mirror of
https://github.com/openharmony/kernel_linux_common_modules.git
synced 2026-08-27 01:31:36 -04:00
Haryslee
89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2023 Huawei Device Co., Ltd.
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*/
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#ifndef __POINTER_AUTH_COMMON_H__
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#define __POINTER_AUTH_COMMON_H__
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#define is_addr_error(addr) (((addr) >> 48) ^ 0xffff)
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#define pauth_sign(type, key, addr, mod) \
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pauth_common(pac, type, key, addr, mod)
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#define pauth_validate(type, key, addr, mod) \
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pauth_common(aut, type, key, addr, mod)
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#define pauth_strip(type, addr) \
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({ \
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const void *__addr = (addr); \
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\
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asm ("xpac" #type " %0\n" : "+r" (__addr)); \
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(typeof (addr))__addr; \
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})
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#define pauth_hash(addr, mod) ((unsigned int) (pauth_pacga(addr, mod) >> 32))
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#define pauth_common(prefix, type, key, addr, mod) \
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({ \
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const void *__addr = (addr); \
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unsigned long __mod = (unsigned long)(mod); \
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\
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if (__builtin_constant_p(mod) && (__mod == 0)) \
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asm (#prefix #type "z" #key " %0\n" : "+r" (__addr)); \
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else \
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asm (#prefix #type #key " %0, %1\n" : "+r" (__addr) : \
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"r" (__mod)); \
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(typeof (addr))(__addr); \
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})
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#define pauth_get_raw_data(addr) \
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({ \
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const void *__addr; \
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asm ("mov %0, %1\n" : "=&r" (__addr) : \
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"r" (addr)); \
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(void *)(__addr); \
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})
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#define pauth_sign_function(fun, mod, key) \
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({ \
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const void *__fun = (fun); \
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unsigned long __mod = (unsigned long)(mod); \
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asm ("paci" #key " %0, %1\n" : "+r" (__fun) : \
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"r" (__mod)); \
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(void *)(__fun); \
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})
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#define pauth_pacda(addr, mod) pauth_common(pac, d, a, addr, mod)
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#define pauth_pacdb(addr, mod) pauth_common(pac, d, b, addr, mod)
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#define pauth_pacia(addr, mod) pauth_common(pac, i, a, addr, mod)
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#define pauth_pacib(addr, mod) pauth_common(pac, i, b, addr, mod)
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#define pauth_pacga(addr, mod) \
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({ \
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const void *__addr = (addr); \
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unsigned long __mod = (unsigned long)(mod); \
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unsigned long __pac; \
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\
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asm ("pacga %0, %1, %2\n" : "=r" (__pac) : "r" (__addr), \
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"r" (__mod)); \
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__pac; \
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})
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#define pauth_autda(addr, mod) pauth_common(aut, d, a, addr, mod)
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#define pauth_autdb(addr, mod) pauth_common(aut, d, b, addr, mod)
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#define pauth_autia(addr, mod) pauth_common(aut, i, a, addr, mod)
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#define pauth_autib(addr, mod) pauth_common(aut, i, b, addr, mod)
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#define pauth_xpacd(addr) pauth_strip(d, addr)
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#define pauth_xpaci(addr) pauth_strip(i, addr)
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#endif /* __POINTER_AUTH_COMMON_H__ */
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