Coverage Report

Created: 2026-09-28 06:52

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/wireshark/epan/dissectors/packet-wfleet-hdlc.c
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/* packet-wfleet-hdlc.c
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 * Routines for Wellfleet HDLC packet disassembly
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 * Copied from the Cisco HDLC packet disassembly routines
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 *
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 * Wireshark - Network traffic analyzer
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 * By Gerald Combs <gerald@wireshark.org>
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 * Copyright 1998 Gerald Combs
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 *
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 * SPDX-License-Identifier: GPL-2.0-or-later
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 */
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/addr_resolv.h>
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void proto_register_wfleet_hdlc(void);
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void proto_reg_handoff_wfleet_hdlc(void);
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static int proto_wfleet_hdlc;
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static int hf_wfleet_hdlc_addr;
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static int hf_wfleet_hdlc_cmd;
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static int ett_wfleet_hdlc;
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static dissector_handle_t eth_withoutfcs_handle;
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static dissector_handle_t wfleet_hdlc_handle;
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static const value_string wfleet_hdlc_cmd_vals[] = {
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  { 0x03, "Un-numbered I frame"},
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  { 0,    NULL}
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};
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static int
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dissect_wfleet_hdlc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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  proto_item *ti;
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  proto_tree *fh_tree = NULL;
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  tvbuff_t   *next_tvb;
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  uint8_t    addr;
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  uint8_t    cmd;
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  col_set_str(pinfo->cinfo, COL_RES_DL_SRC, "N/A");
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  col_set_str(pinfo->cinfo, COL_RES_DL_DST, "N/A");
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  col_set_str(pinfo->cinfo, COL_PROTOCOL, "WHDLC");
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  col_clear(pinfo->cinfo, COL_INFO);
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  addr = tvb_get_uint8(tvb, 0);
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  cmd = tvb_get_uint8(tvb, 1);
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  if (tree) {
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    ti = proto_tree_add_item(tree, proto_wfleet_hdlc, tvb, 0, 2, ENC_NA);
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    fh_tree = proto_item_add_subtree(ti, ett_wfleet_hdlc);
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    proto_tree_add_uint(fh_tree, hf_wfleet_hdlc_addr, tvb, 0, 1, addr);
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    proto_tree_add_uint(fh_tree, hf_wfleet_hdlc_cmd, tvb, 1, 1, cmd);
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  }
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  /*
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   * Build a tvb of the piece past the first two bytes and call the
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   * ethernet dissector
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   */
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  next_tvb = tvb_new_subset_remaining(tvb, 2);
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  call_dissector(eth_withoutfcs_handle, next_tvb, pinfo, tree);
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  return tvb_captured_length(tvb);
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}
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void
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proto_register_wfleet_hdlc(void)
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{
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  static hf_register_info hf[] = {
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    { &hf_wfleet_hdlc_addr,
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      { "Address", "wfleet_hdlc.address", FT_UINT8, BASE_HEX,
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        NULL, 0x0, NULL, HFILL }},
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    { &hf_wfleet_hdlc_cmd,
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      { "Command", "wfleet_hdlc.command", FT_UINT8, BASE_HEX,
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        VALS(wfleet_hdlc_cmd_vals), 0x0, NULL, HFILL }},
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  };
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  static int *ett[] = {
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    &ett_wfleet_hdlc,
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  };
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  proto_wfleet_hdlc = proto_register_protocol("Wellfleet HDLC", "WHDLC", "whdlc");
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  proto_register_field_array(proto_wfleet_hdlc, hf, array_length(hf));
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  proto_register_subtree_array(ett, array_length(ett));
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  wfleet_hdlc_handle = register_dissector("wfleet_hdlc", dissect_wfleet_hdlc, proto_wfleet_hdlc);
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}
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void
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proto_reg_handoff_wfleet_hdlc(void)
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{
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  dissector_add_uint("wtap_encap", WTAP_ENCAP_WFLEET_HDLC, wfleet_hdlc_handle);
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  /*
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   * Find the eth dissector and save a ref to it
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   */
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  eth_withoutfcs_handle = find_dissector_add_dependency("eth_withoutfcs", proto_wfleet_hdlc);
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}
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/*
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 * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
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 *
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 * Local Variables:
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 * c-basic-offset: 2
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 * tab-width: 8
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 * indent-tabs-mode: nil
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 * End:
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 *
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 * ex: set shiftwidth=2 tabstop=8 expandtab:
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 * :indentSize=2:tabSize=8:noTabs=true:
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 */