/**
* send a response
*/
int cw_send_response(struct conn *conn, uint8_t * rawmsg, int len)
{
cw_init_response(conn, rawmsg);
if (cw_put_msg(conn, conn->resp_buffer) == -1)
return 0;
conn_send_msg(conn, conn->resp_buffer);
return 1;
}
int cw_send_request(struct conn *conn,int msg_id)
{
time_t timer;
int i;
int rc;
char sock_buf[SOCK_ADDR_BUFSIZE];
cw_init_request(conn, msg_id);
if ( cw_put_msg(conn, conn->req_buffer) == -1 ){
errno=ENOMSG;
return -1;
}
conn_send_msg(conn, conn->req_buffer);
rc=-1;
for (i=0; i<conn->max_retransmit && rc<0; i++){
if ( i>0 ){
cw_log(LOG_WARNING,"Retransmitting request ... %d",i);
}
timer = cw_timer_start(conn->retransmit_interval);
while (!cw_timer_timeout(timer) && rc<0){
rc =cw_read_messages(conn);
if(rc<0){
if (errno!=EAGAIN)
break;
}
}
if (rc<0){
if(errno!=EAGAIN)
break;
}
}
if ( rc <0 && errno != EAGAIN) {
cw_log(LOG_ERR,"Can't read from %s: %s",sock_addr2str(&conn->addr,sock_buf),strerror(errno));
}
if ( rc <0 && errno == EAGAIN) {
errno=ETIMEDOUT;
rc=-1;
}
return rc;
}
static int run_discovery(struct conn *conn)
{
// conn->incomming = mbag_create();
conn->capwap_state = CW_STATE_DISCOVERY;
mbag_set_byte(conn->outgoing, CW_ITEM_DISCOVERY_TYPE,
CW_DISCOVERY_TYPE_UNKNOWN);
cw_init_request(conn, CW_MSG_DISCOVERY_REQUEST);
cw_put_msg(conn, conn->req_buffer);
conn_send_msg(conn, conn->req_buffer);
time_t timer = cw_timer_start(0);
while (!cw_timer_timeout(timer)
&& conn->capwap_state == CW_STATE_DISCOVERY) {
mavl_del_all(conn->incomming);
int rc = cw_read_from(conn);
if (rc<0) {
if (errno==EAGAIN)
continue;
cw_log(LOG_ERROR,"Error reading messages: %s",strerror(errno));
break;
}
}
mbag_t discs;
discs = mbag_get_mavl(conn->remote, CW_ITEM_DISCOVERIES);
if (!discs) {
cw_log(LOG_ERR,"No discovery responses received");
return 0;
}
int i;
cw_aciplist_t list = cw_select_ac(conn, discs);
DEFINE_AVLITER(ii,list);
avliter_foreach(&ii){
cw_acip_t * ip = avliter_get(&ii);
}
mavl_del_all(conn->remote);
mbag_set_mavl(conn->local,CW_ITEM_CAPWAP_CONTROL_IP_ADDRESS_LIST,list);
return 1;
}