diff options
Diffstat (limited to 'epan/dissectors/packet-edonkey.c')
| -rw-r--r-- | epan/dissectors/packet-edonkey.c | 3419 |
1 files changed, 3419 insertions, 0 deletions
diff --git a/epan/dissectors/packet-edonkey.c b/epan/dissectors/packet-edonkey.c new file mode 100644 index 00000000..3cb1a64f --- /dev/null +++ b/epan/dissectors/packet-edonkey.c @@ -0,0 +1,3419 @@ +/* packet-edonkey.c + * Routines for edonkey dissection + * Copyright 2003, Xuan Zhang <xz@aemail4u.com> + * Copyright 2007, Stefano Picerno <stefano.picerno@gmail.com> + * Copyright 2008, Stefan Monhof <stefan.monhof@stud.uni-due.de> + * + * eDonkey dissector based on protocol descriptions from mldonkey: + * ftp://ftp.chatnfiles.com/gnu-mirror/savannah/files/mldonkey/docs/Edonkey-Overnet/edonkey-protocol.txt + * ftp://ftp.chatnfiles.com/gnu-mirror/savannah/files/mldonkey/docs/Edonkey-Overnet/overnet-protocol.txt + * + * Kademlia dissector based on source code inspection of aMule 2.1.3 and eMule 0.48a + * Modified and added on the basis of information and names from the eMule 0.50 source code + * found at http://www.emule-project.net + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "config.h" + +#include <stdlib.h> + +#include <epan/packet.h> +#include <epan/prefs.h> +#include <epan/expert.h> +#include "packet-edonkey.h" +#include "packet-tcp.h" + +void proto_reg_handoff_edonkey(void); + +static dissector_handle_t edonkey_tcp_handle; +static dissector_handle_t edonkey_udp_handle; + +static int proto_edonkey = -1; + +static int hf_edonkey_message = -1; +static int hf_edonkey_protocol = -1; +static int hf_edonkey_message_length = -1; +static int hf_edonkey_message_type = -1; +static int hf_edonkey_client_hash = -1; +static int hf_edonkey_server_hash = -1; +static int hf_edonkey_file_hash = -1; +static int hf_edonkey_client_id = -1; +static int hf_edonkey_metatag_namesize = -1; +static int hf_edonkey_metatag_type = -1; +static int hf_edonkey_metatag = -1; +static int hf_edonkey_metatag_name = -1; +static int hf_edonkey_metatag_id = -1; +static int hf_edonkey_ip = -1; +static int hf_edonkey_port = -1; +static int hf_edonkey_hash = -1; +static int hf_edonkey_part_count = -1; +static int hf_edonkey_file_status = -1; +static int hf_edonkey_directory = -1; +static int hf_edonkey_string = -1; +static int hf_edonkey_string_length = -1; +static int hf_edonkey_fileinfo = -1; +static int hf_edonkey_clientinfo = -1; +static int hf_edonkey_serverinfo = -1; +static int hf_emule_aich_partnum = -1; +static int hf_emule_aich_root_hash = -1; +static int hf_emule_aich_hash_entry = -1; +static int hf_emule_aich_hash_id = -1; +static int hf_emule_aich_hash = -1; +static int hf_emule_multipacket_entry = -1; +static int hf_emule_multipacket_opcode = -1; +static int hf_emule_source_count = -1; +static int hf_emule_zlib = -1; +static int hf_emule_public_key = -1; +static int hf_emule_signature = -1; +static int hf_emule_sourceOBFU = -1; +static int hf_overnet_peer = -1; + +static int hf_edonkey_unparsed_data_length = -1; +static int hf_kademlia = -1; +static int hf_kademlia_search_condition = -1; +static int hf_kademlia_search_condition_argument_uint32 = -1; +static int hf_kademlia_search_condition_argument_uint64 = -1; +/* static int hf_kademlia_unparsed_data_length = -1; */ +static int hf_kademlia_peer = -1; +static int hf_kademlia_peer_id = -1; +static int hf_kademlia_hash = -1; +static int hf_kademlia_file_id = -1; +static int hf_kademlia_keyword_hash = -1; +static int hf_kademlia_recipients_id = -1; +static int hf_kademlia_sender_id = -1; +static int hf_kademlia_target_id = -1; +static int hf_kademlia_distance = -1; +static int hf_kademlia_version = -1; +static int hf_kademlia_peertype = -1; +static int hf_kademlia_tag_float = -1; +static int hf_kademlia_tag_uint64 = -1; +static int hf_kademlia_tag_uint32 = -1; +static int hf_kademlia_tag_ipv4 = -1; +static int hf_kademlia_tag_uint16 = -1; +static int hf_kademlia_tag_uint8 = -1; +static int hf_kademlia_tag_hash = -1; +static int hf_kademlia_tag_bsob = -1; +static int hf_kademlia_tag_string = -1; +static int hf_kademlia_udp_port = -1; +static int hf_kademlia_tcp_port = -1; +static int hf_kademlia_ip = -1; +static int hf_kademlia_tag_name = -1; +static int hf_kademlia_tag_name_length = -1; +static int hf_kademlia_tag_type = -1; +static int hf_kademlia_request_type = -1; +static int hf_kademlia_search_expression_type = -1; +static int hf_kademlia_search_bool_op = -1; + +/* Generated from convert_proto_tree_add_text.pl */ +static int hf_edonkey_list_size = -1; +static int hf_edonkey_meta_tag_value_revision = -1; +static int hf_edonkey_meta_tag_value_uint = -1; +static int hf_edonkey_boolean_array_length = -1; +static int hf_edonkey_blob_length = -1; +static int hf_edonkey_kademlia_string = -1; +static int hf_emule_public_key_length = -1; +static int hf_emule_signature_length = -1; +static int hf_edonkey_obfuscation_settings = -1; +static int hf_edonkey_start_offset = -1; +static int hf_edonkey_start_offset_64 = -1; +static int hf_edonkey_end_offset = -1; +static int hf_edonkey_end_offset_64 = -1; +static int hf_edonkey_emule_file_length = -1; +static int hf_edonkey_overnet_peer_type = -1; +static int hf_edonkey_more_search_file_results = -1; +static int hf_edonkey_file_size = -1; +static int hf_edonkey_large_file_size = -1; +static int hf_edonkey_number_of_users = -1; +static int hf_edonkey_number_of_files = -1; +static int hf_edonkey_message_data = -1; +static int hf_edonkey_emule_version = -1; +static int hf_edonkey_emule_queue_ranking = -1; +static int hf_edonkey_emule_ident_state = -1; +static int hf_edonkey_emule_rndchallenge = -1; +static int hf_edonkey_emule_sig_ip_used = -1; +static int hf_edonkey_packed_length = -1; +static int hf_edonkey_compressed_message_data = -1; +static int hf_edonkey_challenge = -1; +static int hf_edonkey_max_number_of_users = -1; +static int hf_edonkey_search_type = -1; +static int hf_edonkey_search_range_min = -1; +static int hf_edonkey_search_range_max = -1; +static int hf_edonkey_kademlia_uload = -1; +static int hf_edonkey_kademlia_start_position = -1; +static int hf_edonkey_kademlia_filesize = -1; +static int hf_edonkey_kademlia_restrictive = -1; +static int hf_edonkey_broken_compressed_data = -1; +static int hf_edonkey_search_limit = -1; +static int hf_edonkey_search_limit_type = -1; +static int hf_edonkey_search_ops = -1; +static int hf_edonkey_user_hash_length = -1; + +static gint ett_kademlia_tag = -1; +static gint ett_edonkey_listitem = -1; +static gint ett_kademlia_search_expression = -1; +static gint ett_edonkey = -1; +static gint ett_edonkey_message = -1; +static gint ett_edonkey_metatag = -1; +static gint ett_edonkey_search = -1; +static gint ett_edonkey_fileinfo = -1; +static gint ett_edonkey_serverinfo = -1; +static gint ett_edonkey_clientinfo = -1; +static gint ett_emule_aichhash = -1; +static gint ett_emule_multipacket = -1; +static gint ett_emule_zlib = -1; +static gint ett_overnet_peer = -1; +static gint ett_emule_sourceOBFU = -1; + +static expert_field ei_kademlia_tag_type = EI_INIT; +static expert_field ei_kademlia_search_expression_type = EI_INIT; + +#define EDONKEY_TCP_PORT_RANGE "4661-4663" /* Not IANA registered */ +#define EDONKEY_UDP_PORT_RANGE "4665,4672" /* Not IANA registered */ + +/* desegmentation of eDonkey over TCP */ +static gboolean edonkey_desegment = TRUE; + +static const value_string kademlia_msgs[] = { + { KADEMLIA2_BOOTSTRAP_REQ ,"KADEMLIA2_BOOTSTRAP_REQ" }, + { KADEMLIA2_BOOTSTRAP_RES ,"KADEMLIA2_BOOTSTRAP_RES" }, + { KADEMLIA2_HELLO_REQ ,"KADEMLIA2_HELLO_REQ" }, + { KADEMLIA2_HELLO_RES ,"KADEMLIA2_HELLO_RES" }, + { KADEMLIA2_PUBLISH_KEY_REQ ,"KADEMLIA2_PUBLISH_KEY_REQ" }, + { KADEMLIA2_PUBLISH_NOTES_REQ ,"KADEMLIA2_PUBLISH_NOTES_REQ" }, + { KADEMLIA2_PUBLISH_RES ,"KADEMLIA2_PUBLISH_RES" }, + { KADEMLIA2_PUBLISH_SOURCE_REQ ,"KADEMLIA2_PUBLISH_SOURCE_REQ" }, + { KADEMLIA2_REQ ,"KADEMLIA2_REQ" }, + { KADEMLIA2_RES ,"KADEMLIA2_RES" }, + { KADEMLIA2_SEARCH_KEY_REQ ,"KADEMLIA2_SEARCH_KEY_REQ" }, + { KADEMLIA2_SEARCH_NOTES_REQ ,"KADEMLIA2_SEARCH_NOTES_REQ" }, + { KADEMLIA2_SEARCH_RES ,"KADEMLIA2_SEARCH_RES" }, + { KADEMLIA2_SEARCH_SOURCE_REQ ,"KADEMLIA2_SEARCH_SOURCE_REQ" }, + { KADEMLIA_BOOTSTRAP_REQ ,"KADEMLIA_BOOTSTRAP_REQ" }, + { KADEMLIA_BOOTSTRAP_RES ,"KADEMLIA_BOOTSTRAP_RES" }, + { KADEMLIA_CALLBACK_REQ ,"KADEMLIA_CALLBACK_REQ" }, + { KADEMLIA_FINDBUDDY_REQ ,"KADEMLIA_FINDBUDDY_REQ" }, + { KADEMLIA_FINDBUDDY_RES ,"KADEMLIA_FINDBUDDY_RES" }, + { KADEMLIA_FIREWALLED_ACK_RES ,"KADEMLIA_FIREWALLED_ACK_RES" }, + { KADEMLIA_FIREWALLED_REQ ,"KADEMLIA_FIREWALLED_REQ" }, + { KADEMLIA_FIREWALLED_RES ,"KADEMLIA_FIREWALLED_RES" }, + { KADEMLIA_HELLO_REQ ,"KADEMLIA_HELLO_REQ" }, + { KADEMLIA_HELLO_RES ,"KADEMLIA_HELLO_RES" }, + { KADEMLIA_PUBLISH_NOTES_REQ ,"KADEMLIA_PUBLISH_NOTES_REQ" }, + { KADEMLIA_PUBLISH_NOTES_RES ,"KADEMLIA_PUBLISH_NOTES_RES" }, + { KADEMLIA_PUBLISH_REQ ,"KADEMLIA_PUBLISH_REQ" }, + { KADEMLIA_PUBLISH_RES ,"KADEMLIA_PUBLISH_RES" }, + { KADEMLIA_REQ ,"KADEMLIA_REQ" }, + { KADEMLIA_RES ,"KADEMLIA_RES" }, + { KADEMLIA_SEARCH_NOTES_REQ ,"KADEMLIA_SEARCH_NOTES_REQ" }, + { KADEMLIA_SEARCH_NOTES_RES ,"KADEMLIA_SEARCH_NOTES_RES" }, + { KADEMLIA_SEARCH_REQ ,"KADEMLIA_SEARCH_REQ" }, + { KADEMLIA_SEARCH_RES ,"KADEMLIA_SEARCH_RES" }, + { 0, NULL } +}; + +static const value_string kademlia_tag_types[] = { + { KADEMLIA_TAGTYPE_HASH ,"TAGTYPE_HASH" }, + { KADEMLIA_TAGTYPE_STRING ,"TAGTYPE_STRING" }, + { KADEMLIA_TAGTYPE_UINT32 ,"TAGTYPE_UINT32" }, + { KADEMLIA_TAGTYPE_FLOAT32 ,"TAGTYPE_FLOAT32" }, + { KADEMLIA_TAGTYPE_BOOL ,"TAGTYPE_BOOL" }, + { KADEMLIA_TAGTYPE_BOOLARRAY ,"TAGTYPE_BOOLARRAY" }, + { KADEMLIA_TAGTYPE_BLOB ,"TAGTYPE_BLOB" }, + { KADEMLIA_TAGTYPE_UINT16 ,"TAGTYPE_UINT16" }, + { KADEMLIA_TAGTYPE_UINT8 ,"TAGTYPE_UINT8" }, + { KADEMLIA_TAGTYPE_BSOB ,"TAGTYPE_BSOB" }, + { KADEMLIA_TAGTYPE_UINT64 ,"TAGTYPE_UINT64" }, + + { KADEMLIA_TAGTYPE_STR1 ,"TAGTYPE_STR1" }, + { KADEMLIA_TAGTYPE_STR2 ,"TAGTYPE_STR2" }, + { KADEMLIA_TAGTYPE_STR3 ,"TAGTYPE_STR3" }, + { KADEMLIA_TAGTYPE_STR4 ,"TAGTYPE_STR4" }, + { KADEMLIA_TAGTYPE_STR5 ,"TAGTYPE_STR5" }, + { KADEMLIA_TAGTYPE_STR6 ,"TAGTYPE_STR6" }, + { KADEMLIA_TAGTYPE_STR7 ,"TAGTYPE_STR7" }, + { KADEMLIA_TAGTYPE_STR8 ,"TAGTYPE_STR8" }, + { KADEMLIA_TAGTYPE_STR9 ,"TAGTYPE_STR9" }, + { KADEMLIA_TAGTYPE_STR10 ,"TAGTYPE_STR10" }, + { KADEMLIA_TAGTYPE_STR11 ,"TAGTYPE_STR11" }, + { KADEMLIA_TAGTYPE_STR12 ,"TAGTYPE_STR12" }, + { KADEMLIA_TAGTYPE_STR13 ,"TAGTYPE_STR13" }, + { KADEMLIA_TAGTYPE_STR14 ,"TAGTYPE_STR14" }, + { KADEMLIA_TAGTYPE_STR15 ,"TAGTYPE_STR15" }, + { KADEMLIA_TAGTYPE_STR16 ,"TAGTYPE_STR16" }, + { KADEMLIA_TAGTYPE_STR17 ,"TAGTYPE_STR17" }, + { KADEMLIA_TAGTYPE_STR18 ,"TAGTYPE_STR18" }, + { KADEMLIA_TAGTYPE_STR19 ,"TAGTYPE_STR19" }, + { KADEMLIA_TAGTYPE_STR20 ,"TAGTYPE_STR20" }, + { KADEMLIA_TAGTYPE_STR21 ,"TAGTYPE_STR21" }, + { KADEMLIA_TAGTYPE_STR22 ,"TAGTYPE_STR22" }, + { 0, NULL } +}; + +static const value_string kademlia_tags[] = { + { KADEMLIA_TAG_BUDDYHASH ,"TAG_BUDDYHASH" }, + { KADEMLIA_TAG_CLIENTLOWID ,"TAG_CLIENTLOWID" }, + { KADEMLIA_TAG_COLLECTION ,"TAG_COLLECTION" }, + { KADEMLIA_TAG_COPIED ,"TAG_COPIED" }, + { KADEMLIA_TAG_DESCRIPTION ,"TAG_DESCRIPTION" }, + { KADEMLIA_TAG_ENCRYPTION ,"TAG_ENCRYPTION" }, + { KADEMLIA_TAG_FAIL ,"TAG_FAIL" }, + { KADEMLIA_TAG_FILECOMMENT ,"TAG_FILECOMMENT" }, + { KADEMLIA_TAG_FILE_COUNT ,"TAG_FILE_COUNT" }, + { KADEMLIA_TAG_FILEFORMAT ,"TAG_FILEFORMAT" }, + { KADEMLIA_TAG_FILENAME ,"TAG_FILENAME" }, + { KADEMLIA_TAG_FILERATING ,"TAG_FILERATING" }, + { KADEMLIA_TAG_FILESIZE_HI ,"TAG_FILESIZE_HI" }, + { KADEMLIA_TAG_FILESIZE ,"TAG_FILESIZE" }, + { KADEMLIA_TAG_FILETYPE ,"TAG_FILETYPE" }, + { KADEMLIA_TAG_GAP_END ,"TAG_GAP_END" }, + { KADEMLIA_TAG_GAP_START ,"TAG_GAP_START" }, + { KADEMLIA_TAG_IP_ADDRESS ,"TAG_IP_ADDRESS" }, + { KADEMLIA_TAG_MEDIA_ALBUM ,"TAG_MEDIA_ALBUM" }, + { KADEMLIA_TAG_MEDIA_ARTIST ,"TAG_MEDIA_ARTIST" }, + { KADEMLIA_TAG_MEDIA_BITRATE ,"TAG_MEDIA_BITRATE"}, + { KADEMLIA_TAG_MEDIA_CODEC ,"TAG_MEDIA_CODEC" }, + { KADEMLIA_TAG_MEDIA_LENGTH ,"TAG_MEDIA_LENGTH" }, + { KADEMLIA_TAG_MEDIA_TITLE ,"TAG_MEDIA_TITLE" }, + { KADEMLIA_TAG_PART_HASH ,"TAG_PART_HASH" }, + { KADEMLIA_TAG_PART_PATH ,"TAG_PART_PATH" }, + { KADEMLIA_TAG_PARTS ,"TAG_PARTS" }, + { KADEMLIA_TAG_PERMISSIONS ,"TAG_PERMISSIONS" }, + { KADEMLIA_TAG_PING ,"TAG_PING" }, + { KADEMLIA_TAG_PORT ,"TAG_PORT" }, + { KADEMLIA_TAG_PREFERENCE ,"TAG_PREFERENCE" }, + { KADEMLIA_TAG_PRIORITY ,"TAG_PRIORITY" }, + { KADEMLIA_TAG_QTIME ,"TAG_QTIME" }, + { KADEMLIA_TAG_SERVERIP ,"TAG_SERVERIP" }, + { KADEMLIA_TAG_SERVERPORT ,"TAG_SERVERPORT" }, + { KADEMLIA_TAG_SOURCEIP ,"TAG_SOURCEIP" }, + { KADEMLIA_TAG_SOURCEPORT ,"TAG_SOURCEPORT" }, + { KADEMLIA_TAG_SOURCES ,"TAG_SOURCES" }, + { KADEMLIA_TAG_SOURCETYPE ,"TAG_SOURCETYPE" }, + { KADEMLIA_TAG_SOURCEUPORT ,"TAG_SOURCEUPORT" }, + { KADEMLIA_TAG_STATUS ,"TAG_STATUS" }, + { KADEMLIA_TAG_TEMPFILE ,"TAG_TEMPFILE" }, + { KADEMLIA_TAG_USER_COUNT ,"TAG_USER_COUNT" }, + { KADEMLIA_TAG_VERSION ,"TAG_VERSION" }, + + { 0, NULL } +}; + +static const value_string edonkey_protocols[] = { + { EDONKEY_PROTO_EDONKEY, "eDonkey" }, + { EDONKEY_PROTO_EMULE_EXT, "eMule Extensions" }, + { EDONKEY_PROTO_EMULE_COMP, "eMule Compressed" }, + { EDONKEY_PROTO_KADEMLIA, "Kademlia" }, + { EDONKEY_PROTO_KADEMLIA_COMP, "Kademlia Compressed" }, + { EDONKEY_PROTO_ADU_KADEMLIA, "KAdu" }, + { EDONKEY_PROTO_ADU_KADEMLIA_COMP, "KAdu Compressed" }, + { 0, NULL } +}; + +static const value_string edonkey_tcp_msgs[] = { + { EDONKEY_MSG_HELLO, "Hello" }, + { EDONKEY_MSG_BAD_PROTO, "Bad Proto" }, + { EDONKEY_MSG_GET_SERVER_LIST, "Get Server List" }, + { EDONKEY_MSG_OFFER_FILES, "Offer Files" }, + { EDONKEY_MSG_SEARCH_FILES, "Search Files" }, + { EDONKEY_MSG_DISCONNECT, "Disconnect" }, + { EDONKEY_MSG_GET_SOURCES, "Get Sources" }, + { EDONKEY_MSG_GET_SOURCES_OBFU, "Get Sources Obfuscation" }, + { EDONKEY_MSG_SEARCH_USER, "Search User" }, + { EDONKEY_MSG_CLIENT_CB_REQ, "Client Callback Request" }, + { EDONKEY_MSG_MORE_RESULTS, "More Results" }, + { EDONKEY_MSG_SERVER_LIST, "Server List" }, + { EDONKEY_MSG_SEARCH_FILE_RESULTS, "Search File Results" }, + { EDONKEY_MSG_SERVER_STATUS, "Server Status" }, + { EDONKEY_MSG_SERVER_CB_REQ, "Server Callback Request" }, + { EDONKEY_MSG_CALLBACK_FAIL, "Callback Fail" }, + { EDONKEY_MSG_SERVER_MESSAGE, "Server Message" }, + { EDONKEY_MSG_ID_CHANGE, "ID Change" }, + { EDONKEY_MSG_SERVER_INFO_DATA, "Server Info Data" }, + { EDONKEY_MSG_FOUND_SOURCES, "Found Sources" }, + { EDONKEY_MSG_FOUND_SOURCES_OBFU, "Found Sources Obfuscation"}, + { EDONKEY_MSG_SEARCH_USER_RESULTS, "Search User Results" }, + { EDONKEY_MSG_SENDING_PART, "Sending Part" }, + { EDONKEY_MSG_REQUEST_PARTS, "Request Parts" }, + { EDONKEY_MSG_NO_SUCH_FILE, "No Such File" }, + { EDONKEY_MSG_END_OF_DOWNLOAD, "End of Download" }, + { EDONKEY_MSG_VIEW_FILES, "View Files" }, + { EDONKEY_MSG_VIEW_FILES_ANSWER, "View Files Answer" }, + { EDONKEY_MSG_HELLO_ANSWER, "Hello Answer" }, + { EDONKEY_MSG_NEW_CLIENT_ID, "New Client ID" }, + { EDONKEY_MSG_CLIENT_MESSAGE, "Client Message" }, + { EDONKEY_MSG_FILE_STATUS_REQUEST, "File Status Request" }, + { EDONKEY_MSG_FILE_STATUS, "File Status" }, + { EDONKEY_MSG_HASHSET_REQUEST, "Hashset Request" }, + { EDONKEY_MSG_HASHSET_ANSWER, "Hashset Answer" }, + { EDONKEY_MSG_SLOT_REQUEST, "Slot Request" }, + { EDONKEY_MSG_SLOT_GIVEN, "Slot Given" }, + { EDONKEY_MSG_SLOT_RELEASE, "Slot Release" }, + { EDONKEY_MSG_SLOT_TAKEN, "Slot Taken" }, + { EDONKEY_MSG_FILE_REQUEST, "File Request" }, + { EDONKEY_MSG_FILE_REQUEST_ANSWER, "File Request Answer" }, + { EDONKEY_MSG_GET_SHARED_DIRS, "Get Shared Directories" }, + { EDONKEY_MSG_GET_SHARED_FILES, "Get Shared Files" }, + { EDONKEY_MSG_SHARED_DIRS, "Shared Directories" }, + { EDONKEY_MSG_SHARED_FILES, "Shared Files" }, + { EDONKEY_MSG_SHARED_DENIED, "Shared Denied" }, + { 0, NULL } +}; + +static const value_string emule_tcp_msgs[] = { + { EMULE_MSG_HELLO, "Hello" }, + { EMULE_MSG_HELLO_ANSWER, "Hello Answer" }, + { EMULE_MSG_DATA_COMPRESSED, "Data Compressed" }, + { EMULE_MSG_QUEUE_RANKING, "Queue Ranking" }, + { EMULE_MSG_FILE_DESC, "File Description" }, + { EMULE_MSG_SOURCES_REQUEST, "Sources Request" }, + { EMULE_MSG_SOURCES_ANSWER, "Sources Answer" }, + { EMULE_MSG_SIGNATURE, "Signature" }, + { EMULE_MSG_PUBLIC_KEY, "Public Key" }, + { EMULE_MSG_SEC_IDENT_STATE, "Second Identification State" }, + { EMULE_MSG_MULTIPACKET, "MultiPacket" }, + { EMULE_MSG_MULTIPACKET_EXT, "MultiPacketExt" }, + { EMULE_MSG_MULTIPACKET_ANSWER, "MultiPacket Answer" }, + { EMULE_MSG_CALLBACK, "Callback" }, + { EMULE_MSG_AICH_REQUEST, "AICH Hashset Request" }, + { EMULE_MSG_AICH_ANSWER, "AICH Hashset Answer" }, + { EMULE_MSG_AICHFILEHASH_ANSWER, "AICH Master Hash Request" }, + { EMULE_MSG_AICHFILEHASH_REQUEST, "AICH Master Hash Answer" }, + { EMULE_MSG_DATA_COMPRESSED_64, "Data Compressed (64bit)" }, + { EMULE_MSG_SENDING_PART_64, "Sending Part (64bit)" }, + { EMULE_MSG_REQUEST_PARTS_64, "Request Parts (64bit)" }, + { 0, NULL } +}; + +static const value_string edonkey_udp_msgs[] = { + { EDONKEY_MSG_UDP_SERVER_STATUS_REQUEST, "Server Status Request" }, + { EDONKEY_MSG_UDP_SERVER_STATUS, "Server Status" }, + { EDONKEY_MSG_UDP_SEARCH_FILE, "Search File" }, + { EDONKEY_MSG_UDP_SEARCH_FILE_RESULTS, "Search File Results" }, + { EDONKEY_MSG_UDP_GET_SOURCES, "Get Sources" }, + { EDONKEY_MSG_UDP_FOUND_SOURCES, "Found Sources" }, + { EDONKEY_MSG_UDP_CALLBACK_REQUEST, "Callback Request" }, + { EDONKEY_MSG_UDP_CALLBACK_FAIL, "Callback Fail" }, + { EDONKEY_MSG_UDP_SERVER_LIST, "Server List" }, + { EDONKEY_MSG_UDP_GET_SERVER_INFO, "Get Server Info" }, + { EDONKEY_MSG_UDP_SERVER_INFO, "Server Info" }, + { EDONKEY_MSG_UDP_GET_SERVER_LIST, "Get Server List" }, + + /* eMule Extensions */ + { EMULE_MSG_UDP_REASKFILEPING, "Reask File Ping" }, + { EMULE_MSG_UDP_REASKACK, "Reask ACK" }, + { EMULE_MSG_UDP_FILE_NOT_FOUND, "File not found" }, + { EMULE_MSG_UDP_QUEUE_FULL, "Queue Full" }, + + /* Overnet Extensions */ + { OVERNET_MSG_UDP_CONNECT, "Connect" }, + { OVERNET_MSG_UDP_CONNECT_REPLY, "Connect Reply" }, + { OVERNET_MSG_UDP_PUBLICIZE, "Publicize" }, + { OVERNET_MSG_UDP_PUBLICIZE_ACK, "Publicize ACK" }, + { OVERNET_MSG_UDP_SEARCH, "Search" }, + { OVERNET_MSG_UDP_SEARCH_NEXT, "Search Next" }, + { OVERNET_MSG_UDP_SEARCH_INFO, "Search Info" }, + { OVERNET_MSG_UDP_SEARCH_RESULT, "Search Result" }, + { OVERNET_MSG_UDP_SEARCH_END, "Search End" }, + { OVERNET_MSG_UDP_PUBLISH, "Publish" }, + { OVERNET_MSG_UDP_PUBLISH_ACK, "Publish ACK" }, + { OVERNET_MSG_UDP_IDENTIFY_REPLY, "Identify Reply" }, + { OVERNET_MSG_UDP_IDENTIFY_ACK, "Identify ACK" }, + { OVERNET_MSG_UDP_FIREWALL_CONNECTION, "Firewall Connection" }, + { OVERNET_MSG_UDP_FIREWALL_CONNECTION_ACK, "Firewall Connection ACK" }, + { OVERNET_MSG_UDP_FIREWALL_CONNECTION_NACK, "Firewall Connection NACK" }, + { OVERNET_MSG_UDP_IP_QUERY, "IP Query" }, + { OVERNET_MSG_UDP_IP_QUERY_ANSWER, "IP Query Answer" }, + { OVERNET_MSG_UDP_IP_QUERY_END, "IP Query End" }, + { OVERNET_MSG_UDP_IDENTIFY, "Identify" }, + { 0, NULL } +}; + +static const value_string edonkey_special_tags[] = { + { EDONKEY_STAG_NAME, "Name" }, + { EDONKEY_STAG_SIZE, "Size" }, + { EDONKEY_STAG_TYPE, "Type" }, + { EDONKEY_STAG_FORMAT, "Format" }, + { EDONKEY_STAG_COLLECTION, "Collection" }, + { EDONKEY_STAG_PART_PATH, "Part Path" }, + { EDONKEY_STAG_PART_HASH, "Part Hash" }, + { EDONKEY_STAG_COPIED, "Copied" }, + { EDONKEY_STAG_GAP_START, "Gap Start" }, + { EDONKEY_STAG_GAP_END, "Gap End" }, + { EDONKEY_STAG_DESCRIPTION, "Description" }, + { EDONKEY_STAG_PING, "Ping" }, + { EDONKEY_STAG_FAIL, "Fail" }, + { EDONKEY_STAG_PREFERENCE, "Preference" }, + { EDONKEY_STAG_PORT, "Port" }, + { EDONKEY_STAG_IP, "IP" }, + { EDONKEY_STAG_VERSION, "Version" }, + { EDONKEY_STAG_TEMPFILE, "Temporary File" }, + { EDONKEY_STAG_PRIORITY, "Priority" }, + { EDONKEY_STAG_STATUS, "Status" }, + { EDONKEY_STAG_AVAILABILITY, "Availability" }, + { EDONKEY_STAG_QTIME, "Queue Time" }, + { EDONKEY_STAG_PARTS, "Parts" }, + { EDONKEY_STAG_MOD_VERSION, "Mod Version" }, + { EMULE_STAG_COMPRESSION, "Compression" }, + { EMULE_STAG_UDP_CLIENT_PORT, "UDP Client Port" }, + { EMULE_STAG_UDP_VERSION, "UDP Version" }, + { EMULE_STAG_SOURCE_EXCHANGE, "Source Exchange" }, + { EMULE_STAG_COMMENTS, "Comments" }, + { EMULE_STAG_EXTENDED_REQUEST, "Extended Request" }, + { EMULE_STAG_COMPATIBLE_CLIENT, "Compatible Client" }, + { EMULE_STAG_COMPLETE_SOURCES, "Complete Sources" }, + { EMULE_STAG_SIZE_HI, "Size (High Byte)" }, + { EMULE_STAG_SERVER_VERSION, "Server Version" }, + { EMULE_STAG_COMPAT_OPTIONS1, "Compatible Options" }, + { EMULE_STAG_UDPPORTS, "UDP Ports" }, + { EMULE_STAG_MISCOPTIONS1, "Misc Options 1" }, + { EMULE_STAG_VERSION, "eMule Version" }, + { EMULE_STAG_BUDDYIP, "Buddy IP" }, + { EMULE_STAG_BUDDYUDP, "Buddy UDP" }, + { EMULE_STAG_MISCOPTIONS2, "Misc Options 2" }, + { 0, NULL } +}; + +static const value_string edonkey_search_type_vals[] = { + { EDONKEY_SEARCH_BOOL, "Boolean" }, + { EDONKEY_SEARCH_NAME, "Name" }, + { EDONKEY_SEARCH_META, "Metadata" }, + { EDONKEY_SEARCH_LIMIT, "Limit" }, + { 0, NULL } +}; + +static const value_string edonkey_search_ext_type_vals[] = { + { 0, "BoolOp" }, + { 1, "String" }, + { 2, "MetaTag" }, + { 3, "32bitOp" }, + { 4, "64bitOp" }, + { 0, NULL } +}; + +static const value_string edonkey_search_ops[] = { + { EDONKEY_SEARCH_AND, "AND" }, + { EDONKEY_SEARCH_OR, "OR" }, + { EDONKEY_SEARCH_ANDNOT, "AND NOT" }, + { 0, NULL } +}; + +static const value_string edonkey_search_conds[] = { + { EDONKEY_SEARCH_MIN, "MIN" }, + { EDONKEY_SEARCH_MAX, "MAX" }, + { 0, NULL } +}; + +static const value_string kademlia_search_conds[] = { + { 0, "=" }, + { 1, ">" }, + { 2, "<" }, + { 3, ">=" }, + { 4, "<=" }, + { 5, "<>" }, + { 0, NULL } +}; + +static const value_string kademlia_versions[] = { + { KADEMLIA_VERSION1_46c, " (eMule <= 0.46c or compatibles)" }, + { KADEMLIA_VERSION2_47a, " (eMule 0.47a or compatibles)" }, + { KADEMLIA_VERSION3_47b, " (eMule 0.47b or compatibles)" }, + { KADEMLIA_VERSION5_48a, " (eMule 0.48a or compatibles)" }, + { KADEMLIA_VERSION6_49aBETA, " (eMule 0.49aBETA1 or compatibles)" }, + { KADEMLIA_VERSION7_49a, " (eMule 0.49a or compatibles)" }, + { 0, NULL } +}; + +static const value_string kademlia_parameter[] = { + { KADEMLIA_FIND_VALUE, " (Find Value)" }, + { KADEMLIA_STORE, " (Store)" }, + { KADEMLIA_FIND_NODE, " (Find Node)" }, + { 0, NULL } +}; + +static const value_string kademlia_tag_sourcetype[] = { + { 1, "HighID Source" }, + { 3, "Firewalled Kad Source" }, + { 4, ">4GB file HighID Source" }, + { 5, ">4GB file Firewalled Kad Source" }, + { 6, "Firewalled Source with Direct Callback (supports >4GB)" }, + { 0, NULL } +}; + +static const value_string kademlia_tag_encryption[] = { + { 1, "Supports Crypt Layer" }, + { 2, "Requests Crypt Layer" }, + { 3, "Supports & Requests Crypt Layer" }, + { 4, "Requires Crypt Layer" }, + { 5, "Supports & Requires Crypt Layer" }, + { 6, "Requests & Requires Crypt Layer" }, + { 7, "Supports, Requests & Requires Crypt Layer" }, + { 8, "Direct UDP Callback" }, + { 9, "Supports Crypt Layer; Direct UDP Callback" }, + { 10, "Requests Crypt Layer; Direct UDP Callback" }, + { 11, "Supports & Requests Crypt Layer; Direct UDP Callback" }, + { 12, "Requires Crypt Layer; Direct UDP Callback" }, + { 13, "Supports & Requires Crypt Layer; Direct UDP Callback" }, + { 14, "Requests & Requires Crypt Layer; Direct UDP Callback" }, + { 15, "Supports, Requests & Requires Crypt Layer; Direct UDP Callback" }, + { 0, NULL } +}; + +static const range_string emule_ident_state_rvals[] = { + { 0, 0, "nothing is needed" }, + { 1, 1, "signature is needed" }, + { 2, 255, "public key and signature are needed" }, + { 0, 0, NULL } +}; + +/* Dissects a generic eDonkey list */ +static int dissect_edonkey_list(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree, + int listnum_length, const char* listdesc, + int (*item_dissector)(tvbuff_t *, packet_info *, int, proto_tree *)) +{ + /* <List> ::= <List Size> <Item>* */ + guint32 listnum, i; + proto_tree *subtree; + proto_item* ti; + proto_item* list_ti; + int list_start_offset; + + list_start_offset = offset; + + switch (listnum_length) { + case -1: + case 1: + listnum = tvb_get_guint8(tvb, offset); + break; + + case -2: + listnum = tvb_get_ntohs(tvb, offset); + break; + + case 2: + listnum = tvb_get_letohs(tvb, offset); + break; + + case 4: + listnum = tvb_get_letohl(tvb, offset); + break; + + case -4: + listnum = tvb_get_ntohl(tvb, offset); + break; + + default: + /* Not Supported */ + return offset; + } + if (listnum_length < 0) + listnum_length = -listnum_length; + + /* keep the tree item object, its length will be set at the end of the function */ + list_ti = proto_tree_add_uint_format(tree, hf_edonkey_list_size, tvb, offset, listnum_length, listnum, "%s List Size: %u", listdesc, listnum); + + offset+= listnum_length; + + for (i=0; i<listnum; i++) + { + int item_start_offset; + + item_start_offset = offset; + subtree = proto_tree_add_subtree_format( tree, tvb, item_start_offset, 1, ett_edonkey_listitem, &ti, + "%s[%u/%u]", listdesc, i+1, listnum); + + /* dissect one list element */ + offset = (*item_dissector)(tvb, pinfo, offset, subtree); + /* Set the container node length */ + proto_item_set_len( ti, offset - item_start_offset ); + } + + /* Set the container node length */ + proto_item_set_len(list_ti, offset - list_start_offset ); + return offset; +} + +static gint lookup_str_index(gchar* str, gint length, const value_string *vs) +{ + gint i = 0; + + if (str == NULL) return -1; + + while (vs[i].strptr) { + if (g_ascii_strncasecmp(str, vs[i].strptr, length) == 0) + return i; + i++; + } + + return -1; +} + +static guint8 edonkey_metatag_name_get_type(tvbuff_t *tvb, gint start, gint length, guint8 special_tagtype) +{ + guint8 *tag_name; + + if (try_val_to_str(special_tagtype, edonkey_special_tags) == NULL) { + gint idx; + tag_name = tvb_get_string_enc(wmem_packet_scope(), tvb, start, length, ENC_ASCII|ENC_NA); + idx = lookup_str_index(tag_name, length, edonkey_special_tags); + if (idx < 0) + return EDONKEY_STAG_UNKNOWN; + else return edonkey_special_tags[idx].value; + } + else return special_tagtype; + +} + +static proto_item* edonkey_tree_add_metatag_name(proto_tree *tree, tvbuff_t *tvb, + gint start, gint length, guint8 special_tagtype) +{ + const gchar *tag_name; + + /* + * XXX - what, in the *protocol*, distinguishes integral from string + * tag names? Name length > 1 means "string"? Something else? + */ + tag_name = try_val_to_str(special_tagtype, edonkey_special_tags); + if (tag_name == NULL) { + return proto_tree_add_item(tree, hf_edonkey_metatag_name, tvb, start, length, ENC_ASCII); + } + else { + return proto_tree_add_uint_format(tree, hf_edonkey_metatag_id, tvb, start, length, + special_tagtype, "Meta Tag Name: %s (0x%02x)", + tag_name, special_tagtype); + } +} + +static int dissect_kademlia_search_condition_argument_uint64(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + proto_tree_add_item( tree, hf_kademlia_search_condition_argument_uint64, tvb, offset, 8, ENC_LITTLE_ENDIAN ); + return offset + 8; +} + +static int dissect_kademlia_search_condition_argument_uint32(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + proto_tree_add_item( tree, hf_kademlia_search_condition_argument_uint32, tvb, offset, 4, ENC_LITTLE_ENDIAN ); + return offset + 4; +} + +static int dissect_kademlia_search_condition(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree ) +{ + proto_item * ti; + guint16 value = tvb_get_guint8(tvb, offset); + ti = proto_tree_add_item( tree, hf_kademlia_search_condition, tvb, offset, 1, ENC_BIG_ENDIAN ); + proto_item_append_text(ti, " [%s]", val_to_str_const( value, kademlia_search_conds, "Unknown") ); + + return offset + 1; +} + +/* Dissects the eDonkey meta tag */ +static int dissect_edonkey_metatag(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <Meta Tag> ::= <Tag Type (guint8)> <Tag Name> <Tag> */ + /* <Tag Name> ::= <Tag Name Size (guint16)> <Special Tag> || <String> */ + /* <Tag Name> ::= <Special Tag> iff Tag Type had the top bit set */ + proto_item *ti; + proto_tree *metatag_tree; + guint8 real_tag_type, tag_type, special_tagtype, trans_tagtype; + guint16 tag_name_size, string_length, array_length; + guint32 tag_length, blob_length; + int tag_offset; + + real_tag_type = tag_type = tvb_get_guint8(tvb, offset); + if (tag_type & EDONKEY_MTAG_SHORTNAME) { + real_tag_type &= ~EDONKEY_MTAG_SHORTNAME; + tag_name_size = 1; + special_tagtype = tvb_get_guint8(tvb, offset+1); + tag_length = 2; + } else { + tag_name_size = tvb_get_letohs(tvb, offset+1); + special_tagtype = tvb_get_guint8(tvb, offset+3); + tag_length = 3 + tag_name_size; + } + + tag_offset = offset + tag_length; + + switch (real_tag_type) + { + case EDONKEY_MTAG_HASH: + /* <Tag> ::= HASH */ + tag_length += 16; + ti = proto_tree_add_item(tree, hf_edonkey_metatag, tvb, offset, tag_length, ENC_NA); + metatag_tree = proto_item_add_subtree(ti, ett_edonkey_metatag); + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_type, tvb, offset, 1, tag_type); + if (tag_type==real_tag_type) + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_namesize, tvb, offset+1, 2, tag_name_size); + edonkey_tree_add_metatag_name(metatag_tree, tvb, tag_offset-tag_name_size, tag_name_size, special_tagtype); + proto_tree_add_item(metatag_tree, hf_edonkey_hash, tvb, tag_offset, 16, ENC_NA); + break; + + case EDONKEY_MTAG_STRING: + /* <Tag> ::= <Length (guint16)> <String> */ + string_length = tvb_get_letohs(tvb, tag_offset); + tag_length += 2+string_length; + ti = proto_tree_add_item(tree, hf_edonkey_metatag, tvb, offset, tag_length, ENC_NA); + metatag_tree = proto_item_add_subtree(ti, ett_edonkey_metatag); + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_type, tvb, offset, 1, tag_type); + if (tag_type==real_tag_type) + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_namesize, tvb, offset+1, 2, tag_name_size); + edonkey_tree_add_metatag_name(metatag_tree, tvb, tag_offset-tag_name_size, tag_name_size, special_tagtype); + proto_tree_add_uint(metatag_tree, hf_edonkey_string_length, tvb, tag_offset, 2, string_length); + proto_tree_add_item(metatag_tree, hf_edonkey_string, tvb, tag_offset+2, string_length, ENC_ASCII); + break; + + case EDONKEY_MTAG_DWORD: + /* <Tag> ::= guint32 */ + tag_length += 4; + ti = proto_tree_add_item(tree, hf_edonkey_metatag, tvb, offset, tag_length, ENC_NA); + metatag_tree = proto_item_add_subtree(ti, ett_edonkey_metatag); + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_type, tvb, offset, 1, tag_type); + if (tag_type==real_tag_type) + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_namesize, tvb, offset+1, 2, tag_name_size); + edonkey_tree_add_metatag_name(metatag_tree, tvb, tag_offset-tag_name_size, tag_name_size, special_tagtype); + trans_tagtype = edonkey_metatag_name_get_type(tvb, offset+3, tag_name_size, special_tagtype); + if (trans_tagtype == EDONKEY_STAG_IP) { + proto_tree_add_item(metatag_tree, hf_edonkey_ip, tvb, tag_offset, 4, ENC_BIG_ENDIAN); + } + else if (trans_tagtype == EMULE_STAG_SERVER_VERSION) { + proto_tree_add_item(metatag_tree, hf_edonkey_meta_tag_value_revision, tvb, tag_offset, 4, ENC_LITTLE_ENDIAN); + } + else { + proto_tree_add_item(metatag_tree, hf_edonkey_meta_tag_value_uint, tvb, tag_offset, 4, ENC_LITTLE_ENDIAN); + } + break; + + case EDONKEY_MTAG_FLOAT: + /* <Tag> ::= 4 byte float */ + tag_length += 4; + ti = proto_tree_add_item(tree, hf_edonkey_metatag, tvb, offset, tag_length, ENC_NA); + metatag_tree = proto_item_add_subtree(ti, ett_edonkey_metatag); + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_type, tvb, offset, 1, tag_type); + if (tag_type==real_tag_type) + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_namesize, tvb, offset+1, 2, tag_name_size); + edonkey_tree_add_metatag_name(metatag_tree, tvb, tag_offset-tag_name_size, tag_name_size, special_tagtype); + break; + + case EDONKEY_MTAG_WORD: + /* <Tag> ::= guint16 */ + tag_length += 2; + ti = proto_tree_add_item(tree, hf_edonkey_metatag, tvb, offset, tag_length, ENC_NA); + metatag_tree = proto_item_add_subtree(ti, ett_edonkey_metatag); + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_type, tvb, offset, 1, tag_type); + if (tag_type==real_tag_type) + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_namesize, tvb, offset+1, 2, tag_name_size); + edonkey_tree_add_metatag_name(metatag_tree, tvb, tag_offset-tag_name_size, tag_name_size, special_tagtype); + + proto_tree_add_item(metatag_tree, hf_edonkey_meta_tag_value_uint, tvb, tag_offset, 2, ENC_LITTLE_ENDIAN); + break; + + case EDONKEY_MTAG_BYTE: + /* <Tag> ::= guint8 */ + tag_length += 1; + ti = proto_tree_add_item(tree, hf_edonkey_metatag, tvb, offset, tag_length, ENC_NA); + metatag_tree = proto_item_add_subtree(ti, ett_edonkey_metatag); + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_type, tvb, offset, 1, tag_type); + if (tag_type==real_tag_type) + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_namesize, tvb, offset+1, 2, tag_name_size); + edonkey_tree_add_metatag_name(metatag_tree, tvb, tag_offset-tag_name_size, tag_name_size, special_tagtype); + proto_tree_add_item(metatag_tree, hf_edonkey_meta_tag_value_uint, tvb, tag_offset, 1, ENC_NA); + break; + + case EDONKEY_MTAG_BOOL: + /* <Tag> ::= <Bool (guint8)> */ + tag_length += 1; + ti = proto_tree_add_item(tree, hf_edonkey_metatag, tvb, offset, tag_length, ENC_NA); + metatag_tree = proto_item_add_subtree(ti, ett_edonkey_metatag); + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_type, tvb, offset, 1, tag_type); + if (tag_type==real_tag_type) + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_namesize, tvb, offset+1, 2, tag_name_size); + edonkey_tree_add_metatag_name(metatag_tree, tvb, tag_offset-tag_name_size, tag_name_size, special_tagtype); + proto_tree_add_item(metatag_tree, hf_edonkey_meta_tag_value_uint, tvb, tag_offset, 1, ENC_NA); + break; + + case EDONKEY_MTAG_BOOL_ARRAY: + /* <Tag> ::= <Length (guint16)> <BoolArray> */ + array_length = tvb_get_letohs(tvb, tag_offset); + /* + * This is allegedly what the protocol uses, rather than the + * correct value of (array_length+7)/8 + * Therefore an extra unused byte is transmitted if the array + * is a multiple of 8 longs. + */ + tag_length += 2+(array_length/8)+1; + ti = proto_tree_add_item(tree, hf_edonkey_metatag, tvb, offset, tag_length, ENC_NA); + metatag_tree = proto_item_add_subtree(ti, ett_edonkey_metatag); + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_type, tvb, offset, 1, tag_type); + if (tag_type==real_tag_type) + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_namesize, tvb, offset+1, 2, tag_name_size); + edonkey_tree_add_metatag_name(metatag_tree, tvb, tag_offset-tag_name_size, tag_name_size, special_tagtype); + proto_tree_add_item(metatag_tree, hf_edonkey_boolean_array_length, tvb, tag_offset, 2, ENC_LITTLE_ENDIAN); + break; + + case EDONKEY_MTAG_BLOB: + /* <Tag> ::= <Length (guint32)> <BLOB> */ + blob_length = tvb_get_letohl(tvb, tag_offset); + tag_length += 4+blob_length; + ti = proto_tree_add_item(tree, hf_edonkey_metatag, tvb, offset, tag_length, ENC_NA); + metatag_tree = proto_item_add_subtree(ti, ett_edonkey_metatag); + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_type, tvb, offset, 1, tag_type); + if (tag_type==real_tag_type) + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_namesize, tvb, offset+1, 2, tag_name_size); + edonkey_tree_add_metatag_name(metatag_tree, tvb, tag_offset-tag_name_size, tag_name_size, special_tagtype); + proto_tree_add_item(metatag_tree, hf_edonkey_blob_length, tvb, tag_offset, 2, ENC_LITTLE_ENDIAN); + break; + + case EDONKEY_MTAG_BSOB: + /* This is possibly a Binary Small OBject, like a BLOB but with an 8 or 16-bit length field */ + /* That's a complete guess though, so don't handle it yet. */ + case EDONKEY_MTAG_UNKNOWN: + default: + if (real_tag_type>=EDONKEY_MTAG_STR1 && real_tag_type<=EDONKEY_MTAG_STR16) { + /* <Tag> ::= <String> */ + string_length = real_tag_type-EDONKEY_MTAG_STR1+1; + tag_length += string_length; + ti = proto_tree_add_item(tree, hf_edonkey_metatag, tvb, offset, tag_length, ENC_NA); + metatag_tree = proto_item_add_subtree(ti, ett_edonkey_metatag); + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_type, tvb, offset, 1, tag_type); + if (real_tag_type==tag_type) + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_namesize, tvb, offset+1, 2, tag_name_size); + edonkey_tree_add_metatag_name(metatag_tree, tvb, tag_offset-tag_name_size, tag_name_size, special_tagtype); + proto_tree_add_item(metatag_tree, hf_edonkey_string, tvb, tag_offset, string_length, ENC_ASCII); + + } else { + /* Unknown tag type - actual tag length is also unknown */ + ti = proto_tree_add_item(tree, hf_edonkey_metatag, tvb, offset, tag_length, ENC_NA); + metatag_tree = proto_item_add_subtree(ti, ett_edonkey_metatag); + proto_tree_add_uint_format(metatag_tree, hf_edonkey_metatag_type, tvb, offset, 1, tag_type, "Unknown Meta Tag Type (0x%02x)", tag_type); + if (real_tag_type==tag_type) + proto_tree_add_uint(metatag_tree, hf_edonkey_metatag_namesize, tvb, offset+1, 2, tag_name_size); + edonkey_tree_add_metatag_name(metatag_tree, tvb, tag_offset-tag_name_size, tag_name_size, special_tagtype); + } + break; + + } + + return offset + tag_length; +} + +/* Dissects the eDonkey address */ +static int dissect_edonkey_address(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <Address> ::= <IP> <Port> */ + /* guint32 ip = tvb_get_letohl(tvb, offset); + proto_tree_add_ipv4(tree, hf_edonkey_ip, tvb, offset, 4, ip); */ + proto_tree_add_item(tree, hf_edonkey_ip, tvb, offset, 4, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_edonkey_port, tvb, offset+4, 2, ENC_LITTLE_ENDIAN); + return offset+6; +} + + +static int dissect_kademlia_udp_port(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_kademlia_udp_port, tvb, offset, 2, ENC_LITTLE_ENDIAN); + return offset +2; +} + +static int dissect_kademlia_tcp_port(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_kademlia_tcp_port, tvb, offset, 2, ENC_LITTLE_ENDIAN); + return offset +2; +} + + +static int dissect_kademlia_ip_address(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_kademlia_ip, tvb, offset, 4, ENC_LITTLE_ENDIAN); + return offset + 4; +} + + +static int dissect_kademlia_address(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Address> ::= <IP> <Port> <Tcp Port>*/ + offset = dissect_kademlia_ip_address( tvb, pinfo, offset, tree ); + + offset = dissect_kademlia_udp_port( tvb, pinfo, offset, tree ); + + offset = dissect_kademlia_tcp_port( tvb, pinfo, offset, tree ); + + return offset; +} + +static int dissect_kademlia_tagname(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree, const gchar** outputTagName, const gchar** outputExtendedTagName) +{ + /* <String> ::= <String length (guint16)> DATA */ + const gchar * tagname; + const gchar * tag_full_name = NULL; + guint8 tagname_value; + proto_item *ti, *hidden_item; + + guint16 string_length = tvb_get_letohs(tvb, offset); + + proto_tree_add_uint(tree, hf_kademlia_tag_name_length, tvb, offset, 2, string_length); + + hidden_item = proto_tree_add_uint(tree, hf_edonkey_string_length, tvb, offset, 2, string_length); + proto_item_set_hidden(hidden_item); + + tagname = tvb_get_string_enc(wmem_packet_scope(), tvb, offset + 2, string_length, ENC_ASCII|ENC_NA); + + tag_full_name = "UnknownTagName"; + + if ( tagname && string_length == 1 ) { + tagname_value = *(const guint8*)tagname; + /* lookup tagname */ + tag_full_name = val_to_str_const( tagname_value, kademlia_tags, tag_full_name ); + } + + ti = proto_tree_add_item(tree, hf_kademlia_tag_name, tvb, offset + 2, string_length, ENC_BIG_ENDIAN); + proto_item_append_text(ti, " [%s]", tag_full_name); + + if (outputTagName) + *outputTagName = tagname; + + if (outputExtendedTagName) + *outputExtendedTagName = tag_full_name; + + return offset+2+string_length; +} + +static int dissect_kademlia_string(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <String> ::= <String length (guint16)> DATA */ + guint16 string_length = tvb_get_letohs(tvb, offset); + + proto_tree_add_uint(tree, hf_edonkey_string_length, tvb, offset, 2, string_length); + + /* TODO: ASCII or UTF-8? */ + proto_tree_add_item(tree, hf_edonkey_kademlia_string, tvb, offset+2, string_length, ENC_ASCII); + + return offset+2+string_length; +} + +/* Dissects the eDonkey address list */ +static int dissect_edonkey_address_list(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Address List> ::= <List Size (guint8)> <Address>* */ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 1, "Address", dissect_edonkey_address); +} + +/* Dissects the eDonkey hash */ +static int dissect_edonkey_hash(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <hash> ::= HASH (16 word MD4 digest) */ + proto_tree_add_item(tree, hf_edonkey_hash, tvb, offset, 16, ENC_NA); + return offset+16; +} + +/* Dissects the eDonkey file hash */ +static int dissect_edonkey_file_hash(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <File hash> ::= HASH (16 word MD4 digest) */ + proto_tree_add_item(tree, hf_edonkey_file_hash, tvb, offset, 16, ENC_NA); + return offset+16; +} + +/* Dissects the eMule public key */ +static int dissect_edonkey_public_key(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + guint8 length = tvb_get_guint8(tvb, offset); + proto_tree_add_item(tree, hf_emule_public_key_length, tvb, offset, 1, ENC_NA); + offset++; + proto_tree_add_item(tree, hf_emule_public_key, tvb, offset, length, ENC_NA); + return offset + length; +} + +/* Dissects the eMule signature */ +static int dissect_edonkey_signature(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + guint8 length = tvb_get_guint8(tvb, offset); + proto_tree_add_item(tree, hf_emule_signature_length, tvb, offset, 1, ENC_NA); + offset++; + proto_tree_add_item(tree, hf_emule_signature, tvb, offset, length, ENC_NA); + return offset + length; +} + +static const char *kademlia_hash(tvbuff_t *tvb, int offset) { + guint32 hash[4]; + int i; + + for (i = 0; i < 4; i++) + hash[i] = tvb_get_letohl(tvb, offset + i*4); + + return wmem_strdup_printf(wmem_packet_scope(), + "%08X%08X%08X%08X", hash[0], hash[1], hash[2], hash[3]); +} + +static int dissect_kademlia_hash_hidden(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) { + proto_item *hidden_item; + const char *hash; + + hash = kademlia_hash(tvb, offset); + + /* <File hash> ::= HASH (16 word MD4 digest) */ + hidden_item = proto_tree_add_string(tree, hf_kademlia_hash, tvb, offset, 16, hash); + proto_item_set_hidden(hidden_item); + + return offset+16; +} + +/* Dissects the Kademlia hash*/ +static int dissect_kademlia_hash(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree, int *value_ptr) { + const char *hash; + + hash = kademlia_hash(tvb, offset); + + /* <File hash> ::= HASH (16 word MD4 digest) */ + proto_tree_add_string(tree, *value_ptr, tvb, offset, 16, hash); + + return dissect_kademlia_hash_hidden(tvb, pinfo, offset, tree); +} + +static int dissect_kademlia_tag_hash_hidden(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) { + proto_item *hidden_item; + const char *hash; + + hash = kademlia_hash(tvb, offset); + + /* <File hash> ::= HASH (16 word MD4 digest) */ + hidden_item = proto_tree_add_string(tree, hf_kademlia_tag_hash, tvb, offset, 16, hash); + proto_item_set_hidden(hidden_item); + + return offset+16; +} + +static int dissect_kademlia_tag_hash(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) { + const char *hash; + + hash = kademlia_hash(tvb, offset); + + /* <File hash> ::= HASH (16 word MD4 digest) */ + proto_tree_add_string(tree, hf_kademlia_hash, tvb, offset, 16, hash); + return dissect_kademlia_tag_hash_hidden( tvb, pinfo, offset, tree ); +} + +static int dissect_kademlia_tag_bsob(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree, const gchar** string_value ) +{ + guint16 bsob_length; + + bsob_length = tvb_get_guint8(tvb, offset); + *string_value = tvb_bytes_to_str(wmem_packet_scope(), tvb, offset + 1, bsob_length ); + + proto_tree_add_item(tree, hf_kademlia_tag_bsob, tvb, offset + 1, bsob_length, ENC_NA); + return offset + 1 + bsob_length; +} + + +static int dissect_kademlia_tag_string(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree, const guint8** string_value) +{ + proto_item *hidden_item; + guint16 string_length = tvb_get_letohs(tvb, offset); + + hidden_item = proto_tree_add_uint(tree, hf_edonkey_string_length, tvb, offset, 2, string_length); + proto_item_set_hidden(hidden_item); + hidden_item = proto_tree_add_item_ret_string(tree, hf_edonkey_string, tvb, offset + 2, string_length, ENC_ASCII|ENC_NA, wmem_packet_scope(), string_value); + proto_item_set_hidden(hidden_item); + + proto_tree_add_item(tree, hf_kademlia_tag_string, tvb, offset + 2, string_length, ENC_ASCII); + return offset + 2 + string_length; +} + +/* Dissects the eDonkey hash list */ +static int dissect_edonkey_hash_list(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Hash List> ::= <File Hash> <List Size (guint16)> <Hash>* */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + return dissect_edonkey_list(tvb, pinfo, offset, tree, 2, "Hash", dissect_edonkey_hash); +} + +/* Dissects the eDonkey meta tag list */ +static int dissect_edonkey_metatag_list(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Meta Tag List> ::= <List Size (guint32)> <Meta tag>* */ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 4, "Meta Tag", dissect_edonkey_metatag); +} + +/* Dissects the eDonkey String */ +static int dissect_edonkey_string(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <String> ::= <String length (guint16)> DATA */ + guint16 string_length = tvb_get_letohs(tvb, offset); + proto_tree_add_uint(tree, hf_edonkey_string_length, tvb, offset, 2, string_length); + proto_tree_add_item(tree, hf_edonkey_string, tvb, offset+2, string_length, ENC_ASCII); + return offset+2+string_length; +} + +/* Dissects the eDonkey Directory */ +static int dissect_edonkey_directory(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <Directory> ::= <String> */ + guint16 string_length = tvb_get_letohs(tvb, offset); + proto_tree_add_uint(tree, hf_edonkey_string_length, tvb, offset, 2, string_length); + proto_tree_add_item(tree, hf_edonkey_directory, tvb, offset+2, string_length, ENC_ASCII); + return offset+2+string_length; +} + +/* Dissects the eDonkey Filename */ +static int dissect_edonkey_file_name(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Filename> ::= <String> */ + return dissect_edonkey_string(tvb, pinfo, offset, tree); +} + +/* Dissects the eDonkey File Status */ +static int dissect_edonkey_file_status(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + guint16 partcount, arrlen; + + /* <File Status> ::= <Part Count> <Part Status> */ + partcount = tvb_get_letohs(tvb, offset); + arrlen = (partcount+7)/8; + + proto_tree_add_uint(tree, hf_edonkey_part_count, tvb, offset, 2, partcount); + if (partcount>0) { + proto_tree_add_item(tree, hf_edonkey_file_status, tvb, offset+2, arrlen, ENC_NA); + } + return offset+2+arrlen; +} + + +/* Dissects the eDonkey directory list */ +static int dissect_edonkey_directory_list(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Directory List> ::= <List Size (guint32)> <Directory>* */ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 4, "Directory", dissect_edonkey_directory); +} + +/* Dissects the eDonkey server hash */ +static int dissect_edonkey_server_hash(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <Server hash> ::= HASH (16 word MD4 digest) */ + proto_tree_add_item(tree, hf_edonkey_server_hash, tvb, offset, 16, ENC_NA); + return offset+16; +} + +/* Dissects the eDonkey client hash */ +static int dissect_edonkey_client_hash(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <Client hash> ::= HASH (16 word MD4 digest) */ + proto_tree_add_item(tree, hf_edonkey_client_hash, tvb, offset, 16, ENC_NA); + return offset+16; +} + +/* Dissects the eMule sourceOBFU */ +static int dissect_emule_sourceOBFU(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + + proto_item *ti; + proto_tree *sourceOBFU_tree; + guint8 settings = tvb_get_guint8(tvb, offset+6); + /* Add subtree for client info */ + ti = proto_tree_add_item(tree, hf_emule_sourceOBFU, tvb, offset, 7 + ((settings & 0x80) ? 16 : 0), ENC_NA); + sourceOBFU_tree = proto_item_add_subtree(ti, ett_emule_sourceOBFU); + + proto_tree_add_item(sourceOBFU_tree, hf_edonkey_ip, tvb, offset, 4, ENC_BIG_ENDIAN); + proto_tree_add_item(sourceOBFU_tree, hf_edonkey_port, tvb, offset+4, 2, ENC_LITTLE_ENDIAN); + proto_tree_add_item(sourceOBFU_tree, hf_edonkey_obfuscation_settings, tvb, offset+6, 1, ENC_NA); + offset += 7; + if (settings & 0x80) + offset = dissect_edonkey_client_hash(tvb, pinfo, offset, sourceOBFU_tree); + return offset; +} + + +/* Dissects the eMule sourceOBFU list */ +static int dissect_emule_sourceOBFU_list(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 1, "Sources Obfuscation", dissect_emule_sourceOBFU); +} + + +/* Dissects the eDonkey client ID */ +static int dissect_edonkey_client_id(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree, gboolean fileinfo) +{ + proto_item *ti; + /* <Client ID> ::= guint32 */ + /* guint32 ip = tvb_get_letohl(tvb, offset); + proto_tree_add_ipv4(tree, hf_edonkey_client_id, tvb, offset, 4, ip); */ + ti = proto_tree_add_item(tree, hf_edonkey_client_id, tvb, offset, 4, ENC_BIG_ENDIAN); + if (fileinfo) { + guint32 ip = tvb_get_letohl(tvb, offset); + guint16 port = tvb_get_letohs(tvb, offset+4); + if (ip==0xfcfcfcfc && port==0xfcfc) { + proto_item_append_text(ti, " (myself, incomplete file)"); + } else if (ip==0xfbfbfbfb && port==0xfbfb) { + proto_item_append_text(ti, " (myself, complete file)"); + } + } + return offset+4; +} + +/* Dissects the eDonkey port */ +static int dissect_edonkey_port(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <Port> ::= guint16 */ + proto_tree_add_item(tree, hf_edonkey_port, tvb, offset, 2, ENC_LITTLE_ENDIAN); + return offset+2; +} + +/* Dissects the eDonkey start offset */ +static int dissect_edonkey_start_offset(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <Start Offset> ::= guint32 */ + proto_tree_add_item(tree, hf_edonkey_start_offset, tvb, offset, 4, ENC_LITTLE_ENDIAN); + return offset+4; +} + +static int dissect_edonkey_start_offset_64(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <Start Offset> ::= guint64 */ + proto_tree_add_item(tree, hf_edonkey_start_offset_64, tvb, offset, 8, ENC_LITTLE_ENDIAN); + return offset+8; +} + +/* Dissects the eDonkey end offset */ +static int dissect_edonkey_end_offset(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <End Offset> ::= guint32 */ + proto_tree_add_item(tree, hf_edonkey_end_offset, tvb, offset, 4, ENC_LITTLE_ENDIAN); + return offset+4; +} + +static int dissect_edonkey_end_offset_64(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <End Offset> ::= guint64 */ + proto_tree_add_item(tree, hf_edonkey_end_offset_64, tvb, offset, 8, ENC_LITTLE_ENDIAN); + return offset+8; +} + +/* Dissects the eDonkey client info */ +static int dissect_edonkey_client_info(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Client info> ::= <Client hash> <Client ID> <Port> <Meta tag list> */ + proto_item *ti; + proto_tree *clientinfo_tree; + /* Add subtree for client info */ + ti = proto_tree_add_item(tree, hf_edonkey_clientinfo, tvb, offset, 0, ENC_NA); + clientinfo_tree = proto_item_add_subtree(ti, ett_edonkey_clientinfo); + offset = dissect_edonkey_client_hash(tvb, pinfo, offset, clientinfo_tree); + offset = dissect_edonkey_client_id(tvb, pinfo, offset, clientinfo_tree, FALSE); + offset = dissect_edonkey_port(tvb, pinfo, offset, clientinfo_tree); + offset = dissect_edonkey_metatag_list(tvb, pinfo, offset, clientinfo_tree); + return offset; +} + +/* Dissects the eDonkey client info list */ +static int dissect_edonkey_client_info_list(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Client Info List> ::= <List Size (guint32)> <Client Info>* */ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 4, "Client Info", dissect_edonkey_client_info); +} + +/* Dissects the eDonkey server info */ +static int dissect_edonkey_server_info(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Server info> ::= <Server hash> <Server Address> <Meta tag list> */ + proto_item *ti; + proto_tree *serverinfo_tree; + /* Add subtree for server info */ + ti = proto_tree_add_item(tree, hf_edonkey_serverinfo, tvb, offset, 0, ENC_NA); + serverinfo_tree = proto_item_add_subtree(ti, ett_edonkey_serverinfo); + offset = dissect_edonkey_server_hash(tvb, pinfo, offset, serverinfo_tree); + offset = dissect_edonkey_address(tvb, pinfo, offset, serverinfo_tree); + offset = dissect_edonkey_metatag_list(tvb, pinfo, offset, serverinfo_tree); + return offset; +} + +/* Dissects the eDonkey file info */ +static int dissect_edonkey_file_info(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <File info> ::= <File hash> <Client ID> <Port> <Meta tag list> */ + proto_item *ti; + proto_tree *fileinfo_tree; + int startoff; + /* Add subtree for file info */ + ti = proto_tree_add_item(tree, hf_edonkey_fileinfo, tvb, offset, 0, ENC_NA); + startoff = offset; + fileinfo_tree = proto_item_add_subtree(ti, ett_edonkey_fileinfo); + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, fileinfo_tree); + offset = dissect_edonkey_client_id(tvb, pinfo, offset, fileinfo_tree, TRUE); + offset = dissect_edonkey_port(tvb, pinfo, offset, fileinfo_tree); + offset = dissect_edonkey_metatag_list(tvb, pinfo, offset, fileinfo_tree); + proto_item_set_len(ti, offset-startoff); + return offset; +} + +/* Dissects the eDonkey file info list */ +static int dissect_edonkey_file_info_list(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <File Info List> ::= <List Size (guint32)> <File Info>* */ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 4, "File Info", dissect_edonkey_file_info); +} + + +/* Dissects the eMule address list */ +static int dissect_emule_address_list(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Address List> ::= <List Size (guint16)> <Address>* */ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 2, "Address", dissect_edonkey_address); +} + +static int dissect_emule_aich_root_hash(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <AICH Root Hash> ::= HASH (20 byte SHA1 digest) */ + proto_tree_add_item(tree, hf_emule_aich_root_hash, tvb, offset, 20, ENC_NA); + return offset + 20; +} + +static int dissect_emule_aich_hash_list_entry(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + guint16 hashid; + proto_item *ti; + proto_tree *aichhash_tree; + /* <AICH Hash List Entry> ::= <AICH Hash ID> <AICH Hash> */ + ti = proto_tree_add_item(tree, hf_emule_aich_hash_entry, tvb, offset, 22, ENC_NA); + aichhash_tree = proto_item_add_subtree(ti, ett_emule_aichhash); + + hashid = tvb_get_letohs(tvb, offset); + proto_tree_add_uint(aichhash_tree, hf_emule_aich_hash_id, tvb, offset, 2, hashid); + proto_tree_add_item(aichhash_tree, hf_emule_aich_hash, tvb, offset+2, 20, ENC_NA); + return offset + 22; +} + +static int dissect_emule_aich_hash_list(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <AICH Hash List> ::= <List Size (guint16)> < <AICH Hash ID> <AICH Hash> >* */ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 2, "AICH Hash", dissect_emule_aich_hash_list_entry); +} + +static int dissect_emule_multipacket(tvbuff_t *tvb, packet_info *pinfo, + int offset, int eoffset, proto_tree *tree, int isext) +{ + guint8 opcode, nextop; + guint16 namelen, partcount, arrlen, oplen; + guint32 sourcecount; + proto_item *ti; + proto_tree *mp_tree; + + /* <MultiPacket> ::= <File Hash> <Opcodes>* */ + /* <MultiPacketExt> ::= <File Hash> <FileLength> <Opcodes>* */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + + if (isext) { + proto_tree_add_item(tree, hf_edonkey_emule_file_length, tvb, offset, 8, ENC_LITTLE_ENDIAN); + offset += 8; + } + + while (offset<eoffset) { + opcode = tvb_get_guint8(tvb, offset); + + switch (opcode) { + case EDONKEY_MSG_FILE_STATUS_REQUEST: + ti = proto_tree_add_item(tree, hf_emule_multipacket_entry, tvb, offset, 1, ENC_NA); + mp_tree = proto_item_add_subtree(ti, ett_emule_multipacket); + + proto_tree_add_uint_format(mp_tree, hf_emule_multipacket_opcode, tvb, offset, 1, + opcode, "File Status Request (0x%02x)", opcode); + offset += 1; + break; + case EDONKEY_MSG_FILE_REQUEST: + partcount = 443; /* Invalid */ + sourcecount = 65536; /* Out of range */ + arrlen = 0; + oplen = 1; + + if (offset+2<eoffset) { + nextop = tvb_get_guint8(tvb, offset+1); + if (nextop!=EDONKEY_MSG_FILE_STATUS_REQUEST && + nextop!=EMULE_MSG_SOURCES_REQUEST && + nextop!=EMULE_MSG_AICHFILEHASH_REQUEST) { + + partcount = tvb_get_letohs(tvb, offset+1); + if (partcount<=442) { + arrlen = (partcount+7)/8; + oplen += 2+arrlen; + + if (offset+2+arrlen+2<eoffset) { + nextop = tvb_get_guint8(tvb, offset+2+arrlen+1); + if (nextop!=EDONKEY_MSG_FILE_STATUS_REQUEST && + nextop!=EMULE_MSG_SOURCES_REQUEST && + nextop!=EMULE_MSG_AICHFILEHASH_REQUEST) { + + sourcecount = tvb_get_letohs(tvb, offset+2+arrlen+1); + oplen += 2; + } + } + } + } + } + + ti = proto_tree_add_item(tree, hf_emule_multipacket_entry, tvb, offset, oplen, ENC_NA); + mp_tree = proto_item_add_subtree(ti, ett_emule_multipacket); + + proto_tree_add_uint_format(mp_tree, hf_emule_multipacket_opcode, tvb, offset, 1, + opcode, "File Name Request (0x%02x)", opcode); + if (partcount<=442) { + dissect_edonkey_file_status(tvb, pinfo, offset+1, mp_tree); + if (sourcecount<65536) { + proto_tree_add_uint(mp_tree, hf_emule_source_count, tvb, offset+3+arrlen, 2, sourcecount); + } + } + offset += oplen; + break; + case EMULE_MSG_SOURCES_REQUEST: + ti = proto_tree_add_item(tree, hf_emule_multipacket_entry, tvb, offset, 1, ENC_NA); + mp_tree = proto_item_add_subtree(ti, ett_emule_multipacket); + + proto_tree_add_uint_format(mp_tree, hf_emule_multipacket_opcode, tvb, offset, 1, + opcode, "Sources Request (0x%02x)", opcode); + offset += 1; + break; + case EMULE_MSG_AICHFILEHASH_REQUEST: + ti = proto_tree_add_item(tree, hf_emule_multipacket_entry, tvb, offset, 1, ENC_NA); + mp_tree = proto_item_add_subtree(ti, ett_emule_multipacket); + + proto_tree_add_uint_format(mp_tree, hf_emule_multipacket_opcode, tvb, offset, 1, + opcode, "AICH Root Hash Request (0x%02x)", opcode); + offset += 1; + break; + + case EDONKEY_MSG_FILE_STATUS: + partcount = tvb_get_letohs(tvb, offset+1); + arrlen = (partcount+7)/8; + + ti = proto_tree_add_item(tree, hf_emule_multipacket_entry, tvb, offset, 3+arrlen, ENC_NA); + mp_tree = proto_item_add_subtree(ti, ett_emule_multipacket); + + proto_tree_add_uint_format(mp_tree, hf_emule_multipacket_opcode, tvb, offset, 1, + opcode, "File Status (0x%02x)", opcode); + offset = dissect_edonkey_file_status(tvb, pinfo, offset+1, mp_tree); + break; + case EDONKEY_MSG_FILE_REQUEST_ANSWER: + namelen = tvb_get_letohs(tvb, offset+1); + + ti = proto_tree_add_item(tree, hf_emule_multipacket_entry, tvb, offset, 3+namelen, ENC_NA); + mp_tree = proto_item_add_subtree(ti, ett_emule_multipacket); + + proto_tree_add_uint_format(mp_tree, hf_emule_multipacket_opcode, tvb, offset, 1, + opcode, "File Name (0x%02x)", opcode); + offset = dissect_edonkey_file_name(tvb, pinfo, offset+1, mp_tree); + break; + case EMULE_MSG_AICHFILEHASH_ANSWER: + ti = proto_tree_add_item(tree, hf_emule_multipacket_entry, tvb, offset, 21, ENC_NA); + mp_tree = proto_item_add_subtree(ti, ett_emule_multipacket); + + proto_tree_add_uint_format(mp_tree, hf_emule_multipacket_opcode, tvb, offset, 1, + opcode, "AICH Root Hash (0x%02x)", opcode); + proto_tree_add_item(mp_tree, hf_emule_aich_root_hash, tvb, offset+1, 20, ENC_NA); + offset += 21; + break; + + default: + /* Unknown opcode means we can't continue parsing the stream */ + proto_tree_add_uint_format(tree, hf_emule_multipacket_opcode, tvb, offset, 1, + opcode, "Unknown MultiPacket opcode (0x%02x)", opcode); + return offset+1; + } + } + + return offset; +} + +/* Dissects the Overnet peer type */ +static int dissect_overnet_peertype(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <Peer type> ::= guint8 */ + proto_tree_add_item(tree, hf_edonkey_overnet_peer_type, tvb, offset, 1, ENC_NA); + return offset+1; +} + +/* Dissects the Overnet peer */ +static int dissect_overnet_peer(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Peer> ::= <Hash> <Address> <Peer type> */ + proto_item *ti; + proto_tree *peer_tree; + ti = proto_tree_add_item(tree, hf_overnet_peer, tvb, offset, 16 + 6 + 1, ENC_NA); + peer_tree = proto_item_add_subtree(ti, ett_overnet_peer); + offset = dissect_edonkey_hash(tvb, pinfo, offset, peer_tree); + offset = dissect_edonkey_address(tvb, pinfo, offset, peer_tree); + offset = dissect_overnet_peertype(tvb, pinfo, offset, peer_tree); + return offset; +} + +static int dissect_kademlia_peertype(tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + /* <Peer type> ::= 1bytes */ + proto_tree_add_item( tree, hf_kademlia_peertype, tvb, offset, 1, ENC_BIG_ENDIAN ); + return offset + 1; +} + +/* Dissects the Kademlia peer */ +static int dissect_kademlia_peer(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Peer> ::= <Hash> <Address> <Peer type> */ + proto_item *ti; + proto_tree *peer_tree; + + ti = proto_tree_add_item(tree, hf_kademlia_peer, tvb, offset, 16 + 4 + 4 + 1, ENC_NA); + + peer_tree = proto_item_add_subtree(ti, ett_overnet_peer); + + /* 16 */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, peer_tree, &hf_kademlia_peer_id); + + /* 8 ( 4 ip + 2 tcp port + 2 udp port ) */ + offset = dissect_kademlia_address(tvb, pinfo, offset, peer_tree); + + /* 1 */ + /* offset = dissect_kademlia_peertype(tvb, pinfo, offset, peer_tree); */ + proto_tree_add_item(peer_tree, hf_kademlia_version, tvb, offset, 1, ENC_BIG_ENDIAN); + return offset + 1; +} + +/* Dissects the Kademlia2 peer */ +static int dissect_kademlia2_peer(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Peer> ::= <Hash> <Address> <Peer type> */ + proto_item *ti; + proto_tree *peer_tree; + + ti = proto_tree_add_item(tree, hf_kademlia_peer, tvb, offset, 16 + 4 + 4 + 1, ENC_NA); + + peer_tree = proto_item_add_subtree(ti, ett_overnet_peer); + + /* 16 */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, peer_tree, &hf_kademlia_peer_id); + + /* 8 ( 4 ip + 2 tcp port + 2 udp port ) */ + offset = dissect_kademlia_address(tvb, pinfo, offset, peer_tree); + + /* 1 */ + offset = dissect_kademlia_peertype(tvb, pinfo, offset, peer_tree); + return offset; +} + + +/* Dissects the eDonkey search query */ +static int dissect_edonkey_search_query(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* <Search Query> ::= <Search Type> <Search> */ + proto_item *ti; + proto_tree *search_tree; + guint8 search_type, special_tagtype; + guint16 tag_name_size, string_length; + guint32 search_length; + int string_offset, tag_name_offset; + + search_type = tvb_get_guint8(tvb, offset); + search_length = 1; + ti = proto_tree_add_uint(tree, hf_edonkey_search_type, tvb, offset, 1, search_type); + + switch (search_type) + { + case EDONKEY_SEARCH_BOOL: + /* <Search> ::= <Operator> <Search Query> <Search Query> */ + search_length += 1; + + /* Add subtree for search entry */ + proto_item_set_len(ti, search_length); + search_tree = proto_item_add_subtree(ti, ett_edonkey_search); + + /* Add query info */ + proto_tree_add_item(search_tree, hf_edonkey_search_ops, tvb, offset+1, 1, ENC_LITTLE_ENDIAN); + + offset+=2; + offset = dissect_edonkey_search_query(tvb, pinfo, offset, search_tree); + offset = dissect_edonkey_search_query(tvb, pinfo, offset, search_tree); + break; + + case EDONKEY_SEARCH_NAME: + /* <Search> ::= <String> */ + string_offset = offset + search_length; + string_length = tvb_get_letohs(tvb, string_offset); + search_length += 2+string_length; + + /* Add subtree for search entry */ + proto_item_set_len(ti, search_length); + search_tree = proto_item_add_subtree(ti, ett_edonkey_search); + + /* Add query info */ + proto_tree_add_uint(search_tree, hf_edonkey_string_length, tvb, string_offset, 2, string_length); + proto_tree_add_item(search_tree, hf_edonkey_string, tvb, string_offset+2, string_length, ENC_ASCII); + offset += search_length; + break; + + case EDONKEY_SEARCH_META: + /* <Search> ::= <String> <Meta tag Name> */ + string_offset = offset + search_length; + string_length = tvb_get_letohs(tvb, offset+1); + search_length += 2+string_length; + + tag_name_offset = offset + search_length; + tag_name_size = tvb_get_letohs(tvb, tag_name_offset); + special_tagtype = tvb_get_guint8(tvb, tag_name_offset+2); + search_length += 2 + tag_name_size; + + /* Add subtree for search entry */ + proto_item_set_len(ti, search_length); + search_tree = proto_item_add_subtree(ti, ett_edonkey_search); + + /* Add query info */ + proto_tree_add_uint(search_tree, hf_edonkey_string_length, tvb, string_offset, 2, string_length); + proto_tree_add_item(search_tree, hf_edonkey_string, tvb, string_offset+2, string_length, ENC_ASCII); + proto_tree_add_uint(search_tree, hf_edonkey_metatag_namesize, tvb, tag_name_offset, 2, tag_name_size); + edonkey_tree_add_metatag_name(search_tree, tvb, tag_name_offset+2, tag_name_size, special_tagtype); + offset += search_length; + break; + + case EDONKEY_SEARCH_LIMIT: + /* <Search> ::= <Limit (guint32)> <Minmax> <Meta tag Name> */ + search_length += 5; /* 4 bytes for the limit, one for the minmax */ + + tag_name_offset = offset + search_length; + tag_name_size = tvb_get_letohs(tvb, tag_name_offset); + special_tagtype = tvb_get_guint8(tvb, tag_name_offset+2); + search_length += 2 + tag_name_size; + + /* Add subtree for search entry */ + proto_item_set_len(ti, search_length); + search_tree = proto_item_add_subtree(ti, ett_edonkey_search); + + /* Add query info */ + proto_tree_add_item(search_tree, hf_edonkey_search_limit, tvb, offset+1, 4, ENC_LITTLE_ENDIAN); + proto_tree_add_item(search_tree, hf_edonkey_search_limit_type, tvb, offset+5, 1, ENC_LITTLE_ENDIAN); + proto_tree_add_uint(search_tree, hf_edonkey_metatag_namesize, tvb, tag_name_offset, 2, tag_name_size); + edonkey_tree_add_metatag_name(search_tree, tvb, tag_name_offset+2, tag_name_size, special_tagtype); + offset += search_length; + break; + + default: + /* Unknown search type - actual search length is also unknown */ + proto_item_set_len(ti, search_length); + offset += search_length; + break; + } + + return offset; +} + +static void dissect_edonkey_tcp_message(guint8 msg_type, + tvbuff_t *tvb, packet_info *pinfo, + int offset, int length, proto_tree *tree) +{ + int msg_end, bytes_remaining; + guint8 helloClient; + + bytes_remaining = tvb_reported_length_remaining(tvb, offset); + if ((length < 0) || (length > bytes_remaining)) length = bytes_remaining; + if (length <= 0) return; + + msg_end = offset + length; + + switch (msg_type) { + case EDONKEY_MSG_HELLO: + /* Client to Server: <Client Info> */ + /* Client to Client: 0x10 <Client Info> <Server address> */ + /* If Hello is sent to server 0x10 before UserHash is skipped, + but UserHash might starts with 0x10. To decrease posibility + of mistake, we check also 6th and 15h byte of UserHash - + they have constant value. The best way would be to process + whole packet to check it. */ + helloClient = (tvb_get_guint8(tvb, offset) == 0x10 && tvb_get_guint8(tvb, offset + 6) == 0x0E && tvb_get_guint8(tvb, offset + 15) == 0x6F); + if (helloClient) { + proto_tree_add_uint(tree, hf_edonkey_user_hash_length, tvb, offset, 1, 16); + offset += 1; + } + offset = dissect_edonkey_client_info(tvb, pinfo, offset, tree); + if (helloClient) /* User's server ip is sent only to clients. */ + offset = dissect_edonkey_address(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_HELLO_ANSWER: /* Hello Answer: <Client Info> <Server address> */ + offset = dissect_edonkey_client_info(tvb, pinfo, offset, tree); + offset = dissect_edonkey_address(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_SERVER_CB_REQ: /* Server Callback Request: <Client address> */ + offset = dissect_edonkey_address(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_SERVER_INFO_DATA: /* Server Info Data: <Server Info> */ + offset = dissect_edonkey_server_info(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_SERVER_LIST: /* Server List: <Address List> */ + offset = dissect_edonkey_address_list(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_OFFER_FILES: /* Offer Files: <File info List> */ + case EDONKEY_MSG_VIEW_FILES_ANSWER: /* View Files Answer: <File info list> */ + offset = dissect_edonkey_file_info_list(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_SEARCH_FILE_RESULTS: /* Search File Results: <File Info list> <More> */ + offset = dissect_edonkey_file_info_list(tvb, pinfo, offset, tree); + proto_tree_add_item(tree, hf_edonkey_more_search_file_results, tvb, offset, 1, ENC_NA); + break; + + case EDONKEY_MSG_SEARCH_FILES: /* Search File: <Search query> */ + case EDONKEY_MSG_SEARCH_USER: /* Search User: <Search query> */ + offset = dissect_edonkey_search_query(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_GET_SOURCES: /* Get Sources: <File Hash> <Size> <Size 64> */ + case EDONKEY_MSG_GET_SOURCES_OBFU: /* Get Sources: <File Hash> <Size> <Size 64> */ + { + guint32 fileSize; + proto_item* ti; + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + fileSize = tvb_get_letohl(tvb, offset); + ti = proto_tree_add_uint(tree, hf_edonkey_file_size, tvb, offset, 4, fileSize); + offset += 4; + /* if fileSize = 0 then 64bit file size comes next */ + if (fileSize == 0) { + proto_item_append_text(ti, " (64bit file size used)"); + proto_tree_add_item(tree, hf_edonkey_large_file_size, tvb, offset, 8, ENC_LITTLE_ENDIAN); + } + } + break; + + case EDONKEY_MSG_NO_SUCH_FILE: /* No Such File: <File Hash> */ + case EDONKEY_MSG_END_OF_DOWNLOAD: /* End of Download: <File Hash> */ + case EDONKEY_MSG_FILE_STATUS_REQUEST: /* File Status Request: <File Hash> */ + case EDONKEY_MSG_HASHSET_REQUEST: /* Hashset Request: <File Hash> */ + case EDONKEY_MSG_SLOT_REQUEST: /* Slot Request: <File Hash> */ + case EDONKEY_MSG_FILE_REQUEST: /* File Request: <File Hash> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_FOUND_SOURCES_OBFU: /* Found Sources: <File Hash> <SourceOBFU List> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + offset = dissect_emule_sourceOBFU_list(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_FOUND_SOURCES: /* Found Sources: <File Hash> <Address List> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_address_list(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_CLIENT_CB_REQ: /* Client Callback Request: <Client ID> */ + case EDONKEY_MSG_CALLBACK_FAIL: /* Callback Fail: <Client ID> */ + case EDONKEY_MSG_ID_CHANGE: /* ID Change: <Client ID> */ + offset = dissect_edonkey_client_id(tvb, pinfo, offset, tree, FALSE); + break; + + case EDONKEY_MSG_NEW_CLIENT_ID: /* New Client ID: <Client ID> <Client ID> */ + offset = dissect_edonkey_client_id(tvb, pinfo, offset, tree, FALSE); + offset = dissect_edonkey_client_id(tvb, pinfo, offset, tree, FALSE); + break; + + case EDONKEY_MSG_SERVER_MESSAGE: /* Server Message: <String> */ + case EDONKEY_MSG_CLIENT_MESSAGE: /* Client Message: <String> */ + offset = dissect_edonkey_string(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_SERVER_STATUS: /* Server Status: <Nusers> <Nfiles> */ + proto_tree_add_item(tree, hf_edonkey_number_of_users, tvb, offset, 4, ENC_LITTLE_ENDIAN); + proto_tree_add_item(tree, hf_edonkey_number_of_files, tvb, offset+4, 4, ENC_LITTLE_ENDIAN); + break; + + case EDONKEY_MSG_FILE_STATUS: /* File Status: <File hash> <Part Count> <Part Status>? */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_file_status(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_FILE_REQUEST_ANSWER: /* File Request Answer: <File hash> <File name> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_file_name(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_REQUEST_PARTS: /* Request Parts: <File hash> <Start offset>(3) <End offset>(3) */ + { + int pairs, count; + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + pairs = (msg_end - offset) / 8; + + for (count=0; count < pairs; count++) + { + offset = dissect_edonkey_start_offset(tvb, pinfo, offset, tree); + } + for (count=0; count < pairs; count++) + { + offset = dissect_edonkey_end_offset(tvb, pinfo, offset, tree); + } + } + break; + + case EDONKEY_MSG_SENDING_PART: /* Sending Part: <File hash> <Start offset> <End offset> DATA */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_start_offset(tvb, pinfo, offset, tree); + offset = dissect_edonkey_end_offset(tvb, pinfo, offset, tree); + if (msg_end > offset) { + bytes_remaining = msg_end - offset; + proto_tree_add_item(tree, hf_edonkey_message_data, tvb, offset, bytes_remaining, ENC_NA); + } + break; + + + case EDONKEY_MSG_SEARCH_USER_RESULTS: /* Search User Results: <Client info list> */ + offset = dissect_edonkey_client_info_list(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_GET_SHARED_FILES: /* Get Shared Files: <Directory> */ + offset = dissect_edonkey_directory(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_SHARED_DIRS: /* Shared Dirs: <Directory List> */ + offset = dissect_edonkey_directory_list(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_SHARED_FILES: /* Shared Files: <Directory> <File info list> */ + offset = dissect_edonkey_directory(tvb, pinfo, offset, tree); + offset = dissect_edonkey_file_info_list(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_HASHSET_ANSWER: /* Hashset Answer: <Hash List> */ + offset = dissect_edonkey_hash_list(tvb, pinfo, offset, tree); + break; + + default: + proto_tree_add_item(tree, hf_edonkey_message_data, tvb, offset, length, ENC_NA); + break; + } + + if (offset < msg_end) { + int extra_bytes = msg_end - offset; + /* trailing garbage or broken packet */ + proto_tree_add_uint_format(tree, hf_edonkey_unparsed_data_length, tvb, offset, extra_bytes, extra_bytes, + "Trailing/Undecoded data: %d bytes", extra_bytes ); + } + return; +} + +static void dissect_emule_tcp_message(guint8 msg_type, + tvbuff_t *tvb, packet_info *pinfo, + int offset, int length, proto_tree *tree) +{ + int msg_end, bytes_remaining; + guint16 partnum; + + bytes_remaining = tvb_reported_length_remaining(tvb, offset); + if ((length < 0) || (length > bytes_remaining)) length = bytes_remaining; + if (length <= 0) return; + + msg_end = offset + length; + + switch (msg_type) { + case EMULE_MSG_HELLO: /* eMule Info: <eMule Version> <Meta tag list> */ + case EMULE_MSG_HELLO_ANSWER: /* eMule Info Answer: <eMule Version> <Meta tag list> */ + proto_tree_add_item(tree, hf_edonkey_emule_version, tvb, offset, 2, ENC_LITTLE_ENDIAN); + dissect_edonkey_metatag_list(tvb, pinfo, offset+2, tree); + break; + + case EMULE_MSG_QUEUE_RANKING: /* eMule Queue Ranking: <eMule Rank (guint16)> */ + proto_tree_add_item(tree, hf_edonkey_emule_queue_ranking, tvb, offset, 2, ENC_LITTLE_ENDIAN); + break; + + case EMULE_MSG_SOURCES_REQUEST: /* Sources Request: <File Hash> */ + dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + break; + + case EMULE_MSG_SOURCES_ANSWER: /* Sources Answer: <File Hash> <Address List> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + dissect_emule_address_list(tvb, pinfo, offset, tree); + break; + + case EMULE_MSG_SEC_IDENT_STATE: + proto_tree_add_item(tree, hf_edonkey_emule_ident_state, tvb, offset, 1, ENC_NA); + offset++; + proto_tree_add_item(tree, hf_edonkey_emule_rndchallenge, tvb, offset, 4, ENC_LITTLE_ENDIAN); + break; + + case EMULE_MSG_PUBLIC_KEY: /* Public Key: <1byte : len> <len bytes: pubkey> */ + /* offset =*/ dissect_edonkey_public_key(tvb, pinfo, offset, tree); + /* offset = dissect_emule_publickey(tvb, pinfo, offset, tree); */ + break; + + case EMULE_MSG_SIGNATURE: + offset = dissect_edonkey_signature(tvb, pinfo, offset, tree); + if (msg_end != offset) { + proto_tree_add_item(tree, hf_edonkey_emule_sig_ip_used, tvb, offset, 1, ENC_NA); + } + break; + + + /* case EMULE_MSG_SIGNATURE: Public Key: <1byte : len> <len bytes: pubkey> */ + /* offset = dissect_emule_publickey(tvb, pinfo, offset, tree); */ + /* break; */ + + /* case EMULE_MSG_SECIDENTSTATE: Public Key: <1byte : len> <len bytes: pubkey> */ + /* offset = dissect_emule_secstate(tvb, pinfo, offset, tree); */ + /* offset = dissect_emule_challenge(tvb, pinfo, offset, tree); */ + /* break; */ + + case EMULE_MSG_DATA_COMPRESSED: /* Data Compressed: <File Hash> <Start Offset> <Length (guint32)> <DATA> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_start_offset(tvb, pinfo, offset, tree); + proto_tree_add_item(tree, hf_edonkey_packed_length, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + if (msg_end > offset) { + bytes_remaining = msg_end - offset; + proto_tree_add_item(tree, hf_edonkey_compressed_message_data, tvb, offset, bytes_remaining, ENC_NA); + } + break; + + case EMULE_MSG_DATA_COMPRESSED_64: /* Data Compressed: <File Hash> <Start Offset (guint64)> <Length (guint32)> <DATA> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_start_offset_64(tvb, pinfo, offset, tree); + proto_tree_add_item(tree, hf_edonkey_packed_length, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + if (msg_end > offset) { + bytes_remaining = msg_end - offset; + proto_tree_add_item(tree, hf_edonkey_compressed_message_data, tvb, offset, bytes_remaining, ENC_NA); + } + break; + + case EMULE_MSG_REQUEST_PARTS_64: /* Request Parts: <File hash> <Start offset>(3) <End offset>(3) */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_start_offset_64(tvb, pinfo, offset, tree); + offset = dissect_edonkey_start_offset_64(tvb, pinfo, offset, tree); + offset = dissect_edonkey_start_offset_64(tvb, pinfo, offset, tree); + offset = dissect_edonkey_end_offset_64(tvb, pinfo, offset, tree); + offset = dissect_edonkey_end_offset_64(tvb, pinfo, offset, tree); + dissect_edonkey_end_offset_64(tvb, pinfo, offset, tree); + break; + + case EMULE_MSG_SENDING_PART_64: /* Sending Part: <File hash> <Start offset> <End offset> DATA */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_start_offset_64(tvb, pinfo, offset, tree); + offset = dissect_edonkey_end_offset_64(tvb, pinfo, offset, tree); + if (msg_end > offset) { + bytes_remaining = msg_end - offset; + proto_tree_add_item(tree, hf_edonkey_message_data, tvb, offset, bytes_remaining, ENC_NA); + } + break; + + case EMULE_MSG_CALLBACK: /* Callback: < hash ><hash> <uint16> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + /*offset = */dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + /* offset = dissect_edonkey_generic_uint16(tvb, pinfo, offset, tree, "uint16" ); */ + break; + + case EMULE_MSG_AICH_REQUEST: /* AICH Request: <File Hash> <PartNum> <AICH Hash> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + partnum = tvb_get_letohs(tvb, offset); + proto_tree_add_uint(tree, hf_emule_aich_partnum, tvb, offset, 2, partnum); + offset += 2; + dissect_emule_aich_root_hash(tvb, pinfo, offset, tree); + break; + + case EMULE_MSG_AICH_ANSWER: /* AICH Answer: <File Hash> <PartNum> <AICH Hash> <AICH Hash List> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + partnum = tvb_get_letohs(tvb, offset); + proto_tree_add_uint(tree, hf_emule_aich_partnum, tvb, offset, 2, partnum); + offset += 2; + offset = dissect_emule_aich_root_hash(tvb, pinfo, offset, tree); + dissect_emule_aich_hash_list(tvb, pinfo, offset, tree); + break; + + case EMULE_MSG_MULTIPACKET: /* MultiPacket: <Hash> <Opcodes> */ + case EMULE_MSG_MULTIPACKET_ANSWER: + case EMULE_MSG_MULTIPACKET_EXT: /* MultiPacketExt: <Hash> <FileLength> <Opcodes> */ + dissect_emule_multipacket(tvb, pinfo, offset, offset+length, tree, msg_type==EMULE_MSG_MULTIPACKET_EXT); + break; + + default: + dissect_edonkey_tcp_message(msg_type, tvb, pinfo, offset, length, tree); + break; + } + return; +} + +static int dissect_edonkey_udp_message(guint8 msg_type, + tvbuff_t *tvb, packet_info *pinfo, + int offset, int length, proto_tree *tree) +{ + int msg_end, bytes_remaining; + guint16 ischal; + + bytes_remaining = tvb_reported_length_remaining(tvb, offset); + if ((length < 0) || (length > bytes_remaining)) length = bytes_remaining; + if (length <= 0) return offset; + + msg_end = offset + length; + + switch (msg_type) { + /* EDonkey UDP Messages */ + case EDONKEY_MSG_UDP_CALLBACK_REQUEST: /* Callback Request: <Address> <Client ID> */ + offset = dissect_edonkey_address(tvb, pinfo, offset, tree); + offset = dissect_edonkey_client_id(tvb, pinfo, offset, tree, FALSE); + break; + + case EDONKEY_MSG_UDP_CALLBACK_FAIL: /* Callback Fail: <Client ID> */ + offset = dissect_edonkey_client_id(tvb, pinfo, offset, tree, FALSE); + break; + + case EDONKEY_MSG_UDP_GET_SERVER_INFO: /* Get Server Info: <Challenge> */ + if (length>=2) { + ischal = tvb_get_letohs(tvb, offset); + if (ischal==0xf0ff) { + proto_tree_add_item(tree, hf_edonkey_challenge, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + } + } + break; + + case EDONKEY_MSG_UDP_SERVER_INFO: /* Server Info: <String> <String>*/ + ischal = tvb_get_letohs(tvb, offset); + if (ischal==0xf0ff) { + proto_tree_add_item(tree, hf_edonkey_challenge, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset = dissect_edonkey_metatag_list(tvb, pinfo, offset+4, tree); + } else { + offset = dissect_edonkey_string(tvb, pinfo, offset, tree); + offset = dissect_edonkey_string(tvb, pinfo, offset, tree); + } + break; + + case EDONKEY_MSG_UDP_SERVER_LIST: /* Server List: <Address List> */ + offset = dissect_edonkey_address_list(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_UDP_SEARCH_FILE_RESULTS: /* Search File Result: <File Info> */ + offset = dissect_edonkey_file_info(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_UDP_SEARCH_FILE: /* Search File: <Search query> */ + offset = dissect_edonkey_search_query(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_UDP_GET_SOURCES: /* Get Sources: <File Hash> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_UDP_FOUND_SOURCES: /* Found Sources: <File Hash> <Address List> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_address_list(tvb, pinfo, offset, tree); + break; + + case EDONKEY_MSG_UDP_SERVER_STATUS_REQUEST: /* Server Status Request: <guint32> */ + proto_tree_add_item(tree, hf_edonkey_challenge, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + break; + + case EDONKEY_MSG_UDP_SERVER_STATUS: /* Server Status: <guint32> <Nusers> <Nfiles> <Nusersmax> */ + proto_tree_add_item(tree, hf_edonkey_challenge, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + proto_tree_add_item(tree, hf_edonkey_number_of_users, tvb, offset, 4, ENC_LITTLE_ENDIAN); + proto_tree_add_item(tree, hf_edonkey_number_of_files, tvb, offset+4, 4, ENC_LITTLE_ENDIAN); + offset += 8; + if (offset < msg_end) { + proto_tree_add_item(tree, hf_edonkey_max_number_of_users, tvb, offset, 4, ENC_LITTLE_ENDIAN); + offset += 4; + } + break; + + /* Overnet UDP Messages */ + case OVERNET_MSG_UDP_CONNECT: /* Connect: <Peer (sender) > */ + case OVERNET_MSG_UDP_PUBLICIZE: /* Publicize: <Peer (sender) > */ + offset = dissect_overnet_peer(tvb, pinfo, offset, tree); + break; + + case OVERNET_MSG_UDP_CONNECT_REPLY: /* Connect Reply: <guint16 Peer List> */ + offset = dissect_edonkey_list(tvb, pinfo, offset, tree, 2, "Overnet Peer", dissect_overnet_peer); + break; + + case OVERNET_MSG_UDP_SEARCH: /* Search: <search type (guint8)> <Hash> */ + proto_tree_add_item(tree, hf_edonkey_search_type, tvb, offset, 1, ENC_NA); + offset = dissect_edonkey_hash(tvb, pinfo, offset+1, tree); + break; + + case OVERNET_MSG_UDP_SEARCH_INFO: + /* Search Info: <Hash> <search type (guint8)> <min (guint16)> <max (guint16)>*/ + offset = dissect_edonkey_hash(tvb, pinfo, offset, tree); + proto_tree_add_item(tree, hf_edonkey_search_type, tvb, offset, 1, ENC_NA); + proto_tree_add_item(tree, hf_edonkey_search_range_min, tvb, offset+1, 2, ENC_LITTLE_ENDIAN); + proto_tree_add_item(tree, hf_edonkey_search_range_max, tvb, offset+3, 2, ENC_LITTLE_ENDIAN); + break; + + case OVERNET_MSG_UDP_SEARCH_NEXT: /* Search Next: <Hash> <guint8 Peer List> */ + offset = dissect_edonkey_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_list(tvb, pinfo, offset, tree, 1, "Overnet Peer", dissect_overnet_peer); + break; + + case OVERNET_MSG_UDP_SEARCH_RESULT: /* Search Result: <Hash> <Hash> <Meta tag List> */ + case OVERNET_MSG_UDP_PUBLISH: /* Publish: <Hash> <Hash> <Meta tag List> */ + offset = dissect_edonkey_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_metatag_list(tvb, pinfo, offset, tree); + break; + + case OVERNET_MSG_UDP_SEARCH_END: /* Search End: <Hash> */ + offset = dissect_edonkey_hash(tvb, pinfo, offset, tree); + break; + + case OVERNET_MSG_UDP_PUBLISH_ACK: /* Publish ACK: <File Hash> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + break; + + case OVERNET_MSG_UDP_IP_QUERY: /* IP Query: <TCP Port> */ + proto_tree_add_item(tree, hf_edonkey_port, tvb, offset, 2, ENC_LITTLE_ENDIAN); + break; + + case OVERNET_MSG_UDP_IP_QUERY_ANSWER: /* IP Query Answer: <IP> */ + offset = dissect_edonkey_client_id(tvb, pinfo, offset, tree, FALSE); + break; + + case OVERNET_MSG_UDP_IDENTIFY_REPLY: /* Identify Reply: <Contact (sender)> */ + /* <Contact> ::= <Hash> <Address> */ + offset = dissect_edonkey_hash(tvb, pinfo, offset, tree); + offset = dissect_edonkey_address(tvb, pinfo, offset, tree); + break; + + case OVERNET_MSG_UDP_IDENTIFY_ACK: /* Identify Reply: <TCP Port (sender)> */ + proto_tree_add_item(tree, hf_edonkey_port, tvb, offset, 2, ENC_LITTLE_ENDIAN); + break; + + case OVERNET_MSG_UDP_FIREWALL_CONNECTION: /* Firewall Connnection Ack: <Hash> <TCP Port> */ + offset = dissect_edonkey_client_hash(tvb, pinfo, offset, tree); + proto_tree_add_item(tree, hf_edonkey_port, tvb, offset, 2, ENC_LITTLE_ENDIAN); + break; + + case OVERNET_MSG_UDP_FIREWALL_CONNECTION_ACK: /* Firewall Connnection Ack: <Hash> */ + case OVERNET_MSG_UDP_FIREWALL_CONNECTION_NACK: /* Firewall Connnection NAck: <Hash> */ + offset = dissect_edonkey_client_hash(tvb, pinfo, offset, tree); + break; + + default: + proto_tree_add_item(tree, hf_edonkey_message_data, tvb, offset, length, ENC_NA); + offset+=length; + break; + } + + return offset; +} + +static int dissect_emule_udp_message(guint8 msg_type, + tvbuff_t *tvb, packet_info *pinfo, + int offset, int length, proto_tree *tree) +{ + int msg_end, bytes_remaining; + + bytes_remaining = tvb_reported_length_remaining(tvb, offset); + if ((length < 0) || (length > bytes_remaining)) length = bytes_remaining; + if (length <= 0) return offset; + + msg_end = offset + length; + + switch (msg_type) { + case EMULE_MSG_UDP_REASKFILEPING: /* Reask File Ping: <File Hash> */ + offset = dissect_edonkey_file_hash(tvb, pinfo, offset, tree); + if ( offset + 2 < msg_end ) { + /* Udp version > 3 */ + offset = dissect_edonkey_file_status( tvb, pinfo, offset, tree ); + } + + if ( msg_end == offset + 2 ) { + /* Udp version > 2 */ + proto_tree_add_item( tree, hf_emule_source_count, tvb, offset, 2, ENC_LITTLE_ENDIAN ); + offset += 2; + } + break; + + case EMULE_MSG_UDP_REASKACK: /* Reask ACK: <eMule Rank> */ + if ( offset + 2 < msg_end ) { + /* Udp version > 3 */ + offset = dissect_edonkey_file_status( tvb, pinfo, offset, tree ); + } + + proto_tree_add_item(tree, hf_edonkey_emule_queue_ranking, tvb, offset, 2, ENC_LITTLE_ENDIAN); + offset += 2; + break; + + default: + offset = dissect_edonkey_udp_message(msg_type, tvb, pinfo, offset, length,tree); + break; + } + return offset; +} + +static int dissect_kademlia_peer_list_2byte(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 2, "Peer", dissect_kademlia_peer ); +} + + +static int dissect_kademlia_peer_list_1byte(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 1, "Peer", dissect_kademlia_peer ); +} + +static int dissect_kademlia2_peer_list_2byte(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 2, "Peer", dissect_kademlia2_peer ); +} + +static int dissect_kademlia2_peer_list_1byte(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 1, "Peer", dissect_kademlia2_peer ); +} + +static int dissect_kademlia_tag(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + guint8 type; + guint8 tag_type; + const gchar *str_type; + proto_item *ti; + proto_item* tag_node; + proto_tree *subtree; + int item_start_offset; + proto_item * ti_tagtype; + + item_start_offset = offset; + /* tag_node length is adjusted at the end of this function */ + subtree = proto_tree_add_subtree( tree, tvb, offset, 1, ett_kademlia_tag, &tag_node, "Tag " ); + + type = tvb_get_guint8( tvb, offset ); + str_type = val_to_str_const(type, kademlia_tag_types, "Unknown" ); + + ti_tagtype = proto_tree_add_item( subtree, hf_kademlia_tag_type, tvb, offset, 1, ENC_LITTLE_ENDIAN ); + offset += 1; + + { + const gchar *tagname_string; + const gchar *tagname_extended_string; + + /* Read tagname */ + tag_type = tvb_get_guint8( tvb, offset+2 ); + offset = dissect_kademlia_tagname( tvb, pinfo, offset, subtree, &tagname_string, &tagname_extended_string ); + if ( strlen( tagname_string ) == 1 ) { + const guint8 tagname_guint = *(const guint8*)tagname_string; + + proto_item_append_text( tag_node, " 0x%02X [%s] = ", tagname_guint, tagname_extended_string ); + } + else + proto_item_append_text( tag_node, " \"%s\" [%s] = ", tagname_string, tagname_extended_string ); + } + + /* Switch on type */ + switch( type ) + { + case KADEMLIA_TAGTYPE_HASH: + proto_item_append_text( tag_node, "%s", tvb_bytes_to_str(wmem_packet_scope(), tvb, offset, 16 )); + offset = dissect_kademlia_tag_hash( tvb, pinfo, offset, subtree ); + break; + case KADEMLIA_TAGTYPE_STRING: + { + const guint8* value; + offset = dissect_kademlia_tag_string( tvb, pinfo, offset, subtree, &value ); + + proto_item_append_text( tag_node, "\"%s\"", value ); + } + break; + case KADEMLIA_TAGTYPE_UINT8: + { + guint8 value; + ti = proto_tree_add_item( subtree, hf_kademlia_tag_uint8, tvb, offset, 1, ENC_LITTLE_ENDIAN); + + value = tvb_get_guint8( tvb, offset ); + proto_item_append_text( tag_node, "%u (0x%02X)", value, value ); + switch (tag_type) { + case KADEMLIA_TAG_SOURCETYPE: + { + proto_item_append_text(ti," (%s)", val_to_str_const(value, kademlia_tag_sourcetype, "Unknown")); + } + break; + case KADEMLIA_TAG_ENCRYPTION: + proto_item_append_text(ti, " (%s)", val_to_str_const(value, kademlia_tag_encryption, "Unknown")); + break; + } + offset += 1; + } + break; + case KADEMLIA_TAGTYPE_UINT16: + { + guint16 value; + proto_tree_add_item( subtree, hf_kademlia_tag_uint16, tvb, offset, 2, ENC_LITTLE_ENDIAN); + + value = tvb_get_letohs( tvb, offset ); + proto_item_append_text( tag_node, "%u (0x%04X)", value, value ); + + offset += 2; + } + break; + case KADEMLIA_TAGTYPE_UINT64: + { + guint64 value; + proto_tree_add_item( subtree, hf_kademlia_tag_uint64, tvb, offset, 8, ENC_LITTLE_ENDIAN); + + value = tvb_get_letoh64( tvb, offset ); + proto_item_append_text( tag_node, "%" PRIu64 " (0x%08" PRIX64 ")", value, value ); + + offset += 8; + } + break; + case KADEMLIA_TAGTYPE_UINT32: + { + guint32 value; + /* show ip as dotted decimal */ + switch( tag_type) { + case KADEMLIA_TAG_SERVERIP: + case KADEMLIA_TAG_SOURCEIP: + { + int ipa = 0, ipb = 0, ipc = 0, ipd = 0; + proto_tree_add_item( subtree, hf_kademlia_tag_ipv4, tvb, offset, 4, ENC_LITTLE_ENDIAN); + value = tvb_get_letohl( tvb, offset ); + ipa = (value / (256*256*256)) % 256; + ipb = (value / (256*256)) % 256; + ipc = (value / 256) % 256; + ipd = value % 256; + proto_item_append_text( tag_node, "%u.%u.%u.%u (0x%02X) ", ipa, ipb, ipc, ipd, value ); + } + break; + default: + proto_tree_add_item( subtree, hf_kademlia_tag_uint32, tvb, offset, 4, ENC_LITTLE_ENDIAN); + value = tvb_get_letohl( tvb, offset ); + proto_item_append_text( tag_node, "%u (0x%02X) ", value, value ); + } + + offset += 4; + } + break; + case KADEMLIA_TAGTYPE_FLOAT32: + { + float value; + proto_tree_add_item( subtree, hf_kademlia_tag_float, tvb, offset, 4, ENC_LITTLE_ENDIAN); + + value = tvb_get_letohieee_float( tvb, offset ); + proto_item_append_text( tag_node, "%f", value ); + + offset += 4; + } + break; + case KADEMLIA_TAGTYPE_BSOB: + { + const gchar* value; + offset = dissect_kademlia_tag_bsob( tvb, pinfo, offset, subtree, &value ); + proto_item_append_text( tag_node, "%s", value ); + } + break; + default: + expert_add_info_format(pinfo, ti_tagtype, &ei_kademlia_tag_type, "Tag value not decoded for type: 0x%02X", type ); + } + + proto_item_append_text( tag_node, " (Type: %s)", str_type ); + + proto_item_set_len( tag_node, offset - item_start_offset ); + + return offset; +} + +static int dissect_kademlia_taglist(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + return dissect_edonkey_list(tvb, pinfo, offset, tree, 1, "Tag", dissect_kademlia_tag ); +} + + +static int dissect_kademlia_publish_req_entry_file(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* Get the hash */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_file_id); + /* Read all the kad tags */ + return dissect_kademlia_taglist( tvb, pinfo, offset, tree ); +} + +static int dissect_kademlia_publish_req_entry_peer(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* Get the hash */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_peer_id); + /* Read all the kad tags */ + return dissect_kademlia_taglist( tvb, pinfo, offset, tree ); +} + + +static int dissect_kademlia_search_result(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + /* Get the hash */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_hash); + /* Read all the kad tags */ + return dissect_kademlia_taglist( tvb, pinfo, offset, tree ); +} + +static int dissect_kademlia_search_expression_tree(tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + int op, item_start_offset; + proto_item* ti; + + item_start_offset = offset; + op = tvb_get_guint8(tvb, offset); + ti = proto_tree_add_uint(tree, hf_kademlia_search_expression_type, tvb, offset, 1, op); + tree = proto_item_add_subtree( ti, ett_kademlia_search_expression ); + ++offset; + switch( op ) { + case 0: /* Bool op */ + proto_tree_add_item(tree, hf_kademlia_search_bool_op, tvb, offset, 1, ENC_NA ); + ++offset; + + /* Left */ + offset = dissect_kademlia_search_expression_tree( tvb, pinfo, offset, tree ); + /* Right */ + offset = dissect_kademlia_search_expression_tree( tvb, pinfo, offset, tree ); + break; + + case 1: /* String */ + offset = dissect_kademlia_string( tvb, pinfo, offset, tree ); + break; + case 2: /* Meta Tag */ + /* tag value */ + offset = dissect_edonkey_string( tvb, pinfo, offset, tree ); + /* tag name */ + offset = dissect_kademlia_tagname( tvb, pinfo, offset, tree, NULL, NULL ); + break; + case 3: /* Min/Max - 32bit! */ + offset = dissect_kademlia_search_condition_argument_uint32( tvb, pinfo, offset, tree ); + offset = dissect_kademlia_search_condition( tvb, pinfo, offset, tree ); + /* tag name */ + offset = dissect_kademlia_tagname( tvb, pinfo, offset, tree, NULL, NULL ); + break; + case 8: /* Min/Max - 64bit! */ + offset = dissect_kademlia_search_condition_argument_uint64( tvb, pinfo, offset, tree ); + offset = dissect_kademlia_search_condition( tvb, pinfo, offset, tree ); + /* tag name */ + offset = dissect_kademlia_tagname( tvb, pinfo, offset, tree, NULL, NULL ); + break; + default: + expert_add_info_format(pinfo, ti, &ei_kademlia_search_expression_type, "NOT DECODED op %x", op ); + } + proto_item_set_len( ti, offset - item_start_offset ); + return offset; +} + +static int dissect_kademlia2_prolog( tvbuff_t *tvb, packet_info *pinfo, + int offset, proto_tree *tree) +{ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_peer_id); + offset = dissect_kademlia_tcp_port(tvb, pinfo, offset, tree); + + proto_tree_add_item(tree, hf_kademlia_version, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + return offset; +} + +static int dissect_kademlia_uload( tvbuff_t *tvb, packet_info *pinfo _U_, + int offset, proto_tree *tree) +{ + proto_tree_add_item(tree, hf_edonkey_kademlia_uload, tvb, offset, 1, ENC_NA); + return offset +1; + +} +static int dissect_kademlia_udp_message(guint8 msg_type, + tvbuff_t *tvb, packet_info *pinfo, + int offset, int length, proto_tree *tree) +{ + int msg_end, bytes_remaining; + proto_item *hidden_item; + + bytes_remaining = tvb_reported_length_remaining(tvb, offset); + if ((length < 0) || (length > bytes_remaining)) length = bytes_remaining; + if (length <= 0) return offset; + + hidden_item = proto_tree_add_item(tree, hf_kademlia, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_item_set_hidden(hidden_item); + + msg_end = offset + length; + + switch (msg_type) { + case KADEMLIA_BOOTSTRAP_REQ:/* <PEER [25]> */ + case KADEMLIA_HELLO_REQ: + case KADEMLIA_HELLO_RES: + offset = dissect_kademlia_peer(tvb, pinfo, offset, tree); + break; + case KADEMLIA2_BOOTSTRAP_REQ: + offset = dissect_kademlia2_prolog( tvb, pinfo, offset, tree ); + break; + + case KADEMLIA2_HELLO_REQ: + case KADEMLIA2_HELLO_RES: + offset = dissect_kademlia2_prolog( tvb, pinfo, offset, tree ); + offset = dissect_kademlia_taglist( tvb, pinfo, offset, tree ); + break; + case KADEMLIA_BOOTSTRAP_RES: /* <CNT [2]> <PEER [25]>*(CNT) */ + offset = dissect_kademlia_peer_list_2byte( tvb, pinfo, offset, tree ); + break; + case KADEMLIA2_BOOTSTRAP_RES: + offset = dissect_kademlia2_prolog( tvb, pinfo, offset, tree ); + offset = dissect_kademlia2_peer_list_2byte( tvb, pinfo, offset, tree ); + break; + + case KADEMLIA2_SEARCH_SOURCE_REQ: + { + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_target_id); + /* start pos */ + proto_tree_add_item(tree, hf_edonkey_kademlia_start_position, tvb, offset, 2, ENC_LITTLE_ENDIAN); + offset +=2; + /* filesize */ + proto_tree_add_item(tree, hf_edonkey_kademlia_filesize, tvb, offset, 8, ENC_LITTLE_ENDIAN); + offset +=8; + } + break; + + case KADEMLIA_SEARCH_NOTES_REQ: /* <HASH (key) [16]> */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_hash); + break; + + case KADEMLIA2_SEARCH_KEY_REQ: + { + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_target_id); + /* start pos */ + proto_tree_add_item(tree, hf_edonkey_kademlia_start_position, tvb, offset, 2, ENC_LITTLE_ENDIAN); + offset += 2; + } + break; + case KADEMLIA2_SEARCH_NOTES_REQ: + + case KADEMLIA_PUBLISH_RES: + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_target_id); + if (offset<msg_end) { + offset = dissect_kademlia_uload( tvb, pinfo, offset, tree ); + } + break; + case KADEMLIA2_PUBLISH_RES: + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_target_id); + offset = dissect_kademlia_uload( tvb, pinfo, offset, tree ); + break; + + case KADEMLIA_REQ: /* <TYPE [1]> <HASH (target) [16]> <HASH (receiver) 16> */ + case KADEMLIA2_REQ: + { + int type; + guint8 target_id[16]; + guint8 recipients_id[16]; + proto_item *ti; + int i, j, k, l; + char binarray[129]; + + type = tvb_get_guint8(tvb, offset); + ti = proto_tree_add_uint_format_value(tree, hf_kademlia_request_type, tvb, offset, 1, type, "0x%02x", type ); + proto_item_append_text(ti, "%s", val_to_str_const(type, kademlia_parameter, " Unknown")); + offset +=1; + + /* get target id */ + for (i=0; i<4; i++) { + for (j=3; j>=0; j--) { + l = (j+4*i); + target_id[l] = tvb_get_guint8(tvb, offset + abs(8*i-(l-3))); + } + } + + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_target_id); + + /* get recipient's id */ + for (i=0; i<4; i++) { + for (j=3; j>=0; j--) { + l = (j+4*i); + recipients_id[l] = tvb_get_guint8(tvb, offset + abs(8*i-(l-3))); + } + } + + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_recipients_id); + + /* target_id XOR recipients_id */ + for (i=0; i<16; i++) { + k = 128; + l = target_id[i]^recipients_id[i]; + for(j=8*i; j<8*i+8; j++) { + if (l >= k) { + binarray[j] = '1'; + l = l-k; + } + else + binarray[j] = '0'; + k = k/2; + } + } + binarray[128] = '\0'; + proto_tree_add_string(tree, hf_kademlia_distance, tvb, offset, 0, binarray); + } + break; + + case KADEMLIA_RES: /* <HASH (target) [16]> <CNT> <PEER [25]>*(CNT) */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_target_id); + offset = dissect_kademlia_peer_list_1byte( tvb, pinfo, offset, tree ); + break; + case KADEMLIA2_RES: + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_target_id); + offset = dissect_kademlia2_peer_list_1byte( tvb, pinfo, offset, tree ); + break; + + case KADEMLIA_FIREWALLED_RES: /* <IP (sender) [4]> */ + offset = dissect_kademlia_ip_address( tvb, pinfo, offset, tree ); + break; + + case KADEMLIA_FIREWALLED_REQ: /* <TCPPORT (sender) [2]> */ + offset = dissect_kademlia_tcp_port( tvb, pinfo, offset, tree ); + break; + case KADEMLIA_CALLBACK_REQ: + case KADEMLIA_FINDBUDDY_REQ: + case KADEMLIA_FINDBUDDY_RES: + /* buddy id */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_hash); + /* userid */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_hash); + offset = dissect_kademlia_tcp_port( tvb, pinfo, offset, tree ); + break; + case KADEMLIA2_PUBLISH_SOURCE_REQ: + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_file_id); + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_peer_id); + offset = dissect_kademlia_taglist( tvb, pinfo, offset, tree ); + break; + case KADEMLIA_SEARCH_REQ: + { + int restrictive; + /* Target (16bytes) */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_target_id); + /* Restrictive (1 byte) 0/1 */ + restrictive = tvb_get_guint8(tvb, offset); + proto_tree_add_item(tree, hf_edonkey_kademlia_restrictive, tvb, offset, 1, ENC_NA); + offset +=1; + + if ( offset < msg_end && restrictive ) + offset = dissect_kademlia_search_expression_tree( tvb, pinfo, offset, tree ); + } + break; + case KADEMLIA_SEARCH_RES: + /* Target */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_target_id); + /* Results list */ + offset = dissect_edonkey_list(tvb, pinfo, offset, tree, 2, "Result", dissect_kademlia_search_result ); + break; + case KADEMLIA2_SEARCH_RES: + /* Sender */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_sender_id); + /* Target */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_target_id); + /* Results list */ + offset = dissect_edonkey_list(tvb, pinfo, offset, tree, 2, "Result", dissect_kademlia_search_result ); + break; + case KADEMLIA2_PUBLISH_KEY_REQ: + { + /* Keyword Hash */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_keyword_hash); + /* Results list */ + offset = dissect_edonkey_list(tvb, pinfo, offset, tree, 2, "StuffToPublish", dissect_kademlia_publish_req_entry_file ); + break; + } + case KADEMLIA_PUBLISH_REQ: /* 0x40 // <HASH (key) [16]> <CNT1 [2]> (<HASH (target) [16]> <CNT2 [2]> <META>*(CNT2))*(CNT1) */ + { + guint8 tagname_value=0, taglist_size, type; + int i=1, j=34; + + /* check if TAG_SOURCETYPE is set */ + taglist_size = tvb_get_guint8(tvb, offset + j); + j++; + + while(i <= taglist_size) { + type = tvb_get_guint8(tvb, offset + j); + j +=3; + tagname_value = tvb_get_guint8(tvb, offset + j); + if (tagname_value == 0xff) + i = taglist_size; + j++; + switch(type) { + case KADEMLIA_TAGTYPE_HASH: + j += 16; + break; + case KADEMLIA_TAGTYPE_STRING: + { + guint16 string_length = tvb_get_letohs(tvb, offset+j); + j += 2 + string_length; + break; + } + case KADEMLIA_TAGTYPE_UINT8: + j += 1; + break; + case KADEMLIA_TAGTYPE_UINT16: + j += 2; + break; + case KADEMLIA_TAGTYPE_UINT32: + case KADEMLIA_TAGTYPE_FLOAT32: + j += 4; + break; + case KADEMLIA_TAGTYPE_UINT64: + j += 8; + break; + case KADEMLIA_TAGTYPE_BSOB: + { + guint16 bsob_length = tvb_get_guint8(tvb, offset); + j += 1 + bsob_length; + break; + } + } + i++; + } + + switch (tagname_value) { + case KADEMLIA_TAG_SOURCETYPE: + { + /* Target */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_file_id); + /* Results list */ + offset = dissect_edonkey_list(tvb, pinfo, offset, tree, 2, "StuffToPublish", dissect_kademlia_publish_req_entry_peer); + } + break; + default: + { + /* Target */ + offset = dissect_kademlia_hash(tvb, pinfo, offset, tree, &hf_kademlia_keyword_hash); + /* Results list */ + offset = dissect_edonkey_list(tvb, pinfo, offset, tree, 2, "StuffToPublish", dissect_kademlia_publish_req_entry_file); + } + } + } + } + + return offset; +} + +static int dissect_kademlia_udp_compressed_message(guint8 msg_type, + tvbuff_t *tvb, packet_info *pinfo, + int offset, int length, proto_tree *tree) +{ + tvbuff_t *tvbraw = NULL; + + + tvbraw = tvb_child_uncompress(tvb, tvb, offset, length); + + if (tvbraw) { + guint32 raw_length; + + raw_length = tvb_captured_length( tvbraw ); + add_new_data_source(pinfo, tvbraw, "Decompressed Data"); + + dissect_kademlia_udp_message( msg_type, tvbraw, pinfo, 0, raw_length, tree ); + offset += length; + } else { + proto_tree_add_item(tree, hf_edonkey_broken_compressed_data, tvb, offset, length, ENC_NA); + } + return offset; +} + + +static guint get_edonkey_tcp_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, + int offset, void *data _U_) +{ + guint32 msg_len; + + /* + * Get the length of the eDonkey packet. + */ + msg_len = tvb_get_letohl(tvb, offset+1); + + /* + * That length doesn't include the header; add that in. + * XXX - what if it overflows? + */ + return msg_len + EDONKEY_TCP_HEADER_LENGTH; +} + +static int dissect_edonkey_tcp_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + proto_item *ti; + proto_tree *edonkey_tree, *edonkey_msg_tree = NULL, *emule_zlib_tree = NULL; + int offset; + guint8 protocol, msg_type; + guint32 msg_len; + const gchar *protocol_name, *message_name; + void (*dissector)(guint8, tvbuff_t*, packet_info*, int, int, proto_tree*); + tvbuff_t *tvbraw = NULL; + + col_set_str(pinfo->cinfo, COL_PROTOCOL, "eDonkey"); + + ti = proto_tree_add_item(tree, proto_edonkey, tvb, 0, -1, ENC_NA); + edonkey_tree = proto_item_add_subtree(ti, ett_edonkey); + + offset = 0; + protocol = tvb_get_guint8(tvb, offset); + msg_len = tvb_get_letohl(tvb, offset+1); + + protocol_name = val_to_str_const(protocol, edonkey_protocols, "Unknown"); + + col_append_sep_fstr(pinfo->cinfo, COL_INFO, ", ", "%s TCP", protocol_name); + + /* Add edonkey message tree */ + if (edonkey_tree) { + ti = proto_tree_add_item(edonkey_tree, hf_edonkey_message, tvb, + offset, EDONKEY_TCP_HEADER_LENGTH + msg_len, ENC_NA); + edonkey_msg_tree = proto_item_add_subtree(ti, ett_edonkey_message); + + proto_tree_add_uint(edonkey_msg_tree, hf_edonkey_protocol, tvb, offset, 1, protocol); + proto_tree_add_uint(edonkey_msg_tree, hf_edonkey_message_length, tvb, offset+1, 4, msg_len); + } + + + /* Skip past the EDONKEY Header */ + offset += EDONKEY_TCP_HEADER_LENGTH; + + msg_type = tvb_get_guint8(tvb, offset); + switch (protocol) { + case EDONKEY_PROTO_EDONKEY: + message_name = val_to_str_const(msg_type, edonkey_tcp_msgs, "Unknown"); + dissector = dissect_edonkey_tcp_message; + break; + + case EDONKEY_PROTO_EMULE_EXT: + message_name = val_to_str_const(msg_type, emule_tcp_msgs, + val_to_str_const(msg_type, edonkey_tcp_msgs, "Unknown")); + dissector = dissect_emule_tcp_message; + break; + + case EDONKEY_PROTO_EMULE_COMP: + /* + * These ought to be exactly the same as standard eDonkey (0xe5) messages, + * except that the payload (after the type byte) is a zlib compressed + * stream. + */ + message_name = val_to_str_const(msg_type, edonkey_tcp_msgs, "Unknown"); + tvbraw = tvb_child_uncompress(tvb, tvb, offset+1, msg_len-1); + if (tvbraw) { + dissector = dissect_edonkey_tcp_message; + break; + } + /* FALL THROUGH */ + default: + message_name = "Unknown"; + dissector = NULL; + break; + } + + col_append_fstr(pinfo->cinfo, COL_INFO, ": %s", message_name); + + if (edonkey_msg_tree) { + proto_tree_add_uint_format_value(edonkey_msg_tree, hf_edonkey_message_type, tvb, offset, 1, msg_type, + "%s (0x%02x)", message_name, msg_type); + if (dissector && (msg_len > 1)) { + if (!tvbraw) { + (*dissector)(msg_type, tvb, pinfo, offset+1, msg_len-1, edonkey_msg_tree); + } else { + ti = proto_tree_add_item(edonkey_msg_tree, hf_emule_zlib, tvb, + offset+1, msg_len-1, ENC_NA); + emule_zlib_tree = proto_item_add_subtree(ti, ett_emule_zlib); + add_new_data_source(pinfo, tvbraw, "Decompressed Data"); + (*dissector)(msg_type, tvbraw, pinfo, 0, tvb_captured_length(tvbraw), emule_zlib_tree); + } + } + } + + return tvb_captured_length(tvb); +} + +static int dissect_edonkey_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) +{ + guint8 protocol; + + /* An eDonkey TCP packet is at least 5 bytes long msg type + length */ + if (!tvb_bytes_exist(tvb, 0, EDONKEY_TCP_HEADER_LENGTH)) + return 0; + + protocol = tvb_get_guint8(tvb, 0); + if (try_val_to_str(protocol, edonkey_protocols) == NULL) + return 0; /* Not a known protocol */ + + col_clear(pinfo->cinfo, COL_INFO); + + tcp_dissect_pdus(tvb, pinfo, tree, edonkey_desegment, + EDONKEY_TCP_HEADER_LENGTH, get_edonkey_tcp_pdu_len, + dissect_edonkey_tcp_pdu, data); + return tvb_reported_length(tvb); +} + +static int dissect_edonkey_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) +{ + proto_item *ti; + proto_tree *edonkey_tree = NULL, *edonkey_msg_tree = NULL; + int offset = 0; + guint8 protocol, msg_type; + const gchar *protocol_name, *message_name; + + /* An eDonkey UDP packet is at least 2 bytes long */ + if (!tvb_bytes_exist(tvb, 0, EDONKEY_UDP_HEADER_LENGTH)) + return 0; + + protocol = tvb_get_guint8(tvb, offset); + if (try_val_to_str(protocol, edonkey_protocols) == NULL) + return 0; /* Not a known protocol */ + + col_set_str(pinfo->cinfo, COL_PROTOCOL, "eDonkey"); + + if (tree) { + ti = proto_tree_add_item(tree, proto_edonkey, tvb, 0, -1, ENC_NA); + edonkey_tree = proto_item_add_subtree(ti, ett_edonkey); + } + + offset = 0; + /* eDonkey UDP message - Assume that there is one message per packet */ + msg_type = tvb_get_guint8(tvb, offset+1); + protocol_name = val_to_str_const(protocol, edonkey_protocols, "Unknown"); + + if (protocol == EDONKEY_PROTO_KADEMLIA || protocol == EDONKEY_PROTO_KADEMLIA_COMP + || protocol == EDONKEY_PROTO_ADU_KADEMLIA || protocol == EDONKEY_PROTO_ADU_KADEMLIA_COMP) + message_name = val_to_str_const( msg_type, kademlia_msgs, "Unknown"); + else + message_name = val_to_str_const(msg_type, edonkey_udp_msgs, "Unknown"); + + col_add_fstr(pinfo->cinfo, COL_INFO, "%s UDP: %s", protocol_name, message_name); + + if (edonkey_tree) { + int remainingLength, extraBytes; + + ti = proto_tree_add_item(edonkey_tree, hf_edonkey_message, tvb, offset, -1, ENC_NA); + edonkey_msg_tree = proto_item_add_subtree(ti, ett_edonkey_message); + + proto_tree_add_uint(edonkey_msg_tree, hf_edonkey_protocol, tvb, offset, 1, protocol); + proto_tree_add_uint_format_value(edonkey_msg_tree, hf_edonkey_message_type, tvb, offset+1, 1, msg_type, + "%s (0x%02x)", message_name, msg_type); + + offset += EDONKEY_UDP_HEADER_LENGTH; + remainingLength = tvb_captured_length_remaining( tvb, offset ); + + if (remainingLength > 0) { + switch (protocol) { + case EDONKEY_PROTO_EDONKEY: + offset = dissect_edonkey_udp_message(msg_type, tvb, pinfo, offset, remainingLength, edonkey_msg_tree); + break; + + case EDONKEY_PROTO_EMULE_EXT: + offset = dissect_emule_udp_message(msg_type, tvb, pinfo, offset, remainingLength, edonkey_msg_tree); + break; + + case EDONKEY_PROTO_ADU_KADEMLIA: + case EDONKEY_PROTO_KADEMLIA: + offset = dissect_kademlia_udp_message(msg_type, tvb, pinfo, offset, remainingLength, edonkey_msg_tree); + break; + + case EDONKEY_PROTO_ADU_KADEMLIA_COMP: + case EDONKEY_PROTO_KADEMLIA_COMP: + offset = dissect_kademlia_udp_compressed_message(msg_type, tvb, pinfo, offset, remainingLength, edonkey_msg_tree); + break; + + default: + break; + } + } + + extraBytes = tvb_reported_length_remaining( tvb, offset ); + + if ( extraBytes > 0 ) { + /* trailing garbage or broken packet */ + proto_tree_add_uint_format(tree, hf_edonkey_unparsed_data_length, tvb, offset, extraBytes, extraBytes, + "Trailing/Undecoded data: %d bytes", extraBytes ); + } + } + + return tvb_reported_length(tvb); +} + +static void +edonkey_fmt_revision(gchar *result, guint32 revision ) +{ + snprintf( result, ITEM_LABEL_LENGTH, "%u.%u", (guint16)(revision & 0xFFFF), (guint16)(( revision & 0xFFFF0000 ) >> 16) ); +} + +void proto_register_edonkey(void) { + + static hf_register_info hf[] = { + { &hf_edonkey_message, + { "eDonkey Message", "edonkey.message", + FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } }, + { &hf_edonkey_protocol, + { "Protocol", "edonkey.protocol", + FT_UINT8, BASE_HEX, VALS(edonkey_protocols), 0, "eDonkey Protocol", HFILL } }, + { &hf_edonkey_message_length, + { "Message Length", "edonkey.message.length", + FT_UINT32, BASE_DEC, NULL, 0, "eDonkey Message Length", HFILL } }, + { &hf_edonkey_message_type, + { "Message Type", "edonkey.message.type", + FT_UINT8, BASE_HEX, NULL, 0, "eDonkey Message Type", HFILL } }, + { &hf_edonkey_client_hash, + { "Client Hash", "edonkey.client_hash", + FT_BYTES, BASE_NONE, NULL, 0, "eDonkey Client Hash", HFILL } }, + { &hf_edonkey_server_hash, + { "Server Hash", "edonkey.server_hash", + FT_BYTES, BASE_NONE, NULL, 0, "eDonkey Server Hash", HFILL } }, + { &hf_edonkey_file_hash, + { "File Hash", "edonkey.file_hash", + FT_BYTES, BASE_NONE, NULL, 0, "eDonkey File Hash", HFILL } }, + { &hf_edonkey_client_id, + { "Client ID", "edonkey.clientid", + FT_IPv4, BASE_NONE, NULL, 0, "eDonkey Client ID", HFILL } }, + { &hf_edonkey_ip, + { "IP", "edonkey.ip", + FT_IPv4, BASE_NONE, NULL, 0, "eDonkey IP", HFILL } }, + { &hf_edonkey_port, + { "Port", "edonkey.port", + FT_UINT16, BASE_DEC, NULL, 0, "eDonkey Port", HFILL } }, + { &hf_edonkey_metatag, + { "eDonkey Meta Tag", "edonkey.metatag", + FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } }, + { &hf_edonkey_metatag_type, + { "Meta Tag Type", "edonkey.metatag.type", + FT_UINT8, BASE_HEX, NULL, 0, "eDonkey Meta Tag Type", HFILL } }, + { &hf_edonkey_metatag_id, + { "Meta Tag ID", "edonkey.metatag.id", + FT_UINT8, BASE_HEX, NULL, 0, "eDonkey Meta Tag ID", HFILL } }, + { &hf_edonkey_metatag_name, + { "Meta Tag Name", "edonkey.metatag.name", + FT_STRING, BASE_NONE, NULL, 0, "eDonkey Meta Tag Name", HFILL } }, + { &hf_edonkey_metatag_namesize, + { "Meta Tag Name Size", "edonkey.metatag.namesize", + FT_UINT16, BASE_DEC, NULL, 0, "eDonkey Meta Tag Name Size", HFILL } }, + { &hf_edonkey_hash, + { "Hash", "edonkey.hash", + FT_BYTES, BASE_NONE, NULL, 0, "eDonkey Hash", HFILL } }, + { &hf_edonkey_string, + { "String", "edonkey.string", + FT_STRING, BASE_NONE, NULL, 0, "eDonkey String", HFILL } }, + { &hf_edonkey_string_length, + { "String Length", "edonkey.string_length", + FT_UINT16, BASE_DEC, NULL, 0, "eDonkey String Length", HFILL } }, + { &hf_edonkey_part_count, + { "Part Count", "edonkey.part_count", + FT_UINT16, BASE_DEC, NULL, 0, "eDonkey Part Count", HFILL } }, + { &hf_edonkey_file_status, + { "File Status", "edonkey.file_status", + FT_BYTES, BASE_NONE, NULL, 0, "eDonkey File Status", HFILL } }, + { &hf_edonkey_directory, + { "Directory", "edonkey.directory", + FT_STRING, BASE_NONE, NULL, 0, "eDonkey Directory", HFILL } }, + { &hf_edonkey_fileinfo, + { "eDonkey File Info", "edonkey.fileinfo", + FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } }, + { &hf_edonkey_serverinfo, + { "eDonkey Server Info", "edonkey.serverinfo", + FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } }, + { &hf_edonkey_clientinfo, + { "eDonkey Client Info", "edonkey.clientinfo", + FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } }, + { &hf_emule_public_key, + { "Public Key", "edonkey.emule.public_key", + FT_BYTES, BASE_NONE, NULL, 0, "eMule Public Key", HFILL } }, + { &hf_emule_signature, + { "Signature", "edonkey.emule.signature", + FT_BYTES, BASE_NONE, NULL, 0, "eMule Signature", HFILL } }, + { &hf_emule_aich_partnum, + { "Part Number", "edonkey.emule.aich_partnum", + FT_UINT16, BASE_DEC, NULL, 0, "eMule AICH Part Number", HFILL } }, + { &hf_emule_aich_root_hash, + { "AICH Root Hash", "edonkey.emule.aich_root_hash", + FT_BYTES, BASE_NONE, NULL, 0, "eMule AICH Root Hash", HFILL } }, + { &hf_emule_aich_hash_entry, + { "AICH Hash Entry", "edonkey.emule.aich_hash_entry", + FT_NONE, BASE_NONE, NULL, 0, "eMule AICH Hash Entry", HFILL } }, + { &hf_emule_aich_hash_id, + { "AICH Hash ID", "edonkey.emule.aich_hash_id", + FT_UINT16, BASE_HEX, NULL, 0, "eMule AICH Hash ID", HFILL } }, + { &hf_emule_aich_hash, + { "AICH Hash", "edonkey.emule.aich_hash", + FT_BYTES, BASE_NONE, NULL, 0, "eMule AICH Hash", HFILL } }, + { &hf_emule_multipacket_entry, + { "eMule MultiPacket Entry", "edonkey.emule.multipacket_entry", + FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } }, + { &hf_emule_multipacket_opcode, + { "MultiPacket Opcode", "edonkey.emule.multipacket_opcode", + FT_UINT8, BASE_HEX, NULL, 0, "eMule MultiPacket Opcode", HFILL } }, + { &hf_emule_sourceOBFU, + {"Source", "edonkey.source", + FT_NONE, BASE_NONE, NULL, 0, "eDonkey File Source", HFILL } }, + { &hf_emule_source_count, + { "Completed Sources Count", "edonkey.emule.source_count", + FT_UINT16, BASE_DEC, NULL, 0, "eMule Completed Sources Count", HFILL } }, + { &hf_emule_zlib, + { "Compressed Data", "edonkey.emule.zlib", + FT_NONE, BASE_NONE, NULL, 0, "eMule Compressed Data", HFILL } }, + { &hf_overnet_peer, + { "Overnet Peer", "edonkey.overnet.peer", + FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } }, + { &hf_kademlia, + { "Kademlia Packet", "edonkey.kademlia", + FT_UINT8, BASE_HEX, NULL, 0, "Kademlia Packet Type", HFILL } }, + { &hf_kademlia_peertype, + { "Peer Type", "edonkey.kademlia.peer.type", + FT_UINT8, BASE_DEC_HEX, NULL, 0, "Kademlia Peer Type", HFILL } }, + { &hf_kademlia_peer, + { "Kademlia Peer", "edonkey.kademlia.peer", + FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } }, + { &hf_kademlia_peer_id, + { "Peer ID", "edonkey.kademlia.peer.id", + FT_STRING, BASE_NONE, NULL, 0, "Kademlia Peer ID", HFILL } }, + { &hf_kademlia_hash, + { "Kademlia Hash", "edonkey.kademlia.hash", + FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, + { &hf_kademlia_file_id, + { "File ID", "edonkey.kademlia.file.id", + FT_STRING, BASE_NONE, NULL, 0, "Kademlia File ID", HFILL } }, + { &hf_kademlia_keyword_hash, + { "Keyword Hash", "edonkey.kademlia.keyword.hash", + FT_STRING, BASE_NONE, NULL, 0, "Kademlia Keyword Hash", HFILL } }, + { &hf_kademlia_recipients_id, + { "Recipient's ID", "edonkey.kademlia.recipients.id", + FT_STRING, BASE_NONE, NULL, 0, "Kademlia Recipient's ID", HFILL } }, + { &hf_kademlia_sender_id, + { "Sender ID", "edonkey.kademlia.sender.id", + FT_STRING, BASE_NONE, NULL, 0, "Kademlia Sender ID", HFILL } }, + { &hf_kademlia_target_id, + { "Target ID", "edonkey.kademlia.target.id", + FT_STRING, BASE_NONE, NULL, 0, "Kademlia Target ID", HFILL } }, + { &hf_kademlia_distance, + { "XOR Distance", "edonkey.kademlia.distance", + FT_STRING, BASE_NONE, NULL, 0, "Kademlia XOR Distance", HFILL } }, + { &hf_kademlia_version, + { "Kad Version", "edonkey.kademlia.version", + FT_UINT8, BASE_DEC_HEX, VALS(kademlia_versions), 0, NULL, HFILL } }, + { &hf_kademlia_tag_float, + { "Tag Value (Float)", "edonkey.kademlia.tag.value.float", + FT_FLOAT, BASE_NONE, NULL, 0, "Float Tag Value", HFILL } }, + { &hf_kademlia_tag_uint64, + { "Tag Value (UINT64)", "edonkey.kademlia.tag.value.uint64", + FT_UINT64, BASE_DEC_HEX, NULL, 0, "UINT64 Tag Value", HFILL } }, + { &hf_kademlia_tag_uint32, + { "Tag Value (UINT32)", "edonkey.kademlia.tag.value.uint32", + FT_UINT32, BASE_DEC_HEX, NULL, 0, "UINT32 Tag Value", HFILL } }, + { &hf_kademlia_tag_ipv4, + { "Tag Value (IPv4)", "edonkey.kademlia.tag.value.ipv4", + FT_IPv4, BASE_NONE, NULL, 0, "UINT32 Tag Value (IPv4)", HFILL } }, + { &hf_kademlia_tag_uint16, + { "Tag Value (UINT16)", "edonkey.kademlia.tag.value.uint16", + FT_UINT16, BASE_DEC_HEX, NULL, 0, "UINT16 Tag Value", HFILL } }, + { &hf_kademlia_tag_uint8, + { "Tag Value (UINT8)", "edonkey.kademlia.tag.value.uint8", + FT_UINT8, BASE_DEC_HEX, NULL, 0, "UINT8 Tag Value", HFILL } }, + { &hf_kademlia_tag_hash, + { "Tag Value (HASH)", "edonkey.kademlia.tag.value.hash", + FT_STRING, BASE_NONE, NULL, 0, "HASH Tag Value", HFILL } }, + { &hf_kademlia_tag_string, + { "Tag Value (String)", "edonkey.kademlia.tag.value.string", + FT_STRING, BASE_NONE, NULL, 0, "String Tag Value", HFILL } }, + { &hf_kademlia_tag_bsob, + { "Tag Value (BSOB)", "edonkey.kademlia.tag.value.bsob", + FT_BYTES, BASE_NONE, NULL, 0, "BSOB Tag Value", HFILL } }, + { &hf_kademlia_udp_port, + { "UDP Port", "edonkey.kademlia.udp_port", + FT_UINT16, BASE_DEC, NULL, 0, "Kademlia UDP Port", HFILL } }, + { &hf_kademlia_ip, + { "IP", "edonkey.kademlia.ip", + FT_IPv4, BASE_NONE, NULL, 0, "eDonkey IP", HFILL } }, + { &hf_kademlia_tcp_port, + { "TCP Port", "edonkey.kademlia.tcp_port", + FT_UINT16, BASE_DEC, NULL, 0, "Kademlia TCP Port", HFILL } }, +#if 0 + { &hf_kademlia_unparsed_data_length, + { "Kademlia unparsed data length", "edonkey.kademlia.unparsed", + FT_UINT16, BASE_DEC, NULL, 0, "Kademlia trailing data length", HFILL } }, +#endif + { &hf_kademlia_tag_name, + { "Tag Name", "edonkey.kademlia.tag.name", + FT_UINT8, BASE_HEX, NULL, 0, "Kademlia Tag Name String", HFILL } }, + { &hf_kademlia_tag_name_length, + { "Tag Name Length", "edonkey.kademlia.tag.name.length", + FT_UINT16, BASE_DEC, NULL, 0, "Kademlia Tag Name String Length", HFILL } }, + { &hf_kademlia_tag_type, + { "Tag Type", "edonkey.kademlia.tag.type", + FT_UINT8, BASE_HEX, VALS(kademlia_tag_types), 0, "Kademlia Tag Type", HFILL } }, + { &hf_kademlia_request_type, + { "Request Type", "edonkey.kademlia.request.type", + FT_UINT8, BASE_HEX, NULL, 0, "Kademlia Request Type", HFILL } }, + { &hf_kademlia_search_expression_type, + { "SearchExp Type", "edonkey.kademlia.search_expression.type", + FT_UINT8, BASE_HEX, VALS(edonkey_search_ext_type_vals), 0, NULL, HFILL } }, + { &hf_kademlia_search_bool_op, + { "Bool op", "edonkey.kademlia.search.bool_op", + FT_UINT8, BASE_HEX, VALS(edonkey_search_ops), 0, NULL, HFILL } }, + { &hf_kademlia_search_condition, + { "Search Condition", "edonkey.kademlia.search.condition", + FT_UINT8, BASE_HEX, NULL, 0, "Kademlia Search Condition", HFILL } }, + { &hf_kademlia_search_condition_argument_uint32, + { "32bit Argument", "edonkey.kademlia.search.condition.argument.uint32", + FT_UINT32, BASE_DEC_HEX, NULL, 0, "Kademlia Search Condition Argument 32bit Value", HFILL } }, + { &hf_kademlia_search_condition_argument_uint64, + { "64bit Argument", "edonkey.kademlia.search.condition.argument.uint64", + FT_UINT64, BASE_DEC_HEX, NULL, 0, "Kademlia Search Condition Argument 64bit Value", HFILL } }, + { &hf_edonkey_unparsed_data_length, + { "eDonkey unparsed data length", "edonkey.unparsed", + FT_UINT32, BASE_DEC_HEX, NULL, 0, "eDonkey trailing or unparsed data length", HFILL } }, + + /* Generated from convert_proto_tree_add_text.pl */ + { &hf_edonkey_list_size, { "List Size", "edonkey.list_size", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_meta_tag_value_revision, { "Meta Tag Value", "edonkey.meta_tag_value.revision", FT_UINT32, BASE_CUSTOM, CF_FUNC(edonkey_fmt_revision), 0x0, NULL, HFILL }}, + { &hf_edonkey_meta_tag_value_uint, { "Meta Tag Value", "edonkey.meta_tag_value.uint", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_boolean_array_length, { "Boolean Array Length", "edonkey.boolean_array_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_blob_length, { "BLOB Length", "edonkey.blob_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_kademlia_string, { "String", "edonkey.kademlia_string", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }}, + { &hf_emule_public_key_length, { "Public key length", "edonkey.emule.public_key_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_emule_signature_length, { "Signature length", "edonkey.emule.signature_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_obfuscation_settings, { "Obfuscation Settings", "edonkey.obfuscation_settings", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_start_offset, { "Start Offset", "edonkey.start_offset", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_start_offset_64, { "Start Offset", "edonkey.start_offset64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_end_offset, { "End Offset", "edonkey.end_offset", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_end_offset_64, { "End Offset", "edonkey.end_offset64", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_emule_file_length, { "File Length", "edonkey.emule.file_length", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_overnet_peer_type, { "Peer Type", "edonkey.overnet_peer_type", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_more_search_file_results, { "More", "edonkey.more_search_file_results", FT_BOOLEAN, 8, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_file_size, { "File size", "edonkey.file_size", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_large_file_size, { "Large file size", "edonkey.large_file_size", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_number_of_users, { "Number of Users", "edonkey.number_of_users", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_number_of_files, { "Number of Files", "edonkey.number_of_files", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_message_data, { "Message Data", "edonkey.message_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_emule_version, { "Version", "edonkey.emule.version", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_emule_queue_ranking, { "Queue Ranking", "edonkey.emule.queue_ranking", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_emule_ident_state, { "State", "edonkey.emule.state", FT_UINT8, BASE_DEC|BASE_RANGE_STRING, RVALS(emule_ident_state_rvals), 0x0, NULL, HFILL }}, + { &hf_edonkey_emule_rndchallenge, { "Rndchallenge", "edonkey.emule.rndchallenge", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_emule_sig_ip_used, { "Sig IP Used", "edonkey.emule.sig_ip_used", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_packed_length, { "Packed Length", "edonkey.emule.packed_length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_compressed_message_data, { "Compressed Message Data", "edonkey.emule.compressed_message_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_challenge, { "Challenge", "edonkey.challenge", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_max_number_of_users, { "Max number of Users", "edonkey.max_number_of_users", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_search_type, { "Search Type", "edonkey.search_type", FT_UINT8, BASE_DEC, VALS(edonkey_search_type_vals), 0x0, NULL, HFILL }}, + { &hf_edonkey_search_range_min, { "Search Range Min", "edonkey.search_range.min", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_search_range_max, { "Search Range Max", "edonkey.search_range.max", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_kademlia_uload, { "uLoad", "edonkey.kademlia_uload", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_kademlia_start_position, { "Start position", "edonkey.kademlia_start_position", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_kademlia_filesize, { "Filesize", "edonkey.kademlia_filesize", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_kademlia_restrictive, { "Restrictive", "edonkey.kademlia_restrictive", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_broken_compressed_data, { "Broken Compressed data", "edonkey.broken_compressed_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_search_limit, { "Search Limit", "edonkey.search_limit", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_edonkey_search_limit_type, { "Limit Type", "edonkey.search_limit_type", FT_UINT8, BASE_DEC, VALS(edonkey_search_conds), 0x0, NULL, HFILL }}, + { &hf_edonkey_search_ops, { "Search Operator", "edonkey.search_ops", FT_UINT8, BASE_HEX, VALS(edonkey_search_ops), 0x0, NULL, HFILL }}, + { &hf_edonkey_user_hash_length, { "User hash length", "edonkey.user_hash_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }}, + }; + + static gint *ett[] = { + &ett_edonkey, + &ett_edonkey_message, + &ett_edonkey_metatag, + &ett_edonkey_search, + &ett_edonkey_fileinfo, + &ett_edonkey_serverinfo, + &ett_edonkey_clientinfo, + &ett_emule_aichhash, + &ett_emule_multipacket, + &ett_emule_zlib, + &ett_overnet_peer, + &ett_emule_sourceOBFU, + &ett_edonkey_listitem, + &ett_kademlia_search_expression, + &ett_kademlia_tag + }; + + static ei_register_info ei[] = { + { &ei_kademlia_tag_type, { "edonkey.kademlia.tag.type.undecoded", PI_PROTOCOL, PI_WARN, "Tag value not decoded", EXPFILL }}, + { &ei_kademlia_search_expression_type, { "edonkey.kademlia.search_expression.type.undecoded", PI_UNDECODED, PI_WARN, "NOT DECODED op", EXPFILL }}, + }; + + module_t *edonkey_module; + expert_module_t* expert_edonkey; + + proto_edonkey = proto_register_protocol("eDonkey Protocol", "EDONKEY", "edonkey"); + + proto_register_field_array(proto_edonkey, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + expert_edonkey = expert_register_protocol(proto_edonkey); + expert_register_field_array(expert_edonkey, ei, array_length(ei)); + + edonkey_tcp_handle = register_dissector("edonkey.tcp", dissect_edonkey_tcp, proto_edonkey); + edonkey_udp_handle = register_dissector("edonkey.udp", dissect_edonkey_udp, proto_edonkey); + + edonkey_module = prefs_register_protocol(proto_edonkey, NULL); + prefs_register_bool_preference(edonkey_module, "desegment", + "Reassemble eDonkey messages spanning multiple TCP segments", + "Whether the eDonkey dissector should reassemble messages spanning multiple TCP segments." + " To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.", + &edonkey_desegment); +} + +void proto_reg_handoff_edonkey(void) { + + dissector_add_uint_range_with_preference("tcp.port", EDONKEY_TCP_PORT_RANGE, edonkey_tcp_handle); + dissector_add_uint_range_with_preference("udp.port", EDONKEY_UDP_PORT_RANGE, edonkey_udp_handle); +} + +/* + * 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: + */ |