mirror of
https://github.com/jart/cosmopolitan.git
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43 lines
2.7 KiB
C
43 lines
2.7 KiB
C
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/landlock.h"
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#include "libc/calls/strace.internal.h"
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int sys_landlock_restrict_self(int, uint32_t);
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/**
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* Enforces Landlock ruleset on calling thread.
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*
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* @error EOPNOTSUPP if Landlock supported but disabled at boot time
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* @error EINVAL if flags isn't zero
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* @error EBADF if `fd` isn't file descriptor for the current thread
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* @error EBADFD if `fd` is not a ruleset file descriptor
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* @error EPERM if `fd` has no read access to underlying ruleset, or
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* current thread is not running with no_new_privs, or it doesn’t
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* have CAP_SYS_ADMIN in its namespace
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* @error E2BIG if the maximum number of stacked rulesets is
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* reached for current thread
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*/
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int landlock_restrict_self(int fd, uint32_t flags) {
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int rc;
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rc = sys_landlock_restrict_self(fd, flags);
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KERNTRACE("landlock_create_ruleset(%d, %#x) → %d% m", fd, flags, rc);
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return rc;
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}
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