diff options
Diffstat (limited to 'epan/dissectors/asn1/dop/packet-dop-template.c')
| -rw-r--r-- | epan/dissectors/asn1/dop/packet-dop-template.c | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/epan/dissectors/asn1/dop/packet-dop-template.c b/epan/dissectors/asn1/dop/packet-dop-template.c new file mode 100644 index 0000000000..1cf698a20d --- /dev/null +++ b/epan/dissectors/asn1/dop/packet-dop-template.c @@ -0,0 +1,346 @@ +/* packet-dop.c + * Routines for X.501 (DSA Operational Attributes) 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/prefs.h> +#include <epan/oids.h> +#include <epan/asn1.h> +#include <epan/expert.h> + +#include "packet-ber.h" +#include "packet-acse.h" +#include "packet-ros.h" + +#include "packet-x509sat.h" +#include "packet-x509af.h" +#include "packet-x509if.h" +#include "packet-dap.h" +#include "packet-dsp.h" +#include "packet-crmf.h" + + +#include "packet-dop.h" + +#define PNAME "X.501 Directory Operational Binding Management Protocol" +#define PSNAME "DOP" +#define PFNAME "dop" + +void proto_register_dop(void); +void proto_reg_handoff_dop(void); + +static guint global_dop_tcp_port = 102; +static dissector_handle_t tpkt_handle; +static void prefs_register_dop(void); /* forward declaration for use in preferences registration */ + +/* Initialize the protocol and registered fields */ +static int proto_dop = -1; + +static const char *binding_type = NULL; /* binding_type */ + +static int call_dop_oid_callback(const char *base_string, tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, const char *col_info, void* data); + +#include "packet-dop-hf.c" + +/* Initialize the subtree pointers */ +static gint ett_dop = -1; +static gint ett_dop_unknown = -1; +#include "packet-dop-ett.c" + +static expert_field ei_dop_unknown_binding_parameter = EI_INIT; +static expert_field ei_dop_unsupported_opcode = EI_INIT; +static expert_field ei_dop_unsupported_errcode = EI_INIT; +static expert_field ei_dop_unsupported_pdu = EI_INIT; +static expert_field ei_dop_zero_pdu = EI_INIT; + +/* Dissector table */ +static dissector_table_t dop_dissector_table; + +static void append_oid(packet_info *pinfo, const char *oid) +{ + const char *name = NULL; + + name = oid_resolved_from_string(wmem_packet_scope(), oid); + col_append_fstr(pinfo->cinfo, COL_INFO, " %s", name ? name : oid); +} + +#include "packet-dop-fn.c" + +static int +call_dop_oid_callback(const char *base_string, tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, const char *col_info, void* data) +{ + char* binding_param; + + binding_param = wmem_strdup_printf(wmem_packet_scope(), "%s.%s", base_string, binding_type ? binding_type : ""); + + col_append_fstr(pinfo->cinfo, COL_INFO, " %s", col_info); + + if (dissector_try_string(dop_dissector_table, binding_param, tvb, pinfo, tree, data)) { + offset = tvb_reported_length (tvb); + } else { + proto_item *item; + proto_tree *next_tree; + + next_tree = proto_tree_add_subtree_format(tree, tvb, 0, -1, ett_dop_unknown, &item, + "Dissector for parameter %s OID:%s not implemented. Contact Wireshark developers if you want this supported", base_string, binding_type ? binding_type : "<empty>"); + + offset = dissect_unknown_ber(pinfo, tvb, offset, next_tree); + expert_add_info(pinfo, item, &ei_dop_unknown_binding_parameter); + } + + return offset; +} + + +/* +* Dissect DOP PDUs inside a ROS PDUs +*/ +static int +dissect_dop(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 (*dop_dissector)(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, asn1_ctx_t *actx, proto_tree *tree, int hf_index _U_) = NULL; + const char *dop_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_dop, tvb, 0, -1, ENC_NA); + tree = proto_item_add_subtree(item, ett_dop); + + col_set_str(pinfo->cinfo, COL_PROTOCOL, "DOP"); + 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 */ + dop_dissector = dissect_dop_DSAOperationalManagementBindArgument; + dop_op_name = "DSA-Operational-Bind-Argument"; + break; + case (ROS_OP_BIND | ROS_OP_RESULT): /* BindResult */ + dop_dissector = dissect_dop_DSAOperationalManagementBindResult; + dop_op_name = "DSA-Operational-Bind-Result"; + break; + case (ROS_OP_BIND | ROS_OP_ERROR): /* BindError */ + dop_dissector = dissect_dop_DSAOperationalManagementBindError; + dop_op_name = "DSA-Operational-Management-Bind-Error"; + break; + case (ROS_OP_INVOKE | ROS_OP_ARGUMENT): /* Invoke Argument */ + switch(session->ros_op & ROS_OP_OPCODE_MASK) { + case 100: /* establish */ + dop_dissector = dissect_dop_EstablishOperationalBindingArgument; + dop_op_name = "Establish-Operational-Binding-Argument"; + break; + case 101: /* terminate */ + dop_dissector = dissect_dop_TerminateOperationalBindingArgument; + dop_op_name = "Terminate-Operational-Binding-Argument"; + break; + case 102: /* modify */ + dop_dissector = dissect_dop_ModifyOperationalBindingArgument; + dop_op_name = "Modify-Operational-Binding-Argument"; + break; + default: + proto_tree_add_expert_format(tree, pinfo, &ei_dop_unsupported_opcode, tvb, offset, -1, + "Unsupported DOP Argument 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 100: /* establish */ + dop_dissector = dissect_dop_EstablishOperationalBindingResult; + dop_op_name = "Establish-Operational-Binding-Result"; + break; + case 101: /* terminate */ + dop_dissector = dissect_dop_TerminateOperationalBindingResult; + dop_op_name = "Terminate-Operational-Binding-Result"; + break; + case 102: /* modify */ + dop_dissector = dissect_dop_ModifyOperationalBindingResult; + dop_op_name = "Modify-Operational-Binding-Result"; + break; + default: + proto_tree_add_expert_format(tree, pinfo, &ei_dop_unsupported_opcode, tvb, offset, -1, + "Unsupported DOP Result 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 100: /* operational-binding */ + dop_dissector = dissect_dop_OpBindingErrorParam; + dop_op_name = "Operational-Binding-Error"; + break; + default: + proto_tree_add_expert_format(tree, pinfo, &ei_dop_unsupported_errcode, tvb, offset, -1, + "Unsupported DOP Error opcode (%d)", session->ros_op & ROS_OP_OPCODE_MASK); + break; + } + break; + default: + proto_tree_add_expert(tree, pinfo, &ei_dop_unsupported_pdu, tvb, offset, -1); + return tvb_captured_length(tvb); + } + + if(dop_dissector) { + col_set_str(pinfo->cinfo, COL_INFO, dop_op_name); + + while (tvb_reported_length_remaining(tvb, offset) > 0){ + old_offset=offset; + offset=(*dop_dissector)(FALSE, tvb, offset, &asn1_ctx, tree, -1); + if(offset == old_offset){ + proto_tree_add_expert(tree, pinfo, &ei_dop_zero_pdu, tvb, offset, -1); + break; + } + } + } + + return tvb_captured_length(tvb); +} + + + +/*--- proto_register_dop -------------------------------------------*/ +void proto_register_dop(void) { + + /* List of fields */ + static hf_register_info hf[] = + { +#include "packet-dop-hfarr.c" + }; + + /* List of subtrees */ + static gint *ett[] = { + &ett_dop, + &ett_dop_unknown, +#include "packet-dop-ettarr.c" + }; + + static ei_register_info ei[] = { + { &ei_dop_unknown_binding_parameter, { "dop.unknown_binding_parameter", PI_UNDECODED, PI_WARN, "Unknown binding-parameter", EXPFILL }}, + { &ei_dop_unsupported_opcode, { "dop.unsupported_opcode", PI_UNDECODED, PI_WARN, "Unsupported DOP opcode", EXPFILL }}, + { &ei_dop_unsupported_errcode, { "dop.unsupported_errcode", PI_UNDECODED, PI_WARN, "Unsupported DOP errcode", EXPFILL }}, + { &ei_dop_unsupported_pdu, { "dop.unsupported_pdu", PI_UNDECODED, PI_WARN, "Unsupported DOP PDU", EXPFILL }}, + { &ei_dop_zero_pdu, { "dop.zero_pdu", PI_PROTOCOL, PI_ERROR, "Internal error, zero-byte DOP PDU", EXPFILL }}, + }; + + expert_module_t* expert_dop; + module_t *dop_module; + + /* Register protocol */ + proto_dop = proto_register_protocol(PNAME, PSNAME, PFNAME); + + register_dissector("dop", dissect_dop, proto_dop); + + dop_dissector_table = register_dissector_table("dop.oid", "DOP OID Dissectors", FT_STRING, BASE_NONE, DISSECTOR_TABLE_ALLOW_DUPLICATE); + + /* Register fields and subtrees */ + proto_register_field_array(proto_dop, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + expert_dop = expert_register_protocol(proto_dop); + expert_register_field_array(expert_dop, ei, array_length(ei)); + + /* Register our configuration options for DOP, particularly our port */ + + dop_module = prefs_register_protocol_subtree("OSI/X.500", proto_dop, prefs_register_dop); + + prefs_register_uint_preference(dop_module, "tcp.port", "DOP TCP Port", + "Set the port for DOP operations (if other" + " than the default of 102)", + 10, &global_dop_tcp_port); + + +} + + +/*--- proto_reg_handoff_dop --- */ +void proto_reg_handoff_dop(void) { + dissector_handle_t dop_handle; + +#include "packet-dop-dis-tab.c" + /* APPLICATION CONTEXT */ + + oid_add_from_string("id-ac-directory-operational-binding-management","2.5.3.3"); + + /* ABSTRACT SYNTAXES */ + + /* Register DOP with ROS (with no use of RTSE) */ + dop_handle = find_dissector("dop"); + register_ros_oid_dissector_handle("2.5.9.4", dop_handle, 0, "id-as-directory-operational-binding-management", FALSE); + + /* BINDING TYPES */ + + oid_add_from_string("shadow-agreement","2.5.19.1"); + oid_add_from_string("hierarchical-agreement","2.5.19.2"); + oid_add_from_string("non-specific-hierarchical-agreement","2.5.19.3"); + + /* ACCESS CONTROL SCHEMES */ + oid_add_from_string("basic-ACS","2.5.28.1"); + oid_add_from_string("simplified-ACS","2.5.28.2"); + oid_add_from_string("ruleBased-ACS","2.5.28.3"); + oid_add_from_string("ruleAndBasic-ACS","2.5.28.4"); + oid_add_from_string("ruleAndSimple-ACS","2.5.28.5"); + + /* ADMINISTRATIVE ROLES */ + oid_add_from_string("id-ar-autonomousArea","2.5.23.1"); + oid_add_from_string("id-ar-accessControlSpecificArea","2.5.23.2"); + oid_add_from_string("id-ar-accessControlInnerArea","2.5.23.3"); + oid_add_from_string("id-ar-subschemaAdminSpecificArea","2.5.23.4"); + oid_add_from_string("id-ar-collectiveAttributeSpecificArea","2.5.23.5"); + oid_add_from_string("id-ar-collectiveAttributeInnerArea","2.5.23.6"); + oid_add_from_string("id-ar-contextDefaultSpecificArea","2.5.23.7"); + oid_add_from_string("id-ar-serviceSpecificArea","2.5.23.8"); + + /* remember the tpkt handler for change in preferences */ + tpkt_handle = find_dissector("tpkt"); + +} + +static void +prefs_register_dop(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_dop_tcp_port; + + if((tcp_port > 0) && (tcp_port != 102) && tpkt_handle) + dissector_add_uint("tcp.port", tcp_port, tpkt_handle); + +} |