Date: Tue, 22 May 2001 19:42:52 +0100 From: Brian Somers <brian@Awfulhak.org> To: freebsd-arch@FreeBSD.org Cc: Brian Somers <brian@Awfulhak.org> Subject: RFC: unit_list routines Message-ID: <200105221842.f4MIgqb84117@hak.lan.Awfulhak.org>
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Hi, I want to change if_tun.c so that userland can open /dev/tun and get back a /dev/tunX device. To do this, I need to track the units that have (or haven't) been opened, and I figure other devices may wish to do this too. To this end, I've written the attached URLs for /sys/kern/unit_list.c /sys/sys/unit_list.h and have also attached URLs for patches to /sys/conf/files and /sys/net/if_tun.c. The unit_list stuff is designed to be an easy way of tracking sparce arrays of units - arrays that are generally expected to start at zero and increment, but may sometimes be allocated randomly. I haven't tested as extensively as I plan to because my dev box is useless at the moment due to mutex problems, but I believe it works :) I ansified if_tun.c while I was there - sorry if that complicates any reviews :-/ Comments ? ftp://ftp.Awfulhak.org/pub/unit_list/sys-kern-unit_list.c ftp://ftp.Awfulhak.org/pub/unit_list/sys-sys-unit_list.h ftp://ftp.Awfulhak.org/pub/unit_list/sys-conf-files.patch ftp://ftp.Awfulhak.org/pub/unit_list/sys-net-if_tun.c.patch Cheers. -- Brian <brian@Awfulhak.org> <brian@[uk.]FreeBSD.org> <http://www.Awfulhak.org>; <brian@[uk.]OpenBSD.org> Don't _EVER_ lose your sense of humour ! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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