777 lines
27 KiB
C
777 lines
27 KiB
C
/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005-2012, Anthony Minessale II <anthm@freeswitch.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthm@freeswitch.org>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Karl Anderson <karl@2600hz.com>
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* Darren Schreiber <darren@2600hz.com>
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*
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*
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* mod_kazoo.c -- Socket Controlled Event Handler
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*
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*/
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#include "mod_kazoo.h"
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#define KAZOO_DESC "kazoo information"
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#define KAZOO_SYNTAX "<command> [<args>]"
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SWITCH_MODULE_LOAD_FUNCTION(mod_kazoo_load);
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SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_kazoo_shutdown);
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SWITCH_MODULE_RUNTIME_FUNCTION(mod_kazoo_runtime);
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SWITCH_MODULE_DEFINITION(mod_kazoo, mod_kazoo_load, mod_kazoo_shutdown, mod_kazoo_runtime);
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SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_pref_ip, globals.ip);
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SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_pref_ei_cookie, globals.ei_cookie);
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SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_pref_ei_nodename, globals.ei_nodename);
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SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_pref_kazoo_var_prefix, globals.kazoo_var_prefix);
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static switch_status_t api_erlang_status(switch_stream_handle_t *stream) {
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switch_sockaddr_t *sa;
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uint16_t port;
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char ipbuf[25];
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const char *ip_addr;
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ei_node_t *ei_node;
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switch_socket_addr_get(&sa, SWITCH_FALSE, globals.acceptor);
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port = switch_sockaddr_get_port(sa);
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ip_addr = switch_get_addr(ipbuf, sizeof (ipbuf), sa);
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stream->write_function(stream, "Running %s\n", VERSION);
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stream->write_function(stream, "Listening for new Erlang connections on %s:%u with cookie %s\n", ip_addr, port, globals.ei_cookie);
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stream->write_function(stream, "Registered as Erlang node %s, visible as %s\n", globals.ei_cnode.thisnodename, globals.ei_cnode.thisalivename);
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if (globals.ei_compat_rel) {
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stream->write_function(stream, "Using Erlang compatibility mode: %d\n", globals.ei_compat_rel);
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}
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switch_thread_rwlock_rdlock(globals.ei_nodes_lock);
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ei_node = globals.ei_nodes;
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if (!ei_node) {
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stream->write_function(stream, "No erlang nodes connected\n");
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} else {
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stream->write_function(stream, "Connected to:\n");
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while(ei_node != NULL) {
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unsigned int year, day, hour, min, sec, delta;
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delta = (switch_micro_time_now() - ei_node->created_time) / 1000000;
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sec = delta % 60;
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min = delta / 60 % 60;
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hour = delta / 3600 % 24;
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day = delta / 86400 % 7;
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year = delta / 31556926 % 12;
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stream->write_function(stream, " %s (%s:%d) up %d years, %d days, %d hours, %d minutes, %d seconds\n"
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,ei_node->peer_nodename, ei_node->remote_ip, ei_node->remote_port, year, day, hour, min, sec);
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ei_node = ei_node->next;
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}
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}
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switch_thread_rwlock_unlock(globals.ei_nodes_lock);
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status_t api_erlang_event_filter(switch_stream_handle_t *stream) {
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switch_hash_index_t *hi = NULL;
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int column = 0;
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for (hi = (switch_hash_index_t *)switch_core_hash_first_iter(globals.event_filter, hi); hi; hi = switch_core_hash_next(&hi)) {
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const void *key;
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void *val;
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switch_core_hash_this(hi, &key, NULL, &val);
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stream->write_function(stream, "%-50s", (char *)key);
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if (++column > 2) {
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stream->write_function(stream, "\n");
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column = 0;
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}
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}
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if (++column > 2) {
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stream->write_function(stream, "\n");
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column = 0;
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}
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stream->write_function(stream, "%-50s", globals.kazoo_var_prefix);
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status_t api_erlang_nodes_list(switch_stream_handle_t *stream) {
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ei_node_t *ei_node;
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switch_thread_rwlock_rdlock(globals.ei_nodes_lock);
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ei_node = globals.ei_nodes;
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while(ei_node != NULL) {
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stream->write_function(stream, "%s (%s)\n", ei_node->peer_nodename, ei_node->remote_ip);
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ei_node = ei_node->next;
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}
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switch_thread_rwlock_unlock(globals.ei_nodes_lock);
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status_t api_erlang_nodes_count(switch_stream_handle_t *stream) {
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ei_node_t *ei_node;
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int count = 0;
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switch_thread_rwlock_rdlock(globals.ei_nodes_lock);
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ei_node = globals.ei_nodes;
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while(ei_node != NULL) {
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count++;
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ei_node = ei_node->next;
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}
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switch_thread_rwlock_unlock(globals.ei_nodes_lock);
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stream->write_function(stream, "%d\n", count);
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status_t api_complete_erlang_node(const char *line, const char *cursor, switch_console_callback_match_t **matches) {
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switch_console_callback_match_t *my_matches = NULL;
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switch_status_t status = SWITCH_STATUS_FALSE;
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ei_node_t *ei_node;
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switch_thread_rwlock_rdlock(globals.ei_nodes_lock);
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ei_node = globals.ei_nodes;
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while(ei_node != NULL) {
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switch_console_push_match(&my_matches, ei_node->peer_nodename);
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ei_node = ei_node->next;
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}
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switch_thread_rwlock_unlock(globals.ei_nodes_lock);
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if (my_matches) {
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*matches = my_matches;
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status = SWITCH_STATUS_SUCCESS;
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}
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return status;
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}
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static switch_status_t handle_node_api_event_stream(ei_event_stream_t *event_stream, switch_stream_handle_t *stream) {
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ei_event_binding_t *binding;
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int column = 0;
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switch_mutex_lock(event_stream->socket_mutex);
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if (event_stream->connected == SWITCH_FALSE) {
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switch_sockaddr_t *sa;
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uint16_t port;
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char ipbuf[25] = {0};
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const char *ip_addr;
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switch_socket_addr_get(&sa, SWITCH_TRUE, event_stream->acceptor);
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port = switch_sockaddr_get_port(sa);
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ip_addr = switch_get_addr(ipbuf, sizeof (ipbuf), sa);
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if (zstr(ip_addr)) {
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ip_addr = globals.ip;
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}
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stream->write_function(stream, "%s:%d -> disconnected\n"
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,ip_addr, port);
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} else {
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stream->write_function(stream, "%s:%d -> %s:%d\n"
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,event_stream->local_ip, event_stream->local_port
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,event_stream->remote_ip, event_stream->remote_port);
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}
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binding = event_stream->bindings;
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while(binding != NULL) {
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if (binding->type == SWITCH_EVENT_CUSTOM) {
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stream->write_function(stream, "CUSTOM %-43s", binding->subclass_name);
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} else {
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stream->write_function(stream, "%-50s", switch_event_name(binding->type));
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}
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if (++column > 2) {
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stream->write_function(stream, "\n");
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column = 0;
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}
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binding = binding->next;
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}
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switch_mutex_unlock(event_stream->socket_mutex);
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if (!column) {
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stream->write_function(stream, "\n");
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} else {
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stream->write_function(stream, "\n\n");
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}
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status_t handle_node_api_event_streams(ei_node_t *ei_node, switch_stream_handle_t *stream) {
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ei_event_stream_t *event_stream;
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switch_mutex_lock(ei_node->event_streams_mutex);
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event_stream = ei_node->event_streams;
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while(event_stream != NULL) {
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handle_node_api_event_stream(event_stream, stream);
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event_stream = event_stream->next;
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}
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switch_mutex_unlock(ei_node->event_streams_mutex);
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status_t handle_node_api_command(ei_node_t *ei_node, switch_stream_handle_t *stream, uint32_t command) {
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unsigned int year, day, hour, min, sec, delta;
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switch (command) {
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case API_COMMAND_DISCONNECT:
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stream->write_function(stream, "Disconnecting erlang node %s at managers request\n", ei_node->peer_nodename);
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switch_clear_flag(ei_node, LFLAG_RUNNING);
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break;
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case API_COMMAND_REMOTE_IP:
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delta = (switch_micro_time_now() - ei_node->created_time) / 1000000;
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sec = delta % 60;
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min = delta / 60 % 60;
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hour = delta / 3600 % 24;
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day = delta / 86400 % 7;
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year = delta / 31556926 % 12;
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stream->write_function(stream, "Uptime %d years, %d days, %d hours, %d minutes, %d seconds\n", year, day, hour, min, sec);
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stream->write_function(stream, "Local Address %s:%d\n", ei_node->local_ip, ei_node->local_port);
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stream->write_function(stream, "Remote Address %s:%d\n", ei_node->remote_ip, ei_node->remote_port);
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break;
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case API_COMMAND_STREAMS:
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handle_node_api_event_streams(ei_node, stream);
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break;
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case API_COMMAND_BINDINGS:
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handle_api_command_streams(ei_node, stream);
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break;
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default:
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break;
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}
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status_t api_erlang_node_command(switch_stream_handle_t *stream, const char *nodename, uint32_t command) {
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ei_node_t *ei_node;
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switch_thread_rwlock_rdlock(globals.ei_nodes_lock);
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ei_node = globals.ei_nodes;
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while(ei_node != NULL) {
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int length = strlen(ei_node->peer_nodename);
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if (!strncmp(ei_node->peer_nodename, nodename, length)) {
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handle_node_api_command(ei_node, stream, command);
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switch_thread_rwlock_unlock(globals.ei_nodes_lock);
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return SWITCH_STATUS_SUCCESS;
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}
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ei_node = ei_node->next;
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}
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switch_thread_rwlock_unlock(globals.ei_nodes_lock);
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return SWITCH_STATUS_NOTFOUND;
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}
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static int read_cookie_from_file(char *filename) {
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int fd;
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char cookie[MAXATOMLEN + 1];
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char *end;
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struct stat buf;
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ssize_t res;
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if (!stat(filename, &buf)) {
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if ((buf.st_mode & S_IRWXG) || (buf.st_mode & S_IRWXO)) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "%s must only be accessible by owner only.\n", filename);
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return 2;
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}
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if (buf.st_size > MAXATOMLEN) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "%s contains a cookie larger than the maximum atom size of %d.\n", filename, MAXATOMLEN);
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return 2;
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}
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fd = open(filename, O_RDONLY);
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if (fd < 1) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Unable to open cookie file %s : %d.\n", filename, errno);
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return 2;
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}
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if ((res = read(fd, cookie, MAXATOMLEN)) < 1) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Unable to read cookie file %s : %d.\n", filename, errno);
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}
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cookie[MAXATOMLEN] = '\0';
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/* replace any end of line characters with a null */
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if ((end = strchr(cookie, '\n'))) {
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*end = '\0';
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}
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if ((end = strchr(cookie, '\r'))) {
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*end = '\0';
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}
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set cookie from file %s: %s\n", filename, cookie);
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set_pref_ei_cookie(cookie);
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return 0;
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} else {
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/* don't error here, because we might be blindly trying to read $HOME/.erlang.cookie, and that can fail silently */
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return 1;
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}
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}
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static switch_status_t config(void) {
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char *cf = "kazoo.conf";
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switch_xml_t cfg, xml, child, param;
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globals.send_all_headers = globals.send_all_private_headers = 0;
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globals.connection_timeout = 500;
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globals.receive_timeout = 200;
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globals.receive_msg_preallocate = 2000;
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globals.event_stream_preallocate = 4000;
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globals.send_msg_batch = 10;
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globals.event_stream_framing = 2;
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if (!(xml = switch_xml_open_cfg(cf, &cfg, NULL))) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to open configuration file %s\n", cf);
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return SWITCH_STATUS_FALSE;
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} else {
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if ((child = switch_xml_child(cfg, "settings"))) {
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for (param = switch_xml_child(child, "param"); param; param = param->next) {
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char *var = (char *) switch_xml_attr_soft(param, "name");
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char *val = (char *) switch_xml_attr_soft(param, "value");
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if (!strcmp(var, "listen-ip")) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set bind ip address: %s\n", val);
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set_pref_ip(val);
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} else if (!strcmp(var, "cookie")) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set cookie: %s\n", val);
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set_pref_ei_cookie(val);
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} else if (!strcmp(var, "cookie-file")) {
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if (read_cookie_from_file(val) == 1) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Unable to read cookie from %s\n", val);
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}
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} else if (!strcmp(var, "nodename")) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set node name: %s\n", val);
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set_pref_ei_nodename(val);
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} else if (!strcmp(var, "shortname")) {
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globals.ei_shortname = switch_true(val);
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} else if (!strcmp(var, "kazoo-var-prefix")) {
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set_pref_kazoo_var_prefix(val);
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} else if (!strcmp(var, "compat-rel")) {
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if (atoi(val) >= 7)
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globals.ei_compat_rel = atoi(val);
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else
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid compatibility release '%s' specified\n", val);
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} else if (!strcmp(var, "nat-map")) {
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globals.nat_map = switch_true(val);
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} else if (!strcmp(var, "send-all-headers")) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set send-all-headers: %s\n", val);
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globals.send_all_headers = switch_true(val);
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} else if (!strcmp(var, "send-all-private-headers")) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set send-all-private-headers: %s\n", val);
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globals.send_all_private_headers = switch_true(val);
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} else if (!strcmp(var, "connection-timeout")) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set connection-timeout: %s\n", val);
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globals.connection_timeout = atoi(val);
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} else if (!strcmp(var, "receive-timeout")) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set receive-timeout: %s\n", val);
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globals.receive_timeout = atoi(val);
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} else if (!strcmp(var, "receive-msg-preallocate")) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set receive-msg-preallocate: %s\n", val);
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globals.receive_msg_preallocate = atoi(val);
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} else if (!strcmp(var, "event-stream-preallocate")) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set event-stream-preallocate: %s\n", val);
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globals.event_stream_preallocate = atoi(val);
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} else if (!strcmp(var, "send-msg-batch-size")) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set send-msg-batch-size: %s\n", val);
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globals.send_msg_batch = atoi(val);
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} else if (!strcmp(var, "event-stream-framing")) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Set event-stream-framing: %s\n", val);
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globals.event_stream_framing = atoi(val);
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}
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}
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}
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if ((child = switch_xml_child(cfg, "event-filter"))) {
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switch_hash_t *filter;
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switch_core_hash_init(&filter);
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for (param = switch_xml_child(child, "header"); param; param = param->next) {
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char *var = (char *) switch_xml_attr_soft(param, "name");
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switch_core_hash_insert(filter, var, "1");
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}
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globals.event_filter = filter;
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}
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switch_xml_free(xml);
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}
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if (globals.receive_msg_preallocate < 0) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Invalid receive message preallocate value, disabled\n");
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globals.receive_msg_preallocate = 0;
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}
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if (globals.event_stream_preallocate < 0) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Invalid event stream preallocate value, disabled\n");
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globals.event_stream_preallocate = 0;
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}
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if (globals.send_msg_batch < 1) {
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Invalid send message batch size, reverting to default\n");
|
|
globals.send_msg_batch = 10;
|
|
}
|
|
|
|
if (!globals.event_filter) {
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Event filter not found in configuration, using default\n");
|
|
globals.event_filter = create_default_filter();
|
|
}
|
|
|
|
if (globals.event_stream_framing < 1 || globals.event_stream_framing > 4) {
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Invalid event stream framing value, using default\n");
|
|
globals.event_stream_framing = 2;
|
|
}
|
|
|
|
if (zstr(globals.kazoo_var_prefix)) {
|
|
set_pref_kazoo_var_prefix("variable_ecallmgr*");
|
|
globals.var_prefix_length = 17; //ignore the *
|
|
} else {
|
|
/* we could use the global pool but then we would have to conditionally
|
|
* free the pointer if it was not drawn from the XML */
|
|
char *buf;
|
|
int size = switch_snprintf(NULL, 0, "variable_%s*", globals.kazoo_var_prefix) + 1;
|
|
|
|
switch_malloc(buf, size);
|
|
switch_snprintf(buf, size, "variable_%s*", globals.kazoo_var_prefix);
|
|
switch_safe_free(globals.kazoo_var_prefix);
|
|
globals.kazoo_var_prefix = buf;
|
|
globals.var_prefix_length = size - 2; //ignore the *
|
|
}
|
|
|
|
if (!globals.num_worker_threads) {
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Number of worker threads not found in configuration, using default\n");
|
|
globals.num_worker_threads = 10;
|
|
}
|
|
|
|
if (zstr(globals.ip)) {
|
|
set_pref_ip("0.0.0.0");
|
|
}
|
|
|
|
if (zstr(globals.ei_cookie)) {
|
|
int res;
|
|
char *home_dir = getenv("HOME");
|
|
char path_buf[1024];
|
|
|
|
if (!zstr(home_dir)) {
|
|
/* $HOME/.erlang.cookie */
|
|
switch_snprintf(path_buf, sizeof (path_buf), "%s%s%s", home_dir, SWITCH_PATH_SEPARATOR, ".erlang.cookie");
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Checking for cookie at path: %s\n", path_buf);
|
|
|
|
res = read_cookie_from_file(path_buf);
|
|
if (res) {
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "No cookie or valid cookie file specified, using default cookie\n");
|
|
set_pref_ei_cookie("ClueCon");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!globals.ei_nodename) {
|
|
set_pref_ei_nodename("freeswitch");
|
|
}
|
|
|
|
if (!globals.nat_map) {
|
|
globals.nat_map = 0;
|
|
}
|
|
|
|
return SWITCH_STATUS_SUCCESS;
|
|
}
|
|
|
|
static switch_status_t create_acceptor() {
|
|
switch_sockaddr_t *sa;
|
|
uint16_t port;
|
|
char ipbuf[25];
|
|
const char *ip_addr;
|
|
|
|
/* if the config has specified an erlang release compatibility then pass that along to the erlang interface */
|
|
if (globals.ei_compat_rel) {
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Compatability with OTP R%d requested\n", globals.ei_compat_rel);
|
|
ei_set_compat_rel(globals.ei_compat_rel);
|
|
}
|
|
|
|
if (!(globals.acceptor = create_socket(globals.pool))) {
|
|
return SWITCH_STATUS_SOCKERR;
|
|
}
|
|
|
|
switch_socket_addr_get(&sa, SWITCH_FALSE, globals.acceptor);
|
|
|
|
port = switch_sockaddr_get_port(sa);
|
|
ip_addr = switch_get_addr(ipbuf, sizeof (ipbuf), sa);
|
|
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Erlang connection acceptor listening on %s:%u\n", ip_addr, port);
|
|
|
|
/* try to initialize the erlang interface */
|
|
if (create_ei_cnode(ip_addr, globals.ei_nodename, &globals.ei_cnode) != SWITCH_STATUS_SUCCESS) {
|
|
return SWITCH_STATUS_SOCKERR;
|
|
}
|
|
|
|
/* tell the erlang port manager where we can be reached. this returns a file descriptor pointing to epmd or -1 */
|
|
if ((globals.epmdfd = ei_publish(&globals.ei_cnode, port)) == -1) {
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,
|
|
"Failed to publish port to epmd. Try starting it yourself or run an erl shell with the -sname or -name option.\n");
|
|
return SWITCH_STATUS_SOCKERR;
|
|
}
|
|
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Connected to epmd and published erlang cnode name %s at port %d\n", globals.ei_cnode.thisnodename, port);
|
|
|
|
return SWITCH_STATUS_SUCCESS;
|
|
}
|
|
|
|
SWITCH_STANDARD_API(exec_api_cmd)
|
|
{
|
|
char *argv[1024] = { 0 };
|
|
int unknown_command = 1, argc = 0;
|
|
char *mycmd = NULL;
|
|
|
|
const char *usage_string = "USAGE:\n"
|
|
"--------------------------------------------------------------------------------------------------------------------\n"
|
|
"erlang status - provides an overview of the current status\n"
|
|
"erlang event_filter - lists the event headers that will be sent to Erlang nodes\n"
|
|
"erlang nodes list - lists connected Erlang nodes (usefull for monitoring tools)\n"
|
|
"erlang nodes count - provides a count of connected Erlang nodes (usefull for monitoring tools)\n"
|
|
"erlang node <node_name> disconnect - disconnects an Erlang node\n"
|
|
"erlang node <node_name> connection - Shows the connection info\n"
|
|
"erlang node <node_name> event_streams - lists the event streams for an Erlang node\n"
|
|
"erlang node <node_name> fetch_bindings - lists the XML fetch bindings for an Erlang node\n"
|
|
"---------------------------------------------------------------------------------------------------------------------\n";
|
|
|
|
if (zstr(cmd)) {
|
|
stream->write_function(stream, "%s", usage_string);
|
|
return SWITCH_STATUS_SUCCESS;
|
|
}
|
|
|
|
if (!(mycmd = strdup(cmd))) {
|
|
return SWITCH_STATUS_MEMERR;
|
|
}
|
|
|
|
if (!(argc = switch_separate_string(mycmd, ' ', argv, (sizeof(argv) / sizeof(argv[0]))))) {
|
|
stream->write_function(stream, "%s", usage_string);
|
|
switch_safe_free(mycmd);
|
|
return SWITCH_STATUS_SUCCESS;
|
|
}
|
|
|
|
if (zstr(argv[0])) {
|
|
stream->write_function(stream, "%s", usage_string);
|
|
switch_safe_free(mycmd);
|
|
return SWITCH_STATUS_SUCCESS;
|
|
}
|
|
|
|
if (!strncmp(argv[0], "status", 6)) {
|
|
unknown_command = 0;
|
|
api_erlang_status(stream);
|
|
} else if (!strncmp(argv[0], "event_filter", 6)) {
|
|
unknown_command = 0;
|
|
api_erlang_event_filter(stream);
|
|
} else if (!strncmp(argv[0], "nodes", 6) && !zstr(argv[1])) {
|
|
if (!strncmp(argv[1], "list", 6)) {
|
|
unknown_command = 0;
|
|
api_erlang_nodes_list(stream);
|
|
} else if (!strncmp(argv[1], "count", 6)) {
|
|
unknown_command = 0;
|
|
api_erlang_nodes_count(stream);
|
|
}
|
|
} else if (!strncmp(argv[0], "node", 6) && !zstr(argv[1]) && !zstr(argv[2])) {
|
|
if (!strncmp(argv[2], "disconnect", 6)) {
|
|
unknown_command = 0;
|
|
api_erlang_node_command(stream, argv[1], API_COMMAND_DISCONNECT);
|
|
} else if (!strncmp(argv[2], "connection", 2)) {
|
|
unknown_command = 0;
|
|
api_erlang_node_command(stream, argv[1], API_COMMAND_REMOTE_IP);
|
|
} else if (!strncmp(argv[2], "event_streams", 6)) {
|
|
unknown_command = 0;
|
|
api_erlang_node_command(stream, argv[1], API_COMMAND_STREAMS);
|
|
} else if (!strncmp(argv[2], "fetch_bindings", 6)) {
|
|
unknown_command = 0;
|
|
api_erlang_node_command(stream, argv[1], API_COMMAND_BINDINGS);
|
|
}
|
|
}
|
|
|
|
if (unknown_command) {
|
|
stream->write_function(stream, "%s", usage_string);
|
|
}
|
|
|
|
switch_safe_free(mycmd);
|
|
return SWITCH_STATUS_SUCCESS;
|
|
}
|
|
|
|
SWITCH_MODULE_LOAD_FUNCTION(mod_kazoo_load) {
|
|
switch_api_interface_t *api_interface = NULL;
|
|
switch_application_interface_t *app_interface = NULL;
|
|
|
|
memset(&globals, 0, sizeof(globals));
|
|
|
|
globals.pool = pool;
|
|
globals.ei_nodes = NULL;
|
|
|
|
if(config() != SWITCH_STATUS_SUCCESS) {
|
|
// TODO: what would we need to clean up here?
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Improper configuration!\n");
|
|
return SWITCH_STATUS_TERM;
|
|
}
|
|
|
|
if(create_acceptor() != SWITCH_STATUS_SUCCESS) {
|
|
// TODO: what would we need to clean up here
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Unable to create erlang connection acceptor!\n");
|
|
close_socket(&globals.acceptor);
|
|
return SWITCH_STATUS_TERM;
|
|
}
|
|
|
|
/* connect my internal structure to the blank pointer passed to me */
|
|
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
|
|
|
|
/* create an api for cli debug commands */
|
|
SWITCH_ADD_API(api_interface, "erlang", KAZOO_DESC, exec_api_cmd, KAZOO_SYNTAX);
|
|
switch_console_set_complete("add erlang status");
|
|
switch_console_set_complete("add erlang event_filter");
|
|
switch_console_set_complete("add erlang nodes list");
|
|
switch_console_set_complete("add erlang nodes count");
|
|
switch_console_set_complete("add erlang node ::erlang::node disconnect");
|
|
switch_console_set_complete("add erlang node ::erlang::node connection");
|
|
switch_console_set_complete("add erlang node ::erlang::node event_streams");
|
|
switch_console_set_complete("add erlang node ::erlang::node fetch_bindings");
|
|
switch_console_add_complete_func("::erlang::node", api_complete_erlang_node);
|
|
|
|
switch_thread_rwlock_create(&globals.ei_nodes_lock, pool);
|
|
|
|
switch_set_flag(&globals, LFLAG_RUNNING);
|
|
|
|
/* create all XML fetch agents */
|
|
bind_fetch_agents();
|
|
|
|
/* add our modified commands */
|
|
add_kz_commands(module_interface, api_interface);
|
|
|
|
/* add our modified dptools */
|
|
add_kz_dptools(module_interface, app_interface);
|
|
|
|
/* indicate that the module should continue to be loaded */
|
|
return SWITCH_STATUS_SUCCESS;
|
|
}
|
|
|
|
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_kazoo_shutdown) {
|
|
int sanity = 0;
|
|
|
|
switch_console_set_complete("del erlang");
|
|
switch_console_del_complete_func("::erlang::node");
|
|
|
|
/* stop taking new requests and start shuting down the threads */
|
|
switch_clear_flag(&globals, LFLAG_RUNNING);
|
|
|
|
/* give everyone time to cleanly shutdown */
|
|
while (switch_atomic_read(&globals.threads)) {
|
|
switch_yield(100000);
|
|
if (++sanity >= 200) {
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Unable to kill all threads, continuing. This probably wont end well.....good luck!\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (globals.event_filter) {
|
|
switch_core_hash_destroy(&globals.event_filter);
|
|
}
|
|
|
|
switch_thread_rwlock_wrlock(globals.ei_nodes_lock);
|
|
switch_thread_rwlock_unlock(globals.ei_nodes_lock);
|
|
switch_thread_rwlock_destroy(globals.ei_nodes_lock);
|
|
|
|
/* close the connection to epmd and the acceptor */
|
|
close_socketfd(&globals.epmdfd);
|
|
close_socket(&globals.acceptor);
|
|
|
|
/* remove all XML fetch agents */
|
|
unbind_fetch_agents();
|
|
|
|
/* Close the port we reserved for uPnP/Switch behind firewall, if necessary */
|
|
// if (globals.nat_map && switch_nat_get_type()) {
|
|
// switch_nat_del_mapping(globals.port, SWITCH_NAT_TCP);
|
|
// }
|
|
|
|
/* clean up our allocated preferences */
|
|
switch_safe_free(globals.ip);
|
|
switch_safe_free(globals.ei_cookie);
|
|
switch_safe_free(globals.ei_nodename);
|
|
switch_safe_free(globals.kazoo_var_prefix);
|
|
|
|
return SWITCH_STATUS_SUCCESS;
|
|
}
|
|
|
|
SWITCH_MODULE_RUNTIME_FUNCTION(mod_kazoo_runtime) {
|
|
switch_os_socket_t os_socket;
|
|
|
|
switch_atomic_inc(&globals.threads);
|
|
|
|
switch_os_sock_get(&os_socket, globals.acceptor);
|
|
|
|
while (switch_test_flag(&globals, LFLAG_RUNNING)) {
|
|
int nodefd;
|
|
ErlConnect conn;
|
|
|
|
/* zero out errno because ei_accept doesn't differentiate between a */
|
|
/* failed authentication or a socket failure, or a client version */
|
|
/* mismatch or a godzilla attack (and a godzilla attack is highly likely) */
|
|
errno = 0;
|
|
|
|
/* wait here for an erlang node to connect, timming out to check if our module is still running every now-and-again */
|
|
if ((nodefd = ei_accept_tmo(&globals.ei_cnode, (int) os_socket, &conn, globals.connection_timeout)) == ERL_ERROR) {
|
|
if (erl_errno == ETIMEDOUT) {
|
|
continue;
|
|
} else if (errno) {
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Erlang connection acceptor socket error %d %d\n", erl_errno, errno);
|
|
} else {
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING,
|
|
"Erlang node connection failed - ensure your cookie matches '%s' and you are using a good nodename\n", globals.ei_cookie);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (!switch_test_flag(&globals, LFLAG_RUNNING)) {
|
|
break;
|
|
}
|
|
|
|
/* NEW ERLANG NODE CONNECTION! Hello friend! */
|
|
new_kazoo_node(nodefd, &conn);
|
|
}
|
|
|
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Erlang connection acceptor shut down\n");
|
|
|
|
switch_atomic_dec(&globals.threads);
|
|
|
|
return SWITCH_STATUS_TERM;
|
|
}
|
|
|
|
|
|
/* For Emacs:
|
|
* Local Variables:
|
|
* mode:c
|
|
* indent-tabs-mode:t
|
|
* tab-width:4
|
|
* c-basic-offset:4
|
|
* End:
|
|
* For VIM:
|
|
* vim:set softtabstop=4 shiftwidth=4 tabstop=4:
|
|
*/
|