static void tls_channel_close(belle_sip_tls_channel_t *obj){
belle_sip_socket_t sock = belle_sip_source_get_socket((belle_sip_source_t*)obj);
if (sock!=-1 && belle_sip_channel_get_state((belle_sip_channel_t*)obj)!=BELLE_SIP_CHANNEL_ERROR)
ssl_close_notify(&obj->sslctx);
stream_channel_close((belle_sip_stream_channel_t*)obj);
ssl_session_reset(&obj->sslctx);
obj->socket_connected=0;
}
static int tls_channel_connect(belle_sip_channel_t *obj, const struct addrinfo *ai){
int err= stream_channel_connect((belle_sip_stream_channel_t*)obj,ai);
if (err==0){
belle_sip_socket_t sock=belle_sip_source_get_socket((belle_sip_source_t*)obj);
belle_sip_channel_set_socket(obj,sock,(belle_sip_source_func_t)tls_process_data);
return 0;
}
return -1;
}
static int udp_channel_send(belle_sip_channel_t *obj, const void *buf, size_t buflen){
belle_sip_udp_channel_t *chan=(belle_sip_udp_channel_t *)obj;
int err;
belle_sip_socket_t sock=belle_sip_source_get_socket((belle_sip_source_t*)chan);
err=sendto(sock,buf,buflen,0,obj->current_peer->ai_addr,obj->current_peer->ai_addrlen);
if (err==-1){
belle_sip_error("channel [%p]: could not send UDP packet because [%s]",obj,belle_sip_get_socket_error_string());
return -errno;
}
return err;
}
static void tls_channel_uninit(belle_sip_tls_channel_t *obj){
belle_sip_socket_t sock = belle_sip_source_get_socket((belle_sip_source_t*)obj);
if (sock!=(belle_sip_socket_t)-1)
tls_channel_close(obj);
ssl_free(&obj->sslctx);
#if POLARSSL_VERSION_NUMBER < 0x01030000
x509_free(&obj->root_ca);
#else
x509_crt_free(&obj->root_ca);
#endif
if (obj->cur_debug_msg)
belle_sip_free(obj->cur_debug_msg);
belle_sip_object_unref(obj->verify_ctx);
}
static int udp_channel_recv(belle_sip_channel_t *obj, void *buf, size_t buflen){
belle_sip_udp_channel_t *chan=(belle_sip_udp_channel_t *)obj;
int err;
struct sockaddr_storage addr;
socklen_t addrlen=sizeof(addr);
belle_sip_socket_t sock=belle_sip_source_get_socket((belle_sip_source_t*)chan);
err=recvfrom(sock,buf,buflen,0,(struct sockaddr*)&addr,&addrlen);
if (err==-1 && get_socket_error()!=BELLESIP_EWOULDBLOCK){
belle_sip_error("Could not receive UDP packet: %s",belle_sip_get_socket_error_string());
return -errno;
}
return err;
}
