actube/src/cw/cw_in_check_join_req.c

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#include "capwap.h"
#include "intavltree.h"
#include "dbg.h"
#include "log.h"
#include "capwap_items.h"
#include "format.h"
#include "connlist.h"
int cw_in_check_join_req(struct conn *conn, struct cw_action_in *a, uint8_t * data,
int len,struct sockaddr *from)
{
cw_action_in_t * mlist[60];
/* Check for mandatory elements */
int n = cw_check_missing_mand(mlist,conn,a);
if (n) {
if ( conn->strict_capwap ){
cw_dbg_missing_mand(DBG_MSG_ERR,conn,mlist,n,a);
conn->capwap_state=CW_STATE_JOIN;
return CW_RESULT_MISSING_MAND_ELEM;
}
cw_dbg_missing_mand(DBG_RFC,conn,mlist,n,a);
}
connlist_lock(conn->connlist);
struct conn *cc = connlist_get_by_session_id(conn->connlist,conn);
if (!cc){
connlist_add_by_session_id(conn->connlist,conn);
}
connlist_unlock(conn->connlist);
if (cc){
cw_dbg(DBG_ELEM_ERR,"Session already in use %s",format_bin2hex(conn->session_id,16));
conn->capwap_state=CW_STATE_JOIN;
return CW_RESULT_JOIN_FAILURE_SESSION_ALREADY_IN_USE;
}
/* set result code to ok and change to configure state */
mbag_set_dword(conn->outgoing,CW_ITEM_RESULT_CODE,0);
conn->capwap_state = CW_STATE_CONFIGURE;
return 0;
}