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
14 typedef 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
30 static const struct tok ipnet_values[] = {
31 { IPH_AF_INET, "IPv4" },
32 { IPH_AF_INET6, "IPv6" },
33 { 0, NULL }
34 };
35
36 static void
ipnet_hdr_print(netdissect_options * ndo,const u_char * bp,u_int length)37 ipnet_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
60 static void
ipnet_print(netdissect_options * ndo,const u_char * p,u_int length,u_int caplen)61 ipnet_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 */
103 void
ipnet_if_print(netdissect_options * ndo,const struct pcap_pkthdr * h,const u_char * p)104 ipnet_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