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bpf: encapsulate verifier log state into a structure

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Put the loose log_* variables into a structure.  This will make
it simpler to remove the global verifier state in following patches.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2017-10-09 10:30:10 -07:00 • committed by David S. Miller
parent a99ca6dbf4
commit e7bf8249e8
2 changed files with 43 additions and 27 deletions
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13
include/linux/bpf_verifier.h
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@ -115,6 +115,19 @@ struct bpf_insn_aux_data {
#define MAX_USED_MAPS 64 /* max number of maps accessed by one eBPF program */
struct bpf_verifer_log {
u32 level;
char *kbuf;
char __user *ubuf;
u32 len_used;
u32 len_total;
};
static inline bool bpf_verifier_log_full(const struct bpf_verifer_log *log)
{
return log->len_used >= log->len_total - 1;
}
struct bpf_verifier_env;
struct bpf_ext_analyzer_ops {
int (*insn_hook)(struct bpf_verifier_env *env,