Updated code
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adamdunkels
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a2befb9dd0
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528760f924
@ -28,7 +28,7 @@
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*
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* This file is part of the Contiki operating system.
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*
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* @(#)$Id: tcpdump.c,v 1.1 2006/06/17 22:41:18 adamdunkels Exp $
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* @(#)$Id: tcpdump.c,v 1.2 2006/10/09 11:53:56 adamdunkels Exp $
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*/
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#include "contiki-net.h"
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@ -39,14 +39,14 @@
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struct ip_hdr {
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/* IP header. */
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u8_t vhl,
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tos,
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len[2],
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ipid[2],
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ipoffset[2],
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ttl,
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proto;
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tos,
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len[2],
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ipid[2],
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ipoffset[2],
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ttl,
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proto;
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u16_t ipchksum;
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u8_t srcipaddr[4],
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u8_t srcipaddr[4],
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destipaddr[4];
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};
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@ -61,48 +61,48 @@
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struct tcpip_hdr {
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/* IP header. */
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u8_t vhl,
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tos,
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len[2],
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ipid[2],
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ipoffset[2],
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ttl,
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proto;
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tos,
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len[2],
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ipid[2],
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ipoffset[2],
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ttl,
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proto;
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u16_t ipchksum;
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u8_t srcipaddr[4],
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u8_t srcipaddr[4],
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destipaddr[4];
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/* TCP header. */
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u16_t srcport,
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destport;
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u8_t seqno[4],
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u8_t seqno[4],
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ackno[4],
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tcpoffset,
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flags,
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wnd[2];
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wnd[2];
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u16_t tcpchksum;
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u8_t urgp[2];
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u8_t optdata[4];
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};
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#define ICMP_ECHO_REPLY 0
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#define ICMP_ECHO 8
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#define ICMP_ECHO 8
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struct icmpip_hdr {
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/* IP header. */
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u8_t vhl,
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tos,
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len[2],
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ipid[2],
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ipoffset[2],
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ttl,
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proto;
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tos,
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len[2],
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ipid[2],
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ipoffset[2],
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ttl,
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proto;
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u16_t ipchksum;
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u8_t srcipaddr[4],
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u8_t srcipaddr[4],
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destipaddr[4];
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/* The ICMP and IP headers. */
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/* ICMP (echo) header. */
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u8_t type, icode;
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u16_t icmpchksum;
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u16_t id, seqno;
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u16_t id, seqno;
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};
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@ -110,14 +110,14 @@ struct icmpip_hdr {
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struct udpip_hdr {
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/* IP header. */
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u8_t vhl,
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tos,
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len[2],
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ipid[2],
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ipoffset[2],
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ttl,
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proto;
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tos,
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len[2],
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ipid[2],
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ipoffset[2],
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ttl,
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proto;
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u16_t ipchksum;
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u8_t srcipaddr[4],
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u8_t srcipaddr[4],
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destipaddr[4];
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/* UDP header. */
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@ -127,11 +127,11 @@ struct udpip_hdr {
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u16_t udpchksum;
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};
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#define ETHBUF ((struct eth_hdr *)&uip_buf[0])
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#define IPBUF ((struct ip_hdr *)&uip_buf[UIP_LLH_LEN])
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#define UDPBUF ((struct udpip_hdr *)&uip_buf[UIP_LLH_LEN])
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#define ICMPBUF ((struct icmpip_hdr *)&uip_buf[UIP_LLH_LEN])
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#define TCPBUF ((struct tcpip_hdr *)&uip_buf[UIP_LLH_LEN])
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#define ETHBUF ((struct eth_hdr *)&packet[0])
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#define IPBUF ((struct ip_hdr *)&packet[0])
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#define UDPBUF ((struct udpip_hdr *)&packet[0])
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#define ICMPBUF ((struct icmpip_hdr *)&packet[0])
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#define TCPBUF ((struct tcpip_hdr *)&packet[0])
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/*---------------------------------------------------------------------------*/
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@ -157,7 +157,7 @@ tcpflags(unsigned char flags, char *flagsstr)
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*flagsstr = 0;
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}
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/*---------------------------------------------------------------------------*/
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static char * CC_FASTCALL
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static char * CC_FASTCALL
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n(u16_t num, char *ptr)
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{
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u16_t d;
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@ -165,7 +165,7 @@ n(u16_t num, char *ptr)
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if(num == 0) {
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*ptr = '0';
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return ptr + 1;
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return ptr + 1;
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} else {
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f = 0;
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for(d = 10000; d >= 1; d /= 10) {
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@ -180,7 +180,7 @@ n(u16_t num, char *ptr)
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return ptr;
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}
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/*---------------------------------------------------------------------------*/
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static char * CC_FASTCALL
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static char * CC_FASTCALL
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d(char *ptr)
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{
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*ptr = '.';
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@ -195,20 +195,21 @@ s(char *str, char *ptr)
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}
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/*---------------------------------------------------------------------------*/
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int
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tcpdump_print(char *buf, u16_t buflen)
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tcpdump_format(u8_t *packet, u16_t packetlen,
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char *buf, u16_t buflen)
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{
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char flags[8];
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if(IPBUF->proto == UIP_PROTO_ICMP) {
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if(ICMPBUF->type == ICMP_ECHO) {
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return s(" ping",
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n(IPBUF->destipaddr[3], d(
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n(IPBUF->destipaddr[2], d(
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n(IPBUF->destipaddr[1], d(
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n(IPBUF->destipaddr[2], d(
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n(IPBUF->destipaddr[1], d(
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n(IPBUF->destipaddr[0],
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s(" ",
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n(IPBUF->srcipaddr[3], d(
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n(IPBUF->srcipaddr[2], d(
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n(IPBUF->srcipaddr[1], d(
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n(IPBUF->srcipaddr[3], d(
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n(IPBUF->srcipaddr[2], d(
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n(IPBUF->srcipaddr[1], d(
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n(IPBUF->srcipaddr[0],
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buf)))))))))))))))) - buf;
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@ -220,13 +221,13 @@ tcpdump_print(char *buf, u16_t buflen)
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} else if(ICMPBUF->type == ICMP_ECHO_REPLY) {
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return s(" pong",
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n(IPBUF->destipaddr[3], d(
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n(IPBUF->destipaddr[2], d(
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n(IPBUF->destipaddr[1], d(
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n(IPBUF->destipaddr[2], d(
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n(IPBUF->destipaddr[1], d(
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n(IPBUF->destipaddr[0],
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s(" ",
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n(IPBUF->srcipaddr[3], d(
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n(IPBUF->srcipaddr[2], d(
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n(IPBUF->srcipaddr[1], d(
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n(IPBUF->srcipaddr[3], d(
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n(IPBUF->srcipaddr[2], d(
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n(IPBUF->srcipaddr[1], d(
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n(IPBUF->srcipaddr[0],
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buf)))))))))))))))) - buf;
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/* return sprintf(buf, "%d.%d.%d.%d %d.%d.%d.%d pong",
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@ -237,16 +238,16 @@ tcpdump_print(char *buf, u16_t buflen)
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}
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} else if(IPBUF->proto == UIP_PROTO_UDP) {
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return s(" UDP",
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n(htons(UDPBUF->destport), d(
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n(htons(UDPBUF->destport), d(
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n(IPBUF->destipaddr[3], d(
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n(IPBUF->destipaddr[2], d(
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n(IPBUF->destipaddr[1], d(
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n(IPBUF->destipaddr[2], d(
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n(IPBUF->destipaddr[1], d(
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n(IPBUF->destipaddr[0],
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s(" ",
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n(htons(UDPBUF->srcport), d(
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n(IPBUF->srcipaddr[3], d(
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n(IPBUF->srcipaddr[2], d(
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n(IPBUF->srcipaddr[1], d(
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n(IPBUF->srcipaddr[3], d(
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n(IPBUF->srcipaddr[2], d(
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n(IPBUF->srcipaddr[1], d(
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n(IPBUF->srcipaddr[0],
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buf)))))))))))))))))))) - buf;
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/* return sprintf(buf, "%d.%d.%d.%d.%d %d.%d.%d.%d.%d UDP",
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@ -260,16 +261,16 @@ tcpdump_print(char *buf, u16_t buflen)
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tcpflags(TCPBUF->flags, flags);
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return s(flags,
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s(" ",
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n(htons(TCPBUF->destport), d(
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n(htons(TCPBUF->destport), d(
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n(IPBUF->destipaddr[3], d(
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n(IPBUF->destipaddr[2], d(
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n(IPBUF->destipaddr[1], d(
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n(IPBUF->destipaddr[2], d(
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n(IPBUF->destipaddr[1], d(
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n(IPBUF->destipaddr[0],
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s(" ",
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n(htons(TCPBUF->srcport), d(
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n(IPBUF->srcipaddr[3], d(
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n(IPBUF->srcipaddr[2], d(
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n(IPBUF->srcipaddr[1], d(
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n(IPBUF->srcipaddr[3], d(
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n(IPBUF->srcipaddr[2], d(
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n(IPBUF->srcipaddr[1], d(
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n(IPBUF->srcipaddr[0],
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buf))))))))))))))))))))) - buf;
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/* return sprintf(buf, "%d.%d.%d.%d.%d %d.%d.%d.%d.%d %s",
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@ -280,6 +281,8 @@ tcpdump_print(char *buf, u16_t buflen)
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IPBUF->destipaddr[2], IPBUF->destipaddr[3],
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htons(TCPBUF->destport),
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flags); */
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} else {
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strcpy(buf, "Unrecognized protocol");
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}
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return 0;
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@ -28,13 +28,14 @@
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*
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* This file is part of the Contiki operating system.
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*
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* @(#)$Id: tcpdump.h,v 1.1 2006/06/17 22:41:18 adamdunkels Exp $
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* @(#)$Id: tcpdump.h,v 1.2 2006/10/09 11:53:56 adamdunkels Exp $
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*/
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#ifndef __TCPDUMP_H__
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#define __TCPDUMP_H__
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#include "uip.h"
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int tcpdump_print(char *buf, u16_t buflen);
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int tcpdump_format(u8_t *packet, u16_t *len,
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char *printbuf, u16_t printbuflen);
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#endif /* __TCPDUMP_H__ */
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