/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :viâ
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â Copyright 2022 Justine Alexandra Roberts Tunney                              â
â                                                                              â
â Permission to use, copy, modify, and/or distribute this software for         â
â any purpose with or without fee is hereby granted, provided that the         â
â above copyright notice and this permission notice appear in all copies.      â
â                                                                              â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             â
â PERFORMANCE OF THIS SOFTWARE.                                                â
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#include "libc/calls/landlock.h"
/*
#include "libc/intrin/strace.internal.h"

int sys_landlock_restrict_self(int, uint32_t);
*/

#include <sys/syscall.h>
#include <unistd.h>

/**
 * Enforces Landlock ruleset on calling thread.
 *
 * @error EOPNOTSUPP if Landlock supported but disabled at boot time
 * @error EINVAL if flags isn't zero
 * @error EBADF if `fd` isn't file descriptor for the current thread
 * @error EBADFD if `fd` is not a ruleset file descriptor
 * @error EPERM if `fd` has no read access to underlying ruleset, or
 *     current thread is not running with no_new_privs, or it doesnât
 *     have CAP_SYS_ADMIN in its namespace
 * @error E2BIG if the maximum number of stacked rulesets is
 *     reached for current thread
 */
int landlock_restrict_self(int fd, uint32_t flags) {
  int rc;
  rc = syscall(__NR_landlock_restrict_self, fd, flags);
  //KERNTRACE("landlock_create_ruleset(%d, %#x) â %d% m", fd, flags, rc);
  return rc;
}
