[LTP] [PATCH]utils/sctp: bugfix for testlib/sctputil.h

[Richard Palethorpe]

Hello,

Petr Vorel <pvorel@suse.cz> writes:

> Hi Li,
>
>> The socket is created and bound immediately without waiting for the handshake after close(sk).
>> "bind(): errno=EADDRINUSE(98): Address already in use" may be reported.
>> Use SO_REUSEPORT to allow multiple sockets to be bound to the same port.
>
> How this can happen? Running tests too quickly one after the other?
> Or what is different on your SUT? I'm not sure if it's good idea to always test
> with SO_REUSEADDR and SO_REUSEPORT.
>
>> Signed-off-by: Min Li <limin154@huawei.com>
>> ---
>>  utils/sctp/testlib/sctputil.h | 9 +++++++++
>>  1 file changed, 9 insertions(+)
>
>> diff --git a/utils/sctp/testlib/sctputil.h b/utils/sctp/testlib/sctputil.h
>> index 176d623f0..b51a3f9b0 100644
>> --- a/utils/sctp/testlib/sctputil.h
>> +++ b/utils/sctp/testlib/sctputil.h
>> @@ -133,6 +133,15 @@ extern int TST_CNT;
>>  static inline int test_socket(int domain, int type, int protocol)
>>  {
>>  	int sk = socket(domain, type, protocol);
>> +	int true_const=1;
> What is this unused variable for?

It's used as the socket option value.

>
>> +
>> +	if(setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &true_const, sizeof(int))){
>> +		printf("set addr err\n");
> Besides missing spaces in if (if (..) { ), we have SAFE_SETSOCKOPT().
> Or tst_brkm(TWARN, ...) could be used (we don't use printf directly in
> LTP).

+1 for SAFE_SETSOCKOPT

>
> Kind regards,
> Petr
>
>> +	}
>> +
>> +	if(setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &true_const, sizeof(int))){
>> +		printf("set port err\n");
>> +	}

We don't need to set it twice.

Setting patch as changes requested.

>
>>  	if (sk == -1) {
>>  		if (errno == EAFNOSUPPORT)


-- 
Thank you,
Richard.