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netlogon.c
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/*
Unix SMB/CIFS implementation.
CLDAP server structures
Copyright (C) Andrew Bartlett <[email protected]> 2008
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "../libcli/netlogon.h"
NTSTATUS push_netlogon_samlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
struct netlogon_samlogon_response *response)
{
enum ndr_err_code ndr_err;
if (response->ntver == NETLOGON_NT_VERSION_1) {
ndr_err = ndr_push_struct_blob(data, mem_ctx,
&response->data.nt4,
(ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_NT40);
} else if (response->ntver & NETLOGON_NT_VERSION_5EX) {
ndr_err = ndr_push_struct_blob(data, mem_ctx,
&response->data.nt5_ex,
(ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags);
} else if (response->ntver & NETLOGON_NT_VERSION_5) {
ndr_err = ndr_push_struct_blob(data, mem_ctx,
&response->data.nt5,
(ndr_push_flags_fn_t)ndr_push_NETLOGON_SAM_LOGON_RESPONSE);
} else {
DEBUG(0, ("Asked to push unknown netlogon response type 0x%02x\n", response->ntver));
return NT_STATUS_INVALID_PARAMETER;
}
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
DEBUG(2,("failed to push netlogon response of type 0x%02x\n",
response->ntver));
return ndr_map_error2ntstatus(ndr_err);
}
return NT_STATUS_OK;
}
NTSTATUS pull_netlogon_samlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
struct netlogon_samlogon_response *response)
{
uint32_t ntver;
enum ndr_err_code ndr_err;
if (data->length < 8) {
return NT_STATUS_BUFFER_TOO_SMALL;
}
/* lmnttoken */
if (SVAL(data->data, data->length - 4) != 0xffff) {
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
/* lm20token */
if (SVAL(data->data, data->length - 2) != 0xffff) {
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
ntver = IVAL(data->data, data->length - 8);
if (ntver == NETLOGON_NT_VERSION_1) {
ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
&response->data.nt4,
(ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_NT40);
response->ntver = NETLOGON_NT_VERSION_1;
if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_NT40,
&response->data.nt4);
}
} else if (ntver & NETLOGON_NT_VERSION_5EX) {
struct ndr_pull *ndr;
ndr = ndr_pull_init_blob(data, mem_ctx);
if (!ndr) {
return NT_STATUS_NO_MEMORY;
}
ndr_err = ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags(
ndr, NDR_SCALARS|NDR_BUFFERS, &response->data.nt5_ex,
ntver);
if (ndr->offset < ndr->data_size) {
ndr_err = ndr_pull_error(ndr, NDR_ERR_UNREAD_BYTES,
"not all bytes consumed ofs[%u] size[%u]",
ndr->offset, ndr->data_size);
}
response->ntver = NETLOGON_NT_VERSION_5EX;
if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE_EX,
&response->data.nt5_ex);
}
} else if (ntver & NETLOGON_NT_VERSION_5) {
ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
&response->data.nt5,
(ndr_pull_flags_fn_t)ndr_pull_NETLOGON_SAM_LOGON_RESPONSE);
response->ntver = NETLOGON_NT_VERSION_5;
if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && DEBUGLEVEL >= 10) {
NDR_PRINT_DEBUG(NETLOGON_SAM_LOGON_RESPONSE,
&response->data.nt5);
}
} else {
DEBUG(2,("failed to parse netlogon response of type 0x%02x - unknown response type\n",
ntver));
dump_data(10, data->data, data->length);
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
DEBUG(2,("failed to parse netlogon response of type 0x%02x\n",
ntver));
dump_data(10, data->data, data->length);
return ndr_map_error2ntstatus(ndr_err);
}
return NT_STATUS_OK;
}
void map_netlogon_samlogon_response(struct netlogon_samlogon_response *response)
{
struct NETLOGON_SAM_LOGON_RESPONSE_EX response_5_ex;
switch (response->ntver) {
case NETLOGON_NT_VERSION_5EX:
break;
case NETLOGON_NT_VERSION_5:
ZERO_STRUCT(response_5_ex);
response_5_ex.command = response->data.nt5.command;
response_5_ex.pdc_name = response->data.nt5.pdc_name;
response_5_ex.user_name = response->data.nt5.user_name;
response_5_ex.domain_name = response->data.nt5.domain_name;
response_5_ex.domain_uuid = response->data.nt5.domain_uuid;
response_5_ex.forest = response->data.nt5.forest;
response_5_ex.dns_domain = response->data.nt5.dns_domain;
response_5_ex.pdc_dns_name = response->data.nt5.pdc_dns_name;
response_5_ex.sockaddr.pdc_ip = response->data.nt5.pdc_ip;
response_5_ex.server_type = response->data.nt5.server_type;
response_5_ex.nt_version = response->data.nt5.nt_version;
response_5_ex.lmnt_token = response->data.nt5.lmnt_token;
response_5_ex.lm20_token = response->data.nt5.lm20_token;
response->ntver = NETLOGON_NT_VERSION_5EX;
response->data.nt5_ex = response_5_ex;
break;
case NETLOGON_NT_VERSION_1:
ZERO_STRUCT(response_5_ex);
response_5_ex.command = response->data.nt4.command;
response_5_ex.pdc_name = response->data.nt4.pdc_name;
response_5_ex.user_name = response->data.nt4.user_name;
response_5_ex.domain_name = response->data.nt4.domain_name;
response_5_ex.nt_version = response->data.nt4.nt_version;
response_5_ex.lmnt_token = response->data.nt4.lmnt_token;
response_5_ex.lm20_token = response->data.nt4.lm20_token;
response->ntver = NETLOGON_NT_VERSION_5EX;
response->data.nt5_ex = response_5_ex;
break;
}
return;
}
NTSTATUS push_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
struct nbt_netlogon_response *response)
{
NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
enum ndr_err_code ndr_err;
switch (response->response_type) {
case NETLOGON_GET_PDC:
ndr_err = ndr_push_struct_blob(data, mem_ctx,
&response->data.get_pdc,
(ndr_push_flags_fn_t)ndr_push_nbt_netlogon_response_from_pdc);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
status = ndr_map_error2ntstatus(ndr_err);
DEBUG(0,("Failed to parse netlogon packet of length %d: %s\n",
(int)data->length, nt_errstr(status)));
if (DEBUGLVL(10)) {
file_save("netlogon.dat", data->data, data->length);
}
return status;
}
status = NT_STATUS_OK;
break;
case NETLOGON_SAMLOGON:
status = push_netlogon_samlogon_response(
data, mem_ctx,
&response->data.samlogon);
break;
case NETLOGON_RESPONSE2:
ndr_err = ndr_push_struct_blob(data, mem_ctx,
&response->data.response2,
(ndr_push_flags_fn_t)ndr_push_nbt_netlogon_response2);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
return ndr_map_error2ntstatus(ndr_err);
}
status = NT_STATUS_OK;
break;
}
return status;
}
NTSTATUS pull_nbt_netlogon_response(DATA_BLOB *data, TALLOC_CTX *mem_ctx,
struct nbt_netlogon_response *response)
{
NTSTATUS status = NT_STATUS_INVALID_NETWORK_RESPONSE;
enum netlogon_command command;
enum ndr_err_code ndr_err;
if (data->length < 4) {
return NT_STATUS_INVALID_NETWORK_RESPONSE;
}
command = SVAL(data->data, 0);
switch (command) {
case NETLOGON_RESPONSE_FROM_PDC:
ndr_err = ndr_pull_struct_blob_all(data, mem_ctx,
&response->data.get_pdc,
(ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_response_from_pdc);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
status = ndr_map_error2ntstatus(ndr_err);
DEBUG(0,("Failed to parse netlogon packet of length %d: %s\n",
(int)data->length, nt_errstr(status)));
if (DEBUGLVL(10)) {
file_save("netlogon.dat", data->data, data->length);
}
return status;
}
status = NT_STATUS_OK;
response->response_type = NETLOGON_GET_PDC;
break;
case LOGON_RESPONSE2:
ndr_err = ndr_pull_struct_blob(data, mem_ctx, &response->data.response2,
(ndr_pull_flags_fn_t)ndr_pull_nbt_netlogon_response2);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
return ndr_map_error2ntstatus(ndr_err);
}
status = NT_STATUS_OK;
response->response_type = NETLOGON_RESPONSE2;
break;
case LOGON_SAM_LOGON_RESPONSE:
case LOGON_SAM_LOGON_PAUSE_RESPONSE:
case LOGON_SAM_LOGON_USER_UNKNOWN:
case LOGON_SAM_LOGON_RESPONSE_EX:
case LOGON_SAM_LOGON_PAUSE_RESPONSE_EX:
case LOGON_SAM_LOGON_USER_UNKNOWN_EX:
status = pull_netlogon_samlogon_response(
data, mem_ctx,
&response->data.samlogon);
response->response_type = NETLOGON_SAMLOGON;
break;
/* These levels are queries, not responses */
case LOGON_PRIMARY_QUERY:
case LOGON_REQUEST:
case NETLOGON_ANNOUNCE_UAS:
case LOGON_SAM_LOGON_REQUEST:
status = NT_STATUS_INVALID_NETWORK_RESPONSE;
}
return status;
}