236 lines
7.7 KiB
C
236 lines
7.7 KiB
C
/*
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* Copyright (C) 2011, 2012, 2013 Citrix Systems
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef __TURN_SERVER__
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#define __TURN_SERVER__
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#include "ns_turn_utils.h"
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#include "ns_turn_session.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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//////////// defines //////////////
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#define TURN_SESSION_ID_FACTOR (1000000000000000LL)
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//////////// ALTERNATE-SERVER /////////////
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struct _turn_server_addrs_list {
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ioa_addr *addrs;
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volatile size_t size;
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turn_mutex m;
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};
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typedef struct _turn_server_addrs_list turn_server_addrs_list_t;
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void init_turn_server_addrs_list(turn_server_addrs_list_t *l);
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////////// RFC 5780 ///////////////////////
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typedef int (*get_alt_addr_cb)(ioa_addr *addr, ioa_addr *alt_addr);
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typedef int (*send_message_cb)(ioa_engine_handle e, ioa_network_buffer_handle nbh, ioa_addr *origin, ioa_addr *destination);
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//////////////////////////////////////////
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extern int TURN_MAX_ALLOCATE_TIMEOUT;
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extern int TURN_MAX_ALLOCATE_TIMEOUT_STUN_ONLY;
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typedef u08bits turnserver_id;
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enum _MESSAGE_TO_RELAY_TYPE {
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RMT_UNKNOWN = 0,
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RMT_SOCKET,
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RMT_CB_SOCKET,
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RMT_MOBILE_SOCKET,
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RMT_CANCEL_SESSION
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};
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typedef enum _MESSAGE_TO_RELAY_TYPE MESSAGE_TO_RELAY_TYPE;
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struct socket_message {
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ioa_socket_handle s;
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ioa_net_data nd;
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int can_resume;
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};
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typedef enum {
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DONT_FRAGMENT_UNSUPPORTED=0,
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DONT_FRAGMENT_SUPPORTED,
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DONT_FRAGMENT_SUPPORT_EMULATED
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} dont_fragment_option_t;
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struct _turn_turnserver;
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typedef struct _turn_turnserver turn_turnserver;
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typedef void (*get_username_resume_cb)(int success, int oauth, int max_session_time, hmackey_t hmackey, password_t pwd, turn_turnserver *server, u64bits ctxkey, ioa_net_data *in_buffer, u08bits* realm);
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typedef u08bits *(*get_user_key_cb)(turnserver_id id, turn_credential_type ct, int in_oauth, int *out_oauth, u08bits *uname, u08bits *realm, get_username_resume_cb resume, ioa_net_data *in_buffer, u64bits ctxkey, int *postpone_reply);
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typedef int (*check_new_allocation_quota_cb)(u08bits *username, int oauth, u08bits *realm);
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typedef void (*release_allocation_quota_cb)(u08bits *username, int oauth, u08bits *realm);
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typedef int (*send_socket_to_relay_cb)(turnserver_id id, u64bits cid, stun_tid *tid, ioa_socket_handle s, int message_integrity, MESSAGE_TO_RELAY_TYPE rmt, ioa_net_data *nd, int can_resume);
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typedef int (*send_turn_session_info_cb)(struct turn_session_info *tsi);
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typedef void (*send_https_socket_cb)(ioa_socket_handle s);
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typedef band_limit_t (*allocate_bps_cb)(band_limit_t bps, int positive);
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struct _turn_turnserver {
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turnserver_id id;
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turnsession_id session_id_counter;
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ur_map *sessions_map;
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turn_time_t ctime;
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ioa_engine_handle e;
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int verbose;
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int fingerprint;
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int rfc5780;
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vintp check_origin;
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vintp stale_nonce;
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vintp max_allocate_lifetime;
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vintp stun_only;
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vintp no_stun;
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vintp secure_stun;
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turn_credential_type ct;
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get_alt_addr_cb alt_addr_cb;
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send_message_cb sm_cb;
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dont_fragment_option_t dont_fragment;
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int (*disconnect)(ts_ur_super_session*);
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get_user_key_cb userkeycb;
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check_new_allocation_quota_cb chquotacb;
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release_allocation_quota_cb raqcb;
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int external_ip_set;
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ioa_addr external_ip;
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vintp no_loopback_peers;
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vintp no_multicast_peers;
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send_turn_session_info_cb send_turn_session_info;
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send_https_socket_cb send_https_socket;
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/* RFC 6062 ==>> */
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vintp no_udp_relay;
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vintp no_tcp_relay;
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ur_map *tcp_relay_connections;
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send_socket_to_relay_cb send_socket_to_relay;
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/* <<== RFC 6062 */
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/* Alternate servers ==>> */
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turn_server_addrs_list_t *alternate_servers_list;
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size_t as_counter;
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turn_server_addrs_list_t *tls_alternate_servers_list;
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size_t tls_as_counter;
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turn_server_addrs_list_t *aux_servers_list;
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int self_udp_balance;
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/* White/black listing of address ranges */
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ip_range_list_t* ip_whitelist;
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ip_range_list_t* ip_blacklist;
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/* Mobility */
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vintp mobility;
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ur_map *mobile_connections_map;
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/* Server relay */
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int server_relay;
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/* Bandwidth draft: */
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allocate_bps_cb allocate_bps_func;
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/* oAuth: */
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int oauth;
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const char* oauth_server_name;
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};
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///////////////////////////////////////////
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void init_turn_server(turn_turnserver* server,
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turnserver_id id, int verbose,
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ioa_engine_handle e,
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turn_credential_type ct,
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int stun_port,
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int fingerprint,
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dont_fragment_option_t dont_fragment,
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get_user_key_cb userkeycb,
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check_new_allocation_quota_cb chquotacb,
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release_allocation_quota_cb raqcb,
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ioa_addr *external_addr,
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vintp check_origin,
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vintp no_tcp_relay,
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vintp no_udp_relay,
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vintp stale_nonce,
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vintp max_allocate_lifetime,
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vintp stun_only,
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vintp no_stun,
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turn_server_addrs_list_t *alternate_servers_list,
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turn_server_addrs_list_t *tls_alternate_servers_list,
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turn_server_addrs_list_t *aux_servers_list,
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int self_udp_balance,
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vintp no_multicast_peers,
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vintp no_loopback_peers,
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ip_range_list_t* ip_whitelist,
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ip_range_list_t* ip_blacklist,
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send_socket_to_relay_cb send_socket_to_relay,
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vintp secure_stun,
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vintp mobility,
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int server_relay,
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send_turn_session_info_cb send_turn_session_info,
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send_https_socket_cb send_https_socket,
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allocate_bps_cb allocate_bps_func,
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int oauth,
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const char* oauth_server_name);
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ioa_engine_handle turn_server_get_engine(turn_turnserver *s);
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////////// RFC 5780 ///////////////////////
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void set_rfc5780(turn_turnserver *server, get_alt_addr_cb cb, send_message_cb smcb);
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///////////////////////////////////////////
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int open_client_connection_session(turn_turnserver* server, struct socket_message *sm);
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int shutdown_client_connection(turn_turnserver *server, ts_ur_super_session *ss, int force, const char* reason);
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void set_disconnect_cb(turn_turnserver* server, int (*disconnect)(ts_ur_super_session*));
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int turnserver_accept_tcp_client_data_connection(turn_turnserver *server, tcp_connection_id tcid, stun_tid *tid, ioa_socket_handle s, int message_integrity, ioa_net_data *nd, int can_resume);
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int report_turn_session_info(turn_turnserver *server, ts_ur_super_session *ss, int force_invalid);
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turn_time_t get_turn_server_time(turn_turnserver *server);
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void turn_cancel_session(turn_turnserver *server, turnsession_id sid);
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///////////////////////////////////////////
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#ifdef __cplusplus
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}
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#endif
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#endif //__TURN_SERVER__
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