f014b7e69b
endian-ness fix, Router Alert options on IGMP messages, and a new keyword, "advert_metric", for fine-tuning tunnel metrics. This also includes a new mtrace, which is also unreleased but builds significantly on the experiences of users' troubles with using and understanding mtrace in release 3.8 . (unreleased does not, of course, mean untested!) This is a candidate for both 2.2 and 2.1.6 .
758 lines
16 KiB
C
758 lines
16 KiB
C
/*
|
|
* The mrouted program is covered by the license in the accompanying file
|
|
* named "LICENSE". Use of the mrouted program represents acceptance of
|
|
* the terms and conditions listed in that file.
|
|
*
|
|
* The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
|
|
* Leland Stanford Junior University.
|
|
*
|
|
*
|
|
* $Id: main.c,v 3.8.1.3 1996/09/06 18:30:00 fenner Exp $
|
|
*/
|
|
|
|
/*
|
|
* Written by Steve Deering, Stanford University, February 1989.
|
|
*
|
|
* (An earlier version of DVMRP was implemented by David Waitzman of
|
|
* BBN STC by extending Berkeley's routed program. Some of Waitzman's
|
|
* extensions have been incorporated into mrouted, but none of the
|
|
* original routed code has been adopted.)
|
|
*/
|
|
|
|
|
|
#include "defs.h"
|
|
#ifdef __STDC__
|
|
#include <stdarg.h>
|
|
#else
|
|
#include <varargs.h>
|
|
#endif
|
|
#include <fcntl.h>
|
|
|
|
#ifdef SNMP
|
|
#include "snmp.h"
|
|
#endif
|
|
|
|
#ifndef lint
|
|
static char rcsid[] =
|
|
"@(#) $Id: main.c,v 3.8.1.3 1996/09/06 18:30:00 fenner Exp $";
|
|
#endif
|
|
|
|
extern char *configfilename;
|
|
char versionstring[100];
|
|
|
|
static char pidfilename[] = _PATH_MROUTED_PID;
|
|
static char dumpfilename[] = _PATH_MROUTED_DUMP;
|
|
static char cachefilename[] = _PATH_MROUTED_CACHE;
|
|
static char genidfilename[] = _PATH_MROUTED_GENID;
|
|
|
|
int cache_lifetime = DEFAULT_CACHE_LIFETIME;
|
|
int max_prune_lifetime = DEFAULT_CACHE_LIFETIME * 2;
|
|
|
|
int debug = 0;
|
|
u_char pruning = 1; /* Enable pruning by default */
|
|
|
|
#ifdef SNMP
|
|
#define NHANDLERS 34
|
|
#else
|
|
#define NHANDLERS 2
|
|
#endif
|
|
|
|
static struct ihandler {
|
|
int fd; /* File descriptor */
|
|
ihfunc_t func; /* Function to call with &fd_set */
|
|
} ihandlers[NHANDLERS];
|
|
static int nhandlers = 0;
|
|
|
|
/*
|
|
* Forward declarations.
|
|
*/
|
|
static void fasttimer __P((int));
|
|
static void done __P((int));
|
|
static void dump __P((int));
|
|
static void fdump __P((int));
|
|
static void cdump __P((int));
|
|
static void restart __P((int));
|
|
static void timer __P((void));
|
|
static void cleanup __P((void));
|
|
static void resetlogging __P((void *));
|
|
|
|
/* To shut up gcc -Wstrict-prototypes */
|
|
int main __P((int argc, char **argv));
|
|
|
|
int
|
|
register_input_handler(fd, func)
|
|
int fd;
|
|
ihfunc_t func;
|
|
{
|
|
if (nhandlers >= NHANDLERS)
|
|
return -1;
|
|
|
|
ihandlers[nhandlers].fd = fd;
|
|
ihandlers[nhandlers++].func = func;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
register int recvlen;
|
|
register int omask;
|
|
int dummy;
|
|
FILE *fp;
|
|
struct timeval tv;
|
|
u_int32 prev_genid;
|
|
int vers;
|
|
fd_set rfds, readers;
|
|
int nfds, n, i;
|
|
#ifdef SNMP
|
|
struct timeval timeout, *tvp = &timeout;
|
|
struct timeval sched, *svp = &sched, now, *nvp = &now;
|
|
int index, block;
|
|
#endif
|
|
|
|
setlinebuf(stderr);
|
|
|
|
if (geteuid() != 0) {
|
|
fprintf(stderr, "mrouted: must be root\n");
|
|
exit(1);
|
|
}
|
|
|
|
argv++, argc--;
|
|
while (argc > 0 && *argv[0] == '-') {
|
|
if (strcmp(*argv, "-d") == 0) {
|
|
if (argc > 1 && isdigit(*(argv + 1)[0])) {
|
|
argv++, argc--;
|
|
debug = atoi(*argv);
|
|
} else
|
|
debug = DEFAULT_DEBUG;
|
|
} else if (strcmp(*argv, "-c") == 0) {
|
|
if (argc > 1) {
|
|
argv++, argc--;
|
|
configfilename = *argv;
|
|
} else
|
|
goto usage;
|
|
} else if (strcmp(*argv, "-p") == 0) {
|
|
pruning = 0;
|
|
#ifdef SNMP
|
|
} else if (strcmp(*argv, "-P") == 0) {
|
|
if (argc > 1 && isdigit(*(argv + 1)[0])) {
|
|
argv++, argc--;
|
|
dest_port = atoi(*argv);
|
|
} else
|
|
dest_port = DEFAULT_PORT;
|
|
#endif
|
|
} else
|
|
goto usage;
|
|
argv++, argc--;
|
|
}
|
|
|
|
if (argc > 0) {
|
|
usage: fprintf(stderr,
|
|
"usage: mrouted [-p] [-c configfile] [-d [debug_level]]\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (debug == 0) {
|
|
/*
|
|
* Detach from the terminal
|
|
*/
|
|
int t;
|
|
|
|
if (fork()) exit(0);
|
|
(void)close(0);
|
|
(void)close(1);
|
|
(void)close(2);
|
|
(void)open("/", 0);
|
|
(void)dup2(0, 1);
|
|
(void)dup2(0, 2);
|
|
#ifdef SYSV
|
|
(void)setpgrp();
|
|
#else
|
|
#ifdef TIOCNOTTY
|
|
t = open("/dev/tty", 2);
|
|
if (t >= 0) {
|
|
(void)ioctl(t, TIOCNOTTY, (char *)0);
|
|
(void)close(t);
|
|
}
|
|
#else
|
|
if (setsid() < 0)
|
|
perror("setsid");
|
|
#endif
|
|
#endif
|
|
}
|
|
else
|
|
fprintf(stderr, "debug level %u\n", debug);
|
|
|
|
#ifdef LOG_DAEMON
|
|
(void)openlog("mrouted", LOG_PID, LOG_DAEMON);
|
|
(void)setlogmask(LOG_UPTO(LOG_NOTICE));
|
|
#else
|
|
(void)openlog("mrouted", LOG_PID);
|
|
#endif
|
|
sprintf(versionstring, "mrouted version %d.%da",
|
|
PROTOCOL_VERSION, MROUTED_VERSION);
|
|
|
|
log(LOG_NOTICE, 0, "%s", versionstring);
|
|
|
|
#ifdef SYSV
|
|
srand48(time(NULL));
|
|
#else
|
|
srandom(gethostid());
|
|
#endif
|
|
|
|
/*
|
|
* Get generation id
|
|
*/
|
|
gettimeofday(&tv, 0);
|
|
dvmrp_genid = tv.tv_sec;
|
|
|
|
fp = fopen(genidfilename, "r");
|
|
if (fp != NULL) {
|
|
fscanf(fp, "%d", &prev_genid);
|
|
if (prev_genid == dvmrp_genid)
|
|
dvmrp_genid++;
|
|
(void) fclose(fp);
|
|
}
|
|
|
|
fp = fopen(genidfilename, "w");
|
|
if (fp != NULL) {
|
|
fprintf(fp, "%d", dvmrp_genid);
|
|
(void) fclose(fp);
|
|
}
|
|
|
|
callout_init();
|
|
init_igmp();
|
|
init_routes();
|
|
init_ktable();
|
|
k_init_dvmrp(); /* enable DVMRP routing in kernel */
|
|
|
|
#ifndef OLD_KERNEL
|
|
vers = k_get_version();
|
|
/*XXX
|
|
* This function must change whenever the kernel version changes
|
|
*/
|
|
if ((((vers >> 8) & 0xff) != 3) ||
|
|
((vers & 0xff) != 5))
|
|
log(LOG_ERR, 0, "kernel (v%d.%d)/mrouted (v%d.%d) version mismatch",
|
|
(vers >> 8) & 0xff, vers & 0xff,
|
|
PROTOCOL_VERSION, MROUTED_VERSION);
|
|
#endif
|
|
|
|
#ifdef SNMP
|
|
if (i = snmp_init())
|
|
return i;
|
|
|
|
gettimeofday(nvp, 0);
|
|
if (nvp->tv_usec < 500000L){
|
|
svp->tv_usec = nvp->tv_usec + 500000L;
|
|
svp->tv_sec = nvp->tv_sec;
|
|
} else {
|
|
svp->tv_usec = nvp->tv_usec - 500000L;
|
|
svp->tv_sec = nvp->tv_sec + 1;
|
|
}
|
|
#endif /* SNMP */
|
|
|
|
init_vifs();
|
|
|
|
#ifdef RSRR
|
|
rsrr_init();
|
|
#endif /* RSRR */
|
|
|
|
#if defined(__STDC__) || defined(__GNUC__)
|
|
/*
|
|
* Allow cleanup if unexpected exit. Apparently some architectures
|
|
* have a kernel bug where closing the socket doesn't do an
|
|
* ip_mrouter_done(), so we attempt to do it on exit.
|
|
*/
|
|
atexit(cleanup);
|
|
#endif
|
|
|
|
if (debug)
|
|
fprintf(stderr, "pruning %s\n", pruning ? "on" : "off");
|
|
|
|
fp = fopen(pidfilename, "w");
|
|
if (fp != NULL) {
|
|
fprintf(fp, "%d\n", (int)getpid());
|
|
(void) fclose(fp);
|
|
}
|
|
|
|
(void)signal(SIGALRM, fasttimer);
|
|
|
|
(void)signal(SIGHUP, restart);
|
|
(void)signal(SIGTERM, done);
|
|
(void)signal(SIGINT, done);
|
|
(void)signal(SIGUSR1, fdump);
|
|
(void)signal(SIGUSR2, cdump);
|
|
if (debug != 0)
|
|
(void)signal(SIGQUIT, dump);
|
|
|
|
FD_ZERO(&readers);
|
|
FD_SET(igmp_socket, &readers);
|
|
nfds = igmp_socket + 1;
|
|
for (i = 0; i < nhandlers; i++) {
|
|
FD_SET(ihandlers[i].fd, &readers);
|
|
if (ihandlers[i].fd >= nfds)
|
|
nfds = ihandlers[i].fd + 1;
|
|
}
|
|
|
|
/*
|
|
* Install the vifs in the kernel as late as possible in the
|
|
* initialization sequence.
|
|
*/
|
|
init_installvifs();
|
|
|
|
if (debug >= 2) dump(0);
|
|
|
|
/* Start up the log rate-limiter */
|
|
resetlogging(NULL);
|
|
|
|
(void)alarm(1); /* schedule first timer interrupt */
|
|
|
|
/*
|
|
* Main receive loop.
|
|
*/
|
|
dummy = 0;
|
|
for(;;) {
|
|
#ifdef SYSV
|
|
sigset_t block, oblock;
|
|
#endif
|
|
bcopy((char *)&readers, (char *)&rfds, sizeof(rfds));
|
|
#ifdef SNMP
|
|
gettimeofday(nvp, 0);
|
|
if (nvp->tv_sec > svp->tv_sec
|
|
|| (nvp->tv_sec == svp->tv_sec && nvp->tv_usec > svp->tv_usec)){
|
|
alarmTimer(nvp);
|
|
eventTimer(nvp);
|
|
if (nvp->tv_usec < 500000L){
|
|
svp->tv_usec = nvp->tv_usec + 500000L;
|
|
svp->tv_sec = nvp->tv_sec;
|
|
} else {
|
|
svp->tv_usec = nvp->tv_usec - 500000L;
|
|
svp->tv_sec = nvp->tv_sec + 1;
|
|
}
|
|
}
|
|
|
|
tvp = &timeout;
|
|
tvp->tv_sec = 0;
|
|
tvp->tv_usec = 500000L;
|
|
|
|
block = 0;
|
|
snmp_select_info(&nfds, &rfds, tvp, &block);
|
|
if (block == 1)
|
|
tvp = NULL; /* block without timeout */
|
|
if ((n = select(nfds, &rfds, NULL, NULL, tvp)) < 0)
|
|
#else
|
|
if ((n = select(nfds, &rfds, NULL, NULL, NULL)) < 0)
|
|
#endif
|
|
{
|
|
if (errno != EINTR) /* SIGALRM is expected */
|
|
log(LOG_WARNING, errno, "select failed");
|
|
continue;
|
|
}
|
|
|
|
if (FD_ISSET(igmp_socket, &rfds)) {
|
|
recvlen = recvfrom(igmp_socket, recv_buf, RECV_BUF_SIZE,
|
|
0, NULL, &dummy);
|
|
if (recvlen < 0) {
|
|
if (errno != EINTR) log(LOG_ERR, errno, "recvfrom");
|
|
continue;
|
|
}
|
|
#ifdef SYSV
|
|
(void)sigemptyset(&block);
|
|
(void)sigaddset(&block, SIGALRM);
|
|
if (sigprocmask(SIG_BLOCK, &block, &oblock) < 0)
|
|
log(LOG_ERR, errno, "sigprocmask");
|
|
#else
|
|
omask = sigblock(sigmask(SIGALRM));
|
|
#endif
|
|
accept_igmp(recvlen);
|
|
#ifdef SYSV
|
|
(void)sigprocmask(SIG_SETMASK, &oblock, (sigset_t *)NULL);
|
|
#else
|
|
(void)sigsetmask(omask);
|
|
#endif
|
|
}
|
|
|
|
for (i = 0; i < nhandlers; i++) {
|
|
if (FD_ISSET(ihandlers[i].fd, &rfds)) {
|
|
(*ihandlers[i].func)(ihandlers[i].fd, &rfds);
|
|
}
|
|
}
|
|
|
|
#ifdef SNMP
|
|
snmp_read(&rfds);
|
|
snmp_timeout(); /* poll */
|
|
#endif
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* routine invoked every second. Its main goal is to cycle through
|
|
* the routing table and send partial updates to all neighbors at a
|
|
* rate that will cause the entire table to be sent in ROUTE_REPORT_INTERVAL
|
|
* seconds. Also, every TIMER_INTERVAL seconds it calls timer() to
|
|
* do all the other time-based processing.
|
|
*/
|
|
static void
|
|
fasttimer(i)
|
|
int i;
|
|
{
|
|
static unsigned int tlast;
|
|
static unsigned int nsent;
|
|
register unsigned int t = tlast + 1;
|
|
register int n;
|
|
|
|
/*
|
|
* if we're in the last second, send everything that's left.
|
|
* otherwise send at least the fraction we should have sent by now.
|
|
*/
|
|
if (t >= ROUTE_REPORT_INTERVAL) {
|
|
register int nleft = nroutes - nsent;
|
|
while (nleft > 0) {
|
|
if ((n = report_next_chunk()) <= 0)
|
|
break;
|
|
nleft -= n;
|
|
}
|
|
tlast = 0;
|
|
nsent = 0;
|
|
} else {
|
|
register unsigned int ncum = nroutes * t / ROUTE_REPORT_INTERVAL;
|
|
while (nsent < ncum) {
|
|
if ((n = report_next_chunk()) <= 0)
|
|
break;
|
|
nsent += n;
|
|
}
|
|
tlast = t;
|
|
}
|
|
if ((t % TIMER_INTERVAL) == 0)
|
|
timer();
|
|
|
|
age_callout_queue();/* Advance the timer for the callout queue
|
|
for groups */
|
|
alarm(1);
|
|
}
|
|
|
|
/*
|
|
* The 'virtual_time' variable is initialized to a value that will cause the
|
|
* first invocation of timer() to send a probe or route report to all vifs
|
|
* and send group membership queries to all subnets for which this router is
|
|
* querier. This first invocation occurs approximately TIMER_INTERVAL seconds
|
|
* after the router starts up. Note that probes for neighbors and queries
|
|
* for group memberships are also sent at start-up time, as part of initial-
|
|
* ization. This repetition after a short interval is desirable for quickly
|
|
* building up topology and membership information in the presence of possible
|
|
* packet loss.
|
|
*
|
|
* 'virtual_time' advances at a rate that is only a crude approximation of
|
|
* real time, because it does not take into account any time spent processing,
|
|
* and because the timer intervals are sometimes shrunk by a random amount to
|
|
* avoid unwanted synchronization with other routers.
|
|
*/
|
|
|
|
static u_long virtual_time = 0;
|
|
|
|
|
|
/*
|
|
* Timer routine. Performs periodic neighbor probing, route reporting, and
|
|
* group querying duties, and drives various timers in routing entries and
|
|
* virtual interface data structures.
|
|
*/
|
|
static void
|
|
timer()
|
|
{
|
|
age_routes(); /* Advance the timers in the route entries */
|
|
age_vifs(); /* Advance the timers for neighbors */
|
|
age_table_entry(); /* Advance the timers for the cache entries */
|
|
|
|
if (virtual_time % GROUP_QUERY_INTERVAL == 0) {
|
|
/*
|
|
* Time to query the local group memberships on all subnets
|
|
* for which this router is the elected querier.
|
|
*/
|
|
query_groups();
|
|
}
|
|
|
|
if (virtual_time % NEIGHBOR_PROBE_INTERVAL == 0) {
|
|
/*
|
|
* Time to send a probe on all vifs from which no neighbors have
|
|
* been heard. Also, check if any inoperative interfaces have now
|
|
* come up. (If they have, they will also be probed as part of
|
|
* their initialization.)
|
|
*/
|
|
probe_for_neighbors();
|
|
|
|
if (vifs_down)
|
|
check_vif_state();
|
|
}
|
|
|
|
delay_change_reports = FALSE;
|
|
if (routes_changed) {
|
|
/*
|
|
* Some routes have changed since the last timer interrupt, but
|
|
* have not been reported yet. Report the changed routes to all
|
|
* neighbors.
|
|
*/
|
|
report_to_all_neighbors(CHANGED_ROUTES);
|
|
}
|
|
|
|
#ifdef SNMP
|
|
sync_timer();
|
|
#endif
|
|
|
|
/*
|
|
* Advance virtual time
|
|
*/
|
|
virtual_time += TIMER_INTERVAL;
|
|
}
|
|
|
|
|
|
/*
|
|
* On termination, let everyone know we're going away.
|
|
*/
|
|
static void
|
|
done(i)
|
|
int i;
|
|
{
|
|
log(LOG_NOTICE, 0, "%s exiting", versionstring);
|
|
cleanup();
|
|
_exit(1);
|
|
}
|
|
|
|
static void
|
|
cleanup()
|
|
{
|
|
static in_cleanup = 0;
|
|
|
|
if (!in_cleanup) {
|
|
in_cleanup++;
|
|
#ifdef RSRR
|
|
rsrr_clean();
|
|
#endif /* RSRR */
|
|
expire_all_routes();
|
|
report_to_all_neighbors(ALL_ROUTES);
|
|
k_stop_dvmrp();
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Dump internal data structures to stderr.
|
|
*/
|
|
static void
|
|
dump(i)
|
|
int i;
|
|
{
|
|
dump_vifs(stderr);
|
|
dump_routes(stderr);
|
|
}
|
|
|
|
|
|
/*
|
|
* Dump internal data structures to a file.
|
|
*/
|
|
static void
|
|
fdump(i)
|
|
int i;
|
|
{
|
|
FILE *fp;
|
|
|
|
fp = fopen(dumpfilename, "w");
|
|
if (fp != NULL) {
|
|
dump_vifs(fp);
|
|
dump_routes(fp);
|
|
(void) fclose(fp);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Dump local cache contents to a file.
|
|
*/
|
|
static void
|
|
cdump(i)
|
|
int i;
|
|
{
|
|
FILE *fp;
|
|
|
|
fp = fopen(cachefilename, "w");
|
|
if (fp != NULL) {
|
|
dump_cache(fp);
|
|
(void) fclose(fp);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Restart mrouted
|
|
*/
|
|
static void
|
|
restart(i)
|
|
int i;
|
|
{
|
|
register int omask;
|
|
#ifdef SYSV
|
|
sigset_t block, oblock;
|
|
#endif
|
|
|
|
log(LOG_NOTICE, 0, "%s restart", versionstring);
|
|
|
|
/*
|
|
* reset all the entries
|
|
*/
|
|
#ifdef SYSV
|
|
(void)sigemptyset(&block);
|
|
(void)sigaddset(&block, SIGALRM);
|
|
if (sigprocmask(SIG_BLOCK, &block, &oblock) < 0)
|
|
log(LOG_ERR, errno, "sigprocmask");
|
|
#else
|
|
omask = sigblock(sigmask(SIGALRM));
|
|
#endif
|
|
free_all_prunes();
|
|
free_all_routes();
|
|
stop_all_vifs();
|
|
k_stop_dvmrp();
|
|
close(igmp_socket);
|
|
close(udp_socket);
|
|
|
|
/*
|
|
* start processing again
|
|
*/
|
|
dvmrp_genid++;
|
|
pruning = 1;
|
|
|
|
init_igmp();
|
|
init_routes();
|
|
init_ktable();
|
|
init_vifs();
|
|
k_init_dvmrp(); /* enable DVMRP routing in kernel */
|
|
init_installvifs();
|
|
|
|
#ifdef SYSV
|
|
(void)sigprocmask(SIG_SETMASK, &oblock, (sigset_t *)NULL);
|
|
#else
|
|
(void)sigsetmask(omask);
|
|
#endif
|
|
}
|
|
|
|
#define LOG_MAX_MSGS 20 /* if > 20/minute then shut up for a while */
|
|
#define LOG_SHUT_UP 600 /* shut up for 10 minutes */
|
|
static int log_nmsgs = 0;
|
|
|
|
static void
|
|
resetlogging(arg)
|
|
void *arg;
|
|
{
|
|
int nxttime = 60;
|
|
void *narg = NULL;
|
|
|
|
if (arg == NULL && log_nmsgs > LOG_MAX_MSGS) {
|
|
nxttime = LOG_SHUT_UP;
|
|
narg = (void *)&log_nmsgs; /* just need some valid void * */
|
|
syslog(LOG_WARNING, "logging too fast, shutting up for %d minutes",
|
|
LOG_SHUT_UP / 60);
|
|
} else {
|
|
log_nmsgs = 0;
|
|
}
|
|
|
|
timer_setTimer(nxttime, resetlogging, narg);
|
|
}
|
|
|
|
/*
|
|
* Log errors and other messages to the system log daemon and to stderr,
|
|
* according to the severity of the message and the current debug level.
|
|
* For errors of severity LOG_ERR or worse, terminate the program.
|
|
*/
|
|
#ifdef __STDC__
|
|
void
|
|
log(int severity, int syserr, char *format, ...)
|
|
{
|
|
va_list ap;
|
|
static char fmt[211] = "warning - ";
|
|
char *msg;
|
|
char tbuf[20];
|
|
struct timeval now;
|
|
struct tm *thyme;
|
|
|
|
va_start(ap, format);
|
|
#else
|
|
/*VARARGS3*/
|
|
void
|
|
log(severity, syserr, format, va_alist)
|
|
int severity, syserr;
|
|
char *format;
|
|
va_dcl
|
|
{
|
|
va_list ap;
|
|
static char fmt[211] = "warning - ";
|
|
char *msg;
|
|
char tbuf[20];
|
|
struct timeval now;
|
|
struct tm *thyme;
|
|
|
|
va_start(ap);
|
|
#endif
|
|
vsprintf(&fmt[10], format, ap);
|
|
va_end(ap);
|
|
msg = (severity == LOG_WARNING) ? fmt : &fmt[10];
|
|
|
|
switch (debug) {
|
|
case 0: break;
|
|
case 1: if (severity > LOG_NOTICE) break;
|
|
case 2: if (severity > LOG_INFO ) break;
|
|
default:
|
|
gettimeofday(&now,NULL);
|
|
thyme = localtime(&now.tv_sec);
|
|
strftime(tbuf, sizeof(tbuf), "%X.%%03d ", thyme);
|
|
fprintf(stderr, tbuf, now.tv_usec / 1000);
|
|
fprintf(stderr, "%s", msg);
|
|
if (syserr == 0)
|
|
fprintf(stderr, "\n");
|
|
else if (syserr < sys_nerr)
|
|
fprintf(stderr, ": %s\n", sys_errlist[syserr]);
|
|
else
|
|
fprintf(stderr, ": errno %d\n", syserr);
|
|
}
|
|
|
|
if (severity <= LOG_NOTICE) {
|
|
if (log_nmsgs++ < LOG_MAX_MSGS) {
|
|
if (syserr != 0) {
|
|
errno = syserr;
|
|
syslog(severity, "%s: %m", msg);
|
|
} else
|
|
syslog(severity, "%s", msg);
|
|
}
|
|
|
|
if (severity <= LOG_ERR) exit(-1);
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_MFC
|
|
void
|
|
md_log(what, origin, mcastgrp)
|
|
int what;
|
|
u_int32 origin, mcastgrp;
|
|
{
|
|
static FILE *f = NULL;
|
|
struct timeval tv;
|
|
u_int32 buf[4];
|
|
|
|
if (!f) {
|
|
if ((f = fopen("/tmp/mrouted.clog", "w")) == NULL) {
|
|
log(LOG_ERR, errno, "open /tmp/mrouted.clog");
|
|
}
|
|
}
|
|
|
|
gettimeofday(&tv, NULL);
|
|
buf[0] = tv.tv_sec;
|
|
buf[1] = what;
|
|
buf[2] = origin;
|
|
buf[3] = mcastgrp;
|
|
|
|
fwrite(buf, sizeof(u_int32), 4, f);
|
|
}
|
|
#endif
|