X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/26a2025a1b7f12e9d962294583d76da30fb668d9..b3f40f41f7de7a383c6f1170e546d0b09cc57338:/l2tpns.c diff --git a/l2tpns.c b/l2tpns.c index fcd054d..07a45f7 100644 --- a/l2tpns.c +++ b/l2tpns.c @@ -10,6 +10,7 @@ #include #include #define SYSLOG_NAMES +#include #include #include #include @@ -19,7 +20,6 @@ #include #include #include -#include #include #include #include @@ -40,6 +40,7 @@ #include #include "md5.h" +#include "dhcp6.h" #include "l2tpns.h" #include "cluster.h" #include "plugin.h" @@ -55,6 +56,7 @@ #include "l2tplac.h" #include "pppoe.h" +#include "dhcp6.h" char * Vendor_name = "Linux L2TPNS"; uint32_t call_serial_number = 0; @@ -188,6 +190,13 @@ config_descriptt config_values[] = { CONFIG("bind_multi_address", bind_multi_address, STRING), CONFIG("pppoe_only_equal_svc_name", pppoe_only_equal_svc_name, BOOL), CONFIG("multi_hostname", multi_hostname, STRING), + CONFIG("no_throttle_local_IP", no_throttle_local_IP, BOOL), + CONFIG("dhcp6_preferred_lifetime", dhcp6_preferred_lifetime, INT), + CONFIG("dhcp6_valid_lifetime", dhcp6_valid_lifetime, INT), + CONFIG("dhcp6_server_duid", dhcp6_server_duid, INT), + CONFIG("primary_ipv6_dns", default_ipv6_dns1, IPv6), + CONFIG("secondary_ipv6_dns", default_ipv6_dns2, IPv6), + CONFIG("default_ipv6_domain_list", default_ipv6_domain_list, STRING), { NULL, 0, 0, 0 } }; @@ -1417,7 +1426,7 @@ void processipout(uint8_t *buf, int len) sessionidt s; sessiont *sp; tunnelidt t; - in_addr_t ip; + in_addr_t ip, ip_src; uint8_t *data = buf; // Keep a copy of the originals. int size = len; @@ -1450,6 +1459,7 @@ void processipout(uint8_t *buf, int len) return; } + ip_src = *(uint32_t *)(buf + 12); ip = *(uint32_t *)(buf + 16); if (!(s = sessionbyip(ip))) { @@ -1534,12 +1544,15 @@ void processipout(uint8_t *buf, int len) if (sp->tbf_out) { - // Are we throttling this session? - if (config->cluster_iam_master) - tbf_queue_packet(sp->tbf_out, data, size); - else - master_throttle_packet(sp->tbf_out, data, size); - return; + if (!config->no_throttle_local_IP || !sessionbyip(ip_src)) + { + // Are we throttling this session? + if (config->cluster_iam_master) + tbf_queue_packet(sp->tbf_out, data, size); + else + master_throttle_packet(sp->tbf_out, data, size); + return; + } } if (sp->walled_garden && !config->cluster_iam_master) @@ -1801,6 +1814,8 @@ static void send_ipout(sessionidt s, uint8_t *buf, int len) { sessiont *sp; tunnelidt t; + uint8_t *p; + uint8_t *data = buf; // Keep a copy of the originals. uint8_t b[MAXETHER + 20]; @@ -1823,11 +1838,14 @@ static void send_ipout(sessionidt s, uint8_t *buf, int len) LOG(5, s, t, "Ethernet -> Tunnel (%d bytes)\n", len); // Add on L2TP header - { - uint8_t *p = makeppp(b, sizeof(b), buf, len, s, t, PPPIP, 0, 0, 0); - if (!p) return; - tunnelsend(b, len + (p-b), t); // send it... - } + if (*(uint16_t *) (data + 2) == htons(PKTIPV6)) + p = makeppp(b, sizeof(b), buf, len, s, t, PPPIPV6, 0, 0, 0); // IPV6 + else + p = makeppp(b, sizeof(b), buf, len, s, t, PPPIP, 0, 0, 0); // IPV4 + + if (!p) return; + + tunnelsend(b, len + (p-b), t); // send it... // Snooping this session. if (sp->snoop_ip && sp->snoop_port) @@ -2110,9 +2128,14 @@ void sessionshutdown(sessionidt s, char const *reason, int cdn_result, int cdn_e free_ip_address(s); // unroute IPv6, if setup - if (session[s].ppp.ipv6cp == Opened && session[s].ipv6prefixlen && del_routes) + if (session[s].ipv6route.s6_addr[0] && session[s].ipv6prefixlen && del_routes) route6set(s, session[s].ipv6route, session[s].ipv6prefixlen, 0); - + + if (session[s].ipv6address.s6_addr[0] && del_routes) + { + route6set(s, session[s].ipv6address, 128, 0); + } + if (b) { // This session was part of a bundle @@ -2168,6 +2191,11 @@ void sessionshutdown(sessionidt s, char const *reason, int cdn_result, int cdn_e // IPV6 route if (session[new_s].ipv6prefixlen) cache_ipv6map(session[new_s].ipv6route, session[new_s].ipv6prefixlen, new_s); + + if (session[new_s].ipv6address.s6_addr[0]) + { + cache_ipv6map(session[new_s].ipv6address, 128, new_s); + } } } } @@ -3405,6 +3433,20 @@ void processudp(uint8_t *buf, int len, struct sockaddr_in *addr, uint16_t indexu return; } + if (!config->cluster_iam_master) + { + // Check if DhcpV6, IP dst: FF02::1:2, Src Port 0x0222 (546), Dst Port 0x0223 (547) + if (*(p + 6) == 17 && *(p + 24) == 0xFF && *(p + 25) == 2 && + *(uint32_t *)(p + 26) == 0 && *(uint32_t *)(p + 30) == 0 && + *(uint16_t *)(p + 34) == 0 && *(p + 36) == 0 && *(p + 37) == 1 && *(p + 38) == 0 && *(p + 39) == 2 && + *(p + 40) == 2 && *(p + 41) == 0x22 && *(p + 42) == 2 && *(p + 43) == 0x23) + { + // DHCPV6 must be managed by the Master. + master_forward_packet(buf, len, addr->sin_addr.s_addr, addr->sin_port, indexudpfd); + return; + } + } + processipv6in(s, t, p, l); } else if (session[s].ppp.lcp == Opened) @@ -5050,9 +5092,9 @@ int main(int argc, char *argv[]) case 'd': if (fork()) exit(0); setsid(); - freopen("/dev/null", "r", stdin); - freopen("/dev/null", "w", stdout); - freopen("/dev/null", "w", stderr); + if(!freopen("/dev/null", "r", stdin)) LOG(0, 0, 0, "Error freopen stdin: %s\n", strerror(errno)); + if(!freopen("/dev/null", "w", stdout)) LOG(0, 0, 0, "Error freopen stdout: %s\n", strerror(errno)); + if(!freopen("/dev/null", "w", stderr)) LOG(0, 0, 0, "Error freopen stderr: %s\n", strerror(errno)); break; case 'v': optdebug++; @@ -5092,6 +5134,7 @@ int main(int argc, char *argv[]) init_tbf(config->num_tbfs); LOG(0, 0, 0, "L2TPNS version " VERSION "\n"); + LOG(0, 0, 0, "Copyright (c) 2012, 2013, 2014 ISP FDN & SAMESWIRELESS\n"); LOG(0, 0, 0, "Copyright (c) 2003, 2004, 2005, 2006 Optus Internet Engineering\n"); LOG(0, 0, 0, "Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced\n"); { @@ -5103,7 +5146,7 @@ int main(int argc, char *argv[]) LOG(0, 0, 0, "Can't set ulimit: %s\n", strerror(errno)); // Make core dumps go to /tmp - chdir("/tmp"); + if(chdir("/tmp")) LOG(0, 0, 0, "Error chdir /tmp: %s\n", strerror(errno)); } if (config->scheduler_fifo) @@ -5167,6 +5210,7 @@ int main(int argc, char *argv[]) initrad(); initippool(); + dhcpv6_init(); // seed prng { @@ -5809,6 +5853,15 @@ int load_session(sessionidt s, sessiont *new) uncache_ipmap(session[s].ip); } + // remove old IPV6 routes... + if (session[s].ipv6route.s6_addr[0] && session[s].ipv6prefixlen) + route6set(s, session[s].ipv6route, session[s].ipv6prefixlen, 0); + + if (session[s].ipv6address.s6_addr[0]) + { + route6set(s, session[s].ipv6address, 128, 0); + } + routed = 0; // add new routes... @@ -5836,7 +5889,12 @@ int load_session(sessionidt s, sessiont *new) // check v6 routing if (new->ipv6prefixlen && new->ppp.ipv6cp == Opened && session[s].ppp.ipv6cp != Opened) - route6set(s, new->ipv6route, new->ipv6prefixlen, 1); + route6set(s, new->ipv6route, new->ipv6prefixlen, 1); + + if (new->ipv6address.s6_addr[0] && new->ppp.ipv6cp == Opened && session[s].ppp.ipv6cp != Opened) + { + route6set(s, new->ipv6address, 128, 1); + } // check filters if (new->filter_in && (new->filter_in > MAXFILTER || !ip_filters[new->filter_in - 1].name[0]))