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* modules/ssl/ssl_engine_init.c (ssl_init_ctx_callbacks,

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ssl_init_server_certs): Flip logic for enabling/disabling DH auto
  parameter selection for OpenSSL 1.1+ to be simpler and consistent
  with auto ECDH curve selection.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1893964 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Joe Orton
2021-10-07 10:17:27 +00:00
parent 34f7c6ed3b
commit e77dffef9a
1 changed files with 9 additions and 7 deletions
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16
modules/ssl/ssl_engine_init.c
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@@ -920,9 +920,9 @@ static void ssl_init_ctx_callbacks(server_rec *s,
SSL_CTX *ctx = mctx->ssl_ctx;
#if MODSSL_USE_OPENSSL_PRE_1_1_API
/* Note that for OpenSSL>=1.1, auto selection is enabled via
* SSL_CTX_set_dh_auto(,1) if no parameter is configured. */
SSL_CTX_set_tmp_dh_callback(ctx, ssl_callback_TmpDH);
#else
SSL_CTX_set_dh_auto(ctx, 1);
#endif
/* The info callback is used for debug-level tracing. For OpenSSL
@@ -1592,16 +1592,18 @@ static apr_status_t ssl_init_server_certs(server_rec *s,
/* ### This should be replaced with SSL_CTX_set0_tmp_dh_pkey()
* for OpenSSL 3.0+. */
SSL_CTX_set_tmp_dh(mctx->ssl_ctx, dh);
#if !MODSSL_USE_OPENSSL_PRE_1_1_API
/* OpenSSL ignores manually configured DH params if automatic
* selection if enabled, so disable auto selection here. */
SSL_CTX_set_dh_auto(mctx->ssl_ctx, 0);
#endif
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(02540)
"Custom DH parameters (%d bits) for %s loaded from %s",
modssl_DH_bits(dh), vhost_id, certfile);
DH_free(dh);
}
#if !MODSSL_USE_OPENSSL_PRE_1_1_API
else {
/* If no parameter is manually configured, enable auto
* selection. */
SSL_CTX_set_dh_auto(mctx->ssl_ctx, 1);
}
#endif
#ifdef HAVE_ECC
/*