From: TDivine <tdiv...@pcausa.com>
---
src/openvpn/forward.c | 9 +++++++++
src/openvpn/tun.h | 34 ++++++++++++++++++++--------------
2 files changed, 29 insertions(+), 14 deletions(-)
diff --git a/src/openvpn/forward.c b/src/openvpn/forward.c
index 39f66e3..27b775f 100644
--- a/src/openvpn/forward.c
+++ b/src/openvpn/forward.c
@@ -948,6 +948,15 @@ read_incoming_tun (struct context *c)
return;
}
+ /* Was TUN/TAP I/O operation aborted? */
+ if (tuntap_abort(c->c2.buf.len))
+ {
+ register_signal(c, SIGTERM, "tun-abort");
+ msg(M_FATAL, "TUN/TAP I/O operation aborted, exiting");
+ perf_pop();
+ return;
+ }
+
/* Check the status return from read() */
check_status (c->c2.buf.len, "read from TUN/TAP", NULL, c->c1.tuntap);
diff --git a/src/openvpn/tun.h b/src/openvpn/tun.h
index d84b777..7712568 100644
--- a/src/openvpn/tun.h
+++ b/src/openvpn/tun.h
@@ -378,28 +378,34 @@ int tun_write_queue (struct tuntap *tt, struct buffer
*buf);
int tun_finalize (HANDLE h, struct overlapped_io *io, struct buffer *buf);
static inline bool
-tuntap_stop (int status)
+tuntap_stop(int status)
+{
+ /*
+ * This corresponds to the STATUS_NO_SUCH_DEVICE
+ * error in tapdrvr.c.
+ */
+ if (status < 0)
+ {
+ return openvpn_errno() == ERROR_FILE_NOT_FOUND;
+ }
+ return false;
+}
+
+static inline bool
+tuntap_abort(int status)
{
/*
- * This corresponds to the STATUS_NO_SUCH_DEVICE
- * error in tapdrvr.c.
- */
+ * Typically generated when driver is halted.
+ */
if (status < 0)
{
- status = openvpn_errno();
- switch (status)
- {
- case ERROR_FILE_NOT_FOUND:
- case ERROR_OPERATION_ABORTED:
- return true;
-
- default:
- return false;
- }
+ return openvpn_errno() == ERROR_OPERATION_ABORTED;
}
return false;
}
+
+
static inline int
tun_write_win32 (struct tuntap *tt, struct buffer *buf)
{
--
1.9.1
