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HOME SIP/media Features High Performance SIP Small Footprint SIP Symbian Port FAQ Documentation Licensing Download Development (Trac) Projects using pjsip Mailing List Open Source Links About: PJLIB, PJLIB-UTIL, PJSIP, and PJMEDIA are created by: Benny Prijono <bennylppjsip.org>   Home --> Documentations --> PJNATH Reference ice_session.h Go to the documentation of this file. /* $Id: ice_session.h 2031 2008-06-19 13:54:21Z bennylp $ */ /* * Copyright (C) 2003-2007 Benny Prijono <benny@prijono.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __PJNATH_ICE_SESSION_H__ #define __PJNATH_ICE_SESSION_H__ #include <pjnath/types.h> #include <pjnath/stun_session.h> #include <pjnath/errno.h> #include <pj/sock.h> #include <pj/timer.h> PJ_BEGIN_DECL typedef struct pj_ice_sess_checklist pj_ice_sess_checklist; typedef enum pj_ice_cand_type { PJ_ICE_CAND_TYPE_HOST, PJ_ICE_CAND_TYPE_SRFLX, PJ_ICE_CAND_TYPE_PRFLX, PJ_ICE_CAND_TYPE_RELAYED } pj_ice_cand_type; typedef struct pj_ice_sess pj_ice_sess; typedef struct pj_ice_sess_check pj_ice_sess_check; typedef struct pj_ice_sess_comp { pj_ice_sess_check *valid_check; pj_stun_session *stun_sess; } pj_ice_sess_comp; typedef struct pj_ice_msg_data { unsigned transport_id; pj_bool_t has_req_data; union data { struct request_data { pj_ice_sess *ice; pj_ice_sess_checklist *clist; unsigned ckid; } req; } data; } pj_ice_msg_data; typedef struct pj_ice_sess_cand { pj_ice_cand_type type; pj_status_t status; pj_uint8_t comp_id; pj_uint8_t transport_id; pj_uint16_t local_pref; pj_str_t foundation; pj_uint32_t prio; pj_sockaddr addr; pj_sockaddr base_addr; pj_sockaddr rel_addr; } pj_ice_sess_cand; typedef enum pj_ice_sess_check_state { PJ_ICE_SESS_CHECK_STATE_FROZEN, PJ_ICE_SESS_CHECK_STATE_WAITING, PJ_ICE_SESS_CHECK_STATE_IN_PROGRESS, PJ_ICE_SESS_CHECK_STATE_SUCCEEDED, PJ_ICE_SESS_CHECK_STATE_FAILED } pj_ice_sess_check_state; struct pj_ice_sess_check { pj_ice_sess_cand *lcand; pj_ice_sess_cand *rcand; pj_timestamp prio; pj_ice_sess_check_state state; pj_stun_tx_data *tdata; pj_bool_t nominated; pj_status_t err_code; }; typedef enum pj_ice_sess_checklist_state { PJ_ICE_SESS_CHECKLIST_ST_IDLE, PJ_ICE_SESS_CHECKLIST_ST_RUNNING, PJ_ICE_SESS_CHECKLIST_ST_COMPLETED } pj_ice_sess_checklist_state; struct pj_ice_sess_checklist { pj_ice_sess_checklist_state state; unsigned count; pj_ice_sess_check checks[PJ_ICE_MAX_CHECKS]; pj_timer_entry timer; }; typedef struct pj_ice_sess_cb { void (*on_ice_complete)(pj_ice_sess *ice, pj_status_t status); pj_status_t (*on_tx_pkt)(pj_ice_sess *ice, unsigned comp_id, unsigned transport_id, const void *pkt, pj_size_t size, const pj_sockaddr_t *dst_addr, unsigned dst_addr_len); void (*on_rx_data)(pj_ice_sess *ice, unsigned comp_id, unsigned transport_id, void *pkt, pj_size_t size, const pj_sockaddr_t *src_addr, unsigned src_addr_len); } pj_ice_sess_cb; typedef enum pj_ice_sess_role { PJ_ICE_SESS_ROLE_UNKNOWN, PJ_ICE_SESS_ROLE_CONTROLLED, PJ_ICE_SESS_ROLE_CONTROLLING } pj_ice_sess_role; typedef struct pj_ice_rx_check { PJ_DECL_LIST_MEMBER(struct pj_ice_rx_check); unsigned comp_id; unsigned transport_id; pj_sockaddr src_addr; unsigned src_addr_len; pj_bool_t use_candidate; pj_uint32_t priority; pj_stun_uint64_attr *role_attr; } pj_ice_rx_check; struct pj_ice_sess { char obj_name[PJ_MAX_OBJ_NAME]; pj_pool_t *pool; void *user_data; pj_mutex_t *mutex; pj_ice_sess_role role; pj_timestamp tie_breaker; pj_uint8_t *prefs; pj_bool_t is_complete; pj_status_t ice_status; pj_timer_entry completion_timer; pj_ice_sess_cb cb; pj_stun_config stun_cfg; /* STUN credentials */ pj_str_t tx_ufrag; pj_str_t tx_uname; pj_str_t tx_pass; pj_str_t rx_ufrag; pj_str_t rx_uname; pj_str_t rx_pass; /* Components */ unsigned comp_cnt; pj_ice_sess_comp comp[PJ_ICE_MAX_COMP]; /* Local candidates */ unsigned lcand_cnt; pj_ice_sess_cand lcand[PJ_ICE_MAX_CAND]; /* Remote candidates */ unsigned rcand_cnt; pj_ice_sess_cand rcand[PJ_ICE_MAX_CAND]; /* Array of transport datas */ pj_ice_msg_data tp_data[4]; /* List of eearly checks */ pj_ice_rx_check early_check; /* Checklist */ pj_ice_sess_checklist clist; /* Valid list */ pj_ice_sess_checklist valid_list; /* Temporary buffer for misc stuffs to avoid using stack too much */ union { char txt[128]; char errmsg[PJ_ERR_MSG_SIZE]; } tmp; }; PJ_DECL(const char*) pj_ice_get_cand_type_name(pj_ice_cand_type type); PJ_DECL(const char*) pj_ice_sess_role_name(pj_ice_sess_role role); PJ_DECL(void) pj_ice_calc_foundation(pj_pool_t *pool, pj_str_t *foundation, pj_ice_cand_type type, const pj_sockaddr *base_addr); PJ_DECL(pj_status_t) pj_ice_sess_create(pj_stun_config *stun_cfg, const char *name, pj_ice_sess_role role, unsigned comp_cnt, const pj_ice_sess_cb *cb, const pj_str_t *local_ufrag, const pj_str_t *local_passwd, pj_ice_sess **p_ice); PJ_DECL(pj_status_t) pj_ice_sess_destroy(pj_ice_sess *ice); PJ_DECL(pj_status_t) pj_ice_sess_change_role(pj_ice_sess *ice, pj_ice_sess_role new_role); PJ_DECL(pj_status_t) pj_ice_sess_set_prefs(pj_ice_sess *ice, const pj_uint8_t prefs[4]); PJ_DECL(pj_status_t) pj_ice_sess_add_cand(pj_ice_sess *ice, unsigned comp_id, unsigned transport_id, pj_ice_cand_type type, pj_uint16_t local_pref, const pj_str_t *foundation, const pj_sockaddr_t *addr, const pj_sockaddr_t *base_addr, const pj_sockaddr_t *rel_addr, int addr_len, unsigned *p_cand_id); PJ_DECL(pj_status_t) pj_ice_sess_find_default_cand(pj_ice_sess *ice, unsigned comp_id, int *p_cand_id); PJ_DECL(pj_status_t) pj_ice_sess_create_check_list(pj_ice_sess *ice, const pj_str_t *rem_ufrag, const pj_str_t *rem_passwd, unsigned rem_cand_cnt, const pj_ice_sess_cand rem_cand[]); PJ_DECL(pj_status_t) pj_ice_sess_start_check(pj_ice_sess *ice); PJ_DECL(pj_status_t) pj_ice_sess_send_data(pj_ice_sess *ice, unsigned comp_id, const void *data, pj_size_t data_len); PJ_DECL(pj_status_t) pj_ice_sess_on_rx_pkt(pj_ice_sess *ice, unsigned comp_id, unsigned transport_id, void *pkt, pj_size_t pkt_size, const pj_sockaddr_t *src_addr, int src_addr_len); PJ_END_DECL #endif /* __PJNATH_ICE_SESSION_H__ */   PJNATH - Open Source NAT traversal helper library supporting STUN, TURN, and ICE (C)2001-2008 Benny Prijono