s4-drsserver: sort by DN to give tree order
[kamenim/samba.git] / source4 / rpc_server / drsuapi / drsutil.c
1 /* 
2    Unix SMB/CIFS implementation.
3
4    useful utilities for the DRS server
5
6    Copyright (C) Andrew Tridgell 2009
7    
8    This program is free software; you can redistribute it and/or modify
9    it under the terms of the GNU General Public License as published by
10    the Free Software Foundation; either version 3 of the License, or
11    (at your option) any later version.
12    
13    This program is distributed in the hope that it will be useful,
14    but WITHOUT ANY WARRANTY; without even the implied warranty of
15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16    GNU General Public License for more details.
17    
18    You should have received a copy of the GNU General Public License
19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include "includes.h"
23 #include "rpc_server/dcerpc_server.h"
24 #include "dsdb/samdb/samdb.h"
25 #include "libcli/security/dom_sid.h"
26 #include "rpc_server/drsuapi/dcesrv_drsuapi.h"
27 #include "libcli/security/security.h"
28 #include "param/param.h"
29
30 /*
31   format a drsuapi_DsReplicaObjectIdentifier naming context as a string
32  */
33 char *drs_ObjectIdentifier_to_string(TALLOC_CTX *mem_ctx,
34                                      struct drsuapi_DsReplicaObjectIdentifier *nc)
35 {
36         char *guid, *sid, *ret;
37         guid = GUID_string(mem_ctx, &nc->guid);
38         sid  = dom_sid_string(mem_ctx, &nc->sid);
39         ret = talloc_asprintf(mem_ctx, "<GUID=%s>;<SID=%s>;%s",
40                               guid, sid, nc->dn);
41         talloc_free(guid);
42         talloc_free(sid);
43         return ret;
44 }
45
46 int drsuapi_search_with_extended_dn(struct ldb_context *ldb,
47                                     TALLOC_CTX *mem_ctx,
48                                     struct ldb_result **_res,
49                                     struct ldb_dn *basedn,
50                                     enum ldb_scope scope,
51                                     const char * const *attrs,
52                                     const char *sort_attrib,
53                                     const char *format, ...)
54 {
55         va_list ap;
56         int ret;
57         struct ldb_request *req;
58         char *filter;
59         TALLOC_CTX *tmp_ctx;
60         struct ldb_result *res;
61
62         tmp_ctx = talloc_new(mem_ctx);
63
64         res = talloc_zero(tmp_ctx, struct ldb_result);
65         if (!res) {
66                 return LDB_ERR_OPERATIONS_ERROR;
67         }
68
69         va_start(ap, format);
70         filter = talloc_vasprintf(tmp_ctx, format, ap);
71         va_end(ap);
72
73         if (filter == NULL) {
74                 talloc_free(tmp_ctx);
75                 return LDB_ERR_OPERATIONS_ERROR;
76         }
77
78         ret = ldb_build_search_req(&req, ldb, tmp_ctx,
79                                    basedn,
80                                    scope,
81                                    filter,
82                                    attrs,
83                                    NULL,
84                                    res,
85                                    ldb_search_default_callback,
86                                    NULL);
87         if (ret != LDB_SUCCESS) {
88                 talloc_free(tmp_ctx);
89                 return ret;
90         }
91
92         ret = ldb_request_add_control(req, LDB_CONTROL_EXTENDED_DN_OID, true, NULL);
93         if (ret != LDB_SUCCESS) {
94                 return ret;
95         }
96
97         if (sort_attrib) {
98                 struct ldb_server_sort_control *sort_control;
99                 sort_control = talloc(req, struct ldb_server_sort_control);
100                 if (sort_control == NULL) {
101                         talloc_free(tmp_ctx);
102                         return LDB_ERR_OPERATIONS_ERROR;
103                 }
104                 sort_control->attributeName = sort_attrib;
105                 sort_control->orderingRule = NULL;
106                 sort_control->reverse = 1;
107
108                 ret = ldb_request_add_control(req, LDB_CONTROL_SERVER_SORT_OID, true, sort_control);
109                 if (ret != LDB_SUCCESS) {
110                         return ret;
111                 }
112         }
113
114
115         ret = ldb_request(ldb, req);
116         if (ret == LDB_SUCCESS) {
117                 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
118         }
119
120         talloc_free(req);
121         *_res = res;
122         return ret;
123 }
124
125 WERROR drs_security_level_check(struct dcesrv_call_state *dce_call, const char* call)
126 {
127         if (lp_parm_bool(dce_call->conn->dce_ctx->lp_ctx, NULL, 
128                          "drs", "disable_sec_check", false)) {
129                 return WERR_OK;
130         }
131
132         if (security_session_user_level(dce_call->conn->auth_state.session_info) <
133                 SECURITY_DOMAIN_CONTROLLER) {
134                 DEBUG(0,("DsReplicaGetInfo refused for security token\n"));
135                 return WERR_DS_DRA_ACCESS_DENIED;
136         }
137
138         return WERR_OK;
139 }