mountd.c revision 74462
11558Srgrimes/* 21558Srgrimes * Copyright (c) 1989, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * This code is derived from software contributed to Berkeley by 61558Srgrimes * Herb Hasler and Rick Macklem at The University of Guelph. 71558Srgrimes * 81558Srgrimes * Redistribution and use in source and binary forms, with or without 91558Srgrimes * modification, are permitted provided that the following conditions 101558Srgrimes * are met: 111558Srgrimes * 1. Redistributions of source code must retain the above copyright 121558Srgrimes * notice, this list of conditions and the following disclaimer. 131558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141558Srgrimes * notice, this list of conditions and the following disclaimer in the 151558Srgrimes * documentation and/or other materials provided with the distribution. 161558Srgrimes * 3. All advertising materials mentioning features or use of this software 171558Srgrimes * must display the following acknowledgement: 181558Srgrimes * This product includes software developed by the University of 191558Srgrimes * California, Berkeley and its contributors. 201558Srgrimes * 4. Neither the name of the University nor the names of its contributors 211558Srgrimes * may be used to endorse or promote products derived from this software 221558Srgrimes * without specific prior written permission. 231558Srgrimes * 241558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 251558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 261558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 271558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 281558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 291558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 301558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 311558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 321558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 331558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 341558Srgrimes * SUCH DAMAGE. 351558Srgrimes */ 361558Srgrimes 371558Srgrimes#ifndef lint 3837663Scharnierstatic const char copyright[] = 391558Srgrimes"@(#) Copyright (c) 1989, 1993\n\ 401558Srgrimes The Regents of the University of California. All rights reserved.\n"; 412999Swollman#endif /*not lint*/ 421558Srgrimes 431558Srgrimes#ifndef lint 4437663Scharnier#if 0 4537663Scharnierstatic char sccsid[] = "@(#)mountd.c 8.15 (Berkeley) 5/1/95"; 4637663Scharnier#endif 472999Swollmanstatic const char rcsid[] = 4850476Speter "$FreeBSD: head/usr.sbin/mountd/mountd.c 74462 2001-03-19 12:50:13Z alfred $"; 492999Swollman#endif /*not lint*/ 501558Srgrimes 511558Srgrimes#include <sys/param.h> 521558Srgrimes#include <sys/mount.h> 5374462Salfred#include <sys/fcntl.h> 541558Srgrimes#include <sys/stat.h> 551558Srgrimes#include <sys/syslog.h> 5624330Sguido#include <sys/sysctl.h> 571558Srgrimes 581558Srgrimes#include <rpc/rpc.h> 591558Srgrimes#include <rpc/pmap_clnt.h> 6074462Salfred#include <rpc/pmap_prot.h> 6174462Salfred#include <rpcsvc/mount.h> 621558Srgrimes#include <nfs/rpcv2.h> 639336Sdfr#include <nfs/nfsproto.h> 6424330Sguido#include <nfs/nfs.h> 6523681Speter#include <ufs/ufs/ufsmount.h> 6623681Speter#include <msdosfs/msdosfsmount.h> 6754093Ssemenu#include <ntfs/ntfsmount.h> 6823681Speter#include <isofs/cd9660/cd9660_mount.h> /* XXX need isofs in include */ 691558Srgrimes 701558Srgrimes#include <arpa/inet.h> 711558Srgrimes 721558Srgrimes#include <ctype.h> 7337663Scharnier#include <err.h> 741558Srgrimes#include <errno.h> 751558Srgrimes#include <grp.h> 761558Srgrimes#include <netdb.h> 771558Srgrimes#include <pwd.h> 781558Srgrimes#include <signal.h> 791558Srgrimes#include <stdio.h> 801558Srgrimes#include <stdlib.h> 811558Srgrimes#include <string.h> 821558Srgrimes#include <unistd.h> 831558Srgrimes#include "pathnames.h" 841558Srgrimes 851558Srgrimes#ifdef DEBUG 861558Srgrimes#include <stdarg.h> 871558Srgrimes#endif 881558Srgrimes 8974462Salfred#ifndef MOUNTDLOCK 9074462Salfred#define MOUNTDLOCK "/var/run/mountd.lock" 9174462Salfred#endif 9274462Salfred 931558Srgrimes/* 941558Srgrimes * Structures for keeping the mount list and export list 951558Srgrimes */ 961558Srgrimesstruct mountlist { 971558Srgrimes struct mountlist *ml_next; 981558Srgrimes char ml_host[RPCMNT_NAMELEN+1]; 991558Srgrimes char ml_dirp[RPCMNT_PATHLEN+1]; 1001558Srgrimes}; 1011558Srgrimes 1021558Srgrimesstruct dirlist { 1031558Srgrimes struct dirlist *dp_left; 1041558Srgrimes struct dirlist *dp_right; 1051558Srgrimes int dp_flag; 1061558Srgrimes struct hostlist *dp_hosts; /* List of hosts this dir exported to */ 1071558Srgrimes char dp_dirp[1]; /* Actually malloc'd to size of dir */ 1081558Srgrimes}; 1091558Srgrimes/* dp_flag bits */ 1101558Srgrimes#define DP_DEFSET 0x1 1119336Sdfr#define DP_HOSTSET 0x2 1129336Sdfr#define DP_KERB 0x4 1131558Srgrimes 1141558Srgrimesstruct exportlist { 1151558Srgrimes struct exportlist *ex_next; 1161558Srgrimes struct dirlist *ex_dirl; 1171558Srgrimes struct dirlist *ex_defdir; 1181558Srgrimes int ex_flag; 1191558Srgrimes fsid_t ex_fs; 1201558Srgrimes char *ex_fsdir; 12127447Sdfr char *ex_indexfile; 1221558Srgrimes}; 1231558Srgrimes/* ex_flag bits */ 1241558Srgrimes#define EX_LINKED 0x1 1251558Srgrimes 1261558Srgrimesstruct netmsk { 12774462Salfred struct sockaddr_storage nt_net; 12842144Sdfr u_int32_t nt_mask; 12942144Sdfr char *nt_name; 1301558Srgrimes}; 1311558Srgrimes 1321558Srgrimesunion grouptypes { 13374462Salfred struct addrinfo *gt_addrinfo; 1341558Srgrimes struct netmsk gt_net; 1351558Srgrimes}; 1361558Srgrimes 1371558Srgrimesstruct grouplist { 1381558Srgrimes int gr_type; 1391558Srgrimes union grouptypes gr_ptr; 1401558Srgrimes struct grouplist *gr_next; 1411558Srgrimes}; 1421558Srgrimes/* Group types */ 1431558Srgrimes#define GT_NULL 0x0 1441558Srgrimes#define GT_HOST 0x1 1451558Srgrimes#define GT_NET 0x2 1467401Swpaul#define GT_IGNORE 0x5 1471558Srgrimes 1481558Srgrimesstruct hostlist { 1499336Sdfr int ht_flag; /* Uses DP_xx bits */ 1501558Srgrimes struct grouplist *ht_grp; 1511558Srgrimes struct hostlist *ht_next; 1521558Srgrimes}; 1531558Srgrimes 1549336Sdfrstruct fhreturn { 1559336Sdfr int fhr_flag; 1569336Sdfr int fhr_vers; 1579336Sdfr nfsfh_t fhr_fh; 1589336Sdfr}; 1599336Sdfr 1601558Srgrimes/* Global defs */ 1611558Srgrimeschar *add_expdir __P((struct dirlist **, char *, int)); 1621558Srgrimesvoid add_dlist __P((struct dirlist **, struct dirlist *, 1639336Sdfr struct grouplist *, int)); 1641558Srgrimesvoid add_mlist __P((char *, char *)); 1651558Srgrimesint check_dirpath __P((char *)); 1661558Srgrimesint check_options __P((struct dirlist *)); 16774462Salfredint chk_host __P((struct dirlist *, struct sockaddr *, int *, int *)); 16874462Salfredint del_mlist __P((char *, char *, struct sockaddr *)); 1691558Srgrimesstruct dirlist *dirp_search __P((struct dirlist *, char *)); 1701558Srgrimesint do_mount __P((struct exportlist *, struct grouplist *, int, 17172650Sgreen struct xucred *, char *, int, struct statfs *)); 1721558Srgrimesint do_opt __P((char **, char **, struct exportlist *, struct grouplist *, 17372650Sgreen int *, int *, struct xucred *)); 1741558Srgrimesstruct exportlist *ex_search __P((fsid_t *)); 1751558Srgrimesstruct exportlist *get_exp __P((void)); 1761558Srgrimesvoid free_dir __P((struct dirlist *)); 1771558Srgrimesvoid free_exp __P((struct exportlist *)); 1781558Srgrimesvoid free_grp __P((struct grouplist *)); 1791558Srgrimesvoid free_host __P((struct hostlist *)); 1801558Srgrimesvoid get_exportlist __P((void)); 1817401Swpaulint get_host __P((char *, struct grouplist *, struct grouplist *)); 1829336Sdfrint get_num __P((char *)); 1831558Srgrimesstruct hostlist *get_ht __P((void)); 1841558Srgrimesint get_line __P((void)); 1851558Srgrimesvoid get_mountlist __P((void)); 1861558Srgrimesint get_net __P((char *, struct netmsk *, int)); 1871558Srgrimesvoid getexp_err __P((struct exportlist *, struct grouplist *)); 1881558Srgrimesstruct grouplist *get_grp __P((void)); 1891558Srgrimesvoid hang_dirp __P((struct dirlist *, struct grouplist *, 1901558Srgrimes struct exportlist *, int)); 1911558Srgrimesvoid mntsrv __P((struct svc_req *, SVCXPRT *)); 1921558Srgrimesvoid nextfield __P((char **, char **)); 1931558Srgrimesvoid out_of_mem __P((void)); 19472650Sgreenvoid parsecred __P((char *, struct xucred *)); 1951558Srgrimesint put_exlist __P((struct dirlist *, XDR *, struct dirlist *, int *)); 19674462Salfredint scan_tree __P((struct dirlist *, struct sockaddr *)); 19737663Scharnierstatic void usage __P((void)); 1981558Srgrimesint xdr_dir __P((XDR *, char *)); 1991558Srgrimesint xdr_explist __P((XDR *, caddr_t)); 2009336Sdfrint xdr_fhs __P((XDR *, caddr_t)); 2011558Srgrimesint xdr_mlist __P((XDR *, caddr_t)); 20274462Salfredvoid terminate __P((int)); 2031558Srgrimes 2041558Srgrimes/* C library */ 2051558Srgrimesint getnetgrent(); 2061558Srgrimesvoid endnetgrent(); 2071558Srgrimesvoid setnetgrent(); 2081558Srgrimes 20974462Salfredstatic int bitcmp __P((void *, void *, int)); 21074462Salfredstatic int netpartcmp __P((struct sockaddr *, struct sockaddr *, int)); 21174462Salfredstatic int sacmp __P((struct sockaddr *, struct sockaddr *)); 21274462Salfredstatic int allones __P((struct sockaddr_storage *, int)); 21374462Salfredstatic int countones __P((struct sockaddr *)); 21474462Salfred 2151558Srgrimesstruct exportlist *exphead; 2161558Srgrimesstruct mountlist *mlhead; 2171558Srgrimesstruct grouplist *grphead; 2181558Srgrimeschar exname[MAXPATHLEN]; 21972650Sgreenstruct xucred def_anon = { 22072650Sgreen 0, 22172650Sgreen (uid_t)-2, 2221558Srgrimes 1, 22372650Sgreen { (gid_t)-2 }, 22472650Sgreen NULL 2251558Srgrimes}; 22625087Sdfrint force_v2 = 0; 2279336Sdfrint resvport_only = 1; 2289336Sdfrint dir_only = 1; 22931705Sguidoint log = 0; 23074462Salfred 2311558Srgrimesint opt_flags; 23274462Salfredstatic int have_v6 = 1; 23374462Salfred#ifdef NI_WITHSCOPEID 23474462Salfredstatic const int ninumeric = NI_NUMERICHOST | NI_WITHSCOPEID; 23574462Salfred#else 23674462Salfredstatic const int ninumeric = NI_NUMERICHOST; 23774462Salfred#endif 23874462Salfred 23974462Salfredint mountdlockfd; 2401558Srgrimes/* Bits for above */ 2411558Srgrimes#define OP_MAPROOT 0x01 2421558Srgrimes#define OP_MAPALL 0x02 2431558Srgrimes#define OP_KERB 0x04 2441558Srgrimes#define OP_MASK 0x08 2451558Srgrimes#define OP_NET 0x10 2461558Srgrimes#define OP_ALLDIRS 0x40 24774462Salfred#define OP_MASKLEN 0x200 2481558Srgrimes 2491558Srgrimes#ifdef DEBUG 2501558Srgrimesint debug = 1; 2511558Srgrimesvoid SYSLOG __P((int, const char *, ...)); 2521558Srgrimes#define syslog SYSLOG 2531558Srgrimes#else 2541558Srgrimesint debug = 0; 2551558Srgrimes#endif 2561558Srgrimes 2571558Srgrimes/* 2581558Srgrimes * Mountd server for NFS mount protocol as described in: 2591558Srgrimes * NFS: Network File System Protocol Specification, RFC1094, Appendix A 2601558Srgrimes * The optional arguments are the exports file name 2611558Srgrimes * default: _PATH_EXPORTS 2621558Srgrimes * and "-n" to allow nonroot mount. 2631558Srgrimes */ 2641558Srgrimesint 2651558Srgrimesmain(argc, argv) 2661558Srgrimes int argc; 2671558Srgrimes char **argv; 2681558Srgrimes{ 26974462Salfred SVCXPRT *udptransp, *tcptransp, *udp6transp, *tcp6transp; 27074462Salfred struct netconfig *udpconf, *tcpconf, *udp6conf, *tcp6conf; 27174462Salfred int udpsock, tcpsock, udp6sock, tcp6sock; 27274462Salfred int xcreated = 0, s; 27374462Salfred int one = 1; 27432656Sbde int c, error, mib[3]; 27523681Speter struct vfsconf vfc; 2761558Srgrimes 27774462Salfred /* Check that another mountd isn't already running. */ 27874462Salfred 27974462Salfred if ((mountdlockfd = (open(MOUNTDLOCK, O_RDONLY|O_CREAT, 0444))) == -1) 28074462Salfred err(1, "%s", MOUNTDLOCK); 28174462Salfred 28274462Salfred if(flock(mountdlockfd, LOCK_EX|LOCK_NB) == -1 && errno == EWOULDBLOCK) 28374462Salfred errx(1, "another rpc.mountd is already running. Aborting"); 28474462Salfred s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); 28574462Salfred if (s < 0) 28674462Salfred have_v6 = 0; 28774462Salfred else 28874462Salfred close(s); 28923681Speter error = getvfsbyname("nfs", &vfc); 29023681Speter if (error && vfsisloadable("nfs")) { 2912999Swollman if(vfsload("nfs")) 2922999Swollman err(1, "vfsload(nfs)"); 2932999Swollman endvfsent(); /* flush cache */ 29423681Speter error = getvfsbyname("nfs", &vfc); 2952999Swollman } 29623681Speter if (error) 2972999Swollman errx(1, "NFS support is not available in the running kernel"); 2982999Swollman 29931665Sguido while ((c = getopt(argc, argv, "2dlnr")) != -1) 3001558Srgrimes switch (c) { 30125087Sdfr case '2': 30225087Sdfr force_v2 = 1; 30325087Sdfr break; 3049336Sdfr case 'n': 3059336Sdfr resvport_only = 0; 3069336Sdfr break; 3079336Sdfr case 'r': 3089336Sdfr dir_only = 0; 3099336Sdfr break; 3108688Sphk case 'd': 3118688Sphk debug = debug ? 0 : 1; 3128688Sphk break; 31331656Sguido case 'l': 31431656Sguido log = 1; 31531656Sguido break; 3161558Srgrimes default: 31737663Scharnier usage(); 3181558Srgrimes }; 3191558Srgrimes argc -= optind; 3201558Srgrimes argv += optind; 3211558Srgrimes grphead = (struct grouplist *)NULL; 3221558Srgrimes exphead = (struct exportlist *)NULL; 3231558Srgrimes mlhead = (struct mountlist *)NULL; 3241558Srgrimes if (argc == 1) { 3251558Srgrimes strncpy(exname, *argv, MAXPATHLEN-1); 3261558Srgrimes exname[MAXPATHLEN-1] = '\0'; 3271558Srgrimes } else 3281558Srgrimes strcpy(exname, _PATH_EXPORTS); 3291558Srgrimes openlog("mountd", LOG_PID, LOG_DAEMON); 3301558Srgrimes if (debug) 33137663Scharnier warnx("getting export list"); 3321558Srgrimes get_exportlist(); 3331558Srgrimes if (debug) 33437663Scharnier warnx("getting mount list"); 3351558Srgrimes get_mountlist(); 3361558Srgrimes if (debug) 33737663Scharnier warnx("here we go"); 3381558Srgrimes if (debug == 0) { 3391558Srgrimes daemon(0, 0); 3401558Srgrimes signal(SIGINT, SIG_IGN); 3411558Srgrimes signal(SIGQUIT, SIG_IGN); 3421558Srgrimes } 3431558Srgrimes signal(SIGHUP, (void (*) __P((int))) get_exportlist); 34474462Salfred signal(SIGTERM, terminate); 3451558Srgrimes { FILE *pidfile = fopen(_PATH_MOUNTDPID, "w"); 3461558Srgrimes if (pidfile != NULL) { 3471558Srgrimes fprintf(pidfile, "%d\n", getpid()); 3481558Srgrimes fclose(pidfile); 3491558Srgrimes } 3501558Srgrimes } 35174462Salfred rpcb_unset(RPCPROG_MNT, RPCMNT_VER1, NULL); 35274462Salfred rpcb_unset(RPCPROG_MNT, RPCMNT_VER3, NULL); 35374462Salfred udpsock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); 35474462Salfred tcpsock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); 35574462Salfred udp6sock = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); 35674462Salfred tcp6sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); 35774462Salfred /* 35874462Salfred * We're doing host-based access checks here, so don't allow 35974462Salfred * v4-in-v6 to confuse things. The kernel will disable it 36074462Salfred * by default on NFS sockets too. 36174462Salfred */ 36274462Salfred if (udp6sock != -1 && setsockopt(udp6sock, IPPROTO_IPV6, 36374462Salfred IPV6_BINDV6ONLY, &one, sizeof one) < 0){ 36474462Salfred syslog(LOG_ERR, "can't disable v4-in-v6 on UDP socket"); 36574462Salfred exit(1); 36674462Salfred } 36774462Salfred if (tcp6sock != -1 && setsockopt(tcp6sock, IPPROTO_IPV6, 36874462Salfred IPV6_BINDV6ONLY, &one, sizeof one) < 0){ 36974462Salfred syslog(LOG_ERR, "can't disable v4-in-v6 on UDP socket"); 37074462Salfred exit(1); 37174462Salfred } 37274462Salfred udpconf = getnetconfigent("udp"); 37374462Salfred tcpconf = getnetconfigent("tcp"); 37474462Salfred udp6conf = getnetconfigent("udp6"); 37574462Salfred tcp6conf = getnetconfigent("tcp6"); 37624759Sguido if (!resvport_only) { 37724759Sguido mib[0] = CTL_VFS; 37832656Sbde mib[1] = vfc.vfc_typenum; 37924759Sguido mib[2] = NFS_NFSPRIVPORT; 38024759Sguido if (sysctl(mib, 3, NULL, NULL, &resvport_only, 38124759Sguido sizeof(resvport_only)) != 0 && errno != ENOENT) { 38224759Sguido syslog(LOG_ERR, "sysctl: %m"); 38324759Sguido exit(1); 38424759Sguido } 38524330Sguido } 3869202Srgrimes if ((udptransp = svcudp_create(RPC_ANYSOCK)) == NULL || 3879202Srgrimes (tcptransp = svctcp_create(RPC_ANYSOCK, 0, 0)) == NULL) { 38837663Scharnier syslog(LOG_ERR, "can't create socket"); 3891558Srgrimes exit(1); 3901558Srgrimes } 39174462Salfred if (udpsock != -1 && udpconf != NULL) { 39274462Salfred bindresvport(udpsock, NULL); 39374462Salfred udptransp = svc_dg_create(udpsock, 0, 0); 39474462Salfred if (udptransp != NULL) { 39574462Salfred if (!svc_reg(udptransp, RPCPROG_MNT, RPCMNT_VER1, 39674462Salfred mntsrv, udpconf)) 39774462Salfred syslog(LOG_WARNING, "can't register UDP RPCMNT_VER1 service"); 39874462Salfred else 39974462Salfred xcreated++; 40074462Salfred if (!force_v2) { 40174462Salfred if (!svc_reg(udptransp, RPCPROG_MNT, RPCMNT_VER3, 40274462Salfred mntsrv, udpconf)) 40374462Salfred syslog(LOG_WARNING, "can't register UDP RPCMNT_VER3 service"); 40474462Salfred else 40574462Salfred xcreated++; 40674462Salfred } 40774462Salfred } else 40874462Salfred syslog(LOG_WARNING, "can't create UDP services"); 40974462Salfred 41074462Salfred } 41174462Salfred if (tcpsock != -1 && tcpconf != NULL) { 41274462Salfred bindresvport(tcpsock, NULL); 41374462Salfred listen(tcpsock, SOMAXCONN); 41474462Salfred tcptransp = svc_vc_create(tcpsock, 0, 0); 41574462Salfred if (tcptransp != NULL) { 41674462Salfred if (!svc_reg(tcptransp, RPCPROG_MNT, RPCMNT_VER1, 41774462Salfred mntsrv, tcpconf)) 41874462Salfred syslog(LOG_WARNING, "can't register TCP RPCMNT_VER1 service"); 41974462Salfred else 42074462Salfred xcreated++; 42174462Salfred if (!force_v2) { 42274462Salfred if (!svc_reg(tcptransp, RPCPROG_MNT, RPCMNT_VER3, 42374462Salfred mntsrv, tcpconf)) 42474462Salfred syslog(LOG_WARNING, "can't register TCP RPCMNT_VER3 service"); 42574462Salfred else 42674462Salfred xcreated++; 42774462Salfred } 42874462Salfred } else 42974462Salfred syslog(LOG_WARNING, "can't create TCP service"); 43074462Salfred 43174462Salfred } 43274462Salfred if (udp6sock != -1 && udp6conf != NULL) { 43374462Salfred bindresvport(udp6sock, NULL); 43474462Salfred udp6transp = svc_dg_create(udp6sock, 0, 0); 43574462Salfred if (udp6transp != NULL) { 43674462Salfred if (!svc_reg(udp6transp, RPCPROG_MNT, RPCMNT_VER1, 43774462Salfred mntsrv, udp6conf)) 43874462Salfred syslog(LOG_WARNING, "can't register UDP6 RPCMNT_VER1 service"); 43974462Salfred else 44074462Salfred xcreated++; 44174462Salfred if (!force_v2) { 44274462Salfred if (!svc_reg(udp6transp, RPCPROG_MNT, RPCMNT_VER3, 44374462Salfred mntsrv, udp6conf)) 44474462Salfred syslog(LOG_WARNING, "can't register UDP6 RPCMNT_VER3 service"); 44574462Salfred else 44674462Salfred xcreated++; 44774462Salfred } 44874462Salfred } else 44974462Salfred syslog(LOG_WARNING, "can't create UDP6 service"); 45074462Salfred 45174462Salfred } 45274462Salfred if (tcp6sock != -1 && tcp6conf != NULL) { 45374462Salfred bindresvport(tcp6sock, NULL); 45474462Salfred listen(tcp6sock, SOMAXCONN); 45574462Salfred tcp6transp = svc_vc_create(tcp6sock, 0, 0); 45674462Salfred if (tcp6transp != NULL) { 45774462Salfred if (!svc_reg(tcp6transp, RPCPROG_MNT, RPCMNT_VER1, 45874462Salfred mntsrv, tcp6conf)) 45974462Salfred syslog(LOG_WARNING, "can't register TCP6 RPCMNT_VER1 service"); 46074462Salfred else 46174462Salfred xcreated++; 46274462Salfred if (!force_v2) { 46374462Salfred if (!svc_reg(tcp6transp, RPCPROG_MNT, RPCMNT_VER3, 46474462Salfred mntsrv, tcp6conf)) 46574462Salfred syslog(LOG_WARNING, "can't register TCP6 RPCMNT_VER3 service"); 46674462Salfred else 46774462Salfred xcreated++; 46874462Salfred } 46974462Salfred } else 47074462Salfred syslog(LOG_WARNING, "can't create TCP6 service"); 47174462Salfred 47274462Salfred } 47374462Salfred if (xcreated == 0) { 47474462Salfred syslog(LOG_ERR, "could not create any services"); 4751558Srgrimes exit(1); 4761558Srgrimes } 4771558Srgrimes svc_run(); 47837663Scharnier syslog(LOG_ERR, "mountd died"); 4791558Srgrimes exit(1); 4801558Srgrimes} 4811558Srgrimes 48237663Scharnierstatic void 48337663Scharnierusage() 48437663Scharnier{ 48537663Scharnier fprintf(stderr, 48637663Scharnier "usage: mountd [-2] [-d] [-l] [-n] [-r] [export_file]\n"); 48737663Scharnier exit(1); 48837663Scharnier} 48937663Scharnier 4901558Srgrimes/* 4911558Srgrimes * The mount rpc service 4921558Srgrimes */ 4931558Srgrimesvoid 4941558Srgrimesmntsrv(rqstp, transp) 4951558Srgrimes struct svc_req *rqstp; 4961558Srgrimes SVCXPRT *transp; 4971558Srgrimes{ 4981558Srgrimes struct exportlist *ep; 4991558Srgrimes struct dirlist *dp; 5009336Sdfr struct fhreturn fhr; 5011558Srgrimes struct stat stb; 5021558Srgrimes struct statfs fsb; 50374462Salfred struct addrinfo *ai; 50474462Salfred char host[NI_MAXHOST], numerichost[NI_MAXHOST]; 50574462Salfred int lookup_failed = 1; 50674462Salfred struct sockaddr *saddr; 5079336Sdfr u_short sport; 50823681Speter char rpcpath[RPCMNT_PATHLEN + 1], dirpath[MAXPATHLEN]; 50928911Sguido int bad = 0, defset, hostset; 5109336Sdfr sigset_t sighup_mask; 51174462Salfred struct sockaddr_in6 *sin6; 51274462Salfred struct sockaddr_in *sin; 5131558Srgrimes 5149336Sdfr sigemptyset(&sighup_mask); 5159336Sdfr sigaddset(&sighup_mask, SIGHUP); 51674462Salfred saddr = svc_getrpccaller(transp)->buf; 51774462Salfred switch (saddr->sa_family) { 51874462Salfred case AF_INET6: 51974462Salfred sin6 = (struct sockaddr_in6 *)saddr; 52074462Salfred sport = ntohs(sin6->sin6_port); 52174462Salfred break; 52274462Salfred case AF_INET: 52374462Salfred sin = (struct sockaddr_in *)saddr; 52474462Salfred sport = ntohs(sin->sin_port); 52574462Salfred break; 52674462Salfred default: 52774462Salfred syslog(LOG_ERR, "request from unknown address family"); 52874462Salfred return; 52974462Salfred } 53074462Salfred lookup_failed = getnameinfo(saddr, saddr->sa_len, host, sizeof host, 53174462Salfred NULL, 0, 0); 53274462Salfred getnameinfo(saddr, saddr->sa_len, numerichost, 53374462Salfred sizeof numerichost, NULL, 0, NI_NUMERICHOST); 53474462Salfred ai = NULL; 5351558Srgrimes switch (rqstp->rq_proc) { 5361558Srgrimes case NULLPROC: 5371558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 53837663Scharnier syslog(LOG_ERR, "can't send reply"); 5391558Srgrimes return; 5401558Srgrimes case RPCMNT_MOUNT: 5419336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 54231656Sguido syslog(LOG_NOTICE, 54331656Sguido "mount request from %s from unprivileged port", 54474462Salfred numerichost); 5451558Srgrimes svcerr_weakauth(transp); 5461558Srgrimes return; 5471558Srgrimes } 5481558Srgrimes if (!svc_getargs(transp, xdr_dir, rpcpath)) { 54931656Sguido syslog(LOG_NOTICE, "undecodable mount request from %s", 55074462Salfred numerichost); 5511558Srgrimes svcerr_decode(transp); 5521558Srgrimes return; 5531558Srgrimes } 5541558Srgrimes 5551558Srgrimes /* 5561558Srgrimes * Get the real pathname and make sure it is a directory 5579336Sdfr * or a regular file if the -r option was specified 5589336Sdfr * and it exists. 5591558Srgrimes */ 56051968Salfred if (realpath(rpcpath, dirpath) == NULL || 5611558Srgrimes stat(dirpath, &stb) < 0 || 5629336Sdfr (!S_ISDIR(stb.st_mode) && 56374462Salfred (dir_only || !S_ISREG(stb.st_mode))) || 5641558Srgrimes statfs(dirpath, &fsb) < 0) { 5651558Srgrimes chdir("/"); /* Just in case realpath doesn't */ 56631656Sguido syslog(LOG_NOTICE, 56737663Scharnier "mount request from %s for non existent path %s", 56874462Salfred numerichost, dirpath); 5691558Srgrimes if (debug) 57037663Scharnier warnx("stat failed on %s", dirpath); 57128911Sguido bad = ENOENT; /* We will send error reply later */ 5721558Srgrimes } 5731558Srgrimes 5741558Srgrimes /* Check in the exports list */ 5759336Sdfr sigprocmask(SIG_BLOCK, &sighup_mask, NULL); 5761558Srgrimes ep = ex_search(&fsb.f_fsid); 5779336Sdfr hostset = defset = 0; 5789336Sdfr if (ep && (chk_host(ep->ex_defdir, saddr, &defset, &hostset) || 5791558Srgrimes ((dp = dirp_search(ep->ex_dirl, dirpath)) && 58074462Salfred chk_host(dp, saddr, &defset, &hostset)) || 58174462Salfred (defset && scan_tree(ep->ex_defdir, saddr) == 0 && 58274462Salfred scan_tree(ep->ex_dirl, saddr) == 0))) { 58328911Sguido if (bad) { 58428911Sguido if (!svc_sendreply(transp, xdr_long, 58528911Sguido (caddr_t)&bad)) 58637663Scharnier syslog(LOG_ERR, "can't send reply"); 58728911Sguido sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 58828911Sguido return; 58928911Sguido } 5909336Sdfr if (hostset & DP_HOSTSET) 5919336Sdfr fhr.fhr_flag = hostset; 5929336Sdfr else 5939336Sdfr fhr.fhr_flag = defset; 5949336Sdfr fhr.fhr_vers = rqstp->rq_vers; 5951558Srgrimes /* Get the file handle */ 59623681Speter memset(&fhr.fhr_fh, 0, sizeof(nfsfh_t)); 5979336Sdfr if (getfh(dirpath, (fhandle_t *)&fhr.fhr_fh) < 0) { 5981558Srgrimes bad = errno; 59937663Scharnier syslog(LOG_ERR, "can't get fh for %s", dirpath); 6001558Srgrimes if (!svc_sendreply(transp, xdr_long, 6011558Srgrimes (caddr_t)&bad)) 60237663Scharnier syslog(LOG_ERR, "can't send reply"); 6039336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 6041558Srgrimes return; 6051558Srgrimes } 6069336Sdfr if (!svc_sendreply(transp, xdr_fhs, (caddr_t)&fhr)) 60737663Scharnier syslog(LOG_ERR, "can't send reply"); 60874462Salfred if (!lookup_failed) 60974462Salfred add_mlist(host, dirpath); 6101558Srgrimes else 61174462Salfred add_mlist(numerichost, dirpath); 6121558Srgrimes if (debug) 61337663Scharnier warnx("mount successful"); 61431656Sguido if (log) 61531656Sguido syslog(LOG_NOTICE, 61631656Sguido "mount request succeeded from %s for %s", 61774462Salfred numerichost, dirpath); 61831656Sguido } else { 6191558Srgrimes bad = EACCES; 62031656Sguido syslog(LOG_NOTICE, 62131656Sguido "mount request denied from %s for %s", 62274462Salfred numerichost, dirpath); 62331656Sguido } 62428911Sguido 62528911Sguido if (bad && !svc_sendreply(transp, xdr_long, (caddr_t)&bad)) 62637663Scharnier syslog(LOG_ERR, "can't send reply"); 6279336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 6281558Srgrimes return; 6291558Srgrimes case RPCMNT_DUMP: 6301558Srgrimes if (!svc_sendreply(transp, xdr_mlist, (caddr_t)NULL)) 63137663Scharnier syslog(LOG_ERR, "can't send reply"); 63231656Sguido else if (log) 63331656Sguido syslog(LOG_NOTICE, 63431656Sguido "dump request succeeded from %s", 63574462Salfred numerichost); 6361558Srgrimes return; 6371558Srgrimes case RPCMNT_UMOUNT: 6389336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 63931656Sguido syslog(LOG_NOTICE, 64031656Sguido "umount request from %s from unprivileged port", 64174462Salfred numerichost); 6421558Srgrimes svcerr_weakauth(transp); 6431558Srgrimes return; 6441558Srgrimes } 64551968Salfred if (!svc_getargs(transp, xdr_dir, rpcpath)) { 64631656Sguido syslog(LOG_NOTICE, "undecodable umount request from %s", 64774462Salfred numerichost); 6481558Srgrimes svcerr_decode(transp); 6491558Srgrimes return; 6501558Srgrimes } 65151968Salfred if (realpath(rpcpath, dirpath) == NULL) { 65251968Salfred syslog(LOG_NOTICE, "umount request from %s " 65351968Salfred "for non existent path %s", 65474462Salfred numerichost, dirpath); 65551968Salfred } 6561558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 65737663Scharnier syslog(LOG_ERR, "can't send reply"); 65874462Salfred if (!lookup_failed) 65974462Salfred del_mlist(host, dirpath, saddr); 66074462Salfred del_mlist(numerichost, dirpath, saddr); 66131656Sguido if (log) 66231656Sguido syslog(LOG_NOTICE, 66331656Sguido "umount request succeeded from %s for %s", 66474462Salfred numerichost, dirpath); 6651558Srgrimes return; 6661558Srgrimes case RPCMNT_UMNTALL: 6679336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 66831656Sguido syslog(LOG_NOTICE, 66931656Sguido "umountall request from %s from unprivileged port", 67074462Salfred numerichost); 6711558Srgrimes svcerr_weakauth(transp); 6721558Srgrimes return; 6731558Srgrimes } 6741558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 67537663Scharnier syslog(LOG_ERR, "can't send reply"); 67674462Salfred if (!lookup_failed) 67774462Salfred del_mlist(host, NULL, saddr); 67874462Salfred del_mlist(numerichost, NULL, saddr); 67931656Sguido if (log) 68031656Sguido syslog(LOG_NOTICE, 68131656Sguido "umountall request succeeded from %s", 68274462Salfred numerichost); 6831558Srgrimes return; 6841558Srgrimes case RPCMNT_EXPORT: 6851558Srgrimes if (!svc_sendreply(transp, xdr_explist, (caddr_t)NULL)) 68637663Scharnier syslog(LOG_ERR, "can't send reply"); 68731656Sguido if (log) 68831656Sguido syslog(LOG_NOTICE, 68931656Sguido "export request succeeded from %s", 69074462Salfred numerichost); 6911558Srgrimes return; 6921558Srgrimes default: 6931558Srgrimes svcerr_noproc(transp); 6941558Srgrimes return; 6951558Srgrimes } 6961558Srgrimes} 6971558Srgrimes 6981558Srgrimes/* 6991558Srgrimes * Xdr conversion for a dirpath string 7001558Srgrimes */ 7011558Srgrimesint 7021558Srgrimesxdr_dir(xdrsp, dirp) 7031558Srgrimes XDR *xdrsp; 7041558Srgrimes char *dirp; 7051558Srgrimes{ 7061558Srgrimes return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN)); 7071558Srgrimes} 7081558Srgrimes 7091558Srgrimes/* 7109336Sdfr * Xdr routine to generate file handle reply 7111558Srgrimes */ 7121558Srgrimesint 7139336Sdfrxdr_fhs(xdrsp, cp) 7141558Srgrimes XDR *xdrsp; 7159336Sdfr caddr_t cp; 7161558Srgrimes{ 7179336Sdfr register struct fhreturn *fhrp = (struct fhreturn *)cp; 7189336Sdfr u_long ok = 0, len, auth; 7191558Srgrimes 7201558Srgrimes if (!xdr_long(xdrsp, &ok)) 7211558Srgrimes return (0); 7229336Sdfr switch (fhrp->fhr_vers) { 7239336Sdfr case 1: 7249336Sdfr return (xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, NFSX_V2FH)); 7259336Sdfr case 3: 7269336Sdfr len = NFSX_V3FH; 7279336Sdfr if (!xdr_long(xdrsp, &len)) 7289336Sdfr return (0); 7299336Sdfr if (!xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, len)) 7309336Sdfr return (0); 7319336Sdfr if (fhrp->fhr_flag & DP_KERB) 7329336Sdfr auth = RPCAUTH_KERB4; 7339336Sdfr else 7349336Sdfr auth = RPCAUTH_UNIX; 7359336Sdfr len = 1; 7369336Sdfr if (!xdr_long(xdrsp, &len)) 7379336Sdfr return (0); 7389336Sdfr return (xdr_long(xdrsp, &auth)); 7399336Sdfr }; 7409336Sdfr return (0); 7411558Srgrimes} 7421558Srgrimes 7431558Srgrimesint 7441558Srgrimesxdr_mlist(xdrsp, cp) 7451558Srgrimes XDR *xdrsp; 7461558Srgrimes caddr_t cp; 7471558Srgrimes{ 7481558Srgrimes struct mountlist *mlp; 7491558Srgrimes int true = 1; 7501558Srgrimes int false = 0; 7511558Srgrimes char *strp; 7521558Srgrimes 7531558Srgrimes mlp = mlhead; 7541558Srgrimes while (mlp) { 7551558Srgrimes if (!xdr_bool(xdrsp, &true)) 7561558Srgrimes return (0); 7571558Srgrimes strp = &mlp->ml_host[0]; 7581558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN)) 7591558Srgrimes return (0); 7601558Srgrimes strp = &mlp->ml_dirp[0]; 7611558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 7621558Srgrimes return (0); 7631558Srgrimes mlp = mlp->ml_next; 7641558Srgrimes } 7651558Srgrimes if (!xdr_bool(xdrsp, &false)) 7661558Srgrimes return (0); 7671558Srgrimes return (1); 7681558Srgrimes} 7691558Srgrimes 7701558Srgrimes/* 7711558Srgrimes * Xdr conversion for export list 7721558Srgrimes */ 7731558Srgrimesint 7741558Srgrimesxdr_explist(xdrsp, cp) 7751558Srgrimes XDR *xdrsp; 7761558Srgrimes caddr_t cp; 7771558Srgrimes{ 7781558Srgrimes struct exportlist *ep; 7791558Srgrimes int false = 0; 7809336Sdfr int putdef; 7819336Sdfr sigset_t sighup_mask; 7821558Srgrimes 7839336Sdfr sigemptyset(&sighup_mask); 7849336Sdfr sigaddset(&sighup_mask, SIGHUP); 7859336Sdfr sigprocmask(SIG_BLOCK, &sighup_mask, NULL); 7861558Srgrimes ep = exphead; 7871558Srgrimes while (ep) { 7881558Srgrimes putdef = 0; 7891558Srgrimes if (put_exlist(ep->ex_dirl, xdrsp, ep->ex_defdir, &putdef)) 7901558Srgrimes goto errout; 7911558Srgrimes if (ep->ex_defdir && putdef == 0 && 7921558Srgrimes put_exlist(ep->ex_defdir, xdrsp, (struct dirlist *)NULL, 7931558Srgrimes &putdef)) 7941558Srgrimes goto errout; 7951558Srgrimes ep = ep->ex_next; 7961558Srgrimes } 7979336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 7981558Srgrimes if (!xdr_bool(xdrsp, &false)) 7991558Srgrimes return (0); 8001558Srgrimes return (1); 8011558Srgrimeserrout: 8029336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 8031558Srgrimes return (0); 8041558Srgrimes} 8051558Srgrimes 8061558Srgrimes/* 8071558Srgrimes * Called from xdr_explist() to traverse the tree and export the 8081558Srgrimes * directory paths. 8091558Srgrimes */ 8101558Srgrimesint 8111558Srgrimesput_exlist(dp, xdrsp, adp, putdefp) 8121558Srgrimes struct dirlist *dp; 8131558Srgrimes XDR *xdrsp; 8141558Srgrimes struct dirlist *adp; 8151558Srgrimes int *putdefp; 8161558Srgrimes{ 8171558Srgrimes struct grouplist *grp; 8181558Srgrimes struct hostlist *hp; 8191558Srgrimes int true = 1; 8201558Srgrimes int false = 0; 8211558Srgrimes int gotalldir = 0; 8221558Srgrimes char *strp; 8231558Srgrimes 8241558Srgrimes if (dp) { 8251558Srgrimes if (put_exlist(dp->dp_left, xdrsp, adp, putdefp)) 8261558Srgrimes return (1); 8271558Srgrimes if (!xdr_bool(xdrsp, &true)) 8281558Srgrimes return (1); 8291558Srgrimes strp = dp->dp_dirp; 8301558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 8311558Srgrimes return (1); 8321558Srgrimes if (adp && !strcmp(dp->dp_dirp, adp->dp_dirp)) { 8331558Srgrimes gotalldir = 1; 8341558Srgrimes *putdefp = 1; 8351558Srgrimes } 8361558Srgrimes if ((dp->dp_flag & DP_DEFSET) == 0 && 8371558Srgrimes (gotalldir == 0 || (adp->dp_flag & DP_DEFSET) == 0)) { 8381558Srgrimes hp = dp->dp_hosts; 8391558Srgrimes while (hp) { 8401558Srgrimes grp = hp->ht_grp; 8411558Srgrimes if (grp->gr_type == GT_HOST) { 8421558Srgrimes if (!xdr_bool(xdrsp, &true)) 8431558Srgrimes return (1); 84474462Salfred strp = grp->gr_ptr.gt_addrinfo->ai_canonname; 8458871Srgrimes if (!xdr_string(xdrsp, &strp, 8461558Srgrimes RPCMNT_NAMELEN)) 8471558Srgrimes return (1); 8481558Srgrimes } else if (grp->gr_type == GT_NET) { 8491558Srgrimes if (!xdr_bool(xdrsp, &true)) 8501558Srgrimes return (1); 8511558Srgrimes strp = grp->gr_ptr.gt_net.nt_name; 8528871Srgrimes if (!xdr_string(xdrsp, &strp, 8531558Srgrimes RPCMNT_NAMELEN)) 8541558Srgrimes return (1); 8551558Srgrimes } 8561558Srgrimes hp = hp->ht_next; 8571558Srgrimes if (gotalldir && hp == (struct hostlist *)NULL) { 8581558Srgrimes hp = adp->dp_hosts; 8591558Srgrimes gotalldir = 0; 8601558Srgrimes } 8611558Srgrimes } 8621558Srgrimes } 8631558Srgrimes if (!xdr_bool(xdrsp, &false)) 8641558Srgrimes return (1); 8651558Srgrimes if (put_exlist(dp->dp_right, xdrsp, adp, putdefp)) 8661558Srgrimes return (1); 8671558Srgrimes } 8681558Srgrimes return (0); 8691558Srgrimes} 8701558Srgrimes 8711558Srgrimes#define LINESIZ 10240 8721558Srgrimeschar line[LINESIZ]; 8731558SrgrimesFILE *exp_file; 8741558Srgrimes 8751558Srgrimes/* 8761558Srgrimes * Get the export list 8771558Srgrimes */ 8781558Srgrimesvoid 8791558Srgrimesget_exportlist() 8801558Srgrimes{ 8811558Srgrimes struct exportlist *ep, *ep2; 8821558Srgrimes struct grouplist *grp, *tgrp; 8831558Srgrimes struct exportlist **epp; 8841558Srgrimes struct dirlist *dirhead; 8851558Srgrimes struct statfs fsb, *fsp; 88674462Salfred struct addrinfo *ai; 88772650Sgreen struct xucred anon; 8881558Srgrimes char *cp, *endcp, *dirp, *hst, *usr, *dom, savedc; 8891558Srgrimes int len, has_host, exflags, got_nondir, dirplen, num, i, netgrp; 8901558Srgrimes 89151968Salfred dirp = NULL; 89251968Salfred dirplen = 0; 89351968Salfred 8941558Srgrimes /* 8951558Srgrimes * First, get rid of the old list 8961558Srgrimes */ 8971558Srgrimes ep = exphead; 8981558Srgrimes while (ep) { 8991558Srgrimes ep2 = ep; 9001558Srgrimes ep = ep->ex_next; 9011558Srgrimes free_exp(ep2); 9021558Srgrimes } 9031558Srgrimes exphead = (struct exportlist *)NULL; 9041558Srgrimes 9051558Srgrimes grp = grphead; 9061558Srgrimes while (grp) { 9071558Srgrimes tgrp = grp; 9081558Srgrimes grp = grp->gr_next; 9091558Srgrimes free_grp(tgrp); 9101558Srgrimes } 9111558Srgrimes grphead = (struct grouplist *)NULL; 9121558Srgrimes 9131558Srgrimes /* 9141558Srgrimes * And delete exports that are in the kernel for all local 9151558Srgrimes * file systems. 9161558Srgrimes * XXX: Should know how to handle all local exportable file systems 91723681Speter * instead of just "ufs". 9181558Srgrimes */ 9191558Srgrimes num = getmntinfo(&fsp, MNT_NOWAIT); 9201558Srgrimes for (i = 0; i < num; i++) { 9211558Srgrimes union { 9221558Srgrimes struct ufs_args ua; 9231558Srgrimes struct iso_args ia; 9241558Srgrimes struct mfs_args ma; 9259336Sdfr struct msdosfs_args da; 92654093Ssemenu struct ntfs_args na; 9271558Srgrimes } targs; 9281558Srgrimes 92923681Speter if (!strcmp(fsp->f_fstypename, "mfs") || 93023681Speter !strcmp(fsp->f_fstypename, "ufs") || 93123681Speter !strcmp(fsp->f_fstypename, "msdos") || 93254093Ssemenu !strcmp(fsp->f_fstypename, "ntfs") || 93323681Speter !strcmp(fsp->f_fstypename, "cd9660")) { 9349336Sdfr targs.ua.fspec = NULL; 9359336Sdfr targs.ua.export.ex_flags = MNT_DELEXPORT; 9369336Sdfr if (mount(fsp->f_fstypename, fsp->f_mntonname, 9371558Srgrimes fsp->f_flags | MNT_UPDATE, 9381558Srgrimes (caddr_t)&targs) < 0) 93937663Scharnier syslog(LOG_ERR, "can't delete exports for %s", 94074462Salfred fsp->f_mntonname); 9411558Srgrimes } 9421558Srgrimes fsp++; 9431558Srgrimes } 9441558Srgrimes 9451558Srgrimes /* 9461558Srgrimes * Read in the exports file and build the list, calling 9471558Srgrimes * mount() as we go along to push the export rules into the kernel. 9481558Srgrimes */ 9491558Srgrimes if ((exp_file = fopen(exname, "r")) == NULL) { 95037663Scharnier syslog(LOG_ERR, "can't open %s", exname); 9511558Srgrimes exit(2); 9521558Srgrimes } 9531558Srgrimes dirhead = (struct dirlist *)NULL; 9541558Srgrimes while (get_line()) { 9551558Srgrimes if (debug) 95637663Scharnier warnx("got line %s", line); 9571558Srgrimes cp = line; 9581558Srgrimes nextfield(&cp, &endcp); 9591558Srgrimes if (*cp == '#') 9601558Srgrimes goto nextline; 9611558Srgrimes 9621558Srgrimes /* 9631558Srgrimes * Set defaults. 9641558Srgrimes */ 9651558Srgrimes has_host = FALSE; 9661558Srgrimes anon = def_anon; 9671558Srgrimes exflags = MNT_EXPORTED; 9681558Srgrimes got_nondir = 0; 9691558Srgrimes opt_flags = 0; 9701558Srgrimes ep = (struct exportlist *)NULL; 9711558Srgrimes 9721558Srgrimes /* 9731558Srgrimes * Create new exports list entry 9741558Srgrimes */ 9751558Srgrimes len = endcp-cp; 9761558Srgrimes tgrp = grp = get_grp(); 9771558Srgrimes while (len > 0) { 9781558Srgrimes if (len > RPCMNT_NAMELEN) { 9791558Srgrimes getexp_err(ep, tgrp); 9801558Srgrimes goto nextline; 9811558Srgrimes } 9821558Srgrimes if (*cp == '-') { 9831558Srgrimes if (ep == (struct exportlist *)NULL) { 9841558Srgrimes getexp_err(ep, tgrp); 9851558Srgrimes goto nextline; 9861558Srgrimes } 9871558Srgrimes if (debug) 98837663Scharnier warnx("doing opt %s", cp); 9891558Srgrimes got_nondir = 1; 9901558Srgrimes if (do_opt(&cp, &endcp, ep, grp, &has_host, 9911558Srgrimes &exflags, &anon)) { 9921558Srgrimes getexp_err(ep, tgrp); 9931558Srgrimes goto nextline; 9941558Srgrimes } 9951558Srgrimes } else if (*cp == '/') { 9961558Srgrimes savedc = *endcp; 9971558Srgrimes *endcp = '\0'; 9981558Srgrimes if (check_dirpath(cp) && 9991558Srgrimes statfs(cp, &fsb) >= 0) { 10001558Srgrimes if (got_nondir) { 100137663Scharnier syslog(LOG_ERR, "dirs must be first"); 10021558Srgrimes getexp_err(ep, tgrp); 10031558Srgrimes goto nextline; 10041558Srgrimes } 10051558Srgrimes if (ep) { 10061558Srgrimes if (ep->ex_fs.val[0] != fsb.f_fsid.val[0] || 10071558Srgrimes ep->ex_fs.val[1] != fsb.f_fsid.val[1]) { 10081558Srgrimes getexp_err(ep, tgrp); 10091558Srgrimes goto nextline; 10101558Srgrimes } 10111558Srgrimes } else { 10121558Srgrimes /* 10131558Srgrimes * See if this directory is already 10141558Srgrimes * in the list. 10151558Srgrimes */ 10161558Srgrimes ep = ex_search(&fsb.f_fsid); 10171558Srgrimes if (ep == (struct exportlist *)NULL) { 10181558Srgrimes ep = get_exp(); 10191558Srgrimes ep->ex_fs = fsb.f_fsid; 10201558Srgrimes ep->ex_fsdir = (char *) 10211558Srgrimes malloc(strlen(fsb.f_mntonname) + 1); 10221558Srgrimes if (ep->ex_fsdir) 10231558Srgrimes strcpy(ep->ex_fsdir, 10241558Srgrimes fsb.f_mntonname); 10251558Srgrimes else 10261558Srgrimes out_of_mem(); 10271558Srgrimes if (debug) 102874462Salfred warnx("making new ep fs=0x%x,0x%x", 102974462Salfred fsb.f_fsid.val[0], 103074462Salfred fsb.f_fsid.val[1]); 10311558Srgrimes } else if (debug) 103237663Scharnier warnx("found ep fs=0x%x,0x%x", 10331558Srgrimes fsb.f_fsid.val[0], 10341558Srgrimes fsb.f_fsid.val[1]); 10351558Srgrimes } 10361558Srgrimes 10371558Srgrimes /* 10381558Srgrimes * Add dirpath to export mount point. 10391558Srgrimes */ 10401558Srgrimes dirp = add_expdir(&dirhead, cp, len); 10411558Srgrimes dirplen = len; 10421558Srgrimes } else { 10431558Srgrimes getexp_err(ep, tgrp); 10441558Srgrimes goto nextline; 10451558Srgrimes } 10461558Srgrimes *endcp = savedc; 10471558Srgrimes } else { 10481558Srgrimes savedc = *endcp; 10491558Srgrimes *endcp = '\0'; 10501558Srgrimes got_nondir = 1; 10511558Srgrimes if (ep == (struct exportlist *)NULL) { 10521558Srgrimes getexp_err(ep, tgrp); 10531558Srgrimes goto nextline; 10541558Srgrimes } 10551558Srgrimes 10561558Srgrimes /* 10571558Srgrimes * Get the host or netgroup. 10581558Srgrimes */ 10591558Srgrimes setnetgrent(cp); 10601558Srgrimes netgrp = getnetgrent(&hst, &usr, &dom); 10611558Srgrimes do { 10621558Srgrimes if (has_host) { 10631558Srgrimes grp->gr_next = get_grp(); 10641558Srgrimes grp = grp->gr_next; 10651558Srgrimes } 10661558Srgrimes if (netgrp) { 106737003Sjoerg if (hst == 0) { 106837663Scharnier syslog(LOG_ERR, 106937663Scharnier "null hostname in netgroup %s, skipping", cp); 107037004Sjoerg grp->gr_type = GT_IGNORE; 107137003Sjoerg } else if (get_host(hst, grp, tgrp)) { 107237663Scharnier syslog(LOG_ERR, 107337663Scharnier "bad host %s in netgroup %s, skipping", hst, cp); 107429317Sjlemon grp->gr_type = GT_IGNORE; 10751558Srgrimes } 10767401Swpaul } else if (get_host(cp, grp, tgrp)) { 107737663Scharnier syslog(LOG_ERR, "bad host %s, skipping", cp); 107829317Sjlemon grp->gr_type = GT_IGNORE; 10791558Srgrimes } 10801558Srgrimes has_host = TRUE; 10811558Srgrimes } while (netgrp && getnetgrent(&hst, &usr, &dom)); 10821558Srgrimes endnetgrent(); 10831558Srgrimes *endcp = savedc; 10841558Srgrimes } 10851558Srgrimes cp = endcp; 10861558Srgrimes nextfield(&cp, &endcp); 10871558Srgrimes len = endcp - cp; 10881558Srgrimes } 10891558Srgrimes if (check_options(dirhead)) { 10901558Srgrimes getexp_err(ep, tgrp); 10911558Srgrimes goto nextline; 10921558Srgrimes } 10931558Srgrimes if (!has_host) { 10941558Srgrimes grp->gr_type = GT_HOST; 10951558Srgrimes if (debug) 109637663Scharnier warnx("adding a default entry"); 10971558Srgrimes /* add a default group and make the grp list NULL */ 109874462Salfred ai = malloc(sizeof(struct addrinfo)); 109974462Salfred ai->ai_flags = 0; 110074462Salfred ai->ai_family = AF_INET; /* XXXX */ 110174462Salfred ai->ai_socktype = SOCK_DGRAM; 110274462Salfred /* setting the length to 0 will match anything */ 110374462Salfred ai->ai_addrlen = 0; 110474462Salfred ai->ai_flags = AI_CANONNAME; 110574462Salfred ai->ai_canonname = strdup("Default"); 110674462Salfred ai->ai_addr = NULL; 110774462Salfred ai->ai_next = NULL; 110874462Salfred grp->gr_ptr.gt_addrinfo = ai; 11091558Srgrimes 11101558Srgrimes /* 11111558Srgrimes * Don't allow a network export coincide with a list of 11121558Srgrimes * host(s) on the same line. 11131558Srgrimes */ 11141558Srgrimes } else if ((opt_flags & OP_NET) && tgrp->gr_next) { 11151558Srgrimes getexp_err(ep, tgrp); 11161558Srgrimes goto nextline; 111729317Sjlemon 111874462Salfred /* 111974462Salfred * If an export list was specified on this line, make sure 112029317Sjlemon * that we have at least one valid entry, otherwise skip it. 112129317Sjlemon */ 112229317Sjlemon } else { 112329317Sjlemon grp = tgrp; 112474462Salfred while (grp && grp->gr_type == GT_IGNORE) 112529317Sjlemon grp = grp->gr_next; 112629317Sjlemon if (! grp) { 112729317Sjlemon getexp_err(ep, tgrp); 112829317Sjlemon goto nextline; 112929317Sjlemon } 11301558Srgrimes } 11311558Srgrimes 11321558Srgrimes /* 11331558Srgrimes * Loop through hosts, pushing the exports into the kernel. 11341558Srgrimes * After loop, tgrp points to the start of the list and 11351558Srgrimes * grp points to the last entry in the list. 11361558Srgrimes */ 11371558Srgrimes grp = tgrp; 11381558Srgrimes do { 11391558Srgrimes if (do_mount(ep, grp, exflags, &anon, dirp, 11401558Srgrimes dirplen, &fsb)) { 11411558Srgrimes getexp_err(ep, tgrp); 11421558Srgrimes goto nextline; 11431558Srgrimes } 11441558Srgrimes } while (grp->gr_next && (grp = grp->gr_next)); 11451558Srgrimes 11461558Srgrimes /* 11471558Srgrimes * Success. Update the data structures. 11481558Srgrimes */ 11491558Srgrimes if (has_host) { 11509336Sdfr hang_dirp(dirhead, tgrp, ep, opt_flags); 11511558Srgrimes grp->gr_next = grphead; 11521558Srgrimes grphead = tgrp; 11531558Srgrimes } else { 11541558Srgrimes hang_dirp(dirhead, (struct grouplist *)NULL, ep, 11559336Sdfr opt_flags); 11561558Srgrimes free_grp(grp); 11571558Srgrimes } 11581558Srgrimes dirhead = (struct dirlist *)NULL; 11591558Srgrimes if ((ep->ex_flag & EX_LINKED) == 0) { 11601558Srgrimes ep2 = exphead; 11611558Srgrimes epp = &exphead; 11621558Srgrimes 11631558Srgrimes /* 11641558Srgrimes * Insert in the list in alphabetical order. 11651558Srgrimes */ 11661558Srgrimes while (ep2 && strcmp(ep2->ex_fsdir, ep->ex_fsdir) < 0) { 11671558Srgrimes epp = &ep2->ex_next; 11681558Srgrimes ep2 = ep2->ex_next; 11691558Srgrimes } 11701558Srgrimes if (ep2) 11711558Srgrimes ep->ex_next = ep2; 11721558Srgrimes *epp = ep; 11731558Srgrimes ep->ex_flag |= EX_LINKED; 11741558Srgrimes } 11751558Srgrimesnextline: 11761558Srgrimes if (dirhead) { 11771558Srgrimes free_dir(dirhead); 11781558Srgrimes dirhead = (struct dirlist *)NULL; 11791558Srgrimes } 11801558Srgrimes } 11811558Srgrimes fclose(exp_file); 11821558Srgrimes} 11831558Srgrimes 11841558Srgrimes/* 11851558Srgrimes * Allocate an export list element 11861558Srgrimes */ 11871558Srgrimesstruct exportlist * 11881558Srgrimesget_exp() 11891558Srgrimes{ 11901558Srgrimes struct exportlist *ep; 11911558Srgrimes 11921558Srgrimes ep = (struct exportlist *)malloc(sizeof (struct exportlist)); 11931558Srgrimes if (ep == (struct exportlist *)NULL) 11941558Srgrimes out_of_mem(); 119523681Speter memset(ep, 0, sizeof(struct exportlist)); 11961558Srgrimes return (ep); 11971558Srgrimes} 11981558Srgrimes 11991558Srgrimes/* 12001558Srgrimes * Allocate a group list element 12011558Srgrimes */ 12021558Srgrimesstruct grouplist * 12031558Srgrimesget_grp() 12041558Srgrimes{ 12051558Srgrimes struct grouplist *gp; 12061558Srgrimes 12071558Srgrimes gp = (struct grouplist *)malloc(sizeof (struct grouplist)); 12081558Srgrimes if (gp == (struct grouplist *)NULL) 12091558Srgrimes out_of_mem(); 121023681Speter memset(gp, 0, sizeof(struct grouplist)); 12111558Srgrimes return (gp); 12121558Srgrimes} 12131558Srgrimes 12141558Srgrimes/* 12151558Srgrimes * Clean up upon an error in get_exportlist(). 12161558Srgrimes */ 12171558Srgrimesvoid 12181558Srgrimesgetexp_err(ep, grp) 12191558Srgrimes struct exportlist *ep; 12201558Srgrimes struct grouplist *grp; 12211558Srgrimes{ 12221558Srgrimes struct grouplist *tgrp; 12231558Srgrimes 122437663Scharnier syslog(LOG_ERR, "bad exports list line %s", line); 12251558Srgrimes if (ep && (ep->ex_flag & EX_LINKED) == 0) 12261558Srgrimes free_exp(ep); 12271558Srgrimes while (grp) { 12281558Srgrimes tgrp = grp; 12291558Srgrimes grp = grp->gr_next; 12301558Srgrimes free_grp(tgrp); 12311558Srgrimes } 12321558Srgrimes} 12331558Srgrimes 12341558Srgrimes/* 12351558Srgrimes * Search the export list for a matching fs. 12361558Srgrimes */ 12371558Srgrimesstruct exportlist * 12381558Srgrimesex_search(fsid) 12391558Srgrimes fsid_t *fsid; 12401558Srgrimes{ 12411558Srgrimes struct exportlist *ep; 12421558Srgrimes 12431558Srgrimes ep = exphead; 12441558Srgrimes while (ep) { 12451558Srgrimes if (ep->ex_fs.val[0] == fsid->val[0] && 12461558Srgrimes ep->ex_fs.val[1] == fsid->val[1]) 12471558Srgrimes return (ep); 12481558Srgrimes ep = ep->ex_next; 12491558Srgrimes } 12501558Srgrimes return (ep); 12511558Srgrimes} 12521558Srgrimes 12531558Srgrimes/* 12541558Srgrimes * Add a directory path to the list. 12551558Srgrimes */ 12561558Srgrimeschar * 12571558Srgrimesadd_expdir(dpp, cp, len) 12581558Srgrimes struct dirlist **dpp; 12591558Srgrimes char *cp; 12601558Srgrimes int len; 12611558Srgrimes{ 12621558Srgrimes struct dirlist *dp; 12631558Srgrimes 12641558Srgrimes dp = (struct dirlist *)malloc(sizeof (struct dirlist) + len); 126537663Scharnier if (dp == (struct dirlist *)NULL) 126637663Scharnier out_of_mem(); 12671558Srgrimes dp->dp_left = *dpp; 12681558Srgrimes dp->dp_right = (struct dirlist *)NULL; 12691558Srgrimes dp->dp_flag = 0; 12701558Srgrimes dp->dp_hosts = (struct hostlist *)NULL; 12711558Srgrimes strcpy(dp->dp_dirp, cp); 12721558Srgrimes *dpp = dp; 12731558Srgrimes return (dp->dp_dirp); 12741558Srgrimes} 12751558Srgrimes 12761558Srgrimes/* 12771558Srgrimes * Hang the dir list element off the dirpath binary tree as required 12781558Srgrimes * and update the entry for host. 12791558Srgrimes */ 12801558Srgrimesvoid 12819336Sdfrhang_dirp(dp, grp, ep, flags) 12821558Srgrimes struct dirlist *dp; 12831558Srgrimes struct grouplist *grp; 12841558Srgrimes struct exportlist *ep; 12859336Sdfr int flags; 12861558Srgrimes{ 12871558Srgrimes struct hostlist *hp; 12881558Srgrimes struct dirlist *dp2; 12891558Srgrimes 12909336Sdfr if (flags & OP_ALLDIRS) { 12911558Srgrimes if (ep->ex_defdir) 12921558Srgrimes free((caddr_t)dp); 12931558Srgrimes else 12941558Srgrimes ep->ex_defdir = dp; 12959336Sdfr if (grp == (struct grouplist *)NULL) { 12961558Srgrimes ep->ex_defdir->dp_flag |= DP_DEFSET; 12979336Sdfr if (flags & OP_KERB) 12989336Sdfr ep->ex_defdir->dp_flag |= DP_KERB; 12999336Sdfr } else while (grp) { 13001558Srgrimes hp = get_ht(); 13019336Sdfr if (flags & OP_KERB) 13029336Sdfr hp->ht_flag |= DP_KERB; 13031558Srgrimes hp->ht_grp = grp; 13041558Srgrimes hp->ht_next = ep->ex_defdir->dp_hosts; 13051558Srgrimes ep->ex_defdir->dp_hosts = hp; 13061558Srgrimes grp = grp->gr_next; 13071558Srgrimes } 13081558Srgrimes } else { 13091558Srgrimes 13101558Srgrimes /* 131137663Scharnier * Loop through the directories adding them to the tree. 13121558Srgrimes */ 13131558Srgrimes while (dp) { 13141558Srgrimes dp2 = dp->dp_left; 13159336Sdfr add_dlist(&ep->ex_dirl, dp, grp, flags); 13161558Srgrimes dp = dp2; 13171558Srgrimes } 13181558Srgrimes } 13191558Srgrimes} 13201558Srgrimes 13211558Srgrimes/* 13221558Srgrimes * Traverse the binary tree either updating a node that is already there 13231558Srgrimes * for the new directory or adding the new node. 13241558Srgrimes */ 13251558Srgrimesvoid 13269336Sdfradd_dlist(dpp, newdp, grp, flags) 13271558Srgrimes struct dirlist **dpp; 13281558Srgrimes struct dirlist *newdp; 13291558Srgrimes struct grouplist *grp; 13309336Sdfr int flags; 13311558Srgrimes{ 13321558Srgrimes struct dirlist *dp; 13331558Srgrimes struct hostlist *hp; 13341558Srgrimes int cmp; 13351558Srgrimes 13361558Srgrimes dp = *dpp; 13371558Srgrimes if (dp) { 13381558Srgrimes cmp = strcmp(dp->dp_dirp, newdp->dp_dirp); 13391558Srgrimes if (cmp > 0) { 13409336Sdfr add_dlist(&dp->dp_left, newdp, grp, flags); 13411558Srgrimes return; 13421558Srgrimes } else if (cmp < 0) { 13439336Sdfr add_dlist(&dp->dp_right, newdp, grp, flags); 13441558Srgrimes return; 13451558Srgrimes } else 13461558Srgrimes free((caddr_t)newdp); 13471558Srgrimes } else { 13481558Srgrimes dp = newdp; 13491558Srgrimes dp->dp_left = (struct dirlist *)NULL; 13501558Srgrimes *dpp = dp; 13511558Srgrimes } 13521558Srgrimes if (grp) { 13531558Srgrimes 13541558Srgrimes /* 13551558Srgrimes * Hang all of the host(s) off of the directory point. 13561558Srgrimes */ 13571558Srgrimes do { 13581558Srgrimes hp = get_ht(); 13599336Sdfr if (flags & OP_KERB) 13609336Sdfr hp->ht_flag |= DP_KERB; 13611558Srgrimes hp->ht_grp = grp; 13621558Srgrimes hp->ht_next = dp->dp_hosts; 13631558Srgrimes dp->dp_hosts = hp; 13641558Srgrimes grp = grp->gr_next; 13651558Srgrimes } while (grp); 13669336Sdfr } else { 13671558Srgrimes dp->dp_flag |= DP_DEFSET; 13689336Sdfr if (flags & OP_KERB) 13699336Sdfr dp->dp_flag |= DP_KERB; 13709336Sdfr } 13711558Srgrimes} 13721558Srgrimes 13731558Srgrimes/* 13741558Srgrimes * Search for a dirpath on the export point. 13751558Srgrimes */ 137674462Salfredvoid * 137774462Salfredtest() 137874462Salfred{ 137974462Salfred} 138074462Salfred 138174462Salfred/* 138274462Salfred * Search for a dirpath on the export point. 138374462Salfred */ 13841558Srgrimesstruct dirlist * 138574462Salfreddirp_search(dp, dirp) 13861558Srgrimes struct dirlist *dp; 138774462Salfred char *dirp; 13881558Srgrimes{ 13891558Srgrimes int cmp; 13901558Srgrimes 13911558Srgrimes if (dp) { 139274462Salfred cmp = strcmp(dp->dp_dirp, dirp); 13931558Srgrimes if (cmp > 0) 139474462Salfred return (dirp_search(dp->dp_left, dirp)); 13951558Srgrimes else if (cmp < 0) 139674462Salfred return (dirp_search(dp->dp_right, dirp)); 13971558Srgrimes else 13981558Srgrimes return (dp); 13991558Srgrimes } 14001558Srgrimes return (dp); 14011558Srgrimes} 14021558Srgrimes 14031558Srgrimes/* 140474462Salfred * Some helper functions for netmasks. They all assume masks in network 140574462Salfred * order (big endian). 140674462Salfred */ 140774462Salfredstatic int 140874462Salfredbitcmp(void *dst, void *src, int bitlen) 140974462Salfred{ 141074462Salfred int i; 141174462Salfred u_int8_t *p1 = dst, *p2 = src; 141274462Salfred u_int8_t bitmask; 141374462Salfred int bytelen, bitsleft; 141474462Salfred 141574462Salfred bytelen = bitlen / 8; 141674462Salfred bitsleft = bitlen % 8; 141774462Salfred 141874462Salfred if (debug) { 141974462Salfred printf("comparing:\n"); 142074462Salfred for (i = 0; i < (bitsleft ? bytelen + 1 : bytelen); i++) 142174462Salfred printf("%02x", p1[i]); 142274462Salfred printf("\n"); 142374462Salfred for (i = 0; i < (bitsleft ? bytelen + 1 : bytelen); i++) 142474462Salfred printf("%02x", p2[i]); 142574462Salfred printf("\n"); 142674462Salfred } 142774462Salfred 142874462Salfred for (i = 0; i < bytelen; i++) { 142974462Salfred if (*p1 != *p2) 143074462Salfred return 1; 143174462Salfred p1++; 143274462Salfred p2++; 143374462Salfred } 143474462Salfred 143574462Salfred for (i = 0; i < bitsleft; i++) { 143674462Salfred bitmask = 1 << (7 - i); 143774462Salfred if ((*p1 & bitmask) != (*p2 & bitmask)) 143874462Salfred return 1; 143974462Salfred } 144074462Salfred 144174462Salfred return 0; 144274462Salfred} 144374462Salfred 144474462Salfred/* 14451558Srgrimes * Scan for a host match in a directory tree. 14461558Srgrimes */ 14471558Srgrimesint 14489336Sdfrchk_host(dp, saddr, defsetp, hostsetp) 14491558Srgrimes struct dirlist *dp; 145074462Salfred struct sockaddr *saddr; 14511558Srgrimes int *defsetp; 14529336Sdfr int *hostsetp; 14531558Srgrimes{ 14541558Srgrimes struct hostlist *hp; 14551558Srgrimes struct grouplist *grp; 145674462Salfred struct addrinfo *ai; 14571558Srgrimes 14581558Srgrimes if (dp) { 14591558Srgrimes if (dp->dp_flag & DP_DEFSET) 14609336Sdfr *defsetp = dp->dp_flag; 14611558Srgrimes hp = dp->dp_hosts; 14621558Srgrimes while (hp) { 14631558Srgrimes grp = hp->ht_grp; 14641558Srgrimes switch (grp->gr_type) { 14651558Srgrimes case GT_HOST: 146674462Salfred ai = grp->gr_ptr.gt_addrinfo; 146774462Salfred for (; ai; ai = ai->ai_next) { 146874462Salfred if (!sacmp(ai->ai_addr, saddr)) { 146974462Salfred *hostsetp = 147074462Salfred (hp->ht_flag | DP_HOSTSET); 147174462Salfred return (1); 147274462Salfred } 14739336Sdfr } 14741558Srgrimes break; 14751558Srgrimes case GT_NET: 147674462Salfred if (!netpartcmp(saddr, 147774462Salfred (struct sockaddr *) &grp->gr_ptr.gt_net.nt_net, 147874462Salfred grp->gr_ptr.gt_net.nt_mask)) { 147974462Salfred *hostsetp = (hp->ht_flag | DP_HOSTSET); 148074462Salfred return (1); 148174462Salfred } 14821558Srgrimes break; 14831558Srgrimes }; 14841558Srgrimes hp = hp->ht_next; 14851558Srgrimes } 14861558Srgrimes } 14871558Srgrimes return (0); 14881558Srgrimes} 14891558Srgrimes 14901558Srgrimes/* 14911558Srgrimes * Scan tree for a host that matches the address. 14921558Srgrimes */ 14931558Srgrimesint 14941558Srgrimesscan_tree(dp, saddr) 14951558Srgrimes struct dirlist *dp; 149674462Salfred struct sockaddr *saddr; 14971558Srgrimes{ 14989336Sdfr int defset, hostset; 14991558Srgrimes 15001558Srgrimes if (dp) { 15011558Srgrimes if (scan_tree(dp->dp_left, saddr)) 15021558Srgrimes return (1); 15039336Sdfr if (chk_host(dp, saddr, &defset, &hostset)) 15041558Srgrimes return (1); 15051558Srgrimes if (scan_tree(dp->dp_right, saddr)) 15061558Srgrimes return (1); 15071558Srgrimes } 15081558Srgrimes return (0); 15091558Srgrimes} 15101558Srgrimes 15111558Srgrimes/* 15121558Srgrimes * Traverse the dirlist tree and free it up. 15131558Srgrimes */ 15141558Srgrimesvoid 15151558Srgrimesfree_dir(dp) 15161558Srgrimes struct dirlist *dp; 15171558Srgrimes{ 15181558Srgrimes 15191558Srgrimes if (dp) { 15201558Srgrimes free_dir(dp->dp_left); 15211558Srgrimes free_dir(dp->dp_right); 15221558Srgrimes free_host(dp->dp_hosts); 15231558Srgrimes free((caddr_t)dp); 15241558Srgrimes } 15251558Srgrimes} 15261558Srgrimes 15271558Srgrimes/* 15281558Srgrimes * Parse the option string and update fields. 15291558Srgrimes * Option arguments may either be -<option>=<value> or 15301558Srgrimes * -<option> <value> 15311558Srgrimes */ 15321558Srgrimesint 15331558Srgrimesdo_opt(cpp, endcpp, ep, grp, has_hostp, exflagsp, cr) 15341558Srgrimes char **cpp, **endcpp; 15351558Srgrimes struct exportlist *ep; 15361558Srgrimes struct grouplist *grp; 15371558Srgrimes int *has_hostp; 15381558Srgrimes int *exflagsp; 153972650Sgreen struct xucred *cr; 15401558Srgrimes{ 15411558Srgrimes char *cpoptarg, *cpoptend; 15421558Srgrimes char *cp, *endcp, *cpopt, savedc, savedc2; 15431558Srgrimes int allflag, usedarg; 15441558Srgrimes 154551968Salfred savedc2 = '\0'; 15461558Srgrimes cpopt = *cpp; 15471558Srgrimes cpopt++; 15481558Srgrimes cp = *endcpp; 15491558Srgrimes savedc = *cp; 15501558Srgrimes *cp = '\0'; 15511558Srgrimes while (cpopt && *cpopt) { 15521558Srgrimes allflag = 1; 15531558Srgrimes usedarg = -2; 155437663Scharnier if ((cpoptend = strchr(cpopt, ','))) { 15551558Srgrimes *cpoptend++ = '\0'; 155637663Scharnier if ((cpoptarg = strchr(cpopt, '='))) 15571558Srgrimes *cpoptarg++ = '\0'; 15581558Srgrimes } else { 155937663Scharnier if ((cpoptarg = strchr(cpopt, '='))) 15601558Srgrimes *cpoptarg++ = '\0'; 15611558Srgrimes else { 15621558Srgrimes *cp = savedc; 15631558Srgrimes nextfield(&cp, &endcp); 15641558Srgrimes **endcpp = '\0'; 15651558Srgrimes if (endcp > cp && *cp != '-') { 15661558Srgrimes cpoptarg = cp; 15671558Srgrimes savedc2 = *endcp; 15681558Srgrimes *endcp = '\0'; 15691558Srgrimes usedarg = 0; 15701558Srgrimes } 15711558Srgrimes } 15721558Srgrimes } 15731558Srgrimes if (!strcmp(cpopt, "ro") || !strcmp(cpopt, "o")) { 15741558Srgrimes *exflagsp |= MNT_EXRDONLY; 15751558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "maproot") || 15761558Srgrimes !(allflag = strcmp(cpopt, "mapall")) || 15771558Srgrimes !strcmp(cpopt, "root") || !strcmp(cpopt, "r"))) { 15781558Srgrimes usedarg++; 15791558Srgrimes parsecred(cpoptarg, cr); 15801558Srgrimes if (allflag == 0) { 15811558Srgrimes *exflagsp |= MNT_EXPORTANON; 15821558Srgrimes opt_flags |= OP_MAPALL; 15831558Srgrimes } else 15841558Srgrimes opt_flags |= OP_MAPROOT; 15851558Srgrimes } else if (!strcmp(cpopt, "kerb") || !strcmp(cpopt, "k")) { 15861558Srgrimes *exflagsp |= MNT_EXKERB; 15871558Srgrimes opt_flags |= OP_KERB; 15881558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "mask") || 15891558Srgrimes !strcmp(cpopt, "m"))) { 15901558Srgrimes if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 1)) { 159137663Scharnier syslog(LOG_ERR, "bad mask: %s", cpoptarg); 15921558Srgrimes return (1); 15931558Srgrimes } 15941558Srgrimes usedarg++; 15951558Srgrimes opt_flags |= OP_MASK; 15961558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "network") || 15971558Srgrimes !strcmp(cpopt, "n"))) { 159874462Salfred if (strchr(cpoptarg, '/') != NULL) { 159974462Salfred if (debug) 160074462Salfred fprintf(stderr, "setting OP_MASKLEN\n"); 160174462Salfred opt_flags |= OP_MASKLEN; 160274462Salfred } 16031558Srgrimes if (grp->gr_type != GT_NULL) { 160437663Scharnier syslog(LOG_ERR, "network/host conflict"); 16051558Srgrimes return (1); 16061558Srgrimes } else if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 0)) { 160737663Scharnier syslog(LOG_ERR, "bad net: %s", cpoptarg); 16081558Srgrimes return (1); 16091558Srgrimes } 16101558Srgrimes grp->gr_type = GT_NET; 16111558Srgrimes *has_hostp = 1; 16121558Srgrimes usedarg++; 16131558Srgrimes opt_flags |= OP_NET; 16141558Srgrimes } else if (!strcmp(cpopt, "alldirs")) { 16151558Srgrimes opt_flags |= OP_ALLDIRS; 161627447Sdfr } else if (!strcmp(cpopt, "public")) { 161727447Sdfr *exflagsp |= MNT_EXPUBLIC; 161827447Sdfr } else if (!strcmp(cpopt, "webnfs")) { 161927447Sdfr *exflagsp |= (MNT_EXPUBLIC|MNT_EXRDONLY|MNT_EXPORTANON); 162027447Sdfr opt_flags |= OP_MAPALL; 162127447Sdfr } else if (cpoptarg && !strcmp(cpopt, "index")) { 162227447Sdfr ep->ex_indexfile = strdup(cpoptarg); 16231558Srgrimes } else { 162437663Scharnier syslog(LOG_ERR, "bad opt %s", cpopt); 16251558Srgrimes return (1); 16261558Srgrimes } 16271558Srgrimes if (usedarg >= 0) { 16281558Srgrimes *endcp = savedc2; 16291558Srgrimes **endcpp = savedc; 16301558Srgrimes if (usedarg > 0) { 16311558Srgrimes *cpp = cp; 16321558Srgrimes *endcpp = endcp; 16331558Srgrimes } 16341558Srgrimes return (0); 16351558Srgrimes } 16361558Srgrimes cpopt = cpoptend; 16371558Srgrimes } 16381558Srgrimes **endcpp = savedc; 16391558Srgrimes return (0); 16401558Srgrimes} 16411558Srgrimes 16421558Srgrimes/* 16431558Srgrimes * Translate a character string to the corresponding list of network 16441558Srgrimes * addresses for a hostname. 16451558Srgrimes */ 16461558Srgrimesint 16477401Swpaulget_host(cp, grp, tgrp) 16481558Srgrimes char *cp; 16491558Srgrimes struct grouplist *grp; 16507401Swpaul struct grouplist *tgrp; 16511558Srgrimes{ 16527401Swpaul struct grouplist *checkgrp; 165374462Salfred struct addrinfo *ai, hints; 165474462Salfred int ecode; 165574462Salfred char host[NI_MAXHOST]; 16561558Srgrimes int i; 16571558Srgrimes char *aptr[2]; 16581558Srgrimes 165974462Salfred if (grp->gr_type != GT_NULL) { 166074462Salfred syslog(LOG_ERR, "Bad netgroup type for ip host %s", cp); 16611558Srgrimes return (1); 16621558Srgrimes } 166374462Salfred memset(&hints, 0, sizeof hints); 166474462Salfred hints.ai_flags = AI_CANONNAME; 166574462Salfred hints.ai_protocol = IPPROTO_UDP; 166674462Salfred ecode = getaddrinfo(cp, NULL, &hints, &ai); 166774462Salfred if (ecode != 0) { 166874462Salfred syslog(LOG_ERR,"can't get address info for " 166974462Salfred "host %s", cp); 167074462Salfred return 1; 167174462Salfred } 16721558Srgrimes grp->gr_type = GT_HOST; 167374462Salfred grp->gr_ptr.gt_addrinfo = ai; 167474462Salfred while (ai != NULL) { 167574462Salfred if (ai->ai_canonname == NULL) { 167674462Salfred if (getnameinfo(ai->ai_addr, ai->ai_addrlen, host, 167774462Salfred sizeof host, NULL, 0, ninumeric) != 0) 167874462Salfred strlcpy(host, "?", sizeof(host)); 167974462Salfred ai->ai_canonname = strdup(host); 168074462Salfred ai->ai_flags |= AI_CANONNAME; 168174462Salfred } else 168274462Salfred ai->ai_flags &= ~AI_CANONNAME; 168374462Salfred if (debug) 168474462Salfred (void)fprintf(stderr, "got host %s\n", ai->ai_canonname); 168574462Salfred ai = ai->ai_next; 16861558Srgrimes } 16871558Srgrimes return (0); 16881558Srgrimes} 16891558Srgrimes 16901558Srgrimes/* 16911558Srgrimes * Free up an exports list component 16921558Srgrimes */ 16931558Srgrimesvoid 16941558Srgrimesfree_exp(ep) 16951558Srgrimes struct exportlist *ep; 16961558Srgrimes{ 16971558Srgrimes 16981558Srgrimes if (ep->ex_defdir) { 16991558Srgrimes free_host(ep->ex_defdir->dp_hosts); 17001558Srgrimes free((caddr_t)ep->ex_defdir); 17011558Srgrimes } 17021558Srgrimes if (ep->ex_fsdir) 17031558Srgrimes free(ep->ex_fsdir); 170427447Sdfr if (ep->ex_indexfile) 170527447Sdfr free(ep->ex_indexfile); 17061558Srgrimes free_dir(ep->ex_dirl); 17071558Srgrimes free((caddr_t)ep); 17081558Srgrimes} 17091558Srgrimes 17101558Srgrimes/* 17111558Srgrimes * Free hosts. 17121558Srgrimes */ 17131558Srgrimesvoid 17141558Srgrimesfree_host(hp) 17151558Srgrimes struct hostlist *hp; 17161558Srgrimes{ 17171558Srgrimes struct hostlist *hp2; 17181558Srgrimes 17191558Srgrimes while (hp) { 17201558Srgrimes hp2 = hp; 17211558Srgrimes hp = hp->ht_next; 17221558Srgrimes free((caddr_t)hp2); 17231558Srgrimes } 17241558Srgrimes} 17251558Srgrimes 17261558Srgrimesstruct hostlist * 17271558Srgrimesget_ht() 17281558Srgrimes{ 17291558Srgrimes struct hostlist *hp; 17301558Srgrimes 17311558Srgrimes hp = (struct hostlist *)malloc(sizeof (struct hostlist)); 17321558Srgrimes if (hp == (struct hostlist *)NULL) 17331558Srgrimes out_of_mem(); 17341558Srgrimes hp->ht_next = (struct hostlist *)NULL; 17359336Sdfr hp->ht_flag = 0; 17361558Srgrimes return (hp); 17371558Srgrimes} 17381558Srgrimes 17391558Srgrimes/* 17401558Srgrimes * Out of memory, fatal 17411558Srgrimes */ 17421558Srgrimesvoid 17431558Srgrimesout_of_mem() 17441558Srgrimes{ 17451558Srgrimes 174637663Scharnier syslog(LOG_ERR, "out of memory"); 17471558Srgrimes exit(2); 17481558Srgrimes} 17491558Srgrimes 17501558Srgrimes/* 17511558Srgrimes * Do the mount syscall with the update flag to push the export info into 17521558Srgrimes * the kernel. 17531558Srgrimes */ 17541558Srgrimesint 17551558Srgrimesdo_mount(ep, grp, exflags, anoncrp, dirp, dirplen, fsb) 17561558Srgrimes struct exportlist *ep; 17571558Srgrimes struct grouplist *grp; 17581558Srgrimes int exflags; 175972650Sgreen struct xucred *anoncrp; 17601558Srgrimes char *dirp; 17611558Srgrimes int dirplen; 17621558Srgrimes struct statfs *fsb; 17631558Srgrimes{ 176474462Salfred struct sockaddr *addrp; 176574462Salfred struct sockaddr_storage ss; 176674462Salfred struct addrinfo *ai; 176774462Salfred int addrlen; 176874462Salfred char *cp = NULL; 17691558Srgrimes int done; 17701558Srgrimes char savedc = '\0'; 17711558Srgrimes union { 17721558Srgrimes struct ufs_args ua; 17731558Srgrimes struct iso_args ia; 17741558Srgrimes struct mfs_args ma; 17759336Sdfr#ifdef __NetBSD__ 17769336Sdfr struct msdosfs_args da; 177774462Salfred struct adosfs_args aa; 17789336Sdfr#endif 177954093Ssemenu struct ntfs_args na; 17801558Srgrimes } args; 17811558Srgrimes 17821558Srgrimes args.ua.fspec = 0; 17831558Srgrimes args.ua.export.ex_flags = exflags; 17841558Srgrimes args.ua.export.ex_anon = *anoncrp; 178527447Sdfr args.ua.export.ex_indexfile = ep->ex_indexfile; 178674462Salfred if (grp->gr_type == GT_HOST) { 178774462Salfred ai = grp->gr_ptr.gt_addrinfo; 178874462Salfred addrp = ai->ai_addr; 178974462Salfred addrlen = ai->ai_addrlen; 179074462Salfred } else 179174462Salfred addrp = NULL; 17921558Srgrimes done = FALSE; 17931558Srgrimes while (!done) { 17941558Srgrimes switch (grp->gr_type) { 17951558Srgrimes case GT_HOST: 179674462Salfred if (addrp != NULL && addrp->sa_family == AF_INET6 && 179774462Salfred have_v6 == 0) 179874462Salfred goto skip; 179974462Salfred args.ua.export.ex_addr = addrp; 180074462Salfred args.ua.export.ex_addrlen = addrlen; 18011558Srgrimes args.ua.export.ex_masklen = 0; 18021558Srgrimes break; 18031558Srgrimes case GT_NET: 180474462Salfred args.ua.export.ex_addr = (struct sockaddr *) 180574462Salfred &grp->gr_ptr.gt_net.nt_net; 180674462Salfred if (args.ua.export.ex_addr->sa_family == AF_INET6 && 180774462Salfred have_v6 == 0) 180874462Salfred goto skip; 180974462Salfred args.ua.export.ex_addrlen = 181074462Salfred args.ua.export.ex_addr->sa_len; 181174462Salfred memset(&ss, 0, sizeof ss); 181274462Salfred ss.ss_family = args.ua.export.ex_addr->sa_family; 181374462Salfred ss.ss_len = args.ua.export.ex_addr->sa_len; 181474462Salfred if (allones(&ss, grp->gr_ptr.gt_net.nt_mask) != 0) { 181574462Salfred syslog(LOG_ERR, "Bad network flag"); 181674462Salfred if (cp) 181774462Salfred *cp = savedc; 181874462Salfred return (1); 18191558Srgrimes } 182074462Salfred args.ua.export.ex_mask = (struct sockaddr *)&ss; 182174462Salfred args.ua.export.ex_masklen = ss.ss_len; 18221558Srgrimes break; 18237401Swpaul case GT_IGNORE: 18247401Swpaul return(0); 18257401Swpaul break; 18261558Srgrimes default: 182737663Scharnier syslog(LOG_ERR, "bad grouptype"); 18281558Srgrimes if (cp) 18291558Srgrimes *cp = savedc; 18301558Srgrimes return (1); 18311558Srgrimes }; 18321558Srgrimes 18331558Srgrimes /* 18341558Srgrimes * XXX: 18351558Srgrimes * Maybe I should just use the fsb->f_mntonname path instead 18361558Srgrimes * of looping back up the dirp to the mount point?? 18371558Srgrimes * Also, needs to know how to export all types of local 183823681Speter * exportable file systems and not just "ufs". 18391558Srgrimes */ 18409336Sdfr while (mount(fsb->f_fstypename, dirp, 184174462Salfred fsb->f_flags | MNT_UPDATE, (caddr_t)&args) < 0) { 18421558Srgrimes if (cp) 18431558Srgrimes *cp-- = savedc; 18441558Srgrimes else 18451558Srgrimes cp = dirp + dirplen - 1; 18461558Srgrimes if (errno == EPERM) { 18471558Srgrimes syslog(LOG_ERR, 184837663Scharnier "can't change attributes for %s", dirp); 18491558Srgrimes return (1); 18501558Srgrimes } 18511558Srgrimes if (opt_flags & OP_ALLDIRS) { 185237663Scharnier syslog(LOG_ERR, "could not remount %s: %m", 18534895Swollman dirp); 18541558Srgrimes return (1); 18551558Srgrimes } 18561558Srgrimes /* back up over the last component */ 18571558Srgrimes while (*cp == '/' && cp > dirp) 18581558Srgrimes cp--; 18591558Srgrimes while (*(cp - 1) != '/' && cp > dirp) 18601558Srgrimes cp--; 18611558Srgrimes if (cp == dirp) { 18621558Srgrimes if (debug) 186337663Scharnier warnx("mnt unsucc"); 186437663Scharnier syslog(LOG_ERR, "can't export %s", dirp); 18651558Srgrimes return (1); 18661558Srgrimes } 18671558Srgrimes savedc = *cp; 18681558Srgrimes *cp = '\0'; 18691558Srgrimes } 187074462Salfredskip: 18711558Srgrimes if (addrp) { 187274462Salfred ai = ai->ai_next; 187374462Salfred if (ai == NULL) 18741558Srgrimes done = TRUE; 187574462Salfred else { 187674462Salfred addrp = ai->ai_addr; 187774462Salfred addrlen = ai->ai_addrlen; 187874462Salfred } 18791558Srgrimes } else 18801558Srgrimes done = TRUE; 18811558Srgrimes } 18821558Srgrimes if (cp) 18831558Srgrimes *cp = savedc; 18841558Srgrimes return (0); 18851558Srgrimes} 18861558Srgrimes 18871558Srgrimes/* 18881558Srgrimes * Translate a net address. 18891558Srgrimes */ 18901558Srgrimesint 18911558Srgrimesget_net(cp, net, maskflg) 18921558Srgrimes char *cp; 18931558Srgrimes struct netmsk *net; 18941558Srgrimes int maskflg; 18951558Srgrimes{ 18961558Srgrimes struct netent *np; 189774462Salfred char *name, *p, *prefp; 189874462Salfred struct sockaddr_in sin, *sinp; 189974462Salfred struct sockaddr *sa; 190074462Salfred struct addrinfo hints, *ai = NULL; 190174462Salfred char netname[NI_MAXHOST]; 190274462Salfred long preflen; 190374462Salfred int ecode; 19041558Srgrimes 190574462Salfred if ((opt_flags & OP_MASKLEN) && !maskflg) { 190674462Salfred p = strchr(cp, '/'); 190774462Salfred *p = '\0'; 190874462Salfred prefp = p + 1; 190974462Salfred } 191074462Salfred 191174462Salfred if ((np = getnetbyname(cp)) != NULL) { 191274462Salfred sin.sin_family = AF_INET; 191374462Salfred sin.sin_len = sizeof sin; 191474462Salfred sin.sin_addr = inet_makeaddr(np->n_net, 0); 191574462Salfred sa = (struct sockaddr *)&sin; 191674462Salfred } else if (isdigit(*cp)) { 191774462Salfred memset(&hints, 0, sizeof hints); 191874462Salfred hints.ai_family = AF_UNSPEC; 191974462Salfred hints.ai_flags = AI_NUMERICHOST; 192074462Salfred if (getaddrinfo(cp, NULL, &hints, &ai) != 0) { 192174462Salfred /* 192274462Salfred * If getaddrinfo() failed, try the inet4 network 192374462Salfred * notation with less than 3 dots. 192474462Salfred */ 192574462Salfred sin.sin_family = AF_INET; 192674462Salfred sin.sin_len = sizeof sin; 192774462Salfred sin.sin_addr = inet_makeaddr(inet_network(cp),0); 192874462Salfred if (debug) 192974462Salfred fprintf(stderr, "get_net: v4 addr %x\n", 193074462Salfred sin.sin_addr.s_addr); 193174462Salfred sa = (struct sockaddr *)&sin; 193274462Salfred } else 193374462Salfred sa = ai->ai_addr; 193474462Salfred } else if (isxdigit(*cp) || *cp == ':') { 193574462Salfred memset(&hints, 0, sizeof hints); 193674462Salfred hints.ai_family = AF_UNSPEC; 193774462Salfred hints.ai_flags = AI_NUMERICHOST; 193874462Salfred if (getaddrinfo(cp, NULL, &hints, &ai) == 0) 193974462Salfred sa = ai->ai_addr; 194074462Salfred else 194174462Salfred goto fail; 19421558Srgrimes } else 194374462Salfred goto fail; 194425318Spst 194574462Salfred ecode = getnameinfo(sa, sa->sa_len, netname, sizeof netname, 194674462Salfred NULL, 0, ninumeric); 194774462Salfred if (ecode != 0) 194874462Salfred goto fail; 194974462Salfred 19501558Srgrimes if (maskflg) 195174462Salfred net->nt_mask = countones(sa); 19521558Srgrimes else { 195374462Salfred if (opt_flags & OP_MASKLEN) { 195474462Salfred preflen = strtol(prefp, NULL, 10); 195574462Salfred if (preflen == LONG_MIN && errno == ERANGE) 195674462Salfred goto fail; 195774462Salfred net->nt_mask = (int)preflen; 195874462Salfred *p = '/'; 195974462Salfred } 196074462Salfred 19611558Srgrimes if (np) 19621558Srgrimes name = np->n_name; 196374462Salfred else { 196474462Salfred if (getnameinfo(sa, sa->sa_len, netname, sizeof netname, 196574462Salfred NULL, 0, ninumeric) != 0) 196674462Salfred strlcpy(netname, "?", sizeof(netname)); 196774462Salfred name = netname; 196874462Salfred } 196974462Salfred net->nt_name = strdup(name); 197074462Salfred memcpy(&net->nt_net, sa, sa->sa_len); 197174462Salfred } 197274462Salfred 197374462Salfred if (!maskflg && sa->sa_family == AF_INET && 197474462Salfred !(opt_flags & (OP_MASK|OP_MASKLEN))) { 197574462Salfred sinp = (struct sockaddr_in *)sa; 197674462Salfred if (IN_CLASSA(sinp->sin_addr.s_addr)) 197774462Salfred net->nt_mask = 8; 197874462Salfred else if (IN_CLASSB(sinp->sin_addr.s_addr)) 197974462Salfred net->nt_mask = 16; 198074462Salfred else if (IN_CLASSC(sinp->sin_addr.s_addr)) 198174462Salfred net->nt_mask = 24; 198274462Salfred else if (IN_CLASSD(sinp->sin_addr.s_addr)) 198374462Salfred net->nt_mask = 28; 19841558Srgrimes else 198574462Salfred net->nt_mask = 32; /* XXX */ 19861558Srgrimes } 198774462Salfred 198874462Salfred if (ai) 198974462Salfred freeaddrinfo(ai); 199074462Salfred return 0; 199174462Salfred 199274462Salfredfail: 199374462Salfred if (ai) 199474462Salfred freeaddrinfo(ai); 199574462Salfred return 1; 19961558Srgrimes} 19971558Srgrimes 19981558Srgrimes/* 19991558Srgrimes * Parse out the next white space separated field 20001558Srgrimes */ 20011558Srgrimesvoid 20021558Srgrimesnextfield(cp, endcp) 20031558Srgrimes char **cp; 20041558Srgrimes char **endcp; 20051558Srgrimes{ 20061558Srgrimes char *p; 20071558Srgrimes 20081558Srgrimes p = *cp; 20091558Srgrimes while (*p == ' ' || *p == '\t') 20101558Srgrimes p++; 20111558Srgrimes if (*p == '\n' || *p == '\0') 20121558Srgrimes *cp = *endcp = p; 20131558Srgrimes else { 20141558Srgrimes *cp = p++; 20151558Srgrimes while (*p != ' ' && *p != '\t' && *p != '\n' && *p != '\0') 20161558Srgrimes p++; 20171558Srgrimes *endcp = p; 20181558Srgrimes } 20191558Srgrimes} 20201558Srgrimes 20211558Srgrimes/* 20221558Srgrimes * Get an exports file line. Skip over blank lines and handle line 20231558Srgrimes * continuations. 20241558Srgrimes */ 20251558Srgrimesint 20261558Srgrimesget_line() 20271558Srgrimes{ 20281558Srgrimes char *p, *cp; 20291558Srgrimes int len; 20301558Srgrimes int totlen, cont_line; 20311558Srgrimes 20321558Srgrimes /* 20331558Srgrimes * Loop around ignoring blank lines and getting all continuation lines. 20341558Srgrimes */ 20351558Srgrimes p = line; 20361558Srgrimes totlen = 0; 20371558Srgrimes do { 20381558Srgrimes if (fgets(p, LINESIZ - totlen, exp_file) == NULL) 20391558Srgrimes return (0); 20401558Srgrimes len = strlen(p); 20411558Srgrimes cp = p + len - 1; 20421558Srgrimes cont_line = 0; 20431558Srgrimes while (cp >= p && 20441558Srgrimes (*cp == ' ' || *cp == '\t' || *cp == '\n' || *cp == '\\')) { 20451558Srgrimes if (*cp == '\\') 20461558Srgrimes cont_line = 1; 20471558Srgrimes cp--; 20481558Srgrimes len--; 20491558Srgrimes } 20501558Srgrimes *++cp = '\0'; 20511558Srgrimes if (len > 0) { 20521558Srgrimes totlen += len; 20531558Srgrimes if (totlen >= LINESIZ) { 205437663Scharnier syslog(LOG_ERR, "exports line too long"); 20551558Srgrimes exit(2); 20561558Srgrimes } 20571558Srgrimes p = cp; 20581558Srgrimes } 20591558Srgrimes } while (totlen == 0 || cont_line); 20601558Srgrimes return (1); 20611558Srgrimes} 20621558Srgrimes 20631558Srgrimes/* 20641558Srgrimes * Parse a description of a credential. 20651558Srgrimes */ 20661558Srgrimesvoid 20671558Srgrimesparsecred(namelist, cr) 20681558Srgrimes char *namelist; 206972650Sgreen struct xucred *cr; 20701558Srgrimes{ 20711558Srgrimes char *name; 20721558Srgrimes int cnt; 20731558Srgrimes char *names; 20741558Srgrimes struct passwd *pw; 20751558Srgrimes struct group *gr; 20761558Srgrimes int ngroups, groups[NGROUPS + 1]; 20771558Srgrimes 20781558Srgrimes /* 207937663Scharnier * Set up the unprivileged user. 20801558Srgrimes */ 20811558Srgrimes cr->cr_uid = -2; 20821558Srgrimes cr->cr_groups[0] = -2; 20831558Srgrimes cr->cr_ngroups = 1; 20841558Srgrimes /* 20851558Srgrimes * Get the user's password table entry. 20861558Srgrimes */ 20871558Srgrimes names = strsep(&namelist, " \t\n"); 20881558Srgrimes name = strsep(&names, ":"); 20891558Srgrimes if (isdigit(*name) || *name == '-') 20901558Srgrimes pw = getpwuid(atoi(name)); 20911558Srgrimes else 20921558Srgrimes pw = getpwnam(name); 20931558Srgrimes /* 20941558Srgrimes * Credentials specified as those of a user. 20951558Srgrimes */ 20961558Srgrimes if (names == NULL) { 20971558Srgrimes if (pw == NULL) { 209837663Scharnier syslog(LOG_ERR, "unknown user: %s", name); 20991558Srgrimes return; 21001558Srgrimes } 21011558Srgrimes cr->cr_uid = pw->pw_uid; 21021558Srgrimes ngroups = NGROUPS + 1; 21031558Srgrimes if (getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups)) 210437663Scharnier syslog(LOG_ERR, "too many groups"); 21051558Srgrimes /* 21061558Srgrimes * Convert from int's to gid_t's and compress out duplicate 21071558Srgrimes */ 21081558Srgrimes cr->cr_ngroups = ngroups - 1; 21091558Srgrimes cr->cr_groups[0] = groups[0]; 21101558Srgrimes for (cnt = 2; cnt < ngroups; cnt++) 21111558Srgrimes cr->cr_groups[cnt - 1] = groups[cnt]; 21121558Srgrimes return; 21131558Srgrimes } 21141558Srgrimes /* 21151558Srgrimes * Explicit credential specified as a colon separated list: 21161558Srgrimes * uid:gid:gid:... 21171558Srgrimes */ 21181558Srgrimes if (pw != NULL) 21191558Srgrimes cr->cr_uid = pw->pw_uid; 21201558Srgrimes else if (isdigit(*name) || *name == '-') 21211558Srgrimes cr->cr_uid = atoi(name); 21221558Srgrimes else { 212337663Scharnier syslog(LOG_ERR, "unknown user: %s", name); 21241558Srgrimes return; 21251558Srgrimes } 21261558Srgrimes cr->cr_ngroups = 0; 21271558Srgrimes while (names != NULL && *names != '\0' && cr->cr_ngroups < NGROUPS) { 21281558Srgrimes name = strsep(&names, ":"); 21291558Srgrimes if (isdigit(*name) || *name == '-') { 21301558Srgrimes cr->cr_groups[cr->cr_ngroups++] = atoi(name); 21311558Srgrimes } else { 21321558Srgrimes if ((gr = getgrnam(name)) == NULL) { 213337663Scharnier syslog(LOG_ERR, "unknown group: %s", name); 21341558Srgrimes continue; 21351558Srgrimes } 21361558Srgrimes cr->cr_groups[cr->cr_ngroups++] = gr->gr_gid; 21371558Srgrimes } 21381558Srgrimes } 21391558Srgrimes if (names != NULL && *names != '\0' && cr->cr_ngroups == NGROUPS) 214037663Scharnier syslog(LOG_ERR, "too many groups"); 21411558Srgrimes} 21421558Srgrimes 21431558Srgrimes#define STRSIZ (RPCMNT_NAMELEN+RPCMNT_PATHLEN+50) 21441558Srgrimes/* 21451558Srgrimes * Routines that maintain the remote mounttab 21461558Srgrimes */ 21471558Srgrimesvoid 21481558Srgrimesget_mountlist() 21491558Srgrimes{ 21501558Srgrimes struct mountlist *mlp, **mlpp; 215123681Speter char *host, *dirp, *cp; 21521558Srgrimes char str[STRSIZ]; 21531558Srgrimes FILE *mlfile; 21541558Srgrimes 21551558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "r")) == NULL) { 215653117Sbillf if (errno == ENOENT) 215753117Sbillf return; 215853117Sbillf else { 215953117Sbillf syslog(LOG_ERR, "can't open %s", _PATH_RMOUNTLIST); 216053117Sbillf return; 216153117Sbillf } 21621558Srgrimes } 21631558Srgrimes mlpp = &mlhead; 21641558Srgrimes while (fgets(str, STRSIZ, mlfile) != NULL) { 216523681Speter cp = str; 216623681Speter host = strsep(&cp, " \t\n"); 216723681Speter dirp = strsep(&cp, " \t\n"); 216823681Speter if (host == NULL || dirp == NULL) 21691558Srgrimes continue; 21701558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 217137663Scharnier if (mlp == (struct mountlist *)NULL) 217237663Scharnier out_of_mem(); 217323681Speter strncpy(mlp->ml_host, host, RPCMNT_NAMELEN); 217423681Speter mlp->ml_host[RPCMNT_NAMELEN] = '\0'; 217523681Speter strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN); 217623681Speter mlp->ml_dirp[RPCMNT_PATHLEN] = '\0'; 21771558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 21781558Srgrimes *mlpp = mlp; 21791558Srgrimes mlpp = &mlp->ml_next; 21801558Srgrimes } 21811558Srgrimes fclose(mlfile); 21821558Srgrimes} 21831558Srgrimes 218474462Salfredint 218574462Salfreddel_mlist(hostp, dirp, saddr) 21861558Srgrimes char *hostp, *dirp; 218774462Salfred struct sockaddr *saddr; 21881558Srgrimes{ 21891558Srgrimes struct mountlist *mlp, **mlpp; 21901558Srgrimes struct mountlist *mlp2; 219174462Salfred u_short sport; 21921558Srgrimes FILE *mlfile; 21931558Srgrimes int fnd = 0; 219474462Salfred char host[NI_MAXHOST]; 21951558Srgrimes 219674462Salfred switch (saddr->sa_family) { 219774462Salfred case AF_INET6: 219874462Salfred sport = ntohs(((struct sockaddr_in6 *)saddr)->sin6_port); 219974462Salfred break; 220074462Salfred case AF_INET: 220174462Salfred sport = ntohs(((struct sockaddr_in *)saddr)->sin_port); 220274462Salfred break; 220374462Salfred default: 220474462Salfred return -1; 220574462Salfred } 22061558Srgrimes mlpp = &mlhead; 22071558Srgrimes mlp = mlhead; 22081558Srgrimes while (mlp) { 22091558Srgrimes if (!strcmp(mlp->ml_host, hostp) && 22101558Srgrimes (!dirp || !strcmp(mlp->ml_dirp, dirp))) { 22111558Srgrimes fnd = 1; 22121558Srgrimes mlp2 = mlp; 22131558Srgrimes *mlpp = mlp = mlp->ml_next; 22141558Srgrimes free((caddr_t)mlp2); 22151558Srgrimes } else { 22161558Srgrimes mlpp = &mlp->ml_next; 22171558Srgrimes mlp = mlp->ml_next; 22181558Srgrimes } 22191558Srgrimes } 22201558Srgrimes if (fnd) { 22211558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "w")) == NULL) { 222237663Scharnier syslog(LOG_ERR,"can't update %s", _PATH_RMOUNTLIST); 22231558Srgrimes return; 22241558Srgrimes } 22251558Srgrimes mlp = mlhead; 22261558Srgrimes while (mlp) { 22271558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 22281558Srgrimes mlp = mlp->ml_next; 22291558Srgrimes } 22301558Srgrimes fclose(mlfile); 22311558Srgrimes } 22321558Srgrimes} 22331558Srgrimes 22341558Srgrimesvoid 22351558Srgrimesadd_mlist(hostp, dirp) 22361558Srgrimes char *hostp, *dirp; 22371558Srgrimes{ 22381558Srgrimes struct mountlist *mlp, **mlpp; 22391558Srgrimes FILE *mlfile; 22401558Srgrimes 22411558Srgrimes mlpp = &mlhead; 22421558Srgrimes mlp = mlhead; 22431558Srgrimes while (mlp) { 22441558Srgrimes if (!strcmp(mlp->ml_host, hostp) && !strcmp(mlp->ml_dirp, dirp)) 22451558Srgrimes return; 22461558Srgrimes mlpp = &mlp->ml_next; 22471558Srgrimes mlp = mlp->ml_next; 22481558Srgrimes } 22491558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 225037663Scharnier if (mlp == (struct mountlist *)NULL) 225137663Scharnier out_of_mem(); 22521558Srgrimes strncpy(mlp->ml_host, hostp, RPCMNT_NAMELEN); 22531558Srgrimes mlp->ml_host[RPCMNT_NAMELEN] = '\0'; 22541558Srgrimes strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN); 22551558Srgrimes mlp->ml_dirp[RPCMNT_PATHLEN] = '\0'; 22561558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 22571558Srgrimes *mlpp = mlp; 22581558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "a")) == NULL) { 225937663Scharnier syslog(LOG_ERR, "can't update %s", _PATH_RMOUNTLIST); 22601558Srgrimes return; 22611558Srgrimes } 22621558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 22631558Srgrimes fclose(mlfile); 22641558Srgrimes} 22651558Srgrimes 22661558Srgrimes/* 22671558Srgrimes * Free up a group list. 22681558Srgrimes */ 22691558Srgrimesvoid 22701558Srgrimesfree_grp(grp) 22711558Srgrimes struct grouplist *grp; 22721558Srgrimes{ 227374462Salfred struct addrinfo *ai; 22741558Srgrimes 22751558Srgrimes if (grp->gr_type == GT_HOST) { 227674462Salfred if (grp->gr_ptr.gt_addrinfo != NULL) 227774462Salfred freeaddrinfo(grp->gr_ptr.gt_addrinfo); 22781558Srgrimes } else if (grp->gr_type == GT_NET) { 22791558Srgrimes if (grp->gr_ptr.gt_net.nt_name) 22801558Srgrimes free(grp->gr_ptr.gt_net.nt_name); 22811558Srgrimes } 22821558Srgrimes free((caddr_t)grp); 22831558Srgrimes} 22841558Srgrimes 22851558Srgrimes#ifdef DEBUG 22861558Srgrimesvoid 22871558SrgrimesSYSLOG(int pri, const char *fmt, ...) 22881558Srgrimes{ 22891558Srgrimes va_list ap; 22901558Srgrimes 22911558Srgrimes va_start(ap, fmt); 22921558Srgrimes vfprintf(stderr, fmt, ap); 22931558Srgrimes va_end(ap); 22941558Srgrimes} 22951558Srgrimes#endif /* DEBUG */ 22961558Srgrimes 22971558Srgrimes/* 22981558Srgrimes * Check options for consistency. 22991558Srgrimes */ 23001558Srgrimesint 23011558Srgrimescheck_options(dp) 23021558Srgrimes struct dirlist *dp; 23031558Srgrimes{ 23041558Srgrimes 23051558Srgrimes if (dp == (struct dirlist *)NULL) 23061558Srgrimes return (1); 23071558Srgrimes if ((opt_flags & (OP_MAPROOT | OP_MAPALL)) == (OP_MAPROOT | OP_MAPALL) || 23081558Srgrimes (opt_flags & (OP_MAPROOT | OP_KERB)) == (OP_MAPROOT | OP_KERB) || 23091558Srgrimes (opt_flags & (OP_MAPALL | OP_KERB)) == (OP_MAPALL | OP_KERB)) { 23101558Srgrimes syslog(LOG_ERR, "-mapall, -maproot and -kerb mutually exclusive"); 23111558Srgrimes return (1); 23121558Srgrimes } 23131558Srgrimes if ((opt_flags & OP_MASK) && (opt_flags & OP_NET) == 0) { 23141558Srgrimes syslog(LOG_ERR, "-mask requires -net"); 23151558Srgrimes return (1); 23161558Srgrimes } 23171558Srgrimes if ((opt_flags & OP_ALLDIRS) && dp->dp_left) { 231845927Salex syslog(LOG_ERR, "-alldirs has multiple directories"); 23191558Srgrimes return (1); 23201558Srgrimes } 23211558Srgrimes return (0); 23221558Srgrimes} 23231558Srgrimes 23241558Srgrimes/* 23251558Srgrimes * Check an absolute directory path for any symbolic links. Return true 23261558Srgrimes */ 23271558Srgrimesint 23281558Srgrimescheck_dirpath(dirp) 23291558Srgrimes char *dirp; 23301558Srgrimes{ 23311558Srgrimes char *cp; 23321558Srgrimes int ret = 1; 23331558Srgrimes struct stat sb; 23341558Srgrimes 23351558Srgrimes cp = dirp + 1; 23361558Srgrimes while (*cp && ret) { 23371558Srgrimes if (*cp == '/') { 23381558Srgrimes *cp = '\0'; 23399336Sdfr if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode)) 23401558Srgrimes ret = 0; 23411558Srgrimes *cp = '/'; 23421558Srgrimes } 23431558Srgrimes cp++; 23441558Srgrimes } 23459336Sdfr if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode)) 23461558Srgrimes ret = 0; 23471558Srgrimes return (ret); 23481558Srgrimes} 23499336Sdfr 23509336Sdfr/* 23519336Sdfr * Just translate an ascii string to an integer. 23529336Sdfr */ 23539336Sdfrint 23549336Sdfrget_num(cp) 23559336Sdfr register char *cp; 23569336Sdfr{ 23579336Sdfr register int res = 0; 23589336Sdfr 23599336Sdfr while (*cp) { 23609336Sdfr if (*cp < '0' || *cp > '9') 23619336Sdfr return (-1); 23629336Sdfr res = res * 10 + (*cp++ - '0'); 23639336Sdfr } 23649336Sdfr return (res); 23659336Sdfr} 236674462Salfred 236774462Salfredstatic int 236874462Salfrednetpartcmp(struct sockaddr *s1, struct sockaddr *s2, int bitlen) 236974462Salfred{ 237074462Salfred void *src, *dst; 237174462Salfred 237274462Salfred if (s1->sa_family != s2->sa_family) 237374462Salfred return 1; 237474462Salfred 237574462Salfred switch (s1->sa_family) { 237674462Salfred case AF_INET: 237774462Salfred src = &((struct sockaddr_in *)s1)->sin_addr; 237874462Salfred dst = &((struct sockaddr_in *)s2)->sin_addr; 237974462Salfred if (bitlen > sizeof(((struct sockaddr_in *)s1)->sin_addr) * 8) 238074462Salfred return 1; 238174462Salfred break; 238274462Salfred case AF_INET6: 238374462Salfred src = &((struct sockaddr_in6 *)s1)->sin6_addr; 238474462Salfred dst = &((struct sockaddr_in6 *)s2)->sin6_addr; 238574462Salfred if (((struct sockaddr_in6 *)s1)->sin6_scope_id != 238674462Salfred ((struct sockaddr_in6 *)s2)->sin6_scope_id) 238774462Salfred return 1; 238874462Salfred if (bitlen > sizeof(((struct sockaddr_in6 *)s1)->sin6_addr) * 8) 238974462Salfred return 1; 239074462Salfred break; 239174462Salfred default: 239274462Salfred return 1; 239374462Salfred } 239474462Salfred 239574462Salfred return bitcmp(src, dst, bitlen); 239674462Salfred} 239774462Salfred 239874462Salfredstatic int 239974462Salfredallones(struct sockaddr_storage *ssp, int bitlen) 240074462Salfred{ 240174462Salfred u_int8_t *p; 240274462Salfred int bytelen, bitsleft, i; 240374462Salfred int zerolen; 240474462Salfred 240574462Salfred switch (ssp->ss_family) { 240674462Salfred case AF_INET: 240774462Salfred p = (u_int8_t *)&((struct sockaddr_in *)ssp)->sin_addr; 240874462Salfred zerolen = sizeof (((struct sockaddr_in *)ssp)->sin_addr); 240974462Salfred break; 241074462Salfred case AF_INET6: 241174462Salfred p = (u_int8_t *)&((struct sockaddr_in6 *)ssp)->sin6_addr; 241274462Salfred zerolen = sizeof (((struct sockaddr_in6 *)ssp)->sin6_addr); 241374462Salfred break; 241474462Salfred default: 241574462Salfred return -1; 241674462Salfred } 241774462Salfred 241874462Salfred memset(p, 0, zerolen); 241974462Salfred 242074462Salfred bytelen = bitlen / 8; 242174462Salfred bitsleft = bitlen % 8; 242274462Salfred 242374462Salfred if (bytelen > zerolen) 242474462Salfred return -1; 242574462Salfred 242674462Salfred for (i = 0; i < bytelen; i++) 242774462Salfred *p++ = 0xff; 242874462Salfred 242974462Salfred for (i = 0; i < bitsleft; i++) 243074462Salfred *p |= 1 << (7 - i); 243174462Salfred 243274462Salfred return 0; 243374462Salfred} 243474462Salfred 243574462Salfredstatic int 243674462Salfredcountones(struct sockaddr *sa) 243774462Salfred{ 243874462Salfred void *mask; 243974462Salfred int i, bits = 0, bytelen; 244074462Salfred u_int8_t *p; 244174462Salfred 244274462Salfred switch (sa->sa_family) { 244374462Salfred case AF_INET: 244474462Salfred mask = (u_int8_t *)&((struct sockaddr_in *)sa)->sin_addr; 244574462Salfred bytelen = 4; 244674462Salfred break; 244774462Salfred case AF_INET6: 244874462Salfred mask = (u_int8_t *)&((struct sockaddr_in6 *)sa)->sin6_addr; 244974462Salfred bytelen = 16; 245074462Salfred break; 245174462Salfred default: 245274462Salfred return 0; 245374462Salfred } 245474462Salfred 245574462Salfred p = mask; 245674462Salfred 245774462Salfred for (i = 0; i < bytelen; i++, p++) { 245874462Salfred if (*p != 0xff) { 245974462Salfred for (bits = 0; bits < 8; bits++) { 246074462Salfred if (!(*p & (1 << (7 - bits)))) 246174462Salfred break; 246274462Salfred } 246374462Salfred break; 246474462Salfred } 246574462Salfred } 246674462Salfred 246774462Salfred return (i * 8 + bits); 246874462Salfred} 246974462Salfred 247074462Salfredstatic int 247174462Salfredsacmp(struct sockaddr *sa1, struct sockaddr *sa2) 247274462Salfred{ 247374462Salfred void *p1, *p2; 247474462Salfred int len; 247574462Salfred 247674462Salfred if (sa1->sa_family != sa2->sa_family) 247774462Salfred return 1; 247874462Salfred 247974462Salfred switch (sa1->sa_family) { 248074462Salfred case AF_INET: 248174462Salfred p1 = &((struct sockaddr_in *)sa1)->sin_addr; 248274462Salfred p2 = &((struct sockaddr_in *)sa2)->sin_addr; 248374462Salfred len = 4; 248474462Salfred break; 248574462Salfred case AF_INET6: 248674462Salfred p1 = &((struct sockaddr_in6 *)sa1)->sin6_addr; 248774462Salfred p2 = &((struct sockaddr_in6 *)sa2)->sin6_addr; 248874462Salfred len = 16; 248974462Salfred if (((struct sockaddr_in6 *)sa1)->sin6_scope_id != 249074462Salfred ((struct sockaddr_in6 *)sa2)->sin6_scope_id) 249174462Salfred return 1; 249274462Salfred break; 249374462Salfred default: 249474462Salfred return 1; 249574462Salfred } 249674462Salfred 249774462Salfred return memcmp(p1, p2, len); 249874462Salfred} 249974462Salfred 250074462Salfredvoid terminate(sig) 250174462Salfredint sig; 250274462Salfred{ 250374462Salfred close(mountdlockfd); 250474462Salfred unlink(MOUNTDLOCK); 250574462Salfred pmap_unset(RPCPROG_MNT, 1); 250674462Salfred pmap_unset(RPCPROG_MNT, 3); 250774462Salfred exit (0); 250874462Salfred} 2509