BoringSSL: Fix session resumption
BoringSSL commit 533ef7304d9b48aad38805f1997031a0a034d7fe ('Remove
SSL_clear calls in handshake functions.') triggered a regression for
EAP-TLS/TTLS/PEAP session resumption in wpa_supplicant due to the
removed SSL_clear() call in ssl3_connect() going away and wpa_supplicant
not calling SSL_clear() after SSL_shutdown(). Fix this by adding the
SSL_clear() call into wpa_supplicant after SSL_shutdown() when preparing
the ssl instance for another connection.
While OpenSSL is still call SSL_clear() in ssl3_connect(), it looks to
be safe to add this call to wpa_supplicant unconditionally.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
diff --git a/src/crypto/tls_openssl.c b/src/crypto/tls_openssl.c
index 2250e6e..db2d73e 100644
--- a/src/crypto/tls_openssl.c
+++ b/src/crypto/tls_openssl.c
@@ -1149,7 +1149,7 @@
* and "close notify" shutdown alert would confuse AS. */
SSL_set_quiet_shutdown(conn->ssl, 1);
SSL_shutdown(conn->ssl);
- return 0;
+ return SSL_clear(conn->ssl) == 1 ? 0 : -1;
}
