+#define CAP_FOR_EACH_U32(__capi) \
+ for (__capi = 0; __capi < _LINUX_CAPABILITY_U32S; ++__capi)
+
+# define CAP_FS_MASK_B0 (CAP_TO_MASK(CAP_CHOWN) \
+ | CAP_TO_MASK(CAP_DAC_OVERRIDE) \
+ | CAP_TO_MASK(CAP_DAC_READ_SEARCH) \
+ | CAP_TO_MASK(CAP_FOWNER) \
+ | CAP_TO_MASK(CAP_FSETID))
+
+# define CAP_FS_MASK_B1 (CAP_TO_MASK(CAP_MAC_OVERRIDE))
+
+#if _LINUX_CAPABILITY_U32S != 2
+# error Fix up hand-coded capability macro initializers
+#else /* HAND-CODED capability initializers */
+
+# define CAP_EMPTY_SET ((kernel_cap_t){{ 0, 0 }})
+# define CAP_FULL_SET ((kernel_cap_t){{ ~0, ~0 }})
+# define CAP_INIT_EFF_SET ((kernel_cap_t){{ ~CAP_TO_MASK(CAP_SETPCAP), ~0 }})
+# define CAP_FS_SET ((kernel_cap_t){{ CAP_FS_MASK_B0, CAP_FS_MASK_B1 } })
+# define CAP_NFSD_SET ((kernel_cap_t){{ CAP_FS_MASK_B0|CAP_TO_MASK(CAP_SYS_RESOURCE), \
+ CAP_FS_MASK_B1 } })
+
+#endif /* _LINUX_CAPABILITY_U32S != 2 */
+
+#define CAP_INIT_INH_SET CAP_EMPTY_SET
+
+# define cap_clear(c) do { (c) = __cap_empty_set; } while (0)
+# define cap_set_full(c) do { (c) = __cap_full_set; } while (0)
+# define cap_set_init_eff(c) do { (c) = __cap_init_eff_set; } while (0)
+
+#define cap_raise(c, flag) ((c).cap[CAP_TO_INDEX(flag)] |= CAP_TO_MASK(flag))
+#define cap_lower(c, flag) ((c).cap[CAP_TO_INDEX(flag)] &= ~CAP_TO_MASK(flag))
+#define cap_raised(c, flag) ((c).cap[CAP_TO_INDEX(flag)] & CAP_TO_MASK(flag))
+
+#define CAP_BOP_ALL(c, a, b, OP) \
+do { \
+ unsigned __capi; \
+ CAP_FOR_EACH_U32(__capi) { \
+ c.cap[__capi] = a.cap[__capi] OP b.cap[__capi]; \
+ } \
+} while (0)
+
+#define CAP_UOP_ALL(c, a, OP) \
+do { \
+ unsigned __capi; \
+ CAP_FOR_EACH_U32(__capi) { \
+ c.cap[__capi] = OP a.cap[__capi]; \
+ } \
+} while (0)
+
+static inline kernel_cap_t cap_combine(const kernel_cap_t a,
+ const kernel_cap_t b)
+{
+ kernel_cap_t dest;
+ CAP_BOP_ALL(dest, a, b, |);
+ return dest;
+}