netfilter: synproxy: add common uapi for SYNPROXY infrastructure

This new UAPI file is going to be used by the xt and nft common SYNPROXY
infrastructure. It is needed to avoid duplicated code.

Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/include/uapi/linux/netfilter/nf_SYNPROXY.h b/include/uapi/linux/netfilter/nf_SYNPROXY.h
new file mode 100644 (file)
index 0000000..068d1b3
--- /dev/null
+++ b/include/uapi/linux/netfilter/nf_SYNPROXY.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _NF_SYNPROXY_H
+#define _NF_SYNPROXY_H
+
+#include <linux/types.h>
+
+#define NF_SYNPROXY_OPT_MSS            0x01
+#define NF_SYNPROXY_OPT_WSCALE         0x02
+#define NF_SYNPROXY_OPT_SACK_PERM      0x04
+#define NF_SYNPROXY_OPT_TIMESTAMP      0x08
+#define NF_SYNPROXY_OPT_ECN            0x10
+
+struct nf_synproxy_info {
+       __u8    options;
+       __u8    wscale;
+       __u16   mss;
+};
+
+#endif /* _NF_SYNPROXY_H */

diff --git a/include/uapi/linux/netfilter/xt_SYNPROXY.h b/include/uapi/linux/netfilter/xt_SYNPROXY.h
index ea5eba15d4c1be75ad1bf5b0c1234a02826cf90a..4d5611d647dfec6f7875856736f88bdbd04cb5cf 100644 (file)
--- a/include/uapi/linux/netfilter/xt_SYNPROXY.h
+++ b/include/uapi/linux/netfilter/xt_SYNPROXY.h
@@ -2,18 +2,14 @@
 #ifndef _XT_SYNPROXY_H
 #define _XT_SYNPROXY_H
 
-#include <linux/types.h>
+#include <linux/netfilter/nf_SYNPROXY.h>
 
-#define XT_SYNPROXY_OPT_MSS            0x01
-#define XT_SYNPROXY_OPT_WSCALE         0x02
-#define XT_SYNPROXY_OPT_SACK_PERM      0x04
-#define XT_SYNPROXY_OPT_TIMESTAMP      0x08
-#define XT_SYNPROXY_OPT_ECN            0x10
+#define XT_SYNPROXY_OPT_MSS            NF_SYNPROXY_OPT_MSS
+#define XT_SYNPROXY_OPT_WSCALE         NF_SYNPROXY_OPT_WSCALE
+#define XT_SYNPROXY_OPT_SACK_PERM      NF_SYNPROXY_OPT_SACK_PERM
+#define XT_SYNPROXY_OPT_TIMESTAMP      NF_SYNPROXY_OPT_TIMESTAMP
+#define XT_SYNPROXY_OPT_ECN            NF_SYNPROXY_OPT_ECN
 
-struct xt_synproxy_info {
-       __u8    options;
-       __u8    wscale;
-       __u16   mss;
-};
+#define xt_synproxy_info               nf_synproxy_info
 
 #endif /* _XT_SYNPROXY_H */