Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 317 insertions, 0 deletions

diff --git a/epan/stat_tap_ui.c b/epan/stat_tap_ui.c
new file mode 100644
index 0000000..69ad4ae
--- /dev/null
+++ b/epan/stat_tap_ui.c
@@ -0,0 +1,317 @@
+/* stat_tap_ui.c
+ * Routines to register UI information for stats
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+
+#include <string.h>
+
+#include <glib.h>
+
+#include <epan/stat_tap_ui.h>
+#include <wsutil/ws_assert.h>
+
+/* structure to keep track of what stats have registered command-line
+   arguments.
+ */
+typedef struct _stat_cmd_arg {
+    stat_tap_ui *ui;
+    const char *cmd;
+    void (*func)(const char *arg, void* userdata);
+    void* userdata;
+} stat_cmd_arg;
+
+static wmem_list_t *stat_cmd_arg_list=NULL;
+
+/* structure to keep track of what stats have been specified on the
+   command line.
+ */
+typedef struct {
+    stat_cmd_arg *sca;
+    char *arg;
+} stat_requested;
+static GSList *stats_requested = NULL;
+
+/* **********************************************************************
+ * Function called from stat to register the stat's command-line argument
+ * and initialization routine
+ * ********************************************************************** */
+static gint
+search_duplicate(gconstpointer a, gconstpointer b)
+{
+    return strcmp(((const stat_cmd_arg *)a)->cmd, (const char *)b);
+}
+
+static gint
+sort_by_name(gconstpointer a, gconstpointer b)
+{
+    return strcmp(((const stat_cmd_arg *)a)->cmd, ((const stat_cmd_arg *)b)->cmd);
+}
+
+void
+register_stat_tap_ui(stat_tap_ui *ui, void *userdata)
+{
+    stat_cmd_arg *newsca;
+
+    if (stat_cmd_arg_list == NULL)
+        stat_cmd_arg_list = wmem_list_new(wmem_epan_scope());
+
+    /* Key is already present */
+    if (wmem_list_find_custom(stat_cmd_arg_list, ui->cli_string, search_duplicate))
+        return;
+
+    newsca = wmem_new(wmem_epan_scope(), stat_cmd_arg);
+    newsca->cmd= wmem_strdup(wmem_epan_scope(), ui->cli_string);
+    newsca->func=ui->tap_init_cb;
+    newsca->userdata=userdata;
+
+    wmem_list_insert_sorted(stat_cmd_arg_list, newsca, sort_by_name);
+}
+
+/* **********************************************************************
+ * Function called for a stat command-line argument
+ * ********************************************************************** */
+gboolean
+process_stat_cmd_arg(const char *optstr)
+{
+    wmem_list_frame_t *entry;
+    stat_cmd_arg *sca;
+    stat_requested *tr;
+    char *stat_command = g_strdup(optstr);
+
+    /* Renamed in Wireshark 3.0, backwards compatibility. */
+    if (!strncmp(stat_command, "follow,ssl", strlen("follow,ssl"))) {
+        memcpy(stat_command + 7, "tls", 3);
+    }
+
+    /* The strings "ipx" or "ipv6" must be tested before "ip" to select the
+      right tap so the sorting does matter.  And it's also why the list is
+      walked backwards */
+    for (entry = wmem_list_tail(stat_cmd_arg_list); entry; entry = wmem_list_frame_prev(entry)) {
+        sca = (stat_cmd_arg*)wmem_list_frame_data(entry);
+        if (!strncmp(sca->cmd, stat_command, strlen(sca->cmd))) {
+            tr=g_new(stat_requested, 1);
+            tr->sca = sca;
+            tr->arg = stat_command;
+            stats_requested = g_slist_append(stats_requested, tr);
+            return TRUE;
+        }
+    }
+    g_free(stat_command);
+    return FALSE;
+}
+
+/* **********************************************************************
+ * Function to list all possible tap command-line arguments
+ * ********************************************************************** */
+static void
+list_stat_cmd_args_func(gpointer data, gpointer userdata _U_)
+{
+    fprintf(stderr,"     %s\n", ((stat_cmd_arg*)data)->cmd);
+}
+
+void
+list_stat_cmd_args(void)
+{
+    wmem_list_foreach(stat_cmd_arg_list, list_stat_cmd_args_func, NULL);
+}
+
+/* **********************************************************************
+ * Function to process stats requested with command-line arguments
+ * ********************************************************************** */
+void
+start_requested_stats(void)
+{
+    stat_requested *sr;
+
+    while(stats_requested){
+        sr=(stat_requested *)stats_requested->data;
+        (*sr->sca->func)(sr->arg,sr->sca->userdata);
+        stats_requested=g_slist_remove(stats_requested, sr);
+        g_free(sr->arg);
+        g_free(sr);
+    }
+}
+
+static wmem_tree_t *registered_stat_tables = NULL;
+
+void register_stat_tap_table_ui(stat_tap_table_ui *ui)
+{
+    if (registered_stat_tables == NULL)
+        registered_stat_tables = wmem_tree_new(wmem_epan_scope());
+
+    wmem_tree_insert_string(registered_stat_tables, ui->cli_string, ui, 0);
+}
+
+stat_tap_table_ui *stat_tap_by_name(const char *name)
+{
+    return (stat_tap_table_ui *) wmem_tree_lookup_string(registered_stat_tables, name, 0);
+}
+
+void stat_tap_iterate_tables(wmem_foreach_func func, gpointer user_data)
+{
+    wmem_tree_foreach(registered_stat_tables, func, user_data);
+}
+
+void stat_tap_get_filter(stat_tap_table_ui* new_stat, const char *opt_arg, const char **filter, char** err)
+{
+    guint len = (guint) strlen(new_stat->cli_string);
+    *filter=NULL;
+    *err=NULL;
+
+    if (!strncmp(opt_arg, new_stat->cli_string, len))
+    {
+        if (opt_arg[len] == ',')
+        {
+           *filter = opt_arg + len+1;
+        }
+    }
+
+    if (new_stat->stat_filter_check_cb)
+        new_stat->stat_filter_check_cb(opt_arg, filter, err);
+}
+
+stat_tap_table* stat_tap_init_table(const char *name, int num_fields, int num_elements,
+                const char *filter_string)
+{
+    stat_tap_table* new_table = g_new0(stat_tap_table, 1);
+
+    new_table->title = name;
+    new_table->num_elements = num_elements;
+    new_table->num_fields = num_fields;
+    new_table->filter_string = filter_string;
+    new_table->elements = g_new0(stat_tap_table_item_type*, num_elements);
+
+    return new_table;
+}
+
+stat_tap_table *stat_tap_find_table(stat_tap_table_ui *ui, const char *name)
+{
+    guint i = 0;
+    stat_tap_table *stat_table;
+
+    if (ui->tables == NULL)
+        return NULL;
+
+    for (i = 0; i < ui->tables->len; i++) {
+        stat_table = g_array_index(ui->tables, stat_tap_table *, i);
+        if (!g_strcmp0(stat_table->title, name)) {
+            return stat_table;
+        }
+    }
+
+    return NULL;
+}
+
+void stat_tap_add_table(stat_tap_table_ui* new_stat, stat_tap_table* table)
+{
+    if (new_stat->tables == NULL)
+        new_stat->tables = g_array_new(FALSE, TRUE, sizeof(stat_tap_table*));
+
+    g_array_insert_val(new_stat->tables, new_stat->tables->len, table);
+}
+
+void stat_tap_init_table_row(stat_tap_table *stat_table, guint table_index, guint num_fields, const stat_tap_table_item_type* fields)
+{
+    /* we have discovered a new procedure. Extend the table accordingly */
+    if(table_index>=stat_table->num_elements){
+        guint old_num_elements=stat_table->num_elements;
+        guint i;
+
+        stat_table->num_elements=table_index+1;
+        stat_table->elements = (stat_tap_table_item_type**)g_realloc(stat_table->elements, sizeof(stat_tap_table_item_type*)*(stat_table->num_elements));
+        for(i=old_num_elements;i<stat_table->num_elements;i++){
+            stat_table->elements[i] = g_new0(stat_tap_table_item_type, stat_table->num_fields);
+        }
+    }
+    memcpy(stat_table->elements[table_index], fields, num_fields*sizeof(stat_tap_table_item_type));
+
+}
+
+stat_tap_table_item_type* stat_tap_get_field_data(const stat_tap_table *stat_table, guint table_index, guint field_index)
+{
+    stat_tap_table_item_type* field_value;
+    ws_assert(table_index < stat_table->num_elements);
+
+    field_value = stat_table->elements[table_index];
+
+    ws_assert(field_index < stat_table->num_fields);
+
+    return &field_value[field_index];
+}
+
+void stat_tap_set_field_data(stat_tap_table *stat_table, guint table_index, guint field_index, stat_tap_table_item_type* field_data)
+{
+    stat_tap_table_item_type* field_value;
+    ws_assert(table_index < stat_table->num_elements);
+
+    field_value = stat_table->elements[table_index];
+
+    ws_assert(field_index < stat_table->num_fields);
+
+    field_value[field_index] = *field_data;
+}
+
+void reset_stat_table(stat_tap_table_ui* new_stat)
+{
+    guint i = 0;
+    stat_tap_table *stat_table;
+
+    for (i = 0; i < new_stat->tables->len; i++)
+    {
+        stat_table = g_array_index(new_stat->tables, stat_tap_table*, i);
+
+        if (new_stat->stat_tap_reset_table_cb)
+            new_stat->stat_tap_reset_table_cb(stat_table);
+    }
+}
+
+void free_stat_tables(stat_tap_table_ui* new_stat)
+{
+    guint i = 0, element, field_index;
+    stat_tap_table *stat_table;
+    stat_tap_table_item_type* field_data;
+
+    for (i = 0; i < new_stat->tables->len; i++)
+    {
+        stat_table = g_array_index(new_stat->tables, stat_tap_table*, i);
+
+        for (element = 0; element < stat_table->num_elements; element++)
+        {
+            for (field_index = 0; field_index < stat_table->num_fields; field_index++)
+            {
+                field_data = stat_tap_get_field_data(stat_table, element, field_index);
+                /* Give dissector a crack at it */
+                /* XXX Should this be per-row instead? */
+                if (new_stat->stat_tap_free_table_item_cb)
+                    new_stat->stat_tap_free_table_item_cb(stat_table, element, field_index, field_data);
+            }
+            g_free(stat_table->elements[element]);
+        }
+        g_free(stat_table->elements);
+        g_free(stat_table);
+    }
+    g_array_set_size(new_stat->tables, 0);
+}
+
+
+/*
+ * 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:
+ */