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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 #include "netdissect.h"
10 
11 typedef struct ipnet_hdr {
12 	uint8_t		iph_version;
13 	uint8_t		iph_family;
14 	uint16_t	iph_htype;
15 	uint32_t	iph_pktlen;
16 	uint32_t	iph_ifindex;
17 	uint32_t	iph_grifindex;
18 	uint32_t	iph_zsrc;
19 	uint32_t	iph_zdst;
20 } ipnet_hdr_t;
21 
22 #define	IPH_AF_INET	2		/* Matches Solaris's AF_INET */
23 #define	IPH_AF_INET6	26		/* Matches Solaris's AF_INET6 */
24 
25 #ifdef DLT_IPNET
26 
27 static const struct tok ipnet_values[] = {
28 	{ IPH_AF_INET,		"IPv4" },
29 	{ IPH_AF_INET6,		"IPv6" },
30 	{ 0,			NULL }
31 };
32 
33 static inline void
ipnet_hdr_print(netdissect_options * ndo,const u_char * bp,u_int length)34 ipnet_hdr_print(netdissect_options *ndo, const u_char *bp, u_int length)
35 {
36 	const ipnet_hdr_t *hdr;
37 	hdr = (const ipnet_hdr_t *)bp;
38 
39 	ND_PRINT((ndo, "%d > %d", hdr->iph_zsrc, hdr->iph_zdst));
40 
41 	if (!ndo->ndo_qflag) {
42 		ND_PRINT((ndo,", family %s (%d)",
43                           tok2str(ipnet_values, "Unknown",
44                                   hdr->iph_family),
45                           hdr->iph_family));
46         } else {
47 		ND_PRINT((ndo,", %s",
48                           tok2str(ipnet_values,
49                                   "Unknown Ethertype (0x%04x)",
50                                   hdr->iph_family)));
51         }
52 
53 	ND_PRINT((ndo, ", length %u: ", length));
54 }
55 
56 static void
ipnet_print(netdissect_options * ndo,const u_char * p,u_int length,u_int caplen)57 ipnet_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen)
58 {
59 	const ipnet_hdr_t *hdr;
60 
61 	if (caplen < sizeof(ipnet_hdr_t)) {
62 		ND_PRINT((ndo, "[|ipnet]"));
63 		return;
64 	}
65 
66 	if (ndo->ndo_eflag)
67 		ipnet_hdr_print(ndo, p, length);
68 
69 	length -= sizeof(ipnet_hdr_t);
70 	caplen -= sizeof(ipnet_hdr_t);
71 	hdr = (const ipnet_hdr_t *)p;
72 	p += sizeof(ipnet_hdr_t);
73 
74 	switch (hdr->iph_family) {
75 
76 	case IPH_AF_INET:
77 	        ip_print(ndo, p, length);
78 		break;
79 
80 	case IPH_AF_INET6:
81 		ip6_print(ndo, p, length);
82 		break;
83 
84 	default:
85 		if (!ndo->ndo_eflag)
86 			ipnet_hdr_print(ndo, (const u_char *)hdr,
87 					length + sizeof(ipnet_hdr_t));
88 
89 		if (!ndo->ndo_suppress_default_print)
90 			ND_DEFAULTPRINT(p, caplen);
91 		break;
92 	}
93 }
94 
95 /*
96  * This is the top level routine of the printer.  'p' points
97  * to the ether header of the packet, 'h->ts' is the timestamp,
98  * 'h->len' is the length of the packet off the wire, and 'h->caplen'
99  * is the number of bytes actually captured.
100  */
101 u_int
ipnet_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)102 ipnet_if_print(netdissect_options *ndo,
103                const struct pcap_pkthdr *h, const u_char *p)
104 {
105 	ipnet_print(ndo, p, h->len, h->caplen);
106 
107 	return (sizeof(ipnet_hdr_t));
108 }
109 
110 /*
111  * Local Variables:
112  * c-style: whitesmith
113  * c-basic-offset: 8
114  * End:
115  */
116 
117 #endif /* DLT_IPNET */
118