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

ownership with sendto / CFSocketSendData
by maclists＠batchmaker.de 24 Feb '10

24 Feb '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Organization: handmade ! User-agent: MacSOUP/D-2.7 (Mac OS X version 10.4.9) In a CFPlugIn I'm using sendto to broadcast udp packets. Now I wanted to change the code to CFSocket. In creating, binding and receiving this was no problem. In sending I don't understand the naming convention of CFSocketSendData. I can create af CFData..NoBytesCopy-Ref. from my packet buffer. If I send it with CFSocketSendData is the Data afterwards released. The docs don't say this. If it is not released it should be valid on my next send-cycle. So I'd reuse it, the pointed to data is read again (it mitght have changed in the meantime) and sended out. This is what I'd expect. Which one is correct? rgds, -- Hado Hein (KSK, DTHG), master craftsman of stagecrafts, Berlin followme office +49.30.91688488 www.beleuchtungsbildner.de - Stage Lighting Directing www.batchmaker.de - Stage Lighting Design, Control and Routing _______________________________________________ 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

1 0

Re: Java sockets don't pass through NKE
by Vincent Lubet 22 Feb '10

22 Feb '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.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

1 0

Re: Issue with DiskArbitration unmount approval callback - it is called multiple times
by Aaron Burghardt 22 Feb '10

22 Feb '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.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

1 0

Re: Spawn a screen session from launch daemon
by Samer Abdallah 22 Feb '10

22 Feb '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hello, I would like to bump this question. Until recently I was using Tiger on an old Powerbook, and I used to start a screen session from my /etc/rc.local: /etc/rc.local: # ... sudo -u samer bash -l /Users/samer/.bootrc # ... ~/.bootrc: HOSTNAME=<hostname> SHELL=/bin/bash TERM=xterm-color DISPLAY=:0 \ screen -U -d -m -h 6000 Now I've just got a MacBook running Snow Leopard and this doesn't work any more, and evidently starting screen using a launch daemon won't work either. Best regards, Samer > Hello, > > I have written a script to be run by launchd when the WindowServer process runs. It starts a detached screen session in which gdb is attached to the WindowServer. > > (This isn't for anything production, obviously.) > > > Unfortunately, launchd throws an error when I try to use screen: > > Bug: launchd_core_logic.c:8250 (23932):0 > Switching sessions is not allowed in the system Mach bootstrap. > _vprocmgr_switch_to_session(): kr = 0x44c > > What is the reasoning behind this? Is there a workaround? > > > Regards, > Ryan Govostes _______________________________________________ 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

1 0

Spawn a screen session from launch daemon
by Ryan Govostes 22 Feb '10

22 Feb '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:resent-from:date:content-transfer-encoding :resent-date:resent-to:message-id:to:x-mailer; bh=OSrotAtammn1Vv9nWy0nhi67I3Cb/3mXAxqru6wu+tw=; b=gZuNtAPnbWeUvz8fiPg6xvYHMAo5k1n4xh6rIRlF5Wsx/wjOcAvd8KY9m6bk2jlHBk GqVdTMUY5TYfg5vlNF/zkwVwwVa8QQDPAMvpb1Ilk1uVorXns/u71Sq84HXM475VQwvN T7RDwobvqKww/racmRui6qO6x4qAvIq5OHGD0= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:mime-version:content-type:from:resent-from:date :content-transfer-encoding:resent-date:resent-to:message-id:to :x-mailer; b=fPYSuYVG+dV3XwBuSoeBRv/nhCnhqVsw3IMrvjbI93Pe77NdTd5PgDWSebDUcsrJsE hhobdgekMNq7SeQ73Cj9UrIfTeS/iVMSftTtFiLAaW0JOzSNg0qJ/l31LBz0BCEaN/h/ JtzLmCWo0wSnkCutCkjeUcmslrKmStKyp5qPQ= Resent-date: Sun, 21 Feb 2010 21:27:20 -0500 Resent-from: Ryan Govostes <rgovostes(a)gmail.com> Resent-message-id: <20100222022728.C8EC3C01B140(a)relay1.apple.com> Resent-to: darwin-dev(a)lists.apple.com Hello, I have written a script to be run by launchd when the WindowServer process runs. It starts a detached screen session in which gdb is attached to the WindowServer. (This isn't for anything production, obviously.) Unfortunately, launchd throws an error when I try to use screen: Bug: launchd_core_logic.c:8250 (23932):0 Switching sessions is not allowed in the system Mach bootstrap. _vprocmgr_switch_to_session(): kr = 0x44c What is the reasoning behind this? Is there a workaround? Regards, Ryan Govostes Also asked on http://stackoverflow.com/questions/2304847/spawn-a-screen-session-from-laun… _______________________________________________ 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

1 0

Re: 10.6.2 issues with F_NOCACHE?
by Marc Van Olmen 21 Feb '10

21 Feb '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.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

1 0

Re: 10.6.2 issues with F_NOCACHE?
by Marc Van Olmen 21 Feb '10

21 Feb '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.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

1 0

Re: close on USB serial port hangs (read pending) on Snow Leopard
by Fritz Anderson 20 Feb '10

20 Feb '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On 19 Feb 2010, at 4:49 PM, Ben Byer wrote: > Does this reproduce with a USB-to-serial adapter from another vendor? A good thought, and thank you, but the approach suggested by Keun-young Park and Terry Lambert was the solution. I'm very, very grateful to them. — F _______________________________________________ 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

1 0

Re: close on USB serial port hangs (read pending) on Snow Leopard
by Ben Byer 19 Feb '10

19 Feb '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Feb 18, 2010, at 11:31 AM, Fritz Anderson wrote: > I have an application (compiled against the 10.4 Universal SDK, GCC 4.0) that hangs upon close() on a serial port when running on 10.6, but not on earlier OSes. > > There is a blocking read() pending on the file descriptor in another thread. > > The device is an FTDI USB-to-serial port discovered through the IO registry as kIOSerialBSDRS232Type and opened on its callout /dev entry. Does this reproduce with a USB-to-serial adapter from another vendor? Ben _______________________________________________ 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

1 0

Re: What's eating gilbert pid? (kevent NOTE_FORK and pids question)
by Derrick Brashear 19 Feb '10

19 Feb '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:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=XTmG5Il2c07WFBpqqm2l4qjaDaV3xW+gzXLoGAcQbL8=; b=jP8e0xBr1WJQIHhntp+k0WVUy0wwjOGwrhm7H16/xNwVMq3mLgGH4amJiiYWAPQmgg d1F/FJs0wuRUclR+q1D7NP0ISyTnZ2hb1vGJpSLgdZAve4xl5CRwsZ+NnzWhwXeV6Y7s UX7Cp+0D0/zP6Ixpjb8eJtLh2rqII4IY++KFQ= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=UFL+y9ldzXDWYfNFchjBQdQqmUfw1+Lb24MM5fNn2IsRLZFJLIQ56hwyYeEA5rkhjf 0/38QT9Hx2e/7j/BHHwd03qR9BOFAuEoIoyLeXhkYHhA/CADOWiQ7lIsV0SOHiPzwsnW ItAwpQ7OImHXDKcyms/GyBX/jVzaAif4Ob3Sw= On Fri, Feb 19, 2010 at 3:17 PM, Terry Lambert <tlambert(a)apple.com> wrote: > On Feb 19, 2010, at 11:59 AM, Derrick Brashear wrote: >> >> That's also not really "better". Alas, what I really want to do is >> track processes in some way such that marking a process causes that >> mark to be inherited by children, and allow the kernel to read the >> mark, and a process can cause itself to get a new mark which will be >> inherited to *its* future children, and it seems that's simply not >> possible: >> >> -The MAC subsystem isn't supported >> (http://developer.apple.com/mac/library/qa/qa2007/qa1574.html) >> -login contexts and audit sessions are one-per-process and owned by >> system software >> -I'm insufficiently special to use a mach special port (there are 7) >> -The kauth external cred resolver interface allows but a single >> resolver and I'm not memberd. > > What actor needs access to the information? A kernel extension will decide which credentials to use based on the information. (OpenAFS, in this case) > (1) This is what the keychain mechanism gives you The goal is to within, say, a login session, give away the session I have and enroll in a new one. This should ideally affect only me, so, how I do this without causing the user to lose access to their keychain? (I assume this would be with setlcid and using that would seem to have this side effect) > (2) Consider adding a directory services plugin, which give you access as > part of the authority of memberd That may be plausible. > (3) Consider simply putting the initail process in an additional > supplementary group That's fixed, though. Every login session would be an initial process (so if I ssh in more than once, each sshd should be treated as disjoint; If I am also a console user, that's also disjoint) -- Derrick _______________________________________________ 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

1 0