diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-04-18 17:12:14 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-04-18 17:12:14 +0100 |
| commit | fac56c2df51bc29b07b3c2dcfabf32a015a0522c (patch) | |
| tree | 1ff5d84ecf4ea0bcbd42e2ef9624b5ade3810890 /include/net/if_inet6.h | |
| parent | 6caa15d0b84d2ea688fd31f4f172c8353463e109 (diff) | |
| parent | a6360dd37e1a144ed11e6548371bade559a1e4df (diff) | |
Merge commit 'v2.6.39-rc3' into for-2.6.39
Diffstat (limited to 'include/net/if_inet6.h')
| -rw-r--r-- | include/net/if_inet6.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h index 04977eefb0ee..fccc2180c61b 100644 --- a/include/net/if_inet6.h +++ b/include/net/if_inet6.h @@ -286,5 +286,21 @@ static inline void ipv6_ib_mc_map(const struct in6_addr *addr, buf[9] = broadcast[9]; memcpy(buf + 10, addr->s6_addr + 6, 10); } + +static inline int ipv6_ipgre_mc_map(const struct in6_addr *addr, + const unsigned char *broadcast, char *buf) +{ + if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) { + memcpy(buf, broadcast, 4); + } else { + /* v4mapped? */ + if ((addr->s6_addr32[0] | addr->s6_addr32[1] | + (addr->s6_addr32[2] ^ htonl(0x0000ffff))) != 0) + return -EINVAL; + memcpy(buf, &addr->s6_addr32[3], 4); + } + return 0; +} + #endif #endif |