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

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

re-sending to the new ltp list...

On 03/09/2016 03:08 PM, Alexey Kodanev wrote:
> Hi,
> On 03/07/2016 10:01 AM, Hangbin Liu wrote:
>> Signed-off-by: Hangbin Liu <haliu@redhat.com>
>> ---
>>   testcases/lib/test_net.sh | 37 +++++++++++++++++++++++++++++++++++++
>>   1 file changed, 37 insertions(+)
>>
>> diff --git a/testcases/lib/test_net.sh b/testcases/lib/test_net.sh
>> index 418fed3..f75e78e 100644
>> --- a/testcases/lib/test_net.sh
>> +++ b/testcases/lib/test_net.sh
>> @@ -314,3 +314,40 @@ 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"}
>> +
>> +    # Check the arguments
>> +    if [ $# -lt 2 ]; then
>> +        tst_resm TBROK "tst_ping src_iface dest_ipv4/6_addr [msg_size]"
>> +        return 1
>> +    fi
>> +
>> +    local src_iface=$1
>> +    local dst_addr=$2
>
> They could be defaulted to $(tst_iface) and $(tst_ipaddr rhost) 
> accordingly.
> Then, we don't have to check the number of arguments and it fits for 
> the most cases.
>
>> +    # ping cmd use 56 as default message size
>> +    local msg_size=${3:-"56"}
>> +
>> +    if echo $dst_addr | grep ":"; then
>> +        local PING="ping6"
>> +        TST_IPV6=6
>> +    else
>> +        local PING="ping"
>> +    fi
>> +
>
> if test runs with -6 option, TST_IPV6 will be defined as 6, otherwise 
> is "".
> We can use it inside test_net.sh and tests. So here, we could call 
> ping command
> as follows: "ping$TST_IPV6 ..."
>
>
>> +    if [ "$dst_addr" == "$(tst_ipaddr)" ]; then
>> +        tst_rhost_run -c "$PING -I $src_iface -c $PING_MAX $dst_addr \
>> +            -s $msg_size > /dev/null 2>&1"
>> +    else
>> +        $PING -I $src_iface -c $PING_MAX $dst_addr -s $msg_size > \
>> +            /dev/null 2>&1
>> +    fi
>> +}
>
> Do we actually need to run this command from remote host?
>
> Best regards,
> Alexey
>