mountd.c revision 7401
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"; 412999Swollman#endif /*not lint*/ 421558Srgrimes 431558Srgrimes#ifndef lint 442999Swollman/*static char sccsid[] = "From: @(#)mountd.c 8.8 (Berkeley) 2/20/94";*/ 452999Swollmanstatic const char rcsid[] = 467401Swpaul "$Id: mountd.c,v 1.4 1994/12/02 02:58:56 wollman Exp $"; 472999Swollman#endif /*not lint*/ 481558Srgrimes 491558Srgrimes#include <sys/param.h> 501558Srgrimes#include <sys/file.h> 511558Srgrimes#include <sys/ioctl.h> 521558Srgrimes#include <sys/mount.h> 531558Srgrimes#include <sys/socket.h> 541558Srgrimes#include <sys/stat.h> 551558Srgrimes#include <sys/syslog.h> 561558Srgrimes#include <sys/ucred.h> 571558Srgrimes 581558Srgrimes#include <rpc/rpc.h> 591558Srgrimes#include <rpc/pmap_clnt.h> 601558Srgrimes#include <rpc/pmap_prot.h> 611558Srgrimes#ifdef ISO 621558Srgrimes#include <netiso/iso.h> 631558Srgrimes#endif 641558Srgrimes#include <nfs/rpcv2.h> 651558Srgrimes#include <nfs/nfsv2.h> 661558Srgrimes 671558Srgrimes#include <arpa/inet.h> 681558Srgrimes 691558Srgrimes#include <ctype.h> 701558Srgrimes#include <errno.h> 711558Srgrimes#include <grp.h> 721558Srgrimes#include <netdb.h> 731558Srgrimes#include <pwd.h> 741558Srgrimes#include <signal.h> 751558Srgrimes#include <stdio.h> 761558Srgrimes#include <stdlib.h> 771558Srgrimes#include <string.h> 781558Srgrimes#include <unistd.h> 791558Srgrimes#include "pathnames.h" 801558Srgrimes 811558Srgrimes#ifdef DEBUG 821558Srgrimes#include <stdarg.h> 831558Srgrimes#endif 841558Srgrimes 851558Srgrimes/* 861558Srgrimes * Structures for keeping the mount list and export list 871558Srgrimes */ 881558Srgrimesstruct mountlist { 891558Srgrimes struct mountlist *ml_next; 901558Srgrimes char ml_host[RPCMNT_NAMELEN+1]; 911558Srgrimes char ml_dirp[RPCMNT_PATHLEN+1]; 921558Srgrimes}; 931558Srgrimes 941558Srgrimesstruct dirlist { 951558Srgrimes struct dirlist *dp_left; 961558Srgrimes struct dirlist *dp_right; 971558Srgrimes int dp_flag; 981558Srgrimes struct hostlist *dp_hosts; /* List of hosts this dir exported to */ 991558Srgrimes char dp_dirp[1]; /* Actually malloc'd to size of dir */ 1001558Srgrimes}; 1011558Srgrimes/* dp_flag bits */ 1021558Srgrimes#define DP_DEFSET 0x1 1031558Srgrimes 1041558Srgrimesstruct exportlist { 1051558Srgrimes struct exportlist *ex_next; 1061558Srgrimes struct dirlist *ex_dirl; 1071558Srgrimes struct dirlist *ex_defdir; 1081558Srgrimes int ex_flag; 1091558Srgrimes fsid_t ex_fs; 1101558Srgrimes char *ex_fsdir; 1111558Srgrimes}; 1121558Srgrimes/* ex_flag bits */ 1131558Srgrimes#define EX_LINKED 0x1 1141558Srgrimes 1151558Srgrimesstruct netmsk { 1161558Srgrimes u_long nt_net; 1171558Srgrimes u_long nt_mask; 1181558Srgrimes char *nt_name; 1191558Srgrimes}; 1201558Srgrimes 1211558Srgrimesunion grouptypes { 1221558Srgrimes struct hostent *gt_hostent; 1231558Srgrimes struct netmsk gt_net; 1241558Srgrimes#ifdef ISO 1251558Srgrimes struct sockaddr_iso *gt_isoaddr; 1261558Srgrimes#endif 1271558Srgrimes}; 1281558Srgrimes 1291558Srgrimesstruct grouplist { 1301558Srgrimes int gr_type; 1311558Srgrimes union grouptypes gr_ptr; 1321558Srgrimes struct grouplist *gr_next; 1331558Srgrimes}; 1341558Srgrimes/* Group types */ 1351558Srgrimes#define GT_NULL 0x0 1361558Srgrimes#define GT_HOST 0x1 1371558Srgrimes#define GT_NET 0x2 1381558Srgrimes#define GT_ISO 0x4 1397401Swpaul#define GT_IGNORE 0x5 1401558Srgrimes 1411558Srgrimesstruct hostlist { 1421558Srgrimes struct grouplist *ht_grp; 1431558Srgrimes struct hostlist *ht_next; 1441558Srgrimes}; 1451558Srgrimes 1461558Srgrimes/* Global defs */ 1471558Srgrimeschar *add_expdir __P((struct dirlist **, char *, int)); 1481558Srgrimesvoid add_dlist __P((struct dirlist **, struct dirlist *, 1491558Srgrimes struct grouplist *)); 1501558Srgrimesvoid add_mlist __P((char *, char *)); 1511558Srgrimesint check_dirpath __P((char *)); 1521558Srgrimesint check_options __P((struct dirlist *)); 1531558Srgrimesint chk_host __P((struct dirlist *, u_long, int *)); 1541558Srgrimesvoid del_mlist __P((char *, char *)); 1551558Srgrimesstruct dirlist *dirp_search __P((struct dirlist *, char *)); 1561558Srgrimesint do_mount __P((struct exportlist *, struct grouplist *, int, 1571558Srgrimes struct ucred *, char *, int, struct statfs *)); 1581558Srgrimesint do_opt __P((char **, char **, struct exportlist *, struct grouplist *, 1591558Srgrimes int *, int *, struct ucred *)); 1601558Srgrimesstruct exportlist *ex_search __P((fsid_t *)); 1611558Srgrimesstruct exportlist *get_exp __P((void)); 1621558Srgrimesvoid free_dir __P((struct dirlist *)); 1631558Srgrimesvoid free_exp __P((struct exportlist *)); 1641558Srgrimesvoid free_grp __P((struct grouplist *)); 1651558Srgrimesvoid free_host __P((struct hostlist *)); 1661558Srgrimesvoid get_exportlist __P((void)); 1677401Swpaulint get_host __P((char *, struct grouplist *, struct grouplist *)); 1681558Srgrimesstruct hostlist *get_ht __P((void)); 1691558Srgrimesint get_line __P((void)); 1701558Srgrimesvoid get_mountlist __P((void)); 1711558Srgrimesint get_net __P((char *, struct netmsk *, int)); 1721558Srgrimesvoid getexp_err __P((struct exportlist *, struct grouplist *)); 1731558Srgrimesstruct grouplist *get_grp __P((void)); 1741558Srgrimesvoid hang_dirp __P((struct dirlist *, struct grouplist *, 1751558Srgrimes struct exportlist *, int)); 1761558Srgrimesvoid mntsrv __P((struct svc_req *, SVCXPRT *)); 1771558Srgrimesvoid nextfield __P((char **, char **)); 1781558Srgrimesvoid out_of_mem __P((void)); 1791558Srgrimesvoid parsecred __P((char *, struct ucred *)); 1801558Srgrimesint put_exlist __P((struct dirlist *, XDR *, struct dirlist *, int *)); 1811558Srgrimesint scan_tree __P((struct dirlist *, u_long)); 1821558Srgrimesvoid send_umntall __P((void)); 1831558Srgrimesint umntall_each __P((caddr_t, struct sockaddr_in *)); 1841558Srgrimesint xdr_dir __P((XDR *, char *)); 1851558Srgrimesint xdr_explist __P((XDR *, caddr_t)); 1861558Srgrimesint xdr_fhs __P((XDR *, nfsv2fh_t *)); 1871558Srgrimesint xdr_mlist __P((XDR *, caddr_t)); 1881558Srgrimes 1891558Srgrimes/* C library */ 1901558Srgrimesint getnetgrent(); 1911558Srgrimesvoid endnetgrent(); 1921558Srgrimesvoid setnetgrent(); 1931558Srgrimes 1941558Srgrimes#ifdef ISO 1951558Srgrimesstruct iso_addr *iso_addr(); 1961558Srgrimes#endif 1971558Srgrimes 1981558Srgrimesstruct exportlist *exphead; 1991558Srgrimesstruct mountlist *mlhead; 2001558Srgrimesstruct grouplist *grphead; 2011558Srgrimeschar exname[MAXPATHLEN]; 2021558Srgrimesstruct ucred def_anon = { 2031558Srgrimes 1, 2041558Srgrimes (uid_t) -2, 2051558Srgrimes 1, 2061558Srgrimes { (gid_t) -2 } 2071558Srgrimes}; 2081558Srgrimesint root_only = 1; 2091558Srgrimesint opt_flags; 2101558Srgrimes/* Bits for above */ 2111558Srgrimes#define OP_MAPROOT 0x01 2121558Srgrimes#define OP_MAPALL 0x02 2131558Srgrimes#define OP_KERB 0x04 2141558Srgrimes#define OP_MASK 0x08 2151558Srgrimes#define OP_NET 0x10 2161558Srgrimes#define OP_ISO 0x20 2171558Srgrimes#define OP_ALLDIRS 0x40 2181558Srgrimes 2191558Srgrimes#ifdef DEBUG 2201558Srgrimesint debug = 1; 2211558Srgrimesvoid SYSLOG __P((int, const char *, ...)); 2221558Srgrimes#define syslog SYSLOG 2231558Srgrimes#else 2241558Srgrimesint debug = 0; 2251558Srgrimes#endif 2261558Srgrimes 2271558Srgrimes/* 2281558Srgrimes * Mountd server for NFS mount protocol as described in: 2291558Srgrimes * NFS: Network File System Protocol Specification, RFC1094, Appendix A 2301558Srgrimes * The optional arguments are the exports file name 2311558Srgrimes * default: _PATH_EXPORTS 2321558Srgrimes * and "-n" to allow nonroot mount. 2331558Srgrimes */ 2341558Srgrimesint 2351558Srgrimesmain(argc, argv) 2361558Srgrimes int argc; 2371558Srgrimes char **argv; 2381558Srgrimes{ 2391558Srgrimes SVCXPRT *transp; 2401558Srgrimes int c; 2412999Swollman struct vfsconf *vfc; 2421558Srgrimes 2432999Swollman vfc = getvfsbyname("nfs"); 2442999Swollman if(!vfc && vfsisloadable("nfs")) { 2452999Swollman if(vfsload("nfs")) 2462999Swollman err(1, "vfsload(nfs)"); 2472999Swollman endvfsent(); /* flush cache */ 2482999Swollman vfc = getvfsbyname("nfs"); 2492999Swollman } 2502999Swollman if(!vfc) { 2512999Swollman errx(1, "NFS support is not available in the running kernel"); 2522999Swollman } 2532999Swollman 2541558Srgrimes while ((c = getopt(argc, argv, "n")) != EOF) 2551558Srgrimes switch (c) { 2561558Srgrimes case 'n': 2571558Srgrimes root_only = 0; 2581558Srgrimes break; 2591558Srgrimes default: 2601558Srgrimes fprintf(stderr, "Usage: mountd [-n] [export_file]\n"); 2611558Srgrimes exit(1); 2621558Srgrimes }; 2631558Srgrimes argc -= optind; 2641558Srgrimes argv += optind; 2651558Srgrimes grphead = (struct grouplist *)NULL; 2661558Srgrimes exphead = (struct exportlist *)NULL; 2671558Srgrimes mlhead = (struct mountlist *)NULL; 2681558Srgrimes if (argc == 1) { 2691558Srgrimes strncpy(exname, *argv, MAXPATHLEN-1); 2701558Srgrimes exname[MAXPATHLEN-1] = '\0'; 2711558Srgrimes } else 2721558Srgrimes strcpy(exname, _PATH_EXPORTS); 2731558Srgrimes openlog("mountd", LOG_PID, LOG_DAEMON); 2741558Srgrimes if (debug) 2751558Srgrimes fprintf(stderr,"Getting export list.\n"); 2761558Srgrimes get_exportlist(); 2771558Srgrimes if (debug) 2781558Srgrimes fprintf(stderr,"Getting mount list.\n"); 2791558Srgrimes get_mountlist(); 2801558Srgrimes if (debug) 2811558Srgrimes fprintf(stderr,"Here we go.\n"); 2821558Srgrimes if (debug == 0) { 2831558Srgrimes daemon(0, 0); 2841558Srgrimes signal(SIGINT, SIG_IGN); 2851558Srgrimes signal(SIGQUIT, SIG_IGN); 2861558Srgrimes } 2871558Srgrimes signal(SIGHUP, (void (*) __P((int))) get_exportlist); 2881558Srgrimes signal(SIGTERM, (void (*) __P((int))) send_umntall); 2891558Srgrimes { FILE *pidfile = fopen(_PATH_MOUNTDPID, "w"); 2901558Srgrimes if (pidfile != NULL) { 2911558Srgrimes fprintf(pidfile, "%d\n", getpid()); 2921558Srgrimes fclose(pidfile); 2931558Srgrimes } 2941558Srgrimes } 2951558Srgrimes if ((transp = svcudp_create(RPC_ANYSOCK)) == NULL) { 2961558Srgrimes syslog(LOG_ERR, "Can't create socket"); 2971558Srgrimes exit(1); 2981558Srgrimes } 2991558Srgrimes pmap_unset(RPCPROG_MNT, RPCMNT_VER1); 3001558Srgrimes if (!svc_register(transp, RPCPROG_MNT, RPCMNT_VER1, mntsrv, 3011558Srgrimes IPPROTO_UDP)) { 3021558Srgrimes syslog(LOG_ERR, "Can't register mount"); 3031558Srgrimes exit(1); 3041558Srgrimes } 3051558Srgrimes svc_run(); 3061558Srgrimes syslog(LOG_ERR, "Mountd died"); 3071558Srgrimes exit(1); 3081558Srgrimes} 3091558Srgrimes 3101558Srgrimes/* 3111558Srgrimes * The mount rpc service 3121558Srgrimes */ 3131558Srgrimesvoid 3141558Srgrimesmntsrv(rqstp, transp) 3151558Srgrimes struct svc_req *rqstp; 3161558Srgrimes SVCXPRT *transp; 3171558Srgrimes{ 3181558Srgrimes struct exportlist *ep; 3191558Srgrimes struct dirlist *dp; 3201558Srgrimes nfsv2fh_t nfh; 3211558Srgrimes struct authunix_parms *ucr; 3221558Srgrimes struct stat stb; 3231558Srgrimes struct statfs fsb; 3241558Srgrimes struct hostent *hp; 3251558Srgrimes u_long saddr; 3261558Srgrimes char rpcpath[RPCMNT_PATHLEN+1], dirpath[MAXPATHLEN]; 3271558Srgrimes int bad = ENOENT, omask, defset; 3281558Srgrimes uid_t uid = -2; 3291558Srgrimes 3301558Srgrimes /* Get authorization */ 3311558Srgrimes switch (rqstp->rq_cred.oa_flavor) { 3321558Srgrimes case AUTH_UNIX: 3331558Srgrimes ucr = (struct authunix_parms *)rqstp->rq_clntcred; 3341558Srgrimes uid = ucr->aup_uid; 3351558Srgrimes break; 3361558Srgrimes case AUTH_NULL: 3371558Srgrimes default: 3381558Srgrimes break; 3391558Srgrimes } 3401558Srgrimes 3411558Srgrimes saddr = transp->xp_raddr.sin_addr.s_addr; 3421558Srgrimes hp = (struct hostent *)NULL; 3431558Srgrimes switch (rqstp->rq_proc) { 3441558Srgrimes case NULLPROC: 3451558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 3461558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3471558Srgrimes return; 3481558Srgrimes case RPCMNT_MOUNT: 3491558Srgrimes if ((uid != 0 && root_only) || uid == -2) { 3501558Srgrimes svcerr_weakauth(transp); 3511558Srgrimes return; 3521558Srgrimes } 3531558Srgrimes if (!svc_getargs(transp, xdr_dir, rpcpath)) { 3541558Srgrimes svcerr_decode(transp); 3551558Srgrimes return; 3561558Srgrimes } 3571558Srgrimes 3581558Srgrimes /* 3591558Srgrimes * Get the real pathname and make sure it is a directory 3601558Srgrimes * that exists. 3611558Srgrimes */ 3621558Srgrimes if (realpath(rpcpath, dirpath) == 0 || 3631558Srgrimes stat(dirpath, &stb) < 0 || 3641558Srgrimes (stb.st_mode & S_IFMT) != S_IFDIR || 3651558Srgrimes statfs(dirpath, &fsb) < 0) { 3661558Srgrimes chdir("/"); /* Just in case realpath doesn't */ 3671558Srgrimes if (debug) 3681558Srgrimes fprintf(stderr, "stat failed on %s\n", dirpath); 3691558Srgrimes if (!svc_sendreply(transp, xdr_long, (caddr_t)&bad)) 3701558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3711558Srgrimes return; 3721558Srgrimes } 3731558Srgrimes 3741558Srgrimes /* Check in the exports list */ 3751558Srgrimes omask = sigblock(sigmask(SIGHUP)); 3761558Srgrimes ep = ex_search(&fsb.f_fsid); 3771558Srgrimes defset = 0; 3781558Srgrimes if (ep && (chk_host(ep->ex_defdir, saddr, &defset) || 3791558Srgrimes ((dp = dirp_search(ep->ex_dirl, dirpath)) && 3801558Srgrimes chk_host(dp, saddr, &defset)) || 3811558Srgrimes (defset && scan_tree(ep->ex_defdir, saddr) == 0 && 3821558Srgrimes scan_tree(ep->ex_dirl, saddr) == 0))) { 3831558Srgrimes /* Get the file handle */ 3841558Srgrimes bzero((caddr_t)&nfh, sizeof(nfh)); 3851558Srgrimes if (getfh(dirpath, (fhandle_t *)&nfh) < 0) { 3861558Srgrimes bad = errno; 3871558Srgrimes syslog(LOG_ERR, "Can't get fh for %s", dirpath); 3881558Srgrimes if (!svc_sendreply(transp, xdr_long, 3891558Srgrimes (caddr_t)&bad)) 3901558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3911558Srgrimes sigsetmask(omask); 3921558Srgrimes return; 3931558Srgrimes } 3941558Srgrimes if (!svc_sendreply(transp, xdr_fhs, (caddr_t)&nfh)) 3951558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3961558Srgrimes if (hp == NULL) 3971558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, 3981558Srgrimes sizeof(saddr), AF_INET); 3991558Srgrimes if (hp) 4001558Srgrimes add_mlist(hp->h_name, dirpath); 4011558Srgrimes else 4021558Srgrimes add_mlist(inet_ntoa(transp->xp_raddr.sin_addr), 4031558Srgrimes dirpath); 4041558Srgrimes if (debug) 4051558Srgrimes fprintf(stderr,"Mount successfull.\n"); 4061558Srgrimes } else { 4071558Srgrimes bad = EACCES; 4081558Srgrimes if (!svc_sendreply(transp, xdr_long, (caddr_t)&bad)) 4091558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4101558Srgrimes } 4111558Srgrimes sigsetmask(omask); 4121558Srgrimes return; 4131558Srgrimes case RPCMNT_DUMP: 4141558Srgrimes if (!svc_sendreply(transp, xdr_mlist, (caddr_t)NULL)) 4151558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4161558Srgrimes return; 4171558Srgrimes case RPCMNT_UMOUNT: 4181558Srgrimes if ((uid != 0 && root_only) || uid == -2) { 4191558Srgrimes svcerr_weakauth(transp); 4201558Srgrimes return; 4211558Srgrimes } 4221558Srgrimes if (!svc_getargs(transp, xdr_dir, dirpath)) { 4231558Srgrimes svcerr_decode(transp); 4241558Srgrimes return; 4251558Srgrimes } 4261558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 4271558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4281558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET); 4291558Srgrimes if (hp) 4301558Srgrimes del_mlist(hp->h_name, dirpath); 4311558Srgrimes del_mlist(inet_ntoa(transp->xp_raddr.sin_addr), dirpath); 4321558Srgrimes return; 4331558Srgrimes case RPCMNT_UMNTALL: 4341558Srgrimes if ((uid != 0 && root_only) || uid == -2) { 4351558Srgrimes svcerr_weakauth(transp); 4361558Srgrimes return; 4371558Srgrimes } 4381558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 4391558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4401558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET); 4411558Srgrimes if (hp) 4421558Srgrimes del_mlist(hp->h_name, (char *)NULL); 4431558Srgrimes del_mlist(inet_ntoa(transp->xp_raddr.sin_addr), (char *)NULL); 4441558Srgrimes return; 4451558Srgrimes case RPCMNT_EXPORT: 4461558Srgrimes if (!svc_sendreply(transp, xdr_explist, (caddr_t)NULL)) 4471558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4481558Srgrimes return; 4491558Srgrimes default: 4501558Srgrimes svcerr_noproc(transp); 4511558Srgrimes return; 4521558Srgrimes } 4531558Srgrimes} 4541558Srgrimes 4551558Srgrimes/* 4561558Srgrimes * Xdr conversion for a dirpath string 4571558Srgrimes */ 4581558Srgrimesint 4591558Srgrimesxdr_dir(xdrsp, dirp) 4601558Srgrimes XDR *xdrsp; 4611558Srgrimes char *dirp; 4621558Srgrimes{ 4631558Srgrimes return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN)); 4641558Srgrimes} 4651558Srgrimes 4661558Srgrimes/* 4671558Srgrimes * Xdr routine to generate fhstatus 4681558Srgrimes */ 4691558Srgrimesint 4701558Srgrimesxdr_fhs(xdrsp, nfh) 4711558Srgrimes XDR *xdrsp; 4721558Srgrimes nfsv2fh_t *nfh; 4731558Srgrimes{ 4747401Swpaul u_long ok = 0; 4751558Srgrimes 4761558Srgrimes if (!xdr_long(xdrsp, &ok)) 4771558Srgrimes return (0); 4781558Srgrimes return (xdr_opaque(xdrsp, (caddr_t)nfh, NFSX_FH)); 4791558Srgrimes} 4801558Srgrimes 4811558Srgrimesint 4821558Srgrimesxdr_mlist(xdrsp, cp) 4831558Srgrimes XDR *xdrsp; 4841558Srgrimes caddr_t cp; 4851558Srgrimes{ 4861558Srgrimes struct mountlist *mlp; 4871558Srgrimes int true = 1; 4881558Srgrimes int false = 0; 4891558Srgrimes char *strp; 4901558Srgrimes 4911558Srgrimes mlp = mlhead; 4921558Srgrimes while (mlp) { 4931558Srgrimes if (!xdr_bool(xdrsp, &true)) 4941558Srgrimes return (0); 4951558Srgrimes strp = &mlp->ml_host[0]; 4961558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN)) 4971558Srgrimes return (0); 4981558Srgrimes strp = &mlp->ml_dirp[0]; 4991558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 5001558Srgrimes return (0); 5011558Srgrimes mlp = mlp->ml_next; 5021558Srgrimes } 5031558Srgrimes if (!xdr_bool(xdrsp, &false)) 5041558Srgrimes return (0); 5051558Srgrimes return (1); 5061558Srgrimes} 5071558Srgrimes 5081558Srgrimes/* 5091558Srgrimes * Xdr conversion for export list 5101558Srgrimes */ 5111558Srgrimesint 5121558Srgrimesxdr_explist(xdrsp, cp) 5131558Srgrimes XDR *xdrsp; 5141558Srgrimes caddr_t cp; 5151558Srgrimes{ 5161558Srgrimes struct exportlist *ep; 5171558Srgrimes int false = 0; 5181558Srgrimes int omask, putdef; 5191558Srgrimes 5201558Srgrimes omask = sigblock(sigmask(SIGHUP)); 5211558Srgrimes ep = exphead; 5221558Srgrimes while (ep) { 5231558Srgrimes putdef = 0; 5241558Srgrimes if (put_exlist(ep->ex_dirl, xdrsp, ep->ex_defdir, &putdef)) 5251558Srgrimes goto errout; 5261558Srgrimes if (ep->ex_defdir && putdef == 0 && 5271558Srgrimes put_exlist(ep->ex_defdir, xdrsp, (struct dirlist *)NULL, 5281558Srgrimes &putdef)) 5291558Srgrimes goto errout; 5301558Srgrimes ep = ep->ex_next; 5311558Srgrimes } 5321558Srgrimes sigsetmask(omask); 5331558Srgrimes if (!xdr_bool(xdrsp, &false)) 5341558Srgrimes return (0); 5351558Srgrimes return (1); 5361558Srgrimeserrout: 5371558Srgrimes sigsetmask(omask); 5381558Srgrimes return (0); 5391558Srgrimes} 5401558Srgrimes 5411558Srgrimes/* 5421558Srgrimes * Called from xdr_explist() to traverse the tree and export the 5431558Srgrimes * directory paths. 5441558Srgrimes */ 5451558Srgrimesint 5461558Srgrimesput_exlist(dp, xdrsp, adp, putdefp) 5471558Srgrimes struct dirlist *dp; 5481558Srgrimes XDR *xdrsp; 5491558Srgrimes struct dirlist *adp; 5501558Srgrimes int *putdefp; 5511558Srgrimes{ 5521558Srgrimes struct grouplist *grp; 5531558Srgrimes struct hostlist *hp; 5541558Srgrimes int true = 1; 5551558Srgrimes int false = 0; 5561558Srgrimes int gotalldir = 0; 5571558Srgrimes char *strp; 5581558Srgrimes 5591558Srgrimes if (dp) { 5601558Srgrimes if (put_exlist(dp->dp_left, xdrsp, adp, putdefp)) 5611558Srgrimes return (1); 5621558Srgrimes if (!xdr_bool(xdrsp, &true)) 5631558Srgrimes return (1); 5641558Srgrimes strp = dp->dp_dirp; 5651558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 5661558Srgrimes return (1); 5671558Srgrimes if (adp && !strcmp(dp->dp_dirp, adp->dp_dirp)) { 5681558Srgrimes gotalldir = 1; 5691558Srgrimes *putdefp = 1; 5701558Srgrimes } 5711558Srgrimes if ((dp->dp_flag & DP_DEFSET) == 0 && 5721558Srgrimes (gotalldir == 0 || (adp->dp_flag & DP_DEFSET) == 0)) { 5731558Srgrimes hp = dp->dp_hosts; 5741558Srgrimes while (hp) { 5751558Srgrimes grp = hp->ht_grp; 5761558Srgrimes if (grp->gr_type == GT_HOST) { 5771558Srgrimes if (!xdr_bool(xdrsp, &true)) 5781558Srgrimes return (1); 5791558Srgrimes strp = grp->gr_ptr.gt_hostent->h_name; 5801558Srgrimes if (!xdr_string(xdrsp, &strp, 5811558Srgrimes RPCMNT_NAMELEN)) 5821558Srgrimes return (1); 5831558Srgrimes } else if (grp->gr_type == GT_NET) { 5841558Srgrimes if (!xdr_bool(xdrsp, &true)) 5851558Srgrimes return (1); 5861558Srgrimes strp = grp->gr_ptr.gt_net.nt_name; 5871558Srgrimes if (!xdr_string(xdrsp, &strp, 5881558Srgrimes RPCMNT_NAMELEN)) 5891558Srgrimes return (1); 5901558Srgrimes } 5911558Srgrimes hp = hp->ht_next; 5921558Srgrimes if (gotalldir && hp == (struct hostlist *)NULL) { 5931558Srgrimes hp = adp->dp_hosts; 5941558Srgrimes gotalldir = 0; 5951558Srgrimes } 5961558Srgrimes } 5971558Srgrimes } 5981558Srgrimes if (!xdr_bool(xdrsp, &false)) 5991558Srgrimes return (1); 6001558Srgrimes if (put_exlist(dp->dp_right, xdrsp, adp, putdefp)) 6011558Srgrimes return (1); 6021558Srgrimes } 6031558Srgrimes return (0); 6041558Srgrimes} 6051558Srgrimes 6061558Srgrimes#define LINESIZ 10240 6071558Srgrimeschar line[LINESIZ]; 6081558SrgrimesFILE *exp_file; 6091558Srgrimes 6101558Srgrimes/* 6111558Srgrimes * Get the export list 6121558Srgrimes */ 6131558Srgrimesvoid 6141558Srgrimesget_exportlist() 6151558Srgrimes{ 6161558Srgrimes struct exportlist *ep, *ep2; 6171558Srgrimes struct grouplist *grp, *tgrp; 6181558Srgrimes struct exportlist **epp; 6191558Srgrimes struct dirlist *dirhead; 6201558Srgrimes struct statfs fsb, *fsp; 6211558Srgrimes struct hostent *hpe; 6221558Srgrimes struct ucred anon; 6231558Srgrimes char *cp, *endcp, *dirp, *hst, *usr, *dom, savedc; 6241558Srgrimes int len, has_host, exflags, got_nondir, dirplen, num, i, netgrp; 6251558Srgrimes 6261558Srgrimes /* 6271558Srgrimes * First, get rid of the old list 6281558Srgrimes */ 6291558Srgrimes ep = exphead; 6301558Srgrimes while (ep) { 6311558Srgrimes ep2 = ep; 6321558Srgrimes ep = ep->ex_next; 6331558Srgrimes free_exp(ep2); 6341558Srgrimes } 6351558Srgrimes exphead = (struct exportlist *)NULL; 6361558Srgrimes 6371558Srgrimes grp = grphead; 6381558Srgrimes while (grp) { 6391558Srgrimes tgrp = grp; 6401558Srgrimes grp = grp->gr_next; 6411558Srgrimes free_grp(tgrp); 6421558Srgrimes } 6431558Srgrimes grphead = (struct grouplist *)NULL; 6441558Srgrimes 6451558Srgrimes /* 6461558Srgrimes * And delete exports that are in the kernel for all local 6471558Srgrimes * file systems. 6481558Srgrimes * XXX: Should know how to handle all local exportable file systems 6491558Srgrimes * instead of just MOUNT_UFS. 6501558Srgrimes */ 6511558Srgrimes num = getmntinfo(&fsp, MNT_NOWAIT); 6521558Srgrimes for (i = 0; i < num; i++) { 6531558Srgrimes union { 6541558Srgrimes struct ufs_args ua; 6551558Srgrimes struct iso_args ia; 6561558Srgrimes struct mfs_args ma; 6571558Srgrimes } targs; 6581558Srgrimes 6591558Srgrimes switch (fsp->f_type) { 6601558Srgrimes case MOUNT_MFS: 6611558Srgrimes case MOUNT_UFS: 6621558Srgrimes case MOUNT_CD9660: 6632898Sdfr case MOUNT_MSDOS: 6641558Srgrimes targs.ua.fspec = NULL; 6651558Srgrimes targs.ua.export.ex_flags = MNT_DELEXPORT; 6661558Srgrimes if (mount(fsp->f_type, fsp->f_mntonname, 6671558Srgrimes fsp->f_flags | MNT_UPDATE, 6681558Srgrimes (caddr_t)&targs) < 0) 6691558Srgrimes syslog(LOG_ERR, "Can't delete exports for %s", 6701558Srgrimes fsp->f_mntonname); 6711558Srgrimes } 6721558Srgrimes fsp++; 6731558Srgrimes } 6741558Srgrimes 6751558Srgrimes /* 6761558Srgrimes * Read in the exports file and build the list, calling 6771558Srgrimes * mount() as we go along to push the export rules into the kernel. 6781558Srgrimes */ 6791558Srgrimes if ((exp_file = fopen(exname, "r")) == NULL) { 6801558Srgrimes syslog(LOG_ERR, "Can't open %s", exname); 6811558Srgrimes exit(2); 6821558Srgrimes } 6831558Srgrimes dirhead = (struct dirlist *)NULL; 6841558Srgrimes while (get_line()) { 6851558Srgrimes if (debug) 6861558Srgrimes fprintf(stderr,"Got line %s\n",line); 6871558Srgrimes cp = line; 6881558Srgrimes nextfield(&cp, &endcp); 6891558Srgrimes if (*cp == '#') 6901558Srgrimes goto nextline; 6911558Srgrimes 6921558Srgrimes /* 6931558Srgrimes * Set defaults. 6941558Srgrimes */ 6951558Srgrimes has_host = FALSE; 6961558Srgrimes anon = def_anon; 6971558Srgrimes exflags = MNT_EXPORTED; 6981558Srgrimes got_nondir = 0; 6991558Srgrimes opt_flags = 0; 7001558Srgrimes ep = (struct exportlist *)NULL; 7011558Srgrimes 7021558Srgrimes /* 7031558Srgrimes * Create new exports list entry 7041558Srgrimes */ 7051558Srgrimes len = endcp-cp; 7061558Srgrimes tgrp = grp = get_grp(); 7071558Srgrimes while (len > 0) { 7081558Srgrimes if (len > RPCMNT_NAMELEN) { 7091558Srgrimes getexp_err(ep, tgrp); 7101558Srgrimes goto nextline; 7111558Srgrimes } 7121558Srgrimes if (*cp == '-') { 7131558Srgrimes if (ep == (struct exportlist *)NULL) { 7141558Srgrimes getexp_err(ep, tgrp); 7151558Srgrimes goto nextline; 7161558Srgrimes } 7171558Srgrimes if (debug) 7181558Srgrimes fprintf(stderr, "doing opt %s\n", cp); 7191558Srgrimes got_nondir = 1; 7201558Srgrimes if (do_opt(&cp, &endcp, ep, grp, &has_host, 7211558Srgrimes &exflags, &anon)) { 7221558Srgrimes getexp_err(ep, tgrp); 7231558Srgrimes goto nextline; 7241558Srgrimes } 7251558Srgrimes } else if (*cp == '/') { 7261558Srgrimes savedc = *endcp; 7271558Srgrimes *endcp = '\0'; 7281558Srgrimes if (check_dirpath(cp) && 7291558Srgrimes statfs(cp, &fsb) >= 0) { 7301558Srgrimes if (got_nondir) { 7311558Srgrimes syslog(LOG_ERR, "Dirs must be first"); 7321558Srgrimes getexp_err(ep, tgrp); 7331558Srgrimes goto nextline; 7341558Srgrimes } 7351558Srgrimes if (ep) { 7361558Srgrimes if (ep->ex_fs.val[0] != fsb.f_fsid.val[0] || 7371558Srgrimes ep->ex_fs.val[1] != fsb.f_fsid.val[1]) { 7381558Srgrimes getexp_err(ep, tgrp); 7391558Srgrimes goto nextline; 7401558Srgrimes } 7411558Srgrimes } else { 7421558Srgrimes /* 7431558Srgrimes * See if this directory is already 7441558Srgrimes * in the list. 7451558Srgrimes */ 7461558Srgrimes ep = ex_search(&fsb.f_fsid); 7471558Srgrimes if (ep == (struct exportlist *)NULL) { 7481558Srgrimes ep = get_exp(); 7491558Srgrimes ep->ex_fs = fsb.f_fsid; 7501558Srgrimes ep->ex_fsdir = (char *) 7511558Srgrimes malloc(strlen(fsb.f_mntonname) + 1); 7521558Srgrimes if (ep->ex_fsdir) 7531558Srgrimes strcpy(ep->ex_fsdir, 7541558Srgrimes fsb.f_mntonname); 7551558Srgrimes else 7561558Srgrimes out_of_mem(); 7571558Srgrimes if (debug) 7581558Srgrimes fprintf(stderr, 7591558Srgrimes "Making new ep fs=0x%x,0x%x\n", 7601558Srgrimes fsb.f_fsid.val[0], 7611558Srgrimes fsb.f_fsid.val[1]); 7621558Srgrimes } else if (debug) 7631558Srgrimes fprintf(stderr, 7641558Srgrimes "Found ep fs=0x%x,0x%x\n", 7651558Srgrimes fsb.f_fsid.val[0], 7661558Srgrimes fsb.f_fsid.val[1]); 7671558Srgrimes } 7681558Srgrimes 7691558Srgrimes /* 7701558Srgrimes * Add dirpath to export mount point. 7711558Srgrimes */ 7721558Srgrimes dirp = add_expdir(&dirhead, cp, len); 7731558Srgrimes dirplen = len; 7741558Srgrimes } else { 7751558Srgrimes getexp_err(ep, tgrp); 7761558Srgrimes goto nextline; 7771558Srgrimes } 7781558Srgrimes *endcp = savedc; 7791558Srgrimes } else { 7801558Srgrimes savedc = *endcp; 7811558Srgrimes *endcp = '\0'; 7821558Srgrimes got_nondir = 1; 7831558Srgrimes if (ep == (struct exportlist *)NULL) { 7841558Srgrimes getexp_err(ep, tgrp); 7851558Srgrimes goto nextline; 7861558Srgrimes } 7871558Srgrimes 7881558Srgrimes /* 7891558Srgrimes * Get the host or netgroup. 7901558Srgrimes */ 7911558Srgrimes setnetgrent(cp); 7921558Srgrimes netgrp = getnetgrent(&hst, &usr, &dom); 7931558Srgrimes do { 7941558Srgrimes if (has_host) { 7951558Srgrimes grp->gr_next = get_grp(); 7961558Srgrimes grp = grp->gr_next; 7971558Srgrimes } 7981558Srgrimes if (netgrp) { 7997401Swpaul if (get_host(hst, grp, tgrp)) { 8001558Srgrimes syslog(LOG_ERR, "Bad netgroup %s", cp); 8011558Srgrimes getexp_err(ep, tgrp); 8021558Srgrimes goto nextline; 8031558Srgrimes } 8047401Swpaul } else if (get_host(cp, grp, tgrp)) { 8051558Srgrimes getexp_err(ep, tgrp); 8061558Srgrimes goto nextline; 8071558Srgrimes } 8081558Srgrimes has_host = TRUE; 8091558Srgrimes } while (netgrp && getnetgrent(&hst, &usr, &dom)); 8101558Srgrimes endnetgrent(); 8111558Srgrimes *endcp = savedc; 8121558Srgrimes } 8131558Srgrimes cp = endcp; 8141558Srgrimes nextfield(&cp, &endcp); 8151558Srgrimes len = endcp - cp; 8161558Srgrimes } 8171558Srgrimes if (check_options(dirhead)) { 8181558Srgrimes getexp_err(ep, tgrp); 8191558Srgrimes goto nextline; 8201558Srgrimes } 8211558Srgrimes if (!has_host) { 8221558Srgrimes grp->gr_type = GT_HOST; 8231558Srgrimes if (debug) 8241558Srgrimes fprintf(stderr,"Adding a default entry\n"); 8251558Srgrimes /* add a default group and make the grp list NULL */ 8261558Srgrimes hpe = (struct hostent *)malloc(sizeof(struct hostent)); 8271558Srgrimes if (hpe == (struct hostent *)NULL) 8281558Srgrimes out_of_mem(); 8291558Srgrimes hpe->h_name = "Default"; 8301558Srgrimes hpe->h_addrtype = AF_INET; 8311558Srgrimes hpe->h_length = sizeof (u_long); 8321558Srgrimes hpe->h_addr_list = (char **)NULL; 8331558Srgrimes grp->gr_ptr.gt_hostent = hpe; 8341558Srgrimes 8351558Srgrimes /* 8361558Srgrimes * Don't allow a network export coincide with a list of 8371558Srgrimes * host(s) on the same line. 8381558Srgrimes */ 8391558Srgrimes } else if ((opt_flags & OP_NET) && tgrp->gr_next) { 8401558Srgrimes getexp_err(ep, tgrp); 8411558Srgrimes goto nextline; 8421558Srgrimes } 8431558Srgrimes 8441558Srgrimes /* 8451558Srgrimes * Loop through hosts, pushing the exports into the kernel. 8461558Srgrimes * After loop, tgrp points to the start of the list and 8471558Srgrimes * grp points to the last entry in the list. 8481558Srgrimes */ 8491558Srgrimes grp = tgrp; 8501558Srgrimes do { 8511558Srgrimes if (do_mount(ep, grp, exflags, &anon, dirp, 8521558Srgrimes dirplen, &fsb)) { 8531558Srgrimes getexp_err(ep, tgrp); 8541558Srgrimes goto nextline; 8551558Srgrimes } 8561558Srgrimes } while (grp->gr_next && (grp = grp->gr_next)); 8571558Srgrimes 8581558Srgrimes /* 8591558Srgrimes * Success. Update the data structures. 8601558Srgrimes */ 8611558Srgrimes if (has_host) { 8621558Srgrimes hang_dirp(dirhead, tgrp, ep, (opt_flags & OP_ALLDIRS)); 8631558Srgrimes grp->gr_next = grphead; 8641558Srgrimes grphead = tgrp; 8651558Srgrimes } else { 8661558Srgrimes hang_dirp(dirhead, (struct grouplist *)NULL, ep, 8671558Srgrimes (opt_flags & OP_ALLDIRS)); 8681558Srgrimes free_grp(grp); 8691558Srgrimes } 8701558Srgrimes dirhead = (struct dirlist *)NULL; 8711558Srgrimes if ((ep->ex_flag & EX_LINKED) == 0) { 8721558Srgrimes ep2 = exphead; 8731558Srgrimes epp = &exphead; 8741558Srgrimes 8751558Srgrimes /* 8761558Srgrimes * Insert in the list in alphabetical order. 8771558Srgrimes */ 8781558Srgrimes while (ep2 && strcmp(ep2->ex_fsdir, ep->ex_fsdir) < 0) { 8791558Srgrimes epp = &ep2->ex_next; 8801558Srgrimes ep2 = ep2->ex_next; 8811558Srgrimes } 8821558Srgrimes if (ep2) 8831558Srgrimes ep->ex_next = ep2; 8841558Srgrimes *epp = ep; 8851558Srgrimes ep->ex_flag |= EX_LINKED; 8861558Srgrimes } 8871558Srgrimesnextline: 8881558Srgrimes if (dirhead) { 8891558Srgrimes free_dir(dirhead); 8901558Srgrimes dirhead = (struct dirlist *)NULL; 8911558Srgrimes } 8921558Srgrimes } 8931558Srgrimes fclose(exp_file); 8941558Srgrimes} 8951558Srgrimes 8961558Srgrimes/* 8971558Srgrimes * Allocate an export list element 8981558Srgrimes */ 8991558Srgrimesstruct exportlist * 9001558Srgrimesget_exp() 9011558Srgrimes{ 9021558Srgrimes struct exportlist *ep; 9031558Srgrimes 9041558Srgrimes ep = (struct exportlist *)malloc(sizeof (struct exportlist)); 9051558Srgrimes if (ep == (struct exportlist *)NULL) 9061558Srgrimes out_of_mem(); 9071558Srgrimes bzero((caddr_t)ep, sizeof (struct exportlist)); 9081558Srgrimes return (ep); 9091558Srgrimes} 9101558Srgrimes 9111558Srgrimes/* 9121558Srgrimes * Allocate a group list element 9131558Srgrimes */ 9141558Srgrimesstruct grouplist * 9151558Srgrimesget_grp() 9161558Srgrimes{ 9171558Srgrimes struct grouplist *gp; 9181558Srgrimes 9191558Srgrimes gp = (struct grouplist *)malloc(sizeof (struct grouplist)); 9201558Srgrimes if (gp == (struct grouplist *)NULL) 9211558Srgrimes out_of_mem(); 9221558Srgrimes bzero((caddr_t)gp, sizeof (struct grouplist)); 9231558Srgrimes return (gp); 9241558Srgrimes} 9251558Srgrimes 9261558Srgrimes/* 9271558Srgrimes * Clean up upon an error in get_exportlist(). 9281558Srgrimes */ 9291558Srgrimesvoid 9301558Srgrimesgetexp_err(ep, grp) 9311558Srgrimes struct exportlist *ep; 9321558Srgrimes struct grouplist *grp; 9331558Srgrimes{ 9341558Srgrimes struct grouplist *tgrp; 9351558Srgrimes 9361558Srgrimes syslog(LOG_ERR, "Bad exports list line %s", line); 9371558Srgrimes if (ep && (ep->ex_flag & EX_LINKED) == 0) 9381558Srgrimes free_exp(ep); 9391558Srgrimes while (grp) { 9401558Srgrimes tgrp = grp; 9411558Srgrimes grp = grp->gr_next; 9421558Srgrimes free_grp(tgrp); 9431558Srgrimes } 9441558Srgrimes} 9451558Srgrimes 9461558Srgrimes/* 9471558Srgrimes * Search the export list for a matching fs. 9481558Srgrimes */ 9491558Srgrimesstruct exportlist * 9501558Srgrimesex_search(fsid) 9511558Srgrimes fsid_t *fsid; 9521558Srgrimes{ 9531558Srgrimes struct exportlist *ep; 9541558Srgrimes 9551558Srgrimes ep = exphead; 9561558Srgrimes while (ep) { 9571558Srgrimes if (ep->ex_fs.val[0] == fsid->val[0] && 9581558Srgrimes ep->ex_fs.val[1] == fsid->val[1]) 9591558Srgrimes return (ep); 9601558Srgrimes ep = ep->ex_next; 9611558Srgrimes } 9621558Srgrimes return (ep); 9631558Srgrimes} 9641558Srgrimes 9651558Srgrimes/* 9661558Srgrimes * Add a directory path to the list. 9671558Srgrimes */ 9681558Srgrimeschar * 9691558Srgrimesadd_expdir(dpp, cp, len) 9701558Srgrimes struct dirlist **dpp; 9711558Srgrimes char *cp; 9721558Srgrimes int len; 9731558Srgrimes{ 9741558Srgrimes struct dirlist *dp; 9751558Srgrimes 9761558Srgrimes dp = (struct dirlist *)malloc(sizeof (struct dirlist) + len); 9771558Srgrimes dp->dp_left = *dpp; 9781558Srgrimes dp->dp_right = (struct dirlist *)NULL; 9791558Srgrimes dp->dp_flag = 0; 9801558Srgrimes dp->dp_hosts = (struct hostlist *)NULL; 9811558Srgrimes strcpy(dp->dp_dirp, cp); 9821558Srgrimes *dpp = dp; 9831558Srgrimes return (dp->dp_dirp); 9841558Srgrimes} 9851558Srgrimes 9861558Srgrimes/* 9871558Srgrimes * Hang the dir list element off the dirpath binary tree as required 9881558Srgrimes * and update the entry for host. 9891558Srgrimes */ 9901558Srgrimesvoid 9911558Srgrimeshang_dirp(dp, grp, ep, alldirs) 9921558Srgrimes struct dirlist *dp; 9931558Srgrimes struct grouplist *grp; 9941558Srgrimes struct exportlist *ep; 9951558Srgrimes int alldirs; 9961558Srgrimes{ 9971558Srgrimes struct hostlist *hp; 9981558Srgrimes struct dirlist *dp2; 9991558Srgrimes 10001558Srgrimes if (alldirs) { 10011558Srgrimes if (ep->ex_defdir) 10021558Srgrimes free((caddr_t)dp); 10031558Srgrimes else 10041558Srgrimes ep->ex_defdir = dp; 10051558Srgrimes if (grp == (struct grouplist *)NULL) 10061558Srgrimes ep->ex_defdir->dp_flag |= DP_DEFSET; 10071558Srgrimes else while (grp) { 10081558Srgrimes hp = get_ht(); 10091558Srgrimes hp->ht_grp = grp; 10101558Srgrimes hp->ht_next = ep->ex_defdir->dp_hosts; 10111558Srgrimes ep->ex_defdir->dp_hosts = hp; 10121558Srgrimes grp = grp->gr_next; 10131558Srgrimes } 10141558Srgrimes } else { 10151558Srgrimes 10161558Srgrimes /* 10171558Srgrimes * Loop throught the directories adding them to the tree. 10181558Srgrimes */ 10191558Srgrimes while (dp) { 10201558Srgrimes dp2 = dp->dp_left; 10211558Srgrimes add_dlist(&ep->ex_dirl, dp, grp); 10221558Srgrimes dp = dp2; 10231558Srgrimes } 10241558Srgrimes } 10251558Srgrimes} 10261558Srgrimes 10271558Srgrimes/* 10281558Srgrimes * Traverse the binary tree either updating a node that is already there 10291558Srgrimes * for the new directory or adding the new node. 10301558Srgrimes */ 10311558Srgrimesvoid 10321558Srgrimesadd_dlist(dpp, newdp, grp) 10331558Srgrimes struct dirlist **dpp; 10341558Srgrimes struct dirlist *newdp; 10351558Srgrimes struct grouplist *grp; 10361558Srgrimes{ 10371558Srgrimes struct dirlist *dp; 10381558Srgrimes struct hostlist *hp; 10391558Srgrimes int cmp; 10401558Srgrimes 10411558Srgrimes dp = *dpp; 10421558Srgrimes if (dp) { 10431558Srgrimes cmp = strcmp(dp->dp_dirp, newdp->dp_dirp); 10441558Srgrimes if (cmp > 0) { 10451558Srgrimes add_dlist(&dp->dp_left, newdp, grp); 10461558Srgrimes return; 10471558Srgrimes } else if (cmp < 0) { 10481558Srgrimes add_dlist(&dp->dp_right, newdp, grp); 10491558Srgrimes return; 10501558Srgrimes } else 10511558Srgrimes free((caddr_t)newdp); 10521558Srgrimes } else { 10531558Srgrimes dp = newdp; 10541558Srgrimes dp->dp_left = (struct dirlist *)NULL; 10551558Srgrimes *dpp = dp; 10561558Srgrimes } 10571558Srgrimes if (grp) { 10581558Srgrimes 10591558Srgrimes /* 10601558Srgrimes * Hang all of the host(s) off of the directory point. 10611558Srgrimes */ 10621558Srgrimes do { 10631558Srgrimes hp = get_ht(); 10641558Srgrimes hp->ht_grp = grp; 10651558Srgrimes hp->ht_next = dp->dp_hosts; 10661558Srgrimes dp->dp_hosts = hp; 10671558Srgrimes grp = grp->gr_next; 10681558Srgrimes } while (grp); 10691558Srgrimes } else 10701558Srgrimes dp->dp_flag |= DP_DEFSET; 10711558Srgrimes} 10721558Srgrimes 10731558Srgrimes/* 10741558Srgrimes * Search for a dirpath on the export point. 10751558Srgrimes */ 10761558Srgrimesstruct dirlist * 10771558Srgrimesdirp_search(dp, dirpath) 10781558Srgrimes struct dirlist *dp; 10791558Srgrimes char *dirpath; 10801558Srgrimes{ 10811558Srgrimes int cmp; 10821558Srgrimes 10831558Srgrimes if (dp) { 10841558Srgrimes cmp = strcmp(dp->dp_dirp, dirpath); 10851558Srgrimes if (cmp > 0) 10861558Srgrimes return (dirp_search(dp->dp_left, dirpath)); 10871558Srgrimes else if (cmp < 0) 10881558Srgrimes return (dirp_search(dp->dp_right, dirpath)); 10891558Srgrimes else 10901558Srgrimes return (dp); 10911558Srgrimes } 10921558Srgrimes return (dp); 10931558Srgrimes} 10941558Srgrimes 10951558Srgrimes/* 10961558Srgrimes * Scan for a host match in a directory tree. 10971558Srgrimes */ 10981558Srgrimesint 10991558Srgrimeschk_host(dp, saddr, defsetp) 11001558Srgrimes struct dirlist *dp; 11011558Srgrimes u_long saddr; 11021558Srgrimes int *defsetp; 11031558Srgrimes{ 11041558Srgrimes struct hostlist *hp; 11051558Srgrimes struct grouplist *grp; 11061558Srgrimes u_long **addrp; 11071558Srgrimes 11081558Srgrimes if (dp) { 11091558Srgrimes if (dp->dp_flag & DP_DEFSET) 11101558Srgrimes *defsetp = 1; 11111558Srgrimes hp = dp->dp_hosts; 11121558Srgrimes while (hp) { 11131558Srgrimes grp = hp->ht_grp; 11141558Srgrimes switch (grp->gr_type) { 11151558Srgrimes case GT_HOST: 11161558Srgrimes addrp = (u_long **) 11171558Srgrimes grp->gr_ptr.gt_hostent->h_addr_list; 11181558Srgrimes while (*addrp) { 11191558Srgrimes if (**addrp == saddr) 11201558Srgrimes return (1); 11211558Srgrimes addrp++; 11221558Srgrimes } 11231558Srgrimes break; 11241558Srgrimes case GT_NET: 11251558Srgrimes if ((saddr & grp->gr_ptr.gt_net.nt_mask) == 11261558Srgrimes grp->gr_ptr.gt_net.nt_net) 11271558Srgrimes return (1); 11281558Srgrimes break; 11291558Srgrimes }; 11301558Srgrimes hp = hp->ht_next; 11311558Srgrimes } 11321558Srgrimes } 11331558Srgrimes return (0); 11341558Srgrimes} 11351558Srgrimes 11361558Srgrimes/* 11371558Srgrimes * Scan tree for a host that matches the address. 11381558Srgrimes */ 11391558Srgrimesint 11401558Srgrimesscan_tree(dp, saddr) 11411558Srgrimes struct dirlist *dp; 11421558Srgrimes u_long saddr; 11431558Srgrimes{ 11441558Srgrimes int defset; 11451558Srgrimes 11461558Srgrimes if (dp) { 11471558Srgrimes if (scan_tree(dp->dp_left, saddr)) 11481558Srgrimes return (1); 11491558Srgrimes if (chk_host(dp, saddr, &defset)) 11501558Srgrimes return (1); 11511558Srgrimes if (scan_tree(dp->dp_right, saddr)) 11521558Srgrimes return (1); 11531558Srgrimes } 11541558Srgrimes return (0); 11551558Srgrimes} 11561558Srgrimes 11571558Srgrimes/* 11581558Srgrimes * Traverse the dirlist tree and free it up. 11591558Srgrimes */ 11601558Srgrimesvoid 11611558Srgrimesfree_dir(dp) 11621558Srgrimes struct dirlist *dp; 11631558Srgrimes{ 11641558Srgrimes 11651558Srgrimes if (dp) { 11661558Srgrimes free_dir(dp->dp_left); 11671558Srgrimes free_dir(dp->dp_right); 11681558Srgrimes free_host(dp->dp_hosts); 11691558Srgrimes free((caddr_t)dp); 11701558Srgrimes } 11711558Srgrimes} 11721558Srgrimes 11731558Srgrimes/* 11741558Srgrimes * Parse the option string and update fields. 11751558Srgrimes * Option arguments may either be -<option>=<value> or 11761558Srgrimes * -<option> <value> 11771558Srgrimes */ 11781558Srgrimesint 11791558Srgrimesdo_opt(cpp, endcpp, ep, grp, has_hostp, exflagsp, cr) 11801558Srgrimes char **cpp, **endcpp; 11811558Srgrimes struct exportlist *ep; 11821558Srgrimes struct grouplist *grp; 11831558Srgrimes int *has_hostp; 11841558Srgrimes int *exflagsp; 11851558Srgrimes struct ucred *cr; 11861558Srgrimes{ 11871558Srgrimes char *cpoptarg, *cpoptend; 11881558Srgrimes char *cp, *endcp, *cpopt, savedc, savedc2; 11891558Srgrimes int allflag, usedarg; 11901558Srgrimes 11911558Srgrimes cpopt = *cpp; 11921558Srgrimes cpopt++; 11931558Srgrimes cp = *endcpp; 11941558Srgrimes savedc = *cp; 11951558Srgrimes *cp = '\0'; 11961558Srgrimes while (cpopt && *cpopt) { 11971558Srgrimes allflag = 1; 11981558Srgrimes usedarg = -2; 11991558Srgrimes if (cpoptend = index(cpopt, ',')) { 12001558Srgrimes *cpoptend++ = '\0'; 12011558Srgrimes if (cpoptarg = index(cpopt, '=')) 12021558Srgrimes *cpoptarg++ = '\0'; 12031558Srgrimes } else { 12041558Srgrimes if (cpoptarg = index(cpopt, '=')) 12051558Srgrimes *cpoptarg++ = '\0'; 12061558Srgrimes else { 12071558Srgrimes *cp = savedc; 12081558Srgrimes nextfield(&cp, &endcp); 12091558Srgrimes **endcpp = '\0'; 12101558Srgrimes if (endcp > cp && *cp != '-') { 12111558Srgrimes cpoptarg = cp; 12121558Srgrimes savedc2 = *endcp; 12131558Srgrimes *endcp = '\0'; 12141558Srgrimes usedarg = 0; 12151558Srgrimes } 12161558Srgrimes } 12171558Srgrimes } 12181558Srgrimes if (!strcmp(cpopt, "ro") || !strcmp(cpopt, "o")) { 12191558Srgrimes *exflagsp |= MNT_EXRDONLY; 12201558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "maproot") || 12211558Srgrimes !(allflag = strcmp(cpopt, "mapall")) || 12221558Srgrimes !strcmp(cpopt, "root") || !strcmp(cpopt, "r"))) { 12231558Srgrimes usedarg++; 12241558Srgrimes parsecred(cpoptarg, cr); 12251558Srgrimes if (allflag == 0) { 12261558Srgrimes *exflagsp |= MNT_EXPORTANON; 12271558Srgrimes opt_flags |= OP_MAPALL; 12281558Srgrimes } else 12291558Srgrimes opt_flags |= OP_MAPROOT; 12301558Srgrimes } else if (!strcmp(cpopt, "kerb") || !strcmp(cpopt, "k")) { 12311558Srgrimes *exflagsp |= MNT_EXKERB; 12321558Srgrimes opt_flags |= OP_KERB; 12331558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "mask") || 12341558Srgrimes !strcmp(cpopt, "m"))) { 12351558Srgrimes if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 1)) { 12361558Srgrimes syslog(LOG_ERR, "Bad mask: %s", cpoptarg); 12371558Srgrimes return (1); 12381558Srgrimes } 12391558Srgrimes usedarg++; 12401558Srgrimes opt_flags |= OP_MASK; 12411558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "network") || 12421558Srgrimes !strcmp(cpopt, "n"))) { 12431558Srgrimes if (grp->gr_type != GT_NULL) { 12441558Srgrimes syslog(LOG_ERR, "Network/host conflict"); 12451558Srgrimes return (1); 12461558Srgrimes } else if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 0)) { 12471558Srgrimes syslog(LOG_ERR, "Bad net: %s", cpoptarg); 12481558Srgrimes return (1); 12491558Srgrimes } 12501558Srgrimes grp->gr_type = GT_NET; 12511558Srgrimes *has_hostp = 1; 12521558Srgrimes usedarg++; 12531558Srgrimes opt_flags |= OP_NET; 12541558Srgrimes } else if (!strcmp(cpopt, "alldirs")) { 12551558Srgrimes opt_flags |= OP_ALLDIRS; 12561558Srgrimes#ifdef ISO 12571558Srgrimes } else if (cpoptarg && !strcmp(cpopt, "iso")) { 12581558Srgrimes if (get_isoaddr(cpoptarg, grp)) { 12591558Srgrimes syslog(LOG_ERR, "Bad iso addr: %s", cpoptarg); 12601558Srgrimes return (1); 12611558Srgrimes } 12621558Srgrimes *has_hostp = 1; 12631558Srgrimes usedarg++; 12641558Srgrimes opt_flags |= OP_ISO; 12651558Srgrimes#endif /* ISO */ 12661558Srgrimes } else { 12671558Srgrimes syslog(LOG_ERR, "Bad opt %s", cpopt); 12681558Srgrimes return (1); 12691558Srgrimes } 12701558Srgrimes if (usedarg >= 0) { 12711558Srgrimes *endcp = savedc2; 12721558Srgrimes **endcpp = savedc; 12731558Srgrimes if (usedarg > 0) { 12741558Srgrimes *cpp = cp; 12751558Srgrimes *endcpp = endcp; 12761558Srgrimes } 12771558Srgrimes return (0); 12781558Srgrimes } 12791558Srgrimes cpopt = cpoptend; 12801558Srgrimes } 12811558Srgrimes **endcpp = savedc; 12821558Srgrimes return (0); 12831558Srgrimes} 12841558Srgrimes 12851558Srgrimes/* 12861558Srgrimes * Translate a character string to the corresponding list of network 12871558Srgrimes * addresses for a hostname. 12881558Srgrimes */ 12891558Srgrimesint 12907401Swpaulget_host(cp, grp, tgrp) 12911558Srgrimes char *cp; 12921558Srgrimes struct grouplist *grp; 12937401Swpaul struct grouplist *tgrp; 12941558Srgrimes{ 12957401Swpaul struct grouplist *checkgrp; 12961558Srgrimes struct hostent *hp, *nhp; 12971558Srgrimes char **addrp, **naddrp; 12981558Srgrimes struct hostent t_host; 12991558Srgrimes int i; 13001558Srgrimes u_long saddr; 13011558Srgrimes char *aptr[2]; 13021558Srgrimes 13031558Srgrimes if (grp->gr_type != GT_NULL) 13041558Srgrimes return (1); 13051558Srgrimes if ((hp = gethostbyname(cp)) == NULL) { 13061558Srgrimes if (isdigit(*cp)) { 13071558Srgrimes saddr = inet_addr(cp); 13081558Srgrimes if (saddr == -1) { 13091558Srgrimes syslog(LOG_ERR, "Inet_addr failed"); 13101558Srgrimes return (1); 13111558Srgrimes } 13121558Srgrimes if ((hp = gethostbyaddr((caddr_t)&saddr, sizeof (saddr), 13131558Srgrimes AF_INET)) == NULL) { 13141558Srgrimes hp = &t_host; 13151558Srgrimes hp->h_name = cp; 13161558Srgrimes hp->h_addrtype = AF_INET; 13171558Srgrimes hp->h_length = sizeof (u_long); 13181558Srgrimes hp->h_addr_list = aptr; 13191558Srgrimes aptr[0] = (char *)&saddr; 13201558Srgrimes aptr[1] = (char *)NULL; 13211558Srgrimes } 13221558Srgrimes } else { 13231558Srgrimes syslog(LOG_ERR, "Gethostbyname failed"); 13241558Srgrimes return (1); 13251558Srgrimes } 13261558Srgrimes } 13277401Swpaul /* 13287401Swpaul * Sanity check: make sure we don't already have an entry 13297401Swpaul * for this host in the grouplist. 13307401Swpaul */ 13317401Swpaul checkgrp = tgrp; 13327401Swpaul while (checkgrp) { 13337401Swpaul if (checkgrp->gr_ptr.gt_hostent != NULL && 13347401Swpaul !strcmp(checkgrp->gr_ptr.gt_hostent->h_name, hp->h_name)) { 13357401Swpaul grp->gr_type = GT_IGNORE; 13367401Swpaul return(0); 13377401Swpaul } 13387401Swpaul checkgrp = checkgrp->gr_next; 13397401Swpaul } 13407401Swpaul 13411558Srgrimes grp->gr_type = GT_HOST; 13421558Srgrimes nhp = grp->gr_ptr.gt_hostent = (struct hostent *) 13431558Srgrimes malloc(sizeof(struct hostent)); 13441558Srgrimes if (nhp == (struct hostent *)NULL) 13451558Srgrimes out_of_mem(); 13461558Srgrimes bcopy((caddr_t)hp, (caddr_t)nhp, 13471558Srgrimes sizeof(struct hostent)); 13481558Srgrimes i = strlen(hp->h_name)+1; 13491558Srgrimes nhp->h_name = (char *)malloc(i); 13501558Srgrimes if (nhp->h_name == (char *)NULL) 13511558Srgrimes out_of_mem(); 13521558Srgrimes bcopy(hp->h_name, nhp->h_name, i); 13531558Srgrimes addrp = hp->h_addr_list; 13541558Srgrimes i = 1; 13551558Srgrimes while (*addrp++) 13561558Srgrimes i++; 13571558Srgrimes naddrp = nhp->h_addr_list = (char **) 13581558Srgrimes malloc(i*sizeof(char *)); 13591558Srgrimes if (naddrp == (char **)NULL) 13601558Srgrimes out_of_mem(); 13611558Srgrimes addrp = hp->h_addr_list; 13621558Srgrimes while (*addrp) { 13631558Srgrimes *naddrp = (char *) 13641558Srgrimes malloc(hp->h_length); 13651558Srgrimes if (*naddrp == (char *)NULL) 13661558Srgrimes out_of_mem(); 13671558Srgrimes bcopy(*addrp, *naddrp, 13681558Srgrimes hp->h_length); 13691558Srgrimes addrp++; 13701558Srgrimes naddrp++; 13711558Srgrimes } 13721558Srgrimes *naddrp = (char *)NULL; 13731558Srgrimes if (debug) 13741558Srgrimes fprintf(stderr, "got host %s\n", hp->h_name); 13751558Srgrimes return (0); 13761558Srgrimes} 13771558Srgrimes 13781558Srgrimes/* 13791558Srgrimes * Free up an exports list component 13801558Srgrimes */ 13811558Srgrimesvoid 13821558Srgrimesfree_exp(ep) 13831558Srgrimes struct exportlist *ep; 13841558Srgrimes{ 13851558Srgrimes 13861558Srgrimes if (ep->ex_defdir) { 13871558Srgrimes free_host(ep->ex_defdir->dp_hosts); 13881558Srgrimes free((caddr_t)ep->ex_defdir); 13891558Srgrimes } 13901558Srgrimes if (ep->ex_fsdir) 13911558Srgrimes free(ep->ex_fsdir); 13921558Srgrimes free_dir(ep->ex_dirl); 13931558Srgrimes free((caddr_t)ep); 13941558Srgrimes} 13951558Srgrimes 13961558Srgrimes/* 13971558Srgrimes * Free hosts. 13981558Srgrimes */ 13991558Srgrimesvoid 14001558Srgrimesfree_host(hp) 14011558Srgrimes struct hostlist *hp; 14021558Srgrimes{ 14031558Srgrimes struct hostlist *hp2; 14041558Srgrimes 14051558Srgrimes while (hp) { 14061558Srgrimes hp2 = hp; 14071558Srgrimes hp = hp->ht_next; 14081558Srgrimes free((caddr_t)hp2); 14091558Srgrimes } 14101558Srgrimes} 14111558Srgrimes 14121558Srgrimesstruct hostlist * 14131558Srgrimesget_ht() 14141558Srgrimes{ 14151558Srgrimes struct hostlist *hp; 14161558Srgrimes 14171558Srgrimes hp = (struct hostlist *)malloc(sizeof (struct hostlist)); 14181558Srgrimes if (hp == (struct hostlist *)NULL) 14191558Srgrimes out_of_mem(); 14201558Srgrimes hp->ht_next = (struct hostlist *)NULL; 14211558Srgrimes return (hp); 14221558Srgrimes} 14231558Srgrimes 14241558Srgrimes#ifdef ISO 14251558Srgrimes/* 14261558Srgrimes * Translate an iso address. 14271558Srgrimes */ 14281558Srgrimesget_isoaddr(cp, grp) 14291558Srgrimes char *cp; 14301558Srgrimes struct grouplist *grp; 14311558Srgrimes{ 14321558Srgrimes struct iso_addr *isop; 14331558Srgrimes struct sockaddr_iso *isoaddr; 14341558Srgrimes 14351558Srgrimes if (grp->gr_type != GT_NULL) 14361558Srgrimes return (1); 14371558Srgrimes if ((isop = iso_addr(cp)) == NULL) { 14381558Srgrimes syslog(LOG_ERR, 14391558Srgrimes "iso_addr failed, ignored"); 14401558Srgrimes return (1); 14411558Srgrimes } 14421558Srgrimes isoaddr = (struct sockaddr_iso *) 14431558Srgrimes malloc(sizeof (struct sockaddr_iso)); 14441558Srgrimes if (isoaddr == (struct sockaddr_iso *)NULL) 14451558Srgrimes out_of_mem(); 14461558Srgrimes bzero((caddr_t)isoaddr, sizeof (struct sockaddr_iso)); 14471558Srgrimes bcopy((caddr_t)isop, (caddr_t)&isoaddr->siso_addr, 14481558Srgrimes sizeof (struct iso_addr)); 14491558Srgrimes isoaddr->siso_len = sizeof (struct sockaddr_iso); 14501558Srgrimes isoaddr->siso_family = AF_ISO; 14511558Srgrimes grp->gr_type = GT_ISO; 14521558Srgrimes grp->gr_ptr.gt_isoaddr = isoaddr; 14531558Srgrimes return (0); 14541558Srgrimes} 14551558Srgrimes#endif /* ISO */ 14561558Srgrimes 14571558Srgrimes/* 14581558Srgrimes * Out of memory, fatal 14591558Srgrimes */ 14601558Srgrimesvoid 14611558Srgrimesout_of_mem() 14621558Srgrimes{ 14631558Srgrimes 14641558Srgrimes syslog(LOG_ERR, "Out of memory"); 14651558Srgrimes exit(2); 14661558Srgrimes} 14671558Srgrimes 14681558Srgrimes/* 14691558Srgrimes * Do the mount syscall with the update flag to push the export info into 14701558Srgrimes * the kernel. 14711558Srgrimes */ 14721558Srgrimesint 14731558Srgrimesdo_mount(ep, grp, exflags, anoncrp, dirp, dirplen, fsb) 14741558Srgrimes struct exportlist *ep; 14751558Srgrimes struct grouplist *grp; 14761558Srgrimes int exflags; 14771558Srgrimes struct ucred *anoncrp; 14781558Srgrimes char *dirp; 14791558Srgrimes int dirplen; 14801558Srgrimes struct statfs *fsb; 14811558Srgrimes{ 14821558Srgrimes char *cp = (char *)NULL; 14831558Srgrimes u_long **addrp; 14841558Srgrimes int done; 14851558Srgrimes char savedc = '\0'; 14861558Srgrimes struct sockaddr_in sin, imask; 14871558Srgrimes union { 14881558Srgrimes struct ufs_args ua; 14891558Srgrimes struct iso_args ia; 14901558Srgrimes struct mfs_args ma; 14911558Srgrimes } args; 14921558Srgrimes u_long net; 14931558Srgrimes 14941558Srgrimes args.ua.fspec = 0; 14951558Srgrimes args.ua.export.ex_flags = exflags; 14961558Srgrimes args.ua.export.ex_anon = *anoncrp; 14971558Srgrimes bzero((char *)&sin, sizeof(sin)); 14981558Srgrimes bzero((char *)&imask, sizeof(imask)); 14991558Srgrimes sin.sin_family = AF_INET; 15001558Srgrimes sin.sin_len = sizeof(sin); 15011558Srgrimes imask.sin_family = AF_INET; 15021558Srgrimes imask.sin_len = sizeof(sin); 15031558Srgrimes if (grp->gr_type == GT_HOST) 15041558Srgrimes addrp = (u_long **)grp->gr_ptr.gt_hostent->h_addr_list; 15051558Srgrimes else 15061558Srgrimes addrp = (u_long **)NULL; 15071558Srgrimes done = FALSE; 15081558Srgrimes while (!done) { 15091558Srgrimes switch (grp->gr_type) { 15101558Srgrimes case GT_HOST: 15111558Srgrimes if (addrp) { 15121558Srgrimes sin.sin_addr.s_addr = **addrp; 15131558Srgrimes args.ua.export.ex_addrlen = sizeof(sin); 15141558Srgrimes } else 15151558Srgrimes args.ua.export.ex_addrlen = 0; 15161558Srgrimes args.ua.export.ex_addr = (struct sockaddr *)&sin; 15171558Srgrimes args.ua.export.ex_masklen = 0; 15181558Srgrimes break; 15191558Srgrimes case GT_NET: 15201558Srgrimes if (grp->gr_ptr.gt_net.nt_mask) 15211558Srgrimes imask.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_mask; 15221558Srgrimes else { 15231558Srgrimes net = ntohl(grp->gr_ptr.gt_net.nt_net); 15241558Srgrimes if (IN_CLASSA(net)) 15251558Srgrimes imask.sin_addr.s_addr = inet_addr("255.0.0.0"); 15261558Srgrimes else if (IN_CLASSB(net)) 15271558Srgrimes imask.sin_addr.s_addr = 15281558Srgrimes inet_addr("255.255.0.0"); 15291558Srgrimes else 15301558Srgrimes imask.sin_addr.s_addr = 15311558Srgrimes inet_addr("255.255.255.0"); 15321558Srgrimes grp->gr_ptr.gt_net.nt_mask = imask.sin_addr.s_addr; 15331558Srgrimes } 15341558Srgrimes sin.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_net; 15351558Srgrimes args.ua.export.ex_addr = (struct sockaddr *)&sin; 15361558Srgrimes args.ua.export.ex_addrlen = sizeof (sin); 15371558Srgrimes args.ua.export.ex_mask = (struct sockaddr *)&imask; 15381558Srgrimes args.ua.export.ex_masklen = sizeof (imask); 15391558Srgrimes break; 15401558Srgrimes#ifdef ISO 15411558Srgrimes case GT_ISO: 15421558Srgrimes args.ua.export.ex_addr = 15431558Srgrimes (struct sockaddr *)grp->gr_ptr.gt_isoaddr; 15441558Srgrimes args.ua.export.ex_addrlen = 15451558Srgrimes sizeof(struct sockaddr_iso); 15461558Srgrimes args.ua.export.ex_masklen = 0; 15471558Srgrimes break; 15481558Srgrimes#endif /* ISO */ 15497401Swpaul case GT_IGNORE: 15507401Swpaul return(0); 15517401Swpaul break; 15521558Srgrimes default: 15531558Srgrimes syslog(LOG_ERR, "Bad grouptype"); 15541558Srgrimes if (cp) 15551558Srgrimes *cp = savedc; 15561558Srgrimes return (1); 15571558Srgrimes }; 15581558Srgrimes 15591558Srgrimes /* 15601558Srgrimes * XXX: 15611558Srgrimes * Maybe I should just use the fsb->f_mntonname path instead 15621558Srgrimes * of looping back up the dirp to the mount point?? 15631558Srgrimes * Also, needs to know how to export all types of local 15641558Srgrimes * exportable file systems and not just MOUNT_UFS. 15651558Srgrimes */ 15661558Srgrimes while (mount(fsb->f_type, dirp, 15671558Srgrimes fsb->f_flags | MNT_UPDATE, (caddr_t)&args) < 0) { 15681558Srgrimes if (cp) 15691558Srgrimes *cp-- = savedc; 15701558Srgrimes else 15711558Srgrimes cp = dirp + dirplen - 1; 15721558Srgrimes if (errno == EPERM) { 15731558Srgrimes syslog(LOG_ERR, 15741558Srgrimes "Can't change attributes for %s.\n", dirp); 15751558Srgrimes return (1); 15761558Srgrimes } 15771558Srgrimes if (opt_flags & OP_ALLDIRS) { 15784895Swollman syslog(LOG_ERR, "Could not remount %s: %m", 15794895Swollman dirp); 15801558Srgrimes return (1); 15811558Srgrimes } 15821558Srgrimes /* back up over the last component */ 15831558Srgrimes while (*cp == '/' && cp > dirp) 15841558Srgrimes cp--; 15851558Srgrimes while (*(cp - 1) != '/' && cp > dirp) 15861558Srgrimes cp--; 15871558Srgrimes if (cp == dirp) { 15881558Srgrimes if (debug) 15891558Srgrimes fprintf(stderr,"mnt unsucc\n"); 15901558Srgrimes syslog(LOG_ERR, "Can't export %s", dirp); 15911558Srgrimes return (1); 15921558Srgrimes } 15931558Srgrimes savedc = *cp; 15941558Srgrimes *cp = '\0'; 15951558Srgrimes } 15961558Srgrimes if (addrp) { 15971558Srgrimes ++addrp; 15981558Srgrimes if (*addrp == (u_long *)NULL) 15991558Srgrimes done = TRUE; 16001558Srgrimes } else 16011558Srgrimes done = TRUE; 16021558Srgrimes } 16031558Srgrimes if (cp) 16041558Srgrimes *cp = savedc; 16051558Srgrimes return (0); 16061558Srgrimes} 16071558Srgrimes 16081558Srgrimes/* 16091558Srgrimes * Translate a net address. 16101558Srgrimes */ 16111558Srgrimesint 16121558Srgrimesget_net(cp, net, maskflg) 16131558Srgrimes char *cp; 16141558Srgrimes struct netmsk *net; 16151558Srgrimes int maskflg; 16161558Srgrimes{ 16171558Srgrimes struct netent *np; 16181558Srgrimes long netaddr; 16191558Srgrimes struct in_addr inetaddr, inetaddr2; 16201558Srgrimes char *name; 16211558Srgrimes 16221558Srgrimes if (np = getnetbyname(cp)) 16231558Srgrimes inetaddr = inet_makeaddr(np->n_net, 0); 16241558Srgrimes else if (isdigit(*cp)) { 16251558Srgrimes if ((netaddr = inet_network(cp)) == -1) 16261558Srgrimes return (1); 16271558Srgrimes inetaddr = inet_makeaddr(netaddr, 0); 16281558Srgrimes /* 16291558Srgrimes * Due to arbritrary subnet masks, you don't know how many 16301558Srgrimes * bits to shift the address to make it into a network, 16311558Srgrimes * however you do know how to make a network address into 16321558Srgrimes * a host with host == 0 and then compare them. 16331558Srgrimes * (What a pest) 16341558Srgrimes */ 16351558Srgrimes if (!maskflg) { 16361558Srgrimes setnetent(0); 16371558Srgrimes while (np = getnetent()) { 16381558Srgrimes inetaddr2 = inet_makeaddr(np->n_net, 0); 16391558Srgrimes if (inetaddr2.s_addr == inetaddr.s_addr) 16401558Srgrimes break; 16411558Srgrimes } 16421558Srgrimes endnetent(); 16431558Srgrimes } 16441558Srgrimes } else 16451558Srgrimes return (1); 16461558Srgrimes if (maskflg) 16471558Srgrimes net->nt_mask = inetaddr.s_addr; 16481558Srgrimes else { 16491558Srgrimes if (np) 16501558Srgrimes name = np->n_name; 16511558Srgrimes else 16521558Srgrimes name = inet_ntoa(inetaddr); 16531558Srgrimes net->nt_name = (char *)malloc(strlen(name) + 1); 16541558Srgrimes if (net->nt_name == (char *)NULL) 16551558Srgrimes out_of_mem(); 16561558Srgrimes strcpy(net->nt_name, name); 16571558Srgrimes net->nt_net = inetaddr.s_addr; 16581558Srgrimes } 16591558Srgrimes return (0); 16601558Srgrimes} 16611558Srgrimes 16621558Srgrimes/* 16631558Srgrimes * Parse out the next white space separated field 16641558Srgrimes */ 16651558Srgrimesvoid 16661558Srgrimesnextfield(cp, endcp) 16671558Srgrimes char **cp; 16681558Srgrimes char **endcp; 16691558Srgrimes{ 16701558Srgrimes char *p; 16711558Srgrimes 16721558Srgrimes p = *cp; 16731558Srgrimes while (*p == ' ' || *p == '\t') 16741558Srgrimes p++; 16751558Srgrimes if (*p == '\n' || *p == '\0') 16761558Srgrimes *cp = *endcp = p; 16771558Srgrimes else { 16781558Srgrimes *cp = p++; 16791558Srgrimes while (*p != ' ' && *p != '\t' && *p != '\n' && *p != '\0') 16801558Srgrimes p++; 16811558Srgrimes *endcp = p; 16821558Srgrimes } 16831558Srgrimes} 16841558Srgrimes 16851558Srgrimes/* 16861558Srgrimes * Get an exports file line. Skip over blank lines and handle line 16871558Srgrimes * continuations. 16881558Srgrimes */ 16891558Srgrimesint 16901558Srgrimesget_line() 16911558Srgrimes{ 16921558Srgrimes char *p, *cp; 16931558Srgrimes int len; 16941558Srgrimes int totlen, cont_line; 16951558Srgrimes 16961558Srgrimes /* 16971558Srgrimes * Loop around ignoring blank lines and getting all continuation lines. 16981558Srgrimes */ 16991558Srgrimes p = line; 17001558Srgrimes totlen = 0; 17011558Srgrimes do { 17021558Srgrimes if (fgets(p, LINESIZ - totlen, exp_file) == NULL) 17031558Srgrimes return (0); 17041558Srgrimes len = strlen(p); 17051558Srgrimes cp = p + len - 1; 17061558Srgrimes cont_line = 0; 17071558Srgrimes while (cp >= p && 17081558Srgrimes (*cp == ' ' || *cp == '\t' || *cp == '\n' || *cp == '\\')) { 17091558Srgrimes if (*cp == '\\') 17101558Srgrimes cont_line = 1; 17111558Srgrimes cp--; 17121558Srgrimes len--; 17131558Srgrimes } 17141558Srgrimes *++cp = '\0'; 17151558Srgrimes if (len > 0) { 17161558Srgrimes totlen += len; 17171558Srgrimes if (totlen >= LINESIZ) { 17181558Srgrimes syslog(LOG_ERR, "Exports line too long"); 17191558Srgrimes exit(2); 17201558Srgrimes } 17211558Srgrimes p = cp; 17221558Srgrimes } 17231558Srgrimes } while (totlen == 0 || cont_line); 17241558Srgrimes return (1); 17251558Srgrimes} 17261558Srgrimes 17271558Srgrimes/* 17281558Srgrimes * Parse a description of a credential. 17291558Srgrimes */ 17301558Srgrimesvoid 17311558Srgrimesparsecred(namelist, cr) 17321558Srgrimes char *namelist; 17331558Srgrimes struct ucred *cr; 17341558Srgrimes{ 17351558Srgrimes char *name; 17361558Srgrimes int cnt; 17371558Srgrimes char *names; 17381558Srgrimes struct passwd *pw; 17391558Srgrimes struct group *gr; 17401558Srgrimes int ngroups, groups[NGROUPS + 1]; 17411558Srgrimes 17421558Srgrimes /* 17431558Srgrimes * Set up the unpriviledged user. 17441558Srgrimes */ 17451558Srgrimes cr->cr_ref = 1; 17461558Srgrimes cr->cr_uid = -2; 17471558Srgrimes cr->cr_groups[0] = -2; 17481558Srgrimes cr->cr_ngroups = 1; 17491558Srgrimes /* 17501558Srgrimes * Get the user's password table entry. 17511558Srgrimes */ 17521558Srgrimes names = strsep(&namelist, " \t\n"); 17531558Srgrimes name = strsep(&names, ":"); 17541558Srgrimes if (isdigit(*name) || *name == '-') 17551558Srgrimes pw = getpwuid(atoi(name)); 17561558Srgrimes else 17571558Srgrimes pw = getpwnam(name); 17581558Srgrimes /* 17591558Srgrimes * Credentials specified as those of a user. 17601558Srgrimes */ 17611558Srgrimes if (names == NULL) { 17621558Srgrimes if (pw == NULL) { 17631558Srgrimes syslog(LOG_ERR, "Unknown user: %s", name); 17641558Srgrimes return; 17651558Srgrimes } 17661558Srgrimes cr->cr_uid = pw->pw_uid; 17671558Srgrimes ngroups = NGROUPS + 1; 17681558Srgrimes if (getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups)) 17691558Srgrimes syslog(LOG_ERR, "Too many groups"); 17701558Srgrimes /* 17711558Srgrimes * Convert from int's to gid_t's and compress out duplicate 17721558Srgrimes */ 17731558Srgrimes cr->cr_ngroups = ngroups - 1; 17741558Srgrimes cr->cr_groups[0] = groups[0]; 17751558Srgrimes for (cnt = 2; cnt < ngroups; cnt++) 17761558Srgrimes cr->cr_groups[cnt - 1] = groups[cnt]; 17771558Srgrimes return; 17781558Srgrimes } 17791558Srgrimes /* 17801558Srgrimes * Explicit credential specified as a colon separated list: 17811558Srgrimes * uid:gid:gid:... 17821558Srgrimes */ 17831558Srgrimes if (pw != NULL) 17841558Srgrimes cr->cr_uid = pw->pw_uid; 17851558Srgrimes else if (isdigit(*name) || *name == '-') 17861558Srgrimes cr->cr_uid = atoi(name); 17871558Srgrimes else { 17881558Srgrimes syslog(LOG_ERR, "Unknown user: %s", name); 17891558Srgrimes return; 17901558Srgrimes } 17911558Srgrimes cr->cr_ngroups = 0; 17921558Srgrimes while (names != NULL && *names != '\0' && cr->cr_ngroups < NGROUPS) { 17931558Srgrimes name = strsep(&names, ":"); 17941558Srgrimes if (isdigit(*name) || *name == '-') { 17951558Srgrimes cr->cr_groups[cr->cr_ngroups++] = atoi(name); 17961558Srgrimes } else { 17971558Srgrimes if ((gr = getgrnam(name)) == NULL) { 17981558Srgrimes syslog(LOG_ERR, "Unknown group: %s", name); 17991558Srgrimes continue; 18001558Srgrimes } 18011558Srgrimes cr->cr_groups[cr->cr_ngroups++] = gr->gr_gid; 18021558Srgrimes } 18031558Srgrimes } 18041558Srgrimes if (names != NULL && *names != '\0' && cr->cr_ngroups == NGROUPS) 18051558Srgrimes syslog(LOG_ERR, "Too many groups"); 18061558Srgrimes} 18071558Srgrimes 18081558Srgrimes#define STRSIZ (RPCMNT_NAMELEN+RPCMNT_PATHLEN+50) 18091558Srgrimes/* 18101558Srgrimes * Routines that maintain the remote mounttab 18111558Srgrimes */ 18121558Srgrimesvoid 18131558Srgrimesget_mountlist() 18141558Srgrimes{ 18151558Srgrimes struct mountlist *mlp, **mlpp; 18161558Srgrimes char *eos, *dirp; 18171558Srgrimes int len; 18181558Srgrimes char str[STRSIZ]; 18191558Srgrimes FILE *mlfile; 18201558Srgrimes 18211558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "r")) == NULL) { 18221558Srgrimes syslog(LOG_ERR, "Can't open %s", _PATH_RMOUNTLIST); 18231558Srgrimes return; 18241558Srgrimes } 18251558Srgrimes mlpp = &mlhead; 18261558Srgrimes while (fgets(str, STRSIZ, mlfile) != NULL) { 18271558Srgrimes if ((dirp = index(str, '\t')) == NULL && 18281558Srgrimes (dirp = index(str, ' ')) == NULL) 18291558Srgrimes continue; 18301558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 18311558Srgrimes len = dirp-str; 18321558Srgrimes if (len > RPCMNT_NAMELEN) 18331558Srgrimes len = RPCMNT_NAMELEN; 18341558Srgrimes bcopy(str, mlp->ml_host, len); 18351558Srgrimes mlp->ml_host[len] = '\0'; 18361558Srgrimes while (*dirp == '\t' || *dirp == ' ') 18371558Srgrimes dirp++; 18381558Srgrimes if ((eos = index(dirp, '\t')) == NULL && 18391558Srgrimes (eos = index(dirp, ' ')) == NULL && 18401558Srgrimes (eos = index(dirp, '\n')) == NULL) 18411558Srgrimes len = strlen(dirp); 18421558Srgrimes else 18431558Srgrimes len = eos-dirp; 18441558Srgrimes if (len > RPCMNT_PATHLEN) 18451558Srgrimes len = RPCMNT_PATHLEN; 18461558Srgrimes bcopy(dirp, mlp->ml_dirp, len); 18471558Srgrimes mlp->ml_dirp[len] = '\0'; 18481558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 18491558Srgrimes *mlpp = mlp; 18501558Srgrimes mlpp = &mlp->ml_next; 18511558Srgrimes } 18521558Srgrimes fclose(mlfile); 18531558Srgrimes} 18541558Srgrimes 18551558Srgrimesvoid 18561558Srgrimesdel_mlist(hostp, dirp) 18571558Srgrimes char *hostp, *dirp; 18581558Srgrimes{ 18591558Srgrimes struct mountlist *mlp, **mlpp; 18601558Srgrimes struct mountlist *mlp2; 18611558Srgrimes FILE *mlfile; 18621558Srgrimes int fnd = 0; 18631558Srgrimes 18641558Srgrimes mlpp = &mlhead; 18651558Srgrimes mlp = mlhead; 18661558Srgrimes while (mlp) { 18671558Srgrimes if (!strcmp(mlp->ml_host, hostp) && 18681558Srgrimes (!dirp || !strcmp(mlp->ml_dirp, dirp))) { 18691558Srgrimes fnd = 1; 18701558Srgrimes mlp2 = mlp; 18711558Srgrimes *mlpp = mlp = mlp->ml_next; 18721558Srgrimes free((caddr_t)mlp2); 18731558Srgrimes } else { 18741558Srgrimes mlpp = &mlp->ml_next; 18751558Srgrimes mlp = mlp->ml_next; 18761558Srgrimes } 18771558Srgrimes } 18781558Srgrimes if (fnd) { 18791558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "w")) == NULL) { 18801558Srgrimes syslog(LOG_ERR,"Can't update %s", _PATH_RMOUNTLIST); 18811558Srgrimes return; 18821558Srgrimes } 18831558Srgrimes mlp = mlhead; 18841558Srgrimes while (mlp) { 18851558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 18861558Srgrimes mlp = mlp->ml_next; 18871558Srgrimes } 18881558Srgrimes fclose(mlfile); 18891558Srgrimes } 18901558Srgrimes} 18911558Srgrimes 18921558Srgrimesvoid 18931558Srgrimesadd_mlist(hostp, dirp) 18941558Srgrimes char *hostp, *dirp; 18951558Srgrimes{ 18961558Srgrimes struct mountlist *mlp, **mlpp; 18971558Srgrimes FILE *mlfile; 18981558Srgrimes 18991558Srgrimes mlpp = &mlhead; 19001558Srgrimes mlp = mlhead; 19011558Srgrimes while (mlp) { 19021558Srgrimes if (!strcmp(mlp->ml_host, hostp) && !strcmp(mlp->ml_dirp, dirp)) 19031558Srgrimes return; 19041558Srgrimes mlpp = &mlp->ml_next; 19051558Srgrimes mlp = mlp->ml_next; 19061558Srgrimes } 19071558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 19081558Srgrimes strncpy(mlp->ml_host, hostp, RPCMNT_NAMELEN); 19091558Srgrimes mlp->ml_host[RPCMNT_NAMELEN] = '\0'; 19101558Srgrimes strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN); 19111558Srgrimes mlp->ml_dirp[RPCMNT_PATHLEN] = '\0'; 19121558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 19131558Srgrimes *mlpp = mlp; 19141558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "a")) == NULL) { 19151558Srgrimes syslog(LOG_ERR, "Can't update %s", _PATH_RMOUNTLIST); 19161558Srgrimes return; 19171558Srgrimes } 19181558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 19191558Srgrimes fclose(mlfile); 19201558Srgrimes} 19211558Srgrimes 19221558Srgrimes/* 19231558Srgrimes * This function is called via. SIGTERM when the system is going down. 19241558Srgrimes * It sends a broadcast RPCMNT_UMNTALL. 19251558Srgrimes */ 19261558Srgrimesvoid 19271558Srgrimessend_umntall() 19281558Srgrimes{ 19291558Srgrimes (void) clnt_broadcast(RPCPROG_MNT, RPCMNT_VER1, RPCMNT_UMNTALL, 19301558Srgrimes xdr_void, (caddr_t)0, xdr_void, (caddr_t)0, umntall_each); 19311558Srgrimes exit(0); 19321558Srgrimes} 19331558Srgrimes 19341558Srgrimesint 19351558Srgrimesumntall_each(resultsp, raddr) 19361558Srgrimes caddr_t resultsp; 19371558Srgrimes struct sockaddr_in *raddr; 19381558Srgrimes{ 19391558Srgrimes return (1); 19401558Srgrimes} 19411558Srgrimes 19421558Srgrimes/* 19431558Srgrimes * Free up a group list. 19441558Srgrimes */ 19451558Srgrimesvoid 19461558Srgrimesfree_grp(grp) 19471558Srgrimes struct grouplist *grp; 19481558Srgrimes{ 19491558Srgrimes char **addrp; 19501558Srgrimes 19511558Srgrimes if (grp->gr_type == GT_HOST) { 19521558Srgrimes if (grp->gr_ptr.gt_hostent->h_name) { 19531558Srgrimes addrp = grp->gr_ptr.gt_hostent->h_addr_list; 19541558Srgrimes while (addrp && *addrp) 19551558Srgrimes free(*addrp++); 19561558Srgrimes free((caddr_t)grp->gr_ptr.gt_hostent->h_addr_list); 19571558Srgrimes free(grp->gr_ptr.gt_hostent->h_name); 19581558Srgrimes } 19591558Srgrimes free((caddr_t)grp->gr_ptr.gt_hostent); 19601558Srgrimes } else if (grp->gr_type == GT_NET) { 19611558Srgrimes if (grp->gr_ptr.gt_net.nt_name) 19621558Srgrimes free(grp->gr_ptr.gt_net.nt_name); 19631558Srgrimes } 19641558Srgrimes#ifdef ISO 19651558Srgrimes else if (grp->gr_type == GT_ISO) 19661558Srgrimes free((caddr_t)grp->gr_ptr.gt_isoaddr); 19671558Srgrimes#endif 19681558Srgrimes free((caddr_t)grp); 19691558Srgrimes} 19701558Srgrimes 19711558Srgrimes#ifdef DEBUG 19721558Srgrimesvoid 19731558SrgrimesSYSLOG(int pri, const char *fmt, ...) 19741558Srgrimes{ 19751558Srgrimes va_list ap; 19761558Srgrimes 19771558Srgrimes va_start(ap, fmt); 19781558Srgrimes vfprintf(stderr, fmt, ap); 19791558Srgrimes va_end(ap); 19801558Srgrimes} 19811558Srgrimes#endif /* DEBUG */ 19821558Srgrimes 19831558Srgrimes/* 19841558Srgrimes * Check options for consistency. 19851558Srgrimes */ 19861558Srgrimesint 19871558Srgrimescheck_options(dp) 19881558Srgrimes struct dirlist *dp; 19891558Srgrimes{ 19901558Srgrimes 19911558Srgrimes if (dp == (struct dirlist *)NULL) 19921558Srgrimes return (1); 19931558Srgrimes if ((opt_flags & (OP_MAPROOT | OP_MAPALL)) == (OP_MAPROOT | OP_MAPALL) || 19941558Srgrimes (opt_flags & (OP_MAPROOT | OP_KERB)) == (OP_MAPROOT | OP_KERB) || 19951558Srgrimes (opt_flags & (OP_MAPALL | OP_KERB)) == (OP_MAPALL | OP_KERB)) { 19961558Srgrimes syslog(LOG_ERR, "-mapall, -maproot and -kerb mutually exclusive"); 19971558Srgrimes return (1); 19981558Srgrimes } 19991558Srgrimes if ((opt_flags & OP_MASK) && (opt_flags & OP_NET) == 0) { 20001558Srgrimes syslog(LOG_ERR, "-mask requires -net"); 20011558Srgrimes return (1); 20021558Srgrimes } 20031558Srgrimes if ((opt_flags & (OP_NET | OP_ISO)) == (OP_NET | OP_ISO)) { 20041558Srgrimes syslog(LOG_ERR, "-net and -iso mutually exclusive"); 20051558Srgrimes return (1); 20061558Srgrimes } 20071558Srgrimes if ((opt_flags & OP_ALLDIRS) && dp->dp_left) { 20081558Srgrimes syslog(LOG_ERR, "-alldir has multiple directories"); 20091558Srgrimes return (1); 20101558Srgrimes } 20111558Srgrimes return (0); 20121558Srgrimes} 20131558Srgrimes 20141558Srgrimes/* 20151558Srgrimes * Check an absolute directory path for any symbolic links. Return true 20161558Srgrimes * if no symbolic links are found. 20171558Srgrimes */ 20181558Srgrimesint 20191558Srgrimescheck_dirpath(dirp) 20201558Srgrimes char *dirp; 20211558Srgrimes{ 20221558Srgrimes char *cp; 20231558Srgrimes int ret = 1; 20241558Srgrimes struct stat sb; 20251558Srgrimes 20261558Srgrimes cp = dirp + 1; 20271558Srgrimes while (*cp && ret) { 20281558Srgrimes if (*cp == '/') { 20291558Srgrimes *cp = '\0'; 20301558Srgrimes if (lstat(dirp, &sb) < 0 || 20311558Srgrimes (sb.st_mode & S_IFMT) != S_IFDIR) 20321558Srgrimes ret = 0; 20331558Srgrimes *cp = '/'; 20341558Srgrimes } 20351558Srgrimes cp++; 20361558Srgrimes } 20371558Srgrimes if (lstat(dirp, &sb) < 0 || 20381558Srgrimes (sb.st_mode & S_IFMT) != S_IFDIR) 20391558Srgrimes ret = 0; 20401558Srgrimes return (ret); 20411558Srgrimes} 2042