/*
Unix SMB/CIFS implementation.
Copyright (C) Stefan (metze) Metzmacher 2005
Copyright (C) Guenther Deschner 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 .
*/
#include "includes.h"
#include "libnet/libnet.h"
/****************************************************************
****************************************************************/
static int libnet_dssync_free_context(struct dssync_context *ctx)
{
if (!ctx) {
return 0;
}
if (is_valid_policy_hnd(&ctx->bind_handle) && ctx->cli) {
rpccli_drsuapi_DsUnbind(ctx->cli, ctx, &ctx->bind_handle, NULL);
}
return 0;
}
/****************************************************************
****************************************************************/
NTSTATUS libnet_dssync_init_context(TALLOC_CTX *mem_ctx,
struct dssync_context **ctx_p)
{
struct dssync_context *ctx;
ctx = TALLOC_ZERO_P(mem_ctx, struct dssync_context);
NT_STATUS_HAVE_NO_MEMORY(ctx);
talloc_set_destructor(ctx, libnet_dssync_free_context);
*ctx_p = ctx;
return NT_STATUS_OK;
}
/****************************************************************
****************************************************************/
static DATA_BLOB *decrypt_attr_val(TALLOC_CTX *mem_ctx,
DATA_BLOB *session_key,
uint32_t rid,
enum drsuapi_DsAttributeId id,
DATA_BLOB *raw_data)
{
bool rcrypt = false;
DATA_BLOB out_data;
ZERO_STRUCT(out_data);
switch (id) {
case DRSUAPI_ATTRIBUTE_dBCSPwd:
case DRSUAPI_ATTRIBUTE_unicodePwd:
case DRSUAPI_ATTRIBUTE_ntPwdHistory:
case DRSUAPI_ATTRIBUTE_lmPwdHistory:
rcrypt = true;
break;
case DRSUAPI_ATTRIBUTE_supplementalCredentials:
case DRSUAPI_ATTRIBUTE_priorValue:
case DRSUAPI_ATTRIBUTE_currentValue:
case DRSUAPI_ATTRIBUTE_trustAuthOutgoing:
case DRSUAPI_ATTRIBUTE_trustAuthIncoming:
case DRSUAPI_ATTRIBUTE_initialAuthOutgoing:
case DRSUAPI_ATTRIBUTE_initialAuthIncoming:
break;
default:
return raw_data;
}
out_data = decrypt_drsuapi_blob(mem_ctx, session_key, rcrypt,
rid, raw_data);
if (out_data.length) {
return (DATA_BLOB *)talloc_memdup(mem_ctx, &out_data, sizeof(DATA_BLOB));
}
return raw_data;
}
/****************************************************************
****************************************************************/
static void parse_obj_identifier(struct drsuapi_DsReplicaObjectIdentifier *id,
uint32_t *rid)
{
if (!id || !rid) {
return;
}
*rid = 0;
if (id->sid.num_auths > 0) {
*rid = id->sid.sub_auths[id->sid.num_auths - 1];
}
}
/****************************************************************
****************************************************************/
static void parse_obj_attribute(TALLOC_CTX *mem_ctx,
DATA_BLOB *session_key,
uint32_t rid,
struct drsuapi_DsReplicaAttribute *attr)
{
int i = 0;
for (i=0; ivalue_ctr.num_values; i++) {
DATA_BLOB *plain_data = NULL;
plain_data = decrypt_attr_val(mem_ctx,
session_key,
rid,
attr->attid,
attr->value_ctr.values[i].blob);
attr->value_ctr.values[i].blob = plain_data;
}
}
/****************************************************************
****************************************************************/
static void libnet_dssync_decrypt_attributes(TALLOC_CTX *mem_ctx,
DATA_BLOB *session_key,
struct drsuapi_DsReplicaObjectListItemEx *cur)
{
for (; cur; cur = cur->next_object) {
uint32_t i;
uint32_t rid = 0;
parse_obj_identifier(cur->object.identifier, &rid);
for (i=0; i < cur->object.attribute_ctr.num_attributes; i++) {
struct drsuapi_DsReplicaAttribute *attr;
attr = &cur->object.attribute_ctr.attributes[i];
if (attr->value_ctr.num_values < 1) {
continue;
}
if (!attr->value_ctr.values[0].blob) {
continue;
}
parse_obj_attribute(mem_ctx,
session_key,
rid,
attr);
}
}
}
/****************************************************************
****************************************************************/
static NTSTATUS libnet_dssync_bind(TALLOC_CTX *mem_ctx,
struct dssync_context *ctx)
{
NTSTATUS status;
WERROR werr;
struct GUID bind_guid;
struct drsuapi_DsBindInfoCtr bind_info;
struct drsuapi_DsBindInfo28 info28;
ZERO_STRUCT(info28);
GUID_from_string(DRSUAPI_DS_BIND_GUID, &bind_guid);
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_BASE;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7;
info28.supported_extensions |= DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT;
info28.site_guid = GUID_zero();
info28.pid = 508;
info28.repl_epoch = 0;
bind_info.length = 28;
bind_info.info.info28 = info28;
status = rpccli_drsuapi_DsBind(ctx->cli, mem_ctx,
&bind_guid,
&bind_info,
&ctx->bind_handle,
&werr);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (!W_ERROR_IS_OK(werr)) {
return werror_to_ntstatus(werr);
}
ZERO_STRUCT(ctx->remote_info28);
switch (bind_info.length) {
case 24: {
struct drsuapi_DsBindInfo24 *info24;
info24 = &bind_info.info.info24;
ctx->remote_info28.site_guid = info24->site_guid;
ctx->remote_info28.supported_extensions = info24->supported_extensions;
ctx->remote_info28.pid = info24->pid;
ctx->remote_info28.repl_epoch = 0;
break;
}
case 28:
ctx->remote_info28 = bind_info.info.info28;
break;
case 48: {
struct drsuapi_DsBindInfo48 *info48;
info48 = &bind_info.info.info48;
ctx->remote_info28.site_guid = info48->site_guid;
ctx->remote_info28.supported_extensions = info48->supported_extensions;
ctx->remote_info28.pid = info48->pid;
ctx->remote_info28.repl_epoch = info48->repl_epoch;
break;
}
default:
DEBUG(1, ("Warning: invalid info length in bind info: %d\n",
bind_info.length));
break;
}
return status;
}
/****************************************************************
****************************************************************/
static NTSTATUS libnet_dssync_lookup_nc(TALLOC_CTX *mem_ctx,
struct dssync_context *ctx)
{
NTSTATUS status;
WERROR werr;
int32_t level = 1;
union drsuapi_DsNameRequest req;
int32_t level_out;
struct drsuapi_DsNameString names[1];
union drsuapi_DsNameCtr ctr;
names[0].str = talloc_asprintf(mem_ctx, "%s\\", ctx->domain_name);
NT_STATUS_HAVE_NO_MEMORY(names[0].str);
req.req1.codepage = 1252; /* german */
req.req1.language = 0x00000407; /* german */
req.req1.count = 1;
req.req1.names = names;
req.req1.format_flags = DRSUAPI_DS_NAME_FLAG_NO_FLAGS;
req.req1.format_offered = DRSUAPI_DS_NAME_FORMAT_UKNOWN;
req.req1.format_desired = DRSUAPI_DS_NAME_FORMAT_FQDN_1779;
status = rpccli_drsuapi_DsCrackNames(ctx->cli, mem_ctx,
&ctx->bind_handle,
level,
&req,
&level_out,
&ctr,
&werr);
if (!NT_STATUS_IS_OK(status)) {
ctx->error_message = talloc_asprintf(mem_ctx,
"Failed to lookup DN for domain name: %s",
get_friendly_werror_msg(werr));
return status;
}
if (!W_ERROR_IS_OK(werr)) {
return werror_to_ntstatus(werr);
}
if (ctr.ctr1->count != 1) {
return NT_STATUS_UNSUCCESSFUL;
}
if (ctr.ctr1->array[0].status != DRSUAPI_DS_NAME_STATUS_OK) {
return NT_STATUS_UNSUCCESSFUL;
}
ctx->nc_dn = talloc_strdup(mem_ctx, ctr.ctr1->array[0].result_name);
NT_STATUS_HAVE_NO_MEMORY(ctx->nc_dn);
if (!ctx->dns_domain_name) {
ctx->dns_domain_name = talloc_strdup_upper(mem_ctx,
ctr.ctr1->array[0].dns_domain_name);
NT_STATUS_HAVE_NO_MEMORY(ctx->dns_domain_name);
}
return NT_STATUS_OK;
}
/****************************************************************
****************************************************************/
static NTSTATUS libnet_dssync_init(TALLOC_CTX *mem_ctx,
struct dssync_context *ctx)
{
NTSTATUS status;
status = libnet_dssync_bind(mem_ctx, ctx);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (!ctx->nc_dn) {
status = libnet_dssync_lookup_nc(mem_ctx, ctx);
}
return status;
}
/****************************************************************
****************************************************************/
static NTSTATUS libnet_dssync_build_request(TALLOC_CTX *mem_ctx,
struct dssync_context *ctx,
const char *dn,
struct replUpToDateVectorBlob *utdv,
int32_t *plevel,
union drsuapi_DsGetNCChangesRequest *preq)
{
NTSTATUS status;
uint32_t count;
int32_t level;
union drsuapi_DsGetNCChangesRequest req;
struct dom_sid null_sid;
enum drsuapi_DsExtendedOperation extended_op;
struct drsuapi_DsReplicaObjectIdentifier *nc = NULL;
struct drsuapi_DsReplicaCursorCtrEx *cursors = NULL;
uint32_t replica_flags = DRSUAPI_DS_REPLICA_NEIGHBOUR_WRITEABLE |
DRSUAPI_DS_REPLICA_NEIGHBOUR_SYNC_ON_STARTUP |
DRSUAPI_DS_REPLICA_NEIGHBOUR_DO_SCHEDULED_SYNCS |
DRSUAPI_DS_REPLICA_NEIGHBOUR_RETURN_OBJECT_PARENTS |
DRSUAPI_DS_REPLICA_NEIGHBOUR_NEVER_SYNCED;
ZERO_STRUCT(null_sid);
ZERO_STRUCT(req);
if (ctx->remote_info28.supported_extensions
& DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8)
{
level = 8;
} else {
level = 5;
}
nc = TALLOC_ZERO_P(mem_ctx, struct drsuapi_DsReplicaObjectIdentifier);
if (!nc) {
status = NT_STATUS_NO_MEMORY;
goto fail;
}
nc->dn = dn;
nc->guid = GUID_zero();
nc->sid = null_sid;
if (!ctx->single && !ctx->repl_nodiff && utdv) {
cursors = TALLOC_ZERO_P(mem_ctx,
struct drsuapi_DsReplicaCursorCtrEx);
if (!cursors) {
status = NT_STATUS_NO_MEMORY;
goto fail;
}
switch (utdv->version) {
case 1:
cursors->count = utdv->ctr.ctr1.count;
cursors->cursors = utdv->ctr.ctr1.cursors;
break;
case 2:
cursors->count = utdv->ctr.ctr2.count;
cursors->cursors = talloc_array(cursors,
struct drsuapi_DsReplicaCursor,
cursors->count);
if (!cursors->cursors) {
status = NT_STATUS_NO_MEMORY;
goto fail;
}
for (count = 0; count < cursors->count; count++) {
cursors->cursors[count].source_dsa_invocation_id =
utdv->ctr.ctr2.cursors[count].source_dsa_invocation_id;
cursors->cursors[count].highest_usn =
utdv->ctr.ctr2.cursors[count].highest_usn;
}
break;
}
}
if (ctx->single) {
extended_op = DRSUAPI_EXOP_REPL_OBJ;
} else {
extended_op = DRSUAPI_EXOP_NONE;
}
if (level == 8) {
req.req8.naming_context = nc;
req.req8.replica_flags = replica_flags;
req.req8.max_object_count = 402;
req.req8.max_ndr_size = 402116;
req.req8.uptodateness_vector = cursors;
req.req8.extended_op = extended_op;
} else if (level == 5) {
req.req5.naming_context = nc;
req.req5.replica_flags = replica_flags;
req.req5.max_object_count = 402;
req.req5.max_ndr_size = 402116;
req.req5.uptodateness_vector = cursors;
req.req5.extended_op = extended_op;
} else {
status = NT_STATUS_INVALID_PARAMETER;
goto fail;
}
if (plevel) {
*plevel = level;
}
if (preq) {
*preq = req;
}
return NT_STATUS_OK;
fail:
TALLOC_FREE(nc);
TALLOC_FREE(cursors);
return status;
}
static NTSTATUS libnet_dssync_getncchanges(TALLOC_CTX *mem_ctx,
struct dssync_context *ctx,
int32_t level,
union drsuapi_DsGetNCChangesRequest *req,
struct replUpToDateVectorBlob **pnew_utdv)
{
NTSTATUS status;
WERROR werr;
union drsuapi_DsGetNCChangesCtr ctr;
struct drsuapi_DsGetNCChangesCtr1 *ctr1 = NULL;
struct drsuapi_DsGetNCChangesCtr6 *ctr6 = NULL;
struct replUpToDateVectorBlob *new_utdv = NULL;
int32_t level_out = 0;
int32_t out_level = 0;
int y;
bool last_query;
if (!ctx->single) {
new_utdv = TALLOC_ZERO_P(mem_ctx, struct replUpToDateVectorBlob);
if (!new_utdv) {
status = NT_STATUS_NO_MEMORY;
goto out;
}
}
for (y=0, last_query = false; !last_query; y++) {
struct drsuapi_DsReplicaObjectListItemEx *first_object;
struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr;
if (level == 8) {
DEBUG(1,("start[%d] tmp_higest_usn: %llu , highest_usn: %llu\n",y,
(long long)req->req8.highwatermark.tmp_highest_usn,
(long long)req->req8.highwatermark.highest_usn));
} else if (level == 5) {
DEBUG(1,("start[%d] tmp_higest_usn: %llu , highest_usn: %llu\n",y,
(long long)req->req5.highwatermark.tmp_highest_usn,
(long long)req->req5.highwatermark.highest_usn));
}
status = rpccli_drsuapi_DsGetNCChanges(ctx->cli, mem_ctx,
&ctx->bind_handle,
level,
req,
&level_out,
&ctr,
&werr);
if (!NT_STATUS_IS_OK(status)) {
ctx->error_message = talloc_asprintf(mem_ctx,
"Failed to get NC Changes: %s",
get_friendly_werror_msg(werr));
goto out;
}
if (!W_ERROR_IS_OK(werr)) {
status = werror_to_ntstatus(werr);
goto out;
}
if (level_out == 1) {
out_level = 1;
ctr1 = &ctr.ctr1;
} else if (level_out == 2) {
out_level = 1;
ctr1 = ctr.ctr2.ctr.mszip1.ctr1;
} else if (level_out == 6) {
out_level = 6;
ctr6 = &ctr.ctr6;
} else if (level_out == 7
&& ctr.ctr7.level == 6
&& ctr.ctr7.type == DRSUAPI_COMPRESSION_TYPE_MSZIP) {
out_level = 6;
ctr6 = ctr.ctr7.ctr.mszip6.ctr6;
}
if (out_level == 1) {
DEBUG(1,("end[%d] tmp_highest_usn: %llu , highest_usn: %llu\n",y,
(long long)ctr1->new_highwatermark.tmp_highest_usn,
(long long)ctr1->new_highwatermark.highest_usn));
first_object = ctr1->first_object;
mapping_ctr = &ctr1->mapping_ctr;
if (ctr1->more_data) {
req->req5.highwatermark = ctr1->new_highwatermark;
} else {
last_query = true;
if (ctr1->uptodateness_vector && !ctx->single) {
new_utdv->version = 1;
new_utdv->ctr.ctr1.count =
ctr1->uptodateness_vector->count;
new_utdv->ctr.ctr1.cursors =
ctr1->uptodateness_vector->cursors;
}
}
} else if (out_level == 6) {
DEBUG(1,("end[%d] tmp_highest_usn: %llu , highest_usn: %llu\n",y,
(long long)ctr6->new_highwatermark.tmp_highest_usn,
(long long)ctr6->new_highwatermark.highest_usn));
first_object = ctr6->first_object;
mapping_ctr = &ctr6->mapping_ctr;
if (ctr6->more_data) {
req->req8.highwatermark = ctr6->new_highwatermark;
} else {
last_query = true;
if (ctr6->uptodateness_vector && !ctx->single) {
new_utdv->version = 2;
new_utdv->ctr.ctr2.count =
ctr6->uptodateness_vector->count;
new_utdv->ctr.ctr2.cursors =
ctr6->uptodateness_vector->cursors;
}
}
}
status = cli_get_session_key(mem_ctx, ctx->cli, &ctx->session_key);
if (!NT_STATUS_IS_OK(status)) {
ctx->error_message = talloc_asprintf(mem_ctx,
"Failed to get Session Key: %s",
nt_errstr(status));
goto out;
}
libnet_dssync_decrypt_attributes(mem_ctx,
&ctx->session_key,
first_object);
if (ctx->ops->process_objects) {
status = ctx->ops->process_objects(ctx, mem_ctx,
first_object,
mapping_ctr);
if (!NT_STATUS_IS_OK(status)) {
ctx->error_message = talloc_asprintf(mem_ctx,
"Failed to call processing function: %s",
nt_errstr(status));
goto out;
}
}
}
*pnew_utdv = new_utdv;
out:
return status;
}
static NTSTATUS libnet_dssync_process(TALLOC_CTX *mem_ctx,
struct dssync_context *ctx)
{
NTSTATUS status;
int32_t level;
union drsuapi_DsGetNCChangesRequest req;
struct replUpToDateVectorBlob *old_utdv = NULL;
struct replUpToDateVectorBlob *pnew_utdv = NULL;
const char **dns;
uint32_t dn_count;
uint32_t count;
status = ctx->ops->startup(ctx, mem_ctx, &old_utdv);
if (!NT_STATUS_IS_OK(status)) {
ctx->error_message = talloc_asprintf(mem_ctx,
"Failed to call startup operation: %s",
nt_errstr(status));
goto out;
}
if (ctx->single && ctx->object_dns) {
dns = ctx->object_dns;
dn_count = ctx->object_count;
} else {
dns = &ctx->nc_dn;
dn_count = 1;
}
for (count=0; count < dn_count; count++) {
status = libnet_dssync_build_request(mem_ctx, ctx,
dns[count],
old_utdv, &level,
&req);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
status = libnet_dssync_getncchanges(mem_ctx, ctx, level, &req,
&pnew_utdv);
if (!NT_STATUS_IS_OK(status)) {
ctx->error_message = talloc_asprintf(mem_ctx,
"Failed to call DsGetNCCHanges: %s",
nt_errstr(status));
goto out;
}
}
status = ctx->ops->finish(ctx, mem_ctx, pnew_utdv);
if (!NT_STATUS_IS_OK(status)) {
ctx->error_message = talloc_asprintf(mem_ctx,
"Failed to call finishing operation: %s",
nt_errstr(status));
goto out;
}
out:
return status;
}
/****************************************************************
****************************************************************/
NTSTATUS libnet_dssync(TALLOC_CTX *mem_ctx,
struct dssync_context *ctx)
{
NTSTATUS status;
status = libnet_dssync_init(mem_ctx, ctx);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
status = libnet_dssync_process(mem_ctx, ctx);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
out:
return status;
}