diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/map_kptr.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/map_kptr.c | 106 |
1 files changed, 104 insertions, 2 deletions
diff --git a/tools/testing/selftests/bpf/progs/map_kptr.c b/tools/testing/selftests/bpf/progs/map_kptr.c index 1b0e0409eaa5..eb8217803493 100644 --- a/tools/testing/selftests/bpf/progs/map_kptr.c +++ b/tools/testing/selftests/bpf/progs/map_kptr.c @@ -141,7 +141,7 @@ SEC("tc") int test_map_kptr(struct __sk_buff *ctx) { struct map_value *v; - int i, key = 0; + int key = 0; #define TEST(map) \ v = bpf_map_lookup_elem(&map, &key); \ @@ -162,7 +162,7 @@ SEC("tc") int test_map_in_map_kptr(struct __sk_buff *ctx) { struct map_value *v; - int i, key = 0; + int key = 0; void *map; #define TEST(map_in_map) \ @@ -187,4 +187,106 @@ int test_map_in_map_kptr(struct __sk_buff *ctx) return 0; } +SEC("tc") +int test_map_kptr_ref(struct __sk_buff *ctx) +{ + struct prog_test_ref_kfunc *p, *p_st; + unsigned long arg = 0; + struct map_value *v; + int key = 0, ret; + + p = bpf_kfunc_call_test_acquire(&arg); + if (!p) + return 1; + + p_st = p->next; + if (p_st->cnt.refs.counter != 2) { + ret = 2; + goto end; + } + + v = bpf_map_lookup_elem(&array_map, &key); + if (!v) { + ret = 3; + goto end; + } + + p = bpf_kptr_xchg(&v->ref_ptr, p); + if (p) { + ret = 4; + goto end; + } + if (p_st->cnt.refs.counter != 2) + return 5; + + p = bpf_kfunc_call_test_kptr_get(&v->ref_ptr, 0, 0); + if (!p) + return 6; + if (p_st->cnt.refs.counter != 3) { + ret = 7; + goto end; + } + bpf_kfunc_call_test_release(p); + if (p_st->cnt.refs.counter != 2) + return 8; + + p = bpf_kptr_xchg(&v->ref_ptr, NULL); + if (!p) + return 9; + bpf_kfunc_call_test_release(p); + if (p_st->cnt.refs.counter != 1) + return 10; + + p = bpf_kfunc_call_test_acquire(&arg); + if (!p) + return 11; + p = bpf_kptr_xchg(&v->ref_ptr, p); + if (p) { + ret = 12; + goto end; + } + if (p_st->cnt.refs.counter != 2) + return 13; + /* Leave in map */ + + return 0; +end: + bpf_kfunc_call_test_release(p); + return ret; +} + +SEC("tc") +int test_map_kptr_ref2(struct __sk_buff *ctx) +{ + struct prog_test_ref_kfunc *p, *p_st; + struct map_value *v; + int key = 0; + + v = bpf_map_lookup_elem(&array_map, &key); + if (!v) + return 1; + + p_st = v->ref_ptr; + if (!p_st || p_st->cnt.refs.counter != 2) + return 2; + + p = bpf_kptr_xchg(&v->ref_ptr, NULL); + if (!p) + return 3; + if (p_st->cnt.refs.counter != 2) { + bpf_kfunc_call_test_release(p); + return 4; + } + + p = bpf_kptr_xchg(&v->ref_ptr, p); + if (p) { + bpf_kfunc_call_test_release(p); + return 5; + } + if (p_st->cnt.refs.counter != 2) + return 6; + + return 0; +} + char _license[] SEC("license") = "GPL"; |