Verify checksums on the RX datapath.

[gpxe.git] / src / include / gpxe / ip.h

diff --git a/src/include/gpxe/ip.h b/src/include/gpxe/ip.h
index 7cd2fcf..352cf64 100644 (file)
--- a/src/include/gpxe/ip.h
+++ b/src/include/gpxe/ip.h
@@ -8,8 +8,54 @@
  */
 
 #include <ip.h>
+#include <gpxe/retry.h>
 
+/* IP constants */
+
+#define IP_VER         0x40
+#define IP_MASK_VER    0xf0
+#define IP_MASK_HLEN   0x0f
+#define IP_MASK_OFFSET 0x1fff
+#define IP_MASK_DONOTFRAG      0x4000
+#define IP_MASK_MOREFRAGS      0x2000
+#define IP_PSHLEN      12
+
+/* IP header defaults */
+#define IP_TOS         0
+#define IP_TTL         64
+
+#define IP_FRAG_PKB_SIZE       1500
+#define IP_FRAG_TIMEOUT                50
+
+/* IP4 pseudo header */
+struct ipv4_pseudo_header {
+       struct in_addr src;
+       struct in_addr dest;
+       uint8_t zero_padding;
+       uint8_t protocol;
+       uint16_t len;
+};
+
+/* Fragment reassembly buffer */
+struct frag_buffer {
+       /* Identification number */
+       uint16_t ident;
+       /* Source network address */
+       struct in_addr src;
+       /* Destination network address */
+       struct in_addr dest;
+       /* Reassembled packet buffer */
+       struct pk_buff *frag_pkb;
+       /* Reassembly timer */
+       struct retry_timer frag_timer;
+       /* List of fragment reassembly buffers */
+       struct list_head list;
+};
+
+struct pk_buff;
+struct net_device;
 struct net_protocol;
+struct tcpip_protocol;
 
 extern struct net_protocol ipv4_protocol;
 
@@ -17,6 +63,5 @@ extern int add_ipv4_address ( struct net_device *netdev,
                              struct in_addr address, struct in_addr netmask,
                              struct in_addr gateway );
 extern void del_ipv4_address ( struct net_device *netdev );
-extern int ipv4_uip_tx ( struct pk_buff *pkb );
 
 #endif /* _GPXE_IP_H */