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net/tls: Describe ciphers sizes by const structs

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Introduce cipher sizes descriptor. It helps reducing the amount of code
duplications and repeated switch/cases that assigns the proper sizes
according to the cipher type.

Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Tariq Toukan 2022-09-20 16:01:47 +03:00 • committed by Jakub Kicinski
parent 8db3d514e9
commit 2d2c5ea242
2 changed files with 27 additions and 0 deletions
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17
net/tls/tls_main.c
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@ -58,6 +58,23 @@ enum {
TLS_NUM_PROTS,
};
#define CIPHER_SIZE_DESC(cipher) [cipher] = { \
.iv = cipher ## _IV_SIZE, \
.key = cipher ## _KEY_SIZE, \
.salt = cipher ## _SALT_SIZE, \
.tag = cipher ## _TAG_SIZE, \
.rec_seq = cipher ## _REC_SEQ_SIZE, \
}
const struct tls_cipher_size_desc tls_cipher_size_desc[] = {
CIPHER_SIZE_DESC(TLS_CIPHER_AES_GCM_128),
CIPHER_SIZE_DESC(TLS_CIPHER_AES_GCM_256),
CIPHER_SIZE_DESC(TLS_CIPHER_AES_CCM_128),
CIPHER_SIZE_DESC(TLS_CIPHER_CHACHA20_POLY1305),
CIPHER_SIZE_DESC(TLS_CIPHER_SM4_GCM),
CIPHER_SIZE_DESC(TLS_CIPHER_SM4_CCM),
};
static const struct proto *saved_tcpv6_prot;
static DEFINE_MUTEX(tcpv6_prot_mutex);
static const struct proto *saved_tcpv4_prot;