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3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22 /* \summary: IPv4/IPv6 payload printer */
28 #include "netdissect-stdinc.h"
30 #include "netdissect.h"
31 #include "addrtoname.h"
38 ip_demux_print(netdissect_options *ndo,
40 u_int length, u_int ver, int fragmented, u_int ttl_hl,
41 uint8_t nh, const u_char *iph)
52 if (!ND_TTEST_1(bp)) {
53 ndo->ndo_protocol = "ah";
58 advance = ah_print(ndo, bp);
67 esp_print(ndo, bp, length, iph, ver, fragmented, ttl_hl);
69 * Either this has decrypted the payload and
70 * printed it, in which case there's nothing more
71 * to do, or it hasn't, in which case there's
79 ipcomp_print(ndo, bp);
81 * Either this has decompressed the payload and
82 * printed it, in which case there's nothing more
83 * to do, or it hasn't, in which case there's
90 sctp_print(ndo, bp, iph, length);
94 dccp_print(ndo, bp, iph, length);
98 tcp_print(ndo, bp, length, iph, fragmented);
102 udp_print(ndo, bp, length, iph, fragmented, ttl_hl);
107 icmp_print(ndo, bp, length, iph, fragmented);
109 ND_PRINT("[%s requires IPv4]",
110 tok2str(ipproto_values,"unknown",nh));
111 nd_print_invalid(ndo);
117 icmp6_print(ndo, bp, length, iph, fragmented);
119 ND_PRINT("[%s requires IPv6]",
120 tok2str(ipproto_values,"unknown",nh));
121 nd_print_invalid(ndo);
127 * XXX - the current IANA protocol number assignments
128 * page lists 9 as "any private interior gateway
129 * (used by Cisco for their IGRP)" and 88 as
130 * "EIGRP" from Cisco.
132 * Recent BSD <netinet/in.h> headers define
133 * IP_PROTO_PIGP as 9 and IP_PROTO_IGRP as 88.
134 * We define IP_PROTO_PIGP as 9 and
135 * IP_PROTO_EIGRP as 88; those names better
136 * match was the current protocol number
139 igrp_print(ndo, bp, length);
143 eigrp_print(ndo, bp, length);
147 ND_PRINT(" nd %u", length);
151 egp_print(ndo, bp, length);
156 ospf6_print(ndo, bp, length);
158 ospf_print(ndo, bp, length, iph);
163 igmp_print(ndo, bp, length);
165 ND_PRINT("[%s requires IPv4]",
166 tok2str(ipproto_values,"unknown",nh));
167 nd_print_invalid(ndo);
172 /* ipv4-in-ip encapsulation */
173 ip_print(ndo, bp, length);
177 /* ip6-in-ip encapsulation */
178 ip6_print(ndo, bp, length);
182 rsvp_print(ndo, bp, length);
186 gre_print(ndo, bp, length);
190 mobile_print(ndo, bp, length);
194 pim_print(ndo, bp, length, iph);
198 if (ndo->ndo_packettype == PT_CARP) {
199 carp_print(ndo, bp, length, ttl_hl);
201 vrrp_print(ndo, bp, length, iph, ttl_hl);
206 pgm_print(ndo, bp, length, iph);
209 case IPPROTO_ETHERNET:
211 ether_print(ndo, bp, length, ND_BYTES_AVAILABLE_AFTER(bp), NULL, NULL);
213 ND_PRINT("[%s requires IPv6]",
214 tok2str(ipproto_values,"unknown",nh));
215 nd_print_invalid(ndo);
220 ND_PRINT("no next header");
224 if (ndo->ndo_nflag==0 && (p_name = netdb_protoname(nh)) != NULL)
225 ND_PRINT(" %s", p_name);
227 ND_PRINT(" ip-proto-%u", nh);
228 ND_PRINT(" %u", length);