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[216.105.38.7]) by mx.google.com with ESMTPS id x19-20020a056638161300b00412d3d6440csi7055006jas.158.2023.05.24.06.25.43 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 24 May 2023 06:25:44 -0700 (PDT) Received-SPF: pass (google.com: domain of openvpn-devel-bounces@lists.sourceforge.net designates 216.105.38.7 as permitted sender) client-ip=216.105.38.7; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@sourceforge.net header.s=x header.b=EpxDE0iN; dkim=neutral (body hash did not verify) header.i=@sf.net header.s=x header.b=GxetHpVs; spf=pass (google.com: domain of openvpn-devel-bounces@lists.sourceforge.net designates 216.105.38.7 as permitted sender) smtp.mailfrom=openvpn-devel-bounces@lists.sourceforge.net Received: from [127.0.0.1] (helo=sfs-ml-1.v29.lw.sourceforge.com) by sfs-ml-1.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1q1oTt-0002kP-BC; Wed, 24 May 2023 13:24:46 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-1.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1q1oTr-0002k5-Ai for openvpn-devel@lists.sourceforge.net; Wed, 24 May 2023 13:24:44 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:Message-Id: Date:Subject:To:From:Sender:Reply-To:Cc:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=XkAVAF0cYy+GcnUwmvBFsSVob63xXXeSjDQwfHs/2fQ=; b=EpxDE0iNSQEeGCccNFqW9FS6a0 0+3IImbBevO4T1O5nt1Ufo3bzpYbXHLdhCz7kOwWN2fFcCxnku7D8gGB+j7c3OfiIn9G7E0AzX5an 9xVGi/zmulq3bkLaWyZTgGH2bTCzgze/iF/RgQ0uXp+HgGAJ6XdPZ/U5YVz88nJUwxuk=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject:To:From: Sender:Reply-To:Cc:Content-Type:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post: List-Owner:List-Archive; bh=XkAVAF0cYy+GcnUwmvBFsSVob63xXXeSjDQwfHs/2fQ=; b=G xetHpVsHB+98AvCnXGzEViK/Z9pz6gT5Vt15hTAN4K37cIZZ9riHJTrk/NkTI1jHGOWj6c75ECoQI fIpUorUFVURwLYmc1dVKm1D/s7IhbRQio2XDoV9zuYwB6DotXeWQbMsdA3ksUouikdWHIRxMX60b/ gTYuHttVYf9nOhfc=; Received: from mail.blinkt.de ([192.26.174.232]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1q1oTm-0001LK-QD for openvpn-devel@lists.sourceforge.net; Wed, 24 May 2023 13:24:42 +0000 Received: from kamera.blinkt.de ([2001:638:502:390:20c:29ff:fec8:535c]) by mail.blinkt.de with smtp (Exim 4.95 (FreeBSD)) (envelope-from ) id 1q1oTY-000GTS-Hh for openvpn-devel@lists.sourceforge.net; Wed, 24 May 2023 15:24:24 +0200 Received: (nullmailer pid 3098521 invoked by uid 10006); Wed, 24 May 2023 13:24:24 -0000 From: Arne Schwabe To: openvpn-devel@lists.sourceforge.net Date: Wed, 24 May 2023 15:24:23 +0200 Message-Id: <20230524132424.3098475-1-arne@rfc2549.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Spam-Score: 0.3 (/) X-Spam-Report: Spam detection software, running on the system "util-spamd-1.v13.lw.sourceforge.com", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: This reverts commit 423ced962db3129b4ed551c489624faba4340652, which has Jason A. Donenfeld listed as author as the patch was based on his initial submission. We have not received permission to relicense the original patch. Content analysis details: (0.3 points, 6.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_NONE SPF: sender does not publish an SPF Record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.2 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different X-Headers-End: 1q1oTm-0001LK-QD Subject: [Openvpn-devel] [PATCH 1/2] Revert commit 423ced962d X-BeenThere: openvpn-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: openvpn-devel-bounces@lists.sourceforge.net X-getmail-retrieved-from-mailbox: Inbox X-GMAIL-THRID: =?utf-8?q?1766782134713681472?= X-GMAIL-MSGID: =?utf-8?q?1766782134713681472?= This reverts commit 423ced962db3129b4ed551c489624faba4340652, which has Jason A. Donenfeld listed as author as the patch was based on his initial submission. We have not received permission to relicense the original patch. Change-Id: I8142753928498169032450c56d0497a5042bdc9b Signed-off-by: Arne Schwabe Acked-by: Gert Doering --- src/openvpn/init.c | 1 - src/openvpn/options.c | 26 +++++++++++++------------- src/openvpn/options.h | 1 - src/openvpn/ssl_common.h | 1 - src/openvpn/ssl_verify_mbedtls.c | 16 ---------------- src/openvpn/ssl_verify_openssl.c | 2 +- 6 files changed, 14 insertions(+), 33 deletions(-) diff --git a/src/openvpn/init.c b/src/openvpn/init.c index d358ad003..c023b33c6 100644 --- a/src/openvpn/init.c +++ b/src/openvpn/init.c @@ -3347,7 +3347,6 @@ do_init_crypto_tls(struct context *c, const unsigned int flags) to.verify_hash = options->verify_hash; to.verify_hash_algo = options->verify_hash_algo; to.verify_hash_depth = options->verify_hash_depth; - to.verify_hash_no_ca = options->verify_hash_no_ca; #ifdef ENABLE_X509ALTUSERNAME memcpy(to.x509_username_field, options->x509_username_field, sizeof(to.x509_username_field)); #else diff --git a/src/openvpn/options.c b/src/openvpn/options.c index e4c596b89..fe9285384 100644 --- a/src/openvpn/options.c +++ b/src/openvpn/options.c @@ -2991,11 +2991,21 @@ options_postprocess_verify_ce(const struct options *options, else { #ifdef ENABLE_CRYPTO_MBEDTLS + if (!(options->ca_file)) + { + msg(M_USAGE, "You must define CA file (--ca)"); + } + if (options->ca_path) { msg(M_USAGE, "Parameter --capath cannot be used with the mbed TLS version version of OpenVPN."); } -#endif /* ifdef ENABLE_CRYPTO_MBEDTLS */ +#else /* ifdef ENABLE_CRYPTO_MBEDTLS */ + if ((!(options->ca_file)) && (!(options->ca_path))) + { + msg(M_USAGE, "You must define CA file (--ca) or CA path (--capath)"); + } +#endif if (pull) { @@ -3727,13 +3737,6 @@ options_postprocess_mutate(struct options *o, struct env_set *es) options_postprocess_http_proxy_override(o); } #endif - if (!o->ca_file && !o->ca_path && o->verify_hash - && o->verify_hash_depth == 0) - { - msg(M_INFO, "Using certificate fingerprint to verify peer (no CA " - "option set). "); - o->verify_hash_no_ca = true; - } if (o->config && streq(o->config, "stdin") && o->remap_sigusr1 == SIGHUP) { @@ -4029,11 +4032,8 @@ options_postprocess_filechecks(struct options *options) errs |= check_file_access_inline(options->dh_file_inline, CHKACC_FILE, options->dh_file, R_OK, "--dh"); - if (!options->verify_hash_no_ca) - { - errs |= check_file_access_inline(options->ca_file_inline, CHKACC_FILE, - options->ca_file, R_OK, "--ca"); - } + errs |= check_file_access_inline(options->ca_file_inline, CHKACC_FILE, + options->ca_file, R_OK, "--ca"); errs |= check_file_access_chroot(options->chroot_dir, CHKACC_FILE, options->ca_path, R_OK, "--capath"); diff --git a/src/openvpn/options.h b/src/openvpn/options.h index f5890b90f..95f1158a4 100644 --- a/src/openvpn/options.h +++ b/src/openvpn/options.h @@ -604,7 +604,6 @@ struct options struct verify_hash_list *verify_hash; hash_algo_type verify_hash_algo; int verify_hash_depth; - bool verify_hash_no_ca; unsigned int ssl_flags; /* set to SSLF_x flags from ssl.h */ #ifdef ENABLE_PKCS11 diff --git a/src/openvpn/ssl_common.h b/src/openvpn/ssl_common.h index 27b029479..c0b3caa71 100644 --- a/src/openvpn/ssl_common.h +++ b/src/openvpn/ssl_common.h @@ -345,7 +345,6 @@ struct tls_options const char *remote_cert_eku; struct verify_hash_list *verify_hash; int verify_hash_depth; - bool verify_hash_no_ca; hash_algo_type verify_hash_algo; #ifdef ENABLE_X509ALTUSERNAME char *x509_username_field[MAX_PARMS]; diff --git a/src/openvpn/ssl_verify_mbedtls.c b/src/openvpn/ssl_verify_mbedtls.c index e3437f740..c9ef7a171 100644 --- a/src/openvpn/ssl_verify_mbedtls.c +++ b/src/openvpn/ssl_verify_mbedtls.c @@ -62,22 +62,6 @@ verify_callback(void *session_obj, mbedtls_x509_crt *cert, int cert_depth, struct buffer cert_fingerprint = x509_get_sha256_fingerprint(cert, &gc); cert_hash_remember(session, cert_depth, &cert_fingerprint); - if (session->opt->verify_hash_no_ca) - { - /* - * If we decide to verify the peer certificate based on the fingerprint - * we ignore wrong dates and the certificate not being trusted. - * Any other problem with the certificate (wrong key, bad cert,...) - * will still trigger an error. - * Clearing these flags relies on verify_cert will later rejecting a - * certificate that has no matching fingerprint. - */ - uint32_t flags_ignore = MBEDTLS_X509_BADCERT_NOT_TRUSTED - | MBEDTLS_X509_BADCERT_EXPIRED - | MBEDTLS_X509_BADCERT_FUTURE; - *flags = *flags & ~flags_ignore; - } - /* did peer present cert which was signed by our root cert? */ if (*flags != 0) { diff --git a/src/openvpn/ssl_verify_openssl.c b/src/openvpn/ssl_verify_openssl.c index e24ce4e4a..ac36f09db 100644 --- a/src/openvpn/ssl_verify_openssl.c +++ b/src/openvpn/ssl_verify_openssl.c @@ -67,7 +67,7 @@ verify_callback(int preverify_ok, X509_STORE_CTX *ctx) cert_hash_remember(session, X509_STORE_CTX_get_error_depth(ctx), &cert_hash); /* did peer present cert which was signed by our root cert? */ - if (!preverify_ok && !session->opt->verify_hash_no_ca) + if (!preverify_ok) { /* get the X509 name */ char *subject = x509_get_subject(current_cert, &gc); From patchwork Wed May 24 13:24:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arne Schwabe X-Patchwork-Id: 3238 Return-Path: Delivered-To: patchwork@openvpn.net Received: by 2002:a05:7300:7b9a:b0:c3:1364:a2a2 with SMTP id j26csp2980887dyk; Wed, 24 May 2023 06:25:45 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ6Hl3v4E6Pz4P2DYvLs36ScO5LiUHEQ3mGJlAZRcsyyvz6F8sX6a/zGEFnVArLrmHPmO/bu X-Received: by 2002:a6b:db07:0:b0:774:9394:b473 with SMTP id t7-20020a6bdb07000000b007749394b473mr1158290ioc.7.1684934745502; Wed, 24 May 2023 06:25:45 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1684934745; cv=none; d=google.com; s=arc-20160816; b=skfkWt/Mw47ijSMudQWT9wVMb5zmNIzyl7qFV1HlFDNqLDJpLzAlLXg/yEN5sim26Z 3rg3XSGwCksDDqdEY3L8RY1XyhKvzrtNYt+6FUXG1J5rqF9qKD1cAwtsazSLGuyfsZuH 21oRG0suakHwjBd3MGgISJHcyq9gw/ci6Q0tsH6AgJAK0LNBm4/1lZhzc6aEINBIcnG8 oQ2pKsd04PUGmAbYb1mhNboovhO8wMcLc4vddOhcWVK0pj4hFRtgoU1SAADOxG9C+TA9 cb2/rjOhp3yiamC78yHlh6TKKZxEbbEga9YZyZ/BL+FKVniQKOE/cp74Cg1hZR1TARgc mDjA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=errors-to:content-transfer-encoding:list-subscribe:list-help :list-post:list-archive:list-unsubscribe:list-id:precedence:subject :mime-version:references:in-reply-to:message-id:date:to:from :dkim-signature:dkim-signature; bh=Nbvf85Z+1wE3DqWeQK5+/jqz7/vtC1oUPg62YL/1L7w=; b=g5yXZBpGaGTPtxgwD7McYZjUjCy5QeYnYrWAiXh/FV8EmA/VmO3xQRs/WGESMmT96z nT8kJBDyP6rYucwwultX9VSTCkQarhnVKj3p+cardaBI5PmefqbNHQCJoFwyDPFMHSzx NUZNRbo/6fBylMnJq9FWU6m9jRFKOWEba2jbSpQKdZGZ0PuL1h6l28shkYCdB5km5Rnw XT8ew1JjPxMEm64oVHUVy95GgQGUJmyUHqWNASzg8DHx8fwBUuE+I4X+aoPhBBxabOmK oKzifvbCJE6RzGGgY0NIZK37lkanoXW5G4sAlfm/Ddz/ug9rHjHMKR5lZFdtq5UdVAH8 /QcA== ARC-Authentication-Results: i=1; mx.google.com; dkim=neutral (body hash did not verify) header.i=@sourceforge.net header.s=x header.b="BG/zkCMJ"; dkim=neutral (body hash did not verify) header.i=@sf.net header.s=x header.b=bLkfpWrp; spf=pass (google.com: domain of openvpn-devel-bounces@lists.sourceforge.net designates 216.105.38.7 as permitted sender) smtp.mailfrom=openvpn-devel-bounces@lists.sourceforge.net Received: from lists.sourceforge.net (lists.sourceforge.net. 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The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: This is implements --peer-fingerprint command to support OpenVPN authentication without involving a PKI. The current implementation in OpenVPN for peer fingerprint has been already extensively rewritten from the original submission from Jason [1]. The commit preserved the original author since it was bas [...] Content analysis details: (0.2 points, 6.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.2 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different 0.0 SPF_NONE SPF: sender does not publish an SPF Record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 T_SCC_BODY_TEXT_LINE No description available. X-Headers-End: 1q1oTl-001OFX-EP Subject: [Openvpn-devel] [PATCH 2/2] Implement using --peer-fingerprint without CA certificates X-BeenThere: openvpn-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: openvpn-devel-bounces@lists.sourceforge.net X-getmail-retrieved-from-mailbox: Inbox X-GMAIL-THRID: =?utf-8?q?1766782135567897156?= X-GMAIL-MSGID: =?utf-8?q?1766782135567897156?= This is implements --peer-fingerprint command to support OpenVPN authentication without involving a PKI. The current implementation in OpenVPN for peer fingerprint has been already extensively rewritten from the original submission from Jason [1]. The commit preserved the original author since it was based on Jason code/idea. The current code uses two commits to prepare the --peer-fingerprint solution as which choose to use a simple to use --peer-fingerprint directive instead of using using a --tls-verify script like the v1 of the patch proposed. The two commit preparing this are: - Extend verify-hash to allow multiple hashes - Implement peer-fingerprint to check fingerprint of peer certificate This perparing patches make this actual patch quite short. There are some lines in this patch that bear some similarity to the ones like if (!preverify_ok && !session->opt->verify_hash_no_ca) vs if (!preverify_ok && !session->opt->ca_file_none) But these similarities are one line fragments and dictated by the surrounding style and program flow, so even a complete black box implementation will likely end up with the same lines. [1] https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg16781.html Change-Id: Ie74c3d606c5429455c293c367462244566a936e3 Signed-off-by: Arne Schwabe Acked-by: Gert Doering --- src/openvpn/init.c | 1 + src/openvpn/options.c | 26 +++++++++++++------------- src/openvpn/options.h | 1 + src/openvpn/ssl_common.h | 1 + src/openvpn/ssl_verify_mbedtls.c | 16 ++++++++++++++++ src/openvpn/ssl_verify_openssl.c | 2 +- 6 files changed, 33 insertions(+), 14 deletions(-) diff --git a/src/openvpn/init.c b/src/openvpn/init.c index c023b33c6..d358ad003 100644 --- a/src/openvpn/init.c +++ b/src/openvpn/init.c @@ -3347,6 +3347,7 @@ do_init_crypto_tls(struct context *c, const unsigned int flags) to.verify_hash = options->verify_hash; to.verify_hash_algo = options->verify_hash_algo; to.verify_hash_depth = options->verify_hash_depth; + to.verify_hash_no_ca = options->verify_hash_no_ca; #ifdef ENABLE_X509ALTUSERNAME memcpy(to.x509_username_field, options->x509_username_field, sizeof(to.x509_username_field)); #else diff --git a/src/openvpn/options.c b/src/openvpn/options.c index fe9285384..e4c596b89 100644 --- a/src/openvpn/options.c +++ b/src/openvpn/options.c @@ -2991,21 +2991,11 @@ options_postprocess_verify_ce(const struct options *options, else { #ifdef ENABLE_CRYPTO_MBEDTLS - if (!(options->ca_file)) - { - msg(M_USAGE, "You must define CA file (--ca)"); - } - if (options->ca_path) { msg(M_USAGE, "Parameter --capath cannot be used with the mbed TLS version version of OpenVPN."); } -#else /* ifdef ENABLE_CRYPTO_MBEDTLS */ - if ((!(options->ca_file)) && (!(options->ca_path))) - { - msg(M_USAGE, "You must define CA file (--ca) or CA path (--capath)"); - } -#endif +#endif /* ifdef ENABLE_CRYPTO_MBEDTLS */ if (pull) { @@ -3737,6 +3727,13 @@ options_postprocess_mutate(struct options *o, struct env_set *es) options_postprocess_http_proxy_override(o); } #endif + if (!o->ca_file && !o->ca_path && o->verify_hash + && o->verify_hash_depth == 0) + { + msg(M_INFO, "Using certificate fingerprint to verify peer (no CA " + "option set). "); + o->verify_hash_no_ca = true; + } if (o->config && streq(o->config, "stdin") && o->remap_sigusr1 == SIGHUP) { @@ -4032,8 +4029,11 @@ options_postprocess_filechecks(struct options *options) errs |= check_file_access_inline(options->dh_file_inline, CHKACC_FILE, options->dh_file, R_OK, "--dh"); - errs |= check_file_access_inline(options->ca_file_inline, CHKACC_FILE, - options->ca_file, R_OK, "--ca"); + if (!options->verify_hash_no_ca) + { + errs |= check_file_access_inline(options->ca_file_inline, CHKACC_FILE, + options->ca_file, R_OK, "--ca"); + } errs |= check_file_access_chroot(options->chroot_dir, CHKACC_FILE, options->ca_path, R_OK, "--capath"); diff --git a/src/openvpn/options.h b/src/openvpn/options.h index 95f1158a4..f5890b90f 100644 --- a/src/openvpn/options.h +++ b/src/openvpn/options.h @@ -604,6 +604,7 @@ struct options struct verify_hash_list *verify_hash; hash_algo_type verify_hash_algo; int verify_hash_depth; + bool verify_hash_no_ca; unsigned int ssl_flags; /* set to SSLF_x flags from ssl.h */ #ifdef ENABLE_PKCS11 diff --git a/src/openvpn/ssl_common.h b/src/openvpn/ssl_common.h index c0b3caa71..27b029479 100644 --- a/src/openvpn/ssl_common.h +++ b/src/openvpn/ssl_common.h @@ -345,6 +345,7 @@ struct tls_options const char *remote_cert_eku; struct verify_hash_list *verify_hash; int verify_hash_depth; + bool verify_hash_no_ca; hash_algo_type verify_hash_algo; #ifdef ENABLE_X509ALTUSERNAME char *x509_username_field[MAX_PARMS]; diff --git a/src/openvpn/ssl_verify_mbedtls.c b/src/openvpn/ssl_verify_mbedtls.c index c9ef7a171..e3437f740 100644 --- a/src/openvpn/ssl_verify_mbedtls.c +++ b/src/openvpn/ssl_verify_mbedtls.c @@ -62,6 +62,22 @@ verify_callback(void *session_obj, mbedtls_x509_crt *cert, int cert_depth, struct buffer cert_fingerprint = x509_get_sha256_fingerprint(cert, &gc); cert_hash_remember(session, cert_depth, &cert_fingerprint); + if (session->opt->verify_hash_no_ca) + { + /* + * If we decide to verify the peer certificate based on the fingerprint + * we ignore wrong dates and the certificate not being trusted. + * Any other problem with the certificate (wrong key, bad cert,...) + * will still trigger an error. + * Clearing these flags relies on verify_cert will later rejecting a + * certificate that has no matching fingerprint. + */ + uint32_t flags_ignore = MBEDTLS_X509_BADCERT_NOT_TRUSTED + | MBEDTLS_X509_BADCERT_EXPIRED + | MBEDTLS_X509_BADCERT_FUTURE; + *flags = *flags & ~flags_ignore; + } + /* did peer present cert which was signed by our root cert? */ if (*flags != 0) { diff --git a/src/openvpn/ssl_verify_openssl.c b/src/openvpn/ssl_verify_openssl.c index ac36f09db..e24ce4e4a 100644 --- a/src/openvpn/ssl_verify_openssl.c +++ b/src/openvpn/ssl_verify_openssl.c @@ -67,7 +67,7 @@ verify_callback(int preverify_ok, X509_STORE_CTX *ctx) cert_hash_remember(session, X509_STORE_CTX_get_error_depth(ctx), &cert_hash); /* did peer present cert which was signed by our root cert? */ - if (!preverify_ok) + if (!preverify_ok && !session->opt->verify_hash_no_ca) { /* get the X509 name */ char *subject = x509_get_subject(current_cert, &gc);