forked from osmocom/wireshark
283 lines
8.9 KiB
C
283 lines
8.9 KiB
C
/* packet-dcerpc-oxid.c
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* Routines for DCOM OXID Resolver
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* Copyright 2001, Todd Sabin <tas@webspan.net>
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*
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* $Id: packet-dcerpc-oxid.c,v 1.11 2004/01/19 20:10:35 jmayer Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include "packet-dcerpc.h"
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#include "packet-dcerpc-dcom.h"
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#include "packet-smb-common.h"
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static int proto_oxid = -1;
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static int hf_opnum = -1;
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static int hf_COMVERSION_MjrVer = -1;
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static int hf_COMVERSION_MnrVer = -1;
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static int hf_wNumEntries = -1;
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static int hf_wSecurityOffset = -1;
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static int hf_wTowerId = -1;
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static int hf_aNetworkAddr = -1;
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static int hf_wAuthnSvc = -1;
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static int hf_wAuthzSvc = -1;
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static int hf_aPrinceName = -1;
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static int hf_Unknown1 = -1;
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static int hf_Unknown2 = -1;
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static gint ett_oxid = -1;
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static e_uuid_t uuid_oxid = { 0x99fcfec4, 0x5260, 0x101b, { 0xbb, 0xcb, 0x00, 0xaa, 0x00, 0x21, 0x34, 0x7a } };
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static guint16 ver_oxid = 0;
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static const char *
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authz_val2str(unsigned short authz) {
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switch (authz) {
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case 0:
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return "RPC_C_AUTHZ_NONE";
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break;
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case 1:
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return "RPC_C_AUTHZ_NAME";
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break;
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case 2:
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return "RPC_C_AUTHZ_DCE";
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break;
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case 0xffff:
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return "Default";
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break;
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default:
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return "Unknown";
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break;
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}
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}
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static const char *
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authn_val2str(unsigned short authn) {
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switch (authn) {
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case 0:
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return "RPC_C_AUTHN_NONE";
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break;
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case 1:
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return "RPC_C_AUTHN_DCE_PRIVATE";
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break;
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case 2:
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return "RPC_C_AUTHN_DCE_PUBLIC";
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break;
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case 4:
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return "RPC_C_AUTHN_DEC_PUBLIC";
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break;
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case 9:
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return "RPC_C_AUTHN_GSS_NEGOTIATE";
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break;
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case 10:
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return "RPC_C_AUTH_WINNT";
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break;
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case 14:
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return "RPC_C_AUTHN_GSS_SCHANNEL";
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break;
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case 16:
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return "RPC_C_AUTHN_GSS_KERBEROS";
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break;
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case 17:
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return "RPC_C_AUTHN_MSN";
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break;
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case 18:
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return "RPC_C_AUTHN_DPA";
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break;
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case 100:
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return "RPC_C_AUTHN_MQ";
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break;
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case 0xffff:
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return "RPC_C_AUTHN_DEFAULT";
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break;
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default:
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return "Unknown";
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break;
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}
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}
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static const char *
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towerid_val2str(unsigned short tower) {
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switch (tower) {
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case 0x4:
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return "NCACN_DNET_NSP";
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break;
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case 0x7:
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return "NCACN_IP_TCP";
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break;
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case 0x8:
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return "NCADG_IP_UDP";
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break;
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case 0xC:
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return "NCACN_SPX";
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break;
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case 0xD:
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return "NCACN_NB_IPX";
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break;
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case 0xE:
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return "NCADG_IPX";
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break;
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case 0x12:
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return "NCACN_NB_NB";
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break;
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case 0x1F:
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return "NCACN_HTTP";
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break;
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default:
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return "Unknown";
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break;
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}
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}
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static int
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oxid_server_alive2_dissect_rply(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree, guint8 *drep) {
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COMVERSION comver;
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DUALSTRINGARRAY stringarray;
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STRINGBINDING stringbind;
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SECURITYBINDING securitybind;
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proto_item *bind_hdr, *entries_hdr, *sec_hdr;
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proto_tree *bind_tree, *entries_tree, *sec_tree;
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char *aNetworkAddr = NULL;
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char *aPrinceName = NULL;
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unsigned short string_len = 0;
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unsigned short security_len = 0;
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unsigned char unknown1[8];
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unsigned char unknown2[8];
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dissect_dcerpc_uint16(tvb, offset, pinfo, tree, drep, hf_COMVERSION_MjrVer, &comver.MajorVersion);
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offset += sizeof(comver.MajorVersion);
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dissect_dcerpc_uint16(tvb, offset, pinfo, tree, drep, hf_COMVERSION_MnrVer, &comver.MinorVersion);
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offset += sizeof(comver.MinorVersion);
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dissect_dcerpc_uint64(tvb , offset, pinfo, tree, drep, hf_Unknown1, unknown1);
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offset += sizeof(unknown1); /*FIXME - understand what those 8 bytes mean! don't skip'em!*/
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string_len = dcerpc_tvb_get_ntohs(tvb, offset, drep) * 2;
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bind_hdr = proto_tree_add_text(tree, tvb, offset, (int)string_len, "DUALSTRINGARRAY structure");
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bind_tree = proto_item_add_subtree(bind_hdr, 0);
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dissect_dcerpc_uint16(tvb, offset, pinfo, bind_tree, drep, hf_wNumEntries, &stringarray.wNumEntries);
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offset += sizeof(stringarray.wNumEntries);
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security_len = dcerpc_tvb_get_ntohs(tvb, offset, drep) * 2;
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dissect_dcerpc_uint16(tvb, offset, pinfo, bind_tree, drep, hf_wSecurityOffset, &stringarray.wSecurityOffset);
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offset += sizeof(stringarray.wSecurityOffset);
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entries_hdr = proto_tree_add_text(bind_tree, tvb, offset, (int)security_len, "STRING BINDING");
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entries_tree = proto_item_add_subtree(entries_hdr, 0);
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while(tvb_get_ntohs(tvb, offset) != 0) { /* check that this is not terminating zero */
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stringbind.wTowerId = dcerpc_tvb_get_ntohs(tvb, offset, drep);
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proto_tree_add_text(entries_tree, tvb, offset, sizeof(stringbind.wTowerId), "Network Protocol ('TowerID'): %s (0x%x)",towerid_val2str(stringbind.wTowerId), stringbind.wTowerId);
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offset += sizeof(stringbind.wTowerId);
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offset = display_unicode_string(tvb, entries_tree, offset, hf_aNetworkAddr, &aNetworkAddr);
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}
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offset += 2; /* hop over the extra terminating zero */
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sec_hdr = proto_tree_add_text(bind_tree, tvb, offset, 0, "SECURITY BINDING");
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sec_tree = proto_item_add_subtree(sec_hdr, 0);
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while(tvb_get_ntohs(tvb, offset) != 0) {
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securitybind.wAuthnSvc = dcerpc_tvb_get_ntohs(tvb, offset, drep);
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proto_tree_add_text(sec_tree, tvb, offset, sizeof(securitybind.wAuthnSvc), "Authentication Service: %s (0x%x)",authn_val2str(securitybind.wAuthnSvc),securitybind.wAuthnSvc);
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offset += sizeof(securitybind.wAuthnSvc);
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securitybind.wAuthzSvc = dcerpc_tvb_get_ntohs(tvb, offset, drep);
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proto_tree_add_text(sec_tree, tvb, offset, sizeof(securitybind.wAuthzSvc), "Authorization Service: %s (0x%x)",authz_val2str(securitybind.wAuthzSvc),securitybind.wAuthzSvc);
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offset += sizeof(securitybind.wAuthzSvc);
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offset = display_unicode_string(tvb, sec_tree, offset, hf_aPrinceName, &aPrinceName);
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}
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offset += 2; /* hop over the extra terminating zero */
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dissect_dcerpc_uint64(tvb, offset, pinfo, tree, drep, hf_Unknown2, unknown2);
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offset += sizeof(unknown2);
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return offset;
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}
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static dcerpc_sub_dissector oxid_dissectors[] = {
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{ 0, "ResolveOxid", NULL, NULL },
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{ 1, "SimplePing", NULL, NULL },
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{ 2, "ComplexPing", NULL, NULL },
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{ 3, "ServerAlive", NULL, NULL },
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{ 4, "ResolveOxid2", NULL, NULL },
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{ 5, "ServerAlive2", NULL, oxid_server_alive2_dissect_rply },
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{ 0, NULL, NULL, NULL },
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};
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void
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proto_register_oxid (void)
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{
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static hf_register_info hf[] = {
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{ &hf_opnum,
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{ "Operation", "oxid.opnum", FT_UINT16, BASE_DEC,
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NULL, 0x0, "", HFILL }},
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{ &hf_COMVERSION_MjrVer,
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{ "COM Major Version", "oxid5.com_mjr_ver", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }},
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{ &hf_COMVERSION_MnrVer,
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{ "COM Minor Version", "oxid5.com_mnr_ver", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }},
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{ &hf_wNumEntries,
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{ "Total Entries length (in 16 bytes blocks)", "oxid5.NumEntries", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }},
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{ &hf_wSecurityOffset,
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{ "Offset of Security Binding (in 16 bytes blocks)", "oxid5.SecurityOffset", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }},
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{ &hf_wTowerId,
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{ "Network Protocol ('TowerID')", "oxid5.wTowerId", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }},
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{ &hf_aNetworkAddr,
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{ "Network Address ('aNetworkAddr')", "oxid5.aNetworkAddr", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
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{ &hf_wAuthnSvc,
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{ "Authentication Service", "oxid5.AuthnSvc", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }},
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{ &hf_wAuthzSvc,
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{ "Autherization Service", "oxid5.AuthzSvc", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }},
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{ &hf_aPrinceName,
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{ "aPrinceName", "oxid5.aPrinceName", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
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{ &hf_Unknown1,
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{ "unknown 8 bytes 1", "oxid5.unknown1", FT_UINT64, BASE_HEX, NULL, 0x0, "", HFILL }},
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{ &hf_Unknown2,
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{ "unknown 8 bytes 2", "oxid5.unknown2", FT_UINT64, BASE_HEX, NULL, 0x0, "", HFILL }},
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};
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static gint *ett[] = {
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&ett_oxid
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};
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proto_oxid = proto_register_protocol ("DCOM OXID Resolver", "OXID", "oxid");
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proto_register_field_array (proto_oxid, hf, array_length (hf));
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proto_register_subtree_array (ett, array_length (ett));
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}
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void
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proto_reg_handoff_oxid (void)
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{
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/* Register the protocol as dcerpc */
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dcerpc_init_uuid (proto_oxid, ett_oxid, &uuid_oxid, ver_oxid, oxid_dissectors, hf_opnum);
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}
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