--- /dev/null
+/*
+ * Copyright (c) 2013
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by Paolo Abeni.''
+ * The name of author may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <pcap.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "interface.h"
+#include "extract.h"
+#include "addrtoname.h"
+
+
+static const char *
+hex48_to_string(const u_char *bp)
+{
+ int i;
+ static char sz[6*3+2];
+ memset(sz, 0, sizeof(sz));
+ for (i=0; i<6; i++) {
+ if (i) strcat(sz,":");
+ sprintf(sz+strlen(sz), "%02x", bp[i]);
+ }
+ return sz;
+}
+
+/*
+ * This is the top level routine of the printer. 'p' points
+ * to the calm header of the packet.
+ */
+void
+calm_fast_print(netdissect_options *ndo, const u_char *eth, const u_char *bp, u_int length)
+{
+ printf("CALM FAST src:%s; ", hex48_to_string(eth+6));
+
+ length -= 0;
+ bp += 0;
+
+ if (ndo->ndo_vflag)
+ default_print(bp, length);
+}
+
+
+/*
+ * Local Variables:
+ * c-style: whitesmith
+ * c-basic-offset: 8
+ * End:
+ */
--- /dev/null
+/*
+ * Copyright (c) 2013
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by Paolo Abeni.''
+ * The name of author may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <pcap.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "interface.h"
+#include "extract.h"
+#include "addrtoname.h"
+
+
+/*
+ ETSI TS 102 636-5-1 V1.1.1 (2011-02)
+ Intelligent Transport Systems (ITS); Vehicular Communications; GeoNetworking;
+ Part 5: Transport Protocols; Sub-part 1: Basic Transport Protocol
+
+ ETSI TS 102 636-4-1 V1.1.1 (2011-06)
+ Intelligent Transport Systems (ITS); Vehicular communications; GeoNetworking;
+ Part 4: Geographical addressing and forwarding for point-to-point and point-to-multipoint communications;
+ Sub-part 1: Media-Independent Functionality
+*/
+
+static const char *
+hex48_to_string(const u_char *bp)
+{
+ int i;
+ static char sz[6*3+2];
+ memset(sz, 0, sizeof(sz));
+ for (i=0; i<6; i++) {
+ if (i) strcat(sz,":");
+ sprintf(sz+strlen(sz), "%02x", bp[i]);
+ }
+ return sz;
+}
+
+static void
+print_btp_body(const u_char *bp, u_int length)
+{
+ // Assuming ItsDpuHeader
+ int version = bp[0];
+ int msg_type = bp[1];
+ const char *msg_type_str = "Unknown";
+
+ switch (msg_type) {
+ case 0: msg_type_str = "CAM"; break;
+ case 1: msg_type_str = "DENM"; break;
+ case 101: msg_type_str = "TPEGM"; break;
+ case 102: msg_type_str = "TSPDM"; break;
+ case 103: msg_type_str = "VPM"; break;
+ case 104: msg_type_str = "SRM"; break;
+ case 105: msg_type_str = "SLAM"; break;
+ case 106: msg_type_str = "ecoCAM"; break;
+ case 107: msg_type_str = "ITM"; break;
+ case 150: msg_type_str = "SA"; break;
+ }
+ printf("; ItsPduHeader v:%d t:%d-%s", version, msg_type, msg_type_str);
+}
+
+static void
+print_btp(const u_char *bp, u_int length)
+{
+ u_int16_t dest = EXTRACT_16BITS(bp+0);
+ u_int16_t src = EXTRACT_16BITS(bp+2);
+ printf("; BTP Dst:%u Src:%u", dest, src);
+}
+
+static void
+print_long_pos_vector(const char *type, const u_char *bp, u_int length)
+{
+ int i;
+ u_int32_t lat, lon;
+
+ printf("GN_ADDR:");
+ for (i=0; i<8; i++) {
+ if (i) printf(":");
+ printf("%02x", bp[i]);
+ }
+ printf(" ");
+
+ lat = EXTRACT_32BITS(bp+12);
+ printf("lat:%d ", lat);
+ lon = EXTRACT_32BITS(bp+16);
+ printf("lon:%d", lon);
+}
+
+
+/*
+ * This is the top level routine of the printer. 'p' points
+ * to the geonet header of the packet.
+ */
+void
+geonet_print(netdissect_options *ndo, const u_char *eth, const u_char *bp, u_int length)
+{
+ printf("GeoNet src:%s; ", hex48_to_string(eth+6));
+
+ if (length >= 36) {
+ // Process Common Header
+ int version = bp[0] >> 4;
+ int next_hdr = bp[0] & 0x0f;
+ int hdr_type = bp[1] >> 4;
+ int hdr_subtype = bp[1] & 0x0f;
+ u_int16_t payload_length = EXTRACT_16BITS(bp+4);
+ int hop_limit = bp[7];
+ const char *next_hdr_txt = "Unknown";
+ const char *hdr_type_txt = "Unknown";
+ int hdr_size = -1;
+
+ switch (next_hdr) {
+ case 0: next_hdr_txt = "Any"; break;
+ case 1: next_hdr_txt = "BTP-A"; break;
+ case 2: next_hdr_txt = "BTP-B"; break;
+ case 3: next_hdr_txt = "IPv6"; break;
+ }
+
+ switch (hdr_type) {
+ case 0: hdr_type_txt = "Any"; break;
+ case 1: hdr_type_txt = "Beacon"; break;
+ case 2: hdr_type_txt = "GeoUnicast"; break;
+ case 3: switch (hdr_subtype) {
+ case 0: hdr_type_txt = "GeoAnycastCircle"; break;
+ case 1: hdr_type_txt = "GeoAnycastRect"; break;
+ case 2: hdr_type_txt = "GeoAnycastElipse"; break;
+ }
+ break;
+ case 4: switch (hdr_subtype) {
+ case 0: hdr_type_txt = "GeoBroadcastCircle"; break;
+ case 1: hdr_type_txt = "GeoBroadcastRect"; break;
+ case 2: hdr_type_txt = "GeoBroadcastElipse"; break;
+ }
+ break;
+ case 5: switch (hdr_subtype) {
+ case 0: hdr_type_txt = "TopoScopeBcast-SH"; break;
+ case 1: hdr_type_txt = "TopoScopeBcast-MH"; break;
+ }
+ break;
+ case 6: switch (hdr_subtype) {
+ case 0: hdr_type_txt = "LocService-Request"; break;
+ case 1: hdr_type_txt = "LocService-Reply"; break;
+ }
+ break;
+ }
+
+ printf("v:%d ", version);
+ printf("NH:%d-%s ", next_hdr, next_hdr_txt);
+ printf("HT:%d-%d-%s ", hdr_type, hdr_subtype, hdr_type_txt);
+ printf("HopLim:%d ", hop_limit);
+ printf("Payload:%d ", payload_length);
+ print_long_pos_vector("Sender", bp + 8, 36-8);
+
+ // Skip Common Header
+ length -= 36;
+ bp += 36;
+
+ // Process Extended Headers
+ switch (hdr_type) {
+ case 0: /* Any */
+ hdr_size = 0;
+ break;
+ case 1: /* Beacon */
+ hdr_size = 0;
+ break;
+ case 2: /* GeoUnicast */
+ break;
+ case 3: switch (hdr_subtype) {
+ case 0: /* GeoAnycastCircle */
+ break;
+ case 1: /* GeoAnycastRect */
+ break;
+ case 2: /* GeoAnycastElipse */
+ break;
+ }
+ break;
+ case 4: switch (hdr_subtype) {
+ case 0: /* GeoBroadcastCircle */
+ break;
+ case 1: /* GeoBroadcastRect */
+ break;
+ case 2: /* GeoBroadcastElipse */
+ break;
+ }
+ break;
+ case 5: switch (hdr_subtype) {
+ case 0: /* TopoScopeBcast-SH */
+ hdr_size = 0;
+ break;
+ case 1: /* TopoScopeBcast-MH */
+ hdr_size = 68 - 36;
+ break;
+ }
+ break;
+ case 6: switch (hdr_subtype) {
+ case 0: /* LocService-Request */
+ break;
+ case 1: /* LocService-Reply */
+ break;
+ }
+ break;
+ }
+
+ // Skip Extended headers
+ if (hdr_size >= 0) {
+ length -= hdr_size;
+ bp += hdr_size;
+ switch (next_hdr) {
+ case 0: /* Any */
+ break;
+ case 1:
+ case 2: /* BTP A/B */
+ print_btp(bp, length);
+ length -= 4;
+ bp += 4;
+ print_btp_body(bp, length);
+ break;
+ case 3: /* IPv6 */
+ break;
+ }
+ }
+ } else {
+ printf("Malformed (small) ");
+ }
+
+ // Print user data part
+ if (ndo->ndo_vflag)
+ default_print(bp, length);
+}
+
+
+/*
+ * Local Variables:
+ * c-style: whitesmith
+ * c-basic-offset: 8
+ * End:
+ */
projects / tcpdump / commitdiff
