X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/58617785d5676bdb0dc09b6360c853407f40f372..c450bdccc0e204223543b305c862e85db572411e:/l2tpns.c diff --git a/l2tpns.c b/l2tpns.c index 732d7e8..3b4b6af 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 1.136 2005-09-16 05:54:53 bodea Exp $"; +char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.142 2005-09-19 02:39:57 bodea Exp $"; #include #include @@ -96,7 +96,9 @@ uint32_t eth_tx = 0; static uint32_t ip_pool_size = 1; // Size of the pool of addresses used for dynamic address allocation. time_t time_now = 0; // Current time in seconds since epoch. static char time_now_string[64] = {0}; // Current time as a string. +int time_changed = 0; // time_now changed char main_quit = 0; // True if we're in the process of exiting. +char main_reload = 0; // Re-load pending linked_list *loaded_plugins; linked_list *plugins[MAX_PLUGIN_TYPES]; @@ -188,7 +190,6 @@ static void cache_ipv6map(struct in6_addr ip, int prefixlen, int s); static void free_ip_address(sessionidt s); static void dump_acct_info(int all); static void sighup_handler(int sig); -static void sigalrm_handler(int sig); static void shutdown_handler(int sig); static void sigchild_handler(int sig); static void build_chap_response(uint8_t *challenge, uint8_t id, uint16_t challenge_length, uint8_t **challenge_response); @@ -210,11 +211,17 @@ static void unhide_value(uint8_t *value, size_t len, uint16_t type, uint8_t *vec #define QUIT_SHUTDOWN 2 // SIGQUIT: shutdown sessions/tunnels, reject new connections // return internal time (10ths since process startup), set f if given +// as a side-effect sets time_now, and time_changed static clockt now(double *f) { struct timeval t; gettimeofday(&t, 0); if (f) *f = t.tv_sec + t.tv_usec / 1000000.0; + if (t.tv_sec != time_now) + { + time_now = t.tv_sec; + time_changed++; + } return (t.tv_sec - basetime) * 10 + t.tv_usec / 100000 + 1; } @@ -1023,13 +1030,13 @@ void adjust_tcp_mss(sessionidt s, tunnelidt t, uint8_t *buf, int len, uint8_t *t if (orig <= MSS) return; // mss OK - LOG(5, s, t, "TCP: %s:%u -> %s:%u SYN%s, adjusted mss from %u to %u\n", + LOG(5, s, t, "TCP: %s:%u -> %s:%u SYN%s: adjusted mss from %u to %u\n", fmtaddr(*(in_addr_t *) (buf + 12), 0), ntohs(*(uint16_t *) tcp), fmtaddr(*(in_addr_t *) (buf + 16), 1), ntohs(*(uint16_t *) (tcp + 2)), (tcp[13] & TCP_FLAG_ACK) ? ",ACK" : "", orig, MSS); // set mss - *(int16_t *) mss = MSS; + *(int16_t *) mss = htons(MSS); // adjust checksum (see rfc1141) sum = orig + (~MSS & 0xffff); @@ -2608,12 +2615,12 @@ void processudp(uint8_t *buf, int len, struct sockaddr_in *addr) l += 6; if (l > mru) l = mru; - q = makeppp(buf, sizeof(buf), 0, 0, s, t, proto); + q = makeppp(buf, sizeof(buf), 0, 0, s, t, PPPLCP); if (!q) return; - *q = CodeRej; + *q = ProtocolRej; *(q + 1) = ++sess_local[s].lcp_ident; - *(uint16_t *)(q + 2) = l; + *(uint16_t *)(q + 2) = htons(l); *(uint16_t *)(q + 4) = htons(proto); memcpy(q + 6, p, l - 6); @@ -3228,9 +3235,17 @@ static void mainloop(void) int more = 0; int n; + + if (main_reload) + { + main_reload = 0; + read_config_file(); + config->reload_config++; + } + if (config->reload_config) { - // Update the config state based on config settings + config->reload_config = 0; update_config(); } @@ -3394,6 +3409,35 @@ static void mainloop(void) } } + if (time_changed) + { + double Mbps = 1024.0 * 1024.0 / 8 * time_changed; + + // Log current traffic stats + snprintf(config->bandwidth, sizeof(config->bandwidth), + "UDP-ETH:%1.0f/%1.0f ETH-UDP:%1.0f/%1.0f TOTAL:%0.1f IN:%u OUT:%u", + (udp_rx / Mbps), (eth_tx / Mbps), (eth_rx / Mbps), (udp_tx / Mbps), + ((udp_tx + udp_rx + eth_tx + eth_rx) / Mbps), + udp_rx_pkt / time_changed, eth_rx_pkt / time_changed); + + udp_tx = udp_rx = 0; + udp_rx_pkt = eth_rx_pkt = 0; + eth_tx = eth_rx = 0; + time_changed = 0; + + if (config->dump_speed) + printf("%s\n", config->bandwidth); + + // Update the internal time counter + strftime(time_now_string, sizeof(time_now_string), "%Y-%m-%d %H:%M:%S", localtime(&time_now)); + + { + // Run timer hooks + struct param_timer p = { time_now }; + run_plugins(PLUGIN_TIMER, &p); + } + } + // Runs on every machine (master and slaves). if (next_cluster_ping <= TIME) { @@ -4069,14 +4113,13 @@ int main(int argc, char *argv[]) // Start the timer routine off time(&time_now); strftime(time_now_string, sizeof(time_now_string), "%Y-%m-%d %H:%M:%S", localtime(&time_now)); - signal(SIGALRM, sigalrm_handler); - siginterrupt(SIGALRM, 0); initplugins(); initdata(optdebug, optconfig); init_cli(hostname); read_config_file(); + update_config(); init_tbf(config->num_tbfs); LOG(0, 0, 0, "L2TPNS version " VERSION "\n"); @@ -4152,8 +4195,6 @@ int main(int argc, char *argv[]) LOG(0, 0, 0, "Can't lock pages: %s\n", strerror(errno)); } - alarm(1); - // Drop privileges here if (config->target_uid > 0 && geteuid() == 0) setuid(config->target_uid); @@ -4175,53 +4216,11 @@ int main(int argc, char *argv[]) static void sighup_handler(int sig) { - if (log_stream) - { - if (log_stream != stderr) - fclose(log_stream); - - log_stream = NULL; - } - - read_config_file(); -} - -static void sigalrm_handler(int sig) -{ - // Log current traffic stats - - snprintf(config->bandwidth, sizeof(config->bandwidth), - "UDP-ETH:%1.0f/%1.0f ETH-UDP:%1.0f/%1.0f TOTAL:%0.1f IN:%u OUT:%u", - (udp_rx / 1024.0 / 1024.0 * 8), - (eth_tx / 1024.0 / 1024.0 * 8), - (eth_rx / 1024.0 / 1024.0 * 8), - (udp_tx / 1024.0 / 1024.0 * 8), - ((udp_tx + udp_rx + eth_tx + eth_rx) / 1024.0 / 1024.0 * 8), - udp_rx_pkt, eth_rx_pkt); - - udp_tx = udp_rx = 0; - udp_rx_pkt = eth_rx_pkt = 0; - eth_tx = eth_rx = 0; - - if (config->dump_speed) - printf("%s\n", config->bandwidth); - - // Update the internal time counter - time(&time_now); - strftime(time_now_string, sizeof(time_now_string), "%Y-%m-%d %H:%M:%S", localtime(&time_now)); - alarm(1); - - { - // Run timer hooks - struct param_timer p = { time_now }; - run_plugins(PLUGIN_TIMER, &p); - } - + main_reload++; } static void shutdown_handler(int sig) { - LOG(1, 0, 0, "Shutting down\n"); main_quit = (sig == SIGQUIT) ? QUIT_SHUTDOWN : QUIT_FAILOVER; } @@ -4471,8 +4470,6 @@ static void update_config() LOG(0, 0, 0, "Can't write to PID file %s: %s\n", config->pid_file, strerror(errno)); } } - - config->reload_config = 0; } static void read_config_file() @@ -4490,7 +4487,6 @@ static void read_config_file() cli_do_file(f); LOG(3, 0, 0, "Done reading config file\n"); fclose(f); - update_config(); } int sessionsetup(sessionidt s, tunnelidt t)