#!/usr/bin/env bash
################################################################################
# Test objective: check if we can send and receive packets through persistent
#                 VALE ports.
# Operations:
# 0) restart fd_server to have a clean starting state
# 1) create 3 persistent VALE ports (v0, v1, v2) and attach them to vale0.
# 2) send from vale0:v2 and check that both, vale0:v0 and vale0:v1, receive.
# 3) send from vale0:v0 and check that both, vale0:v1 and vale0:v2, receive.
################################################################################
source test_lib

parse_send_recv_arguments "$@"
verbosity="${verbosity:-}"
fill="${fill:-c}"
len="${len:-274}"
num="${num:-1}"
seq="${seq:-}"

restart_fd_server

create_vale_persistent_port "v0"
create_vale_persistent_port "v1"
create_vale_persistent_port "v2"
attach_to_vale_bridge "vale0" "v0"
attach_to_vale_bridge "vale0" "v1"
attach_to_vale_bridge "vale0" "v2"
# Pre-opening interface that will be needed. This is needed to avoid a race
# condition between the sending and receiving ports.
functional $verbosity -i "vale0:v0"
check_success $? "pre-open vale0:v0"
functional $verbosity -i "vale0:v1"
check_success $? "pre-open vale0:v1"
functional $verbosity -i "vale0:v2"
check_success $? "pre-open vale0:v2"

# v2 ---> v0, v1
functional $verbosity -i "vale0:v0" -r "${len}:${fill}:${num}" $seq &
p1=$!
functional $verbosity -i "vale0:v1" -r "${len}:${fill}:${num}" $seq &
p2=$!
functional $verbosity -i "vale0:v2" -t "${len}:${fill}:${num}" $seq
e3=$?
wait $p1
e1=$?
wait $p2
e2=$?
check_success $e1 "receive-${num} vale0:v0"
check_success $e2 "receive-${num} vale0:v1"
check_success $e3 "send-${num} vale0:v2"

# v0 ---> v1, v2
functional $verbosity -i "vale0:v1" -r "${len}:${fill}:${num}" $seq &
p4=$!
functional $verbosity -i "vale0:v2" -r "${len}:${fill}:${num}" $seq &
p5=$!
functional $verbosity -i "vale0:v0" -t "${len}:${fill}:${num}" $seq
e6=$?
wait $p4
e4=$?
wait $p5
e5=$?
check_success $e4 "receive-${num} vale0:v1"
check_success $e5 "receive-${num} vale0:v2"
check_success $e6 "send-${num} vale0:v0"

test_successful "$0"