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45 lines
1.1 KiB
45 lines
1.1 KiB
// SPDX-License-Identifier: BSD-3-Clause |
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/* |
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* linux/net/sunrpc/auth_gss/auth_gss_internal.h |
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* |
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* Internal definitions for RPCSEC_GSS client authentication |
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* |
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* Copyright (c) 2000 The Regents of the University of Michigan. |
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* All rights reserved. |
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* |
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*/ |
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#include <linux/err.h> |
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#include <linux/string.h> |
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#include <linux/sunrpc/xdr.h> |
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static inline const void * |
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simple_get_bytes(const void *p, const void *end, void *res, size_t len) |
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{ |
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const void *q = (const void *)((const char *)p + len); |
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if (unlikely(q > end || q < p)) |
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return ERR_PTR(-EFAULT); |
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memcpy(res, p, len); |
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return q; |
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} |
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static inline const void * |
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simple_get_netobj(const void *p, const void *end, struct xdr_netobj *dest) |
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{ |
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const void *q; |
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unsigned int len; |
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p = simple_get_bytes(p, end, &len, sizeof(len)); |
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if (IS_ERR(p)) |
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return p; |
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q = (const void *)((const char *)p + len); |
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if (unlikely(q > end || q < p)) |
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return ERR_PTR(-EFAULT); |
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if (len) { |
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dest->data = kmemdup(p, len, GFP_KERNEL); |
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if (unlikely(dest->data == NULL)) |
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return ERR_PTR(-ENOMEM); |
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} else |
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dest->data = NULL; |
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dest->len = len; |
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return q; |
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}
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