xref: /onnv-gate/usr/src/cmd/fs.d/hsfs/mount/mount.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <ctype.h>
30*0Sstevel@tonic-gate #include <string.h>
31*0Sstevel@tonic-gate #include <stdio.h>
32*0Sstevel@tonic-gate #include <unistd.h>	/* defines F_LOCK for lockf */
33*0Sstevel@tonic-gate #include <stdlib.h>	/* for getopt(3) */
34*0Sstevel@tonic-gate #include <signal.h>
35*0Sstevel@tonic-gate #include <locale.h>
36*0Sstevel@tonic-gate #include <fslib.h>
37*0Sstevel@tonic-gate #include <sys/types.h>
38*0Sstevel@tonic-gate #include <errno.h>
39*0Sstevel@tonic-gate #include <sys/mnttab.h>
40*0Sstevel@tonic-gate #include <sys/mntent.h>
41*0Sstevel@tonic-gate #include <sys/mount.h>
42*0Sstevel@tonic-gate #include <sys/vfs.h>
43*0Sstevel@tonic-gate #include <sys/fs/hsfs_susp.h>
44*0Sstevel@tonic-gate #include <sys/fs/hsfs_rrip.h>
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate extern int optind;
47*0Sstevel@tonic-gate extern char *optarg;
48*0Sstevel@tonic-gate 
49*0Sstevel@tonic-gate #define	NAME_MAX	64
50*0Sstevel@tonic-gate #define	GLOBAL		0
51*0Sstevel@tonic-gate #define	NOGLOBAL	1
52*0Sstevel@tonic-gate 
53*0Sstevel@tonic-gate #ifndef	MNTOPT_NOGLOBAL
54*0Sstevel@tonic-gate #define	MNTOPT_NOGLOBAL	"noglobal"
55*0Sstevel@tonic-gate #endif	/* MNTOPT_NOGLOBAL */
56*0Sstevel@tonic-gate 
57*0Sstevel@tonic-gate static int gflg		= 0;	/* mount into global name space: flag form */
58*0Sstevel@tonic-gate static int global	= 0;	/* mount into global name space: option form */
59*0Sstevel@tonic-gate static int havegblopt	= 0;	/* global value supercedes gflg value */
60*0Sstevel@tonic-gate static int qflg		= 0;	/* quiet option - don't flag bad options */
61*0Sstevel@tonic-gate 
62*0Sstevel@tonic-gate static char fstype[] = MNTTYPE_HSFS;
63*0Sstevel@tonic-gate 
64*0Sstevel@tonic-gate static char typename[NAME_MAX], *myname;
65*0Sstevel@tonic-gate /*
66*0Sstevel@tonic-gate  * Mount options that require special handling
67*0Sstevel@tonic-gate  */
68*0Sstevel@tonic-gate static char *myopts[] = {
69*0Sstevel@tonic-gate 	MNTOPT_GLOBAL,
70*0Sstevel@tonic-gate 	MNTOPT_NOGLOBAL,
71*0Sstevel@tonic-gate 	NULL
72*0Sstevel@tonic-gate };
73*0Sstevel@tonic-gate 
74*0Sstevel@tonic-gate 
75*0Sstevel@tonic-gate static void rpterr(char *, char *);
76*0Sstevel@tonic-gate static void usage(void);
77*0Sstevel@tonic-gate 
78*0Sstevel@tonic-gate int
main(int argc,char ** argv)79*0Sstevel@tonic-gate main(int argc, char **argv)
80*0Sstevel@tonic-gate {
81*0Sstevel@tonic-gate 	char *options, *value;
82*0Sstevel@tonic-gate 	char *special, *mountp;
83*0Sstevel@tonic-gate 	char *gopt;
84*0Sstevel@tonic-gate 	struct mnttab mm;
85*0Sstevel@tonic-gate 	int c;
86*0Sstevel@tonic-gate 	char	obuff[MAX_MNTOPT_STR];
87*0Sstevel@tonic-gate 	char	saved_input_options[MAX_MNTOPT_STR];
88*0Sstevel@tonic-gate 	int hsfs_flags;
89*0Sstevel@tonic-gate 
90*0Sstevel@tonic-gate 	int flags;
91*0Sstevel@tonic-gate 	int Oflg = 0;   /* Overlay mounts */
92*0Sstevel@tonic-gate 
93*0Sstevel@tonic-gate 	(void) setlocale(LC_ALL, "");
94*0Sstevel@tonic-gate 
95*0Sstevel@tonic-gate #if !defined(TEXT_DOMAIN)
96*0Sstevel@tonic-gate #define	TEXT_DOMAIN "SYS_TEST"
97*0Sstevel@tonic-gate #endif
98*0Sstevel@tonic-gate 	(void) textdomain(TEXT_DOMAIN);
99*0Sstevel@tonic-gate 
100*0Sstevel@tonic-gate 	myname = strrchr(argv[0], '/');
101*0Sstevel@tonic-gate 	if (myname)
102*0Sstevel@tonic-gate 		myname++;
103*0Sstevel@tonic-gate 	else
104*0Sstevel@tonic-gate 		myname = argv[0];
105*0Sstevel@tonic-gate 	snprintf(typename, sizeof (typename), "%s %s", fstype, myname);
106*0Sstevel@tonic-gate 	argv[0] = typename;
107*0Sstevel@tonic-gate 
108*0Sstevel@tonic-gate 	/*
109*0Sstevel@tonic-gate 	 * Check for arguments requiring special handling.  Ignore
110*0Sstevel@tonic-gate 	 * unrecognized options.
111*0Sstevel@tonic-gate 	 */
112*0Sstevel@tonic-gate 	strcpy(obuff, "ro");	/* default */
113*0Sstevel@tonic-gate 	while ((c = getopt(argc, argv, "o:rmOgq")) != EOF) {
114*0Sstevel@tonic-gate 		switch (c) {
115*0Sstevel@tonic-gate 			case 'o':
116*0Sstevel@tonic-gate 				if (strlen(optarg) > MAX_MNTOPT_STR) {
117*0Sstevel@tonic-gate 					(void) fprintf(stderr, gettext(
118*0Sstevel@tonic-gate 					    "%s: option set too long\n"),
119*0Sstevel@tonic-gate 					    myname);
120*0Sstevel@tonic-gate 					exit(1);
121*0Sstevel@tonic-gate 				}
122*0Sstevel@tonic-gate 				if (strlen(optarg) == 0) {
123*0Sstevel@tonic-gate 					(void) fprintf(stderr, gettext(
124*0Sstevel@tonic-gate 					    "%s: missing suboptions\n"),
125*0Sstevel@tonic-gate 					    myname);
126*0Sstevel@tonic-gate 					exit(1);
127*0Sstevel@tonic-gate 				}
128*0Sstevel@tonic-gate 				strcpy(obuff, optarg);
129*0Sstevel@tonic-gate 				options = optarg;
130*0Sstevel@tonic-gate 				while (*options != '\0') {
131*0Sstevel@tonic-gate 					switch (getsubopt(&options, myopts,
132*0Sstevel@tonic-gate 					    &value)) {
133*0Sstevel@tonic-gate 					case GLOBAL:
134*0Sstevel@tonic-gate 						havegblopt = 1;
135*0Sstevel@tonic-gate 						global = 1;
136*0Sstevel@tonic-gate 						break;
137*0Sstevel@tonic-gate 					case NOGLOBAL:
138*0Sstevel@tonic-gate 						havegblopt = 1;
139*0Sstevel@tonic-gate 						global = 0;
140*0Sstevel@tonic-gate 						break;
141*0Sstevel@tonic-gate 					}
142*0Sstevel@tonic-gate 				}
143*0Sstevel@tonic-gate 				break;
144*0Sstevel@tonic-gate 			case 'O':
145*0Sstevel@tonic-gate 				Oflg++;
146*0Sstevel@tonic-gate 				break;
147*0Sstevel@tonic-gate 			case 'r':
148*0Sstevel@tonic-gate 				/* accept for backwards compatibility */
149*0Sstevel@tonic-gate 				break;
150*0Sstevel@tonic-gate 			case 'm':
151*0Sstevel@tonic-gate 				break;
152*0Sstevel@tonic-gate 			case 'g':
153*0Sstevel@tonic-gate 				gflg++;
154*0Sstevel@tonic-gate 				break;
155*0Sstevel@tonic-gate 			case 'q':
156*0Sstevel@tonic-gate 				qflg++;
157*0Sstevel@tonic-gate 				break;
158*0Sstevel@tonic-gate 
159*0Sstevel@tonic-gate 		}
160*0Sstevel@tonic-gate 	}
161*0Sstevel@tonic-gate 
162*0Sstevel@tonic-gate 	if ((argc - optind) != 2)
163*0Sstevel@tonic-gate 		usage();
164*0Sstevel@tonic-gate 
165*0Sstevel@tonic-gate 	special = argv[optind++];
166*0Sstevel@tonic-gate 	mountp = argv[optind++];
167*0Sstevel@tonic-gate 
168*0Sstevel@tonic-gate 	/*
169*0Sstevel@tonic-gate 	 * Force readonly.  obuff is guaranteed to have something in
170*0Sstevel@tonic-gate 	 * it.  We might end up with "ro,ro", but that's acceptable.
171*0Sstevel@tonic-gate 	 */
172*0Sstevel@tonic-gate 	flags = MS_RDONLY;
173*0Sstevel@tonic-gate 
174*0Sstevel@tonic-gate 	if ((strlen(obuff) + strlen(MNTOPT_RO) + 2) > MAX_MNTOPT_STR) {
175*0Sstevel@tonic-gate 		(void) fprintf(stderr, gettext("%s: option set too long\n"),
176*0Sstevel@tonic-gate 		    myname);
177*0Sstevel@tonic-gate 		exit(1);
178*0Sstevel@tonic-gate 	}
179*0Sstevel@tonic-gate 
180*0Sstevel@tonic-gate 	strcat(obuff, ",");
181*0Sstevel@tonic-gate 	strcat(obuff, MNTOPT_RO);
182*0Sstevel@tonic-gate 
183*0Sstevel@tonic-gate 	flags |= Oflg ? MS_OVERLAY : 0;
184*0Sstevel@tonic-gate 
185*0Sstevel@tonic-gate 	/*
186*0Sstevel@tonic-gate 	 * xxx it's not clear if should just put MS_GLOBAL in flags,
187*0Sstevel@tonic-gate 	 * or provide it as a string.  Be safe, do both.  The subopt
188*0Sstevel@tonic-gate 	 * version has precedence over the switch version.
189*0Sstevel@tonic-gate 	 */
190*0Sstevel@tonic-gate 	gopt = NULL;
191*0Sstevel@tonic-gate 	if ((havegblopt && global) || gflg) {
192*0Sstevel@tonic-gate 		gopt = MNTOPT_GLOBAL;
193*0Sstevel@tonic-gate 		flags |= MS_GLOBAL;
194*0Sstevel@tonic-gate 	} else if (havegblopt) {
195*0Sstevel@tonic-gate 		gopt = MNTOPT_NOGLOBAL;
196*0Sstevel@tonic-gate 	}
197*0Sstevel@tonic-gate 
198*0Sstevel@tonic-gate 	if (gopt != NULL) {
199*0Sstevel@tonic-gate 		if ((strlen(obuff) + strlen(gopt) + 2) > MAX_MNTOPT_STR) {
200*0Sstevel@tonic-gate 			(void) fprintf(stderr,
201*0Sstevel@tonic-gate 			    gettext("%s: option set too long\n"), myname);
202*0Sstevel@tonic-gate 			exit(1);
203*0Sstevel@tonic-gate 		}
204*0Sstevel@tonic-gate 
205*0Sstevel@tonic-gate 		strcat(obuff, ",");
206*0Sstevel@tonic-gate 		strcat(obuff, gopt);
207*0Sstevel@tonic-gate 	}
208*0Sstevel@tonic-gate 
209*0Sstevel@tonic-gate 	signal(SIGHUP,  SIG_IGN);
210*0Sstevel@tonic-gate 	signal(SIGQUIT, SIG_IGN);
211*0Sstevel@tonic-gate 	signal(SIGINT,  SIG_IGN);
212*0Sstevel@tonic-gate 
213*0Sstevel@tonic-gate 	/*
214*0Sstevel@tonic-gate 	 * Save a copy of the options to compare with the options that
215*0Sstevel@tonic-gate 	 * were actually recognized and supported by the kernel.
216*0Sstevel@tonic-gate 	 */
217*0Sstevel@tonic-gate 
218*0Sstevel@tonic-gate 	(void) strcpy(saved_input_options, obuff);
219*0Sstevel@tonic-gate 
220*0Sstevel@tonic-gate 	/*
221*0Sstevel@tonic-gate 	 * Perform the mount.
222*0Sstevel@tonic-gate 	 */
223*0Sstevel@tonic-gate 
224*0Sstevel@tonic-gate 	if (mount(special, mountp, flags | MS_OPTIONSTR, fstype, NULL, 0,
225*0Sstevel@tonic-gate 		obuff, sizeof (obuff)) == -1) {
226*0Sstevel@tonic-gate 		rpterr(special, mountp);
227*0Sstevel@tonic-gate 		exit(31+2);
228*0Sstevel@tonic-gate 	}
229*0Sstevel@tonic-gate 
230*0Sstevel@tonic-gate 	if (!qflg) {
231*0Sstevel@tonic-gate 		cmp_requested_to_actual_options(saved_input_options, obuff,
232*0Sstevel@tonic-gate 			special, mountp);
233*0Sstevel@tonic-gate 	}
234*0Sstevel@tonic-gate 
235*0Sstevel@tonic-gate 	exit(0);
236*0Sstevel@tonic-gate 	/* NOTREACHED */
237*0Sstevel@tonic-gate }
238*0Sstevel@tonic-gate 
239*0Sstevel@tonic-gate 
240*0Sstevel@tonic-gate static void
rpterr(char * bs,char * mp)241*0Sstevel@tonic-gate rpterr(char *bs, char *mp)
242*0Sstevel@tonic-gate {
243*0Sstevel@tonic-gate 	switch (errno) {
244*0Sstevel@tonic-gate 	case EPERM:
245*0Sstevel@tonic-gate 		(void) fprintf(stderr, gettext("%s: insufficient privileges\n"),
246*0Sstevel@tonic-gate 		    myname);
247*0Sstevel@tonic-gate 		break;
248*0Sstevel@tonic-gate 	case ENXIO:
249*0Sstevel@tonic-gate 		(void) fprintf(stderr, gettext("%s: %s no such device\n"),
250*0Sstevel@tonic-gate 		    myname, bs);
251*0Sstevel@tonic-gate 		break;
252*0Sstevel@tonic-gate 	case ENOTDIR:
253*0Sstevel@tonic-gate 		(void) fprintf(stderr, gettext("%s: %s not a directory\n\tor a "
254*0Sstevel@tonic-gate 		    "component of %s is not a directory\n"), myname, mp, bs);
255*0Sstevel@tonic-gate 		break;
256*0Sstevel@tonic-gate 	case ENOENT:
257*0Sstevel@tonic-gate 		(void) fprintf(stderr,
258*0Sstevel@tonic-gate 		    gettext("%s: %s or %s, no such file or directory\n"),
259*0Sstevel@tonic-gate 		    myname, bs, mp);
260*0Sstevel@tonic-gate 		break;
261*0Sstevel@tonic-gate 	case EINVAL:
262*0Sstevel@tonic-gate 		(void) fprintf(stderr, gettext("%s: %s is not an hsfs file "
263*0Sstevel@tonic-gate 		    "system.\n"), typename, bs);
264*0Sstevel@tonic-gate 		break;
265*0Sstevel@tonic-gate 	case EBUSY:
266*0Sstevel@tonic-gate 		(void) fprintf(stderr,
267*0Sstevel@tonic-gate 		    gettext("%s: %s is already mounted or %s is busy\n"),
268*0Sstevel@tonic-gate 		    myname, bs, mp);
269*0Sstevel@tonic-gate 		break;
270*0Sstevel@tonic-gate 	case ENOTBLK:
271*0Sstevel@tonic-gate 		(void) fprintf(stderr,
272*0Sstevel@tonic-gate 		    gettext("%s: %s not a block device\n"), myname, bs);
273*0Sstevel@tonic-gate 		break;
274*0Sstevel@tonic-gate 	case EROFS:
275*0Sstevel@tonic-gate 		(void) fprintf(stderr, gettext("%s: %s write-protected\n"),
276*0Sstevel@tonic-gate 		    myname, bs);
277*0Sstevel@tonic-gate 		break;
278*0Sstevel@tonic-gate 	case ENOSPC:
279*0Sstevel@tonic-gate 		(void) fprintf(stderr,
280*0Sstevel@tonic-gate 		    gettext("%s: %s is corrupted. needs checking\n"),
281*0Sstevel@tonic-gate 		    myname, bs);
282*0Sstevel@tonic-gate 		break;
283*0Sstevel@tonic-gate 	default:
284*0Sstevel@tonic-gate 		perror(myname);
285*0Sstevel@tonic-gate 		(void) fprintf(stderr, gettext("%s: cannot mount %s\n"), myname,
286*0Sstevel@tonic-gate 		    bs);
287*0Sstevel@tonic-gate 	}
288*0Sstevel@tonic-gate }
289*0Sstevel@tonic-gate 
290*0Sstevel@tonic-gate 
291*0Sstevel@tonic-gate static void
usage()292*0Sstevel@tonic-gate usage()
293*0Sstevel@tonic-gate {
294*0Sstevel@tonic-gate 	char *opts;
295*0Sstevel@tonic-gate 
296*0Sstevel@tonic-gate opts = "{-r | -o ro | -o nrr | -o nosuid | -o notraildot | -o nomaplcase}";
297*0Sstevel@tonic-gate 	(void) fprintf(stdout,
298*0Sstevel@tonic-gate gettext("hsfs usage: mount [-F hsfs] %s {special | mount_point}\n"), opts);
299*0Sstevel@tonic-gate 	(void) fprintf(stdout,
300*0Sstevel@tonic-gate gettext("hsfs usage: mount [-F hsfs] %s special mount_point\n"), opts);
301*0Sstevel@tonic-gate 	exit(32);
302*0Sstevel@tonic-gate }
303