July 2006 - Darwin-kernel - lists.apple.com

Re: Remove FireWall entries. How?
by plumber Idraulico 26 Jul '06

26 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com man ipfw :) On 7/26/06, Josh Graessley <jgraessley(a)apple.com> wrote: I believe contents of this file are considered an implementation detail and not an API. I think the current approved method for adding rules to the firewall is to give detailed instructions on how the user may do this. Ultimately, the best solution is to turn the stupid thing off. But if I user thinks they can't live without Blue Widget Goo and you try to take it from them, they resent you. So we live with a stupid personal firewall that does nothing to increase the security of the machine. The only thing it does do is break applications that want to use the network for legitimate purposes. -josh On Jul 26, 2006, at 10:29 AM, rohit dhamija wrote: Best Regards, {Plum} {Plumber Idraulico} Senior Software Engineer/Unix Client/Server Software Engineer Paris - France _ /o\ // \\ The ASCII \\ // Ribbon Campaign \V/ Against HTML /A\ eMail! // \\ _______________________________________________ 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.… So is it not advisable to make/add your rules in the FireWall settings ? I thought to add the rules while installing my app and remove while unistallation. > I have added a dictionay named SHK under the firewall dictionary entry > of com.apple.sharing.firewall.plist with the following command: > > defaults write "/Library/Preferences/com.apple.sharing.firewall" > "firewall" -dict-add SHK '{ "Port" = (7001,7002); }' ; > > somewhat like this: > ^Firewall --- Dictionary > ^SHK ---Dictionary > ^ Port --- Array > > Now what should I do if I want to delete this SHK entry from plist? > > I have tried: > defaults delete "/Library/Preferences/com.apple.sharing.firewall" > firewall > > It deletes the complete firewall dictionary. But I want to remove just > SHK entry and not the complete firewall entry. > _______________________________________________ > 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/jgraessley% > 40apple.com > > This email sent to jgraessley(a)apple.com This email sent to site_archiver(a)lists.apple.com

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Re: Remove FireWall entries. How?
by rohit dhamija 26 Jul '06

26 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=F90e1rF/Mh50ZizAlOcwBk87HPBiHs/mIj8O+WqDrqY3P9IUQkTz7KJsw9BrJfdRy3QJZD4B2H7dgAyWpvaIbbbn813B0JUuiCAYZWZ3/H/fGK+YKakYfjD2cTYrpTBOEcXk9OoLW8DWGt6JFL7nyuRqOhtUroCurby5ooOmoHA= So is it not advisable to make/add your rules in the FireWall settings ? I thought to add the rules while installing my app and remove while unistallation. I believe contents of this file are considered an implementation detail and not an API. I think the current approved method for adding rules to the firewall is to give detailed instructions on how the user may do this. Ultimately, the best solution is to turn the stupid thing off. But if I user thinks they can't live without Blue Widget Goo and you try to take it from them, they resent you. So we live with a stupid personal firewall that does nothing to increase the security of the machine. The only thing it does do is break applications that want to use the network for legitimate purposes. -josh On Jul 26, 2006, at 10:29 AM, rohit dhamija wrote: > I have added a dictionay named SHK under the firewall dictionary entry > of com.apple.sharing.firewall.plist with the following command: > > defaults write "/Library/Preferences/com.apple.sharing.firewall" > "firewall" -dict-add SHK '{ "Port" = (7001,7002); }' ; > > somewhat like this: > ^Firewall --- Dictionary > ^SHK ---Dictionary > ^ Port --- Array > > Now what should I do if I want to delete this SHK entry from plist? > > I have tried: > defaults delete "/Library/Preferences/com.apple.sharing.firewall" > firewall > > It deletes the complete firewall dictionary. But I want to remove just > SHK entry and not the complete firewall entry. > _______________________________________________ > 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/jgraessley% > 40apple.com > > This email sent to jgraessley(a)apple.com -- Rohit Dhamija(M) 9818446545 _______________________________________________ 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 7/26/06, Josh Graessley <jgraessley(a)apple.com> wrote: This email sent to site_archiver(a)lists.apple.com

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Re: Remove FireWall entries. How?
by Josh Graessley 26 Jul '06

26 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com -josh On Jul 26, 2006, at 10:29 AM, rohit dhamija wrote: I have added a dictionay named SHK under the firewall dictionary entry of com.apple.sharing.firewall.plist with the following command: defaults write "/Library/Preferences/com.apple.sharing.firewall" "firewall" -dict-add SHK '{ "Port" = (7001,7002); }' ; somewhat like this: ^Firewall --- Dictionary ^SHK ---Dictionary ^ Port --- Array Now what should I do if I want to delete this SHK entry from plist? _______________________________________________ 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 I believe contents of this file are considered an implementation detail and not an API. I think the current approved method for adding rules to the firewall is to give detailed instructions on how the user may do this. Ultimately, the best solution is to turn the stupid thing off. But if I user thinks they can't live without Blue Widget Goo and you try to take it from them, they resent you. So we live with a stupid personal firewall that does nothing to increase the security of the machine. The only thing it does do is break applications that want to use the network for legitimate purposes. I have tried: defaults delete "/Library/Preferences/com.apple.sharing.firewall" firewall It deletes the complete firewall dictionary. But I want to remove just SHK entry and not the complete firewall entry. _______________________________________________ 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/jgraessley% 40apple.com This email sent to jgraessley(a)apple.com smime.p7s

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Remove FireWall entries. How?
by rohit dhamija 26 Jul '06

26 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=Gps6FJKRBaExAKw5trvEPHkNWMlEZSeGlNnjNAjEaB8abXQDpg2fQ5WMEFWH/7BIPyUu+NL0FO2naejvNlINZ6AeijR5vH0IMlFgJGLOX3Lst65B/vahR/rPZGlEN6GvQ1gk15DXO34qCrTt76UHIDwcJfyuFqKmypW8Alo9DwM= I have added a dictionay named SHK under the firewall dictionary entry of com.apple.sharing.firewall.plist with the following command: defaults write "/Library/Preferences/com.apple.sharing.firewall" "firewall" -dict-add SHK '{ "Port" = (7001,7002); }' ; somewhat like this: ^Firewall --- Dictionary ^SHK ---Dictionary ^ Port --- Array Now what should I do if I want to delete this SHK entry from plist? I have tried: defaults delete "/Library/Preferences/com.apple.sharing.firewall" firewall It deletes the complete firewall dictionary. But I want to remove just SHK entry and not the complete firewall entry. _______________________________________________ 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: bypassing unified buffer cache?
by Jonas Maebe 26 Jul '06

26 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On 26 Jul 2006, at 17:39, Travis Rose wrote: man fcntl /F_NOCACHE Jonas _______________________________________________ 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.… My question to anyone who knows the kernel, is there a way to write files that maybe can bypass the unified buffer cache (if that is actually the problem)? Or in general, is their a way to write these types of files so that they don't lead to "eating" all of the available memory? This email sent to site_archiver(a)lists.apple.com

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bypassing unified buffer cache?
by Travis Rose 26 Jul '06

26 Jul '06

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: a Kernel hack for a Powerbook thermal sensor gone crazy?
by Fabio Cionini 26 Jul '06

26 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com the system log states like this every time the system goes to sleep: thank you very much, Fabio Cionini On 26 lug 2006, at 12:24, Dan Bernstein wrote: On 7/25/06, Fabio Cionini <fabio.cionini(a)gmail.com> wrote: Do you think it's possible to fake the kernel by modifying these lines, to send a hardcoded value just to avoid system craziness, or just comment the lines to avoid that specific sensor checking? _______________________________________________ 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.… Jul 12 11:35:41 phti kernel[0]: Power Management received emergency overtemp signal. Going to sleep. Jul 12 11:35:47 phti kernel[0]: System Sleep I have to drain the backup battery only sometimes, and I believe it's when the sensor keep on sending a high temperature value, so the kernel (or the smu?) refuses to wake the system from sleep. Most of the times I can wake from sleep by pressing a key, and that's when the sensor does not send the same value as before (I verified this by using the Temperature Monitor app). And if it's like you say, where the highest temperature values are stored? in the firmware? Can I ask you some help on compiling the AppleMacRISC4PE project correctly so I can try it by myself? I downloaded all the project files and compiled from xcode but it fails, requiring IOKit/IOCPU.h : where is it and how can I set up a complete compiling environment for that project? I believe that in some models, certain emergency shutdown functionality is managed by the SMU firmware and does not depend on the kernel. So you may end up patching the kernel only to find out that the SMU shuts down the machine. This is also consistent with your experience of having to drain the backup battery, which only supports the SMU, in order to be able to power up again. -- Dan This email sent to site_archiver(a)lists.apple.com

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Re: a Kernel hack for a Powerbook thermal sensor gone crazy?
by Fabio Cionini 26 Jul '06

26 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com For example (PBG4_DPSCtrlLoop.cpp): I thought this was the right place... isn't it? Fabio Cionini On 25 lug 2006, at 18:56, Michael Smith wrote: On Jul 25, 2006, at 9:39 AM, Fabio Cionini wrote: = Mike _______________________________________________ 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.… thanks for your answer... applecare says that the guarantee period is over so I have to pay. No more no less. By the way, I thought the files I mentioned were kind of sensor drivers, and modifying the driver would have modified the relationship between the kernel and the sensor itself. So how the thing is working? How kernel receives values from the sensor? And what does these files I mentioned do if not checking the sensor values? 482 // fetch the current trackpad temperature state 483 if (safeGetState(fTPadTempSensor) >= 1) { 484 newMetaState = gIOPPluginOne; 485 CTRLLOOP_DLOG( "PBG4_DPSCtrlLoop::updateMetaState trackpad non- zero temp state 0x%lx\n", safeGetState(fTPadTempSensor)); 486 } The reason why I'm writing all this to a kernel developing mailing list is that I thought about the issue and maybe there could be a way to fix it without replacing any hardware. I'm kinda newbie in that, but I browsed the darwin sources using this darwingrok site http://darwingrok.physics.ox.ac.uk:8080/source/xref/ and found that this file http://darwingrok.physics.ox.ac.uk:8080/source/xref/ AppleMacRISC4PE/IOPlatformPlugins/PBG4_PlatformPlugin/CtrlLoops/ PBG4_DPSCtrlLoop.cpp (lines 97 and 483), among with others in the PBG4_PlatformPlugin of the AppleMacRISC4PE project, there are references to that specific thermal sensor, as long as methods to get the sensor value. Do you think it's possible to fake the kernel by modifying these lines, to send a hardcoded value just to avoid system craziness, or just comment the lines to avoid that specific sensor checking? The other three sensors are working ok so I don't think this hack would lead to any danger. There's no code in the kernel per se that does anything specific with that sensor, so there's nothing you would be able to change about it. I tried to compile the AppleMacRISC4PE project but I failed (I think I'm too newbie) even without modifying anything, so I'm asking help to you with this issue. Maybe it's just a small modification. In your shoes, I would be looking for a second-hand top case, after talking to AppleCare to see what they had to say. This email sent to site_archiver(a)lists.apple.com

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Re: a Kernel hack for a Powerbook thermal sensor gone crazy?
by Michael Smith 25 Jul '06

25 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Jul 25, 2006, at 9:39 AM, Fabio Cionini wrote: = Mike _______________________________________________ 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.… The reason why I'm writing all this to a kernel developing mailing list is that I thought about the issue and maybe there could be a way to fix it without replacing any hardware. I'm kinda newbie in that, but I browsed the darwin sources using this darwingrok site http://darwingrok.physics.ox.ac.uk:8080/source/xref/ and found that this file http://darwingrok.physics.ox.ac.uk:8080/source/xref/ AppleMacRISC4PE/IOPlatformPlugins/PBG4_PlatformPlugin/CtrlLoops/ PBG4_DPSCtrlLoop.cpp (lines 97 and 483), among with others in the PBG4_PlatformPlugin of the AppleMacRISC4PE project, there are references to that specific thermal sensor, as long as methods to get the sensor value. Do you think it's possible to fake the kernel by modifying these lines, to send a hardcoded value just to avoid system craziness, or just comment the lines to avoid that specific sensor checking? The other three sensors are working ok so I don't think this hack would lead to any danger. There's no code in the kernel per se that does anything specific with that sensor, so there's nothing you would be able to change about it. I tried to compile the AppleMacRISC4PE project but I failed (I think I'm too newbie) even without modifying anything, so I'm asking help to you with this issue. Maybe it's just a small modification. In your shoes, I would be looking for a second-hand top case, after talking to AppleCare to see what they had to say. This email sent to site_archiver(a)lists.apple.com

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a Kernel hack for a Powerbook thermal sensor gone crazy?
by Fabio Cionini 25 Jul '06

25 Jul '06

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Thanks in advance, Fabio Cionini _______________________________________________ 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.… Hello to everyone, I have a big issue with my Powerbook G4 (Aluminium, 1.67 Ghz, OS 10.4.7): just like several other users, the temperature sensor that is located under the trackpad has suddenly gone crazy. It started to send random values to the kernel (going from -130°C to +120°C): when this value goes too high the kernel puts the computer in sleep mode. This can happen once in a while or even every few seconds, making the pb unusable. Sometimes it is not even possible to wake the system from sleep or shut it down: I have to remove the battery and wait for the backup battery to drain. My guarantee period has over (less than a month ago! I'm so lucky...) and so I'd spend a lot of money by replacing either the top case or the logic board in the worst case scenario. Every other user on the net that had this problem simply got the hardware parts replaced, but that would be too expensive for me in this moment. The reason why I'm writing all this to a kernel developing mailing list is that I thought about the issue and maybe there could be a way to fix it without replacing any hardware. I'm kinda newbie in that, but I browsed the darwin sources using this darwingrok site http:// darwingrok.physics.ox.ac.uk:8080/source/xref/ and found that this file http://darwingrok.physics.ox.ac.uk:8080/source/xref/ AppleMacRISC4PE/IOPlatformPlugins/PBG4_PlatformPlugin/CtrlLoops/ PBG4_DPSCtrlLoop.cpp (lines 97 and 483), among with others in the PBG4_PlatformPlugin of the AppleMacRISC4PE project, there are references to that specific thermal sensor, as long as methods to get the sensor value. Do you think it's possible to fake the kernel by modifying these lines, to send a hardcoded value just to avoid system craziness, or just comment the lines to avoid that specific sensor checking? The other three sensors are working ok so I don't think this hack would lead to any danger. I tried to compile the AppleMacRISC4PE project but I failed (I think I'm too newbie) even without modifying anything, so I'm asking help to you with this issue. Maybe it's just a small modification. This email sent to site_archiver(a)lists.apple.com

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