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. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * @(#) Copyright (c) 1992, 1993, 1994 The Regents of the University of California. All rights reserved.
33 * @(#)mount_nfs.c 8.11 (Berkeley) 5/4/95
34 * $FreeBSD: src/sbin/mount_nfs/mount_nfs.c,v 1.36.2.6 2003/05/13 14:45:40 trhodes Exp $
37 #include <sys/param.h>
38 #include <sys/mount.h>
39 #include <sys/socket.h>
41 #include <sys/syslog.h>
44 #include <rpc/pmap_clnt.h>
45 #include <rpc/pmap_prot.h>
47 #include <vfs/nfs/rpcv2.h>
48 #include <vfs/nfs/nfsproto.h>
49 #include <vfs/nfs/nfs.h>
51 #include <arpa/inet.h>
68 #define ALTF_NOCONN 0x2
69 #define ALTF_DUMBTIMR 0x4
71 #define ALTF_KERB 0x10
72 #define ALTF_NFSV3 0x20
73 #define ALTF_RDIRPLUS 0x40
74 #define ALTF_CACHE 0x80
75 #define ALTF_RESVPORT 0x100
76 #define ALTF_SEQPACKET 0x200
77 #define ALTF_UNUSED400 0x400
78 #define ALTF_SOFT 0x800
79 #define ALTF_TCP 0x1000
80 #define ALTF_PORT 0x2000
81 #define ALTF_NFSV2 0x4000
82 #define ALTF_ACREGMIN 0x8000
83 #define ALTF_ACREGMAX 0x10000
84 #define ALTF_ACDIRMIN 0x20000
85 #define ALTF_ACDIRMAX 0x40000
87 struct mntopt mopts[] = {
92 { "bg", 0, ALTF_BG, 1 },
93 { "conn", 1, ALTF_NOCONN, 1 },
94 { "dumbtimer", 0, ALTF_DUMBTIMR, 1 },
95 { "intr", 0, ALTF_INTR, 1 },
97 { "kerb", 0, ALTF_KERB, 1 },
99 { "nfsv3", 0, ALTF_NFSV3, 1 },
100 { "rdirplus", 0, ALTF_RDIRPLUS, 1 },
101 { "mntudp", 1, ALTF_TCP, 1 },
102 { "resvport", 0, ALTF_RESVPORT, 1 },
103 { "soft", 0, ALTF_SOFT, 1 },
104 { "tcp", 0, ALTF_TCP, 1 },
105 { "udp", 1, ALTF_TCP, 1 },
106 { "port=", 0, ALTF_PORT, 1 },
107 { "nfsv2", 0, ALTF_NFSV2, 1 },
108 { "acregmin=", 0, ALTF_ACREGMIN, 1 },
109 { "acregmax=", 0, ALTF_ACREGMAX, 1 },
110 { "acdirmin=", 0, ALTF_ACDIRMIN, 1 },
111 { "acdirmax=", 0, ALTF_ACDIRMAX, 1 },
112 { "cache", 0, ALTF_CACHE, 1 },
116 struct nfs_args nfsdefargs = {
119 sizeof (struct sockaddr_in),
142 /* Table for af,sotype -> netid conversions. */
148 {"udp", AF_INET, SOCK_DGRAM},
149 {"tcp", AF_INET, SOCK_STREAM},
150 {"udp6", AF_INET6, SOCK_DGRAM},
151 {"tcp6", AF_INET6, SOCK_STREAM},
160 u_char nfh[NFSX_V3FHMAX];
167 char *portspec = NULL; /* Server nfs port; NULL means look up via rpcbind. */
176 char realm[REALM_SZ];
181 struct nfsrpc_nickverf kverf;
182 struct nfsrpc_fullblock kin, kout;
186 NFSKERBKEYSCHED_T kerb_keysched;
189 /* Return codes for nfs_tryproto. */
192 TRYRET_TIMEOUT, /* No response received. */
193 TRYRET_REMOTEERR, /* Error received from remote server. */
194 TRYRET_LOCALERR /* Local failure. */
198 void set_rpc_maxgrouplist(int);
200 static struct netconfig *getnetconf_cached(const char *);
201 static const char *netidbytype(int, int);
202 static int getnfsargs(char *, struct nfs_args *);
203 static void usage(void) __dead2;
204 static int xdr_dir(XDR *, char *);
205 static int xdr_fh(XDR *, struct nfhret *);
207 nfs_tryproto(struct nfs_args *, struct addrinfo *,
208 char *, char *, char **);
210 returncode(enum clnt_stat, struct rpc_err *);
213 * Used to set mount flags with getmntopts. Call with dir=TRUE to
214 * initialize altflags from the current mount flags. Call with
215 * dir=FALSE to update mount flags with the new value of altflags after
216 * the call to getmntopts.
219 set_flags(int* altflags, int* nfsflags, int dir)
223 if (*nfsflags & NFSMNT_##nf) \
224 *altflags |= ALTF_##af; \
226 *altflags &= ~ALTF_##af; \
228 if (*altflags & ALTF_##af) \
229 *nfsflags |= NFSMNT_##nf; \
231 *nfsflags &= ~NFSMNT_##nf; \
257 main(int argc, char **argv)
260 struct nfs_args *nfsargsp;
261 struct nfs_args nfsargs;
262 struct nfsd_cargs ncd;
263 int mntflags, altflags, nfssvc_flag, num;
264 char *name, *p, *spec;
265 char mntpath[MAXPATHLEN];
272 strcpy(realm, KRB_REALM);
273 if (sizeof (struct nfsrpc_nickverf) != RPCX_NICKVERF ||
274 sizeof (struct nfsrpc_fullblock) != RPCX_FULLBLOCK ||
275 ((char *)&ktick.kt) - ((char *)&ktick) != NFSX_UNSIGNED ||
276 ((char *)ktick.kt.dat) - ((char *)&ktick) != 2 * NFSX_UNSIGNED)
277 fprintf(stderr, "Yikes! NFSKERB structs not packed!!\n");
281 altflags = ALTF_TCP | ALTF_RDIRPLUS;
282 nfsargs = nfsdefargs;
284 if (altflags & ALTF_TCP) {
285 nfsproto = IPPROTO_TCP;
286 nfsargsp->sotype = SOCK_STREAM;
288 nfsproto = IPPROTO_UDP;
289 nfsargsp->sotype = SOCK_DGRAM;
291 while ((c = getopt(argc, argv,
292 "23a:bcdD:g:I:iKlm:No:PR:r:sTt:w:x:U")) != -1)
301 num = strtol(optarg, &p, 10);
303 errx(1, "illegal -a value -- %s", optarg);
304 nfsargsp->readahead = num;
305 nfsargsp->flags |= NFSMNT_READAHEAD;
311 nfsargsp->flags |= NFSMNT_NOCONN;
314 num = strtol(optarg, &p, 10);
316 errx(1, "illegal -D value -- %s", optarg);
317 nfsargsp->deadthresh = num;
318 nfsargsp->flags |= NFSMNT_DEADTHRESH;
321 nfsargsp->flags |= NFSMNT_DUMBTIMR;
325 num = strtol(optarg, &p, 10);
327 errx(1, "illegal -g value -- %s", optarg);
328 set_rpc_maxgrouplist(num);
329 nfsargsp->maxgrouplist = num;
330 nfsargsp->flags |= NFSMNT_MAXGRPS;
334 num = strtol(optarg, &p, 10);
336 errx(1, "illegal -I value -- %s", optarg);
337 nfsargsp->readdirsize = num;
338 nfsargsp->flags |= NFSMNT_READDIRSIZE;
341 nfsargsp->flags |= NFSMNT_INT;
345 nfsargsp->flags |= NFSMNT_KERB;
349 nfsargsp->flags |= NFSMNT_RDIRPLUS;
353 strncpy(realm, optarg, REALM_SZ - 1);
354 realm[REALM_SZ - 1] = '\0';
358 nfsargsp->flags &= ~NFSMNT_RESVPORT;
361 set_flags(&altflags, &nfsargsp->flags, TRUE);
362 altflags |= ALTF_RDIRPLUS;
363 if (nfsproto == IPPROTO_TCP)
364 altflags |= ALTF_TCP;
366 altflags |= ALTF_NFSV2;
367 else if (mountmode == V3)
368 altflags |= ALTF_NFSV3;
369 getmntopts(optarg, mopts, &mntflags, &altflags);
370 set_flags(&altflags, &nfsargsp->flags, FALSE);
372 * Handle altflags which don't map directly to
375 if(altflags & ALTF_BG)
377 if (altflags & ALTF_TCP) {
378 nfsproto = IPPROTO_TCP;
379 nfsargsp->sotype = SOCK_STREAM;
381 nfsproto = IPPROTO_UDP;
382 nfsargsp->sotype = SOCK_DGRAM;
384 if(altflags & ALTF_PORT) {
386 * XXX Converting from a string to an int
387 * and back again is silly, and we should
388 * allow /etc/services names.
390 asprintf(&portspec, "%d",
391 atoi(strstr(optarg, "port=") + 5));
392 if (portspec == NULL)
396 if(altflags & ALTF_NFSV2)
398 if(altflags & ALTF_NFSV3)
400 if(altflags & ALTF_ACREGMIN)
401 nfsargsp->acregmin = atoi(strstr(optarg,
403 if(altflags & ALTF_ACREGMAX)
404 nfsargsp->acregmax = atoi(strstr(optarg,
406 if(altflags & ALTF_ACDIRMIN)
407 nfsargsp->acdirmin = atoi(strstr(optarg,
409 if(altflags & ALTF_ACDIRMAX)
410 nfsargsp->acdirmax = atoi(strstr(optarg,
414 /* obsolete for NFSMNT_RESVPORT, now default */
417 num = strtol(optarg, &p, 10);
419 errx(1, "illegal -R value -- %s", optarg);
423 num = strtol(optarg, &p, 10);
425 errx(1, "illegal -r value -- %s", optarg);
426 nfsargsp->rsize = num;
427 nfsargsp->flags |= NFSMNT_RSIZE;
430 nfsargsp->flags |= NFSMNT_SOFT;
433 nfsargsp->sotype = SOCK_STREAM;
434 nfsproto = IPPROTO_TCP;
435 altflags |= ALTF_TCP;
438 num = strtol(optarg, &p, 10);
440 errx(1, "illegal -t value -- %s", optarg);
441 nfsargsp->timeo = num;
442 nfsargsp->flags |= NFSMNT_TIMEO;
445 num = strtol(optarg, &p, 10);
447 errx(1, "illegal -w value -- %s", optarg);
448 nfsargsp->wsize = num;
449 nfsargsp->flags |= NFSMNT_WSIZE;
452 num = strtol(optarg, &p, 10);
454 errx(1, "illegal -x value -- %s", optarg);
455 nfsargsp->retrans = num;
456 nfsargsp->flags |= NFSMNT_RETRANS;
459 nfsargsp->sotype = SOCK_DGRAM;
460 nfsproto = IPPROTO_UDP;
461 altflags &= ~ALTF_TCP;
479 /* The default is to keep retrying forever. */
481 if (!getnfsargs(spec, nfsargsp))
484 /* resolve the mountpoint with realpath(3) */
485 checkpath(name, mntpath);
487 error = getvfsbyname("nfs", &vfc);
488 if (error && vfsisloadable("nfs")) {
490 err(EX_OSERR, "vfsload(nfs)");
491 endvfsent(); /* clear cache */
492 error = getvfsbyname("nfs", &vfc);
495 errx(EX_OSERR, "nfs filesystem is not available");
497 if (mount(vfc.vfc_name, mntpath, mntflags, nfsargsp))
498 err(1, "%s", mntpath);
499 if (nfsargsp->flags & NFSMNT_KERB) {
500 if ((opflags & ISBGRND) == 0) {
501 if (daemon(0, 0) != 0)
504 openlog("mount_nfs", LOG_PID, LOG_DAEMON);
505 nfssvc_flag = NFSSVC_MNTD;
506 ncd.ncd_dirp = mntpath;
507 while (nfssvc(nfssvc_flag, (caddr_t)&ncd) < 0) {
508 if (errno != ENEEDAUTH) {
509 syslog(LOG_ERR, "nfssvc err %m");
513 NFSSVC_MNTD | NFSSVC_GOTAUTH | NFSSVC_AUTHINFAIL;
516 * Set up as ncd_authuid for the kerberos call.
517 * Must set ruid to ncd_authuid and reset the
518 * ticket name iff ncd_authuid is not the same
519 * as last time, so that the right ticket file
521 * Get the Kerberos credential structure so that
522 * we have the session key and get a ticket for
524 * For more info see the IETF Draft "Authentication
527 if (ncd.ncd_authuid != last_ruid) {
529 sprintf(buf, "%s%d", TKT_ROOT, ncd.ncd_authuid);
530 krb_set_tkt_string(buf);
531 last_ruid = ncd.ncd_authuid;
533 setreuid(ncd.ncd_authuid, 0);
534 kret = krb_get_cred(NFS_KERBSRV, inst, realm, &kcr);
535 if (kret == RET_NOTKT) {
536 kret = get_ad_tkt(NFS_KERBSRV, inst, realm,
538 if (kret == KSUCCESS)
539 kret = krb_get_cred(NFS_KERBSRV, inst, realm,
542 if (kret == KSUCCESS)
543 kret = krb_mk_req(&ktick.kt, NFS_KERBSRV, inst,
547 * Fill in the AKN_FULLNAME authenticator and verifier.
548 * Along with the Kerberos ticket, we need to build
549 * the timestamp verifier and encrypt it in CBC mode.
551 if (kret == KSUCCESS &&
552 ktick.kt.length <= (RPCAUTH_MAXSIZ-3*NFSX_UNSIGNED)
553 && gettimeofday(&ktv, NULL) == 0) {
554 ncd.ncd_authtype = RPCAUTH_KERB4;
555 ncd.ncd_authstr = (u_char *)&ktick;
556 ncd.ncd_authlen = nfsm_rndup(ktick.kt.length) +
558 ncd.ncd_verfstr = (u_char *)&kverf;
559 ncd.ncd_verflen = sizeof (kverf);
560 memmove(ncd.ncd_key, kcr.session,
561 sizeof (kcr.session));
562 kin.t1 = htonl(ktv.tv_sec);
563 kin.t2 = htonl(ktv.tv_usec);
564 kin.w1 = htonl(NFS_KERBTTL);
565 kin.w2 = htonl(NFS_KERBTTL - 1);
566 bzero((caddr_t)kivec, sizeof (kivec));
569 * Encrypt kin in CBC mode using the session
575 * Finally, fill the timestamp verifier into the
576 * authenticator and verifier.
578 ktick.kind = htonl(RPCAKN_FULLNAME);
579 kverf.kind = htonl(RPCAKN_FULLNAME);
580 NFS_KERBW1(ktick.kt) = kout.w1;
581 ktick.kt.length = htonl(ktick.kt.length);
582 kverf.verf.t1 = kout.t1;
583 kverf.verf.t2 = kout.t2;
584 kverf.verf.w2 = kout.w2;
585 nfssvc_flag = NFSSVC_MNTD | NFSSVC_GOTAUTH;
595 getnfsargs(char *spec, struct nfs_args *nfsargsp)
597 struct addrinfo hints, *ai_nfs, *ai;
599 char host[NI_MAXHOST], serv[NI_MAXSERV];
602 int ecode, speclen, remoteerr;
603 char *hostp, *delimp, *errstr;
608 static char nam[MNAMELEN + 1];
610 if ((delimp = strrchr(spec, ':')) != NULL) {
613 } else if ((delimp = strrchr(spec, '@')) != NULL) {
614 warnx("path@server syntax is deprecated, use server:path");
617 warnx("no <host>:<dirpath> nfs-name");
623 * If there has been a trailing slash at mounttime it seems
624 * that some mountd implementations fail to remove the mount
625 * entries from their mountlist while unmounting.
627 for (speclen = strlen(spec);
628 speclen > 1 && spec[speclen - 1] == '/';
630 spec[speclen - 1] = '\0';
631 if (strlen(hostp) + strlen(spec) + 1 > MNAMELEN) {
632 warnx("%s:%s: %s", hostp, spec, strerror(ENAMETOOLONG));
635 /* Make both '@' and ':' notations equal */
636 if (*hostp != '\0') {
638 memmove(nam, hostp, len);
640 memmove(nam + len + 1, spec, speclen);
641 nam[len + speclen + 1] = '\0';
645 * Handle an internet host address and reverse resolve it if
648 memset(&hints, 0, sizeof hints);
649 hints.ai_flags = AI_NUMERICHOST;
650 hints.ai_socktype = nfsargsp->sotype;
651 if (getaddrinfo(hostp, portspec, &hints, &ai_nfs) == 0) {
653 if ((nfsargsp->flags & NFSMNT_KERB)) {
655 if (getnameinfo(ai_nfs->ai_addr, ai_nfs->ai_addrlen,
656 host, sizeof host, serv, sizeof serv, 0) != 0) {
657 warnx("can't reverse resolve net address");
665 if ((ecode = getaddrinfo(hostp, portspec, &hints, &ai_nfs))
667 if (portspec == NULL)
668 errx(1, "%s: %s", hostp, gai_strerror(ecode));
670 errx(1, "%s:%s: %s", hostp, portspec,
671 gai_strerror(ecode));
676 if (nfsargsp->flags & NFSMNT_KERB) {
677 strncpy(inst, hp->h_name, INST_SZ);
678 inst[INST_SZ - 1] = '\0';
679 if (cp = strchr(inst, '.'))
684 ret = TRYRET_LOCALERR;
687 * Try each entry returned by getaddrinfo(). Note the
688 * occurence of remote errors by setting `remoteerr'.
691 for (ai = ai_nfs; ai != NULL; ai = ai->ai_next) {
692 ret = nfs_tryproto(nfsargsp, ai, hostp, spec, &errstr);
693 if (ret == TRYRET_SUCCESS)
695 if (ret != TRYRET_LOCALERR)
697 if ((opflags & ISBGRND) == 0)
698 fprintf(stderr, "%s\n", errstr);
700 if (ret == TRYRET_SUCCESS)
703 /* Exit if all errors were local. */
708 * If retrycnt == 0, we are to keep retrying forever.
709 * Otherwise decrement it, and exit if it hits zero.
711 if (retrycnt != 0 && --retrycnt == 0)
714 if ((opflags & (BGRND | ISBGRND)) == BGRND) {
715 warnx("Cannot immediately mount %s:%s, backgrounding",
718 if (daemon(0, 0) != 0)
723 freeaddrinfo(ai_nfs);
724 nfsargsp->hostname = nam;
725 /* Add mounted filesystem to PATH_MOUNTTAB */
726 if (!add_mtab(hostp, spec))
727 warnx("can't update %s for %s:%s", PATH_MOUNTTAB, hostp, spec);
732 * Try to set up the NFS arguments according to the address
733 * family, protocol (and possibly port) specified in `ai'.
735 * Returns TRYRET_SUCCESS if successful, or:
736 * TRYRET_TIMEOUT The server did not respond.
737 * TRYRET_REMOTEERR The server reported an error.
738 * TRYRET_LOCALERR Local failure.
740 * In all error cases, *errstr will be set to a statically-allocated string
741 * describing the error.
744 nfs_tryproto(struct nfs_args *nfsargsp, struct addrinfo *ai, char *hostp,
745 char *spec, char **errstr)
747 static char errbuf[256];
748 struct sockaddr_storage nfs_ss;
749 struct netbuf nfs_nb;
750 struct nfhret nfhret;
752 struct rpc_err rpcerr;
754 struct netconfig *nconf, *nconf_mnt;
755 const char *netid, *netid_mnt;
756 int doconnect, nfsvers, mntvers;
757 enum clnt_stat status;
758 enum mountmode trymntmode;
760 trymntmode = mountmode;
764 if ((netid = netidbytype(ai->ai_family, nfsargsp->sotype)) == NULL) {
765 snprintf(errbuf, sizeof errbuf,
766 "af %d sotype %d not supported", ai->ai_family,
768 return (TRYRET_LOCALERR);
770 if ((nconf = getnetconf_cached(netid)) == NULL) {
771 snprintf(errbuf, sizeof errbuf, "%s: %s", netid, nc_sperror());
772 return (TRYRET_LOCALERR);
779 if (trymntmode == V2) {
787 if (portspec != NULL) {
788 /* `ai' contains the complete nfsd sockaddr. */
789 nfs_nb.buf = ai->ai_addr;
790 nfs_nb.len = nfs_nb.maxlen = ai->ai_addrlen;
792 /* Ask the remote rpcbind. */
793 nfs_nb.buf = &nfs_ss;
794 nfs_nb.len = nfs_nb.maxlen = sizeof nfs_ss;
796 if (!rpcb_getaddr(RPCPROG_NFS, nfsvers, nconf, &nfs_nb,
798 if (rpc_createerr.cf_stat == RPC_PROGVERSMISMATCH &&
803 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s",
805 clnt_spcreateerror("RPCPROG_NFS"));
806 return (returncode(rpc_createerr.cf_stat,
807 &rpc_createerr.cf_error));
811 /* Check that the server (nfsd) responds on the port we have chosen. */
812 clp = clnt_tli_create(RPC_ANYFD, nconf, &nfs_nb, RPCPROG_NFS, nfsvers,
815 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s", netid,
816 hostp, spec, clnt_spcreateerror("nfsd: RPCPROG_NFS"));
817 return (returncode(rpc_createerr.cf_stat,
818 &rpc_createerr.cf_error));
820 if (nfsargsp->sotype == SOCK_DGRAM &&
821 !(nfsargsp->flags & NFSMNT_NOCONN)) {
823 * Use connect(), to match what the kernel does. This
824 * catches cases where the server responds from the
825 * wrong source address.
828 if (!clnt_control(clp, CLSET_CONNECT, (char *)&doconnect)) {
830 snprintf(errbuf, sizeof errbuf,
831 "[%s] %s:%s: CLSET_CONNECT failed", netid, hostp,
833 return (TRYRET_LOCALERR);
839 status = clnt_call(clp, NFSPROC_NULL, (xdrproc_t)xdr_void, NULL,
840 (xdrproc_t)xdr_void, NULL, try);
841 if (status != RPC_SUCCESS) {
842 if (status == RPC_PROGVERSMISMATCH && trymntmode == ANY) {
847 clnt_geterr(clp, &rpcerr);
848 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s", netid,
849 hostp, spec, clnt_sperror(clp, "NFSPROC_NULL"));
851 return (returncode(status, &rpcerr));
855 /* Send the RPCMNT_MOUNT RPC to get the root filehandle. */
858 clp = clnt_tp_create(hostp, RPCPROG_MNT, mntvers, nconf_mnt);
860 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s", netid_mnt,
861 hostp, spec, clnt_spcreateerror("RPCMNT: clnt_create"));
862 return (returncode(rpc_createerr.cf_stat,
863 &rpc_createerr.cf_error));
865 clp->cl_auth = authsys_create_default();
866 if (nfsargsp->flags & NFSMNT_KERB)
867 nfhret.auth = RPCAUTH_KERB4;
869 nfhret.auth = RPCAUTH_UNIX;
870 nfhret.vers = mntvers;
871 status = clnt_call(clp, RPCMNT_MOUNT, (xdrproc_t)xdr_dir, spec,
872 (xdrproc_t)xdr_fh, &nfhret, try);
873 auth_destroy(clp->cl_auth);
874 if (status != RPC_SUCCESS) {
875 if (status == RPC_PROGVERSMISMATCH && trymntmode == ANY) {
880 clnt_geterr(clp, &rpcerr);
881 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s", netid_mnt,
882 hostp, spec, clnt_sperror(clp, "RPCPROG_MNT"));
884 return (returncode(status, &rpcerr));
888 if (nfhret.stat != 0) {
889 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s", netid_mnt,
890 hostp, spec, strerror(nfhret.stat));
891 return (TRYRET_REMOTEERR);
895 * Store the filehandle and server address in nfsargsp, making
896 * sure to copy any locally allocated structures.
898 nfsargsp->addrlen = nfs_nb.len;
899 nfsargsp->addr = malloc(nfsargsp->addrlen);
900 nfsargsp->fhsize = nfhret.fhsize;
901 nfsargsp->fh = malloc(nfsargsp->fhsize);
902 if (nfsargsp->addr == NULL || nfsargsp->fh == NULL)
904 bcopy(nfs_nb.buf, nfsargsp->addr, nfsargsp->addrlen);
905 bcopy(nfhret.nfh, nfsargsp->fh, nfsargsp->fhsize);
908 nfsargsp->flags |= NFSMNT_NFSV3;
910 nfsargsp->flags &= ~NFSMNT_NFSV3;
912 return (TRYRET_SUCCESS);
917 * Catagorise a RPC return status and error into an `enum tryret'
921 returncode(enum clnt_stat status, struct rpc_err *rpcerr)
925 return (TRYRET_TIMEOUT);
926 case RPC_PMAPFAILURE:
927 case RPC_PROGNOTREGISTERED:
928 case RPC_PROGVERSMISMATCH:
929 /* XXX, these can be local or remote. */
932 return (TRYRET_REMOTEERR);
933 case RPC_SYSTEMERROR:
934 switch (rpcerr->re_errno) {
936 return (TRYRET_TIMEOUT);
940 return (TRYRET_REMOTEERR);
946 return (TRYRET_LOCALERR);
950 * Look up a netid based on an address family and socket type.
951 * `af' is the address family, and `sotype' is SOCK_DGRAM or SOCK_STREAM.
953 * XXX there should be a library function for this.
956 netidbytype(int af, int sotype)
960 for (p = nc_protos; p->netid != NULL; p++) {
961 if (af != p->af || sotype != p->sotype)
969 * Look up a netconfig entry based on a netid, and cache the result so
970 * that we don't need to remember to call freenetconfigent().
972 * Otherwise it behaves just like getnetconfigent(), so nc_*error()
975 static struct netconfig *
976 getnetconf_cached(const char *netid)
978 static struct nc_entry {
979 struct netconfig *nconf;
980 struct nc_entry *next;
983 struct netconfig *nconf;
985 for (p = head; p != NULL; p = p->next)
986 if (strcmp(netid, p->nconf->nc_netid) == 0)
989 if ((nconf = getnetconfigent(netid)) == NULL)
991 if ((p = malloc(sizeof(*p))) == NULL)
1001 * xdr routines for mount rpc's
1004 xdr_dir(XDR *xdrsp, char *dirp)
1006 return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
1010 xdr_fh(XDR *xdrsp, struct nfhret *np)
1013 long auth, authcnt, authfnd = 0;
1015 if (!xdr_u_long(xdrsp, &np->stat))
1021 np->fhsize = NFSX_V2FH;
1022 return (xdr_opaque(xdrsp, (caddr_t)np->nfh, NFSX_V2FH));
1024 if (!xdr_long(xdrsp, &np->fhsize))
1026 if (np->fhsize <= 0 || np->fhsize > NFSX_V3FHMAX)
1028 if (!xdr_opaque(xdrsp, (caddr_t)np->nfh, np->fhsize))
1030 if (!xdr_long(xdrsp, &authcnt))
1032 for (i = 0; i < authcnt; i++) {
1033 if (!xdr_long(xdrsp, &auth))
1035 if (auth == np->auth)
1039 * Some servers, such as DEC's OSF/1 return a nil authenticator
1040 * list to indicate RPCAUTH_UNIX.
1042 if (!authfnd && (authcnt > 0 || np->auth != RPCAUTH_UNIX))
1052 fprintf(stderr, "%s\n%s\n%s\n%s\n",
1053 "usage: mount_nfs [-23KNPTUbcdils] [-D deadthresh] [-I readdirsize]",
1054 " [-R retrycnt] [-a maxreadahead]",
1055 " [-g maxgroups] [-m realm] [-o options] [-r readsize]",
1056 " [-t timeout] [-w writesize] [-x retrans] rhost:path node");