Mercurial > hg > nginx-quic
changeset 5395:a720f0b0e083
SSL: adjust buffer used by OpenSSL during handshake (ticket #413).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Fri, 27 Sep 2013 19:39:33 +0400 |
parents | 8c827bb1b2b6 |
children | 42f874c0b970 |
files | src/event/ngx_event_openssl.c src/event/ngx_event_openssl.h |
diffstat | 2 files changed, 27 insertions(+), 0 deletions(-) [+] |
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--- a/src/event/ngx_event_openssl.c +++ b/src/event/ngx_event_openssl.c @@ -521,6 +521,7 @@ ngx_ssl_verify_callback(int ok, X509_STO static void ngx_ssl_info_callback(const ngx_ssl_conn_t *ssl_conn, int where, int ret) { + BIO *rbio, *wbio; ngx_connection_t *c; if (where & SSL_CB_HANDSHAKE_START) { @@ -531,6 +532,31 @@ ngx_ssl_info_callback(const ngx_ssl_conn ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL renegotiation"); } } + + if ((where & SSL_CB_ACCEPT_LOOP) == SSL_CB_ACCEPT_LOOP) { + c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn); + + if (!c->ssl->handshake_buffer_set) { + /* + * By default OpenSSL uses 4k buffer during a handshake, + * which is too low for long certificate chains and might + * result in extra round-trips. + * + * To adjust a buffer size we detect that buffering was added + * to write side of the connection by comparing rbio and wbio. + * If they are different, we assume that it's due to buffering + * added to wbio, and set buffer size. + */ + + rbio = SSL_get_rbio(ssl_conn); + wbio = SSL_get_wbio(ssl_conn); + + if (rbio != wbio) { + (void) BIO_set_write_buffer_size(wbio, NGX_SSL_BUFSIZE); + c->ssl->handshake_buffer_set = 1; + } + } + } }