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Support TLS_FALLBACK_SCSV.

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Reviewed-by: Rich Salz <rsalz@openssl.org>
This commit is contained in:
Bodo Moeller
2014-10-15 04:05:42 +02:00
parent 4e05aedbca
commit 6bfe55380a
16 changed files with 141 additions and 26 deletions
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10
apps/s_client.c
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@@ -337,6 +337,7 @@ static void sc_usage(void)
BIO_printf(bio_err," -tls1_1 - just use TLSv1.1\n");
BIO_printf(bio_err," -tls1 - just use TLSv1\n");
BIO_printf(bio_err," -dtls1 - just use DTLSv1\n");
BIO_printf(bio_err," -fallback_scsv - send TLS_FALLBACK_SCSV\n");
BIO_printf(bio_err," -mtu - set the link layer MTU\n");
BIO_printf(bio_err," -no_tls1_2/-no_tls1_1/-no_tls1/-no_ssl3/-no_ssl2 - turn off that protocol\n");
BIO_printf(bio_err," -bugs - Switch on all SSL implementation bug workarounds\n");
@@ -617,6 +618,7 @@ int MAIN(int argc, char **argv)
char *sess_out = NULL;
struct sockaddr peer;
int peerlen = sizeof(peer);
int fallback_scsv = 0;
int enable_timeouts = 0 ;
long socket_mtu = 0;
#ifndef OPENSSL_NO_JPAKE
@@ -823,6 +825,10 @@ int MAIN(int argc, char **argv)
meth=DTLSv1_client_method();
socket_type=SOCK_DGRAM;
}
else if (strcmp(*argv,"-fallback_scsv") == 0)
{
fallback_scsv = 1;
}
else if (strcmp(*argv,"-timeout") == 0)
enable_timeouts=1;
else if (strcmp(*argv,"-mtu") == 0)
@@ -1235,6 +1241,10 @@ bad:
SSL_set_session(con, sess);
SSL_SESSION_free(sess);
}
if (fallback_scsv)
SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
#ifndef OPENSSL_NO_TLSEXT
if (servername != NULL)
{