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[mod_openssl] skip cert chain build if self-issued

If cert is self-issued, then do not attempt to build certificate chain.

(Attempting to build certificate chain when chain is not provided, but
 ssl.ca-file is specified, is provided as backward compatible behavior
 from lighttpd versions prior to lighttpd 1.4.56)
master
Glenn Strauss 9 months ago
parent
commit
aa81834bc3
  1. 6
      src/mod_openssl.c

6
src/mod_openssl.c

@ -104,6 +104,7 @@ typedef struct {
time_t ssl_stapling_loadts;
time_t ssl_stapling_nextts;
char must_staple;
char self_issued;
} plugin_cert;
typedef struct {
@ -1084,7 +1085,7 @@ mod_openssl_cert_cb (SSL *ssl, void *arg)
#if !defined(BORINGSSL_API_VERSION) \
&& !defined(LIBRESSL_VERSION_NUMBER)
/* (missing SSL_set1_chain_cert_store() and SSL_build_cert_chain()) */
else if (hctx->conf.ssl_ca_file) {
else if (hctx->conf.ssl_ca_file && !pc->self_issued) {
/* preserve legacy behavior whereby openssl will reuse CAs trusted for
* certificate verification (set by SSL_CTX_load_verify_locations() in
* SSL_CTX) in order to build certificate chain for server certificate
@ -1674,6 +1675,9 @@ network_openssl_load_pemfile (server *srv, const buffer *pemfile, const buffer *
#else
pc->must_staple = 0;
#endif
pc->self_issued =
(0 == X509_NAME_cmp(X509_get_subject_name(ssl_pemfile_x509),
X509_get_issuer_name(ssl_pemfile_x509)));
if (!buffer_string_is_empty(pc->ssl_stapling_file)) {
#ifndef OPENSSL_NO_OCSP

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