void print_rt_table()
{
char rt_buf[512], ifname[64];
int len = 0;
int i = 0;
rt_table_t *entry;
precursor_t *pr;
struct timeval now;
struct tm *time;
gettimeofday(&now, NULL);
time = localtime(&now.tv_sec);
len +=
sprintf(rt_buf, "# Time: %02d:%02d:%02d.%03ld IP: %s seqno: %u\n",
time->tm_hour, time->tm_min, time->tm_sec,
now.tv_usec / 1000, devs_ip_to_str(),
this_host.seqno);
len +=
sprintf(rt_buf + len,
"%-15s %-15s %-3s %-3s %-5s %-6s %-5s %-5s %-15s\n",
"Destination", "Next hop", "HC", "LHC", "Seqno", "Expire",
"Flags", "Iface", "Precursors");
write(log_rt_fd, rt_buf, len);
len = 0;
for (i = 0; i < RT_TABLESIZE; i++) {
entry = routing_table[i];
while (entry != NULL) {
/* Printe routing table entries one by one... */
if (entry->precursors == NULL)
len +=
sprintf(rt_buf + len,
"%-15s %-15s %-3d %-3d %-5u %-6ld %-5s %-5s\n",
ip_to_str(entry->dest_addr),
ip_to_str(entry->next_hop), entry->hcnt,
entry->last_hcnt, entry->dest_seqno,
((entry->hcnt ==
255) ? 0 : timeval_diff(&entry->rt_timer.
timeout,
&now)) / 1000,
rt_flags_to_str(entry->flags),
if_indextoname(entry->ifindex, ifname));
else {
len +=
sprintf(rt_buf + len,
"%-15s %-15s %-3d %-3d %-5u %-6ld %-5s %-5s %-15s\n",
ip_to_str(entry->dest_addr),
ip_to_str(entry->next_hop), entry->hcnt,
entry->last_hcnt, entry->dest_seqno,
timeval_diff(&entry->rt_timer.timeout,
&now) / 1000,
rt_flags_to_str(entry->flags),
if_indextoname(entry->ifindex, ifname),
ip_to_str(entry->precursors->neighbor));
/* Print all precursors for the current routing entry */
for (pr = entry->precursors->next; (pr != NULL);
pr = pr->next)
len +=
sprintf(rt_buf + len, "%65s %-15s\n", "*",
ip_to_str(pr->neighbor));
}
write(log_rt_fd, rt_buf, len);
len = 0;
entry = entry->next;
}
}
/* Schedule a new printing of routing table... */
timer_add_msec(&rt_timer, rt_log_interval);
}
void NS_CLASS print_rt_table(void *arg)
{
char rt_buf[2048], ifname[64], seqno_str[11];
int len = 0;
int i = 0;
rt_table_t *entry;
precursor_t *pr;
struct timeval now;
struct tm *time;
if (rt_tbl.num_entries == 0)
goto schedule;
gettimeofday(&now, NULL);
#ifdef NS_PORT
time = gmtime(&now.tv_sec);
#else
time = localtime(&now.tv_sec);
#endif
len +=
sprintf(rt_buf,
"# Time: %02d:%02d:%02d.%03ld IP: %s seqno: %u entries/active: %u/%u\n",
time->tm_hour, time->tm_min, time->tm_sec, now.tv_usec / 1000,
devs_ip_to_str(), this_host.seqno, rt_tbl.num_entries,
rt_tbl.num_active);
len +=
sprintf(rt_buf + len,
"%-15s %-15s %-3s %-3s %-5s %-6s %-5s %-5s %-15s\n",
"Destination", "Next hop", "HC", "St.", "Seqno", "Expire",
"Flags", "Iface", "Precursors");
write(log_rt_fd, rt_buf, len);
len = 0;
for (i = 0; i < RT_TABLESIZE; i++) {
entry = rt_tbl.tbl[i];
while (entry != NULL) {
if (entry->flags & RT_INV_SEQNO)
sprintf(seqno_str, "-");
else
sprintf(seqno_str, "%u", entry->dest_seqno);
/* Print routing table entries one by one... */
if (entry->precursors == NULL)
len += sprintf(rt_buf + len,
"%-15s %-15s %-3d %-3s %-5s %-6lu %-5s %-5s\n",
ip_to_str(entry->dest_addr),
ip_to_str(entry->next_hop), entry->hcnt,
state_to_str(entry->state), seqno_str,
(entry->hcnt == 255) ? 0 :
timeval_diff(&entry->rt_timer.timeout, &now),
rt_flags_to_str(entry->flags),
if_indextoname(entry->ifindex, ifname));
else {
len += sprintf(rt_buf + len,
"%-15s %-15s %-3d %-3s %-5s %-6lu %-5s %-5s %-15s\n",
ip_to_str(entry->dest_addr),
ip_to_str(entry->next_hop), entry->hcnt,
state_to_str(entry->state), seqno_str,
(entry->hcnt == 255) ? 0 :
timeval_diff(&entry->rt_timer.timeout, &now),
rt_flags_to_str(entry->flags),
if_indextoname(entry->ifindex, ifname),
ip_to_str(entry->precursors->neighbor));
/* Print all precursors for the current routing entry */
for (pr = entry->precursors->next; pr != NULL; pr = pr->next) {
len += sprintf(rt_buf + len, "%64s %-15s\n", "*",
ip_to_str(pr->neighbor));
/* Since the precursor list is grown dynamically
* the write buffer should be flushed for every
* entry to avoid buffer overflows */
write(log_rt_fd, rt_buf, len);
len = 0;
}
}
if (len > 0) {
write(log_rt_fd, rt_buf, len);
len = 0;
}
entry = entry->next;
}
}
/* Schedule a new printing of routing table... */
schedule:
timer_set_timeout(&rt_log_timer, rt_log_interval);
}
