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wireshark/epan/dissectors/packet-fbzero.c

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/* packet-fbzero.c
* Routines for Zero Protocol dissection
* Copyright 2016-2017, Alexis La Goutte <alexis.lagoutte at gmail dot com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* 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.
*/
/*
Zero Protocol coming from Facebook and used the same framing like QUIC (tag-map value) but based on TCP
It was reverse engineered based off of QUIC dissector functionality
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/expert.h>
#include <epan/conversation.h>
void proto_register_fb_zero(void);
void proto_reg_handoff_fb_zero(void);
static int proto_fb_zero = -1;
static dissector_handle_t fb_zero_handle;
static int hf_fb_zero_puflags = -1;
static int hf_fb_zero_puflags_vrsn = -1;
static int hf_fb_zero_puflags_unknown = -1;
static int hf_fb_zero_version = -1;
static int hf_fb_zero_length = -1;
static int hf_fb_zero_tag = -1;
static int hf_fb_zero_tags = -1;
static int hf_fb_zero_tag_number = -1;
static int hf_fb_zero_tag_value = -1;
static int hf_fb_zero_tag_type = -1;
static int hf_fb_zero_tag_offset_end = -1;
static int hf_fb_zero_tag_length = -1;
static int hf_fb_zero_tag_sni = -1;
static int hf_fb_zero_tag_vers = -1;
static int hf_fb_zero_tag_sno = -1;
static int hf_fb_zero_tag_aead = -1;
static int hf_fb_zero_tag_scid = -1;
static int hf_fb_zero_tag_time = -1;
static int hf_fb_zero_tag_alpn = -1;
static int hf_fb_zero_tag_pubs = -1;
static int hf_fb_zero_tag_kexs = -1;
static int hf_fb_zero_tag_nonc = -1;
static int hf_fb_zero_tag_unknown = -1;
static int hf_fb_zero_padding = -1;
static int hf_fb_zero_payload = -1;
static int hf_fb_zero_unknown = -1;
static gint ett_fb_zero = -1;
static gint ett_fb_zero_puflags = -1;
static gint ett_fb_zero_prflags = -1;
static gint ett_fb_zero_ft = -1;
static gint ett_fb_zero_ftflags = -1;
static gint ett_fb_zero_tag_value = -1;
static expert_field ei_fb_zero_tag_undecoded = EI_INIT;
static expert_field ei_fb_zero_tag_length = EI_INIT;
static expert_field ei_fb_zero_tag_unknown = EI_INIT;
#define FBZERO_MIN_LENGTH 3
#define VERSION_QTV 0x515456
/**************************************************************************/
/* Public Flags */
/**************************************************************************/
#define PUFLAGS_VRSN 0x01
#define PUFLAGS_UNKN 0xFE
/**************************************************************************/
/* Message tag */
/**************************************************************************/
#define MTAG_CHLO 0x43484C4F
#define MTAG_SNOM 0x534E4F4D
#define MTAG_SHLO 0x53484C4F
#define MTAG_REJ 0x52454A00
#define MTAG_PRST 0x50525354
static const value_string message_tag_vals[] = {
{ MTAG_CHLO, "Client Hello" },
{ MTAG_SNOM, "Server NOM??" },
{ MTAG_SHLO, "Server Hello" },
{ MTAG_REJ, "Rejection" },
{ MTAG_PRST, "Public Reset" },
{ 0, NULL }
};
/**************************************************************************/
/* Tag */
/**************************************************************************/
#define TAG_SNI 0x534E4900
#define TAG_VERS 0x56455253
#define TAG_SNO 0x534E4F00
#define TAG_AEAD 0x41454144
#define TAG_SCID 0x53434944
#define TAG_TIME 0x54494d45
#define TAG_ALPN 0x414C504E
#define TAG_PUBS 0x50554253
#define TAG_KEXS 0x4B455853
#define TAG_NONC 0x4E4F4E43
static const value_string tag_vals[] = {
{ TAG_SNI, "Server Name Indication" },
{ TAG_VERS, "Version" },
{ TAG_SNO, "Server nonce" },
{ TAG_AEAD, "Authenticated encryption algorithms" },
{ TAG_SCID, "Server config ID" },
{ TAG_TIME, "Time" },
{ TAG_ALPN, "ALPN" },
{ TAG_PUBS, "Public value" },
{ TAG_KEXS, "Key exchange algorithms" },
{ TAG_NONC, "Client 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 }
};
static guint32
dissect_fb_zero_tag(tvbuff_t *tvb, packet_info *pinfo, proto_tree *fb_zero_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;
const guint8* tag_str;
ti_tag = proto_tree_add_item(fb_zero_tree, hf_fb_zero_tags, tvb, offset, 8, ENC_NA);
tag_tree = proto_item_add_subtree(ti_tag, ett_fb_zero_tag_value);
ti_type = proto_tree_add_item_ret_string(tag_tree, hf_fb_zero_tag_type, tvb, offset, 4, ENC_ASCII|ENC_NA, wmem_packet_scope(), &tag_str);
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)", tag_str, val_to_str(tag, tag_vals, "Unknown"));
offset += 4;
proto_tree_add_item(tag_tree, hf_fb_zero_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_fb_zero_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);
offset_end = tag_offset + tag_len;
expert_add_info(pinfo, ti_len, &ei_fb_zero_tag_length);
}
proto_tree_add_item(tag_tree, hf_fb_zero_tag_value, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA);
switch(tag){
case TAG_SNI:
proto_tree_add_item_ret_string(tag_tree, hf_fb_zero_tag_sni, tvb, tag_offset_start + tag_offset, tag_len, ENC_ASCII|ENC_NA, wmem_packet_scope(), &tag_str);
proto_item_append_text(ti_tag, ": %s", tag_str);
tag_offset += tag_len;
break;
case TAG_VERS:
proto_tree_add_item_ret_string(tag_tree, hf_fb_zero_tag_vers, tvb, tag_offset_start + tag_offset, 4, ENC_ASCII|ENC_NA, wmem_packet_scope(), &tag_str);
proto_item_append_text(ti_tag, ": %s", tag_str);
tag_offset += 4;
break;
case TAG_SNO:
proto_tree_add_item(tag_tree, hf_fb_zero_tag_sno, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA);
tag_offset += tag_len;
break;
case TAG_AEAD:
while(offset_end - tag_offset >= 4){
proto_tree *ti_aead;
ti_aead = proto_tree_add_item(tag_tree, hf_fb_zero_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;
}
break;
case TAG_SCID:
proto_tree_add_item(tag_tree, hf_fb_zero_tag_scid, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA);
tag_offset += tag_len;
break;
case TAG_TIME:
proto_tree_add_item(tag_tree, hf_fb_zero_tag_time, 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;
break;
case TAG_ALPN:
proto_tree_add_item_ret_string(tag_tree, hf_fb_zero_tag_alpn, tvb, tag_offset_start + tag_offset, 4, ENC_ASCII|ENC_NA, wmem_packet_scope(), &tag_str);
proto_item_append_text(ti_tag, ": %s", tag_str);
tag_offset += 4;
break;
case TAG_PUBS:
/*TODO FIX: 24 Length + Pubs key?.. ! */
proto_tree_add_item(tag_tree, hf_fb_zero_tag_pubs, tvb, tag_offset_start + tag_offset, 2, ENC_LITTLE_ENDIAN);
tag_offset += 2;
while(offset_end - tag_offset >= 3){
proto_tree_add_item(tag_tree, hf_fb_zero_tag_pubs, tvb, tag_offset_start + tag_offset, 3, ENC_LITTLE_ENDIAN);
tag_offset += 3;
}
break;
case TAG_KEXS:
while(offset_end - tag_offset >= 4){
proto_tree *ti_kexs;
ti_kexs = proto_tree_add_item(tag_tree, hf_fb_zero_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;
}
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_fb_zero_tag_nonc, tvb, tag_offset_start + tag_offset, 32, ENC_NA);
tag_offset += 32;
break;
default:
proto_tree_add_item(tag_tree, hf_fb_zero_tag_unknown, tvb, tag_offset_start + tag_offset, tag_len, ENC_NA);
expert_add_info_format(pinfo, ti_tag, &ei_fb_zero_tag_undecoded,
"Dissector for FB Zero 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;
break;
}
if(tag_offset != offset_end){
/* Wrong Tag len... */
proto_tree_add_expert(tag_tree, pinfo, &ei_fb_zero_tag_unknown, tvb, tag_offset_start + tag_offset, offset_end - tag_offset);
tag_offset = offset_end;
}
tag_number--;
}
return offset + total_tag_len;
}
static int
dissect_fb_zero_unencrypt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *fb_zero_tree, guint offset, guint8 len_pkn _U_){
while(tvb_reported_length_remaining(tvb, offset) > 0){
proto_item *ti;
guint32 message_tag, tag_number, length;
const guint8* message_tag_str;
proto_tree_add_item(fb_zero_tree, hf_fb_zero_unknown, tvb, offset, 1, ENC_NA);
offset += 1;
proto_tree_add_item_ret_uint(fb_zero_tree, hf_fb_zero_length, tvb, offset, 4, ENC_LITTLE_ENDIAN, &length);
offset += 4;
message_tag = tvb_get_ntohl(tvb, offset);
/* check if it is a known message_tag (CHLO, SNOM...) */
if(try_val_to_str(message_tag, message_tag_vals)){
ti = proto_tree_add_item_ret_string(fb_zero_tree, hf_fb_zero_tag, tvb, offset, 4, ENC_ASCII|ENC_NA, wmem_packet_scope(), &message_tag_str);
proto_item_append_text(ti, ", Type: %s (%s)", message_tag_str, 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(fb_zero_tree, hf_fb_zero_tag_number, tvb, offset, 2, ENC_LITTLE_ENDIAN);
tag_number = tvb_get_letohs(tvb, offset);
offset += 2;
proto_tree_add_item(fb_zero_tree, hf_fb_zero_padding, tvb, offset, 2, ENC_NA);
offset += 2;
offset = dissect_fb_zero_tag(tvb, pinfo, fb_zero_tree, offset, tag_number);
} else {
proto_tree_add_item(fb_zero_tree, hf_fb_zero_unknown, tvb, offset, length, ENC_NA);
offset += length;
}
}
return offset;
}
static int
dissect_fb_zero_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
void *data _U_)
{
proto_item *ti, *ti_puflags;
proto_tree *fb_zero_tree, *puflags_tree;
guint offset = 0;
guint8 puflags;
guint32 message_tag, version;
if (tvb_captured_length(tvb) < FBZERO_MIN_LENGTH)
return 0;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "FB_ZERO");
ti = proto_tree_add_item(tree, proto_fb_zero, tvb, 0, -1, ENC_NA);
fb_zero_tree = proto_item_add_subtree(ti, ett_fb_zero);
/* Public Flags */
ti_puflags = proto_tree_add_item(fb_zero_tree, hf_fb_zero_puflags, tvb, offset, 1, ENC_LITTLE_ENDIAN);
puflags_tree = proto_item_add_subtree(ti_puflags, ett_fb_zero_puflags);
proto_tree_add_item(puflags_tree, hf_fb_zero_puflags_vrsn, tvb, offset, 1, ENC_NA);
proto_tree_add_item(puflags_tree, hf_fb_zero_puflags_unknown, tvb, offset, 1, ENC_LITTLE_ENDIAN);
puflags = tvb_get_guint8(tvb, offset);
offset += 1;
if(puflags & PUFLAGS_VRSN){
version = tvb_get_ntoh24(tvb, offset);
if(version == VERSION_QTV){
proto_tree_add_item(fb_zero_tree, hf_fb_zero_version, tvb, offset, 3, ENC_ASCII|ENC_NA);
offset += 3;
}
}
/* Unencrypt Message (Handshake or Connection Close...) */
message_tag = tvb_get_ntohl(tvb, offset+5);
if (message_tag == MTAG_CHLO || message_tag == MTAG_SNOM) {
offset = dissect_fb_zero_unencrypt(tvb, pinfo, fb_zero_tree, offset, 1);
}else { /* Payload... (encrypted... TODO FIX !) */
col_add_str(pinfo->cinfo, COL_INFO, "Payload (Encrypted)");
proto_tree_add_item(fb_zero_tree, hf_fb_zero_payload, tvb, offset, -1, ENC_NA);
}
return offset;
}
static int
dissect_fb_zero(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
void *data _U_)
{
return dissect_fb_zero_common(tvb, pinfo, tree, NULL);
}
static gboolean dissect_fb_zero_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
conversation_t *conversation = NULL;
int offset = 0;
guint32 version, length, message_tag;
/* Verify packet size (Flag (1 byte) + Version (3bytes) + Flag (1 byte) + length (4 bytes) + Tag (4 bytes)) */
if (tvb_captured_length(tvb) < 13)
{
return FALSE;
}
/* Flag */
offset += 1;
/* Version */
version = tvb_get_ntoh24(tvb, offset);
offset += 3;
/* Flag */
offset += 1;
/* length */
length = tvb_get_letohl(tvb, offset);
offset += 4;
/* (message) tag */
message_tag = tvb_get_ntohl(tvb, offset);
if (version == VERSION_QTV && length <= tvb_reported_length(tvb) && (message_tag == MTAG_CHLO || message_tag == MTAG_SNOM)) {
conversation = find_or_create_conversation(pinfo);
conversation_set_dissector(conversation, fb_zero_handle);
dissect_fb_zero(tvb, pinfo, tree, data);
return TRUE;
}
return FALSE;
}
void
proto_register_fb_zero(void)
{
static hf_register_info hf[] = {
{ &hf_fb_zero_puflags,
{ "Public Flags", "fb_zero.puflags",
FT_UINT8, BASE_HEX, NULL, 0x0,
"Specifying per-packet public flags", HFILL }
},
{ &hf_fb_zero_puflags_vrsn,
{ "Version", "fb_zero.puflags.version",
FT_BOOLEAN, 8, TFS(&tfs_yes_no), PUFLAGS_VRSN,
"Signifies that this packet also contains the version of the FB Zero protocol", HFILL }
},
{ &hf_fb_zero_puflags_unknown,
{ "Unknown", "fb_zero.puflags.unknown",
FT_UINT8, BASE_HEX, NULL, PUFLAGS_UNKN,
NULL, HFILL }
},
{ &hf_fb_zero_version,
{ "Version", "fb_zero.version",
FT_STRING, BASE_NONE, NULL, 0x0,
"32 bit opaque tag that represents the version of the ZB Zero (Always QTV)", HFILL }
},
{ &hf_fb_zero_length,
{ "Length", "fb_zero.length",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_tag,
{ "Tag", "fb_zero.tag",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_tag_number,
{ "Tag Number", "fb_zero.tag_number",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_tags,
{ "Tag/value", "fb_zero.tags",
FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_tag_type,
{ "Tag Type", "fb_zero.tag_type",
FT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_tag_offset_end,
{ "Tag offset end", "fb_zero.tag_offset_end",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_tag_length,
{ "Tag length", "fb_zero.tag_offset_length",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_tag_value,
{ "Tag/value", "fb_zero.tag_value",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_tag_sni,
{ "Server Name Indication", "fb_zero.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_fb_zero_tag_vers,
{ "Version", "fb_zero.tag.version",
FT_STRING, BASE_NONE, NULL, 0x0,
"Version of FB Zero supported", HFILL }
},
{ &hf_fb_zero_tag_sno,
{ "Server nonce", "fb_zero.tag.sno",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_tag_aead,
{ "Authenticated encryption algorithms", "fb_zero.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_fb_zero_tag_scid,
{ "Server Config ID", "fb_zero.tag.scid",
FT_BYTES, BASE_NONE, NULL, 0x0,
"An opaque, 16-byte identifier for this server config", HFILL }
},
{ &hf_fb_zero_tag_time,
{ "Time", "fb_zero.tag.time",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_tag_alpn,
{ "ALPN", "fb_zero.tag.alpn",
FT_STRING, BASE_NONE, NULL, 0x0,
"Application-Layer Protocol Negotiation supported", HFILL }
},
{ &hf_fb_zero_tag_pubs,
{ "Public value", "fb_zero.tag.pubs",
FT_UINT24, BASE_DEC_HEX, NULL, 0x0,
"A list of public values, 24-bit, little-endian length prefixed", HFILL }
},
{ &hf_fb_zero_tag_kexs,
{ "Key exchange algorithms", "fb_zero.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_fb_zero_tag_nonc,
{ "Client nonce", "fb_zero.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_fb_zero_tag_unknown,
{ "Unknown tag", "fb_zero.tag.unknown",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_padding,
{ "Padding", "fb_zero.padding",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_fb_zero_payload,
{ "Payload", "fb_zero.payload",
FT_BYTES, BASE_NONE, NULL, 0x0,
"Fb Zero Payload..", HFILL }
},
{ &hf_fb_zero_unknown,
{ "Unknown", "fb_zero.unknown",
FT_BYTES, BASE_NONE, NULL, 0x0,
"Unknown Data", HFILL }
},
};
static gint *ett[] = {
&ett_fb_zero,
&ett_fb_zero_puflags,
&ett_fb_zero_prflags,
&ett_fb_zero_ft,
&ett_fb_zero_ftflags,
&ett_fb_zero_tag_value
};
static ei_register_info ei[] = {
{ &ei_fb_zero_tag_undecoded, { "fb_zero.tag.undecoded", PI_UNDECODED, PI_NOTE, "Dissector for FB Zero Tag code not implemented, Contact Wireshark developers if you want this supported", EXPFILL }},
{ &ei_fb_zero_tag_length, { "fb_zero.tag.length.truncated", PI_MALFORMED, PI_NOTE, "Truncated Tag Length...", EXPFILL }},
{ &ei_fb_zero_tag_unknown, { "fb_zero.tag.unknown.data", PI_UNDECODED, PI_NOTE, "Unknown Data", EXPFILL }},
};
expert_module_t *expert_fb_zero;
proto_fb_zero = proto_register_protocol("(Facebook) Zero Protocol", "FBZERO", "fb_zero");
fb_zero_handle = register_dissector("fb_zero", dissect_fb_zero, proto_fb_zero);
proto_register_field_array(proto_fb_zero, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_fb_zero = expert_register_protocol(proto_fb_zero);
expert_register_field_array(expert_fb_zero, ei, array_length(ei));
}
void
proto_reg_handoff_fb_zero(void)
{
heur_dissector_add("tcp", dissect_fb_zero_heur, "FBZero (QUIC) over TCP", "fb_zero", proto_fb_zero, HEURISTIC_ENABLE);
}
/*
* Editor modelines - https://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:
*/
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