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| author | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2008-05-13 01:16:24 +0900 |
|---|---|---|
| committer | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2008-06-12 02:38:14 +0900 |
| commit | 2b5ead46442d80928cce987ae6acf3fe99968ad8 (patch) | |
| tree | d3d33e8b9ba9b08a24a0e1f58d1d5675ab5da8e1 /net/ipv6 | |
| parent | 0399e5f07ad7024f70881d44f19d767d3f25a980 (diff) | |
| download | linux-2b5ead46442d80928cce987ae6acf3fe99968ad8.tar.gz linux-2b5ead46442d80928cce987ae6acf3fe99968ad8.tar.bz2 linux-2b5ead46442d80928cce987ae6acf3fe99968ad8.zip | |
ipv6 addrconf: Introduce addrconf_is_prefix_route() helper.
This inline function, for readability, returns if the route
is a "prefix" route regardless if it was installed by RA or by
hand.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/addrconf.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 147588f4c7c0..9ea4e62741ee 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -231,6 +231,12 @@ static inline int addrconf_qdisc_ok(struct net_device *dev) return (dev->qdisc != &noop_qdisc); } +/* Check if a route is valid prefix route */ +static inline int addrconf_is_prefix_route(const struct rt6_info *rt) +{ + return ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0); +} + static void addrconf_del_timer(struct inet6_ifaddr *ifp) { if (del_timer(&ifp->timer)) @@ -777,7 +783,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) ipv6_addr_prefix(&prefix, &ifp->addr, ifp->prefix_len); rt = rt6_lookup(net, &prefix, NULL, ifp->idev->dev->ifindex, 1); - if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) { + if (rt && addrconf_is_prefix_route(rt)) { if (onlink == 0) { ip6_del_rt(rt); rt = NULL; @@ -1788,7 +1794,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len) rt = rt6_lookup(dev_net(dev), &pinfo->prefix, NULL, dev->ifindex, 1); - if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) { + if (rt && addrconf_is_prefix_route(rt)) { /* Autoconf prefix route */ if (valid_lft == 0) { ip6_del_rt(rt); |