| Commit message (Collapse) | Author | Age | Files | Lines |
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Add netmap support to libpcap. Tcpdump and other native pcap clients
can now run directly on netmap ports using netmap:foo or valeXX:YY
as device names.
Modifications to existing code are small and trivial,
the netmap-specific code is all in a new file.
Please be aware that in netmap mode the physical interface is
disconnected from the host stack, so libpcap will steal the traffic
not just make a copy.
For the full version of the code (including linux and autotools support) see
https://code.google.com/p/netmap-libpcap/
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MFC after: 4 weeks
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MFC after: 4 weeks
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MFC after: 2 weeks
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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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Approved by: re (scottl)
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http://www.tcpdump.org/release/libpcap-0.7.1.tar.gz
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Obtained from: ftp://ftp.ee.lbl.gov/libpcap.tar.Z on 19-Aug-1996.
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