diff options
Diffstat (limited to 'pjnath/src/pjstun-srv-test/bind_usage.c')
| -rw-r--r-- | pjnath/src/pjstun-srv-test/bind_usage.c | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/pjnath/src/pjstun-srv-test/bind_usage.c b/pjnath/src/pjstun-srv-test/bind_usage.c new file mode 100644 index 00000000..fc10fb91 --- /dev/null +++ b/pjnath/src/pjstun-srv-test/bind_usage.c @@ -0,0 +1,206 @@ +/* $Id$ */ +/* + * Copyright (C) 2003-2005 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 + */ +#include "server.h" + +#define THIS_FILE "bind_usage.c" + +static void usage_on_rx_data(pj_stun_usage *usage, + void *pkt, + pj_size_t pkt_size, + const pj_sockaddr_t *src_addr, + unsigned src_addr_len); +static void usage_on_destroy(pj_stun_usage *usage); +static pj_status_t sess_on_send_msg(pj_stun_session *sess, + const void *pkt, + pj_size_t pkt_size, + const pj_sockaddr_t *dst_addr, + unsigned addr_len); +static pj_status_t sess_on_rx_request(pj_stun_session *sess, + const pj_uint8_t *pkt, + unsigned pkt_len, + const pj_stun_msg *msg, + const pj_sockaddr_t *src_addr, + unsigned src_addr_len); + +struct bind_usage +{ + pj_pool_t *pool; + pj_stun_usage *usage; + pj_stun_session *session; +}; + + +PJ_DEF(pj_status_t) pj_stun_bind_usage_create(pj_stun_server *srv, + const pj_str_t *ip_addr, + unsigned port, + pj_stun_usage **p_bu) +{ + pj_pool_t *pool; + struct bind_usage *bu; + pj_stun_server_info *si; + pj_stun_usage_cb usage_cb; + pj_stun_session_cb sess_cb; + pj_sockaddr_in local_addr; + pj_status_t status; + + si = pj_stun_server_get_info(srv); + + pool = pj_pool_create(si->pf, "bind%p", 128, 128, NULL); + bu = PJ_POOL_ZALLOC_T(pool, struct bind_usage); + bu->pool = pool; + + status = pj_sockaddr_in_init(&local_addr, ip_addr, (pj_uint16_t)port); + if (status != PJ_SUCCESS) + return status; + + pj_bzero(&usage_cb, sizeof(usage_cb)); + usage_cb.on_rx_data = &usage_on_rx_data; + usage_cb.on_destroy = &usage_on_destroy; + + status = pj_stun_usage_create(srv, "bind%p", &usage_cb, + PJ_AF_INET, PJ_SOCK_DGRAM, 0, + &local_addr, sizeof(local_addr), + &bu->usage); + if (status != PJ_SUCCESS) { + pj_pool_release(pool); + return status; + } + + pj_bzero(&sess_cb, sizeof(sess_cb)); + sess_cb.on_send_msg = &sess_on_send_msg; + sess_cb.on_rx_request = &sess_on_rx_request; + status = pj_stun_session_create(si->endpt, "bind%p", &sess_cb, PJ_FALSE, + &bu->session); + if (status != PJ_SUCCESS) { + pj_stun_usage_destroy(bu->usage); + return status; + } + + pj_stun_usage_set_user_data(bu->usage, bu); + pj_stun_session_set_user_data(bu->session, bu); + + if (p_bu) + *p_bu = bu->usage; + + return PJ_SUCCESS; +} + + +static void usage_on_rx_data(pj_stun_usage *usage, + void *pkt, + pj_size_t pkt_size, + const pj_sockaddr_t *src_addr, + unsigned src_addr_len) +{ + struct bind_usage *bu; + pj_stun_session *session; + pj_status_t status; + + bu = (struct bind_usage*) pj_stun_usage_get_user_data(usage); + session = bu->session; + + /* Handle packet to session */ + status = pj_stun_session_on_rx_pkt(session, (pj_uint8_t*)pkt, pkt_size, + PJ_STUN_IS_DATAGRAM | PJ_STUN_CHECK_PACKET, + NULL, src_addr, src_addr_len); + if (status != PJ_SUCCESS) { + pj_stun_perror(THIS_FILE, "Error handling incoming packet", status); + return; + } +} + + +static pj_status_t sess_on_send_msg(pj_stun_session *sess, + const void *pkt, + pj_size_t pkt_size, + const pj_sockaddr_t *dst_addr, + unsigned addr_len) +{ + struct bind_usage *bu; + pj_stun_usage *usage; + + bu = (struct bind_usage*) pj_stun_session_get_user_data(sess); + usage = bu->usage; + + return pj_stun_usage_sendto(usage, pkt, pkt_size, 0, + dst_addr, addr_len); +} + + +static pj_status_t sess_on_rx_request(pj_stun_session *sess, + const pj_uint8_t *pkt, + unsigned pkt_len, + const pj_stun_msg *msg, + const pj_sockaddr_t *src_addr, + unsigned src_addr_len) +{ + pj_stun_tx_data *tdata; + pj_status_t status; + + PJ_UNUSED_ARG(pkt); + PJ_UNUSED_ARG(pkt_len); + + /* Create response */ + status = pj_stun_session_create_response(sess, msg, 0, NULL, &tdata); + if (status != PJ_SUCCESS) + return status; + + /* Create MAPPED-ADDRESS attribute */ + status = pj_stun_msg_add_sockaddr_attr(tdata->pool, tdata->msg, + PJ_STUN_ATTR_MAPPED_ADDR, + PJ_FALSE, + src_addr, src_addr_len); + if (status != PJ_SUCCESS) { + pj_stun_perror(THIS_FILE, "Error creating response", status); + pj_stun_msg_destroy_tdata(sess, tdata); + return status; + } + + /* On the presence of magic, create XOR-MAPPED-ADDRESS attribute */ + if (msg->hdr.magic == PJ_STUN_MAGIC) { + status = + pj_stun_msg_add_sockaddr_attr(tdata->pool, tdata->msg, + PJ_STUN_ATTR_XOR_MAPPED_ADDR, + PJ_TRUE, + src_addr, src_addr_len); + if (status != PJ_SUCCESS) { + pj_stun_perror(THIS_FILE, "Error creating response", status); + pj_stun_msg_destroy_tdata(sess, tdata); + return status; + } + } + + /* Send */ + status = pj_stun_session_send_msg(sess, PJ_TRUE, + src_addr, src_addr_len, tdata); + return status; + +} + +static void usage_on_destroy(pj_stun_usage *usage) +{ + struct bind_usage *bu; + + bu = (struct bind_usage*) pj_stun_usage_get_user_data(usage); + if (bu==NULL) + return; + + pj_stun_session_destroy(bu->session); + pj_pool_release(bu->pool); +} |