Mercurial > hg > nginx
diff src/http/modules/ngx_http_ssl_module.c @ 7934:61abb35bb8cf
HTTP/2: removed support for NPN.
NPN was replaced with ALPN, published as RFC 7301 in July 2014.
It used to negotiate SPDY (and, in transition, HTTP/2).
NPN supported appeared in OpenSSL 1.0.1. It does not work with TLSv1.3 [1].
ALPN is supported since OpenSSL 1.0.2.
The NPN support was dropped in Firefox 53 [2] and Chrome 51 [3].
[1] https://github.com/openssl/openssl/issues/3665.
[2] https://bugzilla.mozilla.org/show_bug.cgi?id=1248198
[3] https://www.chromestatus.com/feature/5767920709795840
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Fri, 15 Oct 2021 10:02:15 +0300 |
parents | 419c066cb710 |
children | eb6c77e6d55d |
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--- a/src/http/modules/ngx_http_ssl_module.c +++ b/src/http/modules/ngx_http_ssl_module.c @@ -17,7 +17,7 @@ typedef ngx_int_t (*ngx_ssl_variable_han #define NGX_DEFAULT_CIPHERS "HIGH:!aNULL:!MD5" #define NGX_DEFAULT_ECDH_CURVE "auto" -#define NGX_HTTP_NPN_ADVERTISE "\x08http/1.1" +#define NGX_HTTP_ALPN_PROTO "\x08http/1.1" #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation @@ -26,11 +26,6 @@ static int ngx_http_ssl_alpn_select(ngx_ const unsigned char *in, unsigned int inlen, void *arg); #endif -#ifdef TLSEXT_TYPE_next_proto_neg -static int ngx_http_ssl_npn_advertised(ngx_ssl_conn_t *ssl_conn, - const unsigned char **out, unsigned int *outlen, void *arg); -#endif - static ngx_int_t ngx_http_ssl_static_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); static ngx_int_t ngx_http_ssl_variable(ngx_http_request_t *r, @@ -444,15 +439,14 @@ ngx_http_ssl_alpn_select(ngx_ssl_conn_t hc = c->data; if (hc->addr_conf->http2) { - srv = - (unsigned char *) NGX_HTTP_V2_ALPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE; - srvlen = sizeof(NGX_HTTP_V2_ALPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE) - 1; + srv = (unsigned char *) NGX_HTTP_V2_ALPN_PROTO NGX_HTTP_ALPN_PROTO; + srvlen = sizeof(NGX_HTTP_V2_ALPN_PROTO NGX_HTTP_ALPN_PROTO) - 1; } else #endif { - srv = (unsigned char *) NGX_HTTP_NPN_ADVERTISE; - srvlen = sizeof(NGX_HTTP_NPN_ADVERTISE) - 1; + srv = (unsigned char *) NGX_HTTP_ALPN_PROTO; + srvlen = sizeof(NGX_HTTP_ALPN_PROTO) - 1; } if (SSL_select_next_proto((unsigned char **) out, outlen, srv, srvlen, @@ -471,44 +465,6 @@ ngx_http_ssl_alpn_select(ngx_ssl_conn_t #endif -#ifdef TLSEXT_TYPE_next_proto_neg - -static int -ngx_http_ssl_npn_advertised(ngx_ssl_conn_t *ssl_conn, - const unsigned char **out, unsigned int *outlen, void *arg) -{ -#if (NGX_HTTP_V2 || NGX_DEBUG) - ngx_connection_t *c; - - c = ngx_ssl_get_connection(ssl_conn); - ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "SSL NPN advertised"); -#endif - -#if (NGX_HTTP_V2) - { - ngx_http_connection_t *hc; - - hc = c->data; - - if (hc->addr_conf->http2) { - *out = - (unsigned char *) NGX_HTTP_V2_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE; - *outlen = sizeof(NGX_HTTP_V2_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE) - 1; - - return SSL_TLSEXT_ERR_OK; - } - } -#endif - - *out = (unsigned char *) NGX_HTTP_NPN_ADVERTISE; - *outlen = sizeof(NGX_HTTP_NPN_ADVERTISE) - 1; - - return SSL_TLSEXT_ERR_OK; -} - -#endif - - static ngx_int_t ngx_http_ssl_static_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data) @@ -792,11 +748,6 @@ ngx_http_ssl_merge_srv_conf(ngx_conf_t * SSL_CTX_set_alpn_select_cb(conf->ssl.ctx, ngx_http_ssl_alpn_select, NULL); #endif -#ifdef TLSEXT_TYPE_next_proto_neg - SSL_CTX_set_next_protos_advertised_cb(conf->ssl.ctx, - ngx_http_ssl_npn_advertised, NULL); -#endif - if (ngx_ssl_ciphers(cf, &conf->ssl, &conf->ciphers, conf->prefer_server_ciphers) != NGX_OK)