Merge git://git.skbuff.net/gitroot/yoshfuji/linux-2.6.14+git+ipv6-fix-20051221a (e6469297) · Commits · e / devices / android_kernel_xiaomi_markw

include/linux/ipv6_route.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@
		fallback, no routers on link */
		#define RTF_ADDRCONF 0x00040000 /* addrconf route - RA */
		#define RTF_PREFIX_RT 0x00080000 /* A prefix only route - RA */
		#define RTF_ANYCAST 0x00100000 /* Anycast */

		#define RTF_NONEXTHOP 0x00200000 /* route with no nexthop */
		#define RTF_EXPIRES 0x00400000

include/net/if_inet6.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@
		#define IF_RA_MANAGED 0x40
		#define IF_RA_RCVD 0x20
		#define IF_RS_SENT 0x10
		#define IF_READY 0x80000000

		/* prefix flags */
		#define IF_PREFIX_ONLINK 0x01

net/ipv6/addrconf.c

+95 −11

Original line number	Diff line number	Diff line
		@@ -137,6 +137,7 @@ static int addrconf_ifdown(struct net_device *dev, int how);
		static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags);
		static void addrconf_dad_timer(unsigned long data);
		static void addrconf_dad_completed(struct inet6_ifaddr *ifp);
		static void addrconf_dad_run(struct inet6_dev *idev);
		static void addrconf_rs_timer(unsigned long data);
		static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifa);
		static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifa);
		@@ -388,6 +389,9 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
		}
		#endif

		if (netif_carrier_ok(dev))
		ndev->if_flags \|= IF_READY;

		write_lock_bh(&addrconf_lock);
		dev->ip6_ptr = ndev;
		write_unlock_bh(&addrconf_lock);
		@@ -415,6 +419,7 @@ static struct inet6_dev * ipv6_find_idev(struct net_device *dev)
		if ((idev = ipv6_add_dev(dev)) == NULL)
		return NULL;
		}

		if (dev->flags&IFF_UP)
		ipv6_mc_up(idev);
		return idev;
		@@ -904,11 +909,18 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev,

		score.addr_type = __ipv6_addr_type(&ifa->addr);

		/* Rule 0: Candidate Source Address (section 4)
		/* Rule 0:
		* - Tentative Address (RFC2462 section 5.4)
		* - A tentative address is not considered
		* "assigned to an interface" in the traditional
		* sense.
		* - Candidate Source Address (section 4)
		* - In any case, anycast addresses, multicast
		* addresses, and the unspecified address MUST
		* NOT be included in a candidate set.
		*/
		if (ifa->flags & IFA_F_TENTATIVE)
		continue;
		if (unlikely(score.addr_type == IPV6_ADDR_ANY \|\|
		score.addr_type & IPV6_ADDR_MULTICAST)) {
		LIMIT_NETDEBUG(KERN_DEBUG
		@@ -1216,10 +1228,8 @@ int ipv6_rcv_saddr_equal(const struct sock sk, const struct sock sk2)

		/* Gets referenced address, destroys ifaddr */

		void addrconf_dad_failure(struct inet6_ifaddr *ifp)
		void addrconf_dad_stop(struct inet6_ifaddr *ifp)
		{
		if (net_ratelimit())
		printk(KERN_INFO "%s: duplicate address detected!\n", ifp->idev->dev->name);
		if (ifp->flags&IFA_F_PERMANENT) {
		spin_lock_bh(&ifp->lock);
		addrconf_del_timer(ifp);
		@@ -1245,6 +1255,12 @@ void addrconf_dad_failure(struct inet6_ifaddr *ifp)
		ipv6_del_addr(ifp);
		}

		void addrconf_dad_failure(struct inet6_ifaddr *ifp)
		{
		if (net_ratelimit())
		printk(KERN_INFO "%s: duplicate address detected!\n", ifp->idev->dev->name);
		addrconf_dad_stop(ifp);
		}

		/* Join to solicited addr multicast group. */

		@@ -2134,9 +2150,42 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
		{
		struct net_device dev = (struct net_device ) data;
		struct inet6_dev *idev = __in6_dev_get(dev);
		int run_pending = 0;

		switch(event) {
		case NETDEV_UP:
		case NETDEV_CHANGE:
		if (event == NETDEV_UP) {
		if (!netif_carrier_ok(dev)) {
		/* device is not ready yet. */
		printk(KERN_INFO
		"ADDRCONF(NETDEV_UP): %s: "
		"link is not ready\n",
		dev->name);
		break;
		}
		} else {
		if (!netif_carrier_ok(dev)) {
		/* device is still not ready. */
		break;
		}

		if (idev) {
		if (idev->if_flags & IF_READY) {
		/* device is already configured. */
		break;
		}
		idev->if_flags \|= IF_READY;
		}

		printk(KERN_INFO
		"ADDRCONF(NETDEV_CHANGE): %s: "
		"link becomes ready\n",
		dev->name);

		run_pending = 1;
		}

		switch(dev->type) {
		case ARPHRD_SIT:
		addrconf_sit_config(dev);
		@@ -2153,6 +2202,9 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
		break;
		};
		if (idev) {
		if (run_pending)
		addrconf_dad_run(idev);

		/* If the MTU changed during the interface down, when the
		interface up, the changed MTU must be reflected in the
		idev as well as routers.
		@@ -2187,8 +2239,7 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
		*/
		addrconf_ifdown(dev, event != NETDEV_DOWN);
		break;
		case NETDEV_CHANGE:
		break;

		case NETDEV_CHANGENAME:
		#ifdef CONFIG_SYSCTL
		if (idev) {
		@@ -2269,7 +2320,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)

		/* Step 3: clear flags for stateless addrconf */
		if (how != 1)
		idev->if_flags &= ~(IF_RS_SENT\|IF_RA_RCVD);
		idev->if_flags &= ~(IF_RS_SENT\|IF_RA_RCVD\|IF_READY);

		/* Step 4: clear address list */
		#ifdef CONFIG_IPV6_PRIVACY
		@@ -2378,11 +2429,20 @@ out:
		/*
		* Duplicate Address Detection
		*/
		static void addrconf_dad_kick(struct inet6_ifaddr *ifp)
		{
		unsigned long rand_num;
		struct inet6_dev *idev = ifp->idev;

		rand_num = net_random() % (idev->cnf.rtr_solicit_delay ? : 1);
		ifp->probes = idev->cnf.dad_transmits;
		addrconf_mod_timer(ifp, AC_DAD, rand_num);
		}

		static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
		{
		struct inet6_dev *idev = ifp->idev;
		struct net_device *dev = idev->dev;
		unsigned long rand_num;

		addrconf_join_solict(dev, &ifp->addr);

		@@ -2391,7 +2451,6 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
		flags);

		net_srandom(ifp->addr.s6_addr32[3]);
		rand_num = net_random() % (idev->cnf.rtr_solicit_delay ? : 1);

		read_lock_bh(&idev->lock);
		if (ifp->dead)
		@@ -2408,8 +2467,17 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags)
		return;
		}

		ifp->probes = idev->cnf.dad_transmits;
		addrconf_mod_timer(ifp, AC_DAD, rand_num);
		if (idev->if_flags & IF_READY)
		addrconf_dad_kick(ifp);
		else {
		/*
		* If the defice is not ready:
		* - keep it tentative if it is a permanent address.
		* - otherwise, kill it.
		*/
		in6_ifa_hold(ifp);
		addrconf_dad_stop(ifp);
		}

		spin_unlock_bh(&ifp->lock);
		out:
		@@ -2493,6 +2561,22 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
		}
		}

		static void addrconf_dad_run(struct inet6_dev *idev) {
		struct inet6_ifaddr *ifp;

		read_lock_bh(&idev->lock);
		for (ifp = idev->addr_list; ifp; ifp = ifp->if_next) {
		spin_lock_bh(&ifp->lock);
		if (!(ifp->flags & IFA_F_TENTATIVE)) {
		spin_unlock_bh(&ifp->lock);
		continue;
		}
		spin_unlock_bh(&ifp->lock);
		addrconf_dad_kick(ifp);
		}
		read_unlock_bh(&idev->lock);
		}

		#ifdef CONFIG_PROC_FS
		struct if6_iter_state {
		int bucket;

net/ipv6/icmp.c

+14 −2

Original line number	Diff line number	Diff line
		@@ -328,8 +328,10 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
		iif = skb->dev->ifindex;

		/*
		* Must not send if we know that source is Anycast also.
		* for now we don't know that.
		* Must not send error if the source does not uniquely
		* identify a single node (RFC2463 Section 2.4).
		* We check unspecified / multicast addresses here,
		* and anycast addresses will be checked later.
		*/
		if ((addr_type == IPV6_ADDR_ANY) \|\| (addr_type & IPV6_ADDR_MULTICAST)) {
		LIMIT_NETDEBUG(KERN_DEBUG "icmpv6_send: addr_any/mcast source\n");
		@@ -373,6 +375,16 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
		err = ip6_dst_lookup(sk, &dst, &fl);
		if (err)
		goto out;

		/*
		* We won't send icmp if the destination is known
		* anycast.
		*/
		if (((struct rt6_info *)dst)->rt6i_flags & RTF_ANYCAST) {
		LIMIT_NETDEBUG(KERN_DEBUG "icmpv6_send: acast source\n");
		goto out_dst_release;
		}

		if ((err = xfrm_lookup(&dst, &fl, sk, 0)) < 0)
		goto out;

net/ipv6/route.c

+9 −4

Original line number	Diff line number	Diff line
		@@ -413,11 +413,14 @@ static struct rt6_info rt6_cow(struct rt6_info ort, struct in6_addr *daddr,
		rt = ip6_rt_copy(ort);

		if (rt) {
		ipv6_addr_copy(&rt->rt6i_dst.addr, daddr);

		if (!(rt->rt6i_flags&RTF_GATEWAY))
		if (!(rt->rt6i_flags&RTF_GATEWAY)) {
		if (rt->rt6i_dst.plen != 128 &&
		ipv6_addr_equal(&rt->rt6i_dst.addr, daddr))
		rt->rt6i_flags \|= RTF_ANYCAST;
		ipv6_addr_copy(&rt->rt6i_gateway, daddr);
		}

		ipv6_addr_copy(&rt->rt6i_dst.addr, daddr);
		rt->rt6i_dst.plen = 128;
		rt->rt6i_flags \|= RTF_CACHE;
		rt->u.dst.flags \|= DST_HOST;
		@@ -1413,7 +1416,9 @@ struct rt6_info addrconf_dst_alloc(struct inet6_dev idev,
		rt->u.dst.obsolete = -1;

		rt->rt6i_flags = RTF_UP \| RTF_NONEXTHOP;
		if (!anycast)
		if (anycast)
		rt->rt6i_flags \|= RTF_ANYCAST;
		else
		rt->rt6i_flags \|= RTF_LOCAL;
		rt->rt6i_nexthop = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_gateway);
		if (rt->rt6i_nexthop == NULL) {