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Message-Id: <20200506125514.1020829-16-jakub@cloudflare.com>
Date: Wed, 6 May 2020 14:55:11 +0200
From: Jakub Sitnicki <jakub@...udflare.com>
To: netdev@...r.kernel.org, bpf@...r.kernel.org
Cc: dccp@...r.kernel.org, kernel-team@...udflare.com,
Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Gerrit Renker <gerrit@....abdn.ac.uk>,
Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH bpf-next 15/17] selftests/bpf: Add verifier tests for bpf_sk_lookup context access
Exercise verifier access checks for bpf_sk_lookup context fields.
Signed-off-by: Jakub Sitnicki <jakub@...udflare.com>
---
.../selftests/bpf/verifier/ctx_sk_lookup.c | 696 ++++++++++++++++++
1 file changed, 696 insertions(+)
create mode 100644 tools/testing/selftests/bpf/verifier/ctx_sk_lookup.c
diff --git a/tools/testing/selftests/bpf/verifier/ctx_sk_lookup.c b/tools/testing/selftests/bpf/verifier/ctx_sk_lookup.c
new file mode 100644
index 000000000000..167cc3da6502
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/ctx_sk_lookup.c
@@ -0,0 +1,696 @@
+{
+ "valid 1,2,4-byte read bpf_sk_lookup src_ip4",
+ .insns = {
+ /* 4-byte read */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_ip4)),
+ /* 2-byte read */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_ip4)),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_ip4) + 2),
+ /* 1-byte read */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_ip4)),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_ip4) + 3),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte read bpf_sk_lookup src_ip4",
+ .insns = {
+ /* 8-byte read */
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte write bpf_sk_lookup src_ip4",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x7f000001U),
+ /* 4-byte write */
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 4-byte write bpf_sk_lookup src_ip4",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x7f000001U),
+ /* 4-byte write */
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte write bpf_sk_lookup src_ip4",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x7f000001U),
+ /* 2-byte write */
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte write bpf_sk_lookup src_ip4",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x7f000001U),
+ /* 1-byte write */
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "valid 1,2,4-byte read bpf_sk_lookup dst_ip4",
+ .insns = {
+ /* 4-byte read */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip4)),
+ /* 2-byte read */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip4)),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip4) + 2),
+ /* 1-byte read */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip4)),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip4) + 3),
+ BPF_MOV64_IMM(BPF_REG_0, 0),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte read bpf_sk_lookup dst_ip4",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte write bpf_sk_lookup dst_ip4",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x7f000001U),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 4-byte write bpf_sk_lookup dst_ip4",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x7f000001U),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte write bpf_sk_lookup dst_ip4",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x7f000001U),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte write bpf_sk_lookup dst_ip4",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x7f000001U),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "valid 1,2,4-byte read bpf_sk_lookup src_ip6",
+ .insns = {
+ /* 4-byte read */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_ip6[0])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_ip6[3])),
+ /* 2-byte read */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_ip6[0])),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup,
+ src_ip6[3]) + 2),
+ /* 1-byte read */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_ip6[0])),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup,
+ src_ip6[3]) + 3),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte read bpf_sk_lookup src_ip6",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_ip6[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte write bpf_sk_lookup src_ip6",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x00000001U),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_ip6[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 4-byte write bpf_sk_lookup src_ip6",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x00000001U),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_ip6[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte write bpf_sk_lookup src_ip6",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x00000001U),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_ip6[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte write bpf_sk_lookup src_ip6",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x00000001U),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_ip6[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "valid 1,2,4-byte read bpf_sk_lookup dst_ip6",
+ .insns = {
+ /* 4-byte read */
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip6[0])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip6[3])),
+ /* 2-byte read */
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip6[0])),
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip6[3]) + 2),
+ /* 1-byte read */
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip6[0])),
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip6[3]) + 3),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte read bpf_sk_lookup dst_ip6",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_ip6[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte write bpf_sk_lookup dst_ip6",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x00000001U),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_ip6[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 4-byte write bpf_sk_lookup dst_ip6",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x00000001U),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_ip6[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte write bpf_sk_lookup dst_ip6",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x00000001U),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_ip6[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte write bpf_sk_lookup dst_ip6",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 0x00000001U),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_ip6[0])),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "valid 4-byte read bpf_sk_lookup src_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_port)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte read bpf_sk_lookup src_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte read bpf_sk_lookup src_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte read bpf_sk_lookup src_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, src_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte write bpf_sk_lookup src_port",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 4-byte write bpf_sk_lookup src_port",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte write bpf_sk_lookup src_port",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte write bpf_sk_lookup src_port",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, src_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "valid 4-byte read bpf_sk_lookup dst_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_port)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte read bpf_sk_lookup dst_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte read bpf_sk_lookup dst_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte read bpf_sk_lookup dst_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, dst_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte write bpf_sk_lookup dst_port",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 4-byte write bpf_sk_lookup dst_port",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte write bpf_sk_lookup dst_port",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte write bpf_sk_lookup dst_port",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, dst_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "valid 4-byte read bpf_sk_lookup family",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte read bpf_sk_lookup family",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte read bpf_sk_lookup family",
+ .insns = {
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte read bpf_sk_lookup family",
+ .insns = {
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, family)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte write bpf_sk_lookup family",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, family)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 4-byte write bpf_sk_lookup family",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, family)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte write bpf_sk_lookup family",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, family)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte write bpf_sk_lookup family",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, family)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "valid 4-byte read bpf_sk_lookup protocol",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte read bpf_sk_lookup protocol",
+ .insns = {
+ BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte read bpf_sk_lookup protocol",
+ .insns = {
+ BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte read bpf_sk_lookup protocol",
+ .insns = {
+ BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+ offsetof(struct bpf_sk_lookup, protocol)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 8-byte write bpf_sk_lookup protocol",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, protocol)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 4-byte write bpf_sk_lookup protocol",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, protocol)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 2-byte write bpf_sk_lookup protocol",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, protocol)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
+{
+ "invalid 1-byte write bpf_sk_lookup protocol",
+ .insns = {
+ BPF_MOV64_IMM(BPF_REG_0, 1234),
+ BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+ offsetof(struct bpf_sk_lookup, protocol)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ .prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+},
--
2.25.3
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