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net/tls: support SM4 GCM/CCM algorithm

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The RFC8998 specification defines the use of the ShangMi algorithm
cipher suites in TLS 1.3, and also supports the GCM/CCM mode using
the SM4 algorithm.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tianjia Zhang 2021-09-16 11:37:38 +08:00 • committed by David S. Miller
parent d1ab2647de
commit 227b9644ab
3 changed files with 110 additions and 0 deletions
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30
include/uapi/linux/tls.h
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@ -84,6 +84,20 @@
#define TLS_CIPHER_CHACHA20_POLY1305_TAG_SIZE 16
#define TLS_CIPHER_CHACHA20_POLY1305_REC_SEQ_SIZE 8
#define TLS_CIPHER_SM4_GCM 55
#define TLS_CIPHER_SM4_GCM_IV_SIZE 8
#define TLS_CIPHER_SM4_GCM_KEY_SIZE 16
#define TLS_CIPHER_SM4_GCM_SALT_SIZE 4
#define TLS_CIPHER_SM4_GCM_TAG_SIZE 16
#define TLS_CIPHER_SM4_GCM_REC_SEQ_SIZE 8
#define TLS_CIPHER_SM4_CCM 56
#define TLS_CIPHER_SM4_CCM_IV_SIZE 8
#define TLS_CIPHER_SM4_CCM_KEY_SIZE 16
#define TLS_CIPHER_SM4_CCM_SALT_SIZE 4
#define TLS_CIPHER_SM4_CCM_TAG_SIZE 16
#define TLS_CIPHER_SM4_CCM_REC_SEQ_SIZE 8
#define TLS_SET_RECORD_TYPE 1
#define TLS_GET_RECORD_TYPE 2
@ -124,6 +138,22 @@ struct tls12_crypto_info_chacha20_poly1305 {
unsigned char rec_seq[TLS_CIPHER_CHACHA20_POLY1305_REC_SEQ_SIZE];
};
struct tls12_crypto_info_sm4_gcm {
struct tls_crypto_info info;
unsigned char iv[TLS_CIPHER_SM4_GCM_IV_SIZE];
unsigned char key[TLS_CIPHER_SM4_GCM_KEY_SIZE];
unsigned char salt[TLS_CIPHER_SM4_GCM_SALT_SIZE];
unsigned char rec_seq[TLS_CIPHER_SM4_GCM_REC_SEQ_SIZE];
};
struct tls12_crypto_info_sm4_ccm {
struct tls_crypto_info info;
unsigned char iv[TLS_CIPHER_SM4_CCM_IV_SIZE];
unsigned char key[TLS_CIPHER_SM4_CCM_KEY_SIZE];
unsigned char salt[TLS_CIPHER_SM4_CCM_SALT_SIZE];
unsigned char rec_seq[TLS_CIPHER_SM4_CCM_REC_SEQ_SIZE];
};
enum {
TLS_INFO_UNSPEC,
TLS_INFO_VERSION,