diff options
Diffstat (limited to 'gtk2/dfilter_expr_dlg.c')
| -rw-r--r-- | gtk2/dfilter_expr_dlg.c | 1207 |
1 files changed, 1207 insertions, 0 deletions
diff --git a/gtk2/dfilter_expr_dlg.c b/gtk2/dfilter_expr_dlg.c new file mode 100644 index 0000000000..218c7319fa --- /dev/null +++ b/gtk2/dfilter_expr_dlg.c @@ -0,0 +1,1207 @@ +/* dfilter_expr_dlg.c + * + * Allow the user to construct a subexpression of a display filter + * expression, testing a particular field; display the tree of fields + * and the relations and values with which it can be compared. + * + * Copyright 2000, Jeffrey C. Foster <jfoste@woodward.com> and + * Guy Harris <guy@alum.mit.edu> + * + * $Id: dfilter_expr_dlg.c,v 1.1 2002/08/31 09:55:21 oabad Exp $ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * Copyright 2000 Gerald Combs + * + * 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. + */ + +/* Todo - + * may want to check the enable field to decide if protocol should be in tree + * improve speed of dialog box creation + * - I believe this is slow because of tree widget creation. + * 1) could improve the widget + * 2) keep a copy in memory after the first time. + * user can pop multiple tree dialogs by pressing the "Tree" button multiple + * time. not a good thing. + * Sort the protocols and children + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <gtk/gtk.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <ctype.h> + +#ifdef NEED_SNPRINTF_H +# include "snprintf.h" +#endif + +#include "globals.h" +#include "main.h" +#include "ui_util.h" +#include "simple_dialog.h" +#include "dlg_utils.h" +#include "proto_dlg.h" +#include "filter_prefs.h" +#include "dfilter_expr_dlg.h" + +#define E_DFILTER_EXPR_TREE_KEY "dfilter_expr_tree" +#define E_DFILTER_EXPR_CURRENT_VAR_KEY "dfilter_expr_current_var" +#define E_DFILTER_EXPR_RELATION_LABEL_KEY "dfilter_expr_relation_label" +#define E_DFILTER_EXPR_RELATION_LIST_KEY "dfilter_expr_relation_list" +#define E_DFILTER_EXPR_RANGE_LABEL_KEY "dfilter_expr_range_label" +#define E_DFILTER_EXPR_RANGE_ENTRY_KEY "dfilter_expr_range_entry" +#define E_DFILTER_EXPR_VALUE_LABEL_KEY "dfilter_expr_value_label" +#define E_DFILTER_EXPR_VALUE_ENTRY_KEY "dfilter_expr_value_entry" +#define E_DFILTER_EXPR_VALUE_LIST_KEY "dfilter_expr_value_list" +#define E_DFILTER_EXPR_VALUE_LIST_SW_KEY "dfilter_expr_value_list_sw" +#define E_DFILTER_EXPR_ACCEPT_BT_KEY "dfilter_expr_accept_bt" +#define E_DFILTER_EXPR_VALUE_KEY "dfilter_expr_value" + +typedef struct protocol_data { + char *abbrev; + int hfinfo_index; +} protocol_data_t; + +static void show_relations(GtkWidget *relation_label, GtkWidget *relation_list, + ftenum_t ftype); +static gboolean relation_is_presence_test(const char *string); +static void add_relation_list(GtkWidget *relation_list, char *relation); +static void build_boolean_values(GtkWidget *value_list_scrolled_win, + GtkWidget *value_list, const true_false_string *values); +static void build_enum_values(GtkWidget *value_list_scrolled_win, + GtkWidget *value_list, const value_string *values); +static void add_value_list_item(GtkWidget *value_list, gchar *string, + gpointer data); +static void display_value_fields(header_field_info *hfinfo, + gboolean is_comparison, GtkWidget *value_label, GtkWidget *value_entry, + GtkWidget *value_list, GtkWidget *value_list_scrolled_win, + GtkWidget *range_label, GtkWidget *range_entry); + +/* + * Note that this is called every time the user clicks on an item, + * whether it is already selected or not. + */ +static void +field_select_row_cb(GtkTreeSelection *sel, gpointer user_data) +{ + GtkWidget *window = gtk_widget_get_toplevel(user_data); + GtkWidget *relation_label = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RELATION_LABEL_KEY); + GtkWidget *relation_list = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RELATION_LIST_KEY); + GtkWidget *range_label = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RANGE_LABEL_KEY); + GtkWidget *range_entry = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RANGE_ENTRY_KEY); + GtkWidget *value_label = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_LABEL_KEY); + GtkWidget *value_entry = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_ENTRY_KEY); + GtkWidget *value_list = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_LIST_KEY); + GtkWidget *value_list_scrolled_win = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_LIST_SW_KEY); + GtkWidget *accept_bt = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_ACCEPT_BT_KEY); + header_field_info *hfinfo, *cur_hfinfo; + const char *value_type; + char value_label_string[1024+1]; /* XXX - should be large enough */ + GtkTreeModel *model; + GtkTreeIter iter; + + gtk_tree_selection_get_selected(sel, &model, &iter); + gtk_tree_model_get(model, &iter, 1, &hfinfo, -1); + + /* + * What was the item that was last selected? + */ + cur_hfinfo = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_CURRENT_VAR_KEY); + if (cur_hfinfo == hfinfo) { + /* + * It's still selected; no need to change anything. + */ + return; + } + + /* + * Mark it as currently selected. + */ + gtk_object_set_data(GTK_OBJECT(window), E_DFILTER_EXPR_CURRENT_VAR_KEY, + hfinfo); + + show_relations(relation_label, relation_list, hfinfo->type); + + /* + * Set the label for the value to indicate what type of value + * it is. + */ + value_type = ftype_pretty_name(hfinfo->type); + if (value_type != NULL) { + /* + * Indicate what type of value it is. + */ + snprintf(value_label_string, sizeof value_label_string, + "Value (%s)", value_type); + gtk_label_set_text(GTK_LABEL(value_label), value_label_string); + } + + /* + * Clear the entry widget for the value, as whatever + * was there before doesn't apply. + */ + gtk_entry_set_text(GTK_ENTRY(value_entry), ""); + + switch (hfinfo->type) { + + case FT_BOOLEAN: + /* + * The list of values should be the strings for "true" + * and "false"; show them in the value list. + */ + build_boolean_values(value_list_scrolled_win, value_list, + hfinfo->strings); + break; + + case FT_UINT8: + case FT_UINT16: + case FT_UINT24: + case FT_UINT32: + case FT_INT8: + case FT_INT16: + case FT_INT24: + case FT_INT32: + /* + * If this has a value_string table associated with it, + * fill up the list of values, otherwise clear the list + * of values. + */ + if (hfinfo->strings != NULL) { + build_enum_values(value_list_scrolled_win, value_list, + hfinfo->strings); + } else + gtk_list_clear_items(GTK_LIST(value_list), 0, -1); + break; + + default: + /* + * Clear the list of values. + */ + gtk_list_clear_items(GTK_LIST(value_list), 0, -1); + break; + } + + /* + * Display various items for the value, as appropriate. + * The relation we start out with is never a comparison. + */ + display_value_fields(hfinfo, FALSE, value_label, value_entry, + value_list, value_list_scrolled_win, range_label, range_entry); + + /* + * XXX - in browse mode, there always has to be something + * selected, so this should always be sensitive. + */ + gtk_widget_set_sensitive(accept_bt, TRUE); +} + +static void +show_relations(GtkWidget *relation_label, GtkWidget *relation_list, + ftenum_t ftype) +{ + /* + * Clear out the currently displayed list of relations. + */ + gtk_list_clear_items(GTK_LIST(relation_list), 0, -1); + + /* + * Add the supported relations. + */ + add_relation_list(relation_list, "is present"); + if (ftype_can_eq(ftype) || + (ftype_can_slice(ftype) && ftype_can_eq(FT_BYTES))) + add_relation_list(relation_list, "=="); + if (ftype_can_ne(ftype) || + (ftype_can_slice(ftype) && ftype_can_ne(FT_BYTES))) + add_relation_list(relation_list, "!="); + if (ftype_can_gt(ftype) || + (ftype_can_slice(ftype) && ftype_can_gt(FT_BYTES))) + add_relation_list(relation_list, ">"); + if (ftype_can_lt(ftype) || + (ftype_can_slice(ftype) && ftype_can_lt(FT_BYTES))) + add_relation_list(relation_list, "<"); + if (ftype_can_ge(ftype) || + (ftype_can_slice(ftype) && ftype_can_ge(FT_BYTES))) + add_relation_list(relation_list, ">="); + if (ftype_can_le(ftype) || + (ftype_can_slice(ftype) && ftype_can_le(FT_BYTES))) + add_relation_list(relation_list, "<="); + + /* + * And show the list. + */ + gtk_widget_show(relation_label); + gtk_widget_show(relation_list); +} + +/* + * Given a string that represents a test to be made on a field, returns + * TRUE if it tests for the field's presence, FALSE otherwise. + */ +static gboolean +relation_is_presence_test(const char *string) +{ + return (strcmp(string, "is present") == 0); +} + +static void +add_relation_list(GtkWidget *relation_list, char *relation) +{ + GtkWidget *label, *item; + + label = gtk_label_new(relation); + item = gtk_list_item_new(); + + gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5); + gtk_container_add(GTK_CONTAINER(item), label); + gtk_widget_show(label); + gtk_container_add(GTK_CONTAINER(relation_list), item); + gtk_widget_show(item); +} + +static void +relation_list_sel_cb(GtkList *relation_list, GtkWidget *child _U_, + gpointer user_data _U_) +{ + GtkWidget *window = gtk_widget_get_toplevel(GTK_WIDGET(relation_list)); + GtkWidget *range_label = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RANGE_LABEL_KEY); + GtkWidget *range_entry = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RANGE_ENTRY_KEY); + GtkWidget *value_label = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_LABEL_KEY); + GtkWidget *value_entry = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_ENTRY_KEY); + GtkWidget *value_list = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_LIST_KEY); + GtkWidget *value_list_scrolled_win = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_LIST_SW_KEY); + header_field_info *hfinfo = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_CURRENT_VAR_KEY); + GList *sl; + GtkWidget *item, *item_label; + gchar *item_str; + + /* + * What's the relation? + */ + sl = GTK_LIST(relation_list)->selection; + item = GTK_WIDGET(sl->data); + item_label = GTK_BIN(item)->child; + gtk_label_get(GTK_LABEL(item_label), &item_str); + + /* + * Update the display of various items for the value, as appropriate. + */ + display_value_fields(hfinfo, + !relation_is_presence_test(item_str), + value_label, value_entry, value_list, value_list_scrolled_win, + range_label, range_entry); +} + +static void +build_boolean_values(GtkWidget *value_list_scrolled_win, GtkWidget *value_list, + const true_false_string *values) +{ + static const true_false_string true_false = { "True", "False" }; + + /* + * Clear out the items for the list, and put in the names + * from the value_string list. + */ + gtk_list_clear_items(GTK_LIST(value_list), 0, -1); + + /* + * Put the list in single mode, so we don't get any selection + * events while we're building it (i.e., so we don't get any + * on a list item BEFORE WE GET TO SET THE DATA FOR THE LIST + * ITEM SO THAT THE HANDLER CAN HANDLE IT). + */ + gtk_list_set_selection_mode(GTK_LIST(value_list), GTK_SELECTION_SINGLE); + + /* + * Build the list. + */ + if (values == NULL) + values = &true_false; + add_value_list_item(value_list, values->true_string, (gpointer)values); + add_value_list_item(value_list, values->false_string, NULL); + + /* + * OK, we're done, so we can finally put it in browse mode. + * Select the first item, so that the user doesn't have to, under + * the assumption that they're most likely to test if something + * is true, not false. + */ + gtk_list_set_selection_mode(GTK_LIST(value_list), GTK_SELECTION_BROWSE); + gtk_list_select_item(GTK_LIST(value_list), 0); + + gtk_widget_show_all(value_list_scrolled_win); +} + +static void +build_enum_values(GtkWidget *value_list_scrolled_win _U_, GtkWidget *value_list, + const value_string *values) +{ + /* + * Clear out the items for the list, and put in the names + * from the value_string list. + */ + gtk_list_clear_items(GTK_LIST(value_list), 0, -1); + + /* + * Put the list in single mode, so we don't get any selection + * events while we're building it (i.e., so we don't get any + * on a list item BEFORE WE GET TO SET THE DATA FOR THE LIST + * ITEM SO THAT THE HANDLER CAN HANDLE IT). + */ + gtk_list_set_selection_mode(GTK_LIST(value_list), GTK_SELECTION_SINGLE); + + /* + * Build the list. + */ + while (values->strptr != NULL) { + add_value_list_item(value_list, values->strptr, + (gpointer)values); + values++; + } + + /* + * OK, we're done, so we can finally put it in browse mode. + */ + gtk_list_set_selection_mode(GTK_LIST(value_list), GTK_SELECTION_BROWSE); +} + +static void +add_value_list_item(GtkWidget *value_list, gchar *string, gpointer data) +{ + GtkWidget *label, *item; + + label = gtk_label_new(string); + item = gtk_list_item_new(); + + gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5); + gtk_container_add(GTK_CONTAINER(item), label); + gtk_widget_show(label); + gtk_container_add(GTK_CONTAINER(value_list), item); + gtk_object_set_data(GTK_OBJECT(item), E_DFILTER_EXPR_VALUE_KEY, data); + gtk_widget_show(item); +} + +/* + * Show or hide the various values fields as appropriate for the field + * and currently-selected relation. + */ +static void +display_value_fields(header_field_info *hfinfo, gboolean is_comparison, + GtkWidget *value_label, GtkWidget *value_entry, GtkWidget *value_list _U_, + GtkWidget *value_list_scrolled_win, GtkWidget *range_label, + GtkWidget *range_entry) +{ + gboolean show_value_label = FALSE; + + /* + * Either: + * + * this is an FT_NONE variable, in which case you can + * only check whether it's present or absent in the + * protocol tree + * + * or + * + * this is a Boolean variable, in which case you + * can't specify a value to compare with, you can + * only specify whether to test for the Boolean + * being true or to test for it being false + * + * or + * + * this isn't a Boolean variable, in which case you + * can test for its presence in the protocol tree, + * and the default relation is such a test, in + * which case you don't compare with a value + * + * so we hide the value entry. + */ + if (is_comparison) { + /* + * The relation is a comparison; display the entry for + * the value with which to compare. + */ + gtk_widget_show(value_entry); + + /* + * We're showing the entry; show the label as well. + */ + show_value_label = TRUE; + } else { + /* + * The relation isn't a comparison; there's no value with + * which to compare, so don't show the entry for it. + */ + gtk_widget_hide(value_entry); + } + + switch (hfinfo->type) { + + case FT_BOOLEAN: + if (is_comparison) { + /* + * The relation is a comparison, so we're showing + * an entry for the value with which to compare; + * show the list of names for values as well. + * (The list of values contains the strings for + * "true" and "false".) + */ + gtk_widget_show_all(value_list_scrolled_win); + + /* + * We're showing the value list; show the label as + * well. + */ + show_value_label = TRUE; + } else { + /* + * It's not a comparison, so we're not showing + * the entry for the value; don't show the + * list of names for values, either. + */ + gtk_widget_hide_all(value_list_scrolled_win); + } + break; + + case FT_UINT8: + case FT_UINT16: + case FT_UINT24: + case FT_UINT32: + case FT_INT8: + case FT_INT16: + case FT_INT24: + case FT_INT32: + if (hfinfo->strings != NULL) { + /* + * We have a list of values to show. + */ + if (is_comparison) { + /* + * The relation is a comparison, so we're + * showing an entry for the value with + * which to compare; show the list of + * names for values as well. + */ + gtk_widget_show_all(value_list_scrolled_win); + + /* + * We're showing the entry; show the label + * as well. + */ + show_value_label = TRUE; + } else { + /* + * It's not a comparison, so we're not showing + * the entry for the value; don't show the + * list of names for values, either. + */ + gtk_widget_hide_all(value_list_scrolled_win); + } + } else { + /* + * There is no list of names for values, so don't + * show it. + */ + gtk_widget_hide_all(value_list_scrolled_win); + } + break; + + default: + /* + * There is no list of names for values; hide the list. + */ + gtk_widget_hide_all(value_list_scrolled_win); + break; + } + + if (show_value_label) + gtk_widget_show(value_label); + else + gtk_widget_hide(value_label); + + /* + * Is this a comparison, and are ranges supported by this type? + * If both are true, show the range stuff, otherwise hide it. + */ + if (is_comparison && ftype_can_slice(hfinfo->type)) { + gtk_widget_show(range_label); + gtk_widget_show(range_entry); + } else { + gtk_widget_hide(range_label); + gtk_widget_hide(range_entry); + } +} + +static void +value_list_sel_cb(GtkList *value_list, GtkWidget *child, + gpointer value_entry_arg) +{ + GtkWidget *value_entry = value_entry_arg; + GtkWidget *window = gtk_widget_get_toplevel(GTK_WIDGET(value_list)); + header_field_info *hfinfo = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_CURRENT_VAR_KEY); + const value_string *value; + char value_string[11+1]; /* long enough for 32-bit octal value */ + + value = gtk_object_get_data(GTK_OBJECT(child), + E_DFILTER_EXPR_VALUE_KEY); + + /* + * This should either be a numeric type or a Boolean type. + */ + if (hfinfo->type == FT_BOOLEAN) { + /* + * Boolean type; if the value key for the selected item + * is non-null, it's the item for "true", otherwise it's + * the item for "false". Compare with 1 if we're + * testing for "true", and compare with 0 if we're + * testing for "false". + */ + if (value != NULL) + strcpy(value_string, "1"); + else + strcpy(value_string, "0"); + } else { + /* + * Numeric type; get the value corresponding to the + * selected item, and display it in the base for this + * field. + */ + switch (hfinfo->display) { + + case BASE_DEC: + case BASE_BIN: /* binary - treated as decimal, for now */ + switch (hfinfo->type) { + + case FT_UINT8: + case FT_UINT16: + case FT_UINT32: + snprintf(value_string, sizeof value_string, + "%u", value->value); + break; + + case FT_INT8: + case FT_INT16: + case FT_INT32: + snprintf(value_string, sizeof value_string, + "%d", value->value); + break; + + default: + g_assert_not_reached(); + } + break; + + case BASE_HEX: + snprintf(value_string, sizeof value_string, "0x%x", + value->value); + break; + + case BASE_OCT: + snprintf(value_string, sizeof value_string, "%#o", + value->value); + break; + + default: + g_assert_not_reached(); + } + } + gtk_entry_set_text(GTK_ENTRY(value_entry), value_string); +} + +static void +dfilter_report_bad_value(char *format, ...) +{ + char error_msg_buf[1024]; + va_list args; + + va_start(args, format); + vsnprintf(error_msg_buf, sizeof error_msg_buf, format, args); + va_end(args); + + simple_dialog(ESD_TYPE_CRIT | ESD_TYPE_MODAL, NULL, + "%s", error_msg_buf); +} + +static void +dfilter_expr_dlg_accept_cb(GtkWidget *w, gpointer filter_te_arg) +{ + GtkWidget *filter_te = filter_te_arg; + GtkWidget *window = gtk_widget_get_toplevel(w); + GtkWidget *relation_list = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RELATION_LIST_KEY); + GtkWidget *range_entry = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RANGE_ENTRY_KEY); + GtkWidget *value_entry = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_ENTRY_KEY); + header_field_info *hfinfo; + GList *sl; + GtkWidget *item, *item_label; + gchar *item_str; + gchar *range_str, *stripped_range_str; + gchar *value_str, *stripped_value_str; + int pos; + gchar *chars; + ftenum_t ftype; + gboolean can_compare; + fvalue_t *fvalue; + + /* + * Get the variable to be tested. + */ + hfinfo = gtk_object_get_data(GTK_OBJECT(window), + E_DFILTER_EXPR_CURRENT_VAR_KEY); + + /* + * Get the relation to use, if any. + */ + if (GTK_WIDGET_VISIBLE(relation_list)) { + /* + * The list of relations is visible, so we can get a + * relation operator from it. + */ + sl = GTK_LIST(relation_list)->selection; + item = GTK_WIDGET(sl->data); + item_label = GTK_BIN(item)->child; + gtk_label_get(GTK_LABEL(item_label), &item_str); + } else + item_str = NULL; /* no relation operator */ + + /* + * Get the range to use, if any. + */ + if (GTK_WIDGET_VISIBLE(range_entry)) { + range_str = g_strdup(gtk_entry_get_text(GTK_ENTRY(range_entry))); + stripped_range_str = g_strstrip(range_str); + if (strcmp(stripped_range_str, "") == 0) { + /* + * No range was specified. + */ + g_free(range_str); + range_str = NULL; + stripped_range_str = NULL; + } + + /* + * XXX - check it for validity? + */ + } else { + range_str = NULL; + stripped_range_str = NULL; + } + + /* + * If a range was specified, the type of the LHS of the + * comparison is FT_BYTES; otherwise, it's the type of the field. + */ + if (range_str == NULL) + ftype = hfinfo->type; + else + ftype = FT_BYTES; + + /* + * Make sure the relation is valid for the type in question. + * We may be offering relations that the type of the field + * can't support, because the field's type supports slicing, + * and the relation *is* supported on byte strings. + */ + if (strcmp(item_str, "==") == 0) + can_compare = ftype_can_eq(ftype); + else if (strcmp(item_str, "!=") == 0) + can_compare = ftype_can_ne(ftype); + else if (strcmp(item_str, ">") == 0) + can_compare = ftype_can_gt(ftype); + else if (strcmp(item_str, "<") == 0) + can_compare = ftype_can_lt(ftype); + else if (strcmp(item_str, ">=") == 0) + can_compare = ftype_can_ge(ftype); + else if (strcmp(item_str, "<=") == 0) + can_compare = ftype_can_le(ftype); + else + can_compare = TRUE; /* not a comparison */ + if (!can_compare) { + if (range_str == NULL) { + simple_dialog(ESD_TYPE_CRIT | ESD_TYPE_MODAL, NULL, + "That field cannot be tested with \"%s\".", + item_str); + } else { + simple_dialog(ESD_TYPE_CRIT | ESD_TYPE_MODAL, NULL, + "Ranges of that field cannot be tested with \"%s\".", + item_str); + } + if (range_str != NULL) + g_free(range_str); + return; + } + + /* + * Get the value to use, if any. + */ + if (GTK_WIDGET_VISIBLE(value_entry)) { + value_str = g_strdup(gtk_entry_get_text(GTK_ENTRY(value_entry))); + stripped_value_str = g_strstrip(value_str); + if (strcmp(stripped_value_str, "") == 0) { + /* + * This field takes a value, but they didn't supply + * one. + */ + simple_dialog(ESD_TYPE_CRIT | ESD_TYPE_MODAL, NULL, + "That field must be compared with a value, " + "but you didn't specify a value with which to " + "compare it."); + if (range_str != NULL) + g_free(range_str); + g_free(value_str); + return; + } + + /* + * Make sure the value is valid. + * + * If no range string was specified, it must be valid + * for the type of the field; if a range string was + * specified, must be valid for FT_BYTES. + */ + fvalue = fvalue_from_string(ftype, stripped_value_str, + dfilter_report_bad_value); + if (fvalue == NULL) { + /* + * It's not valid. + * + * The dialog box was already popped up by + * "dfilter_report_bad_value()". + */ + if (range_str != NULL) + g_free(range_str); + g_free(value_str); + return; + } + fvalue_free(fvalue); + } else { + value_str = NULL; + stripped_value_str = NULL; + } + + /* + * Insert the expression at the current cursor position. + * If there's a non-whitespace character to the left of it, + * insert a blank first; if there's a non-whitespace character + * to the right of it, insert a blank after it. + */ + pos = gtk_editable_get_position(GTK_EDITABLE(filter_te)); + chars = gtk_editable_get_chars(GTK_EDITABLE(filter_te), pos, pos + 1); + if (strcmp(chars, "") != 0 && !isspace((unsigned char)chars[0])) + gtk_editable_insert_text(GTK_EDITABLE(filter_te), " ", 1, &pos); + g_free(chars); + + gtk_editable_insert_text(GTK_EDITABLE(filter_te), hfinfo->abbrev, + strlen(hfinfo->abbrev), &pos); + if (range_str != NULL) { + gtk_editable_insert_text(GTK_EDITABLE(filter_te), "[", 1, &pos); + gtk_editable_insert_text(GTK_EDITABLE(filter_te), + stripped_range_str, strlen(stripped_range_str), &pos); + gtk_editable_insert_text(GTK_EDITABLE(filter_te), "]", 1, &pos); + g_free(range_str); + } + if (item_str != NULL && !relation_is_presence_test(item_str)) { + gtk_editable_insert_text(GTK_EDITABLE(filter_te), " ", 1, &pos); + gtk_editable_insert_text(GTK_EDITABLE(filter_te), item_str, + strlen(item_str), &pos); + } + if (value_str != NULL) { + gtk_editable_insert_text(GTK_EDITABLE(filter_te), " ", 1, &pos); + switch (hfinfo->type) { + + case FT_STRING: + case FT_STRINGZ: + case FT_UINT_STRING: + /* + * Put quotes around the string. + */ + gtk_editable_insert_text(GTK_EDITABLE(filter_te), "\"", + 1, &pos); + + default: + break; + } + gtk_editable_insert_text(GTK_EDITABLE(filter_te), + stripped_value_str, strlen(stripped_value_str), &pos); + switch (hfinfo->type) { + + case FT_STRING: + case FT_STRINGZ: + case FT_UINT_STRING: + /* + * Put quotes around the string. + */ + gtk_editable_insert_text(GTK_EDITABLE(filter_te), "\"", + 1, &pos); + + default: + break; + } + g_free(value_str); + } + chars = gtk_editable_get_chars(GTK_EDITABLE(filter_te), pos + 1, pos + 2); + if (strcmp(chars, "") != 0 && !isspace((unsigned char)chars[0])) + gtk_editable_insert_text(GTK_EDITABLE(filter_te), " ", 1, &pos); + g_free(chars); + + /* + * Put the cursor after the expression we just entered into + * the text entry widget. + */ + gtk_editable_set_position(GTK_EDITABLE(filter_te), pos); + + /* + * We're done; destroy the dialog box (which is the top-level + * widget for the "Accept" button). + */ + gtk_widget_destroy(window); +} + +static void +dfilter_expr_dlg_cancel_cb(GtkWidget *w _U_, gpointer parent_w) +{ + /* + * User pressed the cancel button; close the dialog box. + */ + gtk_widget_destroy(GTK_WIDGET(parent_w)); +} + +static void +dfilter_expr_dlg_destroy_cb(GtkWidget *w, gpointer filter_te) +{ + /* + * The dialog box is being destroyed; disconnect from the + * "destroy" signal on the text entry box to which we're + * attached, as the handler for that signal is supposed + * to destroy us, but we're already gone. + */ + g_signal_handlers_disconnect_by_func(GTK_OBJECT(filter_te), + dfilter_expr_dlg_cancel_cb, w); +} + +void +dfilter_expr_dlg_new(GtkWidget *filter_te) +{ + GtkWidget *window; + GtkWidget *main_vb; + GtkWidget *hb; + GtkWidget *col1_vb; + GtkWidget *tree_label, *tree, *tree_scrolled_win; + GtkWidget *col2_vb; + GtkWidget *relation_label, *relation_list; + GtkWidget *range_label, *range_entry; + GtkWidget *value_vb; + GtkWidget *value_label, *value_entry, *value_list_scrolled_win, *value_list; + GtkWidget *list_bb, *alignment, *accept_bt, *close_bt; + header_field_info *hfinfo; + int i, len; + GtkTreeStore *store; + GtkTreeSelection *selection; + GtkCellRenderer *renderer; + GtkTreeViewColumn *column; + GtkTreeIter iter; + gint col_offset; + + window = dlg_window_new("Ethereal: Filter Expression"); + gtk_container_set_border_width(GTK_CONTAINER(window), 5); + + main_vb = gtk_vbox_new(FALSE, 5); + gtk_container_border_width(GTK_CONTAINER(main_vb), 5); + gtk_container_add(GTK_CONTAINER(window), main_vb); + gtk_widget_show(main_vb); + + hb = gtk_hbox_new(FALSE, 5); + gtk_container_border_width(GTK_CONTAINER(hb), 5); + gtk_container_add(GTK_CONTAINER(main_vb), hb); + gtk_widget_show(hb); + + col1_vb = gtk_vbox_new(FALSE, 5); + gtk_container_border_width(GTK_CONTAINER(col1_vb), 5); + gtk_container_add(GTK_CONTAINER(hb), col1_vb); + gtk_widget_show(col1_vb); + + tree_label = gtk_label_new("Field name"); + gtk_misc_set_alignment(GTK_MISC(tree_label), 0.0, 0.0); + gtk_box_pack_start(GTK_BOX(col1_vb), tree_label, FALSE, FALSE, 0); + gtk_widget_show(tree_label); + + tree_scrolled_win = gtk_scrolled_window_new(NULL, NULL); + gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(tree_scrolled_win), + GTK_POLICY_AUTOMATIC, + GTK_POLICY_AUTOMATIC); + gtk_widget_set_size_request(tree_scrolled_win, 300, 400); + gtk_box_pack_start(GTK_BOX(col1_vb), tree_scrolled_win, FALSE, FALSE, 0); + gtk_widget_show(tree_scrolled_win); + + store = gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_POINTER); + tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(store)); + gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(tree), FALSE); + selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree)); + gtk_tree_selection_set_mode(selection, GTK_SELECTION_BROWSE); + renderer = gtk_cell_renderer_text_new(); + col_offset = gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(tree), + -1, "Name", renderer, + "text", 0, NULL); + column = gtk_tree_view_get_column(GTK_TREE_VIEW(tree), + col_offset - 1); + gtk_tree_view_column_set_sizing(GTK_TREE_VIEW_COLUMN(column), + GTK_TREE_VIEW_COLUMN_AUTOSIZE); + g_signal_connect(G_OBJECT(selection), "changed", + G_CALLBACK(field_select_row_cb), tree); + gtk_container_add(GTK_CONTAINER(tree_scrolled_win), tree); + + col2_vb = gtk_vbox_new(FALSE, 5); + gtk_container_border_width(GTK_CONTAINER(col2_vb), 5); + gtk_container_add(GTK_CONTAINER(hb), col2_vb); + gtk_widget_show(col2_vb); + + relation_label = gtk_label_new("Relation"); + gtk_misc_set_alignment(GTK_MISC(relation_label), 0.0, 0.0); + gtk_box_pack_start(GTK_BOX(col2_vb), relation_label, FALSE, FALSE, 0); + + relation_list = gtk_list_new(); + gtk_box_pack_start(GTK_BOX(col2_vb), relation_list, TRUE, TRUE, 0); + gtk_list_set_selection_mode(GTK_LIST(relation_list), + GTK_SELECTION_BROWSE); + + range_label = gtk_label_new("Range (offset:length)"); + gtk_misc_set_alignment(GTK_MISC(range_label), 0.0, 0.0); + gtk_box_pack_start(GTK_BOX(col2_vb), range_label, FALSE, FALSE, 0); + + range_entry = gtk_entry_new(); + gtk_box_pack_start(GTK_BOX(col2_vb), range_entry, FALSE, FALSE, 0); + + /* + * OK, show the relation label and range stuff as it would be + * with everything turned on, so it'll request as much space + * as it'll ever need, so the dialog box and widgets start out + * with the right sizes. + * + * XXX - this doesn't work. It *doesn't* request as much space + * as it'll ever need. + * + * XXX - FT_UINT8 doesn't support ranges, so even if it did work, + * it wouldn't work right. + * + * XXX - this no longer affects the range stuff, as that's + * controlled both by the type and by the relational operator + * selected. + */ + show_relations(relation_label, relation_list, FT_UINT8); + + value_vb = gtk_vbox_new(FALSE, 5); + gtk_container_border_width(GTK_CONTAINER(value_vb), 5); + gtk_container_add(GTK_CONTAINER(hb), value_vb); + gtk_widget_show(value_vb); + + value_label = gtk_label_new("Value"); + gtk_misc_set_alignment(GTK_MISC(value_label), 0.0, 0.0); + gtk_box_pack_start(GTK_BOX(value_vb), value_label, FALSE, FALSE, 0); + gtk_widget_show(value_label); + + value_entry = gtk_entry_new(); + gtk_box_pack_start(GTK_BOX(value_vb), value_entry, FALSE, FALSE, 0); + gtk_widget_show(value_entry); + + value_list_scrolled_win = gtk_scrolled_window_new(NULL, NULL); + gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(value_list_scrolled_win), + GTK_POLICY_AUTOMATIC, + GTK_POLICY_AUTOMATIC); + gtk_box_pack_start(GTK_BOX(value_vb), value_list_scrolled_win, TRUE, + TRUE, 0); + gtk_widget_show(value_list_scrolled_win); + + value_list = gtk_list_new(); + gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(value_list_scrolled_win), + value_list); + g_signal_connect(G_OBJECT(value_list), "select-child", + G_CALLBACK(value_list_sel_cb), value_entry); + gtk_list_set_selection_mode(GTK_LIST(value_list), GTK_SELECTION_SINGLE); + /* This remains hidden until an enumerated field is selected */ + + /* + * The value stuff may be hidden or shown depending on what + * relation was selected; connect to the "select-child" signal + * for the relation list, so we can make that happen. + */ + g_signal_connect(G_OBJECT(relation_list), "select-child", + G_CALLBACK(relation_list_sel_cb), NULL); + + /* + * Put the items in the CTree; we don't want to do that until + * we've constructed the value list and set the tree's + * E_DFILTER_EXPR_VALUE_LIST_KEY data to point to it, and + * constructed the "Accept" button and set the tree's + * E_DFILTER_EXPR_ACCEPT_BT_KEY data to point to it, so that + * when the list item is "helpfully" automatically selected for us + * we're ready to cope with the selection signal. + */ + + /* proto_array = g_array_new(FALSE, FALSE, sizeof(GtkTreeIter)); + for (i = proto_get_first_protocol(&cookie); i != -1; + i = proto_get_next_protocol(&cookie)) { + hfinfo = proto_registrar_get_nth(i); */ + /* Create a node for the protocol, and remember it for + later use. */ + /* name = proto_get_protocol_short_name(i); + gtk_tree_store_append(store, &iter, NULL); + gtk_tree_store_set(store, &iter, 0, name, 1, hfinfo, -1); + g_array_append_val(proto_array, iter); + } */ + + len = proto_registrar_n(); + for (i = 0; i < len; i++) { + GtkTreeIter child_iter; + + hfinfo = proto_registrar_get_nth(i); + + if (hfinfo->type == FT_PROTOCOL) + { + /* Create a node for the protocol */ + gtk_tree_store_append(store, &iter, NULL); + gtk_tree_store_set(store, &iter, 0, hfinfo->abbrev, 1, hfinfo, -1); + continue; + } + + /* + * If this field isn't at the head of the list of + * fields with this name, skip this field - all + * fields with the same name are really just versions + * of the same field stored in different bits, and + * should have the same type/radix/value list, and + * just differ in their bit masks. (If a field isn't + * a bitfield, but can be, say, 1 or 2 bytes long, + * it can just be made FT_UINT16, meaning the + * *maximum* length is 2 bytes, and be used + * for all lengths.) + */ + if (hfinfo->same_name_prev != NULL) + continue; + + /* Create a node for the item, and put it + under its parent protocol. */ + gtk_tree_store_append(store, &child_iter, &iter); + gtk_tree_store_set(store, &child_iter, 0, hfinfo->name, 1, hfinfo, -1); + } + g_object_unref(G_OBJECT(store)); + + /* g_array_free(proto_array, TRUE); */ + + gtk_widget_show_all(tree); + + list_bb = gtk_hbutton_box_new(); + gtk_button_box_set_layout(GTK_BUTTON_BOX(list_bb), GTK_BUTTONBOX_START); + gtk_button_box_set_spacing(GTK_BUTTON_BOX(list_bb), 5); + gtk_container_add(GTK_CONTAINER(main_vb), list_bb); + gtk_widget_show(list_bb); + + accept_bt = gtk_button_new_from_stock(GTK_STOCK_OK); + gtk_widget_set_sensitive(accept_bt, FALSE); + g_signal_connect(G_OBJECT(accept_bt), "clicked", + G_CALLBACK(dfilter_expr_dlg_accept_cb), filter_te); + GTK_WIDGET_SET_FLAGS(accept_bt, GTK_CAN_DEFAULT); + alignment = gtk_alignment_new(0.0, 0.5, 1.0, 0.0); + gtk_container_add(GTK_CONTAINER(alignment), accept_bt); + gtk_box_pack_start(GTK_BOX(list_bb), alignment, TRUE, TRUE, 0); + gtk_widget_grab_default(accept_bt); + gtk_widget_show(accept_bt); + gtk_widget_show(alignment); + + close_bt = gtk_button_new_from_stock(GTK_STOCK_CANCEL); + g_signal_connect(G_OBJECT(close_bt), "clicked", + G_CALLBACK(dfilter_expr_dlg_cancel_cb), window); + alignment = gtk_alignment_new(0.0, 0.5, 1.0, 0.0); + gtk_container_add(GTK_CONTAINER(alignment), close_bt); + gtk_box_pack_start(GTK_BOX(list_bb), alignment, TRUE, TRUE, 0); + gtk_widget_show(close_bt); + gtk_widget_show(alignment); + + /* Catch the "activate" signal on the range and value text entries, + so that if the user types Return there, we act as if the "Accept" + button had been selected, as happens if Return is typed if some + widget that *doesn't* handle the Return key has the input focus. */ + dlg_set_activate(range_entry, accept_bt); + dlg_set_activate(value_entry, accept_bt); + + /* + * Catch the "key_press_event" signal in the window, so that we can + * catch the ESC key being pressed and act as if the "Close" button + * had been selected. + */ + dlg_set_cancel(window, close_bt); + + gtk_object_set_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RELATION_LABEL_KEY, relation_label); + gtk_object_set_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RELATION_LIST_KEY, relation_list); + gtk_object_set_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RANGE_LABEL_KEY, range_label); + gtk_object_set_data(GTK_OBJECT(window), + E_DFILTER_EXPR_RANGE_ENTRY_KEY, range_entry); + gtk_object_set_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_LABEL_KEY, value_label); + gtk_object_set_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_ENTRY_KEY, value_entry); + gtk_object_set_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_LIST_KEY, value_list); + gtk_object_set_data(GTK_OBJECT(window), + E_DFILTER_EXPR_VALUE_LIST_SW_KEY, value_list_scrolled_win); + gtk_object_set_data(GTK_OBJECT(window), + E_DFILTER_EXPR_ACCEPT_BT_KEY, accept_bt); + + /* + * Catch the "destroy" signal on our top-level window, and, + * when it's destroyed, disconnect the signal we'll be + * connecting below. + */ + g_signal_connect(G_OBJECT(window), "destroy", + G_CALLBACK(dfilter_expr_dlg_destroy_cb), filter_te); + + /* + * Catch the "destroy" signal on the text entry widget to which + * we're attached; if it's destroyed, we should destroy ourselves + * as well. + */ + g_signal_connect(G_OBJECT(filter_te), "destroy", + G_CALLBACK(dfilter_expr_dlg_cancel_cb), window); + + gtk_widget_show(window); +} |