From: Jakub Sitnicki <jakub@cloudflare.com>
To: netdev@vger.kernel.org, bpf@vger.kernel.org
Cc: dccp@vger.kernel.org, kernel-team@cloudflare.com,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Gerrit Renker <gerrit@erg.abdn.ac.uk>,
Jakub Kicinski <kuba@kernel.org>
Subject: [PATCH bpf-next 15/17] selftests/bpf: Add verifier tests for bpf_sk_lookup context access
Date: Wed, 6 May 2020 14:55:11 +0200 [thread overview]
Message-ID: <20200506125514.1020829-16-jakub@cloudflare.com> (raw)
In-Reply-To: <20200506125514.1020829-1-jakub@cloudflare.com>
Exercise verifier access checks for bpf_sk_lookup context fields.
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.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
next prev parent reply other threads:[~2020-05-06 12:55 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-06 12:54 [PATCH bpf-next 00/17] Run a BPF program on socket lookup Jakub Sitnicki
2020-05-06 12:54 ` [PATCH bpf-next 01/17] flow_dissector: Extract attach/detach/query helpers Jakub Sitnicki
2020-05-06 12:54 ` [PATCH bpf-next 02/17] bpf: Introduce SK_LOOKUP program type with a dedicated attach point Jakub Sitnicki
2020-05-06 13:16 ` Lorenz Bauer
2020-05-06 13:53 ` Jakub Sitnicki
2020-05-07 20:55 ` Martin KaFai Lau
2020-05-08 8:54 ` Jakub Sitnicki
2020-05-08 7:06 ` Martin KaFai Lau
2020-05-08 10:45 ` Jakub Sitnicki
2020-05-08 18:39 ` Martin KaFai Lau
2020-05-11 9:08 ` Jakub Sitnicki
2020-05-11 18:59 ` Martin KaFai Lau
2020-05-11 19:26 ` Jakub Sitnicki
2020-05-11 20:54 ` Martin KaFai Lau
2020-05-12 14:16 ` Jakub Sitnicki
2020-05-06 12:54 ` [PATCH bpf-next 03/17] inet: Store layer 4 protocol in inet_hashinfo Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 04/17] inet: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 05/17] inet: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 06/17] inet6: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 07/17] inet6: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 08/17] udp: Store layer 4 protocol in udp_table Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 09/17] udp: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 10/17] udp: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 11/17] udp6: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 12/17] udp6: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 13/17] bpf: Sync linux/bpf.h to tools/ Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 14/17] libbpf: Add support for SK_LOOKUP program type Jakub Sitnicki
2020-05-08 17:41 ` Andrii Nakryiko
2020-05-08 17:52 ` Yonghong Song
2020-05-08 17:59 ` Andrii Nakryiko
2020-05-11 8:12 ` Jakub Sitnicki
2020-05-06 12:55 ` Jakub Sitnicki [this message]
2020-05-06 12:55 ` [PATCH bpf-next 16/17] selftests/bpf: Rename test_sk_lookup_kern.c to test_ref_track_kern.c Jakub Sitnicki
2020-05-06 12:55 ` [PATCH bpf-next 17/17] selftests/bpf: Tests for BPF_SK_LOOKUP attach point Jakub Sitnicki
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