diff options
| author | Sabrina Dubroca <sd@queasysnail.net> | 2023-08-25 23:35:13 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-08-27 17:17:41 -0700 |
| commit | 176a3f50bc6a327c82c6b051b0bedd19917081a2 (patch) | |
| tree | 66b70d11deb5edacf23b16eefc0c385346bafc21 /net/tls/tls.h | |
| parent | 8db44ab26bebe969851468bea6072d9a094b2ace (diff) | |
tls: extend tls_cipher_desc to fully describe the ciphers
- add nonce, usually equal to iv_size but not for chacha
- add offsets into the crypto_info for each field
- add algorithm name
- add offloadable flag
Also add helpers to access each field of a crypto_info struct
described by a tls_cipher_desc.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://lore.kernel.org/r/39d5f476d63c171097764e8d38f6f158b7c109ae.1692977948.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/tls/tls.h')
| -rw-r--r-- | net/tls/tls.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/net/tls/tls.h b/net/tls/tls.h index d4b56ca9d267..28a8c0e80e3c 100644 --- a/net/tls/tls.h +++ b/net/tls/tls.h @@ -52,11 +52,19 @@ SNMP_DEC_STATS((net)->mib.tls_statistics, field) struct tls_cipher_desc { + unsigned int nonce; unsigned int iv; unsigned int key; unsigned int salt; unsigned int tag; unsigned int rec_seq; + unsigned int iv_offset; + unsigned int key_offset; + unsigned int salt_offset; + unsigned int rec_seq_offset; + char *cipher_name; + bool offloadable; + size_t crypto_info; }; #define TLS_CIPHER_MIN TLS_CIPHER_AES_GCM_128 @@ -71,6 +79,30 @@ static inline const struct tls_cipher_desc *get_cipher_desc(u16 cipher_type) return &tls_cipher_desc[cipher_type - TLS_CIPHER_MIN]; } +static inline char *crypto_info_iv(struct tls_crypto_info *crypto_info, + const struct tls_cipher_desc *cipher_desc) +{ + return (char *)crypto_info + cipher_desc->iv_offset; +} + +static inline char *crypto_info_key(struct tls_crypto_info *crypto_info, + const struct tls_cipher_desc *cipher_desc) +{ + return (char *)crypto_info + cipher_desc->key_offset; +} + +static inline char *crypto_info_salt(struct tls_crypto_info *crypto_info, + const struct tls_cipher_desc *cipher_desc) +{ + return (char *)crypto_info + cipher_desc->salt_offset; +} + +static inline char *crypto_info_rec_seq(struct tls_crypto_info *crypto_info, + const struct tls_cipher_desc *cipher_desc) +{ + return (char *)crypto_info + cipher_desc->rec_seq_offset; +} + /* TLS records are maintained in 'struct tls_rec'. It stores the memory pages * allocated or mapped for each TLS record. After encryption, the records are |