From: David S. Miller Date: Tue, 2 Oct 2018 06:05:32 +0000 (-0700) Subject: Merge branch 'netlink-extended-attribute-validation' X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a1fa80802cb02cb043fd61b87bc81c06a38b4bb1;p=linux.git Merge branch 'netlink-extended-attribute-validation' Johannes Berg says: ==================== netlink: extended attribute validation This adds further netlink attribute validation: * min/max/range validation * validation through a custom function pointer This is useful to * reduce boilerplate code in command handling code, if attributes are used commonly across different commands * get more extended ACK error messages/attribute pointers * ensure attributes are valid even when ignored (though this might be a problem when converting existing code) Changes since v1: * split off validate_type from type and use that for min/max/range and function; this is better because the range is limited to the range of s16 and so things like "u16 with minimum value 1" couldn't be expressed earlier * add macros for this, e.g. NLA_POLICY_MIN(NLA_U16, 1) for the case mentioned in the previous bullet Using this pretty much in all places where applicable in nl80211 reduces the code size there by about 1.8KiB, with just a minimal code increase in lib/nlattr.o. ==================== Signed-off-by: David S. Miller --- a1fa80802cb02cb043fd61b87bc81c06a38b4bb1