Messages in this thread Patch in this message | | | From | Mateusz Guzik <> | Subject | [PATCH 1/2] CAPABILITIES: add cap_isequal helper | Date | Mon, 9 Mar 2015 21:35:46 +0100 |
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Can be used to determine whether two given sets have the same capabilities.
Signed-off-by: Mateusz Guzik <mguzik@redhat.com> --- include/linux/capability.h | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/include/linux/capability.h b/include/linux/capability.h index af9f0b9..2fcf941 100644 --- a/include/linux/capability.h +++ b/include/linux/capability.h @@ -155,6 +155,16 @@ static inline int cap_isclear(const kernel_cap_t a) return 1; } +static inline int cap_isequal(const kernel_cap_t a, const kernel_cap_t b) +{ + unsigned __capi; + CAP_FOR_EACH_U32(__capi) { + if (a.cap[__capi] != b.cap[__capi]) + return 0; + } + return 1; +} + /* * Check if "a" is a subset of "set". * return 1 if ALL of the capabilities in "a" are also in "set" -- 1.8.3.1
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