xnu-2782.1.97.tar.gz

[apple/xnu.git] / bsd / sys / csr.h

diff --git a/bsd/sys/csr.h b/bsd/sys/csr.h
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+/*
+ * Copyright (c) 2014 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
+ * 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
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * 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@
+ */
+
+#ifndef _SYS_CSR_H_
+#define _SYS_CSR_H_
+
+#include <stdint.h>
+#include <sys/appleapiopts.h>
+#include <sys/cdefs.h>
+
+#ifdef __APPLE_API_PRIVATE
+
+typedef uint32_t csr_config_t;
+typedef uint32_t csr_op_t;
+
+/* Rootless configuration flags */
+#define CSR_ALLOW_UNTRUSTED_KEXTS              (1 << 0)
+#define CSR_ALLOW_UNRESTRICTED_FS              (1 << 1)
+#define CSR_ALLOW_TASK_FOR_PID                 (1 << 2)
+#define CSR_ALLOW_KERNEL_DEBUGGER              (1 << 3)
+#define CSR_ALLOW_APPLE_INTERNAL               (1 << 4)
+#define CSR_ALLOW_DESTRUCTIVE_DTRACE   (1 << 5) /* name deprecated */
+#define CSR_ALLOW_UNRESTRICTED_DTRACE  (1 << 5)
+#define CSR_ALLOW_UNRESTRICTED_NVRAM   (1 << 6)
+
+#define CSR_VALID_FLAGS (CSR_ALLOW_UNTRUSTED_KEXTS | \
+                         CSR_ALLOW_UNRESTRICTED_FS | \
+                         CSR_ALLOW_TASK_FOR_PID | \
+                         CSR_ALLOW_KERNEL_DEBUGGER | \
+                         CSR_ALLOW_APPLE_INTERNAL | \
+                         CSR_ALLOW_UNRESTRICTED_DTRACE | \
+                         CSR_ALLOW_UNRESTRICTED_NVRAM)
+
+#ifdef PRIVATE
+/* Private system call interface between Libsyscall and xnu */
+
+/* Syscall flavors */
+#define CSR_OP_CHECK 0
+#define CSR_OP_GET_ACTIVE_CONFIG 1
+#define CSR_OP_GET_PENDING_CONFIG 2
+
+#endif /* PRIVATE */
+
+__BEGIN_DECLS
+
+#ifdef XNU_KERNEL_PRIVATE
+void csr_init(void);
+#endif
+
+#if KERNEL_PRIVATE
+void csr_set_allow_all(int value);
+#endif
+
+/* Syscalls */
+int csr_check(csr_config_t mask);
+int csr_get_active_config(csr_config_t *config);
+int csr_get_pending_config(csr_config_t *config);
+
+__END_DECLS
+
+#endif /* __APPLE_API_PRIVATE */
+
+#endif /* _SYS_CSR_H_ */