r26296: Store loadparm context in DCE/RPC server context.
[jelmer/samba4-debian.git] / source / rpc_server / drsuapi / dcesrv_drsuapi.c
index 4028e4c4f9c5c56d5af5eea548973f0a67be9666..a97b93a051a3bae29fb6931968f6843ca9091cf6 100644 (file)
@@ -4,10 +4,11 @@
    endpoint server for the drsuapi pipe
 
    Copyright (C) Stefan Metzmacher 2004
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 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
+   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,
@@ -16,8 +17,7 @@
    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.
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "includes.h"
 #include "rpc_server/common/common.h"
 #include "rpc_server/drsuapi/dcesrv_drsuapi.h"
 #include "dsdb/samdb/samdb.h"
+#include "lib/ldb/include/ldb_errors.h"
+#include "param/param.h"
 
 /* 
   drsuapi_DsBind 
 */
-static WERROR drsuapi_DsBind(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_drsuapi_DsBind(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct drsuapi_DsBind *r)
 {
        struct drsuapi_bind_state *b_state;
        struct dcesrv_handle *handle;
        struct drsuapi_DsBindInfoCtr *bind_info;
        struct GUID site_guid;
+       struct ldb_result *site_res;
+       struct ldb_dn *server_site_dn;
+       static const char *site_attrs[] = { "objectGUID", NULL };
+       struct ldb_result *ntds_res;
+       struct ldb_dn *ntds_dn;
+       static const char *ntds_attrs[] = { "ms-DS-ReplicationEpoch", NULL };
+       uint32_t u1;
+       uint32_t repl_epoch;
+       int ret;
 
        r->out.bind_info = NULL;
        ZERO_STRUCTP(r->out.bind_handle);
 
-       b_state = talloc(dce_call->conn, struct drsuapi_bind_state);
+       b_state = talloc_zero(mem_ctx, struct drsuapi_bind_state);
        W_ERROR_HAVE_NO_MEMORY(b_state);
 
-       b_state->sam_ctx = samdb_connect(b_state, dce_call->conn->auth_state.session_info); 
+       /*
+        * connect to the samdb
+        */
+       b_state->sam_ctx = samdb_connect(b_state, dce_call->conn->dce_ctx->lp_ctx, dce_call->conn->auth_state.session_info); 
        if (!b_state->sam_ctx) {
-               talloc_free(b_state);
                return WERR_FOOBAR;
        }
 
-       handle = dcesrv_handle_new(dce_call->context, DRSUAPI_BIND_HANDLE);
-       if (!handle) {
-               talloc_free(b_state);
-               return WERR_NOMEM;
+       /*
+        * find out the guid of our own site
+        */
+       server_site_dn = samdb_server_site_dn(b_state->sam_ctx, mem_ctx);
+       W_ERROR_HAVE_NO_MEMORY(server_site_dn);
+
+       ret = ldb_search_exp_fmt(b_state->sam_ctx, mem_ctx, &site_res,
+                                server_site_dn, LDB_SCOPE_BASE, site_attrs,
+                                "(objectClass=*)");
+       if (ret != LDB_SUCCESS) {
+               return WERR_DS_DRA_INTERNAL_ERROR;
+       }
+       if (site_res->count != 1) {
+               return WERR_DS_DRA_INTERNAL_ERROR;
        }
+       site_guid = samdb_result_guid(site_res->msgs[0], "objectGUID");
 
-       handle->data = talloc_steal(handle, b_state);
+       /*
+        * lookup the local servers Replication Epoch
+        */
+       ntds_dn = samdb_ntds_settings_dn(b_state->sam_ctx);
+       W_ERROR_HAVE_NO_MEMORY(ntds_dn);
+
+       ret = ldb_search_exp_fmt(b_state->sam_ctx, mem_ctx, &ntds_res,
+                                ntds_dn, LDB_SCOPE_BASE, ntds_attrs,
+                                "(objectClass=*)");
+       if (ret != LDB_SUCCESS) {
+               return WERR_DS_DRA_INTERNAL_ERROR;
+       }
+       if (ntds_res->count != 1) {
+               return WERR_DS_DRA_INTERNAL_ERROR;
+       }
+       repl_epoch = samdb_result_uint(ntds_res->msgs[0], "ms-DS-ReplicationEpoch", 0);
 
+       /*
+        * TODO: find out what this is...
+        */
+       u1 = 0;
+
+       /*
+        * store the clients bind_guid
+        */
+       if (r->in.bind_guid) {
+               b_state->remote_bind_guid = *r->in.bind_guid;
+       }
+
+       /*
+        * store the clients bind_info
+        */
+       if (r->in.bind_info) {
+               switch (r->in.bind_info->length) {
+               case 24: {
+                       struct drsuapi_DsBindInfo24 *info24;
+                       info24 = &r->in.bind_info->info.info24;
+                       b_state->remote_info28.supported_extensions     = info24->supported_extensions;
+                       b_state->remote_info28.site_guid                = info24->site_guid;
+                       b_state->remote_info28.u1                       = info24->u1;
+                       b_state->remote_info28.repl_epoch               = 0;
+                       break;
+               }
+               case 28:
+                       b_state->remote_info28 = r->in.bind_info->info.info28;
+                       break;
+               }
+       }
+
+       /*
+        * fill in our local bind info 28
+        */
+       b_state->local_info28.supported_extensions      = 0;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_BASE;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2;
+#if 0 /* we don't support MSZIP compression (only decompression) */
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS;
+#endif
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2;
+       if (0 /*domain.behavior_version == 2*/) {
+               /* TODO: find out how this is really triggered! */
+               b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION;
+       }
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_00100000;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7;
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT;
+#if 0 /* we don't support XPRESS compression yet */
+       b_state->local_info28.supported_extensions      |= DRSUAPI_SUPPORTED_EXTENSION_XPRESS_COMPRESS;
+#endif
+       b_state->local_info28.site_guid                 = site_guid;
+       b_state->local_info28.u1                                = u1;
+       b_state->local_info28.repl_epoch                        = repl_epoch;
+
+       /*
+        * allocate the return bind_info
+        */
        bind_info = talloc(mem_ctx, struct drsuapi_DsBindInfoCtr);
        W_ERROR_HAVE_NO_MEMORY(bind_info);
 
-       ZERO_STRUCT(site_guid);
+       bind_info->length       = 28;
+       bind_info->info.info28  = b_state->local_info28;
 
-       bind_info->length                               = 28;
-       bind_info->info.info28.supported_extensions     = 0;
-       bind_info->info.info28.site_guid                = site_guid;
-       bind_info->info.info28.u1                       = 0;
-       bind_info->info.info28.repl_epoch               = 0;
+       /*
+        * allocate a bind handle
+        */
+       handle = dcesrv_handle_new(dce_call->context, DRSUAPI_BIND_HANDLE);
+       W_ERROR_HAVE_NO_MEMORY(handle);
+       handle->data = talloc_steal(handle, b_state);
 
+       /*
+        * prepare reply
+        */
        r->out.bind_info = bind_info;
        *r->out.bind_handle = handle->wire_handle;
 
@@ -79,7 +203,7 @@ static WERROR drsuapi_DsBind(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem
 /* 
   drsuapi_DsUnbind 
 */
-static WERROR drsuapi_DsUnbind(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_drsuapi_DsUnbind(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                               struct drsuapi_DsUnbind *r)
 {
        struct dcesrv_handle *h;
@@ -99,7 +223,7 @@ static WERROR drsuapi_DsUnbind(struct dcesrv_call_state *dce_call, TALLOC_CTX *m
 /* 
   drsuapi_DsReplicaSync 
 */
-static WERROR drsuapi_DsReplicaSync(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_drsuapi_DsReplicaSync(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct drsuapi_DsReplicaSync *r)
 {
        /* TODO: implement this call correct!
@@ -113,7 +237,7 @@ static WERROR drsuapi_DsReplicaSync(struct dcesrv_call_state *dce_call, TALLOC_C
 /* 
   drsuapi_DsGetNCChanges
 */
-static WERROR drsuapi_DsGetNCChanges(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_drsuapi_DsGetNCChanges(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct drsuapi_DsGetNCChanges *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -123,7 +247,7 @@ static WERROR drsuapi_DsGetNCChanges(struct dcesrv_call_state *dce_call, TALLOC_
 /* 
   drsuapi_DsReplicaUpdateRefs
 */
-static WERROR drsuapi_DsReplicaUpdateRefs(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_drsuapi_DsReplicaUpdateRefs(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct drsuapi_DsReplicaUpdateRefs *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -133,7 +257,7 @@ static WERROR drsuapi_DsReplicaUpdateRefs(struct dcesrv_call_state *dce_call, TA
 /* 
   DRSUAPI_REPLICA_ADD 
 */
-static WERROR DRSUAPI_REPLICA_ADD(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_DRSUAPI_REPLICA_ADD(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct DRSUAPI_REPLICA_ADD *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -143,7 +267,7 @@ static WERROR DRSUAPI_REPLICA_ADD(struct dcesrv_call_state *dce_call, TALLOC_CTX
 /* 
   DRSUAPI_REPLICA_DEL 
 */
-static WERROR DRSUAPI_REPLICA_DEL(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_DRSUAPI_REPLICA_DEL(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct DRSUAPI_REPLICA_DEL *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -153,7 +277,7 @@ static WERROR DRSUAPI_REPLICA_DEL(struct dcesrv_call_state *dce_call, TALLOC_CTX
 /* 
   DRSUAPI_REPLICA_MODIFY 
 */
-static WERROR DRSUAPI_REPLICA_MODIFY(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_DRSUAPI_REPLICA_MODIFY(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct DRSUAPI_REPLICA_MODIFY *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -163,7 +287,7 @@ static WERROR DRSUAPI_REPLICA_MODIFY(struct dcesrv_call_state *dce_call, TALLOC_
 /* 
   DRSUAPI_VERIFY_NAMES 
 */
-static WERROR DRSUAPI_VERIFY_NAMES(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_DRSUAPI_VERIFY_NAMES(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct DRSUAPI_VERIFY_NAMES *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -173,7 +297,7 @@ static WERROR DRSUAPI_VERIFY_NAMES(struct dcesrv_call_state *dce_call, TALLOC_CT
 /* 
   drsuapi_DsGetMemberships 
 */
-static WERROR drsuapi_DsGetMemberships(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_drsuapi_DsGetMemberships(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct drsuapi_DsGetMemberships *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -183,7 +307,7 @@ static WERROR drsuapi_DsGetMemberships(struct dcesrv_call_state *dce_call, TALLO
 /* 
   DRSUAPI_INTER_DOMAIN_MOVE 
 */
-static WERROR DRSUAPI_INTER_DOMAIN_MOVE(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_DRSUAPI_INTER_DOMAIN_MOVE(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct DRSUAPI_INTER_DOMAIN_MOVE *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -191,10 +315,10 @@ static WERROR DRSUAPI_INTER_DOMAIN_MOVE(struct dcesrv_call_state *dce_call, TALL
 
 
 /* 
-  DRSUAPI_GET_NT4_CHANGELOG 
+  drsuapi_DsGetNT4ChangeLog 
 */
-static WERROR DRSUAPI_GET_NT4_CHANGELOG(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
-                      struct DRSUAPI_GET_NT4_CHANGELOG *r)
+static WERROR dcesrv_drsuapi_DsGetNT4ChangeLog(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+                      struct drsuapi_DsGetNT4ChangeLog *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
 }
@@ -203,7 +327,7 @@ static WERROR DRSUAPI_GET_NT4_CHANGELOG(struct dcesrv_call_state *dce_call, TALL
 /* 
   drsuapi_DsCrackNames 
 */
-WERROR drsuapi_DsCrackNames(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+WERROR dcesrv_drsuapi_DsCrackNames(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                            struct drsuapi_DsCrackNames *r)
 {
        WERROR status;
@@ -256,18 +380,81 @@ WERROR drsuapi_DsCrackNames(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_
 /* 
   drsuapi_DsWriteAccountSpn 
 */
-static WERROR drsuapi_DsWriteAccountSpn(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_drsuapi_DsWriteAccountSpn(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct drsuapi_DsWriteAccountSpn *r)
 {
-       DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
+       struct drsuapi_bind_state *b_state;
+       struct dcesrv_handle *h;
+
+       r->out.level = r->in.level;
+
+       DCESRV_PULL_HANDLE_WERR(h, r->in.bind_handle, DRSUAPI_BIND_HANDLE);
+       b_state = h->data;
+
+       switch (r->in.level) {
+               case 1: {
+                       struct drsuapi_DsWriteAccountSpnRequest1 *req;
+                       struct ldb_message *msg;
+                       int count, i, ret;
+                       req = &r->in.req.req1;
+                       count = req->count;
+
+                       msg = ldb_msg_new(mem_ctx);
+                       if (msg == NULL) {
+                               return WERR_NOMEM;
+                       }
+
+                       msg->dn = ldb_dn_new(msg, b_state->sam_ctx, req->object_dn);
+                       if ( ! ldb_dn_validate(msg->dn)) {
+                               r->out.res.res1.status = WERR_OK;
+                               return WERR_OK;
+                       }
+                       
+                       /* construct mods */
+                       for (i = 0; i < count; i++) {
+                               samdb_msg_add_string(b_state->sam_ctx, 
+                                                    msg, msg, "servicePrincipalName",
+                                                    req->spn_names[i].str);
+                       }
+                       for (i=0;i<msg->num_elements;i++) {
+                               switch (req->operation) {
+                               case DRSUAPI_DS_SPN_OPERATION_ADD:
+                                       msg->elements[i].flags = LDB_FLAG_MOD_ADD;
+                                       break;
+                               case DRSUAPI_DS_SPN_OPERATION_REPLACE:
+                                       msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
+                                       break;
+                               case DRSUAPI_DS_SPN_OPERATION_DELETE:
+                                       msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
+                                       break;
+                               }
+                       }
+   
+                       /* Apply to database */
+
+                       ret = ldb_modify(b_state->sam_ctx, msg);
+                       if (ret != 0) {
+                               DEBUG(0,("Failed to modify SPNs on %s: %s\n",
+                                        ldb_dn_get_linearized(msg->dn), 
+                                        ldb_errstring(b_state->sam_ctx)));
+                               r->out.res.res1.status = WERR_ACCESS_DENIED;
+                       } else {
+                               r->out.res.res1.status = WERR_OK;
+                       }
+
+                       return WERR_OK;
+               }
+       }
+       
+       return WERR_UNKNOWN_LEVEL;
 }
 
 
 /* 
-  DRSUAPI_REMOVE_DS_SERVER 
+  drsuapi_DsRemoveDSServer
 */
-static WERROR DRSUAPI_REMOVE_DS_SERVER(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
-                      struct DRSUAPI_REMOVE_DS_SERVER *r)
+static WERROR dcesrv_drsuapi_DsRemoveDSServer(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+                                      struct drsuapi_DsRemoveDSServer *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
 }
@@ -276,27 +463,280 @@ static WERROR DRSUAPI_REMOVE_DS_SERVER(struct dcesrv_call_state *dce_call, TALLO
 /* 
   DRSUAPI_REMOVE_DS_DOMAIN 
 */
-static WERROR DRSUAPI_REMOVE_DS_DOMAIN(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_DRSUAPI_REMOVE_DS_DOMAIN(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct DRSUAPI_REMOVE_DS_DOMAIN *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
 }
 
+/* Obtain the site name from a server DN */
+const char *result_site_name(struct ldb_dn *site_dn)
+{
+       /* Format is cn=<NETBIOS name>,cn=Servers,cn=<site>,cn=sites.... */
+       const struct ldb_val *val = ldb_dn_get_component_val(site_dn, 2);
+       const char *name = ldb_dn_get_component_name(site_dn, 2);
+
+       if (!name || (ldb_attr_cmp(name, "cn") != 0)) {
+               /* Ensure this matches the format.  This gives us a
+                * bit more confidence that a 'cn' value will be a
+                * ascii string */
+               return NULL;
+       }
+       if (val) {
+               return (char *)val->data;
+       }
+       return NULL;
+}
 
 /* 
   drsuapi_DsGetDomainControllerInfo 
 */
-static WERROR drsuapi_DsGetDomainControllerInfo(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_drsuapi_DsGetDomainControllerInfo_1(struct drsuapi_bind_state *b_state, 
+                                               TALLOC_CTX *mem_ctx,
                                                struct drsuapi_DsGetDomainControllerInfo *r)
 {
-       DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
+       struct ldb_dn *sites_dn;
+       struct ldb_result *res;
+
+       const char *attrs_account_1[] = { "cn", "dnsHostName", NULL };
+       const char *attrs_account_2[] = { "cn", "dnsHostName", "objectGUID", NULL };
+
+       const char *attrs_none[] = { NULL };
+
+       const char *attrs_site[] = { "objectGUID", NULL };
+
+       const char *attrs_ntds[] = { "options", "objectGUID", NULL };
+
+       const char *attrs_1[] = { "serverReference", "cn", "dnsHostName", NULL };
+       const char *attrs_2[] = { "serverReference", "cn", "dnsHostName", "objectGUID", NULL };
+       const char **attrs;
+
+       struct drsuapi_DsGetDCInfoCtr1 *ctr1;
+       struct drsuapi_DsGetDCInfoCtr2 *ctr2;
+
+       int ret, i;
+
+       r->out.level_out = r->in.req.req1.level;
+
+       sites_dn = samdb_sites_dn(b_state->sam_ctx, mem_ctx);
+       if (!sites_dn) {
+               return WERR_DS_OBJ_NOT_FOUND;
+       }
+
+       switch (r->out.level_out) {
+       case -1:
+               /* this level is not like the others */
+               return WERR_UNKNOWN_LEVEL;
+       case 1:
+               attrs = attrs_1;
+               break;
+       case 2:
+               attrs = attrs_2;
+               break;
+       default:
+               return WERR_UNKNOWN_LEVEL;
+       }
+
+       ret = ldb_search_exp_fmt(b_state->sam_ctx, mem_ctx, &res, sites_dn, LDB_SCOPE_SUBTREE, attrs, 
+                                "objectClass=server");
+       
+       if (ret) {
+               DEBUG(1, ("searching for servers in sites DN %s failed: %s\n", 
+                         ldb_dn_get_linearized(sites_dn), ldb_errstring(b_state->sam_ctx)));
+               return WERR_GENERAL_FAILURE;
+       }
+
+       switch (r->out.level_out) {
+       case 1:
+               ctr1 = &r->out.ctr.ctr1;
+               ctr1->count = res->count;
+               ctr1->array = talloc_zero_array(mem_ctx, 
+                                               struct drsuapi_DsGetDCInfo1, 
+                                               res->count);
+               for (i=0; i < res->count; i++) {
+                       struct ldb_dn *domain_dn;
+                       struct ldb_result *res_domain;
+                       struct ldb_result *res_account;
+                       struct ldb_dn *ntds_dn = ldb_dn_copy(mem_ctx, res->msgs[i]->dn);
+                       
+                       struct ldb_dn *ref_dn
+                               = ldb_msg_find_attr_as_dn(b_state->sam_ctx, 
+                                                         mem_ctx, res->msgs[i], 
+                                                         "serverReference");
+
+                       if (!ntds_dn || !ldb_dn_add_child_fmt(ntds_dn, "CN=NTDS Settings")) {
+                               return WERR_NOMEM;
+                       }
+
+                       ret = ldb_search_exp_fmt(b_state->sam_ctx, mem_ctx, &res_account, ref_dn, 
+                                                LDB_SCOPE_BASE, attrs_account_1, "objectClass=computer");
+                       if (ret == LDB_SUCCESS && res_account->count == 1) {
+                               const char *errstr;
+                               ctr1->array[i].dns_name
+                                       = ldb_msg_find_attr_as_string(res_account->msgs[0], "dNSHostName", NULL);
+                               ctr1->array[i].netbios_name
+                                       = ldb_msg_find_attr_as_string(res_account->msgs[0], "cn", NULL);
+                               ctr1->array[i].computer_dn
+                                       = ldb_dn_get_linearized(res_account->msgs[0]->dn);
+
+                               /* Determine if this is the PDC */
+                               ret = samdb_search_for_parent_domain(b_state->sam_ctx, 
+                                                                    mem_ctx, res_account->msgs[0]->dn,
+                                                                    &domain_dn, &errstr);
+                               
+                               if (ret == LDB_SUCCESS) {
+                                       ret = ldb_search_exp_fmt(b_state->sam_ctx, mem_ctx, &res_domain, domain_dn, 
+                                                                LDB_SCOPE_BASE, attrs_none, "fSMORoleOwner=%s",
+                                                                ldb_dn_get_linearized(ntds_dn));
+                                       if (ret) {
+                                               return WERR_GENERAL_FAILURE;
+                                       }
+                                       if (res_domain->count == 1) {
+                                               ctr1->array[i].is_pdc = true;
+                                       }
+                               }
+                       }
+                       if ((ret != LDB_SUCCESS) && (ret != LDB_ERR_NO_SUCH_OBJECT)) {
+                               DEBUG(5, ("warning: searching for computer DN %s failed: %s\n", 
+                                         ldb_dn_get_linearized(ref_dn), ldb_errstring(b_state->sam_ctx)));
+                       }
+
+                       /* Look at server DN and extract site component */
+                       ctr1->array[i].site_name = result_site_name(res->msgs[i]->dn);
+                       ctr1->array[i].server_dn = ldb_dn_get_linearized(res->msgs[i]->dn);
+
+
+                       ctr1->array[i].is_enabled = true;
+
+               }
+               break;
+       case 2:
+               ctr2 = &r->out.ctr.ctr2;
+               ctr2->count = res->count;
+               ctr2->array = talloc_zero_array(mem_ctx, 
+                                                struct drsuapi_DsGetDCInfo2, 
+                                                res->count);
+               for (i=0; i < res->count; i++) {
+                       struct ldb_dn *domain_dn;
+                       struct ldb_result *res_domain;
+                       struct ldb_result *res_account;
+                       struct ldb_dn *ntds_dn = ldb_dn_copy(mem_ctx, res->msgs[i]->dn);
+                       struct ldb_result *res_ntds;
+                       struct ldb_dn *site_dn = ldb_dn_copy(mem_ctx, res->msgs[i]->dn);
+                       struct ldb_result *res_site;
+                       struct ldb_dn *ref_dn
+                               = ldb_msg_find_attr_as_dn(b_state->sam_ctx, 
+                                                         mem_ctx, res->msgs[i], 
+                                                         "serverReference");
+
+                       if (!ntds_dn || !ldb_dn_add_child_fmt(ntds_dn, "CN=NTDS Settings")) {
+                               return WERR_NOMEM;
+                       }
+
+                       /* Format is cn=<NETBIOS name>,cn=Servers,cn=<site>,cn=sites.... */
+                       if (!site_dn || !ldb_dn_remove_child_components(site_dn, 2)) {
+                               return WERR_NOMEM;
+                       }
+
+                       ret = ldb_search_exp_fmt(b_state->sam_ctx, mem_ctx, &res_ntds, ntds_dn, 
+                                                LDB_SCOPE_BASE, attrs_ntds, "objectClass=nTDSDSA");
+                       if (ret == LDB_SUCCESS && res_ntds->count == 1) {
+                               ctr2->array[i].is_gc
+                                       = (ldb_msg_find_attr_as_int(res_ntds->msgs[0], "options", 0) == 1);
+                               ctr2->array[i].ntds_guid 
+                                       = samdb_result_guid(res_ntds->msgs[0], "objectGUID");
+                               ctr2->array[i].ntds_dn = ldb_dn_get_linearized(res_ntds->msgs[0]->dn);
+                       }
+                       if ((ret != LDB_SUCCESS) && (ret != LDB_ERR_NO_SUCH_OBJECT)) {
+                               DEBUG(5, ("warning: searching for NTDS DN %s failed: %s\n", 
+                                         ldb_dn_get_linearized(ntds_dn), ldb_errstring(b_state->sam_ctx)));
+                       }
+
+                       ret = ldb_search_exp_fmt(b_state->sam_ctx, mem_ctx, &res_site, site_dn, 
+                                                LDB_SCOPE_BASE, attrs_site, "objectClass=site");
+                       if (ret == LDB_SUCCESS && res_site->count == 1) {
+                               ctr2->array[i].site_guid 
+                                       = samdb_result_guid(res_site->msgs[0], "objectGUID");
+                               ctr2->array[i].site_dn = ldb_dn_get_linearized(res_site->msgs[0]->dn);
+                       }
+                       if ((ret != LDB_SUCCESS) && (ret != LDB_ERR_NO_SUCH_OBJECT)) {
+                               DEBUG(5, ("warning: searching for site DN %s failed: %s\n", 
+                                         ldb_dn_get_linearized(site_dn), ldb_errstring(b_state->sam_ctx)));
+                       }
+
+                       ret = ldb_search_exp_fmt(b_state->sam_ctx, mem_ctx, &res_account, ref_dn, 
+                                                LDB_SCOPE_BASE, attrs_account_2, "objectClass=computer");
+                       if (ret == LDB_SUCCESS && res_account->count == 1) {
+                               const char *errstr;
+                               ctr2->array[i].dns_name
+                                       = ldb_msg_find_attr_as_string(res_account->msgs[0], "dNSHostName", NULL);
+                               ctr2->array[i].netbios_name
+                                       = ldb_msg_find_attr_as_string(res_account->msgs[0], "cn", NULL);
+                               ctr2->array[i].computer_dn = ldb_dn_get_linearized(res_account->msgs[0]->dn);
+                               ctr2->array[i].computer_guid 
+                                       = samdb_result_guid(res_account->msgs[0], "objectGUID");
+
+                               /* Determine if this is the PDC */
+                               ret = samdb_search_for_parent_domain(b_state->sam_ctx, 
+                                                                    mem_ctx, res_account->msgs[0]->dn,
+                                                                    &domain_dn, &errstr);
+                               
+                               if (ret == LDB_SUCCESS) {
+                                       ret = ldb_search_exp_fmt(b_state->sam_ctx, mem_ctx, &res_domain, domain_dn, 
+                                                                LDB_SCOPE_BASE, attrs_none, "fSMORoleOwner=%s",
+                                                                ldb_dn_get_linearized(ntds_dn));
+                                       if (ret == LDB_SUCCESS && res_domain->count == 1) {
+                                               ctr2->array[i].is_pdc = true;
+                                       }
+                                       if ((ret != LDB_SUCCESS) && (ret != LDB_ERR_NO_SUCH_OBJECT)) {
+                                               DEBUG(5, ("warning: searching for domain DN %s failed: %s\n", 
+                                                         ldb_dn_get_linearized(domain_dn), ldb_errstring(b_state->sam_ctx)));
+                                       }
+                               }
+                       }
+                       if ((ret != LDB_SUCCESS) && (ret != LDB_ERR_NO_SUCH_OBJECT)) {
+                               DEBUG(5, ("warning: searching for computer account DN %s failed: %s\n", 
+                                         ldb_dn_get_linearized(ref_dn), ldb_errstring(b_state->sam_ctx)));
+                       }
+
+                       /* Look at server DN and extract site component */
+                       ctr2->array[i].site_name = result_site_name(res->msgs[i]->dn);
+                       ctr2->array[i].server_dn = ldb_dn_get_linearized(res->msgs[i]->dn);
+                       ctr2->array[i].server_guid 
+                               = samdb_result_guid(res->msgs[i], "objectGUID");
+
+                       ctr2->array[i].is_enabled = true;
+
+               }
+               break;
+       }
+       return WERR_OK;
+}
+
+/* 
+  drsuapi_DsGetDomainControllerInfo 
+*/
+static WERROR dcesrv_drsuapi_DsGetDomainControllerInfo(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+                                               struct drsuapi_DsGetDomainControllerInfo *r)
+{
+       struct dcesrv_handle *h;
+       struct drsuapi_bind_state *b_state;     
+       DCESRV_PULL_HANDLE_WERR(h, r->in.bind_handle, DRSUAPI_BIND_HANDLE);
+       b_state = h->data;
+
+       switch (r->in.level) {
+       case 1:
+               return dcesrv_drsuapi_DsGetDomainControllerInfo_1(b_state, mem_ctx, r);
+       }
+
+       return WERR_UNKNOWN_LEVEL;
 }
 
 
 /* 
   drsuapi_DsAddEntry
 */
-static WERROR drsuapi_DsAddEntry(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_drsuapi_DsAddEntry(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct drsuapi_DsAddEntry *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -306,7 +746,7 @@ static WERROR drsuapi_DsAddEntry(struct dcesrv_call_state *dce_call, TALLOC_CTX
 /* 
   DRSUAPI_EXECUTE_KCC 
 */
-static WERROR DRSUAPI_EXECUTE_KCC(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_DRSUAPI_EXECUTE_KCC(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct DRSUAPI_EXECUTE_KCC *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -316,7 +756,7 @@ static WERROR DRSUAPI_EXECUTE_KCC(struct dcesrv_call_state *dce_call, TALLOC_CTX
 /* 
   drsuapi_DsReplicaGetInfo 
 */
-static WERROR drsuapi_DsReplicaGetInfo(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_drsuapi_DsReplicaGetInfo(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct drsuapi_DsReplicaGetInfo *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -326,7 +766,7 @@ static WERROR drsuapi_DsReplicaGetInfo(struct dcesrv_call_state *dce_call, TALLO
 /* 
   DRSUAPI_ADD_SID_HISTORY 
 */
-static WERROR DRSUAPI_ADD_SID_HISTORY(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_DRSUAPI_ADD_SID_HISTORY(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct DRSUAPI_ADD_SID_HISTORY *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -335,7 +775,7 @@ static WERROR DRSUAPI_ADD_SID_HISTORY(struct dcesrv_call_state *dce_call, TALLOC
 /* 
   drsuapi_DsGetMemberships2 
 */
-static WERROR drsuapi_DsGetMemberships2(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_drsuapi_DsGetMemberships2(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct drsuapi_DsGetMemberships2 *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -344,7 +784,7 @@ static WERROR drsuapi_DsGetMemberships2(struct dcesrv_call_state *dce_call, TALL
 /* 
   DRSUAPI_REPLICA_VERIFY_OBJECTS 
 */
-static WERROR DRSUAPI_REPLICA_VERIFY_OBJECTS(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_DRSUAPI_REPLICA_VERIFY_OBJECTS(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct DRSUAPI_REPLICA_VERIFY_OBJECTS *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -354,7 +794,7 @@ static WERROR DRSUAPI_REPLICA_VERIFY_OBJECTS(struct dcesrv_call_state *dce_call,
 /* 
   DRSUAPI_GET_OBJECT_EXISTENCE 
 */
-static WERROR DRSUAPI_GET_OBJECT_EXISTENCE(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+static WERROR dcesrv_DRSUAPI_GET_OBJECT_EXISTENCE(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
                       struct DRSUAPI_GET_OBJECT_EXISTENCE *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
@@ -362,10 +802,10 @@ static WERROR DRSUAPI_GET_OBJECT_EXISTENCE(struct dcesrv_call_state *dce_call, T
 
 
 /* 
-  DRSUAPI_QUERY_SITES_BY_COST 
+  drsuapi_QuerySitesByCost 
 */
-static WERROR DRSUAPI_QUERY_SITES_BY_COST(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
-                      struct DRSUAPI_QUERY_SITES_BY_COST *r)
+static WERROR dcesrv_drsuapi_QuerySitesByCost(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
+                      struct drsuapi_QuerySitesByCost *r)
 {
        DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
 }