X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/490019cf9519204c5fb36b2fba54ceb983bb6b72..d26ffc64f583ab2d29df48f13518685602bc8832:/libsyscall/mach/host.c

diff --git a/libsyscall/mach/host.c b/libsyscall/mach/host.c
index c6587951f..651d148d8 100644
--- a/libsyscall/mach/host.c
+++ b/libsyscall/mach/host.c
@@ -31,6 +31,7 @@
 #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,
@@ -45,14 +46,63 @@ 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;
 }