cpp-d1064d

[cross.git] / i686-linux-gnu-4.7 / usr / include / linux / netfilter / nf_conntrack_tcp.h

diff --git a/i686-linux-gnu-4.7/usr/include/linux/netfilter/nf_conntrack_tcp.h b/i686-linux-gnu-4.7/usr/include/linux/netfilter/nf_conntrack_tcp.h
new file mode 100644 (file)
index 0000000..a589dbc
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/linux/netfilter/nf_conntrack_tcp.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _NF_CONNTRACK_TCP_H
+#define _NF_CONNTRACK_TCP_H
+/* TCP tracking. */
+
+#include <linux/types.h>
+
+/* This is exposed to userspace (ctnetlink) */
+enum tcp_conntrack {
+       TCP_CONNTRACK_NONE,
+       TCP_CONNTRACK_SYN_SENT,
+       TCP_CONNTRACK_SYN_RECV,
+       TCP_CONNTRACK_ESTABLISHED,
+       TCP_CONNTRACK_FIN_WAIT,
+       TCP_CONNTRACK_CLOSE_WAIT,
+       TCP_CONNTRACK_LAST_ACK,
+       TCP_CONNTRACK_TIME_WAIT,
+       TCP_CONNTRACK_CLOSE,
+       TCP_CONNTRACK_LISTEN,   /* obsolete */
+#define TCP_CONNTRACK_SYN_SENT2        TCP_CONNTRACK_LISTEN
+       TCP_CONNTRACK_MAX,
+       TCP_CONNTRACK_IGNORE,
+       TCP_CONNTRACK_RETRANS,
+       TCP_CONNTRACK_UNACK,
+       TCP_CONNTRACK_TIMEOUT_MAX
+};
+
+/* Window scaling is advertised by the sender */
+#define IP_CT_TCP_FLAG_WINDOW_SCALE            0x01
+
+/* SACK is permitted by the sender */
+#define IP_CT_TCP_FLAG_SACK_PERM               0x02
+
+/* This sender sent FIN first */
+#define IP_CT_TCP_FLAG_CLOSE_INIT              0x04
+
+/* Be liberal in window checking */
+#define IP_CT_TCP_FLAG_BE_LIBERAL              0x08
+
+/* Has unacknowledged data */
+#define IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED     0x10
+
+/* The field td_maxack has been set */
+#define IP_CT_TCP_FLAG_MAXACK_SET              0x20
+
+/* Marks possibility for expected RFC5961 challenge ACK */
+#define IP_CT_EXP_CHALLENGE_ACK                0x40
+
+/* Simultaneous open initialized */
+#define IP_CT_TCP_SIMULTANEOUS_OPEN            0x80
+
+struct nf_ct_tcp_flags {
+       __u8 flags;
+       __u8 mask;
+};
+
+
+#endif /* _NF_CONNTRACK_TCP_H */