New input/process plugin to accept IPFIX flow records on a socket #281
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Systems were ipfix traffic is metered/counted by the hardware support this new input plugin sock and the corresponding process plugin sockpktinfo can be useful to receive and process ipfix flow information in form of switch records via a unix domain socket which then can be formatted in ipfix data packet and exported to a collector via ipfixprobe. Add some new fields for IPv4 and IPv6 that could be useful.
Make sure fd is valid before exporting data to the collector.
If the sock stream connection with the collector is disrupted and socket is still being written to then it can generate a SIGPIPE which is not being handled. This patch allows SIGPIPE signal to be ignored. The EPIPE error is handled after the sendto call.
lokeshdh
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The devices that we use have IPFIX support in the silicon which allows us to identify IPFIX flows. This new plugin allows the IPFIX flow data to be passed onto the IPFIXPROBE's sock(Unix domain socket) plugin which allows the tool to generate IPFIX data packets and export them to the collector.
Additional changes:
Making LZ4 conditionally compile via -DENABLE_OUTPUT_LZ4=ON
Making UNWIND conditionally compile via -DENABLE_UNWIND=ON