1026 lines
25 KiB
C
1026 lines
25 KiB
C
/* $NetBSD: lockd.c,v 1.7 2000/08/12 18:08:44 thorpej Exp $ */
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/* $FreeBSD$ */
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/*
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* Copyright (c) 1995
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* A.R. Gordon (andrew.gordon@net-tel.co.uk). All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the FreeBSD project
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ANDREW GORDON AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: lockd.c,v 1.7 2000/08/12 18:08:44 thorpej Exp $");
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#endif
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/*
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* main() function for NFS lock daemon. Most of the code in this
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* file was generated by running rpcgen /usr/include/rpcsvc/nlm_prot.x.
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*
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* The actual program logic is in the file lock_proc.c
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*/
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#include <sys/param.h>
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#include <sys/linker.h>
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#include <sys/module.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <syslog.h>
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#include <signal.h>
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#include <string.h>
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#include <unistd.h>
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#include <libutil.h>
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#include <netconfig.h>
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#include <netdb.h>
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#include <rpc/rpc.h>
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#include <rpc/rpc_com.h>
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#include <rpcsvc/sm_inter.h>
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#include "lockd.h"
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#include <rpcsvc/nlm_prot.h>
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#define GETPORT_MAXTRY 20 /* Max tries to get a port # */
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int debug_level = 0; /* 0 = no debugging syslog() calls */
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int _rpcsvcdirty = 0;
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int grace_expired;
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int nsm_state;
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int kernel_lockd;
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int kernel_lockd_client;
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pid_t client_pid;
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struct mon mon_host;
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char **hosts, *svcport_str = NULL;
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static int mallocd_svcport = 0;
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static int *sock_fd;
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static int sock_fdcnt;
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static int sock_fdpos;
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int nhosts = 0;
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int xcreated = 0;
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char **addrs; /* actually (netid, uaddr) pairs */
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int naddrs; /* count of how many (netid, uaddr) pairs */
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char localhost[] = "localhost";
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static int create_service(struct netconfig *nconf);
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static void complete_service(struct netconfig *nconf, char *port_str);
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static void clearout_service(void);
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void lookup_addresses(struct netconfig *nconf);
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void init_nsm(void);
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void out_of_mem(void);
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void usage(void);
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void sigalarm_handler(void);
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/*
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* XXX move to some header file.
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*/
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#define _PATH_RPCLOCKDSOCK "/var/run/rpclockd.sock"
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int
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main(int argc, char **argv)
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{
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int ch, i, s;
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void *nc_handle;
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char *endptr, **hosts_bak;
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struct sigaction sigalarm;
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int grace_period = 30;
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struct netconfig *nconf;
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int have_v6 = 1;
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int maxrec = RPC_MAXDATASIZE;
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in_port_t svcport = 0;
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int attempt_cnt, port_len, port_pos, ret;
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char **port_list;
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while ((ch = getopt(argc, argv, "d:g:h:p:")) != (-1)) {
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switch (ch) {
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case 'd':
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debug_level = atoi(optarg);
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if (!debug_level) {
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usage();
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/* NOTREACHED */
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}
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break;
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case 'g':
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grace_period = atoi(optarg);
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if (!grace_period) {
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usage();
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/* NOTREACHED */
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}
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break;
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case 'h':
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++nhosts;
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hosts_bak = hosts;
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hosts_bak = realloc(hosts, nhosts * sizeof(char *));
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if (hosts_bak == NULL) {
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if (hosts != NULL) {
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for (i = 0; i < nhosts; i++)
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free(hosts[i]);
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free(hosts);
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out_of_mem();
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}
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}
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hosts = hosts_bak;
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hosts[nhosts - 1] = strdup(optarg);
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if (hosts[nhosts - 1] == NULL) {
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for (i = 0; i < (nhosts - 1); i++)
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free(hosts[i]);
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free(hosts);
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out_of_mem();
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}
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break;
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case 'p':
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endptr = NULL;
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svcport = (in_port_t)strtoul(optarg, &endptr, 10);
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if (endptr == NULL || *endptr != '\0' ||
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svcport == 0 || svcport >= IPPORT_MAX)
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usage();
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svcport_str = strdup(optarg);
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break;
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default:
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case '?':
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usage();
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/* NOTREACHED */
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}
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}
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if (geteuid()) { /* This command allowed only to root */
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fprintf(stderr, "Sorry. You are not superuser\n");
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exit(1);
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}
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kernel_lockd = FALSE;
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kernel_lockd_client = FALSE;
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if (modfind("nfslockd") < 0) {
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if (kldload("nfslockd") < 0) {
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fprintf(stderr, "Can't find or load kernel support for rpc.lockd - using non-kernel implementation\n");
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} else {
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kernel_lockd = TRUE;
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}
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} else {
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kernel_lockd = TRUE;
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}
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if (kernel_lockd) {
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if (getosreldate() >= 800040)
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kernel_lockd_client = TRUE;
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}
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(void)rpcb_unset(NLM_PROG, NLM_SM, NULL);
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(void)rpcb_unset(NLM_PROG, NLM_VERS, NULL);
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(void)rpcb_unset(NLM_PROG, NLM_VERSX, NULL);
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(void)rpcb_unset(NLM_PROG, NLM_VERS4, NULL);
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/*
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* Check if IPv6 support is present.
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*/
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s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
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if (s < 0)
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have_v6 = 0;
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else
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close(s);
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rpc_control(RPC_SVC_CONNMAXREC_SET, &maxrec);
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/*
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* If no hosts were specified, add a wildcard entry to bind to
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* INADDR_ANY. Otherwise make sure 127.0.0.1 and ::1 are added to the
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* list.
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*/
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if (nhosts == 0) {
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hosts = malloc(sizeof(char**));
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if (hosts == NULL)
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out_of_mem();
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hosts[0] = strdup("*");
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nhosts = 1;
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} else {
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hosts_bak = hosts;
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if (have_v6) {
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hosts_bak = realloc(hosts, (nhosts + 2) *
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sizeof(char *));
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if (hosts_bak == NULL) {
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for (i = 0; i < nhosts; i++)
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free(hosts[i]);
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free(hosts);
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out_of_mem();
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} else
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hosts = hosts_bak;
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nhosts += 2;
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hosts[nhosts - 2] = strdup("::1");
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} else {
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hosts_bak = realloc(hosts, (nhosts + 1) * sizeof(char *));
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if (hosts_bak == NULL) {
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for (i = 0; i < nhosts; i++)
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free(hosts[i]);
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free(hosts);
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out_of_mem();
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} else {
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nhosts += 1;
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hosts = hosts_bak;
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}
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}
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hosts[nhosts - 1] = strdup("127.0.0.1");
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}
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if (kernel_lockd) {
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if (!kernel_lockd_client) {
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/*
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* For the case where we have a kernel lockd but it
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* doesn't provide client locking, we run a cut-down
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* RPC service on a local-domain socket. The kernel's
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* RPC server will pass what it can't handle (mainly
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* client replies) down to us.
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*/
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struct sockaddr_un sun;
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int fd, oldmask;
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SVCXPRT *xprt;
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memset(&sun, 0, sizeof sun);
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sun.sun_family = AF_LOCAL;
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unlink(_PATH_RPCLOCKDSOCK);
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strcpy(sun.sun_path, _PATH_RPCLOCKDSOCK);
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sun.sun_len = SUN_LEN(&sun);
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fd = socket(AF_LOCAL, SOCK_STREAM, 0);
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if (!fd) {
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err(1, "Can't create local lockd socket");
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}
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oldmask = umask(S_IXUSR|S_IRWXG|S_IRWXO);
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if (bind(fd, (struct sockaddr *) &sun, sun.sun_len) < 0) {
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err(1, "Can't bind local lockd socket");
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}
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umask(oldmask);
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if (listen(fd, SOMAXCONN) < 0) {
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err(1, "Can't listen on local lockd socket");
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}
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xprt = svc_vc_create(fd, RPC_MAXDATASIZE, RPC_MAXDATASIZE);
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if (!xprt) {
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err(1, "Can't create transport for local lockd socket");
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}
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if (!svc_reg(xprt, NLM_PROG, NLM_VERS4, nlm_prog_4, NULL)) {
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err(1, "Can't register service for local lockd socket");
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}
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}
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/*
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* We need to look up the addresses so that we can
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* hand uaddrs (ascii encoded address+port strings) to
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* the kernel.
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*/
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nc_handle = setnetconfig();
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while ((nconf = getnetconfig(nc_handle))) {
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/* We want to listen only on udp6, tcp6, udp, tcp transports */
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if (nconf->nc_flag & NC_VISIBLE) {
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/* Skip if there's no IPv6 support */
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if (have_v6 == 0 && strcmp(nconf->nc_protofmly, "inet6") == 0) {
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/* DO NOTHING */
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} else {
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lookup_addresses(nconf);
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}
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}
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}
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endnetconfig(nc_handle);
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} else {
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attempt_cnt = 1;
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sock_fdcnt = 0;
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sock_fd = NULL;
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port_list = NULL;
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port_len = 0;
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nc_handle = setnetconfig();
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while ((nconf = getnetconfig(nc_handle))) {
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/* We want to listen only on udp6, tcp6, udp, tcp transports */
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if (nconf->nc_flag & NC_VISIBLE) {
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/* Skip if there's no IPv6 support */
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if (have_v6 == 0 && strcmp(nconf->nc_protofmly, "inet6") == 0) {
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/* DO NOTHING */
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} else {
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ret = create_service(nconf);
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if (ret == 1)
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/* Ignore this call */
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continue;
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if (ret < 0) {
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/*
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* Failed to bind port, so close
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* off all sockets created and
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* try again if the port# was
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* dynamically assigned via
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* bind(2).
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*/
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clearout_service();
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if (mallocd_svcport != 0 &&
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attempt_cnt <
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GETPORT_MAXTRY) {
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free(svcport_str);
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svcport_str = NULL;
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mallocd_svcport = 0;
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} else {
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errno = EADDRINUSE;
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syslog(LOG_ERR,
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"bindresvport_sa: %m");
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exit(1);
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}
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/*
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* Start over at the first
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* service.
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*/
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free(sock_fd);
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sock_fdcnt = 0;
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sock_fd = NULL;
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nc_handle = setnetconfig();
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attempt_cnt++;
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} else if (mallocd_svcport != 0 &&
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attempt_cnt == GETPORT_MAXTRY) {
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/*
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* For the last attempt, allow
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* different port #s for each
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* nconf by saving the
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* svcport_str and setting it
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* back to NULL.
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*/
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port_list = realloc(port_list,
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(port_len + 1) *
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sizeof(char *));
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if (port_list == NULL)
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out_of_mem();
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port_list[port_len++] =
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svcport_str;
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svcport_str = NULL;
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mallocd_svcport = 0;
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}
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}
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}
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}
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/*
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* Successfully bound the ports, so call complete_service() to
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* do the rest of the setup on the service(s).
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*/
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sock_fdpos = 0;
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port_pos = 0;
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nc_handle = setnetconfig();
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while ((nconf = getnetconfig(nc_handle))) {
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/* We want to listen only on udp6, tcp6, udp, tcp transports */
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if (nconf->nc_flag & NC_VISIBLE) {
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/* Skip if there's no IPv6 support */
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if (have_v6 == 0 && strcmp(nconf->nc_protofmly, "inet6") == 0) {
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/* DO NOTHING */
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} else if (port_list != NULL) {
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if (port_pos >= port_len) {
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syslog(LOG_ERR,
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"too many port#s");
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exit(1);
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}
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complete_service(nconf,
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port_list[port_pos++]);
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} else
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complete_service(nconf, svcport_str);
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}
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}
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endnetconfig(nc_handle);
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free(sock_fd);
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if (port_list != NULL) {
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for (port_pos = 0; port_pos < port_len; port_pos++)
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free(port_list[port_pos]);
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free(port_list);
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}
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}
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/*
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* Note that it is NOT sensible to run this program from inetd - the
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* protocol assumes that it will run immediately at boot time.
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*/
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if (daemon(0, debug_level > 0)) {
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err(1, "cannot fork");
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/* NOTREACHED */
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}
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openlog("rpc.lockd", 0, LOG_DAEMON);
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if (debug_level)
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syslog(LOG_INFO, "Starting, debug level %d", debug_level);
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else
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syslog(LOG_INFO, "Starting");
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sigalarm.sa_handler = (sig_t) sigalarm_handler;
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sigemptyset(&sigalarm.sa_mask);
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sigalarm.sa_flags = SA_RESETHAND; /* should only happen once */
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sigalarm.sa_flags |= SA_RESTART;
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if (sigaction(SIGALRM, &sigalarm, NULL) != 0) {
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syslog(LOG_WARNING, "sigaction(SIGALRM) failed: %s",
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strerror(errno));
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exit(1);
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}
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if (kernel_lockd) {
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if (!kernel_lockd_client) {
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init_nsm();
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client_pid = client_request();
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/*
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* Create a child process to enter the kernel and then
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* wait for RPCs on our local domain socket.
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*/
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if (!fork())
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nlm_syscall(debug_level, grace_period,
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naddrs, addrs);
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else
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svc_run();
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} else {
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/*
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* The kernel lockd implementation provides
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* both client and server so we don't need to
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* do anything else.
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*/
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nlm_syscall(debug_level, grace_period, naddrs, addrs);
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}
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} else {
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grace_expired = 0;
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alarm(grace_period);
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init_nsm();
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client_pid = client_request();
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svc_run(); /* Should never return */
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}
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exit(1);
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}
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|
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/*
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|
* This routine creates and binds sockets on the appropriate
|
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* addresses. It gets called one time for each transport.
|
|
* It returns 0 upon success, 1 for ingore the call and -1 to indicate
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* bind failed with EADDRINUSE.
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* Any file descriptors that have been created are stored in sock_fd and
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* the total count of them is maintained in sock_fdcnt.
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*/
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static int
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create_service(struct netconfig *nconf)
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{
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struct addrinfo hints, *res = NULL;
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struct sockaddr_in *sin;
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struct sockaddr_in6 *sin6;
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struct __rpc_sockinfo si;
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int aicode;
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int fd;
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int nhostsbak;
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int r;
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u_int32_t host_addr[4]; /* IPv4 or IPv6 */
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|
int mallocd_res;
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if ((nconf->nc_semantics != NC_TPI_CLTS) &&
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(nconf->nc_semantics != NC_TPI_COTS) &&
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(nconf->nc_semantics != NC_TPI_COTS_ORD))
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return (1); /* not my type */
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|
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/*
|
|
* XXX - using RPC library internal functions.
|
|
*/
|
|
if (!__rpc_nconf2sockinfo(nconf, &si)) {
|
|
syslog(LOG_ERR, "cannot get information for %s",
|
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nconf->nc_netid);
|
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return (1);
|
|
}
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|
|
/* Get rpc.statd's address on this transport */
|
|
memset(&hints, 0, sizeof hints);
|
|
hints.ai_flags = AI_PASSIVE;
|
|
hints.ai_family = si.si_af;
|
|
hints.ai_socktype = si.si_socktype;
|
|
hints.ai_protocol = si.si_proto;
|
|
|
|
/*
|
|
* Bind to specific IPs if asked to
|
|
*/
|
|
nhostsbak = nhosts;
|
|
while (nhostsbak > 0) {
|
|
--nhostsbak;
|
|
sock_fd = realloc(sock_fd, (sock_fdcnt + 1) * sizeof(int));
|
|
if (sock_fd == NULL)
|
|
out_of_mem();
|
|
sock_fd[sock_fdcnt++] = -1; /* Set invalid for now. */
|
|
mallocd_res = 0;
|
|
|
|
/*
|
|
* XXX - using RPC library internal functions.
|
|
*/
|
|
if ((fd = __rpc_nconf2fd(nconf)) < 0) {
|
|
syslog(LOG_ERR, "cannot create socket for %s",
|
|
nconf->nc_netid);
|
|
continue;
|
|
}
|
|
|
|
switch (hints.ai_family) {
|
|
case AF_INET:
|
|
if (inet_pton(AF_INET, hosts[nhostsbak],
|
|
host_addr) == 1) {
|
|
hints.ai_flags |= AI_NUMERICHOST;
|
|
} else {
|
|
/*
|
|
* Skip if we have an AF_INET6 address.
|
|
*/
|
|
if (inet_pton(AF_INET6, hosts[nhostsbak],
|
|
host_addr) == 1) {
|
|
close(fd);
|
|
continue;
|
|
}
|
|
}
|
|
break;
|
|
case AF_INET6:
|
|
if (inet_pton(AF_INET6, hosts[nhostsbak],
|
|
host_addr) == 1) {
|
|
hints.ai_flags |= AI_NUMERICHOST;
|
|
} else {
|
|
/*
|
|
* Skip if we have an AF_INET address.
|
|
*/
|
|
if (inet_pton(AF_INET, hosts[nhostsbak],
|
|
host_addr) == 1) {
|
|
close(fd);
|
|
continue;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* If no hosts were specified, just bind to INADDR_ANY
|
|
*/
|
|
if (strcmp("*", hosts[nhostsbak]) == 0) {
|
|
if (svcport_str == NULL) {
|
|
res = malloc(sizeof(struct addrinfo));
|
|
if (res == NULL)
|
|
out_of_mem();
|
|
mallocd_res = 1;
|
|
res->ai_flags = hints.ai_flags;
|
|
res->ai_family = hints.ai_family;
|
|
res->ai_protocol = hints.ai_protocol;
|
|
switch (res->ai_family) {
|
|
case AF_INET:
|
|
sin = malloc(sizeof(struct sockaddr_in));
|
|
if (sin == NULL)
|
|
out_of_mem();
|
|
sin->sin_family = AF_INET;
|
|
sin->sin_port = htons(0);
|
|
sin->sin_addr.s_addr = htonl(INADDR_ANY);
|
|
res->ai_addr = (struct sockaddr*) sin;
|
|
res->ai_addrlen = (socklen_t)
|
|
sizeof(struct sockaddr_in);
|
|
break;
|
|
case AF_INET6:
|
|
sin6 = malloc(sizeof(struct sockaddr_in6));
|
|
if (sin6 == NULL)
|
|
out_of_mem();
|
|
sin6->sin6_family = AF_INET6;
|
|
sin6->sin6_port = htons(0);
|
|
sin6->sin6_addr = in6addr_any;
|
|
res->ai_addr = (struct sockaddr*) sin6;
|
|
res->ai_addrlen = (socklen_t)
|
|
sizeof(struct sockaddr_in6);
|
|
break;
|
|
default:
|
|
syslog(LOG_ERR,
|
|
"bad addr fam %d",
|
|
res->ai_family);
|
|
exit(1);
|
|
}
|
|
} else {
|
|
if ((aicode = getaddrinfo(NULL, svcport_str,
|
|
&hints, &res)) != 0) {
|
|
syslog(LOG_ERR,
|
|
"cannot get local address for %s: %s",
|
|
nconf->nc_netid,
|
|
gai_strerror(aicode));
|
|
close(fd);
|
|
continue;
|
|
}
|
|
}
|
|
} else {
|
|
if ((aicode = getaddrinfo(hosts[nhostsbak], svcport_str,
|
|
&hints, &res)) != 0) {
|
|
syslog(LOG_ERR,
|
|
"cannot get local address for %s: %s",
|
|
nconf->nc_netid, gai_strerror(aicode));
|
|
close(fd);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
|
|
/* Store the fd. */
|
|
sock_fd[sock_fdcnt - 1] = fd;
|
|
|
|
/* Now, attempt the bind. */
|
|
r = bindresvport_sa(fd, res->ai_addr);
|
|
if (r != 0) {
|
|
if (errno == EADDRINUSE && mallocd_svcport != 0) {
|
|
if (mallocd_res != 0) {
|
|
free(res->ai_addr);
|
|
free(res);
|
|
} else
|
|
freeaddrinfo(res);
|
|
return (-1);
|
|
}
|
|
syslog(LOG_ERR, "bindresvport_sa: %m");
|
|
exit(1);
|
|
}
|
|
|
|
if (svcport_str == NULL) {
|
|
svcport_str = malloc(NI_MAXSERV * sizeof(char));
|
|
if (svcport_str == NULL)
|
|
out_of_mem();
|
|
mallocd_svcport = 1;
|
|
|
|
if (getnameinfo(res->ai_addr,
|
|
res->ai_addr->sa_len, NULL, NI_MAXHOST,
|
|
svcport_str, NI_MAXSERV * sizeof(char),
|
|
NI_NUMERICHOST | NI_NUMERICSERV))
|
|
errx(1, "Cannot get port number");
|
|
}
|
|
if (mallocd_res != 0) {
|
|
free(res->ai_addr);
|
|
free(res);
|
|
} else
|
|
freeaddrinfo(res);
|
|
res = NULL;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Called after all the create_service() calls have succeeded, to complete
|
|
* the setup and registration.
|
|
*/
|
|
static void
|
|
complete_service(struct netconfig *nconf, char *port_str)
|
|
{
|
|
struct addrinfo hints, *res = NULL;
|
|
struct __rpc_sockinfo si;
|
|
struct netbuf servaddr;
|
|
SVCXPRT *transp = NULL;
|
|
int aicode, fd, nhostsbak;
|
|
int registered = 0;
|
|
|
|
if ((nconf->nc_semantics != NC_TPI_CLTS) &&
|
|
(nconf->nc_semantics != NC_TPI_COTS) &&
|
|
(nconf->nc_semantics != NC_TPI_COTS_ORD))
|
|
return; /* not my type */
|
|
|
|
/*
|
|
* XXX - using RPC library internal functions.
|
|
*/
|
|
if (!__rpc_nconf2sockinfo(nconf, &si)) {
|
|
syslog(LOG_ERR, "cannot get information for %s",
|
|
nconf->nc_netid);
|
|
return;
|
|
}
|
|
|
|
nhostsbak = nhosts;
|
|
while (nhostsbak > 0) {
|
|
--nhostsbak;
|
|
if (sock_fdpos >= sock_fdcnt) {
|
|
/* Should never happen. */
|
|
syslog(LOG_ERR, "Ran out of socket fd's");
|
|
return;
|
|
}
|
|
fd = sock_fd[sock_fdpos++];
|
|
if (fd < 0)
|
|
continue;
|
|
|
|
if (nconf->nc_semantics != NC_TPI_CLTS)
|
|
listen(fd, SOMAXCONN);
|
|
|
|
transp = svc_tli_create(fd, nconf, NULL,
|
|
RPC_MAXDATASIZE, RPC_MAXDATASIZE);
|
|
|
|
if (transp != (SVCXPRT *) NULL) {
|
|
if (!svc_reg(transp, NLM_PROG, NLM_SM, nlm_prog_0,
|
|
NULL))
|
|
syslog(LOG_ERR,
|
|
"can't register %s NLM_PROG, NLM_SM service",
|
|
nconf->nc_netid);
|
|
|
|
if (!svc_reg(transp, NLM_PROG, NLM_VERS, nlm_prog_1,
|
|
NULL))
|
|
syslog(LOG_ERR,
|
|
"can't register %s NLM_PROG, NLM_VERS service",
|
|
nconf->nc_netid);
|
|
|
|
if (!svc_reg(transp, NLM_PROG, NLM_VERSX, nlm_prog_3,
|
|
NULL))
|
|
syslog(LOG_ERR,
|
|
"can't register %s NLM_PROG, NLM_VERSX service",
|
|
nconf->nc_netid);
|
|
|
|
if (!svc_reg(transp, NLM_PROG, NLM_VERS4, nlm_prog_4,
|
|
NULL))
|
|
syslog(LOG_ERR,
|
|
"can't register %s NLM_PROG, NLM_VERS4 service",
|
|
nconf->nc_netid);
|
|
|
|
} else
|
|
syslog(LOG_WARNING, "can't create %s services",
|
|
nconf->nc_netid);
|
|
|
|
if (registered == 0) {
|
|
registered = 1;
|
|
memset(&hints, 0, sizeof hints);
|
|
hints.ai_flags = AI_PASSIVE;
|
|
hints.ai_family = si.si_af;
|
|
hints.ai_socktype = si.si_socktype;
|
|
hints.ai_protocol = si.si_proto;
|
|
|
|
if ((aicode = getaddrinfo(NULL, port_str, &hints,
|
|
&res)) != 0) {
|
|
syslog(LOG_ERR, "cannot get local address: %s",
|
|
gai_strerror(aicode));
|
|
exit(1);
|
|
}
|
|
|
|
servaddr.buf = malloc(res->ai_addrlen);
|
|
memcpy(servaddr.buf, res->ai_addr, res->ai_addrlen);
|
|
servaddr.len = res->ai_addrlen;
|
|
|
|
rpcb_set(NLM_PROG, NLM_SM, nconf, &servaddr);
|
|
rpcb_set(NLM_PROG, NLM_VERS, nconf, &servaddr);
|
|
rpcb_set(NLM_PROG, NLM_VERSX, nconf, &servaddr);
|
|
rpcb_set(NLM_PROG, NLM_VERS4, nconf, &servaddr);
|
|
|
|
xcreated++;
|
|
freeaddrinfo(res);
|
|
}
|
|
} /* end while */
|
|
}
|
|
|
|
/*
|
|
* Clear out sockets after a failure to bind one of them, so that the
|
|
* cycle of socket creation/binding can start anew.
|
|
*/
|
|
static void
|
|
clearout_service(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sock_fdcnt; i++) {
|
|
if (sock_fd[i] >= 0) {
|
|
shutdown(sock_fd[i], SHUT_RDWR);
|
|
close(sock_fd[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Look up addresses for the kernel to create transports for.
|
|
*/
|
|
void
|
|
lookup_addresses(struct netconfig *nconf)
|
|
{
|
|
struct addrinfo hints, *res = NULL;
|
|
struct sockaddr_in *sin;
|
|
struct sockaddr_in6 *sin6;
|
|
struct __rpc_sockinfo si;
|
|
struct netbuf servaddr;
|
|
int aicode;
|
|
int nhostsbak;
|
|
u_int32_t host_addr[4]; /* IPv4 or IPv6 */
|
|
char *uaddr;
|
|
|
|
if ((nconf->nc_semantics != NC_TPI_CLTS) &&
|
|
(nconf->nc_semantics != NC_TPI_COTS) &&
|
|
(nconf->nc_semantics != NC_TPI_COTS_ORD))
|
|
return; /* not my type */
|
|
|
|
/*
|
|
* XXX - using RPC library internal functions.
|
|
*/
|
|
if (!__rpc_nconf2sockinfo(nconf, &si)) {
|
|
syslog(LOG_ERR, "cannot get information for %s",
|
|
nconf->nc_netid);
|
|
return;
|
|
}
|
|
|
|
/* Get rpc.statd's address on this transport */
|
|
memset(&hints, 0, sizeof hints);
|
|
hints.ai_flags = AI_PASSIVE;
|
|
hints.ai_family = si.si_af;
|
|
hints.ai_socktype = si.si_socktype;
|
|
hints.ai_protocol = si.si_proto;
|
|
|
|
/*
|
|
* Bind to specific IPs if asked to
|
|
*/
|
|
nhostsbak = nhosts;
|
|
while (nhostsbak > 0) {
|
|
--nhostsbak;
|
|
|
|
switch (hints.ai_family) {
|
|
case AF_INET:
|
|
if (inet_pton(AF_INET, hosts[nhostsbak],
|
|
host_addr) == 1) {
|
|
hints.ai_flags &= AI_NUMERICHOST;
|
|
} else {
|
|
/*
|
|
* Skip if we have an AF_INET6 address.
|
|
*/
|
|
if (inet_pton(AF_INET6, hosts[nhostsbak],
|
|
host_addr) == 1) {
|
|
continue;
|
|
}
|
|
}
|
|
break;
|
|
case AF_INET6:
|
|
if (inet_pton(AF_INET6, hosts[nhostsbak],
|
|
host_addr) == 1) {
|
|
hints.ai_flags &= AI_NUMERICHOST;
|
|
} else {
|
|
/*
|
|
* Skip if we have an AF_INET address.
|
|
*/
|
|
if (inet_pton(AF_INET, hosts[nhostsbak],
|
|
host_addr) == 1) {
|
|
continue;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* If no hosts were specified, just bind to INADDR_ANY
|
|
*/
|
|
if (strcmp("*", hosts[nhostsbak]) == 0) {
|
|
if (svcport_str == NULL) {
|
|
res = malloc(sizeof(struct addrinfo));
|
|
if (res == NULL)
|
|
out_of_mem();
|
|
res->ai_flags = hints.ai_flags;
|
|
res->ai_family = hints.ai_family;
|
|
res->ai_protocol = hints.ai_protocol;
|
|
switch (res->ai_family) {
|
|
case AF_INET:
|
|
sin = malloc(sizeof(struct sockaddr_in));
|
|
if (sin == NULL)
|
|
out_of_mem();
|
|
sin->sin_family = AF_INET;
|
|
sin->sin_port = htons(0);
|
|
sin->sin_addr.s_addr = htonl(INADDR_ANY);
|
|
res->ai_addr = (struct sockaddr*) sin;
|
|
res->ai_addrlen = (socklen_t)
|
|
sizeof(res->ai_addr);
|
|
break;
|
|
case AF_INET6:
|
|
sin6 = malloc(sizeof(struct sockaddr_in6));
|
|
if (sin6 == NULL)
|
|
out_of_mem();
|
|
sin6->sin6_family = AF_INET6;
|
|
sin6->sin6_port = htons(0);
|
|
sin6->sin6_addr = in6addr_any;
|
|
res->ai_addr = (struct sockaddr*) sin6;
|
|
res->ai_addrlen = (socklen_t) sizeof(res->ai_addr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else {
|
|
if ((aicode = getaddrinfo(NULL, svcport_str,
|
|
&hints, &res)) != 0) {
|
|
syslog(LOG_ERR,
|
|
"cannot get local address for %s: %s",
|
|
nconf->nc_netid,
|
|
gai_strerror(aicode));
|
|
continue;
|
|
}
|
|
}
|
|
} else {
|
|
if ((aicode = getaddrinfo(hosts[nhostsbak], svcport_str,
|
|
&hints, &res)) != 0) {
|
|
syslog(LOG_ERR,
|
|
"cannot get local address for %s: %s",
|
|
nconf->nc_netid, gai_strerror(aicode));
|
|
continue;
|
|
}
|
|
}
|
|
|
|
servaddr.len = servaddr.maxlen = res->ai_addr->sa_len;
|
|
servaddr.buf = res->ai_addr;
|
|
uaddr = taddr2uaddr(nconf, &servaddr);
|
|
|
|
addrs = realloc(addrs, 2 * (naddrs + 1) * sizeof(char *));
|
|
if (!addrs)
|
|
out_of_mem();
|
|
addrs[2 * naddrs] = strdup(nconf->nc_netid);
|
|
addrs[2 * naddrs + 1] = uaddr;
|
|
naddrs++;
|
|
} /* end while */
|
|
}
|
|
|
|
void
|
|
sigalarm_handler(void)
|
|
{
|
|
|
|
grace_expired = 1;
|
|
}
|
|
|
|
void
|
|
usage()
|
|
{
|
|
errx(1, "usage: rpc.lockd [-d <debuglevel>]"
|
|
" [-g <grace period>] [-h <bindip>] [-p <port>]");
|
|
}
|
|
|
|
/*
|
|
* init_nsm --
|
|
* Reset the NSM state-of-the-world and acquire its state.
|
|
*/
|
|
void
|
|
init_nsm(void)
|
|
{
|
|
enum clnt_stat ret;
|
|
my_id id;
|
|
sm_stat stat;
|
|
char name[] = "NFS NLM";
|
|
|
|
/*
|
|
* !!!
|
|
* The my_id structure isn't used by the SM_UNMON_ALL call, as far
|
|
* as I know. Leave it empty for now.
|
|
*/
|
|
memset(&id, 0, sizeof(id));
|
|
id.my_name = name;
|
|
|
|
/*
|
|
* !!!
|
|
* The statd program must already be registered when lockd runs.
|
|
*/
|
|
do {
|
|
ret = callrpc("localhost", SM_PROG, SM_VERS, SM_UNMON_ALL,
|
|
(xdrproc_t)xdr_my_id, &id, (xdrproc_t)xdr_sm_stat, &stat);
|
|
if (ret == RPC_PROGUNAVAIL) {
|
|
syslog(LOG_WARNING, "%lu %s", SM_PROG,
|
|
clnt_sperrno(ret));
|
|
sleep(2);
|
|
continue;
|
|
}
|
|
break;
|
|
} while (0);
|
|
|
|
if (ret != 0) {
|
|
syslog(LOG_ERR, "%lu %s", SM_PROG, clnt_sperrno(ret));
|
|
exit(1);
|
|
}
|
|
|
|
nsm_state = stat.state;
|
|
|
|
/* setup constant data for SM_MON calls */
|
|
mon_host.mon_id.my_id.my_name = localhost;
|
|
mon_host.mon_id.my_id.my_prog = NLM_PROG;
|
|
mon_host.mon_id.my_id.my_vers = NLM_SM;
|
|
mon_host.mon_id.my_id.my_proc = NLM_SM_NOTIFY; /* bsdi addition */
|
|
}
|
|
|
|
/*
|
|
* Out of memory, fatal
|
|
*/
|
|
void out_of_mem()
|
|
{
|
|
syslog(LOG_ERR, "out of memory");
|
|
exit(2);
|
|
}
|