K 10
svn:author
V 4
csjp
K 8
svn:date
V 27
2008-09-16T20:32:29.416824Z
K 7
svn:log
V 573
Implement zero-copy bpf(4) buffer or "zbuf" support for libpcap.  A slightly
different version has been committed upstream in the libpcap vendor branch.
This will allow people to experiment with zero-copy bpf(4) without requiring
external patches.

Note to enable this functionality:

    sysctl net.bpf.zerocopy_enable=1

By default, libpcap will use the legacy buffering method unless this sysctl
variable is set to 1.

For the details about zero-copy bpf(4) implementation see svn change r177548.

Requested by:		many
Discussed with:		sam
In collaboration with:	rwatson

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