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OpenSSL: Add option to disable use of TLSv1.0 

The new phase1 config parameter value tls_disable_tlsv1_0=1 can now be
used to disable use of TLSv1.0 for a network configuration. This can be
used to force a newer TLS version to be used. For example,
phase1="tls_disable_tlsv1_0=1 tls_disable_tlsv1_1=1" would indicate that
only TLS v1.2 is accepted.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2015-07-08 19:25:10 +03:00
parent 2456264fad
commit 5650d379a3
4 changed files with 12 additions and 0 deletions
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1
src/crypto/tls.h
View File

@ -93,6 +93,7 @@ struct tls_config {
#define TLS_CONN_DISABLE_TLSv1_1 BIT(5)
#define TLS_CONN_DISABLE_TLSv1_2 BIT(6)
#define TLS_CONN_EAP_FAST BIT(7)
#define TLS_CONN_DISABLE_TLSv1_0 BIT(8)
/**
* struct tls_connection_params - Parameters for TLS connection

6
src/crypto/tls_openssl.c
View File

@ -3544,6 +3544,12 @@ int tls_connection_set_params(void *tls_ctx, struct tls_connection *conn,
#endif /* SSL_clear_options */
#endif /* SSL_OP_NO_TICKET */
#ifdef SSL_OP_NO_TLSv1
if (params->flags & TLS_CONN_DISABLE_TLSv1_0)
SSL_set_options(conn->ssl, SSL_OP_NO_TLSv1);
else
SSL_clear_options(conn->ssl, SSL_OP_NO_TLSv1);
#endif /* SSL_OP_NO_TLSv1 */
#ifdef SSL_OP_NO_TLSv1_1
if (params->flags & TLS_CONN_DISABLE_TLSv1_1)
SSL_set_options(conn->ssl, SSL_OP_NO_TLSv1_1);

4
src/eap_peer/eap_tls_common.c
View File

@ -68,6 +68,10 @@ static void eap_tls_params_flags(struct tls_connection_params *params,
params->flags |= TLS_CONN_DISABLE_SESSION_TICKET;
if (os_strstr(txt, "tls_disable_session_ticket=0"))
params->flags &= ~TLS_CONN_DISABLE_SESSION_TICKET;
if (os_strstr(txt, "tls_disable_tlsv1_0=1"))
params->flags |= TLS_CONN_DISABLE_TLSv1_0;
if (os_strstr(txt, "tls_disable_tlsv1_0=0"))
params->flags &= ~TLS_CONN_DISABLE_TLSv1_0;
if (os_strstr(txt, "tls_disable_tlsv1_1=1"))
params->flags |= TLS_CONN_DISABLE_TLSv1_1;
if (os_strstr(txt, "tls_disable_tlsv1_1=0"))

1
wpa_supplicant/wpa_supplicant.conf
View File

@ -986,6 +986,7 @@ fast_reauth=1
# EAP workarounds are disabled with eap_workaround=0.
# For EAP-FAST, this must be set to 0 (or left unconfigured for the
# default value to be used automatically).
# tls_disable_tlsv1_0=1 - disable use of TLSv1.0
# tls_disable_tlsv1_1=1 - disable use of TLSv1.1 (a workaround for AAA servers
# that have issues interoperating with updated TLS version)
# tls_disable_tlsv1_2=1 - disable use of TLSv1.2 (a workaround for AAA servers