bpf, tests: Add BPF_JMP32 test cases
An eBPF JIT may implement JMP32 operations in a different way than JMP, especially on 32-bit architectures. This patch adds a series of tests for JMP32 operations, mainly for testing JITs. Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20210809091829.810076-2-johan.almbladh@anyfinetworks.com
This commit is contained in:
Johan Almbladh
Daniel Borkmann
parent
d692a637b4
commit
b55dfa8500
511
lib/test_bpf.c
511
lib/test_bpf.c
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@ -4398,6 +4398,517 @@ static struct bpf_test tests[] = {
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{ { 0, 4134 } },
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.fill_helper = bpf_fill_stxdw,
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},
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/* BPF_JMP32 | BPF_JEQ | BPF_K */
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{
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"JMP32_JEQ_K: Small immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 123),
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BPF_JMP32_IMM(BPF_JEQ, R0, 321, 1),
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BPF_JMP32_IMM(BPF_JEQ, R0, 123, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 123 } }
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},
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{
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"JMP32_JEQ_K: Large immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 12345678),
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BPF_JMP32_IMM(BPF_JEQ, R0, 12345678 & 0xffff, 1),
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BPF_JMP32_IMM(BPF_JEQ, R0, 12345678, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 12345678 } }
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},
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{
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"JMP32_JEQ_K: negative immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, -123),
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BPF_JMP32_IMM(BPF_JEQ, R0, 123, 1),
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BPF_JMP32_IMM(BPF_JEQ, R0, -123, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, -123 } }
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},
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/* BPF_JMP32 | BPF_JEQ | BPF_X */
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{
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"JMP32_JEQ_X",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 1234),
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BPF_ALU32_IMM(BPF_MOV, R1, 4321),
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BPF_JMP32_REG(BPF_JEQ, R0, R1, 2),
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BPF_ALU32_IMM(BPF_MOV, R1, 1234),
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BPF_JMP32_REG(BPF_JEQ, R0, R1, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 1234 } }
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},
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/* BPF_JMP32 | BPF_JNE | BPF_K */
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{
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"JMP32_JNE_K: Small immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 123),
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BPF_JMP32_IMM(BPF_JNE, R0, 123, 1),
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BPF_JMP32_IMM(BPF_JNE, R0, 321, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 123 } }
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},
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{
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"JMP32_JNE_K: Large immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 12345678),
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BPF_JMP32_IMM(BPF_JNE, R0, 12345678, 1),
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BPF_JMP32_IMM(BPF_JNE, R0, 12345678 & 0xffff, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 12345678 } }
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},
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{
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"JMP32_JNE_K: negative immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, -123),
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BPF_JMP32_IMM(BPF_JNE, R0, -123, 1),
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BPF_JMP32_IMM(BPF_JNE, R0, 123, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, -123 } }
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},
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/* BPF_JMP32 | BPF_JNE | BPF_X */
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{
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"JMP32_JNE_X",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 1234),
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BPF_ALU32_IMM(BPF_MOV, R1, 1234),
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BPF_JMP32_REG(BPF_JNE, R0, R1, 2),
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BPF_ALU32_IMM(BPF_MOV, R1, 4321),
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BPF_JMP32_REG(BPF_JNE, R0, R1, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 1234 } }
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},
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/* BPF_JMP32 | BPF_JSET | BPF_K */
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{
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"JMP32_JSET_K: Small immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 1),
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BPF_JMP32_IMM(BPF_JSET, R0, 2, 1),
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BPF_JMP32_IMM(BPF_JSET, R0, 3, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 1 } }
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},
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{
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"JMP32_JSET_K: Large immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 0x40000000),
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BPF_JMP32_IMM(BPF_JSET, R0, 0x3fffffff, 1),
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BPF_JMP32_IMM(BPF_JSET, R0, 0x60000000, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 0x40000000 } }
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},
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{
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"JMP32_JSET_K: negative immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, -123),
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BPF_JMP32_IMM(BPF_JSET, R0, -1, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, -123 } }
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},
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/* BPF_JMP32 | BPF_JSET | BPF_X */
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{
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"JMP32_JSET_X",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 8),
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BPF_ALU32_IMM(BPF_MOV, R1, 7),
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BPF_JMP32_REG(BPF_JSET, R0, R1, 2),
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BPF_ALU32_IMM(BPF_MOV, R1, 8 | 2),
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BPF_JMP32_REG(BPF_JNE, R0, R1, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 8 } }
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},
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/* BPF_JMP32 | BPF_JGT | BPF_K */
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{
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"JMP32_JGT_K: Small immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 123),
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BPF_JMP32_IMM(BPF_JGT, R0, 123, 1),
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BPF_JMP32_IMM(BPF_JGT, R0, 122, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 123 } }
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},
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{
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"JMP32_JGT_K: Large immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 0xfffffffe),
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BPF_JMP32_IMM(BPF_JGT, R0, 0xffffffff, 1),
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BPF_JMP32_IMM(BPF_JGT, R0, 0xfffffffd, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 0xfffffffe } }
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},
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/* BPF_JMP32 | BPF_JGT | BPF_X */
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{
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"JMP32_JGT_X",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 0xfffffffe),
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BPF_ALU32_IMM(BPF_MOV, R1, 0xffffffff),
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BPF_JMP32_REG(BPF_JGT, R0, R1, 2),
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BPF_ALU32_IMM(BPF_MOV, R1, 0xfffffffd),
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BPF_JMP32_REG(BPF_JGT, R0, R1, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 0xfffffffe } }
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},
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/* BPF_JMP32 | BPF_JGE | BPF_K */
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{
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"JMP32_JGE_K: Small immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 123),
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BPF_JMP32_IMM(BPF_JGE, R0, 124, 1),
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BPF_JMP32_IMM(BPF_JGE, R0, 123, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 123 } }
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},
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{
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"JMP32_JGE_K: Large immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 0xfffffffe),
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BPF_JMP32_IMM(BPF_JGE, R0, 0xffffffff, 1),
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BPF_JMP32_IMM(BPF_JGE, R0, 0xfffffffe, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 0xfffffffe } }
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},
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/* BPF_JMP32 | BPF_JGE | BPF_X */
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{
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"JMP32_JGE_X",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 0xfffffffe),
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BPF_ALU32_IMM(BPF_MOV, R1, 0xffffffff),
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BPF_JMP32_REG(BPF_JGE, R0, R1, 2),
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BPF_ALU32_IMM(BPF_MOV, R1, 0xfffffffe),
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BPF_JMP32_REG(BPF_JGE, R0, R1, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 0xfffffffe } }
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},
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/* BPF_JMP32 | BPF_JLT | BPF_K */
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{
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"JMP32_JLT_K: Small immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 123),
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BPF_JMP32_IMM(BPF_JLT, R0, 123, 1),
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BPF_JMP32_IMM(BPF_JLT, R0, 124, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 123 } }
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},
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{
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"JMP32_JLT_K: Large immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 0xfffffffe),
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BPF_JMP32_IMM(BPF_JLT, R0, 0xfffffffd, 1),
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BPF_JMP32_IMM(BPF_JLT, R0, 0xffffffff, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 0xfffffffe } }
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},
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/* BPF_JMP32 | BPF_JLT | BPF_X */
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{
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"JMP32_JLT_X",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 0xfffffffe),
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BPF_ALU32_IMM(BPF_MOV, R1, 0xfffffffd),
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BPF_JMP32_REG(BPF_JLT, R0, R1, 2),
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BPF_ALU32_IMM(BPF_MOV, R1, 0xffffffff),
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BPF_JMP32_REG(BPF_JLT, R0, R1, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 0xfffffffe } }
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},
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/* BPF_JMP32 | BPF_JLE | BPF_K */
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{
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"JMP32_JLE_K: Small immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 123),
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BPF_JMP32_IMM(BPF_JLE, R0, 122, 1),
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BPF_JMP32_IMM(BPF_JLE, R0, 123, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 123 } }
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},
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{
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"JMP32_JLE_K: Large immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 0xfffffffe),
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BPF_JMP32_IMM(BPF_JLE, R0, 0xfffffffd, 1),
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BPF_JMP32_IMM(BPF_JLE, R0, 0xfffffffe, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 0xfffffffe } }
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},
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/* BPF_JMP32 | BPF_JLE | BPF_X */
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{
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"JMP32_JLE_X",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, 0xfffffffe),
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BPF_ALU32_IMM(BPF_MOV, R1, 0xfffffffd),
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BPF_JMP32_REG(BPF_JLE, R0, R1, 2),
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BPF_ALU32_IMM(BPF_MOV, R1, 0xfffffffe),
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BPF_JMP32_REG(BPF_JLE, R0, R1, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, 0xfffffffe } }
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},
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/* BPF_JMP32 | BPF_JSGT | BPF_K */
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{
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"JMP32_JSGT_K: Small immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, -123),
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BPF_JMP32_IMM(BPF_JSGT, R0, -123, 1),
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BPF_JMP32_IMM(BPF_JSGT, R0, -124, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, -123 } }
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},
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{
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"JMP32_JSGT_K: Large immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, -12345678),
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BPF_JMP32_IMM(BPF_JSGT, R0, -12345678, 1),
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BPF_JMP32_IMM(BPF_JSGT, R0, -12345679, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, -12345678 } }
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},
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/* BPF_JMP32 | BPF_JSGT | BPF_X */
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{
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"JMP32_JSGT_X",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, -12345678),
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BPF_ALU32_IMM(BPF_MOV, R1, -12345678),
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BPF_JMP32_REG(BPF_JSGT, R0, R1, 2),
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BPF_ALU32_IMM(BPF_MOV, R1, -12345679),
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BPF_JMP32_REG(BPF_JSGT, R0, R1, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, -12345678 } }
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},
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/* BPF_JMP32 | BPF_JSGE | BPF_K */
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{
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"JMP32_JSGE_K: Small immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, -123),
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BPF_JMP32_IMM(BPF_JSGE, R0, -122, 1),
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BPF_JMP32_IMM(BPF_JSGE, R0, -123, 1),
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BPF_ALU32_IMM(BPF_MOV, R0, 0),
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BPF_EXIT_INSN(),
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},
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INTERNAL,
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{ },
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{ { 0, -123 } }
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},
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{
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"JMP32_JSGE_K: Large immediate",
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.u.insns_int = {
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BPF_ALU32_IMM(BPF_MOV, R0, -12345678),
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BPF_JMP32_IMM(BPF_JSGE, R0, -12345677, 1),
|
||||
BPF_JMP32_IMM(BPF_JSGE, R0, -12345678, 1),
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
INTERNAL,
|
||||
{ },
|
||||
{ { 0, -12345678 } }
|
||||
},
|
||||
/* BPF_JMP32 | BPF_JSGE | BPF_X */
|
||||
{
|
||||
"JMP32_JSGE_X",
|
||||
.u.insns_int = {
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, -12345678),
|
||||
BPF_ALU32_IMM(BPF_MOV, R1, -12345677),
|
||||
BPF_JMP32_REG(BPF_JSGE, R0, R1, 2),
|
||||
BPF_ALU32_IMM(BPF_MOV, R1, -12345678),
|
||||
BPF_JMP32_REG(BPF_JSGE, R0, R1, 1),
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
INTERNAL,
|
||||
{ },
|
||||
{ { 0, -12345678 } }
|
||||
},
|
||||
/* BPF_JMP32 | BPF_JSLT | BPF_K */
|
||||
{
|
||||
"JMP32_JSLT_K: Small immediate",
|
||||
.u.insns_int = {
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, -123),
|
||||
BPF_JMP32_IMM(BPF_JSLT, R0, -123, 1),
|
||||
BPF_JMP32_IMM(BPF_JSLT, R0, -122, 1),
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
INTERNAL,
|
||||
{ },
|
||||
{ { 0, -123 } }
|
||||
},
|
||||
{
|
||||
"JMP32_JSLT_K: Large immediate",
|
||||
.u.insns_int = {
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, -12345678),
|
||||
BPF_JMP32_IMM(BPF_JSLT, R0, -12345678, 1),
|
||||
BPF_JMP32_IMM(BPF_JSLT, R0, -12345677, 1),
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
INTERNAL,
|
||||
{ },
|
||||
{ { 0, -12345678 } }
|
||||
},
|
||||
/* BPF_JMP32 | BPF_JSLT | BPF_X */
|
||||
{
|
||||
"JMP32_JSLT_X",
|
||||
.u.insns_int = {
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, -12345678),
|
||||
BPF_ALU32_IMM(BPF_MOV, R1, -12345678),
|
||||
BPF_JMP32_REG(BPF_JSLT, R0, R1, 2),
|
||||
BPF_ALU32_IMM(BPF_MOV, R1, -12345677),
|
||||
BPF_JMP32_REG(BPF_JSLT, R0, R1, 1),
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
INTERNAL,
|
||||
{ },
|
||||
{ { 0, -12345678 } }
|
||||
},
|
||||
/* BPF_JMP32 | BPF_JSLE | BPF_K */
|
||||
{
|
||||
"JMP32_JSLE_K: Small immediate",
|
||||
.u.insns_int = {
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, -123),
|
||||
BPF_JMP32_IMM(BPF_JSLE, R0, -124, 1),
|
||||
BPF_JMP32_IMM(BPF_JSLE, R0, -123, 1),
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
INTERNAL,
|
||||
{ },
|
||||
{ { 0, -123 } }
|
||||
},
|
||||
{
|
||||
"JMP32_JSLE_K: Large immediate",
|
||||
.u.insns_int = {
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, -12345678),
|
||||
BPF_JMP32_IMM(BPF_JSLE, R0, -12345679, 1),
|
||||
BPF_JMP32_IMM(BPF_JSLE, R0, -12345678, 1),
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
INTERNAL,
|
||||
{ },
|
||||
{ { 0, -12345678 } }
|
||||
},
|
||||
/* BPF_JMP32 | BPF_JSLE | BPF_K */
|
||||
{
|
||||
"JMP32_JSLE_X",
|
||||
.u.insns_int = {
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, -12345678),
|
||||
BPF_ALU32_IMM(BPF_MOV, R1, -12345679),
|
||||
BPF_JMP32_REG(BPF_JSLE, R0, R1, 2),
|
||||
BPF_ALU32_IMM(BPF_MOV, R1, -12345678),
|
||||
BPF_JMP32_REG(BPF_JSLE, R0, R1, 1),
|
||||
BPF_ALU32_IMM(BPF_MOV, R0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
INTERNAL,
|
||||
{ },
|
||||
{ { 0, -12345678 } }
|
||||
},
|
||||
/* BPF_JMP | BPF_EXIT */
|
||||
{
|
||||
"JMP_EXIT",
|
||||
|
|
|
|||
Loading…
Reference in New Issue