mountd.c revision 28911
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 4423681Speter/*static char sccsid[] = "@(#)mountd.c 8.15 (Berkeley) 5/1/95"; */ 452999Swollmanstatic const char rcsid[] = 4628911Sguido "$Id: mountd.c,v 1.22 1997/07/16 09:27:53 dfr 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> 5724330Sguido#include <sys/sysctl.h> 581558Srgrimes 591558Srgrimes#include <rpc/rpc.h> 601558Srgrimes#include <rpc/pmap_clnt.h> 611558Srgrimes#include <rpc/pmap_prot.h> 621558Srgrimes#ifdef ISO 631558Srgrimes#include <netiso/iso.h> 641558Srgrimes#endif 651558Srgrimes#include <nfs/rpcv2.h> 669336Sdfr#include <nfs/nfsproto.h> 6724330Sguido#include <nfs/nfs.h> 6823681Speter#include <ufs/ufs/ufsmount.h> 6923681Speter#include <msdosfs/msdosfsmount.h> 7023681Speter#include <isofs/cd9660/cd9660_mount.h> /* XXX need isofs in include */ 711558Srgrimes 721558Srgrimes#include <arpa/inet.h> 731558Srgrimes 741558Srgrimes#include <ctype.h> 751558Srgrimes#include <errno.h> 761558Srgrimes#include <grp.h> 771558Srgrimes#include <netdb.h> 781558Srgrimes#include <pwd.h> 791558Srgrimes#include <signal.h> 801558Srgrimes#include <stdio.h> 811558Srgrimes#include <stdlib.h> 821558Srgrimes#include <string.h> 831558Srgrimes#include <unistd.h> 841558Srgrimes#include "pathnames.h" 851558Srgrimes 861558Srgrimes#ifdef DEBUG 871558Srgrimes#include <stdarg.h> 881558Srgrimes#endif 891558Srgrimes 901558Srgrimes/* 911558Srgrimes * Structures for keeping the mount list and export list 921558Srgrimes */ 931558Srgrimesstruct mountlist { 941558Srgrimes struct mountlist *ml_next; 951558Srgrimes char ml_host[RPCMNT_NAMELEN+1]; 961558Srgrimes char ml_dirp[RPCMNT_PATHLEN+1]; 971558Srgrimes}; 981558Srgrimes 991558Srgrimesstruct dirlist { 1001558Srgrimes struct dirlist *dp_left; 1011558Srgrimes struct dirlist *dp_right; 1021558Srgrimes int dp_flag; 1031558Srgrimes struct hostlist *dp_hosts; /* List of hosts this dir exported to */ 1041558Srgrimes char dp_dirp[1]; /* Actually malloc'd to size of dir */ 1051558Srgrimes}; 1061558Srgrimes/* dp_flag bits */ 1071558Srgrimes#define DP_DEFSET 0x1 1089336Sdfr#define DP_HOSTSET 0x2 1099336Sdfr#define DP_KERB 0x4 1101558Srgrimes 1111558Srgrimesstruct exportlist { 1121558Srgrimes struct exportlist *ex_next; 1131558Srgrimes struct dirlist *ex_dirl; 1141558Srgrimes struct dirlist *ex_defdir; 1151558Srgrimes int ex_flag; 1161558Srgrimes fsid_t ex_fs; 1171558Srgrimes char *ex_fsdir; 11827447Sdfr char *ex_indexfile; 1191558Srgrimes}; 1201558Srgrimes/* ex_flag bits */ 1211558Srgrimes#define EX_LINKED 0x1 1221558Srgrimes 1231558Srgrimesstruct netmsk { 1241558Srgrimes u_long nt_net; 1251558Srgrimes u_long nt_mask; 1261558Srgrimes char *nt_name; 1271558Srgrimes}; 1281558Srgrimes 1291558Srgrimesunion grouptypes { 1301558Srgrimes struct hostent *gt_hostent; 1311558Srgrimes struct netmsk gt_net; 1321558Srgrimes#ifdef ISO 1331558Srgrimes struct sockaddr_iso *gt_isoaddr; 1341558Srgrimes#endif 1351558Srgrimes}; 1361558Srgrimes 1371558Srgrimesstruct grouplist { 1381558Srgrimes int gr_type; 1391558Srgrimes union grouptypes gr_ptr; 1401558Srgrimes struct grouplist *gr_next; 1411558Srgrimes}; 1421558Srgrimes/* Group types */ 1431558Srgrimes#define GT_NULL 0x0 1441558Srgrimes#define GT_HOST 0x1 1451558Srgrimes#define GT_NET 0x2 1461558Srgrimes#define GT_ISO 0x4 1477401Swpaul#define GT_IGNORE 0x5 1481558Srgrimes 1491558Srgrimesstruct hostlist { 1509336Sdfr int ht_flag; /* Uses DP_xx bits */ 1511558Srgrimes struct grouplist *ht_grp; 1521558Srgrimes struct hostlist *ht_next; 1531558Srgrimes}; 1541558Srgrimes 1559336Sdfrstruct fhreturn { 1569336Sdfr int fhr_flag; 1579336Sdfr int fhr_vers; 1589336Sdfr nfsfh_t fhr_fh; 1599336Sdfr}; 1609336Sdfr 1611558Srgrimes/* Global defs */ 1621558Srgrimeschar *add_expdir __P((struct dirlist **, char *, int)); 1631558Srgrimesvoid add_dlist __P((struct dirlist **, struct dirlist *, 1649336Sdfr struct grouplist *, int)); 1651558Srgrimesvoid add_mlist __P((char *, char *)); 1661558Srgrimesint check_dirpath __P((char *)); 1671558Srgrimesint check_options __P((struct dirlist *)); 1689336Sdfrint chk_host __P((struct dirlist *, u_long, int *, int *)); 1691558Srgrimesvoid del_mlist __P((char *, char *)); 1701558Srgrimesstruct dirlist *dirp_search __P((struct dirlist *, char *)); 1711558Srgrimesint do_mount __P((struct exportlist *, struct grouplist *, int, 1729336Sdfr struct ucred *, char *, int, struct statfs *)); 1731558Srgrimesint do_opt __P((char **, char **, struct exportlist *, struct grouplist *, 1741558Srgrimes int *, int *, struct ucred *)); 1751558Srgrimesstruct exportlist *ex_search __P((fsid_t *)); 1761558Srgrimesstruct exportlist *get_exp __P((void)); 1771558Srgrimesvoid free_dir __P((struct dirlist *)); 1781558Srgrimesvoid free_exp __P((struct exportlist *)); 1791558Srgrimesvoid free_grp __P((struct grouplist *)); 1801558Srgrimesvoid free_host __P((struct hostlist *)); 1811558Srgrimesvoid get_exportlist __P((void)); 1827401Swpaulint get_host __P((char *, struct grouplist *, struct grouplist *)); 1839336Sdfrint get_num __P((char *)); 1841558Srgrimesstruct hostlist *get_ht __P((void)); 1851558Srgrimesint get_line __P((void)); 1861558Srgrimesvoid get_mountlist __P((void)); 1871558Srgrimesint get_net __P((char *, struct netmsk *, int)); 1881558Srgrimesvoid getexp_err __P((struct exportlist *, struct grouplist *)); 1891558Srgrimesstruct grouplist *get_grp __P((void)); 1901558Srgrimesvoid hang_dirp __P((struct dirlist *, struct grouplist *, 1911558Srgrimes struct exportlist *, int)); 1921558Srgrimesvoid mntsrv __P((struct svc_req *, SVCXPRT *)); 1931558Srgrimesvoid nextfield __P((char **, char **)); 1941558Srgrimesvoid out_of_mem __P((void)); 1951558Srgrimesvoid parsecred __P((char *, struct ucred *)); 1961558Srgrimesint put_exlist __P((struct dirlist *, XDR *, struct dirlist *, int *)); 1971558Srgrimesint scan_tree __P((struct dirlist *, u_long)); 1981558Srgrimesvoid send_umntall __P((void)); 1991558Srgrimesint umntall_each __P((caddr_t, struct sockaddr_in *)); 2001558Srgrimesint xdr_dir __P((XDR *, char *)); 2011558Srgrimesint xdr_explist __P((XDR *, caddr_t)); 2029336Sdfrint xdr_fhs __P((XDR *, caddr_t)); 2031558Srgrimesint xdr_mlist __P((XDR *, caddr_t)); 2041558Srgrimes 2051558Srgrimes/* C library */ 2061558Srgrimesint getnetgrent(); 2071558Srgrimesvoid endnetgrent(); 2081558Srgrimesvoid setnetgrent(); 2091558Srgrimes 2101558Srgrimes#ifdef ISO 2111558Srgrimesstruct iso_addr *iso_addr(); 2121558Srgrimes#endif 2131558Srgrimes 2141558Srgrimesstruct exportlist *exphead; 2151558Srgrimesstruct mountlist *mlhead; 2161558Srgrimesstruct grouplist *grphead; 2171558Srgrimeschar exname[MAXPATHLEN]; 2181558Srgrimesstruct ucred def_anon = { 2191558Srgrimes 1, 2201558Srgrimes (uid_t) -2, 2211558Srgrimes 1, 2221558Srgrimes { (gid_t) -2 } 2231558Srgrimes}; 22425087Sdfrint force_v2 = 0; 2259336Sdfrint resvport_only = 1; 2269336Sdfrint dir_only = 1; 2271558Srgrimesint opt_flags; 2281558Srgrimes/* Bits for above */ 2291558Srgrimes#define OP_MAPROOT 0x01 2301558Srgrimes#define OP_MAPALL 0x02 2311558Srgrimes#define OP_KERB 0x04 2321558Srgrimes#define OP_MASK 0x08 2331558Srgrimes#define OP_NET 0x10 2341558Srgrimes#define OP_ISO 0x20 2351558Srgrimes#define OP_ALLDIRS 0x40 2361558Srgrimes 2371558Srgrimes#ifdef DEBUG 2381558Srgrimesint debug = 1; 2391558Srgrimesvoid SYSLOG __P((int, const char *, ...)); 2401558Srgrimes#define syslog SYSLOG 2411558Srgrimes#else 2421558Srgrimesint debug = 0; 2431558Srgrimes#endif 2441558Srgrimes 2451558Srgrimes/* 2461558Srgrimes * Mountd server for NFS mount protocol as described in: 2471558Srgrimes * NFS: Network File System Protocol Specification, RFC1094, Appendix A 2481558Srgrimes * The optional arguments are the exports file name 2491558Srgrimes * default: _PATH_EXPORTS 2501558Srgrimes * and "-n" to allow nonroot mount. 2511558Srgrimes */ 2521558Srgrimesint 2531558Srgrimesmain(argc, argv) 2541558Srgrimes int argc; 2551558Srgrimes char **argv; 2561558Srgrimes{ 2579202Srgrimes SVCXPRT *udptransp, *tcptransp; 2581558Srgrimes int c; 25924489Sbde int mib[3]; 2609336Sdfr#ifdef __FreeBSD__ 26123681Speter struct vfsconf vfc; 26223681Speter int error; 2631558Srgrimes 26423681Speter error = getvfsbyname("nfs", &vfc); 26523681Speter if (error && vfsisloadable("nfs")) { 2662999Swollman if(vfsload("nfs")) 2672999Swollman err(1, "vfsload(nfs)"); 2682999Swollman endvfsent(); /* flush cache */ 26923681Speter error = getvfsbyname("nfs", &vfc); 2702999Swollman } 27123681Speter if (error) 2722999Swollman errx(1, "NFS support is not available in the running kernel"); 2739336Sdfr#endif /* __FreeBSD__ */ 2742999Swollman 27525087Sdfr while ((c = getopt(argc, argv, "2dnr")) != -1) 2761558Srgrimes switch (c) { 27725087Sdfr case '2': 27825087Sdfr force_v2 = 1; 27925087Sdfr break; 2809336Sdfr case 'n': 2819336Sdfr resvport_only = 0; 2829336Sdfr break; 2839336Sdfr case 'r': 2849336Sdfr dir_only = 0; 2859336Sdfr break; 2868688Sphk case 'd': 2878688Sphk debug = debug ? 0 : 1; 2888688Sphk break; 2891558Srgrimes default: 29023681Speter fprintf(stderr, "Usage: mountd [-d] [-r] [-n] [export_file]\n"); 2911558Srgrimes exit(1); 2921558Srgrimes }; 2931558Srgrimes argc -= optind; 2941558Srgrimes argv += optind; 2951558Srgrimes grphead = (struct grouplist *)NULL; 2961558Srgrimes exphead = (struct exportlist *)NULL; 2971558Srgrimes mlhead = (struct mountlist *)NULL; 2981558Srgrimes if (argc == 1) { 2991558Srgrimes strncpy(exname, *argv, MAXPATHLEN-1); 3001558Srgrimes exname[MAXPATHLEN-1] = '\0'; 3011558Srgrimes } else 3021558Srgrimes strcpy(exname, _PATH_EXPORTS); 3031558Srgrimes openlog("mountd", LOG_PID, LOG_DAEMON); 3041558Srgrimes if (debug) 3051558Srgrimes fprintf(stderr,"Getting export list.\n"); 3061558Srgrimes get_exportlist(); 3071558Srgrimes if (debug) 3081558Srgrimes fprintf(stderr,"Getting mount list.\n"); 3091558Srgrimes get_mountlist(); 3101558Srgrimes if (debug) 3111558Srgrimes fprintf(stderr,"Here we go.\n"); 3121558Srgrimes if (debug == 0) { 3131558Srgrimes daemon(0, 0); 3141558Srgrimes signal(SIGINT, SIG_IGN); 3151558Srgrimes signal(SIGQUIT, SIG_IGN); 3161558Srgrimes } 3171558Srgrimes signal(SIGHUP, (void (*) __P((int))) get_exportlist); 3181558Srgrimes signal(SIGTERM, (void (*) __P((int))) send_umntall); 3191558Srgrimes { FILE *pidfile = fopen(_PATH_MOUNTDPID, "w"); 3201558Srgrimes if (pidfile != NULL) { 3211558Srgrimes fprintf(pidfile, "%d\n", getpid()); 3221558Srgrimes fclose(pidfile); 3231558Srgrimes } 3241558Srgrimes } 32524330Sguido 32624759Sguido if (!resvport_only) { 32724759Sguido mib[0] = CTL_VFS; 32824759Sguido mib[1] = MOUNT_NFS; 32924759Sguido mib[2] = NFS_NFSPRIVPORT; 33024759Sguido if (sysctl(mib, 3, NULL, NULL, &resvport_only, 33124759Sguido sizeof(resvport_only)) != 0 && errno != ENOENT) { 33224759Sguido syslog(LOG_ERR, "sysctl: %m"); 33324759Sguido exit(1); 33424759Sguido } 33524330Sguido } 33624330Sguido 3379202Srgrimes if ((udptransp = svcudp_create(RPC_ANYSOCK)) == NULL || 3389202Srgrimes (tcptransp = svctcp_create(RPC_ANYSOCK, 0, 0)) == NULL) { 3391558Srgrimes syslog(LOG_ERR, "Can't create socket"); 3401558Srgrimes exit(1); 3411558Srgrimes } 3429336Sdfr pmap_unset(RPCPROG_MNT, 1); 3439336Sdfr pmap_unset(RPCPROG_MNT, 3); 34425087Sdfr if (!force_v2) 34525087Sdfr if (!svc_register(udptransp, RPCPROG_MNT, 3, mntsrv, IPPROTO_UDP) || 34625087Sdfr !svc_register(tcptransp, RPCPROG_MNT, 3, mntsrv, IPPROTO_TCP)) { 34725087Sdfr syslog(LOG_ERR, "Can't register mount"); 34825087Sdfr exit(1); 34925087Sdfr } 3509336Sdfr if (!svc_register(udptransp, RPCPROG_MNT, 1, mntsrv, IPPROTO_UDP) || 35125087Sdfr !svc_register(tcptransp, RPCPROG_MNT, 1, mntsrv, IPPROTO_TCP)) { 3521558Srgrimes syslog(LOG_ERR, "Can't register mount"); 3531558Srgrimes exit(1); 3541558Srgrimes } 3551558Srgrimes svc_run(); 3561558Srgrimes syslog(LOG_ERR, "Mountd died"); 3571558Srgrimes exit(1); 3581558Srgrimes} 3591558Srgrimes 3601558Srgrimes/* 3611558Srgrimes * The mount rpc service 3621558Srgrimes */ 3631558Srgrimesvoid 3641558Srgrimesmntsrv(rqstp, transp) 3651558Srgrimes struct svc_req *rqstp; 3661558Srgrimes SVCXPRT *transp; 3671558Srgrimes{ 3681558Srgrimes struct exportlist *ep; 3691558Srgrimes struct dirlist *dp; 3709336Sdfr struct fhreturn fhr; 3711558Srgrimes struct stat stb; 3721558Srgrimes struct statfs fsb; 3731558Srgrimes struct hostent *hp; 3741558Srgrimes u_long saddr; 3759336Sdfr u_short sport; 37623681Speter char rpcpath[RPCMNT_PATHLEN + 1], dirpath[MAXPATHLEN]; 37728911Sguido int bad = 0, defset, hostset; 3789336Sdfr sigset_t sighup_mask; 3791558Srgrimes 3809336Sdfr sigemptyset(&sighup_mask); 3819336Sdfr sigaddset(&sighup_mask, SIGHUP); 3821558Srgrimes saddr = transp->xp_raddr.sin_addr.s_addr; 3839336Sdfr sport = ntohs(transp->xp_raddr.sin_port); 3841558Srgrimes hp = (struct hostent *)NULL; 3851558Srgrimes switch (rqstp->rq_proc) { 3861558Srgrimes case NULLPROC: 3871558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 3881558Srgrimes syslog(LOG_ERR, "Can't send reply"); 3891558Srgrimes return; 3901558Srgrimes case RPCMNT_MOUNT: 3919336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 3921558Srgrimes svcerr_weakauth(transp); 3931558Srgrimes return; 3941558Srgrimes } 3951558Srgrimes if (!svc_getargs(transp, xdr_dir, rpcpath)) { 3961558Srgrimes svcerr_decode(transp); 3971558Srgrimes return; 3981558Srgrimes } 3991558Srgrimes 4001558Srgrimes /* 4011558Srgrimes * Get the real pathname and make sure it is a directory 4029336Sdfr * or a regular file if the -r option was specified 4039336Sdfr * and it exists. 4041558Srgrimes */ 4051558Srgrimes if (realpath(rpcpath, dirpath) == 0 || 4061558Srgrimes stat(dirpath, &stb) < 0 || 4079336Sdfr (!S_ISDIR(stb.st_mode) && 4089336Sdfr (dir_only || !S_ISREG(stb.st_mode))) || 4091558Srgrimes statfs(dirpath, &fsb) < 0) { 4101558Srgrimes chdir("/"); /* Just in case realpath doesn't */ 4111558Srgrimes if (debug) 4121558Srgrimes fprintf(stderr, "stat failed on %s\n", dirpath); 41328911Sguido bad = ENOENT; /* We will send error reply later */ 4141558Srgrimes } 4151558Srgrimes 4161558Srgrimes /* Check in the exports list */ 4179336Sdfr sigprocmask(SIG_BLOCK, &sighup_mask, NULL); 4181558Srgrimes ep = ex_search(&fsb.f_fsid); 4199336Sdfr hostset = defset = 0; 4209336Sdfr if (ep && (chk_host(ep->ex_defdir, saddr, &defset, &hostset) || 4211558Srgrimes ((dp = dirp_search(ep->ex_dirl, dirpath)) && 4229336Sdfr chk_host(dp, saddr, &defset, &hostset)) || 4231558Srgrimes (defset && scan_tree(ep->ex_defdir, saddr) == 0 && 4241558Srgrimes scan_tree(ep->ex_dirl, saddr) == 0))) { 42528911Sguido if (bad) { 42628911Sguido if (!svc_sendreply(transp, xdr_long, 42728911Sguido (caddr_t)&bad)) 42828911Sguido syslog(LOG_ERR, "Can't send reply"); 42928911Sguido sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 43028911Sguido return; 43128911Sguido } 4329336Sdfr if (hostset & DP_HOSTSET) 4339336Sdfr fhr.fhr_flag = hostset; 4349336Sdfr else 4359336Sdfr fhr.fhr_flag = defset; 4369336Sdfr fhr.fhr_vers = rqstp->rq_vers; 4371558Srgrimes /* Get the file handle */ 43823681Speter memset(&fhr.fhr_fh, 0, sizeof(nfsfh_t)); 4399336Sdfr if (getfh(dirpath, (fhandle_t *)&fhr.fhr_fh) < 0) { 4401558Srgrimes bad = errno; 4411558Srgrimes syslog(LOG_ERR, "Can't get fh for %s", dirpath); 4421558Srgrimes if (!svc_sendreply(transp, xdr_long, 4431558Srgrimes (caddr_t)&bad)) 4441558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4459336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 4461558Srgrimes return; 4471558Srgrimes } 4489336Sdfr if (!svc_sendreply(transp, xdr_fhs, (caddr_t)&fhr)) 4491558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4501558Srgrimes if (hp == NULL) 4511558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, 4521558Srgrimes sizeof(saddr), AF_INET); 4531558Srgrimes if (hp) 4541558Srgrimes add_mlist(hp->h_name, dirpath); 4551558Srgrimes else 4561558Srgrimes add_mlist(inet_ntoa(transp->xp_raddr.sin_addr), 4571558Srgrimes dirpath); 4581558Srgrimes if (debug) 4591558Srgrimes fprintf(stderr,"Mount successfull.\n"); 46028911Sguido } else 4611558Srgrimes bad = EACCES; 46228911Sguido 46328911Sguido if (bad && !svc_sendreply(transp, xdr_long, (caddr_t)&bad)) 46428911Sguido syslog(LOG_ERR, "Can't send reply"); 4659336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 4661558Srgrimes return; 4671558Srgrimes case RPCMNT_DUMP: 4681558Srgrimes if (!svc_sendreply(transp, xdr_mlist, (caddr_t)NULL)) 4691558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4701558Srgrimes return; 4711558Srgrimes case RPCMNT_UMOUNT: 4729336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 4731558Srgrimes svcerr_weakauth(transp); 4741558Srgrimes return; 4751558Srgrimes } 4761558Srgrimes if (!svc_getargs(transp, xdr_dir, dirpath)) { 4771558Srgrimes svcerr_decode(transp); 4781558Srgrimes return; 4791558Srgrimes } 4801558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 4811558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4821558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET); 4831558Srgrimes if (hp) 4841558Srgrimes del_mlist(hp->h_name, dirpath); 4851558Srgrimes del_mlist(inet_ntoa(transp->xp_raddr.sin_addr), dirpath); 4861558Srgrimes return; 4871558Srgrimes case RPCMNT_UMNTALL: 4889336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 4891558Srgrimes svcerr_weakauth(transp); 4901558Srgrimes return; 4911558Srgrimes } 4921558Srgrimes if (!svc_sendreply(transp, xdr_void, (caddr_t)NULL)) 4931558Srgrimes syslog(LOG_ERR, "Can't send reply"); 4941558Srgrimes hp = gethostbyaddr((caddr_t)&saddr, sizeof(saddr), AF_INET); 4951558Srgrimes if (hp) 4961558Srgrimes del_mlist(hp->h_name, (char *)NULL); 4971558Srgrimes del_mlist(inet_ntoa(transp->xp_raddr.sin_addr), (char *)NULL); 4981558Srgrimes return; 4991558Srgrimes case RPCMNT_EXPORT: 5001558Srgrimes if (!svc_sendreply(transp, xdr_explist, (caddr_t)NULL)) 5011558Srgrimes syslog(LOG_ERR, "Can't send reply"); 5021558Srgrimes return; 5031558Srgrimes default: 5041558Srgrimes svcerr_noproc(transp); 5051558Srgrimes return; 5061558Srgrimes } 5071558Srgrimes} 5081558Srgrimes 5091558Srgrimes/* 5101558Srgrimes * Xdr conversion for a dirpath string 5111558Srgrimes */ 5121558Srgrimesint 5131558Srgrimesxdr_dir(xdrsp, dirp) 5141558Srgrimes XDR *xdrsp; 5151558Srgrimes char *dirp; 5161558Srgrimes{ 5171558Srgrimes return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN)); 5181558Srgrimes} 5191558Srgrimes 5201558Srgrimes/* 5219336Sdfr * Xdr routine to generate file handle reply 5221558Srgrimes */ 5231558Srgrimesint 5249336Sdfrxdr_fhs(xdrsp, cp) 5251558Srgrimes XDR *xdrsp; 5269336Sdfr caddr_t cp; 5271558Srgrimes{ 5289336Sdfr register struct fhreturn *fhrp = (struct fhreturn *)cp; 5299336Sdfr u_long ok = 0, len, auth; 5301558Srgrimes 5311558Srgrimes if (!xdr_long(xdrsp, &ok)) 5321558Srgrimes return (0); 5339336Sdfr switch (fhrp->fhr_vers) { 5349336Sdfr case 1: 5359336Sdfr return (xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, NFSX_V2FH)); 5369336Sdfr case 3: 5379336Sdfr len = NFSX_V3FH; 5389336Sdfr if (!xdr_long(xdrsp, &len)) 5399336Sdfr return (0); 5409336Sdfr if (!xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, len)) 5419336Sdfr return (0); 5429336Sdfr if (fhrp->fhr_flag & DP_KERB) 5439336Sdfr auth = RPCAUTH_KERB4; 5449336Sdfr else 5459336Sdfr auth = RPCAUTH_UNIX; 5469336Sdfr len = 1; 5479336Sdfr if (!xdr_long(xdrsp, &len)) 5489336Sdfr return (0); 5499336Sdfr return (xdr_long(xdrsp, &auth)); 5509336Sdfr }; 5519336Sdfr return (0); 5521558Srgrimes} 5531558Srgrimes 5541558Srgrimesint 5551558Srgrimesxdr_mlist(xdrsp, cp) 5561558Srgrimes XDR *xdrsp; 5571558Srgrimes caddr_t cp; 5581558Srgrimes{ 5591558Srgrimes struct mountlist *mlp; 5601558Srgrimes int true = 1; 5611558Srgrimes int false = 0; 5621558Srgrimes char *strp; 5631558Srgrimes 5641558Srgrimes mlp = mlhead; 5651558Srgrimes while (mlp) { 5661558Srgrimes if (!xdr_bool(xdrsp, &true)) 5671558Srgrimes return (0); 5681558Srgrimes strp = &mlp->ml_host[0]; 5691558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN)) 5701558Srgrimes return (0); 5711558Srgrimes strp = &mlp->ml_dirp[0]; 5721558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 5731558Srgrimes return (0); 5741558Srgrimes mlp = mlp->ml_next; 5751558Srgrimes } 5761558Srgrimes if (!xdr_bool(xdrsp, &false)) 5771558Srgrimes return (0); 5781558Srgrimes return (1); 5791558Srgrimes} 5801558Srgrimes 5811558Srgrimes/* 5821558Srgrimes * Xdr conversion for export list 5831558Srgrimes */ 5841558Srgrimesint 5851558Srgrimesxdr_explist(xdrsp, cp) 5861558Srgrimes XDR *xdrsp; 5871558Srgrimes caddr_t cp; 5881558Srgrimes{ 5891558Srgrimes struct exportlist *ep; 5901558Srgrimes int false = 0; 5919336Sdfr int putdef; 5929336Sdfr sigset_t sighup_mask; 5931558Srgrimes 5949336Sdfr sigemptyset(&sighup_mask); 5959336Sdfr sigaddset(&sighup_mask, SIGHUP); 5969336Sdfr sigprocmask(SIG_BLOCK, &sighup_mask, NULL); 5971558Srgrimes ep = exphead; 5981558Srgrimes while (ep) { 5991558Srgrimes putdef = 0; 6001558Srgrimes if (put_exlist(ep->ex_dirl, xdrsp, ep->ex_defdir, &putdef)) 6011558Srgrimes goto errout; 6021558Srgrimes if (ep->ex_defdir && putdef == 0 && 6031558Srgrimes put_exlist(ep->ex_defdir, xdrsp, (struct dirlist *)NULL, 6041558Srgrimes &putdef)) 6051558Srgrimes goto errout; 6061558Srgrimes ep = ep->ex_next; 6071558Srgrimes } 6089336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 6091558Srgrimes if (!xdr_bool(xdrsp, &false)) 6101558Srgrimes return (0); 6111558Srgrimes return (1); 6121558Srgrimeserrout: 6139336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 6141558Srgrimes return (0); 6151558Srgrimes} 6161558Srgrimes 6171558Srgrimes/* 6181558Srgrimes * Called from xdr_explist() to traverse the tree and export the 6191558Srgrimes * directory paths. 6201558Srgrimes */ 6211558Srgrimesint 6221558Srgrimesput_exlist(dp, xdrsp, adp, putdefp) 6231558Srgrimes struct dirlist *dp; 6241558Srgrimes XDR *xdrsp; 6251558Srgrimes struct dirlist *adp; 6261558Srgrimes int *putdefp; 6271558Srgrimes{ 6281558Srgrimes struct grouplist *grp; 6291558Srgrimes struct hostlist *hp; 6301558Srgrimes int true = 1; 6311558Srgrimes int false = 0; 6321558Srgrimes int gotalldir = 0; 6331558Srgrimes char *strp; 6341558Srgrimes 6351558Srgrimes if (dp) { 6361558Srgrimes if (put_exlist(dp->dp_left, xdrsp, adp, putdefp)) 6371558Srgrimes return (1); 6381558Srgrimes if (!xdr_bool(xdrsp, &true)) 6391558Srgrimes return (1); 6401558Srgrimes strp = dp->dp_dirp; 6411558Srgrimes if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN)) 6421558Srgrimes return (1); 6431558Srgrimes if (adp && !strcmp(dp->dp_dirp, adp->dp_dirp)) { 6441558Srgrimes gotalldir = 1; 6451558Srgrimes *putdefp = 1; 6461558Srgrimes } 6471558Srgrimes if ((dp->dp_flag & DP_DEFSET) == 0 && 6481558Srgrimes (gotalldir == 0 || (adp->dp_flag & DP_DEFSET) == 0)) { 6491558Srgrimes hp = dp->dp_hosts; 6501558Srgrimes while (hp) { 6511558Srgrimes grp = hp->ht_grp; 6521558Srgrimes if (grp->gr_type == GT_HOST) { 6531558Srgrimes if (!xdr_bool(xdrsp, &true)) 6541558Srgrimes return (1); 6551558Srgrimes strp = grp->gr_ptr.gt_hostent->h_name; 6568871Srgrimes if (!xdr_string(xdrsp, &strp, 6571558Srgrimes RPCMNT_NAMELEN)) 6581558Srgrimes return (1); 6591558Srgrimes } else if (grp->gr_type == GT_NET) { 6601558Srgrimes if (!xdr_bool(xdrsp, &true)) 6611558Srgrimes return (1); 6621558Srgrimes strp = grp->gr_ptr.gt_net.nt_name; 6638871Srgrimes if (!xdr_string(xdrsp, &strp, 6641558Srgrimes RPCMNT_NAMELEN)) 6651558Srgrimes return (1); 6661558Srgrimes } 6671558Srgrimes hp = hp->ht_next; 6681558Srgrimes if (gotalldir && hp == (struct hostlist *)NULL) { 6691558Srgrimes hp = adp->dp_hosts; 6701558Srgrimes gotalldir = 0; 6711558Srgrimes } 6721558Srgrimes } 6731558Srgrimes } 6741558Srgrimes if (!xdr_bool(xdrsp, &false)) 6751558Srgrimes return (1); 6761558Srgrimes if (put_exlist(dp->dp_right, xdrsp, adp, putdefp)) 6771558Srgrimes return (1); 6781558Srgrimes } 6791558Srgrimes return (0); 6801558Srgrimes} 6811558Srgrimes 6821558Srgrimes#define LINESIZ 10240 6831558Srgrimeschar line[LINESIZ]; 6841558SrgrimesFILE *exp_file; 6851558Srgrimes 6861558Srgrimes/* 6871558Srgrimes * Get the export list 6881558Srgrimes */ 6891558Srgrimesvoid 6901558Srgrimesget_exportlist() 6911558Srgrimes{ 6921558Srgrimes struct exportlist *ep, *ep2; 6931558Srgrimes struct grouplist *grp, *tgrp; 6941558Srgrimes struct exportlist **epp; 6951558Srgrimes struct dirlist *dirhead; 6961558Srgrimes struct statfs fsb, *fsp; 6971558Srgrimes struct hostent *hpe; 6981558Srgrimes struct ucred anon; 6991558Srgrimes char *cp, *endcp, *dirp, *hst, *usr, *dom, savedc; 7001558Srgrimes int len, has_host, exflags, got_nondir, dirplen, num, i, netgrp; 7011558Srgrimes 7021558Srgrimes /* 7031558Srgrimes * First, get rid of the old list 7041558Srgrimes */ 7051558Srgrimes ep = exphead; 7061558Srgrimes while (ep) { 7071558Srgrimes ep2 = ep; 7081558Srgrimes ep = ep->ex_next; 7091558Srgrimes free_exp(ep2); 7101558Srgrimes } 7111558Srgrimes exphead = (struct exportlist *)NULL; 7121558Srgrimes 7131558Srgrimes grp = grphead; 7141558Srgrimes while (grp) { 7151558Srgrimes tgrp = grp; 7161558Srgrimes grp = grp->gr_next; 7171558Srgrimes free_grp(tgrp); 7181558Srgrimes } 7191558Srgrimes grphead = (struct grouplist *)NULL; 7201558Srgrimes 7211558Srgrimes /* 7221558Srgrimes * And delete exports that are in the kernel for all local 7231558Srgrimes * file systems. 7241558Srgrimes * XXX: Should know how to handle all local exportable file systems 72523681Speter * instead of just "ufs". 7261558Srgrimes */ 7271558Srgrimes num = getmntinfo(&fsp, MNT_NOWAIT); 7281558Srgrimes for (i = 0; i < num; i++) { 7291558Srgrimes union { 7301558Srgrimes struct ufs_args ua; 7311558Srgrimes struct iso_args ia; 7321558Srgrimes struct mfs_args ma; 7339336Sdfr struct msdosfs_args da; 7341558Srgrimes } targs; 7351558Srgrimes 73623681Speter if (!strcmp(fsp->f_fstypename, "mfs") || 73723681Speter !strcmp(fsp->f_fstypename, "ufs") || 73823681Speter !strcmp(fsp->f_fstypename, "msdos") || 73923681Speter !strcmp(fsp->f_fstypename, "cd9660")) { 7409336Sdfr targs.ua.fspec = NULL; 7419336Sdfr targs.ua.export.ex_flags = MNT_DELEXPORT; 7429336Sdfr if (mount(fsp->f_fstypename, fsp->f_mntonname, 7431558Srgrimes fsp->f_flags | MNT_UPDATE, 7441558Srgrimes (caddr_t)&targs) < 0) 7451558Srgrimes syslog(LOG_ERR, "Can't delete exports for %s", 7461558Srgrimes fsp->f_mntonname); 7471558Srgrimes } 7481558Srgrimes fsp++; 7491558Srgrimes } 7501558Srgrimes 7511558Srgrimes /* 7521558Srgrimes * Read in the exports file and build the list, calling 7531558Srgrimes * mount() as we go along to push the export rules into the kernel. 7541558Srgrimes */ 7551558Srgrimes if ((exp_file = fopen(exname, "r")) == NULL) { 7561558Srgrimes syslog(LOG_ERR, "Can't open %s", exname); 7571558Srgrimes exit(2); 7581558Srgrimes } 7591558Srgrimes dirhead = (struct dirlist *)NULL; 7601558Srgrimes while (get_line()) { 7611558Srgrimes if (debug) 7621558Srgrimes fprintf(stderr,"Got line %s\n",line); 7631558Srgrimes cp = line; 7641558Srgrimes nextfield(&cp, &endcp); 7651558Srgrimes if (*cp == '#') 7661558Srgrimes goto nextline; 7671558Srgrimes 7681558Srgrimes /* 7691558Srgrimes * Set defaults. 7701558Srgrimes */ 7711558Srgrimes has_host = FALSE; 7721558Srgrimes anon = def_anon; 7731558Srgrimes exflags = MNT_EXPORTED; 7741558Srgrimes got_nondir = 0; 7751558Srgrimes opt_flags = 0; 7761558Srgrimes ep = (struct exportlist *)NULL; 7771558Srgrimes 7781558Srgrimes /* 7791558Srgrimes * Create new exports list entry 7801558Srgrimes */ 7811558Srgrimes len = endcp-cp; 7821558Srgrimes tgrp = grp = get_grp(); 7831558Srgrimes while (len > 0) { 7841558Srgrimes if (len > RPCMNT_NAMELEN) { 7851558Srgrimes getexp_err(ep, tgrp); 7861558Srgrimes goto nextline; 7871558Srgrimes } 7881558Srgrimes if (*cp == '-') { 7891558Srgrimes if (ep == (struct exportlist *)NULL) { 7901558Srgrimes getexp_err(ep, tgrp); 7911558Srgrimes goto nextline; 7921558Srgrimes } 7931558Srgrimes if (debug) 7941558Srgrimes fprintf(stderr, "doing opt %s\n", cp); 7951558Srgrimes got_nondir = 1; 7961558Srgrimes if (do_opt(&cp, &endcp, ep, grp, &has_host, 7971558Srgrimes &exflags, &anon)) { 7981558Srgrimes getexp_err(ep, tgrp); 7991558Srgrimes goto nextline; 8001558Srgrimes } 8011558Srgrimes } else if (*cp == '/') { 8021558Srgrimes savedc = *endcp; 8031558Srgrimes *endcp = '\0'; 8041558Srgrimes if (check_dirpath(cp) && 8051558Srgrimes statfs(cp, &fsb) >= 0) { 8061558Srgrimes if (got_nondir) { 8071558Srgrimes syslog(LOG_ERR, "Dirs must be first"); 8081558Srgrimes getexp_err(ep, tgrp); 8091558Srgrimes goto nextline; 8101558Srgrimes } 8111558Srgrimes if (ep) { 8121558Srgrimes if (ep->ex_fs.val[0] != fsb.f_fsid.val[0] || 8131558Srgrimes ep->ex_fs.val[1] != fsb.f_fsid.val[1]) { 8141558Srgrimes getexp_err(ep, tgrp); 8151558Srgrimes goto nextline; 8161558Srgrimes } 8171558Srgrimes } else { 8181558Srgrimes /* 8191558Srgrimes * See if this directory is already 8201558Srgrimes * in the list. 8211558Srgrimes */ 8221558Srgrimes ep = ex_search(&fsb.f_fsid); 8231558Srgrimes if (ep == (struct exportlist *)NULL) { 8241558Srgrimes ep = get_exp(); 8251558Srgrimes ep->ex_fs = fsb.f_fsid; 8261558Srgrimes ep->ex_fsdir = (char *) 8271558Srgrimes malloc(strlen(fsb.f_mntonname) + 1); 8281558Srgrimes if (ep->ex_fsdir) 8291558Srgrimes strcpy(ep->ex_fsdir, 8301558Srgrimes fsb.f_mntonname); 8311558Srgrimes else 8321558Srgrimes out_of_mem(); 8331558Srgrimes if (debug) 8341558Srgrimes fprintf(stderr, 8351558Srgrimes "Making new ep fs=0x%x,0x%x\n", 8361558Srgrimes fsb.f_fsid.val[0], 8371558Srgrimes fsb.f_fsid.val[1]); 8381558Srgrimes } else if (debug) 8391558Srgrimes fprintf(stderr, 8401558Srgrimes "Found ep fs=0x%x,0x%x\n", 8411558Srgrimes fsb.f_fsid.val[0], 8421558Srgrimes fsb.f_fsid.val[1]); 8431558Srgrimes } 8441558Srgrimes 8451558Srgrimes /* 8461558Srgrimes * Add dirpath to export mount point. 8471558Srgrimes */ 8481558Srgrimes dirp = add_expdir(&dirhead, cp, len); 8491558Srgrimes dirplen = len; 8501558Srgrimes } else { 8511558Srgrimes getexp_err(ep, tgrp); 8521558Srgrimes goto nextline; 8531558Srgrimes } 8541558Srgrimes *endcp = savedc; 8551558Srgrimes } else { 8561558Srgrimes savedc = *endcp; 8571558Srgrimes *endcp = '\0'; 8581558Srgrimes got_nondir = 1; 8591558Srgrimes if (ep == (struct exportlist *)NULL) { 8601558Srgrimes getexp_err(ep, tgrp); 8611558Srgrimes goto nextline; 8621558Srgrimes } 8631558Srgrimes 8641558Srgrimes /* 8651558Srgrimes * Get the host or netgroup. 8661558Srgrimes */ 8671558Srgrimes setnetgrent(cp); 8681558Srgrimes netgrp = getnetgrent(&hst, &usr, &dom); 8691558Srgrimes do { 8701558Srgrimes if (has_host) { 8711558Srgrimes grp->gr_next = get_grp(); 8721558Srgrimes grp = grp->gr_next; 8731558Srgrimes } 8741558Srgrimes if (netgrp) { 8757401Swpaul if (get_host(hst, grp, tgrp)) { 8761558Srgrimes syslog(LOG_ERR, "Bad netgroup %s", cp); 8771558Srgrimes getexp_err(ep, tgrp); 8789336Sdfr endnetgrent(); 8791558Srgrimes goto nextline; 8801558Srgrimes } 8817401Swpaul } else if (get_host(cp, grp, tgrp)) { 8821558Srgrimes getexp_err(ep, tgrp); 8831558Srgrimes goto nextline; 8841558Srgrimes } 8851558Srgrimes has_host = TRUE; 8861558Srgrimes } while (netgrp && getnetgrent(&hst, &usr, &dom)); 8871558Srgrimes endnetgrent(); 8881558Srgrimes *endcp = savedc; 8891558Srgrimes } 8901558Srgrimes cp = endcp; 8911558Srgrimes nextfield(&cp, &endcp); 8921558Srgrimes len = endcp - cp; 8931558Srgrimes } 8941558Srgrimes if (check_options(dirhead)) { 8951558Srgrimes getexp_err(ep, tgrp); 8961558Srgrimes goto nextline; 8971558Srgrimes } 8981558Srgrimes if (!has_host) { 8991558Srgrimes grp->gr_type = GT_HOST; 9001558Srgrimes if (debug) 9011558Srgrimes fprintf(stderr,"Adding a default entry\n"); 9021558Srgrimes /* add a default group and make the grp list NULL */ 9031558Srgrimes hpe = (struct hostent *)malloc(sizeof(struct hostent)); 9041558Srgrimes if (hpe == (struct hostent *)NULL) 9051558Srgrimes out_of_mem(); 90612348Sjoerg hpe->h_name = strdup("Default"); 9071558Srgrimes hpe->h_addrtype = AF_INET; 9081558Srgrimes hpe->h_length = sizeof (u_long); 9091558Srgrimes hpe->h_addr_list = (char **)NULL; 9101558Srgrimes grp->gr_ptr.gt_hostent = hpe; 9111558Srgrimes 9121558Srgrimes /* 9131558Srgrimes * Don't allow a network export coincide with a list of 9141558Srgrimes * host(s) on the same line. 9151558Srgrimes */ 9161558Srgrimes } else if ((opt_flags & OP_NET) && tgrp->gr_next) { 9171558Srgrimes getexp_err(ep, tgrp); 9181558Srgrimes goto nextline; 9191558Srgrimes } 9201558Srgrimes 9211558Srgrimes /* 9221558Srgrimes * Loop through hosts, pushing the exports into the kernel. 9231558Srgrimes * After loop, tgrp points to the start of the list and 9241558Srgrimes * grp points to the last entry in the list. 9251558Srgrimes */ 9261558Srgrimes grp = tgrp; 9271558Srgrimes do { 9281558Srgrimes if (do_mount(ep, grp, exflags, &anon, dirp, 9291558Srgrimes dirplen, &fsb)) { 9301558Srgrimes getexp_err(ep, tgrp); 9311558Srgrimes goto nextline; 9321558Srgrimes } 9331558Srgrimes } while (grp->gr_next && (grp = grp->gr_next)); 9341558Srgrimes 9351558Srgrimes /* 9361558Srgrimes * Success. Update the data structures. 9371558Srgrimes */ 9381558Srgrimes if (has_host) { 9399336Sdfr hang_dirp(dirhead, tgrp, ep, opt_flags); 9401558Srgrimes grp->gr_next = grphead; 9411558Srgrimes grphead = tgrp; 9421558Srgrimes } else { 9431558Srgrimes hang_dirp(dirhead, (struct grouplist *)NULL, ep, 9449336Sdfr opt_flags); 9451558Srgrimes free_grp(grp); 9461558Srgrimes } 9471558Srgrimes dirhead = (struct dirlist *)NULL; 9481558Srgrimes if ((ep->ex_flag & EX_LINKED) == 0) { 9491558Srgrimes ep2 = exphead; 9501558Srgrimes epp = &exphead; 9511558Srgrimes 9521558Srgrimes /* 9531558Srgrimes * Insert in the list in alphabetical order. 9541558Srgrimes */ 9551558Srgrimes while (ep2 && strcmp(ep2->ex_fsdir, ep->ex_fsdir) < 0) { 9561558Srgrimes epp = &ep2->ex_next; 9571558Srgrimes ep2 = ep2->ex_next; 9581558Srgrimes } 9591558Srgrimes if (ep2) 9601558Srgrimes ep->ex_next = ep2; 9611558Srgrimes *epp = ep; 9621558Srgrimes ep->ex_flag |= EX_LINKED; 9631558Srgrimes } 9641558Srgrimesnextline: 9651558Srgrimes if (dirhead) { 9661558Srgrimes free_dir(dirhead); 9671558Srgrimes dirhead = (struct dirlist *)NULL; 9681558Srgrimes } 9691558Srgrimes } 9701558Srgrimes fclose(exp_file); 9711558Srgrimes} 9721558Srgrimes 9731558Srgrimes/* 9741558Srgrimes * Allocate an export list element 9751558Srgrimes */ 9761558Srgrimesstruct exportlist * 9771558Srgrimesget_exp() 9781558Srgrimes{ 9791558Srgrimes struct exportlist *ep; 9801558Srgrimes 9811558Srgrimes ep = (struct exportlist *)malloc(sizeof (struct exportlist)); 9821558Srgrimes if (ep == (struct exportlist *)NULL) 9831558Srgrimes out_of_mem(); 98423681Speter memset(ep, 0, sizeof(struct exportlist)); 9851558Srgrimes return (ep); 9861558Srgrimes} 9871558Srgrimes 9881558Srgrimes/* 9891558Srgrimes * Allocate a group list element 9901558Srgrimes */ 9911558Srgrimesstruct grouplist * 9921558Srgrimesget_grp() 9931558Srgrimes{ 9941558Srgrimes struct grouplist *gp; 9951558Srgrimes 9961558Srgrimes gp = (struct grouplist *)malloc(sizeof (struct grouplist)); 9971558Srgrimes if (gp == (struct grouplist *)NULL) 9981558Srgrimes out_of_mem(); 99923681Speter memset(gp, 0, sizeof(struct grouplist)); 10001558Srgrimes return (gp); 10011558Srgrimes} 10021558Srgrimes 10031558Srgrimes/* 10041558Srgrimes * Clean up upon an error in get_exportlist(). 10051558Srgrimes */ 10061558Srgrimesvoid 10071558Srgrimesgetexp_err(ep, grp) 10081558Srgrimes struct exportlist *ep; 10091558Srgrimes struct grouplist *grp; 10101558Srgrimes{ 10111558Srgrimes struct grouplist *tgrp; 10121558Srgrimes 10131558Srgrimes syslog(LOG_ERR, "Bad exports list line %s", line); 10141558Srgrimes if (ep && (ep->ex_flag & EX_LINKED) == 0) 10151558Srgrimes free_exp(ep); 10161558Srgrimes while (grp) { 10171558Srgrimes tgrp = grp; 10181558Srgrimes grp = grp->gr_next; 10191558Srgrimes free_grp(tgrp); 10201558Srgrimes } 10211558Srgrimes} 10221558Srgrimes 10231558Srgrimes/* 10241558Srgrimes * Search the export list for a matching fs. 10251558Srgrimes */ 10261558Srgrimesstruct exportlist * 10271558Srgrimesex_search(fsid) 10281558Srgrimes fsid_t *fsid; 10291558Srgrimes{ 10301558Srgrimes struct exportlist *ep; 10311558Srgrimes 10321558Srgrimes ep = exphead; 10331558Srgrimes while (ep) { 10341558Srgrimes if (ep->ex_fs.val[0] == fsid->val[0] && 10351558Srgrimes ep->ex_fs.val[1] == fsid->val[1]) 10361558Srgrimes return (ep); 10371558Srgrimes ep = ep->ex_next; 10381558Srgrimes } 10391558Srgrimes return (ep); 10401558Srgrimes} 10411558Srgrimes 10421558Srgrimes/* 10431558Srgrimes * Add a directory path to the list. 10441558Srgrimes */ 10451558Srgrimeschar * 10461558Srgrimesadd_expdir(dpp, cp, len) 10471558Srgrimes struct dirlist **dpp; 10481558Srgrimes char *cp; 10491558Srgrimes int len; 10501558Srgrimes{ 10511558Srgrimes struct dirlist *dp; 10521558Srgrimes 10531558Srgrimes dp = (struct dirlist *)malloc(sizeof (struct dirlist) + len); 10541558Srgrimes dp->dp_left = *dpp; 10551558Srgrimes dp->dp_right = (struct dirlist *)NULL; 10561558Srgrimes dp->dp_flag = 0; 10571558Srgrimes dp->dp_hosts = (struct hostlist *)NULL; 10581558Srgrimes strcpy(dp->dp_dirp, cp); 10591558Srgrimes *dpp = dp; 10601558Srgrimes return (dp->dp_dirp); 10611558Srgrimes} 10621558Srgrimes 10631558Srgrimes/* 10641558Srgrimes * Hang the dir list element off the dirpath binary tree as required 10651558Srgrimes * and update the entry for host. 10661558Srgrimes */ 10671558Srgrimesvoid 10689336Sdfrhang_dirp(dp, grp, ep, flags) 10691558Srgrimes struct dirlist *dp; 10701558Srgrimes struct grouplist *grp; 10711558Srgrimes struct exportlist *ep; 10729336Sdfr int flags; 10731558Srgrimes{ 10741558Srgrimes struct hostlist *hp; 10751558Srgrimes struct dirlist *dp2; 10761558Srgrimes 10779336Sdfr if (flags & OP_ALLDIRS) { 10781558Srgrimes if (ep->ex_defdir) 10791558Srgrimes free((caddr_t)dp); 10801558Srgrimes else 10811558Srgrimes ep->ex_defdir = dp; 10829336Sdfr if (grp == (struct grouplist *)NULL) { 10831558Srgrimes ep->ex_defdir->dp_flag |= DP_DEFSET; 10849336Sdfr if (flags & OP_KERB) 10859336Sdfr ep->ex_defdir->dp_flag |= DP_KERB; 10869336Sdfr } else while (grp) { 10871558Srgrimes hp = get_ht(); 10889336Sdfr if (flags & OP_KERB) 10899336Sdfr hp->ht_flag |= DP_KERB; 10901558Srgrimes hp->ht_grp = grp; 10911558Srgrimes hp->ht_next = ep->ex_defdir->dp_hosts; 10921558Srgrimes ep->ex_defdir->dp_hosts = hp; 10931558Srgrimes grp = grp->gr_next; 10941558Srgrimes } 10951558Srgrimes } else { 10961558Srgrimes 10971558Srgrimes /* 10981558Srgrimes * Loop throught the directories adding them to the tree. 10991558Srgrimes */ 11001558Srgrimes while (dp) { 11011558Srgrimes dp2 = dp->dp_left; 11029336Sdfr add_dlist(&ep->ex_dirl, dp, grp, flags); 11031558Srgrimes dp = dp2; 11041558Srgrimes } 11051558Srgrimes } 11061558Srgrimes} 11071558Srgrimes 11081558Srgrimes/* 11091558Srgrimes * Traverse the binary tree either updating a node that is already there 11101558Srgrimes * for the new directory or adding the new node. 11111558Srgrimes */ 11121558Srgrimesvoid 11139336Sdfradd_dlist(dpp, newdp, grp, flags) 11141558Srgrimes struct dirlist **dpp; 11151558Srgrimes struct dirlist *newdp; 11161558Srgrimes struct grouplist *grp; 11179336Sdfr int flags; 11181558Srgrimes{ 11191558Srgrimes struct dirlist *dp; 11201558Srgrimes struct hostlist *hp; 11211558Srgrimes int cmp; 11221558Srgrimes 11231558Srgrimes dp = *dpp; 11241558Srgrimes if (dp) { 11251558Srgrimes cmp = strcmp(dp->dp_dirp, newdp->dp_dirp); 11261558Srgrimes if (cmp > 0) { 11279336Sdfr add_dlist(&dp->dp_left, newdp, grp, flags); 11281558Srgrimes return; 11291558Srgrimes } else if (cmp < 0) { 11309336Sdfr add_dlist(&dp->dp_right, newdp, grp, flags); 11311558Srgrimes return; 11321558Srgrimes } else 11331558Srgrimes free((caddr_t)newdp); 11341558Srgrimes } else { 11351558Srgrimes dp = newdp; 11361558Srgrimes dp->dp_left = (struct dirlist *)NULL; 11371558Srgrimes *dpp = dp; 11381558Srgrimes } 11391558Srgrimes if (grp) { 11401558Srgrimes 11411558Srgrimes /* 11421558Srgrimes * Hang all of the host(s) off of the directory point. 11431558Srgrimes */ 11441558Srgrimes do { 11451558Srgrimes hp = get_ht(); 11469336Sdfr if (flags & OP_KERB) 11479336Sdfr hp->ht_flag |= DP_KERB; 11481558Srgrimes hp->ht_grp = grp; 11491558Srgrimes hp->ht_next = dp->dp_hosts; 11501558Srgrimes dp->dp_hosts = hp; 11511558Srgrimes grp = grp->gr_next; 11521558Srgrimes } while (grp); 11539336Sdfr } else { 11541558Srgrimes dp->dp_flag |= DP_DEFSET; 11559336Sdfr if (flags & OP_KERB) 11569336Sdfr dp->dp_flag |= DP_KERB; 11579336Sdfr } 11581558Srgrimes} 11591558Srgrimes 11601558Srgrimes/* 11611558Srgrimes * Search for a dirpath on the export point. 11621558Srgrimes */ 11631558Srgrimesstruct dirlist * 11641558Srgrimesdirp_search(dp, dirpath) 11651558Srgrimes struct dirlist *dp; 11661558Srgrimes char *dirpath; 11671558Srgrimes{ 11681558Srgrimes int cmp; 11691558Srgrimes 11701558Srgrimes if (dp) { 11711558Srgrimes cmp = strcmp(dp->dp_dirp, dirpath); 11721558Srgrimes if (cmp > 0) 11731558Srgrimes return (dirp_search(dp->dp_left, dirpath)); 11741558Srgrimes else if (cmp < 0) 11751558Srgrimes return (dirp_search(dp->dp_right, dirpath)); 11761558Srgrimes else 11771558Srgrimes return (dp); 11781558Srgrimes } 11791558Srgrimes return (dp); 11801558Srgrimes} 11811558Srgrimes 11821558Srgrimes/* 11831558Srgrimes * Scan for a host match in a directory tree. 11841558Srgrimes */ 11851558Srgrimesint 11869336Sdfrchk_host(dp, saddr, defsetp, hostsetp) 11871558Srgrimes struct dirlist *dp; 11881558Srgrimes u_long saddr; 11891558Srgrimes int *defsetp; 11909336Sdfr int *hostsetp; 11911558Srgrimes{ 11921558Srgrimes struct hostlist *hp; 11931558Srgrimes struct grouplist *grp; 11941558Srgrimes u_long **addrp; 11951558Srgrimes 11961558Srgrimes if (dp) { 11971558Srgrimes if (dp->dp_flag & DP_DEFSET) 11989336Sdfr *defsetp = dp->dp_flag; 11991558Srgrimes hp = dp->dp_hosts; 12001558Srgrimes while (hp) { 12011558Srgrimes grp = hp->ht_grp; 12021558Srgrimes switch (grp->gr_type) { 12031558Srgrimes case GT_HOST: 12041558Srgrimes addrp = (u_long **) 12051558Srgrimes grp->gr_ptr.gt_hostent->h_addr_list; 12061558Srgrimes while (*addrp) { 12079336Sdfr if (**addrp == saddr) { 12089336Sdfr *hostsetp = (hp->ht_flag | DP_HOSTSET); 12091558Srgrimes return (1); 12109336Sdfr } 12111558Srgrimes addrp++; 12121558Srgrimes } 12131558Srgrimes break; 12141558Srgrimes case GT_NET: 12151558Srgrimes if ((saddr & grp->gr_ptr.gt_net.nt_mask) == 12169336Sdfr grp->gr_ptr.gt_net.nt_net) { 12179336Sdfr *hostsetp = (hp->ht_flag | DP_HOSTSET); 12181558Srgrimes return (1); 12199336Sdfr } 12201558Srgrimes break; 12211558Srgrimes }; 12221558Srgrimes hp = hp->ht_next; 12231558Srgrimes } 12241558Srgrimes } 12251558Srgrimes return (0); 12261558Srgrimes} 12271558Srgrimes 12281558Srgrimes/* 12291558Srgrimes * Scan tree for a host that matches the address. 12301558Srgrimes */ 12311558Srgrimesint 12321558Srgrimesscan_tree(dp, saddr) 12331558Srgrimes struct dirlist *dp; 12341558Srgrimes u_long saddr; 12351558Srgrimes{ 12369336Sdfr int defset, hostset; 12371558Srgrimes 12381558Srgrimes if (dp) { 12391558Srgrimes if (scan_tree(dp->dp_left, saddr)) 12401558Srgrimes return (1); 12419336Sdfr if (chk_host(dp, saddr, &defset, &hostset)) 12421558Srgrimes return (1); 12431558Srgrimes if (scan_tree(dp->dp_right, saddr)) 12441558Srgrimes return (1); 12451558Srgrimes } 12461558Srgrimes return (0); 12471558Srgrimes} 12481558Srgrimes 12491558Srgrimes/* 12501558Srgrimes * Traverse the dirlist tree and free it up. 12511558Srgrimes */ 12521558Srgrimesvoid 12531558Srgrimesfree_dir(dp) 12541558Srgrimes struct dirlist *dp; 12551558Srgrimes{ 12561558Srgrimes 12571558Srgrimes if (dp) { 12581558Srgrimes free_dir(dp->dp_left); 12591558Srgrimes free_dir(dp->dp_right); 12601558Srgrimes free_host(dp->dp_hosts); 12611558Srgrimes free((caddr_t)dp); 12621558Srgrimes } 12631558Srgrimes} 12641558Srgrimes 12651558Srgrimes/* 12661558Srgrimes * Parse the option string and update fields. 12671558Srgrimes * Option arguments may either be -<option>=<value> or 12681558Srgrimes * -<option> <value> 12691558Srgrimes */ 12701558Srgrimesint 12711558Srgrimesdo_opt(cpp, endcpp, ep, grp, has_hostp, exflagsp, cr) 12721558Srgrimes char **cpp, **endcpp; 12731558Srgrimes struct exportlist *ep; 12741558Srgrimes struct grouplist *grp; 12751558Srgrimes int *has_hostp; 12761558Srgrimes int *exflagsp; 12771558Srgrimes struct ucred *cr; 12781558Srgrimes{ 12791558Srgrimes char *cpoptarg, *cpoptend; 12801558Srgrimes char *cp, *endcp, *cpopt, savedc, savedc2; 12811558Srgrimes int allflag, usedarg; 12821558Srgrimes 12831558Srgrimes cpopt = *cpp; 12841558Srgrimes cpopt++; 12851558Srgrimes cp = *endcpp; 12861558Srgrimes savedc = *cp; 12871558Srgrimes *cp = '\0'; 12881558Srgrimes while (cpopt && *cpopt) { 12891558Srgrimes allflag = 1; 12901558Srgrimes usedarg = -2; 129123681Speter if (cpoptend = strchr(cpopt, ',')) { 12921558Srgrimes *cpoptend++ = '\0'; 129323681Speter if (cpoptarg = strchr(cpopt, '=')) 12941558Srgrimes *cpoptarg++ = '\0'; 12951558Srgrimes } else { 129623681Speter if (cpoptarg = strchr(cpopt, '=')) 12971558Srgrimes *cpoptarg++ = '\0'; 12981558Srgrimes else { 12991558Srgrimes *cp = savedc; 13001558Srgrimes nextfield(&cp, &endcp); 13011558Srgrimes **endcpp = '\0'; 13021558Srgrimes if (endcp > cp && *cp != '-') { 13031558Srgrimes cpoptarg = cp; 13041558Srgrimes savedc2 = *endcp; 13051558Srgrimes *endcp = '\0'; 13061558Srgrimes usedarg = 0; 13071558Srgrimes } 13081558Srgrimes } 13091558Srgrimes } 13101558Srgrimes if (!strcmp(cpopt, "ro") || !strcmp(cpopt, "o")) { 13111558Srgrimes *exflagsp |= MNT_EXRDONLY; 13121558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "maproot") || 13131558Srgrimes !(allflag = strcmp(cpopt, "mapall")) || 13141558Srgrimes !strcmp(cpopt, "root") || !strcmp(cpopt, "r"))) { 13151558Srgrimes usedarg++; 13161558Srgrimes parsecred(cpoptarg, cr); 13171558Srgrimes if (allflag == 0) { 13181558Srgrimes *exflagsp |= MNT_EXPORTANON; 13191558Srgrimes opt_flags |= OP_MAPALL; 13201558Srgrimes } else 13211558Srgrimes opt_flags |= OP_MAPROOT; 13221558Srgrimes } else if (!strcmp(cpopt, "kerb") || !strcmp(cpopt, "k")) { 13231558Srgrimes *exflagsp |= MNT_EXKERB; 13241558Srgrimes opt_flags |= OP_KERB; 13251558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "mask") || 13261558Srgrimes !strcmp(cpopt, "m"))) { 13271558Srgrimes if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 1)) { 13281558Srgrimes syslog(LOG_ERR, "Bad mask: %s", cpoptarg); 13291558Srgrimes return (1); 13301558Srgrimes } 13311558Srgrimes usedarg++; 13321558Srgrimes opt_flags |= OP_MASK; 13331558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "network") || 13341558Srgrimes !strcmp(cpopt, "n"))) { 13351558Srgrimes if (grp->gr_type != GT_NULL) { 13361558Srgrimes syslog(LOG_ERR, "Network/host conflict"); 13371558Srgrimes return (1); 13381558Srgrimes } else if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 0)) { 13391558Srgrimes syslog(LOG_ERR, "Bad net: %s", cpoptarg); 13401558Srgrimes return (1); 13411558Srgrimes } 13421558Srgrimes grp->gr_type = GT_NET; 13431558Srgrimes *has_hostp = 1; 13441558Srgrimes usedarg++; 13451558Srgrimes opt_flags |= OP_NET; 13461558Srgrimes } else if (!strcmp(cpopt, "alldirs")) { 13471558Srgrimes opt_flags |= OP_ALLDIRS; 134827447Sdfr } else if (!strcmp(cpopt, "public")) { 134927447Sdfr *exflagsp |= MNT_EXPUBLIC; 135027447Sdfr } else if (!strcmp(cpopt, "webnfs")) { 135127447Sdfr *exflagsp |= (MNT_EXPUBLIC|MNT_EXRDONLY|MNT_EXPORTANON); 135227447Sdfr opt_flags |= OP_MAPALL; 135327447Sdfr } else if (cpoptarg && !strcmp(cpopt, "index")) { 135427447Sdfr ep->ex_indexfile = strdup(cpoptarg); 13551558Srgrimes#ifdef ISO 13561558Srgrimes } else if (cpoptarg && !strcmp(cpopt, "iso")) { 13571558Srgrimes if (get_isoaddr(cpoptarg, grp)) { 13581558Srgrimes syslog(LOG_ERR, "Bad iso addr: %s", cpoptarg); 13591558Srgrimes return (1); 13601558Srgrimes } 13611558Srgrimes *has_hostp = 1; 13621558Srgrimes usedarg++; 13631558Srgrimes opt_flags |= OP_ISO; 13641558Srgrimes#endif /* ISO */ 13651558Srgrimes } else { 13661558Srgrimes syslog(LOG_ERR, "Bad opt %s", cpopt); 13671558Srgrimes return (1); 13681558Srgrimes } 13691558Srgrimes if (usedarg >= 0) { 13701558Srgrimes *endcp = savedc2; 13711558Srgrimes **endcpp = savedc; 13721558Srgrimes if (usedarg > 0) { 13731558Srgrimes *cpp = cp; 13741558Srgrimes *endcpp = endcp; 13751558Srgrimes } 13761558Srgrimes return (0); 13771558Srgrimes } 13781558Srgrimes cpopt = cpoptend; 13791558Srgrimes } 13801558Srgrimes **endcpp = savedc; 13811558Srgrimes return (0); 13821558Srgrimes} 13831558Srgrimes 13841558Srgrimes/* 13851558Srgrimes * Translate a character string to the corresponding list of network 13861558Srgrimes * addresses for a hostname. 13871558Srgrimes */ 13881558Srgrimesint 13897401Swpaulget_host(cp, grp, tgrp) 13901558Srgrimes char *cp; 13911558Srgrimes struct grouplist *grp; 13927401Swpaul struct grouplist *tgrp; 13931558Srgrimes{ 13947401Swpaul struct grouplist *checkgrp; 13951558Srgrimes struct hostent *hp, *nhp; 13961558Srgrimes char **addrp, **naddrp; 13971558Srgrimes struct hostent t_host; 13981558Srgrimes int i; 13991558Srgrimes u_long saddr; 14001558Srgrimes char *aptr[2]; 14011558Srgrimes 14021558Srgrimes if (grp->gr_type != GT_NULL) 14031558Srgrimes return (1); 14041558Srgrimes if ((hp = gethostbyname(cp)) == NULL) { 14051558Srgrimes if (isdigit(*cp)) { 14061558Srgrimes saddr = inet_addr(cp); 14071558Srgrimes if (saddr == -1) { 14089336Sdfr syslog(LOG_ERR, "Inet_addr failed for %s", cp); 14091558Srgrimes return (1); 14101558Srgrimes } 14111558Srgrimes if ((hp = gethostbyaddr((caddr_t)&saddr, sizeof (saddr), 14121558Srgrimes AF_INET)) == NULL) { 14131558Srgrimes hp = &t_host; 14141558Srgrimes hp->h_name = cp; 14151558Srgrimes hp->h_addrtype = AF_INET; 14161558Srgrimes hp->h_length = sizeof (u_long); 14171558Srgrimes hp->h_addr_list = aptr; 14181558Srgrimes aptr[0] = (char *)&saddr; 14191558Srgrimes aptr[1] = (char *)NULL; 14201558Srgrimes } 14211558Srgrimes } else { 14229336Sdfr syslog(LOG_ERR, "Gethostbyname failed for %s", cp); 14231558Srgrimes return (1); 14241558Srgrimes } 14251558Srgrimes } 14267401Swpaul /* 14277401Swpaul * Sanity check: make sure we don't already have an entry 14287401Swpaul * for this host in the grouplist. 14297401Swpaul */ 14307401Swpaul checkgrp = tgrp; 14317401Swpaul while (checkgrp) { 143217887Swpaul if (checkgrp->gr_type == GT_HOST && 143317887Swpaul checkgrp->gr_ptr.gt_hostent != NULL && 14347401Swpaul !strcmp(checkgrp->gr_ptr.gt_hostent->h_name, hp->h_name)) { 14357401Swpaul grp->gr_type = GT_IGNORE; 14367401Swpaul return(0); 14377401Swpaul } 14387401Swpaul checkgrp = checkgrp->gr_next; 14397401Swpaul } 14407401Swpaul 14411558Srgrimes grp->gr_type = GT_HOST; 14421558Srgrimes nhp = grp->gr_ptr.gt_hostent = (struct hostent *) 14431558Srgrimes malloc(sizeof(struct hostent)); 14441558Srgrimes if (nhp == (struct hostent *)NULL) 14451558Srgrimes out_of_mem(); 144623681Speter memmove(nhp, hp, sizeof(struct hostent)); 14471558Srgrimes i = strlen(hp->h_name)+1; 14481558Srgrimes nhp->h_name = (char *)malloc(i); 14491558Srgrimes if (nhp->h_name == (char *)NULL) 14501558Srgrimes out_of_mem(); 145123681Speter memmove(nhp->h_name, hp->h_name, i); 14521558Srgrimes addrp = hp->h_addr_list; 14531558Srgrimes i = 1; 14541558Srgrimes while (*addrp++) 14551558Srgrimes i++; 14561558Srgrimes naddrp = nhp->h_addr_list = (char **) 14571558Srgrimes malloc(i*sizeof(char *)); 14581558Srgrimes if (naddrp == (char **)NULL) 14591558Srgrimes out_of_mem(); 14601558Srgrimes addrp = hp->h_addr_list; 14611558Srgrimes while (*addrp) { 14621558Srgrimes *naddrp = (char *) 14631558Srgrimes malloc(hp->h_length); 14641558Srgrimes if (*naddrp == (char *)NULL) 14651558Srgrimes out_of_mem(); 146623681Speter memmove(*naddrp, *addrp, hp->h_length); 14671558Srgrimes addrp++; 14681558Srgrimes naddrp++; 14691558Srgrimes } 14701558Srgrimes *naddrp = (char *)NULL; 14711558Srgrimes if (debug) 14721558Srgrimes fprintf(stderr, "got host %s\n", hp->h_name); 14731558Srgrimes return (0); 14741558Srgrimes} 14751558Srgrimes 14761558Srgrimes/* 14771558Srgrimes * Free up an exports list component 14781558Srgrimes */ 14791558Srgrimesvoid 14801558Srgrimesfree_exp(ep) 14811558Srgrimes struct exportlist *ep; 14821558Srgrimes{ 14831558Srgrimes 14841558Srgrimes if (ep->ex_defdir) { 14851558Srgrimes free_host(ep->ex_defdir->dp_hosts); 14861558Srgrimes free((caddr_t)ep->ex_defdir); 14871558Srgrimes } 14881558Srgrimes if (ep->ex_fsdir) 14891558Srgrimes free(ep->ex_fsdir); 149027447Sdfr if (ep->ex_indexfile) 149127447Sdfr free(ep->ex_indexfile); 14921558Srgrimes free_dir(ep->ex_dirl); 14931558Srgrimes free((caddr_t)ep); 14941558Srgrimes} 14951558Srgrimes 14961558Srgrimes/* 14971558Srgrimes * Free hosts. 14981558Srgrimes */ 14991558Srgrimesvoid 15001558Srgrimesfree_host(hp) 15011558Srgrimes struct hostlist *hp; 15021558Srgrimes{ 15031558Srgrimes struct hostlist *hp2; 15041558Srgrimes 15051558Srgrimes while (hp) { 15061558Srgrimes hp2 = hp; 15071558Srgrimes hp = hp->ht_next; 15081558Srgrimes free((caddr_t)hp2); 15091558Srgrimes } 15101558Srgrimes} 15111558Srgrimes 15121558Srgrimesstruct hostlist * 15131558Srgrimesget_ht() 15141558Srgrimes{ 15151558Srgrimes struct hostlist *hp; 15161558Srgrimes 15171558Srgrimes hp = (struct hostlist *)malloc(sizeof (struct hostlist)); 15181558Srgrimes if (hp == (struct hostlist *)NULL) 15191558Srgrimes out_of_mem(); 15201558Srgrimes hp->ht_next = (struct hostlist *)NULL; 15219336Sdfr hp->ht_flag = 0; 15221558Srgrimes return (hp); 15231558Srgrimes} 15241558Srgrimes 15251558Srgrimes#ifdef ISO 15261558Srgrimes/* 15271558Srgrimes * Translate an iso address. 15281558Srgrimes */ 15291558Srgrimesget_isoaddr(cp, grp) 15301558Srgrimes char *cp; 15311558Srgrimes struct grouplist *grp; 15321558Srgrimes{ 15331558Srgrimes struct iso_addr *isop; 15341558Srgrimes struct sockaddr_iso *isoaddr; 15351558Srgrimes 15361558Srgrimes if (grp->gr_type != GT_NULL) 15371558Srgrimes return (1); 15381558Srgrimes if ((isop = iso_addr(cp)) == NULL) { 15391558Srgrimes syslog(LOG_ERR, 15401558Srgrimes "iso_addr failed, ignored"); 15411558Srgrimes return (1); 15421558Srgrimes } 15431558Srgrimes isoaddr = (struct sockaddr_iso *) 15441558Srgrimes malloc(sizeof (struct sockaddr_iso)); 15451558Srgrimes if (isoaddr == (struct sockaddr_iso *)NULL) 15461558Srgrimes out_of_mem(); 154723681Speter memset(isoaddr, 0, sizeof(struct sockaddr_iso)); 154823681Speter memmove(&isoaddr->siso_addr, isop, sizeof(struct iso_addr)); 154923681Speter isoaddr->siso_len = sizeof(struct sockaddr_iso); 15501558Srgrimes isoaddr->siso_family = AF_ISO; 15511558Srgrimes grp->gr_type = GT_ISO; 15521558Srgrimes grp->gr_ptr.gt_isoaddr = isoaddr; 15531558Srgrimes return (0); 15541558Srgrimes} 15551558Srgrimes#endif /* ISO */ 15561558Srgrimes 15571558Srgrimes/* 15581558Srgrimes * Out of memory, fatal 15591558Srgrimes */ 15601558Srgrimesvoid 15611558Srgrimesout_of_mem() 15621558Srgrimes{ 15631558Srgrimes 15641558Srgrimes syslog(LOG_ERR, "Out of memory"); 15651558Srgrimes exit(2); 15661558Srgrimes} 15671558Srgrimes 15681558Srgrimes/* 15691558Srgrimes * Do the mount syscall with the update flag to push the export info into 15701558Srgrimes * the kernel. 15711558Srgrimes */ 15721558Srgrimesint 15731558Srgrimesdo_mount(ep, grp, exflags, anoncrp, dirp, dirplen, fsb) 15741558Srgrimes struct exportlist *ep; 15751558Srgrimes struct grouplist *grp; 15761558Srgrimes int exflags; 15771558Srgrimes struct ucred *anoncrp; 15781558Srgrimes char *dirp; 15791558Srgrimes int dirplen; 15801558Srgrimes struct statfs *fsb; 15811558Srgrimes{ 15821558Srgrimes char *cp = (char *)NULL; 15831558Srgrimes u_long **addrp; 15841558Srgrimes int done; 15851558Srgrimes char savedc = '\0'; 15861558Srgrimes struct sockaddr_in sin, imask; 15871558Srgrimes union { 15881558Srgrimes struct ufs_args ua; 15891558Srgrimes struct iso_args ia; 15901558Srgrimes struct mfs_args ma; 15919336Sdfr#ifdef __NetBSD__ 15929336Sdfr struct msdosfs_args da; 15939336Sdfr#endif 15941558Srgrimes } args; 15951558Srgrimes u_long net; 15961558Srgrimes 15971558Srgrimes args.ua.fspec = 0; 15981558Srgrimes args.ua.export.ex_flags = exflags; 15991558Srgrimes args.ua.export.ex_anon = *anoncrp; 160027447Sdfr args.ua.export.ex_indexfile = ep->ex_indexfile; 160123681Speter memset(&sin, 0, sizeof(sin)); 160223681Speter memset(&imask, 0, sizeof(imask)); 16031558Srgrimes sin.sin_family = AF_INET; 16041558Srgrimes sin.sin_len = sizeof(sin); 16051558Srgrimes imask.sin_family = AF_INET; 16061558Srgrimes imask.sin_len = sizeof(sin); 16071558Srgrimes if (grp->gr_type == GT_HOST) 16081558Srgrimes addrp = (u_long **)grp->gr_ptr.gt_hostent->h_addr_list; 16091558Srgrimes else 16101558Srgrimes addrp = (u_long **)NULL; 16111558Srgrimes done = FALSE; 16121558Srgrimes while (!done) { 16131558Srgrimes switch (grp->gr_type) { 16141558Srgrimes case GT_HOST: 16151558Srgrimes if (addrp) { 16161558Srgrimes sin.sin_addr.s_addr = **addrp; 16171558Srgrimes args.ua.export.ex_addrlen = sizeof(sin); 16181558Srgrimes } else 16191558Srgrimes args.ua.export.ex_addrlen = 0; 16201558Srgrimes args.ua.export.ex_addr = (struct sockaddr *)&sin; 16211558Srgrimes args.ua.export.ex_masklen = 0; 16221558Srgrimes break; 16231558Srgrimes case GT_NET: 16241558Srgrimes if (grp->gr_ptr.gt_net.nt_mask) 16251558Srgrimes imask.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_mask; 16261558Srgrimes else { 16271558Srgrimes net = ntohl(grp->gr_ptr.gt_net.nt_net); 16281558Srgrimes if (IN_CLASSA(net)) 16291558Srgrimes imask.sin_addr.s_addr = inet_addr("255.0.0.0"); 16301558Srgrimes else if (IN_CLASSB(net)) 16311558Srgrimes imask.sin_addr.s_addr = 16321558Srgrimes inet_addr("255.255.0.0"); 16331558Srgrimes else 16341558Srgrimes imask.sin_addr.s_addr = 16351558Srgrimes inet_addr("255.255.255.0"); 16361558Srgrimes grp->gr_ptr.gt_net.nt_mask = imask.sin_addr.s_addr; 16371558Srgrimes } 16381558Srgrimes sin.sin_addr.s_addr = grp->gr_ptr.gt_net.nt_net; 16391558Srgrimes args.ua.export.ex_addr = (struct sockaddr *)&sin; 16401558Srgrimes args.ua.export.ex_addrlen = sizeof (sin); 16411558Srgrimes args.ua.export.ex_mask = (struct sockaddr *)&imask; 16421558Srgrimes args.ua.export.ex_masklen = sizeof (imask); 16431558Srgrimes break; 16441558Srgrimes#ifdef ISO 16451558Srgrimes case GT_ISO: 16461558Srgrimes args.ua.export.ex_addr = 16471558Srgrimes (struct sockaddr *)grp->gr_ptr.gt_isoaddr; 16481558Srgrimes args.ua.export.ex_addrlen = 16491558Srgrimes sizeof(struct sockaddr_iso); 16501558Srgrimes args.ua.export.ex_masklen = 0; 16511558Srgrimes break; 16521558Srgrimes#endif /* ISO */ 16537401Swpaul case GT_IGNORE: 16547401Swpaul return(0); 16557401Swpaul break; 16561558Srgrimes default: 16571558Srgrimes syslog(LOG_ERR, "Bad grouptype"); 16581558Srgrimes if (cp) 16591558Srgrimes *cp = savedc; 16601558Srgrimes return (1); 16611558Srgrimes }; 16621558Srgrimes 16631558Srgrimes /* 16641558Srgrimes * XXX: 16651558Srgrimes * Maybe I should just use the fsb->f_mntonname path instead 16661558Srgrimes * of looping back up the dirp to the mount point?? 16671558Srgrimes * Also, needs to know how to export all types of local 166823681Speter * exportable file systems and not just "ufs". 16691558Srgrimes */ 16709336Sdfr while (mount(fsb->f_fstypename, dirp, 16711558Srgrimes fsb->f_flags | MNT_UPDATE, (caddr_t)&args) < 0) { 16721558Srgrimes if (cp) 16731558Srgrimes *cp-- = savedc; 16741558Srgrimes else 16751558Srgrimes cp = dirp + dirplen - 1; 16761558Srgrimes if (errno == EPERM) { 16771558Srgrimes syslog(LOG_ERR, 16781558Srgrimes "Can't change attributes for %s.\n", dirp); 16791558Srgrimes return (1); 16801558Srgrimes } 16811558Srgrimes if (opt_flags & OP_ALLDIRS) { 16824895Swollman syslog(LOG_ERR, "Could not remount %s: %m", 16834895Swollman dirp); 16841558Srgrimes return (1); 16851558Srgrimes } 16861558Srgrimes /* back up over the last component */ 16871558Srgrimes while (*cp == '/' && cp > dirp) 16881558Srgrimes cp--; 16891558Srgrimes while (*(cp - 1) != '/' && cp > dirp) 16901558Srgrimes cp--; 16911558Srgrimes if (cp == dirp) { 16921558Srgrimes if (debug) 16931558Srgrimes fprintf(stderr,"mnt unsucc\n"); 16941558Srgrimes syslog(LOG_ERR, "Can't export %s", dirp); 16951558Srgrimes return (1); 16961558Srgrimes } 16971558Srgrimes savedc = *cp; 16981558Srgrimes *cp = '\0'; 16991558Srgrimes } 17001558Srgrimes if (addrp) { 17011558Srgrimes ++addrp; 17021558Srgrimes if (*addrp == (u_long *)NULL) 17031558Srgrimes done = TRUE; 17041558Srgrimes } else 17051558Srgrimes done = TRUE; 17061558Srgrimes } 17071558Srgrimes if (cp) 17081558Srgrimes *cp = savedc; 17091558Srgrimes return (0); 17101558Srgrimes} 17111558Srgrimes 17121558Srgrimes/* 17131558Srgrimes * Translate a net address. 17141558Srgrimes */ 17151558Srgrimesint 17161558Srgrimesget_net(cp, net, maskflg) 17171558Srgrimes char *cp; 17181558Srgrimes struct netmsk *net; 17191558Srgrimes int maskflg; 17201558Srgrimes{ 17211558Srgrimes struct netent *np; 17221558Srgrimes long netaddr; 17231558Srgrimes struct in_addr inetaddr, inetaddr2; 17241558Srgrimes char *name; 17251558Srgrimes 172625318Spst if (isdigit(*cp) && ((netaddr = inet_network(cp)) != -1)) { 17271558Srgrimes inetaddr = inet_makeaddr(netaddr, 0); 17281558Srgrimes /* 17291558Srgrimes * Due to arbritrary subnet masks, you don't know how many 17301558Srgrimes * bits to shift the address to make it into a network, 17311558Srgrimes * however you do know how to make a network address into 17321558Srgrimes * a host with host == 0 and then compare them. 17331558Srgrimes * (What a pest) 17341558Srgrimes */ 17351558Srgrimes if (!maskflg) { 17361558Srgrimes setnetent(0); 17371558Srgrimes while (np = getnetent()) { 17381558Srgrimes inetaddr2 = inet_makeaddr(np->n_net, 0); 17391558Srgrimes if (inetaddr2.s_addr == inetaddr.s_addr) 17401558Srgrimes break; 17411558Srgrimes } 17421558Srgrimes endnetent(); 17431558Srgrimes } 174425318Spst } else if ((np = getnetbyname(cp)) != NULL) { 174525318Spst inetaddr = inet_makeaddr(np->n_net, 0); 17461558Srgrimes } else 17471558Srgrimes return (1); 174825318Spst 17491558Srgrimes if (maskflg) 17501558Srgrimes net->nt_mask = inetaddr.s_addr; 17511558Srgrimes else { 17521558Srgrimes if (np) 17531558Srgrimes name = np->n_name; 17541558Srgrimes else 17551558Srgrimes name = inet_ntoa(inetaddr); 17561558Srgrimes net->nt_name = (char *)malloc(strlen(name) + 1); 17571558Srgrimes if (net->nt_name == (char *)NULL) 17581558Srgrimes out_of_mem(); 17591558Srgrimes strcpy(net->nt_name, name); 17601558Srgrimes net->nt_net = inetaddr.s_addr; 17611558Srgrimes } 17621558Srgrimes return (0); 17631558Srgrimes} 17641558Srgrimes 17651558Srgrimes/* 17661558Srgrimes * Parse out the next white space separated field 17671558Srgrimes */ 17681558Srgrimesvoid 17691558Srgrimesnextfield(cp, endcp) 17701558Srgrimes char **cp; 17711558Srgrimes char **endcp; 17721558Srgrimes{ 17731558Srgrimes char *p; 17741558Srgrimes 17751558Srgrimes p = *cp; 17761558Srgrimes while (*p == ' ' || *p == '\t') 17771558Srgrimes p++; 17781558Srgrimes if (*p == '\n' || *p == '\0') 17791558Srgrimes *cp = *endcp = p; 17801558Srgrimes else { 17811558Srgrimes *cp = p++; 17821558Srgrimes while (*p != ' ' && *p != '\t' && *p != '\n' && *p != '\0') 17831558Srgrimes p++; 17841558Srgrimes *endcp = p; 17851558Srgrimes } 17861558Srgrimes} 17871558Srgrimes 17881558Srgrimes/* 17891558Srgrimes * Get an exports file line. Skip over blank lines and handle line 17901558Srgrimes * continuations. 17911558Srgrimes */ 17921558Srgrimesint 17931558Srgrimesget_line() 17941558Srgrimes{ 17951558Srgrimes char *p, *cp; 17961558Srgrimes int len; 17971558Srgrimes int totlen, cont_line; 17981558Srgrimes 17991558Srgrimes /* 18001558Srgrimes * Loop around ignoring blank lines and getting all continuation lines. 18011558Srgrimes */ 18021558Srgrimes p = line; 18031558Srgrimes totlen = 0; 18041558Srgrimes do { 18051558Srgrimes if (fgets(p, LINESIZ - totlen, exp_file) == NULL) 18061558Srgrimes return (0); 18071558Srgrimes len = strlen(p); 18081558Srgrimes cp = p + len - 1; 18091558Srgrimes cont_line = 0; 18101558Srgrimes while (cp >= p && 18111558Srgrimes (*cp == ' ' || *cp == '\t' || *cp == '\n' || *cp == '\\')) { 18121558Srgrimes if (*cp == '\\') 18131558Srgrimes cont_line = 1; 18141558Srgrimes cp--; 18151558Srgrimes len--; 18161558Srgrimes } 18171558Srgrimes *++cp = '\0'; 18181558Srgrimes if (len > 0) { 18191558Srgrimes totlen += len; 18201558Srgrimes if (totlen >= LINESIZ) { 18211558Srgrimes syslog(LOG_ERR, "Exports line too long"); 18221558Srgrimes exit(2); 18231558Srgrimes } 18241558Srgrimes p = cp; 18251558Srgrimes } 18261558Srgrimes } while (totlen == 0 || cont_line); 18271558Srgrimes return (1); 18281558Srgrimes} 18291558Srgrimes 18301558Srgrimes/* 18311558Srgrimes * Parse a description of a credential. 18321558Srgrimes */ 18331558Srgrimesvoid 18341558Srgrimesparsecred(namelist, cr) 18351558Srgrimes char *namelist; 18361558Srgrimes struct ucred *cr; 18371558Srgrimes{ 18381558Srgrimes char *name; 18391558Srgrimes int cnt; 18401558Srgrimes char *names; 18411558Srgrimes struct passwd *pw; 18421558Srgrimes struct group *gr; 18431558Srgrimes int ngroups, groups[NGROUPS + 1]; 18441558Srgrimes 18451558Srgrimes /* 18461558Srgrimes * Set up the unpriviledged user. 18471558Srgrimes */ 18481558Srgrimes cr->cr_ref = 1; 18491558Srgrimes cr->cr_uid = -2; 18501558Srgrimes cr->cr_groups[0] = -2; 18511558Srgrimes cr->cr_ngroups = 1; 18521558Srgrimes /* 18531558Srgrimes * Get the user's password table entry. 18541558Srgrimes */ 18551558Srgrimes names = strsep(&namelist, " \t\n"); 18561558Srgrimes name = strsep(&names, ":"); 18571558Srgrimes if (isdigit(*name) || *name == '-') 18581558Srgrimes pw = getpwuid(atoi(name)); 18591558Srgrimes else 18601558Srgrimes pw = getpwnam(name); 18611558Srgrimes /* 18621558Srgrimes * Credentials specified as those of a user. 18631558Srgrimes */ 18641558Srgrimes if (names == NULL) { 18651558Srgrimes if (pw == NULL) { 18661558Srgrimes syslog(LOG_ERR, "Unknown user: %s", name); 18671558Srgrimes return; 18681558Srgrimes } 18691558Srgrimes cr->cr_uid = pw->pw_uid; 18701558Srgrimes ngroups = NGROUPS + 1; 18711558Srgrimes if (getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups)) 18721558Srgrimes syslog(LOG_ERR, "Too many groups"); 18731558Srgrimes /* 18741558Srgrimes * Convert from int's to gid_t's and compress out duplicate 18751558Srgrimes */ 18761558Srgrimes cr->cr_ngroups = ngroups - 1; 18771558Srgrimes cr->cr_groups[0] = groups[0]; 18781558Srgrimes for (cnt = 2; cnt < ngroups; cnt++) 18791558Srgrimes cr->cr_groups[cnt - 1] = groups[cnt]; 18801558Srgrimes return; 18811558Srgrimes } 18821558Srgrimes /* 18831558Srgrimes * Explicit credential specified as a colon separated list: 18841558Srgrimes * uid:gid:gid:... 18851558Srgrimes */ 18861558Srgrimes if (pw != NULL) 18871558Srgrimes cr->cr_uid = pw->pw_uid; 18881558Srgrimes else if (isdigit(*name) || *name == '-') 18891558Srgrimes cr->cr_uid = atoi(name); 18901558Srgrimes else { 18911558Srgrimes syslog(LOG_ERR, "Unknown user: %s", name); 18921558Srgrimes return; 18931558Srgrimes } 18941558Srgrimes cr->cr_ngroups = 0; 18951558Srgrimes while (names != NULL && *names != '\0' && cr->cr_ngroups < NGROUPS) { 18961558Srgrimes name = strsep(&names, ":"); 18971558Srgrimes if (isdigit(*name) || *name == '-') { 18981558Srgrimes cr->cr_groups[cr->cr_ngroups++] = atoi(name); 18991558Srgrimes } else { 19001558Srgrimes if ((gr = getgrnam(name)) == NULL) { 19011558Srgrimes syslog(LOG_ERR, "Unknown group: %s", name); 19021558Srgrimes continue; 19031558Srgrimes } 19041558Srgrimes cr->cr_groups[cr->cr_ngroups++] = gr->gr_gid; 19051558Srgrimes } 19061558Srgrimes } 19071558Srgrimes if (names != NULL && *names != '\0' && cr->cr_ngroups == NGROUPS) 19081558Srgrimes syslog(LOG_ERR, "Too many groups"); 19091558Srgrimes} 19101558Srgrimes 19111558Srgrimes#define STRSIZ (RPCMNT_NAMELEN+RPCMNT_PATHLEN+50) 19121558Srgrimes/* 19131558Srgrimes * Routines that maintain the remote mounttab 19141558Srgrimes */ 19151558Srgrimesvoid 19161558Srgrimesget_mountlist() 19171558Srgrimes{ 19181558Srgrimes struct mountlist *mlp, **mlpp; 191923681Speter char *host, *dirp, *cp; 19201558Srgrimes int len; 19211558Srgrimes char str[STRSIZ]; 19221558Srgrimes FILE *mlfile; 19231558Srgrimes 19241558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "r")) == NULL) { 19251558Srgrimes syslog(LOG_ERR, "Can't open %s", _PATH_RMOUNTLIST); 19261558Srgrimes return; 19271558Srgrimes } 19281558Srgrimes mlpp = &mlhead; 19291558Srgrimes while (fgets(str, STRSIZ, mlfile) != NULL) { 193023681Speter cp = str; 193123681Speter host = strsep(&cp, " \t\n"); 193223681Speter dirp = strsep(&cp, " \t\n"); 193323681Speter if (host == NULL || dirp == NULL) 19341558Srgrimes continue; 19351558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 193623681Speter strncpy(mlp->ml_host, host, RPCMNT_NAMELEN); 193723681Speter mlp->ml_host[RPCMNT_NAMELEN] = '\0'; 193823681Speter strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN); 193923681Speter mlp->ml_dirp[RPCMNT_PATHLEN] = '\0'; 19401558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 19411558Srgrimes *mlpp = mlp; 19421558Srgrimes mlpp = &mlp->ml_next; 19431558Srgrimes } 19441558Srgrimes fclose(mlfile); 19451558Srgrimes} 19461558Srgrimes 19471558Srgrimesvoid 19481558Srgrimesdel_mlist(hostp, dirp) 19491558Srgrimes char *hostp, *dirp; 19501558Srgrimes{ 19511558Srgrimes struct mountlist *mlp, **mlpp; 19521558Srgrimes struct mountlist *mlp2; 19531558Srgrimes FILE *mlfile; 19541558Srgrimes int fnd = 0; 19551558Srgrimes 19561558Srgrimes mlpp = &mlhead; 19571558Srgrimes mlp = mlhead; 19581558Srgrimes while (mlp) { 19591558Srgrimes if (!strcmp(mlp->ml_host, hostp) && 19601558Srgrimes (!dirp || !strcmp(mlp->ml_dirp, dirp))) { 19611558Srgrimes fnd = 1; 19621558Srgrimes mlp2 = mlp; 19631558Srgrimes *mlpp = mlp = mlp->ml_next; 19641558Srgrimes free((caddr_t)mlp2); 19651558Srgrimes } else { 19661558Srgrimes mlpp = &mlp->ml_next; 19671558Srgrimes mlp = mlp->ml_next; 19681558Srgrimes } 19691558Srgrimes } 19701558Srgrimes if (fnd) { 19711558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "w")) == NULL) { 19721558Srgrimes syslog(LOG_ERR,"Can't update %s", _PATH_RMOUNTLIST); 19731558Srgrimes return; 19741558Srgrimes } 19751558Srgrimes mlp = mlhead; 19761558Srgrimes while (mlp) { 19771558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 19781558Srgrimes mlp = mlp->ml_next; 19791558Srgrimes } 19801558Srgrimes fclose(mlfile); 19811558Srgrimes } 19821558Srgrimes} 19831558Srgrimes 19841558Srgrimesvoid 19851558Srgrimesadd_mlist(hostp, dirp) 19861558Srgrimes char *hostp, *dirp; 19871558Srgrimes{ 19881558Srgrimes struct mountlist *mlp, **mlpp; 19891558Srgrimes FILE *mlfile; 19901558Srgrimes 19911558Srgrimes mlpp = &mlhead; 19921558Srgrimes mlp = mlhead; 19931558Srgrimes while (mlp) { 19941558Srgrimes if (!strcmp(mlp->ml_host, hostp) && !strcmp(mlp->ml_dirp, dirp)) 19951558Srgrimes return; 19961558Srgrimes mlpp = &mlp->ml_next; 19971558Srgrimes mlp = mlp->ml_next; 19981558Srgrimes } 19991558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 20001558Srgrimes strncpy(mlp->ml_host, hostp, RPCMNT_NAMELEN); 20011558Srgrimes mlp->ml_host[RPCMNT_NAMELEN] = '\0'; 20021558Srgrimes strncpy(mlp->ml_dirp, dirp, RPCMNT_PATHLEN); 20031558Srgrimes mlp->ml_dirp[RPCMNT_PATHLEN] = '\0'; 20041558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 20051558Srgrimes *mlpp = mlp; 20061558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "a")) == NULL) { 20071558Srgrimes syslog(LOG_ERR, "Can't update %s", _PATH_RMOUNTLIST); 20081558Srgrimes return; 20091558Srgrimes } 20101558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 20111558Srgrimes fclose(mlfile); 20121558Srgrimes} 20131558Srgrimes 20141558Srgrimes/* 20151558Srgrimes * This function is called via. SIGTERM when the system is going down. 20161558Srgrimes * It sends a broadcast RPCMNT_UMNTALL. 20171558Srgrimes */ 20181558Srgrimesvoid 20191558Srgrimessend_umntall() 20201558Srgrimes{ 20211558Srgrimes (void) clnt_broadcast(RPCPROG_MNT, RPCMNT_VER1, RPCMNT_UMNTALL, 20221558Srgrimes xdr_void, (caddr_t)0, xdr_void, (caddr_t)0, umntall_each); 20231558Srgrimes exit(0); 20241558Srgrimes} 20251558Srgrimes 20261558Srgrimesint 20271558Srgrimesumntall_each(resultsp, raddr) 20281558Srgrimes caddr_t resultsp; 20291558Srgrimes struct sockaddr_in *raddr; 20301558Srgrimes{ 20311558Srgrimes return (1); 20321558Srgrimes} 20331558Srgrimes 20341558Srgrimes/* 20351558Srgrimes * Free up a group list. 20361558Srgrimes */ 20371558Srgrimesvoid 20381558Srgrimesfree_grp(grp) 20391558Srgrimes struct grouplist *grp; 20401558Srgrimes{ 20411558Srgrimes char **addrp; 20421558Srgrimes 20431558Srgrimes if (grp->gr_type == GT_HOST) { 20441558Srgrimes if (grp->gr_ptr.gt_hostent->h_name) { 20451558Srgrimes addrp = grp->gr_ptr.gt_hostent->h_addr_list; 20461558Srgrimes while (addrp && *addrp) 20471558Srgrimes free(*addrp++); 20481558Srgrimes free((caddr_t)grp->gr_ptr.gt_hostent->h_addr_list); 20491558Srgrimes free(grp->gr_ptr.gt_hostent->h_name); 20501558Srgrimes } 20511558Srgrimes free((caddr_t)grp->gr_ptr.gt_hostent); 20521558Srgrimes } else if (grp->gr_type == GT_NET) { 20531558Srgrimes if (grp->gr_ptr.gt_net.nt_name) 20541558Srgrimes free(grp->gr_ptr.gt_net.nt_name); 20551558Srgrimes } 20561558Srgrimes#ifdef ISO 20571558Srgrimes else if (grp->gr_type == GT_ISO) 20581558Srgrimes free((caddr_t)grp->gr_ptr.gt_isoaddr); 20591558Srgrimes#endif 20601558Srgrimes free((caddr_t)grp); 20611558Srgrimes} 20621558Srgrimes 20631558Srgrimes#ifdef DEBUG 20641558Srgrimesvoid 20651558SrgrimesSYSLOG(int pri, const char *fmt, ...) 20661558Srgrimes{ 20671558Srgrimes va_list ap; 20681558Srgrimes 20691558Srgrimes va_start(ap, fmt); 20701558Srgrimes vfprintf(stderr, fmt, ap); 20711558Srgrimes va_end(ap); 20721558Srgrimes} 20731558Srgrimes#endif /* DEBUG */ 20741558Srgrimes 20751558Srgrimes/* 20761558Srgrimes * Check options for consistency. 20771558Srgrimes */ 20781558Srgrimesint 20791558Srgrimescheck_options(dp) 20801558Srgrimes struct dirlist *dp; 20811558Srgrimes{ 20821558Srgrimes 20831558Srgrimes if (dp == (struct dirlist *)NULL) 20841558Srgrimes return (1); 20851558Srgrimes if ((opt_flags & (OP_MAPROOT | OP_MAPALL)) == (OP_MAPROOT | OP_MAPALL) || 20861558Srgrimes (opt_flags & (OP_MAPROOT | OP_KERB)) == (OP_MAPROOT | OP_KERB) || 20871558Srgrimes (opt_flags & (OP_MAPALL | OP_KERB)) == (OP_MAPALL | OP_KERB)) { 20881558Srgrimes syslog(LOG_ERR, "-mapall, -maproot and -kerb mutually exclusive"); 20891558Srgrimes return (1); 20901558Srgrimes } 20911558Srgrimes if ((opt_flags & OP_MASK) && (opt_flags & OP_NET) == 0) { 20921558Srgrimes syslog(LOG_ERR, "-mask requires -net"); 20931558Srgrimes return (1); 20941558Srgrimes } 20951558Srgrimes if ((opt_flags & (OP_NET | OP_ISO)) == (OP_NET | OP_ISO)) { 20961558Srgrimes syslog(LOG_ERR, "-net and -iso mutually exclusive"); 20971558Srgrimes return (1); 20981558Srgrimes } 20991558Srgrimes if ((opt_flags & OP_ALLDIRS) && dp->dp_left) { 21001558Srgrimes syslog(LOG_ERR, "-alldir has multiple directories"); 21011558Srgrimes return (1); 21021558Srgrimes } 21031558Srgrimes return (0); 21041558Srgrimes} 21051558Srgrimes 21061558Srgrimes/* 21071558Srgrimes * Check an absolute directory path for any symbolic links. Return true 21081558Srgrimes * if no symbolic links are found. 21091558Srgrimes */ 21101558Srgrimesint 21111558Srgrimescheck_dirpath(dirp) 21121558Srgrimes char *dirp; 21131558Srgrimes{ 21141558Srgrimes char *cp; 21151558Srgrimes int ret = 1; 21161558Srgrimes struct stat sb; 21171558Srgrimes 21181558Srgrimes cp = dirp + 1; 21191558Srgrimes while (*cp && ret) { 21201558Srgrimes if (*cp == '/') { 21211558Srgrimes *cp = '\0'; 21229336Sdfr if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode)) 21231558Srgrimes ret = 0; 21241558Srgrimes *cp = '/'; 21251558Srgrimes } 21261558Srgrimes cp++; 21271558Srgrimes } 21289336Sdfr if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode)) 21291558Srgrimes ret = 0; 21301558Srgrimes return (ret); 21311558Srgrimes} 21329336Sdfr 21339336Sdfr/* 21349336Sdfr * Just translate an ascii string to an integer. 21359336Sdfr */ 21369336Sdfrint 21379336Sdfrget_num(cp) 21389336Sdfr register char *cp; 21399336Sdfr{ 21409336Sdfr register int res = 0; 21419336Sdfr 21429336Sdfr while (*cp) { 21439336Sdfr if (*cp < '0' || *cp > '9') 21449336Sdfr return (-1); 21459336Sdfr res = res * 10 + (*cp++ - '0'); 21469336Sdfr } 21479336Sdfr return (res); 21489336Sdfr} 2149