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 1.2 2003/06/17 04:27:33 dillon 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>
52 #include <kerberosIV/des.h>
53 #include <kerberosIV/krb.h>
56 #include <nfs/rpcv2.h>
57 #include <nfs/nfsproto.h>
59 #include <nfs/nqnfs.h>
61 #include <arpa/inet.h>
77 #define ALTF_NOCONN 0x2
78 #define ALTF_DUMBTIMR 0x4
80 #define ALTF_KERB 0x10
81 #define ALTF_NFSV3 0x20
82 #define ALTF_RDIRPLUS 0x40
83 #define ALTF_MNTUDP 0x80
84 #define ALTF_RESVPORT 0x100
85 #define ALTF_SEQPACKET 0x200
86 #define ALTF_NQNFS 0x400
87 #define ALTF_SOFT 0x800
88 #define ALTF_TCP 0x1000
89 #define ALTF_PORT 0x2000
90 #define ALTF_NFSV2 0x4000
91 #define ALTF_ACREGMIN 0x8000
92 #define ALTF_ACREGMAX 0x10000
93 #define ALTF_ACDIRMIN 0x20000
94 #define ALTF_ACDIRMAX 0x40000
96 struct mntopt mopts[] = {
101 { "bg", 0, ALTF_BG, 1 },
102 { "conn", 1, ALTF_NOCONN, 1 },
103 { "dumbtimer", 0, ALTF_DUMBTIMR, 1 },
104 { "intr", 0, ALTF_INTR, 1 },
106 { "kerb", 0, ALTF_KERB, 1 },
108 { "nfsv3", 0, ALTF_NFSV3, 1 },
109 { "rdirplus", 0, ALTF_RDIRPLUS, 1 },
110 { "mntudp", 0, ALTF_MNTUDP, 1 },
111 { "resvport", 0, ALTF_RESVPORT, 1 },
112 { "nqnfs", 0, ALTF_NQNFS, 1 },
113 { "soft", 0, ALTF_SOFT, 1 },
114 { "tcp", 0, ALTF_TCP, 1 },
115 { "port=", 0, ALTF_PORT, 1 },
116 { "nfsv2", 0, ALTF_NFSV2, 1 },
117 { "acregmin=", 0, ALTF_ACREGMIN, 1 },
118 { "acregmax=", 0, ALTF_ACREGMAX, 1 },
119 { "acdirmin=", 0, ALTF_ACDIRMIN, 1 },
120 { "acdirmax=", 0, ALTF_ACDIRMAX, 1 },
124 struct nfs_args nfsdefargs = {
126 (struct sockaddr *)0,
127 sizeof (struct sockaddr_in),
155 u_char nfh[NFSX_V3FHMAX];
161 int nfsproto = IPPROTO_UDP;
172 char realm[REALM_SZ];
177 struct nfsrpc_nickverf kverf;
178 struct nfsrpc_fullblock kin, kout;
182 NFSKERBKEYSCHED_T kerb_keysched;
185 /* Return codes for nfs_tryproto. */
188 TRYRET_TIMEOUT, /* No response received. */
189 TRYRET_REMOTEERR, /* Error received from remote server. */
190 TRYRET_LOCALERR /* Local failure. */
193 int getnfsargs __P((char *, struct nfs_args *));
194 void set_rpc_maxgrouplist __P((int));
195 void usage __P((void)) __dead2;
196 int xdr_dir __P((XDR *, char *));
197 int xdr_fh __P((XDR *, struct nfhret *));
198 enum tryret nfs_tryproto(struct nfs_args *nfsargsp, struct sockaddr_in *sin,
199 char *hostp, char *spec, char **errstr);
200 enum tryret returncode(enum clnt_stat stat, struct rpc_err *rpcerr);
203 * Used to set mount flags with getmntopts. Call with dir=TRUE to
204 * initialize altflags from the current mount flags. Call with
205 * dir=FALSE to update mount flags with the new value of altflags after
206 * the call to getmntopts.
209 set_flags(int* altflags, int* nfsflags, int dir)
213 if (*nfsflags & NFSMNT_##nf) \
214 *altflags |= ALTF_##af; \
216 *altflags &= ~ALTF_##af; \
218 if (*altflags & ALTF_##af) \
219 *nfsflags |= NFSMNT_##nf; \
221 *nfsflags &= ~NFSMNT_##nf; \
250 register struct nfs_args *nfsargsp;
251 struct nfs_args nfsargs;
252 struct nfsd_cargs ncd;
253 int mntflags, altflags, nfssvc_flag, num;
254 char *name, *p, *spec;
255 char mntpath[MAXPATHLEN];
262 (void)strcpy(realm, KRB_REALM);
263 if (sizeof (struct nfsrpc_nickverf) != RPCX_NICKVERF ||
264 sizeof (struct nfsrpc_fullblock) != RPCX_FULLBLOCK ||
265 ((char *)&ktick.kt) - ((char *)&ktick) != NFSX_UNSIGNED ||
266 ((char *)ktick.kt.dat) - ((char *)&ktick) != 2 * NFSX_UNSIGNED)
267 fprintf(stderr, "Yikes! NFSKERB structs not packed!!\n");
272 nfsargs = nfsdefargs;
274 while ((c = getopt(argc, argv,
275 "23a:bcdD:g:I:iKL:lm:No:PqR:r:sTt:w:x:U")) != -1)
284 num = strtol(optarg, &p, 10);
286 errx(1, "illegal -a value -- %s", optarg);
287 nfsargsp->readahead = num;
288 nfsargsp->flags |= NFSMNT_READAHEAD;
294 nfsargsp->flags |= NFSMNT_NOCONN;
297 num = strtol(optarg, &p, 10);
299 errx(1, "illegal -D value -- %s", optarg);
300 nfsargsp->deadthresh = num;
301 nfsargsp->flags |= NFSMNT_DEADTHRESH;
304 nfsargsp->flags |= NFSMNT_DUMBTIMR;
307 num = strtol(optarg, &p, 10);
309 errx(1, "illegal -g value -- %s", optarg);
310 set_rpc_maxgrouplist(num);
311 nfsargsp->maxgrouplist = num;
312 nfsargsp->flags |= NFSMNT_MAXGRPS;
315 num = strtol(optarg, &p, 10);
317 errx(1, "illegal -I value -- %s", optarg);
318 nfsargsp->readdirsize = num;
319 nfsargsp->flags |= NFSMNT_READDIRSIZE;
322 nfsargsp->flags |= NFSMNT_INT;
326 nfsargsp->flags |= NFSMNT_KERB;
330 num = strtol(optarg, &p, 10);
332 errx(1, "illegal -L value -- %s", optarg);
333 nfsargsp->leaseterm = num;
334 nfsargsp->flags |= NFSMNT_LEASETERM;
337 nfsargsp->flags |= NFSMNT_RDIRPLUS;
341 (void)strncpy(realm, optarg, REALM_SZ - 1);
342 realm[REALM_SZ - 1] = '\0';
346 nfsargsp->flags &= ~NFSMNT_RESVPORT;
350 set_flags(&altflags, &nfsargsp->flags, TRUE);
352 altflags |= ALTF_NFSV2;
353 else if (mountmode == V3)
354 altflags |= ALTF_NFSV3;
355 getmntopts(optarg, mopts, &mntflags, &altflags);
356 set_flags(&altflags, &nfsargsp->flags, FALSE);
358 * Handle altflags which don't map directly to
361 if(altflags & ALTF_BG)
363 if(altflags & ALTF_MNTUDP)
365 if(altflags & ALTF_TCP) {
366 nfsargsp->sotype = SOCK_STREAM;
367 nfsproto = IPPROTO_TCP;
369 if(altflags & ALTF_PORT)
370 port_no = atoi(strstr(optarg, "port=") + 5);
372 if(altflags & ALTF_NFSV2)
374 if(altflags & ALTF_NFSV3)
376 if(altflags & ALTF_ACREGMIN)
377 nfsargsp->acregmin = atoi(strstr(optarg,
379 if(altflags & ALTF_ACREGMAX)
380 nfsargsp->acregmax = atoi(strstr(optarg,
382 if(altflags & ALTF_ACDIRMIN)
383 nfsargsp->acdirmin = atoi(strstr(optarg,
385 if(altflags & ALTF_ACDIRMAX)
386 nfsargsp->acdirmax = atoi(strstr(optarg,
390 /* obsolete for NFSMNT_RESVPORT, now default */
394 nfsargsp->flags |= NFSMNT_NQNFS;
397 num = strtol(optarg, &p, 10);
399 errx(1, "illegal -R value -- %s", optarg);
403 num = strtol(optarg, &p, 10);
405 errx(1, "illegal -r value -- %s", optarg);
406 nfsargsp->rsize = num;
407 nfsargsp->flags |= NFSMNT_RSIZE;
410 nfsargsp->flags |= NFSMNT_SOFT;
413 nfsargsp->sotype = SOCK_STREAM;
414 nfsproto = IPPROTO_TCP;
417 num = strtol(optarg, &p, 10);
419 errx(1, "illegal -t value -- %s", optarg);
420 nfsargsp->timeo = num;
421 nfsargsp->flags |= NFSMNT_TIMEO;
424 num = strtol(optarg, &p, 10);
426 errx(1, "illegal -w value -- %s", optarg);
427 nfsargsp->wsize = num;
428 nfsargsp->flags |= NFSMNT_WSIZE;
431 num = strtol(optarg, &p, 10);
433 errx(1, "illegal -x value -- %s", optarg);
434 nfsargsp->retrans = num;
435 nfsargsp->flags |= NFSMNT_RETRANS;
456 /* The default is to keep retrying forever. */
458 if (!getnfsargs(spec, nfsargsp))
461 /* resolve the mountpoint with realpath(3) */
462 (void)checkpath(name, mntpath);
464 error = getvfsbyname("nfs", &vfc);
465 if (error && vfsisloadable("nfs")) {
467 err(EX_OSERR, "vfsload(nfs)");
468 endvfsent(); /* clear cache */
469 error = getvfsbyname("nfs", &vfc);
472 errx(EX_OSERR, "nfs filesystem is not available");
474 if (mount(vfc.vfc_name, mntpath, mntflags, nfsargsp))
475 err(1, "%s", mntpath);
476 if (nfsargsp->flags & (NFSMNT_NQNFS | NFSMNT_KERB)) {
477 if ((opflags & ISBGRND) == 0) {
478 if (daemon(0, 0) != 0)
481 openlog("mount_nfs", LOG_PID, LOG_DAEMON);
482 nfssvc_flag = NFSSVC_MNTD;
483 ncd.ncd_dirp = mntpath;
484 while (nfssvc(nfssvc_flag, (caddr_t)&ncd) < 0) {
485 if (errno != ENEEDAUTH) {
486 syslog(LOG_ERR, "nfssvc err %m");
490 NFSSVC_MNTD | NFSSVC_GOTAUTH | NFSSVC_AUTHINFAIL;
493 * Set up as ncd_authuid for the kerberos call.
494 * Must set ruid to ncd_authuid and reset the
495 * ticket name iff ncd_authuid is not the same
496 * as last time, so that the right ticket file
498 * Get the Kerberos credential structure so that
499 * we have the session key and get a ticket for
501 * For more info see the IETF Draft "Authentication
504 if (ncd.ncd_authuid != last_ruid) {
506 (void)sprintf(buf, "%s%d",
507 TKT_ROOT, ncd.ncd_authuid);
508 krb_set_tkt_string(buf);
509 last_ruid = ncd.ncd_authuid;
511 setreuid(ncd.ncd_authuid, 0);
512 kret = krb_get_cred(NFS_KERBSRV, inst, realm, &kcr);
513 if (kret == RET_NOTKT) {
514 kret = get_ad_tkt(NFS_KERBSRV, inst, realm,
516 if (kret == KSUCCESS)
517 kret = krb_get_cred(NFS_KERBSRV, inst, realm,
520 if (kret == KSUCCESS)
521 kret = krb_mk_req(&ktick.kt, NFS_KERBSRV, inst,
525 * Fill in the AKN_FULLNAME authenticator and verifier.
526 * Along with the Kerberos ticket, we need to build
527 * the timestamp verifier and encrypt it in CBC mode.
529 if (kret == KSUCCESS &&
530 ktick.kt.length <= (RPCAUTH_MAXSIZ-3*NFSX_UNSIGNED)
531 && gettimeofday(&ktv, (struct timezone *)0) == 0) {
532 ncd.ncd_authtype = RPCAUTH_KERB4;
533 ncd.ncd_authstr = (u_char *)&ktick;
534 ncd.ncd_authlen = nfsm_rndup(ktick.kt.length) +
536 ncd.ncd_verfstr = (u_char *)&kverf;
537 ncd.ncd_verflen = sizeof (kverf);
538 memmove(ncd.ncd_key, kcr.session,
539 sizeof (kcr.session));
540 kin.t1 = htonl(ktv.tv_sec);
541 kin.t2 = htonl(ktv.tv_usec);
542 kin.w1 = htonl(NFS_KERBTTL);
543 kin.w2 = htonl(NFS_KERBTTL - 1);
544 bzero((caddr_t)kivec, sizeof (kivec));
547 * Encrypt kin in CBC mode using the session
553 * Finally, fill the timestamp verifier into the
554 * authenticator and verifier.
556 ktick.kind = htonl(RPCAKN_FULLNAME);
557 kverf.kind = htonl(RPCAKN_FULLNAME);
558 NFS_KERBW1(ktick.kt) = kout.w1;
559 ktick.kt.length = htonl(ktick.kt.length);
560 kverf.verf.t1 = kout.t1;
561 kverf.verf.t2 = kout.t2;
562 kverf.verf.w2 = kout.w2;
563 nfssvc_flag = NFSSVC_MNTD | NFSSVC_GOTAUTH;
573 getnfsargs(spec, nfsargsp)
575 struct nfs_args *nfsargsp;
578 struct sockaddr_in saddr;
580 int speclen, remoteerr;
581 char *hostp, *delimp, *errstr;
586 static char nam[MNAMELEN + 1];
588 if ((delimp = strrchr(spec, ':')) != NULL) {
591 } else if ((delimp = strrchr(spec, '@')) != NULL) {
592 warnx("path@server syntax is deprecated, use server:path");
595 warnx("no <host>:<dirpath> nfs-name");
601 * If there has been a trailing slash at mounttime it seems
602 * that some mountd implementations fail to remove the mount
603 * entries from their mountlist while unmounting.
605 for (speclen = strlen(spec);
606 speclen > 1 && spec[speclen - 1] == '/';
608 spec[speclen - 1] = '\0';
609 if (strlen(hostp) + strlen(spec) + 1 > MNAMELEN) {
610 warnx("%s:%s: %s", hostp, spec, strerror(ENAMETOOLONG));
613 /* Make both '@' and ':' notations equal */
614 if (*hostp != '\0') {
616 memmove(nam, hostp, len);
618 memmove(nam + len + 1, spec, speclen);
619 nam[len + speclen + 1] = '\0';
623 * Handle an internet host address and reverse resolve it if
626 bzero(&saddr, sizeof saddr);
627 saddr.sin_family = AF_INET;
628 saddr.sin_len = sizeof saddr;
630 saddr.sin_port = htons(port_no);
631 if (isdigit(*hostp)) {
632 if ((saddr.sin_addr.s_addr = inet_addr(hostp)) == -1) {
633 warnx("bad net address %s", hostp);
636 } else if ((hp = gethostbyname(hostp)) != NULL)
637 memmove(&saddr.sin_addr, hp->h_addr,
638 MIN(hp->h_length, sizeof(saddr.sin_addr)));
640 warnx("can't get net id for host");
644 if ((nfsargsp->flags & NFSMNT_KERB)) {
645 if ((hp = gethostbyaddr((char *)&saddr.sin_addr.s_addr,
646 sizeof (u_long), AF_INET)) == (struct hostent *)0) {
647 warnx("can't reverse resolve net address");
650 memmove(&saddr.sin_addr, hp->h_addr,
651 MIN(hp->h_length, sizeof(saddr.sin_addr)));
652 strncpy(inst, hp->h_name, INST_SZ);
653 inst[INST_SZ - 1] = '\0';
654 if (cp = strchr(inst, '.'))
659 ret = TRYRET_LOCALERR;
662 ret = nfs_tryproto(nfsargsp, &saddr, hostp, spec, &errstr);
663 if (ret == TRYRET_SUCCESS)
665 if (ret != TRYRET_LOCALERR)
667 if ((opflags & ISBGRND) == 0)
668 fprintf(stderr, "%s\n", errstr);
670 /* Exit if all errors were local. */
675 * If retrycnt == 0, we are to keep retrying forever.
676 * Otherwise decrement it, and exit if it hits zero.
678 if (retrycnt != 0 && --retrycnt == 0)
681 if ((opflags & (BGRND | ISBGRND)) == BGRND) {
682 warnx("Cannot immediately mount %s:%s, backgrounding",
685 if (daemon(0, 0) != 0)
690 nfsargsp->hostname = nam;
691 /* Add mounted filesystem to PATH_MOUNTTAB */
692 if (!add_mtab(hostp, spec))
693 warnx("can't update %s for %s:%s", PATH_MOUNTTAB, hostp, spec);
698 * Try to set up the NFS arguments according to the address
699 * (and possibly port) specified by `sinp'.
701 * Returns TRYRET_SUCCESS if successful, or:
702 * TRYRET_TIMEOUT The server did not respond.
703 * TRYRET_REMOTEERR The server reported an error.
704 * TRYRET_LOCALERR Local failure.
706 * In all error cases, *errstr will be set to a statically-allocated string
707 * describing the error.
710 nfs_tryproto(struct nfs_args *nfsargsp, struct sockaddr_in *sinp, char *hostp,
711 char *spec, char **errstr)
713 static char errbuf[256];
714 struct sockaddr_in sin, tmpsin;
715 struct nfhret nfhret;
717 struct rpc_err rpcerr;
719 int doconnect, nfsvers, mntvers, so;
721 enum mountmode trymntmode;
723 trymntmode = mountmode;
726 sin = tmpsin = *sinp;
729 if (trymntmode == V2) {
737 /* Check that the server (nfsd) responds on the port we have chosen. */
741 if (nfsargsp->sotype == SOCK_STREAM)
742 clp = clnttcp_create(&sin, RPCPROG_NFS, nfsvers, &so, 0, 0);
744 clp = clntudp_create(&sin, RPCPROG_NFS, nfsvers, try, &so);
746 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
747 hostp, spec, clnt_spcreateerror("nfsd: RPCPROG_NFS"));
748 return (returncode(rpc_createerr.cf_stat,
749 &rpc_createerr.cf_error));
751 if (nfsargsp->sotype == SOCK_DGRAM &&
752 !(nfsargsp->flags & NFSMNT_NOCONN)) {
754 * Use connect(), to match what the kernel does. This
755 * catches cases where the server responds from the
756 * wrong source address.
759 if (!clnt_control(clp, CLSET_CONNECT, (char *)&doconnect)) {
761 snprintf(errbuf, sizeof errbuf,
762 "%s:%s: CLSET_CONNECT failed", hostp, spec);
763 return (TRYRET_LOCALERR);
769 stat = clnt_call(clp, NFSPROC_NULL, xdr_void, NULL, xdr_void, NULL,
771 if (stat != RPC_SUCCESS) {
772 if (stat == RPC_PROGVERSMISMATCH && trymntmode == ANY) {
777 clnt_geterr(clp, &rpcerr);
778 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
779 hostp, spec, clnt_sperror(clp, "NFSPROC_NULL"));
781 return (returncode(stat, &rpcerr));
785 /* Send the RPCMNT_MOUNT RPC to get the root filehandle. */
790 if (mnttcp_ok && nfsargsp->sotype == SOCK_STREAM)
791 clp = clnttcp_create(&tmpsin, RPCPROG_MNT, mntvers, &so, 0, 0);
793 clp = clntudp_create(&tmpsin, RPCPROG_MNT, mntvers, try, &so);
795 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
796 hostp, spec, clnt_spcreateerror("RPCMNT: clnt_create"));
797 return (returncode(rpc_createerr.cf_stat,
798 &rpc_createerr.cf_error));
800 clp->cl_auth = authunix_create_default();
801 if (nfsargsp->flags & NFSMNT_KERB)
802 nfhret.auth = RPCAUTH_KERB4;
804 nfhret.auth = RPCAUTH_UNIX;
805 nfhret.vers = mntvers;
806 stat = clnt_call(clp, RPCMNT_MOUNT, xdr_dir, spec, xdr_fh, &nfhret,
808 auth_destroy(clp->cl_auth);
809 if (stat != RPC_SUCCESS) {
810 if (stat == RPC_PROGVERSMISMATCH && trymntmode == ANY) {
815 clnt_geterr(clp, &rpcerr);
816 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
817 hostp, spec, clnt_sperror(clp, "RPCPROG_MNT"));
819 return (returncode(stat, &rpcerr));
823 if (nfhret.stat != 0) {
824 snprintf(errbuf, sizeof errbuf, "%s:%s: %s",
825 hostp, spec, strerror(nfhret.stat));
826 return (TRYRET_REMOTEERR);
830 * Store the filehandle and server address in nfsargsp, making
831 * sure to copy any locally allocated structures.
833 nfsargsp->addrlen = sin.sin_len;
834 nfsargsp->addr = malloc(nfsargsp->addrlen);
835 nfsargsp->fhsize = nfhret.fhsize;
836 nfsargsp->fh = malloc(nfsargsp->fhsize);
837 if (nfsargsp->addr == NULL || nfsargsp->fh == NULL)
839 bcopy(&sin, nfsargsp->addr, nfsargsp->addrlen);
840 bcopy(nfhret.nfh, nfsargsp->fh, nfsargsp->fhsize);
843 nfsargsp->flags |= NFSMNT_NFSV3;
845 nfsargsp->flags &= ~NFSMNT_NFSV3;
847 return (TRYRET_SUCCESS);
851 * Catagorise a RPC return status and error into an `enum tryret'
855 returncode(enum clnt_stat stat, struct rpc_err *rpcerr)
859 return (TRYRET_TIMEOUT);
860 case RPC_PMAPFAILURE:
861 case RPC_PROGNOTREGISTERED:
862 case RPC_PROGVERSMISMATCH:
863 /* XXX, these can be local or remote. */
866 return (TRYRET_REMOTEERR);
867 case RPC_SYSTEMERROR:
868 switch (rpcerr->re_errno) {
870 return (TRYRET_TIMEOUT);
874 return (TRYRET_REMOTEERR);
880 return (TRYRET_LOCALERR);
884 * xdr routines for mount rpc's
891 return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
897 register struct nfhret *np;
900 long auth, authcnt, authfnd = 0;
902 if (!xdr_u_long(xdrsp, &np->stat))
908 np->fhsize = NFSX_V2FH;
909 return (xdr_opaque(xdrsp, (caddr_t)np->nfh, NFSX_V2FH));
911 if (!xdr_long(xdrsp, &np->fhsize))
913 if (np->fhsize <= 0 || np->fhsize > NFSX_V3FHMAX)
915 if (!xdr_opaque(xdrsp, (caddr_t)np->nfh, np->fhsize))
917 if (!xdr_long(xdrsp, &authcnt))
919 for (i = 0; i < authcnt; i++) {
920 if (!xdr_long(xdrsp, &auth))
922 if (auth == np->auth)
926 * Some servers, such as DEC's OSF/1 return a nil authenticator
927 * list to indicate RPCAUTH_UNIX.
929 if (!authfnd && (authcnt > 0 || np->auth != RPCAUTH_UNIX))
939 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
940 "usage: mount_nfs [-23KNPTUbcdilqs] [-D deadthresh] [-I readdirsize]",
941 " [-L leaseterm] [-R retrycnt] [-a maxreadahead]",
942 " [-g maxgroups] [-m realm] [-o options] [-r readsize]",
943 " [-t timeout] [-w writesize] [-x retrans] rhost:path node");