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authorJohn Fastabend <john.fastabend@gmail.com>2018-12-16 15:47:06 -0800
committerDaniel Borkmann <daniel@iogearbox.net>2018-12-19 00:27:23 +0100
commit945a47d87cee24a95e11fdc0cd868b872f9b9616 (patch)
tree70590ac2bacf2a40aec88e06aca9e924e48695ef /tools
parent584e46813e689ff1a348343b73122c43d81d0ef7 (diff)
downloadlinux-945a47d87cee24a95e11fdc0cd868b872f9b9616.tar.bz2
bpf: sk_msg, add tests for size field
This adds tests to read the size field to test_verifier. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/bpf/test_verifier.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
index cf242734e2eb..7865b94c02c4 100644
--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -1843,10 +1843,20 @@ static struct bpf_test tests[] = {
.prog_type = BPF_PROG_TYPE_SK_SKB,
},
{
- "invalid 64B read of family in SK_MSG",
+ "valid access size in SK_MSG",
+ .insns = {
+ BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+ offsetof(struct sk_msg_md, size)),
+ BPF_EXIT_INSN(),
+ },
+ .result = ACCEPT,
+ .prog_type = BPF_PROG_TYPE_SK_MSG,
+ },
+ {
+ "invalid 64B read of size in SK_MSG",
.insns = {
BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1,
- offsetof(struct sk_msg_md, family)),
+ offsetof(struct sk_msg_md, size)),
BPF_EXIT_INSN(),
},
.errstr = "invalid bpf_context access",
@@ -1857,7 +1867,7 @@ static struct bpf_test tests[] = {
"invalid read past end of SK_MSG",
.insns = {
BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
- offsetof(struct sk_msg_md, local_port) + 4),
+ offsetof(struct sk_msg_md, size) + 4),
BPF_EXIT_INSN(),
},
.errstr = "R0 !read_ok",