Merge nuts.ninka.net:/home/davem/src/BK/network-2.5

into nuts.ninka.net:/home/davem/src/BK/net-2.5

MAINTAINERS

@@ -1632,8 +1632,8 @@ L:	linux-scsi@vger.kernel.org
 S:	Maintained
 
 SCTP PROTOCOL
-P: Jon Grimm
-M: jgrimm2@us.ibm.com
+P: Sridhar Samudrala
+M: sri@us.ibm.com
 L: lksctp-developers@lists.sourceforge.net
 S: Supported
 

drivers/net/tg3.c

@@ -148,6 +148,8 @@ static struct pci_device_id tg3_pci_tbl[] __devinitdata = {
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
 	{ PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
+	{ PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1001,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
 	{ PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC9100,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
 	{ 0, }

drivers/pci/pci.ids

@@ -5832,6 +5832,7 @@
 1737  Linksys
 173b  Altima (nee Broadcom)
 	03e8  AC1000 Gigabit Ethernet
+	03e9  AC1001 Gigabit Ethernet
 	03ea  AC9100 Gigabit Ethernet
 1743  Peppercon AG
 	8139  ROL/F-100 Fast Ethernet Adapter with ROL

include/linux/ipv6_route.h

@@ -16,6 +16,7 @@
 #define RTF_DEFAULT	0x00010000	/* default - learned via ND	*/
 #define RTF_ALLONLINK	0x00020000	/* fallback, no routers on link	*/
 #define RTF_ADDRCONF	0x00040000	/* addrconf route - RA		*/
+#define RTF_PREFIX_RT	0x00080000	/* A prefix only route - RA	*/
 
 #define RTF_NONEXTHOP	0x00200000	/* route with no nexthop	*/
 #define RTF_EXPIRES	0x00400000

include/linux/netfilter_bridge/ebtables.h

@@ -33,6 +33,23 @@ struct ebt_counter
 	uint64_t bcnt;
 };
 
+struct ebt_replace
+{
+	char name[EBT_TABLE_MAXNAMELEN];
+	unsigned int valid_hooks;
+	/* nr of rules in the table */
+	unsigned int nentries;
+	/* total size of the entries */
+	unsigned int entries_size;
+	/* start of the chains */
+	struct ebt_entries *hook_entry[NF_BR_NUMHOOKS];
+	/* nr of counters userspace expects back */
+	unsigned int num_counters;
+	/* where the kernel will put the old counters */
+	struct ebt_counter *counters;
+	char *entries;
+};
+
 struct ebt_entries {
 	/* this field is always set to zero
 	 * See EBT_ENTRY_OR_ENTRIES.
@@ -47,7 +64,7 @@ struct ebt_entries {
 	/* nr. of entries */
 	unsigned int nentries;
 	/* entry list */
-	char data[0];
+	char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
 };
 
 /* used for the bitmask of struct ebt_entry */
@@ -87,7 +104,7 @@ struct ebt_entry_match
 	} u;
 	/* size of data */
 	unsigned int match_size;
-	unsigned char data[0];
+	unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
 };
 
 struct ebt_entry_watcher
@@ -98,7 +115,7 @@ struct ebt_entry_watcher
 	} u;
 	/* size of data */
 	unsigned int watcher_size;
-	unsigned char data[0];
+	unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
 };
 
 struct ebt_entry_target
@@ -109,7 +126,7 @@ struct ebt_entry_target
 	} u;
 	/* size of data */
 	unsigned int target_size;
-	unsigned char data[0];
+	unsigned char data[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
 };
 
 #define EBT_STANDARD_TARGET "standard"
@@ -143,24 +160,7 @@ struct ebt_entry {
 	unsigned int target_offset;
 	/* sizeof ebt_entry + matches + watchers + target */
 	unsigned int next_offset;
-	unsigned char elems[0];
-};
-
-struct ebt_replace
-{
-	char name[EBT_TABLE_MAXNAMELEN];
-	unsigned int valid_hooks;
-	/* nr of rules in the table */
-	unsigned int nentries;
-	/* total size of the entries */
-	unsigned int entries_size;
-	/* start of the chains */
-	struct ebt_entries *hook_entry[NF_BR_NUMHOOKS];
-	/* nr of counters userspace expects back */
-	unsigned int num_counters;
-	/* where the kernel will put the old counters */
-	struct ebt_counter *counters;
-	char *entries;
+	unsigned char elems[0] __attribute__ ((aligned (__alignof__(struct ebt_replace))));
 };
 
 /* {g,s}etsockopt numbers */
@@ -263,6 +263,8 @@ struct ebt_table
 	struct module *me;
 };
 
+#define EBT_ALIGN(s) (((s) + (__alignof__(struct ebt_replace)-1)) & \
+		     ~(__alignof__(struct ebt_replace)-1))
 extern int ebt_register_table(struct ebt_table *table);
 extern void ebt_unregister_table(struct ebt_table *table);
 extern int ebt_register_match(struct ebt_match *match);

include/linux/netfilter_ipv4/ipt_REJECT.h

@@ -9,7 +9,8 @@ enum ipt_reject_with {
 	IPT_ICMP_ECHOREPLY,
 	IPT_ICMP_NET_PROHIBITED,
 	IPT_ICMP_HOST_PROHIBITED,
-	IPT_TCP_RESET
+	IPT_TCP_RESET,
+	IPT_ICMP_ADMIN_PROHIBITED
 };
 
 struct ipt_reject_info {

include/linux/pci_ids.h

@@ -1757,6 +1757,7 @@
 
 #define PCI_VENDOR_ID_ALTIMA		0x173b
 #define PCI_DEVICE_ID_ALTIMA_AC1000	0x03e8
+#define PCI_DEVICE_ID_ALTIMA_AC1000	0x03e9
 #define PCI_DEVICE_ID_ALTIMA_AC9100	0x03ea
 
 #define PCI_VENDOR_ID_SYMPHONY		0x1c1c

include/linux/rtnetlink.h

@@ -168,6 +168,7 @@ enum rt_scope_t
 #define RTM_F_NOTIFY		0x100	/* Notify user of route change	*/
 #define RTM_F_CLONED		0x200	/* This route is cloned		*/
 #define RTM_F_EQUALIZE		0x400	/* Multipath equalizer: NI	*/
+#define RTM_F_PREFIX		0x800	/* Prefix addresses		*/
 
 /* Reserved table identifiers */
 
@@ -458,6 +459,40 @@ struct ifinfomsg
 	unsigned	ifi_change;		/* IFF_* change mask */
 };
 
+/* The struct should be in sync with struct net_device_stats */
+struct rtnl_link_stats
+{
+	__u32	rx_packets;		/* total packets received	*/
+	__u32	tx_packets;		/* total packets transmitted	*/
+	__u32	rx_bytes;		/* total bytes received 	*/
+	__u32	tx_bytes;		/* total bytes transmitted	*/
+	__u32	rx_errors;		/* bad packets received		*/
+	__u32	tx_errors;		/* packet transmit problems	*/
+	__u32	rx_dropped;		/* no space in linux buffers	*/
+	__u32	tx_dropped;		/* no space available in linux	*/
+	__u32	multicast;		/* multicast packets received	*/
+	__u32	collisions;
+
+	/* detailed rx_errors: */
+	__u32	rx_length_errors;
+	__u32	rx_over_errors;		/* receiver ring buff overflow	*/
+	__u32	rx_crc_errors;		/* recved pkt with crc error	*/
+	__u32	rx_frame_errors;	/* recv'd frame alignment error */
+	__u32	rx_fifo_errors;		/* recv'r fifo overrun		*/
+	__u32	rx_missed_errors;	/* receiver missed packet	*/
+
+	/* detailed tx_errors */
+	__u32	tx_aborted_errors;
+	__u32	tx_carrier_errors;
+	__u32	tx_fifo_errors;
+	__u32	tx_heartbeat_errors;
+	__u32	tx_window_errors;
+	
+	/* for cslip etc */
+	__u32	rx_compressed;
+	__u32	tx_compressed;
+};
+
 enum
 {
 	IFLA_UNSPEC,
@@ -599,6 +634,22 @@ extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const voi
 ({ if (skb_tailroom(skb) < (int)RTA_SPACE(attrlen)) goto rtattr_failure; \
    __rta_fill(skb, attrtype, attrlen, data); })
 
+static inline struct rtattr *
+__rta_reserve(struct sk_buff *skb, int attrtype, int attrlen)
+{
+	struct rtattr *rta;
+	int size = RTA_LENGTH(attrlen);
+
+	rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size));
+	rta->rta_type = attrtype;
+	rta->rta_len = size;
+	return rta;
+}
+
+#define __RTA_PUT(skb, attrtype, attrlen) \
+({ if (skb_tailroom(skb) < (int)RTA_SPACE(attrlen)) goto rtattr_failure; \
+   __rta_reserve(skb, attrtype, attrlen); })
+
 extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change);
 
 extern struct semaphore rtnl_sem;

net/atm/lec.c

@@ -1031,7 +1031,7 @@ static void lane2_associate_ind (struct net_device *dev, u8 *mac_addr,
 #define LEC_ARP_REFRESH_INTERVAL (3*HZ)
 
 static void lec_arp_check_expire(unsigned long data);
-static __inline__ void lec_arp_expire_arp(unsigned long data);
+static void lec_arp_expire_arp(unsigned long data);
 void dump_arp_table(struct lec_priv *priv);
 
 /* 
@@ -1371,7 +1371,7 @@ lec_arp_destroy(struct lec_priv *priv)
         struct lec_arp_table *entry, *next;
         int i;
 
-        del_timer(&priv->lec_arp_timer);
+        del_timer_sync(&priv->lec_arp_timer);
         
         /*
          * Remove all entries
@@ -1386,7 +1386,7 @@ lec_arp_destroy(struct lec_priv *priv)
         entry = priv->lec_arp_empty_ones;
         while(entry) {
                 next = entry->next;
-                del_timer(&entry->timer);
+                del_timer_sync(&entry->timer);
                 lec_arp_clear_vccs(entry);
                 kfree(entry);
                 entry = next;
@@ -1395,7 +1395,7 @@ lec_arp_destroy(struct lec_priv *priv)
         entry = priv->lec_no_forward;
         while(entry) {
                 next = entry->next;
-                del_timer(&entry->timer);
+                del_timer_sync(&entry->timer);
                 lec_arp_clear_vccs(entry);
                 kfree(entry);
                 entry = next;
@@ -1404,7 +1404,7 @@ lec_arp_destroy(struct lec_priv *priv)
         entry = priv->mcast_fwds;
         while(entry) {
                 next = entry->next;
-                del_timer(&entry->timer);
+                /* No timer, LANEv2 7.1.20 and 2.3.5.3 */
                 lec_arp_clear_vccs(entry);
                 kfree(entry);
                 entry = next;
@@ -1478,8 +1478,6 @@ lec_arp_expire_arp(unsigned long data)
 
         entry = (struct lec_arp_table *)data;
 
-        del_timer(&entry->timer);
-
         DPRINTK("lec_arp_expire_arp\n");
         if (entry->status == ESI_ARP_PENDING) {
                 if (entry->no_tries <= entry->priv->max_retry_count) {
@@ -1489,8 +1487,7 @@ lec_arp_expire_arp(unsigned long data)
                                 send_to_lecd(entry->priv, l_arp_xmt, entry->mac_addr, NULL, NULL);
                         entry->no_tries++;
                 }
-                entry->timer.expires = jiffies + (1*HZ);
-                add_timer(&entry->timer);
+                mod_timer(&entry->timer, jiffies + (1*HZ));
         }
 }
 
@@ -1562,8 +1559,6 @@ lec_arp_check_expire(unsigned long data)
         unsigned long time_to_check;
         int i;
 
-        del_timer(&priv->lec_arp_timer);
-
         DPRINTK("lec_arp_check_expire %p,%d\n",priv,
                 atomic_read(&priv->lec_arp_users));
         DPRINTK("expire: eo:%p nf:%p\n",priv->lec_arp_empty_ones,
@@ -1621,8 +1616,8 @@ lec_arp_check_expire(unsigned long data)
                 }
                 lec_arp_put(priv);
         }
-        priv->lec_arp_timer.expires = jiffies + LEC_ARP_REFRESH_INTERVAL;
-        add_timer(&priv->lec_arp_timer);
+
+        mod_timer(&priv->lec_arp_timer, jiffies + LEC_ARP_REFRESH_INTERVAL);
 }
 /*
  * Try to find vcc where mac_address is attached.

net/bridge/br_device.c

@@ -110,23 +110,38 @@ static int br_dev_accept_fastpath(struct net_device *dev, struct dst_entry *dst)
 	return -1;
 }
 
+/* convert later to direct kfree */
+static void br_dev_free(struct net_device *dev)
+{
+	struct net_bridge *br = dev->priv;
+
+	WARN_ON(!list_empty(&br->port_list));
+	WARN_ON(!list_empty(&br->age_list));
+
+	BUG_ON(timer_pending(&br->hello_timer));
+	BUG_ON(timer_pending(&br->tcn_timer));
+	BUG_ON(timer_pending(&br->topology_change_timer));
+	BUG_ON(timer_pending(&br->gc_timer));
+
+	kfree(dev);
+}
 
 void br_dev_setup(struct net_device *dev)
 {
 	memset(dev->dev_addr, 0, ETH_ALEN);
 
+	ether_setup(dev);
+
 	dev->do_ioctl = br_dev_do_ioctl;
 	dev->get_stats = br_dev_get_stats;
 	dev->hard_start_xmit = br_dev_xmit;
 	dev->open = br_dev_open;
 	dev->set_multicast_list = br_dev_set_multicast_list;
-	dev->destructor = (void (*)(struct net_device *))kfree;
+	dev->destructor = br_dev_free;
 	SET_MODULE_OWNER(dev);
 	dev->stop = br_dev_stop;
 	dev->accept_fastpath = br_dev_accept_fastpath;
 	dev->tx_queue_len = 0;
 	dev->set_mac_address = NULL;
 	dev->priv_flags = IFF_EBRIDGE;
-
-	ether_setup(dev);
 }

net/bridge/br_if.c

@@ -41,6 +41,13 @@ static int br_initial_port_cost(struct net_device *dev)
 static void destroy_nbp(void *arg)
 {
 	struct net_bridge_port *p = arg;
+
+	p->dev->br_port = NULL;
+
+	BUG_ON(timer_pending(&p->message_age_timer));
+	BUG_ON(timer_pending(&p->forward_delay_timer));
+	BUG_ON(timer_pending(&p->hold_timer));
+
 	dev_put(p->dev);
 	kfree(p);
 }
@@ -53,16 +60,19 @@ static void del_nbp(struct net_bridge_port *p)
 	br_stp_disable_port(p);
 
 	dev_set_promiscuity(dev, -1);
-	dev->br_port = NULL;
 
 	list_del_rcu(&p->list);
 
 	br_fdb_delete_by_port(p->br, p);
 
+	del_timer(&p->message_age_timer);
+	del_timer(&p->forward_delay_timer);
+	del_timer(&p->hold_timer);
+	
 	call_rcu(&p->rcu, destroy_nbp, p);
 }
 
-static void del_ifs(struct net_bridge *br)
+static void del_br(struct net_bridge *br)
 {
 	struct list_head *p, *n;
 
@@ -71,6 +81,10 @@ static void del_ifs(struct net_bridge *br)
 		del_nbp(list_entry(p, struct net_bridge_port, list));
 	}
 	spin_unlock_bh(&br->lock);
+
+	del_timer_sync(&br->gc_timer);
+
+ 	unregister_netdevice(br->dev);
 }
 
 static struct net_bridge *new_nb(const char *name)
@@ -182,15 +196,14 @@ int br_del_bridge(const char *name)
 		ret = -EBUSY;
 	} 
 
-	else {
-		del_ifs((struct net_bridge *) dev->priv);
-		unregister_netdevice(dev);
-	}
+	else 
+		del_br(dev->priv);
 
 	rtnl_unlock();
 	return ret;
 }
 
+/* called under bridge lock */
 int br_add_if(struct net_bridge *br, struct net_device *dev)
 {
 	struct net_bridge_port *p;
@@ -205,7 +218,6 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
 		return -ELOOP;
 
 	dev_hold(dev);
-	spin_lock_bh(&br->lock);
 	if ((p = new_nbp(br, dev)) == NULL) {
 		spin_unlock_bh(&br->lock);
 		dev_put(dev);
@@ -218,26 +230,21 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
 	br_fdb_insert(br, p, dev->dev_addr, 1);
 	if ((br->dev->flags & IFF_UP) && (dev->flags & IFF_UP))
 		br_stp_enable_port(p);
-	spin_unlock_bh(&br->lock);
 
 	return 0;
 }
 
+/* called under bridge lock */
 int br_del_if(struct net_bridge *br, struct net_device *dev)
 {
 	struct net_bridge_port *p;
-	int retval = 0;
 
-	spin_lock_bh(&br->lock);
 	if ((p = dev->br_port) == NULL || p->br != br)
-		retval = -EINVAL;
-	else {
-		del_nbp(p);
-		br_stp_recalculate_bridge_id(br);
-	}
-	spin_unlock_bh(&br->lock);
+		return -EINVAL;
 
-	return retval;
+	del_nbp(p);
+	br_stp_recalculate_bridge_id(br);
+	return 0;
 }
 
 int br_get_bridge_ifindices(int *indices, int num)
@@ -274,13 +281,8 @@ void __exit br_cleanup_bridges(void)
 	rtnl_lock();
 	for (dev = dev_base; dev; dev = nxt) {
 		nxt = dev->next;
-		if (dev->priv_flags & IFF_EBRIDGE) {
-			pr_debug("cleanup %s\n", dev->name);
-
-			del_ifs((struct net_bridge *) dev->priv);
-			
-			unregister_netdevice(dev);
-		}
+		if (dev->priv_flags & IFF_EBRIDGE)
+			del_br(dev->priv);
 	}
 	rtnl_unlock();
 

net/bridge/br_ioctl.c

@@ -59,10 +59,12 @@ static int br_ioctl_device(struct net_bridge *br,
 		if (dev == NULL)
 			return -EINVAL;
 
+		spin_lock_bh(&br->lock);
 		if (cmd == BRCTL_ADD_IF)
 			ret = br_add_if(br, dev);
 		else
 			ret = br_del_if(br, dev);
+		spin_unlock_bh(&br->lock);
 
 		dev_put(dev);
 		return ret;

net/bridge/br_notify.c

@@ -38,39 +38,27 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
 
 	br = p->br;
 
+	spin_lock_bh(&br->lock);
 	switch (event) 
 	{
 	case NETDEV_CHANGEADDR:
-		spin_lock_bh(&br->lock);
 		br_fdb_changeaddr(p, dev->dev_addr);
 		br_stp_recalculate_bridge_id(br);
-		spin_unlock_bh(&br->lock);
-		break;
-
-	case NETDEV_GOING_DOWN:
-		/* extend the protocol to send some kind of notification? */
 		break;
 
 	case NETDEV_DOWN:
-		if (br->dev->flags & IFF_UP) {
-			spin_lock_bh(&br->lock);
-			br_stp_disable_port(p);
-			spin_unlock_bh(&br->lock);
-		}
+		br_stp_disable_port(p);
 		break;
 
 	case NETDEV_UP:
-		if (!(br->dev->flags & IFF_UP)) {
-			spin_lock_bh(&br->lock);
-			br_stp_enable_port(p);
-			spin_unlock_bh(&br->lock);
-		}
+		br_stp_enable_port(p);
 		break;
 
 	case NETDEV_UNREGISTER:
 		br_del_if(br, dev);
 		break;
 	}
+	spin_unlock_bh(&br->lock);
 
 	return NOTIFY_DONE;
 }

net/bridge/br_stp.c

@@ -20,7 +20,11 @@
 #include "br_private_stp.h"
 
 static const char *br_port_state_names[] = {
-	"disabled", "learning", "forwarding", "blocking",
+	[BR_STATE_DISABLED] = "disabled", 
+	[BR_STATE_LISTENING] = "listening",
+	[BR_STATE_LEARNING] = "learning", 
+	[BR_STATE_FORWARDING] = "forwarding", 
+	[BR_STATE_BLOCKING] = "blocking",
 };
 
 void br_log_state(const struct net_bridge_port *p)
@@ -289,22 +293,20 @@ static inline void br_topology_change_acknowledged(struct net_bridge *br)
 /* called under bridge lock */
 void br_topology_change_detection(struct net_bridge *br)
 {
-	if (!(br->dev->flags & IFF_UP))
-		return;
+	int isroot = br_is_root_bridge(br);
+
+	pr_info("%s: topology change detected, %s\n", br->dev->name,
+		isroot ? "propgating" : "sending tcn bpdu");
 
-	pr_info("%s: topology change detected", br->dev->name);
-	if (br_is_root_bridge(br)) {
-		printk(", propagating");
+	if (isroot) {
 		br->topology_change = 1;
 		mod_timer(&br->topology_change_timer, jiffies
 			  + br->bridge_forward_delay + br->bridge_max_age);
 	} else if (!br->topology_change_detected) {
-		printk(", sending tcn bpdu");
 		br_transmit_tcn(br);
 		mod_timer(&br->tcn_timer, jiffies + br->bridge_hello_time);
 	}
 
-	printk("\n");
 	br->topology_change_detected = 1;
 }
 

net/bridge/br_stp_if.c

@@ -43,8 +43,7 @@ void br_stp_enable_bridge(struct net_bridge *br)
 	struct net_bridge_port *p;
 
 	spin_lock_bh(&br->lock);
-	br->hello_timer.expires = jiffies + br->hello_time;
-	add_timer(&br->hello_timer);
+	mod_timer(&br->hello_timer, jiffies + br->hello_time);
 	br_config_bpdu_generation(br);
 
 	list_for_each_entry(p, &br->port_list, list) {
@@ -74,8 +73,6 @@ void br_stp_disable_bridge(struct net_bridge *br)
 	del_timer_sync(&br->hello_timer);
 	del_timer_sync(&br->topology_change_timer);
 	del_timer_sync(&br->tcn_timer);
-	del_timer_sync(&br->gc_timer);
-
 }
 
 /* called under bridge lock */

net/bridge/br_stp_timer.c

@@ -43,8 +43,7 @@ static void br_hello_timer_expired(unsigned long arg)
 	if (br->dev->flags & IFF_UP) {
 		br_config_bpdu_generation(br);
 
-		br->hello_timer.expires = jiffies + br->hello_time;
-		add_timer(&br->hello_timer);
+		mod_timer(&br->hello_timer, jiffies + br->hello_time);
 	}
 	spin_unlock_bh(&br->lock);
 }
@@ -73,6 +72,8 @@ static void br_message_age_timer_expired(unsigned long arg)
 	 * check is redundant. I'm leaving it in for now, though.
 	 */
 	spin_lock_bh(&br->lock);
+	if (p->state == BR_STATE_DISABLED)
+		goto unlock;
 	was_root = br_is_root_bridge(br);
 
 	br_become_designated_port(p);
@@ -80,6 +81,7 @@ static void br_message_age_timer_expired(unsigned long arg)
 	br_port_state_selection(br);
 	if (br_is_root_bridge(br) && !was_root)
 		br_become_root_bridge(br);
+ unlock:
 	spin_unlock_bh(&br->lock);
 }
 
@@ -93,8 +95,8 @@ static void br_forward_delay_timer_expired(unsigned long arg)
 	spin_lock_bh(&br->lock);
 	if (p->state == BR_STATE_LISTENING) {
 		p->state = BR_STATE_LEARNING;
-		p->forward_delay_timer.expires = jiffies + br->forward_delay;
-		add_timer(&p->forward_delay_timer);
+		mod_timer(&p->forward_delay_timer,
+			  jiffies + br->forward_delay);
 	} else if (p->state == BR_STATE_LEARNING) {
 		p->state = BR_STATE_FORWARDING;
 		if (br_is_designated_for_some_port(br))
@@ -113,8 +115,7 @@ static void br_tcn_timer_expired(unsigned long arg)
 	if (br->dev->flags & IFF_UP) {
 		br_transmit_tcn(br);
 	
-		br->tcn_timer.expires = jiffies + br->bridge_hello_time;
-		add_timer(&br->tcn_timer);
+		mod_timer(&br->tcn_timer,jiffies + br->bridge_hello_time);
 	}
 	spin_unlock_bh(&br->lock);
 }

net/bridge/netfilter/ebt_arp.c

@@ -99,7 +99,7 @@ static int ebt_arp_check(const char *tablename, unsigned int hookmask,
 {
 	struct ebt_arp_info *info = (struct ebt_arp_info *)data;
 
-	if (datalen != sizeof(struct ebt_arp_info))
+	if (datalen != EBT_ALIGN(sizeof(struct ebt_arp_info)))
 		return -EINVAL;
 	if ((e->ethproto != __constant_htons(ETH_P_ARP) &&
 	   e->ethproto != __constant_htons(ETH_P_RARP)) ||

net/bridge/netfilter/ebt_dnat.c

@@ -47,7 +47,7 @@ static int ebt_target_dnat_check(const char *tablename, unsigned int hookmask,
 	   (hookmask & ~((1 << NF_BR_PRE_ROUTING) | (1 << NF_BR_LOCAL_OUT)))) &&
 	   (strcmp(tablename, "broute") || hookmask & ~(1 << NF_BR_BROUTING)) )
 		return -EINVAL;
-	if (datalen != sizeof(struct ebt_nat_info))
+	if (datalen != EBT_ALIGN(sizeof(struct ebt_nat_info)))
 		return -EINVAL;
 	if (INVALID_TARGET)
 		return -EINVAL;

net/bridge/netfilter/ebt_ip.c

@@ -75,7 +75,7 @@ static int ebt_ip_check(const char *tablename, unsigned int hookmask,
 {
 	struct ebt_ip_info *info = (struct ebt_ip_info *)data;
 
-	if (datalen != sizeof(struct ebt_ip_info))
+	if (datalen != EBT_ALIGN(sizeof(struct ebt_ip_info)))
 		return -EINVAL;
 	if (e->ethproto != __constant_htons(ETH_P_IP) ||
 	   e->invflags & EBT_IPROTO)

net/bridge/netfilter/ebt_log.c

@@ -22,7 +22,7 @@ static int ebt_log_check(const char *tablename, unsigned int hookmask,
 {
 	struct ebt_log_info *info = (struct ebt_log_info *)data;
 
-	if (datalen != sizeof(struct ebt_log_info))
+	if (datalen != EBT_ALIGN(sizeof(struct ebt_log_info)))
 		return -EINVAL;
 	if (info->bitmask & ~EBT_LOG_MASK)
 		return -EINVAL;

net/bridge/netfilter/ebt_mark.c

@@ -35,7 +35,7 @@ static int ebt_target_mark_check(const char *tablename, unsigned int hookmask,
 {
 	struct ebt_mark_t_info *info = (struct ebt_mark_t_info *)data;
 
-	if (datalen != sizeof(struct ebt_mark_t_info))
+	if (datalen != EBT_ALIGN(sizeof(struct ebt_mark_t_info)))
 		return -EINVAL;
 	if (BASE_CHAIN && info->target == EBT_RETURN)
 		return -EINVAL;

net/bridge/netfilter/ebt_mark_m.c

@@ -28,7 +28,7 @@ static int ebt_mark_check(const char *tablename, unsigned int hookmask,
 {
         struct ebt_mark_m_info *info = (struct ebt_mark_m_info *) data;
 
-	if (datalen != sizeof(struct ebt_mark_m_info))
+	if (datalen != EBT_ALIGN(sizeof(struct ebt_mark_m_info)))
 		return -EINVAL;
 	if (info->bitmask & ~EBT_MARK_MASK)
 		return -EINVAL;

net/bridge/netfilter/ebt_pkttype.c

@@ -28,7 +28,7 @@ static int ebt_pkttype_check(const char *tablename, unsigned int hookmask,
 {
 	struct ebt_pkttype_info *info = (struct ebt_pkttype_info *)data;
 
-	if (datalen != sizeof(struct ebt_pkttype_info))
+	if (datalen != EBT_ALIGN(sizeof(struct ebt_pkttype_info)))
 		return -EINVAL;
 	if (info->invert != 0 && info->invert != 1)
 		return -EINVAL;

net/bridge/netfilter/ebt_redirect.c

@@ -47,7 +47,7 @@ static int ebt_target_redirect_check(const char *tablename, unsigned int hookmas
 {
 	struct ebt_redirect_info *info = (struct ebt_redirect_info *)data;
 
-	if (datalen != sizeof(struct ebt_redirect_info))
+	if (datalen != EBT_ALIGN(sizeof(struct ebt_redirect_info)))
 		return -EINVAL;
 	if (BASE_CHAIN && info->target == EBT_RETURN)
 		return -EINVAL;

net/bridge/netfilter/ebt_snat.c

@@ -40,7 +40,7 @@ static int ebt_target_snat_check(const char *tablename, unsigned int hookmask,
 {
 	struct ebt_nat_info *info = (struct ebt_nat_info *) data;
 
-	if (datalen != sizeof(struct ebt_nat_info))
+	if (datalen != EBT_ALIGN(sizeof(struct ebt_nat_info)))
 		return -EINVAL;
 	if (BASE_CHAIN && info->target == EBT_RETURN)
 		return -EINVAL;

net/bridge/netfilter/ebt_stp.c

@@ -150,7 +150,7 @@ static int ebt_stp_check(const char *tablename, unsigned int hookmask,
    const struct ebt_entry *e, void *data, unsigned int datalen)
 {
 	struct ebt_stp_info *info = (struct ebt_stp_info *)data;
-	int len = sizeof(struct ebt_stp_info);
+	int len = EBT_ALIGN(sizeof(struct ebt_stp_info));
 	uint8_t bridge_ula[6] = { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 };
 	uint8_t msk[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 

net/bridge/netfilter/ebt_vlan.c

@@ -35,7 +35,7 @@ MODULE_DESCRIPTION("802.1Q match module (ebtables extension), v"
 MODULE_LICENSE("GPL");
 
 
-#define DEBUG_MSG(...) if (debug) printk (KERN_DEBUG "ebt_vlan: " __VA_ARGS__)
+#define DEBUG_MSG(args...) if (debug) printk (KERN_DEBUG "ebt_vlan: " args)
 #define INV_FLAG(_inv_flag_) (info->invflags & _inv_flag_) ? "!" : ""
 #define GET_BITMASK(_BIT_MASK_) info->bitmask & _BIT_MASK_
 #define SET_BITMASK(_BIT_MASK_) info->bitmask |= _BIT_MASK_
@@ -94,7 +94,7 @@ ebt_check_vlan(const char *tablename,
 	struct ebt_vlan_info *info = (struct ebt_vlan_info *) data;
 
 	/* Parameters buffer overflow check */
-	if (datalen != sizeof(struct ebt_vlan_info)) {
+	if (datalen != EBT_ALIGN(sizeof(struct ebt_vlan_info))) {
 		DEBUG_MSG
 		    ("passed size %d is not eq to ebt_vlan_info (%Zd)\n",
 		     datalen, sizeof(struct ebt_vlan_info));

net/core/filter.c

@@ -256,10 +256,9 @@ int sk_run_filter(struct sk_buff *skb, struct sock_filter *filter, int flen)
 			k = X + fentry->k;
 			goto load_b;
 		case BPF_LDX|BPF_B|BPF_MSH:
-			k = fentry->k;
-			if (k >= 0 && (unsigned int)k >= len)
+			if (fentry->k >= len)
 				return 0;
-			X = (data[k] & 0xf) << 2;
+			X = (data[fentry->k] & 0xf) << 2;
 			continue;
 		case BPF_LD|BPF_IMM:
 			A = fentry->k;

net/core/net-sysfs.c

@@ -186,7 +186,7 @@ struct netstat_fs_entry {
 
 static ssize_t net_device_stat_show(unsigned long var, char *buf)
 {
-	return sprintf(buf, "%ld\n", var);
+	return sprintf(buf, "%lu\n", var);
 }
 
 /* generate a read-only statistics attribute */

net/core/netfilter.c

@@ -625,66 +625,62 @@ int ip_route_me_harder(struct sk_buff **pskb)
 {
 	struct iphdr *iph = (*pskb)->nh.iph;
 	struct rtable *rt;
-	struct flowi fl = { .nl_u = { .ip4_u =
-				      { .daddr = iph->daddr,
-					.saddr = iph->saddr,
-					.tos = RT_TOS(iph->tos)|RTO_CONN,
-#ifdef CONFIG_IP_ROUTE_FWMARK
-					.fwmark = (*pskb)->nfmark
-#endif
-				      } },
-			    .oif = (*pskb)->sk ? (*pskb)->sk->sk_bound_dev_if : 0,
-			    };
-	struct net_device *dev_src = NULL;
-	int err;
-
-	/* accommodate ip_route_output_slow(), which expects the key src to be
-	   0 or a local address; however some non-standard hacks like
-	   ipt_REJECT.c:send_reset() can cause packets with foreign
-           saddr to be appear on the NF_IP_LOCAL_OUT hook -MB */
-	if(fl.fl4_src && !(dev_src = ip_dev_find(fl.fl4_src)))
-		fl.fl4_src = 0;
-
-	if ((err=ip_route_output_key(&rt, &fl)) != 0) {
-		printk("route_me_harder: ip_route_output_key(dst=%u.%u.%u.%u, src=%u.%u.%u.%u, oif=%d, tos=0x%x, fwmark=0x%lx) error %d\n",
-			NIPQUAD(iph->daddr), NIPQUAD(iph->saddr),
-			(*pskb)->sk ? (*pskb)->sk->sk_bound_dev_if : 0,
-			RT_TOS(iph->tos)|RTO_CONN,
+	struct flowi fl = {};
+	struct dst_entry *odst;
+	unsigned int hh_len;
+
+	/* some non-standard hacks like ipt_REJECT.c:send_reset() can cause
+	 * packets with foreign saddr to appear on the NF_IP_LOCAL_OUT hook.
+	 */
+	if (inet_addr_type(iph->saddr) == RTN_LOCAL) {
+		fl.nl_u.ip4_u.daddr = iph->daddr;
+		fl.nl_u.ip4_u.saddr = iph->saddr;
+		fl.nl_u.ip4_u.tos = RT_TOS(iph->tos);
+		fl.oif = (*pskb)->sk ? (*pskb)->sk->sk_bound_dev_if : 0;
 #ifdef CONFIG_IP_ROUTE_FWMARK
-			(*pskb)->nfmark,
-#else
-			0UL,
+		fl.nl_u.ip4_u.fwmark = (*pskb)->nfmark;
 #endif
-			err);
-		goto out;
-	}
+		if (ip_route_output_key(&rt, &fl) != 0)
+			return -1;
 
-	/* Drop old route. */
-	dst_release((*pskb)->dst);
-
-	(*pskb)->dst = &rt->u.dst;
+		/* Drop old route. */
+		dst_release((*pskb)->dst);
+		(*pskb)->dst = &rt->u.dst;
+	} else {
+		/* non-local src, find valid iif to satisfy
+		 * rp-filter when calling ip_route_input. */
+		fl.nl_u.ip4_u.daddr = iph->saddr;
+		if (ip_route_output_key(&rt, &fl) != 0)
+			return -1;
+
+		odst = (*pskb)->dst;
+		if (ip_route_input(*pskb, iph->daddr, iph->saddr,
+				   RT_TOS(iph->tos), rt->u.dst.dev) != 0) {
+			dst_release(&rt->u.dst);
+			return -1;
+		}
+		dst_release(&rt->u.dst);
+		dst_release(odst);
+	}
+	
+	if ((*pskb)->dst->error)
+		return -1;
 
 	/* Change in oif may mean change in hh_len. */
-	if (skb_headroom(*pskb) < (*pskb)->dst->dev->hard_header_len) {
+	hh_len = (*pskb)->dst->dev->hard_header_len;
+	if (skb_headroom(*pskb) < hh_len) {
 		struct sk_buff *nskb;
 
-		nskb = skb_realloc_headroom(*pskb,
-					    (*pskb)->dst->dev->hard_header_len);
-		if (!nskb) {
-			err = -ENOMEM;
-			goto out;
-		}
+		nskb = skb_realloc_headroom(*pskb, hh_len);
+		if (!nskb) 
+			return -1;
 		if ((*pskb)->sk)
 			skb_set_owner_w(nskb, (*pskb)->sk);
 		kfree_skb(*pskb);
 		*pskb = nskb;
 	}
 
-out:
-	if (dev_src)
-		dev_put(dev_src);
-
-	return err;
+	return 0;
 }
 
 int skb_ip_make_writable(struct sk_buff **pskb, unsigned int writable_len)

net/core/pktgen.c

@@ -47,6 +47,9 @@
  * Also moved to /proc/net/pktgen/ 
  * --ro 
  *
+ * Fix refcount off by one if first packet fails, potential null deref, 
+ * memleak 030710- KJP
+ *
  * See Documentation/networking/pktgen.txt for how to use this.
  */
 
@@ -85,9 +88,9 @@
 #define cycles()	((u32)get_cycles())
 
 
-#define VERSION "pktgen version 1.2"
+#define VERSION "pktgen version 1.3"
 static char version[] __initdata = 
-  "pktgen.c: v1.2: Packet Generator for packet performance testing.\n";
+  "pktgen.c: v1.3: Packet Generator for packet performance testing.\n";
 
 /* Used to help with determining the pkts on receive */
 
@@ -611,12 +614,11 @@ static void inject(struct pktgen_info* info)
 				kfree_skb(skb);
 				skb = fill_packet(odev, info);
 				if (skb == NULL) {
-					break;
+					goto out_reldev;
 				}
 				fp++;
 				fp_tmp = 0; /* reset counter */
 			}
-			atomic_inc(&skb->users);
 		}
 
 		nr_frags = skb_shinfo(skb)->nr_frags;
@@ -624,7 +626,11 @@ static void inject(struct pktgen_info* info)
 		spin_lock_bh(&odev->xmit_lock);
 		if (!netif_queue_stopped(odev)) {
 
+			atomic_inc(&skb->users);
+
 			if (odev->hard_start_xmit(skb, odev)) {
+
+				atomic_dec(&skb->users);
 				if (net_ratelimit()) {
 				   printk(KERN_INFO "Hard xmit error\n");
 				}
@@ -729,15 +735,15 @@ static void inject(struct pktgen_info* info)
 			     (unsigned long long) info->errors
 			     );
 	}
-	
+
+	kfree_skb(skb);
+
 out_reldev:
 	if (odev) {
 		dev_put(odev);
 		odev = NULL;
 	}
 
-	/* TODO:  Is this worth printing out (other than for debug?) */
-	printk("fp = %llu\n", (unsigned long long) fp);
 	return;
 
 }
@@ -953,7 +959,8 @@ static int proc_write(struct file *file, const char *user_buffer,
 	if (len < 0)
 		return len;
 	memset(name, 0, sizeof(name));
-	copy_from_user(name, &user_buffer[i], len);
+	if (copy_from_user(name, &user_buffer[i], len))
+		return -EFAULT;
 	i += len;
   
 	max = count -i;
@@ -1083,18 +1090,20 @@ static int proc_write(struct file *file, const char *user_buffer,
 		if (len < 0)
 			return len;
 		memset(info->outdev, 0, sizeof(info->outdev));
-		copy_from_user(info->outdev, &user_buffer[i], len);
+		if (copy_from_user(info->outdev, &user_buffer[i], len))
+			return -EFAULT;
 		i += len;
 		sprintf(result, "OK: odev=%s", info->outdev);
 		return count;
 	}
 	if (!strcmp(name, "flag")) {
 		char f[32];
-		memset(f, 0, 32);
 		len = strn_len(&user_buffer[i], sizeof(f) - 1);
 		if (len < 0)
 			return len;
-		copy_from_user(f, &user_buffer[i], len);
+		memset(f, 0, 32);
+		if (copy_from_user(f, &user_buffer[i], len))
+			return -EFAULT;
 		i += len;
 		if (strcmp(f, "IPSRC_RND") == 0) {
 			info->flags |= F_IPSRC_RND;
@@ -1146,7 +1155,8 @@ static int proc_write(struct file *file, const char *user_buffer,
 		if (len < 0)
 			return len;
 		memset(info->dst_min, 0, sizeof(info->dst_min));
-		copy_from_user(info->dst_min, &user_buffer[i], len);
+		if (copy_from_user(info->dst_min, &user_buffer[i], len))
+			return -EFAULT;
 		if(debug)
 			printk("pg: dst_min set to: %s\n", info->dst_min);
 		i += len;
@@ -1158,7 +1168,8 @@ static int proc_write(struct file *file, const char *user_buffer,
 		if (len < 0)
 			return len;
 		memset(info->dst_max, 0, sizeof(info->dst_max));
-		copy_from_user(info->dst_max, &user_buffer[i], len);
+		if (copy_from_user(info->dst_max, &user_buffer[i], len))
+			return -EFAULT;
 		if(debug)
 			printk("pg: dst_max set to: %s\n", info->dst_max);
 		i += len;
@@ -1170,7 +1181,8 @@ static int proc_write(struct file *file, const char *user_buffer,
 		if (len < 0)
 			return len;
 		memset(info->src_min, 0, sizeof(info->src_min));
-		copy_from_user(info->src_min, &user_buffer[i], len);
+		if (copy_from_user(info->src_min, &user_buffer[i], len))
+			return -EFAULT;
 		if(debug)
 			printk("pg: src_min set to: %s\n", info->src_min);
 		i += len;
@@ -1182,7 +1194,8 @@ static int proc_write(struct file *file, const char *user_buffer,
 		if (len < 0)
 			return len;
 		memset(info->src_max, 0, sizeof(info->src_max));
-		copy_from_user(info->src_max, &user_buffer[i], len);
+		if (copy_from_user(info->src_max, &user_buffer[i], len))
+			return -EFAULT;
 		if(debug)
 			printk("pg: src_max set to: %s\n", info->src_max);
 		i += len;
@@ -1197,7 +1210,8 @@ static int proc_write(struct file *file, const char *user_buffer,
 		if (len < 0)
 			return len;
 		memset(valstr, 0, sizeof(valstr));
-		copy_from_user(valstr, &user_buffer[i], len);
+		if (copy_from_user(valstr, &user_buffer[i], len))
+			return -EFAULT;
 		i += len;
 
 		for(*m = 0;*v && m < info->dst_mac + 6; v++) {
@@ -1229,7 +1243,8 @@ static int proc_write(struct file *file, const char *user_buffer,
 		if (len < 0)
 			return len;
 		memset(valstr, 0, sizeof(valstr));
-		copy_from_user(valstr, &user_buffer[i], len);
+		if (copy_from_user(valstr, &user_buffer[i], len))
+			return -EFAULT;
 		i += len;
 
 		for(*m = 0;*v && m < info->src_mac + 6; v++) {

net/core/rtnetlink.c

@@ -191,9 +191,18 @@ static int rtnetlink_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 	if (dev->master)
 		RTA_PUT(skb, IFLA_MASTER, sizeof(int), &dev->master->ifindex);
 	if (dev->get_stats) {
-		struct net_device_stats *stats = dev->get_stats(dev);
-		if (stats)
-			RTA_PUT(skb, IFLA_STATS, sizeof(*stats), stats);
+		unsigned long *stats = (unsigned long*)dev->get_stats(dev);
+		if (stats) {
+			struct rtattr  *a;
+			__u32	       *s;
+			int		i;
+			int		n = sizeof(struct rtnl_link_stats)/4;
+
+			a = __RTA_PUT(skb, IFLA_STATS, n*4);
+			s = RTA_DATA(a);
+			for (i=0; i<n; i++)
+				s[i] = stats[i];
+		}
 	}
 	nlh->nlmsg_len = skb->tail - b;
 	return skb->len;

net/core/sysctl_net_core.c

@@ -86,7 +86,7 @@ ctl_table core_table[] = {
 	{
 		.ctl_name	= NET_CORE_NO_CONG_THRESH,
 		.procname	= "no_cong_thresh",
-		.data		= &no_cong,
+		.data		= &no_cong_thresh,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
 		.proc_handler	= &proc_dointvec

net/decnet/af_decnet.c

@@ -2308,6 +2308,7 @@ static int dn_socket_seq_open(struct inode *inode, struct file *file)
 }
 
 static struct file_operations dn_socket_seq_fops = {
+	.owner		= THIS_MODULE,
 	.open		= dn_socket_seq_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,

net/decnet/dn_dev.c

@@ -1443,6 +1443,7 @@ static int dn_dev_seq_open(struct inode *inode, struct file *file)
 }
 
 static struct file_operations dn_dev_seq_fops = {
+	.owner	 = THIS_MODULE,
 	.open	 = dn_dev_seq_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,

net/decnet/dn_route.c

@@ -1766,6 +1766,7 @@ static int dn_rt_cache_seq_open(struct inode *inode, struct file *file)
 }
 
 static struct file_operations dn_rt_cache_seq_fops = {
+	.owner	 = THIS_MODULE,
 	.open	 = dn_rt_cache_seq_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,

net/ipv4/ip_output.c

@@ -1313,7 +1313,7 @@ void __init ip_init(void)
 	ip_rt_init();
 	inet_initpeers();
 
-#ifdef CONFIG_IP_MULTICAST
+#if defined(CONFIG_IP_MULTICAST) && defined(CONFIG_PROC_FS)
 	igmp_mc_proc_init();
 #endif
 }

net/ipv4/netfilter/ip_conntrack_core.c

@@ -251,7 +251,7 @@ static void unexpect_related(struct ip_conntrack_expect *expect)
 }
 
 /* delete all unconfirmed expectations for this conntrack */
-static void remove_expectations(struct ip_conntrack *ct)
+static void remove_expectations(struct ip_conntrack *ct, int drop_refcount)
 {
 	struct list_head *exp_entry, *next;
 	struct ip_conntrack_expect *exp;
@@ -266,8 +266,11 @@ static void remove_expectations(struct ip_conntrack *ct)
 		 * the un-established ones only */
 		if (exp->sibling) {
 			DEBUGP("remove_expectations: skipping established %p of %p\n", exp->sibling, ct);
-			/* Indicate that this expectations parent is dead */
-			exp->expectant = NULL;
+			if (drop_refcount) {
+				/* Indicate that this expectations parent is dead */
+				ip_conntrack_put(exp->expectant);
+				exp->expectant = NULL;
+			}
 			continue;
 		}
 
@@ -292,7 +295,7 @@ clean_from_lists(struct ip_conntrack *ct)
 		    &ct->tuplehash[IP_CT_DIR_REPLY]);
 
 	/* Destroy all un-established, pending expectations */
-	remove_expectations(ct);
+	remove_expectations(ct, 1);
 }
 
 static void
@@ -1117,7 +1120,7 @@ static inline int unhelp(struct ip_conntrack_tuple_hash *i,
 {
 	if (i->ctrack->helper == me) {
 		/* Get rid of any expected. */
-		remove_expectations(i->ctrack);
+		remove_expectations(i->ctrack, 0);
 		/* And *then* set helper to NULL */
 		i->ctrack->helper = NULL;
 	}

net/ipv4/netfilter/ip_conntrack_irc.c

@@ -54,7 +54,7 @@ MODULE_PARM_DESC(dcc_timeout, "timeout on for unestablished DCC channels");
 #endif
 
 static char *dccprotos[] = { "SEND ", "CHAT ", "MOVE ", "TSEND ", "SCHAT " };
-#define MAXMATCHLEN	6
+#define MINMATCHLEN	5
 
 DECLARE_LOCK(ip_irc_lock);
 struct module *ip_conntrack_irc = THIS_MODULE;
@@ -87,9 +87,11 @@ int parse_dcc(char *data, char *data_end, u_int32_t * ip, u_int16_t * port,
 	*ip = simple_strtoul(data, &data, 10);
 
 	/* skip blanks between ip and port */
-	while (*data == ' ')
+	while (*data == ' ') {
+		if (data >= data_end) 
+			return -1;
 		data++;
-
+	}
 
 	*port = simple_strtoul(data, &data, 10);
 	*ad_end_p = data;
@@ -139,13 +141,17 @@ static int help(struct sk_buff *skb,
 
 	data = irc_buffer;
 	data_limit = irc_buffer + skb->len - dataoff;
-	while (data < (data_limit - (22 + MAXMATCHLEN))) {
+
+	/* strlen("\1DCC SENT t AAAAAAAA P\1\n")=24
+	 * 5+MINMATCHLEN+strlen("t AAAAAAAA P\1\n")=14 */
+	while (data < (data_limit - (19 + MINMATCHLEN))) {
 		if (memcmp(data, "\1DCC ", 5)) {
 			data++;
 			continue;
 		}
 
 		data += 5;
+		/* we have at least (19+MINMATCHLEN)-5 bytes valid data left */
 
 		DEBUGP("DCC found in master %u.%u.%u.%u:%u %u.%u.%u.%u:%u...\n",
 			NIPQUAD(iph->saddr), ntohs(tcph.source),
@@ -159,6 +165,9 @@ static int help(struct sk_buff *skb,
 
 			DEBUGP("DCC %s detected\n", dccprotos[i]);
 			data += strlen(dccprotos[i]);
+			/* we have at least 
+			 * (19+MINMATCHLEN)-5-dccprotos[i].matchlen bytes valid
+			 * data left (== 14/13 bytes) */
 			if (parse_dcc((char *)data, data_limit, &dcc_ip,
 				       &dcc_port, &addr_beg_p, &addr_end_p)) {
 				/* unable to parse */

net/ipv4/netfilter/ipt_MIRROR.c

@@ -9,6 +9,12 @@
   Changes:
 	25 Aug 2001 Harald Welte <laforge@gnumonks.org>
 		- decrement and check TTL if not called from FORWARD hook
+	18 Jul 2003 Harald Welte <laforge@netfilter.org>
+		- merge Patrick McHardy's mirror fixes from 2.4.22 to
+		  2.6.0-test1
+	19 Jul 2003 Harald Welte <laforge@netfilter.org>
+		- merge Patrick McHardy's rp_filter fixes from 2.4.22 to
+		  2.6.0-test1
 
   This program is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by the
@@ -32,7 +38,6 @@
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netdevice.h>
 #include <linux/route.h>
-struct in_device;
 #include <net/route.h>
 
 #if 0
@@ -41,46 +46,58 @@ struct in_device;
 #define DEBUGP(format, args...)
 #endif
 
-static int route_mirror(struct sk_buff *skb)
+static inline struct rtable *route_mirror(struct sk_buff *skb, int local)
 {
         struct iphdr *iph = skb->nh.iph;
-	struct flowi fl = { .nl_u = { .ip4_u = { .daddr = iph->saddr,
-						 .saddr = iph->daddr,
-						 .tos = RT_TOS(iph->tos) | RTO_CONN } } };
+	struct dst_entry *odst;
+	struct flowi fl = {};
 	struct rtable *rt;
 
-	/* Backwards */
-	if (ip_route_output_key(&rt, &fl)) {
-		return 0;
+	if (local) {
+		fl.nl_u.ip4_u.daddr = iph->saddr;
+		fl.nl_u.ip4_u.saddr = iph->daddr;
+		fl.nl_u.ip4_u.tos = RT_TOS(iph->tos);
+
+		if (ip_route_output_key(&rt, &fl) != 0)
+			return NULL;
+	} else {
+		/* non-local src, find valid iif to satisfy
+		 * rp-filter when calling ip_route_input(). */
+		fl.nl_u.ip4_u.daddr = iph->daddr;
+		if (ip_route_output_key(&rt, &fl) != 0)
+			return NULL;
+
+		odst = skb->dst;
+		if (ip_route_input(skb, iph->saddr, iph->daddr,
+					RT_TOS(iph->tos), rt->u.dst.dev) != 0) {
+			dst_release(&rt->u.dst);
+			return NULL;
+		}
+		dst_release(&rt->u.dst);
+		rt = (struct rtable *)skb->dst;
+		skb->dst = odst;
 	}
 
-	/* check if the interface we are leaving by is the same as the
-           one we arrived on */
-	if (skb->dev == rt->u.dst.dev) {
-		/* Drop old route. */
-		dst_release(skb->dst);
-		skb->dst = &rt->u.dst;
-		return 1;
+	if (rt->u.dst.error) {
+		dst_release(&rt->u.dst);
+		rt = NULL;
 	}
-	return 0;
+
+	return rt;
 }
 
-static int ip_rewrite(struct sk_buff **pskb)
+static inline void ip_rewrite(struct sk_buff *skb)
 {
 	u32 odaddr, osaddr;
 
-	if (!skb_ip_make_writable(pskb, sizeof(struct iphdr)))
-		return 0;
+	odaddr = skb->nh.iph->saddr;
+	osaddr = skb->nh.iph->daddr;
 
-	odaddr = (*pskb)->nh.iph->saddr;
-	osaddr = (*pskb)->nh.iph->daddr;
-
-	(*pskb)->nfcache |= NFC_ALTERED;
+	skb->nfcache |= NFC_ALTERED;
 
 	/* Rewrite IP header */
-	(*pskb)->nh.iph->daddr = odaddr;
-	(*pskb)->nh.iph->saddr = osaddr;
-	return 1;
+	skb->nh.iph->daddr = odaddr;
+	skb->nh.iph->saddr = osaddr;
 }
 
 /* Stolen from ip_finish_output2 */
@@ -113,31 +130,51 @@ static unsigned int ipt_mirror_target(struct sk_buff **pskb,
 				      const void *targinfo,
 				      void *userinfo)
 {
-	if (((*pskb)->dst != NULL) && route_mirror(*pskb)) {
-		if (!ip_rewrite(pskb))
-			return NF_DROP;
+	struct rtable *rt;
+	struct sk_buff *nskb;
+	unsigned int hh_len;
 
-		/* If we are not at FORWARD hook (INPUT/PREROUTING),
-		 * the TTL isn't decreased by the IP stack */
-		if (hooknum != NF_IP_FORWARD) {
-			if ((*pskb)->nh.iph->ttl <= 1) {
-				/* this will traverse normal stack, and 
-				 * thus call conntrack on the icmp packet */
-				icmp_send(*pskb, ICMP_TIME_EXCEEDED, 
-					  ICMP_EXC_TTL, 0);
-				return NF_DROP;
-			}
-			/* Made writable by ip_rewrite */
-			ip_decrease_ttl((*pskb)->nh.iph);
+	/* Make skb writable */
+	if (!skb_ip_make_writable(pskb, sizeof(struct iphdr)))
+		return 0;
+
+	/* If we are not at FORWARD hook (INPUT/PREROUTING),
+	 * the TTL isn't decreased by the IP stack */
+	if (hooknum != NF_IP_FORWARD) {
+		if ((*pskb)->nh.iph->ttl <= 1) {
+			/* this will traverse normal stack, and 
+			 * thus call conntrack on the icmp packet */
+			icmp_send(*pskb, ICMP_TIME_EXCEEDED, 
+				  ICMP_EXC_TTL, 0);
+			return NF_DROP;
 		}
+		ip_decrease_ttl((*pskb)->nh.iph);
+	}
 
-		/* Don't let conntrack code see this packet:
-                   it will think we are starting a new
-                   connection! --RR */
-		ip_direct_send(*pskb);
+	if ((rt = route_mirror(*pskb, hooknum == NF_IP_LOCAL_IN)) == NULL)
+		return NF_DROP;
 
-		return NF_STOLEN;
+	hh_len = (rt->u.dst.dev->hard_header_len + 15) & ~15;
+
+	/* Copy skb (even if skb is about to be dropped, we can't just
+	 * clone it because there may be other things, such as tcpdump,
+	 * interested in it). We also need to expand headroom in case
+	 * hh_len of incoming interface < hh_len of outgoing interface */
+	nskb = skb_copy_expand(*pskb, hh_len, skb_tailroom(*pskb), GFP_ATOMIC);
+	if (nskb == NULL) {
+		dst_release(&rt->u.dst);
+		return NF_DROP;
 	}
+
+	dst_release(nskb->dst);
+	nskb->dst = &rt->u.dst;
+
+	ip_rewrite(nskb);
+	/* Don't let conntrack code see this packet:
+	 * it will think we are starting a new
+	 * connection! --RR */
+	ip_direct_send(nskb);
+
 	return NF_DROP;
 }
 

net/ipv4/netfilter/ipt_REJECT.c

 /*
  * This is a module which is used for rejecting packets.
  * Added support for customized reject packets (Jozsef Kadlecsik).
+ * Added support for ICMP type-3-code-13 (Maciej Soltysiak). [RFC 1812]
  */
 #include <linux/config.h>
 #include <linux/module.h>
@@ -35,134 +36,180 @@ static void connection_attach(struct sk_buff *new_skb, struct nf_ct_info *nfct)
 	}
 }
 
+static inline struct rtable *route_reverse(struct sk_buff *skb, int local)
+{
+	struct iphdr *iph = skb->nh.iph;
+	struct dst_entry *odst;
+	struct flowi fl = {};
+	struct rtable *rt;
+
+	if (local) {
+		fl.nl_u.ip4_u.daddr = iph->saddr;
+		fl.nl_u.ip4_u.saddr = iph->daddr;
+		fl.nl_u.ip4_u.tos = RT_TOS(iph->tos);
+
+		if (ip_route_output_key(&rt, &fl) != 0)
+			return NULL;
+	} else {
+		/* non-local src, find valid iif to satisfy
+		 * rp-filter when calling ip_route_input. */
+		fl.nl_u.ip4_u.daddr = iph->daddr;
+		if (ip_route_output_key(&rt, &fl) != 0)
+			return NULL;
+
+		odst = skb->dst;
+		if (ip_route_input(skb, iph->saddr, iph->daddr,
+		                   RT_TOS(iph->tos), rt->u.dst.dev) != 0) {
+			dst_release(&rt->u.dst);
+			return NULL;
+		}
+		dst_release(&rt->u.dst);
+		rt = (struct rtable *)skb->dst;
+		skb->dst = odst;
+	}
+
+	if (rt->u.dst.error) {
+		dst_release(&rt->u.dst);
+		rt = NULL;
+	}
+
+	return rt;
+}
+
 /* Send RST reply */
-static unsigned int send_reset(struct sk_buff **pskb, int local)
+static void send_reset(struct sk_buff *oldskb, int local)
 {
-	struct tcphdr tcph;
+	struct sk_buff *nskb;
+	struct tcphdr *otcph, *tcph;
 	struct rtable *rt;
+	unsigned int otcplen;
 	u_int16_t tmp_port;
 	u_int32_t tmp_addr;
-	int needs_ack, hh_len, datalen;
-	struct nf_ct_info *oldnfct;
+	int needs_ack;
+	int hh_len;
 
-	/* No RSTs for fragments. */
-	if ((*pskb)->nh.iph->frag_off & htons(IP_OFFSET))
-		return NF_DROP;
+	/* IP header checks: fragment, too short. */
+	if (oldskb->nh.iph->frag_off & htons(IP_OFFSET)
+	    || oldskb->len < (oldskb->nh.iph->ihl<<2) + sizeof(struct tcphdr))
+		return;
 
-	if (skb_copy_bits(*pskb, (*pskb)->nh.iph->ihl*4,
-			  &tcph, sizeof(tcph)) < 0)
-		return NF_DROP;
+	otcph = (struct tcphdr *)((u_int32_t*)oldskb->nh.iph + oldskb->nh.iph->ihl);
+	otcplen = oldskb->len - oldskb->nh.iph->ihl*4;
+
+	if (skb_copy_bits(oldskb, oldskb->nh.iph->ihl*4,
+			  otcph, sizeof(*otcph)) < 0)
+		return;
 
 	/* No RST for RST. */
-	if (tcph.rst)
-		return NF_DROP;
+	if (otcph->rst)
+		return;
 
-	/* FIXME: Check checksum. */
-	{
-		struct flowi fl = { .nl_u = { .ip4_u =
-					      { .daddr = (*pskb)->nh.iph->saddr,
-						.saddr = (local ?
-							  (*pskb)->nh.iph->daddr :
-							  0),
-						.tos = RT_TOS((*pskb)->nh.iph->tos) } } };
+	/* Check checksum. */
+	if (tcp_v4_check(otcph, otcplen, oldskb->nh.iph->saddr,
+			 oldskb->nh.iph->daddr,
+			 csum_partial((char *)otcph, otcplen, 0)) != 0)
+		return;
 
-		/* Routing: if not headed for us, route won't like source */
-		if (ip_route_output_key(&rt, &fl))
-			return NF_DROP;
+	if ((rt = route_reverse(oldskb, local)) == NULL)
+		return;
 
-		hh_len = (rt->u.dst.dev->hard_header_len + 15)&~15;
-	}
+	hh_len = (rt->u.dst.dev->hard_header_len + 15)&~15;
 
-	/* We're going to flip the header around, drop options and data. */
-	if (!skb_ip_make_writable(pskb, (*pskb)->nh.iph->ihl*4+sizeof(tcph))) {
-		ip_rt_put(rt);
-		return NF_DROP;
+	/* Copy skb (even if skb is about to be dropped, we can't just
+           clone it because there may be other things, such as tcpdump,
+           interested in it). We also need to expand headroom in case
+	   hh_len of incoming interface < hh_len of outgoing interface */
+	nskb = skb_copy_expand(oldskb, hh_len, skb_tailroom(oldskb),
+			       GFP_ATOMIC);
+	if (!nskb) {
+		dst_release(&rt->u.dst);
+		return;
 	}
 
-	(*pskb)->h.th = (void *)(*pskb)->nh.iph + sizeof(tcph);
-	datalen = (*pskb)->len - (*pskb)->nh.iph->ihl*4 - tcph.doff*4;
-
-	/* Change over route. */
-	dst_release((*pskb)->dst);
-	(*pskb)->dst = &rt->u.dst;
+	dst_release(nskb->dst);
+	nskb->dst = &rt->u.dst;
 
 	/* This packet will not be the same as the other: clear nf fields */
-	(*pskb)->nfcache = 0;
+	nf_conntrack_put(nskb->nfct);
+	nskb->nfct = NULL;
+	nskb->nfcache = 0;
 #ifdef CONFIG_NETFILTER_DEBUG
-	(*pskb)->nf_debug = 0;
+	nskb->nf_debug = 0;
 #endif
-	(*pskb)->nfmark = 0;
+	nskb->nfmark = 0;
+
+	tcph = (struct tcphdr *)((u_int32_t*)nskb->nh.iph + nskb->nh.iph->ihl);
 
 	/* Swap source and dest */
-	tmp_addr = (*pskb)->nh.iph->saddr;
-	(*pskb)->nh.iph->saddr = (*pskb)->nh.iph->daddr;
-	(*pskb)->nh.iph->daddr = tmp_addr;
-	tmp_port = (*pskb)->h.th->source;
-	(*pskb)->h.th->source = (*pskb)->h.th->dest;
-	(*pskb)->h.th->dest = tmp_port;
+	tmp_addr = nskb->nh.iph->saddr;
+	nskb->nh.iph->saddr = nskb->nh.iph->daddr;
+	nskb->nh.iph->daddr = tmp_addr;
+	tmp_port = tcph->source;
+	tcph->source = tcph->dest;
+	tcph->dest = tmp_port;
 
 	/* Truncate to length (no data) */
-	(*pskb)->h.th->doff = sizeof(struct tcphdr)/4;
-	skb_trim(*pskb, (*pskb)->nh.iph->ihl*4 + sizeof(struct tcphdr));
-	(*pskb)->nh.iph->tot_len = htons((*pskb)->len);
+	tcph->doff = sizeof(struct tcphdr)/4;
+	skb_trim(nskb, nskb->nh.iph->ihl*4 + sizeof(struct tcphdr));
+	nskb->nh.iph->tot_len = htons(nskb->len);
 
-	if ((*pskb)->h.th->ack) {
+	if (tcph->ack) {
 		needs_ack = 0;
-		(*pskb)->h.th->seq = tcph.ack_seq;
-		(*pskb)->h.th->ack_seq = 0;
+		tcph->seq = otcph->ack_seq;
+		tcph->ack_seq = 0;
 	} else {
 		needs_ack = 1;
-		(*pskb)->h.th->ack_seq = htonl(ntohl(tcph.seq)
-						 + tcph.syn + tcph.fin
-						 + datalen);
-		(*pskb)->h.th->seq = 0;
+		tcph->ack_seq = htonl(ntohl(otcph->seq) + otcph->syn + otcph->fin
+				      + otcplen - (otcph->doff<<2));
+		tcph->seq = 0;
 	}
 
 	/* Reset flags */
-	memset((*pskb)->h.raw + 13, 0, 1);
-	(*pskb)->h.th->rst = 1;
-	(*pskb)->h.th->ack = needs_ack;
+	((u_int8_t *)tcph)[13] = 0;
+	tcph->rst = 1;
+	tcph->ack = needs_ack;
 
-	(*pskb)->h.th->window = 0;
-	(*pskb)->h.th->urg_ptr = 0;
+	tcph->window = 0;
+	tcph->urg_ptr = 0;
 
 	/* Adjust TCP checksum */
-	(*pskb)->h.th->check = 0;
-	(*pskb)->h.th->check
-		= tcp_v4_check((*pskb)->h.th,
-			       sizeof(struct tcphdr),
-			       (*pskb)->nh.iph->saddr,
-			       (*pskb)->nh.iph->daddr,
-			       csum_partial((*pskb)->h.raw,
-					    sizeof(struct tcphdr), 0));
+	tcph->check = 0;
+	tcph->check = tcp_v4_check(tcph, sizeof(struct tcphdr),
+				   nskb->nh.iph->saddr,
+				   nskb->nh.iph->daddr,
+				   csum_partial((char *)tcph,
+						sizeof(struct tcphdr), 0));
 
 	/* Adjust IP TTL, DF */
-	(*pskb)->nh.iph->ttl = MAXTTL;
+	nskb->nh.iph->ttl = MAXTTL;
 	/* Set DF, id = 0 */
-	(*pskb)->nh.iph->frag_off = htons(IP_DF);
-	(*pskb)->nh.iph->id = 0;
+	nskb->nh.iph->frag_off = htons(IP_DF);
+	nskb->nh.iph->id = 0;
 
 	/* Adjust IP checksum */
-	(*pskb)->nh.iph->check = 0;
-	(*pskb)->nh.iph->check = ip_fast_csum((*pskb)->nh.raw, 
-					      (*pskb)->nh.iph->ihl);
+	nskb->nh.iph->check = 0;
+	nskb->nh.iph->check = ip_fast_csum((unsigned char *)nskb->nh.iph, 
+					   nskb->nh.iph->ihl);
 
 	/* "Never happens" */
-	if ((*pskb)->len > dst_pmtu((*pskb)->dst))
-		return NF_DROP;
+	if (nskb->len > dst_pmtu(nskb->dst))
+		goto free_nskb;
 
-	/* Related to old connection. */
-	oldnfct = (*pskb)->nfct;
-	connection_attach(*pskb, oldnfct);
-	nf_conntrack_put(oldnfct);
+	connection_attach(nskb, oldskb->nfct);
 
-	NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, *pskb, NULL, (*pskb)->dst->dev,
+	NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, nskb, NULL, nskb->dst->dev,
 		ip_finish_output);
-	return NF_STOLEN;
+	return;
+
+ free_nskb:
+	kfree_skb(nskb);
 }
 
-static void send_unreach(const struct sk_buff *skb_in, int code)
+static void send_unreach(struct sk_buff *skb_in, int code)
 {
+	struct iphdr *iph;
+	struct udphdr *udph;
+	struct icmphdr *icmph;
 	struct sk_buff *nskb;
 	u32 saddr;
 	u8 tos;
@@ -177,6 +224,8 @@ static void send_unreach(const struct sk_buff *skb_in, int code)
 	if (!xrlim_allow(&rt->u.dst, 1*HZ))
 		return;
 
+	iph = skb_in->nh.iph;
+
 	/* No replies to physical multicast/broadcast */
 	if (skb_in->pkt_type!=PACKET_HOST)
 		return;
@@ -186,38 +235,52 @@ static void send_unreach(const struct sk_buff *skb_in, int code)
 		return;
 
 	/* Only reply to fragment 0. */
-	if (skb_in->nh.iph->frag_off&htons(IP_OFFSET))
+	if (iph->frag_off&htons(IP_OFFSET))
 		return;
 
 	/* Ensure we have at least 8 bytes of proto header. */
 	if (skb_in->len < skb_in->nh.iph->ihl*4 + 8)
 		return;
 
+	/* if UDP checksum is set, verify it's correct */
+	if (iph->protocol == IPPROTO_UDP
+	    && skb_in->tail-(u8*)iph >= sizeof(struct udphdr)) {
+		int datalen = skb_in->len - (iph->ihl<<2);
+		udph = (struct udphdr *)((char *)iph + (iph->ihl<<2));
+		if (udph->check
+		    && csum_tcpudp_magic(iph->saddr, iph->daddr,
+		                         datalen, IPPROTO_UDP,
+		                         csum_partial((char *)udph, datalen,
+		                                      0)) != 0)
+			return;
+	}
+
 	/* If we send an ICMP error to an ICMP error a mess would result.. */
-	if (skb_in->nh.iph->protocol == IPPROTO_ICMP) {
-		struct icmphdr icmph;
+	if (iph->protocol == IPPROTO_ICMP
+	    && skb_in->tail-(u8*)iph >= sizeof(struct icmphdr)) {
+		icmph = (struct icmphdr *)((char *)iph + (iph->ihl<<2));
 
 		if (skb_copy_bits(skb_in, skb_in->nh.iph->ihl*4,
-				  &icmph, sizeof(icmph)) < 0)
+				  icmph, sizeof(*icmph)) < 0)
 			return;
 
 		/* Between echo-reply (0) and timestamp (13),
 		   everything except echo-request (8) is an error.
 		   Also, anything greater than NR_ICMP_TYPES is
 		   unknown, and hence should be treated as an error... */
-		if ((icmph.type < ICMP_TIMESTAMP
-		     && icmph.type != ICMP_ECHOREPLY
-		     && icmph.type != ICMP_ECHO)
-		    || icmph.type > NR_ICMP_TYPES)
+		if ((icmph->type < ICMP_TIMESTAMP
+		     && icmph->type != ICMP_ECHOREPLY
+		     && icmph->type != ICMP_ECHO)
+		    || icmph->type > NR_ICMP_TYPES)
 			return;
 	}
 
-	saddr = skb_in->nh.iph->daddr;
+	saddr = iph->daddr;
 	if (!(rt->rt_flags & RTCF_LOCAL))
 		saddr = 0;
 
-	tos = (skb_in->nh.iph->tos & IPTOS_TOS_MASK)
-		| IPTOS_PREC_INTERNETCONTROL;
+	tos = (iph->tos & IPTOS_TOS_MASK) | IPTOS_PREC_INTERNETCONTROL;
+
 	{
 		struct flowi fl = { .nl_u = { .ip4_u =
 					      { .daddr = skb_in->nh.iph->saddr,
@@ -247,38 +310,41 @@ static void send_unreach(const struct sk_buff *skb_in, int code)
 	skb_reserve(nskb, hh_len);
 
 	/* Set up IP header */
-	nskb->nh.iph = (struct iphdr *)skb_put(nskb, sizeof(struct iphdr));
-	nskb->nh.iph->version=4;
-	nskb->nh.iph->ihl=5;
-	nskb->nh.iph->tos=tos;
-	nskb->nh.iph->tot_len = htons(length);
+	iph = nskb->nh.iph
+		= (struct iphdr *)skb_put(nskb, sizeof(struct iphdr));
+	iph->version=4;
+	iph->ihl=5;
+	iph->tos=tos;
+	iph->tot_len = htons(length);
 
 	/* PMTU discovery never applies to ICMP packets. */
-	nskb->nh.iph->frag_off = 0;
+	iph->frag_off = 0;
 
-	nskb->nh.iph->ttl = MAXTTL;
-	ip_select_ident(nskb->nh.iph, &rt->u.dst, NULL);
-	nskb->nh.iph->protocol=IPPROTO_ICMP;
-	nskb->nh.iph->saddr=rt->rt_src;
-	nskb->nh.iph->daddr=rt->rt_dst;
-	nskb->nh.iph->check=0;
-	nskb->nh.iph->check = ip_fast_csum(nskb->nh.raw,
-					   nskb->nh.iph->ihl);
+	iph->ttl = MAXTTL;
+	ip_select_ident(iph, &rt->u.dst, NULL);
+	iph->protocol=IPPROTO_ICMP;
+	iph->saddr=rt->rt_src;
+	iph->daddr=rt->rt_dst;
+	iph->check=0;
+	iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
 
 	/* Set up ICMP header. */
-	nskb->h.icmph = (struct icmphdr *)skb_put(nskb,sizeof(struct icmphdr));
-	nskb->h.icmph->type = ICMP_DEST_UNREACH;
-	nskb->h.icmph->code = code;	
-	nskb->h.icmph->un.gateway = 0;
-	nskb->h.icmph->checksum = 0;
+	icmph = nskb->h.icmph
+		= (struct icmphdr *)skb_put(nskb, sizeof(struct icmphdr));
+	icmph->type = ICMP_DEST_UNREACH;
+	icmph->code = code;	
+	icmph->un.gateway = 0;
+	icmph->checksum = 0;
 	
 	/* Copy as much of original packet as will fit */
 	data = skb_put(nskb,
 		       length - sizeof(struct iphdr) - sizeof(struct icmphdr));
+
 	skb_copy_bits(skb_in, 0, data,
 		      length - sizeof(struct iphdr) - sizeof(struct icmphdr));
-	nskb->h.icmph->checksum = ip_compute_csum(nskb->h.raw,
-						  length-sizeof(struct iphdr));
+
+	icmph->checksum = ip_compute_csum((unsigned char *)icmph,
+					  length - sizeof(struct iphdr));
 
 	connection_attach(nskb, skb_in->nfct);
 
@@ -322,8 +388,11 @@ static unsigned int reject(struct sk_buff **pskb,
 	case IPT_ICMP_HOST_PROHIBITED:
     		send_unreach(*pskb, ICMP_HOST_ANO);
     		break;
+    	case IPT_ICMP_ADMIN_PROHIBITED:
+		send_unreach(*pskb, ICMP_PKT_FILTERED);
+		break;
 	case IPT_TCP_RESET:
-		return send_reset(pskb, hooknum == NF_IP_LOCAL_IN);
+		send_reset(*pskb, hooknum == NF_IP_LOCAL_IN);
 	case IPT_ICMP_ECHOREPLY:
 		/* Doesn't happen. */
 		break;

net/ipv4/netfilter/ipt_helper.c

@@ -10,6 +10,7 @@
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <linux/netfilter_ipv4/ip_conntrack.h>
+#include <linux/netfilter_ipv4/ip_conntrack_core.h>
 #include <linux/netfilter_ipv4/ip_conntrack_helper.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ipt_helper.h>
@@ -34,6 +35,7 @@ match(const struct sk_buff *skb,
 	struct ip_conntrack_expect *exp;
 	struct ip_conntrack *ct;
 	enum ip_conntrack_info ctinfo;
+	int ret = 0;
 	
 	ct = ip_conntrack_get((struct sk_buff *)skb, &ctinfo);
 	if (!ct) {
@@ -47,23 +49,27 @@ match(const struct sk_buff *skb,
 	}
 
 	exp = ct->master;
+	READ_LOCK(&ip_conntrack_lock);
 	if (!exp->expectant) {
 		DEBUGP("ipt_helper: expectation %p without expectant !?!\n", 
 			exp);
-		return 0;
+		goto out_unlock;
 	}
 
 	if (!exp->expectant->helper) {
 		DEBUGP("ipt_helper: master ct %p has no helper\n", 
 			exp->expectant);
-		return 0;
+		goto out_unlock;
 	}
 
 	DEBUGP("master's name = %s , info->name = %s\n", 
 		exp->expectant->helper->name, info->name);
 
-	return !strncmp(exp->expectant->helper->name, info->name, 
-			strlen(exp->expectant->helper->name)) ^ info->invert;
+	ret = !strncmp(exp->expectant->helper->name, info->name, 
+	               strlen(exp->expectant->helper->name)) ^ info->invert;
+out_unlock:
+	READ_UNLOCK(&ip_conntrack_lock);
+	return ret;
 }
 
 static int check(const char *tablename,

net/ipv6/addrconf.c

@@ -130,7 +130,7 @@ static spinlock_t addrconf_verify_lock = SPIN_LOCK_UNLOCKED;
 
 static int addrconf_ifdown(struct net_device *dev, int how);
 
-static void addrconf_dad_start(struct inet6_ifaddr *ifp);
+static void addrconf_dad_start(struct inet6_ifaddr *ifp, int flags);
 static void addrconf_dad_timer(unsigned long data);
 static void addrconf_dad_completed(struct inet6_ifaddr *ifp);
 static void addrconf_rs_timer(unsigned long data);
@@ -710,7 +710,7 @@ static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *i
 	ift->prefered_lft = tmp_prefered_lft;
 	ift->tstamp = ifp->tstamp;
 	spin_unlock_bh(&ift->lock);
-	addrconf_dad_start(ift);
+	addrconf_dad_start(ift, 0);
 	in6_ifa_put(ift);
 	in6_dev_put(idev);
 out:
@@ -1247,7 +1247,7 @@ static void addrconf_add_mroute(struct net_device *dev)
 	rtmsg.rtmsg_dst_len = 8;
 	rtmsg.rtmsg_metric = IP6_RT_PRIO_ADDRCONF;
 	rtmsg.rtmsg_ifindex = dev->ifindex;
-	rtmsg.rtmsg_flags = RTF_UP|RTF_ADDRCONF;
+	rtmsg.rtmsg_flags = RTF_UP;
 	rtmsg.rtmsg_type = RTMSG_NEWROUTE;
 	ip6_route_add(&rtmsg, NULL, NULL);
 }
@@ -1274,7 +1274,7 @@ static void addrconf_add_lroute(struct net_device *dev)
 	struct in6_addr addr;
 
 	ipv6_addr_set(&addr,  htonl(0xFE800000), 0, 0, 0);
-	addrconf_prefix_route(&addr, 64, dev, 0, RTF_ADDRCONF);
+	addrconf_prefix_route(&addr, 64, dev, 0, 0);
 }
 
 static struct inet6_dev *addrconf_add_dev(struct net_device *dev)
@@ -1367,7 +1367,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
 			}
 		} else if (valid_lft) {
 			addrconf_prefix_route(&pinfo->prefix, pinfo->prefix_len,
-					      dev, rt_expires, RTF_ADDRCONF|RTF_EXPIRES);
+					      dev, rt_expires, RTF_ADDRCONF|RTF_EXPIRES|RTF_PREFIX_RT);
 		}
 		if (rt)
 			dst_release(&rt->u.dst);
@@ -1413,7 +1413,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
 			}
 
 			update_lft = create = 1;
-			addrconf_dad_start(ifp);
+			addrconf_dad_start(ifp, RTF_ADDRCONF|RTF_PREFIX_RT);
 		}
 
 		if (ifp) {
@@ -1586,7 +1586,7 @@ static int inet6_addr_add(int ifindex, struct in6_addr *pfx, int plen)
 
 	ifp = ipv6_add_addr(idev, pfx, plen, scope, IFA_F_PERMANENT);
 	if (!IS_ERR(ifp)) {
-		addrconf_dad_start(ifp);
+		addrconf_dad_start(ifp, 0);
 		in6_ifa_put(ifp);
 		return 0;
 	}
@@ -1761,7 +1761,7 @@ 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_dad_start(ifp);
+		addrconf_dad_start(ifp, 0);
 		in6_ifa_put(ifp);
 	}
 }
@@ -2021,8 +2021,7 @@ static void addrconf_rs_timer(unsigned long data)
 		memset(&rtmsg, 0, sizeof(struct in6_rtmsg));
 		rtmsg.rtmsg_type = RTMSG_NEWROUTE;
 		rtmsg.rtmsg_metric = IP6_RT_PRIO_ADDRCONF;
-		rtmsg.rtmsg_flags = (RTF_ALLONLINK | RTF_ADDRCONF | 
-				     RTF_DEFAULT | RTF_UP);
+		rtmsg.rtmsg_flags = (RTF_ALLONLINK | RTF_DEFAULT | RTF_UP);
 
 		rtmsg.rtmsg_ifindex = ifp->idev->dev->ifindex;
 
@@ -2036,7 +2035,7 @@ static void addrconf_rs_timer(unsigned long data)
 /*
  *	Duplicate Address Detection
  */
-static void addrconf_dad_start(struct inet6_ifaddr *ifp)
+static void addrconf_dad_start(struct inet6_ifaddr *ifp, int flags)
 {
 	struct net_device *dev;
 	unsigned long rand_num;
@@ -2046,7 +2045,8 @@ static void addrconf_dad_start(struct inet6_ifaddr *ifp)
 	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, RTF_ADDRCONF);
+		addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev, 0,
+					flags);
 
 	net_srandom(ifp->addr.s6_addr32[3]);
 	rand_num = net_random() % (ifp->idev->cnf.rtr_solicit_delay ? : 1);

net/ipv6/route.c

@@ -1459,13 +1459,20 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
 			 struct in6_addr *src,
 			 int iif,
 			 int type, u32 pid, u32 seq,
-			 struct nlmsghdr *in_nlh)
+			 struct nlmsghdr *in_nlh, int prefix)
 {
 	struct rtmsg *rtm;
 	struct nlmsghdr  *nlh;
 	unsigned char	 *b = skb->tail;
 	struct rta_cacheinfo ci;
 
+	if (prefix) {	/* user wants prefix routes only */
+		if (!(rt->rt6i_flags & RTF_PREFIX_RT)) {
+			/* success since this is not a prefix route */
+			return 1;
+		}
+	}
+
 	if (!pid && in_nlh) {
 		pid = in_nlh->nlmsg_pid;
 	}
@@ -1546,10 +1553,17 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
 static int rt6_dump_route(struct rt6_info *rt, void *p_arg)
 {
 	struct rt6_rtnl_dump_arg *arg = (struct rt6_rtnl_dump_arg *) p_arg;
+	struct rtmsg *rtm;
+	int prefix;
+
+	rtm = NLMSG_DATA(arg->cb->nlh);
+	if (rtm)
+		prefix = (rtm->rtm_flags & RTM_F_PREFIX) != 0;
+	else prefix = 0;
 
 	return rt6_fill_node(arg->skb, rt, NULL, NULL, 0, RTM_NEWROUTE,
 		     NETLINK_CB(arg->cb->skb).pid, arg->cb->nlh->nlmsg_seq,
-		     NULL);
+		     NULL, prefix);
 }
 
 static int fib6_dump_node(struct fib6_walker_t *w)
@@ -1697,7 +1711,7 @@ int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
 			    &fl.fl6_dst, &fl.fl6_src,
 			    iif,
 			    RTM_NEWROUTE, NETLINK_CB(in_skb).pid,
-			    nlh->nlmsg_seq, nlh);
+			    nlh->nlmsg_seq, nlh, 0);
 	if (err < 0) {
 		err = -EMSGSIZE;
 		goto out_free;
@@ -1723,7 +1737,7 @@ void inet6_rt_notify(int event, struct rt6_info *rt, struct nlmsghdr *nlh)
 		netlink_set_err(rtnl, 0, RTMGRP_IPV6_ROUTE, ENOBUFS);
 		return;
 	}
-	if (rt6_fill_node(skb, rt, NULL, NULL, 0, event, 0, 0, nlh) < 0) {
+	if (rt6_fill_node(skb, rt, NULL, NULL, 0, event, 0, 0, nlh, 0) < 0) {
 		kfree_skb(skb);
 		netlink_set_err(rtnl, 0, RTMGRP_IPV6_ROUTE, EINVAL);
 		return;