/* 
   Unix SMB/CIFS implementation.

   libnet_BecomeDC() tests

   Copyright (C) Stefan (metze) Metzmacher 2006
   
   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 2 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, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "includes.h"
#include "lib/cmdline/popt_common.h"
#include "torture/torture.h"
#include "torture/rpc/rpc.h"
#include "libnet/libnet.h"
#include "lib/events/events.h"
#include "dsdb/samdb/samdb.h"
#include "lib/util/dlinklist.h"

#define TORTURE_NETBIOS_NAME "smbtorturedc"

struct test_become_dc_state {
	struct libnet_context *ctx;
	struct test_join *tj;
	struct cli_credentials *machine_account;
	struct dsdb_schema *schema;

	struct ldb_context *ldb;

	struct {
		struct drsuapi_DsReplicaObjectListItemEx *first_object;
		struct drsuapi_DsReplicaObjectListItemEx *last_object;
	} schema_part;
};

static NTSTATUS test_become_dc_check_options(void *private_data,
					     const struct libnet_BecomeDC_CheckOptions *o)
{
	DEBUG(0,("Become DC of Domain[%s]/[%s]\n",
		o->domain->netbios_name, o->domain->dns_name));

	DEBUG(0,("Promotion Partner is Server[%s] from Site[%s]\n",
		o->source_dsa->dns_name, o->source_dsa->site_name));

	DEBUG(0,("Options:crossRef behavior_version[%u]\n"
		       "\tschema object_version[%u]\n"
		       "\tdomain behavior_version[%u]\n"
		       "\tdomain w2k3_update_revision[%u]\n", 
		o->forest->crossref_behavior_version,
		o->forest->schema_object_version,
		o->domain->behavior_version,
		o->domain->w2k3_update_revision));

	return NT_STATUS_OK;
}

static NTSTATUS test_become_dc_prepare_db(void *private_data,
					  const struct libnet_BecomeDC_PrepareDB *p)
{
	struct test_become_dc_state *s = talloc_get_type(private_data, struct test_become_dc_state);

	DEBUG(0,("New Server[%s] in Site[%s]\n",
		p->dest_dsa->dns_name, p->dest_dsa->site_name));

	DEBUG(0,("DSA Instance [%s]\n"
		"\tobjectGUID[%s]\n"
		"\tinvocationId[%s]\n",
		p->dest_dsa->ntds_dn_str,
		GUID_string(s, &p->dest_dsa->ntds_guid),
		GUID_string(s, &p->dest_dsa->invocation_id)));

	DEBUG(0,("Schema Partition[%s]\n",
		p->forest->schema_dn_str));

	DEBUG(0,("Config Partition[%s]\n",
		p->forest->config_dn_str));

	DEBUG(0,("Domain Partition[%s]\n",
		p->domain->dn_str));

	return NT_STATUS_OK;
}

static WERROR test_object_to_ldb(struct test_become_dc_state *s,
				 const struct libnet_BecomeDC_StoreChunk *c,
				 struct drsuapi_DsReplicaObjectListItemEx *obj,
				 TALLOC_CTX *mem_ctx,
				 struct ldb_message **_msg)
{
	WERROR status;
	uint32_t i;
	struct ldb_message *msg;

	msg = ldb_msg_new(mem_ctx);
	W_ERROR_HAVE_NO_MEMORY(msg);

	msg->dn			= ldb_dn_new(msg, s->ldb, obj->object.identifier->dn);
	W_ERROR_HAVE_NO_MEMORY(msg->dn);

	msg->num_elements	= obj->object.attribute_ctr.num_attributes;
	msg->elements		= talloc_array(msg, struct ldb_message_element,
					       msg->num_elements);
	W_ERROR_HAVE_NO_MEMORY(msg->elements);

	for (i=0; i < msg->num_elements; i++) {
		status = dsdb_attribute_drsuapi_to_ldb(s->schema,
						       &obj->object.attribute_ctr.attributes[i],
						       msg->elements, &msg->elements[i]);
		W_ERROR_NOT_OK_RETURN(status);
	}

	if (lp_parm_bool(-1, "become dc", "dump objects", False)) {
		struct ldb_ldif ldif;
		fprintf(stdout, "#\n");
		ldif.changetype = LDB_CHANGETYPE_NONE;
		ldif.msg = msg;
		ldb_ldif_write_file(s->ldb, stdout, &ldif);
	}

	*_msg = msg;
	return WERR_OK;
}

static NTSTATUS test_apply_schema(struct test_become_dc_state *s,
				  const struct libnet_BecomeDC_StoreChunk *c)
{
	WERROR status;
	struct drsuapi_DsReplicaObjectListItemEx *cur;

	for (cur = s->schema_part.first_object; cur; cur = cur->next_object) {
		uint32_t i;
		bool is_attr = false;
		bool is_class = false;

		for (i=0; i < cur->object.attribute_ctr.num_attributes; i++) {
			struct drsuapi_DsReplicaAttribute *a;
			uint32_t j;
			const char *oid = NULL;

			a = &cur->object.attribute_ctr.attributes[i];
			status = dsdb_map_int2oid(s->schema, a->attid, s, &oid);
			if (!W_ERROR_IS_OK(status)) {
				return werror_to_ntstatus(status);
			}

			switch (a->attid) {
			case DRSUAPI_ATTRIBUTE_objectClass:
				for (j=0; j < a->value_ctr.num_values; j++) {
					uint32_t val = 0xFFFFFFFF;

					if (a->value_ctr.values[i].blob
					    && a->value_ctr.values[i].blob->length == 4) {
						val = IVAL(a->value_ctr.values[i].blob->data,0);
					}

					if (val == DRSUAPI_OBJECTCLASS_attributeSchema) {
						is_attr = true;
					}
					if (val == DRSUAPI_OBJECTCLASS_classSchema) {
						is_class = true;
					}
				}

				break;
			default:
				break;
			}
		}

		if (is_attr) {
			struct dsdb_attribute *sa;

			sa = talloc_zero(s->schema, struct dsdb_attribute);
			NT_STATUS_HAVE_NO_MEMORY(sa);

			status = dsdb_attribute_from_drsuapi(s->schema, &cur->object, s, sa);
			if (!W_ERROR_IS_OK(status)) {
				return werror_to_ntstatus(status);
			}

			DLIST_ADD_END(s->schema->attributes, sa, struct dsdb_attribute *);
		}

		if (is_class) {
			struct dsdb_class *sc;

			sc = talloc_zero(s->schema, struct dsdb_class);
			NT_STATUS_HAVE_NO_MEMORY(sc);

			status = dsdb_class_from_drsuapi(s->schema, &cur->object, s, sc);
			if (!W_ERROR_IS_OK(status)) {
				return werror_to_ntstatus(status);
			}

			DLIST_ADD_END(s->schema->classes, sc, struct dsdb_class *);
		}
	}

	for (cur = s->schema_part.first_object; cur; cur = cur->next_object) {
		struct ldb_message *msg;
		status = test_object_to_ldb(s, c, cur, s, &msg);
		if (!W_ERROR_IS_OK(status)) {
			return werror_to_ntstatus(status);
		}
	}

	return NT_STATUS_OK;
}

static NTSTATUS test_become_dc_schema_chunk(void *private_data,
					    const struct libnet_BecomeDC_StoreChunk *c)
{
	struct test_become_dc_state *s = talloc_get_type(private_data, struct test_become_dc_state);
	WERROR status;
	const struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr;
	uint32_t total_object_count;
	uint32_t object_count;
	struct drsuapi_DsReplicaObjectListItemEx *first_object;
	struct drsuapi_DsReplicaObjectListItemEx *cur;

	switch (c->ctr_level) {
	case 1:
		mapping_ctr		= &c->ctr1->mapping_ctr;
		total_object_count	= c->ctr1->total_object_count;
		object_count		= c->ctr1->object_count;
		first_object		= c->ctr1->first_object;
		break;
	case 6:
		mapping_ctr		= &c->ctr6->mapping_ctr;
		total_object_count	= c->ctr6->total_object_count;
		object_count		= c->ctr6->object_count;
		first_object		= c->ctr6->first_object;
		break;
	default:
		return NT_STATUS_INVALID_PARAMETER;
	}

	if (total_object_count) {
		DEBUG(0,("Schema-DN[%s] objects[%u/%u]\n",
			c->partition->nc.dn, object_count, total_object_count));
	} else {
		DEBUG(0,("Schema-DN[%s] objects[%u]\n",
		c->partition->nc.dn, object_count));
	}

	if (!s->schema) {
		s->schema = talloc_zero(s, struct dsdb_schema);
		NT_STATUS_HAVE_NO_MEMORY(s->schema);

		status = dsdb_load_oid_mappings(s->schema, mapping_ctr);
		if (!W_ERROR_IS_OK(status)) {
			return werror_to_ntstatus(status);
		}
	} else {
		status = dsdb_verify_oid_mappings(s->schema, mapping_ctr);
		if (!W_ERROR_IS_OK(status)) {
			return werror_to_ntstatus(status);
		}
	}

	if (!s->schema_part.first_object) {
		s->schema_part.first_object = talloc_steal(s, first_object);
	} else {
		s->schema_part.last_object->next_object = talloc_steal(s->schema_part.last_object,
								       first_object);
	}
	for (cur = first_object; cur->next_object; cur = cur->next_object) {}
	s->schema_part.last_object = cur;

	if (c->partition->highwatermark.tmp_highest_usn == c->partition->highwatermark.highest_usn) {
		return test_apply_schema(s, c);
	}

	return NT_STATUS_OK;
}

static NTSTATUS test_become_dc_store_chunk(void *private_data,
					   const struct libnet_BecomeDC_StoreChunk *c)
{
	struct test_become_dc_state *s = talloc_get_type(private_data, struct test_become_dc_state);
	WERROR status;
	const struct drsuapi_DsReplicaOIDMapping_Ctr *mapping_ctr;
	uint32_t total_object_count;
	uint32_t object_count;
	struct drsuapi_DsReplicaObjectListItemEx *first_object;
	struct drsuapi_DsReplicaObjectListItemEx *cur;

	switch (c->ctr_level) {
	case 1:
		mapping_ctr		= &c->ctr1->mapping_ctr;
		total_object_count	= c->ctr1->total_object_count;
		object_count		= c->ctr1->object_count;
		first_object		= c->ctr1->first_object;
		break;
	case 6:
		mapping_ctr		= &c->ctr6->mapping_ctr;
		total_object_count	= c->ctr6->total_object_count;
		object_count		= c->ctr6->object_count;
		first_object		= c->ctr6->first_object;
		break;
	default:
		return NT_STATUS_INVALID_PARAMETER;
	}

	if (total_object_count) {
		DEBUG(0,("Partition[%s] objects[%u/%u]\n",
			c->partition->nc.dn, object_count, total_object_count));
	} else {
		DEBUG(0,("Partition[%s] objects[%u]\n",
		c->partition->nc.dn, object_count));
	}

	status = dsdb_verify_oid_mappings(s->schema, mapping_ctr);
	if (!W_ERROR_IS_OK(status)) {
		return werror_to_ntstatus(status);
	}

	for (cur = first_object; cur; cur = cur->next_object) {
		struct ldb_message *msg;
		status = test_object_to_ldb(s, c, cur, s, &msg);
		if (!W_ERROR_IS_OK(status)) {
			return werror_to_ntstatus(status);
		}
	}

	return NT_STATUS_OK;
}

BOOL torture_net_become_dc(struct torture_context *torture)
{
	BOOL ret = True;
	NTSTATUS status;
	struct libnet_BecomeDC b;
	struct libnet_UnbecomeDC u;
	struct test_become_dc_state *s;

	s = talloc_zero(torture, struct test_become_dc_state);
	if (!s) return False;

	/* Join domain as a member server. */
	s->tj = torture_join_domain(TORTURE_NETBIOS_NAME,
				 ACB_WSTRUST,
				 &s->machine_account);
	if (!s->tj) {
		DEBUG(0, ("%s failed to join domain as workstation\n",
			  TORTURE_NETBIOS_NAME));
		return False;
	}

	s->ctx = libnet_context_init(event_context_init(s));
	s->ctx->cred = cmdline_credentials;

	s->ldb = ldb_init(s);

	ZERO_STRUCT(b);
	b.in.domain_dns_name		= torture_join_dom_dns_name(s->tj);
	b.in.domain_netbios_name	= torture_join_dom_netbios_name(s->tj);
	b.in.domain_sid			= torture_join_sid(s->tj);
	b.in.source_dsa_address		= lp_parm_string(-1, "torture", "host");
	b.in.dest_dsa_netbios_name	= TORTURE_NETBIOS_NAME;

	b.in.callbacks.private_data	= s;
	b.in.callbacks.check_options	= test_become_dc_check_options;
	b.in.callbacks.prepare_db	= test_become_dc_prepare_db;
	b.in.callbacks.schema_chunk	= test_become_dc_schema_chunk;
	b.in.callbacks.config_chunk	= test_become_dc_store_chunk;
	b.in.callbacks.domain_chunk	= test_become_dc_store_chunk;

	status = libnet_BecomeDC(s->ctx, s, &b);
	if (!NT_STATUS_IS_OK(status)) {
		printf("libnet_BecomeDC() failed - %s\n", nt_errstr(status));
		ret = False;
	}

	ZERO_STRUCT(u);
	u.in.domain_dns_name		= torture_join_dom_dns_name(s->tj);
	u.in.domain_netbios_name	= torture_join_dom_netbios_name(s->tj);
	u.in.source_dsa_address		= lp_parm_string(-1, "torture", "host");
	u.in.dest_dsa_netbios_name	= TORTURE_NETBIOS_NAME;

	status = libnet_UnbecomeDC(s->ctx, s, &u);
	if (!NT_STATUS_IS_OK(status)) {
		printf("libnet_UnbecomeDC() failed - %s\n", nt_errstr(status));
		ret = False;
	}

	/* Leave domain. */                          
	torture_leave_domain(s->tj);

	talloc_free(s);
	return ret;
}