1/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
2/*
3 * IEEE 802.2 User Interface SAPs for Linux, data structures and indicators.
4 *
5 * Copyright (c) 2001 by Jay Schulist <jschlst@samba.org>
6 *
7 * This program can be redistributed or modified under the terms of the
8 * GNU General Public License as published by the Free Software Foundation.
9 * This program is distributed without any warranty or implied warranty
10 * of merchantability or fitness for a particular purpose.
11 *
12 * See the GNU General Public License for more details.
13 */
14#ifndef _UAPI__LINUX_LLC_H
15#define _UAPI__LINUX_LLC_H
16
17#include <linux/socket.h>
18#include <linux/if.h> /* For IFHWADDRLEN. */
19
20#define __LLC_SOCK_SIZE__ 16 /* sizeof(sockaddr_llc), word align. */
21struct sockaddr_llc {
22 __kernel_sa_family_t sllc_family; /* AF_LLC */
23 __kernel_sa_family_t sllc_arphrd; /* ARPHRD_ETHER */
24 unsigned char sllc_test;
25 unsigned char sllc_xid;
26 unsigned char sllc_ua; /* UA data, only for SOCK_STREAM. */
27 unsigned char sllc_sap;
28 unsigned char sllc_mac[IFHWADDRLEN];
29 unsigned char __pad[__LLC_SOCK_SIZE__ -
30 sizeof(__kernel_sa_family_t) * 2 -
31 sizeof(unsigned char) * 4 - IFHWADDRLEN];
32};
33
34/* sockopt definitions. */
35enum llc_sockopts {
36 LLC_OPT_UNKNOWN = 0,
37 LLC_OPT_RETRY, /* max retrans attempts. */
38 LLC_OPT_SIZE, /* max PDU size (octets). */
39 LLC_OPT_ACK_TMR_EXP, /* ack expire time (secs). */
40 LLC_OPT_P_TMR_EXP, /* pf cycle expire time (secs). */
41 LLC_OPT_REJ_TMR_EXP, /* rej sent expire time (secs). */
42 LLC_OPT_BUSY_TMR_EXP, /* busy state expire time (secs). */
43 LLC_OPT_TX_WIN, /* tx window size. */
44 LLC_OPT_RX_WIN, /* rx window size. */
45 LLC_OPT_PKTINFO, /* ancillary packet information. */
46 LLC_OPT_MAX
47};
48
49#define LLC_OPT_MAX_RETRY 100
50#define LLC_OPT_MAX_SIZE 4196
51#define LLC_OPT_MAX_WIN 127
52#define LLC_OPT_MAX_ACK_TMR_EXP 60
53#define LLC_OPT_MAX_P_TMR_EXP 60
54#define LLC_OPT_MAX_REJ_TMR_EXP 60
55#define LLC_OPT_MAX_BUSY_TMR_EXP 60
56
57/* LLC SAP types. */
58#define LLC_SAP_NULL 0x00 /* NULL SAP. */
59#define LLC_SAP_LLC 0x02 /* LLC Sublayer Management. */
60#define LLC_SAP_SNA 0x04 /* SNA Path Control. */
61#define LLC_SAP_PNM 0x0E /* Proway Network Management. */
62#define LLC_SAP_IP 0x06 /* TCP/IP. */
63#define LLC_SAP_BSPAN 0x42 /* Bridge Spanning Tree Proto */
64#define LLC_SAP_MMS 0x4E /* Manufacturing Message Srv. */
65#define LLC_SAP_8208 0x7E /* ISO 8208 */
66#define LLC_SAP_3COM 0x80 /* 3COM. */
67#define LLC_SAP_PRO 0x8E /* Proway Active Station List */
68#define LLC_SAP_SNAP 0xAA /* SNAP. */
69#define LLC_SAP_BANYAN 0xBC /* Banyan. */
70#define LLC_SAP_IPX 0xE0 /* IPX/SPX. */
71#define LLC_SAP_NETBEUI 0xF0 /* NetBEUI. */
72#define LLC_SAP_LANMGR 0xF4 /* LanManager. */
73#define LLC_SAP_IMPL 0xF8 /* IMPL */
74#define LLC_SAP_DISC 0xFC /* Discovery */
75#define LLC_SAP_OSI 0xFE /* OSI Network Layers. */
76#define LLC_SAP_LAR 0xDC /* LAN Address Resolution */
77#define LLC_SAP_RM 0xD4 /* Resource Management */
78#define LLC_SAP_GLOBAL 0xFF /* Global SAP. */
79
80struct llc_pktinfo {
81 int lpi_ifindex;
82 unsigned char lpi_sap;
83 unsigned char lpi_mac[IFHWADDRLEN];
84};
85
86#endif /* _UAPI__LINUX_LLC_H */
87

source code of linux/include/uapi/linux/llc.h