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bc0e646796
Allow mulitcast reception of datagrams (similar to UDP). All sockets bound to the same SAP receive a clone. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
104 lines
3.1 KiB
C
104 lines
3.1 KiB
C
#ifndef LLC_IF_H
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#define LLC_IF_H
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/*
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* Copyright (c) 1997 by Procom Technology,Inc.
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* 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
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*
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* This program can be redistributed or modified under the terms of the
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* GNU General Public License as published by the Free Software Foundation.
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* This program is distributed without any warranty or implied warranty
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* of merchantability or fitness for a particular purpose.
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*
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* See the GNU General Public License for more details.
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*/
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/* Defines LLC interface to network layer */
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/* Available primitives */
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#include <linux/if.h>
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#include <linux/if_arp.h>
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#include <linux/llc.h>
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#include <linux/etherdevice.h>
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#include <net/llc.h>
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#define LLC_DATAUNIT_PRIM 1
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#define LLC_CONN_PRIM 2
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#define LLC_DATA_PRIM 3
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#define LLC_DISC_PRIM 4
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#define LLC_RESET_PRIM 5
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#define LLC_FLOWCONTROL_PRIM 6 /* Not supported at this time */
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#define LLC_DISABLE_PRIM 7
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#define LLC_XID_PRIM 8
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#define LLC_TEST_PRIM 9
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#define LLC_SAP_ACTIVATION 10
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#define LLC_SAP_DEACTIVATION 11
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#define LLC_NBR_PRIMITIVES 11
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#define LLC_IND 1
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#define LLC_CONFIRM 2
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/* Primitive type */
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#define LLC_PRIM_TYPE_REQ 1
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#define LLC_PRIM_TYPE_IND 2
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#define LLC_PRIM_TYPE_RESP 3
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#define LLC_PRIM_TYPE_CONFIRM 4
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/* Reset reasons, remote entity or local LLC */
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#define LLC_RESET_REASON_REMOTE 1
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#define LLC_RESET_REASON_LOCAL 2
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/* Disconnect reasons */
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#define LLC_DISC_REASON_RX_DM_RSP_PDU 0
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#define LLC_DISC_REASON_RX_DISC_CMD_PDU 1
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#define LLC_DISC_REASON_ACK_TMR_EXP 2
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/* Confirm reasons */
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#define LLC_STATUS_CONN 0 /* connect confirm & reset confirm */
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#define LLC_STATUS_DISC 1 /* connect confirm & reset confirm */
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#define LLC_STATUS_FAILED 2 /* connect confirm & reset confirm */
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#define LLC_STATUS_IMPOSSIBLE 3 /* connect confirm */
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#define LLC_STATUS_RECEIVED 4 /* data conn */
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#define LLC_STATUS_REMOTE_BUSY 5 /* data conn */
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#define LLC_STATUS_REFUSE 6 /* data conn */
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#define LLC_STATUS_CONFLICT 7 /* disconnect conn */
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#define LLC_STATUS_RESET_DONE 8 /* */
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/**
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* llc_mac_null - determines if a address is a null mac address
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* @mac: Mac address to test if null.
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*
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* Determines if a given address is a null mac address. Returns 0 if the
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* address is not a null mac, 1 if the address is a null mac.
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*/
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static inline int llc_mac_null(const u8 *mac)
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{
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return is_zero_ether_addr(mac);
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}
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static inline int llc_addrany(const struct llc_addr *addr)
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{
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return llc_mac_null(addr->mac) && !addr->lsap;
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}
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static inline int llc_mac_multicast(const u8 *mac)
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{
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return is_multicast_ether_addr(mac);
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}
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/**
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* llc_mac_match - determines if two mac addresses are the same
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* @mac1: First mac address to compare.
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* @mac2: Second mac address to compare.
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*
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* Determines if two given mac address are the same. Returns 0 if there
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* is not a complete match up to len, 1 if a complete match up to len is
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* found.
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*/
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static inline int llc_mac_match(const u8 *mac1, const u8 *mac2)
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{
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return !compare_ether_addr(mac1, mac2);
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}
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extern int llc_establish_connection(struct sock *sk, u8 *lmac,
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u8 *dmac, u8 dsap);
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extern int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb);
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extern int llc_send_disc(struct sock *sk);
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#endif /* LLC_IF_H */
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