diff options
Diffstat (limited to 'lib/ipv6.h')
| -rw-r--r-- | lib/ipv6.h | 20 |
1 files changed, 17 insertions, 3 deletions
@@ -25,6 +25,7 @@ typedef struct ipv4_addr { #define IPA_NONE _MI(0,0,0,0) #define ipa_equal(x,y) (!memcmp(&(x),&(y),sizeof(ip_addr))) +#define ipa_nonzero(x) (_I0(a) || _I1(a) || _I2(a) || _I3(a)) #define ipa_and(a,b) _MI(_I0(a) & _I0(b), \ _I1(a) & _I1(b), \ _I2(a) & _I2(b), \ @@ -34,11 +35,24 @@ typedef struct ipv4_addr { _I2(a) | _I2(b), \ _I3(a) | _I3(b)) #define ipa_not(a) _MI(~_I0(a),~_I1(a),~_I2(a),~_I3(a)) - #define ipa_mkmask(x) ipv6_mkmask(x) -#define ipa_mklen(x) ipv6_mklen(x) +#define ipa_mklen(x) ipv6_mklen(&(x)) +#define ipa_hash(x) ipv6_hash(&(x)) +#define ipa_hton(x) ipv6_hton(&(x)) +#define ipa_ntoh(x) ipv6_ntoh(&(x)) +#define ipa_classify(x) ipv6_classify(&(x)) ip_addr ipv6_mkmask(unsigned); -unsigned ipv6_mklen(ip_addr); +unsigned ipv6_mklen(ip_addr *); +int ipv6_classify(ip_addr *); +void ipv6_hton(ip_addr *); +void ipv6_ntoh(ip_addr *); + +/* FIXME: Is this hash function uniformly distributed over standard routing tables? */ +static inline unsigned ipv6_hash(ip_addr *a) +{ + u32 x = _I0(*a) ^ _I1(*a) ^ _I2(*a) ^ _I3(*a); + return x ^ (x >> 16) ^ (x >> 8); +} #endif |