Current File : //usr/src/kernels/3.10.0-957.21.3.el7.centos.plus.x86_64/include/net/llc_if.h
#ifndef LLC_IF_H
#define LLC_IF_H
/*
* Copyright (c) 1997 by Procom Technology,Inc.
* 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
*
* 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.
*/
/* Defines LLC interface to network layer */
/* Available primitives */
#include <linux/if.h>
#include <linux/if_arp.h>
#include <linux/llc.h>
#include <linux/etherdevice.h>
#include <net/llc.h>
#define LLC_DATAUNIT_PRIM 1
#define LLC_CONN_PRIM 2
#define LLC_DATA_PRIM 3
#define LLC_DISC_PRIM 4
#define LLC_RESET_PRIM 5
#define LLC_FLOWCONTROL_PRIM 6 /* Not supported at this time */
#define LLC_DISABLE_PRIM 7
#define LLC_XID_PRIM 8
#define LLC_TEST_PRIM 9
#define LLC_SAP_ACTIVATION 10
#define LLC_SAP_DEACTIVATION 11
#define LLC_NBR_PRIMITIVES 11
#define LLC_IND 1
#define LLC_CONFIRM 2
/* Primitive type */
#define LLC_PRIM_TYPE_REQ 1
#define LLC_PRIM_TYPE_IND 2
#define LLC_PRIM_TYPE_RESP 3
#define LLC_PRIM_TYPE_CONFIRM 4
/* Reset reasons, remote entity or local LLC */
#define LLC_RESET_REASON_REMOTE 1
#define LLC_RESET_REASON_LOCAL 2
/* Disconnect reasons */
#define LLC_DISC_REASON_RX_DM_RSP_PDU 0
#define LLC_DISC_REASON_RX_DISC_CMD_PDU 1
#define LLC_DISC_REASON_ACK_TMR_EXP 2
/* Confirm reasons */
#define LLC_STATUS_CONN 0 /* connect confirm & reset confirm */
#define LLC_STATUS_DISC 1 /* connect confirm & reset confirm */
#define LLC_STATUS_FAILED 2 /* connect confirm & reset confirm */
#define LLC_STATUS_IMPOSSIBLE 3 /* connect confirm */
#define LLC_STATUS_RECEIVED 4 /* data conn */
#define LLC_STATUS_REMOTE_BUSY 5 /* data conn */
#define LLC_STATUS_REFUSE 6 /* data conn */
#define LLC_STATUS_CONFLICT 7 /* disconnect conn */
#define LLC_STATUS_RESET_DONE 8 /* */
/**
* llc_mac_null - determines if a address is a null mac address
* @mac: Mac address to test if null.
*
* Determines if a given address is a null mac address. Returns 0 if the
* address is not a null mac, 1 if the address is a null mac.
*/
static inline int llc_mac_null(const u8 *mac)
{
return is_zero_ether_addr(mac);
}
static inline int llc_mac_multicast(const u8 *mac)
{
return is_multicast_ether_addr(mac);
}
/**
* llc_mac_match - determines if two mac addresses are the same
* @mac1: First mac address to compare.
* @mac2: Second mac address to compare.
*
* Determines if two given mac address are the same. Returns 0 if there
* is not a complete match up to len, 1 if a complete match up to len is
* found.
*/
static inline int llc_mac_match(const u8 *mac1, const u8 *mac2)
{
return !compare_ether_addr(mac1, mac2);
}
extern int llc_establish_connection(struct sock *sk, u8 *lmac,
u8 *dmac, u8 dsap);
extern int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb);
extern int llc_send_disc(struct sock *sk);
#endif /* LLC_IF_H */
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