On Sat, 29 Jun 2019 22:33:57 +0900
"Daniel T. Lee" <danieltim...@gmail.com> wrote:
> 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: Daniel T. Lee <danieltim...@gmail.com>
> ---
> samples/pktgen/functions.sh | 34 ++++++++++++++++++++++++++++++++++
> 1 file changed, 34 insertions(+)
Nice bash shellcode with use of array variables.
Acked-by: Jesper Dangaard Brouer <bro...@redhat.com>
> diff --git a/samples/pktgen/functions.sh b/samples/pktgen/functions.sh
> index f8bb3cd0f4ce..4af4046d71be 100644
> --- a/samples/pktgen/functions.sh
> +++ b/samples/pktgen/functions.sh
> @@ -162,3 +162,37 @@ function get_node_cpus()
>
> 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"
> +}
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
LinkedIn: http://www.linkedin.com/in/brouer
