Add IP checksumming functions to qemu (Gerd Hoffmann)

This can be shared between the e1000, virtio-net, and xennet.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4971 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 7 insertions, 0 deletions

diff --git a/net.h b/net.h
index d00910f287..5212b48326 100644
--- a/net.h
+++ b/net.h
@@ -48,4 +48,11 @@ struct NICInfo {
 extern int nb_nics;
 extern NICInfo nd_table[MAX_NICS];
 
+/* checksumming functions (net-checksum.c) */
+uint32_t net_checksum_add(int len, uint8_t *buf);
+uint16_t net_checksum_finish(uint32_t sum);
+uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
+                             uint8_t *addrs, uint8_t *buf);
+void net_checksum_calculate(uint8_t *data, int length);
+
 #endif