taglinefilesource code
fragheaderlen2328net/ipv4/ip.cunsigned int fraglen, maxfraglen, fragheaderlen;
fragheaderlen2413net/ipv4/ip.cfragheaderlen = dev->hard_header_len;
fragheaderlen2415net/ipv4/ip.cfragheaderlen += 20;
fragheaderlen2422net/ipv4/ip.cmaxfraglen = ((dev->mtu-20) & ~7) + fragheaderlen;
fragheaderlen2428net/ipv4/ip.coffset = length - (length % (maxfraglen - fragheaderlen));
fragheaderlen2434net/ipv4/ip.cfraglen = length - offset + fragheaderlen;
fragheaderlen2439net/ipv4/ip.coffset -= maxfraglen-fragheaderlen;
fragheaderlen2530net/ipv4/ip.ciph->tot_len = htons(fraglen - fragheaderlen + iph->ihl*4);
fragheaderlen2558net/ipv4/ip.cgetfrag(frag, saddr, data, offset, fraglen-fragheaderlen);
fragheaderlen2568net/ipv4/ip.coffset -= (maxfraglen-fragheaderlen);