Added token ring network support.
This commit is contained in:
pdw
6
CHANGES
6
CHANGES
@@ -1,6 +1,12 @@
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||||
Change log for iftop
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||||
$Id$
|
||||
|
||||
0.11
|
||||
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||||
Added support for token ring networks
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Token ring network direction determination
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Martin Garton <Martin.Garton@DCSTRANS.COM>
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|
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0.10 29/10/02
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||||
User selectable sort criteria
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||||
|
||||
5
Makefile
5
Makefile
@@ -5,7 +5,7 @@
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||||
# $Id$
|
||||
#
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||||
|
||||
VERSION = 0.10
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||||
VERSION = 0.11pre1
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||||
|
||||
# C compiler to use.
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#CC = gcc
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||||
@@ -73,7 +73,8 @@ LDLIBS += -lpcap -lcurses -lm
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||||
SRCS = iftop.c addr_hash.c hash.c ns_hash.c resolver.c ui.c util.c sorted_list.c\
|
||||
options.c serv_hash.c threadprof.c edline.c screenfilter.c
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||||
HDRS = addr_hash.h hash.h iftop.h ns_hash.h resolver.h sorted_list.h ui.h options.h sll.h\
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||||
serv_hash.h threadprof.h ether.h ip.h tcp.h screenfilter.h
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||||
serv_hash.h threadprof.h ether.h ip.h tcp.h screenfilter.h token.h llc.h \
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extract.h ethertype.h
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||||
TXTS = README CHANGES INSTALL TODO iftop.8 COPYING
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SPECFILE = iftop.spec iftop.spec.in
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|
||||
|
||||
122
ethertype.h
Normal file
122
ethertype.h
Normal file
@@ -0,0 +1,122 @@
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||||
/*
|
||||
* Copyright (c) 1993, 1994, 1996
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that: (1) source code distributions
|
||||
* retain the above copyright notice and this paragraph in its entirety, (2)
|
||||
* distributions including binary code include the above copyright notice and
|
||||
* this paragraph in its entirety in the documentation or other materials
|
||||
* provided with the distribution, and (3) all advertising materials mentioning
|
||||
* features or use of this software display the following acknowledgement:
|
||||
* ``This product includes software developed by the University of California,
|
||||
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
|
||||
* the University nor the names of its contributors may be used to endorse
|
||||
* or promote products derived from this software without specific prior
|
||||
* written permission.
|
||||
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
||||
*
|
||||
* @(#) $Header$ (LBL)
|
||||
*/
|
||||
|
||||
/*
|
||||
* Ethernet types.
|
||||
*
|
||||
* We wrap the declarations with #ifdef, so that if a file includes
|
||||
* <netinet/if_ether.h>, which may declare some of these, we don't
|
||||
* get a bunch of complaints from the C compiler about redefinitions
|
||||
* of these values.
|
||||
*
|
||||
* We declare all of them here so that no file has to include
|
||||
* <netinet/if_ether.h> if all it needs are ETHERTYPE_ values.
|
||||
*/
|
||||
|
||||
#ifndef ETHERTYPE_PUP
|
||||
#define ETHERTYPE_PUP 0x0200 /* PUP protocol */
|
||||
#endif
|
||||
#ifndef ETHERTYPE_IP
|
||||
#define ETHERTYPE_IP 0x0800 /* IP protocol */
|
||||
#endif
|
||||
#ifndef ETHERTYPE_ARP
|
||||
#define ETHERTYPE_ARP 0x0806 /* Addr. resolution protocol */
|
||||
#endif
|
||||
#ifndef ETHERTYPE_REVARP
|
||||
#define ETHERTYPE_REVARP 0x8035 /* reverse Addr. resolution protocol */
|
||||
#endif
|
||||
#ifndef ETHERTYPE_NS
|
||||
#define ETHERTYPE_NS 0x0600
|
||||
#endif
|
||||
#ifndef ETHERTYPE_SPRITE
|
||||
#define ETHERTYPE_SPRITE 0x0500
|
||||
#endif
|
||||
#ifndef ETHERTYPE_TRAIL
|
||||
#define ETHERTYPE_TRAIL 0x1000
|
||||
#endif
|
||||
#ifndef ETHERTYPE_MOPDL
|
||||
#define ETHERTYPE_MOPDL 0x6001
|
||||
#endif
|
||||
#ifndef ETHERTYPE_MOPRC
|
||||
#define ETHERTYPE_MOPRC 0x6002
|
||||
#endif
|
||||
#ifndef ETHERTYPE_DN
|
||||
#define ETHERTYPE_DN 0x6003
|
||||
#endif
|
||||
#ifndef ETHERTYPE_LAT
|
||||
#define ETHERTYPE_LAT 0x6004
|
||||
#endif
|
||||
#ifndef ETHERTYPE_SCA
|
||||
#define ETHERTYPE_SCA 0x6007
|
||||
#endif
|
||||
#ifndef ETHERTYPE_REVARP
|
||||
#define ETHERTYPE_REVARP 0x8035
|
||||
#endif
|
||||
#ifndef ETHERTYPE_LANBRIDGE
|
||||
#define ETHERTYPE_LANBRIDGE 0x8038
|
||||
#endif
|
||||
#ifndef ETHERTYPE_DECDNS
|
||||
#define ETHERTYPE_DECDNS 0x803c
|
||||
#endif
|
||||
#ifndef ETHERTYPE_DECDTS
|
||||
#define ETHERTYPE_DECDTS 0x803e
|
||||
#endif
|
||||
#ifndef ETHERTYPE_VEXP
|
||||
#define ETHERTYPE_VEXP 0x805b
|
||||
#endif
|
||||
#ifndef ETHERTYPE_VPROD
|
||||
#define ETHERTYPE_VPROD 0x805c
|
||||
#endif
|
||||
#ifndef ETHERTYPE_ATALK
|
||||
#define ETHERTYPE_ATALK 0x809b
|
||||
#endif
|
||||
#ifndef ETHERTYPE_AARP
|
||||
#define ETHERTYPE_AARP 0x80f3
|
||||
#endif
|
||||
#ifndef ETHERTYPE_8021Q
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||||
#define ETHERTYPE_8021Q 0x8100
|
||||
#endif
|
||||
#ifndef ETHERTYPE_IPX
|
||||
#define ETHERTYPE_IPX 0x8137
|
||||
#endif
|
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#ifndef ETHERTYPE_IPV6
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||||
#define ETHERTYPE_IPV6 0x86dd
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||||
#endif
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#ifndef ETHERTYPE_PPP
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#define ETHERTYPE_PPP 0x880b
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#endif
|
||||
#ifndef ETHERTYPE_MPLS
|
||||
#define ETHERTYPE_MPLS 0x8847
|
||||
#endif
|
||||
#ifndef ETHERTYPE_MPLS_MULTI
|
||||
#define ETHERTYPE_MPLS_MULTI 0x8848
|
||||
#endif
|
||||
#ifndef ETHERTYPE_PPPOED
|
||||
#define ETHERTYPE_PPPOED 0x8863
|
||||
#endif
|
||||
#ifndef ETHERTYPE_PPPOES
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#define ETHERTYPE_PPPOES 0x8864
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||||
#endif
|
||||
#ifndef ETHERTYPE_LOOPBACK
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#define ETHERTYPE_LOOPBACK 0x9000
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||||
#endif
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||||
57
extract.h
Normal file
57
extract.h
Normal file
@@ -0,0 +1,57 @@
|
||||
/*
|
||||
* Copyright (c) 1992, 1993, 1994, 1995, 1996
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that: (1) source code distributions
|
||||
* retain the above copyright notice and this paragraph in its entirety, (2)
|
||||
* distributions including binary code include the above copyright notice and
|
||||
* this paragraph in its entirety in the documentation or other materials
|
||||
* provided with the distribution, and (3) all advertising materials mentioning
|
||||
* features or use of this software display the following acknowledgement:
|
||||
* ``This product includes software developed by the University of California,
|
||||
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
|
||||
* the University nor the names of its contributors may be used to endorse
|
||||
* or promote products derived from this software without specific prior
|
||||
* written permission.
|
||||
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
||||
*
|
||||
* @(#) $Header$ (LBL)
|
||||
*/
|
||||
|
||||
/* Network to host order macros */
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||||
|
||||
#ifdef LBL_ALIGN
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||||
#define EXTRACT_16BITS(p) \
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||||
((u_int16_t)*((const u_int8_t *)(p) + 0) << 8 | \
|
||||
(u_int16_t)*((const u_int8_t *)(p) + 1))
|
||||
#define EXTRACT_32BITS(p) \
|
||||
((u_int32_t)*((const u_int8_t *)(p) + 0) << 24 | \
|
||||
(u_int32_t)*((const u_int8_t *)(p) + 1) << 16 | \
|
||||
(u_int32_t)*((const u_int8_t *)(p) + 2) << 8 | \
|
||||
(u_int32_t)*((const u_int8_t *)(p) + 3))
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||||
#else
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||||
#define EXTRACT_16BITS(p) \
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||||
((u_int16_t)ntohs(*(const u_int16_t *)(p)))
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||||
#define EXTRACT_32BITS(p) \
|
||||
((u_int32_t)ntohl(*(const u_int32_t *)(p)))
|
||||
#endif
|
||||
|
||||
#define EXTRACT_24BITS(p) \
|
||||
((u_int32_t)*((const u_int8_t *)(p) + 0) << 16 | \
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||||
(u_int32_t)*((const u_int8_t *)(p) + 1) << 8 | \
|
||||
(u_int32_t)*((const u_int8_t *)(p) + 2))
|
||||
|
||||
/* Little endian protocol host order macros */
|
||||
|
||||
#define EXTRACT_LE_8BITS(p) (*(p))
|
||||
#define EXTRACT_LE_16BITS(p) \
|
||||
((u_int16_t)*((const u_int8_t *)(p) + 1) << 8 | \
|
||||
(u_int16_t)*((const u_int8_t *)(p) + 0))
|
||||
#define EXTRACT_LE_32BITS(p) \
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((u_int32_t)*((const u_int8_t *)(p) + 3) << 24 | \
|
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(u_int32_t)*((const u_int8_t *)(p) + 2) << 16 | \
|
||||
(u_int32_t)*((const u_int8_t *)(p) + 1) << 8 | \
|
||||
(u_int32_t)*((const u_int8_t *)(p) + 0))
|
||||
61
iftop.c
61
iftop.c
@@ -30,6 +30,10 @@
|
||||
#include "ether.h"
|
||||
#include "ip.h"
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||||
#include "tcp.h"
|
||||
#include "token.h"
|
||||
#include "llc.h"
|
||||
#include "extract.h"
|
||||
#include "ethertype.h"
|
||||
|
||||
|
||||
unsigned char if_hw_addr[6]; /* ethernet address of interface. */
|
||||
@@ -257,6 +261,59 @@ static void handle_raw_packet(unsigned char* args, const struct pcap_pkthdr* pkt
|
||||
handle_ip_packet((struct ip*)packet, -1);
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||||
}
|
||||
|
||||
static void handle_llc_packet(const struct llc* llc, int dir) {
|
||||
|
||||
struct ip* ip = (struct ip*)((void*)llc + sizeof(struct llc));
|
||||
|
||||
/* Taken from tcpdump/print-llc.c */
|
||||
if(llc->ssap == LLCSAP_SNAP && llc->dsap == LLCSAP_SNAP
|
||||
&& llc->llcui == LLC_UI) {
|
||||
u_int32_t orgcode;
|
||||
register u_short et;
|
||||
orgcode = EXTRACT_24BITS(&llc->llc_orgcode[0]);
|
||||
et = EXTRACT_16BITS(&llc->llc_ethertype[0]);
|
||||
switch(orgcode) {
|
||||
case OUI_ENCAP_ETHER:
|
||||
case OUI_CISCO_90:
|
||||
handle_ip_packet(ip, dir);
|
||||
break;
|
||||
case OUI_APPLETALK:
|
||||
if(et == ETHERTYPE_ATALK) {
|
||||
handle_ip_packet(ip, dir);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
/* Not a lot we can do */
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void handle_tokenring_packet(unsigned char* args, const struct pcap_pkthdr* pkthdr, const unsigned char* packet)
|
||||
{
|
||||
struct token_header *trp;
|
||||
int dir = -1;
|
||||
trp = (struct token_header *)packet;
|
||||
|
||||
if(IS_SOURCE_ROUTED(trp)) {
|
||||
packet += RIF_LENGTH(trp);
|
||||
}
|
||||
packet += TOKEN_HDRLEN;
|
||||
|
||||
if(memcmp(trp->token_shost, if_hw_addr, 6) == 0 ) {
|
||||
/* packet leaving this i/f */
|
||||
dir = 1;
|
||||
}
|
||||
else if(memcmp(trp->token_dhost, if_hw_addr, 6) == 0 || memcmp("\xFF\xFF\xFF\xFF\xFF\xFF", trp->token_dhost, 6) == 0) {
|
||||
/* packet entering this i/f */
|
||||
dir = 0;
|
||||
}
|
||||
|
||||
/* Only know how to deal with LLC encapsulated packets */
|
||||
if(FRAME_TYPE(trp) == TOKEN_FC_LLC) {
|
||||
handle_llc_packet((struct llc*)packet, dir);
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef DLT_LINUX_SLL
|
||||
static void handle_cooked_packet(unsigned char *args, const struct pcap_pkthdr * thdr, const unsigned char * packet)
|
||||
{
|
||||
@@ -367,6 +424,7 @@ void packet_init() {
|
||||
resolver_initialise();
|
||||
|
||||
pd = pcap_open_live(options.interface, CAPTURE_LENGTH, options.promiscuous, 1000, errbuf);
|
||||
// DEBUG: pd = pcap_open_offline("tcpdump.out", errbuf);
|
||||
if(pd == NULL) {
|
||||
fprintf(stderr, "pcap_open_live(%s): %s\n", options.interface, errbuf);
|
||||
exit(1);
|
||||
@@ -378,6 +436,9 @@ void packet_init() {
|
||||
else if(dlt == DLT_RAW) {
|
||||
packet_handler = handle_raw_packet;
|
||||
}
|
||||
else if(dlt == DLT_IEEE802) {
|
||||
packet_handler = handle_tokenring_packet;
|
||||
}
|
||||
/*
|
||||
* SLL support not available in older libpcaps
|
||||
*/
|
||||
|
||||
132
llc.h
Normal file
132
llc.h
Normal file
@@ -0,0 +1,132 @@
|
||||
/*
|
||||
* Copyright (c) 1993, 1994, 1997
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that: (1) source code distributions
|
||||
* retain the above copyright notice and this paragraph in its entirety, (2)
|
||||
* distributions including binary code include the above copyright notice and
|
||||
* this paragraph in its entirety in the documentation or other materials
|
||||
* provided with the distribution, and (3) all advertising materials mentioning
|
||||
* features or use of this software display the following acknowledgement:
|
||||
* ``This product includes software developed by the University of California,
|
||||
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
|
||||
* the University nor the names of its contributors may be used to endorse
|
||||
* or promote products derived from this software without specific prior
|
||||
* written permission.
|
||||
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
||||
*
|
||||
* @(#) $Header$ (LBL)
|
||||
*/
|
||||
|
||||
/*
|
||||
* This stuff should come from a system header file, but there's no
|
||||
* obviously portable way to do that and it's not really going
|
||||
* to change from system to system.
|
||||
*/
|
||||
|
||||
/*
|
||||
* A somewhat abstracted view of the LLC header
|
||||
*/
|
||||
|
||||
struct llc {
|
||||
u_int8_t dsap;
|
||||
u_int8_t ssap;
|
||||
union {
|
||||
u_int8_t u_ctl;
|
||||
u_int16_t is_ctl;
|
||||
struct {
|
||||
u_int8_t snap_ui;
|
||||
u_int8_t snap_pi[5];
|
||||
} snap;
|
||||
struct {
|
||||
u_int8_t snap_ui;
|
||||
u_int8_t snap_orgcode[3];
|
||||
u_int8_t snap_ethertype[2];
|
||||
} snap_ether;
|
||||
} ctl;
|
||||
};
|
||||
|
||||
#define llcui ctl.snap.snap_ui
|
||||
#define llcpi ctl.snap.snap_pi
|
||||
#define llc_orgcode ctl.snap_ether.snap_orgcode
|
||||
#define llc_ethertype ctl.snap_ether.snap_ethertype
|
||||
#define llcis ctl.is_ctl
|
||||
#define llcu ctl.u_ctl
|
||||
|
||||
#define LLC_U_FMT 3
|
||||
#define LLC_GSAP 1
|
||||
#define LLC_S_FMT 1
|
||||
|
||||
#define LLC_U_POLL 0x10
|
||||
#define LLC_IS_POLL 0x0100
|
||||
#define LLC_XID_FI 0x81
|
||||
|
||||
#define LLC_U_CMD(u) ((u) & 0xef)
|
||||
#define LLC_UI 0x03
|
||||
#define LLC_UA 0x63
|
||||
#define LLC_DISC 0x43
|
||||
#define LLC_DM 0x0f
|
||||
#define LLC_SABME 0x6f
|
||||
#define LLC_TEST 0xe3
|
||||
#define LLC_XID 0xaf
|
||||
#define LLC_FRMR 0x87
|
||||
|
||||
#define LLC_S_CMD(is) (((is) >> 1) & 0x03)
|
||||
#define LLC_RR 0x0001
|
||||
#define LLC_RNR 0x0005
|
||||
#define LLC_REJ 0x0009
|
||||
|
||||
#define LLC_IS_NR(is) (((is) >> 9) & 0x7f)
|
||||
#define LLC_I_NS(is) (((is) >> 1) & 0x7f)
|
||||
|
||||
#ifndef LLCSAP_NULL
|
||||
#define LLCSAP_NULL 0x00
|
||||
#endif
|
||||
#ifndef LLCSAP_GLOBAL
|
||||
#define LLCSAP_GLOBAL 0xff
|
||||
#endif
|
||||
#ifndef LLCSAP_8021B_I
|
||||
#define LLCSAP_8021B_I 0x02
|
||||
#endif
|
||||
#ifndef LLCSAP_8021B_G
|
||||
#define LLCSAP_8021B_G 0x03
|
||||
#endif
|
||||
#ifndef LLCSAP_IP
|
||||
#define LLCSAP_IP 0x06
|
||||
#endif
|
||||
#ifndef LLCSAP_PROWAYNM
|
||||
#define LLCSAP_PROWAYNM 0x0e
|
||||
#endif
|
||||
#ifndef LLCSAP_8021D
|
||||
#define LLCSAP_8021D 0x42
|
||||
#endif
|
||||
#ifndef LLCSAP_RS511
|
||||
#define LLCSAP_RS511 0x4e
|
||||
#endif
|
||||
#ifndef LLCSAP_ISO8208
|
||||
#define LLCSAP_ISO8208 0x7e
|
||||
#endif
|
||||
#ifndef LLCSAP_PROWAY
|
||||
#define LLCSAP_PROWAY 0x8e
|
||||
#endif
|
||||
#ifndef LLCSAP_SNAP
|
||||
#define LLCSAP_SNAP 0xaa
|
||||
#endif
|
||||
#ifndef LLCSAP_IPX
|
||||
#define LLCSAP_IPX 0xe0
|
||||
#endif
|
||||
#ifndef LLCSAP_NETBEUI
|
||||
#define LLCSAP_NETBEUI 0xf0
|
||||
#endif
|
||||
#ifndef LLCSAP_ISONS
|
||||
#define LLCSAP_ISONS 0xfe
|
||||
#endif
|
||||
|
||||
#define OUI_ENCAP_ETHER 0x000000 /* encapsulated Ethernet */
|
||||
#define OUI_CISCO 0x00000c /* Cisco protocols */
|
||||
#define ETHERTYPE_CISCO_CDP 0x2000 /* Cisco Discovery Protocol */
|
||||
#define OUI_CISCO_90 0x0000f8 /* Cisco bridging */
|
||||
#define OUI_APPLETALK 0x080007 /* Appletalk */
|
||||
@@ -238,10 +238,7 @@ char *do_resolve(struct in_addr *addr) {
|
||||
#endif
|
||||
|
||||
void resolver_worker(void* ptr) {
|
||||
struct timespec delay;
|
||||
/* int thread_number = *(int*)ptr;*/
|
||||
delay.tv_sec = 0;
|
||||
delay.tv_nsec = 500;
|
||||
pthread_mutex_lock(&resolver_queue_mutex);
|
||||
sethostent(1);
|
||||
while(1) {
|
||||
|
||||
52
token.h
Normal file
52
token.h
Normal file
@@ -0,0 +1,52 @@
|
||||
/* @(#) $Header$ (LBL) */
|
||||
/*
|
||||
* Copyright (c) 1998, Larry Lile
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice unmodified, this list of conditions, and the following
|
||||
* disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
#define TOKEN_HDRLEN 14
|
||||
#define TOKEN_RING_MAC_LEN 6
|
||||
#define ROUTING_SEGMENT_MAX 16
|
||||
#define IS_SOURCE_ROUTED(trp) ((trp)->token_shost[0] & 0x80)
|
||||
#define FRAME_TYPE(trp) (((trp)->token_fc & 0xC0) >> 6)
|
||||
#define TOKEN_FC_LLC 1
|
||||
|
||||
#define BROADCAST(trp) ((ntohs((trp)->token_rcf) & 0xE000) >> 13)
|
||||
#define RIF_LENGTH(trp) ((ntohs((trp)->token_rcf) & 0x1f00) >> 8)
|
||||
#define DIRECTION(trp) ((ntohs((trp)->token_rcf) & 0x0080) >> 7)
|
||||
#define LARGEST_FRAME(trp) ((ntohs((trp)->token_rcf) & 0x0070) >> 4)
|
||||
#define RING_NUMBER(trp, x) ((ntohs((trp)->token_rseg[x]) & 0xfff0) >> 4)
|
||||
#define BRIDGE_NUMBER(trp, x) ((ntohs((trp)->token_rseg[x]) & 0x000f))
|
||||
#define SEGMENT_COUNT(trp) ((RIF_LENGTH(trp) - 2) / 2)
|
||||
|
||||
struct token_header {
|
||||
u_int8_t token_ac;
|
||||
u_int8_t token_fc;
|
||||
u_int8_t token_dhost[TOKEN_RING_MAC_LEN];
|
||||
u_int8_t token_shost[TOKEN_RING_MAC_LEN];
|
||||
u_int16_t token_rcf;
|
||||
u_int16_t token_rseg[ROUTING_SEGMENT_MAX];
|
||||
};
|
||||
Reference in New Issue
Block a user