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Release handshake buffer when sending no certificate.

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See also upstream's dab18ab596acb35eff2545643e25757e4f9cd777. This allows us to
add an assertion to the finished computation that the handshake buffer has
already been released.

BUG=492371

Change-Id: I8f15c618c8b2c70bfe583c81644d9dbea95519d4
Reviewed-on: https://boringssl-review.googlesource.com/4887
Reviewed-by: Adam Langley <agl@google.com>
This commit is contained in:
David Benjamin 2015-05-26 17:41:50 -04:00 committed by Adam Langley
parent 5f04b6521d
commit e76ccae68b
2 changed files with 12 additions and 0 deletions
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7
ssl/s3_clnt.c
View File

@ -2118,6 +2118,13 @@ int ssl3_send_client_certificate(SSL *s) {
return 1;
} else {
s->s3->tmp.cert_req = 2;
/* There is no client certificate, so the handshake buffer may be
* released. */
if (s->s3->handshake_buffer &&
!ssl3_digest_cached_records(s, free_handshake_buffer)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
return -1;
}
}
}

5
ssl/t1_enc.c
View File

@ -554,6 +554,11 @@ int tls1_final_finish_mac(SSL *s, const char *str, int slen, uint8_t *out) {
int err = 0;
int digests_len;
/* At this point, the handshake should have released the handshake buffer on
* its own.
* TODO(davidben): Apart from initialization, the handshake buffer should be
* orthogonal to the handshake digest. https://crbug.com/492371 */
assert(s->s3->handshake_buffer == NULL);
if (s->s3->handshake_buffer &&
!ssl3_digest_cached_records(s, free_handshake_buffer)) {
return 0;