X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/4e0597cd50268bc57fa118f1362360a2db2ec23a..8192b613536019798d71a3507eddd59744cfbe57:/l2tpns.c diff --git a/l2tpns.c b/l2tpns.c index 0ac9d03..cf7ef18 100644 --- a/l2tpns.c +++ b/l2tpns.c @@ -4,7 +4,7 @@ // 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 1.44 2004-11-05 04:55:27 bodea Exp $"; +char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.48 2004-11-11 03:07:42 bodea Exp $"; #include #include @@ -49,6 +49,10 @@ char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.44 2004-11-05 04:55:27 bodea Exp #include "util.h" #include "tbf.h" +#ifdef BGP +#include "bgp.h" +#endif /* BGP */ + // Globals struct configt *config = NULL; // all configuration int tunfd = -1; // tun interface file handle. (network device) @@ -82,13 +86,6 @@ char *_program_name = NULL; linked_list *loaded_plugins; linked_list *plugins[MAX_PLUGIN_TYPES]; -#ifdef BGP -#include "bgp.h" -struct bgp_peer *bgp_peers = 0; -struct bgp_route_list *bgp_routes = 0; -int bgp_configured = 0; -#endif /* BGP */ - #define membersize(STRUCT, MEMBER) sizeof(((STRUCT *)0)->MEMBER) #define CONFIG(NAME, MEMBER, TYPE) { NAME, offsetof(struct configt, MEMBER), membersize(struct configt, MEMBER), TYPE } @@ -123,13 +120,6 @@ struct config_descriptt config_values[] = { 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), - CONFIG("bgp_peer1_as", bgp_peer_as[0], SHORT), - CONFIG("bgp_peer2", bgp_peer[1], STRING), - CONFIG("bgp_peer2_as", bgp_peer_as[1], SHORT), -#endif /* BGP */ { NULL, 0, 0, 0 }, }; @@ -787,10 +777,6 @@ void processipout(u8 * buf, int len) return; } - // 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 @@ -804,6 +790,10 @@ void processipout(u8 * buf, int len) tunnelsend(b, len + (p-b), t); // send it... } + // 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); + sp->cout += len; // byte count sp->total_cout += len; // byte count sp->pout++; @@ -837,15 +827,12 @@ void send_ipout(sessionidt s, u8 *buf, int len) if (!session[s].ip) return; + t = session[s].tunnel; sp = &session[s]; LOG(5, session[s].ip, s, t, "Ethernet -> Tunnel (%d bytes)\n", len); - // Snooping this session. - if (sp->snoop_ip && sp->snoop_port) - snoop_send_packet(buf, len, sp->snoop_ip, sp->snoop_port); - // Add on L2TP header { u8 *p = makeppp(b, sizeof(b), buf, len, t, s, PPPIP); @@ -856,6 +843,11 @@ void send_ipout(sessionidt s, u8 *buf, int len) } tunnelsend(b, len + (p-b), t); // send it... } + + // Snooping this session. + if (sp->snoop_ip && sp->snoop_port) + snoop_send_packet(buf, len, sp->snoop_ip, sp->snoop_port); + sp->cout += len; // byte count sp->total_cout += len; // byte count sp->pout++; @@ -2583,22 +2575,14 @@ void initdata(int optdebug, char *optconfig) _statistics->start_time = _statistics->last_reset = time(NULL); #ifdef BGP - if (!(bgp_peers = shared_malloc(sizeof(struct bgp_peer) * BGP_NUM_PEERS))) - { - LOG(0, 0, 0, 0, "Error doing malloc for bgp: %s\n", strerror(errno)); - exit(1); - } + if (!(bgp_peers = shared_malloc(sizeof(struct bgp_peer) * BGP_NUM_PEERS))) + { + LOG(0, 0, 0, 0, "Error doing malloc for bgp: %s\n", strerror(errno)); + exit(1); + } #endif /* BGP */ } -void initiptables(void) -{ - /* Flush the tables here so that we have a clean slate */ - -// Not needed. 'nat' is setup by garden.c -// mangle isn't used (as throttling is done by tbf inhouse). -} - int assign_ip_address(sessionidt s) { u32 i; @@ -2933,7 +2917,7 @@ void dump_acct_info() // Main program int main(int argc, char *argv[]) { - int o; + int i; int optdebug = 0; char *optconfig = CONFIGFILE; @@ -2942,14 +2926,16 @@ int main(int argc, char *argv[]) time(&basetime); // start clock // scan args - while ((o = getopt(argc, argv, "dvc:h:")) >= 0) + while ((i = getopt(argc, argv, "dvc:h:")) >= 0) { - switch (o) + switch (i) { case 'd': - // Double fork to detach from terminal - if (fork()) exit(0); if (fork()) exit(0); + setsid(); + freopen("/dev/null", "r", stdin); + freopen("/dev/null", "w", stdout); + freopen("/dev/null", "w", stderr); break; case 'v': optdebug++; @@ -2979,7 +2965,6 @@ int main(int argc, char *argv[]) signal(SIGALRM, sigalrm_handler); siginterrupt(SIGALRM, 0); - initiptables(); initplugins(); initdata(optdebug, optconfig); @@ -3034,13 +3019,13 @@ int main(int argc, char *argv[]) signal(SIGPIPE, SIG_IGN); bgp_setup(config->as_number); bgp_add_route(config->bind_address, 0xffffffff); - if (*config->bgp_peer[0]) - bgp_start(&bgp_peers[0], config->bgp_peer[0], - config->bgp_peer_as[0], 0); /* 0 = routing disabled */ - - if (*config->bgp_peer[1]) - bgp_start(&bgp_peers[1], config->bgp_peer[1], - config->bgp_peer_as[1], 0); + for (i = 0; i < BGP_NUM_PEERS; i++) + { + if (config->neighbour[i].name[0]) + bgp_start(&bgp_peers[i], config->neighbour[i].name, + config->neighbour[i].as, config->neighbour[i].keepalive, + config->neighbour[i].hold, 0); /* 0 = routing disabled */ + } #endif /* BGP */ inittun(); @@ -3078,12 +3063,9 @@ int main(int argc, char *argv[]) #ifdef BGP /* try to shut BGP down cleanly; with luck the sockets will be writable since we're out of the select */ - { - int i; - for (i = 0; i < BGP_NUM_PEERS; i++) - if (bgp_peers[i].state == Established) - bgp_stop(&bgp_peers[i]); - } + for (i = 0; i < BGP_NUM_PEERS; i++) + if (bgp_peers[i].state == Established) + bgp_stop(&bgp_peers[i]); #endif /* BGP */ /* remove plugins (so cleanup code gets run) */ @@ -3465,6 +3447,7 @@ void update_config() { if (strcmp(config->plugins[i], config->old_plugins[i]) == 0) continue; + if (*config->plugins[i]) { // Plugin added @@ -3757,6 +3740,29 @@ static void *open_plugin(char *plugin_name, int load) return dlopen(path, RTLD_NOW); } +// plugin callback to get a config value +static void *getconfig(char *key, enum config_typet type) +{ + int i; + + for (i = 0; config_values[i].key; i++) + { + if (!strcmp(config_values[i].key, key)) + { + if (config_values[i].type == type) + return ((void *) config) + config_values[i].offset; + + LOG(1, 0, 0, 0, "plugin requested config item \"%s\" expecting type %d, have type %d\n", + key, type, config_values[i].type); + + return 0; + } + } + + LOG(1, 0, 0, 0, "plugin requested unknown config item \"%s\"\n", key); + return 0; +} + void add_plugin(char *plugin_name) { static struct pluginfuncs funcs = { @@ -3769,6 +3775,7 @@ void add_plugin(char *plugin_name) sessionkill, radiusnew, radiussend, + getconfig, }; void *p = open_plugin(plugin_name, 1); @@ -3915,27 +3922,6 @@ void processcontrol(u8 * buf, int len, struct sockaddr_in *addr) free(resp); } -/* - * HACK - * Go through all of the tunnels and do some cleanups - */ -void tunnel_clean() -{ - int i; - - LOG(1, 0, 0, 0, "Cleaning tunnels array\n"); - - for (i = 1; i < MAXTUNNEL; i++) - { - if (!tunnel[i].ip - || !*tunnel[i].hostname - || (tunnel[i].state == TUNNELDIE && tunnel[i].die >= time_now)) - { - tunnelclear(i); - } - } -} - void tunnelclear(tunnelidt t) { if (!t) return;