26 lines
482 B
C
26 lines
482 B
C
#ifndef __LINUX_TCP_WRAPPER_H
|
|
#define __LINUX_TCP_WRAPPER_H 1
|
|
|
|
#include_next <linux/tcp.h>
|
|
|
|
#ifdef __KERNEL__
|
|
#include <linux/skbuff.h>
|
|
|
|
static inline struct tcphdr *tcp_hdr(const struct sk_buff *skb)
|
|
{
|
|
return (struct tcphdr *)skb_transport_header(skb);
|
|
}
|
|
|
|
static inline unsigned int tcp_hdrlen(const struct sk_buff *skb)
|
|
{
|
|
return tcp_hdr(skb)->doff * 4;
|
|
}
|
|
|
|
static inline unsigned int tcp_optlen(const struct sk_buff *skb)
|
|
{
|
|
return (tcp_hdr(skb)->doff - 5) * 4;
|
|
}
|
|
#endif
|
|
|
|
#endif
|