s4 net: rename to samba-tool in order to not clash with s3 net

Autobuild-User: Kai Blin <kai@samba.org>
Autobuild-Date: Thu Oct 28 07:25:16 UTC 2010 on sn-devel-104

6 files changed, 1611 insertions, 0 deletions

diff --git a/source4/samba_tool/drs/drs.c b/source4/samba_tool/drs/drs.c
new file mode 100644
index 0000000000..78f8c144c2
--- /dev/null
+++ b/source4/samba_tool/drs/drs.c
@@ -0,0 +1,361 @@
+/*
+   Samba Unix/Linux SMB client library
+
+   Implements functions offered by repadmin.exe tool under Windows
+
+   Copyright (C) Kamen Mazdrashki <kamen.mazdrashki@postpath.com> 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 "samba_tool/samba_tool.h"
+#include "librpc/gen_ndr/ndr_drsuapi_c.h"
+#include "samba_tool/drs/drs.h"
+#include "lib/ldb/include/ldb.h"
+#include "ldb_wrap.h"
+#include "system/filesys.h"
+
+
+/**
+ * 'samba-tool drs' supported sub-commands
+ */
+static const struct net_functable net_drs_functable[] = {
+	{ "bind", "Display replication features for a domain controller\n", net_drs_bind_cmd, net_drs_bind_usage },
+	{ "kcc", "Forces the KCC to recalculate replication topology for a specified domain controller\n",
+			net_drs_kcc_cmd, net_drs_kcc_usage },
+	{ "replicate", "Triggers replication event for the specified naming context between the source and destination domain controllers.\n",
+			net_drs_replicate_cmd, net_drs_replicate_usage },
+	{ "showrepl", "Displays the replication partners for each directory partition on the specified domain controller.\n",
+			net_drs_showrepl_cmd, net_drs_showrepl_usage },
+	{ NULL, NULL }
+};
+
+/**
+ * 'samba-tool drs' entry point
+ */
+int net_drs(struct net_context *ctx, int argc, const char **argv)
+{
+	return net_run_function(ctx, argc, argv, net_drs_functable, net_drs_usage);
+}
+
+/**
+ * 'samba-tool drs' usage message
+ */
+int net_drs_usage(struct net_context *ctx, int argc, const char **argv)
+{
+	d_printf("samba-tool drs <command> [options]\n");
+	d_printf("\n");
+	d_printf("Currently implemented commands:\n");
+	d_printf("  bind      - Display DC replication features\n");
+	d_printf("  kcc       - Forces the KCC to recalculate replication topology for a specified domain controller\n");
+	d_printf("  replicate - Triggers replication event for the specified naming context between the source and destination domain controllers.\n");
+	d_printf("  showrepl  - Displays the replication partners for each directory partition on the specified domain controller.\n");
+	return 0;
+}
+
+/**
+ * Create drsuapi connection to remote DC
+ * and fill-in DC capabilities
+ */
+static bool net_drs_DsBind(struct net_drs_context *drs_ctx, struct net_drs_connection *conn)
+{
+	NTSTATUS status;
+	struct GUID bind_guid;
+	struct drsuapi_DsBind req;
+	struct drsuapi_DsBindInfoCtr in_bind_ctr;
+	union drsuapi_DsBindInfo *bind_info;
+
+	SMB_ASSERT(conn->binding != NULL);
+
+	status = dcerpc_pipe_connect_b(conn,
+				       &conn->drs_pipe,
+				       conn->binding,
+				       &ndr_table_drsuapi,
+				       drs_ctx->net_ctx->credentials,
+				       drs_ctx->net_ctx->event_ctx,
+				       drs_ctx->net_ctx->lp_ctx);
+	if (!NT_STATUS_IS_OK(status)) {
+		d_printf("Failed to connect to server: %s\n", nt_errstr(status));
+		return false;
+	}
+	conn->drs_handle = conn->drs_pipe->binding_handle;
+
+	ZERO_STRUCT(in_bind_ctr);
+	in_bind_ctr.length = 48;
+	in_bind_ctr.info.info48.pid = (uint32_t)getpid();
+	GUID_from_string(DRSUAPI_DS_BIND_GUID, &bind_guid);
+	req.in.bind_guid = &bind_guid;
+	req.in.bind_info = &in_bind_ctr;
+	req.out.bind_handle = &conn->bind_handle;
+
+	status = dcerpc_drsuapi_DsBind_r(conn->drs_handle, conn, &req);
+	if (!NT_STATUS_IS_OK(status)) {
+		const char *errstr = nt_errstr(status);
+		d_printf("dcerpc_drsuapi_DsBind failed - %s\n", errstr);
+		return false;
+	} else if (!W_ERROR_IS_OK(req.out.result)) {
+		d_printf("DsBind failed - %s\n", win_errstr(req.out.result));
+		return false;
+	}
+
+	/* fill-in remote DC capabilities */
+	ZERO_STRUCT(conn->info48);
+	bind_info = &req.out.bind_info->info;
+	conn->bind_info_len = req.out.bind_info->length;
+	switch (conn->bind_info_len) {
+	case 48:
+		conn->info48.supported_extensions_ext = bind_info->info48.supported_extensions_ext;
+		conn->info48.config_dn_guid = bind_info->info48.config_dn_guid;
+	case 28:
+		conn->info48.repl_epoch = bind_info->info28.repl_epoch;
+	case 24:
+		conn->info48.supported_extensions = bind_info->info24.supported_extensions;
+		conn->info48.site_guid = bind_info->info24.site_guid;
+		conn->info48.pid = bind_info->info24.pid;
+		break;
+	default:
+		d_printf("Error: server returned BindInfo length %d", req.out.bind_info->length);
+		return false;
+	}
+
+	return true;
+}
+
+/**
+ * Close DRSUAPI connection to remote DC
+ */
+static bool net_drs_DsUnbind(struct net_drs_connection *conn)
+{
+	struct drsuapi_DsUnbind r;
+	struct policy_handle bind_handle;
+
+	SMB_ASSERT(conn->drs_pipe);
+
+	ZERO_STRUCT(r);
+	r.out.bind_handle = &bind_handle;
+
+	r.in.bind_handle = &conn->bind_handle;
+	dcerpc_drsuapi_DsUnbind_r(conn->drs_handle, conn, &r);
+
+	/* free dcerpc pipe in case we get called more than once */
+	talloc_free(conn->drs_pipe);
+	conn->drs_pipe = NULL;
+	conn->drs_handle = NULL;
+
+	return true;
+}
+
+/**
+ * Destroy drsuapi connection
+ */
+static int net_drs_connection_destructor(struct net_drs_connection *conn)
+{
+	if (conn->drs_pipe) {
+		net_drs_DsUnbind(conn);
+	}
+	return 0;
+}
+
+/**
+ * Create DRSUAPI connection to target DC
+ * @return ptr to net_drs_connection or NULL on failure
+ */
+struct net_drs_connection * net_drs_connect_dc(struct net_drs_context *drs_ctx, const char *dc_name)
+{
+	struct net_drs_connection *conn = NULL;
+
+	conn = talloc_zero(drs_ctx, struct net_drs_connection);
+	NET_DRS_NOMEM_GOTO(conn, failed);
+
+	/* init binding */
+	conn->binding = talloc_zero(conn, struct dcerpc_binding);
+	conn->binding->transport = NCACN_IP_TCP;
+	conn->binding->flags = drs_ctx->drs_conn->binding->flags;
+	conn->binding->host = talloc_strdup(conn, dc_name);
+	conn->binding->target_hostname = conn->binding->host;
+
+	if (!net_drs_DsBind(drs_ctx, conn)) {
+		goto failed;
+	}
+
+	talloc_set_destructor(conn, net_drs_connection_destructor);
+
+	return conn;
+
+failed:
+	talloc_free(conn);
+	return NULL;
+}
+
+/**
+ * Open secured LDAP connection to remote DC
+ */
+static bool net_drs_ldap_connect(struct net_drs_context *drs_ctx)
+{
+	char *url;
+	bool bret = true;
+
+	url = talloc_asprintf(drs_ctx, "ldap://%s/", drs_ctx->dc_name);
+	if (!url) {
+		d_printf(__location__ ": Have no memory");
+		return false;
+	}
+
+	drs_ctx->ldap.ldb = ldb_wrap_connect(drs_ctx,
+	                                     drs_ctx->net_ctx->event_ctx, drs_ctx->net_ctx->lp_ctx,
+	                                     url,
+	                                     NULL,
+	                                     drs_ctx->net_ctx->credentials,
+	                                     0);
+	if (drs_ctx->ldap.ldb == NULL) {
+		d_printf("Unable to connect to LDAP %s", url);
+		bret = false;
+	}
+
+	talloc_free(url);
+
+	return bret;
+}
+
+/**
+ * fetch RootDSE record
+ */
+static bool net_drs_ldap_rootdse(struct net_drs_context *drs_ctx)
+{
+	int ret;
+	struct ldb_result *r;
+	struct ldb_dn *basedn;
+	static const char *attrs[] = {
+		"*",
+		NULL
+	};
+
+	SMB_ASSERT(drs_ctx->ldap.ldb != NULL);
+
+	basedn = ldb_dn_new(drs_ctx, drs_ctx->ldap.ldb, NULL);
+	if (!basedn) {
+		d_printf(__location__ ": No memory");
+		return false;
+	}
+
+	ret = ldb_search(drs_ctx->ldap.ldb, drs_ctx, &r,
+	                 basedn, LDB_SCOPE_BASE, attrs,
+			 "(objectClass=*)");
+	talloc_free(basedn);
+	if (ret != LDB_SUCCESS) {
+		d_printf("RootDSE search failed: %s", ldb_errstring(drs_ctx->ldap.ldb));
+		talloc_free(r);
+		return false;
+	} else if (r->count != 1) {
+		d_printf("RootDSE search returned more than one record!");
+		talloc_free(r);
+		return false;
+	}
+
+	drs_ctx->ldap.rootdse = r->msgs[0];
+
+	return true;
+}
+
+/**
+ * parses binding from command line
+ * and gets target DC name
+ */
+static bool net_drs_parse_binding(struct net_drs_context *drs_ctx, const char *dc_binding)
+{
+	NTSTATUS status;
+	struct dcerpc_binding *b;
+
+	status = dcerpc_parse_binding(drs_ctx->drs_conn, dc_binding, &b);
+	if (!NT_STATUS_IS_OK(status)) {
+		d_printf("Bad binding supplied %s\n", dc_binding);
+		return false;
+	}
+
+	b->transport = NCACN_IP_TCP;
+	b->flags |= DCERPC_SIGN | DCERPC_SEAL;
+
+	/* cache target DC name */
+	drs_ctx->dc_name = b->target_hostname;
+
+	drs_ctx->drs_conn->binding = b;
+
+	return true;
+}
+
+/**
+ * Free DRSUAPI connection upon net_drs_context
+ * destruction
+ */
+static int net_drs_context_destructor(struct net_drs_context *drs_ctx)
+{
+	if (drs_ctx->drs_conn && drs_ctx->drs_conn->drs_pipe) {
+		net_drs_DsUnbind(drs_ctx->drs_conn);
+	}
+	return 0;
+}
+
+/**
+ * Create net_drs_context context to be used
+ * by 'samba-tool drs' sub-commands
+ */
+bool net_drs_create_context(struct net_context *net_ctx,
+			    const char *dc_binding,
+			    struct net_drs_context **_drs_ctx)
+{
+	struct net_drs_context *drs_ctx;
+
+	drs_ctx = talloc_zero(net_ctx, struct net_drs_context);
+	if (!drs_ctx) {
+		d_printf(__location__ ": No memory");
+		return false;
+	}
+
+	drs_ctx->drs_conn = talloc_zero(drs_ctx, struct net_drs_connection);
+	if (!drs_ctx->drs_conn) {
+		d_printf(__location__ ": No memory");
+		return false;
+	}
+
+	drs_ctx->net_ctx = net_ctx;
+
+	if (!net_drs_parse_binding(drs_ctx, dc_binding)) {
+		goto failed;
+	}
+
+	/* LDAP connect */
+	if (!net_drs_ldap_connect(drs_ctx)) {
+		goto failed;
+	}
+	/* fetch RootDSE */
+	if (!net_drs_ldap_rootdse(drs_ctx)) {
+		goto failed;
+	}
+
+	/* DRSUAPI connection */
+	if (!net_drs_DsBind(drs_ctx, drs_ctx->drs_conn)) {
+		goto failed;
+	}
+
+	/* set destructor to free any open connections */
+	talloc_set_destructor(drs_ctx, net_drs_context_destructor);
+
+	*_drs_ctx = drs_ctx;
+	return true;
+
+failed:
+	talloc_free(drs_ctx);
+	return false;
+}
diff --git a/source4/samba_tool/drs/drs.h b/source4/samba_tool/drs/drs.h
new file mode 100644
index 0000000000..1e4cccc538
--- /dev/null
+++ b/source4/samba_tool/drs/drs.h
@@ -0,0 +1,87 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Implements functions offered by repadmin.exe tool under Windows
+
+   Copyright (C) Kamen Mazdrashki <kamen.mazdrashki@postpath.com> 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/>.
+*/
+
+#ifndef SAMBA_TOOL_DRS_H_
+#define SAMBA_TOOL_DRS_H_
+
+#include "librpc/gen_ndr/ndr_drsuapi_c.h"
+
+
+/**
+ * Check for critical error
+ */
+#define NET_DRS_CHECK_GOTO(_condition,_label,_msg) \
+	do { \
+	if (!(_condition)) { \
+		d_printf(__location__": "#_condition" - %s\n", _msg); \
+		goto _label; \
+	} \
+	} while (0)
+
+/**
+ * check allocated memory macro
+ */
+#define NET_DRS_NOMEM_GOTO(_ptr,_label) \
+	NET_DRS_CHECK_GOTO(_ptr, _label, "Not enough memory!")
+
+
+/**
+ * DRSUAPI binding context
+ */
+struct net_drs_connection {
+	/* DRSUAPI connection context */
+	struct dcerpc_binding 	*binding;
+	struct dcerpc_pipe 	*drs_pipe;
+	struct dcerpc_binding_handle *drs_handle;
+	struct policy_handle 	bind_handle;
+
+	/* length of bind info structure returned by remote DC
+	 * 'net drs bind' command make use of this value */
+	uint32_t bind_info_len;
+
+	/* remote DC DRSUAPI capabilities */
+	struct drsuapi_DsBindInfo48 info48;
+};
+
+
+/**
+ * net drs commands context
+ */
+struct net_drs_context {
+	struct net_context 	*net_ctx;
+
+	/* remote DC name supplied from command line */
+	const char 		*dc_name;
+
+	/* DRSUAPI connection to target DC */
+	struct net_drs_connection *drs_conn;
+
+	/* LDAP connection to DC */
+	struct net_drs_ldap {
+		struct ldb_context 	 *ldb;
+		const struct ldb_message *rootdse;
+	} ldap;
+};
+
+
+#include "samba_tool/drs/drs_proto.h"
+
+#endif /* SAMBA_TOOL_DRS_H_ */
diff --git a/source4/samba_tool/drs/drs_bind.c b/source4/samba_tool/drs/drs_bind.c
new file mode 100644
index 0000000000..cc2ad87df4
--- /dev/null
+++ b/source4/samba_tool/drs/drs_bind.c
@@ -0,0 +1,136 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Implements functions offered by repadmin.exe tool under Windows
+
+   Copyright (C) Kamen Mazdrashki <kamen.mazdrashki@postpath.com> 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 "samba_tool/samba_tool.h"
+#include "samba_tool/drs/drs.h"
+
+
+#define DEFINE_FLAG(_flag, _win_name) {_flag, #_flag, _win_name}
+
+struct drs_extension_flag {
+	uint32_t 	flag;
+	const char 	*samba_name;
+	const char 	*win_name;
+};
+
+static const struct drs_extension_flag drs_repl_flags[] = {
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_BASE, 			"DRS_EXT_BASE"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION, 	"DRS_EXT_ASYNCREPL"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI, 		"DRS_EXT_REMOVEAPI"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2,		"DRS_EXT_MOVEREQ_V2"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS,	"DRS_EXT_GETCHG_DEFLATE"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1,		"DRS_EXT_DCINFO_V1"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION, "DRS_EXT_RESTORE_USN_OPTIMIZATION"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY,		"DRS_EXT_ADDENTRY"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE,		"DRS_EXT_KCC_EXECUTE"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2,		"DRS_EXT_ADDENTRY_V2"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION, "DRS_EXT_LINKED_VALUE_REPLICATION"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2,		"DRS_EXT_DCINFO_V2"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD, "DRS_EXT_INSTANCE_TYPE_NOT_REQ_ON_MOD"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND,		"DRS_EXT_CRYPTO_BIND"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO,		"DRS_EXT_GET_REPL_INFO"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION,	"DRS_EXT_STRONG_ENCRYPTION"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01,		"DRS_EXT_DCINFO_VFFFFFFFF"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP,	"DRS_EXT_TRANSITIVE_MEMBERSHIP"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY,	"DRS_EXT_ADD_SID_HISTORY"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3,		"DRS_EXT_POST_BETA3"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V5,		"DRS_EXT_GETCHGREQ_V5"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2,	"DRS_EXT_GETMEMBERSHIPS2"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6,		"DRS_EXT_GETCHGREQ_V6"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS,		"DRS_EXT_NONDOMAIN_NCS"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8,		"DRS_EXT_GETCHGREQ_V8"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5,		"DRS_EXT_GETCHGREPLY_V5"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6,		"DRS_EXT_GETCHGREPLY_V6"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3,	"DRS_EXT_WHISTLER_BETA3"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7,		"DRS_EXT_WHISTLER_BETA3"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT,		"DRS_EXT_WHISTLER_BETA3"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_XPRESS_COMPRESS,	"DRS_EXT_W2K3_DEFLATE"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V10,		"DRS_EXT_GETCHGREQ_V10"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_RESERVED_PART2,		"DRS_EXT_RESERVED_FOR_WIN2K_OR_DOTNET_PART2"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_RESERVED_PART3,		"DRS_EXT_RESERVED_FOR_WIN2K_OR_DOTNET_PART3")
+};
+
+static const struct drs_extension_flag drs_repl_flags_ex[] = {
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_ADAM,			"DRS_EXT_ADAM"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_LH_BETA2,		"DRS_EXT_LH_BETA2"),
+	DEFINE_FLAG(DRSUAPI_SUPPORTED_EXTENSION_RECYCLE_BIN,		"DRS_EXT_RECYCLE_BIN")
+};
+
+
+
+int net_drs_bind_cmd(struct net_context *ctx, int argc, const char **argv)
+{
+	int i;
+	struct net_drs_context *drs_ctx;
+	struct drsuapi_DsBindInfo48 *info48;
+
+	/* only one arg expected */
+	if (argc != 1) {
+		return net_drs_bind_usage(ctx, argc, argv);
+	}
+
+	if (!net_drs_create_context(ctx, argv[0], &drs_ctx)) {
+		return -1;
+	}
+
+	d_printf("Bind to %s succeeded.\n", drs_ctx->dc_name);
+	d_printf("Extensions supported (cb=%d):\n", drs_ctx->drs_conn->bind_info_len);
+
+	/* Print standard flags */
+	info48 = &drs_ctx->drs_conn->info48;
+	for (i = 0; i < ARRAY_SIZE(drs_repl_flags); i++) {
+		const struct drs_extension_flag *repl_flag = &drs_repl_flags[i];
+		d_printf("  %-60s: %-3s (%s)\n", repl_flag->samba_name,
+		         info48->supported_extensions & repl_flag->flag ? "Yes" : "No",
+		         repl_flag->win_name);
+	}
+
+	/* Print Extended flags */
+	d_printf("\n");
+	d_printf("Extended Extensions supported:\n");
+	for (i = 0; i < ARRAY_SIZE(drs_repl_flags_ex); i++) {
+		const struct drs_extension_flag *repl_flag_ex = &drs_repl_flags_ex[i];
+		d_printf("  %-60s: %-3s (%s)\n", repl_flag_ex->samba_name,
+			 info48->supported_extensions_ext & repl_flag_ex->flag ? "Yes" : "No",
+			 repl_flag_ex->win_name);
+	}
+
+	/* print additional info */
+	d_printf("\n");
+	d_printf("Site GUID:   %s\n", GUID_string(drs_ctx, &info48->site_guid));
+	d_printf("Repl epoch:  %d\n", info48->repl_epoch);
+	if (GUID_all_zero(&info48->config_dn_guid)) {
+		d_printf("Forest GUID: (none)\n");
+	} else {
+		d_printf("Forest GUID: %s\n", GUID_string(drs_ctx, &info48->config_dn_guid));
+	}
+
+	talloc_free(drs_ctx);
+
+	return 0;
+}
+
+int net_drs_bind_usage(struct net_context *ctx, int argc, const char **argv)
+{
+	d_printf("samba-tool drs bind <DC_NAME>\n");
+	return 0;
+}
diff --git a/source4/samba_tool/drs/drs_kcc.c b/source4/samba_tool/drs/drs_kcc.c
new file mode 100644
index 0000000000..fa8ea407df
--- /dev/null
+++ b/source4/samba_tool/drs/drs_kcc.c
@@ -0,0 +1,170 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Implements functions offered by repadmin.exe tool under Windows
+
+   Copyright (C) Kamen Mazdrashki <kamen.mazdrashki@postpath.com> 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 "samba_tool/samba_tool.h"
+#include "samba_tool/drs/drs.h"
+#include "lib/ldb/include/ldb.h"
+
+
+static bool net_drs_kcc_site_info(struct net_drs_context *drs_ctx,
+				  const char **site_name,
+				  uint32_t *site_options)
+{
+	struct ldb_dn *dn;
+	const struct ldb_val *ldb_val;
+	TALLOC_CTX *mem_ctx;
+	int ret;
+	struct ldb_result *ldb_res;
+	static const char *attrs[] = {
+		"options",
+		"whenChanged",
+		NULL
+	};
+
+	mem_ctx = talloc_new(drs_ctx);
+
+	/* get dsServiceName, which is NTDS Settings
+	 * object for the server
+	 * e.g.: CN=NTDS Settings,CN=<DC_NAME>,CN=Servers,CN=<SITE_NAME>,CN=Sites,<CONFIG> */
+	dn = ldb_msg_find_attr_as_dn(drs_ctx->ldap.ldb, mem_ctx, drs_ctx->ldap.rootdse, "dsServiceName");
+	if (!dn) {
+		d_printf("No dsServiceName value in RootDSE!\n");
+		goto failed;
+	}
+
+	/* work out site name */
+	if (!ldb_dn_remove_child_components(dn, 3)) {
+		d_printf("Failed to find Site DN.\n");
+		goto failed;
+	}
+
+	ldb_val = ldb_dn_get_rdn_val(dn);
+	if (!ldb_val) {
+		d_printf("Failed to get site name.\n");
+		goto failed;
+	}
+	*site_name = talloc_strndup(drs_ctx, (const char*)ldb_val->data, ldb_val->length);
+
+	/* get 'NTDS Site Settings' */
+	if (!ldb_dn_add_child_fmt(dn, "CN=NTDS Site Settings")) {
+		d_printf("Failed to create NTDS Site Settings DN.\n");
+		goto failed;
+	}
+
+	ret = ldb_search(drs_ctx->ldap.ldb, mem_ctx, &ldb_res,
+	                     dn, LDB_SCOPE_BASE,  attrs, "(objectClass=*)");
+	if (ret != LDB_SUCCESS) {
+		d_printf("Failed to get Site object\n");
+		goto failed;
+	}
+	if (ldb_res->count != 1) {
+		d_printf("Error: returned %d messages for Site object.\n", ldb_res->count);
+		goto failed;
+	}
+	*site_options = ldb_msg_find_attr_as_uint(ldb_res->msgs[0], "options", 0);
+
+	talloc_free(mem_ctx);
+	return true;
+
+failed:
+	talloc_free(mem_ctx);
+	return false;
+}
+
+/**
+ * 'samba-tool drs kcc' command entry point
+ */
+int net_drs_kcc_cmd(struct net_context *ctx, int argc, const char **argv)
+{
+	NTSTATUS status;
+	struct net_drs_context *drs_ctx;
+	struct net_drs_connection *drs_conn;
+	struct drsuapi_DsBindInfo48 *info48;
+	struct drsuapi_DsExecuteKCC req;
+	union drsuapi_DsExecuteKCCRequest kcc_req;
+	const char *site_name;
+	uint32_t site_options;
+
+	/* only one arg expected */
+	if (argc != 1) {
+		return net_drs_kcc_usage(ctx, argc, argv);
+	}
+
+	if (!net_drs_create_context(ctx, argv[0], &drs_ctx)) {
+		return -1;
+	}
+	drs_conn = drs_ctx->drs_conn;
+	info48 = &drs_conn->info48;
+
+	/* check if target DC supports ExecuteKCC */
+	if (!(info48->supported_extensions & DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE)) {
+		d_printf("%s does not support EXECUTE_KCC extension.\n", drs_ctx->dc_name);
+		goto failed;
+	}
+
+	/* gather some Site info */
+	if (!net_drs_kcc_site_info(drs_ctx, &site_name, &site_options)) {
+		goto failed;
+	}
+
+	d_printf("%s\n", site_name);
+	if (site_options) {
+		/* TODO: print meaningfull site options here */
+		d_printf("Current Site Options: 0x%X\n", site_options);
+	} else {
+		d_printf("Current Site Options: (none)\n");
+	}
+
+	/* execute KCC */
+	ZERO_STRUCT(req);
+	ZERO_STRUCT(kcc_req);
+	req.in.bind_handle = &drs_conn->bind_handle;
+	req.in.level = 1;
+	req.in.req = &kcc_req;
+	status = dcerpc_drsuapi_DsExecuteKCC_r(drs_conn->drs_handle, drs_ctx, &req);
+	if (!NT_STATUS_IS_OK(status)) {
+		const char *errstr = nt_errstr(status);
+		d_printf("dcerpc_drsuapi_DsExecuteKCC failed - %s.\n", errstr);
+		goto failed;
+	} else if (!W_ERROR_IS_OK(req.out.result)) {
+		d_printf("DsExecuteKCC failed - %s.\n", win_errstr(req.out.result));
+		goto failed;
+	}
+
+	d_printf("Consistency check on %s successful.\n", drs_ctx->dc_name);
+
+	talloc_free(drs_ctx);
+	return 0;
+
+failed:
+	talloc_free(drs_ctx);
+	return -1;
+}
+
+/**
+ * 'samba-tool drs kcc' usage
+ */
+int net_drs_kcc_usage(struct net_context *ctx, int argc, const char **argv)
+{
+	d_printf("samba-tool drs kcc <DC_NAME>\n");
+	return 0;
+}
diff --git a/source4/samba_tool/drs/drs_replicate.c b/source4/samba_tool/drs/drs_replicate.c
new file mode 100644
index 0000000000..36e0792e95
--- /dev/null
+++ b/source4/samba_tool/drs/drs_replicate.c
@@ -0,0 +1,252 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Implements functions offered by repadmin.exe tool under Windows
+
+   Copyright (C) Kamen Mazdrashki <kamen.mazdrashki@postpath.com> 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 "samba_tool/samba_tool.h"
+#include "samba_tool/drs/drs.h"
+#include "lib/ldb/include/ldb.h"
+#include "dsdb/samdb/samdb.h"
+
+
+/**
+ * Figure out what is the NDTS Settings objectGUID
+ * when DC_NAME is given
+ */
+static struct ldb_dn *
+net_drs_server_dn_from_dc_name(struct net_drs_context *drs_ctx,
+                               const char *dc_name)
+{
+	int ldb_err;
+	char *filter;
+	struct ldb_dn *dn;
+	struct ldb_dn *server_dn = NULL;
+	struct ldb_result *ldb_res;
+	static const char *attrs[] = {
+		"objectGUID",
+		"name",
+		"dNSHostName",
+		NULL
+	};
+	TALLOC_CTX *mem_ctx;
+
+	mem_ctx = talloc_new(drs_ctx);
+
+	/* Make DN for Sites container */
+	dn = ldb_msg_find_attr_as_dn(drs_ctx->ldap.ldb, mem_ctx, drs_ctx->ldap.rootdse, "dsServiceName");
+	NET_DRS_CHECK_GOTO(dn != NULL, failed, "RootDSE doesn't have dsServiceName!?\n");
+	if (!ldb_dn_remove_child_components(dn, 4)) {
+		d_printf("Failed to make DN for Sites container.\n");
+		goto failed;
+	}
+
+	/* search for Server in Sites container */
+	filter = talloc_asprintf(mem_ctx,
+	                         "(&(objectCategory=server)(|(name=%1$s)(dNSHostName=%1$s)))",
+	                         dc_name);
+	ldb_err = ldb_search(drs_ctx->ldap.ldb, mem_ctx, &ldb_res,
+	                     dn, LDB_SCOPE_SUBTREE, attrs,
+	                     "%s",
+	                     filter);
+	if (ldb_err != LDB_SUCCESS) {
+		d_printf("ldb_seach(base=%s, filter=%s) failed: %d (%s).\n",
+		         ldb_dn_get_linearized(dn),
+		         filter,
+		         ldb_err, ldb_errstring(drs_ctx->ldap.ldb));
+		goto failed;
+	}
+	if (ldb_res->count != 1) {
+		d_printf("ldb_search(base=%s, filter=%s) returned %d records, expected 1!\n",
+		         ldb_dn_get_linearized(dn),
+		         filter,
+		         ldb_res->count);
+		goto failed;
+	}
+
+	server_dn = talloc_steal(drs_ctx, ldb_res->msgs[0]->dn);
+
+failed:
+	talloc_free(mem_ctx);
+	return server_dn;
+}
+
+
+/**
+ * Figure out what is the NDTS Settings objectGUID
+ * when DC_NAME is given
+ */
+static bool net_drs_ntds_guid_from_dc_name(struct net_drs_context *drs_ctx,
+					   const char *dc_name,
+					   struct GUID *_ntds_guid)
+{
+	int ldb_err;
+	struct ldb_dn *server_dn;
+	struct ldb_result *ldb_res;
+	static const char *attrs[] = {
+		"objectGUID",
+		"msDS-portLDAP",
+		"name",
+		"objectCategory",
+		NULL
+	};
+	TALLOC_CTX *mem_ctx;
+
+	mem_ctx = talloc_new(drs_ctx);
+
+	/* resolve Server_DN for dc_name */
+	server_dn = net_drs_server_dn_from_dc_name(drs_ctx, dc_name);
+	if (!server_dn) {
+		d_printf("DSA object for %s could not be found.\n", dc_name);
+		goto failed;
+	}
+
+	/* move server_dn mem to local context */
+	server_dn = talloc_steal(mem_ctx, server_dn);
+
+	/* search ntdsDsa object under Server container */
+	ldb_err = ldb_search(drs_ctx->ldap.ldb, mem_ctx, &ldb_res,
+	                     server_dn, LDB_SCOPE_ONELEVEL, attrs,
+	                     "%s", "(|(objectCategory=nTDSDSA)(objectCategory=nTDSDSARO))");
+	if (ldb_err != LDB_SUCCESS) {
+		d_printf("ldb_seach() failed with err: %d (%s).\n",
+		         ldb_err, ldb_errstring(drs_ctx->ldap.ldb));
+		goto failed;
+	}
+	if (ldb_res->count != 1) {
+		d_printf("ldb_search() should return exactly one record!\n");
+		goto failed;
+	}
+
+	*_ntds_guid =  samdb_result_guid(ldb_res->msgs[0], "objectGUID");
+
+	talloc_free(mem_ctx);
+	return true;
+
+failed:
+	talloc_free(mem_ctx);
+	return false;
+}
+
+/**
+ * Sends DsReplicaSync to dc_name_dest to
+ * replicate naming context nc_dn_str from
+ * server with ntds_guid_src GUID
+ */
+static bool net_drs_replicate_sync_nc(struct net_drs_context *drs_ctx,
+				      struct GUID ntds_guid_src,
+				      const char *nc_dn_str,
+				      uint32_t options)
+{
+	NTSTATUS status;
+	struct net_drs_connection *drs_conn;
+	struct drsuapi_DsReplicaSync req;
+	union drsuapi_DsReplicaSyncRequest sync_req;
+	struct drsuapi_DsReplicaObjectIdentifier nc;
+
+	/* use already opened connection */
+	drs_conn = drs_ctx->drs_conn;
+
+	/* construct naming context object */
+	ZERO_STRUCT(nc);
+	nc.dn = nc_dn_str;
+
+	/* construct request object for DsReplicaSync */
+	req.in.bind_handle 			= &drs_conn->bind_handle;
+	req.in.level 				= 1;
+	req.in.req  				= &sync_req;
+	req.in.req->req1.naming_context 	= &nc;
+	req.in.req->req1.options 		= options;
+	req.in.req->req1.source_dsa_dns 	= NULL;
+	req.in.req->req1.source_dsa_guid 	= ntds_guid_src;
+
+	/* send DsReplicaSync request */
+	status = dcerpc_drsuapi_DsReplicaSync_r(drs_conn->drs_handle, drs_ctx, &req);
+	if (!NT_STATUS_IS_OK(status)) {
+		const char *errstr = nt_errstr(status);
+		d_printf("DsReplicaSync RPC failed - %s.\n", errstr);
+		return false;
+	} else if (!W_ERROR_IS_OK(req.out.result)) {
+		d_printf("DsReplicaSync failed - %s (nc=[%s], dsa_guid=[%s]).\n",
+		         win_errstr(req.out.result),
+		         nc.dn, GUID_string(drs_ctx, &ntds_guid_src));
+		return false;
+	}
+
+	return true;
+}
+
+/**
+ * 'samba-tool drs replicate' command entry point
+ */
+int net_drs_replicate_cmd(struct net_context *ctx, int argc, const char **argv)
+{
+	bool bret;
+	struct net_drs_context *drs_ctx;
+	struct GUID ntds_guid_src;
+	const char *dc_name_dest;
+	const char *dc_name_src;
+	const char *nc_dn_str;
+
+	/* only one arg expected */
+	if (argc != 3) {
+		return net_drs_replicate_usage(ctx, argc, argv);
+	}
+
+	dc_name_dest = argv[0];
+	dc_name_src = argv[1];
+	nc_dn_str = argv[2];
+
+	if (!net_drs_create_context(ctx, dc_name_dest, &drs_ctx)) {
+		return -1;
+	}
+
+	/* Resolve source DC_NAME to its NDTS Settings GUID */
+	if (!net_drs_ntds_guid_from_dc_name(drs_ctx, dc_name_src, &ntds_guid_src)) {
+		d_printf("Error: DSA object for %s could not be found.\n", dc_name_src);
+		goto failed;
+	}
+
+	/* Synchronize given Naming Context */
+	bret = net_drs_replicate_sync_nc(drs_ctx,
+	                                 ntds_guid_src, nc_dn_str,
+	                                 DRSUAPI_DRS_WRIT_REP);
+	if (!bret) {
+		goto failed;
+	}
+
+	d_printf("Replicate from %s to %s was successful.\n", dc_name_src, drs_ctx->dc_name);
+
+	talloc_free(drs_ctx);
+	return 0;
+
+failed:
+	d_printf("Replicate terminated with errors.\n");
+	talloc_free(drs_ctx);
+	return -1;
+}
+
+/**
+ * 'samba-tool drs replicate' usage
+ */
+int net_drs_replicate_usage(struct net_context *ctx, int argc, const char **argv)
+{
+	d_printf("samba-tool drs replicate <Dest_DC_NAME> <Src_DC_NAME> <Naming Context>\n");
+	return 0;
+}
diff --git a/source4/samba_tool/drs/drs_showrepl.c b/source4/samba_tool/drs/drs_showrepl.c
new file mode 100644
index 0000000000..f399097008
--- /dev/null
+++ b/source4/samba_tool/drs/drs_showrepl.c
@@ -0,0 +1,605 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Implements functions offered by repadmin.exe tool under Windows
+
+   Copyright (C) Kamen Mazdrashki <kamen.mazdrashki@postpath.com> 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 "samba_tool/samba_tool.h"
+#include "samba_tool/drs/drs.h"
+#include "lib/ldb/include/ldb.h"
+#include "dsdb/samdb/samdb.h"
+#include "lib/util/util_ldb.h"
+
+
+/**
+ * Parses NTDS Settings DN to find out:
+ *  - DC name
+ *  - Site name
+ *  - Domain DNS name
+ */
+static bool net_drs_parse_ntds_dn(struct ldb_dn *ntds_dn,
+				  TALLOC_CTX *mem_ctx,
+				  const char **_dc_name,
+				  const char **_site_name,
+				  const char **_domain_dns_name)
+{
+	struct ldb_dn *dn = NULL;
+	const struct ldb_val *val;
+
+	dn = ldb_dn_copy(mem_ctx, ntds_dn);
+	NET_DRS_NOMEM_GOTO(dn, failed);
+
+	/* remove NTDS Settings component */
+	ldb_dn_remove_child_components(dn, 1);
+	if (_dc_name) {
+		val = ldb_dn_get_rdn_val(dn);
+		*_dc_name = talloc_strdup(mem_ctx, (const char *)val->data);
+	}
+
+	/* remove DC and Servers components */
+	ldb_dn_remove_child_components(dn, 2);
+	if (_site_name) {
+		val = ldb_dn_get_rdn_val(dn);
+		*_site_name = talloc_strdup(mem_ctx, (const char *)val->data);
+	}
+
+	if (_domain_dns_name) {
+		char *pstr;
+		char *dns_name;
+
+		dns_name = ldb_dn_canonical_string(mem_ctx, dn);
+		NET_DRS_NOMEM_GOTO(dns_name, failed);
+
+		pstr = strchr(dns_name, '/');
+		if (pstr) {
+			*pstr = '\0';
+		}
+
+		*_domain_dns_name = dns_name;
+	}
+
+	talloc_free(dn);
+	return true;
+
+failed:
+	talloc_free(dn);
+	return false;
+}
+
+static char * net_drs_dc_canonical_string(struct ldb_dn *ntds_dn, TALLOC_CTX *mem_ctx)
+{
+	const char *dc_name;
+	const char *site_name;
+	char *canonical_name;
+
+	if (!net_drs_parse_ntds_dn(ntds_dn, mem_ctx, &dc_name, &site_name, NULL)) {
+		return NULL;
+	}
+
+	canonical_name = talloc_asprintf(mem_ctx, "%s\\%s", site_name, dc_name);
+
+	talloc_free(discard_const(dc_name));
+	talloc_free(discard_const(site_name));
+
+	return canonical_name;
+}
+
+/**
+ * Prints DC information for showrepl command
+ */
+static bool net_drs_showrepl_print_dc_info(struct net_drs_context *drs_ctx)
+{
+	int ret;
+	const char *dc_name;
+	const char *site_name;
+	struct ldb_dn *dn;
+	struct ldb_message **ntds_msgs;
+	struct ldb_message **site_msgs;
+	uint32_t options;
+	struct GUID guid;
+	TALLOC_CTX *mem_ctx;
+	const char *ntds_attr[] = {"options", "objectGuid", "invocationId", NULL};
+	const char *site_ntds_attr[] = {"options", "whenChanged", NULL};
+
+	mem_ctx = talloc_new(drs_ctx);
+
+	/* Get NTDS Settings DN string for the DC */
+	dn = samdb_result_dn(drs_ctx->ldap.ldb, mem_ctx,
+	                     drs_ctx->ldap.rootdse, "dsServiceName", NULL);
+	NET_DRS_CHECK_GOTO(dn, failed, "No dsServiceName value in RootDSE!\n");
+
+	/* parse NTDS Settings DN */
+	if (!net_drs_parse_ntds_dn(dn, mem_ctx, &dc_name, &site_name, NULL)) {
+		d_printf("Unexpected: Failed to parse %s DN!\n",
+		         ldb_dn_get_linearized(dn));
+		goto failed;
+	}
+
+	/* Query DC record for DSA's NTDS Settings DN */
+	ret = gendb_search_dn(drs_ctx->ldap.ldb, mem_ctx, dn, &ntds_msgs, ntds_attr);
+	if (ret != 1) {
+		d_printf("Error while fetching %s, Possible error: %s\n",
+		         ldb_dn_get_linearized(dn),
+		         ldb_errstring(drs_ctx->ldap.ldb));
+		goto failed;
+	}
+
+	/* find out NTDS Site Settings DN */
+	if (!ldb_dn_remove_child_components(dn, 3)) {
+		d_printf("Unexpected: ldb_dn_remove_child_components() failed!\n");
+		goto failed;
+	}
+	if (!ldb_dn_add_child_fmt(dn, "CN=%s", "NTDS Site Settings")) {
+		d_printf("Unexpected: ldb_dn_add_child_fmt() failed!\n");
+		goto failed;
+	}
+	/* Query Site record for DSA's NTDS Settings DN */
+	ret = gendb_search_dn(drs_ctx->ldap.ldb, mem_ctx, dn, &site_msgs, site_ntds_attr);
+	if (ret != 1) {
+		d_printf("Error while fetching %s, Possible error: %s\n",
+		         ldb_dn_get_linearized(dn),
+		         ldb_errstring(drs_ctx->ldap.ldb));
+		goto failed;
+	}
+
+	/* Site-name\DC-name */
+	d_printf("%s\\%s\n", site_name, dc_name);
+	/* DSA Options */
+	options = ldb_msg_find_attr_as_uint(ntds_msgs[0], "options", 0);
+	if (options) {
+		/* TODO: Print options as string in IS_GC... etc form */
+		d_printf("DSA Options: 0x%08X\n", options);
+	} else {
+		d_printf("DSA Options: (none)\n");
+	}
+	/* Site Options */
+	options = ldb_msg_find_attr_as_uint(site_msgs[0], "options", 0);
+	if (options) {
+		/* TODO: Print options in string */
+		d_printf("DSA Options: 0x%08X\n", options);
+	} else {
+		d_printf("Site Options: (none)\n");
+	}
+	/* DSA GUID */
+	guid = samdb_result_guid(ntds_msgs[0], "objectGUID");
+	d_printf("DSA object GUID: %s\n", GUID_string(mem_ctx, &guid));
+	/* DSA invocationId */
+	guid = samdb_result_guid(ntds_msgs[0], "invocationId");
+	d_printf("DSA invocationID: %s\n", GUID_string(mem_ctx, &guid));
+
+	talloc_free(mem_ctx);
+	return true;
+
+failed:
+	talloc_free(mem_ctx);
+	return false;
+}
+
+/**
+ * Convenience function to call DsReplicaGetInfo
+ */
+static bool net_drs_exec_DsReplicaGetInfo(struct net_drs_context *drs_ctx,
+					  enum drsuapi_DsReplicaInfoType info_type,
+					  union drsuapi_DsReplicaInfo *_replica_info)
+{
+	NTSTATUS status;
+	struct drsuapi_DsReplicaGetInfo r;
+	union drsuapi_DsReplicaGetInfoRequest req;
+	enum drsuapi_DsReplicaInfoType info_type_got;
+	struct net_drs_connection *drs_conn = drs_ctx->drs_conn;
+
+	ZERO_STRUCT(req);
+	req.req1.info_type = info_type;
+
+	r.in.bind_handle	= &drs_conn->bind_handle;
+	r.in.level		= 1;
+	r.in.req		= &req;
+	r.out.info		= _replica_info;
+	r.out.info_type		= &info_type_got;
+
+	status = dcerpc_drsuapi_DsReplicaGetInfo_r(drs_conn->drs_handle, drs_ctx, &r);
+	if (!NT_STATUS_IS_OK(status)) {
+		const char *errstr = nt_errstr(status);
+		d_printf("DsReplicaGetInfo failed - %s.\n", errstr);
+		return false;
+	} else if (!W_ERROR_IS_OK(r.out.result)) {
+		d_printf("DsReplicaGetInfo failed - %s.\n", win_errstr(r.out.result));
+		return false;
+	}
+
+	if (info_type != info_type_got) {
+		d_printf("DsReplicaGetInfo: Error requested info %d, got info %d.\n",
+		         info_type, info_type_got);
+		return false;
+	}
+
+	return true;
+}
+
+/**
+ * Return transport type string for given transport object DN.
+ * Currently always return 'RPC'.
+ *
+ * TODO: Implement getting transport type for all kind of transports
+ */
+static const char *
+net_drs_transport_type_str(struct net_drs_context *drs_ctx, const char *transport_obj_dn)
+{
+	return "RPC";
+}
+
+/**
+ * Prints most of the info we got about
+ * a replication partner
+ */
+static bool net_drs_showrepl_print_heighbor(struct net_drs_context *drs_ctx,
+					    struct drsuapi_DsReplicaNeighbour *neighbor)
+{
+	struct ldb_dn *ntds_dn;
+	TALLOC_CTX *mem_ctx;
+
+	mem_ctx = talloc_new(drs_ctx);
+
+	ntds_dn = ldb_dn_new(drs_ctx, drs_ctx->ldap.ldb, neighbor->source_dsa_obj_dn);
+	NET_DRS_NOMEM_GOTO(ntds_dn, failed);
+
+	d_printf("%s\n", neighbor->naming_context_dn);
+	/* TODO: Determine connection type */
+	d_printf("\t%s via %s\n",
+		 net_drs_dc_canonical_string(ntds_dn, mem_ctx),
+		 net_drs_transport_type_str(drs_ctx, neighbor->transport_obj_dn));
+	d_printf("\t\tDSA object GUID: %s\n", GUID_string(mem_ctx, &neighbor->source_dsa_obj_guid));
+	if (W_ERROR_IS_OK(neighbor->result_last_attempt)) {
+		d_printf("\t\tLast attempt @ %s was successful.\n",
+		         nt_time_string(mem_ctx, neighbor->last_attempt));
+	} else {
+		d_printf("\t\tLast attempt @ %s failed, result %d (%s):\n",
+		         nt_time_string(mem_ctx, neighbor->last_attempt),
+		         W_ERROR_V(neighbor->result_last_attempt),
+		         win_errstr(neighbor->result_last_attempt));
+		d_printf("\t\t\t%s\n", get_friendly_werror_msg(neighbor->result_last_attempt));
+	}
+	d_printf("\t\t%d consecutive failure(s).\n", neighbor->consecutive_sync_failures);
+	d_printf("\t\tLast success @ %s\n", nt_time_string(mem_ctx, neighbor->last_success));
+
+	talloc_free(mem_ctx);
+	return true;
+
+failed:
+	talloc_free(mem_ctx);
+	return false;
+}
+
+/**
+ * Prints list of all servers that target DC
+ * replicates from
+ */
+static bool net_drs_showrepl_print_inbound_neihbors(struct net_drs_context *drs_ctx)
+{
+	int i;
+	bool bret;
+	struct drsuapi_DsReplicaNeighbourCtr *reps_from;
+	union drsuapi_DsReplicaInfo replica_info;
+
+	d_printf("\n==== INBOUND NEIGHBORS ====\n");
+
+	bret = net_drs_exec_DsReplicaGetInfo(drs_ctx,
+	                                     DRSUAPI_DS_REPLICA_INFO_NEIGHBORS, &replica_info);
+	if (!bret) {
+		d_printf("DsReplicaGetInfo() failed for DRSUAPI_DS_REPLICA_INFO_KCC_DSA_CONNECT_FAILURES.\n");
+		return false;
+	}
+	reps_from = replica_info.neighbours;
+
+	for (i = 0; i < reps_from->count; i++) {
+		d_printf("\n");
+		net_drs_showrepl_print_heighbor(drs_ctx, &reps_from->array[i]);
+	}
+
+	return true;
+}
+
+/**
+ * Prints list of all servers that target DC
+ * notifies for changes
+ */
+static bool net_drs_showrepl_print_outbound_neihbors(struct net_drs_context *drs_ctx)
+{
+	int i;
+	bool bret;
+	struct drsuapi_DsReplicaNeighbourCtr *reps_to;
+	union drsuapi_DsReplicaInfo replica_info;
+
+	d_printf("\n==== OUTBOUND NEIGHBORS ====\n");
+
+	bret = net_drs_exec_DsReplicaGetInfo(drs_ctx,
+	                                     DRSUAPI_DS_REPLICA_INFO_REPSTO, &replica_info);
+	if (!bret) {
+		d_printf("DsReplicaGetInfo() failed for DRSUAPI_DS_REPLICA_INFO_KCC_DSA_CONNECT_FAILURES.\n");
+		return false;
+	}
+	reps_to = replica_info.repsto;
+
+	for (i = 0; i < reps_to->count; i++) {
+		d_printf("\n");
+		net_drs_showrepl_print_heighbor(drs_ctx, &reps_to->array[i]);
+	}
+
+	return true;
+}
+
+/**
+ * Prints all connections under
+ * NTDS Settings for target DC.
+ *
+ * NOTE: All connections are printed
+ * no matter what their status is
+ */
+static bool net_drs_showrepl_print_connection_objects(struct net_drs_context *drs_ctx)
+{
+	int i;
+	int conn_count;
+	struct ldb_message **conn_msgs;
+	struct ldb_dn *dn;
+	uint32_t options;
+	const char *dc_dns_name;
+	TALLOC_CTX *mem_ctx;
+	const char *conn_attr[] = {
+			"name",
+			"enabledConnection",
+			"fromServer",
+			"mS-DS-ReplicatesNCReason",
+			"options",
+			"schedule",
+			"transportType",
+			"whenChanged",
+			"whenCreated",
+			NULL
+	};
+
+	mem_ctx = talloc_new(drs_ctx);
+
+	d_printf("\n==== KCC CONNECTION OBJECTS ====\n");
+
+	/* Get NTDS Settings DN string for the DC */
+	dn = samdb_result_dn(drs_ctx->ldap.ldb, mem_ctx,
+	                     drs_ctx->ldap.rootdse, "dsServiceName", NULL);
+	NET_DRS_CHECK_GOTO(dn, failed, "No dsServiceName value in RootDSE!\n");
+
+	/* DNS host name for target DC */
+	dc_dns_name = ldb_msg_find_attr_as_string(drs_ctx->ldap.rootdse	, "dnsHostName", NULL);
+	NET_DRS_CHECK_GOTO(dc_dns_name, failed, "No dsServiceName value in dnsHostName!\n");
+
+	/* Enum. Connection objects under NTDS Settings */
+	conn_count = gendb_search(drs_ctx->ldap.ldb, mem_ctx, dn,
+	                          &conn_msgs, conn_attr, "(objectClass=nTDSConnection)");
+	if (conn_count == -1) {
+		d_printf("Error searching Connections for %s, Possible error: %s\n",
+		         ldb_dn_get_linearized(dn),
+		         ldb_errstring(drs_ctx->ldap.ldb));
+		goto failed;
+	}
+
+	for (i = 0; i < conn_count; i++) {
+		int k;
+		const char *transport_type;
+		struct ldb_message_element *msg_elem;
+		struct ldb_message *conn_msg = conn_msgs[i];
+
+		d_printf("Connection --\n");
+		d_printf("\tConnection name : %s\n",
+			 ldb_msg_find_attr_as_string(conn_msg, "name", NULL));
+		d_printf("\tEnabled         : %s\n",
+			 ldb_msg_find_attr_as_string(conn_msg, "enabledConnection", "TRUE"));
+		d_printf("\tServer DNS name : %s\n", dc_dns_name);
+		d_printf("\tServer DN  name : %s\n",
+			 ldb_msg_find_attr_as_string(conn_msg, "fromServer", NULL));
+		transport_type = ldb_msg_find_attr_as_string(conn_msg, "transportType", NULL);
+		d_printf("\t\tTransportType: %s\n",
+		         net_drs_transport_type_str(drs_ctx, transport_type));
+		/* TODO: print Connection options in friendly format */
+		options = ldb_msg_find_attr_as_uint(conn_msg, "options", 0);
+		d_printf("\t\toptions:  0x%08X\n", options);
+
+		/* print replicated NCs for this connection */
+		msg_elem = ldb_msg_find_element(conn_msg, "mS-DS-ReplicatesNCReason");
+		if (!msg_elem) {
+			d_printf("Warning: No NC replicated for Connection!\n");
+			continue;
+		}
+		for (k = 0; k < msg_elem->num_values; k++) {
+			struct dsdb_dn *bin_dn;
+
+			bin_dn = dsdb_dn_parse(mem_ctx, drs_ctx->ldap.ldb,
+			                       &msg_elem->values[k], DSDB_SYNTAX_BINARY_DN);
+			if (!bin_dn) {
+				d_printf("Unexpected: Failed to parse DN - %s\n",
+				         msg_elem->values[k].data);
+			}
+			d_printf("\t\tReplicatesNC: %s\n", ldb_dn_get_linearized(bin_dn->dn));
+			/* TODO: print Reason flags in friendly format */
+			options = RIVAL(bin_dn->extra_part.data, 0);
+			d_printf("\t\tReason: 0x%08X\n", options);
+			d_printf("\t\t\tReplica link has been added.\n");
+		}
+	}
+
+	talloc_free(mem_ctx);
+	return true;
+
+failed:
+	talloc_free(mem_ctx);
+	return false;
+}
+
+/**
+ * Prints all DC's connections failure.
+ *
+ * NOTE: Still don't know exactly what
+ * this information means
+ */
+static bool net_drs_showrepl_print_connect_failures(struct net_drs_context *drs_ctx)
+{
+	int i;
+	bool bret;
+	struct ldb_dn *ntds_dn;
+	struct drsuapi_DsReplicaKccDsaFailure *failure;
+	struct drsuapi_DsReplicaKccDsaFailuresCtr *connect_failures;
+	union drsuapi_DsReplicaInfo replica_info;
+	TALLOC_CTX *mem_ctx;
+
+	d_printf("\n==== CONNECION FAILURES ====\n");
+
+	bret = net_drs_exec_DsReplicaGetInfo(drs_ctx,
+	                                     DRSUAPI_DS_REPLICA_INFO_KCC_DSA_CONNECT_FAILURES,
+	                                     &replica_info);
+	if (!bret) {
+		d_printf("DsReplicaGetInfo() failed for DRSUAPI_DS_REPLICA_INFO_KCC_DSA_CONNECT_FAILURES.\n");
+		return false;
+	}
+	connect_failures = replica_info.connectfailures;
+
+	mem_ctx = talloc_new(drs_ctx);
+
+	for (i = 0; i < connect_failures->count; i++) {
+		failure = &connect_failures->array[i];
+
+		ntds_dn = ldb_dn_new(mem_ctx, drs_ctx->ldap.ldb, failure->dsa_obj_dn);
+		d_printf("Source: %s\n", net_drs_dc_canonical_string(ntds_dn, mem_ctx));
+		d_printf("******* %d CONSECUTIVE FAILURES since %s\n",
+			 failure->num_failures,
+			 nt_time_string(mem_ctx, failure->first_failure));
+		d_printf("Last error: %d (%s):\n",
+		         W_ERROR_V(failure->last_result),
+		         win_errstr(failure->last_result));
+		d_printf("\t\t\t%s\n", get_friendly_werror_msg(failure->last_result));
+	}
+
+	talloc_free(mem_ctx);
+	return true;
+}
+
+/**
+ * Prints all DC's link failures
+ */
+static bool net_drs_showrepl_print_link_failures(struct net_drs_context *drs_ctx)
+{
+	int i;
+	bool bret;
+	struct ldb_dn *ntds_dn;
+	struct drsuapi_DsReplicaKccDsaFailure *failure;
+	struct drsuapi_DsReplicaKccDsaFailuresCtr *link_failures;
+	union drsuapi_DsReplicaInfo replica_info;
+	TALLOC_CTX *mem_ctx;
+
+	d_printf("\n==== LINK FAILURES ====\n");
+
+	bret = net_drs_exec_DsReplicaGetInfo(drs_ctx,
+	                                     DRSUAPI_DS_REPLICA_INFO_KCC_DSA_LINK_FAILURES, &replica_info);
+	if (!bret) {
+		d_printf("DsReplicaGetInfo() failed for DRSUAPI_DS_REPLICA_INFO_KCC_DSA_CONNECT_FAILURES.\n");
+		return false;
+	}
+	link_failures = replica_info.linkfailures;
+
+	mem_ctx = talloc_new(drs_ctx);
+
+	for (i = 0; i < link_failures->count; i++) {
+		failure = &link_failures->array[i];
+
+		ntds_dn = ldb_dn_new(mem_ctx, drs_ctx->ldap.ldb, failure->dsa_obj_dn);
+		d_printf("Source: %s\n", net_drs_dc_canonical_string(ntds_dn, mem_ctx));
+		d_printf("******* %d CONSECUTIVE FAILURES since %s\n",
+			 failure->num_failures,
+			 nt_time_string(mem_ctx, failure->first_failure));
+		d_printf("Last error: %d (%s):\n",
+		         W_ERROR_V(failure->last_result),
+		         win_errstr(failure->last_result));
+		d_printf("\t\t\t%s\n", get_friendly_werror_msg(failure->last_result));
+	}
+
+	talloc_free(mem_ctx);
+	return true;
+}
+
+/**
+ * 'samba-tool drs showrepl' command entry point
+ */
+int net_drs_showrepl_cmd(struct net_context *ctx, int argc, const char **argv)
+{
+	const char *dc_name;
+	struct net_drs_context *drs_ctx = NULL;
+
+	/* only one arg expected */
+	if (argc != 1) {
+		return net_drs_showrepl_usage(ctx, argc, argv);
+	}
+
+	dc_name = argv[0];
+
+	if (!net_drs_create_context(ctx, dc_name, &drs_ctx)) {
+		goto failed;
+	}
+
+	/* Print DC and Site info */
+	if (!net_drs_showrepl_print_dc_info(drs_ctx)) {
+		goto failed;
+	}
+
+	/* INBOUND Neighbors */
+	if (!net_drs_showrepl_print_inbound_neihbors(drs_ctx)) {
+		goto failed;
+	}
+
+	/* OUTBOUND Neighbors */
+	if (!net_drs_showrepl_print_outbound_neihbors(drs_ctx)) {
+		goto failed;
+	}
+
+	/* Connection objects for DC */
+	if (!net_drs_showrepl_print_connection_objects(drs_ctx)) {
+		goto failed;
+	}
+
+	/* Connection failures */
+	if (!net_drs_showrepl_print_connect_failures(drs_ctx)) {
+		goto failed;
+	}
+
+	/* Link failures */
+	if (!net_drs_showrepl_print_link_failures(drs_ctx)) {
+		goto failed;
+	}
+
+	talloc_free(drs_ctx);
+	return 0;
+
+failed:
+	talloc_free(drs_ctx);
+	return -1;
+}
+
+/**
+ * 'samba-tool drs showrepl' usage
+ */
+int net_drs_showrepl_usage(struct net_context *ctx, int argc, const char **argv)
+{
+	d_printf("samba-tool drs showrepl <DC_NAME>\n");
+	return 0;
+}