Re: Call function on sysctl value change
Matthew Jakeman wrote: I was wondering if it is possible to call a function when a sysctl value is changed. I have added a few sysctl int variables to the kernel and for some of these i only want certain values to be acceptable as input depending on some conditions. I would like to be able to call a function if possible, to validate the value entered via the sysctl command. Yes, you can do this with a PROC type sysctl. For example, look at sysctl_hlt_cpus() in sys/i386/i386/mp_machdep.c. Best regards Oliver -- Oliver Fromme, secnetix GmbH Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd Whatever happened to the days when hacking started at the cerebral cortex, and not at the keyboard? -- Sid on userfriendly.org by Illiad, 2007-06-20 ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Call function on sysctl value change
Matthew Jakeman [EMAIL PROTECTED] writes: I was wondering if it is possible to call a function when a sysctl value is changed. grep -r SYSCTL_ADD_PROC /usr/src/sys DES -- Dag-Erling Smørgrav - [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Call function on sysctl value change
On Wednesday 15 October 2008, Dag-Erling Smørgrav wrote: Dag-Erling Smørgrav [EMAIL PROTECTED] writes: Matthew Jakeman [EMAIL PROTECTED] writes: I was wondering if it is possible to call a function when a sysctl value is changed. grep -r SYSCTL_ADD_PROC /usr/src/sys even better: 'man SYSCTL_ADD_PROC' will answer all your questions. DES Thanks for that. It looks like just the job. Now exactly sure how I missed it in the first place but thanks... ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Call function on sysctl value change
Hi all, I was wondering if it is possible to call a function when a sysctl value is changed. I have added a few sysctl int variables to the kernel and for some of these i only want certain values to be acceptable as input depending on some conditions. I would like to be able to call a function if possible, to validate the value entered via the sysctl command. Thanks in advance Matt ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
