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