387 lines
12 KiB
C
387 lines
12 KiB
C
/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
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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 <anthmct@yahoo.com>
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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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* Anthony Minessale II <anthmct@yahoo.com>
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*
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*
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* mod_opalchan.c -- OPAL2 Endpoint Module
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*
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*/
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#include <switch.h>
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static const char modname[] = "mod_woomera";
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static switch_memory_pool *module_pool;
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typedef enum {
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TFLAG_IO = (1 << 0),
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TFLAG_INBOUND = (1 << 1),
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TFLAG_OUTBOUND = (1 << 2),
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TFLAG_DTMF = (1 << 3),
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} TFLAGS;
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static struct {
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int debug;
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int port;
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} globals;
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struct private_object {
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unsigned int flags;
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struct switch_frame frame;
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unsigned char databuf[SWITCH_RECCOMMENDED_BUFFER_SIZE];
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switch_core_session *session;
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switch_caller_profile *caller_profile;
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};
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static const switch_endpoint_interface channel_endpoint_interface;
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static switch_status channel_on_init(switch_core_session *session);
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static switch_status channel_on_hangup(switch_core_session *session);
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static switch_status channel_on_ring(switch_core_session *session);
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static switch_status channel_on_loopback(switch_core_session *session);
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static switch_status channel_on_transmit(switch_core_session *session);
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static switch_status channel_outgoing_channel(switch_core_session *session, switch_caller_profile *outbound_profile, switch_core_session **new_session);
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static switch_status channel_read_frame(switch_core_session *session, switch_frame **frame, int timeout, switch_io_flag flags, int stream_id);
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static switch_status channel_write_frame(switch_core_session *session, switch_frame *frame, int timeout, switch_io_flag flags, int stream_id);
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static switch_status channel_kill_channel(switch_core_session *session, int sig);
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/*
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State methods they get called when the state changes to the specific state
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returning SWITCH_STATUS_SUCCESS tells the core to execute the standard state method next
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so if you fully implement the state you can return SWITCH_STATUS_FALSE to skip it.
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*/
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static switch_status channel_on_init(switch_core_session *session)
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{
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switch_channel *channel;
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struct private_object *tech_pvt = NULL;
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tech_pvt = switch_core_session_get_private(session);
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assert(tech_pvt != NULL);
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channel = switch_core_session_get_channel(session);
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assert(channel != NULL);
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tech_pvt->frame.data = tech_pvt->databuf;
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status channel_on_ring(switch_core_session *session)
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{
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switch_channel *channel = NULL;
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struct private_object *tech_pvt = NULL;
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channel = switch_core_session_get_channel(session);
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assert(channel != NULL);
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tech_pvt = switch_core_session_get_private(session);
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assert(tech_pvt != NULL);
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "%s CHANNEL RING\n", switch_channel_get_name(channel));
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status channel_on_execute(switch_core_session *session)
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{
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switch_channel *channel = NULL;
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struct private_object *tech_pvt = NULL;
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channel = switch_core_session_get_channel(session);
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assert(channel != NULL);
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tech_pvt = switch_core_session_get_private(session);
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assert(tech_pvt != NULL);
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "%s CHANNEL EXECUTE\n", switch_channel_get_name(channel));
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status channel_on_hangup(switch_core_session *session)
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{
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switch_channel *channel = NULL;
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struct private_object *tech_pvt = NULL;
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channel = switch_core_session_get_channel(session);
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assert(channel != NULL);
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tech_pvt = switch_core_session_get_private(session);
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assert(tech_pvt != NULL);
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "%s CHANNEL HANGUP\n", switch_channel_get_name(channel));
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status channel_kill_channel(switch_core_session *session, int sig)
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{
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switch_channel *channel = NULL;
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struct private_object *tech_pvt = NULL;
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channel = switch_core_session_get_channel(session);
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assert(channel != NULL);
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tech_pvt = switch_core_session_get_private(session);
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assert(tech_pvt != NULL);
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switch_channel_hangup(channel);
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "%s CHANNEL KILL\n", switch_channel_get_name(channel));
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status channel_on_loopback(switch_core_session *session)
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{
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "CHANNEL LOOPBACK\n");
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status channel_on_transmit(switch_core_session *session)
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{
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "CHANNEL TRANSMIT\n");
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return SWITCH_STATUS_SUCCESS;
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}
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/* Make sure when you have 2 sessions in the same scope that you pass the appropriate one to the routines
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that allocate memory or you will have 1 channel with memory allocated from another channel's pool!
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*/
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static switch_status channel_outgoing_channel(switch_core_session *session, switch_caller_profile *outbound_profile, switch_core_session **new_session)
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{
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if ((*new_session = switch_core_session_request(&channel_endpoint_interface, NULL))) {
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struct private_object *tech_pvt;
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switch_channel *channel, *orig_channel;
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switch_caller_profile *caller_profile, *originator_caller_profile = NULL;
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switch_core_session_add_stream(*new_session, NULL);
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if ((tech_pvt = (struct private_object *) switch_core_session_alloc(*new_session, sizeof(struct private_object)))) {
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memset(tech_pvt, 0, sizeof(*tech_pvt));
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channel = switch_core_session_get_channel(*new_session);
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switch_core_session_set_private(*new_session, tech_pvt);
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tech_pvt->session = *new_session;
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} else {
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Hey where is my memory pool?\n");
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switch_core_session_destroy(new_session);
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return SWITCH_STATUS_GENERR;
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}
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if (outbound_profile) {
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char name[128];
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caller_profile = switch_caller_profile_clone(*new_session, outbound_profile);
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switch_channel_set_caller_profile(channel, caller_profile);
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tech_pvt->caller_profile = caller_profile;
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snprintf(name, sizeof(name), "Opal/%s-%04x", caller_profile->destination_number, rand() & 0xffff);
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switch_channel_set_name(channel, name);
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} else {
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Doh! no caller profile\n");
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switch_core_session_destroy(new_session);
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return SWITCH_STATUS_GENERR;
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}
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/* (session == NULL) means it was originated from the core not from another channel */
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if (session && (orig_channel = switch_core_session_get_channel(session))) {
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switch_caller_profile *cloned_profile;
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if ((originator_caller_profile = switch_channel_get_caller_profile(orig_channel))) {
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cloned_profile = switch_caller_profile_clone(*new_session, originator_caller_profile);
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switch_channel_set_originator_caller_profile(channel, cloned_profile);
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}
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}
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switch_channel_set_flag(channel, CF_OUTBOUND);
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switch_set_flag(tech_pvt, TFLAG_OUTBOUND);
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switch_channel_set_state(channel, CS_INIT);
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return SWITCH_STATUS_SUCCESS;
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}
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return SWITCH_STATUS_GENERR;
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}
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static switch_status channel_waitfor_read(switch_core_session *session, int ms, int stream_id)
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{
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struct private_object *tech_pvt = NULL;
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tech_pvt = switch_core_session_get_private(session);
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assert(tech_pvt != NULL);
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status channel_waitfor_write(switch_core_session *session, int ms, int stream_id)
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{
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struct private_object *tech_pvt = NULL;
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tech_pvt = switch_core_session_get_private(session);
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assert(tech_pvt != NULL);
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status channel_read_frame(switch_core_session *session, switch_frame **frame, int timeout, switch_io_flag flags, int stream_id)
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{
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switch_channel *channel = NULL;
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struct private_object *tech_pvt = NULL;
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//switch_frame *pframe;
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//switch_status status;
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channel = switch_core_session_get_channel(session);
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assert(channel != NULL);
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tech_pvt = switch_core_session_get_private(session);
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assert(tech_pvt != NULL);
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return SWITCH_STATUS_SUCCESS;
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}
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static switch_status channel_write_frame(switch_core_session *session, switch_frame *frame, int timeout, switch_io_flag flags, int stream_id)
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{
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switch_channel *channel = NULL;
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struct private_object *tech_pvt = NULL;
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//switch_frame *pframe;
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channel = switch_core_session_get_channel(session);
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assert(channel != NULL);
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tech_pvt = switch_core_session_get_private(session);
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assert(tech_pvt != NULL);
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return SWITCH_STATUS_SUCCESS;
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}
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static const switch_event_handler_table channel_event_handlers = {
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/*.on_init*/ channel_on_init,
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/*.on_ring*/ channel_on_ring,
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/*.on_execute*/ channel_on_execute,
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/*.on_hangup*/ channel_on_hangup,
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/*.on_loopback*/ channel_on_loopback,
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/*.on_transmit*/ channel_on_transmit
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};
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static const switch_io_routines channel_io_routines = {
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/*.outgoing_channel*/ channel_outgoing_channel,
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/*.answer_channel*/ NULL,
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/*.read_frame*/ channel_read_frame,
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/*.write_frame*/ channel_write_frame,
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/*.kill_channel*/ channel_kill_channel,
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/*.waitfor_read*/ channel_waitfor_read,
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/*.waitfor_write*/ channel_waitfor_write
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};
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static const switch_endpoint_interface channel_endpoint_interface = {
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/*.interface_name*/ "opal",
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/*.io_routines*/ &channel_io_routines,
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/*.event_handlers*/ &channel_event_handlers,
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/*.private*/ NULL,
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/*.next*/ NULL
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};
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static const switch_loadable_module_interface channel_module_interface = {
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/*.module_name*/ modname,
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/*.endpoint_interface*/ &channel_endpoint_interface,
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/*.timer_interface*/ NULL,
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/*.dialplan_interface*/ NULL,
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/*.codec_interface*/ NULL,
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/*.application_interface*/ NULL
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};
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/*
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SWITCH_MOD_DECLARE(switch_status) switch_module_shutdown(void)
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{
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int x = 0;
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opal_profile_thread_running(&default_profile, 1, 0);
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while (!opal_profile_thread_running(&default_profile, 0, 0)) {
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opal_socket_close(&default_profile.opal_socket);
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if (x++ > 10) {
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break;
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}
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switch_yield(1);
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}
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return SWITCH_STATUS_SUCCESS;
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}
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*/
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SWITCH_MOD_DECLARE(switch_status) switch_module_load(const switch_loadable_module_interface **interface, char *filename) {
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switch_config cfg;
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char *var, *val;
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char *cf = "opal.conf";
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memset(&globals, 0, sizeof(globals));
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if (!switch_config_open_file(&cfg, cf)) {
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "open of %s failed\n", cf);
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return SWITCH_STATUS_TERM;
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}
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while (switch_config_next_pair(&cfg, &var, &val)) {
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if (!strcasecmp(cfg.category, "settings")) {
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if (!strcmp(var, "debug")) {
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globals.debug = atoi(val);
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} else if (!strcmp(var, "port")) {
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globals.port = atoi(val);
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}
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}
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}
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switch_config_close_file(&cfg);
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if (switch_core_new_memory_pool(&module_pool) != SWITCH_STATUS_SUCCESS) {
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switch_console_printf(SWITCH_CHANNEL_CONSOLE, "OH OH no pool\n");
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return SWITCH_STATUS_TERM;
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}
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/* connect my internal structure to the blank pointer passed to me */
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*interface = &channel_module_interface;
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/* indicate that the module should continue to be loaded */
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return SWITCH_STATUS_SUCCESS;
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}
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SWITCH_MOD_DECLARE(switch_status) switch_module_runtime(void)
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{
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return SWITCH_STATUS_TERM;
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}
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