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      1 #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 (at) 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  */
     15 #define __LLC_SOCK_SIZE__ 16	/* sizeof(sockaddr_llc), word align. */
     16 struct sockaddr_llc {
     17 	sa_family_t     sllc_family;	/* AF_LLC */
     18 	sa_family_t	sllc_arphrd;	/* ARPHRD_ETHER */
     19 	unsigned char   sllc_test;
     20 	unsigned char   sllc_xid;
     21 	unsigned char	sllc_ua;	/* UA data, only for SOCK_STREAM. */
     22 	unsigned char   sllc_sap;
     23 	unsigned char   sllc_mac[IFHWADDRLEN];
     24 	unsigned char   __pad[__LLC_SOCK_SIZE__ - sizeof(sa_family_t) * 2 -
     25 			      sizeof(unsigned char) * 4 - IFHWADDRLEN];
     26 };
     27 
     28 /* sockopt definitions. */
     29 enum llc_sockopts {
     30 	LLC_OPT_UNKNOWN = 0,
     31 	LLC_OPT_RETRY,		/* max retrans attempts. */
     32 	LLC_OPT_SIZE,		/* max PDU size (octets). */
     33 	LLC_OPT_ACK_TMR_EXP,	/* ack expire time (secs). */
     34 	LLC_OPT_P_TMR_EXP,	/* pf cycle expire time (secs). */
     35 	LLC_OPT_REJ_TMR_EXP,	/* rej sent expire time (secs). */
     36 	LLC_OPT_BUSY_TMR_EXP,	/* busy state expire time (secs). */
     37 	LLC_OPT_TX_WIN,		/* tx window size. */
     38 	LLC_OPT_RX_WIN,		/* rx window size. */
     39 	LLC_OPT_MAX
     40 };
     41 
     42 #define LLC_OPT_MAX_RETRY	 100
     43 #define LLC_OPT_MAX_SIZE	4196
     44 #define LLC_OPT_MAX_WIN		 127
     45 #define LLC_OPT_MAX_ACK_TMR_EXP	  60
     46 #define LLC_OPT_MAX_P_TMR_EXP	  60
     47 #define LLC_OPT_MAX_REJ_TMR_EXP	  60
     48 #define LLC_OPT_MAX_BUSY_TMR_EXP  60
     49 
     50 /* LLC SAP types. */
     51 #define LLC_SAP_NULL	0x00		/* NULL SAP. 			*/
     52 #define LLC_SAP_LLC	0x02		/* LLC Sublayer Managment. 	*/
     53 #define LLC_SAP_SNA	0x04		/* SNA Path Control. 		*/
     54 #define LLC_SAP_PNM	0x0E		/* Proway Network Managment.	*/
     55 #define LLC_SAP_IP	0x06		/* TCP/IP. 			*/
     56 #define LLC_SAP_BSPAN	0x42		/* Bridge Spanning Tree Proto	*/
     57 #define LLC_SAP_MMS	0x4E		/* Manufacturing Message Srv.	*/
     58 #define LLC_SAP_8208	0x7E		/* ISO 8208			*/
     59 #define LLC_SAP_3COM	0x80		/* 3COM. 			*/
     60 #define LLC_SAP_PRO	0x8E		/* Proway Active Station List	*/
     61 #define LLC_SAP_SNAP	0xAA		/* SNAP. 			*/
     62 #define LLC_SAP_BANYAN	0xBC		/* Banyan. 			*/
     63 #define LLC_SAP_IPX	0xE0		/* IPX/SPX. 			*/
     64 #define LLC_SAP_NETBEUI	0xF0		/* NetBEUI. 			*/
     65 #define LLC_SAP_LANMGR	0xF4		/* LanManager. 			*/
     66 #define LLC_SAP_IMPL	0xF8		/* IMPL				*/
     67 #define LLC_SAP_DISC	0xFC		/* Discovery			*/
     68 #define LLC_SAP_OSI	0xFE		/* OSI Network Layers. 		*/
     69 #define LLC_SAP_LAR	0xDC		/* LAN Address Resolution 	*/
     70 #define LLC_SAP_RM	0xD4		/* Resource Management 		*/
     71 #define LLC_SAP_GLOBAL	0xFF		/* Global SAP. 			*/
     72 
     73 #endif /* __LINUX_LLC_H */
     74