mountd.c revision 8871
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[] = 468871Srgrimes "$Id: mountd.c,v 1.6 1995/05/21 19:31:09 phk 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 2548688Sphk while ((c = getopt(argc, argv, "dn")) != EOF) 2551558Srgrimes switch (c) { 2568688Sphk case 'd': 2578688Sphk debug = debug ? 0 : 1; 2588688Sphk break; 2591558Srgrimes case 'n': 2601558Srgrimes root_only = 0; 2611558Srgrimes break; 2621558Srgrimes default: 2631558Srgrimes fprintf(stderr, "Usage: mountd [-n] [export_file]\n"); 2641558Srgrimes exit(1); 2651558Srgrimes }; 2661558Srgrimes argc -= optind; 2671558Srgrimes argv += optind; 2681558Srgrimes grphead = (struct grouplist *)NULL; 2691558Srgrimes exphead = (struct exportlist *)NULL; 2701558Srgrimes mlhead = (struct mountlist *)NULL; 2711558Srgrimes if (argc == 1) { 2721558Srgrimes strncpy(exname, *argv, MAXPATHLEN-1); 2731558Srgrimes exname[MAXPATHLEN-1] = '\0'; 2741558Srgrimes } else 2751558Srgrimes strcpy(exname, _PATH_EXPORTS); 2761558Srgrimes openlog("mountd", LOG_PID, LOG_DAEMON); 2771558Srgrimes if (debug) 2781558Srgrimes fprintf(stderr,"Getting export list.\n"); 2791558Srgrimes get_exportlist(); 2801558Srgrimes if (debug) 2811558Srgrimes fprintf(stderr,"Getting mount list.\n"); 2821558Srgrimes get_mountlist(); 2831558Srgrimes if (debug) 2841558Srgrimes fprintf(stderr,"Here we go.\n"); 2851558Srgrimes if (debug == 0) { 2861558Srgrimes daemon(0, 0); 2871558Srgrimes signal(SIGINT, SIG_IGN); 2881558Srgrimes signal(SIGQUIT, SIG_IGN); 2891558Srgrimes } 2901558Srgrimes signal(SIGHUP, (void (*) __P((int))) get_exportlist); 2911558Srgrimes signal(SIGTERM, (void (*) __P((int))) send_umntall); 2921558Srgrimes { FILE *pidfile = fopen(_PATH_MOUNTDPID, "w"); 2931558Srgrimes if (pidfile != NULL) { 2941558Srgrimes fprintf(pidfile, "%d\n", getpid()); 2951558Srgrimes fclose(pidfile); 2961558Srgrimes } 2971558Srgrimes } 2981558Srgrimes if ((transp = svcudp_create(RPC_ANYSOCK)) == NULL) { 2991558Srgrimes syslog(LOG_ERR, "Can't create socket"); 3001558Srgrimes exit(1); 3011558Srgrimes } 3021558Srgrimes pmap_unset(RPCPROG_MNT, RPCMNT_VER1); 3031558Srgrimes if (!svc_register(transp, RPCPROG_MNT, RPCMNT_VER1, mntsrv, 3041558Srgrimes IPPROTO_UDP)) { 3051558Srgrimes syslog(LOG_ERR, "Can't register mount"); 3061558Srgrimes exit(1); 3071558Srgrimes } 3081558Srgrimes svc_run(); 3091558Srgrimes syslog(LOG_ERR, "Mountd died"); 3101558Srgrimes exit(1); 3111558Srgrimes} 3121558Srgrimes 3131558Srgrimes/* 3141558Srgrimes * The mount rpc service 3151558Srgrimes */ 3161558Srgrimesvoid 3171558Srgrimesmntsrv(rqstp, transp) 3181558Srgrimes struct svc_req *rqstp; 3191558Srgrimes SVCXPRT *transp; 3201558Srgrimes{ 3211558Srgrimes struct exportlist *ep; 3221558Srgrimes struct dirlist *dp; 3231558Srgrimes nfsv2fh_t nfh; 3241558Srgrimes struct authunix_parms *ucr; 3251558Srgrimes struct stat stb; 3261558Srgrimes struct statfs fsb; 3271558Srgrimes struct hostent *hp; 3281558Srgrimes u_long saddr; 3291558Srgrimes char rpcpath[RPCMNT_PATHLEN+1], dirpath[MAXPATHLEN]; 3301558Srgrimes int bad = ENOENT, omask, defset; 3311558Srgrimes uid_t uid = -2; 3321558Srgrimes 3331558Srgrimes /* Get authorization */ 3341558Srgrimes switch (rqstp->rq_cred.oa_flavor) { 3351558Srgrimes case AUTH_UNIX: 3361558Srgrimes ucr = (struct authunix_parms *)rqstp->rq_clntcred; 3371558Srgrimes uid = ucr->aup_uid; 3381558Srgrimes break; 3391558Srgrimes case AUTH_NULL: 3401558Srgrimes default: 3411558Srgrimes break; 3421558Srgrimes } 3431558Srgrimes 3441558Srgrimes saddr = transp->xp_raddr.sin_addr.s_addr; 3451558Srgrimes hp = (struct hostent *)NULL; 3461558Srgrimes switch (rqstp->rq_proc) { 3471558Srgrimes case NULLPROC: 3481558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 3491558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3501558Srgrimes return; 3511558Srgrimes case RPCMNT_MOUNT: 3521558Srgrimes if ((uid != 0 && root_only) || uid == -2) { 3531558Srgrimes svcerr_weakauth(transp); 3541558Srgrimes return; 3551558Srgrimes } 3561558Srgrimes if (!svc_getargs(transp, xdr_dir, rpcpath)) { 3571558Srgrimes svcerr_decode(transp); 3581558Srgrimes return; 3591558Srgrimes } 3601558Srgrimes 3611558Srgrimes /* 3621558Srgrimes * Get the real pathname and make sure it is a directory 3631558Srgrimes * that exists. 3641558Srgrimes */ 3651558Srgrimes if (realpath(rpcpath, dirpath) == 0 || 3661558Srgrimes stat(dirpath, &stb) < 0 || 3671558Srgrimes (stb.st_mode & S_IFMT) != S_IFDIR || 3681558Srgrimes statfs(dirpath, &fsb) < 0) { 3691558Srgrimes chdir("/"); /* Just in case realpath doesn't */ 3701558Srgrimes if (debug) 3711558Srgrimes fprintf(stderr, "stat failed on %s\n", dirpath); 3721558Srgrimes if (!svc_sendreply(transp, xdr_long, (caddr_t)&bad)) 3731558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3741558Srgrimes return; 3751558Srgrimes } 3761558Srgrimes 3771558Srgrimes /* Check in the exports list */ 3781558Srgrimes omask = sigblock(sigmask(SIGHUP)); 3791558Srgrimes ep = ex_search(&fsb.f_fsid); 3801558Srgrimes defset = 0; 3811558Srgrimes if (ep && (chk_host(ep->ex_defdir, saddr, &defset) || 3821558Srgrimes ((dp = dirp_search(ep->ex_dirl, dirpath)) && 3831558Srgrimes chk_host(dp, saddr, &defset)) || 3841558Srgrimes (defset && scan_tree(ep->ex_defdir, saddr) == 0 && 3851558Srgrimes scan_tree(ep->ex_dirl, saddr) == 0))) { 3861558Srgrimes /* Get the file handle */ 3871558Srgrimes bzero((caddr_t)&nfh, sizeof(nfh)); 3881558Srgrimes if (getfh(dirpath, (fhandle_t *)&nfh) < 0) { 3891558Srgrimes bad = errno; 3901558Srgrimes syslog(LOG_ERR, "Can't get fh for %s", dirpath); 3911558Srgrimes if (!svc_sendreply(transp, xdr_long, 3921558Srgrimes (caddr_t)&bad)) 3931558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3941558Srgrimes sigsetmask(omask); 3951558Srgrimes return; 3961558Srgrimes } 3971558Srgrimes if (!svc_sendreply(transp, xdr_fhs, (caddr_t)&nfh)) 3981558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3991558Srgrimes if (hp == NULL) 4001558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, 4011558Srgrimes sizeof(saddr), AF_INET); 4021558Srgrimes if (hp) 4031558Srgrimes add_mlist(hp->h_name, dirpath); 4041558Srgrimes else 4051558Srgrimes add_mlist(inet_ntoa(transp->xp_raddr.sin_addr), 4061558Srgrimes dirpath); 4071558Srgrimes if (debug) 4081558Srgrimes fprintf(stderr,"Mount successfull.\n"); 4091558Srgrimes } else { 4101558Srgrimes bad = EACCES; 4111558Srgrimes if (!svc_sendreply(transp, xdr_long, (caddr_t)&bad)) 4121558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4131558Srgrimes } 4141558Srgrimes sigsetmask(omask); 4151558Srgrimes return; 4161558Srgrimes case RPCMNT_DUMP: 4171558Srgrimes if (!svc_sendreply(transp, xdr_mlist, (caddr_t)NULL)) 4181558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4191558Srgrimes return; 4201558Srgrimes case RPCMNT_UMOUNT: 4211558Srgrimes if ((uid != 0 && root_only) || uid == -2) { 4221558Srgrimes svcerr_weakauth(transp); 4231558Srgrimes return; 4241558Srgrimes } 4251558Srgrimes if (!svc_getargs(transp, xdr_dir, dirpath)) { 4261558Srgrimes svcerr_decode(transp); 4271558Srgrimes return; 4281558Srgrimes } 4291558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 4301558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4311558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET); 4321558Srgrimes if (hp) 4331558Srgrimes del_mlist(hp->h_name, dirpath); 4341558Srgrimes del_mlist(inet_ntoa(transp->xp_raddr.sin_addr), dirpath); 4351558Srgrimes return; 4361558Srgrimes case RPCMNT_UMNTALL: 4371558Srgrimes if ((uid != 0 && root_only) || uid == -2) { 4381558Srgrimes svcerr_weakauth(transp); 4391558Srgrimes return; 4401558Srgrimes } 4411558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 4421558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4431558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET); 4441558Srgrimes if (hp) 4451558Srgrimes del_mlist(hp->h_name, (char *)NULL); 4461558Srgrimes del_mlist(inet_ntoa(transp->xp_raddr.sin_addr), (char *)NULL); 4471558Srgrimes return; 4481558Srgrimes case RPCMNT_EXPORT: 4491558Srgrimes if (!svc_sendreply(transp, xdr_explist, (caddr_t)NULL)) 4501558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4511558Srgrimes return; 4521558Srgrimes default: 4531558Srgrimes svcerr_noproc(transp); 4541558Srgrimes return; 4551558Srgrimes } 4561558Srgrimes} 4571558Srgrimes 4581558Srgrimes/* 4591558Srgrimes * Xdr conversion for a dirpath string 4601558Srgrimes */ 4611558Srgrimesint 4621558Srgrimesxdr_dir(xdrsp, dirp) 4631558Srgrimes XDR *xdrsp; 4641558Srgrimes char *dirp; 4651558Srgrimes{ 4661558Srgrimes return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN)); 4671558Srgrimes} 4681558Srgrimes 4691558Srgrimes/* 4701558Srgrimes * Xdr routine to generate fhstatus 4711558Srgrimes */ 4721558Srgrimesint 4731558Srgrimesxdr_fhs(xdrsp, nfh) 4741558Srgrimes XDR *xdrsp; 4751558Srgrimes nfsv2fh_t *nfh; 4761558Srgrimes{ 4777401Swpaul u_long ok = 0; 4781558Srgrimes 4791558Srgrimes if (!xdr_long(xdrsp, &ok)) 4801558Srgrimes return (0); 4811558Srgrimes return (xdr_opaque(xdrsp, (caddr_t)nfh, NFSX_FH)); 4821558Srgrimes} 4831558Srgrimes 4841558Srgrimesint 4851558Srgrimesxdr_mlist(xdrsp, cp) 4861558Srgrimes XDR *xdrsp; 4871558Srgrimes caddr_t cp; 4881558Srgrimes{ 4891558Srgrimes struct mountlist *mlp; 4901558Srgrimes int true = 1; 4911558Srgrimes int false = 0; 4921558Srgrimes char *strp; 4931558Srgrimes 4941558Srgrimes mlp = mlhead; 4951558Srgrimes while (mlp) { 4961558Srgrimes if (!xdr_bool(xdrsp, &true)) 4971558Srgrimes return (0); 4981558Srgrimes strp = &mlp->ml_host[0]; 4991558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN)) 5001558Srgrimes return (0); 5011558Srgrimes strp = &mlp->ml_dirp[0]; 5021558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 5031558Srgrimes return (0); 5041558Srgrimes mlp = mlp->ml_next; 5051558Srgrimes } 5061558Srgrimes if (!xdr_bool(xdrsp, &false)) 5071558Srgrimes return (0); 5081558Srgrimes return (1); 5091558Srgrimes} 5101558Srgrimes 5111558Srgrimes/* 5121558Srgrimes * Xdr conversion for export list 5131558Srgrimes */ 5141558Srgrimesint 5151558Srgrimesxdr_explist(xdrsp, cp) 5161558Srgrimes XDR *xdrsp; 5171558Srgrimes caddr_t cp; 5181558Srgrimes{ 5191558Srgrimes struct exportlist *ep; 5201558Srgrimes int false = 0; 5211558Srgrimes int omask, putdef; 5221558Srgrimes 5231558Srgrimes omask = sigblock(sigmask(SIGHUP)); 5241558Srgrimes ep = exphead; 5251558Srgrimes while (ep) { 5261558Srgrimes putdef = 0; 5271558Srgrimes if (put_exlist(ep->ex_dirl, xdrsp, ep->ex_defdir, &putdef)) 5281558Srgrimes goto errout; 5291558Srgrimes if (ep->ex_defdir && putdef == 0 && 5301558Srgrimes put_exlist(ep->ex_defdir, xdrsp, (struct dirlist *)NULL, 5311558Srgrimes &putdef)) 5321558Srgrimes goto errout; 5331558Srgrimes ep = ep->ex_next; 5341558Srgrimes } 5351558Srgrimes sigsetmask(omask); 5361558Srgrimes if (!xdr_bool(xdrsp, &false)) 5371558Srgrimes return (0); 5381558Srgrimes return (1); 5391558Srgrimeserrout: 5401558Srgrimes sigsetmask(omask); 5411558Srgrimes return (0); 5421558Srgrimes} 5431558Srgrimes 5441558Srgrimes/* 5451558Srgrimes * Called from xdr_explist() to traverse the tree and export the 5461558Srgrimes * directory paths. 5471558Srgrimes */ 5481558Srgrimesint 5491558Srgrimesput_exlist(dp, xdrsp, adp, putdefp) 5501558Srgrimes struct dirlist *dp; 5511558Srgrimes XDR *xdrsp; 5521558Srgrimes struct dirlist *adp; 5531558Srgrimes int *putdefp; 5541558Srgrimes{ 5551558Srgrimes struct grouplist *grp; 5561558Srgrimes struct hostlist *hp; 5571558Srgrimes int true = 1; 5581558Srgrimes int false = 0; 5591558Srgrimes int gotalldir = 0; 5601558Srgrimes char *strp; 5611558Srgrimes 5621558Srgrimes if (dp) { 5631558Srgrimes if (put_exlist(dp->dp_left, xdrsp, adp, putdefp)) 5641558Srgrimes return (1); 5651558Srgrimes if (!xdr_bool(xdrsp, &true)) 5661558Srgrimes return (1); 5671558Srgrimes strp = dp->dp_dirp; 5681558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 5691558Srgrimes return (1); 5701558Srgrimes if (adp && !strcmp(dp->dp_dirp, adp->dp_dirp)) { 5711558Srgrimes gotalldir = 1; 5721558Srgrimes *putdefp = 1; 5731558Srgrimes } 5741558Srgrimes if ((dp->dp_flag & DP_DEFSET) == 0 && 5751558Srgrimes (gotalldir == 0 || (adp->dp_flag & DP_DEFSET) == 0)) { 5761558Srgrimes hp = dp->dp_hosts; 5771558Srgrimes while (hp) { 5781558Srgrimes grp = hp->ht_grp; 5791558Srgrimes if (grp->gr_type == GT_HOST) { 5801558Srgrimes if (!xdr_bool(xdrsp, &true)) 5811558Srgrimes return (1); 5821558Srgrimes strp = grp->gr_ptr.gt_hostent->h_name; 5838871Srgrimes if (!xdr_string(xdrsp, &strp, 5841558Srgrimes RPCMNT_NAMELEN)) 5851558Srgrimes return (1); 5861558Srgrimes } else if (grp->gr_type == GT_NET) { 5871558Srgrimes if (!xdr_bool(xdrsp, &true)) 5881558Srgrimes return (1); 5891558Srgrimes strp = grp->gr_ptr.gt_net.nt_name; 5908871Srgrimes if (!xdr_string(xdrsp, &strp, 5911558Srgrimes RPCMNT_NAMELEN)) 5921558Srgrimes return (1); 5931558Srgrimes } 5941558Srgrimes hp = hp->ht_next; 5951558Srgrimes if (gotalldir && hp == (struct hostlist *)NULL) { 5961558Srgrimes hp = adp->dp_hosts; 5971558Srgrimes gotalldir = 0; 5981558Srgrimes } 5991558Srgrimes } 6001558Srgrimes } 6011558Srgrimes if (!xdr_bool(xdrsp, &false)) 6021558Srgrimes return (1); 6031558Srgrimes if (put_exlist(dp->dp_right, xdrsp, adp, putdefp)) 6041558Srgrimes return (1); 6051558Srgrimes } 6061558Srgrimes return (0); 6071558Srgrimes} 6081558Srgrimes 6091558Srgrimes#define LINESIZ 10240 6101558Srgrimeschar line[LINESIZ]; 6111558SrgrimesFILE *exp_file; 6121558Srgrimes 6131558Srgrimes/* 6141558Srgrimes * Get the export list 6151558Srgrimes */ 6161558Srgrimesvoid 6171558Srgrimesget_exportlist() 6181558Srgrimes{ 6191558Srgrimes struct exportlist *ep, *ep2; 6201558Srgrimes struct grouplist *grp, *tgrp; 6211558Srgrimes struct exportlist **epp; 6221558Srgrimes struct dirlist *dirhead; 6231558Srgrimes struct statfs fsb, *fsp; 6241558Srgrimes struct hostent *hpe; 6251558Srgrimes struct ucred anon; 6261558Srgrimes char *cp, *endcp, *dirp, *hst, *usr, *dom, savedc; 6271558Srgrimes int len, has_host, exflags, got_nondir, dirplen, num, i, netgrp; 6281558Srgrimes 6291558Srgrimes /* 6301558Srgrimes * First, get rid of the old list 6311558Srgrimes */ 6321558Srgrimes ep = exphead; 6331558Srgrimes while (ep) { 6341558Srgrimes ep2 = ep; 6351558Srgrimes ep = ep->ex_next; 6361558Srgrimes free_exp(ep2); 6371558Srgrimes } 6381558Srgrimes exphead = (struct exportlist *)NULL; 6391558Srgrimes 6401558Srgrimes grp = grphead; 6411558Srgrimes while (grp) { 6421558Srgrimes tgrp = grp; 6431558Srgrimes grp = grp->gr_next; 6441558Srgrimes free_grp(tgrp); 6451558Srgrimes } 6461558Srgrimes grphead = (struct grouplist *)NULL; 6471558Srgrimes 6481558Srgrimes /* 6491558Srgrimes * And delete exports that are in the kernel for all local 6501558Srgrimes * file systems. 6511558Srgrimes * XXX: Should know how to handle all local exportable file systems 6521558Srgrimes * instead of just MOUNT_UFS. 6531558Srgrimes */ 6541558Srgrimes num = getmntinfo(&fsp, MNT_NOWAIT); 6551558Srgrimes for (i = 0; i < num; i++) { 6561558Srgrimes union { 6571558Srgrimes struct ufs_args ua; 6581558Srgrimes struct iso_args ia; 6591558Srgrimes struct mfs_args ma; 6601558Srgrimes } targs; 6611558Srgrimes 6621558Srgrimes switch (fsp->f_type) { 6631558Srgrimes case MOUNT_MFS: 6641558Srgrimes case MOUNT_UFS: 6651558Srgrimes case MOUNT_CD9660: 6662898Sdfr case MOUNT_MSDOS: 6671558Srgrimes targs.ua.fspec = NULL; 6681558Srgrimes targs.ua.export.ex_flags = MNT_DELEXPORT; 6691558Srgrimes if (mount(fsp->f_type, fsp->f_mntonname, 6701558Srgrimes fsp->f_flags | MNT_UPDATE, 6711558Srgrimes (caddr_t)&targs) < 0) 6721558Srgrimes syslog(LOG_ERR, "Can't delete exports for %s", 6731558Srgrimes fsp->f_mntonname); 6741558Srgrimes } 6751558Srgrimes fsp++; 6761558Srgrimes } 6771558Srgrimes 6781558Srgrimes /* 6791558Srgrimes * Read in the exports file and build the list, calling 6801558Srgrimes * mount() as we go along to push the export rules into the kernel. 6811558Srgrimes */ 6821558Srgrimes if ((exp_file = fopen(exname, "r")) == NULL) { 6831558Srgrimes syslog(LOG_ERR, "Can't open %s", exname); 6841558Srgrimes exit(2); 6851558Srgrimes } 6861558Srgrimes dirhead = (struct dirlist *)NULL; 6871558Srgrimes while (get_line()) { 6881558Srgrimes if (debug) 6891558Srgrimes fprintf(stderr,"Got line %s\n",line); 6901558Srgrimes cp = line; 6911558Srgrimes nextfield(&cp, &endcp); 6921558Srgrimes if (*cp == '#') 6931558Srgrimes goto nextline; 6941558Srgrimes 6951558Srgrimes /* 6961558Srgrimes * Set defaults. 6971558Srgrimes */ 6981558Srgrimes has_host = FALSE; 6991558Srgrimes anon = def_anon; 7001558Srgrimes exflags = MNT_EXPORTED; 7011558Srgrimes got_nondir = 0; 7021558Srgrimes opt_flags = 0; 7031558Srgrimes ep = (struct exportlist *)NULL; 7041558Srgrimes 7051558Srgrimes /* 7061558Srgrimes * Create new exports list entry 7071558Srgrimes */ 7081558Srgrimes len = endcp-cp; 7091558Srgrimes tgrp = grp = get_grp(); 7101558Srgrimes while (len > 0) { 7111558Srgrimes if (len > RPCMNT_NAMELEN) { 7121558Srgrimes getexp_err(ep, tgrp); 7131558Srgrimes goto nextline; 7141558Srgrimes } 7151558Srgrimes if (*cp == '-') { 7161558Srgrimes if (ep == (struct exportlist *)NULL) { 7171558Srgrimes getexp_err(ep, tgrp); 7181558Srgrimes goto nextline; 7191558Srgrimes } 7201558Srgrimes if (debug) 7211558Srgrimes fprintf(stderr, "doing opt %s\n", cp); 7221558Srgrimes got_nondir = 1; 7231558Srgrimes if (do_opt(&cp, &endcp, ep, grp, &has_host, 7241558Srgrimes &exflags, &anon)) { 7251558Srgrimes getexp_err(ep, tgrp); 7261558Srgrimes goto nextline; 7271558Srgrimes } 7281558Srgrimes } else if (*cp == '/') { 7291558Srgrimes savedc = *endcp; 7301558Srgrimes *endcp = '\0'; 7311558Srgrimes if (check_dirpath(cp) && 7321558Srgrimes statfs(cp, &fsb) >= 0) { 7331558Srgrimes if (got_nondir) { 7341558Srgrimes syslog(LOG_ERR, "Dirs must be first"); 7351558Srgrimes getexp_err(ep, tgrp); 7361558Srgrimes goto nextline; 7371558Srgrimes } 7381558Srgrimes if (ep) { 7391558Srgrimes if (ep->ex_fs.val[0] != fsb.f_fsid.val[0] || 7401558Srgrimes ep->ex_fs.val[1] != fsb.f_fsid.val[1]) { 7411558Srgrimes getexp_err(ep, tgrp); 7421558Srgrimes goto nextline; 7431558Srgrimes } 7441558Srgrimes } else { 7451558Srgrimes /* 7461558Srgrimes * See if this directory is already 7471558Srgrimes * in the list. 7481558Srgrimes */ 7491558Srgrimes ep = ex_search(&fsb.f_fsid); 7501558Srgrimes if (ep == (struct exportlist *)NULL) { 7511558Srgrimes ep = get_exp(); 7521558Srgrimes ep->ex_fs = fsb.f_fsid; 7531558Srgrimes ep->ex_fsdir = (char *) 7541558Srgrimes malloc(strlen(fsb.f_mntonname) + 1); 7551558Srgrimes if (ep->ex_fsdir) 7561558Srgrimes strcpy(ep->ex_fsdir, 7571558Srgrimes fsb.f_mntonname); 7581558Srgrimes else 7591558Srgrimes out_of_mem(); 7601558Srgrimes if (debug) 7611558Srgrimes fprintf(stderr, 7621558Srgrimes "Making new ep fs=0x%x,0x%x\n", 7631558Srgrimes fsb.f_fsid.val[0], 7641558Srgrimes fsb.f_fsid.val[1]); 7651558Srgrimes } else if (debug) 7661558Srgrimes fprintf(stderr, 7671558Srgrimes "Found ep fs=0x%x,0x%x\n", 7681558Srgrimes fsb.f_fsid.val[0], 7691558Srgrimes fsb.f_fsid.val[1]); 7701558Srgrimes } 7711558Srgrimes 7721558Srgrimes /* 7731558Srgrimes * Add dirpath to export mount point. 7741558Srgrimes */ 7751558Srgrimes dirp = add_expdir(&dirhead, cp, len); 7761558Srgrimes dirplen = len; 7771558Srgrimes } else { 7781558Srgrimes getexp_err(ep, tgrp); 7791558Srgrimes goto nextline; 7801558Srgrimes } 7811558Srgrimes *endcp = savedc; 7821558Srgrimes } else { 7831558Srgrimes savedc = *endcp; 7841558Srgrimes *endcp = '\0'; 7851558Srgrimes got_nondir = 1; 7861558Srgrimes if (ep == (struct exportlist *)NULL) { 7871558Srgrimes getexp_err(ep, tgrp); 7881558Srgrimes goto nextline; 7891558Srgrimes } 7901558Srgrimes 7911558Srgrimes /* 7921558Srgrimes * Get the host or netgroup. 7931558Srgrimes */ 7941558Srgrimes setnetgrent(cp); 7951558Srgrimes netgrp = getnetgrent(&hst, &usr, &dom); 7961558Srgrimes do { 7971558Srgrimes if (has_host) { 7981558Srgrimes grp->gr_next = get_grp(); 7991558Srgrimes grp = grp->gr_next; 8001558Srgrimes } 8011558Srgrimes if (netgrp) { 8027401Swpaul if (get_host(hst, grp, tgrp)) { 8031558Srgrimes syslog(LOG_ERR, "Bad netgroup %s", cp); 8041558Srgrimes getexp_err(ep, tgrp); 8051558Srgrimes goto nextline; 8061558Srgrimes } 8077401Swpaul } else if (get_host(cp, grp, tgrp)) { 8081558Srgrimes getexp_err(ep, tgrp); 8091558Srgrimes goto nextline; 8101558Srgrimes } 8111558Srgrimes has_host = TRUE; 8121558Srgrimes } while (netgrp && getnetgrent(&hst, &usr, &dom)); 8131558Srgrimes endnetgrent(); 8141558Srgrimes *endcp = savedc; 8151558Srgrimes } 8161558Srgrimes cp = endcp; 8171558Srgrimes nextfield(&cp, &endcp); 8181558Srgrimes len = endcp - cp; 8191558Srgrimes } 8201558Srgrimes if (check_options(dirhead)) { 8211558Srgrimes getexp_err(ep, tgrp); 8221558Srgrimes goto nextline; 8231558Srgrimes } 8241558Srgrimes if (!has_host) { 8251558Srgrimes grp->gr_type = GT_HOST; 8261558Srgrimes if (debug) 8271558Srgrimes fprintf(stderr,"Adding a default entry\n"); 8281558Srgrimes /* add a default group and make the grp list NULL */ 8291558Srgrimes hpe = (struct hostent *)malloc(sizeof(struct hostent)); 8301558Srgrimes if (hpe == (struct hostent *)NULL) 8311558Srgrimes out_of_mem(); 8321558Srgrimes hpe->h_name = "Default"; 8331558Srgrimes hpe->h_addrtype = AF_INET; 8341558Srgrimes hpe->h_length = sizeof (u_long); 8351558Srgrimes hpe->h_addr_list = (char **)NULL; 8361558Srgrimes grp->gr_ptr.gt_hostent = hpe; 8371558Srgrimes 8381558Srgrimes /* 8391558Srgrimes * Don't allow a network export coincide with a list of 8401558Srgrimes * host(s) on the same line. 8411558Srgrimes */ 8421558Srgrimes } else if ((opt_flags & OP_NET) && tgrp->gr_next) { 8431558Srgrimes getexp_err(ep, tgrp); 8441558Srgrimes goto nextline; 8451558Srgrimes } 8461558Srgrimes 8471558Srgrimes /* 8481558Srgrimes * Loop through hosts, pushing the exports into the kernel. 8491558Srgrimes * After loop, tgrp points to the start of the list and 8501558Srgrimes * grp points to the last entry in the list. 8511558Srgrimes */ 8521558Srgrimes grp = tgrp; 8531558Srgrimes do { 8541558Srgrimes if (do_mount(ep, grp, exflags, &anon, dirp, 8551558Srgrimes dirplen, &fsb)) { 8561558Srgrimes getexp_err(ep, tgrp); 8571558Srgrimes goto nextline; 8581558Srgrimes } 8591558Srgrimes } while (grp->gr_next && (grp = grp->gr_next)); 8601558Srgrimes 8611558Srgrimes /* 8621558Srgrimes * Success. Update the data structures. 8631558Srgrimes */ 8641558Srgrimes if (has_host) { 8651558Srgrimes hang_dirp(dirhead, tgrp, ep, (opt_flags & OP_ALLDIRS)); 8661558Srgrimes grp->gr_next = grphead; 8671558Srgrimes grphead = tgrp; 8681558Srgrimes } else { 8691558Srgrimes hang_dirp(dirhead, (struct grouplist *)NULL, ep, 8701558Srgrimes (opt_flags & OP_ALLDIRS)); 8711558Srgrimes free_grp(grp); 8721558Srgrimes } 8731558Srgrimes dirhead = (struct dirlist *)NULL; 8741558Srgrimes if ((ep->ex_flag & EX_LINKED) == 0) { 8751558Srgrimes ep2 = exphead; 8761558Srgrimes epp = &exphead; 8771558Srgrimes 8781558Srgrimes /* 8791558Srgrimes * Insert in the list in alphabetical order. 8801558Srgrimes */ 8811558Srgrimes while (ep2 && strcmp(ep2->ex_fsdir, ep->ex_fsdir) < 0) { 8821558Srgrimes epp = &ep2->ex_next; 8831558Srgrimes ep2 = ep2->ex_next; 8841558Srgrimes } 8851558Srgrimes if (ep2) 8861558Srgrimes ep->ex_next = ep2; 8871558Srgrimes *epp = ep; 8881558Srgrimes ep->ex_flag |= EX_LINKED; 8891558Srgrimes } 8901558Srgrimesnextline: 8911558Srgrimes if (dirhead) { 8921558Srgrimes free_dir(dirhead); 8931558Srgrimes dirhead = (struct dirlist *)NULL; 8941558Srgrimes } 8951558Srgrimes } 8961558Srgrimes fclose(exp_file); 8971558Srgrimes} 8981558Srgrimes 8991558Srgrimes/* 9001558Srgrimes * Allocate an export list element 9011558Srgrimes */ 9021558Srgrimesstruct exportlist * 9031558Srgrimesget_exp() 9041558Srgrimes{ 9051558Srgrimes struct exportlist *ep; 9061558Srgrimes 9071558Srgrimes ep = (struct exportlist *)malloc(sizeof (struct exportlist)); 9081558Srgrimes if (ep == (struct exportlist *)NULL) 9091558Srgrimes out_of_mem(); 9101558Srgrimes bzero((caddr_t)ep, sizeof (struct exportlist)); 9111558Srgrimes return (ep); 9121558Srgrimes} 9131558Srgrimes 9141558Srgrimes/* 9151558Srgrimes * Allocate a group list element 9161558Srgrimes */ 9171558Srgrimesstruct grouplist * 9181558Srgrimesget_grp() 9191558Srgrimes{ 9201558Srgrimes struct grouplist *gp; 9211558Srgrimes 9221558Srgrimes gp = (struct grouplist *)malloc(sizeof (struct grouplist)); 9231558Srgrimes if (gp == (struct grouplist *)NULL) 9241558Srgrimes out_of_mem(); 9251558Srgrimes bzero((caddr_t)gp, sizeof (struct grouplist)); 9261558Srgrimes return (gp); 9271558Srgrimes} 9281558Srgrimes 9291558Srgrimes/* 9301558Srgrimes * Clean up upon an error in get_exportlist(). 9311558Srgrimes */ 9321558Srgrimesvoid 9331558Srgrimesgetexp_err(ep, grp) 9341558Srgrimes struct exportlist *ep; 9351558Srgrimes struct grouplist *grp; 9361558Srgrimes{ 9371558Srgrimes struct grouplist *tgrp; 9381558Srgrimes 9391558Srgrimes syslog(LOG_ERR, "Bad exports list line %s", line); 9401558Srgrimes if (ep && (ep->ex_flag & EX_LINKED) == 0) 9411558Srgrimes free_exp(ep); 9421558Srgrimes while (grp) { 9431558Srgrimes tgrp = grp; 9441558Srgrimes grp = grp->gr_next; 9451558Srgrimes free_grp(tgrp); 9461558Srgrimes } 9471558Srgrimes} 9481558Srgrimes 9491558Srgrimes/* 9501558Srgrimes * Search the export list for a matching fs. 9511558Srgrimes */ 9521558Srgrimesstruct exportlist * 9531558Srgrimesex_search(fsid) 9541558Srgrimes fsid_t *fsid; 9551558Srgrimes{ 9561558Srgrimes struct exportlist *ep; 9571558Srgrimes 9581558Srgrimes ep = exphead; 9591558Srgrimes while (ep) { 9601558Srgrimes if (ep->ex_fs.val[0] == fsid->val[0] && 9611558Srgrimes ep->ex_fs.val[1] == fsid->val[1]) 9621558Srgrimes return (ep); 9631558Srgrimes ep = ep->ex_next; 9641558Srgrimes } 9651558Srgrimes return (ep); 9661558Srgrimes} 9671558Srgrimes 9681558Srgrimes/* 9691558Srgrimes * Add a directory path to the list. 9701558Srgrimes */ 9711558Srgrimeschar * 9721558Srgrimesadd_expdir(dpp, cp, len) 9731558Srgrimes struct dirlist **dpp; 9741558Srgrimes char *cp; 9751558Srgrimes int len; 9761558Srgrimes{ 9771558Srgrimes struct dirlist *dp; 9781558Srgrimes 9791558Srgrimes dp = (struct dirlist *)malloc(sizeof (struct dirlist) + len); 9801558Srgrimes dp->dp_left = *dpp; 9811558Srgrimes dp->dp_right = (struct dirlist *)NULL; 9821558Srgrimes dp->dp_flag = 0; 9831558Srgrimes dp->dp_hosts = (struct hostlist *)NULL; 9841558Srgrimes strcpy(dp->dp_dirp, cp); 9851558Srgrimes *dpp = dp; 9861558Srgrimes return (dp->dp_dirp); 9871558Srgrimes} 9881558Srgrimes 9891558Srgrimes/* 9901558Srgrimes * Hang the dir list element off the dirpath binary tree as required 9911558Srgrimes * and update the entry for host. 9921558Srgrimes */ 9931558Srgrimesvoid 9941558Srgrimeshang_dirp(dp, grp, ep, alldirs) 9951558Srgrimes struct dirlist *dp; 9961558Srgrimes struct grouplist *grp; 9971558Srgrimes struct exportlist *ep; 9981558Srgrimes int alldirs; 9991558Srgrimes{ 10001558Srgrimes struct hostlist *hp; 10011558Srgrimes struct dirlist *dp2; 10021558Srgrimes 10031558Srgrimes if (alldirs) { 10041558Srgrimes if (ep->ex_defdir) 10051558Srgrimes free((caddr_t)dp); 10061558Srgrimes else 10071558Srgrimes ep->ex_defdir = dp; 10081558Srgrimes if (grp == (struct grouplist *)NULL) 10091558Srgrimes ep->ex_defdir->dp_flag |= DP_DEFSET; 10101558Srgrimes else while (grp) { 10111558Srgrimes hp = get_ht(); 10121558Srgrimes hp->ht_grp = grp; 10131558Srgrimes hp->ht_next = ep->ex_defdir->dp_hosts; 10141558Srgrimes ep->ex_defdir->dp_hosts = hp; 10151558Srgrimes grp = grp->gr_next; 10161558Srgrimes } 10171558Srgrimes } else { 10181558Srgrimes 10191558Srgrimes /* 10201558Srgrimes * Loop throught the directories adding them to the tree. 10211558Srgrimes */ 10221558Srgrimes while (dp) { 10231558Srgrimes dp2 = dp->dp_left; 10241558Srgrimes add_dlist(&ep->ex_dirl, dp, grp); 10251558Srgrimes dp = dp2; 10261558Srgrimes } 10271558Srgrimes } 10281558Srgrimes} 10291558Srgrimes 10301558Srgrimes/* 10311558Srgrimes * Traverse the binary tree either updating a node that is already there 10321558Srgrimes * for the new directory or adding the new node. 10331558Srgrimes */ 10341558Srgrimesvoid 10351558Srgrimesadd_dlist(dpp, newdp, grp) 10361558Srgrimes struct dirlist **dpp; 10371558Srgrimes struct dirlist *newdp; 10381558Srgrimes struct grouplist *grp; 10391558Srgrimes{ 10401558Srgrimes struct dirlist *dp; 10411558Srgrimes struct hostlist *hp; 10421558Srgrimes int cmp; 10431558Srgrimes 10441558Srgrimes dp = *dpp; 10451558Srgrimes if (dp) { 10461558Srgrimes cmp = strcmp(dp->dp_dirp, newdp->dp_dirp); 10471558Srgrimes if (cmp > 0) { 10481558Srgrimes add_dlist(&dp->dp_left, newdp, grp); 10491558Srgrimes return; 10501558Srgrimes } else if (cmp < 0) { 10511558Srgrimes add_dlist(&dp->dp_right, newdp, grp); 10521558Srgrimes return; 10531558Srgrimes } else 10541558Srgrimes free((caddr_t)newdp); 10551558Srgrimes } else { 10561558Srgrimes dp = newdp; 10571558Srgrimes dp->dp_left = (struct dirlist *)NULL; 10581558Srgrimes *dpp = dp; 10591558Srgrimes } 10601558Srgrimes if (grp) { 10611558Srgrimes 10621558Srgrimes /* 10631558Srgrimes * Hang all of the host(s) off of the directory point. 10641558Srgrimes */ 10651558Srgrimes do { 10661558Srgrimes hp = get_ht(); 10671558Srgrimes hp->ht_grp = grp; 10681558Srgrimes hp->ht_next = dp->dp_hosts; 10691558Srgrimes dp->dp_hosts = hp; 10701558Srgrimes grp = grp->gr_next; 10711558Srgrimes } while (grp); 10721558Srgrimes } else 10731558Srgrimes dp->dp_flag |= DP_DEFSET; 10741558Srgrimes} 10751558Srgrimes 10761558Srgrimes/* 10771558Srgrimes * Search for a dirpath on the export point. 10781558Srgrimes */ 10791558Srgrimesstruct dirlist * 10801558Srgrimesdirp_search(dp, dirpath) 10811558Srgrimes struct dirlist *dp; 10821558Srgrimes char *dirpath; 10831558Srgrimes{ 10841558Srgrimes int cmp; 10851558Srgrimes 10861558Srgrimes if (dp) { 10871558Srgrimes cmp = strcmp(dp->dp_dirp, dirpath); 10881558Srgrimes if (cmp > 0) 10891558Srgrimes return (dirp_search(dp->dp_left, dirpath)); 10901558Srgrimes else if (cmp < 0) 10911558Srgrimes return (dirp_search(dp->dp_right, dirpath)); 10921558Srgrimes else 10931558Srgrimes return (dp); 10941558Srgrimes } 10951558Srgrimes return (dp); 10961558Srgrimes} 10971558Srgrimes 10981558Srgrimes/* 10991558Srgrimes * Scan for a host match in a directory tree. 11001558Srgrimes */ 11011558Srgrimesint 11021558Srgrimeschk_host(dp, saddr, defsetp) 11031558Srgrimes struct dirlist *dp; 11041558Srgrimes u_long saddr; 11051558Srgrimes int *defsetp; 11061558Srgrimes{ 11071558Srgrimes struct hostlist *hp; 11081558Srgrimes struct grouplist *grp; 11091558Srgrimes u_long **addrp; 11101558Srgrimes 11111558Srgrimes if (dp) { 11121558Srgrimes if (dp->dp_flag & DP_DEFSET) 11131558Srgrimes *defsetp = 1; 11141558Srgrimes hp = dp->dp_hosts; 11151558Srgrimes while (hp) { 11161558Srgrimes grp = hp->ht_grp; 11171558Srgrimes switch (grp->gr_type) { 11181558Srgrimes case GT_HOST: 11191558Srgrimes addrp = (u_long **) 11201558Srgrimes grp->gr_ptr.gt_hostent->h_addr_list; 11211558Srgrimes while (*addrp) { 11221558Srgrimes if (**addrp == saddr) 11231558Srgrimes return (1); 11241558Srgrimes addrp++; 11251558Srgrimes } 11261558Srgrimes break; 11271558Srgrimes case GT_NET: 11281558Srgrimes if ((saddr & grp->gr_ptr.gt_net.nt_mask) == 11291558Srgrimes grp->gr_ptr.gt_net.nt_net) 11301558Srgrimes return (1); 11311558Srgrimes break; 11321558Srgrimes }; 11331558Srgrimes hp = hp->ht_next; 11341558Srgrimes } 11351558Srgrimes } 11361558Srgrimes return (0); 11371558Srgrimes} 11381558Srgrimes 11391558Srgrimes/* 11401558Srgrimes * Scan tree for a host that matches the address. 11411558Srgrimes */ 11421558Srgrimesint 11431558Srgrimesscan_tree(dp, saddr) 11441558Srgrimes struct dirlist *dp; 11451558Srgrimes u_long saddr; 11461558Srgrimes{ 11471558Srgrimes int defset; 11481558Srgrimes 11491558Srgrimes if (dp) { 11501558Srgrimes if (scan_tree(dp->dp_left, saddr)) 11511558Srgrimes return (1); 11521558Srgrimes if (chk_host(dp, saddr, &defset)) 11531558Srgrimes return (1); 11541558Srgrimes if (scan_tree(dp->dp_right, saddr)) 11551558Srgrimes return (1); 11561558Srgrimes } 11571558Srgrimes return (0); 11581558Srgrimes} 11591558Srgrimes 11601558Srgrimes/* 11611558Srgrimes * Traverse the dirlist tree and free it up. 11621558Srgrimes */ 11631558Srgrimesvoid 11641558Srgrimesfree_dir(dp) 11651558Srgrimes struct dirlist *dp; 11661558Srgrimes{ 11671558Srgrimes 11681558Srgrimes if (dp) { 11691558Srgrimes free_dir(dp->dp_left); 11701558Srgrimes free_dir(dp->dp_right); 11711558Srgrimes free_host(dp->dp_hosts); 11721558Srgrimes free((caddr_t)dp); 11731558Srgrimes } 11741558Srgrimes} 11751558Srgrimes 11761558Srgrimes/* 11771558Srgrimes * Parse the option string and update fields. 11781558Srgrimes * Option arguments may either be -<option>=<value> or 11791558Srgrimes * -<option> <value> 11801558Srgrimes */ 11811558Srgrimesint 11821558Srgrimesdo_opt(cpp, endcpp, ep, grp, has_hostp, exflagsp, cr) 11831558Srgrimes char **cpp, **endcpp; 11841558Srgrimes struct exportlist *ep; 11851558Srgrimes struct grouplist *grp; 11861558Srgrimes int *has_hostp; 11871558Srgrimes int *exflagsp; 11881558Srgrimes struct ucred *cr; 11891558Srgrimes{ 11901558Srgrimes char *cpoptarg, *cpoptend; 11911558Srgrimes char *cp, *endcp, *cpopt, savedc, savedc2; 11921558Srgrimes int allflag, usedarg; 11931558Srgrimes 11941558Srgrimes cpopt = *cpp; 11951558Srgrimes cpopt++; 11961558Srgrimes cp = *endcpp; 11971558Srgrimes savedc = *cp; 11981558Srgrimes *cp = '\0'; 11991558Srgrimes while (cpopt && *cpopt) { 12001558Srgrimes allflag = 1; 12011558Srgrimes usedarg = -2; 12021558Srgrimes if (cpoptend = index(cpopt, ',')) { 12031558Srgrimes *cpoptend++ = '\0'; 12041558Srgrimes if (cpoptarg = index(cpopt, '=')) 12051558Srgrimes *cpoptarg++ = '\0'; 12061558Srgrimes } else { 12071558Srgrimes if (cpoptarg = index(cpopt, '=')) 12081558Srgrimes *cpoptarg++ = '\0'; 12091558Srgrimes else { 12101558Srgrimes *cp = savedc; 12111558Srgrimes nextfield(&cp, &endcp); 12121558Srgrimes **endcpp = '\0'; 12131558Srgrimes if (endcp > cp && *cp != '-') { 12141558Srgrimes cpoptarg = cp; 12151558Srgrimes savedc2 = *endcp; 12161558Srgrimes *endcp = '\0'; 12171558Srgrimes usedarg = 0; 12181558Srgrimes } 12191558Srgrimes } 12201558Srgrimes } 12211558Srgrimes if (!strcmp(cpopt, "ro") || !strcmp(cpopt, "o")) { 12221558Srgrimes *exflagsp |= MNT_EXRDONLY; 12231558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "maproot") || 12241558Srgrimes !(allflag = strcmp(cpopt, "mapall")) || 12251558Srgrimes !strcmp(cpopt, "root") || !strcmp(cpopt, "r"))) { 12261558Srgrimes usedarg++; 12271558Srgrimes parsecred(cpoptarg, cr); 12281558Srgrimes if (allflag == 0) { 12291558Srgrimes *exflagsp |= MNT_EXPORTANON; 12301558Srgrimes opt_flags |= OP_MAPALL; 12311558Srgrimes } else 12321558Srgrimes opt_flags |= OP_MAPROOT; 12331558Srgrimes } else if (!strcmp(cpopt, "kerb") || !strcmp(cpopt, "k")) { 12341558Srgrimes *exflagsp |= MNT_EXKERB; 12351558Srgrimes opt_flags |= OP_KERB; 12361558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "mask") || 12371558Srgrimes !strcmp(cpopt, "m"))) { 12381558Srgrimes if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 1)) { 12391558Srgrimes syslog(LOG_ERR, "Bad mask: %s", cpoptarg); 12401558Srgrimes return (1); 12411558Srgrimes } 12421558Srgrimes usedarg++; 12431558Srgrimes opt_flags |= OP_MASK; 12441558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "network") || 12451558Srgrimes !strcmp(cpopt, "n"))) { 12461558Srgrimes if (grp->gr_type != GT_NULL) { 12471558Srgrimes syslog(LOG_ERR, "Network/host conflict"); 12481558Srgrimes return (1); 12491558Srgrimes } else if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 0)) { 12501558Srgrimes syslog(LOG_ERR, "Bad net: %s", cpoptarg); 12511558Srgrimes return (1); 12521558Srgrimes } 12531558Srgrimes grp->gr_type = GT_NET; 12541558Srgrimes *has_hostp = 1; 12551558Srgrimes usedarg++; 12561558Srgrimes opt_flags |= OP_NET; 12571558Srgrimes } else if (!strcmp(cpopt, "alldirs")) { 12581558Srgrimes opt_flags |= OP_ALLDIRS; 12591558Srgrimes#ifdef ISO 12601558Srgrimes } else if (cpoptarg && !strcmp(cpopt, "iso")) { 12611558Srgrimes if (get_isoaddr(cpoptarg, grp)) { 12621558Srgrimes syslog(LOG_ERR, "Bad iso addr: %s", cpoptarg); 12631558Srgrimes return (1); 12641558Srgrimes } 12651558Srgrimes *has_hostp = 1; 12661558Srgrimes usedarg++; 12671558Srgrimes opt_flags |= OP_ISO; 12681558Srgrimes#endif /* ISO */ 12691558Srgrimes } else { 12701558Srgrimes syslog(LOG_ERR, "Bad opt %s", cpopt); 12711558Srgrimes return (1); 12721558Srgrimes } 12731558Srgrimes if (usedarg >= 0) { 12741558Srgrimes *endcp = savedc2; 12751558Srgrimes **endcpp = savedc; 12761558Srgrimes if (usedarg > 0) { 12771558Srgrimes *cpp = cp; 12781558Srgrimes *endcpp = endcp; 12791558Srgrimes } 12801558Srgrimes return (0); 12811558Srgrimes } 12821558Srgrimes cpopt = cpoptend; 12831558Srgrimes } 12841558Srgrimes **endcpp = savedc; 12851558Srgrimes return (0); 12861558Srgrimes} 12871558Srgrimes 12881558Srgrimes/* 12891558Srgrimes * Translate a character string to the corresponding list of network 12901558Srgrimes * addresses for a hostname. 12911558Srgrimes */ 12921558Srgrimesint 12937401Swpaulget_host(cp, grp, tgrp) 12941558Srgrimes char *cp; 12951558Srgrimes struct grouplist *grp; 12967401Swpaul struct grouplist *tgrp; 12971558Srgrimes{ 12987401Swpaul struct grouplist *checkgrp; 12991558Srgrimes struct hostent *hp, *nhp; 13001558Srgrimes char **addrp, **naddrp; 13011558Srgrimes struct hostent t_host; 13021558Srgrimes int i; 13031558Srgrimes u_long saddr; 13041558Srgrimes char *aptr[2]; 13051558Srgrimes 13061558Srgrimes if (grp->gr_type != GT_NULL) 13071558Srgrimes return (1); 13081558Srgrimes if ((hp = gethostbyname(cp)) == NULL) { 13091558Srgrimes if (isdigit(*cp)) { 13101558Srgrimes saddr = inet_addr(cp); 13111558Srgrimes if (saddr == -1) { 13121558Srgrimes syslog(LOG_ERR, "Inet_addr failed"); 13131558Srgrimes return (1); 13141558Srgrimes } 13151558Srgrimes if ((hp = gethostbyaddr((caddr_t)&saddr, sizeof (saddr), 13161558Srgrimes AF_INET)) == NULL) { 13171558Srgrimes hp = &t_host; 13181558Srgrimes hp->h_name = cp; 13191558Srgrimes hp->h_addrtype = AF_INET; 13201558Srgrimes hp->h_length = sizeof (u_long); 13211558Srgrimes hp->h_addr_list = aptr; 13221558Srgrimes aptr[0] = (char *)&saddr; 13231558Srgrimes aptr[1] = (char *)NULL; 13241558Srgrimes } 13251558Srgrimes } else { 13261558Srgrimes syslog(LOG_ERR, "Gethostbyname failed"); 13271558Srgrimes return (1); 13281558Srgrimes } 13291558Srgrimes } 13307401Swpaul /* 13317401Swpaul * Sanity check: make sure we don't already have an entry 13327401Swpaul * for this host in the grouplist. 13337401Swpaul */ 13347401Swpaul checkgrp = tgrp; 13357401Swpaul while (checkgrp) { 13367401Swpaul if (checkgrp->gr_ptr.gt_hostent != NULL && 13377401Swpaul !strcmp(checkgrp->gr_ptr.gt_hostent->h_name, hp->h_name)) { 13387401Swpaul grp->gr_type = GT_IGNORE; 13397401Swpaul return(0); 13407401Swpaul } 13417401Swpaul checkgrp = checkgrp->gr_next; 13427401Swpaul } 13437401Swpaul 13441558Srgrimes grp->gr_type = GT_HOST; 13451558Srgrimes nhp = grp->gr_ptr.gt_hostent = (struct hostent *) 13461558Srgrimes malloc(sizeof(struct hostent)); 13471558Srgrimes if (nhp == (struct hostent *)NULL) 13481558Srgrimes out_of_mem(); 13491558Srgrimes bcopy((caddr_t)hp, (caddr_t)nhp, 13501558Srgrimes sizeof(struct hostent)); 13511558Srgrimes i = strlen(hp->h_name)+1; 13521558Srgrimes nhp->h_name = (char *)malloc(i); 13531558Srgrimes if (nhp->h_name == (char *)NULL) 13541558Srgrimes out_of_mem(); 13551558Srgrimes bcopy(hp->h_name, nhp->h_name, i); 13561558Srgrimes addrp = hp->h_addr_list; 13571558Srgrimes i = 1; 13581558Srgrimes while (*addrp++) 13591558Srgrimes i++; 13601558Srgrimes naddrp = nhp->h_addr_list = (char **) 13611558Srgrimes malloc(i*sizeof(char *)); 13621558Srgrimes if (naddrp == (char **)NULL) 13631558Srgrimes out_of_mem(); 13641558Srgrimes addrp = hp->h_addr_list; 13651558Srgrimes while (*addrp) { 13661558Srgrimes *naddrp = (char *) 13671558Srgrimes malloc(hp->h_length); 13681558Srgrimes if (*naddrp == (char *)NULL) 13691558Srgrimes out_of_mem(); 13701558Srgrimes bcopy(*addrp, *naddrp, 13711558Srgrimes hp->h_length); 13721558Srgrimes addrp++; 13731558Srgrimes naddrp++; 13741558Srgrimes } 13751558Srgrimes *naddrp = (char *)NULL; 13761558Srgrimes if (debug) 13771558Srgrimes fprintf(stderr, "got host %s\n", hp->h_name); 13781558Srgrimes return (0); 13791558Srgrimes} 13801558Srgrimes 13811558Srgrimes/* 13821558Srgrimes * Free up an exports list component 13831558Srgrimes */ 13841558Srgrimesvoid 13851558Srgrimesfree_exp(ep) 13861558Srgrimes struct exportlist *ep; 13871558Srgrimes{ 13881558Srgrimes 13891558Srgrimes if (ep->ex_defdir) { 13901558Srgrimes free_host(ep->ex_defdir->dp_hosts); 13911558Srgrimes free((caddr_t)ep->ex_defdir); 13921558Srgrimes } 13931558Srgrimes if (ep->ex_fsdir) 13941558Srgrimes free(ep->ex_fsdir); 13951558Srgrimes free_dir(ep->ex_dirl); 13961558Srgrimes free((caddr_t)ep); 13971558Srgrimes} 13981558Srgrimes 13991558Srgrimes/* 14001558Srgrimes * Free hosts. 14011558Srgrimes */ 14021558Srgrimesvoid 14031558Srgrimesfree_host(hp) 14041558Srgrimes struct hostlist *hp; 14051558Srgrimes{ 14061558Srgrimes struct hostlist *hp2; 14071558Srgrimes 14081558Srgrimes while (hp) { 14091558Srgrimes hp2 = hp; 14101558Srgrimes hp = hp->ht_next; 14111558Srgrimes free((caddr_t)hp2); 14121558Srgrimes } 14131558Srgrimes} 14141558Srgrimes 14151558Srgrimesstruct hostlist * 14161558Srgrimesget_ht() 14171558Srgrimes{ 14181558Srgrimes struct hostlist *hp; 14191558Srgrimes 14201558Srgrimes hp = (struct hostlist *)malloc(sizeof (struct hostlist)); 14211558Srgrimes if (hp == (struct hostlist *)NULL) 14221558Srgrimes out_of_mem(); 14231558Srgrimes hp->ht_next = (struct hostlist *)NULL; 14241558Srgrimes return (hp); 14251558Srgrimes} 14261558Srgrimes 14271558Srgrimes#ifdef ISO 14281558Srgrimes/* 14291558Srgrimes * Translate an iso address. 14301558Srgrimes */ 14311558Srgrimesget_isoaddr(cp, grp) 14321558Srgrimes char *cp; 14331558Srgrimes struct grouplist *grp; 14341558Srgrimes{ 14351558Srgrimes struct iso_addr *isop; 14361558Srgrimes struct sockaddr_iso *isoaddr; 14371558Srgrimes 14381558Srgrimes if (grp->gr_type != GT_NULL) 14391558Srgrimes return (1); 14401558Srgrimes if ((isop = iso_addr(cp)) == NULL) { 14411558Srgrimes syslog(LOG_ERR, 14421558Srgrimes "iso_addr failed, ignored"); 14431558Srgrimes return (1); 14441558Srgrimes } 14451558Srgrimes isoaddr = (struct sockaddr_iso *) 14461558Srgrimes malloc(sizeof (struct sockaddr_iso)); 14471558Srgrimes if (isoaddr == (struct sockaddr_iso *)NULL) 14481558Srgrimes out_of_mem(); 14491558Srgrimes bzero((caddr_t)isoaddr, sizeof (struct sockaddr_iso)); 14501558Srgrimes bcopy((caddr_t)isop, (caddr_t)&isoaddr->siso_addr, 14511558Srgrimes sizeof (struct iso_addr)); 14521558Srgrimes isoaddr->siso_len = sizeof (struct sockaddr_iso); 14531558Srgrimes isoaddr->siso_family = AF_ISO; 14541558Srgrimes grp->gr_type = GT_ISO; 14551558Srgrimes grp->gr_ptr.gt_isoaddr = isoaddr; 14561558Srgrimes return (0); 14571558Srgrimes} 14581558Srgrimes#endif /* ISO */ 14591558Srgrimes 14601558Srgrimes/* 14611558Srgrimes * Out of memory, fatal 14621558Srgrimes */ 14631558Srgrimesvoid 14641558Srgrimesout_of_mem() 14651558Srgrimes{ 14661558Srgrimes 14671558Srgrimes syslog(LOG_ERR, "Out of memory"); 14681558Srgrimes exit(2); 14691558Srgrimes} 14701558Srgrimes 14711558Srgrimes/* 14721558Srgrimes * Do the mount syscall with the update flag to push the export info into 14731558Srgrimes * the kernel. 14741558Srgrimes */ 14751558Srgrimesint 14761558Srgrimesdo_mount(ep, grp, exflags, anoncrp, dirp, dirplen, fsb) 14771558Srgrimes struct exportlist *ep; 14781558Srgrimes struct grouplist *grp; 14791558Srgrimes int exflags; 14801558Srgrimes struct ucred *anoncrp; 14811558Srgrimes char *dirp; 14821558Srgrimes int dirplen; 14831558Srgrimes struct statfs *fsb; 14841558Srgrimes{ 14851558Srgrimes char *cp = (char *)NULL; 14861558Srgrimes u_long **addrp; 14871558Srgrimes int done; 14881558Srgrimes char savedc = '\0'; 14891558Srgrimes struct sockaddr_in sin, imask; 14901558Srgrimes union { 14911558Srgrimes struct ufs_args ua; 14921558Srgrimes struct iso_args ia; 14931558Srgrimes struct mfs_args ma; 14941558Srgrimes } args; 14951558Srgrimes u_long net; 14961558Srgrimes 14971558Srgrimes args.ua.fspec = 0; 14981558Srgrimes args.ua.export.ex_flags = exflags; 14991558Srgrimes args.ua.export.ex_anon = *anoncrp; 15001558Srgrimes bzero((char *)&sin, sizeof(sin)); 15011558Srgrimes bzero((char *)&imask, sizeof(imask)); 15021558Srgrimes sin.sin_family = AF_INET; 15031558Srgrimes sin.sin_len = sizeof(sin); 15041558Srgrimes imask.sin_family = AF_INET; 15051558Srgrimes imask.sin_len = sizeof(sin); 15061558Srgrimes if (grp->gr_type == GT_HOST) 15071558Srgrimes addrp = (u_long **)grp->gr_ptr.gt_hostent->h_addr_list; 15081558Srgrimes else 15091558Srgrimes addrp = (u_long **)NULL; 15101558Srgrimes done = FALSE; 15111558Srgrimes while (!done) { 15121558Srgrimes switch (grp->gr_type) { 15131558Srgrimes case GT_HOST: 15141558Srgrimes if (addrp) { 15151558Srgrimes sin.sin_addr.s_addr = **addrp; 15161558Srgrimes args.ua.export.ex_addrlen = sizeof(sin); 15171558Srgrimes } else 15181558Srgrimes args.ua.export.ex_addrlen = 0; 15191558Srgrimes args.ua.export.ex_addr = (struct sockaddr *)&sin; 15201558Srgrimes args.ua.export.ex_masklen = 0; 15211558Srgrimes break; 15221558Srgrimes case GT_NET: 15231558Srgrimes if (grp->gr_ptr.gt_net.nt_mask) 15241558Srgrimes imask.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_mask; 15251558Srgrimes else { 15261558Srgrimes net = ntohl(grp->gr_ptr.gt_net.nt_net); 15271558Srgrimes if (IN_CLASSA(net)) 15281558Srgrimes imask.sin_addr.s_addr = inet_addr("255.0.0.0"); 15291558Srgrimes else if (IN_CLASSB(net)) 15301558Srgrimes imask.sin_addr.s_addr = 15311558Srgrimes inet_addr("255.255.0.0"); 15321558Srgrimes else 15331558Srgrimes imask.sin_addr.s_addr = 15341558Srgrimes inet_addr("255.255.255.0"); 15351558Srgrimes grp->gr_ptr.gt_net.nt_mask = imask.sin_addr.s_addr; 15361558Srgrimes } 15371558Srgrimes sin.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_net; 15381558Srgrimes args.ua.export.ex_addr = (struct sockaddr *)&sin; 15391558Srgrimes args.ua.export.ex_addrlen = sizeof (sin); 15401558Srgrimes args.ua.export.ex_mask = (struct sockaddr *)&imask; 15411558Srgrimes args.ua.export.ex_masklen = sizeof (imask); 15421558Srgrimes break; 15431558Srgrimes#ifdef ISO 15441558Srgrimes case GT_ISO: 15451558Srgrimes args.ua.export.ex_addr = 15461558Srgrimes (struct sockaddr *)grp->gr_ptr.gt_isoaddr; 15471558Srgrimes args.ua.export.ex_addrlen = 15481558Srgrimes sizeof(struct sockaddr_iso); 15491558Srgrimes args.ua.export.ex_masklen = 0; 15501558Srgrimes break; 15511558Srgrimes#endif /* ISO */ 15527401Swpaul case GT_IGNORE: 15537401Swpaul return(0); 15547401Swpaul break; 15551558Srgrimes default: 15561558Srgrimes syslog(LOG_ERR, "Bad grouptype"); 15571558Srgrimes if (cp) 15581558Srgrimes *cp = savedc; 15591558Srgrimes return (1); 15601558Srgrimes }; 15611558Srgrimes 15621558Srgrimes /* 15631558Srgrimes * XXX: 15641558Srgrimes * Maybe I should just use the fsb->f_mntonname path instead 15651558Srgrimes * of looping back up the dirp to the mount point?? 15661558Srgrimes * Also, needs to know how to export all types of local 15671558Srgrimes * exportable file systems and not just MOUNT_UFS. 15681558Srgrimes */ 15691558Srgrimes while (mount(fsb->f_type, dirp, 15701558Srgrimes fsb->f_flags | MNT_UPDATE, (caddr_t)&args) < 0) { 15711558Srgrimes if (cp) 15721558Srgrimes *cp-- = savedc; 15731558Srgrimes else 15741558Srgrimes cp = dirp + dirplen - 1; 15751558Srgrimes if (errno == EPERM) { 15761558Srgrimes syslog(LOG_ERR, 15771558Srgrimes "Can't change attributes for %s.\n", dirp); 15781558Srgrimes return (1); 15791558Srgrimes } 15801558Srgrimes if (opt_flags & OP_ALLDIRS) { 15814895Swollman syslog(LOG_ERR, "Could not remount %s: %m", 15824895Swollman dirp); 15831558Srgrimes return (1); 15841558Srgrimes } 15851558Srgrimes /* back up over the last component */ 15861558Srgrimes while (*cp == '/' && cp > dirp) 15871558Srgrimes cp--; 15881558Srgrimes while (*(cp - 1) != '/' && cp > dirp) 15891558Srgrimes cp--; 15901558Srgrimes if (cp == dirp) { 15911558Srgrimes if (debug) 15921558Srgrimes fprintf(stderr,"mnt unsucc\n"); 15931558Srgrimes syslog(LOG_ERR, "Can't export %s", dirp); 15941558Srgrimes return (1); 15951558Srgrimes } 15961558Srgrimes savedc = *cp; 15971558Srgrimes *cp = '\0'; 15981558Srgrimes } 15991558Srgrimes if (addrp) { 16001558Srgrimes ++addrp; 16011558Srgrimes if (*addrp == (u_long *)NULL) 16021558Srgrimes done = TRUE; 16031558Srgrimes } else 16041558Srgrimes done = TRUE; 16051558Srgrimes } 16061558Srgrimes if (cp) 16071558Srgrimes *cp = savedc; 16081558Srgrimes return (0); 16091558Srgrimes} 16101558Srgrimes 16111558Srgrimes/* 16121558Srgrimes * Translate a net address. 16131558Srgrimes */ 16141558Srgrimesint 16151558Srgrimesget_net(cp, net, maskflg) 16161558Srgrimes char *cp; 16171558Srgrimes struct netmsk *net; 16181558Srgrimes int maskflg; 16191558Srgrimes{ 16201558Srgrimes struct netent *np; 16211558Srgrimes long netaddr; 16221558Srgrimes struct in_addr inetaddr, inetaddr2; 16231558Srgrimes char *name; 16241558Srgrimes 16251558Srgrimes if (np = getnetbyname(cp)) 16261558Srgrimes inetaddr = inet_makeaddr(np->n_net, 0); 16271558Srgrimes else if (isdigit(*cp)) { 16281558Srgrimes if ((netaddr = inet_network(cp)) == -1) 16291558Srgrimes return (1); 16301558Srgrimes inetaddr = inet_makeaddr(netaddr, 0); 16311558Srgrimes /* 16321558Srgrimes * Due to arbritrary subnet masks, you don't know how many 16331558Srgrimes * bits to shift the address to make it into a network, 16341558Srgrimes * however you do know how to make a network address into 16351558Srgrimes * a host with host == 0 and then compare them. 16361558Srgrimes * (What a pest) 16371558Srgrimes */ 16381558Srgrimes if (!maskflg) { 16391558Srgrimes setnetent(0); 16401558Srgrimes while (np = getnetent()) { 16411558Srgrimes inetaddr2 = inet_makeaddr(np->n_net, 0); 16421558Srgrimes if (inetaddr2.s_addr == inetaddr.s_addr) 16431558Srgrimes break; 16441558Srgrimes } 16451558Srgrimes endnetent(); 16461558Srgrimes } 16471558Srgrimes } else 16481558Srgrimes return (1); 16491558Srgrimes if (maskflg) 16501558Srgrimes net->nt_mask = inetaddr.s_addr; 16511558Srgrimes else { 16521558Srgrimes if (np) 16531558Srgrimes name = np->n_name; 16541558Srgrimes else 16551558Srgrimes name = inet_ntoa(inetaddr); 16561558Srgrimes net->nt_name = (char *)malloc(strlen(name) + 1); 16571558Srgrimes if (net->nt_name == (char *)NULL) 16581558Srgrimes out_of_mem(); 16591558Srgrimes strcpy(net->nt_name, name); 16601558Srgrimes net->nt_net = inetaddr.s_addr; 16611558Srgrimes } 16621558Srgrimes return (0); 16631558Srgrimes} 16641558Srgrimes 16651558Srgrimes/* 16661558Srgrimes * Parse out the next white space separated field 16671558Srgrimes */ 16681558Srgrimesvoid 16691558Srgrimesnextfield(cp, endcp) 16701558Srgrimes char **cp; 16711558Srgrimes char **endcp; 16721558Srgrimes{ 16731558Srgrimes char *p; 16741558Srgrimes 16751558Srgrimes p = *cp; 16761558Srgrimes while (*p == ' ' || *p == '\t') 16771558Srgrimes p++; 16781558Srgrimes if (*p == '\n' || *p == '\0') 16791558Srgrimes *cp = *endcp = p; 16801558Srgrimes else { 16811558Srgrimes *cp = p++; 16821558Srgrimes while (*p != ' ' && *p != '\t' && *p != '\n' && *p != '\0') 16831558Srgrimes p++; 16841558Srgrimes *endcp = p; 16851558Srgrimes } 16861558Srgrimes} 16871558Srgrimes 16881558Srgrimes/* 16891558Srgrimes * Get an exports file line. Skip over blank lines and handle line 16901558Srgrimes * continuations. 16911558Srgrimes */ 16921558Srgrimesint 16931558Srgrimesget_line() 16941558Srgrimes{ 16951558Srgrimes char *p, *cp; 16961558Srgrimes int len; 16971558Srgrimes int totlen, cont_line; 16981558Srgrimes 16991558Srgrimes /* 17001558Srgrimes * Loop around ignoring blank lines and getting all continuation lines. 17011558Srgrimes */ 17021558Srgrimes p = line; 17031558Srgrimes totlen = 0; 17041558Srgrimes do { 17051558Srgrimes if (fgets(p, LINESIZ - totlen, exp_file) == NULL) 17061558Srgrimes return (0); 17071558Srgrimes len = strlen(p); 17081558Srgrimes cp = p + len - 1; 17091558Srgrimes cont_line = 0; 17101558Srgrimes while (cp >= p && 17111558Srgrimes (*cp == ' ' || *cp == '\t' || *cp == '\n' || *cp == '\\')) { 17121558Srgrimes if (*cp == '\\') 17131558Srgrimes cont_line = 1; 17141558Srgrimes cp--; 17151558Srgrimes len--; 17161558Srgrimes } 17171558Srgrimes *++cp = '\0'; 17181558Srgrimes if (len > 0) { 17191558Srgrimes totlen += len; 17201558Srgrimes if (totlen >= LINESIZ) { 17211558Srgrimes syslog(LOG_ERR, "Exports line too long"); 17221558Srgrimes exit(2); 17231558Srgrimes } 17241558Srgrimes p = cp; 17251558Srgrimes } 17261558Srgrimes } while (totlen == 0 || cont_line); 17271558Srgrimes return (1); 17281558Srgrimes} 17291558Srgrimes 17301558Srgrimes/* 17311558Srgrimes * Parse a description of a credential. 17321558Srgrimes */ 17331558Srgrimesvoid 17341558Srgrimesparsecred(namelist, cr) 17351558Srgrimes char *namelist; 17361558Srgrimes struct ucred *cr; 17371558Srgrimes{ 17381558Srgrimes char *name; 17391558Srgrimes int cnt; 17401558Srgrimes char *names; 17411558Srgrimes struct passwd *pw; 17421558Srgrimes struct group *gr; 17431558Srgrimes int ngroups, groups[NGROUPS + 1]; 17441558Srgrimes 17451558Srgrimes /* 17461558Srgrimes * Set up the unpriviledged user. 17471558Srgrimes */ 17481558Srgrimes cr->cr_ref = 1; 17491558Srgrimes cr->cr_uid = -2; 17501558Srgrimes cr->cr_groups[0] = -2; 17511558Srgrimes cr->cr_ngroups = 1; 17521558Srgrimes /* 17531558Srgrimes * Get the user's password table entry. 17541558Srgrimes */ 17551558Srgrimes names = strsep(&namelist, " \t\n"); 17561558Srgrimes name = strsep(&names, ":"); 17571558Srgrimes if (isdigit(*name) || *name == '-') 17581558Srgrimes pw = getpwuid(atoi(name)); 17591558Srgrimes else 17601558Srgrimes pw = getpwnam(name); 17611558Srgrimes /* 17621558Srgrimes * Credentials specified as those of a user. 17631558Srgrimes */ 17641558Srgrimes if (names == NULL) { 17651558Srgrimes if (pw == NULL) { 17661558Srgrimes syslog(LOG_ERR, "Unknown user: %s", name); 17671558Srgrimes return; 17681558Srgrimes } 17691558Srgrimes cr->cr_uid = pw->pw_uid; 17701558Srgrimes ngroups = NGROUPS + 1; 17711558Srgrimes if (getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups)) 17721558Srgrimes syslog(LOG_ERR, "Too many groups"); 17731558Srgrimes /* 17741558Srgrimes * Convert from int's to gid_t's and compress out duplicate 17751558Srgrimes */ 17761558Srgrimes cr->cr_ngroups = ngroups - 1; 17771558Srgrimes cr->cr_groups[0] = groups[0]; 17781558Srgrimes for (cnt = 2; cnt < ngroups; cnt++) 17791558Srgrimes cr->cr_groups[cnt - 1] = groups[cnt]; 17801558Srgrimes return; 17811558Srgrimes } 17821558Srgrimes /* 17831558Srgrimes * Explicit credential specified as a colon separated list: 17841558Srgrimes * uid:gid:gid:... 17851558Srgrimes */ 17861558Srgrimes if (pw != NULL) 17871558Srgrimes cr->cr_uid = pw->pw_uid; 17881558Srgrimes else if (isdigit(*name) || *name == '-') 17891558Srgrimes cr->cr_uid = atoi(name); 17901558Srgrimes else { 17911558Srgrimes syslog(LOG_ERR, "Unknown user: %s", name); 17921558Srgrimes return; 17931558Srgrimes } 17941558Srgrimes cr->cr_ngroups = 0; 17951558Srgrimes while (names != NULL && *names != '\0' && cr->cr_ngroups < NGROUPS) { 17961558Srgrimes name = strsep(&names, ":"); 17971558Srgrimes if (isdigit(*name) || *name == '-') { 17981558Srgrimes cr->cr_groups[cr->cr_ngroups++] = atoi(name); 17991558Srgrimes } else { 18001558Srgrimes if ((gr = getgrnam(name)) == NULL) { 18011558Srgrimes syslog(LOG_ERR, "Unknown group: %s", name); 18021558Srgrimes continue; 18031558Srgrimes } 18041558Srgrimes cr->cr_groups[cr->cr_ngroups++] = gr->gr_gid; 18051558Srgrimes } 18061558Srgrimes } 18071558Srgrimes if (names != NULL && *names != '\0' && cr->cr_ngroups == NGROUPS) 18081558Srgrimes syslog(LOG_ERR, "Too many groups"); 18091558Srgrimes} 18101558Srgrimes 18111558Srgrimes#define STRSIZ (RPCMNT_NAMELEN+RPCMNT_PATHLEN+50) 18121558Srgrimes/* 18131558Srgrimes * Routines that maintain the remote mounttab 18141558Srgrimes */ 18151558Srgrimesvoid 18161558Srgrimesget_mountlist() 18171558Srgrimes{ 18181558Srgrimes struct mountlist *mlp, **mlpp; 18191558Srgrimes char *eos, *dirp; 18201558Srgrimes int len; 18211558Srgrimes char str[STRSIZ]; 18221558Srgrimes FILE *mlfile; 18231558Srgrimes 18241558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "r")) == NULL) { 18251558Srgrimes syslog(LOG_ERR, "Can't open %s", _PATH_RMOUNTLIST); 18261558Srgrimes return; 18271558Srgrimes } 18281558Srgrimes mlpp = &mlhead; 18291558Srgrimes while (fgets(str, STRSIZ, mlfile) != NULL) { 18301558Srgrimes if ((dirp = index(str, '\t')) == NULL && 18311558Srgrimes (dirp = index(str, ' ')) == NULL) 18321558Srgrimes continue; 18331558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 18341558Srgrimes len = dirp-str; 18351558Srgrimes if (len > RPCMNT_NAMELEN) 18361558Srgrimes len = RPCMNT_NAMELEN; 18371558Srgrimes bcopy(str, mlp->ml_host, len); 18381558Srgrimes mlp->ml_host[len] = '\0'; 18391558Srgrimes while (*dirp == '\t' || *dirp == ' ') 18401558Srgrimes dirp++; 18411558Srgrimes if ((eos = index(dirp, '\t')) == NULL && 18421558Srgrimes (eos = index(dirp, ' ')) == NULL && 18431558Srgrimes (eos = index(dirp, '\n')) == NULL) 18441558Srgrimes len = strlen(dirp); 18451558Srgrimes else 18461558Srgrimes len = eos-dirp; 18471558Srgrimes if (len > RPCMNT_PATHLEN) 18481558Srgrimes len = RPCMNT_PATHLEN; 18491558Srgrimes bcopy(dirp, mlp->ml_dirp, len); 18501558Srgrimes mlp->ml_dirp[len] = '\0'; 18511558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 18521558Srgrimes *mlpp = mlp; 18531558Srgrimes mlpp = &mlp->ml_next; 18541558Srgrimes } 18551558Srgrimes fclose(mlfile); 18561558Srgrimes} 18571558Srgrimes 18581558Srgrimesvoid 18591558Srgrimesdel_mlist(hostp, dirp) 18601558Srgrimes char *hostp, *dirp; 18611558Srgrimes{ 18621558Srgrimes struct mountlist *mlp, **mlpp; 18631558Srgrimes struct mountlist *mlp2; 18641558Srgrimes FILE *mlfile; 18651558Srgrimes int fnd = 0; 18661558Srgrimes 18671558Srgrimes mlpp = &mlhead; 18681558Srgrimes mlp = mlhead; 18691558Srgrimes while (mlp) { 18701558Srgrimes if (!strcmp(mlp->ml_host, hostp) && 18711558Srgrimes (!dirp || !strcmp(mlp->ml_dirp, dirp))) { 18721558Srgrimes fnd = 1; 18731558Srgrimes mlp2 = mlp; 18741558Srgrimes *mlpp = mlp = mlp->ml_next; 18751558Srgrimes free((caddr_t)mlp2); 18761558Srgrimes } else { 18771558Srgrimes mlpp = &mlp->ml_next; 18781558Srgrimes mlp = mlp->ml_next; 18791558Srgrimes } 18801558Srgrimes } 18811558Srgrimes if (fnd) { 18821558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "w")) == NULL) { 18831558Srgrimes syslog(LOG_ERR,"Can't update %s", _PATH_RMOUNTLIST); 18841558Srgrimes return; 18851558Srgrimes } 18861558Srgrimes mlp = mlhead; 18871558Srgrimes while (mlp) { 18881558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 18891558Srgrimes mlp = mlp->ml_next; 18901558Srgrimes } 18911558Srgrimes fclose(mlfile); 18921558Srgrimes } 18931558Srgrimes} 18941558Srgrimes 18951558Srgrimesvoid 18961558Srgrimesadd_mlist(hostp, dirp) 18971558Srgrimes char *hostp, *dirp; 18981558Srgrimes{ 18991558Srgrimes struct mountlist *mlp, **mlpp; 19001558Srgrimes FILE *mlfile; 19011558Srgrimes 19021558Srgrimes mlpp = &mlhead; 19031558Srgrimes mlp = mlhead; 19041558Srgrimes while (mlp) { 19051558Srgrimes if (!strcmp(mlp->ml_host, hostp) && !strcmp(mlp->ml_dirp, dirp)) 19061558Srgrimes return; 19071558Srgrimes mlpp = &mlp->ml_next; 19081558Srgrimes mlp = mlp->ml_next; 19091558Srgrimes } 19101558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 19111558Srgrimes strncpy(mlp->ml_host, hostp, RPCMNT_NAMELEN); 19121558Srgrimes mlp->ml_host[RPCMNT_NAMELEN] = '\0'; 19131558Srgrimes strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN); 19141558Srgrimes mlp->ml_dirp[RPCMNT_PATHLEN] = '\0'; 19151558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 19161558Srgrimes *mlpp = mlp; 19171558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "a")) == NULL) { 19181558Srgrimes syslog(LOG_ERR, "Can't update %s", _PATH_RMOUNTLIST); 19191558Srgrimes return; 19201558Srgrimes } 19211558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 19221558Srgrimes fclose(mlfile); 19231558Srgrimes} 19241558Srgrimes 19251558Srgrimes/* 19261558Srgrimes * This function is called via. SIGTERM when the system is going down. 19271558Srgrimes * It sends a broadcast RPCMNT_UMNTALL. 19281558Srgrimes */ 19291558Srgrimesvoid 19301558Srgrimessend_umntall() 19311558Srgrimes{ 19321558Srgrimes (void) clnt_broadcast(RPCPROG_MNT, RPCMNT_VER1, RPCMNT_UMNTALL, 19331558Srgrimes xdr_void, (caddr_t)0, xdr_void, (caddr_t)0, umntall_each); 19341558Srgrimes exit(0); 19351558Srgrimes} 19361558Srgrimes 19371558Srgrimesint 19381558Srgrimesumntall_each(resultsp, raddr) 19391558Srgrimes caddr_t resultsp; 19401558Srgrimes struct sockaddr_in *raddr; 19411558Srgrimes{ 19421558Srgrimes return (1); 19431558Srgrimes} 19441558Srgrimes 19451558Srgrimes/* 19461558Srgrimes * Free up a group list. 19471558Srgrimes */ 19481558Srgrimesvoid 19491558Srgrimesfree_grp(grp) 19501558Srgrimes struct grouplist *grp; 19511558Srgrimes{ 19521558Srgrimes char **addrp; 19531558Srgrimes 19541558Srgrimes if (grp->gr_type == GT_HOST) { 19551558Srgrimes if (grp->gr_ptr.gt_hostent->h_name) { 19561558Srgrimes addrp = grp->gr_ptr.gt_hostent->h_addr_list; 19571558Srgrimes while (addrp && *addrp) 19581558Srgrimes free(*addrp++); 19591558Srgrimes free((caddr_t)grp->gr_ptr.gt_hostent->h_addr_list); 19601558Srgrimes free(grp->gr_ptr.gt_hostent->h_name); 19611558Srgrimes } 19621558Srgrimes free((caddr_t)grp->gr_ptr.gt_hostent); 19631558Srgrimes } else if (grp->gr_type == GT_NET) { 19641558Srgrimes if (grp->gr_ptr.gt_net.nt_name) 19651558Srgrimes free(grp->gr_ptr.gt_net.nt_name); 19661558Srgrimes } 19671558Srgrimes#ifdef ISO 19681558Srgrimes else if (grp->gr_type == GT_ISO) 19691558Srgrimes free((caddr_t)grp->gr_ptr.gt_isoaddr); 19701558Srgrimes#endif 19711558Srgrimes free((caddr_t)grp); 19721558Srgrimes} 19731558Srgrimes 19741558Srgrimes#ifdef DEBUG 19751558Srgrimesvoid 19761558SrgrimesSYSLOG(int pri, const char *fmt, ...) 19771558Srgrimes{ 19781558Srgrimes va_list ap; 19791558Srgrimes 19801558Srgrimes va_start(ap, fmt); 19811558Srgrimes vfprintf(stderr, fmt, ap); 19821558Srgrimes va_end(ap); 19831558Srgrimes} 19841558Srgrimes#endif /* DEBUG */ 19851558Srgrimes 19861558Srgrimes/* 19871558Srgrimes * Check options for consistency. 19881558Srgrimes */ 19891558Srgrimesint 19901558Srgrimescheck_options(dp) 19911558Srgrimes struct dirlist *dp; 19921558Srgrimes{ 19931558Srgrimes 19941558Srgrimes if (dp == (struct dirlist *)NULL) 19951558Srgrimes return (1); 19961558Srgrimes if ((opt_flags & (OP_MAPROOT | OP_MAPALL)) == (OP_MAPROOT | OP_MAPALL) || 19971558Srgrimes (opt_flags & (OP_MAPROOT | OP_KERB)) == (OP_MAPROOT | OP_KERB) || 19981558Srgrimes (opt_flags & (OP_MAPALL | OP_KERB)) == (OP_MAPALL | OP_KERB)) { 19991558Srgrimes syslog(LOG_ERR, "-mapall, -maproot and -kerb mutually exclusive"); 20001558Srgrimes return (1); 20011558Srgrimes } 20021558Srgrimes if ((opt_flags & OP_MASK) && (opt_flags & OP_NET) == 0) { 20031558Srgrimes syslog(LOG_ERR, "-mask requires -net"); 20041558Srgrimes return (1); 20051558Srgrimes } 20061558Srgrimes if ((opt_flags & (OP_NET | OP_ISO)) == (OP_NET | OP_ISO)) { 20071558Srgrimes syslog(LOG_ERR, "-net and -iso mutually exclusive"); 20081558Srgrimes return (1); 20091558Srgrimes } 20101558Srgrimes if ((opt_flags & OP_ALLDIRS) && dp->dp_left) { 20111558Srgrimes syslog(LOG_ERR, "-alldir has multiple directories"); 20121558Srgrimes return (1); 20131558Srgrimes } 20141558Srgrimes return (0); 20151558Srgrimes} 20161558Srgrimes 20171558Srgrimes/* 20181558Srgrimes * Check an absolute directory path for any symbolic links. Return true 20191558Srgrimes * if no symbolic links are found. 20201558Srgrimes */ 20211558Srgrimesint 20221558Srgrimescheck_dirpath(dirp) 20231558Srgrimes char *dirp; 20241558Srgrimes{ 20251558Srgrimes char *cp; 20261558Srgrimes int ret = 1; 20271558Srgrimes struct stat sb; 20281558Srgrimes 20291558Srgrimes cp = dirp + 1; 20301558Srgrimes while (*cp && ret) { 20311558Srgrimes if (*cp == '/') { 20321558Srgrimes *cp = '\0'; 20331558Srgrimes if (lstat(dirp, &sb) < 0 || 20341558Srgrimes (sb.st_mode & S_IFMT) != S_IFDIR) 20351558Srgrimes ret = 0; 20361558Srgrimes *cp = '/'; 20371558Srgrimes } 20381558Srgrimes cp++; 20391558Srgrimes } 20401558Srgrimes if (lstat(dirp, &sb) < 0 || 20411558Srgrimes (sb.st_mode & S_IFMT) != S_IFDIR) 20421558Srgrimes ret = 0; 20431558Srgrimes return (ret); 20441558Srgrimes} 2045