Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#define __SANE_USERSPACE_TYPES__
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#include <sys/syscall.h>
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#include <unistd.h>
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#include "pkey-helpers.h"
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int sys_pkey_alloc(unsigned long flags, unsigned long init_val)
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{
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int ret = syscall(SYS_pkey_alloc, flags, init_val);
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dprintf1("%s(flags=%lx, init_val=%lx) syscall ret: %d errno: %d\n",
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__func__, flags, init_val, ret, errno);
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return ret;
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}
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int sys_pkey_free(unsigned long pkey)
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{
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int ret = syscall(SYS_pkey_free, pkey);
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dprintf1("%s(pkey=%ld) syscall ret: %d\n", __func__, pkey, ret);
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return ret;
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}
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int sys_mprotect_pkey(void *ptr, size_t size, unsigned long orig_prot,
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unsigned long pkey)
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{
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int sret;
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dprintf2("%s(0x%p, %zx, prot=%lx, pkey=%lx)\n", __func__,
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ptr, size, orig_prot, pkey);
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errno = 0;
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sret = syscall(__NR_pkey_mprotect, ptr, size, orig_prot, pkey);
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if (errno) {
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dprintf2("SYS_mprotect_key sret: %d\n", sret);
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dprintf2("SYS_mprotect_key prot: 0x%lx\n", orig_prot);
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dprintf2("SYS_mprotect_key failed, errno: %d\n", errno);
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if (DEBUG_LEVEL >= 2)
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perror("SYS_mprotect_pkey");
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}
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return sret;
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}
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