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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __LINUX_LLC_H
2#define __LINUX_LLC_H
3/*
4 * IEEE 802.2 User Interface SAPs for Linux, data structures and indicators.
5 *
6 * Copyright (c) 2001 by Jay Schulist <jschlst@samba.org>
7 *
8 * This program can be redistributed or modified under the terms of the
9 * GNU General Public License as published by the Free Software Foundation.
10 * This program is distributed without any warranty or implied warranty
11 * of merchantability or fitness for a particular purpose.
12 *
13 * See the GNU General Public License for more details.
14 */
Ben Hutchingsbcb949b2011-08-24 18:43:55 +000015
16#include <linux/socket.h>
17
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#define __LLC_SOCK_SIZE__ 16 /* sizeof(sockaddr_llc), word align. */
19struct sockaddr_llc {
Ben Hutchingsbcb949b2011-08-24 18:43:55 +000020 __kernel_sa_family_t sllc_family; /* AF_LLC */
21 __kernel_sa_family_t sllc_arphrd; /* ARPHRD_ETHER */
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 unsigned char sllc_test;
23 unsigned char sllc_xid;
24 unsigned char sllc_ua; /* UA data, only for SOCK_STREAM. */
25 unsigned char sllc_sap;
26 unsigned char sllc_mac[IFHWADDRLEN];
Ben Hutchingsbcb949b2011-08-24 18:43:55 +000027 unsigned char __pad[__LLC_SOCK_SIZE__ -
28 sizeof(__kernel_sa_family_t) * 2 -
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 sizeof(unsigned char) * 4 - IFHWADDRLEN];
30};
31
32/* sockopt definitions. */
33enum llc_sockopts {
34 LLC_OPT_UNKNOWN = 0,
35 LLC_OPT_RETRY, /* max retrans attempts. */
36 LLC_OPT_SIZE, /* max PDU size (octets). */
37 LLC_OPT_ACK_TMR_EXP, /* ack expire time (secs). */
38 LLC_OPT_P_TMR_EXP, /* pf cycle expire time (secs). */
39 LLC_OPT_REJ_TMR_EXP, /* rej sent expire time (secs). */
40 LLC_OPT_BUSY_TMR_EXP, /* busy state expire time (secs). */
41 LLC_OPT_TX_WIN, /* tx window size. */
42 LLC_OPT_RX_WIN, /* rx window size. */
Octavian Purdilae5cd6fe2009-12-26 11:51:00 +000043 LLC_OPT_PKTINFO, /* ancillary packet information. */
Linus Torvalds1da177e2005-04-16 15:20:36 -070044 LLC_OPT_MAX
45};
46
47#define LLC_OPT_MAX_RETRY 100
48#define LLC_OPT_MAX_SIZE 4196
49#define LLC_OPT_MAX_WIN 127
50#define LLC_OPT_MAX_ACK_TMR_EXP 60
51#define LLC_OPT_MAX_P_TMR_EXP 60
52#define LLC_OPT_MAX_REJ_TMR_EXP 60
53#define LLC_OPT_MAX_BUSY_TMR_EXP 60
54
55/* LLC SAP types. */
56#define LLC_SAP_NULL 0x00 /* NULL SAP. */
Joe Perchesfd3f8982008-02-03 17:45:46 +020057#define LLC_SAP_LLC 0x02 /* LLC Sublayer Management. */
Linus Torvalds1da177e2005-04-16 15:20:36 -070058#define LLC_SAP_SNA 0x04 /* SNA Path Control. */
Joe Perchesfd3f8982008-02-03 17:45:46 +020059#define LLC_SAP_PNM 0x0E /* Proway Network Management. */
Linus Torvalds1da177e2005-04-16 15:20:36 -070060#define LLC_SAP_IP 0x06 /* TCP/IP. */
61#define LLC_SAP_BSPAN 0x42 /* Bridge Spanning Tree Proto */
62#define LLC_SAP_MMS 0x4E /* Manufacturing Message Srv. */
63#define LLC_SAP_8208 0x7E /* ISO 8208 */
64#define LLC_SAP_3COM 0x80 /* 3COM. */
65#define LLC_SAP_PRO 0x8E /* Proway Active Station List */
66#define LLC_SAP_SNAP 0xAA /* SNAP. */
67#define LLC_SAP_BANYAN 0xBC /* Banyan. */
68#define LLC_SAP_IPX 0xE0 /* IPX/SPX. */
69#define LLC_SAP_NETBEUI 0xF0 /* NetBEUI. */
70#define LLC_SAP_LANMGR 0xF4 /* LanManager. */
71#define LLC_SAP_IMPL 0xF8 /* IMPL */
72#define LLC_SAP_DISC 0xFC /* Discovery */
73#define LLC_SAP_OSI 0xFE /* OSI Network Layers. */
74#define LLC_SAP_LAR 0xDC /* LAN Address Resolution */
75#define LLC_SAP_RM 0xD4 /* Resource Management */
76#define LLC_SAP_GLOBAL 0xFF /* Global SAP. */
77
Octavian Purdilae5cd6fe2009-12-26 11:51:00 +000078struct llc_pktinfo {
79 int lpi_ifindex;
80 unsigned char lpi_sap;
81 unsigned char lpi_mac[IFHWADDRLEN];
82};
83
Linus Torvalds1da177e2005-04-16 15:20:36 -070084#ifdef __KERNEL__
85#define LLC_SAP_DYN_START 0xC0
86#define LLC_SAP_DYN_STOP 0xDE
87#define LLC_SAP_DYN_TRIES 4
88
89#define llc_ui_skb_cb(__skb) ((struct sockaddr_llc *)&((__skb)->cb[0]))
90#endif /* __KERNEL__ */
91#endif /* __LINUX_LLC_H */