From: John Fastabend <john.fastabend@gmail.com>
To: davem@davemloft.net, daniel@iogearbox.net, ast@fb.com
Cc: tgraf@suug.ch, netdev@vger.kernel.org, john.fastabend@gmail.com,
tom@herbertland.com
Subject: [net-next PATCH 09/10] bpf: selftests: add tests for new __sk_buff members
Date: Tue, 15 Aug 2017 22:33:56 -0700 [thread overview]
Message-ID: <20170816053355.15445.70088.stgit@john-Precision-Tower-5810> (raw)
In-Reply-To: <20170816052338.15445.83732.stgit@john-Precision-Tower-5810>
This adds tests to access new __sk_buff members from sk skb program
type.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
---
tools/testing/selftests/bpf/test_verifier.c | 152 +++++++++++++++++++++++++++
1 file changed, 152 insertions(+)
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
index 1b76712..c03542c 100644
--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -967,6 +967,158 @@ struct test_val {
.result = REJECT,
},
{
+ "invalid access __sk_buff family",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, family)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ },
+ {
+ "invalid access __sk_buff remote_ip4",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ },
+ {
+ "invalid access __sk_buff local_ip4",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ },
+ {
+ "invalid access __sk_buff remote_ip6",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip6)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ },
+ {
+ "invalid access __sk_buff local_ip6",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip6)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ },
+ {
+ "invalid access __sk_buff remote_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ },
+ {
+ "invalid access __sk_buff remote_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_port)),
+ BPF_EXIT_INSN(),
+ },
+ .errstr = "invalid bpf_context access",
+ .result = REJECT,
+ },
+ {
+ "valid access __sk_buff family",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, family)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ },
+ {
+ "valid access __sk_buff remote_ip4",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ },
+ {
+ "valid access __sk_buff local_ip4",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip4)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ },
+ {
+ "valid access __sk_buff remote_ip6",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip6[0])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip6[1])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip6[2])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_ip6[3])),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ },
+ {
+ "valid access __sk_buff local_ip6",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip6[0])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip6[1])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip6[2])),
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_ip6[3])),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ },
+ {
+ "valid access __sk_buff remote_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, remote_port)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ },
+ {
+ "valid access __sk_buff remote_port",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct __sk_buff, local_port)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_SKB,
+ },
+ {
"check skb->mark is not writeable by sockets",
.insns = {
BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
next prev parent reply other threads:[~2017-08-16 5:34 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-16 5:30 [net-next PATCH 00/10] BPF: sockmap and sk redirect support John Fastabend
2017-08-16 5:30 ` [net-next PATCH 01/10] net: early init support for strparser John Fastabend
2017-08-16 5:31 ` [net-next PATCH 02/10] net: add sendmsg_locked and sendpage_locked to af_inet6 John Fastabend
2017-08-16 5:31 ` [net-next PATCH 03/10] net: fixes for skb_send_sock John Fastabend
2017-08-16 5:31 ` [net-next PATCH 04/10] bpf: introduce new program type for skbs on sockets John Fastabend
2017-08-16 5:32 ` [net-next PATCH 05/10] bpf: export bpf_prog_inc_not_zero John Fastabend
2017-08-16 5:32 ` [net-next PATCH 06/10] bpf: sockmap with sk redirect support John Fastabend
2017-08-17 5:40 ` Alexei Starovoitov
2017-08-17 18:58 ` John Fastabend
2017-08-17 22:28 ` Alexei Starovoitov
2017-08-18 7:35 ` John Fastabend
2017-08-18 18:32 ` Alexei Starovoitov
2017-08-19 3:30 ` John Fastabend
2017-08-19 4:50 ` Alexei Starovoitov
2017-08-19 20:52 ` John Fastabend
2017-08-16 5:33 ` [net-next PATCH 07/10] bpf: add access to sock fields and pkt data from sk_skb programs John Fastabend
2017-08-17 5:42 ` Alexei Starovoitov
2017-08-17 12:40 ` Daniel Borkmann
2017-08-16 5:33 ` [net-next PATCH 08/10] bpf: sockmap sample program John Fastabend
2017-08-16 5:33 ` John Fastabend [this message]
2017-08-16 5:34 ` [net-next PATCH 10/10] bpf: selftests add sockmap tests John Fastabend
2017-08-16 15:25 ` [net-next PATCH 00/10] BPF: sockmap and sk redirect support Daniel Borkmann
2017-08-16 18:28 ` David Miller
2017-08-16 18:35 ` David Miller
2017-08-16 19:06 ` John Fastabend
2017-08-16 19:13 ` David Miller
2017-08-16 19:17 ` Eric Dumazet
2017-08-16 19:34 ` John Fastabend
2017-08-16 21:22 ` David Miller
2017-08-16 21:35 ` David Ahern
2017-08-16 21:37 ` John Fastabend
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