numam-dpdk/drivers/net/sfc/base/efx_annote.h
Ivan Malov c4ea98c42d net/sfc/base: check buffer size for hash flags
The efx_rx_scale_hash_flags_get interface is unsafe, as it does not
have an argument for the size of the output buffer used to return
the flags. While the only caller currently supplies a sufficiently
large buffer, this should be checked at runtime to avoid writing
past the end of the buffer.

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2018-09-28 01:41:02 +02:00

104 lines
2.5 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2018 Solarflare Communications Inc.
* All rights reserved.
*/
#ifndef _SYS_EFX_ANNOTE_H
#define _SYS_EFX_ANNOTE_H
#if defined(_WIN32) || defined(_WIN64)
#define EFX_HAVE_WINDOWS_ANNOTATIONS 1
#else
#define EFX_HAVE_WINDOWS_ANNOTATIONS 0
#endif /* defined(_WIN32) || defined(_WIN64) */
#if defined(__sun)
#define EFX_HAVE_SOLARIS_ANNOTATIONS 1
#else
#define EFX_HAVE_SOLARIS_ANNOTATIONS 0
#endif /* defined(__sun) */
#if !EFX_HAVE_WINDOWS_ANNOTATIONS
/* Ignore Windows SAL annotations on other platforms */
#define __in
#define __in_opt
#define __in_ecount(_n)
#define __in_ecount_opt(_n)
#define __in_bcount(_n)
#define __in_bcount_opt(_n)
#define __out
#define __out_opt
#define __out_ecount(_n)
#define __out_ecount_opt(_n)
#define __out_ecount_part(_n, _l)
#define __out_bcount(_n)
#define __out_bcount_opt(_n)
#define __out_bcount_part(_n, _l)
#define __out_bcount_part_opt(_n, _l)
#define __deref_out
#define __deref_inout
#define __inout
#define __inout_opt
#define __inout_ecount(_n)
#define __inout_ecount_opt(_n)
#define __inout_bcount(_n)
#define __inout_bcount_opt(_n)
#define __inout_bcount_full_opt(_n)
#define __deref_out_bcount_opt(n)
#define __checkReturn
#define __success(_x)
#define __drv_when(_p, _c)
#endif /* !EFX_HAVE_WINDOWS_ANNOTATIONS */
#if !EFX_HAVE_SOLARIS_ANNOTATIONS
#if EFX_HAVE_WINDOWS_ANNOTATIONS
/*
* Support some SunOS/Solaris style _NOTE() annotations
*
* At present with the facilities provided in the WDL and the SAL we can only
* easily act upon _NOTE(ARGUNUSED(arglist)) annotations.
*
* Intermediate macros to expand individual _NOTE annotation types into
* something the WDK or SAL can understand. They shouldn't be used directly,
* for example EFX_NOTE_ARGUNUSED() is only used as an intermediate step on the
* transformation of _NOTE(ARGUNSED(arg1, arg2)) into
* UNREFERENCED_PARAMETER((arg1, arg2));
*/
#define EFX_NOTE_ALIGNMENT(_fname, _n)
#define EFX_NOTE_ARGUNUSED(...) UNREFERENCED_PARAMETER((__VA_ARGS__));
#define EFX_NOTE_CONSTANTCONDITION
#define EFX_NOTE_CONSTCOND
#define EFX_NOTE_EMPTY
#define EFX_NOTE_FALLTHROUGH
#define EFX_NOTE_FALLTHRU
#define EFX_NOTE_LINTED(_msg)
#define EFX_NOTE_NOTREACHED
#define EFX_NOTE_PRINTFLIKE(_n)
#define EFX_NOTE_SCANFLIKE(_n)
#define EFX_NOTE_VARARGS(_n)
#define _NOTE(_annotation) EFX_NOTE_ ## _annotation
#else
/* Ignore Solaris annotations on other platforms */
#define _NOTE(_annotation)
#endif /* EFX_HAVE_WINDOWS_ANNOTATIONS */
#endif /* !EFX_HAVE_SOLARIS_ANNOTATIONS */
#endif /* _SYS_EFX_ANNOTE_H */