Adding upstream version 4.2.2.upstream/4.2.2

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

1 files changed, 93 insertions, 0 deletions

diff --git a/file_packet_provider.c b/file_packet_provider.c
new file mode 100644
index 0000000..1b92eeb
--- /dev/null
+++ b/file_packet_provider.c
@@ -0,0 +1,93 @@
+/* file_packet_provider_data.c
+ * Routines for a packet_provider_data for packets from a file.
+ *
+ * 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 <glib.h>
+
+#include "cfile.h"
+
+static int
+frame_cmp(gconstpointer a, gconstpointer b, gpointer user_data _U_)
+{
+  const frame_data *fdata1 = (const frame_data *) a;
+  const frame_data *fdata2 = (const frame_data *) b;
+
+  return (fdata1->num < fdata2->num) ? -1 :
+    (fdata1->num > fdata2->num) ? 1 :
+    0;
+}
+
+const char *
+cap_file_provider_get_interface_name(struct packet_provider_data *prov, guint32 interface_id)
+{
+  wtapng_iface_descriptions_t *idb_info;
+  wtap_block_t wtapng_if_descr = NULL;
+  char* interface_name;
+
+  idb_info = wtap_file_get_idb_info(prov->wth);
+
+  if (interface_id < idb_info->interface_data->len)
+    wtapng_if_descr = g_array_index(idb_info->interface_data, wtap_block_t, interface_id);
+
+  g_free(idb_info);
+
+  if (wtapng_if_descr) {
+    if (wtap_block_get_string_option_value(wtapng_if_descr, OPT_IDB_NAME, &interface_name) == WTAP_OPTTYPE_SUCCESS)
+      return interface_name;
+    if (wtap_block_get_string_option_value(wtapng_if_descr, OPT_IDB_DESCRIPTION, &interface_name) == WTAP_OPTTYPE_SUCCESS)
+      return interface_name;
+    if (wtap_block_get_string_option_value(wtapng_if_descr, OPT_IDB_HARDWARE, &interface_name) == WTAP_OPTTYPE_SUCCESS)
+      return interface_name;
+  }
+  return "unknown";
+}
+
+const char *
+cap_file_provider_get_interface_description(struct packet_provider_data *prov, guint32 interface_id)
+{
+  wtapng_iface_descriptions_t *idb_info;
+  wtap_block_t wtapng_if_descr = NULL;
+  char* interface_name;
+
+  idb_info = wtap_file_get_idb_info(prov->wth);
+
+  if (interface_id < idb_info->interface_data->len)
+    wtapng_if_descr = g_array_index(idb_info->interface_data, wtap_block_t, interface_id);
+
+  g_free(idb_info);
+
+  if (wtapng_if_descr) {
+    if (wtap_block_get_string_option_value(wtapng_if_descr, OPT_IDB_DESCRIPTION, &interface_name) == WTAP_OPTTYPE_SUCCESS)
+      return interface_name;
+  }
+  return NULL;
+}
+
+wtap_block_t
+cap_file_provider_get_modified_block(struct packet_provider_data *prov, const frame_data *fd)
+{
+  if (prov->frames_modified_blocks)
+     return (wtap_block_t)g_tree_lookup(prov->frames_modified_blocks, fd);
+
+  /* ws_warning? */
+  return NULL;
+}
+
+void
+cap_file_provider_set_modified_block(struct packet_provider_data *prov, frame_data *fd, const wtap_block_t new_block)
+{
+  if (!prov->frames_modified_blocks)
+    prov->frames_modified_blocks = g_tree_new_full(frame_cmp, NULL, NULL, (GDestroyNotify)wtap_block_unref);
+
+  /* insert new packet block */
+  g_tree_replace(prov->frames_modified_blocks, fd, (gpointer)new_block);
+
+  fd->has_modified_block = TRUE;
+}