/* * Copyright (c) 2013 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_UUID_POLICY_H #define _SYS_PROC_UUID_POLICY_H #include <sys/cdefs.h> #include <sys/param.h> #include <sys/types.h> #include <stdint.h> #include <uuid/uuid.h> __BEGIN_DECLS /* * The proc_uuid_policy subsystem allows a privileged client to * upload policies to the kernel keyed by Mach-O executable * UUID. In-kernel clients can query this policy table cheaply * to determine if a resource or process should by governed * by the policy flags. During early boot, the policy table * may be empty or sparse, which in-kernel clients should * have a specified behavior for. */ #define PROC_UUID_POLICY_OPERATION_CLEAR 0x00000000 #define PROC_UUID_POLICY_OPERATION_ADD 0x00000001 #define PROC_UUID_POLICY_OPERATION_REMOVE 0x00000002 /* The namespace of flags are managed by in-kernel clients */ #define PROC_UUID_POLICY_FLAGS_NONE 0x00000000 #define PROC_UUID_NO_CELLULAR 0x00000001 #define PROC_UUID_NECP_APP_POLICY 0x00000002 #define PROC_UUID_ALT_DYLD_POLICY 0x00000004 /* To be removed, replaced by PROC_UUID_NECP_APP_POLICY */ #define PROC_UUID_FLOW_DIVERT 0x00000002 #ifdef BSD_KERNEL_PRIVATE /* * Look up a policy indexed by UUID. * * Paramaters: * uuid UUID to look up, must be not the zero-uuid * flags Flags that have been associated with the UUID on successful * lookup. * gencount The generation count of the internal policy table representation. * * Initial lookups by an in-kernel subsystem should pass 0 for flags/gencount. * Subsequent lookups for the same UUID with the same flags and gencount passed * in can short-circuit the lookup if the generation count has not changed. * * Return: * 0 Success, UUID was found, flags and gencount are returned * EINVAL Bad UUID or other pointer parameter * ENOENT UUID not found * */ extern int proc_uuid_policy_lookup(uuid_t uuid, uint32_t *flags, int32_t *gencount); extern void proc_uuid_policy_init(void); extern int proc_uuid_policy_kernel(uint32_t operation, uuid_t uuid, uint32_t flags); #endif /* BSD_KERNEL_PRIVATE */ #ifndef KERNEL /* * Upload a policy indexed by UUID. * * Parameters: * operation CLEAR Clear specified flags for all entries. * Entries are removed if they have no remaining flags. * ADD Add the specified UUID and flags to the policy table. * Flags are ORed with existing entries for the UUID. * REMOVE Mask out flags in the entry for the specified UUID. * Entry is removed if it has no remaining flags. * uuid Pointer to UUID for Mach-O executable * uuidlen sizeof(uuid_t) * flags Flags to be stored in the policy table. See operation notes above. * * Return: * 0 Success, operation completed without error. * -1 Failure, errno can contain: * ENOENT REMOVE operation specified a UUID not in the policy table. * EPERM Call is not privileged to call this system call * EINVAL Invalid parameter * ERANGE Invalid uuidlen * ENOMEM Too many entries exist */ extern int proc_uuid_policy(uint32_t operation, uuid_t uuid, size_t uuidlen, uint32_t flags); #endif /* !KERNEL */ __END_DECLS #endif /*_SYS_PROC_UUID_POLICY_H */