Date: Fri, 25 Jan 2008 09:00:00 +0700 (WIT) From: "binto" <binto@triplegate.net.id> To: "Stefan Lambrev" <stefan.lambrev@moneybookers.com> Cc: freebsd-hackers@freebsd.org, Ivan Voras <ivoras@freebsd.org> Subject: Re: gettimeofday() in hping Message-ID: <11346.202.127.98.144.1201226400.squirrel@webmail.triplegate.net.id> In-Reply-To: <47988F12.2050303@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> <47986FDE.3030402@FreeBSD.org> <47988F12.2050303@moneybookers.com>
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Hi,
Sorry if a little bit insist & curious.
what is result from:
sysctl -a kern.ipc.maxsockbuf
sysctl -a net.inet.tcp.recvspace
sysctl -a net.inet.tcp.sendspace
??
binto
> Greetings,
>
> Kris Kennaway wrote:
>> 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.
> Will something like this do the trick?
>
> void socket_sndbuf(int sd)
> {
> long int bufsize;
> bufsize = 65536;
> if (setsockopt(sd, SOL_SOCKET, SO_SNDBUF,
> (char *)&bufsize, sizeof(int)) == -1)
> {
> printf("[socket_sndbuf] can't set SO_SNDBUF option\n");
> }
> }
>
> I'm not a C developer so pardon me if I made something stupid :)
> Also how can I make bufsize = default settings*2 for example?
>
> I tried this code and here is what ktrace show now:
> 65372 hping3 CALL socket(PF_INET,SOCK_DGRAM,IPPROTO_IP)
> 65372 hping3 RET socket 3
> 65372 hping3 CALL
> setsockopt(0x3,SOL_SOCKET,SO_BROADCAST,0xbfbfe844,0x4)
> 65372 hping3 RET setsockopt 0
> 65372 hping3 CALL connect(0x3,0x8067e20,0x10)
> 65372 hping3 RET connect 0
> 65372 hping3 CALL getsockname(0x3,0xbfbfe834,0xbfbfe848)
> 65372 hping3 RET getsockname 0
> 65372 hping3 CALL close(0x3)
> 65372 hping3 RET close 0
> 65372 hping3 CALL socket(PF_INET,SOCK_RAW,IPPROTO_RAW)
> 65372 hping3 RET socket 3
> 65372 hping3 CALL
> setsockopt(0x3,SOL_SOCKET,SO_BROADCAST,0xbfbfe8d4,0x4)
> 65372 hping3 RET setsockopt 0
> 65372 hping3 CALL setsockopt(0x3,0,0x2,0xbfbfe8d4,0x4)
> 65372 hping3 RET setsockopt 0
> 65372 hping3 CALL setsockopt(0x3,SOL_SOCKET,SO_SNDBUF,0xbfbfe8d4,0x4)
> 65372 hping3 RET setsockopt 0
>
>>
>> Kris
>> _______________________________________________
>> freebsd-hackers@freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
>> To unsubscribe, send any mail to
>> "freebsd-hackers-unsubscribe@freebsd.org"
>
> --
>
> Best Wishes,
> Stefan Lambrev
> ICQ# 24134177
>
> _______________________________________________
> freebsd-hackers@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
> To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"
>
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