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freeswitch-contrib
提交 04d69b07 authored 作者: Leon de Rooij's avatar Leon de Rooij
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busy with mod_pcli 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk/contrib@15287 d0543943-73ff-0310-b7d9-9358b9ac24b2
上级 f840b2fa
隐藏空白字符变更
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正在显示 包含 81 行增加 和 43 行删除
ledr/c/mod_li/mod_li.c → ledr/c/mod_pcli/mod_pcli.c
浏览文件 @ 04d69b07
......@@ -26,17 +26,26 @@
* Leon de Rooij <leon@toyos.nl>
*
*
* mod_li.c -- Legal Intercept
*
* THIS MODULE IS STILL UNDER CONSTRUCTION !!!!!!!!!!!!!!!!!!!
*
* Enable Legal Intercept, copy all frame data, prepend it with
* LI_ID, SEQ, TIMESTAMP, DIRECTION, CIN (can I use call-uuid for this?) - perhaps ETSI232 compliant would be nice ?
* and send it over UDP to remote_addr:remote_port
* mod_pcli.c -- Packet Cable Lawful Intercept
*
*/
#include <switch.h>
#include <netdb.h>
#define PCLI_HEADER_LEN 32
#define PCLI_HEADER_LEN_DIRECTION 2
#define PCLI_HEADER_LEN_CALL_ID 10
#define PCLI_HEADER_LEN_SWITCH_ID 4
#define PCLI_HEADER_LEN_INI_ID 16
/*
typedef enum {
MEDIA_DIRECTION_UNKNOWN,
MEDIA_DIRECTION_FROM_TARGET,
MEDIA_DIRECTION_TO_TARGET,
MEDIA_DIRECTION_MONO_MODE
} pcli_media_direction_t;
*/
SWITCH_MODULE_LOAD_FUNCTION(mod_li_load);
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_li_shutdown);
......@@ -46,6 +55,7 @@ SWITCH_STANDARD_APP(li_start_function);
static struct {
switch_memory_pool_t *pool;
int switch_id;
char *local_addr;
int local_port;
char *remote_addr;
......@@ -54,17 +64,19 @@ static struct {
} li_globals;
typedef struct {
/*! Internal FreeSWITCH session. */
switch_core_session_t *session;
char *li_id; /* legal intercept id */
char *ini_id;
} li_session_helper_t;
/* config item validations */
static switch_xml_config_int_options_t config_opt_valid_switch_id = { SWITCH_TRUE, 0, SWITCH_TRUE, 15 };
static switch_xml_config_string_options_t config_opt_valid_addr = { NULL, 0, ".+" };
static switch_xml_config_int_options_t config_opt_valid_port = { SWITCH_TRUE, 0, SWITCH_TRUE, 65535 };
/* config items */
static switch_xml_config_item_t instructions[] = {
SWITCH_CONFIG_ITEM("switch_id", SWITCH_CONFIG_INT, CONFIG_RELOADABLE, &li_globals.switch_id,
(void*)0, &config_opt_valid_switch_id, NULL, NULL),
SWITCH_CONFIG_ITEM("local_addr", SWITCH_CONFIG_STRING, CONFIG_RELOADABLE, &li_globals.local_addr,
"localhost", &config_opt_valid_addr, NULL, NULL),
SWITCH_CONFIG_ITEM("local_port", SWITCH_CONFIG_INT, CONFIG_RELOADABLE, &li_globals.local_port,
......@@ -112,8 +124,6 @@ static switch_status_t do_config(switch_bool_t reload)
return SWITCH_STATUS_FALSE;
}
/* HAVE A LOOK AT switch_rtp.c LINE 746 and 796 FOR WIN32 COMPATIBILITY ! */
li_globals.socket = socket;
/* TEST SENDING A PACKET */
......@@ -136,22 +146,44 @@ static void reload_event_handler(switch_event_t *event)
do_config(SWITCH_TRUE);
}
//static switch_status_t gen_pcli_header(uint32_t *pcli_heqader, pcli_media_direction_t media_direction, int call_id, int switch_id, int ini_id)
static switch_status_t gen_pcli_header(uint32_t *pcli_header, uint8_t media_direction, uint16_t call_id, uint8_t switch_id, uint16_t ini_id)
{
*pcli_header = 0;
/* some sanity checks */
if (media_direction > 3) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Invalid media direction, may only be 0-3\n");
return SWITCH_STATUS_FALSE;
}
if (call_id > 1023) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Invalid call_id, may only be 0-1023\n");
return SWITCH_STATUS_FALSE;
}
if (switch_id > 15) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Invalid switch_id, may only be 0-15\n");
return SWITCH_STATUS_FALSE;
}
/* ini_id needs no check as it may use the full uint16_t */
*pcli_header |= (media_direction);
*pcli_header |= (call_id << 2);
*pcli_header |= (switch_id << 12);
*pcli_header |= (ini_id << 16);
return SWITCH_STATUS_SUCCESS;
}
/* necessary for hooking to SWITCH_EVENT_RELOADXML */
static switch_event_node_t *NODE = NULL;
static switch_bool_t li_callback(switch_media_bug_t *bug, void *user_data, switch_abc_type_t type)
{
// li_session_helper_t *li_session_helper = (li_session_helper_t *) user_data;
switch_size_t len;
switch_sockaddr_t *remote_sockaddr;
// switch_buffer_t *buffer = (switch_buffer_t *) user_data;
uint8_t data[SWITCH_RECOMMENDED_BUFFER_SIZE];
switch_frame_t frame = { 0 };
frame.data = data;
frame.buflen = SWITCH_RECOMMENDED_BUFFER_SIZE;
switch (type) {
case SWITCH_ABC_TYPE_INIT:
......@@ -168,19 +200,6 @@ static switch_bool_t li_callback(switch_media_bug_t *bug, void *user_data, switc
case SWITCH_ABC_TYPE_READ:
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "--> READ\n");
if (switch_sockaddr_info_get(&remote_sockaddr, li_globals.remote_addr, SWITCH_UNSPEC, li_globals.remote_port, 0, li_globals.pool) != SWITCH_STATUS_SUCCESS || !remote_sockaddr) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Remote Address Error!\n");
return SWITCH_STATUS_FALSE;
}
while (switch_core_media_bug_read(bug, &frame, SWITCH_TRUE) == SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "HUK SEQ[%u]!\n", (unsigned)frame.seq);
len = (switch_size_t) frame.datalen / 2;
if (len) switch_socket_sendto(li_globals.socket, remote_sockaddr, 0, frame.data, &len);
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "TILDE!\n");
break;
case SWITCH_ABC_TYPE_WRITE:
......@@ -188,11 +207,25 @@ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "TILDE!\n");
break;
case SWITCH_ABC_TYPE_READ_REPLACE:
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "--> READ_REPLACE\n");
{
switch_frame_t *rframe = switch_core_media_bug_get_read_replace_frame(bug);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "--> READ_REPLACE seq[%u] ssrc[%lu] packetlen[%lu] rate [%lu] samples [%lu]\n",
(unsigned)rframe->seq, (unsigned long)rframe->ssrc, (unsigned long)rframe->packetlen, (unsigned long)rframe->rate, (unsigned long)rframe->samples);
switch_size_t packetlength = sizeof(rframe->packet);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, ">>> [%lu]\n", (unsigned long)packetlength);
}
break;
case SWITCH_ABC_TYPE_WRITE_REPLACE:
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "--> WRITE_REPLACE\n");
{
switch_frame_t *rframe = switch_core_media_bug_get_write_replace_frame(bug);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "--> WRITE_REPLACE seq[%u] ssrc[%lu] packetlen[%lu] rate [%lu] samples[%lu]\n",
(unsigned)rframe->seq, (unsigned long)rframe->ssrc, (unsigned long)rframe->packetlen, (unsigned long)rframe->rate, (unsigned long)rframe->samples);
switch_size_t packetlength = sizeof(rframe->packet);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, ">>> [%lu]\n", (unsigned long)packetlength);
}
break;
}
......@@ -237,14 +270,17 @@ SWITCH_STANDARD_APP(li_start_function)
/* get LI_ID and store in li_session_helper */
if ((p = switch_channel_get_variable(channel, "LI_ID")) && switch_true(p)) {
li_session_helper->li_id = switch_core_session_strdup(session, p);
li_session_helper->ini_id = switch_core_session_strdup(session, p);
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "No LI_ID was set!\n");
return;
}
/* add the bug */
status = switch_core_media_bug_add(session, li_callback, li_session_helper, 0, SMBF_BOTH, &bug);
//status = switch_core_media_bug_add(session, li_callback, li_session_helper, 0, SMBF_BOTH, &bug);
//status = switch_core_media_bug_add(session, li_callback, li_session_helper, 0, SMBF_READ_STREAM | SMBF_WRITE_STREAM, &bug);
status = switch_core_media_bug_add(session, li_callback, li_session_helper, 0, SMBF_READ_REPLACE | SMBF_WRITE_REPLACE, &bug);
//status = switch_core_media_bug_add(session, li_callback, li_session_helper, 0, SMBF_READ_REPLACE, &bug);
if (status != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Failure hooking to stream\n");
......@@ -271,7 +307,7 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_li_load)
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
/* make the li application available to the system */
SWITCH_ADD_APP(app_interface, "li", "Legal Intercept", "Legal Intercept", li_start_function, "<start>", SAF_NONE);
SWITCH_ADD_APP(app_interface, "li", "Lawful Intercept", "Lawful Intercept", li_start_function, "<start>", SAF_NONE);
/* subscribe to reloadxml event, and hook it to reload_event_handler */
if ((switch_event_bind_removable(modname, SWITCH_EVENT_RELOADXML, NULL, reload_event_handler, NULL, &NODE) != SWITCH_STATUS_SUCCESS)) {
......@@ -280,7 +316,7 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_li_load)
}
/* say it */
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Legal Intercept enabled\n");
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Lawful Intercept enabled\n");
/* indicate that the module should continue to be loaded */
return SWITCH_STATUS_SUCCESS;
......@@ -289,7 +325,7 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_li_load)
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_li_shutdown)
{
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Legal Intercept disabled\n");
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Lawful Intercept disabled\n");
/* TODO DESTROY THE SOCKET HERE ! */
......
ledr/c/mod_li/li.conf.xml → ledr/c/mod_pcli/pcli.conf.xml
浏览文件 @ 04d69b07
<configuration name="li.conf" description="Legal Intercept Configuration">
<configuration name="li.conf" description="Lawful Intercept Configuration">
<settings>
<param name="switch_id" value="0"/>
<!-- <param name="method" value="bug"/> -->
<param name="local_addr" value="172.31.1.5"/>
<param name="local_port" value="8000"/>
<param name="remote_addr" value="172.31.1.4"/>
......
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