl, boolean_t printerr) -{ - hdl->libzfs_printerr = printerr; -} - -static int -libzfs_load(void) -{ - int error; - - if (modfind("zfs") < 0) { - /* Not present in kernel, try loading it. */ - if (kldload("zfs") < 0 || modfind("zfs") < 0) { - if (errno != EEXIST) - return (-1); - } - } - return (0); -} - -libzfs_handle_t * -libzfs_init(void) -{ - libzfs_handle_t *hdl; - - if ((hdl = calloc(1, sizeof (libzfs_handle_t))) == NULL) { - return (NULL); - } - - if (libzfs_load() < 0) { - free(hdl); - return (NULL); - } - - if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) { - free(hdl); - return (NULL); - } - - if ((hdl->libzfs_mnttab = fopen(MNTTAB, "r")) == NULL) { - (void) close(hdl->libzfs_fd); - free(hdl); - return (NULL); - } - - hdl->libzfs_sharetab = fopen(ZFS_EXPORTS_PATH, "r"); - - if (libzfs_core_init() != 0) { - (void) close(hdl->libzfs_fd); - (void) fclose(hdl->libzfs_mnttab); - (void) fclose(hdl->libzfs_sharetab); - free(hdl); - return (NULL); - } - - zfs_prop_init(); - zpool_prop_init(); - zpool_feature_init(); - libzfs_mnttab_init(hdl); - - if (getenv("ZFS_PROP_DEBUG") != NULL) { - hdl->libzfs_prop_debug = B_TRUE; - } - - return (hdl); -} - -void -libzfs_fini(libzfs_handle_t *hdl) -{ - (void) close(hdl->libzfs_fd); - if (hdl->libzfs_mnttab) - (void) fclose(hdl->libzfs_mnttab); - if (hdl->libzfs_sharetab) - (void) fclose(hdl->libzfs_sharetab); - zfs_uninit_libshare(hdl); - zpool_free_handles(hdl); -#ifdef illumos - libzfs_fru_clear(hdl, B_TRUE); -#endif - namespace_clear(hdl); - libzfs_mnttab_fini(hdl); - libzfs_core_fini(); - free(hdl); -} - -libzfs_handle_t * -zpool_get_handle(zpool_handle_t *zhp) -{ - return (zhp->zpool_hdl); -} - -libzfs_handle_t * -zfs_get_handle(zfs_handle_t *zhp) -{ - return (zhp->zfs_hdl); -} - -zpool_handle_t * -zfs_get_pool_handle(const zfs_handle_t *zhp) -{ - return (zhp->zpool_hdl); -} - -/* - * Given a name, determine whether or not it's a valid path - * (starts with '/' or "./"). If so, walk the mnttab trying - * to match the device number. If not, treat the path as an - * fs/vol/snap/bkmark name. - */ -zfs_handle_t * -zfs_path_to_zhandle(libzfs_handle_t *hdl, char *path, zfs_type_t argtype) -{ - struct stat64 statbuf; - struct extmnttab entry; - int ret; - - if (path[0] != '/' && strncmp(path, "./", strlen("./")) != 0) { - /* - * It's not a valid path, assume it's a name of type 'argtype'. - */ - return (zfs_open(hdl, path, argtype)); - } - - if (stat64(path, &statbuf) != 0) { - (void) fprintf(stderr, "%s: %s\n", path, strerror(errno)); - return (NULL); - } - -#ifdef illumos - rewind(hdl->libzfs_mnttab); - while ((ret = getextmntent(hdl->libzfs_mnttab, &entry, 0)) == 0) { - if (makedevice(entry.mnt_major, entry.mnt_minor) == - statbuf.st_dev) { - break; - } - } -#else - { - struct statfs sfs; - - ret = statfs(path, &sfs); - if (ret == 0) - statfs2mnttab(&sfs, &entry); - else { - (void) fprintf(stderr, "%s: %s\n", path, - strerror(errno)); - } - } -#endif /* illumos */ - if (ret != 0) { - return (NULL); - } - - if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { - (void) fprintf(stderr, gettext("'%s': not a ZFS filesystem\n"), - path); - return (NULL); - } - - return (zfs_open(hdl, entry.mnt_special, ZFS_TYPE_FILESYSTEM)); -} - -/* - * Initialize the zc_nvlist_dst member to prepare for receiving an nvlist from - * an ioctl(). - */ -int -zcmd_alloc_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, size_t len) -{ - if (len == 0) - len = 16 * 1024; - zc->zc_nvlist_dst_size = len; - zc->zc_nvlist_dst = - (uint64_t)(uintptr_t)zfs_alloc(hdl, zc->zc_nvlist_dst_size); - if (zc->zc_nvlist_dst == 0) - return (-1); - - return (0); -} - -/* - * Called when an ioctl() which returns an nvlist fails with ENOMEM. This will - * expand the nvlist to the size specified in 'zc_nvlist_dst_size', which was - * filled in by the kernel to indicate the actual required size. - */ -int -zcmd_expand_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc) -{ - free((void *)(uintptr_t)zc->zc_nvlist_dst); - zc->zc_nvlist_dst = - (uint64_t)(uintptr_t)zfs_alloc(hdl, zc->zc_nvlist_dst_size); - if (zc->zc_nvlist_dst == 0) - return (-1); - - return (0); -} - -/* - * Called to free the src and dst nvlists stored in the command structure. - */ -void -zcmd_free_nvlists(zfs_cmd_t *zc) -{ - free((void *)(uintptr_t)zc->zc_nvlist_conf); - free((void *)(uintptr_t)zc->zc_nvlist_src); - free((void *)(uintptr_t)zc->zc_nvlist_dst); - zc->zc_nvlist_conf = NULL; - zc->zc_nvlist_src = NULL; - zc->zc_nvlist_dst = NULL; -} - -static int -zcmd_write_nvlist_com(libzfs_handle_t *hdl, uint64_t *outnv, uint64_t *outlen, - nvlist_t *nvl) -{ - char *packed; - size_t len; - - verify(nvlist_size(nvl, &len, NV_ENCODE_NATIVE) == 0); - - if ((packed = zfs_alloc(hdl, len)) == NULL) - return (-1); - - verify(nvlist_pack(nvl, &packed, &len, NV_ENCODE_NATIVE, 0) == 0); - - *outnv = (uint64_t)(uintptr_t)packed; - *outlen = len; - - return (0); -} - -int -zcmd_write_conf_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl) -{ - return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_conf, - &zc->zc_nvlist_conf_size, nvl)); -} - -int -zcmd_write_src_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t *nvl) -{ - return (zcmd_write_nvlist_com(hdl, &zc->zc_nvlist_src, - &zc->zc_nvlist_src_size, nvl)); -} - -/* - * Unpacks an nvlist from the ZFS ioctl command structure. - */ -int -zcmd_read_dst_nvlist(libzfs_handle_t *hdl, zfs_cmd_t *zc, nvlist_t **nvlp) -{ - if (nvlist_unpack((void *)(uintptr_t)zc->zc_nvlist_dst, - zc->zc_nvlist_dst_size, nvlp, 0) != 0) - return (no_memory(hdl)); - - return (0); -} - -int -zfs_ioctl(libzfs_handle_t *hdl, int request, zfs_cmd_t *zc) -{ - return (ioctl(hdl->libzfs_fd, request, zc)); -} - -/* - * ================================================================ - * API shared by zfs and zpool property management - * ================================================================ - */ - -static void -zprop_print_headers(zprop_get_cbdata_t *cbp, zfs_type_t type) -{ - zprop_list_t *pl = cbp->cb_proplist; - int i; - char *title; - size_t len; - - cbp->cb_first = B_FALSE; - if (cbp->cb_scripted) - return; - - /* - * Start with the length of the column headers. - */ - cbp->cb_colwidths[GET_COL_NAME] = strlen(dgettext(TEXT_DOMAIN, "NAME")); - cbp->cb_colwidths[GET_COL_PROPERTY] = strlen(dgettext(TEXT_DOMAIN, - "PROPERTY")); - cbp->cb_colwidths[GET_COL_VALUE] = strlen(dgettext(TEXT_DOMAIN, - "VALUE")); - cbp->cb_colwidths[GET_COL_RECVD] = strlen(dgettext(TEXT_DOMAIN, - "RECEIVED")); - cbp->cb_colwidths[GET_COL_SOURCE] = strlen(dgettext(TEXT_DOMAIN, - "SOURCE")); - - /* first property is always NAME */ - assert(cbp->cb_proplist->pl_prop == - ((type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : ZFS_PROP_NAME)); - - /* - * Go through and calculate the widths for each column. For the - * 'source' column, we kludge it up by taking the worst-case scenario of - * inheriting from the longest name. This is acceptable because in the - * majority of cases 'SOURCE' is the last column displayed, and we don't - * use the width anyway. Note that the 'VALUE' column can be oversized, - * if the name of the property is much longer than any values we find. - */ - for (pl = cbp->cb_proplist; pl != NULL; pl = pl->pl_next) { - /* - * 'PROPERTY' column - */ - if (pl->pl_prop != ZPROP_INVAL) { - const char *propname = (type == ZFS_TYPE_POOL) ? - zpool_prop_to_name(pl->pl_prop) : - zfs_prop_to_name(pl->pl_prop); - - len = strlen(propname); - if (len > cbp->cb_colwidths[GET_COL_PROPERTY]) - cbp->cb_colwidths[GET_COL_PROPERTY] = len; - } else { - len = strlen(pl->pl_user_prop); - if (len > cbp->cb_colwidths[GET_COL_PROPERTY]) - cbp->cb_colwidths[GET_COL_PROPERTY] = len; - } - - /* - * 'VALUE' column. The first property is always the 'name' - * property that was tacked on either by /sbin/zfs's - * zfs_do_get() or when calling zprop_expand_list(), so we - * ignore its width. If the user specified the name property - * to display, then it will be later in the list in any case. - */ - if (pl != cbp->cb_proplist && - pl->pl_width > cbp->cb_colwidths[GET_COL_VALUE]) - cbp->cb_colwidths[GET_COL_VALUE] = pl->pl_width; - - /* 'RECEIVED' column. */ - if (pl != cbp->cb_proplist && - pl->pl_recvd_width > cbp->cb_colwidths[GET_COL_RECVD]) - cbp->cb_colwidths[GET_COL_RECVD] = pl->pl_recvd_width; - - /* - * 'NAME' and 'SOURCE' columns - */ - if (pl->pl_prop == (type == ZFS_TYPE_POOL ? ZPOOL_PROP_NAME : - ZFS_PROP_NAME) && - pl->pl_width > cbp->cb_colwidths[GET_COL_NAME]) { - cbp->cb_colwidths[GET_COL_NAME] = pl->pl_width; - cbp->cb_colwidths[GET_COL_SOURCE] = pl->pl_width + - strlen(dgettext(TEXT_DOMAIN, "inherited from")); - } - } - - /* - * Now go through and print the headers. - */ - for (i = 0; i < ZFS_GET_NCOLS; i++) { - switch (cbp->cb_columns[i]) { - case GET_COL_NAME: - title = dgettext(TEXT_DOMAIN, "NAME"); - break; - case GET_COL_PROPERTY: - title = dgettext(TEXT_DOMAIN, "PROPERTY"); - break; - case GET_COL_VALUE: - title = dgettext(TEXT_DOMAIN, "VALUE"); - break; - case GET_COL_RECVD: - title = dgettext(TEXT_DOMAIN, "RECEIVED"); - break; - case GET_COL_SOURCE: - title = dgettext(TEXT_DOMAIN, "SOURCE"); - break; - default: - title = NULL; - } - - if (title != NULL) { - if (i == (ZFS_GET_NCOLS - 1) || - cbp->cb_columns[i + 1] == GET_COL_NONE) - (void) printf("%s", title); - else - (void) printf("%-*s ", - cbp->cb_colwidths[cbp->cb_columns[i]], - title); - } - } - (void) printf("\n"); -} - -/* - * Display a single line of output, according to the settings in the callback - * structure. - */ -void -zprop_print_one_property(const char *name, zprop_get_cbdata_t *cbp, - const char *propname, const char *value, zprop_source_t sourcetype, - const char *source, const char *recvd_value) -{ - int i; - const char *str = NULL; - char buf[128]; - - /* - * Ignore those source types that the user has chosen to ignore. - */ - if ((sourcetype & cbp->cb_sources) == 0) - return; - - if (cbp->cb_first) - zprop_print_headers(cbp, cbp->cb_type); - - for (i = 0; i < ZFS_GET_NCOLS; i++) { - switch (cbp->cb_columns[i]) { - case GET_COL_NAME: - str = name; - break; - - case GET_COL_PROPERTY: - str = propname; - break; - - case GET_COL_VALUE: - str = value; - break; - - case GET_COL_SOURCE: - switch (sourcetype) { - case ZPROP_SRC_NONE: - str = "-"; - break; - - case ZPROP_SRC_DEFAULT: - str = "default"; - break; - - case ZPROP_SRC_LOCAL: - str = "local"; - break; - - case ZPROP_SRC_TEMPORARY: - str = "temporary"; - break; - - case ZPROP_SRC_INHERITED: - (void) snprintf(buf, sizeof (buf), - "inherited from %s", source); - str = buf; - break; - case ZPROP_SRC_RECEIVED: - str = "received"; - break; - - default: - str = NULL; - assert(!"unhandled zprop_source_t"); - } - break; - - case GET_COL_RECVD: - str = (recvd_value == NULL ? "-" : recvd_value); - break; - - default: - continue; - } - - if (cbp->cb_columns[i + 1] == GET_COL_NONE) - (void) printf("%s", str); - else if (cbp->cb_scripted) - (void) printf("%s\t", str); - else - (void) printf("%-*s ", - cbp->cb_colwidths[cbp->cb_columns[i]], - str); - } - - (void) printf("\n"); -} - -/* - * Given a numeric suffix, convert the value into a number of bits that the - * resulting value must be shifted. - */ -static int -str2shift(libzfs_handle_t *hdl, const char *buf) -{ - const char *ends = "BKMGTPEZ"; - int i; - - if (buf[0] == '\0') - return (0); - for (i = 0; i < strlen(ends); i++) { - if (toupper(buf[0]) == ends[i]) - break; - } - if (i == strlen(ends)) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "invalid numeric suffix '%s'"), buf); - return (-1); - } - - /* - * We want to allow trailing 'b' characters for 'GB' or 'Mb'. But don't - * allow 'BB' - that's just weird. - */ - if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0' && - toupper(buf[0]) != 'B')) - return (10*i); - - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "invalid numeric suffix '%s'"), buf); - return (-1); -} - -/* - * Convert a string of the form '100G' into a real number. Used when setting - * properties or creating a volume. 'buf' is used to place an extended error - * message for the caller to use. - */ -int -zfs_nicestrtonum(libzfs_handle_t *hdl, const char *value, uint64_t *num) -{ - char *end; - int shift; - - *num = 0; - - /* Check to see if this looks like a number. */ - if ((value[0] < '0' || value[0] > '9') && value[0] != '.') { - if (hdl) - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "bad numeric value '%s'"), value); - return (-1); - } - - /* Rely on strtoull() to process the numeric portion. */ - errno = 0; - *num = strtoull(value, &end, 10); - - /* - * Check for ERANGE, which indicates that the value is too large to fit - * in a 64-bit value. - */ - if (errno == ERANGE) { - if (hdl) - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "numeric value is too large")); - return (-1); - } - - /* - * If we have a decimal value, then do the computation with floating - * point arithmetic. Otherwise, use standard arithmetic. - */ - if (*end == '.') { - double fval = strtod(value, &end); - - if ((shift = str2shift(hdl, end)) == -1) - return (-1); - - fval *= pow(2, shift); - - if (fval > UINT64_MAX) { - if (hdl) - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "numeric value is too large")); - return (-1); - } - - *num = (uint64_t)fval; - } else { - if ((shift = str2shift(hdl, end)) == -1) - return (-1); - - /* Check for overflow */ - if (shift >= 64 || (*num << shift) >> shift != *num) { - if (hdl) - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "numeric value is too large")); - return (-1); - } - - *num <<= shift; - } - - return (0); -} - -/* - * Given a propname=value nvpair to set, parse any numeric properties - * (index, boolean, etc) if they are specified as strings and add the - * resulting nvpair to the returned nvlist. - * - * At the DSL layer, all properties are either 64-bit numbers or strings. - * We want the user to be able to ignore this fact and specify properties - * as native values (numbers, for example) or as strings (to simplify - * command line utilities). This also handles converting index types - * (compression, checksum, etc) from strings to their on-disk index. - */ -int -zprop_parse_value(libzfs_handle_t *hdl, nvpair_t *elem, int prop, - zfs_type_t type, nvlist_t *ret, char **svalp, uint64_t *ivalp, - const char *errbuf) -{ - data_type_t datatype = nvpair_type(elem); - zprop_type_t proptype; - const char *propname; - char *value; - boolean_t isnone = B_FALSE; - boolean_t isauto = B_FALSE; - - if (type == ZFS_TYPE_POOL) { - proptype = zpool_prop_get_type(prop); - propname = zpool_prop_to_name(prop); - } else { - proptype = zfs_prop_get_type(prop); - propname = zfs_prop_to_name(prop); - } - - /* - * Convert any properties to the internal DSL value types. - */ - *svalp = NULL; - *ivalp = 0; - - switch (proptype) { - case PROP_TYPE_STRING: - if (datatype != DATA_TYPE_STRING) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "'%s' must be a string"), nvpair_name(elem)); - goto error; - } - (void) nvpair_value_string(elem, svalp); - if (strlen(*svalp) >= ZFS_MAXPROPLEN) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "'%s' is too long"), nvpair_name(elem)); - goto error; - } - break; - - case PROP_TYPE_NUMBER: - if (datatype == DATA_TYPE_STRING) { - (void) nvpair_value_string(elem, &value); - if (strcmp(value, "none") == 0) { - isnone = B_TRUE; - } else if (strcmp(value, "auto") == 0) { - isauto = B_TRUE; - } else if (zfs_nicestrtonum(hdl, value, ivalp) != 0) { - goto error; - } - } else if (datatype == DATA_TYPE_UINT64) { - (void) nvpair_value_uint64(elem, ivalp); - } else { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "'%s' must be a number"), nvpair_name(elem)); - goto error; - } - - /* - * Quota special: force 'none' and don't allow 0. - */ - if ((type & ZFS_TYPE_DATASET) && *ivalp == 0 && !isnone && - (prop == ZFS_PROP_QUOTA || prop == ZFS_PROP_REFQUOTA)) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "use 'none' to disable quota/refquota")); - goto error; - } - - /* - * Special handling for "*_limit=none". In this case it's not - * 0 but UINT64_MAX. - */ - if ((type & ZFS_TYPE_DATASET) && isnone && - (prop == ZFS_PROP_FILESYSTEM_LIMIT || - prop == ZFS_PROP_SNAPSHOT_LIMIT)) { - *ivalp = UINT64_MAX; - } - - /* - * Special handling for setting 'refreservation' to 'auto'. Use - * UINT64_MAX to tell the caller to use zfs_fix_auto_resv(). - * 'auto' is only allowed on volumes. - */ - if (isauto) { - switch (prop) { - case ZFS_PROP_REFRESERVATION: - if ((type & ZFS_TYPE_VOLUME) == 0) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "'%s=auto' only allowed on " - "volumes"), nvpair_name(elem)); - goto error; - } - *ivalp = UINT64_MAX; - break; - default: - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "'auto' is invalid value for '%s'"), - nvpair_name(elem)); - goto error; - } - } - - break; - - case PROP_TYPE_INDEX: - if (datatype != DATA_TYPE_STRING) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "'%s' must be a string"), nvpair_name(elem)); - goto error; - } - - (void) nvpair_value_string(elem, &value); - - if (zprop_string_to_index(prop, value, ivalp, type) != 0) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "'%s' must be one of '%s'"), propname, - zprop_values(prop, type)); - goto error; - } - break; - - default: - abort(); - } - - /* - * Add the result to our return set of properties. - */ - if (*svalp != NULL) { - if (nvlist_add_string(ret, propname, *svalp) != 0) { - (void) no_memory(hdl); - return (-1); - } - } else { - if (nvlist_add_uint64(ret, propname, *ivalp) != 0) { - (void) no_memory(hdl); - return (-1); - } - } - - return (0); -error: - (void) zfs_error(hdl, EZFS_BADPROP, errbuf); - return (-1); -} - -static int -addlist(libzfs_handle_t *hdl, char *propname, zprop_list_t **listp, - zfs_type_t type) -{ - int prop; - zprop_list_t *entry; - - prop = zprop_name_to_prop(propname, type); - - if (prop != ZPROP_INVAL && !zprop_valid_for_type(prop, type)) - prop = ZPROP_INVAL; - - /* - * When no property table entry can be found, return failure if - * this is a pool property or if this isn't a user-defined - * dataset property, - */ - if (prop == ZPROP_INVAL && ((type == ZFS_TYPE_POOL && - !zpool_prop_feature(propname) && - !zpool_prop_unsupported(propname)) || - (type == ZFS_TYPE_DATASET && !zfs_prop_user(propname) && - !zfs_prop_userquota(propname) && !zfs_prop_written(propname)))) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "invalid property '%s'"), propname); - return (zfs_error(hdl, EZFS_BADPROP, - dgettext(TEXT_DOMAIN, "bad property list"))); - } - - if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL) - return (-1); - - entry->pl_prop = prop; - if (prop == ZPROP_INVAL) { - if ((entry->pl_user_prop = zfs_strdup(hdl, propname)) == - NULL) { - free(entry); - return (-1); - } - entry->pl_width = strlen(propname); - } else { - entry->pl_width = zprop_width(prop, &entry->pl_fixed, - type); - } - - *listp = entry; - - return (0); -} - -/* - * Given a comma-separated list of properties, construct a property list - * containing both user-defined and native properties. This function will - * return a NULL list if 'all' is specified, which can later be expanded - * by zprop_expand_list(). - */ -int -zprop_get_list(libzfs_handle_t *hdl, char *props, zprop_list_t **listp, - zfs_type_t type) -{ - *listp = NULL; - - /* - * If 'all' is specified, return a NULL list. - */ - if (strcmp(props, "all") == 0) - return (0); - - /* - * If no props were specified, return an error. - */ - if (props[0] == '\0') { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "no properties specified")); - return (zfs_error(hdl, EZFS_BADPROP, dgettext(TEXT_DOMAIN, - "bad property list"))); - } - - /* - * It would be nice to use getsubopt() here, but the inclusion of column - * aliases makes this more effort than it's worth. - */ - while (*props != '\0') { - size_t len; - char *p; - char c; - - if ((p = strchr(props, ',')) == NULL) { - len = strlen(props); - p = props + len; - } else { - len = p - props; - } - - /* - * Check for empty options. - */ - if (len == 0) { - zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, - "empty property name")); - return (zfs_error(hdl, EZFS_BADPROP, - dgettext(TEXT_DOMAIN, "bad property list"))); - } - - /* - * Check all regular property names. - */ - c = props[len]; - props[len] = '\0'; - - if (strcmp(props, "space") == 0) { - static char *spaceprops[] = { - "name", "avail", "used", "usedbysnapshots", - "usedbydataset", "usedbyrefreservation", - "usedbychildren", NULL - }; - int i; - - for (i = 0; spaceprops[i]; i++) { - if (addlist(hdl, spaceprops[i], listp, type)) - return (-1); - listp = &(*listp)->pl_next; - } - } else { - if (addlist(hdl, props, listp, type)) - return (-1); - listp = &(*listp)->pl_next; - } - - props = p; - if (c == ',') - props++; - } - - return (0); -} - -void -zprop_free_list(zprop_list_t *pl) -{ - zprop_list_t *next; - - while (pl != NULL) { - next = pl->pl_next; - free(pl->pl_user_prop); - free(pl); - pl = next; - } -} - -typedef struct expand_data { - zprop_list_t **last; - libzfs_handle_t *hdl; - zfs_type_t type; -} expand_data_t; - -int -zprop_expand_list_cb(int prop, void *cb) -{ - zprop_list_t *entry; - expand_data_t *edp = cb; - - if ((entry = zfs_alloc(edp->hdl, sizeof (zprop_list_t))) == NULL) - return (ZPROP_INVAL); - - entry->pl_prop = prop; - entry->pl_width = zprop_width(prop, &entry->pl_fixed, edp->type); - entry->pl_all = B_TRUE; - - *(edp->last) = entry; - edp->last = &entry->pl_next; - - return (ZPROP_CONT); -} - -int -zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, zfs_type_t type) -{ - zprop_list_t *entry; - zprop_list_t **last; - expand_data_t exp; - - if (*plp == NULL) { - /* - * If this is the very first time we've been called for an 'all' - * specification, expand the list to include all native - * properties. - */ - last = plp; - - exp.last = last; - exp.hdl = hdl; - exp.type = type; - - if (zprop_iter_common(zprop_expand_list_cb, &exp, B_FALSE, - B_FALSE, type) == ZPROP_INVAL) - return (-1); - - /* - * Add 'name' to the beginning of the list, which is handled - * specially. - */ - if ((entry = zfs_alloc(hdl, sizeof (zprop_list_t))) == NULL) - return (-1); - - entry->pl_prop = (type == ZFS_TYPE_POOL) ? ZPOOL_PROP_NAME : - ZFS_PROP_NAME; - entry->pl_width = zprop_width(entry->pl_prop, - &entry->pl_fixed, type); - entry->pl_all = B_TRUE; - entry->pl_next = *plp; - *plp = entry; - } - return (0); -} - -int -zprop_iter(zprop_func func, void *cb, boolean_t show_all, boolean_t ordered, - zfs_type_t type) -{ - return (zprop_iter_common(func, cb, show_all, ordered, type)); -} - -ulong_t -get_system_hostid(void) -{ - char *env; - - /* - * Allow the hostid to be subverted for testing. - */ - env = getenv("ZFS_HOSTID"); - if (env) { - ulong_t hostid = strtoull(env, NULL, 16); - return (hostid & 0xFFFFFFFF); - } - - return (gethostid()); -} |