Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / netfilter / nf_conntrack_tcp.h

diff --git a/kernel/include/linux/netfilter/nf_conntrack_tcp.h b/kernel/include/linux/netfilter/nf_conntrack_tcp.h
new file mode 100644 (file)
index 0000000..22db961
--- /dev/null
+++ b/kernel/include/linux/netfilter/nf_conntrack_tcp.h
@@ -0,0 +1,32 @@
+#ifndef _NF_CONNTRACK_TCP_H
+#define _NF_CONNTRACK_TCP_H
+
+#include <uapi/linux/netfilter/nf_conntrack_tcp.h>
+
+
+struct ip_ct_tcp_state {
+       u_int32_t       td_end;         /* max of seq + len */
+       u_int32_t       td_maxend;      /* max of ack + max(win, 1) */
+       u_int32_t       td_maxwin;      /* max(win) */
+       u_int32_t       td_maxack;      /* max of ack */
+       u_int8_t        td_scale;       /* window scale factor */
+       u_int8_t        flags;          /* per direction options */
+};
+
+struct ip_ct_tcp {
+       struct ip_ct_tcp_state seen[2]; /* connection parameters per direction */
+       u_int8_t        state;          /* state of the connection (enum tcp_conntrack) */
+       /* For detecting stale connections */
+       u_int8_t        last_dir;       /* Direction of the last packet (enum ip_conntrack_dir) */
+       u_int8_t        retrans;        /* Number of retransmitted packets */
+       u_int8_t        last_index;     /* Index of the last packet */
+       u_int32_t       last_seq;       /* Last sequence number seen in dir */
+       u_int32_t       last_ack;       /* Last sequence number seen in opposite dir */
+       u_int32_t       last_end;       /* Last seq + len */
+       u_int16_t       last_win;       /* Last window advertisement seen in dir */
+       /* For SYN packets while we may be out-of-sync */
+       u_int8_t        last_wscale;    /* Last window scaling factor seen */
+       u_int8_t        last_flags;     /* Last flags set */
+};
+
+#endif /* _NF_CONNTRACK_TCP_H */