Move /asn1 to /epan/dissectors

Change-Id: I1208fe3c2ba428995526f561e8f792b8d871e9a9
Reviewed-on: https://code.wireshark.org/review/14388
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Reviewed-by: João Valverde <j@v6e.pt>

1 files changed, 290 insertions, 0 deletions

diff --git a/epan/dissectors/asn1/disp/packet-disp-template.c b/epan/dissectors/asn1/disp/packet-disp-template.c
new file mode 100644
index 0000000000..1250d38e89
--- /dev/null
+++ b/epan/dissectors/asn1/disp/packet-disp-template.c
@@ -0,0 +1,290 @@
+/* packet-disp.c
+ * Routines for X.525 (X.500 Directory Shadow Asbtract Service) and X.519 DISP packet dissection
+ * Graeme Lunt 2005
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include <epan/expert.h>
+#include <epan/prefs.h>
+#include <epan/oids.h>
+#include <epan/asn1.h>
+
+#include "packet-ber.h"
+#include "packet-acse.h"
+#include "packet-ros.h"
+#include "packet-rtse.h"
+
+#include "packet-x509if.h"
+#include "packet-x509af.h"
+#include "packet-x509sat.h"
+#include "packet-crmf.h"
+
+#include "packet-dop.h"
+#include "packet-dap.h"
+#include "packet-dsp.h"
+#include "packet-disp.h"
+
+
+/* we don't have a separate dissector for X519 -
+   and most of DISP is defined in X525 */
+#define PNAME  "X.519 Directory Information Shadowing Protocol"
+#define PSNAME "DISP"
+#define PFNAME "disp"
+
+void proto_register_disp(void);
+void proto_reg_handoff_disp(void);
+
+static guint global_disp_tcp_port = 102;
+static dissector_handle_t tpkt_handle;
+static void prefs_register_disp(void); /* forward declaration for use in preferences registration */
+
+
+/* Initialize the protocol and registered fields */
+static int proto_disp = -1;
+
+#include "packet-disp-hf.c"
+
+/* Initialize the subtree pointers */
+static gint ett_disp = -1;
+#include "packet-disp-ett.c"
+
+static expert_field ei_disp_unsupported_opcode = EI_INIT;
+static expert_field ei_disp_unsupported_errcode = EI_INIT;
+static expert_field ei_disp_unsupported_pdu = EI_INIT;
+static expert_field ei_disp_zero_pdu = EI_INIT;
+
+#include "packet-disp-fn.c"
+
+/*
+* Dissect DISP PDUs inside a ROS PDUs
+*/
+static int
+dissect_disp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data)
+{
+	int offset = 0;
+	int old_offset;
+	proto_item *item;
+	proto_tree *tree;
+	struct SESSION_DATA_STRUCTURE* session;
+	int (*disp_dissector)(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, asn1_ctx_t *actx, proto_tree *tree, int hf_index _U_) = NULL;
+	const char *disp_op_name;
+	asn1_ctx_t asn1_ctx;
+
+	/* do we have operation information from the ROS dissector */
+	if (data == NULL)
+		return 0;
+	session  = (struct SESSION_DATA_STRUCTURE*)data;
+
+	asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
+
+	asn1_ctx.private_data = session;
+
+	item = proto_tree_add_item(parent_tree, proto_disp, tvb, 0, -1, ENC_NA);
+	tree = proto_item_add_subtree(item, ett_disp);
+
+	col_set_str(pinfo->cinfo, COL_PROTOCOL, "DISP");
+  	col_clear(pinfo->cinfo, COL_INFO);
+
+	switch(session->ros_op & ROS_OP_MASK) {
+	case (ROS_OP_BIND | ROS_OP_ARGUMENT):	/*  BindInvoke */
+	  disp_dissector = dissect_disp_DSAShadowBindArgument;
+	  disp_op_name = "Shadow-Bind-Argument";
+	  break;
+	case (ROS_OP_BIND | ROS_OP_RESULT):	/*  BindResult */
+	  disp_dissector = dissect_disp_DSAShadowBindResult;
+	  disp_op_name = "Shadow-Bind-Result";
+	  break;
+	case (ROS_OP_BIND | ROS_OP_ERROR):	/*  BindError */
+	  disp_dissector = dissect_disp_DSAShadowBindError;
+	  disp_op_name = "Shadow-Bind-Error";
+	  break;
+	case (ROS_OP_INVOKE | ROS_OP_ARGUMENT):	/*  Invoke Argument */
+	  switch(session->ros_op & ROS_OP_OPCODE_MASK) {
+	  case 1: /* requestShadowUpdate */
+	    disp_dissector = dissect_disp_RequestShadowUpdateArgument;
+	    disp_op_name = "Request-Shadow-Update-Argument";
+	    break;
+	  case 2: /* updateShadow*/
+	    disp_dissector = dissect_disp_UpdateShadowArgument;
+	    disp_op_name = "Update-Shadow-Argument";
+	    break;
+	  case 3: /* coordinateShadowUpdate */
+	    disp_dissector = dissect_disp_CoordinateShadowUpdateArgument;
+	    disp_op_name = "Coordinate-Shadow-Update-Argument";
+	    break;
+	  default:
+	    proto_tree_add_expert_format(tree, pinfo, &ei_disp_unsupported_opcode, tvb, offset, -1,
+	        "Unsupported DISP opcode (%d)", session->ros_op & ROS_OP_OPCODE_MASK);
+	    break;
+	  }
+	  break;
+	case (ROS_OP_INVOKE | ROS_OP_RESULT):	/*  Return Result */
+	  switch(session->ros_op & ROS_OP_OPCODE_MASK) {
+	  case 1: /* requestShadowUpdate */
+	    disp_dissector = dissect_disp_RequestShadowUpdateResult;
+	    disp_op_name = "Request-Shadow-Result";
+	    break;
+	  case 2: /* updateShadow */
+	    disp_dissector = dissect_disp_UpdateShadowResult;
+	    disp_op_name = "Update-Shadow-Result";
+	    break;
+	  case 3: /* coordinateShadowUpdate */
+	    disp_dissector = dissect_disp_CoordinateShadowUpdateResult;
+	    disp_op_name = "Coordinate-Shadow-Update-Result";
+	    break;
+	  default:
+	    proto_tree_add_expert_format(tree, pinfo, &ei_disp_unsupported_opcode, tvb, offset, -1,
+	        "Unsupported DISP opcode (%d)", session->ros_op & ROS_OP_OPCODE_MASK);
+	    break;
+	  }
+	  break;
+	case (ROS_OP_INVOKE | ROS_OP_ERROR):	/*  Return Error */
+	  switch(session->ros_op & ROS_OP_OPCODE_MASK) {
+	  case 1: /* shadowError */
+	    disp_dissector = dissect_disp_ShadowError;
+	    disp_op_name = "Shadow-Error";
+	    break;
+	  default:
+	    proto_tree_add_expert_format(tree, pinfo, &ei_disp_unsupported_errcode, tvb, offset, -1,
+	            "Unsupported DISP errcode (%d)", session->ros_op & ROS_OP_OPCODE_MASK);
+	    break;
+	  }
+	  break;
+	default:
+	  proto_tree_add_expert(tree, pinfo, &ei_disp_unsupported_pdu, tvb, offset, -1);
+	  return tvb_captured_length(tvb);
+	}
+
+	if(disp_dissector) {
+	  col_set_str(pinfo->cinfo, COL_INFO, disp_op_name);
+
+	  while (tvb_reported_length_remaining(tvb, offset) > 0){
+	    old_offset=offset;
+	    offset=(*disp_dissector)(FALSE, tvb, offset, &asn1_ctx, tree, -1);
+	    if(offset == old_offset){
+	      proto_tree_add_expert(tree, pinfo, &ei_disp_zero_pdu, tvb, offset, -1);
+	      break;
+	    }
+	  }
+	}
+
+	return tvb_captured_length(tvb);
+}
+
+
+/*--- proto_register_disp -------------------------------------------*/
+void proto_register_disp(void) {
+
+  /* List of fields */
+  static hf_register_info hf[] =
+  {
+#include "packet-disp-hfarr.c"
+  };
+
+  /* List of subtrees */
+  static gint *ett[] = {
+    &ett_disp,
+#include "packet-disp-ettarr.c"
+  };
+
+  static ei_register_info ei[] = {
+    { &ei_disp_unsupported_opcode, { "disp.unsupported_opcode", PI_UNDECODED, PI_WARN, "Unsupported DISP opcode", EXPFILL }},
+    { &ei_disp_unsupported_errcode, { "disp.unsupported_errcode", PI_UNDECODED, PI_WARN, "Unsupported DISP errcode", EXPFILL }},
+    { &ei_disp_unsupported_pdu, { "disp.unsupported_pdu", PI_UNDECODED, PI_WARN, "Unsupported DISP PDU", EXPFILL }},
+    { &ei_disp_zero_pdu, { "disp.zero_pdu", PI_PROTOCOL, PI_ERROR, "Internal error, zero-byte DISP PDU", EXPFILL }},
+  };
+
+  module_t *disp_module;
+  expert_module_t* expert_disp;
+
+  /* Register protocol */
+  proto_disp = proto_register_protocol(PNAME, PSNAME, PFNAME);
+  register_dissector("disp", dissect_disp, proto_disp);
+
+  /* Register fields and subtrees */
+  proto_register_field_array(proto_disp, hf, array_length(hf));
+  proto_register_subtree_array(ett, array_length(ett));
+  expert_disp = expert_register_protocol(proto_disp);
+  expert_register_field_array(expert_disp, ei, array_length(ei));
+
+  /* Register our configuration options for DISP, particularly our port */
+
+  disp_module = prefs_register_protocol_subtree("OSI/X.500", proto_disp, prefs_register_disp);
+
+  prefs_register_uint_preference(disp_module, "tcp.port", "DISP TCP Port",
+				 "Set the port for DISP operations (if other"
+				 " than the default of 102)",
+				 10, &global_disp_tcp_port);
+
+}
+
+
+/*--- proto_reg_handoff_disp --- */
+void proto_reg_handoff_disp(void) {
+  dissector_handle_t disp_handle;
+
+  #include "packet-disp-dis-tab.c"
+
+  /* APPLICATION CONTEXT */
+
+  oid_add_from_string("id-ac-shadow-consumer-initiated","2.5.3.4");
+  oid_add_from_string("id-ac-shadow-supplier-initiated","2.5.3.5");
+  oid_add_from_string("id-ac-reliable-shadow-consumer-initiated","2.5.3.6");
+  oid_add_from_string("id-ac-reliable-shadow-supplier-initiated","2.5.3.7");
+
+  /* ABSTRACT SYNTAXES */
+
+  disp_handle = find_dissector("disp");
+
+  register_ros_oid_dissector_handle("2.5.9.3", disp_handle, 0, "id-as-directory-shadow", FALSE);
+  register_rtse_oid_dissector_handle("2.5.9.5", disp_handle, 0, "id-as-directory-reliable-shadow", FALSE);
+  register_rtse_oid_dissector_handle("2.5.9.6", disp_handle, 0, "id-as-directory-reliable-binding", FALSE);
+
+  /* OPERATIONAL BINDING */
+  oid_add_from_string("id-op-binding-shadow","2.5.1.0.5.1");
+
+  tpkt_handle = find_dissector("tpkt");
+
+  /* DNs */
+  x509if_register_fmt(hf_disp_contextPrefix, "cp=");
+
+}
+
+
+static void
+prefs_register_disp(void)
+{
+  static guint tcp_port = 0;
+
+  /* de-register the old port */
+  /* port 102 is registered by TPKT - don't undo this! */
+  if((tcp_port > 0) && (tcp_port != 102) && tpkt_handle)
+    dissector_delete_uint("tcp.port", tcp_port, tpkt_handle);
+
+  /* Set our port number for future use */
+  tcp_port = global_disp_tcp_port;
+
+  if((tcp_port > 0) && (tcp_port != 102) && tpkt_handle)
+    dissector_add_uint("tcp.port", global_disp_tcp_port, tpkt_handle);
+
+}