diff options
| author | David S. Miller <davem@davemloft.net> | 2008-04-02 22:35:23 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-04-02 22:35:23 -0700 |
| commit | e1ec1b8ccdf0df6000faa8c2d985ca5f94157e5a (patch) | |
| tree | 4e1ca325dde22f1ac21c9da0be509e87e922e604 /net/ipv6/addrconf.c | |
| parent | c0f39322c335412339dec16ebfd2a05ceba5ebcf (diff) | |
| parent | 802fb176d8c635ae42da31b80841c26e8c7338a0 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/s2io.c
Diffstat (limited to 'net/ipv6/addrconf.c')
| -rw-r--r-- | net/ipv6/addrconf.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 5ab9973571e..87f688857ad 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -776,6 +776,7 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i struct inet6_dev *idev = ifp->idev; struct in6_addr addr, *tmpaddr; unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_cstamp, tmp_tstamp; + unsigned long regen_advance; int tmp_plen; int ret = 0; int max_addresses; @@ -836,8 +837,23 @@ retry: tmp_tstamp = ifp->tstamp; spin_unlock_bh(&ifp->lock); + regen_advance = idev->cnf.regen_max_retry * + idev->cnf.dad_transmits * + idev->nd_parms->retrans_time / HZ; write_unlock(&idev->lock); + /* A temporary address is created only if this calculated Preferred + * Lifetime is greater than REGEN_ADVANCE time units. In particular, + * an implementation must not create a temporary address with a zero + * Preferred Lifetime. + */ + if (tmp_prefered_lft <= regen_advance) { + in6_ifa_put(ifp); + in6_dev_put(idev); + ret = -1; + goto out; + } + addr_flags = IFA_F_TEMPORARY; /* set in addrconf_prefix_rcv() */ if (ifp->flags & IFA_F_OPTIMISTIC) @@ -1834,6 +1850,9 @@ ok: * lifetimes of an existing temporary address * when processing a Prefix Information Option. */ + if (ifp != ift->ifpub) + continue; + spin_lock(&ift->lock); flags = ift->flags; if (ift->valid_lft > valid_lft && |