1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate * Copyright (c) 1991-2001 by Sun Microsystems, Inc.
24*7c478bd9Sstevel@tonic-gate * All rights reserved.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*7c478bd9Sstevel@tonic-gate
29*7c478bd9Sstevel@tonic-gate #include <stdio.h>
30*7c478bd9Sstevel@tonic-gate #include <sys/types.h>
31*7c478bd9Sstevel@tonic-gate #include <sys/socket.h>
32*7c478bd9Sstevel@tonic-gate #include <net/if.h>
33*7c478bd9Sstevel@tonic-gate #include <net/if_arp.h>
34*7c478bd9Sstevel@tonic-gate #include <netinet/in_systm.h>
35*7c478bd9Sstevel@tonic-gate #include <netinet/in.h>
36*7c478bd9Sstevel@tonic-gate #include <netinet/if_ether.h>
37*7c478bd9Sstevel@tonic-gate
38*7c478bd9Sstevel@tonic-gate #include <at.h>
39*7c478bd9Sstevel@tonic-gate #include <snoop.h>
40*7c478bd9Sstevel@tonic-gate
41*7c478bd9Sstevel@tonic-gate static char *printat(uint8_t *);
42*7c478bd9Sstevel@tonic-gate
43*7c478bd9Sstevel@tonic-gate static char *aarp_opname[] = {
44*7c478bd9Sstevel@tonic-gate "",
45*7c478bd9Sstevel@tonic-gate "AARP Request",
46*7c478bd9Sstevel@tonic-gate "AARP Reply",
47*7c478bd9Sstevel@tonic-gate "AARP Probe",
48*7c478bd9Sstevel@tonic-gate };
49*7c478bd9Sstevel@tonic-gate
50*7c478bd9Sstevel@tonic-gate void
interpret_aarp(int flags,char * data,int alen)51*7c478bd9Sstevel@tonic-gate interpret_aarp(int flags, char *data, int alen)
52*7c478bd9Sstevel@tonic-gate {
53*7c478bd9Sstevel@tonic-gate /* LINTED */
54*7c478bd9Sstevel@tonic-gate struct ether_arp *ap = (struct ether_arp *)data;
55*7c478bd9Sstevel@tonic-gate
56*7c478bd9Sstevel@tonic-gate extern char *dst_name;
57*7c478bd9Sstevel@tonic-gate
58*7c478bd9Sstevel@tonic-gate if (flags & F_SUM) {
59*7c478bd9Sstevel@tonic-gate if (alen < sizeof (struct ether_arp)) {
60*7c478bd9Sstevel@tonic-gate (void) snprintf(get_sum_line(), MAXLINE,
61*7c478bd9Sstevel@tonic-gate "AARP (short packet)");
62*7c478bd9Sstevel@tonic-gate return;
63*7c478bd9Sstevel@tonic-gate }
64*7c478bd9Sstevel@tonic-gate
65*7c478bd9Sstevel@tonic-gate switch (ntohs(ap->arp_op)) {
66*7c478bd9Sstevel@tonic-gate case AARP_REQ:
67*7c478bd9Sstevel@tonic-gate (void) snprintf(get_sum_line(), MAXLINE,
68*7c478bd9Sstevel@tonic-gate "AARP C Who is %s ?",
69*7c478bd9Sstevel@tonic-gate printat(ap->arp_tpa));
70*7c478bd9Sstevel@tonic-gate break;
71*7c478bd9Sstevel@tonic-gate case AARP_RESP:
72*7c478bd9Sstevel@tonic-gate (void) snprintf(get_sum_line(), MAXLINE,
73*7c478bd9Sstevel@tonic-gate "AARP R %s is %s",
74*7c478bd9Sstevel@tonic-gate printat(ap->arp_spa),
75*7c478bd9Sstevel@tonic-gate printether((struct ether_addr *)&ap->arp_sha));
76*7c478bd9Sstevel@tonic-gate dst_name = printat(ap->arp_tpa);
77*7c478bd9Sstevel@tonic-gate break;
78*7c478bd9Sstevel@tonic-gate case AARP_PROBE:
79*7c478bd9Sstevel@tonic-gate (void) snprintf(get_sum_line(), MAXLINE,
80*7c478bd9Sstevel@tonic-gate "AARP Probe %s ?",
81*7c478bd9Sstevel@tonic-gate printat(ap->arp_tpa));
82*7c478bd9Sstevel@tonic-gate break;
83*7c478bd9Sstevel@tonic-gate }
84*7c478bd9Sstevel@tonic-gate }
85*7c478bd9Sstevel@tonic-gate
86*7c478bd9Sstevel@tonic-gate if (flags & F_DTAIL) {
87*7c478bd9Sstevel@tonic-gate show_header("AARP: ", "AARP Frame", alen);
88*7c478bd9Sstevel@tonic-gate show_space();
89*7c478bd9Sstevel@tonic-gate
90*7c478bd9Sstevel@tonic-gate if (alen < sizeof (struct ether_arp)) {
91*7c478bd9Sstevel@tonic-gate (void) snprintf(get_line(0, 0), get_line_remain(),
92*7c478bd9Sstevel@tonic-gate "AARP (short packet)");
93*7c478bd9Sstevel@tonic-gate return;
94*7c478bd9Sstevel@tonic-gate }
95*7c478bd9Sstevel@tonic-gate
96*7c478bd9Sstevel@tonic-gate (void) snprintf(get_line(0, 0), get_line_remain(),
97*7c478bd9Sstevel@tonic-gate "Hardware type = %d",
98*7c478bd9Sstevel@tonic-gate ntohs(ap->arp_hrd));
99*7c478bd9Sstevel@tonic-gate (void) snprintf(get_line(0, 0), get_line_remain(),
100*7c478bd9Sstevel@tonic-gate "Protocol type = %04X (%s)",
101*7c478bd9Sstevel@tonic-gate ntohs(ap->arp_pro),
102*7c478bd9Sstevel@tonic-gate print_ethertype(ntohs(ap->arp_pro)));
103*7c478bd9Sstevel@tonic-gate (void) snprintf(get_line(0, 0), get_line_remain(),
104*7c478bd9Sstevel@tonic-gate "Length of hardware address = %d bytes",
105*7c478bd9Sstevel@tonic-gate ap->arp_hln);
106*7c478bd9Sstevel@tonic-gate (void) snprintf(get_line(0, 0), get_line_remain(),
107*7c478bd9Sstevel@tonic-gate "Length of protocol address = %d bytes",
108*7c478bd9Sstevel@tonic-gate ap->arp_pln);
109*7c478bd9Sstevel@tonic-gate (void) snprintf(get_line(0, 0), get_line_remain(),
110*7c478bd9Sstevel@tonic-gate "Opcode %d (%s)",
111*7c478bd9Sstevel@tonic-gate ntohs(ap->arp_op),
112*7c478bd9Sstevel@tonic-gate aarp_opname[ntohs(ap->arp_op)]);
113*7c478bd9Sstevel@tonic-gate
114*7c478bd9Sstevel@tonic-gate if (ntohs(ap->arp_hrd) == ARPHRD_ETHER &&
115*7c478bd9Sstevel@tonic-gate ntohs(ap->arp_pro) == ETHERTYPE_AT) {
116*7c478bd9Sstevel@tonic-gate (void) snprintf(get_line(0, 0), get_line_remain(),
117*7c478bd9Sstevel@tonic-gate "Sender's hardware address = %s",
118*7c478bd9Sstevel@tonic-gate printether((struct ether_addr *)&ap->arp_sha));
119*7c478bd9Sstevel@tonic-gate (void) snprintf(get_line(0, 0), get_line_remain(),
120*7c478bd9Sstevel@tonic-gate "Sender's protocol address = %s",
121*7c478bd9Sstevel@tonic-gate printat(ap->arp_spa));
122*7c478bd9Sstevel@tonic-gate (void) snprintf(get_line(0, 0), get_line_remain(),
123*7c478bd9Sstevel@tonic-gate "Target hardware address = %s",
124*7c478bd9Sstevel@tonic-gate (ntohs(ap->arp_op) == AARP_REQ ||
125*7c478bd9Sstevel@tonic-gate ntohs(ap->arp_op) == AARP_PROBE) ? "?" :
126*7c478bd9Sstevel@tonic-gate printether((struct ether_addr *)&ap->arp_tha));
127*7c478bd9Sstevel@tonic-gate (void) snprintf(get_line(0, 0), get_line_remain(),
128*7c478bd9Sstevel@tonic-gate "Target protocol address = %s",
129*7c478bd9Sstevel@tonic-gate ntohs(ap->arp_op) == REVARP_REQUEST ? "?" :
130*7c478bd9Sstevel@tonic-gate printat(ap->arp_tpa));
131*7c478bd9Sstevel@tonic-gate }
132*7c478bd9Sstevel@tonic-gate show_trailer();
133*7c478bd9Sstevel@tonic-gate }
134*7c478bd9Sstevel@tonic-gate }
135*7c478bd9Sstevel@tonic-gate
136*7c478bd9Sstevel@tonic-gate static char *
printat(uint8_t * p)137*7c478bd9Sstevel@tonic-gate printat(uint8_t *p)
138*7c478bd9Sstevel@tonic-gate {
139*7c478bd9Sstevel@tonic-gate static char buf[16];
140*7c478bd9Sstevel@tonic-gate
141*7c478bd9Sstevel@tonic-gate (void) snprintf(buf, sizeof (buf), "%d.%d", get_short(&p[1]), p[3]);
142*7c478bd9Sstevel@tonic-gate return (buf);
143*7c478bd9Sstevel@tonic-gate }
144