diff options
Diffstat (limited to 'net/ipv6/addrconf.c')
-rw-r--r-- | net/ipv6/addrconf.c | 86 |
1 files changed, 59 insertions, 27 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 784f34d11fdd..e048ec62d109 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -121,8 +121,6 @@ static inline void addrconf_sysctl_unregister(struct inet6_dev *idev) static int __ipv6_regen_rndid(struct inet6_dev *idev); static int __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpaddr); static void ipv6_regen_rndid(unsigned long data); - -static int desync_factor = MAX_DESYNC_FACTOR * HZ; #endif static int ipv6_generate_eui64(u8 *eui, struct net_device *dev); @@ -245,7 +243,7 @@ static inline bool addrconf_qdisc_ok(const struct net_device *dev) /* 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); + return (rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0; } static void addrconf_del_timer(struct inet6_ifaddr *ifp) @@ -284,13 +282,16 @@ static void addrconf_mod_timer(struct inet6_ifaddr *ifp, static int snmp6_alloc_dev(struct inet6_dev *idev) { if (snmp_mib_init((void __percpu **)idev->stats.ipv6, - sizeof(struct ipstats_mib)) < 0) + sizeof(struct ipstats_mib), + __alignof__(struct ipstats_mib)) < 0) goto err_ip; if (snmp_mib_init((void __percpu **)idev->stats.icmpv6, - sizeof(struct icmpv6_mib)) < 0) + sizeof(struct icmpv6_mib), + __alignof__(struct icmpv6_mib)) < 0) goto err_icmp; if (snmp_mib_init((void __percpu **)idev->stats.icmpv6msg, - sizeof(struct icmpv6msg_mib)) < 0) + sizeof(struct icmpv6msg_mib), + __alignof__(struct icmpv6msg_mib)) < 0) goto err_icmpmsg; return 0; @@ -557,7 +558,7 @@ void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp) pr_warning("Freeing alive inet6 address %p\n", ifp); return; } - dst_release(&ifp->rt->u.dst); + dst_release(&ifp->rt->dst); call_rcu(&ifp->rcu, inet6_ifa_finish_destroy_rcu); } @@ -823,7 +824,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) rt->rt6i_flags |= RTF_EXPIRES; } } - dst_release(&rt->u.dst); + dst_release(&rt->dst); } out: @@ -835,7 +836,7 @@ 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 tmp_prefered_lft, tmp_valid_lft, tmp_cstamp, tmp_tstamp, age; unsigned long regen_advance; int tmp_plen; int ret = 0; @@ -885,12 +886,14 @@ retry: goto out; } memcpy(&addr.s6_addr[8], idev->rndid, 8); + age = (jiffies - ifp->tstamp) / HZ; tmp_valid_lft = min_t(__u32, ifp->valid_lft, - idev->cnf.temp_valid_lft); + idev->cnf.temp_valid_lft + age); tmp_prefered_lft = min_t(__u32, ifp->prefered_lft, - idev->cnf.temp_prefered_lft - desync_factor / HZ); + idev->cnf.temp_prefered_lft + age - + idev->cnf.max_desync_factor); tmp_plen = ifp->prefix_len; max_addresses = idev->cnf.max_addresses; tmp_cstamp = ifp->cstamp; @@ -1424,8 +1427,10 @@ void addrconf_dad_failure(struct inet6_ifaddr *ifp) { struct inet6_dev *idev = ifp->idev; - if (addrconf_dad_end(ifp)) + if (addrconf_dad_end(ifp)) { + in6_ifa_put(ifp); return; + } if (net_ratelimit()) printk(KERN_INFO "%s: IPv6 duplicate address %pI6c detected!\n", @@ -1542,7 +1547,7 @@ static int addrconf_ifid_infiniband(u8 *eui, struct net_device *dev) return 0; } -int __ipv6_isatap_ifid(u8 *eui, __be32 addr) +static int __ipv6_isatap_ifid(u8 *eui, __be32 addr) { if (addr == 0) return -1; @@ -1558,7 +1563,6 @@ int __ipv6_isatap_ifid(u8 *eui, __be32 addr) memcpy(eui + 4, &addr, 4); return 0; } -EXPORT_SYMBOL(__ipv6_isatap_ifid); static int addrconf_ifid_sit(u8 *eui, struct net_device *dev) { @@ -1650,7 +1654,8 @@ static void ipv6_regen_rndid(unsigned long data) expires = jiffies + idev->cnf.temp_prefered_lft * HZ - - idev->cnf.regen_max_retry * idev->cnf.dad_transmits * idev->nd_parms->retrans_time - desync_factor; + idev->cnf.regen_max_retry * idev->cnf.dad_transmits * idev->nd_parms->retrans_time - + idev->cnf.max_desync_factor * HZ; if (time_before(expires, jiffies)) { printk(KERN_WARNING "ipv6_regen_rndid(): too short regeneration interval; timer disabled for %s.\n", @@ -1866,7 +1871,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len) dev, expires, flags); } if (rt) - dst_release(&rt->u.dst); + dst_release(&rt->dst); } /* Try to figure out our local address for this prefix */ @@ -2019,10 +2024,11 @@ ok: ipv6_ifa_notify(0, ift); } - if (create && in6_dev->cnf.use_tempaddr > 0) { + if ((create || list_empty(&in6_dev->tempaddr_list)) && in6_dev->cnf.use_tempaddr > 0) { /* * When a new public address is created as described in [ADDRCONF], - * also create a new temporary address. + * also create a new temporary address. Also create a temporary + * address if it's enabled but no temporary address currently exists. */ read_unlock_bh(&in6_dev->lock); ipv6_create_tempaddr(ifp, NULL); @@ -2961,7 +2967,8 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp) start sending router solicitations. */ - if (ifp->idev->cnf.forwarding == 0 && + if ((ifp->idev->cnf.forwarding == 0 || + ifp->idev->cnf.forwarding == 2) && ifp->idev->cnf.rtr_solicits > 0 && (dev->flags&IFF_LOOPBACK) == 0 && (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) { @@ -3496,8 +3503,12 @@ static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa, preferred -= tval; else preferred = 0; - if (valid != INFINITY_LIFE_TIME) - valid -= tval; + if (valid != INFINITY_LIFE_TIME) { + if (valid > tval) + valid -= tval; + else + valid = 0; + } } } else { preferred = INFINITY_LIFE_TIME; @@ -3859,12 +3870,28 @@ static inline void __snmp6_fill_stats(u64 *stats, void __percpu **mib, memset(&stats[items], 0, pad); } +static inline void __snmp6_fill_stats64(u64 *stats, void __percpu **mib, + int items, int bytes, size_t syncpoff) +{ + int i; + int pad = bytes - sizeof(u64) * items; + BUG_ON(pad < 0); + + /* Use put_unaligned() because stats may not be aligned for u64. */ + put_unaligned(items, &stats[0]); + for (i = 1; i < items; i++) + put_unaligned(snmp_fold_field64(mib, i, syncpoff), &stats[i]); + + memset(&stats[items], 0, pad); +} + static void snmp6_fill_stats(u64 *stats, struct inet6_dev *idev, int attrtype, int bytes) { switch (attrtype) { case IFLA_INET6_STATS: - __snmp6_fill_stats(stats, (void __percpu **)idev->stats.ipv6, IPSTATS_MIB_MAX, bytes); + __snmp6_fill_stats64(stats, (void __percpu **)idev->stats.ipv6, + IPSTATS_MIB_MAX, bytes, offsetof(struct ipstats_mib, syncp)); break; case IFLA_INET6_ICMP6STATS: __snmp6_fill_stats(stats, (void __percpu **)idev->stats.icmpv6, ICMP6_MIB_MAX, bytes); @@ -4097,11 +4124,11 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp) if (ifp->idev->cnf.forwarding) addrconf_leave_anycast(ifp); addrconf_leave_solict(ifp->idev, &ifp->addr); - dst_hold(&ifp->rt->u.dst); + dst_hold(&ifp->rt->dst); if (ifp->state == INET6_IFADDR_STATE_DEAD && ip6_del_rt(ifp->rt)) - dst_free(&ifp->rt->u.dst); + dst_free(&ifp->rt->dst); break; } } @@ -4614,10 +4641,12 @@ int __init addrconf_init(void) if (err < 0) { printk(KERN_CRIT "IPv6 Addrconf:" " cannot initialize default policy table: %d.\n", err); - return err; + goto out; } - register_pernet_subsys(&addrconf_ops); + err = register_pernet_subsys(&addrconf_ops); + if (err < 0) + goto out_addrlabel; /* The addrconf netdev notifier requires that loopback_dev * has it's ipv6 private information allocated and setup @@ -4669,7 +4698,9 @@ errout: unregister_netdevice_notifier(&ipv6_dev_notf); errlo: unregister_pernet_subsys(&addrconf_ops); - +out_addrlabel: + ipv6_addr_label_cleanup(); +out: return err; } @@ -4680,6 +4711,7 @@ void addrconf_cleanup(void) unregister_netdevice_notifier(&ipv6_dev_notf); unregister_pernet_subsys(&addrconf_ops); + ipv6_addr_label_cleanup(); rtnl_lock(); |