selftests: bpf: functional and min/max reasoning unit tests for JMP32
This patch adds unit tests for new JMP32 instructions. This patch also added the new BPF_JMP32_REG and BPF_JMP32_IMM macros to samples/bpf/bpf_insn.h so that JMP32 insn builders are available to tests under 'samples' directory. Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Jiong Wang <jiong.wang@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jiong Wang
Alexei Starovoitov
parent
461448398a
commit
6ea848b5ce
@ -164,6 +164,16 @@ struct bpf_insn;
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.off = OFF, \
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.imm = 0 })
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/* Like BPF_JMP_REG, but with 32-bit wide operands for comparison. */
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#define BPF_JMP32_REG(OP, DST, SRC, OFF) \
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((struct bpf_insn) { \
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.code = BPF_JMP32 | BPF_OP(OP) | BPF_X, \
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.dst_reg = DST, \
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.src_reg = SRC, \
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.off = OFF, \
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.imm = 0 })
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/* Conditional jumps against immediates, if (dst_reg 'op' imm32) goto pc + off16 */
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#define BPF_JMP_IMM(OP, DST, IMM, OFF) \
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@ -174,6 +184,16 @@ struct bpf_insn;
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.off = OFF, \
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.imm = IMM })
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/* Like BPF_JMP_IMM, but with 32-bit wide operands for comparison. */
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#define BPF_JMP32_IMM(OP, DST, IMM, OFF) \
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((struct bpf_insn) { \
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.code = BPF_JMP32 | BPF_OP(OP) | BPF_K, \
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.dst_reg = DST, \
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.src_reg = 0, \
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.off = OFF, \
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.imm = IMM })
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/* Raw code statement block */
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#define BPF_RAW_INSN(CODE, DST, SRC, OFF, IMM) \
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@ -211,6 +211,42 @@ static void bpf_fill_rand_ld_dw(struct bpf_test *self)
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BPF_MOV64_IMM(BPF_REG_5, 0), \
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BPF_EMIT_CALL(BPF_FUNC_sk_lookup_tcp)
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/* BPF_DIRECT_PKT_R2 contains 7 instructions, it initializes default return
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* value into 0 and does necessary preparation for direct packet access
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* through r2. The allowed access range is 8 bytes.
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*/
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#define BPF_DIRECT_PKT_R2 \
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BPF_MOV64_IMM(BPF_REG_0, 0), \
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BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, \
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offsetof(struct __sk_buff, data)), \
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BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, \
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offsetof(struct __sk_buff, data_end)), \
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BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), \
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), \
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BPF_JMP_REG(BPF_JLE, BPF_REG_4, BPF_REG_3, 1), \
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BPF_EXIT_INSN()
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/* BPF_RAND_UEXT_R7 contains 4 instructions, it initializes R7 into a random
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* positive u32, and zero-extend it into 64-bit.
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*/
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#define BPF_RAND_UEXT_R7 \
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, \
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BPF_FUNC_get_prandom_u32), \
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BPF_MOV64_REG(BPF_REG_7, BPF_REG_0), \
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_7, 33), \
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BPF_ALU64_IMM(BPF_RSH, BPF_REG_7, 33)
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/* BPF_RAND_SEXT_R7 contains 5 instructions, it initializes R7 into a random
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* negative u32, and sign-extend it into 64-bit.
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*/
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#define BPF_RAND_SEXT_R7 \
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BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, \
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BPF_FUNC_get_prandom_u32), \
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BPF_MOV64_REG(BPF_REG_7, BPF_REG_0), \
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BPF_ALU64_IMM(BPF_OR, BPF_REG_7, 0x80000000), \
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BPF_ALU64_IMM(BPF_LSH, BPF_REG_7, 32), \
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BPF_ALU64_IMM(BPF_ARSH, BPF_REG_7, 32)
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static struct bpf_test tests[] = {
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{
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"add+sub+mul",
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@ -15447,18 +15483,7 @@ static struct bpf_test tests[] = {
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{
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"jset: functional",
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.insns = {
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/* r0 = 0 */
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BPF_MOV64_IMM(BPF_REG_0, 0),
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/* prep for direct packet access via r2 */
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BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
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offsetof(struct __sk_buff, data)),
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BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
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offsetof(struct __sk_buff, data_end)),
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BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
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BPF_JMP_REG(BPF_JLE, BPF_REG_4, BPF_REG_3, 1),
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BPF_EXIT_INSN(),
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BPF_DIRECT_PKT_R2,
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BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
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/* reg, bit 63 or bit 0 set, taken */
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@ -15514,18 +15539,7 @@ static struct bpf_test tests[] = {
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{
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"jset: sign-extend",
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.insns = {
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/* r0 = 0 */
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BPF_MOV64_IMM(BPF_REG_0, 0),
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/* prep for direct packet access via r2 */
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BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
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offsetof(struct __sk_buff, data)),
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BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
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offsetof(struct __sk_buff, data_end)),
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BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),
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BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),
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BPF_JMP_REG(BPF_JLE, BPF_REG_4, BPF_REG_3, 1),
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BPF_EXIT_INSN(),
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BPF_DIRECT_PKT_R2,
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BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
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BPF_JMP_IMM(BPF_JSET, BPF_REG_7, 0x80000000, 1),
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@ -15795,6 +15809,730 @@ static struct bpf_test tests[] = {
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.result = ACCEPT,
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.retval = 2,
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},
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{
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"jset32: BPF_K",
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.insns = {
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BPF_DIRECT_PKT_R2,
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BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
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/* reg, high bits shouldn't be tested */
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BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, -2, 1),
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BPF_JMP_IMM(BPF_JA, 0, 0, 1),
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BPF_EXIT_INSN(),
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BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, 1, 1),
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BPF_EXIT_INSN(),
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BPF_MOV64_IMM(BPF_REG_0, 2),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.result = ACCEPT,
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.runs = 3,
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.retvals = {
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{ .retval = 0,
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.data64 = { 1ULL << 63, }
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},
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{ .retval = 2,
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.data64 = { 1, }
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},
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{ .retval = 2,
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.data64 = { 1ULL << 63 | 1, }
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},
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},
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},
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{
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"jset32: BPF_X",
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.insns = {
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BPF_DIRECT_PKT_R2,
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BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
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BPF_LD_IMM64(BPF_REG_8, 0x8000000000000000),
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BPF_JMP32_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
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BPF_JMP_IMM(BPF_JA, 0, 0, 1),
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BPF_EXIT_INSN(),
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BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
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BPF_JMP32_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
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BPF_EXIT_INSN(),
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BPF_MOV64_IMM(BPF_REG_0, 2),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.result = ACCEPT,
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.runs = 3,
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.retvals = {
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{ .retval = 0,
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.data64 = { 1ULL << 63, }
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},
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{ .retval = 2,
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.data64 = { 1, }
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},
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{ .retval = 2,
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.data64 = { 1ULL << 63 | 1, }
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},
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},
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},
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{
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"jset32: min/max deduction",
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.insns = {
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BPF_RAND_UEXT_R7,
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, 0x10, 1),
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BPF_EXIT_INSN(),
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BPF_JMP32_IMM(BPF_JGE, BPF_REG_7, 0x10, 1),
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BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 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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"jeq32: BPF_K",
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.insns = {
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BPF_DIRECT_PKT_R2,
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BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
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BPF_JMP32_IMM(BPF_JEQ, BPF_REG_7, -1, 1),
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BPF_EXIT_INSN(),
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BPF_MOV64_IMM(BPF_REG_0, 2),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.result = ACCEPT,
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.runs = 2,
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.retvals = {
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{ .retval = 0,
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.data64 = { -2, }
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},
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{ .retval = 2,
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.data64 = { -1, }
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},
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},
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},
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{
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"jeq32: BPF_X",
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.insns = {
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BPF_DIRECT_PKT_R2,
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BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
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BPF_LD_IMM64(BPF_REG_8, 0x7000000000000001),
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BPF_JMP32_REG(BPF_JEQ, BPF_REG_7, BPF_REG_8, 1),
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BPF_EXIT_INSN(),
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BPF_MOV64_IMM(BPF_REG_0, 2),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.result = ACCEPT,
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.runs = 3,
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.retvals = {
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{ .retval = 0,
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.data64 = { 2, }
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},
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{ .retval = 2,
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.data64 = { 1, }
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},
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{ .retval = 2,
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.data64 = { 1ULL << 63 | 1, }
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},
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},
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},
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{
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"jeq32: min/max deduction",
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.insns = {
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BPF_RAND_UEXT_R7,
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_JMP32_IMM(BPF_JEQ, BPF_REG_7, 0x10, 1),
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BPF_EXIT_INSN(),
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BPF_JMP32_IMM(BPF_JSGE, BPF_REG_7, 0xf, 1),
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BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 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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"jne32: BPF_K",
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.insns = {
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BPF_DIRECT_PKT_R2,
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BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
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BPF_JMP32_IMM(BPF_JNE, BPF_REG_7, -1, 1),
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BPF_EXIT_INSN(),
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BPF_MOV64_IMM(BPF_REG_0, 2),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.result = ACCEPT,
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.runs = 2,
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.retvals = {
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{ .retval = 2,
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.data64 = { 1, }
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},
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{ .retval = 0,
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.data64 = { -1, }
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},
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},
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},
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{
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"jne32: BPF_X",
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.insns = {
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BPF_DIRECT_PKT_R2,
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BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
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BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
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BPF_JMP32_REG(BPF_JNE, BPF_REG_7, BPF_REG_8, 1),
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BPF_EXIT_INSN(),
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BPF_MOV64_IMM(BPF_REG_0, 2),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.result = ACCEPT,
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.runs = 3,
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.retvals = {
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{ .retval = 0,
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.data64 = { 1, }
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},
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{ .retval = 2,
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.data64 = { 2, }
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},
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{ .retval = 2,
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.data64 = { 1ULL << 63 | 2, }
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},
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},
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},
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{
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"jne32: min/max deduction",
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.insns = {
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BPF_RAND_UEXT_R7,
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BPF_MOV64_IMM(BPF_REG_0, 0),
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BPF_JMP32_IMM(BPF_JNE, BPF_REG_7, 0x10, 1),
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BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x10, 1),
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BPF_EXIT_INSN(),
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BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 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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"jge32: BPF_K",
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.insns = {
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BPF_DIRECT_PKT_R2,
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BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
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BPF_JMP32_IMM(BPF_JGE, BPF_REG_7, UINT_MAX - 1, 1),
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BPF_EXIT_INSN(),
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BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.result = ACCEPT,
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.runs = 3,
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.retvals = {
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{ .retval = 2,
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.data64 = { UINT_MAX, }
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},
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{ .retval = 2,
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.data64 = { UINT_MAX - 1, }
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},
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{ .retval = 0,
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.data64 = { 0, }
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},
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},
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},
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{
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"jge32: BPF_X",
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.insns = {
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BPF_DIRECT_PKT_R2,
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BPF_LD_IMM64(BPF_REG_8, UINT_MAX | 1ULL << 32),
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BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
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BPF_JMP32_REG(BPF_JGE, BPF_REG_7, BPF_REG_8, 1),
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BPF_EXIT_INSN(),
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BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.result = ACCEPT,
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.runs = 3,
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.retvals = {
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{ .retval = 2,
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.data64 = { UINT_MAX, }
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},
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{ .retval = 0,
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.data64 = { INT_MAX, }
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},
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{ .retval = 0,
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.data64 = { (UINT_MAX - 1) | 2ULL << 32, }
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},
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},
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},
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{
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"jge32: min/max deduction",
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.insns = {
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BPF_RAND_UEXT_R7,
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BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
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BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
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BPF_JMP32_REG(BPF_JGE, BPF_REG_7, BPF_REG_8, 1),
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BPF_EXIT_INSN(),
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BPF_JMP32_IMM(BPF_JGE, BPF_REG_7, 0x7ffffff0, 1),
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BPF_LDX_MEM(BPF_DW, BPF_REG_0, 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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.retval = 2,
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},
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{
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"jgt32: BPF_K",
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.insns = {
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BPF_DIRECT_PKT_R2,
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BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
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BPF_JMP32_IMM(BPF_JGT, BPF_REG_7, UINT_MAX - 1, 1),
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BPF_EXIT_INSN(),
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BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
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BPF_EXIT_INSN(),
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},
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.prog_type = BPF_PROG_TYPE_SCHED_CLS,
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.result = ACCEPT,
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.runs = 3,
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.retvals = {
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{ .retval = 2,
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.data64 = { UINT_MAX, }
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},
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{ .retval = 0,
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.data64 = { UINT_MAX - 1, }
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},
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{ .retval = 0,
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.data64 = { 0, }
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},
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},
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},
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{
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"jgt32: BPF_X",
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.insns = {
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BPF_DIRECT_PKT_R2,
|
||||
BPF_LD_IMM64(BPF_REG_8, (UINT_MAX - 1) | 1ULL << 32),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_REG(BPF_JGT, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 2,
|
||||
.data64 = { UINT_MAX, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { UINT_MAX - 1, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { (UINT_MAX - 1) | 2ULL << 32, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jgt32: min/max deduction",
|
||||
.insns = {
|
||||
BPF_RAND_UEXT_R7,
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
|
||||
BPF_JMP32_REG(BPF_JGT, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_JMP_IMM(BPF_JGT, BPF_REG_7, 0x7ffffff0, 1),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.result = ACCEPT,
|
||||
.retval = 2,
|
||||
},
|
||||
{
|
||||
"jle32: BPF_K",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_IMM(BPF_JLE, BPF_REG_7, INT_MAX, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 2,
|
||||
.data64 = { INT_MAX - 1, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { UINT_MAX, }
|
||||
},
|
||||
{ .retval = 2,
|
||||
.data64 = { INT_MAX, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jle32: BPF_X",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LD_IMM64(BPF_REG_8, (INT_MAX - 1) | 2ULL << 32),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_REG(BPF_JLE, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 0,
|
||||
.data64 = { INT_MAX | 1ULL << 32, }
|
||||
},
|
||||
{ .retval = 2,
|
||||
.data64 = { INT_MAX - 2, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { UINT_MAX, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jle32: min/max deduction",
|
||||
.insns = {
|
||||
BPF_RAND_UEXT_R7,
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
|
||||
BPF_JMP32_REG(BPF_JLE, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_JMP32_IMM(BPF_JLE, BPF_REG_7, 0x7ffffff0, 1),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.result = ACCEPT,
|
||||
.retval = 2,
|
||||
},
|
||||
{
|
||||
"jlt32: BPF_K",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_IMM(BPF_JLT, BPF_REG_7, INT_MAX, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 0,
|
||||
.data64 = { INT_MAX, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { UINT_MAX, }
|
||||
},
|
||||
{ .retval = 2,
|
||||
.data64 = { INT_MAX - 1, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jlt32: BPF_X",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LD_IMM64(BPF_REG_8, INT_MAX | 2ULL << 32),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_REG(BPF_JLT, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 0,
|
||||
.data64 = { INT_MAX | 1ULL << 32, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { UINT_MAX, }
|
||||
},
|
||||
{ .retval = 2,
|
||||
.data64 = { (INT_MAX - 1) | 3ULL << 32, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jlt32: min/max deduction",
|
||||
.insns = {
|
||||
BPF_RAND_UEXT_R7,
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
|
||||
BPF_JMP32_REG(BPF_JLT, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_JMP_IMM(BPF_JSLT, BPF_REG_7, 0x7ffffff0, 1),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.result = ACCEPT,
|
||||
.retval = 2,
|
||||
},
|
||||
{
|
||||
"jsge32: BPF_K",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_IMM(BPF_JSGE, BPF_REG_7, -1, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 2,
|
||||
.data64 = { 0, }
|
||||
},
|
||||
{ .retval = 2,
|
||||
.data64 = { -1, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { -2, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jsge32: BPF_X",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LD_IMM64(BPF_REG_8, (__u32)-1 | 2ULL << 32),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_REG(BPF_JSGE, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 2,
|
||||
.data64 = { -1, }
|
||||
},
|
||||
{ .retval = 2,
|
||||
.data64 = { 0x7fffffff | 1ULL << 32, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { -2, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jsge32: min/max deduction",
|
||||
.insns = {
|
||||
BPF_RAND_UEXT_R7,
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
|
||||
BPF_JMP32_REG(BPF_JSGE, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_JMP_IMM(BPF_JSGE, BPF_REG_7, 0x7ffffff0, 1),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.result = ACCEPT,
|
||||
.retval = 2,
|
||||
},
|
||||
{
|
||||
"jsgt32: BPF_K",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_IMM(BPF_JSGT, BPF_REG_7, -1, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 0,
|
||||
.data64 = { (__u32)-2, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { -1, }
|
||||
},
|
||||
{ .retval = 2,
|
||||
.data64 = { 1, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jsgt32: BPF_X",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LD_IMM64(BPF_REG_8, 0x7ffffffe | 1ULL << 32),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_REG(BPF_JSGT, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 0,
|
||||
.data64 = { 0x7ffffffe, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { 0x1ffffffffULL, }
|
||||
},
|
||||
{ .retval = 2,
|
||||
.data64 = { 0x7fffffff, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jsgt32: min/max deduction",
|
||||
.insns = {
|
||||
BPF_RAND_SEXT_R7,
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_LD_IMM64(BPF_REG_8, (__u32)(-2) | 1ULL << 32),
|
||||
BPF_JMP32_REG(BPF_JSGT, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, -2, 1),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.result = ACCEPT,
|
||||
.retval = 2,
|
||||
},
|
||||
{
|
||||
"jsle32: BPF_K",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_IMM(BPF_JSLE, BPF_REG_7, -1, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 2,
|
||||
.data64 = { (__u32)-2, }
|
||||
},
|
||||
{ .retval = 2,
|
||||
.data64 = { -1, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { 1, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jsle32: BPF_X",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LD_IMM64(BPF_REG_8, 0x7ffffffe | 1ULL << 32),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_REG(BPF_JSLE, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 2,
|
||||
.data64 = { 0x7ffffffe, }
|
||||
},
|
||||
{ .retval = 2,
|
||||
.data64 = { (__u32)-1, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { 0x7fffffff | 2ULL << 32, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jsle32: min/max deduction",
|
||||
.insns = {
|
||||
BPF_RAND_UEXT_R7,
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
|
||||
BPF_JMP32_REG(BPF_JSLE, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_JMP_IMM(BPF_JSLE, BPF_REG_7, 0x7ffffff0, 1),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.result = ACCEPT,
|
||||
.retval = 2,
|
||||
},
|
||||
{
|
||||
"jslt32: BPF_K",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_IMM(BPF_JSLT, BPF_REG_7, -1, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 2,
|
||||
.data64 = { (__u32)-2, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { -1, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { 1, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jslt32: BPF_X",
|
||||
.insns = {
|
||||
BPF_DIRECT_PKT_R2,
|
||||
BPF_LD_IMM64(BPF_REG_8, 0x7fffffff | 1ULL << 32),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
|
||||
BPF_JMP32_REG(BPF_JSLT, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
||||
.result = ACCEPT,
|
||||
.runs = 3,
|
||||
.retvals = {
|
||||
{ .retval = 2,
|
||||
.data64 = { 0x7ffffffe, }
|
||||
},
|
||||
{ .retval = 2,
|
||||
.data64 = { 0xffffffff, }
|
||||
},
|
||||
{ .retval = 0,
|
||||
.data64 = { 0x7fffffff | 2ULL << 32, }
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
"jslt32: min/max deduction",
|
||||
.insns = {
|
||||
BPF_RAND_SEXT_R7,
|
||||
BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
|
||||
BPF_LD_IMM64(BPF_REG_8, (__u32)(-1) | 1ULL << 32),
|
||||
BPF_JMP32_REG(BPF_JSLT, BPF_REG_7, BPF_REG_8, 1),
|
||||
BPF_EXIT_INSN(),
|
||||
BPF_JMP32_IMM(BPF_JSLT, BPF_REG_7, -1, 1),
|
||||
BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
|
||||
BPF_EXIT_INSN(),
|
||||
},
|
||||
.result = ACCEPT,
|
||||
.retval = 2,
|
||||
},
|
||||
};
|
||||
|
||||
static int probe_filter_length(const struct bpf_insn *fp)
|
||||
|
||||
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Reference in New Issue
Block a user