--- /dev/null
+/*
+ * 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, 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.
+ *
+ * Original code by Francesco Fondelli (francesco dot fondelli, gmail dot com)
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "netdissect-stdinc.h"
+#include "netdissect.h"
+#include "extract.h"
+#include "udp.h"
+
+/*
+ * SOMEIP Header (R19-11)
+ *
+ * 0 1 2 3
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Message ID (Service ID/Method ID) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Length |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Request ID (Client ID/Session ID) |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Protocol Ver | Interface Ver | Message Type | Return Code |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | Payload |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+struct tok message_type_values[] = {
+ { 0x00, "REQUEST" },
+ { 0x01, "REQUEST_NO_RETURN" },
+ { 0x02, "NOTIFICATION" },
+ { 0x80, "RESPONSE" },
+ { 0x81, "ERROR" },
+ { 0x20, "TP_REQUEST" },
+ { 0x21, "TP_REQUEST_NO_RETURN" },
+ { 0x22, "TP_NOTIFICATION" },
+ { 0xa0, "TP_RESPONSE" },
+ { 0xa1, "TP_ERROR" },
+ { 0, NULL }
+};
+
+struct tok return_code_values[] = {
+ { 0x00, "E_OK" },
+ { 0x01, "E_NOT_OK" },
+ { 0x02, "E_UNKNOWN_SERVICE" },
+ { 0x03, "E_UNKNOWN_METHOD" },
+ { 0x04, "E_NOT_READY" },
+ { 0x05, "E_NOT_REACHABLE" },
+ { 0x06, "E_TIMEOUT" },
+ { 0x07, "E_WRONG_PROTOCOL_VERSION" },
+ { 0x08, "E_WRONG_INTERFACE_VERSION" },
+ { 0x09, "E_MALFORMED_MESSAGE" },
+ { 0x0a, "E_WRONG_MESSAGE_TYPE" },
+ { 0x0b, "E_E2E_REPEATED" },
+ { 0x0c, "E_E2E_WRONG_SEQUENCE" },
+ { 0x0d, "E_E2E" },
+ { 0x0e, "E_E2E_NOT_AVAILABLE" },
+ { 0x0f, "E_E2E_NO_NEW_DATA" },
+};
+
+void
+someip_print(netdissect_options *ndo, const u_char *bp, u_int len)
+{
+ uint32_t message_id;
+ uint16_t service_id;
+ uint16_t method_or_event_id;
+ uint8_t event_flag;
+ uint32_t message_len;
+ uint32_t request_id;
+ uint16_t client_id;
+ uint16_t session_id;
+ uint8_t protocol_version;
+ uint8_t interface_version;
+ uint8_t message_type;
+ uint8_t return_code;
+
+ ndo->ndo_protocol = "someip";
+
+ if (len < 16) {
+ nd_print_trunc(ndo);
+ return;
+ }
+
+ message_id = GET_BE_U_4(bp);
+ service_id = message_id >> 16;
+ event_flag = (message_id & 0x00008000) >> 15;
+ method_or_event_id = message_id & 0x00007FFF;
+ bp += 4;
+
+ message_len = GET_BE_U_4(bp);
+ bp += 4;
+
+ request_id = GET_BE_U_4(bp);
+ client_id = request_id >> 16;
+ session_id = request_id & 0x0000FFFF;
+ bp += 4;
+
+ protocol_version = GET_U_1(bp);
+ bp += 1;
+
+ interface_version = GET_U_1(bp);
+ bp += 1;
+
+ message_type = GET_U_1(bp);
+ bp += 1;
+
+ return_code = GET_U_1(bp);
+ bp += 1;
+
+ ND_PRINT("SOMEIP, service %u, %s %u, len %u, client %u, session %u, "
+ "pver %u, iver %u, msgtype %s, retcode %s\n",
+ service_id, event_flag ? "event" : "method", method_or_event_id,
+ message_len, client_id, session_id, protocol_version,
+ interface_version,
+ tok2str(message_type_values, "Unknown", message_type),
+ tok2str(return_code_values, "Unknown", return_code));
+ return;
+}
projects / tcpdump / commitdiff
