From e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 10 Apr 2024 22:34:10 +0200 Subject: Adding upstream version 4.2.2. Signed-off-by: Daniel Baumann --- epan/dissectors/packet-ayiya.c | 211 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 211 insertions(+) create mode 100644 epan/dissectors/packet-ayiya.c (limited to 'epan/dissectors/packet-ayiya.c') diff --git a/epan/dissectors/packet-ayiya.c b/epan/dissectors/packet-ayiya.c new file mode 100644 index 00000000..b01bc894 --- /dev/null +++ b/epan/dissectors/packet-ayiya.c @@ -0,0 +1,211 @@ +/* packet-ayiya.c + * Anything in Anything protocol + * Copyright 2008, Jelmer Vernooij + * + * Wireshark - Network traffic analyzer + * By Gerald Combs + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + * + * ref: http://unfix.org/~jeroen/archive/drafts/draft-massar-v6ops-ayiya-02.html#anchor4 + */ + +#include "config.h" + +#include +#include + +void proto_register_ayiya(void); +void proto_reg_handoff_ayiya(void); + +static dissector_table_t ip_dissector_table; + +static int proto_ayiya = -1; +static int hf_id_len = -1; +static int hf_id_type = -1; +static int hf_sig_len = -1; +static int hf_hash_method = -1; +static int hf_auth_method = -1; +static int hf_opcode = -1; +static int hf_next_header = -1; +static int hf_epoch = -1; +static int hf_identity = -1; +static int hf_signature = -1; + +static gint ett_ayiya = -1; + +static dissector_handle_t ayiya_handle = NULL; + +static const value_string identity_types[] = { + { 0x0, "None" }, + { 0x1, "Integer" }, + { 0x2, "ASCII string" }, + { 0, NULL } +}; + +static const value_string hash_methods[] = { + { 0x0, "No hash" }, + { 0x1, "MD5" }, + { 0x2, "SHA1" }, + { 0, NULL } +}; + +static const value_string auth_methods[] = { + { 0x0, "No authentication" }, + { 0x1, "Hash using a Shared Secret" }, + { 0x2, "Hash using a public/private key method" }, + { 0, NULL } +}; + +#define OPCODE_FORWARD 1 + +static const value_string opcodes[] = { + { 0x0, "No Operation / Heartbeat" }, + { 0x1, "Forward" }, + { 0x2, "Echo Request" }, + { 0x3, "Echo Request and Forward" }, + { 0x4, "Echo Response" }, + { 0x5, "MOTD" }, + { 0x6, "Query Request" }, + { 0x7, "Query Response" }, + { 0, NULL } +}; + +#define UDP_PORT_AYIYA 5072 + +static int +dissect_ayiya(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + proto_tree *ayiya_tree; + int offset = 0; + int idlen, siglen, ayiya_len; + guint8 next_header, opcode; + tvbuff_t *payload; + + idlen = 1 << tvb_get_bits8(tvb, 0, 4); + siglen = tvb_get_bits8(tvb, 8, 4) * 4; + opcode = tvb_get_bits8(tvb, 20, 4); + next_header = tvb_get_guint8(tvb, 3); + + ayiya_len = 8+idlen+siglen; + + col_set_str(pinfo->cinfo, COL_PROTOCOL, "AYIYA"); + + if (tree) { + proto_item *ti; + ti = proto_tree_add_protocol_format( tree, proto_ayiya, tvb, + offset, ayiya_len, "AYIYA" ); + ayiya_tree = proto_item_add_subtree(ti, ett_ayiya); + + proto_tree_add_bits_item(ayiya_tree, hf_id_len, tvb, 0, 4, ENC_BIG_ENDIAN); + proto_tree_add_bits_item(ayiya_tree, hf_id_type, tvb, 4, 4, ENC_BIG_ENDIAN); + proto_tree_add_bits_item(ayiya_tree, hf_sig_len, tvb, 8, 4, ENC_BIG_ENDIAN); + proto_tree_add_bits_item(ayiya_tree, hf_hash_method, tvb, 12, 4, ENC_BIG_ENDIAN); + proto_tree_add_bits_item(ayiya_tree, hf_auth_method, tvb, 16, 4, ENC_BIG_ENDIAN); + proto_tree_add_bits_item(ayiya_tree, hf_opcode, tvb, 20, 4, ENC_BIG_ENDIAN); + proto_tree_add_uint_format_value(ayiya_tree, hf_next_header, tvb, + 3, 1, next_header, + "%s (0x%02x)", + ipprotostr(next_header), next_header); + proto_tree_add_item(ayiya_tree, hf_epoch, tvb, 4, 4, ENC_TIME_SECS|ENC_BIG_ENDIAN); + proto_tree_add_item(ayiya_tree, hf_identity, tvb, 8, idlen, ENC_NA); + proto_tree_add_item(ayiya_tree, hf_signature, tvb, 8+idlen, siglen, ENC_NA); + } + offset = ayiya_len; + switch (opcode) { + case OPCODE_FORWARD: + payload = tvb_new_subset_remaining(tvb, offset); + dissector_try_uint(ip_dissector_table, next_header, payload, pinfo, tree); + break; + } + + return tvb_captured_length(tvb); +} + +void +proto_register_ayiya(void) +{ + static hf_register_info hf[] = { + { &hf_id_len, + { "Identity field length", "ayiya.idlen", FT_UINT8, + BASE_HEX, NULL, 0x0, NULL, HFILL + } + }, + { &hf_id_type, + { "Identity field type", "ayiya.idtype", FT_UINT8, + BASE_HEX, VALS(identity_types), 0x0, NULL, HFILL + } + }, + { &hf_sig_len, + { "Signature Length", "ayiya.siglen", FT_UINT8, + BASE_HEX, NULL, 0x0, NULL, HFILL + } + }, + { &hf_hash_method, + { "Hash method", "ayiya.hashmethod", FT_UINT8, + BASE_HEX, VALS(hash_methods), 0x0, NULL, HFILL + } + }, + { &hf_auth_method, + { "Authentication method", "ayiya.authmethod", FT_UINT8, + BASE_HEX, VALS(auth_methods), 0x0, NULL, HFILL + } + }, + { &hf_opcode, + { "Operation Code", "ayiya.opcode", FT_UINT8, + BASE_HEX, VALS(opcodes), 0x0, NULL, HFILL + } + }, + { &hf_next_header, + { "Next Header", "ayiya.nextheader", FT_UINT8, + BASE_HEX, NULL, 0x0, NULL, HFILL + } + }, + { &hf_epoch, + { "Epoch", "ayiya.epoch", FT_ABSOLUTE_TIME, + ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL + } + }, + { &hf_identity, + { "Identity", "ayiya.identity", FT_BYTES, + BASE_NONE, NULL, 0x0, NULL, HFILL + } + }, + { &hf_signature, + { "Signature", "ayiya.signature", FT_BYTES, + BASE_NONE, NULL, 0x0, NULL, HFILL + } + }, + }; + static gint *ett[] = { + &ett_ayiya, + }; + + proto_ayiya = proto_register_protocol("Anything in Anything Protocol", + "AYIYA", "ayiya"); + ayiya_handle = register_dissector("ayiya", dissect_ayiya, proto_ayiya); + proto_register_field_array(proto_ayiya, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); +} + +void +proto_reg_handoff_ayiya(void) +{ + dissector_add_uint_with_preference("udp.port", UDP_PORT_AYIYA, ayiya_handle); + + ip_dissector_table = find_dissector_table("ip.proto"); +} + +/* + * 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: + */ -- cgit v1.2.3