mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-24 20:54:10 +08:00
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>
105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
#ifndef LLC_IF_H
|
|
#define LLC_IF_H
|
|
/*
|
|
* Copyright (c) 1997 by Procom Technology,Inc.
|
|
* 2001 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
|
|
*
|
|
* This program can be redistributed or modified under the terms of the
|
|
* GNU General Public License as published by the Free Software Foundation.
|
|
* This program is distributed without any warranty or implied warranty
|
|
* of merchantability or fitness for a particular purpose.
|
|
*
|
|
* See the GNU General Public License for more details.
|
|
*/
|
|
/* Defines LLC interface to network layer */
|
|
/* Available primitives */
|
|
#include <linux/if.h>
|
|
#include <linux/if_arp.h>
|
|
#include <linux/llc.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <net/llc.h>
|
|
|
|
#define LLC_DATAUNIT_PRIM 1
|
|
#define LLC_CONN_PRIM 2
|
|
#define LLC_DATA_PRIM 3
|
|
#define LLC_DISC_PRIM 4
|
|
#define LLC_RESET_PRIM 5
|
|
#define LLC_FLOWCONTROL_PRIM 6 /* Not supported at this time */
|
|
#define LLC_DISABLE_PRIM 7
|
|
#define LLC_XID_PRIM 8
|
|
#define LLC_TEST_PRIM 9
|
|
#define LLC_SAP_ACTIVATION 10
|
|
#define LLC_SAP_DEACTIVATION 11
|
|
|
|
#define LLC_NBR_PRIMITIVES 11
|
|
|
|
#define LLC_IND 1
|
|
#define LLC_CONFIRM 2
|
|
|
|
/* Primitive type */
|
|
#define LLC_PRIM_TYPE_REQ 1
|
|
#define LLC_PRIM_TYPE_IND 2
|
|
#define LLC_PRIM_TYPE_RESP 3
|
|
#define LLC_PRIM_TYPE_CONFIRM 4
|
|
|
|
/* Reset reasons, remote entity or local LLC */
|
|
#define LLC_RESET_REASON_REMOTE 1
|
|
#define LLC_RESET_REASON_LOCAL 2
|
|
|
|
/* Disconnect reasons */
|
|
#define LLC_DISC_REASON_RX_DM_RSP_PDU 0
|
|
#define LLC_DISC_REASON_RX_DISC_CMD_PDU 1
|
|
#define LLC_DISC_REASON_ACK_TMR_EXP 2
|
|
|
|
/* Confirm reasons */
|
|
#define LLC_STATUS_CONN 0 /* connect confirm & reset confirm */
|
|
#define LLC_STATUS_DISC 1 /* connect confirm & reset confirm */
|
|
#define LLC_STATUS_FAILED 2 /* connect confirm & reset confirm */
|
|
#define LLC_STATUS_IMPOSSIBLE 3 /* connect confirm */
|
|
#define LLC_STATUS_RECEIVED 4 /* data conn */
|
|
#define LLC_STATUS_REMOTE_BUSY 5 /* data conn */
|
|
#define LLC_STATUS_REFUSE 6 /* data conn */
|
|
#define LLC_STATUS_CONFLICT 7 /* disconnect conn */
|
|
#define LLC_STATUS_RESET_DONE 8 /* */
|
|
|
|
/**
|
|
* llc_mac_null - determines if a address is a null mac address
|
|
* @mac: Mac address to test if null.
|
|
*
|
|
* Determines if a given address is a null mac address. Returns 0 if the
|
|
* address is not a null mac, 1 if the address is a null mac.
|
|
*/
|
|
static inline int llc_mac_null(const u8 *mac)
|
|
{
|
|
return is_zero_ether_addr(mac);
|
|
}
|
|
|
|
static inline int llc_addrany(const struct llc_addr *addr)
|
|
{
|
|
return llc_mac_null(addr->mac) && !addr->lsap;
|
|
}
|
|
|
|
static inline int llc_mac_multicast(const u8 *mac)
|
|
{
|
|
return is_multicast_ether_addr(mac);
|
|
}
|
|
/**
|
|
* llc_mac_match - determines if two mac addresses are the same
|
|
* @mac1: First mac address to compare.
|
|
* @mac2: Second mac address to compare.
|
|
*
|
|
* Determines if two given mac address are the same. Returns 0 if there
|
|
* is not a complete match up to len, 1 if a complete match up to len is
|
|
* found.
|
|
*/
|
|
static inline int llc_mac_match(const u8 *mac1, const u8 *mac2)
|
|
{
|
|
return !compare_ether_addr(mac1, mac2);
|
|
}
|
|
|
|
extern int llc_establish_connection(struct sock *sk, u8 *lmac,
|
|
u8 *dmac, u8 dsap);
|
|
extern int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb);
|
|
extern int llc_send_disc(struct sock *sk);
|
|
#endif /* LLC_IF_H */
|