1 /* Copyright (c) 2012-2013 Apple Inc. All Rights Reserved. */
9 #include "authutilities.h"
11 #include "mechanism.h"
13 #include "authitems.h"
14 #include "debugging.h"
16 #include "connection.h"
18 #include <bsm/libbsm.h>
19 #include <Security/Authorization.h>
20 #include <Security/AuthorizationPriv.h>
21 #include <Security/AuthorizationTagsPriv.h>
22 #include <Security/AuthorizationPlugin.h>
23 #include <xpc/private.h>
24 #include <dispatch/dispatch.h>
25 #include <CoreFoundation/CoreFoundation.h>
26 #include <CoreFoundation/CFXPCBridge.h>
27 #include <IOKit/IOMessage.h>
28 #include <IOKit/pwr_mgt/IOPMLib.h>
29 #include <IOKit/pwr_mgt/IOPMLibPrivate.h>
31 #define MAX_PROCESS_RIGHTS 100
33 static CFMutableDictionaryRef gProcessMap
= NULL
;
34 static CFMutableDictionaryRef gSessionMap
= NULL
;
35 static CFMutableDictionaryRef gAuthTokenMap
= NULL
;
36 static authdb_t gDatabase
= NULL
;
38 static dispatch_queue_t power_queue
;
39 static bool gInDarkWake
= false;
40 static IOPMConnection gIOPMconn
= NULL
;
41 static bool gXPCTransaction
= false;
43 static dispatch_queue_t
44 get_server_dispatch_queue()
46 static dispatch_once_t onceToken
;
47 static dispatch_queue_t server_queue
= NULL
;
49 dispatch_once(&onceToken
, ^{
50 server_queue
= dispatch_queue_create("com.apple.security.auth.server", DISPATCH_QUEUE_SERIAL
);
51 check(server_queue
!= NULL
);
57 static Boolean
_processEqualCallBack(const void *value1
, const void *value2
)
59 audit_info_s
* info1
= (audit_info_s
*)value1
;
60 audit_info_s
* info2
= (audit_info_s
*)value2
;
61 if (info1
->pid
== info2
->pid
) {
62 if (info1
->tid
== info2
->tid
) {
69 static CFHashCode
_processHashCallBack(const void *value
)
71 audit_info_s
* info
= (audit_info_s
*)value
;
72 uint64_t crc
= crc64_init();
73 crc
= crc64_update(crc
, &info
->pid
, sizeof(info
->pid
));
74 crc
= crc64_update(crc
, &info
->tid
, sizeof(info
->tid
));
75 crc
= crc64_final(crc
);
76 return (CFHashCode
)crc
;
79 static const CFDictionaryKeyCallBacks kProcessMapKeyCallBacks
= {
83 .copyDescription
= NULL
,
84 .equal
= &_processEqualCallBack
,
85 .hash
= &_processHashCallBack
88 static Boolean
_sessionEqualCallBack(const void *value1
, const void *value2
)
90 return (*(session_id_t
*)value1
) == (*(session_id_t
*)value2
);
93 static CFHashCode
_sessionHashCallBack(const void *value
)
95 return (CFHashCode
)(*(session_id_t
*)(value
));
98 static const CFDictionaryKeyCallBacks kSessionMapKeyCallBacks
= {
102 .copyDescription
= NULL
,
103 .equal
= &_sessionEqualCallBack
,
104 .hash
= &_sessionHashCallBack
107 void server_cleanup()
109 CFRelease(gProcessMap
);
110 CFRelease(gSessionMap
);
111 CFRelease(gAuthTokenMap
);
113 IOPMConnectionSetDispatchQueue(gIOPMconn
, NULL
);
114 IOPMConnectionRelease(gIOPMconn
);
116 dispatch_queue_t queue
= get_server_dispatch_queue();
118 dispatch_release(queue
);
120 dispatch_release(power_queue
);
123 static void _IOMPCallBack(void * param AUTH_UNUSED
, IOPMConnection connection
, IOPMConnectionMessageToken token
, IOPMSystemPowerStateCapabilities capabilities
)
125 LOGV("server: IOMP powerstates %i", capabilities
);
126 if (capabilities
& kIOPMSystemPowerStateCapabilityDisk
)
127 LOGV("server: disk");
128 if (capabilities
& kIOPMSystemPowerStateCapabilityNetwork
)
130 if (capabilities
& kIOPMSystemPowerStateCapabilityAudio
)
131 LOGV("server: audio");
132 if (capabilities
& kIOPMSystemPowerStateCapabilityVideo
)
133 LOGV("server: video");
135 /* if cpu and no display -> in DarkWake */
136 LOGD("server: DarkWake check current=%i==%i", (capabilities
& (kIOPMSystemPowerStateCapabilityCPU
|kIOPMSystemPowerStateCapabilityVideo
)), kIOPMSystemPowerStateCapabilityCPU
);
137 if ((capabilities
& (kIOPMSystemPowerStateCapabilityCPU
|kIOPMSystemPowerStateCapabilityVideo
)) == kIOPMSystemPowerStateCapabilityCPU
) {
138 LOGV("server: enter DarkWake");
140 } else if (gInDarkWake
) {
141 LOGV("server: exit DarkWake");
145 (void)IOPMConnectionAcknowledgeEvent(connection
, token
);
151 _setupDarkWake(void *__unused ctx
)
155 IOPMConnectionCreate(CFSTR("IOPowerWatcher"),
156 kIOPMSystemPowerStateCapabilityDisk
157 | kIOPMSystemPowerStateCapabilityNetwork
158 | kIOPMSystemPowerStateCapabilityAudio
159 | kIOPMSystemPowerStateCapabilityVideo
,
162 ret
= IOPMConnectionSetNotification(gIOPMconn
, NULL
, _IOMPCallBack
);
163 if (ret
!= kIOReturnSuccess
)
166 IOPMConnectionSetDispatchQueue(gIOPMconn
, power_queue
);
168 IOPMScheduleUserActiveChangedNotification(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT
, 0), ^(bool active
) {
175 bool server_in_dark_wake()
180 authdb_t
server_get_database()
185 static void _setupAuditSessionMonitor()
187 dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT
, 0), ^{
188 au_sdev_handle_t
*dev
= au_sdev_open(AU_SDEVF_ALLSESSIONS
);
190 auditinfo_addr_t aia
;
193 LOGE("server: could not open %s %d", AUDIT_SDEV_PATH
, errno
);
198 if (0 != au_sdev_read_aia(dev
, &event
, &aia
)) {
199 LOGE("server: au_sdev_read_aia failed: %d", errno
);
202 LOGD("server: au_sdev_handle_t event=%i, session=%i", event
, aia
.ai_asid
);
203 if (event
== AUE_SESSION_END
) {
204 dispatch_async(get_server_dispatch_queue(), ^{
205 LOGV("server: session %i destroyed", aia
.ai_asid
);
206 CFDictionaryRemoveValue(gSessionMap
, &aia
.ai_asid
);
214 static void _setupSignalHandlers()
216 signal(SIGTERM
, SIG_IGN
);
217 static dispatch_source_t sigtermHandler
;
218 sigtermHandler
= dispatch_source_create(DISPATCH_SOURCE_TYPE_SIGNAL
, SIGTERM
, 0, get_server_dispatch_queue());
219 if (sigtermHandler
) {
220 dispatch_source_set_event_handler(sigtermHandler
, ^{
222 // should we clean up any state?
225 dispatch_resume(sigtermHandler
);
229 OSStatus
server_init(void)
231 OSStatus status
= errAuthorizationSuccess
;
233 auditinfo_addr_t info
;
234 memset(&info
, 0, sizeof(info
));
235 getaudit_addr(&info
, sizeof(info
));
236 LOGV("server: uid=%i, sid=%i", info
.ai_auid
, info
.ai_asid
);
238 require_action(get_server_dispatch_queue() != NULL
, done
, status
= errAuthorizationInternal
);
240 gProcessMap
= CFDictionaryCreateMutable(kCFAllocatorDefault
, 0, &kProcessMapKeyCallBacks
, &kCFTypeDictionaryValueCallBacks
);
241 require_action(gProcessMap
!= NULL
, done
, status
= errAuthorizationInternal
);
243 gSessionMap
= CFDictionaryCreateMutable(kCFAllocatorDefault
, 0, &kSessionMapKeyCallBacks
, &kCFTypeDictionaryValueCallBacks
);
244 require_action(gSessionMap
!= NULL
, done
, status
= errAuthorizationInternal
);
246 gAuthTokenMap
= CFDictionaryCreateMutable(kCFAllocatorDefault
, 0, &kAuthTokenKeyCallBacks
, &kCFTypeDictionaryValueCallBacks
);
247 require_action(gAuthTokenMap
!= NULL
, done
, status
= errAuthorizationInternal
);
249 gDatabase
= authdb_create();
250 require_action(gDatabase
!= NULL
, done
, status
= errAuthorizationInternal
);
252 // check to see if we have an updates
253 authdb_connection_t dbconn
= authdb_connection_acquire(gDatabase
);
254 authdb_maintenance(dbconn
);
255 authdb_connection_release(&dbconn
);
257 power_queue
= dispatch_queue_create("com.apple.security.auth.power", DISPATCH_QUEUE_SERIAL
);
258 require_action(power_queue
!= NULL
, done
, status
= errAuthorizationInternal
);
259 dispatch_async_f(power_queue
, NULL
, _setupDarkWake
);
261 _setupAuditSessionMonitor();
262 _setupSignalHandlers();
268 static void _server_parse_audit_token(audit_token_t
* token
, audit_info_s
* info
)
271 memset(info
, 0, sizeof(*info
));
273 memset(&tid
, 0, sizeof(tid
));
274 audit_token_to_au32(*token
, &info
->auid
, &info
->euid
,
275 &info
->egid
, &info
->ruid
, &info
->rgid
,
276 &info
->pid
, &info
->asid
, &tid
);
277 info
->tid
= tid
.port
;
278 info
->opaqueToken
= *token
;
283 server_register_connection(xpc_connection_t connection
)
285 __block connection_t conn
= NULL
;
286 __block session_t session
= NULL
;
287 __block process_t proc
= NULL
;
288 __block CFIndex conn_count
= 0;
290 require(connection
!= NULL
, done
);
292 audit_token_t auditToken
;
294 xpc_connection_get_audit_token(connection
, &auditToken
);
295 _server_parse_audit_token(&auditToken
, &info
);
298 dispatch_sync(get_server_dispatch_queue(), ^{
299 session
= (session_t
)CFDictionaryGetValue(gSessionMap
, &info
.asid
);
303 session
= session_create(info
.asid
);
304 CFDictionarySetValue(gSessionMap
, session_get_key(session
), session
);
307 proc
= (process_t
)CFDictionaryGetValue(gProcessMap
, &info
);
313 conn
= connection_create(proc
);
314 conn_count
= process_add_connection(proc
, conn
);
316 proc
= process_create(&info
, session
);
318 conn
= connection_create(proc
);
319 conn_count
= process_add_connection(proc
, conn
);
320 session_add_process(session
, proc
);
321 CFDictionarySetValue(gProcessMap
, process_get_key(proc
), proc
);
325 if (!gXPCTransaction
) {
326 xpc_transaction_begin();
327 gXPCTransaction
= true;
331 LOGV("server[%i]: registered connection (total=%li)", info
.pid
, conn_count
);
334 CFReleaseSafe(session
);
340 server_unregister_connection(connection_t conn
)
342 assert(conn
); // marked non-null
343 process_t proc
= connection_get_process(conn
);
345 dispatch_sync(get_server_dispatch_queue(), ^{
346 CFIndex connectionCount
= process_get_connection_count(proc
);
347 LOGV("server[%i]: unregistered connection (total=%li)", process_get_pid(proc
), connectionCount
);
349 if (connectionCount
== 1) {
350 CFDictionaryRemoveValue(gProcessMap
, process_get_key(proc
));
353 if (CFDictionaryGetCount(gProcessMap
) == 0) {
354 xpc_transaction_end();
355 gXPCTransaction
= false;
358 // move the destruction of the connection/process off the server queue
363 server_register_auth_token(auth_token_t auth
)
365 assert(auth
); // marked non-null
366 dispatch_sync(get_server_dispatch_queue(), ^{
367 LOGV("server: registering auth %p", auth
);
368 CFDictionarySetValue(gAuthTokenMap
, auth_token_get_key(auth
), auth
);
369 auth_token_set_state(auth
, auth_token_state_registered
);
374 server_unregister_auth_token(auth_token_t auth
)
377 AuthorizationBlob blob
= *(AuthorizationBlob
*)auth_token_get_key(auth
);
378 dispatch_async(get_server_dispatch_queue(), ^{
379 LOGV("server: unregistering auth %p", auth
);
380 CFDictionaryRemoveValue(gAuthTokenMap
, &blob
);
385 server_find_copy_auth_token(AuthorizationBlob
* blob
)
387 assert(blob
); // marked non-null
388 __block auth_token_t auth
= NULL
;
389 dispatch_sync(get_server_dispatch_queue(), ^{
390 auth
= (auth_token_t
)CFDictionaryGetValue(gAuthTokenMap
, blob
);
399 server_find_copy_session(session_id_t sid
, bool create
)
401 __block session_t session
= NULL
;
403 dispatch_sync(get_server_dispatch_queue(), ^{
404 session
= (session_t
)CFDictionaryGetValue(gSessionMap
, &sid
);
408 session
= session_create(sid
);
410 CFDictionarySetValue(gSessionMap
, session_get_key(session
), session
);
422 _process_find_copy_auth_token_from_xpc(process_t proc
, xpc_object_t message
, auth_token_t
* auth_out
)
424 OSStatus status
= errAuthorizationSuccess
;
425 require_action(auth_out
!= NULL
, done
, status
= errAuthorizationInternal
);
428 AuthorizationBlob
* blob
= (AuthorizationBlob
*)xpc_dictionary_get_data(message
, AUTH_XPC_BLOB
, &len
);
429 require_action(blob
!= NULL
, done
, status
= errAuthorizationInvalidRef
);
430 require_action(len
== sizeof(AuthorizationBlob
), done
, status
= errAuthorizationInvalidRef
);
432 auth_token_t auth
= process_find_copy_auth_token(proc
, blob
);
433 require_action(auth
!= NULL
, done
, status
= errAuthorizationInvalidRef
);
436 LOGV("server[%i]: authtoken lookup %#x%x %p", process_get_pid(proc
), blob
->data
[1],blob
->data
[0], auth
);
438 LOGV("server[%i]: authtoken lookup %p", process_get_pid(proc
), auth
);
447 static OSStatus
_server_authorize(connection_t conn
, auth_token_t auth
, AuthorizationFlags flags
, auth_rights_t rights
, auth_items_t environment
, engine_t
* engine_out
)
449 __block OSStatus status
= errAuthorizationDenied
;
450 engine_t engine
= NULL
;
452 require_action(conn
, done
, status
= errAuthorizationInternal
);
454 engine
= engine_create(conn
, auth
);
455 require_action(engine
, done
, status
= errAuthorizationInternal
);
457 if (flags
& kAuthorizationFlagInteractionAllowed
) {
458 dispatch_sync(connection_get_dispatch_queue(conn
), ^{
459 connection_set_engine(conn
, engine
);
460 status
= engine_authorize(engine
, rights
, environment
, flags
);
461 connection_set_engine(conn
, NULL
);
464 status
= engine_authorize(engine
, rights
, environment
, flags
);
470 *engine_out
= engine
;
478 // IN: AUTH_XPC_RIGHTS, AUTH_XPC_ENVIRONMENT, AUTH_XPC_FLAGS
479 // OUT: AUTH_XPC_BLOB
481 authorization_create(connection_t conn
, xpc_object_t message
, xpc_object_t reply
)
483 OSStatus status
= errAuthorizationDenied
;
485 process_t proc
= connection_get_process(conn
);
488 auth_rights_t rights
= auth_rights_create_with_xpc(xpc_dictionary_get_value(message
, AUTH_XPC_RIGHTS
));
489 auth_items_t environment
= auth_items_create_with_xpc(xpc_dictionary_get_value(message
, AUTH_XPC_ENVIRONMENT
));
490 AuthorizationFlags flags
= (AuthorizationFlags
)xpc_dictionary_get_uint64(message
, AUTH_XPC_FLAGS
);
492 // Create Authorization Token
493 auth_token_t auth
= auth_token_create(proc
, flags
& kAuthorizationFlagLeastPrivileged
);
494 require_action(auth
!= NULL
, done
, status
= errAuthorizationInternal
);
496 if (!(flags
& kAuthorizationFlagNoData
)) {
497 process_add_auth_token(proc
,auth
);
500 status
= _server_authorize(conn
, auth
, flags
, rights
, environment
, NULL
);
501 require_noerr(status
, done
);
504 xpc_dictionary_set_data(reply
, AUTH_XPC_BLOB
, auth_token_get_blob(auth
), sizeof(AuthorizationBlob
));
507 CFReleaseSafe(rights
);
508 CFReleaseSafe(environment
);
513 // IN: AUTH_XPC_DATA, AUTH_XPC_ENVIRONMENT, AUTH_XPC_FLAGS
514 // OUT: AUTH_XPC_BLOB
515 OSStatus
authorization_create_with_audit_token(connection_t conn
, xpc_object_t message
, xpc_object_t reply
)
517 OSStatus status
= errAuthorizationDenied
;
518 auth_token_t auth
= NULL
;
520 process_t proc
= connection_get_process(conn
);
521 require(process_get_uid(proc
) == 0, done
); //only root can use this call
525 const char * data
= xpc_dictionary_get_data(message
, AUTH_XPC_DATA
, &len
);
526 require(data
!= NULL
, done
);
527 require(len
== sizeof(audit_token_t
), done
);
529 // auth_items_t environment = auth_items_create_with_xpc(xpc_dictionary_get_value(message, AUTH_XPC_ENVIRONMENT));
530 AuthorizationFlags flags
= (AuthorizationFlags
)xpc_dictionary_get_uint64(message
, AUTH_XPC_FLAGS
);
532 audit_info_s auditInfo
;
533 _server_parse_audit_token((audit_token_t
*)data
, &auditInfo
);
535 // Create Authorization Token
536 auth
= auth_token_create(proc
, flags
& kAuthorizationFlagLeastPrivileged
);
537 require_action(auth
!= NULL
, done
, status
= errAuthorizationInternal
);
539 process_add_auth_token(proc
,auth
);
542 xpc_dictionary_set_data(reply
, AUTH_XPC_BLOB
, auth_token_get_blob(auth
), sizeof(AuthorizationBlob
));
545 // CFReleaseSafe(environment);
550 // IN: AUTH_XPC_BLOB, AUTH_XPC_FLAGS
553 authorization_free(connection_t conn
, xpc_object_t message
, xpc_object_t reply AUTH_UNUSED
)
555 OSStatus status
= errAuthorizationSuccess
;
556 AuthorizationFlags flags
= 0;
557 process_t proc
= connection_get_process(conn
);
559 auth_token_t auth
= NULL
;
560 status
= _process_find_copy_auth_token_from_xpc(proc
, message
, &auth
);
561 require_noerr(status
, done
);
563 flags
= (AuthorizationFlags
)xpc_dictionary_get_uint64(message
, AUTH_XPC_FLAGS
);
565 if (flags
& kAuthorizationFlagDestroyRights
) {
566 auth_token_credentials_iterate(auth
, ^bool(credential_t cred
) {
567 credential_invalidate(cred
);
568 LOGV("engine[%i]: invalidating %scredential %s (%i) from authorization (%p)", connection_get_pid(conn
), credential_get_shared(cred
) ? "shared " : "", credential_get_name(cred
), credential_get_uid(cred
), auth
);
572 session_credentials_purge(auth_token_get_session(auth
));
575 process_remove_auth_token(proc
, auth
, flags
);
579 LOGV("server[%i]: AuthorizationFree %d (flags:%x)", connection_get_pid(conn
), (int)status
, (unsigned int)flags
);
583 // IN: AUTH_XPC_BLOB, AUTH_XPC_RIGHTS, AUTH_XPC_ENVIRONMENT, AUTH_XPC_FLAGS
584 // OUT: AUTH_XPC_OUT_ITEMS
586 authorization_copy_rights(connection_t conn
, xpc_object_t message
, xpc_object_t reply
)
588 OSStatus status
= errAuthorizationDenied
;
589 engine_t engine
= NULL
;
591 process_t proc
= connection_get_process(conn
);
594 auth_rights_t rights
= auth_rights_create_with_xpc(xpc_dictionary_get_value(message
, AUTH_XPC_RIGHTS
));
595 auth_items_t environment
= auth_items_create_with_xpc(xpc_dictionary_get_value(message
, AUTH_XPC_ENVIRONMENT
));
596 AuthorizationFlags flags
= (AuthorizationFlags
)xpc_dictionary_get_uint64(message
, AUTH_XPC_FLAGS
);
598 auth_token_t auth
= NULL
;
599 status
= _process_find_copy_auth_token_from_xpc(proc
, message
, &auth
);
600 require_noerr(status
, done
);
601 require_noerr_action_quiet(status
, done
, LOGE("copy_rights: no auth token"));
603 status
= _server_authorize(conn
, auth
, flags
, rights
, environment
, &engine
);
604 require_noerr_action_quiet(status
, done
, LOGE("copy_rights: _server_authorize failed"));
607 xpc_object_t outItems
= auth_rights_export_xpc(engine_get_granted_rights(engine
));
608 xpc_dictionary_set_value(reply
, AUTH_XPC_OUT_ITEMS
, outItems
);
609 xpc_release_safe(outItems
);
612 CFReleaseSafe(rights
);
613 CFReleaseSafe(environment
);
615 CFReleaseSafe(engine
);
620 // IN: AUTH_XPC_BLOB, AUTH_XPC_TAG
621 // OUT: AUTH_XPC_OUT_ITEMS
623 authorization_copy_info(connection_t conn
, xpc_object_t message
, xpc_object_t reply
)
626 OSStatus status
= errAuthorizationSuccess
;
627 auth_items_t items
= NULL
;
628 const char * tag
= NULL
;
630 process_t proc
= connection_get_process(conn
);
632 auth_token_t auth
= NULL
;
633 status
= _process_find_copy_auth_token_from_xpc(proc
, message
, &auth
);
634 require_noerr(status
, done
);
636 items
= auth_items_create();
638 tag
= xpc_dictionary_get_string(message
, AUTH_XPC_TAG
);
639 LOGV("server[%i]: requested tag: %s", connection_get_pid(conn
), tag
? tag
: "(all)");
642 const void * data
= auth_items_get_data_with_flags(auth_token_get_context(auth
), tag
, &len
, kAuthorizationContextFlagExtractable
);
644 auth_items_set_data(items
, tag
, data
, len
);
646 auth_items_copy_with_flags(items
, auth_token_get_context(auth
), kAuthorizationContextFlagExtractable
);
650 LOGV("server[%i]: Dumping requested AuthRef items", connection_get_pid(conn
));
655 xpc_object_t outItems
= auth_items_export_xpc(items
);
656 xpc_dictionary_set_value(reply
, AUTH_XPC_OUT_ITEMS
, outItems
);
657 xpc_release_safe(outItems
);
660 CFReleaseSafe(items
);
662 LOGV("server[%i]: AuthorizationCopyInfo %i", connection_get_pid(conn
), (int) status
);
667 // OUT: AUTH_XPC_EXTERNAL
669 authorization_make_external_form(connection_t conn
, xpc_object_t message
, xpc_object_t reply
)
671 OSStatus status
= errAuthorizationSuccess
;
673 process_t proc
= connection_get_process(conn
);
675 auth_token_t auth
= NULL
;
676 status
= _process_find_copy_auth_token_from_xpc(proc
, message
, &auth
);
677 require_noerr(status
, done
);
679 AuthorizationExternalForm exForm
;
680 AuthorizationExternalBlob
* exBlob
= (AuthorizationExternalBlob
*)&exForm
;
681 memset(&exForm
, 0, sizeof(exForm
));
683 exBlob
->blob
= *auth_token_get_blob(auth
);
684 exBlob
->session
= process_get_session_id(proc
);
686 xpc_dictionary_set_data(reply
, AUTH_XPC_EXTERNAL
, &exForm
, sizeof(exForm
));
687 server_register_auth_token(auth
);
691 LOGV("server[%i]: AuthorizationMakeExternalForm %d", connection_get_pid(conn
), (int)status
);
695 // IN: AUTH_XPC_EXTERNAL
696 // OUT: AUTH_XPC_BLOB
698 authorization_create_from_external_form(connection_t conn
, xpc_object_t message
, xpc_object_t reply
)
700 OSStatus status
= errAuthorizationSuccess
;
701 auth_token_t auth
= NULL
;
703 process_t proc
= connection_get_process(conn
);
706 AuthorizationExternalForm
* exForm
= (AuthorizationExternalForm
*)xpc_dictionary_get_data(message
, AUTH_XPC_EXTERNAL
, &len
);
707 require_action(exForm
!= NULL
, done
, status
= errAuthorizationInternal
);
708 require_action(len
== sizeof(AuthorizationExternalForm
), done
, status
= errAuthorizationInvalidRef
);
710 AuthorizationExternalBlob
* exBlob
= (AuthorizationExternalBlob
*)exForm
;
711 auth
= server_find_copy_auth_token(&exBlob
->blob
);
712 require_action(auth
!= NULL
, done
, status
= errAuthorizationDenied
);
714 process_add_auth_token(proc
, auth
);
715 xpc_dictionary_set_data(reply
, AUTH_XPC_BLOB
, auth_token_get_blob(auth
), sizeof(AuthorizationBlob
));
719 LOGV("server[%i]: AuthorizationCreateFromExternalForm %d", connection_get_pid(conn
), (int)status
);
723 // IN: AUTH_XPC_RIGHT_NAME
724 // OUT: AUTH_XPC_DATA
726 authorization_right_get(connection_t conn AUTH_UNUSED
, xpc_object_t message
, xpc_object_t reply
)
728 OSStatus status
= errAuthorizationDenied
;
730 CFTypeRef cfdict
= NULL
;
731 xpc_object_t xpcdict
= NULL
;
733 authdb_connection_t dbconn
= authdb_connection_acquire(server_get_database());
734 rule
= rule_create_with_string(xpc_dictionary_get_string(message
, AUTH_XPC_RIGHT_NAME
), dbconn
);
735 require(rule
!= NULL
, done
);
736 require(rule_get_id(rule
) != 0, done
);
738 cfdict
= rule_copy_to_cfobject(rule
, dbconn
);
739 require(cfdict
!= NULL
, done
);
741 xpcdict
= _CFXPCCreateXPCObjectFromCFObject(cfdict
);
742 require(xpcdict
!= NULL
, done
);
745 xpc_dictionary_set_value(reply
, AUTH_XPC_DATA
, xpcdict
);
747 status
= errAuthorizationSuccess
;
750 authdb_connection_release(&dbconn
);
751 CFReleaseSafe(cfdict
);
752 xpc_release_safe(xpcdict
);
754 LOGV("server[%i]: AuthorizationRightGet %d", connection_get_pid(conn
), (int)status
);
758 static bool _prompt_for_modifications(process_t __unused proc
, rule_t __unused rule
)
760 // <rdar://problem/13853228> will put back it back at some later date
761 // SecRequirementRef ruleReq = rule_get_requirement(rule);
763 // if (ruleReq && process_verify_requirment(proc, ruleReq)) {
770 static CFIndex
_get_mechanism_index(CFArrayRef mechanisms
, CFStringRef m_name
)
773 require(mechanisms
, done
);
775 CFIndex c
= CFArrayGetCount(mechanisms
);
776 CFStringRef i_name
= NULL
;
777 for (CFIndex i
= 0; i
< c
; ++i
)
779 i_name
= CFArrayGetValueAtIndex(mechanisms
, i
);
780 if (i_name
&& (CFGetTypeID(m_name
) == CFStringGetTypeID())) {
781 if (CFStringCompare(i_name
, m_name
, kCFCompareCaseInsensitive
) == kCFCompareEqualTo
) {
792 static bool _update_rule_mechanism(authdb_connection_t dbconn
, const char * rule_name
, CFStringRef mechanism_name
, CFStringRef insert_after_name
, bool remove
)
794 bool updated
= false;
796 rule_t update_rule
= NULL
;
797 CFMutableDictionaryRef cfdict
= NULL
;
798 CFStringRef update_name
= NULL
;
800 require(mechanism_name
, done
);
802 rule
= rule_create_with_string(rule_name
, dbconn
);
803 require(rule_get_id(rule
) != 0, done
); // rule doesn't exist in the database
805 cfdict
= rule_copy_to_cfobject(rule
, dbconn
);
806 require(cfdict
!= NULL
, done
);
808 CFMutableArrayRef mechanisms
= NULL
;
809 bool res
= CFDictionaryGetValueIfPresent(cfdict
, CFSTR(kAuthorizationRuleParameterMechanisms
), (void*)&mechanisms
);
810 require(res
== true, done
);
815 index
= _get_mechanism_index(mechanisms
, mechanism_name
);
817 if (insert_after_name
) {
818 if ((index
= _get_mechanism_index(mechanisms
, insert_after_name
)) != -1) {
821 index
= 0; // if we couldn't find the index add it to the begining
830 CFArrayRemoveValueAtIndex(mechanisms
, index
);
832 if (index
< CFArrayGetCount(mechanisms
)) {
833 require_action(CFStringCompare(CFArrayGetValueAtIndex(mechanisms
, index
), mechanism_name
, kCFCompareCaseInsensitive
) != kCFCompareEqualTo
, done
, updated
= true);
835 CFArrayInsertValueAtIndex(mechanisms
, index
, mechanism_name
);
838 CFDictionarySetValue(cfdict
, CFSTR(kAuthorizationRuleParameterMechanisms
), mechanisms
);
841 update_name
= CFStringCreateWithCString(kCFAllocatorDefault
, rule_name
, kCFStringEncodingUTF8
);
842 require(update_name
, done
);
843 update_rule
= rule_create_with_plist(rule_get_type(rule
), update_name
, cfdict
, dbconn
);
844 require(update_rule
, done
);
846 require(rule_sql_commit(update_rule
, dbconn
, CFAbsoluteTimeGetCurrent(), NULL
), done
);
853 CFReleaseSafe(update_rule
);
854 CFReleaseSafe(cfdict
);
855 CFReleaseSafe(update_name
);
859 /// IN: AUTH_XPC_BLOB, AUTH_XPC_INT64
862 authorization_enable_smartcard(connection_t conn
, xpc_object_t message
, xpc_object_t reply AUTH_UNUSED
)
864 const CFStringRef SMARTCARD_LINE
= CFSTR("builtin:smartcard-sniffer,privileged");
865 const CFStringRef BUILTIN_LINE
= CFSTR("builtin:policy-banner");
866 const char* SYSTEM_LOGIN_CONSOLE
= "system.login.console";
867 const char* AUTHENTICATE
= "authenticate";
869 __block OSStatus status
= errAuthorizationSuccess
;
870 bool enable_smartcard
= false;
871 authdb_connection_t dbconn
= NULL
;
872 auth_token_t auth
= NULL
;
873 auth_rights_t checkRight
= NULL
;
875 process_t proc
= connection_get_process(conn
);
877 status
= _process_find_copy_auth_token_from_xpc(proc
, message
, &auth
);
878 require_noerr(status
, done
);
880 checkRight
= auth_rights_create();
881 auth_rights_add(checkRight
, "config.modify.smartcard");
882 status
= _server_authorize(conn
, auth
, kAuthorizationFlagDefaults
| kAuthorizationFlagInteractionAllowed
| kAuthorizationFlagExtendRights
, checkRight
, NULL
, NULL
);
883 require_noerr(status
, done
);
885 enable_smartcard
= xpc_dictionary_get_bool(message
, AUTH_XPC_DATA
);
887 dbconn
= authdb_connection_acquire(server_get_database());
889 if (!_update_rule_mechanism(dbconn
, SYSTEM_LOGIN_CONSOLE
, SMARTCARD_LINE
, BUILTIN_LINE
, enable_smartcard
? false : true)) {
890 status
= errAuthorizationInternal
;
891 LOGE("server[%i]: smartcard: enable(%i) failed to update %s", connection_get_pid(conn
), enable_smartcard
, SYSTEM_LOGIN_CONSOLE
);
893 if (!_update_rule_mechanism(dbconn
, AUTHENTICATE
, SMARTCARD_LINE
, NULL
, enable_smartcard
? false : true)) {
894 status
= errAuthorizationInternal
;
895 LOGE("server[%i]: smartcard: enable(%i) failed to update %s", connection_get_pid(conn
), enable_smartcard
, AUTHENTICATE
);
898 authdb_checkpoint(dbconn
);
901 authdb_connection_release(&dbconn
);
902 CFReleaseSafe(checkRight
);
907 static int64_t _process_get_identifier_count(process_t proc
, authdb_connection_t conn
)
909 __block
int64_t result
= 0;
911 authdb_step(conn
, "SELECT COUNT(*) AS cnt FROM rules WHERE identifier = ? ", ^(sqlite3_stmt
*stmt
) {
912 sqlite3_bind_text(stmt
, 1, process_get_identifier(proc
), -1, NULL
);
913 }, ^bool(auth_items_t data
) {
914 result
= auth_items_get_int64(data
, "cnt");
921 static int64_t _get_max_process_rights()
923 static dispatch_once_t onceToken
;
924 static int64_t max_rights
= MAX_PROCESS_RIGHTS
;
926 //sudo defaults write /Library/Preferences/com.apple.authd max_process_rights -bool true
927 dispatch_once(&onceToken
, ^{
928 CFTypeRef max
= (CFNumberRef
)CFPreferencesCopyValue(CFSTR("max_process_rights"), CFSTR(SECURITY_AUTH_NAME
), kCFPreferencesAnyUser
, kCFPreferencesCurrentHost
);
930 if (max
&& CFGetTypeID(max
) == CFNumberGetTypeID()) {
931 CFNumberGetValue(max
, kCFNumberSInt64Type
, &max_rights
);
939 // IN: AUTH_XPC_BLOB, AUTH_XPC_RIGHT_NAME, AUTH_XPC_DATA
942 authorization_right_set(connection_t conn
, xpc_object_t message
, xpc_object_t reply AUTH_UNUSED
)
944 __block OSStatus status
= errAuthorizationDenied
;
945 __block engine_t engine
= NULL
;
946 CFStringRef cf_rule_name
= NULL
;
947 CFDictionaryRef cf_rule_dict
= NULL
;
949 rule_t existingRule
= NULL
;
950 authdb_connection_t dbconn
= NULL
;
951 auth_token_t auth
= NULL
;
952 bool force_modify
= false;
953 RuleType rule_type
= RT_RIGHT
;
954 const char * rule_name
= NULL
;
955 bool auth_rule
= false;
957 process_t proc
= connection_get_process(conn
);
959 status
= _process_find_copy_auth_token_from_xpc(proc
, message
, &auth
);
960 require_noerr(status
, done
);
962 require_action(xpc_dictionary_get_string(message
, AUTH_XPC_RIGHT_NAME
) != NULL
, done
, status
= errAuthorizationInternal
);
963 require_action(xpc_dictionary_get_value(message
, AUTH_XPC_DATA
) != NULL
, done
, status
= errAuthorizationInternal
);
965 rule_name
= xpc_dictionary_get_string(message
, AUTH_XPC_RIGHT_NAME
);
966 require(rule_name
!= NULL
, done
);
968 if (_compare_string(rule_name
, "authenticate")) {
973 cf_rule_name
= CFStringCreateWithCString(kCFAllocatorDefault
, rule_name
, kCFStringEncodingUTF8
);
974 require(cf_rule_name
!= NULL
, done
);
976 cf_rule_dict
= _CFXPCCreateCFObjectFromXPCObject(xpc_dictionary_get_value(message
, AUTH_XPC_DATA
));
977 require(cf_rule_dict
!= NULL
, done
);
979 dbconn
= authdb_connection_acquire(server_get_database());
981 rule
= rule_create_with_plist(rule_type
, cf_rule_name
, cf_rule_dict
, dbconn
);
982 if (process_get_uid(proc
) != 0) {
983 require_action(rule_get_extract_password(rule
) == false, done
, status
= errAuthorizationDenied
; LOGE("server[%i]: AuthorizationRightSet not allowed to set extract-password. (denied)", connection_get_pid(conn
)));
986 // if rule doesn't currently exist then we have to check to see if they are over the Max.
987 if (rule_get_id(rule
) == 0) {
988 if (process_get_identifier(proc
) == NULL
) {
989 LOGE("server[%i]: AuthorizationRightSet required for process %s (missing code signature). To add rights to the Authorization database, your process must have a code signature.", connection_get_pid(conn
), process_get_code_url(proc
));
992 int64_t process_rule_count
= _process_get_identifier_count(proc
, dbconn
);
993 if ((process_rule_count
>= _get_max_process_rights())) {
994 if (!connection_get_syslog_warn(conn
)) {
995 LOGE("server[%i]: AuthorizationRightSet Denied API abuse process %s already contains %lli rights.", connection_get_pid(conn
), process_get_code_url(proc
), _get_max_process_rights());
996 connection_set_syslog_warn(conn
);
998 status
= errAuthorizationDenied
;
1004 if (process_get_uid(proc
) != 0) {
1005 LOGE("server[%i]: AuthorizationRightSet denied, root required to update the 'authenticate' rule", connection_get_pid(conn
));
1006 status
= errAuthorizationDenied
;
1010 // verify they are updating a right and not a rule
1011 existingRule
= rule_create_with_string(rule_get_name(rule
), dbconn
);
1012 if (rule_get_type(existingRule
) == RT_RULE
) {
1013 LOGE("server[%i]: AuthorizationRightSet Denied updating '%s' rule is prohibited", connection_get_pid(conn
), rule_get_name(existingRule
));
1014 status
= errAuthorizationDenied
;
1020 if (_prompt_for_modifications(proc
,rule
)) {
1021 authdb_connection_release(&dbconn
);
1023 dispatch_sync(connection_get_dispatch_queue(conn
), ^{
1024 engine
= engine_create(conn
, auth
);
1025 connection_set_engine(conn
, engine
);
1026 status
= engine_verify_modification(engine
, rule
, false, force_modify
);
1027 connection_set_engine(conn
, NULL
);
1029 require_noerr(status
, done
);
1031 dbconn
= authdb_connection_acquire(server_get_database());
1034 if (rule_sql_commit(rule
, dbconn
, engine
? engine_get_time(engine
) : CFAbsoluteTimeGetCurrent(), proc
)) {
1035 LOGV("server[%i]: Successfully updated rule %s", connection_get_pid(conn
), rule_get_name(rule
));
1036 authdb_checkpoint(dbconn
);
1037 status
= errAuthorizationSuccess
;
1039 LOGE("server[%i]: Failed to update rule %s", connection_get_pid(conn
), rule_get_name(rule
));
1040 status
= errAuthorizationDenied
;
1044 authdb_connection_release(&dbconn
);
1045 CFReleaseSafe(existingRule
);
1046 CFReleaseSafe(cf_rule_name
);
1047 CFReleaseSafe(cf_rule_dict
);
1048 CFReleaseSafe(auth
);
1049 CFReleaseSafe(rule
);
1050 CFReleaseSafe(engine
);
1054 // IN: AUTH_XPC_BLOB, AUTH_XPC_RIGHT_NAME
1057 authorization_right_remove(connection_t conn
, xpc_object_t message
, xpc_object_t reply AUTH_UNUSED
)
1059 __block OSStatus status
= errAuthorizationDenied
;
1060 __block engine_t engine
= NULL
;
1062 authdb_connection_t dbconn
= NULL
;
1064 process_t proc
= connection_get_process(conn
);
1066 auth_token_t auth
= NULL
;
1067 status
= _process_find_copy_auth_token_from_xpc(proc
, message
, &auth
);
1068 require_noerr(status
, done
);
1070 dbconn
= authdb_connection_acquire(server_get_database());
1072 rule
= rule_create_with_string(xpc_dictionary_get_string(message
, AUTH_XPC_RIGHT_NAME
), dbconn
);
1073 require(rule
!= NULL
, done
);
1075 if (_prompt_for_modifications(proc
,rule
)) {
1076 authdb_connection_release(&dbconn
);
1078 dispatch_sync(connection_get_dispatch_queue(conn
), ^{
1079 engine
= engine_create(conn
, auth
);
1080 connection_set_engine(conn
, engine
);
1081 status
= engine_verify_modification(engine
, rule
, true, false);
1082 connection_set_engine(conn
, NULL
);
1084 require_noerr(status
, done
);
1086 dbconn
= authdb_connection_acquire(server_get_database());
1089 if (rule_get_id(rule
) != 0) {
1090 rule_sql_remove(rule
, dbconn
);
1094 authdb_connection_release(&dbconn
);
1095 CFReleaseSafe(auth
);
1096 CFReleaseSafe(rule
);
1097 CFReleaseSafe(engine
);
1098 LOGV("server[%i]: AuthorizationRightRemove %d", connection_get_pid(conn
), (int)status
);
1103 #pragma mark test code
1106 session_set_user_preferences(connection_t conn
, xpc_object_t message
, xpc_object_t reply
)
1111 return errAuthorizationSuccess
;
1116 // rule_t rule = rule_create_with_string("system.preferences.accounts");
1117 // CFDictionaryRef dict = rule_copy_to_cfobject(rule);
1119 // CFReleaseSafe(rule);
1120 // CFReleaseSafe(dict);
1122 // auth_items_t config = NULL;
1123 // double d2 = 0, d1 = 5;
1124 // authdb_get_key_value(server_get_authdb_reader(), "config", &config);
1125 // auth_items_set_double(config, "test", d1);
1126 // d2 = auth_items_get_double(config, "test");
1127 // LOGV("d1=%f d2=%f", d1, d2);
1128 // CFReleaseSafe(config);
1131 // auth_items_t items = auth_items_create();
1132 // auth_items_set_string(items, "test", "testing 1");
1133 // auth_items_set_string(items, "test2", "testing 2");
1134 // auth_items_set_string(items, "test3", "testing 3");
1135 // auth_items_set_flags(items, "test3", 4);
1136 // auth_items_set_string(items, "apple", "apple");
1137 // auth_items_set_flags(items, "apple", 1);
1138 // auth_items_set_int(items, "int", 45);
1139 // auth_items_set_flags(items, "int", 2);
1140 // auth_items_set_bool(items, "true", true);
1141 // auth_items_set_bool(items, "false", false);
1142 // auth_items_set(items, "com.apple.");
1143 // auth_show(items);
1144 // LOGD("Yeah it works: %s", auth_items_get_string(items, "test3"));
1145 // LOGD("Yeah it works: %i", auth_items_get_bool(items, "true"));
1146 // LOGD("Yeah it works: %i", auth_items_get_bool(items, "false"));
1147 // LOGD("Yeah it works: %i", auth_items_get_int(items, "int"));
1148 // (void)auth_items_get_bool(items, "test3");
1149 // AuthorizationItemSet * itemSet = auth_items_get_item_set(items);
1150 // for (uint32_t i = 0; i < itemSet->count; i++) {
1151 // LOGD("item: %s", itemSet->items[i].name);
1154 // xpc_object_t xpcdata = SerializeItemSet(auth_items_get_item_set(items));
1155 // auth_items_t items2 = auth_items_create_with_xpc(xpcdata);
1156 // xpc_release(xpcdata);
1157 // auth_items_remove_with_flags(items2, 7);
1158 //// auth_items_set_string(items2, "test3", "testing 3 very good");
1159 // auth_items_copy_with_flags(items2, items, 7);
1160 // LOGD("Yeah it works: %s", auth_items_get_string(items2, "test3"));
1161 // auth_show(items2);
1162 // CFReleaseSafe(items2);
1164 // CFReleaseSafe(items);