1 /* $NetBSD: lockd.c,v 1.1 1997/03/10 06:26:20 scottr 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 37 /* 38 * main() function for NFS lock daemon. Most of the code in this 39 * file was generated by running rpcgen /usr/include/rpcsvc/nlm_prot.x. 40 * 41 * The actual program logic is in the file procs.c 42 */ 43 44 #include <stdio.h> 45 #include <syslog.h> 46 47 #include <rpc/rpc.h> 48 #include <rpcsvc/sm_inter.h> 49 50 #include "lockd.h" 51 #include "nlm_prot.h" 52 53 /* 54 * XXX - Actual locking is not implemented. Some notes from the FreeBSD 55 * rpc.lockd/handles.c: 56 * 57 * - Need to find all fds in use by a host and free them when host crashes 58 * (need not be efficient) 59 * - Need to find fd corresponding to <inode, device> 60 */ 61 62 typedef struct fdinfo { 63 int fd; /* The file descriptor itself */ 64 int ref_count; /* Count of hosts using the fd - fd is 65 closed when this reaches zero */ 66 ino_t inode_no; /* The inode number of this file. */ 67 dev_t device; /* device on which the file lives. */ 68 struct fdinfo *next; /* Chain of FdInfo structures */ 69 struct fdinfo *prev; 70 } FdInfo; 71 72 int debug_level = 0; /* 0 = no debugging syslog() calls */ 73 int _rpcsvcdirty = 0; 74 75 void nlm_prog_1 __P((struct svc_req *, SVCXPRT *)); 76 void nlm_prog_3 __P((struct svc_req *, SVCXPRT *)); 77 78 main(argc, argv) 79 int argc; 80 char **argv; 81 { 82 extern char *optarg; 83 SVCXPRT *transp; 84 int ch; 85 86 while ((ch = getopt(argc, argv, "d:")) != (-1)) { 87 switch (ch) { 88 case 'd': 89 debug_level = atoi(optarg); 90 if (!debug_level) { 91 errx(1, "usage: rpc.lockd [-d <debuglevel>]"); 92 /* NOTREACHED */ 93 } 94 break; 95 default: 96 case '?': 97 errx(1, "usage: rpc.lockd [-d <debuglevel>]"); 98 /* NOTREACHED */ 99 } 100 } 101 102 (void)pmap_unset(NLM_PROG, NLM_VERS); 103 (void)pmap_unset(NLM_PROG, NLM_VERSX); 104 105 transp = svcudp_create(RPC_ANYSOCK); 106 if (transp == NULL) { 107 errx(1, "cannot create udp service."); 108 /* NOTREACHED */ 109 } 110 if (!svc_register(transp, NLM_PROG, NLM_VERS, 111 nlm_prog_1, IPPROTO_UDP)) { 112 errx(1, "unable to register (NLM_PROG, NLM_VERS, udp)."); 113 /* NOTREACHED */ 114 } 115 if (!svc_register(transp, NLM_PROG, NLM_VERSX, 116 nlm_prog_3, IPPROTO_UDP)) { 117 errx(1, "unable to register (NLM_PROG, NLM_VERSX, udp)."); 118 /* NOTREACHED */ 119 } 120 transp = svctcp_create(RPC_ANYSOCK, 0, 0); 121 if (transp == NULL) { 122 errx(1, "cannot create tcp service."); 123 /* NOTREACHED */ 124 } 125 if (!svc_register(transp, NLM_PROG, NLM_VERS, 126 nlm_prog_1, IPPROTO_TCP)) { 127 errx(1, "unable to register (NLM_PROG, NLM_VERS, tcp)."); 128 /* NOTREACHED */ 129 } 130 if (!svc_register(transp, NLM_PROG, NLM_VERSX, 131 nlm_prog_3, IPPROTO_TCP)) { 132 errx(1, "unable to register (NLM_PROG, NLM_VERSX, tcp)."); 133 /* NOTREACHED */ 134 } 135 136 /* 137 * Note that it is NOT sensible to run this program from inetd - the 138 * protocol assumes that it will run immediately at boot time. 139 */ 140 if (daemon(0, 0)) { 141 err(1, "cannot fork"); 142 /* NOTREACHED */ 143 } 144 145 openlog("rpc.lockd", 0, LOG_DAEMON); 146 if (debug_level) 147 syslog(LOG_INFO, "Starting, debug level %d", debug_level); 148 else 149 syslog(LOG_INFO, "Starting"); 150 151 svc_run(); /* Should never return */ 152 exit(1); 153 } 154