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tls: reorder tls_state fields for smaller offsets

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function                                             old     new   delta
xwrite_encrypted                                     363     360      -3
xwrite_and_update_handshake_hash                     117     114      -3
tls_xread_handshake_block                             72      69      -3
tls_error_die                                        211     202      -9
tls_get_outbuf                                        64      49     -15
tls_main                                            2163    2127     -36
tls_xread_record                                     702     639     -63
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-132)           Total: -132 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2017-01-21 02:07:59 +01:00
parent dd2577f21a
commit f6e20724d4
1 changed files with 20 additions and 18 deletions
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38
networking/tls.c
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@ -226,24 +226,28 @@ struct record_hdr {
};
typedef struct tls_state {
int fd;
int fd;
int min_encrypted_len_on_read;
uint8_t encrypt_on_write;
uint8_t *outbuf;
int outbuf_size;
int inbuf_size;
int ofs_to_buffered;
int buffered_size;
uint8_t *inbuf;
//TODO: store just the DER key here, parse/use/delete it when sending client key
//this way it will stay key type agnostic here.
psRsaKey_t server_rsa_pub_key;
sha256_ctx_t handshake_sha256_ctx;
// this is also unused after client key is sent
uint8_t client_and_server_rand32[2 * 32];
// these two are unused after finished messages are exchanged:
sha256_ctx_t handshake_sha256_ctx;
uint8_t master_secret[48];
uint8_t encrypt_on_write;
int min_encrypted_len_on_read;
uint8_t client_write_MAC_key[SHA256_OUTSIZE];
uint8_t server_write_MAC_key[SHA256_OUTSIZE];
uint8_t client_write_key[AES256_KEYSIZE];
uint8_t server_write_key[AES256_KEYSIZE];
// RFC 5246
// sequence number
// Each connection state contains a sequence number, which is
@ -251,15 +255,13 @@ typedef struct tls_state {
// number MUST be set to zero whenever a connection state is made the
// active state. Sequence numbers are of type uint64 and may not
// exceed 2^64-1.
/*uint64_t read_seq64_be;*/
uint64_t write_seq64_be;
int outbuf_size;
uint8_t *outbuf;
int inbuf_size;
int ofs_to_buffered;
int buffered_size;
uint8_t *inbuf;
uint8_t client_write_MAC_key[SHA256_OUTSIZE];
uint8_t server_write_MAC_key[SHA256_OUTSIZE];
uint8_t client_write_key[AES256_KEYSIZE];
uint8_t server_write_key[AES256_KEYSIZE];
} tls_state_t;