mirror of
https://git.rtems.org/rtems-libbsd/
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b3169c2a6a
Git mirror commit 59f44d20be3f99d181ca742e636d45fc39ec982b. This commit updates OpenSSL to version 1.1.1. This required an update of racoon which uses some internal stuff from OpenSSL and seems to be mostly unmaintained, e.g. there is update in the FreeBSD ports to cope with OpenSSL 1.1.1. Update #3472.
564 lines
20 KiB
C
564 lines
20 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2008-2010, 2015 Robert N. M. Watson
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* Copyright (c) 2012 FreeBSD Foundation
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* All rights reserved.
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*
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* This software was developed at the University of Cambridge Computer
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* Laboratory with support from a grant from Google, Inc.
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*
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* Portions of this software were developed by Pawel Jakub Dawidek under
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* sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Definitions for FreeBSD capabilities facility.
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*/
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#ifndef _SYS_CAPSICUM_H_
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#define _SYS_CAPSICUM_H_
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/caprights.h>
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#include <sys/file.h>
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#include <sys/fcntl.h>
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#ifndef _KERNEL
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#include <stdbool.h>
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#endif
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#define CAPRIGHT(idx, bit) ((1ULL << (57 + (idx))) | (bit))
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/*
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* Possible rights on capabilities.
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*
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* Notes:
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* Some system calls don't require a capability in order to perform an
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* operation on an fd. These include: close, dup, dup2.
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*
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* sendfile is authorized using CAP_READ on the file and CAP_WRITE on the
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* socket.
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*
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* mmap() and aio*() system calls will need special attention as they may
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* involve reads or writes depending a great deal on context.
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*/
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/* INDEX 0 */
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/*
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* General file I/O.
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*/
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/* Allows for openat(O_RDONLY), read(2), readv(2). */
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#define CAP_READ CAPRIGHT(0, 0x0000000000000001ULL)
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/* Allows for openat(O_WRONLY | O_APPEND), write(2), writev(2). */
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#define CAP_WRITE CAPRIGHT(0, 0x0000000000000002ULL)
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/* Allows for lseek(fd, 0, SEEK_CUR). */
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#define CAP_SEEK_TELL CAPRIGHT(0, 0x0000000000000004ULL)
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/* Allows for lseek(2). */
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#define CAP_SEEK (CAP_SEEK_TELL | 0x0000000000000008ULL)
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/* Allows for aio_read(2), pread(2), preadv(2). */
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#define CAP_PREAD (CAP_SEEK | CAP_READ)
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/*
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* Allows for aio_write(2), openat(O_WRONLY) (without O_APPEND), pwrite(2),
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* pwritev(2).
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*/
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#define CAP_PWRITE (CAP_SEEK | CAP_WRITE)
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/* Allows for mmap(PROT_NONE). */
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#define CAP_MMAP CAPRIGHT(0, 0x0000000000000010ULL)
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/* Allows for mmap(PROT_READ). */
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#define CAP_MMAP_R (CAP_MMAP | CAP_SEEK | CAP_READ)
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/* Allows for mmap(PROT_WRITE). */
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#define CAP_MMAP_W (CAP_MMAP | CAP_SEEK | CAP_WRITE)
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/* Allows for mmap(PROT_EXEC). */
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#define CAP_MMAP_X (CAP_MMAP | CAP_SEEK | 0x0000000000000020ULL)
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/* Allows for mmap(PROT_READ | PROT_WRITE). */
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#define CAP_MMAP_RW (CAP_MMAP_R | CAP_MMAP_W)
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/* Allows for mmap(PROT_READ | PROT_EXEC). */
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#define CAP_MMAP_RX (CAP_MMAP_R | CAP_MMAP_X)
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/* Allows for mmap(PROT_WRITE | PROT_EXEC). */
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#define CAP_MMAP_WX (CAP_MMAP_W | CAP_MMAP_X)
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/* Allows for mmap(PROT_READ | PROT_WRITE | PROT_EXEC). */
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#define CAP_MMAP_RWX (CAP_MMAP_R | CAP_MMAP_W | CAP_MMAP_X)
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/* Allows for openat(O_CREAT). */
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#define CAP_CREATE CAPRIGHT(0, 0x0000000000000040ULL)
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/* Allows for openat(O_EXEC) and fexecve(2) in turn. */
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#define CAP_FEXECVE CAPRIGHT(0, 0x0000000000000080ULL)
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/* Allows for openat(O_SYNC), openat(O_FSYNC), fsync(2), aio_fsync(2). */
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#define CAP_FSYNC CAPRIGHT(0, 0x0000000000000100ULL)
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/* Allows for openat(O_TRUNC), ftruncate(2). */
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#define CAP_FTRUNCATE CAPRIGHT(0, 0x0000000000000200ULL)
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/* Lookups - used to constrain *at() calls. */
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#define CAP_LOOKUP CAPRIGHT(0, 0x0000000000000400ULL)
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/* VFS methods. */
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/* Allows for fchdir(2). */
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#define CAP_FCHDIR CAPRIGHT(0, 0x0000000000000800ULL)
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/* Allows for fchflags(2). */
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#define CAP_FCHFLAGS CAPRIGHT(0, 0x0000000000001000ULL)
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/* Allows for fchflags(2) and chflagsat(2). */
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#define CAP_CHFLAGSAT (CAP_FCHFLAGS | CAP_LOOKUP)
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/* Allows for fchmod(2). */
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#define CAP_FCHMOD CAPRIGHT(0, 0x0000000000002000ULL)
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/* Allows for fchmod(2) and fchmodat(2). */
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#define CAP_FCHMODAT (CAP_FCHMOD | CAP_LOOKUP)
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/* Allows for fchown(2). */
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#define CAP_FCHOWN CAPRIGHT(0, 0x0000000000004000ULL)
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/* Allows for fchown(2) and fchownat(2). */
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#define CAP_FCHOWNAT (CAP_FCHOWN | CAP_LOOKUP)
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/* Allows for fcntl(2). */
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#define CAP_FCNTL CAPRIGHT(0, 0x0000000000008000ULL)
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/*
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* Allows for flock(2), openat(O_SHLOCK), openat(O_EXLOCK),
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* fcntl(F_SETLK_REMOTE), fcntl(F_SETLKW), fcntl(F_SETLK), fcntl(F_GETLK).
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*/
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#define CAP_FLOCK CAPRIGHT(0, 0x0000000000010000ULL)
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/* Allows for fpathconf(2). */
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#define CAP_FPATHCONF CAPRIGHT(0, 0x0000000000020000ULL)
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/* Allows for UFS background-fsck operations. */
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#define CAP_FSCK CAPRIGHT(0, 0x0000000000040000ULL)
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/* Allows for fstat(2). */
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#define CAP_FSTAT CAPRIGHT(0, 0x0000000000080000ULL)
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/* Allows for fstat(2), fstatat(2) and faccessat(2). */
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#define CAP_FSTATAT (CAP_FSTAT | CAP_LOOKUP)
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/* Allows for fstatfs(2). */
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#define CAP_FSTATFS CAPRIGHT(0, 0x0000000000100000ULL)
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/* Allows for futimens(2) and futimes(2). */
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#define CAP_FUTIMES CAPRIGHT(0, 0x0000000000200000ULL)
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/* Allows for futimens(2), futimes(2), futimesat(2) and utimensat(2). */
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#define CAP_FUTIMESAT (CAP_FUTIMES | CAP_LOOKUP)
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/* Allows for linkat(2) (target directory descriptor). */
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#define CAP_LINKAT_TARGET (CAP_LOOKUP | 0x0000000000400000ULL)
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/* Allows for mkdirat(2). */
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#define CAP_MKDIRAT (CAP_LOOKUP | 0x0000000000800000ULL)
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/* Allows for mkfifoat(2). */
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#define CAP_MKFIFOAT (CAP_LOOKUP | 0x0000000001000000ULL)
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/* Allows for mknodat(2). */
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#define CAP_MKNODAT (CAP_LOOKUP | 0x0000000002000000ULL)
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/* Allows for renameat(2) (source directory descriptor). */
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#define CAP_RENAMEAT_SOURCE (CAP_LOOKUP | 0x0000000004000000ULL)
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/* Allows for symlinkat(2). */
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#define CAP_SYMLINKAT (CAP_LOOKUP | 0x0000000008000000ULL)
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/*
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* Allows for unlinkat(2) and renameat(2) if destination object exists and
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* will be removed.
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*/
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#define CAP_UNLINKAT (CAP_LOOKUP | 0x0000000010000000ULL)
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/* Socket operations. */
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/* Allows for accept(2) and accept4(2). */
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#define CAP_ACCEPT CAPRIGHT(0, 0x0000000020000000ULL)
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/* Allows for bind(2). */
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#define CAP_BIND CAPRIGHT(0, 0x0000000040000000ULL)
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/* Allows for connect(2). */
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#define CAP_CONNECT CAPRIGHT(0, 0x0000000080000000ULL)
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/* Allows for getpeername(2). */
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#define CAP_GETPEERNAME CAPRIGHT(0, 0x0000000100000000ULL)
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/* Allows for getsockname(2). */
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#define CAP_GETSOCKNAME CAPRIGHT(0, 0x0000000200000000ULL)
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/* Allows for getsockopt(2). */
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#define CAP_GETSOCKOPT CAPRIGHT(0, 0x0000000400000000ULL)
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/* Allows for listen(2). */
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#define CAP_LISTEN CAPRIGHT(0, 0x0000000800000000ULL)
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/* Allows for sctp_peeloff(2). */
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#define CAP_PEELOFF CAPRIGHT(0, 0x0000001000000000ULL)
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#define CAP_RECV CAP_READ
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#define CAP_SEND CAP_WRITE
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/* Allows for setsockopt(2). */
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#define CAP_SETSOCKOPT CAPRIGHT(0, 0x0000002000000000ULL)
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/* Allows for shutdown(2). */
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#define CAP_SHUTDOWN CAPRIGHT(0, 0x0000004000000000ULL)
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/* Allows for bindat(2) on a directory descriptor. */
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#define CAP_BINDAT (CAP_LOOKUP | 0x0000008000000000ULL)
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/* Allows for connectat(2) on a directory descriptor. */
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#define CAP_CONNECTAT (CAP_LOOKUP | 0x0000010000000000ULL)
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/* Allows for linkat(2) (source directory descriptor). */
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#define CAP_LINKAT_SOURCE (CAP_LOOKUP | 0x0000020000000000ULL)
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/* Allows for renameat(2) (target directory descriptor). */
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#define CAP_RENAMEAT_TARGET (CAP_LOOKUP | 0x0000040000000000ULL)
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#define CAP_SOCK_CLIENT \
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(CAP_CONNECT | CAP_GETPEERNAME | CAP_GETSOCKNAME | CAP_GETSOCKOPT | \
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CAP_PEELOFF | CAP_RECV | CAP_SEND | CAP_SETSOCKOPT | CAP_SHUTDOWN)
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#define CAP_SOCK_SERVER \
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(CAP_ACCEPT | CAP_BIND | CAP_GETPEERNAME | CAP_GETSOCKNAME | \
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CAP_GETSOCKOPT | CAP_LISTEN | CAP_PEELOFF | CAP_RECV | CAP_SEND | \
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CAP_SETSOCKOPT | CAP_SHUTDOWN)
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/* All used bits for index 0. */
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#define CAP_ALL0 CAPRIGHT(0, 0x000007FFFFFFFFFFULL)
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/* Available bits for index 0. */
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#define CAP_UNUSED0_44 CAPRIGHT(0, 0x0000080000000000ULL)
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/* ... */
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#define CAP_UNUSED0_57 CAPRIGHT(0, 0x0100000000000000ULL)
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/* INDEX 1 */
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/* Mandatory Access Control. */
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/* Allows for mac_get_fd(3). */
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#define CAP_MAC_GET CAPRIGHT(1, 0x0000000000000001ULL)
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/* Allows for mac_set_fd(3). */
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#define CAP_MAC_SET CAPRIGHT(1, 0x0000000000000002ULL)
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/* Methods on semaphores. */
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#define CAP_SEM_GETVALUE CAPRIGHT(1, 0x0000000000000004ULL)
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#define CAP_SEM_POST CAPRIGHT(1, 0x0000000000000008ULL)
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#define CAP_SEM_WAIT CAPRIGHT(1, 0x0000000000000010ULL)
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/* Allows select(2) and poll(2) on descriptor. */
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#define CAP_EVENT CAPRIGHT(1, 0x0000000000000020ULL)
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/* Allows for kevent(2) on kqueue descriptor with eventlist != NULL. */
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#define CAP_KQUEUE_EVENT CAPRIGHT(1, 0x0000000000000040ULL)
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/* Strange and powerful rights that should not be given lightly. */
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/* Allows for ioctl(2). */
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#define CAP_IOCTL CAPRIGHT(1, 0x0000000000000080ULL)
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#define CAP_TTYHOOK CAPRIGHT(1, 0x0000000000000100ULL)
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/* Process management via process descriptors. */
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/* Allows for pdgetpid(2). */
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#define CAP_PDGETPID CAPRIGHT(1, 0x0000000000000200ULL)
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/* Allows for pdwait4(2). */
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#define CAP_PDWAIT CAPRIGHT(1, 0x0000000000000400ULL)
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/* Allows for pdkill(2). */
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#define CAP_PDKILL CAPRIGHT(1, 0x0000000000000800ULL)
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/* Extended attributes. */
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/* Allows for extattr_delete_fd(2). */
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#define CAP_EXTATTR_DELETE CAPRIGHT(1, 0x0000000000001000ULL)
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/* Allows for extattr_get_fd(2). */
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#define CAP_EXTATTR_GET CAPRIGHT(1, 0x0000000000002000ULL)
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/* Allows for extattr_list_fd(2). */
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#define CAP_EXTATTR_LIST CAPRIGHT(1, 0x0000000000004000ULL)
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/* Allows for extattr_set_fd(2). */
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#define CAP_EXTATTR_SET CAPRIGHT(1, 0x0000000000008000ULL)
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/* Access Control Lists. */
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/* Allows for acl_valid_fd_np(3). */
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#define CAP_ACL_CHECK CAPRIGHT(1, 0x0000000000010000ULL)
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/* Allows for acl_delete_fd_np(3). */
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#define CAP_ACL_DELETE CAPRIGHT(1, 0x0000000000020000ULL)
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/* Allows for acl_get_fd(3) and acl_get_fd_np(3). */
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#define CAP_ACL_GET CAPRIGHT(1, 0x0000000000040000ULL)
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/* Allows for acl_set_fd(3) and acl_set_fd_np(3). */
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#define CAP_ACL_SET CAPRIGHT(1, 0x0000000000080000ULL)
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/* Allows for kevent(2) on kqueue descriptor with changelist != NULL. */
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#define CAP_KQUEUE_CHANGE CAPRIGHT(1, 0x0000000000100000ULL)
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#define CAP_KQUEUE (CAP_KQUEUE_EVENT | CAP_KQUEUE_CHANGE)
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/* All used bits for index 1. */
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#define CAP_ALL1 CAPRIGHT(1, 0x00000000001FFFFFULL)
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/* Available bits for index 1. */
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#define CAP_UNUSED1_22 CAPRIGHT(1, 0x0000000000200000ULL)
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/* ... */
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#define CAP_UNUSED1_57 CAPRIGHT(1, 0x0100000000000000ULL)
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/* Backward compatibility. */
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#define CAP_POLL_EVENT CAP_EVENT
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#define CAP_ALL(rights) do { \
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(rights)->cr_rights[0] = \
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((uint64_t)CAP_RIGHTS_VERSION << 62) | CAP_ALL0; \
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(rights)->cr_rights[1] = CAP_ALL1; \
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} while (0)
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#define CAP_NONE(rights) do { \
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(rights)->cr_rights[0] = \
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((uint64_t)CAP_RIGHTS_VERSION << 62) | CAPRIGHT(0, 0ULL); \
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(rights)->cr_rights[1] = CAPRIGHT(1, 0ULL); \
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} while (0)
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#define CAPRVER(right) ((int)((right) >> 62))
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#define CAPVER(rights) CAPRVER((rights)->cr_rights[0])
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#define CAPARSIZE(rights) (CAPVER(rights) + 2)
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#define CAPIDXBIT(right) ((int)(((right) >> 57) & 0x1F))
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/*
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* Allowed fcntl(2) commands.
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*/
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#define CAP_FCNTL_GETFL (1 << F_GETFL)
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#define CAP_FCNTL_SETFL (1 << F_SETFL)
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#define CAP_FCNTL_GETOWN (1 << F_GETOWN)
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#define CAP_FCNTL_SETOWN (1 << F_SETOWN)
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#define CAP_FCNTL_ALL (CAP_FCNTL_GETFL | CAP_FCNTL_SETFL | \
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CAP_FCNTL_GETOWN | CAP_FCNTL_SETOWN)
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#define CAP_IOCTLS_ALL SSIZE_MAX
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__BEGIN_DECLS
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#ifndef __rtems__
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#define cap_rights_init(...) \
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__cap_rights_init(CAP_RIGHTS_VERSION, __VA_ARGS__, 0ULL)
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cap_rights_t *__cap_rights_init(int version, cap_rights_t *rights, ...);
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#define cap_rights_set(...) \
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__cap_rights_set(__VA_ARGS__, 0ULL)
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cap_rights_t *__cap_rights_set(cap_rights_t *rights, ...);
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#define cap_rights_clear(...) \
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__cap_rights_clear(__VA_ARGS__, 0ULL)
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cap_rights_t *__cap_rights_clear(cap_rights_t *rights, ...);
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#else /* __rtems__ */
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#define cap_rights_init(...) (void)0
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#define cap_rights_set(...) (void)0
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#define cap_rights_clear(...) (void)0
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#endif /* __rtems__ */
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#define cap_rights_is_set(...) \
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__cap_rights_is_set(__VA_ARGS__, 0ULL)
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bool __cap_rights_is_set(const cap_rights_t *rights, ...);
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bool cap_rights_is_valid(const cap_rights_t *rights);
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cap_rights_t *cap_rights_merge(cap_rights_t *dst, const cap_rights_t *src);
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cap_rights_t *cap_rights_remove(cap_rights_t *dst, const cap_rights_t *src);
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bool cap_rights_contains(const cap_rights_t *big, const cap_rights_t *little);
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void __cap_rights_sysinit(void *arg);
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__END_DECLS
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struct cap_rights_init_args {
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cap_rights_t *cria_rights;
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uint64_t cria_value1;
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uint64_t cria_value2;
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uint64_t cria_value3;
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uint64_t cria_value4;
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uint64_t cria_value5;
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};
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#define CAP_RIGHTS_SYSINIT0(name, rights) \
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static struct cap_rights_init_args name##_args = { \
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&(rights) \
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}; \
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SYSINIT(name##_cap_rights_sysinit, SI_SUB_COPYRIGHT+1, SI_ORDER_ANY, \
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__cap_rights_sysinit, &name##_args);
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#define CAP_RIGHTS_SYSINIT1(name, rights, value1) \
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static struct cap_rights_init_args name##_args = { \
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&(rights), \
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(value1) \
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}; \
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SYSINIT(name##_cap_rights_sysinit, SI_SUB_COPYRIGHT+1, SI_ORDER_ANY, \
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__cap_rights_sysinit, &name##_args);
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#define CAP_RIGHTS_SYSINIT2(name, rights, value1, value2) \
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static struct cap_rights_init_args name##_args = { \
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&(rights), \
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(value1), \
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(value2) \
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}; \
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SYSINIT(name##_cap_rights_sysinit, SI_SUB_COPYRIGHT, SI_ORDER_ANY, \
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__cap_rights_sysinit, &name##_args);
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#define CAP_RIGHTS_SYSINIT3(name, rights, value1, value2, value3) \
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static struct cap_rights_init_args name##_args = { \
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&(rights), \
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(value1), \
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(value2), \
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(value3) \
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}; \
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SYSINIT(name##_cap_rights_sysinit, SI_SUB_COPYRIGHT, SI_ORDER_ANY, \
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__cap_rights_sysinit, &name##_args);
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#define CAP_RIGHTS_SYSINIT4(name, rights, value1, value2, value3, value4) \
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static struct cap_rights_init_args name##_args = { \
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&(rights), \
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(value1), \
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(value2), \
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(value3), \
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(value4) \
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}; \
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SYSINIT(name##_cap_rights_sysinit, SI_SUB_COPYRIGHT, SI_ORDER_ANY, \
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__cap_rights_sysinit, &name##_args);
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#define CAP_RIGHTS_DEFINE1(name, value) \
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__read_mostly cap_rights_t name; \
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CAP_RIGHTS_SYSINIT1(name, name, value);
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|
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#ifdef _KERNEL
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|
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#include <sys/systm.h>
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extern cap_rights_t cap_accept_rights;
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extern cap_rights_t cap_bind_rights;
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extern cap_rights_t cap_connect_rights;
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extern cap_rights_t cap_event_rights;
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extern cap_rights_t cap_fchdir_rights;
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extern cap_rights_t cap_fchflags_rights;
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extern cap_rights_t cap_fchmod_rights;
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extern cap_rights_t cap_fchown_rights;
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extern cap_rights_t cap_fcntl_rights;
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extern cap_rights_t cap_fexecve_rights;
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extern cap_rights_t cap_flock_rights;
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extern cap_rights_t cap_fpathconf_rights;
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extern cap_rights_t cap_fstat_rights;
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extern cap_rights_t cap_fstatfs_rights;
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extern cap_rights_t cap_fsync_rights;
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extern cap_rights_t cap_ftruncate_rights;
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extern cap_rights_t cap_futimes_rights;
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extern cap_rights_t cap_getpeername_rights;
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extern cap_rights_t cap_getsockopt_rights;
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extern cap_rights_t cap_getsockname_rights;
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extern cap_rights_t cap_ioctl_rights;
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extern cap_rights_t cap_linkat_source_rights;
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extern cap_rights_t cap_linkat_target_rights;
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extern cap_rights_t cap_listen_rights;
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extern cap_rights_t cap_mkdirat_rights;
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|
extern cap_rights_t cap_mkfifoat_rights;
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extern cap_rights_t cap_mknodat_rights;
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extern cap_rights_t cap_mmap_rights;
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extern cap_rights_t cap_no_rights;
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extern cap_rights_t cap_pdgetpid_rights;
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extern cap_rights_t cap_pdkill_rights;
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extern cap_rights_t cap_pread_rights;
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extern cap_rights_t cap_pwrite_rights;
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extern cap_rights_t cap_read_rights;
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extern cap_rights_t cap_recv_rights;
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extern cap_rights_t cap_renameat_source_rights;
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|
extern cap_rights_t cap_renameat_target_rights;
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|
extern cap_rights_t cap_seek_rights;
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|
extern cap_rights_t cap_send_rights;
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extern cap_rights_t cap_send_connect_rights;
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|
extern cap_rights_t cap_setsockopt_rights;
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|
extern cap_rights_t cap_shutdown_rights;
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|
extern cap_rights_t cap_symlinkat_rights;
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extern cap_rights_t cap_unlinkat_rights;
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extern cap_rights_t cap_write_rights;
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|
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#define IN_CAPABILITY_MODE(td) (((td)->td_ucred->cr_flags & CRED_FLAG_CAPMODE) != 0)
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|
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|
struct filedesc;
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|
struct filedescent;
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|
|
|
/*
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|
* Test whether a capability grants the requested rights.
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|
*/
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int cap_check(const cap_rights_t *havep, const cap_rights_t *needp);
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|
/*
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|
* Convert capability rights into VM access flags.
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|
*/
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|
u_char cap_rights_to_vmprot(const cap_rights_t *havep);
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|
|
|
/*
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|
* For the purposes of procstat(1) and similar tools, allow kern_descrip.c to
|
|
* extract the rights from a capability.
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|
*
|
|
* Dereferencing fdep requires filedesc.h, but including it would cause
|
|
* significant pollution. Instead add a macro for consumers which want it,
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|
* most notably kern_descrip.c.
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|
*/
|
|
#define cap_rights_fde_inline(fdep) (&(fdep)->fde_rights)
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|
|
|
const cap_rights_t *cap_rights_fde(const struct filedescent *fde);
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|
const cap_rights_t *cap_rights(struct filedesc *fdp, int fd);
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|
|
|
int cap_ioctl_check(struct filedesc *fdp, int fd, u_long cmd);
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|
int cap_fcntl_check_fde(struct filedescent *fde, int cmd);
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|
int cap_fcntl_check(struct filedesc *fdp, int fd, int cmd);
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|
|
|
extern bool trap_enotcap;
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|
|
|
#else /* !_KERNEL */
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|
|
|
__BEGIN_DECLS
|
|
/*
|
|
* cap_enter(): Cause the process to enter capability mode, which will
|
|
* prevent it from directly accessing global namespaces. System calls will
|
|
* be limited to process-local, process-inherited, or file descriptor
|
|
* operations. If already in capability mode, a no-op.
|
|
*/
|
|
#ifndef __rtems__
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|
int cap_enter(void);
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|
#else /* __rtems__ */
|
|
static inline int
|
|
cap_enter(void)
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
#endif /* __rtems__ */
|
|
|
|
/*
|
|
* Are we sandboxed (in capability mode)?
|
|
* This is a libc wrapper around the cap_getmode(2) system call.
|
|
*/
|
|
bool cap_sandboxed(void);
|
|
|
|
/*
|
|
* cap_getmode(): Are we in capability mode?
|
|
*/
|
|
int cap_getmode(u_int *modep);
|
|
|
|
/*
|
|
* Limits capability rights for the given descriptor (CAP_*).
|
|
*/
|
|
#ifndef __rtems__
|
|
int cap_rights_limit(int fd, const cap_rights_t *rights);
|
|
#else /* __rtems__ */
|
|
static inline int
|
|
cap_rights_limit(int fd, const cap_rights_t *rights)
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
#endif /* __rtems__ */
|
|
/*
|
|
* Returns capability rights for the given descriptor.
|
|
*/
|
|
#define cap_rights_get(fd, rights) \
|
|
__cap_rights_get(CAP_RIGHTS_VERSION, (fd), (rights))
|
|
int __cap_rights_get(int version, int fd, cap_rights_t *rights);
|
|
/*
|
|
* Limits allowed ioctls for the given descriptor.
|
|
*/
|
|
int cap_ioctls_limit(int fd, const cap_ioctl_t *cmds, size_t ncmds);
|
|
/*
|
|
* Returns array of allowed ioctls for the given descriptor.
|
|
* If all ioctls are allowed, the cmds array is not populated and
|
|
* the function returns CAP_IOCTLS_ALL.
|
|
*/
|
|
ssize_t cap_ioctls_get(int fd, cap_ioctl_t *cmds, size_t maxcmds);
|
|
/*
|
|
* Limits allowed fcntls for the given descriptor (CAP_FCNTL_*).
|
|
*/
|
|
int cap_fcntls_limit(int fd, uint32_t fcntlrights);
|
|
/*
|
|
* Returns bitmask of allowed fcntls for the given descriptor.
|
|
*/
|
|
int cap_fcntls_get(int fd, uint32_t *fcntlrightsp);
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* !_KERNEL */
|
|
|
|
#endif /* !_SYS_CAPSICUM_H_ */
|