IPv6: Generic TTL Security Mechanism (final version)

[safe/jmp/linux-2.6] / net / ipv6 / ipv6_sockglue.c

diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 1160400..92295ad 100644 (file)
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -767,6 +767,14 @@ pref_skip_coa:
 
                break;
            }
+       case IPV6_MINHOPCOUNT:
+               if (optlen < sizeof(int))
+                       goto e_inval;
+               if (val < 0 || val > 255)
+                       goto e_inval;
+               np->min_hopcount = val;
+               retv = 0;
+               break;
        }
 
        release_sock(sk);
@@ -1116,6 +1124,10 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
                        val |= IPV6_PREFER_SRC_HOME;
                break;
 
+       case IPV6_MINHOPCOUNT:
+               val = np->min_hopcount;
+               break;
+
        default:
                return -ENOPROTOOPT;
        }