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head/sbin/zfsbootcfg/zfsbootcfg.c
| Property | Old Value | New Value |
|---|---|---|
| svn:eol-style | null | native \ No newline at end of property |
| svn:keywords | null | FreeBSD=%H \ No newline at end of property |
| svn:mime-type | null | text/plain \ No newline at end of property |
| /*- | |||||
| * Copyright (c) 2016 Andriy Gapon <avg@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 AUTHOR ``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 AUTHOR 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. | |||||
| */ | |||||
| #include <sys/cdefs.h> | |||||
| __FBSDID("$FreeBSD$"); | |||||
| #include <sys/types.h> | |||||
| #include <errno.h> | |||||
| #include <limits.h> | |||||
| #include <inttypes.h> | |||||
| #include <stdio.h> | |||||
| #include <stdlib.h> | |||||
| #include <string.h> | |||||
| #include <kenv.h> | |||||
| #include <libzfs.h> | |||||
| /* Keep in sync with zfsboot.c. */ | |||||
| #define MAX_COMMAND_LEN 512 | |||||
| int main(int argc, const char * const *argv) | |||||
| { | |||||
| char buf[32]; | |||||
| libzfs_handle_t *hdl; | |||||
| uint64_t pool_guid; | |||||
| uint64_t vdev_guid; | |||||
| int zfs_fd; | |||||
| int len; | |||||
| if (argc != 2) { | |||||
| fprintf(stderr, "usage: zfsbootcfg <boot.config(5) options>\n"); | |||||
| return (1); | |||||
| } | |||||
| len = strlen(argv[1]); | |||||
| if (len >= MAX_COMMAND_LEN) { | |||||
| fprintf(stderr, "options string is too long\n"); | |||||
| return (1); | |||||
| } | |||||
| if (kenv(KENV_GET, "vfs.zfs.boot.primary_pool", buf, sizeof(buf)) <= 0) { | |||||
| perror("can't get vfs.zfs.boot.primary_pool"); | |||||
| return (1); | |||||
| } | |||||
| pool_guid = strtoumax(buf, NULL, 10); | |||||
| if (pool_guid == 0) { | |||||
| perror("can't parse vfs.zfs.boot.primary_pool"); | |||||
| return (1); | |||||
| } | |||||
| if (kenv(KENV_GET, "vfs.zfs.boot.primary_vdev", buf, sizeof(buf)) <= 0) { | |||||
| perror("can't get vfs.zfs.boot.primary_vdev"); | |||||
| return (1); | |||||
| } | |||||
| vdev_guid = strtoumax(buf, NULL, 10); | |||||
| if (vdev_guid == 0) { | |||||
| perror("can't parse vfs.zfs.boot.primary_vdev"); | |||||
| return (1); | |||||
| } | |||||
| if ((hdl = libzfs_init()) == NULL) { | |||||
| (void) fprintf(stderr, "internal error: failed to " | |||||
| "initialize ZFS library\n"); | |||||
| return (1); | |||||
| } | |||||
| if (zpool_nextboot(hdl, pool_guid, vdev_guid, argv[1]) != 0) { | |||||
| perror("ZFS_IOC_NEXTBOOT failed"); | |||||
| libzfs_fini(hdl); | |||||
| return (1); | |||||
| } | |||||
| libzfs_fini(hdl); | |||||
| printf("zfs next boot options are successfully written\n"); | |||||
| return (0); | |||||
| } | |||||