xnu-4570.71.2.tar.gz

[apple/xnu.git] / libsyscall / mach / host.c

diff --git a/libsyscall/mach/host.c b/libsyscall/mach/host.c
index 33503843493ad31049281919231b48d63c661005..651d148d8721b5596bf66749c27064ade9d80402 100644 (file)
--- a/libsyscall/mach/host.c
+++ b/libsyscall/mach/host.c
@@ -26,10 +26,12 @@
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 
+#include <TargetConditionals.h>
 #include <machine/cpu_capabilities.h>
 #include <mach/kern_return.h>
 #include <mach/mach_host.h>
 #include <mach/host_priv.h>
+#include <sys/types.h>
 
 kern_return_t
 host_get_atm_diagnostic_flag(host_t host __unused,
@@ -40,3 +42,67 @@ host_get_atm_diagnostic_flag(host_t host __unused,
        return KERN_SUCCESS;
 }
 
+kern_return_t
+host_get_multiuser_config_flags(host_t host __unused,
+                                                               uint32_t *multiuser_flags)
+{
+#if TARGET_OS_EMBEDDED
+       volatile uint32_t *multiuser_flag_address = (volatile uint32_t *)(uintptr_t)(_COMM_PAGE_MULTIUSER_CONFIG);
+       *multiuser_flags = *multiuser_flag_address;
+       return KERN_SUCCESS;
+#else
+       (void)multiuser_flags;
+       return KERN_NOT_SUPPORTED;
+#endif
+}
+
+kern_return_t
+host_check_multiuser_mode(host_t host __unused,
+                                                 uint32_t *multiuser_mode)
+{
+#if TARGET_OS_EMBEDDED
+       uint32_t multiuser_flags;
+       kern_return_t kr;
+
+       kr = host_get_multiuser_config_flags(host, &multiuser_flags);
+       if (kr != KERN_SUCCESS)
+               return kr;
+       *multiuser_mode = (multiuser_flags & kIsMultiUserDevice) == kIsMultiUserDevice;
+       return KERN_SUCCESS;
+#else
+       (void)multiuser_mode;
+       return KERN_NOT_SUPPORTED;
+#endif
+}
+
+extern kern_return_t
+_kernelrpc_host_create_mach_voucher(mach_port_name_t host,
+                                    mach_voucher_attr_raw_recipe_array_t recipes,
+                                    mach_voucher_attr_recipe_size_t recipesCnt,
+                                    mach_port_name_t *voucher);
+
+kern_return_t
+host_create_mach_voucher(mach_port_name_t host,
+                         mach_voucher_attr_raw_recipe_array_t recipes,
+                         mach_voucher_attr_recipe_size_t recipesCnt,
+                         mach_port_name_t *voucher)
+{
+       kern_return_t rv;
+
+       rv = host_create_mach_voucher_trap(host, recipes, recipesCnt, voucher);
+
+#ifdef __x86_64__
+       /* REMOVE once XBS kernel has new trap */
+       if (rv == ((1 << 24) | 70)) /* see mach/i386/syscall_sw.h */
+               rv = MACH_SEND_INVALID_DEST;
+#elif defined(__i386__)
+       /* REMOVE once XBS kernel has new trap */
+       if (rv == (kern_return_t)(-70))
+               rv = MACH_SEND_INVALID_DEST;
+#endif
+
+       if (rv == MACH_SEND_INVALID_DEST)
+               rv = _kernelrpc_host_create_mach_voucher(host, recipes, recipesCnt, voucher);
+
+       return rv;
+}