cvs commit: src/lib/libpcap config.h src/sys/net bpf.c

[Max Laier]

On Wednesday 13 August 2008 17:41:21 Ed Schouten wrote:
> ed          2008-08-13 15:41:21 UTC
>
>   FreeBSD src repository
>
>   Modified files:
>     lib/libpcap          config.h
>     sys/net              bpf.c
>   Log:
>   SVN rev 181690 on 2008-08-13 15:41:21Z by ed
>
>   Change bpf(4) to use the cdevpriv API.
>
>   Right now the bpf(4) driver uses the cloning API to generate /dev/bpf%u.
>   When an application such as tcpdump needs a BPF, it opens /dev/bpf0,
>   /dev/bpf1, etc. until it opens the first available device node. We used
>   this approach, because our devfs implementation didn't allow
>   per-descriptor data.
>
>   Now that we can, make it use devfs_get_cdevpriv() to obtain the private
>   data. To remain compatible with the existing implementation, add a
>   symlink from /dev/bpf0 to /dev/bpf. I've already changed libpcap to
>   compile with HAVE_CLONING_BPF, which makes it use /dev/bpf. There may be
>   other applications in the base system (dhclient) that use the loop to
>   obtain a valid bpf.

Can you bump __FreeBSD_version for this?  And maybe submit configure patches 
upstream and/or make sure that libpcap from ports dtrt.

>   Discussed on:   src-committers
>   Approved by:    csjp
>
>   Revision  Changes    Path
>   1.7       +1 -1      src/lib/libpcap/config.h
>   1.200     +62 -80    src/sys/net/bpf.c

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