1 /* $NetBSD: lockd.c,v 1.4 2000/02/02 18:17:42 bouyer Exp $ */ 2 3 /* 4 * Copyright (c) 1995 5 * A.R. Gordon (andrew.gordon@net-tel.co.uk). All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the FreeBSD project 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY ANDREW GORDON AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __RCSID("$NetBSD: lockd.c,v 1.4 2000/02/02 18:17:42 bouyer Exp $"); 39 #endif 40 41 /* 42 * main() function for NFS lock daemon. Most of the code in this 43 * file was generated by running rpcgen /usr/include/rpcsvc/nlm_prot.x. 44 * 45 * The actual program logic is in the file procs.c 46 */ 47 48 #include <err.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <syslog.h> 52 #include <unistd.h> 53 #include <util.h> 54 55 #include <rpc/rpc.h> 56 #include <rpcsvc/sm_inter.h> 57 58 #include "lockd.h" 59 #include "nlm_prot.h" 60 61 /* 62 * XXX - Actual locking is not implemented. Some notes from the FreeBSD 63 * rpc.lockd/handles.c: 64 * 65 * - Need to find all fds in use by a host and free them when host crashes 66 * (need not be efficient) 67 * - Need to find fd corresponding to <inode, device> 68 */ 69 70 typedef struct fdinfo { 71 int fd; /* The file descriptor itself */ 72 int ref_count; /* Count of hosts using the fd - fd is 73 closed when this reaches zero */ 74 ino_t inode_no; /* The inode number of this file. */ 75 dev_t device; /* device on which the file lives. */ 76 struct fdinfo *next; /* Chain of FdInfo structures */ 77 struct fdinfo *prev; 78 } FdInfo; 79 80 int debug_level = 0; /* 0 = no debugging syslog() calls */ 81 int _rpcsvcdirty = 0; 82 83 int main __P((int, char **)); 84 void nlm_prog_1 __P((struct svc_req *, SVCXPRT *)); 85 void nlm_prog_3 __P((struct svc_req *, SVCXPRT *)); 86 void nlm_prog_4 __P((struct svc_req *, SVCXPRT *)); 87 88 int 89 main(argc, argv) 90 int argc; 91 char **argv; 92 { 93 SVCXPRT *transp; 94 int ch; 95 96 while ((ch = getopt(argc, argv, "d:")) != (-1)) { 97 switch (ch) { 98 case 'd': 99 debug_level = atoi(optarg); 100 if (!debug_level) { 101 errx(1, "usage: rpc.lockd [-d <debuglevel>]"); 102 /* NOTREACHED */ 103 } 104 break; 105 default: 106 case '?': 107 errx(1, "usage: rpc.lockd [-d <debuglevel>]"); 108 /* NOTREACHED */ 109 } 110 } 111 112 (void)pmap_unset(NLM_PROG, NLM_VERS); 113 (void)pmap_unset(NLM_PROG, NLM_VERSX); 114 (void)pmap_unset(NLM_PROG, NLM_VERS4); 115 116 transp = svcudp_create(RPC_ANYSOCK); 117 if (transp == NULL) { 118 errx(1, "cannot create udp service."); 119 /* NOTREACHED */ 120 } 121 if (!svc_register(transp, NLM_PROG, NLM_VERS, 122 nlm_prog_1, IPPROTO_UDP)) { 123 errx(1, "unable to register (NLM_PROG, NLM_VERS, udp)."); 124 /* NOTREACHED */ 125 } 126 if (!svc_register(transp, NLM_PROG, NLM_VERSX, 127 nlm_prog_3, IPPROTO_UDP)) { 128 errx(1, "unable to register (NLM_PROG, NLM_VERSX, udp)."); 129 /* NOTREACHED */ 130 } 131 if (!svc_register(transp, NLM_PROG, NLM_VERS4, 132 nlm_prog_4, IPPROTO_UDP)) { 133 errx(1, "unable to register (NLM_PROG, NLM_VERS4, udp)."); 134 /* NOTREACHED */ 135 } 136 transp = svctcp_create(RPC_ANYSOCK, 0, 0); 137 if (transp == NULL) { 138 errx(1, "cannot create tcp service."); 139 /* NOTREACHED */ 140 } 141 if (!svc_register(transp, NLM_PROG, NLM_VERS, 142 nlm_prog_1, IPPROTO_TCP)) { 143 errx(1, "unable to register (NLM_PROG, NLM_VERS, tcp)."); 144 /* NOTREACHED */ 145 } 146 if (!svc_register(transp, NLM_PROG, NLM_VERSX, 147 nlm_prog_3, IPPROTO_TCP)) { 148 errx(1, "unable to register (NLM_PROG, NLM_VERSX, tcp)."); 149 /* NOTREACHED */ 150 } 151 if (!svc_register(transp, NLM_PROG, NLM_VERS4, 152 nlm_prog_4, IPPROTO_TCP)) { 153 errx(1, "unable to register (NLM_PROG, NLM_VERS4, tcp)."); 154 /* NOTREACHED */ 155 } 156 157 /* 158 * Note that it is NOT sensible to run this program from inetd - the 159 * protocol assumes that it will run immediately at boot time. 160 */ 161 if (daemon(0, 0)) { 162 err(1, "cannot fork"); 163 /* NOTREACHED */ 164 } 165 pidfile(NULL); 166 167 openlog("rpc.lockd", 0, LOG_DAEMON); 168 if (debug_level) 169 syslog(LOG_INFO, "Starting, debug level %d", debug_level); 170 else 171 syslog(LOG_INFO, "Starting"); 172 173 svc_run(); /* Should never return */ 174 exit(1); 175 } 176