mountd.c revision 1558
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 381558Srgrimesstatic char copyright[] = 391558Srgrimes"@(#) Copyright (c) 1989, 1993\n\ 401558Srgrimes The Regents of the University of California. All rights reserved.\n"; 411558Srgrimes#endif not lint 421558Srgrimes 431558Srgrimes#ifndef lint 441558Srgrimesstatic char sccsid[] = "@(#)mountd.c 8.8 (Berkeley) 2/20/94"; 451558Srgrimes#endif not lint 461558Srgrimes 471558Srgrimes#include <sys/param.h> 481558Srgrimes#include <sys/file.h> 491558Srgrimes#include <sys/ioctl.h> 501558Srgrimes#include <sys/mount.h> 511558Srgrimes#include <sys/socket.h> 521558Srgrimes#include <sys/stat.h> 531558Srgrimes#include <sys/syslog.h> 541558Srgrimes#include <sys/ucred.h> 551558Srgrimes 561558Srgrimes#include <rpc/rpc.h> 571558Srgrimes#include <rpc/pmap_clnt.h> 581558Srgrimes#include <rpc/pmap_prot.h> 591558Srgrimes#ifdef ISO 601558Srgrimes#include <netiso/iso.h> 611558Srgrimes#endif 621558Srgrimes#include <nfs/rpcv2.h> 631558Srgrimes#include <nfs/nfsv2.h> 641558Srgrimes 651558Srgrimes#include <arpa/inet.h> 661558Srgrimes 671558Srgrimes#include <ctype.h> 681558Srgrimes#include <errno.h> 691558Srgrimes#include <grp.h> 701558Srgrimes#include <netdb.h> 711558Srgrimes#include <pwd.h> 721558Srgrimes#include <signal.h> 731558Srgrimes#include <stdio.h> 741558Srgrimes#include <stdlib.h> 751558Srgrimes#include <string.h> 761558Srgrimes#include <unistd.h> 771558Srgrimes#include "pathnames.h" 781558Srgrimes 791558Srgrimes#ifdef DEBUG 801558Srgrimes#include <stdarg.h> 811558Srgrimes#endif 821558Srgrimes 831558Srgrimes/* 841558Srgrimes * Structures for keeping the mount list and export list 851558Srgrimes */ 861558Srgrimesstruct mountlist { 871558Srgrimes struct mountlist *ml_next; 881558Srgrimes char ml_host[RPCMNT_NAMELEN+1]; 891558Srgrimes char ml_dirp[RPCMNT_PATHLEN+1]; 901558Srgrimes}; 911558Srgrimes 921558Srgrimesstruct dirlist { 931558Srgrimes struct dirlist *dp_left; 941558Srgrimes struct dirlist *dp_right; 951558Srgrimes int dp_flag; 961558Srgrimes struct hostlist *dp_hosts; /* List of hosts this dir exported to */ 971558Srgrimes char dp_dirp[1]; /* Actually malloc'd to size of dir */ 981558Srgrimes}; 991558Srgrimes/* dp_flag bits */ 1001558Srgrimes#define DP_DEFSET 0x1 1011558Srgrimes 1021558Srgrimesstruct exportlist { 1031558Srgrimes struct exportlist *ex_next; 1041558Srgrimes struct dirlist *ex_dirl; 1051558Srgrimes struct dirlist *ex_defdir; 1061558Srgrimes int ex_flag; 1071558Srgrimes fsid_t ex_fs; 1081558Srgrimes char *ex_fsdir; 1091558Srgrimes}; 1101558Srgrimes/* ex_flag bits */ 1111558Srgrimes#define EX_LINKED 0x1 1121558Srgrimes 1131558Srgrimesstruct netmsk { 1141558Srgrimes u_long nt_net; 1151558Srgrimes u_long nt_mask; 1161558Srgrimes char *nt_name; 1171558Srgrimes}; 1181558Srgrimes 1191558Srgrimesunion grouptypes { 1201558Srgrimes struct hostent *gt_hostent; 1211558Srgrimes struct netmsk gt_net; 1221558Srgrimes#ifdef ISO 1231558Srgrimes struct sockaddr_iso *gt_isoaddr; 1241558Srgrimes#endif 1251558Srgrimes}; 1261558Srgrimes 1271558Srgrimesstruct grouplist { 1281558Srgrimes int gr_type; 1291558Srgrimes union grouptypes gr_ptr; 1301558Srgrimes struct grouplist *gr_next; 1311558Srgrimes}; 1321558Srgrimes/* Group types */ 1331558Srgrimes#define GT_NULL 0x0 1341558Srgrimes#define GT_HOST 0x1 1351558Srgrimes#define GT_NET 0x2 1361558Srgrimes#define GT_ISO 0x4 1371558Srgrimes 1381558Srgrimesstruct hostlist { 1391558Srgrimes struct grouplist *ht_grp; 1401558Srgrimes struct hostlist *ht_next; 1411558Srgrimes}; 1421558Srgrimes 1431558Srgrimes/* Global defs */ 1441558Srgrimeschar *add_expdir __P((struct dirlist **, char *, int)); 1451558Srgrimesvoid add_dlist __P((struct dirlist **, struct dirlist *, 1461558Srgrimes struct grouplist *)); 1471558Srgrimesvoid add_mlist __P((char *, char *)); 1481558Srgrimesint check_dirpath __P((char *)); 1491558Srgrimesint check_options __P((struct dirlist *)); 1501558Srgrimesint chk_host __P((struct dirlist *, u_long, int *)); 1511558Srgrimesvoid del_mlist __P((char *, char *)); 1521558Srgrimesstruct dirlist *dirp_search __P((struct dirlist *, char *)); 1531558Srgrimesint do_mount __P((struct exportlist *, struct grouplist *, int, 1541558Srgrimes struct ucred *, char *, int, struct statfs *)); 1551558Srgrimesint do_opt __P((char **, char **, struct exportlist *, struct grouplist *, 1561558Srgrimes int *, int *, struct ucred *)); 1571558Srgrimesstruct exportlist *ex_search __P((fsid_t *)); 1581558Srgrimesstruct exportlist *get_exp __P((void)); 1591558Srgrimesvoid free_dir __P((struct dirlist *)); 1601558Srgrimesvoid free_exp __P((struct exportlist *)); 1611558Srgrimesvoid free_grp __P((struct grouplist *)); 1621558Srgrimesvoid free_host __P((struct hostlist *)); 1631558Srgrimesvoid get_exportlist __P((void)); 1641558Srgrimesint get_host __P((char *, struct grouplist *)); 1651558Srgrimesstruct hostlist *get_ht __P((void)); 1661558Srgrimesint get_line __P((void)); 1671558Srgrimesvoid get_mountlist __P((void)); 1681558Srgrimesint get_net __P((char *, struct netmsk *, int)); 1691558Srgrimesvoid getexp_err __P((struct exportlist *, struct grouplist *)); 1701558Srgrimesstruct grouplist *get_grp __P((void)); 1711558Srgrimesvoid hang_dirp __P((struct dirlist *, struct grouplist *, 1721558Srgrimes struct exportlist *, int)); 1731558Srgrimesvoid mntsrv __P((struct svc_req *, SVCXPRT *)); 1741558Srgrimesvoid nextfield __P((char **, char **)); 1751558Srgrimesvoid out_of_mem __P((void)); 1761558Srgrimesvoid parsecred __P((char *, struct ucred *)); 1771558Srgrimesint put_exlist __P((struct dirlist *, XDR *, struct dirlist *, int *)); 1781558Srgrimesint scan_tree __P((struct dirlist *, u_long)); 1791558Srgrimesvoid send_umntall __P((void)); 1801558Srgrimesint umntall_each __P((caddr_t, struct sockaddr_in *)); 1811558Srgrimesint xdr_dir __P((XDR *, char *)); 1821558Srgrimesint xdr_explist __P((XDR *, caddr_t)); 1831558Srgrimesint xdr_fhs __P((XDR *, nfsv2fh_t *)); 1841558Srgrimesint xdr_mlist __P((XDR *, caddr_t)); 1851558Srgrimes 1861558Srgrimes/* C library */ 1871558Srgrimesint getnetgrent(); 1881558Srgrimesvoid endnetgrent(); 1891558Srgrimesvoid setnetgrent(); 1901558Srgrimes 1911558Srgrimes#ifdef ISO 1921558Srgrimesstruct iso_addr *iso_addr(); 1931558Srgrimes#endif 1941558Srgrimes 1951558Srgrimesstruct exportlist *exphead; 1961558Srgrimesstruct mountlist *mlhead; 1971558Srgrimesstruct grouplist *grphead; 1981558Srgrimeschar exname[MAXPATHLEN]; 1991558Srgrimesstruct ucred def_anon = { 2001558Srgrimes 1, 2011558Srgrimes (uid_t) -2, 2021558Srgrimes 1, 2031558Srgrimes { (gid_t) -2 } 2041558Srgrimes}; 2051558Srgrimesint root_only = 1; 2061558Srgrimesint opt_flags; 2071558Srgrimes/* Bits for above */ 2081558Srgrimes#define OP_MAPROOT 0x01 2091558Srgrimes#define OP_MAPALL 0x02 2101558Srgrimes#define OP_KERB 0x04 2111558Srgrimes#define OP_MASK 0x08 2121558Srgrimes#define OP_NET 0x10 2131558Srgrimes#define OP_ISO 0x20 2141558Srgrimes#define OP_ALLDIRS 0x40 2151558Srgrimes 2161558Srgrimes#ifdef DEBUG 2171558Srgrimesint debug = 1; 2181558Srgrimesvoid SYSLOG __P((int, const char *, ...)); 2191558Srgrimes#define syslog SYSLOG 2201558Srgrimes#else 2211558Srgrimesint debug = 0; 2221558Srgrimes#endif 2231558Srgrimes 2241558Srgrimes/* 2251558Srgrimes * Mountd server for NFS mount protocol as described in: 2261558Srgrimes * NFS: Network File System Protocol Specification, RFC1094, Appendix A 2271558Srgrimes * The optional arguments are the exports file name 2281558Srgrimes * default: _PATH_EXPORTS 2291558Srgrimes * and "-n" to allow nonroot mount. 2301558Srgrimes */ 2311558Srgrimesint 2321558Srgrimesmain(argc, argv) 2331558Srgrimes int argc; 2341558Srgrimes char **argv; 2351558Srgrimes{ 2361558Srgrimes SVCXPRT *transp; 2371558Srgrimes int c; 2381558Srgrimes 2391558Srgrimes while ((c = getopt(argc, argv, "n")) != EOF) 2401558Srgrimes switch (c) { 2411558Srgrimes case 'n': 2421558Srgrimes root_only = 0; 2431558Srgrimes break; 2441558Srgrimes default: 2451558Srgrimes fprintf(stderr, "Usage: mountd [-n] [export_file]\n"); 2461558Srgrimes exit(1); 2471558Srgrimes }; 2481558Srgrimes argc -= optind; 2491558Srgrimes argv += optind; 2501558Srgrimes grphead = (struct grouplist *)NULL; 2511558Srgrimes exphead = (struct exportlist *)NULL; 2521558Srgrimes mlhead = (struct mountlist *)NULL; 2531558Srgrimes if (argc == 1) { 2541558Srgrimes strncpy(exname, *argv, MAXPATHLEN-1); 2551558Srgrimes exname[MAXPATHLEN-1] = '\0'; 2561558Srgrimes } else 2571558Srgrimes strcpy(exname, _PATH_EXPORTS); 2581558Srgrimes openlog("mountd", LOG_PID, LOG_DAEMON); 2591558Srgrimes if (debug) 2601558Srgrimes fprintf(stderr,"Getting export list.\n"); 2611558Srgrimes get_exportlist(); 2621558Srgrimes if (debug) 2631558Srgrimes fprintf(stderr,"Getting mount list.\n"); 2641558Srgrimes get_mountlist(); 2651558Srgrimes if (debug) 2661558Srgrimes fprintf(stderr,"Here we go.\n"); 2671558Srgrimes if (debug == 0) { 2681558Srgrimes daemon(0, 0); 2691558Srgrimes signal(SIGINT, SIG_IGN); 2701558Srgrimes signal(SIGQUIT, SIG_IGN); 2711558Srgrimes } 2721558Srgrimes signal(SIGHUP, (void (*) __P((int))) get_exportlist); 2731558Srgrimes signal(SIGTERM, (void (*) __P((int))) send_umntall); 2741558Srgrimes { FILE *pidfile = fopen(_PATH_MOUNTDPID, "w"); 2751558Srgrimes if (pidfile != NULL) { 2761558Srgrimes fprintf(pidfile, "%d\n", getpid()); 2771558Srgrimes fclose(pidfile); 2781558Srgrimes } 2791558Srgrimes } 2801558Srgrimes if ((transp = svcudp_create(RPC_ANYSOCK)) == NULL) { 2811558Srgrimes syslog(LOG_ERR, "Can't create socket"); 2821558Srgrimes exit(1); 2831558Srgrimes } 2841558Srgrimes pmap_unset(RPCPROG_MNT, RPCMNT_VER1); 2851558Srgrimes if (!svc_register(transp, RPCPROG_MNT, RPCMNT_VER1, mntsrv, 2861558Srgrimes IPPROTO_UDP)) { 2871558Srgrimes syslog(LOG_ERR, "Can't register mount"); 2881558Srgrimes exit(1); 2891558Srgrimes } 2901558Srgrimes svc_run(); 2911558Srgrimes syslog(LOG_ERR, "Mountd died"); 2921558Srgrimes exit(1); 2931558Srgrimes} 2941558Srgrimes 2951558Srgrimes/* 2961558Srgrimes * The mount rpc service 2971558Srgrimes */ 2981558Srgrimesvoid 2991558Srgrimesmntsrv(rqstp, transp) 3001558Srgrimes struct svc_req *rqstp; 3011558Srgrimes SVCXPRT *transp; 3021558Srgrimes{ 3031558Srgrimes struct exportlist *ep; 3041558Srgrimes struct dirlist *dp; 3051558Srgrimes nfsv2fh_t nfh; 3061558Srgrimes struct authunix_parms *ucr; 3071558Srgrimes struct stat stb; 3081558Srgrimes struct statfs fsb; 3091558Srgrimes struct hostent *hp; 3101558Srgrimes u_long saddr; 3111558Srgrimes char rpcpath[RPCMNT_PATHLEN+1], dirpath[MAXPATHLEN]; 3121558Srgrimes int bad = ENOENT, omask, defset; 3131558Srgrimes uid_t uid = -2; 3141558Srgrimes 3151558Srgrimes /* Get authorization */ 3161558Srgrimes switch (rqstp->rq_cred.oa_flavor) { 3171558Srgrimes case AUTH_UNIX: 3181558Srgrimes ucr = (struct authunix_parms *)rqstp->rq_clntcred; 3191558Srgrimes uid = ucr->aup_uid; 3201558Srgrimes break; 3211558Srgrimes case AUTH_NULL: 3221558Srgrimes default: 3231558Srgrimes break; 3241558Srgrimes } 3251558Srgrimes 3261558Srgrimes saddr = transp->xp_raddr.sin_addr.s_addr; 3271558Srgrimes hp = (struct hostent *)NULL; 3281558Srgrimes switch (rqstp->rq_proc) { 3291558Srgrimes case NULLPROC: 3301558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 3311558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3321558Srgrimes return; 3331558Srgrimes case RPCMNT_MOUNT: 3341558Srgrimes if ((uid != 0 && root_only) || uid == -2) { 3351558Srgrimes svcerr_weakauth(transp); 3361558Srgrimes return; 3371558Srgrimes } 3381558Srgrimes if (!svc_getargs(transp, xdr_dir, rpcpath)) { 3391558Srgrimes svcerr_decode(transp); 3401558Srgrimes return; 3411558Srgrimes } 3421558Srgrimes 3431558Srgrimes /* 3441558Srgrimes * Get the real pathname and make sure it is a directory 3451558Srgrimes * that exists. 3461558Srgrimes */ 3471558Srgrimes if (realpath(rpcpath, dirpath) == 0 || 3481558Srgrimes stat(dirpath, &stb) < 0 || 3491558Srgrimes (stb.st_mode & S_IFMT) != S_IFDIR || 3501558Srgrimes statfs(dirpath, &fsb) < 0) { 3511558Srgrimes chdir("/"); /* Just in case realpath doesn't */ 3521558Srgrimes if (debug) 3531558Srgrimes fprintf(stderr, "stat failed on %s\n", dirpath); 3541558Srgrimes if (!svc_sendreply(transp, xdr_long, (caddr_t)&bad)) 3551558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3561558Srgrimes return; 3571558Srgrimes } 3581558Srgrimes 3591558Srgrimes /* Check in the exports list */ 3601558Srgrimes omask = sigblock(sigmask(SIGHUP)); 3611558Srgrimes ep = ex_search(&fsb.f_fsid); 3621558Srgrimes defset = 0; 3631558Srgrimes if (ep && (chk_host(ep->ex_defdir, saddr, &defset) || 3641558Srgrimes ((dp = dirp_search(ep->ex_dirl, dirpath)) && 3651558Srgrimes chk_host(dp, saddr, &defset)) || 3661558Srgrimes (defset && scan_tree(ep->ex_defdir, saddr) == 0 && 3671558Srgrimes scan_tree(ep->ex_dirl, saddr) == 0))) { 3681558Srgrimes /* Get the file handle */ 3691558Srgrimes bzero((caddr_t)&nfh, sizeof(nfh)); 3701558Srgrimes if (getfh(dirpath, (fhandle_t *)&nfh) < 0) { 3711558Srgrimes bad = errno; 3721558Srgrimes syslog(LOG_ERR, "Can't get fh for %s", dirpath); 3731558Srgrimes if (!svc_sendreply(transp, xdr_long, 3741558Srgrimes (caddr_t)&bad)) 3751558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3761558Srgrimes sigsetmask(omask); 3771558Srgrimes return; 3781558Srgrimes } 3791558Srgrimes if (!svc_sendreply(transp, xdr_fhs, (caddr_t)&nfh)) 3801558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3811558Srgrimes if (hp == NULL) 3821558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, 3831558Srgrimes sizeof(saddr), AF_INET); 3841558Srgrimes if (hp) 3851558Srgrimes add_mlist(hp->h_name, dirpath); 3861558Srgrimes else 3871558Srgrimes add_mlist(inet_ntoa(transp->xp_raddr.sin_addr), 3881558Srgrimes dirpath); 3891558Srgrimes if (debug) 3901558Srgrimes fprintf(stderr,"Mount successfull.\n"); 3911558Srgrimes } else { 3921558Srgrimes bad = EACCES; 3931558Srgrimes if (!svc_sendreply(transp, xdr_long, (caddr_t)&bad)) 3941558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3951558Srgrimes } 3961558Srgrimes sigsetmask(omask); 3971558Srgrimes return; 3981558Srgrimes case RPCMNT_DUMP: 3991558Srgrimes if (!svc_sendreply(transp, xdr_mlist, (caddr_t)NULL)) 4001558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4011558Srgrimes return; 4021558Srgrimes case RPCMNT_UMOUNT: 4031558Srgrimes if ((uid != 0 && root_only) || uid == -2) { 4041558Srgrimes svcerr_weakauth(transp); 4051558Srgrimes return; 4061558Srgrimes } 4071558Srgrimes if (!svc_getargs(transp, xdr_dir, dirpath)) { 4081558Srgrimes svcerr_decode(transp); 4091558Srgrimes return; 4101558Srgrimes } 4111558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 4121558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4131558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET); 4141558Srgrimes if (hp) 4151558Srgrimes del_mlist(hp->h_name, dirpath); 4161558Srgrimes del_mlist(inet_ntoa(transp->xp_raddr.sin_addr), dirpath); 4171558Srgrimes return; 4181558Srgrimes case RPCMNT_UMNTALL: 4191558Srgrimes if ((uid != 0 && root_only) || uid == -2) { 4201558Srgrimes svcerr_weakauth(transp); 4211558Srgrimes return; 4221558Srgrimes } 4231558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 4241558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4251558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET); 4261558Srgrimes if (hp) 4271558Srgrimes del_mlist(hp->h_name, (char *)NULL); 4281558Srgrimes del_mlist(inet_ntoa(transp->xp_raddr.sin_addr), (char *)NULL); 4291558Srgrimes return; 4301558Srgrimes case RPCMNT_EXPORT: 4311558Srgrimes if (!svc_sendreply(transp, xdr_explist, (caddr_t)NULL)) 4321558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4331558Srgrimes return; 4341558Srgrimes default: 4351558Srgrimes svcerr_noproc(transp); 4361558Srgrimes return; 4371558Srgrimes } 4381558Srgrimes} 4391558Srgrimes 4401558Srgrimes/* 4411558Srgrimes * Xdr conversion for a dirpath string 4421558Srgrimes */ 4431558Srgrimesint 4441558Srgrimesxdr_dir(xdrsp, dirp) 4451558Srgrimes XDR *xdrsp; 4461558Srgrimes char *dirp; 4471558Srgrimes{ 4481558Srgrimes return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN)); 4491558Srgrimes} 4501558Srgrimes 4511558Srgrimes/* 4521558Srgrimes * Xdr routine to generate fhstatus 4531558Srgrimes */ 4541558Srgrimesint 4551558Srgrimesxdr_fhs(xdrsp, nfh) 4561558Srgrimes XDR *xdrsp; 4571558Srgrimes nfsv2fh_t *nfh; 4581558Srgrimes{ 4591558Srgrimes int ok = 0; 4601558Srgrimes 4611558Srgrimes if (!xdr_long(xdrsp, &ok)) 4621558Srgrimes return (0); 4631558Srgrimes return (xdr_opaque(xdrsp, (caddr_t)nfh, NFSX_FH)); 4641558Srgrimes} 4651558Srgrimes 4661558Srgrimesint 4671558Srgrimesxdr_mlist(xdrsp, cp) 4681558Srgrimes XDR *xdrsp; 4691558Srgrimes caddr_t cp; 4701558Srgrimes{ 4711558Srgrimes struct mountlist *mlp; 4721558Srgrimes int true = 1; 4731558Srgrimes int false = 0; 4741558Srgrimes char *strp; 4751558Srgrimes 4761558Srgrimes mlp = mlhead; 4771558Srgrimes while (mlp) { 4781558Srgrimes if (!xdr_bool(xdrsp, &true)) 4791558Srgrimes return (0); 4801558Srgrimes strp = &mlp->ml_host[0]; 4811558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN)) 4821558Srgrimes return (0); 4831558Srgrimes strp = &mlp->ml_dirp[0]; 4841558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 4851558Srgrimes return (0); 4861558Srgrimes mlp = mlp->ml_next; 4871558Srgrimes } 4881558Srgrimes if (!xdr_bool(xdrsp, &false)) 4891558Srgrimes return (0); 4901558Srgrimes return (1); 4911558Srgrimes} 4921558Srgrimes 4931558Srgrimes/* 4941558Srgrimes * Xdr conversion for export list 4951558Srgrimes */ 4961558Srgrimesint 4971558Srgrimesxdr_explist(xdrsp, cp) 4981558Srgrimes XDR *xdrsp; 4991558Srgrimes caddr_t cp; 5001558Srgrimes{ 5011558Srgrimes struct exportlist *ep; 5021558Srgrimes int false = 0; 5031558Srgrimes int omask, putdef; 5041558Srgrimes 5051558Srgrimes omask = sigblock(sigmask(SIGHUP)); 5061558Srgrimes ep = exphead; 5071558Srgrimes while (ep) { 5081558Srgrimes putdef = 0; 5091558Srgrimes if (put_exlist(ep->ex_dirl, xdrsp, ep->ex_defdir, &putdef)) 5101558Srgrimes goto errout; 5111558Srgrimes if (ep->ex_defdir && putdef == 0 && 5121558Srgrimes put_exlist(ep->ex_defdir, xdrsp, (struct dirlist *)NULL, 5131558Srgrimes &putdef)) 5141558Srgrimes goto errout; 5151558Srgrimes ep = ep->ex_next; 5161558Srgrimes } 5171558Srgrimes sigsetmask(omask); 5181558Srgrimes if (!xdr_bool(xdrsp, &false)) 5191558Srgrimes return (0); 5201558Srgrimes return (1); 5211558Srgrimeserrout: 5221558Srgrimes sigsetmask(omask); 5231558Srgrimes return (0); 5241558Srgrimes} 5251558Srgrimes 5261558Srgrimes/* 5271558Srgrimes * Called from xdr_explist() to traverse the tree and export the 5281558Srgrimes * directory paths. 5291558Srgrimes */ 5301558Srgrimesint 5311558Srgrimesput_exlist(dp, xdrsp, adp, putdefp) 5321558Srgrimes struct dirlist *dp; 5331558Srgrimes XDR *xdrsp; 5341558Srgrimes struct dirlist *adp; 5351558Srgrimes int *putdefp; 5361558Srgrimes{ 5371558Srgrimes struct grouplist *grp; 5381558Srgrimes struct hostlist *hp; 5391558Srgrimes int true = 1; 5401558Srgrimes int false = 0; 5411558Srgrimes int gotalldir = 0; 5421558Srgrimes char *strp; 5431558Srgrimes 5441558Srgrimes if (dp) { 5451558Srgrimes if (put_exlist(dp->dp_left, xdrsp, adp, putdefp)) 5461558Srgrimes return (1); 5471558Srgrimes if (!xdr_bool(xdrsp, &true)) 5481558Srgrimes return (1); 5491558Srgrimes strp = dp->dp_dirp; 5501558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 5511558Srgrimes return (1); 5521558Srgrimes if (adp && !strcmp(dp->dp_dirp, adp->dp_dirp)) { 5531558Srgrimes gotalldir = 1; 5541558Srgrimes *putdefp = 1; 5551558Srgrimes } 5561558Srgrimes if ((dp->dp_flag & DP_DEFSET) == 0 && 5571558Srgrimes (gotalldir == 0 || (adp->dp_flag & DP_DEFSET) == 0)) { 5581558Srgrimes hp = dp->dp_hosts; 5591558Srgrimes while (hp) { 5601558Srgrimes grp = hp->ht_grp; 5611558Srgrimes if (grp->gr_type == GT_HOST) { 5621558Srgrimes if (!xdr_bool(xdrsp, &true)) 5631558Srgrimes return (1); 5641558Srgrimes strp = grp->gr_ptr.gt_hostent->h_name; 5651558Srgrimes if (!xdr_string(xdrsp, &strp, 5661558Srgrimes RPCMNT_NAMELEN)) 5671558Srgrimes return (1); 5681558Srgrimes } else if (grp->gr_type == GT_NET) { 5691558Srgrimes if (!xdr_bool(xdrsp, &true)) 5701558Srgrimes return (1); 5711558Srgrimes strp = grp->gr_ptr.gt_net.nt_name; 5721558Srgrimes if (!xdr_string(xdrsp, &strp, 5731558Srgrimes RPCMNT_NAMELEN)) 5741558Srgrimes return (1); 5751558Srgrimes } 5761558Srgrimes hp = hp->ht_next; 5771558Srgrimes if (gotalldir && hp == (struct hostlist *)NULL) { 5781558Srgrimes hp = adp->dp_hosts; 5791558Srgrimes gotalldir = 0; 5801558Srgrimes } 5811558Srgrimes } 5821558Srgrimes } 5831558Srgrimes if (!xdr_bool(xdrsp, &false)) 5841558Srgrimes return (1); 5851558Srgrimes if (put_exlist(dp->dp_right, xdrsp, adp, putdefp)) 5861558Srgrimes return (1); 5871558Srgrimes } 5881558Srgrimes return (0); 5891558Srgrimes} 5901558Srgrimes 5911558Srgrimes#define LINESIZ 10240 5921558Srgrimeschar line[LINESIZ]; 5931558SrgrimesFILE *exp_file; 5941558Srgrimes 5951558Srgrimes/* 5961558Srgrimes * Get the export list 5971558Srgrimes */ 5981558Srgrimesvoid 5991558Srgrimesget_exportlist() 6001558Srgrimes{ 6011558Srgrimes struct exportlist *ep, *ep2; 6021558Srgrimes struct grouplist *grp, *tgrp; 6031558Srgrimes struct exportlist **epp; 6041558Srgrimes struct dirlist *dirhead; 6051558Srgrimes struct statfs fsb, *fsp; 6061558Srgrimes struct hostent *hpe; 6071558Srgrimes struct ucred anon; 6081558Srgrimes char *cp, *endcp, *dirp, *hst, *usr, *dom, savedc; 6091558Srgrimes int len, has_host, exflags, got_nondir, dirplen, num, i, netgrp; 6101558Srgrimes 6111558Srgrimes /* 6121558Srgrimes * First, get rid of the old list 6131558Srgrimes */ 6141558Srgrimes ep = exphead; 6151558Srgrimes while (ep) { 6161558Srgrimes ep2 = ep; 6171558Srgrimes ep = ep->ex_next; 6181558Srgrimes free_exp(ep2); 6191558Srgrimes } 6201558Srgrimes exphead = (struct exportlist *)NULL; 6211558Srgrimes 6221558Srgrimes grp = grphead; 6231558Srgrimes while (grp) { 6241558Srgrimes tgrp = grp; 6251558Srgrimes grp = grp->gr_next; 6261558Srgrimes free_grp(tgrp); 6271558Srgrimes } 6281558Srgrimes grphead = (struct grouplist *)NULL; 6291558Srgrimes 6301558Srgrimes /* 6311558Srgrimes * And delete exports that are in the kernel for all local 6321558Srgrimes * file systems. 6331558Srgrimes * XXX: Should know how to handle all local exportable file systems 6341558Srgrimes * instead of just MOUNT_UFS. 6351558Srgrimes */ 6361558Srgrimes num = getmntinfo(&fsp, MNT_NOWAIT); 6371558Srgrimes for (i = 0; i < num; i++) { 6381558Srgrimes union { 6391558Srgrimes struct ufs_args ua; 6401558Srgrimes struct iso_args ia; 6411558Srgrimes struct mfs_args ma; 6421558Srgrimes } targs; 6431558Srgrimes 6441558Srgrimes switch (fsp->f_type) { 6451558Srgrimes case MOUNT_MFS: 6461558Srgrimes case MOUNT_UFS: 6471558Srgrimes case MOUNT_CD9660: 6481558Srgrimes targs.ua.fspec = NULL; 6491558Srgrimes targs.ua.export.ex_flags = MNT_DELEXPORT; 6501558Srgrimes if (mount(fsp->f_type, fsp->f_mntonname, 6511558Srgrimes fsp->f_flags | MNT_UPDATE, 6521558Srgrimes (caddr_t)&targs) < 0) 6531558Srgrimes syslog(LOG_ERR, "Can't delete exports for %s", 6541558Srgrimes fsp->f_mntonname); 6551558Srgrimes } 6561558Srgrimes fsp++; 6571558Srgrimes } 6581558Srgrimes 6591558Srgrimes /* 6601558Srgrimes * Read in the exports file and build the list, calling 6611558Srgrimes * mount() as we go along to push the export rules into the kernel. 6621558Srgrimes */ 6631558Srgrimes if ((exp_file = fopen(exname, "r")) == NULL) { 6641558Srgrimes syslog(LOG_ERR, "Can't open %s", exname); 6651558Srgrimes exit(2); 6661558Srgrimes } 6671558Srgrimes dirhead = (struct dirlist *)NULL; 6681558Srgrimes while (get_line()) { 6691558Srgrimes if (debug) 6701558Srgrimes fprintf(stderr,"Got line %s\n",line); 6711558Srgrimes cp = line; 6721558Srgrimes nextfield(&cp, &endcp); 6731558Srgrimes if (*cp == '#') 6741558Srgrimes goto nextline; 6751558Srgrimes 6761558Srgrimes /* 6771558Srgrimes * Set defaults. 6781558Srgrimes */ 6791558Srgrimes has_host = FALSE; 6801558Srgrimes anon = def_anon; 6811558Srgrimes exflags = MNT_EXPORTED; 6821558Srgrimes got_nondir = 0; 6831558Srgrimes opt_flags = 0; 6841558Srgrimes ep = (struct exportlist *)NULL; 6851558Srgrimes 6861558Srgrimes /* 6871558Srgrimes * Create new exports list entry 6881558Srgrimes */ 6891558Srgrimes len = endcp-cp; 6901558Srgrimes tgrp = grp = get_grp(); 6911558Srgrimes while (len > 0) { 6921558Srgrimes if (len > RPCMNT_NAMELEN) { 6931558Srgrimes getexp_err(ep, tgrp); 6941558Srgrimes goto nextline; 6951558Srgrimes } 6961558Srgrimes if (*cp == '-') { 6971558Srgrimes if (ep == (struct exportlist *)NULL) { 6981558Srgrimes getexp_err(ep, tgrp); 6991558Srgrimes goto nextline; 7001558Srgrimes } 7011558Srgrimes if (debug) 7021558Srgrimes fprintf(stderr, "doing opt %s\n", cp); 7031558Srgrimes got_nondir = 1; 7041558Srgrimes if (do_opt(&cp, &endcp, ep, grp, &has_host, 7051558Srgrimes &exflags, &anon)) { 7061558Srgrimes getexp_err(ep, tgrp); 7071558Srgrimes goto nextline; 7081558Srgrimes } 7091558Srgrimes } else if (*cp == '/') { 7101558Srgrimes savedc = *endcp; 7111558Srgrimes *endcp = '\0'; 7121558Srgrimes if (check_dirpath(cp) && 7131558Srgrimes statfs(cp, &fsb) >= 0) { 7141558Srgrimes if (got_nondir) { 7151558Srgrimes syslog(LOG_ERR, "Dirs must be first"); 7161558Srgrimes getexp_err(ep, tgrp); 7171558Srgrimes goto nextline; 7181558Srgrimes } 7191558Srgrimes if (ep) { 7201558Srgrimes if (ep->ex_fs.val[0] != fsb.f_fsid.val[0] || 7211558Srgrimes ep->ex_fs.val[1] != fsb.f_fsid.val[1]) { 7221558Srgrimes getexp_err(ep, tgrp); 7231558Srgrimes goto nextline; 7241558Srgrimes } 7251558Srgrimes } else { 7261558Srgrimes /* 7271558Srgrimes * See if this directory is already 7281558Srgrimes * in the list. 7291558Srgrimes */ 7301558Srgrimes ep = ex_search(&fsb.f_fsid); 7311558Srgrimes if (ep == (struct exportlist *)NULL) { 7321558Srgrimes ep = get_exp(); 7331558Srgrimes ep->ex_fs = fsb.f_fsid; 7341558Srgrimes ep->ex_fsdir = (char *) 7351558Srgrimes malloc(strlen(fsb.f_mntonname) + 1); 7361558Srgrimes if (ep->ex_fsdir) 7371558Srgrimes strcpy(ep->ex_fsdir, 7381558Srgrimes fsb.f_mntonname); 7391558Srgrimes else 7401558Srgrimes out_of_mem(); 7411558Srgrimes if (debug) 7421558Srgrimes fprintf(stderr, 7431558Srgrimes "Making new ep fs=0x%x,0x%x\n", 7441558Srgrimes fsb.f_fsid.val[0], 7451558Srgrimes fsb.f_fsid.val[1]); 7461558Srgrimes } else if (debug) 7471558Srgrimes fprintf(stderr, 7481558Srgrimes "Found ep fs=0x%x,0x%x\n", 7491558Srgrimes fsb.f_fsid.val[0], 7501558Srgrimes fsb.f_fsid.val[1]); 7511558Srgrimes } 7521558Srgrimes 7531558Srgrimes /* 7541558Srgrimes * Add dirpath to export mount point. 7551558Srgrimes */ 7561558Srgrimes dirp = add_expdir(&dirhead, cp, len); 7571558Srgrimes dirplen = len; 7581558Srgrimes } else { 7591558Srgrimes getexp_err(ep, tgrp); 7601558Srgrimes goto nextline; 7611558Srgrimes } 7621558Srgrimes *endcp = savedc; 7631558Srgrimes } else { 7641558Srgrimes savedc = *endcp; 7651558Srgrimes *endcp = '\0'; 7661558Srgrimes got_nondir = 1; 7671558Srgrimes if (ep == (struct exportlist *)NULL) { 7681558Srgrimes getexp_err(ep, tgrp); 7691558Srgrimes goto nextline; 7701558Srgrimes } 7711558Srgrimes 7721558Srgrimes /* 7731558Srgrimes * Get the host or netgroup. 7741558Srgrimes */ 7751558Srgrimes setnetgrent(cp); 7761558Srgrimes netgrp = getnetgrent(&hst, &usr, &dom); 7771558Srgrimes do { 7781558Srgrimes if (has_host) { 7791558Srgrimes grp->gr_next = get_grp(); 7801558Srgrimes grp = grp->gr_next; 7811558Srgrimes } 7821558Srgrimes if (netgrp) { 7831558Srgrimes if (get_host(hst, grp)) { 7841558Srgrimes syslog(LOG_ERR, "Bad netgroup %s", cp); 7851558Srgrimes getexp_err(ep, tgrp); 7861558Srgrimes goto nextline; 7871558Srgrimes } 7881558Srgrimes } else if (get_host(cp, grp)) { 7891558Srgrimes getexp_err(ep, tgrp); 7901558Srgrimes goto nextline; 7911558Srgrimes } 7921558Srgrimes has_host = TRUE; 7931558Srgrimes } while (netgrp && getnetgrent(&hst, &usr, &dom)); 7941558Srgrimes endnetgrent(); 7951558Srgrimes *endcp = savedc; 7961558Srgrimes } 7971558Srgrimes cp = endcp; 7981558Srgrimes nextfield(&cp, &endcp); 7991558Srgrimes len = endcp - cp; 8001558Srgrimes } 8011558Srgrimes if (check_options(dirhead)) { 8021558Srgrimes getexp_err(ep, tgrp); 8031558Srgrimes goto nextline; 8041558Srgrimes } 8051558Srgrimes if (!has_host) { 8061558Srgrimes grp->gr_type = GT_HOST; 8071558Srgrimes if (debug) 8081558Srgrimes fprintf(stderr,"Adding a default entry\n"); 8091558Srgrimes /* add a default group and make the grp list NULL */ 8101558Srgrimes hpe = (struct hostent *)malloc(sizeof(struct hostent)); 8111558Srgrimes if (hpe == (struct hostent *)NULL) 8121558Srgrimes out_of_mem(); 8131558Srgrimes hpe->h_name = "Default"; 8141558Srgrimes hpe->h_addrtype = AF_INET; 8151558Srgrimes hpe->h_length = sizeof (u_long); 8161558Srgrimes hpe->h_addr_list = (char **)NULL; 8171558Srgrimes grp->gr_ptr.gt_hostent = hpe; 8181558Srgrimes 8191558Srgrimes /* 8201558Srgrimes * Don't allow a network export coincide with a list of 8211558Srgrimes * host(s) on the same line. 8221558Srgrimes */ 8231558Srgrimes } else if ((opt_flags & OP_NET) && tgrp->gr_next) { 8241558Srgrimes getexp_err(ep, tgrp); 8251558Srgrimes goto nextline; 8261558Srgrimes } 8271558Srgrimes 8281558Srgrimes /* 8291558Srgrimes * Loop through hosts, pushing the exports into the kernel. 8301558Srgrimes * After loop, tgrp points to the start of the list and 8311558Srgrimes * grp points to the last entry in the list. 8321558Srgrimes */ 8331558Srgrimes grp = tgrp; 8341558Srgrimes do { 8351558Srgrimes if (do_mount(ep, grp, exflags, &anon, dirp, 8361558Srgrimes dirplen, &fsb)) { 8371558Srgrimes getexp_err(ep, tgrp); 8381558Srgrimes goto nextline; 8391558Srgrimes } 8401558Srgrimes } while (grp->gr_next && (grp = grp->gr_next)); 8411558Srgrimes 8421558Srgrimes /* 8431558Srgrimes * Success. Update the data structures. 8441558Srgrimes */ 8451558Srgrimes if (has_host) { 8461558Srgrimes hang_dirp(dirhead, tgrp, ep, (opt_flags & OP_ALLDIRS)); 8471558Srgrimes grp->gr_next = grphead; 8481558Srgrimes grphead = tgrp; 8491558Srgrimes } else { 8501558Srgrimes hang_dirp(dirhead, (struct grouplist *)NULL, ep, 8511558Srgrimes (opt_flags & OP_ALLDIRS)); 8521558Srgrimes free_grp(grp); 8531558Srgrimes } 8541558Srgrimes dirhead = (struct dirlist *)NULL; 8551558Srgrimes if ((ep->ex_flag & EX_LINKED) == 0) { 8561558Srgrimes ep2 = exphead; 8571558Srgrimes epp = &exphead; 8581558Srgrimes 8591558Srgrimes /* 8601558Srgrimes * Insert in the list in alphabetical order. 8611558Srgrimes */ 8621558Srgrimes while (ep2 && strcmp(ep2->ex_fsdir, ep->ex_fsdir) < 0) { 8631558Srgrimes epp = &ep2->ex_next; 8641558Srgrimes ep2 = ep2->ex_next; 8651558Srgrimes } 8661558Srgrimes if (ep2) 8671558Srgrimes ep->ex_next = ep2; 8681558Srgrimes *epp = ep; 8691558Srgrimes ep->ex_flag |= EX_LINKED; 8701558Srgrimes } 8711558Srgrimesnextline: 8721558Srgrimes if (dirhead) { 8731558Srgrimes free_dir(dirhead); 8741558Srgrimes dirhead = (struct dirlist *)NULL; 8751558Srgrimes } 8761558Srgrimes } 8771558Srgrimes fclose(exp_file); 8781558Srgrimes} 8791558Srgrimes 8801558Srgrimes/* 8811558Srgrimes * Allocate an export list element 8821558Srgrimes */ 8831558Srgrimesstruct exportlist * 8841558Srgrimesget_exp() 8851558Srgrimes{ 8861558Srgrimes struct exportlist *ep; 8871558Srgrimes 8881558Srgrimes ep = (struct exportlist *)malloc(sizeof (struct exportlist)); 8891558Srgrimes if (ep == (struct exportlist *)NULL) 8901558Srgrimes out_of_mem(); 8911558Srgrimes bzero((caddr_t)ep, sizeof (struct exportlist)); 8921558Srgrimes return (ep); 8931558Srgrimes} 8941558Srgrimes 8951558Srgrimes/* 8961558Srgrimes * Allocate a group list element 8971558Srgrimes */ 8981558Srgrimesstruct grouplist * 8991558Srgrimesget_grp() 9001558Srgrimes{ 9011558Srgrimes struct grouplist *gp; 9021558Srgrimes 9031558Srgrimes gp = (struct grouplist *)malloc(sizeof (struct grouplist)); 9041558Srgrimes if (gp == (struct grouplist *)NULL) 9051558Srgrimes out_of_mem(); 9061558Srgrimes bzero((caddr_t)gp, sizeof (struct grouplist)); 9071558Srgrimes return (gp); 9081558Srgrimes} 9091558Srgrimes 9101558Srgrimes/* 9111558Srgrimes * Clean up upon an error in get_exportlist(). 9121558Srgrimes */ 9131558Srgrimesvoid 9141558Srgrimesgetexp_err(ep, grp) 9151558Srgrimes struct exportlist *ep; 9161558Srgrimes struct grouplist *grp; 9171558Srgrimes{ 9181558Srgrimes struct grouplist *tgrp; 9191558Srgrimes 9201558Srgrimes syslog(LOG_ERR, "Bad exports list line %s", line); 9211558Srgrimes if (ep && (ep->ex_flag & EX_LINKED) == 0) 9221558Srgrimes free_exp(ep); 9231558Srgrimes while (grp) { 9241558Srgrimes tgrp = grp; 9251558Srgrimes grp = grp->gr_next; 9261558Srgrimes free_grp(tgrp); 9271558Srgrimes } 9281558Srgrimes} 9291558Srgrimes 9301558Srgrimes/* 9311558Srgrimes * Search the export list for a matching fs. 9321558Srgrimes */ 9331558Srgrimesstruct exportlist * 9341558Srgrimesex_search(fsid) 9351558Srgrimes fsid_t *fsid; 9361558Srgrimes{ 9371558Srgrimes struct exportlist *ep; 9381558Srgrimes 9391558Srgrimes ep = exphead; 9401558Srgrimes while (ep) { 9411558Srgrimes if (ep->ex_fs.val[0] == fsid->val[0] && 9421558Srgrimes ep->ex_fs.val[1] == fsid->val[1]) 9431558Srgrimes return (ep); 9441558Srgrimes ep = ep->ex_next; 9451558Srgrimes } 9461558Srgrimes return (ep); 9471558Srgrimes} 9481558Srgrimes 9491558Srgrimes/* 9501558Srgrimes * Add a directory path to the list. 9511558Srgrimes */ 9521558Srgrimeschar * 9531558Srgrimesadd_expdir(dpp, cp, len) 9541558Srgrimes struct dirlist **dpp; 9551558Srgrimes char *cp; 9561558Srgrimes int len; 9571558Srgrimes{ 9581558Srgrimes struct dirlist *dp; 9591558Srgrimes 9601558Srgrimes dp = (struct dirlist *)malloc(sizeof (struct dirlist) + len); 9611558Srgrimes dp->dp_left = *dpp; 9621558Srgrimes dp->dp_right = (struct dirlist *)NULL; 9631558Srgrimes dp->dp_flag = 0; 9641558Srgrimes dp->dp_hosts = (struct hostlist *)NULL; 9651558Srgrimes strcpy(dp->dp_dirp, cp); 9661558Srgrimes *dpp = dp; 9671558Srgrimes return (dp->dp_dirp); 9681558Srgrimes} 9691558Srgrimes 9701558Srgrimes/* 9711558Srgrimes * Hang the dir list element off the dirpath binary tree as required 9721558Srgrimes * and update the entry for host. 9731558Srgrimes */ 9741558Srgrimesvoid 9751558Srgrimeshang_dirp(dp, grp, ep, alldirs) 9761558Srgrimes struct dirlist *dp; 9771558Srgrimes struct grouplist *grp; 9781558Srgrimes struct exportlist *ep; 9791558Srgrimes int alldirs; 9801558Srgrimes{ 9811558Srgrimes struct hostlist *hp; 9821558Srgrimes struct dirlist *dp2; 9831558Srgrimes 9841558Srgrimes if (alldirs) { 9851558Srgrimes if (ep->ex_defdir) 9861558Srgrimes free((caddr_t)dp); 9871558Srgrimes else 9881558Srgrimes ep->ex_defdir = dp; 9891558Srgrimes if (grp == (struct grouplist *)NULL) 9901558Srgrimes ep->ex_defdir->dp_flag |= DP_DEFSET; 9911558Srgrimes else while (grp) { 9921558Srgrimes hp = get_ht(); 9931558Srgrimes hp->ht_grp = grp; 9941558Srgrimes hp->ht_next = ep->ex_defdir->dp_hosts; 9951558Srgrimes ep->ex_defdir->dp_hosts = hp; 9961558Srgrimes grp = grp->gr_next; 9971558Srgrimes } 9981558Srgrimes } else { 9991558Srgrimes 10001558Srgrimes /* 10011558Srgrimes * Loop throught the directories adding them to the tree. 10021558Srgrimes */ 10031558Srgrimes while (dp) { 10041558Srgrimes dp2 = dp->dp_left; 10051558Srgrimes add_dlist(&ep->ex_dirl, dp, grp); 10061558Srgrimes dp = dp2; 10071558Srgrimes } 10081558Srgrimes } 10091558Srgrimes} 10101558Srgrimes 10111558Srgrimes/* 10121558Srgrimes * Traverse the binary tree either updating a node that is already there 10131558Srgrimes * for the new directory or adding the new node. 10141558Srgrimes */ 10151558Srgrimesvoid 10161558Srgrimesadd_dlist(dpp, newdp, grp) 10171558Srgrimes struct dirlist **dpp; 10181558Srgrimes struct dirlist *newdp; 10191558Srgrimes struct grouplist *grp; 10201558Srgrimes{ 10211558Srgrimes struct dirlist *dp; 10221558Srgrimes struct hostlist *hp; 10231558Srgrimes int cmp; 10241558Srgrimes 10251558Srgrimes dp = *dpp; 10261558Srgrimes if (dp) { 10271558Srgrimes cmp = strcmp(dp->dp_dirp, newdp->dp_dirp); 10281558Srgrimes if (cmp > 0) { 10291558Srgrimes add_dlist(&dp->dp_left, newdp, grp); 10301558Srgrimes return; 10311558Srgrimes } else if (cmp < 0) { 10321558Srgrimes add_dlist(&dp->dp_right, newdp, grp); 10331558Srgrimes return; 10341558Srgrimes } else 10351558Srgrimes free((caddr_t)newdp); 10361558Srgrimes } else { 10371558Srgrimes dp = newdp; 10381558Srgrimes dp->dp_left = (struct dirlist *)NULL; 10391558Srgrimes *dpp = dp; 10401558Srgrimes } 10411558Srgrimes if (grp) { 10421558Srgrimes 10431558Srgrimes /* 10441558Srgrimes * Hang all of the host(s) off of the directory point. 10451558Srgrimes */ 10461558Srgrimes do { 10471558Srgrimes hp = get_ht(); 10481558Srgrimes hp->ht_grp = grp; 10491558Srgrimes hp->ht_next = dp->dp_hosts; 10501558Srgrimes dp->dp_hosts = hp; 10511558Srgrimes grp = grp->gr_next; 10521558Srgrimes } while (grp); 10531558Srgrimes } else 10541558Srgrimes dp->dp_flag |= DP_DEFSET; 10551558Srgrimes} 10561558Srgrimes 10571558Srgrimes/* 10581558Srgrimes * Search for a dirpath on the export point. 10591558Srgrimes */ 10601558Srgrimesstruct dirlist * 10611558Srgrimesdirp_search(dp, dirpath) 10621558Srgrimes struct dirlist *dp; 10631558Srgrimes char *dirpath; 10641558Srgrimes{ 10651558Srgrimes int cmp; 10661558Srgrimes 10671558Srgrimes if (dp) { 10681558Srgrimes cmp = strcmp(dp->dp_dirp, dirpath); 10691558Srgrimes if (cmp > 0) 10701558Srgrimes return (dirp_search(dp->dp_left, dirpath)); 10711558Srgrimes else if (cmp < 0) 10721558Srgrimes return (dirp_search(dp->dp_right, dirpath)); 10731558Srgrimes else 10741558Srgrimes return (dp); 10751558Srgrimes } 10761558Srgrimes return (dp); 10771558Srgrimes} 10781558Srgrimes 10791558Srgrimes/* 10801558Srgrimes * Scan for a host match in a directory tree. 10811558Srgrimes */ 10821558Srgrimesint 10831558Srgrimeschk_host(dp, saddr, defsetp) 10841558Srgrimes struct dirlist *dp; 10851558Srgrimes u_long saddr; 10861558Srgrimes int *defsetp; 10871558Srgrimes{ 10881558Srgrimes struct hostlist *hp; 10891558Srgrimes struct grouplist *grp; 10901558Srgrimes u_long **addrp; 10911558Srgrimes 10921558Srgrimes if (dp) { 10931558Srgrimes if (dp->dp_flag & DP_DEFSET) 10941558Srgrimes *defsetp = 1; 10951558Srgrimes hp = dp->dp_hosts; 10961558Srgrimes while (hp) { 10971558Srgrimes grp = hp->ht_grp; 10981558Srgrimes switch (grp->gr_type) { 10991558Srgrimes case GT_HOST: 11001558Srgrimes addrp = (u_long **) 11011558Srgrimes grp->gr_ptr.gt_hostent->h_addr_list; 11021558Srgrimes while (*addrp) { 11031558Srgrimes if (**addrp == saddr) 11041558Srgrimes return (1); 11051558Srgrimes addrp++; 11061558Srgrimes } 11071558Srgrimes break; 11081558Srgrimes case GT_NET: 11091558Srgrimes if ((saddr & grp->gr_ptr.gt_net.nt_mask) == 11101558Srgrimes grp->gr_ptr.gt_net.nt_net) 11111558Srgrimes return (1); 11121558Srgrimes break; 11131558Srgrimes }; 11141558Srgrimes hp = hp->ht_next; 11151558Srgrimes } 11161558Srgrimes } 11171558Srgrimes return (0); 11181558Srgrimes} 11191558Srgrimes 11201558Srgrimes/* 11211558Srgrimes * Scan tree for a host that matches the address. 11221558Srgrimes */ 11231558Srgrimesint 11241558Srgrimesscan_tree(dp, saddr) 11251558Srgrimes struct dirlist *dp; 11261558Srgrimes u_long saddr; 11271558Srgrimes{ 11281558Srgrimes int defset; 11291558Srgrimes 11301558Srgrimes if (dp) { 11311558Srgrimes if (scan_tree(dp->dp_left, saddr)) 11321558Srgrimes return (1); 11331558Srgrimes if (chk_host(dp, saddr, &defset)) 11341558Srgrimes return (1); 11351558Srgrimes if (scan_tree(dp->dp_right, saddr)) 11361558Srgrimes return (1); 11371558Srgrimes } 11381558Srgrimes return (0); 11391558Srgrimes} 11401558Srgrimes 11411558Srgrimes/* 11421558Srgrimes * Traverse the dirlist tree and free it up. 11431558Srgrimes */ 11441558Srgrimesvoid 11451558Srgrimesfree_dir(dp) 11461558Srgrimes struct dirlist *dp; 11471558Srgrimes{ 11481558Srgrimes 11491558Srgrimes if (dp) { 11501558Srgrimes free_dir(dp->dp_left); 11511558Srgrimes free_dir(dp->dp_right); 11521558Srgrimes free_host(dp->dp_hosts); 11531558Srgrimes free((caddr_t)dp); 11541558Srgrimes } 11551558Srgrimes} 11561558Srgrimes 11571558Srgrimes/* 11581558Srgrimes * Parse the option string and update fields. 11591558Srgrimes * Option arguments may either be -<option>=<value> or 11601558Srgrimes * -<option> <value> 11611558Srgrimes */ 11621558Srgrimesint 11631558Srgrimesdo_opt(cpp, endcpp, ep, grp, has_hostp, exflagsp, cr) 11641558Srgrimes char **cpp, **endcpp; 11651558Srgrimes struct exportlist *ep; 11661558Srgrimes struct grouplist *grp; 11671558Srgrimes int *has_hostp; 11681558Srgrimes int *exflagsp; 11691558Srgrimes struct ucred *cr; 11701558Srgrimes{ 11711558Srgrimes char *cpoptarg, *cpoptend; 11721558Srgrimes char *cp, *endcp, *cpopt, savedc, savedc2; 11731558Srgrimes int allflag, usedarg; 11741558Srgrimes 11751558Srgrimes cpopt = *cpp; 11761558Srgrimes cpopt++; 11771558Srgrimes cp = *endcpp; 11781558Srgrimes savedc = *cp; 11791558Srgrimes *cp = '\0'; 11801558Srgrimes while (cpopt && *cpopt) { 11811558Srgrimes allflag = 1; 11821558Srgrimes usedarg = -2; 11831558Srgrimes if (cpoptend = index(cpopt, ',')) { 11841558Srgrimes *cpoptend++ = '\0'; 11851558Srgrimes if (cpoptarg = index(cpopt, '=')) 11861558Srgrimes *cpoptarg++ = '\0'; 11871558Srgrimes } else { 11881558Srgrimes if (cpoptarg = index(cpopt, '=')) 11891558Srgrimes *cpoptarg++ = '\0'; 11901558Srgrimes else { 11911558Srgrimes *cp = savedc; 11921558Srgrimes nextfield(&cp, &endcp); 11931558Srgrimes **endcpp = '\0'; 11941558Srgrimes if (endcp > cp && *cp != '-') { 11951558Srgrimes cpoptarg = cp; 11961558Srgrimes savedc2 = *endcp; 11971558Srgrimes *endcp = '\0'; 11981558Srgrimes usedarg = 0; 11991558Srgrimes } 12001558Srgrimes } 12011558Srgrimes } 12021558Srgrimes if (!strcmp(cpopt, "ro") || !strcmp(cpopt, "o")) { 12031558Srgrimes *exflagsp |= MNT_EXRDONLY; 12041558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "maproot") || 12051558Srgrimes !(allflag = strcmp(cpopt, "mapall")) || 12061558Srgrimes !strcmp(cpopt, "root") || !strcmp(cpopt, "r"))) { 12071558Srgrimes usedarg++; 12081558Srgrimes parsecred(cpoptarg, cr); 12091558Srgrimes if (allflag == 0) { 12101558Srgrimes *exflagsp |= MNT_EXPORTANON; 12111558Srgrimes opt_flags |= OP_MAPALL; 12121558Srgrimes } else 12131558Srgrimes opt_flags |= OP_MAPROOT; 12141558Srgrimes } else if (!strcmp(cpopt, "kerb") || !strcmp(cpopt, "k")) { 12151558Srgrimes *exflagsp |= MNT_EXKERB; 12161558Srgrimes opt_flags |= OP_KERB; 12171558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "mask") || 12181558Srgrimes !strcmp(cpopt, "m"))) { 12191558Srgrimes if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 1)) { 12201558Srgrimes syslog(LOG_ERR, "Bad mask: %s", cpoptarg); 12211558Srgrimes return (1); 12221558Srgrimes } 12231558Srgrimes usedarg++; 12241558Srgrimes opt_flags |= OP_MASK; 12251558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "network") || 12261558Srgrimes !strcmp(cpopt, "n"))) { 12271558Srgrimes if (grp->gr_type != GT_NULL) { 12281558Srgrimes syslog(LOG_ERR, "Network/host conflict"); 12291558Srgrimes return (1); 12301558Srgrimes } else if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 0)) { 12311558Srgrimes syslog(LOG_ERR, "Bad net: %s", cpoptarg); 12321558Srgrimes return (1); 12331558Srgrimes } 12341558Srgrimes grp->gr_type = GT_NET; 12351558Srgrimes *has_hostp = 1; 12361558Srgrimes usedarg++; 12371558Srgrimes opt_flags |= OP_NET; 12381558Srgrimes } else if (!strcmp(cpopt, "alldirs")) { 12391558Srgrimes opt_flags |= OP_ALLDIRS; 12401558Srgrimes#ifdef ISO 12411558Srgrimes } else if (cpoptarg && !strcmp(cpopt, "iso")) { 12421558Srgrimes if (get_isoaddr(cpoptarg, grp)) { 12431558Srgrimes syslog(LOG_ERR, "Bad iso addr: %s", cpoptarg); 12441558Srgrimes return (1); 12451558Srgrimes } 12461558Srgrimes *has_hostp = 1; 12471558Srgrimes usedarg++; 12481558Srgrimes opt_flags |= OP_ISO; 12491558Srgrimes#endif /* ISO */ 12501558Srgrimes } else { 12511558Srgrimes syslog(LOG_ERR, "Bad opt %s", cpopt); 12521558Srgrimes return (1); 12531558Srgrimes } 12541558Srgrimes if (usedarg >= 0) { 12551558Srgrimes *endcp = savedc2; 12561558Srgrimes **endcpp = savedc; 12571558Srgrimes if (usedarg > 0) { 12581558Srgrimes *cpp = cp; 12591558Srgrimes *endcpp = endcp; 12601558Srgrimes } 12611558Srgrimes return (0); 12621558Srgrimes } 12631558Srgrimes cpopt = cpoptend; 12641558Srgrimes } 12651558Srgrimes **endcpp = savedc; 12661558Srgrimes return (0); 12671558Srgrimes} 12681558Srgrimes 12691558Srgrimes/* 12701558Srgrimes * Translate a character string to the corresponding list of network 12711558Srgrimes * addresses for a hostname. 12721558Srgrimes */ 12731558Srgrimesint 12741558Srgrimesget_host(cp, grp) 12751558Srgrimes char *cp; 12761558Srgrimes struct grouplist *grp; 12771558Srgrimes{ 12781558Srgrimes struct hostent *hp, *nhp; 12791558Srgrimes char **addrp, **naddrp; 12801558Srgrimes struct hostent t_host; 12811558Srgrimes int i; 12821558Srgrimes u_long saddr; 12831558Srgrimes char *aptr[2]; 12841558Srgrimes 12851558Srgrimes if (grp->gr_type != GT_NULL) 12861558Srgrimes return (1); 12871558Srgrimes if ((hp = gethostbyname(cp)) == NULL) { 12881558Srgrimes if (isdigit(*cp)) { 12891558Srgrimes saddr = inet_addr(cp); 12901558Srgrimes if (saddr == -1) { 12911558Srgrimes syslog(LOG_ERR, "Inet_addr failed"); 12921558Srgrimes return (1); 12931558Srgrimes } 12941558Srgrimes if ((hp = gethostbyaddr((caddr_t)&saddr, sizeof (saddr), 12951558Srgrimes AF_INET)) == NULL) { 12961558Srgrimes hp = &t_host; 12971558Srgrimes hp->h_name = cp; 12981558Srgrimes hp->h_addrtype = AF_INET; 12991558Srgrimes hp->h_length = sizeof (u_long); 13001558Srgrimes hp->h_addr_list = aptr; 13011558Srgrimes aptr[0] = (char *)&saddr; 13021558Srgrimes aptr[1] = (char *)NULL; 13031558Srgrimes } 13041558Srgrimes } else { 13051558Srgrimes syslog(LOG_ERR, "Gethostbyname failed"); 13061558Srgrimes return (1); 13071558Srgrimes } 13081558Srgrimes } 13091558Srgrimes grp->gr_type = GT_HOST; 13101558Srgrimes nhp = grp->gr_ptr.gt_hostent = (struct hostent *) 13111558Srgrimes malloc(sizeof(struct hostent)); 13121558Srgrimes if (nhp == (struct hostent *)NULL) 13131558Srgrimes out_of_mem(); 13141558Srgrimes bcopy((caddr_t)hp, (caddr_t)nhp, 13151558Srgrimes sizeof(struct hostent)); 13161558Srgrimes i = strlen(hp->h_name)+1; 13171558Srgrimes nhp->h_name = (char *)malloc(i); 13181558Srgrimes if (nhp->h_name == (char *)NULL) 13191558Srgrimes out_of_mem(); 13201558Srgrimes bcopy(hp->h_name, nhp->h_name, i); 13211558Srgrimes addrp = hp->h_addr_list; 13221558Srgrimes i = 1; 13231558Srgrimes while (*addrp++) 13241558Srgrimes i++; 13251558Srgrimes naddrp = nhp->h_addr_list = (char **) 13261558Srgrimes malloc(i*sizeof(char *)); 13271558Srgrimes if (naddrp == (char **)NULL) 13281558Srgrimes out_of_mem(); 13291558Srgrimes addrp = hp->h_addr_list; 13301558Srgrimes while (*addrp) { 13311558Srgrimes *naddrp = (char *) 13321558Srgrimes malloc(hp->h_length); 13331558Srgrimes if (*naddrp == (char *)NULL) 13341558Srgrimes out_of_mem(); 13351558Srgrimes bcopy(*addrp, *naddrp, 13361558Srgrimes hp->h_length); 13371558Srgrimes addrp++; 13381558Srgrimes naddrp++; 13391558Srgrimes } 13401558Srgrimes *naddrp = (char *)NULL; 13411558Srgrimes if (debug) 13421558Srgrimes fprintf(stderr, "got host %s\n", hp->h_name); 13431558Srgrimes return (0); 13441558Srgrimes} 13451558Srgrimes 13461558Srgrimes/* 13471558Srgrimes * Free up an exports list component 13481558Srgrimes */ 13491558Srgrimesvoid 13501558Srgrimesfree_exp(ep) 13511558Srgrimes struct exportlist *ep; 13521558Srgrimes{ 13531558Srgrimes 13541558Srgrimes if (ep->ex_defdir) { 13551558Srgrimes free_host(ep->ex_defdir->dp_hosts); 13561558Srgrimes free((caddr_t)ep->ex_defdir); 13571558Srgrimes } 13581558Srgrimes if (ep->ex_fsdir) 13591558Srgrimes free(ep->ex_fsdir); 13601558Srgrimes free_dir(ep->ex_dirl); 13611558Srgrimes free((caddr_t)ep); 13621558Srgrimes} 13631558Srgrimes 13641558Srgrimes/* 13651558Srgrimes * Free hosts. 13661558Srgrimes */ 13671558Srgrimesvoid 13681558Srgrimesfree_host(hp) 13691558Srgrimes struct hostlist *hp; 13701558Srgrimes{ 13711558Srgrimes struct hostlist *hp2; 13721558Srgrimes 13731558Srgrimes while (hp) { 13741558Srgrimes hp2 = hp; 13751558Srgrimes hp = hp->ht_next; 13761558Srgrimes free((caddr_t)hp2); 13771558Srgrimes } 13781558Srgrimes} 13791558Srgrimes 13801558Srgrimesstruct hostlist * 13811558Srgrimesget_ht() 13821558Srgrimes{ 13831558Srgrimes struct hostlist *hp; 13841558Srgrimes 13851558Srgrimes hp = (struct hostlist *)malloc(sizeof (struct hostlist)); 13861558Srgrimes if (hp == (struct hostlist *)NULL) 13871558Srgrimes out_of_mem(); 13881558Srgrimes hp->ht_next = (struct hostlist *)NULL; 13891558Srgrimes return (hp); 13901558Srgrimes} 13911558Srgrimes 13921558Srgrimes#ifdef ISO 13931558Srgrimes/* 13941558Srgrimes * Translate an iso address. 13951558Srgrimes */ 13961558Srgrimesget_isoaddr(cp, grp) 13971558Srgrimes char *cp; 13981558Srgrimes struct grouplist *grp; 13991558Srgrimes{ 14001558Srgrimes struct iso_addr *isop; 14011558Srgrimes struct sockaddr_iso *isoaddr; 14021558Srgrimes 14031558Srgrimes if (grp->gr_type != GT_NULL) 14041558Srgrimes return (1); 14051558Srgrimes if ((isop = iso_addr(cp)) == NULL) { 14061558Srgrimes syslog(LOG_ERR, 14071558Srgrimes "iso_addr failed, ignored"); 14081558Srgrimes return (1); 14091558Srgrimes } 14101558Srgrimes isoaddr = (struct sockaddr_iso *) 14111558Srgrimes malloc(sizeof (struct sockaddr_iso)); 14121558Srgrimes if (isoaddr == (struct sockaddr_iso *)NULL) 14131558Srgrimes out_of_mem(); 14141558Srgrimes bzero((caddr_t)isoaddr, sizeof (struct sockaddr_iso)); 14151558Srgrimes bcopy((caddr_t)isop, (caddr_t)&isoaddr->siso_addr, 14161558Srgrimes sizeof (struct iso_addr)); 14171558Srgrimes isoaddr->siso_len = sizeof (struct sockaddr_iso); 14181558Srgrimes isoaddr->siso_family = AF_ISO; 14191558Srgrimes grp->gr_type = GT_ISO; 14201558Srgrimes grp->gr_ptr.gt_isoaddr = isoaddr; 14211558Srgrimes return (0); 14221558Srgrimes} 14231558Srgrimes#endif /* ISO */ 14241558Srgrimes 14251558Srgrimes/* 14261558Srgrimes * Out of memory, fatal 14271558Srgrimes */ 14281558Srgrimesvoid 14291558Srgrimesout_of_mem() 14301558Srgrimes{ 14311558Srgrimes 14321558Srgrimes syslog(LOG_ERR, "Out of memory"); 14331558Srgrimes exit(2); 14341558Srgrimes} 14351558Srgrimes 14361558Srgrimes/* 14371558Srgrimes * Do the mount syscall with the update flag to push the export info into 14381558Srgrimes * the kernel. 14391558Srgrimes */ 14401558Srgrimesint 14411558Srgrimesdo_mount(ep, grp, exflags, anoncrp, dirp, dirplen, fsb) 14421558Srgrimes struct exportlist *ep; 14431558Srgrimes struct grouplist *grp; 14441558Srgrimes int exflags; 14451558Srgrimes struct ucred *anoncrp; 14461558Srgrimes char *dirp; 14471558Srgrimes int dirplen; 14481558Srgrimes struct statfs *fsb; 14491558Srgrimes{ 14501558Srgrimes char *cp = (char *)NULL; 14511558Srgrimes u_long **addrp; 14521558Srgrimes int done; 14531558Srgrimes char savedc = '\0'; 14541558Srgrimes struct sockaddr_in sin, imask; 14551558Srgrimes union { 14561558Srgrimes struct ufs_args ua; 14571558Srgrimes struct iso_args ia; 14581558Srgrimes struct mfs_args ma; 14591558Srgrimes } args; 14601558Srgrimes u_long net; 14611558Srgrimes 14621558Srgrimes args.ua.fspec = 0; 14631558Srgrimes args.ua.export.ex_flags = exflags; 14641558Srgrimes args.ua.export.ex_anon = *anoncrp; 14651558Srgrimes bzero((char *)&sin, sizeof(sin)); 14661558Srgrimes bzero((char *)&imask, sizeof(imask)); 14671558Srgrimes sin.sin_family = AF_INET; 14681558Srgrimes sin.sin_len = sizeof(sin); 14691558Srgrimes imask.sin_family = AF_INET; 14701558Srgrimes imask.sin_len = sizeof(sin); 14711558Srgrimes if (grp->gr_type == GT_HOST) 14721558Srgrimes addrp = (u_long **)grp->gr_ptr.gt_hostent->h_addr_list; 14731558Srgrimes else 14741558Srgrimes addrp = (u_long **)NULL; 14751558Srgrimes done = FALSE; 14761558Srgrimes while (!done) { 14771558Srgrimes switch (grp->gr_type) { 14781558Srgrimes case GT_HOST: 14791558Srgrimes if (addrp) { 14801558Srgrimes sin.sin_addr.s_addr = **addrp; 14811558Srgrimes args.ua.export.ex_addrlen = sizeof(sin); 14821558Srgrimes } else 14831558Srgrimes args.ua.export.ex_addrlen = 0; 14841558Srgrimes args.ua.export.ex_addr = (struct sockaddr *)&sin; 14851558Srgrimes args.ua.export.ex_masklen = 0; 14861558Srgrimes break; 14871558Srgrimes case GT_NET: 14881558Srgrimes if (grp->gr_ptr.gt_net.nt_mask) 14891558Srgrimes imask.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_mask; 14901558Srgrimes else { 14911558Srgrimes net = ntohl(grp->gr_ptr.gt_net.nt_net); 14921558Srgrimes if (IN_CLASSA(net)) 14931558Srgrimes imask.sin_addr.s_addr = inet_addr("255.0.0.0"); 14941558Srgrimes else if (IN_CLASSB(net)) 14951558Srgrimes imask.sin_addr.s_addr = 14961558Srgrimes inet_addr("255.255.0.0"); 14971558Srgrimes else 14981558Srgrimes imask.sin_addr.s_addr = 14991558Srgrimes inet_addr("255.255.255.0"); 15001558Srgrimes grp->gr_ptr.gt_net.nt_mask = imask.sin_addr.s_addr; 15011558Srgrimes } 15021558Srgrimes sin.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_net; 15031558Srgrimes args.ua.export.ex_addr = (struct sockaddr *)&sin; 15041558Srgrimes args.ua.export.ex_addrlen = sizeof (sin); 15051558Srgrimes args.ua.export.ex_mask = (struct sockaddr *)&imask; 15061558Srgrimes args.ua.export.ex_masklen = sizeof (imask); 15071558Srgrimes break; 15081558Srgrimes#ifdef ISO 15091558Srgrimes case GT_ISO: 15101558Srgrimes args.ua.export.ex_addr = 15111558Srgrimes (struct sockaddr *)grp->gr_ptr.gt_isoaddr; 15121558Srgrimes args.ua.export.ex_addrlen = 15131558Srgrimes sizeof(struct sockaddr_iso); 15141558Srgrimes args.ua.export.ex_masklen = 0; 15151558Srgrimes break; 15161558Srgrimes#endif /* ISO */ 15171558Srgrimes default: 15181558Srgrimes syslog(LOG_ERR, "Bad grouptype"); 15191558Srgrimes if (cp) 15201558Srgrimes *cp = savedc; 15211558Srgrimes return (1); 15221558Srgrimes }; 15231558Srgrimes 15241558Srgrimes /* 15251558Srgrimes * XXX: 15261558Srgrimes * Maybe I should just use the fsb->f_mntonname path instead 15271558Srgrimes * of looping back up the dirp to the mount point?? 15281558Srgrimes * Also, needs to know how to export all types of local 15291558Srgrimes * exportable file systems and not just MOUNT_UFS. 15301558Srgrimes */ 15311558Srgrimes while (mount(fsb->f_type, dirp, 15321558Srgrimes fsb->f_flags | MNT_UPDATE, (caddr_t)&args) < 0) { 15331558Srgrimes if (cp) 15341558Srgrimes *cp-- = savedc; 15351558Srgrimes else 15361558Srgrimes cp = dirp + dirplen - 1; 15371558Srgrimes if (errno == EPERM) { 15381558Srgrimes syslog(LOG_ERR, 15391558Srgrimes "Can't change attributes for %s.\n", dirp); 15401558Srgrimes return (1); 15411558Srgrimes } 15421558Srgrimes if (opt_flags & OP_ALLDIRS) { 15431558Srgrimes syslog(LOG_ERR, "Not root dir"); 15441558Srgrimes return (1); 15451558Srgrimes } 15461558Srgrimes /* back up over the last component */ 15471558Srgrimes while (*cp == '/' && cp > dirp) 15481558Srgrimes cp--; 15491558Srgrimes while (*(cp - 1) != '/' && cp > dirp) 15501558Srgrimes cp--; 15511558Srgrimes if (cp == dirp) { 15521558Srgrimes if (debug) 15531558Srgrimes fprintf(stderr,"mnt unsucc\n"); 15541558Srgrimes syslog(LOG_ERR, "Can't export %s", dirp); 15551558Srgrimes return (1); 15561558Srgrimes } 15571558Srgrimes savedc = *cp; 15581558Srgrimes *cp = '\0'; 15591558Srgrimes } 15601558Srgrimes if (addrp) { 15611558Srgrimes ++addrp; 15621558Srgrimes if (*addrp == (u_long *)NULL) 15631558Srgrimes done = TRUE; 15641558Srgrimes } else 15651558Srgrimes done = TRUE; 15661558Srgrimes } 15671558Srgrimes if (cp) 15681558Srgrimes *cp = savedc; 15691558Srgrimes return (0); 15701558Srgrimes} 15711558Srgrimes 15721558Srgrimes/* 15731558Srgrimes * Translate a net address. 15741558Srgrimes */ 15751558Srgrimesint 15761558Srgrimesget_net(cp, net, maskflg) 15771558Srgrimes char *cp; 15781558Srgrimes struct netmsk *net; 15791558Srgrimes int maskflg; 15801558Srgrimes{ 15811558Srgrimes struct netent *np; 15821558Srgrimes long netaddr; 15831558Srgrimes struct in_addr inetaddr, inetaddr2; 15841558Srgrimes char *name; 15851558Srgrimes 15861558Srgrimes if (np = getnetbyname(cp)) 15871558Srgrimes inetaddr = inet_makeaddr(np->n_net, 0); 15881558Srgrimes else if (isdigit(*cp)) { 15891558Srgrimes if ((netaddr = inet_network(cp)) == -1) 15901558Srgrimes return (1); 15911558Srgrimes inetaddr = inet_makeaddr(netaddr, 0); 15921558Srgrimes /* 15931558Srgrimes * Due to arbritrary subnet masks, you don't know how many 15941558Srgrimes * bits to shift the address to make it into a network, 15951558Srgrimes * however you do know how to make a network address into 15961558Srgrimes * a host with host == 0 and then compare them. 15971558Srgrimes * (What a pest) 15981558Srgrimes */ 15991558Srgrimes if (!maskflg) { 16001558Srgrimes setnetent(0); 16011558Srgrimes while (np = getnetent()) { 16021558Srgrimes inetaddr2 = inet_makeaddr(np->n_net, 0); 16031558Srgrimes if (inetaddr2.s_addr == inetaddr.s_addr) 16041558Srgrimes break; 16051558Srgrimes } 16061558Srgrimes endnetent(); 16071558Srgrimes } 16081558Srgrimes } else 16091558Srgrimes return (1); 16101558Srgrimes if (maskflg) 16111558Srgrimes net->nt_mask = inetaddr.s_addr; 16121558Srgrimes else { 16131558Srgrimes if (np) 16141558Srgrimes name = np->n_name; 16151558Srgrimes else 16161558Srgrimes name = inet_ntoa(inetaddr); 16171558Srgrimes net->nt_name = (char *)malloc(strlen(name) + 1); 16181558Srgrimes if (net->nt_name == (char *)NULL) 16191558Srgrimes out_of_mem(); 16201558Srgrimes strcpy(net->nt_name, name); 16211558Srgrimes net->nt_net = inetaddr.s_addr; 16221558Srgrimes } 16231558Srgrimes return (0); 16241558Srgrimes} 16251558Srgrimes 16261558Srgrimes/* 16271558Srgrimes * Parse out the next white space separated field 16281558Srgrimes */ 16291558Srgrimesvoid 16301558Srgrimesnextfield(cp, endcp) 16311558Srgrimes char **cp; 16321558Srgrimes char **endcp; 16331558Srgrimes{ 16341558Srgrimes char *p; 16351558Srgrimes 16361558Srgrimes p = *cp; 16371558Srgrimes while (*p == ' ' || *p == '\t') 16381558Srgrimes p++; 16391558Srgrimes if (*p == '\n' || *p == '\0') 16401558Srgrimes *cp = *endcp = p; 16411558Srgrimes else { 16421558Srgrimes *cp = p++; 16431558Srgrimes while (*p != ' ' && *p != '\t' && *p != '\n' && *p != '\0') 16441558Srgrimes p++; 16451558Srgrimes *endcp = p; 16461558Srgrimes } 16471558Srgrimes} 16481558Srgrimes 16491558Srgrimes/* 16501558Srgrimes * Get an exports file line. Skip over blank lines and handle line 16511558Srgrimes * continuations. 16521558Srgrimes */ 16531558Srgrimesint 16541558Srgrimesget_line() 16551558Srgrimes{ 16561558Srgrimes char *p, *cp; 16571558Srgrimes int len; 16581558Srgrimes int totlen, cont_line; 16591558Srgrimes 16601558Srgrimes /* 16611558Srgrimes * Loop around ignoring blank lines and getting all continuation lines. 16621558Srgrimes */ 16631558Srgrimes p = line; 16641558Srgrimes totlen = 0; 16651558Srgrimes do { 16661558Srgrimes if (fgets(p, LINESIZ - totlen, exp_file) == NULL) 16671558Srgrimes return (0); 16681558Srgrimes len = strlen(p); 16691558Srgrimes cp = p + len - 1; 16701558Srgrimes cont_line = 0; 16711558Srgrimes while (cp >= p && 16721558Srgrimes (*cp == ' ' || *cp == '\t' || *cp == '\n' || *cp == '\\')) { 16731558Srgrimes if (*cp == '\\') 16741558Srgrimes cont_line = 1; 16751558Srgrimes cp--; 16761558Srgrimes len--; 16771558Srgrimes } 16781558Srgrimes *++cp = '\0'; 16791558Srgrimes if (len > 0) { 16801558Srgrimes totlen += len; 16811558Srgrimes if (totlen >= LINESIZ) { 16821558Srgrimes syslog(LOG_ERR, "Exports line too long"); 16831558Srgrimes exit(2); 16841558Srgrimes } 16851558Srgrimes p = cp; 16861558Srgrimes } 16871558Srgrimes } while (totlen == 0 || cont_line); 16881558Srgrimes return (1); 16891558Srgrimes} 16901558Srgrimes 16911558Srgrimes/* 16921558Srgrimes * Parse a description of a credential. 16931558Srgrimes */ 16941558Srgrimesvoid 16951558Srgrimesparsecred(namelist, cr) 16961558Srgrimes char *namelist; 16971558Srgrimes struct ucred *cr; 16981558Srgrimes{ 16991558Srgrimes char *name; 17001558Srgrimes int cnt; 17011558Srgrimes char *names; 17021558Srgrimes struct passwd *pw; 17031558Srgrimes struct group *gr; 17041558Srgrimes int ngroups, groups[NGROUPS + 1]; 17051558Srgrimes 17061558Srgrimes /* 17071558Srgrimes * Set up the unpriviledged user. 17081558Srgrimes */ 17091558Srgrimes cr->cr_ref = 1; 17101558Srgrimes cr->cr_uid = -2; 17111558Srgrimes cr->cr_groups[0] = -2; 17121558Srgrimes cr->cr_ngroups = 1; 17131558Srgrimes /* 17141558Srgrimes * Get the user's password table entry. 17151558Srgrimes */ 17161558Srgrimes names = strsep(&namelist, " \t\n"); 17171558Srgrimes name = strsep(&names, ":"); 17181558Srgrimes if (isdigit(*name) || *name == '-') 17191558Srgrimes pw = getpwuid(atoi(name)); 17201558Srgrimes else 17211558Srgrimes pw = getpwnam(name); 17221558Srgrimes /* 17231558Srgrimes * Credentials specified as those of a user. 17241558Srgrimes */ 17251558Srgrimes if (names == NULL) { 17261558Srgrimes if (pw == NULL) { 17271558Srgrimes syslog(LOG_ERR, "Unknown user: %s", name); 17281558Srgrimes return; 17291558Srgrimes } 17301558Srgrimes cr->cr_uid = pw->pw_uid; 17311558Srgrimes ngroups = NGROUPS + 1; 17321558Srgrimes if (getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups)) 17331558Srgrimes syslog(LOG_ERR, "Too many groups"); 17341558Srgrimes /* 17351558Srgrimes * Convert from int's to gid_t's and compress out duplicate 17361558Srgrimes */ 17371558Srgrimes cr->cr_ngroups = ngroups - 1; 17381558Srgrimes cr->cr_groups[0] = groups[0]; 17391558Srgrimes for (cnt = 2; cnt < ngroups; cnt++) 17401558Srgrimes cr->cr_groups[cnt - 1] = groups[cnt]; 17411558Srgrimes return; 17421558Srgrimes } 17431558Srgrimes /* 17441558Srgrimes * Explicit credential specified as a colon separated list: 17451558Srgrimes * uid:gid:gid:... 17461558Srgrimes */ 17471558Srgrimes if (pw != NULL) 17481558Srgrimes cr->cr_uid = pw->pw_uid; 17491558Srgrimes else if (isdigit(*name) || *name == '-') 17501558Srgrimes cr->cr_uid = atoi(name); 17511558Srgrimes else { 17521558Srgrimes syslog(LOG_ERR, "Unknown user: %s", name); 17531558Srgrimes return; 17541558Srgrimes } 17551558Srgrimes cr->cr_ngroups = 0; 17561558Srgrimes while (names != NULL && *names != '\0' && cr->cr_ngroups < NGROUPS) { 17571558Srgrimes name = strsep(&names, ":"); 17581558Srgrimes if (isdigit(*name) || *name == '-') { 17591558Srgrimes cr->cr_groups[cr->cr_ngroups++] = atoi(name); 17601558Srgrimes } else { 17611558Srgrimes if ((gr = getgrnam(name)) == NULL) { 17621558Srgrimes syslog(LOG_ERR, "Unknown group: %s", name); 17631558Srgrimes continue; 17641558Srgrimes } 17651558Srgrimes cr->cr_groups[cr->cr_ngroups++] = gr->gr_gid; 17661558Srgrimes } 17671558Srgrimes } 17681558Srgrimes if (names != NULL && *names != '\0' && cr->cr_ngroups == NGROUPS) 17691558Srgrimes syslog(LOG_ERR, "Too many groups"); 17701558Srgrimes} 17711558Srgrimes 17721558Srgrimes#define STRSIZ (RPCMNT_NAMELEN+RPCMNT_PATHLEN+50) 17731558Srgrimes/* 17741558Srgrimes * Routines that maintain the remote mounttab 17751558Srgrimes */ 17761558Srgrimesvoid 17771558Srgrimesget_mountlist() 17781558Srgrimes{ 17791558Srgrimes struct mountlist *mlp, **mlpp; 17801558Srgrimes char *eos, *dirp; 17811558Srgrimes int len; 17821558Srgrimes char str[STRSIZ]; 17831558Srgrimes FILE *mlfile; 17841558Srgrimes 17851558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "r")) == NULL) { 17861558Srgrimes syslog(LOG_ERR, "Can't open %s", _PATH_RMOUNTLIST); 17871558Srgrimes return; 17881558Srgrimes } 17891558Srgrimes mlpp = &mlhead; 17901558Srgrimes while (fgets(str, STRSIZ, mlfile) != NULL) { 17911558Srgrimes if ((dirp = index(str, '\t')) == NULL && 17921558Srgrimes (dirp = index(str, ' ')) == NULL) 17931558Srgrimes continue; 17941558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 17951558Srgrimes len = dirp-str; 17961558Srgrimes if (len > RPCMNT_NAMELEN) 17971558Srgrimes len = RPCMNT_NAMELEN; 17981558Srgrimes bcopy(str, mlp->ml_host, len); 17991558Srgrimes mlp->ml_host[len] = '\0'; 18001558Srgrimes while (*dirp == '\t' || *dirp == ' ') 18011558Srgrimes dirp++; 18021558Srgrimes if ((eos = index(dirp, '\t')) == NULL && 18031558Srgrimes (eos = index(dirp, ' ')) == NULL && 18041558Srgrimes (eos = index(dirp, '\n')) == NULL) 18051558Srgrimes len = strlen(dirp); 18061558Srgrimes else 18071558Srgrimes len = eos-dirp; 18081558Srgrimes if (len > RPCMNT_PATHLEN) 18091558Srgrimes len = RPCMNT_PATHLEN; 18101558Srgrimes bcopy(dirp, mlp->ml_dirp, len); 18111558Srgrimes mlp->ml_dirp[len] = '\0'; 18121558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 18131558Srgrimes *mlpp = mlp; 18141558Srgrimes mlpp = &mlp->ml_next; 18151558Srgrimes } 18161558Srgrimes fclose(mlfile); 18171558Srgrimes} 18181558Srgrimes 18191558Srgrimesvoid 18201558Srgrimesdel_mlist(hostp, dirp) 18211558Srgrimes char *hostp, *dirp; 18221558Srgrimes{ 18231558Srgrimes struct mountlist *mlp, **mlpp; 18241558Srgrimes struct mountlist *mlp2; 18251558Srgrimes FILE *mlfile; 18261558Srgrimes int fnd = 0; 18271558Srgrimes 18281558Srgrimes mlpp = &mlhead; 18291558Srgrimes mlp = mlhead; 18301558Srgrimes while (mlp) { 18311558Srgrimes if (!strcmp(mlp->ml_host, hostp) && 18321558Srgrimes (!dirp || !strcmp(mlp->ml_dirp, dirp))) { 18331558Srgrimes fnd = 1; 18341558Srgrimes mlp2 = mlp; 18351558Srgrimes *mlpp = mlp = mlp->ml_next; 18361558Srgrimes free((caddr_t)mlp2); 18371558Srgrimes } else { 18381558Srgrimes mlpp = &mlp->ml_next; 18391558Srgrimes mlp = mlp->ml_next; 18401558Srgrimes } 18411558Srgrimes } 18421558Srgrimes if (fnd) { 18431558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "w")) == NULL) { 18441558Srgrimes syslog(LOG_ERR,"Can't update %s", _PATH_RMOUNTLIST); 18451558Srgrimes return; 18461558Srgrimes } 18471558Srgrimes mlp = mlhead; 18481558Srgrimes while (mlp) { 18491558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 18501558Srgrimes mlp = mlp->ml_next; 18511558Srgrimes } 18521558Srgrimes fclose(mlfile); 18531558Srgrimes } 18541558Srgrimes} 18551558Srgrimes 18561558Srgrimesvoid 18571558Srgrimesadd_mlist(hostp, dirp) 18581558Srgrimes char *hostp, *dirp; 18591558Srgrimes{ 18601558Srgrimes struct mountlist *mlp, **mlpp; 18611558Srgrimes FILE *mlfile; 18621558Srgrimes 18631558Srgrimes mlpp = &mlhead; 18641558Srgrimes mlp = mlhead; 18651558Srgrimes while (mlp) { 18661558Srgrimes if (!strcmp(mlp->ml_host, hostp) && !strcmp(mlp->ml_dirp, dirp)) 18671558Srgrimes return; 18681558Srgrimes mlpp = &mlp->ml_next; 18691558Srgrimes mlp = mlp->ml_next; 18701558Srgrimes } 18711558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 18721558Srgrimes strncpy(mlp->ml_host, hostp, RPCMNT_NAMELEN); 18731558Srgrimes mlp->ml_host[RPCMNT_NAMELEN] = '\0'; 18741558Srgrimes strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN); 18751558Srgrimes mlp->ml_dirp[RPCMNT_PATHLEN] = '\0'; 18761558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 18771558Srgrimes *mlpp = mlp; 18781558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "a")) == NULL) { 18791558Srgrimes syslog(LOG_ERR, "Can't update %s", _PATH_RMOUNTLIST); 18801558Srgrimes return; 18811558Srgrimes } 18821558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 18831558Srgrimes fclose(mlfile); 18841558Srgrimes} 18851558Srgrimes 18861558Srgrimes/* 18871558Srgrimes * This function is called via. SIGTERM when the system is going down. 18881558Srgrimes * It sends a broadcast RPCMNT_UMNTALL. 18891558Srgrimes */ 18901558Srgrimesvoid 18911558Srgrimessend_umntall() 18921558Srgrimes{ 18931558Srgrimes (void) clnt_broadcast(RPCPROG_MNT, RPCMNT_VER1, RPCMNT_UMNTALL, 18941558Srgrimes xdr_void, (caddr_t)0, xdr_void, (caddr_t)0, umntall_each); 18951558Srgrimes exit(0); 18961558Srgrimes} 18971558Srgrimes 18981558Srgrimesint 18991558Srgrimesumntall_each(resultsp, raddr) 19001558Srgrimes caddr_t resultsp; 19011558Srgrimes struct sockaddr_in *raddr; 19021558Srgrimes{ 19031558Srgrimes return (1); 19041558Srgrimes} 19051558Srgrimes 19061558Srgrimes/* 19071558Srgrimes * Free up a group list. 19081558Srgrimes */ 19091558Srgrimesvoid 19101558Srgrimesfree_grp(grp) 19111558Srgrimes struct grouplist *grp; 19121558Srgrimes{ 19131558Srgrimes char **addrp; 19141558Srgrimes 19151558Srgrimes if (grp->gr_type == GT_HOST) { 19161558Srgrimes if (grp->gr_ptr.gt_hostent->h_name) { 19171558Srgrimes addrp = grp->gr_ptr.gt_hostent->h_addr_list; 19181558Srgrimes while (addrp && *addrp) 19191558Srgrimes free(*addrp++); 19201558Srgrimes free((caddr_t)grp->gr_ptr.gt_hostent->h_addr_list); 19211558Srgrimes free(grp->gr_ptr.gt_hostent->h_name); 19221558Srgrimes } 19231558Srgrimes free((caddr_t)grp->gr_ptr.gt_hostent); 19241558Srgrimes } else if (grp->gr_type == GT_NET) { 19251558Srgrimes if (grp->gr_ptr.gt_net.nt_name) 19261558Srgrimes free(grp->gr_ptr.gt_net.nt_name); 19271558Srgrimes } 19281558Srgrimes#ifdef ISO 19291558Srgrimes else if (grp->gr_type == GT_ISO) 19301558Srgrimes free((caddr_t)grp->gr_ptr.gt_isoaddr); 19311558Srgrimes#endif 19321558Srgrimes free((caddr_t)grp); 19331558Srgrimes} 19341558Srgrimes 19351558Srgrimes#ifdef DEBUG 19361558Srgrimesvoid 19371558SrgrimesSYSLOG(int pri, const char *fmt, ...) 19381558Srgrimes{ 19391558Srgrimes va_list ap; 19401558Srgrimes 19411558Srgrimes va_start(ap, fmt); 19421558Srgrimes vfprintf(stderr, fmt, ap); 19431558Srgrimes va_end(ap); 19441558Srgrimes} 19451558Srgrimes#endif /* DEBUG */ 19461558Srgrimes 19471558Srgrimes/* 19481558Srgrimes * Check options for consistency. 19491558Srgrimes */ 19501558Srgrimesint 19511558Srgrimescheck_options(dp) 19521558Srgrimes struct dirlist *dp; 19531558Srgrimes{ 19541558Srgrimes 19551558Srgrimes if (dp == (struct dirlist *)NULL) 19561558Srgrimes return (1); 19571558Srgrimes if ((opt_flags & (OP_MAPROOT | OP_MAPALL)) == (OP_MAPROOT | OP_MAPALL) || 19581558Srgrimes (opt_flags & (OP_MAPROOT | OP_KERB)) == (OP_MAPROOT | OP_KERB) || 19591558Srgrimes (opt_flags & (OP_MAPALL | OP_KERB)) == (OP_MAPALL | OP_KERB)) { 19601558Srgrimes syslog(LOG_ERR, "-mapall, -maproot and -kerb mutually exclusive"); 19611558Srgrimes return (1); 19621558Srgrimes } 19631558Srgrimes if ((opt_flags & OP_MASK) && (opt_flags & OP_NET) == 0) { 19641558Srgrimes syslog(LOG_ERR, "-mask requires -net"); 19651558Srgrimes return (1); 19661558Srgrimes } 19671558Srgrimes if ((opt_flags & (OP_NET | OP_ISO)) == (OP_NET | OP_ISO)) { 19681558Srgrimes syslog(LOG_ERR, "-net and -iso mutually exclusive"); 19691558Srgrimes return (1); 19701558Srgrimes } 19711558Srgrimes if ((opt_flags & OP_ALLDIRS) && dp->dp_left) { 19721558Srgrimes syslog(LOG_ERR, "-alldir has multiple directories"); 19731558Srgrimes return (1); 19741558Srgrimes } 19751558Srgrimes return (0); 19761558Srgrimes} 19771558Srgrimes 19781558Srgrimes/* 19791558Srgrimes * Check an absolute directory path for any symbolic links. Return true 19801558Srgrimes * if no symbolic links are found. 19811558Srgrimes */ 19821558Srgrimesint 19831558Srgrimescheck_dirpath(dirp) 19841558Srgrimes char *dirp; 19851558Srgrimes{ 19861558Srgrimes char *cp; 19871558Srgrimes int ret = 1; 19881558Srgrimes struct stat sb; 19891558Srgrimes 19901558Srgrimes cp = dirp + 1; 19911558Srgrimes while (*cp && ret) { 19921558Srgrimes if (*cp == '/') { 19931558Srgrimes *cp = '\0'; 19941558Srgrimes if (lstat(dirp, &sb) < 0 || 19951558Srgrimes (sb.st_mode & S_IFMT) != S_IFDIR) 19961558Srgrimes ret = 0; 19971558Srgrimes *cp = '/'; 19981558Srgrimes } 19991558Srgrimes cp++; 20001558Srgrimes } 20011558Srgrimes if (lstat(dirp, &sb) < 0 || 20021558Srgrimes (sb.st_mode & S_IFMT) != S_IFDIR) 20031558Srgrimes ret = 0; 20041558Srgrimes return (ret); 20051558Srgrimes} 2006