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|
/* packet-mrcpv2.c
* Routines for Media Resource Control Protocol Version 2 (MRCPv2) dissection
* Copyright 2012, Zeljko Ancimer <zancimer[AT]gmail.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
/*
* Based on RFC 6787
*
* TODO:
* - TLS has not been tested
* - MRCP conversation (similar to VoIP Calls)
* - convert header value into the correct types (numbers, booleans,...);
* currently all values are treated as strings so one has to be
* careful with the usage of filters; to do this, one has to go through
* the mrcp draft and look for the definition of each header (see
* chapter titled "15. ABNF Normative Definition")
*/
#include "config.h"
/* Include only as needed */
#include <stdlib.h>
#include <epan/packet.h>
#include <epan/expert.h>
#include "packet-tcp.h"
#include <wsutil/str_util.h>
#include <wsutil/strtoi.h>
void proto_register_mrcpv2(void);
void proto_reg_handoff_mrcpv2(void);
static dissector_handle_t mrcpv2_handle;
/* mrcp-version SP message-length */
/* mrcp-version = "MRCP" "/" 1*2DIGIT "." 1*2DIGIT ==> up to 10 chars */
/* SP ==> whitespace, 1 char */
/* message-length = 1*19DIGIT ==> up to 19 chars */
/* total = 10 + 1 + 19 = 30 */
/* min length to determine MRCPv2 version */
#define MRCPV2_MIN_LENGTH 10
/* min length to determine MRCPv2 PDU length */
#define MRCPV2_MIN_PDU_LEN 30
/* line type */
typedef enum {
REQUEST_LINE,
RESPONSE_LINE,
EVENT_LINE,
UNKNOWN_LINE
} LINE_TYPE;
/* header type */
typedef enum {
UNKNOWN = 0,
ABORT_MODEL = 1,
ABORT_PHRASE_ENROLLMENT = 2,
ABORT_VERIFICATION = 3,
ACCEPT = 4,
ACCEPT_CHARSET = 5,
ACTIVE_REQUEST_ID_LIST = 6,
ADAPT_MODEL = 7,
AUDIO_FETCH_HINT = 8,
CACHE_CONTROL = 9,
CANCEL_IF_QUEUE = 10,
CAPTURE_ON_SPEECH = 11,
CHANNEL_IDENTIFIER = 12,
CLASH_THRESHOLD = 13,
CLEAR_DTMF_BUFFER = 14,
COMPLETION_CAUSE = 15,
COMPLETION_REASON = 16,
CONFIDENCE_THRESHOLD = 17,
CONFUSABLE_PHRASES_URI = 18,
CONSISTENCY_THRESHOLD = 19,
CONTENT_BASE = 20,
CONTENT_ENCODING = 21,
CONTENT_ID = 22,
CONTENT_LENGTH = 23,
CONTENT_LOCATION = 24,
CONTENT_TYPE = 25,
DTMF_BUFFER_TIME = 26,
DTMF_INTERDIGIT_TIMEOUT = 27,
DTMF_TERM_CHAR = 28,
DTMF_TERM_TIMEOUT = 29,
EARLY_NO_MATCH = 30,
ENROLL_UTTERANCE = 31,
FAILED_URI = 32,
FAILED_URI_CAUSE = 33,
FETCH_HINT = 34,
FETCH_TIMEOUT = 35,
FINAL_SILENCE = 36,
HOTWORD_MAX_DURATION = 37,
HOTWORD_MIN_DURATION = 38,
INPUT_TYPE = 39,
INPUT_WAVEFORM_URI = 40,
INTERPRET_TEXT = 41,
JUMP_SIZE = 42,
KILL_ON_BARGE_IN = 43,
LEXICON_SEARCH_ORDER = 44,
LOAD_LEXICON = 45,
LOGGING_TAG = 46,
MAX_TIME = 47,
MEDIA_TYPE = 48,
MIN_VERIFICATION_SCORE = 49,
N_BEST_LIST_LENGTH = 50,
NEW_AUDIO_CHANNEL = 51,
NEW_PHRASE_ID = 52,
NO_INPUT_TIMEOUT = 53,
NUM_MAX_VERIFICATION_PHRASES = 54,
NUM_MIN_CONSISTENT_PRONUNCIATIONS = 55,
NUM_MIN_VERIFICATION_PHRASES = 56,
PERSONAL_GRAMMAR_URI = 57,
PHRASE_ID = 58,
PHRASE_NL = 59,
PROSODY_CONTOUR = 60,
PROSODY_DURATION = 61,
PROSODY_PITCH = 62,
PROSODY_RANGE = 63,
PROSODY_RATE = 64,
PROSODY_VOLUME = 65,
PROXY_SYNC_ID = 66,
RECOGNITION_MODE = 67,
RECOGNITION_TIMEOUT = 68,
RECOGNIZER_CONTEXT_BLOCK = 69,
RECORD_URI = 70,
REPOSITORY_URI = 71,
SAVE_BEST_WAVEFORM = 72,
SAVE_WAVEFORM = 73,
SENSITIVITY_LEVEL = 74,
SET_COOKIE = 75,
SPEAK_LENGTH = 76,
SPEAK_RESTART = 77,
SPEAKER_PROFILE = 78,
SPEECH_COMPLETE_TIMEOUT = 79,
SPEECH_INCOMPLETE_TIMEOUT = 80,
SPEECH_LANGUAGE = 81,
SPEECH_MARKER = 82,
SPEED_VS_ACCURACY = 83,
START_INPUT_TIMERS = 84,
TRIM_LENGTH = 85,
VENDOR_SPECIFIC_PARAMETERS = 86,
VER_BUFFER_UTTERANCE = 87,
VERIFICATION_MODE = 88,
VOICE_AGE = 89,
VOICE_GENDER = 90,
VOICE_NAME = 91,
VOICE_VARIANT = 92,
VOICEPRINT_EXISTS = 93,
VOICEPRINT_IDENTIFIER = 94,
WAVEFORM_URI = 95,
WEIGHT = 96
} HEADER_TYPE;
static const value_string header_type_vals[] = {
{ ABORT_MODEL, "abort-model" },
{ ABORT_PHRASE_ENROLLMENT, "abort-phrase-enrollment" },
{ ABORT_VERIFICATION, "abort-verification" },
{ ACCEPT, "accept" },
{ ACCEPT_CHARSET, "accept-charset" },
{ ACTIVE_REQUEST_ID_LIST, "active-request-id-list" },
{ ADAPT_MODEL, "adapt-model" },
{ AUDIO_FETCH_HINT, "audio-fetch-hint" },
{ CACHE_CONTROL, "cache-control" },
{ CANCEL_IF_QUEUE, "cancel-if-queue" },
{ CAPTURE_ON_SPEECH, "capture-on-speech" },
{ CHANNEL_IDENTIFIER, "channel-identifier" },
{ CLASH_THRESHOLD, "clash-threshold" },
{ CLEAR_DTMF_BUFFER, "clear-dtmf-buffer" },
{ COMPLETION_CAUSE, "completion-cause" },
{ COMPLETION_REASON, "completion-reason" },
{ CONFIDENCE_THRESHOLD, "confidence-threshold" },
{ CONFUSABLE_PHRASES_URI, "confusable-phrases-uri" },
{ CONSISTENCY_THRESHOLD, "consistency-threshold" },
{ CONTENT_BASE, "content-base" },
{ CONTENT_ENCODING, "content-encoding" },
{ CONTENT_ID, "content-id" },
{ CONTENT_LENGTH, "content-length" },
{ CONTENT_LOCATION, "content-location" },
{ CONTENT_TYPE, "content-type" },
{ DTMF_BUFFER_TIME, "dtmf-buffer-time" },
{ DTMF_INTERDIGIT_TIMEOUT, "dtmf-interdigit-timeout" },
{ DTMF_TERM_CHAR, "dtmf-term-char" },
{ DTMF_TERM_TIMEOUT, "dtmf-term-timeout" },
{ EARLY_NO_MATCH, "early-no-match" },
{ ENROLL_UTTERANCE, "enroll-utterance" },
{ FAILED_URI, "failed-uri" },
{ FAILED_URI_CAUSE, "failed-uri-cause" },
{ FETCH_HINT, "fetch-hint" },
{ FETCH_TIMEOUT, "fetch-timeout" },
{ FINAL_SILENCE, "final-silence" },
{ HOTWORD_MAX_DURATION, "hotword-max-duration" },
{ HOTWORD_MIN_DURATION, "hotword-min-duration" },
{ INPUT_TYPE, "input-type" },
{ INPUT_WAVEFORM_URI, "input-waveform-uri" },
{ INTERPRET_TEXT, "interpret-text" },
{ JUMP_SIZE, "jump-size" },
{ KILL_ON_BARGE_IN, "kill-on-barge-in" },
{ LEXICON_SEARCH_ORDER, "lexicon-search-order" },
{ LOAD_LEXICON, "load-lexicon" },
{ LOGGING_TAG, "logging-tag" },
{ MAX_TIME, "max-time" },
{ MEDIA_TYPE, "media-type" },
{ MIN_VERIFICATION_SCORE, "min-verification-score" },
{ N_BEST_LIST_LENGTH, "n-best-list-length" },
{ NEW_AUDIO_CHANNEL, "new-audio-channel" },
{ NEW_PHRASE_ID, "new-phrase-id" },
{ NO_INPUT_TIMEOUT, "no-input-timeout" },
{ NUM_MAX_VERIFICATION_PHRASES, "num-max-verification-phrases" },
{ NUM_MIN_CONSISTENT_PRONUNCIATIONS, "num-min-consistent-pronunciations" },
{ NUM_MIN_VERIFICATION_PHRASES, "num-min-verification-phrases" },
{ PERSONAL_GRAMMAR_URI, "personal-grammar-uri" },
{ PHRASE_ID, "phrase-id" },
{ PHRASE_NL, "phrase-nl" },
{ PROSODY_CONTOUR, "prosody-contour" },
{ PROSODY_DURATION, "prosody-duration" },
{ PROSODY_PITCH, "prosody-pitch" },
{ PROSODY_RANGE, "prosody-range" },
{ PROSODY_RATE, "prosody-rate" },
{ PROSODY_VOLUME, "prosody-volume" },
{ PROXY_SYNC_ID, "proxy-sync-id" },
{ RECOGNITION_MODE, "recognition-mode" },
{ RECOGNITION_TIMEOUT, "recognition-timeout" },
{ RECOGNIZER_CONTEXT_BLOCK, "recognizer-context-block" },
{ RECORD_URI, "record-uri" },
{ REPOSITORY_URI, "repository-uri" },
{ SAVE_BEST_WAVEFORM, "save-best-waveform" },
{ SAVE_WAVEFORM, "save-waveform" },
{ SENSITIVITY_LEVEL, "sensitivity-level" },
{ SET_COOKIE, "set-cookie" },
{ SPEAK_LENGTH, "speak-length" },
{ SPEAK_RESTART, "speak-restart" },
{ SPEAKER_PROFILE, "speaker-profile" },
{ SPEECH_COMPLETE_TIMEOUT, "speech-complete-timeout" },
{ SPEECH_INCOMPLETE_TIMEOUT, "speech-incomplete-timeout" },
{ SPEECH_LANGUAGE, "speech-language" },
{ SPEECH_MARKER, "speech-marker" },
{ SPEED_VS_ACCURACY, "speed-vs-accuracy" },
{ START_INPUT_TIMERS, "start-input-timers" },
{ TRIM_LENGTH, "trim-length" },
{ VENDOR_SPECIFIC_PARAMETERS, "vendor-specific-parameters" },
{ VER_BUFFER_UTTERANCE, "ver-buffer-utterance" },
{ VERIFICATION_MODE, "verification-mode" },
{ VOICE_AGE, "voice-age" },
{ VOICE_GENDER, "voice-gender" },
{ VOICE_NAME, "voice-name" },
{ VOICE_VARIANT, "voice-variant" },
{ VOICEPRINT_EXISTS, "voiceprint-exists" },
{ VOICEPRINT_IDENTIFIER, "voiceprint-identifier" },
{ WAVEFORM_URI, "waveform-uri" },
{ WEIGHT, "weight" },
{ 0, NULL }
};
/* Initialize the protocol and registered fields */
static int proto_mrcpv2;
static int hf_mrcpv2_Request_Line;
static int hf_mrcpv2_Response_Line;
static int hf_mrcpv2_Event_Line;
static int hf_mrcpv2_Unknown_Message;
static int hf_mrcpv2_Unknown_Header;
static int hf_mrcpv2_Data;
static int hf_mrcpv2_Method;
static int hf_mrcpv2_Event;
static int hf_mrcpv2_version;
static int hf_mrcpv2_message_length;
static int hf_mrcpv2_request_id;
static int hf_mrcpv2_status_code;
static int hf_mrcpv2_request_state;
static int hf_mrcpv2_Abort_Model;
static int hf_mrcpv2_Abort_Phrase_Enrollment;
static int hf_mrcpv2_Abort_Verification;
static int hf_mrcpv2_Accept;
static int hf_mrcpv2_Accept_Charset;
static int hf_mrcpv2_Active_Request_Id_List;
static int hf_mrcpv2_Adapt_Model;
static int hf_mrcpv2_Audio_Fetch_Hint;
static int hf_mrcpv2_Cache_Control;
static int hf_mrcpv2_Cancel_If_Queue;
static int hf_mrcpv2_Capture_On_Speech;
static int hf_mrcpv2_Channel_Identifier;
static int hf_mrcpv2_Clash_Threshold;
static int hf_mrcpv2_Clear_Dtmf_Buffer;
static int hf_mrcpv2_Completion_Cause;
static int hf_mrcpv2_Completion_Reason;
static int hf_mrcpv2_Confidence_Threshold;
static int hf_mrcpv2_Confusable_Phrases_URI;
static int hf_mrcpv2_Consistency_Threshold;
static int hf_mrcpv2_Content_Base;
static int hf_mrcpv2_Content_Encoding;
static int hf_mrcpv2_Content_ID;
static int hf_mrcpv2_Content_Length;
static int hf_mrcpv2_Content_Location;
static int hf_mrcpv2_Content_Type;
static int hf_mrcpv2_Dtmf_Buffer_Time;
static int hf_mrcpv2_Dtmf_Interdigit_Timeout;
static int hf_mrcpv2_Dtmf_Term_Char;
static int hf_mrcpv2_Dtmf_Term_Timeout;
static int hf_mrcpv2_Early_No_Match;
static int hf_mrcpv2_Enroll_Utterance;
static int hf_mrcpv2_Failed_URI;
static int hf_mrcpv2_Failed_URI_Cause;
static int hf_mrcpv2_Fetch_Hint;
static int hf_mrcpv2_Fetch_Timeout;
static int hf_mrcpv2_Final_Silence;
static int hf_mrcpv2_Hotword_Max_Duration;
static int hf_mrcpv2_Hotword_Min_Duration;
static int hf_mrcpv2_Input_Type;
static int hf_mrcpv2_Input_Waveform_URI;
static int hf_mrcpv2_Interpret_Text;
static int hf_mrcpv2_Jump_Size;
static int hf_mrcpv2_Kill_On_Barge_In;
static int hf_mrcpv2_Lexicon_Search_Order;
static int hf_mrcpv2_Load_Lexicon;
static int hf_mrcpv2_Logging_Tag;
static int hf_mrcpv2_Max_Time;
static int hf_mrcpv2_Media_Type;
static int hf_mrcpv2_Min_Verification_Score;
static int hf_mrcpv2_N_Best_List_Length;
static int hf_mrcpv2_New_Audio_Channel;
static int hf_mrcpv2_New_Phrase_ID;
static int hf_mrcpv2_No_Input_Timeout;
static int hf_mrcpv2_Num_Max_Verification_Phrases;
static int hf_mrcpv2_Num_Min_Consistent_Pronunciations;
static int hf_mrcpv2_Num_Min_Verification_Phrases;
static int hf_mrcpv2_Personal_Grammar_URI;
static int hf_mrcpv2_Phrase_ID;
static int hf_mrcpv2_Phrase_NL;
static int hf_mrcpv2_Prosody_Contour;
static int hf_mrcpv2_Prosody_Duration;
static int hf_mrcpv2_Prosody_Pitch;
static int hf_mrcpv2_Prosody_Range;
static int hf_mrcpv2_Prosody_Rate;
static int hf_mrcpv2_Prosody_Volume;
static int hf_mrcpv2_Proxy_Sync_Id;
static int hf_mrcpv2_Recognition_Mode;
static int hf_mrcpv2_Recognition_Timeout;
static int hf_mrcpv2_Recognizer_Context_Block;
static int hf_mrcpv2_Record_URI;
static int hf_mrcpv2_Repository_URI;
static int hf_mrcpv2_Save_Best_Waveform;
static int hf_mrcpv2_Save_Waveform;
static int hf_mrcpv2_Sensitivity_Level;
static int hf_mrcpv2_Set_Cookie;
static int hf_mrcpv2_Speak_Length;
static int hf_mrcpv2_Speak_Restart;
static int hf_mrcpv2_Speaker_Profile;
static int hf_mrcpv2_Speech_Complete_Timeout;
static int hf_mrcpv2_Speech_Incomplete_Timeout;
static int hf_mrcpv2_Speech_Language;
static int hf_mrcpv2_Speech_Marker;
static int hf_mrcpv2_Speed_Vs_Accuracy;
static int hf_mrcpv2_Start_Input_Timers;
static int hf_mrcpv2_Trim_Length;
static int hf_mrcpv2_Vendor_Specific_Parameters;
static int hf_mrcpv2_Ver_Buffer_Utterance;
static int hf_mrcpv2_Verification_Mode;
static int hf_mrcpv2_Voice_Age;
static int hf_mrcpv2_Voice_Gender;
static int hf_mrcpv2_Voice_Name;
static int hf_mrcpv2_Voice_Variant;
static int hf_mrcpv2_Voiceprint_Exists;
static int hf_mrcpv2_Voiceprint_Identifier;
static int hf_mrcpv2_Waveform_URI;
static int hf_mrcpv2_Weight;
static expert_field ei_mrcpv2_Content_Length_invalid;
/* Global MRCPv2 port pref */
#define TCP_DEFAULT_RANGE "6075, 30000-30200" /* Not IANA registered */
/* Initialize the subtree pointers */
static int ett_mrcpv2;
static int ett_Request_Line;
static int ett_Response_Line;
static int ett_Event_Line;
static int ett_Status_Code;
/* format status code description */
static const string_string status_code_vals[] = {
{ "200", "Success" },
{ "201", "Success with some optional header fields ignored" },
{ "401", "Client Failure: Method not allowed" },
{ "402", "Client Failure: Method not valid in this state" },
{ "403", "Client Failure: Unsupported header field" },
{ "404", "Client Failure: Illegal value for header field. This is the error for a syntax violation." },
{ "405", "Client Failure: Resource not allocated for this session or does not exist" },
{ "406", "Client Failure: Mandatory Header Field Missing" },
{ "407", "Client Failure: Method or Operation Failed (e.g., Grammar compilation failed in the recognizer. Detailed cause codes might be available through a resource specific header.)" },
{ "408", "Client Failure: Unrecognized or unsupported message entity" },
{ "409", "Client Failure: Unsupported Header Field Value. This is a value that is syntactically legal but exceeds the implementation's capabilities or expectations." },
{ "410", "Client Failure: Non-Monotonic or Out of order sequence number in request." },
{ "501", "Server Failure: Server Internal Error" },
{ "502", "Server Failure: Protocol Version not supported" },
{ "503", "Server Failure: Reserved for future assignment" },
{ "504", "Server Failure: Message too large" },
{ NULL, NULL }
};
/* Code to actually dissect the packets */
static int
dissect_mrcpv2_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
/* Set up structures needed to add the protocol subtree and manage it */
proto_item *ti;
proto_tree *mrcpv2_tree;
int next_offset, linelen;
int tvb_len;
int pdu_size;
int offset;
int value_offset;
int str_len;
char *header_name;
char *header_value;
LINE_TYPE line_type = UNKNOWN_LINE;
HEADER_TYPE header_type;
int colon_offset;
int content_length;
const value_string *p = NULL;
proto_item *line_item = NULL;
proto_item *request_line_item = NULL;
proto_item *response_line_item = NULL;
proto_item *event_line_item = NULL;
proto_item *status_code_item = NULL;
proto_item *pi = NULL;
int sp_start;
int sp_end;
uint8_t *field1;
uint8_t *field2;
uint8_t *field3;
uint8_t *field4;
uint8_t *field5 = NULL;
/* Make entries in Protocol column and Info column on summary display */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "MRCPv2");
offset = 0;
tvb_len = tvb_reported_length(tvb);
ti = proto_tree_add_item(tree, proto_mrcpv2, tvb, 0, -1, ENC_UTF_8);
mrcpv2_tree = proto_item_add_subtree(ti, ett_mrcpv2);
/* get first line */
linelen = tvb_find_line_end(tvb, offset, -1, &next_offset, false);
/* find out MRCP message type:
request-line = mrcp-version SP message-length SP method-name SP request-id CRLF
response-line = mrcp-version SP message-length SP request-id SP status-code SP request-state CRLF
event-line = mrcp-version SP message-length SP event-name SP request-id SP request-state CRLF
*/
/* version */
sp_end = tvb_find_uint8(tvb, 0, linelen, ' ');
if ((sp_end == -1) || (sp_end > tvb_len) || (sp_end > linelen))
return -1;
field1 = tvb_get_string_enc(pinfo->pool, tvb, 0, sp_end, ENC_ASCII);
sp_start = sp_end + 1;
/* length */
sp_end = tvb_find_uint8(tvb, sp_start, linelen - sp_start, ' ');
if ((sp_end == -1) || (sp_end > tvb_len) || (sp_end > linelen))
return -1;
field2 = tvb_get_string_enc(pinfo->pool, tvb, sp_start, sp_end - sp_start, ENC_ASCII);
sp_start = sp_end + 1;
/* method, request ID or event */
sp_end = tvb_find_uint8(tvb, sp_start, linelen - sp_start, ' ');
if ((sp_end == -1) || (sp_end > tvb_len) || (sp_end > linelen))
return -1;
field3 = tvb_get_string_enc(pinfo->pool, tvb, sp_start, sp_end - sp_start, ENC_ASCII);
sp_start = sp_end + 1;
/* request ID or status code */
sp_end = tvb_find_uint8(tvb, sp_start, linelen - sp_start, ' ');
if (sp_end == -1)
{
field4 = tvb_get_string_enc(pinfo->pool, tvb, sp_start, linelen - sp_start, ENC_ASCII);
line_type = REQUEST_LINE; /* only request line has 4 parameters */
}
else
{
if ((sp_end > tvb_len) || (sp_end > linelen))
return -1;
field4 = tvb_get_string_enc(pinfo->pool, tvb, sp_start, sp_end - sp_start, ENC_ASCII);
if (g_ascii_isdigit(field3[0])) /* request ID is number, so it has to be response */
line_type = RESPONSE_LINE;
else
line_type = EVENT_LINE;
sp_start = sp_end + 1;
sp_end = linelen;
if ((sp_end > tvb_len) || (sp_end > linelen))
return -1;
field5 = tvb_get_string_enc(pinfo->pool, tvb, sp_start, sp_end - sp_start, ENC_ASCII);
}
/* check pdu size */
if (!ws_strtou32(field2, NULL, &pdu_size) || pdu_size > tvb_len)
return -1;
/* process MRCP header line */
switch(line_type){
case REQUEST_LINE:
{
col_set_str(pinfo->cinfo, COL_INFO, "Request: ");
line_item = proto_tree_add_item(mrcpv2_tree, hf_mrcpv2_Request_Line, tvb, offset, linelen, ENC_UTF_8);
request_line_item = proto_item_add_subtree(line_item, ett_Request_Line);
/* version */
str_len = (int)strlen(field1);
proto_tree_add_item(request_line_item, hf_mrcpv2_version, tvb, offset, str_len, ENC_UTF_8);
offset += str_len + 1; /* add SP */
/* message length */
str_len = (int)strlen(field2);
proto_tree_add_item(request_line_item, hf_mrcpv2_message_length, tvb, offset, str_len, ENC_UTF_8);
offset += str_len + 1; /* add SP */
/* method name */
col_append_str(pinfo->cinfo, COL_INFO, field3);
str_len = (int)strlen(field3);
proto_tree_add_item(request_line_item, hf_mrcpv2_Method, tvb, offset, str_len, ENC_UTF_8);
offset += str_len + 1; /* add SP */
/* request ID */
str_len = (int)strlen(field4);
proto_tree_add_item(request_line_item, hf_mrcpv2_request_id, tvb, offset, str_len, ENC_UTF_8);
/*offset += str_len + 2;*/ /* add CRLF */
}
break;
case RESPONSE_LINE:
{
col_set_str(pinfo->cinfo, COL_INFO, "Response: ");
line_item = proto_tree_add_item(mrcpv2_tree, hf_mrcpv2_Response_Line, tvb, offset, linelen, ENC_UTF_8);
response_line_item = proto_item_add_subtree(line_item, ett_Response_Line);
/* version */
str_len = (int)strlen(field1);
proto_tree_add_item(response_line_item, hf_mrcpv2_version, tvb, offset, str_len, ENC_UTF_8);
offset += str_len + 1; /* add SP */
/* message length */
str_len = (int)strlen(field2);
proto_tree_add_item(response_line_item, hf_mrcpv2_message_length, tvb, offset, str_len, ENC_UTF_8);
offset += str_len + 1; /* add SP */
/* request ID */
str_len = (int)strlen(field3);
proto_tree_add_item(response_line_item, hf_mrcpv2_request_id, tvb, offset, str_len, ENC_UTF_8);
offset += str_len + 1; /* add SP */
/* status code */
str_len = (int)strlen(field4);
status_code_item = proto_tree_add_item(response_line_item, hf_mrcpv2_status_code, tvb, offset,
str_len, ENC_UTF_8);
proto_item_append_text(status_code_item, " %s", str_to_str(field4, status_code_vals, "Unknown Status Code"));
offset += str_len + 1; /* add SP */
/* request state */
col_append_fstr(pinfo->cinfo, COL_INFO, "(%s) %s", field4, field5);
str_len = (int)strlen(field5);
proto_tree_add_item(response_line_item, hf_mrcpv2_request_state, tvb, offset, str_len, ENC_UTF_8);
/*offset += str_len + 2;*/ /* add CRLF */
}
break;
case EVENT_LINE:
{
col_set_str(pinfo->cinfo, COL_INFO, "Event: ");
line_item = proto_tree_add_item(mrcpv2_tree, hf_mrcpv2_Event_Line, tvb, offset, linelen, ENC_UTF_8);
event_line_item = proto_item_add_subtree(line_item, ett_Event_Line);
/* version */
str_len = (int)strlen(field1);
proto_tree_add_item(event_line_item, hf_mrcpv2_version, tvb, offset, str_len, ENC_UTF_8);
offset += str_len + 1; /* add SP */
/* message length */
str_len = (int)strlen(field2);
proto_tree_add_item(event_line_item, hf_mrcpv2_message_length, tvb, offset, str_len, ENC_UTF_8);
offset += str_len + 1; /* add SP */
/* event name */
col_append_str(pinfo->cinfo, COL_INFO, field3);
str_len = (int)strlen(field3);
proto_tree_add_item(event_line_item, hf_mrcpv2_Event, tvb, offset, str_len, ENC_UTF_8);
offset += str_len + 1; /* add SP */
/* request ID */
str_len = (int)strlen(field4);
proto_tree_add_item(event_line_item, hf_mrcpv2_request_id, tvb, offset, str_len, ENC_UTF_8);
offset += str_len + 1; /* add SP */
/* request state */
str_len = (int)strlen(field5);
proto_tree_add_item(event_line_item, hf_mrcpv2_request_state, tvb, offset, str_len, ENC_UTF_8);
/*offset += str_len + 2;*/ /* add CRLF */
}
break;
default:
{
/* mark whole packet as unknown and return */
col_set_str(pinfo->cinfo, COL_INFO, "UNKNOWN message");
proto_tree_add_item(mrcpv2_tree, hf_mrcpv2_Unknown_Message, tvb, offset, tvb_len, ENC_UTF_8);
return tvb_len;
}
}
if (tree) {
/* process the rest of the header lines here */
content_length = 0;
while (tvb_offset_exists(tvb, next_offset))
{
/* get next line */
offset = next_offset;
linelen = tvb_find_line_end(tvb, offset, -1, &next_offset, false);
/* blank line separates msg header and msg body */
if (linelen == 0)
{
if (content_length > 0)
{ /* content length > 0 and CRLF detected, this has to be msg body */
offset += 2; /* skip separating CRLF */
proto_tree_add_item(mrcpv2_tree, hf_mrcpv2_Data, tvb, offset, tvb_len - offset, ENC_ASCII);
next_offset = tvb_len; /* we are done */
}
continue;
}
/* get header type and its value */
colon_offset = tvb_find_uint8(tvb, offset, linelen, ':');
if (colon_offset == -1)
{ /* header type should end with ':' */
proto_tree_add_item(mrcpv2_tree, hf_mrcpv2_Unknown_Header, tvb, offset, linelen, ENC_UTF_8);
continue;
}
header_name = tvb_get_string_enc(pinfo->pool, tvb, offset, colon_offset - offset, ENC_ASCII);
ascii_strdown_inplace(header_name);
value_offset = tvb_skip_wsp(tvb, colon_offset + 1, offset + linelen - (colon_offset + 1));
header_value = tvb_get_string_enc(pinfo->pool, tvb, value_offset, offset + linelen - value_offset, ENC_ASCII);
/* find out header type */
header_type = UNKNOWN;
for (p = header_type_vals; p->strptr != NULL; ++p)
{
if (strncmp(p->strptr, header_name, strlen(p->strptr)) == 0)
{
header_type = (HEADER_TYPE)p->value;
break;
}
}
/* add header type and value into the tree */
switch (header_type)
{
case ABORT_MODEL:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Abort_Model, tvb, offset, linelen, header_value);
break;
case ABORT_PHRASE_ENROLLMENT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Abort_Phrase_Enrollment, tvb, offset, linelen, header_value);
break;
case ABORT_VERIFICATION:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Abort_Verification, tvb, offset, linelen, header_value);
break;
case ACCEPT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Accept, tvb, offset, linelen, header_value);
break;
case ACCEPT_CHARSET:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Accept_Charset, tvb, offset, linelen, header_value);
break;
case ACTIVE_REQUEST_ID_LIST:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Active_Request_Id_List, tvb, offset, linelen, header_value);
break;
case ADAPT_MODEL:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Adapt_Model, tvb, offset, linelen, header_value);
break;
case AUDIO_FETCH_HINT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Audio_Fetch_Hint, tvb, offset, linelen, header_value);
break;
case CACHE_CONTROL:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Cache_Control, tvb, offset, linelen, header_value);
break;
case CANCEL_IF_QUEUE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Cancel_If_Queue, tvb, offset, linelen, header_value);
break;
case CAPTURE_ON_SPEECH:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Capture_On_Speech, tvb, offset, linelen, header_value);
break;
case CHANNEL_IDENTIFIER:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Channel_Identifier, tvb, offset, linelen, header_value);
break;
case CLASH_THRESHOLD:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Clash_Threshold, tvb, offset, linelen, header_value);
break;
case CLEAR_DTMF_BUFFER:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Clear_Dtmf_Buffer, tvb, offset, linelen, header_value);
break;
case COMPLETION_CAUSE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Completion_Cause, tvb, offset, linelen, header_value);
break;
case COMPLETION_REASON:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Completion_Reason, tvb, offset, linelen, header_value);
break;
case CONFIDENCE_THRESHOLD:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Confidence_Threshold, tvb, offset, linelen, header_value);
break;
case CONFUSABLE_PHRASES_URI:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Confusable_Phrases_URI, tvb, offset, linelen, header_value);
break;
case CONSISTENCY_THRESHOLD:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Consistency_Threshold, tvb, offset, linelen, header_value);
break;
case CONTENT_BASE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Content_Base, tvb, offset, linelen, header_value);
break;
case CONTENT_ENCODING:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Content_Encoding, tvb, offset, linelen, header_value);
break;
case CONTENT_ID:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Content_ID, tvb, offset, linelen, header_value);
break;
case CONTENT_LENGTH:
pi = proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Content_Length, tvb, offset, linelen, header_value);
/* if content length is > 0, then there are some data after the headers */
if (!ws_strtou32(header_value, NULL, &content_length)) {
content_length = 0;
expert_add_info(pinfo, pi, &ei_mrcpv2_Content_Length_invalid);
}
break;
case CONTENT_LOCATION:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Content_Location, tvb, offset, linelen, header_value);
break;
case CONTENT_TYPE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Content_Type, tvb, offset, linelen, header_value);
break;
case DTMF_BUFFER_TIME:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Dtmf_Buffer_Time, tvb, offset, linelen, header_value);
break;
case DTMF_INTERDIGIT_TIMEOUT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Dtmf_Interdigit_Timeout, tvb, offset, linelen, header_value);
break;
case DTMF_TERM_CHAR:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Dtmf_Term_Char, tvb, offset, linelen, header_value);
break;
case DTMF_TERM_TIMEOUT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Dtmf_Term_Timeout, tvb, offset, linelen, header_value);
break;
case EARLY_NO_MATCH:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Early_No_Match, tvb, offset, linelen, header_value);
break;
case ENROLL_UTTERANCE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Enroll_Utterance, tvb, offset, linelen, header_value);
break;
case FAILED_URI:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Failed_URI, tvb, offset, linelen, header_value);
break;
case FAILED_URI_CAUSE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Failed_URI_Cause, tvb, offset, linelen, header_value);
break;
case FETCH_HINT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Fetch_Hint, tvb, offset, linelen, header_value);
break;
case FETCH_TIMEOUT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Fetch_Timeout, tvb, offset, linelen, header_value);
break;
case FINAL_SILENCE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Final_Silence, tvb, offset, linelen, header_value);
break;
case HOTWORD_MAX_DURATION:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Hotword_Max_Duration, tvb, offset, linelen, header_value);
break;
case HOTWORD_MIN_DURATION:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Hotword_Min_Duration, tvb, offset, linelen, header_value);
break;
case INPUT_TYPE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Input_Type, tvb, offset, linelen, header_value);
break;
case INPUT_WAVEFORM_URI:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Input_Waveform_URI, tvb, offset, linelen, header_value);
break;
case INTERPRET_TEXT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Interpret_Text, tvb, offset, linelen, header_value);
break;
case JUMP_SIZE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Jump_Size, tvb, offset, linelen, header_value);
break;
case KILL_ON_BARGE_IN:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Kill_On_Barge_In, tvb, offset, linelen, header_value);
break;
case LEXICON_SEARCH_ORDER:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Lexicon_Search_Order, tvb, offset, linelen, header_value);
break;
case LOAD_LEXICON:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Load_Lexicon, tvb, offset, linelen, header_value);
break;
case LOGGING_TAG:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Logging_Tag, tvb, offset, linelen, header_value);
break;
case MAX_TIME:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Max_Time, tvb, offset, linelen, header_value);
break;
case MEDIA_TYPE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Media_Type, tvb, offset, linelen, header_value);
break;
case MIN_VERIFICATION_SCORE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Min_Verification_Score, tvb, offset, linelen, header_value);
break;
case N_BEST_LIST_LENGTH:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_N_Best_List_Length, tvb, offset, linelen, header_value);
break;
case NEW_AUDIO_CHANNEL:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_New_Audio_Channel, tvb, offset, linelen, header_value);
break;
case NEW_PHRASE_ID:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_New_Phrase_ID, tvb, offset, linelen, header_value);
break;
case NO_INPUT_TIMEOUT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_No_Input_Timeout, tvb, offset, linelen, header_value);
break;
case NUM_MAX_VERIFICATION_PHRASES:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Num_Max_Verification_Phrases, tvb, offset, linelen, header_value);
break;
case NUM_MIN_CONSISTENT_PRONUNCIATIONS:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Num_Min_Consistent_Pronunciations, tvb, offset, linelen, header_value);
break;
case NUM_MIN_VERIFICATION_PHRASES:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Num_Min_Verification_Phrases, tvb, offset, linelen, header_value);
break;
case PERSONAL_GRAMMAR_URI:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Personal_Grammar_URI, tvb, offset, linelen, header_value);
break;
case PHRASE_ID:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Phrase_ID, tvb, offset, linelen, header_value);
break;
case PHRASE_NL:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Phrase_NL, tvb, offset, linelen, header_value);
break;
case PROSODY_CONTOUR:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Prosody_Contour, tvb, offset, linelen, header_value);
break;
case PROSODY_DURATION:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Prosody_Duration, tvb, offset, linelen, header_value);
break;
case PROSODY_PITCH:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Prosody_Pitch, tvb, offset, linelen, header_value);
break;
case PROSODY_RANGE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Prosody_Range, tvb, offset, linelen, header_value);
break;
case PROSODY_RATE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Prosody_Rate, tvb, offset, linelen, header_value);
break;
case PROSODY_VOLUME:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Prosody_Volume, tvb, offset, linelen, header_value);
break;
case PROXY_SYNC_ID:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Proxy_Sync_Id, tvb, offset, linelen, header_value);
break;
case RECOGNITION_MODE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Recognition_Mode, tvb, offset, linelen, header_value);
break;
case RECOGNITION_TIMEOUT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Recognition_Timeout, tvb, offset, linelen, header_value);
break;
case RECOGNIZER_CONTEXT_BLOCK:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Recognizer_Context_Block, tvb, offset, linelen, header_value);
break;
case RECORD_URI:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Record_URI, tvb, offset, linelen, header_value);
break;
case REPOSITORY_URI:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Repository_URI, tvb, offset, linelen, header_value);
break;
case SAVE_BEST_WAVEFORM:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Save_Best_Waveform, tvb, offset, linelen, header_value);
break;
case SAVE_WAVEFORM:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Save_Waveform, tvb, offset, linelen, header_value);
break;
case SENSITIVITY_LEVEL:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Sensitivity_Level, tvb, offset, linelen, header_value);
break;
case SET_COOKIE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Set_Cookie, tvb, offset, linelen, header_value);
break;
case SPEAK_LENGTH:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Speak_Length, tvb, offset, linelen, header_value);
break;
case SPEAK_RESTART:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Speak_Restart, tvb, offset, linelen, header_value);
break;
case SPEAKER_PROFILE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Speaker_Profile, tvb, offset, linelen, header_value);
break;
case SPEECH_COMPLETE_TIMEOUT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Speech_Complete_Timeout, tvb, offset, linelen, header_value);
break;
case SPEECH_INCOMPLETE_TIMEOUT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Speech_Incomplete_Timeout, tvb, offset, linelen, header_value);
break;
case SPEECH_LANGUAGE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Speech_Language, tvb, offset, linelen, header_value);
break;
case SPEECH_MARKER:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Speech_Marker, tvb, offset, linelen, header_value);
break;
case SPEED_VS_ACCURACY:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Speed_Vs_Accuracy, tvb, offset, linelen, header_value);
break;
case START_INPUT_TIMERS:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Start_Input_Timers, tvb, offset, linelen, header_value);
break;
case TRIM_LENGTH:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Trim_Length, tvb, offset, linelen, header_value);
break;
case VENDOR_SPECIFIC_PARAMETERS:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Vendor_Specific_Parameters, tvb, offset, linelen, header_value);
break;
case VER_BUFFER_UTTERANCE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Ver_Buffer_Utterance, tvb, offset, linelen, header_value);
break;
case VERIFICATION_MODE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Verification_Mode, tvb, offset, linelen, header_value);
break;
case VOICE_AGE:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Voice_Age, tvb, offset, linelen, header_value);
break;
case VOICE_GENDER:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Voice_Gender, tvb, offset, linelen, header_value);
break;
case VOICE_NAME:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Voice_Name, tvb, offset, linelen, header_value);
break;
case VOICE_VARIANT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Voice_Variant, tvb, offset, linelen, header_value);
break;
case VOICEPRINT_EXISTS:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Voiceprint_Exists, tvb, offset, linelen, header_value);
break;
case VOICEPRINT_IDENTIFIER:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Voiceprint_Identifier, tvb, offset, linelen, header_value);
break;
case WAVEFORM_URI:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Waveform_URI, tvb, offset, linelen, header_value);
break;
case WEIGHT:
proto_tree_add_string(mrcpv2_tree, hf_mrcpv2_Weight, tvb, offset, linelen, header_value);
break;
default:
proto_tree_add_item(mrcpv2_tree, hf_mrcpv2_Unknown_Header, tvb, offset, linelen, ENC_UTF_8);
break;
}
}
}
/* Return the amount of data this dissector was able to dissect */
return tvb_captured_length(tvb);
}
/* get the length of the MRCP message */
static unsigned
get_mrcpv2_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset, void *data _U_)
{
int len_start;
int len_end;
uint8_t *msg_len;
unsigned num_msg_len = 0;
/* first string is version */
len_start = tvb_find_uint8(tvb, offset, MRCPV2_MIN_PDU_LEN, ' ');
if (len_start == -1)
return 0;
len_start += 1; /* skip whitespace */
/* second string is message length */
len_end = tvb_find_uint8(tvb, len_start, MRCPV2_MIN_PDU_LEN - len_start, ' ');
if (len_end == -1)
msg_len = tvb_get_string_enc(pinfo->pool, tvb, len_start, MRCPV2_MIN_PDU_LEN - len_start, ENC_ASCII);
else
msg_len = tvb_get_string_enc(pinfo->pool, tvb, len_start, len_end - len_start, ENC_ASCII);
ws_strtou32(msg_len, NULL, &num_msg_len);
return num_msg_len;
}
static int
dissect_mrcpv2_tcp_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
return dissect_mrcpv2_common(tvb, pinfo, tree);
}
static int
dissect_mrcpv2_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
int len;
int value_size;
uint8_t *version;
uint8_t *major;
uint8_t *minor;
int slash_offset;
int dot_offset;
int sp_offset;
int value;
len = tvb_captured_length(tvb);
if (len < MRCPV2_MIN_LENGTH) /* too short, can't conclude if it's mrcp */
return 0;
/* we are looking for MRCP string */
slash_offset = tvb_find_uint8(tvb, 0, MRCPV2_MIN_LENGTH, '/');
if (slash_offset != 4)
return 0;
version = tvb_get_string_enc(pinfo->pool, tvb, 0, slash_offset, ENC_ASCII);
if (strcmp(version, "MRCP") != 0)
return 0;
/* get first digit after the '/'; it should be 2 */
dot_offset = tvb_find_uint8(tvb, slash_offset + 1, MRCPV2_MIN_LENGTH - slash_offset - 1, '.');
if (dot_offset == -1)
return 0;
value_size = dot_offset - slash_offset - 1;
if ((value_size != 1) && (value_size != 2))
return 0;
major = tvb_get_string_enc(pinfo->pool, tvb, slash_offset + 1, value_size, ENC_ASCII);
if (!ws_strtou32(major, NULL, &value) || value != 2)
return 0;
/* get second digit, it should be 0 */
sp_offset = tvb_find_uint8(tvb, dot_offset + 1, MRCPV2_MIN_LENGTH - dot_offset - 1, ' ');
if (sp_offset == -1)
{
minor = tvb_get_string_enc(pinfo->pool, tvb, dot_offset + 1, MRCPV2_MIN_LENGTH - dot_offset - 1, ENC_ASCII);
len = MRCPV2_MIN_LENGTH;
}
else
{
minor = tvb_get_string_enc(pinfo->pool, tvb, dot_offset + 1, MRCPV2_MIN_LENGTH - sp_offset - 1, ENC_ASCII);
len = sp_offset;
}
if (!ws_strtou32(minor, NULL, &value) || value != 0)
return 0;
/* if we are here, then we have MRCP v 2.0 protocol, so proceed with the dissection */
tcp_dissect_pdus(tvb, pinfo, tree, true, MRCPV2_MIN_PDU_LEN,
get_mrcpv2_pdu_len,
dissect_mrcpv2_tcp_pdu, data);
return len;
}
void
proto_register_mrcpv2(void)
{
expert_module_t* expert_mrcpv2;
static hf_register_info hf[] = {
{ &hf_mrcpv2_Request_Line,
{ "Request-Line", "mrcpv2.Request-Line",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_Response_Line,
{ "Response-Line", "mrcpv2.Response-Line",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_Event_Line,
{ "Event-Line", "mrcpv2.Event-Line",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_Unknown_Message,
{ "Unknown Message", "mrcpv2.Unknown-Message",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_Unknown_Header,
{ "Unknown Header", "mrcpv2.Unknown-Header",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_Data,
{ "Message data", "mrcpv2.Data",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_Method,
{ "Method", "mrcpv2.Method",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_Event,
{ "Event", "mrcpv2.Event",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_version,
{ "Version", "mrcpv2.Version",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_message_length,
{ "Message Length", "mrcpv2.msg_len",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_request_id,
{ "Request ID", "mrcpv2.reqID",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_status_code,
{ "Status Code", "mrcpv2.status_code",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_request_state,
{ "Request State", "mrcpv2.request_state",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL }
},
{ &hf_mrcpv2_Abort_Model,
{ "Abort-Model", "mrcpv2.Abort-Model",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Abort_Phrase_Enrollment,
{ "Abort-Phrase-Enrollment", "mrcpv2.Abort-Phrase-Enrollment",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Abort_Verification,
{ "Abort-Verification", "mrcpv2.Abort-Verification",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Accept,
{ "Accept", "mrcpv2.Accept",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Accept_Charset,
{ "Accept-Charset", "mrcpv2.Accept-Charset",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Active_Request_Id_List,
{ "Active-Request-Id-List", "mrcpv2.Active-Request-Id-List",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Adapt_Model,
{ "Adapt-Model", "mrcpv2.Adapt-Model",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Audio_Fetch_Hint,
{ "Audio-Fetch-Hint", "mrcpv2.Audio-Fetch-Hint",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Cache_Control,
{ "Cache-Control", "mrcpv2.Cache-Control",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Cancel_If_Queue,
{ "Cancel-If-Queue", "mrcpv2.Cancel-If-Queue",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Capture_On_Speech,
{ "Capture-On-Speech", "mrcpv2.Capture-On-Speech",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Channel_Identifier,
{ "Channel-Identifier", "mrcpv2.Channel-Identifier",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Clash_Threshold,
{ "Clash-Threshold", "mrcpv2.Clash-Threshold",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Clear_Dtmf_Buffer,
{ "Clear-Dtmf-Buffer", "mrcpv2.Clear-Dtmf-Buffer",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Completion_Cause,
{ "Completion-Cause", "mrcpv2.Completion-Cause",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Completion_Reason,
{ "Completion-Reason", "mrcpv2.Completion-Reason",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Confidence_Threshold,
{ "Confidence-Threshold", "mrcpv2.Confidence-Threshold",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Confusable_Phrases_URI,
{ "Confusable-Phrases-URI", "mrcpv2.Confusable-Phrases-URI",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Consistency_Threshold,
{ "Consistency-Threshold", "mrcpv2.Consistency-Threshold",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Content_Base,
{ "Content-Base", "mrcpv2.Content-Base",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Content_Encoding,
{ "Content-Encoding", "mrcpv2.Content-Encoding",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Content_ID,
{ "Content-ID", "mrcpv2.Content-ID",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Content_Length,
{ "Content-Length", "mrcpv2.Content-Length",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Content_Location,
{ "Content-Location", "mrcpv2.Content-Location",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Content_Type,
{ "Content-Type", "mrcpv2.Content-Type",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Dtmf_Buffer_Time,
{ "Dtmf-Buffer-Time", "mrcpv2.Dtmf-Buffer-Time",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Dtmf_Interdigit_Timeout,
{ "Dtmf-Interdigit-Timeout", "mrcpv2.Dtmf-Interdigit-Timeout",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Dtmf_Term_Char,
{ "Dtmf-Term-Char", "mrcpv2.Dtmf-Term-Char",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Dtmf_Term_Timeout,
{ "Dtmf-Term-Timeout", "mrcpv2.Dtmf-Term-Timeout",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Early_No_Match,
{ "Early-No-Match", "mrcpv2.Early-No-Match",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Enroll_Utterance,
{ "Enroll-Utterance", "mrcpv2.Enroll-Utterance",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Failed_URI,
{ "Failed-URI", "mrcpv2.Failed-URI",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Failed_URI_Cause,
{ "Failed-URI-Cause", "mrcpv2.Failed-URI-Cause",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Fetch_Hint,
{ "Fetch-Hint", "mrcpv2.Fetch-Hint",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Fetch_Timeout,
{ "Fetch-Timeout", "mrcpv2.Fetch-Timeout",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Final_Silence,
{ "Final-Silence", "mrcpv2.Final-Silence",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Hotword_Max_Duration,
{ "Hotword-Max-Duration", "mrcpv2.Hotword-Max-Duration",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Hotword_Min_Duration,
{ "Hotword-Min-Duration", "mrcpv2.Hotword-Min-Duration",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Input_Type,
{ "Input-Type", "mrcpv2.Input-Type",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Input_Waveform_URI,
{ "Input-Waveform-URI", "mrcpv2.Input-Waveform-URI",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Interpret_Text,
{ "Interpret-Text", "mrcpv2.Interpret-Text",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Jump_Size,
{ "Jump-Size", "mrcpv2.Jump-Size",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Kill_On_Barge_In,
{ "Kill-On-Barge-In", "mrcpv2.Kill-On-Barge-In",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Lexicon_Search_Order,
{ "Lexicon-Search-Order", "mrcpv2.Lexicon-Search-Order",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Load_Lexicon,
{ "Load-Lexicon", "mrcpv2.Load-Lexicon",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Logging_Tag,
{ "Logging-Tag", "mrcpv2.Logging-Tag",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Max_Time,
{ "Max-Time", "mrcpv2.Max-Time",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Media_Type,
{ "Media-Type", "mrcpv2.Media-Type",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Min_Verification_Score,
{ "Min-Verification-Score", "mrcpv2.Min-Verification-Score",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_N_Best_List_Length,
{ "N-Best-List-Length", "mrcpv2.N-Best-List-Length",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_New_Audio_Channel,
{ "New-Audio-Channel", "mrcpv2.New-Audio-Channel",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_New_Phrase_ID,
{ "New-Phrase-ID", "mrcpv2.New-Phrase-ID",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_No_Input_Timeout,
{ "No-Input-Timeout", "mrcpv2.No-Input-Timeout",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Num_Max_Verification_Phrases,
{ "Num-Max-Verification-Phrases", "mrcpv2.Num-Max-Verification-Phrases",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Num_Min_Consistent_Pronunciations,
{ "Num-Min-Consistent-Pronunciations", "mrcpv2.Num-Min-Consistent-Pronunciations",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Num_Min_Verification_Phrases,
{ "Num-Min-Verification-Phrases", "mrcpv2.Num-Min-Verification-Phrases",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Personal_Grammar_URI,
{ "Personal-Grammar-URI", "mrcpv2.Personal-Grammar-URI",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Phrase_ID,
{ "Phrase-ID", "mrcpv2.Phrase-ID",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Phrase_NL,
{ "Phrase-NL", "mrcpv2.Phrase-NL",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Prosody_Contour,
{ "Prosody-Contour", "mrcpv2.Prosody-Contour",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Prosody_Duration,
{ "Prosody-Duration", "mrcpv2.Prosody-Duration",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Prosody_Pitch,
{ "Prosody-Pitch", "mrcpv2.Prosody-Pitch",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Prosody_Range,
{ "Prosody-Range", "mrcpv2.Prosody-Range",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Prosody_Rate,
{ "Prosody-Rate", "mrcpv2.Prosody-Rate",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Prosody_Volume,
{ "Prosody-Volume", "mrcpv2.Prosody-Volume",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Proxy_Sync_Id,
{ "Proxy-Sync-Id", "mrcpv2.Proxy-Sync-Id",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Recognition_Mode,
{ "Recognition-Mode", "mrcpv2.Recognition-Mode",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Recognition_Timeout,
{ "Recognition-Timeout", "mrcpv2.Recognition-Timeout",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Recognizer_Context_Block,
{ "Recognizer-Context-Block", "mrcpv2.Recognizer-Context-Block",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Record_URI,
{ "Record-URI", "mrcpv2.Record-URI",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Repository_URI,
{ "Repository-URI", "mrcpv2.Repository-URI",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Save_Best_Waveform,
{ "Save-Best-Waveform", "mrcpv2.Save-Best-Waveform",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Save_Waveform,
{ "Save-Waveform", "mrcpv2.Save-Waveform",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Sensitivity_Level,
{ "Sensitivity-Level", "mrcpv2.Sensitivity-Level",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Set_Cookie,
{ "Set-Cookie", "mrcpv2.Set-Cookie",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Speak_Length,
{ "Speak-Length", "mrcpv2.Speak-Length",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Speak_Restart,
{ "Speak-Restart", "mrcpv2.Speak-Restart",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Speaker_Profile,
{ "Speaker-Profile", "mrcpv2.Speaker-Profile",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Speech_Complete_Timeout,
{ "Speech-Complete-Timeout", "mrcpv2.Speech-Complete-Timeout",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Speech_Incomplete_Timeout,
{ "Speech-Incomplete-Timeout", "mrcpv2.Speech-Incomplete-Timeout",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Speech_Language,
{ "Speech-Language", "mrcpv2.Speech-Language",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Speech_Marker,
{ "Speech-Marker", "mrcpv2.Speech-Marker",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Speed_Vs_Accuracy,
{ "Speed-Vs-Accuracy", "mrcpv2.Speed-Vs-Accuracy",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Start_Input_Timers,
{ "Start-Input-Timers", "mrcpv2.Start-Input-Timers",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Trim_Length,
{ "Trim-Length", "mrcpv2.Trim-Length",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Vendor_Specific_Parameters,
{ "Vendor-Specific-Parameters", "mrcpv2.Vendor-Specific-Parameters",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Ver_Buffer_Utterance,
{ "Ver-Buffer-Utterance", "mrcpv2.Ver-Buffer-Utterance",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Verification_Mode,
{ "Verification-Mode", "mrcpv2.Verification-Mode",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Voice_Age,
{ "Voice-Age", "mrcpv2.Voice-Age",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Voice_Gender,
{ "Voice-Gender", "mrcpv2.Voice-Gender",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Voice_Name,
{ "Voice-Name", "mrcpv2.Voice-Name",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Voice_Variant,
{ "Voice-Variant", "mrcpv2.Voice-Variant",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Voiceprint_Exists,
{ "Voiceprint-Exists", "mrcpv2.Voiceprint-Exists",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Voiceprint_Identifier,
{ "Voiceprint-Identifier", "mrcpv2.Voiceprint-Identifier",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Waveform_URI,
{ "Waveform-URI", "mrcpv2.Waveform-URI",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
},
{ &hf_mrcpv2_Weight,
{ "Weight", "mrcpv2.Weight",
FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL },
}
};
static ei_register_info ei[] = {
{ &ei_mrcpv2_Content_Length_invalid, { "mrcpv2.Content-Length.invalid", PI_MALFORMED, PI_ERROR,
"Content Length must be a string containing an integer", EXPFILL }}
};
static int *ett[] = {
&ett_mrcpv2,
&ett_Request_Line,
&ett_Response_Line,
&ett_Event_Line,
&ett_Status_Code
};
proto_mrcpv2 = proto_register_protocol("Media Resource Control Protocol Version 2 (MRCPv2)", "MRCPv2", "mrcpv2");
proto_register_field_array(proto_mrcpv2, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_mrcpv2 = expert_register_protocol(proto_mrcpv2);
expert_register_field_array(expert_mrcpv2, ei, array_length(ei));
mrcpv2_handle = register_dissector("mrcpv2", dissect_mrcpv2_tcp, proto_mrcpv2);
}
void
proto_reg_handoff_mrcpv2(void)
{
dissector_add_uint_range_with_preference ("tcp.port", TCP_DEFAULT_RANGE, mrcpv2_handle);
}
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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