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diff src/http/modules/ngx_http_quic_module.c @ 8634:831d1960826f quic

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QUIC: generate default stateless reset token key. Previously, if quic_stateless_reset_token_key was empty or unspecified, initial stateless reset token was not generated. However subsequent tokens were generated with empty key, which resulted in error with certain SSL libraries, for example OpenSSL. Now a random 32-byte stateless reset token key is generated if none is specified in the configuration. As a result, stateless reset tokens are now generated for all server ids.
author Roman Arutyunyan <arut@nginx.com>
date Wed, 11 Nov 2020 21:08:48 +0000
parents 279ad36f2f4b
children e1eb7f4ca9f1
line wrap: on
line diff
--- a/src/http/modules/ngx_http_quic_module.c
+++ b/src/http/modules/ngx_http_quic_module.c
@@ -317,6 +317,19 @@ ngx_http_quic_merge_srv_conf(ngx_conf_t 
 
     ngx_conf_merge_str_value(conf->sr_token_key, prev->sr_token_key, "");
 
+    if (conf->sr_token_key.len == 0) {
+        conf->sr_token_key.len = NGX_QUIC_DEFAULT_SRT_KEY_LEN;
+
+        conf->sr_token_key.data = ngx_pnalloc(cf->pool, conf->sr_token_key.len);
+        if (conf->sr_token_key.data == NULL) {
+            return NGX_CONF_ERROR;
+        }
+
+        if (RAND_bytes(conf->sr_token_key.data, conf->sr_token_key.len) <= 0) {
+            return NGX_CONF_ERROR;
+        }
+    }
+
     sscf = ngx_http_conf_get_module_srv_conf(cf, ngx_http_ssl_module);
     conf->ssl = &sscf->ssl;