usr.sbin/rpc.lockd/lockd.c

   1 /*
   2  * Copyright (c) 1995
   3  *      A.R. Gordon (andrew.gordon@net-tel.co.uk).  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed for the FreeBSD project
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY ANDREW GORDON AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * $FreeBSD: src/usr.sbin/rpc.lockd/lockd.c,v 1.5.2.1 2001/08/01 06:39:36 alfred Exp $
  33  * $DragonFly: src/usr.sbin/rpc.lockd/lockd.c,v 1.5 2005/11/25 00:32:49 swildner Exp $
  34  */
  35
  36 /* main() function for NFS lock daemon.  Most of the code in this       */
  37 /* file was generated by running rpcgen /usr/include/rpcsvc/nlm_prot.x  */
  38 /* The actual program logic is in the file procs.c                      */
  39
  40 #include <err.h>
  41 #include <stdlib.h>
  42 #include <string.h>
  43 #include <rpc/rpc.h>
  44 #include <rpc/pmap_clnt.h>
  45 #include "lockd.h"
  46
  47 void nlm_prog_1(struct svc_req *, SVCXPRT *);
  48 void nlm_prog_3(struct svc_req *, SVCXPRT *);
  49 void nlm_prog_4(struct svc_req *, SVCXPRT *);
  50 static void usage(void);
  51
  52 int debug_level = 0;    /* Zero means no debugging syslog() calls       */
  53
  54 int
  55 main(int argc, char **argv)
  56 {
  57   SVCXPRT *transp;
  58
  59   if (argc > 1)
  60   {
  61     if (strncmp(argv[1], "-d", 2))
  62       usage();
  63     if (argc > 2) debug_level = atoi(argv[2]);
  64     else debug_level = atoi(argv[1] + 2);
  65     /* Ensure at least some debug if -d with no specified level         */
  66     if (!debug_level) debug_level = 1;
  67   }
  68
  69   pmap_unset(NLM_PROG, NLM_VERS);
  70   pmap_unset(NLM_PROG, NLM_VERSX);
  71   pmap_unset(NLM_PROG, NLM4_VERS);
  72
  73   transp = svcudp_create(RPC_ANYSOCK);
  74   if (transp == NULL)
  75     errx(1, "cannot create udp service");
  76   if (!svc_register(transp, NLM_PROG, NLM_VERS, nlm_prog_1, IPPROTO_UDP))
  77     errx(1, "unable to register (NLM_PROG, NLM_VERS, udp)");
  78   if (!svc_register(transp, NLM_PROG, NLM_VERSX, nlm_prog_3, IPPROTO_UDP))
  79     errx(1, "unable to register (NLM_PROG, NLM_VERSX, udp)");
  80   if (!svc_register(transp, NLM_PROG, NLM4_VERS, nlm_prog_4, IPPROTO_UDP))
  81     errx(1, "unable to register (NLM_PROG, NLM4_VERS, udp)");
  82
  83   transp = svctcp_create(RPC_ANYSOCK, 0, 0);
  84   if (transp == NULL)
  85     errx(1, "cannot create tcp service");
  86   if (!svc_register(transp, NLM_PROG, NLM_VERS, nlm_prog_1, IPPROTO_TCP))
  87     errx(1, "unable to register (NLM_PROG, NLM_VERS, tcp)");
  88   if (!svc_register(transp, NLM_PROG, NLM_VERSX, nlm_prog_3, IPPROTO_TCP))
  89     errx(1, "unable to register (NLM_PROG, NLM_VERSX, tcp)");
  90   if (!svc_register(transp, NLM_PROG, NLM4_VERS, nlm_prog_4, IPPROTO_TCP))
  91     errx(1, "unable to register (NLM_PROG, NLM4_VERS, tcp)");
  92
  93   /* Note that it is NOT sensible to run this program from inetd - the  */
  94   /* protocol assumes that it will run immediately at boot time.        */
  95   if (daemon(0,0))
  96     err(1, "fork");
  97   openlog("rpc.lockd", 0, LOG_DAEMON);
  98   if (debug_level) syslog(LOG_INFO, "Starting, debug level %d", debug_level);
  99   else syslog(LOG_INFO, "Starting");
 100
 101   svc_run();    /* Should never return                                  */
 102   exit(1);
 103 }
 104
 105 static void
 106 usage(void)
 107 {
 108       fprintf(stderr, "usage: rpc.lockd [-d [debuglevel]]\n");
 109       exit(1);
 110 }