In RHEL7.0(3.10.0) the value of CAP_LAST_CAP in linux/capability.h is 36, it is
greater than in the capability.h which is used to create
libcap.so(libcap-2.22-8) and that value is 34. Then cap_get_flag returns -1, and
errno is set to EINVAL. Add comments to make this clear.
Signed-off-by: Zeng Linggang <zenglg...@cn.fujitsu.com>
---
testcases/kernel/security/securebits/check_keepcaps.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/testcases/kernel/security/securebits/check_keepcaps.c
b/testcases/kernel/security/securebits/check_keepcaps.c
index 83e463e..a602fb5 100644
--- a/testcases/kernel/security/securebits/check_keepcaps.c
+++ b/testcases/kernel/security/securebits/check_keepcaps.c
@@ -38,6 +38,16 @@ static int eff_caps_empty(cap_t c)
for (i = 0; i < CAP_LAST_CAP; i++) {
ret = cap_get_flag(c, i, CAP_PERMITTED, &v);
+ /*
+ * If the value of CAP_LAST_CAP in linux/capability.h is greater
+ * than the value in the capability.h which is used to create
+ * libcap.so. Then cap_get_flag returns -1, and errno is set to
+ * EINVAL.
+ */
+ if (ret == -1) {
+ tst_brkm(TBROK | TERRNO, NULL,
+ "Not expected. Please check arguments.");
+ }
if (ret || v)
empty = 0;
}
--
1.9.3
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