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authorfenner <fenner@FreeBSD.org>2000-01-30 00:45:58 +0000
committerfenner <fenner@FreeBSD.org>2000-01-30 00:45:58 +0000
commit54c4a9c9f2aca2e032cbf41f5eb012e2e9628dd4 (patch)
treed25e1fd8c818bfce397a4c7e3f2c66229c814b2a /contrib/tcpdump/print-ether.c
parent0c669098d078c88cf703bade2263846b39e01d83 (diff)
downloadFreeBSD-src-54c4a9c9f2aca2e032cbf41f5eb012e2e9628dd4.zip
FreeBSD-src-54c4a9c9f2aca2e032cbf41f5eb012e2e9628dd4.tar.gz
Virgin import of tcpdump.org tcpdump v3.5
Diffstat (limited to 'contrib/tcpdump/print-ether.c')
-rw-r--r--contrib/tcpdump/print-ether.c59
1 files changed, 52 insertions, 7 deletions
diff --git a/contrib/tcpdump/print-ether.c b/contrib/tcpdump/print-ether.c
index 07a5d12..e014086 100644
--- a/contrib/tcpdump/print-ether.c
+++ b/contrib/tcpdump/print-ether.c
@@ -20,7 +20,11 @@
*/
#ifndef lint
static const char rcsid[] =
- "@(#) $Header: print-ether.c,v 1.44 97/05/26 17:18:13 leres Exp $ (LBL)";
+ "@(#) $Header: /tcpdump/master/tcpdump/print-ether.c,v 1.48 1999/11/21 09:36:51 fenner Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
#endif
#include <sys/param.h>
@@ -41,11 +45,14 @@ struct rtentry;
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <netinet/tcp.h>
-#include <netinet/tcpip.h>
#include <stdio.h>
#include <pcap.h>
+#ifdef INET6
+#include <netinet/ip6.h>
+#endif
+
#include "interface.h"
#include "addrtoname.h"
#include "ethertype.h"
@@ -72,10 +79,12 @@ ether_print(register const u_char *bp, u_int length)
length);
}
+static u_short extracted_ethertype;
+
/*
* This is the top level routine of the printer. 'p' is the points
- * to the ether header of the packet, 'tvp' is the timestamp,
- * 'length' is the length of the packet off the wire, and 'caplen'
+ * to the ether header of the packet, 'h->tv' is the timestamp,
+ * 'h->length' is the length of the packet off the wire, and 'h->caplen'
* is the number of bytes actually captured.
*/
void
@@ -85,7 +94,6 @@ ether_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
u_int length = h->len;
struct ether_header *ep;
u_short ether_type;
- extern u_short extracted_ethertype;
ts_print(&h->ts);
@@ -152,12 +160,11 @@ ether_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
* that might want to know what it is.
*/
-u_short extracted_ethertype;
-
int
ether_encap_print(u_short ethertype, const u_char *p,
u_int length, u_int caplen)
{
+ recurse:
extracted_ethertype = ethertype;
switch (ethertype) {
@@ -166,6 +173,12 @@ ether_encap_print(u_short ethertype, const u_char *p,
ip_print(p, length);
return (1);
+#ifdef INET6
+ case ETHERTYPE_IPV6:
+ ip6_print(p, length);
+ return (1);
+#endif /*INET6*/
+
case ETHERTYPE_ARP:
case ETHERTYPE_REVARP:
arp_print(p, length, caplen);
@@ -185,6 +198,38 @@ ether_encap_print(u_short ethertype, const u_char *p,
aarp_print(p, length);
return (1);
+ case ETHERTYPE_8021Q:
+ printf("802.1Q vlan#%d P%d%s",
+ ntohs(*(unsigned short*)p)&0xFFF,
+ ntohs(*(unsigned short*)p)>>13,
+ (ntohs(*(unsigned short*)p)&0x1000) ? " CFI" : "");
+ ethertype = ntohs(*(unsigned short*)(p+2));
+ p += 4;
+ length -= 4;
+ caplen -= 4;
+ if (ethertype > ETHERMTU)
+ goto recurse;
+
+ extracted_ethertype = 0;
+
+ if (llc_print(p, length, caplen, p-18, p-12) == 0) {
+ /* ether_type not known, print raw packet */
+ if (!eflag)
+ ether_print(p-18, length+4);
+ if (extracted_ethertype) {
+ printf("(LLC %s) ",
+ etherproto_string(htons(extracted_ethertype)));
+ }
+ if (!xflag && !qflag)
+ default_print(p-18, caplen+4);
+ }
+ return (1);
+
+ case ETHERTYPE_PPPOED:
+ case ETHERTYPE_PPPOES:
+ pppoe_print(p, length);
+ return (1);
+
case ETHERTYPE_LAT:
case ETHERTYPE_SCA:
case ETHERTYPE_MOPRC:
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