[PATCH v6 0/5] Wireshark external capture for DPDK

[Stephen Hemminger]

This series adds live packet capture from a running DPDK primary over the
telemetry socket. A new capture library installs Rx/Tx callbacks on an
ethdev port and writes pcapng to a caller-supplied path or FIFO, with an
optional libpcap filter and per-queue selection. No application changes are
needed beyond linking the library.

Two front ends use it: a Wireshark extcap plugin that makes each DPDK port
appear in the Wireshark interface list, and a dpdk-dumpcap.py for
file capture without a secondary process.

The pcapng interface-statistics block gains a filter-accepted count,
which changes the rte_pcapng_write_stats() signature.

dpdk-dumpcap.py is not installed yet, since the name would shadow the
existing C dpdk-dumpcap.The long term plan is to remove pdump and
old dumpcap code and only support this new code.
Will take several releases to stablize first.

Stephen Hemminger (5):
  pcapng: extend interface statistics
  capture: infrastructure wireshark packet capture
  test: add test for capture hooks
  usertools/dpdk-wireshark-extcap.py: script for external capture
  usertools/dpdk-dumpcap: add script for file capture

 MAINTAINERS                            |    4 +
 app/dumpcap/main.c                     |   16 +-
 app/test/meson.build                   |    1 +
 app/test/test_capture.c                |  512 ++++++++++++
 app/test/test_pcapng.c                 |    6 +-
 doc/guides/rel_notes/release_26_11.rst |   11 +
 doc/guides/tools/index.rst             |    1 +
 doc/guides/tools/wireshark_extcap.rst  |  144 ++++
 lib/capture/capture.c                  | 1032 ++++++++++++++++++++++++
 lib/capture/capture_impl.h             |   56 ++
 lib/capture/filter.c                   |  108 +++
 lib/capture/meson.build                |   19 +
 lib/meson.build                        |    1 +
 lib/pcapng/rte_pcapng.c                |   32 +-
 lib/pcapng/rte_pcapng.h                |   30 +-
 usertools/dpdk-dumpcap.py              |  426 ++++++++++
 usertools/dpdk-wireshark-extcap.py     |  374 +++++++++
 17 files changed, 2744 insertions(+), 29 deletions(-)
 create mode 100644 app/test/test_capture.c
 create mode 100644 doc/guides/tools/wireshark_extcap.rst
 create mode 100644 lib/capture/capture.c
 create mode 100644 lib/capture/capture_impl.h
 create mode 100644 lib/capture/filter.c
 create mode 100644 lib/capture/meson.build
 create mode 100755 usertools/dpdk-dumpcap.py
 create mode 100755 usertools/dpdk-wireshark-extcap.py

-- 
2.53.0