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Changed comments regarding hash function.

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This commit is contained in:
Martin Mares 2000-03-01 12:15:20 +00:00
parent 14a6c2a705
commit 4ebbbd4079
1 changed files with 7 additions and 2 deletions
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9
lib/ipv6.h
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@ -1,7 +1,7 @@
/* /*
* BIRD -- IP Addresses et Cetera for IPv6 * BIRD -- IP Addresses et Cetera for IPv6
* *
* (c) 1999 Martin Mares <mj@ucw.cz> * (c) 1999--2000 Martin Mares <mj@ucw.cz>
* *
* Can be freely distributed and used under the terms of the GNU GPL. * Can be freely distributed and used under the terms of the GNU GPL.
*/ */
@ -64,7 +64,12 @@ void ipv6_ntoh(ip_addr *);
int ipv6_compare(ip_addr, ip_addr); int ipv6_compare(ip_addr, ip_addr);
int ipv4_pton_u32(char *, u32 *); int ipv4_pton_u32(char *, u32 *);
/* FIXME: Is this hash function uniformly distributed over standard routing tables? */ /*
* This hash function looks well, but once IPv6 enters
* mainstream use, we need to check that it has good
* distribution properties on real routing tables.
*/
static inline unsigned ipv6_hash(ip_addr *a) static inline unsigned ipv6_hash(ip_addr *a)
{ {
/* Returns a 16-bit hash key */ /* Returns a 16-bit hash key */