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63 lines
867 B
63 lines
867 B
#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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