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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef PLUGINS_IOAM_PLUGIN_IOAM_UDP_PING_UDP_PING_UTIL_H_
#define PLUGINS_IOAM_PLUGIN_IOAM_UDP_PING_UDP_PING_UTIL_H_
int udp_ping_create_ip6_pak (u8 * buf, /*u16 len, */
ip6_address_t src, ip6_address_t dst,
u16 src_port, u16 dst_port,
u8 msg_type, u16 ctx);
int
udp_ping_compare_flow (ip46_address_t src, ip46_address_t dst,
u16 start_src_port, u16 end_src_port,
u16 start_dst_port, u16 end_dst_port,
ip46_udp_ping_flow * flow);
void
udp_ping_populate_flow (ip46_address_t src, ip46_address_t dst,
u16 start_src_port, u16 end_src_port,
u16 start_dst_port, u16 end_dst_port,
u16 interval, u8 fault_det,
ip46_udp_ping_flow * flow);
void udp_ping_free_flow_data (ip46_udp_ping_flow * flow);
void udp_ping_create_rewrite (ip46_udp_ping_flow * flow, u16 ctx);
void udp_ping_send_ip6_pak (vlib_main_t * vm, ip46_udp_ping_flow * flow);
/**
* @brief Create and send ipv6 udp-ping response packet.
*
*/
always_inline void
udp_ping_create_reply_from_probe_ip6 (ip6_header_t * ip,
ip6_hop_by_hop_header_t * hbh,
udp_ping_t * udp)
{
ip6_address_t src;
u16 src_port;
ioam_trace_option_t *trace;
src = ip->src_address;
ip->src_address = ip->dst_address;
ip->dst_address = src;
trace = (ioam_trace_option_t *)
ip6_hbh_get_option (hbh, HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST);
ip6_hbh_ioam_trace_reset_bit (trace, BIT_LOOPBACK);
/* No need of endian transform */
src_port = udp->udp.src_port;
udp->udp.src_port = udp->udp.dst_port;
udp->udp.dst_port = src_port;
udp->udp.checksum = 0; //FIXME
udp->ping_data.msg_type = UDP_PING_REPLY;
}
#endif /* PLUGINS_IOAM_PLUGIN_IOAM_UDP_PING_UDP_PING_UTIL_H_ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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