NAME

       tcp_internals - Internal TCP functions

SYNOPSIS

   Functions
       void nfq_tcp_compute_checksum_ipv4 (struct tcphdr *tcph, struct iphdr *iph)
       void nfq_tcp_compute_checksum_ipv6 (struct tcphdr *tcph, struct ip6_hdr *ip6h)

Detailed Description

       Most user-space programs will never need these.

Function Documentation

   void nfq_tcp_compute_checksum_ipv4 (struct tcphdr * tcph, struct iphdr * iph)
       nfq_tcp_compute_checksum_ipv4 - computes IPv4/TCP packet checksum

       Parameters
           tcph pointer to the TCP header
           iph pointer to the IPv4 header

       Note
           nfq_tcp_mangle_ipv4() invokes this function. As long as developers always use
           nfq_tcp_mangle_ipv4 when changing the content of a TCP message, there is no need to
           call nfq_tcp_compute_checksum_ipv4.

       Definition at line 108 of file tcp.c.

   void nfq_tcp_compute_checksum_ipv6 (struct tcphdr * tcph, struct ip6_hdr * ip6h)
       nfq_tcp_compute_checksum_ipv6 - computes IPv6/TCP packet checksum

       Parameters
           tcph pointer to the TCP header
           ip6h pointer to the IPv6 header

       Note
           nfq_tcp_mangle_ipv6() invokes this function. As long as developers always use
           nfq_tcp_mangle_ipv6 when changing the content of a TCP message, there is no need to
           call nfq_tcp_compute_checksum_ipv6.

       Definition at line 126 of file tcp.c.

Author

       Generated automatically by Doxygen for libnetfilter_queue from the source code.