1 files changed, 5 insertions, 4 deletions
diff --git a/tap.h b/tap.h
index 233497e..df3aec0 100644
--- a/tap.h
+++ b/tap.h
@@ -6,10 +6,11 @@
 #ifndef TAP_H
 #define TAP_H
 
-void tap_ip_send(struct ctx *c, struct in6_addr *src, uint8_t proto,
-		 char *in, size_t len, uint32_t flow);
-int tap_send(struct ctx *c, void *data, size_t len, int vnet_pre);
-void tap_handler(struct ctx *c, int fd, uint32_t events, struct timespec *now);
+void tap_ip_send(const struct ctx *c, const struct in6_addr *src, uint8_t proto,
+		 const char *in, size_t len, uint32_t flow);
+int tap_send(const struct ctx *c, const void *data, size_t len, int vnet_pre);
+void tap_handler(struct ctx *c, int fd, uint32_t events,
+		 const struct timespec *now);
 void tap_sock_init(struct ctx *c);
 
 #endif /* TAP_H */