Adding upstream version 4.2.2.upstream/4.2.2

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

1 files changed, 312 insertions, 0 deletions

diff --git a/epan/dissectors/asn1/h450/packet-h450-template.c b/epan/dissectors/asn1/h450/packet-h450-template.c
new file mode 100644
index 00000000..b9a72714
--- /dev/null
+++ b/epan/dissectors/asn1/h450/packet-h450-template.c
@@ -0,0 +1,312 @@
+/* packet-h450.c
+ * Routines for h450 packet dissection
+ * Based on the previous h450 dissector by:
+ * 2003  Graeme Reid (graeme.reid@norwoodsystems.com)
+ * Copyright 2005, Anders Broman <anders.broman@ericsson.com>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Credit to Tomas Kukosa for developing the asn2wrs compiler.
+ *
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include <epan/expert.h>
+
+#include <epan/asn1.h>
+
+#include "packet-per.h"
+#include "packet-h225.h"
+
+#include "packet-h450-ros.h"
+
+#define PNAME  "H.450 Supplementary Services"
+#define PSNAME "H.450"
+#define PFNAME "h450"
+
+void proto_register_h450(void);
+void proto_reg_handoff_h450(void);
+
+static dissector_handle_t h450_arg_handle;
+static dissector_handle_t h450_res_handle;
+static dissector_handle_t h450_err_handle;
+
+/* Initialize the protocol and registered fields */
+static int proto_h450 = -1;
+static int hf_h450_operation = -1;
+static int hf_h450_error = -1;
+#include "packet-h450-hf.c"
+
+/* Initialize the subtree pointers */
+#include "packet-h450-ett.c"
+
+static expert_field ei_h450_unsupported_arg_type = EI_INIT;
+static expert_field ei_h450_unsupported_result_type = EI_INIT;
+static expert_field ei_h450_unsupported_error_type = EI_INIT;
+
+static const value_string h450_str_operation[] = {
+#include "packet-h450-table10.c"
+  {   0, NULL}
+};
+
+static const value_string h450_str_error[] = {
+#include "packet-h450-table20.c"
+  {   0, NULL}
+};
+
+/* ROSE context */
+static rose_ctx_t h450_rose_ctx;
+
+/* Global variables */
+
+#include "packet-h450-fn.c"
+
+typedef struct _h450_op_t {
+  gint32 opcode;
+  dissector_t arg_pdu;
+  dissector_t res_pdu;
+} h450_op_t;
+
+static const h450_op_t h450_op_tab[] = {
+#include "packet-h450-table11.c"
+};
+
+typedef struct _h450_err_t {
+  gint32 errcode;
+  dissector_t err_pdu;
+} h450_err_t;
+
+static const h450_err_t h450_err_tab[] = {
+#include "packet-h450-table21.c"
+};
+
+static const h450_op_t *get_op(gint32 opcode) {
+  int i;
+
+  /* search from the end to get the last occurrence if the operation is redefined in some newer specification */
+  for (i = array_length(h450_op_tab) - 1; i >= 0; i--)
+    if (h450_op_tab[i].opcode == opcode)
+      return &h450_op_tab[i];
+  return NULL;
+}
+
+static const h450_err_t *get_err(gint32 errcode) {
+  int i;
+
+  /* search from the end to get the last occurrence if the operation is redefined in some newer specification */
+  for (i = array_length(h450_err_tab) - 1; i >= 0; i--)
+    if (h450_err_tab[i].errcode == errcode)
+      return &h450_err_tab[i];
+  return NULL;
+}
+
+/*--- dissect_h450_arg ------------------------------------------------------*/
+static int
+dissect_h450_arg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) {
+  proto_item *hidden_item;
+  int offset = 0;
+  rose_ctx_t *rctx;
+  gint32 opcode;
+  const h450_op_t *op_ptr;
+  const gchar *p;
+
+  /* Reject the packet if data is NULL */
+  if (data == NULL)
+    return 0;
+  rctx = get_rose_ctx(data);
+  DISSECTOR_ASSERT(rctx);
+
+  if (rctx->d.pdu != 1)  /* invoke */
+    return offset;
+  if (rctx->d.code != 0)  /* local */
+    return offset;
+  opcode = rctx->d.code_local;
+  op_ptr = get_op(opcode);
+  if (!op_ptr)
+    return offset;
+
+  hidden_item = proto_tree_add_uint(tree, hf_h450_operation, tvb, 0, 0, opcode);
+  proto_item_set_hidden(hidden_item);
+  p = try_val_to_str(opcode, VALS(h450_str_operation));
+  if (p) {
+    proto_item_append_text(rctx->d.code_item, " - %s", p);
+    if (rctx->apdu_depth >= 0)
+      proto_item_append_text(proto_item_get_parent_nth(proto_tree_get_parent(tree), rctx->apdu_depth), " %s", p);
+  }
+
+  if (op_ptr->arg_pdu && (tvb_reported_length_remaining(tvb, offset) > 0))
+    offset = op_ptr->arg_pdu(tvb, pinfo, tree, NULL);
+  else
+    if (tvb_reported_length_remaining(tvb, offset) > 0) {
+      proto_tree_add_expert(tree, pinfo, &ei_h450_unsupported_arg_type, tvb, offset, -1);
+      offset += tvb_reported_length_remaining(tvb, offset);
+    }
+
+  return offset;
+}
+
+/*--- dissect_h450_res ------------------------------------------------------*/
+static int
+dissect_h450_res(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) {
+  proto_item *hidden_item;
+  int offset = 0;
+  rose_ctx_t *rctx;
+  gint32 opcode;
+  const h450_op_t *op_ptr;
+  const gchar *p;
+
+  /* Reject the packet if data is NULL */
+  if (data == NULL)
+    return 0;
+  rctx = get_rose_ctx(data);
+  DISSECTOR_ASSERT(rctx);
+
+  if (rctx->d.pdu != 2)  /* returnResult */
+    return offset;
+  if (rctx->d.code != 0)  /* local */
+    return offset;
+  opcode = rctx->d.code_local;
+  op_ptr = get_op(opcode);
+  if (!op_ptr)
+    return offset;
+
+  hidden_item = proto_tree_add_uint(tree, hf_h450_operation, tvb, 0, 0, opcode);
+  proto_item_set_hidden(hidden_item);
+  p = try_val_to_str(opcode, VALS(h450_str_operation));
+  if (p) {
+    proto_item_append_text(rctx->d.code_item, " - %s", p);
+    if (rctx->apdu_depth >= 0)
+      proto_item_append_text(proto_item_get_parent_nth(proto_tree_get_parent(tree), rctx->apdu_depth), " %s", p);
+  }
+
+  if (op_ptr->res_pdu && (tvb_reported_length_remaining(tvb, offset) > 0))
+    offset = op_ptr->res_pdu(tvb, pinfo, tree, NULL);
+  else
+    if (tvb_reported_length_remaining(tvb, offset) > 0) {
+      proto_tree_add_expert(tree, pinfo, &ei_h450_unsupported_result_type, tvb, offset, -1);
+      offset += tvb_reported_length_remaining(tvb, offset);
+    }
+
+  return offset;
+}
+
+/*--- dissect_h450_err ------------------------------------------------------*/
+static int
+dissect_h450_err(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) {
+  proto_item *hidden_item;
+  int offset = 0;
+  rose_ctx_t *rctx;
+  gint32 errcode;
+  const h450_err_t *err_ptr;
+  const gchar *p;
+
+  /* Reject the packet if data is NULL */
+  if (data == NULL)
+    return 0;
+  rctx = get_rose_ctx(data);
+  DISSECTOR_ASSERT(rctx);
+
+  if (rctx->d.pdu != 3)  /* returnError */
+    return offset;
+  if (rctx->d.code != 0)  /* local */
+    return offset;
+  errcode = rctx->d.code_local;
+  err_ptr = get_err(errcode);
+  if (!err_ptr)
+    return offset;
+
+  hidden_item = proto_tree_add_uint(tree, hf_h450_error, tvb, 0, 0, errcode);
+  proto_item_set_hidden(hidden_item);
+  p = try_val_to_str(errcode, VALS(h450_str_error));
+  if (p) {
+    proto_item_append_text(rctx->d.code_item, " - %s", p);
+    if (rctx->apdu_depth >= 0)
+      proto_item_append_text(proto_item_get_parent_nth(proto_tree_get_parent(tree), rctx->apdu_depth), " %s", p);
+  }
+
+  if (err_ptr->err_pdu && (tvb_reported_length_remaining(tvb, offset) > 0))
+    offset = err_ptr->err_pdu(tvb, pinfo, tree, NULL);
+  else
+    if (tvb_reported_length_remaining(tvb, offset) > 0) {
+      proto_tree_add_expert(tree, pinfo, &ei_h450_unsupported_error_type, tvb, offset, -1);
+      offset += tvb_reported_length_remaining(tvb, offset);
+    }
+
+  return offset;
+}
+
+/*--- proto_register_h450 -------------------------------------------*/
+void proto_register_h450(void) {
+
+  /* List of fields */
+  static hf_register_info hf[] = {
+    { &hf_h450_operation, { "Operation", "h450.operation",
+                           FT_UINT8, BASE_DEC, VALS(h450_str_operation), 0x0,
+                           NULL, HFILL }},
+    { &hf_h450_error,     { "Error", "h450.error",
+                           FT_UINT16, BASE_DEC, VALS(h450_str_error), 0x0,
+                           NULL, HFILL }},
+#include "packet-h450-hfarr.c"
+  };
+
+  /* List of subtrees */
+  static gint *ett[] = {
+#include "packet-h450-ettarr.c"
+  };
+
+  static ei_register_info ei[] = {
+    { &ei_h450_unsupported_arg_type, { "h450.unsupported.arg_type", PI_UNDECODED, PI_WARN, "UNSUPPORTED ARGUMENT TYPE (H.450)", EXPFILL }},
+    { &ei_h450_unsupported_result_type, { "h450.unsupported.result_type", PI_UNDECODED, PI_WARN, "UNSUPPORTED RESULT TYPE (H.450)", EXPFILL }},
+    { &ei_h450_unsupported_error_type, { "h450.unsupported.error_type", PI_UNDECODED, PI_WARN, "UNSUPPORTED ERROR TYPE (H.450)", EXPFILL }},
+  };
+
+  expert_module_t* expert_h450;
+
+  /* Register protocol */
+  proto_h450 = proto_register_protocol(PNAME, PSNAME, PFNAME);
+  register_dissector("h4501", dissect_h450_H4501SupplementaryService_PDU, proto_h450);
+  /* Register fields and subtrees */
+  proto_register_field_array(proto_h450, hf, array_length(hf));
+  proto_register_subtree_array(ett, array_length(ett));
+  expert_h450 = expert_register_protocol(proto_h450);
+  expert_register_field_array(expert_h450, ei, array_length(ei));
+
+  rose_ctx_init(&h450_rose_ctx);
+
+  /* Register dissectors */
+  h450_arg_handle = register_dissector("h4501_arg", dissect_h450_arg, proto_h450);
+  h450_res_handle = register_dissector("h4501_res", dissect_h450_res, proto_h450);
+  h450_err_handle = register_dissector("h4501_err", dissect_h450_err, proto_h450);
+
+  /* Register dissector tables */
+  h450_rose_ctx.arg_global_dissector_table = register_dissector_table("h450.ros.global.arg", "H.450 Operation Argument (global opcode)", proto_h450, FT_STRING, STRING_CASE_SENSITIVE);
+  h450_rose_ctx.res_global_dissector_table = register_dissector_table("h450.ros.global.res", "H.450 Operation Result (global opcode)", proto_h450, FT_STRING, STRING_CASE_SENSITIVE);
+  h450_rose_ctx.arg_local_dissector_table = register_dissector_table("h450.ros.local.arg", "H.450 Operation Argument (local opcode)", proto_h450, FT_UINT32, BASE_HEX);
+  h450_rose_ctx.res_local_dissector_table = register_dissector_table("h450.ros.local.res", "H.450 Operation Result (local opcode)", proto_h450, FT_UINT32, BASE_HEX);
+  h450_rose_ctx.err_global_dissector_table = register_dissector_table("h450.ros.global.err", "H.450 Error (global opcode)", proto_h450, FT_STRING, STRING_CASE_SENSITIVE);
+  h450_rose_ctx.err_local_dissector_table = register_dissector_table("h450.ros.local.err", "H.450 Error (local opcode)", proto_h450, FT_UINT32, BASE_HEX);
+
+}
+
+
+/*--- proto_reg_handoff_h450 ---------------------------------------*/
+void
+proto_reg_handoff_h450(void)
+{
+  int i;
+
+  for (i=0; i<(int)array_length(h450_op_tab); i++) {
+    dissector_add_uint("h450.ros.local.arg", h450_op_tab[i].opcode, h450_arg_handle);
+    dissector_add_uint("h450.ros.local.res", h450_op_tab[i].opcode, h450_res_handle);
+  }
+  for (i=0; i<(int)array_length(h450_err_tab); i++) {
+    dissector_add_uint("h450.ros.local.err", h450_err_tab[i].errcode, h450_err_handle);
+  }
+
+}