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 */ 21f3861e1aSahl 22fa9e4066Sahrens /* 2311d2789dSgw * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24fa9e4066Sahrens * Use is subject to license terms. 25fa9e4066Sahrens */ 26fa9e4066Sahrens 27fa9e4066Sahrens #pragma ident "%Z%%M% %I% %E% SMI" 28fa9e4066Sahrens 29fa9e4066Sahrens /* 30fa9e4066Sahrens * Routines to manage ZFS mounts. We separate all the nasty routines that have 31f3861e1aSahl * to deal with the OS. The following functions are the main entry points -- 32f3861e1aSahl * they are used by mount and unmount and when changing a filesystem's 33f3861e1aSahl * mountpoint. 34fa9e4066Sahrens * 35fa9e4066Sahrens * zfs_is_mounted() 36fa9e4066Sahrens * zfs_mount() 37fa9e4066Sahrens * zfs_unmount() 38fa9e4066Sahrens * zfs_unmountall() 39fa9e4066Sahrens * 40f3861e1aSahl * This file also contains the functions used to manage sharing filesystems via 41f3861e1aSahl * NFS and iSCSI: 42fa9e4066Sahrens * 43fa9e4066Sahrens * zfs_is_shared() 44fa9e4066Sahrens * zfs_share() 45fa9e4066Sahrens * zfs_unshare() 46f3861e1aSahl * 47f3861e1aSahl * zfs_is_shared_nfs() 48*da6c28aaSamw * zfs_is_shared_smb() 49f3861e1aSahl * zfs_is_shared_iscsi() 50*da6c28aaSamw * zfs_share_proto() 51*da6c28aaSamw * zfs_shareall(); 52f3861e1aSahl * zfs_share_iscsi() 53*da6c28aaSamw * zfs_unshare_nfs() 54*da6c28aaSamw * zfs_unshare_smb() 55*da6c28aaSamw * zfs_unshareall_nfs() 56*da6c28aaSamw * zfs_unshareall_smb() 57*da6c28aaSamw * zfs_unshareall() 58*da6c28aaSamw * zfs_unshareall_bypath() 59f3861e1aSahl * zfs_unshare_iscsi() 603bb79becSeschrock * 613bb79becSeschrock * The following functions are available for pool consumers, and will 62f3861e1aSahl * mount/unmount and share/unshare all datasets within pool: 633bb79becSeschrock * 64f3861e1aSahl * zpool_enable_datasets() 65f3861e1aSahl * zpool_disable_datasets() 66fa9e4066Sahrens */ 67fa9e4066Sahrens 68fa9e4066Sahrens #include <dirent.h> 69d8d59944Sahl #include <dlfcn.h> 70fa9e4066Sahrens #include <errno.h> 71fa9e4066Sahrens #include <libgen.h> 72fa9e4066Sahrens #include <libintl.h> 73fa9e4066Sahrens #include <stdio.h> 74fa9e4066Sahrens #include <stdlib.h> 75fa9e4066Sahrens #include <strings.h> 76fa9e4066Sahrens #include <unistd.h> 77fa9e4066Sahrens #include <zone.h> 78fa9e4066Sahrens #include <sys/mntent.h> 79fa9e4066Sahrens #include <sys/mnttab.h> 80fa9e4066Sahrens #include <sys/mount.h> 81fa9e4066Sahrens #include <sys/stat.h> 82fa9e4066Sahrens 83fa9e4066Sahrens #include <libzfs.h> 84fa9e4066Sahrens 85fa9e4066Sahrens #include "libzfs_impl.h" 86fa9e4066Sahrens 8767331909Sdougm #include <libshare.h> 8867331909Sdougm #include <sys/systeminfo.h> 8967331909Sdougm #define MAXISALEN 257 /* based on sysinfo(2) man page */ 9067331909Sdougm 91*da6c28aaSamw static int zfs_share_proto(zfs_handle_t *, zfs_share_proto_t *); 92*da6c28aaSamw zfs_share_type_t zfs_is_shared_proto(zfs_handle_t *, char **, 93*da6c28aaSamw zfs_share_proto_t); 94*da6c28aaSamw 95d8d59944Sahl static int (*iscsitgt_zfs_share)(const char *); 96d8d59944Sahl static int (*iscsitgt_zfs_unshare)(const char *); 97d8d59944Sahl static int (*iscsitgt_zfs_is_shared)(const char *); 98ecd6cf80Smarks static int (*iscsitgt_svc_online)(); 99d8d59944Sahl 100*da6c28aaSamw /* 101*da6c28aaSamw * The share protocols table must be in the same order as the zfs_share_prot_t 102*da6c28aaSamw * enum in libzfs_impl.h 103*da6c28aaSamw */ 104*da6c28aaSamw typedef struct { 105*da6c28aaSamw zfs_prop_t p_prop; 106*da6c28aaSamw char *p_name; 107*da6c28aaSamw int p_share_err; 108*da6c28aaSamw int p_unshare_err; 109*da6c28aaSamw } proto_table_t; 110*da6c28aaSamw 111*da6c28aaSamw proto_table_t proto_table[PROTO_END] = { 112*da6c28aaSamw {ZFS_PROP_SHARENFS, "nfs", EZFS_SHARENFSFAILED, EZFS_UNSHARENFSFAILED}, 113*da6c28aaSamw {ZFS_PROP_SHARESMB, "smb", EZFS_SHARESMBFAILED, EZFS_UNSHARESMBFAILED}, 114*da6c28aaSamw }; 115*da6c28aaSamw 116*da6c28aaSamw zfs_share_proto_t nfs_only[] = { 117*da6c28aaSamw PROTO_NFS, 118*da6c28aaSamw PROTO_END 119*da6c28aaSamw }; 120*da6c28aaSamw 121*da6c28aaSamw zfs_share_proto_t smb_only[] = { 122*da6c28aaSamw PROTO_SMB, 123*da6c28aaSamw PROTO_END 124*da6c28aaSamw }; 125*da6c28aaSamw zfs_share_proto_t share_all_proto[] = { 126*da6c28aaSamw PROTO_NFS, 127*da6c28aaSamw PROTO_SMB, 128*da6c28aaSamw PROTO_END 129*da6c28aaSamw }; 130*da6c28aaSamw 131d8d59944Sahl #pragma init(zfs_iscsi_init) 132d8d59944Sahl static void 133d8d59944Sahl zfs_iscsi_init(void) 134d8d59944Sahl { 135d8d59944Sahl void *libiscsitgt; 136d8d59944Sahl 137d8d59944Sahl if ((libiscsitgt = dlopen("/lib/libiscsitgt.so.1", 138d8d59944Sahl RTLD_LAZY | RTLD_GLOBAL)) == NULL || 139d8d59944Sahl (iscsitgt_zfs_share = (int (*)(const char *))dlsym(libiscsitgt, 140d8d59944Sahl "iscsitgt_zfs_share")) == NULL || 141d8d59944Sahl (iscsitgt_zfs_unshare = (int (*)(const char *))dlsym(libiscsitgt, 142d8d59944Sahl "iscsitgt_zfs_unshare")) == NULL || 143d8d59944Sahl (iscsitgt_zfs_is_shared = (int (*)(const char *))dlsym(libiscsitgt, 144ecd6cf80Smarks "iscsitgt_zfs_is_shared")) == NULL || 145ecd6cf80Smarks (iscsitgt_svc_online = (int (*)(const char *))dlsym(libiscsitgt, 146ecd6cf80Smarks "iscsitgt_svc_online")) == NULL) { 147d8d59944Sahl iscsitgt_zfs_share = NULL; 148d8d59944Sahl iscsitgt_zfs_unshare = NULL; 149d8d59944Sahl iscsitgt_zfs_is_shared = NULL; 150ecd6cf80Smarks iscsitgt_svc_online = NULL; 151d8d59944Sahl } 152d8d59944Sahl } 153d8d59944Sahl 154fa9e4066Sahrens /* 155*da6c28aaSamw * Search the sharetab for the given mountpoint and protocol, returning 156*da6c28aaSamw * a zfs_share_type_t value. 157fa9e4066Sahrens */ 158*da6c28aaSamw static zfs_share_type_t 159*da6c28aaSamw is_shared(libzfs_handle_t *hdl, const char *mountpoint, zfs_share_proto_t proto) 160fa9e4066Sahrens { 161fa9e4066Sahrens char buf[MAXPATHLEN], *tab; 162*da6c28aaSamw char *ptr; 163fa9e4066Sahrens 16499653d4eSeschrock if (hdl->libzfs_sharetab == NULL) 165*da6c28aaSamw return (SHARED_NOT_SHARED); 166fa9e4066Sahrens 16799653d4eSeschrock (void) fseek(hdl->libzfs_sharetab, 0, SEEK_SET); 168fa9e4066Sahrens 16999653d4eSeschrock while (fgets(buf, sizeof (buf), hdl->libzfs_sharetab) != NULL) { 170fa9e4066Sahrens 171fa9e4066Sahrens /* the mountpoint is the first entry on each line */ 172*da6c28aaSamw if ((tab = strchr(buf, '\t')) == NULL) 173*da6c28aaSamw continue; 174*da6c28aaSamw 175*da6c28aaSamw *tab = '\0'; 176*da6c28aaSamw if (strcmp(buf, mountpoint) == 0) { 177*da6c28aaSamw /* 178*da6c28aaSamw * the protocol field is the third field 179*da6c28aaSamw * skip over second field 180*da6c28aaSamw */ 181*da6c28aaSamw ptr = ++tab; 182*da6c28aaSamw if ((tab = strchr(ptr, '\t')) == NULL) 183*da6c28aaSamw continue; 184*da6c28aaSamw ptr = ++tab; 185*da6c28aaSamw if ((tab = strchr(ptr, '\t')) == NULL) 186*da6c28aaSamw continue; 187fa9e4066Sahrens *tab = '\0'; 188*da6c28aaSamw if (strcmp(ptr, 189*da6c28aaSamw proto_table[proto].p_name) == 0) { 190*da6c28aaSamw switch (proto) { 191*da6c28aaSamw case PROTO_NFS: 192*da6c28aaSamw return (SHARED_NFS); 193*da6c28aaSamw case PROTO_SMB: 194*da6c28aaSamw return (SHARED_SMB); 195*da6c28aaSamw default: 196*da6c28aaSamw return (0); 197*da6c28aaSamw } 198*da6c28aaSamw } 199fa9e4066Sahrens } 200fa9e4066Sahrens } 201fa9e4066Sahrens 202*da6c28aaSamw return (SHARED_NOT_SHARED); 203fa9e4066Sahrens } 204fa9e4066Sahrens 205fa9e4066Sahrens /* 20699653d4eSeschrock * Returns true if the specified directory is empty. If we can't open the 20799653d4eSeschrock * directory at all, return true so that the mount can fail with a more 208fa9e4066Sahrens * informative error message. 209fa9e4066Sahrens */ 21099653d4eSeschrock static boolean_t 211fa9e4066Sahrens dir_is_empty(const char *dirname) 212fa9e4066Sahrens { 213fa9e4066Sahrens DIR *dirp; 214fa9e4066Sahrens struct dirent64 *dp; 215fa9e4066Sahrens 216fa9e4066Sahrens if ((dirp = opendir(dirname)) == NULL) 21799653d4eSeschrock return (B_TRUE); 218fa9e4066Sahrens 219fa9e4066Sahrens while ((dp = readdir64(dirp)) != NULL) { 220fa9e4066Sahrens 221fa9e4066Sahrens if (strcmp(dp->d_name, ".") == 0 || 222fa9e4066Sahrens strcmp(dp->d_name, "..") == 0) 223fa9e4066Sahrens continue; 224fa9e4066Sahrens 225fa9e4066Sahrens (void) closedir(dirp); 22699653d4eSeschrock return (B_FALSE); 227fa9e4066Sahrens } 228fa9e4066Sahrens 229fa9e4066Sahrens (void) closedir(dirp); 23099653d4eSeschrock return (B_TRUE); 231fa9e4066Sahrens } 232fa9e4066Sahrens 233fa9e4066Sahrens /* 234fa9e4066Sahrens * Checks to see if the mount is active. If the filesystem is mounted, we fill 235fa9e4066Sahrens * in 'where' with the current mountpoint, and return 1. Otherwise, we return 236fa9e4066Sahrens * 0. 237fa9e4066Sahrens */ 23899653d4eSeschrock boolean_t 23955434c77Sek is_mounted(libzfs_handle_t *zfs_hdl, const char *special, char **where) 240fa9e4066Sahrens { 241fa9e4066Sahrens struct mnttab search = { 0 }, entry; 242fa9e4066Sahrens 243fa9e4066Sahrens /* 244fa9e4066Sahrens * Search for the entry in /etc/mnttab. We don't bother getting the 245fa9e4066Sahrens * mountpoint, as we can just search for the special device. This will 246fa9e4066Sahrens * also let us find mounts when the mountpoint is 'legacy'. 247fa9e4066Sahrens */ 24855434c77Sek search.mnt_special = (char *)special; 24996dedd18Snd search.mnt_fstype = MNTTYPE_ZFS; 250fa9e4066Sahrens 25155434c77Sek rewind(zfs_hdl->libzfs_mnttab); 25255434c77Sek if (getmntany(zfs_hdl->libzfs_mnttab, &entry, &search) != 0) 25399653d4eSeschrock return (B_FALSE); 254fa9e4066Sahrens 255fa9e4066Sahrens if (where != NULL) 25655434c77Sek *where = zfs_strdup(zfs_hdl, entry.mnt_mountp); 257fa9e4066Sahrens 25899653d4eSeschrock return (B_TRUE); 259fa9e4066Sahrens } 260fa9e4066Sahrens 26155434c77Sek boolean_t 26255434c77Sek zfs_is_mounted(zfs_handle_t *zhp, char **where) 26355434c77Sek { 26455434c77Sek return (is_mounted(zhp->zfs_hdl, zfs_get_name(zhp), where)); 26555434c77Sek } 26655434c77Sek 267e9dbad6fSeschrock /* 268e9dbad6fSeschrock * Returns true if the given dataset is mountable, false otherwise. Returns the 269e9dbad6fSeschrock * mountpoint in 'buf'. 270e9dbad6fSeschrock */ 271e9dbad6fSeschrock static boolean_t 272e9dbad6fSeschrock zfs_is_mountable(zfs_handle_t *zhp, char *buf, size_t buflen, 273990b4856Slling zprop_source_t *source) 274e9dbad6fSeschrock { 275e9dbad6fSeschrock char sourceloc[ZFS_MAXNAMELEN]; 276990b4856Slling zprop_source_t sourcetype; 277e9dbad6fSeschrock 278e9dbad6fSeschrock if (!zfs_prop_valid_for_type(ZFS_PROP_MOUNTPOINT, zhp->zfs_type)) 279e9dbad6fSeschrock return (B_FALSE); 280e9dbad6fSeschrock 281e9dbad6fSeschrock verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, buf, buflen, 282e9dbad6fSeschrock &sourcetype, sourceloc, sizeof (sourceloc), B_FALSE) == 0); 283e9dbad6fSeschrock 284e9dbad6fSeschrock if (strcmp(buf, ZFS_MOUNTPOINT_NONE) == 0 || 285e9dbad6fSeschrock strcmp(buf, ZFS_MOUNTPOINT_LEGACY) == 0) 286e9dbad6fSeschrock return (B_FALSE); 287e9dbad6fSeschrock 288e9dbad6fSeschrock if (!zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT)) 289e9dbad6fSeschrock return (B_FALSE); 290e9dbad6fSeschrock 291e9dbad6fSeschrock if (zfs_prop_get_int(zhp, ZFS_PROP_ZONED) && 292e9dbad6fSeschrock getzoneid() == GLOBAL_ZONEID) 293e9dbad6fSeschrock return (B_FALSE); 294e9dbad6fSeschrock 295e9dbad6fSeschrock if (source) 296e9dbad6fSeschrock *source = sourcetype; 297e9dbad6fSeschrock 298e9dbad6fSeschrock return (B_TRUE); 299e9dbad6fSeschrock } 300e9dbad6fSeschrock 301fa9e4066Sahrens /* 302fa9e4066Sahrens * Mount the given filesystem. 303fa9e4066Sahrens */ 304fa9e4066Sahrens int 305fa9e4066Sahrens zfs_mount(zfs_handle_t *zhp, const char *options, int flags) 306fa9e4066Sahrens { 307fa9e4066Sahrens struct stat buf; 308fa9e4066Sahrens char mountpoint[ZFS_MAXPROPLEN]; 309fa9e4066Sahrens char mntopts[MNT_LINE_MAX]; 31099653d4eSeschrock libzfs_handle_t *hdl = zhp->zfs_hdl; 311fa9e4066Sahrens 312fa9e4066Sahrens if (options == NULL) 313fa9e4066Sahrens mntopts[0] = '\0'; 314fa9e4066Sahrens else 315fa9e4066Sahrens (void) strlcpy(mntopts, options, sizeof (mntopts)); 316fa9e4066Sahrens 317e9dbad6fSeschrock if (!zfs_is_mountable(zhp, mountpoint, sizeof (mountpoint), NULL)) 31899653d4eSeschrock return (0); 319fa9e4066Sahrens 320fa9e4066Sahrens /* Create the directory if it doesn't already exist */ 321fa9e4066Sahrens if (lstat(mountpoint, &buf) != 0) { 322fa9e4066Sahrens if (mkdirp(mountpoint, 0755) != 0) { 32399653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 32499653d4eSeschrock "failed to create mountpoint")); 325ece3d9b3Slling return (zfs_error_fmt(hdl, EZFS_MOUNTFAILED, 32699653d4eSeschrock dgettext(TEXT_DOMAIN, "cannot mount '%s'"), 32799653d4eSeschrock mountpoint)); 328fa9e4066Sahrens } 329fa9e4066Sahrens } 330fa9e4066Sahrens 331fa9e4066Sahrens /* 332fa9e4066Sahrens * Determine if the mountpoint is empty. If so, refuse to perform the 333fa9e4066Sahrens * mount. We don't perform this check if MS_OVERLAY is specified, which 334fa9e4066Sahrens * would defeat the point. We also avoid this check if 'remount' is 335fa9e4066Sahrens * specified. 336fa9e4066Sahrens */ 337fa9e4066Sahrens if ((flags & MS_OVERLAY) == 0 && 338fa9e4066Sahrens strstr(mntopts, MNTOPT_REMOUNT) == NULL && 339fa9e4066Sahrens !dir_is_empty(mountpoint)) { 34099653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 34199653d4eSeschrock "directory is not empty")); 342ece3d9b3Slling return (zfs_error_fmt(hdl, EZFS_MOUNTFAILED, 34399653d4eSeschrock dgettext(TEXT_DOMAIN, "cannot mount '%s'"), mountpoint)); 344fa9e4066Sahrens } 345fa9e4066Sahrens 346fa9e4066Sahrens /* perform the mount */ 347fa9e4066Sahrens if (mount(zfs_get_name(zhp), mountpoint, MS_OPTIONSTR | flags, 348fa9e4066Sahrens MNTTYPE_ZFS, NULL, 0, mntopts, sizeof (mntopts)) != 0) { 349fa9e4066Sahrens /* 350fa9e4066Sahrens * Generic errors are nasty, but there are just way too many 351fa9e4066Sahrens * from mount(), and they're well-understood. We pick a few 352fa9e4066Sahrens * common ones to improve upon. 353fa9e4066Sahrens */ 354d8689a57Sdougm if (errno == EBUSY) { 35599653d4eSeschrock zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 35699653d4eSeschrock "mountpoint or dataset is busy")); 357ecd6cf80Smarks } else if (errno == EPERM) { 358ecd6cf80Smarks zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 359ecd6cf80Smarks "Insufficient privileges")); 360d8689a57Sdougm } else { 36199653d4eSeschrock zfs_error_aux(hdl, strerror(errno)); 362d8689a57Sdougm } 36399653d4eSeschrock 364ece3d9b3Slling return (zfs_error_fmt(hdl, EZFS_MOUNTFAILED, 36599653d4eSeschrock dgettext(TEXT_DOMAIN, "cannot mount '%s'"), 36699653d4eSeschrock zhp->zfs_name)); 367fa9e4066Sahrens } 368fa9e4066Sahrens 369fa9e4066Sahrens return (0); 370fa9e4066Sahrens } 371fa9e4066Sahrens 3723bb79becSeschrock /* 3733bb79becSeschrock * Unmount a single filesystem. 3743bb79becSeschrock */ 3753bb79becSeschrock static int 3763bb79becSeschrock unmount_one(libzfs_handle_t *hdl, const char *mountpoint, int flags) 3773bb79becSeschrock { 3783bb79becSeschrock if (umount2(mountpoint, flags) != 0) { 3793bb79becSeschrock zfs_error_aux(hdl, strerror(errno)); 380ece3d9b3Slling return (zfs_error_fmt(hdl, EZFS_UMOUNTFAILED, 3813bb79becSeschrock dgettext(TEXT_DOMAIN, "cannot unmount '%s'"), 3823bb79becSeschrock mountpoint)); 3833bb79becSeschrock } 3843bb79becSeschrock 3853bb79becSeschrock return (0); 3863bb79becSeschrock } 3873bb79becSeschrock 388fa9e4066Sahrens /* 389fa9e4066Sahrens * Unmount the given filesystem. 390fa9e4066Sahrens */ 391fa9e4066Sahrens int 392fa9e4066Sahrens zfs_unmount(zfs_handle_t *zhp, const char *mountpoint, int flags) 393fa9e4066Sahrens { 394fa9e4066Sahrens struct mnttab search = { 0 }, entry; 39567331909Sdougm char *mntpt = NULL; 396fa9e4066Sahrens 397fa9e4066Sahrens /* check to see if need to unmount the filesystem */ 3983bb79becSeschrock search.mnt_special = zhp->zfs_name; 39996dedd18Snd search.mnt_fstype = MNTTYPE_ZFS; 40099653d4eSeschrock rewind(zhp->zfs_hdl->libzfs_mnttab); 401fa9e4066Sahrens if (mountpoint != NULL || ((zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) && 40299653d4eSeschrock getmntany(zhp->zfs_hdl->libzfs_mnttab, &entry, &search) == 0)) { 403fa9e4066Sahrens 40467331909Sdougm /* 40567331909Sdougm * mountpoint may have come from a call to 40667331909Sdougm * getmnt/getmntany if it isn't NULL. If it is NULL, 40767331909Sdougm * we know it comes from getmntany which can then get 40867331909Sdougm * overwritten later. We strdup it to play it safe. 40967331909Sdougm */ 410fa9e4066Sahrens if (mountpoint == NULL) 411d8689a57Sdougm mntpt = zfs_strdup(zhp->zfs_hdl, entry.mnt_mountp); 41267331909Sdougm else 413d8689a57Sdougm mntpt = zfs_strdup(zhp->zfs_hdl, mountpoint); 414fa9e4066Sahrens 415fa9e4066Sahrens /* 4163bb79becSeschrock * Unshare and unmount the filesystem 417fa9e4066Sahrens */ 418*da6c28aaSamw if (zfs_unshare_proto(zhp, mntpt, share_all_proto) != 0) 419eb66cf86Sth return (-1); 420eb66cf86Sth 421eb66cf86Sth if (unmount_one(zhp->zfs_hdl, mntpt, flags) != 0) { 42267331909Sdougm free(mntpt); 423*da6c28aaSamw (void) zfs_shareall(zhp); 424fa9e4066Sahrens return (-1); 42567331909Sdougm } 42667331909Sdougm free(mntpt); 427fa9e4066Sahrens } 428fa9e4066Sahrens 429fa9e4066Sahrens return (0); 430fa9e4066Sahrens } 431fa9e4066Sahrens 432fa9e4066Sahrens /* 433fa9e4066Sahrens * Unmount this filesystem and any children inheriting the mountpoint property. 434fa9e4066Sahrens * To do this, just act like we're changing the mountpoint property, but don't 435fa9e4066Sahrens * remount the filesystems afterwards. 436fa9e4066Sahrens */ 437fa9e4066Sahrens int 438fa9e4066Sahrens zfs_unmountall(zfs_handle_t *zhp, int flags) 439fa9e4066Sahrens { 440fa9e4066Sahrens prop_changelist_t *clp; 441fa9e4066Sahrens int ret; 442fa9e4066Sahrens 443fa9e4066Sahrens clp = changelist_gather(zhp, ZFS_PROP_MOUNTPOINT, flags); 444fa9e4066Sahrens if (clp == NULL) 445fa9e4066Sahrens return (-1); 446fa9e4066Sahrens 447fa9e4066Sahrens ret = changelist_prefix(clp); 448fa9e4066Sahrens changelist_free(clp); 449fa9e4066Sahrens 450fa9e4066Sahrens return (ret); 451fa9e4066Sahrens } 452fa9e4066Sahrens 453f3861e1aSahl boolean_t 454f3861e1aSahl zfs_is_shared(zfs_handle_t *zhp) 455f3861e1aSahl { 456*da6c28aaSamw zfs_share_type_t rc = 0; 457*da6c28aaSamw zfs_share_proto_t *curr_proto; 458*da6c28aaSamw 459f3861e1aSahl if (ZFS_IS_VOLUME(zhp)) 460f3861e1aSahl return (zfs_is_shared_iscsi(zhp)); 461f3861e1aSahl 462*da6c28aaSamw for (curr_proto = share_all_proto; *curr_proto != PROTO_END; 463*da6c28aaSamw curr_proto++) 464*da6c28aaSamw rc |= zfs_is_shared_proto(zhp, NULL, *curr_proto); 465*da6c28aaSamw 466*da6c28aaSamw return (rc ? B_TRUE : B_FALSE); 467f3861e1aSahl } 468f3861e1aSahl 469f3861e1aSahl int 470f3861e1aSahl zfs_share(zfs_handle_t *zhp) 471f3861e1aSahl { 472f3861e1aSahl if (ZFS_IS_VOLUME(zhp)) 473f3861e1aSahl return (zfs_share_iscsi(zhp)); 474f3861e1aSahl 475*da6c28aaSamw return (zfs_share_proto(zhp, share_all_proto)); 476f3861e1aSahl } 477f3861e1aSahl 478f3861e1aSahl int 479f3861e1aSahl zfs_unshare(zfs_handle_t *zhp) 480f3861e1aSahl { 481f3861e1aSahl if (ZFS_IS_VOLUME(zhp)) 482f3861e1aSahl return (zfs_unshare_iscsi(zhp)); 483f3861e1aSahl 484*da6c28aaSamw return (zfs_unshareall(zhp)); 485f3861e1aSahl } 486f3861e1aSahl 487fa9e4066Sahrens /* 488fa9e4066Sahrens * Check to see if the filesystem is currently shared. 489fa9e4066Sahrens */ 490*da6c28aaSamw zfs_share_type_t 491*da6c28aaSamw zfs_is_shared_proto(zfs_handle_t *zhp, char **where, zfs_share_proto_t proto) 492fa9e4066Sahrens { 493fa9e4066Sahrens char *mountpoint; 494*da6c28aaSamw zfs_share_type_t rc; 495fa9e4066Sahrens 496fa9e4066Sahrens if (!zfs_is_mounted(zhp, &mountpoint)) 497*da6c28aaSamw return (SHARED_NOT_SHARED); 498fa9e4066Sahrens 499*da6c28aaSamw if (rc = is_shared(zhp->zfs_hdl, mountpoint, proto)) { 500fa9e4066Sahrens if (where != NULL) 501fa9e4066Sahrens *where = mountpoint; 502fa9e4066Sahrens else 503fa9e4066Sahrens free(mountpoint); 504*da6c28aaSamw return (rc); 505fa9e4066Sahrens } else { 506fa9e4066Sahrens free(mountpoint); 507*da6c28aaSamw return (SHARED_NOT_SHARED); 508fa9e4066Sahrens } 509fa9e4066Sahrens } 510fa9e4066Sahrens 511*da6c28aaSamw boolean_t 512*da6c28aaSamw zfs_is_shared_nfs(zfs_handle_t *zhp, char **where) 513*da6c28aaSamw { 514*da6c28aaSamw return (zfs_is_shared_proto(zhp, where, 515*da6c28aaSamw PROTO_NFS) != SHARED_NOT_SHARED); 516*da6c28aaSamw } 517*da6c28aaSamw 518*da6c28aaSamw boolean_t 519*da6c28aaSamw zfs_is_shared_smb(zfs_handle_t *zhp, char **where) 520*da6c28aaSamw { 521*da6c28aaSamw return (zfs_is_shared_proto(zhp, where, 522*da6c28aaSamw PROTO_SMB) != SHARED_NOT_SHARED); 523*da6c28aaSamw } 524*da6c28aaSamw 52567331909Sdougm /* 52667331909Sdougm * Make sure things will work if libshare isn't installed by using 52767331909Sdougm * wrapper functions that check to see that the pointers to functions 52867331909Sdougm * initialized in _zfs_init_libshare() are actually present. 52967331909Sdougm */ 53067331909Sdougm 53167331909Sdougm static sa_handle_t (*_sa_init)(int); 53267331909Sdougm static void (*_sa_fini)(sa_handle_t); 53367331909Sdougm static sa_share_t (*_sa_find_share)(sa_handle_t, char *); 53467331909Sdougm static int (*_sa_enable_share)(sa_share_t, char *); 53567331909Sdougm static int (*_sa_disable_share)(sa_share_t, char *); 53667331909Sdougm static char *(*_sa_errorstr)(int); 53767331909Sdougm static int (*_sa_parse_legacy_options)(sa_group_t, char *, char *); 53867331909Sdougm 53967331909Sdougm /* 54067331909Sdougm * _zfs_init_libshare() 54167331909Sdougm * 54267331909Sdougm * Find the libshare.so.1 entry points that we use here and save the 54367331909Sdougm * values to be used later. This is triggered by the runtime loader. 54467331909Sdougm * Make sure the correct ISA version is loaded. 54567331909Sdougm */ 54667331909Sdougm 54767331909Sdougm #pragma init(_zfs_init_libshare) 54867331909Sdougm static void 54967331909Sdougm _zfs_init_libshare(void) 55067331909Sdougm { 55167331909Sdougm void *libshare; 55267331909Sdougm char path[MAXPATHLEN]; 55367331909Sdougm char isa[MAXISALEN]; 55467331909Sdougm 55567331909Sdougm #if defined(_LP64) 55667331909Sdougm if (sysinfo(SI_ARCHITECTURE_64, isa, MAXISALEN) == -1) 557d8689a57Sdougm isa[0] = '\0'; 55867331909Sdougm #else 55967331909Sdougm isa[0] = '\0'; 56067331909Sdougm #endif 56167331909Sdougm (void) snprintf(path, MAXPATHLEN, 562d8689a57Sdougm "/usr/lib/%s/libshare.so.1", isa); 56367331909Sdougm 56467331909Sdougm if ((libshare = dlopen(path, RTLD_LAZY | RTLD_GLOBAL)) != NULL) { 565d8689a57Sdougm _sa_init = (sa_handle_t (*)(int))dlsym(libshare, "sa_init"); 566d8689a57Sdougm _sa_fini = (void (*)(sa_handle_t))dlsym(libshare, "sa_fini"); 567d8689a57Sdougm _sa_find_share = (sa_share_t (*)(sa_handle_t, char *)) 568d8689a57Sdougm dlsym(libshare, "sa_find_share"); 569d8689a57Sdougm _sa_enable_share = (int (*)(sa_share_t, char *))dlsym(libshare, 570d8689a57Sdougm "sa_enable_share"); 571d8689a57Sdougm _sa_disable_share = (int (*)(sa_share_t, char *))dlsym(libshare, 572d8689a57Sdougm "sa_disable_share"); 573d8689a57Sdougm _sa_errorstr = (char *(*)(int))dlsym(libshare, "sa_errorstr"); 574d8689a57Sdougm _sa_parse_legacy_options = (int (*)(sa_group_t, char *, char *)) 575d8689a57Sdougm dlsym(libshare, "sa_parse_legacy_options"); 57657b448deSdougm if (_sa_init == NULL || _sa_fini == NULL || 57757b448deSdougm _sa_find_share == NULL || _sa_enable_share == NULL || 57857b448deSdougm _sa_disable_share == NULL || _sa_errorstr == NULL || 57957b448deSdougm _sa_parse_legacy_options == NULL) { 58057b448deSdougm _sa_init = NULL; 58157b448deSdougm _sa_fini = NULL; 58257b448deSdougm _sa_disable_share = NULL; 58357b448deSdougm _sa_enable_share = NULL; 58457b448deSdougm _sa_errorstr = NULL; 58557b448deSdougm _sa_parse_legacy_options = NULL; 58657b448deSdougm (void) dlclose(libshare); 58757b448deSdougm } 58867331909Sdougm } 58967331909Sdougm } 59067331909Sdougm 59167331909Sdougm /* 59267331909Sdougm * zfs_init_libshare(zhandle, service) 59367331909Sdougm * 59467331909Sdougm * Initialize the libshare API if it hasn't already been initialized. 59567331909Sdougm * In all cases it returns 0 if it succeeded and an error if not. The 59667331909Sdougm * service value is which part(s) of the API to initialize and is a 59767331909Sdougm * direct map to the libshare sa_init(service) interface. 59867331909Sdougm */ 59967331909Sdougm 60067331909Sdougm int 60167331909Sdougm zfs_init_libshare(libzfs_handle_t *zhandle, int service) 60267331909Sdougm { 60367331909Sdougm int ret = SA_OK; 60467331909Sdougm 605d8689a57Sdougm if (_sa_init == NULL) 606d8689a57Sdougm ret = SA_CONFIG_ERR; 607d8689a57Sdougm 608d8689a57Sdougm if (ret == SA_OK && zhandle && zhandle->libzfs_sharehdl == NULL) 609d8689a57Sdougm zhandle->libzfs_sharehdl = _sa_init(service); 610d8689a57Sdougm 611d8689a57Sdougm if (ret == SA_OK && zhandle->libzfs_sharehdl == NULL) 612d8689a57Sdougm ret = SA_NO_MEMORY; 613d8689a57Sdougm 61467331909Sdougm return (ret); 61567331909Sdougm } 61667331909Sdougm 61767331909Sdougm /* 61867331909Sdougm * zfs_uninit_libshare(zhandle) 61967331909Sdougm * 62067331909Sdougm * Uninitialize the libshare API if it hasn't already been 62167331909Sdougm * uninitialized. It is OK to call multiple times. 62267331909Sdougm */ 62367331909Sdougm 62467331909Sdougm void 62567331909Sdougm zfs_uninit_libshare(libzfs_handle_t *zhandle) 62667331909Sdougm { 62767331909Sdougm 62867331909Sdougm if (zhandle != NULL && zhandle->libzfs_sharehdl != NULL) { 629d8689a57Sdougm if (_sa_fini != NULL) 630d8689a57Sdougm _sa_fini(zhandle->libzfs_sharehdl); 631d8689a57Sdougm zhandle->libzfs_sharehdl = NULL; 63267331909Sdougm } 63367331909Sdougm } 63467331909Sdougm 63567331909Sdougm /* 63667331909Sdougm * zfs_parse_options(options, proto) 63767331909Sdougm * 63867331909Sdougm * Call the legacy parse interface to get the protocol specific 63967331909Sdougm * options using the NULL arg to indicate that this is a "parse" only. 64067331909Sdougm */ 64167331909Sdougm 64267331909Sdougm int 643*da6c28aaSamw zfs_parse_options(char *options, zfs_share_proto_t proto) 64467331909Sdougm { 64567331909Sdougm int ret; 64667331909Sdougm 64767331909Sdougm if (_sa_parse_legacy_options != NULL) 648*da6c28aaSamw ret = _sa_parse_legacy_options(NULL, options, 649*da6c28aaSamw proto_table[proto].p_name); 65067331909Sdougm else 651d8689a57Sdougm ret = SA_CONFIG_ERR; 65267331909Sdougm return (ret); 65367331909Sdougm } 65467331909Sdougm 65567331909Sdougm /* 65667331909Sdougm * zfs_sa_find_share(handle, path) 65767331909Sdougm * 65867331909Sdougm * wrapper around sa_find_share to find a share path in the 65967331909Sdougm * configuration. 66067331909Sdougm */ 66167331909Sdougm 66267331909Sdougm static sa_share_t 66367331909Sdougm zfs_sa_find_share(sa_handle_t handle, char *path) 66467331909Sdougm { 66567331909Sdougm if (_sa_find_share != NULL) 666d8689a57Sdougm return (_sa_find_share(handle, path)); 66767331909Sdougm return (NULL); 66867331909Sdougm } 66967331909Sdougm 67067331909Sdougm /* 67167331909Sdougm * zfs_sa_enable_share(share, proto) 67267331909Sdougm * 67367331909Sdougm * Wrapper for sa_enable_share which enables a share for a specified 67467331909Sdougm * protocol. 67567331909Sdougm */ 67667331909Sdougm 67767331909Sdougm static int 67867331909Sdougm zfs_sa_enable_share(sa_share_t share, char *proto) 67967331909Sdougm { 68067331909Sdougm if (_sa_enable_share != NULL) 681d8689a57Sdougm return (_sa_enable_share(share, proto)); 68267331909Sdougm return (SA_CONFIG_ERR); 68367331909Sdougm } 68467331909Sdougm 68567331909Sdougm /* 68667331909Sdougm * zfs_sa_disable_share(share, proto) 68767331909Sdougm * 68867331909Sdougm * Wrapper for sa_enable_share which disables a share for a specified 68967331909Sdougm * protocol. 69067331909Sdougm */ 69167331909Sdougm 69267331909Sdougm static int 69367331909Sdougm zfs_sa_disable_share(sa_share_t share, char *proto) 69467331909Sdougm { 69567331909Sdougm if (_sa_disable_share != NULL) 696d8689a57Sdougm return (_sa_disable_share(share, proto)); 69767331909Sdougm return (SA_CONFIG_ERR); 69867331909Sdougm } 69967331909Sdougm 700fa9e4066Sahrens /* 701*da6c28aaSamw * Share the given filesystem according to the options in the specified 702*da6c28aaSamw * protocol specific properties (sharenfs, sharesmb). We rely 70367331909Sdougm * on "libshare" to the dirty work for us. 704fa9e4066Sahrens */ 70567331909Sdougm 706*da6c28aaSamw static int 707*da6c28aaSamw zfs_share_proto(zfs_handle_t *zhp, zfs_share_proto_t *proto) 708fa9e4066Sahrens { 709fa9e4066Sahrens char mountpoint[ZFS_MAXPROPLEN]; 710fa9e4066Sahrens char shareopts[ZFS_MAXPROPLEN]; 71199653d4eSeschrock libzfs_handle_t *hdl = zhp->zfs_hdl; 71267331909Sdougm sa_share_t share; 713*da6c28aaSamw zfs_share_proto_t *curr_proto; 71467331909Sdougm int ret; 715fa9e4066Sahrens 716e9dbad6fSeschrock if (!zfs_is_mountable(zhp, mountpoint, sizeof (mountpoint), NULL)) 717fa9e4066Sahrens return (0); 718fa9e4066Sahrens 71967331909Sdougm if ((ret = zfs_init_libshare(hdl, SA_INIT_SHARE_API)) != SA_OK) { 720d8689a57Sdougm (void) zfs_error_fmt(hdl, EZFS_SHARENFSFAILED, 721d8689a57Sdougm dgettext(TEXT_DOMAIN, "cannot share '%s': %s"), 722d8689a57Sdougm zfs_get_name(zhp), _sa_errorstr(ret)); 723d8689a57Sdougm return (-1); 72467331909Sdougm } 725*da6c28aaSamw 726*da6c28aaSamw for (curr_proto = proto; *curr_proto != PROTO_END; curr_proto++) { 727*da6c28aaSamw /* 728*da6c28aaSamw * Return success if there are no share options. 729*da6c28aaSamw */ 730*da6c28aaSamw if (zfs_prop_get(zhp, proto_table[*curr_proto].p_prop, 731*da6c28aaSamw shareopts, sizeof (shareopts), NULL, NULL, 732*da6c28aaSamw 0, B_FALSE) != 0 || strcmp(shareopts, "off") == 0) 733*da6c28aaSamw continue; 734*da6c28aaSamw 735*da6c28aaSamw /* 736*da6c28aaSamw * If the 'zoned' property is set, then zfs_is_mountable() 737*da6c28aaSamw * will have already bailed out if we are in the global zone. 738*da6c28aaSamw * But local zones cannot be NFS servers, so we ignore it for 739*da6c28aaSamw * local zones as well. 740*da6c28aaSamw */ 741*da6c28aaSamw if (zfs_prop_get_int(zhp, ZFS_PROP_ZONED)) 742*da6c28aaSamw continue; 743*da6c28aaSamw 744*da6c28aaSamw share = zfs_sa_find_share(hdl->libzfs_sharehdl, mountpoint); 745*da6c28aaSamw if (share != NULL) { 746*da6c28aaSamw int err; 747*da6c28aaSamw err = zfs_sa_enable_share(share, 748*da6c28aaSamw proto_table[*curr_proto].p_name); 749*da6c28aaSamw if (err != SA_OK) { 750*da6c28aaSamw (void) zfs_error_fmt(hdl, 751*da6c28aaSamw proto_table[*curr_proto].p_share_err, 752*da6c28aaSamw dgettext(TEXT_DOMAIN, "cannot share '%s'"), 753*da6c28aaSamw zfs_get_name(zhp)); 754*da6c28aaSamw return (-1); 755*da6c28aaSamw } 756*da6c28aaSamw } else { 757*da6c28aaSamw (void) zfs_error_fmt(hdl, 758*da6c28aaSamw proto_table[*curr_proto].p_share_err, 759d8689a57Sdougm dgettext(TEXT_DOMAIN, "cannot share '%s'"), 760d8689a57Sdougm zfs_get_name(zhp)); 761d8689a57Sdougm return (-1); 762d8689a57Sdougm } 763fa9e4066Sahrens 764*da6c28aaSamw } 765fa9e4066Sahrens return (0); 766fa9e4066Sahrens } 767fa9e4066Sahrens 768*da6c28aaSamw 769*da6c28aaSamw int 770*da6c28aaSamw zfs_share_nfs(zfs_handle_t *zhp) 771*da6c28aaSamw { 772*da6c28aaSamw return (zfs_share_proto(zhp, nfs_only)); 773*da6c28aaSamw } 774*da6c28aaSamw 775*da6c28aaSamw int 776*da6c28aaSamw zfs_share_smb(zfs_handle_t *zhp) 777*da6c28aaSamw { 778*da6c28aaSamw return (zfs_share_proto(zhp, smb_only)); 779*da6c28aaSamw } 780*da6c28aaSamw 781*da6c28aaSamw int 782*da6c28aaSamw zfs_shareall(zfs_handle_t *zhp) 783*da6c28aaSamw { 784*da6c28aaSamw return (zfs_share_proto(zhp, share_all_proto)); 785*da6c28aaSamw } 786*da6c28aaSamw 7873bb79becSeschrock /* 7883bb79becSeschrock * Unshare a filesystem by mountpoint. 7893bb79becSeschrock */ 7903bb79becSeschrock static int 791*da6c28aaSamw unshare_one(libzfs_handle_t *hdl, const char *name, const char *mountpoint, 792*da6c28aaSamw zfs_share_proto_t proto) 7933bb79becSeschrock { 79467331909Sdougm sa_share_t share; 79567331909Sdougm int err; 79667331909Sdougm char *mntpt; 7973bb79becSeschrock /* 79867331909Sdougm * Mountpoint could get trashed if libshare calls getmntany 79967331909Sdougm * which id does during API initialization, so strdup the 80067331909Sdougm * value. 8013bb79becSeschrock */ 80267331909Sdougm mntpt = zfs_strdup(hdl, mountpoint); 8033bb79becSeschrock 80467331909Sdougm /* make sure libshare initialized */ 80567331909Sdougm if ((err = zfs_init_libshare(hdl, SA_INIT_SHARE_API)) != SA_OK) { 80667331909Sdougm free(mntpt); /* don't need the copy anymore */ 80767331909Sdougm return (zfs_error_fmt(hdl, EZFS_SHARENFSFAILED, 808d8689a57Sdougm dgettext(TEXT_DOMAIN, "cannot unshare '%s': %s"), 809d8689a57Sdougm name, _sa_errorstr(err))); 81067331909Sdougm } 8113bb79becSeschrock 81267331909Sdougm share = zfs_sa_find_share(hdl->libzfs_sharehdl, mntpt); 81367331909Sdougm free(mntpt); /* don't need the copy anymore */ 8143bb79becSeschrock 81567331909Sdougm if (share != NULL) { 816*da6c28aaSamw err = zfs_sa_disable_share(share, proto_table[proto].p_name); 81767331909Sdougm if (err != SA_OK) { 818d8689a57Sdougm return (zfs_error_fmt(hdl, EZFS_UNSHARENFSFAILED, 819d8689a57Sdougm dgettext(TEXT_DOMAIN, "cannot unshare '%s': %s"), 820d8689a57Sdougm name, _sa_errorstr(err))); 82167331909Sdougm } 82267331909Sdougm } else { 823ece3d9b3Slling return (zfs_error_fmt(hdl, EZFS_UNSHARENFSFAILED, 824d8689a57Sdougm dgettext(TEXT_DOMAIN, "cannot unshare '%s': not found"), 825d8689a57Sdougm name)); 8263bb79becSeschrock } 8273bb79becSeschrock return (0); 8283bb79becSeschrock } 8293bb79becSeschrock 830fa9e4066Sahrens /* 831fa9e4066Sahrens * Unshare the given filesystem. 832fa9e4066Sahrens */ 833fa9e4066Sahrens int 834*da6c28aaSamw zfs_unshare_proto(zfs_handle_t *zhp, const char *mountpoint, 835*da6c28aaSamw zfs_share_proto_t *proto) 836fa9e4066Sahrens { 837fa9e4066Sahrens struct mnttab search = { 0 }, entry; 83867331909Sdougm char *mntpt = NULL; 839fa9e4066Sahrens 840fa9e4066Sahrens /* check to see if need to unmount the filesystem */ 841fa9e4066Sahrens search.mnt_special = (char *)zfs_get_name(zhp); 84296dedd18Snd search.mnt_fstype = MNTTYPE_ZFS; 84399653d4eSeschrock rewind(zhp->zfs_hdl->libzfs_mnttab); 844d8689a57Sdougm if (mountpoint != NULL) 845*da6c28aaSamw mntpt = zfs_strdup(zhp->zfs_hdl, mountpoint); 846d8689a57Sdougm 847fa9e4066Sahrens if (mountpoint != NULL || ((zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) && 84899653d4eSeschrock getmntany(zhp->zfs_hdl->libzfs_mnttab, &entry, &search) == 0)) { 849*da6c28aaSamw zfs_share_proto_t *curr_proto; 850fa9e4066Sahrens 851fa9e4066Sahrens if (mountpoint == NULL) 852*da6c28aaSamw mntpt = zfs_strdup(zhp->zfs_hdl, entry.mnt_mountp); 853fa9e4066Sahrens 854*da6c28aaSamw for (curr_proto = proto; *curr_proto != PROTO_END; 855*da6c28aaSamw curr_proto++) { 856*da6c28aaSamw 857*da6c28aaSamw if (is_shared(zhp->zfs_hdl, mntpt, *curr_proto) && 858*da6c28aaSamw unshare_one(zhp->zfs_hdl, zhp->zfs_name, 859*da6c28aaSamw mntpt, *curr_proto) != 0) { 860*da6c28aaSamw if (mntpt != NULL) 861*da6c28aaSamw free(mntpt); 862*da6c28aaSamw return (-1); 863*da6c28aaSamw } 86467331909Sdougm } 865fa9e4066Sahrens } 86667331909Sdougm if (mntpt != NULL) 867d8689a57Sdougm free(mntpt); 868fa9e4066Sahrens 869fa9e4066Sahrens return (0); 870fa9e4066Sahrens } 871fa9e4066Sahrens 872*da6c28aaSamw int 873*da6c28aaSamw zfs_unshare_nfs(zfs_handle_t *zhp, const char *mountpoint) 874*da6c28aaSamw { 875*da6c28aaSamw return (zfs_unshare_proto(zhp, mountpoint, nfs_only)); 876*da6c28aaSamw } 877*da6c28aaSamw 878*da6c28aaSamw int 879*da6c28aaSamw zfs_unshare_smb(zfs_handle_t *zhp, const char *mountpoint) 880*da6c28aaSamw { 881*da6c28aaSamw return (zfs_unshare_proto(zhp, mountpoint, smb_only)); 882*da6c28aaSamw } 883*da6c28aaSamw 884fa9e4066Sahrens /* 885*da6c28aaSamw * Same as zfs_unmountall(), but for NFS and SMB unshares. 886fa9e4066Sahrens */ 887fa9e4066Sahrens int 888*da6c28aaSamw zfs_unshareall_proto(zfs_handle_t *zhp, zfs_share_proto_t *proto) 889fa9e4066Sahrens { 890fa9e4066Sahrens prop_changelist_t *clp; 891fa9e4066Sahrens int ret; 892fa9e4066Sahrens 893fa9e4066Sahrens clp = changelist_gather(zhp, ZFS_PROP_SHARENFS, 0); 894fa9e4066Sahrens if (clp == NULL) 895fa9e4066Sahrens return (-1); 896fa9e4066Sahrens 897*da6c28aaSamw ret = changelist_unshare(clp, proto); 898fa9e4066Sahrens changelist_free(clp); 899fa9e4066Sahrens 900fa9e4066Sahrens return (ret); 901fa9e4066Sahrens } 902fa9e4066Sahrens 903*da6c28aaSamw int 904*da6c28aaSamw zfs_unshareall_nfs(zfs_handle_t *zhp) 905*da6c28aaSamw { 906*da6c28aaSamw return (zfs_unshareall_proto(zhp, nfs_only)); 907*da6c28aaSamw } 908*da6c28aaSamw 909*da6c28aaSamw int 910*da6c28aaSamw zfs_unshareall_smb(zfs_handle_t *zhp) 911*da6c28aaSamw { 912*da6c28aaSamw return (zfs_unshareall_proto(zhp, smb_only)); 913*da6c28aaSamw } 914*da6c28aaSamw 915*da6c28aaSamw int 916*da6c28aaSamw zfs_unshareall(zfs_handle_t *zhp) 917*da6c28aaSamw { 918*da6c28aaSamw return (zfs_unshareall_proto(zhp, share_all_proto)); 919*da6c28aaSamw } 920*da6c28aaSamw 921*da6c28aaSamw int 922*da6c28aaSamw zfs_unshareall_bypath(zfs_handle_t *zhp, const char *mountpoint) 923*da6c28aaSamw { 924*da6c28aaSamw return (zfs_unshare_proto(zhp, mountpoint, share_all_proto)); 925*da6c28aaSamw } 926*da6c28aaSamw 927fa9e4066Sahrens /* 928fa9e4066Sahrens * Remove the mountpoint associated with the current dataset, if necessary. 929fa9e4066Sahrens * We only remove the underlying directory if: 930fa9e4066Sahrens * 931fa9e4066Sahrens * - The mountpoint is not 'none' or 'legacy' 932fa9e4066Sahrens * - The mountpoint is non-empty 933fa9e4066Sahrens * - The mountpoint is the default or inherited 934fa9e4066Sahrens * - The 'zoned' property is set, or we're in a local zone 935fa9e4066Sahrens * 936fa9e4066Sahrens * Any other directories we leave alone. 937fa9e4066Sahrens */ 938fa9e4066Sahrens void 939fa9e4066Sahrens remove_mountpoint(zfs_handle_t *zhp) 940fa9e4066Sahrens { 941fa9e4066Sahrens char mountpoint[ZFS_MAXPROPLEN]; 942990b4856Slling zprop_source_t source; 943fa9e4066Sahrens 944e9dbad6fSeschrock if (!zfs_is_mountable(zhp, mountpoint, sizeof (mountpoint), 945e9dbad6fSeschrock &source)) 946fa9e4066Sahrens return; 947fa9e4066Sahrens 948990b4856Slling if (source == ZPROP_SRC_DEFAULT || 949990b4856Slling source == ZPROP_SRC_INHERITED) { 950fa9e4066Sahrens /* 951fa9e4066Sahrens * Try to remove the directory, silently ignoring any errors. 952fa9e4066Sahrens * The filesystem may have since been removed or moved around, 953e9dbad6fSeschrock * and this error isn't really useful to the administrator in 954e9dbad6fSeschrock * any way. 955fa9e4066Sahrens */ 956fa9e4066Sahrens (void) rmdir(mountpoint); 957fa9e4066Sahrens } 958fa9e4066Sahrens } 9593bb79becSeschrock 960f3861e1aSahl boolean_t 961f3861e1aSahl zfs_is_shared_iscsi(zfs_handle_t *zhp) 962f3861e1aSahl { 963ecd6cf80Smarks 964ecd6cf80Smarks /* 965ecd6cf80Smarks * If iscsi deamon isn't running then we aren't shared 966ecd6cf80Smarks */ 967ecd6cf80Smarks if (iscsitgt_svc_online && iscsitgt_svc_online() == 1) 968*da6c28aaSamw return (B_FALSE); 969ecd6cf80Smarks else 970ecd6cf80Smarks return (iscsitgt_zfs_is_shared != NULL && 971ecd6cf80Smarks iscsitgt_zfs_is_shared(zhp->zfs_name) != 0); 972f3861e1aSahl } 973f3861e1aSahl 974f3861e1aSahl int 975f3861e1aSahl zfs_share_iscsi(zfs_handle_t *zhp) 976f3861e1aSahl { 977f3861e1aSahl char shareopts[ZFS_MAXPROPLEN]; 978f3861e1aSahl const char *dataset = zhp->zfs_name; 979f3861e1aSahl libzfs_handle_t *hdl = zhp->zfs_hdl; 980f3861e1aSahl 981f3861e1aSahl /* 982f3861e1aSahl * Return success if there are no share options. 983f3861e1aSahl */ 984f3861e1aSahl if (zfs_prop_get(zhp, ZFS_PROP_SHAREISCSI, shareopts, 985f3861e1aSahl sizeof (shareopts), NULL, NULL, 0, B_FALSE) != 0 || 986f3861e1aSahl strcmp(shareopts, "off") == 0) 987f3861e1aSahl return (0); 988f3861e1aSahl 989ecd6cf80Smarks if (iscsitgt_zfs_share == NULL || iscsitgt_zfs_share(dataset) != 0) { 990ecd6cf80Smarks int error = EZFS_SHAREISCSIFAILED; 991ecd6cf80Smarks 992ecd6cf80Smarks /* 993ecd6cf80Smarks * If service isn't availabele and EPERM was 994ecd6cf80Smarks * returned then use special error. 995ecd6cf80Smarks */ 996ecd6cf80Smarks if (iscsitgt_svc_online && errno == EPERM && 997ecd6cf80Smarks (iscsitgt_svc_online() != 0)) 998ecd6cf80Smarks error = EZFS_ISCSISVCUNAVAIL; 999ecd6cf80Smarks 1000ecd6cf80Smarks return (zfs_error_fmt(hdl, error, 1001f3861e1aSahl dgettext(TEXT_DOMAIN, "cannot share '%s'"), dataset)); 1002ecd6cf80Smarks } 1003f3861e1aSahl 1004f3861e1aSahl return (0); 1005f3861e1aSahl } 1006f3861e1aSahl 1007f3861e1aSahl int 1008f3861e1aSahl zfs_unshare_iscsi(zfs_handle_t *zhp) 1009f3861e1aSahl { 1010f3861e1aSahl const char *dataset = zfs_get_name(zhp); 1011f3861e1aSahl libzfs_handle_t *hdl = zhp->zfs_hdl; 1012f3861e1aSahl 101311d2789dSgw /* 101411d2789dSgw * Return if the volume is not shared 101511d2789dSgw */ 1016*da6c28aaSamw if (zfs_is_shared_iscsi(zhp) != SHARED_ISCSI) 101711d2789dSgw return (0); 101811d2789dSgw 1019f3861e1aSahl /* 1020f3861e1aSahl * If this fails with ENODEV it indicates that zvol wasn't shared so 1021f3861e1aSahl * we should return success in that case. 1022f3861e1aSahl */ 1023d8d59944Sahl if (iscsitgt_zfs_unshare == NULL || 1024ecd6cf80Smarks (iscsitgt_zfs_unshare(dataset) != 0 && errno != ENODEV)) { 1025ecd6cf80Smarks if (errno == EPERM) 1026ecd6cf80Smarks zfs_error_aux(hdl, dgettext(TEXT_DOMAIN, 1027ecd6cf80Smarks "Insufficient privileges to unshare iscsi")); 1028ece3d9b3Slling return (zfs_error_fmt(hdl, EZFS_UNSHAREISCSIFAILED, 1029f3861e1aSahl dgettext(TEXT_DOMAIN, "cannot unshare '%s'"), dataset)); 1030ecd6cf80Smarks } 1031f3861e1aSahl 1032f3861e1aSahl return (0); 1033f3861e1aSahl } 1034f3861e1aSahl 10353bb79becSeschrock typedef struct mount_cbdata { 10363bb79becSeschrock zfs_handle_t **cb_datasets; 10373bb79becSeschrock int cb_used; 10383bb79becSeschrock int cb_alloc; 10393bb79becSeschrock } mount_cbdata_t; 10403bb79becSeschrock 10413bb79becSeschrock static int 10423bb79becSeschrock mount_cb(zfs_handle_t *zhp, void *data) 10433bb79becSeschrock { 10443bb79becSeschrock mount_cbdata_t *cbp = data; 10453bb79becSeschrock 1046f3861e1aSahl if (!(zfs_get_type(zhp) & (ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME))) { 10473bb79becSeschrock zfs_close(zhp); 10483bb79becSeschrock return (0); 10493bb79becSeschrock } 10503bb79becSeschrock 10513bb79becSeschrock if (cbp->cb_alloc == cbp->cb_used) { 1052e9dbad6fSeschrock void *ptr; 10533bb79becSeschrock 1054e9dbad6fSeschrock if ((ptr = zfs_realloc(zhp->zfs_hdl, 1055e9dbad6fSeschrock cbp->cb_datasets, cbp->cb_alloc * sizeof (void *), 1056e9dbad6fSeschrock cbp->cb_alloc * 2 * sizeof (void *))) == NULL) 10573bb79becSeschrock return (-1); 1058e9dbad6fSeschrock cbp->cb_datasets = ptr; 10593bb79becSeschrock 1060e9dbad6fSeschrock cbp->cb_alloc *= 2; 10613bb79becSeschrock } 10623bb79becSeschrock 10633bb79becSeschrock cbp->cb_datasets[cbp->cb_used++] = zhp; 1064f3861e1aSahl 1065f3861e1aSahl return (zfs_iter_children(zhp, mount_cb, cbp)); 10663bb79becSeschrock } 10673bb79becSeschrock 10683bb79becSeschrock static int 1069f3861e1aSahl dataset_cmp(const void *a, const void *b) 10703bb79becSeschrock { 10713bb79becSeschrock zfs_handle_t **za = (zfs_handle_t **)a; 10723bb79becSeschrock zfs_handle_t **zb = (zfs_handle_t **)b; 10733bb79becSeschrock char mounta[MAXPATHLEN]; 10743bb79becSeschrock char mountb[MAXPATHLEN]; 1075f3861e1aSahl boolean_t gota, gotb; 1076f3861e1aSahl 1077f3861e1aSahl if ((gota = (zfs_get_type(*za) == ZFS_TYPE_FILESYSTEM)) != 0) 1078f3861e1aSahl verify(zfs_prop_get(*za, ZFS_PROP_MOUNTPOINT, mounta, 1079f3861e1aSahl sizeof (mounta), NULL, NULL, 0, B_FALSE) == 0); 1080f3861e1aSahl if ((gotb = (zfs_get_type(*zb) == ZFS_TYPE_FILESYSTEM)) != 0) 1081f3861e1aSahl verify(zfs_prop_get(*zb, ZFS_PROP_MOUNTPOINT, mountb, 1082f3861e1aSahl sizeof (mountb), NULL, NULL, 0, B_FALSE) == 0); 1083f3861e1aSahl 1084f3861e1aSahl if (gota && gotb) 1085f3861e1aSahl return (strcmp(mounta, mountb)); 10863bb79becSeschrock 1087f3861e1aSahl if (gota) 1088f3861e1aSahl return (-1); 1089f3861e1aSahl if (gotb) 1090f3861e1aSahl return (1); 10913bb79becSeschrock 1092f3861e1aSahl return (strcmp(zfs_get_name(a), zfs_get_name(b))); 10933bb79becSeschrock } 10943bb79becSeschrock 1095f3861e1aSahl /* 1096f3861e1aSahl * Mount and share all datasets within the given pool. This assumes that no 1097f3861e1aSahl * datasets within the pool are currently mounted. Because users can create 1098f3861e1aSahl * complicated nested hierarchies of mountpoints, we first gather all the 1099f3861e1aSahl * datasets and mountpoints within the pool, and sort them by mountpoint. Once 1100f3861e1aSahl * we have the list of all filesystems, we iterate over them in order and mount 1101f3861e1aSahl * and/or share each one. 1102f3861e1aSahl */ 1103f3861e1aSahl #pragma weak zpool_mount_datasets = zpool_enable_datasets 11043bb79becSeschrock int 1105f3861e1aSahl zpool_enable_datasets(zpool_handle_t *zhp, const char *mntopts, int flags) 11063bb79becSeschrock { 11073bb79becSeschrock mount_cbdata_t cb = { 0 }; 11083bb79becSeschrock libzfs_handle_t *hdl = zhp->zpool_hdl; 11093bb79becSeschrock zfs_handle_t *zfsp; 11103bb79becSeschrock int i, ret = -1; 111167331909Sdougm int *good; 11123bb79becSeschrock 11133bb79becSeschrock /* 11143bb79becSeschrock * Gather all datasets within the pool. 11153bb79becSeschrock */ 11163bb79becSeschrock if ((cb.cb_datasets = zfs_alloc(hdl, 4 * sizeof (void *))) == NULL) 11173bb79becSeschrock return (-1); 11183bb79becSeschrock cb.cb_alloc = 4; 11193bb79becSeschrock 1120990b4856Slling if ((zfsp = zfs_open(hdl, zhp->zpool_name, ZFS_TYPE_DATASET)) == NULL) 11213bb79becSeschrock goto out; 11223bb79becSeschrock 11233bb79becSeschrock cb.cb_datasets[0] = zfsp; 11243bb79becSeschrock cb.cb_used = 1; 11253bb79becSeschrock 11263bb79becSeschrock if (zfs_iter_children(zfsp, mount_cb, &cb) != 0) 11273bb79becSeschrock goto out; 11283bb79becSeschrock 11293bb79becSeschrock /* 11303bb79becSeschrock * Sort the datasets by mountpoint. 11313bb79becSeschrock */ 1132f3861e1aSahl qsort(cb.cb_datasets, cb.cb_used, sizeof (void *), dataset_cmp); 11333bb79becSeschrock 11343bb79becSeschrock /* 113567331909Sdougm * And mount all the datasets, keeping track of which ones 113667331909Sdougm * succeeded or failed. By using zfs_alloc(), the good pointer 113767331909Sdougm * will always be non-NULL. 11383bb79becSeschrock */ 113967331909Sdougm good = zfs_alloc(zhp->zpool_hdl, cb.cb_used * sizeof (int)); 11403bb79becSeschrock ret = 0; 11413bb79becSeschrock for (i = 0; i < cb.cb_used; i++) { 1142d8689a57Sdougm if (zfs_mount(cb.cb_datasets[i], mntopts, flags) != 0) 11433bb79becSeschrock ret = -1; 1144d8689a57Sdougm else 114567331909Sdougm good[i] = 1; 11463bb79becSeschrock } 114767331909Sdougm /* 114867331909Sdougm * Then share all the ones that need to be shared. This needs 114967331909Sdougm * to be a separate pass in order to avoid excessive reloading 115067331909Sdougm * of the configuration. Good should never be NULL since 115167331909Sdougm * zfs_alloc is supposed to exit if memory isn't available. 115267331909Sdougm */ 115367331909Sdougm zfs_uninit_libshare(hdl); 115467331909Sdougm for (i = 0; i < cb.cb_used; i++) { 115567331909Sdougm if (good[i] && zfs_share(cb.cb_datasets[i]) != 0) 115667331909Sdougm ret = -1; 115767331909Sdougm } 115867331909Sdougm 115967331909Sdougm free(good); 11603bb79becSeschrock 11613bb79becSeschrock out: 11623bb79becSeschrock for (i = 0; i < cb.cb_used; i++) 11633bb79becSeschrock zfs_close(cb.cb_datasets[i]); 11643bb79becSeschrock free(cb.cb_datasets); 11653bb79becSeschrock 11663bb79becSeschrock return (ret); 11673bb79becSeschrock } 11683bb79becSeschrock 1169f3861e1aSahl 1170f3861e1aSahl static int 1171f3861e1aSahl zvol_cb(const char *dataset, void *data) 1172f3861e1aSahl { 1173f3861e1aSahl libzfs_handle_t *hdl = data; 1174f3861e1aSahl zfs_handle_t *zhp; 1175f3861e1aSahl 1176f3861e1aSahl /* 1177f3861e1aSahl * Ignore snapshots and ignore failures from non-existant datasets. 1178f3861e1aSahl */ 1179f3861e1aSahl if (strchr(dataset, '@') != NULL || 1180f3861e1aSahl (zhp = zfs_open(hdl, dataset, ZFS_TYPE_VOLUME)) == NULL) 1181f3861e1aSahl return (0); 1182f3861e1aSahl 1183ecd6cf80Smarks if (zfs_unshare_iscsi(zhp) != 0) 1184ecd6cf80Smarks return (-1); 1185f3861e1aSahl 1186f3861e1aSahl zfs_close(zhp); 1187f3861e1aSahl 1188f3861e1aSahl return (0); 1189f3861e1aSahl } 1190f3861e1aSahl 11913bb79becSeschrock static int 11923bb79becSeschrock mountpoint_compare(const void *a, const void *b) 11933bb79becSeschrock { 11943bb79becSeschrock const char *mounta = *((char **)a); 11953bb79becSeschrock const char *mountb = *((char **)b); 11963bb79becSeschrock 11973bb79becSeschrock return (strcmp(mountb, mounta)); 11983bb79becSeschrock } 11993bb79becSeschrock 1200f3861e1aSahl /* 1201f3861e1aSahl * Unshare and unmount all datasets within the given pool. We don't want to 1202f3861e1aSahl * rely on traversing the DSL to discover the filesystems within the pool, 1203f3861e1aSahl * because this may be expensive (if not all of them are mounted), and can fail 1204f3861e1aSahl * arbitrarily (on I/O error, for example). Instead, we walk /etc/mnttab and 1205f3861e1aSahl * gather all the filesystems that are currently mounted. 1206f3861e1aSahl */ 1207f3861e1aSahl #pragma weak zpool_unmount_datasets = zpool_disable_datasets 12083bb79becSeschrock int 1209f3861e1aSahl zpool_disable_datasets(zpool_handle_t *zhp, boolean_t force) 12103bb79becSeschrock { 12113bb79becSeschrock int used, alloc; 12123bb79becSeschrock struct mnttab entry; 12133bb79becSeschrock size_t namelen; 12143bb79becSeschrock char **mountpoints = NULL; 12153bb79becSeschrock zfs_handle_t **datasets = NULL; 12163bb79becSeschrock libzfs_handle_t *hdl = zhp->zpool_hdl; 12173bb79becSeschrock int i; 12183bb79becSeschrock int ret = -1; 12193bb79becSeschrock int flags = (force ? MS_FORCE : 0); 12203bb79becSeschrock 1221f3861e1aSahl /* 1222f3861e1aSahl * First unshare all zvols. 1223f3861e1aSahl */ 1224f3861e1aSahl if (zpool_iter_zvol(zhp, zvol_cb, hdl) != 0) 1225f3861e1aSahl return (-1); 1226f3861e1aSahl 12273bb79becSeschrock namelen = strlen(zhp->zpool_name); 12283bb79becSeschrock 12293bb79becSeschrock rewind(hdl->libzfs_mnttab); 12303bb79becSeschrock used = alloc = 0; 12313bb79becSeschrock while (getmntent(hdl->libzfs_mnttab, &entry) == 0) { 12323bb79becSeschrock /* 12333bb79becSeschrock * Ignore non-ZFS entries. 12343bb79becSeschrock */ 12353bb79becSeschrock if (entry.mnt_fstype == NULL || 12363bb79becSeschrock strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 12373bb79becSeschrock continue; 12383bb79becSeschrock 12393bb79becSeschrock /* 12403bb79becSeschrock * Ignore filesystems not within this pool. 12413bb79becSeschrock */ 12423bb79becSeschrock if (entry.mnt_mountp == NULL || 12433bb79becSeschrock strncmp(entry.mnt_special, zhp->zpool_name, namelen) != 0 || 12443bb79becSeschrock (entry.mnt_special[namelen] != '/' && 12453bb79becSeschrock entry.mnt_special[namelen] != '\0')) 12463bb79becSeschrock continue; 12473bb79becSeschrock 12483bb79becSeschrock /* 12493bb79becSeschrock * At this point we've found a filesystem within our pool. Add 12503bb79becSeschrock * it to our growing list. 12513bb79becSeschrock */ 12523bb79becSeschrock if (used == alloc) { 12533bb79becSeschrock if (alloc == 0) { 12543bb79becSeschrock if ((mountpoints = zfs_alloc(hdl, 12553bb79becSeschrock 8 * sizeof (void *))) == NULL) 12563bb79becSeschrock goto out; 12573bb79becSeschrock 12583bb79becSeschrock if ((datasets = zfs_alloc(hdl, 12593bb79becSeschrock 8 * sizeof (void *))) == NULL) 12603bb79becSeschrock goto out; 12613bb79becSeschrock 12623bb79becSeschrock alloc = 8; 12633bb79becSeschrock } else { 1264e9dbad6fSeschrock void *ptr; 12653bb79becSeschrock 1266e9dbad6fSeschrock if ((ptr = zfs_realloc(hdl, mountpoints, 1267e9dbad6fSeschrock alloc * sizeof (void *), 12683bb79becSeschrock alloc * 2 * sizeof (void *))) == NULL) 12693bb79becSeschrock goto out; 1270e9dbad6fSeschrock mountpoints = ptr; 12713bb79becSeschrock 1272e9dbad6fSeschrock if ((ptr = zfs_realloc(hdl, datasets, 1273e9dbad6fSeschrock alloc * sizeof (void *), 12743bb79becSeschrock alloc * 2 * sizeof (void *))) == NULL) 12753bb79becSeschrock goto out; 1276e9dbad6fSeschrock datasets = ptr; 12773bb79becSeschrock 12783bb79becSeschrock alloc *= 2; 12793bb79becSeschrock } 12803bb79becSeschrock } 12813bb79becSeschrock 12823bb79becSeschrock if ((mountpoints[used] = zfs_strdup(hdl, 12833bb79becSeschrock entry.mnt_mountp)) == NULL) 12843bb79becSeschrock goto out; 12853bb79becSeschrock 12863bb79becSeschrock /* 12873bb79becSeschrock * This is allowed to fail, in case there is some I/O error. It 12883bb79becSeschrock * is only used to determine if we need to remove the underlying 12893bb79becSeschrock * mountpoint, so failure is not fatal. 12903bb79becSeschrock */ 12913bb79becSeschrock datasets[used] = make_dataset_handle(hdl, entry.mnt_special); 12923bb79becSeschrock 12933bb79becSeschrock used++; 12943bb79becSeschrock } 12953bb79becSeschrock 12963bb79becSeschrock /* 12973bb79becSeschrock * At this point, we have the entire list of filesystems, so sort it by 12983bb79becSeschrock * mountpoint. 12993bb79becSeschrock */ 13003bb79becSeschrock qsort(mountpoints, used, sizeof (char *), mountpoint_compare); 13013bb79becSeschrock 13023bb79becSeschrock /* 13033bb79becSeschrock * Walk through and first unshare everything. 13043bb79becSeschrock */ 13053bb79becSeschrock for (i = 0; i < used; i++) { 1306*da6c28aaSamw zfs_share_proto_t *curr_proto; 1307*da6c28aaSamw for (curr_proto = share_all_proto; *curr_proto != PROTO_END; 1308*da6c28aaSamw curr_proto++) { 1309*da6c28aaSamw if (is_shared(hdl, mountpoints[i], *curr_proto) && 1310*da6c28aaSamw unshare_one(hdl, mountpoints[i], 1311*da6c28aaSamw mountpoints[i], *curr_proto) != 0) 1312*da6c28aaSamw goto out; 1313*da6c28aaSamw } 13143bb79becSeschrock } 13153bb79becSeschrock 13163bb79becSeschrock /* 13173bb79becSeschrock * Now unmount everything, removing the underlying directories as 13183bb79becSeschrock * appropriate. 13193bb79becSeschrock */ 13203bb79becSeschrock for (i = 0; i < used; i++) { 13213bb79becSeschrock if (unmount_one(hdl, mountpoints[i], flags) != 0) 13223bb79becSeschrock goto out; 1323e9dbad6fSeschrock } 13243bb79becSeschrock 1325e9dbad6fSeschrock for (i = 0; i < used; i++) { 13263bb79becSeschrock if (datasets[i]) 13273bb79becSeschrock remove_mountpoint(datasets[i]); 13283bb79becSeschrock } 13293bb79becSeschrock 13303bb79becSeschrock ret = 0; 13313bb79becSeschrock out: 13323bb79becSeschrock for (i = 0; i < used; i++) { 13333bb79becSeschrock if (datasets[i]) 13343bb79becSeschrock zfs_close(datasets[i]); 13353bb79becSeschrock free(mountpoints[i]); 13363bb79becSeschrock } 13373bb79becSeschrock free(datasets); 13383bb79becSeschrock free(mountpoints); 13393bb79becSeschrock 13403bb79becSeschrock return (ret); 13413bb79becSeschrock } 1342