tests/samba-tool: add tests for new computer management commands
[samba.git] / source4 / libnet / libnet_site.c
1 /*
2    Unix SMB/CIFS implementation.
3
4    Copyright (C) Brad Henry     2005
5
6    This program is free software; you can redistribute it and/or modify
7    it under the terms of the GNU General Public License as published by
8    the Free Software Foundation; either version 3 of the License, or
9    (at your option) any later version.
10
11    This program is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14    GNU General Public License for more details.
15
16    You should have received a copy of the GNU General Public License
17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "includes.h"
21 #include "libnet/libnet.h"
22 #include "libcli/cldap/cldap.h"
23 #include <ldb.h>
24 #include <ldb_errors.h>
25 #include "libcli/resolve/resolve.h"
26 #include "param/param.h"
27 #include "lib/tsocket/tsocket.h"
28
29 /**
30  * 1. Setup a CLDAP socket.
31  * 2. Lookup the default Site-Name.
32  */
33 NTSTATUS libnet_FindSite(TALLOC_CTX *ctx, struct libnet_context *lctx, struct libnet_JoinSite *r)
34 {
35         NTSTATUS status;
36         TALLOC_CTX *tmp_ctx;
37
38         char *site_name_str;
39         char *config_dn_str;
40         char *server_dn_str;
41
42         struct cldap_socket *cldap = NULL;
43         struct cldap_netlogon search;
44         int ret;
45         struct tsocket_address *dest_address;
46
47         tmp_ctx = talloc_named(ctx, 0, "libnet_FindSite temp context");
48         if (!tmp_ctx) {
49                 r->out.error_string = NULL;
50                 return NT_STATUS_NO_MEMORY;
51         }
52
53         /* Resolve the site name. */
54         ZERO_STRUCT(search);
55         search.in.dest_address = NULL;
56         search.in.dest_port = 0;
57         search.in.acct_control = -1;
58         search.in.version = NETLOGON_NT_VERSION_5 | NETLOGON_NT_VERSION_5EX;
59         search.in.map_response = true;
60
61         ret = tsocket_address_inet_from_strings(tmp_ctx, "ip",
62                                                 r->in.dest_address,
63                                                 r->in.cldap_port,
64                                                 &dest_address);
65         if (ret != 0) {
66                 r->out.error_string = NULL;
67                 status = map_nt_error_from_unix_common(errno);
68                 talloc_free(tmp_ctx);
69                 return status;
70         }
71
72         /* we want to use non async calls, so we're not passing an event context */
73         status = cldap_socket_init(tmp_ctx, NULL, dest_address, &cldap);
74         if (!NT_STATUS_IS_OK(status)) {
75                 talloc_free(tmp_ctx);
76                 r->out.error_string = NULL;
77                 return status;
78         }
79         status = cldap_netlogon(cldap, tmp_ctx, &search);
80         if (!NT_STATUS_IS_OK(status)
81             || search.out.netlogon.data.nt5_ex.client_site == NULL
82             || search.out.netlogon.data.nt5_ex.client_site[0] == '\0') {
83                 /*
84                   If cldap_netlogon() returns in error,
85                   default to using Default-First-Site-Name.
86                 */
87                 site_name_str = talloc_asprintf(tmp_ctx, "%s",
88                                                 "Default-First-Site-Name");
89                 if (!site_name_str) {
90                         r->out.error_string = NULL;
91                         talloc_free(tmp_ctx);
92                         return NT_STATUS_NO_MEMORY;
93                 }
94         } else {
95                 site_name_str = talloc_asprintf(tmp_ctx, "%s",
96                                         search.out.netlogon.data.nt5_ex.client_site);
97                 if (!site_name_str) {
98                         r->out.error_string = NULL;
99                         talloc_free(tmp_ctx);
100                         return NT_STATUS_NO_MEMORY;
101                 }
102         }
103
104         /* Generate the CN=Configuration,... DN. */
105 /* TODO: look it up! */
106         config_dn_str = talloc_asprintf(tmp_ctx, "CN=Configuration,%s", r->in.domain_dn_str);
107         if (!config_dn_str) {
108                 r->out.error_string = NULL;
109                 talloc_free(tmp_ctx);
110                 return NT_STATUS_NO_MEMORY;
111         }
112
113         /* Generate the CN=Servers,... DN. */
114         server_dn_str = talloc_asprintf(tmp_ctx, "CN=%s,CN=Servers,CN=%s,CN=Sites,%s",
115                                                  r->in.netbios_name, site_name_str, config_dn_str);
116         if (!server_dn_str) {
117                 r->out.error_string = NULL;
118                 talloc_free(tmp_ctx);
119                 return NT_STATUS_NO_MEMORY;
120         }
121
122         r->out.site_name_str = site_name_str;
123         talloc_steal(r, site_name_str);
124
125         r->out.config_dn_str = config_dn_str;
126         talloc_steal(r, config_dn_str);
127
128         r->out.server_dn_str = server_dn_str;
129         talloc_steal(r, server_dn_str);
130
131         talloc_free(tmp_ctx);
132         return NT_STATUS_OK;
133 }
134
135 /*
136  * find out Site specific stuff:
137  * 1. Lookup the Site name.
138  * 2. Add entry CN=<netbios name>,CN=Servers,CN=<site name>,CN=Sites,CN=Configuration,<domain dn>.
139  * TODO: 3.) use DsAddEntry() to create CN=NTDS Settings,CN=<netbios name>,CN=Servers,CN=<site name>,...
140  */
141 NTSTATUS libnet_JoinSite(struct libnet_context *ctx, 
142                          struct ldb_context *remote_ldb,
143                          struct libnet_JoinDomain *libnet_r)
144 {
145         NTSTATUS status;
146         TALLOC_CTX *tmp_ctx;
147
148         struct libnet_JoinSite *r;
149
150         struct ldb_dn *server_dn;
151         struct ldb_message *msg;
152         int rtn;
153
154         const char *server_dn_str;
155         const char *host;
156         struct nbt_name name;
157         const char *dest_addr = NULL;
158
159         tmp_ctx = talloc_named(libnet_r, 0, "libnet_JoinSite temp context");
160         if (!tmp_ctx) {
161                 libnet_r->out.error_string = NULL;
162                 return NT_STATUS_NO_MEMORY;
163         }
164
165         r = talloc(tmp_ctx, struct libnet_JoinSite);
166         if (!r) {
167                 libnet_r->out.error_string = NULL;
168                 talloc_free(tmp_ctx);
169                 return NT_STATUS_NO_MEMORY;
170         }
171
172         host = dcerpc_binding_get_string_option(libnet_r->out.samr_binding, "host");
173         make_nbt_name_client(&name, host);
174         status = resolve_name_ex(lpcfg_resolve_context(ctx->lp_ctx),
175                                  0, 0,
176                                  &name, r, &dest_addr, ctx->event_ctx);
177         if (!NT_STATUS_IS_OK(status)) {
178                 libnet_r->out.error_string = NULL;
179                 talloc_free(tmp_ctx);
180                 return status;
181         }
182
183         /* Resolve the site name and AD DN's. */
184         r->in.dest_address = dest_addr;
185         r->in.netbios_name = libnet_r->in.netbios_name;
186         r->in.domain_dn_str = libnet_r->out.domain_dn_str;
187         r->in.cldap_port = lpcfg_cldap_port(ctx->lp_ctx);
188
189         status = libnet_FindSite(tmp_ctx, ctx, r);
190         if (!NT_STATUS_IS_OK(status)) {
191                 libnet_r->out.error_string =
192                         talloc_steal(libnet_r, r->out.error_string);
193                 talloc_free(tmp_ctx);
194                 return status;
195         }
196
197         server_dn_str = r->out.server_dn_str;
198
199         /*
200          Add entry CN=<netbios name>,CN=Servers,CN=<site name>,CN=Sites,CN=Configuration,<domain dn>.
201         */
202         msg = ldb_msg_new(tmp_ctx);
203         if (!msg) {
204                 libnet_r->out.error_string = NULL;
205                 talloc_free(tmp_ctx);
206                 return NT_STATUS_NO_MEMORY;
207         }
208
209         rtn = ldb_msg_add_string(msg, "objectClass", "server");
210         if (rtn != LDB_SUCCESS) {
211                 libnet_r->out.error_string = NULL;
212                 talloc_free(tmp_ctx);
213                 return NT_STATUS_NO_MEMORY;
214         }
215         rtn = ldb_msg_add_string(msg, "systemFlags", "50000000");
216         if (rtn != LDB_SUCCESS) {
217                 libnet_r->out.error_string = NULL;
218                 talloc_free(tmp_ctx);
219                 return NT_STATUS_NO_MEMORY;
220         }
221         rtn = ldb_msg_add_string(msg, "serverReference", libnet_r->out.account_dn_str);
222         if (rtn != LDB_SUCCESS) {
223                 libnet_r->out.error_string = NULL;
224                 talloc_free(tmp_ctx);
225                 return NT_STATUS_NO_MEMORY;
226         }
227
228         server_dn = ldb_dn_new(tmp_ctx, remote_ldb, server_dn_str);
229         if ( ! ldb_dn_validate(server_dn)) {
230                 libnet_r->out.error_string = talloc_asprintf(libnet_r,
231                                         "Invalid server dn: %s",
232                                         server_dn_str);
233                 talloc_free(tmp_ctx);
234                 return NT_STATUS_UNSUCCESSFUL;
235         }
236
237         msg->dn = server_dn;
238
239         rtn = ldb_add(remote_ldb, msg);
240         if (rtn == LDB_ERR_ENTRY_ALREADY_EXISTS) {
241                 unsigned int i;
242
243                 /* make a 'modify' msg, and only for serverReference */
244                 msg = ldb_msg_new(tmp_ctx);
245                 if (!msg) {
246                         libnet_r->out.error_string = NULL;
247                         talloc_free(tmp_ctx);
248                         return NT_STATUS_NO_MEMORY;
249                 }
250                 msg->dn = server_dn;
251
252                 rtn = ldb_msg_add_string(msg, "serverReference",libnet_r->out.account_dn_str);
253                 if (rtn != LDB_SUCCESS) {
254                         libnet_r->out.error_string = NULL;
255                         talloc_free(tmp_ctx);
256                         return NT_STATUS_NO_MEMORY;
257                 }
258
259                 /* mark all the message elements (should be just one)
260                    as LDB_FLAG_MOD_REPLACE */
261                 for (i=0;i<msg->num_elements;i++) {
262                         msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
263                 }
264
265                 rtn = ldb_modify(remote_ldb, msg);
266                 if (rtn != LDB_SUCCESS) {
267                         libnet_r->out.error_string
268                                 = talloc_asprintf(libnet_r,
269                                                   "Failed to modify server entry %s: %s: %d",
270                                                   server_dn_str,
271                                                   ldb_errstring(remote_ldb), rtn);
272                         talloc_free(tmp_ctx);
273                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
274                 }
275         } else if (rtn != LDB_SUCCESS) {
276                 libnet_r->out.error_string
277                         = talloc_asprintf(libnet_r,
278                                 "Failed to add server entry %s: %s: %d",
279                                 server_dn_str, ldb_errstring(remote_ldb),
280                                 rtn);
281                 talloc_free(tmp_ctx);
282                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
283         }
284         DEBUG(0, ("We still need to perform a DsAddEntry() so that we can create the CN=NTDS Settings container.\n"));
285
286         /* Store the server DN in libnet_r */
287         libnet_r->out.server_dn_str = server_dn_str;
288         talloc_steal(libnet_r, server_dn_str);
289
290         talloc_free(tmp_ctx);
291         return NT_STATUS_OK;
292 }