forked from osmocom/wireshark
770 lines
26 KiB
C
770 lines
26 KiB
C
/* decode_as_utils.c
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*
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* Routines to modify dissector tables on the fly.
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*
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* By David Hampton <dhampton@mac.com>
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* Copyright 2001 David Hampton
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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 <stdlib.h>
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#include <errno.h>
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#include "epan/decode_as.h"
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#include "epan/packet.h"
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#include "epan/prefs.h"
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#include "epan/prefs-int.h"
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#include "epan/dissectors/packet-dcerpc.h"
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#include "ui/decode_as_utils.h"
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#include "ui/simple_dialog.h"
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#include "wsutil/file_util.h"
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#include "wsutil/filesystem.h"
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#include "wsutil/cmdarg_err.h"
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#include "ws_version_info.h"
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/* XXX - We might want to switch this to a UAT */
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/*
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* A list of dissectors that need to be reset.
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*/
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static GSList *dissector_reset_list = NULL;
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/*
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* Data structure used as user data when iterating dissector handles
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*/
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typedef struct lookup_entry {
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gchar* dissector_short_name;
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dissector_handle_t handle;
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} lookup_entry_t;
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/*
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* Data structure for tracking which dissector need to be reset. This
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* structure is necessary as a hash table entry cannot be removed
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* while a g_hash_table_foreach walk is in progress.
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*/
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typedef struct dissector_delete_item {
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/* The name of the dissector table */
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gchar *ddi_table_name;
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/* The type of the selector in that dissector table */
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ftenum_t ddi_selector_type;
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/* The selector in the dissector table */
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union {
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guint sel_uint;
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char *sel_string;
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} ddi_selector;
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} dissector_delete_item_t;
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/*
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* A callback function to changed a dissector_handle if matched
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* This is used when iterating a dissector table
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*/
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static void
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change_dissector_if_matched(gpointer item, gpointer user_data)
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{
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dissector_handle_t handle = (dissector_handle_t)item;
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lookup_entry_t * lookup = (lookup_entry_t *)user_data;
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const gchar *proto_short_name = dissector_handle_get_short_name(handle);
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if (proto_short_name && strcmp(lookup->dissector_short_name, proto_short_name) == 0) {
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lookup->handle = handle;
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}
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}
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/*
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* A callback function to parse each "decode as" entry in the file and apply the change
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*/
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static prefs_set_pref_e
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read_set_decode_as_entries(gchar *key, const gchar *value,
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void *user_data _U_,
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gboolean return_range_errors _U_)
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{
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gchar *values[4] = {NULL, NULL, NULL, NULL};
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gchar delimiter[4] = {',', ',', ',','\0'};
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gchar *pch;
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guint i, j;
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dissector_table_t sub_dissectors;
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prefs_set_pref_e retval = PREFS_SET_OK;
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gboolean is_valid = FALSE;
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if (strcmp(key, DECODE_AS_ENTRY) == 0) {
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/* Parse csv into table, selector, initial, current */
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for (i = 0; i < 4; i++) {
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pch = strchr(value, delimiter[i]);
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if (pch == NULL) {
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for (j = 0; j < i; j++) {
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g_free(values[j]);
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}
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return PREFS_SET_SYNTAX_ERR;
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}
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values[i] = g_strndup(value, pch - value);
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value = pch + 1;
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}
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sub_dissectors = find_dissector_table(values[0]);
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if (sub_dissectors != NULL) {
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lookup_entry_t lookup;
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ftenum_t selector_type;
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lookup.dissector_short_name = values[3];
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lookup.handle = NULL;
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selector_type = dissector_table_get_type(sub_dissectors);
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g_slist_foreach(dissector_table_get_dissector_handles(sub_dissectors),
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change_dissector_if_matched, &lookup);
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if (lookup.handle != NULL || g_ascii_strcasecmp(values[3], DECODE_AS_NONE) == 0) {
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is_valid = TRUE;
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}
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if (is_valid) {
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if (IS_FT_STRING(selector_type)) {
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dissector_change_string(values[0], values[1], lookup.handle);
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} else {
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char *p;
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long long_value;
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long_value = strtol(values[1], &p, 0);
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if (p == values[0] || *p != '\0' || long_value < 0 ||
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(unsigned long)long_value > UINT_MAX) {
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retval = PREFS_SET_SYNTAX_ERR;
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is_valid = FALSE;
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} else
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dissector_change_uint(values[0], (guint)long_value, lookup.handle);
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}
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}
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if (is_valid) {
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decode_build_reset_list(values[0], selector_type, values[1], NULL, NULL);
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}
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} else {
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retval = PREFS_SET_SYNTAX_ERR;
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}
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} else {
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retval = PREFS_SET_NO_SUCH_PREF;
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}
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for (i = 0; i < 4; i++) {
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g_free(values[i]);
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}
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return retval;
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}
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void
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load_decode_as_entries(void)
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{
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char *daf_path;
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FILE *daf;
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if (dissector_reset_list) {
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decode_clear_all();
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}
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daf_path = get_persconffile_path(DECODE_AS_ENTRIES_FILE_NAME, TRUE);
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if ((daf = ws_fopen(daf_path, "r")) != NULL) {
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read_prefs_file(daf_path, daf, read_set_decode_as_entries, NULL);
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fclose(daf);
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}
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g_free(daf_path);
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}
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void
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decode_build_reset_list (const gchar *table_name, ftenum_t selector_type,
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gpointer key, gpointer value _U_,
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gpointer user_data _U_)
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{
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dissector_delete_item_t *item;
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item = g_new(dissector_delete_item_t,1);
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item->ddi_table_name = g_strdup(table_name);
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item->ddi_selector_type = selector_type;
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switch (selector_type) {
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case FT_UINT8:
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case FT_UINT16:
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case FT_UINT24:
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case FT_UINT32:
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item->ddi_selector.sel_uint = GPOINTER_TO_UINT(key);
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break;
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case FT_STRING:
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case FT_STRINGZ:
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case FT_UINT_STRING:
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case FT_STRINGZPAD:
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item->ddi_selector.sel_string = g_strdup((char *)key);
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break;
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default:
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g_assert_not_reached();
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}
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dissector_reset_list = g_slist_prepend(dissector_reset_list, item);
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}
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/* clear all settings */
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void
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decode_clear_all(void)
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{
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dissector_delete_item_t *item;
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GSList *tmp;
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dissector_all_tables_foreach_changed(decode_build_reset_list, NULL);
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for (tmp = dissector_reset_list; tmp; tmp = g_slist_next(tmp)) {
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item = (dissector_delete_item_t *)tmp->data;
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switch (item->ddi_selector_type) {
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case FT_UINT8:
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case FT_UINT16:
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case FT_UINT24:
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case FT_UINT32:
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dissector_reset_uint(item->ddi_table_name,
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item->ddi_selector.sel_uint);
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break;
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case FT_STRING:
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case FT_STRINGZ:
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case FT_UINT_STRING:
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case FT_STRINGZPAD:
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dissector_reset_string(item->ddi_table_name,
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item->ddi_selector.sel_string);
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g_free(item->ddi_selector.sel_string);
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break;
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default:
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g_assert_not_reached();
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}
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g_free(item->ddi_table_name);
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g_free(item);
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}
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g_slist_free(dissector_reset_list);
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dissector_reset_list = NULL;
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decode_dcerpc_reset_all();
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}
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static void
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decode_as_write_entry (const gchar *table_name, ftenum_t selector_type,
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gpointer key, gpointer value, gpointer user_data)
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{
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FILE *da_file = (FILE *)user_data;
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dissector_handle_t current, initial;
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const gchar *current_proto_name, *initial_proto_name;
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current = dtbl_entry_get_handle((dtbl_entry_t *)value);
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if (current == NULL)
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current_proto_name = DECODE_AS_NONE;
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else
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current_proto_name = dissector_handle_get_short_name(current);
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initial = dtbl_entry_get_initial_handle((dtbl_entry_t *)value);
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if (initial == NULL)
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initial_proto_name = DECODE_AS_NONE;
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else
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initial_proto_name = dissector_handle_get_short_name(initial);
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switch (selector_type) {
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case FT_UINT8:
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case FT_UINT16:
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case FT_UINT24:
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case FT_UINT32:
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/*
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* XXX - write these in decimal, regardless of the base of
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* the dissector table's selector, as older versions of
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* Wireshark used atoi() when reading this file, and
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* failed to handle hex or octal numbers.
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*
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* That will be fixed in future 1.10 and 1.12 releases,
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* but pre-1.10 releases are at end-of-life and won't
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* be fixed.
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*/
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fprintf (da_file,
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DECODE_AS_ENTRY ": %s,%u,%s,%s\n",
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table_name, GPOINTER_TO_UINT(key), initial_proto_name,
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current_proto_name);
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break;
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case FT_STRING:
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case FT_STRINGZ:
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case FT_UINT_STRING:
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case FT_STRINGZPAD:
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fprintf (da_file,
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DECODE_AS_ENTRY ": %s,%s,%s,%s\n",
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table_name, (gchar *)key, initial_proto_name,
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current_proto_name);
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break;
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default:
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g_assert_not_reached();
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break;
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}
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}
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int
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save_decode_as_entries(gchar** err)
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{
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char *pf_dir_path;
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char *daf_path;
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FILE *da_file;
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if (create_persconffile_dir(&pf_dir_path) == -1) {
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*err = g_strdup_printf("Can't create directory\n\"%s\"\nfor recent file: %s.",
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pf_dir_path, g_strerror(errno));
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g_free(pf_dir_path);
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return -1;
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}
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daf_path = get_persconffile_path(DECODE_AS_ENTRIES_FILE_NAME, TRUE);
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if ((da_file = ws_fopen(daf_path, "w")) == NULL) {
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*err = g_strdup_printf("Can't open decode_as_entries file\n\"%s\": %s.",
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daf_path, g_strerror(errno));
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g_free(daf_path);
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return -1;
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}
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fputs("# \"Decode As\" entries file for Wireshark " VERSION ".\n"
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"#\n"
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"# This file is regenerated each time \"Decode As\" preferences\n"
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"# are saved within Wireshark. Making manual changes should be safe,\n"
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"# however.\n", da_file);
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dissector_all_tables_foreach_changed(decode_as_write_entry, da_file);
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fclose(da_file);
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return 0;
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}
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static const char* prev_display_dissector_name = NULL;
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/*
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* For a dissector table, print on the stream described by output,
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* its short name (which is what's used in the "-d" option) and its
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* descriptive name.
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*/
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static void
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display_dissector_table_names(const char *table_name, const char *ui_name,
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gpointer output)
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{
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if ((prev_display_dissector_name == NULL) ||
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(strcmp(prev_display_dissector_name, table_name) != 0)) {
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fprintf((FILE *)output, "\t%s (%s)\n", table_name, ui_name);
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prev_display_dissector_name = table_name;
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}
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}
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/*
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* For a dissector handle, print on the stream described by output,
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* the filter name (which is what's used in the "-d" option) and the full
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* name for the protocol that corresponds to this handle.
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*/
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static void
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display_dissector_names(const gchar *table _U_, gpointer handle, gpointer output)
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{
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int proto_id;
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const gchar *proto_filter_name;
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const gchar *proto_ui_name;
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proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
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if (proto_id != -1) {
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proto_filter_name = proto_get_protocol_filter_name(proto_id);
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proto_ui_name = proto_get_protocol_name(proto_id);
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g_assert(proto_filter_name != NULL);
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g_assert(proto_ui_name != NULL);
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if ((prev_display_dissector_name == NULL) ||
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(strcmp(prev_display_dissector_name, proto_filter_name) != 0)) {
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fprintf((FILE *)output, "\t%s (%s)\n",
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proto_filter_name,
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proto_ui_name);
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prev_display_dissector_name = proto_filter_name;
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}
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}
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}
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/*
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* Allow dissector key names to be sorted alphabetically
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*/
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static gint
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compare_dissector_key_name(gconstpointer dissector_a, gconstpointer dissector_b)
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{
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return strcmp((const char*)dissector_a, (const char*)dissector_b);
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}
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/*
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* Print all layer type names supported.
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* We send the output to the stream described by the handle output.
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*/
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static void
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fprint_all_layer_types(FILE *output)
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{
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prev_display_dissector_name = NULL;
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dissector_all_tables_foreach_table(display_dissector_table_names, (gpointer)output, (GCompareFunc)compare_dissector_key_name);
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}
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/*
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* Print all protocol names supported for a specific layer type.
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* table_name contains the layer type name in which the search is performed.
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* We send the output to the stream described by the handle output.
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*/
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static void
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fprint_all_protocols_for_layer_types(FILE *output, gchar *table_name)
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{
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prev_display_dissector_name = NULL;
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dissector_table_foreach_handle(table_name,
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display_dissector_names,
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(gpointer)output);
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}
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/*
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* The protocol_name_search structure is used by find_protocol_name_func()
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* to pass parameters and store results
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*/
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struct protocol_name_search{
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gchar *searched_name; /* Protocol filter name we are looking for */
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dissector_handle_t matched_handle; /* Handle for a dissector whose protocol has the specified filter name */
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guint nb_match; /* How many dissectors matched searched_name */
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};
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typedef struct protocol_name_search *protocol_name_search_t;
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/*
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* This function parses all dissectors associated with a table to find the
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* one whose protocol has the specified filter name. It is called
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* as a reference function in a call to dissector_table_foreach_handle.
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* The name we are looking for, as well as the results, are stored in the
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* protocol_name_search struct pointed to by user_data.
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* If called using dissector_table_foreach_handle, we actually parse the
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* whole list of dissectors.
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*/
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static void
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find_protocol_name_func(const gchar *table _U_, gpointer handle, gpointer user_data)
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{
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int proto_id;
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const gchar *protocol_filter_name;
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protocol_name_search_t search_info;
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g_assert(handle);
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search_info = (protocol_name_search_t)user_data;
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proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
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if (proto_id != -1) {
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protocol_filter_name = proto_get_protocol_filter_name(proto_id);
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g_assert(protocol_filter_name != NULL);
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if (strcmp(protocol_filter_name, search_info->searched_name) == 0) {
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/* Found a match */
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if (search_info->nb_match == 0) {
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/* Record this handle only if this is the first match */
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search_info->matched_handle = (dissector_handle_t)handle; /* Record the handle for this matching dissector */
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}
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search_info->nb_match++;
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}
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}
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}
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/*
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* The function below parses the command-line parameters for the decode as
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* feature (a string pointer by cl_param).
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* It checks the format of the command-line, searches for a matching table
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* and dissector. If a table/dissector match is not found, we display a
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* summary of the available tables/dissectors (on stderr) and return FALSE.
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* If everything is fine, we get the "Decode as" preference activated,
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* then we return TRUE.
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*/
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gboolean decode_as_command_option(const gchar *cl_param)
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{
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gchar *table_name;
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guint32 selector, selector2;
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gchar *decoded_param;
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gchar *remaining_param;
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gchar *selector_str;
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gchar *dissector_str;
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dissector_handle_t dissector_matching;
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dissector_table_t table_matching;
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ftenum_t dissector_table_selector_type;
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struct protocol_name_search user_protocol_name;
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guint64 i;
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char op;
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/* The following code will allocate and copy the command-line options in a string pointed by decoded_param */
|
|
|
|
g_assert(cl_param);
|
|
decoded_param = g_strdup(cl_param);
|
|
g_assert(decoded_param);
|
|
|
|
|
|
/* The lines below will parse this string (modifying it) to extract all
|
|
necessary information. Note that decoded_param is still needed since
|
|
strings are not copied - we just save pointers. */
|
|
|
|
/* This section extracts a layer type (table_name) from decoded_param */
|
|
table_name = decoded_param; /* Layer type string starts from beginning */
|
|
|
|
remaining_param = strchr(table_name, '=');
|
|
if (remaining_param == NULL) {
|
|
cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, DECODE_AS_ARG_TEMPLATE);
|
|
/* If the argument does not follow the template, carry on anyway to check
|
|
if the table name is at least correct. If remaining_param is NULL,
|
|
we'll exit anyway further down */
|
|
}
|
|
else {
|
|
*remaining_param = '\0'; /* Terminate the layer type string (table_name) where '=' was detected */
|
|
}
|
|
|
|
/* Remove leading and trailing spaces from the table name */
|
|
while (table_name[0] == ' ')
|
|
table_name++;
|
|
while (table_name[strlen(table_name) - 1] == ' ')
|
|
table_name[strlen(table_name) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
|
|
|
|
/* The following part searches a table matching with the layer type specified */
|
|
table_matching = NULL;
|
|
|
|
/* Look for the requested table */
|
|
if (!(*(table_name))) { /* Is the table name empty, if so, don't even search for anything, display a message */
|
|
cmdarg_err("No layer type specified"); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
|
|
}
|
|
else {
|
|
table_matching = find_dissector_table(table_name);
|
|
if (!table_matching) {
|
|
cmdarg_err("Unknown layer type -- %s", table_name); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
|
|
}
|
|
}
|
|
|
|
if (!table_matching) {
|
|
/* Display a list of supported layer types to help the user, if the
|
|
specified layer type was not found */
|
|
cmdarg_err("Valid layer types are:");
|
|
fprint_all_layer_types(stderr);
|
|
}
|
|
if (remaining_param == NULL || !table_matching) {
|
|
/* Exit if the layer type was not found, or if no '=' separator was found
|
|
(see above) */
|
|
g_free(decoded_param);
|
|
return FALSE;
|
|
}
|
|
|
|
if (*(remaining_param + 1) != '=') { /* Check for "==" and not only '=' */
|
|
cmdarg_err("WARNING: -d requires \"==\" instead of \"=\". Option will be treated as \"%s==%s\"", table_name, remaining_param + 1);
|
|
}
|
|
else {
|
|
remaining_param++; /* Move to the second '=' */
|
|
*remaining_param = '\0'; /* Remove the second '=' */
|
|
}
|
|
remaining_param++; /* Position after the layer type string */
|
|
|
|
/* This section extracts a selector value (selector_str) from decoded_param */
|
|
|
|
selector_str = remaining_param; /* Next part starts with the selector number */
|
|
|
|
remaining_param = strchr(selector_str, ',');
|
|
if (remaining_param == NULL) {
|
|
cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, DECODE_AS_ARG_TEMPLATE);
|
|
/* If the argument does not follow the template, carry on anyway to check
|
|
if the selector value is at least correct. If remaining_param is NULL,
|
|
we'll exit anyway further down */
|
|
}
|
|
else {
|
|
*remaining_param = '\0'; /* Terminate the selector number string (selector_str) where ',' was detected */
|
|
}
|
|
|
|
dissector_table_selector_type = get_dissector_table_selector_type(table_name);
|
|
|
|
switch (dissector_table_selector_type) {
|
|
|
|
case FT_UINT8:
|
|
case FT_UINT16:
|
|
case FT_UINT24:
|
|
case FT_UINT32:
|
|
/* The selector for this table is an unsigned number. Parse it as such.
|
|
There's no need to remove leading and trailing spaces from the
|
|
selector number string, because sscanf will do that for us. */
|
|
switch (sscanf(selector_str, "%u%c%u", &selector, &op, &selector2)) {
|
|
case 1:
|
|
op = '\0';
|
|
break;
|
|
case 3:
|
|
if (op != ':' && op != '-') {
|
|
cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
|
|
g_free(decoded_param);
|
|
return FALSE;
|
|
}
|
|
if (op == ':') {
|
|
if ((selector2 == 0) || ((guint64)selector + selector2 - 1) > G_MAXUINT32) {
|
|
cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
|
|
g_free(decoded_param);
|
|
return FALSE;
|
|
}
|
|
}
|
|
else if (selector2 < selector) {
|
|
/* We could swap them for the user, but maybe it's better to call
|
|
* this out as an error in case it's not what was intended? */
|
|
cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
|
|
g_free(decoded_param);
|
|
return FALSE;
|
|
}
|
|
break;
|
|
default:
|
|
cmdarg_err("Invalid selector number \"%s\"", selector_str);
|
|
g_free(decoded_param);
|
|
return FALSE;
|
|
}
|
|
break;
|
|
|
|
case FT_STRING:
|
|
case FT_STRINGZ:
|
|
case FT_UINT_STRING:
|
|
case FT_STRINGZPAD:
|
|
/* The selector for this table is a string. */
|
|
break;
|
|
|
|
default:
|
|
/* There are currently no dissector tables with any types other
|
|
than the ones listed above. */
|
|
g_assert_not_reached();
|
|
}
|
|
|
|
if (remaining_param == NULL) {
|
|
/* Exit if no ',' separator was found (see above) */
|
|
cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
|
|
fprint_all_protocols_for_layer_types(stderr, table_name);
|
|
g_free(decoded_param);
|
|
return FALSE;
|
|
}
|
|
|
|
remaining_param++; /* Position after the selector number string */
|
|
|
|
/* This section extracts a protocol filter name (dissector_str) from decoded_param */
|
|
|
|
dissector_str = remaining_param; /* All the rest of the string is the dissector (decode as protocol) name */
|
|
|
|
/* Remove leading and trailing spaces from the dissector name */
|
|
while (dissector_str[0] == ' ')
|
|
dissector_str++;
|
|
while (dissector_str[strlen(dissector_str) - 1] == ' ')
|
|
dissector_str[strlen(dissector_str) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
|
|
|
|
dissector_matching = NULL;
|
|
|
|
/* We now have a pointer to the handle for the requested table inside the variable table_matching */
|
|
if (!(*dissector_str)) { /* Is the dissector name empty, if so, don't even search for a matching dissector and display all dissectors found for the selected table */
|
|
cmdarg_err("No protocol name specified"); /* Note, we don't exit here, but dissector_matching will remain NULL, so we exit below */
|
|
}
|
|
else {
|
|
user_protocol_name.nb_match = 0;
|
|
user_protocol_name.searched_name = dissector_str;
|
|
user_protocol_name.matched_handle = NULL;
|
|
|
|
dissector_table_foreach_handle(table_name, find_protocol_name_func, &user_protocol_name); /* Go and perform the search for this dissector in the this table's dissectors' names and shortnames */
|
|
|
|
if (user_protocol_name.nb_match != 0) {
|
|
dissector_matching = user_protocol_name.matched_handle;
|
|
if (user_protocol_name.nb_match > 1) {
|
|
cmdarg_err("WARNING: Protocol \"%s\" matched %u dissectors, first one will be used", dissector_str, user_protocol_name.nb_match);
|
|
}
|
|
}
|
|
else {
|
|
/* OK, check whether the problem is that there isn't any such
|
|
protocol, or that there is but it's not specified as a protocol
|
|
that's valid for that dissector table.
|
|
Note, we don't exit here, but dissector_matching will remain NULL,
|
|
so we exit below */
|
|
if (proto_get_id_by_filter_name(dissector_str) == -1) {
|
|
/* No such protocol */
|
|
cmdarg_err("Unknown protocol -- \"%s\"", dissector_str);
|
|
}
|
|
else {
|
|
cmdarg_err("Protocol \"%s\" isn't valid for layer type \"%s\"",
|
|
dissector_str, table_name);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!dissector_matching) {
|
|
cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
|
|
fprint_all_protocols_for_layer_types(stderr, table_name);
|
|
g_free(decoded_param);
|
|
return FALSE;
|
|
}
|
|
|
|
/* This is the end of the code that parses the command-line options.
|
|
All information is now stored in the variables:
|
|
table_name
|
|
selector
|
|
dissector_matching
|
|
The above variables that are strings are still pointing to areas within
|
|
decoded_parm. decoded_parm thus still needs to be kept allocated in
|
|
until we stop needing these variables
|
|
decoded_param will be deallocated at each exit point of this function */
|
|
|
|
|
|
/* We now have a pointer to the handle for the requested dissector
|
|
(requested protocol) inside the variable dissector_matching */
|
|
switch (dissector_table_selector_type) {
|
|
|
|
case FT_UINT8:
|
|
case FT_UINT16:
|
|
case FT_UINT24:
|
|
case FT_UINT32:
|
|
/* The selector for this table is an unsigned number. */
|
|
if (op == '\0') {
|
|
dissector_change_uint(table_name, selector, dissector_matching);
|
|
}
|
|
else if (op == ':') {
|
|
for (i = selector; i < (guint64)selector + selector2; i++) {
|
|
dissector_change_uint(table_name, (guint32)i, dissector_matching);
|
|
}
|
|
}
|
|
else { /* op == '-' */
|
|
for (i = selector; i <= selector2; i++) {
|
|
dissector_change_uint(table_name, (guint32)i, dissector_matching);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case FT_STRING:
|
|
case FT_STRINGZ:
|
|
case FT_UINT_STRING:
|
|
case FT_STRINGZPAD:
|
|
/* The selector for this table is a string. */
|
|
dissector_change_string(table_name, selector_str, dissector_matching);
|
|
break;
|
|
|
|
default:
|
|
/* There are currently no dissector tables with any types other
|
|
than the ones listed above. */
|
|
g_assert_not_reached();
|
|
}
|
|
g_free(decoded_param); /* "Decode As" rule has been successfully added */
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Editor modelines
|
|
*
|
|
* Local Variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* ex: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|