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#734 Problem with setsockopt(IPPROTO_IPV6,IPV6_ONLY) on Redhat

closed-fixed
None
5
2011-04-29
2011-04-12
EricJ
No

Running 2.8.1 on Redhat Server 5.5. In soap_bind (line 4670 of stdsoap2.cpp), setsockopt(soap->master, IPPROTO_IPV6, IPV6_V6ONLY, (char*)&unset, sizeof(int)) fails with "Protocol not supported"

'uname -s -r -v -p -i -o' returns
Linux 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010 x86_64 x86_64 GNU/Linux

'gcc --version' returns
gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-50)

Discussion

  • EricJ
    EricJ
    2011-04-12

    Apparantly, to make things work on various Windows platforms, we had to the change this code from 2.7.13 original
    #ifdef IPV6_V6ONLY
    if (setsockopt(soap->master, level, IPV6_V6ONLY, (char*)&unset, sizeof(int)))
    { soap->errnum = soap_socket_errno(soap->master);
    soap_set_receiver_error(soap, tcp_error(soap), "setsockopt IPV6_V6ONLY failed in soap_bind()", SOAP_TCP_ERROR);
    return SOAP_INVALID_SOCKET;
    }
    #endif

    To this:
    #ifdef GSOAP_WINDOWS // Preprocessor defined only in Windows
    xfutility::WindowsSystemInfo sysInfo;
    xfutility::WindowsVersion version = sysInfo.GetWindowsVersion();
    if (version == xfutility::WindowsVista ||
    version == xfutility::WindowsServer2008 ||
    version == xfutility::WindowsServer2008R2 ||
    version == xfutility::Windows7)
    {
    if (setsockopt(soap->master, level, IPV6_V6ONLY, (char*)&unset, sizeof(int)))
    { soap->errnum = soap_socket_errno(soap->master);
    soap_set_receiver_error(soap, tcp_error(soap), "setsockopt IPV6_V6ONLY failed in soap_bind()", SOAP_TCP_ERROR);
    return SOAP_INVALID_SOCKET;
    }
    }
    #endif

    This had the effect of removing the setsockopt call on our Linux builds as well. The attempt to set IPV6_V6ONLY option also
    fails on an embedded linux platform we use running Freescale Linux

     
    • assigned_to: nobody --> engelen
    • status: open --> pending-fixed
     
  • In the upcoming 2.8.2 release you can explicitly enable/disable this feature.

    The code in stdsoap2.c/.cpp 2.8.2 checks for WITH_IPV6_V6ONLY rather than IPV6_V6ONLY:

    #ifdef WITH_IPV6
    #ifdef WITH_IPV6_V6ONLY
    if (setsockopt(soap->master, IPPROTO_IPV6, IPV6_V6ONLY, (char*)&set, sizeof(int)))
    ...
    #ifdef WITH_NO_IPV6_V6ONLY
    if (setsockopt(soap->master, IPPROTO_IPV6, IPV6_V6ONLY, (char*)&unset, sizeof(int))

    and IPv6-IPv6 switch is enabled by default:

    #ifdef WITH_IPV6
    # ifdef IPV6_V6ONLY
    # if !defined(WITH_NO_IPV6_V6ONLY) && !defined(WITH_IPV6_V6ONLY)
    # define WITH_NO_IPV6_V6ONLY /* turn on IPv6-IPv4 switching */
    # endif
    # endif
    #endif

    This should hopefully resolve issues.

     
  • This Tracker item was closed automatically by the system. It was
    previously set to a Pending status, and the original submitter
    did not respond within 14 days (the time period specified by
    the administrator of this Tracker).

     
    • status: pending-fixed --> closed-fixed