/* * llc_s_ac.c - actions performed during sap state transition. * * Description : * Functions in this module are implementation of sap component actions. * Details of actions can be found in IEEE-802.2 standard document. * All functions have one sap and one event as input argument. All of * them return 0 On success and 1 otherwise. * * Copyright (c) 1997 by Procom Technology, Inc. * 2001-2003 by Arnaldo Carvalho de Melo <[email protected]> * * This program can be redistributed or modified under the terms of the * GNU General Public License as published by the Free Software Foundation. * This program is distributed without any warranty or implied warranty * of merchantability or fitness for a particular purpose. * * See the GNU General Public License for more details. */ #include <linux/netdevice.h> #include <net/llc.h> #include <net/llc_pdu.h> #include <net/llc_s_ac.h> #include <net/llc_s_ev.h> #include <net/llc_sap.h> /** * llc_sap_action_unitdata_ind - forward UI PDU to network layer * @sap: SAP * @skb: the event to forward * * Received a UI PDU from MAC layer; forward to network layer as a * UNITDATA INDICATION; verify our event is the kind we expect */ int llc_sap_action_unitdata_ind(struct llc_sap *sap, struct sk_buff *skb) { … } /** * llc_sap_action_send_ui - sends UI PDU resp to UNITDATA REQ to MAC layer * @sap: SAP * @skb: the event to send * * Sends a UI PDU to the MAC layer in response to a UNITDATA REQUEST * primitive from the network layer. Verifies event is a primitive type of * event. Verify the primitive is a UNITDATA REQUEST. */ int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb) { … } /** * llc_sap_action_send_xid_c - send XID PDU as response to XID REQ * @sap: SAP * @skb: the event to send * * Send a XID command PDU to MAC layer in response to a XID REQUEST * primitive from the network layer. Verify event is a primitive type * event. Verify the primitive is a XID REQUEST. */ int llc_sap_action_send_xid_c(struct llc_sap *sap, struct sk_buff *skb) { … } /** * llc_sap_action_send_xid_r - send XID PDU resp to MAC for received XID * @sap: SAP * @skb: the event to send * * Send XID response PDU to MAC in response to an earlier received XID * command PDU. Verify event is a PDU type event */ int llc_sap_action_send_xid_r(struct llc_sap *sap, struct sk_buff *skb) { … } /** * llc_sap_action_send_test_c - send TEST PDU to MAC in resp to TEST REQ * @sap: SAP * @skb: the event to send * * Send a TEST command PDU to the MAC layer in response to a TEST REQUEST * primitive from the network layer. Verify event is a primitive type * event; verify the primitive is a TEST REQUEST. */ int llc_sap_action_send_test_c(struct llc_sap *sap, struct sk_buff *skb) { … } int llc_sap_action_send_test_r(struct llc_sap *sap, struct sk_buff *skb) { … } /** * llc_sap_action_report_status - report data link status to layer mgmt * @sap: SAP * @skb: the event to send * * Report data link status to layer management. Verify our event is the * kind we expect. */ int llc_sap_action_report_status(struct llc_sap *sap, struct sk_buff *skb) { … } /** * llc_sap_action_xid_ind - send XID PDU resp to net layer via XID IND * @sap: SAP * @skb: the event to send * * Send a XID response PDU to the network layer via a XID INDICATION * primitive. */ int llc_sap_action_xid_ind(struct llc_sap *sap, struct sk_buff *skb) { … } /** * llc_sap_action_test_ind - send TEST PDU to net layer via TEST IND * @sap: SAP * @skb: the event to send * * Send a TEST response PDU to the network layer via a TEST INDICATION * primitive. Verify our event is a PDU type event. */ int llc_sap_action_test_ind(struct llc_sap *sap, struct sk_buff *skb) { … }
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