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[bpf-next,00/10] selftests/bpf: migrate test_flow_dissector.sh to test_progs

Message ID 20241113-flow_dissector-v1-0-27c4df0592dc@bootlin.com
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Series selftests/bpf: migrate test_flow_dissector.sh to test_progs | expand

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Alexis Lothoré Nov. 13, 2024, 1:53 p.m. UTC 
Hello,
this new series aims to migrate test_flow_dissector.sh into test_progs.
There are 2 "main" parts in test_flow_dissector.sh:
- a set of tests checking flow_dissector programs attachment to either
  root namespace or non-root namespace
- dissection test

The first set is integrated in flow_dissector.c, which already contains
some existing tests for flow_dissector programs. This series uses the
opportunity to update a bit this file (use new assert, re-split tests,
etc)
The second part is migrated into a new file under test_progs,
flow_dissector_classification.c. It uses the same eBPF programs as
flow_dissector.c, but the difference is rather about how those program
are executed:
- flow_dissector.c manually runs programs with BPF_PROG_RUN
- flow_dissector_classification.c sends real packets to be dissected, and
  so it also executes kernel code related to eBPF flow dissector (eg:
__skb_flow_bpf_to_target)

---
Alexis Lothoré (eBPF Foundation) (10):
      selftests/bpf: add a macro to compare raw memory
      selftests/bpf: use ASSERT_MEMEQ to compare bpf flow keys
      selftests/bpf: replace CHECK calls with ASSERT macros in flow_dissector test
      selftests/bpf: re-split main function into dedicated tests
      selftests/bpf: expose all subtests from flow_dissector
      selftests/bpf: add gre packets testing to flow_dissector
      selftests/bpf: migrate flow_dissector namespace exclusivity test
      selftests/bpf: Enable generic tc actions in selftests config
      selftests/bpf: migrate bpf flow dissectors tests to test_progs
      selftests/bpf: remove test_flow_dissector.sh

 tools/testing/selftests/bpf/.gitignore             |   1 -
 tools/testing/selftests/bpf/Makefile               |   3 +-
 tools/testing/selftests/bpf/config                 |   1 +
 .../selftests/bpf/prog_tests/flow_dissector.c      | 307 ++++++--
 .../bpf/prog_tests/flow_dissector_classification.c | 851 +++++++++++++++++++++
 tools/testing/selftests/bpf/test_flow_dissector.c  | 780 -------------------
 tools/testing/selftests/bpf/test_flow_dissector.sh | 178 -----
 tools/testing/selftests/bpf/test_progs.h           |  25 +
 8 files changed, 1107 insertions(+), 1039 deletions(-)
---
base-commit: 16e1d1c377aa4c56223701a31f3bfa88505e7e4f
change-id: 20241019-flow_dissector-3eb0c07fc163

Best regards,