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| author | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2022-04-25 03:19:01 +0530 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-04-25 20:26:45 -0700 |
| commit | 792c0a345f0eb2a6bb12afcca1cf6e518bf57b43 (patch) | |
| tree | 5331a23b54ef32a3d8e1a8fab6838c38c167fc49 /net/bpf | |
| parent | 05a945deefaa9fe6d34f06f0ab0cbfc72e2dbfa0 (diff) | |
| download | linux-792c0a345f0eb2a6bb12afcca1cf6e518bf57b43.tar.gz linux-792c0a345f0eb2a6bb12afcca1cf6e518bf57b43.tar.bz2 linux-792c0a345f0eb2a6bb12afcca1cf6e518bf57b43.zip | |
selftests/bpf: Add test for strict BTF type check
Ensure that the edge case where first member type was matched
successfully even if it didn't match BTF type of register is caught and
rejected by the verifier.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220424214901.2743946-14-memxor@gmail.com
Diffstat (limited to 'net/bpf')
| -rw-r--r-- | net/bpf/test_run.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c index 29fe32821e7e..7a1579c91432 100644 --- a/net/bpf/test_run.c +++ b/net/bpf/test_run.c @@ -550,8 +550,13 @@ struct sock * noinline bpf_kfunc_call_test3(struct sock *sk) return sk; } +struct prog_test_member1 { + int a; +}; + struct prog_test_member { - u64 c; + struct prog_test_member1 m; + int c; }; struct prog_test_ref_kfunc { @@ -576,6 +581,12 @@ bpf_kfunc_call_test_acquire(unsigned long *scalar_ptr) return &prog_test_struct; } +noinline struct prog_test_member * +bpf_kfunc_call_memb_acquire(void) +{ + return &prog_test_struct.memb; +} + noinline void bpf_kfunc_call_test_release(struct prog_test_ref_kfunc *p) { } @@ -584,6 +595,10 @@ noinline void bpf_kfunc_call_memb_release(struct prog_test_member *p) { } +noinline void bpf_kfunc_call_memb1_release(struct prog_test_member1 *p) +{ +} + noinline struct prog_test_ref_kfunc * bpf_kfunc_call_test_kptr_get(struct prog_test_ref_kfunc **p, int a, int b) { @@ -673,8 +688,10 @@ BTF_ID(func, bpf_kfunc_call_test1) BTF_ID(func, bpf_kfunc_call_test2) BTF_ID(func, bpf_kfunc_call_test3) BTF_ID(func, bpf_kfunc_call_test_acquire) +BTF_ID(func, bpf_kfunc_call_memb_acquire) BTF_ID(func, bpf_kfunc_call_test_release) BTF_ID(func, bpf_kfunc_call_memb_release) +BTF_ID(func, bpf_kfunc_call_memb1_release) BTF_ID(func, bpf_kfunc_call_test_kptr_get) BTF_ID(func, bpf_kfunc_call_test_pass_ctx) BTF_ID(func, bpf_kfunc_call_test_pass1) @@ -689,16 +706,19 @@ BTF_SET_END(test_sk_check_kfunc_ids) BTF_SET_START(test_sk_acquire_kfunc_ids) BTF_ID(func, bpf_kfunc_call_test_acquire) +BTF_ID(func, bpf_kfunc_call_memb_acquire) BTF_ID(func, bpf_kfunc_call_test_kptr_get) BTF_SET_END(test_sk_acquire_kfunc_ids) BTF_SET_START(test_sk_release_kfunc_ids) BTF_ID(func, bpf_kfunc_call_test_release) BTF_ID(func, bpf_kfunc_call_memb_release) +BTF_ID(func, bpf_kfunc_call_memb1_release) BTF_SET_END(test_sk_release_kfunc_ids) BTF_SET_START(test_sk_ret_null_kfunc_ids) BTF_ID(func, bpf_kfunc_call_test_acquire) +BTF_ID(func, bpf_kfunc_call_memb_acquire) BTF_ID(func, bpf_kfunc_call_test_kptr_get) BTF_SET_END(test_sk_ret_null_kfunc_ids) |