| /* |
| * Copyright (c) 2006 Pawel Jakub Dawidek <pjd@FreeBSD.org> |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| /* |
| * This file implements Solaris compatible zmount() function. |
| */ |
| |
| #include <sys/cdefs.h> |
| __FBSDID("$FreeBSD$"); |
| |
| #include <sys/param.h> |
| #include <sys/mount.h> |
| #include <sys/uio.h> |
| #include <sys/mntent.h> |
| #include <assert.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/mnttab.h> |
| #include <sys/errno.h> |
| #include <libzfs.h> |
| |
| #include "libzfs_impl.h" |
| |
| static void |
| build_iovec(struct iovec **iov, int *iovlen, const char *name, void *val, |
| size_t len) |
| { |
| int i; |
| |
| if (*iovlen < 0) |
| return; |
| i = *iovlen; |
| *iov = realloc(*iov, sizeof (**iov) * (i + 2)); |
| if (*iov == NULL) { |
| *iovlen = -1; |
| return; |
| } |
| (*iov)[i].iov_base = strdup(name); |
| (*iov)[i].iov_len = strlen(name) + 1; |
| i++; |
| (*iov)[i].iov_base = val; |
| if (len == (size_t)-1) { |
| if (val != NULL) |
| len = strlen(val) + 1; |
| else |
| len = 0; |
| } |
| (*iov)[i].iov_len = (int)len; |
| *iovlen = ++i; |
| } |
| |
| static int |
| do_mount_(const char *spec, const char *dir, int mflag, char *fstype, |
| char *dataptr, int datalen, char *optptr, int optlen) |
| { |
| struct iovec *iov; |
| char *optstr, *p, *tofree; |
| int iovlen, rv; |
| |
| assert(spec != NULL); |
| assert(dir != NULL); |
| assert(fstype != NULL); |
| assert(strcmp(fstype, MNTTYPE_ZFS) == 0); |
| assert(dataptr == NULL); |
| assert(datalen == 0); |
| assert(optptr != NULL); |
| assert(optlen > 0); |
| |
| tofree = optstr = strdup(optptr); |
| assert(optstr != NULL); |
| |
| iov = NULL; |
| iovlen = 0; |
| if (strstr(optstr, MNTOPT_REMOUNT) != NULL) |
| build_iovec(&iov, &iovlen, "update", NULL, 0); |
| if (mflag & MS_RDONLY) |
| build_iovec(&iov, &iovlen, "ro", NULL, 0); |
| build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1); |
| build_iovec(&iov, &iovlen, "fspath", __DECONST(char *, dir), |
| (size_t)-1); |
| build_iovec(&iov, &iovlen, "from", __DECONST(char *, spec), (size_t)-1); |
| while ((p = strsep(&optstr, ",/")) != NULL) |
| build_iovec(&iov, &iovlen, p, NULL, (size_t)-1); |
| rv = nmount(iov, iovlen, 0); |
| free(tofree); |
| if (rv < 0) |
| return (errno); |
| return (rv); |
| } |
| |
| int |
| do_mount(zfs_handle_t *zhp, const char *mntpt, char *opts, int flags) |
| { |
| |
| return (do_mount_(zfs_get_name(zhp), mntpt, flags, MNTTYPE_ZFS, NULL, 0, |
| opts, sizeof (mntpt))); |
| } |
| |
| int |
| do_unmount(const char *mntpt, int flags) |
| { |
| if (unmount(mntpt, flags) < 0) |
| return (errno); |
| return (0); |
| } |
| |
| int |
| zfs_mount_delegation_check(void) |
| { |
| return (0); |
| } |