1 files changed, 11 insertions, 8 deletions
diff --git a/net/inet.h b/net/inet.h
index a2e8dd8..75ab6db 100644
--- a/net/inet.h
+++ b/net/inet.h
@@ -8,13 +8,16 @@
 #define ARP_IPV4 0x800
 #define ARP_REPLY 2
 #define ARP_REQUEST 1
+
 #define ETH_P_ARP	0x0806
+#define ETH_P_IPV4	0x0800
+
+#define IPV4_P_ICMP	0x1
+
+#define ICMP_ECHO_REPLY 0
+#define ICMP_UNREACHABLE 3
+#define ICMP_ECHO_REQUEST 8
 
-static uint16_t ntohs(uint16_t val)
-{
-    return val<<8|val>>8;
-}
-static uint16_t htons(uint16_t val)
-{
-    return val<<8|val>>8;
-}
+uint16_t checksum(void *addr, int count);
+uint16_t ntohs(uint16_t val);
+uint16_t htons(uint16_t val);