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
38 static const char copyright[] =
39 "@(#) Copyright (c) 1992, 1993, 1994\n\
40 The Regents of the University of California. All rights reserved.\n";
45 static char sccsid[] = "@(#)mount_nfs.c 8.11 (Berkeley) 5/4/95";
47 static const char rcsid[] =
48 "$FreeBSD: src/sbin/mount_nfs/mount_nfs.c,v 1.36.2.6 2003/05/13 14:45:40 trhodes Exp $";
51 #include <sys/param.h>
52 #include <sys/mount.h>
54 #include <sys/syslog.h>
57 #include <rpc/pmap_clnt.h>
58 #include <rpc/pmap_prot.h>
61 #include <kerberosIV/des.h>
62 #include <kerberosIV/krb.h>
65 #include <nfs/rpcv2.h>
66 #include <nfs/nfsproto.h>
68 #include <nfs/nqnfs.h>
70 #include <arpa/inet.h>
86 #define ALTF_NOCONN 0x2
87 #define ALTF_DUMBTIMR 0x4
89 #define ALTF_KERB 0x10
90 #define ALTF_NFSV3 0x20
91 #define ALTF_RDIRPLUS 0x40
92 #define ALTF_MNTUDP 0x80
93 #define ALTF_RESVPORT 0x100
94 #define ALTF_SEQPACKET 0x200
95 #define ALTF_NQNFS 0x400
96 #define ALTF_SOFT 0x800
97 #define ALTF_TCP 0x1000
98 #define ALTF_PORT 0x2000
99 #define ALTF_NFSV2 0x4000
100 #define ALTF_ACREGMIN 0x8000
101 #define ALTF_ACREGMAX 0x10000
102 #define ALTF_ACDIRMIN 0x20000
103 #define ALTF_ACDIRMAX 0x40000
105 struct mntopt mopts[] = {
110 { "bg", 0, ALTF_BG, 1 },
111 { "conn", 1, ALTF_NOCONN, 1 },
112 { "dumbtimer", 0, ALTF_DUMBTIMR, 1 },
113 { "intr", 0, ALTF_INTR, 1 },
115 { "kerb", 0, ALTF_KERB, 1 },
117 { "nfsv3", 0, ALTF_NFSV3, 1 },
118 { "rdirplus", 0, ALTF_RDIRPLUS, 1 },
119 { "mntudp", 0, ALTF_MNTUDP, 1 },
120 { "resvport", 0, ALTF_RESVPORT, 1 },
121 { "nqnfs", 0, ALTF_NQNFS, 1 },
122 { "soft", 0, ALTF_SOFT, 1 },
123 { "tcp", 0, ALTF_TCP, 1 },
124 { "port=", 0, ALTF_PORT, 1 },
125 { "nfsv2", 0, ALTF_NFSV2, 1 },
126 { "acregmin=", 0, ALTF_ACREGMIN, 1 },
127 { "acregmax=", 0, ALTF_ACREGMAX, 1 },
128 { "acdirmin=", 0, ALTF_ACDIRMIN, 1 },
129 { "acdirmax=", 0, ALTF_ACDIRMAX, 1 },
133 struct nfs_args nfsdefargs = {
135 (struct sockaddr *)0,
136 sizeof (struct sockaddr_in),
164 u_char nfh[NFSX_V3FHMAX];
170 int nfsproto = IPPROTO_UDP;
181 char realm[REALM_SZ];
186 struct nfsrpc_nickverf kverf;
187 struct nfsrpc_fullblock kin, kout;
191 NFSKERBKEYSCHED_T kerb_keysched;
194 /* Return codes for nfs_tryproto. */
197 TRYRET_TIMEOUT, /* No response received. */
198 TRYRET_REMOTEERR, /* Error received from remote server. */
199 TRYRET_LOCALERR /* Local failure. */
202 int getnfsargs __P((char *, struct nfs_args *));
203 void set_rpc_maxgrouplist __P((int));
204 void usage __P((void)) __dead2;
205 int xdr_dir __P((XDR *, char *));
206 int xdr_fh __P((XDR *, struct nfhret *));
207 enum tryret nfs_tryproto(struct nfs_args *nfsargsp, struct sockaddr_in *sin,
208 char *hostp, char *spec, char **errstr);
209 enum tryret returncode(enum clnt_stat stat, struct rpc_err *rpcerr);
212 * Used to set mount flags with getmntopts. Call with dir=TRUE to
213 * initialize altflags from the current mount flags. Call with
214 * dir=FALSE to update mount flags with the new value of altflags after
215 * the call to getmntopts.
218 set_flags(int* altflags, int* nfsflags, int dir)
222 if (*nfsflags & NFSMNT_##nf) \
223 *altflags |= ALTF_##af; \
225 *altflags &= ~ALTF_##af; \
227 if (*altflags & ALTF_##af) \
228 *nfsflags |= NFSMNT_##nf; \
230 *nfsflags &= ~NFSMNT_##nf; \
259 register struct nfs_args *nfsargsp;
260 struct nfs_args nfsargs;
261 struct nfsd_cargs ncd;
262 int mntflags, altflags, nfssvc_flag, num;
263 char *name, *p, *spec;
264 char mntpath[MAXPATHLEN];
271 (void)strcpy(realm, KRB_REALM);
272 if (sizeof (struct nfsrpc_nickverf) != RPCX_NICKVERF ||
273 sizeof (struct nfsrpc_fullblock) != RPCX_FULLBLOCK ||
274 ((char *)&ktick.kt) - ((char *)&ktick) != NFSX_UNSIGNED ||
275 ((char *)ktick.kt.dat) - ((char *)&ktick) != 2 * NFSX_UNSIGNED)
276 fprintf(stderr, "Yikes! NFSKERB structs not packed!!\n");
281 nfsargs = nfsdefargs;
283 while ((c = getopt(argc, argv,
284 "23a:bcdD:g:I:iKL:lm:No:PqR:r:sTt:w:x:U")) != -1)
293 num = strtol(optarg, &p, 10);
295 errx(1, "illegal -a value -- %s", optarg);
296 nfsargsp->readahead = num;
297 nfsargsp->flags |= NFSMNT_READAHEAD;
303 nfsargsp->flags |= NFSMNT_NOCONN;
306 num = strtol(optarg, &p, 10);
308 errx(1, "illegal -D value -- %s", optarg);
309 nfsargsp->deadthresh = num;
310 nfsargsp->flags |= NFSMNT_DEADTHRESH;
313 nfsargsp->flags |= NFSMNT_DUMBTIMR;
316 num = strtol(optarg, &p, 10);
318 errx(1, "illegal -g value -- %s", optarg);
319 set_rpc_maxgrouplist(num);
320 nfsargsp->maxgrouplist = num;
321 nfsargsp->flags |= NFSMNT_MAXGRPS;
324 num = strtol(optarg, &p, 10);
326 errx(1, "illegal -I value -- %s", optarg);
327 nfsargsp->readdirsize = num;
328 nfsargsp->flags |= NFSMNT_READDIRSIZE;
331 nfsargsp->flags |= NFSMNT_INT;
335 nfsargsp->flags |= NFSMNT_KERB;
339 num = strtol(optarg, &p, 10);
341 errx(1, "illegal -L value -- %s", optarg);
342 nfsargsp->leaseterm = num;
343 nfsargsp->flags |= NFSMNT_LEASETERM;
346 nfsargsp->flags |= NFSMNT_RDIRPLUS;
350 (void)strncpy(realm, optarg, REALM_SZ - 1);
351 realm[REALM_SZ - 1] = '\0';
355 nfsargsp->flags &= ~NFSMNT_RESVPORT;
359 set_flags(&altflags, &nfsargsp->flags, TRUE);
361 altflags |= ALTF_NFSV2;
362 else if (mountmode == V3)
363 altflags |= ALTF_NFSV3;
364 getmntopts(optarg, mopts, &mntflags, &altflags);
365 set_flags(&altflags, &nfsargsp->flags, FALSE);
367 * Handle altflags which don't map directly to
370 if(altflags & ALTF_BG)
372 if(altflags & ALTF_MNTUDP)
374 if(altflags & ALTF_TCP) {
375 nfsargsp->sotype = SOCK_STREAM;
376 nfsproto = IPPROTO_TCP;
378 if(altflags & ALTF_PORT)
379 port_no = atoi(strstr(optarg, "port=") + 5);
381 if(altflags & ALTF_NFSV2)
383 if(altflags & ALTF_NFSV3)
385 if(altflags & ALTF_ACREGMIN)
386 nfsargsp->acregmin = atoi(strstr(optarg,
388 if(altflags & ALTF_ACREGMAX)
389 nfsargsp->acregmax = atoi(strstr(optarg,
391 if(altflags & ALTF_ACDIRMIN)
392 nfsargsp->acdirmin = atoi(strstr(optarg,
394 if(altflags & ALTF_ACDIRMAX)
395 nfsargsp->acdirmax = atoi(strstr(optarg,
399 /* obsolete for NFSMNT_RESVPORT, now default */
403 nfsargsp->flags |= NFSMNT_NQNFS;
406 num = strtol(optarg, &p, 10);
408 errx(1, "illegal -R value -- %s", optarg);
412 num = strtol(optarg, &p, 10);
414 errx(1, "illegal -r value -- %s", optarg);
415 nfsargsp->rsize = num;
416 nfsargsp->flags |= NFSMNT_RSIZE;
419 nfsargsp->flags |= NFSMNT_SOFT;
422 nfsargsp->sotype = SOCK_STREAM;
423 nfsproto = IPPROTO_TCP;
426 num = strtol(optarg, &p, 10);
428 errx(1, "illegal -t value -- %s", optarg);
429 nfsargsp->timeo = num;
430 nfsargsp->flags |= NFSMNT_TIMEO;
433 num = strtol(optarg, &p, 10);
435 errx(1, "illegal -w value -- %s", optarg);
436 nfsargsp->wsize = num;
437 nfsargsp->flags |= NFSMNT_WSIZE;
440 num = strtol(optarg, &p, 10);
442 errx(1, "illegal -x value -- %s", optarg);
443 nfsargsp->retrans = num;
444 nfsargsp->flags |= NFSMNT_RETRANS;
465 /* The default is to keep retrying forever. */
467 if (!getnfsargs(spec, nfsargsp))
470 /* resolve the mountpoint with realpath(3) */
471 (void)checkpath(name, mntpath);
473 error = getvfsbyname("nfs", &vfc);
474 if (error && vfsisloadable("nfs")) {
476 err(EX_OSERR, "vfsload(nfs)");
477 endvfsent(); /* clear cache */
478 error = getvfsbyname("nfs", &vfc);
481 errx(EX_OSERR, "nfs filesystem is not available");
483 if (mount(vfc.vfc_name, mntpath, mntflags, nfsargsp))
484 err(1, "%s", mntpath);
485 if (nfsargsp->flags & (NFSMNT_NQNFS | NFSMNT_KERB)) {
486 if ((opflags & ISBGRND) == 0) {
487 if (daemon(0, 0) != 0)
490 openlog("mount_nfs", LOG_PID, LOG_DAEMON);
491 nfssvc_flag = NFSSVC_MNTD;
492 ncd.ncd_dirp = mntpath;
493 while (nfssvc(nfssvc_flag, (caddr_t)&ncd) < 0) {
494 if (errno != ENEEDAUTH) {
495 syslog(LOG_ERR, "nfssvc err %m");
499 NFSSVC_MNTD | NFSSVC_GOTAUTH | NFSSVC_AUTHINFAIL;
502 * Set up as ncd_authuid for the kerberos call.
503 * Must set ruid to ncd_authuid and reset the
504 * ticket name iff ncd_authuid is not the same
505 * as last time, so that the right ticket file
507 * Get the Kerberos credential structure so that
508 * we have the session key and get a ticket for
510 * For more info see the IETF Draft "Authentication
513 if (ncd.ncd_authuid != last_ruid) {
515 (void)sprintf(buf, "%s%d",
516 TKT_ROOT, ncd.ncd_authuid);
517 krb_set_tkt_string(buf);
518 last_ruid = ncd.ncd_authuid;
520 setreuid(ncd.ncd_authuid, 0);
521 kret = krb_get_cred(NFS_KERBSRV, inst, realm, &kcr);
522 if (kret == RET_NOTKT) {
523 kret = get_ad_tkt(NFS_KERBSRV, inst, realm,
525 if (kret == KSUCCESS)
526 kret = krb_get_cred(NFS_KERBSRV, inst, realm,
529 if (kret == KSUCCESS)
530 kret = krb_mk_req(&ktick.kt, NFS_KERBSRV, inst,
534 * Fill in the AKN_FULLNAME authenticator and verifier.
535 * Along with the Kerberos ticket, we need to build
536 * the timestamp verifier and encrypt it in CBC mode.
538 if (kret == KSUCCESS &&
539 ktick.kt.length <= (RPCAUTH_MAXSIZ-3*NFSX_UNSIGNED)
540 && gettimeofday(&ktv, (struct timezone *)0) == 0) {
541 ncd.ncd_authtype = RPCAUTH_KERB4;
542 ncd.ncd_authstr = (u_char *)&ktick;
543 ncd.ncd_authlen = nfsm_rndup(ktick.kt.length) +
545 ncd.ncd_verfstr = (u_char *)&kverf;
546 ncd.ncd_verflen = sizeof (kverf);
547 memmove(ncd.ncd_key, kcr.session,
548 sizeof (kcr.session));
549 kin.t1 = htonl(ktv.tv_sec);
550 kin.t2 = htonl(ktv.tv_usec);
551 kin.w1 = htonl(NFS_KERBTTL);
552 kin.w2 = htonl(NFS_KERBTTL - 1);
553 bzero((caddr_t)kivec, sizeof (kivec));
556 * Encrypt kin in CBC mode using the session
562 * Finally, fill the timestamp verifier into the
563 * authenticator and verifier.
565 ktick.kind = htonl(RPCAKN_FULLNAME);
566 kverf.kind = htonl(RPCAKN_FULLNAME);
567 NFS_KERBW1(ktick.kt) = kout.w1;
568 ktick.kt.length = htonl(ktick.kt.length);
569 kverf.verf.t1 = kout.t1;
570 kverf.verf.t2 = kout.t2;
571 kverf.verf.w2 = kout.w2;
572 nfssvc_flag = NFSSVC_MNTD | NFSSVC_GOTAUTH;
582 getnfsargs(spec, nfsargsp)
584 struct nfs_args *nfsargsp;
587 struct sockaddr_in saddr;
589 int speclen, remoteerr;
590 char *hostp, *delimp, *errstr;
595 static char nam[MNAMELEN + 1];
597 if ((delimp = strrchr(spec, ':')) != NULL) {
600 } else if ((delimp = strrchr(spec, '@')) != NULL) {
601 warnx("path@server syntax is deprecated, use server:path");
604 warnx("no <host>:<dirpath> nfs-name");
610 * If there has been a trailing slash at mounttime it seems
611 * that some mountd implementations fail to remove the mount
612 * entries from their mountlist while unmounting.
614 for (speclen = strlen(spec);
615 speclen > 1 && spec[speclen - 1] == '/';
617 spec[speclen - 1] = '\0';
618 if (strlen(hostp) + strlen(spec) + 1 > MNAMELEN) {
619 warnx("%s:%s: %s", hostp, spec, strerror(ENAMETOOLONG));
622 /* Make both '@' and ':' notations equal */
623 if (*hostp != '\0') {
625 memmove(nam, hostp, len);
627 memmove(nam + len + 1, spec, speclen);
628 nam[len + speclen + 1] = '\0';
632 * Handle an internet host address and reverse resolve it if
635 bzero(&saddr, sizeof saddr);
636 saddr.sin_family = AF_INET;
637 saddr.sin_len = sizeof saddr;
639 saddr.sin_port = htons(port_no);
640 if (isdigit(*hostp)) {
641 if ((saddr.sin_addr.s_addr = inet_addr(hostp)) == -1) {
642 warnx("bad net address %s", hostp);
645 } else if ((hp = gethostbyname(hostp)) != NULL)
646 memmove(&saddr.sin_addr, hp->h_addr,
647 MIN(hp->h_length, sizeof(saddr.sin_addr)));
649 warnx("can't get net id for host");
653 if ((nfsargsp->flags & NFSMNT_KERB)) {
654 if ((hp = gethostbyaddr((char *)&saddr.sin_addr.s_addr,
655 sizeof (u_long), AF_INET)) == (struct hostent *)0) {
656 warnx("can't reverse resolve net address");
659 memmove(&saddr.sin_addr, hp->h_addr,
660 MIN(hp->h_length, sizeof(saddr.sin_addr)));
661 strncpy(inst, hp->h_name, INST_SZ);
662 inst[INST_SZ - 1] = '\0';
663 if (cp = strchr(inst, '.'))
668 ret = TRYRET_LOCALERR;
671 ret = nfs_tryproto(nfsargsp, &saddr, hostp, spec, &errstr);
672 if (ret == TRYRET_SUCCESS)
674 if (ret != TRYRET_LOCALERR)
676 if ((opflags & ISBGRND) == 0)
677 fprintf(stderr, "%s\n", errstr);
679 /* Exit if all errors were local. */
684 * If retrycnt == 0, we are to keep retrying forever.
685 * Otherwise decrement it, and exit if it hits zero.
687 if (retrycnt != 0 && --retrycnt == 0)
690 if ((opflags & (BGRND | ISBGRND)) == BGRND) {
691 warnx("Cannot immediately mount %s:%s, backgrounding",
694 if (daemon(0, 0) != 0)
699 nfsargsp->hostname = nam;
700 /* Add mounted filesystem to PATH_MOUNTTAB */
701 if (!add_mtab(hostp, spec))
702 warnx("can't update %s for %s:%s", PATH_MOUNTTAB, hostp, spec);
707 * Try to set up the NFS arguments according to the address
708 * (and possibly port) specified by `sinp'.
710 * Returns TRYRET_SUCCESS if successful, or:
711 * TRYRET_TIMEOUT The server did not respond.
712 * TRYRET_REMOTEERR The server reported an error.
713 * TRYRET_LOCALERR Local failure.
715 * In all error cases, *errstr will be set to a statically-allocated string
716 * describing the error.
719 nfs_tryproto(struct nfs_args *nfsargsp, struct sockaddr_in *sinp, char *hostp,
720 char *spec, char **errstr)
722 static char errbuf[256];
723 struct sockaddr_in sin, tmpsin;
724 struct nfhret nfhret;
726 struct rpc_err rpcerr;
728 int doconnect, nfsvers, mntvers, so;
730 enum mountmode trymntmode;
732 trymntmode = mountmode;
735 sin = tmpsin = *sinp;
738 if (trymntmode == V2) {
746 /* Check that the server (nfsd) responds on the port we have chosen. */
750 if (nfsargsp->sotype == SOCK_STREAM)
751 clp = clnttcp_create(&sin, RPCPROG_NFS, nfsvers, &so, 0, 0);
753 clp = clntudp_create(&sin, RPCPROG_NFS, nfsvers, try, &so);
755 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
756 hostp, spec, clnt_spcreateerror("nfsd: RPCPROG_NFS"));
757 return (returncode(rpc_createerr.cf_stat,
758 &rpc_createerr.cf_error));
760 if (nfsargsp->sotype == SOCK_DGRAM &&
761 !(nfsargsp->flags & NFSMNT_NOCONN)) {
763 * Use connect(), to match what the kernel does. This
764 * catches cases where the server responds from the
765 * wrong source address.
768 if (!clnt_control(clp, CLSET_CONNECT, (char *)&doconnect)) {
770 snprintf(errbuf, sizeof errbuf,
771 "%s:%s: CLSET_CONNECT failed", hostp, spec);
772 return (TRYRET_LOCALERR);
778 stat = clnt_call(clp, NFSPROC_NULL, xdr_void, NULL, xdr_void, NULL,
780 if (stat != RPC_SUCCESS) {
781 if (stat == RPC_PROGVERSMISMATCH && trymntmode == ANY) {
786 clnt_geterr(clp, &rpcerr);
787 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
788 hostp, spec, clnt_sperror(clp, "NFSPROC_NULL"));
790 return (returncode(stat, &rpcerr));
794 /* Send the RPCMNT_MOUNT RPC to get the root filehandle. */
799 if (mnttcp_ok && nfsargsp->sotype == SOCK_STREAM)
800 clp = clnttcp_create(&tmpsin, RPCPROG_MNT, mntvers, &so, 0, 0);
802 clp = clntudp_create(&tmpsin, RPCPROG_MNT, mntvers, try, &so);
804 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
805 hostp, spec, clnt_spcreateerror("RPCMNT: clnt_create"));
806 return (returncode(rpc_createerr.cf_stat,
807 &rpc_createerr.cf_error));
809 clp->cl_auth = authunix_create_default();
810 if (nfsargsp->flags & NFSMNT_KERB)
811 nfhret.auth = RPCAUTH_KERB4;
813 nfhret.auth = RPCAUTH_UNIX;
814 nfhret.vers = mntvers;
815 stat = clnt_call(clp, RPCMNT_MOUNT, xdr_dir, spec, xdr_fh, &nfhret,
817 auth_destroy(clp->cl_auth);
818 if (stat != RPC_SUCCESS) {
819 if (stat == RPC_PROGVERSMISMATCH && trymntmode == ANY) {
824 clnt_geterr(clp, &rpcerr);
825 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
826 hostp, spec, clnt_sperror(clp, "RPCPROG_MNT"));
828 return (returncode(stat, &rpcerr));
832 if (nfhret.stat != 0) {
833 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
834 hostp, spec, strerror(nfhret.stat));
835 return (TRYRET_REMOTEERR);
839 * Store the filehandle and server address in nfsargsp, making
840 * sure to copy any locally allocated structures.
842 nfsargsp->addrlen = sin.sin_len;
843 nfsargsp->addr = malloc(nfsargsp->addrlen);
844 nfsargsp->fhsize = nfhret.fhsize;
845 nfsargsp->fh = malloc(nfsargsp->fhsize);
846 if (nfsargsp->addr == NULL || nfsargsp->fh == NULL)
848 bcopy(&sin, nfsargsp->addr, nfsargsp->addrlen);
849 bcopy(nfhret.nfh, nfsargsp->fh, nfsargsp->fhsize);
852 nfsargsp->flags |= NFSMNT_NFSV3;
854 nfsargsp->flags &= ~NFSMNT_NFSV3;
856 return (TRYRET_SUCCESS);
860 * Catagorise a RPC return status and error into an `enum tryret'
864 returncode(enum clnt_stat stat, struct rpc_err *rpcerr)
868 return (TRYRET_TIMEOUT);
869 case RPC_PMAPFAILURE:
870 case RPC_PROGNOTREGISTERED:
871 case RPC_PROGVERSMISMATCH:
872 /* XXX, these can be local or remote. */
875 return (TRYRET_REMOTEERR);
876 case RPC_SYSTEMERROR:
877 switch (rpcerr->re_errno) {
879 return (TRYRET_TIMEOUT);
883 return (TRYRET_REMOTEERR);
889 return (TRYRET_LOCALERR);
893 * xdr routines for mount rpc's
900 return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
906 register struct nfhret *np;
909 long auth, authcnt, authfnd = 0;
911 if (!xdr_u_long(xdrsp, &np->stat))
917 np->fhsize = NFSX_V2FH;
918 return (xdr_opaque(xdrsp, (caddr_t)np->nfh, NFSX_V2FH));
920 if (!xdr_long(xdrsp, &np->fhsize))
922 if (np->fhsize <= 0 || np->fhsize > NFSX_V3FHMAX)
924 if (!xdr_opaque(xdrsp, (caddr_t)np->nfh, np->fhsize))
926 if (!xdr_long(xdrsp, &authcnt))
928 for (i = 0; i < authcnt; i++) {
929 if (!xdr_long(xdrsp, &auth))
931 if (auth == np->auth)
935 * Some servers, such as DEC's OSF/1 return a nil authenticator
936 * list to indicate RPCAUTH_UNIX.
938 if (!authfnd && (authcnt > 0 || np->auth != RPCAUTH_UNIX))
948 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
949 "usage: mount_nfs [-23KNPTUbcdilqs] [-D deadthresh] [-I readdirsize]",
950 " [-L leaseterm] [-R retrycnt] [-a maxreadahead]",
951 " [-g maxgroups] [-m realm] [-o options] [-r readsize]",
952 " [-t timeout] [-w writesize] [-x retrans] rhost:path node");