Merge branch 'master' of ssh://git.samba.org/data/git/samba into wmi
[sfrench/samba-autobuild/.git] / source4 / lib / wmi / wbemdata.c
1 /*
2    WMI Implementation
3    Copyright (C) 2006 Andrzej Hajda <andrzej.hajda@wp.pl>
4    Copyright (C) 2008 Jelmer Vernooij <jelmer@samba.org>
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 2 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, write to the Free Software
18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21 #include "includes.h"
22 #include "librpc/gen_ndr/dcom.h"
23 #include "librpc/gen_ndr/com_dcom.h"
24 #include "librpc/ndr/libndr.h"
25 #include "librpc/ndr/libndr_proto.h"
26 #include "lib/com/com.h"
27 #include "lib/com/dcom/dcom.h"
28 #include "lib/util/dlinklist.h"
29 #include "librpc/ndr/libndr.h"
30 #include "librpc/gen_ndr/ndr_dcom.h"
31 #include "librpc/rpc/dcerpc.h"
32 #include "librpc/gen_ndr/ndr_misc.h"
33 #include "lib/talloc/talloc.h"
34 #include "libcli/composite/composite.h"
35 #include "lib/wmi/wmi.h"
36 #include "librpc/gen_ndr/ndr_wmi.h"
37
38 enum {
39         DATATYPE_CLASSOBJECT = 2,
40         DATATYPE_OBJECT = 3,
41         COFLAG_IS_CLASS = 4,
42 };
43
44 static enum ndr_err_code marshal(TALLOC_CTX *mem_ctx, struct IUnknown *pv, struct OBJREF *o)
45 {
46         struct ndr_push *ndr;
47         struct IWbemClassObject *wco;
48         struct MInterfacePointer *mp;
49
50         mp = (struct MInterfacePointer *)((char *)o - offsetof(struct MInterfacePointer, obj)); /* FIXME:high remove this Mumbo Jumbo */
51         wco = pv->object_data;
52         ndr = talloc_zero(mem_ctx, struct ndr_push);
53         ndr->flags = 0;
54         ndr->alloc_size = 1024;
55         ndr->data = talloc_array(mp, uint8_t, ndr->alloc_size);
56
57         if (wco) {
58                 uint32_t ofs;
59                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, 0x12345678));
60                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, 0));
61                 NDR_CHECK(ndr_push_IWbemClassObject(ndr, NDR_SCALARS | NDR_BUFFERS, wco));
62                 ofs = ndr->offset;
63                 ndr->offset = 4;
64                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, ofs - 8));
65                 ndr->offset = ofs;
66         } else {
67                 NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, 0));
68         }
69         o->u_objref.u_custom.pData = talloc_realloc(mp, ndr->data, uint8_t, ndr->offset);
70         o->u_objref.u_custom.size = ndr->offset;
71         mp->size = sizeof(struct OBJREF) - sizeof(union OBJREF_Types) + sizeof(struct u_custom) + o->u_objref.u_custom.size - 4;
72         if (DEBUGLVL(9)) {
73                 NDR_PRINT_DEBUG(IWbemClassObject, wco);
74         }
75         return NDR_ERR_SUCCESS;
76 }
77
78 static enum ndr_err_code unmarshal(TALLOC_CTX *mem_ctx, struct OBJREF *o, struct IUnknown **pv)
79 {
80         struct ndr_pull *ndr;
81         struct IWbemClassObject *wco;
82         enum ndr_err_code ndr_err;
83         uint32_t u;
84
85         mem_ctx = talloc_new(0);
86         ndr = talloc_zero(mem_ctx, struct ndr_pull);
87         ndr->current_mem_ctx = mem_ctx;
88         ndr->data = o->u_objref.u_custom.pData;
89         ndr->data_size = o->u_objref.u_custom.size;
90
91         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
92         if (!u) {
93                 talloc_free(*pv);
94                 *pv = NULL;
95                 return NDR_ERR_SUCCESS;
96         }
97         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
98         if (u + 8 > ndr->data_size) {
99                 DEBUG(1, ("unmarshall_IWbemClassObject: Incorrect data_size"));
100                 return NDR_ERR_BUFSIZE;
101         }
102         wco = talloc_zero(*pv, struct IWbemClassObject);
103         ndr->current_mem_ctx = wco;
104         ndr_err = ndr_pull_IWbemClassObject(ndr, NDR_SCALARS | NDR_BUFFERS, wco);
105
106         if (NDR_ERR_CODE_IS_SUCCESS(ndr_err) && (DEBUGLVL(9))) {
107                 NDR_PRINT_DEBUG(IWbemClassObject, wco);
108         }
109
110         if (NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
111                 (*pv)->object_data = wco;
112         } else {
113                 talloc_free(wco);
114         }
115         return NDR_ERR_SUCCESS;
116 }
117
118 WERROR dcom_IWbemClassObject_from_WbemClassObject(struct com_context *ctx, struct IWbemClassObject **_p, struct IWbemClassObject *wco)
119 {
120         struct IWbemClassObject *p;
121
122         p = talloc_zero(ctx, struct IWbemClassObject);
123         p->ctx = ctx;
124         p->obj.signature = 0x574f454d;
125         p->obj.flags = OBJREF_CUSTOM;
126         GUID_from_string("dc12a681-737f-11cf-884d-00aa004b2e24", &p->obj.iid);
127         GUID_from_string("4590f812-1d3a-11d0-891f-00aa004b2e24", &p->obj.u_objref.u_custom.clsid);
128         p->object_data = (void *)wco;
129         talloc_steal(p, p->object_data);
130         *_p = p;
131         return WERR_OK;
132 }
133
134 WERROR IWbemClassObject_GetMethod(struct IWbemClassObject *d, TALLOC_CTX *mem_ctx, const char *name, uint32_t flags, struct IWbemClassObject **in, struct IWbemClassObject **out)
135 {
136         uint32_t i;
137         struct IWbemClassObject *wco;
138
139         wco = (struct IWbemClassObject *)d->object_data;
140         for (i = 0; i < wco->obj_methods->count; ++i)
141                 if (!strcmp(wco->obj_methods->method[i].name, name)) {
142                         if (in) dcom_IWbemClassObject_from_WbemClassObject(d->ctx, in, wco->obj_methods->method[i].in);
143                         if (out) dcom_IWbemClassObject_from_WbemClassObject(d->ctx, out, wco->obj_methods->method[i].out);
144                         return WERR_OK;
145                 }
146         return WERR_NOT_FOUND;
147 }
148
149 void IWbemClassObject_CreateInstance(struct IWbemClassObject *wco)
150 {
151         uint32_t i;
152
153         wco->instance = talloc_zero(wco, struct WbemInstance);
154         wco->instance->default_flags = talloc_array(wco->instance, uint8_t, wco->obj_class->__PROPERTY_COUNT);
155         wco->instance->data = talloc_array(wco->instance, union CIMVAR, wco->obj_class->__PROPERTY_COUNT);
156         memset(wco->instance->data, 0, sizeof(union CIMVAR) * wco->obj_class->__PROPERTY_COUNT);
157         for (i = 0; i < wco->obj_class->__PROPERTY_COUNT; ++i) {
158                 wco->instance->default_flags[i] = 1; /* FIXME:high resolve this magic */
159         }
160         wco->instance->__CLASS = wco->obj_class->__CLASS;
161         wco->instance->u2_4 = 4;
162         wco->instance->u3_1 = 1;
163 }
164
165 WERROR IWbemClassObject_Clone(struct IWbemClassObject *d, TALLOC_CTX *mem_ctx, struct IWbemClassObject **copy)
166 {
167         return WERR_NOT_SUPPORTED;
168 }
169
170 WERROR IWbemClassObject_SpawnInstance(struct IWbemClassObject *d, TALLOC_CTX *mem_ctx, uint32_t flags, struct IWbemClassObject **instance)
171 {
172         struct IWbemClassObject *wco, *nwco;
173
174         wco = (struct IWbemClassObject *)d->object_data;
175         nwco = talloc_zero(mem_ctx, struct IWbemClassObject);
176         nwco->flags = WCF_INSTANCE;
177         nwco->obj_class = wco->obj_class;
178         IWbemClassObject_CreateInstance(nwco);
179         dcom_IWbemClassObject_from_WbemClassObject(d->ctx, instance, nwco);
180         return WERR_OK;
181 }
182
183 WERROR IWbemClassObject_Get(struct IWbemClassObject *d, TALLOC_CTX *mem_ctx, const char *name, uint32_t flags, union CIMVAR *val, enum CIMTYPE_ENUMERATION *cimtype, uint32_t *flavor)
184 {
185         uint32_t i;
186         for (i = 0; i < d->obj_class->__PROPERTY_COUNT; ++i) {
187                 if (!strcmp(d->obj_class->properties[i].property.name, name)) {
188                         duplicate_CIMVAR(mem_ctx, &d->instance->data[i], val, d->obj_class->properties[i].property.desc->cimtype);
189                         if (cimtype != NULL) 
190                                 *cimtype = d->obj_class->properties[i].property.desc->cimtype;
191                         if (flavor != NULL) 
192                                 *flavor = 0; /* FIXME:avg implement flavor */
193                         return WERR_OK;
194                 }
195         }
196         return WERR_NOT_FOUND;
197 }
198
199 WERROR IWbemClassObject_Put(struct IWbemClassObject *d, TALLOC_CTX *mem_ctx, const char *name, uint32_t flags, union CIMVAR *val, enum CIMTYPE_ENUMERATION cimtype)
200 {
201         struct IWbemClassObject *wco;
202         uint32_t i;
203
204         wco = (struct IWbemClassObject *)d->object_data;
205         for (i = 0; i < wco->obj_class->__PROPERTY_COUNT; ++i) {
206                 if (!strcmp(wco->obj_class->properties[i].property.name, name)) {
207                         if (cimtype && cimtype != wco->obj_class->properties[i].property.desc->cimtype) return WERR_INVALID_PARAM;
208                         wco->instance->default_flags[i] = 0;
209                         duplicate_CIMVAR(wco->instance, val, &wco->instance->data[i], wco->obj_class->properties[i].property.desc->cimtype);
210                         return WERR_OK;
211                 }
212         }
213         return WERR_NOT_FOUND;
214 }
215
216 #define WERR_CHECK(msg) if (!W_ERROR_IS_OK(result)) { \
217                               DEBUG(1, ("ERROR: %s - %s\n", msg, wmi_errstr(result))); \
218         return result; \
219                           } else { \
220                               DEBUG(1, ("OK   : %s\n", msg)); \
221                           }
222
223 struct pair_guid_ptr {
224         struct GUID guid;
225         void *ptr;
226         struct pair_guid_ptr *next, *prev;
227 };
228
229 static void *get_ptr_by_guid(struct pair_guid_ptr *list, struct GUID *uuid)
230 {
231         for (; list; list = list->next) {
232                 if (GUID_equal(&list->guid, uuid))
233                                 return list->ptr;
234         }
235         return NULL;
236 }
237
238 static void add_pair_guid_ptr(TALLOC_CTX *mem_ctx, struct pair_guid_ptr **list, struct GUID *uuid, void *ptr)
239 {
240         struct pair_guid_ptr *e;
241
242         e = talloc(mem_ctx, struct pair_guid_ptr);
243         e->guid = *uuid;
244         e->ptr = ptr;
245         talloc_steal(e, ptr);
246         DLIST_ADD(*list, e);
247 }
248
249 struct IEnumWbemClassObject_data {
250         struct GUID guid;
251         struct IWbemFetchSmartEnum *pFSE;
252         struct IWbemWCOSmartEnum *pSE;
253         struct pair_guid_ptr *cache;
254 };
255 #define NDR_CHECK_EXPR(expr) do { if (!(expr)) {\
256                                         DEBUG(0, ("%s(%d): WBEMDATA_ERR(0x%08X): Error parsing(%s)\n", __FILE__, __LINE__, ndr->offset, #expr)); \
257                                         return NDR_ERR_VALIDATE; \
258                                         } \
259                                     } while(0)
260
261 #define NDR_CHECK_CONST(val, exp) NDR_CHECK_EXPR((val) == (exp))
262
263
264 static enum ndr_err_code WBEMDATA_Parse(TALLOC_CTX *mem_ctx, uint8_t *data, uint32_t size, struct IEnumWbemClassObject *d, uint32_t uCount, struct IWbemClassObject **apObjects)
265 {
266         struct ndr_pull *ndr;
267         uint32_t u, i, ofs_next;
268         uint8_t u8, datatype;
269         struct GUID guid;
270         struct IEnumWbemClassObject_data *ecod;
271
272         if (!uCount) 
273                 return NDR_ERR_BAD_SWITCH;
274
275         ecod = d->object_data;
276
277         ndr = talloc_zero(mem_ctx, struct ndr_pull);
278         ndr->current_mem_ctx = d->ctx;
279         ndr->data = data;
280         ndr->data_size = size;
281         ndr_set_flags(&ndr->flags, LIBNDR_FLAG_NOALIGN);
282
283         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
284         NDR_CHECK_CONST(u, 0x0);
285         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
286         NDR_CHECK_CONST(u, *(const uint32_t *)"WBEM");
287         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
288         NDR_CHECK_CONST(u, *(const uint32_t *)"DATA");
289         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
290         NDR_CHECK_CONST(u, 0x1A); /* Length of header */
291         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
292         NDR_PULL_NEED_BYTES(ndr, u + 6);
293         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
294         NDR_CHECK_CONST(u, 0x0);
295         NDR_CHECK(ndr_pull_uint8(ndr, NDR_SCALARS, &u8));
296         NDR_CHECK_CONST(u8, 0x01); /* Major Version */
297         NDR_CHECK(ndr_pull_uint8(ndr, NDR_SCALARS, &u8));
298         NDR_CHECK_EXPR(u8 <= 1); /* Minor Version 0 - Win2000, 1 - XP/2003 */
299         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
300         NDR_CHECK_CONST(u, 0x8); /* Length of header */
301         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
302         NDR_PULL_NEED_BYTES(ndr, u);
303         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
304         NDR_CHECK_CONST(u, 0xC); /* Length of header */
305         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
306         NDR_PULL_NEED_BYTES(ndr, u + 4);
307         NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
308         NDR_CHECK_CONST(u, uCount);
309         for (i = 0; i < uCount; ++i) {
310                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
311                 NDR_CHECK_CONST(u, 0x9); /* Length of header */
312                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
313                 NDR_PULL_NEED_BYTES(ndr, u + 1);
314                 NDR_CHECK(ndr_pull_uint8(ndr, NDR_SCALARS, &datatype));
315                 ofs_next = ndr->offset + u;
316                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
317                 NDR_CHECK_CONST(u, 0x18); /* Length of header */
318                 NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &u));
319                 NDR_PULL_NEED_BYTES(ndr, u + 16);
320                 NDR_CHECK(ndr_pull_GUID(ndr, NDR_SCALARS, &guid));
321                 switch (datatype) {
322                 case DATATYPE_CLASSOBJECT:
323                         apObjects[i] = talloc_zero(d->ctx, struct IWbemClassObject);
324                         ndr->current_mem_ctx = apObjects[i];
325                         NDR_CHECK(ndr_pull_WbemClassObject(ndr, NDR_SCALARS|NDR_BUFFERS, apObjects[i]));
326                         ndr->current_mem_ctx = d->ctx;
327                         add_pair_guid_ptr(ecod, &ecod->cache, &guid, apObjects[i]->obj_class);
328                         break;
329                 case DATATYPE_OBJECT:
330                         apObjects[i] = talloc_zero(d->ctx, struct IWbemClassObject);
331                         apObjects[i]->obj_class = get_ptr_by_guid(ecod->cache, &guid);
332                         (void)talloc_reference(apObjects[i], apObjects[i]->obj_class);
333                         ndr->current_mem_ctx = apObjects[i];
334                         NDR_CHECK(ndr_pull_WbemClassObject_Object(ndr, NDR_SCALARS|NDR_BUFFERS, apObjects[i]));
335                         ndr->current_mem_ctx = d->ctx;
336                         break;
337                 default:
338                         DEBUG(0, ("WBEMDATA_Parse: Data type %d not supported\n", datatype));
339                         return NDR_ERR_BAD_SWITCH;
340                 }
341                 ndr->offset = ofs_next;
342                 if (DEBUGLVL(9)) {
343                         NDR_PRINT_DEBUG(IWbemClassObject, apObjects[i]);
344                 }
345         }
346         return NDR_ERR_SUCCESS;
347 }
348
349 WERROR IEnumWbemClassObject_SmartNext(struct IEnumWbemClassObject *d, TALLOC_CTX *mem_ctx, int32_t lTimeout, uint32_t uCount, struct IWbemClassObject **apObjects, uint32_t *puReturned)
350 {
351         WERROR result;
352         NTSTATUS status;
353         struct IEnumWbemClassObject_data *ecod;
354         TALLOC_CTX *loc_ctx;
355         uint32_t size;
356         uint8_t *data;
357
358         loc_ctx = talloc_new(0);
359         ecod = d->object_data;
360         if (!ecod) {
361                 struct GUID iid;
362                 WERROR coresult;
363
364                 d->object_data = ecod = talloc_zero(d, struct IEnumWbemClassObject_data);
365                 GUID_from_string(COM_IWBEMFETCHSMARTENUM_UUID, &iid);
366                 result = dcom_query_interface((struct IUnknown *)d, 5, 1, &iid, (struct IUnknown **)&ecod->pFSE, &coresult);
367                 WERR_CHECK("dcom_query_interface.");
368                 result = coresult;
369                 WERR_CHECK("Retrieve enumerator of result(IWbemFetchSmartEnum).");
370
371                 result = IWbemFetchSmartEnum_Fetch(ecod->pFSE, mem_ctx, &ecod->pSE);
372                 WERR_CHECK("Retrieve enumerator of result(IWbemWCOSmartEnum).");
373
374                 ecod->guid = GUID_random();
375                 d->vtable->Release_send = dcom_proxy_IEnumWbemClassObject_Release_send;
376         }
377
378         result = IWbemWCOSmartEnum_Next(ecod->pSE, loc_ctx, &ecod->guid, lTimeout, uCount, puReturned, &size, &data);
379         if (!W_ERROR_EQUAL(result, WERR_BADFUNC)) {
380                 WERR_CHECK("IWbemWCOSmartEnum_Next.");
381         }
382
383         if (data) {
384                 NDR_CHECK(WBEMDATA_Parse(mem_ctx, data, size, d, *puReturned, apObjects));
385         }
386         if (!W_ERROR_IS_OK(result)) {
387                 status = werror_to_ntstatus(result);
388                 DEBUG(9, ("dcom_proxy_IEnumWbemClassObject_Next: %s - %s\n", nt_errstr(status), get_friendly_nt_error_msg(status)));
389         }
390         talloc_free(loc_ctx);
391         return result;
392 }
393
394 struct composite_context *dcom_proxy_IEnumWbemClassObject_Release_send(struct IUnknown *d, TALLOC_CTX *mem_ctx)
395 {
396         struct composite_context *c, *cr;
397         struct REMINTERFACEREF iref[3];
398         struct dcom_object_exporter *ox;
399         struct IEnumWbemClassObject_data *ecod;
400         int n;
401
402         c = composite_create(d->ctx, d->ctx->event_ctx);
403         if (c == NULL) return NULL;
404         c->private_data = d;
405
406         ox = object_exporter_by_ip(d->ctx, d);
407         iref[0].ipid = IUnknown_ipid(d);
408         iref[0].cPublicRefs = 5;
409         iref[0].cPrivateRefs = 0;
410         n = 1;
411
412         ecod = d->object_data;
413         if (ecod) {
414                 if (ecod->pFSE) {
415                         talloc_steal(d, ecod->pFSE);
416                         iref[n].ipid = IUnknown_ipid(ecod->pFSE);
417                         iref[n].cPublicRefs = 5;
418                         iref[n].cPrivateRefs = 0;
419                         ++n;
420                 }
421                 if (ecod->pSE) {
422                         talloc_steal(d, ecod->pSE);
423                         iref[n].ipid = IUnknown_ipid(ecod->pSE);
424                         iref[n].cPublicRefs = 5;
425                         iref[n].cPrivateRefs = 0;
426                         ++n;
427                 }
428         }
429         cr = IRemUnknown_RemRelease_send(ox->rem_unknown, mem_ctx, n, iref);
430
431         composite_continue(c, cr, dcom_release_continue, c);
432         return c;
433 }
434
435 NTSTATUS dcom_proxy_IWbemClassObject_init(void)
436 {
437         struct GUID clsid;
438         GUID_from_string("4590f812-1d3a-11d0-891f-00aa004b2e24", &clsid);
439         dcom_register_marshal(&clsid, marshal, unmarshal);
440
441 #if 0
442         struct IEnumWbemClassObject_vtable *proxy_vtable;
443         proxy_vtable = (struct IEnumWbemClassObject_vtable *)dcom_proxy_vtable_by_iid((struct GUID *)&dcerpc_table_IEnumWbemClassObject.syntax_id.uuid);
444         if (proxy_vtable)
445                 proxy_vtable->Release_send = dcom_proxy_IEnumWbemClassObject_Release_send;
446         else
447                 DEBUG(0, ("WARNING: IEnumWbemClassObject should be initialized before IWbemClassObject."));
448 #endif
449
450         return NT_STATUS_OK;
451 }