Mercurial > hg > nginx
changeset 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 | 2f443cac3f1e |
| children | eb6c77e6d55d |
| files | src/http/modules/ngx_http_ssl_module.c src/http/ngx_http.c src/http/ngx_http_request.c src/http/v2/ngx_http_v2.h |
| diffstat | 4 files changed, 9 insertions(+), 72 deletions(-) [+] |
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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)
--- a/src/http/ngx_http.c +++ b/src/http/ngx_http.c @@ -1338,13 +1338,12 @@ ngx_http_add_address(ngx_conf_t *cf, ngx } #if (NGX_HTTP_V2 && NGX_HTTP_SSL \ - && !defined TLSEXT_TYPE_application_layer_protocol_negotiation \ - && !defined TLSEXT_TYPE_next_proto_neg) + && !defined TLSEXT_TYPE_application_layer_protocol_negotiation) if (lsopt->http2 && lsopt->ssl) { ngx_conf_log_error(NGX_LOG_WARN, cf, 0, "nginx was built with OpenSSL that lacks ALPN " - "and NPN support, HTTP/2 is not enabled for %V", + "support, HTTP/2 is not enabled for %V", &lsopt->addr_text); }
--- a/src/http/ngx_http_request.c +++ b/src/http/ngx_http_request.c @@ -806,8 +806,7 @@ ngx_http_ssl_handshake_handler(ngx_conne c->ssl->no_wait_shutdown = 1; #if (NGX_HTTP_V2 \ - && (defined TLSEXT_TYPE_application_layer_protocol_negotiation \ - || defined TLSEXT_TYPE_next_proto_neg)) + && defined TLSEXT_TYPE_application_layer_protocol_negotiation) { unsigned int len; const unsigned char *data; @@ -817,19 +816,8 @@ ngx_http_ssl_handshake_handler(ngx_conne if (hc->addr_conf->http2) { -#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation SSL_get0_alpn_selected(c->ssl->connection, &data, &len); -#ifdef TLSEXT_TYPE_next_proto_neg - if (len == 0) { - SSL_get0_next_proto_negotiated(c->ssl->connection, &data, &len); - } -#endif - -#else /* TLSEXT_TYPE_next_proto_neg */ - SSL_get0_next_proto_negotiated(c->ssl->connection, &data, &len); -#endif - if (len == 2 && data[0] == 'h' && data[1] == '2') { ngx_http_v2_init(c->read); return;