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
