Esempi in C++ (Cpp) per _ng_l2cap_con_rsp

Esempio n. 1

int
ng_l2cap_l2ca_con_rsp_req(ng_l2cap_p l2cap, struct ng_mesg *msg)
{
	ng_l2cap_l2ca_con_rsp_ip	*ip = NULL;
	ng_l2cap_con_p			 con = NULL;
	ng_l2cap_chan_p			 ch = NULL;
	ng_l2cap_cmd_p			 cmd = NULL;
	u_int16_t			 dcid;
	int				 error = 0;

	/* Check message */
	if (msg->header.arglen != sizeof(*ip)) {
		NG_L2CAP_ALERT(
"%s: %s - invalid L2CA_ConnectRsp request message size, size=%d\n",
			__func__, NG_NODE_NAME(l2cap->node),
			msg->header.arglen);
		error = EMSGSIZE;
		goto out;
	}

	ip = (ng_l2cap_l2ca_con_rsp_ip *)(msg->data);

	/* Check if we have this channel */
	ch = ng_l2cap_chan_by_scid(l2cap, ip->lcid);
	if (ch == NULL) {
		NG_L2CAP_ALERT(
"%s: %s - unexpected L2CA_ConnectRsp request message. " \
"Channel does not exist, lcid=%d\n",
			__func__, NG_NODE_NAME(l2cap->node), ip->lcid);
		error = ENOENT;
		goto out;
	}

	/* Check channel state */
	if (ch->state != NG_L2CAP_W4_L2CA_CON_RSP) {
		NG_L2CAP_ERR(
"%s: %s - unexpected L2CA_ConnectRsp request message. " \
"Invalid channel state, state=%d, lcid=%d\n",
			__func__, NG_NODE_NAME(l2cap->node), ch->state,
			ip->lcid);
		error = EINVAL;
		goto out;
	}

	dcid = ch->dcid;
	con = ch->con;

	/*
	 * Now we are pretty much sure it is our response. So create and send 
	 * L2CAP_ConnectRsp message to our peer.
	 */

	if (ch->ident != ip->ident)
		NG_L2CAP_WARN(
"%s: %s - channel ident and response ident do not match, scid=%d, ident=%d. " \
"Will use response ident=%d\n",
			__func__, NG_NODE_NAME(l2cap->node), ch->scid, 
			ch->ident, ip->ident);

	/* Check result */
	switch (ip->result) {
	case NG_L2CAP_SUCCESS:
		ch->state = NG_L2CAP_CONFIG;
		ch->cfg_state = 0;
		break;

	case NG_L2CAP_PENDING:
		break;

	default:
		ng_l2cap_free_chan(ch);
		ch = NULL;
		break;
	}

	/* Create L2CAP command */
	cmd = ng_l2cap_new_cmd(con, ch, ip->ident, NG_L2CAP_CON_RSP,
			msg->header.token);
	if (cmd == NULL) {
		if (ch != NULL)
			ng_l2cap_free_chan(ch);

		error = ENOMEM;
		goto out;
	}

	_ng_l2cap_con_rsp(cmd->aux, cmd->ident, ip->lcid, dcid, 
		ip->result, ip->status);
	if (cmd->aux == NULL) {
		if (ch != NULL)
			ng_l2cap_free_chan(ch);

		ng_l2cap_free_cmd(cmd);
		error = ENOBUFS;
		goto out;
	} 

	/* Link command to the queue */
	ng_l2cap_link_cmd(con, cmd);
	ng_l2cap_lp_deliver(con);
out:
	return (error);
} /* ng_l2cap_l2ca_con_rsp_req */

Esempio n. 2

File: ng_l2cap_ulpi.c Progetto: hmatyschok/MeshBSD

int
ng_l2cap_l2ca_con_req(ng_l2cap_p l2cap, struct ng_mesg *msg)
{
	ng_l2cap_l2ca_con_ip	*ip = NULL;
	ng_l2cap_con_p		 con = NULL;
	ng_l2cap_chan_p		 ch = NULL;
	ng_l2cap_cmd_p		 cmd = NULL;
	int			 error = 0;

	/* Check message */
	if (msg->header.arglen != sizeof(*ip)) {
		NG_L2CAP_ALERT(
"%s: %s - invalid L2CA_Connect request message size, size=%d\n",
			__func__, NG_NODE_NAME(l2cap->node),
			msg->header.arglen);
		error = EMSGSIZE;
		goto out;
	}

	ip = (ng_l2cap_l2ca_con_ip *)(msg->data);

	/* Check if we have connection to the remote unit */
	con = ng_l2cap_con_by_addr(l2cap, &ip->bdaddr, ip->linktype);
	if (con == NULL) {
		/* Submit LP_ConnectReq to the lower layer */
		error = ng_l2cap_lp_con_req(l2cap, &ip->bdaddr,ip->linktype);
		if (error != 0) {
			NG_L2CAP_ERR(
"%s: %s - unable to send LP_ConnectReq message, error=%d\n",
				__func__, NG_NODE_NAME(l2cap->node), error);
			goto out;
		}

		/* This should not fail */
		con = ng_l2cap_con_by_addr(l2cap, &ip->bdaddr, ip->linktype);
		KASSERT((con != NULL),
("%s: %s - could not find connection!\n", __func__, NG_NODE_NAME(l2cap->node)));
	}

	/*
	 * Create new empty channel descriptor. In case of any failure do 
	 * not touch connection descriptor.
	 */

	ch = ng_l2cap_new_chan(l2cap, con, ip->psm, ip->idtype);
	if (ch == NULL) {
		error = ENOMEM;
		goto out;
	}

	/* Now create L2CAP_ConnectReq command */
	cmd = ng_l2cap_new_cmd(ch->con, ch, ng_l2cap_get_ident(con),
			NG_L2CAP_CON_REQ, msg->header.token);
	if (cmd == NULL) {
		ng_l2cap_free_chan(ch);
		error = ENOMEM;
		goto out;
	}

	if (cmd->ident == NG_L2CAP_NULL_IDENT) {
		ng_l2cap_free_cmd(cmd);
		ng_l2cap_free_chan(ch);
		error = EIO;
		goto out;
	}

	/* Create L2CAP command packet */
	if(ip->idtype == NG_L2CAP_L2CA_IDTYPE_ATT){
		_ng_l2cap_con_rsp(cmd->aux, cmd->ident, NG_L2CAP_ATT_CID,
				  NG_L2CAP_ATT_CID, 0, 0);
		cmd->aux->m_flags |= M_PROTO2;
	}else if(ip->idtype == NG_L2CAP_L2CA_IDTYPE_SMP){
		_ng_l2cap_con_rsp(cmd->aux, cmd->ident, NG_L2CAP_SMP_CID,
				  NG_L2CAP_SMP_CID, 0, 0);
		cmd->aux->m_flags |= M_PROTO2;
	}else{
		_ng_l2cap_con_req(cmd->aux, cmd->ident, ch->psm, ch->scid);
	}
	if (cmd->aux == NULL) {
		ng_l2cap_free_cmd(cmd);
		ng_l2cap_free_chan(ch);
		error = ENOBUFS;
		goto out;
	}

	ch->state = NG_L2CAP_W4_L2CAP_CON_RSP;

	/* Link command to the queue */
	ng_l2cap_link_cmd(ch->con, cmd);
	ng_l2cap_lp_deliver(ch->con);
out:
	return (error);
} /* ng_l2cap_l2ca_con_req */