forked from osmocom/wireshark
125 lines
2.8 KiB
C
125 lines
2.8 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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* 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 <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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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" PRIx32, 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_pw_common = -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_pw_common);
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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_pw_common
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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 - https://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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