xnu-7195.50.7.100.1.tar.gz

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

diff --git a/bsd/sys/proc_require.h b/bsd/sys/proc_require.h
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+/*
+ * Copyright (c) 2020 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_PROC_REQUIRE_H_
+#define _SYS_PROC_REQUIRE_H_
+
+typedef struct proc *   proc_t;
+
+/* Used by proc_require for validation of proc zone */
+__options_closed_decl(proc_require_flags_t, unsigned int, {
+       PROC_REQUIRE_ALLOW_USER = 0x0, //always on, just means we allow lookup of any non kernel proc
+       PROC_REQUIRE_ALLOW_NULL = 0x1,
+       PROC_REQUIRE_ALLOW_KERNPROC = 0x2,
+});
+
+/* validates that 'proc' comes from within the proc zone */
+void proc_require(proc_t proc, proc_require_flags_t flags);
+
+#endif // _SYS_PROC_REQUIRE_H_