tools/testing/selftests/bpf/verifier/jmp32.c


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{
	"jset32: BPF_K",
	.insns = {
	BPF_DIRECT_PKT_R2,
	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
	/* reg, high bits shouldn't be tested */
	BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, -2, 1),
	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
	BPF_EXIT_INSN(),

	BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, 1, 1),
	BPF_EXIT_INSN(),
	BPF_MOV64_IMM(BPF_REG_0, 2),
	BPF_EXIT_INSN(),
	},
	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	.result = ACCEPT,
	.runs = 3,
	.retvals = {
		{ .retval = 0,
		  .data64 = { 1ULL << 63, }
		},
		{ .retval = 2,
		  .data64 = { 1, }
		},
		{ .retval = 2,
		  .data64 = { 1ULL << 63 | 1, }
		},
	},
	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
	"jset32: BPF_X",
	.insns = {
	BPF_DIRECT_PKT_R2,
	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
	BPF_LD_IMM64(BPF_REG_8, 0x8000000000000000),
	BPF_JMP32_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
	BPF_EXIT_INSN(),

	BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
	BPF_JMP32_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
	BPF_EXIT_INSN(),
	BPF_MOV64_IMM(BPF_REG_0, 2),
	BPF_EXIT_INSN(),
	},
	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	.result = ACCEPT,
	.runs = 3,
	.retvals = {
		{ .retval = 0,
		  .data64 = { 1ULL << 63, }
		},
		{ .retval = 2,
		  .data64 = { 1, }
		},
		{ .retval = 2,
		  .data64 = { 1ULL << 63 | 1, }
		},
	},
	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
	"jset32: ignores upper bits",
	.insns = {
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_LD_IMM64(BPF_REG_7, 0x8000000000000000),
	BPF_LD_IMM64(BPF_REG_8, 0x8000000000000000),
	BPF_JMP_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
	BPF_EXIT_INSN(),
	BPF_JMP32_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
	BPF_MOV64_IMM(BPF_REG_0, 2),
	BPF_EXIT_INSN(),
	},
	.result = ACCEPT,
	.retval = 2,
},
{
	"jset32: min/max deduction",
	.insns = {
	BPF_RAND_UEXT_R7,
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, 0x10, 1),
	BPF_EXIT_INSN(),
	BPF_JMP32_IMM(BPF_JGE, BPF_REG_7, 0x10, 1),
	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
	BPF_EXIT_INSN(),
	},
	.errstr_unpriv = "R9 !read_ok",
	.result_unpriv = REJECT,
	.result = ACCEPT,
},
{
	"jeq32: BPF_K",
	.insns = {
	BPF_DIRECT_PKT_R2,
	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
	BPF_JMP32_IMM(BPF_JEQ, BPF_REG_7, -1, 1),
	BPF_EXIT_INSN(),
	BPF_MOV64_IMM(BPF_REG_0, 2),
	BPF_EXIT_INSN(),
	},
	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	.result = ACCEPT,
	.runs = 2,
	.retvals = {
		{ .retval = 0,
		  .data64 = { -2, }
		},
		{ .retval = 2,
		  .data64 = { -1, }
		},
	},
	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
	"jeq32: BPF_X",
	.insns = {
	BPF_DIRECT_PKT_R2,
	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
	BPF_LD_IMM64(BPF_REG_8, 0x7000000000000001),
	BPF_JMP32_REG(BPF_JEQ, BPF_REG_7, BPF_REG_8, 1),
	BPF_EXIT_INSN(),
	BPF_MOV64_IMM(BPF_REG_0, 2),
	BPF_EXIT_INSN(),
	},
	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	.result = ACCEPT,
	.runs = 3,
	.retvals = {
		{ .retval = 0,
		  .data64 = { 2, }
		},
		{ .retval = 2,
		  .data64 = { 1, }
		},
		{ .retval = 2,
		  .data64 = { 1ULL << 63 | 1, }
		},
	},
	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
	"jeq32: min/max deduction",
	.insns = {
	BPF_RAND_UEXT_R7,
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_JMP32_IMM(BPF_JEQ, BPF_REG_7, 0x10, 1),
	BPF_EXIT_INSN(),
	BPF_JMP32_IMM(BPF_JSGE, BPF_REG_7, 0xf, 1),
	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
	BPF_EXIT_INSN(),
	},
	.errstr_unpriv = "R9 !read_ok",
	.result_unpriv = REJECT,
	.result = ACCEPT,
},
{
	"jne32: BPF_K",
	.insns = {
	BPF_DIRECT_PKT_R2,
	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
	BPF_JMP32_IMM(BPF_JNE, BPF_REG_7, -1, 1),
	BPF_EXIT_INSN(),
	BPF_MOV64_IMM(BPF_REG_0, 2),
	BPF_EXIT_INSN(),
	},
	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	.result = ACCEPT,
	.runs = 2,
	.retvals = {
		{ .retval = 2,
		  .data64 = { 1, }
		},
		{ .retval = 0,
		  .data64 = { -1, }
		},
	},
	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
	"jne32: BPF_X",
	.insns = {
	BPF_DIRECT_PKT_R2,
	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
	BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
	BPF_JMP32_REG(BPF_JNE, BPF_REG_7, BPF_REG_8, 1),
	BPF_EXIT_INSN(),
	BPF_MOV64_IMM(BPF_REG_0, 2),
	BPF_EXIT_INSN(),
	},
	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
	.result = ACCEPT,
	.runs = 3,
	.retvals = {
		{ .retval = 0,
		  .data64 = { 1, }
		},
		{ .retval = 2,
		  .data64 = { 2, }
		},
		{ .retval = 2,
		  .data64 = { 1ULL << 63 | 2, }
		},
	},
	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
	"jne32: min/max deduction",
	.insns = {
	BPF_RAND_UEXT_R7,
	BPF_MOV64_IMM(BPF_REG_0, 0),
	BPF_JMP32_IMM(BPF_JNE, BPF_REG_7, 0x10, 1)