bpf_struct_ops_test_run() will be used to run struct_ops program
from bpf_dummy_ops and now its main purpose is to test the handling
of return value.
Signed-off-by: Hou Tao <houtao1@xxxxxxxxxx>
---
kernel/bpf/bpf_struct_ops.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c
index ec3c25174923..3cedd2f489db 100644
--- a/kernel/bpf/bpf_struct_ops.c
+++ b/kernel/bpf/bpf_struct_ops.c
@@ -11,6 +11,9 @@
#include <linux/refcount.h>
#include <linux/mutex.h>
+static int bpf_struct_ops_test_run(struct bpf_prog *prog,
+ const union bpf_attr *kattr,
+ union bpf_attr __user *uattr);
enum bpf_struct_ops_state {
BPF_STRUCT_OPS_STATE_INIT,
BPF_STRUCT_OPS_STATE_INUSE,
@@ -93,6 +96,7 @@ const struct bpf_verifier_ops bpf_struct_ops_verifier_ops = {
};
const struct bpf_prog_ops bpf_struct_ops_prog_ops = {
+ .test_run = bpf_struct_ops_test_run,
};
static const struct btf_type *module_type;
@@ -666,3 +670,16 @@ void bpf_struct_ops_put(const void *kdata)
call_rcu(&st_map->rcu, bpf_struct_ops_put_rcu);
}
}
+
+static int bpf_struct_ops_test_run(struct bpf_prog *prog,
+ const union bpf_attr *kattr,
+ union bpf_attr __user *uattr)
+{
+ const struct bpf_struct_ops *st_ops;
+
+ st_ops = bpf_struct_ops_find(prog->aux->attach_btf_id);
+ if (st_ops != &bpf_bpf_dummy_ops)
+ return -EOPNOTSUPP;
+
+ return bpf_dummy_st_ops_test_run(prog, kattr, uattr);
+}
--
2.29.2
