/*
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* Copyright (c) 2010-2019 Belledonne Communications SARL.
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*
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* This file is part of mediastreamer2.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MS_STUN_H
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#define MS_STUN_H
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#include <ortp/rtpsession.h>
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#include <mediastreamer2/mscommon.h>
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#define MS_STUN_MAX_MESSAGE_SIZE 2048
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#define MS_STUN_MAGIC_COOKIE 0x2112A442
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#define MS_STUN_ADDR_FAMILY_IPV4 0x01
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#define MS_STUN_ADDR_FAMILY_IPV6 0x02
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#define MS_STUN_TYPE_REQUEST 0x0000
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#define MS_STUN_TYPE_INDICATION 0x0010
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#define MS_STUN_TYPE_SUCCESS_RESPONSE 0x0100
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#define MS_STUN_TYPE_ERROR_RESPONSE 0x0110
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#define MS_STUN_METHOD_BINDING 0x001
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#define MS_STUN_METHOD_SHARED_SECRET 0x002 /* Deprecated, now reserved */
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#define MS_TURN_METHOD_ALLOCATE 0x003
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#define MS_TURN_METHOD_REFRESH 0x004
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#define MS_TURN_METHOD_SEND 0x006
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#define MS_TURN_METHOD_DATA 0x007
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#define MS_TURN_METHOD_CREATE_PERMISSION 0x008
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#define MS_TURN_METHOD_CHANNEL_BIND 0x009
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#define MS_STUN_ATTR_MAPPED_ADDRESS 0x0001
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#define MS_STUN_ATTR_RESPONSE_ADDRESS 0x0002 /* Deprecated, now reserved */
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#define MS_STUN_ATTR_CHANGE_REQUEST 0x0003 /* Deprecated, now reserved */
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#define MS_STUN_ATTR_SOURCE_ADDRESS 0x0004 /* Deprecated, now reserved */
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#define MS_STUN_ATTR_CHANGED_ADDRESS 0x0005 /* Deprecated, now reserved */
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#define MS_STUN_ATTR_USERNAME 0x0006
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#define MS_STUN_ATTR_PASSWORD 0x0007 /* Deprecated, now reserved */
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#define MS_STUN_ATTR_MESSAGE_INTEGRITY 0x0008
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#define MS_STUN_ATTR_ERROR_CODE 0x0009
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#define MS_STUN_ATTR_UNKNOWN_ATTRIBUTES 0x000A
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#define MS_STUN_ATTR_REFLECTED_FROM 0x000B
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#define MS_STUN_ATTR_REALM 0x0014
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#define MS_STUN_ATTR_NONCE 0x0015
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#define MS_STUN_ATTR_XOR_MAPPED_ADDRESS 0x0020
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#define MS_STUN_ATTR_SOFTWARE 0x8022
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#define MS_STUN_ATTR_ALTERNATE_SERVER 0x8023
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#define MS_STUN_ATTR_FINGERPRINT 0x8028
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#define MS_TURN_ATTR_CHANNEL_NUMBER 0x000C
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#define MS_TURN_ATTR_LIFETIME 0x000D
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#define MS_TURN_ATTR_BANDWIDTH 0x0010 /* Deprecated, now reserved */
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#define MS_TURN_ATTR_XOR_PEER_ADDRESS 0x0012
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#define MS_TURN_ATTR_DATA 0x0013
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#define MS_TURN_ATTR_XOR_RELAYED_ADDRESS 0x0016
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#define MS_TURN_ATTR_REQUESTED_ADDRESS_FAMILY 0x0017
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#define MS_TURN_ATTR_EVEN_PORT 0x0018
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#define MS_TURN_ATTR_REQUESTED_TRANSPORT 0x0019
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#define MS_TURN_ATTR_DONT_FRAGMENT 0x001A
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#define MS_TURN_ATTR_TIMER_VAL 0x0021 /* Deprecated, now reserved */
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#define MS_TURN_ATTR_RESERVATION_TOKEN 0x0022
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#define MS_ICE_ATTR_PRIORITY 0x0024
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#define MS_ICE_ATTR_USE_CANDIDATE 0x0025
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#define MS_ICE_ATTR_ICE_CONTROLLED 0x8029
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#define MS_ICE_ATTR_ICE_CONTROLLING 0x802A
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#define MS_STUN_ERROR_CODE_TRY_ALTERNATE 300
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#define MS_STUN_ERROR_CODE_BAD_REQUEST 400
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#define MS_STUN_ERROR_CODE_UNAUTHORIZED 401
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#define MS_STUN_ERROR_CODE_UNKNOWN_ATTRIBUTE 420
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#define MS_STUN_ERROR_CODE_STALE_NONCE 438
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#define MS_STUN_ERROR_CODE_SERVER_ERROR 500
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#define MS_TURN_ERROR_CODE_FORBIDDEN 403
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#define MS_TURN_ERROR_CODE_ALLOCATION_MISMATCH 437
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#define MS_TURN_ERROR_CODE_WRONG_CREDENTIALS 441
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#define MS_TURN_ERROR_CODE_UNSUPPORTED_TRANSPORT_PROTOCOL 442
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#define MS_TURN_ERROR_CODE_ALLOCATION_QUOTA_REACHED 486
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#define MS_TURN_ERROR_CODE_INSUFFICIENT_CAPACITY 508
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#define MS_ICE_ERROR_CODE_ROLE_CONFLICT 487
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typedef struct {
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uint16_t port;
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uint32_t addr;
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} MSStunAddress4;
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typedef struct {
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uint16_t port;
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UInt128 addr;
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} MSStunAddress6;
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typedef struct {
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union {
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MSStunAddress4 v4;
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MSStunAddress6 v6;
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} ip;
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uint8_t family;
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} MSStunAddress;
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typedef struct {
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char *reason;
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uint16_t number;
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} MSStunErrorCode;
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typedef struct {
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uint16_t type;
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uint16_t method;
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uint16_t length;
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UInt96 tr_id;
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uint8_t *data;
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char *username;
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char *password;
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char *ha1;
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char *realm;
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char *message_integrity;
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char *software;
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char *nonce;
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MSStunErrorCode error_code;
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MSStunAddress mapped_address;
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MSStunAddress xor_mapped_address;
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MSStunAddress xor_peer_address;
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MSStunAddress xor_relayed_address;
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uint32_t change_request;
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uint32_t fingerprint;
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uint32_t priority;
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uint64_t ice_controlling;
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uint64_t ice_controlled;
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uint32_t lifetime;
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uint16_t channel_number;
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uint16_t data_length;
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uint8_t requested_transport;
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uint8_t requested_address_family;
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bool_t include_username_attribute;
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bool_t has_error_code;
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bool_t has_message_integrity;
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bool_t has_dummy_message_integrity;
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bool_t has_fingerprint;
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bool_t has_mapped_address;
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bool_t has_xor_mapped_address;
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bool_t has_xor_peer_address;
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bool_t has_xor_relayed_address;
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bool_t has_priority;
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bool_t has_use_candidate;
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bool_t has_ice_controlling;
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bool_t has_ice_controlled;
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bool_t has_lifetime;
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bool_t has_channel_number;
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bool_t has_requested_transport;
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bool_t has_requested_address_family;
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bool_t own_data;
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} MSStunMessage;
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typedef enum {
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MS_TURN_CONTEXT_STATE_IDLE,
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MS_TURN_CONTEXT_STATE_CREATING_ALLOCATION,
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MS_TURN_CONTEXT_STATE_ALLOCATION_CREATED,
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MS_TURN_CONTEXT_STATE_CREATING_PERMISSIONS,
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MS_TURN_CONTEXT_STATE_PERMISSIONS_CREATED,
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MS_TURN_CONTEXT_STATE_BINDING_CHANNEL,
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MS_TURN_CONTEXT_STATE_CHANNEL_BOUND
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} MSTurnContextState;
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typedef enum {
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MS_TURN_CONTEXT_TYPE_RTP,
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MS_TURN_CONTEXT_TYPE_RTCP
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} MSTurnContextType;
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typedef enum {
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MS_TURN_CONTEXT_TRANSPORT_UDP,
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MS_TURN_CONTEXT_TRANSPORT_TCP,
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MS_TURN_CONTEXT_TRANSPORT_TLS
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} MSTurnContextTransport;
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typedef struct {
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uint32_t nb_send_indication;
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uint32_t nb_data_indication;
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uint32_t nb_received_channel_msg;
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uint32_t nb_sent_channel_msg;
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uint16_t nb_successful_allocate;
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uint16_t nb_successful_refresh;
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uint16_t nb_successful_create_permission;
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uint16_t nb_successful_channel_bind;
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} MSTurnContextStatistics;
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typedef struct {
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RtpSession *rtp_session;
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RtpTransport *endpoint;
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MSList *allowed_peer_addresses;
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char *realm;
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char *nonce;
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char *username;
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char *password;
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char *ha1;
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char *root_certificate;
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uint32_t lifetime;
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uint16_t channel_number;
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MSTurnContextState state;
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MSTurnContextType type;
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MSTurnContextTransport transport;
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MSStunAddress relay_addr;
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struct sockaddr_storage turn_server_addr;
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socklen_t turn_server_addrlen;
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bool_t force_rtp_sending_via_relay;
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MSTurnContextStatistics stats;
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struct _MSTurnTCPClient *turn_tcp_client;
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char *cn;
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} MSTurnContext;
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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typedef void (*MSStunAuthRequestedCb)(void *userdata, const char *realm, const char *nonce, const char **username, const char **password, const char **ha1);
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MS2_PUBLIC bool_t ms_compare_stun_addresses(const MSStunAddress *a1, const MSStunAddress *a2);
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MS2_PUBLIC int ms_stun_family_to_af(int stun_family);
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MS2_PUBLIC void ms_stun_address_to_sockaddr(const MSStunAddress *stun_addr, struct sockaddr *addr, socklen_t *addrlen);
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MS2_PUBLIC void ms_sockaddr_to_stun_address(const struct sockaddr *addr, MSStunAddress *stun_addr);
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MS2_PUBLIC MSStunAddress ms_ip_address_to_stun_address(int ai_family, int socktype, const char *hostname, int port);
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MS2_PUBLIC void ms_stun_address_to_ip_address(const MSStunAddress *stun_address, char *ip, size_t ip_size, int *port);
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MS2_PUBLIC void ms_stun_address_to_printable_ip_address(const MSStunAddress *stun_address, char *printable_ip, size_t printable_ip_size);
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MS2_PUBLIC char * ms_stun_calculate_integrity_short_term(const char *buf, size_t bufsize, const char *key);
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MS2_PUBLIC char * ms_stun_calculate_integrity_long_term(const char *buf, size_t bufsize, const char *realm, const char *username, const char *password);
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MS2_PUBLIC char * ms_stun_calculate_integrity_long_term_from_ha1(const char *buf, size_t bufsize, const char *ha1_text);
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MS2_PUBLIC uint32_t ms_stun_calculate_fingerprint(const char *buf, size_t bufsize);
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MS2_PUBLIC MSStunMessage * ms_stun_message_create(uint16_t type, uint16_t method);
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MS2_PUBLIC MSStunMessage * ms_stun_message_create_from_buffer_parsing(const uint8_t *buf, ssize_t bufsize);
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MS2_PUBLIC MSStunMessage * ms_stun_binding_request_create(void);
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MS2_PUBLIC MSStunMessage * ms_stun_binding_success_response_create(void);
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MS2_PUBLIC MSStunMessage * ms_stun_binding_error_response_create(void);
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MS2_PUBLIC MSStunMessage * ms_stun_binding_indication_create(void);
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MS2_PUBLIC bool_t ms_stun_message_is_request(const MSStunMessage *msg);
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MS2_PUBLIC bool_t ms_stun_message_is_success_response(const MSStunMessage *msg);
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MS2_PUBLIC bool_t ms_stun_message_is_error_response(const MSStunMessage *msg);
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MS2_PUBLIC bool_t ms_stun_message_is_indication(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_destroy(MSStunMessage *msg);
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MS2_PUBLIC size_t ms_stun_message_encode(const MSStunMessage *msg, char **buf);
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MS2_PUBLIC uint16_t ms_stun_message_get_method(const MSStunMessage *msg);
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MS2_PUBLIC uint16_t ms_stun_message_get_length(const MSStunMessage *msg);
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MS2_PUBLIC UInt96 ms_stun_message_get_tr_id(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_tr_id(MSStunMessage *msg, UInt96 tr_id);
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MS2_PUBLIC void ms_stun_message_set_random_tr_id(MSStunMessage *msg);
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MS2_PUBLIC const char * ms_stun_message_get_username(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_username(MSStunMessage *msg, const char *username);
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MS2_PUBLIC void ms_stun_message_include_username_attribute(MSStunMessage *msg, bool_t include);
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MS2_PUBLIC const char * ms_stun_message_get_password(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_password(MSStunMessage *msg, const char *password);
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MS2_PUBLIC void ms_stun_message_set_ha1(MSStunMessage *msg, const char *ha1_text);
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MS2_PUBLIC const char * ms_stun_message_get_realm(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_realm(MSStunMessage *msg, const char *realm);
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MS2_PUBLIC const char * ms_stun_message_get_software(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_software(MSStunMessage *msg, const char *software);
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MS2_PUBLIC const char * ms_stun_message_get_nonce(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_nonce(MSStunMessage *msg, const char *nonce);
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MS2_PUBLIC bool_t ms_stun_message_has_error_code(const MSStunMessage *msg);
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MS2_PUBLIC uint16_t ms_stun_message_get_error_code(const MSStunMessage *msg, char **reason);
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MS2_PUBLIC void ms_stun_message_set_error_code(MSStunMessage *msg, uint16_t number, const char *reason);
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MS2_PUBLIC bool_t ms_stun_message_message_integrity_enabled(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_enable_message_integrity(MSStunMessage *msg, bool_t enable);
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MS2_PUBLIC const char * ms_stun_message_get_message_integrity(const MSStunMessage *msg);
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MS2_PUBLIC bool_t ms_stun_message_fingerprint_enabled(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_enable_fingerprint(MSStunMessage *msg, bool_t enable);
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MS2_PUBLIC const MSStunAddress * ms_stun_message_get_mapped_address(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_mapped_address(MSStunMessage *msg, MSStunAddress mapped_address);
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MS2_PUBLIC const MSStunAddress * ms_stun_message_get_xor_mapped_address(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_xor_mapped_address(MSStunMessage *msg, MSStunAddress xor_mapped_address);
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MS2_PUBLIC const MSStunAddress * ms_stun_message_get_xor_peer_address(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_xor_peer_address(MSStunMessage *msg, MSStunAddress xor_peer_address);
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MS2_PUBLIC const MSStunAddress * ms_stun_message_get_xor_relayed_address(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_xor_relayed_address(MSStunMessage *msg, MSStunAddress xor_relayed_address);
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MS2_PUBLIC void ms_stun_message_enable_change_ip(MSStunMessage *msg, bool_t enable);
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MS2_PUBLIC void ms_stun_message_enable_change_port(MSStunMessage *msg, bool_t enable);
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MS2_PUBLIC bool_t ms_stun_message_has_priority(const MSStunMessage *msg);
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MS2_PUBLIC uint32_t ms_stun_message_get_priority(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_priority(MSStunMessage *msg, uint32_t priority);
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MS2_PUBLIC bool_t ms_stun_message_use_candidate_enabled(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_enable_use_candidate(MSStunMessage *msg, bool_t enable);
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MS2_PUBLIC bool_t ms_stun_message_has_ice_controlling(const MSStunMessage *msg);
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MS2_PUBLIC uint64_t ms_stun_message_get_ice_controlling(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_ice_controlling(MSStunMessage *msg, uint64_t value);
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MS2_PUBLIC bool_t ms_stun_message_has_ice_controlled(const MSStunMessage *msg);
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MS2_PUBLIC uint64_t ms_stun_message_get_ice_controlled(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_ice_controlled(MSStunMessage *msg, uint64_t value);
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MS2_PUBLIC bool_t ms_stun_message_dummy_message_integrity_enabled(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_enable_dummy_message_integrity(MSStunMessage *msg, bool_t enable);
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MS2_PUBLIC MSStunMessage * ms_turn_allocate_request_create(void);
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MS2_PUBLIC MSStunMessage * ms_turn_refresh_request_create(uint32_t lifetime);
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MS2_PUBLIC MSStunMessage * ms_turn_create_permission_request_create(MSStunAddress peer_address);
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MS2_PUBLIC MSStunMessage * ms_turn_send_indication_create(MSStunAddress peer_address);
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MS2_PUBLIC MSStunMessage * ms_turn_channel_bind_request_create(MSStunAddress peer_address, uint16_t channel_number);
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MS2_PUBLIC bool_t ms_stun_message_has_requested_transport(const MSStunMessage *msg);
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MS2_PUBLIC uint8_t ms_stun_message_get_requested_transport(const MSStunMessage *msg);
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MS2_PUBLIC bool_t ms_stun_message_has_requested_address_family(const MSStunMessage *msg);
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MS2_PUBLIC uint8_t ms_stun_message_get_requested_address_family(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_requested_address_family(MSStunMessage *msg, uint8_t family);
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MS2_PUBLIC bool_t ms_stun_message_has_lifetime(const MSStunMessage *msg);
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MS2_PUBLIC uint32_t ms_stun_message_get_lifetime(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_lifetime(MSStunMessage *msg, uint32_t lifetime);
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MS2_PUBLIC bool_t ms_stun_message_has_channel_number(const MSStunMessage *msg);
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MS2_PUBLIC uint16_t ms_stun_message_get_channel_number(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_channel_number(MSStunMessage *msg, uint16_t channel_number);
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MS2_PUBLIC uint8_t * ms_stun_message_get_data(const MSStunMessage *msg);
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MS2_PUBLIC uint16_t ms_stun_message_get_data_length(const MSStunMessage *msg);
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MS2_PUBLIC void ms_stun_message_set_data(MSStunMessage *msg, uint8_t *data, uint16_t length);
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MS2_PUBLIC MSTurnContext * ms_turn_context_new(MSTurnContextType type, RtpSession *rtp_session);
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MS2_PUBLIC void ms_turn_context_destroy(MSTurnContext *context);
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MS2_PUBLIC void ms_turn_context_set_server_addr(MSTurnContext *context, struct sockaddr *addr, socklen_t addrlen);
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MS2_PUBLIC MSTurnContextState ms_turn_context_get_state(const MSTurnContext *context);
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MS2_PUBLIC void ms_turn_context_set_state(MSTurnContext *context, MSTurnContextState state);
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MS2_PUBLIC MSTurnContextTransport ms_turn_get_transport_from_string(const char *transport);
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MS2_PUBLIC MSTurnContextTransport ms_turn_context_get_transport(const MSTurnContext *context);
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MS2_PUBLIC void ms_turn_context_set_transport(MSTurnContext *context, MSTurnContextTransport transport);
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MS2_PUBLIC const char * ms_turn_context_get_realm(const MSTurnContext *context);
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MS2_PUBLIC void ms_turn_context_set_realm(MSTurnContext *context, const char *realm);
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MS2_PUBLIC const char * ms_turn_context_get_nonce(const MSTurnContext *context);
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MS2_PUBLIC void ms_turn_context_set_nonce(MSTurnContext *context, const char *nonce);
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MS2_PUBLIC const char * ms_turn_context_get_username(const MSTurnContext *context);
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MS2_PUBLIC void ms_turn_context_set_username(MSTurnContext *context, const char *username);
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MS2_PUBLIC const char * ms_turn_context_get_password(const MSTurnContext *context);
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MS2_PUBLIC void ms_turn_context_set_password(MSTurnContext *context, const char *password);
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MS2_PUBLIC const char * ms_turn_context_get_ha1(const MSTurnContext *context);
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MS2_PUBLIC void ms_turn_context_set_ha1(MSTurnContext *context, const char *ha1);
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MS2_PUBLIC uint32_t ms_turn_context_get_lifetime(const MSTurnContext *context);
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MS2_PUBLIC void ms_turn_context_set_lifetime(MSTurnContext *context, uint32_t lifetime);
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MS2_PUBLIC uint16_t ms_turn_context_get_channel_number(const MSTurnContext *context);
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MS2_PUBLIC void ms_turn_context_set_channel_number(MSTurnContext *context, uint16_t channel_number);
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MS2_PUBLIC void ms_turn_context_set_allocated_relay_addr(MSTurnContext *context, MSStunAddress relay_addr);
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MS2_PUBLIC void ms_turn_context_set_force_rtp_sending_via_relay(MSTurnContext *context, bool_t force);
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MS2_PUBLIC void ms_turn_context_set_root_certificate(MSTurnContext *context, const char *root_certificate);
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MS2_PUBLIC void ms_turn_context_set_cn(MSTurnContext *context, const char *cn);
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MS2_PUBLIC bool_t ms_turn_context_peer_address_allowed(const MSTurnContext *context, const MSStunAddress *peer_address);
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MS2_PUBLIC void ms_turn_context_allow_peer_address(MSTurnContext *context, const MSStunAddress *peer_address);
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MS2_PUBLIC RtpTransport * ms_turn_context_create_endpoint(MSTurnContext *context);
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typedef struct _MSTurnTCPClient MSTurnTCPClient;
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MS2_PUBLIC MSTurnTCPClient* ms_turn_tcp_client_new(MSTurnContext *context, bool_t use_ssl, const char* root_certificate_path);
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MS2_PUBLIC void ms_turn_tcp_client_destroy(MSTurnTCPClient *turn_tcp_client);
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MS2_PUBLIC void ms_turn_tcp_client_connect(MSTurnTCPClient *turn_tcp_client);
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MS2_PUBLIC int ms_turn_tcp_client_recvfrom(MSTurnTCPClient *turn_tcp_client, mblk_t *msg, int flags, struct sockaddr *from, socklen_t *fromlen);
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MS2_PUBLIC int ms_turn_tcp_client_sendto(MSTurnTCPClient *turn_tcp_client, mblk_t *msg, int flags, const struct sockaddr *to, socklen_t tolen);
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#ifdef __cplusplus
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}
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#endif
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#endif /* MS_STUN_H */
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