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

Re: is it possible to find the target OS version from the binary?
by Shantonu Sen 23 Nov '10

23 Nov '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Not really. What are you trying to do? If you build against the 10.6 sdk but use -mmacosx-version-min=10.4, the load commands will record the 10.6 dylib info. Sent from my iPhone On Nov 22, 2010, at 3:57 PM, Iceberg-Dev <dev.iceberg(a)gmail.com> wrote: > Stupid question: > ---------------- > > Is it possible to reliably find which major OS version was targeted by a Xcode project from the built executable? > > Are there some hints in the mach headers? Or can it be done using the versions of the linked libraries/frameworks? > > > _______________________________________________ > 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/ssen%40apple.com > > This email sent to ssen(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

1 0

is it possible to find the target OS version from the binary?
by Iceberg-Dev 22 Nov '10

22 Nov '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:mime-version :content-transfer-encoding:message-id:content-type:to:from:subject :date:x-mailer; bh=65Xhvgx/pgI3xVuRrTjxWYneRLtGgbP9Hr7PGZhUMpw=; b=faErNkDFKjS/hpUAq2lqz7lx6NMrptIGvmjIH2z4ww0XNr97haR+HXw1AvWefhE/5R XxxtijLOsAAXJf0scs4fefkrXi5cd9Gq3dxTo/fA1Cr/eE98IELtFEbWyB9eTgbxQ0NS cttyXlpuktyqOiEdPP0KPMgyP6eaH11Ua83KI= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:content-transfer-encoding:message-id:content-type:to :from:subject:date:x-mailer; b=IbVNJapwqLyLyevy4ucF4N76cXoVdAZswuYbvk6eKxumRA6QLQ1HE5o5NN9+U9LRNv yKbun2k95xafPXbV+T2bH+Mg/NGqmMl4qSa1SpOZgqDsSynSgRi687FVOXToQ+26qqre hd1VE5UaSvc7t6GZafEV3z8DF2gWQuKwYGxHQ= Stupid question: ---------------- _______________________________________________ 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 it possible to reliably find which major OS version was targeted by a Xcode project from the built executable? Are there some hints in the mach headers? Or can it be done using the versions of the linked libraries/frameworks? This email sent to site_archiver(a)lists.apple.com

1 0

IONotificationPortCreate on an existing mach port with existing notification port
by Joel Reymont 19 Nov '10

19 Nov '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:from:content-type :content-transfer-encoding:subject:date:message-id:to:mime-version :x-mailer; bh=FQ/HgsBN2VAeOkB1mQj+QDqFdowv+kK313L1Oni8TXA=; b=H4OZtKHv+OUXgHZQbhntsVQXQ70weEeI320PXKwPJbTSRLMGijmLW6fUIIE5a1WXjs 4lE6NLl/ohFQOScHvPOLJj6HgsjvQOkYYOy9wuh9s/dIHdBvSNP8wSLcWY2oSjcLUZzS HYInYj+eMaDiV/b5JuH4BA3kzwNrvTwZsU8xw= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:content-type:content-transfer-encoding:subject:date:message-id :to:mime-version:x-mailer; b=i42RqLjoBC3WiDOO7X88g4Vc1bmGU7mq1QXdom223Gg27iaefM9fWHrZpucR3ExYGD 6KJ3UvoawD30e7UUxCZL+4HnJl9qKGh7xd04G8VKKwlvnqzvrn5+gCLnaNlQO7qXxwYC lR4ZdVo4y9raDWDZO/cwav7w0LlWAIggqyF/Y= I'm trying to combine user-space USB code with GCD and I'm finding that my async notification callback is not being triggered. I don't have a CFRunLoop and I'm using this hack instead: extern "C" { // http://lists.apple.com/archives/darwin-dev/2010/Apr/msg00072.html void IONotificationPortSetDispatchQueue(IONotificationPortRef notify, dispatch_queue_t queue ); }; In absence of a run loop, I can't go the standard route of (*interface)->CreateInterfaceAsyncEventSource(interface, &runLoopSource); CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource, kCFRunLoopDefaultMode); I'm trying to work around it like this IOUSBInterfaceInterface245 **intf_; mach_port_t async; IOReturn kr = (*intf_)->CreateInterfaceAsyncPort(intf_, &async); dispatch_queue_t que_ = dispatch_queue_create("com.agilent.82357b.usb", NULL); IONotificationPortRef notify = IONotificationPortCreate(async); IONotificationPortSetDispatchQueue(notify, que_); (*intf_)->ReadPipeAsync(intf_, pipe, buffer, size, AsyncInterruptCallback, &data); but AsyncInterruptCallback is never called. Does IONotificationPortCreate give me a whole new notification port compared to the one used by IOUSBInterfaceClass::CreateInterfaceAsyncPort internally and associated with the mach port that it's returning? Is there a workaround? Can I get the IONotificationPortRef associated with an existing mach port somehow? Thanks, Joel P.S. This is the relevant chunk of CreateInterfaceAsyncPort IOReturn IOUSBInterfaceClass::CreateInterfaceAsyncPort(mach_port_t *port) { IOReturn kr; mach_port_t masterPort; ATTACHEDCHECK(); // If we already have a port, don't create a new one. if (fAsyncPort) { if (port) *port = IONotificationPortGetMachPort(fAsyncPort); return kIOReturnSuccess; } // First create a master_port for my task kr = IOMasterPort(MACH_PORT_NULL, &masterPort); if (kr || !masterPort) return kIOReturnError; fAsyncPort = IONotificationPortCreate(masterPort); ... --- http://twitter.com/wagerlabs _______________________________________________ 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

A bug in write() / pwrite() ?
by Jorge Chamorro 18 Nov '10

18 Nov '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Hi, When writing to a file -fast enough- from a bunch of threads, I get holes filled with zeros in the output. It's like if the filepointer were being updated properly, but the write()s had wrote nothing. I've got a test case here : http://gist.github.com/703744 Examine the output file and see if you can find any strings of zeroes in it. Is this a race bug in the write() syscall, or is it me missing something ? Thanks, -- Jorge. _______________________________________________ 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

Open Source Release for Mac OS X 10.6.5
by William Siegrist 17 Nov '10

17 Nov '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com The open source components of Mac OS X 10.6.5 have been released. http://www.opensource.apple.com/release/mac-os-x-1065/ 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

1 0

Linking issue between 10.5 and 10.6
by Nick Blievers 16 Nov '10

16 Nov '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

Writing a Networking filter
by eveningnick eveningnick 12 Nov '10

12 Nov '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:received:date:message-id :subject:from:to:content-type; bh=aHFKIQbrbYdQCQLyhOA/aeIUnav5PuMVsp5srCYlDCs=; b=Sr4ZIBBIZWp9t6tMDqAIfObytvN9QtJKPF8B4aVhrahf8yyLCnmxcpe3t0s1YLYl3d ky51N3K9/afs7lxfTEPKSvuEjzhqySmu/knEKUegtbbB6bSd+rl4OnHpYfjFMjOQ0EVR 0uMY2UzyB7D9aLKC5JoyP+7gG4WyJeaCJ2TJg= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=VbqEaORo+dC6CPaBAXBYH7mn8X60FHN2aqiwBXIYt0qpuLy7/is9S3Yrw/AHrTixGS lAkLx199UIfi360nt6rt/6rrdvVVBdSuRDRQXBmWbatQaVUV6P8C+fQrdtPHDfBX6f9S SUx6PNSHrg5CA669SItx/SYvD01XqEQc+xgl0= Hello I am trying to find a way to write a networking filter for Mac OS X. This application should intercept all the of browsers requests and if the IP address/domain matches some specific value, i need to send to a browser a simple page instead, that tells that a user is not allowed to go to the site. (This is some kind of parental control) At what level should i implement this? What manuals should I read? I am a desktop mac developer, and before have been writing filter drivers only for Windows. I guess there is a lot of things to learn for me, but i don't even know where to start. Could you give me a hint? Thanks! _______________________________________________ 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: Retrieving information about loaded kernel extensions
by Terry Lambert 10 Nov '10

10 Nov '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Nov 10, 2010, at 2:52 AM, nithesh salian wrote: > Bug ID# 6974408 > > On Fri, Oct 1, 2010 at 8:59 PM, Andrew Myrick <amyrick(a)apple.com> wrote: >> There is no supported API for accessing information about loaded kexts. If you need one, please file a bug report. >> >> -Andrew >> >> On Oct 1, 2010, at 6:39 AM, nithesh salian wrote: >> >>> Kexstat is command line tool for accessing the loaded module info. >>> >>> However, I have to access the information inside a user level application. How can i do that? Are there any interfaces supported in Snow leopard. >>> >>> kmod_get_info also doesnt work on Snow Leopard. Kindly help. >>> >>> >>> >>> On Wed, Sep 29, 2010 at 6:54 PM, Alexander von Below <below(a)mac.com> wrote: >>> kextstat 8 >>> >>> I would just pipe and parse that. That way you are completely independent of the system you are running on. >>> >>> For more details, look in http://opensource.apple.com/source/IOKitUser/IOKitUser-502.0.3/kext.subproj… >>> >>> As an aside: A lot of people read darwin-dev AND darwin-drivers. Please do NOT crosspost >>> >>> Alex Nithesh, this is an incredibly trivial coding problem which you should not need to solve if you are writing your code with the correct mindset. Here is a possible implementation of what Alex was talking about; this took me half an hour to write and debug. Comment out the definition of TEST, add a header, and you have an API. I was lazy about the version parsing, since version numbers are actually strings from a plist, not really numbers, and I left the linkages (when they exist) as space separated lists of ID numbers, since I can't possibly see their use except for debugging, and for that you have kextstat. Again, you should not ever be writing code that needs this information in this format in the first place, so I encourage you to rethink your problem solution. -- Terry #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> // -l option is to omit the header line #define CMD_KEXTSTAT "/usr/sbin/kextstat -l" struct kextinfo { struct kextinfo *ki_next; int ki_index; int ki_refs; unsigned long long ki_addr; unsigned long long ki_size; unsigned long long ki_wired; char *ki_name; char *ki_version; char *ki_links; // Note: may validly be NULL }; void kextinfo_free(struct kextinfo *head) { struct kextinfo *kip; for (kip = head; kip != NULL;) { struct kextinfo *kidel = kip; kip = kip->ki_next; if (kidel->ki_name != NULL) free(kidel->ki_name); if (kidel->ki_version != NULL) free(kidel->ki_version); if (kidel->ki_links != NULL) free(kidel->ki_links); free(kidel); } } struct kextinfo * kextinfo(void) { FILE *fp; // pipe to kextstat struct kextinfo *rv = NULL; // default return struct kextinfo **mallocpp = &rv; // chaining struct kextinfo staging; // staging buffer char linebuf[1024]; // MAXPATHLEN for input line char namebuf[1024]; // KEXT name char versionbuf[1024]; // KEXT version char linkbuf[1024]; // KEXT linkages int count; if ((fp = popen(CMD_KEXTSTAT, "r")) != NULL) { while(fgets( linebuf, sizeof(linebuf), fp) != NULL) { // line too long for buffer or bad kextstat ouput? if (linebuf[strlen(linebuf) - 1] != '\n') goto bad; memset(&staging, 0, sizeof(struct kextinfo)); count = sscanf(linebuf, "%d %d %llx %llx %llx %s %s <%s>", &staging.ki_index, &staging.ki_refs, &staging.ki_addr, &staging.ki_size, &staging.ki_wired, namebuf, versionbuf, linkbuf); *mallocpp = malloc(sizeof(struct kextinfo)); if (*mallocpp == NULL) goto bad; **mallocpp = staging; if (((*mallocpp)->ki_name = strdup(namebuf)) == NULL) goto bad; if (((*mallocpp)->ki_version = strdup(versionbuf)) == NULL) goto bad; // cheat; only do links if we saw one... if (count == 8 && ((*mallocpp)->ki_links = strdup(linkbuf)) == NULL) goto bad; mallocpp = &(*mallocpp)->ki_next; } pclose(fp); } return (rv); bad: // Unwind progress so far... kextinfo_free(rv); return(NULL); } #define TEST 1 #ifdef TEST int main(int ac, char *av[]) { struct kextinfo *kilist = kextinfo(); struct kextinfo *kip; if (kilist == NULL) { printf("kextinfo() failed\n"); exit(1); } for (kip = kilist; kip != NULL; kip = kip->ki_next) { printf("KEXT %d name %s\n", kip->ki_index, kip->ki_name); } kextinfo_free(kilist); exit(0); } #endif // TEST _______________________________________________ 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: Retrieving information about loaded kernel extensions
by nithesh salian 10 Nov '10

10 Nov '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:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=GraoF0rPMqdrf6VYUohNOfD2WVhGYO4lmBaTL23xXIg=; b=XUt6SRw/If7erynZQdnbQDswpYalP3HjnWtA+Muyt/DAfVGFSALLImnZGPXEiA/W36 35PZxZkvShfjq9jR3fmNbS1FdI3aOapqEmVXLABzwJ0Kb/Fv8X6IGMAz20qtCqR1yNxT g+cY5fFvYfhCyJuzIqlp82SG3rhC0EGCXQlU0= 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 :cc:content-type; b=f2r1Q9xz80cNxY+3d0AudnU42SoFGEcb8FtkE5ixOffajY0ww1Gc4JjbrLiE4Ga8oo QUd6vzhucF3CZ0zQvohYvx60S/eeA/79V4yln7FoLHys5b18iP6r6V8WL2qBikjNZtyS OHWEaV+hRsaZFWfFVXqzDarRT08BmtmWGVDQg= _______________________________________________ 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: sleep and wakeup problem using DHCP
by Terry Lambert 09 Nov '10

09 Nov '10

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com On Nov 9, 2010, at 5:30 AM, kiran kumar wrote: > Hi All, > > i am new to the drivers. > I am porting a my ethernet driver to 10.5x. > I set the configure ip to DHCP mode when pc sleep and wakeup it work fine in 10.4x.The same thing not work in 10.5x. > > In my code there is no initialize power management using PMinit,joinPMtree,registerPowerDriver, setPowerState these methods. > > And also whenever system sleep and wakeup i am not getting any notification from the driver in message() method . > > how to initialize power management in my code.can any one reply me plz You are more or less on the wrong mailing list. The correct list for driver related questions is the drivers mailing list: <http://lists.apple.com/mailman/listinfo/darwin-drivers> Andrew Myrick has already given you some good advice to getting started. I would suggest you consider starting with an existing published driver similar in function to the driver you are wanting to port, and modifying it for your specific hardware. You may believe that your driver is not calling those power managment routines, but it will in fact call them as part of the IONetworkController::start() function or as a result of your override of this function. Here's a dated but still useful overview as a starting point: <http://arstechnica.com/civis/viewtopic.php?f=19&t=541944> Here's the Apple reference material: <http://developer.apple.com/library/mac/#documentation/Darwin/Reference/IOKi…> -- Terry _______________________________________________ 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