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-rw-r--r--src/netlink.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/src/netlink.c b/src/netlink.c
index a43f782..5b6452a 100644
--- a/src/netlink.c
+++ b/src/netlink.c
@@ -196,12 +196,12 @@ int nl_create_conntrack(struct nfct_handle *h,
nfct_setobjopt(ct, NFCT_SOPT_SETUP_REPLY);
- /*
- * TCP flags to overpass window tracking for recovered connections
- */
+ /* disable TCP window tracking for recovered connections if required */
if (nfct_attr_is_set(ct, ATTR_TCP_STATE)) {
- uint8_t flags = IP_CT_TCP_FLAG_BE_LIBERAL |
- IP_CT_TCP_FLAG_SACK_PERM;
+ uint8_t flags = IP_CT_TCP_FLAG_SACK_PERM;
+
+ if (!CONFIG(sync).tcp_window_tracking)
+ flags |= IP_CT_TCP_FLAG_BE_LIBERAL;
/* FIXME: workaround, we should send TCP flags in updates */
if (nfct_get_attr_u8(ct, ATTR_TCP_STATE) >=
@@ -261,12 +261,12 @@ int nl_update_conntrack(struct nfct_handle *h,
nfct_attr_unset(ct, ATTR_MASTER_PORT_DST);
}
- /*
- * TCP flags to overpass window tracking for recovered connections
- */
+ /* disable TCP window tracking for recovered connections if required */
if (nfct_attr_is_set(ct, ATTR_TCP_STATE)) {
- uint8_t flags = IP_CT_TCP_FLAG_BE_LIBERAL |
- IP_CT_TCP_FLAG_SACK_PERM;
+ uint8_t flags = IP_CT_TCP_FLAG_SACK_PERM;
+
+ if (!CONFIG(sync).tcp_window_tracking)
+ flags |= IP_CT_TCP_FLAG_BE_LIBERAL;
/* FIXME: workaround, we should send TCP flags in updates */
if (nfct_get_attr_u8(ct, ATTR_TCP_STATE) >=