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authorGilbert Ramirez <gram@alumni.rice.edu>2004-07-18 18:06:47 +0000
committerGilbert Ramirez <gram@alumni.rice.edu>2004-07-18 18:06:47 +0000
commit669db206cb1f270046ad400fff7655e20c63e723 (patch)
tree4eff24a2e16c8963e497e1fc575f35e6af59bd26 /packet-lapd.c
parentae46c27a38700af669ef907491081f09df6f6b2c (diff)
Move dissectors to epan/dissectors directory.
Also move ncp222.py, x11-fields, process-x11-fields.pl, make-reg-dotc, and make-reg-dotc.py. Adjust #include lines in files that include packet-*.h files. svn path=/trunk/; revision=11410
Diffstat (limited to 'packet-lapd.c')
-rw-r--r--packet-lapd.c296
1 files changed, 0 insertions, 296 deletions
diff --git a/packet-lapd.c b/packet-lapd.c
deleted file mode 100644
index d766047ef8..0000000000
--- a/packet-lapd.c
+++ /dev/null
@@ -1,296 +0,0 @@
-/* packet-lapd.c
- * Routines for LAPD frame disassembly
- * Gilbert Ramirez <gram@alumni.rice.edu>
- *
- * $Id$
- *
- * Ethereal - Network traffic analyzer
- * By Gerald Combs <gerald@ethereal.com>
- * Copyright 1998
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <stdio.h>
-#include <glib.h>
-#include <string.h>
-#include <epan/packet.h>
-#include "xdlc.h"
-
-#include "lapd_sapi.h"
-
-/* ISDN/LAPD references:
- *
- * http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/isdn.htm
- * http://www.ece.wpi.edu/courses/ee535/hwk11cd95/agrebe/agrebe.html
- * http://www.acacia-net.com/Clarinet/Protocol/q9213o84.htm
- */
-
-static int proto_lapd = -1;
-static int hf_lapd_address = -1;
-static int hf_lapd_sapi = -1;
-static int hf_lapd_cr = -1;
-static int hf_lapd_ea1 = -1;
-static int hf_lapd_tei = -1;
-static int hf_lapd_ea2 = -1;
-static int hf_lapd_control = -1;
-static int hf_lapd_n_r = -1;
-static int hf_lapd_n_s = -1;
-static int hf_lapd_p = -1;
-static int hf_lapd_p_ext = -1;
-static int hf_lapd_f = -1;
-static int hf_lapd_f_ext = -1;
-static int hf_lapd_s_ftype = -1;
-static int hf_lapd_u_modifier_cmd = -1;
-static int hf_lapd_u_modifier_resp = -1;
-static int hf_lapd_ftype_i = -1;
-static int hf_lapd_ftype_s_u = -1;
-static int hf_lapd_ftype_s_u_ext = -1;
-
-static gint ett_lapd = -1;
-static gint ett_lapd_address = -1;
-static gint ett_lapd_control = -1;
-
-static dissector_table_t lapd_sapi_dissector_table;
-
-static dissector_handle_t data_handle;
-static dissector_handle_t tei_handle;
-
-/*
- * Bits in the address field.
- */
-#define LAPD_SAPI 0xfc00 /* Service Access Point Identifier */
-#define LAPD_SAPI_SHIFT 10
-#define LAPD_CR 0x0200 /* Command/Response bit */
-#define LAPD_EA1 0x0100 /* First Address Extension bit */
-#define LAPD_TEI 0x00fe /* Terminal Endpoint Identifier */
-#define LAPD_EA2 0x0001 /* Second Address Extension bit */
-
-static const value_string lapd_sapi_vals[] = {
- { LAPD_SAPI_Q931, "Q.931 Call control procedure" },
- { LAPD_SAPI_PM_Q931, "Packet mode Q.931 Call control procedure" },
- { LAPD_SAPI_X25, "X.25 Level 3 procedures" },
- { LAPD_SAPI_L2, "Layer 2 management procedures" },
- { 0, NULL }
-};
-
-/* Used only for U frames */
-static const xdlc_cf_items lapd_cf_items = {
- NULL,
- NULL,
- &hf_lapd_p,
- &hf_lapd_f,
- NULL,
- &hf_lapd_u_modifier_cmd,
- &hf_lapd_u_modifier_resp,
- NULL,
- &hf_lapd_ftype_s_u
-};
-
-/* Used only for I and S frames */
-static const xdlc_cf_items lapd_cf_items_ext = {
- &hf_lapd_n_r,
- &hf_lapd_n_s,
- &hf_lapd_p_ext,
- &hf_lapd_f_ext,
- &hf_lapd_s_ftype,
- NULL,
- NULL,
- &hf_lapd_ftype_i,
- &hf_lapd_ftype_s_u_ext
-};
-
-static void
-dissect_lapd(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- proto_tree *lapd_tree, *addr_tree;
- proto_item *lapd_ti, *addr_ti;
- guint16 control;
- int lapd_header_len;
- guint16 address, cr, sapi;
- gboolean is_response;
- tvbuff_t *next_tvb;
-
- if (check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo, COL_PROTOCOL, "LAPD");
- if (check_col(pinfo->cinfo, COL_INFO))
- col_clear(pinfo->cinfo, COL_INFO);
-
- address = tvb_get_ntohs(tvb, 0);
- cr = address & LAPD_CR;
- sapi = (address & LAPD_SAPI) >> LAPD_SAPI_SHIFT;
- lapd_header_len = 2; /* address */
-
- if (pinfo->p2p_dir == P2P_DIR_SENT) {
- is_response = cr ? TRUE : FALSE;
- if(check_col(pinfo->cinfo, COL_RES_DL_DST))
- col_set_str(pinfo->cinfo, COL_RES_DL_DST, "Network");
- if(check_col(pinfo->cinfo, COL_RES_DL_SRC))
- col_set_str(pinfo->cinfo, COL_RES_DL_SRC, "User");
- }
- else {
- /* XXX - what if the direction is unknown? */
- is_response = cr ? FALSE : TRUE;
- if(check_col(pinfo->cinfo, COL_RES_DL_DST))
- col_set_str(pinfo->cinfo, COL_RES_DL_DST, "User");
- if(check_col(pinfo->cinfo, COL_RES_DL_SRC))
- col_set_str(pinfo->cinfo, COL_RES_DL_SRC, "Network");
- }
-
- if (tree) {
- lapd_ti = proto_tree_add_item(tree, proto_lapd, tvb, 0, -1,
- FALSE);
- lapd_tree = proto_item_add_subtree(lapd_ti, ett_lapd);
-
- addr_ti = proto_tree_add_uint(lapd_tree, hf_lapd_address, tvb,
- 0, 2, address);
- addr_tree = proto_item_add_subtree(addr_ti, ett_lapd_address);
-
- proto_tree_add_uint(addr_tree, hf_lapd_sapi,tvb, 0, 1, address);
- proto_tree_add_uint(addr_tree, hf_lapd_cr, tvb, 0, 1, address);
- proto_tree_add_uint(addr_tree, hf_lapd_ea1, tvb, 0, 1, address);
- proto_tree_add_uint(addr_tree, hf_lapd_tei, tvb, 1, 1, address);
- proto_tree_add_uint(addr_tree, hf_lapd_ea2, tvb, 1, 1, address);
- }
- else {
- lapd_ti = NULL;
- lapd_tree = NULL;
- }
-
- control = dissect_xdlc_control(tvb, 2, pinfo, lapd_tree, hf_lapd_control,
- ett_lapd_control, &lapd_cf_items, &lapd_cf_items_ext, NULL, NULL,
- is_response, TRUE, FALSE);
- lapd_header_len += XDLC_CONTROL_LEN(control, TRUE);
-
- if (tree)
- proto_item_set_len(lapd_ti, lapd_header_len);
-
- next_tvb = tvb_new_subset(tvb, lapd_header_len, -1, -1);
- if (XDLC_IS_INFORMATION(control)) {
- /* call next protocol */
- if (!dissector_try_port(lapd_sapi_dissector_table, sapi,
- next_tvb, pinfo, tree))
- call_dissector(data_handle,next_tvb, pinfo, tree);
- } else
- call_dissector(data_handle,next_tvb, pinfo, tree);
-}
-
-void
-proto_register_lapd(void)
-{
- static hf_register_info hf[] = {
- { &hf_lapd_address,
- { "Address Field", "lapd.address", FT_UINT16, BASE_HEX, NULL, 0x0,
- "Address", HFILL }},
-
- { &hf_lapd_sapi,
- { "SAPI", "lapd.sapi", FT_UINT16, BASE_DEC, VALS(lapd_sapi_vals), LAPD_SAPI,
- "Service Access Point Identifier", HFILL }},
-
- { &hf_lapd_cr,
- { "C/R", "lapd.cr", FT_UINT16, BASE_DEC, NULL, LAPD_CR,
- "Command/Response bit", HFILL }},
-
- { &hf_lapd_ea1,
- { "EA1", "lapd.ea1", FT_UINT16, BASE_DEC, NULL, LAPD_EA1,
- "First Address Extension bit", HFILL }},
-
- { &hf_lapd_tei,
- { "TEI", "lapd.tei", FT_UINT16, BASE_DEC, NULL, LAPD_TEI,
- "Terminal Endpoint Identifier", HFILL }},
-
- { &hf_lapd_ea2,
- { "EA2", "lapd.ea2", FT_UINT16, BASE_DEC, NULL, LAPD_EA2,
- "Second Address Extension bit", HFILL }},
-
- { &hf_lapd_control,
- { "Control Field", "lapd.control", FT_UINT16, BASE_HEX, NULL, 0x0,
- "Control field", HFILL }},
-
- { &hf_lapd_n_r,
- { "N(R)", "lapd.control.n_r", FT_UINT16, BASE_DEC,
- NULL, XDLC_N_R_EXT_MASK, "", HFILL }},
-
- { &hf_lapd_n_s,
- { "N(S)", "lapd.control.n_s", FT_UINT16, BASE_DEC,
- NULL, XDLC_N_S_EXT_MASK, "", HFILL }},
-
- { &hf_lapd_p,
- { "Poll", "lapd.control.p", FT_BOOLEAN, 8,
- TFS(&flags_set_truth), XDLC_P_F, "", HFILL }},
-
- { &hf_lapd_p_ext,
- { "Poll", "lapd.control.p", FT_BOOLEAN, 16,
- TFS(&flags_set_truth), XDLC_P_F_EXT, "", HFILL }},
-
- { &hf_lapd_f,
- { "Final", "lapd.control.f", FT_BOOLEAN, 8,
- TFS(&flags_set_truth), XDLC_P_F, "", HFILL }},
-
- { &hf_lapd_f_ext,
- { "Final", "lapd.control.f", FT_BOOLEAN, 16,
- TFS(&flags_set_truth), XDLC_P_F_EXT, "", HFILL }},
-
- { &hf_lapd_s_ftype,
- { "Supervisory frame type", "lapd.control.s_ftype", FT_UINT16, BASE_HEX,
- VALS(stype_vals), XDLC_S_FTYPE_MASK, "", HFILL }},
-
- { &hf_lapd_u_modifier_cmd,
- { "Command", "lapd.control.u_modifier_cmd", FT_UINT8, BASE_HEX,
- VALS(modifier_vals_cmd), XDLC_U_MODIFIER_MASK, "", HFILL }},
-
- { &hf_lapd_u_modifier_resp,
- { "Response", "lapd.control.u_modifier_resp", FT_UINT8, BASE_HEX,
- VALS(modifier_vals_resp), XDLC_U_MODIFIER_MASK, "", HFILL }},
-
- { &hf_lapd_ftype_i,
- { "Frame type", "lapd.control.ftype", FT_UINT16, BASE_HEX,
- VALS(ftype_vals), XDLC_I_MASK, "", HFILL }},
-
- { &hf_lapd_ftype_s_u,
- { "Frame type", "lapd.control.ftype", FT_UINT8, BASE_HEX,
- VALS(ftype_vals), XDLC_S_U_MASK, "", HFILL }},
-
- { &hf_lapd_ftype_s_u_ext,
- { "Frame type", "lapd.control.ftype", FT_UINT16, BASE_HEX,
- VALS(ftype_vals), XDLC_S_U_MASK, "", HFILL }},
- };
- static gint *ett[] = {
- &ett_lapd,
- &ett_lapd_address,
- &ett_lapd_control,
- };
-
- proto_lapd = proto_register_protocol("Link Access Procedure, Channel D (LAPD)",
- "LAPD", "lapd");
- proto_register_field_array (proto_lapd, hf, array_length(hf));
- proto_register_subtree_array(ett, array_length(ett));
-
- register_dissector("lapd", dissect_lapd, proto_lapd);
-
- lapd_sapi_dissector_table = register_dissector_table("lapd.sapi",
- "LAPD SAPI", FT_UINT16, BASE_DEC);
-}
-
-void
-proto_reg_handoff_lapd(void)
-{
- data_handle = find_dissector("data");
- tei_handle = find_dissector("tei");
-}