2 * Copyright (c) 1992, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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 the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#) Copyright (c) 1992, 1993, 1994 The Regents of the University of California. All rights reserved.
37 * @(#)mount_nfs.c 8.11 (Berkeley) 5/4/95
38 * $FreeBSD: src/sbin/mount_nfs/mount_nfs.c,v 1.36.2.6 2003/05/13 14:45:40 trhodes Exp $
39 * $DragonFly: src/sbin/mount_nfs/mount_nfs.c,v 1.3 2003/08/05 07:45:42 asmodai Exp $
42 #include <sys/param.h>
43 #include <sys/mount.h>
45 #include <sys/syslog.h>
48 #include <rpc/pmap_clnt.h>
49 #include <rpc/pmap_prot.h>
51 #include <nfs/rpcv2.h>
52 #include <nfs/nfsproto.h>
54 #include <nfs/nqnfs.h>
56 #include <arpa/inet.h>
72 #define ALTF_NOCONN 0x2
73 #define ALTF_DUMBTIMR 0x4
75 #define ALTF_KERB 0x10
76 #define ALTF_NFSV3 0x20
77 #define ALTF_RDIRPLUS 0x40
78 #define ALTF_MNTUDP 0x80
79 #define ALTF_RESVPORT 0x100
80 #define ALTF_SEQPACKET 0x200
81 #define ALTF_NQNFS 0x400
82 #define ALTF_SOFT 0x800
83 #define ALTF_TCP 0x1000
84 #define ALTF_PORT 0x2000
85 #define ALTF_NFSV2 0x4000
86 #define ALTF_ACREGMIN 0x8000
87 #define ALTF_ACREGMAX 0x10000
88 #define ALTF_ACDIRMIN 0x20000
89 #define ALTF_ACDIRMAX 0x40000
91 struct mntopt mopts[] = {
96 { "bg", 0, ALTF_BG, 1 },
97 { "conn", 1, ALTF_NOCONN, 1 },
98 { "dumbtimer", 0, ALTF_DUMBTIMR, 1 },
99 { "intr", 0, ALTF_INTR, 1 },
101 { "kerb", 0, ALTF_KERB, 1 },
103 { "nfsv3", 0, ALTF_NFSV3, 1 },
104 { "rdirplus", 0, ALTF_RDIRPLUS, 1 },
105 { "mntudp", 0, ALTF_MNTUDP, 1 },
106 { "resvport", 0, ALTF_RESVPORT, 1 },
107 { "nqnfs", 0, ALTF_NQNFS, 1 },
108 { "soft", 0, ALTF_SOFT, 1 },
109 { "tcp", 0, ALTF_TCP, 1 },
110 { "port=", 0, ALTF_PORT, 1 },
111 { "nfsv2", 0, ALTF_NFSV2, 1 },
112 { "acregmin=", 0, ALTF_ACREGMIN, 1 },
113 { "acregmax=", 0, ALTF_ACREGMAX, 1 },
114 { "acdirmin=", 0, ALTF_ACDIRMIN, 1 },
115 { "acdirmax=", 0, ALTF_ACDIRMAX, 1 },
119 struct nfs_args nfsdefargs = {
121 (struct sockaddr *)0,
122 sizeof (struct sockaddr_in),
150 u_char nfh[NFSX_V3FHMAX];
156 int nfsproto = IPPROTO_UDP;
167 char realm[REALM_SZ];
172 struct nfsrpc_nickverf kverf;
173 struct nfsrpc_fullblock kin, kout;
177 NFSKERBKEYSCHED_T kerb_keysched;
180 /* Return codes for nfs_tryproto. */
183 TRYRET_TIMEOUT, /* No response received. */
184 TRYRET_REMOTEERR, /* Error received from remote server. */
185 TRYRET_LOCALERR /* Local failure. */
188 int getnfsargs __P((char *, struct nfs_args *));
189 void set_rpc_maxgrouplist __P((int));
190 void usage __P((void)) __dead2;
191 int xdr_dir __P((XDR *, char *));
192 int xdr_fh __P((XDR *, struct nfhret *));
193 enum tryret nfs_tryproto(struct nfs_args *nfsargsp, struct sockaddr_in *sin,
194 char *hostp, char *spec, char **errstr);
195 enum tryret returncode(enum clnt_stat stat, struct rpc_err *rpcerr);
198 * Used to set mount flags with getmntopts. Call with dir=TRUE to
199 * initialize altflags from the current mount flags. Call with
200 * dir=FALSE to update mount flags with the new value of altflags after
201 * the call to getmntopts.
204 set_flags(int* altflags, int* nfsflags, int dir)
208 if (*nfsflags & NFSMNT_##nf) \
209 *altflags |= ALTF_##af; \
211 *altflags &= ~ALTF_##af; \
213 if (*altflags & ALTF_##af) \
214 *nfsflags |= NFSMNT_##nf; \
216 *nfsflags &= ~NFSMNT_##nf; \
245 register struct nfs_args *nfsargsp;
246 struct nfs_args nfsargs;
247 struct nfsd_cargs ncd;
248 int mntflags, altflags, nfssvc_flag, num;
249 char *name, *p, *spec;
250 char mntpath[MAXPATHLEN];
257 (void)strcpy(realm, KRB_REALM);
258 if (sizeof (struct nfsrpc_nickverf) != RPCX_NICKVERF ||
259 sizeof (struct nfsrpc_fullblock) != RPCX_FULLBLOCK ||
260 ((char *)&ktick.kt) - ((char *)&ktick) != NFSX_UNSIGNED ||
261 ((char *)ktick.kt.dat) - ((char *)&ktick) != 2 * NFSX_UNSIGNED)
262 fprintf(stderr, "Yikes! NFSKERB structs not packed!!\n");
267 nfsargs = nfsdefargs;
269 while ((c = getopt(argc, argv,
270 "23a:bcdD:g:I:iKL:lm:No:PqR:r:sTt:w:x:U")) != -1)
279 num = strtol(optarg, &p, 10);
281 errx(1, "illegal -a value -- %s", optarg);
282 nfsargsp->readahead = num;
283 nfsargsp->flags |= NFSMNT_READAHEAD;
289 nfsargsp->flags |= NFSMNT_NOCONN;
292 num = strtol(optarg, &p, 10);
294 errx(1, "illegal -D value -- %s", optarg);
295 nfsargsp->deadthresh = num;
296 nfsargsp->flags |= NFSMNT_DEADTHRESH;
299 nfsargsp->flags |= NFSMNT_DUMBTIMR;
302 num = strtol(optarg, &p, 10);
304 errx(1, "illegal -g value -- %s", optarg);
305 set_rpc_maxgrouplist(num);
306 nfsargsp->maxgrouplist = num;
307 nfsargsp->flags |= NFSMNT_MAXGRPS;
310 num = strtol(optarg, &p, 10);
312 errx(1, "illegal -I value -- %s", optarg);
313 nfsargsp->readdirsize = num;
314 nfsargsp->flags |= NFSMNT_READDIRSIZE;
317 nfsargsp->flags |= NFSMNT_INT;
321 nfsargsp->flags |= NFSMNT_KERB;
325 num = strtol(optarg, &p, 10);
327 errx(1, "illegal -L value -- %s", optarg);
328 nfsargsp->leaseterm = num;
329 nfsargsp->flags |= NFSMNT_LEASETERM;
332 nfsargsp->flags |= NFSMNT_RDIRPLUS;
336 (void)strncpy(realm, optarg, REALM_SZ - 1);
337 realm[REALM_SZ - 1] = '\0';
341 nfsargsp->flags &= ~NFSMNT_RESVPORT;
345 set_flags(&altflags, &nfsargsp->flags, TRUE);
347 altflags |= ALTF_NFSV2;
348 else if (mountmode == V3)
349 altflags |= ALTF_NFSV3;
350 getmntopts(optarg, mopts, &mntflags, &altflags);
351 set_flags(&altflags, &nfsargsp->flags, FALSE);
353 * Handle altflags which don't map directly to
356 if(altflags & ALTF_BG)
358 if(altflags & ALTF_MNTUDP)
360 if(altflags & ALTF_TCP) {
361 nfsargsp->sotype = SOCK_STREAM;
362 nfsproto = IPPROTO_TCP;
364 if(altflags & ALTF_PORT)
365 port_no = atoi(strstr(optarg, "port=") + 5);
367 if(altflags & ALTF_NFSV2)
369 if(altflags & ALTF_NFSV3)
371 if(altflags & ALTF_ACREGMIN)
372 nfsargsp->acregmin = atoi(strstr(optarg,
374 if(altflags & ALTF_ACREGMAX)
375 nfsargsp->acregmax = atoi(strstr(optarg,
377 if(altflags & ALTF_ACDIRMIN)
378 nfsargsp->acdirmin = atoi(strstr(optarg,
380 if(altflags & ALTF_ACDIRMAX)
381 nfsargsp->acdirmax = atoi(strstr(optarg,
385 /* obsolete for NFSMNT_RESVPORT, now default */
389 nfsargsp->flags |= NFSMNT_NQNFS;
392 num = strtol(optarg, &p, 10);
394 errx(1, "illegal -R value -- %s", optarg);
398 num = strtol(optarg, &p, 10);
400 errx(1, "illegal -r value -- %s", optarg);
401 nfsargsp->rsize = num;
402 nfsargsp->flags |= NFSMNT_RSIZE;
405 nfsargsp->flags |= NFSMNT_SOFT;
408 nfsargsp->sotype = SOCK_STREAM;
409 nfsproto = IPPROTO_TCP;
412 num = strtol(optarg, &p, 10);
414 errx(1, "illegal -t value -- %s", optarg);
415 nfsargsp->timeo = num;
416 nfsargsp->flags |= NFSMNT_TIMEO;
419 num = strtol(optarg, &p, 10);
421 errx(1, "illegal -w value -- %s", optarg);
422 nfsargsp->wsize = num;
423 nfsargsp->flags |= NFSMNT_WSIZE;
426 num = strtol(optarg, &p, 10);
428 errx(1, "illegal -x value -- %s", optarg);
429 nfsargsp->retrans = num;
430 nfsargsp->flags |= NFSMNT_RETRANS;
451 /* The default is to keep retrying forever. */
453 if (!getnfsargs(spec, nfsargsp))
456 /* resolve the mountpoint with realpath(3) */
457 (void)checkpath(name, mntpath);
459 error = getvfsbyname("nfs", &vfc);
460 if (error && vfsisloadable("nfs")) {
462 err(EX_OSERR, "vfsload(nfs)");
463 endvfsent(); /* clear cache */
464 error = getvfsbyname("nfs", &vfc);
467 errx(EX_OSERR, "nfs filesystem is not available");
469 if (mount(vfc.vfc_name, mntpath, mntflags, nfsargsp))
470 err(1, "%s", mntpath);
471 if (nfsargsp->flags & (NFSMNT_NQNFS | NFSMNT_KERB)) {
472 if ((opflags & ISBGRND) == 0) {
473 if (daemon(0, 0) != 0)
476 openlog("mount_nfs", LOG_PID, LOG_DAEMON);
477 nfssvc_flag = NFSSVC_MNTD;
478 ncd.ncd_dirp = mntpath;
479 while (nfssvc(nfssvc_flag, (caddr_t)&ncd) < 0) {
480 if (errno != ENEEDAUTH) {
481 syslog(LOG_ERR, "nfssvc err %m");
485 NFSSVC_MNTD | NFSSVC_GOTAUTH | NFSSVC_AUTHINFAIL;
488 * Set up as ncd_authuid for the kerberos call.
489 * Must set ruid to ncd_authuid and reset the
490 * ticket name iff ncd_authuid is not the same
491 * as last time, so that the right ticket file
493 * Get the Kerberos credential structure so that
494 * we have the session key and get a ticket for
496 * For more info see the IETF Draft "Authentication
499 if (ncd.ncd_authuid != last_ruid) {
501 (void)sprintf(buf, "%s%d",
502 TKT_ROOT, ncd.ncd_authuid);
503 krb_set_tkt_string(buf);
504 last_ruid = ncd.ncd_authuid;
506 setreuid(ncd.ncd_authuid, 0);
507 kret = krb_get_cred(NFS_KERBSRV, inst, realm, &kcr);
508 if (kret == RET_NOTKT) {
509 kret = get_ad_tkt(NFS_KERBSRV, inst, realm,
511 if (kret == KSUCCESS)
512 kret = krb_get_cred(NFS_KERBSRV, inst, realm,
515 if (kret == KSUCCESS)
516 kret = krb_mk_req(&ktick.kt, NFS_KERBSRV, inst,
520 * Fill in the AKN_FULLNAME authenticator and verifier.
521 * Along with the Kerberos ticket, we need to build
522 * the timestamp verifier and encrypt it in CBC mode.
524 if (kret == KSUCCESS &&
525 ktick.kt.length <= (RPCAUTH_MAXSIZ-3*NFSX_UNSIGNED)
526 && gettimeofday(&ktv, (struct timezone *)0) == 0) {
527 ncd.ncd_authtype = RPCAUTH_KERB4;
528 ncd.ncd_authstr = (u_char *)&ktick;
529 ncd.ncd_authlen = nfsm_rndup(ktick.kt.length) +
531 ncd.ncd_verfstr = (u_char *)&kverf;
532 ncd.ncd_verflen = sizeof (kverf);
533 memmove(ncd.ncd_key, kcr.session,
534 sizeof (kcr.session));
535 kin.t1 = htonl(ktv.tv_sec);
536 kin.t2 = htonl(ktv.tv_usec);
537 kin.w1 = htonl(NFS_KERBTTL);
538 kin.w2 = htonl(NFS_KERBTTL - 1);
539 bzero((caddr_t)kivec, sizeof (kivec));
542 * Encrypt kin in CBC mode using the session
548 * Finally, fill the timestamp verifier into the
549 * authenticator and verifier.
551 ktick.kind = htonl(RPCAKN_FULLNAME);
552 kverf.kind = htonl(RPCAKN_FULLNAME);
553 NFS_KERBW1(ktick.kt) = kout.w1;
554 ktick.kt.length = htonl(ktick.kt.length);
555 kverf.verf.t1 = kout.t1;
556 kverf.verf.t2 = kout.t2;
557 kverf.verf.w2 = kout.w2;
558 nfssvc_flag = NFSSVC_MNTD | NFSSVC_GOTAUTH;
568 getnfsargs(spec, nfsargsp)
570 struct nfs_args *nfsargsp;
573 struct sockaddr_in saddr;
575 int speclen, remoteerr;
576 char *hostp, *delimp, *errstr;
581 static char nam[MNAMELEN + 1];
583 if ((delimp = strrchr(spec, ':')) != NULL) {
586 } else if ((delimp = strrchr(spec, '@')) != NULL) {
587 warnx("path@server syntax is deprecated, use server:path");
590 warnx("no <host>:<dirpath> nfs-name");
596 * If there has been a trailing slash at mounttime it seems
597 * that some mountd implementations fail to remove the mount
598 * entries from their mountlist while unmounting.
600 for (speclen = strlen(spec);
601 speclen > 1 && spec[speclen - 1] == '/';
603 spec[speclen - 1] = '\0';
604 if (strlen(hostp) + strlen(spec) + 1 > MNAMELEN) {
605 warnx("%s:%s: %s", hostp, spec, strerror(ENAMETOOLONG));
608 /* Make both '@' and ':' notations equal */
609 if (*hostp != '\0') {
611 memmove(nam, hostp, len);
613 memmove(nam + len + 1, spec, speclen);
614 nam[len + speclen + 1] = '\0';
618 * Handle an internet host address and reverse resolve it if
621 bzero(&saddr, sizeof saddr);
622 saddr.sin_family = AF_INET;
623 saddr.sin_len = sizeof saddr;
625 saddr.sin_port = htons(port_no);
626 if (isdigit(*hostp)) {
627 if ((saddr.sin_addr.s_addr = inet_addr(hostp)) == -1) {
628 warnx("bad net address %s", hostp);
631 } else if ((hp = gethostbyname(hostp)) != NULL)
632 memmove(&saddr.sin_addr, hp->h_addr,
633 MIN(hp->h_length, sizeof(saddr.sin_addr)));
635 warnx("can't get net id for host");
639 if ((nfsargsp->flags & NFSMNT_KERB)) {
640 if ((hp = gethostbyaddr((char *)&saddr.sin_addr.s_addr,
641 sizeof (u_long), AF_INET)) == (struct hostent *)0) {
642 warnx("can't reverse resolve net address");
645 memmove(&saddr.sin_addr, hp->h_addr,
646 MIN(hp->h_length, sizeof(saddr.sin_addr)));
647 strncpy(inst, hp->h_name, INST_SZ);
648 inst[INST_SZ - 1] = '\0';
649 if (cp = strchr(inst, '.'))
654 ret = TRYRET_LOCALERR;
657 ret = nfs_tryproto(nfsargsp, &saddr, hostp, spec, &errstr);
658 if (ret == TRYRET_SUCCESS)
660 if (ret != TRYRET_LOCALERR)
662 if ((opflags & ISBGRND) == 0)
663 fprintf(stderr, "%s\n", errstr);
665 /* Exit if all errors were local. */
670 * If retrycnt == 0, we are to keep retrying forever.
671 * Otherwise decrement it, and exit if it hits zero.
673 if (retrycnt != 0 && --retrycnt == 0)
676 if ((opflags & (BGRND | ISBGRND)) == BGRND) {
677 warnx("Cannot immediately mount %s:%s, backgrounding",
680 if (daemon(0, 0) != 0)
685 nfsargsp->hostname = nam;
686 /* Add mounted filesystem to PATH_MOUNTTAB */
687 if (!add_mtab(hostp, spec))
688 warnx("can't update %s for %s:%s", PATH_MOUNTTAB, hostp, spec);
693 * Try to set up the NFS arguments according to the address
694 * (and possibly port) specified by `sinp'.
696 * Returns TRYRET_SUCCESS if successful, or:
697 * TRYRET_TIMEOUT The server did not respond.
698 * TRYRET_REMOTEERR The server reported an error.
699 * TRYRET_LOCALERR Local failure.
701 * In all error cases, *errstr will be set to a statically-allocated string
702 * describing the error.
705 nfs_tryproto(struct nfs_args *nfsargsp, struct sockaddr_in *sinp, char *hostp,
706 char *spec, char **errstr)
708 static char errbuf[256];
709 struct sockaddr_in sin, tmpsin;
710 struct nfhret nfhret;
712 struct rpc_err rpcerr;
714 int doconnect, nfsvers, mntvers, so;
716 enum mountmode trymntmode;
718 trymntmode = mountmode;
721 sin = tmpsin = *sinp;
724 if (trymntmode == V2) {
732 /* Check that the server (nfsd) responds on the port we have chosen. */
736 if (nfsargsp->sotype == SOCK_STREAM)
737 clp = clnttcp_create(&sin, RPCPROG_NFS, nfsvers, &so, 0, 0);
739 clp = clntudp_create(&sin, RPCPROG_NFS, nfsvers, try, &so);
741 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
742 hostp, spec, clnt_spcreateerror("nfsd: RPCPROG_NFS"));
743 return (returncode(rpc_createerr.cf_stat,
744 &rpc_createerr.cf_error));
746 if (nfsargsp->sotype == SOCK_DGRAM &&
747 !(nfsargsp->flags & NFSMNT_NOCONN)) {
749 * Use connect(), to match what the kernel does. This
750 * catches cases where the server responds from the
751 * wrong source address.
754 if (!clnt_control(clp, CLSET_CONNECT, (char *)&doconnect)) {
756 snprintf(errbuf, sizeof errbuf,
757 "%s:%s: CLSET_CONNECT failed", hostp, spec);
758 return (TRYRET_LOCALERR);
764 stat = clnt_call(clp, NFSPROC_NULL, xdr_void, NULL, xdr_void, NULL,
766 if (stat != RPC_SUCCESS) {
767 if (stat == RPC_PROGVERSMISMATCH && trymntmode == ANY) {
772 clnt_geterr(clp, &rpcerr);
773 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
774 hostp, spec, clnt_sperror(clp, "NFSPROC_NULL"));
776 return (returncode(stat, &rpcerr));
780 /* Send the RPCMNT_MOUNT RPC to get the root filehandle. */
785 if (mnttcp_ok && nfsargsp->sotype == SOCK_STREAM)
786 clp = clnttcp_create(&tmpsin, RPCPROG_MNT, mntvers, &so, 0, 0);
788 clp = clntudp_create(&tmpsin, RPCPROG_MNT, mntvers, try, &so);
790 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
791 hostp, spec, clnt_spcreateerror("RPCMNT: clnt_create"));
792 return (returncode(rpc_createerr.cf_stat,
793 &rpc_createerr.cf_error));
795 clp->cl_auth = authunix_create_default();
796 if (nfsargsp->flags & NFSMNT_KERB)
797 nfhret.auth = RPCAUTH_KERB4;
799 nfhret.auth = RPCAUTH_UNIX;
800 nfhret.vers = mntvers;
801 stat = clnt_call(clp, RPCMNT_MOUNT, xdr_dir, spec, xdr_fh, &nfhret,
803 auth_destroy(clp->cl_auth);
804 if (stat != RPC_SUCCESS) {
805 if (stat == RPC_PROGVERSMISMATCH && trymntmode == ANY) {
810 clnt_geterr(clp, &rpcerr);
811 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
812 hostp, spec, clnt_sperror(clp, "RPCPROG_MNT"));
814 return (returncode(stat, &rpcerr));
818 if (nfhret.stat != 0) {
819 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
820 hostp, spec, strerror(nfhret.stat));
821 return (TRYRET_REMOTEERR);
825 * Store the filehandle and server address in nfsargsp, making
826 * sure to copy any locally allocated structures.
828 nfsargsp->addrlen = sin.sin_len;
829 nfsargsp->addr = malloc(nfsargsp->addrlen);
830 nfsargsp->fhsize = nfhret.fhsize;
831 nfsargsp->fh = malloc(nfsargsp->fhsize);
832 if (nfsargsp->addr == NULL || nfsargsp->fh == NULL)
834 bcopy(&sin, nfsargsp->addr, nfsargsp->addrlen);
835 bcopy(nfhret.nfh, nfsargsp->fh, nfsargsp->fhsize);
838 nfsargsp->flags |= NFSMNT_NFSV3;
840 nfsargsp->flags &= ~NFSMNT_NFSV3;
842 return (TRYRET_SUCCESS);
846 * Catagorise a RPC return status and error into an `enum tryret'
850 returncode(enum clnt_stat stat, struct rpc_err *rpcerr)
854 return (TRYRET_TIMEOUT);
855 case RPC_PMAPFAILURE:
856 case RPC_PROGNOTREGISTERED:
857 case RPC_PROGVERSMISMATCH:
858 /* XXX, these can be local or remote. */
861 return (TRYRET_REMOTEERR);
862 case RPC_SYSTEMERROR:
863 switch (rpcerr->re_errno) {
865 return (TRYRET_TIMEOUT);
869 return (TRYRET_REMOTEERR);
875 return (TRYRET_LOCALERR);
879 * xdr routines for mount rpc's
886 return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
892 register struct nfhret *np;
895 long auth, authcnt, authfnd = 0;
897 if (!xdr_u_long(xdrsp, &np->stat))
903 np->fhsize = NFSX_V2FH;
904 return (xdr_opaque(xdrsp, (caddr_t)np->nfh, NFSX_V2FH));
906 if (!xdr_long(xdrsp, &np->fhsize))
908 if (np->fhsize <= 0 || np->fhsize > NFSX_V3FHMAX)
910 if (!xdr_opaque(xdrsp, (caddr_t)np->nfh, np->fhsize))
912 if (!xdr_long(xdrsp, &authcnt))
914 for (i = 0; i < authcnt; i++) {
915 if (!xdr_long(xdrsp, &auth))
917 if (auth == np->auth)
921 * Some servers, such as DEC's OSF/1 return a nil authenticator
922 * list to indicate RPCAUTH_UNIX.
924 if (!authfnd && (authcnt > 0 || np->auth != RPCAUTH_UNIX))
934 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
935 "usage: mount_nfs [-23KNPTUbcdilqs] [-D deadthresh] [-I readdirsize]",
936 " [-L leaseterm] [-R retrycnt] [-a maxreadahead]",
937 " [-g maxgroups] [-m realm] [-o options] [-r readsize]",
938 " [-t timeout] [-w writesize] [-x retrans] rhost:path node");