January 2011 - Darwin-kernel

Re: How to get the full path of a process in kext
by Michael Smith 12 Jan '11

12 Jan '11

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Re:Re: How to get the full path of a process in kext
by searockcliff 12 Jan '11

12 Jan '11

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Re: How to get the full path of a process in kext
by Michael Smith 12 Jan '11

12 Jan '11

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Re: How to get the full path of a process in kext
by Nick Blievers 12 Jan '11

12 Jan '11

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Re:Re: How to get the full path of a process in kext
by searockcliff 12 Jan '11

12 Jan '11

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How to get the full path of a process in kext
by searockcliff 12 Jan '11

12 Jan '11

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Re: Kext user parameter without userland daemon
by Antoine Missout 07 Jan '11

07 Jan '11

site_archiver(a)lists.apple.com Delivered-To: Darwin-kernel(a)lists.apple.com So, any suggestions except for hooking myself somewhere between after the root file system is mounted and before launchd is started and just reading a file (*horror*) from the disk ? If that's the only way - looks fun - any pitfalls to avoid ? - Antoine On 2011-01-06, at 16:53, Antoine Missout wrote: > Yes and no, > > We could read them once the file system has been mounted. We just need to have them before launchd is started. > > And we only use this plist key short of finding another way to be loaded before any processes are launched. > > - Antoine > > > > > On 2011-01-06, at 16:31, Quinn The Eskimo! wrote: > >> >> On 6 Jan 2011, at 18:42, Antoine Missout wrote: >> >>> We use OSBundleRequired Root to be loaded before launchd if that is your question. >> >> Well, by specified OSBundleRequired "Root" you're telling the system that you have to be started in order to mount the root file system. This guarantees that you won't be able to read the file system to get your configuration parameters. At this point you'll have to get your configuration parameters via pre-boot mechanisms, which is kinda ugly (and outside my area of expertise). >> >> 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/antoine.missout%40meta… >> >> This email sent to antoine.missout(a)metakine.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/antoine.missout%40meta… > > This email sent to antoine.missout(a)metakine.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: Kext user parameter without userland daemon
by Nick Blievers 06 Jan '11

06 Jan '11

site_archiver(a)lists.apple.com Delivered-To: Darwin-kernel(a)lists.apple.com I think you might be going about this the wrong way (or I am not understanding your requirements!). Why don't you make your daemon load the necessary data into the kernel when it loads (or even have a bootstrap daemon that loads before the real daemon, and checks if the data has been loaded into the kernel)? Is it really a requirement that the data is loaded before launchd? or simply before your daemon loads? If its the latter a bootstrap daemon should work. Nick On 07/01/2011, at 8:53 AM, Antoine Missout wrote: > Yes and no, > > We could read them once the file system has been mounted. We just need to have them before launchd is started. > > And we only use this plist key short of finding another way to be loaded before any processes are launched. > > - Antoine > > > > > On 2011-01-06, at 16:31, Quinn The Eskimo! wrote: > >> >> On 6 Jan 2011, at 18:42, Antoine Missout wrote: >> >>> We use OSBundleRequired Root to be loaded before launchd if that is your question. >> >> Well, by specified OSBundleRequired "Root" you're telling the system that you have to be started in order to mount the root file system. This guarantees that you won't be able to read the file system to get your configuration parameters. At this point you'll have to get your configuration parameters via pre-boot mechanisms, which is kinda ugly (and outside my area of expertise). >> >> 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/antoine.missout%40meta… >> >> This email sent to antoine.missout(a)metakine.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/nick%40trustdefender.c… > > This email sent to nick(a)trustdefender.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: Kext user parameter without userland daemon
by Antoine Missout 06 Jan '11

06 Jan '11

site_archiver(a)lists.apple.com Delivered-To: Darwin-kernel(a)lists.apple.com Yes and no, We could read them once the file system has been mounted. We just need to have them before launchd is started. And we only use this plist key short of finding another way to be loaded before any processes are launched. - Antoine On 2011-01-06, at 16:31, Quinn The Eskimo! wrote: > > On 6 Jan 2011, at 18:42, Antoine Missout wrote: > >> We use OSBundleRequired Root to be loaded before launchd if that is your question. > > Well, by specified OSBundleRequired "Root" you're telling the system that you have to be started in order to mount the root file system. This guarantees that you won't be able to read the file system to get your configuration parameters. At this point you'll have to get your configuration parameters via pre-boot mechanisms, which is kinda ugly (and outside my area of expertise). > > 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/antoine.missout%40meta… > > This email sent to antoine.missout(a)metakine.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: Kext user parameter without userland daemon
by Nik Gervae 06 Jan '11

06 Jan '11

site_archiver(a)lists.apple.com Delivered-To: Darwin-kernel(a)lists.apple.com Yeah, if you're trying to get info before the root filesystem is even mounted, then the only channels of data to a kext are via NVRAM, the kext's own I/O Kit Pesonalities (the whole plist is not made available), and the kext's executable - but none of them is really viable. NVRAM is not a safe place to store settings of course, and even so its capacity is tiny. And as you noted, modifying a kext bundle's contents is really not the way to go about storing configuration information. While technically possible, it's definitely not an officially supported technique. Is there any way your kext can operate in a restricted mode until the daemon launches, or will that prevent startup? In other words: what are you actually trying to do? ;-) Nik Gervae Kext Management Engineer Apple, Inc. On 06 Jan, 2011, at 13:31 , Quinn The Eskimo! wrote: On 6 Jan 2011, at 18:42, Antoine Missout wrote: > >> We use OSBundleRequired Root to be loaded before launchd if that is your question. > > Well, by specified OSBundleRequired "Root" you're telling the system that you have to be started in order to mount the root file system. This guarantees that you won't be able to read the file system to get your configuration parameters. At this point you'll have to get your configuration parameters via pre-boot mechanisms, which is kinda ugly (and outside my area of expertise). > > 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/ngervae%40apple.com > > This email sent to ngervae(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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