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/* packet-dcerpc-rpriv.c
*
* Routines for DCERPC Privilege Server operations
* Copyright 2002, Jaime Fournier <Jaime.Fournier@hush.com>
* This information is based off the released idl files from opengroup.
* ftp://ftp.opengroup.org/pub/dce122/dce/src/security.tar.gz security/idl/rpriv.idl
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include "packet-dcerpc.h"
void proto_register_rpriv (void);
void proto_reg_handoff_rpriv (void);
static int proto_rpriv = -1;
static int hf_rpriv_opnum = -1;
static int hf_rpriv_get_eptgt_rqst_authn_svc = -1;
static int hf_rpriv_get_eptgt_rqst_authz_svc = -1;
static int hf_rpriv_get_eptgt_rqst_var1 = -1;
/* static int hf_rpriv_get_eptgt_rqst_key_size = -1; */
static int hf_rpriv_get_eptgt_rqst_key_size2 = -1;
static int hf_rpriv_get_eptgt_rqst_key_t = -1;
static int hf_rpriv_get_eptgt_rqst_key_t2 = -1;
static gint ett_rpriv = -1;
static e_guid_t uuid_rpriv = { 0xb1e338f8, 0x9533, 0x11c9, { 0xa3, 0x4a, 0x08, 0x00, 0x1e, 0x01, 0x9c, 0x1e } };
static guint16 ver_rpriv = 1;
static int
rpriv_dissect_get_eptgt_rqst (tvbuff_t *tvb, int offset,
packet_info *pinfo, proto_tree *tree,
dcerpc_info *di, guint8 *drep)
{
/* [in] handle_t handle,
* [in] unsigned32 authn_svc,
* [in] unsigned32 authz_svc,
* [in] rpriv_pickle_t *ptgt_req,
* unsigned32 num_bytes;
* [size_is(num_bytes)]
* byte bytes[];
*/
guint32 authn_svc, authz_svc, key_size, key_size2, var1;
const guint8 *key_t1 = NULL;
const guint8 *key_t2 = NULL;
offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep, hf_rpriv_get_eptgt_rqst_authn_svc, &authn_svc);
offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep, hf_rpriv_get_eptgt_rqst_authz_svc, &authz_svc);
offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep, hf_rpriv_get_eptgt_rqst_var1, &var1);
offset += 276;
offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep, hf_rpriv_get_eptgt_rqst_key_size2, &key_size);
/* advance to get size of cell, and princ */
proto_tree_add_item_ret_string(tree, hf_rpriv_get_eptgt_rqst_key_t, tvb, offset, key_size, ENC_ASCII|ENC_NA, pinfo->pool, &key_t1);
offset += key_size;
offset += 8;
offset = dissect_ndr_uint32(tvb, offset, pinfo, tree, di, drep, hf_rpriv_get_eptgt_rqst_key_size2, &key_size2);
proto_tree_add_item_ret_string(tree, hf_rpriv_get_eptgt_rqst_key_t2, tvb, offset, key_size2, ENC_ASCII|ENC_NA, pinfo->pool, &key_t2);
offset += key_size2;
col_append_fstr(pinfo->cinfo, COL_INFO,
" Request for: %s in %s ", key_t2, key_t1);
return offset;
}
static dcerpc_sub_dissector rpriv_dissectors[] = {
{ 0, "get_ptgt", NULL,NULL},
{ 1, "become_delegate", NULL, NULL},
{ 2, "become_impersonator", NULL, NULL},
{ 3, "get_eptgt", rpriv_dissect_get_eptgt_rqst , NULL},
{ 0, NULL, NULL, NULL }
};
void
proto_register_rpriv (void)
{
static hf_register_info hf[] = {
{ &hf_rpriv_opnum,
{ "Operation", "rpriv.opnum", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_rpriv_get_eptgt_rqst_authn_svc,
{ "Authn_Svc", "rpriv.get_eptgt_rqst_authn_svc", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_rpriv_get_eptgt_rqst_authz_svc,
{ "Authz_Svc", "rpriv.get_eptgt_rqst_authz_svc", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
#if 0
{ &hf_rpriv_get_eptgt_rqst_key_size,
{ "Key_Size", "rpriv.get_eptgt_rqst_key_size", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
#endif
{ &hf_rpriv_get_eptgt_rqst_var1,
{ "Var1", "rpriv.get_eptgt_rqst_var1", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_rpriv_get_eptgt_rqst_key_size2,
{ "Key_Size", "rpriv.get_eptgt_rqst_key_size2", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_rpriv_get_eptgt_rqst_key_t,
{ "Key_t", "rpriv.get_eptgt_rqst_key_t", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rpriv_get_eptgt_rqst_key_t2,
{ "Key_t2", "rpriv.get_eptgt_rqst_key_t2", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
};
static gint *ett[] = {
&ett_rpriv,
};
proto_rpriv = proto_register_protocol ("Privilege Server operations", "rpriv", "rpriv");
proto_register_field_array (proto_rpriv, hf, array_length (hf));
proto_register_subtree_array (ett, array_length (ett));
}
void
proto_reg_handoff_rpriv (void)
{
/* Register the protocol as dcerpc */
dcerpc_init_uuid (proto_rpriv, ett_rpriv, &uuid_rpriv, ver_rpriv, rpriv_dissectors, hf_rpriv_opnum);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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