llc_if.h

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#ifndef LLC_IF_H
#define LLC_IF_H
/*
 * Copyright (c) 1997 by Procom Technology,Inc.
 *       2001 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.
 */
/* 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 /*  */

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);
}
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 */