ipv6 处理扩展头

      //ah协议头处理 530 static struct inet6_protocol ah6_protocol = { 531         .handler        =       xfrm6_rcv, 532         .err_handler    =       ah6_err, 533         .flags          =       INET6_PROTO_NOPOLICY, 534 };       //路由协议头处理503 static struct inet6_protocol rthdr_protocol = {504         .handler        =       ipv6_rthdr_rcv,505         .flags          =       INET6_PROTO_NOPOLICY | INET6_PROTO_GSO_EXTHDR,506 };       //目的协议头处理508 static struct inet6_protocol destopt_protocol = {509         .handler        =       ipv6_destopt_rcv,510         .flags          =       INET6_PROTO_NOPOLICY | INET6_PROTO_GSO_EXTHDR,511 };        513 static struct inet6_protocol nodata_protocol = {514         .handler        =       dst_discard,515         .flags          =       INET6_PROTO_NOPOLICY,516 };        //tcp协议头处理2095 static struct inet6_protocol tcpv6_protocol = {2096         .handler        =       tcp_v6_rcv,2097         .err_handler    =       tcp_v6_err,2098         .gso_send_check =       tcp_v6_gso_send_check,2099         .gso_segment    =       tcp_tso_segment,2100         .gro_receive    =       tcp6_gro_receive,2101         .gro_complete   =       tcp6_gro_complete,2102         .flags          =       INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,2103 };1033 static struct inet6_protocol udpv6_protocol = {1034         .handler        =       udpv6_rcv,1035         .err_handler    =       udpv6_err,1036         .flags          =       INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,1037 };         //esp协议头处理561 static struct inet6_protocol esp6_protocol = {562         .handler        =       xfrm6_rcv,563         .err_handler    =       esp6_err,564         .flags          =       INET6_PROTO_NOPOLICY,565 };           //管道协议头处理136 static struct inet6_protocol tunnel6_protocol = {137         .handler        = tunnel6_rcv,138         .err_handler    = tunnel6_err,139         .flags          = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,140 };141            142 static struct inet6_protocol tunnel46_protocol = {143         .handler        = tunnel46_rcv,144         .err_handler    = tunnel6_err,145         .flags          = INET6_PROTO_NOPOLICY|INET6_PROTO_FINAL,146 };

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