diff options
| author | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2022-11-14 22:15:28 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-11-15 08:52:45 +0300 |
| commit | 6728aea7216c0c06c98e2e58d753a5e8b2ae1c6f (patch) | |
| tree | 4397a958819a861067daa29aaa3c3a4983ffc89e /include/linux/filter.h | |
| parent | 894f2a8b1673a355a1a7507a4dfa6a3c836d07c1 (diff) | |
| download | linux-6728aea7216c0c06c98e2e58d753a5e8b2ae1c6f.tar.xz | |
bpf: Refactor btf_struct_access
Instead of having to pass multiple arguments that describe the register,
pass the bpf_reg_state into the btf_struct_access callback. Currently,
all call sites simply reuse the btf and btf_id of the reg they want to
check the access of. The only exception to this pattern is the callsite
in check_ptr_to_map_access, hence for that case create a dummy reg to
simulate PTR_TO_BTF_ID access.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20221114191547.1694267-8-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/linux/filter.h')
| -rw-r--r-- | include/linux/filter.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h index efc42a6e3aed..787d35dbf5b0 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -568,10 +568,10 @@ struct sk_filter { DECLARE_STATIC_KEY_FALSE(bpf_stats_enabled_key); extern struct mutex nf_conn_btf_access_lock; -extern int (*nfct_btf_struct_access)(struct bpf_verifier_log *log, const struct btf *btf, - const struct btf_type *t, int off, int size, - enum bpf_access_type atype, u32 *next_btf_id, - enum bpf_type_flag *flag); +extern int (*nfct_btf_struct_access)(struct bpf_verifier_log *log, + const struct bpf_reg_state *reg, + int off, int size, enum bpf_access_type atype, + u32 *next_btf_id, enum bpf_type_flag *flag); typedef unsigned int (*bpf_dispatcher_fn)(const void *ctx, const struct bpf_insn *insnsi, |