/* 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;

static int hf_rpriv_opnum;

static int hf_rpriv_get_eptgt_rqst_authn_svc;

static int hf_rpriv_get_eptgt_rqst_authz_svc;

static int hf_rpriv_get_eptgt_rqst_var1;

/* static int hf_rpriv_get_eptgt_rqst_key_size; */

static int hf_rpriv_get_eptgt_rqst_key_size2;

static int hf_rpriv_get_eptgt_rqst_key_t;

static int hf_rpriv_get_eptgt_rqst_key_t2;

static int ett_rpriv;

static e_guid_t uuid_rpriv = { 0xb1e338f8, 0x9533, 0x11c9, { 0xa3, 0x4a, 0x08, 0x00, 0x1e, 0x01, 0x9c, 0x1e } };

static uint16_t ver_rpriv = 1;

static int

rpriv_dissect_get_eptgt_rqst (tvbuff_t *tvb, int offset,

            packet_info *pinfo, proto_tree *tree,

            dcerpc_info *di, uint8_t *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[];

   */

  uint32_t authn_svc, authz_svc, key_size, key_size2, var1;

  const uint8_t *key_t1 = NULL;

  const uint8_t *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 const 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 int *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:

 */