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diff --git a/docs/manual/mod/mod_ssl.html.en b/docs/manual/mod/mod_ssl.html.en
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index ca178ab..4580f1c 100644
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--- a/docs/manual/mod/mod_ssl.html.en
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+++ b/docs/manual/mod/mod_ssl.html.en
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@@ -57,6 +57,7 @@ to provide the cryptography engine.
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SSLCertificateKeyFile
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SSLCipherSuite
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SSLCompression
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+ SSLSessionTickets
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SSLCryptoDevice
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SSLEngine
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SSLFIPS
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@@ -797,6 +798,26 @@ CRIME attack).
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+
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+
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+
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+
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+Description:Enable or disable use of TLS session tickets
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+Syntax:SSLSessionTickets on|off
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+Default:SSLCompression on
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+Context:server config, virtual host
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+Status:Extension
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+Module:mod_ssl
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+Compatibility:Available.
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+
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+This directive allows to enable or disable the use of TLS session tickets(RFC 5077).
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+
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+TLS session tickets are enabled by default. Using them without restarting
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+the web server with an appropriate frequency (e.g. daily) compromises perfect
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+forward secrecy.
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+
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+
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+
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diff --git a/modules/ssl/mod_ssl.c b/modules/ssl/mod_ssl.c
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index bbe1d20..4a8b661 100644
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--- a/modules/ssl/mod_ssl.c
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+++ b/modules/ssl/mod_ssl.c
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@@ -141,6 +141,9 @@ static const command_rec ssl_config_cmds[] = {
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SSL_CMD_SRV(Compression, FLAG,
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"Enable SSL level compression"
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"(`on', `off')")
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+ SSL_CMD_SRV(SessionTickets, FLAG,
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+ "Enable or disable TLS session tickets"
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+ "(`on', `off')")
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SSL_CMD_SRV(InsecureRenegotiation, FLAG,
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"Enable support for insecure renegotiation")
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SSL_CMD_ALL(UserName, TAKE1,
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diff --git a/modules/ssl/ssl_engine_config.c b/modules/ssl/ssl_engine_config.c
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index 9530fcc..86a7f0f 100644
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--- a/modules/ssl/ssl_engine_config.c
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+++ b/modules/ssl/ssl_engine_config.c
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@@ -216,6 +216,7 @@ static SSLSrvConfigRec *ssl_config_server_new(apr_pool_t *p)
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#ifndef OPENSSL_NO_COMP
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sc->compression = UNSET;
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#endif
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+ sc->session_tickets = UNSET;
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modssl_ctx_init_proxy(sc, p);
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@@ -346,6 +347,7 @@ void *ssl_config_server_merge(apr_pool_t *p, void *basev, void *addv)
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#ifndef OPENSSL_NO_COMP
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cfgMergeBool(compression);
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#endif
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+ cfgMergeBool(session_tickets);
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modssl_ctx_cfg_merge_proxy(base->proxy, add->proxy, mrg->proxy);
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@@ -720,6 +722,17 @@ const char *ssl_cmd_SSLHonorCipherOrder(cmd_parms *cmd, void *dcfg, int flag)
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#endif
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}
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+const char *ssl_cmd_SSLSessionTickets(cmd_parms *cmd, void *dcfg, int flag)
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+{
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+ SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
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+#ifndef SSL_OP_NO_TICKET
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+ return "This version of OpenSSL does not support using "
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+ "SSLSessionTickets.";
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+#endif
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+ sc->session_tickets = flag ? TRUE : FALSE;
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+ return NULL;
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+}
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+
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const char *ssl_cmd_SSLInsecureRenegotiation(cmd_parms *cmd, void *dcfg, int flag)
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{
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#ifdef SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
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diff --git a/modules/ssl/ssl_engine_init.c b/modules/ssl/ssl_engine_init.c
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index 568627f..672760c 100644
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--- a/modules/ssl/ssl_engine_init.c
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+++ b/modules/ssl/ssl_engine_init.c
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@@ -566,6 +566,16 @@ static void ssl_init_ctx_protocol(server_rec *s,
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}
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#endif
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+#ifdef SSL_OP_NO_TICKET
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+ /*
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+ * Configure using RFC 5077 TLS session tickets
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+ * for session resumption.
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+ */
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+ if (sc->session_tickets == FALSE) {
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+ SSL_CTX_set_options(ctx, SSL_OP_NO_TICKET);
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+ }
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+#endif
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+
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#ifdef SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
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if (sc->insecure_reneg == TRUE) {
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SSL_CTX_set_options(ctx, SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION);
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diff --git a/modules/ssl/ssl_private.h b/modules/ssl/ssl_private.h
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index 0cc6d3f..b601316 100644
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--- a/modules/ssl/ssl_private.h
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+++ b/modules/ssl/ssl_private.h
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@@ -701,6 +701,7 @@ struct SSLSrvConfigRec {
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#ifndef OPENSSL_NO_COMP
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BOOL compression;
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#endif
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+ BOOL session_tickets;
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};
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/**
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@@ -756,6 +757,7 @@ const char *ssl_cmd_SSLCARevocationFile(cmd_parms *, void *, const char *);
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const char *ssl_cmd_SSLCARevocationCheck(cmd_parms *, void *, const char *);
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const char *ssl_cmd_SSLHonorCipherOrder(cmd_parms *cmd, void *dcfg, int flag);
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const char *ssl_cmd_SSLCompression(cmd_parms *, void *, int flag);
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+const char *ssl_cmd_SSLSessionTickets(cmd_parms *, void *, int flag);
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const char *ssl_cmd_SSLVerifyClient(cmd_parms *, void *, const char *);
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const char *ssl_cmd_SSLVerifyDepth(cmd_parms *, void *, const char *);
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const char *ssl_cmd_SSLSessionCache(cmd_parms *, void *, const char *);
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