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https://github.com/edk2-porting/linux-next.git
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65526f638e
Added inline helper functions to check authsize and assoclen for gcm, rfc4106 and rfc4543. These are used in the generic implementation of gcm, rfc4106 and rfc4543. Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
64 lines
867 B
C
64 lines
867 B
C
#ifndef _CRYPTO_GCM_H
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#define _CRYPTO_GCM_H
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#include <linux/errno.h>
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#define GCM_AES_IV_SIZE 12
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#define GCM_RFC4106_IV_SIZE 8
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#define GCM_RFC4543_IV_SIZE 8
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/*
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* validate authentication tag for GCM
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*/
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static inline int crypto_gcm_check_authsize(unsigned int authsize)
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{
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switch (authsize) {
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case 4:
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case 8:
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case 12:
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case 13:
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case 14:
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case 15:
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case 16:
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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/*
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* validate authentication tag for RFC4106
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*/
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static inline int crypto_rfc4106_check_authsize(unsigned int authsize)
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{
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switch (authsize) {
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case 8:
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case 12:
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case 16:
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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/*
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* validate assoclen for RFC4106/RFC4543
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*/
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static inline int crypto_ipsec_check_assoclen(unsigned int assoclen)
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{
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switch (assoclen) {
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case 16:
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case 20:
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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#endif
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