boringssl/crypto/err
David Benjamin 5267ef7b4a Reject unexpected application data in bidirectional shutdown.
Update-Note: This tweaks the SSL_shutdown behavior. OpenSSL's original
SSL_shutdown behavior was an incoherent mix of discarding the record and
rejecting it (it would return SSL_ERROR_SYSCALL but retrying the
operation would discard it). SSLeay appears to have intended to discard
it, so we previously "fixed" it actually discard.

However, this behavior is somewhat bizarre and means we skip over
unbounded data, which we typically try to avoid. If you are trying to
cleanly shutdown the TLS portion of your protocol, surely it is at a
point where additional data is a syntax error. I suspect I originally
did not realize that, because the discarded record did not properly
continue the loop, SSL_shutdown would appear as if it rejected the data,
and so it's unlikely anyone was relying on that behavior.

Discussion in https://github.com/openssl/openssl/pull/6340 suggests
(some of) upstream also prefers rejecting.

Change-Id: Icde419049306ed17eb06ce1a7e1ff587901166f3
Reviewed-on: https://boringssl-review.googlesource.com/28864
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>
2018-06-04 21:39:58 +00:00
..
asn1.errordata Use new encoding functions in ASN1_mbstring_ncopy. 2018-05-11 21:58:47 +00:00
bio.errordata
bn.errordata Update BN_enhanced_miller_rabin_primality_test to enforce preconditions and accept BN_prime_checks. 2017-04-21 22:24:01 +00:00
cipher.errordata Enforce incrementing counter for TLS 1.2 AES-GCM. 2017-05-26 20:06:36 +00:00
CMakeLists.txt
conf.errordata
dh.errordata
digest.errordata
dsa.errordata
ec.errordata Make ECDSA signing 10% faster and plug some timing leaks. 2017-11-22 22:51:40 +00:00
ecdh.errordata
ecdsa.errordata
engine.errordata
err_data_generate.go
err_test.cc Reland "Fix bssl client/server's error-handling." 2018-05-07 17:19:59 +00:00
err.c Add some more compatibility functions. 2018-05-08 20:51:15 +00:00
evp.errordata Implement scrypt from RFC 7914. 2017-06-12 20:32:21 +00:00
hkdf.errordata
internal.h Add the ability to save and restore the error state. 2017-10-09 21:43:13 +00:00
obj.errordata Reimplement OBJ_txt2obj and add a lower-level function. 2017-11-27 21:29:00 +00:00
pem.errordata
pkcs7.errordata
pkcs8.errordata Add PKCS12_create. 2018-05-11 21:59:34 +00:00
rsa.errordata Tweak RSA errors for compatibility. 2018-05-15 23:02:49 +00:00
ssl.errordata Reject unexpected application data in bidirectional shutdown. 2018-06-04 21:39:58 +00:00
x509.errordata
x509v3.errordata