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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:34:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:34:10 +0000 |
commit | e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc (patch) | |
tree | 68cb5ef9081156392f1dd62a00c6ccc1451b93df /epan/dissectors/packet-daytime.c | |
parent | Initial commit. (diff) | |
download | wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.tar.xz wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.zip |
Adding upstream version 4.2.2.upstream/4.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'epan/dissectors/packet-daytime.c')
-rw-r--r-- | epan/dissectors/packet-daytime.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/epan/dissectors/packet-daytime.c b/epan/dissectors/packet-daytime.c new file mode 100644 index 00000000..98ae8bff --- /dev/null +++ b/epan/dissectors/packet-daytime.c @@ -0,0 +1,101 @@ +/* packet-daytime.c + * Routines for Daytime Protocol (RFC 867) packet dissection + * Copyright 2006, Stephen Fisher (see AUTHORS file) + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * Copied from packet-time.c + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include "config.h" + +#include <epan/packet.h> + +void proto_register_daytime(void); +void proto_reg_handoff_daytime(void); + +static dissector_handle_t daytime_handle; + +static int proto_daytime = -1; + +static int hf_daytime_string = -1; +static int hf_response_request = -1; + +static gint ett_daytime = -1; + +/* This dissector works for TCP and UDP daytime packets */ +#define DAYTIME_PORT 13 + +static int +dissect_daytime(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + proto_tree *daytime_tree; + proto_item *ti; + + col_set_str(pinfo->cinfo, COL_PROTOCOL, "DAYTIME"); + + col_add_fstr(pinfo->cinfo, COL_INFO, "DAYTIME %s", + pinfo->srcport == pinfo->match_uint ? "Response":"Request"); + + if (tree) { + + ti = proto_tree_add_item(tree, proto_daytime, tvb, 0, -1, ENC_NA); + daytime_tree = proto_item_add_subtree(ti, ett_daytime); + + proto_tree_add_boolean(daytime_tree, hf_response_request, tvb, 0, 0, pinfo->srcport==DAYTIME_PORT); + if (pinfo->srcport == DAYTIME_PORT) { + proto_tree_add_item(daytime_tree, hf_daytime_string, tvb, 0, -1, ENC_ASCII); + } + } + return tvb_captured_length(tvb); +} + +void +proto_register_daytime(void) +{ + static hf_register_info hf[] = { + { &hf_daytime_string, + { "Daytime", "daytime.string", + FT_STRING, BASE_NONE, NULL, 0x0, + "String containing time and date", HFILL } + }, + { &hf_response_request, + { "Type", "daytime.response_request", + FT_BOOLEAN, 8, TFS(&tfs_response_request), 0x0, + NULL, HFILL } + }, + }; + + static gint *ett[] = { + &ett_daytime, + }; + + proto_daytime = proto_register_protocol("Daytime Protocol", "DAYTIME", "daytime"); + proto_register_field_array(proto_daytime, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + daytime_handle = register_dissector("daytime", dissect_daytime, proto_daytime); +} + +void +proto_reg_handoff_daytime(void) +{ + dissector_add_uint_with_preference("udp.port", DAYTIME_PORT, daytime_handle); + dissector_add_uint_with_preference("tcp.port", DAYTIME_PORT, daytime_handle); +} + +/* + * Editor modelines - https://www.wireshark.org/tools/modelines.html + * + * Local Variables: + * c-basic-offset: 2 + * tab-width: 8 + * indent-tabs-mode: nil + * End: + * + * ex: set shiftwidth=2 tabstop=8 expandtab: + * :indentSize=2:tabSize=8:noTabs=true: + */ |