Register types rather than constructors, display structs as classes.
[jelmer/samba4-debian.git] / source / 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 #if 0
82         case WINBINDD_CHECK_MACHACC:
83                 return wbsrv_samba3_check_machacc(s3call);
84 #endif
85
86         case WINBINDD_PING:
87                 return wbsrv_samba3_ping(s3call);
88
89         case WINBINDD_INFO:
90                 return wbsrv_samba3_info(s3call);
91
92         case WINBINDD_DOMAIN_NAME:
93                 return wbsrv_samba3_domain_name(s3call);
94
95         case WINBINDD_NETBIOS_NAME:
96                 return wbsrv_samba3_netbios_name(s3call);
97
98         case WINBINDD_PRIV_PIPE_DIR:
99                 return wbsrv_samba3_priv_pipe_dir(s3call);
100
101         case WINBINDD_LOOKUPNAME:
102                 return wbsrv_samba3_lookupname(s3call);
103
104         case WINBINDD_LOOKUPSID:
105                 return wbsrv_samba3_lookupsid(s3call);
106
107         case WINBINDD_PAM_AUTH:
108                 return wbsrv_samba3_pam_auth(s3call);
109
110         case WINBINDD_PAM_AUTH_CRAP:
111                 return wbsrv_samba3_pam_auth_crap(s3call);
112
113         case WINBINDD_GETDCNAME:
114                 return wbsrv_samba3_getdcname(s3call);
115
116         case WINBINDD_GETUSERDOMGROUPS:
117                 return wbsrv_samba3_userdomgroups(s3call);
118
119         case WINBINDD_GETUSERSIDS:
120                 return wbsrv_samba3_usersids(s3call);
121
122         case WINBINDD_LIST_TRUSTDOM:
123                 return wbsrv_samba3_list_trustdom(s3call);
124
125         case WINBINDD_LIST_USERS:
126                 return wbsrv_samba3_list_users(s3call);
127
128         case WINBINDD_GETPWNAM:
129                 return wbsrv_samba3_getpwnam(s3call);
130
131         case WINBINDD_GETPWUID:
132                 return wbsrv_samba3_getpwuid(s3call);
133
134         case WINBINDD_SETPWENT:
135                 return wbsrv_samba3_setpwent(s3call);
136
137         case WINBINDD_GETPWENT:
138                 return wbsrv_samba3_getpwent(s3call);
139
140         case WINBINDD_ENDPWENT:
141                 return wbsrv_samba3_endpwent(s3call);
142
143         case WINBINDD_GETGRNAM:
144                 return wbsrv_samba3_getgrnam(s3call);
145
146         case WINBINDD_GETGRGID:
147                 return wbsrv_samba3_getgrgid(s3call);
148
149         case WINBINDD_GETGROUPS:
150                 return wbsrv_samba3_getgroups(s3call);
151
152         case WINBINDD_SETGRENT:
153                 return wbsrv_samba3_setgrent(s3call);
154
155         case WINBINDD_GETGRENT:
156                 return wbsrv_samba3_getgrent(s3call);
157
158         case WINBINDD_ENDGRENT:
159                 return wbsrv_samba3_endgrent(s3call);
160
161         case WINBINDD_SID_TO_UID:
162         case WINBINDD_DUAL_SID2UID:
163                 return wbsrv_samba3_sid2uid(s3call);
164
165         case WINBINDD_SID_TO_GID:
166         case WINBINDD_DUAL_SID2GID:
167                 return wbsrv_samba3_sid2gid(s3call);
168
169         case WINBINDD_UID_TO_SID:
170         case WINBINDD_DUAL_UID2SID:
171                 return wbsrv_samba3_uid2sid(s3call);
172
173         case WINBINDD_GID_TO_SID:
174         case WINBINDD_DUAL_GID2SID:
175                 return wbsrv_samba3_gid2sid(s3call);
176
177                 /* Unimplemented commands */
178
179         case WINBINDD_PAM_CHAUTHTOK:
180         case WINBINDD_PAM_LOGOFF:
181         case WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP:
182         case WINBINDD_LIST_GROUPS:
183         case WINBINDD_LOOKUPRIDS:
184         case WINBINDD_SIDS_TO_XIDS:
185         case WINBINDD_ALLOCATE_UID:
186         case WINBINDD_ALLOCATE_GID:
187         case WINBINDD_SET_MAPPING:
188         case WINBINDD_SET_HWM:
189         case WINBINDD_DUMP_MAPS:
190         case WINBINDD_CHECK_MACHACC:
191         case WINBINDD_DOMAIN_INFO:
192         case WINBINDD_SHOW_SEQUENCE:
193         case WINBINDD_WINS_BYIP:
194         case WINBINDD_WINS_BYNAME:
195         case WINBINDD_GETGRLST:
196         case WINBINDD_INIT_CONNECTION:
197         case WINBINDD_DUAL_SIDS2XIDS:
198         case WINBINDD_DUAL_SET_MAPPING:
199         case WINBINDD_DUAL_SET_HWM:
200         case WINBINDD_DUAL_DUMP_MAPS:
201         case WINBINDD_DUAL_UID2NAME:
202         case WINBINDD_DUAL_NAME2UID:
203         case WINBINDD_DUAL_GID2NAME:
204         case WINBINDD_DUAL_NAME2GID:
205         case WINBINDD_DUAL_USERINFO:
206         case WINBINDD_DUAL_GETSIDALIASES:
207         case WINBINDD_CCACHE_NTLMAUTH:
208         case WINBINDD_NUM_CMDS:
209                 DEBUG(10, ("Unimplemented winbind samba3 request %d\n", 
210                            s3call->request.cmd));
211                 break;
212         }
213
214         s3call->response.result = WINBINDD_ERROR;
215         return NT_STATUS_OK;
216 }
217
218 static NTSTATUS wbsrv_samba3_push_reply(struct wbsrv_samba3_call *call, TALLOC_CTX *mem_ctx, DATA_BLOB *_blob)
219 {
220         DATA_BLOB blob;
221         uint8_t *extra_data;
222         size_t extra_data_len = 0;
223
224         extra_data = (uint8_t *)call->response.extra_data.data;
225         if (extra_data != NULL) {
226                 extra_data_len = call->response.length -
227                         sizeof(call->response);
228         }
229
230         blob = data_blob_talloc(mem_ctx, NULL, call->response.length);
231         NT_STATUS_HAVE_NO_MEMORY(blob.data);
232
233         /* don't push real pointer values into sockets */
234         if (extra_data) {
235                 call->response.extra_data.data = (void *)0xFFFFFFFF;
236         }
237         memcpy(blob.data, &call->response, sizeof(call->response));
238         /* set back the pointer */
239         call->response.extra_data.data = extra_data;
240
241         if (extra_data) {
242                 memcpy(blob.data + sizeof(call->response), extra_data, extra_data_len);
243         }
244
245         *_blob = blob;
246         return NT_STATUS_OK;
247 }
248
249 /*
250  * queue a wbsrv_call reply on a wbsrv_connection
251  * NOTE: that this implies talloc_free(call),
252  *       use talloc_reference(call) if you need it after
253  *       calling wbsrv_queue_reply
254  */
255 NTSTATUS wbsrv_samba3_send_reply(struct wbsrv_samba3_call *call)
256 {
257         struct wbsrv_connection *wbconn = call->wbconn;
258         DATA_BLOB rep;
259         NTSTATUS status;
260
261         status = wbsrv_samba3_push_reply(call, call, &rep);
262         NT_STATUS_NOT_OK_RETURN(status);
263
264         status = packet_send(call->wbconn->packet, rep);
265         
266         talloc_free(call);
267
268         if (!NT_STATUS_IS_OK(status)) {
269                 wbsrv_terminate_connection(wbconn,
270                                            "failed to packet_send winbindd reply");
271                 return status;
272         }
273         /* the call isn't needed any more */
274         return status;
275 }
276
277 NTSTATUS wbsrv_samba3_process(void *private, DATA_BLOB blob)
278 {
279         NTSTATUS status;
280         struct wbsrv_connection *wbconn = talloc_get_type(private, 
281                                                           struct wbsrv_connection);
282         struct wbsrv_samba3_call *call;
283         status = wbsrv_samba3_pull_request(blob, wbconn, &call);
284         
285         if (!NT_STATUS_IS_OK(status)) {
286                 return status;
287         }
288         
289         status = wbsrv_samba3_handle_call(call);
290
291         if (!NT_STATUS_IS_OK(status)) {
292                 talloc_free(call);
293                 return status;
294         }
295
296         if (call->flags & WBSRV_CALL_FLAGS_REPLY_ASYNC) {
297                 return NT_STATUS_OK;
298         }
299
300         status = wbsrv_samba3_send_reply(call);
301         return status;
302 }
303