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authorjames <james@e7ae566f-a301-0410-adde-c780ea21d3b5>2009-06-22 20:48:35 +0000
committerjames <james@e7ae566f-a301-0410-adde-c780ea21d3b5>2009-06-22 20:48:35 +0000
commit7ea8261049d8897b46e26f62dec3f6768e0b3f9a (patch)
tree763d0b19f9a1f695b5591b6b4633121a0d30457c /tap-win32/constants.h
parentRename generated tapdrvr.cod to a unique name to avoid the issue where (diff)
downloadopenvpn-7ea8261049d8897b46e26f62dec3f6768e0b3f9a.tar.xz
In Windows TAP driver, refactor DHCP/ARP packet injection code to
use a DPC (deferred procedure call) to defer packet injection until IRQL < DISPATCH_LEVEL, rather than calling NdisMEthIndicateReceive in the context of AdapterTransmit. This is an attempt to reduce kernel stack usage, and prevent EXCEPTION_DOUBLE_FAULT BSODs that have been observed on Vista. Updated TAP driver version number to 9.6. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@4606 e7ae566f-a301-0410-adde-c780ea21d3b5
Diffstat (limited to '')
-rwxr-xr-xtap-win32/constants.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tap-win32/constants.h b/tap-win32/constants.h
index b6a3d56..fc7855d 100755
--- a/tap-win32/constants.h
+++ b/tap-win32/constants.h
@@ -51,5 +51,6 @@
#define PACKET_QUEUE_SIZE 64 // tap -> userspace queue size
#define IRP_QUEUE_SIZE 16 // max number of simultaneous i/o operations from userspace
+#define INJECT_QUEUE_SIZE 16 // DHCP/ARP -> tap injection queue
#define TAP_LITTLE_ENDIAN // affects ntohs, htonl, etc. functions