bpf: add tests to verifier testsuite
add 4 extra tests to cover jump verification better Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Родитель
f1bca824da
Коммит
fd10c2ef3e
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@ -461,6 +461,136 @@ static struct bpf_test tests[] = {
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.errstr = "R0 invalid mem access",
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.result = REJECT,
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},
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{
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"jump test 1",
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.insns = {
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BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
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BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5),
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_EXIT_INSN(),
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},
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.result = ACCEPT,
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},
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{
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"jump test 2",
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.insns = {
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BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
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BPF_JMP_IMM(BPF_JA, 0, 0, 14),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
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BPF_JMP_IMM(BPF_JA, 0, 0, 11),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
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BPF_JMP_IMM(BPF_JA, 0, 0, 8),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
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BPF_JMP_IMM(BPF_JA, 0, 0, 5),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
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BPF_JMP_IMM(BPF_JA, 0, 0, 2),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_EXIT_INSN(),
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},
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.result = ACCEPT,
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},
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{
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"jump test 3",
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.insns = {
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BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
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BPF_JMP_IMM(BPF_JA, 0, 0, 19),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
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BPF_JMP_IMM(BPF_JA, 0, 0, 15),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32),
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BPF_JMP_IMM(BPF_JA, 0, 0, 11),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40),
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BPF_JMP_IMM(BPF_JA, 0, 0, 7),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48),
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BPF_JMP_IMM(BPF_JA, 0, 0, 3),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0),
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BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56),
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BPF_LD_MAP_FD(BPF_REG_1, 0),
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_unspec),
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BPF_EXIT_INSN(),
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},
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.fixup = {24},
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.result = ACCEPT,
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},
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{
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"jump test 4",
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.insns = {
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
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BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_EXIT_INSN(),
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},
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.result = ACCEPT,
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},
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};
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static int probe_filter_length(struct bpf_insn *fp)
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