#include "cw/capwap.h"
#include "cw/mod.h"
#include "cw/log.h"
#include "cw/dbg.h"

#include "cw/action.h"

#include "mod_cisco.h"
#include "../modload.h"


static struct cw_actiondef actions;



extern int cisco_register_actions_ac(struct cw_actiondef *def);

static int register_actions(struct cw_actiondef *actions)
{
	struct mod_ac *cmod = modload_ac("capwap");
	if (!cmod) {
		cw_log(LOG_ERR,
		       "Can't initzialize mod_cisco, failed to load base mod mod_capwap");
		return 1;
	}
	cmod->register_actions(actions);
	int rc = cisco_register_actions_ac(actions);
	cw_dbg(DBG_INFO, "Initialized mod cisco with %d actions", rc);
	return 0;


}



static int init()
{
	cw_dbg(DBG_INFO, "Initialiazing mod_cisco ...");
//	struct mod_ac *cmod = modload_ac("capwap");
	return 1;
}


static int detect(struct conn *conn, const uint8_t * rawmsg, int rawlen, int elems_len,
		  struct sockaddr *from, int mode)
{
	if (mode != MOD_DETECT_CAPWAP)
		return 0;


	int offset = cw_get_hdr_msg_offset(rawmsg);
	const uint8_t *msg_ptr = rawmsg + offset;

	const uint8_t *elems_ptr = cw_get_msg_elems_ptr(msg_ptr);
	const uint8_t *elem;


	/* To detect a Cisco AP we look for any vendor 
	 * specific payload Cisco identifier */
	cw_foreach_elem(elem, elems_ptr, elems_len) {
		int id = cw_get_elem_id(elem);
		if (id == CW_ELEM_VENDOR_SPECIFIC_PAYLOAD) {
			uint32_t vendor_id = cw_get_dword(cw_get_elem_data(elem));
			if (vendor_id == CW_VENDOR_ID_CISCO) {
				conn->actions = &actions;
				cw_dbg(DBG_MOD,"CISCO detected: yes");
				return 1;

			}

		}

	}

	cw_dbg(DBG_MOD,"CISCO detected: no");
	return 0;
}

static struct mod_ac capwap_ac = {
	.name = "cisco",
	.init = init,
	.detect = detect,
	.register_actions = register_actions
};

struct mod_ac *mod_cisco_ac()
{
	return &capwap_ac;
};