Allow setting enabled TLS versions in Sofia-SIP

Previously if the TPTAG_TLS_VERSION was set to a non-zero value we
supported only TLSv1 (but not TLSv1.1 or TLSv1.2), and if was set to
zero we supported all versions of TLS and SSL (including the
ridiculous SSLv2).

Now we take an integer field where various bits can be set indicating
which versions of TLS we would like to support.
This commit is contained in:
Travis Cross 2014-02-06 00:18:05 +00:00
parent fd0d91c2b6
commit e3b353e911
2 changed files with 25 additions and 21 deletions

View File

@ -180,6 +180,14 @@ TPORT_DLL extern tag_typedef_t tptag_certificate;
TPORT_DLL extern tag_typedef_t tptag_certificate_ref;
#define TPTAG_CERTIFICATE_REF(x) tptag_certificate_ref, tag_str_vr(&(x))
enum tport_tls_version {
TPTLS_VERSION_SSLv2 = (1 << 0),
TPTLS_VERSION_SSLv3 = (1 << 1),
TPTLS_VERSION_TLSv1 = (1 << 2),
TPTLS_VERSION_TLSv1_1 = (1 << 3),
TPTLS_VERSION_TLSv1_2 = (1 << 4),
};
TPORT_DLL extern tag_typedef_t tptag_tls_version;
#define TPTAG_TLS_VERSION(x) tptag_tls_version, tag_uint_v((x))

View File

@ -295,27 +295,23 @@ int tls_init_context(tls_t *tls, tls_issues_t const *ti)
signal(SIGPIPE, SIG_IGN);
#endif
if (tls->ctx == NULL) {
const SSL_METHOD *meth;
/* meth = SSLv3_method(); */
/* meth = SSLv23_method(); */
if (ti->version)
meth = TLSv1_method();
else
meth = SSLv23_method();
tls->ctx = SSL_CTX_new((SSL_METHOD*)meth);
SSL_CTX_sess_set_remove_cb(tls->ctx, NULL);
}
if (tls->ctx == NULL) {
tls_log_errors(1, "tls_init_context", 0);
errno = EIO;
return -1;
}
if (tls->ctx == NULL)
if (!(tls->ctx = SSL_CTX_new((SSL_METHOD*)SSLv23_method()))) {
tls_log_errors(1, "SSL_CTX_new() failed", 0);
errno = EIO;
return -1;
}
if (!(ti->version & TPTLS_VERSION_SSLv2))
SSL_CTX_set_options(tls->ctx, SSL_OP_NO_SSLv2);
if (!(ti->version & TPTLS_VERSION_SSLv3))
SSL_CTX_set_options(tls->ctx, SSL_OP_NO_SSLv3);
if (!(ti->version & TPTLS_VERSION_TLSv1))
SSL_CTX_set_options(tls->ctx, SSL_OP_NO_TLSv1);
if (!(ti->version & TPTLS_VERSION_TLSv1_1))
SSL_CTX_set_options(tls->ctx, SSL_OP_NO_TLSv1_1);
if (!(ti->version & TPTLS_VERSION_TLSv1_2))
SSL_CTX_set_options(tls->ctx, SSL_OP_NO_TLSv1_2);
SSL_CTX_sess_set_remove_cb(tls->ctx, NULL);
SSL_CTX_set_timeout(tls->ctx, ti->timeout);
/* Set callback if we have a passphrase */