1 {
2 "jset: functional",
3 .insns = {
4 BPF_DIRECT_PKT_R2,
5 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
6
7 /* reg, bit 63 or bit 0 set, taken */
8 BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
9 BPF_JMP_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
10 BPF_EXIT_INSN(),
11
12 /* reg, bit 62, not taken */
13 BPF_LD_IMM64(BPF_REG_8, 0x4000000000000000),
14 BPF_JMP_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
15 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
16 BPF_EXIT_INSN(),
17
18 /* imm, any bit set, taken */
19 BPF_JMP_IMM(BPF_JSET, BPF_REG_7, -1, 1),
20 BPF_EXIT_INSN(),
21
22 /* imm, bit 31 set, taken */
23 BPF_JMP_IMM(BPF_JSET, BPF_REG_7, 0x80000000, 1),
24 BPF_EXIT_INSN(),
25
26 /* all good - return r0 == 2 */
27 BPF_MOV64_IMM(BPF_REG_0, 2),
28 BPF_EXIT_INSN(),
29 },
30 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
31 .result = ACCEPT,
32 .runs = 7,
33 .retvals = {
34 { .retval = 2,
35 .data64 = { (1ULL << 63) | (1U << 31) | (1U << 0), }
36 },
37 { .retval = 2,
38 .data64 = { (1ULL << 63) | (1U << 31), }
39 },
40 { .retval = 2,
41 .data64 = { (1ULL << 31) | (1U << 0), }
42 },
43 { .retval = 2,
44 .data64 = { (__u32)-1, }
45 },
46 { .retval = 2,
47 .data64 = { ~0x4000000000000000ULL, }
48 },
49 { .retval = 0,
50 .data64 = { 0, }
51 },
52 { .retval = 0,
53 .data64 = { ~0ULL, }
54 },
55 },
56 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
57 },
58 {
59 "jset: sign-extend",
60 .insns = {
61 BPF_DIRECT_PKT_R2,
62 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
63
64 BPF_JMP_IMM(BPF_JSET, BPF_REG_7, 0x80000000, 1),
65 BPF_EXIT_INSN(),
66
67 BPF_MOV64_IMM(BPF_REG_0, 2),
68 BPF_EXIT_INSN(),
69 },
70 .prog_type = BPF_PROG_TYPE_SCHED_CLS,
71 .result = ACCEPT,
72 .retval = 2,
73 .data = { 1, 0, 0, 0, 0, 0, 0, 1, },
74 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
75 },
76 {
77 "jset: known const compare",
78 .insns = {
79 BPF_MOV64_IMM(BPF_REG_0, 1),
80 BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
81 BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
82 BPF_EXIT_INSN(),
83 },
84 .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
85 .errstr_unpriv = "R9 !read_ok",
86 .result_unpriv = REJECT,
87 .retval = 1,
88 .result = ACCEPT,
89 },
90 {
91 "jset: known const compare bad",
92 .insns = {
93 BPF_MOV64_IMM(BPF_REG_0, 0),
94 BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
95 BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
96 BPF_EXIT_INSN(),
97 },
98 .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
99 .errstr_unpriv = "!read_ok",
100 .result_unpriv = REJECT,
101 .errstr = "!read_ok",
102 .result = REJECT,
103 },
104 {
105 "jset: unknown const compare taken",
106 .insns = {
107 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
108 BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
109 BPF_JMP_IMM(BPF_JA, 0, 0, 1),
110 BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
111 BPF_EXIT_INSN(),
112 },
113 .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
114 .errstr_unpriv = "!read_ok",
115 .result_unpriv = REJECT,
116 .errstr = "!read_ok",
117 .result = REJECT,
118 },
119 {
120 "jset: unknown const compare not taken",
121 .insns = {
122 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
123 BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
124 BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
125 BPF_EXIT_INSN(),
126 },
127 .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
128 .errstr_unpriv = "!read_ok",
129 .result_unpriv = REJECT,
130 .errstr = "!read_ok",
131 .result = REJECT,
132 },
133 {
134 "jset: half-known const compare",
135 .insns = {
136 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
137 BPF_ALU64_IMM(BPF_OR, BPF_REG_0, 2),
138 BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 3, 1),
139 BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
140 BPF_MOV64_IMM(BPF_REG_0, 0),
141 BPF_EXIT_INSN(),
142 },
143 .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
144 .errstr_unpriv = "R9 !read_ok",
145 .result_unpriv = REJECT,
146 .result = ACCEPT,
147 },
148 {
149 "jset: range",
150 .insns = {
151 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
152 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
153 BPF_MOV64_IMM(BPF_REG_0, 0),
154 BPF_ALU64_IMM(BPF_AND, BPF_REG_1, 0xff),
155 BPF_JMP_IMM(BPF_JSET, BPF_REG_1, 0xf0, 3),
156 BPF_JMP_IMM(BPF_JLT, BPF_REG_1, 0x10, 1),
157 BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
158 BPF_EXIT_INSN(),
159 BPF_JMP_IMM(BPF_JSET, BPF_REG_1, 0x10, 1),
160 BPF_EXIT_INSN(),
161 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0x10, 1),
162 BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
163 BPF_EXIT_INSN(),
164 },
165 .prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
166 .errstr_unpriv = "R9 !read_ok",
167 .result_unpriv = REJECT,
168 .result = ACCEPT,
169 },
170
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