diff options
| author | Patrick McHardy <kaber@trash.net> | 2011-04-13 13:32:28 +0200 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2011-04-13 13:32:28 +0200 |
| commit | b32e3dc7860d00124fa432dba09667e647cb9bcc (patch) | |
| tree | 2fa6e56f389431dfb84609d3d7572cad76e88e71 /include/net/if_inet6.h | |
| parent | 6604271c5bc658a6067ed0c3deba4d89e0e50382 (diff) | |
| parent | 96120d86fe302c006259baee9061eea9e1b9e486 (diff) | |
Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
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 04977eefb0e..fccc2180c61 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 |