/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2010 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
+/*
+ * NOTICE: This file was modified by McAfee Research in 2004 to introduce
+ * support for mandatory and extensible security protections. This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.
+ * Copyright (c) 2005 SPARTA, Inc.
+ */
/*
*/
/*
#include <mach_debug.h>
#include <mach_ipc_test.h>
-#include <mach_machine_routines.h>
-#include <norma_task.h>
#include <mach_rt.h>
-#include <platforms.h>
#include <mach/mig.h>
#include <mach/port.h>
#include <mach/message.h>
#include <mach/mig_errors.h>
#include <mach/notify.h>
+#include <mach/ndr.h>
+#include <mach/vm_param.h>
+
+#include <mach/mach_vm_server.h>
+#include <mach/mach_port_server.h>
+#include <mach/mach_host_server.h>
+#include <mach/host_priv_server.h>
+#include <mach/host_security_server.h>
+#include <mach/clock_server.h>
+#include <mach/clock_priv_server.h>
+#include <mach/lock_set_server.h>
+#include <default_pager/default_pager_object_server.h>
+#include <mach/memory_object_server.h>
+#include <mach/memory_object_control_server.h>
+#include <mach/memory_object_default_server.h>
+#include <mach/processor_server.h>
+#include <mach/processor_set_server.h>
+#include <mach/task_server.h>
+#include <mach/mach_voucher_server.h>
+#include <mach/mach_voucher_attr_control_server.h>
+#if VM32_SUPPORT
+#include <mach/vm32_map_server.h>
+#endif
+#include <mach/thread_act_server.h>
+
+#include <device/device_types.h>
+#include <device/device_server.h>
+
+#include <UserNotification/UNDReplyServer.h>
+
+#if CONFIG_AUDIT
+#include <kern/audit_sessionport.h>
+#endif
+
+#if MACH_MACHINE_ROUTINES
+#include <machine/machine_routines.h>
+#endif /* MACH_MACHINE_ROUTINES */
+#if XK_PROXY
+#include <uk_xkern/xk_uproxy_server.h>
+#endif /* XK_PROXY */
-#include <kern/etap_macros.h>
+#include <kern/ipc_tt.h>
#include <kern/ipc_mig.h>
+#include <kern/ipc_misc.h>
#include <kern/ipc_kobject.h>
#include <kern/host_notify.h>
#include <kern/mk_timer.h>
#include <kern/misc_protos.h>
#include <ipc/ipc_kmsg.h>
#include <ipc/ipc_port.h>
+#include <ipc/ipc_voucher.h>
+#include <kern/sync_sema.h>
#include <kern/counters.h>
+#include <vm/vm_protos.h>
+
+#include <security/mac_mach_internal.h>
+
+extern char *proc_name_address(void *p);
+extern int proc_pid(void *p);
/*
* Routine: ipc_kobject_notify
mach_msg_header_t *request_header,
mach_msg_header_t *reply_header);
-#include <mach/ndr.h>
-
typedef struct {
mach_msg_id_t num;
mig_routine_t routine;
#endif
} mig_hash_t;
-#define MAX_MIG_ENTRIES 1024
+#define MAX_MIG_ENTRIES 1031
#define MIG_HASH(x) (x)
#ifndef max
#define max(a,b) (((a) > (b)) ? (a) : (b))
#endif /* max */
-mig_hash_t mig_buckets[MAX_MIG_ENTRIES];
-int mig_table_max_displ;
-mach_msg_size_t mig_reply_size;
-
-
-#include <mach/mach_port_server.h>
-#include <mach/mach_host_server.h>
-#include <mach/host_priv_server.h>
-#include <mach/host_security_server.h>
-#include <mach/clock_server.h>
-#include <mach/clock_priv_server.h>
-#include <mach/ledger_server.h>
-#include <mach/lock_set_server.h>
-#include <default_pager/default_pager_object_server.h>
-#include <mach/memory_object_server.h>
-#include <mach/memory_object_control_server.h>
-#include <mach/memory_object_default_server.h>
-#include <mach/memory_object_name_server.h>
-#include <mach/processor_server.h>
-#include <mach/processor_set_server.h>
-#include <mach/semaphore_server.h>
-#include <mach/task_server.h>
-#include <mach/vm_map_server.h>
-#include <mach/thread_act_server.h>
-#include <device/device_server.h>
-#include <UserNotification/UNDReplyServer.h>
-
-#if MACH_MACHINE_ROUTINES
-#include <machine/machine_routines.h>
-#endif /* MACH_MACHINE_ROUTINES */
-#if XK_PROXY
-#include <uk_xkern/xk_uproxy_server.h>
-#endif /* XK_PROXY */
-
-
-mig_subsystem_t mig_e[] = {
- (mig_subsystem_t)&mach_port_subsystem,
- (mig_subsystem_t)&mach_host_subsystem,
- (mig_subsystem_t)&host_priv_subsystem,
- (mig_subsystem_t)&host_security_subsystem,
- (mig_subsystem_t)&clock_subsystem,
- (mig_subsystem_t)&clock_priv_subsystem,
- (mig_subsystem_t)&processor_subsystem,
- (mig_subsystem_t)&processor_set_subsystem,
- (mig_subsystem_t)&is_iokit_subsystem,
- (mig_subsystem_t)&memory_object_name_subsystem,
- (mig_subsystem_t)&lock_set_subsystem,
- (mig_subsystem_t)&ledger_subsystem,
- (mig_subsystem_t)&semaphore_subsystem,
- (mig_subsystem_t)&task_subsystem,
- (mig_subsystem_t)&thread_act_subsystem,
- (mig_subsystem_t)&vm_map_subsystem,
- (mig_subsystem_t)&UNDReply_subsystem,
+static mig_hash_t mig_buckets[MAX_MIG_ENTRIES];
+static int mig_table_max_displ;
+static mach_msg_size_t mig_reply_size = sizeof(mig_reply_error_t);
+
+
+
+const struct mig_subsystem *mig_e[] = {
+ (const struct mig_subsystem *)&mach_vm_subsystem,
+ (const struct mig_subsystem *)&mach_port_subsystem,
+ (const struct mig_subsystem *)&mach_host_subsystem,
+ (const struct mig_subsystem *)&host_priv_subsystem,
+ (const struct mig_subsystem *)&host_security_subsystem,
+ (const struct mig_subsystem *)&clock_subsystem,
+ (const struct mig_subsystem *)&clock_priv_subsystem,
+ (const struct mig_subsystem *)&processor_subsystem,
+ (const struct mig_subsystem *)&processor_set_subsystem,
+ (const struct mig_subsystem *)&is_iokit_subsystem,
+ (const struct mig_subsystem *)&lock_set_subsystem,
+ (const struct mig_subsystem *)&task_subsystem,
+ (const struct mig_subsystem *)&thread_act_subsystem,
+#if VM32_SUPPORT
+ (const struct mig_subsystem *)&vm32_map_subsystem,
+#endif
+ (const struct mig_subsystem *)&UNDReply_subsystem,
+ (const struct mig_subsystem *)&default_pager_object_subsystem,
+ (const struct mig_subsystem *)&mach_voucher_subsystem,
+ (const struct mig_subsystem *)&mach_voucher_attr_control_subsystem,
#if XK_PROXY
- (mig_subsystem_t)&do_uproxy_xk_uproxy_subsystem,
+ (const struct mig_subsystem *)&do_uproxy_xk_uproxy_subsystem,
#endif /* XK_PROXY */
#if MACH_MACHINE_ROUTINES
- (mig_subsystem_t)&MACHINE_SUBSYSTEM,
+ (const struct mig_subsystem *)&MACHINE_SUBSYSTEM,
#endif /* MACH_MACHINE_ROUTINES */
#if MCMSG && iPSC860
- (mig_subsystem_t)&mcmsg_info_subsystem,
+ (const struct mig_subsystem *)&mcmsg_info_subsystem,
#endif /* MCMSG && iPSC860 */
};
void
mig_init(void)
{
- register unsigned int i, n = sizeof(mig_e)/sizeof(mig_subsystem_t);
- register unsigned int howmany;
- register mach_msg_id_t j, pos, nentry, range;
+ unsigned int i, n = sizeof(mig_e)/sizeof(const struct mig_subsystem *);
+ int howmany;
+ mach_msg_id_t j, pos, nentry, range;
for (i = 0; i < n; i++) {
range = mig_e[i]->end - mig_e[i]->start;
if (!mig_e[i]->start || range < 0)
panic("the msgh_ids in mig_e[] aren't valid!");
- mig_reply_size = max(mig_reply_size, mig_e[i]->maxsize);
for (j = 0; j < range; j++) {
if (mig_e[i]->routine[j].stub_routine) {
nentry = j + mig_e[i]->start;
for (pos = MIG_HASH(nentry) % MAX_MIG_ENTRIES, howmany = 1;
mig_buckets[pos].num;
- pos = ++pos % MAX_MIG_ENTRIES, howmany++) {
+ pos++, pos = pos % MAX_MIG_ENTRIES, howmany++) {
if (mig_buckets[pos].num == nentry) {
printf("message id = %d\n", nentry);
panic("multiple entries with the same msgh_id");
mach_msg_size_t reply_size;
ipc_kmsg_t reply;
kern_return_t kr;
- mig_routine_t routine;
ipc_port_t *destp;
mach_msg_format_0_trailer_t *trailer;
register mig_hash_t *ptr;
- unsigned int th;
-
- /* Only fetch current thread if ETAP is configured */
- ETAP_DATA_LOAD(th, current_thread());
- ETAP_PROBE_DATA(ETAP_P_SYSCALL_MACH,
- EVENT_BEGIN,
- ((thread_t) th),
- &request->ikm_header.msgh_id,
- sizeof(int));
+
/*
- * Find out corresponding mig_hash entry if any
- */
+ * Find out corresponding mig_hash entry if any
+ */
{
- register int key = request->ikm_header.msgh_id;
+ register int key = request->ikm_header->msgh_id;
register int i = MIG_HASH(key);
register int max_iter = mig_table_max_displ;
* Initialize reply message.
*/
{
-#define InP ((mach_msg_header_t *) &request->ikm_header)
-#define OutP ((mig_reply_error_t *) &reply->ikm_header)
+#define InP ((mach_msg_header_t *) request->ikm_header)
+#define OutP ((mig_reply_error_t *) reply->ikm_header)
+
+ /*
+ * MIG should really assure no data leakage -
+ * but until it does, pessimistically zero the
+ * whole reply buffer.
+ */
+ bzero((void *)OutP, reply_size);
OutP->NDR = NDR_record;
OutP->Head.msgh_size = sizeof(mig_reply_error_t);
OutP->Head.msgh_bits =
- MACH_MSGH_BITS(MACH_MSGH_BITS_LOCAL(InP->msgh_bits), 0);
+ MACH_MSGH_BITS_SET(MACH_MSGH_BITS_LOCAL(InP->msgh_bits), 0, 0, 0);
OutP->Head.msgh_remote_port = InP->msgh_local_port;
- OutP->Head.msgh_local_port = MACH_PORT_NULL;
+ OutP->Head.msgh_local_port = MACH_PORT_NULL;
+ OutP->Head.msgh_voucher_port = MACH_PORT_NULL;
OutP->Head.msgh_id = InP->msgh_id + 100;
#undef InP
*/
{
if (ptr) {
- (*ptr->routine)(&request->ikm_header, &reply->ikm_header);
+ (*ptr->routine)(request->ikm_header, reply->ikm_header);
kernel_task->messages_received++;
}
else {
- if (!ipc_kobject_notify(&request->ikm_header, &reply->ikm_header)){
+ if (!ipc_kobject_notify(request->ikm_header, reply->ikm_header)){
#if MACH_IPC_TEST
printf("ipc_kobject_server: bogus kernel message, id=%d\n",
- request->ikm_header.msgh_id);
+ request->ikm_header->msgh_id);
#endif /* MACH_IPC_TEST */
- _MIG_MSGID_INVALID(request->ikm_header.msgh_id);
+ _MIG_MSGID_INVALID(request->ikm_header->msgh_id);
- ((mig_reply_error_t *) &reply->ikm_header)->RetCode
+ ((mig_reply_error_t *) reply->ikm_header)->RetCode
= MIG_BAD_ID;
}
else
* We set msgh_remote_port to IP_NULL so that the kmsg
* destroy routines don't try to destroy the port twice.
*/
- destp = (ipc_port_t *) &request->ikm_header.msgh_remote_port;
- switch (MACH_MSGH_BITS_REMOTE(request->ikm_header.msgh_bits)) {
+ destp = (ipc_port_t *) &request->ikm_header->msgh_remote_port;
+ switch (MACH_MSGH_BITS_REMOTE(request->ikm_header->msgh_bits)) {
case MACH_MSG_TYPE_PORT_SEND:
ipc_port_release_send(*destp);
break;
}
*destp = IP_NULL;
- if (!(reply->ikm_header.msgh_bits & MACH_MSGH_BITS_COMPLEX) &&
- ((mig_reply_error_t *) &reply->ikm_header)->RetCode != KERN_SUCCESS)
- kr = ((mig_reply_error_t *) &reply->ikm_header)->RetCode;
+ /*
+ * Destroy voucher. The kernel MIG servers never take ownership
+ * of vouchers sent in messages. Swallow any such rights here.
+ */
+ if (IP_VALID(request->ikm_voucher)) {
+ assert(MACH_MSG_TYPE_PORT_SEND ==
+ MACH_MSGH_BITS_VOUCHER(request->ikm_header->msgh_bits));
+ ipc_port_release_send(request->ikm_voucher);
+ request->ikm_voucher = IP_NULL;
+ }
+
+ if (!(reply->ikm_header->msgh_bits & MACH_MSGH_BITS_COMPLEX) &&
+ ((mig_reply_error_t *) reply->ikm_header)->RetCode != KERN_SUCCESS)
+ kr = ((mig_reply_error_t *) reply->ikm_header)->RetCode;
else
kr = KERN_SUCCESS;
* Destroy everthing except the reply port right,
* which is needed in the reply message.
*/
- request->ikm_header.msgh_local_port = MACH_PORT_NULL;
+ request->ikm_header->msgh_local_port = MACH_PORT_NULL;
ipc_kmsg_destroy(request);
}
ipc_kmsg_free(reply);
- ETAP_PROBE_DATA(ETAP_P_SYSCALL_MACH,
- EVENT_END,
- ((thread_t) th),
- &request->ikm_header.msgh_id,
- sizeof(int));
-
return IKM_NULL;
- } else if (!IP_VALID((ipc_port_t)reply->ikm_header.msgh_remote_port)) {
+ } else if (!IP_VALID((ipc_port_t)reply->ikm_header->msgh_remote_port)) {
/*
* Can't queue the reply message if the destination
* (the reply port) isn't valid.
ipc_kmsg_destroy(reply);
- ETAP_PROBE_DATA(ETAP_P_SYSCALL_MACH,
- EVENT_END,
- ((thread_t) th),
- &request->ikm_header.msgh_id,
- sizeof(int));
-
return IKM_NULL;
}
trailer = (mach_msg_format_0_trailer_t *)
- ((vm_offset_t)&reply->ikm_header + (int)reply->ikm_header.msgh_size);
+ ((vm_offset_t)reply->ikm_header + (int)reply->ikm_header->msgh_size);
+
trailer->msgh_sender = KERNEL_SECURITY_TOKEN;
trailer->msgh_trailer_type = MACH_MSG_TRAILER_FORMAT_0;
trailer->msgh_trailer_size = MACH_MSG_TRAILER_MINIMUM_SIZE;
- ETAP_PROBE_DATA(ETAP_P_SYSCALL_MACH,
- EVENT_END,
- ((thread_t) th),
- &request->ikm_header.msgh_id,
- sizeof(int));
-
return reply;
}
}
-extern int vnode_pager_workaround;
-
boolean_t
ipc_kobject_notify(
mach_msg_header_t *request_header,
mach_msg_header_t *reply_header)
{
ipc_port_t port = (ipc_port_t) request_header->msgh_remote_port;
- mig_subsystem_t paging_subsystem_object;
- mach_port_seqno_t seqno;
((mig_reply_error_t *) reply_header)->RetCode = MIG_NO_REPLY;
switch (request_header->msgh_id) {
case MACH_NOTIFY_NO_SENDERS:
- if(ip_kotype(port) == IKOT_NAMED_ENTRY) {
- ip_lock(port);
-
- /*
- * Bring the sequence number and mscount in
- * line with ipc_port_destroy assertion.
- */
- port->ip_mscount = 0;
- port->ip_messages.imq_seqno = 0;
- ipc_port_destroy(port); /* releases lock */
- return TRUE;
- }
- if (ip_kotype(port) == IKOT_UPL) {
- upl_no_senders(
- (ipc_port_t)request_header->msgh_remote_port,
- (mach_port_mscount_t)
- ((mach_no_senders_notification_t *)
- request_header)->not_count);
- (ipc_port_t)reply_header->msgh_remote_port
- = MACH_PORT_NULL;
- return TRUE;
- }
+ switch (ip_kotype(port)) {
+ case IKOT_VOUCHER:
+ ipc_voucher_notify(request_header);
+ return TRUE;
+
+ case IKOT_VOUCHER_ATTR_CONTROL:
+ ipc_voucher_attr_control_notify(request_header);
+ return TRUE;
+
+ case IKOT_SEMAPHORE:
+ semaphore_notify(request_header);
+ return TRUE;
+ case IKOT_NAMED_ENTRY:
+ ip_lock(port);
+
+ /*
+ * Bring the sequence number and mscount in
+ * line with ipc_port_destroy assertion.
+ */
+ port->ip_mscount = 0;
+ port->ip_messages.imq_seqno = 0;
+ ipc_port_destroy(port); /* releases lock */
+ return TRUE;
+
+ case IKOT_UPL:
+ upl_no_senders(
+ request_header->msgh_remote_port,
+ (mach_port_mscount_t)
+ ((mach_no_senders_notification_t *)
+ request_header)->not_count);
+ reply_header->msgh_remote_port = MACH_PORT_NULL;
+ return TRUE;
+
+#if CONFIG_AUDIT
+ case IKOT_AU_SESSIONPORT:
+ audit_session_nosenders(request_header);
+ return TRUE;
+#endif
+ case IKOT_FILEPORT:
+ fileport_notify(request_header);
+ return TRUE;
+ }
break;
case MACH_NOTIFY_PORT_DELETED:
case IKOT_IOKIT_CONNECT:
case IKOT_IOKIT_SPARE:
{
- extern boolean_t iokit_notify( mach_msg_header_t *msg);
-
return iokit_notify(request_header);
}
#endif
+ case IKOT_TASK_RESUME:
+ {
+ return task_suspension_notify(request_header);
+ }
+
default:
return FALSE;
}
}
-
-
-
-#include <mach_kdb.h>
-#if MACH_COUNTERS && MACH_KDB
-
-#include <ddb/db_output.h>
-#include <ddb/db_sym.h>
-
-#define printf kdbprintf
-
-extern void kobjserver_stats(void);
-extern void bucket_stats_print(mig_hash_t *bucket);
-
-extern void kobjserver_stats_clear(void);
-
-
-void
-kobjserver_stats_clear(void)
-{
- int i;
- for (i = 0; i < MAX_MIG_ENTRIES; i++) {
- mig_buckets[i].callcount = 0;
- }
-}
-
-void
-kobjserver_stats(void)
-{
- register unsigned int i, n = sizeof(mig_e)/sizeof(mig_subsystem_t);
- register unsigned int howmany;
- register mach_msg_id_t j, pos, nentry, range;
-
- db_printf("Kobject server call counts:\n");
- for (i = 0; i < n; i++) {
- db_printf(" ");
- db_printsym((vm_offset_t)mig_e[i], DB_STGY_ANY);
- db_printf(":\n");
- range = mig_e[i]->end - mig_e[i]->start;
- if (!mig_e[i]->start || range < 0) continue;
-
- for (j = 0; j < range; j++) {
- nentry = j + mig_e[i]->start;
- for (pos = MIG_HASH(nentry) % MAX_MIG_ENTRIES, howmany = 1;
- mig_buckets[pos].num;
- pos = ++pos % MAX_MIG_ENTRIES, howmany++) {
- if (mig_buckets[pos].num == nentry)
- bucket_stats_print(&mig_buckets[pos]);
- }
- }
- }
-}
-
-void
-bucket_stats_print(mig_hash_t *bucket)
-{
- if (bucket->callcount) {
- db_printf(" ");
- db_printsym((vm_offset_t)bucket->routine, DB_STGY_ANY);
- db_printf(" (%d):\t%d\n", bucket->num, bucket->callcount);
- }
-}
-
-
-#endif /* MACH_COUNTERS && MACH_KDB */
projects / apple / xnu.git / blobdiff