From 46d480468fd9d165513d96f5e545538425d6472d Mon Sep 17 00:00:00 2001 From: YOSHIFUJI Hideaki Date: Wed, 7 Feb 2007 20:36:26 +0900 Subject: [PATCH] [IPV6] ADDRCONF: Manage prefix route corresponding to address manually added. It is more natural to manage prefix routes corresponding to address which is being added manually. With help from Masafumi Aramoto . Signed-off-by: YOSHIFUJI Hideaki --- net/ipv6/addrconf.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 524bffe624..7a2a71536b 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1842,6 +1842,7 @@ static int inet6_addr_add(int ifindex, struct in6_addr *pfx, int plen, struct inet6_dev *idev; struct net_device *dev; int scope; + u32 flags = RTF_EXPIRES; ASSERT_RTNL(); @@ -1857,9 +1858,10 @@ static int inet6_addr_add(int ifindex, struct in6_addr *pfx, int plen, scope = ipv6_addr_scope(pfx); - if (valid_lft == INFINITY_LIFE_TIME) + if (valid_lft == INFINITY_LIFE_TIME) { ifa_flags |= IFA_F_PERMANENT; - else if (valid_lft >= 0x7FFFFFFF/HZ) + flags = 0; + } else if (valid_lft >= 0x7FFFFFFF/HZ) valid_lft = 0x7FFFFFFF/HZ; if (prefered_lft == 0) @@ -1877,6 +1879,8 @@ static int inet6_addr_add(int ifindex, struct in6_addr *pfx, int plen, ifp->tstamp = jiffies; spin_unlock_bh(&ifp->lock); + addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev, + jiffies_to_clock_t(valid_lft * HZ), flags); addrconf_dad_start(ifp, 0); in6_ifa_put(ifp); addrconf_verify(0); @@ -2056,6 +2060,7 @@ static void addrconf_add_linklocal(struct inet6_dev *idev, struct in6_addr *addr ifp = ipv6_add_addr(idev, addr, 64, IFA_LINK, IFA_F_PERMANENT); if (!IS_ERR(ifp)) { + addrconf_prefix_route(&ifp->addr, ifp->prefix_len, idev->dev, 0, 0); addrconf_dad_start(ifp, 0); in6_ifa_put(ifp); } @@ -2470,10 +2475,6 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags) addrconf_join_solict(dev, &ifp->addr); - if (ifp->prefix_len != 128 && (ifp->flags&IFA_F_PERMANENT)) - addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev, 0, - flags); - net_srandom(ifp->addr.s6_addr32[3]); read_lock_bh(&idev->lock); @@ -2904,12 +2905,15 @@ inet6_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags, u32 prefered_lft, u32 valid_lft) { + u32 flags = RTF_EXPIRES; + if (!valid_lft || (prefered_lft > valid_lft)) return -EINVAL; - if (valid_lft == INFINITY_LIFE_TIME) + if (valid_lft == INFINITY_LIFE_TIME) { ifa_flags |= IFA_F_PERMANENT; - else if (valid_lft >= 0x7FFFFFFF/HZ) + flags = 0; + } else if (valid_lft >= 0x7FFFFFFF/HZ) valid_lft = 0x7FFFFFFF/HZ; if (prefered_lft == 0) @@ -2928,6 +2932,8 @@ static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags, if (!(ifp->flags&IFA_F_TENTATIVE)) ipv6_ifa_notify(0, ifp); + addrconf_prefix_route(&ifp->addr, ifp->prefix_len, ifp->idev->dev, + jiffies_to_clock_t(valid_lft * HZ), flags); addrconf_verify(0); return 0; -- 2.20.1