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From b62d5b5450101676a0c05691b4bcd94e11426397 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Wed, 19 Feb 2014 09:56:02 +0000
Subject: Revert "OpenSSL: Do not accept SSL Client certificate for server"
This reverts commit 51e3eafb68e15e78e98ca955704be8a6c3a7b304. There are
too many deployed AAA servers that include both id-kp-clientAuth and
id-kp-serverAuth EKUs for this change to be acceptable as a generic rule
for AAA authentication server validation. OpenSSL enforces the policy of
not connecting if only id-kp-clientAuth is included. If a valid EKU is
listed with it, the connection needs to be accepted.
Signed-off-by: Jouni Malinen <j@w1.fi>
---
diff --git a/src/crypto/tls.h b/src/crypto/tls.h
index 287fd33..feba13f 100644
--- a/src/crypto/tls.h
+++ b/src/crypto/tls.h
@@ -41,8 +41,7 @@ enum tls_fail_reason {
TLS_FAIL_ALTSUBJECT_MISMATCH = 6,
TLS_FAIL_BAD_CERTIFICATE = 7,
TLS_FAIL_SERVER_CHAIN_PROBE = 8,
- TLS_FAIL_DOMAIN_SUFFIX_MISMATCH = 9,
- TLS_FAIL_SERVER_USED_CLIENT_CERT = 10
+ TLS_FAIL_DOMAIN_SUFFIX_MISMATCH = 9
};
union tls_event_data {
diff --git a/src/crypto/tls_openssl.c b/src/crypto/tls_openssl.c
index a13fa38..8cf1de8 100644
--- a/src/crypto/tls_openssl.c
+++ b/src/crypto/tls_openssl.c
@@ -105,7 +105,6 @@ struct tls_connection {
unsigned int ca_cert_verify:1;
unsigned int cert_probe:1;
unsigned int server_cert_only:1;
- unsigned int server:1;
u8 srv_cert_hash[32];
@@ -1480,16 +1479,6 @@ static int tls_verify_cb(int preverify_ok, X509_STORE_CTX *x509_ctx)
TLS_FAIL_SERVER_CHAIN_PROBE);
}
- if (!conn->server && err_cert && preverify_ok && depth == 0 &&
- (err_cert->ex_flags & EXFLAG_XKUSAGE) &&
- (err_cert->ex_xkusage & XKU_SSL_CLIENT)) {
- wpa_printf(MSG_WARNING, "TLS: Server used client certificate");
- openssl_tls_fail_event(conn, err_cert, err, depth, buf,
- "Server used client certificate",
- TLS_FAIL_SERVER_USED_CLIENT_CERT);
- preverify_ok = 0;
- }
-
if (preverify_ok && context->event_cb != NULL)
context->event_cb(context->cb_ctx,
TLS_CERT_CHAIN_SUCCESS, NULL);
@@ -2541,8 +2530,6 @@ openssl_handshake(struct tls_connection *conn, const struct wpabuf *in_data,
int res;
struct wpabuf *out_data;
- conn->server = !!server;
-
/*
* Give TLS handshake data from the server (if available) to OpenSSL
* for processing.
--
cgit v0.9.2
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