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📄 Make.tags.inc(2.13 KB)
📄 Makefile(302 B)
📄 bus_if.m(26.31 KB)
📄 capabilities.conf(13.67 KB)
📄 clock_if.m(1.7 KB)
📄 cpufreq_if.m(2.27 KB)
📄 device_if.m(10.41 KB)
📄 firmw.S(2.15 KB)
📄 genassym.sh(1.11 KB)
📄 genoffset.c(1.68 KB)
📄 genoffset.sh(3.58 KB)
📄 imgact_aout.c(9.45 KB)
📄 imgact_binmisc.c(18.64 KB)
📄 imgact_elf.c(76.32 KB)
📄 imgact_elf32.c(1.47 KB)
📄 imgact_elf64.c(1.47 KB)
📄 imgact_shell.c(8.41 KB)
📄 init_main.c(24.31 KB)
📄 init_sysent.c(95.3 KB)
📄 kern_acct.c(19.03 KB)
📄 kern_alq.c(24.97 KB)
📄 kern_clock.c(21.12 KB)
📄 kern_clocksource.c(23.34 KB)
📄 kern_condvar.c(11.28 KB)
📄 kern_conf.c(36.14 KB)
📄 kern_cons.c(15.75 KB)
📄 kern_context.c(3.59 KB)
📄 kern_cpu.c(30.77 KB)
📄 kern_cpuset.c(59.78 KB)
📄 kern_ctf.c(8.73 KB)
📄 kern_descrip.c(112.87 KB)
📄 kern_dtrace.c(2.94 KB)
📄 kern_dump.c(8.51 KB)
📄 kern_environment.c(22.75 KB)
📄 kern_et.c(7.1 KB)
📄 kern_event.c(62.49 KB)
📄 kern_exec.c(46.67 KB)
📄 kern_exit.c(34.61 KB)
📄 kern_fail.c(29.32 KB)
📄 kern_ffclock.c(12.66 KB)
📄 kern_fork.c(28.29 KB)
📄 kern_hhook.c(13.58 KB)
📄 kern_idle.c(2.74 KB)
📄 kern_intr.c(40.44 KB)
📄 kern_jail.c(112.67 KB)
📄 kern_kcov.c(15.32 KB)
📄 kern_khelp.c(9.45 KB)
📄 kern_kthread.c(11.8 KB)
📄 kern_ktr.c(11.93 KB)
📄 kern_ktrace.c(31.41 KB)
📄 kern_linker.c(54.3 KB)
📄 kern_lock.c(46.99 KB)
📄 kern_lockf.c(64.46 KB)
📄 kern_lockstat.c(3.8 KB)
📄 kern_loginclass.c(6.69 KB)
📄 kern_malloc.c(37.09 KB)
📄 kern_mbuf.c(43.16 KB)
📄 kern_mib.c(24.26 KB)
📄 kern_module.c(11.05 KB)
📄 kern_mtxpool.c(5.82 KB)
📄 kern_mutex.c(33.62 KB)
📄 kern_ntptime.c(32.49 KB)
📄 kern_osd.c(12.37 KB)
📄 kern_physio.c(5.74 KB)
📄 kern_pmc.c(8.89 KB)
📄 kern_poll.c(15.86 KB)
📄 kern_priv.c(9.14 KB)
📄 kern_proc.c(80.01 KB)
📄 kern_procctl.c(19.48 KB)
📄 kern_prot.c(57.94 KB)
📄 kern_racct.c(34.01 KB)
📄 kern_rangelock.c(8.67 KB)
📄 kern_rctl.c(53.87 KB)
📄 kern_resource.c(36.66 KB)
📄 kern_rmlock.c(28.27 KB)
📄 kern_rwlock.c(40.72 KB)
📄 kern_sdt.c(2.05 KB)
📄 kern_sema.c(4.85 KB)
📄 kern_sendfile.c(33.97 KB)
📄 kern_sharedpage.c(10.37 KB)
📄 kern_shutdown.c(43.34 KB)
📄 kern_sig.c(101.89 KB)
📄 kern_switch.c(13.85 KB)
📄 kern_sx.c(40.27 KB)
📄 kern_synch.c(18.17 KB)
📄 kern_syscalls.c(6.74 KB)
📄 kern_sysctl.c(67.24 KB)
📄 kern_tc.c(55.73 KB)
📄 kern_thr.c(14.14 KB)
📄 kern_thread.c(41.75 KB)
📄 kern_time.c(40.89 KB)
📄 kern_timeout.c(43.08 KB)
📄 kern_tslog.c(3.44 KB)
📄 kern_ubsan.c(50.74 KB)
📄 kern_umtx.c(107.14 KB)
📄 kern_uuid.c(11.68 KB)
📄 kern_xxx.c(10.44 KB)
📄 ksched.c(6.56 KB)
📄 link_elf.c(47.99 KB)
📄 link_elf_obj.c(44.41 KB)
📄 linker_if.m(3.96 KB)
📄 makesyscalls.sh(23.57 KB)
📄 md4c.c(7.89 KB)
📄 md5c.c(9.56 KB)
📄 msi_if.m(2.48 KB)
📄 p1003_1b.c(8.84 KB)
📄 pic_if.m(3.9 KB)
📄 posix4_mib.c(5.59 KB)
📄 sched_4bsd.c(45.03 KB)
📄 sched_ule.c(82.65 KB)
📄 serdev_if.m(3.49 KB)
📄 stack_protector.c(613 B)
📄 subr_acl_nfs4.c(37.42 KB)
📄 subr_acl_posix1e.c(17.71 KB)
📄 subr_atomic64.c(3.97 KB)
📄 subr_autoconf.c(7.7 KB)
📄 subr_blist.c(31.88 KB)
📄 subr_boot.c(5.8 KB)
📄 subr_bufring.c(2.21 KB)
📄 subr_bus.c(145.4 KB)
📄 subr_bus_dma.c(19.67 KB)
📄 subr_busdma_bufalloc.c(5.24 KB)
📄 subr_capability.c(11.93 KB)
📄 subr_clock.c(10.61 KB)
📄 subr_compressor.c(13.11 KB)
📄 subr_counter.c(4.44 KB)
📄 subr_coverage.c(6.17 KB)
📄 subr_csan.c(25.39 KB)
📄 subr_devmap.c(9.8 KB)
📄 subr_devstat.c(16.21 KB)
📄 subr_disk.c(8.54 KB)
📄 subr_dummy_vdso_tc.c(1.7 KB)
📄 subr_early.c(2.26 KB)
📄 subr_epoch.c(25.02 KB)
📄 subr_eventhandler.c(9.17 KB)
📄 subr_fattime.c(9.98 KB)
📄 subr_filter.c(12.2 KB)
📄 subr_firmware.c(13.88 KB)
📄 subr_gtaskqueue.c(20.19 KB)
📄 subr_hash.c(4.8 KB)
📄 subr_hints.c(12.87 KB)
📄 subr_intr.c(40.61 KB)
📄 subr_kdb.c(16.13 KB)
📄 subr_kobj.c(7.1 KB)
📄 subr_lock.c(18.81 KB)
📄 subr_log.c(7.64 KB)
📄 subr_mchain.c(11.06 KB)
📄 subr_module.c(12.98 KB)
📄 subr_msgbuf.c(10.6 KB)
📄 subr_param.c(10.93 KB)
📄 subr_pcpu.c(10.18 KB)
📄 subr_pctrie.c(20.99 KB)
📄 subr_physmem.c(11.52 KB)
📄 subr_pidctrl.c(5.43 KB)
📄 subr_power.c(3.13 KB)
📄 subr_prf.c(27.42 KB)
📄 subr_prng.c(3.36 KB)
📄 subr_prof.c(15.43 KB)
📄 subr_rangeset.c(8.5 KB)
📄 subr_rman.c(27.61 KB)
📄 subr_rtc.c(11.42 KB)
📄 subr_sbuf.c(20.53 KB)
📄 subr_scanf.c(15.59 KB)
📄 subr_sfbuf.c(6.17 KB)
📄 subr_sglist.c(22.83 KB)
📄 subr_sleepqueue.c(39.43 KB)
📄 subr_smp.c(31.62 KB)
📄 subr_smr.c(20.17 KB)
📄 subr_stack.c(6.47 KB)
📄 subr_stats.c(103.01 KB)
📄 subr_syscall.c(7.98 KB)
📄 subr_taskqueue.c(21.1 KB)
📄 subr_terminal.c(15.52 KB)
📄 subr_trap.c(10.87 KB)
📄 subr_turnstile.c(35.58 KB)
📄 subr_uio.c(11.38 KB)
📄 subr_unit.c(22.97 KB)
📄 subr_vmem.c(43.25 KB)
📄 subr_witness.c(84.59 KB)
📄 sys_capability.c(15.06 KB)
📄 sys_eventfd.c(8.42 KB)
📄 sys_generic.c(44.22 KB)
📄 sys_getrandom.c(4.21 KB)
📄 sys_pipe.c(45.14 KB)
📄 sys_procdesc.c(14.57 KB)
📄 sys_process.c(30.73 KB)
📄 sys_socket.c(20.11 KB)
📄 syscalls.c(22.73 KB)
📄 syscalls.master(60.26 KB)
📄 systrace_args.c(178.49 KB)
📄 sysv_ipc.c(6.53 KB)
📄 sysv_msg.c(48.65 KB)
📄 sysv_sem.c(49.85 KB)
📄 sysv_shm.c(43.93 KB)
📄 tty.c(55.14 KB)
📄 tty_compat.c(11.46 KB)
📄 tty_info.c(9.93 KB)
📄 tty_inq.c(12.22 KB)
📄 tty_outq.c(8.74 KB)
📄 tty_pts.c(19.74 KB)
📄 tty_tty.c(2.83 KB)
📄 tty_ttydisc.c(28.6 KB)
📄 uipc_accf.c(8.07 KB)
📄 uipc_debug.c(12.42 KB)
📄 uipc_domain.c(13.13 KB)
📄 uipc_ktls.c(55.7 KB)
📄 uipc_mbuf.c(52.45 KB)
📄 uipc_mbuf2.c(12.64 KB)
📄 uipc_mbufhash.c(4.9 KB)
📄 uipc_mqueue.c(64.64 KB)
📄 uipc_sem.c(25.18 KB)
📄 uipc_shm.c(50.47 KB)
📄 uipc_sockbuf.c(42.9 KB)
📄 uipc_socket.c(110.61 KB)
📄 uipc_syscalls.c(35.94 KB)
📄 uipc_usrreq.c(75.11 KB)
📄 vfs_acl.c(14.5 KB)
📄 vfs_aio.c(76.32 KB)
📄 vfs_bio.c(145.39 KB)
📄 vfs_cache.c(143.09 KB)
📄 vfs_cluster.c(28.36 KB)
📄 vfs_default.c(33.16 KB)
📄 vfs_export.c(14.55 KB)
📄 vfs_extattr.c(17.91 KB)
📄 vfs_hash.c(6 KB)
📄 vfs_init.c(15.86 KB)
📄 vfs_lookup.c(45.48 KB)
📄 vfs_mount.c(62.58 KB)
📄 vfs_mountroot.c(26.23 KB)
📄 vfs_subr.c(167.52 KB)
📄 vfs_syscalls.c(106.86 KB)
📄 vfs_vnops.c(86.28 KB)
📄 vnode_if.src(13.66 KB)

Editing: subr_capability.c

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2013 FreeBSD Foundation
 * All rights reserved.
 *
 * This software was developed by Pawel Jakub Dawidek under sponsorship from
 * the FreeBSD Foundation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

/*
 * Note that this file is compiled into the kernel and into libc.
 */

#include <sys/types.h>
#include <sys/capsicum.h>

#ifdef _KERNEL
#include <sys/systm.h>
#include <sys/kernel.h>
#include <machine/stdarg.h>
#else	/* !_KERNEL */
#include <assert.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#endif

#ifdef _KERNEL
#define	assert(exp)	KASSERT((exp), ("%s:%u", __func__, __LINE__))
__read_mostly cap_rights_t cap_accept_rights;
__read_mostly cap_rights_t cap_bind_rights;
__read_mostly cap_rights_t cap_chflags_rights;
__read_mostly cap_rights_t cap_connect_rights;
__read_mostly cap_rights_t cap_event_rights;
__read_mostly cap_rights_t cap_fchdir_rights;
__read_mostly cap_rights_t cap_fchflags_rights;
__read_mostly cap_rights_t cap_fchmod_rights;
__read_mostly cap_rights_t cap_fchown_rights;
__read_mostly cap_rights_t cap_fcntl_rights;
__read_mostly cap_rights_t cap_fexecve_rights;
__read_mostly cap_rights_t cap_flock_rights;
__read_mostly cap_rights_t cap_fpathconf_rights;
__read_mostly cap_rights_t cap_fstat_rights;
__read_mostly cap_rights_t cap_fstatfs_rights;
__read_mostly cap_rights_t cap_fsync_rights;
__read_mostly cap_rights_t cap_ftruncate_rights;
__read_mostly cap_rights_t cap_futimes_rights;
__read_mostly cap_rights_t cap_getpeername_rights;
__read_mostly cap_rights_t cap_getsockopt_rights;
__read_mostly cap_rights_t cap_getsockname_rights;
__read_mostly cap_rights_t cap_ioctl_rights;
__read_mostly cap_rights_t cap_listen_rights;
__read_mostly cap_rights_t cap_linkat_source_rights;
__read_mostly cap_rights_t cap_linkat_target_rights;
__read_mostly cap_rights_t cap_mmap_rights;
__read_mostly cap_rights_t cap_mkdirat_rights;
__read_mostly cap_rights_t cap_mkfifoat_rights;
__read_mostly cap_rights_t cap_mknodat_rights;
__read_mostly cap_rights_t cap_pdgetpid_rights;
__read_mostly cap_rights_t cap_pdkill_rights;
__read_mostly cap_rights_t cap_pread_rights;
__read_mostly cap_rights_t cap_pwrite_rights;
__read_mostly cap_rights_t cap_read_rights;
__read_mostly cap_rights_t cap_recv_rights;
__read_mostly cap_rights_t cap_renameat_source_rights;
__read_mostly cap_rights_t cap_renameat_target_rights;
__read_mostly cap_rights_t cap_seek_rights;
__read_mostly cap_rights_t cap_send_rights;
__read_mostly cap_rights_t cap_send_connect_rights;
__read_mostly cap_rights_t cap_setsockopt_rights;
__read_mostly cap_rights_t cap_shutdown_rights;
__read_mostly cap_rights_t cap_symlinkat_rights;
__read_mostly cap_rights_t cap_unlinkat_rights;
__read_mostly cap_rights_t cap_write_rights;
__read_mostly cap_rights_t cap_no_rights;

static void
cap_rights_sysinit(void *arg)
{
	cap_rights_init_one(&cap_accept_rights, CAP_ACCEPT);
	cap_rights_init_one(&cap_bind_rights, CAP_BIND);
	cap_rights_init_one(&cap_connect_rights, CAP_CONNECT);
	cap_rights_init_one(&cap_event_rights, CAP_EVENT);
	cap_rights_init_one(&cap_fchdir_rights, CAP_FCHDIR);
	cap_rights_init_one(&cap_fchflags_rights, CAP_FCHFLAGS);
	cap_rights_init_one(&cap_fchmod_rights, CAP_FCHMOD);
	cap_rights_init_one(&cap_fchown_rights, CAP_FCHOWN);
	cap_rights_init_one(&cap_fcntl_rights, CAP_FCNTL);
	cap_rights_init_one(&cap_fexecve_rights, CAP_FEXECVE);
	cap_rights_init_one(&cap_flock_rights, CAP_FLOCK);
	cap_rights_init_one(&cap_fpathconf_rights, CAP_FPATHCONF);
	cap_rights_init_one(&cap_fstat_rights, CAP_FSTAT);
	cap_rights_init_one(&cap_fstatfs_rights, CAP_FSTATFS);
	cap_rights_init_one(&cap_fsync_rights, CAP_FSYNC);
	cap_rights_init_one(&cap_ftruncate_rights, CAP_FTRUNCATE);
	cap_rights_init_one(&cap_futimes_rights, CAP_FUTIMES);
	cap_rights_init_one(&cap_getpeername_rights, CAP_GETPEERNAME);
	cap_rights_init_one(&cap_getsockname_rights, CAP_GETSOCKNAME);
	cap_rights_init_one(&cap_getsockopt_rights, CAP_GETSOCKOPT);
	cap_rights_init_one(&cap_ioctl_rights, CAP_IOCTL);
	cap_rights_init_one(&cap_linkat_source_rights, CAP_LINKAT_SOURCE);
	cap_rights_init_one(&cap_linkat_target_rights, CAP_LINKAT_TARGET);
	cap_rights_init_one(&cap_listen_rights, CAP_LISTEN);
	cap_rights_init_one(&cap_mkdirat_rights, CAP_MKDIRAT);
	cap_rights_init_one(&cap_mkfifoat_rights, CAP_MKFIFOAT);
	cap_rights_init_one(&cap_mknodat_rights, CAP_MKNODAT);
	cap_rights_init_one(&cap_mmap_rights, CAP_MMAP);
	cap_rights_init_one(&cap_pdgetpid_rights, CAP_PDGETPID);
	cap_rights_init_one(&cap_pdkill_rights, CAP_PDKILL);
	cap_rights_init_one(&cap_pread_rights, CAP_PREAD);
	cap_rights_init_one(&cap_pwrite_rights, CAP_PWRITE);
	cap_rights_init_one(&cap_read_rights, CAP_READ);
	cap_rights_init_one(&cap_recv_rights, CAP_RECV);
	cap_rights_init_one(&cap_renameat_source_rights, CAP_RENAMEAT_SOURCE);
	cap_rights_init_one(&cap_renameat_target_rights, CAP_RENAMEAT_TARGET);
	cap_rights_init_one(&cap_seek_rights, CAP_SEEK);
	cap_rights_init_one(&cap_send_rights, CAP_SEND);
	cap_rights_init(&cap_send_connect_rights, CAP_SEND, CAP_CONNECT);
	cap_rights_init_one(&cap_setsockopt_rights, CAP_SETSOCKOPT);
	cap_rights_init_one(&cap_shutdown_rights, CAP_SHUTDOWN);
	cap_rights_init_one(&cap_symlinkat_rights, CAP_SYMLINKAT);
	cap_rights_init_one(&cap_unlinkat_rights, CAP_UNLINKAT);
	cap_rights_init_one(&cap_write_rights, CAP_WRITE);
	cap_rights_init(&cap_no_rights);
}
SYSINIT(cap_rights_sysinit, SI_SUB_COPYRIGHT, SI_ORDER_ANY, cap_rights_sysinit,
    NULL);

#endif

#define	CAPARSIZE_MIN	(CAP_RIGHTS_VERSION_00 + 2)
#define	CAPARSIZE_MAX	(CAP_RIGHTS_VERSION + 2)

static __inline int
right_to_index(uint64_t right)
{
	static const int bit2idx[] = {
		-1, 0, 1, -1, 2, -1, -1, -1, 3, -1, -1, -1, -1, -1, -1, -1,
		4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
	};
	int idx;

idx = CAPIDXBIT(right);
	assert(idx >= 0 && idx < sizeof(bit2idx) / sizeof(bit2idx[0]));
	return (bit2idx[idx]);
}

static void
cap_rights_vset(cap_rights_t *rights, va_list ap)
{
	uint64_t right;
	int i, n __unused;

assert(CAPVER(rights) == CAP_RIGHTS_VERSION_00);

n = CAPARSIZE(rights);
	assert(n >= CAPARSIZE_MIN && n <= CAPARSIZE_MAX);

for (;;) {
		right = (uint64_t)va_arg(ap, unsigned long long);
		if (right == 0)
			break;
		assert(CAPRVER(right) == 0);
		i = right_to_index(right);
		assert(i >= 0);
		assert(i < n);
		assert(CAPIDXBIT(rights->cr_rights[i]) == CAPIDXBIT(right));
		rights->cr_rights[i] |= right;
		assert(CAPIDXBIT(rights->cr_rights[i]) == CAPIDXBIT(right));
	}
}

static void
cap_rights_vclear(cap_rights_t *rights, va_list ap)
{
	uint64_t right;
	int i, n __unused;

assert(CAPVER(rights) == CAP_RIGHTS_VERSION_00);

n = CAPARSIZE(rights);
	assert(n >= CAPARSIZE_MIN && n <= CAPARSIZE_MAX);

for (;;) {
		right = (uint64_t)va_arg(ap, unsigned long long);
		if (right == 0)
			break;
		assert(CAPRVER(right) == 0);
		i = right_to_index(right);
		assert(i >= 0);
		assert(i < n);
		assert(CAPIDXBIT(rights->cr_rights[i]) == CAPIDXBIT(right));
		rights->cr_rights[i] &= ~(right & 0x01FFFFFFFFFFFFFFULL);
		assert(CAPIDXBIT(rights->cr_rights[i]) == CAPIDXBIT(right));
	}
}

static bool
cap_rights_is_vset(const cap_rights_t *rights, va_list ap)
{
	uint64_t right;
	int i, n __unused;

assert(CAPVER(rights) == CAP_RIGHTS_VERSION_00);

n = CAPARSIZE(rights);
	assert(n >= CAPARSIZE_MIN && n <= CAPARSIZE_MAX);

for (;;) {
		right = (uint64_t)va_arg(ap, unsigned long long);
		if (right == 0)
			break;
		assert(CAPRVER(right) == 0);
		i = right_to_index(right);
		assert(i >= 0);
		assert(i < n);
		assert(CAPIDXBIT(rights->cr_rights[i]) == CAPIDXBIT(right));
		if ((rights->cr_rights[i] & right) != right)
			return (false);
	}

return (true);
}

cap_rights_t *
__cap_rights_init(int version, cap_rights_t *rights, ...)
{
	unsigned int n __unused;
	va_list ap;

assert(version == CAP_RIGHTS_VERSION_00);

n = version + 2;
	assert(n >= CAPARSIZE_MIN && n <= CAPARSIZE_MAX);
	CAP_NONE(rights);
	va_start(ap, rights);
	cap_rights_vset(rights, ap);
	va_end(ap);

return (rights);
}

cap_rights_t *
__cap_rights_set(cap_rights_t *rights, ...)
{
	va_list ap;

assert(CAPVER(rights) == CAP_RIGHTS_VERSION_00);

va_start(ap, rights);
	cap_rights_vset(rights, ap);
	va_end(ap);

return (rights);
}

cap_rights_t *
__cap_rights_clear(cap_rights_t *rights, ...)
{
	va_list ap;

assert(CAPVER(rights) == CAP_RIGHTS_VERSION_00);

va_start(ap, rights);
	cap_rights_vclear(rights, ap);
	va_end(ap);

return (rights);
}

bool
__cap_rights_is_set(const cap_rights_t *rights, ...)
{
	va_list ap;
	bool ret;

assert(CAPVER(rights) == CAP_RIGHTS_VERSION_00);

va_start(ap, rights);
	ret = cap_rights_is_vset(rights, ap);
	va_end(ap);

return (ret);
}

bool
cap_rights_is_valid(const cap_rights_t *rights)
{
	cap_rights_t allrights;
	int i, j;

if (CAPVER(rights) != CAP_RIGHTS_VERSION_00)
		return (false);
	if (CAPARSIZE(rights) < CAPARSIZE_MIN ||
	    CAPARSIZE(rights) > CAPARSIZE_MAX) {
		return (false);
	}
	CAP_ALL(&allrights);
	if (!cap_rights_contains(&allrights, rights))
		return (false);
	for (i = 0; i < CAPARSIZE(rights); i++) {
		j = right_to_index(rights->cr_rights[i]);
		if (i != j)
			return (false);
		if (i > 0) {
			if (CAPRVER(rights->cr_rights[i]) != 0)
				return (false);
		}
	}

return (true);
}

cap_rights_t *
cap_rights_merge(cap_rights_t *dst, const cap_rights_t *src)
{
	unsigned int i, n;

assert(CAPVER(dst) == CAP_RIGHTS_VERSION_00);
	assert(CAPVER(src) == CAP_RIGHTS_VERSION_00);
	assert(CAPVER(dst) == CAPVER(src));
	assert(cap_rights_is_valid(src));
	assert(cap_rights_is_valid(dst));

n = CAPARSIZE(dst);
	assert(n >= CAPARSIZE_MIN && n <= CAPARSIZE_MAX);

for (i = 0; i < n; i++)
		dst->cr_rights[i] |= src->cr_rights[i];

assert(cap_rights_is_valid(src));
	assert(cap_rights_is_valid(dst));

return (dst);
}

cap_rights_t *
cap_rights_remove(cap_rights_t *dst, const cap_rights_t *src)
{
	unsigned int i, n;

assert(CAPVER(dst) == CAP_RIGHTS_VERSION_00);
	assert(CAPVER(src) == CAP_RIGHTS_VERSION_00);
	assert(CAPVER(dst) == CAPVER(src));
	assert(cap_rights_is_valid(src));
	assert(cap_rights_is_valid(dst));

n = CAPARSIZE(dst);
	assert(n >= CAPARSIZE_MIN && n <= CAPARSIZE_MAX);

for (i = 0; i < n; i++) {
		dst->cr_rights[i] &=
		    ~(src->cr_rights[i] & 0x01FFFFFFFFFFFFFFULL);
	}

assert(cap_rights_is_valid(src));
	assert(cap_rights_is_valid(dst));

return (dst);
}

#ifndef _KERNEL
bool
cap_rights_contains(const cap_rights_t *big, const cap_rights_t *little)
{
	unsigned int i, n;

assert(CAPVER(big) == CAP_RIGHTS_VERSION_00);
	assert(CAPVER(little) == CAP_RIGHTS_VERSION_00);
	assert(CAPVER(big) == CAPVER(little));

n = CAPARSIZE(big);
	assert(n >= CAPARSIZE_MIN && n <= CAPARSIZE_MAX);

for (i = 0; i < n; i++) {
		if ((big->cr_rights[i] & little->cr_rights[i]) !=
		    little->cr_rights[i]) {
			return (false);
		}
	}

return (true);
}
#endif

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