mountd.c revision 216587
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 * 4. Neither the name of the University nor the names of its contributors 171558Srgrimes * may be used to endorse or promote products derived from this software 181558Srgrimes * without specific prior written permission. 191558Srgrimes * 201558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 211558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 221558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 231558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 241558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 251558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 261558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 271558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 281558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 291558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 301558Srgrimes * SUCH DAMAGE. 311558Srgrimes */ 321558Srgrimes 331558Srgrimes#ifndef lint 3437663Scharnierstatic const char copyright[] = 351558Srgrimes"@(#) Copyright (c) 1989, 1993\n\ 361558Srgrimes The Regents of the University of California. All rights reserved.\n"; 372999Swollman#endif /*not lint*/ 381558Srgrimes 39105267Scharnier#if 0 401558Srgrimes#ifndef lint 4137663Scharnierstatic char sccsid[] = "@(#)mountd.c 8.15 (Berkeley) 5/1/95"; 42105267Scharnier#endif /*not lint*/ 4337663Scharnier#endif 441558Srgrimes 45105267Scharnier#include <sys/cdefs.h> 46105267Scharnier__FBSDID("$FreeBSD: head/usr.sbin/mountd/mountd.c 216587 2010-12-20 09:28:28Z charnier $"); 47105267Scharnier 481558Srgrimes#include <sys/param.h> 49192934Srmacklem#include <sys/fcntl.h> 50192934Srmacklem#include <sys/linker.h> 51192934Srmacklem#include <sys/module.h> 521558Srgrimes#include <sys/mount.h> 531558Srgrimes#include <sys/stat.h> 54192934Srmacklem#include <sys/sysctl.h> 551558Srgrimes#include <sys/syslog.h> 561558Srgrimes 571558Srgrimes#include <rpc/rpc.h> 58109363Smbr#include <rpc/rpc_com.h> 591558Srgrimes#include <rpc/pmap_clnt.h> 6074462Salfred#include <rpc/pmap_prot.h> 6174462Salfred#include <rpcsvc/mount.h> 629336Sdfr#include <nfs/nfsproto.h> 63192934Srmacklem#include <nfs/nfssvc.h> 6483653Speter#include <nfsserver/nfs.h> 651558Srgrimes 66192934Srmacklem#include <fs/nfs/nfsport.h> 67192934Srmacklem 681558Srgrimes#include <arpa/inet.h> 691558Srgrimes 701558Srgrimes#include <ctype.h> 7137663Scharnier#include <err.h> 721558Srgrimes#include <errno.h> 731558Srgrimes#include <grp.h> 74149433Spjd#include <libutil.h> 75103949Smike#include <limits.h> 761558Srgrimes#include <netdb.h> 771558Srgrimes#include <pwd.h> 781558Srgrimes#include <signal.h> 791558Srgrimes#include <stdio.h> 801558Srgrimes#include <stdlib.h> 811558Srgrimes#include <string.h> 821558Srgrimes#include <unistd.h> 831558Srgrimes#include "pathnames.h" 84158857Srodrigc#include "mntopts.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; 95194880Sdfr char ml_host[MNTNAMLEN+1]; 96194880Sdfr char ml_dirp[MNTPATHLEN+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 1091558Srgrimes 1101558Srgrimesstruct exportlist { 1111558Srgrimes struct exportlist *ex_next; 1121558Srgrimes struct dirlist *ex_dirl; 1131558Srgrimes struct dirlist *ex_defdir; 1141558Srgrimes int ex_flag; 1151558Srgrimes fsid_t ex_fs; 1161558Srgrimes char *ex_fsdir; 11727447Sdfr char *ex_indexfile; 118184588Sdfr int ex_numsecflavors; 119184588Sdfr int ex_secflavors[MAXSECFLAVORS]; 1201558Srgrimes}; 1211558Srgrimes/* ex_flag bits */ 1221558Srgrimes#define EX_LINKED 0x1 1231558Srgrimes 1241558Srgrimesstruct netmsk { 12574462Salfred struct sockaddr_storage nt_net; 12675801Siedowse struct sockaddr_storage nt_mask; 12742144Sdfr char *nt_name; 1281558Srgrimes}; 1291558Srgrimes 1301558Srgrimesunion grouptypes { 13174462Salfred struct addrinfo *gt_addrinfo; 1321558Srgrimes struct netmsk gt_net; 1331558Srgrimes}; 1341558Srgrimes 1351558Srgrimesstruct grouplist { 1361558Srgrimes int gr_type; 1371558Srgrimes union grouptypes gr_ptr; 1381558Srgrimes struct grouplist *gr_next; 1391558Srgrimes}; 1401558Srgrimes/* Group types */ 1411558Srgrimes#define GT_NULL 0x0 1421558Srgrimes#define GT_HOST 0x1 1431558Srgrimes#define GT_NET 0x2 14475641Siedowse#define GT_DEFAULT 0x3 1457401Swpaul#define GT_IGNORE 0x5 1461558Srgrimes 1471558Srgrimesstruct hostlist { 1489336Sdfr int ht_flag; /* Uses DP_xx bits */ 1491558Srgrimes struct grouplist *ht_grp; 1501558Srgrimes struct hostlist *ht_next; 1511558Srgrimes}; 1521558Srgrimes 1539336Sdfrstruct fhreturn { 1549336Sdfr int fhr_flag; 1559336Sdfr int fhr_vers; 1569336Sdfr nfsfh_t fhr_fh; 157184588Sdfr int fhr_numsecflavors; 158184588Sdfr int *fhr_secflavors; 1599336Sdfr}; 1609336Sdfr 1611558Srgrimes/* Global defs */ 16292882Simpchar *add_expdir(struct dirlist **, char *, int); 16392882Simpvoid add_dlist(struct dirlist **, struct dirlist *, 16492882Simp struct grouplist *, int); 16592882Simpvoid add_mlist(char *, char *); 16692882Simpint check_dirpath(char *); 16792882Simpint check_options(struct dirlist *); 16875801Siedowseint checkmask(struct sockaddr *sa); 16992882Simpint chk_host(struct dirlist *, struct sockaddr *, int *, int *); 170172827Smatteovoid create_service(struct netconfig *nconf); 17175635Siedowsevoid del_mlist(char *hostp, char *dirp); 17292882Simpstruct dirlist *dirp_search(struct dirlist *, char *); 17392882Simpint do_mount(struct exportlist *, struct grouplist *, int, 17492882Simp struct xucred *, char *, int, struct statfs *); 17592882Simpint do_opt(char **, char **, struct exportlist *, struct grouplist *, 17692882Simp int *, int *, struct xucred *); 17792882Simpstruct exportlist *ex_search(fsid_t *); 17892882Simpstruct exportlist *get_exp(void); 17992882Simpvoid free_dir(struct dirlist *); 18092882Simpvoid free_exp(struct exportlist *); 18192882Simpvoid free_grp(struct grouplist *); 18292882Simpvoid free_host(struct hostlist *); 18392882Simpvoid get_exportlist(void); 18492882Simpint get_host(char *, struct grouplist *, struct grouplist *); 18592882Simpstruct hostlist *get_ht(void); 18692882Simpint get_line(void); 18792882Simpvoid get_mountlist(void); 18892882Simpint get_net(char *, struct netmsk *, int); 18992882Simpvoid getexp_err(struct exportlist *, struct grouplist *); 19092882Simpstruct grouplist *get_grp(void); 19192882Simpvoid hang_dirp(struct dirlist *, struct grouplist *, 19292882Simp struct exportlist *, int); 19375754Siedowsevoid huphandler(int sig); 19475801Siedowseint makemask(struct sockaddr_storage *ssp, int bitlen); 19592882Simpvoid mntsrv(struct svc_req *, SVCXPRT *); 19692882Simpvoid nextfield(char **, char **); 19792882Simpvoid out_of_mem(void); 19892882Simpvoid parsecred(char *, struct xucred *); 199216587Scharnierint parsesec(char *, struct exportlist *); 200100117Salfredint put_exlist(struct dirlist *, XDR *, struct dirlist *, int *, int); 20175801Siedowsevoid *sa_rawaddr(struct sockaddr *sa, int *nbytes); 20275801Siedowseint sacmp(struct sockaddr *sa1, struct sockaddr *sa2, 20375801Siedowse struct sockaddr *samask); 20492882Simpint scan_tree(struct dirlist *, struct sockaddr *); 20592882Simpstatic void usage(void); 20692882Simpint xdr_dir(XDR *, char *); 20792882Simpint xdr_explist(XDR *, caddr_t); 208100117Salfredint xdr_explist_brief(XDR *, caddr_t); 209216587Scharnierint xdr_explist_common(XDR *, caddr_t, int); 21092882Simpint xdr_fhs(XDR *, caddr_t); 21192882Simpint xdr_mlist(XDR *, caddr_t); 21292882Simpvoid terminate(int); 2131558Srgrimes 2141558Srgrimesstruct exportlist *exphead; 2151558Srgrimesstruct mountlist *mlhead; 2161558Srgrimesstruct grouplist *grphead; 217166440Spjdchar *exnames_default[2] = { _PATH_EXPORTS, NULL }; 218166440Spjdchar **exnames; 219172827Smatteochar **hosts = NULL; 22072650Sgreenstruct xucred def_anon = { 22191354Sdd XUCRED_VERSION, 22272650Sgreen (uid_t)-2, 2231558Srgrimes 1, 22472650Sgreen { (gid_t)-2 }, 22572650Sgreen NULL 2261558Srgrimes}; 22725087Sdfrint force_v2 = 0; 2289336Sdfrint resvport_only = 1; 229172827Smatteoint nhosts = 0; 2309336Sdfrint dir_only = 1; 231121767Speterint dolog = 0; 23275754Siedowseint got_sighup = 0; 233172827Smatteoint xcreated = 0; 23474462Salfred 235172827Smatteochar *svcport_str = NULL; 236172827Smatteo 2371558Srgrimesint opt_flags; 23874462Salfredstatic int have_v6 = 1; 23974462Salfred 240192934Srmacklemint v4root_phase = 0; 241192934Srmacklemchar v4root_dirpath[PATH_MAX + 1]; 242192934Srmacklemint run_v4server = 0; 243192934Srmacklemint has_publicfh = 0; 244192934Srmacklem 245149433Spjdstruct pidfh *pfh = NULL; 24675801Siedowse/* Bits for opt_flags above */ 2471558Srgrimes#define OP_MAPROOT 0x01 2481558Srgrimes#define OP_MAPALL 0x02 24983653Speter/* 0x4 free */ 2501558Srgrimes#define OP_MASK 0x08 2511558Srgrimes#define OP_NET 0x10 2521558Srgrimes#define OP_ALLDIRS 0x40 25375801Siedowse#define OP_HAVEMASK 0x80 /* A mask was specified or inferred. */ 254100336Sjoerg#define OP_QUIET 0x100 25574462Salfred#define OP_MASKLEN 0x200 256184588Sdfr#define OP_SEC 0x400 2571558Srgrimes 2581558Srgrimes#ifdef DEBUG 2591558Srgrimesint debug = 1; 26092882Simpvoid SYSLOG(int, const char *, ...) __printflike(2, 3); 2611558Srgrimes#define syslog SYSLOG 2621558Srgrimes#else 2631558Srgrimesint debug = 0; 2641558Srgrimes#endif 2651558Srgrimes 2661558Srgrimes/* 2671558Srgrimes * Mountd server for NFS mount protocol as described in: 2681558Srgrimes * NFS: Network File System Protocol Specification, RFC1094, Appendix A 2691558Srgrimes * The optional arguments are the exports file name 2701558Srgrimes * default: _PATH_EXPORTS 2711558Srgrimes * and "-n" to allow nonroot mount. 2721558Srgrimes */ 2731558Srgrimesint 274216587Scharniermain(int argc, char **argv) 2751558Srgrimes{ 27675754Siedowse fd_set readfds; 277172827Smatteo struct netconfig *nconf; 278172827Smatteo char *endptr, **hosts_bak; 279172827Smatteo void *nc_handle; 280149433Spjd pid_t otherpid; 281172827Smatteo in_port_t svcport; 282172827Smatteo int c, k, s; 283109363Smbr int maxrec = RPC_MAXDATASIZE; 2841558Srgrimes 28574462Salfred /* Check that another mountd isn't already running. */ 286150214Spjd pfh = pidfile_open(_PATH_MOUNTDPID, 0600, &otherpid); 287149433Spjd if (pfh == NULL) { 288149433Spjd if (errno == EEXIST) 289149433Spjd errx(1, "mountd already running, pid: %d.", otherpid); 290149433Spjd warn("cannot open or create pidfile"); 291149433Spjd } 29274462Salfred 29374462Salfred s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); 29474462Salfred if (s < 0) 29574462Salfred have_v6 = 0; 29674462Salfred else 29774462Salfred close(s); 2982999Swollman 299192993Srmacklem while ((c = getopt(argc, argv, "2deh:lnp:r")) != -1) 3001558Srgrimes switch (c) { 30125087Sdfr case '2': 30225087Sdfr force_v2 = 1; 30325087Sdfr break; 304192993Srmacklem case 'e': 305192934Srmacklem run_v4server = 1; 306192934Srmacklem break; 3079336Sdfr case 'n': 3089336Sdfr resvport_only = 0; 3099336Sdfr break; 3109336Sdfr case 'r': 3119336Sdfr dir_only = 0; 3129336Sdfr break; 3138688Sphk case 'd': 3148688Sphk debug = debug ? 0 : 1; 3158688Sphk break; 31631656Sguido case 'l': 317121767Speter dolog = 1; 31831656Sguido break; 319126572Sbms case 'p': 320126572Sbms endptr = NULL; 321126572Sbms svcport = (in_port_t)strtoul(optarg, &endptr, 10); 322126572Sbms if (endptr == NULL || *endptr != '\0' || 323126572Sbms svcport == 0 || svcport >= IPPORT_MAX) 324126572Sbms usage(); 325172827Smatteo svcport_str = strdup(optarg); 326126572Sbms break; 327172827Smatteo case 'h': 328172827Smatteo ++nhosts; 329172827Smatteo hosts_bak = hosts; 330172827Smatteo hosts_bak = realloc(hosts, nhosts * sizeof(char *)); 331172827Smatteo if (hosts_bak == NULL) { 332172827Smatteo if (hosts != NULL) { 333172827Smatteo for (k = 0; k < nhosts; k++) 334172827Smatteo free(hosts[k]); 335172827Smatteo free(hosts); 336172827Smatteo out_of_mem(); 337172827Smatteo } 338172827Smatteo } 339172827Smatteo hosts = hosts_bak; 340172827Smatteo hosts[nhosts - 1] = strdup(optarg); 341172827Smatteo if (hosts[nhosts - 1] == NULL) { 342172827Smatteo for (k = 0; k < (nhosts - 1); k++) 343172827Smatteo free(hosts[k]); 344172827Smatteo free(hosts); 345172827Smatteo out_of_mem(); 346172827Smatteo } 347172827Smatteo break; 3481558Srgrimes default: 34937663Scharnier usage(); 3501558Srgrimes }; 351192934Srmacklem 352192934Srmacklem /* 353192993Srmacklem * If the "-e" option was specified OR only the nfsd module is 354192934Srmacklem * found in the server, run "nfsd". 355192934Srmacklem * Otherwise, try and run "nfsserver". 356192934Srmacklem */ 357192934Srmacklem if (run_v4server > 0) { 358192934Srmacklem if (modfind("nfsd") < 0) { 359192934Srmacklem /* Not present in kernel, try loading it */ 360192934Srmacklem if (kldload("nfsd") < 0 || modfind("nfsd") < 0) 361192934Srmacklem errx(1, "NFS server is not available"); 362192934Srmacklem } 363192934Srmacklem } else if (modfind("nfsserver") < 0 && modfind("nfsd") >= 0) { 364192934Srmacklem run_v4server = 1; 365192934Srmacklem } else if (modfind("nfsserver") < 0) { 366192934Srmacklem /* Not present in kernel, try loading it */ 367192934Srmacklem if (kldload("nfsserver") < 0 || modfind("nfsserver") < 0) 368192934Srmacklem errx(1, "NFS server is not available"); 369192934Srmacklem } 370192934Srmacklem 3711558Srgrimes argc -= optind; 3721558Srgrimes argv += optind; 3731558Srgrimes grphead = (struct grouplist *)NULL; 3741558Srgrimes exphead = (struct exportlist *)NULL; 3751558Srgrimes mlhead = (struct mountlist *)NULL; 376166440Spjd if (argc > 0) 377166440Spjd exnames = argv; 378166440Spjd else 379166440Spjd exnames = exnames_default; 3801558Srgrimes openlog("mountd", LOG_PID, LOG_DAEMON); 3811558Srgrimes if (debug) 38237663Scharnier warnx("getting export list"); 3831558Srgrimes get_exportlist(); 3841558Srgrimes if (debug) 38537663Scharnier warnx("getting mount list"); 3861558Srgrimes get_mountlist(); 3871558Srgrimes if (debug) 38837663Scharnier warnx("here we go"); 3891558Srgrimes if (debug == 0) { 3901558Srgrimes daemon(0, 0); 3911558Srgrimes signal(SIGINT, SIG_IGN); 3921558Srgrimes signal(SIGQUIT, SIG_IGN); 3931558Srgrimes } 39475754Siedowse signal(SIGHUP, huphandler); 39574462Salfred signal(SIGTERM, terminate); 396164394Srodrigc signal(SIGPIPE, SIG_IGN); 397149433Spjd 398149433Spjd pidfile_write(pfh); 399149433Spjd 400194880Sdfr rpcb_unset(MOUNTPROG, MOUNTVERS, NULL); 401194880Sdfr rpcb_unset(MOUNTPROG, MOUNTVERS3, NULL); 402109363Smbr rpc_control(RPC_SVC_CONNMAXREC_SET, &maxrec); 403109363Smbr 40424759Sguido if (!resvport_only) { 40583687Speter if (sysctlbyname("vfs.nfsrv.nfs_privport", NULL, NULL, 40683687Speter &resvport_only, sizeof(resvport_only)) != 0 && 40783687Speter errno != ENOENT) { 40824759Sguido syslog(LOG_ERR, "sysctl: %m"); 40924759Sguido exit(1); 41024759Sguido } 41124330Sguido } 412126572Sbms 413172827Smatteo /* 414172827Smatteo * If no hosts were specified, add a wildcard entry to bind to 415172827Smatteo * INADDR_ANY. Otherwise make sure 127.0.0.1 and ::1 are added to the 416172827Smatteo * list. 417172827Smatteo */ 418172827Smatteo if (nhosts == 0) { 419172827Smatteo hosts = malloc(sizeof(char**)); 420172827Smatteo if (hosts == NULL) 421172827Smatteo out_of_mem(); 422172827Smatteo hosts[0] = "*"; 423172827Smatteo nhosts = 1; 424172827Smatteo } else { 425172827Smatteo hosts_bak = hosts; 426172827Smatteo if (have_v6) { 427172827Smatteo hosts_bak = realloc(hosts, (nhosts + 2) * 428172827Smatteo sizeof(char *)); 429172827Smatteo if (hosts_bak == NULL) { 430172827Smatteo for (k = 0; k < nhosts; k++) 431172827Smatteo free(hosts[k]); 432172827Smatteo free(hosts); 433172827Smatteo out_of_mem(); 434172827Smatteo } else 435172827Smatteo hosts = hosts_bak; 436172827Smatteo nhosts += 2; 437172827Smatteo hosts[nhosts - 2] = "::1"; 438172827Smatteo } else { 439172827Smatteo hosts_bak = realloc(hosts, (nhosts + 1) * sizeof(char *)); 440172827Smatteo if (hosts_bak == NULL) { 441172827Smatteo for (k = 0; k < nhosts; k++) 442172827Smatteo free(hosts[k]); 443172827Smatteo free(hosts); 444172827Smatteo out_of_mem(); 445172827Smatteo } else { 446172827Smatteo nhosts += 1; 447172827Smatteo hosts = hosts_bak; 448126572Sbms } 449172827Smatteo } 45074462Salfred 451172827Smatteo hosts[nhosts - 1] = "127.0.0.1"; 45274462Salfred } 45374462Salfred 454172827Smatteo nc_handle = setnetconfig(); 455172827Smatteo while ((nconf = getnetconfig(nc_handle))) { 456172827Smatteo if (nconf->nc_flag & NC_VISIBLE) { 457172827Smatteo if (have_v6 == 0 && strcmp(nconf->nc_protofmly, 458172827Smatteo "inet6") == 0) { 459172827Smatteo /* DO NOTHING */ 460172827Smatteo } else 461172827Smatteo create_service(nconf); 462172827Smatteo } 46374462Salfred } 464172827Smatteo endnetconfig(nc_handle); 46574462Salfred 46674462Salfred if (xcreated == 0) { 46774462Salfred syslog(LOG_ERR, "could not create any services"); 4681558Srgrimes exit(1); 4691558Srgrimes } 47075754Siedowse 47175754Siedowse /* Expand svc_run() here so that we can call get_exportlist(). */ 47275754Siedowse for (;;) { 47375754Siedowse if (got_sighup) { 47475754Siedowse get_exportlist(); 47575754Siedowse got_sighup = 0; 47675754Siedowse } 47775754Siedowse readfds = svc_fdset; 47875754Siedowse switch (select(svc_maxfd + 1, &readfds, NULL, NULL, NULL)) { 47975754Siedowse case -1: 48075754Siedowse if (errno == EINTR) 48175754Siedowse continue; 48275754Siedowse syslog(LOG_ERR, "mountd died: select: %m"); 48375754Siedowse exit(1); 48475754Siedowse case 0: 48575754Siedowse continue; 48675754Siedowse default: 48775754Siedowse svc_getreqset(&readfds); 48875754Siedowse } 48975754Siedowse } 490172827Smatteo} 491172827Smatteo 492172827Smatteo/* 493172827Smatteo * This routine creates and binds sockets on the appropriate 494172827Smatteo * addresses. It gets called one time for each transport and 495172827Smatteo * registrates the service with rpcbind on that trasport. 496172827Smatteo */ 497172827Smatteovoid 498172827Smatteocreate_service(struct netconfig *nconf) 499172827Smatteo{ 500172827Smatteo struct addrinfo hints, *res = NULL; 501172827Smatteo struct sockaddr_in *sin; 502172827Smatteo struct sockaddr_in6 *sin6; 503172827Smatteo struct __rpc_sockinfo si; 504172827Smatteo struct netbuf servaddr; 505172827Smatteo SVCXPRT *transp = NULL; 506172827Smatteo int aicode; 507172827Smatteo int fd; 508172827Smatteo int nhostsbak; 509172827Smatteo int one = 1; 510172827Smatteo int r; 511172827Smatteo int registered = 0; 512172827Smatteo u_int32_t host_addr[4]; /* IPv4 or IPv6 */ 513172827Smatteo 514172827Smatteo if ((nconf->nc_semantics != NC_TPI_CLTS) && 515172827Smatteo (nconf->nc_semantics != NC_TPI_COTS) && 516172827Smatteo (nconf->nc_semantics != NC_TPI_COTS_ORD)) 517172827Smatteo return; /* not my type */ 518172827Smatteo 519172827Smatteo /* 520172827Smatteo * XXX - using RPC library internal functions. 521172827Smatteo */ 522172827Smatteo if (!__rpc_nconf2sockinfo(nconf, &si)) { 523172827Smatteo syslog(LOG_ERR, "cannot get information for %s", 524172827Smatteo nconf->nc_netid); 525172827Smatteo return; 526172827Smatteo } 527172827Smatteo 528172827Smatteo /* Get mountd's address on this transport */ 529172827Smatteo memset(&hints, 0, sizeof hints); 530172827Smatteo hints.ai_flags = AI_PASSIVE; 531172827Smatteo hints.ai_family = si.si_af; 532172827Smatteo hints.ai_socktype = si.si_socktype; 533172827Smatteo hints.ai_protocol = si.si_proto; 534172827Smatteo 535172827Smatteo /* 536172827Smatteo * Bind to specific IPs if asked to 537172827Smatteo */ 538172827Smatteo nhostsbak = nhosts; 539172827Smatteo while (nhostsbak > 0) { 540172827Smatteo --nhostsbak; 541172827Smatteo /* 542172827Smatteo * XXX - using RPC library internal functions. 543172827Smatteo */ 544172827Smatteo if ((fd = __rpc_nconf2fd(nconf)) < 0) { 545172827Smatteo int non_fatal = 0; 546172827Smatteo if (errno == EPROTONOSUPPORT && 547172827Smatteo nconf->nc_semantics != NC_TPI_CLTS) 548172827Smatteo non_fatal = 1; 549172827Smatteo 550172827Smatteo syslog(non_fatal ? LOG_DEBUG : LOG_ERR, 551172827Smatteo "cannot create socket for %s", nconf->nc_netid); 552172827Smatteo return; 553172827Smatteo } 554172827Smatteo 555172827Smatteo switch (hints.ai_family) { 556172827Smatteo case AF_INET: 557172827Smatteo if (inet_pton(AF_INET, hosts[nhostsbak], 558172827Smatteo host_addr) == 1) { 559172827Smatteo hints.ai_flags &= AI_NUMERICHOST; 560172827Smatteo } else { 561172827Smatteo /* 562172827Smatteo * Skip if we have an AF_INET6 address. 563172827Smatteo */ 564172827Smatteo if (inet_pton(AF_INET6, hosts[nhostsbak], 565172827Smatteo host_addr) == 1) { 566172827Smatteo close(fd); 567172827Smatteo continue; 568172827Smatteo } 569172827Smatteo } 570172827Smatteo break; 571172827Smatteo case AF_INET6: 572172827Smatteo if (inet_pton(AF_INET6, hosts[nhostsbak], 573172827Smatteo host_addr) == 1) { 574172827Smatteo hints.ai_flags &= AI_NUMERICHOST; 575172827Smatteo } else { 576172827Smatteo /* 577172827Smatteo * Skip if we have an AF_INET address. 578172827Smatteo */ 579172827Smatteo if (inet_pton(AF_INET, hosts[nhostsbak], 580172827Smatteo host_addr) == 1) { 581172827Smatteo close(fd); 582172827Smatteo continue; 583172827Smatteo } 584172827Smatteo } 585172827Smatteo 586172827Smatteo /* 587172827Smatteo * We're doing host-based access checks here, so don't 588172827Smatteo * allow v4-in-v6 to confuse things. The kernel will 589172827Smatteo * disable it by default on NFS sockets too. 590172827Smatteo */ 591172827Smatteo if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &one, 592172827Smatteo sizeof one) < 0) { 593172827Smatteo syslog(LOG_ERR, 594172827Smatteo "can't disable v4-in-v6 on IPv6 socket"); 595172827Smatteo exit(1); 596172827Smatteo } 597172827Smatteo break; 598172827Smatteo default: 599172827Smatteo break; 600172827Smatteo } 601172827Smatteo 602172827Smatteo /* 603172827Smatteo * If no hosts were specified, just bind to INADDR_ANY 604172827Smatteo */ 605172827Smatteo if (strcmp("*", hosts[nhostsbak]) == 0) { 606172827Smatteo if (svcport_str == NULL) { 607172827Smatteo res = malloc(sizeof(struct addrinfo)); 608172827Smatteo if (res == NULL) 609172827Smatteo out_of_mem(); 610172827Smatteo res->ai_flags = hints.ai_flags; 611172827Smatteo res->ai_family = hints.ai_family; 612172827Smatteo res->ai_protocol = hints.ai_protocol; 613172827Smatteo switch (res->ai_family) { 614172827Smatteo case AF_INET: 615172827Smatteo sin = malloc(sizeof(struct sockaddr_in)); 616172827Smatteo if (sin == NULL) 617172827Smatteo out_of_mem(); 618172827Smatteo sin->sin_family = AF_INET; 619172827Smatteo sin->sin_port = htons(0); 620172827Smatteo sin->sin_addr.s_addr = htonl(INADDR_ANY); 621172827Smatteo res->ai_addr = (struct sockaddr*) sin; 622172827Smatteo res->ai_addrlen = (socklen_t) 623172827Smatteo sizeof(res->ai_addr); 624172827Smatteo break; 625172827Smatteo case AF_INET6: 626172827Smatteo sin6 = malloc(sizeof(struct sockaddr_in6)); 627173056Ssimon if (sin6 == NULL) 628172827Smatteo out_of_mem(); 629172827Smatteo sin6->sin6_family = AF_INET6; 630172827Smatteo sin6->sin6_port = htons(0); 631172827Smatteo sin6->sin6_addr = in6addr_any; 632172827Smatteo res->ai_addr = (struct sockaddr*) sin6; 633172827Smatteo res->ai_addrlen = (socklen_t) 634172827Smatteo sizeof(res->ai_addr); 635172827Smatteo break; 636172827Smatteo default: 637172827Smatteo break; 638172827Smatteo } 639172827Smatteo } else { 640172827Smatteo if ((aicode = getaddrinfo(NULL, svcport_str, 641172827Smatteo &hints, &res)) != 0) { 642172827Smatteo syslog(LOG_ERR, 643172827Smatteo "cannot get local address for %s: %s", 644172827Smatteo nconf->nc_netid, 645172827Smatteo gai_strerror(aicode)); 646172827Smatteo continue; 647172827Smatteo } 648172827Smatteo } 649172827Smatteo } else { 650172827Smatteo if ((aicode = getaddrinfo(hosts[nhostsbak], svcport_str, 651172827Smatteo &hints, &res)) != 0) { 652172827Smatteo syslog(LOG_ERR, 653172827Smatteo "cannot get local address for %s: %s", 654172827Smatteo nconf->nc_netid, gai_strerror(aicode)); 655172827Smatteo continue; 656172827Smatteo } 657172827Smatteo } 658172827Smatteo 659172827Smatteo r = bindresvport_sa(fd, res->ai_addr); 660172827Smatteo if (r != 0) { 661172827Smatteo syslog(LOG_ERR, "bindresvport_sa: %m"); 662172827Smatteo exit(1); 663172827Smatteo } 664172827Smatteo 665172827Smatteo if (nconf->nc_semantics != NC_TPI_CLTS) 666172827Smatteo listen(fd, SOMAXCONN); 667172827Smatteo 668172827Smatteo if (nconf->nc_semantics == NC_TPI_CLTS ) 669172827Smatteo transp = svc_dg_create(fd, 0, 0); 670172827Smatteo else 671172827Smatteo transp = svc_vc_create(fd, RPC_MAXDATASIZE, 672172827Smatteo RPC_MAXDATASIZE); 673172827Smatteo 674172827Smatteo if (transp != (SVCXPRT *) NULL) { 675194880Sdfr if (!svc_reg(transp, MOUNTPROG, MOUNTVERS, mntsrv, 676172827Smatteo NULL)) 677172827Smatteo syslog(LOG_ERR, 678194880Sdfr "can't register %s MOUNTVERS service", 679172827Smatteo nconf->nc_netid); 680172827Smatteo if (!force_v2) { 681194880Sdfr if (!svc_reg(transp, MOUNTPROG, MOUNTVERS3, 682172827Smatteo mntsrv, NULL)) 683172827Smatteo syslog(LOG_ERR, 684194880Sdfr "can't register %s MOUNTVERS3 service", 685172827Smatteo nconf->nc_netid); 686172827Smatteo } 687172827Smatteo } else 688172827Smatteo syslog(LOG_WARNING, "can't create %s services", 689172827Smatteo nconf->nc_netid); 690172827Smatteo 691172827Smatteo if (registered == 0) { 692172827Smatteo registered = 1; 693172827Smatteo memset(&hints, 0, sizeof hints); 694172827Smatteo hints.ai_flags = AI_PASSIVE; 695172827Smatteo hints.ai_family = si.si_af; 696172827Smatteo hints.ai_socktype = si.si_socktype; 697172827Smatteo hints.ai_protocol = si.si_proto; 698172827Smatteo 699172827Smatteo if (svcport_str == NULL) { 700172827Smatteo svcport_str = malloc(NI_MAXSERV * sizeof(char)); 701172827Smatteo if (svcport_str == NULL) 702172827Smatteo out_of_mem(); 703172827Smatteo 704172827Smatteo if (getnameinfo(res->ai_addr, 705172827Smatteo res->ai_addr->sa_len, NULL, NI_MAXHOST, 706172827Smatteo svcport_str, NI_MAXSERV * sizeof(char), 707172827Smatteo NI_NUMERICHOST | NI_NUMERICSERV)) 708172827Smatteo errx(1, "Cannot get port number"); 709172827Smatteo } 710172827Smatteo 711172827Smatteo if((aicode = getaddrinfo(NULL, svcport_str, &hints, 712172827Smatteo &res)) != 0) { 713172827Smatteo syslog(LOG_ERR, "cannot get local address: %s", 714172827Smatteo gai_strerror(aicode)); 715172827Smatteo exit(1); 716172827Smatteo } 717172827Smatteo 718172827Smatteo servaddr.buf = malloc(res->ai_addrlen); 719172827Smatteo memcpy(servaddr.buf, res->ai_addr, res->ai_addrlen); 720172827Smatteo servaddr.len = res->ai_addrlen; 721172827Smatteo 722194880Sdfr rpcb_set(MOUNTPROG, MOUNTVERS, nconf, &servaddr); 723194880Sdfr rpcb_set(MOUNTPROG, MOUNTVERS3, nconf, &servaddr); 724172827Smatteo 725172827Smatteo xcreated++; 726172827Smatteo freeaddrinfo(res); 727172827Smatteo } 728172827Smatteo } /* end while */ 7291558Srgrimes} 7301558Srgrimes 73137663Scharnierstatic void 732216587Scharnierusage(void) 73337663Scharnier{ 73437663Scharnier fprintf(stderr, 735192993Srmacklem "usage: mountd [-2] [-d] [-e] [-l] [-n] [-p <port>] [-r] " 736172827Smatteo "[-h <bindip>] [export_file ...]\n"); 73737663Scharnier exit(1); 73837663Scharnier} 73937663Scharnier 7401558Srgrimes/* 7411558Srgrimes * The mount rpc service 7421558Srgrimes */ 7431558Srgrimesvoid 744216587Scharniermntsrv(struct svc_req *rqstp, SVCXPRT *transp) 7451558Srgrimes{ 7461558Srgrimes struct exportlist *ep; 7471558Srgrimes struct dirlist *dp; 7489336Sdfr struct fhreturn fhr; 7491558Srgrimes struct stat stb; 7501558Srgrimes struct statfs fsb; 75174462Salfred char host[NI_MAXHOST], numerichost[NI_MAXHOST]; 75274462Salfred int lookup_failed = 1; 75374462Salfred struct sockaddr *saddr; 7549336Sdfr u_short sport; 755194880Sdfr char rpcpath[MNTPATHLEN + 1], dirpath[MAXPATHLEN]; 75628911Sguido int bad = 0, defset, hostset; 7579336Sdfr sigset_t sighup_mask; 7581558Srgrimes 7599336Sdfr sigemptyset(&sighup_mask); 7609336Sdfr sigaddset(&sighup_mask, SIGHUP); 76174462Salfred saddr = svc_getrpccaller(transp)->buf; 76274462Salfred switch (saddr->sa_family) { 76374462Salfred case AF_INET6: 76475635Siedowse sport = ntohs(((struct sockaddr_in6 *)saddr)->sin6_port); 76574462Salfred break; 76674462Salfred case AF_INET: 76775635Siedowse sport = ntohs(((struct sockaddr_in *)saddr)->sin_port); 76874462Salfred break; 76974462Salfred default: 77074462Salfred syslog(LOG_ERR, "request from unknown address family"); 77174462Salfred return; 77274462Salfred } 77374462Salfred lookup_failed = getnameinfo(saddr, saddr->sa_len, host, sizeof host, 77474462Salfred NULL, 0, 0); 77574462Salfred getnameinfo(saddr, saddr->sa_len, numerichost, 77674462Salfred sizeof numerichost, NULL, 0, NI_NUMERICHOST); 7771558Srgrimes switch (rqstp->rq_proc) { 7781558Srgrimes case NULLPROC: 779121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_void, NULL)) 78037663Scharnier syslog(LOG_ERR, "can't send reply"); 7811558Srgrimes return; 782194880Sdfr case MOUNTPROC_MNT: 7839336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 78431656Sguido syslog(LOG_NOTICE, 78531656Sguido "mount request from %s from unprivileged port", 78674462Salfred numerichost); 7871558Srgrimes svcerr_weakauth(transp); 7881558Srgrimes return; 7891558Srgrimes } 790121556Speter if (!svc_getargs(transp, (xdrproc_t)xdr_dir, rpcpath)) { 79131656Sguido syslog(LOG_NOTICE, "undecodable mount request from %s", 79274462Salfred numerichost); 7931558Srgrimes svcerr_decode(transp); 7941558Srgrimes return; 7951558Srgrimes } 7961558Srgrimes 7971558Srgrimes /* 7981558Srgrimes * Get the real pathname and make sure it is a directory 7999336Sdfr * or a regular file if the -r option was specified 8009336Sdfr * and it exists. 8011558Srgrimes */ 80251968Salfred if (realpath(rpcpath, dirpath) == NULL || 8031558Srgrimes stat(dirpath, &stb) < 0 || 8049336Sdfr (!S_ISDIR(stb.st_mode) && 80574462Salfred (dir_only || !S_ISREG(stb.st_mode))) || 8061558Srgrimes statfs(dirpath, &fsb) < 0) { 8071558Srgrimes chdir("/"); /* Just in case realpath doesn't */ 80831656Sguido syslog(LOG_NOTICE, 80937663Scharnier "mount request from %s for non existent path %s", 81074462Salfred numerichost, dirpath); 8111558Srgrimes if (debug) 81237663Scharnier warnx("stat failed on %s", dirpath); 81328911Sguido bad = ENOENT; /* We will send error reply later */ 8141558Srgrimes } 8151558Srgrimes 8161558Srgrimes /* Check in the exports list */ 8179336Sdfr sigprocmask(SIG_BLOCK, &sighup_mask, NULL); 8181558Srgrimes ep = ex_search(&fsb.f_fsid); 8199336Sdfr hostset = defset = 0; 8209336Sdfr if (ep && (chk_host(ep->ex_defdir, saddr, &defset, &hostset) || 8211558Srgrimes ((dp = dirp_search(ep->ex_dirl, dirpath)) && 82274462Salfred chk_host(dp, saddr, &defset, &hostset)) || 82374462Salfred (defset && scan_tree(ep->ex_defdir, saddr) == 0 && 82474462Salfred scan_tree(ep->ex_dirl, saddr) == 0))) { 82528911Sguido if (bad) { 826121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_long, 82728911Sguido (caddr_t)&bad)) 82837663Scharnier syslog(LOG_ERR, "can't send reply"); 82928911Sguido sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 83028911Sguido return; 83128911Sguido } 8329336Sdfr if (hostset & DP_HOSTSET) 8339336Sdfr fhr.fhr_flag = hostset; 8349336Sdfr else 8359336Sdfr fhr.fhr_flag = defset; 8369336Sdfr fhr.fhr_vers = rqstp->rq_vers; 8371558Srgrimes /* Get the file handle */ 83823681Speter memset(&fhr.fhr_fh, 0, sizeof(nfsfh_t)); 8399336Sdfr if (getfh(dirpath, (fhandle_t *)&fhr.fhr_fh) < 0) { 8401558Srgrimes bad = errno; 84137663Scharnier syslog(LOG_ERR, "can't get fh for %s", dirpath); 842121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_long, 8431558Srgrimes (caddr_t)&bad)) 84437663Scharnier syslog(LOG_ERR, "can't send reply"); 8459336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 8461558Srgrimes return; 8471558Srgrimes } 848184588Sdfr fhr.fhr_numsecflavors = ep->ex_numsecflavors; 849184588Sdfr fhr.fhr_secflavors = ep->ex_secflavors; 850121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_fhs, 851121556Speter (caddr_t)&fhr)) 85237663Scharnier syslog(LOG_ERR, "can't send reply"); 85374462Salfred if (!lookup_failed) 85474462Salfred add_mlist(host, dirpath); 8551558Srgrimes else 85674462Salfred add_mlist(numerichost, dirpath); 8571558Srgrimes if (debug) 85837663Scharnier warnx("mount successful"); 859121767Speter if (dolog) 86031656Sguido syslog(LOG_NOTICE, 86131656Sguido "mount request succeeded from %s for %s", 86274462Salfred numerichost, dirpath); 86331656Sguido } else { 8641558Srgrimes bad = EACCES; 86531656Sguido syslog(LOG_NOTICE, 86631656Sguido "mount request denied from %s for %s", 86774462Salfred numerichost, dirpath); 86831656Sguido } 86928911Sguido 870121556Speter if (bad && !svc_sendreply(transp, (xdrproc_t)xdr_long, 871121556Speter (caddr_t)&bad)) 87237663Scharnier syslog(LOG_ERR, "can't send reply"); 8739336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 8741558Srgrimes return; 875194880Sdfr case MOUNTPROC_DUMP: 876121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_mlist, (caddr_t)NULL)) 87737663Scharnier syslog(LOG_ERR, "can't send reply"); 878121767Speter else if (dolog) 87931656Sguido syslog(LOG_NOTICE, 88031656Sguido "dump request succeeded from %s", 88174462Salfred numerichost); 8821558Srgrimes return; 883194880Sdfr case MOUNTPROC_UMNT: 8849336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 88531656Sguido syslog(LOG_NOTICE, 88631656Sguido "umount request from %s from unprivileged port", 88774462Salfred numerichost); 8881558Srgrimes svcerr_weakauth(transp); 8891558Srgrimes return; 8901558Srgrimes } 891121556Speter if (!svc_getargs(transp, (xdrproc_t)xdr_dir, rpcpath)) { 89231656Sguido syslog(LOG_NOTICE, "undecodable umount request from %s", 89374462Salfred numerichost); 8941558Srgrimes svcerr_decode(transp); 8951558Srgrimes return; 8961558Srgrimes } 89751968Salfred if (realpath(rpcpath, dirpath) == NULL) { 89851968Salfred syslog(LOG_NOTICE, "umount request from %s " 89951968Salfred "for non existent path %s", 90074462Salfred numerichost, dirpath); 90151968Salfred } 902121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_void, (caddr_t)NULL)) 90337663Scharnier syslog(LOG_ERR, "can't send reply"); 90474462Salfred if (!lookup_failed) 90575635Siedowse del_mlist(host, dirpath); 90675635Siedowse del_mlist(numerichost, dirpath); 907121767Speter if (dolog) 90831656Sguido syslog(LOG_NOTICE, 90931656Sguido "umount request succeeded from %s for %s", 91074462Salfred numerichost, dirpath); 9111558Srgrimes return; 912194880Sdfr case MOUNTPROC_UMNTALL: 9139336Sdfr if (sport >= IPPORT_RESERVED && resvport_only) { 91431656Sguido syslog(LOG_NOTICE, 91531656Sguido "umountall request from %s from unprivileged port", 91674462Salfred numerichost); 9171558Srgrimes svcerr_weakauth(transp); 9181558Srgrimes return; 9191558Srgrimes } 920121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_void, (caddr_t)NULL)) 92137663Scharnier syslog(LOG_ERR, "can't send reply"); 92274462Salfred if (!lookup_failed) 92375635Siedowse del_mlist(host, NULL); 92475635Siedowse del_mlist(numerichost, NULL); 925121767Speter if (dolog) 92631656Sguido syslog(LOG_NOTICE, 92731656Sguido "umountall request succeeded from %s", 92874462Salfred numerichost); 9291558Srgrimes return; 930194880Sdfr case MOUNTPROC_EXPORT: 931121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_explist, (caddr_t)NULL)) 932121556Speter if (!svc_sendreply(transp, (xdrproc_t)xdr_explist_brief, 933121556Speter (caddr_t)NULL)) 934100117Salfred syslog(LOG_ERR, "can't send reply"); 935121767Speter if (dolog) 93631656Sguido syslog(LOG_NOTICE, 93731656Sguido "export request succeeded from %s", 93874462Salfred numerichost); 9391558Srgrimes return; 9401558Srgrimes default: 9411558Srgrimes svcerr_noproc(transp); 9421558Srgrimes return; 9431558Srgrimes } 9441558Srgrimes} 9451558Srgrimes 9461558Srgrimes/* 9471558Srgrimes * Xdr conversion for a dirpath string 9481558Srgrimes */ 9491558Srgrimesint 950216587Scharnierxdr_dir(XDR *xdrsp, char *dirp) 9511558Srgrimes{ 952194880Sdfr return (xdr_string(xdrsp, &dirp, MNTPATHLEN)); 9531558Srgrimes} 9541558Srgrimes 9551558Srgrimes/* 9569336Sdfr * Xdr routine to generate file handle reply 9571558Srgrimes */ 9581558Srgrimesint 959216587Scharnierxdr_fhs(XDR *xdrsp, caddr_t cp) 9601558Srgrimes{ 96192806Sobrien struct fhreturn *fhrp = (struct fhreturn *)cp; 9629336Sdfr u_long ok = 0, len, auth; 963184588Sdfr int i; 9641558Srgrimes 9651558Srgrimes if (!xdr_long(xdrsp, &ok)) 9661558Srgrimes return (0); 9679336Sdfr switch (fhrp->fhr_vers) { 9689336Sdfr case 1: 9699336Sdfr return (xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, NFSX_V2FH)); 9709336Sdfr case 3: 9719336Sdfr len = NFSX_V3FH; 9729336Sdfr if (!xdr_long(xdrsp, &len)) 9739336Sdfr return (0); 9749336Sdfr if (!xdr_opaque(xdrsp, (caddr_t)&fhrp->fhr_fh, len)) 9759336Sdfr return (0); 976184588Sdfr if (fhrp->fhr_numsecflavors) { 977184588Sdfr if (!xdr_int(xdrsp, &fhrp->fhr_numsecflavors)) 978184588Sdfr return (0); 979184588Sdfr for (i = 0; i < fhrp->fhr_numsecflavors; i++) 980184588Sdfr if (!xdr_int(xdrsp, &fhrp->fhr_secflavors[i])) 981184588Sdfr return (0); 982184588Sdfr return (1); 983184588Sdfr } else { 984184588Sdfr auth = AUTH_SYS; 985184588Sdfr len = 1; 986184588Sdfr if (!xdr_long(xdrsp, &len)) 987184588Sdfr return (0); 988184588Sdfr return (xdr_long(xdrsp, &auth)); 989184588Sdfr } 9909336Sdfr }; 9919336Sdfr return (0); 9921558Srgrimes} 9931558Srgrimes 9941558Srgrimesint 995216587Scharnierxdr_mlist(XDR *xdrsp, caddr_t cp __unused) 9961558Srgrimes{ 9971558Srgrimes struct mountlist *mlp; 9981558Srgrimes int true = 1; 9991558Srgrimes int false = 0; 10001558Srgrimes char *strp; 10011558Srgrimes 10021558Srgrimes mlp = mlhead; 10031558Srgrimes while (mlp) { 10041558Srgrimes if (!xdr_bool(xdrsp, &true)) 10051558Srgrimes return (0); 10061558Srgrimes strp = &mlp->ml_host[0]; 1007194880Sdfr if (!xdr_string(xdrsp, &strp, MNTNAMLEN)) 10081558Srgrimes return (0); 10091558Srgrimes strp = &mlp->ml_dirp[0]; 1010194880Sdfr if (!xdr_string(xdrsp, &strp, MNTPATHLEN)) 10111558Srgrimes return (0); 10121558Srgrimes mlp = mlp->ml_next; 10131558Srgrimes } 10141558Srgrimes if (!xdr_bool(xdrsp, &false)) 10151558Srgrimes return (0); 10161558Srgrimes return (1); 10171558Srgrimes} 10181558Srgrimes 10191558Srgrimes/* 10201558Srgrimes * Xdr conversion for export list 10211558Srgrimes */ 10221558Srgrimesint 1023216587Scharnierxdr_explist_common(XDR *xdrsp, caddr_t cp __unused, int brief) 10241558Srgrimes{ 10251558Srgrimes struct exportlist *ep; 10261558Srgrimes int false = 0; 10279336Sdfr int putdef; 10289336Sdfr sigset_t sighup_mask; 10291558Srgrimes 10309336Sdfr sigemptyset(&sighup_mask); 10319336Sdfr sigaddset(&sighup_mask, SIGHUP); 10329336Sdfr sigprocmask(SIG_BLOCK, &sighup_mask, NULL); 10331558Srgrimes ep = exphead; 10341558Srgrimes while (ep) { 10351558Srgrimes putdef = 0; 1036100117Salfred if (put_exlist(ep->ex_dirl, xdrsp, ep->ex_defdir, 1037100117Salfred &putdef, brief)) 10381558Srgrimes goto errout; 10391558Srgrimes if (ep->ex_defdir && putdef == 0 && 10401558Srgrimes put_exlist(ep->ex_defdir, xdrsp, (struct dirlist *)NULL, 1041100117Salfred &putdef, brief)) 10421558Srgrimes goto errout; 10431558Srgrimes ep = ep->ex_next; 10441558Srgrimes } 10459336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 10461558Srgrimes if (!xdr_bool(xdrsp, &false)) 10471558Srgrimes return (0); 10481558Srgrimes return (1); 10491558Srgrimeserrout: 10509336Sdfr sigprocmask(SIG_UNBLOCK, &sighup_mask, NULL); 10511558Srgrimes return (0); 10521558Srgrimes} 10531558Srgrimes 10541558Srgrimes/* 10551558Srgrimes * Called from xdr_explist() to traverse the tree and export the 10561558Srgrimes * directory paths. 10571558Srgrimes */ 10581558Srgrimesint 1059216587Scharnierput_exlist(struct dirlist *dp, XDR *xdrsp, struct dirlist *adp, int *putdefp, 1060216587Scharnier int brief) 10611558Srgrimes{ 10621558Srgrimes struct grouplist *grp; 10631558Srgrimes struct hostlist *hp; 10641558Srgrimes int true = 1; 10651558Srgrimes int false = 0; 10661558Srgrimes int gotalldir = 0; 10671558Srgrimes char *strp; 10681558Srgrimes 10691558Srgrimes if (dp) { 1070100117Salfred if (put_exlist(dp->dp_left, xdrsp, adp, putdefp, brief)) 10711558Srgrimes return (1); 10721558Srgrimes if (!xdr_bool(xdrsp, &true)) 10731558Srgrimes return (1); 10741558Srgrimes strp = dp->dp_dirp; 1075194880Sdfr if (!xdr_string(xdrsp, &strp, MNTPATHLEN)) 10761558Srgrimes return (1); 10771558Srgrimes if (adp && !strcmp(dp->dp_dirp, adp->dp_dirp)) { 10781558Srgrimes gotalldir = 1; 10791558Srgrimes *putdefp = 1; 10801558Srgrimes } 1081100117Salfred if (brief) { 1082100117Salfred if (!xdr_bool(xdrsp, &true)) 1083100117Salfred return (1); 1084100117Salfred strp = "(...)"; 1085194880Sdfr if (!xdr_string(xdrsp, &strp, MNTPATHLEN)) 1086100117Salfred return (1); 1087100117Salfred } else if ((dp->dp_flag & DP_DEFSET) == 0 && 10881558Srgrimes (gotalldir == 0 || (adp->dp_flag & DP_DEFSET) == 0)) { 10891558Srgrimes hp = dp->dp_hosts; 10901558Srgrimes while (hp) { 10911558Srgrimes grp = hp->ht_grp; 10921558Srgrimes if (grp->gr_type == GT_HOST) { 10931558Srgrimes if (!xdr_bool(xdrsp, &true)) 10941558Srgrimes return (1); 109574462Salfred strp = grp->gr_ptr.gt_addrinfo->ai_canonname; 10968871Srgrimes if (!xdr_string(xdrsp, &strp, 1097194880Sdfr MNTNAMLEN)) 10981558Srgrimes return (1); 10991558Srgrimes } else if (grp->gr_type == GT_NET) { 11001558Srgrimes if (!xdr_bool(xdrsp, &true)) 11011558Srgrimes return (1); 11021558Srgrimes strp = grp->gr_ptr.gt_net.nt_name; 11038871Srgrimes if (!xdr_string(xdrsp, &strp, 1104194880Sdfr MNTNAMLEN)) 11051558Srgrimes return (1); 11061558Srgrimes } 11071558Srgrimes hp = hp->ht_next; 11081558Srgrimes if (gotalldir && hp == (struct hostlist *)NULL) { 11091558Srgrimes hp = adp->dp_hosts; 11101558Srgrimes gotalldir = 0; 11111558Srgrimes } 11121558Srgrimes } 11131558Srgrimes } 11141558Srgrimes if (!xdr_bool(xdrsp, &false)) 11151558Srgrimes return (1); 1116100117Salfred if (put_exlist(dp->dp_right, xdrsp, adp, putdefp, brief)) 11171558Srgrimes return (1); 11181558Srgrimes } 11191558Srgrimes return (0); 11201558Srgrimes} 11211558Srgrimes 1122100117Salfredint 1123216587Scharnierxdr_explist(XDR *xdrsp, caddr_t cp) 1124100117Salfred{ 1125100117Salfred 1126100117Salfred return xdr_explist_common(xdrsp, cp, 0); 1127100117Salfred} 1128100117Salfred 1129100117Salfredint 1130216587Scharnierxdr_explist_brief(XDR *xdrsp, caddr_t cp) 1131100117Salfred{ 1132100117Salfred 1133100117Salfred return xdr_explist_common(xdrsp, cp, 1); 1134100117Salfred} 1135100117Salfred 113696622Siedowsechar *line; 113796622Siedowseint linesize; 11381558SrgrimesFILE *exp_file; 11391558Srgrimes 11401558Srgrimes/* 1141166440Spjd * Get the export list from one, currently open file 11421558Srgrimes */ 1143166440Spjdstatic void 1144216587Scharnierget_exportlist_one(void) 11451558Srgrimes{ 11461558Srgrimes struct exportlist *ep, *ep2; 11471558Srgrimes struct grouplist *grp, *tgrp; 11481558Srgrimes struct exportlist **epp; 11491558Srgrimes struct dirlist *dirhead; 1150166440Spjd struct statfs fsb; 115172650Sgreen struct xucred anon; 11521558Srgrimes char *cp, *endcp, *dirp, *hst, *usr, *dom, savedc; 1153166440Spjd int len, has_host, exflags, got_nondir, dirplen, netgrp; 11541558Srgrimes 1155192934Srmacklem v4root_phase = 0; 11561558Srgrimes dirhead = (struct dirlist *)NULL; 11571558Srgrimes while (get_line()) { 11581558Srgrimes if (debug) 115937663Scharnier warnx("got line %s", line); 11601558Srgrimes cp = line; 11611558Srgrimes nextfield(&cp, &endcp); 11621558Srgrimes if (*cp == '#') 11631558Srgrimes goto nextline; 11641558Srgrimes 11651558Srgrimes /* 11661558Srgrimes * Set defaults. 11671558Srgrimes */ 11681558Srgrimes has_host = FALSE; 11691558Srgrimes anon = def_anon; 11701558Srgrimes exflags = MNT_EXPORTED; 11711558Srgrimes got_nondir = 0; 11721558Srgrimes opt_flags = 0; 11731558Srgrimes ep = (struct exportlist *)NULL; 1174192934Srmacklem dirp = NULL; 11751558Srgrimes 11761558Srgrimes /* 1177192934Srmacklem * Handle the V4 root dir. 1178192934Srmacklem */ 1179192934Srmacklem if (*cp == 'V' && *(cp + 1) == '4' && *(cp + 2) == ':') { 1180192934Srmacklem /* 1181192934Srmacklem * V4: just indicates that it is the v4 root point, 1182192934Srmacklem * so skip over that and set v4root_phase. 1183192934Srmacklem */ 1184192934Srmacklem if (v4root_phase > 0) { 1185192934Srmacklem syslog(LOG_ERR, "V4:duplicate line, ignored"); 1186192934Srmacklem goto nextline; 1187192934Srmacklem } 1188192934Srmacklem v4root_phase = 1; 1189192934Srmacklem cp += 3; 1190192934Srmacklem nextfield(&cp, &endcp); 1191192934Srmacklem } 1192192934Srmacklem 1193192934Srmacklem /* 11941558Srgrimes * Create new exports list entry 11951558Srgrimes */ 11961558Srgrimes len = endcp-cp; 11971558Srgrimes tgrp = grp = get_grp(); 11981558Srgrimes while (len > 0) { 1199194880Sdfr if (len > MNTNAMLEN) { 12001558Srgrimes getexp_err(ep, tgrp); 12011558Srgrimes goto nextline; 12021558Srgrimes } 12031558Srgrimes if (*cp == '-') { 12041558Srgrimes if (ep == (struct exportlist *)NULL) { 12051558Srgrimes getexp_err(ep, tgrp); 12061558Srgrimes goto nextline; 12071558Srgrimes } 12081558Srgrimes if (debug) 120937663Scharnier warnx("doing opt %s", cp); 12101558Srgrimes got_nondir = 1; 12111558Srgrimes if (do_opt(&cp, &endcp, ep, grp, &has_host, 12121558Srgrimes &exflags, &anon)) { 12131558Srgrimes getexp_err(ep, tgrp); 12141558Srgrimes goto nextline; 12151558Srgrimes } 12161558Srgrimes } else if (*cp == '/') { 12171558Srgrimes savedc = *endcp; 12181558Srgrimes *endcp = '\0'; 1219192934Srmacklem if (v4root_phase > 1) { 1220192934Srmacklem if (dirp != NULL) { 1221192934Srmacklem syslog(LOG_ERR, "Multiple V4 dirs"); 1222192934Srmacklem getexp_err(ep, tgrp); 1223192934Srmacklem goto nextline; 1224192934Srmacklem } 1225192934Srmacklem } 12261558Srgrimes if (check_dirpath(cp) && 12271558Srgrimes statfs(cp, &fsb) >= 0) { 12281558Srgrimes if (got_nondir) { 122937663Scharnier syslog(LOG_ERR, "dirs must be first"); 12301558Srgrimes getexp_err(ep, tgrp); 12311558Srgrimes goto nextline; 12321558Srgrimes } 1233192934Srmacklem if (v4root_phase == 1) { 1234192934Srmacklem if (dirp != NULL) { 1235192934Srmacklem syslog(LOG_ERR, "Multiple V4 dirs"); 12361558Srgrimes getexp_err(ep, tgrp); 12371558Srgrimes goto nextline; 12381558Srgrimes } 1239192934Srmacklem if (strlen(v4root_dirpath) == 0) { 1240192934Srmacklem strlcpy(v4root_dirpath, cp, 1241192934Srmacklem sizeof (v4root_dirpath)); 1242192934Srmacklem } else if (strcmp(v4root_dirpath, cp) 1243192934Srmacklem != 0) { 1244192934Srmacklem syslog(LOG_ERR, 1245192934Srmacklem "different V4 dirpath %s", cp); 1246192934Srmacklem getexp_err(ep, tgrp); 1247192934Srmacklem goto nextline; 1248192934Srmacklem } 1249192934Srmacklem dirp = cp; 1250192934Srmacklem v4root_phase = 2; 1251192934Srmacklem got_nondir = 1; 1252192934Srmacklem ep = get_exp(); 12531558Srgrimes } else { 1254192934Srmacklem if (ep) { 1255192934Srmacklem if (ep->ex_fs.val[0] != 1256192934Srmacklem fsb.f_fsid.val[0] || 1257192934Srmacklem ep->ex_fs.val[1] != 1258192934Srmacklem fsb.f_fsid.val[1]) { 1259192934Srmacklem getexp_err(ep, tgrp); 1260192934Srmacklem goto nextline; 1261192934Srmacklem } 1262192934Srmacklem } else { 1263192934Srmacklem /* 1264192934Srmacklem * See if this directory is already 1265192934Srmacklem * in the list. 1266192934Srmacklem */ 1267192934Srmacklem ep = ex_search(&fsb.f_fsid); 1268192934Srmacklem if (ep == (struct exportlist *)NULL) { 1269192934Srmacklem ep = get_exp(); 1270192934Srmacklem ep->ex_fs = fsb.f_fsid; 1271192934Srmacklem ep->ex_fsdir = (char *)malloc 1272192934Srmacklem (strlen(fsb.f_mntonname) + 1); 1273192934Srmacklem if (ep->ex_fsdir) 1274192934Srmacklem strcpy(ep->ex_fsdir, 1275192934Srmacklem fsb.f_mntonname); 1276192934Srmacklem else 1277192934Srmacklem out_of_mem(); 1278192934Srmacklem if (debug) 1279192934Srmacklem warnx( 1280192934Srmacklem "making new ep fs=0x%x,0x%x", 1281192934Srmacklem fsb.f_fsid.val[0], 1282192934Srmacklem fsb.f_fsid.val[1]); 1283192934Srmacklem } else if (debug) 1284192934Srmacklem warnx("found ep fs=0x%x,0x%x", 1285192934Srmacklem fsb.f_fsid.val[0], 1286192934Srmacklem fsb.f_fsid.val[1]); 1287192934Srmacklem } 1288192934Srmacklem 12891558Srgrimes /* 1290192934Srmacklem * Add dirpath to export mount point. 12911558Srgrimes */ 1292192934Srmacklem dirp = add_expdir(&dirhead, cp, len); 1293192934Srmacklem dirplen = len; 12941558Srgrimes } 12951558Srgrimes } else { 12961558Srgrimes getexp_err(ep, tgrp); 12971558Srgrimes goto nextline; 12981558Srgrimes } 12991558Srgrimes *endcp = savedc; 13001558Srgrimes } else { 13011558Srgrimes savedc = *endcp; 13021558Srgrimes *endcp = '\0'; 13031558Srgrimes got_nondir = 1; 13041558Srgrimes if (ep == (struct exportlist *)NULL) { 13051558Srgrimes getexp_err(ep, tgrp); 13061558Srgrimes goto nextline; 13071558Srgrimes } 13081558Srgrimes 13091558Srgrimes /* 13101558Srgrimes * Get the host or netgroup. 13111558Srgrimes */ 13121558Srgrimes setnetgrent(cp); 13131558Srgrimes netgrp = getnetgrent(&hst, &usr, &dom); 13141558Srgrimes do { 13151558Srgrimes if (has_host) { 13161558Srgrimes grp->gr_next = get_grp(); 13171558Srgrimes grp = grp->gr_next; 13181558Srgrimes } 13191558Srgrimes if (netgrp) { 132037003Sjoerg if (hst == 0) { 132137663Scharnier syslog(LOG_ERR, 132237663Scharnier "null hostname in netgroup %s, skipping", cp); 132337004Sjoerg grp->gr_type = GT_IGNORE; 132437003Sjoerg } else if (get_host(hst, grp, tgrp)) { 132537663Scharnier syslog(LOG_ERR, 132637663Scharnier "bad host %s in netgroup %s, skipping", hst, cp); 132729317Sjlemon grp->gr_type = GT_IGNORE; 13281558Srgrimes } 13297401Swpaul } else if (get_host(cp, grp, tgrp)) { 133037663Scharnier syslog(LOG_ERR, "bad host %s, skipping", cp); 133129317Sjlemon grp->gr_type = GT_IGNORE; 13321558Srgrimes } 13331558Srgrimes has_host = TRUE; 13341558Srgrimes } while (netgrp && getnetgrent(&hst, &usr, &dom)); 13351558Srgrimes endnetgrent(); 13361558Srgrimes *endcp = savedc; 13371558Srgrimes } 13381558Srgrimes cp = endcp; 13391558Srgrimes nextfield(&cp, &endcp); 13401558Srgrimes len = endcp - cp; 13411558Srgrimes } 13421558Srgrimes if (check_options(dirhead)) { 13431558Srgrimes getexp_err(ep, tgrp); 13441558Srgrimes goto nextline; 13451558Srgrimes } 13461558Srgrimes if (!has_host) { 134775641Siedowse grp->gr_type = GT_DEFAULT; 13481558Srgrimes if (debug) 134937663Scharnier warnx("adding a default entry"); 13501558Srgrimes 13511558Srgrimes /* 13521558Srgrimes * Don't allow a network export coincide with a list of 13531558Srgrimes * host(s) on the same line. 13541558Srgrimes */ 13551558Srgrimes } else if ((opt_flags & OP_NET) && tgrp->gr_next) { 135675801Siedowse syslog(LOG_ERR, "network/host conflict"); 13571558Srgrimes getexp_err(ep, tgrp); 13581558Srgrimes goto nextline; 135929317Sjlemon 136074462Salfred /* 136174462Salfred * If an export list was specified on this line, make sure 136229317Sjlemon * that we have at least one valid entry, otherwise skip it. 136329317Sjlemon */ 136429317Sjlemon } else { 136529317Sjlemon grp = tgrp; 136674462Salfred while (grp && grp->gr_type == GT_IGNORE) 136729317Sjlemon grp = grp->gr_next; 136829317Sjlemon if (! grp) { 136929317Sjlemon getexp_err(ep, tgrp); 137029317Sjlemon goto nextline; 137129317Sjlemon } 13721558Srgrimes } 13731558Srgrimes 1374192934Srmacklem if (v4root_phase == 1) { 1375192934Srmacklem syslog(LOG_ERR, "V4:root, no dirp, ignored"); 1376192934Srmacklem getexp_err(ep, tgrp); 1377192934Srmacklem goto nextline; 1378192934Srmacklem } 1379192934Srmacklem 13801558Srgrimes /* 13811558Srgrimes * Loop through hosts, pushing the exports into the kernel. 13821558Srgrimes * After loop, tgrp points to the start of the list and 13831558Srgrimes * grp points to the last entry in the list. 13841558Srgrimes */ 13851558Srgrimes grp = tgrp; 13861558Srgrimes do { 138775635Siedowse if (do_mount(ep, grp, exflags, &anon, dirp, dirplen, 138875635Siedowse &fsb)) { 138975635Siedowse getexp_err(ep, tgrp); 139075635Siedowse goto nextline; 139175635Siedowse } 13921558Srgrimes } while (grp->gr_next && (grp = grp->gr_next)); 13931558Srgrimes 13941558Srgrimes /* 1395192934Srmacklem * For V4: don't enter in mount lists. 1396192934Srmacklem */ 1397194773Srmacklem if (v4root_phase > 0 && v4root_phase <= 2) { 1398194773Srmacklem /* 1399194773Srmacklem * Since these structures aren't used by mountd, 1400194773Srmacklem * free them up now. 1401194773Srmacklem */ 1402194773Srmacklem if (ep != NULL) 1403194773Srmacklem free_exp(ep); 1404194773Srmacklem while (tgrp != NULL) { 1405194773Srmacklem grp = tgrp; 1406194773Srmacklem tgrp = tgrp->gr_next; 1407194773Srmacklem free_grp(grp); 1408194773Srmacklem } 1409192934Srmacklem goto nextline; 1410194773Srmacklem } 1411192934Srmacklem 1412192934Srmacklem /* 14131558Srgrimes * Success. Update the data structures. 14141558Srgrimes */ 14151558Srgrimes if (has_host) { 14169336Sdfr hang_dirp(dirhead, tgrp, ep, opt_flags); 14171558Srgrimes grp->gr_next = grphead; 14181558Srgrimes grphead = tgrp; 14191558Srgrimes } else { 14201558Srgrimes hang_dirp(dirhead, (struct grouplist *)NULL, ep, 14219336Sdfr opt_flags); 14221558Srgrimes free_grp(grp); 14231558Srgrimes } 14241558Srgrimes dirhead = (struct dirlist *)NULL; 14251558Srgrimes if ((ep->ex_flag & EX_LINKED) == 0) { 14261558Srgrimes ep2 = exphead; 14271558Srgrimes epp = &exphead; 14281558Srgrimes 14291558Srgrimes /* 14301558Srgrimes * Insert in the list in alphabetical order. 14311558Srgrimes */ 14321558Srgrimes while (ep2 && strcmp(ep2->ex_fsdir, ep->ex_fsdir) < 0) { 14331558Srgrimes epp = &ep2->ex_next; 14341558Srgrimes ep2 = ep2->ex_next; 14351558Srgrimes } 14361558Srgrimes if (ep2) 14371558Srgrimes ep->ex_next = ep2; 14381558Srgrimes *epp = ep; 14391558Srgrimes ep->ex_flag |= EX_LINKED; 14401558Srgrimes } 14411558Srgrimesnextline: 1442192934Srmacklem v4root_phase = 0; 14431558Srgrimes if (dirhead) { 14441558Srgrimes free_dir(dirhead); 14451558Srgrimes dirhead = (struct dirlist *)NULL; 14461558Srgrimes } 14471558Srgrimes } 14481558Srgrimes} 14491558Srgrimes 14501558Srgrimes/* 1451166440Spjd * Get the export list from all specified files 1452166440Spjd */ 1453166440Spjdvoid 1454216587Scharnierget_exportlist(void) 1455166440Spjd{ 1456166440Spjd struct exportlist *ep, *ep2; 1457166440Spjd struct grouplist *grp, *tgrp; 1458166440Spjd struct export_args export; 1459166440Spjd struct iovec *iov; 1460166440Spjd struct statfs *fsp, *mntbufp; 1461166440Spjd struct xvfsconf vfc; 1462166440Spjd char *dirp; 1463166440Spjd char errmsg[255]; 1464166440Spjd int dirplen, num, i; 1465166440Spjd int iovlen; 1466168684Spjd int done; 1467192934Srmacklem struct nfsex_args eargs; 1468166440Spjd 1469192934Srmacklem v4root_dirpath[0] = '\0'; 1470166440Spjd bzero(&export, sizeof(export)); 1471166440Spjd export.ex_flags = MNT_DELEXPORT; 1472166440Spjd dirp = NULL; 1473166440Spjd dirplen = 0; 1474166440Spjd iov = NULL; 1475166440Spjd iovlen = 0; 1476166440Spjd bzero(errmsg, sizeof(errmsg)); 1477166440Spjd 1478166440Spjd /* 1479166440Spjd * First, get rid of the old list 1480166440Spjd */ 1481166440Spjd ep = exphead; 1482166440Spjd while (ep) { 1483166440Spjd ep2 = ep; 1484166440Spjd ep = ep->ex_next; 1485166440Spjd free_exp(ep2); 1486166440Spjd } 1487166440Spjd exphead = (struct exportlist *)NULL; 1488166440Spjd 1489166440Spjd grp = grphead; 1490166440Spjd while (grp) { 1491166440Spjd tgrp = grp; 1492166440Spjd grp = grp->gr_next; 1493166440Spjd free_grp(tgrp); 1494166440Spjd } 1495166440Spjd grphead = (struct grouplist *)NULL; 1496166440Spjd 1497166440Spjd /* 1498192934Srmacklem * and the old V4 root dir. 1499192934Srmacklem */ 1500192934Srmacklem bzero(&eargs, sizeof (eargs)); 1501192934Srmacklem eargs.export.ex_flags = MNT_DELEXPORT; 1502192934Srmacklem if (run_v4server > 0 && 1503192934Srmacklem nfssvc(NFSSVC_V4ROOTEXPORT, (caddr_t)&eargs) < 0 && 1504192934Srmacklem errno != ENOENT) 1505192934Srmacklem syslog(LOG_ERR, "Can't delete exports for V4:"); 1506192934Srmacklem 1507192934Srmacklem /* 1508192934Srmacklem * and clear flag that notes if a public fh has been exported. 1509192934Srmacklem */ 1510192934Srmacklem has_publicfh = 0; 1511192934Srmacklem 1512192934Srmacklem /* 1513166440Spjd * And delete exports that are in the kernel for all local 1514166440Spjd * filesystems. 1515166440Spjd * XXX: Should know how to handle all local exportable filesystems. 1516166440Spjd */ 1517166440Spjd num = getmntinfo(&mntbufp, MNT_NOWAIT); 1518166440Spjd 1519166440Spjd if (num > 0) { 1520166440Spjd build_iovec(&iov, &iovlen, "fstype", NULL, 0); 1521166440Spjd build_iovec(&iov, &iovlen, "fspath", NULL, 0); 1522166440Spjd build_iovec(&iov, &iovlen, "from", NULL, 0); 1523166440Spjd build_iovec(&iov, &iovlen, "update", NULL, 0); 1524166440Spjd build_iovec(&iov, &iovlen, "export", &export, sizeof(export)); 1525166440Spjd build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg)); 1526166440Spjd } 1527166440Spjd 1528166440Spjd for (i = 0; i < num; i++) { 1529166440Spjd fsp = &mntbufp[i]; 1530166440Spjd if (getvfsbyname(fsp->f_fstypename, &vfc) != 0) { 1531166440Spjd syslog(LOG_ERR, "getvfsbyname() failed for %s", 1532166440Spjd fsp->f_fstypename); 1533166440Spjd continue; 1534166440Spjd } 1535166440Spjd 1536166440Spjd /* 1537166440Spjd * Do not delete export for network filesystem by 1538166440Spjd * passing "export" arg to nmount(). 1539166440Spjd * It only makes sense to do this for local filesystems. 1540166440Spjd */ 1541166440Spjd if (vfc.vfc_flags & VFCF_NETWORK) 1542166440Spjd continue; 1543166440Spjd 1544166440Spjd iov[1].iov_base = fsp->f_fstypename; 1545166440Spjd iov[1].iov_len = strlen(fsp->f_fstypename) + 1; 1546166440Spjd iov[3].iov_base = fsp->f_mntonname; 1547166440Spjd iov[3].iov_len = strlen(fsp->f_mntonname) + 1; 1548166440Spjd iov[5].iov_base = fsp->f_mntfromname; 1549166440Spjd iov[5].iov_len = strlen(fsp->f_mntfromname) + 1; 1550166440Spjd 1551166440Spjd if (nmount(iov, iovlen, fsp->f_flags) < 0 && 1552166440Spjd errno != ENOENT && errno != ENOTSUP) { 1553166440Spjd syslog(LOG_ERR, 1554166440Spjd "can't delete exports for %s: %m %s", 1555166440Spjd fsp->f_mntonname, errmsg); 1556166440Spjd } 1557166440Spjd } 1558166440Spjd 1559166440Spjd if (iov != NULL) { 1560166440Spjd /* Free strings allocated by strdup() in getmntopts.c */ 1561166440Spjd free(iov[0].iov_base); /* fstype */ 1562166440Spjd free(iov[2].iov_base); /* fspath */ 1563166440Spjd free(iov[4].iov_base); /* from */ 1564166440Spjd free(iov[6].iov_base); /* update */ 1565166440Spjd free(iov[8].iov_base); /* export */ 1566166440Spjd free(iov[10].iov_base); /* errmsg */ 1567166440Spjd 1568166440Spjd /* free iov, allocated by realloc() */ 1569166440Spjd free(iov); 1570166440Spjd iovlen = 0; 1571166440Spjd } 1572166440Spjd 1573166440Spjd /* 1574166440Spjd * Read in the exports file and build the list, calling 1575166440Spjd * nmount() as we go along to push the export rules into the kernel. 1576166440Spjd */ 1577168684Spjd done = 0; 1578166440Spjd for (i = 0; exnames[i] != NULL; i++) { 1579166440Spjd if (debug) 1580166440Spjd warnx("reading exports from %s", exnames[i]); 1581166440Spjd if ((exp_file = fopen(exnames[i], "r")) == NULL) { 1582168684Spjd syslog(LOG_WARNING, "can't open %s", exnames[i]); 1583168684Spjd continue; 1584166440Spjd } 1585166440Spjd get_exportlist_one(); 1586166440Spjd fclose(exp_file); 1587168684Spjd done++; 1588166440Spjd } 1589168684Spjd if (done == 0) { 1590168684Spjd syslog(LOG_ERR, "can't open any exports file"); 1591168684Spjd exit(2); 1592168684Spjd } 1593192934Srmacklem 1594192934Srmacklem /* 1595192934Srmacklem * If there was no public fh, clear any previous one set. 1596192934Srmacklem */ 1597192934Srmacklem if (run_v4server > 0 && has_publicfh == 0) 1598192934Srmacklem (void) nfssvc(NFSSVC_NOPUBLICFH, NULL); 1599166440Spjd} 1600166440Spjd 1601166440Spjd/* 16021558Srgrimes * Allocate an export list element 16031558Srgrimes */ 16041558Srgrimesstruct exportlist * 1605216587Scharnierget_exp(void) 16061558Srgrimes{ 16071558Srgrimes struct exportlist *ep; 16081558Srgrimes 16091558Srgrimes ep = (struct exportlist *)malloc(sizeof (struct exportlist)); 16101558Srgrimes if (ep == (struct exportlist *)NULL) 16111558Srgrimes out_of_mem(); 161223681Speter memset(ep, 0, sizeof(struct exportlist)); 16131558Srgrimes return (ep); 16141558Srgrimes} 16151558Srgrimes 16161558Srgrimes/* 16171558Srgrimes * Allocate a group list element 16181558Srgrimes */ 16191558Srgrimesstruct grouplist * 1620216587Scharnierget_grp(void) 16211558Srgrimes{ 16221558Srgrimes struct grouplist *gp; 16231558Srgrimes 16241558Srgrimes gp = (struct grouplist *)malloc(sizeof (struct grouplist)); 16251558Srgrimes if (gp == (struct grouplist *)NULL) 16261558Srgrimes out_of_mem(); 162723681Speter memset(gp, 0, sizeof(struct grouplist)); 16281558Srgrimes return (gp); 16291558Srgrimes} 16301558Srgrimes 16311558Srgrimes/* 16321558Srgrimes * Clean up upon an error in get_exportlist(). 16331558Srgrimes */ 16341558Srgrimesvoid 1635216587Scharniergetexp_err(struct exportlist *ep, struct grouplist *grp) 16361558Srgrimes{ 16371558Srgrimes struct grouplist *tgrp; 16381558Srgrimes 1639100336Sjoerg if (!(opt_flags & OP_QUIET)) 1640100336Sjoerg syslog(LOG_ERR, "bad exports list line %s", line); 16411558Srgrimes if (ep && (ep->ex_flag & EX_LINKED) == 0) 16421558Srgrimes free_exp(ep); 16431558Srgrimes while (grp) { 16441558Srgrimes tgrp = grp; 16451558Srgrimes grp = grp->gr_next; 16461558Srgrimes free_grp(tgrp); 16471558Srgrimes } 16481558Srgrimes} 16491558Srgrimes 16501558Srgrimes/* 16511558Srgrimes * Search the export list for a matching fs. 16521558Srgrimes */ 16531558Srgrimesstruct exportlist * 1654216587Scharnierex_search(fsid_t *fsid) 16551558Srgrimes{ 16561558Srgrimes struct exportlist *ep; 16571558Srgrimes 16581558Srgrimes ep = exphead; 16591558Srgrimes while (ep) { 16601558Srgrimes if (ep->ex_fs.val[0] == fsid->val[0] && 16611558Srgrimes ep->ex_fs.val[1] == fsid->val[1]) 16621558Srgrimes return (ep); 16631558Srgrimes ep = ep->ex_next; 16641558Srgrimes } 16651558Srgrimes return (ep); 16661558Srgrimes} 16671558Srgrimes 16681558Srgrimes/* 16691558Srgrimes * Add a directory path to the list. 16701558Srgrimes */ 16711558Srgrimeschar * 1672216587Scharnieradd_expdir(struct dirlist **dpp, char *cp, int len) 16731558Srgrimes{ 16741558Srgrimes struct dirlist *dp; 16751558Srgrimes 16761558Srgrimes dp = (struct dirlist *)malloc(sizeof (struct dirlist) + len); 167737663Scharnier if (dp == (struct dirlist *)NULL) 167837663Scharnier out_of_mem(); 16791558Srgrimes dp->dp_left = *dpp; 16801558Srgrimes dp->dp_right = (struct dirlist *)NULL; 16811558Srgrimes dp->dp_flag = 0; 16821558Srgrimes dp->dp_hosts = (struct hostlist *)NULL; 16831558Srgrimes strcpy(dp->dp_dirp, cp); 16841558Srgrimes *dpp = dp; 16851558Srgrimes return (dp->dp_dirp); 16861558Srgrimes} 16871558Srgrimes 16881558Srgrimes/* 16891558Srgrimes * Hang the dir list element off the dirpath binary tree as required 16901558Srgrimes * and update the entry for host. 16911558Srgrimes */ 16921558Srgrimesvoid 1693216587Scharnierhang_dirp(struct dirlist *dp, struct grouplist *grp, struct exportlist *ep, 1694216587Scharnier int flags) 16951558Srgrimes{ 16961558Srgrimes struct hostlist *hp; 16971558Srgrimes struct dirlist *dp2; 16981558Srgrimes 16999336Sdfr if (flags & OP_ALLDIRS) { 17001558Srgrimes if (ep->ex_defdir) 17011558Srgrimes free((caddr_t)dp); 17021558Srgrimes else 17031558Srgrimes ep->ex_defdir = dp; 17049336Sdfr if (grp == (struct grouplist *)NULL) { 17051558Srgrimes ep->ex_defdir->dp_flag |= DP_DEFSET; 17069336Sdfr } else while (grp) { 17071558Srgrimes hp = get_ht(); 17081558Srgrimes hp->ht_grp = grp; 17091558Srgrimes hp->ht_next = ep->ex_defdir->dp_hosts; 17101558Srgrimes ep->ex_defdir->dp_hosts = hp; 17111558Srgrimes grp = grp->gr_next; 17121558Srgrimes } 17131558Srgrimes } else { 17141558Srgrimes 17151558Srgrimes /* 171637663Scharnier * Loop through the directories adding them to the tree. 17171558Srgrimes */ 17181558Srgrimes while (dp) { 17191558Srgrimes dp2 = dp->dp_left; 17209336Sdfr add_dlist(&ep->ex_dirl, dp, grp, flags); 17211558Srgrimes dp = dp2; 17221558Srgrimes } 17231558Srgrimes } 17241558Srgrimes} 17251558Srgrimes 17261558Srgrimes/* 17271558Srgrimes * Traverse the binary tree either updating a node that is already there 17281558Srgrimes * for the new directory or adding the new node. 17291558Srgrimes */ 17301558Srgrimesvoid 1731216587Scharnieradd_dlist(struct dirlist **dpp, struct dirlist *newdp, struct grouplist *grp, 1732216587Scharnier int flags) 17331558Srgrimes{ 17341558Srgrimes struct dirlist *dp; 17351558Srgrimes struct hostlist *hp; 17361558Srgrimes int cmp; 17371558Srgrimes 17381558Srgrimes dp = *dpp; 17391558Srgrimes if (dp) { 17401558Srgrimes cmp = strcmp(dp->dp_dirp, newdp->dp_dirp); 17411558Srgrimes if (cmp > 0) { 17429336Sdfr add_dlist(&dp->dp_left, newdp, grp, flags); 17431558Srgrimes return; 17441558Srgrimes } else if (cmp < 0) { 17459336Sdfr add_dlist(&dp->dp_right, newdp, grp, flags); 17461558Srgrimes return; 17471558Srgrimes } else 17481558Srgrimes free((caddr_t)newdp); 17491558Srgrimes } else { 17501558Srgrimes dp = newdp; 17511558Srgrimes dp->dp_left = (struct dirlist *)NULL; 17521558Srgrimes *dpp = dp; 17531558Srgrimes } 17541558Srgrimes if (grp) { 17551558Srgrimes 17561558Srgrimes /* 17571558Srgrimes * Hang all of the host(s) off of the directory point. 17581558Srgrimes */ 17591558Srgrimes do { 17601558Srgrimes hp = get_ht(); 17611558Srgrimes hp->ht_grp = grp; 17621558Srgrimes hp->ht_next = dp->dp_hosts; 17631558Srgrimes dp->dp_hosts = hp; 17641558Srgrimes grp = grp->gr_next; 17651558Srgrimes } while (grp); 17669336Sdfr } else { 17671558Srgrimes dp->dp_flag |= DP_DEFSET; 17689336Sdfr } 17691558Srgrimes} 17701558Srgrimes 17711558Srgrimes/* 17721558Srgrimes * Search for a dirpath on the export point. 17731558Srgrimes */ 17741558Srgrimesstruct dirlist * 1775216587Scharnierdirp_search(struct dirlist *dp, char *dirp) 17761558Srgrimes{ 17771558Srgrimes int cmp; 17781558Srgrimes 17791558Srgrimes if (dp) { 178074462Salfred cmp = strcmp(dp->dp_dirp, dirp); 17811558Srgrimes if (cmp > 0) 178274462Salfred return (dirp_search(dp->dp_left, dirp)); 17831558Srgrimes else if (cmp < 0) 178474462Salfred return (dirp_search(dp->dp_right, dirp)); 17851558Srgrimes else 17861558Srgrimes return (dp); 17871558Srgrimes } 17881558Srgrimes return (dp); 17891558Srgrimes} 17901558Srgrimes 17911558Srgrimes/* 17921558Srgrimes * Scan for a host match in a directory tree. 17931558Srgrimes */ 17941558Srgrimesint 1795216587Scharnierchk_host(struct dirlist *dp, struct sockaddr *saddr, int *defsetp, 1796216587Scharnier int *hostsetp) 17971558Srgrimes{ 17981558Srgrimes struct hostlist *hp; 17991558Srgrimes struct grouplist *grp; 180074462Salfred struct addrinfo *ai; 18011558Srgrimes 18021558Srgrimes if (dp) { 18031558Srgrimes if (dp->dp_flag & DP_DEFSET) 18049336Sdfr *defsetp = dp->dp_flag; 18051558Srgrimes hp = dp->dp_hosts; 18061558Srgrimes while (hp) { 18071558Srgrimes grp = hp->ht_grp; 18081558Srgrimes switch (grp->gr_type) { 18091558Srgrimes case GT_HOST: 181074462Salfred ai = grp->gr_ptr.gt_addrinfo; 181174462Salfred for (; ai; ai = ai->ai_next) { 181275801Siedowse if (!sacmp(ai->ai_addr, saddr, NULL)) { 181374462Salfred *hostsetp = 181474462Salfred (hp->ht_flag | DP_HOSTSET); 181574462Salfred return (1); 181674462Salfred } 18179336Sdfr } 181875801Siedowse break; 18191558Srgrimes case GT_NET: 182075801Siedowse if (!sacmp(saddr, (struct sockaddr *) 182175801Siedowse &grp->gr_ptr.gt_net.nt_net, 182275801Siedowse (struct sockaddr *) 182375801Siedowse &grp->gr_ptr.gt_net.nt_mask)) { 182474462Salfred *hostsetp = (hp->ht_flag | DP_HOSTSET); 182574462Salfred return (1); 182674462Salfred } 182775801Siedowse break; 182875801Siedowse } 18291558Srgrimes hp = hp->ht_next; 18301558Srgrimes } 18311558Srgrimes } 18321558Srgrimes return (0); 18331558Srgrimes} 18341558Srgrimes 18351558Srgrimes/* 18361558Srgrimes * Scan tree for a host that matches the address. 18371558Srgrimes */ 18381558Srgrimesint 1839216587Scharnierscan_tree(struct dirlist *dp, struct sockaddr *saddr) 18401558Srgrimes{ 18419336Sdfr int defset, hostset; 18421558Srgrimes 18431558Srgrimes if (dp) { 18441558Srgrimes if (scan_tree(dp->dp_left, saddr)) 18451558Srgrimes return (1); 18469336Sdfr if (chk_host(dp, saddr, &defset, &hostset)) 18471558Srgrimes return (1); 18481558Srgrimes if (scan_tree(dp->dp_right, saddr)) 18491558Srgrimes return (1); 18501558Srgrimes } 18511558Srgrimes return (0); 18521558Srgrimes} 18531558Srgrimes 18541558Srgrimes/* 18551558Srgrimes * Traverse the dirlist tree and free it up. 18561558Srgrimes */ 18571558Srgrimesvoid 1858216587Scharnierfree_dir(struct dirlist *dp) 18591558Srgrimes{ 18601558Srgrimes 18611558Srgrimes if (dp) { 18621558Srgrimes free_dir(dp->dp_left); 18631558Srgrimes free_dir(dp->dp_right); 18641558Srgrimes free_host(dp->dp_hosts); 18651558Srgrimes free((caddr_t)dp); 18661558Srgrimes } 18671558Srgrimes} 18681558Srgrimes 18691558Srgrimes/* 1870184588Sdfr * Parse a colon separated list of security flavors 1871184588Sdfr */ 1872184588Sdfrint 1873216587Scharnierparsesec(char *seclist, struct exportlist *ep) 1874184588Sdfr{ 1875184588Sdfr char *cp, savedc; 1876184588Sdfr int flavor; 1877184588Sdfr 1878184588Sdfr ep->ex_numsecflavors = 0; 1879184588Sdfr for (;;) { 1880184588Sdfr cp = strchr(seclist, ':'); 1881184588Sdfr if (cp) { 1882184588Sdfr savedc = *cp; 1883184588Sdfr *cp = '\0'; 1884184588Sdfr } 1885184588Sdfr 1886184588Sdfr if (!strcmp(seclist, "sys")) 1887184588Sdfr flavor = AUTH_SYS; 1888184588Sdfr else if (!strcmp(seclist, "krb5")) 1889184588Sdfr flavor = RPCSEC_GSS_KRB5; 1890184588Sdfr else if (!strcmp(seclist, "krb5i")) 1891184588Sdfr flavor = RPCSEC_GSS_KRB5I; 1892184588Sdfr else if (!strcmp(seclist, "krb5p")) 1893184588Sdfr flavor = RPCSEC_GSS_KRB5P; 1894184588Sdfr else { 1895184588Sdfr if (cp) 1896184588Sdfr *cp = savedc; 1897184588Sdfr syslog(LOG_ERR, "bad sec flavor: %s", seclist); 1898184588Sdfr return (1); 1899184588Sdfr } 1900184588Sdfr if (ep->ex_numsecflavors == MAXSECFLAVORS) { 1901184588Sdfr if (cp) 1902184588Sdfr *cp = savedc; 1903184588Sdfr syslog(LOG_ERR, "too many sec flavors: %s", seclist); 1904184588Sdfr return (1); 1905184588Sdfr } 1906184588Sdfr ep->ex_secflavors[ep->ex_numsecflavors] = flavor; 1907184588Sdfr ep->ex_numsecflavors++; 1908184588Sdfr if (cp) { 1909184588Sdfr *cp = savedc; 1910184588Sdfr seclist = cp + 1; 1911184588Sdfr } else { 1912184588Sdfr break; 1913184588Sdfr } 1914184588Sdfr } 1915184588Sdfr return (0); 1916184588Sdfr} 1917184588Sdfr 1918184588Sdfr/* 19191558Srgrimes * Parse the option string and update fields. 19201558Srgrimes * Option arguments may either be -<option>=<value> or 19211558Srgrimes * -<option> <value> 19221558Srgrimes */ 19231558Srgrimesint 1924216587Scharnierdo_opt(char **cpp, char **endcpp, struct exportlist *ep, struct grouplist *grp, 1925216587Scharnier int *has_hostp, int *exflagsp, struct xucred *cr) 19261558Srgrimes{ 19271558Srgrimes char *cpoptarg, *cpoptend; 19281558Srgrimes char *cp, *endcp, *cpopt, savedc, savedc2; 19291558Srgrimes int allflag, usedarg; 19301558Srgrimes 193151968Salfred savedc2 = '\0'; 19321558Srgrimes cpopt = *cpp; 19331558Srgrimes cpopt++; 19341558Srgrimes cp = *endcpp; 19351558Srgrimes savedc = *cp; 19361558Srgrimes *cp = '\0'; 19371558Srgrimes while (cpopt && *cpopt) { 19381558Srgrimes allflag = 1; 19391558Srgrimes usedarg = -2; 194037663Scharnier if ((cpoptend = strchr(cpopt, ','))) { 19411558Srgrimes *cpoptend++ = '\0'; 194237663Scharnier if ((cpoptarg = strchr(cpopt, '='))) 19431558Srgrimes *cpoptarg++ = '\0'; 19441558Srgrimes } else { 194537663Scharnier if ((cpoptarg = strchr(cpopt, '='))) 19461558Srgrimes *cpoptarg++ = '\0'; 19471558Srgrimes else { 19481558Srgrimes *cp = savedc; 19491558Srgrimes nextfield(&cp, &endcp); 19501558Srgrimes **endcpp = '\0'; 19511558Srgrimes if (endcp > cp && *cp != '-') { 19521558Srgrimes cpoptarg = cp; 19531558Srgrimes savedc2 = *endcp; 19541558Srgrimes *endcp = '\0'; 19551558Srgrimes usedarg = 0; 19561558Srgrimes } 19571558Srgrimes } 19581558Srgrimes } 19591558Srgrimes if (!strcmp(cpopt, "ro") || !strcmp(cpopt, "o")) { 19601558Srgrimes *exflagsp |= MNT_EXRDONLY; 19611558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "maproot") || 19621558Srgrimes !(allflag = strcmp(cpopt, "mapall")) || 19631558Srgrimes !strcmp(cpopt, "root") || !strcmp(cpopt, "r"))) { 19641558Srgrimes usedarg++; 19651558Srgrimes parsecred(cpoptarg, cr); 19661558Srgrimes if (allflag == 0) { 19671558Srgrimes *exflagsp |= MNT_EXPORTANON; 19681558Srgrimes opt_flags |= OP_MAPALL; 19691558Srgrimes } else 19701558Srgrimes opt_flags |= OP_MAPROOT; 19711558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "mask") || 197275801Siedowse !strcmp(cpopt, "m"))) { 19731558Srgrimes if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 1)) { 197437663Scharnier syslog(LOG_ERR, "bad mask: %s", cpoptarg); 19751558Srgrimes return (1); 19761558Srgrimes } 19771558Srgrimes usedarg++; 19781558Srgrimes opt_flags |= OP_MASK; 19791558Srgrimes } else if (cpoptarg && (!strcmp(cpopt, "network") || 19801558Srgrimes !strcmp(cpopt, "n"))) { 198174462Salfred if (strchr(cpoptarg, '/') != NULL) { 198274462Salfred if (debug) 198374462Salfred fprintf(stderr, "setting OP_MASKLEN\n"); 198474462Salfred opt_flags |= OP_MASKLEN; 198574462Salfred } 19861558Srgrimes if (grp->gr_type != GT_NULL) { 198737663Scharnier syslog(LOG_ERR, "network/host conflict"); 19881558Srgrimes return (1); 19891558Srgrimes } else if (get_net(cpoptarg, &grp->gr_ptr.gt_net, 0)) { 199037663Scharnier syslog(LOG_ERR, "bad net: %s", cpoptarg); 19911558Srgrimes return (1); 19921558Srgrimes } 19931558Srgrimes grp->gr_type = GT_NET; 19941558Srgrimes *has_hostp = 1; 19951558Srgrimes usedarg++; 19961558Srgrimes opt_flags |= OP_NET; 19971558Srgrimes } else if (!strcmp(cpopt, "alldirs")) { 19981558Srgrimes opt_flags |= OP_ALLDIRS; 199927447Sdfr } else if (!strcmp(cpopt, "public")) { 200027447Sdfr *exflagsp |= MNT_EXPUBLIC; 200127447Sdfr } else if (!strcmp(cpopt, "webnfs")) { 200227447Sdfr *exflagsp |= (MNT_EXPUBLIC|MNT_EXRDONLY|MNT_EXPORTANON); 200327447Sdfr opt_flags |= OP_MAPALL; 200427447Sdfr } else if (cpoptarg && !strcmp(cpopt, "index")) { 200527447Sdfr ep->ex_indexfile = strdup(cpoptarg); 2006100336Sjoerg } else if (!strcmp(cpopt, "quiet")) { 2007100336Sjoerg opt_flags |= OP_QUIET; 2008184588Sdfr } else if (!strcmp(cpopt, "sec")) { 2009184588Sdfr if (parsesec(cpoptarg, ep)) 2010184588Sdfr return (1); 2011184588Sdfr opt_flags |= OP_SEC; 2012184588Sdfr usedarg++; 20131558Srgrimes } else { 201437663Scharnier syslog(LOG_ERR, "bad opt %s", cpopt); 20151558Srgrimes return (1); 20161558Srgrimes } 20171558Srgrimes if (usedarg >= 0) { 20181558Srgrimes *endcp = savedc2; 20191558Srgrimes **endcpp = savedc; 20201558Srgrimes if (usedarg > 0) { 20211558Srgrimes *cpp = cp; 20221558Srgrimes *endcpp = endcp; 20231558Srgrimes } 20241558Srgrimes return (0); 20251558Srgrimes } 20261558Srgrimes cpopt = cpoptend; 20271558Srgrimes } 20281558Srgrimes **endcpp = savedc; 20291558Srgrimes return (0); 20301558Srgrimes} 20311558Srgrimes 20321558Srgrimes/* 20331558Srgrimes * Translate a character string to the corresponding list of network 20341558Srgrimes * addresses for a hostname. 20351558Srgrimes */ 20361558Srgrimesint 2037216587Scharnierget_host(char *cp, struct grouplist *grp, struct grouplist *tgrp) 20381558Srgrimes{ 20397401Swpaul struct grouplist *checkgrp; 204075635Siedowse struct addrinfo *ai, *tai, hints; 204174462Salfred int ecode; 204274462Salfred char host[NI_MAXHOST]; 20431558Srgrimes 204474462Salfred if (grp->gr_type != GT_NULL) { 204574462Salfred syslog(LOG_ERR, "Bad netgroup type for ip host %s", cp); 20461558Srgrimes return (1); 20471558Srgrimes } 204874462Salfred memset(&hints, 0, sizeof hints); 204974462Salfred hints.ai_flags = AI_CANONNAME; 205074462Salfred hints.ai_protocol = IPPROTO_UDP; 205174462Salfred ecode = getaddrinfo(cp, NULL, &hints, &ai); 205274462Salfred if (ecode != 0) { 205375635Siedowse syslog(LOG_ERR,"can't get address info for host %s", cp); 205474462Salfred return 1; 205574462Salfred } 205674462Salfred grp->gr_ptr.gt_addrinfo = ai; 205774462Salfred while (ai != NULL) { 205874462Salfred if (ai->ai_canonname == NULL) { 205974462Salfred if (getnameinfo(ai->ai_addr, ai->ai_addrlen, host, 2060146187Sume sizeof host, NULL, 0, NI_NUMERICHOST) != 0) 206174462Salfred strlcpy(host, "?", sizeof(host)); 206274462Salfred ai->ai_canonname = strdup(host); 206374462Salfred ai->ai_flags |= AI_CANONNAME; 206475641Siedowse } 206574462Salfred if (debug) 206675635Siedowse fprintf(stderr, "got host %s\n", ai->ai_canonname); 206775635Siedowse /* 206875635Siedowse * Sanity check: make sure we don't already have an entry 206975635Siedowse * for this host in the grouplist. 207075635Siedowse */ 207175635Siedowse for (checkgrp = tgrp; checkgrp != NULL; 207275635Siedowse checkgrp = checkgrp->gr_next) { 207375635Siedowse if (checkgrp->gr_type != GT_HOST) 207475635Siedowse continue; 207575635Siedowse for (tai = checkgrp->gr_ptr.gt_addrinfo; tai != NULL; 207675635Siedowse tai = tai->ai_next) { 207775801Siedowse if (sacmp(tai->ai_addr, ai->ai_addr, NULL) != 0) 207875635Siedowse continue; 207975635Siedowse if (debug) 208075635Siedowse fprintf(stderr, 208175635Siedowse "ignoring duplicate host %s\n", 208275635Siedowse ai->ai_canonname); 208375635Siedowse grp->gr_type = GT_IGNORE; 208475635Siedowse return (0); 208575635Siedowse } 208675635Siedowse } 208774462Salfred ai = ai->ai_next; 20881558Srgrimes } 208975635Siedowse grp->gr_type = GT_HOST; 20901558Srgrimes return (0); 20911558Srgrimes} 20921558Srgrimes 20931558Srgrimes/* 20941558Srgrimes * Free up an exports list component 20951558Srgrimes */ 20961558Srgrimesvoid 2097216587Scharnierfree_exp(struct exportlist *ep) 20981558Srgrimes{ 20991558Srgrimes 21001558Srgrimes if (ep->ex_defdir) { 21011558Srgrimes free_host(ep->ex_defdir->dp_hosts); 21021558Srgrimes free((caddr_t)ep->ex_defdir); 21031558Srgrimes } 21041558Srgrimes if (ep->ex_fsdir) 21051558Srgrimes free(ep->ex_fsdir); 210627447Sdfr if (ep->ex_indexfile) 210727447Sdfr free(ep->ex_indexfile); 21081558Srgrimes free_dir(ep->ex_dirl); 21091558Srgrimes free((caddr_t)ep); 21101558Srgrimes} 21111558Srgrimes 21121558Srgrimes/* 21131558Srgrimes * Free hosts. 21141558Srgrimes */ 21151558Srgrimesvoid 2116216587Scharnierfree_host(struct hostlist *hp) 21171558Srgrimes{ 21181558Srgrimes struct hostlist *hp2; 21191558Srgrimes 21201558Srgrimes while (hp) { 21211558Srgrimes hp2 = hp; 21221558Srgrimes hp = hp->ht_next; 21231558Srgrimes free((caddr_t)hp2); 21241558Srgrimes } 21251558Srgrimes} 21261558Srgrimes 21271558Srgrimesstruct hostlist * 2128216587Scharnierget_ht(void) 21291558Srgrimes{ 21301558Srgrimes struct hostlist *hp; 21311558Srgrimes 21321558Srgrimes hp = (struct hostlist *)malloc(sizeof (struct hostlist)); 21331558Srgrimes if (hp == (struct hostlist *)NULL) 21341558Srgrimes out_of_mem(); 21351558Srgrimes hp->ht_next = (struct hostlist *)NULL; 21369336Sdfr hp->ht_flag = 0; 21371558Srgrimes return (hp); 21381558Srgrimes} 21391558Srgrimes 21401558Srgrimes/* 21411558Srgrimes * Out of memory, fatal 21421558Srgrimes */ 21431558Srgrimesvoid 2144216587Scharnierout_of_mem(void) 21451558Srgrimes{ 21461558Srgrimes 214737663Scharnier syslog(LOG_ERR, "out of memory"); 21481558Srgrimes exit(2); 21491558Srgrimes} 21501558Srgrimes 21511558Srgrimes/* 2152158857Srodrigc * Do the nmount() syscall with the update flag to push the export info into 21531558Srgrimes * the kernel. 21541558Srgrimes */ 21551558Srgrimesint 2156158857Srodrigcdo_mount(struct exportlist *ep, struct grouplist *grp, int exflags, 2157158857Srodrigc struct xucred *anoncrp, char *dirp, int dirplen, struct statfs *fsb) 21581558Srgrimes{ 215975841Siedowse struct statfs fsb1; 216074462Salfred struct addrinfo *ai; 2161192934Srmacklem struct export_args ea, *eap; 2162158857Srodrigc char errmsg[255]; 2163158857Srodrigc char *cp; 21641558Srgrimes int done; 2165158857Srodrigc char savedc; 2166158857Srodrigc struct iovec *iov; 2167184588Sdfr int i, iovlen; 2168158857Srodrigc int ret; 2169192934Srmacklem struct nfsex_args nfsea; 21701558Srgrimes 2171192934Srmacklem if (run_v4server > 0) 2172192934Srmacklem eap = &nfsea.export; 2173192934Srmacklem else 2174192934Srmacklem eap = &ea; 2175192934Srmacklem 2176158857Srodrigc cp = NULL; 2177158857Srodrigc savedc = '\0'; 2178158857Srodrigc iov = NULL; 2179158857Srodrigc iovlen = 0; 2180158857Srodrigc ret = 0; 218175801Siedowse 2182192934Srmacklem bzero(eap, sizeof (struct export_args)); 2183158857Srodrigc bzero(errmsg, sizeof(errmsg)); 2184192934Srmacklem eap->ex_flags = exflags; 2185192934Srmacklem eap->ex_anon = *anoncrp; 2186192934Srmacklem eap->ex_indexfile = ep->ex_indexfile; 218775641Siedowse if (grp->gr_type == GT_HOST) 218874462Salfred ai = grp->gr_ptr.gt_addrinfo; 218975641Siedowse else 219075641Siedowse ai = NULL; 2191192934Srmacklem eap->ex_numsecflavors = ep->ex_numsecflavors; 2192192934Srmacklem for (i = 0; i < eap->ex_numsecflavors; i++) 2193192934Srmacklem eap->ex_secflavors[i] = ep->ex_secflavors[i]; 2194192934Srmacklem if (eap->ex_numsecflavors == 0) { 2195192934Srmacklem eap->ex_numsecflavors = 1; 2196192934Srmacklem eap->ex_secflavors[0] = AUTH_SYS; 2197184588Sdfr } 21981558Srgrimes done = FALSE; 2199158857Srodrigc 2200192934Srmacklem if (v4root_phase == 0) { 2201192934Srmacklem build_iovec(&iov, &iovlen, "fstype", NULL, 0); 2202192934Srmacklem build_iovec(&iov, &iovlen, "fspath", NULL, 0); 2203192934Srmacklem build_iovec(&iov, &iovlen, "from", NULL, 0); 2204192934Srmacklem build_iovec(&iov, &iovlen, "update", NULL, 0); 2205192934Srmacklem build_iovec(&iov, &iovlen, "export", eap, 2206192934Srmacklem sizeof (struct export_args)); 2207192934Srmacklem build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg)); 2208192934Srmacklem } 2209158857Srodrigc 22101558Srgrimes while (!done) { 22111558Srgrimes switch (grp->gr_type) { 22121558Srgrimes case GT_HOST: 221375641Siedowse if (ai->ai_addr->sa_family == AF_INET6 && have_v6 == 0) 221474462Salfred goto skip; 2215192934Srmacklem eap->ex_addr = ai->ai_addr; 2216192934Srmacklem eap->ex_addrlen = ai->ai_addrlen; 2217192934Srmacklem eap->ex_masklen = 0; 22181558Srgrimes break; 22191558Srgrimes case GT_NET: 222075801Siedowse if (grp->gr_ptr.gt_net.nt_net.ss_family == AF_INET6 && 222174462Salfred have_v6 == 0) 222274462Salfred goto skip; 2223192934Srmacklem eap->ex_addr = 222475801Siedowse (struct sockaddr *)&grp->gr_ptr.gt_net.nt_net; 2225192934Srmacklem eap->ex_addrlen = 2226158857Srodrigc ((struct sockaddr *)&grp->gr_ptr.gt_net.nt_net)->sa_len; 2227192934Srmacklem eap->ex_mask = 222875801Siedowse (struct sockaddr *)&grp->gr_ptr.gt_net.nt_mask; 2229192934Srmacklem eap->ex_masklen = ((struct sockaddr *)&grp->gr_ptr.gt_net.nt_mask)->sa_len; 22301558Srgrimes break; 223175641Siedowse case GT_DEFAULT: 2232192934Srmacklem eap->ex_addr = NULL; 2233192934Srmacklem eap->ex_addrlen = 0; 2234192934Srmacklem eap->ex_mask = NULL; 2235192934Srmacklem eap->ex_masklen = 0; 223675641Siedowse break; 22377401Swpaul case GT_IGNORE: 2238158857Srodrigc ret = 0; 2239158857Srodrigc goto error_exit; 22407401Swpaul break; 22411558Srgrimes default: 224237663Scharnier syslog(LOG_ERR, "bad grouptype"); 22431558Srgrimes if (cp) 22441558Srgrimes *cp = savedc; 2245158857Srodrigc ret = 1; 2246158857Srodrigc goto error_exit; 22471558Srgrimes }; 22481558Srgrimes 22491558Srgrimes /* 2250192934Srmacklem * For V4:, use the nfssvc() syscall, instead of mount(). 22511558Srgrimes */ 2252192934Srmacklem if (v4root_phase == 2) { 2253192934Srmacklem nfsea.fspec = v4root_dirpath; 2254192934Srmacklem if (run_v4server > 0 && 2255192934Srmacklem nfssvc(NFSSVC_V4ROOTEXPORT, (caddr_t)&nfsea) < 0) { 2256192934Srmacklem syslog(LOG_ERR, "Exporting V4: failed"); 2257192934Srmacklem return (2); 2258158857Srodrigc } 2259192934Srmacklem } else { 2260192934Srmacklem /* 2261192934Srmacklem * XXX: 2262192934Srmacklem * Maybe I should just use the fsb->f_mntonname path 2263192934Srmacklem * instead of looping back up the dirp to the mount 2264192934Srmacklem * point?? 2265192934Srmacklem * Also, needs to know how to export all types of local 2266192934Srmacklem * exportable filesystems and not just "ufs". 2267192934Srmacklem */ 2268192934Srmacklem iov[1].iov_base = fsb->f_fstypename; /* "fstype" */ 2269192934Srmacklem iov[1].iov_len = strlen(fsb->f_fstypename) + 1; 2270192934Srmacklem iov[3].iov_base = fsb->f_mntonname; /* "fspath" */ 2271192934Srmacklem iov[3].iov_len = strlen(fsb->f_mntonname) + 1; 2272192934Srmacklem iov[5].iov_base = fsb->f_mntfromname; /* "from" */ 2273192934Srmacklem iov[5].iov_len = strlen(fsb->f_mntfromname) + 1; 2274192934Srmacklem 2275192934Srmacklem while (nmount(iov, iovlen, fsb->f_flags) < 0) { 2276192934Srmacklem if (cp) 2277192934Srmacklem *cp-- = savedc; 2278192934Srmacklem else 2279192934Srmacklem cp = dirp + dirplen - 1; 2280192934Srmacklem if (opt_flags & OP_QUIET) { 2281192934Srmacklem ret = 1; 2282192934Srmacklem goto error_exit; 2283192934Srmacklem } 2284192934Srmacklem if (errno == EPERM) { 2285192934Srmacklem if (debug) 2286192934Srmacklem warnx("can't change attributes for %s", 2287192934Srmacklem dirp); 2288192934Srmacklem syslog(LOG_ERR, 2289192934Srmacklem "can't change attributes for %s", 229075635Siedowse dirp); 2291192934Srmacklem ret = 1; 2292192934Srmacklem goto error_exit; 2293192934Srmacklem } 2294192934Srmacklem if (opt_flags & OP_ALLDIRS) { 2295192934Srmacklem if (errno == EINVAL) 2296192934Srmacklem syslog(LOG_ERR, 2297100336Sjoerg "-alldirs requested but %s is not a filesystem mountpoint", 2298192934Srmacklem dirp); 2299192934Srmacklem else 2300192934Srmacklem syslog(LOG_ERR, 2301192934Srmacklem "could not remount %s: %m", 2302192934Srmacklem dirp); 2303192934Srmacklem ret = 1; 2304192934Srmacklem goto error_exit; 2305192934Srmacklem } 2306192934Srmacklem /* back up over the last component */ 2307192934Srmacklem while (*cp == '/' && cp > dirp) 2308192934Srmacklem cp--; 2309192934Srmacklem while (*(cp - 1) != '/' && cp > dirp) 2310192934Srmacklem cp--; 2311192934Srmacklem if (cp == dirp) { 2312192934Srmacklem if (debug) 2313192934Srmacklem warnx("mnt unsucc"); 2314192934Srmacklem syslog(LOG_ERR, "can't export %s %s", 2315192934Srmacklem dirp, errmsg); 2316192934Srmacklem ret = 1; 2317192934Srmacklem goto error_exit; 2318192934Srmacklem } 2319192934Srmacklem savedc = *cp; 2320192934Srmacklem *cp = '\0'; 2321192934Srmacklem /* 2322192934Srmacklem * Check that we're still on the same 2323192934Srmacklem * filesystem. 2324192934Srmacklem */ 2325192934Srmacklem if (statfs(dirp, &fsb1) != 0 || 2326192934Srmacklem bcmp(&fsb1.f_fsid, &fsb->f_fsid, 2327192934Srmacklem sizeof (fsb1.f_fsid)) != 0) { 2328192934Srmacklem *cp = savedc; 2329100336Sjoerg syslog(LOG_ERR, 2330192934Srmacklem "can't export %s %s", dirp, 2331192934Srmacklem errmsg); 2332192934Srmacklem ret = 1; 2333192934Srmacklem goto error_exit; 2334192934Srmacklem } 23351558Srgrimes } 23361558Srgrimes } 2337192934Srmacklem 2338192934Srmacklem /* 2339192934Srmacklem * For the experimental server: 2340192934Srmacklem * If this is the public directory, get the file handle 2341192934Srmacklem * and load it into the kernel via the nfssvc() syscall. 2342192934Srmacklem */ 2343192934Srmacklem if (run_v4server > 0 && (exflags & MNT_EXPUBLIC) != 0) { 2344192934Srmacklem fhandle_t fh; 2345192934Srmacklem char *public_name; 2346192934Srmacklem 2347192934Srmacklem if (eap->ex_indexfile != NULL) 2348192934Srmacklem public_name = eap->ex_indexfile; 2349192934Srmacklem else 2350192934Srmacklem public_name = dirp; 2351192934Srmacklem if (getfh(public_name, &fh) < 0) 2352192934Srmacklem syslog(LOG_ERR, 2353192934Srmacklem "Can't get public fh for %s", public_name); 2354192934Srmacklem else if (nfssvc(NFSSVC_PUBLICFH, (caddr_t)&fh) < 0) 2355192934Srmacklem syslog(LOG_ERR, 2356192934Srmacklem "Can't set public fh for %s", public_name); 2357192934Srmacklem else 2358192934Srmacklem has_publicfh = 1; 2359192934Srmacklem } 236074462Salfredskip: 236175641Siedowse if (ai != NULL) 236274462Salfred ai = ai->ai_next; 236375641Siedowse if (ai == NULL) 23641558Srgrimes done = TRUE; 23651558Srgrimes } 23661558Srgrimes if (cp) 23671558Srgrimes *cp = savedc; 2368158857Srodrigcerror_exit: 2369158857Srodrigc /* free strings allocated by strdup() in getmntopts.c */ 2370158857Srodrigc if (iov != NULL) { 2371158857Srodrigc free(iov[0].iov_base); /* fstype */ 2372158857Srodrigc free(iov[2].iov_base); /* fspath */ 2373158857Srodrigc free(iov[4].iov_base); /* from */ 2374158857Srodrigc free(iov[6].iov_base); /* update */ 2375158857Srodrigc free(iov[8].iov_base); /* export */ 2376158857Srodrigc free(iov[10].iov_base); /* errmsg */ 2377158857Srodrigc 2378158857Srodrigc /* free iov, allocated by realloc() */ 2379158857Srodrigc free(iov); 2380158857Srodrigc } 2381158857Srodrigc return (ret); 23821558Srgrimes} 23831558Srgrimes 23841558Srgrimes/* 23851558Srgrimes * Translate a net address. 238675801Siedowse * 238775801Siedowse * If `maskflg' is nonzero, then `cp' is a netmask, not a network address. 23881558Srgrimes */ 23891558Srgrimesint 2390216587Scharnierget_net(char *cp, struct netmsk *net, int maskflg) 23911558Srgrimes{ 239275861Siedowse struct netent *np = NULL; 239374462Salfred char *name, *p, *prefp; 239475801Siedowse struct sockaddr_in sin; 239575861Siedowse struct sockaddr *sa = NULL; 239674462Salfred struct addrinfo hints, *ai = NULL; 239774462Salfred char netname[NI_MAXHOST]; 239874462Salfred long preflen; 23991558Srgrimes 240075635Siedowse p = prefp = NULL; 240174462Salfred if ((opt_flags & OP_MASKLEN) && !maskflg) { 240274462Salfred p = strchr(cp, '/'); 240374462Salfred *p = '\0'; 240474462Salfred prefp = p + 1; 240574462Salfred } 240674462Salfred 240775861Siedowse /* 240875861Siedowse * Check for a numeric address first. We wish to avoid 240975861Siedowse * possible DNS lookups in getnetbyname(). 241075861Siedowse */ 241175861Siedowse if (isxdigit(*cp) || *cp == ':') { 241274462Salfred memset(&hints, 0, sizeof hints); 241375801Siedowse /* Ensure the mask and the network have the same family. */ 241475801Siedowse if (maskflg && (opt_flags & OP_NET)) 241575801Siedowse hints.ai_family = net->nt_net.ss_family; 241675801Siedowse else if (!maskflg && (opt_flags & OP_HAVEMASK)) 241775801Siedowse hints.ai_family = net->nt_mask.ss_family; 241875801Siedowse else 241975801Siedowse hints.ai_family = AF_UNSPEC; 242074462Salfred hints.ai_flags = AI_NUMERICHOST; 242175861Siedowse if (getaddrinfo(cp, NULL, &hints, &ai) == 0) 242275861Siedowse sa = ai->ai_addr; 242375861Siedowse if (sa != NULL && ai->ai_family == AF_INET) { 242474462Salfred /* 242575801Siedowse * The address in `cp' is really a network address, so 242675801Siedowse * use inet_network() to re-interpret this correctly. 242775801Siedowse * e.g. "127.1" means 127.1.0.0, not 127.0.0.1. 242874462Salfred */ 242975801Siedowse bzero(&sin, sizeof sin); 243074462Salfred sin.sin_family = AF_INET; 243174462Salfred sin.sin_len = sizeof sin; 243275801Siedowse sin.sin_addr = inet_makeaddr(inet_network(cp), 0); 243374462Salfred if (debug) 243475801Siedowse fprintf(stderr, "get_net: v4 addr %s\n", 243575801Siedowse inet_ntoa(sin.sin_addr)); 243674462Salfred sa = (struct sockaddr *)&sin; 243775861Siedowse } 243875861Siedowse } 243975861Siedowse if (sa == NULL && (np = getnetbyname(cp)) != NULL) { 244075861Siedowse bzero(&sin, sizeof sin); 244175861Siedowse sin.sin_family = AF_INET; 244275861Siedowse sin.sin_len = sizeof sin; 244375861Siedowse sin.sin_addr = inet_makeaddr(np->n_net, 0); 244475861Siedowse sa = (struct sockaddr *)&sin; 244575861Siedowse } 244675861Siedowse if (sa == NULL) 244774462Salfred goto fail; 244825318Spst 244975801Siedowse if (maskflg) { 245075801Siedowse /* The specified sockaddr is a mask. */ 245175801Siedowse if (checkmask(sa) != 0) 245275801Siedowse goto fail; 245375801Siedowse bcopy(sa, &net->nt_mask, sa->sa_len); 245475801Siedowse opt_flags |= OP_HAVEMASK; 245575801Siedowse } else { 245675801Siedowse /* The specified sockaddr is a network address. */ 245775801Siedowse bcopy(sa, &net->nt_net, sa->sa_len); 245874462Salfred 245975801Siedowse /* Get a network name for the export list. */ 246075801Siedowse if (np) { 246175801Siedowse name = np->n_name; 246275801Siedowse } else if (getnameinfo(sa, sa->sa_len, netname, sizeof netname, 2463146187Sume NULL, 0, NI_NUMERICHOST) == 0) { 246475801Siedowse name = netname; 246575801Siedowse } else { 246675801Siedowse goto fail; 246775801Siedowse } 246875801Siedowse if ((net->nt_name = strdup(name)) == NULL) 246975801Siedowse out_of_mem(); 247075801Siedowse 247175801Siedowse /* 247275801Siedowse * Extract a mask from either a "/<masklen>" suffix, or 247375801Siedowse * from the class of an IPv4 address. 247475801Siedowse */ 247574462Salfred if (opt_flags & OP_MASKLEN) { 247674462Salfred preflen = strtol(prefp, NULL, 10); 247775801Siedowse if (preflen < 0L || preflen == LONG_MAX) 247874462Salfred goto fail; 247975801Siedowse bcopy(sa, &net->nt_mask, sa->sa_len); 248075801Siedowse if (makemask(&net->nt_mask, (int)preflen) != 0) 248175801Siedowse goto fail; 248275801Siedowse opt_flags |= OP_HAVEMASK; 248374462Salfred *p = '/'; 248475801Siedowse } else if (sa->sa_family == AF_INET && 248575801Siedowse (opt_flags & OP_MASK) == 0) { 248675801Siedowse in_addr_t addr; 248774462Salfred 248875801Siedowse addr = ((struct sockaddr_in *)sa)->sin_addr.s_addr; 248975801Siedowse if (IN_CLASSA(addr)) 249075801Siedowse preflen = 8; 249175801Siedowse else if (IN_CLASSB(addr)) 249275801Siedowse preflen = 16; 249375801Siedowse else if (IN_CLASSC(addr)) 249475801Siedowse preflen = 24; 249575801Siedowse else if (IN_CLASSD(addr)) 249675801Siedowse preflen = 28; 249775801Siedowse else 249875801Siedowse preflen = 32; /* XXX */ 249975801Siedowse 250075801Siedowse bcopy(sa, &net->nt_mask, sa->sa_len); 250175801Siedowse makemask(&net->nt_mask, (int)preflen); 250275801Siedowse opt_flags |= OP_HAVEMASK; 250374462Salfred } 250474462Salfred } 250574462Salfred 250674462Salfred if (ai) 250774462Salfred freeaddrinfo(ai); 250874462Salfred return 0; 250974462Salfred 251074462Salfredfail: 251174462Salfred if (ai) 251274462Salfred freeaddrinfo(ai); 251374462Salfred return 1; 25141558Srgrimes} 25151558Srgrimes 25161558Srgrimes/* 25171558Srgrimes * Parse out the next white space separated field 25181558Srgrimes */ 25191558Srgrimesvoid 2520216587Scharniernextfield(char **cp, char **endcp) 25211558Srgrimes{ 25221558Srgrimes char *p; 25231558Srgrimes 25241558Srgrimes p = *cp; 25251558Srgrimes while (*p == ' ' || *p == '\t') 25261558Srgrimes p++; 25271558Srgrimes if (*p == '\n' || *p == '\0') 25281558Srgrimes *cp = *endcp = p; 25291558Srgrimes else { 25301558Srgrimes *cp = p++; 25311558Srgrimes while (*p != ' ' && *p != '\t' && *p != '\n' && *p != '\0') 25321558Srgrimes p++; 25331558Srgrimes *endcp = p; 25341558Srgrimes } 25351558Srgrimes} 25361558Srgrimes 25371558Srgrimes/* 25381558Srgrimes * Get an exports file line. Skip over blank lines and handle line 25391558Srgrimes * continuations. 25401558Srgrimes */ 25411558Srgrimesint 2542216587Scharnierget_line(void) 25431558Srgrimes{ 25441558Srgrimes char *p, *cp; 254596622Siedowse size_t len; 25461558Srgrimes int totlen, cont_line; 25471558Srgrimes 25481558Srgrimes /* 25491558Srgrimes * Loop around ignoring blank lines and getting all continuation lines. 25501558Srgrimes */ 25511558Srgrimes p = line; 25521558Srgrimes totlen = 0; 25531558Srgrimes do { 255496622Siedowse if ((p = fgetln(exp_file, &len)) == NULL) 25551558Srgrimes return (0); 25561558Srgrimes cp = p + len - 1; 25571558Srgrimes cont_line = 0; 25581558Srgrimes while (cp >= p && 25591558Srgrimes (*cp == ' ' || *cp == '\t' || *cp == '\n' || *cp == '\\')) { 25601558Srgrimes if (*cp == '\\') 25611558Srgrimes cont_line = 1; 25621558Srgrimes cp--; 25631558Srgrimes len--; 25641558Srgrimes } 256579117Sdd if (cont_line) { 256679117Sdd *++cp = ' '; 256779117Sdd len++; 256879117Sdd } 256996622Siedowse if (linesize < len + totlen + 1) { 257096622Siedowse linesize = len + totlen + 1; 257196622Siedowse line = realloc(line, linesize); 257296622Siedowse if (line == NULL) 257396622Siedowse out_of_mem(); 25741558Srgrimes } 257596622Siedowse memcpy(line + totlen, p, len); 257696622Siedowse totlen += len; 257796622Siedowse line[totlen] = '\0'; 25781558Srgrimes } while (totlen == 0 || cont_line); 25791558Srgrimes return (1); 25801558Srgrimes} 25811558Srgrimes 25821558Srgrimes/* 25831558Srgrimes * Parse a description of a credential. 25841558Srgrimes */ 25851558Srgrimesvoid 2586216587Scharnierparsecred(char *namelist, struct xucred *cr) 25871558Srgrimes{ 25881558Srgrimes char *name; 25891558Srgrimes int cnt; 25901558Srgrimes char *names; 25911558Srgrimes struct passwd *pw; 25921558Srgrimes struct group *gr; 2593194498Sbrooks gid_t groups[XU_NGROUPS + 1]; 2594136051Sstefanf int ngroups; 25951558Srgrimes 259691354Sdd cr->cr_version = XUCRED_VERSION; 25971558Srgrimes /* 259837663Scharnier * Set up the unprivileged user. 25991558Srgrimes */ 26001558Srgrimes cr->cr_uid = -2; 26011558Srgrimes cr->cr_groups[0] = -2; 26021558Srgrimes cr->cr_ngroups = 1; 26031558Srgrimes /* 26041558Srgrimes * Get the user's password table entry. 26051558Srgrimes */ 26061558Srgrimes names = strsep(&namelist, " \t\n"); 26071558Srgrimes name = strsep(&names, ":"); 26081558Srgrimes if (isdigit(*name) || *name == '-') 26091558Srgrimes pw = getpwuid(atoi(name)); 26101558Srgrimes else 26111558Srgrimes pw = getpwnam(name); 26121558Srgrimes /* 26131558Srgrimes * Credentials specified as those of a user. 26141558Srgrimes */ 26151558Srgrimes if (names == NULL) { 26161558Srgrimes if (pw == NULL) { 261737663Scharnier syslog(LOG_ERR, "unknown user: %s", name); 26181558Srgrimes return; 26191558Srgrimes } 26201558Srgrimes cr->cr_uid = pw->pw_uid; 2621194498Sbrooks ngroups = XU_NGROUPS + 1; 26221558Srgrimes if (getgrouplist(pw->pw_name, pw->pw_gid, groups, &ngroups)) 262337663Scharnier syslog(LOG_ERR, "too many groups"); 26241558Srgrimes /* 2625136051Sstefanf * Compress out duplicate. 26261558Srgrimes */ 26271558Srgrimes cr->cr_ngroups = ngroups - 1; 26281558Srgrimes cr->cr_groups[0] = groups[0]; 26291558Srgrimes for (cnt = 2; cnt < ngroups; cnt++) 26301558Srgrimes cr->cr_groups[cnt - 1] = groups[cnt]; 26311558Srgrimes return; 26321558Srgrimes } 26331558Srgrimes /* 26341558Srgrimes * Explicit credential specified as a colon separated list: 26351558Srgrimes * uid:gid:gid:... 26361558Srgrimes */ 26371558Srgrimes if (pw != NULL) 26381558Srgrimes cr->cr_uid = pw->pw_uid; 26391558Srgrimes else if (isdigit(*name) || *name == '-') 26401558Srgrimes cr->cr_uid = atoi(name); 26411558Srgrimes else { 264237663Scharnier syslog(LOG_ERR, "unknown user: %s", name); 26431558Srgrimes return; 26441558Srgrimes } 26451558Srgrimes cr->cr_ngroups = 0; 2646194498Sbrooks while (names != NULL && *names != '\0' && cr->cr_ngroups < XU_NGROUPS) { 26471558Srgrimes name = strsep(&names, ":"); 26481558Srgrimes if (isdigit(*name) || *name == '-') { 26491558Srgrimes cr->cr_groups[cr->cr_ngroups++] = atoi(name); 26501558Srgrimes } else { 26511558Srgrimes if ((gr = getgrnam(name)) == NULL) { 265237663Scharnier syslog(LOG_ERR, "unknown group: %s", name); 26531558Srgrimes continue; 26541558Srgrimes } 26551558Srgrimes cr->cr_groups[cr->cr_ngroups++] = gr->gr_gid; 26561558Srgrimes } 26571558Srgrimes } 2658194498Sbrooks if (names != NULL && *names != '\0' && cr->cr_ngroups == XU_NGROUPS) 265937663Scharnier syslog(LOG_ERR, "too many groups"); 26601558Srgrimes} 26611558Srgrimes 2662194880Sdfr#define STRSIZ (MNTNAMLEN+MNTPATHLEN+50) 26631558Srgrimes/* 26641558Srgrimes * Routines that maintain the remote mounttab 26651558Srgrimes */ 26661558Srgrimesvoid 2667216587Scharnierget_mountlist(void) 26681558Srgrimes{ 26691558Srgrimes struct mountlist *mlp, **mlpp; 267023681Speter char *host, *dirp, *cp; 26711558Srgrimes char str[STRSIZ]; 26721558Srgrimes FILE *mlfile; 26731558Srgrimes 26741558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "r")) == NULL) { 267553117Sbillf if (errno == ENOENT) 267653117Sbillf return; 267753117Sbillf else { 267853117Sbillf syslog(LOG_ERR, "can't open %s", _PATH_RMOUNTLIST); 267953117Sbillf return; 268053117Sbillf } 26811558Srgrimes } 26821558Srgrimes mlpp = &mlhead; 26831558Srgrimes while (fgets(str, STRSIZ, mlfile) != NULL) { 268423681Speter cp = str; 268523681Speter host = strsep(&cp, " \t\n"); 268623681Speter dirp = strsep(&cp, " \t\n"); 268723681Speter if (host == NULL || dirp == NULL) 26881558Srgrimes continue; 26891558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 269037663Scharnier if (mlp == (struct mountlist *)NULL) 269137663Scharnier out_of_mem(); 2692194880Sdfr strncpy(mlp->ml_host, host, MNTNAMLEN); 2693194880Sdfr mlp->ml_host[MNTNAMLEN] = '\0'; 2694194880Sdfr strncpy(mlp->ml_dirp, dirp, MNTPATHLEN); 2695194880Sdfr mlp->ml_dirp[MNTPATHLEN] = '\0'; 26961558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 26971558Srgrimes *mlpp = mlp; 26981558Srgrimes mlpp = &mlp->ml_next; 26991558Srgrimes } 27001558Srgrimes fclose(mlfile); 27011558Srgrimes} 27021558Srgrimes 270375635Siedowsevoid 270475635Siedowsedel_mlist(char *hostp, char *dirp) 27051558Srgrimes{ 27061558Srgrimes struct mountlist *mlp, **mlpp; 27071558Srgrimes struct mountlist *mlp2; 27081558Srgrimes FILE *mlfile; 27091558Srgrimes int fnd = 0; 27101558Srgrimes 27111558Srgrimes mlpp = &mlhead; 27121558Srgrimes mlp = mlhead; 27131558Srgrimes while (mlp) { 27141558Srgrimes if (!strcmp(mlp->ml_host, hostp) && 27151558Srgrimes (!dirp || !strcmp(mlp->ml_dirp, dirp))) { 27161558Srgrimes fnd = 1; 27171558Srgrimes mlp2 = mlp; 27181558Srgrimes *mlpp = mlp = mlp->ml_next; 27191558Srgrimes free((caddr_t)mlp2); 27201558Srgrimes } else { 27211558Srgrimes mlpp = &mlp->ml_next; 27221558Srgrimes mlp = mlp->ml_next; 27231558Srgrimes } 27241558Srgrimes } 27251558Srgrimes if (fnd) { 27261558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "w")) == NULL) { 272737663Scharnier syslog(LOG_ERR,"can't update %s", _PATH_RMOUNTLIST); 27281558Srgrimes return; 27291558Srgrimes } 27301558Srgrimes mlp = mlhead; 27311558Srgrimes while (mlp) { 27321558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 27331558Srgrimes mlp = mlp->ml_next; 27341558Srgrimes } 27351558Srgrimes fclose(mlfile); 27361558Srgrimes } 27371558Srgrimes} 27381558Srgrimes 27391558Srgrimesvoid 2740216587Scharnieradd_mlist(char *hostp, char *dirp) 27411558Srgrimes{ 27421558Srgrimes struct mountlist *mlp, **mlpp; 27431558Srgrimes FILE *mlfile; 27441558Srgrimes 27451558Srgrimes mlpp = &mlhead; 27461558Srgrimes mlp = mlhead; 27471558Srgrimes while (mlp) { 27481558Srgrimes if (!strcmp(mlp->ml_host, hostp) && !strcmp(mlp->ml_dirp, dirp)) 27491558Srgrimes return; 27501558Srgrimes mlpp = &mlp->ml_next; 27511558Srgrimes mlp = mlp->ml_next; 27521558Srgrimes } 27531558Srgrimes mlp = (struct mountlist *)malloc(sizeof (*mlp)); 275437663Scharnier if (mlp == (struct mountlist *)NULL) 275537663Scharnier out_of_mem(); 2756194880Sdfr strncpy(mlp->ml_host, hostp, MNTNAMLEN); 2757194880Sdfr mlp->ml_host[MNTNAMLEN] = '\0'; 2758194880Sdfr strncpy(mlp->ml_dirp, dirp, MNTPATHLEN); 2759194880Sdfr mlp->ml_dirp[MNTPATHLEN] = '\0'; 27601558Srgrimes mlp->ml_next = (struct mountlist *)NULL; 27611558Srgrimes *mlpp = mlp; 27621558Srgrimes if ((mlfile = fopen(_PATH_RMOUNTLIST, "a")) == NULL) { 276337663Scharnier syslog(LOG_ERR, "can't update %s", _PATH_RMOUNTLIST); 27641558Srgrimes return; 27651558Srgrimes } 27661558Srgrimes fprintf(mlfile, "%s %s\n", mlp->ml_host, mlp->ml_dirp); 27671558Srgrimes fclose(mlfile); 27681558Srgrimes} 27691558Srgrimes 27701558Srgrimes/* 27711558Srgrimes * Free up a group list. 27721558Srgrimes */ 27731558Srgrimesvoid 2774216587Scharnierfree_grp(struct grouplist *grp) 27751558Srgrimes{ 27761558Srgrimes if (grp->gr_type == GT_HOST) { 277774462Salfred if (grp->gr_ptr.gt_addrinfo != NULL) 277874462Salfred freeaddrinfo(grp->gr_ptr.gt_addrinfo); 27791558Srgrimes } else if (grp->gr_type == GT_NET) { 27801558Srgrimes if (grp->gr_ptr.gt_net.nt_name) 27811558Srgrimes free(grp->gr_ptr.gt_net.nt_name); 27821558Srgrimes } 27831558Srgrimes free((caddr_t)grp); 27841558Srgrimes} 27851558Srgrimes 27861558Srgrimes#ifdef DEBUG 27871558Srgrimesvoid 27881558SrgrimesSYSLOG(int pri, const char *fmt, ...) 27891558Srgrimes{ 27901558Srgrimes va_list ap; 27911558Srgrimes 27921558Srgrimes va_start(ap, fmt); 27931558Srgrimes vfprintf(stderr, fmt, ap); 27941558Srgrimes va_end(ap); 27951558Srgrimes} 27961558Srgrimes#endif /* DEBUG */ 27971558Srgrimes 27981558Srgrimes/* 27991558Srgrimes * Check options for consistency. 28001558Srgrimes */ 28011558Srgrimesint 2802216587Scharniercheck_options(struct dirlist *dp) 28031558Srgrimes{ 28041558Srgrimes 2805192934Srmacklem if (v4root_phase == 0 && dp == NULL) 28061558Srgrimes return (1); 280783653Speter if ((opt_flags & (OP_MAPROOT | OP_MAPALL)) == (OP_MAPROOT | OP_MAPALL)) { 280883653Speter syslog(LOG_ERR, "-mapall and -maproot mutually exclusive"); 28091558Srgrimes return (1); 28101558Srgrimes } 28111558Srgrimes if ((opt_flags & OP_MASK) && (opt_flags & OP_NET) == 0) { 281275801Siedowse syslog(LOG_ERR, "-mask requires -network"); 281375801Siedowse return (1); 28141558Srgrimes } 281575801Siedowse if ((opt_flags & OP_NET) && (opt_flags & OP_HAVEMASK) == 0) { 281675801Siedowse syslog(LOG_ERR, "-network requires mask specification"); 281775801Siedowse return (1); 281875801Siedowse } 281975801Siedowse if ((opt_flags & OP_MASK) && (opt_flags & OP_MASKLEN)) { 282075801Siedowse syslog(LOG_ERR, "-mask and /masklen are mutually exclusive"); 282175801Siedowse return (1); 282275801Siedowse } 2823192934Srmacklem if (v4root_phase > 0 && 2824192934Srmacklem (opt_flags & 2825192934Srmacklem ~(OP_SEC | OP_MASK | OP_NET | OP_HAVEMASK | OP_MASKLEN)) != 0) { 2826192934Srmacklem syslog(LOG_ERR,"only -sec,-net,-mask options allowed on V4:"); 2827192934Srmacklem return (1); 2828192934Srmacklem } 2829207689Srmacklem if ((opt_flags & OP_ALLDIRS) && dp->dp_left) { 2830207689Srmacklem syslog(LOG_ERR, "-alldirs has multiple directories"); 2831207689Srmacklem return (1); 2832207689Srmacklem } 28331558Srgrimes return (0); 28341558Srgrimes} 28351558Srgrimes 28361558Srgrimes/* 28371558Srgrimes * Check an absolute directory path for any symbolic links. Return true 28381558Srgrimes */ 28391558Srgrimesint 2840216587Scharniercheck_dirpath(char *dirp) 28411558Srgrimes{ 28421558Srgrimes char *cp; 28431558Srgrimes int ret = 1; 28441558Srgrimes struct stat sb; 28451558Srgrimes 28461558Srgrimes cp = dirp + 1; 28471558Srgrimes while (*cp && ret) { 28481558Srgrimes if (*cp == '/') { 28491558Srgrimes *cp = '\0'; 28509336Sdfr if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode)) 28511558Srgrimes ret = 0; 28521558Srgrimes *cp = '/'; 28531558Srgrimes } 28541558Srgrimes cp++; 28551558Srgrimes } 28569336Sdfr if (lstat(dirp, &sb) < 0 || !S_ISDIR(sb.st_mode)) 28571558Srgrimes ret = 0; 28581558Srgrimes return (ret); 28591558Srgrimes} 28609336Sdfr 286175801Siedowse/* 286275801Siedowse * Make a netmask according to the specified prefix length. The ss_family 286375801Siedowse * and other non-address fields must be initialised before calling this. 286475801Siedowse */ 286575801Siedowseint 286675801Siedowsemakemask(struct sockaddr_storage *ssp, int bitlen) 286774462Salfred{ 286875801Siedowse u_char *p; 286975801Siedowse int bits, i, len; 287074462Salfred 287175801Siedowse if ((p = sa_rawaddr((struct sockaddr *)ssp, &len)) == NULL) 287275801Siedowse return (-1); 2873103949Smike if (bitlen > len * CHAR_BIT) 287475801Siedowse return (-1); 287574462Salfred 287675801Siedowse for (i = 0; i < len; i++) { 2877103949Smike bits = (bitlen > CHAR_BIT) ? CHAR_BIT : bitlen; 287875801Siedowse *p++ = (1 << bits) - 1; 287975801Siedowse bitlen -= bits; 288074462Salfred } 288175801Siedowse return 0; 288274462Salfred} 288374462Salfred 288475801Siedowse/* 288575801Siedowse * Check that the sockaddr is a valid netmask. Returns 0 if the mask 288675801Siedowse * is acceptable (i.e. of the form 1...10....0). 288775801Siedowse */ 288875801Siedowseint 288975801Siedowsecheckmask(struct sockaddr *sa) 289074462Salfred{ 289175801Siedowse u_char *mask; 289275801Siedowse int i, len; 289374462Salfred 289475801Siedowse if ((mask = sa_rawaddr(sa, &len)) == NULL) 289575801Siedowse return (-1); 289675801Siedowse 289775801Siedowse for (i = 0; i < len; i++) 289875801Siedowse if (mask[i] != 0xff) 289975801Siedowse break; 290075801Siedowse if (i < len) { 290175801Siedowse if (~mask[i] & (u_char)(~mask[i] + 1)) 290275801Siedowse return (-1); 290375801Siedowse i++; 290474462Salfred } 290575801Siedowse for (; i < len; i++) 290675801Siedowse if (mask[i] != 0) 290775801Siedowse return (-1); 290875801Siedowse return (0); 290974462Salfred} 291074462Salfred 291175801Siedowse/* 291275801Siedowse * Compare two sockaddrs according to a specified mask. Return zero if 291375801Siedowse * `sa1' matches `sa2' when filtered by the netmask in `samask'. 291475801Siedowse * If samask is NULL, perform a full comparision. 291575801Siedowse */ 291675801Siedowseint 291775801Siedowsesacmp(struct sockaddr *sa1, struct sockaddr *sa2, struct sockaddr *samask) 291874462Salfred{ 291975801Siedowse unsigned char *p1, *p2, *mask; 292075801Siedowse int len, i; 292174462Salfred 292275801Siedowse if (sa1->sa_family != sa2->sa_family || 292375801Siedowse (p1 = sa_rawaddr(sa1, &len)) == NULL || 292475801Siedowse (p2 = sa_rawaddr(sa2, NULL)) == NULL) 292575801Siedowse return (1); 292675801Siedowse 292775801Siedowse switch (sa1->sa_family) { 292874462Salfred case AF_INET6: 292975801Siedowse if (((struct sockaddr_in6 *)sa1)->sin6_scope_id != 293075801Siedowse ((struct sockaddr_in6 *)sa2)->sin6_scope_id) 293175801Siedowse return (1); 293274462Salfred break; 293374462Salfred } 293474462Salfred 293575801Siedowse /* Simple binary comparison if no mask specified. */ 293675801Siedowse if (samask == NULL) 293775801Siedowse return (memcmp(p1, p2, len)); 293874462Salfred 293975801Siedowse /* Set up the mask, and do a mask-based comparison. */ 294075801Siedowse if (sa1->sa_family != samask->sa_family || 294175801Siedowse (mask = sa_rawaddr(samask, NULL)) == NULL) 294275801Siedowse return (1); 294374462Salfred 294475801Siedowse for (i = 0; i < len; i++) 294575801Siedowse if ((p1[i] & mask[i]) != (p2[i] & mask[i])) 294675801Siedowse return (1); 294775801Siedowse return (0); 294874462Salfred} 294974462Salfred 295075801Siedowse/* 295175801Siedowse * Return a pointer to the part of the sockaddr that contains the 295275801Siedowse * raw address, and set *nbytes to its length in bytes. Returns 295375801Siedowse * NULL if the address family is unknown. 295475801Siedowse */ 295575801Siedowsevoid * 295675801Siedowsesa_rawaddr(struct sockaddr *sa, int *nbytes) { 295775801Siedowse void *p; 295874462Salfred int len; 295974462Salfred 296075801Siedowse switch (sa->sa_family) { 296174462Salfred case AF_INET: 296275801Siedowse len = sizeof(((struct sockaddr_in *)sa)->sin_addr); 296375801Siedowse p = &((struct sockaddr_in *)sa)->sin_addr; 296474462Salfred break; 296574462Salfred case AF_INET6: 296675801Siedowse len = sizeof(((struct sockaddr_in6 *)sa)->sin6_addr); 296775801Siedowse p = &((struct sockaddr_in6 *)sa)->sin6_addr; 296874462Salfred break; 296974462Salfred default: 297075801Siedowse p = NULL; 297175801Siedowse len = 0; 297274462Salfred } 297374462Salfred 297475801Siedowse if (nbytes != NULL) 297575801Siedowse *nbytes = len; 297675801Siedowse return (p); 297774462Salfred} 297874462Salfred 297975754Siedowsevoid 2980216587Scharnierhuphandler(int sig __unused) 298175754Siedowse{ 298275754Siedowse got_sighup = 1; 298375754Siedowse} 298475754Siedowse 2985216587Scharniervoid terminate(int sig __unused) 298674462Salfred{ 2987149433Spjd pidfile_remove(pfh); 2988194880Sdfr rpcb_unset(MOUNTPROG, MOUNTVERS, NULL); 2989194880Sdfr rpcb_unset(MOUNTPROG, MOUNTVERS3, NULL); 299074462Salfred exit (0); 299174462Salfred} 2992192934Srmacklem 2993