Handle errors from TAP-Win32/64 adapter in a better way.

[tinc] / src / mingw / device.c

diff --git a/src/mingw/device.c b/src/mingw/device.c
index 56203d4..441c524 100644 (file)
--- a/src/mingw/device.c
+++ b/src/mingw/device.c
@@ -49,6 +49,7 @@ static DWORD WINAPI tapreader(void *bla) {
        DWORD len;
        OVERLAPPED overlapped;
        vpn_packet_t packet;
+       int errors;
 
        logger(LOG_DEBUG, "Tap reader running");
 
@@ -71,13 +72,22 @@ static DWORD WINAPI tapreader(void *bla) {
                        } else {
                                logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
                                           device, strerror(errno));
-                               return -1;
+                               errors++;
+                               if(errors >= 10) {
+                                       EnterCriticalSection(&mutex);
+                                       running = false;
+                                       LeaveCriticalSection(&mutex);
+                               }
+                               usleep(1000000);
+                               continue;
                        }
                }
 
-               EnterCriticalSection(&mutex);
+               errors = 0;
                packet.len = len;
                packet.priority = 0;
+
+               EnterCriticalSection(&mutex);
                route(myself, &packet);
                LeaveCriticalSection(&mutex);
        }