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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-lapbether.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-lapbether.c')
-rw-r--r-- | epan/dissectors/packet-lapbether.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/epan/dissectors/packet-lapbether.c b/epan/dissectors/packet-lapbether.c new file mode 100644 index 0000000..7e6471c --- /dev/null +++ b/epan/dissectors/packet-lapbether.c @@ -0,0 +1,104 @@ +/* packet-lapbether.c + * Routines for lapbether frame disassembly + * Richard Sharpe <rsharpe@ns.aus.com> based on the lapb module by + * Olivier Abad <oabad@noos.fr> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "config.h" + +#include <epan/packet.h> +#include <epan/etypes.h> + +void proto_register_lapbether(void); +void proto_reg_handoff_lapbether(void); + +static int proto_lapbether = -1; + +static int hf_lapbether_length = -1; + +static gint ett_lapbether = -1; + +static dissector_handle_t lapbether_handle; +static dissector_handle_t lapb_handle; + +static int +dissect_lapbether(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + proto_tree *lapbether_tree, *ti; + int len; + tvbuff_t *next_tvb; + + col_set_str(pinfo->cinfo, COL_PROTOCOL, "LAPBETHER"); + col_clear(pinfo->cinfo, COL_INFO); + + len = tvb_get_guint8(tvb, 0) + tvb_get_guint8(tvb, 1) * 256; + + if (tree) { + + ti = proto_tree_add_protocol_format(tree, proto_lapbether, tvb, 0, 2, + "LAPBETHER"); + + lapbether_tree = proto_item_add_subtree(ti, ett_lapbether); + proto_tree_add_uint_format(lapbether_tree, hf_lapbether_length, tvb, 0, 2, + len, "Length: %u", len); + + } + + next_tvb = tvb_new_subset_length(tvb, 2, len); + call_dissector(lapb_handle, next_tvb, pinfo, tree); + + return tvb_captured_length(tvb); +} + +void +proto_register_lapbether(void) +{ + static hf_register_info hf[] = { + { &hf_lapbether_length, + { "Length Field", "lapbether.length", FT_UINT16, BASE_DEC, NULL, 0x0, + "LAPBEther Length Field", HFILL }}, + + }; + static gint *ett[] = { + &ett_lapbether, + }; + + proto_lapbether = proto_register_protocol ("Link Access Procedure Balanced Ethernet (LAPBETHER)", + "LAPBETHER", "lapbether"); + proto_register_field_array (proto_lapbether, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + lapbether_handle = register_dissector("lapbether", dissect_lapbether, proto_lapbether); +} + +/* The registration hand-off routine */ +void +proto_reg_handoff_lapbether(void) +{ + /* + * Get a handle for the LAPB dissector. + */ + lapb_handle = find_dissector_add_dependency("lapb", proto_lapbether); + + dissector_add_uint("ethertype", ETHERTYPE_DEC, lapbether_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: + */ |