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SSL: set events ready flags after handshake.

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The c->read->ready and c->write->ready flags might be reset during
the handshake, and not set again if the handshake was finished on
the other event.  At the same time, some data might be read from
the socket during the handshake, so missing c->read->ready flag might
result in a connection hang, for example, when waiting for an SMTP
greeting (which was already received during the handshake).

Found by Sergey Kandaurov.
This commit is contained in:
Maxim Dounin 2021-08-03 20:50:30 +03:00
parent 3985c5bfdc
commit a31869dfaf
1 changed files with 6 additions and 0 deletions
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6
src/event/ngx_event_openssl.c
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@ -1740,6 +1740,9 @@ ngx_ssl_handshake(ngx_connection_t *c)
c->recv_chain = ngx_ssl_recv_chain;
c->send_chain = ngx_ssl_send_chain;
c->read->ready = 1;
c->write->ready = 1;
#ifndef SSL_OP_NO_RENEGOTIATION
#if OPENSSL_VERSION_NUMBER < 0x10100000L
#ifdef SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS
@ -1885,6 +1888,9 @@ ngx_ssl_try_early_data(ngx_connection_t *c)
c->recv_chain = ngx_ssl_recv_chain;
c->send_chain = ngx_ssl_send_chain;
c->read->ready = 1;
c->write->ready = 1;
rc = ngx_ssl_ocsp_validate(c);
if (rc == NGX_ERROR) {