remove pfring patches

SVN-Revision: 3095

8 files changed, 0 insertions, 8287 deletions

diff --git a/openwrt/target/linux/ar531x-2.4/config b/openwrt/target/linux/ar531x-2.4/config
index e48d8d0..4cf9d3b 100644
--- a/openwrt/target/linux/ar531x-2.4/config
+++ b/openwrt/target/linux/ar531x-2.4/config
@@ -313,7 +313,6 @@ CONFIG_NETLINK_DEV=m
 CONFIG_NETFILTER=y
 # CONFIG_NETFILTER_DEBUG is not set
 CONFIG_FILTER=y
-CONFIG_RING=m
 CONFIG_UNIX=y
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
diff --git a/openwrt/target/linux/aruba-2.6/config b/openwrt/target/linux/aruba-2.6/config
index 804a26f..17ea6b3 100644
--- a/openwrt/target/linux/aruba-2.6/config
+++ b/openwrt/target/linux/aruba-2.6/config
@@ -240,7 +240,6 @@ CONFIG_PACKET=y
 CONFIG_PACKET_MMAP=y
 CONFIG_UNIX=y
 # CONFIG_NET_KEY is not set
-CONFIG_RING=m
 CONFIG_INET=y
 # CONFIG_IP_MULTICAST is not set
 # CONFIG_IP_ADVANCED_ROUTER is not set
diff --git a/openwrt/target/linux/brcm-2.4/config b/openwrt/target/linux/brcm-2.4/config
index d40fc72..b6120eb 100644
--- a/openwrt/target/linux/brcm-2.4/config
+++ b/openwrt/target/linux/brcm-2.4/config
@@ -321,7 +321,6 @@ CONFIG_NETLINK_DEV=m
 CONFIG_NETFILTER=y
 # CONFIG_NETFILTER_DEBUG is not set
 CONFIG_FILTER=y
-CONFIG_RING=m
 CONFIG_UNIX=y
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
diff --git a/openwrt/target/linux/brcm-2.6/config b/openwrt/target/linux/brcm-2.6/config
index 9a67406..837aee8 100644
--- a/openwrt/target/linux/brcm-2.6/config
+++ b/openwrt/target/linux/brcm-2.6/config
@@ -252,7 +252,6 @@ CONFIG_UNIX=y
 CONFIG_XFRM=y
 # CONFIG_XFRM_USER is not set
 # CONFIG_NET_KEY is not set
-CONFIG_RING=y
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_ADVANCED_ROUTER=y
diff --git a/openwrt/target/linux/generic-2.4/modules.mk b/openwrt/target/linux/generic-2.4/modules.mk
index e65ef81..705b702 100644
--- a/openwrt/target/linux/generic-2.4/modules.mk
+++ b/openwrt/target/linux/generic-2.4/modules.mk
@@ -50,11 +50,6 @@ $(eval $(call KMOD_template,TUN,tun,\
 	$(MODULES_DIR)/kernel/drivers/net/tun.o \
 ,CONFIG_TUN,,20,tun))
 
-$(eval $(call KMOD_template,RING,ring,\
-	$(MODULES_DIR)/kernel/net/ring/ring.o \
-,CONFIG_RING,,20,ring))
-
-
 # Filtering / Firewalling
 
 $(eval $(call KMOD_template,ARPTABLES,arptables,\
diff --git a/openwrt/target/linux/generic-2.4/patches/223-pf_ring.patch b/openwrt/target/linux/generic-2.4/patches/223-pf_ring.patch
deleted file mode 100644
index 1235e10..0000000
--- a/openwrt/target/linux/generic-2.4/patches/223-pf_ring.patch
+++ /dev/null
@@ -1,6444 +0,0 @@
-diff --unified --recursive --new-file linux-2.4.30/include/linux/ring.h linux-2.4.30-1-686-smp-ring3/include/linux/ring.h
---- linux-2.4.30/include/linux/ring.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.30-1-686-smp-ring3/include/linux/ring.h	2005-10-22 23:08:27.388011250 +0200
-@@ -0,0 +1,108 @@
-+/*
-+ * Definitions for packet ring
-+ *
-+ * 2004 - Luca Deri <deri@ntop.org>
-+ */
-+#ifndef __RING_H
-+#define __RING_H
-+
-+
-+#define INCLUDE_MAC_INFO
-+
-+#ifdef INCLUDE_MAC_INFO
-+#define SKB_DISPLACEMENT    14 /* Include MAC address information */
-+#else
-+#define SKB_DISPLACEMENT    0  /* Do NOT include MAC address information */
-+#endif
-+
-+#define RING_MAGIC
-+#define RING_MAGIC_VALUE      0x88
-+#define RING_FLOWSLOT_VERSION    5
-+#define RING_VERSION          "3.0"
-+
-+#define SO_ADD_TO_CLUSTER        99
-+#define SO_REMOVE_FROM_CLUSTER  100
-+#define SO_SET_REFLECTOR        101
-+
-+/* *********************************** */
-+
-+#ifndef HAVE_PCAP
-+struct pcap_pkthdr {
-+  struct timeval ts;    /* time stamp */
-+  u_int32_t caplen;     /* length of portion present */
-+  u_int32_t len;        /* length this packet (off wire) */
-+};
-+#endif
-+
-+/* *********************************** */
-+
-+enum cluster_type {
-+  cluster_per_flow = 0,
-+  cluster_round_robin
-+};
-+
-+/* *********************************** */
-+
-+#define RING_MIN_SLOT_SIZE    (60+sizeof(struct pcap_pkthdr))
-+#define RING_MAX_SLOT_SIZE    (1514+sizeof(struct pcap_pkthdr))
-+
-+/* *********************************** */
-+
-+typedef struct flowSlotInfo {
-+  u_int16_t version, sample_rate;
-+  u_int32_t tot_slots, slot_len, tot_mem;
-+  
-+  u_int64_t tot_pkts, tot_lost;
-+  u_int64_t tot_insert, tot_read;  
-+  u_int16_t insert_idx;
-+  u_int16_t remove_idx;
-+} FlowSlotInfo;
-+
-+/* *********************************** */
-+
-+typedef struct flowSlot {
-+#ifdef RING_MAGIC
-+  u_char     magic;      /* It must alwasy be zero */
-+#endif
-+  u_char     slot_state; /* 0=empty, 1=full   */
-+  u_char     bucket;     /* bucket[bucketLen] */
-+} FlowSlot;
-+
-+/* *********************************** */
-+
-+#ifdef __KERNEL__ 
-+
-+FlowSlotInfo* getRingPtr(void);
-+int allocateRing(char *deviceName, u_int numSlots,
-+		 u_int bucketLen, u_int sampleRate);
-+unsigned int pollRing(struct file *fp, struct poll_table_struct * wait);
-+void deallocateRing(void);
-+
-+/* ************************* */
-+
-+typedef int (*handle_ring_skb)(struct sk_buff *skb,
-+			       u_char recv_packet, u_char real_skb);
-+extern handle_ring_skb get_skb_ring_handler(void);
-+extern void set_skb_ring_handler(handle_ring_skb the_handler);
-+extern void do_skb_ring_handler(struct sk_buff *skb,
-+				u_char recv_packet, u_char real_skb);
-+
-+typedef int (*handle_ring_buffer)(struct net_device *dev, 
-+				     char *data, int len);
-+extern handle_ring_buffer get_buffer_ring_handler(void);
-+extern void set_buffer_ring_handler(handle_ring_buffer the_handler);
-+extern int do_buffer_ring_handler(struct net_device *dev,
-+				  char *data, int len);
-+#endif /* __KERNEL__  */
-+
-+/* *********************************** */
-+
-+#define PF_RING          27      /* Packet Ring */
-+#define SOCK_RING        PF_RING
-+
-+/* ioctl() */
-+#define SIORINGPOLL      0x8888
-+
-+/* *********************************** */
-+
-+#endif /* __RING_H */
-diff --unified --recursive --new-file linux-2.4.30/include/net/sock.h linux-2.4.30-1-686-smp-ring3/include/net/sock.h
---- linux-2.4.30/include/net/sock.h	2004-11-17 12:54:22.000000000 +0100
-+++ linux-2.4.30-1-686-smp-ring3/include/net/sock.h	2005-10-22 23:08:27.976048000 +0200
-@@ -699,6 +699,9 @@
- #if defined (CONFIG_PACKET) || defined(CONFIG_PACKET_MODULE)
- 		struct packet_opt	*af_packet;
- #endif
-+#if defined(CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+	  struct ring_opt *pf_ring;
-+#endif
- #if defined(CONFIG_X25) || defined(CONFIG_X25_MODULE)
- 		x25_cb			*x25;
- #endif
-diff --unified --recursive --new-file linux-2.4.30/include/net/sock.h.ORG linux-2.4.30-1-686-smp-ring3/include/net/sock.h.ORG
---- linux-2.4.30/include/net/sock.h.ORG	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.30-1-686-smp-ring3/include/net/sock.h.ORG	2005-10-22 23:08:27.940045750 +0200
-@@ -0,0 +1,1400 @@
-+/*
-+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
-+ *		operating system.  INET is implemented using the  BSD Socket
-+ *		interface as the means of communication with the user level.
-+ *
-+ *		Definitions for the AF_INET socket handler.
-+ *
-+ * Version:	@(#)sock.h	1.0.4	05/13/93
-+ *
-+ * Authors:	Ross Biro, <bir7@leland.Stanford.Edu>
-+ *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
-+ *		Corey Minyard <wf-rch!minyard@relay.EU.net>
-+ *		Florian La Roche <flla@stud.uni-sb.de>
-+ *
-+ * Fixes:
-+ *		Alan Cox	:	Volatiles in skbuff pointers. See
-+ *					skbuff comments. May be overdone,
-+ *					better to prove they can be removed
-+ *					than the reverse.
-+ *		Alan Cox	:	Added a zapped field for tcp to note
-+ *					a socket is reset and must stay shut up
-+ *		Alan Cox	:	New fields for options
-+ *	Pauline Middelink	:	identd support
-+ *		Alan Cox	:	Eliminate low level recv/recvfrom
-+ *		David S. Miller	:	New socket lookup architecture.
-+ *              Steve Whitehouse:       Default routines for sock_ops
-+ *
-+ *		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 Free Software Foundation; either version
-+ *		2 of the License, or (at your option) any later version.
-+ */
-+#ifndef _SOCK_H
-+#define _SOCK_H
-+
-+#include <linux/config.h>
-+#include <linux/timer.h>
-+#include <linux/cache.h>
-+#include <linux/in.h>		/* struct sockaddr_in */
-+
-+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-+#include <linux/in6.h>		/* struct sockaddr_in6 */
-+#include <linux/ipv6.h>		/* dest_cache, inet6_options */
-+#include <linux/icmpv6.h>
-+#include <net/if_inet6.h>	/* struct ipv6_mc_socklist */
-+#endif
-+
-+#if defined(CONFIG_INET) || defined (CONFIG_INET_MODULE)
-+#include <linux/icmp.h>
-+#endif
-+#include <linux/tcp.h>		/* struct tcphdr */
-+#if defined(CONFIG_IP_SCTP) || defined (CONFIG_IP_SCTP_MODULE)
-+#include <net/sctp/structs.h>	/* struct sctp_opt */
-+#endif
-+
-+#include <linux/netdevice.h>
-+#include <linux/skbuff.h>	/* struct sk_buff */
-+#include <net/protocol.h>		/* struct inet_protocol */
-+#if defined(CONFIG_X25) || defined(CONFIG_X25_MODULE)
-+#include <net/x25.h>
-+#endif
-+#if defined(CONFIG_WAN_ROUTER) || defined(CONFIG_WAN_ROUTER_MODULE)
-+#include <linux/if_wanpipe.h>
-+#endif
-+
-+#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
-+#include <net/ax25.h>
-+#if defined(CONFIG_NETROM) || defined(CONFIG_NETROM_MODULE)
-+#include <net/netrom.h>
-+#endif
-+#if defined(CONFIG_ROSE) || defined(CONFIG_ROSE_MODULE)
-+#include <net/rose.h>
-+#endif
-+#endif
-+
-+#if defined(CONFIG_PPPOE) || defined(CONFIG_PPPOE_MODULE)
-+#include <linux/if_pppox.h>
-+#include <linux/ppp_channel.h>   /* struct ppp_channel */
-+#endif
-+
-+#if defined(CONFIG_IPX) || defined(CONFIG_IPX_MODULE)
-+#if defined(CONFIG_SPX) || defined(CONFIG_SPX_MODULE)
-+#include <net/spx.h>
-+#else
-+#include <net/ipx.h>
-+#endif /* CONFIG_SPX */
-+#endif /* CONFIG_IPX */
-+
-+#if defined(CONFIG_ATALK) || defined(CONFIG_ATALK_MODULE)
-+#include <linux/atalk.h>
-+#endif
-+
-+#if defined(CONFIG_DECNET) || defined(CONFIG_DECNET_MODULE)
-+#include <net/dn.h>
-+#endif
-+
-+#if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)
-+#include <net/irda/irda.h>
-+#endif
-+
-+#if defined(CONFIG_ATM) || defined(CONFIG_ATM_MODULE)
-+struct atm_vcc;
-+#endif
-+
-+#ifdef CONFIG_FILTER
-+#include <linux/filter.h>
-+#endif
-+
-+#include <asm/atomic.h>
-+#include <net/dst.h>
-+
-+
-+/* The AF_UNIX specific socket options */
-+struct unix_opt {
-+	struct unix_address	*addr;
-+	struct dentry *		dentry;
-+	struct vfsmount *	mnt;
-+	struct semaphore	readsem;
-+	struct sock *		other;
-+	struct sock **		list;
-+	struct sock *		gc_tree;
-+	atomic_t		inflight;
-+	rwlock_t		lock;
-+	wait_queue_head_t	peer_wait;
-+};
-+
-+
-+/* Once the IPX ncpd patches are in these are going into protinfo. */
-+#if defined(CONFIG_IPX) || defined(CONFIG_IPX_MODULE)
-+struct ipx_opt {
-+	ipx_address		dest_addr;
-+	ipx_interface		*intrfc;
-+	unsigned short		port;
-+#ifdef CONFIG_IPX_INTERN
-+	unsigned char           node[IPX_NODE_LEN];
-+#endif
-+	unsigned short		type;
-+/* 
-+ * To handle special ncp connection-handling sockets for mars_nwe,
-+ * the connection number must be stored in the socket.
-+ */
-+	unsigned short		ipx_ncp_conn;
-+};
-+#endif
-+
-+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-+struct ipv6_pinfo {
-+	struct in6_addr 	saddr;
-+	struct in6_addr 	rcv_saddr;
-+	struct in6_addr		daddr;
-+	struct in6_addr		*daddr_cache;
-+
-+	__u32			flow_label;
-+	__u32			frag_size;
-+	int			hop_limit;
-+	int			mcast_hops;
-+	int			mcast_oif;
-+
-+	/* pktoption flags */
-+	union {
-+		struct {
-+			__u8	srcrt:2,
-+			        rxinfo:1,
-+				rxhlim:1,
-+				hopopts:1,
-+				dstopts:1,
-+                                authhdr:1,
-+                                rxflow:1;
-+		} bits;
-+		__u8		all;
-+	} rxopt;
-+
-+	/* sockopt flags */
-+	__u8			mc_loop:1,
-+	                        recverr:1,
-+	                        sndflow:1,
-+	                        pmtudisc:2,
-+				ipv6only:1;
-+
-+	struct ipv6_mc_socklist	*ipv6_mc_list;
-+	struct ipv6_ac_socklist	*ipv6_ac_list;
-+	struct ipv6_fl_socklist *ipv6_fl_list;
-+	__u32			dst_cookie;
-+
-+	struct ipv6_txoptions	*opt;
-+	struct sk_buff		*pktoptions;
-+};
-+
-+struct raw6_opt {
-+	__u32			checksum;	/* perform checksum */
-+	__u32			offset;		/* checksum offset  */
-+
-+	struct icmp6_filter	filter;
-+};
-+
-+#define __ipv6_only_sock(sk)	((sk)->net_pinfo.af_inet6.ipv6only)
-+#define ipv6_only_sock(sk)	((sk)->family == PF_INET6 && \
-+				 (sk)->net_pinfo.af_inet6.ipv6only)
-+#else
-+#define __ipv6_only_sock(sk)	0
-+#define ipv6_only_sock(sk)	0
-+#endif /* IPV6 */
-+
-+#if defined(CONFIG_INET) || defined(CONFIG_INET_MODULE)
-+struct raw_opt {
-+	struct icmp_filter	filter;
-+};
-+#endif
-+
-+#if defined(CONFIG_INET) || defined (CONFIG_INET_MODULE)
-+struct inet_opt
-+{
-+	int			ttl;			/* TTL setting */
-+	int			tos;			/* TOS */
-+	unsigned	   	cmsg_flags;
-+	struct ip_options	*opt;
-+	unsigned char		hdrincl;		/* Include headers ? */
-+	__u8			mc_ttl;			/* Multicasting TTL */
-+	__u8			mc_loop;		/* Loopback */
-+	unsigned		recverr : 1,
-+				freebind : 1;
-+	__u16			id;			/* ID counter for DF pkts */
-+	__u8			pmtudisc;
-+	int			mc_index;		/* Multicast device index */
-+	__u32			mc_addr;
-+	struct ip_mc_socklist	*mc_list;		/* Group array */
-+};
-+#endif
-+
-+#if defined(CONFIG_PPPOE) || defined (CONFIG_PPPOE_MODULE)
-+struct pppoe_opt
-+{
-+	struct net_device      *dev;	  /* device associated with socket*/
-+	struct pppoe_addr	pa;	  /* what this socket is bound to*/
-+	struct sockaddr_pppox	relay;	  /* what socket data will be
-+					     relayed to (PPPoE relaying) */
-+};
-+
-+struct pppox_opt
-+{
-+	struct ppp_channel	chan;
-+	struct sock		*sk;
-+	struct pppox_opt	*next;	  /* for hash table */
-+	union {
-+		struct pppoe_opt pppoe;
-+	} proto;
-+};
-+#define pppoe_dev	proto.pppoe.dev
-+#define pppoe_pa	proto.pppoe.pa
-+#define pppoe_relay	proto.pppoe.relay
-+#endif
-+
-+/* This defines a selective acknowledgement block. */
-+struct tcp_sack_block {
-+	__u32	start_seq;
-+	__u32	end_seq;
-+};
-+
-+enum tcp_congestion_algo {
-+ 	TCP_RENO=0,
-+ 	TCP_VEGAS,
-+ 	TCP_WESTWOOD,
-+ 	TCP_BIC,
-+};
-+ 
-+struct tcp_opt {
-+	int	tcp_header_len;	/* Bytes of tcp header to send		*/
-+
-+/*
-+ *	Header prediction flags
-+ *	0x5?10 << 16 + snd_wnd in net byte order
-+ */
-+	__u32	pred_flags;
-+
-+/*
-+ *	RFC793 variables by their proper names. This means you can
-+ *	read the code and the spec side by side (and laugh ...)
-+ *	See RFC793 and RFC1122. The RFC writes these in capitals.
-+ */
-+ 	__u32	rcv_nxt;	/* What we want to receive next 	*/
-+ 	__u32	snd_nxt;	/* Next sequence we send		*/
-+
-+ 	__u32	snd_una;	/* First byte we want an ack for	*/
-+ 	__u32	snd_sml;	/* Last byte of the most recently transmitted small packet */
-+	__u32	rcv_tstamp;	/* timestamp of last received ACK (for keepalives) */
-+	__u32	lsndtime;	/* timestamp of last sent data packet (for restart window) */
-+
-+	/* Delayed ACK control data */
-+	struct {
-+		__u8	pending;	/* ACK is pending */
-+		__u8	quick;		/* Scheduled number of quick acks	*/
-+		__u8	pingpong;	/* The session is interactive		*/
-+		__u8	blocked;	/* Delayed ACK was blocked by socket lock*/
-+		__u32	ato;		/* Predicted tick of soft clock		*/
-+		unsigned long timeout;	/* Currently scheduled timeout		*/
-+		__u32	lrcvtime;	/* timestamp of last received data packet*/
-+		__u16	last_seg_size;	/* Size of last incoming segment	*/
-+		__u16	rcv_mss;	/* MSS used for delayed ACK decisions	*/ 
-+	} ack;
-+
-+	/* Data for direct copy to user */
-+	struct {
-+		struct sk_buff_head	prequeue;
-+		struct task_struct	*task;
-+		struct iovec		*iov;
-+		int			memory;
-+		int			len;
-+	} ucopy;
-+
-+	__u32	snd_wl1;	/* Sequence for window update		*/
-+	__u32	snd_wnd;	/* The window we expect to receive	*/
-+	__u32	max_window;	/* Maximal window ever seen from peer	*/
-+	__u32	pmtu_cookie;	/* Last pmtu seen by socket		*/
-+	__u16	mss_cache;	/* Cached effective mss, not including SACKS */
-+	__u16	mss_clamp;	/* Maximal mss, negotiated at connection setup */
-+	__u16	ext_header_len;	/* Network protocol overhead (IP/IPv6 options) */
-+	__u8	ca_state;	/* State of fast-retransmit machine 	*/
-+	__u8	retransmits;	/* Number of unrecovered RTO timeouts.	*/
-+
-+	__u8	reordering;	/* Packet reordering metric.		*/
-+	__u8	queue_shrunk;	/* Write queue has been shrunk recently.*/
-+	__u8	defer_accept;	/* User waits for some data after accept() */
-+
-+/* RTT measurement */
-+	__u8	backoff;	/* backoff				*/
-+	__u32	srtt;		/* smothed round trip time << 3		*/
-+	__u32	mdev;		/* medium deviation			*/
-+	__u32	mdev_max;	/* maximal mdev for the last rtt period	*/
-+	__u32	rttvar;		/* smoothed mdev_max			*/
-+	__u32	rtt_seq;	/* sequence number to update rttvar	*/
-+	__u32	rto;		/* retransmit timeout			*/
-+
-+	__u32	packets_out;	/* Packets which are "in flight"	*/
-+	__u32	left_out;	/* Packets which leaved network		*/
-+	__u32	retrans_out;	/* Retransmitted packets out		*/
-+
-+
-+/*
-+ *	Slow start and congestion control (see also Nagle, and Karn & Partridge)
-+ */
-+ 	__u32	snd_ssthresh;	/* Slow start size threshold		*/
-+ 	__u32	snd_cwnd;	/* Sending congestion window		*/
-+ 	__u16	snd_cwnd_cnt;	/* Linear increase counter		*/
-+	__u16	snd_cwnd_clamp; /* Do not allow snd_cwnd to grow above this */
-+	__u32	snd_cwnd_used;
-+	__u32	snd_cwnd_stamp;
-+
-+	/* Two commonly used timers in both sender and receiver paths. */
-+	unsigned long		timeout;
-+ 	struct timer_list	retransmit_timer;	/* Resend (no ack)	*/
-+ 	struct timer_list	delack_timer;		/* Ack delay 		*/
-+
-+	struct sk_buff_head	out_of_order_queue; /* Out of order segments go here */
-+
-+	struct tcp_func		*af_specific;	/* Operations which are AF_INET{4,6} specific	*/
-+	struct sk_buff		*send_head;	/* Front of stuff to transmit			*/
-+	struct page		*sndmsg_page;	/* Cached page for sendmsg			*/
-+	u32			sndmsg_off;	/* Cached offset for sendmsg			*/
-+
-+ 	__u32	rcv_wnd;	/* Current receiver window		*/
-+	__u32	rcv_wup;	/* rcv_nxt on last window update sent	*/
-+	__u32	write_seq;	/* Tail(+1) of data held in tcp send buffer */
-+	__u32	pushed_seq;	/* Last pushed seq, required to talk to windows */
-+	__u32	copied_seq;	/* Head of yet unread data		*/
-+/*
-+ *      Options received (usually on last packet, some only on SYN packets).
-+ */
-+	char	tstamp_ok,	/* TIMESTAMP seen on SYN packet		*/
-+		wscale_ok,	/* Wscale seen on SYN packet		*/
-+		sack_ok;	/* SACK seen on SYN packet		*/
-+	char	saw_tstamp;	/* Saw TIMESTAMP on last packet		*/
-+        __u8	snd_wscale;	/* Window scaling received from sender	*/
-+        __u8	rcv_wscale;	/* Window scaling to send to receiver	*/
-+	__u8	nonagle;	/* Disable Nagle algorithm?             */
-+	__u8	keepalive_probes; /* num of allowed keep alive probes	*/
-+
-+/*	PAWS/RTTM data	*/
-+        __u32	rcv_tsval;	/* Time stamp value             	*/
-+        __u32	rcv_tsecr;	/* Time stamp echo reply        	*/
-+        __u32	ts_recent;	/* Time stamp to echo next		*/
-+        long	ts_recent_stamp;/* Time we stored ts_recent (for aging) */
-+
-+/*	SACKs data	*/
-+	__u16	user_mss;  	/* mss requested by user in ioctl */
-+	__u8	dsack;		/* D-SACK is scheduled			*/
-+	__u8	eff_sacks;	/* Size of SACK array to send with next packet */
-+	struct tcp_sack_block duplicate_sack[1]; /* D-SACK block */
-+	struct tcp_sack_block selective_acks[4]; /* The SACKS themselves*/
-+
-+	__u32	window_clamp;	/* Maximal window to advertise		*/
-+	__u32	rcv_ssthresh;	/* Current window clamp			*/
-+	__u8	probes_out;	/* unanswered 0 window probes		*/
-+	__u8	num_sacks;	/* Number of SACK blocks		*/
-+	__u16	advmss;		/* Advertised MSS			*/
-+
-+	__u8	syn_retries;	/* num of allowed syn retries */
-+	__u8	ecn_flags;	/* ECN status bits.			*/
-+	__u16	prior_ssthresh; /* ssthresh saved at recovery start	*/
-+	__u32	lost_out;	/* Lost packets				*/
-+	__u32	sacked_out;	/* SACK'd packets			*/
-+	__u32	fackets_out;	/* FACK'd packets			*/
-+	__u32	high_seq;	/* snd_nxt at onset of congestion	*/
-+
-+	__u32	retrans_stamp;	/* Timestamp of the last retransmit,
-+				 * also used in SYN-SENT to remember stamp of
-+				 * the first SYN. */
-+	__u32	undo_marker;	/* tracking retrans started here. */
-+	int	undo_retrans;	/* number of undoable retransmissions. */
-+	__u32	urg_seq;	/* Seq of received urgent pointer */
-+	__u16	urg_data;	/* Saved octet of OOB data and control flags */
-+	__u8	pending;	/* Scheduled timer event	*/
-+	__u8	urg_mode;	/* In urgent mode		*/
-+	__u32	snd_up;		/* Urgent pointer		*/
-+
-+	/* The syn_wait_lock is necessary only to avoid tcp_get_info having
-+	 * to grab the main lock sock while browsing the listening hash
-+	 * (otherwise it's deadlock prone).
-+	 * This lock is acquired in read mode only from tcp_get_info() and
-+	 * it's acquired in write mode _only_ from code that is actively
-+	 * changing the syn_wait_queue. All readers that are holding
-+	 * the master sock lock don't need to grab this lock in read mode
-+	 * too as the syn_wait_queue writes are always protected from
-+	 * the main sock lock.
-+	 */
-+	rwlock_t		syn_wait_lock;
-+	struct tcp_listen_opt	*listen_opt;
-+
-+	/* FIFO of established children */
-+	struct open_request	*accept_queue;
-+	struct open_request	*accept_queue_tail;
-+
-+	int			write_pending;	/* A write to socket waits to start. */
-+
-+	unsigned int		keepalive_time;	  /* time before keep alive takes place */
-+	unsigned int		keepalive_intvl;  /* time interval between keep alive probes */
-+	int			linger2;
-+
-+	__u8			adv_cong;    /* Using Vegas, Westwood, or BIC */
-+	__u8                    frto_counter; /* Number of new acks after RTO */
-+	__u32                   frto_highmark; /* snd_nxt when RTO occurred */
-+
-+	unsigned long last_synq_overflow; 
-+
-+/* Receiver side RTT estimation */
-+	struct {
-+		__u32	rtt;
-+		__u32	seq;
-+		__u32	time;
-+	} rcv_rtt_est;
-+
-+/* Receiver queue space */
-+	struct {
-+		int	space;
-+		__u32	seq;
-+		__u32	time;
-+	} rcvq_space;
-+
-+/* TCP Westwood structure */
-+        struct {
-+                __u32    bw_ns_est;        /* first bandwidth estimation..not too smoothed 8) */
-+                __u32    bw_est;           /* bandwidth estimate */
-+                __u32    rtt_win_sx;       /* here starts a new evaluation... */
-+                __u32    bk;
-+                __u32    snd_una;          /* used for evaluating the number of acked bytes */
-+                __u32    cumul_ack;
-+                __u32    accounted;
-+                __u32    rtt;
-+                __u32    rtt_min;          /* minimum observed RTT */
-+        } westwood;
-+
-+/* Vegas variables */
-+	struct {
-+		__u32	beg_snd_nxt;	/* right edge during last RTT */
-+		__u32	beg_snd_una;	/* left edge  during last RTT */
-+		__u32	beg_snd_cwnd;	/* saves the size of the cwnd */
-+		__u8	doing_vegas_now;/* if true, do vegas for this RTT */
-+		__u16	cntRTT;		/* # of RTTs measured within last RTT */
-+		__u32	minRTT;		/* min of RTTs measured within last RTT (in usec) */
-+		__u32	baseRTT;	/* the min of all Vegas RTT measurements seen (in usec) */
-+	} vegas;
-+
-+	/* BI TCP Parameters */
-+	struct {
-+		__u32	cnt;		/* increase cwnd by 1 after this number of ACKs */
-+		__u32 	last_max_cwnd;	/* last maximium snd_cwnd */
-+		__u32	last_cwnd;	/* the last snd_cwnd */
-+		__u32   last_stamp;     /* time when updated last_cwnd */
-+	} bictcp;
-+};
-+
-+ 	
-+/*
-+ * This structure really needs to be cleaned up.
-+ * Most of it is for TCP, and not used by any of
-+ * the other protocols.
-+ */
-+
-+/*
-+ * The idea is to start moving to a newer struct gradualy
-+ * 
-+ * IMHO the newer struct should have the following format:
-+ * 
-+ *	struct sock {
-+ *		sockmem [mem, proto, callbacks]
-+ *
-+ *		union or struct {
-+ *			ax25;
-+ *		} ll_pinfo;
-+ *	
-+ *		union {
-+ *			ipv4;
-+ *			ipv6;
-+ *			ipx;
-+ *			netrom;
-+ *			rose;
-+ * 			x25;
-+ *		} net_pinfo;
-+ *
-+ *		union {
-+ *			tcp;
-+ *			udp;
-+ *			spx;
-+ *			netrom;
-+ *		} tp_pinfo;
-+ *
-+ *	}
-+ *
-+ * The idea failed because IPv6 transition asssumes dual IP/IPv6 sockets.
-+ * So, net_pinfo is IPv6 are really, and protinfo unifies all another
-+ * private areas.
-+ */
-+
-+/* Define this to get the sk->debug debugging facility. */
-+#define SOCK_DEBUGGING
-+#ifdef SOCK_DEBUGGING
-+#define SOCK_DEBUG(sk, msg...) do { if((sk) && ((sk)->debug)) printk(KERN_DEBUG msg); } while (0)
-+#else
-+#define SOCK_DEBUG(sk, msg...) do { } while (0)
-+#endif
-+
-+/* This is the per-socket lock.  The spinlock provides a synchronization
-+ * between user contexts and software interrupt processing, whereas the
-+ * mini-semaphore synchronizes multiple users amongst themselves.
-+ */
-+typedef struct {
-+	spinlock_t		slock;
-+	unsigned int		users;
-+	wait_queue_head_t	wq;
-+} socket_lock_t;
-+
-+#define sock_lock_init(__sk) \
-+do {	spin_lock_init(&((__sk)->lock.slock)); \
-+	(__sk)->lock.users = 0; \
-+	init_waitqueue_head(&((__sk)->lock.wq)); \
-+} while(0)
-+
-+struct sock {
-+	/* Socket demultiplex comparisons on incoming packets. */
-+	__u32			daddr;		/* Foreign IPv4 addr			*/
-+	__u32			rcv_saddr;	/* Bound local IPv4 addr		*/
-+	__u16			dport;		/* Destination port			*/
-+	unsigned short		num;		/* Local port				*/
-+	int			bound_dev_if;	/* Bound device index if != 0		*/
-+
-+	/* Main hash linkage for various protocol lookup tables. */
-+	struct sock		*next;
-+	struct sock		**pprev;
-+	struct sock		*bind_next;
-+	struct sock		**bind_pprev;
-+
-+	volatile unsigned char	state,		/* Connection state			*/
-+				zapped;		/* In ax25 & ipx means not linked	*/
-+	__u16			sport;		/* Source port				*/
-+
-+	unsigned short		family;		/* Address family			*/
-+	unsigned char		reuse;		/* SO_REUSEADDR setting			*/
-+	unsigned char		shutdown;
-+	atomic_t		refcnt;		/* Reference count			*/
-+
-+	socket_lock_t		lock;		/* Synchronizer...			*/
-+	int			rcvbuf;		/* Size of receive buffer in bytes	*/
-+
-+	wait_queue_head_t	*sleep;		/* Sock wait queue			*/
-+	struct dst_entry	*dst_cache;	/* Destination cache			*/
-+	rwlock_t		dst_lock;
-+	atomic_t		rmem_alloc;	/* Receive queue bytes committed	*/
-+	struct sk_buff_head	receive_queue;	/* Incoming packets			*/
-+	atomic_t		wmem_alloc;	/* Transmit queue bytes committed	*/
-+	struct sk_buff_head	write_queue;	/* Packet sending queue			*/
-+	atomic_t		omem_alloc;	/* "o" is "option" or "other" */
-+	int			wmem_queued;	/* Persistent queue size */
-+	int			forward_alloc;	/* Space allocated forward. */
-+	__u32			saddr;		/* Sending source			*/
-+	unsigned int		allocation;	/* Allocation mode			*/
-+	int			sndbuf;		/* Size of send buffer in bytes		*/
-+	struct sock		*prev;
-+
-+	/* Not all are volatile, but some are, so we might as well say they all are.
-+	 * XXX Make this a flag word -DaveM
-+	 */
-+	volatile char		dead,
-+				done,
-+				urginline,
-+				keepopen,
-+				linger,
-+				destroy,
-+				no_check,
-+				broadcast,
-+				bsdism;
-+	unsigned char		debug;
-+	unsigned char		rcvtstamp;
-+	unsigned char		use_write_queue;
-+	unsigned char		userlocks;
-+	/* Hole of 3 bytes. Try to pack. */
-+	int			route_caps;
-+	int			proc;
-+	unsigned long	        lingertime;
-+
-+	int			hashent;
-+	struct sock		*pair;
-+
-+	/* The backlog queue is special, it is always used with
-+	 * the per-socket spinlock held and requires low latency
-+	 * access.  Therefore we special case it's implementation.
-+	 */
-+	struct {
-+		struct sk_buff *head;
-+		struct sk_buff *tail;
-+	} backlog;
-+
-+	rwlock_t		callback_lock;
-+
-+	/* Error queue, rarely used. */
-+	struct sk_buff_head	error_queue;
-+
-+	struct proto		*prot;
-+
-+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-+	union {
-+		struct ipv6_pinfo	af_inet6;
-+	} net_pinfo;
-+#endif
-+
-+	union {
-+		struct tcp_opt		af_tcp;
-+#if defined(CONFIG_IP_SCTP) || defined (CONFIG_IP_SCTP_MODULE)
-+		struct sctp_opt		af_sctp;
-+#endif
-+#if defined(CONFIG_INET) || defined (CONFIG_INET_MODULE)
-+		struct raw_opt		tp_raw4;
-+#endif
-+#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
-+		struct raw6_opt		tp_raw;
-+#endif /* CONFIG_IPV6 */
-+#if defined(CONFIG_SPX) || defined (CONFIG_SPX_MODULE)
-+		struct spx_opt		af_spx;
-+#endif /* CONFIG_SPX */
-+
-+	} tp_pinfo;
-+
-+	int			err, err_soft;	/* Soft holds errors that don't
-+						   cause failure but are the cause
-+						   of a persistent failure not just
-+						   'timed out' */
-+	unsigned short		ack_backlog;
-+	unsigned short		max_ack_backlog;
-+	__u32			priority;
-+	unsigned short		type;
-+	unsigned char		localroute;	/* Route locally only */
-+	unsigned char		protocol;
-+	struct ucred		peercred;
-+	int			rcvlowat;
-+	long			rcvtimeo;
-+	long			sndtimeo;
-+
-+#ifdef CONFIG_FILTER
-+	/* Socket Filtering Instructions */
-+	struct sk_filter      	*filter;
-+#endif /* CONFIG_FILTER */
-+
-+	/* This is where all the private (optional) areas that don't
-+	 * overlap will eventually live. 
-+	 */
-+	union {
-+		void *destruct_hook;
-+	  	struct unix_opt	af_unix;
-+#if defined(CONFIG_INET) || defined (CONFIG_INET_MODULE)
-+		struct inet_opt af_inet;
-+#endif
-+#if defined(CONFIG_ATALK) || defined(CONFIG_ATALK_MODULE)
-+		struct atalk_sock	af_at;
-+#endif
-+#if defined(CONFIG_IPX) || defined(CONFIG_IPX_MODULE)
-+		struct ipx_opt		af_ipx;
-+#endif
-+#if defined (CONFIG_DECNET) || defined(CONFIG_DECNET_MODULE)
-+		struct dn_scp           dn;
-+#endif
-+#if defined (CONFIG_PACKET) || defined(CONFIG_PACKET_MODULE)
-+		struct packet_opt	*af_packet;
-+#endif
-+#if defined(CONFIG_X25) || defined(CONFIG_X25_MODULE)
-+		x25_cb			*x25;
-+#endif
-+#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
-+		ax25_cb			*ax25;
-+#endif
-+#if defined(CONFIG_NETROM) || defined(CONFIG_NETROM_MODULE)
-+		nr_cb			*nr;
-+#endif
-+#if defined(CONFIG_ROSE) || defined(CONFIG_ROSE_MODULE)
-+		rose_cb			*rose;
-+#endif
-+#if defined(CONFIG_PPPOE) || defined(CONFIG_PPPOE_MODULE)
-+		struct pppox_opt	*pppox;
-+#endif
-+		struct netlink_opt	*af_netlink;
-+#if defined(CONFIG_ECONET) || defined(CONFIG_ECONET_MODULE)
-+		struct econet_opt	*af_econet;
-+#endif
-+#if defined(CONFIG_ATM) || defined(CONFIG_ATM_MODULE)
-+		struct atm_vcc		*af_atm;
-+#endif
-+#if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)
-+		struct irda_sock        *irda;
-+#endif
-+#if defined(CONFIG_WAN_ROUTER) || defined(CONFIG_WAN_ROUTER_MODULE)
-+               struct wanpipe_opt      *af_wanpipe;
-+#endif
-+	} protinfo;  		
-+
-+
-+	/* This part is used for the timeout functions. */
-+	struct timer_list	timer;		/* This is the sock cleanup timer. */
-+	struct timeval		stamp;
-+
-+	/* Identd and reporting IO signals */
-+	struct socket		*socket;
-+
-+	/* RPC layer private data */
-+	void			*user_data;
-+  
-+	/* Callbacks */
-+	void			(*state_change)(struct sock *sk);
-+	void			(*data_ready)(struct sock *sk,int bytes);
-+	void			(*write_space)(struct sock *sk);
-+	void			(*error_report)(struct sock *sk);
-+
-+  	int			(*backlog_rcv) (struct sock *sk,
-+						struct sk_buff *skb);  
-+	void                    (*destruct)(struct sock *sk);
-+};
-+
-+/* The per-socket spinlock must be held here. */
-+#define sk_add_backlog(__sk, __skb)			\
-+do {	if((__sk)->backlog.tail == NULL) {		\
-+		(__sk)->backlog.head =			\
-+		     (__sk)->backlog.tail = (__skb);	\
-+	} else {					\
-+		((__sk)->backlog.tail)->next = (__skb);	\
-+		(__sk)->backlog.tail = (__skb);		\
-+	}						\
-+	(__skb)->next = NULL;				\
-+} while(0)
-+
-+/* IP protocol blocks we attach to sockets.
-+ * socket layer -> transport layer interface
-+ * transport -> network interface is defined by struct inet_proto
-+ */
-+struct proto {
-+	void			(*close)(struct sock *sk, 
-+					long timeout);
-+	int			(*connect)(struct sock *sk,
-+				        struct sockaddr *uaddr, 
-+					int addr_len);
-+	int			(*disconnect)(struct sock *sk, int flags);
-+
-+	struct sock *		(*accept) (struct sock *sk, int flags, int *err);
-+
-+	int			(*ioctl)(struct sock *sk, int cmd,
-+					 unsigned long arg);
-+	int			(*init)(struct sock *sk);
-+	int			(*destroy)(struct sock *sk);
-+	void			(*shutdown)(struct sock *sk, int how);
-+	int			(*setsockopt)(struct sock *sk, int level, 
-+					int optname, char *optval, int optlen);
-+	int			(*getsockopt)(struct sock *sk, int level, 
-+					int optname, char *optval, 
-+					int *option);  	 
-+	int			(*sendmsg)(struct sock *sk, struct msghdr *msg,
-+					   int len);
-+	int			(*recvmsg)(struct sock *sk, struct msghdr *msg,
-+					int len, int noblock, int flags, 
-+					int *addr_len);
-+	int			(*bind)(struct sock *sk, 
-+					struct sockaddr *uaddr, int addr_len);
-+
-+	int			(*backlog_rcv) (struct sock *sk, 
-+						struct sk_buff *skb);
-+
-+	/* Keeping track of sk's, looking them up, and port selection methods. */
-+	void			(*hash)(struct sock *sk);
-+	void			(*unhash)(struct sock *sk);
-+	int			(*get_port)(struct sock *sk, unsigned short snum);
-+
-+	char			name[32];
-+
-+	struct {
-+		int inuse;
-+		u8  __pad[SMP_CACHE_BYTES - sizeof(int)];
-+	} stats[NR_CPUS];
-+};
-+
-+/* Called with local bh disabled */
-+static __inline__ void sock_prot_inc_use(struct proto *prot)
-+{
-+	prot->stats[smp_processor_id()].inuse++;
-+}
-+
-+static __inline__ void sock_prot_dec_use(struct proto *prot)
-+{
-+	prot->stats[smp_processor_id()].inuse--;
-+}
-+
-+/* About 10 seconds */
-+#define SOCK_DESTROY_TIME (10*HZ)
-+
-+/* Sockets 0-1023 can't be bound to unless you are superuser */
-+#define PROT_SOCK	1024
-+
-+#define SHUTDOWN_MASK	3
-+#define RCV_SHUTDOWN	1
-+#define SEND_SHUTDOWN	2
-+
-+#define SOCK_SNDBUF_LOCK	1
-+#define SOCK_RCVBUF_LOCK	2
-+#define SOCK_BINDADDR_LOCK	4
-+#define SOCK_BINDPORT_LOCK	8
-+
-+
-+/* Used by processes to "lock" a socket state, so that
-+ * interrupts and bottom half handlers won't change it
-+ * from under us. It essentially blocks any incoming
-+ * packets, so that we won't get any new data or any
-+ * packets that change the state of the socket.
-+ *
-+ * While locked, BH processing will add new packets to
-+ * the backlog queue.  This queue is processed by the
-+ * owner of the socket lock right before it is released.
-+ *
-+ * Since ~2.3.5 it is also exclusive sleep lock serializing
-+ * accesses from user process context.
-+ */
-+extern void __lock_sock(struct sock *sk);
-+extern void __release_sock(struct sock *sk);
-+#define lock_sock(__sk) \
-+do {	spin_lock_bh(&((__sk)->lock.slock)); \
-+	if ((__sk)->lock.users != 0) \
-+		__lock_sock(__sk); \
-+	(__sk)->lock.users = 1; \
-+	spin_unlock_bh(&((__sk)->lock.slock)); \
-+} while(0)
-+
-+#define release_sock(__sk) \
-+do {	spin_lock_bh(&((__sk)->lock.slock)); \
-+	if ((__sk)->backlog.tail != NULL) \
-+		__release_sock(__sk); \
-+	(__sk)->lock.users = 0; \
-+        if (waitqueue_active(&((__sk)->lock.wq))) wake_up(&((__sk)->lock.wq)); \
-+	spin_unlock_bh(&((__sk)->lock.slock)); \
-+} while(0)
-+
-+/* BH context may only use the following locking interface. */
-+#define bh_lock_sock(__sk)	spin_lock(&((__sk)->lock.slock))
-+#define bh_unlock_sock(__sk)	spin_unlock(&((__sk)->lock.slock))
-+
-+extern struct sock *		sk_alloc(int family, int priority, int zero_it);
-+extern void			sk_free(struct sock *sk);
-+
-+extern struct sk_buff		*sock_wmalloc(struct sock *sk,
-+					      unsigned long size, int force,
-+					      int priority);
-+extern struct sk_buff		*sock_rmalloc(struct sock *sk,
-+					      unsigned long size, int force,
-+					      int priority);
-+extern void			sock_wfree(struct sk_buff *skb);
-+extern void			sock_rfree(struct sk_buff *skb);
-+
-+extern int			sock_setsockopt(struct socket *sock, int level,
-+						int op, char *optval,
-+						int optlen);
-+
-+extern int			sock_getsockopt(struct socket *sock, int level,
-+						int op, char *optval, 
-+						int *optlen);
-+extern struct sk_buff 		*sock_alloc_send_skb(struct sock *sk,
-+						     unsigned long size,
-+						     int noblock,
-+						     int *errcode);
-+extern struct sk_buff 		*sock_alloc_send_pskb(struct sock *sk,
-+						      unsigned long header_len,
-+						      unsigned long data_len,
-+						      int noblock,
-+						      int *errcode);
-+extern void *sock_kmalloc(struct sock *sk, int size, int priority);
-+extern void sock_kfree_s(struct sock *sk, void *mem, int size);
-+
-+/*
-+ * Functions to fill in entries in struct proto_ops when a protocol
-+ * does not implement a particular function.
-+ */
-+extern int                      sock_no_release(struct socket *);
-+extern int                      sock_no_bind(struct socket *, 
-+					     struct sockaddr *, int);
-+extern int                      sock_no_connect(struct socket *,
-+						struct sockaddr *, int, int);
-+extern int                      sock_no_socketpair(struct socket *,
-+						   struct socket *);
-+extern int                      sock_no_accept(struct socket *,
-+					       struct socket *, int);
-+extern int                      sock_no_getname(struct socket *,
-+						struct sockaddr *, int *, int);
-+extern unsigned int             sock_no_poll(struct file *, struct socket *,
-+					     struct poll_table_struct *);
-+extern int                      sock_no_ioctl(struct socket *, unsigned int,
-+					      unsigned long);
-+extern int			sock_no_listen(struct socket *, int);
-+extern int                      sock_no_shutdown(struct socket *, int);
-+extern int			sock_no_getsockopt(struct socket *, int , int,
-+						   char *, int *);
-+extern int			sock_no_setsockopt(struct socket *, int, int,
-+						   char *, int);
-+extern int 			sock_no_fcntl(struct socket *, 
-+					      unsigned int, unsigned long);
-+extern int                      sock_no_sendmsg(struct socket *,
-+						struct msghdr *, int,
-+						struct scm_cookie *);
-+extern int                      sock_no_recvmsg(struct socket *,
-+						struct msghdr *, int, int,
-+						struct scm_cookie *);
-+extern int			sock_no_mmap(struct file *file,
-+					     struct socket *sock,
-+					     struct vm_area_struct *vma);
-+extern ssize_t			sock_no_sendpage(struct socket *sock,
-+						struct page *page,
-+						int offset, size_t size, 
-+						int flags);
-+
-+/*
-+ *	Default socket callbacks and setup code
-+ */
-+ 
-+extern void sock_def_destruct(struct sock *);
-+
-+/* Initialise core socket variables */
-+extern void sock_init_data(struct socket *sock, struct sock *sk);
-+
-+extern void sklist_remove_socket(struct sock **list, struct sock *sk);
-+extern void sklist_insert_socket(struct sock **list, struct sock *sk);
-+extern void sklist_destroy_socket(struct sock **list, struct sock *sk);
-+
-+#ifdef CONFIG_FILTER
-+
-+/**
-+ *	sk_filter - run a packet through a socket filter
-+ *	@sk: sock associated with &sk_buff
-+ *	@skb: buffer to filter
-+ *	@needlock: set to 1 if the sock is not locked by caller.
-+ *
-+ * Run the filter code and then cut skb->data to correct size returned by
-+ * sk_run_filter. If pkt_len is 0 we toss packet. If skb->len is smaller
-+ * than pkt_len we keep whole skb->data. This is the socket level
-+ * wrapper to sk_run_filter. It returns 0 if the packet should
-+ * be accepted or -EPERM if the packet should be tossed.
-+ */
-+
-+static inline int sk_filter(struct sock *sk, struct sk_buff *skb, int needlock)
-+{
-+	int err = 0;
-+
-+	if (sk->filter) {
-+		struct sk_filter *filter;
-+		
-+		if (needlock)
-+			bh_lock_sock(sk);
-+		
-+		filter = sk->filter;
-+		if (filter) {
-+			int pkt_len = sk_run_filter(skb, filter->insns,
-+						    filter->len);
-+			if (!pkt_len)
-+				err = -EPERM;
-+			else
-+				skb_trim(skb, pkt_len);
-+		}
-+
-+		if (needlock)
-+			bh_unlock_sock(sk);
-+	}
-+	return err;
-+}
-+
-+/**
-+ *	sk_filter_release: Release a socket filter
-+ *	@sk: socket
-+ *	@fp: filter to remove
-+ *
-+ *	Remove a filter from a socket and release its resources.
-+ */
-+ 
-+static inline void sk_filter_release(struct sock *sk, struct sk_filter *fp)
-+{
-+	unsigned int size = sk_filter_len(fp);
-+
-+	atomic_sub(size, &sk->omem_alloc);
-+
-+	if (atomic_dec_and_test(&fp->refcnt))
-+		kfree(fp);
-+}
-+
-+static inline void sk_filter_charge(struct sock *sk, struct sk_filter *fp)
-+{
-+	atomic_inc(&fp->refcnt);
-+	atomic_add(sk_filter_len(fp), &sk->omem_alloc);
-+}
-+
-+#else
-+
-+static inline int sk_filter(struct sock *sk, struct sk_buff *skb, int needlock)
-+{
-+	return 0;
-+}
-+
-+#endif /* CONFIG_FILTER */
-+
-+/*
-+ * Socket reference counting postulates.
-+ *
-+ * * Each user of socket SHOULD hold a reference count.
-+ * * Each access point to socket (an hash table bucket, reference from a list,
-+ *   running timer, skb in flight MUST hold a reference count.
-+ * * When reference count hits 0, it means it will never increase back.
-+ * * When reference count hits 0, it means that no references from
-+ *   outside exist to this socket and current process on current CPU
-+ *   is last user and may/should destroy this socket.
-+ * * sk_free is called from any context: process, BH, IRQ. When
-+ *   it is called, socket has no references from outside -> sk_free
-+ *   may release descendant resources allocated by the socket, but
-+ *   to the time when it is called, socket is NOT referenced by any
-+ *   hash tables, lists etc.
-+ * * Packets, delivered from outside (from network or from another process)
-+ *   and enqueued on receive/error queues SHOULD NOT grab reference count,
-+ *   when they sit in queue. Otherwise, packets will leak to hole, when
-+ *   socket is looked up by one cpu and unhasing is made by another CPU.
-+ *   It is true for udp/raw, netlink (leak to receive and error queues), tcp
-+ *   (leak to backlog). Packet socket does all the processing inside
-+ *   BR_NETPROTO_LOCK, so that it has not this race condition. UNIX sockets
-+ *   use separate SMP lock, so that they are prone too.
-+ */
-+
-+/* Grab socket reference count. This operation is valid only
-+   when sk is ALREADY grabbed f.e. it is found in hash table
-+   or a list and the lookup is made under lock preventing hash table
-+   modifications.
-+ */
-+
-+static inline void sock_hold(struct sock *sk)
-+{
-+	atomic_inc(&sk->refcnt);
-+}
-+
-+/* Ungrab socket in the context, which assumes that socket refcnt
-+   cannot hit zero, f.e. it is true in context of any socketcall.
-+ */
-+static inline void __sock_put(struct sock *sk)
-+{
-+	atomic_dec(&sk->refcnt);
-+}
-+
-+/* Ungrab socket and destroy it, if it was the last reference. */
-+static inline void sock_put(struct sock *sk)
-+{
-+	if (atomic_dec_and_test(&sk->refcnt))
-+		sk_free(sk);
-+}
-+
-+/* Detach socket from process context.
-+ * Announce socket dead, detach it from wait queue and inode.
-+ * Note that parent inode held reference count on this struct sock,
-+ * we do not release it in this function, because protocol
-+ * probably wants some additional cleanups or even continuing
-+ * to work with this socket (TCP).
-+ */
-+static inline void sock_orphan(struct sock *sk)
-+{
-+	write_lock_bh(&sk->callback_lock);
-+	sk->dead = 1;
-+	sk->socket = NULL;
-+	sk->sleep = NULL;
-+	write_unlock_bh(&sk->callback_lock);
-+}
-+
-+static inline void sock_graft(struct sock *sk, struct socket *parent)
-+{
-+	write_lock_bh(&sk->callback_lock);
-+	sk->sleep = &parent->wait;
-+	parent->sk = sk;
-+	sk->socket = parent;
-+	write_unlock_bh(&sk->callback_lock);
-+}
-+
-+static inline int sock_i_uid(struct sock *sk)
-+{
-+	int uid;
-+
-+	read_lock(&sk->callback_lock);
-+	uid = sk->socket ? sk->socket->inode->i_uid : 0;
-+	read_unlock(&sk->callback_lock);
-+	return uid;
-+}
-+
-+static inline unsigned long sock_i_ino(struct sock *sk)
-+{
-+	unsigned long ino;
-+
-+	read_lock(&sk->callback_lock);
-+	ino = sk->socket ? sk->socket->inode->i_ino : 0;
-+	read_unlock(&sk->callback_lock);
-+	return ino;
-+}
-+
-+static inline struct dst_entry *
-+__sk_dst_get(struct sock *sk)
-+{
-+	return sk->dst_cache;
-+}
-+
-+static inline struct dst_entry *
-+sk_dst_get(struct sock *sk)
-+{
-+	struct dst_entry *dst;
-+
-+	read_lock(&sk->dst_lock);
-+	dst = sk->dst_cache;
-+	if (dst)
-+		dst_hold(dst);
-+	read_unlock(&sk->dst_lock);
-+	return dst;
-+}
-+
-+static inline void
-+__sk_dst_set(struct sock *sk, struct dst_entry *dst)
-+{
-+	struct dst_entry *old_dst;
-+
-+	old_dst = sk->dst_cache;
-+	sk->dst_cache = dst;
-+	dst_release(old_dst);
-+}
-+
-+static inline void
-+sk_dst_set(struct sock *sk, struct dst_entry *dst)
-+{
-+	write_lock(&sk->dst_lock);
-+	__sk_dst_set(sk, dst);
-+	write_unlock(&sk->dst_lock);
-+}
-+
-+static inline void
-+__sk_dst_reset(struct sock *sk)
-+{
-+	struct dst_entry *old_dst;
-+
-+	old_dst = sk->dst_cache;
-+	sk->dst_cache = NULL;
-+	dst_release(old_dst);
-+}
-+
-+static inline void
-+sk_dst_reset(struct sock *sk)
-+{
-+	write_lock(&sk->dst_lock);
-+	__sk_dst_reset(sk);
-+	write_unlock(&sk->dst_lock);
-+}
-+
-+static inline struct dst_entry *
-+__sk_dst_check(struct sock *sk, u32 cookie)
-+{
-+	struct dst_entry *dst = sk->dst_cache;
-+
-+	if (dst && dst->obsolete && dst->ops->check(dst, cookie) == NULL) {
-+		sk->dst_cache = NULL;
-+		return NULL;
-+	}
-+
-+	return dst;
-+}
-+
-+static inline struct dst_entry *
-+sk_dst_check(struct sock *sk, u32 cookie)
-+{
-+	struct dst_entry *dst = sk_dst_get(sk);
-+
-+	if (dst && dst->obsolete && dst->ops->check(dst, cookie) == NULL) {
-+		sk_dst_reset(sk);
-+		return NULL;
-+	}
-+
-+	return dst;
-+}
-+
-+
-+/*
-+ * 	Queue a received datagram if it will fit. Stream and sequenced
-+ *	protocols can't normally use this as they need to fit buffers in
-+ *	and play with them.
-+ *
-+ * 	Inlined as it's very short and called for pretty much every
-+ *	packet ever received.
-+ */
-+
-+static inline void skb_set_owner_w(struct sk_buff *skb, struct sock *sk)
-+{
-+	sock_hold(sk);
-+	skb->sk = sk;
-+	skb->destructor = sock_wfree;
-+	atomic_add(skb->truesize, &sk->wmem_alloc);
-+}
-+
-+static inline void skb_set_owner_r(struct sk_buff *skb, struct sock *sk)
-+{
-+	skb->sk = sk;
-+	skb->destructor = sock_rfree;
-+	atomic_add(skb->truesize, &sk->rmem_alloc);
-+}
-+
-+static inline int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
-+{
-+	int err = 0;
-+	int skb_len;
-+
-+	/* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
-+	   number of warnings when compiling with -W --ANK
-+	 */
-+	if (atomic_read(&sk->rmem_alloc) + skb->truesize >= (unsigned)sk->rcvbuf) {
-+		err = -ENOMEM;
-+		goto out;
-+	}
-+
-+	/* It would be deadlock, if sock_queue_rcv_skb is used
-+	   with socket lock! We assume that users of this
-+	   function are lock free.
-+	*/
-+	err = sk_filter(sk, skb, 1);
-+	if (err)
-+		goto out;
-+
-+	skb->dev = NULL;
-+	skb_set_owner_r(skb, sk);
-+
-+	/* Cache the SKB length before we tack it onto the receive
-+	 * queue.  Once it is added it no longer belongs to us and
-+	 * may be freed by other threads of control pulling packets
-+	 * from the queue.
-+	 */
-+	skb_len = skb->len;
-+
-+	skb_queue_tail(&sk->receive_queue, skb);
-+	if (!sk->dead)
-+		sk->data_ready(sk,skb_len);
-+out:
-+	return err;
-+}
-+
-+static inline int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)
-+{
-+	/* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
-+	   number of warnings when compiling with -W --ANK
-+	 */
-+	if (atomic_read(&sk->rmem_alloc) + skb->truesize >= (unsigned)sk->rcvbuf)
-+		return -ENOMEM;
-+	skb_set_owner_r(skb, sk);
-+	skb_queue_tail(&sk->error_queue,skb);
-+	if (!sk->dead)
-+		sk->data_ready(sk,skb->len);
-+	return 0;
-+}
-+
-+/*
-+ *	Recover an error report and clear atomically
-+ */
-+ 
-+static inline int sock_error(struct sock *sk)
-+{
-+	int err=xchg(&sk->err,0);
-+	return -err;
-+}
-+
-+static inline unsigned long sock_wspace(struct sock *sk)
-+{
-+	int amt = 0;
-+
-+	if (!(sk->shutdown & SEND_SHUTDOWN)) {
-+		amt = sk->sndbuf - atomic_read(&sk->wmem_alloc);
-+		if (amt < 0) 
-+			amt = 0;
-+	}
-+	return amt;
-+}
-+
-+static inline void sk_wake_async(struct sock *sk, int how, int band)
-+{
-+	if (sk->socket && sk->socket->fasync_list)
-+		sock_wake_async(sk->socket, how, band);
-+}
-+
-+#define SOCK_MIN_SNDBUF 2048
-+#define SOCK_MIN_RCVBUF 256
-+
-+/*
-+ *	Default write policy as shown to user space via poll/select/SIGIO
-+ */
-+static inline int sock_writeable(struct sock *sk) 
-+{
-+	return atomic_read(&sk->wmem_alloc) < (sk->sndbuf / 2);
-+}
-+
-+static inline int gfp_any(void)
-+{
-+	return in_softirq() ? GFP_ATOMIC : GFP_KERNEL;
-+}
-+
-+static inline long sock_rcvtimeo(struct sock *sk, int noblock)
-+{
-+	return noblock ? 0 : sk->rcvtimeo;
-+}
-+
-+static inline long sock_sndtimeo(struct sock *sk, int noblock)
-+{
-+	return noblock ? 0 : sk->sndtimeo;
-+}
-+
-+static inline int sock_rcvlowat(struct sock *sk, int waitall, int len)
-+{
-+	return (waitall ? len : min_t(int, sk->rcvlowat, len)) ? : 1;
-+}
-+
-+/* Alas, with timeout socket operations are not restartable.
-+ * Compare this to poll().
-+ */
-+static inline int sock_intr_errno(long timeo)
-+{
-+	return timeo == MAX_SCHEDULE_TIMEOUT ? -ERESTARTSYS : -EINTR;
-+}
-+
-+static __inline__ void
-+sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
-+{
-+	if (sk->rcvtstamp)
-+		put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP, sizeof(skb->stamp), &skb->stamp);
-+	else
-+		sk->stamp = skb->stamp;
-+}
-+
-+/* 
-+ *	Enable debug/info messages 
-+ */
-+
-+#if 0
-+#define NETDEBUG(x)	do { } while (0)
-+#else
-+#define NETDEBUG(x)	do { x; } while (0)
-+#endif
-+
-+/*
-+ * Macros for sleeping on a socket. Use them like this:
-+ *
-+ * SOCK_SLEEP_PRE(sk)
-+ * if (condition)
-+ * 	schedule();
-+ * SOCK_SLEEP_POST(sk)
-+ *
-+ */
-+
-+#define SOCK_SLEEP_PRE(sk) 	{ struct task_struct *tsk = current; \
-+				DECLARE_WAITQUEUE(wait, tsk); \
-+				tsk->state = TASK_INTERRUPTIBLE; \
-+				add_wait_queue((sk)->sleep, &wait); \
-+				release_sock(sk);
-+
-+#define SOCK_SLEEP_POST(sk)	tsk->state = TASK_RUNNING; \
-+				remove_wait_queue((sk)->sleep, &wait); \
-+				lock_sock(sk); \
-+				}
-+
-+extern __u32 sysctl_wmem_max;
-+extern __u32 sysctl_rmem_max;
-+
-+#endif	/* _SOCK_H */
-diff --unified --recursive --new-file linux-2.4.30/net/Config.in linux-2.4.30-1-686-smp-ring3/net/Config.in
---- linux-2.4.30/net/Config.in	2005-01-19 15:10:13.000000000 +0100
-+++ linux-2.4.30-1-686-smp-ring3/net/Config.in	2005-10-22 23:08:28.028051250 +0200
-@@ -15,6 +15,9 @@
-    bool '  Network packet filtering debugging' CONFIG_NETFILTER_DEBUG
- fi
- bool 'Socket Filtering'  CONFIG_FILTER
-+if [ "$CONFIG_EXPERIMENTAL" = "y" -a "$CONFIG_FILTER" = "y" ]; then
-+    source net/ring/Config.in
-+fi
- tristate 'Unix domain sockets' CONFIG_UNIX
- bool 'TCP/IP networking' CONFIG_INET
- if [ "$CONFIG_INET" = "y" ]; then
-diff --unified --recursive --new-file linux-2.4.30/net/Config.in.ORG linux-2.4.30-1-686-smp-ring3/net/Config.in.ORG
---- linux-2.4.30/net/Config.in.ORG	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.30-1-686-smp-ring3/net/Config.in.ORG	2005-10-22 23:08:28.020050750 +0200
-@@ -0,0 +1,107 @@
-+#
-+# Network configuration
-+#
-+mainmenu_option next_comment
-+comment 'Networking options'
-+tristate 'Packet socket' CONFIG_PACKET
-+if [ "$CONFIG_PACKET" != "n" ]; then
-+   bool '  Packet socket: mmapped IO' CONFIG_PACKET_MMAP
-+fi
-+
-+tristate 'Netlink device emulation' CONFIG_NETLINK_DEV
-+
-+bool 'Network packet filtering (replaces ipchains)' CONFIG_NETFILTER
-+if [ "$CONFIG_NETFILTER" = "y" ]; then
-+   bool '  Network packet filtering debugging' CONFIG_NETFILTER_DEBUG
-+fi
-+bool 'Socket Filtering'  CONFIG_FILTER
-+tristate 'Unix domain sockets' CONFIG_UNIX
-+bool 'TCP/IP networking' CONFIG_INET
-+if [ "$CONFIG_INET" = "y" ]; then
-+   source net/ipv4/Config.in
-+   if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
-+#   IPv6 as module will cause a CRASH if you try to unload it
-+      tristate '  The IPv6 protocol (EXPERIMENTAL)' CONFIG_IPV6
-+      if [ "$CONFIG_IPV6" != "n" ]; then
-+	 source net/ipv6/Config.in
-+      fi
-+   fi
-+   if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
-+      source net/khttpd/Config.in
-+   fi
-+   if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
-+      source net/sctp/Config.in
-+   fi
-+fi
-+if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
-+   tristate 'Asynchronous Transfer Mode (ATM) (EXPERIMENTAL)' CONFIG_ATM
-+   if [ "$CONFIG_ATM" = "y" -o "$CONFIG_ATM" = "m" ]; then
-+      if [ "$CONFIG_INET" = "y" ]; then
-+	 dep_tristate '  Classical IP over ATM' CONFIG_ATM_CLIP $CONFIG_ATM
-+	 if [ "$CONFIG_ATM_CLIP" != "n" ]; then
-+	    bool '    Do NOT send ICMP if no neighbour' CONFIG_ATM_CLIP_NO_ICMP
-+	 fi
-+      fi
-+      dep_tristate '  LAN Emulation (LANE) support' CONFIG_ATM_LANE $CONFIG_ATM
-+      if [ "$CONFIG_INET" = "y" -a "$CONFIG_ATM_LANE" != "n" ]; then
-+	 tristate '    Multi-Protocol Over ATM (MPOA) support' CONFIG_ATM_MPOA
-+      fi
-+      dep_tristate '  RFC1483/2684 Bridged protocols' CONFIG_ATM_BR2684 $CONFIG_ATM
-+      if [ "$CONFIG_ATM_BR2684" != "n" ]; then
-+            bool '    Per-VC IP filter kludge' CONFIG_ATM_BR2684_IPFILTER
-+      fi
-+   fi
-+fi
-+tristate '802.1Q VLAN Support' CONFIG_VLAN_8021Q
-+
-+comment ' '
-+tristate 'The IPX protocol' CONFIG_IPX
-+if [ "$CONFIG_IPX" != "n" ]; then
-+   source net/ipx/Config.in
-+fi
-+
-+tristate 'Appletalk protocol support' CONFIG_ATALK
-+if [ "$CONFIG_ATALK" != "n" ]; then
-+   source drivers/net/appletalk/Config.in
-+fi
-+
-+tristate 'DECnet Support' CONFIG_DECNET
-+if [ "$CONFIG_DECNET" != "n" ]; then
-+   source net/decnet/Config.in
-+fi
-+dep_tristate '802.1d Ethernet Bridging' CONFIG_BRIDGE $CONFIG_INET
-+if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
-+   tristate 'CCITT X.25 Packet Layer (EXPERIMENTAL)' CONFIG_X25
-+   tristate 'LAPB Data Link Driver (EXPERIMENTAL)' CONFIG_LAPB
-+   bool '802.2 LLC (EXPERIMENTAL)' CONFIG_LLC
-+   bool 'Frame Diverter (EXPERIMENTAL)' CONFIG_NET_DIVERT
-+#   if [ "$CONFIG_LLC" = "y" ]; then
-+#      bool '  Netbeui (EXPERIMENTAL)' CONFIG_NETBEUI
-+#   fi
-+   if [ "$CONFIG_INET" = "y" ]; then
-+      tristate 'Acorn Econet/AUN protocols (EXPERIMENTAL)' CONFIG_ECONET
-+      if [ "$CONFIG_ECONET" != "n" ]; then
-+	 bool '  AUN over UDP' CONFIG_ECONET_AUNUDP
-+	 bool '  Native Econet' CONFIG_ECONET_NATIVE
-+      fi
-+   fi
-+   tristate 'WAN router' CONFIG_WAN_ROUTER
-+   bool 'Fast switching (read help!)' CONFIG_NET_FASTROUTE
-+   bool 'Forwarding between high speed interfaces' CONFIG_NET_HW_FLOWCONTROL
-+fi
-+
-+mainmenu_option next_comment
-+comment 'QoS and/or fair queueing'
-+bool 'QoS and/or fair queueing' CONFIG_NET_SCHED
-+if [ "$CONFIG_NET_SCHED" = "y" ]; then
-+   source net/sched/Config.in
-+fi
-+#bool 'Network code profiler' CONFIG_NET_PROFILE
-+endmenu
-+
-+mainmenu_option next_comment
-+comment 'Network testing'
-+dep_tristate 'Packet Generator (USE WITH CAUTION)' CONFIG_NET_PKTGEN $CONFIG_PROC_FS
-+endmenu
-+
-+endmenu
-diff --unified --recursive --new-file linux-2.4.30/net/Makefile linux-2.4.30-1-686-smp-ring3/net/Makefile
---- linux-2.4.30/net/Makefile	2004-08-08 01:26:06.000000000 +0200
-+++ linux-2.4.30-1-686-smp-ring3/net/Makefile	2005-10-22 23:08:27.928045000 +0200
-@@ -7,7 +7,7 @@
- 
- O_TARGET :=	network.o
- 
--mod-subdirs :=	ipv4/netfilter ipv6/netfilter ipx irda bluetooth atm netlink sched core sctp 802
-+mod-subdirs :=	ipv4/netfilter ipv6/netfilter ipx irda bluetooth atm netlink sched core sctp 802 ring
- export-objs :=	netsyms.o
- 
- subdir-y :=	core ethernet
-@@ -46,6 +46,7 @@
- subdir-$(CONFIG_DECNET)		+= decnet
- subdir-$(CONFIG_ECONET)		+= econet
- subdir-$(CONFIG_VLAN_8021Q)           += 8021q
-+subdir-$(CONFIG_RING)		+= ring
- 
- ifeq ($(CONFIG_NETFILTER),y)
-   mod-subdirs += ipv4/ipvs
-diff --unified --recursive --new-file linux-2.4.30/net/Makefile.ORG linux-2.4.30-1-686-smp-ring3/net/Makefile.ORG
---- linux-2.4.30/net/Makefile.ORG	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.30-1-686-smp-ring3/net/Makefile.ORG	2005-10-22 23:08:27.916044250 +0200
-@@ -0,0 +1,61 @@
-+#
-+# Makefile for the linux networking.
-+#
-+# 2 Sep 2000, Christoph Hellwig <hch@infradead.org>
-+# Rewritten to use lists instead of if-statements.
-+#
-+
-+O_TARGET :=	network.o
-+
-+mod-subdirs :=	ipv4/netfilter ipv6/netfilter ipx irda bluetooth atm netlink sched core sctp 802
-+export-objs :=	netsyms.o
-+
-+subdir-y :=	core ethernet
-+subdir-m :=	ipv4 # hum?
-+
-+
-+subdir-$(CONFIG_NET)		+= 802 sched netlink
-+subdir-$(CONFIG_IPV6)		+= ipv6
-+subdir-$(CONFIG_INET)		+= ipv4
-+subdir-$(CONFIG_NETFILTER)	+= ipv4/netfilter
-+subdir-$(CONFIG_UNIX)		+= unix
-+subdir-$(CONFIG_IP_SCTP)	+= sctp
-+
-+ifneq ($(CONFIG_IPV6),n)
-+ifneq ($(CONFIG_IPV6),)
-+subdir-$(CONFIG_NETFILTER)	+= ipv6/netfilter
-+endif
-+endif
-+
-+subdir-$(CONFIG_KHTTPD)		+= khttpd
-+subdir-$(CONFIG_PACKET)		+= packet
-+subdir-$(CONFIG_NET_SCHED)	+= sched
-+subdir-$(CONFIG_BRIDGE)		+= bridge
-+subdir-$(CONFIG_IPX)		+= ipx
-+subdir-$(CONFIG_ATALK)		+= appletalk
-+subdir-$(CONFIG_WAN_ROUTER)	+= wanrouter
-+subdir-$(CONFIG_X25)		+= x25
-+subdir-$(CONFIG_LAPB)		+= lapb
-+subdir-$(CONFIG_NETROM)		+= netrom
-+subdir-$(CONFIG_ROSE)		+= rose
-+subdir-$(CONFIG_AX25)		+= ax25
-+subdir-$(CONFIG_IRDA)		+= irda
-+subdir-$(CONFIG_BLUEZ)		+= bluetooth
-+subdir-$(CONFIG_SUNRPC)		+= sunrpc
-+subdir-$(CONFIG_ATM)		+= atm
-+subdir-$(CONFIG_DECNET)		+= decnet
-+subdir-$(CONFIG_ECONET)		+= econet
-+subdir-$(CONFIG_VLAN_8021Q)           += 8021q
-+
-+ifeq ($(CONFIG_NETFILTER),y)
-+  mod-subdirs += ipv4/ipvs
-+  subdir-$(CONFIG_IP_VS) += ipv4/ipvs
-+endif
-+
-+obj-y	:= socket.o $(join $(subdir-y), $(patsubst %,/%.o,$(notdir $(subdir-y))))
-+ifeq ($(CONFIG_NET),y)
-+obj-$(CONFIG_MODULES)		+= netsyms.o
-+obj-$(CONFIG_SYSCTL)		+= sysctl_net.o
-+endif
-+
-+include $(TOPDIR)/Rules.make
-diff --unified --recursive --new-file linux-2.4.30/net/core/dev.c linux-2.4.30-1-686-smp-ring3/net/core/dev.c
---- linux-2.4.30/net/core/dev.c	2005-04-04 03:42:20.000000000 +0200
-+++ linux-2.4.30-1-686-smp-ring3/net/core/dev.c	2005-10-22 23:08:27.900043250 +0200
-@@ -104,6 +104,56 @@
- #include <linux/wireless.h>		/* Note : will define WIRELESS_EXT */
- #include <net/iw_handler.h>
- #endif	/* CONFIG_NET_RADIO || CONFIG_NET_PCMCIA_RADIO */
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+
-+/* #define RING_DEBUG */
-+
-+#include <linux/ring.h>
-+#include <linux/version.h>
-+
-+static handle_ring_skb ring_handler = NULL;
-+
-+handle_ring_skb get_skb_ring_handler() { return(ring_handler); }
-+
-+void set_skb_ring_handler(handle_ring_skb the_handler) {
-+  ring_handler = the_handler;
-+}
-+
-+void do_skb_ring_handler(struct sk_buff *skb,
-+			 u_char recv_packet, u_char real_skb) {
-+  if(ring_handler)
-+    ring_handler(skb, recv_packet, real_skb);
-+}
-+
-+/* ******************* */
-+
-+static handle_ring_buffer buffer_ring_handler = NULL;
-+
-+handle_ring_buffer get_buffer_ring_handler() { return(buffer_ring_handler); }
-+
-+void set_buffer_ring_handler(handle_ring_buffer the_handler) {
-+  buffer_ring_handler = the_handler;
-+}
-+
-+int do_buffer_ring_handler(struct net_device *dev, char *data, int len) {
-+  if(buffer_ring_handler) {
-+    buffer_ring_handler(dev, data, len);
-+    return(1);
-+  } else 
-+    return(0);
-+}
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+EXPORT_SYMBOL(get_skb_ring_handler);
-+EXPORT_SYMBOL(set_skb_ring_handler);
-+EXPORT_SYMBOL(do_skb_ring_handler);
-+
-+EXPORT_SYMBOL(get_buffer_ring_handler);
-+EXPORT_SYMBOL(set_buffer_ring_handler);
-+EXPORT_SYMBOL(do_buffer_ring_handler);
-+#endif
-+
-+#endif
- #ifdef CONFIG_PLIP
- extern int plip_init(void);
- #endif
-@@ -1066,6 +1116,10 @@
- 			return -ENOMEM;
- 	}
- 
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+	if(ring_handler) ring_handler(skb, 0, 1);
-+#endif /* CONFIG_RING */
-+
- 	/* Grab device queue */
- 	spin_lock_bh(&dev->queue_lock);
- 	q = dev->qdisc;
-@@ -1278,6 +1332,13 @@
- 	struct softnet_data *queue;
- 	unsigned long flags;
- 
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+	if(ring_handler && ring_handler(skb, 1, 1)) {
-+	  /* The packet has been copied into a ring */
-+	  return(NET_RX_SUCCESS);
-+	}
-+#endif /* CONFIG_RING */
-+
- 	if (skb->stamp.tv_sec == 0)
- 		do_gettimeofday(&skb->stamp);
- 
-@@ -1464,6 +1525,13 @@
- 	int ret = NET_RX_DROP;
- 	unsigned short type;
- 
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+	if(ring_handler && ring_handler(skb, 1, 1)) {
-+	  /* The packet has been copied into a ring */
-+	  return(NET_RX_SUCCESS);
-+	}
-+#endif /* CONFIG_RING */
-+
- 	if (skb->stamp.tv_sec == 0)
- 		do_gettimeofday(&skb->stamp);
- 
-diff --unified --recursive --new-file linux-2.4.30/net/core/dev.c.ORG linux-2.4.30-1-686-smp-ring3/net/core/dev.c.ORG
---- linux-2.4.30/net/core/dev.c.ORG	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.30-1-686-smp-ring3/net/core/dev.c.ORG	2005-10-22 23:08:27.472016500 +0200
-@@ -0,0 +1,2926 @@
-+/*
-+ * 	NET3	Protocol independent device support routines.
-+ *
-+ *		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 Free Software Foundation; either version
-+ *		2 of the License, or (at your option) any later version.
-+ *
-+ *	Derived from the non IP parts of dev.c 1.0.19
-+ * 		Authors:	Ross Biro, <bir7@leland.Stanford.Edu>
-+ *				Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
-+ *				Mark Evans, <evansmp@uhura.aston.ac.uk>
-+ *
-+ *	Additional Authors:
-+ *		Florian la Roche <rzsfl@rz.uni-sb.de>
-+ *		Alan Cox <gw4pts@gw4pts.ampr.org>
-+ *		David Hinds <dahinds@users.sourceforge.net>
-+ *		Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
-+ *		Adam Sulmicki <adam@cfar.umd.edu>
-+ *              Pekka Riikonen <priikone@poesidon.pspt.fi>
-+ *
-+ *	Changes:
-+ *              D.J. Barrow     :       Fixed bug where dev->refcnt gets set to 2
-+ *                                      if register_netdev gets called before
-+ *                                      net_dev_init & also removed a few lines
-+ *                                      of code in the process.
-+ *		Alan Cox	:	device private ioctl copies fields back.
-+ *		Alan Cox	:	Transmit queue code does relevant stunts to
-+ *					keep the queue safe.
-+ *		Alan Cox	:	Fixed double lock.
-+ *		Alan Cox	:	Fixed promisc NULL pointer trap
-+ *		????????	:	Support the full private ioctl range
-+ *		Alan Cox	:	Moved ioctl permission check into drivers
-+ *		Tim Kordas	:	SIOCADDMULTI/SIOCDELMULTI
-+ *		Alan Cox	:	100 backlog just doesn't cut it when
-+ *					you start doing multicast video 8)
-+ *		Alan Cox	:	Rewrote net_bh and list manager.
-+ *		Alan Cox	: 	Fix ETH_P_ALL echoback lengths.
-+ *		Alan Cox	:	Took out transmit every packet pass
-+ *					Saved a few bytes in the ioctl handler
-+ *		Alan Cox	:	Network driver sets packet type before calling netif_rx. Saves
-+ *					a function call a packet.
-+ *		Alan Cox	:	Hashed net_bh()
-+ *		Richard Kooijman:	Timestamp fixes.
-+ *		Alan Cox	:	Wrong field in SIOCGIFDSTADDR
-+ *		Alan Cox	:	Device lock protection.
-+ *		Alan Cox	: 	Fixed nasty side effect of device close changes.
-+ *		Rudi Cilibrasi	:	Pass the right thing to set_mac_address()
-+ *		Dave Miller	:	32bit quantity for the device lock to make it work out
-+ *					on a Sparc.
-+ *		Bjorn Ekwall	:	Added KERNELD hack.
-+ *		Alan Cox	:	Cleaned up the backlog initialise.
-+ *		Craig Metz	:	SIOCGIFCONF fix if space for under
-+ *					1 device.
-+ *	    Thomas Bogendoerfer :	Return ENODEV for dev_open, if there
-+ *					is no device open function.
-+ *		Andi Kleen	:	Fix error reporting for SIOCGIFCONF
-+ *	    Michael Chastain	:	Fix signed/unsigned for SIOCGIFCONF
-+ *		Cyrus Durgin	:	Cleaned for KMOD
-+ *		Adam Sulmicki   :	Bug Fix : Network Device Unload
-+ *					A network device unload needs to purge
-+ *					the backlog queue.
-+ *	Paul Rusty Russell	:	SIOCSIFNAME
-+ *              Pekka Riikonen  :	Netdev boot-time settings code
-+ *              Andrew Morton   :       Make unregister_netdevice wait indefinitely on dev->refcnt
-+ * 		J Hadi Salim	:	- Backlog queue sampling
-+ *				        - netif_rx() feedback	
-+ */
-+
-+#include <asm/uaccess.h>
-+#include <asm/system.h>
-+#include <asm/bitops.h>
-+#include <linux/config.h>
-+#include <linux/types.h>
-+#include <linux/kernel.h>
-+#include <linux/sched.h>
-+#include <linux/string.h>
-+#include <linux/mm.h>
-+#include <linux/socket.h>
-+#include <linux/sockios.h>
-+#include <linux/errno.h>
-+#include <linux/interrupt.h>
-+#include <linux/if_ether.h>
-+#include <linux/netdevice.h>
-+#include <linux/etherdevice.h>
-+#include <linux/notifier.h>
-+#include <linux/skbuff.h>
-+#include <linux/brlock.h>
-+#include <net/sock.h>
-+#include <linux/rtnetlink.h>
-+#include <linux/proc_fs.h>
-+#include <linux/stat.h>
-+#include <linux/if_bridge.h>
-+#include <linux/divert.h>
-+#include <net/dst.h>
-+#include <net/pkt_sched.h>
-+#include <net/profile.h>
-+#include <net/checksum.h>
-+#include <linux/highmem.h>
-+#include <linux/init.h>
-+#include <linux/kmod.h>
-+#include <linux/module.h>
-+#if defined(CONFIG_NET_RADIO) || defined(CONFIG_NET_PCMCIA_RADIO)
-+#include <linux/wireless.h>		/* Note : will define WIRELESS_EXT */
-+#include <net/iw_handler.h>
-+#endif	/* CONFIG_NET_RADIO || CONFIG_NET_PCMCIA_RADIO */
-+#ifdef CONFIG_PLIP
-+extern int plip_init(void);
-+#endif
-+
-+
-+/* This define, if set, will randomly drop a packet when congestion
-+ * is more than moderate.  It helps fairness in the multi-interface
-+ * case when one of them is a hog, but it kills performance for the
-+ * single interface case so it is off now by default.
-+ */
-+#undef RAND_LIE
-+
-+/* Setting this will sample the queue lengths and thus congestion
-+ * via a timer instead of as each packet is received.
-+ */
-+#undef OFFLINE_SAMPLE
-+
-+NET_PROFILE_DEFINE(dev_queue_xmit)
-+NET_PROFILE_DEFINE(softnet_process)
-+
-+const char *if_port_text[] = {
-+  "unknown",
-+  "BNC",
-+  "10baseT",
-+  "AUI",
-+  "100baseT",
-+  "100baseTX",
-+  "100baseFX"
-+};
-+
-+/*
-+ *	The list of packet types we will receive (as opposed to discard)
-+ *	and the routines to invoke.
-+ *
-+ *	Why 16. Because with 16 the only overlap we get on a hash of the
-+ *	low nibble of the protocol value is RARP/SNAP/X.25.
-+ *
-+ *      NOTE:  That is no longer true with the addition of VLAN tags.  Not
-+ *             sure which should go first, but I bet it won't make much
-+ *             difference if we are running VLANs.  The good news is that
-+ *             this protocol won't be in the list unless compiled in, so
-+ *             the average user (w/out VLANs) will not be adversly affected.
-+ *             --BLG
-+ *
-+ *		0800	IP
-+ *		8100    802.1Q VLAN
-+ *		0001	802.3
-+ *		0002	AX.25
-+ *		0004	802.2
-+ *		8035	RARP
-+ *		0005	SNAP
-+ *		0805	X.25
-+ *		0806	ARP
-+ *		8137	IPX
-+ *		0009	Localtalk
-+ *		86DD	IPv6
-+ */
-+
-+static struct packet_type *ptype_base[16];		/* 16 way hashed list */
-+static struct packet_type *ptype_all = NULL;		/* Taps */
-+
-+#ifdef OFFLINE_SAMPLE
-+static void sample_queue(unsigned long dummy);
-+static struct timer_list samp_timer = { function: sample_queue };
-+#endif
-+
-+#ifdef CONFIG_HOTPLUG
-+static int net_run_sbin_hotplug(struct net_device *dev, char *action);
-+#else
-+#define net_run_sbin_hotplug(dev, action) ({ 0; })
-+#endif
-+
-+/*
-+ *	Our notifier list
-+ */
-+ 
-+static struct notifier_block *netdev_chain=NULL;
-+
-+/*
-+ *	Device drivers call our routines to queue packets here. We empty the
-+ *	queue in the local softnet handler.
-+ */
-+struct softnet_data softnet_data[NR_CPUS] __cacheline_aligned;
-+
-+#ifdef CONFIG_NET_FASTROUTE
-+int netdev_fastroute;
-+int netdev_fastroute_obstacles;
-+#endif
-+
-+
-+/******************************************************************************************
-+
-+		Protocol management and registration routines
-+
-+*******************************************************************************************/
-+
-+/*
-+ *	For efficiency
-+ */
-+
-+int netdev_nit=0;
-+
-+/*
-+ *	Add a protocol ID to the list. Now that the input handler is
-+ *	smarter we can dispense with all the messy stuff that used to be
-+ *	here.
-+ *
-+ *	BEWARE!!! Protocol handlers, mangling input packets,
-+ *	MUST BE last in hash buckets and checking protocol handlers
-+ *	MUST start from promiscous ptype_all chain in net_bh.
-+ *	It is true now, do not change it.
-+ *	Explantion follows: if protocol handler, mangling packet, will
-+ *	be the first on list, it is not able to sense, that packet
-+ *	is cloned and should be copied-on-write, so that it will
-+ *	change it and subsequent readers will get broken packet.
-+ *							--ANK (980803)
-+ */
-+
-+/**
-+ *	dev_add_pack - add packet handler
-+ *	@pt: packet type declaration
-+ * 
-+ *	Add a protocol handler to the networking stack. The passed &packet_type
-+ *	is linked into kernel lists and may not be freed until it has been
-+ *	removed from the kernel lists.
-+ */
-+ 
-+void dev_add_pack(struct packet_type *pt)
-+{
-+	int hash;
-+
-+	br_write_lock_bh(BR_NETPROTO_LOCK);
-+
-+#ifdef CONFIG_NET_FASTROUTE
-+	/* Hack to detect packet socket */
-+	if ((pt->data) && ((int)(pt->data)!=1)) {
-+		netdev_fastroute_obstacles++;
-+		dev_clear_fastroute(pt->dev);
-+	}
-+#endif
-+	if (pt->type == htons(ETH_P_ALL)) {
-+		netdev_nit++;
-+		pt->next=ptype_all;
-+		ptype_all=pt;
-+	} else {
-+		hash=ntohs(pt->type)&15;
-+		pt->next = ptype_base[hash];
-+		ptype_base[hash] = pt;
-+	}
-+	br_write_unlock_bh(BR_NETPROTO_LOCK);
-+}
-+
-+
-+/**
-+ *	dev_remove_pack	 - remove packet handler
-+ *	@pt: packet type declaration
-+ * 
-+ *	Remove a protocol handler that was previously added to the kernel
-+ *	protocol handlers by dev_add_pack(). The passed &packet_type is removed
-+ *	from the kernel lists and can be freed or reused once this function
-+ *	returns.
-+ */
-+ 
-+void dev_remove_pack(struct packet_type *pt)
-+{
-+	struct packet_type **pt1;
-+
-+	br_write_lock_bh(BR_NETPROTO_LOCK);
-+
-+	if (pt->type == htons(ETH_P_ALL)) {
-+		netdev_nit--;
-+		pt1=&ptype_all;
-+	} else {
-+		pt1=&ptype_base[ntohs(pt->type)&15];
-+	}
-+
-+	for (; (*pt1) != NULL; pt1 = &((*pt1)->next)) {
-+		if (pt == (*pt1)) {
-+			*pt1 = pt->next;
-+#ifdef CONFIG_NET_FASTROUTE
-+			if (pt->data)
-+				netdev_fastroute_obstacles--;
-+#endif
-+			br_write_unlock_bh(BR_NETPROTO_LOCK);
-+			return;
-+		}
-+	}
-+	br_write_unlock_bh(BR_NETPROTO_LOCK);
-+	printk(KERN_WARNING "dev_remove_pack: %p not found.\n", pt);
-+}
-+
-+/******************************************************************************
-+
-+		      Device Boot-time Settings Routines
-+
-+*******************************************************************************/
-+
-+/* Boot time configuration table */
-+static struct netdev_boot_setup dev_boot_setup[NETDEV_BOOT_SETUP_MAX];
-+
-+/**
-+ *	netdev_boot_setup_add	- add new setup entry
-+ *	@name: name of the device
-+ *	@map: configured settings for the device
-+ *
-+ *	Adds new setup entry to the dev_boot_setup list.  The function
-+ *	returns 0 on error and 1 on success.  This is a generic routine to
-+ *	all netdevices.
-+ */
-+int netdev_boot_setup_add(char *name, struct ifmap *map)
-+{
-+	struct netdev_boot_setup *s;
-+	int i;
-+
-+	s = dev_boot_setup;
-+	for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
-+		if (s[i].name[0] == '\0' || s[i].name[0] == ' ') {
-+			memset(s[i].name, 0, sizeof(s[i].name));
-+			strcpy(s[i].name, name);
-+			memcpy(&s[i].map, map, sizeof(s[i].map));
-+			break;
-+		}
-+	}
-+
-+	if (i >= NETDEV_BOOT_SETUP_MAX)
-+		return 0;
-+
-+	return 1;
-+}
-+
-+/**
-+ *	netdev_boot_setup_check	- check boot time settings
-+ *	@dev: the netdevice
-+ *
-+ * 	Check boot time settings for the device.
-+ *	The found settings are set for the device to be used
-+ *	later in the device probing.
-+ *	Returns 0 if no settings found, 1 if they are.
-+ */
-+int netdev_boot_setup_check(struct net_device *dev)
-+{
-+	struct netdev_boot_setup *s;
-+	int i;
-+
-+	s = dev_boot_setup;
-+	for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
-+		if (s[i].name[0] != '\0' && s[i].name[0] != ' ' &&
-+		    !strncmp(dev->name, s[i].name, strlen(s[i].name))) {
-+			dev->irq 	= s[i].map.irq;
-+			dev->base_addr 	= s[i].map.base_addr;
-+			dev->mem_start 	= s[i].map.mem_start;
-+			dev->mem_end 	= s[i].map.mem_end;
-+			return 1;
-+		}
-+	}
-+	return 0;
-+}
-+
-+/*
-+ * Saves at boot time configured settings for any netdevice.
-+ */
-+int __init netdev_boot_setup(char *str)
-+{
-+	int ints[5];
-+	struct ifmap map;
-+
-+	str = get_options(str, ARRAY_SIZE(ints), ints);
-+	if (!str || !*str)
-+		return 0;
-+
-+	/* Save settings */
-+	memset(&map, 0, sizeof(map));
-+	if (ints[0] > 0)
-+		map.irq = ints[1];
-+	if (ints[0] > 1)
-+		map.base_addr = ints[2];
-+	if (ints[0] > 2)
-+		map.mem_start = ints[3];
-+	if (ints[0] > 3)
-+		map.mem_end = ints[4];
-+
-+	/* Add new entry to the list */	
-+	return netdev_boot_setup_add(str, &map);
-+}
-+
-+__setup("netdev=", netdev_boot_setup);
-+
-+/*****************************************************************************************
-+
-+			    Device Interface Subroutines
-+
-+******************************************************************************************/
-+
-+/**
-+ *	__dev_get_by_name	- find a device by its name 
-+ *	@name: name to find
-+ *
-+ *	Find an interface by name. Must be called under RTNL semaphore
-+ *	or @dev_base_lock. If the name is found a pointer to the device
-+ *	is returned. If the name is not found then %NULL is returned. The
-+ *	reference counters are not incremented so the caller must be
-+ *	careful with locks.
-+ */
-+ 
-+
-+struct net_device *__dev_get_by_name(const char *name)
-+{
-+	struct net_device *dev;
-+
-+	for (dev = dev_base; dev != NULL; dev = dev->next) {
-+		if (strncmp(dev->name, name, IFNAMSIZ) == 0)
-+			return dev;
-+	}
-+	return NULL;
-+}
-+
-+/**
-+ *	dev_get_by_name		- find a device by its name
-+ *	@name: name to find
-+ *
-+ *	Find an interface by name. This can be called from any 
-+ *	context and does its own locking. The returned handle has
-+ *	the usage count incremented and the caller must use dev_put() to
-+ *	release it when it is no longer needed. %NULL is returned if no
-+ *	matching device is found.
-+ */
-+
-+struct net_device *dev_get_by_name(const char *name)
-+{
-+	struct net_device *dev;
-+
-+	read_lock(&dev_base_lock);
-+	dev = __dev_get_by_name(name);
-+	if (dev)
-+		dev_hold(dev);
-+	read_unlock(&dev_base_lock);
-+	return dev;
-+}
-+
-+/* 
-+   Return value is changed to int to prevent illegal usage in future.
-+   It is still legal to use to check for device existence.
-+
-+   User should understand, that the result returned by this function
-+   is meaningless, if it was not issued under rtnl semaphore.
-+ */
-+
-+/**
-+ *	dev_get	-	test if a device exists
-+ *	@name:	name to test for
-+ *
-+ *	Test if a name exists. Returns true if the name is found. In order
-+ *	to be sure the name is not allocated or removed during the test the
-+ *	caller must hold the rtnl semaphore.
-+ *
-+ *	This function primarily exists for back compatibility with older
-+ *	drivers. 
-+ */
-+ 
-+int dev_get(const char *name)
-+{
-+	struct net_device *dev;
-+
-+	read_lock(&dev_base_lock);
-+	dev = __dev_get_by_name(name);
-+	read_unlock(&dev_base_lock);
-+	return dev != NULL;
-+}
-+
-+/**
-+ *	__dev_get_by_index - find a device by its ifindex
-+ *	@ifindex: index of device
-+ *
-+ *	Search for an interface by index. Returns %NULL if the device
-+ *	is not found or a pointer to the device. The device has not
-+ *	had its reference counter increased so the caller must be careful
-+ *	about locking. The caller must hold either the RTNL semaphore
-+ *	or @dev_base_lock.
-+ */
-+
-+struct net_device * __dev_get_by_index(int ifindex)
-+{
-+	struct net_device *dev;
-+
-+	for (dev = dev_base; dev != NULL; dev = dev->next) {
-+		if (dev->ifindex == ifindex)
-+			return dev;
-+	}
-+	return NULL;
-+}
-+
-+
-+/**
-+ *	dev_get_by_index - find a device by its ifindex
-+ *	@ifindex: index of device
-+ *
-+ *	Search for an interface by index. Returns NULL if the device
-+ *	is not found or a pointer to the device. The device returned has 
-+ *	had a reference added and the pointer is safe until the user calls
-+ *	dev_put to indicate they have finished with it.
-+ */
-+
-+struct net_device * dev_get_by_index(int ifindex)
-+{
-+	struct net_device *dev;
-+
-+	read_lock(&dev_base_lock);
-+	dev = __dev_get_by_index(ifindex);
-+	if (dev)
-+		dev_hold(dev);
-+	read_unlock(&dev_base_lock);
-+	return dev;
-+}
-+
-+/**
-+ *	dev_getbyhwaddr - find a device by its hardware address
-+ *	@type: media type of device
-+ *	@ha: hardware address
-+ *
-+ *	Search for an interface by MAC address. Returns NULL if the device
-+ *	is not found or a pointer to the device. The caller must hold the
-+ *	rtnl semaphore. The returned device has not had its ref count increased
-+ *	and the caller must therefore be careful about locking
-+ *
-+ *	BUGS:
-+ *	If the API was consistent this would be __dev_get_by_hwaddr
-+ */
-+
-+struct net_device *dev_getbyhwaddr(unsigned short type, char *ha)
-+{
-+	struct net_device *dev;
-+
-+	ASSERT_RTNL();
-+
-+	for (dev = dev_base; dev != NULL; dev = dev->next) {
-+		if (dev->type == type &&
-+		    memcmp(dev->dev_addr, ha, dev->addr_len) == 0)
-+			return dev;
-+	}
-+	return NULL;
-+}
-+
-+/**
-+ *	dev_get_by_flags - find any device with given flags
-+ *	@if_flags: IFF_* values
-+ *	@mask: bitmask of bits in if_flags to check
-+ *
-+ *	Search for any interface with the given flags. Returns NULL if a device
-+ *	is not found or a pointer to the device. The device returned has 
-+ *	had a reference added and the pointer is safe until the user calls
-+ *	dev_put to indicate they have finished with it.
-+ */
-+
-+struct net_device * dev_get_by_flags(unsigned short if_flags, unsigned short mask)
-+{
-+	struct net_device *dev;
-+
-+	read_lock(&dev_base_lock);
-+	dev = __dev_get_by_flags(if_flags, mask);
-+	if (dev)
-+		dev_hold(dev);
-+	read_unlock(&dev_base_lock);
-+	return dev;
-+}
-+
-+/**
-+ *	__dev_get_by_flags - find any device with given flags
-+ *	@if_flags: IFF_* values
-+ *	@mask: bitmask of bits in if_flags to check
-+ *
-+ *	Search for any interface with the given flags. Returns NULL if a device
-+ *	is not found or a pointer to the device. The caller must hold either
-+ *	the RTNL semaphore or @dev_base_lock.
-+ */
-+
-+struct net_device *__dev_get_by_flags(unsigned short if_flags, unsigned short mask)
-+{
-+	struct net_device *dev;
-+
-+	for (dev = dev_base; dev != NULL; dev = dev->next) {
-+		if (((dev->flags ^ if_flags) & mask) == 0)
-+			return dev;
-+	}
-+	return NULL;
-+}
-+
-+/**
-+ *	dev_alloc_name - allocate a name for a device
-+ *	@dev: device 
-+ *	@name: name format string
-+ *
-+ *	Passed a format string - eg "lt%d" it will try and find a suitable
-+ *	id. Not efficient for many devices, not called a lot. The caller
-+ *	must hold the dev_base or rtnl lock while allocating the name and
-+ *	adding the device in order to avoid duplicates. Returns the number
-+ *	of the unit assigned or a negative errno code.
-+ */
-+
-+int dev_alloc_name(struct net_device *dev, const char *name)
-+{
-+	int i;
-+	char buf[32];
-+	char *p;
-+
-+	/*
-+	 * Verify the string as this thing may have come from
-+	 * the user.  There must be either one "%d" and no other "%"
-+	 * characters, or no "%" characters at all.
-+	 */
-+	p = strchr(name, '%');
-+	if (p && (p[1] != 'd' || strchr(p+2, '%')))
-+		return -EINVAL;
-+
-+	/*
-+	 * If you need over 100 please also fix the algorithm...
-+	 */
-+	for (i = 0; i < 100; i++) {
-+		snprintf(buf,sizeof(buf),name,i);
-+		if (__dev_get_by_name(buf) == NULL) {
-+			strcpy(dev->name, buf);
-+			return i;
-+		}
-+	}
-+	return -ENFILE;	/* Over 100 of the things .. bail out! */
-+}
-+
-+/**
-+ *	dev_alloc - allocate a network device and name
-+ *	@name: name format string
-+ *	@err: error return pointer
-+ *
-+ *	Passed a format string, eg. "lt%d", it will allocate a network device
-+ *	and space for the name. %NULL is returned if no memory is available.
-+ *	If the allocation succeeds then the name is assigned and the 
-+ *	device pointer returned. %NULL is returned if the name allocation
-+ *	failed. The cause of an error is returned as a negative errno code
-+ *	in the variable @err points to.
-+ *
-+ *	The caller must hold the @dev_base or RTNL locks when doing this in
-+ *	order to avoid duplicate name allocations.
-+ */
-+
-+struct net_device *dev_alloc(const char *name, int *err)
-+{
-+	struct net_device *dev=kmalloc(sizeof(struct net_device), GFP_KERNEL);
-+	if (dev == NULL) {
-+		*err = -ENOBUFS;
-+		return NULL;
-+	}
-+	memset(dev, 0, sizeof(struct net_device));
-+	*err = dev_alloc_name(dev, name);
-+	if (*err < 0) {
-+		kfree(dev);
-+		return NULL;
-+	}
-+	return dev;
-+}
-+
-+/**
-+ *	netdev_state_change - device changes state
-+ *	@dev: device to cause notification
-+ *
-+ *	Called to indicate a device has changed state. This function calls
-+ *	the notifier chains for netdev_chain and sends a NEWLINK message
-+ *	to the routing socket.
-+ */
-+ 
-+void netdev_state_change(struct net_device *dev)
-+{
-+	if (dev->flags&IFF_UP) {
-+		notifier_call_chain(&netdev_chain, NETDEV_CHANGE, dev);
-+		rtmsg_ifinfo(RTM_NEWLINK, dev, 0);
-+	}
-+}
-+
-+
-+#ifdef CONFIG_KMOD
-+
-+/**
-+ *	dev_load 	- load a network module
-+ *	@name: name of interface
-+ *
-+ *	If a network interface is not present and the process has suitable
-+ *	privileges this function loads the module. If module loading is not
-+ *	available in this kernel then it becomes a nop.
-+ */
-+
-+void dev_load(const char *name)
-+{
-+	if (!dev_get(name) && capable(CAP_SYS_MODULE))
-+		request_module(name);
-+}
-+
-+#else
-+
-+extern inline void dev_load(const char *unused){;}
-+
-+#endif
-+
-+static int default_rebuild_header(struct sk_buff *skb)
-+{
-+	printk(KERN_DEBUG "%s: default_rebuild_header called -- BUG!\n", skb->dev ? skb->dev->name : "NULL!!!");
-+	kfree_skb(skb);
-+	return 1;
-+}
-+
-+/**
-+ *	dev_open	- prepare an interface for use. 
-+ *	@dev:	device to open
-+ *
-+ *	Takes a device from down to up state. The device's private open
-+ *	function is invoked and then the multicast lists are loaded. Finally
-+ *	the device is moved into the up state and a %NETDEV_UP message is
-+ *	sent to the netdev notifier chain.
-+ *
-+ *	Calling this function on an active interface is a nop. On a failure
-+ *	a negative errno code is returned.
-+ */
-+ 
-+int dev_open(struct net_device *dev)
-+{
-+	int ret = 0;
-+
-+	/*
-+	 *	Is it already up?
-+	 */
-+
-+	if (dev->flags&IFF_UP)
-+		return 0;
-+
-+	/*
-+	 *	Is it even present?
-+	 */
-+	if (!netif_device_present(dev))
-+		return -ENODEV;
-+
-+	/*
-+	 *	Call device private open method
-+	 */
-+	if (try_inc_mod_count(dev->owner)) {
-+		set_bit(__LINK_STATE_START, &dev->state);
-+		if (dev->open) {
-+			ret = dev->open(dev);
-+			if (ret != 0) {
-+				clear_bit(__LINK_STATE_START, &dev->state);
-+				if (dev->owner)
-+					__MOD_DEC_USE_COUNT(dev->owner);
-+			}
-+		}
-+	} else {
-+		ret = -ENODEV;
-+	}
-+
-+	/*
-+	 *	If it went open OK then:
-+	 */
-+	 
-+	if (ret == 0) 
-+	{
-+		/*
-+		 *	Set the flags.
-+		 */
-+		dev->flags |= IFF_UP;
-+
-+		/*
-+		 *	Initialize multicasting status 
-+		 */
-+		dev_mc_upload(dev);
-+
-+		/*
-+		 *	Wakeup transmit queue engine
-+		 */
-+		dev_activate(dev);
-+
-+		/*
-+		 *	... and announce new interface.
-+		 */
-+		notifier_call_chain(&netdev_chain, NETDEV_UP, dev);
-+	}
-+	return(ret);
-+}
-+
-+#ifdef CONFIG_NET_FASTROUTE
-+
-+static void dev_do_clear_fastroute(struct net_device *dev)
-+{
-+	if (dev->accept_fastpath) {
-+		int i;
-+
-+		for (i=0; i<=NETDEV_FASTROUTE_HMASK; i++) {
-+			struct dst_entry *dst;
-+
-+			write_lock_irq(&dev->fastpath_lock);
-+			dst = dev->fastpath[i];
-+			dev->fastpath[i] = NULL;
-+			write_unlock_irq(&dev->fastpath_lock);
-+
-+			dst_release(dst);
-+		}
-+	}
-+}
-+
-+void dev_clear_fastroute(struct net_device *dev)
-+{
-+	if (dev) {
-+		dev_do_clear_fastroute(dev);
-+	} else {
-+		read_lock(&dev_base_lock);
-+		for (dev = dev_base; dev; dev = dev->next)
-+			dev_do_clear_fastroute(dev);
-+		read_unlock(&dev_base_lock);
-+	}
-+}
-+#endif
-+
-+/**
-+ *	dev_close - shutdown an interface.
-+ *	@dev: device to shutdown
-+ *
-+ *	This function moves an active device into down state. A 
-+ *	%NETDEV_GOING_DOWN is sent to the netdev notifier chain. The device
-+ *	is then deactivated and finally a %NETDEV_DOWN is sent to the notifier
-+ *	chain.
-+ */
-+ 
-+int dev_close(struct net_device *dev)
-+{
-+	if (!(dev->flags&IFF_UP))
-+		return 0;
-+
-+	/*
-+	 *	Tell people we are going down, so that they can
-+	 *	prepare to death, when device is still operating.
-+	 */
-+	notifier_call_chain(&netdev_chain, NETDEV_GOING_DOWN, dev);
-+
-+	dev_deactivate(dev);
-+
-+	clear_bit(__LINK_STATE_START, &dev->state);
-+
-+	/* Synchronize to scheduled poll. We cannot touch poll list,
-+	 * it can be even on different cpu. So just clear netif_running(),
-+	 * and wait when poll really will happen. Actually, the best place
-+	 * for this is inside dev->stop() after device stopped its irq
-+	 * engine, but this requires more changes in devices. */
-+
-+	smp_mb__after_clear_bit(); /* Commit netif_running(). */
-+	while (test_bit(__LINK_STATE_RX_SCHED, &dev->state)) {
-+		/* No hurry. */
-+		current->state = TASK_INTERRUPTIBLE;
-+		schedule_timeout(1);
-+	}
-+
-+	/*
-+	 *	Call the device specific close. This cannot fail.
-+	 *	Only if device is UP
-+	 *
-+	 *	We allow it to be called even after a DETACH hot-plug
-+	 *	event.
-+	 */
-+	 
-+	if (dev->stop)
-+		dev->stop(dev);
-+
-+	/*
-+	 *	Device is now down.
-+	 */
-+
-+	dev->flags &= ~IFF_UP;
-+#ifdef CONFIG_NET_FASTROUTE
-+	dev_clear_fastroute(dev);
-+#endif
-+
-+	/*
-+	 *	Tell people we are down
-+	 */
-+	notifier_call_chain(&netdev_chain, NETDEV_DOWN, dev);
-+
-+	/*
-+	 * Drop the module refcount
-+	 */
-+	if (dev->owner)
-+		__MOD_DEC_USE_COUNT(dev->owner);
-+
-+	return(0);
-+}
-+
-+
-+/*
-+ *	Device change register/unregister. These are not inline or static
-+ *	as we export them to the world.
-+ */
-+ 
-+/**
-+ *	register_netdevice_notifier - register a network notifier block
-+ *	@nb: notifier
-+ *
-+ *	Register a notifier to be called when network device events occur.
-+ *	The notifier passed is linked into the kernel structures and must
-+ *	not be reused until it has been unregistered. A negative errno code
-+ *	is returned on a failure.
-+ */
-+
-+int register_netdevice_notifier(struct notifier_block *nb)
-+{
-+	return notifier_chain_register(&netdev_chain, nb);
-+}
-+
-+/**
-+ *	unregister_netdevice_notifier - unregister a network notifier block
-+ *	@nb: notifier
-+ *
-+ *	Unregister a notifier previously registered by
-+ *	register_netdevice_notifier(). The notifier is unlinked into the
-+ *	kernel structures and may then be reused. A negative errno code
-+ *	is returned on a failure.
-+ */
-+
-+int unregister_netdevice_notifier(struct notifier_block *nb)
-+{
-+	return notifier_chain_unregister(&netdev_chain,nb);
-+}
-+
-+/*
-+ *	Support routine. Sends outgoing frames to any network
-+ *	taps currently in use.
-+ */
-+
-+void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
-+{
-+	struct packet_type *ptype;
-+	do_gettimeofday(&skb->stamp);
-+
-+	br_read_lock(BR_NETPROTO_LOCK);
-+	for (ptype = ptype_all; ptype!=NULL; ptype = ptype->next) 
-+	{
-+		/* Never send packets back to the socket
-+		 * they originated from - MvS (miquels@drinkel.ow.org)
-+		 */
-+		if ((ptype->dev == dev || !ptype->dev) &&
-+			((struct sock *)ptype->data != skb->sk))
-+		{
-+			struct sk_buff *skb2;
-+			if ((skb2 = skb_clone(skb, GFP_ATOMIC)) == NULL)
-+				break;
-+
-+			/* skb->nh should be correctly
-+			   set by sender, so that the second statement is
-+			   just protection against buggy protocols.
-+			 */
-+			skb2->mac.raw = skb2->data;
-+
-+			if (skb2->nh.raw < skb2->data || skb2->nh.raw > skb2->tail) {
-+				if (net_ratelimit())
-+					printk(KERN_CRIT "protocol %04x is buggy, dev %s\n", skb2->protocol, dev->name);
-+				skb2->nh.raw = skb2->data;
-+			}
-+
-+			skb2->h.raw = skb2->nh.raw;
-+			skb2->pkt_type = PACKET_OUTGOING;
-+			ptype->func(skb2, skb->dev, ptype);
-+		}
-+	}
-+	br_read_unlock(BR_NETPROTO_LOCK);
-+}
-+
-+/* Calculate csum in the case, when packet is misrouted.
-+ * If it failed by some reason, ignore and send skb with wrong
-+ * checksum.
-+ */
-+struct sk_buff * skb_checksum_help(struct sk_buff *skb)
-+{
-+	int offset;
-+	unsigned int csum;
-+
-+	offset = skb->h.raw - skb->data;
-+	if (offset > (int)skb->len)
-+		BUG();
-+	csum = skb_checksum(skb, offset, skb->len-offset, 0);
-+
-+	offset = skb->tail - skb->h.raw;
-+	if (offset <= 0)
-+		BUG();
-+	if (skb->csum+2 > offset)
-+		BUG();
-+
-+	*(u16*)(skb->h.raw + skb->csum) = csum_fold(csum);
-+	skb->ip_summed = CHECKSUM_NONE;
-+	return skb;
-+}
-+
-+#ifdef CONFIG_HIGHMEM
-+/* Actually, we should eliminate this check as soon as we know, that:
-+ * 1. IOMMU is present and allows to map all the memory.
-+ * 2. No high memory really exists on this machine.
-+ */
-+
-+static inline int
-+illegal_highdma(struct net_device *dev, struct sk_buff *skb)
-+{
-+	int i;
-+
-+	if (dev->features&NETIF_F_HIGHDMA)
-+		return 0;
-+
-+	for (i=0; i<skb_shinfo(skb)->nr_frags; i++)
-+		if (skb_shinfo(skb)->frags[i].page >= highmem_start_page)
-+			return 1;
-+
-+	return 0;
-+}
-+#else
-+#define illegal_highdma(dev, skb)	(0)
-+#endif
-+
-+/**
-+ *	dev_queue_xmit - transmit a buffer
-+ *	@skb: buffer to transmit
-+ *	
-+ *	Queue a buffer for transmission to a network device. The caller must
-+ *	have set the device and priority and built the buffer before calling this 
-+ *	function. The function can be called from an interrupt.
-+ *
-+ *	A negative errno code is returned on a failure. A success does not
-+ *	guarantee the frame will be transmitted as it may be dropped due
-+ *	to congestion or traffic shaping.
-+ */
-+
-+int dev_queue_xmit(struct sk_buff *skb)
-+{
-+	struct net_device *dev = skb->dev;
-+	struct Qdisc  *q;
-+
-+	if (skb_shinfo(skb)->frag_list &&
-+	    !(dev->features&NETIF_F_FRAGLIST) &&
-+	    skb_linearize(skb, GFP_ATOMIC) != 0) {
-+		kfree_skb(skb);
-+		return -ENOMEM;
-+	}
-+
-+	/* Fragmented skb is linearized if device does not support SG,
-+	 * or if at least one of fragments is in highmem and device
-+	 * does not support DMA from it.
-+	 */
-+	if (skb_shinfo(skb)->nr_frags &&
-+	    (!(dev->features&NETIF_F_SG) || illegal_highdma(dev, skb)) &&
-+	    skb_linearize(skb, GFP_ATOMIC) != 0) {
-+		kfree_skb(skb);
-+		return -ENOMEM;
-+	}
-+
-+	/* If packet is not checksummed and device does not support
-+	 * checksumming for this protocol, complete checksumming here.
-+	 */
-+	if (skb->ip_summed == CHECKSUM_HW &&
-+	    (!(dev->features&(NETIF_F_HW_CSUM|NETIF_F_NO_CSUM)) &&
-+	     (!(dev->features&NETIF_F_IP_CSUM) ||
-+	      skb->protocol != htons(ETH_P_IP)))) {
-+		if ((skb = skb_checksum_help(skb)) == NULL)
-+			return -ENOMEM;
-+	}
-+
-+	/* Grab device queue */
-+	spin_lock_bh(&dev->queue_lock);
-+	q = dev->qdisc;
-+	if (q->enqueue) {
-+		int ret = q->enqueue(skb, q);
-+
-+		qdisc_run(dev);
-+
-+		spin_unlock_bh(&dev->queue_lock);
-+		return ret == NET_XMIT_BYPASS ? NET_XMIT_SUCCESS : ret;
-+	}
-+
-+	/* The device has no queue. Common case for software devices:
-+	   loopback, all the sorts of tunnels...
-+
-+	   Really, it is unlikely that xmit_lock protection is necessary here.
-+	   (f.e. loopback and IP tunnels are clean ignoring statistics counters.)
-+	   However, it is possible, that they rely on protection
-+	   made by us here.
-+
-+	   Check this and shot the lock. It is not prone from deadlocks.
-+	   Either shot noqueue qdisc, it is even simpler 8)
-+	 */
-+	if (dev->flags&IFF_UP) {
-+		int cpu = smp_processor_id();
-+
-+		if (dev->xmit_lock_owner != cpu) {
-+			spin_unlock(&dev->queue_lock);
-+			spin_lock(&dev->xmit_lock);
-+			dev->xmit_lock_owner = cpu;
-+
-+			if (!netif_queue_stopped(dev)) {
-+				if (netdev_nit)
-+					dev_queue_xmit_nit(skb,dev);
-+
-+				if (dev->hard_start_xmit(skb, dev) == 0) {
-+					dev->xmit_lock_owner = -1;
-+					spin_unlock_bh(&dev->xmit_lock);
-+					return 0;
-+				}
-+			}
-+			dev->xmit_lock_owner = -1;
-+			spin_unlock_bh(&dev->xmit_lock);
-+			if (net_ratelimit())
-+				printk(KERN_CRIT "Virtual device %s asks to queue packet!\n", dev->name);
-+			kfree_skb(skb);
-+			return -ENETDOWN;
-+		} else {
-+			/* Recursion is detected! It is possible, unfortunately */
-+			if (net_ratelimit())
-+				printk(KERN_CRIT "Dead loop on virtual device %s, fix it urgently!\n", dev->name);
-+		}
-+	}
-+	spin_unlock_bh(&dev->queue_lock);
-+
-+	kfree_skb(skb);
-+	return -ENETDOWN;
-+}
-+
-+
-+/*=======================================================================
-+			Receiver routines
-+  =======================================================================*/
-+
-+int netdev_max_backlog = 300;
-+int weight_p = 64;            /* old backlog weight */
-+/* These numbers are selected based on intuition and some
-+ * experimentatiom, if you have more scientific way of doing this
-+ * please go ahead and fix things.
-+ */
-+int no_cong_thresh = 10;
-+int no_cong = 20;
-+int lo_cong = 100;
-+int mod_cong = 290;
-+
-+struct netif_rx_stats netdev_rx_stat[NR_CPUS];
-+
-+
-+#ifdef CONFIG_NET_HW_FLOWCONTROL
-+atomic_t netdev_dropping = ATOMIC_INIT(0);
-+static unsigned long netdev_fc_mask = 1;
-+unsigned long netdev_fc_xoff = 0;
-+spinlock_t netdev_fc_lock = SPIN_LOCK_UNLOCKED;
-+
-+static struct
-+{
-+	void (*stimul)(struct net_device *);
-+	struct net_device *dev;
-+} netdev_fc_slots[BITS_PER_LONG];
-+
-+int netdev_register_fc(struct net_device *dev, void (*stimul)(struct net_device *dev))
-+{
-+	int bit = 0;
-+	unsigned long flags;
-+
-+	spin_lock_irqsave(&netdev_fc_lock, flags);
-+	if (netdev_fc_mask != ~0UL) {
-+		bit = ffz(netdev_fc_mask);
-+		netdev_fc_slots[bit].stimul = stimul;
-+		netdev_fc_slots[bit].dev = dev;
-+		set_bit(bit, &netdev_fc_mask);
-+		clear_bit(bit, &netdev_fc_xoff);
-+	}
-+	spin_unlock_irqrestore(&netdev_fc_lock, flags);
-+	return bit;
-+}
-+
-+void netdev_unregister_fc(int bit)
-+{
-+	unsigned long flags;
-+
-+	spin_lock_irqsave(&netdev_fc_lock, flags);
-+	if (bit > 0) {
-+		netdev_fc_slots[bit].stimul = NULL;
-+		netdev_fc_slots[bit].dev = NULL;
-+		clear_bit(bit, &netdev_fc_mask);
-+		clear_bit(bit, &netdev_fc_xoff);
-+	}
-+	spin_unlock_irqrestore(&netdev_fc_lock, flags);
-+}
-+
-+static void netdev_wakeup(void)
-+{
-+	unsigned long xoff;
-+
-+	spin_lock(&netdev_fc_lock);
-+	xoff = netdev_fc_xoff;
-+	netdev_fc_xoff = 0;
-+	while (xoff) {
-+		int i = ffz(~xoff);
-+		xoff &= ~(1<<i);
-+		netdev_fc_slots[i].stimul(netdev_fc_slots[i].dev);
-+	}
-+	spin_unlock(&netdev_fc_lock);
-+}
-+#endif
-+
-+static void get_sample_stats(int cpu)
-+{
-+#ifdef RAND_LIE
-+	unsigned long rd;
-+	int rq;
-+#endif
-+	int blog = softnet_data[cpu].input_pkt_queue.qlen;
-+	int avg_blog = softnet_data[cpu].avg_blog;
-+
-+	avg_blog = (avg_blog >> 1)+ (blog >> 1);
-+
-+	if (avg_blog > mod_cong) {
-+		/* Above moderate congestion levels. */
-+		softnet_data[cpu].cng_level = NET_RX_CN_HIGH;
-+#ifdef RAND_LIE
-+		rd = net_random();
-+		rq = rd % netdev_max_backlog;
-+		if (rq < avg_blog) /* unlucky bastard */
-+			softnet_data[cpu].cng_level = NET_RX_DROP;
-+#endif
-+	} else if (avg_blog > lo_cong) {
-+		softnet_data[cpu].cng_level = NET_RX_CN_MOD;
-+#ifdef RAND_LIE
-+		rd = net_random();
-+		rq = rd % netdev_max_backlog;
-+			if (rq < avg_blog) /* unlucky bastard */
-+				softnet_data[cpu].cng_level = NET_RX_CN_HIGH;
-+#endif
-+	} else if (avg_blog > no_cong) 
-+		softnet_data[cpu].cng_level = NET_RX_CN_LOW;
-+	else  /* no congestion */
-+		softnet_data[cpu].cng_level = NET_RX_SUCCESS;
-+
-+	softnet_data[cpu].avg_blog = avg_blog;
-+}
-+
-+#ifdef OFFLINE_SAMPLE
-+static void sample_queue(unsigned long dummy)
-+{
-+/* 10 ms 0r 1ms -- i dont care -- JHS */
-+	int next_tick = 1;
-+	int cpu = smp_processor_id();
-+
-+	get_sample_stats(cpu);
-+	next_tick += jiffies;
-+	mod_timer(&samp_timer, next_tick);
-+}
-+#endif
-+
-+
-+/**
-+ *	netif_rx	-	post buffer to the network code
-+ *	@skb: buffer to post
-+ *
-+ *	This function receives a packet from a device driver and queues it for
-+ *	the upper (protocol) levels to process.  It always succeeds. The buffer
-+ *	may be dropped during processing for congestion control or by the 
-+ *	protocol layers.
-+ *      
-+ *	return values:
-+ *	NET_RX_SUCCESS	(no congestion)           
-+ *	NET_RX_CN_LOW     (low congestion) 
-+ *	NET_RX_CN_MOD     (moderate congestion)
-+ *	NET_RX_CN_HIGH    (high congestion) 
-+ *	NET_RX_DROP    (packet was dropped)
-+ *      
-+ *      
-+ */
-+
-+int netif_rx(struct sk_buff *skb)
-+{
-+	int this_cpu = smp_processor_id();
-+	struct softnet_data *queue;
-+	unsigned long flags;
-+
-+	if (skb->stamp.tv_sec == 0)
-+		do_gettimeofday(&skb->stamp);
-+
-+	/* The code is rearranged so that the path is the most
-+	   short when CPU is congested, but is still operating.
-+	 */
-+	queue = &softnet_data[this_cpu];
-+
-+	local_irq_save(flags);
-+
-+	netdev_rx_stat[this_cpu].total++;
-+	if (queue->input_pkt_queue.qlen <= netdev_max_backlog) {
-+		if (queue->input_pkt_queue.qlen) {
-+			if (queue->throttle)
-+				goto drop;
-+
-+enqueue:
-+			dev_hold(skb->dev);
-+			__skb_queue_tail(&queue->input_pkt_queue,skb);
-+			local_irq_restore(flags);
-+#ifndef OFFLINE_SAMPLE
-+			get_sample_stats(this_cpu);
-+#endif
-+			return queue->cng_level;
-+		}
-+
-+		if (queue->throttle) {
-+			queue->throttle = 0;
-+#ifdef CONFIG_NET_HW_FLOWCONTROL
-+			if (atomic_dec_and_test(&netdev_dropping))
-+				netdev_wakeup();
-+#endif
-+		}
-+
-+		netif_rx_schedule(&queue->blog_dev);
-+		goto enqueue;
-+	}
-+
-+	if (queue->throttle == 0) {
-+		queue->throttle = 1;
-+		netdev_rx_stat[this_cpu].throttled++;
-+#ifdef CONFIG_NET_HW_FLOWCONTROL
-+		atomic_inc(&netdev_dropping);
-+#endif
-+	}
-+
-+drop:
-+	netdev_rx_stat[this_cpu].dropped++;
-+	local_irq_restore(flags);
-+
-+	kfree_skb(skb);
-+	return NET_RX_DROP;
-+}
-+
-+/* Deliver skb to an old protocol, which is not threaded well
-+   or which do not understand shared skbs.
-+ */
-+static int deliver_to_old_ones(struct packet_type *pt, struct sk_buff *skb, int last)
-+{
-+	static spinlock_t net_bh_lock = SPIN_LOCK_UNLOCKED;
-+	int ret = NET_RX_DROP;
-+
-+
-+	if (!last) {
-+		skb = skb_clone(skb, GFP_ATOMIC);
-+		if (skb == NULL)
-+			return ret;
-+	}
-+	if (skb_is_nonlinear(skb) && skb_linearize(skb, GFP_ATOMIC) != 0) {
-+		kfree_skb(skb);
-+		return ret;
-+	}
-+
-+	/* The assumption (correct one) is that old protocols
-+	   did not depened on BHs different of NET_BH and TIMER_BH.
-+	 */
-+
-+	/* Emulate NET_BH with special spinlock */
-+	spin_lock(&net_bh_lock);
-+
-+	/* Disable timers and wait for all timers completion */
-+	tasklet_disable(bh_task_vec+TIMER_BH);
-+
-+	ret = pt->func(skb, skb->dev, pt);
-+
-+	tasklet_hi_enable(bh_task_vec+TIMER_BH);
-+	spin_unlock(&net_bh_lock);
-+	return ret;
-+}
-+
-+static __inline__ void skb_bond(struct sk_buff *skb)
-+{
-+	struct net_device *dev = skb->dev;
-+
-+	if (dev->master) {
-+		skb->real_dev = skb->dev;
-+		skb->dev = dev->master;
-+	}
-+}
-+
-+static void net_tx_action(struct softirq_action *h)
-+{
-+	int cpu = smp_processor_id();
-+
-+	if (softnet_data[cpu].completion_queue) {
-+		struct sk_buff *clist;
-+
-+		local_irq_disable();
-+		clist = softnet_data[cpu].completion_queue;
-+		softnet_data[cpu].completion_queue = NULL;
-+		local_irq_enable();
-+
-+		while (clist != NULL) {
-+			struct sk_buff *skb = clist;
-+			clist = clist->next;
-+
-+			BUG_TRAP(atomic_read(&skb->users) == 0);
-+			__kfree_skb(skb);
-+		}
-+	}
-+
-+	if (softnet_data[cpu].output_queue) {
-+		struct net_device *head;
-+
-+		local_irq_disable();
-+		head = softnet_data[cpu].output_queue;
-+		softnet_data[cpu].output_queue = NULL;
-+		local_irq_enable();
-+
-+		while (head != NULL) {
-+			struct net_device *dev = head;
-+			head = head->next_sched;
-+
-+			smp_mb__before_clear_bit();
-+			clear_bit(__LINK_STATE_SCHED, &dev->state);
-+
-+			if (spin_trylock(&dev->queue_lock)) {
-+				qdisc_run(dev);
-+				spin_unlock(&dev->queue_lock);
-+			} else {
-+				netif_schedule(dev);
-+			}
-+		}
-+	}
-+}
-+
-+
-+#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
-+void (*br_handle_frame_hook)(struct sk_buff *skb) = NULL;
-+#endif
-+
-+static __inline__ int handle_bridge(struct sk_buff *skb,
-+				     struct packet_type *pt_prev)
-+{
-+	int ret = NET_RX_DROP;
-+
-+	if (pt_prev) {
-+		if (!pt_prev->data)
-+			ret = deliver_to_old_ones(pt_prev, skb, 0);
-+		else {
-+			atomic_inc(&skb->users);
-+			ret = pt_prev->func(skb, skb->dev, pt_prev);
-+		}
-+	}
-+
-+	br_handle_frame_hook(skb);
-+	return ret;
-+}
-+
-+
-+#ifdef CONFIG_NET_DIVERT
-+static inline int handle_diverter(struct sk_buff *skb)
-+{
-+	/* if diversion is supported on device, then divert */
-+	if (skb->dev->divert && skb->dev->divert->divert)
-+		divert_frame(skb);
-+	return 0;
-+}
-+#endif   /* CONFIG_NET_DIVERT */
-+
-+int netif_receive_skb(struct sk_buff *skb)
-+{
-+	struct packet_type *ptype, *pt_prev;
-+	int ret = NET_RX_DROP;
-+	unsigned short type;
-+
-+	if (skb->stamp.tv_sec == 0)
-+		do_gettimeofday(&skb->stamp);
-+
-+	skb_bond(skb);
-+
-+	netdev_rx_stat[smp_processor_id()].total++;
-+
-+#ifdef CONFIG_NET_FASTROUTE
-+	if (skb->pkt_type == PACKET_FASTROUTE) {
-+		netdev_rx_stat[smp_processor_id()].fastroute_deferred_out++;
-+		return dev_queue_xmit(skb);
-+	}
-+#endif
-+
-+	skb->h.raw = skb->nh.raw = skb->data;
-+
-+	pt_prev = NULL;
-+	for (ptype = ptype_all; ptype; ptype = ptype->next) {
-+		if (!ptype->dev || ptype->dev == skb->dev) {
-+			if (pt_prev) {
-+				if (!pt_prev->data) {
-+					ret = deliver_to_old_ones(pt_prev, skb, 0);
-+				} else {
-+					atomic_inc(&skb->users);
-+					ret = pt_prev->func(skb, skb->dev, pt_prev);
-+				}
-+			}
-+			pt_prev = ptype;
-+		}
-+	}
-+
-+#ifdef CONFIG_NET_DIVERT
-+	if (skb->dev->divert && skb->dev->divert->divert)
-+		ret = handle_diverter(skb);
-+#endif /* CONFIG_NET_DIVERT */
-+			
-+#if defined(CONFIG_BRIDGE) || defined(CONFIG_BRIDGE_MODULE)
-+	if (skb->dev->br_port != NULL && br_handle_frame_hook != NULL &&
-+	    skb->pkt_type != PACKET_LOOPBACK) {
-+		return handle_bridge(skb, pt_prev);
-+	}
-+#endif
-+
-+	type = skb->protocol;
-+	for (ptype=ptype_base[ntohs(type)&15];ptype;ptype=ptype->next) {
-+		if (ptype->type == type &&
-+		    (!ptype->dev || ptype->dev == skb->dev)) {
-+			if (pt_prev) {
-+				if (!pt_prev->data) {
-+					ret = deliver_to_old_ones(pt_prev, skb, 0);
-+				} else {
-+					atomic_inc(&skb->users);
-+					ret = pt_prev->func(skb, skb->dev, pt_prev);
-+				}
-+			}
-+			pt_prev = ptype;
-+		}
-+	}
-+
-+	if (pt_prev) {
-+		if (!pt_prev->data) {
-+			ret = deliver_to_old_ones(pt_prev, skb, 1);
-+		} else {
-+			ret = pt_prev->func(skb, skb->dev, pt_prev);
-+		}
-+	} else {
-+		kfree_skb(skb);
-+		/* Jamal, now you will not able to escape explaining
-+		 * me how you were going to use this. :-)
-+		 */
-+		ret = NET_RX_DROP;
-+	}
-+
-+	return ret;
-+}
-+
-+static int process_backlog(struct net_device *backlog_dev, int *budget)
-+{
-+	int work = 0;
-+	int quota = min(backlog_dev->quota, *budget);
-+	int this_cpu = smp_processor_id();
-+	struct softnet_data *queue = &softnet_data[this_cpu];
-+	unsigned long start_time = jiffies;
-+
-+	for (;;) {
-+		struct sk_buff *skb;
-+		struct net_device *dev;
-+
-+		local_irq_disable();
-+		skb = __skb_dequeue(&queue->input_pkt_queue);
-+		if (skb == NULL)
-+			goto job_done;
-+		local_irq_enable();
-+
-+		dev = skb->dev;
-+
-+		netif_receive_skb(skb);
-+
-+		dev_put(dev);
-+
-+		work++;
-+
-+		if (work >= quota || jiffies - start_time > 1)
-+			break;
-+
-+#ifdef CONFIG_NET_HW_FLOWCONTROL
-+		if (queue->throttle && queue->input_pkt_queue.qlen < no_cong_thresh ) {
-+			queue->throttle = 0;
-+			if (atomic_dec_and_test(&netdev_dropping)) {
-+				netdev_wakeup();
-+				break;
-+			}
-+		}
-+#endif
-+	}
-+
-+	backlog_dev->quota -= work;
-+	*budget -= work;
-+	return -1;
-+
-+job_done:
-+	backlog_dev->quota -= work;
-+	*budget -= work;
-+
-+	list_del(&backlog_dev->poll_list);
-+	smp_mb__before_clear_bit();
-+	netif_poll_enable(backlog_dev);
-+
-+	if (queue->throttle) {
-+		queue->throttle = 0;
-+#ifdef CONFIG_NET_HW_FLOWCONTROL
-+		if (atomic_dec_and_test(&netdev_dropping))
-+			netdev_wakeup();
-+#endif
-+	}
-+	local_irq_enable();
-+	return 0;
-+}
-+
-+static void net_rx_action(struct softirq_action *h)
-+{
-+	int this_cpu = smp_processor_id();
-+	struct softnet_data *queue = &softnet_data[this_cpu];
-+	unsigned long start_time = jiffies;
-+	int budget = netdev_max_backlog;
-+
-+	br_read_lock(BR_NETPROTO_LOCK);
-+	local_irq_disable();
-+
-+	while (!list_empty(&queue->poll_list)) {
-+		struct net_device *dev;
-+
-+		if (budget <= 0 || jiffies - start_time > 1)
-+			goto softnet_break;
-+
-+		local_irq_enable();
-+
-+		dev = list_entry(queue->poll_list.next, struct net_device, poll_list);
-+
-+		if (dev->quota <= 0 || dev->poll(dev, &budget)) {
-+			local_irq_disable();
-+			list_del(&dev->poll_list);
-+			list_add_tail(&dev->poll_list, &queue->poll_list);
-+			if (dev->quota < 0)
-+				dev->quota += dev->weight;
-+			else
-+				dev->quota = dev->weight;
-+		} else {
-+			dev_put(dev);
-+			local_irq_disable();
-+		}
-+	}
-+
-+	local_irq_enable();
-+	br_read_unlock(BR_NETPROTO_LOCK);
-+	return;
-+
-+softnet_break:
-+	netdev_rx_stat[this_cpu].time_squeeze++;
-+	__cpu_raise_softirq(this_cpu, NET_RX_SOFTIRQ);
-+
-+	local_irq_enable();
-+	br_read_unlock(BR_NETPROTO_LOCK);
-+}
-+
-+static gifconf_func_t * gifconf_list [NPROTO];
-+
-+/**
-+ *	register_gifconf	-	register a SIOCGIF handler
-+ *	@family: Address family
-+ *	@gifconf: Function handler
-+ *
-+ *	Register protocol dependent address dumping routines. The handler
-+ *	that is passed must not be freed or reused until it has been replaced
-+ *	by another handler.
-+ */
-+ 
-+int register_gifconf(unsigned int family, gifconf_func_t * gifconf)
-+{
-+	if (family>=NPROTO)
-+		return -EINVAL;
-+	gifconf_list[family] = gifconf;
-+	return 0;
-+}
-+
-+
-+/*
-+ *	Map an interface index to its name (SIOCGIFNAME)
-+ */
-+
-+/*
-+ *	We need this ioctl for efficient implementation of the
-+ *	if_indextoname() function required by the IPv6 API.  Without
-+ *	it, we would have to search all the interfaces to find a
-+ *	match.  --pb
-+ */
-+
-+static int dev_ifname(struct ifreq *arg)
-+{
-+	struct net_device *dev;
-+	struct ifreq ifr;
-+
-+	/*
-+	 *	Fetch the caller's info block. 
-+	 */
-+	
-+	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
-+		return -EFAULT;
-+
-+	read_lock(&dev_base_lock);
-+	dev = __dev_get_by_index(ifr.ifr_ifindex);
-+	if (!dev) {
-+		read_unlock(&dev_base_lock);
-+		return -ENODEV;
-+	}
-+
-+	strcpy(ifr.ifr_name, dev->name);
-+	read_unlock(&dev_base_lock);
-+
-+	if (copy_to_user(arg, &ifr, sizeof(struct ifreq)))
-+		return -EFAULT;
-+	return 0;
-+}
-+
-+/*
-+ *	Perform a SIOCGIFCONF call. This structure will change
-+ *	size eventually, and there is nothing I can do about it.
-+ *	Thus we will need a 'compatibility mode'.
-+ */
-+
-+static int dev_ifconf(char *arg)
-+{
-+	struct ifconf ifc;
-+	struct net_device *dev;
-+	char *pos;
-+	int len;
-+	int total;
-+	int i;
-+
-+	/*
-+	 *	Fetch the caller's info block. 
-+	 */
-+	
-+	if (copy_from_user(&ifc, arg, sizeof(struct ifconf)))
-+		return -EFAULT;
-+
-+	pos = ifc.ifc_buf;
-+	len = ifc.ifc_len;
-+
-+	/*
-+	 *	Loop over the interfaces, and write an info block for each. 
-+	 */
-+
-+	total = 0;
-+	for (dev = dev_base; dev != NULL; dev = dev->next) {
-+		for (i=0; i<NPROTO; i++) {
-+			if (gifconf_list[i]) {
-+				int done;
-+				if (pos==NULL) {
-+					done = gifconf_list[i](dev, NULL, 0);
-+				} else {
-+					done = gifconf_list[i](dev, pos+total, len-total);
-+				}
-+				if (done<0) {
-+					return -EFAULT;
-+				}
-+				total += done;
-+			}
-+		}
-+  	}
-+
-+	/*
-+	 *	All done.  Write the updated control block back to the caller. 
-+	 */
-+	ifc.ifc_len = total;
-+
-+	if (copy_to_user(arg, &ifc, sizeof(struct ifconf)))
-+		return -EFAULT; 
-+
-+	/* 
-+	 * 	Both BSD and Solaris return 0 here, so we do too.
-+	 */
-+	return 0;
-+}
-+
-+/*
-+ *	This is invoked by the /proc filesystem handler to display a device
-+ *	in detail.
-+ */
-+
-+#ifdef CONFIG_PROC_FS
-+
-+static int sprintf_stats(char *buffer, struct net_device *dev)
-+{
-+	struct net_device_stats *stats = (dev->get_stats ? dev->get_stats(dev): NULL);
-+	int size;
-+	
-+	if (stats)
-+		size = sprintf(buffer, "%6s:%8lu %7lu %4lu %4lu %4lu %5lu %10lu %9lu %8lu %7lu %4lu %4lu %4lu %5lu %7lu %10lu\n",
-+ 		   dev->name,
-+		   stats->rx_bytes,
-+		   stats->rx_packets, stats->rx_errors,
-+		   stats->rx_dropped + stats->rx_missed_errors,
-+		   stats->rx_fifo_errors,
-+		   stats->rx_length_errors + stats->rx_over_errors
-+		   + stats->rx_crc_errors + stats->rx_frame_errors,
-+		   stats->rx_compressed, stats->multicast,
-+		   stats->tx_bytes,
-+		   stats->tx_packets, stats->tx_errors, stats->tx_dropped,
-+		   stats->tx_fifo_errors, stats->collisions,
-+		   stats->tx_carrier_errors + stats->tx_aborted_errors
-+		   + stats->tx_window_errors + stats->tx_heartbeat_errors,
-+		   stats->tx_compressed);
-+	else
-+		size = sprintf(buffer, "%6s: No statistics available.\n", dev->name);
-+
-+	return size;
-+}
-+
-+/*
-+ *	Called from the PROCfs module. This now uses the new arbitrary sized /proc/net interface
-+ *	to create /proc/net/dev
-+ */
-+ 
-+static int dev_get_info(char *buffer, char **start, off_t offset, int length)
-+{
-+	int len = 0;
-+	off_t begin = 0;
-+	off_t pos = 0;
-+	int size;
-+	struct net_device *dev;
-+
-+
-+	size = sprintf(buffer, 
-+		"Inter-|   Receive                                                |  Transmit\n"
-+		" face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed\n");
-+	
-+	pos += size;
-+	len += size;
-+	
-+
-+	read_lock(&dev_base_lock);
-+	for (dev = dev_base; dev != NULL; dev = dev->next) {
-+		size = sprintf_stats(buffer+len, dev);
-+		len += size;
-+		pos = begin + len;
-+				
-+		if (pos < offset) {
-+			len = 0;
-+			begin = pos;
-+		}
-+		if (pos > offset + length)
-+			break;
-+	}
-+	read_unlock(&dev_base_lock);
-+
-+	*start = buffer + (offset - begin);	/* Start of wanted data */
-+	len -= (offset - begin);		/* Start slop */
-+	if (len > length)
-+		len = length;			/* Ending slop */
-+	if (len < 0)
-+		len = 0;
-+	return len;
-+}
-+
-+static int dev_proc_stats(char *buffer, char **start, off_t offset,
-+			  int length, int *eof, void *data)
-+{
-+	int i, lcpu;
-+	int len=0;
-+
-+	for (lcpu=0; lcpu<smp_num_cpus; lcpu++) {
-+		i = cpu_logical_map(lcpu);
-+		len += sprintf(buffer+len, "%08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
-+			       netdev_rx_stat[i].total,
-+			       netdev_rx_stat[i].dropped,
-+			       netdev_rx_stat[i].time_squeeze,
-+			       netdev_rx_stat[i].throttled,
-+			       netdev_rx_stat[i].fastroute_hit,
-+			       netdev_rx_stat[i].fastroute_success,
-+			       netdev_rx_stat[i].fastroute_defer,
-+			       netdev_rx_stat[i].fastroute_deferred_out,
-+#if 0
-+			       netdev_rx_stat[i].fastroute_latency_reduction
-+#else
-+			       netdev_rx_stat[i].cpu_collision
-+#endif
-+			       );
-+	}
-+
-+	len -= offset;
-+
-+	if (len > length)
-+		len = length;
-+	if (len < 0)
-+		len = 0;
-+
-+	*start = buffer + offset;
-+	*eof = 1;
-+
-+	return len;
-+}
-+
-+#endif	/* CONFIG_PROC_FS */
-+
-+
-+/**
-+ *	netdev_set_master	-	set up master/slave pair
-+ *	@slave: slave device
-+ *	@master: new master device
-+ *
-+ *	Changes the master device of the slave. Pass %NULL to break the
-+ *	bonding. The caller must hold the RTNL semaphore. On a failure
-+ *	a negative errno code is returned. On success the reference counts
-+ *	are adjusted, %RTM_NEWLINK is sent to the routing socket and the
-+ *	function returns zero.
-+ */
-+ 
-+int netdev_set_master(struct net_device *slave, struct net_device *master)
-+{
-+	struct net_device *old = slave->master;
-+
-+	ASSERT_RTNL();
-+
-+	if (master) {
-+		if (old)
-+			return -EBUSY;
-+		dev_hold(master);
-+	}
-+
-+	br_write_lock_bh(BR_NETPROTO_LOCK);
-+	slave->master = master;
-+	br_write_unlock_bh(BR_NETPROTO_LOCK);
-+
-+	if (old)
-+		dev_put(old);
-+
-+	if (master)
-+		slave->flags |= IFF_SLAVE;
-+	else
-+		slave->flags &= ~IFF_SLAVE;
-+
-+	rtmsg_ifinfo(RTM_NEWLINK, slave, IFF_SLAVE);
-+	return 0;
-+}
-+
-+/**
-+ *	dev_set_promiscuity	- update promiscuity count on a device
-+ *	@dev: device
-+ *	@inc: modifier
-+ *
-+ *	Add or remove promsicuity from a device. While the count in the device
-+ *	remains above zero the interface remains promiscuous. Once it hits zero
-+ *	the device reverts back to normal filtering operation. A negative inc
-+ *	value is used to drop promiscuity on the device.
-+ */
-+ 
-+void dev_set_promiscuity(struct net_device *dev, int inc)
-+{
-+	unsigned short old_flags = dev->flags;
-+
-+	dev->flags |= IFF_PROMISC;
-+	if ((dev->promiscuity += inc) == 0)
-+		dev->flags &= ~IFF_PROMISC;
-+	if (dev->flags^old_flags) {
-+#ifdef CONFIG_NET_FASTROUTE
-+		if (dev->flags&IFF_PROMISC) {
-+			netdev_fastroute_obstacles++;
-+			dev_clear_fastroute(dev);
-+		} else
-+			netdev_fastroute_obstacles--;
-+#endif
-+		dev_mc_upload(dev);
-+		printk(KERN_INFO "device %s %s promiscuous mode\n",
-+		       dev->name, (dev->flags&IFF_PROMISC) ? "entered" : "left");
-+	}
-+}
-+
-+/**
-+ *	dev_set_allmulti	- update allmulti count on a device
-+ *	@dev: device
-+ *	@inc: modifier
-+ *
-+ *	Add or remove reception of all multicast frames to a device. While the
-+ *	count in the device remains above zero the interface remains listening
-+ *	to all interfaces. Once it hits zero the device reverts back to normal
-+ *	filtering operation. A negative @inc value is used to drop the counter
-+ *	when releasing a resource needing all multicasts.
-+ */
-+
-+void dev_set_allmulti(struct net_device *dev, int inc)
-+{
-+	unsigned short old_flags = dev->flags;
-+
-+	dev->flags |= IFF_ALLMULTI;
-+	if ((dev->allmulti += inc) == 0)
-+		dev->flags &= ~IFF_ALLMULTI;
-+	if (dev->flags^old_flags)
-+		dev_mc_upload(dev);
-+}
-+
-+int dev_change_flags(struct net_device *dev, unsigned flags)
-+{
-+	int ret;
-+	int old_flags = dev->flags;
-+
-+	/*
-+	 *	Set the flags on our device.
-+	 */
-+
-+	dev->flags = (flags & (IFF_DEBUG|IFF_NOTRAILERS|IFF_NOARP|IFF_DYNAMIC|
-+			       IFF_MULTICAST|IFF_PORTSEL|IFF_AUTOMEDIA)) |
-+				       (dev->flags & (IFF_UP|IFF_VOLATILE|IFF_PROMISC|IFF_ALLMULTI));
-+
-+	/*
-+	 *	Load in the correct multicast list now the flags have changed.
-+	 */				
-+
-+	dev_mc_upload(dev);
-+
-+	/*
-+	 *	Have we downed the interface. We handle IFF_UP ourselves
-+	 *	according to user attempts to set it, rather than blindly
-+	 *	setting it.
-+	 */
-+
-+	ret = 0;
-+	if ((old_flags^flags)&IFF_UP)	/* Bit is different  ? */
-+	{
-+		ret = ((old_flags & IFF_UP) ? dev_close : dev_open)(dev);
-+
-+		if (ret == 0) 
-+			dev_mc_upload(dev);
-+	}
-+
-+	if (dev->flags&IFF_UP &&
-+	    ((old_flags^dev->flags)&~(IFF_UP|IFF_PROMISC|IFF_ALLMULTI|IFF_VOLATILE)))
-+		notifier_call_chain(&netdev_chain, NETDEV_CHANGE, dev);
-+
-+	if ((flags^dev->gflags)&IFF_PROMISC) {
-+		int inc = (flags&IFF_PROMISC) ? +1 : -1;
-+		dev->gflags ^= IFF_PROMISC;
-+		dev_set_promiscuity(dev, inc);
-+	}
-+
-+	/* NOTE: order of synchronization of IFF_PROMISC and IFF_ALLMULTI
-+	   is important. Some (broken) drivers set IFF_PROMISC, when
-+	   IFF_ALLMULTI is requested not asking us and not reporting.
-+	 */
-+	if ((flags^dev->gflags)&IFF_ALLMULTI) {
-+		int inc = (flags&IFF_ALLMULTI) ? +1 : -1;
-+		dev->gflags ^= IFF_ALLMULTI;
-+		dev_set_allmulti(dev, inc);
-+	}
-+
-+	if (old_flags^dev->flags)
-+		rtmsg_ifinfo(RTM_NEWLINK, dev, old_flags^dev->flags);
-+
-+	return ret;
-+}
-+
-+/*
-+ *	Perform the SIOCxIFxxx calls. 
-+ */
-+ 
-+static int dev_ifsioc(struct ifreq *ifr, unsigned int cmd)
-+{
-+	struct net_device *dev;
-+	int err;
-+
-+	if ((dev = __dev_get_by_name(ifr->ifr_name)) == NULL)
-+		return -ENODEV;
-+
-+	switch(cmd) 
-+	{
-+		case SIOCGIFFLAGS:	/* Get interface flags */
-+			ifr->ifr_flags = (dev->flags&~(IFF_PROMISC|IFF_ALLMULTI|IFF_RUNNING))
-+				|(dev->gflags&(IFF_PROMISC|IFF_ALLMULTI));
-+			if (netif_running(dev) && netif_carrier_ok(dev))
-+				ifr->ifr_flags |= IFF_RUNNING;
-+			return 0;
-+
-+		case SIOCSIFFLAGS:	/* Set interface flags */
-+			return dev_change_flags(dev, ifr->ifr_flags);
-+		
-+		case SIOCGIFMETRIC:	/* Get the metric on the interface (currently unused) */
-+			ifr->ifr_metric = 0;
-+			return 0;
-+			
-+		case SIOCSIFMETRIC:	/* Set the metric on the interface (currently unused) */
-+			return -EOPNOTSUPP;
-+	
-+		case SIOCGIFMTU:	/* Get the MTU of a device */
-+			ifr->ifr_mtu = dev->mtu;
-+			return 0;
-+	
-+		case SIOCSIFMTU:	/* Set the MTU of a device */
-+			if (ifr->ifr_mtu == dev->mtu)
-+				return 0;
-+
-+			/*
-+			 *	MTU must be positive.
-+			 */
-+			 
-+			if (ifr->ifr_mtu<0)
-+				return -EINVAL;
-+
-+			if (!netif_device_present(dev))
-+				return -ENODEV;
-+
-+			if (dev->change_mtu)
-+				err = dev->change_mtu(dev, ifr->ifr_mtu);
-+			else {
-+				dev->mtu = ifr->ifr_mtu;
-+				err = 0;
-+			}
-+			if (!err && dev->flags&IFF_UP)
-+				notifier_call_chain(&netdev_chain, NETDEV_CHANGEMTU, dev);
-+			return err;
-+
-+		case SIOCGIFHWADDR:
-+			memcpy(ifr->ifr_hwaddr.sa_data,dev->dev_addr, MAX_ADDR_LEN);
-+			ifr->ifr_hwaddr.sa_family=dev->type;
-+			return 0;
-+				
-+		case SIOCSIFHWADDR:
-+			if (dev->set_mac_address == NULL)
-+				return -EOPNOTSUPP;
-+			if (ifr->ifr_hwaddr.sa_family!=dev->type)
-+				return -EINVAL;
-+			if (!netif_device_present(dev))
-+				return -ENODEV;
-+			err = dev->set_mac_address(dev, &ifr->ifr_hwaddr);
-+			if (!err)
-+				notifier_call_chain(&netdev_chain, NETDEV_CHANGEADDR, dev);
-+			return err;
-+			
-+		case SIOCSIFHWBROADCAST:
-+			if (ifr->ifr_hwaddr.sa_family!=dev->type)
-+				return -EINVAL;
-+			memcpy(dev->broadcast, ifr->ifr_hwaddr.sa_data, MAX_ADDR_LEN);
-+			notifier_call_chain(&netdev_chain, NETDEV_CHANGEADDR, dev);
-+			return 0;
-+
-+		case SIOCGIFMAP:
-+			ifr->ifr_map.mem_start=dev->mem_start;
-+			ifr->ifr_map.mem_end=dev->mem_end;
-+			ifr->ifr_map.base_addr=dev->base_addr;
-+			ifr->ifr_map.irq=dev->irq;
-+			ifr->ifr_map.dma=dev->dma;
-+			ifr->ifr_map.port=dev->if_port;
-+			return 0;
-+			
-+		case SIOCSIFMAP:
-+			if (dev->set_config) {
-+				if (!netif_device_present(dev))
-+					return -ENODEV;
-+				return dev->set_config(dev,&ifr->ifr_map);
-+			}
-+			return -EOPNOTSUPP;
-+			
-+		case SIOCADDMULTI:
-+			if (dev->set_multicast_list == NULL ||
-+			    ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
-+				return -EINVAL;
-+			if (!netif_device_present(dev))
-+				return -ENODEV;
-+			dev_mc_add(dev,ifr->ifr_hwaddr.sa_data, dev->addr_len, 1);
-+			return 0;
-+
-+		case SIOCDELMULTI:
-+			if (dev->set_multicast_list == NULL ||
-+			    ifr->ifr_hwaddr.sa_family!=AF_UNSPEC)
-+				return -EINVAL;
-+			if (!netif_device_present(dev))
-+				return -ENODEV;
-+			dev_mc_delete(dev,ifr->ifr_hwaddr.sa_data,dev->addr_len, 1);
-+			return 0;
-+
-+		case SIOCGIFINDEX:
-+			ifr->ifr_ifindex = dev->ifindex;
-+			return 0;
-+
-+		case SIOCGIFTXQLEN:
-+			ifr->ifr_qlen = dev->tx_queue_len;
-+			return 0;
-+
-+		case SIOCSIFTXQLEN:
-+			if (ifr->ifr_qlen<0)
-+				return -EINVAL;
-+			dev->tx_queue_len = ifr->ifr_qlen;
-+			return 0;
-+
-+		case SIOCSIFNAME:
-+			if (dev->flags&IFF_UP)
-+				return -EBUSY;
-+			/* Check if name contains a wildcard */
-+			if (strchr(ifr->ifr_newname, '%')) {
-+				char format[IFNAMSIZ + 1];
-+				int ret;
-+				memcpy(format, ifr->ifr_newname, IFNAMSIZ);
-+				format[IFNAMSIZ-1] = 0;
-+				/* Find a free name based on format.
-+				 * dev_alloc_name() replaces "%d" with at max
-+				 * 2 digits, so no name overflow. - Jean II */
-+				ret = dev_alloc_name(dev, format);
-+				if (ret < 0)
-+					return ret;
-+				/* Copy the new name back to caller. */
-+				strncpy(ifr->ifr_newname, dev->name, IFNAMSIZ);
-+			} else {
-+				if (__dev_get_by_name(ifr->ifr_newname))
-+					return -EEXIST;
-+				memcpy(dev->name, ifr->ifr_newname, IFNAMSIZ);
-+				dev->name[IFNAMSIZ-1] = 0;
-+			}
-+			notifier_call_chain(&netdev_chain, NETDEV_CHANGENAME, dev);
-+			return 0;
-+
-+		/*
-+		 *	Unknown or private ioctl
-+		 */
-+
-+		default:
-+			if ((cmd >= SIOCDEVPRIVATE &&
-+			    cmd <= SIOCDEVPRIVATE + 15) ||
-+			    cmd == SIOCBONDENSLAVE ||
-+			    cmd == SIOCBONDRELEASE ||
-+			    cmd == SIOCBONDSETHWADDR ||
-+			    cmd == SIOCBONDSLAVEINFOQUERY ||
-+			    cmd == SIOCBONDINFOQUERY ||
-+			    cmd == SIOCBONDCHANGEACTIVE ||
-+			    cmd == SIOCGMIIPHY ||
-+			    cmd == SIOCGMIIREG ||
-+			    cmd == SIOCSMIIREG ||
-+			    cmd == SIOCWANDEV) {
-+				if (dev->do_ioctl) {
-+					if (!netif_device_present(dev))
-+						return -ENODEV;
-+					return dev->do_ioctl(dev, ifr, cmd);
-+				}
-+				return -EOPNOTSUPP;
-+			}
-+
-+	}
-+	return -EINVAL;
-+}
-+
-+/*
-+ *	This function handles all "interface"-type I/O control requests. The actual
-+ *	'doing' part of this is dev_ifsioc above.
-+ */
-+
-+/**
-+ *	dev_ioctl	-	network device ioctl
-+ *	@cmd: command to issue
-+ *	@arg: pointer to a struct ifreq in user space
-+ *
-+ *	Issue ioctl functions to devices. This is normally called by the
-+ *	user space syscall interfaces but can sometimes be useful for 
-+ *	other purposes. The return value is the return from the syscall if
-+ *	positive or a negative errno code on error.
-+ */
-+
-+int dev_ioctl(unsigned int cmd, void *arg)
-+{
-+	struct ifreq ifr;
-+	int ret;
-+	char *colon;
-+
-+	/* One special case: SIOCGIFCONF takes ifconf argument
-+	   and requires shared lock, because it sleeps writing
-+	   to user space.
-+	 */
-+	   
-+	if (cmd == SIOCGIFCONF) {
-+		rtnl_shlock();
-+		ret = dev_ifconf((char *) arg);
-+		rtnl_shunlock();
-+		return ret;
-+	}
-+	if (cmd == SIOCGIFNAME) {
-+		return dev_ifname((struct ifreq *)arg);
-+	}
-+
-+	if (copy_from_user(&ifr, arg, sizeof(struct ifreq)))
-+		return -EFAULT;
-+
-+	ifr.ifr_name[IFNAMSIZ-1] = 0;
-+
-+	colon = strchr(ifr.ifr_name, ':');
-+	if (colon)
-+		*colon = 0;
-+
-+	/*
-+	 *	See which interface the caller is talking about. 
-+	 */
-+	 
-+	switch(cmd) 
-+	{
-+		/*
-+		 *	These ioctl calls:
-+		 *	- can be done by all.
-+		 *	- atomic and do not require locking.
-+		 *	- return a value
-+		 */
-+		 
-+		case SIOCGIFFLAGS:
-+		case SIOCGIFMETRIC:
-+		case SIOCGIFMTU:
-+		case SIOCGIFHWADDR:
-+		case SIOCGIFSLAVE:
-+		case SIOCGIFMAP:
-+		case SIOCGIFINDEX:
-+		case SIOCGIFTXQLEN:
-+			dev_load(ifr.ifr_name);
-+			read_lock(&dev_base_lock);
-+			ret = dev_ifsioc(&ifr, cmd);
-+			read_unlock(&dev_base_lock);
-+			if (!ret) {
-+				if (colon)
-+					*colon = ':';
-+				if (copy_to_user(arg, &ifr, sizeof(struct ifreq)))
-+					return -EFAULT;
-+			}
-+			return ret;
-+
-+		case SIOCETHTOOL:
-+			dev_load(ifr.ifr_name);
-+			rtnl_lock();
-+			ret = dev_ethtool(&ifr);
-+			rtnl_unlock();
-+			if (!ret) {
-+				if (colon)
-+					*colon = ':';
-+				if (copy_to_user(arg, &ifr,
-+						 sizeof(struct ifreq)))
-+					ret = -EFAULT;
-+			}
-+			return ret;
-+
-+		/*
-+		 *	These ioctl calls:
-+		 *	- require superuser power.
-+		 *	- require strict serialization.
-+		 *	- return a value
-+		 */
-+		 
-+		case SIOCSIFNAME:
-+		case SIOCGMIIPHY:
-+		case SIOCGMIIREG:
-+			if (!capable(CAP_NET_ADMIN))
-+				return -EPERM;
-+			dev_load(ifr.ifr_name);
-+			dev_probe_lock();
-+			rtnl_lock();
-+			ret = dev_ifsioc(&ifr, cmd);
-+			rtnl_unlock();
-+			dev_probe_unlock();
-+			if (!ret) {
-+				if (colon)
-+					*colon = ':';
-+				if (copy_to_user(arg, &ifr, sizeof(struct ifreq)))
-+					return -EFAULT;
-+			}
-+			return ret;
-+
-+		/*
-+		 *	These ioctl calls:
-+		 *	- require superuser power.
-+		 *	- require strict serialization.
-+		 *	- do not return a value
-+		 */
-+		 
-+		case SIOCSIFFLAGS:
-+		case SIOCSIFMETRIC:
-+		case SIOCSIFMTU:
-+		case SIOCSIFMAP:
-+		case SIOCSIFHWADDR:
-+		case SIOCSIFSLAVE:
-+		case SIOCADDMULTI:
-+		case SIOCDELMULTI:
-+		case SIOCSIFHWBROADCAST:
-+		case SIOCSIFTXQLEN:
-+		case SIOCSMIIREG:
-+		case SIOCBONDENSLAVE:
-+		case SIOCBONDRELEASE:
-+		case SIOCBONDSETHWADDR:
-+		case SIOCBONDSLAVEINFOQUERY:
-+		case SIOCBONDINFOQUERY:
-+		case SIOCBONDCHANGEACTIVE:
-+			if (!capable(CAP_NET_ADMIN))
-+				return -EPERM;
-+			dev_load(ifr.ifr_name);
-+			dev_probe_lock();
-+			rtnl_lock();
-+			ret = dev_ifsioc(&ifr, cmd);
-+			rtnl_unlock();
-+			dev_probe_unlock();
-+			return ret;
-+	
-+		case SIOCGIFMEM:
-+			/* Get the per device memory space. We can add this but currently
-+			   do not support it */
-+		case SIOCSIFMEM:
-+			/* Set the per device memory buffer space. Not applicable in our case */
-+		case SIOCSIFLINK:
-+			return -EINVAL;
-+
-+		/*
-+		 *	Unknown or private ioctl.
-+		 */	
-+		 
-+		default:
-+			if (cmd == SIOCWANDEV ||
-+			    (cmd >= SIOCDEVPRIVATE &&
-+			     cmd <= SIOCDEVPRIVATE + 15)) {
-+				dev_load(ifr.ifr_name);
-+				dev_probe_lock();
-+				rtnl_lock();
-+				ret = dev_ifsioc(&ifr, cmd);
-+				rtnl_unlock();
-+				dev_probe_unlock();
-+				if (!ret && copy_to_user(arg, &ifr, sizeof(struct ifreq)))
-+					return -EFAULT;
-+				return ret;
-+			}
-+#ifdef WIRELESS_EXT
-+			/* Take care of Wireless Extensions */
-+			if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) {
-+				/* If command is `set a parameter', or
-+				 * `get the encoding parameters', check if
-+				 * the user has the right to do it */
-+				if (IW_IS_SET(cmd) || (cmd == SIOCGIWENCODE)) {
-+					if(!capable(CAP_NET_ADMIN))
-+						return -EPERM;
-+				}
-+				dev_load(ifr.ifr_name);
-+				rtnl_lock();
-+				/* Follow me in net/core/wireless.c */
-+				ret = wireless_process_ioctl(&ifr, cmd);
-+				rtnl_unlock();
-+				if (!ret && IW_IS_GET(cmd) &&
-+				    copy_to_user(arg, &ifr, sizeof(struct ifreq)))
-+					return -EFAULT;
-+				return ret;
-+			}
-+#endif	/* WIRELESS_EXT */
-+			return -EINVAL;
-+	}
-+}
-+
-+
-+/**
-+ *	dev_new_index	-	allocate an ifindex
-+ *
-+ *	Returns a suitable unique value for a new device interface
-+ *	number.  The caller must hold the rtnl semaphore or the
-+ *	dev_base_lock to be sure it remains unique.
-+ */
-+ 
-+int dev_new_index(void)
-+{
-+	static int ifindex;
-+	for (;;) {
-+		if (++ifindex <= 0)
-+			ifindex=1;
-+		if (__dev_get_by_index(ifindex) == NULL)
-+			return ifindex;
-+	}
-+}
-+
-+static int dev_boot_phase = 1;
-+
-+/**
-+ *	register_netdevice	- register a network device
-+ *	@dev: device to register
-+ *	
-+ *	Take a completed network device structure and add it to the kernel
-+ *	interfaces. A %NETDEV_REGISTER message is sent to the netdev notifier
-+ *	chain. 0 is returned on success. A negative errno code is returned
-+ *	on a failure to set up the device, or if the name is a duplicate.
-+ *
-+ *	Callers must hold the rtnl semaphore.  See the comment at the
-+ *	end of Space.c for details about the locking.  You may want
-+ *	register_netdev() instead of this.
-+ *
-+ *	BUGS:
-+ *	The locking appears insufficient to guarantee two parallel registers
-+ *	will not get the same name.
-+ */
-+
-+int net_dev_init(void);
-+
-+int register_netdevice(struct net_device *dev)
-+{
-+	struct net_device *d, **dp;
-+#ifdef CONFIG_NET_DIVERT
-+	int ret;
-+#endif
-+
-+	spin_lock_init(&dev->queue_lock);
-+	spin_lock_init(&dev->xmit_lock);
-+	dev->xmit_lock_owner = -1;
-+#ifdef CONFIG_NET_FASTROUTE
-+	dev->fastpath_lock=RW_LOCK_UNLOCKED;
-+#endif
-+
-+	if (dev_boot_phase)
-+		net_dev_init();
-+
-+#ifdef CONFIG_NET_DIVERT
-+	ret = alloc_divert_blk(dev);
-+	if (ret)
-+		return ret;
-+#endif /* CONFIG_NET_DIVERT */
-+	
-+	dev->iflink = -1;
-+
-+	/* Init, if this function is available */
-+	if (dev->init && dev->init(dev) != 0) {
-+#ifdef CONFIG_NET_DIVERT
-+		free_divert_blk(dev);
-+#endif
-+		return -EIO;
-+	}
-+
-+	dev->ifindex = dev_new_index();
-+	if (dev->iflink == -1)
-+		dev->iflink = dev->ifindex;
-+
-+	/* Check for existence, and append to tail of chain */
-+	for (dp=&dev_base; (d=*dp) != NULL; dp=&d->next) {
-+		if (d == dev || strcmp(d->name, dev->name) == 0) {
-+#ifdef CONFIG_NET_DIVERT
-+			free_divert_blk(dev);
-+#endif
-+			return -EEXIST;
-+		}
-+	}
-+	
-+	/* Fix illegal SG+CSUM combinations. */
-+	if ((dev->features & NETIF_F_SG) &&
-+	    !(dev->features & (NETIF_F_IP_CSUM |
-+			       NETIF_F_NO_CSUM |
-+			       NETIF_F_HW_CSUM))) {
-+		printk("%s: Dropping NETIF_F_SG since no checksum feature.\n",
-+		       dev->name);
-+		dev->features &= ~NETIF_F_SG;
-+	}
-+
-+	/*
-+	 *	nil rebuild_header routine,
-+	 *	that should be never called and used as just bug trap.
-+	 */
-+
-+	if (dev->rebuild_header == NULL)
-+		dev->rebuild_header = default_rebuild_header;
-+
-+	/*
-+	 *	Default initial state at registry is that the
-+	 *	device is present.
-+	 */
-+
-+	set_bit(__LINK_STATE_PRESENT, &dev->state);
-+
-+	dev->next = NULL;
-+	dev_init_scheduler(dev);
-+	write_lock_bh(&dev_base_lock);
-+	*dp = dev;
-+	dev_hold(dev);
-+	dev->deadbeaf = 0;
-+	write_unlock_bh(&dev_base_lock);
-+
-+	/* Notify protocols, that a new device appeared. */
-+	notifier_call_chain(&netdev_chain, NETDEV_REGISTER, dev);
-+
-+	net_run_sbin_hotplug(dev, "register");
-+
-+	return 0;
-+}
-+
-+/**
-+ *	netdev_finish_unregister - complete unregistration
-+ *	@dev: device
-+ *
-+ *	Destroy and free a dead device. A value of zero is returned on
-+ *	success.
-+ */
-+ 
-+int netdev_finish_unregister(struct net_device *dev)
-+{
-+	BUG_TRAP(dev->ip_ptr==NULL);
-+	BUG_TRAP(dev->ip6_ptr==NULL);
-+	BUG_TRAP(dev->dn_ptr==NULL);
-+
-+	if (!dev->deadbeaf) {
-+		printk(KERN_ERR "Freeing alive device %p, %s\n", dev, dev->name);
-+		return 0;
-+	}
-+#ifdef NET_REFCNT_DEBUG
-+	printk(KERN_DEBUG "netdev_finish_unregister: %s%s.\n", dev->name,
-+	       (dev->features & NETIF_F_DYNALLOC)?"":", old style");
-+#endif
-+	if (dev->destructor)
-+		dev->destructor(dev);
-+	if (dev->features & NETIF_F_DYNALLOC)
-+		kfree(dev);
-+	return 0;
-+}
-+
-+/**
-+ *	unregister_netdevice - remove device from the kernel
-+ *	@dev: device
-+ *
-+ *	This function shuts down a device interface and removes it
-+ *	from the kernel tables. On success 0 is returned, on a failure
-+ *	a negative errno code is returned.
-+ *
-+ *	Callers must hold the rtnl semaphore.  See the comment at the
-+ *	end of Space.c for details about the locking.  You may want
-+ *	unregister_netdev() instead of this.
-+ */
-+
-+int unregister_netdevice(struct net_device *dev)
-+{
-+	unsigned long now, warning_time;
-+	struct net_device *d, **dp;
-+
-+	/* If device is running, close it first. */
-+	if (dev->flags & IFF_UP)
-+		dev_close(dev);
-+
-+	BUG_TRAP(dev->deadbeaf==0);
-+	dev->deadbeaf = 1;
-+
-+	/* And unlink it from device chain. */
-+	for (dp = &dev_base; (d=*dp) != NULL; dp=&d->next) {
-+		if (d == dev) {
-+			write_lock_bh(&dev_base_lock);
-+			*dp = d->next;
-+			write_unlock_bh(&dev_base_lock);
-+			break;
-+		}
-+	}
-+	if (d == NULL) {
-+		printk(KERN_DEBUG "unregister_netdevice: device %s/%p never was registered\n", dev->name, dev);
-+		return -ENODEV;
-+	}
-+
-+	/* Synchronize to net_rx_action. */
-+	br_write_lock_bh(BR_NETPROTO_LOCK);
-+	br_write_unlock_bh(BR_NETPROTO_LOCK);
-+
-+	if (dev_boot_phase == 0) {
-+#ifdef CONFIG_NET_FASTROUTE
-+		dev_clear_fastroute(dev);
-+#endif
-+
-+		/* Shutdown queueing discipline. */
-+		dev_shutdown(dev);
-+
-+		net_run_sbin_hotplug(dev, "unregister");
-+
-+		/* Notify protocols, that we are about to destroy
-+		   this device. They should clean all the things.
-+		 */
-+		notifier_call_chain(&netdev_chain, NETDEV_UNREGISTER, dev);
-+
-+		/*
-+		 *	Flush the multicast chain
-+		 */
-+		dev_mc_discard(dev);
-+	}
-+
-+	if (dev->uninit)
-+		dev->uninit(dev);
-+
-+	/* Notifier chain MUST detach us from master device. */
-+	BUG_TRAP(dev->master==NULL);
-+
-+#ifdef CONFIG_NET_DIVERT
-+	free_divert_blk(dev);
-+#endif
-+
-+	if (dev->features & NETIF_F_DYNALLOC) {
-+#ifdef NET_REFCNT_DEBUG
-+		if (atomic_read(&dev->refcnt) != 1)
-+			printk(KERN_DEBUG "unregister_netdevice: holding %s refcnt=%d\n", dev->name, atomic_read(&dev->refcnt)-1);
-+#endif
-+		dev_put(dev);
-+		return 0;
-+	}
-+
-+	/* Last reference is our one */
-+	if (atomic_read(&dev->refcnt) == 1) {
-+		dev_put(dev);
-+		return 0;
-+	}
-+
-+#ifdef NET_REFCNT_DEBUG
-+	printk("unregister_netdevice: waiting %s refcnt=%d\n", dev->name, atomic_read(&dev->refcnt));
-+#endif
-+
-+	/* EXPLANATION. If dev->refcnt is not now 1 (our own reference)
-+	   it means that someone in the kernel still has a reference
-+	   to this device and we cannot release it.
-+
-+	   "New style" devices have destructors, hence we can return from this
-+	   function and destructor will do all the work later.  As of kernel 2.4.0
-+	   there are very few "New Style" devices.
-+
-+	   "Old style" devices expect that the device is free of any references
-+	   upon exit from this function.
-+	   We cannot return from this function until all such references have
-+	   fallen away.  This is because the caller of this function will probably
-+	   immediately kfree(*dev) and then be unloaded via sys_delete_module.
-+
-+	   So, we linger until all references fall away.  The duration of the
-+	   linger is basically unbounded! It is driven by, for example, the
-+	   current setting of sysctl_ipfrag_time.
-+
-+	   After 1 second, we start to rebroadcast unregister notifications
-+	   in hope that careless clients will release the device.
-+
-+	 */
-+
-+	now = warning_time = jiffies;
-+	while (atomic_read(&dev->refcnt) != 1) {
-+		if ((jiffies - now) > 1*HZ) {
-+			/* Rebroadcast unregister notification */
-+			notifier_call_chain(&netdev_chain, NETDEV_UNREGISTER, dev);
-+		}
-+		current->state = TASK_INTERRUPTIBLE;
-+		schedule_timeout(HZ/4);
-+		current->state = TASK_RUNNING;
-+		if ((jiffies - warning_time) > 10*HZ) {
-+			printk(KERN_EMERG "unregister_netdevice: waiting for %s to "
-+					"become free. Usage count = %d\n",
-+					dev->name, atomic_read(&dev->refcnt));
-+			warning_time = jiffies;
-+		}
-+	}
-+	dev_put(dev);
-+	return 0;
-+}
-+
-+
-+/*
-+ *	Initialize the DEV module. At boot time this walks the device list and
-+ *	unhooks any devices that fail to initialise (normally hardware not 
-+ *	present) and leaves us with a valid list of present and active devices.
-+ *
-+ */
-+
-+extern void net_device_init(void);
-+extern void ip_auto_config(void);
-+struct proc_dir_entry *proc_net_drivers;
-+#ifdef CONFIG_NET_DIVERT
-+extern void dv_init(void);
-+#endif /* CONFIG_NET_DIVERT */
-+
-+
-+/*
-+ *       Callers must hold the rtnl semaphore.  See the comment at the
-+ *       end of Space.c for details about the locking.
-+ */
-+int __init net_dev_init(void)
-+{
-+	struct net_device *dev, **dp;
-+	int i;
-+
-+	if (!dev_boot_phase)
-+		return 0;
-+
-+
-+#ifdef CONFIG_NET_DIVERT
-+	dv_init();
-+#endif /* CONFIG_NET_DIVERT */
-+	
-+	/*
-+	 *	Initialise the packet receive queues.
-+	 */
-+
-+	for (i = 0; i < NR_CPUS; i++) {
-+		struct softnet_data *queue;
-+
-+		queue = &softnet_data[i];
-+		skb_queue_head_init(&queue->input_pkt_queue);
-+		queue->throttle = 0;
-+		queue->cng_level = 0;
-+		queue->avg_blog = 10; /* arbitrary non-zero */
-+		queue->completion_queue = NULL;
-+		INIT_LIST_HEAD(&queue->poll_list);
-+		set_bit(__LINK_STATE_START, &queue->blog_dev.state);
-+		queue->blog_dev.weight = weight_p;
-+		queue->blog_dev.poll = process_backlog;
-+		atomic_set(&queue->blog_dev.refcnt, 1);
-+	}
-+
-+#ifdef CONFIG_NET_PROFILE
-+	net_profile_init();
-+	NET_PROFILE_REGISTER(dev_queue_xmit);
-+	NET_PROFILE_REGISTER(softnet_process);
-+#endif
-+
-+#ifdef OFFLINE_SAMPLE
-+	samp_timer.expires = jiffies + (10 * HZ);
-+	add_timer(&samp_timer);
-+#endif
-+
-+	/*
-+	 *	Add the devices.
-+	 *	If the call to dev->init fails, the dev is removed
-+	 *	from the chain disconnecting the device until the
-+	 *	next reboot.
-+	 *
-+	 *	NB At boot phase networking is dead. No locking is required.
-+	 *	But we still preserve dev_base_lock for sanity.
-+	 */
-+
-+	dp = &dev_base;
-+	while ((dev = *dp) != NULL) {
-+		spin_lock_init(&dev->queue_lock);
-+		spin_lock_init(&dev->xmit_lock);
-+#ifdef CONFIG_NET_FASTROUTE
-+		dev->fastpath_lock = RW_LOCK_UNLOCKED;
-+#endif
-+		dev->xmit_lock_owner = -1;
-+		dev->iflink = -1;
-+		dev_hold(dev);
-+
-+		/*
-+		 * Allocate name. If the init() fails
-+		 * the name will be reissued correctly.
-+		 */
-+		if (strchr(dev->name, '%'))
-+			dev_alloc_name(dev, dev->name);
-+
-+		/* 
-+		 * Check boot time settings for the device.
-+		 */
-+		netdev_boot_setup_check(dev);
-+
-+		if (dev->init && dev->init(dev)) {
-+			/*
-+			 * It failed to come up. It will be unhooked later.
-+			 * dev_alloc_name can now advance to next suitable
-+			 * name that is checked next.
-+			 */
-+			dev->deadbeaf = 1;
-+			dp = &dev->next;
-+		} else {
-+			dp = &dev->next;
-+			dev->ifindex = dev_new_index();
-+			if (dev->iflink == -1)
-+				dev->iflink = dev->ifindex;
-+			if (dev->rebuild_header == NULL)
-+				dev->rebuild_header = default_rebuild_header;
-+			dev_init_scheduler(dev);
-+			set_bit(__LINK_STATE_PRESENT, &dev->state);
-+		}
-+	}
-+
-+	/*
-+	 * Unhook devices that failed to come up
-+	 */
-+	dp = &dev_base;
-+	while ((dev = *dp) != NULL) {
-+		if (dev->deadbeaf) {
-+			write_lock_bh(&dev_base_lock);
-+			*dp = dev->next;
-+			write_unlock_bh(&dev_base_lock);
-+			dev_put(dev);
-+		} else {
-+			dp = &dev->next;
-+		}
-+	}
-+
-+#ifdef CONFIG_PROC_FS
-+	proc_net_create("dev", 0, dev_get_info);
-+	create_proc_read_entry("net/softnet_stat", 0, 0, dev_proc_stats, NULL);
-+	proc_net_drivers = proc_mkdir("net/drivers", 0);
-+#ifdef WIRELESS_EXT
-+	/* Available in net/core/wireless.c */
-+	proc_net_create("wireless", 0, dev_get_wireless_info);
-+#endif	/* WIRELESS_EXT */
-+#endif	/* CONFIG_PROC_FS */
-+
-+	dev_boot_phase = 0;
-+
-+	open_softirq(NET_TX_SOFTIRQ, net_tx_action, NULL);
-+	open_softirq(NET_RX_SOFTIRQ, net_rx_action, NULL);
-+
-+	dst_init();
-+	dev_mcast_init();
-+
-+#ifdef CONFIG_NET_SCHED
-+	pktsched_init();
-+#endif
-+	/*
-+	 *	Initialise network devices
-+	 */
-+	 
-+	net_device_init();
-+
-+	return 0;
-+}
-+
-+#ifdef CONFIG_HOTPLUG
-+
-+/* Notify userspace when a netdevice event occurs,
-+ * by running '/sbin/hotplug net' with certain
-+ * environment variables set.
-+ */
-+
-+static int net_run_sbin_hotplug(struct net_device *dev, char *action)
-+{
-+	char *argv[3], *envp[5], ifname[12 + IFNAMSIZ], action_str[32];
-+	int i;
-+
-+	sprintf(ifname, "INTERFACE=%s", dev->name);
-+	sprintf(action_str, "ACTION=%s", action);
-+
-+        i = 0;
-+        argv[i++] = hotplug_path;
-+        argv[i++] = "net";
-+        argv[i] = 0;
-+
-+	i = 0;
-+	/* minimal command environment */
-+	envp [i++] = "HOME=/";
-+	envp [i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
-+	envp [i++] = ifname;
-+	envp [i++] = action_str;
-+	envp [i] = 0;
-+	
-+	return call_usermodehelper(argv [0], argv, envp);
-+}
-+#endif
-diff --unified --recursive --new-file linux-2.4.30/net/netsyms.c linux-2.4.30-1-686-smp-ring3/net/netsyms.c
---- linux-2.4.30/net/netsyms.c	2005-04-04 03:42:20.000000000 +0200
-+++ linux-2.4.30-1-686-smp-ring3/net/netsyms.c	2005-10-22 23:08:28.016050500 +0200
-@@ -628,3 +628,18 @@
- #endif /* CONFIG_NET_RADIO || CONFIG_NET_PCMCIA_RADIO */
- 
- #endif  /* CONFIG_NET */
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+#include <linux/version.h>
-+
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-+#include <linux/ring.h>
-+
-+EXPORT_SYMBOL(get_skb_ring_handler);
-+EXPORT_SYMBOL(set_skb_ring_handler);
-+EXPORT_SYMBOL(do_skb_ring_handler);
-+EXPORT_SYMBOL(get_buffer_ring_handler);
-+EXPORT_SYMBOL(set_buffer_ring_handler);
-+EXPORT_SYMBOL(do_buffer_ring_handler);
-+#endif
-+
-+#endif
-diff --unified --recursive --new-file linux-2.4.30/net/ring/Config.in linux-2.4.30-1-686-smp-ring3/net/ring/Config.in
---- linux-2.4.30/net/ring/Config.in	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.30-1-686-smp-ring3/net/ring/Config.in	2005-10-22 23:08:28.048052500 +0200
-@@ -0,0 +1,4 @@
-+#
-+# PF_RING
-+#
-+tristate '  PF_RING (EXPERIMENTAL)' CONFIG_RING
-diff --unified --recursive --new-file linux-2.4.30/net/ring/Makefile linux-2.4.30-1-686-smp-ring3/net/ring/Makefile
---- linux-2.4.30/net/ring/Makefile	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.30-1-686-smp-ring3/net/ring/Makefile	2005-10-22 23:08:27.420013250 +0200
-@@ -0,0 +1,16 @@
-+#
-+# Makefile for the ring driver.
-+#
-+
-+O_TARGET := ring.o
-+
-+export-objs := ring_packet.o
-+
-+obj-y := ring_packet.o
-+
-+ifeq ($(CONFIG_RING),m)
-+  obj-m += $(O_TARGET)
-+endif
-+
-+include $(TOPDIR)/Rules.make
-+
-diff --unified --recursive --new-file linux-2.4.30/net/ring/ring_packet.c linux-2.4.30-1-686-smp-ring3/net/ring/ring_packet.c
---- linux-2.4.30/net/ring/ring_packet.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.4.30-1-686-smp-ring3/net/ring/ring_packet.c	2005-10-22 23:08:27.440014500 +0200
-@@ -0,0 +1,1623 @@
-+/*
-+ *
-+ * (C) 2004-05 - Luca Deri <deri@ntop.org>
-+ *
-+ * This code includes patches courtesy of
-+ * - Jeff Randall <jrandall@nexvu.com>
-+ * - Helmut Manck <helmut.manck@secunet.com>
-+ * - Brad Doctor <bdoctor@ps-ax.com>
-+ *
-+ */
-+
-+/* FIX: add an entry inside the /proc filesystem */
-+
-+#include <linux/version.h>
-+#include <linux/config.h>
-+#include <linux/module.h>
-+#include <linux/kernel.h>
-+#include <linux/socket.h>
-+#include <linux/skbuff.h>
-+#include <linux/rtnetlink.h>
-+#include <linux/in.h>
-+#include <linux/in6.h>
-+#include <linux/init.h>
-+#include <linux/filter.h>
-+#include <linux/ring.h>
-+#include <linux/ip.h>
-+#include <linux/tcp.h>
-+#include <linux/udp.h>
-+#include <linux/list.h>
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#include <net/xfrm.h>
-+#else
-+#include <linux/poll.h>
-+#endif
-+#include <net/sock.h>
-+#include <asm/io.h>   /* needed for virt_to_phys() */
-+
-+/* #define RING_DEBUG */
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11))
-+static inline int remap_page_range(struct vm_area_struct *vma,
-+				   unsigned long uvaddr,
-+				   unsigned long paddr,
-+				   unsigned long size,
-+				   pgprot_t prot) {
-+  return(remap_pfn_range(vma, uvaddr, paddr >> PAGE_SHIFT,
-+			 size, prot));
-+}
-+#endif
-+
-+/* ************************************************* */
-+
-+#define CLUSTER_LEN       8
-+
-+struct ring_cluster {
-+  u_short             cluster_id; /* 0 = no cluster */
-+  u_short             num_cluster_elements;
-+  enum cluster_type   hashing_mode;
-+  u_short             hashing_id;
-+  struct sock         *sk[CLUSTER_LEN];
-+  struct ring_cluster *next;      /* NULL = last element of the cluster */
-+};
-+
-+/* ************************************************* */
-+
-+struct ring_element {
-+  struct list_head  list;
-+  struct sock      *sk;
-+};
-+
-+/* ************************************************* */
-+
-+struct ring_opt {
-+  struct net_device *ring_netdev;
-+
-+  /* Cluster */
-+  u_short cluster_id; /* 0 = no cluster */
-+
-+  /* Reflector */
-+  struct net_device *reflector_dev;
-+
-+  /* Packet buffers */
-+  unsigned long order;
-+
-+  /* Ring Slots */
-+  unsigned long ring_memory;
-+  FlowSlotInfo *slots_info; /* Basically it points to ring_memory */
-+  char *ring_slots;  /* Basically it points to ring_memory
-+			+sizeof(FlowSlotInfo) */
-+
-+  /* Packet Sampling */
-+  u_int pktToSample, sample_rate;
-+
-+  /* BPF Filter */
-+  struct sk_filter *bpfFilter;
-+
-+  /* Locks */
-+  atomic_t num_ring_slots_waiters;
-+  wait_queue_head_t ring_slots_waitqueue;
-+  rwlock_t ring_index_lock;
-+
-+  /* Indexes (Internal) */
-+  u_int insert_page_id, insert_slot_id;
-+};
-+
-+/* ************************************************* */
-+
-+/* List of all ring sockets. */
-+static struct list_head ring_table;
-+
-+/* List of all clusters */
-+static struct ring_cluster *ring_cluster_list;
-+
-+static rwlock_t ring_mgmt_lock = RW_LOCK_UNLOCKED;
-+
-+/* ********************************** */
-+
-+/* Forward */
-+static struct proto_ops ring_ops;
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,11))
-+static struct proto ring_proto;
-+#endif
-+
-+static int skb_ring_handler(struct sk_buff *skb, u_char recv_packet,
-+			    u_char real_skb);
-+static int buffer_ring_handler(struct net_device *dev, char *data, int len);
-+static int remove_from_cluster(struct sock *sock, struct ring_opt *pfr);
-+
-+/* Extern */
-+
-+/* ********************************** */
-+
-+/* Defaults */
-+static u_int bucket_len = 128, num_slots = 4096, sample_rate = 1,
-+  transparent_mode = 0, enable_tx_capture = 0;
-+
-+MODULE_PARM(bucket_len, "i");
-+MODULE_PARM_DESC(bucket_len, "Number of ring buckets");
-+MODULE_PARM(num_slots,  "i");
-+MODULE_PARM_DESC(num_slots,  "Number of ring slots");
-+MODULE_PARM(sample_rate, "i");
-+MODULE_PARM_DESC(sample_rate, "Ring packet sample rate");
-+MODULE_PARM(transparent_mode, "i");
-+MODULE_PARM_DESC(transparent_mode,
-+		 "Set to 1 to set transparent mode "
-+		 "(slower but backwards compatible)");
-+MODULE_PARM(enable_tx_capture, "i");
-+MODULE_PARM_DESC(enable_tx_capture, "Set to 1 to capture outgoing packets");
-+
-+/* ********************************** */
-+
-+#define MIN_QUEUED_PKTS      64
-+#define MAX_QUEUE_LOOPS      64
-+
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#define ring_sk_datatype(__sk) ((struct ring_opt *)__sk)
-+#define ring_sk(__sk) ((__sk)->sk_protinfo)
-+#else
-+#define ring_sk_datatype(a) (a)
-+#define ring_sk(__sk) ((__sk)->protinfo.pf_ring)
-+#endif
-+
-+#define _rdtsc() ({ uint64_t x; asm volatile("rdtsc" : "=A" (x)); x; })
-+
-+/*
-+  int dev_queue_xmit(struct sk_buff *skb)
-+  skb->dev;
-+  struct net_device *dev_get_by_name(const char *name)
-+*/
-+
-+/* ********************************** */
-+
-+static void ring_sock_destruct(struct sock *sk) {
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+  skb_queue_purge(&sk->sk_receive_queue);
-+
-+  if (!sock_flag(sk, SOCK_DEAD)) {
-+#if defined(RING_DEBUG)
-+    printk("Attempt to release alive ring socket: %p\n", sk);
-+#endif
-+    return;
-+  }
-+
-+  BUG_TRAP(!atomic_read(&sk->sk_rmem_alloc));
-+  BUG_TRAP(!atomic_read(&sk->sk_wmem_alloc));
-+#else
-+
-+  BUG_TRAP(atomic_read(&sk->rmem_alloc)==0);
-+  BUG_TRAP(atomic_read(&sk->wmem_alloc)==0);
-+
-+  if (!sk->dead) {
-+#if defined(RING_DEBUG)
-+    printk("Attempt to release alive ring socket: %p\n", sk);
-+#endif
-+    return;
-+  }
-+#endif
-+
-+  kfree(ring_sk(sk));
-+
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-+  MOD_DEC_USE_COUNT;
-+#endif
-+}
-+
-+/* ********************************** */
-+/*
-+ * ring_insert()
-+ *
-+ * store the sk in a new element and add it
-+ * to the head of the list.
-+ */
-+static inline void ring_insert(struct sock *sk) {
-+  struct ring_element *next;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_insert()\n");
-+#endif
-+
-+  next = kmalloc(sizeof(struct ring_element), GFP_ATOMIC);
-+  if(next != NULL) {
-+    next->sk = sk;
-+    write_lock_irq(&ring_mgmt_lock);
-+    list_add(&next->list, &ring_table);
-+    write_unlock_irq(&ring_mgmt_lock);
-+  } else {
-+    if (net_ratelimit())
-+      printk("RING: could not kmalloc slot!!\n");
-+  }
-+}
-+
-+/* ********************************** */
-+/*
-+ * ring_remove()
-+ *
-+ * For each of the elements in the list:
-+ *  - check if this is the element we want to delete
-+ *  - if it is, remove it from the list, and free it.
-+ *
-+ * stop when we find the one we're looking for (break),
-+ * or when we reach the end of the list.
-+ */
-+static inline void ring_remove(struct sock *sk) {
-+  struct list_head *ptr;
-+  struct ring_element *entry;
-+
-+
-+  for(ptr = ring_table.next; ptr != &ring_table; ptr = ptr->next) {
-+    entry = list_entry(ptr, struct ring_element, list);
-+
-+    if(entry->sk == sk) {
-+      write_lock_irq(&ring_mgmt_lock);
-+      list_del(ptr);
-+      kfree(ptr);
-+      write_unlock_irq(&ring_mgmt_lock);
-+      break;
-+    }
-+  }
-+
-+}
-+
-+/* ********************************** */
-+
-+static u_int32_t num_queued_pkts(struct ring_opt *pfr) {
-+
-+  if(pfr->ring_slots != NULL) {
-+
-+    u_int32_t tot_insert = pfr->slots_info->insert_idx,
-+#if defined(RING_DEBUG)
-+      tot_read = pfr->slots_info->tot_read, tot_pkts;
-+#else
-+    tot_read = pfr->slots_info->tot_read;
-+#endif
-+
-+    if(tot_insert >= tot_read) {
-+#if defined(RING_DEBUG)
-+      tot_pkts = tot_insert-tot_read;
-+#endif
-+      return(tot_insert-tot_read);
-+    } else {
-+#if defined(RING_DEBUG)
-+      tot_pkts = ((u_int32_t)-1)+tot_insert-tot_read;
-+#endif
-+      return(((u_int32_t)-1)+tot_insert-tot_read);
-+    }
-+
-+#if defined(RING_DEBUG)
-+    printk("-> num_queued_pkts=%d [tot_insert=%d][tot_read=%d]\n",
-+	   tot_pkts, tot_insert, tot_read);
-+#endif
-+
-+  } else
-+    return(0);
-+}
-+
-+/* ********************************** */
-+
-+static inline FlowSlot* get_insert_slot(struct ring_opt *pfr) {
-+#if defined(RING_DEBUG)
-+  printk("get_insert_slot(%d)\n", pfr->slots_info->insert_idx);
-+#endif
-+
-+  if(pfr->ring_slots != NULL) {
-+    FlowSlot *slot = (FlowSlot*)&(pfr->ring_slots[pfr->slots_info->insert_idx
-+						  *pfr->slots_info->slot_len]);
-+    return(slot);
-+  } else
-+    return(NULL);
-+}
-+
-+/* ********************************** */
-+
-+static inline FlowSlot* get_remove_slot(struct ring_opt *pfr) {
-+#if defined(RING_DEBUG)
-+  printk("get_remove_slot(%d)\n", pfr->slots_info->remove_idx);
-+#endif
-+
-+  if(pfr->ring_slots != NULL)
-+    return((FlowSlot*)&(pfr->ring_slots[pfr->slots_info->remove_idx*
-+					pfr->slots_info->slot_len]));
-+  else
-+    return(NULL);
-+}
-+
-+/* ********************************** */
-+
-+static void add_skb_to_ring(struct sk_buff *skb,
-+			    struct ring_opt *pfr,
-+			    u_char recv_packet,
-+			    u_char real_skb /* 1=skb 0=faked skb */) {
-+  FlowSlot *theSlot;
-+  int idx, displ;
-+
-+  if(recv_packet) {
-+    /* Hack for identifying a packet received by the e1000 */
-+    if(real_skb) {
-+      displ = SKB_DISPLACEMENT;
-+    } else
-+      displ = 0; /* Received by the e1000 wrapper */
-+  } else
-+    displ = 0;
-+
-+  write_lock(&pfr->ring_index_lock);
-+  pfr->slots_info->tot_pkts++;
-+  write_unlock(&pfr->ring_index_lock);
-+
-+  /* BPF Filtering (from af_packet.c) */
-+  if(pfr->bpfFilter != NULL) {
-+    unsigned res = 1, len;
-+
-+    len = skb->len-skb->data_len;
-+
-+    write_lock(&pfr->ring_index_lock);
-+    skb->data -= displ;
-+    res = sk_run_filter(skb, pfr->bpfFilter->insns, pfr->bpfFilter->len);
-+    skb->data += displ;
-+    write_unlock(&pfr->ring_index_lock);
-+
-+    if(res == 0) {
-+      /* Filter failed */
-+
-+#if defined(RING_DEBUG)
-+      printk("add_skb_to_ring(skb): Filter failed [len=%d][tot=%llu]"
-+	     "[insertIdx=%d][pkt_type=%d][cloned=%d]\n",
-+	     (int)skb->len, pfr->slots_info->tot_pkts,
-+	     pfr->slots_info->insert_idx,
-+	     skb->pkt_type, skb->cloned);
-+#endif
-+
-+      return;
-+    }
-+  }
-+
-+  /* ************************** */
-+
-+  if(pfr->sample_rate > 1) {
-+    if(pfr->pktToSample == 0) {
-+      write_lock(&pfr->ring_index_lock);
-+      pfr->pktToSample = pfr->sample_rate;
-+      write_unlock(&pfr->ring_index_lock);
-+    } else {
-+      write_lock(&pfr->ring_index_lock);
-+      pfr->pktToSample--;
-+      write_unlock(&pfr->ring_index_lock);
-+
-+#if defined(RING_DEBUG)
-+      printk("add_skb_to_ring(skb): sampled packet [len=%d]"
-+	     "[tot=%llu][insertIdx=%d][pkt_type=%d][cloned=%d]\n",
-+	     (int)skb->len, pfr->slots_info->tot_pkts,
-+	     pfr->slots_info->insert_idx,
-+	     skb->pkt_type, skb->cloned);
-+#endif
-+      return;
-+    }
-+  }
-+
-+  /* ************************************* */
-+
-+  if((pfr->reflector_dev != NULL)
-+     && (!netif_queue_stopped(pfr->reflector_dev))) {
-+    int cpu = smp_processor_id();
-+
-+    /* increase reference counter so that this skb is not freed */
-+    atomic_inc(&skb->users);
-+
-+    skb->data -= displ;
-+
-+    /* send it */
-+    if (pfr->reflector_dev->xmit_lock_owner != cpu) {
-+      spin_lock_bh(&pfr->reflector_dev->xmit_lock);
-+      pfr->reflector_dev->xmit_lock_owner = cpu;
-+      spin_unlock_bh(&pfr->reflector_dev->xmit_lock);
-+
-+      if (pfr->reflector_dev->hard_start_xmit(skb,
-+					      pfr->reflector_dev) == 0) {
-+        spin_lock_bh(&pfr->reflector_dev->xmit_lock);
-+	pfr->reflector_dev->xmit_lock_owner = -1;
-+	skb->data += displ;
-+	spin_unlock_bh(&pfr->reflector_dev->xmit_lock);
-+#if defined(RING_DEBUG)
-+	printk("++ hard_start_xmit succeeded\n");
-+#endif
-+	return; /* OK */
-+      }
-+
-+      spin_lock_bh(&pfr->reflector_dev->xmit_lock);
-+      pfr->reflector_dev->xmit_lock_owner = -1;
-+      spin_unlock_bh(&pfr->reflector_dev->xmit_lock);
-+    }
-+
-+#if defined(RING_DEBUG)
-+    printk("++ hard_start_xmit failed\n");
-+#endif
-+    skb->data += displ;
-+    return; /* -ENETDOWN */
-+  }
-+
-+  /* ************************************* */
-+
-+#if defined(RING_DEBUG)
-+  printk("add_skb_to_ring(skb) [len=%d][tot=%llu][insertIdx=%d]"
-+	 "[pkt_type=%d][cloned=%d]\n",
-+	 (int)skb->len, pfr->slots_info->tot_pkts,
-+	 pfr->slots_info->insert_idx,
-+	 skb->pkt_type, skb->cloned);
-+#endif
-+
-+  idx = pfr->slots_info->insert_idx;
-+  theSlot = get_insert_slot(pfr);
-+
-+  if((theSlot != NULL) && (theSlot->slot_state == 0)) {
-+    struct pcap_pkthdr *hdr;
-+    unsigned int bucketSpace;
-+    char *bucket;
-+
-+    /* Update Index */
-+    idx++;
-+
-+    if(idx == pfr->slots_info->tot_slots) {
-+      write_lock(&pfr->ring_index_lock);
-+      pfr->slots_info->insert_idx = 0;
-+      write_unlock(&pfr->ring_index_lock);
-+    } else {
-+      write_lock(&pfr->ring_index_lock);
-+      pfr->slots_info->insert_idx = idx;
-+      write_unlock(&pfr->ring_index_lock);
-+    }
-+
-+    bucketSpace = pfr->slots_info->slot_len
-+#ifdef RING_MAGIC
-+      - sizeof(u_char)
-+#endif
-+      - sizeof(u_char)  /* flowSlot.slot_state */
-+      - sizeof(struct pcap_pkthdr)
-+      - 1 /* 10 */ /* safe boundary */;
-+
-+    bucket = &theSlot->bucket;
-+    hdr = (struct pcap_pkthdr*)bucket;
-+
-+    if(skb->stamp.tv_sec == 0) do_gettimeofday(&skb->stamp);
-+
-+    hdr->ts.tv_sec = skb->stamp.tv_sec, hdr->ts.tv_usec = skb->stamp.tv_usec;
-+    hdr->caplen    = skb->len+displ;
-+
-+    if(hdr->caplen > bucketSpace)
-+      hdr->caplen = bucketSpace;
-+
-+    hdr->len = skb->len+displ;
-+    memcpy(&bucket[sizeof(struct pcap_pkthdr)],
-+	   skb->data-displ, hdr->caplen);
-+
-+#if defined(RING_DEBUG)
-+    {
-+      static unsigned int lastLoss = 0;
-+
-+      if(pfr->slots_info->tot_lost
-+	 && (lastLoss != pfr->slots_info->tot_lost)) {
-+	printk("add_skb_to_ring(%d): [bucketSpace=%d]"
-+	       "[hdr.caplen=%d][skb->len=%d]"
-+	       "[pcap_pkthdr=%d][removeIdx=%d]"
-+	       "[loss=%lu][page=%u][slot=%u]\n",
-+	       idx-1, bucketSpace, hdr->caplen, skb->len,
-+	       sizeof(struct pcap_pkthdr),
-+	       pfr->slots_info->remove_idx,
-+	       (long unsigned int)pfr->slots_info->tot_lost,
-+	       pfr->insert_page_id, pfr->insert_slot_id);
-+
-+	lastLoss = pfr->slots_info->tot_lost;
-+      }
-+    }
-+#endif
-+
-+    write_lock(&pfr->ring_index_lock);
-+    pfr->slots_info->tot_insert++;
-+    theSlot->slot_state = 1;
-+    write_unlock(&pfr->ring_index_lock);
-+  } else {
-+    write_lock(&pfr->ring_index_lock);
-+    pfr->slots_info->tot_lost++;
-+    write_unlock(&pfr->ring_index_lock);
-+
-+#if defined(RING_DEBUG)
-+    printk("add_skb_to_ring(skb): packet lost [loss=%lu]"
-+	   "[removeIdx=%u][insertIdx=%u]\n",
-+	   (long unsigned int)pfr->slots_info->tot_lost,
-+	   pfr->slots_info->remove_idx, pfr->slots_info->insert_idx);
-+#endif
-+  }
-+
-+  /* wakeup in case of poll() */
-+  if(waitqueue_active(&pfr->ring_slots_waitqueue))
-+    wake_up_interruptible(&pfr->ring_slots_waitqueue);
-+}
-+
-+/* ********************************** */
-+
-+static u_int hash_skb(struct ring_cluster *cluster_ptr,
-+		      struct sk_buff *skb, u_char recv_packet) {
-+  u_int idx;
-+  int displ;
-+  struct iphdr *ip;
-+
-+  if(cluster_ptr->hashing_mode == cluster_round_robin) {
-+    idx = cluster_ptr->hashing_id++;
-+  } else {
-+    /* Per-flow clustering */
-+    if(skb->len > sizeof(struct iphdr)+sizeof(struct tcphdr)) {
-+      if(recv_packet)
-+	displ = 0;
-+      else
-+	displ = SKB_DISPLACEMENT;
-+
-+      /*
-+	skb->data+displ
-+
-+	Always points to to the IP part of the packet
-+      */
-+
-+      ip = (struct iphdr*)(skb->data+displ);
-+
-+      idx = ip->saddr+ip->daddr+ip->protocol;
-+
-+      if(ip->protocol == IPPROTO_TCP) {
-+	struct tcphdr *tcp = (struct tcphdr*)(skb->data+displ
-+					      +sizeof(struct iphdr));
-+	idx += tcp->source+tcp->dest;
-+      } else if(ip->protocol == IPPROTO_UDP) {
-+	struct udphdr *udp = (struct udphdr*)(skb->data+displ
-+					      +sizeof(struct iphdr));
-+	idx += udp->source+udp->dest;
-+      }
-+    } else
-+      idx = skb->len;
-+  }
-+
-+  return(idx % cluster_ptr->num_cluster_elements);
-+}
-+
-+/* ********************************** */
-+
-+static int skb_ring_handler(struct sk_buff *skb,
-+			    u_char recv_packet,
-+			    u_char real_skb /* 1=skb 0=faked skb */) {
-+  struct sock *skElement;
-+  int rc = 0;
-+  struct list_head *ptr;
-+  struct ring_cluster *cluster_ptr;
-+
-+#ifdef PROFILING
-+  uint64_t rdt = _rdtsc(), rdt1, rdt2;
-+#endif
-+
-+  if((!skb) /* Invalid skb */
-+     || ((!enable_tx_capture) && (!recv_packet))) {
-+    /*
-+      An outgoing packet is about to be sent out
-+      but we decided not to handle transmitted
-+      packets.
-+    */
-+    return(0);
-+  }
-+
-+#if defined(RING_DEBUG)
-+  if(0) {
-+    printk("skb_ring_handler() [len=%d][dev=%s]\n", skb->len,
-+	   skb->dev->name == NULL ? "<NULL>" : skb->dev->name);
-+  }
-+#endif
-+
-+#ifdef PROFILING
-+  rdt1 = _rdtsc();
-+#endif
-+
-+  /* [1] Check unclustered sockets */
-+  for (ptr = ring_table.next; ptr != &ring_table; ptr = ptr->next) {
-+    struct ring_opt *pfr;
-+    struct ring_element *entry;
-+
-+    entry = list_entry(ptr, struct ring_element, list);
-+
-+    read_lock(&ring_mgmt_lock);
-+    skElement = entry->sk;
-+    pfr = ring_sk(skElement);
-+    read_unlock(&ring_mgmt_lock);
-+
-+    if((pfr != NULL)
-+       && (pfr->cluster_id == 0 /* No cluster */)
-+       && (pfr->ring_slots != NULL)
-+       && (pfr->ring_netdev == skb->dev)) {
-+      /* We've found the ring where the packet can be stored */
-+      read_lock(&ring_mgmt_lock);
-+      add_skb_to_ring(skb, pfr, recv_packet, real_skb);
-+      read_unlock(&ring_mgmt_lock);
-+
-+      rc = 1; /* Ring found: we've done our job */
-+    }
-+  }
-+
-+  /* [2] Check socket clusters */
-+  cluster_ptr = ring_cluster_list;
-+
-+  while(cluster_ptr != NULL) {
-+    struct ring_opt *pfr;
-+
-+    if(cluster_ptr->num_cluster_elements > 0) {
-+      u_int skb_hash = hash_skb(cluster_ptr, skb, recv_packet);
-+
-+      read_lock(&ring_mgmt_lock);
-+      skElement = cluster_ptr->sk[skb_hash];
-+      read_unlock(&ring_mgmt_lock);
-+
-+      if(skElement != NULL) {
-+	pfr = ring_sk(skElement);
-+
-+	if((pfr != NULL)
-+	   && (pfr->ring_slots != NULL)
-+	   && (pfr->ring_netdev == skb->dev)) {
-+	  /* We've found the ring where the packet can be stored */
-+          read_lock(&ring_mgmt_lock);
-+	  add_skb_to_ring(skb, pfr, recv_packet, real_skb);
-+          read_unlock(&ring_mgmt_lock);
-+
-+	  rc = 1; /* Ring found: we've done our job */
-+	}
-+      }
-+    }
-+
-+    cluster_ptr = cluster_ptr->next;
-+  }
-+
-+#ifdef PROFILING
-+  rdt1 = _rdtsc()-rdt1;
-+#endif
-+
-+#ifdef PROFILING
-+  rdt2 = _rdtsc();
-+#endif
-+
-+  if(transparent_mode) rc = 0;
-+
-+  if((rc != 0) && real_skb)
-+    dev_kfree_skb(skb); /* Free the skb */
-+
-+#ifdef PROFILING
-+  rdt2 = _rdtsc()-rdt2;
-+  rdt = _rdtsc()-rdt;
-+
-+#if defined(RING_DEBUG)
-+  printk("# cycles: %d [lock costed %d %d%%][free costed %d %d%%]\n",
-+	 (int)rdt, rdt-rdt1,
-+	 (int)((float)((rdt-rdt1)*100)/(float)rdt),
-+	 rdt2,
-+	 (int)((float)(rdt2*100)/(float)rdt));
-+#endif
-+#endif
-+
-+  return(rc); /*  0 = packet not handled */
-+}
-+
-+/* ********************************** */
-+
-+struct sk_buff skb;
-+
-+static int buffer_ring_handler(struct net_device *dev,
-+			       char *data, int len) {
-+
-+#if defined(RING_DEBUG)
-+  printk("buffer_ring_handler: [dev=%s][len=%d]\n",
-+	 dev->name == NULL ? "<NULL>" : dev->name, len);
-+#endif
-+
-+  skb.dev = dev, skb.len = len, skb.data = data,
-+    skb.data_len = len, skb.stamp.tv_sec = 0; /* Calculate the time */
-+
-+  skb_ring_handler(&skb, 1, 0 /* fake skb */);
-+
-+  return(0);
-+}
-+
-+/* ********************************** */
-+
-+static int ring_create(struct socket *sock, int protocol) {
-+  struct sock *sk;
-+  struct ring_opt *pfr;
-+  int err;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_create()\n");
-+#endif
-+
-+  /* Are you root, superuser or so ? */
-+  if(!capable(CAP_NET_ADMIN))
-+    return -EPERM;
-+
-+  if(sock->type != SOCK_RAW)
-+    return -ESOCKTNOSUPPORT;
-+
-+  if(protocol != htons(ETH_P_ALL))
-+    return -EPROTONOSUPPORT;
-+
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-+  MOD_INC_USE_COUNT;
-+#endif
-+
-+  err = -ENOMEM;
-+
-+  // BD: -- broke this out to keep it more simple and clear as to what the
-+  // options are.
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,11))
-+  sk = sk_alloc(PF_RING, GFP_KERNEL, 1, NULL);
-+#endif
-+#endif
-+
-+  // BD: API changed in 2.6.12, ref:
-+  // http://svn.clkao.org/svnweb/linux/revision/?rev=28201
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,11))
-+  sk = sk_alloc(PF_RING, GFP_ATOMIC, &ring_proto, 1);
-+#endif
-+
-+  if (sk == NULL)
-+    goto out;
-+
-+  sock->ops = &ring_ops;
-+  sock_init_data(sock, sk);
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,11))
-+  sk_set_owner(sk, THIS_MODULE);
-+#endif
-+#endif
-+
-+  err = -ENOMEM;
-+  ring_sk(sk) = ring_sk_datatype(kmalloc(sizeof(*pfr), GFP_KERNEL));
-+
-+  if (!(pfr = ring_sk(sk))) {
-+    sk_free(sk);
-+    goto out;
-+  }
-+  memset(pfr, 0, sizeof(*pfr));
-+  init_waitqueue_head(&pfr->ring_slots_waitqueue);
-+  pfr->ring_index_lock = RW_LOCK_UNLOCKED;
-+  atomic_set(&pfr->num_ring_slots_waiters, 0);
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+  sk->sk_family       = PF_RING;
-+  sk->sk_destruct     = ring_sock_destruct;
-+#else
-+  sk->family          = PF_RING;
-+  sk->destruct        = ring_sock_destruct;
-+  sk->num             = protocol;
-+#endif
-+
-+  ring_insert(sk);
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_create() - created\n");
-+#endif
-+
-+  return(0);
-+ out:
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-+  MOD_DEC_USE_COUNT;
-+#endif
-+  return err;
-+}
-+
-+/* *********************************************** */
-+
-+static int ring_release(struct socket *sock)
-+{
-+  struct sock *sk = sock->sk;
-+  struct ring_opt *pfr = ring_sk(sk);
-+
-+  if(!sk)
-+    return 0;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: called ring_release\n");
-+#endif
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_release entered\n");
-+#endif
-+
-+  ring_remove(sk);
-+
-+  sock_orphan(sk);
-+  sock->sk = NULL;
-+
-+  /* Free the ring buffer */
-+  if(pfr->ring_memory) {
-+    struct page *page, *page_end;
-+
-+    page_end = virt_to_page(pfr->ring_memory + (PAGE_SIZE << pfr->order) - 1);
-+    for(page = virt_to_page(pfr->ring_memory); page <= page_end; page++)
-+      ClearPageReserved(page);
-+
-+    free_pages(pfr->ring_memory, pfr->order);
-+  }
-+
-+  kfree(pfr);
-+  ring_sk(sk) = NULL;
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+  skb_queue_purge(&sk->sk_write_queue);
-+#endif
-+  sock_put(sk);
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_release leaving\n");
-+#endif
-+
-+  return 0;
-+}
-+
-+/* ********************************** */
-+/*
-+ * We create a ring for this socket and bind it to the specified device
-+ */
-+static int packet_ring_bind(struct sock *sk, struct net_device *dev)
-+{
-+  u_int the_slot_len;
-+  u_int32_t tot_mem;
-+  struct ring_opt *pfr = ring_sk(sk);
-+  struct page *page, *page_end;
-+
-+  if(!dev) return(-1);
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: packet_ring_bind(%s) called\n", dev->name);
-+#endif
-+
-+  /* **********************************************
-+
-+  *************************************
-+  *                                   *
-+  *        FlowSlotInfo               *
-+  *                                   *
-+  ************************************* <-+
-+  *        FlowSlot                   *   |
-+  *************************************   |
-+  *        FlowSlot                   *   |
-+  *************************************   +- num_slots
-+  *        FlowSlot                   *   |
-+  *************************************   |
-+  *        FlowSlot                   *   |
-+  ************************************* <-+
-+
-+  ********************************************** */
-+
-+  the_slot_len = sizeof(u_char)    /* flowSlot.slot_state */
-+    + sizeof(u_short) /* flowSlot.slot_len   */
-+    + bucket_len      /* flowSlot.bucket     */;
-+
-+  tot_mem = sizeof(FlowSlotInfo) + num_slots*the_slot_len;
-+
-+  /*
-+    Calculate the value of the order parameter used later.
-+    See http://www.linuxjournal.com/article.php?sid=1133
-+  */
-+  for(pfr->order = 0;(PAGE_SIZE << pfr->order) < tot_mem; pfr->order++)  ;
-+
-+  /*
-+    We now try to allocate the memory as required. If we fail
-+    we try to allocate a smaller amount or memory (hence a
-+    smaller ring).
-+  */
-+  while((pfr->ring_memory = __get_free_pages(GFP_ATOMIC, pfr->order)) == 0)
-+    if(pfr->order-- == 0)
-+      break;
-+
-+  if(pfr->order == 0) {
-+#if defined(RING_DEBUG)
-+    printk("ERROR: not enough memory\n");
-+#endif
-+    return(-1);
-+  } else {
-+#if defined(RING_DEBUG)
-+    printk("RING: succesfully allocated %lu KB [tot_mem=%d][order=%ld]\n",
-+	   PAGE_SIZE >> (10 - pfr->order), tot_mem, pfr->order);
-+#endif
-+  }
-+
-+  tot_mem = PAGE_SIZE << pfr->order;
-+  memset((char*)pfr->ring_memory, 0, tot_mem);
-+
-+  /* Now we need to reserve the pages */
-+  page_end = virt_to_page(pfr->ring_memory + (PAGE_SIZE << pfr->order) - 1);
-+  for(page = virt_to_page(pfr->ring_memory); page <= page_end; page++)
-+    SetPageReserved(page);
-+
-+  pfr->slots_info = (FlowSlotInfo*)pfr->ring_memory;
-+  pfr->ring_slots = (char*)(pfr->ring_memory+sizeof(FlowSlotInfo));
-+
-+  pfr->slots_info->version     = RING_FLOWSLOT_VERSION;
-+  pfr->slots_info->slot_len    = the_slot_len;
-+  pfr->slots_info->tot_slots   = (tot_mem-sizeof(FlowSlotInfo))/the_slot_len;
-+  pfr->slots_info->tot_mem     = tot_mem;
-+  pfr->slots_info->sample_rate = sample_rate;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: allocated %d slots [slot_len=%d][tot_mem=%u]\n",
-+	 pfr->slots_info->tot_slots, pfr->slots_info->slot_len,
-+	 pfr->slots_info->tot_mem);
-+#endif
-+
-+#ifdef RING_MAGIC
-+  {
-+    int i;
-+
-+    for(i=0; i<pfr->slots_info->tot_slots; i++) {
-+      unsigned long idx = i*pfr->slots_info->slot_len;
-+      FlowSlot *slot = (FlowSlot*)&pfr->ring_slots[idx];
-+      slot->magic = RING_MAGIC_VALUE; slot->slot_state = 0;
-+    }
-+  }
-+#endif
-+
-+  pfr->insert_page_id = 1, pfr->insert_slot_id = 0;
-+
-+  /*
-+    IMPORTANT
-+    Leave this statement here as last one. In fact when
-+    the ring_netdev != NULL the socket is ready to be used.
-+  */
-+  pfr->ring_netdev = dev;
-+
-+  return(0);
-+}
-+
-+/* ************************************* */
-+
-+/* Bind to a device */
-+static int ring_bind(struct socket *sock,
-+		     struct sockaddr *sa, int addr_len)
-+{
-+  struct sock *sk=sock->sk;
-+  struct net_device *dev = NULL;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_bind() called\n");
-+#endif
-+
-+  /*
-+   *	Check legality
-+   */
-+  if (addr_len != sizeof(struct sockaddr))
-+    return -EINVAL;
-+  if (sa->sa_family != PF_RING)
-+    return -EINVAL;
-+
-+  /* Safety check: add trailing zero if missing */
-+  sa->sa_data[sizeof(sa->sa_data)-1] = '\0';
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: searching device %s\n", sa->sa_data);
-+#endif
-+
-+  if((dev = __dev_get_by_name(sa->sa_data)) == NULL) {
-+#if defined(RING_DEBUG)
-+    printk("RING: search failed\n");
-+#endif
-+    return(-EINVAL);
-+  } else
-+    return(packet_ring_bind(sk, dev));
-+}
-+
-+/* ************************************* */
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+
-+volatile void* virt_to_kseg(volatile void* address) {
-+  pte_t *pte;
-+  pud_t *pud;
-+  unsigned long addr = (unsigned long)address;
-+		       
-+  pud = pud_offset(pgd_offset_k((unsigned long) address),
-+		   (unsigned long) address);
-+
-+  /*
-+     High-memory support courtesy of
-+     Brad Doctor <bdoctor@ps-ax.com>
-+  */
-+#if defined(CONFIG_X86_PAE) && (!defined(CONFIG_NOHIGHMEM))
-+  pte = pte_offset_map(pmd_offset(pud, addr), addr);
-+#else
-+  pte = pmd_offset_map(pud, addr);
-+#endif
-+
-+  return((volatile void*)pte_page(*pte));
-+}
-+
-+#else /* 2.4 */
-+
-+/* http://www.scs.ch/~frey/linux/memorymap.html */
-+volatile void *virt_to_kseg(volatile void *address)
-+{
-+  pgd_t *pgd; pmd_t *pmd; pte_t *ptep, pte;
-+  unsigned long va, ret = 0UL;
-+
-+  va=VMALLOC_VMADDR((unsigned long)address);
-+
-+  /* get the page directory. Use the kernel memory map. */
-+  pgd = pgd_offset_k(va);
-+
-+  /* check whether we found an entry */
-+  if (!pgd_none(*pgd))
-+    {
-+      /* get the page middle directory */
-+      pmd = pmd_offset(pgd, va);
-+      /* check whether we found an entry */
-+      if (!pmd_none(*pmd))
-+	{
-+	  /* get a pointer to the page table entry */
-+	  ptep = pte_offset(pmd, va);
-+	  pte = *ptep;
-+	  /* check for a valid page */
-+	  if (pte_present(pte))
-+	    {
-+	      /* get the address the page is refering to */
-+	      ret = (unsigned long)page_address(pte_page(pte));
-+	      /* add the offset within the page to the page address */
-+	      ret |= (va & (PAGE_SIZE -1));
-+	    }
-+	}
-+    }
-+  return((volatile void *)ret);
-+}
-+#endif
-+
-+/* ************************************* */
-+
-+static int ring_mmap(struct file *file,
-+		     struct socket *sock,
-+		     struct vm_area_struct *vma)
-+{
-+  struct sock *sk = sock->sk;
-+  struct ring_opt *pfr = ring_sk(sk);
-+  unsigned long size, start;
-+  u_int pagesToMap;
-+  char *ptr;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_mmap() called\n");
-+#endif
-+
-+  if(pfr->ring_memory == 0) {
-+#if defined(RING_DEBUG)
-+    printk("RING: ring_mmap() failed: mapping area to an unbound socket\n");
-+#endif
-+    return -EINVAL;
-+  }
-+
-+  size = (unsigned long)(vma->vm_end-vma->vm_start);
-+
-+  if(size % PAGE_SIZE) {
-+#if defined(RING_DEBUG)
-+    printk("RING: ring_mmap() failed: len is not multiple of PAGE_SIZE\n");
-+#endif
-+    return(-EINVAL);
-+  }
-+
-+  /* if userspace tries to mmap beyond end of our buffer, fail */
-+  if(size > pfr->slots_info->tot_mem) {
-+#if defined(RING_DEBUG)
-+    printk("proc_mmap() failed: area too large [%ld > %d]\n", size, pfr->slots_info->tot_mem);
-+#endif
-+    return(-EINVAL);
-+  }
-+
-+  pagesToMap = size/PAGE_SIZE;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_mmap() called. %d pages to map\n", pagesToMap);
-+#endif
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: mmap [slot_len=%d][tot_slots=%d] for ring on device %s\n",
-+	 pfr->slots_info->slot_len, pfr->slots_info->tot_slots,
-+	 pfr->ring_netdev->name);
-+#endif
-+
-+  /* we do not want to have this area swapped out, lock it */
-+  vma->vm_flags |= VM_LOCKED;
-+  start = vma->vm_start;
-+
-+  /* Ring slots start from page 1 (page 0 is reserved for FlowSlotInfo) */
-+  ptr = (char*)(start+PAGE_SIZE);
-+
-+  if(remap_page_range(
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+		      vma,
-+#endif
-+		      start,
-+		      __pa(pfr->ring_memory),
-+		      PAGE_SIZE*pagesToMap, vma->vm_page_prot)) {
-+#if defined(RING_DEBUG)
-+    printk("remap_page_range() failed\n");
-+#endif
-+    return(-EAGAIN);
-+  }
-+
-+#if defined(RING_DEBUG)
-+  printk("proc_mmap(pagesToMap=%d): success.\n", pagesToMap);
-+#endif
-+
-+  return 0;
-+}
-+
-+/* ************************************* */
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+static int ring_recvmsg(struct kiocb *iocb, struct socket *sock,
-+			struct msghdr *msg, size_t len, int flags)
-+#else
-+  static int ring_recvmsg(struct socket *sock, struct msghdr *msg, int len,
-+			  int flags, struct scm_cookie *scm)
-+#endif
-+{
-+  FlowSlot* slot;
-+  struct ring_opt *pfr = ring_sk(sock->sk);
-+  u_int32_t queued_pkts, num_loops = 0;
-+
-+#if defined(RING_DEBUG)
-+  printk("ring_recvmsg called\n");
-+#endif
-+
-+  slot = get_remove_slot(pfr);
-+
-+  while((queued_pkts = num_queued_pkts(pfr)) < MIN_QUEUED_PKTS) {
-+    wait_event_interruptible(pfr->ring_slots_waitqueue, 1);
-+
-+#if defined(RING_DEBUG)
-+    printk("-> ring_recvmsg returning %d [queued_pkts=%d][num_loops=%d]\n",
-+	   slot->slot_state, queued_pkts, num_loops);
-+#endif
-+
-+    if(queued_pkts > 0) {
-+      if(num_loops++ > MAX_QUEUE_LOOPS)
-+	break;
-+    }
-+  }
-+
-+#if defined(RING_DEBUG)
-+  if(slot != NULL)
-+    printk("ring_recvmsg is returning [queued_pkts=%d][num_loops=%d]\n",
-+	   queued_pkts, num_loops);
-+#endif
-+
-+  return(queued_pkts);
-+}
-+
-+/* ************************************* */
-+
-+unsigned int ring_poll(struct file * file,
-+		       struct socket *sock, poll_table *wait)
-+{
-+  FlowSlot* slot;
-+  struct ring_opt *pfr = ring_sk(sock->sk);
-+
-+#if defined(RING_DEBUG)
-+  printk("poll called\n");
-+#endif
-+
-+  slot = get_remove_slot(pfr);
-+
-+  if((slot != NULL) && (slot->slot_state == 0))
-+    poll_wait(file, &pfr->ring_slots_waitqueue, wait);
-+
-+#if defined(RING_DEBUG)
-+  printk("poll returning %d\n", slot->slot_state);
-+#endif
-+
-+  if((slot != NULL) && (slot->slot_state == 1))
-+    return(POLLIN | POLLRDNORM);
-+  else
-+    return(0);
-+}
-+
-+/* ************************************* */
-+
-+int add_to_cluster_list(struct ring_cluster *el,
-+			struct sock *sock) {
-+
-+  if(el->num_cluster_elements == CLUSTER_LEN)
-+    return(-1); /* Cluster full */
-+
-+  ring_sk_datatype(ring_sk(sock))->cluster_id = el->cluster_id;
-+  el->sk[el->num_cluster_elements] = sock;
-+  el->num_cluster_elements++;
-+  return(0);
-+}
-+
-+/* ************************************* */
-+
-+int remove_from_cluster_list(struct ring_cluster *el,
-+			     struct sock *sock) {
-+  int i, j;
-+
-+  for(i=0; i<CLUSTER_LEN; i++)
-+    if(el->sk[i] == sock) {
-+      el->num_cluster_elements--;
-+
-+      if(el->num_cluster_elements > 0) {
-+	/* The cluster contains other elements */
-+	for(j=i; j<CLUSTER_LEN-1; j++)
-+	  el->sk[j] = el->sk[j+1];
-+
-+	el->sk[CLUSTER_LEN-1] = NULL;
-+      } else {
-+	/* Empty cluster */
-+	memset(el->sk, 0, sizeof(el->sk));
-+      }
-+
-+      return(0);
-+    }
-+
-+  return(-1); /* Not found */
-+}
-+
-+/* ************************************* */
-+
-+static int remove_from_cluster(struct sock *sock,
-+			       struct ring_opt *pfr)
-+{
-+  struct ring_cluster *el;
-+
-+#if defined(RING_DEBUG)
-+  printk("--> remove_from_cluster(%d)\n", pfr->cluster_id);
-+#endif
-+
-+  if(pfr->cluster_id == 0 /* 0 = No Cluster */)
-+    return(0); /* Noting to do */
-+
-+  el = ring_cluster_list;
-+
-+  while(el != NULL) {
-+    if(el->cluster_id == pfr->cluster_id) {
-+      return(remove_from_cluster_list(el, sock));
-+    } else
-+      el = el->next;
-+  }
-+
-+  return(-EINVAL); /* Not found */
-+}
-+
-+/* ************************************* */
-+
-+static int add_to_cluster(struct sock *sock,
-+			  struct ring_opt *pfr,
-+			  u_short cluster_id)
-+{
-+  struct ring_cluster *el;
-+
-+#ifndef RING_DEBUG
-+  printk("--> add_to_cluster(%d)\n", cluster_id);
-+#endif
-+
-+  if(cluster_id == 0 /* 0 = No Cluster */) return(-EINVAL);
-+
-+  if(pfr->cluster_id != 0)
-+    remove_from_cluster(sock, pfr);
-+
-+  el = ring_cluster_list;
-+
-+  while(el != NULL) {
-+    if(el->cluster_id == cluster_id) {
-+      return(add_to_cluster_list(el, sock));
-+    } else
-+      el = el->next;
-+  }
-+
-+  /* There's no existing cluster. We need to create one */
-+  if((el = kmalloc(sizeof(struct ring_cluster), GFP_KERNEL)) == NULL)
-+    return(-ENOMEM);
-+
-+  el->cluster_id = cluster_id;
-+  el->num_cluster_elements = 1;
-+  el->hashing_mode = cluster_per_flow; /* Default */
-+  el->hashing_id   = 0;
-+
-+  memset(el->sk, 0, sizeof(el->sk));
-+  el->sk[0] = sock;
-+  el->next = ring_cluster_list;
-+  ring_cluster_list = el;
-+  pfr->cluster_id = cluster_id;
-+
-+  return(0); /* 0 = OK */
-+}
-+
-+/* ************************************* */
-+
-+/* Code taken/inspired from core/sock.c */
-+static int ring_setsockopt(struct socket *sock,
-+			   int level, int optname,
-+			   char *optval, int optlen)
-+{
-+  struct ring_opt *pfr = ring_sk(sock->sk);
-+  int val, found, ret = 0;
-+  u_int cluster_id;
-+  char devName[8];
-+
-+  if((optlen<sizeof(int)) || (pfr == NULL))
-+    return(-EINVAL);
-+
-+  if (get_user(val, (int *)optval))
-+    return -EFAULT;
-+
-+  found = 1;
-+
-+  switch(optname)
-+    {
-+    case SO_ATTACH_FILTER:
-+      ret = -EINVAL;
-+      if (optlen == sizeof(struct sock_fprog)) {
-+	unsigned int fsize;
-+	struct sock_fprog fprog;
-+	struct sk_filter *filter;
-+
-+	ret = -EFAULT;
-+
-+	/*
-+	  NOTE
-+
-+	  Do not call copy_from_user within a held
-+	  splinlock (e.g. ring_mgmt_lock) as this caused
-+	  problems when certain debugging was enabled under
-+	  2.6.5 -- including hard lockups of the machine.
-+	*/
-+	if(copy_from_user(&fprog, optval, sizeof(fprog)))
-+	  break;
-+
-+	fsize = sizeof(struct sock_filter) * fprog.len;
-+	filter = kmalloc(fsize, GFP_KERNEL);
-+
-+	if(filter == NULL) {
-+	  ret = -ENOMEM;
-+	  break;
-+	}
-+
-+	if(copy_from_user(filter->insns, fprog.filter, fsize))
-+	  break;
-+
-+	filter->len = fprog.len;
-+
-+	if(sk_chk_filter(filter->insns, filter->len) != 0) {
-+	  /* Bad filter specified */
-+	  kfree(filter);
-+	  pfr->bpfFilter = NULL;
-+	  break;
-+	}
-+
-+	/* get the lock, set the filter, release the lock */
-+	write_lock(&ring_mgmt_lock);
-+	pfr->bpfFilter = filter;
-+	write_unlock(&ring_mgmt_lock);
-+      }
-+      ret = 0;
-+      break;
-+
-+    case SO_DETACH_FILTER:
-+      write_lock(&ring_mgmt_lock);
-+      found = 1;
-+      if(pfr->bpfFilter != NULL) {
-+	kfree(pfr->bpfFilter);
-+	pfr->bpfFilter = NULL;
-+	write_unlock(&ring_mgmt_lock);
-+	break;
-+      }
-+      ret = -ENONET;
-+      break;
-+
-+    case SO_ADD_TO_CLUSTER:
-+      if (optlen!=sizeof(val))
-+	return -EINVAL;
-+
-+      if (copy_from_user(&cluster_id, optval, sizeof(cluster_id)))
-+	return -EFAULT;
-+
-+      write_lock(&ring_mgmt_lock);
-+      ret = add_to_cluster(sock->sk, pfr, cluster_id);
-+      write_unlock(&ring_mgmt_lock);
-+      break;
-+
-+    case SO_REMOVE_FROM_CLUSTER:
-+      write_lock(&ring_mgmt_lock);
-+      ret = remove_from_cluster(sock->sk, pfr);
-+      write_unlock(&ring_mgmt_lock);
-+      break;
-+
-+    case SO_SET_REFLECTOR:
-+      if(optlen >= (sizeof(devName)-1))
-+	return -EINVAL;
-+
-+      if(optlen > 0) {
-+	if(copy_from_user(devName, optval, optlen))
-+	  return -EFAULT;
-+      }
-+
-+      devName[optlen] = '\0';
-+
-+#if defined(RING_DEBUG)
-+      printk("+++ SO_SET_REFLECTOR(%s)\n", devName);
-+#endif
-+
-+      write_lock(&ring_mgmt_lock);
-+      pfr->reflector_dev = dev_get_by_name(devName);
-+      write_unlock(&ring_mgmt_lock);
-+
-+#if defined(RING_DEBUG)
-+      if(pfr->reflector_dev != NULL)
-+	printk("SO_SET_REFLECTOR(%s): succeded\n", devName);
-+      else
-+	printk("SO_SET_REFLECTOR(%s): device unknown\n", devName);
-+#endif
-+      break;
-+
-+    default:
-+      found = 0;
-+      break;
-+    }
-+
-+  if(found)
-+    return(ret);
-+  else
-+    return(sock_setsockopt(sock, level, optname, optval, optlen));
-+}
-+
-+/* ************************************* */
-+
-+static int ring_ioctl(struct socket *sock,
-+		      unsigned int cmd, unsigned long arg)
-+{
-+  switch(cmd)
-+    {
-+    case SIOCGIFFLAGS:
-+    case SIOCSIFFLAGS:
-+    case SIOCGIFCONF:
-+    case SIOCGIFMETRIC:
-+    case SIOCSIFMETRIC:
-+    case SIOCGIFMEM:
-+    case SIOCSIFMEM:
-+    case SIOCGIFMTU:
-+    case SIOCSIFMTU:
-+    case SIOCSIFLINK:
-+    case SIOCGIFHWADDR:
-+    case SIOCSIFHWADDR:
-+    case SIOCSIFMAP:
-+    case SIOCGIFMAP:
-+    case SIOCSIFSLAVE:
-+    case SIOCGIFSLAVE:
-+    case SIOCGIFINDEX:
-+    case SIOCGIFNAME:
-+    case SIOCGIFCOUNT:
-+    case SIOCSIFHWBROADCAST:
-+      return(dev_ioctl(cmd,(void *) arg));
-+
-+    default:
-+      return -EOPNOTSUPP;
-+    }
-+
-+  return 0;
-+}
-+
-+/* ************************************* */
-+
-+static struct proto_ops ring_ops = {
-+  .family	=	PF_RING,
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+  .owner	=	THIS_MODULE,
-+#endif
-+
-+  /* Operations that make no sense on ring sockets. */
-+  .connect	=	sock_no_connect,
-+  .socketpair	=	sock_no_socketpair,
-+  .accept	=	sock_no_accept,
-+  .getname	=	sock_no_getname,
-+  .listen	=	sock_no_listen,
-+  .shutdown	=	sock_no_shutdown,
-+  .sendpage	=	sock_no_sendpage,
-+  .sendmsg	=	sock_no_sendmsg,
-+  .getsockopt	=	sock_no_getsockopt,
-+
-+  /* Now the operations that really occur. */
-+  .release	=	ring_release,
-+  .bind		=	ring_bind,
-+  .mmap		=	ring_mmap,
-+  .poll		=	ring_poll,
-+  .setsockopt	=	ring_setsockopt,
-+  .ioctl	=	ring_ioctl,
-+  .recvmsg	=	ring_recvmsg,
-+};
-+
-+/* ************************************ */
-+
-+static struct net_proto_family ring_family_ops = {
-+  .family	=	PF_RING,
-+  .create	=	ring_create,
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+  .owner	=	THIS_MODULE,
-+#endif
-+};
-+
-+// BD: API changed in 2.6.12, ref:
-+// http://svn.clkao.org/svnweb/linux/revision/?rev=28201
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,11))
-+static struct proto ring_proto = {
-+  .name		=	"PF_RING",
-+  .owner	=	THIS_MODULE,
-+  .obj_size	=	sizeof(struct sock),
-+};
-+#endif
-+
-+/* ************************************ */
-+
-+static void __exit ring_exit(void)
-+{
-+  struct list_head *ptr;
-+  struct ring_element *entry;
-+
-+  for(ptr = ring_table.next; ptr != &ring_table; ptr = ptr->next) {
-+    entry = list_entry(ptr, struct ring_element, list);
-+    kfree(entry);
-+  }
-+
-+  while(ring_cluster_list != NULL) {
-+    struct ring_cluster *next = ring_cluster_list->next;
-+    kfree(ring_cluster_list);
-+    ring_cluster_list = next;
-+  }
-+
-+  set_skb_ring_handler(NULL);
-+  set_buffer_ring_handler(NULL);
-+  sock_unregister(PF_RING);
-+
-+  printk("PF_RING shut down.\n");
-+}
-+
-+/* ************************************ */
-+
-+static int __init ring_init(void)
-+{
-+  printk("Welcome to PF_RING %s\n(C) 2004 L.Deri <deri@ntop.org>\n",
-+	 RING_VERSION);
-+
-+  INIT_LIST_HEAD(&ring_table);
-+  ring_cluster_list = NULL;
-+
-+  sock_register(&ring_family_ops);
-+
-+  set_skb_ring_handler(skb_ring_handler);
-+  set_buffer_ring_handler(buffer_ring_handler);
-+
-+  if(get_buffer_ring_handler() != buffer_ring_handler) {
-+    printk("PF_RING: set_buffer_ring_handler FAILED\n");
-+
-+    set_skb_ring_handler(NULL);
-+    set_buffer_ring_handler(NULL);
-+    sock_unregister(PF_RING);
-+    return -1;
-+  } else {
-+    printk("PF_RING: bucket length    %d bytes\n", bucket_len);
-+    printk("PF_RING: ring slots       %d\n", num_slots);
-+    printk("PF_RING: sample rate      %d [1=no sampling]\n", sample_rate);
-+    printk("PF_RING: capture TX       %s\n",
-+	   enable_tx_capture ? "Yes [RX+TX]" : "No [RX only]");
-+    printk("PF_RING: transparent mode %s\n",
-+	   transparent_mode ? "Yes" : "No");
-+
-+    printk("PF_RING initialized correctly.\n");
-+    return 0;
-+  }
-+}
-+
-+module_init(ring_init);
-+module_exit(ring_exit);
-+MODULE_LICENSE("GPL");
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+MODULE_ALIAS_NETPROTO(PF_RING);
-+#endif
diff --git a/openwrt/target/linux/generic-2.6/patches/104-pf_ring.patch b/openwrt/target/linux/generic-2.6/patches/104-pf_ring.patch
deleted file mode 100644
index 527e5d5..0000000
--- a/openwrt/target/linux/generic-2.6/patches/104-pf_ring.patch
+++ /dev/null
@@ -1,1833 +0,0 @@
-diff --unified --recursive --new-file linux-2.6.15-rc6/include/linux/ring.h linux-2.6.15-rc6-1-686-smp-ring3/include/linux/ring.h
---- linux-2.6.15-rc6/include/linux/ring.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.15-rc6-1-686-smp-ring3/include/linux/ring.h	2005-12-24 00:24:01.000000000 +0100
-@@ -0,0 +1,107 @@
-+/*
-+ * Definitions for packet ring
-+ *
-+ * 2004 - Luca Deri <deri@ntop.org>
-+ */
-+#ifndef __RING_H
-+#define __RING_H
-+
-+
-+#define INCLUDE_MAC_INFO
-+
-+#ifdef INCLUDE_MAC_INFO
-+#define SKB_DISPLACEMENT    14 /* Include MAC address information */
-+#else
-+#define SKB_DISPLACEMENT    0  /* Do NOT include MAC address information */
-+#endif
-+
-+#define RING_MAGIC
-+#define RING_MAGIC_VALUE      0x88
-+#define RING_FLOWSLOT_VERSION    6
-+#define RING_VERSION          "3.1"
-+
-+#define SO_ADD_TO_CLUSTER        99
-+#define SO_REMOVE_FROM_CLUSTER  100
-+#define SO_SET_REFLECTOR        101
-+
-+/* *********************************** */
-+
-+#ifndef HAVE_PCAP
-+struct pcap_pkthdr {
-+  struct timeval ts;    /* time stamp */
-+  u_int32_t caplen;     /* length of portion present */
-+  u_int32_t len;        /* length this packet (off wire) */
-+};
-+#endif
-+
-+/* *********************************** */
-+
-+enum cluster_type {
-+  cluster_per_flow = 0,
-+  cluster_round_robin
-+};
-+
-+/* *********************************** */
-+
-+#define RING_MIN_SLOT_SIZE    (60+sizeof(struct pcap_pkthdr))
-+#define RING_MAX_SLOT_SIZE    (1514+sizeof(struct pcap_pkthdr))
-+
-+/* *********************************** */
-+
-+typedef struct flowSlotInfo {
-+  u_int16_t version, sample_rate;
-+  u_int32_t tot_slots, slot_len, data_len, tot_mem;
-+  
-+  u_int64_t tot_pkts, tot_lost;
-+  u_int64_t tot_insert, tot_read;  
-+  u_int32_t insert_idx, remove_idx;
-+} FlowSlotInfo;
-+
-+/* *********************************** */
-+
-+typedef struct flowSlot {
-+#ifdef RING_MAGIC
-+  u_char     magic;      /* It must alwasy be zero */
-+#endif
-+  u_char     slot_state; /* 0=empty, 1=full   */
-+  u_char     bucket;     /* bucket[bucketLen] */
-+} FlowSlot;
-+
-+/* *********************************** */
-+
-+#ifdef __KERNEL__ 
-+
-+FlowSlotInfo* getRingPtr(void);
-+int allocateRing(char *deviceName, u_int numSlots,
-+		 u_int bucketLen, u_int sampleRate);
-+unsigned int pollRing(struct file *fp, struct poll_table_struct * wait);
-+void deallocateRing(void);
-+
-+/* ************************* */
-+
-+typedef int (*handle_ring_skb)(struct sk_buff *skb,
-+			       u_char recv_packet, u_char real_skb);
-+extern handle_ring_skb get_skb_ring_handler(void);
-+extern void set_skb_ring_handler(handle_ring_skb the_handler);
-+extern void do_skb_ring_handler(struct sk_buff *skb,
-+				u_char recv_packet, u_char real_skb);
-+
-+typedef int (*handle_ring_buffer)(struct net_device *dev, 
-+				     char *data, int len);
-+extern handle_ring_buffer get_buffer_ring_handler(void);
-+extern void set_buffer_ring_handler(handle_ring_buffer the_handler);
-+extern int do_buffer_ring_handler(struct net_device *dev,
-+				  char *data, int len);
-+#endif /* __KERNEL__  */
-+
-+/* *********************************** */
-+
-+#define PF_RING          27      /* Packet Ring */
-+#define SOCK_RING        PF_RING
-+
-+/* ioctl() */
-+#define SIORINGPOLL      0x8888
-+
-+/* *********************************** */
-+
-+#endif /* __RING_H */
-diff --unified --recursive --new-file linux-2.6.15-rc6/net/core/dev.c linux-2.6.15-rc6-1-686-smp-ring3/net/core/dev.c
---- linux-2.6.15-rc6/net/core/dev.c	2005-12-19 01:36:54.000000000 +0100
-+++ linux-2.6.15-rc6-1-686-smp-ring3/net/core/dev.c	2005-12-24 00:24:02.000000000 +0100
-@@ -115,6 +115,56 @@
- #endif	/* CONFIG_NET_RADIO */
- #include <asm/current.h>
- 
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+
-+/* #define RING_DEBUG */
-+
-+#include <linux/ring.h>
-+#include <linux/version.h>
-+
-+static handle_ring_skb ring_handler = NULL;
-+
-+handle_ring_skb get_skb_ring_handler() { return(ring_handler); }
-+
-+void set_skb_ring_handler(handle_ring_skb the_handler) {
-+  ring_handler = the_handler;
-+}
-+
-+void do_skb_ring_handler(struct sk_buff *skb,
-+			 u_char recv_packet, u_char real_skb) {
-+  if(ring_handler)
-+    ring_handler(skb, recv_packet, real_skb);
-+}
-+
-+/* ******************* */
-+
-+static handle_ring_buffer buffer_ring_handler = NULL;
-+
-+handle_ring_buffer get_buffer_ring_handler() { return(buffer_ring_handler); }
-+
-+void set_buffer_ring_handler(handle_ring_buffer the_handler) {
-+  buffer_ring_handler = the_handler;
-+}
-+
-+int do_buffer_ring_handler(struct net_device *dev, char *data, int len) {
-+  if(buffer_ring_handler) {
-+    buffer_ring_handler(dev, data, len);
-+    return(1);
-+  } else 
-+    return(0);
-+}
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+EXPORT_SYMBOL(get_skb_ring_handler);
-+EXPORT_SYMBOL(set_skb_ring_handler);
-+EXPORT_SYMBOL(do_skb_ring_handler);
-+
-+EXPORT_SYMBOL(get_buffer_ring_handler);
-+EXPORT_SYMBOL(set_buffer_ring_handler);
-+EXPORT_SYMBOL(do_buffer_ring_handler);
-+#endif
-+
-+#endif
- /*
-  *	The list of packet types we will receive (as opposed to discard)
-  *	and the routines to invoke.
-@@ -1296,6 +1346,10 @@
- 	skb->tc_verd = SET_TC_AT(skb->tc_verd,AT_EGRESS);
- #endif
- 	if (q->enqueue) {
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+	if(ring_handler) ring_handler(skb, 0, 1);
-+#endif /* CONFIG_RING */
-+
- 		/* Grab device queue */
- 		spin_lock(&dev->queue_lock);
- 
-@@ -1437,6 +1491,13 @@
- 
- 	preempt_disable();
- 	err = netif_rx(skb);
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+	if(ring_handler && ring_handler(skb, 1, 1)) {
-+	  /* The packet has been copied into a ring */
-+	  return(NET_RX_SUCCESS);
-+	}
-+#endif /* CONFIG_RING */
-+
- 	if (local_softirq_pending())
- 		do_softirq();
- 	preempt_enable();
-@@ -1582,6 +1643,13 @@
- 	struct net_device *orig_dev;
- 	int ret = NET_RX_DROP;
- 	unsigned short type;
-+#if defined (CONFIG_RING) || defined(CONFIG_RING_MODULE)
-+	if(ring_handler && ring_handler(skb, 1, 1)) {
-+	  /* The packet has been copied into a ring */
-+	  return(NET_RX_SUCCESS);
-+	}
-+#endif /* CONFIG_RING */
-+
- 
- 	/* if we've gotten here through NAPI, check netpoll */
- 	if (skb->dev->poll && netpoll_rx(skb))
-diff --unified --recursive --new-file linux-2.6.15-rc6/net/Kconfig linux-2.6.15-rc6-1-686-smp-ring3/net/Kconfig
---- linux-2.6.15-rc6/net/Kconfig	2005-12-19 01:36:54.000000000 +0100
-+++ linux-2.6.15-rc6-1-686-smp-ring3/net/Kconfig	2005-12-24 00:24:02.000000000 +0100
-@@ -31,6 +31,7 @@
- source "net/unix/Kconfig"
- source "net/xfrm/Kconfig"
- 
-+source "net/ring/Kconfig"
- config INET
- 	bool "TCP/IP networking"
- 	---help---
-diff --unified --recursive --new-file linux-2.6.15-rc6/net/Makefile linux-2.6.15-rc6-1-686-smp-ring3/net/Makefile
---- linux-2.6.15-rc6/net/Makefile	2005-12-19 01:36:54.000000000 +0100
-+++ linux-2.6.15-rc6-1-686-smp-ring3/net/Makefile	2005-12-24 00:24:02.000000000 +0100
-@@ -42,6 +42,7 @@
- obj-$(CONFIG_DECNET)		+= decnet/
- obj-$(CONFIG_ECONET)		+= econet/
- obj-$(CONFIG_VLAN_8021Q)	+= 8021q/
-+obj-$(CONFIG_RING)		+= ring/
- obj-$(CONFIG_IP_DCCP)		+= dccp/
- obj-$(CONFIG_IP_SCTP)		+= sctp/
- obj-$(CONFIG_IEEE80211)		+= ieee80211/
-diff --unified --recursive --new-file linux-2.6.15-rc6/net/ring/Kconfig linux-2.6.15-rc6-1-686-smp-ring3/net/ring/Kconfig
---- linux-2.6.15-rc6/net/ring/Kconfig	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.15-rc6-1-686-smp-ring3/net/ring/Kconfig	2005-12-24 00:24:02.000000000 +0100
-@@ -0,0 +1,14 @@
-+config RING
-+	tristate "PF_RING sockets (EXPERIMENTAL)"
-+	depends on EXPERIMENTAL
-+	---help---
-+	  PF_RING socket family, optimized for packet capture.
-+          If a PF_RING socket is bound to an adapter (via the bind() system
-+          call), such adapter will be used in read-only mode until the socket
-+          is destroyed. Whenever an incoming packet is received from the adapter
-+          it will not passed to upper layers, but instead it is copied to a ring
-+          buffer, which in turn is exported to user space applications via mmap.
-+          Please refer to http://luca.ntop.org/Ring.pdf for more.
-+
-+	  Say N unless you know what you are doing.
-+
-diff --unified --recursive --new-file linux-2.6.15-rc6/net/ring/Makefile linux-2.6.15-rc6-1-686-smp-ring3/net/ring/Makefile
---- linux-2.6.15-rc6/net/ring/Makefile	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.15-rc6-1-686-smp-ring3/net/ring/Makefile	2005-12-24 00:24:02.000000000 +0100
-@@ -0,0 +1,7 @@
-+#
-+# Makefile for the ring driver.
-+#
-+
-+obj-m += ring.o
-+
-+ring-objs := ring_packet.o
-diff --unified --recursive --new-file linux-2.6.15-rc6/net/ring/ring_packet.c linux-2.6.15-rc6-1-686-smp-ring3/net/ring/ring_packet.c
---- linux-2.6.15-rc6/net/ring/ring_packet.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.15-rc6-1-686-smp-ring3/net/ring/ring_packet.c	2005-12-24 00:24:02.000000000 +0100
-@@ -0,0 +1,1568 @@
-+/*
-+ *
-+ * (C) 2004-05 - Luca Deri <deri@ntop.org>
-+ *
-+ * This code includes contributions courtesy of
-+ * - Jeff Randall <jrandall@nexvu.com>
-+ * - Helmut Manck <helmut.manck@secunet.com>
-+ * - Brad Doctor <brad@stillsecure.com>
-+ * - Amit D. Chaudhary <amit_ml@rajgad.com>
-+ *
-+ */
-+
-+/* 
-+   TO DO:
-+   add an entry inside the /proc filesystem 
-+*/
-+
-+#include <linux/version.h>
-+#include <linux/config.h>
-+#include <linux/module.h>
-+#include <linux/kernel.h>
-+#include <linux/socket.h>
-+#include <linux/skbuff.h>
-+#include <linux/rtnetlink.h>
-+#include <linux/in.h>
-+#include <linux/in6.h>
-+#include <linux/init.h>
-+#include <linux/filter.h>
-+#include <linux/ring.h>
-+#include <linux/ip.h>
-+#include <linux/tcp.h>
-+#include <linux/udp.h>
-+#include <linux/list.h>
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#include <net/xfrm.h>
-+#else
-+#include <linux/poll.h>
-+#endif
-+#include <net/sock.h>
-+#include <asm/io.h>   /* needed for virt_to_phys() */
-+
-+/* #define RING_DEBUG */
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,11))
-+static inline int remap_page_range(struct vm_area_struct *vma,
-+				   unsigned long uvaddr,
-+				   unsigned long paddr,
-+				   unsigned long size,
-+				   pgprot_t prot) {
-+  return(remap_pfn_range(vma, uvaddr, paddr >> PAGE_SHIFT,
-+			 size, prot));
-+}
-+#endif
-+
-+/* ************************************************* */
-+
-+#define CLUSTER_LEN       8
-+
-+struct ring_cluster {
-+  u_short             cluster_id; /* 0 = no cluster */
-+  u_short             num_cluster_elements;
-+  enum cluster_type   hashing_mode;
-+  u_short             hashing_id;
-+  struct sock         *sk[CLUSTER_LEN];
-+  struct ring_cluster *next;      /* NULL = last element of the cluster */
-+};
-+
-+/* ************************************************* */
-+
-+struct ring_element {
-+  struct list_head  list;
-+  struct sock      *sk;
-+};
-+
-+/* ************************************************* */
-+
-+struct ring_opt {
-+  struct net_device *ring_netdev;
-+
-+  /* Cluster */
-+  u_short cluster_id; /* 0 = no cluster */
-+
-+  /* Reflector */
-+  struct net_device *reflector_dev;
-+
-+  /* Packet buffers */
-+  unsigned long order;
-+
-+  /* Ring Slots */
-+  unsigned long ring_memory;
-+  FlowSlotInfo *slots_info; /* Basically it points to ring_memory */
-+  char *ring_slots;  /* Basically it points to ring_memory
-+			+sizeof(FlowSlotInfo) */
-+
-+  /* Packet Sampling */
-+  u_int pktToSample, sample_rate;
-+
-+  /* BPF Filter */
-+  struct sk_filter *bpfFilter;
-+
-+  /* Locks */
-+  atomic_t num_ring_slots_waiters;
-+  wait_queue_head_t ring_slots_waitqueue;
-+  rwlock_t ring_index_lock;
-+
-+  /* Indexes (Internal) */
-+  u_int insert_page_id, insert_slot_id;
-+};
-+
-+/* ************************************************* */
-+
-+/* List of all ring sockets. */
-+static struct list_head ring_table;
-+
-+/* List of all clusters */
-+static struct ring_cluster *ring_cluster_list;
-+
-+static rwlock_t ring_mgmt_lock = RW_LOCK_UNLOCKED;
-+
-+/* ********************************** */
-+
-+/* Forward */
-+static struct proto_ops ring_ops;
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,11))
-+static struct proto ring_proto;
-+#endif
-+
-+static int skb_ring_handler(struct sk_buff *skb, u_char recv_packet,
-+			    u_char real_skb);
-+static int buffer_ring_handler(struct net_device *dev, char *data, int len);
-+static int remove_from_cluster(struct sock *sock, struct ring_opt *pfr);
-+
-+/* Extern */
-+
-+/* ********************************** */
-+
-+/* Defaults */
-+static u_int bucket_len = 128, num_slots = 4096, sample_rate = 1,
-+  transparent_mode = 1, enable_tx_capture = 0;
-+
-+MODULE_PARM(bucket_len, "i");
-+MODULE_PARM_DESC(bucket_len, "Number of ring buckets");
-+MODULE_PARM(num_slots,  "i");
-+MODULE_PARM_DESC(num_slots,  "Number of ring slots");
-+MODULE_PARM(sample_rate, "i");
-+MODULE_PARM_DESC(sample_rate, "Ring packet sample rate");
-+MODULE_PARM(transparent_mode, "i");
-+MODULE_PARM_DESC(transparent_mode,
-+		 "Set to 1 to set transparent mode "
-+		 "(slower but backwards compatible)");
-+MODULE_PARM(enable_tx_capture, "i");
-+MODULE_PARM_DESC(enable_tx_capture, "Set to 1 to capture outgoing packets");
-+
-+/* ********************************** */
-+
-+#define MIN_QUEUED_PKTS      64
-+#define MAX_QUEUE_LOOPS      64
-+
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#define ring_sk_datatype(__sk) ((struct ring_opt *)__sk)
-+#define ring_sk(__sk) ((__sk)->sk_protinfo)
-+#else
-+#define ring_sk_datatype(a) (a)
-+#define ring_sk(__sk) ((__sk)->protinfo.pf_ring)
-+#endif
-+
-+#define _rdtsc() ({ uint64_t x; asm volatile("rdtsc" : "=A" (x)); x; })
-+
-+/*
-+  int dev_queue_xmit(struct sk_buff *skb)
-+  skb->dev;
-+  struct net_device *dev_get_by_name(const char *name)
-+*/
-+
-+/* ********************************** */
-+
-+static void ring_sock_destruct(struct sock *sk) {
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+  skb_queue_purge(&sk->sk_receive_queue);
-+
-+  if (!sock_flag(sk, SOCK_DEAD)) {
-+#if defined(RING_DEBUG)
-+    printk("Attempt to release alive ring socket: %p\n", sk);
-+#endif
-+    return;
-+  }
-+
-+  BUG_TRAP(!atomic_read(&sk->sk_rmem_alloc));
-+  BUG_TRAP(!atomic_read(&sk->sk_wmem_alloc));
-+#else
-+
-+  BUG_TRAP(atomic_read(&sk->rmem_alloc)==0);
-+  BUG_TRAP(atomic_read(&sk->wmem_alloc)==0);
-+
-+  if (!sk->dead) {
-+#if defined(RING_DEBUG)
-+    printk("Attempt to release alive ring socket: %p\n", sk);
-+#endif
-+    return;
-+  }
-+#endif
-+
-+  kfree(ring_sk(sk));
-+
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-+  MOD_DEC_USE_COUNT;
-+#endif
-+}
-+
-+/* ********************************** */
-+/*
-+ * ring_insert()
-+ *
-+ * store the sk in a new element and add it
-+ * to the head of the list.
-+ */
-+static inline void ring_insert(struct sock *sk) {
-+  struct ring_element *next;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_insert()\n");
-+#endif
-+
-+  next = kmalloc(sizeof(struct ring_element), GFP_ATOMIC);
-+  if(next != NULL) {
-+    next->sk = sk;
-+    write_lock_irq(&ring_mgmt_lock);
-+    list_add(&next->list, &ring_table);
-+    write_unlock_irq(&ring_mgmt_lock);
-+  } else {
-+    if (net_ratelimit())
-+      printk("RING: could not kmalloc slot!!\n");
-+  }
-+}
-+
-+/* ********************************** */
-+/*
-+ * ring_remove()
-+ *
-+ * For each of the elements in the list:
-+ *  - check if this is the element we want to delete
-+ *  - if it is, remove it from the list, and free it.
-+ *
-+ * stop when we find the one we're looking for (break),
-+ * or when we reach the end of the list.
-+ */
-+static inline void ring_remove(struct sock *sk) {
-+  struct list_head *ptr;
-+  struct ring_element *entry;
-+
-+
-+  for(ptr = ring_table.next; ptr != &ring_table; ptr = ptr->next) {
-+    entry = list_entry(ptr, struct ring_element, list);
-+
-+    if(entry->sk == sk) {
-+      write_lock_irq(&ring_mgmt_lock);
-+      list_del(ptr);
-+      kfree(ptr);
-+      write_unlock_irq(&ring_mgmt_lock);
-+      break;
-+    }
-+  }
-+
-+}
-+
-+/* ********************************** */
-+
-+static u_int32_t num_queued_pkts(struct ring_opt *pfr) {
-+
-+  if(pfr->ring_slots != NULL) {
-+
-+    u_int32_t tot_insert = pfr->slots_info->insert_idx,
-+#if defined(RING_DEBUG)
-+      tot_read = pfr->slots_info->tot_read, tot_pkts;
-+#else
-+    tot_read = pfr->slots_info->tot_read;
-+#endif
-+
-+    if(tot_insert >= tot_read) {
-+#if defined(RING_DEBUG)
-+      tot_pkts = tot_insert-tot_read;
-+#endif
-+      return(tot_insert-tot_read);
-+    } else {
-+#if defined(RING_DEBUG)
-+      tot_pkts = ((u_int32_t)-1)+tot_insert-tot_read;
-+#endif
-+      return(((u_int32_t)-1)+tot_insert-tot_read);
-+    }
-+
-+#if defined(RING_DEBUG)
-+    printk("-> num_queued_pkts=%d [tot_insert=%d][tot_read=%d]\n",
-+	   tot_pkts, tot_insert, tot_read);
-+#endif
-+
-+  } else
-+    return(0);
-+}
-+
-+/* ********************************** */
-+
-+static inline FlowSlot* get_insert_slot(struct ring_opt *pfr) {
-+#if defined(RING_DEBUG)
-+  printk("get_insert_slot(%d)\n", pfr->slots_info->insert_idx);
-+#endif
-+
-+  if(pfr->ring_slots != NULL) {
-+    FlowSlot *slot = (FlowSlot*)&(pfr->ring_slots[pfr->slots_info->insert_idx
-+						  *pfr->slots_info->slot_len]);
-+    return(slot);
-+  } else
-+    return(NULL);
-+}
-+
-+/* ********************************** */
-+
-+static inline FlowSlot* get_remove_slot(struct ring_opt *pfr) {
-+#if defined(RING_DEBUG)
-+  printk("get_remove_slot(%d)\n", pfr->slots_info->remove_idx);
-+#endif
-+
-+  if(pfr->ring_slots != NULL)
-+    return((FlowSlot*)&(pfr->ring_slots[pfr->slots_info->remove_idx*
-+					pfr->slots_info->slot_len]));
-+  else
-+    return(NULL);
-+}
-+
-+/* ********************************** */
-+
-+static void add_skb_to_ring(struct sk_buff *skb,
-+			    struct ring_opt *pfr,
-+			    u_char recv_packet,
-+			    u_char real_skb /* 1=skb 0=faked skb */) {
-+  FlowSlot *theSlot;
-+  int idx, displ;
-+
-+  if(recv_packet) {
-+    /* Hack for identifying a packet received by the e1000 */
-+    if(real_skb) {
-+      displ = SKB_DISPLACEMENT;
-+    } else
-+      displ = 0; /* Received by the e1000 wrapper */
-+  } else
-+    displ = 0;
-+
-+  write_lock(&pfr->ring_index_lock);
-+  pfr->slots_info->tot_pkts++;
-+  write_unlock(&pfr->ring_index_lock);
-+
-+  /* BPF Filtering (from af_packet.c) */
-+  if(pfr->bpfFilter != NULL) {
-+    unsigned res = 1, len;
-+
-+    len = skb->len-skb->data_len;
-+
-+    write_lock(&pfr->ring_index_lock);
-+    skb->data -= displ;
-+    res = sk_run_filter(skb, pfr->bpfFilter->insns, pfr->bpfFilter->len);
-+    skb->data += displ;
-+    write_unlock(&pfr->ring_index_lock);
-+
-+    if(res == 0) {
-+      /* Filter failed */
-+
-+#if defined(RING_DEBUG)
-+      printk("add_skb_to_ring(skb): Filter failed [len=%d][tot=%llu]"
-+	     "[insertIdx=%d][pkt_type=%d][cloned=%d]\n",
-+	     (int)skb->len, pfr->slots_info->tot_pkts,
-+	     pfr->slots_info->insert_idx,
-+	     skb->pkt_type, skb->cloned);
-+#endif
-+
-+      return;
-+    }
-+  }
-+
-+  /* ************************** */
-+
-+  if(pfr->sample_rate > 1) {
-+    if(pfr->pktToSample == 0) {
-+      write_lock(&pfr->ring_index_lock);
-+      pfr->pktToSample = pfr->sample_rate;
-+      write_unlock(&pfr->ring_index_lock);
-+    } else {
-+      write_lock(&pfr->ring_index_lock);
-+      pfr->pktToSample--;
-+      write_unlock(&pfr->ring_index_lock);
-+
-+#if defined(RING_DEBUG)
-+      printk("add_skb_to_ring(skb): sampled packet [len=%d]"
-+	     "[tot=%llu][insertIdx=%d][pkt_type=%d][cloned=%d]\n",
-+	     (int)skb->len, pfr->slots_info->tot_pkts,
-+	     pfr->slots_info->insert_idx,
-+	     skb->pkt_type, skb->cloned);
-+#endif
-+      return;
-+    }
-+  }
-+
-+  /* ************************************* */
-+
-+  if((pfr->reflector_dev != NULL)
-+     && (!netif_queue_stopped(pfr->reflector_dev))) {
-+    int cpu = smp_processor_id();
-+
-+    /* increase reference counter so that this skb is not freed */
-+    atomic_inc(&skb->users);
-+
-+    skb->data -= displ;
-+
-+    /* send it */
-+    if (pfr->reflector_dev->xmit_lock_owner != cpu) {
-+      spin_lock_bh(&pfr->reflector_dev->xmit_lock);
-+      pfr->reflector_dev->xmit_lock_owner = cpu;
-+      spin_unlock_bh(&pfr->reflector_dev->xmit_lock);
-+
-+      if (pfr->reflector_dev->hard_start_xmit(skb,
-+					      pfr->reflector_dev) == 0) {
-+        spin_lock_bh(&pfr->reflector_dev->xmit_lock);
-+	pfr->reflector_dev->xmit_lock_owner = -1;
-+	skb->data += displ;
-+	spin_unlock_bh(&pfr->reflector_dev->xmit_lock);
-+#if defined(RING_DEBUG)
-+	printk("++ hard_start_xmit succeeded\n");
-+#endif
-+	return; /* OK */
-+      }
-+
-+      spin_lock_bh(&pfr->reflector_dev->xmit_lock);
-+      pfr->reflector_dev->xmit_lock_owner = -1;
-+      spin_unlock_bh(&pfr->reflector_dev->xmit_lock);
-+    }
-+
-+#if defined(RING_DEBUG)
-+    printk("++ hard_start_xmit failed\n");
-+#endif
-+    skb->data += displ;
-+    return; /* -ENETDOWN */
-+  }
-+
-+  /* ************************************* */
-+
-+#if defined(RING_DEBUG)
-+  printk("add_skb_to_ring(skb) [len=%d][tot=%llu][insertIdx=%d]"
-+	 "[pkt_type=%d][cloned=%d]\n",
-+	 (int)skb->len, pfr->slots_info->tot_pkts,
-+	 pfr->slots_info->insert_idx,
-+	 skb->pkt_type, skb->cloned);
-+#endif
-+
-+  idx = pfr->slots_info->insert_idx;
-+  theSlot = get_insert_slot(pfr);
-+
-+  if((theSlot != NULL) && (theSlot->slot_state == 0)) {
-+    struct pcap_pkthdr *hdr;
-+    char *bucket;
-+
-+    /* Update Index */
-+    idx++;
-+
-+    if(idx == pfr->slots_info->tot_slots) {
-+      write_lock(&pfr->ring_index_lock);
-+      pfr->slots_info->insert_idx = 0;
-+      write_unlock(&pfr->ring_index_lock);
-+    } else {
-+      write_lock(&pfr->ring_index_lock);
-+      pfr->slots_info->insert_idx = idx;
-+      write_unlock(&pfr->ring_index_lock);
-+    }
-+
-+    bucket = &theSlot->bucket;
-+    hdr = (struct pcap_pkthdr*)bucket;
-+
-+    /* BD - API changed for time keeping */
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14))
-+    if(skb->stamp.tv_sec == 0) do_gettimeofday(&skb->stamp);
-+
-+    hdr->ts.tv_sec = skb->stamp.tv_sec, hdr->ts.tv_usec = skb->stamp.tv_usec;
-+#else
-+    if(skb->tstamp.off_sec == 0) __net_timestamp(skb);
-+
-+    hdr->ts.tv_sec = skb->tstamp.off_sec, hdr->ts.tv_usec = skb->tstamp.off_usec;
-+#endif
-+
-+    hdr->caplen    = skb->len+displ;
-+
-+    if(hdr->caplen > pfr->slots_info->data_len)
-+      hdr->caplen = pfr->slots_info->data_len;
-+
-+    hdr->len = skb->len+displ;
-+    memcpy(&bucket[sizeof(struct pcap_pkthdr)],
-+	   skb->data-displ, hdr->caplen);
-+
-+#if defined(RING_DEBUG)
-+    {
-+      static unsigned int lastLoss = 0;
-+
-+      if(pfr->slots_info->tot_lost
-+	 && (lastLoss != pfr->slots_info->tot_lost)) {
-+	printk("add_skb_to_ring(%d): [data_len=%d]"
-+	       "[hdr.caplen=%d][skb->len=%d]"
-+	       "[pcap_pkthdr=%d][removeIdx=%d]"
-+	       "[loss=%lu][page=%u][slot=%u]\n",
-+	       idx-1, pfr->slots_info->data_len, hdr->caplen, skb->len,
-+	       sizeof(struct pcap_pkthdr),
-+	       pfr->slots_info->remove_idx,
-+	       (long unsigned int)pfr->slots_info->tot_lost,
-+	       pfr->insert_page_id, pfr->insert_slot_id);
-+
-+	lastLoss = pfr->slots_info->tot_lost;
-+      }
-+    }
-+#endif
-+
-+    write_lock(&pfr->ring_index_lock);
-+    pfr->slots_info->tot_insert++;
-+    theSlot->slot_state = 1;
-+    write_unlock(&pfr->ring_index_lock);
-+  } else {
-+    write_lock(&pfr->ring_index_lock);
-+    pfr->slots_info->tot_lost++;
-+    write_unlock(&pfr->ring_index_lock);
-+
-+#if defined(RING_DEBUG)
-+    printk("add_skb_to_ring(skb): packet lost [loss=%lu]"
-+	   "[removeIdx=%u][insertIdx=%u]\n",
-+	   (long unsigned int)pfr->slots_info->tot_lost,
-+	   pfr->slots_info->remove_idx, pfr->slots_info->insert_idx);
-+#endif
-+  }
-+
-+  /* wakeup in case of poll() */
-+  if(waitqueue_active(&pfr->ring_slots_waitqueue))
-+    wake_up_interruptible(&pfr->ring_slots_waitqueue);
-+}
-+
-+/* ********************************** */
-+
-+static u_int hash_skb(struct ring_cluster *cluster_ptr,
-+		      struct sk_buff *skb, u_char recv_packet) {
-+  u_int idx;
-+  int displ;
-+  struct iphdr *ip;
-+
-+  if(cluster_ptr->hashing_mode == cluster_round_robin) {
-+    idx = cluster_ptr->hashing_id++;
-+  } else {
-+    /* Per-flow clustering */
-+    if(skb->len > sizeof(struct iphdr)+sizeof(struct tcphdr)) {
-+      if(recv_packet)
-+	displ = 0;
-+      else
-+	displ = SKB_DISPLACEMENT;
-+
-+      /*
-+	skb->data+displ
-+
-+	Always points to to the IP part of the packet
-+      */
-+
-+      ip = (struct iphdr*)(skb->data+displ);
-+
-+      idx = ip->saddr+ip->daddr+ip->protocol;
-+
-+      if(ip->protocol == IPPROTO_TCP) {
-+	struct tcphdr *tcp = (struct tcphdr*)(skb->data+displ
-+					      +sizeof(struct iphdr));
-+	idx += tcp->source+tcp->dest;
-+      } else if(ip->protocol == IPPROTO_UDP) {
-+	struct udphdr *udp = (struct udphdr*)(skb->data+displ
-+					      +sizeof(struct iphdr));
-+	idx += udp->source+udp->dest;
-+      }
-+    } else
-+      idx = skb->len;
-+  }
-+
-+  return(idx % cluster_ptr->num_cluster_elements);
-+}
-+
-+/* ********************************** */
-+
-+static int skb_ring_handler(struct sk_buff *skb,
-+			    u_char recv_packet,
-+			    u_char real_skb /* 1=skb 0=faked skb */) {
-+  struct sock *skElement;
-+  int rc = 0;
-+  struct list_head *ptr;
-+  struct ring_cluster *cluster_ptr;
-+
-+#ifdef PROFILING
-+  uint64_t rdt = _rdtsc(), rdt1, rdt2;
-+#endif
-+
-+  if((!skb) /* Invalid skb */
-+     || ((!enable_tx_capture) && (!recv_packet))) {
-+    /*
-+      An outgoing packet is about to be sent out
-+      but we decided not to handle transmitted
-+      packets.
-+    */
-+    return(0);
-+  }
-+
-+#if defined(RING_DEBUG)
-+  if(0) {
-+    printk("skb_ring_handler() [len=%d][dev=%s]\n", skb->len,
-+	   skb->dev->name == NULL ? "<NULL>" : skb->dev->name);
-+  }
-+#endif
-+
-+#ifdef PROFILING
-+  rdt1 = _rdtsc();
-+#endif
-+
-+  /* [1] Check unclustered sockets */
-+  for (ptr = ring_table.next; ptr != &ring_table; ptr = ptr->next) {
-+    struct ring_opt *pfr;
-+    struct ring_element *entry;
-+
-+    entry = list_entry(ptr, struct ring_element, list);
-+
-+    read_lock(&ring_mgmt_lock);
-+    skElement = entry->sk;
-+    pfr = ring_sk(skElement);
-+    read_unlock(&ring_mgmt_lock);
-+
-+    if((pfr != NULL)
-+       && (pfr->cluster_id == 0 /* No cluster */)
-+       && (pfr->ring_slots != NULL)
-+       && (pfr->ring_netdev == skb->dev)) {
-+      /* We've found the ring where the packet can be stored */
-+      read_lock(&ring_mgmt_lock);
-+      add_skb_to_ring(skb, pfr, recv_packet, real_skb);
-+      read_unlock(&ring_mgmt_lock);
-+
-+      rc = 1; /* Ring found: we've done our job */
-+    }
-+  }
-+
-+  /* [2] Check socket clusters */
-+  cluster_ptr = ring_cluster_list;
-+
-+  while(cluster_ptr != NULL) {
-+    struct ring_opt *pfr;
-+
-+    if(cluster_ptr->num_cluster_elements > 0) {
-+      u_int skb_hash = hash_skb(cluster_ptr, skb, recv_packet);
-+
-+      read_lock(&ring_mgmt_lock);
-+      skElement = cluster_ptr->sk[skb_hash];
-+      read_unlock(&ring_mgmt_lock);
-+
-+      if(skElement != NULL) {
-+	pfr = ring_sk(skElement);
-+
-+	if((pfr != NULL)
-+	   && (pfr->ring_slots != NULL)
-+	   && (pfr->ring_netdev == skb->dev)) {
-+	  /* We've found the ring where the packet can be stored */
-+          read_lock(&ring_mgmt_lock);
-+	  add_skb_to_ring(skb, pfr, recv_packet, real_skb);
-+          read_unlock(&ring_mgmt_lock);
-+
-+	  rc = 1; /* Ring found: we've done our job */
-+	}
-+      }
-+    }
-+
-+    cluster_ptr = cluster_ptr->next;
-+  }
-+
-+#ifdef PROFILING
-+  rdt1 = _rdtsc()-rdt1;
-+#endif
-+
-+#ifdef PROFILING
-+  rdt2 = _rdtsc();
-+#endif
-+
-+  if(transparent_mode) rc = 0;
-+
-+  if((rc != 0) && real_skb)
-+    dev_kfree_skb(skb); /* Free the skb */
-+
-+#ifdef PROFILING
-+  rdt2 = _rdtsc()-rdt2;
-+  rdt = _rdtsc()-rdt;
-+
-+#if defined(RING_DEBUG)
-+  printk("# cycles: %d [lock costed %d %d%%][free costed %d %d%%]\n",
-+	 (int)rdt, rdt-rdt1,
-+	 (int)((float)((rdt-rdt1)*100)/(float)rdt),
-+	 rdt2,
-+	 (int)((float)(rdt2*100)/(float)rdt));
-+#endif
-+#endif
-+
-+  return(rc); /*  0 = packet not handled */
-+}
-+
-+/* ********************************** */
-+
-+struct sk_buff skb;
-+
-+static int buffer_ring_handler(struct net_device *dev,
-+			       char *data, int len) {
-+
-+#if defined(RING_DEBUG)
-+  printk("buffer_ring_handler: [dev=%s][len=%d]\n",
-+	 dev->name == NULL ? "<NULL>" : dev->name, len);
-+#endif
-+
-+  /* BD - API changed for time keeping */
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14))
-+  skb.dev = dev, skb.len = len, skb.data = data,
-+    skb.data_len = len, skb.stamp.tv_sec = 0; /* Calculate the time */
-+#else
-+  skb.dev = dev, skb.len = len, skb.data = data,
-+    skb.data_len = len, skb.tstamp.off_sec = 0; /* Calculate the time */
-+#endif
-+
-+  skb_ring_handler(&skb, 1, 0 /* fake skb */);
-+
-+  return(0);
-+}
-+
-+/* ********************************** */
-+
-+static int ring_create(struct socket *sock, int protocol) {
-+  struct sock *sk;
-+  struct ring_opt *pfr;
-+  int err;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_create()\n");
-+#endif
-+
-+  /* Are you root, superuser or so ? */
-+  if(!capable(CAP_NET_ADMIN))
-+    return -EPERM;
-+
-+  if(sock->type != SOCK_RAW)
-+    return -ESOCKTNOSUPPORT;
-+
-+  if(protocol != htons(ETH_P_ALL))
-+    return -EPROTONOSUPPORT;
-+
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-+  MOD_INC_USE_COUNT;
-+#endif
-+
-+  err = -ENOMEM;
-+
-+  // BD: -- broke this out to keep it more simple and clear as to what the
-+  // options are.
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,11))
-+  sk = sk_alloc(PF_RING, GFP_KERNEL, 1, NULL);
-+#else
-+  // BD: API changed in 2.6.12, ref:
-+  // http://svn.clkao.org/svnweb/linux/revision/?rev=28201
-+  sk = sk_alloc(PF_RING, GFP_ATOMIC, &ring_proto, 1);
-+#endif
-+#else
-+  /* Kernel 2.4 */
-+  sk = sk_alloc(PF_RING, GFP_KERNEL, 1);
-+#endif
-+
-+  if (sk == NULL)
-+    goto out;
-+
-+  sock->ops = &ring_ops;
-+  sock_init_data(sock, sk);
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,11))
-+  sk_set_owner(sk, THIS_MODULE);
-+#endif
-+#endif
-+
-+  err = -ENOMEM;
-+  ring_sk(sk) = ring_sk_datatype(kmalloc(sizeof(*pfr), GFP_KERNEL));
-+
-+  if (!(pfr = ring_sk(sk))) {
-+    sk_free(sk);
-+    goto out;
-+  }
-+  memset(pfr, 0, sizeof(*pfr));
-+  init_waitqueue_head(&pfr->ring_slots_waitqueue);
-+  pfr->ring_index_lock = RW_LOCK_UNLOCKED;
-+  atomic_set(&pfr->num_ring_slots_waiters, 0);
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+  sk->sk_family       = PF_RING;
-+  sk->sk_destruct     = ring_sock_destruct;
-+#else
-+  sk->family          = PF_RING;
-+  sk->destruct        = ring_sock_destruct;
-+  sk->num             = protocol;
-+#endif
-+
-+  ring_insert(sk);
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_create() - created\n");
-+#endif
-+
-+  return(0);
-+ out:
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
-+  MOD_DEC_USE_COUNT;
-+#endif
-+  return err;
-+}
-+
-+/* *********************************************** */
-+
-+static int ring_release(struct socket *sock)
-+{
-+  struct sock *sk = sock->sk;
-+  struct ring_opt *pfr = ring_sk(sk);
-+
-+  if(!sk)
-+    return 0;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: called ring_release\n");
-+#endif
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_release entered\n");
-+#endif
-+
-+  ring_remove(sk);
-+
-+  sock_orphan(sk);
-+  sock->sk = NULL;
-+
-+  /* Free the ring buffer */
-+  if(pfr->ring_memory) {
-+    struct page *page, *page_end;
-+
-+    page_end = virt_to_page(pfr->ring_memory + (PAGE_SIZE << pfr->order) - 1);
-+    for(page = virt_to_page(pfr->ring_memory); page <= page_end; page++)
-+      ClearPageReserved(page);
-+
-+    free_pages(pfr->ring_memory, pfr->order);
-+  }
-+
-+  kfree(pfr);
-+  ring_sk(sk) = NULL;
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+  skb_queue_purge(&sk->sk_write_queue);
-+#endif
-+  sock_put(sk);
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_release leaving\n");
-+#endif
-+
-+  return 0;
-+}
-+
-+/* ********************************** */
-+/*
-+ * We create a ring for this socket and bind it to the specified device
-+ */
-+static int packet_ring_bind(struct sock *sk, struct net_device *dev)
-+{
-+  u_int the_slot_len;
-+  u_int32_t tot_mem;
-+  struct ring_opt *pfr = ring_sk(sk);
-+  struct page *page, *page_end;
-+
-+  if(!dev) return(-1);
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: packet_ring_bind(%s) called\n", dev->name);
-+#endif
-+
-+  /* **********************************************
-+
-+  *************************************
-+  *                                   *
-+  *        FlowSlotInfo               *
-+  *                                   *
-+  ************************************* <-+
-+  *        FlowSlot                   *   |
-+  *************************************   |
-+  *        FlowSlot                   *   |
-+  *************************************   +- num_slots
-+  *        FlowSlot                   *   |
-+  *************************************   |
-+  *        FlowSlot                   *   |
-+  ************************************* <-+
-+
-+  ********************************************** */
-+
-+  the_slot_len = sizeof(u_char)    /* flowSlot.slot_state */
-+#ifdef RING_MAGIC
-+    + sizeof(u_char)
-+#endif
-+    + sizeof(struct pcap_pkthdr)
-+    + bucket_len      /* flowSlot.bucket */;
-+
-+  tot_mem = sizeof(FlowSlotInfo) + num_slots*the_slot_len;
-+
-+  /*
-+    Calculate the value of the order parameter used later.
-+    See http://www.linuxjournal.com/article.php?sid=1133
-+  */
-+  for(pfr->order = 0;(PAGE_SIZE << pfr->order) < tot_mem; pfr->order++)  ;
-+
-+  /*
-+    We now try to allocate the memory as required. If we fail
-+    we try to allocate a smaller amount or memory (hence a
-+    smaller ring).
-+  */
-+  while((pfr->ring_memory = __get_free_pages(GFP_ATOMIC, pfr->order)) == 0)
-+    if(pfr->order-- == 0)
-+      break;
-+
-+  if(pfr->order == 0) {
-+    printk("RING: ERROR not enough memory for ring\n");
-+    return(-1);
-+  } else {
-+    printk("RING: succesfully allocated %lu KB [tot_mem=%d][order=%ld]\n",
-+	   PAGE_SIZE >> (10 - pfr->order), tot_mem, pfr->order);
-+  }
-+
-+  tot_mem = PAGE_SIZE << pfr->order;
-+  memset((char*)pfr->ring_memory, 0, tot_mem);
-+
-+  /* Now we need to reserve the pages */
-+  page_end = virt_to_page(pfr->ring_memory + (PAGE_SIZE << pfr->order) - 1);
-+  for(page = virt_to_page(pfr->ring_memory); page <= page_end; page++)
-+    SetPageReserved(page);
-+
-+  pfr->slots_info = (FlowSlotInfo*)pfr->ring_memory;
-+  pfr->ring_slots = (char*)(pfr->ring_memory+sizeof(FlowSlotInfo));
-+
-+  pfr->slots_info->version     = RING_FLOWSLOT_VERSION;
-+  pfr->slots_info->slot_len    = the_slot_len;
-+  pfr->slots_info->data_len    = bucket_len;
-+  pfr->slots_info->tot_slots   = (tot_mem-sizeof(FlowSlotInfo))/the_slot_len;
-+  pfr->slots_info->tot_mem     = tot_mem;
-+  pfr->slots_info->sample_rate = sample_rate;
-+
-+  printk("RING: allocated %d slots [slot_len=%d][tot_mem=%u]\n",
-+	 pfr->slots_info->tot_slots, pfr->slots_info->slot_len,
-+	 pfr->slots_info->tot_mem);
-+
-+#ifdef RING_MAGIC
-+  {
-+    int i;
-+
-+    for(i=0; i<pfr->slots_info->tot_slots; i++) {
-+      unsigned long idx = i*pfr->slots_info->slot_len;
-+      FlowSlot *slot = (FlowSlot*)&pfr->ring_slots[idx];
-+      slot->magic = RING_MAGIC_VALUE; slot->slot_state = 0;
-+    }
-+  }
-+#endif
-+
-+  pfr->insert_page_id = 1, pfr->insert_slot_id = 0;
-+
-+  /*
-+    IMPORTANT
-+    Leave this statement here as last one. In fact when
-+    the ring_netdev != NULL the socket is ready to be used.
-+  */
-+  pfr->ring_netdev = dev;
-+
-+  return(0);
-+}
-+
-+/* ************************************* */
-+
-+/* Bind to a device */
-+static int ring_bind(struct socket *sock,
-+		     struct sockaddr *sa, int addr_len)
-+{
-+  struct sock *sk=sock->sk;
-+  struct net_device *dev = NULL;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_bind() called\n");
-+#endif
-+
-+  /*
-+   *	Check legality
-+   */
-+  if (addr_len != sizeof(struct sockaddr))
-+    return -EINVAL;
-+  if (sa->sa_family != PF_RING)
-+    return -EINVAL;
-+
-+  /* Safety check: add trailing zero if missing */
-+  sa->sa_data[sizeof(sa->sa_data)-1] = '\0';
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: searching device %s\n", sa->sa_data);
-+#endif
-+
-+  if((dev = __dev_get_by_name(sa->sa_data)) == NULL) {
-+#if defined(RING_DEBUG)
-+    printk("RING: search failed\n");
-+#endif
-+    return(-EINVAL);
-+  } else
-+    return(packet_ring_bind(sk, dev));
-+}
-+
-+/* ************************************* */
-+
-+static int ring_mmap(struct file *file,
-+		     struct socket *sock,
-+		     struct vm_area_struct *vma)
-+{
-+  struct sock *sk = sock->sk;
-+  struct ring_opt *pfr = ring_sk(sk);
-+  unsigned long size, start;
-+  u_int pagesToMap;
-+  char *ptr;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_mmap() called\n");
-+#endif
-+
-+  if(pfr->ring_memory == 0) {
-+#if defined(RING_DEBUG)
-+    printk("RING: ring_mmap() failed: mapping area to an unbound socket\n");
-+#endif
-+    return -EINVAL;
-+  }
-+
-+  size = (unsigned long)(vma->vm_end-vma->vm_start);
-+
-+  if(size % PAGE_SIZE) {
-+#if defined(RING_DEBUG)
-+    printk("RING: ring_mmap() failed: len is not multiple of PAGE_SIZE\n");
-+#endif
-+    return(-EINVAL);
-+  }
-+
-+  /* if userspace tries to mmap beyond end of our buffer, fail */
-+  if(size > pfr->slots_info->tot_mem) {
-+#if defined(RING_DEBUG)
-+    printk("proc_mmap() failed: area too large [%ld > %d]\n", size, pfr->slots_info->tot_mem);
-+#endif
-+    return(-EINVAL);
-+  }
-+
-+  pagesToMap = size/PAGE_SIZE;
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: ring_mmap() called. %d pages to map\n", pagesToMap);
-+#endif
-+
-+#if defined(RING_DEBUG)
-+  printk("RING: mmap [slot_len=%d][tot_slots=%d] for ring on device %s\n",
-+	 pfr->slots_info->slot_len, pfr->slots_info->tot_slots,
-+	 pfr->ring_netdev->name);
-+#endif
-+
-+  /* we do not want to have this area swapped out, lock it */
-+  vma->vm_flags |= VM_LOCKED;
-+  start = vma->vm_start;
-+
-+  /* Ring slots start from page 1 (page 0 is reserved for FlowSlotInfo) */
-+  ptr = (char*)(start+PAGE_SIZE);
-+
-+  if(remap_page_range(
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+		      vma,
-+#endif
-+		      start,
-+		      __pa(pfr->ring_memory),
-+		      PAGE_SIZE*pagesToMap, vma->vm_page_prot)) {
-+#if defined(RING_DEBUG)
-+    printk("remap_page_range() failed\n");
-+#endif
-+    return(-EAGAIN);
-+  }
-+
-+#if defined(RING_DEBUG)
-+  printk("proc_mmap(pagesToMap=%d): success.\n", pagesToMap);
-+#endif
-+
-+  return 0;
-+}
-+
-+/* ************************************* */
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+static int ring_recvmsg(struct kiocb *iocb, struct socket *sock,
-+			struct msghdr *msg, size_t len, int flags)
-+#else
-+  static int ring_recvmsg(struct socket *sock, struct msghdr *msg, int len,
-+			  int flags, struct scm_cookie *scm)
-+#endif
-+{
-+  FlowSlot* slot;
-+  struct ring_opt *pfr = ring_sk(sock->sk);
-+  u_int32_t queued_pkts, num_loops = 0;
-+
-+#if defined(RING_DEBUG)
-+  printk("ring_recvmsg called\n");
-+#endif
-+
-+  slot = get_remove_slot(pfr);
-+
-+  while((queued_pkts = num_queued_pkts(pfr)) < MIN_QUEUED_PKTS) {
-+    wait_event_interruptible(pfr->ring_slots_waitqueue, 1);
-+
-+#if defined(RING_DEBUG)
-+    printk("-> ring_recvmsg returning %d [queued_pkts=%d][num_loops=%d]\n",
-+	   slot->slot_state, queued_pkts, num_loops);
-+#endif
-+
-+    if(queued_pkts > 0) {
-+      if(num_loops++ > MAX_QUEUE_LOOPS)
-+	break;
-+    }
-+  }
-+
-+#if defined(RING_DEBUG)
-+  if(slot != NULL)
-+    printk("ring_recvmsg is returning [queued_pkts=%d][num_loops=%d]\n",
-+	   queued_pkts, num_loops);
-+#endif
-+
-+  return(queued_pkts);
-+}
-+
-+/* ************************************* */
-+
-+unsigned int ring_poll(struct file * file,
-+		       struct socket *sock, poll_table *wait)
-+{
-+  FlowSlot* slot;
-+  struct ring_opt *pfr = ring_sk(sock->sk);
-+
-+#if defined(RING_DEBUG)
-+  printk("poll called\n");
-+#endif
-+
-+  slot = get_remove_slot(pfr);
-+
-+  if((slot != NULL) && (slot->slot_state == 0))
-+    poll_wait(file, &pfr->ring_slots_waitqueue, wait);
-+
-+#if defined(RING_DEBUG)
-+  printk("poll returning %d\n", slot->slot_state);
-+#endif
-+
-+  if((slot != NULL) && (slot->slot_state == 1))
-+    return(POLLIN | POLLRDNORM);
-+  else
-+    return(0);
-+}
-+
-+/* ************************************* */
-+
-+int add_to_cluster_list(struct ring_cluster *el,
-+			struct sock *sock) {
-+
-+  if(el->num_cluster_elements == CLUSTER_LEN)
-+    return(-1); /* Cluster full */
-+
-+  ring_sk_datatype(ring_sk(sock))->cluster_id = el->cluster_id;
-+  el->sk[el->num_cluster_elements] = sock;
-+  el->num_cluster_elements++;
-+  return(0);
-+}
-+
-+/* ************************************* */
-+
-+int remove_from_cluster_list(struct ring_cluster *el,
-+			     struct sock *sock) {
-+  int i, j;
-+
-+  for(i=0; i<CLUSTER_LEN; i++)
-+    if(el->sk[i] == sock) {
-+      el->num_cluster_elements--;
-+
-+      if(el->num_cluster_elements > 0) {
-+	/* The cluster contains other elements */
-+	for(j=i; j<CLUSTER_LEN-1; j++)
-+	  el->sk[j] = el->sk[j+1];
-+
-+	el->sk[CLUSTER_LEN-1] = NULL;
-+      } else {
-+	/* Empty cluster */
-+	memset(el->sk, 0, sizeof(el->sk));
-+      }
-+
-+      return(0);
-+    }
-+
-+  return(-1); /* Not found */
-+}
-+
-+/* ************************************* */
-+
-+static int remove_from_cluster(struct sock *sock,
-+			       struct ring_opt *pfr)
-+{
-+  struct ring_cluster *el;
-+
-+#if defined(RING_DEBUG)
-+  printk("--> remove_from_cluster(%d)\n", pfr->cluster_id);
-+#endif
-+
-+  if(pfr->cluster_id == 0 /* 0 = No Cluster */)
-+    return(0); /* Noting to do */
-+
-+  el = ring_cluster_list;
-+
-+  while(el != NULL) {
-+    if(el->cluster_id == pfr->cluster_id) {
-+      return(remove_from_cluster_list(el, sock));
-+    } else
-+      el = el->next;
-+  }
-+
-+  return(-EINVAL); /* Not found */
-+}
-+
-+/* ************************************* */
-+
-+static int add_to_cluster(struct sock *sock,
-+			  struct ring_opt *pfr,
-+			  u_short cluster_id)
-+{
-+  struct ring_cluster *el;
-+
-+#ifndef RING_DEBUG
-+  printk("--> add_to_cluster(%d)\n", cluster_id);
-+#endif
-+
-+  if(cluster_id == 0 /* 0 = No Cluster */) return(-EINVAL);
-+
-+  if(pfr->cluster_id != 0)
-+    remove_from_cluster(sock, pfr);
-+
-+  el = ring_cluster_list;
-+
-+  while(el != NULL) {
-+    if(el->cluster_id == cluster_id) {
-+      return(add_to_cluster_list(el, sock));
-+    } else
-+      el = el->next;
-+  }
-+
-+  /* There's no existing cluster. We need to create one */
-+  if((el = kmalloc(sizeof(struct ring_cluster), GFP_KERNEL)) == NULL)
-+    return(-ENOMEM);
-+
-+  el->cluster_id = cluster_id;
-+  el->num_cluster_elements = 1;
-+  el->hashing_mode = cluster_per_flow; /* Default */
-+  el->hashing_id   = 0;
-+
-+  memset(el->sk, 0, sizeof(el->sk));
-+  el->sk[0] = sock;
-+  el->next = ring_cluster_list;
-+  ring_cluster_list = el;
-+  pfr->cluster_id = cluster_id;
-+
-+  return(0); /* 0 = OK */
-+}
-+
-+/* ************************************* */
-+
-+/* Code taken/inspired from core/sock.c */
-+static int ring_setsockopt(struct socket *sock,
-+			   int level, int optname,
-+			   char *optval, int optlen)
-+{
-+  struct ring_opt *pfr = ring_sk(sock->sk);
-+  int val, found, ret = 0;
-+  u_int cluster_id;
-+  char devName[8];
-+
-+  if((optlen<sizeof(int)) || (pfr == NULL))
-+    return(-EINVAL);
-+
-+  if (get_user(val, (int *)optval))
-+    return -EFAULT;
-+
-+  found = 1;
-+
-+  switch(optname)
-+    {
-+    case SO_ATTACH_FILTER:
-+      ret = -EINVAL;
-+      if (optlen == sizeof(struct sock_fprog)) {
-+	unsigned int fsize;
-+	struct sock_fprog fprog;
-+	struct sk_filter *filter;
-+
-+	ret = -EFAULT;
-+
-+	/*
-+	  NOTE
-+
-+	  Do not call copy_from_user within a held
-+	  splinlock (e.g. ring_mgmt_lock) as this caused
-+	  problems when certain debugging was enabled under
-+	  2.6.5 -- including hard lockups of the machine.
-+	*/
-+	if(copy_from_user(&fprog, optval, sizeof(fprog)))
-+	  break;
-+
-+	fsize = sizeof(struct sock_filter) * fprog.len;
-+	filter = kmalloc(fsize, GFP_KERNEL);
-+
-+	if(filter == NULL) {
-+	  ret = -ENOMEM;
-+	  break;
-+	}
-+
-+	if(copy_from_user(filter->insns, fprog.filter, fsize))
-+	  break;
-+
-+	filter->len = fprog.len;
-+
-+	if(sk_chk_filter(filter->insns, filter->len) != 0) {
-+	  /* Bad filter specified */
-+	  kfree(filter);
-+	  pfr->bpfFilter = NULL;
-+	  break;
-+	}
-+
-+	/* get the lock, set the filter, release the lock */
-+	write_lock(&ring_mgmt_lock);
-+	pfr->bpfFilter = filter;
-+	write_unlock(&ring_mgmt_lock);
-+      }
-+      ret = 0;
-+      break;
-+
-+    case SO_DETACH_FILTER:
-+      write_lock(&ring_mgmt_lock);
-+      found = 1;
-+      if(pfr->bpfFilter != NULL) {
-+	kfree(pfr->bpfFilter);
-+	pfr->bpfFilter = NULL;
-+	write_unlock(&ring_mgmt_lock);
-+	break;
-+      }
-+      ret = -ENONET;
-+      break;
-+
-+    case SO_ADD_TO_CLUSTER:
-+      if (optlen!=sizeof(val))
-+	return -EINVAL;
-+
-+      if (copy_from_user(&cluster_id, optval, sizeof(cluster_id)))
-+	return -EFAULT;
-+
-+      write_lock(&ring_mgmt_lock);
-+      ret = add_to_cluster(sock->sk, pfr, cluster_id);
-+      write_unlock(&ring_mgmt_lock);
-+      break;
-+
-+    case SO_REMOVE_FROM_CLUSTER:
-+      write_lock(&ring_mgmt_lock);
-+      ret = remove_from_cluster(sock->sk, pfr);
-+      write_unlock(&ring_mgmt_lock);
-+      break;
-+
-+    case SO_SET_REFLECTOR:
-+      if(optlen >= (sizeof(devName)-1))
-+	return -EINVAL;
-+
-+      if(optlen > 0) {
-+	if(copy_from_user(devName, optval, optlen))
-+	  return -EFAULT;
-+      }
-+
-+      devName[optlen] = '\0';
-+
-+#if defined(RING_DEBUG)
-+      printk("+++ SO_SET_REFLECTOR(%s)\n", devName);
-+#endif
-+
-+      write_lock(&ring_mgmt_lock);
-+      pfr->reflector_dev = dev_get_by_name(devName);
-+      write_unlock(&ring_mgmt_lock);
-+
-+#if defined(RING_DEBUG)
-+      if(pfr->reflector_dev != NULL)
-+	printk("SO_SET_REFLECTOR(%s): succeded\n", devName);
-+      else
-+	printk("SO_SET_REFLECTOR(%s): device unknown\n", devName);
-+#endif
-+      break;
-+
-+    default:
-+      found = 0;
-+      break;
-+    }
-+
-+  if(found)
-+    return(ret);
-+  else
-+    return(sock_setsockopt(sock, level, optname, optval, optlen));
-+}
-+
-+/* ************************************* */
-+
-+static int ring_ioctl(struct socket *sock,
-+		      unsigned int cmd, unsigned long arg)
-+{
-+  switch(cmd)
-+    {
-+    case SIOCGIFFLAGS:
-+    case SIOCSIFFLAGS:
-+    case SIOCGIFCONF:
-+    case SIOCGIFMETRIC:
-+    case SIOCSIFMETRIC:
-+    case SIOCGIFMEM:
-+    case SIOCSIFMEM:
-+    case SIOCGIFMTU:
-+    case SIOCSIFMTU:
-+    case SIOCSIFLINK:
-+    case SIOCGIFHWADDR:
-+    case SIOCSIFHWADDR:
-+    case SIOCSIFMAP:
-+    case SIOCGIFMAP:
-+    case SIOCSIFSLAVE:
-+    case SIOCGIFSLAVE:
-+    case SIOCGIFINDEX:
-+    case SIOCGIFNAME:
-+    case SIOCGIFCOUNT:
-+    case SIOCSIFHWBROADCAST:
-+      return(dev_ioctl(cmd,(void *) arg));
-+
-+    default:
-+      return -EOPNOTSUPP;
-+    }
-+
-+  return 0;
-+}
-+
-+/* ************************************* */
-+
-+static struct proto_ops ring_ops = {
-+  .family	=	PF_RING,
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+  .owner	=	THIS_MODULE,
-+#endif
-+
-+  /* Operations that make no sense on ring sockets. */
-+  .connect	=	sock_no_connect,
-+  .socketpair	=	sock_no_socketpair,
-+  .accept	=	sock_no_accept,
-+  .getname	=	sock_no_getname,
-+  .listen	=	sock_no_listen,
-+  .shutdown	=	sock_no_shutdown,
-+  .sendpage	=	sock_no_sendpage,
-+  .sendmsg	=	sock_no_sendmsg,
-+  .getsockopt	=	sock_no_getsockopt,
-+
-+  /* Now the operations that really occur. */
-+  .release	=	ring_release,
-+  .bind		=	ring_bind,
-+  .mmap		=	ring_mmap,
-+  .poll		=	ring_poll,
-+  .setsockopt	=	ring_setsockopt,
-+  .ioctl	=	ring_ioctl,
-+  .recvmsg	=	ring_recvmsg,
-+};
-+
-+/* ************************************ */
-+
-+static struct net_proto_family ring_family_ops = {
-+  .family	=	PF_RING,
-+  .create	=	ring_create,
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+  .owner	=	THIS_MODULE,
-+#endif
-+};
-+
-+// BD: API changed in 2.6.12, ref:
-+// http://svn.clkao.org/svnweb/linux/revision/?rev=28201
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,11))
-+static struct proto ring_proto = {
-+  .name		=	"PF_RING",
-+  .owner	=	THIS_MODULE,
-+  .obj_size	=	sizeof(struct sock),
-+};
-+#endif
-+
-+/* ************************************ */
-+
-+static void __exit ring_exit(void)
-+{
-+  struct list_head *ptr;
-+  struct ring_element *entry;
-+
-+  for(ptr = ring_table.next; ptr != &ring_table; ptr = ptr->next) {
-+    entry = list_entry(ptr, struct ring_element, list);
-+    kfree(entry);
-+  }
-+
-+  while(ring_cluster_list != NULL) {
-+    struct ring_cluster *next = ring_cluster_list->next;
-+    kfree(ring_cluster_list);
-+    ring_cluster_list = next;
-+  }
-+
-+  set_skb_ring_handler(NULL);
-+  set_buffer_ring_handler(NULL);
-+  sock_unregister(PF_RING);
-+
-+  printk("PF_RING shut down.\n");
-+}
-+
-+/* ************************************ */
-+
-+static int __init ring_init(void)
-+{
-+  printk("Welcome to PF_RING %s\n(C) 2004-05 L.Deri <deri@ntop.org>\n",
-+	 RING_VERSION);
-+
-+  INIT_LIST_HEAD(&ring_table);
-+  ring_cluster_list = NULL;
-+
-+  sock_register(&ring_family_ops);
-+
-+  set_skb_ring_handler(skb_ring_handler);
-+  set_buffer_ring_handler(buffer_ring_handler);
-+
-+  if(get_buffer_ring_handler() != buffer_ring_handler) {
-+    printk("PF_RING: set_buffer_ring_handler FAILED\n");
-+
-+    set_skb_ring_handler(NULL);
-+    set_buffer_ring_handler(NULL);
-+    sock_unregister(PF_RING);
-+    return -1;
-+  } else {
-+    printk("PF_RING: bucket length    %d bytes\n", bucket_len);
-+    printk("PF_RING: ring slots       %d\n", num_slots);
-+    printk("PF_RING: sample rate      %d [1=no sampling]\n", sample_rate);
-+    printk("PF_RING: capture TX       %s\n",
-+	   enable_tx_capture ? "Yes [RX+TX]" : "No [RX only]");
-+    printk("PF_RING: transparent mode %s\n",
-+	   transparent_mode ? "Yes" : "No");
-+
-+    printk("PF_RING initialized correctly.\n");
-+    return 0;
-+  }
-+}
-+
-+module_init(ring_init);
-+module_exit(ring_exit);
-+MODULE_LICENSE("GPL");
-+
-+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
-+MODULE_ALIAS_NETPROTO(PF_RING);
-+#endif
diff --git a/openwrt/target/linux/x86-2.6/config b/openwrt/target/linux/x86-2.6/config
index 39c5bff..fbeb425 100644
--- a/openwrt/target/linux/x86-2.6/config
+++ b/openwrt/target/linux/x86-2.6/config
@@ -281,7 +281,6 @@ CONFIG_UNIX=y
 CONFIG_XFRM=y
 # CONFIG_XFRM_USER is not set
 # CONFIG_NET_KEY is not set
-# CONFIG_RING is not set
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
 CONFIG_IP_ADVANCED_ROUTER=y