From 5acf5ea4bc1535657692c509092caddec3d719ff Mon Sep 17 00:00:00 2001 From: Dmitry Fleytman Date: Sat, 9 Mar 2013 11:21:02 +0200 Subject: Checksum-related utility functions net_checksum_add_cont() checksum calculation for scattered data with odd chunk sizes net_raw_checksum() checksum calculation for a buffer Signed-off-by: Dmitry Fleytman Signed-off-by: Yan Vugenfirer Signed-off-by: Stefan Hajnoczi --- include/net/checksum.h | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/checksum.h b/include/net/checksum.h index 1f052986e6..3e7b93d094 100644 --- a/include/net/checksum.h +++ b/include/net/checksum.h @@ -20,10 +20,22 @@ #include -uint32_t net_checksum_add(int len, uint8_t *buf); +uint32_t net_checksum_add_cont(int len, uint8_t *buf, int seq); 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); +static inline uint32_t +net_checksum_add(int len, uint8_t *buf) +{ + return net_checksum_add_cont(len, buf, 0); +} + +static inline uint16_t +net_raw_checksum(uint8_t *data, int length) +{ + return net_checksum_finish(net_checksum_add(length, data)); +} + #endif /* QEMU_NET_CHECKSUM_H */ -- cgit v1.2.3