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Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Tests non-add/sub operations (AND, LSH) on pointers decaying them to
unknown scalars.
Also tests that a pkt_ptr add which could potentially overflow is rejected
(find_good_pkt_pointers ignores it and doesn't give us any reg->range).
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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New test adds 14 to the unknown value before adding to the packet pointer,
meaning there's no 'fixed offset' field and instead we add into the
var_off, yielding a '4n+2' value.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Expectations have changed, as has the format of the logged state.
To make the tests easier to read, add a line-matching framework so that
each match need only quote the register it cares about. (Multiple
matches may refer to the same line, but matches must be listed in
order of increasing line.)
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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For the test_verifier case, it's quite hard to parse log level 2 to
figure out what's causing an issue when used to log level 1. We do
want to use bpf_verify_program() in order to simulate some of the
tests with strict alignment. So just add an argument to pass the level
and put it to 1 for test_verifier.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The selftests depend on using the shell exit code as a mean of
detecting the success or failure of test-binary executed. The
appropiate output "[PASS]" or "[FAIL]" in generated by
tools/testing/selftests/lib.mk.
Notice that the exit code is masked with 255. Thus, be careful if
using the number of errors as the exit code, as 256 errors would be
seen as a success.
There are two standard defined exit(3) codes:
/usr/include/stdlib.h
#define EXIT_FAILURE 1 /* Failing exit status. */
#define EXIT_SUCCESS 0 /* Successful exit status. */
Fix test_verifier.c to not use the negative value of variable
"results", but instead return EXIT_FAILURE.
Fix test_align.c and test_progs.c to actually use exit codes, before
they were always indicating success regardless of results.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When running all the tests, through 'make run_tests', I had
test_align failing due to insufficient rlimit. Set it the same
way as all other test cases from BPF selftests do, so that
test case properly loads everything.
[...]
Summary: 7 PASSED, 1 FAILED
selftests: test_progs [PASS]
/home/foo/net-next/tools/testing/selftests/bpf
Test 0: mov ... Failed to load program.
FAIL
Test 1: shift ... Failed to load program.
FAIL
Test 2: addsub ... Failed to load program.
FAIL
Test 3: mul ... Failed to load program.
FAIL
Test 4: unknown shift ... Failed to load program.
FAIL
Test 5: unknown mul ... Failed to load program.
FAIL
Test 6: packet const offset ... Failed to load program.
FAIL
Test 7: packet variable offset ... Failed to load program.
FAIL
Results: 0 pass 8 fail
selftests: test_align [PASS]
[...]
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We must accumulate into reg->aux_off rather than use a plain assignment.
Add a test for this situation to test_align.
Reported-by: Alexei Starovoitov <ast@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reported-by: Alexander Alemayhu <alexander@alemayhu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
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