forked from osmocom/wireshark
216 lines
3.8 KiB
C
216 lines
3.8 KiB
C
/*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 2001 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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/* The ideas in this code came from Ed Warnicke's original implementation
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* of dranges for the old display filter code (Ethereal 0.8.15 and before).
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* The code is different, but definitely inspired by his code.
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*/
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#include "config.h"
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#include <glib.h>
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#include <epan/proto.h>
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#include "drange.h"
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#include "sttype-range.h"
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#include <wsutil/ws_assert.h>
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typedef struct {
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guint32 magic;
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stnode_t *entity;
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drange_t *drange;
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} range_t;
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#define RANGE_MAGIC 0xec0990ce
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static gpointer
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range_new(gpointer junk _U_)
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{
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range_t *range;
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ws_assert(junk == NULL);
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range = g_new(range_t, 1);
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range->magic = RANGE_MAGIC;
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range->entity = NULL;
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range->drange = NULL;
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return range;
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}
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static gpointer
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range_dup(gconstpointer data)
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{
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const range_t *org = data;
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range_t *range;
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range = range_new(NULL);
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range->entity = stnode_dup(org->entity);
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range->drange = drange_dup(org->drange);
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return range;
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}
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static void
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range_free(gpointer value)
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{
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range_t *range = value;
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ws_assert_magic(range, RANGE_MAGIC);
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if (range->drange)
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drange_free(range->drange);
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if (range->entity)
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stnode_free(range->entity);
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g_free(range);
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}
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static char *
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slice_tostr(const void *data, gboolean pretty)
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{
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const range_t *range = data;
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ws_assert_magic(range, RANGE_MAGIC);
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char *repr, *drange_str;
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drange_str = drange_tostr(range->drange);
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repr = ws_strdup_printf("%s[%s]",
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stnode_tostr(range->entity, pretty),
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drange_str);
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g_free(drange_str);
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return repr;
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}
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static char *
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layer_tostr(const void *data, gboolean pretty)
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{
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const range_t *range = data;
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ws_assert_magic(range, RANGE_MAGIC);
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char *repr, *drange_str;
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drange_str = drange_tostr(range->drange);
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repr = ws_strdup_printf("%s#[%s]",
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stnode_tostr(range->entity, pretty),
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drange_str);
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g_free(drange_str);
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return repr;
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}
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void
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sttype_range_remove_drange(stnode_t *node)
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{
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range_t *range;
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range = stnode_data(node);
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ws_assert_magic(range, RANGE_MAGIC);
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range->drange = NULL;
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}
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drange_t *
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sttype_range_drange_steal(stnode_t *node)
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{
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range_t *range;
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drange_t *dr;
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range = stnode_data(node);
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ws_assert_magic(range, RANGE_MAGIC);
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dr = range->drange;
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range->drange = NULL;
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return dr;
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}
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/* Set a range */
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void
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sttype_range_set(stnode_t *node, stnode_t *entity, GSList* drange_list)
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{
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range_t *range;
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range = stnode_data(node);
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ws_assert_magic(range, RANGE_MAGIC);
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range->entity = entity;
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range->drange = drange_new_from_list(drange_list);
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}
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void
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sttype_range_set1(stnode_t *node, stnode_t *entity, drange_node *rn)
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{
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sttype_range_set(node, entity, g_slist_append(NULL, rn));
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}
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char *
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sttype_range_set_number(stnode_t *node, stnode_t *entity, const char *number_str)
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{
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char *err_msg = NULL;
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drange_node *rn = drange_node_from_str(number_str, &err_msg);
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if (err_msg != NULL)
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return err_msg;
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sttype_range_set1(node, entity, rn);
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return NULL;
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}
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stnode_t *
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sttype_range_entity(stnode_t *node)
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{
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range_t *range = node->data;
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ws_assert_magic(range, RANGE_MAGIC);
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return range->entity;
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}
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drange_t *
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sttype_range_drange(stnode_t *node)
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{
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range_t *range = node->data;
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ws_assert_magic(range, RANGE_MAGIC);
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return range->drange;
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}
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void
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sttype_register_range(void)
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{
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static sttype_t slice_type = {
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STTYPE_SLICE,
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"SLICE",
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range_new,
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range_free,
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range_dup,
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slice_tostr
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};
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static sttype_t layer_type = {
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STTYPE_LAYER,
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"LAYER",
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range_new,
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range_free,
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range_dup,
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layer_tostr
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};
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sttype_register(&slice_type);
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sttype_register(&layer_type);
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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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