Annotation of src/sbin/mount_nfs/mount_nfs.c, Revision 1.15
1.15 ! fvdl 1: /* $NetBSD: mount_nfs.c,v 1.14 1996/10/27 21:18:04 christos Exp $ */
1.8 cgd 2:
1.1 mycroft 3: /*
4: * Copyright (c) 1992, 1993, 1994
5: * The Regents of the University of California. All rights reserved.
6: *
7: * This code is derived from software contributed to Berkeley by
8: * Rick Macklem at The University of Guelph.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by the University of
21: * California, Berkeley and its contributors.
22: * 4. Neither the name of the University nor the names of its contributors
23: * may be used to endorse or promote products derived from this software
24: * without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36: * SUCH DAMAGE.
37: */
38:
39: #ifndef lint
40: static char copyright[] =
41: "@(#) Copyright (c) 1992, 1993, 1994\n\
42: The Regents of the University of California. All rights reserved.\n";
43: #endif /* not lint */
44:
45: #ifndef lint
1.8 cgd 46: #if 0
1.11 fvdl 47: static char sccsid[] = "@(#)mount_nfs.c 8.11 (Berkeley) 5/4/95";
1.8 cgd 48: #else
1.15 ! fvdl 49: static char rcsid[] = "$NetBSD: mount_nfs.c,v 1.14 1996/10/27 21:18:04 christos Exp $";
1.8 cgd 50: #endif
1.1 mycroft 51: #endif /* not lint */
52:
53: #include <sys/param.h>
54: #include <sys/mount.h>
55: #include <sys/socket.h>
56: #include <sys/socketvar.h>
57: #include <sys/stat.h>
1.9 jtc 58: #include <syslog.h>
1.1 mycroft 59:
60: #include <rpc/rpc.h>
61: #include <rpc/pmap_clnt.h>
62: #include <rpc/pmap_prot.h>
63:
64: #ifdef ISO
65: #include <netiso/iso.h>
66: #endif
67:
1.11 fvdl 68: #ifdef NFSKERB
1.1 mycroft 69: #include <kerberosIV/des.h>
70: #include <kerberosIV/krb.h>
71: #endif
72:
73: #include <nfs/rpcv2.h>
1.11 fvdl 74: #include <nfs/nfsproto.h>
1.9 jtc 75: #define _KERNEL
1.1 mycroft 76: #include <nfs/nfs.h>
1.9 jtc 77: #undef _KERNEL
1.1 mycroft 78: #include <nfs/nqnfs.h>
79:
80: #include <arpa/inet.h>
81:
82: #include <ctype.h>
83: #include <err.h>
84: #include <errno.h>
85: #include <fcntl.h>
86: #include <netdb.h>
87: #include <signal.h>
88: #include <stdio.h>
89: #include <stdlib.h>
90: #include <strings.h>
91: #include <unistd.h>
92:
93: #include "mntopts.h"
94:
1.11 fvdl 95: #define ALTF_BG 0x1
1.14 christos 96: #define ALTF_CONN 0x2
1.11 fvdl 97: #define ALTF_DUMBTIMR 0x4
98: #define ALTF_INTR 0x8
99: #define ALTF_KERB 0x10
100: #define ALTF_NFSV3 0x20
101: #define ALTF_RDIRPLUS 0x40
102: #define ALTF_MNTUDP 0x80
1.15 ! fvdl 103: #define ALTF_NORESPORT 0x100
1.11 fvdl 104: #define ALTF_SEQPACKET 0x200
105: #define ALTF_NQNFS 0x400
106: #define ALTF_SOFT 0x800
107: #define ALTF_TCP 0x1000
1.13 fvdl 108: #define ALTF_NFSV2 0x2000
1.11 fvdl 109:
1.12 jtc 110: const struct mntopt mopts[] = {
1.1 mycroft 111: MOPT_STDOPTS,
112: MOPT_FORCE,
113: MOPT_UPDATE,
1.11 fvdl 114: { "bg", 0, ALTF_BG, 1 },
1.14 christos 115: { "conn", 0, ALTF_CONN, 1 },
1.11 fvdl 116: { "dumbtimer", 0, ALTF_DUMBTIMR, 1 },
117: { "intr", 0, ALTF_INTR, 1 },
118: #ifdef NFSKERB
119: { "kerb", 0, ALTF_KERB, 1 },
120: #endif
121: { "nfsv3", 0, ALTF_NFSV3, 1 },
122: { "rdirplus", 0, ALTF_RDIRPLUS, 1 },
123: { "mntudp", 0, ALTF_MNTUDP, 1 },
1.15 ! fvdl 124: { "noresport", 0, ALTF_NORESPORT, 1 },
1.11 fvdl 125: #ifdef ISO
126: { "seqpacket", 0, ALTF_SEQPACKET, 1 },
127: #endif
128: { "nqnfs", 0, ALTF_NQNFS, 1 },
129: { "soft", 0, ALTF_SOFT, 1 },
130: { "tcp", 0, ALTF_TCP, 1 },
1.13 fvdl 131: { "nfsv2", 0, ALTF_NFSV2, 1 },
1.1 mycroft 132: { NULL }
133: };
134:
135: struct nfs_args nfsdefargs = {
1.11 fvdl 136: NFS_ARGSVERSION,
1.1 mycroft 137: (struct sockaddr *)0,
138: sizeof (struct sockaddr_in),
139: SOCK_DGRAM,
140: 0,
1.11 fvdl 141: (u_char *)0,
1.1 mycroft 142: 0,
1.15 ! fvdl 143: NFSMNT_NFSV3|NFSMNT_NOCONN|NFSMNT_RESVPORT,
1.1 mycroft 144: NFS_WSIZE,
145: NFS_RSIZE,
1.11 fvdl 146: NFS_READDIRSIZE,
147: 10,
1.1 mycroft 148: NFS_RETRANS,
149: NFS_MAXGRPS,
150: NFS_DEFRAHEAD,
151: NQ_DEFLEASE,
152: NQ_DEADTHRESH,
153: (char *)0,
154: };
155:
156: struct nfhret {
1.11 fvdl 157: u_long stat;
158: long vers;
159: long auth;
160: long fhsize;
161: u_char nfh[NFSX_V3FHMAX];
1.1 mycroft 162: };
163: #define DEF_RETRY 10000
164: #define BGRND 1
165: #define ISBGRND 2
1.11 fvdl 166: int retrycnt;
1.1 mycroft 167: int opflags = 0;
1.11 fvdl 168: int nfsproto = IPPROTO_UDP;
169: int mnttcp_ok = 1;
170: int force2 = 0;
171: int force3 = 0;
1.1 mycroft 172:
1.11 fvdl 173: #ifdef NFSKERB
1.1 mycroft 174: char inst[INST_SZ];
175: char realm[REALM_SZ];
1.11 fvdl 176: struct {
177: u_long kind;
178: KTEXT_ST kt;
179: } ktick;
180: struct nfsrpc_nickverf kverf;
181: struct nfsrpc_fullblock kin, kout;
182: NFSKERBKEY_T kivec;
183: CREDENTIALS kcr;
184: struct timeval ktv;
185: NFSKERBKEYSCHED_T kerb_keysched;
1.1 mycroft 186: #endif
187:
188: int getnfsargs __P((char *, struct nfs_args *));
189: #ifdef ISO
190: struct iso_addr *iso_addr __P((const char *));
191: #endif
192: void set_rpc_maxgrouplist __P((int));
193: __dead void usage __P((void));
194: int xdr_dir __P((XDR *, char *));
195: int xdr_fh __P((XDR *, struct nfhret *));
196:
197: int
198: main(argc, argv)
199: int argc;
200: char *argv[];
201: {
202: register int c;
203: register struct nfs_args *nfsargsp;
204: struct nfs_args nfsargs;
205: struct nfsd_cargs ncd;
1.11 fvdl 206: int mntflags, altflags, i, nfssvc_flag, num;
1.1 mycroft 207: char *name, *p, *spec;
208: int error = 0;
1.11 fvdl 209: #ifdef NFSKERB
1.1 mycroft 210: uid_t last_ruid;
211:
212: last_ruid = -1;
1.3 brezak 213: if (krb_get_lrealm(realm, 0) != KSUCCESS)
214: (void)strcpy(realm, KRB_REALM);
1.11 fvdl 215: if (sizeof (struct nfsrpc_nickverf) != RPCX_NICKVERF ||
216: sizeof (struct nfsrpc_fullblock) != RPCX_FULLBLOCK ||
217: ((char *)&ktick.kt) - ((char *)&ktick) != NFSX_UNSIGNED ||
218: ((char *)ktick.kt.dat) - ((char *)&ktick) != 2 * NFSX_UNSIGNED)
219: fprintf(stderr, "Yikes! NFSKERB structs not packed!!\n");
220:
1.1 mycroft 221: #endif
222: retrycnt = DEF_RETRY;
223:
224: mntflags = 0;
1.11 fvdl 225: altflags = 0;
1.1 mycroft 226: nfsargs = nfsdefargs;
227: nfsargsp = &nfsargs;
228: while ((c = getopt(argc, argv,
1.14 christos 229: "23a:bcCdD:g:I:iKL:lm:o:PpqR:r:sTt:w:x:U")) != EOF)
1.1 mycroft 230: switch (c) {
1.11 fvdl 231: case '3':
232: if (force2)
233: errx(1, "-2 and -3 are mutually exclusive");
234: force3 = 1;
235: break;
236: case '2':
237: if (force3)
238: errx(1, "-2 and -3 are mutually exclusive");
239: force2 = 1;
240: nfsargsp->flags &= ~NFSMNT_NFSV3;
241: break;
1.1 mycroft 242: case 'a':
243: num = strtol(optarg, &p, 10);
244: if (*p || num < 0)
245: errx(1, "illegal -a value -- %s", optarg);
246: nfsargsp->readahead = num;
247: nfsargsp->flags |= NFSMNT_READAHEAD;
248: break;
249: case 'b':
250: opflags |= BGRND;
251: break;
252: case 'c':
253: nfsargsp->flags |= NFSMNT_NOCONN;
254: break;
1.14 christos 255: case 'C':
256: nfsargsp->flags &= ~NFSMNT_NOCONN;
257: break;
1.1 mycroft 258: case 'D':
259: num = strtol(optarg, &p, 10);
260: if (*p || num <= 0)
261: errx(1, "illegal -D value -- %s", optarg);
262: nfsargsp->deadthresh = num;
263: nfsargsp->flags |= NFSMNT_DEADTHRESH;
264: break;
265: case 'd':
266: nfsargsp->flags |= NFSMNT_DUMBTIMR;
267: break;
268: #if 0 /* XXXX */
269: case 'g':
270: num = strtol(optarg, &p, 10);
271: if (*p || num <= 0)
272: errx(1, "illegal -g value -- %s", optarg);
273: set_rpc_maxgrouplist(num);
274: nfsargsp->maxgrouplist = num;
275: nfsargsp->flags |= NFSMNT_MAXGRPS;
276: break;
277: #endif
1.11 fvdl 278: case 'I':
279: num = strtol(optarg, &p, 10);
280: if (*p || num <= 0)
281: errx(1, "illegal -I value -- %s", optarg);
282: nfsargsp->readdirsize = num;
283: nfsargsp->flags |= NFSMNT_READDIRSIZE;
284: break;
1.1 mycroft 285: case 'i':
286: nfsargsp->flags |= NFSMNT_INT;
287: break;
1.11 fvdl 288: #ifdef NFSKERB
1.1 mycroft 289: case 'K':
290: nfsargsp->flags |= NFSMNT_KERB;
291: break;
292: #endif
293: case 'L':
294: num = strtol(optarg, &p, 10);
295: if (*p || num < 2)
296: errx(1, "illegal -L value -- %s", optarg);
297: nfsargsp->leaseterm = num;
298: nfsargsp->flags |= NFSMNT_LEASETERM;
299: break;
300: case 'l':
1.11 fvdl 301: nfsargsp->flags |= NFSMNT_RDIRPLUS;
1.1 mycroft 302: break;
1.11 fvdl 303: #ifdef NFSKERB
1.1 mycroft 304: case 'm':
305: (void)strncpy(realm, optarg, REALM_SZ - 1);
306: realm[REALM_SZ - 1] = '\0';
307: break;
308: #endif
309: case 'o':
1.11 fvdl 310: getmntopts(optarg, mopts, &mntflags, &altflags);
311: if(altflags & ALTF_BG)
312: opflags |= BGRND;
1.14 christos 313: if(altflags & ALTF_CONN)
314: nfsargsp->flags &= ~NFSMNT_NOCONN;
1.11 fvdl 315: if(altflags & ALTF_DUMBTIMR)
316: nfsargsp->flags |= NFSMNT_DUMBTIMR;
317: if(altflags & ALTF_INTR)
318: nfsargsp->flags |= NFSMNT_INT;
319: #ifdef NFSKERB
320: if(altflags & ALTF_KERB)
321: nfsargsp->flags |= NFSMNT_KERB;
322: #endif
1.13 fvdl 323: if(altflags & ALTF_NFSV3) {
324: if (force2)
325: errx(1,"conflicting version options");
326: force3 = 1;
327: }
328: if(altflags & ALTF_NFSV2) {
329: if (force3)
330: errx(1,"conflicting version options");
331: force2 = 1;
332: nfsargsp->flags &= ~NFSMNT_NFSV3;
333: }
1.11 fvdl 334: if(altflags & ALTF_RDIRPLUS)
335: nfsargsp->flags |= NFSMNT_RDIRPLUS;
336: if(altflags & ALTF_MNTUDP)
337: mnttcp_ok = 0;
1.15 ! fvdl 338: if(altflags & ALTF_NORESPORT)
! 339: nfsargsp->flags &= ~NFSMNT_RESVPORT;
1.11 fvdl 340: #ifdef ISO
341: if(altflags & ALTF_SEQPACKET)
342: nfsargsp->sotype = SOCK_SEQPACKET;
343: #endif
1.13 fvdl 344: if(altflags & ALTF_NQNFS) {
345: if (force2)
346: errx(1,"nqnfs only available with v3");
347: force3 = 1;
348: nfsargsp->flags |= NFSMNT_NQNFS;
349: }
1.11 fvdl 350: if(altflags & ALTF_SOFT)
351: nfsargsp->flags |= NFSMNT_SOFT;
352: if(altflags & ALTF_TCP) {
353: nfsargsp->sotype = SOCK_STREAM;
354: nfsproto = IPPROTO_TCP;
355: }
356: altflags = 0;
1.1 mycroft 357: break;
358: case 'P':
359: nfsargsp->flags |= NFSMNT_RESVPORT;
360: break;
361: case 'p':
1.15 ! fvdl 362: nfsargsp->flags &= ~NFSMNT_RESVPORT;
1.1 mycroft 363: break;
364: case 'q':
1.13 fvdl 365: if (force2)
366: errx(1,"nqnfs only available with v3");
367: force3 = 1;
368: nfsargsp->flags |= NFSMNT_NQNFS;
1.1 mycroft 369: break;
370: case 'R':
371: num = strtol(optarg, &p, 10);
372: if (*p || num <= 0)
373: errx(1, "illegal -R value -- %s", optarg);
374: retrycnt = num;
375: break;
376: case 'r':
377: num = strtol(optarg, &p, 10);
378: if (*p || num <= 0)
379: errx(1, "illegal -r value -- %s", optarg);
380: nfsargsp->rsize = num;
381: nfsargsp->flags |= NFSMNT_RSIZE;
382: break;
1.15 ! fvdl 383: #ifdef ISO
! 384: case 'S':
! 385: nfsargsp->sotype = SOCK_SEQPACKET;
! 386: break;
! 387: #endif
1.1 mycroft 388: case 's':
389: nfsargsp->flags |= NFSMNT_SOFT;
390: break;
391: case 'T':
392: nfsargsp->sotype = SOCK_STREAM;
1.11 fvdl 393: nfsproto = IPPROTO_TCP;
1.1 mycroft 394: break;
395: case 't':
396: num = strtol(optarg, &p, 10);
397: if (*p || num <= 0)
398: errx(1, "illegal -t value -- %s", optarg);
399: nfsargsp->timeo = num;
400: nfsargsp->flags |= NFSMNT_TIMEO;
401: break;
402: case 'w':
403: num = strtol(optarg, &p, 10);
404: if (*p || num <= 0)
405: errx(1, "illegal -w value -- %s", optarg);
406: nfsargsp->wsize = num;
407: nfsargsp->flags |= NFSMNT_WSIZE;
408: break;
409: case 'x':
410: num = strtol(optarg, &p, 10);
411: if (*p || num <= 0)
412: errx(1, "illegal -x value -- %s", optarg);
413: nfsargsp->retrans = num;
414: nfsargsp->flags |= NFSMNT_RETRANS;
415: break;
1.11 fvdl 416: case 'U':
417: mnttcp_ok = 0;
418: break;
1.1 mycroft 419: default:
420: usage();
421: break;
422: }
423: argc -= optind;
424: argv += optind;
425:
426: if (argc != 2)
1.7 cgd 427: usage();
1.1 mycroft 428:
429: spec = *argv++;
430: name = *argv;
431:
432: if (!getnfsargs(spec, nfsargsp))
433: exit(1);
434: if (mount(MOUNT_NFS, name, mntflags, nfsargsp))
435: err(1, "%s", name);
436: if (nfsargsp->flags & (NFSMNT_NQNFS | NFSMNT_KERB)) {
437: if ((opflags & ISBGRND) == 0) {
438: if (i = fork()) {
439: if (i == -1)
440: err(1, "nqnfs 1");
441: exit(0);
442: }
443: (void) setsid();
444: (void) close(STDIN_FILENO);
445: (void) close(STDOUT_FILENO);
446: (void) close(STDERR_FILENO);
447: (void) chdir("/");
448: }
449: openlog("mount_nfs:", LOG_PID, LOG_DAEMON);
450: nfssvc_flag = NFSSVC_MNTD;
451: ncd.ncd_dirp = name;
452: while (nfssvc(nfssvc_flag, (caddr_t)&ncd) < 0) {
453: if (errno != ENEEDAUTH) {
454: syslog(LOG_ERR, "nfssvc err %m");
455: continue;
456: }
457: nfssvc_flag =
458: NFSSVC_MNTD | NFSSVC_GOTAUTH | NFSSVC_AUTHINFAIL;
1.11 fvdl 459: #ifdef NFSKERB
1.1 mycroft 460: /*
461: * Set up as ncd_authuid for the kerberos call.
462: * Must set ruid to ncd_authuid and reset the
463: * ticket name iff ncd_authuid is not the same
464: * as last time, so that the right ticket file
465: * is found.
1.11 fvdl 466: * Get the Kerberos credential structure so that
467: * we have the seesion key and get a ticket for
468: * this uid.
469: * For more info see the IETF Draft "Authentication
470: * in ONC RPC".
1.1 mycroft 471: */
472: if (ncd.ncd_authuid != last_ruid) {
473: krb_set_tkt_string("");
474: last_ruid = ncd.ncd_authuid;
475: }
476: setreuid(ncd.ncd_authuid, 0);
1.11 fvdl 477: kret = krb_get_cred(NFS_KERBSRV, inst, realm, &kcr);
478: if (kret == RET_NOTKT) {
479: kret = get_ad_tkt(NFS_KERBSRV, inst, realm,
480: DEFAULT_TKT_LIFE);
481: if (kret == KSUCCESS)
482: kret = krb_get_cred(NFS_KERBSRV, inst, realm,
483: &kcr);
484: }
485: if (kret == KSUCCESS)
486: kret = krb_mk_req(&ktick.kt, NFS_KERBSRV, inst,
487: realm, 0);
488:
489: /*
490: * Fill in the AKN_FULLNAME authenticator and verfier.
491: * Along with the Kerberos ticket, we need to build
492: * the timestamp verifier and encrypt it in CBC mode.
493: */
494: if (kret == KSUCCESS &&
495: ktick.kt.length <= (RPCAUTH_MAXSIZ-3*NFSX_UNSIGNED)
496: && gettimeofday(&ktv, (struct timezone *)0) == 0) {
497: ncd.ncd_authtype = RPCAUTH_KERB4;
498: ncd.ncd_authstr = (u_char *)&ktick;
499: ncd.ncd_authlen = nfsm_rndup(ktick.kt.length) +
500: 3 * NFSX_UNSIGNED;
501: ncd.ncd_verfstr = (u_char *)&kverf;
502: ncd.ncd_verflen = sizeof (kverf);
503: memmove(ncd.ncd_key, kcr.session,
504: sizeof (kcr.session));
505: kin.t1 = htonl(ktv.tv_sec);
506: kin.t2 = htonl(ktv.tv_usec);
507: kin.w1 = htonl(NFS_KERBTTL);
508: kin.w2 = htonl(NFS_KERBTTL - 1);
509: bzero((caddr_t)kivec, sizeof (kivec));
510:
511: /*
512: * Encrypt kin in CBC mode using the session
513: * key in kcr.
514: */
515: XXX
516:
517: /*
518: * Finally, fill the timestamp verifier into the
519: * authenticator and verifier.
520: */
521: ktick.kind = htonl(RPCAKN_FULLNAME);
522: kverf.kind = htonl(RPCAKN_FULLNAME);
523: NFS_KERBW1(ktick.kt) = kout.w1;
524: ktick.kt.length = htonl(ktick.kt.length);
525: kverf.verf.t1 = kout.t1;
526: kverf.verf.t2 = kout.t2;
527: kverf.verf.w2 = kout.w2;
528: nfssvc_flag = NFSSVC_MNTD | NFSSVC_GOTAUTH;
1.1 mycroft 529: }
530: setreuid(0, 0);
1.11 fvdl 531: #endif /* NFSKERB */
1.1 mycroft 532: }
533: }
534: exit(0);
535: }
536:
537: int
538: getnfsargs(spec, nfsargsp)
539: char *spec;
540: struct nfs_args *nfsargsp;
541: {
542: register CLIENT *clp;
543: struct hostent *hp;
544: static struct sockaddr_in saddr;
545: #ifdef ISO
546: static struct sockaddr_iso isoaddr;
547: struct iso_addr *isop;
548: int isoflag = 0;
549: #endif
550: struct timeval pertry, try;
551: enum clnt_stat clnt_stat;
1.11 fvdl 552: int so = RPC_ANYSOCK, i, nfsvers, mntvers, orgcnt;
1.1 mycroft 553: char *hostp, *delimp;
1.11 fvdl 554: #ifdef NFSKERB
1.1 mycroft 555: char *cp;
556: #endif
557: u_short tport;
558: static struct nfhret nfhret;
559: static char nam[MNAMELEN + 1];
560:
561: strncpy(nam, spec, MNAMELEN);
562: nam[MNAMELEN] = '\0';
563: if ((delimp = strchr(spec, '@')) != NULL) {
564: hostp = delimp + 1;
565: } else if ((delimp = strchr(spec, ':')) != NULL) {
566: hostp = spec;
567: spec = delimp + 1;
568: } else {
569: warnx("no <host>:<dirpath> or <dirpath>@<host> spec");
570: return (0);
571: }
572: *delimp = '\0';
573: /*
574: * DUMB!! Until the mount protocol works on iso transport, we must
575: * supply both an iso and an inet address for the host.
576: */
577: #ifdef ISO
578: if (!strncmp(hostp, "iso=", 4)) {
579: u_short isoport;
580:
581: hostp += 4;
582: isoflag++;
583: if ((delimp = strchr(hostp, '+')) == NULL) {
584: warnx("no iso+inet address");
585: return (0);
586: }
587: *delimp = '\0';
588: if ((isop = iso_addr(hostp)) == NULL) {
589: warnx("bad ISO address");
590: return (0);
591: }
1.6 mycroft 592: memset(&isoaddr, 0, sizeof (isoaddr));
593: memcpy(&isoaddr.siso_addr, isop, sizeof (struct iso_addr));
1.1 mycroft 594: isoaddr.siso_len = sizeof (isoaddr);
595: isoaddr.siso_family = AF_ISO;
596: isoaddr.siso_tlen = 2;
597: isoport = htons(NFS_PORT);
1.6 mycroft 598: memcpy(TSEL(&isoaddr), &isoport, isoaddr.siso_tlen);
1.1 mycroft 599: hostp = delimp + 1;
600: }
601: #endif /* ISO */
602:
603: /*
604: * Handle an internet host address and reverse resolve it if
605: * doing Kerberos.
606: */
1.10 mycroft 607: if (inet_aton(hostp, &saddr.sin_addr) != 0) {
608: if ((nfsargsp->flags & NFSMNT_KERB)) {
609: if ((hp = gethostbyaddr((char *)&saddr.sin_addr.s_addr,
610: sizeof (u_long), AF_INET)) == (struct hostent *)0) {
611: warnx("can't reverse resolve net address");
612: return (0);
613: }
1.1 mycroft 614: }
1.10 mycroft 615: } else {
616: hp = gethostbyname(hostp);
617: if (hp == NULL) {
618: warnx("can't get net id for host");
1.1 mycroft 619: return (0);
620: }
1.6 mycroft 621: memcpy(&saddr.sin_addr, hp->h_addr, hp->h_length);
1.10 mycroft 622: }
1.11 fvdl 623: #ifdef NFSKERB
1.1 mycroft 624: if (nfsargsp->flags & NFSMNT_KERB) {
625: strncpy(inst, hp->h_name, INST_SZ);
626: inst[INST_SZ - 1] = '\0';
627: if (cp = strchr(inst, '.'))
628: *cp = '\0';
629: }
1.11 fvdl 630: #endif /* NFSKERB */
1.1 mycroft 631:
1.11 fvdl 632: if (force2) {
633: nfsvers = NFS_VER2;
634: mntvers = RPCMNT_VER1;
635: } else {
636: nfsvers = NFS_VER3;
637: mntvers = RPCMNT_VER3;
638: }
639: orgcnt = retrycnt;
640: tryagain:
1.1 mycroft 641: nfhret.stat = EACCES; /* Mark not yet successful */
642: while (retrycnt > 0) {
643: saddr.sin_family = AF_INET;
644: saddr.sin_port = htons(PMAPPORT);
645: if ((tport = pmap_getport(&saddr, RPCPROG_NFS,
1.11 fvdl 646: nfsvers, nfsargsp->sotype == SOCK_STREAM ? IPPROTO_TCP :
1.5 mycroft 647: IPPROTO_UDP)) == 0) {
1.1 mycroft 648: if ((opflags & ISBGRND) == 0)
649: clnt_pcreateerror("NFS Portmap");
650: } else {
651: saddr.sin_port = 0;
652: pertry.tv_sec = 10;
653: pertry.tv_usec = 0;
1.11 fvdl 654: if (mnttcp_ok && nfsargsp->sotype == SOCK_STREAM)
655: clp = clnttcp_create(&saddr, RPCPROG_MNT, mntvers,
656: &so, 0, 0);
657: else
658: clp = clntudp_create(&saddr, RPCPROG_MNT, mntvers,
659: pertry, &so);
660: if (clp == NULL) {
1.1 mycroft 661: if ((opflags & ISBGRND) == 0)
662: clnt_pcreateerror("Cannot MNT PRC");
663: } else {
664: clp->cl_auth = authunix_create_default();
665: try.tv_sec = 10;
666: try.tv_usec = 0;
1.11 fvdl 667: if (nfsargsp->flags & NFSMNT_KERB)
668: nfhret.auth = RPCAUTH_KERB4;
669: else
670: nfhret.auth = RPCAUTH_UNIX;
671: nfhret.vers = mntvers;
1.1 mycroft 672: clnt_stat = clnt_call(clp, RPCMNT_MOUNT,
673: xdr_dir, spec, xdr_fh, &nfhret, try);
1.15 ! fvdl 674: switch (clnt_stat) {
! 675: case RPC_PROGVERSMISMATCH:
! 676: if (nfsvers == NFS_VER3 && !force3) {
! 677: retrycnt = orgcnt;
! 678: nfsvers = NFS_VER2;
! 679: mntvers = RPCMNT_VER1;
! 680: nfsargsp->flags &=
! 681: ~NFSMNT_NFSV3;
! 682: goto tryagain;
! 683: } else {
! 684: errx(1, "%s", clnt_sperror(clp,
! 685: "MNT RPC"));
1.11 fvdl 686: }
1.15 ! fvdl 687: case RPC_SUCCESS:
! 688: auth_destroy(clp->cl_auth);
! 689: clnt_destroy(clp);
! 690: retrycnt = 0;
! 691: break;
! 692: default:
! 693: /* XXX should give up on some errors */
1.1 mycroft 694: if ((opflags & ISBGRND) == 0)
695: warnx("%s", clnt_sperror(clp,
696: "bad MNT RPC"));
1.15 ! fvdl 697: break;
1.1 mycroft 698: }
699: }
700: }
701: if (--retrycnt > 0) {
702: if (opflags & BGRND) {
703: opflags &= ~BGRND;
704: if (i = fork()) {
705: if (i == -1)
706: err(1, "nqnfs 2");
707: exit(0);
708: }
709: (void) setsid();
710: (void) close(STDIN_FILENO);
711: (void) close(STDOUT_FILENO);
712: (void) close(STDERR_FILENO);
713: (void) chdir("/");
714: opflags |= ISBGRND;
715: }
716: sleep(60);
717: }
718: }
719: if (nfhret.stat) {
720: if (opflags & ISBGRND)
721: exit(1);
1.4 mycroft 722: errno = nfhret.stat;
1.11 fvdl 723: warnx("can't access %s: %s", spec, strerror(nfhret.stat));
1.1 mycroft 724: return (0);
725: }
726: saddr.sin_port = htons(tport);
727: #ifdef ISO
728: if (isoflag) {
729: nfsargsp->addr = (struct sockaddr *) &isoaddr;
730: nfsargsp->addrlen = sizeof (isoaddr);
731: } else
732: #endif /* ISO */
733: {
734: nfsargsp->addr = (struct sockaddr *) &saddr;
735: nfsargsp->addrlen = sizeof (saddr);
736: }
1.11 fvdl 737: nfsargsp->fh = nfhret.nfh;
738: nfsargsp->fhsize = nfhret.fhsize;
1.1 mycroft 739: nfsargsp->hostname = nam;
740: return (1);
741: }
742:
743: /*
744: * xdr routines for mount rpc's
745: */
746: int
747: xdr_dir(xdrsp, dirp)
748: XDR *xdrsp;
749: char *dirp;
750: {
751: return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN));
752: }
753:
754: int
755: xdr_fh(xdrsp, np)
756: XDR *xdrsp;
1.11 fvdl 757: register struct nfhret *np;
1.1 mycroft 758: {
1.11 fvdl 759: register int i;
760: long auth, authcnt, authfnd = 0;
761:
762: if (!xdr_u_long(xdrsp, &np->stat))
1.1 mycroft 763: return (0);
764: if (np->stat)
765: return (1);
1.11 fvdl 766: switch (np->vers) {
767: case 1:
768: np->fhsize = NFSX_V2FH;
769: return (xdr_opaque(xdrsp, (caddr_t)np->nfh, NFSX_V2FH));
770: case 3:
771: if (!xdr_long(xdrsp, &np->fhsize))
772: return (0);
773: if (np->fhsize <= 0 || np->fhsize > NFSX_V3FHMAX)
774: return (0);
775: if (!xdr_opaque(xdrsp, (caddr_t)np->nfh, np->fhsize))
776: return (0);
777: if (!xdr_long(xdrsp, &authcnt))
778: return (0);
779: for (i = 0; i < authcnt; i++) {
780: if (!xdr_long(xdrsp, &auth))
781: return (0);
782: if (auth == np->auth)
783: authfnd++;
784: }
785: /*
786: * Some servers, such as DEC's OSF/1 return a nil authenticator
787: * list to indicate RPCAUTH_UNIX.
788: */
789: if (!authfnd && (authcnt > 0 || np->auth != RPCAUTH_UNIX))
790: np->stat = EAUTH;
791: return (1);
792: };
793: return (0);
1.1 mycroft 794: }
795:
796: __dead void
797: usage()
798: {
799: (void)fprintf(stderr, "usage: mount_nfs %s\n%s\n%s\n%s\n",
1.14 christos 800: "[-23bcCdiKklMPqsT] [-a maxreadahead] [-D deadthresh]",
1.1 mycroft 801: "\t[-g maxgroups] [-L leaseterm] [-m realm] [-o options] [-R retrycnt]",
802: "\t[-r readsize] [-t timeout] [-w writesize] [-x retrans]",
803: "\trhost:path node");
804: exit(1);
805: }
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