diff options
Diffstat (limited to 'lib/ipv6.h')
| -rw-r--r-- | lib/ipv6.h | 46 |
1 files changed, 29 insertions, 17 deletions
@@ -1,7 +1,7 @@ /* * BIRD -- IP Addresses et Cetera for IPv6 * - * (c) 1998 Martin Mares <mj@ucw.cz> + * (c) 1999 Martin Mares <mj@ucw.cz> * * Can be freely distributed and used under the terms of the GNU GPL. */ @@ -12,11 +12,11 @@ #include <netinet/in.h> #include <string.h> -typedef struct ipv4_addr { +typedef struct ipv6_addr { u32 addr[4]; } ip_addr; -#define _MI(a,b,c,d) ((struct ip_addr) { a, b, c, d }) +#define _MI(a,b,c,d) ((struct ipv6_addr) {{ a, b, c, d }}) #define _I0(a) ((a).addr[0]) #define _I1(a) ((a).addr[1]) #define _I2(a) ((a).addr[2]) @@ -28,38 +28,50 @@ 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), \ - _I3(a) & _I3(b)) -#define ipa_or(a,b) _MI(_I0(a) | _I0(b), \ - _I1(a) | _I1(b), \ - _I2(a) | _I2(b), \ - _I3(a) | _I3(b)) -#define ipa_xor(a,b) _MI(_I0(a) ^ _I0(b), \ - _I1(a) ^ _I1(b), \ - _I2(a) ^ _I2(b), \ - _I3(a) ^ _I3(b)) -#define ipa_not(a) _MI(~_I0(a),~_I1(a),~_I2(a),~_I3(a)) +#define ipa_nonzero(x) ({ ip_addr _a=(x); (_I0(_a) || _I1(_a) || _I2(_a) || _I3(_a)); }) +#define ipa_and(x,y) ({ ip_addr _a=(x), _b=(y); \ + _MI(_I0(_a) & _I0(_b), \ + _I1(_a) & _I1(_b), \ + _I2(_a) & _I2(_b), \ + _I3(_a) & _I3(_b)); }) +#define ipa_or(x,y) ({ ip_addr _a=(x), _b=(y); \ + _MI(_I0(_a) | _I0(_b), \ + _I1(_a) | _I1(_b), \ + _I2(_a) | _I2(_b), \ + _I3(_a) | _I3(_b)); }) +#define ipa_xor(x,y) ({ ip_addr _a=(x), _b=(y); \ + _MI(_I0(_a) ^ _I0(_b), \ + _I1(_a) ^ _I1(_b), \ + _I2(_a) ^ _I2(_b), \ + _I3(_a) ^ _I3(_b)); }) +#define ipa_not(x) ({ ip_addr _a=(x); _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_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)) +/* ipa_opposite and ipa_class_mask don't make sense with IPv6 */ +/* ipa_from_u32 and ipa_to_u32 replaced by ipa_build */ +#define ipa_build(a,b,c,d) _MI(a,b,c,d) +#define ipa_compare(x,y) ipv6_compare(&x,&y) ip_addr ipv6_mkmask(unsigned); unsigned ipv6_mklen(ip_addr *); int ipv6_classify(ip_addr *); void ipv6_hton(ip_addr *); void ipv6_ntoh(ip_addr *); +int ipv6_compare(ip_addr *, ip_addr *); +int ipv4_pton_u32(char *, u32 *); /* FIXME: Is this hash function uniformly distributed over standard routing tables? */ static inline unsigned ipv6_hash(ip_addr *a) { + /* Returns a 16-bit hash key */ u32 x = _I0(*a) ^ _I1(*a) ^ _I2(*a) ^ _I3(*a); return (x ^ (x >> 16) ^ (x >> 8)) & 0xffff; } +#define IP_PREC_INTERNET_CONTROL 0 /* FIXME: What's the right value? */ + #endif |