May 2010 - Darwin-dev - lists.apple.com

Re: Using SystemConfiguration API inside KEXT
by Jean-Daniel Dupas 11 May '10

11 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com #include <Framework_name/Header_filename.h> #import <Framework_name/Header_filename.h> #include <AddressBook/AddressBook.h> #import <AddressBook/AddressBook.h> _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Using SystemConfiguration API inside KEXT
by John B Brown 11 May '10

11 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.7) Gecko/20100111 Thunderbird/3.0.1 Actually, that include will find and use NONE of them. (3): % locate SystemConfiguration.h /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/System/Library/Frameworks/SystemConfiguration.framework/Headers/SystemConfiguration.h /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.2.sdk/System/Library/Frameworks/SystemConfiguration.framework/Headers/SystemConfiguration.h /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.3.sdk/System/Library/Frameworks/SystemConfiguration.framework/Headers/SystemConfiguration.h /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.sdk/System/Library/Frameworks/SystemConfiguration.framework/Headers/SystemConfiguration.h /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.2.sdk/System/Library/Frameworks/SystemConfiguration.framework/Headers/SystemConfiguration.h /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.0.sdk/System/Library/Frameworks/SystemConfiguration.framework/Headers/SystemConfiguration.h /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.1.2.sdk/System/Library/Frameworks/SystemConfiguration.framework/Headers/SystemConfiguration.h /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.1.3.sdk/System/Library/Frameworks/SystemConfiguration.framework/Headers/SystemConfiguration.h /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.1.sdk/System/Library/Frameworks/SystemConfiguration.framework/Headers/SystemConfiguration.h /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.2.sdk/System/Library/Frameworks/SystemConfiguration.framework/Headers/SystemConfiguration.h /Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks/SystemConfiguration.framework/Versions/A/Headers/SystemConfiguration.h /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/SystemConfiguration.framework/Versions/A/Headers/SystemConfiguration.h /Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/SystemConfiguration.framework/Versions/A/Headers/SystemConfiguration.h /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/Headers/SystemConfiguration.h Shalom, John B. Brown. [jbb(a)vcn.com] 358 High Street, Buffalo, Wyoming 82834 "Freedom is not worth having if it does not include the freedom to make mistakes" Mahatma Gandhi "If any question why we died, tell them, because our fathers lied." Rudyard Kipling "A man who does not know the truth is just an idiot but a man who knows the truth and calls it a lie is a crook." Bertolt Brecht "I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it." Mark Twain _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Which one of all these will <SystemConfiguration/SystemConfiguration.h> find and use? This email sent to site_archiver(a)lists.apple.com

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Re: Using SystemConfiguration API inside KEXT
by Jean-Daniel Dupas 11 May '10

11 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Le 11 mai 2010 à 18:32, John B Brown a écrit : > Dear Jean-Daniel, > > The directive was very specific; > > "<SystemConfiguration/SystemConfiguration.h>" > > which means if such a specific LOCATION does not exist the header file will NOT be found no matter where in the /Developer tree, or even in ANY tree, 'SystemConfiguration.h' might be. > > Computers only do what they are told. They can not magically know what you "really" want. > Try to following: Create a text file (include.c for example) with the following text: ------------------------------------------------ include.c #include <SystemConfiguration/SystemConfiguration.h> int main(int argc, char **argv) { } ------------------------------------------------------------ Now, just try the following command on it: gcc include.c And see that even if a compiler cannot magically find the header, it successfully compiles this file. There is nothing magic here, as I said earlier, this syntax in the only valid syntax to include a framework header. If you want to know what a framework is and how to use it, just read the doc: http://developer.apple.com/mac/library/documentation/MacOSX/Conceptual/BPFr… Regards -- Jean-Daniel > Shalom, > > John B. Brown. > [jbb(a)vcn.com] > 358 High Street, > Buffalo, Wyoming > 82834 > > "Freedom is not worth having if it does not include > the freedom to make mistakes" Mahatma Gandhi > "If any question why we died, tell them, > because our fathers lied." Rudyard Kipling > "A man who does not know the truth is just an idiot > but a man who knows the truth and calls it a lie > is a crook." Bertolt Brecht > "I wonder whether the world is being run > by smart people who are putting us on > or by imbeciles who really mean it." Mark Twain > > On 5/11/10 10:18 AM, Jean-Daniel Dupas wrote: >> >> Le 11 mai 2010 à 18:11, John B Brown a écrit : >> >>> Unless you have a sub-directory under /usr/include/ called /usr/include/SystemConfiguration/ your call will not find any files in that directory using #include<SystemConfiguration/SystemConfiguration.h> as the #include directive. >>> >> >> We are talking about Mac OS X development. >> AFAIK, all Mac OS X compilers know how to handle a framework and know how to find a header in a Framework bundle. >> This include directive is perfectly valid, or would be if it was an user space program, but Kernel Extension can't use user space framework, so whatever (useless) compiler flag you add, it will not works. >> >> -- Jean-Daniel >> >>> On my machine running Mac OS 10.6.3 and Xcode 3.2.2 the only files SystemConfiguration.h are in sub-directories "Headers" in all cases, not in any sub-directory "SystemConfiguration." >>> >>> Use findutils! Set your #include accordingly. It might help also to use '-I"some tree"' in your C flags to the compiler, like >>> >>> -I/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks\/SystemConfiguration.framework/Versions/A/Headers >>> >>> or wherever 'locate SytemConfiguration.h' finds that you like and that is found on your system. >>> >>> You might have to go to [ftp://ftp.gnu.org/gnu/] to find a real working source for findutils; the piece of crap Apple gives you in their system load is just that, a piece of crap. You have practically zero control over what it finds when their version of 'updatedb' runs. Needless to say, updatedb does NOT exist in your path so you must go to some considerable trouble to run it whenever you wish. >>> >>> By the way, is your NKE a sneaker control, a navigation system, or some sort of motion detector? >>> >>> On 5/11/10 9:11 AM, Andy Huang wrote: >>>> Hi, >>>> >>>> I am developing a NKE. Now I need to call SystemConfiguration framework API >>>> to find primary interface. When I tried to include >>>> <SystemConfiguration/SystemConfiguration.h>, I always get compiliation error >>>> saying not able to find the header file. Any ideas? TIA. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Using SystemConfiguration API inside KEXT
by John B Brown 11 May '10

11 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.7) Gecko/20100111 Thunderbird/3.0.1 Dear Jean-Daniel, The directive was very specific; "<SystemConfiguration/SystemConfiguration.h>" Shalom, John B. Brown. [jbb(a)vcn.com] 358 High Street, Buffalo, Wyoming 82834 "Freedom is not worth having if it does not include the freedom to make mistakes" Mahatma Gandhi "If any question why we died, tell them, because our fathers lied." Rudyard Kipling "A man who does not know the truth is just an idiot but a man who knows the truth and calls it a lie is a crook." Bertolt Brecht "I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it." Mark Twain Le 11 mai 2010 à 18:11, John B Brown a écrit : Unless you have a sub-directory under /usr/include/ called /usr/include/SystemConfiguration/ your call will not find any files in that directory using #include<SystemConfiguration/SystemConfiguration.h> as the #include directive. We are talking about Mac OS X development. AFAIK, all Mac OS X compilers know how to handle a framework and know how to find a header in a Framework bundle. This include directive is perfectly valid, or would be if it was an user space program, but Kernel Extension can't use user space framework, so whatever (useless) compiler flag you add, it will not works. -- Jean-Daniel On my machine running Mac OS 10.6.3 and Xcode 3.2.2 the only files SystemConfiguration.h are in sub-directories "Headers" in all cases, not in any sub-directory "SystemConfiguration." Use findutils! Set your #include accordingly. It might help also to use '-I"some tree"' in your C flags to the compiler, like -I/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks\/SystemConfiguration.framework/Versions/A/Headers or wherever 'locate SytemConfiguration.h' finds that you like and that is found on your system. You might have to go to [ftp://ftp.gnu.org/gnu/] to find a real working source for findutils; the piece of crap Apple gives you in their system load is just that, a piece of crap. You have practically zero control over what it finds when their version of 'updatedb' runs. Needless to say, updatedb does NOT exist in your path so you must go to some considerable trouble to run it whenever you wish. By the way, is your NKE a sneaker control, a navigation system, or some sort of motion detector? Hi, I am developing a NKE. Now I need to call SystemConfiguration framework API to find primary interface. When I tried to include <SystemConfiguration/SystemConfiguration.h>, I always get compiliation error saying not able to find the header file. Any ideas? TIA. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… which means if such a specific LOCATION does not exist the header file will NOT be found no matter where in the /Developer tree, or even in ANY tree, 'SystemConfiguration.h' might be. Computers only do what they are told. They can not magically know what you "really" want. On 5/11/10 10:18 AM, Jean-Daniel Dupas wrote: On 5/11/10 9:11 AM, Andy Huang wrote: This email sent to site_archiver(a)lists.apple.com

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Re: Using SystemConfiguration API inside KEXT
by Eli Bach 11 May '10

11 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:subject:mime-version :content-type:from:in-reply-to:date:content-transfer-encoding :message-id:references:to:x-mailer; bh=zA6m3mjaE18FeTLaHkrPe4IoZhQk9V6b8e++cHbCyxc=; b=w7jqWx08PuuuVs7ILAvmGY3J77ORCFwhRx7knJ76UiQ3oGVQtGLNuxj6zAHLLIN9tj vvSJ7hPDnjyHQJenKND1Mix43da649D4nPXfBxFsY+TE6er4JBTd9EeMJtMW2jxGkhv+ 6z1KJJ+aJImrQvc7V4ynFKQHtrIAZTd2OrF/w= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:mime-version:content-type:from:in-reply-to:date :content-transfer-encoding:message-id:references:to:x-mailer; b=POgmikU55zB4ZodHNnnytIRDEPaMdW1wpQiRBi+8QSsypLyFQcLKP06a/OX9lpOL56 2dktDffN7ro6aNZr+R30poE/iYuf8Qad72swiVWAXdANLsvO31YIyXKYRE37yLGxpHLn tW7jlS18gzEXJbbqZe7VDphUEOlAEaGzbrDF8= On May 11, 2010, at 9:11 AM, Andy Huang wrote: > Hi, > > I am developing a NKE. Now I need to call SystemConfiguration framework API > to find primary interface. When I tried to include > <SystemConfiguration/SystemConfiguration.h>, I always get compiliation error > saying not able to find the header file. Any ideas? TIA. Andy, SystemConfiguration is not available for kernel extensions directly. If you MUST do this, the common workaround is to have a separate user-space daemon that gets/sets whatever you need as a proxy for the kernel extension. Of course, I am leaving the work of coordinating the kext and the daemon as an trivial exercise for the reader... Same goes for your other question about the primary networking interface. Eli _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Make build with static library on 10.4
by Andy Wiese 11 May '10

11 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On May 11, 2010, at 4:19 AM, Jonas Maebe wrote: On 11 May 2010, at 09:10, Andy Wiese wrote: Jonas _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… I'm sure there is a very small audience for workarounds to makefiles for 10.4, but for the sake of the archives, here is the solution I found, and it was absolutely painful. I got it to work in Xcode, then did a reverse engineer of the Xcode build commands grabbed from the build results window. What I found is that linking would break if I included the object files in a particular order. This does not happen on 10.5, 10.6 or FreeBSD, so I assume this must be a bug that was fixed along the way. It's not a bug per se. The problem was that the Xcode linker processed the object files and static libraries on the command line once and in order. When encountering a static library, it would only link those object files from the library that contained definitions for external symbols encountered up to that point. This was documented behaviour and afaik there are more linkers out there with this behaviour (possibly even older versions of GNU ld). The linker was indeed changed in 10.5 to keep resolving undefined symbols in all object files and libraries until no new ones are found anymore. Thanks that's nice to know. I have never encountered that situation before, probably just by chance. Andy This email sent to site_archiver(a)lists.apple.com

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Re: Using SystemConfiguration API inside KEXT
by Jean-Daniel Dupas 11 May '10

11 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Le 11 mai 2010 à 18:11, John B Brown a écrit : > Unless you have a sub-directory under /usr/include/ called /usr/include/SystemConfiguration/ your call will not find any files in that directory using #include <SystemConfiguration/SystemConfiguration.h> as the #include directive. > We are talking about Mac OS X development. AFAIK, all Mac OS X compilers know how to handle a framework and know how to find a header in a Framework bundle. This include directive is perfectly valid, or would be if it was an user space program, but Kernel Extension can't use user space framework, so whatever (useless) compiler flag you add, it will not works. -- Jean-Daniel > On my machine running Mac OS 10.6.3 and Xcode 3.2.2 the only files SystemConfiguration.h are in sub-directories "Headers" in all cases, not in any sub-directory "SystemConfiguration." > > Use findutils! Set your #include accordingly. It might help also to use '-I"some tree"' in your C flags to the compiler, like > > -I/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks\/SystemConfiguration.framework/Versions/A/Headers > > or wherever 'locate SytemConfiguration.h' finds that you like and that is found on your system. > > You might have to go to [ftp://ftp.gnu.org/gnu/] to find a real working source for findutils; the piece of crap Apple gives you in their system load is just that, a piece of crap. You have practically zero control over what it finds when their version of 'updatedb' runs. Needless to say, updatedb does NOT exist in your path so you must go to some considerable trouble to run it whenever you wish. > > By the way, is your NKE a sneaker control, a navigation system, or some sort of motion detector? > > On 5/11/10 9:11 AM, Andy Huang wrote: >> Hi, >> >> I am developing a NKE. Now I need to call SystemConfiguration framework API >> to find primary interface. When I tried to include >> <SystemConfiguration/SystemConfiguration.h>, I always get compiliation error >> saying not able to find the header file. Any ideas? TIA. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Using SystemConfiguration API inside KEXT
by John B Brown 11 May '10

11 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.7) Gecko/20100111 Thunderbird/3.0.1 -I/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks\/SystemConfiguration.framework/Versions/A/Headers Hi, I am developing a NKE. Now I need to call SystemConfiguration framework API to find primary interface. When I tried to include <SystemConfiguration/SystemConfiguration.h>, I always get compiliation error saying not able to find the header file. Any ideas? TIA. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/jbb%40vcn.com Shalom, John B. Brown. [jbb(a)vcn.com] 358 High Street, Buffalo, Wyoming 82834 "Freedom is not worth having if it does not include the freedom to make mistakes" Mahatma Gandhi "If any question why we died, tell them, because our fathers lied." Rudyard Kipling "A man who does not know the truth is just an idiot but a man who knows the truth and calls it a lie is a crook." Bertolt Brecht "I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it." Mark Twain _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… Unless you have a sub-directory under /usr/include/ called /usr/include/SystemConfiguration/ your call will not find any files in that directory using #include <SystemConfiguration/SystemConfiguration.h> as the #include directive. On my machine running Mac OS 10.6.3 and Xcode 3.2.2 the only files SystemConfiguration.h are in sub-directories "Headers" in all cases, not in any sub-directory "SystemConfiguration." Use findutils! Set your #include accordingly. It might help also to use '-I"some tree"' in your C flags to the compiler, like or wherever 'locate SytemConfiguration.h' finds that you like and that is found on your system. You might have to go to [ftp://ftp.gnu.org/gnu/] to find a real working source for findutils; the piece of crap Apple gives you in their system load is just that, a piece of crap. You have practically zero control over what it finds when their version of 'updatedb' runs. Needless to say, updatedb does NOT exist in your path so you must go to some considerable trouble to run it whenever you wish. By the way, is your NKE a sneaker control, a navigation system, or some sort of motion detector? On 5/11/10 9:11 AM, Andy Huang wrote: This email sent to jbb(a)vcn.com This email sent to site_archiver(a)lists.apple.com

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Re: How can I find primary network interface name in the NKE
by Shantonu Sen 11 May '10

11 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com "Primary" is meaningless in the age of VPNs and multiple routable interfaces, not to mention IPv6. What are you really trying to do? Shantonu Sent from my MacBook On May 11, 2010, at 8:52 AM, Andy Huang wrote: > I am trying to develop a NKE, and need to find the primary network interface name? How do I do that? TIA. > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/darwin-dev/ssen%40apple.com > > This email sent to ssen(a)apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re: Using SystemConfiguration API inside KEXT
by Shantonu Sen 11 May '10

11 May '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com You cannot do this. Shantonu Sent from my MacBook On May 11, 2010, at 8:11 AM, Andy Huang wrote: > Hi, > > I am developing a NKE. Now I need to call SystemConfiguration framework API to find primary interface. When I tried to include <SystemConfiguration/SystemConfiguration.h>, I always get compiliation error saying not able to find the header file. Any ideas? TIA. > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/darwin-dev/ssen%40apple.com > > This email sent to ssen(a)apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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