diff options
Diffstat (limited to 'sys/contrib/openzfs/lib/libzfs/os/freebsd/libzfs_zmount.c')
| -rw-r--r-- | sys/contrib/openzfs/lib/libzfs/os/freebsd/libzfs_zmount.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/lib/libzfs/os/freebsd/libzfs_zmount.c b/sys/contrib/openzfs/lib/libzfs/os/freebsd/libzfs_zmount.c new file mode 100644 index 000000000000..2207fffc5573 --- /dev/null +++ b/sys/contrib/openzfs/lib/libzfs/os/freebsd/libzfs_zmount.c @@ -0,0 +1,139 @@ +/* + * 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 (strstr(optstr, MNTOPT_NOXATTR) == NULL && + strstr(optstr, MNTOPT_XATTR) == NULL && + strstr(optstr, MNTOPT_SAXATTR) == NULL && + strstr(optstr, MNTOPT_DIRXATTR) == NULL) + build_iovec(&iov, &iovlen, "xattr", 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) +{ + + return (unmount(mntpt, flags)); +} + +int +zfs_mount_delegation_check(void) +{ + return (0); +} |