| 1 | /* |
| 2 | |
| 3 | Copyright 1996, 1998 The Open Group |
| 4 | |
| 5 | Permission to use, copy, modify, distribute, and sell this software and its |
| 6 | documentation for any purpose is hereby granted without fee, provided that |
| 7 | the above copyright notice appear in all copies and that both that |
| 8 | copyright notice and this permission notice appear in supporting |
| 9 | documentation. |
| 10 | |
| 11 | The above copyright notice and this permission notice shall be included in |
| 12 | all copies or substantial portions of the Software. |
| 13 | |
| 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| 18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 20 | |
| 21 | Except as contained in this notice, the name of The Open Group shall not be |
| 22 | used in advertising or otherwise to promote the sale, use or other dealings |
| 23 | in this Software without prior written authorization from The Open Group. |
| 24 | |
| 25 | */ |
| 26 | |
| 27 | #ifdef HAVE_DIX_CONFIG_H |
| 28 | #include <dix-config.h> |
| 29 | #endif |
| 30 | |
| 31 | #include "scrnintstr.h" |
| 32 | #include "inputstr.h" |
| 33 | #include "windowstr.h" |
| 34 | #include "propertyst.h" |
| 35 | #include "colormapst.h" |
| 36 | #include "privates.h" |
| 37 | #include "registry.h" |
| 38 | #include "xacestr.h" |
| 39 | #include "securitysrv.h" |
| 40 | #include <X11/extensions/securproto.h> |
| 41 | #include "extinit.h" |
| 42 | #include "protocol-versions.h" |
| 43 | |
| 44 | /* Extension stuff */ |
| 45 | static int SecurityErrorBase; /* first Security error number */ |
| 46 | static int SecurityEventBase; /* first Security event number */ |
| 47 | |
| 48 | RESTYPE SecurityAuthorizationResType; /* resource type for authorizations */ |
| 49 | static RESTYPE RTEventClient; |
| 50 | |
| 51 | static CallbackListPtr SecurityValidateGroupCallback = NULL; |
| 52 | |
| 53 | /* Private state record */ |
| 54 | static DevPrivateKeyRec stateKeyRec; |
| 55 | |
| 56 | #define stateKey (&stateKeyRec) |
| 57 | |
| 58 | /* This is what we store as client security state */ |
| 59 | typedef struct { |
| 60 | unsigned int haveState :1; |
| 61 | unsigned int live :1; |
| 62 | unsigned int trustLevel :2; |
| 63 | XID authId; |
| 64 | } SecurityStateRec; |
| 65 | |
| 66 | /* Extensions that untrusted clients shouldn't have access to */ |
| 67 | static const char *SecurityTrustedExtensions[] = { |
| 68 | "XC-MISC", |
| 69 | "BIG-REQUESTS", |
| 70 | "XpExtension", |
| 71 | NULL |
| 72 | }; |
| 73 | |
| 74 | /* |
| 75 | * Access modes that untrusted clients are allowed on trusted objects. |
| 76 | */ |
| 77 | static const Mask SecurityResourceMask = |
| 78 | DixGetAttrAccess | DixReceiveAccess | DixListPropAccess | |
| 79 | DixGetPropAccess | DixListAccess; |
| 80 | static const Mask SecurityWindowExtraMask = DixRemoveAccess; |
| 81 | static const Mask SecurityRootWindowExtraMask = |
| 82 | DixReceiveAccess | DixSendAccess | DixAddAccess | DixRemoveAccess; |
| 83 | static const Mask SecurityDeviceMask = |
| 84 | DixGetAttrAccess | DixReceiveAccess | DixGetFocusAccess | |
| 85 | DixGrabAccess | DixSetAttrAccess | DixUseAccess; |
| 86 | static const Mask SecurityServerMask = DixGetAttrAccess | DixGrabAccess; |
| 87 | static const Mask SecurityClientMask = DixGetAttrAccess; |
| 88 | |
| 89 | /* SecurityAudit |
| 90 | * |
| 91 | * Arguments: |
| 92 | * format is the formatting string to be used to interpret the |
| 93 | * remaining arguments. |
| 94 | * |
| 95 | * Returns: nothing. |
| 96 | * |
| 97 | * Side Effects: |
| 98 | * Writes the message to the log file if security logging is on. |
| 99 | */ |
| 100 | |
| 101 | static void |
| 102 | _X_ATTRIBUTE_PRINTF(1, 2) |
| 103 | SecurityAudit(const char *format, ...) |
| 104 | { |
| 105 | va_list args; |
| 106 | |
| 107 | if (auditTrailLevel < SECURITY_AUDIT_LEVEL) |
| 108 | return; |
| 109 | va_start(args, format); |
| 110 | VAuditF(format, args); |
| 111 | va_end(args); |
| 112 | } /* SecurityAudit */ |
| 113 | |
| 114 | /* |
| 115 | * Performs a Security permission check. |
| 116 | */ |
| 117 | static int |
| 118 | SecurityDoCheck(SecurityStateRec * subj, SecurityStateRec * obj, |
| 119 | Mask requested, Mask allowed) |
| 120 | { |
| 121 | if (!subj->haveState || !obj->haveState) |
| 122 | return Success; |
| 123 | if (subj->trustLevel == XSecurityClientTrusted) |
| 124 | return Success; |
| 125 | if (obj->trustLevel != XSecurityClientTrusted) |
| 126 | return Success; |
| 127 | if ((requested | allowed) == allowed) |
| 128 | return Success; |
| 129 | |
| 130 | return BadAccess; |
| 131 | } |
| 132 | |
| 133 | /* |
| 134 | * Labels initial server objects. |
| 135 | */ |
| 136 | static void |
| 137 | SecurityLabelInitial(void) |
| 138 | { |
| 139 | SecurityStateRec *state; |
| 140 | |
| 141 | /* Do the serverClient */ |
| 142 | state = dixLookupPrivate(&serverClient->devPrivates, stateKey); |
| 143 | state->trustLevel = XSecurityClientTrusted; |
| 144 | state->haveState = TRUE; |
| 145 | state->live = FALSE; |
| 146 | } |
| 147 | |
| 148 | /* |
| 149 | * Looks up a request name |
| 150 | */ |
| 151 | static _X_INLINE const char * |
| 152 | SecurityLookupRequestName(ClientPtr client) |
| 153 | { |
| 154 | return LookupRequestName(client->majorOp, client->minorOp); |
| 155 | } |
| 156 | |
| 157 | /* SecurityDeleteAuthorization |
| 158 | * |
| 159 | * Arguments: |
| 160 | * value is the authorization to delete. |
| 161 | * id is its resource ID. |
| 162 | * |
| 163 | * Returns: Success. |
| 164 | * |
| 165 | * Side Effects: |
| 166 | * Frees everything associated with the authorization. |
| 167 | */ |
| 168 | |
| 169 | static int |
| 170 | SecurityDeleteAuthorization(pointer value, XID id) |
| 171 | { |
| 172 | SecurityAuthorizationPtr pAuth = (SecurityAuthorizationPtr) value; |
| 173 | unsigned short name_len, data_len; |
| 174 | const char *name; |
| 175 | char *data; |
| 176 | int status; |
| 177 | int i; |
| 178 | OtherClientsPtr pEventClient; |
| 179 | |
| 180 | /* Remove the auth using the os layer auth manager */ |
| 181 | |
| 182 | status = AuthorizationFromID(pAuth->id, &name_len, &name, &data_len, &data); |
| 183 | assert(status); |
| 184 | status = RemoveAuthorization(name_len, name, data_len, data); |
| 185 | assert(status); |
| 186 | (void) status; |
| 187 | |
| 188 | /* free the auth timer if there is one */ |
| 189 | |
| 190 | if (pAuth->timer) |
| 191 | TimerFree(pAuth->timer); |
| 192 | |
| 193 | /* send revoke events */ |
| 194 | |
| 195 | while ((pEventClient = pAuth->eventClients)) { |
| 196 | /* send revocation event event */ |
| 197 | xSecurityAuthorizationRevokedEvent are = { |
| 198 | .type = SecurityEventBase + XSecurityAuthorizationRevoked, |
| 199 | .authId = pAuth->id |
| 200 | }; |
| 201 | WriteEventsToClient(rClient(pEventClient), 1, (xEvent *) &are); |
| 202 | FreeResource(pEventClient->resource, RT_NONE); |
| 203 | } |
| 204 | |
| 205 | /* kill all clients using this auth */ |
| 206 | |
| 207 | for (i = 1; i < currentMaxClients; i++) |
| 208 | if (clients[i]) { |
| 209 | SecurityStateRec *state; |
| 210 | |
| 211 | state = dixLookupPrivate(&clients[i]->devPrivates, stateKey); |
| 212 | if (state->haveState && state->authId == pAuth->id) |
| 213 | CloseDownClient(clients[i]); |
| 214 | } |
| 215 | |
| 216 | SecurityAudit("revoked authorization ID %d\n", pAuth->id); |
| 217 | free(pAuth); |
| 218 | return Success; |
| 219 | |
| 220 | } /* SecurityDeleteAuthorization */ |
| 221 | |
| 222 | /* resource delete function for RTEventClient */ |
| 223 | static int |
| 224 | SecurityDeleteAuthorizationEventClient(pointer value, XID id) |
| 225 | { |
| 226 | OtherClientsPtr pEventClient, prev = NULL; |
| 227 | SecurityAuthorizationPtr pAuth = (SecurityAuthorizationPtr) value; |
| 228 | |
| 229 | for (pEventClient = pAuth->eventClients; |
| 230 | pEventClient; pEventClient = pEventClient->next) { |
| 231 | if (pEventClient->resource == id) { |
| 232 | if (prev) |
| 233 | prev->next = pEventClient->next; |
| 234 | else |
| 235 | pAuth->eventClients = pEventClient->next; |
| 236 | free(pEventClient); |
| 237 | return Success; |
| 238 | } |
| 239 | prev = pEventClient; |
| 240 | } |
| 241 | /*NOTREACHED*/ return -1; /* make compiler happy */ |
| 242 | } /* SecurityDeleteAuthorizationEventClient */ |
| 243 | |
| 244 | /* SecurityComputeAuthorizationTimeout |
| 245 | * |
| 246 | * Arguments: |
| 247 | * pAuth is the authorization for which we are computing the timeout |
| 248 | * seconds is the number of seconds we want to wait |
| 249 | * |
| 250 | * Returns: |
| 251 | * the number of milliseconds that the auth timer should be set to |
| 252 | * |
| 253 | * Side Effects: |
| 254 | * Sets pAuth->secondsRemaining to any "overflow" amount of time |
| 255 | * that didn't fit in 32 bits worth of milliseconds |
| 256 | */ |
| 257 | |
| 258 | static CARD32 |
| 259 | SecurityComputeAuthorizationTimeout(SecurityAuthorizationPtr pAuth, |
| 260 | unsigned int seconds) |
| 261 | { |
| 262 | /* maxSecs is the number of full seconds that can be expressed in |
| 263 | * 32 bits worth of milliseconds |
| 264 | */ |
| 265 | CARD32 maxSecs = (CARD32) (~0) / (CARD32) MILLI_PER_SECOND; |
| 266 | |
| 267 | if (seconds > maxSecs) { /* only come here if we want to wait more than 49 days */ |
| 268 | pAuth->secondsRemaining = seconds - maxSecs; |
| 269 | return maxSecs * MILLI_PER_SECOND; |
| 270 | } |
| 271 | else { /* by far the common case */ |
| 272 | pAuth->secondsRemaining = 0; |
| 273 | return seconds * MILLI_PER_SECOND; |
| 274 | } |
| 275 | } /* SecurityStartAuthorizationTimer */ |
| 276 | |
| 277 | /* SecurityAuthorizationExpired |
| 278 | * |
| 279 | * This function is passed as an argument to TimerSet and gets called from |
| 280 | * the timer manager in the os layer when its time is up. |
| 281 | * |
| 282 | * Arguments: |
| 283 | * timer is the timer for this authorization. |
| 284 | * time is the current time. |
| 285 | * pval is the authorization whose time is up. |
| 286 | * |
| 287 | * Returns: |
| 288 | * A new time delay in milliseconds if the timer should wait some |
| 289 | * more, else zero. |
| 290 | * |
| 291 | * Side Effects: |
| 292 | * Frees the authorization resource if the timeout period is really |
| 293 | * over, otherwise recomputes pAuth->secondsRemaining. |
| 294 | */ |
| 295 | |
| 296 | static CARD32 |
| 297 | SecurityAuthorizationExpired(OsTimerPtr timer, CARD32 time, pointer pval) |
| 298 | { |
| 299 | SecurityAuthorizationPtr pAuth = (SecurityAuthorizationPtr) pval; |
| 300 | |
| 301 | assert(pAuth->timer == timer); |
| 302 | |
| 303 | if (pAuth->secondsRemaining) { |
| 304 | return SecurityComputeAuthorizationTimeout(pAuth, |
| 305 | pAuth->secondsRemaining); |
| 306 | } |
| 307 | else { |
| 308 | FreeResource(pAuth->id, RT_NONE); |
| 309 | return 0; |
| 310 | } |
| 311 | } /* SecurityAuthorizationExpired */ |
| 312 | |
| 313 | /* SecurityStartAuthorizationTimer |
| 314 | * |
| 315 | * Arguments: |
| 316 | * pAuth is the authorization whose timer should be started. |
| 317 | * |
| 318 | * Returns: nothing. |
| 319 | * |
| 320 | * Side Effects: |
| 321 | * A timer is started, set to expire after the timeout period for |
| 322 | * this authorization. When it expires, the function |
| 323 | * SecurityAuthorizationExpired will be called. |
| 324 | */ |
| 325 | |
| 326 | static void |
| 327 | SecurityStartAuthorizationTimer(SecurityAuthorizationPtr pAuth) |
| 328 | { |
| 329 | pAuth->timer = TimerSet(pAuth->timer, 0, |
| 330 | SecurityComputeAuthorizationTimeout(pAuth, |
| 331 | pAuth->timeout), |
| 332 | SecurityAuthorizationExpired, pAuth); |
| 333 | } /* SecurityStartAuthorizationTimer */ |
| 334 | |
| 335 | /* Proc functions all take a client argument, execute the request in |
| 336 | * client->requestBuffer, and return a protocol error status. |
| 337 | */ |
| 338 | |
| 339 | static int |
| 340 | ProcSecurityQueryVersion(ClientPtr client) |
| 341 | { |
| 342 | /* REQUEST(xSecurityQueryVersionReq); */ |
| 343 | xSecurityQueryVersionReply rep = { |
| 344 | .type = X_Reply, |
| 345 | .sequenceNumber = client->sequence, |
| 346 | .length = 0, |
| 347 | .majorVersion = SERVER_SECURITY_MAJOR_VERSION, |
| 348 | .minorVersion = SERVER_SECURITY_MINOR_VERSION |
| 349 | }; |
| 350 | |
| 351 | REQUEST_SIZE_MATCH(xSecurityQueryVersionReq); |
| 352 | |
| 353 | if (client->swapped) { |
| 354 | swaps(&rep.sequenceNumber); |
| 355 | swaps(&rep.majorVersion); |
| 356 | swaps(&rep.minorVersion); |
| 357 | } |
| 358 | WriteToClient(client, SIZEOF(xSecurityQueryVersionReply), &rep); |
| 359 | return Success; |
| 360 | } /* ProcSecurityQueryVersion */ |
| 361 | |
| 362 | static int |
| 363 | SecurityEventSelectForAuthorization(SecurityAuthorizationPtr pAuth, |
| 364 | ClientPtr client, Mask mask) |
| 365 | { |
| 366 | OtherClients *pEventClient; |
| 367 | |
| 368 | for (pEventClient = pAuth->eventClients; |
| 369 | pEventClient; pEventClient = pEventClient->next) { |
| 370 | if (SameClient(pEventClient, client)) { |
| 371 | if (mask == 0) |
| 372 | FreeResource(pEventClient->resource, RT_NONE); |
| 373 | else |
| 374 | pEventClient->mask = mask; |
| 375 | return Success; |
| 376 | } |
| 377 | } |
| 378 | |
| 379 | pEventClient = malloc(sizeof(OtherClients)); |
| 380 | if (!pEventClient) |
| 381 | return BadAlloc; |
| 382 | pEventClient->mask = mask; |
| 383 | pEventClient->resource = FakeClientID(client->index); |
| 384 | pEventClient->next = pAuth->eventClients; |
| 385 | if (!AddResource(pEventClient->resource, RTEventClient, (pointer) pAuth)) { |
| 386 | free(pEventClient); |
| 387 | return BadAlloc; |
| 388 | } |
| 389 | pAuth->eventClients = pEventClient; |
| 390 | |
| 391 | return Success; |
| 392 | } /* SecurityEventSelectForAuthorization */ |
| 393 | |
| 394 | static int |
| 395 | ProcSecurityGenerateAuthorization(ClientPtr client) |
| 396 | { |
| 397 | REQUEST(xSecurityGenerateAuthorizationReq); |
| 398 | int len; /* request length in CARD32s */ |
| 399 | Bool removeAuth = FALSE; /* if bailout, call RemoveAuthorization? */ |
| 400 | SecurityAuthorizationPtr pAuth = NULL; /* auth we are creating */ |
| 401 | int err; /* error to return from this function */ |
| 402 | XID authId; /* authorization ID assigned by os layer */ |
| 403 | xSecurityGenerateAuthorizationReply rep; /* reply struct */ |
| 404 | unsigned int trustLevel; /* trust level of new auth */ |
| 405 | XID group; /* group of new auth */ |
| 406 | CARD32 timeout; /* timeout of new auth */ |
| 407 | CARD32 *values; /* list of supplied attributes */ |
| 408 | char *protoname; /* auth proto name sent in request */ |
| 409 | char *protodata; /* auth proto data sent in request */ |
| 410 | unsigned int authdata_len; /* # bytes of generated auth data */ |
| 411 | char *pAuthdata; /* generated auth data */ |
| 412 | Mask eventMask; /* what events on this auth does client want */ |
| 413 | |
| 414 | /* check request length */ |
| 415 | |
| 416 | REQUEST_AT_LEAST_SIZE(xSecurityGenerateAuthorizationReq); |
| 417 | len = bytes_to_int32(SIZEOF(xSecurityGenerateAuthorizationReq)); |
| 418 | len += bytes_to_int32(stuff->nbytesAuthProto); |
| 419 | len += bytes_to_int32(stuff->nbytesAuthData); |
| 420 | values = ((CARD32 *) stuff) + len; |
| 421 | len += Ones(stuff->valueMask); |
| 422 | if (client->req_len != len) |
| 423 | return BadLength; |
| 424 | |
| 425 | /* check valuemask */ |
| 426 | if (stuff->valueMask & ~XSecurityAllAuthorizationAttributes) { |
| 427 | client->errorValue = stuff->valueMask; |
| 428 | return BadValue; |
| 429 | } |
| 430 | |
| 431 | /* check timeout */ |
| 432 | timeout = 60; |
| 433 | if (stuff->valueMask & XSecurityTimeout) { |
| 434 | timeout = *values++; |
| 435 | } |
| 436 | |
| 437 | /* check trustLevel */ |
| 438 | trustLevel = XSecurityClientUntrusted; |
| 439 | if (stuff->valueMask & XSecurityTrustLevel) { |
| 440 | trustLevel = *values++; |
| 441 | if (trustLevel != XSecurityClientTrusted && |
| 442 | trustLevel != XSecurityClientUntrusted) { |
| 443 | client->errorValue = trustLevel; |
| 444 | return BadValue; |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | /* check group */ |
| 449 | group = None; |
| 450 | if (stuff->valueMask & XSecurityGroup) { |
| 451 | group = *values++; |
| 452 | if (SecurityValidateGroupCallback) { |
| 453 | SecurityValidateGroupInfoRec vgi; |
| 454 | |
| 455 | vgi.group = group; |
| 456 | vgi.valid = FALSE; |
| 457 | CallCallbacks(&SecurityValidateGroupCallback, (pointer) &vgi); |
| 458 | |
| 459 | /* if nobody said they recognized it, it's an error */ |
| 460 | |
| 461 | if (!vgi.valid) { |
| 462 | client->errorValue = group; |
| 463 | return BadValue; |
| 464 | } |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | /* check event mask */ |
| 469 | eventMask = 0; |
| 470 | if (stuff->valueMask & XSecurityEventMask) { |
| 471 | eventMask = *values++; |
| 472 | if (eventMask & ~XSecurityAllEventMasks) { |
| 473 | client->errorValue = eventMask; |
| 474 | return BadValue; |
| 475 | } |
| 476 | } |
| 477 | |
| 478 | protoname = (char *) &stuff[1]; |
| 479 | protodata = protoname + bytes_to_int32(stuff->nbytesAuthProto); |
| 480 | |
| 481 | /* call os layer to generate the authorization */ |
| 482 | |
| 483 | authId = GenerateAuthorization(stuff->nbytesAuthProto, protoname, |
| 484 | stuff->nbytesAuthData, protodata, |
| 485 | &authdata_len, &pAuthdata); |
| 486 | if ((XID) ~0L == authId) { |
| 487 | err = SecurityErrorBase + XSecurityBadAuthorizationProtocol; |
| 488 | goto bailout; |
| 489 | } |
| 490 | |
| 491 | /* now that we've added the auth, remember to remove it if we have to |
| 492 | * abort the request for some reason (like allocation failure) |
| 493 | */ |
| 494 | removeAuth = TRUE; |
| 495 | |
| 496 | /* associate additional information with this auth ID */ |
| 497 | |
| 498 | pAuth = malloc(sizeof(SecurityAuthorizationRec)); |
| 499 | if (!pAuth) { |
| 500 | err = BadAlloc; |
| 501 | goto bailout; |
| 502 | } |
| 503 | |
| 504 | /* fill in the auth fields */ |
| 505 | |
| 506 | pAuth->id = authId; |
| 507 | pAuth->timeout = timeout; |
| 508 | pAuth->group = group; |
| 509 | pAuth->trustLevel = trustLevel; |
| 510 | pAuth->refcnt = 0; /* the auth was just created; nobody's using it yet */ |
| 511 | pAuth->secondsRemaining = 0; |
| 512 | pAuth->timer = NULL; |
| 513 | pAuth->eventClients = NULL; |
| 514 | |
| 515 | /* handle event selection */ |
| 516 | if (eventMask) { |
| 517 | err = SecurityEventSelectForAuthorization(pAuth, client, eventMask); |
| 518 | if (err != Success) |
| 519 | goto bailout; |
| 520 | } |
| 521 | |
| 522 | if (!AddResource(authId, SecurityAuthorizationResType, pAuth)) { |
| 523 | err = BadAlloc; |
| 524 | goto bailout; |
| 525 | } |
| 526 | |
| 527 | /* start the timer ticking */ |
| 528 | |
| 529 | if (pAuth->timeout != 0) |
| 530 | SecurityStartAuthorizationTimer(pAuth); |
| 531 | |
| 532 | /* tell client the auth id and data */ |
| 533 | |
| 534 | rep = (xSecurityGenerateAuthorizationReply) { |
| 535 | .type = X_Reply, |
| 536 | .sequenceNumber = client->sequence, |
| 537 | .length = bytes_to_int32(authdata_len), |
| 538 | .authId = authId, |
| 539 | .dataLength = authdata_len |
| 540 | }; |
| 541 | |
| 542 | if (client->swapped) { |
| 543 | swapl(&rep.length); |
| 544 | swaps(&rep.sequenceNumber); |
| 545 | swapl(&rep.authId); |
| 546 | swaps(&rep.dataLength); |
| 547 | } |
| 548 | |
| 549 | WriteToClient(client, SIZEOF(xSecurityGenerateAuthorizationReply), &rep); |
| 550 | WriteToClient(client, authdata_len, pAuthdata); |
| 551 | |
| 552 | SecurityAudit |
| 553 | ("client %d generated authorization %d trust %d timeout %d group %d events %d\n", |
| 554 | client->index, pAuth->id, pAuth->trustLevel, pAuth->timeout, |
| 555 | pAuth->group, eventMask); |
| 556 | |
| 557 | /* the request succeeded; don't call RemoveAuthorization or free pAuth */ |
| 558 | return Success; |
| 559 | |
| 560 | bailout: |
| 561 | if (removeAuth) |
| 562 | RemoveAuthorization(stuff->nbytesAuthProto, protoname, |
| 563 | authdata_len, pAuthdata); |
| 564 | free(pAuth); |
| 565 | return err; |
| 566 | |
| 567 | } /* ProcSecurityGenerateAuthorization */ |
| 568 | |
| 569 | static int |
| 570 | ProcSecurityRevokeAuthorization(ClientPtr client) |
| 571 | { |
| 572 | REQUEST(xSecurityRevokeAuthorizationReq); |
| 573 | SecurityAuthorizationPtr pAuth; |
| 574 | int rc; |
| 575 | |
| 576 | REQUEST_SIZE_MATCH(xSecurityRevokeAuthorizationReq); |
| 577 | |
| 578 | rc = dixLookupResourceByType((pointer *) &pAuth, stuff->authId, |
| 579 | SecurityAuthorizationResType, client, |
| 580 | DixDestroyAccess); |
| 581 | if (rc != Success) |
| 582 | return rc; |
| 583 | |
| 584 | FreeResource(stuff->authId, RT_NONE); |
| 585 | return Success; |
| 586 | } /* ProcSecurityRevokeAuthorization */ |
| 587 | |
| 588 | static int |
| 589 | ProcSecurityDispatch(ClientPtr client) |
| 590 | { |
| 591 | REQUEST(xReq); |
| 592 | |
| 593 | switch (stuff->data) { |
| 594 | case X_SecurityQueryVersion: |
| 595 | return ProcSecurityQueryVersion(client); |
| 596 | case X_SecurityGenerateAuthorization: |
| 597 | return ProcSecurityGenerateAuthorization(client); |
| 598 | case X_SecurityRevokeAuthorization: |
| 599 | return ProcSecurityRevokeAuthorization(client); |
| 600 | default: |
| 601 | return BadRequest; |
| 602 | } |
| 603 | } /* ProcSecurityDispatch */ |
| 604 | |
| 605 | static int |
| 606 | SProcSecurityQueryVersion(ClientPtr client) |
| 607 | { |
| 608 | REQUEST(xSecurityQueryVersionReq); |
| 609 | |
| 610 | swaps(&stuff->length); |
| 611 | REQUEST_SIZE_MATCH(xSecurityQueryVersionReq); |
| 612 | swaps(&stuff->majorVersion); |
| 613 | swaps(&stuff->minorVersion); |
| 614 | return ProcSecurityQueryVersion(client); |
| 615 | } /* SProcSecurityQueryVersion */ |
| 616 | |
| 617 | static int |
| 618 | SProcSecurityGenerateAuthorization(ClientPtr client) |
| 619 | { |
| 620 | REQUEST(xSecurityGenerateAuthorizationReq); |
| 621 | CARD32 *values; |
| 622 | unsigned long nvalues; |
| 623 | int values_offset; |
| 624 | |
| 625 | swaps(&stuff->length); |
| 626 | REQUEST_AT_LEAST_SIZE(xSecurityGenerateAuthorizationReq); |
| 627 | swaps(&stuff->nbytesAuthProto); |
| 628 | swaps(&stuff->nbytesAuthData); |
| 629 | swapl(&stuff->valueMask); |
| 630 | values_offset = bytes_to_int32(stuff->nbytesAuthProto) + |
| 631 | bytes_to_int32(stuff->nbytesAuthData); |
| 632 | if (values_offset > |
| 633 | stuff->length - bytes_to_int32(sz_xSecurityGenerateAuthorizationReq)) |
| 634 | return BadLength; |
| 635 | values = (CARD32 *) (&stuff[1]) + values_offset; |
| 636 | nvalues = (((CARD32 *) stuff) + stuff->length) - values; |
| 637 | SwapLongs(values, nvalues); |
| 638 | return ProcSecurityGenerateAuthorization(client); |
| 639 | } /* SProcSecurityGenerateAuthorization */ |
| 640 | |
| 641 | static int |
| 642 | SProcSecurityRevokeAuthorization(ClientPtr client) |
| 643 | { |
| 644 | REQUEST(xSecurityRevokeAuthorizationReq); |
| 645 | |
| 646 | swaps(&stuff->length); |
| 647 | REQUEST_SIZE_MATCH(xSecurityRevokeAuthorizationReq); |
| 648 | swapl(&stuff->authId); |
| 649 | return ProcSecurityRevokeAuthorization(client); |
| 650 | } /* SProcSecurityRevokeAuthorization */ |
| 651 | |
| 652 | static int |
| 653 | SProcSecurityDispatch(ClientPtr client) |
| 654 | { |
| 655 | REQUEST(xReq); |
| 656 | |
| 657 | switch (stuff->data) { |
| 658 | case X_SecurityQueryVersion: |
| 659 | return SProcSecurityQueryVersion(client); |
| 660 | case X_SecurityGenerateAuthorization: |
| 661 | return SProcSecurityGenerateAuthorization(client); |
| 662 | case X_SecurityRevokeAuthorization: |
| 663 | return SProcSecurityRevokeAuthorization(client); |
| 664 | default: |
| 665 | return BadRequest; |
| 666 | } |
| 667 | } /* SProcSecurityDispatch */ |
| 668 | |
| 669 | static void |
| 670 | SwapSecurityAuthorizationRevokedEvent(xSecurityAuthorizationRevokedEvent * from, |
| 671 | xSecurityAuthorizationRevokedEvent * to) |
| 672 | { |
| 673 | to->type = from->type; |
| 674 | to->detail = from->detail; |
| 675 | cpswaps(from->sequenceNumber, to->sequenceNumber); |
| 676 | cpswapl(from->authId, to->authId); |
| 677 | } |
| 678 | |
| 679 | /* SecurityCheckDeviceAccess |
| 680 | * |
| 681 | * Arguments: |
| 682 | * client is the client attempting to access a device. |
| 683 | * dev is the device being accessed. |
| 684 | * fromRequest is TRUE if the device access is a direct result of |
| 685 | * the client executing some request and FALSE if it is a |
| 686 | * result of the server trying to send an event (e.g. KeymapNotify) |
| 687 | * to the client. |
| 688 | * Returns: |
| 689 | * TRUE if the device access should be allowed, else FALSE. |
| 690 | * |
| 691 | * Side Effects: |
| 692 | * An audit message is generated if access is denied. |
| 693 | */ |
| 694 | |
| 695 | static void |
| 696 | SecurityDevice(CallbackListPtr *pcbl, pointer unused, pointer calldata) |
| 697 | { |
| 698 | XaceDeviceAccessRec *rec = calldata; |
| 699 | SecurityStateRec *subj, *obj; |
| 700 | Mask requested = rec->access_mode; |
| 701 | Mask allowed = SecurityDeviceMask; |
| 702 | |
| 703 | subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); |
| 704 | obj = dixLookupPrivate(&serverClient->devPrivates, stateKey); |
| 705 | |
| 706 | if (rec->dev != inputInfo.keyboard) |
| 707 | /* this extension only supports the core keyboard */ |
| 708 | allowed = requested; |
| 709 | |
| 710 | if (SecurityDoCheck(subj, obj, requested, allowed) != Success) { |
| 711 | SecurityAudit("Security denied client %d keyboard access on request " |
| 712 | "%s\n", rec->client->index, |
| 713 | SecurityLookupRequestName(rec->client)); |
| 714 | rec->status = BadAccess; |
| 715 | } |
| 716 | } |
| 717 | |
| 718 | /* SecurityResource |
| 719 | * |
| 720 | * This function gets plugged into client->CheckAccess and is called from |
| 721 | * SecurityLookupIDByType/Class to determine if the client can access the |
| 722 | * resource. |
| 723 | * |
| 724 | * Arguments: |
| 725 | * client is the client doing the resource access. |
| 726 | * id is the resource id. |
| 727 | * rtype is its type or class. |
| 728 | * access_mode represents the intended use of the resource; see |
| 729 | * resource.h. |
| 730 | * res is a pointer to the resource structure for this resource. |
| 731 | * |
| 732 | * Returns: |
| 733 | * If access is granted, the value of rval that was passed in, else FALSE. |
| 734 | * |
| 735 | * Side Effects: |
| 736 | * Disallowed resource accesses are audited. |
| 737 | */ |
| 738 | |
| 739 | static void |
| 740 | SecurityResource(CallbackListPtr *pcbl, pointer unused, pointer calldata) |
| 741 | { |
| 742 | XaceResourceAccessRec *rec = calldata; |
| 743 | SecurityStateRec *subj, *obj; |
| 744 | int cid = CLIENT_ID(rec->id); |
| 745 | Mask requested = rec->access_mode; |
| 746 | Mask allowed = SecurityResourceMask; |
| 747 | |
| 748 | subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); |
| 749 | |
| 750 | /* disable background None for untrusted windows */ |
| 751 | if ((requested & DixCreateAccess) && (rec->rtype == RT_WINDOW)) |
| 752 | if (subj->haveState && subj->trustLevel != XSecurityClientTrusted) |
| 753 | ((WindowPtr) rec->res)->forcedBG = TRUE; |
| 754 | |
| 755 | /* additional permissions for specific resource types */ |
| 756 | if (rec->rtype == RT_WINDOW) |
| 757 | allowed |= SecurityWindowExtraMask; |
| 758 | |
| 759 | /* special checks for server-owned resources */ |
| 760 | if (cid == 0) { |
| 761 | if (rec->rtype & RC_DRAWABLE) |
| 762 | /* additional operations allowed on root windows */ |
| 763 | allowed |= SecurityRootWindowExtraMask; |
| 764 | |
| 765 | else if (rec->rtype == RT_COLORMAP) |
| 766 | /* allow access to default colormaps */ |
| 767 | allowed = requested; |
| 768 | |
| 769 | else |
| 770 | /* allow read access to other server-owned resources */ |
| 771 | allowed |= DixReadAccess; |
| 772 | } |
| 773 | |
| 774 | if (clients[cid] != NULL) { |
| 775 | obj = dixLookupPrivate(&clients[cid]->devPrivates, stateKey); |
| 776 | if (SecurityDoCheck(subj, obj, requested, allowed) == Success) |
| 777 | return; |
| 778 | } |
| 779 | |
| 780 | SecurityAudit("Security: denied client %d access %x to resource 0x%x " |
| 781 | "of client %d on request %s\n", rec->client->index, |
| 782 | requested, rec->id, cid, |
| 783 | SecurityLookupRequestName(rec->client)); |
| 784 | rec->status = BadAccess; /* deny access */ |
| 785 | } |
| 786 | |
| 787 | static void |
| 788 | SecurityExtension(CallbackListPtr *pcbl, pointer unused, pointer calldata) |
| 789 | { |
| 790 | XaceExtAccessRec *rec = calldata; |
| 791 | SecurityStateRec *subj; |
| 792 | int i = 0; |
| 793 | |
| 794 | subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); |
| 795 | |
| 796 | if (subj->haveState && subj->trustLevel == XSecurityClientTrusted) |
| 797 | return; |
| 798 | |
| 799 | while (SecurityTrustedExtensions[i]) |
| 800 | if (!strcmp(SecurityTrustedExtensions[i++], rec->ext->name)) |
| 801 | return; |
| 802 | |
| 803 | SecurityAudit("Security: denied client %d access to extension " |
| 804 | "%s on request %s\n", |
| 805 | rec->client->index, rec->ext->name, |
| 806 | SecurityLookupRequestName(rec->client)); |
| 807 | rec->status = BadAccess; |
| 808 | } |
| 809 | |
| 810 | static void |
| 811 | SecurityServer(CallbackListPtr *pcbl, pointer unused, pointer calldata) |
| 812 | { |
| 813 | XaceServerAccessRec *rec = calldata; |
| 814 | SecurityStateRec *subj, *obj; |
| 815 | Mask requested = rec->access_mode; |
| 816 | Mask allowed = SecurityServerMask; |
| 817 | |
| 818 | subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); |
| 819 | obj = dixLookupPrivate(&serverClient->devPrivates, stateKey); |
| 820 | |
| 821 | if (SecurityDoCheck(subj, obj, requested, allowed) != Success) { |
| 822 | SecurityAudit("Security: denied client %d access to server " |
| 823 | "configuration request %s\n", rec->client->index, |
| 824 | SecurityLookupRequestName(rec->client)); |
| 825 | rec->status = BadAccess; |
| 826 | } |
| 827 | } |
| 828 | |
| 829 | static void |
| 830 | SecurityClient(CallbackListPtr *pcbl, pointer unused, pointer calldata) |
| 831 | { |
| 832 | XaceClientAccessRec *rec = calldata; |
| 833 | SecurityStateRec *subj, *obj; |
| 834 | Mask requested = rec->access_mode; |
| 835 | Mask allowed = SecurityClientMask; |
| 836 | |
| 837 | subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); |
| 838 | obj = dixLookupPrivate(&rec->target->devPrivates, stateKey); |
| 839 | |
| 840 | if (SecurityDoCheck(subj, obj, requested, allowed) != Success) { |
| 841 | SecurityAudit("Security: denied client %d access to client %d on " |
| 842 | "request %s\n", rec->client->index, rec->target->index, |
| 843 | SecurityLookupRequestName(rec->client)); |
| 844 | rec->status = BadAccess; |
| 845 | } |
| 846 | } |
| 847 | |
| 848 | static void |
| 849 | SecurityProperty(CallbackListPtr *pcbl, pointer unused, pointer calldata) |
| 850 | { |
| 851 | XacePropertyAccessRec *rec = calldata; |
| 852 | SecurityStateRec *subj, *obj; |
| 853 | ATOM name = (*rec->ppProp)->propertyName; |
| 854 | Mask requested = rec->access_mode; |
| 855 | Mask allowed = SecurityResourceMask | DixReadAccess; |
| 856 | |
| 857 | subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); |
| 858 | obj = dixLookupPrivate(&wClient(rec->pWin)->devPrivates, stateKey); |
| 859 | |
| 860 | if (SecurityDoCheck(subj, obj, requested, allowed) != Success) { |
| 861 | SecurityAudit("Security: denied client %d access to property %s " |
| 862 | "(atom 0x%x) window 0x%x of client %d on request %s\n", |
| 863 | rec->client->index, NameForAtom(name), name, |
| 864 | rec->pWin->drawable.id, wClient(rec->pWin)->index, |
| 865 | SecurityLookupRequestName(rec->client)); |
| 866 | rec->status = BadAccess; |
| 867 | } |
| 868 | } |
| 869 | |
| 870 | static void |
| 871 | SecuritySend(CallbackListPtr *pcbl, pointer unused, pointer calldata) |
| 872 | { |
| 873 | XaceSendAccessRec *rec = calldata; |
| 874 | SecurityStateRec *subj, *obj; |
| 875 | |
| 876 | if (rec->client) { |
| 877 | int i; |
| 878 | |
| 879 | subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); |
| 880 | obj = dixLookupPrivate(&wClient(rec->pWin)->devPrivates, stateKey); |
| 881 | |
| 882 | if (SecurityDoCheck(subj, obj, DixSendAccess, 0) == Success) |
| 883 | return; |
| 884 | |
| 885 | for (i = 0; i < rec->count; i++) |
| 886 | if (rec->events[i].u.u.type != UnmapNotify && |
| 887 | rec->events[i].u.u.type != ConfigureRequest && |
| 888 | rec->events[i].u.u.type != ClientMessage) { |
| 889 | |
| 890 | SecurityAudit("Security: denied client %d from sending event " |
| 891 | "of type %s to window 0x%x of client %d\n", |
| 892 | rec->client->index, |
| 893 | LookupEventName(rec->events[i].u.u.type), |
| 894 | rec->pWin->drawable.id, |
| 895 | wClient(rec->pWin)->index); |
| 896 | rec->status = BadAccess; |
| 897 | return; |
| 898 | } |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | static void |
| 903 | SecurityReceive(CallbackListPtr *pcbl, pointer unused, pointer calldata) |
| 904 | { |
| 905 | XaceReceiveAccessRec *rec = calldata; |
| 906 | SecurityStateRec *subj, *obj; |
| 907 | |
| 908 | subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); |
| 909 | obj = dixLookupPrivate(&wClient(rec->pWin)->devPrivates, stateKey); |
| 910 | |
| 911 | if (SecurityDoCheck(subj, obj, DixReceiveAccess, 0) == Success) |
| 912 | return; |
| 913 | |
| 914 | SecurityAudit("Security: denied client %d from receiving an event " |
| 915 | "sent to window 0x%x of client %d\n", |
| 916 | rec->client->index, rec->pWin->drawable.id, |
| 917 | wClient(rec->pWin)->index); |
| 918 | rec->status = BadAccess; |
| 919 | } |
| 920 | |
| 921 | /* SecurityClientStateCallback |
| 922 | * |
| 923 | * Arguments: |
| 924 | * pcbl is &ClientStateCallback. |
| 925 | * nullata is NULL. |
| 926 | * calldata is a pointer to a NewClientInfoRec (include/dixstruct.h) |
| 927 | * which contains information about client state changes. |
| 928 | * |
| 929 | * Returns: nothing. |
| 930 | * |
| 931 | * Side Effects: |
| 932 | * |
| 933 | * If a new client is connecting, its authorization ID is copied to |
| 934 | * client->authID. If this is a generated authorization, its reference |
| 935 | * count is bumped, its timer is cancelled if it was running, and its |
| 936 | * trustlevel is copied to TRUSTLEVEL(client). |
| 937 | * |
| 938 | * If a client is disconnecting and the client was using a generated |
| 939 | * authorization, the authorization's reference count is decremented, and |
| 940 | * if it is now zero, the timer for this authorization is started. |
| 941 | */ |
| 942 | |
| 943 | static void |
| 944 | SecurityClientState(CallbackListPtr *pcbl, pointer unused, pointer calldata) |
| 945 | { |
| 946 | NewClientInfoRec *pci = calldata; |
| 947 | SecurityStateRec *state; |
| 948 | SecurityAuthorizationPtr pAuth; |
| 949 | int rc; |
| 950 | |
| 951 | state = dixLookupPrivate(&pci->client->devPrivates, stateKey); |
| 952 | |
| 953 | switch (pci->client->clientState) { |
| 954 | case ClientStateInitial: |
| 955 | state->trustLevel = XSecurityClientTrusted; |
| 956 | state->authId = None; |
| 957 | state->haveState = TRUE; |
| 958 | state->live = FALSE; |
| 959 | break; |
| 960 | |
| 961 | case ClientStateRunning: |
| 962 | state->authId = AuthorizationIDOfClient(pci->client); |
| 963 | rc = dixLookupResourceByType((pointer *) &pAuth, state->authId, |
| 964 | SecurityAuthorizationResType, serverClient, |
| 965 | DixGetAttrAccess); |
| 966 | if (rc == Success) { |
| 967 | /* it is a generated authorization */ |
| 968 | pAuth->refcnt++; |
| 969 | state->live = TRUE; |
| 970 | if (pAuth->refcnt == 1 && pAuth->timer) |
| 971 | TimerCancel(pAuth->timer); |
| 972 | |
| 973 | state->trustLevel = pAuth->trustLevel; |
| 974 | } |
| 975 | break; |
| 976 | |
| 977 | case ClientStateGone: |
| 978 | case ClientStateRetained: |
| 979 | rc = dixLookupResourceByType((pointer *) &pAuth, state->authId, |
| 980 | SecurityAuthorizationResType, serverClient, |
| 981 | DixGetAttrAccess); |
| 982 | if (rc == Success && state->live) { |
| 983 | /* it is a generated authorization */ |
| 984 | pAuth->refcnt--; |
| 985 | state->live = FALSE; |
| 986 | if (pAuth->refcnt == 0) |
| 987 | SecurityStartAuthorizationTimer(pAuth); |
| 988 | } |
| 989 | break; |
| 990 | |
| 991 | default: |
| 992 | break; |
| 993 | } |
| 994 | } |
| 995 | |
| 996 | /* SecurityResetProc |
| 997 | * |
| 998 | * Arguments: |
| 999 | * extEntry is the extension information for the security extension. |
| 1000 | * |
| 1001 | * Returns: nothing. |
| 1002 | * |
| 1003 | * Side Effects: |
| 1004 | * Performs any cleanup needed by Security at server shutdown time. |
| 1005 | */ |
| 1006 | |
| 1007 | static void |
| 1008 | SecurityResetProc(ExtensionEntry * extEntry) |
| 1009 | { |
| 1010 | /* Unregister callbacks */ |
| 1011 | DeleteCallback(&ClientStateCallback, SecurityClientState, NULL); |
| 1012 | |
| 1013 | XaceDeleteCallback(XACE_EXT_DISPATCH, SecurityExtension, NULL); |
| 1014 | XaceDeleteCallback(XACE_RESOURCE_ACCESS, SecurityResource, NULL); |
| 1015 | XaceDeleteCallback(XACE_DEVICE_ACCESS, SecurityDevice, NULL); |
| 1016 | XaceDeleteCallback(XACE_PROPERTY_ACCESS, SecurityProperty, NULL); |
| 1017 | XaceDeleteCallback(XACE_SEND_ACCESS, SecuritySend, NULL); |
| 1018 | XaceDeleteCallback(XACE_RECEIVE_ACCESS, SecurityReceive, NULL); |
| 1019 | XaceDeleteCallback(XACE_CLIENT_ACCESS, SecurityClient, NULL); |
| 1020 | XaceDeleteCallback(XACE_EXT_ACCESS, SecurityExtension, NULL); |
| 1021 | XaceDeleteCallback(XACE_SERVER_ACCESS, SecurityServer, NULL); |
| 1022 | } |
| 1023 | |
| 1024 | /* SecurityExtensionInit |
| 1025 | * |
| 1026 | * Arguments: none. |
| 1027 | * |
| 1028 | * Returns: nothing. |
| 1029 | * |
| 1030 | * Side Effects: |
| 1031 | * Enables the Security extension if possible. |
| 1032 | */ |
| 1033 | |
| 1034 | void |
| 1035 | SecurityExtensionInit(void) |
| 1036 | { |
| 1037 | ExtensionEntry *extEntry; |
| 1038 | int ret = TRUE; |
| 1039 | |
| 1040 | SecurityAuthorizationResType = |
| 1041 | CreateNewResourceType(SecurityDeleteAuthorization, |
| 1042 | "SecurityAuthorization"); |
| 1043 | |
| 1044 | RTEventClient = |
| 1045 | CreateNewResourceType(SecurityDeleteAuthorizationEventClient, |
| 1046 | "SecurityEventClient"); |
| 1047 | |
| 1048 | if (!SecurityAuthorizationResType || !RTEventClient) |
| 1049 | return; |
| 1050 | |
| 1051 | RTEventClient |= RC_NEVERRETAIN; |
| 1052 | |
| 1053 | /* Allocate the private storage */ |
| 1054 | if (!dixRegisterPrivateKey |
| 1055 | (stateKey, PRIVATE_CLIENT, sizeof(SecurityStateRec))) |
| 1056 | FatalError("SecurityExtensionSetup: Can't allocate client private.\n"); |
| 1057 | |
| 1058 | /* Register callbacks */ |
| 1059 | ret &= AddCallback(&ClientStateCallback, SecurityClientState, NULL); |
| 1060 | |
| 1061 | ret &= XaceRegisterCallback(XACE_EXT_DISPATCH, SecurityExtension, NULL); |
| 1062 | ret &= XaceRegisterCallback(XACE_RESOURCE_ACCESS, SecurityResource, NULL); |
| 1063 | ret &= XaceRegisterCallback(XACE_DEVICE_ACCESS, SecurityDevice, NULL); |
| 1064 | ret &= XaceRegisterCallback(XACE_PROPERTY_ACCESS, SecurityProperty, NULL); |
| 1065 | ret &= XaceRegisterCallback(XACE_SEND_ACCESS, SecuritySend, NULL); |
| 1066 | ret &= XaceRegisterCallback(XACE_RECEIVE_ACCESS, SecurityReceive, NULL); |
| 1067 | ret &= XaceRegisterCallback(XACE_CLIENT_ACCESS, SecurityClient, NULL); |
| 1068 | ret &= XaceRegisterCallback(XACE_EXT_ACCESS, SecurityExtension, NULL); |
| 1069 | ret &= XaceRegisterCallback(XACE_SERVER_ACCESS, SecurityServer, NULL); |
| 1070 | |
| 1071 | if (!ret) |
| 1072 | FatalError("SecurityExtensionSetup: Failed to register callbacks\n"); |
| 1073 | |
| 1074 | /* Add extension to server */ |
| 1075 | extEntry = AddExtension(SECURITY_EXTENSION_NAME, |
| 1076 | XSecurityNumberEvents, XSecurityNumberErrors, |
| 1077 | ProcSecurityDispatch, SProcSecurityDispatch, |
| 1078 | SecurityResetProc, StandardMinorOpcode); |
| 1079 | |
| 1080 | SecurityErrorBase = extEntry->errorBase; |
| 1081 | SecurityEventBase = extEntry->eventBase; |
| 1082 | |
| 1083 | EventSwapVector[SecurityEventBase + XSecurityAuthorizationRevoked] = |
| 1084 | (EventSwapPtr) SwapSecurityAuthorizationRevokedEvent; |
| 1085 | |
| 1086 | SetResourceTypeErrorValue(SecurityAuthorizationResType, |
| 1087 | SecurityErrorBase + XSecurityBadAuthorization); |
| 1088 | |
| 1089 | /* Label objects that were created before we could register ourself */ |
| 1090 | SecurityLabelInitial(); |
| 1091 | } |