diff options
Diffstat (limited to 'include/net/addrconf.h')
| -rw-r--r-- | include/net/addrconf.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h index bccc2feb99d..c56827da0de 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -17,6 +17,7 @@ #define IPV6_MAX_ADDRESSES 16 +#include <linux/in.h> #include <linux/in6.h> struct prefix_info { @@ -249,6 +250,24 @@ static inline int ipv6_addr_is_ll_all_routers(const struct in6_addr *addr) addr->s6_addr32[3] == htonl(0x00000002)); } +static inline int ipv6_isatap_eui64(u8 *eui, __be32 addr) +{ + eui[0] = (ZERONET(addr) || PRIVATE_10(addr) || LOOPBACK(addr) || + LINKLOCAL_169(addr) || PRIVATE_172(addr) || TEST_192(addr) || + ANYCAST_6TO4(addr) || PRIVATE_192(addr) || TEST_198(addr) || + MULTICAST(addr) || BADCLASS(addr)) ? 0x00 : 0x02; + eui[1] = 0; + eui[2] = 0x5E; + eui[3] = 0xFE; + memcpy (eui+4, &addr, 4); + return 0; +} + +static inline int ipv6_addr_is_isatap(const struct in6_addr *addr) +{ + return ((addr->s6_addr32[2] | htonl(0x02000000)) == htonl(0x02005EFE)); +} + #ifdef CONFIG_PROC_FS extern int if6_proc_init(void); extern void if6_proc_exit(void); |