X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/6f93affaeb7d2b96b4f242c411ed4bd6f18fe2f1..41f87a79787f53df8a36796b7029e6c642cb1e23:/print-ether.c diff --git a/print-ether.c b/print-ether.c index 9cfe9361..87b77d3f 100644 --- a/print-ether.c +++ b/print-ether.c @@ -19,8 +19,8 @@ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #ifndef lint -static const char rcsid[] = - "@(#) $Header: /tcpdump/master/tcpdump/print-ether.c,v 1.82 2003-07-01 19:10:26 guy Exp $ (LBL)"; +static const char rcsid[] _U_ = + "@(#) $Header: /tcpdump/master/tcpdump/print-ether.c,v 1.95.2.1 2005-04-25 17:57:15 guy Exp $ (LBL)"; #endif #ifdef HAVE_CONFIG_H @@ -38,8 +38,6 @@ static const char rcsid[] = #include "ether.h" -const u_char *snapend; - const struct tok ethertype_values[] = { { ETHERTYPE_IP, "IPv4" }, { ETHERTYPE_MPLS, "MPLS unicast" }, @@ -69,7 +67,11 @@ const struct tok ethertype_values[] = { { ETHERTYPE_PPP, "PPP" }, { ETHERTYPE_PPPOED, "PPPoE D" }, { ETHERTYPE_PPPOES, "PPPoE S" }, + { ETHERTYPE_EAPOL, "EAPOL" }, + { ETHERTYPE_JUMBO, "Jumbo" }, { ETHERTYPE_LOOPBACK, "Loopback" }, + { ETHERTYPE_ISO, "OSI" }, + { ETHERTYPE_GRE_ISO, "GRE-OSI" }, { 0, NULL} }; @@ -87,8 +89,14 @@ ether_hdr_print(register const u_char *bp, u_int length) if (ntohs(ep->ether_type) <= ETHERMTU) (void)printf(", 802.3"); else - (void)printf(", ethertype %s", - tok2str(ethertype_values,"0x%04x", ntohs(ep->ether_type))); + (void)printf(", ethertype %s (0x%04x)", + tok2str(ethertype_values,"Unknown", ntohs(ep->ether_type)), + ntohs(ep->ether_type)); + } else { + if (ntohs(ep->ether_type) <= ETHERMTU) + (void)printf(", 802.3"); + else + (void)printf(", %s", tok2str(ethertype_values,"Unknown Ethertype (0x%04x)", ntohs(ep->ether_type))); } (void)printf(", length %u: ", length); @@ -139,13 +147,13 @@ ether_print(const u_char *p, u_int length, u_int caplen) if (!xflag && !qflag) default_print(p, caplen); - } + } } /* * This is the top level routine of the printer. 'p' points * to the ether header of the packet, 'h->ts' is the timestamp, - * 'h->length' is the length of the packet off the wire, and 'h->caplen' + * 'h->len' is the length of the packet off the wire, and 'h->caplen' * is the number of bytes actually captured. */ u_int @@ -178,7 +186,7 @@ ether_encap_print(u_short ether_type, const u_char *p, switch (ether_type) { case ETHERTYPE_IP: - ip_print(p, length); + ip_print(gndo, p, length); return (1); #ifdef INET6 @@ -189,7 +197,7 @@ ether_encap_print(u_short ether_type, const u_char *p, case ETHERTYPE_ARP: case ETHERTYPE_REVARP: - arp_print(p, length, caplen); + arp_print(gndo, p, length, caplen); return (1); case ETHERTYPE_DN: @@ -242,11 +250,44 @@ ether_encap_print(u_short ether_type, const u_char *p, return (1); + case ETHERTYPE_JUMBO: + ether_type = ntohs(*(u_int16_t *)(p)); + p += 2; + length -= 2; + caplen -= 2; + + if (ether_type > ETHERMTU) { + if (eflag) + printf("ethertype %s, ", + tok2str(ethertype_values,"0x%04x", ether_type)); + goto recurse; + } + + *extracted_ether_type = 0; + + if (llc_print(p, length, caplen, p - 16, p - 10, + extracted_ether_type) == 0) { + ether_hdr_print(p - 16, length + 2); + } + + if (!xflag && !qflag) + default_print(p - 16, caplen + 2); + + return (1); + + case ETHERTYPE_ISO: + isoclns_print(p+1, length-1, length-1); + return(1); + case ETHERTYPE_PPPOED: case ETHERTYPE_PPPOES: pppoe_print(p, length); return (1); + case ETHERTYPE_EAPOL: + eap_print(gndo, p, length); + return (1); + case ETHERTYPE_PPP: if (length) { printf(": "); @@ -255,7 +296,7 @@ ether_encap_print(u_short ether_type, const u_char *p, return (1); case ETHERTYPE_LOOPBACK: - return (1); + return (0); case ETHERTYPE_MPLS: case ETHERTYPE_MPLS_MULTI: @@ -271,3 +312,12 @@ ether_encap_print(u_short ether_type, const u_char *p, return (0); } } + + +/* + * Local Variables: + * c-style: whitesmith + * c-basic-offset: 8 + * End: + */ +