cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

auth_gss_internal.h (1091B)

      1// SPDX-License-Identifier: BSD-3-Clause
      2/*
      3 * linux/net/sunrpc/auth_gss/auth_gss_internal.h
      4 *
      5 * Internal definitions for RPCSEC_GSS client authentication
      6 *
      7 * Copyright (c) 2000 The Regents of the University of Michigan.
      8 * All rights reserved.
      9 *
     10 */
     11#include <linux/err.h>
     12#include <linux/string.h>
     13#include <linux/sunrpc/xdr.h>
     14
     15static inline const void *
     16simple_get_bytes(const void *p, const void *end, void *res, size_t len)
     17{
     18	const void *q = (const void *)((const char *)p + len);
     19	if (unlikely(q > end || q < p))
     20		return ERR_PTR(-EFAULT);
     21	memcpy(res, p, len);
     22	return q;
     23}
     24
     25static inline const void *
     26simple_get_netobj(const void *p, const void *end, struct xdr_netobj *dest)
     27{
     28	const void *q;
     29	unsigned int len;
     30
     31	p = simple_get_bytes(p, end, &len, sizeof(len));
     32	if (IS_ERR(p))
     33		return p;
     34	q = (const void *)((const char *)p + len);
     35	if (unlikely(q > end || q < p))
     36		return ERR_PTR(-EFAULT);
     37	if (len) {
     38		dest->data = kmemdup(p, len, GFP_KERNEL);
     39		if (unlikely(dest->data == NULL))
     40			return ERR_PTR(-ENOMEM);
     41	} else
     42		dest->data = NULL;
     43	dest->len = len;
     44	return q;
     45}