/*
* Copyright (c) 2021 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
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*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#ifndef _SYS_PROC_RO_H_
#define _SYS_PROC_RO_H_
#include <stdint.h>
#include <sys/_types/_pid_t.h>
#include <sys/cdefs.h>
#include <kern/smr_types.h>
__BEGIN_DECLS __ASSUME_PTR_ABI_SINGLE_BEGIN
#pragma GCC visibility push(hidden)
struct proc;
struct task;
struct ucred;
struct proc_platform_ro_data {
uint32_t p_platform;
uint32_t p_min_sdk;
uint32_t p_sdk;
};
struct task_token_ro_data {
security_token_t sec_token;
audit_token_t audit_token;
};
struct task_filter_ro_data {
uint8_t *__unsafe_indexable mach_trap_filter_mask; /* Mach trap filter bitmask (len: mach_trap_count bits) */
uint8_t *__unsafe_indexable mach_kobj_filter_mask; /* Mach kobject filter bitmask (len: mach_kobj_count bits) */
};
/*!
* @struct proc_ro
*
* @brief
* Store read-only data associated to a task and/or proc
*
* @discussion
* The lifetime of a @c proc_ro structure is 1:1 with that
* of a @c proc_t or a @c task_t. @c proc_t and @c task_t
* point to the same @c proc_ro, except for corpses which
* have an invalid and uninitialized @c proc_t, and the
* proc_data field is uninitalized.
*/
struct proc_ro {
struct proc *pr_proc;
struct task *pr_task;
__xnu_struct_group(proc_ro_data, proc_data, {
uint64_t p_uniqueid; /* process unique ID - incremented on fork/spawn/vfork, remains same across exec. */
int p_idversion; /* version of process identity */
uint32_t p_csflags;
SMR_POINTER(struct ucred *) p_ucred; /* Process owner's identity. (PUCL) */
uint8_t *__unsafe_indexable syscall_filter_mask; /* syscall filter bitmask (length: nsysent bits) */
struct proc_platform_ro_data p_platform_data;
});
__xnu_struct_group(task_ro_data, task_data, {
/* Task security and audit tokens */
struct task_token_ro_data task_tokens;
#ifdef CONFIG_MACF
struct task_filter_ro_data task_filters;
#endif
uint32_t t_flags_ro; /* RO-protected task flags (see osfmk/kern/task.h) */
uint32_t task_control_port_options;
});
};
typedef const struct proc_ro_data *proc_ro_data_t;
typedef const struct task_ro_data *task_ro_data_t;
typedef struct proc_ro *proc_ro_t;
extern proc_ro_t proc_ro_alloc(struct proc *p, proc_ro_data_t p_data, struct task *t, task_ro_data_t t_data);
extern proc_ro_t proc_ro_ref_task(proc_ro_t pr, struct task *t, task_ro_data_t t_data);
extern void proc_ro_erase_task(proc_ro_t pr);
extern proc_ro_t proc_get_ro(struct proc *p) __pure2;
extern proc_ro_t task_get_ro(struct task *t) __pure2;
extern struct task *proc_ro_task(proc_ro_t pr) __pure2;
#pragma GCC visibility pop
__ASSUME_PTR_ABI_SINGLE_END __END_DECLS
#endif /* _SYS_PROC_RO_H_ */