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 $
41 #include <sys/param.h>
42 #include <sys/mount.h>
43 #include <sys/socket.h>
45 #include <sys/syslog.h>
48 #include <rpc/pmap_clnt.h>
49 #include <rpc/pmap_prot.h>
51 #include <vfs/nfs/rpcv2.h>
52 #include <vfs/nfs/nfsproto.h>
53 #include <vfs/nfs/nfs.h>
55 #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_CACHE 0x80
79 #define ALTF_RESVPORT 0x100
80 #define ALTF_SEQPACKET 0x200
81 #define ALTF_UNUSED400 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", 1, ALTF_TCP, 1 },
106 { "resvport", 0, ALTF_RESVPORT, 1 },
107 { "soft", 0, ALTF_SOFT, 1 },
108 { "tcp", 0, ALTF_TCP, 1 },
109 { "udp", 1, 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 },
116 { "cache", 0, ALTF_CACHE, 1 },
120 struct nfs_args nfsdefargs = {
123 sizeof (struct sockaddr_in),
146 /* Table for af,sotype -> netid conversions. */
152 {"udp", AF_INET, SOCK_DGRAM},
153 {"tcp", AF_INET, SOCK_STREAM},
154 {"udp6", AF_INET6, SOCK_DGRAM},
155 {"tcp6", AF_INET6, SOCK_STREAM},
164 u_char nfh[NFSX_V3FHMAX];
171 char *portspec = NULL; /* Server nfs port; NULL means look up via rpcbind. */
180 char realm[REALM_SZ];
185 struct nfsrpc_nickverf kverf;
186 struct nfsrpc_fullblock kin, kout;
190 NFSKERBKEYSCHED_T kerb_keysched;
193 /* Return codes for nfs_tryproto. */
196 TRYRET_TIMEOUT, /* No response received. */
197 TRYRET_REMOTEERR, /* Error received from remote server. */
198 TRYRET_LOCALERR /* Local failure. */
202 void set_rpc_maxgrouplist(int);
204 static struct netconfig *getnetconf_cached(const char *);
205 static const char *netidbytype(int, int);
206 static int getnfsargs(char *, struct nfs_args *);
207 static void usage(void) __dead2;
208 static int xdr_dir(XDR *, char *);
209 static int xdr_fh(XDR *, struct nfhret *);
211 nfs_tryproto(struct nfs_args *, struct addrinfo *,
212 char *, char *, char **);
214 returncode(enum clnt_stat, struct rpc_err *);
217 * Used to set mount flags with getmntopts. Call with dir=TRUE to
218 * initialize altflags from the current mount flags. Call with
219 * dir=FALSE to update mount flags with the new value of altflags after
220 * the call to getmntopts.
223 set_flags(int* altflags, int* nfsflags, int dir)
227 if (*nfsflags & NFSMNT_##nf) \
228 *altflags |= ALTF_##af; \
230 *altflags &= ~ALTF_##af; \
232 if (*altflags & ALTF_##af) \
233 *nfsflags |= NFSMNT_##nf; \
235 *nfsflags &= ~NFSMNT_##nf; \
261 main(int argc, char **argv)
264 struct nfs_args *nfsargsp;
265 struct nfs_args nfsargs;
266 struct nfsd_cargs ncd;
267 int mntflags, altflags, nfssvc_flag, num;
268 char *name, *p, *spec;
269 char mntpath[MAXPATHLEN];
276 strcpy(realm, KRB_REALM);
277 if (sizeof (struct nfsrpc_nickverf) != RPCX_NICKVERF ||
278 sizeof (struct nfsrpc_fullblock) != RPCX_FULLBLOCK ||
279 ((char *)&ktick.kt) - ((char *)&ktick) != NFSX_UNSIGNED ||
280 ((char *)ktick.kt.dat) - ((char *)&ktick) != 2 * NFSX_UNSIGNED)
281 fprintf(stderr, "Yikes! NFSKERB structs not packed!!\n");
285 altflags = ALTF_TCP | ALTF_RDIRPLUS;
286 nfsargs = nfsdefargs;
288 if (altflags & ALTF_TCP) {
289 nfsproto = IPPROTO_TCP;
290 nfsargsp->sotype = SOCK_STREAM;
292 nfsproto = IPPROTO_UDP;
293 nfsargsp->sotype = SOCK_DGRAM;
295 while ((c = getopt(argc, argv,
296 "23a:bcdD:g:I:iKlm:No:PR:r:sTt:w:x:U")) != -1)
305 num = strtol(optarg, &p, 10);
307 errx(1, "illegal -a value -- %s", optarg);
308 nfsargsp->readahead = num;
309 nfsargsp->flags |= NFSMNT_READAHEAD;
315 nfsargsp->flags |= NFSMNT_NOCONN;
318 num = strtol(optarg, &p, 10);
320 errx(1, "illegal -D value -- %s", optarg);
321 nfsargsp->deadthresh = num;
322 nfsargsp->flags |= NFSMNT_DEADTHRESH;
325 nfsargsp->flags |= NFSMNT_DUMBTIMR;
329 num = strtol(optarg, &p, 10);
331 errx(1, "illegal -g value -- %s", optarg);
332 set_rpc_maxgrouplist(num);
333 nfsargsp->maxgrouplist = num;
334 nfsargsp->flags |= NFSMNT_MAXGRPS;
338 num = strtol(optarg, &p, 10);
340 errx(1, "illegal -I value -- %s", optarg);
341 nfsargsp->readdirsize = num;
342 nfsargsp->flags |= NFSMNT_READDIRSIZE;
345 nfsargsp->flags |= NFSMNT_INT;
349 nfsargsp->flags |= NFSMNT_KERB;
353 nfsargsp->flags |= NFSMNT_RDIRPLUS;
357 strncpy(realm, optarg, REALM_SZ - 1);
358 realm[REALM_SZ - 1] = '\0';
362 nfsargsp->flags &= ~NFSMNT_RESVPORT;
365 set_flags(&altflags, &nfsargsp->flags, TRUE);
366 altflags |= ALTF_RDIRPLUS;
367 if (nfsproto == IPPROTO_TCP)
368 altflags |= ALTF_TCP;
370 altflags |= ALTF_NFSV2;
371 else if (mountmode == V3)
372 altflags |= ALTF_NFSV3;
373 getmntopts(optarg, mopts, &mntflags, &altflags);
374 set_flags(&altflags, &nfsargsp->flags, FALSE);
376 * Handle altflags which don't map directly to
379 if(altflags & ALTF_BG)
381 if (altflags & ALTF_TCP) {
382 nfsproto = IPPROTO_TCP;
383 nfsargsp->sotype = SOCK_STREAM;
385 nfsproto = IPPROTO_UDP;
386 nfsargsp->sotype = SOCK_DGRAM;
388 if(altflags & ALTF_PORT) {
390 * XXX Converting from a string to an int
391 * and back again is silly, and we should
392 * allow /etc/services names.
394 asprintf(&portspec, "%d",
395 atoi(strstr(optarg, "port=") + 5));
396 if (portspec == NULL)
400 if(altflags & ALTF_NFSV2)
402 if(altflags & ALTF_NFSV3)
404 if(altflags & ALTF_ACREGMIN)
405 nfsargsp->acregmin = atoi(strstr(optarg,
407 if(altflags & ALTF_ACREGMAX)
408 nfsargsp->acregmax = atoi(strstr(optarg,
410 if(altflags & ALTF_ACDIRMIN)
411 nfsargsp->acdirmin = atoi(strstr(optarg,
413 if(altflags & ALTF_ACDIRMAX)
414 nfsargsp->acdirmax = atoi(strstr(optarg,
418 /* obsolete for NFSMNT_RESVPORT, now default */
421 num = strtol(optarg, &p, 10);
423 errx(1, "illegal -R value -- %s", optarg);
427 num = strtol(optarg, &p, 10);
429 errx(1, "illegal -r value -- %s", optarg);
430 nfsargsp->rsize = num;
431 nfsargsp->flags |= NFSMNT_RSIZE;
434 nfsargsp->flags |= NFSMNT_SOFT;
437 nfsargsp->sotype = SOCK_STREAM;
438 nfsproto = IPPROTO_TCP;
439 altflags |= ALTF_TCP;
442 num = strtol(optarg, &p, 10);
444 errx(1, "illegal -t value -- %s", optarg);
445 nfsargsp->timeo = num;
446 nfsargsp->flags |= NFSMNT_TIMEO;
449 num = strtol(optarg, &p, 10);
451 errx(1, "illegal -w value -- %s", optarg);
452 nfsargsp->wsize = num;
453 nfsargsp->flags |= NFSMNT_WSIZE;
456 num = strtol(optarg, &p, 10);
458 errx(1, "illegal -x value -- %s", optarg);
459 nfsargsp->retrans = num;
460 nfsargsp->flags |= NFSMNT_RETRANS;
463 nfsargsp->sotype = SOCK_DGRAM;
464 nfsproto = IPPROTO_UDP;
465 altflags &= ~ALTF_TCP;
483 /* The default is to keep retrying forever. */
485 if (!getnfsargs(spec, nfsargsp))
488 /* resolve the mountpoint with realpath(3) */
489 checkpath(name, mntpath);
491 error = getvfsbyname("nfs", &vfc);
492 if (error && vfsisloadable("nfs")) {
494 err(EX_OSERR, "vfsload(nfs)");
495 endvfsent(); /* clear cache */
496 error = getvfsbyname("nfs", &vfc);
499 errx(EX_OSERR, "nfs filesystem is not available");
501 if (mount(vfc.vfc_name, mntpath, mntflags, nfsargsp))
502 err(1, "%s", mntpath);
503 if (nfsargsp->flags & NFSMNT_KERB) {
504 if ((opflags & ISBGRND) == 0) {
505 if (daemon(0, 0) != 0)
508 openlog("mount_nfs", LOG_PID, LOG_DAEMON);
509 nfssvc_flag = NFSSVC_MNTD;
510 ncd.ncd_dirp = mntpath;
511 while (nfssvc(nfssvc_flag, (caddr_t)&ncd) < 0) {
512 if (errno != ENEEDAUTH) {
513 syslog(LOG_ERR, "nfssvc err %m");
517 NFSSVC_MNTD | NFSSVC_GOTAUTH | NFSSVC_AUTHINFAIL;
520 * Set up as ncd_authuid for the kerberos call.
521 * Must set ruid to ncd_authuid and reset the
522 * ticket name iff ncd_authuid is not the same
523 * as last time, so that the right ticket file
525 * Get the Kerberos credential structure so that
526 * we have the session key and get a ticket for
528 * For more info see the IETF Draft "Authentication
531 if (ncd.ncd_authuid != last_ruid) {
533 sprintf(buf, "%s%d", TKT_ROOT, ncd.ncd_authuid);
534 krb_set_tkt_string(buf);
535 last_ruid = ncd.ncd_authuid;
537 setreuid(ncd.ncd_authuid, 0);
538 kret = krb_get_cred(NFS_KERBSRV, inst, realm, &kcr);
539 if (kret == RET_NOTKT) {
540 kret = get_ad_tkt(NFS_KERBSRV, inst, realm,
542 if (kret == KSUCCESS)
543 kret = krb_get_cred(NFS_KERBSRV, inst, realm,
546 if (kret == KSUCCESS)
547 kret = krb_mk_req(&ktick.kt, NFS_KERBSRV, inst,
551 * Fill in the AKN_FULLNAME authenticator and verifier.
552 * Along with the Kerberos ticket, we need to build
553 * the timestamp verifier and encrypt it in CBC mode.
555 if (kret == KSUCCESS &&
556 ktick.kt.length <= (RPCAUTH_MAXSIZ-3*NFSX_UNSIGNED)
557 && gettimeofday(&ktv, NULL) == 0) {
558 ncd.ncd_authtype = RPCAUTH_KERB4;
559 ncd.ncd_authstr = (u_char *)&ktick;
560 ncd.ncd_authlen = nfsm_rndup(ktick.kt.length) +
562 ncd.ncd_verfstr = (u_char *)&kverf;
563 ncd.ncd_verflen = sizeof (kverf);
564 memmove(ncd.ncd_key, kcr.session,
565 sizeof (kcr.session));
566 kin.t1 = htonl(ktv.tv_sec);
567 kin.t2 = htonl(ktv.tv_usec);
568 kin.w1 = htonl(NFS_KERBTTL);
569 kin.w2 = htonl(NFS_KERBTTL - 1);
570 bzero((caddr_t)kivec, sizeof (kivec));
573 * Encrypt kin in CBC mode using the session
579 * Finally, fill the timestamp verifier into the
580 * authenticator and verifier.
582 ktick.kind = htonl(RPCAKN_FULLNAME);
583 kverf.kind = htonl(RPCAKN_FULLNAME);
584 NFS_KERBW1(ktick.kt) = kout.w1;
585 ktick.kt.length = htonl(ktick.kt.length);
586 kverf.verf.t1 = kout.t1;
587 kverf.verf.t2 = kout.t2;
588 kverf.verf.w2 = kout.w2;
589 nfssvc_flag = NFSSVC_MNTD | NFSSVC_GOTAUTH;
599 getnfsargs(char *spec, struct nfs_args *nfsargsp)
601 struct addrinfo hints, *ai_nfs, *ai;
603 char host[NI_MAXHOST], serv[NI_MAXSERV];
606 int ecode, speclen, remoteerr;
607 char *hostp, *delimp, *errstr;
612 static char nam[MNAMELEN + 1];
614 if ((delimp = strrchr(spec, ':')) != NULL) {
617 } else if ((delimp = strrchr(spec, '@')) != NULL) {
618 warnx("path@server syntax is deprecated, use server:path");
621 warnx("no <host>:<dirpath> nfs-name");
627 * If there has been a trailing slash at mounttime it seems
628 * that some mountd implementations fail to remove the mount
629 * entries from their mountlist while unmounting.
631 for (speclen = strlen(spec);
632 speclen > 1 && spec[speclen - 1] == '/';
634 spec[speclen - 1] = '\0';
635 if (strlen(hostp) + strlen(spec) + 1 > MNAMELEN) {
636 warnx("%s:%s: %s", hostp, spec, strerror(ENAMETOOLONG));
639 /* Make both '@' and ':' notations equal */
640 if (*hostp != '\0') {
642 memmove(nam, hostp, len);
644 memmove(nam + len + 1, spec, speclen);
645 nam[len + speclen + 1] = '\0';
649 * Handle an internet host address and reverse resolve it if
652 memset(&hints, 0, sizeof hints);
653 hints.ai_flags = AI_NUMERICHOST;
654 hints.ai_socktype = nfsargsp->sotype;
655 if (getaddrinfo(hostp, portspec, &hints, &ai_nfs) == 0) {
657 if ((nfsargsp->flags & NFSMNT_KERB)) {
659 if (getnameinfo(ai_nfs->ai_addr, ai_nfs->ai_addrlen,
660 host, sizeof host, serv, sizeof serv, 0) != 0) {
661 warnx("can't reverse resolve net address");
669 if ((ecode = getaddrinfo(hostp, portspec, &hints, &ai_nfs))
671 if (portspec == NULL)
672 errx(1, "%s: %s", hostp, gai_strerror(ecode));
674 errx(1, "%s:%s: %s", hostp, portspec,
675 gai_strerror(ecode));
680 if (nfsargsp->flags & NFSMNT_KERB) {
681 strncpy(inst, hp->h_name, INST_SZ);
682 inst[INST_SZ - 1] = '\0';
683 if (cp = strchr(inst, '.'))
688 ret = TRYRET_LOCALERR;
691 * Try each entry returned by getaddrinfo(). Note the
692 * occurence of remote errors by setting `remoteerr'.
695 for (ai = ai_nfs; ai != NULL; ai = ai->ai_next) {
696 ret = nfs_tryproto(nfsargsp, ai, hostp, spec, &errstr);
697 if (ret == TRYRET_SUCCESS)
699 if (ret != TRYRET_LOCALERR)
701 if ((opflags & ISBGRND) == 0)
702 fprintf(stderr, "%s\n", errstr);
704 if (ret == TRYRET_SUCCESS)
707 /* Exit if all errors were local. */
712 * If retrycnt == 0, we are to keep retrying forever.
713 * Otherwise decrement it, and exit if it hits zero.
715 if (retrycnt != 0 && --retrycnt == 0)
718 if ((opflags & (BGRND | ISBGRND)) == BGRND) {
719 warnx("Cannot immediately mount %s:%s, backgrounding",
722 if (daemon(0, 0) != 0)
727 freeaddrinfo(ai_nfs);
728 nfsargsp->hostname = nam;
729 /* Add mounted filesystem to PATH_MOUNTTAB */
730 if (!add_mtab(hostp, spec))
731 warnx("can't update %s for %s:%s", PATH_MOUNTTAB, hostp, spec);
736 * Try to set up the NFS arguments according to the address
737 * family, protocol (and possibly port) specified in `ai'.
739 * Returns TRYRET_SUCCESS if successful, or:
740 * TRYRET_TIMEOUT The server did not respond.
741 * TRYRET_REMOTEERR The server reported an error.
742 * TRYRET_LOCALERR Local failure.
744 * In all error cases, *errstr will be set to a statically-allocated string
745 * describing the error.
748 nfs_tryproto(struct nfs_args *nfsargsp, struct addrinfo *ai, char *hostp,
749 char *spec, char **errstr)
751 static char errbuf[256];
752 struct sockaddr_storage nfs_ss;
753 struct netbuf nfs_nb;
754 struct nfhret nfhret;
756 struct rpc_err rpcerr;
758 struct netconfig *nconf, *nconf_mnt;
759 const char *netid, *netid_mnt;
760 int doconnect, nfsvers, mntvers;
761 enum clnt_stat status;
762 enum mountmode trymntmode;
764 trymntmode = mountmode;
768 if ((netid = netidbytype(ai->ai_family, nfsargsp->sotype)) == NULL) {
769 snprintf(errbuf, sizeof errbuf,
770 "af %d sotype %d not supported", ai->ai_family,
772 return (TRYRET_LOCALERR);
774 if ((nconf = getnetconf_cached(netid)) == NULL) {
775 snprintf(errbuf, sizeof errbuf, "%s: %s", netid, nc_sperror());
776 return (TRYRET_LOCALERR);
783 if (trymntmode == V2) {
791 if (portspec != NULL) {
792 /* `ai' contains the complete nfsd sockaddr. */
793 nfs_nb.buf = ai->ai_addr;
794 nfs_nb.len = nfs_nb.maxlen = ai->ai_addrlen;
796 /* Ask the remote rpcbind. */
797 nfs_nb.buf = &nfs_ss;
798 nfs_nb.len = nfs_nb.maxlen = sizeof nfs_ss;
800 if (!rpcb_getaddr(RPCPROG_NFS, nfsvers, nconf, &nfs_nb,
802 if (rpc_createerr.cf_stat == RPC_PROGVERSMISMATCH &&
807 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s",
809 clnt_spcreateerror("RPCPROG_NFS"));
810 return (returncode(rpc_createerr.cf_stat,
811 &rpc_createerr.cf_error));
815 /* Check that the server (nfsd) responds on the port we have chosen. */
816 clp = clnt_tli_create(RPC_ANYFD, nconf, &nfs_nb, RPCPROG_NFS, nfsvers,
819 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s", netid,
820 hostp, spec, clnt_spcreateerror("nfsd: RPCPROG_NFS"));
821 return (returncode(rpc_createerr.cf_stat,
822 &rpc_createerr.cf_error));
824 if (nfsargsp->sotype == SOCK_DGRAM &&
825 !(nfsargsp->flags & NFSMNT_NOCONN)) {
827 * Use connect(), to match what the kernel does. This
828 * catches cases where the server responds from the
829 * wrong source address.
832 if (!clnt_control(clp, CLSET_CONNECT, (char *)&doconnect)) {
834 snprintf(errbuf, sizeof errbuf,
835 "[%s] %s:%s: CLSET_CONNECT failed", netid, hostp,
837 return (TRYRET_LOCALERR);
843 status = clnt_call(clp, NFSPROC_NULL, (xdrproc_t)xdr_void, NULL,
844 (xdrproc_t)xdr_void, NULL, try);
845 if (status != RPC_SUCCESS) {
846 if (status == RPC_PROGVERSMISMATCH && trymntmode == ANY) {
851 clnt_geterr(clp, &rpcerr);
852 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s", netid,
853 hostp, spec, clnt_sperror(clp, "NFSPROC_NULL"));
855 return (returncode(status, &rpcerr));
859 /* Send the RPCMNT_MOUNT RPC to get the root filehandle. */
862 clp = clnt_tp_create(hostp, RPCPROG_MNT, mntvers, nconf_mnt);
864 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s", netid_mnt,
865 hostp, spec, clnt_spcreateerror("RPCMNT: clnt_create"));
866 return (returncode(rpc_createerr.cf_stat,
867 &rpc_createerr.cf_error));
869 clp->cl_auth = authsys_create_default();
870 if (nfsargsp->flags & NFSMNT_KERB)
871 nfhret.auth = RPCAUTH_KERB4;
873 nfhret.auth = RPCAUTH_UNIX;
874 nfhret.vers = mntvers;
875 status = clnt_call(clp, RPCMNT_MOUNT, (xdrproc_t)xdr_dir, spec,
876 (xdrproc_t)xdr_fh, &nfhret, try);
877 auth_destroy(clp->cl_auth);
878 if (status != RPC_SUCCESS) {
879 if (status == RPC_PROGVERSMISMATCH && trymntmode == ANY) {
884 clnt_geterr(clp, &rpcerr);
885 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s", netid_mnt,
886 hostp, spec, clnt_sperror(clp, "RPCPROG_MNT"));
888 return (returncode(status, &rpcerr));
892 if (nfhret.stat != 0) {
893 snprintf(errbuf, sizeof errbuf, "[%s] %s:%s: %s", netid_mnt,
894 hostp, spec, strerror(nfhret.stat));
895 return (TRYRET_REMOTEERR);
899 * Store the filehandle and server address in nfsargsp, making
900 * sure to copy any locally allocated structures.
902 nfsargsp->addrlen = nfs_nb.len;
903 nfsargsp->addr = malloc(nfsargsp->addrlen);
904 nfsargsp->fhsize = nfhret.fhsize;
905 nfsargsp->fh = malloc(nfsargsp->fhsize);
906 if (nfsargsp->addr == NULL || nfsargsp->fh == NULL)
908 bcopy(nfs_nb.buf, nfsargsp->addr, nfsargsp->addrlen);
909 bcopy(nfhret.nfh, nfsargsp->fh, nfsargsp->fhsize);
912 nfsargsp->flags |= NFSMNT_NFSV3;
914 nfsargsp->flags &= ~NFSMNT_NFSV3;
916 return (TRYRET_SUCCESS);
921 * Catagorise a RPC return status and error into an `enum tryret'
925 returncode(enum clnt_stat status, struct rpc_err *rpcerr)
929 return (TRYRET_TIMEOUT);
930 case RPC_PMAPFAILURE:
931 case RPC_PROGNOTREGISTERED:
932 case RPC_PROGVERSMISMATCH:
933 /* XXX, these can be local or remote. */
936 return (TRYRET_REMOTEERR);
937 case RPC_SYSTEMERROR:
938 switch (rpcerr->re_errno) {
940 return (TRYRET_TIMEOUT);
944 return (TRYRET_REMOTEERR);
950 return (TRYRET_LOCALERR);
954 * Look up a netid based on an address family and socket type.
955 * `af' is the address family, and `sotype' is SOCK_DGRAM or SOCK_STREAM.
957 * XXX there should be a library function for this.
960 netidbytype(int af, int sotype)
964 for (p = nc_protos; p->netid != NULL; p++) {
965 if (af != p->af || sotype != p->sotype)
973 * Look up a netconfig entry based on a netid, and cache the result so
974 * that we don't need to remember to call freenetconfigent().
976 * Otherwise it behaves just like getnetconfigent(), so nc_*error()
979 static struct netconfig *
980 getnetconf_cached(const char *netid)
982 static struct nc_entry {
983 struct netconfig *nconf;
984 struct nc_entry *next;
987 struct netconfig *nconf;
989 for (p = head; p != NULL; p = p->next)
990 if (strcmp(netid, p->nconf->nc_netid) == 0)
993 if ((nconf = getnetconfigent(netid)) == NULL)
995 if ((p = malloc(sizeof(*p))) == NULL)
1005 * xdr routines for mount rpc's
1008 xdr_dir(XDR *xdrsp, char *dirp)
1010 return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
1014 xdr_fh(XDR *xdrsp, struct nfhret *np)
1017 long auth, authcnt, authfnd = 0;
1019 if (!xdr_u_long(xdrsp, &np->stat))
1025 np->fhsize = NFSX_V2FH;
1026 return (xdr_opaque(xdrsp, (caddr_t)np->nfh, NFSX_V2FH));
1028 if (!xdr_long(xdrsp, &np->fhsize))
1030 if (np->fhsize <= 0 || np->fhsize > NFSX_V3FHMAX)
1032 if (!xdr_opaque(xdrsp, (caddr_t)np->nfh, np->fhsize))
1034 if (!xdr_long(xdrsp, &authcnt))
1036 for (i = 0; i < authcnt; i++) {
1037 if (!xdr_long(xdrsp, &auth))
1039 if (auth == np->auth)
1043 * Some servers, such as DEC's OSF/1 return a nil authenticator
1044 * list to indicate RPCAUTH_UNIX.
1046 if (!authfnd && (authcnt > 0 || np->auth != RPCAUTH_UNIX))
1056 fprintf(stderr, "%s\n%s\n%s\n%s\n",
1057 "usage: mount_nfs [-23KNPTUbcdils] [-D deadthresh] [-I readdirsize]",
1058 " [-R retrycnt] [-a maxreadahead]",
1059 " [-g maxgroups] [-m realm] [-o options] [-r readsize]",
1060 " [-t timeout] [-w writesize] [-x retrans] rhost:path node");