freebsd-nq/contrib/openbsm/compat/endian.h
Robert Watson 7a0a89d2cb Merge OpenBSM alpha 4 from OpenBSM vendor branch to head, both
contrib/openbsm (svn merge) and src/sys/{bsm,security/audit} (manual
merge).  Add libauditd build parts and add to auditd's linkage;
force libbsm to build before libauditd.

OpenBSM history for imported revisions below for reference.

MFC after:      1 month
Sponsored by:   Apple Inc.
Obtained from:  TrustedBSD Project

OpenBSM 1.1 alpha 4

- With the addition of BSM error number mapping, we also need to map the
  local error number passed to audit_submit(3) to a BSM error number,
  rather than have the caller perform that conversion.
- Reallocate user audit events to avoid collisions with Solaris; adopt a
  more formal allocation scheme, and add some events allocated in Solaris
  that will be of immediate use on other platforms.
- Add an event for Calife.
- Add au_strerror(3), which allows generating strings for BSM errors
  directly, rather than requiring applications to map to the local error
  space, which might not be able to entirely represent the BSM error
  number space.
- Major auditd rewrite for launchd(8) support.  Add libauditd library
  that is shared between launchd and auditd.
- Add AUDIT_TRIGGER_INITIALIZE trigger (sent via 'audit -i') for
  (re)starting auditing under launchd(8) on Mac OS X.
- Add 'current' symlink to active audit trail.
- Add crash recovery of previous audit trail file when detected on audit
  startup that it has not been properly terminated.
- Add the event AUE_audit_recovery to indicated when an audit trail file
  has been recovered from not being properly terminated.  This event is
  stored in the new audit trail file and includes the path of recovered
  audit trail file.
- Mac OS X and FreeBSD dependent code in auditd.c is separated into
  auditd_darwin.c and auditd_fbsd.c files.
- Add an event for the posix_spawn(2) and fsgetpath(2) Mac OS X system
  calls.
- For Mac OS X, we use ASL(3) instead of syslog(3) for logging.
- Add support for NOTICE level logging.

OpenBSM 1.1 alpha 3

- Add two new functions, au_bsm_to_errno() and au_errno_to_bsm(), to map
  between BSM error numbers (largely the Solaris definitions) and local
  errno(2) values for 32-bit and 64-bit return tokens.  This is required
  as operating systems don't agree on some of the values of more recent
  error numbers.
- Fix a bug how au_to_exec_args(3) and au_to_exec_env(3) calculates the
  total size for the token.  This buge.
- Deprecated Darwin constants, such as TRAILER_PAD_MAGIC, removed.
2008-12-31 11:12:24 +00:00

262 lines
6.1 KiB
C

/*-
* Copyright (c) 2002 Thomas Moestl <tmm@FreeBSD.org>
* Copyright (c) 2005 Robert N. M. Watson
* All rights reserved.
*
* 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.
*
* Derived from FreeBSD src/sys/sys/endian.h:1.6.
* $P4: //depot/projects/trustedbsd/openbsm/compat/endian.h#8 $
*/
#ifndef _COMPAT_ENDIAN_H_
#define _COMPAT_ENDIAN_H_
/*
* Some systems will have the uint/int types defined here already, others
* will need stdint.h.
*/
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
/*
* Some operating systems do not yet have the more recent endian APIs that
* permit encoding to and decoding from byte streams. For those systems, we
* implement local non-optimized versions.
*/
static __inline uint16_t
bswap16(uint16_t int16)
{
const unsigned char *from;
unsigned char *to;
uint16_t t;
from = (const unsigned char *) &int16;
to = (unsigned char *) &t;
to[0] = from[1];
to[1] = from[0];
return (t);
}
static __inline uint32_t
bswap32(uint32_t int32)
{
const unsigned char *from;
unsigned char *to;
uint32_t t;
from = (const unsigned char *) &int32;
to = (unsigned char *) &t;
to[0] = from[3];
to[1] = from[2];
to[2] = from[1];
to[3] = from[0];
return (t);
}
static __inline uint64_t
bswap64(uint64_t int64)
{
const unsigned char *from;
unsigned char *to;
uint64_t t;
from = (const unsigned char *) &int64;
to = (unsigned char *) &t;
to[0] = from[7];
to[1] = from[6];
to[2] = from[5];
to[3] = from[4];
to[4] = from[3];
to[5] = from[2];
to[6] = from[1];
to[7] = from[0];
return (t);
}
#if defined(BYTE_ORDER) && !defined(_BYTE_ORDER)
#define _BYTE_ORDER BYTE_ORDER
#endif
#if !defined(_BYTE_ORDER)
#error "Neither BYTE_ORDER nor _BYTE_ORDER defined"
#endif
#if defined(BIG_ENDIAN) && !defined(_BIG_ENDIAN)
#define _BIG_ENDIAN BIG_ENDIAN
#endif
#if defined(LITTLE_ENDIAN) && !defined(_LITTLE_ENDIAN)
#define _LITTLE_ENDIAN LITTLE_ENDIAN
#endif
/*
* Host to big endian, host to little endian, big endian to host, and little
* endian to host byte order functions as detailed in byteorder(9).
*/
#if _BYTE_ORDER == _LITTLE_ENDIAN
#define htobe16(x) bswap16((x))
#define htobe32(x) bswap32((x))
#define htobe64(x) bswap64((x))
#define htole16(x) ((uint16_t)(x))
#define htole32(x) ((uint32_t)(x))
#define htole64(x) ((uint64_t)(x))
#define be16toh(x) bswap16((x))
#define be32toh(x) bswap32((x))
#define be64toh(x) bswap64((x))
#define le16toh(x) ((uint16_t)(x))
#define le32toh(x) ((uint32_t)(x))
#define le64toh(x) ((uint64_t)(x))
#else /* _BYTE_ORDER != _LITTLE_ENDIAN */
#define htobe16(x) ((uint16_t)(x))
#define htobe32(x) ((uint32_t)(x))
#define htobe64(x) ((uint64_t)(x))
#define htole16(x) bswap16((x))
#define htole32(x) bswap32((x))
#define htole64(x) bswap64((x))
#define be16toh(x) ((uint16_t)(x))
#define be32toh(x) ((uint32_t)(x))
#define be64toh(x) ((uint64_t)(x))
#define le16toh(x) bswap16((x))
#define le32toh(x) bswap32((x))
#define le64toh(x) bswap64((x))
#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */
/* Alignment-agnostic encode/decode bytestream to/from little/big endian. */
static __inline uint16_t
be16dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return ((p[0] << 8) | p[1]);
}
static __inline uint32_t
be32dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
}
static __inline uint64_t
be64dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return (((uint64_t)be32dec(p) << 32) | be32dec(p + 4));
}
static __inline uint16_t
le16dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return ((p[1] << 8) | p[0]);
}
static __inline uint32_t
le32dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return ((p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
}
static __inline uint64_t
le64dec(const void *pp)
{
unsigned char const *p = (unsigned char const *)pp;
return (((uint64_t)le32dec(p + 4) << 32) | le32dec(p));
}
static __inline void
be16enc(void *pp, uint16_t u)
{
unsigned char *p = (unsigned char *)pp;
p[0] = (u >> 8) & 0xff;
p[1] = u & 0xff;
}
static __inline void
be32enc(void *pp, uint32_t u)
{
unsigned char *p = (unsigned char *)pp;
p[0] = (u >> 24) & 0xff;
p[1] = (u >> 16) & 0xff;
p[2] = (u >> 8) & 0xff;
p[3] = u & 0xff;
}
static __inline void
be64enc(void *pp, uint64_t u)
{
unsigned char *p = (unsigned char *)pp;
be32enc(p, u >> 32);
be32enc(p + 4, u & 0xffffffff);
}
static __inline void
le16enc(void *pp, uint16_t u)
{
unsigned char *p = (unsigned char *)pp;
p[0] = u & 0xff;
p[1] = (u >> 8) & 0xff;
}
static __inline void
le32enc(void *pp, uint32_t u)
{
unsigned char *p = (unsigned char *)pp;
p[0] = u & 0xff;
p[1] = (u >> 8) & 0xff;
p[2] = (u >> 16) & 0xff;
p[3] = (u >> 24) & 0xff;
}
static __inline void
le64enc(void *pp, uint64_t u)
{
unsigned char *p = (unsigned char *)pp;
le32enc(p, u & 0xffffffff);
le32enc(p + 4, u >> 32);
}
#endif /* _COMPAT_ENDIAN_H_ */