net_vampire: add basic libnet_dssync() infrastructure.

Guenther
(This used to be commit 9486e532da602da587769d4ff8a1a2825e541a30)

1 files changed, 353 insertions, 0 deletions

diff --git a/source3/libnet/libnet_dssync.c b/source3/libnet/libnet_dssync.c
new file mode 100644
index 0000000000..63a5c8bef1
--- /dev/null
+++ b/source3/libnet/libnet_dssync.c
@@ -0,0 +1,353 @@
+/*
+   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 <http://www.gnu.org/licenses/>.
+*/
+
+
+#include "includes.h"
+#include "libnet/libnet_dssync.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 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.u1			= 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);
+	}
+
+	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)) {
+		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);
+
+	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_process(TALLOC_CTX *mem_ctx,
+				      struct dssync_context *ctx)
+{
+	NTSTATUS status;
+	WERROR werr;
+
+	int32_t level = 8;
+	int32_t level_out = 0;
+	union drsuapi_DsGetNCChangesRequest req;
+	union drsuapi_DsGetNCChangesCtr ctr;
+	struct drsuapi_DsReplicaObjectIdentifier nc;
+	struct dom_sid null_sid;
+
+	struct drsuapi_DsGetNCChangesCtr1 *ctr1 = NULL;
+	struct drsuapi_DsGetNCChangesCtr6 *ctr6 = NULL;
+	int32_t out_level = 0;
+	int y;
+
+	ZERO_STRUCT(null_sid);
+	ZERO_STRUCT(req);
+
+	nc.dn = ctx->nc_dn;
+	nc.guid = GUID_zero();
+	nc.sid = null_sid;
+
+	req.req8.naming_context		= &nc;
+	req.req8.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;
+	req.req8.max_object_count	= 402;
+	req.req8.max_ndr_size		= 402116;
+
+	for (y=0; ;y++) {
+
+		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));
+		}
+
+		status = rpccli_drsuapi_DsGetNCChanges(ctx->cli, mem_ctx,
+						       &ctx->bind_handle,
+						       level,
+						       &req,
+						       &level_out,
+						       &ctr,
+						       &werr);
+		if (!NT_STATUS_IS_OK(status)) {
+			werr = ntstatus_to_werror(status);
+			goto out;
+		}
+
+		if (!W_ERROR_IS_OK(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;
+		}
+
+		status = cli_get_session_key(ctx->cli, &ctx->session_key);
+		if (!NT_STATUS_IS_OK(status)) {
+			return status;
+		}
+
+		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));
+
+			if (ctx->processing_fn) {
+				status = ctx->processing_fn(mem_ctx,
+							    ctr1->first_object,
+							    ctx);
+				if (!NT_STATUS_IS_OK(status)) {
+					goto out;
+				}
+			}
+
+			if (ctr1->new_highwatermark.tmp_highest_usn > ctr1->new_highwatermark.highest_usn) {
+				req.req5.highwatermark = ctr1->new_highwatermark;
+				continue;
+			}
+		}
+
+		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 == 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));
+
+			if (ctx->processing_fn) {
+				status = ctx->processing_fn(mem_ctx,
+							    ctr6->first_object,
+							    ctx);
+				if (!NT_STATUS_IS_OK(status)) {
+					goto out;
+				}
+			}
+
+			if (ctr6->new_highwatermark.tmp_highest_usn > ctr6->new_highwatermark.highest_usn) {
+				req.req8.highwatermark = ctr6->new_highwatermark;
+				continue;
+			}
+		}
+
+		break;
+	}
+
+ 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;
+}