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-rw-r--r--epan/dissectors/asn1/dsp/packet-dsp-template.c352
1 files changed, 352 insertions, 0 deletions
diff --git a/epan/dissectors/asn1/dsp/packet-dsp-template.c b/epan/dissectors/asn1/dsp/packet-dsp-template.c
new file mode 100644
index 0000000000..c39870676d
--- /dev/null
+++ b/epan/dissectors/asn1/dsp/packet-dsp-template.c
@@ -0,0 +1,352 @@
+/* packet-dsp.c
+ * Routines for X.518 (X.500 Distributed Operations) 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-x509if.h"
+#include "packet-x509af.h"
+#include "packet-x509sat.h"
+
+#include "packet-dap.h"
+#include "packet-dsp.h"
+
+
+#define PNAME "X.519 Directory System Protocol"
+#define PSNAME "DSP"
+#define PFNAME "dsp"
+
+void proto_register_dsp(void);
+void proto_reg_handoff_dsp(void);
+
+static guint global_dsp_tcp_port = 102;
+static dissector_handle_t tpkt_handle;
+static void prefs_register_dsp(void); /* forward declaration for use in preferences registration */
+
+
+/* Initialize the protocol and registered fields */
+static int proto_dsp = -1;
+
+#include "packet-dsp-hf.c"
+
+/* Initialize the subtree pointers */
+static gint ett_dsp = -1;
+#include "packet-dsp-ett.c"
+
+static expert_field ei_dsp_unsupported_opcode = EI_INIT;
+static expert_field ei_dsp_unsupported_errcode = EI_INIT;
+static expert_field ei_dsp_unsupported_pdu = EI_INIT;
+static expert_field ei_dsp_zero_pdu = EI_INIT;
+
+#include "packet-dsp-fn.c"
+
+/*
+* Dissect X518 PDUs inside a ROS PDUs
+*/
+static int
+dissect_dsp(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 (*dsp_dissector)(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, asn1_ctx_t *actx, proto_tree *tree, int hf_index _U_) = NULL;
+ const char *dsp_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);
+
+ item = proto_tree_add_item(parent_tree, proto_dsp, tvb, 0, -1, ENC_NA);
+ tree = proto_item_add_subtree(item, ett_dsp);
+
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "DAP");
+ col_clear(pinfo->cinfo, COL_INFO);
+
+ asn1_ctx.private_data = session;
+
+ switch(session->ros_op & ROS_OP_MASK) {
+ case (ROS_OP_BIND | ROS_OP_ARGUMENT): /* BindInvoke */
+ dsp_dissector = dissect_dsp_DSASystemBindArgument;
+ dsp_op_name = "System-Bind-Argument";
+ break;
+ case (ROS_OP_BIND | ROS_OP_RESULT): /* BindResult */
+ dsp_dissector = dissect_dsp_DSASystemBindResult;
+ dsp_op_name = "System-Bind-Result";
+ break;
+ case (ROS_OP_BIND | ROS_OP_ERROR): /* BindError */
+ dsp_dissector = dissect_dsp_DSASystemBindError;
+ dsp_op_name = "System-Bind-Error";
+ break;
+ case (ROS_OP_INVOKE | ROS_OP_ARGUMENT): /* Invoke Argument */
+ switch(session->ros_op & ROS_OP_OPCODE_MASK) {
+ case 1: /* read */
+ dsp_dissector = dissect_dsp_ChainedReadArgument;
+ dsp_op_name = "Chained-Read-Argument";
+ break;
+ case 2: /* compare */
+ dsp_dissector = dissect_dsp_ChainedCompareArgument;
+ dsp_op_name = "Chained-Compare-Argument";
+ break;
+ case 3: /* abandon */
+ dsp_dissector = dissect_dsp_ChainedAbandonArgument;
+ dsp_op_name = "Chained-Abandon-Argument";
+ break;
+ case 4: /* list */
+ dsp_dissector = dissect_dsp_ChainedListArgument;
+ dsp_op_name = "Chained-List-Argument";
+ break;
+ case 5: /* search */
+ dsp_dissector = dissect_dsp_ChainedSearchArgument;
+ dsp_op_name = "Chained-Search-Argument";
+ break;
+ case 6: /* addEntry */
+ dsp_dissector = dissect_dsp_ChainedAddEntryArgument;
+ dsp_op_name = "Chained-Add-Entry-Argument";
+ break;
+ case 7: /* removeEntry */
+ dsp_dissector = dissect_dsp_ChainedRemoveEntryArgument;
+ dsp_op_name = "Chained-Remove-Entry-Argument";
+ break;
+ case 8: /* modifyEntry */
+ dsp_dissector = dissect_dsp_ChainedModifyEntryArgument;
+ dsp_op_name = "ChainedModify-Entry-Argument";
+ break;
+ case 9: /* modifyDN */
+ dsp_dissector = dissect_dsp_ChainedModifyDNArgument;
+ dsp_op_name = "ChainedModify-DN-Argument";
+ break;
+ default:
+ proto_tree_add_expert_format(tree, pinfo, &ei_dsp_unsupported_opcode, tvb, offset, -1,
+ "Unsupported DSP 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: /* read */
+ dsp_dissector = dissect_dsp_ChainedReadResult;
+ dsp_op_name = "Chained-Read-Result";
+ break;
+ case 2: /* compare */
+ dsp_dissector = dissect_dsp_ChainedCompareResult;
+ dsp_op_name = "Chained-Compare-Result";
+ break;
+ case 3: /* abandon */
+ dsp_dissector = dissect_dsp_ChainedAbandonResult;
+ dsp_op_name = "Chained-Abandon-Result";
+ break;
+ case 4: /* list */
+ dsp_dissector = dissect_dsp_ChainedListResult;
+ dsp_op_name = "Chained-List-Result";
+ break;
+ case 5: /* search */
+ dsp_dissector = dissect_dsp_ChainedSearchResult;
+ dsp_op_name = "Chained-Search-Result";
+ break;
+ case 6: /* addEntry */
+ dsp_dissector = dissect_dsp_ChainedAddEntryResult;
+ dsp_op_name = "Chained-Add-Entry-Result";
+ break;
+ case 7: /* removeEntry */
+ dsp_dissector = dissect_dsp_ChainedRemoveEntryResult;
+ dsp_op_name = "Chained-Remove-Entry-Result";
+ break;
+ case 8: /* modifyEntry */
+ dsp_dissector = dissect_dsp_ChainedModifyEntryResult;
+ dsp_op_name = "Chained-Modify-Entry-Result";
+ break;
+ case 9: /* modifyDN */
+ dsp_dissector = dissect_dsp_ChainedModifyDNResult;
+ dsp_op_name = "ChainedModify-DN-Result";
+ break;
+ default:
+ proto_tree_add_expert(tree, pinfo, &ei_dsp_unsupported_opcode, tvb, offset, -1);
+ break;
+ }
+ break;
+ case (ROS_OP_INVOKE | ROS_OP_ERROR): /* Return Error */
+ switch(session->ros_op & ROS_OP_OPCODE_MASK) {
+ case 1: /* attributeError */
+ dsp_dissector = dissect_dap_AttributeError;
+ dsp_op_name = "Attribute-Error";
+ break;
+ case 2: /* nameError */
+ dsp_dissector = dissect_dap_NameError;
+ dsp_op_name = "Name-Error";
+ break;
+ case 3: /* serviceError */
+ dsp_dissector = dissect_dap_ServiceError;
+ dsp_op_name = "Service-Error";
+ break;
+ case 4: /* referral */
+ dsp_dissector = dissect_dap_Referral;
+ dsp_op_name = "Referral";
+ break;
+ case 5: /* abandoned */
+ dsp_dissector = dissect_dap_Abandoned;
+ dsp_op_name = "Abandoned";
+ break;
+ case 6: /* securityError */
+ dsp_dissector = dissect_dap_SecurityError;
+ dsp_op_name = "Security-Error";
+ break;
+ case 7: /* abandonFailed */
+ dsp_dissector = dissect_dap_AbandonFailedError;
+ dsp_op_name = "Abandon-Failed-Error";
+ break;
+ case 8: /* updateError */
+ dsp_dissector = dissect_dap_UpdateError;
+ dsp_op_name = "Update-Error";
+ break;
+ case 9: /* DSAReferral */
+ dsp_dissector = dissect_dsp_DSAReferral;
+ dsp_op_name = "DSA-Referral";
+ break;
+ default:
+ proto_tree_add_expert(tree, pinfo, &ei_dsp_unsupported_errcode, tvb, offset, -1);
+ break;
+ }
+ break;
+ default:
+ proto_tree_add_expert(tree, pinfo, &ei_dsp_unsupported_pdu, tvb, offset, -1);
+ return tvb_captured_length(tvb);
+ }
+
+ if(dsp_dissector) {
+ col_set_str(pinfo->cinfo, COL_INFO, dsp_op_name);
+
+ while (tvb_reported_length_remaining(tvb, offset) > 0){
+ old_offset=offset;
+ offset=(*dsp_dissector)(FALSE, tvb, offset, &asn1_ctx, tree, -1);
+ if(offset == old_offset){
+ proto_tree_add_expert(tree, pinfo, &ei_dsp_zero_pdu, tvb, offset, -1);
+ break;
+ }
+ }
+ }
+
+ return tvb_captured_length(tvb);
+}
+
+
+/*--- proto_register_dsp -------------------------------------------*/
+void proto_register_dsp(void) {
+
+ /* List of fields */
+ static hf_register_info hf[] =
+ {
+#include "packet-dsp-hfarr.c"
+ };
+
+ /* List of subtrees */
+ static gint *ett[] = {
+ &ett_dsp,
+#include "packet-dsp-ettarr.c"
+ };
+ static ei_register_info ei[] = {
+ { &ei_dsp_unsupported_opcode, { "dsp.unsupported_opcode", PI_UNDECODED, PI_WARN, "Unsupported DSP opcode", EXPFILL }},
+ { &ei_dsp_unsupported_errcode, { "dsp.unsupported_errcode", PI_UNDECODED, PI_WARN, "Unsupported DSP errcode", EXPFILL }},
+ { &ei_dsp_unsupported_pdu, { "dsp.unsupported_pdu", PI_UNDECODED, PI_WARN, "Unsupported DSP PDU", EXPFILL }},
+ { &ei_dsp_zero_pdu, { "dsp.zero_pdu", PI_PROTOCOL, PI_ERROR, "Internal error, zero-byte DSP PDU", EXPFILL }},
+ };
+
+ module_t *dsp_module;
+ expert_module_t* expert_dsp;
+
+ /* Register protocol */
+ proto_dsp = proto_register_protocol(PNAME, PSNAME, PFNAME);
+
+ register_dissector("dsp", dissect_dsp, proto_dsp);
+
+ /* Register fields and subtrees */
+ proto_register_field_array(proto_dsp, hf, array_length(hf));
+ proto_register_subtree_array(ett, array_length(ett));
+ expert_dsp = expert_register_protocol(proto_dsp);
+ expert_register_field_array(expert_dsp, ei, array_length(ei));
+
+ /* Register our configuration options for DSP, particularly our port */
+
+ dsp_module = prefs_register_protocol_subtree("OSI/X.500", proto_dsp, prefs_register_dsp);
+
+ prefs_register_uint_preference(dsp_module, "tcp.port", "DSP TCP Port",
+ "Set the port for DSP operations (if other"
+ " than the default of 102)",
+ 10, &global_dsp_tcp_port);
+
+
+}
+
+
+/*--- proto_reg_handoff_dsp --- */
+void proto_reg_handoff_dsp(void) {
+ dissector_handle_t dsp_handle;
+
+#include "packet-dsp-dis-tab.c"
+
+ /* APPLICATION CONTEXT */
+
+ oid_add_from_string("id-ac-directory-system","2.5.3.2");
+
+ /* ABSTRACT SYNTAXES */
+
+ /* remember the tpkt handler for change in preferences */
+ tpkt_handle = find_dissector("tpkt");
+
+ /* Register DSP with ROS (with no use of RTSE) */
+ dsp_handle = find_dissector("dsp");
+ register_ros_oid_dissector_handle("2.5.9.2", dsp_handle, 0, "id-as-directory-system", FALSE);
+
+}
+
+static void
+prefs_register_dsp(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_dsp_tcp_port;
+
+ if((tcp_port > 0) && (tcp_port != 102) && tpkt_handle)
+ dissector_add_uint("tcp.port", global_dsp_tcp_port, tpkt_handle);
+
+}
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