#endif
#include <string.h>
#include <stdio.h>
+#include <dirent.h>
#include <stdlib.h>
#include <gnutls/gnutls.h>
bool
ssl_init ()
{
+ const char *ca_directory;
+ DIR *dir;
+
gnutls_global_init ();
gnutls_certificate_allocate_credentials (&credentials);
+
+ ca_directory = opt.ca_directory ? opt.ca_directory : "/etc/ssl/certs";
+
+ dir = opendir (ca_directory);
+ if (dir == NULL)
+ {
+ if (opt.ca_directory)
+ logprintf (LOG_NOTQUIET, _("ERROR: Cannot open directory %s.\n"),
+ opt.ca_directory);
+ }
+ else
+ {
+ struct dirent *dent;
+ while ((dent = readdir (dir)) != NULL)
+ {
+ struct stat st;
+ char *ca_file;
+ asprintf (&ca_file, "%s/%s", ca_directory, dent->d_name);
+
+ stat (ca_file, &st);
+
+ if (S_ISREG (st.st_mode))
+ gnutls_certificate_set_x509_trust_file (credentials, ca_file,
+ GNUTLS_X509_FMT_PEM);
+
+ free (ca_file);
+ }
+
+ closedir (dir);
+ }
+
if (opt.ca_cert)
gnutls_certificate_set_x509_trust_file (credentials, opt.ca_cert,
GNUTLS_X509_FMT_PEM);
struct wgnutls_transport_context *ctx;
gnutls_session session;
int err;
+ int allowed_protocols[4] = {0, 0, 0, 0};
gnutls_init (&session, GNUTLS_CLIENT);
gnutls_set_default_priority (session);
gnutls_certificate_type_set_priority (session, cert_type_priority);
# define FD_TO_SOCKET(X) (X)
#endif
gnutls_transport_set_ptr (session, (gnutls_transport_ptr) FD_TO_SOCKET (fd));
+
+ err = 0;
+ switch (opt.secure_protocol)
+ {
+ case secure_protocol_auto:
+ break;
+ case secure_protocol_sslv2:
+ case secure_protocol_sslv3:
+ allowed_protocols[0] = GNUTLS_SSL3;
+ err = gnutls_protocol_set_priority (session, allowed_protocols);
+ break;
+ case secure_protocol_tlsv1:
+ allowed_protocols[0] = GNUTLS_TLS1_0;
+ allowed_protocols[1] = GNUTLS_TLS1_1;
+ allowed_protocols[2] = GNUTLS_TLS1_2;
+ err = gnutls_protocol_set_priority (session, allowed_protocols);
+ break;
+ default:
+ abort ();
+ }
+ if (err < 0)
+ {
+ logprintf (LOG_NOTQUIET, "GnuTLS: %s\n", gnutls_strerror (err));
+ gnutls_deinit (session);
+ return false;
+ }
+
err = gnutls_handshake (session);
if (err < 0)
{
gnutls_deinit (session);
return false;
}
+
ctx = xnew0 (struct wgnutls_transport_context);
ctx->session = session;
fd_register_transport (fd, &wgnutls_transport, ctx);