March 2008 - Darwin-kernel - lists.apple.com

Re: IONetworkingFamily kext will not compile
by Ryan Chapman 28 Mar '08

28 Mar '08

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Re: IONetworkingFamily kext will not compile
by Peter Lovell 27 Mar '08

27 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Regards.....Peter _______________________________________________ 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.… On Mar 27, 2008, at 3:06 PM, Garth Cummings wrote: Better yet, you might want to investigate darwinbuild <http://trac.macosforge.org/projects/darwinbuild/ >. This tool manages all of the build dependencies for a Darwin project automatically. Garth's advice is indeed the way to go. Xcode to build the kernel is not. darwinbuild is your friend (with many thanks to kvv and other contributors) This email sent to site_archiver(a)lists.apple.com

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Re: IONetworkingFamily kext will not compile
by Garth Cummings 27 Mar '08

27 Mar '08

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Re: IONetworkingFamily kext will not compile
by Ryan Chapman 27 Mar '08

27 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.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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Re: communication from kext to user space application
by Garth Cummings 27 Mar '08

27 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Mar 27, 2008, at 10:08 AM, Andrew Gallatin wrote: --gc ____________________________________________________________________ Garth Cummings gcummings(a)apple.com Sr. Software Engineer Apple Developer Technical Support <http://developer.apple.com/technicalsupport> WWDC 2008 • June 9-13 • Moscone West • San Francisco, CA <http://developer.apple.com/wwdc/> _______________________________________________ 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.… Or you could use a sysctl node. Or a kernel control socket. See <http://developer.apple.com/samplecode/tcplognke > for an example. This email sent to site_archiver(a)lists.apple.com

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Re: communication from kext to user space application
by Andrew Gallatin 27 Mar '08

27 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com > So i definitely have to use some IOKit stuff even if do not deal with =20= > IO at all? I simply need to pass a c-string from my kext to user =20 > space. All this stuff seems to be a bit overkill for this task... > As you can guess i'm relatively new to this so any useful hint will be =20= No. You could create a character device and support read on it, or create an ioctl that copied the data to userspace. Or you could use a sysctl node. Drew _______________________________________________ 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: communication from kext to user space application
by Lutz Helwing 27 Mar '08

27 Mar '08

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Re: IONetworkingFamily kext will not compile
by Rick Macklem 27 Mar '08

27 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Wed, 26 Mar 2008, Ryan Chapman wrote: Hi all, I'm trying to compile IONetworkingFamily-46 as a kext, using Xcode 3.1 and OS X 10.5.2. This is my first attempt at compiling an Apple kext, so bear with me. I downloaded IONetworkingFamily-46.tar.gz from Apple's opensource website, untar'd, opened the project in Xcode and clicked Build. Build fails with the error: error: 'SIOCSIFDEVMTU' was not declared in this scope Look on developer.apple.com for "Kernel Extension Concepts" which does a good job of explaining building, etc ihmo. I think you'll be piddling with OSBundleLibraries in the Info.plist file, if it's like the generic Kext I build. If SIOCSIFDEVMTU isn't defined in any of the headers under /System/Library/Frameworks/Kernel.framework then either the code needs modification or you have to build the Kext against the entire kernel using xnu-1228 sources (not recommended and only for experimentation or open source projects). Good luck with it, rick _______________________________________________ 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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IONetworkingFamily kext will not compile
by Ryan Chapman 27 Mar '08

27 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.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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Re: communication from kext to user space application
by Garth Cummings 26 Mar '08

26 Mar '08

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi Lutz, On Mar 26, 2008, at 8:54 AM, Lutz Helwing wrote: Hi there, --gc ____________________________________________________________________ Garth Cummings gcummings(a)apple.com Sr. Software Engineer Apple Developer Technical Support <http://developer.apple.com/technicalsupport> WWDC 2008 • June 9-13 • Moscone West • San Francisco, CA <http://developer.apple.com/wwdc/> _______________________________________________ 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 have an already working kext which writes to syslog without any problems. However what i actually want is an application (maybe daemon) which receives this messages from my kext. I was thinking about reading from the syslog but this doesn't look like a very efficient and elegant solution. My question is: How can a kext pass messages to a user space application? Is there at least any documentation and/or examples on this or does anyone have a suggestion on how to start here? I assume that this is not such a big issue? But it's the only (and of course most important) part that is missing missing? Check out USBProberV2 in the IOUSBFamily sources. It has everything you need to log messages from a kext in a userland process. This email sent to site_archiver(a)lists.apple.com

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