Commit 226b96c2 authored by Daniel T. Lee's avatar Daniel T. Lee Committed by David S. Miller

samples: pktgen: add some helper functions for port parsing

This commit adds port parsing and port validate helper function to parse
single or range of port(s) from a given string. (e.g. 1234, 443-444)

Helpers will be used in prior to set target port(s) in samples/pktgen.
Signed-off-by: default avatarDaniel T. Lee <danieltimlee@gmail.com>
Acked-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a346abe0
...@@ -162,3 +162,37 @@ function get_node_cpus() ...@@ -162,3 +162,37 @@ function get_node_cpus()
echo $node_cpu_list echo $node_cpu_list
} }
# Given a single or range of port(s), return minimum and maximum port number.
function parse_ports()
{
local port_str=$1
local port_list
local min_port
local max_port
IFS="-" read -ra port_list <<< $port_str
min_port=${port_list[0]}
max_port=${port_list[1]:-$min_port}
echo $min_port $max_port
}
# Given a minimum and maximum port, verify port number.
function validate_ports()
{
local min_port=$1
local max_port=$2
# 0 < port < 65536
if [[ $min_port -gt 0 && $min_port -lt 65536 ]]; then
if [[ $max_port -gt 0 && $max_port -lt 65536 ]]; then
if [[ $min_port -le $max_port ]]; then
return 0
fi
fi
fi
err 5 "Invalid port(s): $min_port-$max_port"
}
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