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Commit	Line	Data
710b4c75 MD	1	/*
	2	* Copyright (c) 2009 The DragonFly Project. All rights reserved.
	3	*
	4	* This code is derived from software contributed to The DragonFly Project
	5	* by Alex Hornung <ahornung@gmail.com>
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	*
	11	* 1. Redistributions of source code must retain the above copyright
	12	* notice, this list of conditions and the following disclaimer.
	13	* 2. Redistributions in binary form must reproduce the above copyright
	14	* notice, this list of conditions and the following disclaimer in
	15	* the documentation and/or other materials provided with the
	16	* distribution.
	17	* 3. Neither the name of The DragonFly Project nor the names of its
	18	* contributors may be used to endorse or promote products derived
	19	* from this software without specific, prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	22	* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	23	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
	24	* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
	25	* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
	26	* INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
	27	* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	28	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
	29	* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	30	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
	31	* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	32	* SUCH DAMAGE.
	33	*/
2dc55a02	34
710b4c75 MD	35	#include <sys/param.h>
710b4c75 MD	36	#include <sys/mount.h>
2c1e28dd	37	#include <sys/devfs.h>
710b4c75 MD	38
710b4c75 MD	39	#include <err.h>
2dc55a02	40	#include <mntopts.h>
710b4c75 MD	41	#include <stdio.h>
	42	#include <stdlib.h>
	43	#include <string.h>
	44	#include <sysexits.h>
	45	#include <unistd.h>
	46
85819c59 AH	47	#if 0
	48	#define MOPT_UPDATE { "update", 0, MNT_UPDATE, 0 }
	49	#endif
	50	#define MOPT_DEVFSOPTS \
	51	{ "ruleset=", 0, DEVFS_MNT_RULESET, 1 }, \
	52	{ "jail", 0, DEVFS_MNT_JAIL, 1 }
	53
	54
710b4c75 MD	55	struct mntopt mopts[] = {
710b4c75 MD	56	MOPT_STDOPTS,
85819c59 AH	57	MOPT_DEVFSOPTS,
	58	#if 0
	59	MOPT_UPDATE,
	60	#endif
710b4c75 MD	61	MOPT_NULL
	62	};
	63
	64	static void usage(void);
	65
	66	int
	67	main(int argc, char **argv)
	68	{
85819c59 AH	69	struct statfs sfb;
85819c59 AH	70	struct devfs_mount_info info;
710b4c75	71	int ch, mntflags;
ecbd263a	72	char ptr, mntto;
710b4c75	73	char mntpoint[MAXPATHLEN];
85819c59	74	char rule_file[MAXPATHLEN];
710b4c75 MD	75	struct vfsconf vfc;
710b4c75 MD	76	int error;
85819c59 AH	77	info.flags = 0;
	78	int i,k;
	79	int mounted = 0;
710b4c75	80
710b4c75 MD	81	mntflags = 0;
710b4c75 MD	82
710b4c75 MD	83	while ((ch = getopt(argc, argv, "o:")) != -1)
	84	switch(ch) {
	85	case 'o':
85819c59 AH	86	getmntopts(optarg, mopts, &mntflags, &info.flags);
	87	ptr = strstr(optarg, "ruleset=");
	88	if (ptr) {
	89	ptr += 8;
	90	for (i = 0, k = 0;
e0b1d537	91	(i < MAXPATHLEN) && (ptr[i] != '\0') && (ptr[i] != ',');
85819c59 AH	92	i++) {
	93	rule_file[k++] = ptr[i];
	94
	95	}
	96	rule_file[k] = '\0';
	97	}
710b4c75 MD	98	break;
	99	case '?':
	100	default:
	101	usage();
	102	}
	103	argc -= optind;
	104	argv += optind;
	105
	106	if (argc < 1)
	107	usage();
	108
	109	/* resolve mount point with realpath(3) */
ecbd263a AH	110	switch(argc) {
	111	case 1:
	112	mntto = argv[0];
	113	break;
	114	case 2:
	115	mntto = argv[1];
	116	break;
	117	default:
	118	mntto = NULL;
	119	usage();
	120	/* NOTREACHED */
	121	}
710b4c75	122
ecbd263a	123	checkpath(mntto, mntpoint);
710b4c75 MD	124
	125	error = getvfsbyname("devfs", &vfc);
	126	if (error && vfsisloadable("devfs")) {
	127	if(vfsload("devfs"))
	128	err(EX_OSERR, "vfsload(devfs)");
	129	endvfsent();
	130	error = getvfsbyname("devfs", &vfc);
	131	}
	132	if (error)
	133	errx(EX_OSERR, "devfs filesystem is not available");
	134
85819c59 AH	135	error = statfs(mntpoint, &sfb);
	136
	137	if (error)
	138	err(EX_OSERR, "could not statfs() the mount point");
	139
	140	if ((!strcmp(sfb.f_fstypename, "devfs")) &&
	141	(!strcmp(sfb.f_mntfromname, "devfs"))) {
	142	mounted = 1;
	143	}
	144
	145	if (!mounted) {
	146	if (mount(vfc.vfc_name, mntpoint, mntflags, &info))
	147	err(1, NULL);
84dcbb75 AH	148	} else {
	149	if (fork() == 0) {
	150	execlp("devfsctl", "devfsctl",
	151	"-m", mntpoint,
	152	"-c",
	153	"-r",
	154	NULL);
	155	}
85819c59 AH	156	}
	157
	158	if (info.flags & DEVFS_MNT_RULESET) {
	159	if (fork() == 0) {
	160	execlp("devfsctl", "devfsctl",
	161	"-m", mntpoint,
	162	"-a",
	163	"-f", rule_file,
	164	NULL);
	165	}
	166	}
710b4c75 MD	167	exit(0);
	168	}
	169
	170	static void
	171	usage(void)
	172	{
	173	fprintf(stderr,
ecbd263a	174	"usage: mount_devfs [-o options] [mount_from] mount_point\n");
710b4c75 MD	175	exit(1);
710b4c75 MD	176	}