mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 00:48:50 +00:00
4872922623
Break up the rest of test_verifier tests into separate files. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Jiong Wang <jiong.wang@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
{
|
|
"xadd/w check unaligned stack",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_0, 1),
|
|
BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
|
|
BPF_STX_XADD(BPF_W, BPF_REG_10, BPF_REG_0, -7),
|
|
BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.result = REJECT,
|
|
.errstr = "misaligned stack access off",
|
|
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
|
},
|
|
{
|
|
"xadd/w check unaligned map",
|
|
.insns = {
|
|
BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
|
|
BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
|
|
BPF_LD_MAP_FD(BPF_REG_1, 0),
|
|
BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
|
|
BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
|
|
BPF_EXIT_INSN(),
|
|
BPF_MOV64_IMM(BPF_REG_1, 1),
|
|
BPF_STX_XADD(BPF_W, BPF_REG_0, BPF_REG_1, 3),
|
|
BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 3),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.fixup_map_hash_8b = { 3 },
|
|
.result = REJECT,
|
|
.errstr = "misaligned value access off",
|
|
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
|
},
|
|
{
|
|
"xadd/w check unaligned pkt",
|
|
.insns = {
|
|
BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, offsetof(struct xdp_md, data)),
|
|
BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
|
|
offsetof(struct xdp_md, data_end)),
|
|
BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
|
|
BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
|
|
BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 2),
|
|
BPF_MOV64_IMM(BPF_REG_0, 99),
|
|
BPF_JMP_IMM(BPF_JA, 0, 0, 6),
|
|
BPF_MOV64_IMM(BPF_REG_0, 1),
|
|
BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
|
|
BPF_ST_MEM(BPF_W, BPF_REG_2, 3, 0),
|
|
BPF_STX_XADD(BPF_W, BPF_REG_2, BPF_REG_0, 1),
|
|
BPF_STX_XADD(BPF_W, BPF_REG_2, BPF_REG_0, 2),
|
|
BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 1),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.result = REJECT,
|
|
.errstr = "BPF_XADD stores into R2 pkt is not allowed",
|
|
.prog_type = BPF_PROG_TYPE_XDP,
|
|
.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
|
|
},
|
|
{
|
|
"xadd/w check whether src/dst got mangled, 1",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_0, 1),
|
|
BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
|
|
BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
|
|
BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
|
|
BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
|
|
BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
|
|
BPF_JMP_REG(BPF_JNE, BPF_REG_6, BPF_REG_0, 3),
|
|
BPF_JMP_REG(BPF_JNE, BPF_REG_7, BPF_REG_10, 2),
|
|
BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
|
|
BPF_EXIT_INSN(),
|
|
BPF_MOV64_IMM(BPF_REG_0, 42),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.result = ACCEPT,
|
|
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
|
.retval = 3,
|
|
},
|
|
{
|
|
"xadd/w check whether src/dst got mangled, 2",
|
|
.insns = {
|
|
BPF_MOV64_IMM(BPF_REG_0, 1),
|
|
BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
|
|
BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
|
|
BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -8),
|
|
BPF_STX_XADD(BPF_W, BPF_REG_10, BPF_REG_0, -8),
|
|
BPF_STX_XADD(BPF_W, BPF_REG_10, BPF_REG_0, -8),
|
|
BPF_JMP_REG(BPF_JNE, BPF_REG_6, BPF_REG_0, 3),
|
|
BPF_JMP_REG(BPF_JNE, BPF_REG_7, BPF_REG_10, 2),
|
|
BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8),
|
|
BPF_EXIT_INSN(),
|
|
BPF_MOV64_IMM(BPF_REG_0, 42),
|
|
BPF_EXIT_INSN(),
|
|
},
|
|
.result = ACCEPT,
|
|
.prog_type = BPF_PROG_TYPE_SCHED_CLS,
|
|
.retval = 3,
|
|
},
|