diff options
| -rw-r--r-- | include/libbb.h | 1 | ||||
| -rw-r--r-- | networking/tls.c | 27 |
2 files changed, 12 insertions, 16 deletions
diff --git a/include/libbb.h b/include/libbb.h index 883457c..ebd090e 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -752,7 +752,6 @@ typedef struct tls_state { unsigned min_encrypted_len_on_read; uint16_t cipher_id; - uint8_t encrypt_on_write; unsigned MAC_size; unsigned key_size; unsigned IV_size; diff --git a/networking/tls.c b/networking/tls.c index 149f55e..9b4298d 100644 --- a/networking/tls.c +++ b/networking/tls.c @@ -267,6 +267,7 @@ enum { GOT_CERT_ECDSA_KEY_ALG = 1 << 2, // so far unused GOT_EC_KEY = 1 << 3, ENCRYPTION_AESGCM = 1 << 4, // else AES-SHA (or NULL-SHA if CIPHER_ID1 set to allow one) + ENCRYPT_ON_WRITE = 1 << 5, }; struct record_hdr { @@ -299,6 +300,13 @@ static unsigned get24be(const uint8_t *p) } #if TLS_DEBUG +/* Nondestructively see the current hash value */ +static unsigned sha_peek(md5sha_ctx_t *ctx, void *buffer) +{ + md5sha_ctx_t ctx_copy = *ctx; /* struct copy */ + return sha_end(&ctx_copy, buffer); +} + static void dump_hex(const char *fmt, const void *vp, int len) { char hexbuf[32 * 1024 + 4]; @@ -372,18 +380,6 @@ void FAST_FUNC xorbuf_aligned_AES_BLOCK_SIZE(void *dst, const void *src) #endif } -/* Nondestructively see the current hash value */ -static unsigned sha_peek(md5sha_ctx_t *ctx, void *buffer) -{ - md5sha_ctx_t ctx_copy = *ctx; /* struct copy */ - return sha_end(&ctx_copy, buffer); -} - -static ALWAYS_INLINE unsigned get_handshake_hash(tls_state_t *tls, void *buffer) -{ - return sha_peek(&tls->hsd->handshake_hash_ctx, buffer); -} - #if !TLS_DEBUG_HASH # define hash_handshake(tls, fmt, buffer, len) \ hash_handshake(tls, buffer, len) @@ -910,7 +906,7 @@ static void xwrite_handshake_record(tls_state_t *tls, unsigned size) static void xwrite_and_update_handshake_hash(tls_state_t *tls, unsigned size) { - if (!tls->encrypt_on_write) { + if (!(tls->flags & ENCRYPT_ON_WRITE)) { uint8_t *buf; xwrite_handshake_record(tls, size); @@ -2032,7 +2028,8 @@ static void send_client_finished(tls_state_t *tls) fill_handshake_record_hdr(record, HANDSHAKE_FINISHED, sizeof(*record)); - len = get_handshake_hash(tls, handshake_hash); + len = sha_end(&tls->hsd->handshake_hash_ctx, handshake_hash); + prf_hmac_sha256(/*tls,*/ record->prf_result, sizeof(record->prf_result), tls->hsd->master_secret, sizeof(tls->hsd->master_secret), @@ -2137,7 +2134,7 @@ void FAST_FUNC tls_handshake(tls_state_t *tls, const char *sni) send_change_cipher_spec(tls); /* from now on we should send encrypted */ /* tls->write_seq64_be = 0; - already is */ - tls->encrypt_on_write = 1; + tls->flags |= ENCRYPT_ON_WRITE; send_client_finished(tls); |