mountd.c revision 121556
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 43105267Scharnier#if 0 441558Srgrimes#ifndef lint 4537663Scharnierstatic char sccsid[] = "@(#)mountd.c 8.15 (Berkeley) 5/1/95"; 46105267Scharnier#endif /*not lint*/ 4737663Scharnier#endif 481558Srgrimes 49105267Scharnier#include <sys/cdefs.h> 50105267Scharnier__FBSDID("$FreeBSD: head/usr.sbin/mountd/mountd.c 121556 2003-10-26 05:58:21Z peter $"); 51105267Scharnier 521558Srgrimes#include <sys/param.h> 531558Srgrimes#include <sys/mount.h> 5474462Salfred#include <sys/fcntl.h> 551558Srgrimes#include <sys/stat.h> 561558Srgrimes#include <sys/syslog.h> 5724330Sguido#include <sys/sysctl.h> 5896622Siedowse#include <sys/linker.h> 5996622Siedowse#include <sys/module.h> 601558Srgrimes 611558Srgrimes#include <rpc/rpc.h> 62109363Smbr#include <rpc/rpc_com.h> 631558Srgrimes#include <rpc/pmap_clnt.h> 6474462Salfred#include <rpc/pmap_prot.h> 6574462Salfred#include <rpcsvc/mount.h> 661558Srgrimes#include <nfs/rpcv2.h> 679336Sdfr#include <nfs/nfsproto.h> 6883653Speter#include <nfsserver/nfs.h> 6923681Speter#include <ufs/ufs/ufsmount.h> 7077162Sru#include <fs/msdosfs/msdosfsmount.h> 7177223Sru#include <fs/ntfs/ntfsmount.h> 7223681Speter#include <isofs/cd9660/cd9660_mount.h> /* XXX need isofs in include */ 731558Srgrimes 741558Srgrimes#include <arpa/inet.h> 751558Srgrimes 761558Srgrimes#include <ctype.h> 7737663Scharnier#include <err.h> 781558Srgrimes#include <errno.h> 791558Srgrimes#include <grp.h> 80103949Smike#include <limits.h> 811558Srgrimes#include <netdb.h> 821558Srgrimes#include <pwd.h> 831558Srgrimes#include <signal.h> 841558Srgrimes#include <stdio.h> 851558Srgrimes#include <stdlib.h> 861558Srgrimes#include <string.h> 871558Srgrimes#include <unistd.h> 881558Srgrimes#include "pathnames.h" 891558Srgrimes 901558Srgrimes#ifdef DEBUG 911558Srgrimes#include <stdarg.h> 921558Srgrimes#endif 931558Srgrimes 9474462Salfred#ifndef MOUNTDLOCK 9574462Salfred#define MOUNTDLOCK "/var/run/mountd.lock" 9674462Salfred#endif 9774462Salfred 981558Srgrimes/* 991558Srgrimes * Structures for keeping the mount list and export list 1001558Srgrimes */ 1011558Srgrimesstruct mountlist { 1021558Srgrimes struct mountlist *ml_next; 1031558Srgrimes char ml_host[RPCMNT_NAMELEN+1]; 1041558Srgrimes char ml_dirp[RPCMNT_PATHLEN+1]; 1051558Srgrimes}; 1061558Srgrimes 1071558Srgrimesstruct dirlist { 1081558Srgrimes struct dirlist *dp_left; 1091558Srgrimes struct dirlist *dp_right; 1101558Srgrimes int dp_flag; 1111558Srgrimes struct hostlist *dp_hosts; /* List of hosts this dir exported to */ 1121558Srgrimes char dp_dirp[1]; /* Actually malloc'd to size of dir */ 1131558Srgrimes}; 1141558Srgrimes/* dp_flag bits */ 1151558Srgrimes#define DP_DEFSET 0x1 1169336Sdfr#define DP_HOSTSET 0x2 1171558Srgrimes 1181558Srgrimesstruct exportlist { 1191558Srgrimes struct exportlist *ex_next; 1201558Srgrimes struct dirlist *ex_dirl; 1211558Srgrimes struct dirlist *ex_defdir; 1221558Srgrimes int ex_flag; 1231558Srgrimes fsid_t ex_fs; 1241558Srgrimes char *ex_fsdir; 12527447Sdfr char *ex_indexfile; 1261558Srgrimes}; 1271558Srgrimes/* ex_flag bits */ 1281558Srgrimes#define EX_LINKED 0x1 1291558Srgrimes 1301558Srgrimesstruct netmsk { 13174462Salfred struct sockaddr_storage nt_net; 13275801Siedowse struct sockaddr_storage nt_mask; 13342144Sdfr char *nt_name; 1341558Srgrimes}; 1351558Srgrimes 1361558Srgrimesunion grouptypes { 13774462Salfred struct addrinfo *gt_addrinfo; 1381558Srgrimes struct netmsk gt_net; 1391558Srgrimes}; 1401558Srgrimes 1411558Srgrimesstruct grouplist { 1421558Srgrimes int gr_type; 1431558Srgrimes union grouptypes gr_ptr; 1441558Srgrimes struct grouplist *gr_next; 1451558Srgrimes}; 1461558Srgrimes/* Group types */ 1471558Srgrimes#define GT_NULL 0x0 1481558Srgrimes#define GT_HOST 0x1 1491558Srgrimes#define GT_NET 0x2 15075641Siedowse#define GT_DEFAULT 0x3 1517401Swpaul#define GT_IGNORE 0x5 1521558Srgrimes 1531558Srgrimesstruct hostlist { 1549336Sdfr int ht_flag; /* Uses DP_xx bits */ 1551558Srgrimes struct grouplist *ht_grp; 1561558Srgrimes struct hostlist *ht_next; 1571558Srgrimes}; 1581558Srgrimes 1599336Sdfrstruct fhreturn { 1609336Sdfr int fhr_flag; 1619336Sdfr int fhr_vers; 1629336Sdfr nfsfh_t fhr_fh; 1639336Sdfr}; 1649336Sdfr 1651558Srgrimes/* Global defs */ 16692882Simpchar *add_expdir(struct dirlist **, char *, int); 16792882Simpvoid add_dlist(struct dirlist **, struct dirlist *, 16892882Simp struct grouplist *, int); 16992882Simpvoid add_mlist(char *, char *); 17092882Simpint check_dirpath(char *); 17192882Simpint check_options(struct dirlist *); 17275801Siedowseint checkmask(struct sockaddr *sa); 17392882Simpint chk_host(struct dirlist *, struct sockaddr *, int *, int *); 17475635Siedowsevoid del_mlist(char *hostp, char *dirp); 17592882Simpstruct dirlist *dirp_search(struct dirlist *, char *); 17692882Simpint do_mount(struct exportlist *, struct grouplist *, int, 17792882Simp struct xucred *, char *, int, struct statfs *); 17892882Simpint do_opt(char **, char **, struct exportlist *, struct grouplist *, 17992882Simp int *, int *, struct xucred *); 18092882Simpstruct exportlist *ex_search(fsid_t *); 18192882Simpstruct exportlist *get_exp(void); 18292882Simpvoid free_dir(struct dirlist *); 18392882Simpvoid free_exp(struct exportlist *); 18492882Simpvoid free_grp(struct grouplist *); 18592882Simpvoid free_host(struct hostlist *); 18692882Simpvoid get_exportlist(void); 18792882Simpint get_host(char *, struct grouplist *, struct grouplist *); 18892882Simpstruct hostlist *get_ht(void); 18992882Simpint get_line(void); 19092882Simpvoid get_mountlist(void); 19192882Simpint get_net(char *, struct netmsk *, int); 19292882Simpvoid getexp_err(struct exportlist *, struct grouplist *); 19392882Simpstruct grouplist *get_grp(void); 19492882Simpvoid hang_dirp(struct dirlist *, struct grouplist *, 19592882Simp struct exportlist *, int); 19675754Siedowsevoid huphandler(int sig); 19775801Siedowseint makemask(struct sockaddr_storage *ssp, int bitlen); 19892882Simpvoid mntsrv(struct svc_req *, SVCXPRT *); 19992882Simpvoid nextfield(char **, char **); 20092882Simpvoid out_of_mem(void); 20192882Simpvoid parsecred(char *, struct xucred *); 202100117Salfredint put_exlist(struct dirlist *, XDR *, struct dirlist *, int *, int); 20375801Siedowsevoid *sa_rawaddr(struct sockaddr *sa, int *nbytes); 20475801Siedowseint sacmp(struct sockaddr *sa1, struct sockaddr *sa2, 20575801Siedowse struct sockaddr *samask); 20692882Simpint scan_tree(struct dirlist *, struct sockaddr *); 20792882Simpstatic void usage(void); 20892882Simpint xdr_dir(XDR *, char *); 20992882Simpint xdr_explist(XDR *, caddr_t); 210100117Salfredint xdr_explist_brief(XDR *, caddr_t); 21192882Simpint xdr_fhs(XDR *, caddr_t); 21292882Simpint xdr_mlist(XDR *, caddr_t); 21392882Simpvoid terminate(int); 2141558Srgrimes 2151558Srgrimesstruct exportlist *exphead; 2161558Srgrimesstruct mountlist *mlhead; 2171558Srgrimesstruct grouplist *grphead; 2181558Srgrimeschar exname[MAXPATHLEN]; 21972650Sgreenstruct xucred def_anon = { 22091354Sdd XUCRED_VERSION, 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; 23075754Siedowseint got_sighup = 0; 23174462Salfred 2321558Srgrimesint opt_flags; 23374462Salfredstatic int have_v6 = 1; 23474462Salfred#ifdef NI_WITHSCOPEID 23574462Salfredstatic const int ninumeric = NI_NUMERICHOST | NI_WITHSCOPEID; 23674462Salfred#else 23774462Salfredstatic const int ninumeric = NI_NUMERICHOST; 23874462Salfred#endif 23974462Salfred 24074462Salfredint mountdlockfd; 24175801Siedowse/* Bits for opt_flags above */ 2421558Srgrimes#define OP_MAPROOT 0x01 2431558Srgrimes#define OP_MAPALL 0x02 24483653Speter/* 0x4 free */ 2451558Srgrimes#define OP_MASK 0x08 2461558Srgrimes#define OP_NET 0x10 2471558Srgrimes#define OP_ALLDIRS 0x40 24875801Siedowse#define OP_HAVEMASK 0x80 /* A mask was specified or inferred. */ 249100336Sjoerg#define OP_QUIET 0x100 25074462Salfred#define OP_MASKLEN 0x200 2511558Srgrimes 2521558Srgrimes#ifdef DEBUG 2531558Srgrimesint debug = 1; 25492882Simpvoid SYSLOG(int, const char *, ...) __printflike(2, 3); 2551558Srgrimes#define syslog SYSLOG 2561558Srgrimes#else 2571558Srgrimesint debug = 0; 2581558Srgrimes#endif 2591558Srgrimes 2601558Srgrimes/* 2611558Srgrimes * Mountd server for NFS mount protocol as described in: 2621558Srgrimes * NFS: Network File System Protocol Specification, RFC1094, Appendix A 2631558Srgrimes * The optional arguments are the exports file name 2641558Srgrimes * default: _PATH_EXPORTS 2651558Srgrimes * and "-n" to allow nonroot mount. 2661558Srgrimes */ 2671558Srgrimesint 2681558Srgrimesmain(argc, argv) 2691558Srgrimes int argc; 2701558Srgrimes char **argv; 2711558Srgrimes{ 27275754Siedowse fd_set readfds; 27374462Salfred SVCXPRT *udptransp, *tcptransp, *udp6transp, *tcp6transp; 27474462Salfred struct netconfig *udpconf, *tcpconf, *udp6conf, *tcp6conf; 27574462Salfred int udpsock, tcpsock, udp6sock, tcp6sock; 27674462Salfred int xcreated = 0, s; 277109363Smbr int maxrec = RPC_MAXDATASIZE; 27874462Salfred int one = 1; 27996622Siedowse int c; 2801558Srgrimes 28175635Siedowse udp6conf = tcp6conf = NULL; 28275635Siedowse udp6sock = tcp6sock = NULL; 28375635Siedowse 28474462Salfred /* Check that another mountd isn't already running. */ 28574462Salfred if ((mountdlockfd = (open(MOUNTDLOCK, O_RDONLY|O_CREAT, 0444))) == -1) 28674462Salfred err(1, "%s", MOUNTDLOCK); 28774462Salfred 28874462Salfred if(flock(mountdlockfd, LOCK_EX|LOCK_NB) == -1 && errno == EWOULDBLOCK) 289105267Scharnier errx(1, "another mountd is already running. Aborting"); 29074462Salfred s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); 29174462Salfred if (s < 0) 29274462Salfred have_v6 = 0; 29374462Salfred else 29474462Salfred close(s); 29583687Speter if (modfind("nfsserver") < 0) { 29683687Speter /* Not present in kernel, try loading it */ 29783687Speter if (kldload("nfsserver") < 0 || modfind("nfsserver") < 0) 29883687Speter errx(1, "NFS server is not available or loadable"); 2992999Swollman } 3002999Swollman 30131665Sguido while ((c = getopt(argc, argv, "2dlnr")) != -1) 3021558Srgrimes switch (c) { 30325087Sdfr case '2': 30425087Sdfr force_v2 = 1; 30525087Sdfr break; 3069336Sdfr case 'n': 3079336Sdfr resvport_only = 0; 3089336Sdfr break; 3099336Sdfr case 'r': 3109336Sdfr dir_only = 0; 3119336Sdfr break; 3128688Sphk case 'd': 3138688Sphk debug = debug ? 0 : 1; 3148688Sphk break; 31531656Sguido case 'l': 31631656Sguido log = 1; 31731656Sguido break; 3181558Srgrimes default: 31937663Scharnier usage(); 3201558Srgrimes }; 3211558Srgrimes argc -= optind; 3221558Srgrimes argv += optind; 3231558Srgrimes grphead = (struct grouplist *)NULL; 3241558Srgrimes exphead = (struct exportlist *)NULL; 3251558Srgrimes mlhead = (struct mountlist *)NULL; 3261558Srgrimes if (argc == 1) { 3271558Srgrimes strncpy(exname, *argv, MAXPATHLEN-1); 3281558Srgrimes exname[MAXPATHLEN-1] = '\0'; 3291558Srgrimes } else 3301558Srgrimes strcpy(exname, _PATH_EXPORTS); 3311558Srgrimes openlog("mountd", LOG_PID, LOG_DAEMON); 3321558Srgrimes if (debug) 33337663Scharnier warnx("getting export list"); 3341558Srgrimes get_exportlist(); 3351558Srgrimes if (debug) 33637663Scharnier warnx("getting mount list"); 3371558Srgrimes get_mountlist(); 3381558Srgrimes if (debug) 33937663Scharnier warnx("here we go"); 3401558Srgrimes if (debug == 0) { 3411558Srgrimes daemon(0, 0); 3421558Srgrimes signal(SIGINT, SIG_IGN); 3431558Srgrimes signal(SIGQUIT, SIG_IGN); 3441558Srgrimes } 34575754Siedowse signal(SIGHUP, huphandler); 34674462Salfred signal(SIGTERM, terminate); 3471558Srgrimes { FILE *pidfile = fopen(_PATH_MOUNTDPID, "w"); 3481558Srgrimes if (pidfile != NULL) { 3491558Srgrimes fprintf(pidfile, "%d\n", getpid()); 3501558Srgrimes fclose(pidfile); 3511558Srgrimes } 3521558Srgrimes } 35374462Salfred rpcb_unset(RPCPROG_MNT, RPCMNT_VER1, NULL); 35474462Salfred rpcb_unset(RPCPROG_MNT, RPCMNT_VER3, NULL); 35574462Salfred udpsock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); 35674462Salfred tcpsock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); 35774791Salfred udpconf = getnetconfigent("udp"); 35874791Salfred tcpconf = getnetconfigent("tcp"); 359109363Smbr 360109363Smbr rpc_control(RPC_SVC_CONNMAXREC_SET, &maxrec); 361109363Smbr 36274791Salfred if (!have_v6) 36374791Salfred goto skip_v6; 36474462Salfred udp6sock = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); 36574462Salfred tcp6sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP); 36674462Salfred /* 36774462Salfred * We're doing host-based access checks here, so don't allow 36874462Salfred * v4-in-v6 to confuse things. The kernel will disable it 36974462Salfred * by default on NFS sockets too. 37074462Salfred */ 37174462Salfred if (udp6sock != -1 && setsockopt(udp6sock, IPPROTO_IPV6, 372117684Srwatson IPV6_V6ONLY, &one, sizeof one) < 0) { 37374462Salfred syslog(LOG_ERR, "can't disable v4-in-v6 on UDP socket"); 37474462Salfred exit(1); 37574462Salfred } 37674462Salfred if (tcp6sock != -1 && setsockopt(tcp6sock, IPPROTO_IPV6, 377117684Srwatson IPV6_V6ONLY, &one, sizeof one) < 0) { 378117684Srwatson syslog(LOG_ERR, "can't disable v4-in-v6 on TCP socket"); 37974462Salfred exit(1); 38074462Salfred } 38174462Salfred udp6conf = getnetconfigent("udp6"); 38274462Salfred tcp6conf = getnetconfigent("tcp6"); 38374791Salfred 38474791Salfredskip_v6: 38524759Sguido if (!resvport_only) { 38683687Speter if (sysctlbyname("vfs.nfsrv.nfs_privport", NULL, NULL, 38783687Speter &resvport_only, sizeof(resvport_only)) != 0 && 38883687Speter errno != ENOENT) { 38924759Sguido syslog(LOG_ERR, "sysctl: %m"); 39024759Sguido exit(1); 39124759Sguido } 39224330Sguido } 39374462Salfred if (udpsock != -1 && udpconf != NULL) { 39474462Salfred bindresvport(udpsock, NULL); 39574462Salfred udptransp = svc_dg_create(udpsock, 0, 0); 39674462Salfred if (udptransp != NULL) { 39774462Salfred if (!svc_reg(udptransp, RPCPROG_MNT, RPCMNT_VER1, 39874462Salfred mntsrv, udpconf)) 39974462Salfred syslog(LOG_WARNING, "can't register UDP RPCMNT_VER1 service"); 40074462Salfred else 40174462Salfred xcreated++; 40274462Salfred if (!force_v2) { 40374462Salfred if (!svc_reg(udptransp, RPCPROG_MNT, RPCMNT_VER3, 40474462Salfred mntsrv, udpconf)) 40574462Salfred syslog(LOG_WARNING, "can't register UDP RPCMNT_VER3 service"); 40674462Salfred else 40774462Salfred xcreated++; 40874462Salfred } 40974462Salfred } else 41074462Salfred syslog(LOG_WARNING, "can't create UDP services"); 41174462Salfred 41274462Salfred } 41374462Salfred if (tcpsock != -1 && tcpconf != NULL) { 41474462Salfred bindresvport(tcpsock, NULL); 41574462Salfred listen(tcpsock, SOMAXCONN); 416109363Smbr tcptransp = svc_vc_create(tcpsock, RPC_MAXDATASIZE, RPC_MAXDATASIZE); 41774462Salfred if (tcptransp != NULL) { 41874462Salfred if (!svc_reg(tcptransp, RPCPROG_MNT, RPCMNT_VER1, 41974462Salfred mntsrv, tcpconf)) 42074462Salfred syslog(LOG_WARNING, "can't register TCP RPCMNT_VER1 service"); 42174462Salfred else 42274462Salfred xcreated++; 42374462Salfred if (!force_v2) { 42474462Salfred if (!svc_reg(tcptransp, RPCPROG_MNT, RPCMNT_VER3, 42574462Salfred mntsrv, tcpconf)) 42674462Salfred syslog(LOG_WARNING, "can't register TCP RPCMNT_VER3 service"); 42774462Salfred else 42874462Salfred xcreated++; 42974462Salfred } 43074462Salfred } else 43174462Salfred syslog(LOG_WARNING, "can't create TCP service"); 43274462Salfred 43374462Salfred } 43474791Salfred if (have_v6 && udp6sock != -1 && udp6conf != NULL) { 43574462Salfred bindresvport(udp6sock, NULL); 43674462Salfred udp6transp = svc_dg_create(udp6sock, 0, 0); 43774462Salfred if (udp6transp != NULL) { 43874462Salfred if (!svc_reg(udp6transp, RPCPROG_MNT, RPCMNT_VER1, 43974462Salfred mntsrv, udp6conf)) 44074462Salfred syslog(LOG_WARNING, "can't register UDP6 RPCMNT_VER1 service"); 44174462Salfred else 44274462Salfred xcreated++; 44374462Salfred if (!force_v2) { 44474462Salfred if (!svc_reg(udp6transp, RPCPROG_MNT, RPCMNT_VER3, 44574462Salfred mntsrv, udp6conf)) 44674462Salfred syslog(LOG_WARNING, "can't register UDP6 RPCMNT_VER3 service"); 44774462Salfred else 44874462Salfred xcreated++; 44974462Salfred } 45074462Salfred } else 45174462Salfred syslog(LOG_WARNING, "can't create UDP6 service"); 45274462Salfred 45374462Salfred } 45474791Salfred if (have_v6 && tcp6sock != -1 && tcp6conf != NULL) { 45574462Salfred bindresvport(tcp6sock, NULL); 45674462Salfred listen(tcp6sock, SOMAXCONN); 457109363Smbr tcp6transp = svc_vc_create(tcp6sock, RPC_MAXDATASIZE, RPC_MAXDATASIZE); 45874462Salfred if (tcp6transp != NULL) { 45974462Salfred if (!svc_reg(tcp6transp, RPCPROG_MNT, RPCMNT_VER1, 46074462Salfred mntsrv, tcp6conf)) 46174462Salfred syslog(LOG_WARNING, "can't register TCP6 RPCMNT_VER1 service"); 46274462Salfred else 46374462Salfred xcreated++; 46474462Salfred if (!force_v2) { 46574462Salfred if (!svc_reg(tcp6transp, RPCPROG_MNT, RPCMNT_VER3, 46674462Salfred mntsrv, tcp6conf)) 46774462Salfred syslog(LOG_WARNING, "can't register TCP6 RPCMNT_VER3 service"); 46874462Salfred else 46974462Salfred xcreated++; 47074462Salfred } 47174462Salfred } else 47274462Salfred syslog(LOG_WARNING, "can't create TCP6 service"); 47374462Salfred 47474462Salfred } 47574462Salfred if (xcreated == 0) { 47674462Salfred syslog(LOG_ERR, "could not create any services"); 4771558Srgrimes exit(1); 4781558Srgrimes } 47975754Siedowse 48075754Siedowse /* Expand svc_run() here so that we can call get_exportlist(). */ 48175754Siedowse for (;;) { 48275754Siedowse if (got_sighup) { 48375754Siedowse get_exportlist(); 48475754Siedowse got_sighup = 0; 48575754Siedowse } 48675754Siedowse readfds = svc_fdset; 48775754Siedowse switch (select(svc_maxfd + 1, &readfds, NULL, NULL, NULL)) { 48875754Siedowse case -1: 48975754Siedowse if (errno == EINTR) 49075754Siedowse continue; 49175754Siedowse syslog(LOG_ERR, "mountd died: select: %m"); 49275754Siedowse exit(1); 49375754Siedowse case 0: 49475754Siedowse continue; 49575754Siedowse default: 49675754Siedowse svc_getreqset(&readfds); 49775754Siedowse } 49875754Siedowse } 4991558Srgrimes} 5001558Srgrimes 50137663Scharnierstatic void 50237663Scharnierusage() 50337663Scharnier{ 50437663Scharnier fprintf(stderr, 50537663Scharnier "usage: mountd [-2] [-d] [-l] [-n] [-r] [export_file]\n"); 50637663Scharnier exit(1); 50737663Scharnier} 50837663Scharnier 5091558Srgrimes/* 5101558Srgrimes * The mount rpc service 5111558Srgrimes */ 5121558Srgrimesvoid 5131558Srgrimesmntsrv(rqstp, transp) 5141558Srgrimes struct svc_req *rqstp; 5151558Srgrimes SVCXPRT *transp; 5161558Srgrimes{ 5171558Srgrimes struct exportlist *ep; 5181558Srgrimes struct dirlist *dp; 5199336Sdfr struct fhreturn fhr; 5201558Srgrimes struct stat stb; 5211558Srgrimes struct statfs fsb; 52274462Salfred struct addrinfo *ai; 52374462Salfred char host[NI_MAXHOST], numerichost[NI_MAXHOST]; 52474462Salfred int lookup_failed = 1; 52574462Salfred struct sockaddr *saddr; 5269336Sdfr u_short sport; 52723681Speter char rpcpath[RPCMNT_PATHLEN + 1], dirpath[MAXPATHLEN]; 52828911Sguido int bad = 0, defset, hostset; 5299336Sdfr sigset_t sighup_mask; 5301558Srgrimes 5319336Sdfr sigemptyset(&sighup_mask); 5329336Sdfr sigaddset(&sighup_mask, SIGHUP); 53374462Salfred saddr = svc_getrpccaller(transp)->buf; 53474462Salfred switch (saddr->sa_family) { 53574462Salfred case AF_INET6: 53675635Siedowse sport = ntohs(((struct sockaddr_in6 *)saddr)->sin6_port); 53774462Salfred break; 53874462Salfred case AF_INET: 53975635Siedowse sport = ntohs(((struct sockaddr_in *)saddr)->sin_port); 54074462Salfred break; 54174462Salfred default: 54274462Salfred syslog(LOG_ERR, "request from unknown address family"); 54374462Salfred return; 54474462Salfred } 54574462Salfred lookup_failed = getnameinfo(saddr, saddr->sa_len, host, sizeof host, 54674462Salfred NULL, 0, 0); 54774462Salfred getnameinfo(saddr, saddr->sa_len, numerichost, 54874462Salfred sizeof numerichost, NULL, 0, NI_NUMERICHOST); 54974462Salfred ai = NULL; 5501558Srgrimes switch (rqstp->rq_proc) { 5511558Srgrimes case NULLPROC: 552121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_void, NULL)) 55337663Scharnier syslog(LOG_ERR, "can't send reply"); 5541558Srgrimes return; 5551558Srgrimes case RPCMNT_MOUNT: 5569336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 55731656Sguido syslog(LOG_NOTICE, 55831656Sguido "mount request from %s from unprivileged port", 55974462Salfred numerichost); 5601558Srgrimes svcerr_weakauth(transp); 5611558Srgrimes return; 5621558Srgrimes } 563121556Speter if (!svc_getargs(transp, (xdrproc_t)xdr_dir, rpcpath)) { 56431656Sguido syslog(LOG_NOTICE, "undecodable mount request from %s", 56574462Salfred numerichost); 5661558Srgrimes svcerr_decode(transp); 5671558Srgrimes return; 5681558Srgrimes } 5691558Srgrimes 5701558Srgrimes /* 5711558Srgrimes * Get the real pathname and make sure it is a directory 5729336Sdfr * or a regular file if the -r option was specified 5739336Sdfr * and it exists. 5741558Srgrimes */ 57551968Salfred if (realpath(rpcpath, dirpath) == NULL || 5761558Srgrimes stat(dirpath, &stb) < 0 || 5779336Sdfr (!S_ISDIR(stb.st_mode) && 57874462Salfred (dir_only || !S_ISREG(stb.st_mode))) || 5791558Srgrimes statfs(dirpath, &fsb) < 0) { 5801558Srgrimes chdir("/"); /* Just in case realpath doesn't */ 58131656Sguido syslog(LOG_NOTICE, 58237663Scharnier "mount request from %s for non existent path %s", 58374462Salfred numerichost, dirpath); 5841558Srgrimes if (debug) 58537663Scharnier warnx("stat failed on %s", dirpath); 58628911Sguido bad = ENOENT; /* We will send error reply later */ 5871558Srgrimes } 5881558Srgrimes 5891558Srgrimes /* Check in the exports list */ 5909336Sdfr sigprocmask(SIG_BLOCK, &sighup_mask, NULL); 5911558Srgrimes ep = ex_search(&fsb.f_fsid); 5929336Sdfr hostset = defset = 0; 5939336Sdfr if (ep && (chk_host(ep->ex_defdir, saddr, &defset, &hostset) || 5941558Srgrimes ((dp = dirp_search(ep->ex_dirl, dirpath)) && 59574462Salfred chk_host(dp, saddr, &defset, &hostset)) || 59674462Salfred (defset && scan_tree(ep->ex_defdir, saddr) == 0 && 59774462Salfred scan_tree(ep->ex_dirl, saddr) == 0))) { 59828911Sguido if (bad) { 599121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_long, 60028911Sguido (caddr_t)&bad)) 60137663Scharnier syslog(LOG_ERR, "can't send reply"); 60228911Sguido sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 60328911Sguido return; 60428911Sguido } 6059336Sdfr if (hostset & DP_HOSTSET) 6069336Sdfr fhr.fhr_flag = hostset; 6079336Sdfr else 6089336Sdfr fhr.fhr_flag = defset; 6099336Sdfr fhr.fhr_vers = rqstp->rq_vers; 6101558Srgrimes /* Get the file handle */ 61123681Speter memset(&fhr.fhr_fh, 0, sizeof(nfsfh_t)); 6129336Sdfr if (getfh(dirpath, (fhandle_t *)&fhr.fhr_fh) < 0) { 6131558Srgrimes bad = errno; 61437663Scharnier syslog(LOG_ERR, "can't get fh for %s", dirpath); 615121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_long, 6161558Srgrimes (caddr_t)&bad)) 61737663Scharnier syslog(LOG_ERR, "can't send reply"); 6189336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 6191558Srgrimes return; 6201558Srgrimes } 621121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_fhs, 622121556Speter (caddr_t)&fhr)) 62337663Scharnier syslog(LOG_ERR, "can't send reply"); 62474462Salfred if (!lookup_failed) 62574462Salfred add_mlist(host, dirpath); 6261558Srgrimes else 62774462Salfred add_mlist(numerichost, dirpath); 6281558Srgrimes if (debug) 62937663Scharnier warnx("mount successful"); 63031656Sguido if (log) 63131656Sguido syslog(LOG_NOTICE, 63231656Sguido "mount request succeeded from %s for %s", 63374462Salfred numerichost, dirpath); 63431656Sguido } else { 6351558Srgrimes bad = EACCES; 63631656Sguido syslog(LOG_NOTICE, 63731656Sguido "mount request denied from %s for %s", 63874462Salfred numerichost, dirpath); 63931656Sguido } 64028911Sguido 641121556Speter if (bad && !svc_sendreply(transp, (xdrproc_t)xdr_long, 642121556Speter (caddr_t)&bad)) 64337663Scharnier syslog(LOG_ERR, "can't send reply"); 6449336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 6451558Srgrimes return; 6461558Srgrimes case RPCMNT_DUMP: 647121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_mlist, (caddr_t)NULL)) 64837663Scharnier syslog(LOG_ERR, "can't send reply"); 64931656Sguido else if (log) 65031656Sguido syslog(LOG_NOTICE, 65131656Sguido "dump request succeeded from %s", 65274462Salfred numerichost); 6531558Srgrimes return; 6541558Srgrimes case RPCMNT_UMOUNT: 6559336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 65631656Sguido syslog(LOG_NOTICE, 65731656Sguido "umount request from %s from unprivileged port", 65874462Salfred numerichost); 6591558Srgrimes svcerr_weakauth(transp); 6601558Srgrimes return; 6611558Srgrimes } 662121556Speter if (!svc_getargs(transp, (xdrproc_t)xdr_dir, rpcpath)) { 66331656Sguido syslog(LOG_NOTICE, "undecodable umount request from %s", 66474462Salfred numerichost); 6651558Srgrimes svcerr_decode(transp); 6661558Srgrimes return; 6671558Srgrimes } 66851968Salfred if (realpath(rpcpath, dirpath) == NULL) { 66951968Salfred syslog(LOG_NOTICE, "umount request from %s " 67051968Salfred "for non existent path %s", 67174462Salfred numerichost, dirpath); 67251968Salfred } 673121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_void, (caddr_t)NULL)) 67437663Scharnier syslog(LOG_ERR, "can't send reply"); 67574462Salfred if (!lookup_failed) 67675635Siedowse del_mlist(host, dirpath); 67775635Siedowse del_mlist(numerichost, dirpath); 67831656Sguido if (log) 67931656Sguido syslog(LOG_NOTICE, 68031656Sguido "umount request succeeded from %s for %s", 68174462Salfred numerichost, dirpath); 6821558Srgrimes return; 6831558Srgrimes case RPCMNT_UMNTALL: 6849336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 68531656Sguido syslog(LOG_NOTICE, 68631656Sguido "umountall request from %s from unprivileged port", 68774462Salfred numerichost); 6881558Srgrimes svcerr_weakauth(transp); 6891558Srgrimes return; 6901558Srgrimes } 691121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_void, (caddr_t)NULL)) 69237663Scharnier syslog(LOG_ERR, "can't send reply"); 69374462Salfred if (!lookup_failed) 69475635Siedowse del_mlist(host, NULL); 69575635Siedowse del_mlist(numerichost, NULL); 69631656Sguido if (log) 69731656Sguido syslog(LOG_NOTICE, 69831656Sguido "umountall request succeeded from %s", 69974462Salfred numerichost); 7001558Srgrimes return; 7011558Srgrimes case RPCMNT_EXPORT: 702121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_explist, (caddr_t)NULL)) 703121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_explist_brief, 704121556Speter (caddr_t)NULL)) 705100117Salfred syslog(LOG_ERR, "can't send reply"); 70631656Sguido if (log) 70731656Sguido syslog(LOG_NOTICE, 70831656Sguido "export request succeeded from %s", 70974462Salfred numerichost); 7101558Srgrimes return; 7111558Srgrimes default: 7121558Srgrimes svcerr_noproc(transp); 7131558Srgrimes return; 7141558Srgrimes } 7151558Srgrimes} 7161558Srgrimes 7171558Srgrimes/* 7181558Srgrimes * Xdr conversion for a dirpath string 7191558Srgrimes */ 7201558Srgrimesint 7211558Srgrimesxdr_dir(xdrsp, dirp) 7221558Srgrimes XDR *xdrsp; 7231558Srgrimes char *dirp; 7241558Srgrimes{ 7251558Srgrimes return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN)); 7261558Srgrimes} 7271558Srgrimes 7281558Srgrimes/* 7299336Sdfr * Xdr routine to generate file handle reply 7301558Srgrimes */ 7311558Srgrimesint 7329336Sdfrxdr_fhs(xdrsp, cp) 7331558Srgrimes XDR *xdrsp; 7349336Sdfr caddr_t cp; 7351558Srgrimes{ 73692806Sobrien struct fhreturn *fhrp = (struct fhreturn *)cp; 7379336Sdfr u_long ok = 0, len, auth; 7381558Srgrimes 7391558Srgrimes if (!xdr_long(xdrsp, &ok)) 7401558Srgrimes return (0); 7419336Sdfr switch (fhrp->fhr_vers) { 7429336Sdfr case 1: 7439336Sdfr return (xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, NFSX_V2FH)); 7449336Sdfr case 3: 7459336Sdfr len = NFSX_V3FH; 7469336Sdfr if (!xdr_long(xdrsp, &len)) 7479336Sdfr return (0); 7489336Sdfr if (!xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, len)) 7499336Sdfr return (0); 75083653Speter auth = RPCAUTH_UNIX; 7519336Sdfr len = 1; 7529336Sdfr if (!xdr_long(xdrsp, &len)) 7539336Sdfr return (0); 7549336Sdfr return (xdr_long(xdrsp, &auth)); 7559336Sdfr }; 7569336Sdfr return (0); 7571558Srgrimes} 7581558Srgrimes 7591558Srgrimesint 7601558Srgrimesxdr_mlist(xdrsp, cp) 7611558Srgrimes XDR *xdrsp; 7621558Srgrimes caddr_t cp; 7631558Srgrimes{ 7641558Srgrimes struct mountlist *mlp; 7651558Srgrimes int true = 1; 7661558Srgrimes int false = 0; 7671558Srgrimes char *strp; 7681558Srgrimes 7691558Srgrimes mlp = mlhead; 7701558Srgrimes while (mlp) { 7711558Srgrimes if (!xdr_bool(xdrsp, &true)) 7721558Srgrimes return (0); 7731558Srgrimes strp = &mlp->ml_host[0]; 7741558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN)) 7751558Srgrimes return (0); 7761558Srgrimes strp = &mlp->ml_dirp[0]; 7771558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 7781558Srgrimes return (0); 7791558Srgrimes mlp = mlp->ml_next; 7801558Srgrimes } 7811558Srgrimes if (!xdr_bool(xdrsp, &false)) 7821558Srgrimes return (0); 7831558Srgrimes return (1); 7841558Srgrimes} 7851558Srgrimes 7861558Srgrimes/* 7871558Srgrimes * Xdr conversion for export list 7881558Srgrimes */ 7891558Srgrimesint 790100117Salfredxdr_explist_common(xdrsp, cp, brief) 7911558Srgrimes XDR *xdrsp; 7921558Srgrimes caddr_t cp; 793100117Salfred int brief; 7941558Srgrimes{ 7951558Srgrimes struct exportlist *ep; 7961558Srgrimes int false = 0; 7979336Sdfr int putdef; 7989336Sdfr sigset_t sighup_mask; 7991558Srgrimes 8009336Sdfr sigemptyset(&sighup_mask); 8019336Sdfr sigaddset(&sighup_mask, SIGHUP); 8029336Sdfr sigprocmask(SIG_BLOCK, &sighup_mask, NULL); 8031558Srgrimes ep = exphead; 8041558Srgrimes while (ep) { 8051558Srgrimes putdef = 0; 806100117Salfred if (put_exlist(ep->ex_dirl, xdrsp, ep->ex_defdir, 807100117Salfred &putdef, brief)) 8081558Srgrimes goto errout; 8091558Srgrimes if (ep->ex_defdir && putdef == 0 && 8101558Srgrimes put_exlist(ep->ex_defdir, xdrsp, (struct dirlist *)NULL, 811100117Salfred &putdef, brief)) 8121558Srgrimes goto errout; 8131558Srgrimes ep = ep->ex_next; 8141558Srgrimes } 8159336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 8161558Srgrimes if (!xdr_bool(xdrsp, &false)) 8171558Srgrimes return (0); 8181558Srgrimes return (1); 8191558Srgrimeserrout: 8209336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 8211558Srgrimes return (0); 8221558Srgrimes} 8231558Srgrimes 8241558Srgrimes/* 8251558Srgrimes * Called from xdr_explist() to traverse the tree and export the 8261558Srgrimes * directory paths. 8271558Srgrimes */ 8281558Srgrimesint 829100117Salfredput_exlist(dp, xdrsp, adp, putdefp, brief) 8301558Srgrimes struct dirlist *dp; 8311558Srgrimes XDR *xdrsp; 8321558Srgrimes struct dirlist *adp; 8331558Srgrimes int *putdefp; 834100117Salfred int brief; 8351558Srgrimes{ 8361558Srgrimes struct grouplist *grp; 8371558Srgrimes struct hostlist *hp; 8381558Srgrimes int true = 1; 8391558Srgrimes int false = 0; 8401558Srgrimes int gotalldir = 0; 8411558Srgrimes char *strp; 8421558Srgrimes 8431558Srgrimes if (dp) { 844100117Salfred if (put_exlist(dp->dp_left, xdrsp, adp, putdefp, brief)) 8451558Srgrimes return (1); 8461558Srgrimes if (!xdr_bool(xdrsp, &true)) 8471558Srgrimes return (1); 8481558Srgrimes strp = dp->dp_dirp; 8491558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 8501558Srgrimes return (1); 8511558Srgrimes if (adp && !strcmp(dp->dp_dirp, adp->dp_dirp)) { 8521558Srgrimes gotalldir = 1; 8531558Srgrimes *putdefp = 1; 8541558Srgrimes } 855100117Salfred if (brief) { 856100117Salfred if (!xdr_bool(xdrsp, &true)) 857100117Salfred return (1); 858100117Salfred strp = "(...)"; 859100117Salfred if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 860100117Salfred return (1); 861100117Salfred } else if ((dp->dp_flag & DP_DEFSET) == 0 && 8621558Srgrimes (gotalldir == 0 || (adp->dp_flag & DP_DEFSET) == 0)) { 8631558Srgrimes hp = dp->dp_hosts; 8641558Srgrimes while (hp) { 8651558Srgrimes grp = hp->ht_grp; 8661558Srgrimes if (grp->gr_type == GT_HOST) { 8671558Srgrimes if (!xdr_bool(xdrsp, &true)) 8681558Srgrimes return (1); 86974462Salfred strp = grp->gr_ptr.gt_addrinfo->ai_canonname; 8708871Srgrimes if (!xdr_string(xdrsp, &strp, 8711558Srgrimes RPCMNT_NAMELEN)) 8721558Srgrimes return (1); 8731558Srgrimes } else if (grp->gr_type == GT_NET) { 8741558Srgrimes if (!xdr_bool(xdrsp, &true)) 8751558Srgrimes return (1); 8761558Srgrimes strp = grp->gr_ptr.gt_net.nt_name; 8778871Srgrimes if (!xdr_string(xdrsp, &strp, 8781558Srgrimes RPCMNT_NAMELEN)) 8791558Srgrimes return (1); 8801558Srgrimes } 8811558Srgrimes hp = hp->ht_next; 8821558Srgrimes if (gotalldir && hp == (struct hostlist *)NULL) { 8831558Srgrimes hp = adp->dp_hosts; 8841558Srgrimes gotalldir = 0; 8851558Srgrimes } 8861558Srgrimes } 8871558Srgrimes } 8881558Srgrimes if (!xdr_bool(xdrsp, &false)) 8891558Srgrimes return (1); 890100117Salfred if (put_exlist(dp->dp_right, xdrsp, adp, putdefp, brief)) 8911558Srgrimes return (1); 8921558Srgrimes } 8931558Srgrimes return (0); 8941558Srgrimes} 8951558Srgrimes 896100117Salfredint 897100117Salfredxdr_explist(xdrsp, cp) 898100117Salfred XDR *xdrsp; 899100117Salfred caddr_t cp; 900100117Salfred{ 901100117Salfred 902100117Salfred return xdr_explist_common(xdrsp, cp, 0); 903100117Salfred} 904100117Salfred 905100117Salfredint 906100117Salfredxdr_explist_brief(xdrsp, cp) 907100117Salfred XDR *xdrsp; 908100117Salfred caddr_t cp; 909100117Salfred{ 910100117Salfred 911100117Salfred return xdr_explist_common(xdrsp, cp, 1); 912100117Salfred} 913100117Salfred 91496622Siedowsechar *line; 91596622Siedowseint linesize; 9161558SrgrimesFILE *exp_file; 9171558Srgrimes 9181558Srgrimes/* 9191558Srgrimes * Get the export list 9201558Srgrimes */ 9211558Srgrimesvoid 9221558Srgrimesget_exportlist() 9231558Srgrimes{ 9241558Srgrimes struct exportlist *ep, *ep2; 9251558Srgrimes struct grouplist *grp, *tgrp; 9261558Srgrimes struct exportlist **epp; 9271558Srgrimes struct dirlist *dirhead; 9281558Srgrimes struct statfs fsb, *fsp; 92972650Sgreen struct xucred anon; 9301558Srgrimes char *cp, *endcp, *dirp, *hst, *usr, *dom, savedc; 9311558Srgrimes int len, has_host, exflags, got_nondir, dirplen, num, i, netgrp; 9321558Srgrimes 93351968Salfred dirp = NULL; 93451968Salfred dirplen = 0; 93551968Salfred 9361558Srgrimes /* 9371558Srgrimes * First, get rid of the old list 9381558Srgrimes */ 9391558Srgrimes ep = exphead; 9401558Srgrimes while (ep) { 9411558Srgrimes ep2 = ep; 9421558Srgrimes ep = ep->ex_next; 9431558Srgrimes free_exp(ep2); 9441558Srgrimes } 9451558Srgrimes exphead = (struct exportlist *)NULL; 9461558Srgrimes 9471558Srgrimes grp = grphead; 9481558Srgrimes while (grp) { 9491558Srgrimes tgrp = grp; 9501558Srgrimes grp = grp->gr_next; 9511558Srgrimes free_grp(tgrp); 9521558Srgrimes } 9531558Srgrimes grphead = (struct grouplist *)NULL; 9541558Srgrimes 9551558Srgrimes /* 9561558Srgrimes * And delete exports that are in the kernel for all local 95796707Strhodes * filesystems. 95896707Strhodes * XXX: Should know how to handle all local exportable filesystems 95923681Speter * instead of just "ufs". 9601558Srgrimes */ 9611558Srgrimes num = getmntinfo(&fsp, MNT_NOWAIT); 9621558Srgrimes for (i = 0; i < num; i++) { 9631558Srgrimes union { 9641558Srgrimes struct ufs_args ua; 9651558Srgrimes struct iso_args ia; 9669336Sdfr struct msdosfs_args da; 96754093Ssemenu struct ntfs_args na; 9681558Srgrimes } targs; 9691558Srgrimes 97077435Sphk if (!strcmp(fsp->f_fstypename, "ufs") || 97177577Sru !strcmp(fsp->f_fstypename, "msdosfs") || 97254093Ssemenu !strcmp(fsp->f_fstypename, "ntfs") || 97323681Speter !strcmp(fsp->f_fstypename, "cd9660")) { 9749336Sdfr targs.ua.fspec = NULL; 9759336Sdfr targs.ua.export.ex_flags = MNT_DELEXPORT; 9769336Sdfr if (mount(fsp->f_fstypename, fsp->f_mntonname, 97777405Siedowse fsp->f_flags | MNT_UPDATE, (caddr_t)&targs) < 0 && 97877405Siedowse errno != ENOENT) 97977405Siedowse syslog(LOG_ERR, 98077405Siedowse "can't delete exports for %s: %m", 98174462Salfred fsp->f_mntonname); 9821558Srgrimes } 9831558Srgrimes fsp++; 9841558Srgrimes } 9851558Srgrimes 9861558Srgrimes /* 9871558Srgrimes * Read in the exports file and build the list, calling 9881558Srgrimes * mount() as we go along to push the export rules into the kernel. 9891558Srgrimes */ 9901558Srgrimes if ((exp_file = fopen(exname, "r")) == NULL) { 99137663Scharnier syslog(LOG_ERR, "can't open %s", exname); 9921558Srgrimes exit(2); 9931558Srgrimes } 9941558Srgrimes dirhead = (struct dirlist *)NULL; 9951558Srgrimes while (get_line()) { 9961558Srgrimes if (debug) 99737663Scharnier warnx("got line %s", line); 9981558Srgrimes cp = line; 9991558Srgrimes nextfield(&cp, &endcp); 10001558Srgrimes if (*cp == '#') 10011558Srgrimes goto nextline; 10021558Srgrimes 10031558Srgrimes /* 10041558Srgrimes * Set defaults. 10051558Srgrimes */ 10061558Srgrimes has_host = FALSE; 10071558Srgrimes anon = def_anon; 10081558Srgrimes exflags = MNT_EXPORTED; 10091558Srgrimes got_nondir = 0; 10101558Srgrimes opt_flags = 0; 10111558Srgrimes ep = (struct exportlist *)NULL; 10121558Srgrimes 10131558Srgrimes /* 10141558Srgrimes * Create new exports list entry 10151558Srgrimes */ 10161558Srgrimes len = endcp-cp; 10171558Srgrimes tgrp = grp = get_grp(); 10181558Srgrimes while (len > 0) { 10191558Srgrimes if (len > RPCMNT_NAMELEN) { 10201558Srgrimes getexp_err(ep, tgrp); 10211558Srgrimes goto nextline; 10221558Srgrimes } 10231558Srgrimes if (*cp == '-') { 10241558Srgrimes if (ep == (struct exportlist *)NULL) { 10251558Srgrimes getexp_err(ep, tgrp); 10261558Srgrimes goto nextline; 10271558Srgrimes } 10281558Srgrimes if (debug) 102937663Scharnier warnx("doing opt %s", cp); 10301558Srgrimes got_nondir = 1; 10311558Srgrimes if (do_opt(&cp, &endcp, ep, grp, &has_host, 10321558Srgrimes &exflags, &anon)) { 10331558Srgrimes getexp_err(ep, tgrp); 10341558Srgrimes goto nextline; 10351558Srgrimes } 10361558Srgrimes } else if (*cp == '/') { 10371558Srgrimes savedc = *endcp; 10381558Srgrimes *endcp = '\0'; 10391558Srgrimes if (check_dirpath(cp) && 10401558Srgrimes statfs(cp, &fsb) >= 0) { 10411558Srgrimes if (got_nondir) { 104237663Scharnier syslog(LOG_ERR, "dirs must be first"); 10431558Srgrimes getexp_err(ep, tgrp); 10441558Srgrimes goto nextline; 10451558Srgrimes } 10461558Srgrimes if (ep) { 10471558Srgrimes if (ep->ex_fs.val[0] != fsb.f_fsid.val[0] || 10481558Srgrimes ep->ex_fs.val[1] != fsb.f_fsid.val[1]) { 10491558Srgrimes getexp_err(ep, tgrp); 10501558Srgrimes goto nextline; 10511558Srgrimes } 10521558Srgrimes } else { 10531558Srgrimes /* 10541558Srgrimes * See if this directory is already 10551558Srgrimes * in the list. 10561558Srgrimes */ 10571558Srgrimes ep = ex_search(&fsb.f_fsid); 10581558Srgrimes if (ep == (struct exportlist *)NULL) { 10591558Srgrimes ep = get_exp(); 10601558Srgrimes ep->ex_fs = fsb.f_fsid; 10611558Srgrimes ep->ex_fsdir = (char *) 10621558Srgrimes malloc(strlen(fsb.f_mntonname) + 1); 10631558Srgrimes if (ep->ex_fsdir) 10641558Srgrimes strcpy(ep->ex_fsdir, 10651558Srgrimes fsb.f_mntonname); 10661558Srgrimes else 10671558Srgrimes out_of_mem(); 10681558Srgrimes if (debug) 106974462Salfred warnx("making new ep fs=0x%x,0x%x", 107074462Salfred fsb.f_fsid.val[0], 107174462Salfred fsb.f_fsid.val[1]); 10721558Srgrimes } else if (debug) 107337663Scharnier warnx("found ep fs=0x%x,0x%x", 10741558Srgrimes fsb.f_fsid.val[0], 10751558Srgrimes fsb.f_fsid.val[1]); 10761558Srgrimes } 10771558Srgrimes 10781558Srgrimes /* 10791558Srgrimes * Add dirpath to export mount point. 10801558Srgrimes */ 10811558Srgrimes dirp = add_expdir(&dirhead, cp, len); 10821558Srgrimes dirplen = len; 10831558Srgrimes } else { 10841558Srgrimes getexp_err(ep, tgrp); 10851558Srgrimes goto nextline; 10861558Srgrimes } 10871558Srgrimes *endcp = savedc; 10881558Srgrimes } else { 10891558Srgrimes savedc = *endcp; 10901558Srgrimes *endcp = '\0'; 10911558Srgrimes got_nondir = 1; 10921558Srgrimes if (ep == (struct exportlist *)NULL) { 10931558Srgrimes getexp_err(ep, tgrp); 10941558Srgrimes goto nextline; 10951558Srgrimes } 10961558Srgrimes 10971558Srgrimes /* 10981558Srgrimes * Get the host or netgroup. 10991558Srgrimes */ 11001558Srgrimes setnetgrent(cp); 11011558Srgrimes netgrp = getnetgrent(&hst, &usr, &dom); 11021558Srgrimes do { 11031558Srgrimes if (has_host) { 11041558Srgrimes grp->gr_next = get_grp(); 11051558Srgrimes grp = grp->gr_next; 11061558Srgrimes } 11071558Srgrimes if (netgrp) { 110837003Sjoerg if (hst == 0) { 110937663Scharnier syslog(LOG_ERR, 111037663Scharnier "null hostname in netgroup %s, skipping", cp); 111137004Sjoerg grp->gr_type = GT_IGNORE; 111237003Sjoerg } else if (get_host(hst, grp, tgrp)) { 111337663Scharnier syslog(LOG_ERR, 111437663Scharnier "bad host %s in netgroup %s, skipping", hst, cp); 111529317Sjlemon grp->gr_type = GT_IGNORE; 11161558Srgrimes } 11177401Swpaul } else if (get_host(cp, grp, tgrp)) { 111837663Scharnier syslog(LOG_ERR, "bad host %s, skipping", cp); 111929317Sjlemon grp->gr_type = GT_IGNORE; 11201558Srgrimes } 11211558Srgrimes has_host = TRUE; 11221558Srgrimes } while (netgrp && getnetgrent(&hst, &usr, &dom)); 11231558Srgrimes endnetgrent(); 11241558Srgrimes *endcp = savedc; 11251558Srgrimes } 11261558Srgrimes cp = endcp; 11271558Srgrimes nextfield(&cp, &endcp); 11281558Srgrimes len = endcp - cp; 11291558Srgrimes } 11301558Srgrimes if (check_options(dirhead)) { 11311558Srgrimes getexp_err(ep, tgrp); 11321558Srgrimes goto nextline; 11331558Srgrimes } 11341558Srgrimes if (!has_host) { 113575641Siedowse grp->gr_type = GT_DEFAULT; 11361558Srgrimes if (debug) 113737663Scharnier warnx("adding a default entry"); 11381558Srgrimes 11391558Srgrimes /* 11401558Srgrimes * Don't allow a network export coincide with a list of 11411558Srgrimes * host(s) on the same line. 11421558Srgrimes */ 11431558Srgrimes } else if ((opt_flags & OP_NET) && tgrp->gr_next) { 114475801Siedowse syslog(LOG_ERR, "network/host conflict"); 11451558Srgrimes getexp_err(ep, tgrp); 11461558Srgrimes goto nextline; 114729317Sjlemon 114874462Salfred /* 114974462Salfred * If an export list was specified on this line, make sure 115029317Sjlemon * that we have at least one valid entry, otherwise skip it. 115129317Sjlemon */ 115229317Sjlemon } else { 115329317Sjlemon grp = tgrp; 115474462Salfred while (grp && grp->gr_type == GT_IGNORE) 115529317Sjlemon grp = grp->gr_next; 115629317Sjlemon if (! grp) { 115729317Sjlemon getexp_err(ep, tgrp); 115829317Sjlemon goto nextline; 115929317Sjlemon } 11601558Srgrimes } 11611558Srgrimes 11621558Srgrimes /* 11631558Srgrimes * Loop through hosts, pushing the exports into the kernel. 11641558Srgrimes * After loop, tgrp points to the start of the list and 11651558Srgrimes * grp points to the last entry in the list. 11661558Srgrimes */ 11671558Srgrimes grp = tgrp; 11681558Srgrimes do { 116975635Siedowse if (do_mount(ep, grp, exflags, &anon, dirp, dirplen, 117075635Siedowse &fsb)) { 117175635Siedowse getexp_err(ep, tgrp); 117275635Siedowse goto nextline; 117375635Siedowse } 11741558Srgrimes } while (grp->gr_next && (grp = grp->gr_next)); 11751558Srgrimes 11761558Srgrimes /* 11771558Srgrimes * Success. Update the data structures. 11781558Srgrimes */ 11791558Srgrimes if (has_host) { 11809336Sdfr hang_dirp(dirhead, tgrp, ep, opt_flags); 11811558Srgrimes grp->gr_next = grphead; 11821558Srgrimes grphead = tgrp; 11831558Srgrimes } else { 11841558Srgrimes hang_dirp(dirhead, (struct grouplist *)NULL, ep, 11859336Sdfr opt_flags); 11861558Srgrimes free_grp(grp); 11871558Srgrimes } 11881558Srgrimes dirhead = (struct dirlist *)NULL; 11891558Srgrimes if ((ep->ex_flag & EX_LINKED) == 0) { 11901558Srgrimes ep2 = exphead; 11911558Srgrimes epp = &exphead; 11921558Srgrimes 11931558Srgrimes /* 11941558Srgrimes * Insert in the list in alphabetical order. 11951558Srgrimes */ 11961558Srgrimes while (ep2 && strcmp(ep2->ex_fsdir, ep->ex_fsdir) < 0) { 11971558Srgrimes epp = &ep2->ex_next; 11981558Srgrimes ep2 = ep2->ex_next; 11991558Srgrimes } 12001558Srgrimes if (ep2) 12011558Srgrimes ep->ex_next = ep2; 12021558Srgrimes *epp = ep; 12031558Srgrimes ep->ex_flag |= EX_LINKED; 12041558Srgrimes } 12051558Srgrimesnextline: 12061558Srgrimes if (dirhead) { 12071558Srgrimes free_dir(dirhead); 12081558Srgrimes dirhead = (struct dirlist *)NULL; 12091558Srgrimes } 12101558Srgrimes } 12111558Srgrimes fclose(exp_file); 12121558Srgrimes} 12131558Srgrimes 12141558Srgrimes/* 12151558Srgrimes * Allocate an export list element 12161558Srgrimes */ 12171558Srgrimesstruct exportlist * 12181558Srgrimesget_exp() 12191558Srgrimes{ 12201558Srgrimes struct exportlist *ep; 12211558Srgrimes 12221558Srgrimes ep = (struct exportlist *)malloc(sizeof (struct exportlist)); 12231558Srgrimes if (ep == (struct exportlist *)NULL) 12241558Srgrimes out_of_mem(); 122523681Speter memset(ep, 0, sizeof(struct exportlist)); 12261558Srgrimes return (ep); 12271558Srgrimes} 12281558Srgrimes 12291558Srgrimes/* 12301558Srgrimes * Allocate a group list element 12311558Srgrimes */ 12321558Srgrimesstruct grouplist * 12331558Srgrimesget_grp() 12341558Srgrimes{ 12351558Srgrimes struct grouplist *gp; 12361558Srgrimes 12371558Srgrimes gp = (struct grouplist *)malloc(sizeof (struct grouplist)); 12381558Srgrimes if (gp == (struct grouplist *)NULL) 12391558Srgrimes out_of_mem(); 124023681Speter memset(gp, 0, sizeof(struct grouplist)); 12411558Srgrimes return (gp); 12421558Srgrimes} 12431558Srgrimes 12441558Srgrimes/* 12451558Srgrimes * Clean up upon an error in get_exportlist(). 12461558Srgrimes */ 12471558Srgrimesvoid 12481558Srgrimesgetexp_err(ep, grp) 12491558Srgrimes struct exportlist *ep; 12501558Srgrimes struct grouplist *grp; 12511558Srgrimes{ 12521558Srgrimes struct grouplist *tgrp; 12531558Srgrimes 1254100336Sjoerg if (!(opt_flags & OP_QUIET)) 1255100336Sjoerg syslog(LOG_ERR, "bad exports list line %s", line); 12561558Srgrimes if (ep && (ep->ex_flag & EX_LINKED) == 0) 12571558Srgrimes free_exp(ep); 12581558Srgrimes while (grp) { 12591558Srgrimes tgrp = grp; 12601558Srgrimes grp = grp->gr_next; 12611558Srgrimes free_grp(tgrp); 12621558Srgrimes } 12631558Srgrimes} 12641558Srgrimes 12651558Srgrimes/* 12661558Srgrimes * Search the export list for a matching fs. 12671558Srgrimes */ 12681558Srgrimesstruct exportlist * 12691558Srgrimesex_search(fsid) 12701558Srgrimes fsid_t *fsid; 12711558Srgrimes{ 12721558Srgrimes struct exportlist *ep; 12731558Srgrimes 12741558Srgrimes ep = exphead; 12751558Srgrimes while (ep) { 12761558Srgrimes if (ep->ex_fs.val[0] == fsid->val[0] && 12771558Srgrimes ep->ex_fs.val[1] == fsid->val[1]) 12781558Srgrimes return (ep); 12791558Srgrimes ep = ep->ex_next; 12801558Srgrimes } 12811558Srgrimes return (ep); 12821558Srgrimes} 12831558Srgrimes 12841558Srgrimes/* 12851558Srgrimes * Add a directory path to the list. 12861558Srgrimes */ 12871558Srgrimeschar * 12881558Srgrimesadd_expdir(dpp, cp, len) 12891558Srgrimes struct dirlist **dpp; 12901558Srgrimes char *cp; 12911558Srgrimes int len; 12921558Srgrimes{ 12931558Srgrimes struct dirlist *dp; 12941558Srgrimes 12951558Srgrimes dp = (struct dirlist *)malloc(sizeof (struct dirlist) + len); 129637663Scharnier if (dp == (struct dirlist *)NULL) 129737663Scharnier out_of_mem(); 12981558Srgrimes dp->dp_left = *dpp; 12991558Srgrimes dp->dp_right = (struct dirlist *)NULL; 13001558Srgrimes dp->dp_flag = 0; 13011558Srgrimes dp->dp_hosts = (struct hostlist *)NULL; 13021558Srgrimes strcpy(dp->dp_dirp, cp); 13031558Srgrimes *dpp = dp; 13041558Srgrimes return (dp->dp_dirp); 13051558Srgrimes} 13061558Srgrimes 13071558Srgrimes/* 13081558Srgrimes * Hang the dir list element off the dirpath binary tree as required 13091558Srgrimes * and update the entry for host. 13101558Srgrimes */ 13111558Srgrimesvoid 13129336Sdfrhang_dirp(dp, grp, ep, flags) 13131558Srgrimes struct dirlist *dp; 13141558Srgrimes struct grouplist *grp; 13151558Srgrimes struct exportlist *ep; 13169336Sdfr int flags; 13171558Srgrimes{ 13181558Srgrimes struct hostlist *hp; 13191558Srgrimes struct dirlist *dp2; 13201558Srgrimes 13219336Sdfr if (flags & OP_ALLDIRS) { 13221558Srgrimes if (ep->ex_defdir) 13231558Srgrimes free((caddr_t)dp); 13241558Srgrimes else 13251558Srgrimes ep->ex_defdir = dp; 13269336Sdfr if (grp == (struct grouplist *)NULL) { 13271558Srgrimes ep->ex_defdir->dp_flag |= DP_DEFSET; 13289336Sdfr } else while (grp) { 13291558Srgrimes hp = get_ht(); 13301558Srgrimes hp->ht_grp = grp; 13311558Srgrimes hp->ht_next = ep->ex_defdir->dp_hosts; 13321558Srgrimes ep->ex_defdir->dp_hosts = hp; 13331558Srgrimes grp = grp->gr_next; 13341558Srgrimes } 13351558Srgrimes } else { 13361558Srgrimes 13371558Srgrimes /* 133837663Scharnier * Loop through the directories adding them to the tree. 13391558Srgrimes */ 13401558Srgrimes while (dp) { 13411558Srgrimes dp2 = dp->dp_left; 13429336Sdfr add_dlist(&ep->ex_dirl, dp, grp, flags); 13431558Srgrimes dp = dp2; 13441558Srgrimes } 13451558Srgrimes } 13461558Srgrimes} 13471558Srgrimes 13481558Srgrimes/* 13491558Srgrimes * Traverse the binary tree either updating a node that is already there 13501558Srgrimes * for the new directory or adding the new node. 13511558Srgrimes */ 13521558Srgrimesvoid 13539336Sdfradd_dlist(dpp, newdp, grp, flags) 13541558Srgrimes struct dirlist **dpp; 13551558Srgrimes struct dirlist *newdp; 13561558Srgrimes struct grouplist *grp; 13579336Sdfr int flags; 13581558Srgrimes{ 13591558Srgrimes struct dirlist *dp; 13601558Srgrimes struct hostlist *hp; 13611558Srgrimes int cmp; 13621558Srgrimes 13631558Srgrimes dp = *dpp; 13641558Srgrimes if (dp) { 13651558Srgrimes cmp = strcmp(dp->dp_dirp, newdp->dp_dirp); 13661558Srgrimes if (cmp > 0) { 13679336Sdfr add_dlist(&dp->dp_left, newdp, grp, flags); 13681558Srgrimes return; 13691558Srgrimes } else if (cmp < 0) { 13709336Sdfr add_dlist(&dp->dp_right, newdp, grp, flags); 13711558Srgrimes return; 13721558Srgrimes } else 13731558Srgrimes free((caddr_t)newdp); 13741558Srgrimes } else { 13751558Srgrimes dp = newdp; 13761558Srgrimes dp->dp_left = (struct dirlist *)NULL; 13771558Srgrimes *dpp = dp; 13781558Srgrimes } 13791558Srgrimes if (grp) { 13801558Srgrimes 13811558Srgrimes /* 13821558Srgrimes * Hang all of the host(s) off of the directory point. 13831558Srgrimes */ 13841558Srgrimes do { 13851558Srgrimes hp = get_ht(); 13861558Srgrimes hp->ht_grp = grp; 13871558Srgrimes hp->ht_next = dp->dp_hosts; 13881558Srgrimes dp->dp_hosts = hp; 13891558Srgrimes grp = grp->gr_next; 13901558Srgrimes } while (grp); 13919336Sdfr } else { 13921558Srgrimes dp->dp_flag |= DP_DEFSET; 13939336Sdfr } 13941558Srgrimes} 13951558Srgrimes 13961558Srgrimes/* 13971558Srgrimes * Search for a dirpath on the export point. 13981558Srgrimes */ 13991558Srgrimesstruct dirlist * 140074462Salfreddirp_search(dp, dirp) 14011558Srgrimes struct dirlist *dp; 140274462Salfred char *dirp; 14031558Srgrimes{ 14041558Srgrimes int cmp; 14051558Srgrimes 14061558Srgrimes if (dp) { 140774462Salfred cmp = strcmp(dp->dp_dirp, dirp); 14081558Srgrimes if (cmp > 0) 140974462Salfred return (dirp_search(dp->dp_left, dirp)); 14101558Srgrimes else if (cmp < 0) 141174462Salfred return (dirp_search(dp->dp_right, dirp)); 14121558Srgrimes else 14131558Srgrimes return (dp); 14141558Srgrimes } 14151558Srgrimes return (dp); 14161558Srgrimes} 14171558Srgrimes 14181558Srgrimes/* 14191558Srgrimes * Scan for a host match in a directory tree. 14201558Srgrimes */ 14211558Srgrimesint 14229336Sdfrchk_host(dp, saddr, defsetp, hostsetp) 14231558Srgrimes struct dirlist *dp; 142474462Salfred struct sockaddr *saddr; 14251558Srgrimes int *defsetp; 14269336Sdfr int *hostsetp; 14271558Srgrimes{ 14281558Srgrimes struct hostlist *hp; 14291558Srgrimes struct grouplist *grp; 143074462Salfred struct addrinfo *ai; 14311558Srgrimes 14321558Srgrimes if (dp) { 14331558Srgrimes if (dp->dp_flag & DP_DEFSET) 14349336Sdfr *defsetp = dp->dp_flag; 14351558Srgrimes hp = dp->dp_hosts; 14361558Srgrimes while (hp) { 14371558Srgrimes grp = hp->ht_grp; 14381558Srgrimes switch (grp->gr_type) { 14391558Srgrimes case GT_HOST: 144074462Salfred ai = grp->gr_ptr.gt_addrinfo; 144174462Salfred for (; ai; ai = ai->ai_next) { 144275801Siedowse if (!sacmp(ai->ai_addr, saddr, NULL)) { 144374462Salfred *hostsetp = 144474462Salfred (hp->ht_flag | DP_HOSTSET); 144574462Salfred return (1); 144674462Salfred } 14479336Sdfr } 144875801Siedowse break; 14491558Srgrimes case GT_NET: 145075801Siedowse if (!sacmp(saddr, (struct sockaddr *) 145175801Siedowse &grp->gr_ptr.gt_net.nt_net, 145275801Siedowse (struct sockaddr *) 145375801Siedowse &grp->gr_ptr.gt_net.nt_mask)) { 145474462Salfred *hostsetp = (hp->ht_flag | DP_HOSTSET); 145574462Salfred return (1); 145674462Salfred } 145775801Siedowse break; 145875801Siedowse } 14591558Srgrimes hp = hp->ht_next; 14601558Srgrimes } 14611558Srgrimes } 14621558Srgrimes return (0); 14631558Srgrimes} 14641558Srgrimes 14651558Srgrimes/* 14661558Srgrimes * Scan tree for a host that matches the address. 14671558Srgrimes */ 14681558Srgrimesint 14691558Srgrimesscan_tree(dp, saddr) 14701558Srgrimes struct dirlist *dp; 147174462Salfred struct sockaddr *saddr; 14721558Srgrimes{ 14739336Sdfr int defset, hostset; 14741558Srgrimes 14751558Srgrimes if (dp) { 14761558Srgrimes if (scan_tree(dp->dp_left, saddr)) 14771558Srgrimes return (1); 14789336Sdfr if (chk_host(dp, saddr, &defset, &hostset)) 14791558Srgrimes return (1); 14801558Srgrimes if (scan_tree(dp->dp_right, saddr)) 14811558Srgrimes return (1); 14821558Srgrimes } 14831558Srgrimes return (0); 14841558Srgrimes} 14851558Srgrimes 14861558Srgrimes/* 14871558Srgrimes * Traverse the dirlist tree and free it up. 14881558Srgrimes */ 14891558Srgrimesvoid 14901558Srgrimesfree_dir(dp) 14911558Srgrimes struct dirlist *dp; 14921558Srgrimes{ 14931558Srgrimes 14941558Srgrimes if (dp) { 14951558Srgrimes free_dir(dp->dp_left); 14961558Srgrimes free_dir(dp->dp_right); 14971558Srgrimes free_host(dp->dp_hosts); 14981558Srgrimes free((caddr_t)dp); 14991558Srgrimes } 15001558Srgrimes} 15011558Srgrimes 15021558Srgrimes/* 15031558Srgrimes * Parse the option string and update fields. 15041558Srgrimes * Option arguments may either be -<option>=<value> or 15051558Srgrimes * -<option> <value> 15061558Srgrimes */ 15071558Srgrimesint 15081558Srgrimesdo_opt(cpp, endcpp, ep, grp, has_hostp, exflagsp, cr) 15091558Srgrimes char **cpp, **endcpp; 15101558Srgrimes struct exportlist *ep; 15111558Srgrimes struct grouplist *grp; 15121558Srgrimes int *has_hostp; 15131558Srgrimes int *exflagsp; 151472650Sgreen struct xucred *cr; 15151558Srgrimes{ 15161558Srgrimes char *cpoptarg, *cpoptend; 15171558Srgrimes char *cp, *endcp, *cpopt, savedc, savedc2; 15181558Srgrimes int allflag, usedarg; 15191558Srgrimes 152051968Salfred savedc2 = '\0'; 15211558Srgrimes cpopt = *cpp; 15221558Srgrimes cpopt++; 15231558Srgrimes cp = *endcpp; 15241558Srgrimes savedc = *cp; 15251558Srgrimes *cp = '\0'; 15261558Srgrimes while (cpopt && *cpopt) { 15271558Srgrimes allflag = 1; 15281558Srgrimes usedarg = -2; 152937663Scharnier if ((cpoptend = strchr(cpopt, ','))) { 15301558Srgrimes *cpoptend++ = '\0'; 153137663Scharnier if ((cpoptarg = strchr(cpopt, '='))) 15321558Srgrimes *cpoptarg++ = '\0'; 15331558Srgrimes } else { 153437663Scharnier if ((cpoptarg = strchr(cpopt, '='))) 15351558Srgrimes *cpoptarg++ = '\0'; 15361558Srgrimes else { 15371558Srgrimes *cp = savedc; 15381558Srgrimes nextfield(&cp, &endcp); 15391558Srgrimes **endcpp = '\0'; 15401558Srgrimes if (endcp > cp && *cp != '-') { 15411558Srgrimes cpoptarg = cp; 15421558Srgrimes savedc2 = *endcp; 15431558Srgrimes *endcp = '\0'; 15441558Srgrimes usedarg = 0; 15451558Srgrimes } 15461558Srgrimes } 15471558Srgrimes } 15481558Srgrimes if (!strcmp(cpopt, "ro") || !strcmp(cpopt, "o")) { 15491558Srgrimes *exflagsp |= MNT_EXRDONLY; 15501558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "maproot") || 15511558Srgrimes !(allflag = strcmp(cpopt, "mapall")) || 15521558Srgrimes !strcmp(cpopt, "root") || !strcmp(cpopt, "r"))) { 15531558Srgrimes usedarg++; 15541558Srgrimes parsecred(cpoptarg, cr); 15551558Srgrimes if (allflag == 0) { 15561558Srgrimes *exflagsp |= MNT_EXPORTANON; 15571558Srgrimes opt_flags |= OP_MAPALL; 15581558Srgrimes } else 15591558Srgrimes opt_flags |= OP_MAPROOT; 15601558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "mask") || 156175801Siedowse !strcmp(cpopt, "m"))) { 15621558Srgrimes if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 1)) { 156337663Scharnier syslog(LOG_ERR, "bad mask: %s", cpoptarg); 15641558Srgrimes return (1); 15651558Srgrimes } 15661558Srgrimes usedarg++; 15671558Srgrimes opt_flags |= OP_MASK; 15681558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "network") || 15691558Srgrimes !strcmp(cpopt, "n"))) { 157074462Salfred if (strchr(cpoptarg, '/') != NULL) { 157174462Salfred if (debug) 157274462Salfred fprintf(stderr, "setting OP_MASKLEN\n"); 157374462Salfred opt_flags |= OP_MASKLEN; 157474462Salfred } 15751558Srgrimes if (grp->gr_type != GT_NULL) { 157637663Scharnier syslog(LOG_ERR, "network/host conflict"); 15771558Srgrimes return (1); 15781558Srgrimes } else if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 0)) { 157937663Scharnier syslog(LOG_ERR, "bad net: %s", cpoptarg); 15801558Srgrimes return (1); 15811558Srgrimes } 15821558Srgrimes grp->gr_type = GT_NET; 15831558Srgrimes *has_hostp = 1; 15841558Srgrimes usedarg++; 15851558Srgrimes opt_flags |= OP_NET; 15861558Srgrimes } else if (!strcmp(cpopt, "alldirs")) { 15871558Srgrimes opt_flags |= OP_ALLDIRS; 158827447Sdfr } else if (!strcmp(cpopt, "public")) { 158927447Sdfr *exflagsp |= MNT_EXPUBLIC; 159027447Sdfr } else if (!strcmp(cpopt, "webnfs")) { 159127447Sdfr *exflagsp |= (MNT_EXPUBLIC|MNT_EXRDONLY|MNT_EXPORTANON); 159227447Sdfr opt_flags |= OP_MAPALL; 159327447Sdfr } else if (cpoptarg && !strcmp(cpopt, "index")) { 159427447Sdfr ep->ex_indexfile = strdup(cpoptarg); 1595100336Sjoerg } else if (!strcmp(cpopt, "quiet")) { 1596100336Sjoerg opt_flags |= OP_QUIET; 15971558Srgrimes } else { 159837663Scharnier syslog(LOG_ERR, "bad opt %s", cpopt); 15991558Srgrimes return (1); 16001558Srgrimes } 16011558Srgrimes if (usedarg >= 0) { 16021558Srgrimes *endcp = savedc2; 16031558Srgrimes **endcpp = savedc; 16041558Srgrimes if (usedarg > 0) { 16051558Srgrimes *cpp = cp; 16061558Srgrimes *endcpp = endcp; 16071558Srgrimes } 16081558Srgrimes return (0); 16091558Srgrimes } 16101558Srgrimes cpopt = cpoptend; 16111558Srgrimes } 16121558Srgrimes **endcpp = savedc; 16131558Srgrimes return (0); 16141558Srgrimes} 16151558Srgrimes 16161558Srgrimes/* 16171558Srgrimes * Translate a character string to the corresponding list of network 16181558Srgrimes * addresses for a hostname. 16191558Srgrimes */ 16201558Srgrimesint 16217401Swpaulget_host(cp, grp, tgrp) 16221558Srgrimes char *cp; 16231558Srgrimes struct grouplist *grp; 16247401Swpaul struct grouplist *tgrp; 16251558Srgrimes{ 16267401Swpaul struct grouplist *checkgrp; 162775635Siedowse struct addrinfo *ai, *tai, hints; 162874462Salfred int ecode; 162974462Salfred char host[NI_MAXHOST]; 16301558Srgrimes 163174462Salfred if (grp->gr_type != GT_NULL) { 163274462Salfred syslog(LOG_ERR, "Bad netgroup type for ip host %s", cp); 16331558Srgrimes return (1); 16341558Srgrimes } 163574462Salfred memset(&hints, 0, sizeof hints); 163674462Salfred hints.ai_flags = AI_CANONNAME; 163774462Salfred hints.ai_protocol = IPPROTO_UDP; 163874462Salfred ecode = getaddrinfo(cp, NULL, &hints, &ai); 163974462Salfred if (ecode != 0) { 164075635Siedowse syslog(LOG_ERR,"can't get address info for host %s", cp); 164174462Salfred return 1; 164274462Salfred } 164374462Salfred grp->gr_ptr.gt_addrinfo = ai; 164474462Salfred while (ai != NULL) { 164574462Salfred if (ai->ai_canonname == NULL) { 164674462Salfred if (getnameinfo(ai->ai_addr, ai->ai_addrlen, host, 164774462Salfred sizeof host, NULL, 0, ninumeric) != 0) 164874462Salfred strlcpy(host, "?", sizeof(host)); 164974462Salfred ai->ai_canonname = strdup(host); 165074462Salfred ai->ai_flags |= AI_CANONNAME; 165175641Siedowse } 165274462Salfred if (debug) 165375635Siedowse fprintf(stderr, "got host %s\n", ai->ai_canonname); 165475635Siedowse /* 165575635Siedowse * Sanity check: make sure we don't already have an entry 165675635Siedowse * for this host in the grouplist. 165775635Siedowse */ 165875635Siedowse for (checkgrp = tgrp; checkgrp != NULL; 165975635Siedowse checkgrp = checkgrp->gr_next) { 166075635Siedowse if (checkgrp->gr_type != GT_HOST) 166175635Siedowse continue; 166275635Siedowse for (tai = checkgrp->gr_ptr.gt_addrinfo; tai != NULL; 166375635Siedowse tai = tai->ai_next) { 166475801Siedowse if (sacmp(tai->ai_addr, ai->ai_addr, NULL) != 0) 166575635Siedowse continue; 166675635Siedowse if (debug) 166775635Siedowse fprintf(stderr, 166875635Siedowse "ignoring duplicate host %s\n", 166975635Siedowse ai->ai_canonname); 167075635Siedowse grp->gr_type = GT_IGNORE; 167175635Siedowse return (0); 167275635Siedowse } 167375635Siedowse } 167474462Salfred ai = ai->ai_next; 16751558Srgrimes } 167675635Siedowse grp->gr_type = GT_HOST; 16771558Srgrimes return (0); 16781558Srgrimes} 16791558Srgrimes 16801558Srgrimes/* 16811558Srgrimes * Free up an exports list component 16821558Srgrimes */ 16831558Srgrimesvoid 16841558Srgrimesfree_exp(ep) 16851558Srgrimes struct exportlist *ep; 16861558Srgrimes{ 16871558Srgrimes 16881558Srgrimes if (ep->ex_defdir) { 16891558Srgrimes free_host(ep->ex_defdir->dp_hosts); 16901558Srgrimes free((caddr_t)ep->ex_defdir); 16911558Srgrimes } 16921558Srgrimes if (ep->ex_fsdir) 16931558Srgrimes free(ep->ex_fsdir); 169427447Sdfr if (ep->ex_indexfile) 169527447Sdfr free(ep->ex_indexfile); 16961558Srgrimes free_dir(ep->ex_dirl); 16971558Srgrimes free((caddr_t)ep); 16981558Srgrimes} 16991558Srgrimes 17001558Srgrimes/* 17011558Srgrimes * Free hosts. 17021558Srgrimes */ 17031558Srgrimesvoid 17041558Srgrimesfree_host(hp) 17051558Srgrimes struct hostlist *hp; 17061558Srgrimes{ 17071558Srgrimes struct hostlist *hp2; 17081558Srgrimes 17091558Srgrimes while (hp) { 17101558Srgrimes hp2 = hp; 17111558Srgrimes hp = hp->ht_next; 17121558Srgrimes free((caddr_t)hp2); 17131558Srgrimes } 17141558Srgrimes} 17151558Srgrimes 17161558Srgrimesstruct hostlist * 17171558Srgrimesget_ht() 17181558Srgrimes{ 17191558Srgrimes struct hostlist *hp; 17201558Srgrimes 17211558Srgrimes hp = (struct hostlist *)malloc(sizeof (struct hostlist)); 17221558Srgrimes if (hp == (struct hostlist *)NULL) 17231558Srgrimes out_of_mem(); 17241558Srgrimes hp->ht_next = (struct hostlist *)NULL; 17259336Sdfr hp->ht_flag = 0; 17261558Srgrimes return (hp); 17271558Srgrimes} 17281558Srgrimes 17291558Srgrimes/* 17301558Srgrimes * Out of memory, fatal 17311558Srgrimes */ 17321558Srgrimesvoid 17331558Srgrimesout_of_mem() 17341558Srgrimes{ 17351558Srgrimes 173637663Scharnier syslog(LOG_ERR, "out of memory"); 17371558Srgrimes exit(2); 17381558Srgrimes} 17391558Srgrimes 17401558Srgrimes/* 17411558Srgrimes * Do the mount syscall with the update flag to push the export info into 17421558Srgrimes * the kernel. 17431558Srgrimes */ 17441558Srgrimesint 17451558Srgrimesdo_mount(ep, grp, exflags, anoncrp, dirp, dirplen, fsb) 17461558Srgrimes struct exportlist *ep; 17471558Srgrimes struct grouplist *grp; 17481558Srgrimes int exflags; 174972650Sgreen struct xucred *anoncrp; 17501558Srgrimes char *dirp; 17511558Srgrimes int dirplen; 17521558Srgrimes struct statfs *fsb; 17531558Srgrimes{ 175475841Siedowse struct statfs fsb1; 175574462Salfred struct addrinfo *ai; 175675801Siedowse struct export_args *eap; 175774462Salfred char *cp = NULL; 17581558Srgrimes int done; 17591558Srgrimes char savedc = '\0'; 17601558Srgrimes union { 17611558Srgrimes struct ufs_args ua; 17621558Srgrimes struct iso_args ia; 17639336Sdfr struct msdosfs_args da; 176454093Ssemenu struct ntfs_args na; 17651558Srgrimes } args; 17661558Srgrimes 176775801Siedowse bzero(&args, sizeof args); 176875801Siedowse /* XXX, we assume that all xx_args look like ufs_args. */ 17691558Srgrimes args.ua.fspec = 0; 177075801Siedowse eap = &args.ua.export; 177175801Siedowse 177275801Siedowse eap->ex_flags = exflags; 177375801Siedowse eap->ex_anon = *anoncrp; 177475801Siedowse eap->ex_indexfile = ep->ex_indexfile; 177575641Siedowse if (grp->gr_type == GT_HOST) 177674462Salfred ai = grp->gr_ptr.gt_addrinfo; 177775641Siedowse else 177875641Siedowse ai = NULL; 17791558Srgrimes done = FALSE; 17801558Srgrimes while (!done) { 17811558Srgrimes switch (grp->gr_type) { 17821558Srgrimes case GT_HOST: 178375641Siedowse if (ai->ai_addr->sa_family == AF_INET6 && have_v6 == 0) 178474462Salfred goto skip; 178575801Siedowse eap->ex_addr = ai->ai_addr; 178675801Siedowse eap->ex_addrlen = ai->ai_addrlen; 178775801Siedowse eap->ex_masklen = 0; 17881558Srgrimes break; 17891558Srgrimes case GT_NET: 179075801Siedowse if (grp->gr_ptr.gt_net.nt_net.ss_family == AF_INET6 && 179174462Salfred have_v6 == 0) 179274462Salfred goto skip; 179375801Siedowse eap->ex_addr = 179475801Siedowse (struct sockaddr *)&grp->gr_ptr.gt_net.nt_net; 179575801Siedowse eap->ex_addrlen = args.ua.export.ex_addr->sa_len; 179675801Siedowse eap->ex_mask = 179775801Siedowse (struct sockaddr *)&grp->gr_ptr.gt_net.nt_mask; 179875801Siedowse eap->ex_masklen = args.ua.export.ex_mask->sa_len; 17991558Srgrimes break; 180075641Siedowse case GT_DEFAULT: 180175801Siedowse eap->ex_addr = NULL; 180275801Siedowse eap->ex_addrlen = 0; 180375801Siedowse eap->ex_mask = NULL; 180475801Siedowse eap->ex_masklen = 0; 180575641Siedowse break; 18067401Swpaul case GT_IGNORE: 18077401Swpaul return(0); 18087401Swpaul break; 18091558Srgrimes default: 181037663Scharnier syslog(LOG_ERR, "bad grouptype"); 18111558Srgrimes if (cp) 18121558Srgrimes *cp = savedc; 18131558Srgrimes return (1); 18141558Srgrimes }; 18151558Srgrimes 18161558Srgrimes /* 18171558Srgrimes * XXX: 18181558Srgrimes * Maybe I should just use the fsb->f_mntonname path instead 18191558Srgrimes * of looping back up the dirp to the mount point?? 18201558Srgrimes * Also, needs to know how to export all types of local 182196707Strhodes * exportable filesystems and not just "ufs". 18221558Srgrimes */ 18239336Sdfr while (mount(fsb->f_fstypename, dirp, 182474462Salfred fsb->f_flags | MNT_UPDATE, (caddr_t)&args) < 0) { 18251558Srgrimes if (cp) 18261558Srgrimes *cp-- = savedc; 18271558Srgrimes else 18281558Srgrimes cp = dirp + dirplen - 1; 1829100336Sjoerg if (opt_flags & OP_QUIET) 1830100336Sjoerg return (1); 18311558Srgrimes if (errno == EPERM) { 183275635Siedowse if (debug) 183375635Siedowse warnx("can't change attributes for %s", 183475635Siedowse dirp); 18351558Srgrimes syslog(LOG_ERR, 183637663Scharnier "can't change attributes for %s", dirp); 18371558Srgrimes return (1); 18381558Srgrimes } 18391558Srgrimes if (opt_flags & OP_ALLDIRS) { 1840100336Sjoerg if (errno == EINVAL) 1841100336Sjoerg syslog(LOG_ERR, 1842100336Sjoerg "-alldirs requested but %s is not a filesystem mountpoint", 1843100336Sjoerg dirp); 1844100336Sjoerg else 1845100336Sjoerg syslog(LOG_ERR, 1846100336Sjoerg "could not remount %s: %m", 1847100336Sjoerg dirp); 18481558Srgrimes return (1); 18491558Srgrimes } 18501558Srgrimes /* back up over the last component */ 18511558Srgrimes while (*cp == '/' && cp > dirp) 18521558Srgrimes cp--; 18531558Srgrimes while (*(cp - 1) != '/' && cp > dirp) 18541558Srgrimes cp--; 18551558Srgrimes if (cp == dirp) { 18561558Srgrimes if (debug) 185737663Scharnier warnx("mnt unsucc"); 185837663Scharnier syslog(LOG_ERR, "can't export %s", dirp); 18591558Srgrimes return (1); 18601558Srgrimes } 18611558Srgrimes savedc = *cp; 18621558Srgrimes *cp = '\0'; 186375841Siedowse /* Check that we're still on the same filesystem. */ 186475841Siedowse if (statfs(dirp, &fsb1) != 0 || bcmp(&fsb1.f_fsid, 186575841Siedowse &fsb->f_fsid, sizeof(fsb1.f_fsid)) != 0) { 186675841Siedowse *cp = savedc; 186775841Siedowse syslog(LOG_ERR, "can't export %s", dirp); 186875841Siedowse return (1); 186975841Siedowse } 18701558Srgrimes } 187174462Salfredskip: 187275641Siedowse if (ai != NULL) 187374462Salfred ai = ai->ai_next; 187475641Siedowse if (ai == NULL) 18751558Srgrimes done = TRUE; 18761558Srgrimes } 18771558Srgrimes if (cp) 18781558Srgrimes *cp = savedc; 18791558Srgrimes return (0); 18801558Srgrimes} 18811558Srgrimes 18821558Srgrimes/* 18831558Srgrimes * Translate a net address. 188475801Siedowse * 188575801Siedowse * If `maskflg' is nonzero, then `cp' is a netmask, not a network address. 18861558Srgrimes */ 18871558Srgrimesint 18881558Srgrimesget_net(cp, net, maskflg) 18891558Srgrimes char *cp; 18901558Srgrimes struct netmsk *net; 18911558Srgrimes int maskflg; 18921558Srgrimes{ 189375861Siedowse struct netent *np = NULL; 189474462Salfred char *name, *p, *prefp; 189575801Siedowse struct sockaddr_in sin; 189675861Siedowse struct sockaddr *sa = NULL; 189774462Salfred struct addrinfo hints, *ai = NULL; 189874462Salfred char netname[NI_MAXHOST]; 189974462Salfred long preflen; 19001558Srgrimes 190175635Siedowse p = prefp = NULL; 190274462Salfred if ((opt_flags & OP_MASKLEN) && !maskflg) { 190374462Salfred p = strchr(cp, '/'); 190474462Salfred *p = '\0'; 190574462Salfred prefp = p + 1; 190674462Salfred } 190774462Salfred 190875861Siedowse /* 190975861Siedowse * Check for a numeric address first. We wish to avoid 191075861Siedowse * possible DNS lookups in getnetbyname(). 191175861Siedowse */ 191275861Siedowse if (isxdigit(*cp) || *cp == ':') { 191374462Salfred memset(&hints, 0, sizeof hints); 191475801Siedowse /* Ensure the mask and the network have the same family. */ 191575801Siedowse if (maskflg && (opt_flags & OP_NET)) 191675801Siedowse hints.ai_family = net->nt_net.ss_family; 191775801Siedowse else if (!maskflg && (opt_flags & OP_HAVEMASK)) 191875801Siedowse hints.ai_family = net->nt_mask.ss_family; 191975801Siedowse else 192075801Siedowse hints.ai_family = AF_UNSPEC; 192174462Salfred hints.ai_flags = AI_NUMERICHOST; 192275861Siedowse if (getaddrinfo(cp, NULL, &hints, &ai) == 0) 192375861Siedowse sa = ai->ai_addr; 192475861Siedowse if (sa != NULL && ai->ai_family == AF_INET) { 192574462Salfred /* 192675801Siedowse * The address in `cp' is really a network address, so 192775801Siedowse * use inet_network() to re-interpret this correctly. 192875801Siedowse * e.g. "127.1" means 127.1.0.0, not 127.0.0.1. 192974462Salfred */ 193075801Siedowse bzero(&sin, sizeof sin); 193174462Salfred sin.sin_family = AF_INET; 193274462Salfred sin.sin_len = sizeof sin; 193375801Siedowse sin.sin_addr = inet_makeaddr(inet_network(cp), 0); 193474462Salfred if (debug) 193575801Siedowse fprintf(stderr, "get_net: v4 addr %s\n", 193675801Siedowse inet_ntoa(sin.sin_addr)); 193774462Salfred sa = (struct sockaddr *)&sin; 193875861Siedowse } 193975861Siedowse } 194075861Siedowse if (sa == NULL && (np = getnetbyname(cp)) != NULL) { 194175861Siedowse bzero(&sin, sizeof sin); 194275861Siedowse sin.sin_family = AF_INET; 194375861Siedowse sin.sin_len = sizeof sin; 194475861Siedowse sin.sin_addr = inet_makeaddr(np->n_net, 0); 194575861Siedowse sa = (struct sockaddr *)&sin; 194675861Siedowse } 194775861Siedowse if (sa == NULL) 194874462Salfred goto fail; 194925318Spst 195075801Siedowse if (maskflg) { 195175801Siedowse /* The specified sockaddr is a mask. */ 195275801Siedowse if (checkmask(sa) != 0) 195375801Siedowse goto fail; 195475801Siedowse bcopy(sa, &net->nt_mask, sa->sa_len); 195575801Siedowse opt_flags |= OP_HAVEMASK; 195675801Siedowse } else { 195775801Siedowse /* The specified sockaddr is a network address. */ 195875801Siedowse bcopy(sa, &net->nt_net, sa->sa_len); 195974462Salfred 196075801Siedowse /* Get a network name for the export list. */ 196175801Siedowse if (np) { 196275801Siedowse name = np->n_name; 196375801Siedowse } else if (getnameinfo(sa, sa->sa_len, netname, sizeof netname, 196475801Siedowse NULL, 0, ninumeric) == 0) { 196575801Siedowse name = netname; 196675801Siedowse } else { 196775801Siedowse goto fail; 196875801Siedowse } 196975801Siedowse if ((net->nt_name = strdup(name)) == NULL) 197075801Siedowse out_of_mem(); 197175801Siedowse 197275801Siedowse /* 197375801Siedowse * Extract a mask from either a "/<masklen>" suffix, or 197475801Siedowse * from the class of an IPv4 address. 197575801Siedowse */ 197674462Salfred if (opt_flags & OP_MASKLEN) { 197774462Salfred preflen = strtol(prefp, NULL, 10); 197875801Siedowse if (preflen < 0L || preflen == LONG_MAX) 197974462Salfred goto fail; 198075801Siedowse bcopy(sa, &net->nt_mask, sa->sa_len); 198175801Siedowse if (makemask(&net->nt_mask, (int)preflen) != 0) 198275801Siedowse goto fail; 198375801Siedowse opt_flags |= OP_HAVEMASK; 198474462Salfred *p = '/'; 198575801Siedowse } else if (sa->sa_family == AF_INET && 198675801Siedowse (opt_flags & OP_MASK) == 0) { 198775801Siedowse in_addr_t addr; 198874462Salfred 198975801Siedowse addr = ((struct sockaddr_in *)sa)->sin_addr.s_addr; 199075801Siedowse if (IN_CLASSA(addr)) 199175801Siedowse preflen = 8; 199275801Siedowse else if (IN_CLASSB(addr)) 199375801Siedowse preflen = 16; 199475801Siedowse else if (IN_CLASSC(addr)) 199575801Siedowse preflen = 24; 199675801Siedowse else if (IN_CLASSD(addr)) 199775801Siedowse preflen = 28; 199875801Siedowse else 199975801Siedowse preflen = 32; /* XXX */ 200075801Siedowse 200175801Siedowse bcopy(sa, &net->nt_mask, sa->sa_len); 200275801Siedowse makemask(&net->nt_mask, (int)preflen); 200375801Siedowse opt_flags |= OP_HAVEMASK; 200474462Salfred } 200574462Salfred } 200674462Salfred 200774462Salfred if (ai) 200874462Salfred freeaddrinfo(ai); 200974462Salfred return 0; 201074462Salfred 201174462Salfredfail: 201274462Salfred if (ai) 201374462Salfred freeaddrinfo(ai); 201474462Salfred return 1; 20151558Srgrimes} 20161558Srgrimes 20171558Srgrimes/* 20181558Srgrimes * Parse out the next white space separated field 20191558Srgrimes */ 20201558Srgrimesvoid 20211558Srgrimesnextfield(cp, endcp) 20221558Srgrimes char **cp; 20231558Srgrimes char **endcp; 20241558Srgrimes{ 20251558Srgrimes char *p; 20261558Srgrimes 20271558Srgrimes p = *cp; 20281558Srgrimes while (*p == ' ' || *p == '\t') 20291558Srgrimes p++; 20301558Srgrimes if (*p == '\n' || *p == '\0') 20311558Srgrimes *cp = *endcp = p; 20321558Srgrimes else { 20331558Srgrimes *cp = p++; 20341558Srgrimes while (*p != ' ' && *p != '\t' && *p != '\n' && *p != '\0') 20351558Srgrimes p++; 20361558Srgrimes *endcp = p; 20371558Srgrimes } 20381558Srgrimes} 20391558Srgrimes 20401558Srgrimes/* 20411558Srgrimes * Get an exports file line. Skip over blank lines and handle line 20421558Srgrimes * continuations. 20431558Srgrimes */ 20441558Srgrimesint 20451558Srgrimesget_line() 20461558Srgrimes{ 20471558Srgrimes char *p, *cp; 204896622Siedowse size_t len; 20491558Srgrimes int totlen, cont_line; 20501558Srgrimes 20511558Srgrimes /* 20521558Srgrimes * Loop around ignoring blank lines and getting all continuation lines. 20531558Srgrimes */ 20541558Srgrimes p = line; 20551558Srgrimes totlen = 0; 20561558Srgrimes do { 205796622Siedowse if ((p = fgetln(exp_file, &len)) == NULL) 20581558Srgrimes return (0); 20591558Srgrimes cp = p + len - 1; 20601558Srgrimes cont_line = 0; 20611558Srgrimes while (cp >= p && 20621558Srgrimes (*cp == ' ' || *cp == '\t' || *cp == '\n' || *cp == '\\')) { 20631558Srgrimes if (*cp == '\\') 20641558Srgrimes cont_line = 1; 20651558Srgrimes cp--; 20661558Srgrimes len--; 20671558Srgrimes } 206879117Sdd if (cont_line) { 206979117Sdd *++cp = ' '; 207079117Sdd len++; 207179117Sdd } 207296622Siedowse if (linesize < len + totlen + 1) { 207396622Siedowse linesize = len + totlen + 1; 207496622Siedowse line = realloc(line, linesize); 207596622Siedowse if (line == NULL) 207696622Siedowse out_of_mem(); 20771558Srgrimes } 207896622Siedowse memcpy(line + totlen, p, len); 207996622Siedowse totlen += len; 208096622Siedowse line[totlen] = '\0'; 20811558Srgrimes } while (totlen == 0 || cont_line); 20821558Srgrimes return (1); 20831558Srgrimes} 20841558Srgrimes 20851558Srgrimes/* 20861558Srgrimes * Parse a description of a credential. 20871558Srgrimes */ 20881558Srgrimesvoid 20891558Srgrimesparsecred(namelist, cr) 20901558Srgrimes char *namelist; 209172650Sgreen struct xucred *cr; 20921558Srgrimes{ 20931558Srgrimes char *name; 20941558Srgrimes int cnt; 20951558Srgrimes char *names; 20961558Srgrimes struct passwd *pw; 20971558Srgrimes struct group *gr; 20981558Srgrimes int ngroups, groups[NGROUPS + 1]; 20991558Srgrimes 210091354Sdd cr->cr_version = XUCRED_VERSION; 21011558Srgrimes /* 210237663Scharnier * Set up the unprivileged user. 21031558Srgrimes */ 21041558Srgrimes cr->cr_uid = -2; 21051558Srgrimes cr->cr_groups[0] = -2; 21061558Srgrimes cr->cr_ngroups = 1; 21071558Srgrimes /* 21081558Srgrimes * Get the user's password table entry. 21091558Srgrimes */ 21101558Srgrimes names = strsep(&namelist, " \t\n"); 21111558Srgrimes name = strsep(&names, ":"); 21121558Srgrimes if (isdigit(*name) || *name == '-') 21131558Srgrimes pw = getpwuid(atoi(name)); 21141558Srgrimes else 21151558Srgrimes pw = getpwnam(name); 21161558Srgrimes /* 21171558Srgrimes * Credentials specified as those of a user. 21181558Srgrimes */ 21191558Srgrimes if (names == NULL) { 21201558Srgrimes if (pw == NULL) { 212137663Scharnier syslog(LOG_ERR, "unknown user: %s", name); 21221558Srgrimes return; 21231558Srgrimes } 21241558Srgrimes cr->cr_uid = pw->pw_uid; 21251558Srgrimes ngroups = NGROUPS + 1; 21261558Srgrimes if (getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups)) 212737663Scharnier syslog(LOG_ERR, "too many groups"); 21281558Srgrimes /* 21291558Srgrimes * Convert from int's to gid_t's and compress out duplicate 21301558Srgrimes */ 21311558Srgrimes cr->cr_ngroups = ngroups - 1; 21321558Srgrimes cr->cr_groups[0] = groups[0]; 21331558Srgrimes for (cnt = 2; cnt < ngroups; cnt++) 21341558Srgrimes cr->cr_groups[cnt - 1] = groups[cnt]; 21351558Srgrimes return; 21361558Srgrimes } 21371558Srgrimes /* 21381558Srgrimes * Explicit credential specified as a colon separated list: 21391558Srgrimes * uid:gid:gid:... 21401558Srgrimes */ 21411558Srgrimes if (pw != NULL) 21421558Srgrimes cr->cr_uid = pw->pw_uid; 21431558Srgrimes else if (isdigit(*name) || *name == '-') 21441558Srgrimes cr->cr_uid = atoi(name); 21451558Srgrimes else { 214637663Scharnier syslog(LOG_ERR, "unknown user: %s", name); 21471558Srgrimes return; 21481558Srgrimes } 21491558Srgrimes cr->cr_ngroups = 0; 21501558Srgrimes while (names != NULL && *names != '\0' && cr->cr_ngroups < NGROUPS) { 21511558Srgrimes name = strsep(&names, ":"); 21521558Srgrimes if (isdigit(*name) || *name == '-') { 21531558Srgrimes cr->cr_groups[cr->cr_ngroups++] = atoi(name); 21541558Srgrimes } else { 21551558Srgrimes if ((gr = getgrnam(name)) == NULL) { 215637663Scharnier syslog(LOG_ERR, "unknown group: %s", name); 21571558Srgrimes continue; 21581558Srgrimes } 21591558Srgrimes cr->cr_groups[cr->cr_ngroups++] = gr->gr_gid; 21601558Srgrimes } 21611558Srgrimes } 21621558Srgrimes if (names != NULL && *names != '\0' && cr->cr_ngroups == NGROUPS) 216337663Scharnier syslog(LOG_ERR, "too many groups"); 21641558Srgrimes} 21651558Srgrimes 21661558Srgrimes#define STRSIZ (RPCMNT_NAMELEN+RPCMNT_PATHLEN+50) 21671558Srgrimes/* 21681558Srgrimes * Routines that maintain the remote mounttab 21691558Srgrimes */ 21701558Srgrimesvoid 21711558Srgrimesget_mountlist() 21721558Srgrimes{ 21731558Srgrimes struct mountlist *mlp, **mlpp; 217423681Speter char *host, *dirp, *cp; 21751558Srgrimes char str[STRSIZ]; 21761558Srgrimes FILE *mlfile; 21771558Srgrimes 21781558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "r")) == NULL) { 217953117Sbillf if (errno == ENOENT) 218053117Sbillf return; 218153117Sbillf else { 218253117Sbillf syslog(LOG_ERR, "can't open %s", _PATH_RMOUNTLIST); 218353117Sbillf return; 218453117Sbillf } 21851558Srgrimes } 21861558Srgrimes mlpp = &mlhead; 21871558Srgrimes while (fgets(str, STRSIZ, mlfile) != NULL) { 218823681Speter cp = str; 218923681Speter host = strsep(&cp, " \t\n"); 219023681Speter dirp = strsep(&cp, " \t\n"); 219123681Speter if (host == NULL || dirp == NULL) 21921558Srgrimes continue; 21931558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 219437663Scharnier if (mlp == (struct mountlist *)NULL) 219537663Scharnier out_of_mem(); 219623681Speter strncpy(mlp->ml_host, host, RPCMNT_NAMELEN); 219723681Speter mlp->ml_host[RPCMNT_NAMELEN] = '\0'; 219823681Speter strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN); 219923681Speter mlp->ml_dirp[RPCMNT_PATHLEN] = '\0'; 22001558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 22011558Srgrimes *mlpp = mlp; 22021558Srgrimes mlpp = &mlp->ml_next; 22031558Srgrimes } 22041558Srgrimes fclose(mlfile); 22051558Srgrimes} 22061558Srgrimes 220775635Siedowsevoid 220875635Siedowsedel_mlist(char *hostp, char *dirp) 22091558Srgrimes{ 22101558Srgrimes struct mountlist *mlp, **mlpp; 22111558Srgrimes struct mountlist *mlp2; 22121558Srgrimes FILE *mlfile; 22131558Srgrimes int fnd = 0; 22141558Srgrimes 22151558Srgrimes mlpp = &mlhead; 22161558Srgrimes mlp = mlhead; 22171558Srgrimes while (mlp) { 22181558Srgrimes if (!strcmp(mlp->ml_host, hostp) && 22191558Srgrimes (!dirp || !strcmp(mlp->ml_dirp, dirp))) { 22201558Srgrimes fnd = 1; 22211558Srgrimes mlp2 = mlp; 22221558Srgrimes *mlpp = mlp = mlp->ml_next; 22231558Srgrimes free((caddr_t)mlp2); 22241558Srgrimes } else { 22251558Srgrimes mlpp = &mlp->ml_next; 22261558Srgrimes mlp = mlp->ml_next; 22271558Srgrimes } 22281558Srgrimes } 22291558Srgrimes if (fnd) { 22301558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "w")) == NULL) { 223137663Scharnier syslog(LOG_ERR,"can't update %s", _PATH_RMOUNTLIST); 22321558Srgrimes return; 22331558Srgrimes } 22341558Srgrimes mlp = mlhead; 22351558Srgrimes while (mlp) { 22361558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 22371558Srgrimes mlp = mlp->ml_next; 22381558Srgrimes } 22391558Srgrimes fclose(mlfile); 22401558Srgrimes } 22411558Srgrimes} 22421558Srgrimes 22431558Srgrimesvoid 22441558Srgrimesadd_mlist(hostp, dirp) 22451558Srgrimes char *hostp, *dirp; 22461558Srgrimes{ 22471558Srgrimes struct mountlist *mlp, **mlpp; 22481558Srgrimes FILE *mlfile; 22491558Srgrimes 22501558Srgrimes mlpp = &mlhead; 22511558Srgrimes mlp = mlhead; 22521558Srgrimes while (mlp) { 22531558Srgrimes if (!strcmp(mlp->ml_host, hostp) && !strcmp(mlp->ml_dirp, dirp)) 22541558Srgrimes return; 22551558Srgrimes mlpp = &mlp->ml_next; 22561558Srgrimes mlp = mlp->ml_next; 22571558Srgrimes } 22581558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 225937663Scharnier if (mlp == (struct mountlist *)NULL) 226037663Scharnier out_of_mem(); 22611558Srgrimes strncpy(mlp->ml_host, hostp, RPCMNT_NAMELEN); 22621558Srgrimes mlp->ml_host[RPCMNT_NAMELEN] = '\0'; 22631558Srgrimes strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN); 22641558Srgrimes mlp->ml_dirp[RPCMNT_PATHLEN] = '\0'; 22651558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 22661558Srgrimes *mlpp = mlp; 22671558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "a")) == NULL) { 226837663Scharnier syslog(LOG_ERR, "can't update %s", _PATH_RMOUNTLIST); 22691558Srgrimes return; 22701558Srgrimes } 22711558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 22721558Srgrimes fclose(mlfile); 22731558Srgrimes} 22741558Srgrimes 22751558Srgrimes/* 22761558Srgrimes * Free up a group list. 22771558Srgrimes */ 22781558Srgrimesvoid 22791558Srgrimesfree_grp(grp) 22801558Srgrimes struct grouplist *grp; 22811558Srgrimes{ 22821558Srgrimes if (grp->gr_type == GT_HOST) { 228374462Salfred if (grp->gr_ptr.gt_addrinfo != NULL) 228474462Salfred freeaddrinfo(grp->gr_ptr.gt_addrinfo); 22851558Srgrimes } else if (grp->gr_type == GT_NET) { 22861558Srgrimes if (grp->gr_ptr.gt_net.nt_name) 22871558Srgrimes free(grp->gr_ptr.gt_net.nt_name); 22881558Srgrimes } 22891558Srgrimes free((caddr_t)grp); 22901558Srgrimes} 22911558Srgrimes 22921558Srgrimes#ifdef DEBUG 22931558Srgrimesvoid 22941558SrgrimesSYSLOG(int pri, const char *fmt, ...) 22951558Srgrimes{ 22961558Srgrimes va_list ap; 22971558Srgrimes 22981558Srgrimes va_start(ap, fmt); 22991558Srgrimes vfprintf(stderr, fmt, ap); 23001558Srgrimes va_end(ap); 23011558Srgrimes} 23021558Srgrimes#endif /* DEBUG */ 23031558Srgrimes 23041558Srgrimes/* 23051558Srgrimes * Check options for consistency. 23061558Srgrimes */ 23071558Srgrimesint 23081558Srgrimescheck_options(dp) 23091558Srgrimes struct dirlist *dp; 23101558Srgrimes{ 23111558Srgrimes 23121558Srgrimes if (dp == (struct dirlist *)NULL) 23131558Srgrimes return (1); 231483653Speter if ((opt_flags & (OP_MAPROOT | OP_MAPALL)) == (OP_MAPROOT | OP_MAPALL)) { 231583653Speter syslog(LOG_ERR, "-mapall and -maproot mutually exclusive"); 23161558Srgrimes return (1); 23171558Srgrimes } 23181558Srgrimes if ((opt_flags & OP_MASK) && (opt_flags & OP_NET) == 0) { 231975801Siedowse syslog(LOG_ERR, "-mask requires -network"); 232075801Siedowse return (1); 23211558Srgrimes } 232275801Siedowse if ((opt_flags & OP_NET) && (opt_flags & OP_HAVEMASK) == 0) { 232375801Siedowse syslog(LOG_ERR, "-network requires mask specification"); 232475801Siedowse return (1); 232575801Siedowse } 232675801Siedowse if ((opt_flags & OP_MASK) && (opt_flags & OP_MASKLEN)) { 232775801Siedowse syslog(LOG_ERR, "-mask and /masklen are mutually exclusive"); 232875801Siedowse return (1); 232975801Siedowse } 23301558Srgrimes if ((opt_flags & OP_ALLDIRS) && dp->dp_left) { 233145927Salex syslog(LOG_ERR, "-alldirs has multiple directories"); 23321558Srgrimes return (1); 23331558Srgrimes } 23341558Srgrimes return (0); 23351558Srgrimes} 23361558Srgrimes 23371558Srgrimes/* 23381558Srgrimes * Check an absolute directory path for any symbolic links. Return true 23391558Srgrimes */ 23401558Srgrimesint 23411558Srgrimescheck_dirpath(dirp) 23421558Srgrimes char *dirp; 23431558Srgrimes{ 23441558Srgrimes char *cp; 23451558Srgrimes int ret = 1; 23461558Srgrimes struct stat sb; 23471558Srgrimes 23481558Srgrimes cp = dirp + 1; 23491558Srgrimes while (*cp && ret) { 23501558Srgrimes if (*cp == '/') { 23511558Srgrimes *cp = '\0'; 23529336Sdfr if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode)) 23531558Srgrimes ret = 0; 23541558Srgrimes *cp = '/'; 23551558Srgrimes } 23561558Srgrimes cp++; 23571558Srgrimes } 23589336Sdfr if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode)) 23591558Srgrimes ret = 0; 23601558Srgrimes return (ret); 23611558Srgrimes} 23629336Sdfr 236375801Siedowse/* 236475801Siedowse * Make a netmask according to the specified prefix length. The ss_family 236575801Siedowse * and other non-address fields must be initialised before calling this. 236675801Siedowse */ 236775801Siedowseint 236875801Siedowsemakemask(struct sockaddr_storage *ssp, int bitlen) 236974462Salfred{ 237075801Siedowse u_char *p; 237175801Siedowse int bits, i, len; 237274462Salfred 237375801Siedowse if ((p = sa_rawaddr((struct sockaddr *)ssp, &len)) == NULL) 237475801Siedowse return (-1); 2375103949Smike if (bitlen > len * CHAR_BIT) 237675801Siedowse return (-1); 237774462Salfred 237875801Siedowse for (i = 0; i < len; i++) { 2379103949Smike bits = (bitlen > CHAR_BIT) ? CHAR_BIT : bitlen; 238075801Siedowse *p++ = (1 << bits) - 1; 238175801Siedowse bitlen -= bits; 238274462Salfred } 238375801Siedowse return 0; 238474462Salfred} 238574462Salfred 238675801Siedowse/* 238775801Siedowse * Check that the sockaddr is a valid netmask. Returns 0 if the mask 238875801Siedowse * is acceptable (i.e. of the form 1...10....0). 238975801Siedowse */ 239075801Siedowseint 239175801Siedowsecheckmask(struct sockaddr *sa) 239274462Salfred{ 239375801Siedowse u_char *mask; 239475801Siedowse int i, len; 239574462Salfred 239675801Siedowse if ((mask = sa_rawaddr(sa, &len)) == NULL) 239775801Siedowse return (-1); 239875801Siedowse 239975801Siedowse for (i = 0; i < len; i++) 240075801Siedowse if (mask[i] != 0xff) 240175801Siedowse break; 240275801Siedowse if (i < len) { 240375801Siedowse if (~mask[i] & (u_char)(~mask[i] + 1)) 240475801Siedowse return (-1); 240575801Siedowse i++; 240674462Salfred } 240775801Siedowse for (; i < len; i++) 240875801Siedowse if (mask[i] != 0) 240975801Siedowse return (-1); 241075801Siedowse return (0); 241174462Salfred} 241274462Salfred 241375801Siedowse/* 241475801Siedowse * Compare two sockaddrs according to a specified mask. Return zero if 241575801Siedowse * `sa1' matches `sa2' when filtered by the netmask in `samask'. 241675801Siedowse * If samask is NULL, perform a full comparision. 241775801Siedowse */ 241875801Siedowseint 241975801Siedowsesacmp(struct sockaddr *sa1, struct sockaddr *sa2, struct sockaddr *samask) 242074462Salfred{ 242175801Siedowse unsigned char *p1, *p2, *mask; 242275801Siedowse int len, i; 242374462Salfred 242475801Siedowse if (sa1->sa_family != sa2->sa_family || 242575801Siedowse (p1 = sa_rawaddr(sa1, &len)) == NULL || 242675801Siedowse (p2 = sa_rawaddr(sa2, NULL)) == NULL) 242775801Siedowse return (1); 242875801Siedowse 242975801Siedowse switch (sa1->sa_family) { 243074462Salfred case AF_INET6: 243175801Siedowse if (((struct sockaddr_in6 *)sa1)->sin6_scope_id != 243275801Siedowse ((struct sockaddr_in6 *)sa2)->sin6_scope_id) 243375801Siedowse return (1); 243474462Salfred break; 243574462Salfred } 243674462Salfred 243775801Siedowse /* Simple binary comparison if no mask specified. */ 243875801Siedowse if (samask == NULL) 243975801Siedowse return (memcmp(p1, p2, len)); 244074462Salfred 244175801Siedowse /* Set up the mask, and do a mask-based comparison. */ 244275801Siedowse if (sa1->sa_family != samask->sa_family || 244375801Siedowse (mask = sa_rawaddr(samask, NULL)) == NULL) 244475801Siedowse return (1); 244574462Salfred 244675801Siedowse for (i = 0; i < len; i++) 244775801Siedowse if ((p1[i] & mask[i]) != (p2[i] & mask[i])) 244875801Siedowse return (1); 244975801Siedowse return (0); 245074462Salfred} 245174462Salfred 245275801Siedowse/* 245375801Siedowse * Return a pointer to the part of the sockaddr that contains the 245475801Siedowse * raw address, and set *nbytes to its length in bytes. Returns 245575801Siedowse * NULL if the address family is unknown. 245675801Siedowse */ 245775801Siedowsevoid * 245875801Siedowsesa_rawaddr(struct sockaddr *sa, int *nbytes) { 245975801Siedowse void *p; 246074462Salfred int len; 246174462Salfred 246275801Siedowse switch (sa->sa_family) { 246374462Salfred case AF_INET: 246475801Siedowse len = sizeof(((struct sockaddr_in *)sa)->sin_addr); 246575801Siedowse p = &((struct sockaddr_in *)sa)->sin_addr; 246674462Salfred break; 246774462Salfred case AF_INET6: 246875801Siedowse len = sizeof(((struct sockaddr_in6 *)sa)->sin6_addr); 246975801Siedowse p = &((struct sockaddr_in6 *)sa)->sin6_addr; 247074462Salfred break; 247174462Salfred default: 247275801Siedowse p = NULL; 247375801Siedowse len = 0; 247474462Salfred } 247574462Salfred 247675801Siedowse if (nbytes != NULL) 247775801Siedowse *nbytes = len; 247875801Siedowse return (p); 247974462Salfred} 248074462Salfred 248175754Siedowsevoid 248275754Siedowsehuphandler(int sig) 248375754Siedowse{ 248475754Siedowse got_sighup = 1; 248575754Siedowse} 248675754Siedowse 248774462Salfredvoid terminate(sig) 248874462Salfredint sig; 248974462Salfred{ 249074462Salfred close(mountdlockfd); 249174462Salfred unlink(MOUNTDLOCK); 249274792Salfred rpcb_unset(RPCPROG_MNT, RPCMNT_VER1, NULL); 249374792Salfred rpcb_unset(RPCPROG_MNT, RPCMNT_VER3, NULL); 249474462Salfred exit (0); 249574462Salfred} 2496