/* packet-dcerpc-conv.c

 * Routines for dcerpc conv dissection

 * Copyright 2001, Todd Sabin <tas@webspan.net>

 *

 * 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"

#include "packet-dcerpc-dce122.h"

void proto_register_conv (void);

void proto_reg_handoff_conv (void);

static int proto_conv;

static int hf_conv_opnum;

static int hf_conv_rc;

static int hf_conv_who_are_you_rqst_actuid;

static int hf_conv_who_are_you_rqst_boot_time;

static int hf_conv_who_are_you2_rqst_actuid;

static int hf_conv_who_are_you2_rqst_boot_time;

static int hf_conv_who_are_you_resp_seq;

static int hf_conv_who_are_you2_resp_seq;

static int hf_conv_who_are_you2_resp_casuuid;

static int ett_conv;

static e_guid_t uuid_conv = { 0x333a2276, 0x0000, 0x0000, { 0x0d, 0x00, 0x00, 0x80, 0x9c, 0x00, 0x00, 0x00 } };

static uint16_t ver_conv = 3;

static unsigned

conv_dissect_who_are_you_rqst (tvbuff_t *tvb, unsigned offset,

             packet_info *pinfo, proto_tree *tree,

             dcerpc_info *di, uint8_t *drep)

{

  /*

   *         [in]    uuid_t          *actuid,

   *         [in]    unsigned32      boot_time,

   */

  e_guid_t actuid;

  offset = dissect_ndr_uuid_t(tvb, offset, pinfo, tree, di, drep, hf_conv_who_are_you_rqst_actuid, &actuid);

  offset = dissect_ndr_time_t(tvb, offset, pinfo, tree, di, drep, hf_conv_who_are_you_rqst_boot_time, NULL);

  col_add_fstr(pinfo->cinfo, COL_INFO,

           "conv_who_are_you request actuid: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",

           actuid.data1, actuid.data2, actuid.data3,

           actuid.data4[0], actuid.data4[1], actuid.data4[2], actuid.data4[3],

           actuid.data4[4], actuid.data4[5], actuid.data4[6], actuid.data4[7]);

  return offset;

}

static unsigned

conv_dissect_who_are_you_resp (tvbuff_t *tvb, unsigned offset,

             packet_info *pinfo, proto_tree *tree,

             dcerpc_info *di, uint8_t *drep)

{

  /*

   *         [out]   unsigned32      *seq,

   *         [out]   unsigned32      *st

   */

  uint32_t seq, st;

  offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, di, drep, hf_conv_who_are_you_resp_seq, &seq);

  offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, di, drep, hf_conv_rc, &st);

  col_add_fstr(pinfo->cinfo, COL_INFO, "conv_who_are_you response seq:%u st:%s",

           seq, val_to_str_ext(pinfo->pool, st, &dce_error_vals_ext, "%u"));

  return offset;

}

static unsigned

conv_dissect_who_are_you2_rqst (tvbuff_t *tvb, unsigned offset,

        packet_info *pinfo, proto_tree *tree,

        dcerpc_info *di, uint8_t *drep)

{

  /*

   *         [in]    uuid_t          *actuid,

   *         [in]    unsigned32      boot_time,

   */

  e_guid_t actuid;

  offset = dissect_ndr_uuid_t(tvb, offset, pinfo, tree, di, drep, hf_conv_who_are_you2_rqst_actuid, &actuid);

  offset = dissect_ndr_time_t(tvb, offset, pinfo, tree, di, drep, hf_conv_who_are_you2_rqst_boot_time, NULL);

    col_add_fstr(pinfo->cinfo, COL_INFO,

           "conv_who_are_you2 request actuid: %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",

           actuid.data1, actuid.data2, actuid.data3,

           actuid.data4[0], actuid.data4[1], actuid.data4[2], actuid.data4[3],

           actuid.data4[4], actuid.data4[5], actuid.data4[6], actuid.data4[7]);

  return offset;

}

static unsigned

conv_dissect_who_are_you2_resp (tvbuff_t *tvb, unsigned offset,

        packet_info *pinfo, proto_tree *tree,

        dcerpc_info *di, uint8_t *drep)

{

  /*

   *         [out]   unsigned32      *seq,

   *         [out]   uuid_t          *cas_uuid,

   *

   *         [out]   unsigned32      *st

   */

  uint32_t seq, st;

  e_guid_t cas_uuid;

  offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, di, drep, hf_conv_who_are_you2_resp_seq, &seq);

  offset = dissect_ndr_uuid_t (tvb, offset, pinfo, tree, di, drep, hf_conv_who_are_you2_resp_casuuid, &cas_uuid);

  offset = dissect_ndr_uint32 (tvb, offset, pinfo, tree, di, drep, hf_conv_rc, &st);

  col_add_fstr(pinfo->cinfo, COL_INFO,

           "conv_who_are_you2 response seq:%u st:%s cas:%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",

           seq, val_to_str_ext(pinfo->pool, st, &dce_error_vals_ext, "%u"),

           cas_uuid.data1, cas_uuid.data2, cas_uuid.data3,

           cas_uuid.data4[0], cas_uuid.data4[1], cas_uuid.data4[2], cas_uuid.data4[3],

           cas_uuid.data4[4], cas_uuid.data4[5], cas_uuid.data4[6], cas_uuid.data4[7]);

  return offset;

}

static const dcerpc_sub_dissector conv_dissectors[] = {

  { 0, "who_are_you",

    conv_dissect_who_are_you_rqst, conv_dissect_who_are_you_resp },

  { 1, "who_are_you2",

    conv_dissect_who_are_you2_rqst, conv_dissect_who_are_you2_resp },

  { 2, "are_you_there",

    NULL, NULL },

  { 3, "who_are_you_auth",

    NULL, NULL },

  { 4, "who_are_you_auth_more",

    NULL, NULL },

  { 0, NULL, NULL, NULL }

};

void

proto_register_conv (void)

{

  static hf_register_info hf[] = {

  { &hf_conv_opnum,

      { "Operation", "conv.opnum", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},

  { &hf_conv_rc,

      {"Status", "conv.status", FT_UINT32, BASE_DEC|BASE_EXT_STRING, &dce_error_vals_ext, 0x0, NULL, HFILL }},

  { &hf_conv_who_are_you_rqst_actuid,

      {"Activity UID", "conv.who_are_you_rqst_actuid", FT_GUID, BASE_NONE, NULL, 0x0, "UUID", HFILL }},

  { &hf_conv_who_are_you_rqst_boot_time,

      {"Boot time", "conv.who_are_you_rqst_boot_time", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL }},

  { &hf_conv_who_are_you2_rqst_actuid,

      {"Activity UID", "conv.who_are_you2_rqst_actuid", FT_GUID, BASE_NONE, NULL, 0x0, "UUID", HFILL }},

  { &hf_conv_who_are_you2_rqst_boot_time,

      {"Boot time", "conv.who_are_you2_rqst_boot_time", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL }},

  { &hf_conv_who_are_you_resp_seq,

      {"Sequence Number", "conv.who_are_you_resp_seq", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},

  { &hf_conv_who_are_you2_resp_seq,

      {"Sequence Number", "conv.who_are_you2_resp_seq", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},

  { &hf_conv_who_are_you2_resp_casuuid,

      {"Client's address space UUID", "conv.who_are_you2_resp_casuuid", FT_GUID, BASE_NONE, NULL, 0x0, NULL, HFILL }}

  };

  static int *ett[] = {

    &ett_conv

  };

  proto_conv = proto_register_protocol ("DCE/RPC Conversation Manager", "CONV", "conv");

  proto_register_field_array (proto_conv, hf, array_length (hf));

  proto_register_subtree_array (ett, array_length (ett));

}

void

proto_reg_handoff_conv (void)

{

  /* Register the protocol as dcerpc */

  dcerpc_init_uuid (proto_conv, ett_conv, &uuid_conv, ver_conv, conv_dissectors, hf_conv_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:

 */