September 2004 - Darwin-dev

root tool acting on behalf of a user - what to set and how
by Dan Bernstein 25 Sep '04

25 Sep '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com I have a server process running as root that needs to create a file on behalf of a user. I want the file creation operation to be subjected to the requesting user's permissions, so I'm using seteuid(). However, this is not enough, since additional permissions may be given to the user's group, so I also call setegid(). This isn't enough either, since the user may belong to several groups, so I call setgroups() as well. Questions: 1. Given the user's uid, what's the best way to determine the user's gid and groups list? 2. Am I forgetting something? Thanks in advance, -- Dan Bernstein _______________________________________________ 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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pcnfsd?
by Aaron Rosenblum 24 Sep '04

24 Sep '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com thanks Aaron _______________________________________________ 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… Anyone installed/built/used pcnfsd on Mac OS X/OSX Server/Darwin? I have a couple older PC apps that want to use it for uid/gid mapping but I haven't been able to find much info on it. Has anyone any info? This email sent to site_archiver(a)lists.apple.com

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Re: Connected USB devices cause coma when entering deep sleep
by Garth Cummings 23 Sep '04

23 Sep '04

site_archiver(a)lists.apple.com Delivered-To: Darwin-dev(a)lists.apple.com Hi Mike, On Sep 23, 2004, at 6:58 AM, Michael Ellis wrote: Hi Thierry. Thanks anyway. I'm presuming you're using the built-in USB and not a PCI card. <http://lists.apple.com/mailman/listinfo/usb>. USB Debug Kits: <http://developer.apple.com/hardware/usb/usbloggers.htm> Good luck, --gc On Sep 22, 2004, at 8:59 PM, Thierry Bucco wrote: Hi Michael, Regards, Thierry Le 22 sept. 04, à 16:29, Michael Ellis a écrit : Hi folks. I'd appreciate any thoughts. -Mike Ellis ========================= Michael F. Ellis President Ellis Softworks Inc. ---------- Phone: (941) 713-0361 Email: mellis(a)ellissoftworks.com Web: http://www.ellissoftworks.com This email sent to thierry(a)sockho.com ========================= Michael F. Ellis President Ellis Softworks Inc. ---------- Phone: (941) 713-0361 Email: mellis(a)ellissoftworks.com Web: http://www.ellissoftworks.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/gcummings%40apple.com This email sent to gcummings(a)apple.com __________________________________________________________________ Garth Cummings Apple Developer Technical Support gcummings(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 Thanks for responding to my post. However, as I pointed out in my original message, it turns out that the problem is NOT specifically related to the PowerChute software. I wrote: However, recently I added an EPSON RX500 Multifunction device (printer, scanner, card reader) to the system. With this device attached, I experience the sleep problem 100% of the time, whenever the system attempts to enter deep sleep. This confirms that the problem is related to USB, but it is not confined to the APC UPS as I had previously thought. The repeatability of the failure with the EPSON attached is more annoying, but at least it is predictable and that's the first step in hunting down this sort of problem. So, while I'm interested in your UPS control software for other reasons, I'm not optimistic that it will help with this specific problem (of freezing when entering deep sleep). -Mike A suggestion: try the USB mailing list since the folks responsible for USB hang out there: Also give USB Prober <file:///Developer/Applications/Utilities/USB%20Prober.app> a try with logging turned up. If that doesn't yield enough info, try installing the USB Debug Kit corresponding to your version of Mac OS X. That will enable lots of logging in USB Prober. I am unable to get an answer at your question, but maybe you should take a look at my UPS software called TimeLeft. It's free... I'm interesting in troubleshooting the following problem, so I'm hoping to get some advice as to which module I should look into (IOKit or the Power Management System). For the past few months, I have periodically encountered an issue when the computer is entering deep sleep. The symptoms are: 1) The display goes dark 2) The power light DOES NOT pulsate as it would if the computer was sleeping 3) The fans continue to run 4) The computer is unresponsive to remote login (ssh) and it will not wake up when a keyboard or mouse event is generated I suspected that it might be a problem with the PowerChute driver for my APC UPS, so I've been running for a few weeks with the APC's USB cable disconnected. During that time, I have not encountered the issue, so I figured it was the APC software. However, recently I added an EPSON RX500 Multifunction device (printer, scanner, card reader) to the system. With this device attached, I experience the sleep problem 100% of the time, whenever the system attempts to enter deep sleep. This confirms that the problem is related to USB, but it is not confined to the APC UPS as I had previously thought. The repeatability of the failure with the EPSON attached is more annoying, but at least it is predictable and that's the first step in hunting down this sort of problem. So the question remains: is this likely related to the system's USB support, or is it related to the power management system? _______________________________________________ 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/ thierry%40sockho.com smime.p7s

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Re: Connected USB devices cause coma when entering deep sleep
by Michael Ellis 23 Sep '04

23 Sep '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi Thierry. Thanks anyway. -Mike On Sep 22, 2004, at 8:59 PM, Thierry Bucco wrote: Hi Michael, Regards, Thierry Le 22 sept. 04, à 16:29, Michael Ellis a écrit : Hi folks. I'd appreciate any thoughts. -Mike Ellis ========================= Michael F. Ellis President Ellis Softworks Inc. ---------- Phone: (941) 713-0361 Email: mellis(a)ellissoftworks.com Web: http://www.ellissoftworks.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/thierry%40sockho.com This email sent to thierry(a)sockho.com ========================= Michael F. Ellis President Ellis Softworks Inc. ---------- Phone: (941) 713-0361 Email: mellis(a)ellissoftworks.com Web: http://www.ellissoftworks.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… Thanks for responding to my post. However, as I pointed out in my original message, it turns out that the problem is NOT specifically related to the PowerChute software. I wrote: However, recently I added an EPSON RX500 Multifunction device (printer, scanner, card reader) to the system. With this device attached, I experience the sleep problem 100% of the time, whenever the system attempts to enter deep sleep. This confirms that the problem is related to USB, but it is not confined to the APC UPS as I had previously thought. The repeatability of the failure with the EPSON attached is more annoying, but at least it is predictable and that's the first step in hunting down this sort of problem. So, while I'm interested in your UPS control software for other reasons, I'm not optimistic that it will help with this specific problem (of freezing when entering deep sleep). I am unable to get an answer at your question, but maybe you should take a look at my UPS software called TimeLeft. It's free... I'm interesting in troubleshooting the following problem, so I'm hoping to get some advice as to which module I should look into (IOKit or the Power Management System). For the past few months, I have periodically encountered an issue when the computer is entering deep sleep. The symptoms are: 1) The display goes dark 2) The power light DOES NOT pulsate as it would if the computer was sleeping 3) The fans continue to run 4) The computer is unresponsive to remote login (ssh) and it will not wake up when a keyboard or mouse event is generated I suspected that it might be a problem with the PowerChute driver for my APC UPS, so I've been running for a few weeks with the APC's USB cable disconnected. During that time, I have not encountered the issue, so I figured it was the APC software. However, recently I added an EPSON RX500 Multifunction device (printer, scanner, card reader) to the system. With this device attached, I experience the sleep problem 100% of the time, whenever the system attempts to enter deep sleep. This confirms that the problem is related to USB, but it is not confined to the APC UPS as I had previously thought. The repeatability of the failure with the EPSON attached is more annoying, but at least it is predictable and that's the first step in hunting down this sort of problem. So the question remains: is this likely related to the system's USB support, or is it related to the power management system? This email sent to site_archiver(a)lists.apple.com

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Re: diskutil createRAID question
by Miguel Filipe 23 Sep '04

23 Sep '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com That is not very nice... what if: 1) we have devices wich are not of the same size, but we have partitions that are? 2) we have other filesystems on those disks? Are there plans to improve raid funcionality in this direction? Thanks, On Tue, 21 Sep 2004 16:25:20 -0700, Soren Spies <sspies(a)apple.com> wrote: > On Sat, Sep 18, 2004 at 02:09:37AM -0400, Jack Howarth wrote: > > Now that I have installed a second identical SATA drive I am > >interested in trying to get a multi-hfs RAID-1 mirror set up on > > The Help for Disk Utility is misleading. In Panther, only entire > devices can be used as RAID members. > > -- > Soren Spies > DiskImages, etc; I/O Kit team > Apple Computer, Inc > > > _______________________________________________ > 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/miguel.filipe%40gmail.com > > This email sent to miguel.filipe(a)gmail.com > -- Miguel Sousa Filipe _______________________________________________ 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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Connected USB devices cause coma when entering deep sleep
by Michael Ellis 22 Sep '04

22 Sep '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi folks. I'd appreciate any thoughts. -Mike Ellis ========================= Michael F. Ellis President Ellis Softworks Inc. ---------- Phone: (941) 713-0361 Email: mellis(a)ellissoftworks.com Web: http://www.ellissoftworks.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… I'm interesting in troubleshooting the following problem, so I'm hoping to get some advice as to which module I should look into (IOKit or the Power Management System). For the past few months, I have periodically encountered an issue when the computer is entering deep sleep. The symptoms are: 1) The display goes dark 2) The power light DOES NOT pulsate as it would if the computer was sleeping 3) The fans continue to run 4) The computer is unresponsive to remote login (ssh) and it will not wake up when a keyboard or mouse event is generated I suspected that it might be a problem with the PowerChute driver for my APC UPS, so I've been running for a few weeks with the APC's USB cable disconnected. During that time, I have not encountered the issue, so I figured it was the APC software. However, recently I added an EPSON RX500 Multifunction device (printer, scanner, card reader) to the system. With this device attached, I experience the sleep problem 100% of the time, whenever the system attempts to enter deep sleep. This confirms that the problem is related to USB, but it is not confined to the APC UPS as I had previously thought. The repeatability of the failure with the EPSON attached is more annoying, but at least it is predictable and that's the first step in hunting down this sort of problem. So the question remains: is this likely related to the system's USB support, or is it related to the power management system? This email sent to site_archiver(a)lists.apple.com

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Re: AFS / CodaFS on Panther?
by Kevin Van Vechten 22 Sep '04

22 Sep '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com DarwinCode is hosted at OpenDarwin: <http://www.opendarwin.org/projects/darwincoda/> - Kevin On Sep 16, 2004, at 3:19 PM, jmzorko(a)mac.com wrote: Hello, all ... Regards, John Falling You - exploring the beauty of voice and sound New album, "Touch", available now http://www.magnatune.com/artists/falling_you _______________________________________________ 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'd like to experiment with filesystems of a more distributed nature i.e. more than just NFS-type mounts, more like systems that run daemons on clients that support callbacks, distributed locking mechanisms, etc. Since i'm a MacNut, i'd like to do all of this on my Mac(s). Am I tripping alone, or are there others who have done these things? _______________________________________________ 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/ kevin%40opendarwin.org This email sent to kevin(a)opendarwin.org This email sent to site_archiver(a)lists.apple.com

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Re: AFS / CodaFS on Panther?
by David Leimbach 22 Sep '04

22 Sep '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com http://www.clusterfs.com Dave On Sep 16, 2004, at 4:25 PM, Garance A Drosihn wrote: Hello, all ... I'd like to experiment with filesystems of a more distributed nature i.e. more than just NFS-type mounts, more like systems that run daemons on clients that support callbacks, distributed locking mechanisms, etc. http://www.OpenAFS.org/ includes a version of openafs for MacOS 10. Of course, you need to have some afs (or openafs) servers to point your clients at. If you want to do this on darwinOS (instead of the full-blown MacOS 10), then you probably need to compile openafs from the source repositories. -- Garance Alistair Drosehn = gad(a)gilead.netel.rpi.edu Senior Systems Programmer or gad(a)freebsd.org Rensselaer Polytechnic Institute or drosih(a)rpi.edu _______________________________________________ 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/leimy2k%40mac.com This email sent to leimy2k(a)mac.com -- Dave Leimbach _______________________________________________ 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… Lustre is being ported to Mac OS X as well. Not sure when it will be done or what hardware is required to host it. At 3:19 PM -0700 9/16/04, jmzorko(a)mac.com wrote: This email sent to site_archiver(a)lists.apple.com

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Re: Who takes care of a crashing process?
by Justin Walker 22 Sep '04

22 Sep '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Sep 22, 2004, at 9:36, stephane sudre wrote: On Sep 22, 2004, at 6:08 PM, Justin Walker wrote: On Sep 22, 2004, at 8:13, Stephane Sudre wrote: Stupid question probably: When a process is properly exited, exit is called in the Kernel. When a process crashes, exit is not called. Well, I've patched the SYS_exit syscall and ran this program: int main(...) { unsigned long * ohlala=NULL; *ohlala=NULL; } If this doesn't clarify things, ask. Cheers, Justin _______________________________________________ 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… Is there a specific syscall called when a process crash? Are you sure that exit() in the kernel is not called? If this were not the case, we'd be leaking file entries, memory, and other resources. I have not seen an exit call. Ah. Once your program has crashed (e.g., with a memory fault/bus error), code in its address space is no longer eligible for execution. Despite that, however, the kernel's exit() procedure *is* called. But maybe it's because there's no exit at the end of the code. The previous answer is confusing me right now. -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | "Weaseling out of things is what | separates us from the animals. | Well, except the weasel." | - Homer J Simpson *--------------------------------------*-------------------------------* This email sent to site_archiver(a)lists.apple.com

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Re: Who takes care of a crashing process?
by stephane sudre 22 Sep '04

22 Sep '04

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Sep 22, 2004, at 6:08 PM, Justin Walker wrote: On Sep 22, 2004, at 8:13, Stephane Sudre wrote: Stupid question probably: When a process is properly exited, exit is called in the Kernel. When a process crashes, exit is not called. Well, I've patched the SYS_exit syscall and ran this program: int main(...) { unsigned long * ohlala=NULL; *ohlala=NULL; } I have not seen an exit call. _______________________________________________ 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… Is there a specific syscall called when a process crash? Are you sure that exit() in the kernel is not called? If this were not the case, we'd be leaking file entries, memory, and other resources. But maybe it's because there's no exit at the end of the code. The previous answer is confusing me right now. This email sent to site_archiver(a)lists.apple.com

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