2 * nfsmount.c -- Linux NFS mount
3 * Copyright (C) 1993 Rick Sladkey <jrs@world.std.com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * Wed Feb 8 12:51:48 1995, biro@yggdrasil.com (Ross Biro): allow all port
16 * numbers to be specified on the command line.
18 * Fri, 8 Mar 1996 18:01:39, Swen Thuemmler <swen@uni-paderborn.de>:
19 * Omit the call to connect() for Linux version 1.3.11 or later.
21 * Wed Oct 1 23:55:28 1997: Dick Streefland <dick_streefland@tasking.com>
22 * Implemented the "bg", "fg" and "retry" mount options for NFS.
24 * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
25 * - added Native Language Support
27 * Modified by Olaf Kirch and Trond Myklebust for new NFS code,
30 * 2006-06-06 Amit Gud <agud@redhat.com>
31 * - Moved with modifcations to nfs-utils/utils/mount from util-linux/mount.
35 * nfsmount.c,v 1.1.1.1 1993/11/18 08:40:51 jrs Exp
51 #include <rpc/pmap_prot.h>
52 #include <rpc/pmap_clnt.h>
53 #include <sys/socket.h>
56 #include <netinet/in.h>
57 #include <arpa/inet.h>
59 #include <sys/mount.h>
65 #include "nfs_mount.h"
66 #include "mount_constants.h"
78 #ifndef HAVE_INET_ATON
79 #define inet_aton(a,b) (0)
82 typedef dirpath mnt2arg_t;
83 typedef dirpath mnt3arg_t;
84 typedef dirpath mntarg_t;
86 typedef struct fhstatus mnt2res_t;
87 typedef struct mountres3 mnt3res_t;
93 extern int nfs_mount_data_version;
94 extern char *progname;
98 extern int linux_version_code(void);
100 static inline enum clnt_stat
101 nfs3_mount(CLIENT *clnt, mnt3arg_t *mnt3arg, mnt3res_t *mnt3res)
103 return clnt_call(clnt, MOUNTPROC3_MNT,
104 (xdrproc_t) xdr_dirpath, (caddr_t) mnt3arg,
105 (xdrproc_t) xdr_mountres3, (caddr_t) mnt3res,
109 static inline enum clnt_stat
110 nfs2_mount(CLIENT *clnt, mnt2arg_t *mnt2arg, mnt2res_t *mnt2res)
112 return clnt_call(clnt, MOUNTPROC_MNT,
113 (xdrproc_t) xdr_dirpath, (caddr_t) mnt2arg,
114 (xdrproc_t) xdr_fhstatus, (caddr_t) mnt2res,
119 nfs_call_mount(clnt_addr_t *mnt_server, clnt_addr_t *nfs_server,
120 mntarg_t *mntarg, mntres_t *mntres)
126 if (!probe_bothports(mnt_server, nfs_server))
129 clnt = mnt_openclnt(mnt_server, &msock);
132 /* make pointers in xdr_mountres3 NULL so
133 * that xdr_array allocates memory for us
135 memset(mntres, 0, sizeof(*mntres));
136 switch (mnt_server->pmap.pm_vers) {
138 stat = nfs3_mount(clnt, mntarg, &mntres->nfsv3);
142 stat = nfs2_mount(clnt, mntarg, &mntres->nfsv2);
147 if (stat != RPC_SUCCESS) {
148 clnt_geterr(clnt, &rpc_createerr.cf_error);
149 rpc_createerr.cf_stat = stat;
151 mnt_closeclnt(clnt, msock);
152 if (stat == RPC_SUCCESS)
159 parse_options(char *old_opts, struct nfs_mount_data *data,
160 int *bg, int *retry, clnt_addr_t *mnt_server,
161 clnt_addr_t *nfs_server, char *new_opts, const int opt_size)
163 struct sockaddr_in *mnt_saddr = &mnt_server->saddr;
164 struct pmap *mnt_pmap = &mnt_server->pmap;
165 struct pmap *nfs_pmap = &nfs_server->pmap;
167 char *opt, *opteq, *p, *opt_b;
168 char *mounthost = NULL;
175 len = strlen(new_opts);
176 for (p=old_opts, opt_b=NULL; p && *p; p++) {
178 opt_b = p; /* begin of the option item */
180 open_quote ^= 1; /* reverse the status */
182 continue; /* still in a quoted block */
184 *p = '\0'; /* terminate the option item */
185 if (*p == '\0' || *(p+1) == '\0') {
186 opt = opt_b; /* opt is useful now */
190 continue; /* still somewhere in the option item */
192 if (strlen(opt) >= sizeof(cbuf))
194 if ((opteq = strchr(opt, '=')) && isdigit(opteq[1])) {
195 int val = atoi(opteq + 1);
197 if (!strcmp(opt, "rsize"))
199 else if (!strcmp(opt, "wsize"))
201 else if (!strcmp(opt, "timeo"))
203 else if (!strcmp(opt, "retrans"))
205 else if (!strcmp(opt, "acregmin"))
206 data->acregmin = val;
207 else if (!strcmp(opt, "acregmax"))
208 data->acregmax = val;
209 else if (!strcmp(opt, "acdirmin"))
210 data->acdirmin = val;
211 else if (!strcmp(opt, "acdirmax"))
212 data->acdirmax = val;
213 else if (!strcmp(opt, "actimeo")) {
214 data->acregmin = val;
215 data->acregmax = val;
216 data->acdirmin = val;
217 data->acdirmax = val;
219 else if (!strcmp(opt, "retry"))
221 else if (!strcmp(opt, "port"))
222 nfs_pmap->pm_port = val;
223 else if (!strcmp(opt, "mountport"))
224 mnt_pmap->pm_port = val;
225 else if (!strcmp(opt, "mountprog"))
226 mnt_pmap->pm_prog = val;
227 else if (!strcmp(opt, "mountvers"))
228 mnt_pmap->pm_vers = val;
229 else if (!strcmp(opt, "mounthost"))
230 mounthost=xstrndup(opteq+1, strcspn(opteq+1," \t\n\r,"));
231 else if (!strcmp(opt, "nfsprog"))
232 nfs_pmap->pm_prog = val;
233 else if (!strcmp(opt, "nfsvers") ||
234 !strcmp(opt, "vers")) {
235 nfs_pmap->pm_vers = val;
237 #if NFS_MOUNT_VERSION >= 2
238 } else if (!strcmp(opt, "namlen")) {
239 if (nfs_mount_data_version >= 2)
246 } else if (!strcmp(opt, "addr")) {
253 sprintf(cbuf, "%s=%s,", opt, opteq+1);
256 if (!strcmp(opt, "proto")) {
257 if (!strcmp(opteq+1, "udp")) {
258 nfs_pmap->pm_prot = IPPROTO_UDP;
259 mnt_pmap->pm_prot = IPPROTO_UDP;
260 #if NFS_MOUNT_VERSION >= 2
261 data->flags &= ~NFS_MOUNT_TCP;
262 } else if (!strcmp(opteq+1, "tcp") &&
263 nfs_mount_data_version > 2) {
264 nfs_pmap->pm_prot = IPPROTO_TCP;
265 mnt_pmap->pm_prot = IPPROTO_TCP;
266 data->flags |= NFS_MOUNT_TCP;
272 #if NFS_MOUNT_VERSION >= 5
273 } else if (!strcmp(opt, "sec")) {
274 char *secflavor = opteq+1;
276 if (nfs_mount_data_version < 5) {
277 printf(_("Warning: ignoring sec=%s option\n"),
280 } else if (!strcmp(secflavor, "none"))
281 data->pseudoflavor = AUTH_NONE;
282 else if (!strcmp(secflavor, "sys"))
283 data->pseudoflavor = AUTH_SYS;
284 else if (!strcmp(secflavor, "krb5"))
285 data->pseudoflavor = AUTH_GSS_KRB5;
286 else if (!strcmp(secflavor, "krb5i"))
287 data->pseudoflavor = AUTH_GSS_KRB5I;
288 else if (!strcmp(secflavor, "krb5p"))
289 data->pseudoflavor = AUTH_GSS_KRB5P;
290 else if (!strcmp(secflavor, "lipkey"))
291 data->pseudoflavor = AUTH_GSS_LKEY;
292 else if (!strcmp(secflavor, "lipkey-i"))
293 data->pseudoflavor = AUTH_GSS_LKEYI;
294 else if (!strcmp(secflavor, "lipkey-p"))
295 data->pseudoflavor = AUTH_GSS_LKEYP;
296 else if (!strcmp(secflavor, "spkm3"))
297 data->pseudoflavor = AUTH_GSS_SPKM;
298 else if (!strcmp(secflavor, "spkm3i"))
299 data->pseudoflavor = AUTH_GSS_SPKMI;
300 else if (!strcmp(secflavor, "spkm3p"))
301 data->pseudoflavor = AUTH_GSS_SPKMP;
305 printf(_("Warning: Unrecognized security flavor %s.\n"),
309 data->flags |= NFS_MOUNT_SECFLAVOUR;
311 } else if (!strcmp(opt, "mounthost"))
312 mounthost=xstrndup(opteq+1,
313 strcspn(opteq+1," \t\n\r,"));
314 else if (!strcmp(opt, "context")) {
315 char *context = opteq + 1;
316 int ctxlen = strlen(context);
318 if (ctxlen > NFS_MAX_CONTEXT_LEN) {
319 nfs_error(_("context parameter exceeds"
321 NFS_MAX_CONTEXT_LEN);
324 /* The context string is in the format of
325 * "system_u:object_r:...". We only want
326 * the context str between the quotes.
329 strncpy(data->context, context+1,
332 strncpy(data->context, context,
333 NFS_MAX_CONTEXT_LEN);
338 sprintf(cbuf, "%s=%s,", opt, opteq+1);
341 if (!strncmp(opt, "no", 2)) {
345 if (!strcmp(opt, "bg"))
347 else if (!strcmp(opt, "fg"))
349 else if (!strcmp(opt, "soft")) {
350 data->flags &= ~NFS_MOUNT_SOFT;
352 data->flags |= NFS_MOUNT_SOFT;
353 } else if (!strcmp(opt, "hard")) {
354 data->flags &= ~NFS_MOUNT_SOFT;
356 data->flags |= NFS_MOUNT_SOFT;
357 } else if (!strcmp(opt, "intr")) {
358 data->flags &= ~NFS_MOUNT_INTR;
360 data->flags |= NFS_MOUNT_INTR;
361 } else if (!strcmp(opt, "posix")) {
362 data->flags &= ~NFS_MOUNT_POSIX;
364 data->flags |= NFS_MOUNT_POSIX;
365 } else if (!strcmp(opt, "cto")) {
366 data->flags &= ~NFS_MOUNT_NOCTO;
368 data->flags |= NFS_MOUNT_NOCTO;
369 } else if (!strcmp(opt, "ac")) {
370 data->flags &= ~NFS_MOUNT_NOAC;
372 data->flags |= NFS_MOUNT_NOAC;
373 #if NFS_MOUNT_VERSION >= 2
374 } else if (!strcmp(opt, "tcp")) {
375 data->flags &= ~NFS_MOUNT_TCP;
377 if (nfs_mount_data_version < 2)
379 nfs_pmap->pm_prot = IPPROTO_TCP;
380 mnt_pmap->pm_prot = IPPROTO_TCP;
381 data->flags |= NFS_MOUNT_TCP;
383 mnt_pmap->pm_prot = IPPROTO_UDP;
384 nfs_pmap->pm_prot = IPPROTO_UDP;
386 } else if (!strcmp(opt, "udp")) {
387 data->flags &= ~NFS_MOUNT_TCP;
389 if (nfs_mount_data_version < 2)
391 nfs_pmap->pm_prot = IPPROTO_TCP;
392 mnt_pmap->pm_prot = IPPROTO_TCP;
393 data->flags |= NFS_MOUNT_TCP;
395 nfs_pmap->pm_prot = IPPROTO_UDP;
396 mnt_pmap->pm_prot = IPPROTO_UDP;
399 #if NFS_MOUNT_VERSION >= 3
400 } else if (!strcmp(opt, "lock")) {
401 data->flags &= ~NFS_MOUNT_NONLM;
403 if (nfs_mount_data_version < 3)
405 data->flags |= NFS_MOUNT_NONLM;
408 #if NFS_MOUNT_VERSION >= 4
409 } else if (!strcmp(opt, "broken_suid")) {
410 data->flags &= ~NFS_MOUNT_BROKEN_SUID;
412 if (nfs_mount_data_version < 4)
414 data->flags |= NFS_MOUNT_BROKEN_SUID;
416 } else if (!strcmp(opt, "acl")) {
417 data->flags &= ~NFS_MOUNT_NOACL;
419 data->flags |= NFS_MOUNT_NOACL;
420 } else if (!strcmp(opt, "rdirplus")) {
421 data->flags &= ~NFS_MOUNT_NORDIRPLUS;
423 data->flags |= NFS_MOUNT_NORDIRPLUS;
424 } else if (!strcmp(opt, "sharecache")) {
425 data->flags &= ~NFS_MOUNT_UNSHARED;
427 data->flags |= NFS_MOUNT_UNSHARED;
433 nfs_error(_("%s: Unsupported nfs mount option:"
435 val ? "" : "no", opt);
438 sprintf(cbuf, val ? "%s," : "no%s,", opt);
441 if (len >= opt_size) {
442 nfs_error(_("%s: excessively long option argument"),
446 strcat(new_opts, cbuf);
448 /* See if the nfs host = mount host. */
450 if (!nfs_gethostbyname(mounthost, mnt_saddr))
452 *mnt_server->hostname = mounthost;
456 nfs_error(_("%s: Bad nfs mount parameter: %s\n"), progname, opt);
461 static int nfsmnt_check_compat(const struct pmap *nfs_pmap,
462 const struct pmap *mnt_pmap)
464 unsigned int max_nfs_vers = (nfs_mount_data_version >= 4) ? 3 : 2;
465 unsigned int max_mnt_vers = (nfs_mount_data_version >= 4) ? 3 : 2;
467 if (nfs_pmap->pm_vers == 4) {
468 nfs_error(_("%s: Please use '-t nfs4' "
469 "instead of '-o vers=4'"), progname);
473 if (nfs_pmap->pm_vers) {
474 if (nfs_pmap->pm_vers > max_nfs_vers || nfs_pmap->pm_vers < 2) {
475 nfs_error(_("%s: NFS version %ld is not supported"),
476 progname, nfs_pmap->pm_vers);
481 if (mnt_pmap->pm_vers > max_mnt_vers) {
482 nfs_error(_("%s: NFS mount version %ld is not supported"),
483 progname, mnt_pmap->pm_vers);
494 nfsmount(const char *spec, const char *node, int flags,
495 char **extra_opts, int fake, int running_bg)
497 static char *prev_bg_host;
499 char *hostname, *dirname, *old_opts, *mounthost = NULL;
500 char new_opts[1024], cbuf[1024];
501 static struct nfs_mount_data data;
503 static int doonce = 0;
505 clnt_addr_t mnt_server = { &mounthost, };
506 clnt_addr_t nfs_server = { &hostname, };
507 struct sockaddr_in *nfs_saddr = &nfs_server.saddr;
508 struct pmap *mnt_pmap = &mnt_server.pmap,
509 *nfs_pmap = &nfs_server.pmap;
510 struct pmap save_mnt, save_nfs;
519 int retval = EX_FAIL;
524 if (strlen(spec) >= sizeof(hostdir)) {
525 nfs_error(_("%s: excessively long host:dir argument"),
529 strcpy(hostdir, spec);
530 if ((s = strchr(hostdir, ':'))) {
534 /* Ignore all but first hostname in replicated mounts
535 until they can be fully supported. (mack@sgi.com) */
536 if ((s = strchr(hostdir, ','))) {
538 nfs_error(_("%s: warning: "
539 "multiple hostnames not supported"),
543 nfs_error(_("%s: directory to mount not in host:dir format"),
548 if (!nfs_gethostbyname(hostname, nfs_saddr))
550 mounthost = hostname;
551 memcpy (&mnt_server.saddr, nfs_saddr, sizeof (mnt_server.saddr));
553 /* add IP address to mtab options for use when unmounting */
555 s = inet_ntoa(nfs_saddr->sin_addr);
556 old_opts = *extra_opts;
560 /* Set default options.
561 * rsize/wsize (and bsize, for ver >= 3) are left 0 in order to
562 * let the kernel decide.
563 * timeo is filled in after we know whether it'll be TCP or UDP. */
564 memset(&data, 0, sizeof(data));
569 #if NFS_MOUNT_VERSION >= 2
570 data.namlen = NAME_MAX;
574 retry = 10000; /* 10000 minutes ~ 1 week */
576 memset(mnt_pmap, 0, sizeof(*mnt_pmap));
577 mnt_pmap->pm_prog = MOUNTPROG;
578 memset(nfs_pmap, 0, sizeof(*nfs_pmap));
579 nfs_pmap->pm_prog = NFS_PROGRAM;
583 if (!parse_options(old_opts, &data, &bg, &retry, &mnt_server, &nfs_server,
584 new_opts, sizeof(new_opts)))
586 if (!nfsmnt_check_compat(nfs_pmap, mnt_pmap))
589 if (retry == 10000 && !bg)
590 retry = 2; /* reset for fg mounts */
592 #ifdef NFS_MOUNT_DEBUG
593 printf(_("rsize = %d, wsize = %d, timeo = %d, retrans = %d\n"),
594 data.rsize, data.wsize, data.timeo, data.retrans);
595 printf(_("acreg (min, max) = (%d, %d), acdir (min, max) = (%d, %d)\n"),
596 data.acregmin, data.acregmax, data.acdirmin, data.acdirmax);
597 printf(_("port = %lu, bg = %d, retry = %d, flags = %.8x\n"),
598 nfs_pmap->pm_port, bg, retry, data.flags);
599 printf(_("mountprog = %lu, mountvers = %lu, nfsprog = %lu, nfsvers = %lu\n"),
600 mnt_pmap->pm_prog, mnt_pmap->pm_vers,
601 nfs_pmap->pm_prog, nfs_pmap->pm_vers);
602 printf(_("soft = %d, intr = %d, posix = %d, nocto = %d, noac = %d"),
603 (data.flags & NFS_MOUNT_SOFT) != 0,
604 (data.flags & NFS_MOUNT_INTR) != 0,
605 (data.flags & NFS_MOUNT_POSIX) != 0,
606 (data.flags & NFS_MOUNT_NOCTO) != 0,
607 (data.flags & NFS_MOUNT_NOAC) != 0);
608 #if NFS_MOUNT_VERSION >= 2
609 printf(_(", tcp = %d"),
610 (data.flags & NFS_MOUNT_TCP) != 0);
612 #if NFS_MOUNT_VERSION >= 4
613 printf(_(", noacl = %d"), (data.flags & NFS_MOUNT_NOACL) != 0);
615 #if NFS_MOUNT_VERSION >= 5
616 printf(_(", sec = %u"), data.pseudoflavor);
617 printf(_(", readdirplus = %d"), (data.flags & NFS_MOUNT_NORDIRPLUS) != 0);
622 data.version = nfs_mount_data_version;
624 if (flags & MS_REMOUNT)
628 * If the previous mount operation on the same host was
629 * backgrounded, and the "bg" for this mount is also set,
630 * give up immediately, to avoid the initial timeout.
632 if (bg && !running_bg &&
633 prev_bg_host && strcmp(hostname, prev_bg_host) == 0) {
639 /* create mount deamon client */
642 * The following loop implements the mount retries. On the first
643 * call, "running_bg" is 0. When the mount times out, and the
644 * "bg" option is set, the exit status EX_BG will be returned.
645 * For a backgrounded mount, there will be a second call by the
646 * child process with "running_bg" set to 1.
648 * The case where the mount point is not present and the "bg"
649 * option is set, is treated as a timeout. This is done to
650 * support nested mounts.
652 * The "retry" count specified by the user is the number of
653 * minutes to retry before giving up.
655 * Only the first error message will be displayed.
657 timeout = time(NULL) + 60 * retry;
662 memcpy(&save_nfs, nfs_pmap, sizeof(save_nfs));
663 memcpy(&save_mnt, mnt_pmap, sizeof(save_mnt));
665 if (bg && stat(node, &statbuf) == -1) {
666 /* no mount point yet - sleep */
668 sleep(val); /* 1, 2, 4, 8, 16, 30, ... */
675 /* be careful not to use too many CPU cycles */
679 stat = nfs_call_mount(&mnt_server, &nfs_server,
683 memcpy(nfs_pmap, &save_nfs, sizeof(*nfs_pmap));
684 memcpy(mnt_pmap, &save_mnt, sizeof(*mnt_pmap));
688 switch(rpc_createerr.cf_stat){
691 case RPC_SYSTEMERROR:
692 if (errno == ETIMEDOUT)
695 rpc_mount_errors(*nfs_server.hostname, 0, bg);
700 rpc_mount_errors(*nfs_server.hostname, 0, bg);
703 rpc_mount_errors(*nfs_server.hostname, 1, bg);
707 prev_bg_host = xstrdup(hostname);
714 rpc_mount_errors(*nfs_server.hostname, 0, bg);
718 rpc_mount_errors(*nfs_server.hostname, 1, bg);
721 if (mnt_pmap->pm_vers <= 2) {
722 if (mntres.nfsv2.fhs_status != 0) {
723 nfs_error(_("%s: %s:%s failed, reason given by server: %s"),
724 progname, hostname, dirname,
725 nfs_strerror(mntres.nfsv2.fhs_status));
728 memcpy(data.root.data,
729 (char *) mntres.nfsv2.fhstatus_u.fhs_fhandle,
731 #if NFS_MOUNT_VERSION >= 4
732 data.root.size = NFS_FHSIZE;
733 memcpy(data.old_root.data,
734 (char *) mntres.nfsv2.fhstatus_u.fhs_fhandle,
738 #if NFS_MOUNT_VERSION >= 4
739 mountres3_ok *mountres;
741 int i, n_flavors, *flavor, yum = 0;
742 if (mntres.nfsv3.fhs_status != 0) {
743 nfs_error(_("%s: %s:%s failed, reason given by server: %s"),
744 progname, hostname, dirname,
745 nfs_strerror(mntres.nfsv3.fhs_status));
748 #if NFS_MOUNT_VERSION >= 5
749 mountres = &mntres.nfsv3.mountres3_u.mountinfo;
750 n_flavors = mountres->auth_flavors.auth_flavors_len;
754 flavor = mountres->auth_flavors.auth_flavors_val;
755 for (i = 0; i < n_flavors; ++i) {
757 * Per RFC2623, section 2.7, we should prefer the
758 * flavour listed first.
759 * If no flavour requested, use the first simple
760 * flavour that is offered.
762 if (! (data.flags & NFS_MOUNT_SECFLAVOUR) &&
763 (flavor[i] == AUTH_SYS ||
764 flavor[i] == AUTH_NONE)) {
765 data.pseudoflavor = flavor[i];
766 data.flags |= NFS_MOUNT_SECFLAVOUR;
768 if (flavor[i] == data.pseudoflavor)
770 #ifdef NFS_MOUNT_DEBUG
771 printf(_("auth flavor %d: %d\n"), i, flavor[i]);
775 nfs_error(_("%s: %s:%s failed, security flavor "
777 progname, hostname, dirname);
778 /* server has registered us in rmtab, send umount */
779 nfs_call_umount(&mnt_server, &dirname);
784 fhandle = &mntres.nfsv3.mountres3_u.mountinfo.fhandle;
785 memset(data.old_root.data, 0, NFS_FHSIZE);
786 memset(&data.root, 0, sizeof(data.root));
787 data.root.size = fhandle->fhandle3_len;
788 memcpy(data.root.data,
789 (char *) fhandle->fhandle3_val,
790 fhandle->fhandle3_len);
792 data.flags |= NFS_MOUNT_VER3;
796 if (nfs_mount_data_version == 1) {
797 /* create nfs socket for kernel */
798 if (nfs_pmap->pm_prot == IPPROTO_TCP)
799 fsock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
801 fsock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
803 perror(_("nfs socket"));
806 if (bindresvport(fsock, 0) < 0) {
807 perror(_("nfs bindresvport"));
812 #ifdef NFS_MOUNT_DEBUG
813 printf(_("using port %lu for nfs deamon\n"), nfs_pmap->pm_port);
815 nfs_saddr->sin_port = htons(nfs_pmap->pm_port);
817 * connect() the socket for kernels 1.3.10 and below only,
818 * to avoid problems with multihomed hosts.
821 if (linux_version_code() <= 0x01030a && fsock != -1
822 && connect(fsock, (struct sockaddr *) nfs_saddr,
823 sizeof (*nfs_saddr)) < 0) {
824 perror(_("nfs connect"));
828 #if NFS_MOUNT_VERSION >= 2
829 if (nfs_pmap->pm_prot == IPPROTO_TCP)
830 data.flags |= NFS_MOUNT_TCP;
832 data.flags &= ~NFS_MOUNT_TCP;
835 /* prepare data structure for kernel */
838 memcpy((char *) &data.addr, (char *) nfs_saddr, sizeof(data.addr));
839 strncpy(data.hostname, hostname, sizeof(data.hostname));
842 /* Ensure we have enough padding for the following strcat()s */
843 if (strlen(new_opts) + strlen(s) + 30 >= sizeof(new_opts)) {
844 nfs_error(_("%s: excessively long option argument"),
849 snprintf(cbuf, sizeof(cbuf)-1, "addr=%s", s);
850 strcat(new_opts, cbuf);
852 *extra_opts = xstrdup(new_opts);
854 if (!fake && !(data.flags & NFS_MOUNT_NONLM)) {
855 if (!start_statd()) {
856 nfs_error(_("%s: rpc.statd is not running but is "
857 "required for remote locking.\n"
858 " Either use '-o nolock' to keep "
859 "locks local, or start statd."),
866 if (mount(spec, node, "nfs",
867 flags & ~(MS_USER|MS_USERS), &data)) {
868 mount_error(spec, node, errno);