11da177e4SLinus Torvalds #ifndef LLC_IF_H 21da177e4SLinus Torvalds #define LLC_IF_H 31da177e4SLinus Torvalds /* 41da177e4SLinus Torvalds * Copyright (c) 1997 by Procom Technology,Inc. 51da177e4SLinus Torvalds * 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br> 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * This program can be redistributed or modified under the terms of the 81da177e4SLinus Torvalds * GNU General Public License as published by the Free Software Foundation. 91da177e4SLinus Torvalds * This program is distributed without any warranty or implied warranty 101da177e4SLinus Torvalds * of merchantability or fitness for a particular purpose. 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * See the GNU General Public License for more details. 131da177e4SLinus Torvalds */ 141da177e4SLinus Torvalds /* Defines LLC interface to network layer */ 151da177e4SLinus Torvalds /* Available primitives */ 161da177e4SLinus Torvalds #include <linux/if.h> 171da177e4SLinus Torvalds #include <linux/if_arp.h> 181da177e4SLinus Torvalds #include <linux/llc.h> 191da177e4SLinus Torvalds #include <net/llc.h> 201da177e4SLinus Torvalds 211da177e4SLinus Torvalds #define LLC_DATAUNIT_PRIM 1 221da177e4SLinus Torvalds #define LLC_CONN_PRIM 2 231da177e4SLinus Torvalds #define LLC_DATA_PRIM 3 241da177e4SLinus Torvalds #define LLC_DISC_PRIM 4 251da177e4SLinus Torvalds #define LLC_RESET_PRIM 5 261da177e4SLinus Torvalds #define LLC_FLOWCONTROL_PRIM 6 /* Not supported at this time */ 271da177e4SLinus Torvalds #define LLC_DISABLE_PRIM 7 281da177e4SLinus Torvalds #define LLC_XID_PRIM 8 291da177e4SLinus Torvalds #define LLC_TEST_PRIM 9 301da177e4SLinus Torvalds #define LLC_SAP_ACTIVATION 10 311da177e4SLinus Torvalds #define LLC_SAP_DEACTIVATION 11 321da177e4SLinus Torvalds 331da177e4SLinus Torvalds #define LLC_NBR_PRIMITIVES 11 341da177e4SLinus Torvalds 351da177e4SLinus Torvalds #define LLC_IND 1 361da177e4SLinus Torvalds #define LLC_CONFIRM 2 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds /* Primitive type */ 391da177e4SLinus Torvalds #define LLC_PRIM_TYPE_REQ 1 401da177e4SLinus Torvalds #define LLC_PRIM_TYPE_IND 2 411da177e4SLinus Torvalds #define LLC_PRIM_TYPE_RESP 3 421da177e4SLinus Torvalds #define LLC_PRIM_TYPE_CONFIRM 4 431da177e4SLinus Torvalds 441da177e4SLinus Torvalds /* Reset reasons, remote entity or local LLC */ 451da177e4SLinus Torvalds #define LLC_RESET_REASON_REMOTE 1 461da177e4SLinus Torvalds #define LLC_RESET_REASON_LOCAL 2 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds /* Disconnect reasons */ 491da177e4SLinus Torvalds #define LLC_DISC_REASON_RX_DM_RSP_PDU 0 501da177e4SLinus Torvalds #define LLC_DISC_REASON_RX_DISC_CMD_PDU 1 511da177e4SLinus Torvalds #define LLC_DISC_REASON_ACK_TMR_EXP 2 521da177e4SLinus Torvalds 531da177e4SLinus Torvalds /* Confirm reasons */ 541da177e4SLinus Torvalds #define LLC_STATUS_CONN 0 /* connect confirm & reset confirm */ 551da177e4SLinus Torvalds #define LLC_STATUS_DISC 1 /* connect confirm & reset confirm */ 561da177e4SLinus Torvalds #define LLC_STATUS_FAILED 2 /* connect confirm & reset confirm */ 571da177e4SLinus Torvalds #define LLC_STATUS_IMPOSSIBLE 3 /* connect confirm */ 581da177e4SLinus Torvalds #define LLC_STATUS_RECEIVED 4 /* data conn */ 591da177e4SLinus Torvalds #define LLC_STATUS_REMOTE_BUSY 5 /* data conn */ 601da177e4SLinus Torvalds #define LLC_STATUS_REFUSE 6 /* data conn */ 611da177e4SLinus Torvalds #define LLC_STATUS_CONFLICT 7 /* disconnect conn */ 621da177e4SLinus Torvalds #define LLC_STATUS_RESET_DONE 8 /* */ 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds extern u8 llc_mac_null_var[IFHWADDRLEN]; 651da177e4SLinus Torvalds 661da177e4SLinus Torvalds /** 671da177e4SLinus Torvalds * llc_mac_null - determines if a address is a null mac address 681da177e4SLinus Torvalds * @mac: Mac address to test if null. 691da177e4SLinus Torvalds * 701da177e4SLinus Torvalds * Determines if a given address is a null mac address. Returns 0 if the 711da177e4SLinus Torvalds * address is not a null mac, 1 if the address is a null mac. 721da177e4SLinus Torvalds */ 731da177e4SLinus Torvalds static __inline__ int llc_mac_null(u8 *mac) 741da177e4SLinus Torvalds { 751da177e4SLinus Torvalds return !memcmp(mac, llc_mac_null_var, IFHWADDRLEN); 761da177e4SLinus Torvalds } 771da177e4SLinus Torvalds 781da177e4SLinus Torvalds static __inline__ int llc_addrany(struct llc_addr *addr) 791da177e4SLinus Torvalds { 801da177e4SLinus Torvalds return llc_mac_null(addr->mac) && !addr->lsap; 811da177e4SLinus Torvalds } 821da177e4SLinus Torvalds 831da177e4SLinus Torvalds /** 841da177e4SLinus Torvalds * llc_mac_match - determines if two mac addresses are the same 851da177e4SLinus Torvalds * @mac1: First mac address to compare. 861da177e4SLinus Torvalds * @mac2: Second mac address to compare. 871da177e4SLinus Torvalds * 881da177e4SLinus Torvalds * Determines if two given mac address are the same. Returns 0 if there 891da177e4SLinus Torvalds * is not a complete match up to len, 1 if a complete match up to len is 901da177e4SLinus Torvalds * found. 911da177e4SLinus Torvalds */ 921da177e4SLinus Torvalds static __inline__ int llc_mac_match(u8 *mac1, u8 *mac2) 931da177e4SLinus Torvalds { 941da177e4SLinus Torvalds return !memcmp(mac1, mac2, IFHWADDRLEN); 951da177e4SLinus Torvalds } 961da177e4SLinus Torvalds 971da177e4SLinus Torvalds extern int llc_establish_connection(struct sock *sk, u8 *lmac, 981da177e4SLinus Torvalds u8 *dmac, u8 dsap); 991da177e4SLinus Torvalds extern int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb); 1001da177e4SLinus Torvalds extern int llc_send_disc(struct sock *sk); 1011da177e4SLinus Torvalds #endif /* LLC_IF_H */ 102