From owner-freebsd-hackers@FreeBSD.ORG Thu Jan 24 13:14:19 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3FDB516A419; Thu, 24 Jan 2008 13:14:19 +0000 (UTC) (envelope-from stefan.lambrev@moneybookers.com) Received: from blah.sun-fish.com (blah.sun-fish.com [217.18.249.150]) by mx1.freebsd.org (Postfix) with ESMTP id B529713C457; Thu, 24 Jan 2008 13:14:18 +0000 (UTC) (envelope-from stefan.lambrev@moneybookers.com) Received: by blah.sun-fish.com (Postfix, from userid 1002) id 7BA0D1B10EDC; Thu, 24 Jan 2008 14:14:17 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on blah.cmotd.com X-Spam-Level: X-Spam-Status: No, score=-10.6 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.2.3 Received: from hater.haters.org (hater.cmotd.com [192.168.3.125]) by blah.sun-fish.com (Postfix) with ESMTP id 10F1D1B10EA4; Thu, 24 Jan 2008 14:14:14 +0100 (CET) Message-ID: <47988F12.2050303@moneybookers.com> Date: Thu, 24 Jan 2008 15:13:54 +0200 From: Stefan Lambrev User-Agent: Thunderbird 2.0.0.9 (X11/20071120) MIME-Version: 1.0 To: Kris Kennaway References: <4795CC13.7080601@moneybookers.com> <4795FE54.9090606@moneybookers.com> <86lk6i0vzk.fsf@ds4.des.no> <479605E2.6070709@moneybookers.com> <47964356.6030602@moneybookers.com> <479647FB.3070909@FreeBSD.org> <47970EE2.5000400@moneybookers.com> <479754E6.1060101@moneybookers.com> <9bbcef730801230802n5c52832bk60c6afc47be578f4@mail.gmail.com> <479794DB.4020504@FreeBSD.org> <47985936.2030705@moneybookers.com> <47986FDE.3030402@FreeBSD.org> In-Reply-To: <47986FDE.3030402@FreeBSD.org> Content-Type: text/plain; charset=windows-1251; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.91.2/5544/Thu Jan 24 12:02:44 2008 on blah.cmotd.com X-Virus-Status: Clean Cc: freebsd-hackers@freebsd.org, Ivan Voras Subject: Re: gettimeofday() in hping X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Jan 2008 13:14:19 -0000 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,0) >> 3385 hping NAMI "/dev/bpf0" >> 3385 hping RET open -1 errno 16 Device busy >> 3385 hping CALL open(0xbfbfe8a4,O_RDWR,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