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authorNicolas Dichtel <nicolas.dichtel@6wind.com>2013-11-14 13:51:06 +0100
committerDavid S. Miller <davem@davemloft.net>2013-11-14 16:59:16 -0500
commitf0e2acfa30920fc9b902734baba71e58f2fd844a (patch)
treeb1170691501d18748d1aa47c005e9042be803861 /net/ipv6
parent929c9cf310565a97ec9bc685abbfeaed5fceb557 (diff)
downloadlinux-f0e2acfa30920fc9b902734baba71e58f2fd844a.tar.bz2
sit: link local routes are missing
When a link local address was added to a sit interface, the corresponding route was not configured. This breaks routing protocols that use the link local address, like OSPFv3. To ease the code reading, I remove sit_route_add(), which only adds v4 mapped routes, and add this kind of route directly in sit_add_v4_addrs(). Thus link local and v4 mapped routes are configured in the same place. Reported-by: Li Hongjun <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/addrconf.c24
1 files changed, 5 insertions, 19 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 27fedc3e4449..5969ca19a6c8 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1982,23 +1982,6 @@ static void addrconf_add_mroute(struct net_device *dev)
ip6_route_add(&cfg);
}
-#if IS_ENABLED(CONFIG_IPV6_SIT)
-static void sit_route_add(struct net_device *dev)
-{
- struct fib6_config cfg = {
- .fc_table = RT6_TABLE_MAIN,
- .fc_metric = IP6_RT_PRIO_ADDRCONF,
- .fc_ifindex = dev->ifindex,
- .fc_dst_len = 96,
- .fc_flags = RTF_UP | RTF_NONEXTHOP,
- .fc_nlinfo.nl_net = dev_net(dev),
- };
-
- /* prefix length - 96 bits "::d.d.d.d" */
- ip6_route_add(&cfg);
-}
-#endif
-
static struct inet6_dev *addrconf_add_dev(struct net_device *dev)
{
struct inet6_dev *idev;
@@ -2529,6 +2512,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
struct net_device *dev;
struct net *net = dev_net(idev->dev);
int scope, plen;
+ u32 pflags = 0;
ASSERT_RTNL();
@@ -2542,10 +2526,12 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
} else {
scope = IPV6_ADDR_COMPATv4;
plen = 96;
+ pflags |= RTF_NONEXTHOP;
}
if (addr.s6_addr32[3]) {
add_addr(idev, &addr, plen, scope);
+ addrconf_prefix_route(&addr, plen, idev->dev, 0, pflags);
return;
}
@@ -2569,6 +2555,8 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
}
add_addr(idev, &addr, plen, flag);
+ addrconf_prefix_route(&addr, plen, idev->dev, 0,
+ pflags);
}
}
}
@@ -2704,8 +2692,6 @@ static void addrconf_sit_config(struct net_device *dev)
if (dev->flags&IFF_POINTOPOINT)
addrconf_add_mroute(dev);
- else
- sit_route_add(dev);
}
#endif