124 lines
3.1 KiB
C
124 lines
3.1 KiB
C
#ifndef __PJ_STUN_H__
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#define __PJ_STUN_H__
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#include <pj/types.h>
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#include <pj/sock.h>
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PJ_BEGIN_DECL
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#define PJ_STUN_MAX_ATTR 16
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typedef enum pj_stun_msg_type
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{
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PJ_STUN_BINDING_REQUEST = 0x0001,
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PJ_STUN_BINDING_RESPONSE = 0x0101,
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PJ_STUN_BINDING_ERROR_RESPONSE = 0x0111,
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PJ_STUN_SHARED_SECRET_REQUEST = 0x0002,
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PJ_STUN_SHARED_SECRET_RESPONSE = 0x0102,
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PJ_STUN_SHARED_SECRET_ERROR_RESPONSE = 0x0112
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} pj_stun_msg_type;
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typedef enum pj_stun_attr_type
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{
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PJ_STUN_ATTR_MAPPED_ADDR = 1,
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PJ_STUN_ATTR_RESPONSE_ADDR,
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PJ_STUN_ATTR_CHANGE_REQUEST,
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PJ_STUN_ATTR_SOURCE_ADDR,
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PJ_STUN_ATTR_CHANGED_ADDR,
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PJ_STUN_ATTR_USERNAME,
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PJ_STUN_ATTR_PASSWORD,
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PJ_STUN_ATTR_MESSAGE_INTEGRITY,
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PJ_STUN_ATTR_ERROR_CODE,
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PJ_STUN_ATTR_UNKNOWN_ATTRIBUTES,
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PJ_STUN_ATTR_REFLECTED_FORM
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} pj_stun_attr_type;
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typedef struct pj_stun_msg_hdr
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{
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pj_uint16_t type;
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pj_uint16_t length;
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pj_uint32_t tsx[4];
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} pj_stun_msg_hdr;
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typedef struct pj_stun_attr_hdr
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{
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pj_uint16_t type;
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pj_uint16_t length;
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} pj_stun_attr_hdr;
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typedef struct pj_stun_mapped_addr_attr
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{
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pj_stun_attr_hdr hdr;
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pj_uint8_t ignored;
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pj_uint8_t family;
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pj_uint16_t port;
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pj_uint32_t addr;
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} pj_stun_mapped_addr_attr;
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typedef pj_stun_mapped_addr_attr pj_stun_response_addr_attr;
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typedef pj_stun_mapped_addr_attr pj_stun_changed_addr_attr;
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typedef pj_stun_mapped_addr_attr pj_stun_src_addr_attr;
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typedef pj_stun_mapped_addr_attr pj_stun_reflected_form_attr;
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typedef struct pj_stun_change_request_attr
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{
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pj_stun_attr_hdr hdr;
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pj_uint32_t value;
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} pj_stun_change_request_attr;
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typedef struct pj_stun_username_attr
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{
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pj_stun_attr_hdr hdr;
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pj_uint32_t value[1];
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} pj_stun_username_attr;
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typedef pj_stun_username_attr pj_stun_password_attr;
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typedef struct pj_stun_error_code_attr
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{
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pj_stun_attr_hdr hdr;
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pj_uint16_t ignored;
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pj_uint8_t err_class;
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pj_uint8_t number;
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char reason[4];
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} pj_stun_error_code_attr;
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typedef struct pj_stun_msg
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{
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pj_stun_msg_hdr *hdr;
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int attr_count;
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pj_stun_attr_hdr *attr[PJ_STUN_MAX_ATTR];
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} pj_stun_msg;
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/* STUN message API (stun.c). */
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PJ_DECL(pj_status_t) pj_stun_create_bind_req( pj_pool_t *pool,
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void **msg, pj_size_t *len,
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pj_uint32_t id_hi,
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pj_uint32_t id_lo);
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PJ_DECL(pj_status_t) pj_stun_parse_msg( void *buf, pj_size_t len,
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pj_stun_msg *msg);
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PJ_DECL(void*) pj_stun_msg_find_attr( pj_stun_msg *msg, pj_stun_attr_type t);
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/* STUN simple client API (stun_client.c) */
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enum pj_stun_err_code {
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PJ_STUN_ERR_MEMORY = (-2),
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PJ_STUN_ERR_RESOLVE = (-3),
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PJ_STUN_ERR_TRANSPORT = (-4),
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PJ_STUN_ERR_INVALID_MSG = (-5),
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PJ_STUN_ERR_NO_RESPONSE = (-6),
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PJ_STUN_ERR_SYMETRIC = (-7),
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};
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PJ_DECL(pj_status_t) pj_stun_get_mapped_addr( pj_pool_factory *pf,
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int sock_cnt, pj_sock_t sock[],
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const pj_str_t *srv1, int port1,
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const pj_str_t *srv2, int port2,
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pj_sockaddr_in mapped_addr[]);
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PJ_DECL(const char*) pj_stun_get_err_msg(pj_status_t status);
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PJ_END_DECL
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#endif /* __PJ_STUN_H__ */
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