1/* \summary: Solaris DLT_IPNET printer */
2
3#ifdef HAVE_CONFIG_H
4#include <config.h>
5#endif
6
7#include "netdissect-stdinc.h"
8
9#define ND_LONGJMP_FROM_TCHECK
10#include "netdissect.h"
11#include "extract.h"
12
13
14typedef struct ipnet_hdr {
15	nd_uint8_t	iph_version;
16	nd_uint8_t	iph_family;
17	nd_uint16_t	iph_htype;
18	nd_uint32_t	iph_pktlen;
19	nd_uint32_t	iph_ifindex;
20	nd_uint32_t	iph_grifindex;
21	nd_uint32_t	iph_zsrc;
22	nd_uint32_t	iph_zdst;
23} ipnet_hdr_t;
24
25#define	IPH_AF_INET	2		/* Matches Solaris's AF_INET */
26#define	IPH_AF_INET6	26		/* Matches Solaris's AF_INET6 */
27
28#ifdef DLT_IPNET
29
30static const struct tok ipnet_values[] = {
31	{ IPH_AF_INET,		"IPv4" },
32	{ IPH_AF_INET6,		"IPv6" },
33	{ 0,			NULL }
34};
35
36static void
37ipnet_hdr_print(netdissect_options *ndo, const u_char *bp, u_int length)
38{
39	const ipnet_hdr_t *hdr;
40	hdr = (const ipnet_hdr_t *)bp;
41
42	ND_PRINT("%u > %u", GET_BE_U_4(hdr->iph_zsrc),
43		  GET_BE_U_4(hdr->iph_zdst));
44
45	if (!ndo->ndo_qflag) {
46		ND_PRINT(", family %s (%u)",
47                          tok2str(ipnet_values, "Unknown",
48                                  GET_U_1(hdr->iph_family)),
49                          GET_U_1(hdr->iph_family));
50        } else {
51		ND_PRINT(", %s",
52                          tok2str(ipnet_values,
53                                  "Unknown Ethertype (0x%04x)",
54				  GET_U_1(hdr->iph_family)));
55        }
56
57	ND_PRINT(", length %u: ", length);
58}
59
60static void
61ipnet_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen)
62{
63	const ipnet_hdr_t *hdr;
64
65	ND_TCHECK_LEN(p, sizeof(ipnet_hdr_t));
66	ndo->ndo_ll_hdr_len += sizeof(ipnet_hdr_t);
67
68	if (ndo->ndo_eflag)
69		ipnet_hdr_print(ndo, p, length);
70
71	length -= sizeof(ipnet_hdr_t);
72	caplen -= sizeof(ipnet_hdr_t);
73	hdr = (const ipnet_hdr_t *)p;
74	p += sizeof(ipnet_hdr_t);
75
76	switch (GET_U_1(hdr->iph_family)) {
77
78	case IPH_AF_INET:
79	        ip_print(ndo, p, length);
80		break;
81
82	case IPH_AF_INET6:
83		ip6_print(ndo, p, length);
84		break;
85
86	default:
87		if (!ndo->ndo_eflag)
88			ipnet_hdr_print(ndo, (const u_char *)hdr,
89					length + sizeof(ipnet_hdr_t));
90
91		if (!ndo->ndo_suppress_default_print)
92			ND_DEFAULTPRINT(p, caplen);
93		break;
94	}
95}
96
97/*
98 * This is the top level routine of the printer.  'p' points
99 * to the ether header of the packet, 'h->ts' is the timestamp,
100 * 'h->len' is the length of the packet off the wire, and 'h->caplen'
101 * is the number of bytes actually captured.
102 */
103void
104ipnet_if_print(netdissect_options *ndo,
105               const struct pcap_pkthdr *h, const u_char *p)
106{
107	ndo->ndo_protocol = "ipnet";
108	ipnet_print(ndo, p, h->len, h->caplen);
109}
110#endif /* DLT_IPNET */
111