This patch adds three helpers uip_tcp_hdrlen(), uip_tcp_len(), uip_tcp_payloadlen() to return TCP header length, TCP totoal length, and tcp payload length.
Signed-off-by: Asias He <[email protected]> --- tools/kvm/include/kvm/uip.h | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-) diff --git a/tools/kvm/include/kvm/uip.h b/tools/kvm/include/kvm/uip.h index a772fdf..2ac48d7 100644 --- a/tools/kvm/include/kvm/uip.h +++ b/tools/kvm/include/kvm/uip.h @@ -203,6 +203,25 @@ static inline u16 uip_udp_len(struct uip_udp *udp) return ntohs(udp->len); } +static inline u16 uip_tcp_hdrlen(struct uip_tcp *tcp) +{ + return (tcp->off >> 4) * 4; +} + +static inline u16 uip_tcp_len(struct uip_tcp *tcp) +{ + struct uip_ip *ip; + + ip = &tcp->ip; + + return uip_ip_len(ip) - uip_ip_hdrlen(ip); +} + +static inline u16 uip_tcp_payloadlen(struct uip_tcp *tcp) +{ + return uip_tcp_len(tcp) - uip_tcp_hdrlen(tcp); +} + static inline u16 uip_eth_hdrlen(struct uip_eth *eth) { return sizeof(*eth); -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
