August 2005 - Darwin-kernel

IOSCSIArchitectureModelFamily-140.1.7
by Herb Petschauer 12 Aug '05

12 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=eQSjPaZVmhFsMjzMwLIJ3cwvKk+Ow/2vuOaKLmn8tppbzPXx260m9X2bzyx6+E1lcdmwTGY6yo4Iz4Nf4tqaSQcsisGRY3XmCUoFZYhEMEwBXiBywXw+sLFfMOnVkoX2a625kyxfkUAQKDzONKX8ogk/rBUTH69N3E53uAMNK3s= I haven't seen or been able to find a question on this, apologies if it has been addressed already. I'm looking for IOSCSIArchitectureModelFamily-140.1.7, I get the "Download Unavailable" message when I try and download it from "Darwin". It's difficult to build IOSCSIParallelController without it ;-) Is it just me? Cheers, Thanks! H. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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about Registry error
by jackie xie 12 Aug '05

12 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=DQSE0+h2JPYLr1r98dgLQ0mjHGeLgdedIeoV23m3hCURd4BcVc5uoVpypok7mE0Cu2Kwnqb+Mrr65ktp21MfhcTcMN3RDkqibRrQq4kDaRVWJc3oHjscThN5c37pvYLwedtxM8gHIR5XrFs6p4Ga2N9jA4AMJZfFUjAKPD1RxO8= _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: Problem regarding IOMemoryDescriptor ::writeBytes()
by Herb Petschauer 11 Aug '05

11 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=VpOwKTqYh/wWtQa/NkVNCAGx3TDmq9c5cR1OTzpngu0cAyjOU+euimcues8YgrwHEGiR5cWrKO/RmZneQmOhGm1z6qKqSSiNnsnHWTbUCGZz7EagYoHPZorxz2U63VBdkW32YsdikcViWM4pPtnkuQhlJQdP9HLBzQ5u0u3Jt/U= Just a quick guess. Have you tried kIODirectionInOut? IOMemoryDescriptor::writeBytes(...) has the following code: if ( (kIOMemoryPreparedReadOnly & _flags) || offset >= _length) { IOLog("IOGMD(%p): wB = o%lx, l%lx\n", this, offset, length); // @@@ gvdl return 0; } [I found it by doing a grep -rsI "IOGMD" in the xnu directory of the source] Cheers, H. On 8/11/05, santosh katvate <santosh.nk(a)gmail.com> wrote: > Hello everybody > > I am not able to write in IOMemoryDescriptor buffer using the > writeBytes function. > But i am able to read from it using readBytes function. > > The return value is coming out to be 0 > and it is giving error in log file as > IOGMD(0xaddr):wB=o0,l4 > > What is the cause of the problem. > > The code is given below > > > IOMemoryDescriptor *buffer = IOBufferMemoryDescriptor::withCapacity > (LengthToWrite, kIODirectionOut); > buffer->prepare (kIODirectionOut); > > UInt32* testtemp=(UInt32*)IOMalloc(4); > > ByteCount1=buffer->readBytes(0,testtemp,4); > IOLog("ByteCount1=%d\n",ByteCount1 ); > > ByteCount2 = buffer->writeBytes (0, pMyBuffer, 4); > IOLog("ByteCount2=%d\n",ByteCount2 ); > > > Output in system.log is > > ByteCount1=4 > ByteCount2=0 > > > Thanking in Advance > santosh k > > > -- > Life is Small and Lots of Things to Learn > Lets Share the Knowledge > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/darwin-kernel/bogvardi%40gmail.com > > This email sent to bogvardi(a)gmail.com > _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: Dotted decimal to long conversion?
by Josh Graessley 11 Aug '05

11 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com -josh On Aug 11, 2005, at 10:26 AM, Mike Smith wrote: On Aug 10, 2005, at 6:23 PM, Allan Hoeltje wrote: = Mike This email sent to jgraessley(a)apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com What Mike says is correct. Don't do something inside the kernel unless you absolutely can't do it anywhere else. Having said that, there is an inet_aton available in the kernel. inet_ntop is also available. Sorry if this is a dumb question but why shouldn't I be doing this in the kernel? Can you be a little more specific? There are lots of things that shouldn't be done in the kernel; as a general rule, anything that can be done outside the kernel should not be done inside. Any time you find yourself thinking "this would be so much easier if I could read or write a file, or use this library function, or run this other program" you should rethink whether you want to be doing what you're doing inside the kernel at all. My situation is I am examining SIP packets which contain an IP address in dotted decimal string form. I want to be able to now monitor IP packets that have that specific address in the source IP address field. How else do I get from dotted string to in_addr_t? Is there any reason that you need to do this in the kernel? Why not use BPF for your filtering and do the rest of your work entirely in user space? _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/jgraessley% 40apple.com smime.p7s

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Re: Dotted decimal to long conversion?
by Mike Smith 11 Aug '05

11 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Aug 10, 2005, at 6:23 PM, Allan Hoeltje wrote: = Mike _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… Sorry if this is a dumb question but why shouldn't I be doing this in the kernel? Can you be a little more specific? There are lots of things that shouldn't be done in the kernel; as a general rule, anything that can be done outside the kernel should not be done inside. Any time you find yourself thinking "this would be so much easier if I could read or write a file, or use this library function, or run this other program" you should rethink whether you want to be doing what you're doing inside the kernel at all. My situation is I am examining SIP packets which contain an IP address in dotted decimal string form. I want to be able to now monitor IP packets that have that specific address in the source IP address field. How else do I get from dotted string to in_addr_t? Is there any reason that you need to do this in the kernel? Why not use BPF for your filtering and do the rest of your work entirely in user space? This email sent to site_archiver(a)lists.apple.com

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Re: Dotted decimal to long conversion?
by Peter Lovell 11 Aug '05

11 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Regards.....Peter On Aug 10, 2005, at 9:23 PM, Allan Hoeltje wrote: -Allan "Mike Smith" <drivers(a)mu.org> wrote on 8/10/05 5:16 PM: You might also consider ascii2addr() In any case, you don't want to be doing this inside the kernel. Prepare a sockaddr_t or similar in userland; this allows you to support resolution by name as well as address, which is a highly preferable behaviour. = Mike _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… I suspect that he really meant that it would be better not to do it in the kernel if it can be avoided. Obviously, sometimes you can't avoid it. In the kernel you have to be a lot more careful about validating the input characters and length etc etc etc. So, avoid it if you can and be extra careful if you can't. Sorry if this is a dumb question but why shouldn't I be doing this in the kernel? Can you be a little more specific? My situation is I am examining SIP packets which contain an IP address in dotted decimal string form. I want to be able to now monitor IP packets that have that specific address in the source IP address field. How else do I get from dotted string to in_addr_t? This email sent to site_archiver(a)lists.apple.com

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Problem regarding IOMemoryDescriptor ::writeBytes()
by santosh katvate 11 Aug '05

11 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=E4uZHscH9OATzFcOjVjR1d/D++g8JKQuI4IdJR0ckByiz7etiA3hFgVlhnT8Te1YiqOXxiPKxs4Z3FzCi+uVrx/ubRn968iTfdePZ2r1WpBDzWkwdF2wuKCVaS01H2INmrSuFPfnRgsG4hYozQadTvNxPyDgN9TFeW3XH46ShAc= Hello everybody I am not able to write in IOMemoryDescriptor buffer using the writeBytes function. But i am able to read from it using readBytes function. The return value is coming out to be 0 and it is giving error in log file as IOGMD(0xaddr):wB=o0,l4 What is the cause of the problem. The code is given below IOMemoryDescriptor *buffer = IOBufferMemoryDescriptor::withCapacity (LengthToWrite, kIODirectionOut); buffer->prepare (kIODirectionOut); UInt32* testtemp=(UInt32*)IOMalloc(4); ByteCount1=buffer->readBytes(0,testtemp,4); IOLog("ByteCount1=%d\n",ByteCount1 ); ByteCount2 = buffer->writeBytes (0, pMyBuffer, 4); IOLog("ByteCount2=%d\n",ByteCount2 ); Output in system.log is ByteCount1=4 ByteCount2=0 Thanking in Advance santosh k -- Life is Small and Lots of Things to Learn Lets Share the Knowledge _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: change boot partition from command line
by Quinn 11 Aug '05

11 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com You should also investigate bless <x-man-page://1/bless>. S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Technical Support * Networking, Communications, Hardware _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… At 22:12 -0700 10/8/05, Shawn Erickson wrote: One way is to use nvram (man nvram) and muck with boot-device but only do so if you know what you are doing :) Likely some other better way exists... are you using Mac OS X, Mac OS X Server, or Darwin? This email sent to site_archiver(a)lists.apple.com

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Re: change boot partition from command line
by Shawn Erickson 11 Aug '05

11 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Aug 10, 2005, at 9:33 PM, Herbert wrote: Likely darwinos-users [1] is a better list for this. -Shawn [1] <http://www.lists.apple.com/mailman/listinfo/darwinos-users> _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… can it be done? if so, how? One way is to use nvram (man nvram) and muck with boot-device but only do so if you know what you are doing :) Likely some other better way exists... are you using Mac OS X, Mac OS X Server, or Darwin? maybe not the right mailing list but I don't know a better one. This email sent to site_archiver(a)lists.apple.com

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change boot partition from command line
by Herbert 11 Aug '05

11 Aug '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com can it be done? if so, how? maybe not the right mailing list but I don't know a better one. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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