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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/win32.c
parent3a2bbdb05ca6a6996e424c9fb225cb0d53804125 (diff)
New upstream version 2.4.3upstream/2.4.3
Diffstat (limited to 'src/openvpn/win32.c')
-rw-r--r--src/openvpn/win32.c58
1 files changed, 48 insertions, 10 deletions
diff --git a/src/openvpn/win32.c b/src/openvpn/win32.c
index e26f54d..d0b10ba 100644
--- a/src/openvpn/win32.c
+++ b/src/openvpn/win32.c
@@ -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.
*/
/*
@@ -61,6 +60,12 @@
static HANDLE m_hEngineHandle = NULL; /* GLOBAL */
/*
+ * TAP adapter original metric value
+ */
+static int tap_metric_v4 = -1; /* GLOBAL */
+static int tap_metric_v6 = -1; /* GLOBAL */
+
+/*
* Windows internal socket API state (opaque).
*/
static struct WSAData wsa_state; /* GLOBAL */
@@ -569,7 +574,8 @@ win32_keyboard_get(struct win32_signal *ws)
if (HANDLE_DEFINED(ws->in.read))
{
INPUT_RECORD ir;
- do {
+ do
+ {
DWORD n;
if (!keyboard_input_available(ws))
{
@@ -681,7 +687,8 @@ win32_pause(struct win32_signal *ws)
{
int status;
msg(M_INFO|M_NOPREFIX, "Press any key to continue...");
- do {
+ do
+ {
status = WaitForSingleObject(ws->in.read, INFINITE);
} while (!win32_keyboard_get(ws));
}
@@ -984,7 +991,9 @@ env_block(const struct env_set *es)
bool path_seen = false;
for (e = es->list; e != NULL; e = e->next)
+ {
nchars += strlen(e->string) + 1;
+ }
nchars += strlen(force_path)+1;
@@ -1324,8 +1333,8 @@ win_wfp_block_dns(const NET_IFINDEX index, const HANDLE msg_channel)
goto out;
}
- status = GetModuleFileNameW(NULL, openvpnpath, sizeof(openvpnpath));
- if (status == 0 || status == sizeof(openvpnpath))
+ status = GetModuleFileNameW(NULL, openvpnpath, _countof(openvpnpath));
+ if (status == 0 || status == _countof(openvpnpath))
{
msg(M_WARN|M_ERRNO, "block_dns: cannot get executable path");
goto out;
@@ -1333,6 +1342,27 @@ win_wfp_block_dns(const NET_IFINDEX index, const HANDLE msg_channel)
status = add_block_dns_filters(&m_hEngineHandle, index, openvpnpath,
block_dns_msg_handler);
+ if (status == 0)
+ {
+ tap_metric_v4 = get_interface_metric(index, AF_INET);
+ tap_metric_v6 = get_interface_metric(index, AF_INET6);
+ if (tap_metric_v4 < 0)
+ {
+ /* error, should not restore metric */
+ tap_metric_v4 = -1;
+ }
+ if (tap_metric_v6 < 0)
+ {
+ /* error, should not restore metric */
+ tap_metric_v6 = -1;
+ }
+ status = set_interface_metric(index, AF_INET, BLOCK_DNS_IFACE_METRIC);
+ if (!status)
+ {
+ set_interface_metric(index, AF_INET6, BLOCK_DNS_IFACE_METRIC);
+ }
+ }
+
ret = (status == 0);
out:
@@ -1341,19 +1371,27 @@ out:
}
bool
-win_wfp_uninit(const HANDLE msg_channel)
+win_wfp_uninit(const NET_IFINDEX index, const HANDLE msg_channel)
{
dmsg(D_LOW, "Uninitializing WFP");
if (msg_channel)
{
msg(D_LOW, "Using service to delete block dns filters");
- win_block_dns_service(false, -1, msg_channel);
+ win_block_dns_service(false, index, msg_channel);
}
else
{
delete_block_dns_filters(m_hEngineHandle);
m_hEngineHandle = NULL;
+ if (tap_metric_v4 >= 0)
+ {
+ set_interface_metric(index, AF_INET, tap_metric_v4);
+ }
+ if (tap_metric_v6 >= 0)
+ {
+ set_interface_metric(index, AF_INET6, tap_metric_v6);
+ }
}
return true;