diff options
Diffstat (limited to 'net/ipv6/addrconf.c')
| -rw-r--r-- | net/ipv6/addrconf.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index c17f8c0b933..924158393d0 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -412,7 +412,7 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev) return ndev; } -static struct inet6_dev * ipv6_find_idev(struct net_device *dev) +struct inet6_dev * ipv6_find_idev(struct net_device *dev) { struct inet6_dev *idev; @@ -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) @@ -1859,6 +1875,9 @@ 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 && @@ -3553,6 +3572,9 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf, #ifdef CONFIG_IPV6_OPTIMISTIC_DAD array[DEVCONF_OPTIMISTIC_DAD] = cnf->optimistic_dad; #endif +#ifdef CONFIG_IPV6_MROUTE + array[DEVCONF_MC_FORWARDING] = cnf->mc_forwarding; +#endif } static inline size_t inet6_if_nlmsg_size(void) @@ -3883,7 +3905,7 @@ static int addrconf_sysctl_forward_strategy(ctl_table *table, static struct addrconf_sysctl_table { struct ctl_table_header *sysctl_header; - ctl_table addrconf_vars[__NET_IPV6_MAX]; + ctl_table addrconf_vars[DEVCONF_MAX+1]; char *dev_name; } addrconf_sysctl __read_mostly = { .sysctl_header = NULL, @@ -4101,6 +4123,16 @@ static struct addrconf_sysctl_table }, #endif +#ifdef CONFIG_IPV6_MROUTE + { + .ctl_name = CTL_UNNUMBERED, + .procname = "mc_forwarding", + .data = &ipv6_devconf.mc_forwarding, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, +#endif { .ctl_name = 0, /* sentinel */ } |