tcpdump mailing list archives

Re: [PATCH 03/04]: pcap-linux: support new tpacket frame header format

From: Guy Harris <guy () alum mit edu>
Date: Wed, 6 Aug 2008 01:33:07 -0700


On Jul 18, 2008, at 11:08 AM, Patrick McHardy wrote:

pcap-linux: support new tpacket frame header format

From: Patrick McHardy <kaber () trash net>

The tpacket_hdr is not clean for 64 bit kernel/32 bit userspace and
is not extendable because the struct sockaddr_ll following it is
expected at a fixed offset.

Linux 2.6.27-rc supports a new tpacket frame header that removes these
two limitations. Convert the mmap ring support to support both formats
and probe for availability of the new version.


Checked into the main and 1.0 branches.
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Current thread:

[PATCH 00/04]: libpcap: VLAN acceleration support Patrick McHardy (Jul 18)
- [PATCH 01/04]: pcap-linux: convert to recvmsg() Patrick McHardy (Jul 18)
  - Re: [PATCH 01/04]: pcap-linux: convert to recvmsg() Guy Harris (Aug 06)
- [PATCH 04/04]: pcap-linux: reconstruct VLAN headers from tpacket2_hdr Patrick McHardy (Jul 18)
  - Re: [PATCH 04/04]: pcap-linux: reconstruct VLAN headers from tpacket2_hdr Guy Harris (Aug 06)
- [PATCH 02/04]: pcap-linux: reconstruct VLAN header from PACKET_AUXDATA Patrick McHardy (Jul 18)
  - Re: [PATCH 02/04]: pcap-linux: reconstruct VLAN header from PACKET_AUXDATA Guy Harris (Aug 06)
- [PATCH 03/04]: pcap-linux: support new tpacket frame header format Patrick McHardy (Jul 18)
  - Re: [PATCH 03/04]: pcap-linux: support new tpacket frame header format Guy Harris (Aug 06)
- Re: [PATCH 00/04]: libpcap: VLAN acceleration support Guy Harris (Aug 06)