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 #include "extract.h" 11 12 static const char tstr[] = "[|ipnet]"; 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 inline void 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_TCHECK(*hdr); 43 ND_PRINT((ndo, "%d > %d", EXTRACT_32BITS(hdr->iph_zsrc), 44 EXTRACT_32BITS(hdr->iph_zdst))); 45 46 if (!ndo->ndo_qflag) { 47 ND_PRINT((ndo,", family %s (%d)", 48 tok2str(ipnet_values, "Unknown", 49 EXTRACT_8BITS(&hdr->iph_family)), 50 EXTRACT_8BITS(&hdr->iph_family))); 51 } else { 52 ND_PRINT((ndo,", %s", 53 tok2str(ipnet_values, 54 "Unknown Ethertype (0x%04x)", 55 EXTRACT_8BITS(&hdr->iph_family)))); 56 } 57 58 ND_PRINT((ndo, ", length %u: ", length)); 59 return; 60 trunc: 61 ND_PRINT((ndo, " %s", tstr)); 62 } 63 64 static void 65 ipnet_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen) 66 { 67 const ipnet_hdr_t *hdr; 68 69 if (caplen < sizeof(ipnet_hdr_t)) 70 goto trunc; 71 72 if (ndo->ndo_eflag) 73 ipnet_hdr_print(ndo, p, length); 74 75 length -= sizeof(ipnet_hdr_t); 76 caplen -= sizeof(ipnet_hdr_t); 77 hdr = (const ipnet_hdr_t *)p; 78 p += sizeof(ipnet_hdr_t); 79 80 ND_TCHECK2(hdr->iph_family, 1); 81 switch (EXTRACT_8BITS(&hdr->iph_family)) { 82 83 case IPH_AF_INET: 84 ip_print(ndo, p, length); 85 break; 86 87 case IPH_AF_INET6: 88 ip6_print(ndo, p, length); 89 break; 90 91 default: 92 if (!ndo->ndo_eflag) 93 ipnet_hdr_print(ndo, (const u_char *)hdr, 94 length + sizeof(ipnet_hdr_t)); 95 96 if (!ndo->ndo_suppress_default_print) 97 ND_DEFAULTPRINT(p, caplen); 98 break; 99 } 100 return; 101 trunc: 102 ND_PRINT((ndo, " %s", tstr)); 103 } 104 105 /* 106 * This is the top level routine of the printer. 'p' points 107 * to the ether header of the packet, 'h->ts' is the timestamp, 108 * 'h->len' is the length of the packet off the wire, and 'h->caplen' 109 * is the number of bytes actually captured. 110 */ 111 u_int 112 ipnet_if_print(netdissect_options *ndo, 113 const struct pcap_pkthdr *h, const u_char *p) 114 { 115 ipnet_print(ndo, p, h->len, h->caplen); 116 117 return (sizeof(ipnet_hdr_t)); 118 } 119 120 /* 121 * Local Variables: 122 * c-style: whitesmith 123 * c-basic-offset: 8 124 * End: 125 */ 126 127 #endif /* DLT_IPNET */ 128