root/include/linux/llc.h

INCLUDED FROM

#ifndef __LINUX_LLC_H
#define __LINUX_LLC_H
/*
 * IEEE 802.2 User Interface SAPs for Linux, data structures and indicators.
 *
 * Copyright (c) 2001 by Jay Schulist <jschlst@samba.org>
 *
 * 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.
 */
#define __LLC_SOCK_SIZE__ 16    /* sizeof(sockaddr_llc), word align. */
struct sockaddr_llc {
        sa_family_t     sllc_family;    /* AF_LLC */
        sa_family_t     sllc_arphrd;    /* ARPHRD_ETHER */
        unsigned char   sllc_test;
        unsigned char   sllc_xid;
        unsigned char   sllc_ua;        /* UA data, only for SOCK_STREAM. */
        unsigned char   sllc_sap;
        unsigned char   sllc_mac[IFHWADDRLEN];
        unsigned char   __pad[__LLC_SOCK_SIZE__ - sizeof(sa_family_t) * 2 -
                              sizeof(unsigned char) * 4 - IFHWADDRLEN];
};

/* sockopt definitions. */
enum llc_sockopts {
        LLC_OPT_UNKNOWN = 0,
        LLC_OPT_RETRY,          /* max retrans attempts. */
        LLC_OPT_SIZE,           /* max PDU size (octets). */
        LLC_OPT_ACK_TMR_EXP,    /* ack expire time (secs). */
        LLC_OPT_P_TMR_EXP,      /* pf cycle expire time (secs). */
        LLC_OPT_REJ_TMR_EXP,    /* rej sent expire time (secs). */
        LLC_OPT_BUSY_TMR_EXP,   /* busy state expire time (secs). */
        LLC_OPT_TX_WIN,         /* tx window size. */
        LLC_OPT_RX_WIN,         /* rx window size. */
        LLC_OPT_MAX
};

#define LLC_OPT_MAX_RETRY        100
#define LLC_OPT_MAX_SIZE        4196
#define LLC_OPT_MAX_WIN          127
#define LLC_OPT_MAX_ACK_TMR_EXP   60
#define LLC_OPT_MAX_P_TMR_EXP     60
#define LLC_OPT_MAX_REJ_TMR_EXP   60
#define LLC_OPT_MAX_BUSY_TMR_EXP  60

/* LLC SAP types. */
#define LLC_SAP_NULL    0x00            /* NULL SAP.                    */
#define LLC_SAP_LLC     0x02            /* LLC Sublayer Management.     */
#define LLC_SAP_SNA     0x04            /* SNA Path Control.            */
#define LLC_SAP_PNM     0x0E            /* Proway Network Management.   */      
#define LLC_SAP_IP      0x06            /* TCP/IP.                      */
#define LLC_SAP_BSPAN   0x42            /* Bridge Spanning Tree Proto   */
#define LLC_SAP_MMS     0x4E            /* Manufacturing Message Srv.   */
#define LLC_SAP_8208    0x7E            /* ISO 8208                     */
#define LLC_SAP_3COM    0x80            /* 3COM.                        */
#define LLC_SAP_PRO     0x8E            /* Proway Active Station List   */
#define LLC_SAP_SNAP    0xAA            /* SNAP.                        */
#define LLC_SAP_BANYAN  0xBC            /* Banyan.                      */
#define LLC_SAP_IPX     0xE0            /* IPX/SPX.                     */
#define LLC_SAP_NETBEUI 0xF0            /* NetBEUI.                     */
#define LLC_SAP_LANMGR  0xF4            /* LanManager.                  */
#define LLC_SAP_IMPL    0xF8            /* IMPL                         */
#define LLC_SAP_DISC    0xFC            /* Discovery                    */
#define LLC_SAP_OSI     0xFE            /* OSI Network Layers.          */
#define LLC_SAP_LAR     0xDC            /* LAN Address Resolution       */
#define LLC_SAP_RM      0xD4            /* Resource Management          */
#define LLC_SAP_GLOBAL  0xFF            /* Global SAP.                  */

#ifdef __KERNEL__
#define LLC_SAP_DYN_START       0xC0
#define LLC_SAP_DYN_STOP        0xDE
#define LLC_SAP_DYN_TRIES       4

#define llc_ui_skb_cb(__skb) ((struct sockaddr_llc *)&((__skb)->cb[0]))
#endif /* __KERNEL__ */
#endif /* __LINUX_LLC_H */