source: vendor/current/source4/lib/wmi/wbemdata.c

Last change on this file was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 14.9 KB
Line 
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
38enum {
39 DATATYPE_CLASSOBJECT = 2,
40 DATATYPE_OBJECT = 3,
41 COFLAG_IS_CLASS = 4,
42};
43
44static 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
78static 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
118WERROR 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
134WERROR 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
149void 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
165WERROR IWbemClassObject_Clone(struct IWbemClassObject *d, TALLOC_CTX *mem_ctx, struct IWbemClassObject **copy)
166{
167 return WERR_NOT_SUPPORTED;
168}
169
170WERROR 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
183WERROR 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
199WERROR 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
223struct pair_guid_ptr {
224 struct GUID guid;
225 void *ptr;
226 struct pair_guid_ptr *next, *prev;
227};
228
229static 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
238static 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
249struct 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
264static 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
349WERROR 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
394struct 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
435NTSTATUS 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}
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