Adding upstream version 1.0.9.upstream/1.0.9upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 85 insertions, 0 deletions

diff --git a/include/tcpopt.h b/include/tcpopt.h
new file mode 100644
index 0000000..3a0b842
--- /dev/null
+++ b/include/tcpopt.h
@@ -0,0 +1,85 @@
+#ifndef NFTABLES_TCPOPT_H
+#define NFTABLES_TCPOPT_H
+
+#include <proto.h>
+#include <exthdr.h>
+#include <statement.h>
+
+extern struct expr *tcpopt_expr_alloc(const struct location *loc,
+				      unsigned int kind, unsigned int field);
+
+extern void tcpopt_init_raw(struct expr *expr, uint8_t type,
+			    unsigned int offset, unsigned int len,
+			    uint32_t flags);
+
+extern bool tcpopt_find_template(struct expr *expr, unsigned int offset,
+				 unsigned int len);
+
+/* TCP option numbers used on wire */
+enum tcpopt_kind {
+	TCPOPT_KIND_EOL = 0,
+	TCPOPT_KIND_NOP = 1,
+	TCPOPT_KIND_MAXSEG = 2,
+	TCPOPT_KIND_WINDOW = 3,
+	TCPOPT_KIND_SACK_PERMITTED = 4,
+	TCPOPT_KIND_SACK = 5,
+	TCPOPT_KIND_TIMESTAMP = 8,
+	TCPOPT_KIND_ECHO = 8,
+	TCPOPT_KIND_MD5SIG = 19,
+	TCPOPT_KIND_MPTCP = 30,
+	TCPOPT_KIND_FASTOPEN = 34,
+	__TCPOPT_KIND_MAX,
+
+	/* extra oob info, internal to nft */
+	TCPOPT_KIND_SACK1 = 256,
+	TCPOPT_KIND_SACK2 = 257,
+	TCPOPT_KIND_SACK3 = 258,
+};
+
+/* Internal identifiers */
+enum tcpopt_common {
+	TCPOPT_COMMON_KIND,
+	TCPOPT_COMMON_LENGTH,
+};
+
+enum tcpopt_maxseg {
+	TCPOPT_MAXSEG_KIND,
+	TCPOPT_MAXSEG_LENGTH,
+	TCPOPT_MAXSEG_SIZE,
+};
+
+enum tcpopt_timestamp {
+	TCPOPT_TS_KIND,
+	TCPOPT_TS_LENGTH,
+	TCPOPT_TS_TSVAL,
+	TCPOPT_TS_TSECR,
+};
+
+enum tcpopt_windowscale {
+	TCPOPT_WINDOW_KIND,
+	TCPOPT_WINDOW_LENGTH,
+	TCPOPT_WINDOW_COUNT,
+};
+
+enum tcpopt_hdr_field_sack {
+	TCPOPT_SACK_KIND,
+	TCPOPT_SACK_LENGTH,
+	TCPOPT_SACK_LEFT,
+	TCPOPT_SACK_RIGHT,
+	TCPOPT_SACK_LEFT1,
+	TCPOPT_SACK_RIGHT1,
+	TCPOPT_SACK_LEFT2,
+	TCPOPT_SACK_RIGHT2,
+	TCPOPT_SACK_LEFT3,
+	TCPOPT_SACK_RIGHT3,
+};
+
+enum tcpopt_hdr_mptcp_common {
+	TCPOPT_MPTCP_KIND,
+	TCPOPT_MPTCP_LENGTH,
+	TCPOPT_MPTCP_SUBTYPE,
+};
+
+extern const struct exthdr_desc *tcpopt_protocols[__TCPOPT_KIND_MAX];
+
+#endif /* NFTABLES_TCPOPT_H */