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| author | Thomas Haller <thaller@redhat.com> | 2015-03-19 11:22:12 (GMT) |
|---|---|---|
| committer | Thomas Haller <thaller@redhat.com> | 2015-03-19 11:26:53 (GMT) |
| commit | 860ea27a466cfbe1fdc879ef9eb6e67fb5eaae21 (patch) | |
| tree | 5a4b9b8b2219ccba47370a7daefa1d76f65d5d4a /include/netlink | |
| parent | ff19c781d3b655aba3dcf07a68537c7bae2468b5 (diff) | |
| download | libnl-860ea27a466cfbe1fdc879ef9eb6e67fb5eaae21.zip libnl-860ea27a466cfbe1fdc879ef9eb6e67fb5eaae21.tar.gz libnl-860ea27a466cfbe1fdc879ef9eb6e67fb5eaae21.tar.bz2 | |
utils: add code comment about capability number assignment
Also reserve a range of capabilities (0x7000 to 0x7FFF) that we won't
use upstream. Add a macro NL_CAPABILITY_IS_USER_RESERVED() to check
if the capability is in that range.
Signed-off-by: Thomas Haller <thaller@redhat.com>
Diffstat (limited to 'include/netlink')
| -rw-r--r-- | include/netlink/utils.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/netlink/utils.h b/include/netlink/utils.h index a172f3a..c609c6c 100644 --- a/include/netlink/utils.h +++ b/include/netlink/utils.h @@ -129,8 +129,15 @@ enum { NL_CAPABILITY_ROUTE_ADDR_COMPARE_CACHEINFO = 6, #define NL_CAPABILITY_ROUTE_ADDR_COMPARE_CACHEINFO NL_CAPABILITY_ROUTE_ADDR_COMPARE_CACHEINFO - __NL_CAPABILITY_MAX -#define NL_CAPABILITY_MAX (__NL_CAPABILITY_MAX - 1) + __NL_CAPABILITY_MAX, + NL_CAPABILITY_MAX = (__NL_CAPABILITY_MAX - 1), +#define NL_CAPABILITY_MAX NL_CAPABILITY_MAX + + /** + * The range 0x7000 to 0x7FFF is reserved for private capabilities. Upstream libnl3 will + * not register capabilities in this range. However, instead of adding private capabilities, + * better register their number with upstream libnl3. */ +#define NL_CAPABILITY_IS_USER_RESERVED(cap) ( ((cap) & ~0x0FFF) == 0x7000 ) }; int nl_has_capability (int capability); |