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| author | Dave Watson <davejwatson@fb.com> | 2018-03-22 20:10:06 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-23 19:25:53 +0300 |
| commit | dbe425599ba05c7415f632e6f5f018453098eb69 (patch) | |
| tree | 03d3502ccc58ba4e4adb8c3c16cd9dbfc70ea0c1 /include/net/tls.h | |
| parent | 69ca9293e8dd9323c6cde579e1855d6ce9489a46 (diff) | |
| download | linux-dbe425599ba05c7415f632e6f5f018453098eb69.tar.xz | |
tls: Move cipher info to a separate struct
Separate tx crypto parameters to a separate cipher_context struct.
The same parameters will be used for rx using the same struct.
tls_advance_record_sn is modified to only take the cipher info.
Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tls.h')
| -rw-r--r-- | include/net/tls.h | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/include/net/tls.h b/include/net/tls.h index 4913430ab807..019e52db1817 100644 --- a/include/net/tls.h +++ b/include/net/tls.h @@ -81,6 +81,16 @@ enum { TLS_PENDING_CLOSED_RECORD }; +struct cipher_context { + u16 prepend_size; + u16 tag_size; + u16 overhead_size; + u16 iv_size; + char *iv; + u16 rec_seq_size; + char *rec_seq; +}; + struct tls_context { union { struct tls_crypto_info crypto_send; @@ -91,13 +101,7 @@ struct tls_context { u8 tx_conf:2; - u16 prepend_size; - u16 tag_size; - u16 overhead_size; - u16 iv_size; - char *iv; - u16 rec_seq_size; - char *rec_seq; + struct cipher_context tx; struct scatterlist *partially_sent_record; u16 partially_sent_offset; @@ -190,7 +194,7 @@ static inline bool tls_bigint_increment(unsigned char *seq, int len) } static inline void tls_advance_record_sn(struct sock *sk, - struct tls_context *ctx) + struct cipher_context *ctx) { if (tls_bigint_increment(ctx->rec_seq, ctx->rec_seq_size)) tls_err_abort(sk); @@ -203,9 +207,9 @@ static inline void tls_fill_prepend(struct tls_context *ctx, size_t plaintext_len, unsigned char record_type) { - size_t pkt_len, iv_size = ctx->iv_size; + size_t pkt_len, iv_size = ctx->tx.iv_size; - pkt_len = plaintext_len + iv_size + ctx->tag_size; + pkt_len = plaintext_len + iv_size + ctx->tx.tag_size; /* we cover nonce explicit here as well, so buf should be of * size KTLS_DTLS_HEADER_SIZE + KTLS_DTLS_NONCE_EXPLICIT_SIZE @@ -217,7 +221,7 @@ static inline void tls_fill_prepend(struct tls_context *ctx, buf[3] = pkt_len >> 8; buf[4] = pkt_len & 0xFF; memcpy(buf + TLS_NONCE_OFFSET, - ctx->iv + TLS_CIPHER_AES_GCM_128_SALT_SIZE, iv_size); + ctx->tx.iv + TLS_CIPHER_AES_GCM_128_SALT_SIZE, iv_size); } static inline void tls_make_aad(char *buf, |