tools/testing/selftests/bpf/verifier/jump.c

{
	"jump test 1",
	.insns = {
	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5),
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_EXIT_INSN(),
	},
	.errstr_unpriv = "R1 pointer comparison",
	.result_unpriv = REJECT,
	.result = ACCEPT,
},
{
	"jump test 2",
	.insns = {
	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 14),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 11),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 8),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 5),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_EXIT_INSN(),
	},
	.errstr_unpriv = "R1 pointer comparison",
	.result_unpriv = REJECT,
	.result = ACCEPT,
},
{
	"jump test 3",
	.insns = {
	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
	BPF_JMP_IMM(BPF_JA, 0, 0, 19),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
	BPF_JMP_IMM(BPF_JA, 0, 0, 15),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32),
	BPF_JMP_IMM(BPF_JA, 0, 0, 11),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40),
	BPF_JMP_IMM(BPF_JA, 0, 0, 7),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48),
	BPF_JMP_IMM(BPF_JA, 0, 0, 3),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0),
	BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56),
	BPF_LD_MAP_FD(BPF_REG_1, 0),
	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_delete_elem),
	BPF_EXIT_INSN(),
	},
	.fixup_map_hash_8b = { 24 },
	.errstr_unpriv = "R1 pointer comparison",
	.result_unpriv = REJECT,
	.result = ACCEPT,
	.retval = -ENOENT,
},
{
	"jump test 4",
	.insns = {
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_EXIT_INSN(),
	},
	.errstr_unpriv = "R1 pointer comparison",
	.result_unpriv = REJECT,
	.result = ACCEPT,
},
{
	"jump test 5",
	.insns = {
	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
	BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_EXIT_INSN(),
	},
	.errstr_unpriv = "R1 pointer comparison",
	.result_unpriv = REJECT,
	.result = ACCEPT,
},
{
	"jump test 6",
	.insns = {
	BPF_MOV64_IMM(BPF_REG_0, 1),
	BPF_MOV64_IMM(BPF_REG_1, 2),
	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
	BPF_MOV64_IMM(BPF_REG_0, 2),
	BPF_EXIT_INSN(),
	BPF_JMP_REG(BPF_JNE, BPF_REG_0, BPF_REG_1, 16),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
	BPF_JMP_IMM(BPF_JA, 0, 0, -20),
	},
	.result = ACCEPT,
	.retval = 2,
},
{
	"jump test 7",
	.insns = {
	BPF_MOV64_IMM(BPF_REG_0, 1),
	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
	BPF_MOV64_IMM(BPF_REG_0, 3),
	BPF_EXIT_INSN(),
	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_JMP_IMM(BPF_JA, 0, 0, -20),
	},
	.result = ACCEPT,
	.retval = 3,
},
{
	"jump test 8",
	.insns = {
	BPF_MOV64_IMM(BPF_REG_0, 1),
	BPF_MOV64_IMM(BPF_REG_1, 2),
	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
	BPF_MOV64_IMM(BPF_REG_0, 3),
	BPF_EXIT_INSN(),
	BPF_JMP_REG(BPF_JNE, BPF_REG_0, BPF_REG_1, 16),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_JMP_IMM(BPF_JA, 0, 0, -20),
	},
	.result = ACCEPT,
	.retval = 3,
},
{
	"jump/call test 9",
	.insns = {
	BPF_MOV64_IMM(BPF_REG_0, 1),
	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
	BPF_MOV64_IMM(BPF_REG_0, 3),
	BPF_EXIT_INSN(),
	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -20),
	BPF_EXIT_INSN(),
	},
	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	.result = REJECT,
	.errstr = "jump out of range from insn 1 to 4",
},
{
	"jump/call test 10",
	.insns = {
	BPF_MOV64_IMM(BPF_REG_0, 1),
	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
	BPF_MOV64_IMM(BPF_REG_0, 3),
	BPF_EXIT_INSN(),
	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -20),
	BPF_EXIT_INSN(),
	},
	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	.result = REJECT,
	.errstr = "last insn is not an exit or jmp",
},
{
	"jump/call test 11",
	.insns = {
	BPF_MOV64_IMM(BPF_REG_0, 1),
	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
	BPF_MOV64_IMM(BPF_REG_0, 3),
	BPF_EXIT_INSN(),
	BPF_MOV64_IMM(BPF_REG_0, 3),
	BPF_EXIT_INSN(),
	BPF_MOV64_IMM(BPF_REG_0, 1),
	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 26),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_MOV64_IMM(BPF_REG_0, 42),
	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -31),
	BPF_EXIT_INSN(),
	},
	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	.result = ACCEPT,
	.retval = 3,
},