br_netfilter.c File Reference

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/ip.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <linux/if_ether.h>
#include <linux/if_vlan.h>
#include <linux/if_pppox.h>
#include <linux/ppp_defs.h>
#include <linux/netfilter_bridge.h>
#include <linux/netfilter_ipv4.h>
#include <linux/netfilter_ipv6.h>
#include <linux/netfilter_arp.h>
#include <linux/in_route.h>
#include <linux/inetdevice.h>
#include <net/ip.h>
#include <net/ipv6.h>
#include <net/route.h>
#include <asm/uaccess.h>
#include "br_private.h"

Go to the source code of this file.

Macros
#define	skb_origaddr(skb)
#define	store_orig_dstaddr(skb)   (skb_origaddr(skb) = ip_hdr(skb)->daddr)
#define	dnat_took_place(skb)   (skb_origaddr(skb) != ip_hdr(skb)->daddr)
#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
#define	brnf_pass_vlan_indev   0
#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))
#define	IS_VLAN_IP(skb)
#define	IS_VLAN_IPV6(skb)
#define	IS_VLAN_ARP(skb)
#define	IS_PPPOE_IP(skb)
#define	IS_PPPOE_IPV6(skb)

Functions
void	br_netfilter_rtable_init (struct net_bridge *br)
int	nf_bridge_copy_header (struct sk_buff *skb)
int __init	br_netfilter_init (void)
void	br_netfilter_fini (void)

Macro Definition Documentation

#define brnf_call_arptables   1

Definition at line 61 of file br_netfilter.c.

#define brnf_call_ip6tables   1

Definition at line 60 of file br_netfilter.c.

#define brnf_call_iptables   1

Definition at line 59 of file br_netfilter.c.

#define brnf_filter_pppoe_tagged   0

Definition at line 63 of file br_netfilter.c.

#define brnf_filter_vlan_tagged   0

Definition at line 62 of file br_netfilter.c.

#define brnf_pass_vlan_indev   0

Definition at line 64 of file br_netfilter.c.

#define dnat_took_place

(

skb

)

(skb_origaddr(skb) != ip_hdr(skb)->daddr)

Definition at line 48 of file br_netfilter.c.

#define IS_ARP

(

skb

)

(!vlan_tx_tag_present(skb) && skb->protocol == htons(ETH_P_ARP))

Definition at line 73 of file br_netfilter.c.

#define IS_IP

(

skb

)

(!vlan_tx_tag_present(skb) && skb->protocol == htons(ETH_P_IP))

Definition at line 67 of file br_netfilter.c.

#define IS_IPV6

(

skb

)

(!vlan_tx_tag_present(skb) && skb->protocol == htons(ETH_P_IPV6))

Definition at line 70 of file br_netfilter.c.

#define IS_PPPOE_IP

(

skb

)

Value:

(skb->protocol == htons(ETH_P_PPP_SES) && \
     pppoe_proto(skb) == htons(PPP_IP) && \
     brnf_filter_pppoe_tagged)

Definition at line 104 of file br_netfilter.c.

#define IS_PPPOE_IPV6

(

skb

)

Value:

(skb->protocol == htons(ETH_P_PPP_SES) && \
     pppoe_proto(skb) == htons(PPP_IPV6) && \
     brnf_filter_pppoe_tagged)

Definition at line 109 of file br_netfilter.c.

#define IS_VLAN_ARP

(

skb

)

Value:

(vlan_proto(skb) == htons(ETH_P_ARP) && \
     brnf_filter_vlan_tagged)

Definition at line 94 of file br_netfilter.c.

#define IS_VLAN_IP

(

skb

)

Value:

(vlan_proto(skb) == htons(ETH_P_IP) && \
     brnf_filter_vlan_tagged)

Definition at line 86 of file br_netfilter.c.

#define IS_VLAN_IPV6

(

skb

)

Value:

(vlan_proto(skb) == htons(ETH_P_IPV6) && \
     brnf_filter_vlan_tagged)

Definition at line 90 of file br_netfilter.c.

#define skb_origaddr

(

skb

)

Value:

(((struct bridge_skb_cb *) \
                 (skb->nf_bridge->data))->daddr.ipv4)

Definition at line 45 of file br_netfilter.c.

#define store_orig_dstaddr

(

skb

)

(skb_origaddr(skb) = ip_hdr(skb)->daddr)

Definition at line 47 of file br_netfilter.c.

Function Documentation

void br_netfilter_fini

(

void

)

Definition at line 1080 of file br_netfilter.c.

int __init br_netfilter_init

(

void

)

Definition at line 1053 of file br_netfilter.c.

void br_netfilter_rtable_init

(

struct net_bridge *

br

)

Definition at line 162 of file br_netfilter.c.

int nf_bridge_copy_header

(

struct sk_buff *

skb

)

Definition at line 326 of file br_netfilter.c.