1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2002 Cluster File Systems, Inc.
5 * Author: Robert Read <rread@clusterfs.com>
6 * Author: Nathan Rutman <nathan@clusterfs.com>
8 * This file is part of Lustre, http://www.lustre.org.
10 * Lustre is free software; you can redistribute it and/or
11 * modify it under the terms of version 2 of the GNU General Public
12 * License as published by the Free Software Foundation.
14 * Lustre is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with Lustre; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
33 #include <sys/mount.h>
36 #include <sys/utsname.h>
37 #include <linux/lustre_ver.h>
44 static char *progname = NULL;
48 fprintf(out, "%s v"LUSTRE_VERSION_STRING"\n", progname);
49 fprintf(out, "usage: %s [-fhnv] [-o <mntopt>] <device> <mountpt>\n",
52 "\t<device>: the disk device, or for a client:\n"
53 "\t\t<mgmtnid>[:<altmgtnid>...]:/<filesystem>-client\n"
54 "\t<filesystem>: name of the Lustre filesystem (e.g. lustre1)\n"
55 "\t<mountpt>: filesystem mountpoint (e.g. /mnt/lustre)\n"
56 "\t-f|--fake: fake mount (updates /etc/mtab)\n"
57 "\t--force: force mount even if already in /etc/mtab\n"
58 "\t-h|--help: print this usage message\n"
59 "\t-n|--nomtab: do not update /etc/mtab after mount\n"
60 "\t-v|--verbose: print verbose config settings\n"
61 "\t<mntopt>: one or more comma separated of:\n"
62 "\t\t(no)flock,(no)user_xattr,(no)acl\n"
63 "\t\tnosvc: only start MGC/MGS obds\n"
64 "\t\texclude=<ostname>[:<ostname>] : colon-separated list of "
65 "inactive OSTs (e.g. lustre-OST0001)\n"
67 exit((out != stdout) ? EINVAL : 0);
70 static int check_mtab_entry(char *spec, char *mtpt, char *type)
78 fp = setmntent(MOUNTED, "r");
82 while ((mnt = getmntent(fp)) != NULL) {
83 if (strcmp(mnt->mnt_fsname, spec) == 0 &&
84 strcmp(mnt->mnt_dir, mtpt) == 0 &&
85 strcmp(mnt->mnt_type, type) == 0) {
86 fprintf(stderr, "%s: according to %s %s is "
87 "already mounted on %s\n",
88 progname, MOUNTED, spec, mtpt);
89 return(1); /* or should we return an error? */
98 update_mtab_entry(char *spec, char *mtpt, char *type, char *opts,
99 int flags, int freq, int pass)
105 mnt.mnt_fsname = spec;
108 mnt.mnt_opts = opts ? opts : "";
110 mnt.mnt_passno = pass;
112 fp = setmntent(MOUNTED, "a+");
114 fprintf(stderr, "%s: setmntent(%s): %s:",
115 progname, MOUNTED, strerror (errno));
118 if ((addmntent(fp, &mnt)) == 1) {
119 fprintf(stderr, "%s: addmntent: %s:",
120 progname, strerror (errno));
129 /* Get rid of symbolic hostnames for tcp, since kernel can't do lookups */
130 #define MAXNIDSTR 1024
131 static char *convert_hostnames(char *s1)
133 char *converted, *s2 = 0, *c;
135 int left = MAXNIDSTR;
138 converted = malloc(left);
140 while ((left > 0) && (*s1 != '/')) {
141 s2 = strpbrk(s1, ",:");
146 nid = libcfs_str2nid(s1);
147 if (nid == LNET_NID_ANY)
149 if (LNET_NETTYP(LNET_NIDNET(nid)) == SOCKLND) {
150 __u32 addr = LNET_NIDADDR(nid);
151 c += snprintf(c, left, "%u.%u.%u.%u@%s%u%c",
152 (addr >> 24) & 0xff, (addr >> 16) & 0xff,
153 (addr >> 8) & 0xff, addr & 0xff,
154 libcfs_lnd2str(SOCKLND),
155 LNET_NETNUM(LNET_NIDNET(nid)), sep);
157 c += snprintf(c, left, "%s%c", s1, sep);
159 left = converted + MAXNIDSTR - c;
162 snprintf(c, left, "%s", s1);
165 fprintf(stderr, "%s: Can't parse NID '%s'\n", progname, s1);
170 /*****************************************************************************
172 * This part was cribbed from util-linux/mount/mount.c. There was no clear
173 * license information, but many other files in the package are identified as
174 * GNU GPL, so it's a pretty safe bet that was their intent.
176 ****************************************************************************/
178 const char *opt; /* option name */
179 int skip; /* skip in mtab option string */
180 int inv; /* true if flag value should be inverted */
181 int mask; /* flag mask value */
184 static const struct opt_map opt_map[] = {
185 /* These flags are parsed by mount, not lustre */
186 { "defaults", 0, 0, 0 }, /* default options */
187 { "rw", 1, 1, MS_RDONLY }, /* read-write */
188 { "ro", 0, 0, MS_RDONLY }, /* read-only */
189 { "exec", 0, 1, MS_NOEXEC }, /* permit execution of binaries */
190 { "noexec", 0, 0, MS_NOEXEC }, /* don't execute binaries */
191 { "suid", 0, 1, MS_NOSUID }, /* honor suid executables */
192 { "nosuid", 0, 0, MS_NOSUID }, /* don't honor suid executables */
193 { "dev", 0, 1, MS_NODEV }, /* interpret device files */
194 { "nodev", 0, 0, MS_NODEV }, /* don't interpret devices */
195 { "async", 0, 1, MS_SYNCHRONOUS}, /* asynchronous I/O */
196 { "auto", 0, 0, 0 }, /* Can be mounted using -a */
197 { "noauto", 0, 0, 0 }, /* Can only be mounted explicitly */
198 { "nousers", 0, 1, 0 }, /* Forbid ordinary user to mount */
199 { "nouser", 0, 1, 0 }, /* Forbid ordinary user to mount */
200 { "noowner", 0, 1, 0 }, /* Device owner has no special privs */
201 { "_netdev", 0, 0, 0 }, /* Device accessible only via network */
202 /* These strings are passed through and parsed in lustre ll_options */
203 { "flock", 0, 0, 0 }, /* Enable flock support */
204 { "noflock", 1, 1, 0 }, /* Disable flock support */
205 { "user_xattr", 0, 0, 0 }, /* Enable get/set user xattr */
206 { "nouser_xattr", 1, 1, 0 }, /* Disable user xattr */
207 { "acl", 0, 0, 0 }, /* Enable ACL support */
208 { "noacl", 1, 1, 0 }, /* Disable ACL support */
209 { "nosvc", 0, 0, 0 }, /* Only start MGS/MGC, nothing else */
210 { "exclude", 0, 0, 0 }, /* OST exclusion list */
213 /****************************************************************************/
215 /* 1 = found, flag set
216 0 = found, no flag set
217 -1 = not found in above list */
218 static int parse_one_option(const char *check, int *flagp)
220 const struct opt_map *opt;
222 for (opt = &opt_map[0]; opt->opt != NULL; opt++) {
223 if (strncmp(check, opt->opt, strlen(opt->opt)) == 0) {
227 *flagp &= ~(opt->mask);
233 fprintf(stderr, "%s: ignoring unknown option '%s'\n", progname,
238 int parse_options(char *orig_options, int *flagp)
240 char *options, *opt, *nextopt;
242 options = calloc(strlen(orig_options) + 1, 1);
244 nextopt = orig_options;
245 while ((opt = strsep(&nextopt, ","))) {
249 if (parse_one_option(opt, flagp) == 0) {
250 /* no mount flags set, so pass this on as an option */
252 strcat(options, ",");
253 strcat(options, opt);
256 /* options will always be <= orig_options */
257 strcpy(orig_options, options);
263 int main(int argc, char *const argv[])
265 char default_options[] = "";
266 char *source, *target, *options = default_options, *optcopy;
267 int i, nargs = 3, opt, rc, flags, optlen;
268 static struct option long_opt[] = {
272 {"nomtab", 0, 0, 'n'},
273 {"options", 1, 0, 'o'},
274 {"verbose", 0, 0, 'v'},
278 progname = strrchr(argv[0], '/');
279 progname = progname ? progname + 1 : argv[0];
281 while ((opt = getopt_long(argc, argv, "fhno:v",
282 long_opt, NULL)) != EOF){
286 printf("force: %d\n", force);
291 printf("fake: %d\n", fake);
299 printf("nomtab: %d\n", nomtab);
308 printf("verbose: %d\n", verbose);
312 fprintf(stderr, "%s: unknown option '%c'\n",
319 if (optind + 2 > argc) {
320 fprintf(stderr, "%s: too few arguments\n", progname);
324 source = convert_hostnames(argv[optind]);
325 target = argv[optind + 1];
332 for (i = 0; i < argc; i++)
333 printf("arg[%d] = %s\n", i, argv[i]);
334 printf("source = %s, target = %s\n", source, target);
337 if (!force && check_mtab_entry(source, target, "lustre"))
340 rc = parse_options(options, &flags);
342 fprintf(stderr, "%s: can't parse options: %s\n",
347 rc = access(target, F_OK);
350 fprintf(stderr, "%s: %s inaccessible: %s\n", progname, target,
355 /* In Linux 2.4, the target device doesn't get passed to any of our
356 functions. So we'll stick it on the end of the options. */
357 optlen = strlen(options) + strlen(",device=") + strlen(source) + 1;
358 optcopy = malloc(optlen);
359 strcpy(optcopy, options);
361 strcat(optcopy, ",");
362 strcat(optcopy, "device=");
363 strcat(optcopy, source);
366 printf("mounting device %s at %s, flags=%#x options=%s\n",
367 source, target, flags, optcopy);
370 /* flags and target get to lustre_get_sb, but not
371 lustre_fill_super. Lustre ignores the flags, but mount
373 rc = mount(source, target, "lustre", flags, (void *)optcopy);
376 fprintf(stderr, "%s: mount(%s, %s) failed: %s\n", progname,
377 source, target, strerror(errno));
379 fprintf(stderr, "Are the lustre modules loaded?\n"
380 "Check /etc/modules.conf and /proc/filesystems\n");
381 if (errno == ENOTBLK)
382 fprintf(stderr,"Does this filesystem have any OSTs?\n");
384 fprintf(stderr,"Is the mgs specification correct? "
387 } else if (!nomtab) {
388 rc = update_mtab_entry(source, target, "lustre", options,0,0,0);