r26003: Split up DB_WRAP, as first step in an attempt to sanitize dependencies.
[kai/samba.git] / source4 / cldap_server / rootdse.c
1 /* 
2    Unix SMB/CIFS implementation.
3
4    CLDAP server - rootdse handling
5
6    Copyright (C) Stefan Metzmacher      2006
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 "libcli/ldap/ldap.h"
24 #include "lib/ldb/include/ldb.h"
25 #include "lib/ldb/include/ldb_errors.h"
26 #include "lib/events/events.h"
27 #include "lib/socket/socket.h"
28 #include "smbd/service_task.h"
29 #include "cldap_server/cldap_server.h"
30 #include "librpc/gen_ndr/ndr_misc.h"
31 #include "dsdb/samdb/samdb.h"
32 #include "auth/auth.h"
33 #include "ldb_wrap.h"
34 #include "system/network.h"
35 #include "lib/socket/netif.h"
36
37 static void cldapd_rootdse_fill(struct cldapd_server *cldapd,
38                                 TALLOC_CTX *mem_ctx,
39                                 struct ldap_SearchRequest *search,
40                                 struct ldap_SearchResEntry **response,
41                                 struct ldap_Result *result)
42 {
43         struct ldap_SearchResEntry *ent = NULL;
44         struct ldb_dn *basedn;
45         struct ldb_result *res = NULL;
46         struct ldb_request *lreq;
47         enum ldb_scope scope = LDB_SCOPE_DEFAULT;
48         const char **attrs = NULL;
49         const char *errstr = NULL;
50         int ret = 0;
51         int ldb_ret = -1;
52
53         basedn = ldb_dn_new(mem_ctx, cldapd->samctx, NULL);
54         if (basedn == NULL) goto nomem;
55         scope = LDB_SCOPE_BASE;
56
57         if (search->num_attributes >= 1) {
58                 int i;
59
60                 attrs = talloc_array(mem_ctx, const char *, search->num_attributes+1);
61                 if (attrs == NULL) goto nomem;
62
63                 for (i=0; i < search->num_attributes; i++) {
64                         attrs[i] = search->attributes[i];
65                 }
66                 attrs[i] = NULL;
67         }
68
69         lreq = talloc(mem_ctx, struct ldb_request);
70         if (lreq == NULL) goto nomem;
71
72         res = talloc_zero(mem_ctx, struct ldb_result);
73         if (res == NULL) goto nomem;
74
75         lreq->operation = LDB_SEARCH;
76         lreq->op.search.base = basedn;
77         lreq->op.search.scope = scope;
78         lreq->op.search.tree = search->tree;
79         lreq->op.search.attrs = attrs;
80
81         lreq->controls = NULL;
82
83         lreq->context = res;
84         lreq->callback = ldb_search_default_callback;
85
86         /* Copy the timeout from the incoming call */
87         ldb_set_timeout(cldapd->samctx, lreq, search->timelimit);
88
89         ldb_ret = ldb_request(cldapd->samctx, lreq);
90         if (ldb_ret != LDB_SUCCESS) {
91                 goto reply;
92         }
93
94         ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
95         if (ldb_ret != LDB_SUCCESS) {
96                 goto reply;
97         }
98
99         if (res->count > 1) {
100                 errstr = "Internal error: to much replies";
101                 ldb_ret = LDB_ERR_OTHER;
102                 goto reply;
103         } else if (res->count == 1) {
104                 int j;
105
106                 ent = talloc(mem_ctx, struct ldap_SearchResEntry);
107                 if (ent == NULL) goto nomem;
108
109                 ent->dn = ldb_dn_alloc_linearized(ent, res->msgs[0]->dn);
110                 if (ent->dn == NULL) goto nomem;
111                 ent->num_attributes = 0;
112                 ent->attributes = NULL;
113                 if (res->msgs[0]->num_elements == 0) {
114                         goto reply;
115                 }
116                 ent->num_attributes = res->msgs[0]->num_elements;
117                 ent->attributes = talloc_array(ent, struct ldb_message_element, ent->num_attributes);
118                 if (ent->attributes == NULL) goto nomem;
119                 for (j=0; j < ent->num_attributes; j++) {
120                         ent->attributes[j].name = talloc_steal(ent->attributes, res->msgs[0]->elements[j].name);
121                         ent->attributes[j].num_values = 0;
122                         ent->attributes[j].values = NULL;
123                         if (search->attributesonly && (res->msgs[0]->elements[j].num_values == 0)) {
124                                 continue;
125                         }
126                         ent->attributes[j].num_values = res->msgs[0]->elements[j].num_values;
127                         ent->attributes[j].values = res->msgs[0]->elements[j].values;
128                         talloc_steal(ent->attributes, res->msgs[0]->elements[j].values);
129                 }
130         }
131
132 reply:
133         if (ret) {
134                 /* nothing ... */
135         } else if (ldb_ret == LDB_SUCCESS) {
136                 ret = LDAP_SUCCESS;
137                 errstr = NULL;
138         } else {
139                 ret = ldb_ret;
140                 errstr = ldb_errstring(cldapd->samctx);
141         }
142         goto done;
143 nomem:
144         talloc_free(ent);
145         ret = LDAP_OPERATIONS_ERROR;
146         errstr = "No memory";
147 done:
148         *response = ent;
149         result->resultcode = ret;
150         result->errormessage = (errstr?talloc_strdup(mem_ctx, errstr):NULL);
151 }
152
153 /*
154   handle incoming cldap requests
155 */
156 void cldapd_rootdse_request(struct cldap_socket *cldap, 
157                             uint32_t message_id,
158                             struct ldap_SearchRequest *search,
159                             struct socket_address *src)
160 {
161         struct cldapd_server *cldapd = talloc_get_type(cldap->incoming.private, struct cldapd_server);
162         NTSTATUS status;
163         struct cldap_reply reply;
164         struct ldap_Result result;
165         TALLOC_CTX *tmp_ctx = talloc_new(cldap);
166
167         ZERO_STRUCT(result);
168
169         reply.messageid         = message_id;
170         reply.dest              = src;
171         reply.response          = NULL;
172         reply.result            = &result;
173
174         cldapd_rootdse_fill(cldapd, tmp_ctx, search, &reply.response, reply.result);
175
176         status = cldap_reply_send(cldap, &reply);
177         if (!NT_STATUS_IS_OK(status)) {
178                 DEBUG(2,("cldap rootdse query failed '%s' - %s\n",
179                          ldb_filter_from_tree(tmp_ctx, search->tree), nt_errstr(status)));
180         }
181
182         talloc_free(tmp_ctx);
183         return;
184 }