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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2008-06-20 01:33:57 +0200
committerDavid S. Miller <davem@davemloft.net>2008-06-20 01:33:57 +0200
commitf630e43a215a3129d0c1173cae0bce6ea4855cf7 (patch)
tree9bd9c07a59622dfb166624f79d2d71f7e076aa13 /include/net/ipv6.h
parentipv6: Remove options header when setsockopt's optlen is 0 (diff)
downloadlinux-f630e43a215a3129d0c1173cae0bce6ea4855cf7.tar.xz
linux-f630e43a215a3129d0c1173cae0bce6ea4855cf7.zip
ipv6: Drop packets for loopback address from outside of the box.
[ Based upon original report and patch by Karsten Keil. Karsten has verified that this fixes the TAHI test case "ICMPv6 test v6LC.5.1.2 Part F". -DaveM ] Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ipv6.h')
-rw-r--r--include/net/ipv6.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index e0a612bc9c4e..f422f7218e1c 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -367,6 +367,12 @@ static inline int ipv6_addr_any(const struct in6_addr *a)
a->s6_addr32[2] | a->s6_addr32[3] ) == 0);
}
+static inline int ipv6_addr_loopback(const struct in6_addr *a)
+{
+ return ((a->s6_addr32[0] | a->s6_addr32[1] |
+ a->s6_addr32[2] | (a->s6_addr32[3] ^ htonl(1))) == 0);
+}
+
static inline int ipv6_addr_v4mapped(const struct in6_addr *a)
{
return ((a->s6_addr32[0] | a->s6_addr32[1] |