April 2008 - Darwin-dev - lists.apple.com

enabling #ident in Apple gcc
by Chris Inacio 14 Apr '08

14 Apr '08

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:message-id:date:from:to:subject:mime-version:content-type; bh=VQ+sQIyHmTOFodHwF1WZYNlYKv4ekYRspVV+/+Bwcn8=; b=Fxz4UJY9tiIDtx1l692xJgcEAi7S/nGmvBh3YzgY68GNDimBwkKUYPMZ++04UImWr4/iCDlkANtM5GlbekKpWYsuDk0x7/EEhStkhRknbWKpO1g/JLhmN84LbiVXAdetbjwo0J0l8lCStqVvCq5rtrmgPakl/mqo6x6z7f4JvBk= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type; b=IX9YhlvnkRXTXdKaPloPGtNOPUwKYJOymKQo+cs/nKb1qfpDPwgJQ6wPZf7+p/vrfODxjqbwzktJxlBUun1tCNlvv0T2ew1a7mwYQqEhaGUzMkK9kKoSxDA8HSUCQi+B7c+dlw/aJnyJ46FpcyFn+d0f2Uj8cuh/gmt9X1yVMho= _______________________________________________ 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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Re: Missing smb tarball
by Andre-John Mas 13 Apr '08

13 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com http://www.opensource.apple.com/darwinsource/tarballs/other/ Andre Hi, I just noticed that the tarball for smb seems to be missing. Visting: http://www.opensource.apple.com/darwinsource/10.5.2/ Download Unavailable Andre _______________________________________________ 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/ajmas%40sympatico.ca _______________________________________________ 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… Just mention that the lastest tar ball listed in the following directory appears to be 345: On 13-Apr-08, at 14:32 , Andre-John Mas wrote: and clicking on link marked "smb-348.1" show me the source online, but clicking on the corresponding 'tar.gz' results in: This email sent to ajmas(a)sympatico.ca This email sent to site_archiver(a)lists.apple.com

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Missing smb tarball
by Andre-John Mas 13 Apr '08

13 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, I just noticed that the tarball for smb seems to be missing. Visting: http://www.opensource.apple.com/darwinsource/10.5.2/ Download Unavailable Andre _______________________________________________ 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… and clicking on link marked "smb-348.1" show me the source online, but clicking on the corresponding 'tar.gz' results in: This email sent to site_archiver(a)lists.apple.com

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Re: Example of launchd based application?
by Andre-John Mas 13 Apr '08

13 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com kextload /Library/Extensions/tap.kext /System/Library/LaunchDaemons to see if anything was loading a kext. The only I could see was: com.apple.smbfs_load_kext.plist /System/Library/Extensions/smbfs.kext/Contents/Resources/load_smbfs Andre _______________________________________________ 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… The program is aiccu, which is a network tunnel for IPv6. Its depends on the kernel extension tun/tap being loaded. Looking at the tun and tap StartUpItems I see they are both loading the relevant extensions. In the tun file: Aiccu and tun/tap are both open source solutions, so if I need to tweak the code this is possible. The SampleD example is certainly useful on the aiccu side, so I will look into this. On the tun/tap side I am not sure how I would deal with this, since there isn't really a daemon to speak of once the kext is loaded. I took a look in This makes reference to a key "MachServices" which does not seem to be documented in the lauchd.plist file. Additionally it makes reference to: Even though I have Samba running on my machine, I don't see load_smbfs in my running processes, so this would seem to indicate that it is hanging around once it does its stuff. Can anyone suggest what launchd compliant approach should be used for launching the kext. Eventually, given the nature of tun/tap I will into making it an on demand load. I will investigate the source for smb on the Mac, though if anyone has any answers I would very much appreciate it. This email sent to site_archiver(a)lists.apple.com

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Re: Example of launchd based application?
by Steve Sisak 12 Apr '08

12 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi Andre, SampleD was the example I was thinking of. <http://developer.apple.com/samplecode/SampleD/index.html> Google "site:developer.apple.com launchd daemon" and check out the first 5 hits. <http://developer.apple.com/documentation/MacOSX/Conceptual/BPSystemStartup/…> xinetd compatibility mode might be of use to you as well. I'll take another look. Currently I have, as a LaunchAgent: HTH, -Steve _______________________________________________ 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… At 9:53 AM -0400 4/12/08, Andre-John Mas wrote: On 11-Apr-08, at 21:27 , Steve Sisak wrote: (off list) Oops, I see you cc'd the list -- no worries, was just trying to keep noise down. As Justin suggested, you might want to RTFM a bit -- there are some very good launchd examples in the sample code section of developer.apple.com. I obviously did look hard enough, since I has tried searching on the developer web site before posting the question. I'll have another look. I'll certainly check the Darwin source, which I hadn't thought of doing before. Your understanding is a bit far afield in that your launchd plist isn't a script and doesn't have a timeout or anything like that. If you just want an application launched, you just tell launchd "launch this application with these parameters" and (optionally) relaunch it if it crashes. This is the delicate part, since if does crash I need to limit how soon, or how many times, it attempts to reconnect. Part of the contract with the tunnel provider is that I don't reattempt to reconnect too many times, too quickly in the case of issues. Doing so would result in the tunnel end-point locking me out. The program I am trying to move to launchd is not one which I wrote, so I don't have much control over its behaviour. We'd need to know more about the behavior of your application but this might be a start: If you provide a service, you can tell launchd to register the service (TCP port, unix domain socket, whatever) on your behalf and launch you if anyone accesses it. When you're launched, you check in with launchd to get your file descriptors then open whatever services you need, which may cause launchd to launch them on demand. This is possible, but I am not sure how well this interacts with a service that is currently being launched using a StartUpItem, which tun/tap is. Normally, you just wait until your service is ready. Can you describe your service's requirements in more detail? Anyway, hopefully this will give you a kick in the right direction. Look at the docs and "man launchd.plist" to get started. (launchd is very cool) <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Label</key> <string>net.sixxs.Aiccu</string> <key>ProgramArguments</key> <array> <string>/usr/sbin/aiccu</string> <string>start</string> <string>/etc/aiccu.conf</string> </array> <key>RunAtLoad</key> <true/> </dict> </plist> but that will launch aiccu even if tun/tap is not ready. My understanding is that aiccu should just block until its dependencies are ready. This email sent to site_archiver(a)lists.apple.com

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Re: Example of launchd based application?
by Andre-John Mas 12 Apr '08

12 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com (off list) Hi Andre, I'll take another look. Currently I have, as a LaunchAgent: but that will launch aiccu even if tun/tap is not ready. I'll do some more digging. Andre _______________________________________________ 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… On 11-Apr-08, at 21:27 , Steve Sisak wrote: As Justin suggested, you might want to RTFM a bit -- there are some very good launchd examples in the sample code section of developer.apple.com. I obviously did look hard enough, since I has tried searching on the developer web site before posting the question. I'll have another look. I'll certainly check the Darwin source, which I hadn't thought of doing before. Your understanding is a bit far afield in that your launchd plist isn't a script and doesn't have a timeout or anything like that. If you just want an application launched, you just tell launchd "launch this application with these parameters" and (optionally) relaunch it if it crashes. This is the delicate part, since if does crash I need to limit how soon, or how many times, it attempts to reconnect. Part of the contract with the tunnel provider is that I don't reattempt to reconnect too many times, too quickly in the case of issues. Doing so would result in the tunnel end-point locking me out. The program I am trying to move to launchd is not one which I wrote, so I don't have much control over its behaviour. If you provide a service, you can tell launchd to register the service (TCP port, unix domain socket, whatever) on your behalf and launch you if anyone accesses it. When you're launched, you check in with launchd to get your file descriptors then open whatever services you need, which may cause launchd to launch them on demand. This is possible, but I am not sure how well this interacts with a service that is currently being launched using a StartUpItem, which tun/tap is. Anyway, hopefully this will give you a kick in the right direction. Look at the docs and "man launchd.plist" to get started. (launchd is very cool) <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd "> <plist version="1.0"> <dict> <key>Label</key> <string>net.sixxs.Aiccu</string> <key>ProgramArguments</key> <array> <string>/usr/sbin/aiccu</string> <string>start</string> <string>/etc/aiccu.conf</string> </array> <key>RunAtLoad</key> <true/> </dict> </plist> This email sent to site_archiver(a)lists.apple.com

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Re: Example of launchd based application?
by Justin C. Walker 12 Apr '08

12 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, Justin -- Justin C. Walker, Curmudgeon-At-Large Director Institute for the Enhancement of the Director's Income -------- "Weaseling out of things is what separates us from the animals. Well, except the weasel." - Homer J Simpson -------- _______________________________________________ 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… On Apr 11, 2008, at 15:57 , Andre-John Mas wrote: I am currently looking at migrating an application from using a StartupItem to launchd. The application depends on tun/tap to run. If I understand rightly my launch script will be launched and then hang around waiting until it can establish a connection with tun/ tap? What sort of time out should a program be expected to provide, to take into account that the dependency might be slow to start, yet at the same time may also be suffering from issues of its own? Are there any source examples available that show how such an application should behave? I've never fiddled with this stuff, but if `twere me, I'd look @ / System/Library/Launch* and see what's there. Then I'd head on over to the Apple developer site and check out the code provided on the Darwin source page. There ought to be something come out of that. This email sent to site_archiver(a)lists.apple.com

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Example of launchd based application?
by Andre-John Mas 11 Apr '08

11 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, Andre _______________________________________________ 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 am currently looking at migrating an application from using a StartupItem to launchd. The application depends on tun/tap to run. If I understand rightly my launch script will be launched and then hang around waiting until it can establish a connection with tun/tap? What sort of time out should a program be expected to provide, to take into account that the dependency might be slow to start, yet at the same time may also be suffering from issues of its own? Are there any source examples available that show how such an application should behave? This email sent to site_archiver(a)lists.apple.com

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Leopard Sources Posted: ipsec
by William Siegrist 11 Apr '08

11 Apr '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com The darwin team has posted sources for the ipsec project in Leopard. http://www.opensource.apple.com/darwinsource/10.5.2/ipsec-34/ Thank you. ---- William Siegrist Darwin Team _______________________________________________ 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 smime.p7s

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nlist on 64-bit platforms
by Neal Sidhwaney 10 Apr '08

10 Apr '08

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:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; bh=5/oGH1TbdI53gmbP4JNumP5A5+GM8isnlzVS8xGSv3k=; b=SuwovKhwPteGicJJD8eCBDB8T3t6KkyNmF8WFsHeNW9zz+AcAjKU2d8EdSD1+GiVD/R+K3zizynYh4RcZvlmsxEcAWgir9PVzOZF3U+bFhM5xIBuBAvUKXPx+Gq9XhDNQaResATEj5uq3ED6PcgB1TC3/DiZ2kourp9FoW6ahXI= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=xnC5MJEjc8IKblMf42eIhLVT75ytOKB+Rcod+bGzGsfGcMz4j4ZK5P4AJTJhSMYYVREU2YWB9ZXz7JfJ7wqBpg2SC/GL6Y6zILCXKIcn420hXmhMMEAt+EKcV9OZ2IqEMA6whkZqOsPOg1GbGYt1k88pi+lcVtG6/utK6fHpHbQ= Hi I noticed in libc/gen/nlist.c that nlist() is commented out for __LP64__ builds. I have ported it to work on both x86_64 & ppc64 platforms, however I am wondering how Apple envisions the caller getting the index into the string table to pass into the nlist_64 structure. I sort of hacked something together to suit my purposes - my nlist function takes a separate array of character arrays, which are used exactly like the n_name parameter of the 32-bit nlist structure, and I ignore the n_strx field. Will you expect calls to make a separate pass through the binary to find the index into the string table of the string they want, and then call nlist ? Thanks, Neal _______________________________________________ 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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