perf_event_sample_period.c

 1{
 2	"check bpf_perf_event_data->sample_period byte load permitted",
 3	.insns = {
 4	BPF_MOV64_IMM(BPF_REG_0, 0),
 5#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 6	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
 7		    offsetof(struct bpf_perf_event_data, sample_period)),
 8#else
 9	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
10		    offsetof(struct bpf_perf_event_data, sample_period) + 7),
11#endif
12	BPF_EXIT_INSN(),
13	},
14	.result = ACCEPT,
15	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
16},
17{
18	"check bpf_perf_event_data->sample_period half load permitted",
19	.insns = {
20	BPF_MOV64_IMM(BPF_REG_0, 0),
21#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
22	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
23		    offsetof(struct bpf_perf_event_data, sample_period)),
24#else
25	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
26		    offsetof(struct bpf_perf_event_data, sample_period) + 6),
27#endif
28	BPF_EXIT_INSN(),
29	},
30	.result = ACCEPT,
31	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
32},
33{
34	"check bpf_perf_event_data->sample_period word load permitted",
35	.insns = {
36	BPF_MOV64_IMM(BPF_REG_0, 0),
37#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
38	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
39		    offsetof(struct bpf_perf_event_data, sample_period)),
40#else
41	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
42		    offsetof(struct bpf_perf_event_data, sample_period) + 4),
43#endif
44	BPF_EXIT_INSN(),
45	},
46	.result = ACCEPT,
47	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
48},
49{
50	"check bpf_perf_event_data->sample_period dword load permitted",
51	.insns = {
52	BPF_MOV64_IMM(BPF_REG_0, 0),
53	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
54		    offsetof(struct bpf_perf_event_data, sample_period)),
55	BPF_EXIT_INSN(),
56	},
57	.result = ACCEPT,
58	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
59},