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/*
Unix SMB/CIFS implementation.
Authentication utility functions
Copyright (C) Sumit Bose 2010
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 "../librpc/gen_ndr/ndr_drsblobs.h"
#include "../librpc/gen_ndr/ndr_lsa.h"
#include "rpc_client/util_lsarpc.h"
static NTSTATUS ai_array_2_trust_domain_info_buffer(TALLOC_CTX *mem_ctx,
uint32_t count,
struct AuthenticationInformationArray *ai,
struct lsa_TrustDomainInfoBuffer **_b)
{
NTSTATUS status;
struct lsa_TrustDomainInfoBuffer *b;
int i;
b = talloc_array(mem_ctx, struct lsa_TrustDomainInfoBuffer, count);
if (b == NULL) {
return NT_STATUS_NO_MEMORY;
}
for(i = 0; i < count; i++) {
size_t size = 0;
b[i].last_update_time = ai->array[i].LastUpdateTime;
b[i].AuthType = ai->array[i].AuthType;
switch(ai->array[i].AuthType) {
case TRUST_AUTH_TYPE_NONE:
b[i].data.size = 0;
b[i].data.data = NULL;
break;
case TRUST_AUTH_TYPE_NT4OWF:
if (ai->array[i].AuthInfo.nt4owf.size != 16) {
status = NT_STATUS_INVALID_PARAMETER;
goto fail;
}
b[i].data.data = talloc_memdup(b,
&ai->array[i].AuthInfo.nt4owf.password.hash,
16);
if (b[i].data.data == NULL) {
status = NT_STATUS_NO_MEMORY;
goto fail;
}
break;
case TRUST_AUTH_TYPE_CLEAR:
if (!convert_string_talloc(b,
CH_UTF16LE, CH_UNIX,
ai->array[i].AuthInfo.clear.password,
ai->array[i].AuthInfo.clear.size,
&b[i].data.data,
&size)) {
status = NT_STATUS_INVALID_PARAMETER;
goto fail;
}
b[i].data.size = size;
break;
case TRUST_AUTH_TYPE_VERSION:
if (ai->array[i].AuthInfo.version.size != 4) {
status = NT_STATUS_INVALID_PARAMETER;
goto fail;
}
b[i].data.size = 4;
b[i].data.data = talloc_memdup(b,
&ai->array[i].AuthInfo.version.version, 4);
if (b[i].data.data == NULL) {
status = NT_STATUS_NO_MEMORY;
goto fail;
}
break;
default:
status = NT_STATUS_INVALID_PARAMETER;
goto fail;
}
}
*_b = b;
return NT_STATUS_OK;
fail:
talloc_free(b);
return status;
}
static NTSTATUS trustauth_inout_blob_2_auth_info(TALLOC_CTX *mem_ctx,
DATA_BLOB *inout_blob,
uint32_t *count,
struct lsa_TrustDomainInfoBuffer **current,
struct lsa_TrustDomainInfoBuffer **previous)
{
NTSTATUS status;
struct trustAuthInOutBlob iopw;
enum ndr_err_code ndr_err;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(mem_ctx);
if (tmp_ctx == NULL) {
return NT_STATUS_NO_MEMORY;
}
ndr_err = ndr_pull_struct_blob(inout_blob, tmp_ctx, &iopw,
(ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
status = NT_STATUS_INVALID_PARAMETER;
goto done;
}
*count = iopw.count;
status = ai_array_2_trust_domain_info_buffer(mem_ctx, iopw.count,
&iopw.current, current);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
if (iopw.previous.count > 0) {
status = ai_array_2_trust_domain_info_buffer(mem_ctx, iopw.count,
&iopw.previous, previous);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
} else {
*previous = NULL;
}
status = NT_STATUS_OK;
done:
talloc_free(tmp_ctx);
return status;
}
NTSTATUS auth_blob_2_auth_info(TALLOC_CTX *mem_ctx,
DATA_BLOB incoming, DATA_BLOB outgoing,
struct lsa_TrustDomainInfoAuthInfo *auth_info)
{
NTSTATUS status;
if (incoming.length != 0) {
status = trustauth_inout_blob_2_auth_info(mem_ctx,
&incoming,
&auth_info->incoming_count,
&auth_info->incoming_current_auth_info,
&auth_info->incoming_previous_auth_info);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
} else {
auth_info->incoming_count = 0;
auth_info->incoming_current_auth_info = NULL;
auth_info->incoming_previous_auth_info = NULL;
}
if (outgoing.length != 0) {
status = trustauth_inout_blob_2_auth_info(mem_ctx,
&outgoing,
&auth_info->outgoing_count,
&auth_info->outgoing_current_auth_info,
&auth_info->outgoing_previous_auth_info);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
} else {
auth_info->outgoing_count = 0;
auth_info->outgoing_current_auth_info = NULL;
auth_info->outgoing_previous_auth_info = NULL;
}
return NT_STATUS_OK;
}
static NTSTATUS trust_domain_info_buffer_2_ai_array(TALLOC_CTX *mem_ctx,
uint32_t count,
struct lsa_TrustDomainInfoBuffer *b,
struct AuthenticationInformationArray *ai)
{
NTSTATUS status;
int i;
ai->count = count;
ai->array = talloc_zero_array(mem_ctx, struct AuthenticationInformation,
count);
if (ai->array == NULL) {
return NT_STATUS_NO_MEMORY;
}
for(i = 0; i < count; i++) {
size_t size = 0;
ai->array[i].LastUpdateTime = b[i].last_update_time;
ai->array[i].AuthType = b[i].AuthType;
switch(ai->array[i].AuthType) {
case TRUST_AUTH_TYPE_NONE:
ai->array[i].AuthInfo.none.size = 0;
break;
case TRUST_AUTH_TYPE_NT4OWF:
if (b[i].data.size != 16) {
status = NT_STATUS_INVALID_PARAMETER;
goto fail;
}
memcpy(&ai->array[i].AuthInfo.nt4owf.password.hash,
b[i].data.data, 16);
break;
case TRUST_AUTH_TYPE_CLEAR:
if (!convert_string_talloc(ai->array,
CH_UNIX, CH_UTF16,
b[i].data.data,
b[i].data.size,
&ai->array[i].AuthInfo.clear.password,
&size)) {
status = NT_STATUS_INVALID_PARAMETER;
goto fail;
}
ai->array[i].AuthInfo.clear.size = size;
break;
case TRUST_AUTH_TYPE_VERSION:
if (b[i].data.size != 4) {
status = NT_STATUS_INVALID_PARAMETER;
goto fail;
}
ai->array[i].AuthInfo.version.size = 4;
memcpy(&ai->array[i].AuthInfo.version.version,
b[i].data.data, 4);
break;
default:
status = NT_STATUS_INVALID_PARAMETER;
goto fail;
}
}
return NT_STATUS_OK;
fail:
talloc_free(ai->array);
return status;
}
static NTSTATUS auth_info_2_trustauth_inout_blob(TALLOC_CTX *mem_ctx,
uint32_t count,
struct lsa_TrustDomainInfoBuffer *current,
struct lsa_TrustDomainInfoBuffer *previous,
DATA_BLOB *inout_blob)
{
NTSTATUS status;
struct trustAuthInOutBlob *iopw;
enum ndr_err_code ndr_err;
iopw = talloc_zero(mem_ctx, struct trustAuthInOutBlob);
if (iopw == NULL) {
return NT_STATUS_NO_MEMORY;
}
iopw->count = count;
status = trust_domain_info_buffer_2_ai_array(iopw, count, current,
&iopw->current);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
if (previous != NULL) {
status = trust_domain_info_buffer_2_ai_array(iopw, count,
previous,
&iopw->previous);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
} else {
iopw->previous.count = 0;
iopw->previous.array = NULL;
}
ndr_err = ndr_push_struct_blob(inout_blob, mem_ctx,
iopw,
(ndr_push_flags_fn_t)ndr_push_trustAuthInOutBlob);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
return NT_STATUS_INVALID_PARAMETER;
}
status = NT_STATUS_OK;
done:
talloc_free(iopw);
return status;
}
NTSTATUS auth_info_2_auth_blob(TALLOC_CTX *mem_ctx,
struct lsa_TrustDomainInfoAuthInfo *auth_info,
DATA_BLOB *incoming, DATA_BLOB *outgoing)
{
NTSTATUS status;
if (auth_info->incoming_count == 0) {
incoming->length = 0;
incoming->data = NULL;
} else {
status = auth_info_2_trustauth_inout_blob(mem_ctx,
auth_info->incoming_count,
auth_info->incoming_current_auth_info,
auth_info->incoming_previous_auth_info,
incoming);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
}
if (auth_info->outgoing_count == 0) {
outgoing->length = 0;
outgoing->data = NULL;
} else {
status = auth_info_2_trustauth_inout_blob(mem_ctx,
auth_info->outgoing_count,
auth_info->outgoing_current_auth_info,
auth_info->outgoing_previous_auth_info,
outgoing);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
}
return NT_STATUS_OK;
}
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