Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2017 Cisco and/or its affiliates.
       3             :  * Licensed under the Apache License, Version 2.0 (the "License");
       4             :  * you may not use this file except in compliance with the License.
       5             :  * You may obtain a copy of the License at:
       6             :  *
       7             :  *     http://www.apache.org/licenses/LICENSE-2.0
       8             :  *
       9             :  * Unless required by applicable law or agreed to in writing, software
      10             :  * distributed under the License is distributed on an "AS IS" BASIS,
      11             :  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             :  * See the License for the specific language governing permissions and
      13             :  * limitations under the License.
      14             :  */
      15             : 
      16             : #ifndef PLUGINS_IOAM_PLUGIN_IOAM_UDP_PING_UDP_PING_UTIL_H_
      17             : #define PLUGINS_IOAM_PLUGIN_IOAM_UDP_PING_UDP_PING_UTIL_H_
      18             : 
      19             : int udp_ping_create_ip6_pak (u8 * buf,  /*u16 len, */
      20             :                              ip6_address_t src, ip6_address_t dst,
      21             :                              u16 src_port, u16 dst_port,
      22             :                              u8 msg_type, u16 ctx);
      23             : 
      24             : int
      25             : udp_ping_compare_flow (ip46_address_t src, ip46_address_t dst,
      26             :                        u16 start_src_port, u16 end_src_port,
      27             :                        u16 start_dst_port, u16 end_dst_port,
      28             :                        ip46_udp_ping_flow * flow);
      29             : 
      30             : void
      31             : udp_ping_populate_flow (ip46_address_t src, ip46_address_t dst,
      32             :                         u16 start_src_port, u16 end_src_port,
      33             :                         u16 start_dst_port, u16 end_dst_port,
      34             :                         u16 interval, u8 fault_det,
      35             :                         ip46_udp_ping_flow * flow);
      36             : 
      37             : void udp_ping_free_flow_data (ip46_udp_ping_flow * flow);
      38             : 
      39             : void udp_ping_create_rewrite (ip46_udp_ping_flow * flow, u16 ctx);
      40             : 
      41             : void udp_ping_send_ip6_pak (vlib_main_t * vm, ip46_udp_ping_flow * flow);
      42             : 
      43             : /**
      44             :  * @brief Create and send ipv6 udp-ping response packet.
      45             :  *
      46             :  */
      47             : always_inline void
      48           0 : udp_ping_create_reply_from_probe_ip6 (ip6_header_t * ip,
      49             :                                       ip6_hop_by_hop_header_t * hbh,
      50             :                                       udp_ping_t * udp)
      51             : {
      52             :   ip6_address_t src;
      53             :   u16 src_port;
      54             :   ioam_trace_option_t *trace;
      55             : 
      56           0 :   src = ip->src_address;
      57             : 
      58           0 :   ip->src_address = ip->dst_address;
      59           0 :   ip->dst_address = src;
      60             : 
      61             :   trace = (ioam_trace_option_t *)
      62           0 :     ip6_hbh_get_option (hbh, HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST);
      63           0 :   ip6_hbh_ioam_trace_reset_bit (trace, BIT_LOOPBACK);
      64             : 
      65             :   /* No need of endian transform */
      66           0 :   src_port = udp->udp.src_port;
      67             : 
      68           0 :   udp->udp.src_port = udp->udp.dst_port;
      69           0 :   udp->udp.dst_port = src_port;
      70           0 :   udp->udp.checksum = 0;     //FIXME
      71             : 
      72           0 :   udp->ping_data.msg_type = UDP_PING_REPLY;
      73           0 : }
      74             : 
      75             : #endif /* PLUGINS_IOAM_PLUGIN_IOAM_UDP_PING_UDP_PING_UTIL_H_ */
      76             : 
      77             : /*
      78             :  * fd.io coding-style-patch-verification: ON
      79             :  *
      80             :  * Local Variables:
      81             :  * eval: (c-set-style "gnu")
      82             :  * End:
      83             :  */