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asterisk/res/res_hep.c

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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 1999 - 2014, Digium, Inc.
*
* Alexandr Dubovikov <alexandr.dubovikov@sipcapture.org>
* Matt Jordan <mjordan@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*!
* \file
* \brief Routines for integration with Homer using HEPv3
*
* \author Alexandr Dubovikov <alexandr.dubovikov@sipcapture.org>
* \author Matt Jordan <mjordan@digium.com>
*
*/
/*!
* \li \ref res_hep.c uses the configuration file \ref hep.conf
* \addtogroup configuration_file Configuration Files
*/
/*!
* \page hep.conf hep.conf
* \verbinclude hep.conf.sample
*/
/*** MODULEINFO
<support_level>extended</support_level>
***/
/*** DOCUMENTATION
<configInfo name="res_hep" language="en_US">
<synopsis>Resource for integration with Homer using HEPv3</synopsis>
<configFile name="hep.conf">
<configObject name="general">
<synopsis>General settings.</synopsis>
<description><para>
The <emphasis>general</emphasis> settings section contains information
to configure Asterisk as a Homer capture agent.
</para>
</description>
<configOption name="enabled" default="yes">
<synopsis>Enable or disable packet capturing.</synopsis>
<description>
<enumlist>
<enum name="no" />
<enum name="yes" />
</enumlist>
</description>
</configOption>
<configOption name="uuid_type" default="call-id">
<synopsis>The preferred type of UUID to pass to Homer.</synopsis>
<description>
<enumlist>
<enum name="call-id"><para>Use the PJSIP Call-Id</para></enum>
<enum name="channel"><para>Use the Asterisk channel name</para></enum>
</enumlist>
</description>
</configOption>
<configOption name="capture_address">
<synopsis>The address and port of the Homer server to send packets to.</synopsis>
</configOption>
<configOption name="capture_password">
<synopsis>If set, the authentication password to send to Homer.</synopsis>
</configOption>
<configOption name="capture_id" default="0">
<synopsis>The ID for this capture agent.</synopsis>
</configOption>
</configObject>
</configFile>
</configInfo>
***/
#include "asterisk.h"
#include "asterisk/module.h"
#include "asterisk/astobj2.h"
#include "asterisk/config_options.h"
#include "asterisk/taskprocessor.h"
#include "asterisk/res_hep.h"
#include <netinet/ip.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>
#include <netinet/ip6.h>
/*! Generic vendor ID. Used for HEPv3 standard packets */
#define GENERIC_VENDOR_ID 0x0000
/*! Asterisk vendor ID. Used for custom data to send to a capture node */
#define ASTERISK_VENDOR_ID 0x0004
/*! Chunk types from the HEPv3 Spec */
enum hepv3_chunk_types {
/*! THE IP PROTOCOL FAMILY */
CHUNK_TYPE_IP_PROTOCOL_FAMILY = 0X0001,
/*! THE IP PROTOCOL ID (UDP, TCP, ETC.) */
CHUNK_TYPE_IP_PROTOCOL_ID = 0X0002,
/*! IF IPV4, THE SOURCE ADDRESS */
CHUNK_TYPE_IPV4_SRC_ADDR = 0X0003,
/*! IF IPV4, THE DESTINATION ADDRESS */
CHUNK_TYPE_IPV4_DST_ADDR = 0X0004,
/*! IF IPV6, THE SOURCE ADDRESS */
CHUNK_TYPE_IPV6_SRC_ADDR = 0X0005,
/*! IF IPV6, THE DESTINATION ADDRESS */
CHUNK_TYPE_IPV6_DST_ADDR = 0X0006,
/*! THE SOURCE PORT */
CHUNK_TYPE_SRC_PORT = 0X0007,
/*! THE DESTINATION PORT */
CHUNK_TYPE_DST_PORT = 0X0008,
/*! THE CAPTURE TIME (SECONDS) */
CHUNK_TYPE_TIMESTAMP_SEC = 0X0009,
/*! THE CAPTURE TIME (MICROSECONDS) */
CHUNK_TYPE_TIMESTAMP_USEC = 0X000A,
/*! THE PROTOCOL PACKET TYPE. SEE /REF HEPV3_CAPTURE_TYPE */
CHUNK_TYPE_PROTOCOL_TYPE = 0X000B,
/*! OUR CAPTURE AGENT ID */
CHUNK_TYPE_CAPTURE_AGENT_ID = 0X000C,
/*! A KEEP ALIVE TIMER */
CHUNK_TYPE_KEEP_ALIVE_TIMER = 0X000D,
/*! THE CAPTURE_PASSWORD IF DEFINED */
CHUNK_TYPE_AUTH_KEY = 0X000E,
/*! THE ONE AND ONLY PAYLOAD */
CHUNK_TYPE_PAYLOAD = 0X000F,
/*! THE ONE AND ONLY (ZIPPED) PAYLOAD */
CHUNK_TYPE_PAYLOAD_ZIP = 0X0010,
/*! THE UUID FOR THIS PACKET */
CHUNK_TYPE_UUID = 0X0011,
};
#define INITIALIZE_GENERIC_HEP_IDS(hep_chunk, type) do { \
(hep_chunk)->vendor_id = htons(GENERIC_VENDOR_ID); \
(hep_chunk)->type_id = htons((type)); \
} while (0)
#define INITIALIZE_GENERIC_HEP_IDS_VAR(hep_chunk, type, len) do { \
INITIALIZE_GENERIC_HEP_IDS((hep_chunk), (type)); \
(hep_chunk)->length = htons(sizeof(*(hep_chunk)) + len); \
} while (0)
#define INITIALIZE_GENERIC_HEP_CHUNK(hep_item, type) do { \
INITIALIZE_GENERIC_HEP_IDS(&(hep_item)->chunk, (type)); \
(hep_item)->chunk.length = htons(sizeof(*(hep_item))); \
} while (0)
#define INITIALIZE_GENERIC_HEP_CHUNK_DATA(hep_item, type, value) do { \
INITIALIZE_GENERIC_HEP_CHUNK((hep_item), (type)); \
(hep_item)->data = (value); \
} while (0)
/*
* HEPv3 Types.
* Note that the content in these is stored in network byte order.
*/
struct hep_chunk {
u_int16_t vendor_id;
u_int16_t type_id;
u_int16_t length;
} __attribute__((packed));
struct hep_chunk_uint8 {
struct hep_chunk chunk;
u_int8_t data;
} __attribute__((packed));
struct hep_chunk_uint16 {
struct hep_chunk chunk;
u_int16_t data;
} __attribute__((packed));
struct hep_chunk_uint32 {
struct hep_chunk chunk;
u_int32_t data;
} __attribute__((packed));
struct hep_chunk_ip4 {
struct hep_chunk chunk;
struct in_addr data;
} __attribute__((packed));
struct hep_chunk_ip6 {
struct hep_chunk chunk;
struct in6_addr data;
} __attribute__((packed));
struct hep_ctrl {
char id[4];
u_int16_t length;
} __attribute__((packed));
/* HEP structures */
struct hep_generic {
struct hep_ctrl header;
struct hep_chunk_uint8 ip_family;
struct hep_chunk_uint8 ip_proto;
struct hep_chunk_uint16 src_port;
struct hep_chunk_uint16 dst_port;
struct hep_chunk_uint32 time_sec;
struct hep_chunk_uint32 time_usec;
struct hep_chunk_uint8 proto_t;
struct hep_chunk_uint32 capt_id;
} __attribute__((packed));
/*! \brief Global configuration for the module */
struct hepv3_global_config {
unsigned int enabled; /*!< Whether or not sending is enabled */
unsigned int capture_id; /*!< Capture ID for this agent */
enum hep_uuid_type uuid_type; /*!< The preferred type of the UUID */
AST_DECLARE_STRING_FIELDS(
AST_STRING_FIELD(capture_address); /*!< Address to send to */
AST_STRING_FIELD(capture_password); /*!< Password for Homer server */
);
};
/*! \brief The actual module config */
struct module_config {
struct hepv3_global_config *general; /*!< The general config settings */
};
/*! \brief Run-time data derived from \ref hepv3_global_config */
struct hepv3_runtime_data {
struct ast_sockaddr remote_addr; /*!< The address to send to */
int sockfd; /*!< The socket file descriptor */
};
static struct aco_type global_option = {
.type = ACO_GLOBAL,
.name = "general",
.item_offset = offsetof(struct module_config, general),
.category_match = ACO_WHITELIST_EXACT,
.category = "general",
};
struct aco_type *global_options[] = ACO_TYPES(&global_option);
struct aco_file hepv3_conf = {
.filename = "hep.conf",
.types = ACO_TYPES(&global_option),
};
/*! \brief The module configuration container */
static AO2_GLOBAL_OBJ_STATIC(global_config);
/*! \brief Current module data */
static AO2_GLOBAL_OBJ_STATIC(global_data);
static struct ast_taskprocessor *hep_queue_tp;
static void *module_config_alloc(void);
static int hepv3_config_pre_apply(void);
static void hepv3_config_post_apply(void);
/*! \brief Register information about the configs being processed by this module */
CONFIG_INFO_STANDARD(cfg_info, global_config, module_config_alloc,
.files = ACO_FILES(&hepv3_conf),
.pre_apply_config = hepv3_config_pre_apply,
.post_apply_config = hepv3_config_post_apply,
);
static void hepv3_config_dtor(void *obj)
{
struct hepv3_global_config *config = obj;
ast_string_field_free_memory(config);
}
/*! \brief HEPv3 configuration object allocation */
static void *hepv3_config_alloc(void)
{
struct hepv3_global_config *config;
config = ao2_alloc(sizeof(*config), hepv3_config_dtor);
if (!config || ast_string_field_init(config, 32)) {
return NULL;
}
return config;
}
/*! \brief Configuration object destructor */
static void module_config_dtor(void *obj)
{
struct module_config *config = obj;
if (config->general) {
ao2_ref(config->general, -1);
}
}
/*! \brief Module config constructor */
static void *module_config_alloc(void)
{
struct module_config *config;
config = ao2_alloc(sizeof(*config), module_config_dtor);
if (!config) {
return NULL;
}
config->general = hepv3_config_alloc();
if (!config->general) {
ao2_ref(config, -1);
config = NULL;
}
return config;
}
/*! \brief Handler for the uuid_type attribute */
static int uuid_type_handler(const struct aco_option *opt, struct ast_variable *var, void *obj)
{
struct hepv3_global_config *global_config = obj;
if (strcasecmp(var->name, "uuid_type")) {
return -1;
}
if (!strcasecmp(var->value, "channel")) {
global_config->uuid_type = HEP_UUID_TYPE_CHANNEL;
} else if (!strcasecmp(var->value, "call-id")) {
global_config->uuid_type = HEP_UUID_TYPE_CALL_ID;
} else {
return -1;
}
return 0;
}
/*! \brief HEPv3 run-time data destructor */
static void hepv3_data_dtor(void *obj)
{
struct hepv3_runtime_data *data = obj;
if (data->sockfd > -1) {
close(data->sockfd);
data->sockfd = -1;
}
}
/*! \brief Allocate the HEPv3 run-time data */
static struct hepv3_runtime_data *hepv3_data_alloc(struct hepv3_global_config *config)
{
struct hepv3_runtime_data *data;
data = ao2_alloc(sizeof(*data), hepv3_data_dtor);
if (!data) {
return NULL;
}
data->sockfd = -1;
if (ast_sockaddr_resolve_first_af(&data->remote_addr, config->capture_address, PARSE_PORT_REQUIRE, AST_AF_UNSPEC)) {
ast_log(AST_LOG_WARNING, "Failed to create address from %s\n", config->capture_address);
ao2_ref(data, -1);
return NULL;
}
data->sockfd = socket(ast_sockaddr_is_ipv6(&data->remote_addr) ? AF_INET6 : AF_INET, SOCK_DGRAM, 0);
if (data->sockfd < 0) {
ast_log(AST_LOG_WARNING, "Failed to create socket for address %s: %s\n",
config->capture_address, strerror(errno));
ao2_ref(data, -1);
return NULL;
}
return data;
}
/*! \brief Destructor for a \ref hepv3_capture_info object */
static void capture_info_dtor(void *obj)
{
struct hepv3_capture_info *info = obj;
ast_free(info->uuid);
ast_free(info->payload);
}
enum hep_uuid_type hepv3_get_uuid_type(void)
{
RAII_VAR(struct module_config *, config, ao2_global_obj_ref(global_config), ao2_cleanup);
if (!config) {
/* Well, that's unfortunate. Return something. */
return HEP_UUID_TYPE_CALL_ID;
}
return config->general->uuid_type;
}
int hepv3_is_loaded(void)
{
RAII_VAR(struct module_config *, config, ao2_global_obj_ref(global_config), ao2_cleanup);
return config && config->general->enabled;
}
struct hepv3_capture_info *hepv3_create_capture_info(const void *payload, size_t len)
{
struct hepv3_capture_info *info;
info = ao2_alloc(sizeof(*info), capture_info_dtor);
if (!info) {
return NULL;
}
info->payload = ast_malloc(len);
if (!info->payload) {
ao2_ref(info, -1);
return NULL;
}
memcpy(info->payload, payload, len);
info->len = len;
/* Set a reasonable default */
info->protocol_id = IPPROTO_UDP;
return info;
}
/*! \brief Callback function for the \ref hep_queue_tp taskprocessor */
static int hep_queue_cb(void *data)
{
RAII_VAR(struct module_config *, config, ao2_global_obj_ref(global_config), ao2_cleanup);
RAII_VAR(struct hepv3_runtime_data *, hepv3_data, ao2_global_obj_ref(global_data), ao2_cleanup);
RAII_VAR(struct hepv3_capture_info *, capture_info, data, ao2_cleanup);
struct hep_generic hg_pkt;
unsigned int packet_len = 0, sock_buffer_len;
struct hep_chunk_ip4 ipv4_src, ipv4_dst;
struct hep_chunk_ip6 ipv6_src, ipv6_dst;
struct hep_chunk auth_key, payload, uuid;
void *sock_buffer;
int res;
if (!capture_info || !config || !hepv3_data) {
return 0;
}
if (ast_sockaddr_is_ipv4(&capture_info->src_addr) != ast_sockaddr_is_ipv4(&capture_info->dst_addr)) {
ast_log(AST_LOG_NOTICE, "Unable to send packet: Address Family mismatch between source/destination\n");
return -1;
}
packet_len = sizeof(hg_pkt);
/* Build HEPv3 header, capture info, and calculate the total packet size */
memcpy(hg_pkt.header.id, "\x48\x45\x50\x33", 4);
INITIALIZE_GENERIC_HEP_CHUNK_DATA(&hg_pkt.ip_proto, CHUNK_TYPE_IP_PROTOCOL_ID, capture_info->protocol_id);
INITIALIZE_GENERIC_HEP_CHUNK_DATA(&hg_pkt.src_port, CHUNK_TYPE_SRC_PORT, htons(ast_sockaddr_port(&capture_info->src_addr)));
INITIALIZE_GENERIC_HEP_CHUNK_DATA(&hg_pkt.dst_port, CHUNK_TYPE_DST_PORT, htons(ast_sockaddr_port(&capture_info->dst_addr)));
INITIALIZE_GENERIC_HEP_CHUNK_DATA(&hg_pkt.time_sec, CHUNK_TYPE_TIMESTAMP_SEC, htonl(capture_info->capture_time.tv_sec));
INITIALIZE_GENERIC_HEP_CHUNK_DATA(&hg_pkt.time_usec, CHUNK_TYPE_TIMESTAMP_USEC, htonl(capture_info->capture_time.tv_usec));
INITIALIZE_GENERIC_HEP_CHUNK_DATA(&hg_pkt.proto_t, CHUNK_TYPE_PROTOCOL_TYPE, capture_info->capture_type);
INITIALIZE_GENERIC_HEP_CHUNK_DATA(&hg_pkt.capt_id, CHUNK_TYPE_CAPTURE_AGENT_ID, htonl(config->general->capture_id));
if (ast_sockaddr_is_ipv4(&capture_info->src_addr)) {
INITIALIZE_GENERIC_HEP_CHUNK_DATA(&hg_pkt.ip_family,
CHUNK_TYPE_IP_PROTOCOL_FAMILY, AF_INET);
INITIALIZE_GENERIC_HEP_CHUNK(&ipv4_src, CHUNK_TYPE_IPV4_SRC_ADDR);
inet_pton(AF_INET, ast_sockaddr_stringify_addr(&capture_info->src_addr), &ipv4_src.data);
INITIALIZE_GENERIC_HEP_CHUNK(&ipv4_dst, CHUNK_TYPE_IPV4_DST_ADDR);
inet_pton(AF_INET, ast_sockaddr_stringify_addr(&capture_info->dst_addr), &ipv4_dst.data);
packet_len += (sizeof(ipv4_src) + sizeof(ipv4_dst));
} else {
INITIALIZE_GENERIC_HEP_CHUNK_DATA(&hg_pkt.ip_family,
CHUNK_TYPE_IP_PROTOCOL_FAMILY, AF_INET6);
INITIALIZE_GENERIC_HEP_CHUNK(&ipv6_src, CHUNK_TYPE_IPV6_SRC_ADDR);
inet_pton(AF_INET6, ast_sockaddr_stringify_addr(&capture_info->src_addr), &ipv6_src.data);
INITIALIZE_GENERIC_HEP_CHUNK(&ipv6_dst, CHUNK_TYPE_IPV6_DST_ADDR);
inet_pton(AF_INET6, ast_sockaddr_stringify_addr(&capture_info->dst_addr), &ipv6_dst.data);
packet_len += (sizeof(ipv6_src) + sizeof(ipv6_dst));
}
if (!ast_strlen_zero(config->general->capture_password)) {
INITIALIZE_GENERIC_HEP_IDS_VAR(&auth_key, CHUNK_TYPE_AUTH_KEY, strlen(config->general->capture_password));
packet_len += (sizeof(auth_key) + strlen(config->general->capture_password));
}
INITIALIZE_GENERIC_HEP_IDS_VAR(&uuid, CHUNK_TYPE_UUID, strlen(capture_info->uuid));
packet_len += (sizeof(uuid) + strlen(capture_info->uuid));
INITIALIZE_GENERIC_HEP_IDS_VAR(&payload,
capture_info->zipped ? CHUNK_TYPE_PAYLOAD_ZIP : CHUNK_TYPE_PAYLOAD, capture_info->len);
packet_len += (sizeof(payload) + capture_info->len);
hg_pkt.header.length = htons(packet_len);
/* Build the buffer to send */
sock_buffer = ast_malloc(packet_len);
if (!sock_buffer) {
return -1;
}
/* Copy in the header */
memcpy(sock_buffer, &hg_pkt, sizeof(hg_pkt));
sock_buffer_len = sizeof(hg_pkt);
/* Addresses */
if (ast_sockaddr_is_ipv4(&capture_info->src_addr)) {
memcpy(sock_buffer + sock_buffer_len, &ipv4_src, sizeof(ipv4_src));
sock_buffer_len += sizeof(ipv4_src);
memcpy(sock_buffer + sock_buffer_len, &ipv4_dst, sizeof(ipv4_dst));
sock_buffer_len += sizeof(ipv4_dst);
} else {
memcpy(sock_buffer + sock_buffer_len, &ipv6_src, sizeof(ipv6_src));
sock_buffer_len += sizeof(ipv6_src);
memcpy(sock_buffer + sock_buffer_len, &ipv6_dst, sizeof(ipv6_dst));
sock_buffer_len += sizeof(ipv6_dst);
}
/* Auth Key */
if (!ast_strlen_zero(config->general->capture_password)) {
memcpy(sock_buffer + sock_buffer_len, &auth_key, sizeof(auth_key));
sock_buffer_len += sizeof(auth_key);
memcpy(sock_buffer + sock_buffer_len, config->general->capture_password, strlen(config->general->capture_password));
sock_buffer_len += strlen(config->general->capture_password);
}
/* UUID */
memcpy(sock_buffer + sock_buffer_len, &uuid, sizeof(uuid));
sock_buffer_len += sizeof(uuid);
memcpy(sock_buffer + sock_buffer_len, capture_info->uuid, strlen(capture_info->uuid));
sock_buffer_len += strlen(capture_info->uuid);
/* Packet! */
memcpy(sock_buffer + sock_buffer_len, &payload, sizeof(payload));
sock_buffer_len += sizeof(payload);
memcpy(sock_buffer + sock_buffer_len, capture_info->payload, capture_info->len);
sock_buffer_len += capture_info->len;
ast_assert(sock_buffer_len == packet_len);
res = ast_sendto(hepv3_data->sockfd, sock_buffer, sock_buffer_len, 0, &hepv3_data->remote_addr);
if (res < 0) {
ast_log(AST_LOG_ERROR, "Error [%d] while sending packet to HEPv3 server: %s\n",
errno, strerror(errno));
} else if (res != sock_buffer_len) {
ast_log(AST_LOG_WARNING, "Failed to send complete packet to HEPv3 server: %d of %u sent\n",
res, sock_buffer_len);
res = -1;
}
ast_free(sock_buffer);
return res;
}
int hepv3_send_packet(struct hepv3_capture_info *capture_info)
{
RAII_VAR(struct module_config *, config, ao2_global_obj_ref(global_config), ao2_cleanup);
int res;
if (!config || !config->general->enabled) {
ao2_ref(capture_info, -1);
return 0;
}
res = ast_taskprocessor_push(hep_queue_tp, hep_queue_cb, capture_info);
if (res == -1) {
ao2_ref(capture_info, -1);
}
return res;
}
/*!
* \brief Pre-apply callback for the config framework.
*
* This validates that required fields exist and are populated.
*/
static int hepv3_config_pre_apply(void)
{
struct module_config *config = aco_pending_config(&cfg_info);
if (!config->general->enabled) {
/* If we're not enabled, we don't care about anything else */
return 0;
}
if (ast_strlen_zero(config->general->capture_address)) {
ast_log(AST_LOG_ERROR, "Missing required configuration option 'capture_address'\n");
return -1;
}
return 0;
}
/*!
* \brief Post-apply callback for the config framework.
*
* This will create the run-time information from the supplied
* configuration.
*/
static void hepv3_config_post_apply(void)
{
RAII_VAR(struct module_config *, mod_cfg, ao2_global_obj_ref(global_config), ao2_cleanup);
struct hepv3_runtime_data *data;
data = hepv3_data_alloc(mod_cfg->general);
if (!data) {
return;
}
ao2_global_obj_replace_unref(global_data, data);
ao2_ref(data, -1);
}
/*!
* \brief Reload the module
*/
static int reload_module(void)
{
if (aco_process_config(&cfg_info, 1) == ACO_PROCESS_ERROR) {
return -1;
}
return 0;
}
/*!
* \brief Unload the module
*/
static int unload_module(void)
{
hep_queue_tp = ast_taskprocessor_unreference(hep_queue_tp);
ao2_global_obj_release(global_config);
ao2_global_obj_release(global_data);
aco_info_destroy(&cfg_info);
return 0;
}
/*!
* \brief Load the module
*/
static int load_module(void)
{
if (aco_info_init(&cfg_info)) {
goto error;
}
hep_queue_tp = ast_taskprocessor_get("hep_queue_tp", TPS_REF_DEFAULT);
if (!hep_queue_tp) {
goto error;
}
aco_option_register(&cfg_info, "enabled", ACO_EXACT, global_options, "yes", OPT_BOOL_T, 1, FLDSET(struct hepv3_global_config, enabled));
aco_option_register(&cfg_info, "capture_address", ACO_EXACT, global_options, "", OPT_STRINGFIELD_T, 1, STRFLDSET(struct hepv3_global_config, capture_address));
aco_option_register(&cfg_info, "capture_password", ACO_EXACT, global_options, "", OPT_STRINGFIELD_T, 0, STRFLDSET(struct hepv3_global_config, capture_password));
aco_option_register(&cfg_info, "capture_id", ACO_EXACT, global_options, "0", OPT_UINT_T, 0, STRFLDSET(struct hepv3_global_config, capture_id));
aco_option_register_custom(&cfg_info, "uuid_type", ACO_EXACT, global_options, "call-id", uuid_type_handler, 0);
if (aco_process_config(&cfg_info, 0) == ACO_PROCESS_ERROR) {
goto error;
}
return AST_MODULE_LOAD_SUCCESS;
error:
aco_info_destroy(&cfg_info);
return AST_MODULE_LOAD_DECLINE;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS | AST_MODFLAG_LOAD_ORDER, "HEPv3 API",
.support_level = AST_MODULE_SUPPORT_EXTENDED,
.load = load_module,
.unload = unload_module,
.reload = reload_module,
.load_pri = AST_MODPRI_APP_DEPEND,
);
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