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yaml
---
r: 203356
b: refs/heads/master
c: 4df53d8
h: refs/heads/master
v: v3
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Patrick McHardy committed Jul 2, 2010
1 parent bff3107 commit 82db4a9
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Showing 4 changed files with 98 additions and 10 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 7eb9282cd0efac08b8377cbd5037ba297c77e3f7
refs/heads/master: 4df53d8bab65cf2c18daebd51a5a4847e03f1943
31 changes: 22 additions & 9 deletions trunk/net/bridge/br_netfilter.c
Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,9 @@ static int brnf_call_arptables __read_mostly = 1;
static int brnf_filter_vlan_tagged __read_mostly = 0;
static int brnf_filter_pppoe_tagged __read_mostly = 0;
#else
#define brnf_call_iptables 1
#define brnf_call_ip6tables 1
#define brnf_call_arptables 1
#define brnf_filter_vlan_tagged 0
#define brnf_filter_pppoe_tagged 0
#endif
Expand Down Expand Up @@ -543,25 +546,30 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff *skb,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
struct net_bridge_port *p;
struct net_bridge *br;
struct iphdr *iph;
__u32 len = nf_bridge_encap_header_len(skb);

if (unlikely(!pskb_may_pull(skb, len)))
goto out;

p = rcu_dereference(in->br_port);
if (p == NULL)
goto out;
br = p->br;

if (skb->protocol == htons(ETH_P_IPV6) || IS_VLAN_IPV6(skb) ||
IS_PPPOE_IPV6(skb)) {
#ifdef CONFIG_SYSCTL
if (!brnf_call_ip6tables)
if (!brnf_call_ip6tables && !br->nf_call_ip6tables)
return NF_ACCEPT;
#endif

nf_bridge_pull_encap_header_rcsum(skb);
return br_nf_pre_routing_ipv6(hook, skb, in, out, okfn);
}
#ifdef CONFIG_SYSCTL
if (!brnf_call_iptables)

if (!brnf_call_iptables && !br->nf_call_iptables)
return NF_ACCEPT;
#endif

if (skb->protocol != htons(ETH_P_IP) && !IS_VLAN_IP(skb) &&
!IS_PPPOE_IP(skb))
Expand Down Expand Up @@ -714,12 +722,17 @@ static unsigned int br_nf_forward_arp(unsigned int hook, struct sk_buff *skb,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
struct net_bridge_port *p;
struct net_bridge *br;
struct net_device **d = (struct net_device **)(skb->cb);

#ifdef CONFIG_SYSCTL
if (!brnf_call_arptables)
p = rcu_dereference(out->br_port);
if (p == NULL)
return NF_ACCEPT;
br = p->br;

if (!brnf_call_arptables && !br->nf_call_arptables)
return NF_ACCEPT;
#endif

if (skb->protocol != htons(ETH_P_ARP)) {
if (!IS_VLAN_ARP(skb))
Expand Down
3 changes: 3 additions & 0 deletions trunk/net/bridge/br_private.h
Original file line number Diff line number Diff line change
Expand Up @@ -164,6 +164,9 @@ struct net_bridge
unsigned long feature_mask;
#ifdef CONFIG_BRIDGE_NETFILTER
struct rtable fake_rtable;
bool nf_call_iptables;
bool nf_call_ip6tables;
bool nf_call_arptables;
#endif
unsigned long flags;
#define BR_SET_MAC_ADDR 0x00000001
Expand Down
72 changes: 72 additions & 0 deletions trunk/net/bridge/br_sysfs_br.c
Original file line number Diff line number Diff line change
Expand Up @@ -611,6 +611,73 @@ static DEVICE_ATTR(multicast_startup_query_interval, S_IRUGO | S_IWUSR,
show_multicast_startup_query_interval,
store_multicast_startup_query_interval);
#endif
#ifdef CONFIG_BRIDGE_NETFILTER
static ssize_t show_nf_call_iptables(
struct device *d, struct device_attribute *attr, char *buf)
{
struct net_bridge *br = to_bridge(d);
return sprintf(buf, "%u\n", br->nf_call_iptables);
}

static int set_nf_call_iptables(struct net_bridge *br, unsigned long val)
{
br->nf_call_iptables = val ? true : false;
return 0;
}

static ssize_t store_nf_call_iptables(
struct device *d, struct device_attribute *attr, const char *buf,
size_t len)
{
return store_bridge_parm(d, buf, len, set_nf_call_iptables);
}
static DEVICE_ATTR(nf_call_iptables, S_IRUGO | S_IWUSR,
show_nf_call_iptables, store_nf_call_iptables);

static ssize_t show_nf_call_ip6tables(
struct device *d, struct device_attribute *attr, char *buf)
{
struct net_bridge *br = to_bridge(d);
return sprintf(buf, "%u\n", br->nf_call_ip6tables);
}

static int set_nf_call_ip6tables(struct net_bridge *br, unsigned long val)
{
br->nf_call_ip6tables = val ? true : false;
return 0;
}

static ssize_t store_nf_call_ip6tables(
struct device *d, struct device_attribute *attr, const char *buf,
size_t len)
{
return store_bridge_parm(d, buf, len, set_nf_call_ip6tables);
}
static DEVICE_ATTR(nf_call_ip6tables, S_IRUGO | S_IWUSR,
show_nf_call_ip6tables, store_nf_call_ip6tables);

static ssize_t show_nf_call_arptables(
struct device *d, struct device_attribute *attr, char *buf)
{
struct net_bridge *br = to_bridge(d);
return sprintf(buf, "%u\n", br->nf_call_arptables);
}

static int set_nf_call_arptables(struct net_bridge *br, unsigned long val)
{
br->nf_call_arptables = val ? true : false;
return 0;
}

static ssize_t store_nf_call_arptables(
struct device *d, struct device_attribute *attr, const char *buf,
size_t len)
{
return store_bridge_parm(d, buf, len, set_nf_call_arptables);
}
static DEVICE_ATTR(nf_call_arptables, S_IRUGO | S_IWUSR,
show_nf_call_arptables, store_nf_call_arptables);
#endif

static struct attribute *bridge_attrs[] = {
&dev_attr_forward_delay.attr,
Expand Down Expand Up @@ -644,6 +711,11 @@ static struct attribute *bridge_attrs[] = {
&dev_attr_multicast_query_interval.attr,
&dev_attr_multicast_query_response_interval.attr,
&dev_attr_multicast_startup_query_interval.attr,
#endif
#ifdef CONFIG_BRIDGE_NETFILTER
&dev_attr_nf_call_iptables.attr,
&dev_attr_nf_call_ip6tables.attr,
&dev_attr_nf_call_arptables.attr,
#endif
NULL
};
Expand Down

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