/*
- * Copyright (c) 2013
+ * Copyright (c) 2013 The TCPDUMP project
*
* 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.
+ * modification, are permitted provided that: (1) source code
+ * distributions retain the above copyright notice and this paragraph
+ * in its entirety, and (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.
+ * 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
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 const struct tok msg_type_values[] = {
+ { 0, "CAM" },
+ { 1, "DENM" },
+ { 101, "TPEGM" },
+ { 102, "TSPDM" },
+ { 103, "VPM" },
+ { 104, "SRM" },
+ { 105, "SLAM" },
+ { 106, "ecoCAM" },
+ { 107, "ITM" },
+ { 150, "SA" },
+ { 0, NULL }
+};
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";
+ int version;
+ int msg_type;
+ const char *msg_type_str;
- 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;
+ if (length <= 2) {
+ return;
}
+
+ /* Assuming ItsDpuHeader */
+ version = bp[0];
+ msg_type = bp[1];
+ msg_type_str = tok2str(msg_type_values, "unknown (%u)", msg_type);
+
printf("; ItsPduHeader v:%d t:%d-%s", version, msg_type, msg_type_str);
}
static void
-print_btp(const u_char *bp, u_int length)
+print_btp(const u_char *bp)
{
u_int16_t dest = EXTRACT_16BITS(bp+0);
u_int16_t src = EXTRACT_16BITS(bp+2);
}
static void
-print_long_pos_vector(const char *type, const u_char *bp, u_int length)
+print_long_pos_vector(const u_char *bp)
{
int i;
u_int32_t lat, lon;
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));
+ printf("GeoNet src:%s; ", etheraddr_string(eth+6));
if (length >= 36) {
- // Process Common Header
+ /* Process Common Header */
int version = bp[0] >> 4;
int next_hdr = bp[0] & 0x0f;
int hdr_type = bp[1] >> 4;
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);
+ print_long_pos_vector(bp + 8);
- // Skip Common Header
+ /* Skip Common Header */
length -= 36;
bp += 36;
- // Process Extended Headers
+ /* Process Extended Headers */
switch (hdr_type) {
case 0: /* Any */
hdr_size = 0;
break;
}
- // Skip Extended headers
+ /* Skip Extended headers */
if (hdr_size >= 0) {
length -= hdr_size;
bp += hdr_size;
break;
case 1:
case 2: /* BTP A/B */
- print_btp(bp, length);
+ print_btp(bp);
length -= 4;
bp += 4;
print_btp_body(bp, length);
printf("Malformed (small) ");
}
- // Print user data part
+ /* Print user data part */
if (ndo->ndo_vflag)
default_print(bp, length);
}
projects / tcpdump / blobdiff