selftests: bpf: break up test_verifier

Break up the first 10 kLoC of test verifier test cases
out into smaller files.  Looks like git line counting
gets a little flismy above 16 bit integers, so we need
two commits to break up test_verifier.

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>

1 files changed, 220 insertions, 0 deletions

diff --git a/tools/testing/selftests/bpf/verifier/cgroup_storage.c b/tools/testing/selftests/bpf/verifier/cgroup_storage.c
new file mode 100644
index 000000000000..97057c0a1b8a
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/cgroup_storage.c
@@ -0,0 +1,220 @@
+{
+	"valid cgroup storage access",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_cgroup_storage = { 1 },
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"invalid cgroup storage access 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 1 },
+	.result = REJECT,
+	.errstr = "cannot pass map_type 1 into func bpf_get_local_storage",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"invalid cgroup storage access 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.errstr = "fd 1 is not pointing to valid bpf_map",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"invalid cgroup storage access 3",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 256),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_cgroup_storage = { 1 },
+	.result = REJECT,
+	.errstr = "invalid access to map value, value_size=64 off=256 size=4",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"invalid cgroup storage access 4",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, -2),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_cgroup_storage = { 1 },
+	.result = REJECT,
+	.errstr = "invalid access to map value, value_size=64 off=-2 size=4",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"invalid cgroup storage access 5",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 7),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_cgroup_storage = { 1 },
+	.result = REJECT,
+	.errstr = "get_local_storage() doesn't support non-zero flags",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"invalid cgroup storage access 6",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_1),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_cgroup_storage = { 1 },
+	.result = REJECT,
+	.errstr = "get_local_storage() doesn't support non-zero flags",
+	.errstr_unpriv = "R2 leaks addr into helper function",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"valid per-cpu cgroup storage access",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_percpu_cgroup_storage = { 1 },
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"invalid per-cpu cgroup storage access 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 1 },
+	.result = REJECT,
+	.errstr = "cannot pass map_type 1 into func bpf_get_local_storage",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"invalid per-cpu cgroup storage access 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.errstr = "fd 1 is not pointing to valid bpf_map",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"invalid per-cpu cgroup storage access 3",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 256),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_percpu_cgroup_storage = { 1 },
+	.result = REJECT,
+	.errstr = "invalid access to map value, value_size=64 off=256 size=4",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"invalid per-cpu cgroup storage access 4",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, -2),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_cgroup_storage = { 1 },
+	.result = REJECT,
+	.errstr = "invalid access to map value, value_size=64 off=-2 size=4",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"invalid per-cpu cgroup storage access 5",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 7),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_percpu_cgroup_storage = { 1 },
+	.result = REJECT,
+	.errstr = "get_local_storage() doesn't support non-zero flags",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"invalid per-cpu cgroup storage access 6",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_1),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_percpu_cgroup_storage = { 1 },
+	.result = REJECT,
+	.errstr = "get_local_storage() doesn't support non-zero flags",
+	.errstr_unpriv = "R2 leaks addr into helper function",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},