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. */ 21 struct 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. */ 35 enum 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 80 struct 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