C++ (Cpp) ng_l2cap_new_con Examples

Example #1

File: ng_l2cap_llpi.c Project: MarginC/kame

int
ng_l2cap_lp_con_req(ng_l2cap_p l2cap, bdaddr_p bdaddr)
{
	struct ng_mesg		*msg = NULL;
	ng_hci_lp_con_req_ep	*ep = NULL;
	ng_l2cap_con_p		 con = NULL;
	int			 error = 0;

	/* Verify that we DO NOT have connection to the remote unit */
	con = ng_l2cap_con_by_addr(l2cap, bdaddr);
	if (con != NULL) {
		NG_L2CAP_ALERT(
"%s: %s - unexpected LP_ConnectReq event. " \
"Connection already exists, state=%d, con_handle=%d\n",
			__func__, NG_NODE_NAME(l2cap->node), con->state, 
			con->con_handle);

		return (EEXIST);
	}

	/* Check if lower layer protocol is still connected */
	if (l2cap->hci == NULL || NG_HOOK_NOT_VALID(l2cap->hci)) {
		NG_L2CAP_ERR(
"%s: %s - hook \"%s\" is not connected or valid\n",
			__func__, NG_NODE_NAME(l2cap->node), NG_L2CAP_HOOK_HCI);

		return (ENOTCONN);
	}

	/* Create and intialize new connection descriptor */
	con = ng_l2cap_new_con(l2cap, bdaddr);
	if (con == NULL)
		return (ENOMEM);

	/* Create and send LP_ConnectReq event */
	NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_LP_CON_REQ,
		sizeof(*ep), M_NOWAIT);
	if (msg == NULL) {
		ng_l2cap_free_con(con);

		return (ENOMEM);
	}

	ep = (ng_hci_lp_con_req_ep *) (msg->data);
	bcopy(bdaddr, &ep->bdaddr, sizeof(ep->bdaddr));
	ep->link_type = NG_HCI_LINK_ACL;

	con->state = NG_L2CAP_W4_LP_CON_CFM;
	ng_l2cap_lp_timeout(con);

	NG_SEND_MSG_HOOK(error, l2cap->node, msg, l2cap->hci, NULL);
	if (error != 0)
		ng_l2cap_free_con(con); /* will remove timeout */
	
	return (error);
} /* ng_l2cap_lp_con_req */

Example #2

File: ng_l2cap_llpi.c Project: AhmadTux/freebsd

int
ng_l2cap_lp_con_ind(ng_l2cap_p l2cap, struct ng_mesg *msg)
{
	ng_hci_lp_con_ind_ep	*ep = NULL;
	ng_hci_lp_con_rsp_ep	*rp = NULL;
	struct ng_mesg		*rsp = NULL;
	ng_l2cap_con_p		 con = NULL;
	int			 error = 0;

	/* Check message */
	if (msg->header.arglen != sizeof(*ep)) {
		NG_L2CAP_ALERT(
"%s: %s - invalid LP_ConnectInd message size\n",
			__func__, NG_NODE_NAME(l2cap->node));

		return (EMSGSIZE);
	}

 	ep = (ng_hci_lp_con_ind_ep *) (msg->data);

	/* Make sure we have only one connection to the remote unit */
	con = ng_l2cap_con_by_addr(l2cap, &ep->bdaddr);
	if (con != NULL) {
		NG_L2CAP_ALERT(
"%s: %s - unexpected LP_ConnectInd event. " \
"Connection already exists, state=%d, con_handle=%d\n",
			__func__, NG_NODE_NAME(l2cap->node), con->state, 
			con->con_handle);

		return (EEXIST);
	}

	/* Check if lower layer protocol is still connected */
	if (l2cap->hci == NULL || NG_HOOK_NOT_VALID(l2cap->hci)) {
		NG_L2CAP_ERR(
"%s: %s - hook \"%s\" is not connected or valid",
			__func__, NG_NODE_NAME(l2cap->node), NG_L2CAP_HOOK_HCI);

		return (ENOTCONN);
	}

	/* Create and intialize new connection descriptor */
	con = ng_l2cap_new_con(l2cap, &ep->bdaddr);
	if (con == NULL)
		return (ENOMEM);

	/* Create and send LP_ConnectRsp event */
	NG_MKMESSAGE(rsp, NGM_HCI_COOKIE, NGM_HCI_LP_CON_RSP,
		sizeof(*rp), M_NOWAIT);
	if (rsp == NULL) {
		ng_l2cap_free_con(con);

		return (ENOMEM);
	}

	rp = (ng_hci_lp_con_rsp_ep *)(rsp->data);
	rp->status = 0x00; /* accept connection */
	rp->link_type = NG_HCI_LINK_ACL;
	bcopy(&ep->bdaddr, &rp->bdaddr, sizeof(rp->bdaddr));

	con->state = NG_L2CAP_W4_LP_CON_CFM;
	ng_l2cap_lp_timeout(con);

	NG_SEND_MSG_HOOK(error, l2cap->node, rsp, l2cap->hci, 0);
	if (error != 0) {
		if (ng_l2cap_lp_untimeout(con) == 0)
			ng_l2cap_free_con(con);

		/*
		 * Do not free connection if ng_l2cap_lp_untimeout() failed
		 * let timeout handler deal with it. Always return error to
		 * the caller.
		 */
	}

	return (error);
} /* ng_l2cap_lp_con_ind */