Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

4 files changed, 33 insertions, 20 deletions

diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index 8412247..dec4f38 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -62,6 +62,15 @@ static int brnf_filter_pppoe_tagged __read_mostly = 0;
 #define brnf_filter_pppoe_tagged 0
 #endif
 
+#define IS_IP(skb) \
+	(!vlan_tx_tag_present(skb) && skb->protocol == htons(ETH_P_IP))
+
+#define IS_IPV6(skb) \
+	(!vlan_tx_tag_present(skb) && skb->protocol == htons(ETH_P_IPV6))
+
+#define IS_ARP(skb) \
+	(!vlan_tx_tag_present(skb) && skb->protocol == htons(ETH_P_ARP))
+
 static inline __be16 vlan_proto(const struct sk_buff *skb)
 {
 	if (vlan_tx_tag_present(skb))
@@ -639,8 +648,7 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff *skb,
 		return NF_DROP;
 	br = p->br;
 
-	if (skb->protocol == htons(ETH_P_IPV6) || IS_VLAN_IPV6(skb) ||
-	    IS_PPPOE_IPV6(skb)) {
+	if (IS_IPV6(skb) || IS_VLAN_IPV6(skb) || IS_PPPOE_IPV6(skb)) {
 		if (!brnf_call_ip6tables && !br->nf_call_ip6tables)
 			return NF_ACCEPT;
 
@@ -651,8 +659,7 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff *skb,
 	if (!brnf_call_iptables && !br->nf_call_iptables)
 		return NF_ACCEPT;
 
-	if (skb->protocol != htons(ETH_P_IP) && !IS_VLAN_IP(skb) &&
-	    !IS_PPPOE_IP(skb))
+	if (!IS_IP(skb) && !IS_VLAN_IP(skb) && !IS_PPPOE_IP(skb))
 		return NF_ACCEPT;
 
 	nf_bridge_pull_encap_header_rcsum(skb);
@@ -701,7 +708,7 @@ static int br_nf_forward_finish(struct sk_buff *skb)
 	struct nf_bridge_info *nf_bridge = skb->nf_bridge;
 	struct net_device *in;
 
-	if (skb->protocol != htons(ETH_P_ARP) && !IS_VLAN_ARP(skb)) {
+	if (!IS_ARP(skb) && !IS_VLAN_ARP(skb)) {
 		in = nf_bridge->physindev;
 		if (nf_bridge->mask & BRNF_PKT_TYPE) {
 			skb->pkt_type = PACKET_OTHERHOST;
@@ -718,6 +725,7 @@ static int br_nf_forward_finish(struct sk_buff *skb)
 	return 0;
 }
 
+
 /* This is the 'purely bridged' case.  For IP, we pass the packet to
  * netfilter with indev and outdev set to the bridge device,
  * but we are still able to filter on the 'real' indev/outdev
@@ -744,11 +752,9 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb,
 	if (!parent)
 		return NF_DROP;
 
-	if (skb->protocol == htons(ETH_P_IP) || IS_VLAN_IP(skb) ||
-	    IS_PPPOE_IP(skb))
+	if (IS_IP(skb) || IS_VLAN_IP(skb) || IS_PPPOE_IP(skb))
 		pf = PF_INET;
-	else if (skb->protocol == htons(ETH_P_IPV6) || IS_VLAN_IPV6(skb) ||
-		 IS_PPPOE_IPV6(skb))
+	else if (IS_IPV6(skb) || IS_VLAN_IPV6(skb) || IS_PPPOE_IPV6(skb))
 		pf = PF_INET6;
 	else
 		return NF_ACCEPT;
@@ -795,7 +801,7 @@ static unsigned int br_nf_forward_arp(unsigned int hook, struct sk_buff *skb,
 	if (!brnf_call_arptables && !br->nf_call_arptables)
 		return NF_ACCEPT;
 
-	if (skb->protocol != htons(ETH_P_ARP)) {
+	if (!IS_ARP(skb)) {
 		if (!IS_VLAN_ARP(skb))
 			return NF_ACCEPT;
 		nf_bridge_pull_encap_header(skb);
@@ -853,11 +859,9 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb,
 	if (!realoutdev)
 		return NF_DROP;
 
-	if (skb->protocol == htons(ETH_P_IP) || IS_VLAN_IP(skb) ||
-	    IS_PPPOE_IP(skb))
+	if (IS_IP(skb) || IS_VLAN_IP(skb) || IS_PPPOE_IP(skb))
 		pf = PF_INET;
-	else if (skb->protocol == htons(ETH_P_IPV6) || IS_VLAN_IPV6(skb) ||
-		 IS_PPPOE_IPV6(skb))
+	else if (IS_IPV6(skb) || IS_VLAN_IPV6(skb) || IS_PPPOE_IPV6(skb))
 		pf = PF_INET6;
 	else
 		return NF_ACCEPT;
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index 6751ed4..8c836d9 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -31,7 +31,7 @@ static const char *const br_port_state_names[] = {
 
 void br_log_state(const struct net_bridge_port *p)
 {
-	br_info(p->br, "port %u(%s) entering %s state\n",
+	br_info(p->br, "port %u(%s) entered %s state\n",
 		(unsigned) p->port_no, p->dev->name,
 		br_port_state_names[p->state]);
 }
diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 19308e3..f494496 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -98,14 +98,13 @@ void br_stp_disable_port(struct net_bridge_port *p)
 	struct net_bridge *br = p->br;
 	int wasroot;
 
-	br_log_state(p);
-
 	wasroot = br_is_root_bridge(br);
 	br_become_designated_port(p);
 	p->state = BR_STATE_DISABLED;
 	p->topology_change_ack = 0;
 	p->config_pending = 0;
 
+	br_log_state(p);
 	br_ifinfo_notify(RTM_NEWLINK, p);
 
 	del_timer(&p->message_age_timer);
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 8aa4ad0..5fe2ff3 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1335,7 +1335,12 @@ static inline int ebt_make_matchname(const struct ebt_entry_match *m,
     const char *base, char __user *ubase)
 {
 	char __user *hlp = ubase + ((char *)m - base);
-	if (copy_to_user(hlp, m->u.match->name, EBT_FUNCTION_MAXNAMELEN))
+	char name[EBT_FUNCTION_MAXNAMELEN] = {};
+
+	/* ebtables expects 32 bytes long names but xt_match names are 29 bytes
+	   long. Copy 29 bytes and fill remaining bytes with zeroes. */
+	strncpy(name, m->u.match->name, sizeof(name));
+	if (copy_to_user(hlp, name, EBT_FUNCTION_MAXNAMELEN))
 		return -EFAULT;
 	return 0;
 }
@@ -1344,7 +1349,10 @@ static inline int ebt_make_watchername(const struct ebt_entry_watcher *w,
     const char *base, char __user *ubase)
 {
 	char __user *hlp = ubase + ((char *)w - base);
-	if (copy_to_user(hlp , w->u.watcher->name, EBT_FUNCTION_MAXNAMELEN))
+	char name[EBT_FUNCTION_MAXNAMELEN] = {};
+
+	strncpy(name, w->u.watcher->name, sizeof(name));
+	if (copy_to_user(hlp , name, EBT_FUNCTION_MAXNAMELEN))
 		return -EFAULT;
 	return 0;
 }
@@ -1355,6 +1363,7 @@ ebt_make_names(struct ebt_entry *e, const char *base, char __user *ubase)
 	int ret;
 	char __user *hlp;
 	const struct ebt_entry_target *t;
+	char name[EBT_FUNCTION_MAXNAMELEN] = {};
 
 	if (e->bitmask == 0)
 		return 0;
@@ -1368,7 +1377,8 @@ ebt_make_names(struct ebt_entry *e, const char *base, char __user *ubase)
 	ret = EBT_WATCHER_ITERATE(e, ebt_make_watchername, base, ubase);
 	if (ret != 0)
 		return ret;
-	if (copy_to_user(hlp, t->u.target->name, EBT_FUNCTION_MAXNAMELEN))
+	strncpy(name, t->u.target->name, sizeof(name));
+	if (copy_to_user(hlp, name, EBT_FUNCTION_MAXNAMELEN))
 		return -EFAULT;
 	return 0;
 }