Date: Thu, 24 Jan 2008 12:00:46 +0100 From: Kris Kennaway <kris@FreeBSD.org> To: Stefan Lambrev <stefan.lambrev@moneybookers.com> Cc: freebsd-hackers@freebsd.org, Ivan Voras <ivoras@freebsd.org> Subject: Re: gettimeofday() in hping Message-ID: <47986FDE.3030402@FreeBSD.org> In-Reply-To: <47985936.2030705@moneybookers.com> References: <4795CC13.7080601@moneybookers.com> <4795FE54.9090606@moneybookers.com> <86lk6i0vzk.fsf@ds4.des.no> <479605E2.6070709@moneybookers.com> <fn5c7u$i7e$2@ger.gmane.org> <47964356.6030602@moneybookers.com> <479647FB.3070909@FreeBSD.org> <47970EE2.5000400@moneybookers.com> <fn7evj$smv$1@ger.gmane.org> <479754E6.1060101@moneybookers.com> <9bbcef730801230802n5c52832bk60c6afc47be578f4@mail.gmail.com> <479794DB.4020504@FreeBSD.org> <47985936.2030705@moneybookers.com>
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Stefan Lambrev wrote:
>> It is the socket buffer that is filling up. Either the application is
>> not increasing it to large enough size or the default maximum is too
>> low (Linux may set a larger default). Try increasing
>> kern.ipc.maxsockbuf and confirming with the source and/or ktrace that
>> it is doing the right setsockopt() call.
> Increasing kern.ipc.maxsockbuf doesn't help.
>
> Actually this is the code that failed and print this error:
>
> result = sendto(sockraw, packet, packetsize, 0,
> (struct sockaddr*)&remote, sizeof(remote));
>
> if (result == -1 && errno != EINTR && !opt_rand_dest &&
> !opt_rand_source) {
> perror("[send_ip] sendto");
>
> Those are the only references for setsockopt when ktracing:
> 3385 hping CALL __sysctl(0xbfbfe870,0x6,0,0xbfbfe888,0,0)
> 3385 hping RET __sysctl 0
> 3385 hping CALL __sysctl(0xbfbfe870,0x6,0x28305180,0xbfbfe888,0,0)
> 3385 hping RET __sysctl 0
> 3385 hping CALL socket(PF_INET,SOCK_DGRAM,IPPROTO_IP)
> 3385 hping RET socket 3
> 3385 hping CALL setsockopt(0x3,SOL_SOCKET,SO_BROADCAST,0xbfbfe884,0x4)
> 3385 hping RET setsockopt 0
> 3385 hping CALL connect(0x3,0x8067da0,0x10)
> 3385 hping RET connect 0
> 3385 hping CALL getsockname(0x3,0xbfbfe874,0xbfbfe888)
> 3385 hping RET getsockname 0
> 3385 hping CALL close(0x3)
> 3385 hping RET close 0
> 3385 hping CALL socket(PF_INET,SOCK_RAW,IPPROTO_RAW)
> 3385 hping RET socket 3
> 3385 hping CALL setsockopt(0x3,SOL_SOCKET,SO_BROADCAST,0xbfbfe914,0x4)
> 3385 hping RET setsockopt 0
> 3385 hping CALL setsockopt(0x3,0,0x2,0xbfbfe914,0x4)
> 3385 hping RET setsockopt 0
> 3385 hping CALL open(0xbfbfe8a4,O_RDWR,<unused>0)
> 3385 hping NAMI "/dev/bpf0"
> 3385 hping RET open -1 errno 16 Device busy
> 3385 hping CALL open(0xbfbfe8a4,O_RDWR,<unused>0)
> 3385 hping NAMI "/dev/bpf1"
> 3385 hping RET open 4
OK, try adding the setsockopt(...SO_SNDBUF...) call.
Kris
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