author: Yonghong Song <yhs@fb.com> 2018-02-02 22:37:15 -0800
committer: Daniel Borkmann <daniel@iogearbox.net> 2018-02-05 00:31:57 +0100
commit: 09584b406742413ac4c8d7e030374d4daa045b69
parent: a6b88814ab541d386d793f6df260a3e4d5cccb11
Commit Summary:
Diffstat:
1 file changed, 26 insertions, 5 deletions
diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index 4cd9ea9b3449..b4e22345963f 100644
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -83,6 +83,7 @@ struct bpf_test {
__u32 result;
} test[MAX_SUBTESTS];
int (*fill_helper)(struct bpf_test *self);
+ int expected_errcode; /* used when FLAG_EXPECTED_FAIL is set in the aux */
__u8 frag_data[MAX_DATA];
int stack_depth; /* for eBPF only, since tests don't call verifier */
};
@@ -2026,7 +2027,9 @@ static struct bpf_test tests[] = {
},
CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
{ },
- { }
+ { },
+ .fill_helper = NULL,
+ .expected_errcode = -EINVAL,
},
{
"check: div_k_0",
@@ -2036,7 +2039,9 @@ static struct bpf_test tests[] = {
},
CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
{ },
- { }
+ { },
+ .fill_helper = NULL,
+ .expected_errcode = -EINVAL,
},
{
"check: unknown insn",
@@ -2047,7 +2052,9 @@ static struct bpf_test tests[] = {
},
CLASSIC | FLAG_EXPECTED_FAIL,
{ },
- { }
+ { },
+ .fill_helper = NULL,
+ .expected_errcode = -EINVAL,
},
{
"check: out of range spill/fill",
@@ -2057,7 +2064,9 @@ static struct bpf_test tests[] = {
},
CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
{ },
- { }
+ { },
+ .fill_helper = NULL,
+ .expected_errcode = -EINVAL,
},
{
"JUMPS + HOLES",
@@ -2149,6 +2158,8 @@ static struct bpf_test tests[] = {
CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
{ },
{ },
+ .fill_helper = NULL,
+ .expected_errcode = -EINVAL,
},
{
"check: LDX + RET X",
@@ -2159,6 +2170,8 @@ static struct bpf_test tests[] = {
CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
{ },
{ },
+ .fill_helper = NULL,
+ .expected_errcode = -EINVAL,
},
{ /* Mainly checking JIT here. */
"M[]: alt STX + LDX",
@@ -2333,6 +2346,8 @@ static struct bpf_test tests[] = {
CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
{ },
{ },
+ .fill_helper = NULL,
+ .expected_errcode = -EINVAL,
},
{ /* Passes checker but fails during runtime. */
"LD [SKF_AD_OFF-1]",
@@ -5395,6 +5410,7 @@ static struct bpf_test tests[] = {
{ },
{ },
.fill_helper = bpf_fill_maxinsns4,
+ .expected_errcode = -EINVAL,
},
{ /* Mainly checking JIT here. */
"BPF_MAXINSNS: Very long jump",
@@ -5450,10 +5466,15 @@ static struct bpf_test tests[] = {
{
"BPF_MAXINSNS: Jump, gap, jump, ...",
{ },
+#ifdef CONFIG_BPF_JIT_ALWAYS_ON
+ CLASSIC | FLAG_NO_DATA | FLAG_EXPECTED_FAIL,
+#else
CLASSIC | FLAG_NO_DATA,
+#endif
{ },
{ { 0, 0xababcbac } },
.fill_helper = bpf_fill_maxinsns11,
+ .expected_errcode = -ENOTSUPP,
},
{
"BPF_MAXINSNS: ld_abs+get_processor_id",
@@ -6344,7 +6365,7 @@ static struct bpf_prog *generate_filter(int which, int *err)
*err = bpf_prog_create(&fp, &fprog);
if (tests[which].aux & FLAG_EXPECTED_FAIL) {
- if (*err == -EINVAL) {
+ if (*err == tests[which].expected_errcode) {
pr_cont("PASS\n");
/* Verifier rejected filter as expected. */
*err = 0;