[LTP] [PATCHv2 1/3] lib/test_net.sh: add tst_ping() to check icmp connectivity

[Alexey Kodanev <alexey.kodanev@oracle.com>]

Hi,
On 03/15/2016 12:50 PM, Hangbin Liu wrote:
> Signed-off-by: Hangbin Liu <haliu@redhat.com>
> ---
>   testcases/lib/test_net.sh | 21 +++++++++++++++++++++
>   1 file changed, 21 insertions(+)
>
> diff --git a/testcases/lib/test_net.sh b/testcases/lib/test_net.sh
> index 418fed3..8517cb9 100644
> --- a/testcases/lib/test_net.sh
> +++ b/testcases/lib/test_net.sh
> @@ -314,3 +314,24 @@ tst_netload()
>   
>   	return $ret
>   }
> +
> +# tst_ping [IFACE] [ADDR] [SIZE]
> +# Check icmp connectivity
> +# IFACE: source interface name
> +# ADDR: destination IPv4 or IPv6 address
> +# SIZE: message size
> +tst_ping()
> +{
> +	# The max number of ICMP echo request
> +	PING_MAX=${PING_MAX:-"10"}
> +
> +	local src_iface=${1:-"$(tst_iface)"}
> +	local dst_addr=${2:-"$(tst_ipaddr rhost)"}
> +	# ping cmd use 56 as default message size
> +	local msg_size=${3:-"56"}
> +
> +	echo $dst_addr | grep -q ":" && TST_IPV6=6

You shouldn't have this check here because TST_IPV6 should be
set before test runs. Either test starts with '-6' parameter (that way
it is automatically set in test_net.sh) or manually defined as
TST_IPV6=6 in ipv6 specific test.

Note, tst_ipaddr function returns IPv4 or IPv6 address depending on
TST_IPV6, so it is quite strange to check the returned address by this
function and set TST_IPV6.

Thanks,
Alexey