* Copyright (c) 2011 Apple 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
* 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
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <mach/mach_traps.h>
#include <mach/mach_vm_server.h>
#include <mach/mach_port_server.h>
+#include <mach/mach_host_server.h>
+#include <mach/mach_voucher_server.h>
#include <mach/vm_map.h>
#include <kern/task.h>
#include <kern/ipc_tt.h>
+#include <kern/kalloc.h>
#include <vm/vm_protos.h>
int
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
- if (copyin(args->addr, (char *)&addr, sizeof (addr)))
+ if (copyin(args->addr, (char *)&addr, sizeof(addr))) {
goto done;
+ }
+
+ rv = mach_vm_allocate_external(task->map, &addr, args->size, args->flags);
+ if (rv == KERN_SUCCESS) {
+ rv = copyout(&addr, args->addr, sizeof(addr));
+ }
- rv = mach_vm_allocate(task->map, &addr, args->size, args->flags);
- if (rv == KERN_SUCCESS)
- rv = copyout(&addr, args->addr, sizeof (addr));
-
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_vm_deallocate(task->map, args->address, args->size);
-
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_vm_protect(task->map, args->address, args->size,
args->set_maximum, args->new_protection);
-
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
+ goto done;
+ }
+
+ if (copyin(args->addr, (char *)&addr, sizeof(addr))) {
+ goto done;
+ }
+
+ rv = mach_vm_map_external(task->map, &addr, args->size, args->mask, args->flags,
+ IPC_PORT_NULL, 0, FALSE, args->cur_protection, VM_PROT_ALL,
+ VM_INHERIT_DEFAULT);
+ if (rv == KERN_SUCCESS) {
+ rv = copyout(&addr, args->addr, sizeof(addr));
+ }
+
+done:
+ if (task) {
+ task_deallocate(task);
+ }
+ return rv;
+}
+
+int
+_kernelrpc_mach_vm_purgable_control_trap(
+ struct _kernelrpc_mach_vm_purgable_control_trap_args *args)
+{
+ int state;
+ task_t task = port_name_to_task(args->target);
+ int rv = MACH_SEND_INVALID_DEST;
+
+ if (task != current_task()) {
goto done;
+ }
- if (copyin(args->addr, (char *)&addr, sizeof (addr)))
+ if (copyin(args->state, (char *)&state, sizeof(state))) {
goto done;
+ }
- rv = mach_vm_map(task->map, &addr, args->size, args->mask, args->flags,
- IPC_PORT_NULL, 0, FALSE, args->cur_protection, VM_PROT_ALL,
- VM_INHERIT_DEFAULT);
- if (rv == KERN_SUCCESS)
- rv = copyout(&addr, args->addr, sizeof (addr));
+ rv = mach_vm_purgable_control(task->map,
+ args->address,
+ args->control,
+ &state);
+ if (rv == KERN_SUCCESS) {
+ rv = copyout(&state, args->state, sizeof(state));
+ }
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
mach_port_name_t name;
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_port_allocate(task->itk_space, args->right, &name);
- if (rv == KERN_SUCCESS)
- rv = copyout(&name, args->name, sizeof (name));
+ if (rv == KERN_SUCCESS) {
+ rv = copyout(&name, args->name, sizeof(name));
+ }
+
-
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_port_destroy(task->itk_space, args->name);
-
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_port_deallocate(task->itk_space, args->name);
-
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_port_mod_refs(task->itk_space, args->name, args->right, args->delta);
-
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_port_move_member(task->itk_space, args->member, args->after);
-
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
mach_msg_type_name_t disp;
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
+
+ if (args->name == args->poly) {
+ switch (args->polyPoly) {
+ case MACH_MSG_TYPE_MAKE_SEND:
+ case MACH_MSG_TYPE_COPY_SEND:
+ /* fastpath MAKE_SEND / COPY_SEND which is the most common case */
+ rv = ipc_object_insert_send_right(task->itk_space, args->poly,
+ args->polyPoly);
+ goto done;
+
+ default:
+ break;
+ }
+ }
rv = ipc_object_copyin(task->itk_space, args->poly, args->polyPoly,
- (ipc_object_t *)&port);
- if (rv != KERN_SUCCESS)
+ (ipc_object_t *)&port, 0, NULL, IPC_KMSG_FLAGS_ALLOW_IMMOVABLE_SEND);
+ if (rv != KERN_SUCCESS) {
goto done;
+ }
disp = ipc_object_copyin_type(args->polyPoly);
rv = mach_port_insert_right(task->itk_space, args->name, port, disp);
-
+ if (rv != KERN_SUCCESS && IP_VALID(port)) {
+ ipc_object_destroy(ip_to_object(port), disp);
+ }
+
+done:
+ if (task) {
+ task_deallocate(task);
+ }
+ return rv;
+}
+
+int
+_kernelrpc_mach_port_get_attributes_trap(struct _kernelrpc_mach_port_get_attributes_args *args)
+{
+ task_inspect_t task = port_name_to_task_inspect(args->target);
+ int rv = MACH_SEND_INVALID_DEST;
+ mach_msg_type_number_t count;
+
+ if (task != current_task()) {
+ goto done;
+ }
+
+ // MIG does not define the type or size of the mach_port_info_t out array
+ // anywhere, so derive them from the field in the generated reply struct
+#define MACH_PORT_INFO_OUT (((__Reply__mach_port_get_attributes_t*)NULL)->port_info_out)
+#define MACH_PORT_INFO_STACK_LIMIT 80 // current size is 68 == 17 * sizeof(integer_t)
+ _Static_assert(sizeof(MACH_PORT_INFO_OUT) < MACH_PORT_INFO_STACK_LIMIT,
+ "mach_port_info_t has grown significantly, reevaluate stack usage");
+ const mach_msg_type_number_t max_count = (sizeof(MACH_PORT_INFO_OUT) / sizeof(MACH_PORT_INFO_OUT[0]));
+ typeof(MACH_PORT_INFO_OUT[0]) info[max_count];
+
+ /*
+ * zero out our stack buffer because not all flavors of
+ * port_get_attributes initialize the whole struct
+ */
+ bzero(info, sizeof(MACH_PORT_INFO_OUT));
+
+ if (copyin(CAST_USER_ADDR_T(args->count), &count, sizeof(count))) {
+ rv = MACH_SEND_INVALID_DATA;
+ goto done;
+ }
+ if (count > max_count) {
+ count = max_count;
+ }
+
+ rv = mach_port_get_attributes(task->itk_space, args->name, args->flavor, info, &count);
+ if (rv == KERN_SUCCESS) {
+ rv = copyout(&count, CAST_USER_ADDR_T(args->count), sizeof(count));
+ }
+ if (rv == KERN_SUCCESS && count > 0) {
+ rv = copyout(info, CAST_USER_ADDR_T(args->info), count * sizeof(info[0]));
+ }
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_port_insert_member(task->itk_space, args->name, args->pset);
-
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_port_extract_member(task->itk_space, args->name, args->pset);
-
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
int rv = MACH_SEND_INVALID_DEST;
mach_port_options_t options;
- if (copyin(args->options, (char *)&options, sizeof (options))) {
+ if (copyin(args->options, (char *)&options, sizeof(options))) {
rv = MACH_SEND_INVALID_DATA;
goto done;
}
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_port_construct(task->itk_space, &options, args->context, &name);
- if (rv == KERN_SUCCESS)
- rv = copyout(&name, args->name, sizeof (name));
+ if (rv == KERN_SUCCESS) {
+ rv = copyout(&name, args->name, sizeof(name));
+ }
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_port_destruct(task->itk_space, args->name, args->srdelta, args->guard);
-
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_port_guard(task->itk_space, args->name, args->guard, args->strict);
-
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
int
task_t task = port_name_to_task(args->target);
int rv = MACH_SEND_INVALID_DEST;
- if (task != current_task())
+ if (task != current_task()) {
goto done;
+ }
rv = mach_port_unguard(task->itk_space, args->name, args->guard);
-
+
+done:
+ if (task) {
+ task_deallocate(task);
+ }
+ return rv;
+}
+
+int
+_kernelrpc_mach_port_type_trap(struct _kernelrpc_mach_port_type_args *args)
+{
+ task_t task = port_name_to_task(args->target);
+ int rv = MACH_SEND_INVALID_DEST;
+ mach_port_type_t type;
+
+ if (task != current_task()) {
+ goto done;
+ }
+
+ rv = mach_port_type(task->itk_space, args->name, &type);
+ if (rv == KERN_SUCCESS) {
+ rv = copyout(&type, args->ptype, sizeof(type));
+ }
+
done:
- if (task)
+ if (task) {
task_deallocate(task);
- return (rv);
+ }
+ return rv;
}
+int
+_kernelrpc_mach_port_request_notification_trap(
+ struct _kernelrpc_mach_port_request_notification_args *args)
+{
+ task_t task = port_name_to_task(args->target);
+ int rv = MACH_SEND_INVALID_DEST;
+ ipc_port_t notify, previous;
+ mach_msg_type_name_t disp;
+ mach_port_name_t previous_name = MACH_PORT_NULL;
+
+ if (task != current_task()) {
+ goto done;
+ }
+
+ disp = ipc_object_copyin_type(args->notifyPoly);
+ if (disp != MACH_MSG_TYPE_PORT_SEND_ONCE) {
+ goto done;
+ }
+
+ if (MACH_PORT_VALID(args->notify)) {
+ rv = ipc_object_copyin(task->itk_space, args->notify, args->notifyPoly,
+ (ipc_object_t *)¬ify, 0, NULL, 0);
+ } else {
+ notify = CAST_MACH_NAME_TO_PORT(args->notify);
+ }
+ if (rv != KERN_SUCCESS) {
+ goto done;
+ }
+
+ rv = mach_port_request_notification(task->itk_space, args->name,
+ args->msgid, args->sync, notify, &previous);
+ if (rv != KERN_SUCCESS) {
+ ipc_object_destroy(ip_to_object(notify), disp);
+ goto done;
+ }
+
+ if (IP_VALID(previous)) {
+ // Remove once <rdar://problem/45522961> is fixed.
+ // We need to make ith_knote NULL as ipc_object_copyout() uses
+ // thread-argument-passing and its value should not be garbage
+ current_thread()->ith_knote = ITH_KNOTE_NULL;
+ rv = ipc_object_copyout(task->itk_space, ip_to_object(previous),
+ MACH_MSG_TYPE_PORT_SEND_ONCE, NULL, NULL, &previous_name);
+ if (rv != KERN_SUCCESS) {
+ ipc_object_destroy(ip_to_object(previous),
+ MACH_MSG_TYPE_PORT_SEND_ONCE);
+ goto done;
+ }
+ }
+
+ rv = copyout(&previous_name, args->previous, sizeof(previous_name));
+
+done:
+ if (task) {
+ task_deallocate(task);
+ }
+ return rv;
+}
+
+kern_return_t
+host_create_mach_voucher_trap(struct host_create_mach_voucher_args *args)
+{
+ host_t host = port_name_to_host(args->host);
+ ipc_voucher_t new_voucher = IV_NULL;
+ ipc_port_t voucher_port = IPC_PORT_NULL;
+ mach_port_name_t voucher_name = 0;
+ kern_return_t kr = 0;
+
+ if (host == HOST_NULL) {
+ return MACH_SEND_INVALID_DEST;
+ }
+
+ if (args->recipes_size < 0) {
+ return KERN_INVALID_ARGUMENT;
+ } else if (args->recipes_size > MACH_VOUCHER_ATTR_MAX_RAW_RECIPE_ARRAY_SIZE) {
+ return MIG_ARRAY_TOO_LARGE;
+ }
+
+ if (args->recipes_size < MACH_VOUCHER_TRAP_STACK_LIMIT) {
+ /* keep small recipes on the stack for speed */
+ uint8_t krecipes[args->recipes_size];
+ if (copyin(CAST_USER_ADDR_T(args->recipes), (void *)krecipes, args->recipes_size)) {
+ kr = KERN_MEMORY_ERROR;
+ goto done;
+ }
+ kr = host_create_mach_voucher(host, krecipes, args->recipes_size, &new_voucher);
+ } else {
+ uint8_t *krecipes = kalloc((vm_size_t)args->recipes_size);
+ if (!krecipes) {
+ kr = KERN_RESOURCE_SHORTAGE;
+ goto done;
+ }
+
+ if (copyin(CAST_USER_ADDR_T(args->recipes), (void *)krecipes, args->recipes_size)) {
+ kfree(krecipes, (vm_size_t)args->recipes_size);
+ kr = KERN_MEMORY_ERROR;
+ goto done;
+ }
+
+ kr = host_create_mach_voucher(host, krecipes, args->recipes_size, &new_voucher);
+ kfree(krecipes, (vm_size_t)args->recipes_size);
+ }
+
+ if (kr == 0) {
+ voucher_port = convert_voucher_to_port(new_voucher);
+ voucher_name = ipc_port_copyout_send(voucher_port, current_space());
+
+ kr = copyout(&voucher_name, args->voucher, sizeof(voucher_name));
+ }
+
+done:
+ return kr;
+}
+
+kern_return_t
+mach_voucher_extract_attr_recipe_trap(struct mach_voucher_extract_attr_recipe_args *args)
+{
+ ipc_voucher_t voucher = IV_NULL;
+ kern_return_t kr = KERN_SUCCESS;
+ mach_msg_type_number_t sz = 0;
+
+ if (copyin(args->recipe_size, (void *)&sz, sizeof(sz))) {
+ return KERN_MEMORY_ERROR;
+ }
+
+ if (sz > MACH_VOUCHER_ATTR_MAX_RAW_RECIPE_ARRAY_SIZE) {
+ return MIG_ARRAY_TOO_LARGE;
+ }
+
+ voucher = convert_port_name_to_voucher(args->voucher_name);
+ if (voucher == IV_NULL) {
+ return MACH_SEND_INVALID_DEST;
+ }
+
+ mach_msg_type_number_t max_sz = sz;
+
+ if (sz < MACH_VOUCHER_TRAP_STACK_LIMIT) {
+ /* keep small recipes on the stack for speed */
+ uint8_t krecipe[sz];
+ bzero(krecipe, sz);
+ if (copyin(CAST_USER_ADDR_T(args->recipe), (void *)krecipe, sz)) {
+ kr = KERN_MEMORY_ERROR;
+ goto done;
+ }
+ kr = mach_voucher_extract_attr_recipe(voucher, args->key,
+ (mach_voucher_attr_raw_recipe_t)krecipe, &sz);
+ assert(sz <= max_sz);
+
+ if (kr == KERN_SUCCESS && sz > 0) {
+ kr = copyout(krecipe, CAST_USER_ADDR_T(args->recipe), sz);
+ }
+ } else {
+ uint8_t *krecipe = kalloc((vm_size_t)max_sz);
+ if (!krecipe) {
+ kr = KERN_RESOURCE_SHORTAGE;
+ goto done;
+ }
+
+ if (copyin(CAST_USER_ADDR_T(args->recipe), (void *)krecipe, sz)) {
+ kfree(krecipe, (vm_size_t)max_sz);
+ kr = KERN_MEMORY_ERROR;
+ goto done;
+ }
+
+ kr = mach_voucher_extract_attr_recipe(voucher, args->key,
+ (mach_voucher_attr_raw_recipe_t)krecipe, &sz);
+ assert(sz <= max_sz);
+
+ if (kr == KERN_SUCCESS && sz > 0) {
+ kr = copyout(krecipe, CAST_USER_ADDR_T(args->recipe), sz);
+ }
+ kfree(krecipe, (vm_size_t)max_sz);
+ }
+
+ if (kr == KERN_SUCCESS) {
+ kr = copyout(&sz, args->recipe_size, sizeof(sz));
+ }
+
+done:
+ ipc_voucher_release(voucher);
+ return kr;
+}
projects / apple / xnu.git / blobdiff