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41eba77061
The same change has already been done for domount(). On macOS platform we need to have access to zhp to handle devdisks and snapshots. Also, symmetry is pleasing. In addition, the code in zpool_disable_datasets which sorts the mountpoints did not sort the related handle, which meant that the mountpoint, and the handle that it is paired with, was lost. You'd get a random handle with the mountpoint. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Signed-off-by: Jorgen Lundman <lundman@lundman.net> Closes #12296
136 lines
3.6 KiB
C
136 lines
3.6 KiB
C
/*
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* Copyright (c) 2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* This file implements Solaris compatible zmount() function.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/uio.h>
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#include <sys/mntent.h>
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mnttab.h>
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#include <sys/errno.h>
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#include <libzfs.h>
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#include "../../libzfs_impl.h"
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static void
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build_iovec(struct iovec **iov, int *iovlen, const char *name, void *val,
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size_t len)
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{
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int i;
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if (*iovlen < 0)
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return;
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i = *iovlen;
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*iov = realloc(*iov, sizeof (**iov) * (i + 2));
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if (*iov == NULL) {
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*iovlen = -1;
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return;
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}
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(*iov)[i].iov_base = strdup(name);
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(*iov)[i].iov_len = strlen(name) + 1;
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i++;
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(*iov)[i].iov_base = val;
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if (len == (size_t)-1) {
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if (val != NULL)
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len = strlen(val) + 1;
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else
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len = 0;
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}
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(*iov)[i].iov_len = (int)len;
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*iovlen = ++i;
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}
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static int
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do_mount_(const char *spec, const char *dir, int mflag, char *fstype,
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char *dataptr, int datalen, char *optptr, int optlen)
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{
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struct iovec *iov;
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char *optstr, *p, *tofree;
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int iovlen, rv;
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assert(spec != NULL);
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assert(dir != NULL);
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assert(fstype != NULL);
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assert(strcmp(fstype, MNTTYPE_ZFS) == 0);
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assert(dataptr == NULL);
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assert(datalen == 0);
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assert(optptr != NULL);
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assert(optlen > 0);
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tofree = optstr = strdup(optptr);
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assert(optstr != NULL);
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iov = NULL;
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iovlen = 0;
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if (strstr(optstr, MNTOPT_REMOUNT) != NULL)
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build_iovec(&iov, &iovlen, "update", NULL, 0);
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if (mflag & MS_RDONLY)
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build_iovec(&iov, &iovlen, "ro", NULL, 0);
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build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1);
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build_iovec(&iov, &iovlen, "fspath", __DECONST(char *, dir),
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(size_t)-1);
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build_iovec(&iov, &iovlen, "from", __DECONST(char *, spec), (size_t)-1);
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while ((p = strsep(&optstr, ",/")) != NULL)
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build_iovec(&iov, &iovlen, p, NULL, (size_t)-1);
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rv = nmount(iov, iovlen, 0);
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free(tofree);
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if (rv < 0)
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return (errno);
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return (rv);
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}
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int
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do_mount(zfs_handle_t *zhp, const char *mntpt, char *opts, int flags)
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{
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return (do_mount_(zfs_get_name(zhp), mntpt, flags, MNTTYPE_ZFS, NULL, 0,
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opts, sizeof (mntpt)));
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}
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int
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do_unmount(zfs_handle_t *zhp, const char *mntpt, int flags)
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{
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if (unmount(mntpt, flags) < 0)
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return (errno);
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return (0);
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}
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int
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zfs_mount_delegation_check(void)
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{
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return (0);
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}
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