[dpdk-dev] No information about needed pcap version

David Marchand david.marchand at 6wind.com
Thu Jan 9 14:47:46 CET 2014


Indeed, this check on a define is wrong.

pcap.h does not seem to have information on library version (nor a #define
linked to pcap_sendpacket functionality).

We need to think of a better check but, for now, you can try to #define
PCAP_SEND to 1 in lib/librte_pmd_pcap/rte_eth_pcap.h.
pcap_sendpacket() is undefined for really old versions of libpcap (I think
< 1.0.0).
I suppose we might need something like configure (trying to link against
pcap lib and see if pcap_sendpacket symbol is defined).

Or we can revert 4fc6677d995bb46ddf155ee08a215f41e5ecbfe8 and declare
libpcap < X.X.X unsupported.

David Marchand

On Thu, Jan 9, 2014 at 12:59 PM, Mats Liljegren
<liljegren.mats2 at gmail.com>wrote:

> In file lib/librte_pmd_pcap/rte_eth_pcap.h there is a test to see
> whether function pcap_sendpacket is a macro or not. If not, send is
> not supported using pcap.
> My pcap library do have the function, but not defined as a macro.
> I'm using libpcap-dev version 1.4.0, but I couldn't find any
> information in the manuals what version I need.
> Which version do I need to make this work?
> Regards
> Mats

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