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QUIC: connections with wrong ALPN protocols are now rejected.

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Previously, it was not enforced in the stream module.
Now, since b9e02e9b2f1d it is possible to specify protocols.

Since ALPN is always required, the 'require_alpn' setting is now obsolete.
This commit is contained in:
Vladimir Homutov 2021-11-03 13:36:21 +03:00
parent 5f9c4e15a3
commit 0572c2a69f
4 changed files with 13 additions and 15 deletions
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1
src/event/quic/ngx_event_quic.h
View File

@ -60,7 +60,6 @@ typedef struct {
ngx_quic_tp_t tp;
ngx_flag_t retry;
ngx_flag_t gso_enabled;
ngx_flag_t require_alpn;
ngx_str_t host_key;
u_char av_token_key[NGX_QUIC_AV_KEY_LEN];
u_char sr_token_key[NGX_QUIC_SR_KEY_LEN];

25
src/event/quic/ngx_event_quic_ssl.c
View File

@ -175,6 +175,10 @@ ngx_quic_add_handshake_data(ngx_ssl_conn_t *ssl_conn,
ngx_connection_t *c;
ngx_quic_send_ctx_t *ctx;
ngx_quic_connection_t *qc;
#if defined(TLSEXT_TYPE_application_layer_protocol_negotiation)
unsigned int alpn_len;
const unsigned char *alpn_data;
#endif
c = ngx_ssl_get_connection((ngx_ssl_conn_t *) ssl_conn);
qc = ngx_quic_get_connection(c);
@ -190,21 +194,18 @@ ngx_quic_add_handshake_data(ngx_ssl_conn_t *ssl_conn,
*/
#if defined(TLSEXT_TYPE_application_layer_protocol_negotiation)
if (qc->conf->require_alpn) {
unsigned int len;
const unsigned char *data;
SSL_get0_alpn_selected(ssl_conn, &data, &len);
SSL_get0_alpn_selected(ssl_conn, &alpn_data, &alpn_len);
if (len == 0) {
qc->error = 0x100 + SSL_AD_NO_APPLICATION_PROTOCOL;
qc->error_reason = "unsupported protocol in ALPN extension";
if (alpn_len == 0) {
qc->error = 0x100 + SSL_AD_NO_APPLICATION_PROTOCOL;
qc->error_reason = "unsupported protocol in ALPN extension";
ngx_log_error(NGX_LOG_INFO, c->log, 0,
"quic unsupported protocol in ALPN extension");
return 0;
}
ngx_log_error(NGX_LOG_INFO, c->log, 0,
"quic unsupported protocol in ALPN extension");
return 0;
}
}
#endif
SSL_get_peer_quic_transport_params(ssl_conn, &client_params,

1
src/http/modules/ngx_http_quic_module.c
View File

@ -331,7 +331,6 @@ ngx_http_quic_create_srv_conf(ngx_conf_t *cf)
conf->retry = NGX_CONF_UNSET;
conf->gso_enabled = NGX_CONF_UNSET;
conf->require_alpn = 1;
return conf;
}

1
src/stream/ngx_stream_quic_module.c
View File

@ -241,7 +241,6 @@ ngx_stream_quic_create_srv_conf(ngx_conf_t *cf)
* conf->tp.retry_scid = { 0, NULL };
* conf->tp.preferred_address = NULL
* conf->host_key = { 0, NULL }
* conf->require_alpn = 0;
*/
conf->tp.max_idle_timeout = NGX_CONF_UNSET_MSEC;