November 2010 - Darwin-kernel

Re: Physical address returned by IODMACommand exceeds hw.memsize
by Michael Smith 29 Nov '10

29 Nov '10

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Physical address returned by IODMACommand exceeds hw.memsize
by Maxim Zhuravlev 29 Nov '10

29 Nov '10

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type; bh=jQlf7LwIuAPFgF7fUsVSOpXVbcVPnQFxNTpeZGUhFIU=; b=i7NIWO5lQfDNkWIJIGd13knOLHQ9Aw2DZ+ffWCANhlE6+K3GCjsemCxPwI9SKV+F6q jBqsJuP2sAQcZxvUY9qyeTecYI35dwmVZw/bRNweuIQpDJKPT2eV8WQTi4tOutPGfOtX JYc3amemdwH7GaEXLKolphhUwh4eRXrXKyino= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=Y3VEek66xHHkttNIs9Dxq9Mf3E4UIgW8c8y5Jkggj6Waeli+gYQ6rvlGbiBabo4cvD jRrI6IgHmgMn4IJyzWHLA/EwTiit9kdY3jUepH3ndTNOn97qxMWGbrb3pRA5r/MtCF2k DzFAvsnbbuwu4i0Flrmod3lHi9ostf04Gdf+s= Hi, consider the following code: void* allocPage(uint64_t* phys_addr) { void* result = NULL; IOBufferMemoryDescriptor* descriptor = NULL; descriptor = IOBufferMemoryDescriptor::withOptions( kIODirectionInOut|kIOMemoryPhysicallyContiguous, page_size, page_size); descriptor->prepare(); *phys_addr = -1; IODMACommand* dma = IODMACommand::withSpecification(kIODMACommandOutputHost64, 64, 0, IODMACommand::kMapped, 0, 1); if (kIOReturnSuccess == dma->setMemoryDescriptor(descriptor)) { IODMACommand::Segment64 segments[1]; UInt32 numSegments = 1; UInt64 offset = 0; if (kIOReturnSuccess == dma->gen64IOVMSegments(&offset, segments, &numSegments)) *phys_addr = segments[0].fIOVMAddr; dma->clearMemoryDescriptor(); } dma->release(); result = descriptor->getBytesNoCopy(); IOLog("virtual address 0x%016llx(%llu) is mapped to physical address 0x%016llx(%lld)\n", result, result, *phys_addr, *phys_addr); return result; } On a MacPro4,1 with OSX 10.6.4, 6gb of ram installed (hw.memsize: 6442450944) and boot-args="debug=0x14e arch=x86_64 himemory_mode=2 dart=0": virtual address 0xffffff8087c35000(18446743526231461888) is mapped to physical address 0x00000001f202b000(8355229696) virtual address 0xffffff8087c3e000(18446743526231498752) is mapped to physical address 0x00000001f22ac000(8357855232) virtual address 0xffffff8087c45000(18446743526231527424) is mapped to physical address 0x00000001f1d2d000(8352092160) virtual address 0xffffff8087c46000(18446743526231531520) is mapped to physical address 0x00000001f1eae000(8353669120) Well, everything works just fine, so I'm just curious, where does this extra memory come from? Thanks in advance. _______________________________________________ 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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unsubscribe
by Brian Dols 25 Nov '10

25 Nov '10

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com User-agent: Mutt/1.5.9i On Thu, Nov 25, 2010 at 12:05:37PM -0800, darwin-kernel-request(a)lists.apple.com wrote: > Send Darwin-kernel mailing list submissions to > darwin-kernel(a)lists.apple.com > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.apple.com/mailman/listinfo/darwin-kernel > or, via email, send a message with subject or body 'help' to > darwin-kernel-request(a)lists.apple.com > > You can reach the person managing the list at > darwin-kernel-owner(a)lists.apple.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Darwin-kernel digest..." > > > Today's Topics: > > 1. Determine process (name/PID) from NKE filter driver > (eveningnick eveningnick) > 2. Re: Determine process (name/PID) from NKE filter driver > (Quinn "The Eskimo!") > 3. Re: Determine process (name/PID) from NKE filter driver > (Athanasios Douitsis) > 4. Re: Determine process (name/PID) from NKE filter driver > (Josh Graessley) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 25 Nov 2010 00:30:56 +0200 > From: eveningnick eveningnick <eveningnick(a)gmail.com> > Subject: Determine process (name/PID) from NKE filter driver > To: darwin-kernel(a)lists.apple.com > Message-ID: > <AANLkTikzCUA+Vg_d0ihUkYVbEt1Tr6F35_S3s3+24DNM(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Hello! > Is there a way to determine, which process tried to establish > connection from an NKE driver, and if doesnt satisfy some condition > (in my case - process name for example), deny the request? And, if > yes, how could i be done? > What should i read, to do this task? I am a newbie in BSD kernel > programming, but there should be something to start with :) > Thank you! > > > ------------------------------ > > Message: 2 > Date: Wed, 24 Nov 2010 22:39:14 +0000 > From: "Quinn \"The Eskimo!\"" <eskimo1(a)apple.com> > Subject: Re: Determine process (name/PID) from NKE filter driver > To: darwin-kernel(a)lists.apple.com > Message-ID: <B27D168A-0471-4E7F-B1FA-D8CBA2F9D774(a)apple.com> > Content-Type: text/plain; charset=us-ascii > > > On 24 Nov 2010, at 22:30, eveningnick eveningnick wrote: > > > Is there a way to determine, which process tried to establish > > connection from an NKE driver > > What type of NKE? A socket filter NKE can reasonably get this information, but that's not true for other NKEs. > > S+E > -- > Quinn "The Eskimo!" <http://www.apple.com/developer/> > Apple Developer Relations, Developer Technical Support, Core OS/Hardware > > > > > ------------------------------ > > Message: 3 > Date: Thu, 25 Nov 2010 01:49:43 +0200 > From: Athanasios Douitsis <aduitsis(a)gmail.com> > Subject: Re: Determine process (name/PID) from NKE filter driver > To: eveningnick(a)gmail.com > Cc: darwin-kernel(a)lists.apple.com > Message-ID: > <AANLkTinEO9MOP5Y1pafyt1vcHzso1H9riu=Tw+obApVf(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > On Thu, Nov 25, 2010 at 12:39 AM, Quinn "The Eskimo!" <eskimo1(a)apple.com>wrote: > > > > > On 24 Nov 2010, at 22:30, eveningnick eveningnick wrote: > > > > > Is there a way to determine, which process tried to establish > > > connection from an NKE driver > > > > What type of NKE? A socket filter NKE can reasonably get this information, > > but that's not true for other NKEs. > > > > S+E > > -- > > Quinn "The Eskimo!" <http://www.apple.com/developer/> > > Apple Developer Relations, Developer Technical Support, Core OS/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/aduitsis%40gmail.com > > > > > Hi, > > Might I add that the excellent > tcplognke<http://developer.apple.com/library/mac/#samplecode/tcplognke/Introduction/I…>example > mentions the use of proc_selfpid at tcplognke:833. Look up proc_self > (must be freed with proc_rele afterwards), proc_selfpid, proc_selfname (but > read this: > http://lists.apple.com/archives/darwin-kernel/2008/Mar/msg00086.html) > > > Best Regards, > Athanasios >

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Re: Determine process (name/PID) from NKE filter driver
by Josh Graessley 25 Nov '10

25 Nov '10

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Nov 24, 2010, at 2:39 PM, Quinn The Eskimo! wrote: > > On 24 Nov 2010, at 22:30, eveningnick eveningnick wrote: > >> Is there a way to determine, which process tried to establish >> connection from an NKE driver > > What type of NKE? A socket filter NKE can reasonably get this information, but that's not true for other NKEs. Also worth noting, even with a socket filter NKE, the current PID can be deceptive, especially for network file system sockets or sockets that are created for an incoming connection on a listening socket. -josh _______________________________________________ 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: Determine process (name/PID) from NKE filter driver
by Athanasios Douitsis 24 Nov '10

24 Nov '10

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Re: Determine process (name/PID) from NKE filter driver
by Quinn "The Eskimo!" 24 Nov '10

24 Nov '10

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On 24 Nov 2010, at 22:30, eveningnick eveningnick wrote: > Is there a way to determine, which process tried to establish > connection from an NKE driver What type of NKE? A socket filter NKE can reasonably get this information, but that's not true for other NKEs. S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Relations, Developer Technical Support, Core OS/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.… This email sent to site_archiver(a)lists.apple.com

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Determine process (name/PID) from NKE filter driver
by eveningnick eveningnick 24 Nov '10

24 Nov '10

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type; bh=ORlYxazJ8HDbGIcu3iNu2camUrtSxTAm19p5ztM82Ng=; b=WRDEHsgLrAP6krNktEa+dP+3oyGoDffDqq78DmFpL+ALO8JGICIT8LWO+Eea7HKg5q cNl6AKGNyecvldMsc0SStrUhyqIl3/zGgHJLNCHM6qC5BQ2kivbK2eN4GkZ0k3Gb/CWf 0bQzi89sC7NEDSzsooWH6wUmJEoAfyj5NrIEg= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=EGNkkSn4NWd7rCEBpItX1JzdofKxsLtmZ022b0TH9Q91OI/inJWMQqAb6y2sIQEqWR 109o2hX//UG/O3tJEVrgnl3cTYyfKYq02aoUFmepB7PJA9w2TbfxNS80h0I6wwVuytCr SgTBo/Ra+X2JJV29r8fdKEfjdpbgrOA/jDTCs= Hello! Is there a way to determine, which process tried to establish connection from an NKE driver, and if doesnt satisfy some condition (in my case - process name for example), deny the request? And, if yes, how could i be done? What should i read, to do this task? I am a newbie in BSD kernel programming, but there should be something to start with :) Thank you! _______________________________________________ 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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IOATAController and IOATAReg
by a2z 24 Nov '10

24 Nov '10

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about vnodewatcher
by sheetal phirke 22 Nov '10

22 Nov '10

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Re: KDK lost again
by William Siegrist 18 Nov '10

18 Nov '10

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Look under Downloads->Mac OS X on: http://connect.apple.com/ -Bill On Nov 17, 2010, at 9:28 PM, Godfrey van der Linden wrote: > I can't find the KDK downloads anymore on the developer website. Neither Apple's search nor googles can even find it. > > Where can I get the 10.6.4 and 10.6.5 KDKs? > > Any help will be appreciated. > > Godfrey > > _______________________________________________ > 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/wsiegrist%40apple.com > > This email sent to wsiegrist(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

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