Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 169 insertions, 0 deletions

diff --git a/tools/testing/selftests/bpf/verifier/jset.c b/tools/testing/selftests/bpf/verifier/jset.c
new file mode 100644
index 000000000..11fc68da7
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/jset.c
@@ -0,0 +1,169 @@
+{
+	"jset: functional",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+
+	/* reg, bit 63 or bit 0 set, taken */
+	BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
+	BPF_JMP_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+
+	/* reg, bit 62, not taken */
+	BPF_LD_IMM64(BPF_REG_8, 0x4000000000000000),
+	BPF_JMP_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_EXIT_INSN(),
+
+	/* imm, any bit set, taken */
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_7, -1, 1),
+	BPF_EXIT_INSN(),
+
+	/* imm, bit 31 set, taken */
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_7, 0x80000000, 1),
+	BPF_EXIT_INSN(),
+
+	/* all good - return r0 == 2 */
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 7,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { (1ULL << 63) | (1U << 31) | (1U << 0), }
+		},
+		{ .retval = 2,
+		  .data64 = { (1ULL << 63) | (1U << 31), }
+		},
+		{ .retval = 2,
+		  .data64 = { (1ULL << 31) | (1U << 0), }
+		},
+		{ .retval = 2,
+		  .data64 = { (__u32)-1, }
+		},
+		{ .retval = 2,
+		  .data64 = { ~0x4000000000000000ULL, }
+		},
+		{ .retval = 0,
+		  .data64 = { 0, }
+		},
+		{ .retval = 0,
+		  .data64 = { ~0ULL, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jset: sign-extend",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_7, 0x80000000, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 2,
+	.data = { 1, 0, 0, 0, 0, 0, 0, 1, },
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jset: known const compare",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "R9 !read_ok",
+	.result_unpriv = REJECT,
+	.retval = 1,
+	.result = ACCEPT,
+},
+{
+	"jset: known const compare bad",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "!read_ok",
+	.result_unpriv = REJECT,
+	.errstr = "!read_ok",
+	.result = REJECT,
+},
+{
+	"jset: unknown const compare taken",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "!read_ok",
+	.result_unpriv = REJECT,
+	.errstr = "!read_ok",
+	.result = REJECT,
+},
+{
+	"jset: unknown const compare not taken",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "!read_ok",
+	.result_unpriv = REJECT,
+	.errstr = "!read_ok",
+	.result = REJECT,
+},
+{
+	"jset: half-known const compare",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_ALU64_IMM(BPF_OR, BPF_REG_0, 2),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 3, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "R9 !read_ok",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+},
+{
+	"jset: range",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_1, 0xff),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_1, 0xf0, 3),
+	BPF_JMP_IMM(BPF_JLT, BPF_REG_1, 0x10, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_1, 0x10, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0x10, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "R9 !read_ok",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+},