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/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
/*
* 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.
*/
#ifndef __LINUX_LLC_H
#define __LINUX_LLC_H
#include <linux/socket.h>
#include <linux/if.h> /* For IFHWADDRLEN. */
#define __LLC_SOCK_SIZE__ 16 /* sizeof(sockaddr_llc), word align. */
struct sockaddr_llc {
__kernel_sa_family_t sllc_family; /* AF_LLC */
__kernel_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(__kernel_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_PKTINFO, /* ancillary packet information. */
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. */
struct llc_pktinfo {
int lpi_ifindex;
unsigned char lpi_sap;
unsigned char lpi_mac[IFHWADDRLEN];
};
#endif /* __LINUX_LLC_H */