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 a6c5906..352cf64 100644 (file)
--- a/src/include/gpxe/ip.h
+++ b/src/include/gpxe/ip.h
@@ -8,18 +8,25 @@
  */
 
 #include <ip.h>
+#include <gpxe/retry.h>
 
 /* IP constants */
 
-#define IP_VER         4
+#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;
@@ -29,6 +36,22 @@ struct ipv4_pseudo_header {
        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;
@@ -41,8 +64,4 @@ extern int add_ipv4_address ( struct net_device *netdev,
                              struct in_addr gateway );
 extern void del_ipv4_address ( struct net_device *netdev );
 
-extern int ipv4_uip_tx ( struct pk_buff *pkb );
-extern int ipv4_tx ( struct pk_buff *pkb, struct tcpip_protocol *tcpip,
-                    struct in_addr *dest );
-
 #endif /* _GPXE_IP_H */