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26e90931 AS |
1 | /* Copyright (c) 2016 Facebook |
2 | * | |
3 | * This program is free software; you can redistribute it and/or | |
4 | * modify it under the terms of version 2 of the GNU General Public | |
5 | * License as published by the Free Software Foundation. | |
6 | */ | |
7 | #include <linux/skbuff.h> | |
8 | #include <linux/netdevice.h> | |
9 | #include <linux/version.h> | |
10 | #include <uapi/linux/bpf.h> | |
11 | #include "bpf_helpers.h" | |
12 | ||
13 | #define MAX_ENTRIES 1000 | |
14 | ||
15 | struct bpf_map_def SEC("maps") hash_map = { | |
16 | .type = BPF_MAP_TYPE_HASH, | |
17 | .key_size = sizeof(u32), | |
18 | .value_size = sizeof(long), | |
19 | .max_entries = MAX_ENTRIES, | |
20 | }; | |
21 | ||
5db58faf MKL |
22 | struct bpf_map_def SEC("maps") lru_hash_map = { |
23 | .type = BPF_MAP_TYPE_LRU_HASH, | |
24 | .key_size = sizeof(u32), | |
25 | .value_size = sizeof(long), | |
26 | .max_entries = 10000, | |
27 | }; | |
28 | ||
29 | struct bpf_map_def SEC("maps") percpu_lru_hash_map = { | |
30 | .type = BPF_MAP_TYPE_LRU_HASH, | |
31 | .key_size = sizeof(u32), | |
32 | .value_size = sizeof(long), | |
33 | .max_entries = 10000, | |
34 | .map_flags = BPF_F_NO_COMMON_LRU, | |
35 | }; | |
36 | ||
26e90931 AS |
37 | struct bpf_map_def SEC("maps") percpu_hash_map = { |
38 | .type = BPF_MAP_TYPE_PERCPU_HASH, | |
39 | .key_size = sizeof(u32), | |
40 | .value_size = sizeof(long), | |
41 | .max_entries = MAX_ENTRIES, | |
42 | }; | |
43 | ||
44 | struct bpf_map_def SEC("maps") hash_map_alloc = { | |
45 | .type = BPF_MAP_TYPE_HASH, | |
46 | .key_size = sizeof(u32), | |
47 | .value_size = sizeof(long), | |
48 | .max_entries = MAX_ENTRIES, | |
49 | .map_flags = BPF_F_NO_PREALLOC, | |
50 | }; | |
51 | ||
52 | struct bpf_map_def SEC("maps") percpu_hash_map_alloc = { | |
53 | .type = BPF_MAP_TYPE_PERCPU_HASH, | |
54 | .key_size = sizeof(u32), | |
55 | .value_size = sizeof(long), | |
56 | .max_entries = MAX_ENTRIES, | |
57 | .map_flags = BPF_F_NO_PREALLOC, | |
58 | }; | |
59 | ||
60 | SEC("kprobe/sys_getuid") | |
61 | int stress_hmap(struct pt_regs *ctx) | |
62 | { | |
63 | u32 key = bpf_get_current_pid_tgid(); | |
64 | long init_val = 1; | |
65 | long *value; | |
66 | ||
67 | bpf_map_update_elem(&hash_map, &key, &init_val, BPF_ANY); | |
68 | value = bpf_map_lookup_elem(&hash_map, &key); | |
69 | if (value) | |
70 | bpf_map_delete_elem(&hash_map, &key); | |
5db58faf | 71 | |
26e90931 AS |
72 | return 0; |
73 | } | |
74 | ||
75 | SEC("kprobe/sys_geteuid") | |
76 | int stress_percpu_hmap(struct pt_regs *ctx) | |
77 | { | |
78 | u32 key = bpf_get_current_pid_tgid(); | |
79 | long init_val = 1; | |
80 | long *value; | |
81 | ||
82 | bpf_map_update_elem(&percpu_hash_map, &key, &init_val, BPF_ANY); | |
83 | value = bpf_map_lookup_elem(&percpu_hash_map, &key); | |
84 | if (value) | |
85 | bpf_map_delete_elem(&percpu_hash_map, &key); | |
86 | return 0; | |
87 | } | |
88 | SEC("kprobe/sys_getgid") | |
89 | int stress_hmap_alloc(struct pt_regs *ctx) | |
90 | { | |
91 | u32 key = bpf_get_current_pid_tgid(); | |
92 | long init_val = 1; | |
93 | long *value; | |
94 | ||
95 | bpf_map_update_elem(&hash_map_alloc, &key, &init_val, BPF_ANY); | |
96 | value = bpf_map_lookup_elem(&hash_map_alloc, &key); | |
97 | if (value) | |
98 | bpf_map_delete_elem(&hash_map_alloc, &key); | |
99 | return 0; | |
100 | } | |
101 | ||
102 | SEC("kprobe/sys_getegid") | |
103 | int stress_percpu_hmap_alloc(struct pt_regs *ctx) | |
104 | { | |
105 | u32 key = bpf_get_current_pid_tgid(); | |
106 | long init_val = 1; | |
107 | long *value; | |
108 | ||
109 | bpf_map_update_elem(&percpu_hash_map_alloc, &key, &init_val, BPF_ANY); | |
110 | value = bpf_map_lookup_elem(&percpu_hash_map_alloc, &key); | |
111 | if (value) | |
112 | bpf_map_delete_elem(&percpu_hash_map_alloc, &key); | |
113 | return 0; | |
114 | } | |
5db58faf MKL |
115 | |
116 | SEC("kprobe/sys_getpid") | |
117 | int stress_lru_hmap_alloc(struct pt_regs *ctx) | |
118 | { | |
119 | u32 key = bpf_get_prandom_u32(); | |
120 | long val = 1; | |
121 | ||
122 | bpf_map_update_elem(&lru_hash_map, &key, &val, BPF_ANY); | |
123 | ||
124 | return 0; | |
125 | } | |
126 | ||
127 | SEC("kprobe/sys_getppid") | |
128 | int stress_percpu_lru_hmap_alloc(struct pt_regs *ctx) | |
129 | { | |
130 | u32 key = bpf_get_prandom_u32(); | |
131 | long val = 1; | |
132 | ||
133 | bpf_map_update_elem(&percpu_lru_hash_map, &key, &val, BPF_ANY); | |
134 | ||
135 | return 0; | |
136 | } | |
137 | ||
26e90931 AS |
138 | char _license[] SEC("license") = "GPL"; |
139 | u32 _version SEC("version") = LINUX_VERSION_CODE; |