1 files changed, 15 insertions, 0 deletions
diff --git a/tcp.h b/tcp.h
index 9fa8244..3ef57f3 100644
--- a/tcp.h
+++ b/tcp.h
@@ -1,4 +1,19 @@
+#ifndef TCP_H
+#define TCP_H
+
+struct ctx;
+
 void tcp_sock_handler(struct ctx *c, int s, uint32_t events);
 void tcp_tap_handler(struct ctx *c, int af, void *addr, char *in, size_t len);
 int tcp_sock_init(struct ctx *c);
 void tcp_timer(struct ctx *c, struct timespec *ts);
+
+/**
+ * struct tcp_ctx - Execution context for TCP routines
+ * @hash_secret:	128-bit secret for hash functions, ISN and hash table
+ */
+struct tcp_ctx {
+	uint64_t hash_secret[2];
+};
+
+#endif /* TCP_H */