// L2TP Network Server
// Adrian Kennard 2002
-// (c) Copyrigth 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd)
+// Copyright (c) 2003, 2004 Optus Internet Engineering
+// Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced
// vim: sw=8 ts=8
+char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.9 2004/06/28 02:43:13 fred_nerk Exp $";
+
#include <arpa/inet.h>
#include <assert.h>
#include <errno.h>
CONFIG("icmp_rate", icmp_rate, INT),
CONFIG("cluster_address", cluster_address, IP),
CONFIG("cluster_interface", cluster_interface, STRING),
+ CONFIG("cluster_hb_interval", cluster_hb_interval, INT),
+ CONFIG("cluster_hb_timeout", cluster_hb_timeout, INT),
#ifdef BGP
CONFIG("as_number", as_number, SHORT),
CONFIG("bgp_peer1", bgp_peer[0], STRING),
if (!mask) mask = 0xffffffff;
- ip = ip & mask; // Force the ip to be the first one in the route.
+ ip &= mask; // Force the ip to be the first one in the route.
memset(&r, 0, sizeof(r));
r.rt_dev = config->tapdevice;
r.rt_flags |= RTF_GATEWAY;
else if (mask == 0xffffffff)
r.rt_flags |= RTF_HOST;
- if (ioctl(ifrfd, add ? SIOCADDRT : SIOCDELRT, (void *) &r) < 0)
- log(0, 0, 0, 0, "routeset() error in ioctl: %s\n", strerror(errno));
log(1, ip, 0, 0, "Route %s %u.%u.%u.%u/%u.%u.%u.%u %u.%u.%u.%u\n",
add ? "add" : "del",
mask >> 24, mask >> 16 & 0xff, mask >> 8 & 0xff, mask & 0xff,
gw >> 24, gw >> 16 & 0xff, gw >> 8 & 0xff, gw & 0xff);
+ if (ioctl(ifrfd, add ? SIOCADDRT : SIOCDELRT, (void *) &r) < 0)
+ log(0, 0, 0, 0, "routeset() error in ioctl: %s\n", strerror(errno));
+
#ifdef BGP
if (add)
bgp_add_route(htonl(ip), htonl(mask));
sessionidt sessionbyip(ipt ip)
{
int s = lookup_ipmap(ip);
+ CSTAT(call_sessionbyip);
-#ifdef STAT_CALLS
- STAT(call_sessionbyip);
-#endif
if (s > 0 && s < MAXSESSION && session[s].tunnel)
return s;
return 0;
int i, j, k, l;
int count = 0;
+ if (CLI_HELP_REQUESTED)
+ return CLI_HELP_NO_ARGS;
+
cli_print(cli, "%7s %s", "Sess#", "IP Address");
for (i = 0; i < 256; ++i) {
sessionidt sessionbyuser(char *username)
{
int s;
-#ifdef STAT_CALLS
- STAT(call_sessionbyuser);
-#endif
+ CSTAT(call_sessionbyuser);
+
for (s = 1; s < MAXSESSION ; ++s) {
if (session[s].walled_garden)
continue; // Skip walled garden users.
ipt ip;
sessionidt s;
-#ifdef STAT_CALLS
- STAT(call_processarp);
-#endif
+ CSTAT(call_processarp);
STAT(arp_recv);
+
if (len != 46)
{
log(0, 0, 0, 0, "Unexpected length ARP %d bytes\n", len);
{
struct sockaddr_in addr;
-#ifdef STAT_CALLS
- STAT(call_tunnelsend);
-#endif
+ CSTAT(call_tunnelsend);
+
if (!t)
{
static int backtrace_count = 0;
int size = len;
u8 b[MAXETHER + 20];
-#ifdef STAT_CALLS
- STAT(call_processipout);
-#endif
+
+ CSTAT(call_processipout);
+
if (len < MIN_IP_SIZE)
{
log(1, 0, 0, 0, "Short IP, %d bytes\n", len);
t = session[s].tunnel;
sp = &session[s];
- log(5, session[s].ip, s, t, "Ethernet -> Tunnel (%d bytes)\n", len);
-
- // Snooping this session, send it to ASIO
+ // Snooping this session, send it to intercept box
if (sp->snoop_ip && sp->snoop_port)
snoop_send_packet(buf, len, sp->snoop_ip, sp->snoop_port);
+ log(5, session[s].ip, s, t, "Ethernet -> Tunnel (%d bytes)\n", len);
+
// Add on L2TP header
{
u8 *p = makeppp(b, sizeof(b), buf, len, t, s, PPPIP);
int dead = session[s].die;
int walled_garden = session[s].walled_garden;
-#ifdef STAT_CALLS
- STAT(call_sessionshutdown);
-#endif
+
+ CSTAT(call_sessionshutdown);
+
if (!session[s].tunnel)
{
log(3, session[s].ip, s, session[s].tunnel, "Called sessionshutdown on a session with no tunnel.\n");
u8 buf[MAXCONTROL];
u16 r = session[s].radius;
u8 *q;
-#ifdef STAT_CALLS
- STAT(call_sendipcp);
-#endif
+
+ CSTAT(call_sendipcp);
+
if (!r)
r = radiusnew(s);
if (radius[r].state != RADIUSIPCP)
// kill a session now
void sessionkill(sessionidt s, char *reason)
{
-#ifdef STAT_CALLS
- STAT(call_sessionkill);
-#endif
+
+ CSTAT(call_sessionkill);
+
sessionshutdown(s, reason); // close radius/routes, etc.
if (session[s].radius)
radiusclear(session[s].radius, 0); // cant send clean accounting data, session is killed
{
sessionidt s;
controlt *c;
-#ifdef STAT_CALLS
- STAT(call_tunnelkill);
-#endif
+
+ CSTAT(call_tunnelkill);
tunnel[t].state = TUNNELDIE;
void tunnelshutdown(tunnelidt t, char *reason)
{
sessionidt s;
-#ifdef STAT_CALLS
- STAT(call_tunnelshutdown);
-#endif
+
+ CSTAT(call_tunnelshutdown);
+
if (!tunnel[t].last || !tunnel[t].far || tunnel[t].state == TUNNELFREE)
{
// never set up, can immediately kill
u16 l = len, t = 0, s = 0, ns = 0, nr = 0;
u8 *p = buf + 2;
-#ifdef STAT_CALLS
- STAT(call_processudp);
-#endif
+
+ CSTAT(call_processudp);
+
udp_rx += len;
udp_rx_pkt++;
log_hex(5, "UDP Data", buf, len);
log_hex(5, "Receive TAP Data", buf, len);
STAT(tap_rx_packets);
INC_STAT(tap_rx_bytes, len);
-#ifdef STAT_CALLS
- STAT(call_processtap);
-#endif
+
+ CSTAT(call_processtap);
+
eth_rx_pkt++;
eth_rx += len;
if (len < 22)
continue;
if (radius[r].retry)
{
- if (radius[r].retry <= config->current_time)
+ if (radius[r].retry <= TIME)
radiusretry(r);
} else
radius[r].retry = backoff(radius[r].try+1); // Is this really needed? --mo
for (t = 1; t < config->cluster_highest_tunnelid; t++)
{
// check for expired tunnels
- if (tunnel[t].die && tunnel[t].die <= config->current_time)
+ if (tunnel[t].die && tunnel[t].die <= TIME)
{
STAT(tunnel_timeout);
tunnelkill(t, "Expired");
if (tunnel[t].retry && tunnel[t].controlc)
{
// resend pending messages as timeout on reply
- if (tunnel[t].retry <= config->current_time)
+ if (tunnel[t].retry <= TIME)
{
controlt *c = tunnel[t].controls;
u8 w = tunnel[t].window;
}
}
// Send hello
- if (tunnel[t].state == TUNNELOPEN && tunnel[t].lastrec < config->current_time + 600)
+ if (tunnel[t].state == TUNNELOPEN && tunnel[t].lastrec < TIME + 600)
{
controlt *c = controlnew(6); // sending HELLO
controladd(c, t, 0); // send the message
}
count = 0;
- for (i = 1; i < config->cluster_highest_sessionid; i++)
+ for (i = 1; i <= config->cluster_highest_sessionid; i++)
{
s++;
- if (s >= config->cluster_highest_sessionid)
+ if (s > config->cluster_highest_sessionid)
s = 1;
if (!session[s].tunnel) // Session isn't in use
}
// check for expired sessions
- if (session[s].die && session[s].die <= config->current_time)
+ if (session[s].die && session[s].die <= TIME)
{
sessionkill(s, "Expired");
if (++count >= MAX_ACTIONS) break;
continue;
}
}
- if (config->accounting_dir && next_acct <= config->current_time)
+ if (config->accounting_dir && next_acct <= TIME)
{
// Dump accounting data
- next_acct = config->current_time + ACCT_TIME;
+ next_acct = TIME + ACCT_TIME;
dump_acct_info();
}
if (!tunnel[i].controlc)
continue;
- if (last_talked != config->current_time) {
- log(2,0,0,0, "Tunnel %d still has an-acked control messages.\n", i);
- last_talked = config->current_time;
+ if (last_talked != TIME) {
+ log(2,0,0,0, "Tunnel %d still has un-acked control messages.\n", i);
+ last_talked = TIME;
}
return 1;
}
if (radius[i].state == RADIUSWAIT)
continue;
- if (last_talked != config->current_time) {
+ if (last_talked != TIME) {
log(2,0,0,0, "Radius session %d is still busy (sid %d)\n", i, radius[i].session);
- last_talked = config->current_time;
+ last_talked = TIME;
}
return 1;
}
n = select(n + 1, &r, 0, 0, &to);
#endif /* BGP */
- config->current_time = now();
+ TIME = now();
if (n < 0)
{
if (errno == EINTR)
// Runs on all machines both master and slave.
{
static clockt last_run = 0;
- if (last_run != config->current_time) {
- last_run = config->current_time;
+ if (last_run != TIME) {
+ last_run = TIME;
tbf_run_timer();
}
}
char *u = session[s].user;
char reuse = 0;
-#ifdef STAT_CALLS
- STAT(call_assign_ip_address);
-#endif
+
+ CSTAT(call_assign_ip_address);
+
for (i = 1; i < ip_pool_size; i++)
{
if (!ip_address_pool[i].address || ip_address_pool[i].assigned)
ip_address_pool[i].session = 0;
ip_address_pool[i].last = time_now;
-#ifdef STAT_CALLS
- STAT(call_free_ip_address);
-#endif
+
+ CSTAT(call_free_ip_address);
+
}
//
if (ipid < 1) // Not found in the pool either? good.
continue;
- log(0, 0, i, 0, "Session %d has an IP address (%s) that was marked static, but is in the pool (%d)!",
+ log(0, 0, i, 0, "Session %d has an IP address (%s) that was marked static, but is in the pool (%d)!\n",
i, inet_toa(session[i].ip), ipid);
// Fall through and process it as part of the pool.
src = inet_addr(buf);
if (src == INADDR_NONE)
{
- log(0, 0, 0, 0, "Invalid address pool IP %s", buf);
+ log(0, 0, 0, 0, "Invalid address pool IP %s\n", buf);
exit(1);
}
// This entry is for a specific IP only
int i;
FILE *f = NULL;
-#ifdef STAT_CALLS
- STAT(call_dump_acct_info);
-#endif
+
+ CSTAT(call_dump_acct_info);
+
strftime(timestr, 64, "%Y%m%d%H%M%S", localtime(&t));
snprintf(filename, 1024, "%s/%s", config->accounting_dir, timestr);
init_cli();
read_config_file();
- log(0, 0, 0, 0, "$Id: l2tpns.c,v 1.8 2004/06/23 03:52:24 fred_nerk Exp $\n"
- "(c) Copyright 2003, 2004 Optus Internet Engineering\n"
- "(c) Copyright 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced\n");
+ log(0, 0, 0, 0, "L2TPNS version " VERSION "\n");
+ log(0, 0, 0, 0, "Copyright (c) 2003, 2004 Optus Internet Engineering\n");
+ log(0, 0, 0, 0, "Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced\n");
{
struct rlimit rlim;
rlim.rlim_cur = RLIM_INFINITY;
}
memcpy(config->old_plugins, config->plugins, sizeof(config->plugins));
if (!config->cleanup_interval) config->cleanup_interval = 10;
- if (!config->multi_read_count) config->multi_read_count = 1;
+ if (!config->multi_read_count) config->multi_read_count = 10;
if (!config->cluster_address) config->cluster_address = inet_addr(DEFAULT_MCAST_ADDR);
if (!*config->cluster_interface)
strncpy(config->cluster_interface, DEFAULT_MCAST_INTERFACE, sizeof(config->cluster_interface) - 1);
+ if (!config->cluster_hb_interval)
+ config->cluster_hb_interval = PING_INTERVAL; // Heartbeat every 0.5 seconds.
+
+ if (!config->cluster_hb_timeout)
+ config->cluster_hb_timeout = HB_TIMEOUT; // 10 missed heartbeat triggers an election.
+
config->reload_config = 0;
}
char *user;
sessionidt i;
int r;
-#ifdef STAT_CALLS
- STAT(call_sessionsetup);
-#endif
+
+ CSTAT(call_sessionsetup);
+
log(3, session[s].ip, s, t, "Doing session setup for session\n");
{
if (session[s].ip) // If there's an old one, remove it.
{
+ // Remove any routes if the IP has changed
+ for (i = 0; i < MAXROUTE && session[s].route[i].ip; i++)
+ {
+ routeset(s, session[s].route[i].ip, session[s].route[i].mask, session[s].ip, 0);
+ session[s].route[i].ip = 0;
+ }
+
if (session[s].ip_pool_index == -1) // static IP
routeset(s, session[s].ip, 0, 0, 0);
- else // It's part of the IP pool, add it manually.
+ else // It's part of the IP pool, remove it manually.
uncache_ipmap(session[s].ip);
}
}
}
- // Add routes for the session if they're new.
+ // Update routed networks
for (i = 0; i < MAXROUTE && (session[s].route[i].ip || new->route[i].ip); i++)
{
if (new->route[i].ip == session[s].route[i].ip &&
continue;
if (session[s].route[i].ip) // Remove the old one if it exists.
- routeset(s, session[s].route[i].ip, session[s].route[i].mask, session[s].route[i].ip, 0);
+ routeset(s, session[s].route[i].ip, session[s].route[i].mask, session[s].ip, 0);
if (new->route[i].ip) // Add the new one if it exists.
routeset(s, new->route[i].ip, new->route[i].mask, new->ip, 1);
int l;
struct param_control param = { buf, len, ntohl(addr->sin_addr.s_addr), ntohs(addr->sin_port), NULL, 0, 0 };
+
+ if (log_stream && config->debug >= 4)
+ {
log(4, ntohl(addr->sin_addr.s_addr), 0, 0, "Received ");
- if (log_stream)
dump_packet(buf, log_stream);
+ }
resp = calloc(1400, 1);
l = new_packet(PKT_RESP_ERROR, resp);
int count = 0;
int buckets[64];
+ if (CLI_HELP_REQUESTED)
+ return CLI_HELP_NO_ARGS;
+
time(&time_now);
for (i = 0; i < 64;++i) buckets[i] = 0;
int count = 0;
int buckets[64];
+ if (CLI_HELP_REQUESTED)
+ return CLI_HELP_NO_ARGS;
+
time(&time_now);
for (i = 0; i < 64;++i) buckets[i] = 0;
projects / l2tpns.git / blobdiff