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authorAlberto Gonzalez Iniesta <agi@inittab.org>2017-06-22 13:16:46 +0200
committerAlberto Gonzalez Iniesta <agi@inittab.org>2017-06-22 13:16:46 +0200
commit9683f890944ffb114f5f8214f694e0b339cf5a5a (patch)
treefa391f5f343554b2861b1f8722d0a2a627e1c1fc /src/openvpn/block_dns.h
parent3a2bbdb05ca6a6996e424c9fb225cb0d53804125 (diff)
New upstream version 2.4.3upstream/2.4.3
Diffstat (limited to 'src/openvpn/block_dns.h')
-rw-r--r--src/openvpn/block_dns.h37
1 files changed, 33 insertions, 4 deletions
diff --git a/src/openvpn/block_dns.h b/src/openvpn/block_dns.h
index a7dadc4..c4b6693 100644
--- a/src/openvpn/block_dns.h
+++ b/src/openvpn/block_dns.h
@@ -16,10 +16,9 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program (see the file COPYING included with this
- * distribution); if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifdef _WIN32
@@ -27,6 +26,9 @@
#ifndef OPENVPN_BLOCK_DNS_H
#define OPENVPN_BLOCK_DNS_H
+/* Any value less than 5 should work fine. 3 is choosen without any real reason. */
+#define BLOCK_DNS_IFACE_METRIC 3
+
typedef void (*block_dns_msg_handler_t) (DWORD err, const char *msg);
DWORD
@@ -36,5 +38,32 @@ DWORD
add_block_dns_filters(HANDLE *engine, int iface_index, const WCHAR *exe_path,
block_dns_msg_handler_t msg_handler_callback);
+/**
+ * Returns interface metric value for specified interface index.
+ *
+ * @param index The index of TAP adapter
+ * @param family Address family (AF_INET for IPv4 and AF_INET6 for IPv6)
+ *
+ * @return positive metric value or zero for automatic metric on success,
+ * a less then zero error code on failure.
+ */
+
+int
+get_interface_metric(const NET_IFINDEX index, const ADDRESS_FAMILY family);
+
+/**
+ * Sets interface metric value for specified interface index.
+ *
+ * @param index The index of TAP adapter
+ * @param family Address family (AF_INET for IPv4 and AF_INET6 for IPv6)
+ * @param metric Metric value. 0 for automatic metric
+ *
+ * @return 0 on success, a non-zero status code of the last failed action on failure.
+ */
+
+DWORD
+set_interface_metric(const NET_IFINDEX index, const ADDRESS_FAMILY family,
+ const ULONG metric);
+
#endif
#endif