9a9765b564f475d025bb01def1c98cd289fe803a
[gd/samba-autobuild/.git] / source4 / winbind / wb_samba3_protocol.c
1 /* 
2    Unix SMB/CIFS implementation.
3    Main winbindd samba3 server routines
4
5    Copyright (C) Stefan Metzmacher      2005
6    Copyright (C) Volker Lendecke        2005
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 "winbind/wb_server.h"
24 #include "smbd/service_stream.h"
25 #include "lib/stream/packet.h"
26
27 /*
28   work out if a packet is complete for protocols that use a 32 bit host byte
29   order length
30 */
31 NTSTATUS wbsrv_samba3_packet_full_request(void *private, DATA_BLOB blob, size_t *size)
32 {
33         uint32_t *len;
34         if (blob.length < 4) {
35                 return STATUS_MORE_ENTRIES;
36         }
37         len = (uint32_t *)blob.data;
38         *size = (*len);
39         if (*size > blob.length) {
40                 return STATUS_MORE_ENTRIES;
41         }
42         return NT_STATUS_OK;
43 }
44
45
46 NTSTATUS wbsrv_samba3_pull_request(DATA_BLOB blob, struct wbsrv_connection *wbconn,
47                                    struct wbsrv_samba3_call **_call)
48 {
49         struct wbsrv_samba3_call *call;
50
51         if (blob.length != sizeof(call->request)) {
52                 DEBUG(0,("wbsrv_samba3_pull_request: invalid blob length %lu should be %lu\n"
53                          " make sure you use the correct winbind client tools!\n",
54                          (long)blob.length, (long)sizeof(call->request)));
55                 return NT_STATUS_INVALID_PARAMETER;
56         }
57
58         call = talloc_zero(wbconn, struct wbsrv_samba3_call);
59         NT_STATUS_HAVE_NO_MEMORY(call);
60
61         /* the packet layout is the same as the in memory layout of the request, so just copy it */
62         memcpy(&call->request, blob.data, sizeof(call->request));
63
64         call->wbconn = wbconn;
65         call->event_ctx = call->wbconn->conn->event.ctx;
66         
67         *_call = call;
68         return NT_STATUS_OK;
69 }
70
71 NTSTATUS wbsrv_samba3_handle_call(struct wbsrv_samba3_call *s3call)
72 {
73         DEBUG(10, ("Got winbind samba3 request %d\n", s3call->request.cmd));
74
75         s3call->response.length = sizeof(s3call->response);
76
77         switch(s3call->request.cmd) {
78         case WINBINDD_INTERFACE_VERSION:
79                 return wbsrv_samba3_interface_version(s3call);
80
81         case WINBINDD_CHECK_MACHACC:
82                 return wbsrv_samba3_check_machacc(s3call);
83
84         case WINBINDD_PING:
85                 return wbsrv_samba3_ping(s3call);
86
87         case WINBINDD_INFO:
88                 return wbsrv_samba3_info(s3call);
89
90         case WINBINDD_DOMAIN_NAME:
91                 return wbsrv_samba3_domain_name(s3call);
92
93         case WINBINDD_NETBIOS_NAME:
94                 return wbsrv_samba3_netbios_name(s3call);
95
96         case WINBINDD_PRIV_PIPE_DIR:
97                 return wbsrv_samba3_priv_pipe_dir(s3call);
98
99         case WINBINDD_LOOKUPNAME:
100                 return wbsrv_samba3_lookupname(s3call);
101
102         case WINBINDD_LOOKUPSID:
103                 return wbsrv_samba3_lookupsid(s3call);
104
105         case WINBINDD_PAM_AUTH:
106                 return wbsrv_samba3_pam_auth(s3call);
107
108         case WINBINDD_PAM_AUTH_CRAP:
109                 return wbsrv_samba3_pam_auth_crap(s3call);
110
111         case WINBINDD_GETDCNAME:
112                 return wbsrv_samba3_getdcname(s3call);
113
114         case WINBINDD_GETUSERDOMGROUPS:
115                 return wbsrv_samba3_userdomgroups(s3call);
116
117         case WINBINDD_GETUSERSIDS:
118                 return wbsrv_samba3_usersids(s3call);
119
120         case WINBINDD_LIST_TRUSTDOM:
121                 return wbsrv_samba3_list_trustdom(s3call);
122
123         case WINBINDD_LIST_USERS:
124                 return wbsrv_samba3_list_users(s3call);
125
126         case WINBINDD_GETPWNAM:
127                 return wbsrv_samba3_getpwnam(s3call);
128
129         case WINBINDD_GETPWUID:
130                 return wbsrv_samba3_getpwuid(s3call);
131
132         case WINBINDD_SETPWENT:
133                 return wbsrv_samba3_setpwent(s3call);
134
135         case WINBINDD_GETPWENT:
136                 return wbsrv_samba3_getpwent(s3call);
137
138         case WINBINDD_ENDPWENT:
139                 return wbsrv_samba3_endpwent(s3call);
140
141         case WINBINDD_GETGRNAM:
142                 return wbsrv_samba3_getgrnam(s3call);
143
144         case WINBINDD_GETGRGID:
145                 return wbsrv_samba3_getgrgid(s3call);
146
147         case WINBINDD_GETGROUPS:
148                 return wbsrv_samba3_getgroups(s3call);
149
150         case WINBINDD_SETGRENT:
151                 return wbsrv_samba3_setgrent(s3call);
152
153         case WINBINDD_GETGRENT:
154                 return wbsrv_samba3_getgrent(s3call);
155
156         case WINBINDD_ENDGRENT:
157                 return wbsrv_samba3_endgrent(s3call);
158
159         case WINBINDD_SID_TO_UID:
160         case WINBINDD_DUAL_SID2UID:
161                 return wbsrv_samba3_sid2uid(s3call);
162
163         case WINBINDD_SID_TO_GID:
164         case WINBINDD_DUAL_SID2GID:
165                 return wbsrv_samba3_sid2gid(s3call);
166
167         case WINBINDD_UID_TO_SID:
168         case WINBINDD_DUAL_UID2SID:
169                 return wbsrv_samba3_uid2sid(s3call);
170
171         case WINBINDD_GID_TO_SID:
172         case WINBINDD_DUAL_GID2SID:
173                 return wbsrv_samba3_gid2sid(s3call);
174
175                 /* Unimplemented commands */
176
177         case WINBINDD_PAM_CHAUTHTOK:
178         case WINBINDD_PAM_LOGOFF:
179         case WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP:
180         case WINBINDD_LIST_GROUPS:
181         case WINBINDD_LOOKUPRIDS:
182         case WINBINDD_SIDS_TO_XIDS:
183         case WINBINDD_ALLOCATE_UID:
184         case WINBINDD_ALLOCATE_GID:
185         case WINBINDD_SET_MAPPING:
186         case WINBINDD_REMOVE_MAPPING:
187         case WINBINDD_SET_HWM:
188         case WINBINDD_DOMAIN_INFO:
189         case WINBINDD_SHOW_SEQUENCE:
190         case WINBINDD_WINS_BYIP:
191         case WINBINDD_WINS_BYNAME:
192         case WINBINDD_GETGRLST:
193         case WINBINDD_DSGETDCNAME:
194         case WINBINDD_INIT_CONNECTION:
195         case WINBINDD_DUAL_SIDS2XIDS:
196         case WINBINDD_DUAL_SET_MAPPING:
197         case WINBINDD_DUAL_REMOVE_MAPPING:
198         case WINBINDD_DUAL_SET_HWM:
199         case WINBINDD_DUAL_USERINFO:
200         case WINBINDD_DUAL_GETSIDALIASES:
201         case WINBINDD_CCACHE_NTLMAUTH:
202         case WINBINDD_NUM_CMDS:
203                 DEBUG(10, ("Unimplemented winbind samba3 request %d\n", 
204                            s3call->request.cmd));
205                 break;
206         }
207
208         s3call->response.result = WINBINDD_ERROR;
209         return NT_STATUS_OK;
210 }
211
212 static NTSTATUS wbsrv_samba3_push_reply(struct wbsrv_samba3_call *call, TALLOC_CTX *mem_ctx, DATA_BLOB *_blob)
213 {
214         DATA_BLOB blob;
215         uint8_t *extra_data;
216         size_t extra_data_len = 0;
217
218         extra_data = (uint8_t *)call->response.extra_data.data;
219         if (extra_data != NULL) {
220                 extra_data_len = call->response.length -
221                         sizeof(call->response);
222         }
223
224         blob = data_blob_talloc(mem_ctx, NULL, call->response.length);
225         NT_STATUS_HAVE_NO_MEMORY(blob.data);
226
227         /* don't push real pointer values into sockets */
228         if (extra_data) {
229                 call->response.extra_data.data = (void *)0xFFFFFFFF;
230         }
231         memcpy(blob.data, &call->response, sizeof(call->response));
232         /* set back the pointer */
233         call->response.extra_data.data = extra_data;
234
235         if (extra_data) {
236                 memcpy(blob.data + sizeof(call->response), extra_data, extra_data_len);
237         }
238
239         *_blob = blob;
240         return NT_STATUS_OK;
241 }
242
243 /*
244  * queue a wbsrv_call reply on a wbsrv_connection
245  * NOTE: that this implies talloc_free(call),
246  *       use talloc_reference(call) if you need it after
247  *       calling wbsrv_queue_reply
248  */
249 NTSTATUS wbsrv_samba3_send_reply(struct wbsrv_samba3_call *call)
250 {
251         struct wbsrv_connection *wbconn = call->wbconn;
252         DATA_BLOB rep;
253         NTSTATUS status;
254
255         status = wbsrv_samba3_push_reply(call, call, &rep);
256         NT_STATUS_NOT_OK_RETURN(status);
257
258         status = packet_send(call->wbconn->packet, rep);
259         
260         talloc_free(call);
261
262         if (!NT_STATUS_IS_OK(status)) {
263                 wbsrv_terminate_connection(wbconn,
264                                            "failed to packet_send winbindd reply");
265                 return status;
266         }
267         /* the call isn't needed any more */
268         return status;
269 }
270
271 NTSTATUS wbsrv_samba3_process(void *private, DATA_BLOB blob)
272 {
273         NTSTATUS status;
274         struct wbsrv_connection *wbconn = talloc_get_type(private, 
275                                                           struct wbsrv_connection);
276         struct wbsrv_samba3_call *call;
277         status = wbsrv_samba3_pull_request(blob, wbconn, &call);
278         
279         if (!NT_STATUS_IS_OK(status)) {
280                 return status;
281         }
282         
283         status = wbsrv_samba3_handle_call(call);
284
285         if (!NT_STATUS_IS_OK(status)) {
286                 talloc_free(call);
287                 return status;
288         }
289
290         if (call->flags & WBSRV_CALL_FLAGS_REPLY_ASYNC) {
291                 return NT_STATUS_OK;
292         }
293
294         status = wbsrv_samba3_send_reply(call);
295         return status;
296 }
297