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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:34:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:34:10 +0000
commite4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc (patch)
tree68cb5ef9081156392f1dd62a00c6ccc1451b93df /epan/rtd_table.c
parentInitial commit. (diff)
downloadwireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.tar.xz
wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.zip
Adding upstream version 4.2.2.upstream/4.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'epan/rtd_table.c')
-rw-r--r--epan/rtd_table.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/epan/rtd_table.c b/epan/rtd_table.c
new file mode 100644
index 00000000..738e66ed
--- /dev/null
+++ b/epan/rtd_table.c
@@ -0,0 +1,172 @@
+/* rtd_table.c
+ * Helper routines common to all RTD taps.
+ * Based on srt_table.c
+ *
+ * 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 <string.h>
+
+#include "proto.h"
+#include "packet_info.h"
+#include "rtd_table.h"
+
+struct register_rtd {
+ int proto_id; /* protocol id (0-indexed) */
+ const char* tap_listen_str; /* string used in register_tap_listener (NULL to use protocol name) */
+ tap_packet_cb rtd_func; /* function to be called for new incoming packets for RTD */
+ guint num_tables;
+ guint num_timestats;
+ const value_string* vs_type;
+ rtd_filter_check_cb filter_check;
+};
+
+int get_rtd_proto_id(register_rtd_t* rtd)
+{
+ if (!rtd) {
+ return -1;
+ }
+ return rtd->proto_id;
+}
+
+const char* get_rtd_tap_listener_name(register_rtd_t* rtd)
+{
+ return rtd->tap_listen_str;
+}
+
+tap_packet_cb get_rtd_packet_func(register_rtd_t* rtd)
+{
+ return rtd->rtd_func;
+}
+
+guint get_rtd_num_tables(register_rtd_t* rtd) {
+ return rtd->num_tables;
+}
+
+const value_string* get_rtd_value_string(register_rtd_t* rtd)
+{
+ return rtd->vs_type;
+}
+
+static wmem_tree_t *registered_rtd_tables = NULL;
+
+void
+register_rtd_table(const int proto_id, const char* tap_listener, guint num_tables, guint num_timestats, const value_string* vs_type,
+ tap_packet_cb rtd_packet_func, rtd_filter_check_cb filter_check_cb)
+{
+ register_rtd_t *table;
+ DISSECTOR_ASSERT(rtd_packet_func);
+
+ table = wmem_new(wmem_epan_scope(), register_rtd_t);
+
+ table->proto_id = proto_id;
+ if (tap_listener != NULL)
+ table->tap_listen_str = tap_listener;
+ else
+ table->tap_listen_str = proto_get_protocol_filter_name(proto_id);
+ table->rtd_func = rtd_packet_func;
+ table->num_tables = num_tables;
+ table->num_timestats = num_timestats;
+ table->vs_type = vs_type;
+ table->filter_check = filter_check_cb;
+
+ if (registered_rtd_tables == NULL)
+ registered_rtd_tables = wmem_tree_new(wmem_epan_scope());
+
+ wmem_tree_insert_string(registered_rtd_tables, proto_get_protocol_filter_name(proto_id), table, 0);
+}
+
+void free_rtd_table(rtd_stat_table* table)
+{
+ guint i;
+
+ for (i = 0; i < table->num_rtds; i++)
+ {
+ g_free(table->time_stats[i].rtd);
+ }
+ g_free(table->time_stats);
+ table->time_stats = NULL;
+ table->num_rtds = 0;
+}
+
+void reset_rtd_table(rtd_stat_table* table)
+{
+ guint i = 0;
+
+ for (i = 0; i < table->num_rtds; i++)
+ memset(table->time_stats[i].rtd, 0, sizeof(timestat_t)*table->time_stats[i].num_timestat);
+}
+
+register_rtd_t* get_rtd_table_by_name(const char* name)
+{
+ return (register_rtd_t*)wmem_tree_lookup_string(registered_rtd_tables, name, 0);
+}
+
+gchar* rtd_table_get_tap_string(register_rtd_t* rtd)
+{
+ GString *cmd_str = g_string_new(proto_get_protocol_filter_name(rtd->proto_id));
+ g_string_append(cmd_str, ",rtd");
+ return g_string_free(cmd_str, FALSE);
+}
+
+void rtd_table_get_filter(register_rtd_t* rtd, const char *opt_arg, const char **filter, char** err)
+{
+ gchar* cmd_str = rtd_table_get_tap_string(rtd);
+ guint len = (guint) strlen(cmd_str);
+ *filter=NULL;
+ *err=NULL;
+
+ if (!strncmp(opt_arg, cmd_str, len))
+ {
+ if (opt_arg[len] == ',')
+ {
+ *filter = opt_arg + len+1;
+ }
+ }
+
+ if (rtd->filter_check)
+ rtd->filter_check(opt_arg, filter, err);
+
+ g_free(cmd_str);
+}
+
+void rtd_table_dissector_init(register_rtd_t* rtd, rtd_stat_table* table, rtd_gui_init_cb gui_callback, void *callback_data)
+{
+ guint i;
+
+ table->num_rtds = rtd->num_tables;
+ table->time_stats = g_new0(rtd_timestat, rtd->num_tables);
+
+ for (i = 0; i < table->num_rtds; i++)
+ {
+ table->time_stats[i].num_timestat = rtd->num_timestats;
+ table->time_stats[i].rtd = g_new0(timestat_t, rtd->num_timestats);
+ }
+
+ if (gui_callback)
+ gui_callback(table, callback_data);
+}
+
+void rtd_table_iterate_tables(wmem_foreach_func func, gpointer user_data)
+{
+ wmem_tree_foreach(registered_rtd_tables, func, user_data);
+}
+
+/*
+ * 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:
+ */