diff options
Diffstat (limited to 'src/openvpn/block_dns.h')
| -rw-r--r-- | src/openvpn/block_dns.h | 37 |
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 |