July 2003 - Darwin-kernel - lists.apple.com

Re: Problems with my foreign file system
by Steven Bytnar 15 Jul '03

15 Jul '03

On Mon, Jul 14, 2003 at 06:58:07PM -0700, raldrich(a)mac.com wrote: > What I don't understand is why Finder hasn't stripped the '/dev/' > prefix off of the identifier. How does Finder determine what the disk > identifier for a volume should be? The Finder isn't supposed to strip /dev/ away, is it? However you're returning the BSD name from the file system, you're probably not supposed to be prepending the "/dev/" in the first place. (Just a guess based on what PBHGetVolParmsSync is supposed to return.) > The other problem I'm having also has to do with Finder - the icon > which is shown for my volume is the same as the one shown for network > volumes. How does Finder determine what icon it should show for a > volume? When I want to lookup volumes by BSD Name with Carbon on X, I use these two functions: FSGetVolumeInfo (to walk the volume list.) PBHGetVolParmsSync (to get the GetVolParmsInfoBuffer.vmDeviceID) vmDeviceID must be the name of the raw device node itself as it appears as the "BSD Name" property of a IOMedia node. It must not contain "/dev/". It doesn't look like the Finder uses PBHGetVolParmsSync, so I'm not sure how it's doing that, but I think that if you return the correct values so that they show up properly from Carbon, your problem might go away. --Steve _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: Problems with my foreign file system
by Quinn 15 Jul '03

15 Jul '03

At 18:58 -0700 14/7/03, raldrich(a)mac.com wrote: Jul 14 18:39:58 schizm /sbin/autodiskmount[330]: DiskArbUnmountAndEjectRequest_async_rpc(diskIdentifier = '/dev/disk2s0', flags = $00000000): LookupDiskByIOBDSName failed Looking at the message, I get a clue as to what is going wrong - the disk identifier '/dev/disk2s0' should be 'disk2s0'. What I don't understand is why Finder hasn't stripped the '/dev/' prefix off of the identifier. How does Finder determine what the disk identifier for a volume should be? DiskArb typically tracks disk names via the node name (for example, "disk2s0") rather than the full path name ("/dev/disk2s0"). Take a look at the output of "disktool -y" in Terminal, and note that DiskArb prints node names at each stage. So, the node name vs full path is probably a red herring. OTOH, the message definitely seems to be significant. The DiskArb code is available as part of Darwin. <http://www.opensource.apple.com/darwinsource/Current/> [This link requires an APSL <http://www.opensource.apple.com/apsl/> account.] In this case, you'll see that the DiskArb routine DiskArbUnmountAndEjectRequest_async_rpc (which is what does the unmount and eject) is trying to find the disk in DiskArb's internal table of disks, and it isn't there. After you've mounted the disk, run "disktool -y" and see what it says about what file systems are mounted where. Also, how is your file system mounted on the disk? Are you trying to be a network file system, or is your file system mounted via DiskArb's standard mechanism for mounting on local media (that is, by probing via your bundle in "/System/Library/Filesystems")? The other problem I'm having also has to do with Finder - the icon which is shown for my volume is the same as the one shown for network volumes. How does Finder determine what icon it should show for a volume? I don't know for sure, but I suspect that this is tied in to how your mount your file system, and thus if you fix you'll fix this as well. S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Technical Support * Networking, Communications, Hardware _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Problems with my foreign file system
by raldrich＠mac.com 15 Jul '03

15 Jul '03

Folks, I'm implementing an as-yet unnamable file system under the darwin kernel, and while most of it is working as expected, I've run into a couple of problems that I'm really not sure how to debug. 1) When I eject a disk using the disktool command line tool, it ejects just fine, but when I try to eject it by dragging its icon to the trash in Finder, I get the following error message in system.log, the disk doesn't eject, and finder hangs. Jul 14 18:39:58 schizm /sbin/autodiskmount[330]: DiskArbUnmountAndEjectRequest_async_rpc(diskIdentifier = '/dev/disk2s0', flags = $00000000): LookupDiskByIOBDSName failed Looking at the message, I get a clue as to what is going wrong - the disk identifier '/dev/disk2s0' should be 'disk2s0'. What I don't understand is why Finder hasn't stripped the '/dev/' prefix off of the identifier. How does Finder determine what the disk identifier for a volume should be? The other problem I'm having also has to do with Finder - the icon which is shown for my volume is the same as the one shown for network volumes. How does Finder determine what icon it should show for a volume? Thanks, Ron Aldrich Software Architects, Inc. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: String handling still broken in dev_finddir(), bsd/miscfs/devfs/devfs_tree.
by Quinn 14 Jul '03

14 Jul '03

At 22:51 +0200 11/7/03, Daniel Mack wrote: A long time ago I found a serious brokenness in Darwin's devfs implementation. I posted it to several newsboards, mailing lists and bugtracker tools as I was told to do. Now, almost four month later, my bug still has a "Open/Verify" state (stored as #3200736) and the simple one line patch I contributed did still not make it to the kernel repository. Actually, it did. The bug is fixed in Panther. However, you haven't been notified of that because you don't have access to a Panther build to verify it on. Thanks for taking the time to file an official bug report. S+E -- Quinn "The Eskimo!" <http://www.apple.com/developer/> Apple Developer Technical Support * Networking, Communications, Hardware _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: String handling still broken in dev_finddir(), bsd/miscfs/devfs/devfs_tree.c
by Tim Seufert 11 Jul '03

11 Jul '03

On Friday, July 11, 2003, at 01:51 PM, Daniel Mack wrote: PS: The linux kernel mailing list is verbose and rude, but at least considerations are taken serious and patches fixing proper bugs get accepted. This is not necessarily true. I've submitted two simple Linux kernel bugfixes which were simply ignored. One was sent to the LinuxPPC equivalent of LKML, the other directly to the maintainer of the affected driver. I can only guess why this should happen, but I expect it comes down to the fact that there is only so much time in a day and email from some random unknown person is therefore prioritized pretty low. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: More -LoginHook
by Steven Bytnar 11 Jul '03

11 Jul '03

I can only say I've used daemon/headless LoginHooks without any problem. If you make the headless program immediately launch an app that has a GUI during the loginWindow's login prompt window, I believe the login window will run while your app runs. It did at least with 10.2.4. There's some documentation for making kiosks with MacOS X 10.2. You should check them out. There might or might not be something related to the login mechanism in the tech note that you want to (or don't want to) take advantage of. http://developer.apple.com/technotes/tn2002/tn2062.html --Steve On Fri, Jul 11, 2003 at 03:20:13PM -0600, David Blanton wrote: > Yes, Chess does launch but I guess because it has UI the system is sitting > saying Logging In ... For 10 minutes now. I know Chess launched because it > also displays a speech widget on the screen which I can see. So do apps > launched through -LoginHook need to be headless? > > > On 7/11/03 2:55 PM, "Steven Bytnar" <sbytnar(a)kagi.com> wrote: > > > If the target of the -LoginHook parameter is a plain Mach-O binary > > that acts like a daemon, the mechanism works. > > > > If you execute the binary instead of the .app folder: > > -LoginHook /Applications/Chess.app/Contents/MacOS/Chess > > the LoginHook does indeed cause Chess to execute. > > > > --Steve > > > > > > On Fri, Jul 11, 2003 at 01:48:06PM -0600, David Blanton wrote: > >> I have added the path to an executable and the path to a script using the > >> -LoginHook parameter to loginwindow and neither getsexecuted. Can anyone > >> comment on my error please: > >> > >> console > >> "/System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow > >> -LoginHook /applications/chess.app" vt100 on secure > >> window=/System/Library/CoreServices/WindowServer > >> onoption="/usr/libexec/getty std.9600" > >> > >> The above does not cause chess.app to launch > >> > >> console > >> "/System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow > >> -LoginHook /usr/mruip" vt100 on secure > >> window=/System/Library/CoreServices/WindowServer > >> onoption="/usr/libexec/getty std.9600" > >> > >> The above does not cause /usr/mruip to execute where /usr/mruip is open -a > >> chess > >> > >> Help! > >> > >> David Blanton > >> _______________________________________________ > >> darwin-kernel mailing list | darwin-kernel(a)lists.apple.com > >> Help/Unsubscribe/Archives: > >> http://www.lists.apple.com/mailman/listinfo/darwin-kernel > >> Do not post admin requests to the list. They will be ignored. > _______________________________________________ > darwin-kernel mailing list | darwin-kernel(a)lists.apple.com > Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel > Do not post admin requests to the list. They will be ignored. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: More -LoginHook
by Steven Bytnar 11 Jul '03

11 Jul '03

Try sending a SIGHUP to the init process. That might make the change take effect upon next logout. sudo kill -1 1 --Steve On Fri, Jul 11, 2003 at 03:07:11PM -0600, David Blanton wrote: > Ok, FYI You must shut down or restart after changing /private/etc/ttys. I > was changing and then logging out and expecting to see the change on log in. > > > On 7/11/03 1:48 PM, "David Blanton" <dblanton(a)highrolls.net> wrote: > > > I have added the path to an executable and the path to a script using the > > -LoginHook parameter to loginwindow and neither getsexecuted. Can anyone > > comment on my error please: > > > > console > > "/System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow > > -LoginHook /applications/chess.app" vt100 on secure > > window=/System/Library/CoreServices/WindowServer > > onoption="/usr/libexec/getty std.9600" > > > > The above does not cause chess.app to launch > > > > console > > "/System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow > > -LoginHook /usr/mruip" vt100 on secure > > window=/System/Library/CoreServices/WindowServer > > onoption="/usr/libexec/getty std.9600" > > > > The above does not cause /usr/mruip to execute where /usr/mruip is open -a > > chess > > > > Help! > > > > David Blanton > > _______________________________________________ > > darwin-kernel mailing list | darwin-kernel(a)lists.apple.com > > Help/Unsubscribe/Archives: > > http://www.lists.apple.com/mailman/listinfo/darwin-kernel > > Do not post admin requests to the list. They will be ignored. > _______________________________________________ > darwin-kernel mailing list | darwin-kernel(a)lists.apple.com > Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel > Do not post admin requests to the list. They will be ignored. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: More -LoginHook
by Ed Wynne 11 Jul '03

11 Jul '03

On Friday, July 11, 2003, at 5:20 PM, David Blanton wrote: Yes, Chess does launch but I guess because it has UI the system is sitting saying Logging In ... For 10 minutes now. I know Chess launched because it also displays a speech widget on the screen which I can see. So do apps launched through -LoginHook need to be headless? Running of the -LoginHook executable is treated as a synchronous operation, which IMHO, is its most useful feature. This means that login won't proceed until it exits. Experimentation in the 10.1.x era also showed that non-0 exit values would hang loginwindow. I don't know if that is still true today, but its something to keep in mind. -Ed _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: More -LoginHook
by David Blanton 11 Jul '03

11 Jul '03

Yes, Chess does launch but I guess because it has UI the system is sitting saying Logging In ... For 10 minutes now. I know Chess launched because it also displays a speech widget on the screen which I can see. So do apps launched through -LoginHook need to be headless? On 7/11/03 2:55 PM, "Steven Bytnar" <sbytnar(a)kagi.com> wrote: > If the target of the -LoginHook parameter is a plain Mach-O binary > that acts like a daemon, the mechanism works. > > If you execute the binary instead of the .app folder: > -LoginHook /Applications/Chess.app/Contents/MacOS/Chess > the LoginHook does indeed cause Chess to execute. > > --Steve > > > On Fri, Jul 11, 2003 at 01:48:06PM -0600, David Blanton wrote: >> I have added the path to an executable and the path to a script using the >> -LoginHook parameter to loginwindow and neither getsexecuted. Can anyone >> comment on my error please: >> >> console >> "/System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow >> -LoginHook /applications/chess.app" vt100 on secure >> window=/System/Library/CoreServices/WindowServer >> onoption="/usr/libexec/getty std.9600" >> >> The above does not cause chess.app to launch >> >> console >> "/System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow >> -LoginHook /usr/mruip" vt100 on secure >> window=/System/Library/CoreServices/WindowServer >> onoption="/usr/libexec/getty std.9600" >> >> The above does not cause /usr/mruip to execute where /usr/mruip is open -a >> chess >> >> Help! >> >> David Blanton >> _______________________________________________ >> darwin-kernel mailing list | darwin-kernel(a)lists.apple.com >> Help/Unsubscribe/Archives: >> http://www.lists.apple.com/mailman/listinfo/darwin-kernel >> Do not post admin requests to the list. They will be ignored. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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Re: More -LoginHook
by David Blanton 11 Jul '03

11 Jul '03

Ok, FYI You must shut down or restart after changing /private/etc/ttys. I was changing and then logging out and expecting to see the change on log in. On 7/11/03 1:48 PM, "David Blanton" <dblanton(a)highrolls.net> wrote: > I have added the path to an executable and the path to a script using the > -LoginHook parameter to loginwindow and neither getsexecuted. Can anyone > comment on my error please: > > console > "/System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow > -LoginHook /applications/chess.app" vt100 on secure > window=/System/Library/CoreServices/WindowServer > onoption="/usr/libexec/getty std.9600" > > The above does not cause chess.app to launch > > console > "/System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow > -LoginHook /usr/mruip" vt100 on secure > window=/System/Library/CoreServices/WindowServer > onoption="/usr/libexec/getty std.9600" > > The above does not cause /usr/mruip to execute where /usr/mruip is open -a > chess > > Help! > > David Blanton > _______________________________________________ > darwin-kernel mailing list | darwin-kernel(a)lists.apple.com > Help/Unsubscribe/Archives: > http://www.lists.apple.com/mailman/listinfo/darwin-kernel > Do not post admin requests to the list. They will be ignored. _______________________________________________ darwin-kernel mailing list | darwin-kernel(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.

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