// L2TPNS Command Line Interface // vim: sw=8 ts=8 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "dhcp6.h" #include "l2tpns.h" #include "constants.h" #include "util.h" #include "cluster.h" #include "tbf.h" #include "ll.h" #ifdef BGP #include "bgp.h" #endif #include "l2tplac.h" extern tunnelt *tunnel; extern bundlet *bundle; extern sessiont *session; extern radiust *radius; extern ippoolt *ip_address_pool; extern struct Tstats *_statistics; static struct cli_def *cli = NULL; extern configt *config; extern config_descriptt config_values[]; #ifdef RINGBUFFER extern struct Tringbuffer *ringbuffer; #endif extern struct cli_session_actions *cli_session_actions; extern struct cli_tunnel_actions *cli_tunnel_actions; extern tbft *filter_list; extern ip_filtert *ip_filters; struct { char critical; char error; char warning; char info; char calls; char data; } debug_flags; #ifdef RINGBUFFER static int debug_rb_tail; static char *debug_levels[] = { "CRIT", "ERROR", "WARN", "INFO", "CALL", "DATA", }; #endif static int cmd_show_session(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_tunnels(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_users(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_radius(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_version(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_pool(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_run(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_banana(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_plugins(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_throttle(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_write_memory(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_drop_user(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_drop_tunnel(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_drop_session(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_snoop(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_no_snoop(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_throttle(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_no_throttle(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_debug(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_no_debug(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_set(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_load_plugin(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_remove_plugin(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_uptime(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_shutdown(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_reload(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_setforward(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_rmtlnsconf(struct cli_def *cli, const char *command, char **argv, int argc); static int regular_stuff(struct cli_def *cli); #ifdef STATISTICS static int cmd_show_counters(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_clear_counters(struct cli_def *cli, const char *command, char **argv, int argc); #endif /* STATISTICS */ #ifdef BGP #define MODE_CONFIG_BGP 8 static int cmd_router_bgp(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_router_bgp_neighbour(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_router_bgp_no_neighbour(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_bgp(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_suspend_bgp(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_no_suspend_bgp(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_restart_bgp(struct cli_def *cli, const char *command, char **argv, int argc); #endif /* BGP */ #define MODE_CONFIG_NACL 9 static int cmd_ip_access_list(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_no_ip_access_list(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_ip_access_list_rule(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_filter(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_no_filter(struct cli_def *cli, const char *command, char **argv, int argc); static int cmd_show_access_list(struct cli_def *cli, const char *command, char **argv, int argc); /* match if b is a substr of a */ #define MATCH(a,b) (!strncmp((a), (b), strlen(b))) void init_cli() { FILE *f; char buf[4096]; struct cli_command *c; struct cli_command *c2; cli = cli_init(); c = cli_register_command(cli, NULL, "show", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL); cli_register_command(cli, c, "banana", cmd_show_banana, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a banana"); #ifdef BGP cli_register_command(cli, c, "bgp", cmd_show_bgp, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show BGP status"); #endif /* BGP */ cli_register_command(cli, c, "cluster", cmd_show_cluster, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show cluster information"); cli_register_command(cli, c, "ipcache", cmd_show_ipcache, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show contents of the IP cache"); cli_register_command(cli, c, "plugins", cmd_show_plugins, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "List all installed plugins"); cli_register_command(cli, c, "pool", cmd_show_pool, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show the IP address allocation pool"); cli_register_command(cli, c, "radius", cmd_show_radius, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show active radius queries"); cli_register_command(cli, c, "running-config", cmd_show_run, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Show the currently running configuration"); cli_register_command(cli, c, "remotelns-conf", cmd_show_rmtlnsconf, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Show a list of remote LNS configuration"); cli_register_command(cli, c, "session", cmd_show_session, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a list of sessions or details for a single session"); cli_register_command(cli, c, "tbf", cmd_show_tbf, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "List all token bucket filters in use"); cli_register_command(cli, c, "throttle", cmd_show_throttle, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "List all throttled sessions and associated TBFs"); cli_register_command(cli, c, "tunnels", cmd_show_tunnels, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a list of tunnels or details for a single tunnel"); cli_register_command(cli, c, "users", cmd_show_users, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show a list of all connected users or details of selected user"); cli_register_command(cli, c, "version", cmd_show_version, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show currently running software version"); cli_register_command(cli, c, "access-list", cmd_show_access_list, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show named access-list"); c2 = cli_register_command(cli, c, "histogram", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL); cli_register_command(cli, c2, "idle", cmd_show_hist_idle, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show histogram of session idle times"); cli_register_command(cli, c2, "open", cmd_show_hist_open, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show histogram of session durations"); #ifdef STATISTICS cli_register_command(cli, c, "counters", cmd_show_counters, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Display all the internal counters and running totals"); c = cli_register_command(cli, NULL, "clear", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL); cli_register_command(cli, c, "counters", cmd_clear_counters, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Clear internal counters"); #endif cli_register_command(cli, NULL, "uptime", cmd_uptime, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show uptime and bandwidth utilisation"); cli_register_command(cli, NULL, "shutdown", cmd_shutdown, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Shutdown l2tpns daemon and exit"); cli_register_command(cli, NULL, "reload", cmd_reload, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Reload configuration"); c = cli_register_command(cli, NULL, "write", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL); cli_register_command(cli, c, "memory", cmd_write_memory, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Save the running config to flash"); cli_register_command(cli, c, "terminal", cmd_show_run, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Show the running config"); cli_register_command(cli, NULL, "snoop", cmd_snoop, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Enable interception of a session"); cli_register_command(cli, NULL, "throttle", cmd_throttle, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Enable throttling of a session"); cli_register_command(cli, NULL, "filter", cmd_filter, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Add filtering to a session"); cli_register_command(cli, NULL, "debug", cmd_debug, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Set the level of logging that is shown on the console"); #ifdef BGP c = cli_register_command(cli, NULL, "suspend", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL); cli_register_command(cli, c, "bgp", cmd_suspend_bgp, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Withdraw routes from BGP neighbour"); #endif /* BGP */ c = cli_register_command(cli, NULL, "no", NULL, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, NULL); cli_register_command(cli, c, "snoop", cmd_no_snoop, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disable interception of a session"); cli_register_command(cli, c, "throttle", cmd_no_throttle, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disable throttling of a session"); cli_register_command(cli, c, "filter", cmd_no_filter, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Remove filtering from a session"); cli_register_command(cli, c, "debug", cmd_no_debug, PRIVILEGE_UNPRIVILEGED, MODE_EXEC, "Turn off logging of a certain level of debugging"); #ifdef BGP c2 = cli_register_command(cli, c, "suspend", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL); cli_register_command(cli, c2, "bgp", cmd_no_suspend_bgp, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Advertise routes to BGP neighbour"); c = cli_register_command(cli, NULL, "restart", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL); cli_register_command(cli, c, "bgp", cmd_restart_bgp, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Restart BGP"); c = cli_register_command(cli, NULL, "router", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL); cli_register_command(cli, c, "bgp", cmd_router_bgp, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Configure BGP"); cli_register_command(cli, NULL, "neighbour", cmd_router_bgp_neighbour, PRIVILEGE_PRIVILEGED, MODE_CONFIG_BGP, "Configure BGP neighbour"); c = cli_register_command(cli, NULL, "no", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG_BGP, NULL); cli_register_command(cli, c, "neighbour", cmd_router_bgp_no_neighbour, PRIVILEGE_PRIVILEGED, MODE_CONFIG_BGP, "Remove BGP neighbour"); #endif /* BGP */ c = cli_register_command(cli, NULL, "drop", NULL, PRIVILEGE_PRIVILEGED, MODE_EXEC, NULL); cli_register_command(cli, c, "user", cmd_drop_user, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disconnect a user"); cli_register_command(cli, c, "tunnel", cmd_drop_tunnel, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disconnect a tunnel and all sessions on that tunnel"); cli_register_command(cli, c, "session", cmd_drop_session, PRIVILEGE_PRIVILEGED, MODE_EXEC, "Disconnect a session"); c = cli_register_command(cli, NULL, "load", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL); cli_register_command(cli, c, "plugin", cmd_load_plugin, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Load a plugin"); c = cli_register_command(cli, NULL, "remove", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL); cli_register_command(cli, c, "plugin", cmd_remove_plugin, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Remove a plugin"); cli_register_command(cli, NULL, "set", cmd_set, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Set a configuration variable"); cli_register_command(cli, NULL, "setforward", cmd_setforward, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Set the Remote LNS Forward"); c = cli_register_command(cli, NULL, "ip", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL); cli_register_command(cli, c, "access-list", cmd_ip_access_list, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Add named access-list"); cli_register_command(cli, NULL, "permit", cmd_ip_access_list_rule, PRIVILEGE_PRIVILEGED, MODE_CONFIG_NACL, "Permit rule"); cli_register_command(cli, NULL, "deny", cmd_ip_access_list_rule, PRIVILEGE_PRIVILEGED, MODE_CONFIG_NACL, "Deny rule"); c = cli_register_command(cli, NULL, "no", NULL, PRIVILEGE_UNPRIVILEGED, MODE_CONFIG, NULL); c2 = cli_register_command(cli, c, "ip", NULL, PRIVILEGE_PRIVILEGED, MODE_CONFIG, NULL); cli_register_command(cli, c2, "access-list", cmd_no_ip_access_list, PRIVILEGE_PRIVILEGED, MODE_CONFIG, "Remove named access-list"); // Enable regular processing cli_regular(cli, regular_stuff); if (!(f = fopen(CLIUSERS, "r"))) { LOG(0, 0, 0, "WARNING! No users specified. Command-line access is open to all\n"); } else { while (fgets(buf, 4096, f)) { char *p; if (*buf == '#') continue; if ((p = strchr(buf, '\r'))) *p = 0; if ((p = strchr(buf, '\n'))) *p = 0; if (!*buf) continue; if (!(p = strchr((char *)buf, ':'))) continue; *p++ = 0; if (!strcmp(buf, "enable")) { cli_allow_enable(cli, p); LOG(3, 0, 0, "Setting enable password\n"); } else { cli_allow_user(cli, buf, p); LOG(3, 0, 0, "Allowing user %s to connect to the CLI\n", buf); } } fclose(f); } } void cli_init_complete(char *hostname) { int on = 1; struct sockaddr_in addr; if (hostname && *hostname) cli_set_hostname(cli, hostname); else cli_set_hostname(cli, "l2tpns"); memset(&addr, 0, sizeof(addr)); clifd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); setsockopt(clifd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)); { int flags; // Set cli fd as non-blocking flags = fcntl(clifd, F_GETFL, 0); fcntl(clifd, F_SETFL, flags | O_NONBLOCK); } addr.sin_family = AF_INET; addr.sin_addr.s_addr = config->cli_bind_address; /* defaults to INADDR_ANY */ addr.sin_port = htons(23); if (bind(clifd, (void *) &addr, sizeof(addr)) < 0) { LOG(0, 0, 0, "Error binding cli on port 23: %s\n", strerror(errno)); close(clifd); clifd = -1; return; } if (listen(clifd, 10) < 0) { LOG(0, 0, 0, "Error listening on cli port 23: %s\n", strerror(errno)); close(clifd); clifd = -1; return; } } void cli_do(int sockfd) { int require_auth = 1; struct sockaddr_in addr; socklen_t l = sizeof(addr); if (fork_and_close()) return; if (getpeername(sockfd, (struct sockaddr *) &addr, &l) == 0) { require_auth = addr.sin_addr.s_addr != inet_addr("127.0.0.1"); LOG(require_auth ? 3 : 4, 0, 0, "Accepted connection to CLI from %s\n", fmtaddr(addr.sin_addr.s_addr, 0)); } else LOG(0, 0, 0, "getpeername() failed on cli socket. Requiring authentication: %s\n", strerror(errno)); if (require_auth) { LOG(3, 0, 0, "CLI is remote, requiring authentication\n"); if (!cli->users) /* paranoia */ { LOG(0, 0, 0, "No users for remote authentication! Exiting CLI\n"); exit(0); } } else { /* no username/pass required */ cli->users = 0; } #ifdef RINGBUFFER debug_rb_tail = ringbuffer->tail; #endif memset(&debug_flags, 0, sizeof(debug_flags)); debug_flags.critical = 1; cli_loop(cli, sockfd); close(sockfd); LOG(require_auth ? 3 : 4, 0, 0, "Closed CLI connection from %s\n", fmtaddr(addr.sin_addr.s_addr, 0)); exit(0); } static void cli_print_log(struct cli_def *cli, const char *string) { LOG(3, 0, 0, "%s\n", string); } void cli_do_file(FILE *fh) { LOG(3, 0, 0, "Reading configuration file\n"); cli_print_callback(cli, cli_print_log); cli_file(cli, fh, PRIVILEGE_PRIVILEGED, MODE_CONFIG); cli_print_callback(cli, NULL); } int cli_arg_help(struct cli_def *cli, int cr_ok, char *entry, ...) { va_list ap; char *desc; char buf[16]; char *p; va_start(ap, entry); while (entry) { /* allow one %d */ if ((p = strchr(entry, '%')) && !strchr(p+1, '%') && p[1] == 'd') { int v = va_arg(ap, int); snprintf(buf, sizeof(buf), entry, v); p = buf; } else p = entry; desc = va_arg(ap, char *); if (desc && *desc) cli_error(cli, " %-20s %s", p, desc); else cli_error(cli, " %s", p); entry = desc ? va_arg(ap, char *) : 0; } va_end(ap); if (cr_ok) cli_error(cli, " "); return CLI_OK; } static int cmd_show_session(struct cli_def *cli, const char *command, char **argv, int argc) { int i; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, 1, "<1-%d>", MAXSESSION-1, "Show specific session by id", NULL); time(&time_now); if (argc > 0) { // Show individual session for (i = 0; i < argc; i++) { unsigned int s, b_in, b_out; s = atoi(argv[i]); if (s <= 0 || s >= MAXSESSION) { cli_print(cli, "Invalid session id \"%s\"", argv[i]); continue; } cli_print(cli, "\r\nSession %d:", s); cli_print(cli, "\tUser:\t\t%s", session[s].user[0] ? session[s].user : "none"); cli_print(cli, "\tCalling Num:\t%s", session[s].calling); cli_print(cli, "\tCalled Num:\t%s", session[s].called); cli_print(cli, "\tTunnel ID:\t%d", session[s].tunnel); cli_print(cli, "\tPPP Phase:\t%s", ppp_phase(session[s].ppp.phase)); switch (session[s].ppp.phase) { case Establish: cli_print(cli, "\t LCP state:\t%s", ppp_state(session[s].ppp.lcp)); break; case Authenticate: case Network: cli_print(cli, "\t IPCP state:\t%s", ppp_state(session[s].ppp.ipcp)); cli_print(cli, "\t IPV6CP state:\t%s", ppp_state(session[s].ppp.ipv6cp)); cli_print(cli, "\t CCP state:\t%s", ppp_state(session[s].ppp.ccp)); } cli_print(cli, "\tIP address:\t%s", fmtaddr(htonl(session[s].ip), 0)); cli_print(cli, "\tUnique SID:\t%u", session[s].unique_id); cli_print(cli, "\tOpened:\t\t%u seconds", session[s].opened ? abs(time_now - session[s].opened) : 0); cli_print(cli, "\tIdle time:\t%u seconds", session[s].last_packet ? abs(time_now - session[s].last_packet) : 0); if (session[s].session_timeout) { clockt opened = session[s].opened; if (session[s].bundle && bundle[session[s].bundle].num_of_links > 1) opened = bundle[session[s].bundle].online_time; cli_print(cli, "\tSess Timeout:\t%u seconds", session[s].session_timeout - (opened ? abs(time_now - opened) : 0)); } if (session[s].idle_timeout) cli_print(cli, "\tIdle Timeout:\t%u seconds", session[s].idle_timeout - (session[s].last_data ? abs(time_now - session[s].last_data) : 0)); if (session[s].timeout) { cli_print(cli, "\tRemaining time:\t%u", (session[s].bundle && bundle[session[s].bundle].num_of_links > 1) ? (unsigned) (session[s].timeout - bundle[session[s].bundle].online_time) : (unsigned) (session[s].timeout - (time_now - session[s].opened))); } cli_print(cli, "\tBytes In/Out:\t%u/%u", session[s].cout, session[s].cin); cli_print(cli, "\tPkts In/Out:\t%u/%u", session[s].pout, session[s].pin); cli_print(cli, "\tMRU:\t\t%d", session[s].mru); cli_print(cli, "\tRx Speed:\t%u", session[s].rx_connect_speed); cli_print(cli, "\tTx Speed:\t%u", session[s].tx_connect_speed); if (session[s].filter_in && session[s].filter_in <= MAXFILTER) cli_print(cli, "\tFilter in:\t%u (%s)", session[s].filter_in, ip_filters[session[s].filter_in - 1].name); if (session[s].filter_out && session[s].filter_out <= MAXFILTER) cli_print(cli, "\tFilter out:\t%u (%s)", session[s].filter_out, ip_filters[session[s].filter_out - 1].name); if (session[s].snoop_ip && session[s].snoop_port) cli_print(cli, "\tIntercepted:\t%s:%d", fmtaddr(session[s].snoop_ip, 0), session[s] .snoop_port); else cli_print(cli, "\tIntercepted:\tno"); cli_print(cli, "\tWalled Garden:\t%s", session[s].walled_garden ? "YES" : "no"); { int t = (session[s].throttle_in || session[s].throttle_out); cli_print(cli, "\tThrottled:\t%s%s%.0d%s%s%.0d%s%s", t ? "YES" : "no", t ? " (" : "", session[s].throttle_in, session[s].throttle_in ? "kbps" : t ? "-" : "", t ? "/" : "", session[s].throttle_out, session[s].throttle_out ? "kbps" : t ? "-" : "", t ? ")" : ""); } b_in = session[s].tbf_in; b_out = session[s].tbf_out; if (b_in || b_out) cli_print(cli, "\t\t\t%5s %6s %6s | %7s %7s %8s %8s %8s %8s", "Rate", "Credit", "Queued", "ByteIn", "PackIn", "ByteSent", "PackSent", "PackDrop", "PackDelay"); if (b_in) cli_print(cli, "\tTBFI#%d%1s%s\t%5d %6d %6d | %7d %7d %8d %8d %8d %8d", b_in, (filter_list[b_in].next ? "*" : " "), (b_in < 100 ? "\t" : ""), filter_list[b_in].rate * 8, filter_list[b_in].credit, filter_list[b_in].queued, filter_list[b_in].b_queued, filter_list[b_in].p_queued, filter_list[b_in].b_sent, filter_list[b_in].p_sent, filter_list[b_in].p_dropped, filter_list[b_in].p_delayed); if (b_out) cli_print(cli, "\tTBFO#%d%1s%s\t%5d %6d %6d | %7d %7d %8d %8d %8d %8d", b_out, (filter_list[b_out].next ? "*" : " "), (b_out < 100 ? "\t" : ""), filter_list[b_out].rate * 8, filter_list[b_out].credit, filter_list[b_out].queued, filter_list[b_out].b_queued, filter_list[b_out].p_queued, filter_list[b_out].b_sent, filter_list[b_out].p_sent, filter_list[b_out].p_dropped, filter_list[b_out].p_delayed); } return CLI_OK; } // Show Summary cli_print(cli, "%5s %7s %4s %-32s %-15s %s %s %s %s %10s %10s %10s %4s %10s %-18s %s", "SID", "LkToSID", "TID", "Username", "IP", "I", "T", "G", "6", "opened", "downloaded", "uploaded", "idle", "Rem.Time", "LAC(L)/RLNS(R)/PPPOE(P)", "CLI"); for (i = 1; i < MAXSESSION; i++) { uint32_t rem_time; if (!session[i].opened) continue; if (session[i].bundle && bundle[session[i].bundle].num_of_links > 1) rem_time = session[i].timeout ? (session[i].timeout - bundle[session[i].bundle].online_time) : 0; else rem_time = session[i].timeout ? (session[i].timeout - (time_now-session[i].opened)) : 0; cli_print(cli, "%5d %7d %4d %-32s %-15s %s %s %s %s %10u %10lu %10lu %4u %10lu %3s%-20s %s", i, session[i].forwardtosession, session[i].tunnel, session[i].user[0] ? session[i].user : "*", fmtaddr(htonl(session[i].ip), 0), (session[i].snoop_ip && session[i].snoop_port) ? "Y" : "N", (session[i].throttle_in || session[i].throttle_out) ? "Y" : "N", (session[i].walled_garden) ? "Y" : "N", (session[i].ppp.ipv6cp == Opened) ? "Y" : "N", abs(time_now - (unsigned long)session[i].opened), (unsigned long)session[i].cout, (unsigned long)session[i].cin, abs(time_now - (session[i].last_packet ? session[i].last_packet : time_now)), (unsigned long)(rem_time), (session[i].tunnel == TUNNEL_ID_PPPOE)?"(P)":(tunnel[session[i].tunnel].isremotelns?"(R)":"(L)"), (session[i].tunnel == TUNNEL_ID_PPPOE)?fmtMacAddr(session[i].src_hwaddr):fmtaddr(htonl(tunnel[session[i].tunnel].ip), 1), session[i].calling[0] ? session[i].calling : "*"); } return CLI_OK; } static int cmd_show_tunnels(struct cli_def *cli, const char *command, char **argv, int argc) { int i, x, show_all = 0; char *states[] = { "Free", "Open", "Closing", "Opening", }; if (CLI_HELP_REQUESTED) { if (argc > 1) return cli_arg_help(cli, 1, "<1-%d>", MAXTUNNEL-1, "Show specific tunnel by id", NULL); return cli_arg_help(cli, 1, "all", "Show all tunnels, including unused", "<1-%d>", MAXTUNNEL-1, "Show specific tunnel by id", NULL); } time(&time_now); if (argc > 0) { if (strcmp(argv[0], "all") == 0) { show_all = 1; } else { // Show individual tunnel for (i = 0; i < argc; i++) { char s[65535] = {0}; unsigned int t; t = atoi(argv[i]); if (t <= 0 || t >= MAXTUNNEL) { cli_print(cli, "Invalid tunnel id \"%s\"", argv[i]); continue; } cli_print(cli, "\r\nTunnel %d:", t); cli_print(cli, "\tState:\t\t%s", states[tunnel[t].state]); cli_print(cli, "\tHostname:\t%s", tunnel[t].hostname[0] ? tunnel[t].hostname : "(none)"); cli_print(cli, "\tRemote IP:\t%s", fmtaddr(htonl(tunnel[t].ip), 0)); cli_print(cli, "\tRemote Port:\t%d", tunnel[t].port); cli_print(cli, "\tRx Window:\t%u", tunnel[t].window); cli_print(cli, "\tNext Recv:\t%u", tunnel[t].nr); cli_print(cli, "\tNext Send:\t%u", tunnel[t].ns); cli_print(cli, "\tQueue Len:\t%u", tunnel[t].controlc); cli_print(cli, "\tLast Packet Age:%u", (unsigned)(time_now - tunnel[t].last)); for (x = 0; x < MAXSESSION; x++) if (session[x].tunnel == t && session[x].opened && !session[x].die) sprintf(s, "%s%u ", s, x); cli_print(cli, "\tSessions:\t%s", s); } return CLI_OK; } } // Show tunnel summary cli_print(cli, "%4s %20s %20s %6s %s", "TID", "Hostname", "IP", "State", "Sessions"); for (i = 1; i < MAXTUNNEL; i++) { int sessions = 0; if (!show_all && (!tunnel[i].ip || tunnel[i].die)) continue; for (x = 0; x < MAXSESSION; x++) if (session[x].tunnel == i && session[x].opened && !session[x].die) sessions++; cli_print(cli, "%4d %20s %20s %6s %6d %s", i, *tunnel[i].hostname ? tunnel[i].hostname : "(null)", fmtaddr(htonl(tunnel[i].ip), 0), states[tunnel[i].state], sessions ,(i == TUNNEL_ID_PPPOE)?"Tunnel pppoe":(tunnel[i].isremotelns?"Tunnel To Remote LNS":"Tunnel To LAC") ); } return CLI_OK; } static int cmd_show_users(struct cli_def *cli, const char *command, char **argv, int argc) { char sid[32][8]; char *sargv[32]; int sargc = 0; int i; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, 1, "USER", "Show details for specific username", NULL); for (i = 0; i < MAXSESSION; i++) { if (!session[i].opened) continue; if (!session[i].user[0]) continue; if (argc > 0) { int j; for (j = 0; j < argc && sargc < 32; j++) { if (strcmp(argv[j], session[i].user) == 0) { snprintf(sid[sargc], sizeof(sid[0]), "%d", i); sargv[sargc] = sid[sargc]; sargc++; } } continue; } cli_print(cli, "%s", session[i].user); } if (sargc > 0) return cmd_show_session(cli, "users", sargv, sargc); return CLI_OK; } #ifdef STATISTICS static int cmd_show_counters(struct cli_def *cli, const char *command, char **argv, int argc) { if (CLI_HELP_REQUESTED) return CLI_HELP_NO_ARGS; cli_print(cli, "%-10s %10s %10s %10s %10s", "Ethernet", "Bytes", "Packets", "Errors", "Dropped"); cli_print(cli, "%-10s %10u %10u %10u %10u", "RX", GET_STAT(tun_rx_bytes), GET_STAT(tun_rx_packets), GET_STAT(tun_rx_errors), GET_STAT(tun_rx_dropped)); cli_print(cli, "%-10s %10u %10u %10u", "TX", GET_STAT(tun_tx_bytes), GET_STAT(tun_tx_packets), GET_STAT(tun_tx_errors)); cli_print(cli, " "); cli_print(cli, "%-10s %10s %10s %10s %10s", "Tunnel", "Bytes", "Packets", "Errors", "Retries"); cli_print(cli, "%-10s %10u %10u %10u", "RX", GET_STAT(tunnel_rx_bytes), GET_STAT(tunnel_rx_packets), GET_STAT(tunnel_rx_errors)); cli_print(cli, "%-10s %10u %10u %10u %10u", "TX", GET_STAT(tunnel_tx_bytes), GET_STAT(tunnel_tx_packets), GET_STAT(tunnel_tx_errors), GET_STAT(tunnel_retries)); cli_print(cli, " "); cli_print(cli, "%-30s%-10s", "Counter", "Value"); cli_print(cli, "-----------------------------------------"); cli_print(cli, "%-30s%u", "radius_retries", GET_STAT(radius_retries)); cli_print(cli, "%-30s%u", "arp_sent", GET_STAT(arp_sent)); cli_print(cli, "%-30s%u", "packets_snooped", GET_STAT(packets_snooped)); cli_print(cli, "%-30s%u", "tunnel_created", GET_STAT(tunnel_created)); cli_print(cli, "%-30s%u", "session_created", GET_STAT(session_created)); cli_print(cli, "%-30s%u", "tunnel_timeout", GET_STAT(tunnel_timeout)); cli_print(cli, "%-30s%u", "session_timeout", GET_STAT(session_timeout)); cli_print(cli, "%-30s%u", "radius_timeout", GET_STAT(radius_timeout)); cli_print(cli, "%-30s%u", "radius_overflow", GET_STAT(radius_overflow)); cli_print(cli, "%-30s%u", "tunnel_overflow", GET_STAT(tunnel_overflow)); cli_print(cli, "%-30s%u", "session_overflow", GET_STAT(session_overflow)); cli_print(cli, "%-30s%u", "ip_allocated", GET_STAT(ip_allocated)); cli_print(cli, "%-30s%u", "ip_freed", GET_STAT(ip_freed)); cli_print(cli, "%-30s%u", "cluster_forwarded", GET_STAT(c_forwarded)); cli_print(cli, "%-30s%u", "recv_forward", GET_STAT(recv_forward)); cli_print(cli, "%-30s%u", "select_called", GET_STAT(select_called)); cli_print(cli, "%-30s%u", "multi_read_used", GET_STAT(multi_read_used)); cli_print(cli, "%-30s%u", "multi_read_exceeded", GET_STAT(multi_read_exceeded)); #ifdef STAT_CALLS cli_print(cli, "\n%-30s%-10s", "Counter", "Value"); cli_print(cli, "-----------------------------------------"); cli_print(cli, "%-30s%u", "call_processtun", GET_STAT(call_processtun)); cli_print(cli, "%-30s%u", "call_processipout", GET_STAT(call_processipout)); cli_print(cli, "%-30s%u", "call_processipv6out", GET_STAT(call_processipv6out)); cli_print(cli, "%-30s%u", "call_processudp", GET_STAT(call_processudp)); cli_print(cli, "%-30s%u", "call_processpap", GET_STAT(call_processpap)); cli_print(cli, "%-30s%u", "call_processchap", GET_STAT(call_processchap)); cli_print(cli, "%-30s%u", "call_processlcp", GET_STAT(call_processlcp)); cli_print(cli, "%-30s%u", "call_processipcp", GET_STAT(call_processipcp)); cli_print(cli, "%-30s%u", "call_processipv6cp", GET_STAT(call_processipv6cp)); cli_print(cli, "%-30s%u", "call_processipin", GET_STAT(call_processipin)); cli_print(cli, "%-30s%u", "call_processipv6in", GET_STAT(call_processipv6in)); cli_print(cli, "%-30s%u", "call_processccp", GET_STAT(call_processccp)); cli_print(cli, "%-30s%u", "call_processrad", GET_STAT(call_processrad)); cli_print(cli, "%-30s%u", "call_sendarp", GET_STAT(call_sendarp)); cli_print(cli, "%-30s%u", "call_sendipcp", GET_STAT(call_sendipcp)); cli_print(cli, "%-30s%u", "call_sendchap", GET_STAT(call_sendchap)); cli_print(cli, "%-30s%u", "call_sessionbyip", GET_STAT(call_sessionbyip)); cli_print(cli, "%-30s%u", "call_sessionbyipv6", GET_STAT(call_sessionbyipv6)); cli_print(cli, "%-30s%u", "call_sessionbyuser", GET_STAT(call_sessionbyuser)); cli_print(cli, "%-30s%u", "call_tunnelsend", GET_STAT(call_tunnelsend)); cli_print(cli, "%-30s%u", "call_tunnelkill", GET_STAT(call_tunnelkill)); cli_print(cli, "%-30s%u", "call_tunnelshutdown", GET_STAT(call_tunnelshutdown)); cli_print(cli, "%-30s%u", "call_sessionkill", GET_STAT(call_sessionkill)); cli_print(cli, "%-30s%u", "call_sessionshutdown", GET_STAT(call_sessionshutdown)); cli_print(cli, "%-30s%u", "call_sessionsetup", GET_STAT(call_sessionsetup)); cli_print(cli, "%-30s%u", "call_assign_ip_address", GET_STAT(call_assign_ip_address)); cli_print(cli, "%-30s%u", "call_free_ip_address", GET_STAT(call_free_ip_address)); cli_print(cli, "%-30s%u", "call_dump_acct_info", GET_STAT(call_dump_acct_info)); cli_print(cli, "%-30s%u", "call_radiussend", GET_STAT(call_radiussend)); cli_print(cli, "%-30s%u", "call_radiusretry", GET_STAT(call_radiusretry)); cli_print(cli, "%-30s%u", "call_random_data", GET_STAT(call_random_data)); #endif /* STAT_CALLS */ { time_t l = GET_STAT(last_reset); char *t = ctime(&l); char *p = strchr(t, '\n'); if (p) *p = 0; cli_print(cli, " "); cli_print(cli, "Last counter reset %s", t); } return CLI_OK; } static int cmd_clear_counters(struct cli_def *cli, const char *command, char **argv, int argc) { if (CLI_HELP_REQUESTED) return CLI_HELP_NO_ARGS; memset(_statistics, 0, sizeof(struct Tstats)); SET_STAT(last_reset, time(NULL)); cli_print(cli, "Counters cleared"); return CLI_OK; } #endif /* STATISTICS */ static int cmd_show_version(struct cli_def *cli, const char *command, char **argv, int argc) { if (CLI_HELP_REQUESTED) return CLI_HELP_NO_ARGS; cli_print(cli, "L2TPNS %s", VERSION); return CLI_OK; } static int cmd_show_pool(struct cli_def *cli, const char *command, char **argv, int argc) { int i; int used = 0, free = 0, show_all = 0; if (!config->cluster_iam_master) { cli_print(cli, "Can't do this on a slave. Do it on %s", fmtaddr(config->cluster_master_address, 0)); return CLI_OK; } if (CLI_HELP_REQUESTED) { if (argc > 1) return cli_arg_help(cli, 1, NULL); return cli_arg_help(cli, 1, "all", "Show all pool addresses, including unused", NULL); } if (argc > 0 && strcmp(argv[0], "all") == 0) show_all = 1; time(&time_now); cli_print(cli, "%-15s %4s %8s %s", "IP Address", "Used", "Session", "User"); for (i = 0; i < MAXIPPOOL; i++) { if (!ip_address_pool[i].address) continue; if (ip_address_pool[i].assigned) { cli_print(cli, "%-15s\tY %8d %s", fmtaddr(htonl(ip_address_pool[i].address), 0), ip_address_pool[i].session, session[ip_address_pool[i].session].user); used++; } else { if (ip_address_pool[i].last) cli_print(cli, "%-15s\tN %8s [%s] %ds", fmtaddr(htonl(ip_address_pool[i].address), 0), "", ip_address_pool[i].user, (int) time_now - ip_address_pool[i].last); else if (show_all) cli_print(cli, "%-15s\tN", fmtaddr(htonl(ip_address_pool[i].address), 0)); free++; } } if (!show_all) cli_print(cli, "(Not displaying unused addresses)"); cli_print(cli, "\r\nFree: %d\r\nUsed: %d", free, used); return CLI_OK; } static FILE *save_config_fh = 0; static void print_save_config(struct cli_def *cli, const char *string) { if (save_config_fh) fprintf(save_config_fh, "%s\n", string); } static int cmd_write_memory(struct cli_def *cli, const char *command, char **argv, int argc) { if (CLI_HELP_REQUESTED) return CLI_HELP_NO_ARGS; if ((save_config_fh = fopen(config->config_file, "w"))) { cli_print(cli, "Writing configuration"); cli_print_callback(cli, print_save_config); cmd_show_run(cli, command, argv, argc); cli_print_callback(cli, NULL); fclose(save_config_fh); save_config_fh = 0; } else { cli_error(cli, "Error writing configuration: %s", strerror(errno)); } return CLI_OK; } static char const *show_access_list_rule(int extended, ip_filter_rulet *rule); static int cmd_show_run(struct cli_def *cli, const char *command, char **argv, int argc) { int i; char ipv6addr[INET6_ADDRSTRLEN]; if (CLI_HELP_REQUESTED) return CLI_HELP_NO_ARGS; cli_print(cli, "# Current configuration:"); for (i = 0; config_values[i].key; i++) { void *value = ((void *)config) + config_values[i].offset; if (config_values[i].type == STRING) cli_print(cli, "set %s \"%.*s\"", config_values[i].key, config_values[i].size, (char *) value); else if (config_values[i].type == IPv4) cli_print(cli, "set %s %s", config_values[i].key, fmtaddr(*(in_addr_t *) value, 0)); else if (config_values[i].type == IPv6) cli_print(cli, "set %s %s", config_values[i].key, inet_ntop(AF_INET6, value, ipv6addr, INET6_ADDRSTRLEN)); else if (config_values[i].type == SHORT) cli_print(cli, "set %s %hu", config_values[i].key, *(short *) value); else if (config_values[i].type == BOOL) cli_print(cli, "set %s %s", config_values[i].key, (*(int *) value) ? "yes" : "no"); else if (config_values[i].type == INT) cli_print(cli, "set %s %d", config_values[i].key, *(int *) value); else if (config_values[i].type == UNSIGNED_LONG) cli_print(cli, "set %s %lu", config_values[i].key, *(unsigned long *) value); } cli_print(cli, "# Plugins"); for (i = 0; i < MAXPLUGINS; i++) { if (*config->plugins[i]) { cli_print(cli, "load plugin \"%s\"", config->plugins[i]); } } #ifdef BGP if (config->as_number) { int k; int h; cli_print(cli, "# BGP"); cli_print(cli, "router bgp %u", config->as_number); for (i = 0; i < BGP_NUM_PEERS; i++) { if (!config->neighbour[i].name[0]) continue; cli_print(cli, " neighbour %s remote-as %u", config->neighbour[i].name, config->neighbour[i].as); k = config->neighbour[i].keepalive; h = config->neighbour[i].hold; if (k == -1) { if (h == -1) continue; k = BGP_KEEPALIVE_TIME; } if (h == -1) h = BGP_HOLD_TIME; cli_print(cli, " neighbour %s timers %d %d", config->neighbour[i].name, k, h); if (config->neighbour[i].update_source.s_addr != INADDR_ANY) cli_print(cli, " neighbour %s update-source %s", config->neighbour[i].name, inet_ntoa(config->neighbour[i].update_source)); } } #endif cli_print(cli, "# Filters"); for (i = 0; i < MAXFILTER; i++) { ip_filter_rulet *rules; if (!*ip_filters[i].name) continue; cli_print(cli, "ip access-list %s %s", ip_filters[i].extended ? "extended" : "standard", ip_filters[i].name); rules = ip_filters[i].rules; while (rules->action) cli_print(cli, "%s", show_access_list_rule(ip_filters[i].extended, rules++)); } cli_print(cli, "# end"); return CLI_OK; } static int cmd_show_radius(struct cli_def *cli, const char *command, char **argv, int argc) { int i, free = 0, used = 0, show_all = 0; char *states[] = { "NULL", "CHAP", "AUTH", "IPCP", "START", "STOP", "INTRM", "WAIT", }; if (CLI_HELP_REQUESTED) { if (argc > 1) return cli_arg_help(cli, 1, NULL); return cli_arg_help(cli, 1, "all", "Show all RADIUS sessions, including unused", NULL); } cli_print(cli, "%6s%7s%5s%6s%9s%9s%4s", "ID", "Radius", "Sock", "State", "Session", "Retry", "Try"); time(&time_now); if (argc > 0 && strcmp(argv[0], "all") == 0) show_all = 1; for (i = 1; i < MAXRADIUS; i++) { if (radius[i].state == RADIUSNULL) free++; else used++; if (!show_all && radius[i].state == RADIUSNULL) continue; cli_print(cli, "%6d%7d%5d%6s%9d%9u%4d", i, i >> RADIUS_SHIFT, i & RADIUS_MASK, states[radius[i].state], radius[i].session, radius[i].retry, radius[i].try); } cli_print(cli, "\r\nFree: %d\r\nUsed: %d", free, used); return CLI_OK; } static int cmd_show_plugins(struct cli_def *cli, const char *command, char **argv, int argc) { int i; if (CLI_HELP_REQUESTED) return CLI_HELP_NO_ARGS; cli_print(cli, "Plugins currently loaded:"); for (i = 0; i < MAXPLUGINS; i++) if (*config->plugins[i]) cli_print(cli, " %s", config->plugins[i]); return CLI_OK; } static int cmd_show_throttle(struct cli_def *cli, const char *command, char **argv, int argc) { int i; if (CLI_HELP_REQUESTED) return CLI_HELP_NO_ARGS; cli_print(cli, "%5s %4s %-32s %7s %6s %6s %6s", "SID", "TID", "Username", "Rate In", "Out", "TBFI", "TBFO"); for (i = 0; i < MAXSESSION; i++) { if (session[i].throttle_in || session[i].throttle_out) cli_print(cli, "%5d %4d %-32s %6d %6d %6d %6d", i, session[i].tunnel, session[i].user, session[i].throttle_in, session[i].throttle_out, session[i].tbf_in, session[i].tbf_out); } return CLI_OK; } static int cmd_show_banana(struct cli_def *cli, const char *command, char **argv, int argc) { if (CLI_HELP_REQUESTED) return CLI_HELP_NO_ARGS; cli_print(cli, " _\n" "//\\\n" "V \\\n" " \\ \\_\n" " \\,'.`-.\n" " |\\ `. `.\n" " ( \\ `. `-. _,.-:\\\n" " \\ \\ `. `-._ __..--' ,-';/\n" " \\ `. `-. `-..___..---' _.--' ,'/\n" " `. `. `-._ __..--' ,' /\n" " `. `-_ ``--..'' _.-' ,'\n" " `-_ `-.___ __,--' ,'\n" " `-.__ `----\"\"\" __.-'\n" "hh `--..____..--'"); return CLI_OK; } static int cmd_drop_user(struct cli_def *cli, const char *command, char **argv, int argc) { int i; sessionidt s; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, argc > 1, "USER", "Username of session to drop", NULL); if (!config->cluster_iam_master) { cli_error(cli, "Can't do this on a slave. Do it on %s", fmtaddr(config->cluster_master_address, 0)); return CLI_OK; } if (!argc) { cli_error(cli, "Specify a user to drop"); return CLI_OK; } for (i = 0; i < argc; i++) { if (!(s = sessionbyuser(argv[i]))) { cli_error(cli, "User %s is not connected", argv[i]); continue; } if (session[s].ip && session[s].opened && !session[s].die) { cli_print(cli, "Dropping user %s", session[s].user); cli_session_actions[s].action |= CLI_SESS_KILL; } } return CLI_OK; } static int cmd_drop_tunnel(struct cli_def *cli, const char *command, char **argv, int argc) { int i; tunnelidt t; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, argc > 1, "<1-%d>", MAXTUNNEL-1, "Tunnel id to drop", NULL); if (!config->cluster_iam_master) { cli_error(cli, "Can't do this on a slave. Do it on %s", fmtaddr(config->cluster_master_address, 0)); return CLI_OK; } if (!argc) { cli_error(cli, "Specify a tunnel to drop"); return CLI_OK; } for (i = 0; i < argc; i++) { if ((t = atol(argv[i])) <= 0 || (t >= MAXTUNNEL)) { cli_error(cli, "Invalid tunnel ID (1-%d)", MAXTUNNEL-1); continue; } if (!tunnel[t].ip) { cli_error(cli, "Tunnel %d is not connected", t); continue; } if (tunnel[t].die) { cli_error(cli, "Tunnel %d is already being shut down", t); continue; } cli_print(cli, "Tunnel %d shut down (%s)", t, tunnel[t].hostname); cli_tunnel_actions[t].action |= CLI_TUN_KILL; } return CLI_OK; } static int cmd_drop_session(struct cli_def *cli, const char *command, char **argv, int argc) { int i; sessionidt s; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, argc > 1, "<1-%d>", MAXSESSION-1, "Session id to drop", NULL); if (!config->cluster_iam_master) { cli_error(cli, "Can't do this on a slave. Do it on %s", fmtaddr(config->cluster_master_address, 0)); return CLI_OK; } if (!argc) { cli_error(cli, "Specify a session id to drop"); return CLI_OK; } for (i = 0; i < argc; i++) { if ((s = atol(argv[i])) <= 0 || (s > MAXSESSION)) { cli_error(cli, "Invalid session ID (1-%d)", MAXSESSION-1); continue; } if (session[s].ip && session[s].opened && !session[s].die) { cli_print(cli, "Dropping session %d", s); cli_session_actions[s].action |= CLI_SESS_KILL; } else if (session[s].forwardtosession && session[s].opened && !session[s].die) { cli_print(cli, "Dropping session %d", s); cli_session_actions[s].action |= CLI_SESS_KILL; } else { cli_error(cli, "Session %d is not active.", s); } } return CLI_OK; } static int cmd_snoop(struct cli_def *cli, const char *command, char **argv, int argc) { in_addr_t ip; uint16_t port; sessionidt s; if (CLI_HELP_REQUESTED) { switch (argc) { case 1: return cli_arg_help(cli, 0, "USER", "Username of session to snoop", NULL); case 2: return cli_arg_help(cli, 0, "A.B.C.D", "IP address of snoop destination", NULL); case 3: return cli_arg_help(cli, 0, "N", "Port of snoop destination", NULL); case 4: if (!argv[3][1]) return cli_arg_help(cli, 1, NULL); default: return CLI_OK; } } if (!config->cluster_iam_master) { cli_error(cli, "Can't do this on a slave. Do it on %s", fmtaddr(config->cluster_master_address, 0)); return CLI_OK; } if (argc < 3) { cli_error(cli, "Specify username, ip and port"); return CLI_OK; } if (!(s = sessionbyuser(argv[0]))) { cli_error(cli, "User %s is not connected", argv[0]); return CLI_OK; } ip = inet_addr(argv[1]); if (!ip || ip == INADDR_NONE) { cli_error(cli, "Cannot parse IP \"%s\"", argv[1]); return CLI_OK; } port = atoi(argv[2]); if (!port) { cli_error(cli, "Invalid port %s", argv[2]); return CLI_OK; } cli_print(cli, "Snooping user %s to %s:%d", argv[0], fmtaddr(ip, 0), port); cli_session_actions[s].snoop_ip = ip; cli_session_actions[s].snoop_port = port; cli_session_actions[s].action |= CLI_SESS_SNOOP; return CLI_OK; } static int cmd_no_snoop(struct cli_def *cli, const char *command, char **argv, int argc) { int i; sessionidt s; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, argc > 1, "USER", "Username of session to unsnoop", NULL); if (!config->cluster_iam_master) { cli_error(cli, "Can't do this on a slave. Do it on %s", fmtaddr(config->cluster_master_address, 0)); return CLI_OK; } if (!argc) { cli_error(cli, "Specify a user to unsnoop"); return CLI_OK; } for (i = 0; i < argc; i++) { if (!(s = sessionbyuser(argv[i]))) { cli_error(cli, "User %s is not connected", argv[i]); continue; } cli_print(cli, "Not snooping user %s", argv[i]); cli_session_actions[s].action |= CLI_SESS_NOSNOOP; } return CLI_OK; } static int cmd_throttle(struct cli_def *cli, const char *command, char **argv, int argc) { int rate_in = 0; int rate_out = 0; sessionidt s; /* throttle USER - throttle in/out to default rate throttle USER RATE - throttle in/out to default rate throttle USER in RATE - throttle input only throttle USER out RATE - throttle output only throttle USER in RATE out RATE - throttle both */ if (CLI_HELP_REQUESTED) { switch (argc) { case 1: return cli_arg_help(cli, 0, "USER", "Username of session to throttle", NULL); case 2: return cli_arg_help(cli, 1, "RATE", "Rate in kbps (in and out)", "in", "Select incoming rate", "out", "Select outgoing rate", NULL); case 4: return cli_arg_help(cli, 1, "in", "Select incoming rate", "out", "Select outgoing rate", NULL); case 3: if (isdigit(argv[1][0])) return cli_arg_help(cli, 1, NULL); case 5: return cli_arg_help(cli, 0, "RATE", "Rate in kbps", NULL); default: return cli_arg_help(cli, argc > 1, NULL); } } if (!config->cluster_iam_master) { cli_error(cli, "Can't do this on a slave. Do it on %s", fmtaddr(config->cluster_master_address, 0)); return CLI_OK; } if (argc == 0) { cli_error(cli, "Specify a user to throttle"); return CLI_OK; } if (!(s = sessionbyuser(argv[0]))) { cli_error(cli, "User %s is not connected", argv[0]); return CLI_OK; } if (argc == 1) { rate_in = rate_out = config->rl_rate; } else if (argc == 2) { rate_in = rate_out = atoi(argv[1]); if (rate_in < 1) { cli_error(cli, "Invalid rate \"%s\"", argv[1]); return CLI_OK; } } else if (argc == 3 || argc == 5) { int i; for (i = 1; i < argc - 1; i += 2) { int r = 0; if (MATCH("in", argv[i])) r = rate_in = atoi(argv[i+1]); else if (MATCH("out", argv[i])) r = rate_out = atoi(argv[i+1]); if (r < 1) { cli_error(cli, "Invalid rate specification \"%s %s\"", argv[i], argv[i+1]); return CLI_OK; } } } else { cli_error(cli, "Invalid arguments"); return CLI_OK; } if ((rate_in && session[s].throttle_in) || (rate_out && session[s].throttle_out)) { cli_error(cli, "User %s already throttled, unthrottle first", argv[0]); return CLI_OK; } cli_session_actions[s].throttle_in = cli_session_actions[s].throttle_out = -1; if (rate_in && session[s].throttle_in != rate_in) cli_session_actions[s].throttle_in = rate_in; if (rate_out && session[s].throttle_out != rate_out) cli_session_actions[s].throttle_out = rate_out; if (cli_session_actions[s].throttle_in == -1 && cli_session_actions[s].throttle_out == -1) { cli_error(cli, "User %s already throttled at this rate", argv[0]); return CLI_OK; } cli_print(cli, "Throttling user %s", argv[0]); cli_session_actions[s].action |= CLI_SESS_THROTTLE; return CLI_OK; } static int cmd_no_throttle(struct cli_def *cli, const char *command, char **argv, int argc) { int i; sessionidt s; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, argc > 1, "USER", "Username of session to unthrottle", NULL); if (!config->cluster_iam_master) { cli_error(cli, "Can't do this on a slave. Do it on %s", fmtaddr(config->cluster_master_address, 0)); return CLI_OK; } if (!argc) { cli_error(cli, "Specify a user to unthrottle"); return CLI_OK; } for (i = 0; i < argc; i++) { if (!(s = sessionbyuser(argv[i]))) { cli_error(cli, "User %s is not connected", argv[i]); continue; } if (session[s].throttle_in || session[s].throttle_out) { cli_print(cli, "Unthrottling user %s", argv[i]); cli_session_actions[s].action |= CLI_SESS_NOTHROTTLE; } else { cli_error(cli, "User %s not throttled", argv[i]); } } return CLI_OK; } static int cmd_debug(struct cli_def *cli, const char *command, char **argv, int argc) { int i; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, 1, "all", "Enable debugging for all except \"data\"", "critical", "", // FIXME: add descriptions "error", "", "warning", "", "info", "", "calls", "", "data", "", NULL); if (!argc) { char *p = (char *) &debug_flags; for (i = 0; i < sizeof(debug_flags); i++) { if (p[i]) { cli_print(cli, "Currently debugging:%s%s%s%s%s%s", (debug_flags.critical) ? " critical" : "", (debug_flags.error) ? " error" : "", (debug_flags.warning) ? " warning" : "", (debug_flags.info) ? " info" : "", (debug_flags.calls) ? " calls" : "", (debug_flags.data) ? " data" : ""); return CLI_OK; } } cli_print(cli, "Debugging off"); return CLI_OK; } for (i = 0; i < argc; i++) { int len = strlen(argv[i]); if (argv[i][0] == 'c' && len < 2) len = 2; /* distinguish [cr]itical from [ca]lls */ if (!strncmp("critical", argv[i], len)) { debug_flags.critical = 1; continue; } if (!strncmp("error", argv[i], len)) { debug_flags.error = 1; continue; } if (!strncmp("warning", argv[i], len)) { debug_flags.warning = 1; continue; } if (!strncmp("info", argv[i], len)) { debug_flags.info = 1; continue; } if (!strncmp("calls", argv[i], len)) { debug_flags.calls = 1; continue; } if (!strncmp("data", argv[i], len)) { debug_flags.data = 1; continue; } if (!strncmp("all", argv[i], len)) { memset(&debug_flags, 1, sizeof(debug_flags)); debug_flags.data = 0; continue; } cli_error(cli, "Invalid debugging flag \"%s\"", argv[i]); } return CLI_OK; } static int cmd_no_debug(struct cli_def *cli, const char *command, char **argv, int argc) { int i; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, 1, "all", "Disable all debugging", "critical", "", // FIXME: add descriptions "error", "", "warning", "", "info", "", "calls", "", "data", "", NULL); if (!argc) { memset(&debug_flags, 0, sizeof(debug_flags)); return CLI_OK; } for (i = 0; i < argc; i++) { int len = strlen(argv[i]); if (argv[i][0] == 'c' && len < 2) len = 2; /* distinguish [cr]itical from [ca]lls */ if (!strncmp("critical", argv[i], len)) { debug_flags.critical = 0; continue; } if (!strncmp("error", argv[i], len)) { debug_flags.error = 0; continue; } if (!strncmp("warning", argv[i], len)) { debug_flags.warning = 0; continue; } if (!strncmp("info", argv[i], len)) { debug_flags.info = 0; continue; } if (!strncmp("calls", argv[i], len)) { debug_flags.calls = 0; continue; } if (!strncmp("data", argv[i], len)) { debug_flags.data = 0; continue; } if (!strncmp("all", argv[i], len)) { memset(&debug_flags, 0, sizeof(debug_flags)); continue; } cli_error(cli, "Invalid debugging flag \"%s\"", argv[i]); } return CLI_OK; } static int cmd_load_plugin(struct cli_def *cli, const char *command, char **argv, int argc) { int i, firstfree = 0; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, argc > 1, "PLUGIN", "Name of plugin to load", NULL); if (argc != 1) { cli_error(cli, "Specify a plugin to load"); return CLI_OK; } for (i = 0; i < MAXPLUGINS; i++) { if (!*config->plugins[i] && !firstfree) firstfree = i; if (strcmp(config->plugins[i], argv[0]) == 0) { cli_error(cli, "Plugin is already loaded"); return CLI_OK; } } if (firstfree) { strncpy(config->plugins[firstfree], argv[0], sizeof(config->plugins[firstfree]) - 1); config->reload_config = 1; cli_print(cli, "Loading plugin %s", argv[0]); } return CLI_OK; } static int cmd_remove_plugin(struct cli_def *cli, const char *command, char **argv, int argc) { int i; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, argc > 1, "PLUGIN", "Name of plugin to unload", NULL); if (argc != 1) { cli_error(cli, "Specify a plugin to remove"); return CLI_OK; } for (i = 0; i < MAXPLUGINS; i++) { if (strcmp(config->plugins[i], argv[0]) == 0) { config->reload_config = 1; memset(config->plugins[i], 0, sizeof(config->plugins[i])); return CLI_OK; } } cli_error(cli, "Plugin is not loaded"); return CLI_OK; } static char *duration(time_t secs) { static char *buf = NULL; int p = 0; if (!buf) buf = calloc(64, 1); if (secs >= 86400) { int days = secs / 86400; p = sprintf(buf, "%d day%s, ", days, days > 1 ? "s" : ""); secs %= 86400; } if (secs >= 3600) { int mins = secs / 60; int hrs = mins / 60; mins %= 60; sprintf(buf + p, "%d:%02d", hrs, mins); } else if (secs >= 60) { int mins = secs / 60; sprintf(buf + p, "%d min%s", mins, mins > 1 ? "s" : ""); } else sprintf(buf, "%ld sec%s", secs, secs > 1 ? "s" : ""); return buf; } static int cmd_uptime(struct cli_def *cli, const char *command, char **argv, int argc) { FILE *fh; char buf[100], *p = buf, *loads[3]; int i, num_sessions = 0; if (CLI_HELP_REQUESTED) return CLI_HELP_NO_ARGS; fh = fopen("/proc/loadavg", "r"); p = fgets(buf, 100, fh); fclose(fh); for (i = 0; i < 3; i++) loads[i] = strdup(strsep(&p, " ")); time(&time_now); strftime(buf, 99, "%H:%M:%S", localtime(&time_now)); for (i = 1; i < MAXSESSION; i++) if (session[i].opened) num_sessions++; cli_print(cli, "%s up %s, %d users, load average: %s, %s, %s", buf, duration(time_now - config->start_time), num_sessions, loads[0], loads[1], loads[2] ); for (i = 0; i < 3; i++) if (loads[i]) free(loads[i]); cli_print(cli, "Bandwidth: %s", config->bandwidth); return CLI_OK; } static int cmd_set(struct cli_def *cli, const char *command, char **argv, int argc) { int i; if (CLI_HELP_REQUESTED) { switch (argc) { case 1: { int len = strlen(argv[0])-1; for (i = 0; config_values[i].key; i++) if (!len || !strncmp(config_values[i].key, argv[0], len)) cli_error(cli, " %s", config_values[i].key); } return CLI_OK; case 2: return cli_arg_help(cli, 0, "VALUE", "Value for variable", NULL); case 3: if (!argv[2][1]) return cli_arg_help(cli, 1, NULL); default: return CLI_OK; } } if (argc != 2) { cli_error(cli, "Specify variable and value"); return CLI_OK; } for (i = 0; config_values[i].key; i++) { void *value = ((void *) config) + config_values[i].offset; if (strcmp(config_values[i].key, argv[0]) == 0) { // Found a value to set cli_print(cli, "Setting \"%s\" to \"%s\"", argv[0], argv[1]); switch (config_values[i].type) { case STRING: snprintf((char *) value, config_values[i].size, "%s", argv[1]); break; case INT: *(int *) value = atoi(argv[1]); break; case UNSIGNED_LONG: *(unsigned long *) value = atol(argv[1]); break; case SHORT: *(short *) value = atoi(argv[1]); break; case IPv4: *(in_addr_t *) value = inet_addr(argv[1]); break; case IPv6: inet_pton(AF_INET6, argv[1], value); break; case BOOL: if (strcasecmp(argv[1], "yes") == 0 || strcasecmp(argv[1], "true") == 0 || strcasecmp(argv[1], "1") == 0) *(int *) value = 1; else *(int *) value = 0; break; default: cli_error(cli, "Unknown variable type"); break; } config->reload_config = 1; return CLI_OK; } } cli_error(cli, "Unknown variable \"%s\"", argv[0]); return CLI_OK; } int regular_stuff(struct cli_def *cli) { #ifdef RINGBUFFER int out = 0; int i; for (i = debug_rb_tail; i != ringbuffer->tail; i = (i + 1) % RINGBUFFER_SIZE) { char *m = ringbuffer->buffer[i].message; char *p; int show = 0; if (!*m) continue; switch (ringbuffer->buffer[i].level) { case 0: show = debug_flags.critical; break; case 1: show = debug_flags.error; break; case 2: show = debug_flags.warning; break; case 3: show = debug_flags.info; break; case 4: show = debug_flags.calls; break; case 5: show = debug_flags.data; break; } if (!show) continue; if (!(p = strchr(m, '\n'))) p = m + strlen(m); cli_error(cli, "\r%s-%u-%u %.*s", debug_levels[(int)ringbuffer->buffer[i].level], ringbuffer->buffer[i].tunnel, ringbuffer->buffer[i].session, (int) (p - m), m); out++; } debug_rb_tail = ringbuffer->tail; if (out) cli_reprompt(cli); #endif return CLI_OK; } #ifdef BGP static int cmd_router_bgp(struct cli_def *cli, const char *command, char **argv, int argc) { int as; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, argc > 1, "<1-65535>", "Autonomous system number", NULL); if (argc != 1 || (as = atoi(argv[0])) < 1 || as > 65535) { cli_error(cli, "Invalid autonomous system number"); return CLI_OK; } if (bgp_configured && as != config->as_number) { cli_error(cli, "Can't change local AS on a running system"); return CLI_OK; } config->as_number = as; cli_set_configmode(cli, MODE_CONFIG_BGP, "router"); return CLI_OK; } static int find_bgp_neighbour(char const *name) { int i; int new = -1; struct hostent *h; in_addr_t addrs[4] = { 0 }; char **a; if (!(h = gethostbyname(name)) || h->h_addrtype != AF_INET) return -2; for (i = 0; i < sizeof(addrs) / sizeof(*addrs) && h->h_addr_list[i]; i++) memcpy(&addrs[i], h->h_addr_list[i], sizeof(*addrs)); for (i = 0; i < BGP_NUM_PEERS; i++) { if (!config->neighbour[i].name[0]) { if (new == -1) new = i; continue; } if (!strcmp(name, config->neighbour[i].name)) return i; if (!(h = gethostbyname(config->neighbour[i].name)) || h->h_addrtype != AF_INET) continue; for (a = h->h_addr_list; *a; a++) { int j; for (j = 0; j < sizeof(addrs) / sizeof(*addrs) && addrs[j]; j++) if (!memcmp(&addrs[j], *a, sizeof(*addrs))) return i; } } return new; } static int cmd_router_bgp_neighbour(struct cli_def *cli, const char *command, char **argv, int argc) { int i; int keepalive; int hold; if (CLI_HELP_REQUESTED) { switch (argc) { case 1: return cli_arg_help(cli, 0, "A.B.C.D", "BGP neighbour address", "NAME", "BGP neighbour name", NULL); case 2: return cli_arg_help(cli, 0, "remote-as", "Set remote autonomous system number", "timers", "Set timers", "update-source", "Set source address to use for the BGP session", NULL); default: if (MATCH("remote-as", argv[1])) return cli_arg_help(cli, argv[2][1], "<1-65535>", "Autonomous system number", NULL); if (MATCH("timers", argv[1])) { if (argc == 3) return cli_arg_help(cli, 0, "<1-65535>", "Keepalive time", NULL); if (argc == 4) return cli_arg_help(cli, argv[3][1], "<3-65535>", "Hold time", NULL); if (argc == 5 && !argv[4][1]) return cli_arg_help(cli, 1, NULL); } if (MATCH("update-source", argv[1])) return cli_arg_help(cli, argc > 3, "A.B.C.D", "Source IP address", NULL); return CLI_OK; } } if (argc < 3) { cli_error(cli, "Invalid arguments"); return CLI_OK; } if ((i = find_bgp_neighbour(argv[0])) == -2) { cli_error(cli, "Invalid neighbour"); return CLI_OK; } if (i == -1) { cli_error(cli, "Too many neighbours (max %d)", BGP_NUM_PEERS); return CLI_OK; } if (MATCH("remote-as", argv[1])) { int as = atoi(argv[2]); if (as < 0 || as > 65535) { cli_error(cli, "Invalid autonomous system number"); return CLI_OK; } if (!config->neighbour[i].name[0]) { snprintf(config->neighbour[i].name, sizeof(config->neighbour[i].name), "%s", argv[0]); config->neighbour[i].keepalive = -1; config->neighbour[i].hold = -1; config->neighbour[i].update_source.s_addr = INADDR_ANY; } config->neighbour[i].as = as; return CLI_OK; } if (MATCH("update-source", argv[1])) { struct in_addr addr; if (!config->neighbour[i].name[0]) { cli_error(cli, "Specify remote-as first"); return CLI_OK; } if (!inet_aton(argv[2], &addr)) { cli_error(cli, "Cannot parse IP \"%s\"", argv[2]); return CLI_OK; } config->neighbour[i].update_source = addr; return CLI_OK; } if (argc != 4 || !MATCH("timers", argv[1])) { cli_error(cli, "Invalid arguments"); return CLI_OK; } if (!config->neighbour[i].name[0]) { cli_error(cli, "Specify remote-as first"); return CLI_OK; } keepalive = atoi(argv[2]); hold = atoi(argv[3]); if (keepalive < 1 || keepalive > 65535) { cli_error(cli, "Invalid keepalive time"); return CLI_OK; } if (hold < 3 || hold > 65535) { cli_error(cli, "Invalid hold time"); return CLI_OK; } if (keepalive == BGP_KEEPALIVE_TIME) keepalive = -1; // using default value if (hold == BGP_HOLD_TIME) hold = -1; config->neighbour[i].keepalive = keepalive; config->neighbour[i].hold = hold; return CLI_OK; } static int cmd_router_bgp_no_neighbour(struct cli_def *cli, const char *command, char **argv, int argc) { int i; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, argc > 0, "A.B.C.D", "BGP neighbour address", "NAME", "BGP neighbour name", NULL); if (argc != 1) { cli_error(cli, "Specify a BGP neighbour"); return CLI_OK; } if ((i = find_bgp_neighbour(argv[0])) == -2) { cli_error(cli, "Invalid neighbour"); return CLI_OK; } if (i < 0 || !config->neighbour[i].name[0]) { cli_error(cli, "Neighbour %s not configured", argv[0]); return CLI_OK; } memset(&config->neighbour[i], 0, sizeof(config->neighbour[i])); return CLI_OK; } static int cmd_show_bgp(struct cli_def *cli, const char *command, char **argv, int argc) { int i; int hdr = 0; char *addr; if (!bgp_configured) return CLI_OK; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, 1, "A.B.C.D", "BGP neighbour address", "NAME", "BGP neighbour name", NULL); cli_print(cli, "BGPv%d router identifier %s, local AS number %d", BGP_VERSION, fmtaddr(my_address, 0), (int) config->as_number); time(&time_now); for (i = 0; i < BGP_NUM_PEERS; i++) { if (!*bgp_peers[i].name) continue; addr = fmtaddr(bgp_peers[i].addr, 0); if (argc && strcmp(addr, argv[0]) && strncmp(bgp_peers[i].name, argv[0], strlen(argv[0]))) continue; if (!hdr++) { cli_print(cli, " "); cli_print(cli, "Peer AS Address " "State Retries Retry in Route Pend Timers"); cli_print(cli, "------------------ ----- --------------- " "----------- ------- -------- ----- ---- ---------"); } cli_print(cli, "%-18.18s %5d %15s %-11s %7d %7lds %5s %4s %4d %4d", bgp_peers[i].name, bgp_peers[i].as, addr, bgp_state_str(bgp_peers[i].state), bgp_peers[i].retry_count, bgp_peers[i].retry_time ? bgp_peers[i].retry_time - time_now : 0, bgp_peers[i].routing ? "yes" : "no", bgp_peers[i].update_routes ? "yes" : "no", bgp_peers[i].keepalive, bgp_peers[i].hold); } return CLI_OK; } static int cmd_suspend_bgp(struct cli_def *cli, const char *command, char **argv, int argc) { int i; char *addr; if (!bgp_configured) return CLI_OK; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, 1, "A.B.C.D", "BGP neighbour address", "NAME", "BGP neighbour name", NULL); for (i = 0; i < BGP_NUM_PEERS; i++) { if (bgp_peers[i].state != Established) continue; if (!bgp_peers[i].routing) continue; addr = fmtaddr(bgp_peers[i].addr, 0); if (argc && strcmp(addr, argv[0]) && strcmp(bgp_peers[i].name, argv[0])) continue; bgp_peers[i].cli_flag = BGP_CLI_SUSPEND; cli_print(cli, "Suspending peer %s", bgp_peers[i].name); } return CLI_OK; } static int cmd_no_suspend_bgp(struct cli_def *cli, const char *command, char **argv, int argc) { int i; char *addr; if (!bgp_configured) return CLI_OK; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, 1, "A.B.C.D", "BGP neighbour address", "NAME", "BGP neighbour name", NULL); for (i = 0; i < BGP_NUM_PEERS; i++) { if (bgp_peers[i].state != Established) continue; if (bgp_peers[i].routing) continue; addr = fmtaddr(bgp_peers[i].addr, 0); if (argc && strcmp(addr, argv[0]) && strncmp(bgp_peers[i].name, argv[0], strlen(argv[0]))) continue; bgp_peers[i].cli_flag = BGP_CLI_ENABLE; cli_print(cli, "Un-suspending peer %s", bgp_peers[i].name); } return CLI_OK; } static int cmd_restart_bgp(struct cli_def *cli, const char *command, char **argv, int argc) { int i; char *addr; if (!bgp_configured) return CLI_OK; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, 1, "A.B.C.D", "BGP neighbour address", "NAME", "BGP neighbour name", NULL); for (i = 0; i < BGP_NUM_PEERS; i++) { if (!*bgp_peers[i].name) continue; addr = fmtaddr(bgp_peers[i].addr, 0); if (argc && strcmp(addr, argv[0]) && strncmp(bgp_peers[i].name, argv[0], strlen(argv[0]))) continue; bgp_peers[i].cli_flag = BGP_CLI_RESTART; cli_print(cli, "Restarting peer %s", bgp_peers[i].name); } return CLI_OK; } #endif /* BGP*/ static int filt; static int access_list(struct cli_def *cli, char **argv, int argc, int add) { int extended; if (CLI_HELP_REQUESTED) { switch (argc) { case 1: return cli_arg_help(cli, 0, "standard", "Standard syntax", "extended", "Extended syntax", NULL); case 2: return cli_arg_help(cli, argv[1][1], "NAME", "Access-list name", NULL); default: if (argc == 3 && !argv[2][1]) return cli_arg_help(cli, 1, NULL); return CLI_OK; } } if (argc != 2) { cli_error(cli, "Specify access-list type and name"); return CLI_OK; } if (MATCH("standard", argv[0])) extended = 0; else if (MATCH("extended", argv[0])) extended = 1; else { cli_error(cli, "Invalid access-list type"); return CLI_OK; } if (strlen(argv[1]) > sizeof(ip_filters[0].name) - 1 || strspn(argv[1], "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-") != strlen(argv[1])) { cli_error(cli, "Invalid access-list name"); return CLI_OK; } filt = find_filter(argv[1], strlen(argv[1])); if (add) { if (filt < 0) { cli_error(cli, "Too many access-lists"); return CLI_OK; } // racy if (!*ip_filters[filt].name) { memset(&ip_filters[filt], 0, sizeof(ip_filters[filt])); strcpy(ip_filters[filt].name, argv[1]); ip_filters[filt].extended = extended; } else if (ip_filters[filt].extended != extended) { cli_error(cli, "Access-list is %s", ip_filters[filt].extended ? "extended" : "standard"); return CLI_OK; } cli_set_configmode(cli, MODE_CONFIG_NACL, extended ? "ext-nacl" : "std-nacl"); return CLI_OK; } if (filt < 0 || !*ip_filters[filt].name) { cli_error(cli, "Access-list not defined"); return CLI_OK; } // racy if (ip_filters[filt].used) { cli_error(cli, "Access-list in use"); return CLI_OK; } memset(&ip_filters[filt], 0, sizeof(ip_filters[filt])); return CLI_OK; } static int cmd_ip_access_list(struct cli_def *cli, const char *command, char **argv, int argc) { return access_list(cli, argv, argc, 1); } static int cmd_no_ip_access_list(struct cli_def *cli, const char *command, char **argv, int argc) { return access_list(cli, argv, argc, 0); } static int show_ip_wild(char *buf, in_addr_t ip, in_addr_t wild) { if (ip == INADDR_ANY && wild == INADDR_BROADCAST) return sprintf(buf, " any"); if (wild == INADDR_ANY) return sprintf(buf, " host %s", fmtaddr(ip, 0)); return sprintf(buf, " %s %s", fmtaddr(ip, 0), fmtaddr(wild, 1)); } static int show_ports(char *buf, ip_filter_portt *ports) { switch (ports->op) { case FILTER_PORT_OP_EQ: return sprintf(buf, " eq %u", ports->port); case FILTER_PORT_OP_NEQ: return sprintf(buf, " neq %u", ports->port); case FILTER_PORT_OP_GT: return sprintf(buf, " gt %u", ports->port); case FILTER_PORT_OP_LT: return sprintf(buf, " lt %u", ports->port); case FILTER_PORT_OP_RANGE: return sprintf(buf, " range %u %u", ports->port, ports->port2); } return 0; } static char const *show_access_list_rule(int extended, ip_filter_rulet *rule) { static char buf[256]; char *p = buf; p += sprintf(p, " %s", rule->action == FILTER_ACTION_PERMIT ? "permit" : "deny"); if (extended) { struct protoent *proto = getprotobynumber(rule->proto); p += sprintf(p, " %s", proto ? proto->p_name : "ERR"); } p += show_ip_wild(p, rule->src_ip, rule->src_wild); if (!extended) return buf; if (rule->proto == IPPROTO_TCP || rule->proto == IPPROTO_UDP) p += show_ports(p, &rule->src_ports); p += show_ip_wild(p, rule->dst_ip, rule->dst_wild); if (rule->proto == IPPROTO_TCP || rule->proto == IPPROTO_UDP) p += show_ports(p, &rule->dst_ports); if (rule->proto == IPPROTO_TCP && rule->tcp_flag_op) { switch (rule->tcp_flag_op) { case FILTER_FLAG_OP_EST: p += sprintf(p, " established"); break; case FILTER_FLAG_OP_ANY: case FILTER_FLAG_OP_ALL: p += sprintf(p, " match-%s", rule->tcp_flag_op == FILTER_FLAG_OP_ALL ? "all" : "any"); if (rule->tcp_sflags & TCP_FLAG_FIN) p += sprintf(p, " +fin"); if (rule->tcp_cflags & TCP_FLAG_FIN) p += sprintf(p, " -fin"); if (rule->tcp_sflags & TCP_FLAG_SYN) p += sprintf(p, " +syn"); if (rule->tcp_cflags & TCP_FLAG_SYN) p += sprintf(p, " -syn"); if (rule->tcp_sflags & TCP_FLAG_RST) p += sprintf(p, " +rst"); if (rule->tcp_cflags & TCP_FLAG_RST) p += sprintf(p, " -rst"); if (rule->tcp_sflags & TCP_FLAG_PSH) p += sprintf(p, " +psh"); if (rule->tcp_cflags & TCP_FLAG_PSH) p += sprintf(p, " -psh"); if (rule->tcp_sflags & TCP_FLAG_ACK) p += sprintf(p, " +ack"); if (rule->tcp_cflags & TCP_FLAG_ACK) p += sprintf(p, " -ack"); if (rule->tcp_sflags & TCP_FLAG_URG) p += sprintf(p, " +urg"); if (rule->tcp_cflags & TCP_FLAG_URG) p += sprintf(p, " -urg"); break; } } if (rule->frag) p += sprintf(p, " fragments"); return buf; } static ip_filter_rulet *access_list_rule_ext(struct cli_def *cli, const char *command, char **argv, int argc) { static ip_filter_rulet rule; struct in_addr addr; int i; int a; if (CLI_HELP_REQUESTED) { if (argc == 1) { cli_arg_help(cli, 0, "ip", "Match IP packets", "tcp", "Match TCP packets", "udp", "Match UDP packets", NULL); return NULL; } // *sigh*, too darned complex cli_arg_help(cli, 0, "RULE", "SOURCE [PORTS] DEST [PORTS] FLAGS", NULL); return NULL; } if (argc < 3) { cli_error(cli, "Specify rule details"); return NULL; } memset(&rule, 0, sizeof(rule)); rule.action = (command[0] == 'p') ? FILTER_ACTION_PERMIT : FILTER_ACTION_DENY; if (MATCH("ip", argv[0])) rule.proto = IPPROTO_IP; else if (MATCH("udp", argv[0])) rule.proto = IPPROTO_UDP; else if (MATCH("tcp", argv[0])) rule.proto = IPPROTO_TCP; else { cli_error(cli, "Invalid protocol \"%s\"", argv[0]); return NULL; } for (a = 1, i = 0; i < 2; i++) { in_addr_t *ip; in_addr_t *wild; ip_filter_portt *port; if (i == 0) { ip = &rule.src_ip; wild = &rule.src_wild; port = &rule.src_ports; } else { ip = &rule.dst_ip; wild = &rule.dst_wild; port = &rule.dst_ports; if (a >= argc) { cli_error(cli, "Specify destination"); return NULL; } } if (MATCH("any", argv[a])) { *ip = INADDR_ANY; *wild = INADDR_BROADCAST; a++; } else if (MATCH("host", argv[a])) { if (++a >= argc) { cli_error(cli, "Specify host ip address"); return NULL; } if (!inet_aton(argv[a], &addr)) { cli_error(cli, "Cannot parse IP \"%s\"", argv[a]); return NULL; } *ip = addr.s_addr; *wild = INADDR_ANY; a++; } else { if (a >= argc - 1) { cli_error(cli, "Specify %s ip address and wildcard", i ? "destination" : "source"); return NULL; } if (!inet_aton(argv[a], &addr)) { cli_error(cli, "Cannot parse IP \"%s\"", argv[a]); return NULL; } *ip = addr.s_addr; if (!inet_aton(argv[++a], &addr)) { cli_error(cli, "Cannot parse IP \"%s\"", argv[a]); return NULL; } *wild = addr.s_addr; a++; } if (rule.proto == IPPROTO_IP || a >= argc) continue; port->op = 0; if (MATCH("eq", argv[a])) port->op = FILTER_PORT_OP_EQ; else if (MATCH("neq", argv[a])) port->op = FILTER_PORT_OP_NEQ; else if (MATCH("gt", argv[a])) port->op = FILTER_PORT_OP_GT; else if (MATCH("lt", argv[a])) port->op = FILTER_PORT_OP_LT; else if (MATCH("range", argv[a])) port->op = FILTER_PORT_OP_RANGE; if (!port->op) continue; if (++a >= argc) { cli_error(cli, "Specify port"); return NULL; } if (!(port->port = atoi(argv[a]))) { cli_error(cli, "Invalid port \"%s\"", argv[a]); return NULL; } a++; if (port->op != FILTER_PORT_OP_RANGE) continue; if (a >= argc) { cli_error(cli, "Specify port"); return NULL; } if (!(port->port2 = atoi(argv[a])) || port->port2 < port->port) { cli_error(cli, "Invalid port \"%s\"", argv[a]); return NULL; } a++; } if (rule.proto == IPPROTO_TCP && a < argc) { if (MATCH("established", argv[a])) { rule.tcp_flag_op = FILTER_FLAG_OP_EST; a++; } else if (!strcmp(argv[a], "match-any") || !strcmp(argv[a], "match-an") || !strcmp(argv[a], "match-all") || !strcmp(argv[a], "match-al")) { rule.tcp_flag_op = argv[a][7] == 'n' ? FILTER_FLAG_OP_ANY : FILTER_FLAG_OP_ALL; if (++a >= argc) { cli_error(cli, "Specify tcp flags"); return NULL; } while (a < argc && (argv[a][0] == '+' || argv[a][0] == '-')) { uint8_t *f; f = (argv[a][0] == '+') ? &rule.tcp_sflags : &rule.tcp_cflags; if (MATCH("fin", &argv[a][1])) *f |= TCP_FLAG_FIN; else if (MATCH("syn", &argv[a][1])) *f |= TCP_FLAG_SYN; else if (MATCH("rst", &argv[a][1])) *f |= TCP_FLAG_RST; else if (MATCH("psh", &argv[a][1])) *f |= TCP_FLAG_PSH; else if (MATCH("ack", &argv[a][1])) *f |= TCP_FLAG_ACK; else if (MATCH("urg", &argv[a][1])) *f |= TCP_FLAG_URG; else { cli_error(cli, "Invalid tcp flag \"%s\"", argv[a]); return NULL; } a++; } } } if (a < argc && MATCH("fragments", argv[a])) { if (rule.src_ports.op || rule.dst_ports.op || rule.tcp_flag_op) { cli_error(cli, "Can't specify \"fragments\" on rules with layer 4 matches"); return NULL; } rule.frag = 1; a++; } if (a < argc) { cli_error(cli, "Invalid flag \"%s\"", argv[a]); return NULL; } return &rule; } static ip_filter_rulet *access_list_rule_std(struct cli_def *cli, const char *command, char **argv, int argc) { static ip_filter_rulet rule; struct in_addr addr; if (CLI_HELP_REQUESTED) { if (argc == 1) { cli_arg_help(cli, argv[0][1], "A.B.C.D", "Source address", "any", "Any source address", "host", "Source host", NULL); return NULL; } if (MATCH("any", argv[0])) { if (argc == 2 && !argv[1][1]) cli_arg_help(cli, 1, NULL); } else if (MATCH("host", argv[0])) { if (argc == 2) { cli_arg_help(cli, argv[1][1], "A.B.C.D", "Host address", NULL); } else if (argc == 3 && !argv[2][1]) cli_arg_help(cli, 1, NULL); } else { if (argc == 2) { cli_arg_help(cli, 1, "A.B.C.D", "Wildcard bits", NULL); } else if (argc == 3 && !argv[2][1]) cli_arg_help(cli, 1, NULL); } return NULL; } if (argc < 1) { cli_error(cli, "Specify rule details"); return NULL; } memset(&rule, 0, sizeof(rule)); rule.action = (command[0] == 'p') ? FILTER_ACTION_PERMIT : FILTER_ACTION_DENY; rule.proto = IPPROTO_IP; if (MATCH("any", argv[0])) { rule.src_ip = INADDR_ANY; rule.src_wild = INADDR_BROADCAST; } else if (MATCH("host", argv[0])) { if (argc != 2) { cli_error(cli, "Specify host ip address"); return NULL; } if (!inet_aton(argv[1], &addr)) { cli_error(cli, "Cannot parse IP \"%s\"", argv[1]); return NULL; } rule.src_ip = addr.s_addr; rule.src_wild = INADDR_ANY; } else { if (argc > 2) { cli_error(cli, "Specify source ip address and wildcard"); return NULL; } if (!inet_aton(argv[0], &addr)) { cli_error(cli, "Cannot parse IP \"%s\"", argv[0]); return NULL; } rule.src_ip = addr.s_addr; if (argc > 1) { if (!inet_aton(argv[1], &addr)) { cli_error(cli, "Cannot parse IP \"%s\"", argv[1]); return NULL; } rule.src_wild = addr.s_addr; } else rule.src_wild = INADDR_ANY; } return &rule; } static int cmd_ip_access_list_rule(struct cli_def *cli, const char *command, char **argv, int argc) { int i; ip_filter_rulet *rule = ip_filters[filt].extended ? access_list_rule_ext(cli, command, argv, argc) : access_list_rule_std(cli, command, argv, argc); if (!rule) return CLI_OK; for (i = 0; i < MAXFILTER_RULES - 1; i++) // -1: list always terminated by empty rule { if (!ip_filters[filt].rules[i].action) { memcpy(&ip_filters[filt].rules[i], rule, sizeof(*rule)); return CLI_OK; } if (!memcmp(&ip_filters[filt].rules[i], rule, offsetof(ip_filter_rulet, counter))) return CLI_OK; } cli_error(cli, "Too many rules"); return CLI_OK; } static int cmd_filter(struct cli_def *cli, const char *command, char **argv, int argc) { sessionidt s; int i; /* filter USER {in|out} FILTER ... */ if (CLI_HELP_REQUESTED) { switch (argc) { case 1: return cli_arg_help(cli, 0, "USER", "Username of session to filter", NULL); case 2: case 4: return cli_arg_help(cli, 0, "in", "Set incoming filter", "out", "Set outgoing filter", NULL); case 3: case 5: return cli_arg_help(cli, argc == 5 && argv[4][1], "NAME", "Filter name", NULL); default: return cli_arg_help(cli, argc > 1, NULL); } } if (!config->cluster_iam_master) { cli_error(cli, "Can't do this on a slave. Do it on %s", fmtaddr(config->cluster_master_address, 0)); return CLI_OK; } if (argc != 3 && argc != 5) { cli_error(cli, "Specify a user and filters"); return CLI_OK; } if (!(s = sessionbyuser(argv[0]))) { cli_error(cli, "User %s is not connected", argv[0]); return CLI_OK; } cli_session_actions[s].filter_in = cli_session_actions[s].filter_out = -1; for (i = 1; i < argc; i += 2) { int *f = 0; int v; if (MATCH("in", argv[i])) { if (session[s].filter_in) { cli_error(cli, "Input already filtered"); return CLI_OK; } f = &cli_session_actions[s].filter_in; } else if (MATCH("out", argv[i])) { if (session[s].filter_out) { cli_error(cli, "Output already filtered"); return CLI_OK; } f = &cli_session_actions[s].filter_out; } else { cli_error(cli, "Invalid filter specification"); return CLI_OK; } v = find_filter(argv[i+1], strlen(argv[i+1])); if (v < 0 || !*ip_filters[v].name) { cli_error(cli, "Access-list %s not defined", argv[i+1]); return CLI_OK; } *f = v + 1; } cli_print(cli, "Filtering user %s", argv[0]); cli_session_actions[s].action |= CLI_SESS_FILTER; return CLI_OK; } static int cmd_no_filter(struct cli_def *cli, const char *command, char **argv, int argc) { int i; sessionidt s; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, argc > 1, "USER", "Username of session to remove filters from", NULL); if (!config->cluster_iam_master) { cli_error(cli, "Can't do this on a slave. Do it on %s", fmtaddr(config->cluster_master_address, 0)); return CLI_OK; } if (!argc) { cli_error(cli, "Specify a user to remove filters from"); return CLI_OK; } for (i = 0; i < argc; i++) { if (!(s = sessionbyuser(argv[i]))) { cli_error(cli, "User %s is not connected", argv[i]); continue; } if (session[s].filter_in || session[s].filter_out) { cli_print(cli, "Removing filters from user %s", argv[i]); cli_session_actions[s].action |= CLI_SESS_NOFILTER; } else { cli_error(cli, "User %s not filtered", argv[i]); } } return CLI_OK; } static int cmd_show_access_list(struct cli_def *cli, const char *command, char **argv, int argc) { int i; if (CLI_HELP_REQUESTED) return cli_arg_help(cli, argc > 1, "NAME", "Filter name", NULL); if (argc < 1) { cli_error(cli, "Specify a filter name"); return CLI_OK; } for (i = 0; i < argc; i++) { int f = find_filter(argv[i], strlen(argv[i])); ip_filter_rulet *rules; if (f < 0 || !*ip_filters[f].name) { cli_error(cli, "Access-list %s not defined", argv[i]); return CLI_OK; } if (i) cli_print(cli, " "); cli_print(cli, "%s IP access list %s", ip_filters[f].extended ? "Extended" : "Standard", ip_filters[f].name); for (rules = ip_filters[f].rules; rules->action; rules++) { char const *r = show_access_list_rule(ip_filters[f].extended, rules); if (rules->counter) cli_print(cli, "%s (%u match%s)", r, rules->counter, rules->counter > 1 ? "es" : ""); else cli_print(cli, "%s", r); } } return CLI_OK; } static int cmd_shutdown(struct cli_def *cli, const char *command, char **argv, int argc) { if (CLI_HELP_REQUESTED) return CLI_HELP_NO_ARGS; kill(getppid(), SIGQUIT); return CLI_OK; } static int cmd_reload(struct cli_def *cli, const char *command, char **argv, int argc) { if (CLI_HELP_REQUESTED) return CLI_HELP_NO_ARGS; kill(getppid(), SIGHUP); return CLI_OK; } static int cmd_setforward(struct cli_def *cli, const char *command, char **argv, int argc) { int ret; if (CLI_HELP_REQUESTED) { switch (argc) { case 1: return cli_arg_help(cli, 0, "MASK", "Users mask to forward (ex: myISP@operator.com)", NULL); case 2: return cli_arg_help(cli, 0, "IP", "IP of the remote LNS(ex: 64.64.64.64)", NULL); case 3: return cli_arg_help(cli, 0, "PORT", "Port of the remote LNS (ex: 1701)", NULL); case 4: return cli_arg_help(cli, 0, "SECRET", "l2tp secret of the remote LNS (ex: mysecretpsw)", NULL); default: return cli_arg_help(cli, argc > 1, NULL); } } if (argc != 4) { cli_error(cli, "Specify variable and value"); return CLI_OK; } // lac_addremotelns(mask, IP_RemoteLNS, Port_RemoteLNS, SecretRemoteLNS) ret = lac_addremotelns(argv[0], argv[1], argv[2], argv[3]); if (ret) { cli_print(cli, "setforward %s %s %s %s", argv[0], argv[1], argv[2], argv[3]); if (ret == 2) cli_print(cli, "%s Updated, the tunnel must be dropped", argv[0]); } else cli_error(cli, "ERROR setforward %s %s %s %s", argv[0], argv[1], argv[2], argv[3]); return CLI_OK; } static int cmd_show_rmtlnsconf(struct cli_def *cli, const char *command, char **argv, int argc) { confrlnsidt idrlns; char strdisp[1024]; if (CLI_HELP_REQUESTED) { return cli_arg_help(cli, 0, "remotelns-conf", "Show a list of remote LNS configurations", NULL); } for (idrlns = 0; idrlns < MAXRLNSTUNNEL; idrlns++) { if (lac_cli_show_remotelns(idrlns, strdisp) != 0) cli_print(cli, "%s", strdisp); else break; } return CLI_OK; }