1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2024 Benjamin Tissoires
*/
#include "bpf_experimental.h"
#include <bpf/bpf_helpers.h>
#include "bpf_misc.h"
#include "../bpf_testmod/bpf_testmod_kfunc.h"
char _license[] SEC("license") = "GPL";
struct elem {
struct bpf_wq w;
};
struct {
__uint(type, BPF_MAP_TYPE_ARRAY);
__uint(max_entries, 2);
__type(key, int);
__type(value, struct elem);
} array SEC(".maps");
struct {
__uint(type, BPF_MAP_TYPE_LRU_HASH);
__uint(max_entries, 4);
__type(key, int);
__type(value, struct elem);
} lru SEC(".maps");
SEC("tc")
/* test that bpf_wq_init takes a map as a second argument
*/
__log_level(2)
__flag(BPF_F_TEST_STATE_FREQ)
__failure
__msg(": (85) call bpf_wq_init#") /* anchor message */
__msg("pointer in R2 isn't map pointer")
long test_wq_init_nomap(void *ctx)
{
struct bpf_wq *wq;
struct elem *val;
int key = 0;
val = bpf_map_lookup_elem(&array, &key);
if (!val)
return -1;
wq = &val->w;
if (bpf_wq_init(wq, &key, 0) != 0)
return -3;
return 0;
}
SEC("tc")
/* test that the workqueue is part of the map in bpf_wq_init
*/
__log_level(2)
__flag(BPF_F_TEST_STATE_FREQ)
__failure
__msg(": (85) call bpf_wq_init#") /* anchor message */
__msg("workqueue pointer in R1 map_uid=0 doesn't match map pointer in R2 map_uid=0")
long test_wq_init_wrong_map(void *ctx)
{
struct bpf_wq *wq;
struct elem *val;
int key = 0;
val = bpf_map_lookup_elem(&array, &key);
if (!val)
return -1;
wq = &val->w;
if (bpf_wq_init(wq, &lru, 0) != 0)
return -3;
return 0;
}
|
