From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- include/crypto/gcm.h | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 include/crypto/gcm.h (limited to 'include/crypto/gcm.h') diff --git a/include/crypto/gcm.h b/include/crypto/gcm.h new file mode 100644 index 000000000..9d7eff04f --- /dev/null +++ b/include/crypto/gcm.h @@ -0,0 +1,63 @@ +#ifndef _CRYPTO_GCM_H +#define _CRYPTO_GCM_H + +#include + +#define GCM_AES_IV_SIZE 12 +#define GCM_RFC4106_IV_SIZE 8 +#define GCM_RFC4543_IV_SIZE 8 + +/* + * validate authentication tag for GCM + */ +static inline int crypto_gcm_check_authsize(unsigned int authsize) +{ + switch (authsize) { + case 4: + case 8: + case 12: + case 13: + case 14: + case 15: + case 16: + break; + default: + return -EINVAL; + } + + return 0; +} + +/* + * validate authentication tag for RFC4106 + */ +static inline int crypto_rfc4106_check_authsize(unsigned int authsize) +{ + switch (authsize) { + case 8: + case 12: + case 16: + break; + default: + return -EINVAL; + } + + return 0; +} + +/* + * validate assoclen for RFC4106/RFC4543 + */ +static inline int crypto_ipsec_check_assoclen(unsigned int assoclen) +{ + switch (assoclen) { + case 16: + case 20: + break; + default: + return -EINVAL; + } + + return 0; +} +#endif -- cgit v1.2.3