1e60d63c8c
This saves many dissectors the need to find the data dissector and store a handle to it. There were also some that were finding it, but not using it. For others this was the only reason for their handoff function, so it could be eliminated. Change-Id: I5d3f951ee1daa3d30c060d21bd12bbc881a8027b Reviewed-on: https://code.wireshark.org/review/14530 Petri-Dish: Michael Mann <mmann78@netscape.net> Reviewed-by: Michael Mann <mmann78@netscape.net>
138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
/* packet-pw-common.c
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* Common functions and objects for PWE3 dissectors.
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* Copyright 2009, Artem Tamazov <artem.tamazov@tellabs.com>
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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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <wsutil/str_util.h>
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#include "packet-pw-common.h"
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void proto_register_pw_padding(void);
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void proto_reg_handoff_pw_padding(void);
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static const char string_ok[] = "Ok";
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const value_string
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pwc_vals_cw_l_bit[] = {
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{ 0x0, string_ok },
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{ 0x1, "Attachment Circuit Fault" },
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{ 0, NULL }
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};
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const value_string
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pwc_vals_cw_r_bit[] = {
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{ 0x0, string_ok },
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{ 0x1, "Packet Loss State" },
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{ 0, NULL }
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};
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const value_string
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pwc_vals_cw_frag[] = {
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{ 0x0, "Unfragmented" },
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{ 0x1, "First fragment" },
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{ 0x2, "Last fragment" },
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{ 0x3, "Intermediate fragment" },
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{ 0, NULL }
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};
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void pwc_item_append_cw(proto_item* item, const guint32 cw, const gboolean append_text)
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{
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if (item != NULL)
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{
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if (append_text)
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{
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proto_item_append_text(item, ", CW");
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}
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proto_item_append_text(item, ": 0x%.8" G_GINT32_MODIFIER "x", cw);
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}
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return;
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}
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void pwc_item_append_text_n_items(proto_item* item, const int n, const char * const item_text)
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{
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if (item != NULL)
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{
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if (n >=0)
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{
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proto_item_append_text(item, ", %d %s%s", n, item_text, plurality(n,"","s"));
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}
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}
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return;
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}
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static gint proto_pw_padding = -1;
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static gint ett = -1;
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static int hf_padding_len = -1;
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static
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int dissect_pw_padding(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* data _U_)
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{
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gint size;
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proto_item* item;
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proto_tree* tree_p;
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size = tvb_reported_length_remaining(tvb, 0);
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item = proto_tree_add_item(tree, proto_pw_padding, tvb, 0, -1, ENC_NA);
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pwc_item_append_text_n_items(item,size,"byte");
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tree_p = proto_item_add_subtree(item, ett);
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call_data_dissector(tvb, pinfo, tree_p);
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item = proto_tree_add_int(tree_p, hf_padding_len, tvb, 0, 0, size);
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PROTO_ITEM_SET_HIDDEN(item); /*allow filtering*/
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return tvb_captured_length(tvb);
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}
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void proto_register_pw_padding(void)
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{
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static hf_register_info hfpadding[] = {
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{&hf_padding_len ,{"Length" ,"pw.padding.len"
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,FT_INT32 ,BASE_DEC ,NULL ,0
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,NULL ,HFILL }}
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};
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static gint *ett_array[] = {
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&ett
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};
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proto_pw_padding = proto_register_protocol("Pseudowire Padding","PW Padding","pw.padding");
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proto_register_field_array(proto_pw_padding, hfpadding, array_length(hfpadding));
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proto_register_subtree_array(ett_array, array_length(ett_array));
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register_dissector("pw_padding", dissect_pw_padding, proto_pw_padding);
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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