/* packet-quic.c * Routines for Quick UDP Internet Connections dissection * Copyright 2013, Alexis La Goutte * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ /* QUIC Wire Layout Specification : https://docs.google.com/document/d/1WJvyZflAO2pq77yOLbp9NsGjC1CHetAXV8I0fQe-B_U/ QUIC Crypto : https://docs.google.com/document/d/1g5nIXAIkN_Y-7XJW5K45IblHd_L2f5LTaDUDwvZ5L6g/ QUIC source code in Chromium : https://code.google.com/p/chromium/codesearch#chromium/src/net/quic/quic_utils.h&sq=package:chromium */ #include "config.h" #include #include #include void proto_register_quic(void); void proto_reg_handoff_quic(void); static int proto_quic = -1; static int hf_quic_puflags = -1; static int hf_quic_puflags_vrsn = -1; static int hf_quic_puflags_rst = -1; static int hf_quic_puflags_cid = -1; static int hf_quic_puflags_seq = -1; static int hf_quic_puflags_rsv = -1; static int hf_quic_cid = -1; static int hf_quic_version = -1; static int hf_quic_sequence = -1; static int hf_quic_prflags = -1; static int hf_quic_prflags_entropy = -1; static int hf_quic_prflags_fecg = -1; static int hf_quic_prflags_fec = -1; static int hf_quic_prflags_rsv = -1; static int hf_quic_message_authentication_hash = -1; static int hf_quic_frame = -1; static int hf_quic_frame_type = -1; static int hf_quic_frame_type_padding_length = -1; static int hf_quic_frame_type_padding = -1; static int hf_quic_frame_type_rsts_stream_id = -1; static int hf_quic_frame_type_rsts_byte_offset = -1; static int hf_quic_frame_type_rsts_error_code = -1; static int hf_quic_frame_type_cc_error_code = -1; static int hf_quic_frame_type_cc_reason_phrase_length = -1; static int hf_quic_frame_type_cc_reason_phrase = -1; static int hf_quic_frame_type_goaway_error_code = -1; static int hf_quic_frame_type_goaway_last_good_stream_id = -1; static int hf_quic_frame_type_goaway_reason_phrase_length = -1; static int hf_quic_frame_type_goaway_reason_phrase = -1; static int hf_quic_frame_type_wu_stream_id = -1; static int hf_quic_frame_type_wu_byte_offset = -1; static int hf_quic_frame_type_blocked_stream_id = -1; static int hf_quic_frame_type_sw_send_entropy = -1; static int hf_quic_frame_type_sw_least_unacked_delta = -1; static int hf_quic_frame_type_stream = -1; static int hf_quic_frame_type_stream_f = -1; static int hf_quic_frame_type_stream_d = -1; static int hf_quic_frame_type_stream_ooo = -1; static int hf_quic_frame_type_stream_ss = -1; static int hf_quic_frame_type_ack = -1; static int hf_quic_frame_type_ack_n = -1; static int hf_quic_frame_type_ack_t = -1; static int hf_quic_frame_type_ack_ll = -1; static int hf_quic_frame_type_ack_mm = -1; static int hf_quic_frame_type_ack_received_entropy = -1; static int hf_quic_frame_type_ack_largest_observed = -1; static int hf_quic_frame_type_ack_largest_observed_delta_time = -1; static int hf_quic_frame_type_ack_num_timestamp = -1; static int hf_quic_frame_type_ack_delta_largest_observed = -1; static int hf_quic_frame_type_ack_time_since_largest_observed = -1; static int hf_quic_frame_type_ack_time_since_previous_timestamp = -1; static int hf_quic_frame_type_ack_num_ranges = -1; static int hf_quic_frame_type_ack_missing_packet = -1; static int hf_quic_frame_type_ack_range_length = -1; static int hf_quic_frame_type_ack_num_revived = -1; static int hf_quic_frame_type_ack_revived_packet = -1; static int hf_quic_stream_id = -1; static int hf_quic_offset_len = -1; static int hf_quic_data_len = -1; static int hf_quic_tag = -1; static int hf_quic_tags = -1; static int hf_quic_tag_number = -1; static int hf_quic_tag_value = -1; static int hf_quic_tag_type = -1; static int hf_quic_tag_offset_end = -1; static int hf_quic_tag_length = -1; static int hf_quic_tag_sni = -1; static int hf_quic_tag_pad = -1; static int hf_quic_tag_ver = -1; static int hf_quic_tag_ccs = -1; static int hf_quic_tag_pdmd = -1; static int hf_quic_tag_uaid = -1; static int hf_quic_tag_stk = -1; static int hf_quic_tag_sno = -1; static int hf_quic_tag_prof = -1; static int hf_quic_tag_scfg = -1; static int hf_quic_tag_scfg_number = -1; static int hf_quic_tag_rrej = -1; static int hf_quic_tag_crt = -1; static int hf_quic_tag_aead = -1; static int hf_quic_tag_scid = -1; static int hf_quic_tag_pubs = -1; static int hf_quic_tag_kexs = -1; static int hf_quic_tag_obit = -1; static int hf_quic_tag_expy = -1; static int hf_quic_tag_nonc = -1; static int hf_quic_tag_mspc = -1; static int hf_quic_tag_tcid = -1; static int hf_quic_tag_srbf = -1; static int hf_quic_tag_icsl = -1; static int hf_quic_tag_scls = -1; static int hf_quic_tag_copt = -1; static int hf_quic_tag_ccrt = -1; static int hf_quic_tag_irtt = -1; static int hf_quic_tag_cfcw = -1; static int hf_quic_tag_sfcw = -1; static int hf_quic_tag_cetv = -1; static int hf_quic_tag_xlct = -1; static int hf_quic_tag_nonp = -1; static int hf_quic_tag_unknown = -1; static int hf_quic_padding = -1; static int hf_quic_payload = -1; static guint g_quic_port = 80; static guint g_quics_port = 443; static gint ett_quic = -1; static gint ett_quic_puflags = -1; static gint ett_quic_prflags = -1; static gint ett_quic_ft = -1; static gint ett_quic_ftflags = -1; static gint ett_quic_tag_value = -1; static expert_field ei_quic_tag_undecoded = EI_INIT; static expert_field ei_quic_tag_length = EI_INIT; static expert_field ei_quic_tag_unknown = EI_INIT; #define QUIC_MIN_LENGTH 3 /**************************************************************************/ /* Public Flags */ /**************************************************************************/ #define PUFLAGS_VRSN 0x01 #define PUFLAGS_RST 0x02 #define PUFLAGS_CID 0x0C #define PUFLAGS_SEQ 0x30 #define PUFLAGS_RSV 0xC0 static const value_string puflags_cid_vals[] = { { 0, "0 Byte" }, { 1, "1 Bytes" }, { 2, "4 Bytes" }, { 3, "8 Bytes" }, { 0, NULL } }; static const value_string puflags_seq_vals[] = { { 0, "1 Byte" }, { 1, "2 Bytes" }, { 2, "4 Bytes" }, { 3, "6 Bytes" }, { 0, NULL } }; /**************************************************************************/ /* Private Flags */ /**************************************************************************/ #define PRFLAGS_ENTROPY 0x01 #define PRFLAGS_FECG 0x02 #define PRFLAGS_FEC 0x04 #define PRFLAGS_RSV 0xF8 /**************************************************************************/ /* Frame Type Regular */ /**************************************************************************/ #define FT_PADDING 0x00 #define FT_RST_STREAM 0x01 #define FT_CONNECTION_CLOSE 0x02 #define FT_GOAWAY 0x03 #define FT_WINDOW_UPDATE 0x04 #define FT_BLOCKED 0x05 #define FT_STOP_WAITING 0x06 #define FT_PING 0x07 /**************************************************************************/ /* Frame Type Special */ /**************************************************************************/ #define FTFLAGS_SPECIAL 0xE0 #define FTFLAGS_STREAM 0x80 #define FTFLAGS_STREAM_F 0x40 #define FTFLAGS_STREAM_D 0x20 #define FTFLAGS_STREAM_OOO 0x1C #define FTFLAGS_STREAM_SS 0x03 #define FTFLAGS_ACK 0x40 #define FTFLAGS_ACK_N 0x20 #define FTFLAGS_ACK_T 0x10 #define FTFLAGS_ACK_LL 0x0C #define FTFLAGS_ACK_MM 0x03 static const range_string frame_type_vals[] = { { 0,0, "PADDING" }, { 1,1, "RST_STREAM" }, { 2,2, "CONNECTION_CLOSE" }, { 3,3, "GOAWAY" }, { 4,4, "WINDOW_UPDATE" }, { 5,5, "BLOCKED" }, { 6,6, "STOP_WAITING" }, { 7,7, "PING" }, { 8,31, "Unknown" }, { 32,63, "CONGESTION_FEEDBACK (Special Frame Type)" }, { 64,127, "ACK (Special Frame Type)" }, { 128,256, "STREAM (Special Frame Type)" }, { 0,0, NULL } }; static const value_string len_offset_vals[] = { { 0, "0 Byte" }, { 1, "2 Bytes" }, { 2, "3 Bytes" }, { 3, "4 Bytes" }, { 4, "5 Bytes" }, { 5, "6 Bytes" }, { 6, "7 Bytes" }, { 7, "8 Bytes" }, { 0, NULL } }; static const value_string len_stream_vals[] = { { 0, "1 Byte" }, { 1, "2 Bytes" }, { 2, "3 Bytes" }, { 3, "4 Bytes" }, { 0, NULL } }; static const true_false_string len_data_vals = { "2 Bytes", "0 Byte" }; static const value_string len_largest_observed_vals[] = { { 0, "1 Byte" }, { 1, "2 Bytes" }, { 2, "4 Bytes" }, { 3, "6 Bytes" }, { 0, NULL } }; static const value_string len_missing_packet_vals[] = { { 0, "1 Byte" }, { 1, "2 Bytes" }, { 2, "4 Bytes" }, { 3, "6 Bytes" }, { 0, NULL } }; /**************************************************************************/ /* Message tag */ /**************************************************************************/ #define MTAG_CHLO 0x43484C4F #define MTAG_SHLO 0x53484C4F #define MTAG_REJ 0X52454A00 static const value_string message_tag_vals[] = { { MTAG_CHLO, "Client Hello" }, { MTAG_SHLO, "Server Hello" }, { MTAG_REJ, "Rejection" }, { 0, NULL } }; /**************************************************************************/ /* Tag */ /**************************************************************************/ /* See https://chromium.googlesource.com/chromium/src.git/+/master/net/quic/crypto/crypto_protocol.h */ #define TAG_PAD 0x50414400 #define TAG_SNI 0x534E4900 #define TAG_VER 0x56455200 #define TAG_CCS 0x43435300 #define TAG_UAID 0x55414944 #define TAG_PDMD 0x50444d44 #define TAG_STK 0x53544b00 #define TAG_SNO 0x534E4F00 #define TAG_PROF 0x50524F46 #define TAG_SCFG 0x53434647 #define TAG_RREJ 0x5252454A #define TAG_CRT 0x435254FF #define TAG_AEAD 0x41454144 #define TAG_SCID 0x53434944 #define TAG_PUBS 0x50554253 #define TAG_KEXS 0x4B455853 #define TAG_OBIT 0x4F424954 #define TAG_EXPY 0x45585059 #define TAG_NONC 0x4E4F4E43 #define TAG_MSPC 0x4D535043 #define TAG_TCID 0x54434944 #define TAG_SRBF 0x53524246 #define TAG_ICSL 0x4943534C #define TAG_SCLS 0x53434C53 #define TAG_COPT 0x434F5054 #define TAG_CCRT 0x43435254 #define TAG_IRTT 0x49525454 #define TAG_CFCW 0x43464357 #define TAG_SFCW 0x53464357 #define TAG_CETV 0x43455456 #define TAG_XLCT 0x584C4354 #define TAG_NONP 0x4E4F4E50 static const value_string tag_vals[] = { { TAG_PAD, "Padding" }, { TAG_SNI, "Server Name Indication" }, { TAG_VER, "Version" }, { TAG_CCS, "Common Certificate Sets" }, { TAG_UAID, "Client's User Agent ID" }, { TAG_PDMD, "Proof Demand" }, { TAG_STK, "Source Address Token" }, { TAG_SNO, "Server nonce" }, { TAG_PROF, "Proof (Signature)" }, { TAG_SCFG, "Server Config" }, { TAG_RREJ, "Reasons for server sending" }, { TAG_CRT, "Certificate chain" }, { TAG_AEAD, "Authenticated encryption algorithms" }, { TAG_SCID, "Server config ID" }, { TAG_PUBS, "Public value" }, { TAG_KEXS, "Key exchange algorithms" }, { TAG_OBIT, "Server Orbit" }, { TAG_EXPY, "Expiry" }, { TAG_NONC, "Client Nonce" }, { TAG_MSPC, "Max streams per connection" }, { TAG_TCID, "Connection ID truncation" }, { TAG_SRBF, "Socket receive buffer" }, { TAG_ICSL, "Idle connection state" }, { TAG_SCLS, "Silently close on timeout" }, { TAG_COPT, "Connection options" }, { TAG_CCRT, "Cached certificates" }, { TAG_IRTT, "Estimated initial RTT" }, { TAG_CFCW, "Initial session/connection" }, { TAG_SFCW, "Initial stream flow control" }, { TAG_CETV, "Client encrypted tag-value" }, { TAG_XLCT, "Expected leaf certificate" }, { TAG_NONP, "Client Proof Nonce" }, { 0, NULL } }; /**************************************************************************/ /* AEAD Tag */ /**************************************************************************/ #define AEAD_AESG 0x41455347 #define AEAD_S20P 0x53323050 #define AEAD_CC12 0x43433132 static const value_string tag_aead_vals[] = { { AEAD_AESG, "AES-GCM with a 12-byte tag and IV" }, { AEAD_S20P, "Salsa20 with Poly1305" }, { AEAD_CC12, "Salsa20 with Poly1305" }, { 0, NULL } }; /**************************************************************************/ /* KEXS Tag */ /**************************************************************************/ #define KEXS_C255 0x43323535 #define KEXS_P256 0x50323536 static const value_string tag_kexs_vals[] = { { KEXS_C255, "Curve25519" }, { KEXS_P256, "P-256" }, { 0, NULL } }; /**************************************************************************/ /* Error Code */ /* See src/net/quic/quic_protocol.h from Chromium Source */ /**************************************************************************/ enum QuicErrorCode { QUIC_NO_ERROR = 0, /* Connection has reached an invalid state. */ QUIC_INTERNAL_ERROR = 1, /* There were data frames after the a fin or reset. */ QUIC_STREAM_DATA_AFTER_TERMINATION = 2, /* Control frame is malformed. */ QUIC_INVALID_PACKET_HEADER = 3, /* Frame data is malformed. */ QUIC_INVALID_FRAME_DATA = 4, /* The packet contained no payload. */ QUIC_MISSING_PAYLOAD = 48, /* FEC data is malformed. */ QUIC_INVALID_FEC_DATA = 5, /* STREAM frame data is malformed. */ QUIC_INVALID_STREAM_DATA = 46, /* STREAM frame data is not encrypted. */ QUIC_UNENCRYPTED_STREAM_DATA = 61, /* RST_STREAM frame data is malformed. */ QUIC_INVALID_RST_STREAM_DATA = 6, /* CONNECTION_CLOSE frame data is malformed. */ QUIC_INVALID_CONNECTION_CLOSE_DATA = 7, /* GOAWAY frame data is malformed. */ QUIC_INVALID_GOAWAY_DATA = 8, /* WINDOW_UPDATE frame data is malformed. */ QUIC_INVALID_WINDOW_UPDATE_DATA = 57, /* BLOCKED frame data is malformed. */ QUIC_INVALID_BLOCKED_DATA = 58, /* STOP_WAITING frame data is malformed. */ QUIC_INVALID_STOP_WAITING_DATA = 60, /* ACK frame data is malformed. */ QUIC_INVALID_ACK_DATA = 9, /* deprecated: */ QUIC_INVALID_CONGESTION_FEEDBACK_DATA = 47, /* Version negotiation packet is malformed. */ QUIC_INVALID_VERSION_NEGOTIATION_PACKET = 10, /* Public RST packet is malformed. */ QUIC_INVALID_PUBLIC_RST_PACKET = 11, /* There was an error decrypting. */ QUIC_DECRYPTION_FAILURE = 12, /* There was an error encrypting. */ QUIC_ENCRYPTION_FAILURE = 13, /* The packet exceeded kMaxPacketSize. */ QUIC_PACKET_TOO_LARGE = 14, /* Data was sent for a stream which did not exist. */ QUIC_PACKET_FOR_NONEXISTENT_STREAM = 15, /* The peer is going away. May be a client or server. */ QUIC_PEER_GOING_AWAY = 16, /* A stream ID was invalid. */ QUIC_INVALID_STREAM_ID = 17, /* A priority was invalid. */ QUIC_INVALID_PRIORITY = 49, /* Too many streams already open. */ QUIC_TOO_MANY_OPEN_STREAMS = 18, /* The peer must send a FIN/RST for each stream, and has not been doing so. */ QUIC_TOO_MANY_UNFINISHED_STREAMS = 66, /* Received public reset for this connection. */ QUIC_PUBLIC_RESET = 19, /* Invalid protocol version. */ QUIC_INVALID_VERSION = 20, /* deprecated: */ QUIC_STREAM_RST_BEFORE_HEADERS_DECOMPRESSED = 21, /* The Header ID for a stream was too far from the previous. */ QUIC_INVALID_HEADER_ID = 22, /* Negotiable parameter received during handshake had invalid value. */ QUIC_INVALID_NEGOTIATED_VALUE = 23, /* There was an error decompressing data. */ QUIC_DECOMPRESSION_FAILURE = 24, /* We hit our prenegotiated (or default) timeout */ QUIC_CONNECTION_TIMED_OUT = 25, /* We hit our overall connection timeout */ QUIC_CONNECTION_OVERALL_TIMED_OUT = 67, /* There was an error encountered migrating addresses */ QUIC_ERROR_MIGRATING_ADDRESS = 26, /* There was an error while writing to the socket. */ QUIC_PACKET_WRITE_ERROR = 27, /* There was an error while reading from the socket. */ QUIC_PACKET_READ_ERROR = 51, /* We received a STREAM_FRAME with no data and no fin flag set. */ QUIC_INVALID_STREAM_FRAME = 50, /* We received invalid data on the headers stream. */ QUIC_INVALID_HEADERS_STREAM_DATA = 56, /* The peer received too much data, violating flow control. */ QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA = 59, /* The peer sent too much data, violating flow control. */ QUIC_FLOW_CONTROL_SENT_TOO_MUCH_DATA = 63, /* The peer received an invalid flow control window. */ QUIC_FLOW_CONTROL_INVALID_WINDOW = 64, /* The connection has been IP pooled into an existing connection. */ QUIC_CONNECTION_IP_POOLED = 62, /* The connection has too many outstanding sent packets. */ QUIC_TOO_MANY_OUTSTANDING_SENT_PACKETS = 68, /* The connection has too many outstanding received packets. */ QUIC_TOO_MANY_OUTSTANDING_RECEIVED_PACKETS = 69, /* The quic connection job to load server config is cancelled. */ QUIC_CONNECTION_CANCELLED = 70, /* Disabled QUIC because of high packet loss rate. */ QUIC_BAD_PACKET_LOSS_RATE = 71, /* Disabled QUIC because of too many PUBLIC_RESETs post handshake. */ QUIC_PUBLIC_RESETS_POST_HANDSHAKE = 73, /* Disabled QUIC because of too many timeouts with streams open. */ QUIC_TIMEOUTS_WITH_OPEN_STREAMS = 74, /* Closed because we failed to serialize a packet. */ QUIC_FAILED_TO_SERIALIZE_PACKET = 75, /* Crypto errors. */ /* Hanshake failed. */ QUIC_HANDSHAKE_FAILED = 28, /* Handshake message contained out of order tags. */ QUIC_CRYPTO_TAGS_OUT_OF_ORDER = 29, /* Handshake message contained too many entries. */ QUIC_CRYPTO_TOO_MANY_ENTRIES = 30, /* Handshake message contained an invalid value length. */ QUIC_CRYPTO_INVALID_VALUE_LENGTH = 31, /* A crypto message was received after the handshake was complete. */ QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE = 32, /* A crypto message was received with an illegal message tag. */ QUIC_INVALID_CRYPTO_MESSAGE_TYPE = 33, /* A crypto message was received with an illegal parameter. */ QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER = 34, /* An invalid channel id signature was supplied. */ QUIC_INVALID_CHANNEL_ID_SIGNATURE = 52, /* A crypto message was received with a mandatory parameter missing. */ QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND = 35, /* A crypto message was received with a parameter that has no overlap with the local parameter. */ QUIC_CRYPTO_MESSAGE_PARAMETER_NO_OVERLAP = 36, /* A crypto message was received that contained a parameter with too few values. */ QUIC_CRYPTO_MESSAGE_INDEX_NOT_FOUND = 37, /* An internal error occured in crypto processing. */ QUIC_CRYPTO_INTERNAL_ERROR = 38, /* A crypto handshake message specified an unsupported version. */ QUIC_CRYPTO_VERSION_NOT_SUPPORTED = 39, /* A crypto handshake message resulted in a stateless reject. */ QUIC_CRYPTO_HANDSHAKE_STATELESS_REJECT = 72, /* There was no intersection between the crypto primitives supported by the peer and ourselves. */ QUIC_CRYPTO_NO_SUPPORT = 40, /* The server rejected our client hello messages too many times. */ QUIC_CRYPTO_TOO_MANY_REJECTS = 41, /* The client rejected the server's certificate chain or signature. */ QUIC_PROOF_INVALID = 42, /* A crypto message was received with a duplicate tag. */ QUIC_CRYPTO_DUPLICATE_TAG = 43, /* A crypto message was received with the wrong encryption level (i.e. it should have been encrypted but was not. ) */ QUIC_CRYPTO_ENCRYPTION_LEVEL_INCORRECT = 44, /* The server config for a server has expired. */ QUIC_CRYPTO_SERVER_CONFIG_EXPIRED = 45, /* We failed to setup the symmetric keys for a connection. */ QUIC_CRYPTO_SYMMETRIC_KEY_SETUP_FAILED = 53, /* A handshake message arrived, but we are still validating the previous handshake message. */ QUIC_CRYPTO_MESSAGE_WHILE_VALIDATING_CLIENT_HELLO = 54, /* A server config update arrived before the handshake is complete. */ QUIC_CRYPTO_UPDATE_BEFORE_HANDSHAKE_COMPLETE = 65, /* This connection involved a version negotiation which appears to have been tampered with. */ QUIC_VERSION_NEGOTIATION_MISMATCH = 55, /* No error. Used as bound while iterating. */ QUIC_LAST_ERROR = 76 }; static const value_string error_code_vals[] = { { QUIC_NO_ERROR, "There was no error" }, { QUIC_INTERNAL_ERROR, "Connection has reached an invalid state" }, { QUIC_STREAM_DATA_AFTER_TERMINATION, "There were data frames after the a fin or reset" }, { QUIC_INVALID_PACKET_HEADER, "Control frame is malformed" }, { QUIC_INVALID_FRAME_DATA, "Frame data is malformed" }, { QUIC_INVALID_FEC_DATA, "FEC data is malformed" }, { QUIC_INVALID_RST_STREAM_DATA, "RST_STREAM frame data is malformed" }, { QUIC_INVALID_CONNECTION_CLOSE_DATA, "CONNECTION_CLOSE frame data is malformed" }, { QUIC_INVALID_GOAWAY_DATA, "GOAWAY frame data is malformed" }, { QUIC_INVALID_ACK_DATA, "ACK frame data is malformed" }, { QUIC_INVALID_VERSION_NEGOTIATION_PACKET, "Version negotiation packet is malformed" }, { QUIC_INVALID_PUBLIC_RST_PACKET, "Public RST packet is malformed" }, { QUIC_DECRYPTION_FAILURE, "There was an error decrypting" }, { QUIC_ENCRYPTION_FAILURE, "There was an error encrypting" }, { QUIC_PACKET_TOO_LARGE, "The packet exceeded kMaxPacketSize" }, { QUIC_PACKET_FOR_NONEXISTENT_STREAM, "Data was sent for a stream which did not exist" }, { QUIC_PEER_GOING_AWAY, "The peer is going away. May be a client or server" }, { QUIC_INVALID_STREAM_ID, "A stream ID was invalid" }, { QUIC_TOO_MANY_OPEN_STREAMS, "Too many streams already open" }, { QUIC_PUBLIC_RESET, "Received public reset for this connection" }, { QUIC_INVALID_VERSION, "Invalid protocol version" }, { QUIC_STREAM_RST_BEFORE_HEADERS_DECOMPRESSED, "Stream RST before Headers decompressed (Deprecated)" }, { QUIC_INVALID_HEADER_ID, "The Header ID for a stream was too far from the previous" }, { QUIC_INVALID_NEGOTIATED_VALUE, "Negotiable parameter received during handshake had invalid value" }, { QUIC_DECOMPRESSION_FAILURE, "There was an error decompressing data" }, { QUIC_CONNECTION_TIMED_OUT, "We hit our prenegotiated (or default) timeout" }, { QUIC_ERROR_MIGRATING_ADDRESS, "There was an error encountered migrating addresses" }, { QUIC_PACKET_WRITE_ERROR, "There was an error while writing to the socket" }, { QUIC_HANDSHAKE_FAILED, "Hanshake failed" }, { QUIC_CRYPTO_TAGS_OUT_OF_ORDER, "Handshake message contained out of order tags" }, { QUIC_CRYPTO_TOO_MANY_ENTRIES, "Handshake message contained too many entries" }, { QUIC_CRYPTO_INVALID_VALUE_LENGTH, "Handshake message contained an invalid value length" }, { QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE, "A crypto message was received after the handshake was complete" }, { QUIC_INVALID_CRYPTO_MESSAGE_TYPE, "A crypto message was received with an illegal message tag" }, { QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER, "A crypto message was received with an illegal parameter" }, { QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND, "A crypto message was received with a mandatory parameter missing" }, { QUIC_CRYPTO_MESSAGE_PARAMETER_NO_OVERLAP, "A crypto message was received with a parameter that has no overlap with the local parameter" }, { QUIC_CRYPTO_MESSAGE_INDEX_NOT_FOUND, "A crypto message was received that contained a parameter with too few values" }, { QUIC_CRYPTO_INTERNAL_ERROR, "An internal error occured in crypto processing" }, { QUIC_CRYPTO_VERSION_NOT_SUPPORTED, "A crypto handshake message specified an unsupported version" }, { QUIC_CRYPTO_NO_SUPPORT, "There was no intersection between the crypto primitives supported by the peer and ourselves" }, { QUIC_CRYPTO_TOO_MANY_REJECTS, "The server rejected our client hello messages too many times" }, { QUIC_PROOF_INVALID, "The client rejected the server's certificate chain or signature" }, { QUIC_CRYPTO_DUPLICATE_TAG, "A crypto message was received with a duplicate tag" }, { QUIC_CRYPTO_ENCRYPTION_LEVEL_INCORRECT, "A crypto message was received with the wrong encryption level (i.e. it should have been encrypted but was not" }, { QUIC_CRYPTO_SERVER_CONFIG_EXPIRED, "The server config for a server has expired" }, { QUIC_INVALID_STREAM_DATA, "STREAM frame data is malformed" }, { QUIC_INVALID_CONGESTION_FEEDBACK_DATA, "Invalid congestion Feedback data (Deprecated)" }, { QUIC_MISSING_PAYLOAD, "The packet contained no payload" }, { QUIC_INVALID_PRIORITY, "A priority was invalid" }, { QUIC_INVALID_STREAM_FRAME, "We received a STREAM_FRAME with no data and no fin flag set" }, { QUIC_PACKET_READ_ERROR, "There was an error while reading from the socket" }, { QUIC_INVALID_CHANNEL_ID_SIGNATURE, "An invalid channel id signature was supplied" }, { QUIC_CRYPTO_SYMMETRIC_KEY_SETUP_FAILED, "We failed to setup the symmetric keys for a connection" }, { QUIC_CRYPTO_MESSAGE_WHILE_VALIDATING_CLIENT_HELLO, "A handshake message arrived, but we are still validating the previous handshake message" }, { QUIC_VERSION_NEGOTIATION_MISMATCH, "This connection involved a version negotiation which appears to have been tampered with" }, { QUIC_INVALID_HEADERS_STREAM_DATA, "We received invalid data on the headers stream" }, { QUIC_INVALID_WINDOW_UPDATE_DATA, "WINDOW_UPDATE frame data is malformed" }, { QUIC_INVALID_BLOCKED_DATA, "BLOCKED frame data is malformed" }, { QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, "The peer received too much data, violating flow control" }, { QUIC_INVALID_STOP_WAITING_DATA, "STOP_WAITING frame data is malformed" }, { QUIC_UNENCRYPTED_STREAM_DATA, "STREAM frame data is not encrypted" }, { QUIC_CONNECTION_IP_POOLED, "The connection has been IP pooled into an existing connection" }, { QUIC_FLOW_CONTROL_SENT_TOO_MUCH_DATA, "The peer sent too much data, violating flow control" }, { QUIC_FLOW_CONTROL_INVALID_WINDOW, "The peer received an invalid flow control window" }, { QUIC_CRYPTO_UPDATE_BEFORE_HANDSHAKE_COMPLETE, "A server config update arrived before the handshake is complete" }, { QUIC_TOO_MANY_UNFINISHED_STREAMS, "The peer must send a FIN/RST for each stream, and has not been doing so" }, { QUIC_CONNECTION_OVERALL_TIMED_OUT, "We hit our overall connection timeout" }, { QUIC_TOO_MANY_OUTSTANDING_SENT_PACKETS, "The connection has too many outstanding sent packets" }, { QUIC_TOO_MANY_OUTSTANDING_RECEIVED_PACKETS, "The connection has too many outstanding received packets" }, { QUIC_CONNECTION_CANCELLED, "The quic connection job to load server config is cancelled" }, { QUIC_BAD_PACKET_LOSS_RATE, "Disabled QUIC because of high packet loss rate" }, { QUIC_CRYPTO_HANDSHAKE_STATELESS_REJECT, "A crypto handshake message resulted in a stateless reject" }, { QUIC_PUBLIC_RESETS_POST_HANDSHAKE, "Disabled QUIC because of too many PUBLIC_RESETs post handshake" }, { QUIC_TIMEOUTS_WITH_OPEN_STREAMS, "Disabled QUIC because of too many timeouts with streams open" }, { QUIC_FAILED_TO_SERIALIZE_PACKET, "Closed because we failed to serialize a packet" }, { QUIC_LAST_ERROR, "No error. Used as bound while iterating" }, { 0, NULL } }; static value_string_ext error_code_vals_ext = VALUE_STRING_EXT_INIT(error_code_vals); static guint32 get_len_offset(guint8 frame_type){ guint32 len; switch((frame_type & FTFLAGS_STREAM_OOO) >> 2){ case 0: len = 0; break; case 1: len = 2; break; case 2: len = 3; break; case 3: len = 4; break; case 4: len = 5; break; case 5: len = 6; break; case 6: len = 7; break; case 7: len = 8; break; default: /* No possible but always return value... */ len = 0; break; } return len; } static guint32 get_len_stream(guint8 frame_type){ guint32 len; switch(frame_type & FTFLAGS_STREAM_SS){ case 0: len = 1; break; case 1: len = 2; break; case 2: len = 3; break; case 3: len = 4; break; default: /* No possible but always return value... */ len = 1; break; } return len; } static guint32 get_len_largest_observed(guint8 frame_type){ guint32 len; switch((frame_type & FTFLAGS_ACK_LL) >> 2){ case 0: len = 1; break; case 1: len = 2; break; case 2: len = 4; break; case 3: len = 6; break; default: /* No possible but always return value... */ len = 1; break; } return len; } static guint32 get_len_missing_packet(guint8 frame_type){ guint32 len; switch(frame_type & FTFLAGS_ACK_MM){ case 0: len = 1; break; case 1: len = 2; break; case 2: len = 4; break; case 3: len = 6; break; default: /* No possible but always return value... */ len = 1; break; } return len; } static gboolean is_quic_handshake(tvbuff_t *tvb, guint offset, guint16 len_seq){ guint8 frame_type; guint8 num_ranges, num_revived, num_timestamp; guint32 len_stream = 0, len_offset = 0, len_data = 0, len_largest_observed = 1, len_missing_packet = 1; guint32 message_tag; if(tvb_captured_length_remaining(tvb, offset) <= 13){ return FALSE; } /* Message Authentication Hash */ offset += 12; /* Private Flags */ offset += 1; while(tvb_reported_length_remaining(tvb, offset) > 0){ if (tvb_captured_length_remaining(tvb, offset) <= 1){ return FALSE; } /* Frame type */ frame_type = tvb_get_guint8(tvb, offset); if((frame_type & FTFLAGS_SPECIAL) == 0){ offset += 1; switch(frame_type){ case FT_PADDING: return FALSE; /* Pad on rest of packet.. */ break; case FT_RST_STREAM: /* Stream ID */ offset += 4; /* Byte Offset */ offset += 8; /* Error Code */ offset += 4; break; case FT_CONNECTION_CLOSE:{ guint16 len_reason; /* Error Code */ offset += 4; /* Reason Phrase Length */ if (tvb_captured_length_remaining(tvb, offset) <= 2){ return FALSE; } len_reason = tvb_get_ntohs(tvb, offset); offset += 2; /* Reason Phrase */ offset += len_reason; } break; case FT_GOAWAY:{ guint16 len_reason; /* Error Code */ offset += 4; /* Last Good Stream ID */ offset += 4; /* Reason Phrase Length */ if (tvb_captured_length_remaining(tvb, offset) <= 2){ return FALSE; } len_reason = tvb_get_ntohs(tvb, offset); offset += 2; /* Reason Phrase */ offset += len_reason; } break; case FT_WINDOW_UPDATE: /* Stream ID */ offset += 4; /* Byte Offset */ offset += 8; break; case FT_BLOCKED: /* Stream ID */ offset += 4; break; case FT_STOP_WAITING: /* Send Entropy */ offset += 1; /* Least Unacked Delta */ offset += len_seq; break; case FT_PING: /* No Payload */ default: /* No default */ break; } } else { /* Special Frame Type */ if(frame_type & FTFLAGS_STREAM){ /* Stream */ if(frame_type & FTFLAGS_STREAM_D){ len_data = 2; } len_offset = get_len_offset(frame_type); len_stream = get_len_stream(frame_type); /* Frame Type */ offset += 1; /* Stream */ offset += len_stream; /* Offset */ offset += len_offset; /* Data length */ offset += len_data; if (tvb_captured_length_remaining(tvb, offset) <= 4){ return FALSE; } /* Check if the Message Tag is CHLO (Client Hello) or SHLO (Server Hello) or REJ (Rejection) */ message_tag = tvb_get_ntohl(tvb, offset); if (message_tag == MTAG_CHLO|| message_tag == MTAG_SHLO || message_tag == MTAG_REJ) { return TRUE; } } else if (frame_type & FTFLAGS_ACK) { /* ACK Flags */ len_largest_observed = get_len_largest_observed(frame_type); len_missing_packet = get_len_missing_packet(frame_type); /* Frame Type */ offset += 1; /* Received Entropy */ offset += 1; /* Largest Observed */ offset += len_largest_observed; /* Largest Observed Delta Time */ offset += 2; /* Num Timestamp */ if (tvb_captured_length_remaining(tvb, offset) <= 1){ return FALSE; } num_timestamp = tvb_get_guint8(tvb, offset); offset += 1; if(num_timestamp > 0){ /* Delta Largest Observed */ offset += 1; /* Time Since Previous Timestamp */ offset += 4; /* Num Timestamp (-1)x (Delta Largest Observed + Time Since Largest Observed) */ offset += (num_timestamp - 1)*(1+2); } if(frame_type & FTFLAGS_ACK_N){ /* Num Ranges */ if (tvb_captured_length_remaining(tvb, offset) <= 1){ return FALSE; } num_ranges = tvb_get_guint8(tvb, offset); offset += 1; /* Num Range x (Missing Packet + Range Length) */ offset += num_ranges*(len_missing_packet+1); /* Num Revived */ if (tvb_captured_length_remaining(tvb, offset) <= 1){ return FALSE; } num_revived = tvb_get_guint8(tvb, offset); offset += 1; /* Num Revived x Length Largest Observed */ offset += num_revived*len_largest_observed; } } else { /* Other Special Frame type */ offset += 1; } } } return FALSE; } static guint32 dissect_quic_tag(tvbuff_t *tvb, packet_info *pinfo, proto_tree *quic_tree, guint offset, guint32 tag_number){ guint32 tag_offset_start = offset + tag_number*4*2; guint32 tag_offset = 0, total_tag_len = 0; gint32 tag_len; while(tag_number){ proto_tree *tag_tree, *ti_len, *ti_tag, *ti_type; guint32 offset_end, tag; ti_tag = proto_tree_add_item(quic_tree, hf_quic_tags, tvb, offset, 8, ENC_NA); tag_tree = proto_item_add_subtree(ti_tag, ett_quic_tag_value); ti_type = proto_tree_add_item(tag_tree, hf_quic_tag_type, tvb, offset, 4, ENC_ASCII|ENC_NA); tag = tvb_get_ntohl(tvb, offset); proto_item_append_text(ti_type, " (%s)", val_to_str(tag, tag_vals, "Unknown")); proto_item_append_text(ti_tag, ": %s (%s)", tvb_get_string_enc(wmem_packet_scope(), tvb, offset, 4, ENC_ASCII|ENC_NA), val_to_str(tag, tag_vals, "Unknown")); offset += 4; proto_tree_add_item(tag_tree, hf_quic_tag_offset_end, tvb, offset, 4, ENC_LITTLE_ENDIAN); offset_end = tvb_get_letohl(tvb, offset); tag_len = offset_end - tag_offset; total_tag_len += tag_len; ti_len = proto_tree_add_uint(tag_tree, hf_quic_tag_length, tvb, offset, 4, tag_len); proto_item_append_text(ti_tag, " (l=%u)", tag_len); PROTO_ITEM_SET_GENERATED(ti_len); offset += 4; /* Fix issue with CRT.. (Fragmentation ?) */ if( tag_len >= tvb_reported_length_remaining(tvb, tag_offset_start + tag_offset)){ tag_len = tvb_reported_length_remaining(tvb, tag_offset_start + tag_offset); expert_add_info(pinfo, ti_len, &ei_quic_tag_length); } proto_tree_add_item(tag_tree, hf_quic_tag_value, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA); switch(tag){ case TAG_PAD: proto_tree_add_item(tag_tree, hf_quic_tag_pad, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_SNI: proto_tree_add_item(tag_tree, hf_quic_tag_sni, tvb, tag_offset_start + tag_offset, tag_len, ENC_ASCII|ENC_NA); proto_item_append_text(ti_tag, ": %s", tvb_get_string_enc(wmem_packet_scope(), tvb, tag_offset_start + tag_offset, tag_len, ENC_ASCII|ENC_NA)); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_VER: proto_tree_add_item(tag_tree, hf_quic_tag_ver, tvb, tag_offset_start + tag_offset, 4, ENC_ASCII|ENC_NA); proto_item_append_text(ti_tag, " %s", tvb_get_string_enc(wmem_packet_scope(), tvb, tag_offset_start + tag_offset, 4, ENC_ASCII|ENC_NA)); tag_offset += 4; tag_len -= 4; break; case TAG_CCS: while(tag_len > 0){ proto_tree_add_item(tag_tree, hf_quic_tag_ccs, tvb, tag_offset_start + tag_offset, 8, ENC_NA); tag_offset += 8; tag_len -= 8; } break; case TAG_PDMD: proto_tree_add_item(tag_tree, hf_quic_tag_pdmd, tvb, tag_offset_start + tag_offset, tag_len, ENC_ASCII|ENC_NA); proto_item_append_text(ti_tag, ": %s", tvb_get_string_enc(wmem_packet_scope(), tvb, tag_offset_start + tag_offset, tag_len, ENC_ASCII|ENC_NA)); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_UAID: proto_tree_add_item(tag_tree, hf_quic_tag_uaid, tvb, tag_offset_start + tag_offset, tag_len, ENC_ASCII|ENC_NA); proto_item_append_text(ti_tag, ": %s", tvb_get_string_enc(wmem_packet_scope(), tvb, tag_offset_start + tag_offset, tag_len, ENC_ASCII|ENC_NA)); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_STK: proto_tree_add_item(tag_tree, hf_quic_tag_stk, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_SNO: proto_tree_add_item(tag_tree, hf_quic_tag_sno, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_PROF: proto_tree_add_item(tag_tree, hf_quic_tag_prof, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_SCFG:{ guint32 scfg_tag_number; proto_tree_add_item(tag_tree, hf_quic_tag_scfg, tvb, tag_offset_start + tag_offset, 4, ENC_ASCII|ENC_NA); tag_offset += 4; tag_len -= 4; proto_tree_add_item(tag_tree, hf_quic_tag_scfg_number, tvb, tag_offset_start + tag_offset, 4, ENC_LITTLE_ENDIAN); scfg_tag_number = tvb_get_letohl(tvb, tag_offset_start + tag_offset); tag_offset += 4; tag_len -= 4; dissect_quic_tag(tvb, pinfo, tag_tree, tag_offset_start + tag_offset, scfg_tag_number); tag_offset += tag_len; tag_len -= tag_len; } break; case TAG_RREJ: proto_tree_add_item(tag_tree, hf_quic_tag_rrej, tvb, tag_offset_start + tag_offset, 4, ENC_LITTLE_ENDIAN); proto_item_append_text(ti_tag, ": Code %u", tvb_get_letohl(tvb, tag_offset_start + tag_offset)); tag_offset += 4; tag_len -= 4; break; case TAG_CRT: proto_tree_add_item(tag_tree, hf_quic_tag_crt, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_AEAD: while(tag_len > 0){ proto_tree *ti_aead; ti_aead = proto_tree_add_item(tag_tree, hf_quic_tag_aead, tvb, tag_offset_start + tag_offset, 4, ENC_ASCII|ENC_NA); proto_item_append_text(ti_aead, " (%s)", val_to_str(tvb_get_ntohl(tvb, tag_offset_start + tag_offset), tag_aead_vals, "Unknown")); proto_item_append_text(ti_tag, ", %s", val_to_str(tvb_get_ntohl(tvb, tag_offset_start + tag_offset), tag_aead_vals, "Unknown")); tag_offset += 4; tag_len -= 4; } break; case TAG_SCID: proto_tree_add_item(tag_tree, hf_quic_tag_scid, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_PUBS: /*TODO FIX: 24 Length + Pubs key?.. ! */ proto_tree_add_item(tag_tree, hf_quic_tag_pubs, tvb, tag_offset_start + tag_offset, 2, ENC_LITTLE_ENDIAN); tag_offset +=2; tag_len -= 2; while(tag_len > 0){ proto_tree_add_item(tag_tree, hf_quic_tag_pubs, tvb, tag_offset_start + tag_offset, 3, ENC_LITTLE_ENDIAN); tag_offset += 3; tag_len -= 3; } break; case TAG_KEXS: while(tag_len > 0){ proto_tree *ti_kexs; ti_kexs = proto_tree_add_item(tag_tree, hf_quic_tag_kexs, tvb, tag_offset_start + tag_offset, 4, ENC_ASCII|ENC_NA); proto_item_append_text(ti_kexs, " (%s)", val_to_str(tvb_get_ntohl(tvb, tag_offset_start + tag_offset), tag_kexs_vals, "Unknown")); proto_item_append_text(ti_tag, ", %s", val_to_str(tvb_get_ntohl(tvb, tag_offset_start + tag_offset), tag_kexs_vals, "Unknown")); tag_offset += 4; tag_len -= 4; } break; case TAG_OBIT: proto_tree_add_item(tag_tree, hf_quic_tag_obit, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_EXPY: proto_tree_add_item(tag_tree, hf_quic_tag_expy, tvb, tag_offset_start + tag_offset, 8, ENC_LITTLE_ENDIAN); tag_offset += 8; tag_len -= 8; break; case TAG_NONC: /*TODO: Enhance display: 32 bytes consisting of 4 bytes of timestamp (big-endian, UNIX epoch seconds), 8 bytes of server orbit and 20 bytes of random data. */ proto_tree_add_item(tag_tree, hf_quic_tag_nonc, tvb, tag_offset_start + tag_offset, 32, ENC_NA); tag_offset += 32; tag_len -= 32; break; case TAG_MSPC: proto_tree_add_item(tag_tree, hf_quic_tag_mspc, tvb, tag_offset_start + tag_offset, 4, ENC_LITTLE_ENDIAN); proto_item_append_text(ti_tag, ": %u", tvb_get_letohl(tvb, tag_offset_start + tag_offset)); tag_offset += 4; tag_len -= 4; break; case TAG_TCID: proto_tree_add_item(tag_tree, hf_quic_tag_tcid, tvb, tag_offset_start + tag_offset, 4, ENC_LITTLE_ENDIAN); tag_offset += 4; tag_len -= 4; break; case TAG_SRBF: proto_tree_add_item(tag_tree, hf_quic_tag_srbf, tvb, tag_offset_start + tag_offset, 4, ENC_LITTLE_ENDIAN); tag_offset += 4; tag_len -= 4; break; case TAG_ICSL: proto_tree_add_item(tag_tree, hf_quic_tag_icsl, tvb, tag_offset_start + tag_offset, 4, ENC_LITTLE_ENDIAN); tag_offset += 4; tag_len -= 4; break; case TAG_SCLS: proto_tree_add_item(tag_tree, hf_quic_tag_scls, tvb, tag_offset_start + tag_offset, 4, ENC_LITTLE_ENDIAN); tag_offset += 4; tag_len -= 4; break; case TAG_COPT: if(tag_len){ proto_tree_add_item(tag_tree, hf_quic_tag_copt, tvb, tag_offset_start + tag_offset, 4, ENC_LITTLE_ENDIAN); tag_offset += 4; tag_len -= 4; } break; case TAG_CCRT: proto_tree_add_item(tag_tree, hf_quic_tag_ccrt, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_IRTT: proto_tree_add_item(tag_tree, hf_quic_tag_irtt, tvb, tag_offset_start + tag_offset, 4, ENC_LITTLE_ENDIAN); proto_item_append_text(ti_tag, ": %u", tvb_get_letohl(tvb, tag_offset_start + tag_offset)); tag_offset += 4; tag_len -= 4; break; case TAG_CFCW: proto_tree_add_item(tag_tree, hf_quic_tag_cfcw, tvb, tag_offset_start + tag_offset, 4, ENC_LITTLE_ENDIAN); proto_item_append_text(ti_tag, ": %u", tvb_get_letohl(tvb, tag_offset_start + tag_offset)); tag_offset += 4; tag_len -= 4; break; case TAG_SFCW: proto_tree_add_item(tag_tree, hf_quic_tag_sfcw, tvb, tag_offset_start + tag_offset, 4, ENC_LITTLE_ENDIAN); proto_item_append_text(ti_tag, ": %u", tvb_get_letohl(tvb, tag_offset_start + tag_offset)); tag_offset += 4; tag_len -= 4; break; case TAG_CETV: proto_tree_add_item(tag_tree, hf_quic_tag_cetv, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA); tag_offset += tag_len; tag_len -= tag_len; break; case TAG_XLCT: proto_tree_add_item(tag_tree, hf_quic_tag_xlct, tvb, tag_offset_start + tag_offset, 8, ENC_NA); tag_offset += 8; tag_len -= 8; break; case TAG_NONP: proto_tree_add_item(tag_tree, hf_quic_tag_nonp, tvb, tag_offset_start + tag_offset, 32, ENC_NA); tag_offset += 32; tag_len -= 32; break; default: proto_tree_add_item(tag_tree, hf_quic_tag_unknown, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA); expert_add_info_format(pinfo, ti_tag, &ei_quic_tag_undecoded, "Dissector for QUIC Tag" " %s (%s) code not implemented, Contact" " Wireshark developers if you want this supported", tvb_get_string_enc(wmem_packet_scope(), tvb, offset-8, 4, ENC_ASCII|ENC_NA), val_to_str(tag, tag_vals, "Unknown")); tag_offset += tag_len; tag_len -= tag_len; break; } if(tag_len){ /* Wrong Tag len... */ proto_tree_add_expert(tag_tree, pinfo, &ei_quic_tag_unknown, tvb, tag_offset_start + tag_offset, tag_len); tag_offset += tag_len; tag_len -= tag_len; } tag_number--; } return offset + total_tag_len; } static int dissect_quic_frame_type(tvbuff_t *tvb, packet_info *pinfo, proto_tree *quic_tree, guint offset, guint8 len_seq){ proto_item *ti, *ti_ft, *ti_ftflags /*, *expert_ti*/; proto_tree *ft_tree, *ftflags_tree; guint8 frame_type; guint8 num_ranges, num_revived, num_timestamp; guint32 tag_number; guint32 len_stream = 0, len_offset = 0, len_data = 0, len_largest_observed = 1, len_missing_packet = 1; ti_ft = proto_tree_add_item(quic_tree, hf_quic_frame, tvb, offset, 1, ENC_NA); ft_tree = proto_item_add_subtree(ti_ft, ett_quic_ft); /* Frame type */ ti_ftflags = proto_tree_add_item(ft_tree, hf_quic_frame_type, tvb, offset, 1, ENC_LITTLE_ENDIAN); frame_type = tvb_get_guint8(tvb, offset); proto_item_set_text(ti_ft, "%s", rval_to_str(frame_type, frame_type_vals, "Unknown")); if((frame_type & FTFLAGS_SPECIAL) == 0){ /* Regular Stream Flags */ offset += 1; switch(frame_type){ case FT_PADDING:{ proto_item *ti_pad_len; guint32 pad_len = tvb_reported_length_remaining(tvb, offset); ti_pad_len = proto_tree_add_uint(ft_tree, hf_quic_frame_type_padding_length, tvb, offset, 0, pad_len); PROTO_ITEM_SET_GENERATED(ti_pad_len); proto_item_append_text(ti_ft, " Length: %u", pad_len); proto_tree_add_item(ft_tree, hf_quic_frame_type_padding, tvb, offset, -1, ENC_NA); offset += pad_len; } break; case FT_RST_STREAM:{ guint32 stream_id, error_code; proto_tree_add_item_ret_uint(ft_tree, hf_quic_frame_type_rsts_stream_id, tvb, offset, 4, ENC_LITTLE_ENDIAN, &stream_id); offset += 4; proto_tree_add_item(ft_tree, hf_quic_frame_type_rsts_byte_offset, tvb, offset, 8, ENC_LITTLE_ENDIAN); offset += 8; proto_tree_add_item_ret_uint(ft_tree, hf_quic_frame_type_rsts_error_code, tvb, offset, 4, ENC_LITTLE_ENDIAN, &error_code); offset += 4; proto_item_append_text(ti_ft, " Stream ID: %u, Error code: %s", stream_id, val_to_str_ext(error_code, &error_code_vals_ext, "Unknown (%d)")); } break; case FT_CONNECTION_CLOSE:{ guint16 len_reason; guint32 error_code; proto_tree_add_item_ret_uint(ft_tree, hf_quic_frame_type_cc_error_code, tvb, offset, 4, ENC_LITTLE_ENDIAN, &error_code); offset += 4; proto_tree_add_item(ft_tree, hf_quic_frame_type_cc_reason_phrase_length, tvb, offset, 2, ENC_LITTLE_ENDIAN); len_reason = tvb_get_ntohs(tvb, offset); offset += 2; proto_tree_add_item(ft_tree, hf_quic_frame_type_cc_reason_phrase, tvb, offset, len_reason, ENC_ASCII|ENC_NA); offset += len_reason; proto_item_append_text(ti_ft, " Error code: %s", val_to_str_ext(error_code, &error_code_vals_ext, "Unknown (%d)")); } break; case FT_GOAWAY:{ guint16 len_reason; guint32 error_code, last_good_stream_id; proto_tree_add_item_ret_uint(ft_tree, hf_quic_frame_type_goaway_error_code, tvb, offset, 4, ENC_LITTLE_ENDIAN, &error_code); offset += 4; proto_tree_add_item_ret_uint(ft_tree, hf_quic_frame_type_goaway_last_good_stream_id, tvb, offset, 4, ENC_LITTLE_ENDIAN, &last_good_stream_id); offset += 4; proto_tree_add_item(ft_tree, hf_quic_frame_type_goaway_reason_phrase_length, tvb, offset, 2, ENC_LITTLE_ENDIAN); len_reason = tvb_get_ntohs(tvb, offset); offset += 2; proto_tree_add_item(ft_tree, hf_quic_frame_type_goaway_reason_phrase, tvb, offset, len_reason, ENC_ASCII|ENC_NA); offset += len_reason; proto_item_append_text(ti_ft, " Stream ID: %u, Error code: %s", last_good_stream_id, val_to_str_ext(error_code, &error_code_vals_ext, "Unknown (%d)")); } break; case FT_WINDOW_UPDATE:{ guint32 stream_id; proto_tree_add_item_ret_uint(ft_tree, hf_quic_frame_type_wu_stream_id, tvb, offset, 4, ENC_LITTLE_ENDIAN, &stream_id); offset += 4; proto_tree_add_item(ft_tree, hf_quic_frame_type_wu_byte_offset, tvb, offset, 8, ENC_LITTLE_ENDIAN); offset += 8; proto_item_append_text(ti_ft, " Stream ID: %u", stream_id); } break; case FT_BLOCKED:{ guint32 stream_id; proto_tree_add_item_ret_uint(ft_tree, hf_quic_frame_type_blocked_stream_id, tvb, offset, 4, ENC_LITTLE_ENDIAN, &stream_id); offset += 4; proto_item_append_text(ti_ft, " Stream ID: %u", stream_id); } break; case FT_STOP_WAITING:{ guint8 send_entropy; proto_tree_add_item(ft_tree, hf_quic_frame_type_sw_send_entropy, tvb, offset, 1, ENC_LITTLE_ENDIAN); send_entropy = tvb_get_guint8(tvb, offset); offset += 1; proto_tree_add_item(ft_tree, hf_quic_frame_type_sw_least_unacked_delta, tvb, offset, len_seq, ENC_LITTLE_ENDIAN); offset += len_seq; proto_item_append_text(ti_ft, " Send Entropy: %u", send_entropy); } break; case FT_PING: /* No Payload */ default: /* No default */ break; } } else { /* Special Frame Types */ guint32 stream_id = 0, message_tag; ftflags_tree = proto_item_add_subtree(ti_ftflags, ett_quic_ftflags); proto_tree_add_item(ftflags_tree, hf_quic_frame_type_stream , tvb, offset, 1, ENC_LITTLE_ENDIAN); if(frame_type & FTFLAGS_STREAM){ /* Stream Flags */ proto_tree_add_item(ftflags_tree, hf_quic_frame_type_stream_f, tvb, offset, 1, ENC_LITTLE_ENDIAN); proto_tree_add_item(ftflags_tree, hf_quic_frame_type_stream_d, tvb, offset, 1, ENC_LITTLE_ENDIAN); if(frame_type & FTFLAGS_STREAM_D){ len_data = 2; } proto_tree_add_item(ftflags_tree, hf_quic_frame_type_stream_ooo, tvb, offset, 1, ENC_LITTLE_ENDIAN); len_offset = get_len_offset(frame_type); proto_tree_add_item(ftflags_tree, hf_quic_frame_type_stream_ss, tvb, offset, 1, ENC_LITTLE_ENDIAN); len_stream = get_len_stream(frame_type); offset += 1; if(len_stream) { proto_tree_add_item_ret_uint(ft_tree, hf_quic_stream_id, tvb, offset, len_stream, ENC_LITTLE_ENDIAN, &stream_id); offset += len_stream; } if(len_offset) { proto_tree_add_item(ft_tree, hf_quic_offset_len, tvb, offset, len_offset, ENC_LITTLE_ENDIAN); offset += len_offset; } if(len_data) { proto_tree_add_item(ft_tree, hf_quic_data_len, tvb, offset, len_data, ENC_LITTLE_ENDIAN); offset += len_data; } ti = proto_tree_add_item(ft_tree, hf_quic_tag, tvb, offset, 4, ENC_ASCII|ENC_NA); message_tag = tvb_get_ntohl(tvb, offset); proto_item_append_text(ti, " (%s)", val_to_str(message_tag, message_tag_vals, "Unknown Tag")); proto_item_append_text(ti_ft, " Stream ID:%u, Type: %s (%s)", stream_id, tvb_get_string_enc(wmem_packet_scope(), tvb, offset, 4, ENC_ASCII|ENC_NA), val_to_str(message_tag, message_tag_vals, "Unknown Tag")); col_add_fstr(pinfo->cinfo, COL_INFO, "%s", val_to_str(message_tag, message_tag_vals, "Unknown")); offset += 4; proto_tree_add_item(ft_tree, hf_quic_tag_number, tvb, offset, 2, ENC_LITTLE_ENDIAN); tag_number = tvb_get_letohs(tvb, offset); offset += 2; proto_tree_add_item(ft_tree, hf_quic_padding, tvb, offset, 2, ENC_NA); offset += 2; offset = dissect_quic_tag(tvb, pinfo, ft_tree, offset, tag_number); } else if (frame_type & FTFLAGS_ACK) { /* ACK Flags */ proto_tree_add_item(ftflags_tree, hf_quic_frame_type_ack, tvb, offset, 1, ENC_LITTLE_ENDIAN); proto_tree_add_item(ftflags_tree, hf_quic_frame_type_ack_n, tvb, offset, 1, ENC_LITTLE_ENDIAN); proto_tree_add_item(ftflags_tree, hf_quic_frame_type_ack_t, tvb, offset, 1, ENC_LITTLE_ENDIAN); proto_tree_add_item(ftflags_tree, hf_quic_frame_type_ack_ll, tvb, offset, 1, ENC_LITTLE_ENDIAN); len_largest_observed = get_len_largest_observed(frame_type); proto_tree_add_item(ftflags_tree, hf_quic_frame_type_ack_mm, tvb, offset, 1, ENC_LITTLE_ENDIAN); len_missing_packet = get_len_missing_packet(frame_type); offset += 1; proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_received_entropy, tvb, offset, 1, ENC_LITTLE_ENDIAN); offset += 1; proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_largest_observed, tvb, offset, len_largest_observed, ENC_LITTLE_ENDIAN); offset += len_largest_observed; proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_largest_observed_delta_time, tvb, offset, 2, ENC_LITTLE_ENDIAN); offset += 2; proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_num_timestamp, tvb, offset, 1, ENC_LITTLE_ENDIAN); num_timestamp = tvb_get_guint8(tvb, offset); offset += 1; /* Delta Largest Observed */ proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_delta_largest_observed, tvb, offset, 1, ENC_LITTLE_ENDIAN); offset += 1; /* Time Since Previous Timestamp */ proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_time_since_largest_observed, tvb, offset, 4, ENC_LITTLE_ENDIAN); offset += 4; num_timestamp -= 1; /* Num Timestamp (-1) x (Delta Largest Observed + Time Since Largest Observed) */ while(num_timestamp){ proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_delta_largest_observed, tvb, offset, 1, ENC_LITTLE_ENDIAN); offset += 1; proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_time_since_previous_timestamp, tvb, offset, 2, ENC_LITTLE_ENDIAN); offset += 2; num_timestamp--; } if(frame_type & FTFLAGS_ACK_N){ proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_num_ranges, tvb, offset, 1, ENC_LITTLE_ENDIAN); num_ranges = tvb_get_guint8(tvb, offset); offset += 1; while(num_ranges){ proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_missing_packet, tvb, offset, len_missing_packet, ENC_LITTLE_ENDIAN); offset += len_missing_packet; proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_range_length, tvb, offset, 1, ENC_LITTLE_ENDIAN); offset += 1; num_ranges--; } proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_num_revived, tvb, offset, 1, ENC_LITTLE_ENDIAN); num_revived = tvb_get_guint8(tvb, offset); offset += 1; while(num_revived){ proto_tree_add_item(ft_tree, hf_quic_frame_type_ack_revived_packet, tvb, offset, len_largest_observed, ENC_LITTLE_ENDIAN); offset += len_largest_observed; num_revived--; } } } else { /* Other ...*/ offset += 1; } } return offset; } static int dissect_quic_handshake(tvbuff_t *tvb, packet_info *pinfo, proto_tree *quic_tree, guint offset, guint8 len_seq){ proto_item *ti_prflags; proto_tree *prflags_tree; /* Message Authentication Hash */ proto_tree_add_item(quic_tree, hf_quic_message_authentication_hash, tvb, offset, 12, ENC_NA); offset += 12; /* Private Flags */ ti_prflags = proto_tree_add_item(quic_tree, hf_quic_prflags, tvb, offset, 1, ENC_LITTLE_ENDIAN); prflags_tree = proto_item_add_subtree(ti_prflags, ett_quic_prflags); proto_tree_add_item(prflags_tree, hf_quic_prflags_entropy, tvb, offset, 1, ENC_NA); proto_tree_add_item(prflags_tree, hf_quic_prflags_fecg, tvb, offset, 1, ENC_NA); proto_tree_add_item(prflags_tree, hf_quic_prflags_fec, tvb, offset, 1, ENC_NA); proto_tree_add_item(prflags_tree, hf_quic_prflags_rsv, tvb, offset, 1, ENC_LITTLE_ENDIAN); offset +=1; while(tvb_reported_length_remaining(tvb, offset) > 0){ offset = dissect_quic_frame_type(tvb, pinfo, quic_tree, offset, len_seq); } return offset; } static int dissect_quic_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { proto_item *ti, *ti_puflags; /*, *expert_ti*/ proto_tree *quic_tree, *puflags_tree; guint offset = 0; guint8 puflags, len_cid, len_seq; guint64 cid, seq; if (tvb_captured_length(tvb) < QUIC_MIN_LENGTH) return 0; col_set_str(pinfo->cinfo, COL_PROTOCOL, "QUIC"); ti = proto_tree_add_item(tree, proto_quic, tvb, 0, -1, ENC_NA); quic_tree = proto_item_add_subtree(ti, ett_quic); /* Public Flags */ ti_puflags = proto_tree_add_item(quic_tree, hf_quic_puflags, tvb, offset, 1, ENC_LITTLE_ENDIAN); puflags_tree = proto_item_add_subtree(ti_puflags, ett_quic_puflags); proto_tree_add_item(puflags_tree, hf_quic_puflags_vrsn, tvb, offset, 1, ENC_NA); proto_tree_add_item(puflags_tree, hf_quic_puflags_rst, tvb, offset, 1, ENC_NA); proto_tree_add_item(puflags_tree, hf_quic_puflags_cid, tvb, offset, 1, ENC_LITTLE_ENDIAN); proto_tree_add_item(puflags_tree, hf_quic_puflags_seq, tvb, offset, 1, ENC_LITTLE_ENDIAN); proto_tree_add_item(puflags_tree, hf_quic_puflags_rsv, tvb, offset, 1, ENC_LITTLE_ENDIAN); puflags = tvb_get_guint8(tvb, offset); offset += 1; /* CID */ /* Get len of CID (and CID), may be a more easy function to get the length... */ switch((puflags & PUFLAGS_CID) >> 2){ case 0: len_cid = 0; cid = 0; break; case 1: len_cid = 1; cid = tvb_get_guint8(tvb, offset); break; case 2: len_cid = 4; cid = tvb_get_letohl(tvb, offset); break; case 3: len_cid = 8; cid = tvb_get_letoh64(tvb, offset); break; default: /* It is only between 0..3 but Clang(Analyser) i don't like this... ;-) */ len_cid = 8; cid = tvb_get_letoh64(tvb, offset); break; } if (len_cid) { proto_tree_add_item(quic_tree, hf_quic_cid, tvb, offset, len_cid, ENC_LITTLE_ENDIAN); offset += len_cid; } /* Version */ if(puflags & PUFLAGS_VRSN){ proto_tree_add_item(quic_tree, hf_quic_version, tvb, offset, 4, ENC_ASCII|ENC_NA); offset += 4; } /* Sequence */ /* Get len of sequence (and sequence), may be a more easy function to get the length... */ switch((puflags & PUFLAGS_SEQ) >> 4){ case 0: len_seq = 1; seq = tvb_get_guint8(tvb, offset); break; case 1: len_seq = 2; seq = tvb_get_letohs(tvb, offset); break; case 2: len_seq = 4; seq = tvb_get_letohl(tvb, offset); break; case 3: len_seq = 6; seq = tvb_get_letoh48(tvb, offset); break; default: /* It is only between 0..3 but Clang(Analyser) i don't like this... ;-) */ len_seq = 6; seq = tvb_get_letoh48(tvb, offset); break; } proto_tree_add_item(quic_tree, hf_quic_sequence, tvb, offset, len_seq, ENC_LITTLE_ENDIAN); offset += len_seq; /* Handshake Message */ if (is_quic_handshake(tvb, offset, len_seq)){ offset = dissect_quic_handshake(tvb, pinfo, quic_tree, offset, len_seq); }else { /* Payload... (encrypted... TODO FIX !) */ col_add_str(pinfo->cinfo, COL_INFO, "Payload (Encrypted)"); proto_tree_add_item(quic_tree, hf_quic_payload, tvb, offset, -1, ENC_NA); } col_append_fstr(pinfo->cinfo, COL_INFO, ", Seq: %" G_GINT64_MODIFIER "u", seq); if(cid){ col_append_fstr(pinfo->cinfo, COL_INFO, ", CID: %" G_GINT64_MODIFIER "u", cid); } return offset; } static int dissect_quic(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { return dissect_quic_common(tvb, pinfo, tree, NULL); } void proto_register_quic(void) { module_t *quic_module; static hf_register_info hf[] = { { &hf_quic_puflags, { "Public Flags", "quic.puflags", FT_UINT8, BASE_HEX, NULL, 0x0, "Specifying per-packet public flags", HFILL } }, { &hf_quic_puflags_vrsn, { "Version", "quic.puflags.version", FT_BOOLEAN, 8, TFS(&tfs_yes_no), PUFLAGS_VRSN, "Signifies that this packet also contains the version of the QUIC protocol", HFILL } }, { &hf_quic_puflags_rst, { "Reset", "quic.puflags.reset", FT_BOOLEAN, 8, TFS(&tfs_yes_no), PUFLAGS_RST, "Signifies that this packet is a public reset packet", HFILL } }, { &hf_quic_puflags_cid, { "CID Length", "quic.puflags.cid", FT_UINT8, BASE_HEX, VALS(puflags_cid_vals), PUFLAGS_CID, "Signifies the Length of CID", HFILL } }, { &hf_quic_puflags_seq, { "Sequence Length", "quic.puflags.seq", FT_UINT8, BASE_HEX, VALS(puflags_seq_vals), PUFLAGS_SEQ, "Signifies the Length of Sequence", HFILL } }, { &hf_quic_puflags_rsv, { "Reserved", "quic.puflags.rsv", FT_UINT8, BASE_HEX, NULL, PUFLAGS_RSV, "Must be Zero", HFILL } }, { &hf_quic_cid, { "CID", "quic.cid", FT_UINT64, BASE_DEC, NULL, 0x0, "Connection ID 64 bit pseudo random number", HFILL } }, { &hf_quic_version, { "Version", "quic.version", FT_STRING, BASE_NONE, NULL, 0x0, "32 bit opaque tag that represents the version of the QUIC", HFILL } }, { &hf_quic_sequence, { "Sequence", "quic.sequence", FT_UINT64, BASE_DEC, NULL, 0x0, "The lower 8, 16, 32, or 48 bits of the sequence number", HFILL } }, { &hf_quic_prflags, { "Private Flags", "quic.prflags", FT_UINT8, BASE_HEX, NULL, 0x0, "Specifying per-packet Private flags", HFILL } }, { &hf_quic_prflags_entropy, { "Entropy", "quic.prflags.entropy", FT_BOOLEAN, 8, TFS(&tfs_yes_no), PRFLAGS_ENTROPY, "For data packets, signifies that this packet contains the 1 bit of entropy, for fec packets, contains the xor of the entropy of protected packets", HFILL } }, { &hf_quic_prflags_fecg, { "FEC Group", "quic.prflags.fecg", FT_BOOLEAN, 8, TFS(&tfs_yes_no), PRFLAGS_FECG, "Indicates whether the fec byte is present.", HFILL } }, { &hf_quic_prflags_fec, { "FEC", "quic.prflags.fec", FT_BOOLEAN, 8, TFS(&tfs_yes_no), PRFLAGS_FEC, "Signifies that this packet represents an FEC packet", HFILL } }, { &hf_quic_prflags_rsv, { "Reserved", "quic.prflags.rsv", FT_UINT8, BASE_HEX, NULL, PRFLAGS_RSV, "Must be Zero", HFILL } }, { &hf_quic_message_authentication_hash, { "Message Authentication Hash", "quic.message_authentication_hash", FT_BYTES, BASE_NONE, NULL, 0x0, "The hash is an FNV1a-128 hash, serialized in little endian order", HFILL } }, { &hf_quic_frame, { "Frame", "quic.frame", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_frame_type, { "Frame Type", "quic.frame_type", FT_UINT8 ,BASE_RANGE_STRING | BASE_HEX, RVALS(frame_type_vals), 0x0, NULL, HFILL } }, { &hf_quic_frame_type_padding_length, { "Padding Length", "quic.frame_type.padding.length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_frame_type_padding, { "Padding", "quic.frame_type.padding", FT_BYTES, BASE_NONE, NULL, 0x0, "Must be zero", HFILL } }, { &hf_quic_frame_type_rsts_stream_id, { "Stream ID", "quic.frame_type.rsts.stream_id", FT_UINT32, BASE_DEC, NULL, 0x0, "Stream ID of the stream being terminated", HFILL } }, { &hf_quic_frame_type_rsts_byte_offset, { "Byte offset", "quic.frame_type.rsts.byte_offset", FT_UINT64, BASE_DEC, NULL, 0x0, "Indicating the absolute byte offset of the end of data for this stream", HFILL } }, { &hf_quic_frame_type_rsts_error_code, { "Error code", "quic.frame_type.rsts.error_code", FT_UINT32, BASE_DEC|BASE_EXT_STRING, &error_code_vals_ext, 0x0, "Indicates why the stream is being closed", HFILL } }, { &hf_quic_frame_type_cc_error_code, { "Error code", "quic.frame_type.cc.error_code", FT_UINT32, BASE_DEC|BASE_EXT_STRING, &error_code_vals_ext, 0x0, "Stream ID of the stream being terminated", HFILL } }, { &hf_quic_frame_type_cc_reason_phrase_length, { "Reason phrase Length", "quic.frame_type.cc.reason_phrase.length", FT_UINT16, BASE_DEC, NULL, 0x0, "Specifying the length of the reason phrase", HFILL } }, { &hf_quic_frame_type_cc_reason_phrase, { "Reason phrase", "quic.frame_type.cc.reason_phrase", FT_STRING, BASE_NONE, NULL, 0x0, "An optional human-readable explanation for why the connection was closed", HFILL } }, { &hf_quic_frame_type_goaway_error_code, { "Error code", "quic.frame_type.goaway.error_code", FT_UINT32, BASE_DEC|BASE_EXT_STRING, &error_code_vals_ext, 0x0, "Stream ID of the stream being terminated", HFILL } }, { &hf_quic_frame_type_goaway_last_good_stream_id, { "Error code", "quic.frame_type.goaway.error_code", FT_UINT32, BASE_DEC|BASE_EXT_STRING, &error_code_vals_ext, 0x0, "Stream ID of the stream being terminated", HFILL } }, { &hf_quic_frame_type_goaway_reason_phrase_length, { "Reason phrase Length", "quic.frame_type.goaway.reason_phrase.length", FT_UINT16, BASE_DEC, NULL, 0x0, "Specifying the length of the reason phrase", HFILL } }, { &hf_quic_frame_type_goaway_reason_phrase, { "Reason phrase", "quic.frame_type.goaway.reason_phrase", FT_STRING, BASE_NONE, NULL, 0x0, "An optional human-readable explanation for why the connection was closed", HFILL } }, { &hf_quic_frame_type_wu_stream_id, { "Stream ID", "quic.frame_type.wu.stream_id", FT_UINT32, BASE_DEC, NULL, 0x0, "ID of the stream whose flow control windows is begin updated, or 0 to specify the connection-level flow control window", HFILL } }, { &hf_quic_frame_type_wu_byte_offset, { "Byte offset", "quic.frame_type.wu.byte_offset", FT_UINT64, BASE_DEC, NULL, 0x0, "Indicating the absolute byte offset of data which can be sent on the given stream", HFILL } }, { &hf_quic_frame_type_blocked_stream_id, { "Stream ID", "quic.frame_type.blocked.stream_id", FT_UINT32, BASE_DEC, NULL, 0x0, "Indicating the stream which is flow control blocked", HFILL } }, { &hf_quic_frame_type_sw_send_entropy, { "Send Entropy", "quic.frame_type.sw.send_entropy", FT_UINT8, BASE_DEC, NULL, 0x0, "Specifying the cumulative hash of entropy in all sent packets up to the packet with sequence number one less than the least unacked packet", HFILL } }, { &hf_quic_frame_type_sw_least_unacked_delta, { "Least unacked delta", "quic.frame_type.sw.least_unacked_delta", FT_UINT64, BASE_DEC, NULL, 0x0, "A variable length sequence number delta withthe same length as the packet header's sequence number", HFILL } }, { &hf_quic_frame_type_stream, { "Stream", "quic.frame_type.stream", FT_BOOLEAN, 8, NULL, FTFLAGS_STREAM, NULL, HFILL } }, { &hf_quic_frame_type_stream_f, { "FIN", "quic.frame_type.stream.f", FT_BOOLEAN, 8, NULL, FTFLAGS_STREAM_F, NULL, HFILL } }, { &hf_quic_frame_type_stream_d, { "Data Length", "quic.frame_type.stream.d", FT_BOOLEAN, 8, TFS(&len_data_vals), FTFLAGS_STREAM_D, NULL, HFILL } }, { &hf_quic_frame_type_stream_ooo, { "Offset Length", "quic.frame_type.stream.ooo", FT_UINT8, BASE_DEC, VALS(len_offset_vals), FTFLAGS_STREAM_OOO, NULL, HFILL } }, { &hf_quic_frame_type_stream_ss, { "Stream Length", "quic.frame_type.stream.ss", FT_UINT8, BASE_DEC, VALS(len_stream_vals), FTFLAGS_STREAM_SS, NULL, HFILL } }, { &hf_quic_frame_type_ack, { "ACK", "quic.frame_type.ack", FT_BOOLEAN, 8, NULL, FTFLAGS_ACK, NULL, HFILL } }, { &hf_quic_frame_type_ack_n, { "NACK", "quic.frame_type.ack.n", FT_BOOLEAN, 8, NULL, FTFLAGS_ACK_N, NULL, HFILL } }, { &hf_quic_frame_type_ack_t, { "Truncated", "quic.frame_type.ack.t", FT_BOOLEAN, 8, NULL, FTFLAGS_ACK_T, NULL, HFILL } }, { &hf_quic_frame_type_ack_ll, { "Largest Observed Length", "quic.frame_type.ack.ll", FT_UINT8, BASE_DEC, VALS(len_largest_observed_vals), FTFLAGS_ACK_LL, "Length of the Largest Observed field as 1, 2, 4, or 6 bytes long", HFILL } }, { &hf_quic_frame_type_ack_mm, { "Missing Packet Length", "quic.frame_type.ack.mm", FT_UINT8, BASE_DEC, VALS(len_missing_packet_vals), FTFLAGS_ACK_MM, "Length of the Missing Packet Sequence Number Delta field as 1, 2, 4, or 6 bytes long", HFILL } }, { &hf_quic_frame_type_ack_received_entropy, { "Received Entropy", "quic.frame_type.ack.received_entropy", FT_UINT8, BASE_DEC, NULL, 0x0, "Specifying the cumulative hash of entropy in all received packets up to the largest observed packet", HFILL } }, { &hf_quic_frame_type_ack_largest_observed, { "Largest Observed", "quic.frame_type.ack.largest_observed", FT_UINT64, BASE_DEC, NULL, 0x0, "Representing the largest sequence number the peer has observed", HFILL } }, { &hf_quic_frame_type_ack_largest_observed_delta_time, { "Largest Observed Delta time", "quic.frame_type.ack.largest_observed_delta_time", FT_UINT16, BASE_DEC, NULL, 0x0, "Specifying the time elapsed in microseconds from when largest observed was received until this Ack frame was sent", HFILL } }, { &hf_quic_frame_type_ack_num_timestamp, { "Num Timestamp", "quic.frame_type.ack.num_timestamp", FT_UINT8, BASE_DEC, NULL, 0x0, "Specifying the number of TCP timestamps that are included in this frame", HFILL } }, { &hf_quic_frame_type_ack_delta_largest_observed, { "Delta Largest Observed", "quic.frame_type.ack.delta_largest_observed", FT_UINT16, BASE_DEC, NULL, 0x0, "Specifying the sequence number delta from the first timestamp to the largest observed", HFILL } }, { &hf_quic_frame_type_ack_time_since_largest_observed, { "Time since Largest Observed", "quic.frame_type.ack.time_since_largest_observed", FT_UINT32, BASE_DEC, NULL, 0x0, "This is the time delta in microseconds from the time the receiver's packet framer was created", HFILL } }, { &hf_quic_frame_type_ack_time_since_previous_timestamp, { "Time since Previous timestamp", "quic.frame_type.ack.time_since_previous_timestamp", FT_UINT16, BASE_DEC, NULL, 0x0, "This is the time delta from the previous timestamp", HFILL } }, { &hf_quic_frame_type_ack_num_ranges, { "Num Ranges", "quic.frame_type.ack.num_ranges", FT_UINT8, BASE_DEC, NULL, 0x0, "Specifying the number of missing packet ranges between largest observed and least unacked", HFILL } }, { &hf_quic_frame_type_ack_missing_packet, { "Missing Packet Sequence Number Delta", "quic.frame_type.ack.missing_packet", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_frame_type_ack_range_length, { "Range Length", "quic.frame_type.ack.range_length", FT_UINT8, BASE_DEC, NULL, 0x0, "Specifying one less than the number of sequential nacks in the range", HFILL } }, { &hf_quic_frame_type_ack_num_revived, { "Num Ranges", "quic.frame_type.ack.num_revived", FT_UINT8, BASE_DEC, NULL, 0x0, "Specifying the number of revived packets, recovered via FEC", HFILL } }, { &hf_quic_frame_type_ack_revived_packet, { "Revived Packet Sequence Number", "quic.frame_type.ack.revived_packet", FT_UINT64, BASE_DEC, NULL, 0x0, "Representing a packet the peer has revived via FEC", HFILL } }, { &hf_quic_stream_id, { "Stream ID", "quic.stream_id", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_offset_len, { "Offset Length", "quic.offset_len", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_data_len, { "Data Length", "quic.data_len", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag, { "Tag", "quic.tag", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_number, { "Tag Number", "quic.tag_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tags, { "Tag/value", "quic.tags", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_type, { "Tag Type", "quic.tag_type", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_offset_end, { "Tag offset end", "quic.tag_offset_end", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_length, { "Tag length", "quic.tag_offset_length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_value, { "Tag/value", "quic.tag_value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_sni, { "Server Name Indication", "quic.tag.sni", FT_STRING, BASE_NONE, NULL, 0x0, "The fully qualified DNS name of the server, canonicalised to lowercase with no trailing period", HFILL } }, { &hf_quic_tag_pad, { "Padding", "quic.tag.pad", FT_BYTES, BASE_NONE, NULL, 0x0, "Pad.....", HFILL } }, { &hf_quic_tag_ver, { "Version", "quic.tag.version", FT_STRING, BASE_NONE, NULL, 0x0, "Version of QUIC supported", HFILL } }, { &hf_quic_tag_pdmd, { "Proof demand", "quic.tag.pdmd", FT_STRING, BASE_NONE, NULL, 0x0, "a list of tags describing the types of proof acceptable to the client, in preference order", HFILL } }, { &hf_quic_tag_ccs, { "Common certificate sets", "quic.tag.ccs", FT_UINT64, BASE_HEX, NULL, 0x0, "A series of 64-bit, FNV-1a hashes of sets of common certificates that the client possesses", HFILL } }, { &hf_quic_tag_uaid, { "Client's User Agent ID", "quic.tag.uaid", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_stk, { "Source-address token", "quic.tag.stk", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_sno, { "Server nonce", "quic.tag.sno", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_prof, { "Proof (Signature)", "quic.tag.prof", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_scfg, { "Server Config Tag", "quic.tag.scfg", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_scfg_number, { "Number Server Config Tag", "quic.tag.scfg.number", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_rrej, { "Reasons for server sending", "quic.tag.rrej", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_crt, { "Certificate chain", "quic.tag.crt", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_aead, { "Authenticated encryption algorithms", "quic.tag.aead", FT_STRING, BASE_NONE, NULL, 0x0, "A list of tags, in preference order, specifying the AEAD primitives supported by the server", HFILL } }, { &hf_quic_tag_scid, { "Server Config ID", "quic.tag.scid", FT_BYTES, BASE_NONE, NULL, 0x0, "An opaque, 16-byte identifier for this server config", HFILL } }, { &hf_quic_tag_pubs, { "Public value", "quic.tag.pubs", FT_UINT24, BASE_DEC_HEX, NULL, 0x0, "A list of public values, 24-bit, little-endian length prefixed", HFILL } }, { &hf_quic_tag_kexs, { "Key exchange algorithms", "quic.tag.kexs", FT_STRING, BASE_NONE, NULL, 0x0, "A list of tags, in preference order, specifying the key exchange algorithms that the server supports", HFILL } }, { &hf_quic_tag_obit, { "Server orbit", "quic.tag.obit", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_expy, { "Expiry", "quic.tag.expy", FT_UINT64, BASE_DEC, NULL, 0x0, "a 64-bit expiry time for the server config in UNIX epoch seconds", HFILL } }, { &hf_quic_tag_nonc, { "Client nonce", "quic.tag.nonc", FT_BYTES, BASE_NONE, NULL, 0x0, "32 bytes consisting of 4 bytes of timestamp (big-endian, UNIX epoch seconds), 8 bytes of server orbit and 20 bytes of random data", HFILL } }, { &hf_quic_tag_mspc, { "Max streams per connection", "quic.tag.mspc", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_tcid, { "Connection ID truncation", "quic.tag.tcid", FT_UINT32, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_srbf, { "Socket receive buffer", "quic.tag.srbf", FT_UINT32, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_icsl, { "Idle connection state", "quic.tag.icsl", FT_UINT32, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_scls, { "Silently close on timeout", "quic.tag.scls", FT_UINT32, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_copt, { "Connection options", "quic.tag.copt", FT_UINT32, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_ccrt, { "Cached certificates", "quic.tag.ccrt", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_irtt, { "Estimated initial RTT", "quic.tag.irtt", FT_UINT32, BASE_DEC, NULL, 0x0, "in us", HFILL } }, { &hf_quic_tag_cfcw, { "Initial session/connection", "quic.tag.cfcw", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_sfcw, { "Initial stream flow control", "quic.tag.sfcw", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_cetv, { "Client encrypted tag-value", "quic.tag.cetv", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_xlct, { "Expected leaf certificate", "quic.tag.xlct", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_nonp, { "Client Proof nonce", "quic.tag.nonp", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_tag_unknown, { "Unknown tag", "quic.tag.unknown", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_padding, { "Padding", "quic.padding", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_quic_payload, { "Payload", "quic.payload", FT_BYTES, BASE_NONE, NULL, 0x0, "Quic Payload..", HFILL } }, }; static gint *ett[] = { &ett_quic, &ett_quic_puflags, &ett_quic_prflags, &ett_quic_ft, &ett_quic_ftflags, &ett_quic_tag_value }; static ei_register_info ei[] = { { &ei_quic_tag_undecoded, { "quic.tag.undecoded", PI_UNDECODED, PI_NOTE, "Dissector for QUIC Tag code not implemented, Contact Wireshark developers if you want this supported", EXPFILL }}, { &ei_quic_tag_length, { "quic.tag.length.truncated", PI_MALFORMED, PI_NOTE, "Truncated Tag Length...", EXPFILL }}, { &ei_quic_tag_unknown, { "quic.tag.unknown.data", PI_UNDECODED, PI_NOTE, "Unknown Data", EXPFILL }} }; expert_module_t *expert_quic; proto_quic = proto_register_protocol("QUIC (Quick UDP Internet Connections)", "QUIC", "quic"); proto_register_field_array(proto_quic, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); quic_module = prefs_register_protocol(proto_quic, proto_reg_handoff_quic); prefs_register_uint_preference(quic_module, "udp.quic.port", "QUIC UDP Port", "QUIC UDP port if other than the default", 10, &g_quic_port); prefs_register_uint_preference(quic_module, "udp.quics.port", "QUICS UDP Port", "QUICS (Secure) UDP port if other than the default", 10, &g_quics_port); expert_quic = expert_register_protocol(proto_quic); expert_register_field_array(expert_quic, ei, array_length(ei)); } void proto_reg_handoff_quic(void) { static gboolean initialized = FALSE; static dissector_handle_t quic_handle; static int current_quic_port; static int current_quics_port; if (!initialized) { quic_handle = create_dissector_handle(dissect_quic, proto_quic); initialized = TRUE; } else { dissector_delete_uint("udp.port", current_quic_port, quic_handle); dissector_delete_uint("udp.port", current_quics_port, quic_handle); } current_quic_port = g_quic_port; current_quics_port = g_quics_port; dissector_add_uint("udp.port", current_quic_port, quic_handle); dissector_add_uint("udp.port", current_quics_port, quic_handle); } /* * Editor modelines - http://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 4 * tab-width: 8 * indent-tabs-mode: nil * End: * * vi: set shiftwidth=4 tabstop=8 expandtab: * :indentSize=4:tabSize=8:noTabs=true: */