/* packet-dcom-remunkn.c * Routines for the IRemUnknown interface * Copyright 2004, Jelmer Vernooij * * $Id$ * * Ethereal - Network traffic analyzer * By Gerald Combs * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* see packet-dcom.c for details about DCOM */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include "packet-dcerpc.h" #include "packet-dcom.h" static int hf_remunk_opnum = -1; static int hf_remunk_ipid = -1; static int hf_remunk_refs = -1; static int hf_remunk_iids = -1; static int hf_remunk_iid = -1; static int hf_remunk_flags = -1; static int hf_remunk_oxid = -1; static int hf_remunk_oid = -1; static int hf_remunk_qiresult = -1; static gint ett_remunk_reminterfaceref = -1; static int hf_remunk_reminterfaceref = -1; static int hf_remunk_interface_refs = -1; static int hf_remunk_public_refs = -1; static int hf_remunk_private_refs = -1; static gint ett_remunk_rqi_result = -1; static gint ett_remunk = -1; static e_uuid_t uuid_remunk = { 0x00000131, 0x0000, 0x0000, { 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46 } }; static guint16 ver_remunk = 0; static int proto_remunk = -1; /* There is a little bit confusion about the IRemUnknown2 interface UUIDs */ /* DCOM documentation tells us: 0x00000142 (7 methods) */ /* win2000 registry tells us: 0x00000142 IRemoteQI (4 methods) */ /* win2000 registry tells us: 0x00000143 IRemUnknown2 (7 methods) */ /* There is some evidence, that the DCOM documentation is wrong, so using 143 for IRemUnknown2 now. */ static gint ett_remunk2 = -1; static e_uuid_t uuid_remunk2 = { 0x00000143, 0x0000, 0x0000, { 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46 } }; static guint16 ver_remunk2 = 0; static int proto_remunk2 = -1; static int dissect_remunk_remqueryinterface_rqst(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { e_uuid_t ipid; guint32 u32Refs; guint16 u16IIDs; guint32 u32ArraySize; guint32 u32ItemIdx; offset = dissect_dcom_this(tvb, offset, pinfo, tree, drep); offset = dissect_dcom_UUID(tvb, offset, pinfo, tree, drep, hf_remunk_ipid, &ipid); offset = dissect_dcom_DWORD(tvb, offset, pinfo, tree, drep, hf_remunk_refs, &u32Refs); offset = dissect_dcom_WORD(tvb, offset, pinfo, tree, drep, hf_remunk_iids, &u16IIDs); offset = dissect_dcom_dcerpc_array_size(tvb, offset, pinfo, tree, drep, &u32ArraySize); u32ItemIdx = 1; while (u32ArraySize--) { offset = dissect_dcom_append_UUID(tvb, offset, pinfo, tree, drep, hf_remunk_iid, "IID", u32ItemIdx); } return offset; } static int dissect_remunk_remqueryinterface_resp(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { guint32 u32Pointer; guint32 u32ArraySize; guint32 u32ItemIdx; proto_item *sub_item; proto_tree *sub_tree; guint32 u32HResult; guint32 u32SubStart; offset = dissect_dcom_that(tvb, offset, pinfo, tree, drep); offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, tree, drep, &u32Pointer); offset = dissect_dcom_dcerpc_array_size(tvb, offset, pinfo, tree, drep, &u32ArraySize); u32ItemIdx = 1; while (u32ArraySize--) { /* add subtree */ sub_item = proto_tree_add_item(tree, hf_remunk_qiresult, tvb, offset, 0, FALSE); sub_tree = proto_item_add_subtree(sub_item, ett_remunk_rqi_result); /* REMQIRESULT */ offset = dissect_dcom_HRESULT(tvb, offset, pinfo, sub_tree, drep, &u32HResult); u32SubStart = offset - 4; offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, sub_tree, drep, &u32Pointer); if (u32Pointer) { offset = dissect_dcom_STDOBJREF(tvb, offset, pinfo, sub_tree, drep, 0 /* hfindex */); } /* update subtree */ proto_item_append_text(sub_item, "[%u]: %s", u32ItemIdx, val_to_str(u32HResult, dcom_hresult_vals, "Unknown (0x%08x)") ); proto_item_set_len(sub_item, offset - u32SubStart); /* update column info now */ if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, " %s[%u]", val_to_str(u32HResult, dcom_hresult_vals, "Unknown (0x%08x)"), u32ItemIdx); } u32ItemIdx++; } /* HRESULT of call */ offset = dissect_dcom_HRESULT(tvb, offset, pinfo, tree, drep, &u32HResult); /* update column info now */ if (check_col(pinfo->cinfo, COL_INFO)) { col_append_fstr(pinfo->cinfo, COL_INFO, " -> %s", val_to_str(u32HResult, dcom_hresult_vals, "Unknown (0x%08x)")); } return offset; } static int dissect_remunk_remrelease_rqst(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, guint8 *drep) { guint32 u32Pointer; guint32 u32IntRefs; guint32 u32ItemIdx; e_uuid_t ipid; guint32 u32PublicRefs; guint32 u32PrivateRefs; const gchar *pszFormat; proto_item *sub_item; proto_tree *sub_tree; guint32 u32SubStart; offset = dissect_dcom_this(tvb, offset, pinfo, tree, drep); offset = dissect_dcom_dcerpc_pointer(tvb, offset, pinfo, tree, drep, &u32Pointer); offset = dissect_dcom_DWORD(tvb, offset, pinfo, tree, drep, hf_remunk_interface_refs, &u32IntRefs); /* update column info now */ if (check_col(pinfo->cinfo, COL_INFO)) { if (u32IntRefs) { col_append_fstr(pinfo->cinfo, COL_INFO, " Cnt=%u Refs=", u32IntRefs); } else { col_append_fstr(pinfo->cinfo, COL_INFO, " Cnt=0"); } } u32ItemIdx = 1; while (u32IntRefs--) { /* add subtree */ sub_item = proto_tree_add_item(tree, hf_remunk_reminterfaceref, tvb, offset, 0, FALSE); sub_tree = proto_item_add_subtree(sub_item, ett_remunk_reminterfaceref); u32SubStart = offset; offset = dissect_dcom_UUID(tvb, offset, pinfo, sub_tree, drep, hf_remunk_ipid, &ipid); offset = dissect_dcom_DWORD(tvb, offset, pinfo, sub_tree, drep, hf_remunk_public_refs, &u32PublicRefs); offset = dissect_dcom_DWORD(tvb, offset, pinfo, sub_tree, drep, hf_remunk_private_refs, &u32PrivateRefs); /* update subtree */ proto_item_append_text(sub_item, "[%u]: IPID=%s, PublicRefs=%u, PrivateRefs=%u", u32ItemIdx, dcom_uuid_to_str(&ipid), u32PublicRefs, u32PrivateRefs); proto_item_set_len(sub_item, offset - u32SubStart); /* update column info now */ if (check_col(pinfo->cinfo, COL_INFO)) { pszFormat = ""; if (u32ItemIdx == 1) { pszFormat = "%u-%u"; } else if (u32ItemIdx < 10) { pszFormat = ",%u-%u"; } else if (u32ItemIdx == 10) { pszFormat = ",..."; } col_append_fstr(pinfo->cinfo, COL_INFO, pszFormat, u32PublicRefs, u32PrivateRefs); } u32ItemIdx++; } return offset; } /* sub dissector table of IRemUnknown interface */ static dcerpc_sub_dissector remunk_dissectors[] = { { 0, "QueryInterface", NULL, NULL }, { 1, "AddRef", NULL, NULL }, { 2, "Release", NULL, NULL }, { 3, "RemQueryInterface", dissect_remunk_remqueryinterface_rqst, dissect_remunk_remqueryinterface_resp }, { 4, "RemAddRef", NULL, NULL }, { 5, "RemRelease", dissect_remunk_remrelease_rqst, dissect_dcom_simple_resp }, { 0, NULL, NULL, NULL } }; /* sub dissector table of IRemUnknown2 interface */ static dcerpc_sub_dissector remunk2_dissectors[] = { { 0, "QueryInterface", NULL, NULL }, { 1, "AddRef", NULL, NULL }, { 2, "Release", NULL, NULL }, { 3, "RemQueryInterface", dissect_remunk_remqueryinterface_rqst, dissect_remunk_remqueryinterface_resp }, { 4, "RemAddRef", NULL, NULL }, { 5, "RemRelease", dissect_remunk_remrelease_rqst, dissect_dcom_simple_resp }, { 6, "RemQueryInterface2", NULL, NULL }, { 0, NULL, NULL, NULL } }; void proto_register_remunk (void) { static hf_register_info hf_remunk_rqi_array[] = { { &hf_remunk_opnum, { "Operation", "remunk_opnum", FT_UINT16, BASE_DEC, NULL, 0x0, "Operation", HFILL }}, { &hf_remunk_ipid, { "IPID", "remunk_ipid", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }}, { &hf_remunk_refs, { "Refs", "remunk_refs", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }}, { &hf_remunk_iids, { "IIDs", "remunk_iids", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }}, { &hf_remunk_iid, { "IID", "remunk_iid", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }}, { &hf_remunk_qiresult, { "QIResult", "remunk_qiresult", FT_NONE, BASE_DEC, NULL, 0x0, "", HFILL }}, { &hf_remunk_flags, { "Flags", "remunk_flags", FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL }}, { &hf_remunk_public_refs, { "PublicRefs", "remunk_public_refs", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }}, { &hf_remunk_oxid, { "OXID", "remunk_oxid", FT_UINT64, BASE_HEX, NULL, 0x0, "", HFILL }}, { &hf_remunk_oid, { "OID", "remunk_oid", FT_UINT64, BASE_HEX, NULL, 0x0, "", HFILL }}, { &hf_remunk_reminterfaceref, { "RemInterfaceRef", "remunk_reminterfaceref", FT_NONE, BASE_NONE, NULL, 0x0, "", HFILL }}, { &hf_remunk_interface_refs, { "InterfaceRefs", "remunk_int_refs", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }}, { &hf_remunk_private_refs, { "PrivateRefs", "remunk_private_refs", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }} }; static gint *ett_remunk_array[] = { &ett_remunk, &ett_remunk_rqi_result, &ett_remunk2, &ett_remunk_reminterfaceref }; proto_remunk = proto_register_protocol ("IRemUnknown", "IRemUnknown", "remunk"); proto_register_field_array (proto_remunk, hf_remunk_rqi_array, array_length (hf_remunk_rqi_array)); proto_remunk2 = proto_register_protocol ("IRemUnknown2", "IRemUnknown2", "remunk2"); proto_register_subtree_array (ett_remunk_array, array_length (ett_remunk_array)); } void proto_reg_handoff_remunk (void) { /* Register the interfaces */ dcerpc_init_uuid(proto_remunk, ett_remunk, &uuid_remunk, ver_remunk, remunk_dissectors, hf_remunk_opnum); dcerpc_init_uuid(proto_remunk2, ett_remunk2, &uuid_remunk2, ver_remunk2, remunk2_dissectors, hf_remunk_opnum); }