Merge master.kernel.org:/home/davem/BK/net-2.5

into home.transmeta.com:/home/torvalds/v2.5/linux

arch/i386/lib/checksum.S

@@ -149,6 +149,8 @@ csum_partial:
 30:	subl $2, %ecx          
 	ja 20b                 
 	je 32f
+	addl $2, %ecx
+	jz 80f
 	movzbl (%esi),%ebx	# csumming 1 byte, 2-aligned
 	addl %ebx, %eax
 	adcl $0, %eax

drivers/net/tg3.c

@@ -3337,8 +3337,10 @@ static int tg3_reset_hw(struct tg3 *tp)
 	/* Clear statistics/status block in chip, and status block in ram. */
 	for (i = NIC_SRAM_STATS_BLK;
 	     i < NIC_SRAM_STATUS_BLK + TG3_HW_STATUS_SIZE;
-	     i += sizeof(u32))
+	     i += sizeof(u32)) {
 		tg3_write_mem(tp, i, 0);
+		udelay(40);
+	}
 	memset(tp->hw_status, 0, TG3_HW_STATUS_SIZE);
 
 	/* This value is determined during the probe time DMA

include/linux/netfilter_ipv4/ip_conntrack.h

@@ -43,12 +43,57 @@ enum ip_conntrack_status {
 	IPS_ASSURED = (1 << IPS_ASSURED_BIT),
 };
 
+#include <linux/netfilter_ipv4/ip_conntrack_tcp.h>
+#include <linux/netfilter_ipv4/ip_conntrack_icmp.h>
+
+/* per conntrack: protocol private data */
+union ip_conntrack_proto {
+	/* insert conntrack proto private data here */
+	struct ip_ct_tcp tcp;
+	struct ip_ct_icmp icmp;
+};
+
+union ip_conntrack_expect_proto {
+	/* insert expect proto private data here */
+};
+
+/* Add protocol helper include file here */
+#include <linux/netfilter_ipv4/ip_conntrack_ftp.h>
+#include <linux/netfilter_ipv4/ip_conntrack_irc.h>
+
+/* per expectation: application helper private data */
+union ip_conntrack_expect_help {
+	/* insert conntrack helper private data (expect) here */
+	struct ip_ct_ftp_expect exp_ftp_info;
+	struct ip_ct_irc_expect exp_irc_info;
+
+#ifdef CONFIG_IP_NF_NAT_NEEDED
+	union {
+		/* insert nat helper private data (expect) here */
+	} nat;
+#endif
+};
+
+/* per conntrack: application helper private data */
+union ip_conntrack_help {
+	/* insert conntrack helper private data (master) here */
+	struct ip_ct_ftp_master ct_ftp_info;
+	struct ip_ct_irc_master ct_irc_info;
+};
+
+#ifdef CONFIG_IP_NF_NAT_NEEDED
+#include <linux/netfilter_ipv4/ip_nat.h>
+
+/* per conntrack: nat application helper private data */
+union ip_conntrack_nat_help {
+	/* insert nat helper private data here */
+};
+#endif
+
 #ifdef __KERNEL__
 
 #include <linux/types.h>
 #include <linux/skbuff.h>
-#include <linux/netfilter_ipv4/ip_conntrack_tcp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_icmp.h>
 
 #ifdef CONFIG_NF_DEBUG
 #define IP_NF_ASSERT(x)							\
@@ -63,19 +108,14 @@ do {									\
 #define IP_NF_ASSERT(x)
 #endif
 
-#ifdef CONFIG_IP_NF_NAT_NEEDED
-#include <linux/netfilter_ipv4/ip_nat.h>
-#endif
-
-/* Add protocol helper include file here */
-#include <linux/netfilter_ipv4/ip_conntrack_ftp.h>
-#include <linux/netfilter_ipv4/ip_conntrack_irc.h>
-
 struct ip_conntrack_expect
 {
 	/* Internal linked list (global expectation list) */
 	struct list_head list;
 
+	/* reference count */
+	atomic_t use;
+
 	/* expectation list for this master */
 	struct list_head expected_list;
 
@@ -103,19 +143,12 @@ struct ip_conntrack_expect
 	/* At which sequence number did this expectation occur */
 	u_int32_t seq;
   
-	union {
-		/* insert conntrack helper private data (expect) here */
-		struct ip_ct_ftp_expect exp_ftp_info;
-		struct ip_ct_irc_expect exp_irc_info;
-  
-#ifdef CONFIG_IP_NF_NAT_NEEDED
- 		union {
-			/* insert nat helper private data (expect) here */
-		} nat;
-#endif
-	} help;
+	union ip_conntrack_expect_proto proto;
+
+	union ip_conntrack_expect_help help;
 };
 
+#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
 struct ip_conntrack
 {
 	/* Usage count in here is 1 for hash table/destruct timer, 1 per skb,
@@ -150,23 +183,14 @@ struct ip_conntrack
 
 	/* Storage reserved for other modules: */
 
-	union {
-		struct ip_ct_tcp tcp;
-		struct ip_ct_icmp icmp;
-	} proto;
+	union ip_conntrack_proto proto;
 
-	union {
-		/* insert conntrack helper private data (master) here */
-		struct ip_ct_ftp_master ct_ftp_info;
-		struct ip_ct_irc_master ct_irc_info;
-	} help;
+	union ip_conntrack_help help;
 
 #ifdef CONFIG_IP_NF_NAT_NEEDED
 	struct {
 		struct ip_nat_info info;
-		union {
-			/* insert nat helper private data here */
-		} help;
+		union ip_conntrack_nat_help help;
 #if defined(CONFIG_IP_NF_TARGET_MASQUERADE) || \
 	defined(CONFIG_IP_NF_TARGET_MASQUERADE_MODULE)
 		int masq_index;
@@ -195,6 +219,16 @@ ip_conntrack_tuple_taken(const struct ip_conntrack_tuple *tuple,
 extern struct ip_conntrack *
 ip_conntrack_get(struct sk_buff *skb, enum ip_conntrack_info *ctinfo);
 
+/* decrement reference count on a conntrack */
+extern inline void ip_conntrack_put(struct ip_conntrack *ct);
+
+/* find unconfirmed expectation based on tuple */
+struct ip_conntrack_expect *
+ip_conntrack_expect_find_get(const struct ip_conntrack_tuple *tuple);
+
+/* decrement reference count on an expectation */
+void ip_conntrack_expect_put(struct ip_conntrack_expect *exp);
+
 extern struct module *ip_conntrack_module;
 
 extern int invert_tuplepr(struct ip_conntrack_tuple *inverse,

include/linux/netfilter_ipv4/ip_conntrack_core.h

@@ -45,7 +45,7 @@ static inline int ip_conntrack_confirm(struct sk_buff *skb)
 }
 
 extern struct list_head *ip_conntrack_hash;
-extern struct list_head expect_list;
+extern struct list_head ip_conntrack_expect_list;
 DECLARE_RWLOCK_EXTERN(ip_conntrack_lock);
 #endif /* _IP_CONNTRACK_CORE_H */
 

include/linux/netfilter_ipv4/ip_conntrack_ftp.h

@@ -2,9 +2,7 @@
 #define _IP_CONNTRACK_FTP_H
 /* FTP tracking. */
 
-#ifndef __KERNEL__
-#error Only in kernel.
-#endif
+#ifdef __KERNEL__
 
 #include <linux/netfilter_ipv4/lockhelp.h>
 
@@ -13,6 +11,8 @@ DECLARE_LOCK_EXTERN(ip_ftp_lock);
 
 #define FTP_PORT	21
 
+#endif /* __KERNEL__ */
+
 enum ip_ct_ftp_type
 {
 	/* PORT command from client */

include/linux/netfilter_ipv4/ip_conntrack_irc.h

@@ -14,22 +14,6 @@
 #ifndef _IP_CONNTRACK_IRC_H
 #define _IP_CONNTRACK_IRC_H
 
-#ifndef __KERNEL__
-#error Only in kernel.
-#endif
-
-#include <linux/netfilter_ipv4/lockhelp.h>
-
-#define IRC_PORT	6667
-
-struct dccproto {
-	char* match;
-	int matchlen;
-};
-
-/* Protects irc part of conntracks */
-DECLARE_LOCK_EXTERN(ip_irc_lock);
-
 /* We record seq number and length of irc ip/port text here: all in
    host order. */
 
@@ -46,4 +30,21 @@ struct ip_ct_irc_expect
 struct ip_ct_irc_master {
 };
 
+
+#ifdef __KERNEL__
+
+#include <linux/netfilter_ipv4/lockhelp.h>
+
+#define IRC_PORT	6667
+
+struct dccproto {
+	char* match;
+	int matchlen;
+};
+
+/* Protects irc part of conntracks */
+DECLARE_LOCK_EXTERN(ip_irc_lock);
+
+#endif /* __KERNEL__ */
+
 #endif /* _IP_CONNTRACK_IRC_H */

include/linux/netfilter_ipv4/ip_conntrack_tcp.h

@@ -2,10 +2,6 @@
 #define _IP_CONNTRACK_TCP_H
 /* TCP tracking. */
 
-#ifndef __KERNEL__
-#error Only in kernel.
-#endif
-
 enum tcp_conntrack {
 	TCP_CONNTRACK_NONE,
 	TCP_CONNTRACK_ESTABLISHED,

include/linux/netfilter_ipv4/ip_nat.h

@@ -60,22 +60,6 @@ struct ip_nat_multi_range
 	struct ip_nat_range range[1];
 };
 
-#ifdef __KERNEL__
-#include <linux/list.h>
-#include <linux/netfilter_ipv4/lockhelp.h>
-
-/* Protects NAT hash tables, and NAT-private part of conntracks. */
-DECLARE_RWLOCK_EXTERN(ip_nat_lock);
-
-/* Hashes for by-source and IP/protocol. */
-struct ip_nat_hash
-{
-	struct list_head list;
-
-	/* conntrack we're embedded in: NULL if not in hash. */
-	struct ip_conntrack *conntrack;
-};
-
 /* Worst case: local-out manip + 1 post-routing, and reverse dirn. */
 #define IP_NAT_MAX_MANIPS (2*3)
 
@@ -93,7 +77,23 @@ struct ip_nat_info_manip
 	/* Manipulations to occur at each conntrack in this dirn. */
 	struct ip_conntrack_manip manip;
 };
-	
+
+#ifdef __KERNEL__
+#include <linux/list.h>
+#include <linux/netfilter_ipv4/lockhelp.h>
+
+/* Protects NAT hash tables, and NAT-private part of conntracks. */
+DECLARE_RWLOCK_EXTERN(ip_nat_lock);
+
+/* Hashes for by-source and IP/protocol. */
+struct ip_nat_hash
+{
+	struct list_head list;
+
+	/* conntrack we're embedded in: NULL if not in hash. */
+	struct ip_conntrack *conntrack;
+};
+
 /* The structure embedded in the conntrack structure. */
 struct ip_nat_info
 {

include/linux/netfilter_ipv4/ipt_DSCP.h

+/* iptables module for setting the IPv4 DSCP field
+ *
+ * (C) 2002 Harald Welte <laforge@gnumonks.org>
+ * based on ipt_FTOS.c (C) 2000 by Matthew G. Marsh <mgm@paktronix.com>
+ * This software is distributed under GNU GPL v2, 1991
+ * 
+ * See RFC2474 for a description of the DSCP field within the IP Header.
+ *
+ * ipt_DSCP.h,v 1.7 2002/03/14 12:03:13 laforge Exp
+*/
+#ifndef _IPT_DSCP_TARGET_H
+#define _IPT_DSCP_TARGET_H
+#include <linux/netfilter_ipv4/ipt_dscp.h>
+
+/* target info */
+struct ipt_DSCP_info {
+	u_int8_t dscp;
+};
+
+#endif /* _IPT_DSCP_TARGET_H */

include/linux/netfilter_ipv4/ipt_ECN.h

+/* Header file for iptables ipt_ECN target
+ *
+ * (C) 2002 by Harald Welte <laforge@gnumonks.org>
+ *
+ * This software is distributed under GNU GPL v2, 1991
+ * 
+ * ipt_ECN.h,v 1.3 2002/05/29 12:17:40 laforge Exp
+*/
+#ifndef _IPT_ECN_TARGET_H
+#define _IPT_ECN_TARGET_H
+#include <linux/netfilter_ipv4/ipt_DSCP.h>
+
+#define IPT_ECN_IP_MASK	(~IPT_DSCP_MASK)
+
+#define IPT_ECN_OP_SET_IP	0x01	/* set ECN bits of IPv4 header */
+#define IPT_ECN_OP_SET_ECE	0x10	/* set ECE bit of TCP header */
+#define IPT_ECN_OP_SET_CWR	0x20	/* set CWR bit of TCP header */
+
+#define IPT_ECN_OP_MASK		0xce
+
+struct ipt_ECN_info {
+	u_int8_t operation;	/* bitset of operations */
+	u_int8_t ip_ect;	/* ECT codepoint of IPv4 header, pre-shifted */
+	union {
+		struct {
+			u_int8_t ece:1, cwr:1; /* TCP ECT bits */
+		} tcp;
+	} proto;
+};
+
+#endif /* _IPT_ECN_TARGET_H */

include/linux/netfilter_ipv4/ipt_conntrack.h

+/* Header file for kernel module to match connection tracking information.
+ * GPL (C) 2001  Marc Boucher (marc@mbsi.ca).
+ */
+
+#ifndef _IPT_CONNTRACK_H
+#define _IPT_CONNTRACK_H
+
+#define IPT_CONNTRACK_STATE_BIT(ctinfo) (1 << ((ctinfo)%IP_CT_IS_REPLY+1))
+#define IPT_CONNTRACK_STATE_INVALID (1 << 0)
+
+#define IPT_CONNTRACK_STATE_SNAT (1 << (IP_CT_NUMBER + 1))
+#define IPT_CONNTRACK_STATE_DNAT (1 << (IP_CT_NUMBER + 2))
+
+/* flags, invflags: */
+#define IPT_CONNTRACK_STATE	0x01
+#define IPT_CONNTRACK_PROTO	0x02
+#define IPT_CONNTRACK_ORIGSRC	0x04
+#define IPT_CONNTRACK_ORIGDST	0x08
+#define IPT_CONNTRACK_REPLSRC	0x10
+#define IPT_CONNTRACK_REPLDST	0x20
+#define IPT_CONNTRACK_STATUS	0x40
+#define IPT_CONNTRACK_EXPIRES	0x80
+
+struct ipt_conntrack_info
+{
+	unsigned int statemask, statusmask;
+
+	struct ip_conntrack_tuple tuple[IP_CT_DIR_MAX];
+	struct in_addr sipmsk[IP_CT_DIR_MAX], dipmsk[IP_CT_DIR_MAX];
+
+	unsigned long expires_min, expires_max;
+
+	/* Flags word */
+	u_int8_t flags;
+	/* Inverse flags */
+	u_int8_t invflags;
+};
+#endif /*_IPT_CONNTRACK_H*/

include/linux/netfilter_ipv4/ipt_dscp.h

+/* iptables module for matching the IPv4 DSCP field
+ *
+ * (C) 2002 Harald Welte <laforge@gnumonks.org>
+ * This software is distributed under GNU GPL v2, 1991
+ * 
+ * See RFC2474 for a description of the DSCP field within the IP Header.
+ *
+ * ipt_dscp.h,v 1.3 2002/08/05 19:00:21 laforge Exp
+*/
+#ifndef _IPT_DSCP_H
+#define _IPT_DSCP_H
+
+#define IPT_DSCP_MASK	0xfc	/* 11111100 */
+#define IPT_DSCP_SHIFT	2
+#define IPT_DSCP_MAX	0x3f	/* 00111111 */
+
+/* match info */
+struct ipt_dscp_info {
+	u_int8_t dscp;
+	u_int8_t invert;
+};
+
+#endif /* _IPT_DSCP_H */

include/linux/netfilter_ipv4/ipt_ecn.h

+/* iptables module for matching the ECN header in IPv4 and TCP header
+ *
+ * (C) 2002 Harald Welte <laforge@gnumonks.org>
+ *
+ * This software is distributed under GNU GPL v2, 1991
+ * 
+ * ipt_ecn.h,v 1.4 2002/08/05 19:39:00 laforge Exp
+*/
+#ifndef _IPT_ECN_H
+#define _IPT_ECN_H
+#include <linux/netfilter_ipv4/ipt_dscp.h>
+
+#define IPT_ECN_IP_MASK	(~IPT_DSCP_MASK)
+
+#define IPT_ECN_OP_MATCH_IP	0x01
+#define IPT_ECN_OP_MATCH_ECE	0x10
+#define IPT_ECN_OP_MATCH_CWR	0x20
+
+#define IPT_ECN_OP_MATCH_MASK	0xce
+
+/* match info */
+struct ipt_ecn_info {
+	u_int8_t operation;
+	u_int8_t invert;
+	u_int8_t ip_ect;
+	union {
+		struct {
+			u_int8_t ect;
+		} tcp;
+	} proto;
+};
+
+#endif /* _IPT_ECN_H */

include/linux/netfilter_ipv4/ipt_helper.h

+#ifndef _IPT_HELPER_H
+#define _IPT_HELPER_H
+
+struct ipt_helper_info {
+	int invert;
+	char name[30];
+};
+#endif /* _IPT_HELPER_H */

include/linux/netfilter_ipv4/ipt_owner.h

@@ -6,12 +6,14 @@
 #define IPT_OWNER_GID	0x02
 #define IPT_OWNER_PID	0x04
 #define IPT_OWNER_SID	0x08
+#define IPT_OWNER_COMM	0x10
 
 struct ipt_owner_info {
     uid_t uid;
     gid_t gid;
     pid_t pid;
     pid_t sid;
+    char comm[16];
     u_int8_t match, invert;	/* flags */
 };
 

include/linux/netfilter_ipv4/ipt_pkttype.h

+#ifndef _IPT_PKTTYPE_H
+#define _IPT_PKTTYPE_H
+
+struct ipt_pkttype_info {
+	int	pkttype;
+	int	invert;
+};
+#endif /*_IPT_PKTTYPE_H*/

include/linux/netfilter_ipv6/ip6t_length.h

+#ifndef _IP6T_LENGTH_H
+#define _IP6T_LENGTH_H
+
+struct ip6t_length_info {
+	u_int16_t  min, max;
+	u_int8_t   invert;
+};
+
+#endif /*_IP6T_LENGTH_H*/
+	

include/net/llc_actn.h

@@ -24,25 +24,25 @@
 
 /* All station state event action functions look like this */
 typedef int (*llc_station_action_t)(struct llc_station *station,
-				    struct llc_station_state_ev *ev);
+				    struct sk_buff *skb);
 extern int llc_station_ac_start_ack_timer(struct llc_station *station,
-					  struct llc_station_state_ev *ev);
+					  struct sk_buff *skb);
 extern int llc_station_ac_set_retry_cnt_0(struct llc_station *station,
-					  struct llc_station_state_ev *ev);
+					  struct sk_buff *skb);
 extern int llc_station_ac_inc_retry_cnt_by_1(struct llc_station *station,
-					     struct llc_station_state_ev *ev);
+					     struct sk_buff *skb);
 extern int llc_station_ac_set_xid_r_cnt_0(struct llc_station *station,
-					  struct llc_station_state_ev *ev);
+					  struct sk_buff *skb);
 extern int llc_station_ac_inc_xid_r_cnt_by_1(struct llc_station *station,
-					     struct llc_station_state_ev *ev);
+					     struct sk_buff *skb);
 extern int llc_station_ac_send_null_dsap_xid_c(struct llc_station *station,
-					       struct llc_station_state_ev *ev);
+					       struct sk_buff *skb);
 extern int llc_station_ac_send_xid_r(struct llc_station *station,
-				     struct llc_station_state_ev *ev);
+				     struct sk_buff *skb);
 extern int llc_station_ac_send_test_r(struct llc_station *station,
-				      struct llc_station_state_ev *ev);
+				      struct sk_buff *skb);
 extern int llc_station_ac_report_status(struct llc_station *station,
-					struct llc_station_state_ev *ev);
+					struct sk_buff *skb);
 extern int llc_station_ac_report_status(struct llc_station *station,
-					struct llc_station_state_ev *ev);
+					struct sk_buff *skb);
 #endif /* LLC_ACTN_H */

include/net/llc_conn.h

@@ -136,12 +136,10 @@ extern void llc_sock_reset(struct sock *sk);
 extern int llc_sock_init(struct sock *sk);
 
 /* Access to a connection */
-extern struct llc_conn_state_ev *llc_conn_alloc_ev(struct sock *sk);
-extern int llc_conn_send_ev(struct sock *sk, struct llc_conn_state_ev *ev);
+extern int llc_conn_send_ev(struct sock *sk, struct sk_buff *skb);
 extern void llc_conn_send_pdu(struct sock *sk, struct sk_buff *skb);
-extern void llc_conn_rtn_pdu(struct sock *sk, struct sk_buff *skb,
-			     struct llc_conn_state_ev *ev);
-extern void llc_conn_free_ev(struct llc_conn_state_ev *ev);
+extern void llc_conn_rtn_pdu(struct sock *sk, struct sk_buff *skb);
+extern void llc_conn_free_ev(struct sk_buff *skb);
 extern void llc_conn_resend_i_pdu_as_cmd(struct sock *sk, u8 nr,
 					 u8 first_p_bit);
 extern void llc_conn_resend_i_pdu_as_rsp(struct sock *sk, u8 nr,

include/net/llc_evnt.h

@@ -58,7 +58,7 @@ union llc_stat_ev_if {
 	struct llc_stat_ev_simple_if  a;	/* 'a' for simple, easy ... */
 	struct llc_stat_ev_prim_if    prim;
 	struct llc_stat_ev_pdu_if     pdu;
-	struct llc_stat_ev_tmr_if   tmr;
+	struct llc_stat_ev_tmr_if     tmr;
 	struct llc_stat_ev_rpt_sts_if rsts;	/* report status */
 };
 
@@ -68,26 +68,32 @@ struct llc_station_state_ev {
 	struct list_head	node; /* node in station->ev_q.list */
 };
 
+static __inline__ struct llc_station_state_ev *
+					llc_station_ev(struct sk_buff *skb)
+{
+	return (struct llc_station_state_ev *)skb->cb;
+}
+
 typedef int (*llc_station_ev_t)(struct llc_station *station,
-				struct llc_station_state_ev *ev);
+				struct sk_buff *skb);
 
 extern int llc_stat_ev_enable_with_dup_addr_check(struct llc_station *station,
-					       struct llc_station_state_ev *ev);
+						  struct sk_buff *skb);
 extern int llc_stat_ev_enable_without_dup_addr_check(struct llc_station *station,
-					       struct llc_station_state_ev *ev);
+						     struct sk_buff *skb);
 extern int llc_stat_ev_ack_tmr_exp_lt_retry_cnt_max_retry(struct llc_station *
 									station,
-					       struct llc_station_state_ev *ev);
+							  struct sk_buff *skb);
 extern int llc_stat_ev_ack_tmr_exp_eq_retry_cnt_max_retry(struct llc_station *station,
-					       struct llc_station_state_ev *ev);
+							  struct sk_buff *skb);
 extern int llc_stat_ev_rx_null_dsap_xid_c(struct llc_station *station,
-					  struct llc_station_state_ev *ev);
+					  struct sk_buff *skb);
 extern int llc_stat_ev_rx_null_dsap_0_xid_r_xid_r_cnt_eq(struct llc_station *station,
-					       struct llc_station_state_ev *ev);
+							 struct sk_buff *skb);
 extern int llc_stat_ev_rx_null_dsap_1_xid_r_xid_r_cnt_eq(struct llc_station *station,
-					       struct llc_station_state_ev *ev);
+							 struct sk_buff *skb);
 extern int llc_stat_ev_rx_null_dsap_test_c(struct llc_station *station,
-					   struct llc_station_state_ev *ev);
+					   struct sk_buff *skb);
 extern int llc_stat_ev_disable_req(struct llc_station *station,
-				       struct llc_station_state_ev *ev);
+				   struct sk_buff *skb);
 #endif /* LLC_EVNT_H */

include/net/llc_mac.h

@@ -20,4 +20,15 @@ extern struct net_device *mac_dev_peer(struct net_device *current_dev,
 extern int llc_pdu_router(struct llc_sap *sap, struct sock *sk,
 			  struct sk_buff *skb, u8 type);
 extern u16 lan_hdrs_init(struct sk_buff *skb, u8 *sa, u8 *da);
+
+static __inline__ void llc_set_backlog_type(struct sk_buff *skb, char type)
+{
+	skb->cb[sizeof(skb->cb) - 1] = type;
+}
+
+static __inline__ char llc_backlog_type(struct sk_buff *skb)
+{
+	return skb->cb[sizeof(skb->cb) - 1];
+}
+
 #endif /* LLC_MAC_H */

include/net/llc_main.h

@@ -19,35 +19,40 @@
 #define LLC_ACK_TIME		 3
 #define LLC_REJ_TIME		 3
 #define LLC_BUSY_TIME		 3
-#define LLC_SENDACK_TIME	50
 #define LLC_DEST_INVALID	 0	/* Invalid LLC PDU type */
 #define LLC_DEST_SAP		 1	/* Type 1 goes here */
 #define LLC_DEST_CONN		 2	/* Type 2 goes here */
 
-/* LLC Layer global default parameters */
-
-#define LLC_GLOBAL_DEFAULT_MAX_NBR_SAPS		4
-#define LLC_GLOBAL_DEFAULT_MAX_NBR_CONNS	64
-
-/* LLC station component (SAP and connection resource manager) */
-/* Station component; one per adapter */
+/**
+ * struct llc_station - LLC station component
+ *
+ * SAP and connection resource manager, one per adapter.
+ *
+ * @state - state of station
+ * @xid_r_count - XID response PDU counter
+ * @ack_tmr_running - 1 or 0
+ * @mac_sa - MAC source address
+ * @sap_list - list of related SAPs
+ * @ev_q - events entering state mach.
+ * @mac_pdu_q - PDUs ready to send to MAC
+ */
 struct llc_station {
-	u8     state;			/* state of station */
-	u8     xid_r_count;		/* XID response PDU counter */
-	struct timer_list ack_timer;
-	u8     ack_tmr_running;		/* 1 or 0 */
-	u8     retry_count;
-	u8     maximum_retry;
-	u8     mac_sa[6];		/* MAC source address */
+	u8			    state;
+	u8			    xid_r_count;
+	struct timer_list	    ack_timer;
+	u8			    ack_tmr_running;
+	u8			    retry_count;
+	u8			    maximum_retry;
+	u8			    mac_sa[6];
 	struct {
-		spinlock_t	 lock;
-		struct list_head list;
-	} sap_list;			/* list of related SAPs */
+		spinlock_t	    lock;
+		struct list_head    list;
+	} sap_list;
 	struct {
-		spinlock_t	 lock;
-		struct list_head list;
-	} ev_q;				/* events entering state mach. */
-	struct sk_buff_head mac_pdu_q;	/* PDUs ready to send to MAC */
+		struct sk_buff_head list;
+		spinlock_t	    lock;
+	} ev_q;
+	struct sk_buff_head	    mac_pdu_q;
 };
 struct llc_station_state_ev;
 
@@ -56,10 +61,8 @@ extern void llc_sap_save(struct llc_sap *sap);
 extern void llc_free_sap(struct llc_sap *sap);
 extern struct llc_sap *llc_sap_find(u8 lsap);
 extern struct llc_station *llc_station_get(void);
-extern struct llc_station_state_ev *
-			     llc_station_alloc_ev(struct llc_station *station);
 extern void llc_station_send_ev(struct llc_station *station,
-				struct llc_station_state_ev *ev);
+				struct sk_buff *skb);
 extern void llc_station_send_pdu(struct llc_station *station,
 				 struct sk_buff *skb);
 extern struct sk_buff *llc_alloc_frame(void);

include/net/llc_s_ac.h

@@ -23,25 +23,17 @@
 #define SAP_ACT_TEST_IND	9
 
 /* All action functions must look like this */
-typedef int (*llc_sap_action_t)(struct llc_sap *sap,
-				struct llc_sap_state_ev *ev);
+typedef int (*llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
 
 extern int llc_sap_action_unitdata_ind(struct llc_sap *sap,
-				       struct llc_sap_state_ev *ev);
-extern int llc_sap_action_send_ui(struct llc_sap *sap,
-				  struct llc_sap_state_ev *ev);
-extern int llc_sap_action_send_xid_c(struct llc_sap *sap,
-				     struct llc_sap_state_ev *ev);
-extern int llc_sap_action_send_xid_r(struct llc_sap *sap,
-				     struct llc_sap_state_ev *ev);
-extern int llc_sap_action_send_test_c(struct llc_sap *sap,
-				      struct llc_sap_state_ev *ev);
-extern int llc_sap_action_send_test_r(struct llc_sap *sap,
-				      struct llc_sap_state_ev *ev);
+				       struct sk_buff *skb);
+extern int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_action_send_xid_c(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_action_send_xid_r(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_action_send_test_c(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_action_send_test_r(struct llc_sap *sap, struct sk_buff *skb);
 extern int llc_sap_action_report_status(struct llc_sap *sap,
-					struct llc_sap_state_ev *ev);
-extern int llc_sap_action_xid_ind(struct llc_sap *sap,
-				  struct llc_sap_state_ev *ev);
-extern int llc_sap_action_test_ind(struct llc_sap *sap,
-				   struct llc_sap_state_ev *ev);
+					struct sk_buff *skb);
+extern int llc_sap_action_xid_ind(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_action_test_ind(struct llc_sap *sap, struct sk_buff *skb);
 #endif /* LLC_S_AC_H */

include/net/llc_s_ev.h

@@ -11,6 +11,9 @@
  *
  * See the GNU General Public License for more details.
  */
+
+#include <linux/skbuff.h>
+
 /* Defines SAP component events */
 /* Types of events (possible values in 'ev->type') */
 #define LLC_SAP_EV_TYPE_SIMPLE		1
@@ -45,9 +48,8 @@ struct llc_sap_ev_prim_if {
 };
 
 struct llc_sap_ev_pdu_if {
-	u8		   ev;
-	u8		   reason;
-	struct sk_buff *skb;
+	u8 ev;
+	u8 reason;
 };
 
 struct llc_sap_ev_tmr_if {
@@ -75,27 +77,24 @@ struct llc_sap_state_ev {
 	union llc_sap_ev_if	  data;
 };
 
+static __inline__ struct llc_sap_state_ev *llc_sap_ev(struct sk_buff *skb)
+{
+	return (struct llc_sap_state_ev *)skb->cb;
+}
+
 struct llc_sap;
 
-typedef int (*llc_sap_ev_t)(struct llc_sap *sap, struct llc_sap_state_ev *ev);
-
-extern int llc_sap_ev_activation_req(struct llc_sap *sap,
-				     struct llc_sap_state_ev *ev);
-extern int llc_sap_ev_rx_ui(struct llc_sap *sap, struct llc_sap_state_ev *ev);
-extern int llc_sap_ev_unitdata_req(struct llc_sap *sap,
-				   struct llc_sap_state_ev *ev);
-extern int llc_sap_ev_xid_req(struct llc_sap *sap,
-			      struct llc_sap_state_ev *ev);
-extern int llc_sap_ev_rx_xid_c(struct llc_sap *sap,
-			       struct llc_sap_state_ev *ev);
-extern int llc_sap_ev_rx_xid_r(struct llc_sap *sap,
-			       struct llc_sap_state_ev *ev);
-extern int llc_sap_ev_test_req(struct llc_sap *sap,
-			       struct llc_sap_state_ev *ev);
-extern int llc_sap_ev_rx_test_c(struct llc_sap *sap,
-				struct llc_sap_state_ev *ev);
-extern int llc_sap_ev_rx_test_r(struct llc_sap *sap,
-				struct llc_sap_state_ev *ev);
+typedef int (*llc_sap_ev_t)(struct llc_sap *sap, struct sk_buff *skb);
+
+extern int llc_sap_ev_activation_req(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_ev_rx_ui(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_ev_unitdata_req(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_ev_xid_req(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_ev_rx_xid_c(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_ev_rx_xid_r(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_ev_test_req(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_ev_rx_test_c(struct llc_sap *sap, struct sk_buff *skb);
+extern int llc_sap_ev_rx_test_r(struct llc_sap *sap, struct sk_buff *skb);
 extern int llc_sap_ev_deactivation_req(struct llc_sap *sap,
-				       struct llc_sap_state_ev *ev);
+				       struct sk_buff *skb);
 #endif /* LLC_S_EV_H */

include/net/llc_s_st.h

@@ -15,7 +15,8 @@
 
 #define LLC_SAP_STATE_INACTIVE	1
 #define LLC_SAP_STATE_ACTIVE	2
-#define LLC_NBR_SAP_STATES	2       /* size of state table */
+#define LLC_NR_SAP_STATES	2       /* size of state table */
+
 /* structures and types */
 /* SAP state table structure */
 struct llc_sap_state_trans {
@@ -25,10 +26,10 @@ struct llc_sap_state_trans {
 };
 
 struct llc_sap_state {
-    u8				 curr_state;
-    struct llc_sap_state_trans **transitions;
+	u8			   curr_state;
+	struct llc_sap_state_trans **transitions;
 };
 
 /* only access to SAP state table */
-extern struct llc_sap_state llc_sap_state_table[LLC_NBR_SAP_STATES];
+extern struct llc_sap_state llc_sap_state_table[LLC_NR_SAP_STATES];
 #endif /* LLC_S_ST_H */

include/net/llc_sap.h

@@ -49,9 +49,7 @@ struct llc_sap_state_ev;
 
 extern void llc_sap_assign_sock(struct llc_sap *sap, struct sock *sk);
 extern void llc_sap_unassign_sock(struct llc_sap *sap, struct sock *sk);
-extern void llc_sap_send_ev(struct llc_sap *sap, struct llc_sap_state_ev *ev);
-extern void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb,
-			    struct llc_sap_state_ev *ev);
+extern void llc_sap_send_ev(struct llc_sap *sap, struct sk_buff *skb);
+extern void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb);
 extern void llc_sap_send_pdu(struct llc_sap *sap, struct sk_buff *skb);
-extern struct llc_sap_state_ev *llc_sap_alloc_ev(struct llc_sap *sap);
 #endif /* LLC_SAP_H */

net/ipv4/ipconfig.c

@@ -26,6 +26,9 @@
  *
  *  Merged changes from 2.2.19 into 2.4.3
  *              -- Eric Biederman <ebiederman@lnxi.com>, 22 April Aug 2001
+ *
+ *  Multipe Nameservers in /proc/net/pnp
+ *              --  Josef Siemes <jsiemes@web.de>, Aug 2002
  */
 
 #include <linux/config.h>
@@ -91,6 +94,8 @@
 #define CONF_TIMEOUT_RANDOM	(HZ)	/* Maximum amount of randomization */
 #define CONF_TIMEOUT_MULT	*7/4	/* Rate of timeout growth */
 #define CONF_TIMEOUT_MAX	(HZ*30)	/* Maximum allowed timeout */
+#define CONF_NAMESERVERS_MAX   3       /* Maximum number of nameservers  
+                                           - '3' from resolv.h */
 
 
 /*
@@ -132,7 +137,7 @@ u8 root_server_path[256] __initdata = { 0, };	/* Path to mount as root */
 /* Persistent data: */
 
 int ic_proto_used;			/* Protocol used, if any */
-u32 ic_nameserver = INADDR_NONE;	/* DNS Server IP address */
+u32 ic_nameservers[CONF_NAMESERVERS_MAX]; /* DNS Server IP addresses */
 u8 ic_domain[64];		/* DNS (not NIS) domain name */
 
 /*
@@ -625,6 +630,11 @@ static void __init ic_bootp_init_ext(u8 *e)
  */
 static inline void ic_bootp_init(void)
 {
+	int i;
+
+	for (i = 0; i < CONF_NAMESERVERS_MAX; i++)
+		ic_nameservers[i] = INADDR_NONE;
+
 	dev_add_pack(&bootp_packet_type);
 }
 
@@ -729,6 +739,9 @@ static int __init ic_bootp_string(char *dest, char *src, int len, int max)
  */
 static void __init ic_do_bootp_ext(u8 *ext)
 {
+       u8 servers;
+       int i;
+
 #ifdef IPCONFIG_DEBUG
 	u8 *c;
 
@@ -748,8 +761,13 @@ static void __init ic_do_bootp_ext(u8 *ext)
 				memcpy(&ic_gateway, ext+1, 4);
 			break;
 		case 6:		/* DNS server */
-			if (ic_nameserver == INADDR_NONE)
-				memcpy(&ic_nameserver, ext+1, 4);
+			servers= *ext/4;
+			if (servers > CONF_NAMESERVERS_MAX)
+				servers = CONF_NAMESERVERS_MAX;
+			for (i = 0; i < servers; i++) {
+				if (ic_nameservers[i] == INADDR_NONE)
+					memcpy(&ic_nameservers[i], ext+1+4*i, 4);
+			}
 			break;
 		case 12:	/* Host name */
 			ic_bootp_string(system_utsname.nodename, ext+1, *ext, __NEW_UTS_LEN);
@@ -914,8 +932,8 @@ static int __init ic_bootp_recv(struct sk_buff *skb, struct net_device *dev, str
 	ic_servaddr = b->server_ip;
 	if (ic_gateway == INADDR_NONE && b->relay_ip)
 		ic_gateway = b->relay_ip;
-	if (ic_nameserver == INADDR_NONE)
-		ic_nameserver = ic_servaddr;
+	if (ic_nameservers[0] == INADDR_NONE)
+		ic_nameservers[0] = ic_servaddr;
 	ic_got_reply = IC_BOOTP;
 
 drop:
@@ -1078,6 +1096,7 @@ static int pnp_get_info(char *buffer, char **start,
 			off_t offset, int length)
 {
 	int len;
+       int i;
 
 	if (ic_proto_used & IC_PROTO)
 	    sprintf(buffer, "#PROTO: %s\n",
@@ -1090,9 +1109,12 @@ static int pnp_get_info(char *buffer, char **start,
 	if (ic_domain[0])
 		len += sprintf(buffer + len,
 			       "domain %s\n", ic_domain);
-	if (ic_nameserver != INADDR_NONE)
-		len += sprintf(buffer + len,
-			       "nameserver %u.%u.%u.%u\n", NIPQUAD(ic_nameserver));
+	for (i = 0; i < CONF_NAMESERVERS_MAX; i++) {
+		if (ic_nameservers[i] != INADDR_NONE)
+			len += sprintf(buffer + len,
+				       "nameserver %u.%u.%u.%u\n",
+				       NIPQUAD(ic_nameservers[i]));
+	}
 
 	if (offset > len)
 		offset = len;

net/ipv4/netfilter/Config.help

@@ -56,6 +56,16 @@ CONFIG_IP_NF_MATCH_LIMIT
   If you want to compile it as a module, say M here and read
   <file:Documentation/modules.txt>.  If unsure, say `N'.
 
+CONFIG_IP_NF_MATCH_PKTTYPE
+  This patch allows you to match packet in accrodance
+  to its "class", eg. BROADCAST, MULTICAST, ...
+  
+  Typical usage:
+  iptables -A INPUT -m pkttype --pkt-type broadcast -j LOG
+  
+  If you want to compile it as a module, say M here and read
+  Documentation/modules.txt.  If unsure, say `N'.
+
 CONFIG_IP_NF_MATCH_MAC
   MAC matching allows you to match packets based on the source
   Ethernet address of the packet.
@@ -100,6 +110,22 @@ CONFIG_IP_NF_MATCH_AH_ESP
   If you want to compile it as a module, say M here and read
   Documentation/modules.txt.  If unsure, say `N'.
 
+CONFIG_IP_NF_TARGET_DSCP
+  This option adds a `DSCP' match, which allows you to match against
+  the IPv4 header DSCP field (DSCP codepoint).
+
+  The DSCP codepoint can have any value between 0x0 and 0x4f.
+
+  If you want to compile it as a module, say M here and read
+  Documentation/modules.txt.  If unsure, say `N'.
+
+CONFIG_IP_NF_MATCH_ECN
+  This option adds a `ECN' match, which allows you to match against
+  the IPv4 and TCP header ECN fields.
+
+  If you want to compile it as a module, say M here and read
+  Documentation/modules.txt.  If unsure, say `N'.
+
 CONFIG_IP_NF_MATCH_TOS
   TOS matching allows you to match packets based on the Type Of
   Service fields of the IP packet.
@@ -107,6 +133,16 @@ CONFIG_IP_NF_MATCH_TOS
   If you want to compile it as a module, say M here and read
   <file:Documentation/modules.txt>.  If unsure, say `N'.
 
+CONFIG_IP_NF_MATCH_CONNTRACK
+  This is a general conntrack match module, a superset of the state match.
+
+  It allows matching on additional conntrack information, which is
+  useful in complex configurations, such as NAT gateways with multiple
+  internet links or tunnels.
+
+  If you want to compile it as a module, say M here and read
+  Documentation/modules.txt.  If unsure, say `N'.
+
 CONFIG_IP_NF_MATCH_STATE
   Connection state matching allows you to match packets based on their
   relationship to a tracked connection (ie. previous packets).  This
@@ -211,6 +247,30 @@ CONFIG_IP_NF_MANGLE
   If you want to compile it as a module, say M here and read
   <file:Documentation/modules.txt>.  If unsure, say `N'.
 
+CONFIG_IP_NF_TARGET_DSCP
+  This option adds a `DSCP' target, which allows you to create rules in
+  the iptables mangle table. The selected packet has the DSCP field set
+  to the hex value provided on the command line; unlike the TOS target
+  which will only set the legal values within ip.h.
+
+  The DSCP field can be set to any value between 0x0 and 0x4f. It does
+  take into account that bits 6 and 7 are used by ECN.
+
+  If you want to compile it as a module, say M here and read
+  Documentation/modules.txt.  If unsure, say `N'.
+
+CONFIG_IP_NF_TARGET_ECN
+  This option adds a `ECN' target, which can be used in the iptables mangle
+  table.  
+
+  You can use this target to remove the ECN bits from the IPv4 header of
+  an IP packet.  This is particularly useful, if you need to work around
+  existing ECN blackholes on the internet, but don't want to disable
+  ECN support in general.
+
+  If you want to compile it as a module, say M here and read
+  Documentation/modules.txt.  If unsure, say `N'.
+
 CONFIG_IP_NF_TARGET_TOS
   This option adds a `TOS' target, which allows you to create rules in
   the `mangle' table which alter the Type Of Service field of an IP
@@ -230,6 +290,13 @@ CONFIG_IP_NF_TARGET_MARK
   If you want to compile it as a module, say M here and read
   <file:Documentation/modules.txt>.  If unsure, say `N'.
 
+CONFIG_IP_NF_MATCH_HELPER
+  Helper matching allows you to match packets in dynamic connections
+  tracked by a conntrack-helper, ie. ip_conntrack_ftp
+
+  If you want to compile it as a module, say M here and read
+  Documentation/modules.txt.  If unsure, say `Y'.
+
 CONFIG_IP_NF_TARGET_TCPMSS
   This option adds a `TCPMSS' target, which allows you to alter the
   MSS value of TCP SYN packets, to control the maximum size for that

net/ipv4/netfilter/Config.in

@@ -18,15 +18,24 @@ if [ "$CONFIG_IP_NF_IPTABLES" != "n" ]; then
 # The simple matches.
   dep_tristate '  limit match support' CONFIG_IP_NF_MATCH_LIMIT $CONFIG_IP_NF_IPTABLES
   dep_tristate '  MAC address match support' CONFIG_IP_NF_MATCH_MAC $CONFIG_IP_NF_IPTABLES
+  dep_tristate '  Packet type match support' CONFIG_IP_NF_MATCH_PKTTYPE $CONFIG_IP_NF_IPTABLES
   dep_tristate '  netfilter MARK match support' CONFIG_IP_NF_MATCH_MARK $CONFIG_IP_NF_IPTABLES
   dep_tristate '  Multiple port match support' CONFIG_IP_NF_MATCH_MULTIPORT $CONFIG_IP_NF_IPTABLES
   dep_tristate '  TOS match support' CONFIG_IP_NF_MATCH_TOS $CONFIG_IP_NF_IPTABLES
+  dep_tristate '  ECN match support' CONFIG_IP_NF_MATCH_ECN $CONFIG_IP_NF_IPTABLES
+ 
+  dep_tristate '  DSCP match support' CONFIG_IP_NF_MATCH_DSCP $CONFIG_IP_NF_IPTABLES
+ 
   dep_tristate '  AH/ESP match support' CONFIG_IP_NF_MATCH_AH_ESP $CONFIG_IP_NF_IPTABLES
   dep_tristate '  LENGTH match support' CONFIG_IP_NF_MATCH_LENGTH $CONFIG_IP_NF_IPTABLES
   dep_tristate '  TTL match support' CONFIG_IP_NF_MATCH_TTL $CONFIG_IP_NF_IPTABLES
   dep_tristate '  tcpmss match support' CONFIG_IP_NF_MATCH_TCPMSS $CONFIG_IP_NF_IPTABLES
+  if [ "$CONFIG_IP_NF_CONNTRACK" != "n" ]; then
+    dep_tristate '  Helper match support' CONFIG_IP_NF_MATCH_HELPER $CONFIG_IP_NF_IPTABLES
+  fi
   if [ "$CONFIG_IP_NF_CONNTRACK" != "n" ]; then
     dep_tristate '  Connection state match support' CONFIG_IP_NF_MATCH_STATE $CONFIG_IP_NF_CONNTRACK $CONFIG_IP_NF_IPTABLES 
+    dep_tristate '  Connection tracking match support' CONFIG_IP_NF_MATCH_CONNTRACK $CONFIG_IP_NF_CONNTRACK $CONFIG_IP_NF_IPTABLES 
   fi
   if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
     dep_tristate '  Unclean match support (EXPERIMENTAL)' CONFIG_IP_NF_MATCH_UNCLEAN $CONFIG_IP_NF_IPTABLES
@@ -73,6 +82,10 @@ if [ "$CONFIG_IP_NF_IPTABLES" != "n" ]; then
   dep_tristate '  Packet mangling' CONFIG_IP_NF_MANGLE $CONFIG_IP_NF_IPTABLES 
   if [ "$CONFIG_IP_NF_MANGLE" != "n" ]; then
     dep_tristate '    TOS target support' CONFIG_IP_NF_TARGET_TOS $CONFIG_IP_NF_MANGLE
+    dep_tristate '    ECN target support' CONFIG_IP_NF_TARGET_ECN $CONFIG_IP_NF_MANGLE
+ 
+    dep_tristate '    DSCP target support' CONFIG_IP_NF_TARGET_DSCP $CONFIG_IP_NF_MANGLE
+ 
     dep_tristate '    MARK target support' CONFIG_IP_NF_TARGET_MARK $CONFIG_IP_NF_MANGLE
   fi
   dep_tristate '  LOG target support' CONFIG_IP_NF_TARGET_LOG $CONFIG_IP_NF_IPTABLES

net/ipv4/netfilter/Makefile

@@ -3,8 +3,7 @@
 #
 
 export-objs  := ip_conntrack_standalone.o ip_fw_compat.o ip_nat_standalone.o \
-		ip_tables.o arp_tables.o ip_conntrack_ftp.o \
-		ip_conntrack_irc.o
+		ip_tables.o arp_tables.o
 
 # objects for the conntrack and NAT core (used by standalone and backw. compat)
 ip_nf_conntrack-objs	:= ip_conntrack_core.o ip_conntrack_proto_generic.o ip_conntrack_proto_tcp.o ip_conntrack_proto_udp.o ip_conntrack_proto_icmp.o
@@ -25,7 +24,13 @@ obj-$(CONFIG_IP_NF_CONNTRACK) += ip_conntrack.o
 
 # connection tracking helpers
 obj-$(CONFIG_IP_NF_FTP) += ip_conntrack_ftp.o
+ifdef CONFIG_IP_NF_NAT_FTP
+	export-objs += ip_conntrack_ftp.o
+endif
 obj-$(CONFIG_IP_NF_IRC) += ip_conntrack_irc.o
+ifdef CONFIG_IP_NF_NAT_IRC
+	export-objs += ip_conntrack_irc.o
+endif
 
 # NAT helpers 
 obj-$(CONFIG_IP_NF_NAT_FTP) += ip_nat_ftp.o
@@ -40,18 +45,24 @@ obj-$(CONFIG_IP_NF_MANGLE) += iptable_mangle.o
 obj-$(CONFIG_IP_NF_NAT) += iptable_nat.o
 
 # matches
+obj-$(CONFIG_IP_NF_MATCH_HELPER) += ipt_helper.o
 obj-$(CONFIG_IP_NF_MATCH_LIMIT) += ipt_limit.o
 obj-$(CONFIG_IP_NF_MATCH_MARK) += ipt_mark.o
 obj-$(CONFIG_IP_NF_MATCH_MAC) += ipt_mac.o
+
+obj-$(CONFIG_IP_NF_MATCH_PKTTYPE) += ipt_pkttype.o
 obj-$(CONFIG_IP_NF_MATCH_MULTIPORT) += ipt_multiport.o
 obj-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner.o
 obj-$(CONFIG_IP_NF_MATCH_TOS) += ipt_tos.o
+obj-$(CONFIG_IP_NF_MATCH_ECN) += ipt_ecn.o
+obj-$(CONFIG_IP_NF_MATCH_DSCP) += ipt_dscp.o
 obj-$(CONFIG_IP_NF_MATCH_AH_ESP) += ipt_ah.o ipt_esp.o
 
 obj-$(CONFIG_IP_NF_MATCH_LENGTH) += ipt_length.o
 
 obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o
 obj-$(CONFIG_IP_NF_MATCH_STATE) += ipt_state.o
+obj-$(CONFIG_IP_NF_MATCH_CONNTRACK) += ipt_conntrack.o
 obj-$(CONFIG_IP_NF_MATCH_UNCLEAN) += ipt_unclean.o
 obj-$(CONFIG_IP_NF_MATCH_TCPMSS) += ipt_tcpmss.o
 
@@ -59,6 +70,8 @@ obj-$(CONFIG_IP_NF_MATCH_TCPMSS) += ipt_tcpmss.o
 obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o
 obj-$(CONFIG_IP_NF_TARGET_MIRROR) += ipt_MIRROR.o
 obj-$(CONFIG_IP_NF_TARGET_TOS) += ipt_TOS.o
+obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_ECN.o
+obj-$(CONFIG_IP_NF_TARGET_DSCP) += ipt_DSCP.o
 obj-$(CONFIG_IP_NF_TARGET_MARK) += ipt_MARK.o
 obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o
 obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o

net/ipv4/netfilter/ip_conntrack_ftp.c

@@ -16,7 +16,7 @@ struct module *ip_conntrack_ftp = THIS_MODULE;
 
 #define MAX_PORTS 8
 static int ports[MAX_PORTS];
-static int ports_c;
+static int ports_c = 0;
 #ifdef MODULE_PARM
 MODULE_PARM(ports, "1-" __MODULE_STRING(MAX_PORTS) "i");
 #endif
@@ -389,7 +389,7 @@ static char ftp_names[MAX_PORTS][10];
 static void fini(void)
 {
 	int i;
-	for (i = 0; (i < MAX_PORTS) && ports[i]; i++) {
+	for (i = 0; i < ports_c; i++) {
 		DEBUGP("ip_ct_ftp: unregistering helper for port %d\n",
 				ports[i]);
 		ip_conntrack_helper_unregister(&ftp[i]);

net/ipv4/netfilter/ip_conntrack_irc.c

@@ -35,7 +35,7 @@
 
 #define MAX_PORTS 8
 static int ports[MAX_PORTS];
-static int ports_n_c = 0;
+static int ports_c = 0;
 static int max_dcc_channels = 8;
 static unsigned int dcc_timeout = 300;
 
@@ -288,7 +288,7 @@ static int __init init(void)
 			fini();
 			return -EBUSY;
 		}
-		ports_n_c++;
+		ports_c++;
 	}
 	return 0;
 }
@@ -298,7 +298,7 @@ static int __init init(void)
 static void fini(void)
 {
 	int i;
-	for (i = 0; (i < MAX_PORTS) && ports[i]; i++) {
+	for (i = 0; i < ports_c; i++) {
 		DEBUGP("unregistering port %d\n",
 		       ports[i]);
 		ip_conntrack_helper_unregister(&irc_helpers[i]);

net/ipv4/netfilter/ip_conntrack_standalone.c

@@ -68,8 +68,8 @@ print_expect(char *buffer, const struct ip_conntrack_expect *expect)
 			      ? (expect->timeout.expires - jiffies)/HZ : 0);
 	else
 		len = sprintf(buffer, "EXPECTING: - ");
-	len += sprintf(buffer + len, "proto=%u ",
-		      expect->tuple.dst.protonum);
+	len += sprintf(buffer + len, "use=%u proto=%u ",
+		      atomic_read(&expect->use), expect->tuple.dst.protonum);
 	len += print_tuple(buffer + len, &expect->tuple,
 			   __find_proto(expect->tuple.dst.protonum));
 	len += sprintf(buffer + len, "\n");
@@ -153,7 +153,8 @@ list_conntracks(char *buffer, char **start, off_t offset, int length)
 	}
 
 	/* Now iterate through expecteds. */
-	for (e = expect_list.next; e != &expect_list; e = e->next) {
+	for (e = ip_conntrack_expect_list.next; 
+	     e != &ip_conntrack_expect_list; e = e->next) {
 		unsigned int last_len;
 		struct ip_conntrack_expect *expect
 			= (struct ip_conntrack_expect *)e;
@@ -364,7 +365,13 @@ EXPORT_SYMBOL(ip_ct_find_helper);
 EXPORT_SYMBOL(ip_conntrack_expect_related);
 EXPORT_SYMBOL(ip_conntrack_change_expect);
 EXPORT_SYMBOL(ip_conntrack_unexpect_related);
+EXPORT_SYMBOL_GPL(ip_conntrack_expect_find_get);
+EXPORT_SYMBOL_GPL(ip_conntrack_expect_put);
 EXPORT_SYMBOL(ip_conntrack_tuple_taken);
 EXPORT_SYMBOL(ip_ct_gather_frags);
 EXPORT_SYMBOL(ip_conntrack_htable_size);
+EXPORT_SYMBOL(ip_conntrack_expect_list);
 EXPORT_SYMBOL(ip_conntrack_lock);
+EXPORT_SYMBOL(ip_conntrack_hash);
+EXPORT_SYMBOL_GPL(ip_conntrack_find_get);
+EXPORT_SYMBOL_GPL(ip_conntrack_put);

net/ipv4/netfilter/ip_fw_compat.c

@@ -18,6 +18,7 @@ struct notifier_block;
 
 /* Theoretically, we could one day use 2.4 helpers, but for now it
    just confuses depmod --RR */
+EXPORT_NO_SYMBOLS;
 
 static struct firewall_ops *fwops;
 

net/ipv4/netfilter/ip_nat_core.c

@@ -738,11 +738,10 @@ static inline int exp_for_packet(struct ip_conntrack_expect *exp,
 	struct ip_conntrack_protocol *proto;
 	int ret = 1;
 
-	READ_LOCK(&ip_conntrack_lock);
+	MUST_BE_READ_LOCKED(&ip_conntrack_lock);
 	proto = ip_ct_find_proto((*pskb)->nh.iph->protocol);
 	if (proto->exp_matches_pkt)
 		ret = proto->exp_matches_pkt(exp, pskb);
-	READ_UNLOCK(&ip_conntrack_lock);
 
 	return ret;
 }
@@ -999,4 +998,5 @@ void ip_nat_cleanup(void)
 {
 	ip_ct_selective_cleanup(&clean_nat, NULL);
 	ip_conntrack_destroyed = NULL;
+	vfree(bysource);
 }

net/ipv4/netfilter/ip_nat_ftp.c

@@ -291,7 +291,7 @@ static void fini(void)
 {
 	int i;
 
-	for (i = 0; (i < MAX_PORTS) && ports[i]; i++) {
+	for (i = 0; i < ports_c; i++) {
 		DEBUGP("ip_nat_ftp: unregistering port %d\n", ports[i]);
 		ip_nat_helper_unregister(&ftp[i]);
 	}

net/ipv4/netfilter/ip_nat_snmp_basic.c

@@ -52,11 +52,10 @@
 #include <linux/netfilter_ipv4/ip_nat_helper.h>
 #include <linux/brlock.h>
 #include <linux/types.h>
-#include <linux/in.h>
 #include <linux/ip.h>
 #include <net/udp.h>
 #include <asm/uaccess.h>
-#include <net/checksum.h>
+#include <asm/checksum.h>
 
 
 

net/ipv4/netfilter/ipfwadm_core.c

@@ -122,8 +122,10 @@
 #include <net/icmp.h>
 #include <linux/netlink.h>
 #include <linux/init.h>
+#include <linux/spinlock.h>
 #include <linux/netfilter_ipv4/ipfwadm_core.h>
 #include <linux/netfilter_ipv4/compat_firewall.h>
+#include <linux/netfilter_ipv4/lockhelp.h>
 
 #include <net/checksum.h>
 #include <linux/proc_fs.h>
@@ -154,6 +156,8 @@
 #define dprint_ip(a)
 #endif
 
+static rwlock_t ip_fw_lock = RW_LOCK_UNLOCKED;
+
 #if defined(CONFIG_IP_ACCT) || defined(CONFIG_IP_FIREWALL)
 
 struct ip_fw *ip_fw_fwd_chain;
@@ -442,6 +446,11 @@ int ip_fw_chk(struct iphdr *ip, struct net_device *rif, __u16 *redirport,
 	dprintf1("\n");
 #endif
 
+	if (mode == IP_FW_MODE_CHK)
+		READ_LOCK(&ip_fw_lock);
+	else
+		WRITE_LOCK(&ip_fw_lock);
+	
 	for (f=chain;f;f=f->fw_next)
 	{
 		/*
@@ -646,7 +655,8 @@ int ip_fw_chk(struct iphdr *ip, struct net_device *rif, __u16 *redirport,
 #ifdef CONFIG_IP_FIREWALL_NETLINK
 		if((policy&IP_FW_F_PRN) && (answer == FW_REJECT || answer == FW_BLOCK))
 		{
-			struct sk_buff *skb=alloc_skb(128, GFP_ATOMIC);
+			struct sk_buff *skb=alloc_skb(128, (mode == IP_FW_MODE_CHK) ?
+							GFP_KERNEL : GFP_ATOMIC);
 			if(skb)
 			{
 				int len = min_t(unsigned int,
@@ -659,29 +669,36 @@ int ip_fw_chk(struct iphdr *ip, struct net_device *rif, __u16 *redirport,
 			}
 		}
 #endif
-		return answer;
 	} else
 		/* we're doing accounting, always ok */
-		return 0;
+		answer = 0;
+	
+	if (mode == IP_FW_MODE_CHK)
+		READ_UNLOCK(&ip_fw_lock);
+	else
+		WRITE_UNLOCK(&ip_fw_lock);
+
+	return answer;
 }
 
 
 static void zero_fw_chain(struct ip_fw *chainptr)
 {
 	struct ip_fw *ctmp=chainptr;
+	
+	WRITE_LOCK(&ip_fw_lock);
 	while(ctmp)
 	{
 		ctmp->fw_pcnt=0L;
 		ctmp->fw_bcnt=0L;
 		ctmp=ctmp->fw_next;
 	}
+	WRITE_UNLOCK(&ip_fw_lock);
 }
 
 static void free_fw_chain(struct ip_fw *volatile* chainptr)
 {
-	unsigned long flags;
-	save_flags(flags);
-	cli();
+	WRITE_LOCK(&ip_fw_lock);
 	while ( *chainptr != NULL )
 	{
 		struct ip_fw *ftmp;
@@ -690,7 +707,7 @@ static void free_fw_chain(struct ip_fw *volatile* chainptr)
 		kfree(ftmp);
 		MOD_DEC_USE_COUNT;
 	}
-	restore_flags(flags);
+	WRITE_UNLOCK(&ip_fw_lock);
 }
 
 /* Volatiles to keep some of the compiler versions amused */
@@ -698,11 +715,8 @@ static void free_fw_chain(struct ip_fw *volatile* chainptr)
 static int insert_in_chain(struct ip_fw *volatile* chainptr, struct ip_fw *frwl,int len)
 {
 	struct ip_fw *ftmp;
-	unsigned long flags;
-
-	save_flags(flags);
 
-	ftmp = kmalloc( sizeof(struct ip_fw), GFP_ATOMIC );
+	ftmp = kmalloc( sizeof(struct ip_fw), GFP_KERNEL );
 	if ( ftmp == NULL )
 	{
 #ifdef DEBUG_IP_FIREWALL
@@ -721,7 +735,7 @@ static int insert_in_chain(struct ip_fw *volatile* chainptr, struct ip_fw *frwl,
 	ftmp->fw_pcnt=0L;
 	ftmp->fw_bcnt=0L;
 
-	cli();
+	WRITE_LOCK(&ip_fw_lock);
 
 	if ((ftmp->fw_vianame)[0]) {
 		if (!(ftmp->fw_viadev = dev_get_by_name(ftmp->fw_vianame)))
@@ -731,7 +745,7 @@ static int insert_in_chain(struct ip_fw *volatile* chainptr, struct ip_fw *frwl,
 
 	ftmp->fw_next = *chainptr;
        	*chainptr=ftmp;
-	restore_flags(flags);
+	WRITE_UNLOCK(&ip_fw_lock);
 	MOD_INC_USE_COUNT;
 	return(0);
 }
@@ -741,11 +755,8 @@ static int append_to_chain(struct ip_fw *volatile* chainptr, struct ip_fw *frwl,
 	struct ip_fw *ftmp;
 	struct ip_fw *chtmp=NULL;
 	struct ip_fw *volatile chtmp_prev=NULL;
-	unsigned long flags;
 
-	save_flags(flags);
-
-	ftmp = kmalloc( sizeof(struct ip_fw), GFP_ATOMIC );
+	ftmp = kmalloc( sizeof(struct ip_fw), GFP_KERNEL );
 	if ( ftmp == NULL )
 	{
 #ifdef DEBUG_IP_FIREWALL
@@ -766,7 +777,7 @@ static int append_to_chain(struct ip_fw *volatile* chainptr, struct ip_fw *frwl,
 
 	ftmp->fw_next = NULL;
 
-	cli();
+	WRITE_LOCK(&ip_fw_lock);
 
 	if ((ftmp->fw_vianame)[0]) {
 		if (!(ftmp->fw_viadev = dev_get_by_name(ftmp->fw_vianame)))
@@ -782,7 +793,7 @@ static int append_to_chain(struct ip_fw *volatile* chainptr, struct ip_fw *frwl,
 		chtmp_prev->fw_next=ftmp;
 	else
         	*chainptr=ftmp;
-	restore_flags(flags);
+	WRITE_UNLOCK(&ip_fw_lock);
 	MOD_INC_USE_COUNT;
 	return(0);
 }
@@ -792,10 +803,8 @@ static int del_from_chain(struct ip_fw *volatile*chainptr, struct ip_fw *frwl)
 	struct ip_fw 	*ftmp,*ltmp;
 	unsigned short	tport1,tport2,tmpnum;
 	char		matches,was_found;
-	unsigned long 	flags;
 
-	save_flags(flags);
-	cli();
+	WRITE_LOCK(&ip_fw_lock);
 
 	ftmp=*chainptr;
 
@@ -804,7 +813,7 @@ static int del_from_chain(struct ip_fw *volatile*chainptr, struct ip_fw *frwl)
 #ifdef DEBUG_IP_FIREWALL
 		printk("ip_fw_ctl:  chain is empty\n");
 #endif
-		restore_flags(flags);
+		WRITE_UNLOCK(&ip_fw_lock);
 		return( EINVAL );
 	}
 
@@ -856,7 +865,7 @@ static int del_from_chain(struct ip_fw *volatile*chainptr, struct ip_fw *frwl)
 			ftmp = ftmp->fw_next;
 		 }
 	}
-	restore_flags(flags);
+	WRITE_UNLOCK(&ip_fw_lock);
 	if (was_found) {
 		MOD_DEC_USE_COUNT;
 		return 0;
@@ -1110,7 +1119,6 @@ static int ip_chain_procinfo(int stage, char *buffer, char **start,
 {
 	off_t pos=0, begin=0;
 	struct ip_fw *i;
-	unsigned long flags;
 	int len, p;
 	int last_len = 0;
 
@@ -1147,8 +1155,7 @@ static int ip_chain_procinfo(int stage, char *buffer, char **start,
 			break;
 	}
 
-	save_flags(flags);
-	cli();
+	READ_LOCK(&ip_fw_lock);
 
 	while(i!=NULL)
 	{
@@ -1177,16 +1184,19 @@ static int ip_chain_procinfo(int stage, char *buffer, char **start,
 			len = last_len;
 			break;
 		}
+/* Not possible in 2.3.29+, also allowing read lock instead of write -- JM */
+#if 0
 		else if(reset)
 		{
 			/* This needs to be done at this specific place! */
 			i->fw_pcnt=0L;
 			i->fw_bcnt=0L;
 		}
+#endif
 		last_len = len;
 		i=i->fw_next;
 	}
-	restore_flags(flags);
+	READ_UNLOCK(&ip_fw_lock);
 	*start=buffer+(offset-begin);
 	len-=(offset-begin);
 	if(len>length)
@@ -1329,12 +1339,10 @@ int ipfw_device_event(struct notifier_block *this, unsigned long event, void *pt
 {
 	struct net_device *dev=ptr;
 	char *devname = dev->name;
-	unsigned long flags;
 	struct ip_fw *fw;
 	int chn;
 
-	save_flags(flags);
-	cli();
+	WRITE_LOCK(&ip_fw_lock);
 
 	if (event == NETDEV_UP) {
 		for (chn = 0; chn < IP_FW_CHAINS; chn++)
@@ -1351,7 +1359,7 @@ int ipfw_device_event(struct notifier_block *this, unsigned long event, void *pt
 					fw->fw_viadev = (struct net_device*)-1;
 	}
 
-	restore_flags(flags);
+	WRITE_UNLOCK(&ip_fw_lock);
 	return NOTIFY_DONE;
 }
 

net/ipv4/netfilter/ipt_DSCP.c

+/* iptables module for setting the IPv4 DSCP field, Version 1.8
+ *
+ * (C) 2002 by Harald Welte <laforge@gnumonks.org>
+ * based on ipt_FTOS.c (C) 2000 by Matthew G. Marsh <mgm@paktronix.com>
+ * This software is distributed under GNU GPL v2, 1991
+ * 
+ * See RFC2474 for a description of the DSCP field within the IP Header.
+ *
+ * ipt_DSCP.c,v 1.8 2002/08/06 18:41:57 laforge Exp
+*/
+
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <net/checksum.h>
+
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv4/ipt_DSCP.h>
+
+MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
+MODULE_DESCRIPTION("IP tables DSCP modification module");
+MODULE_LICENSE("GPL");
+
+static unsigned int
+target(struct sk_buff **pskb,
+       unsigned int hooknum,
+       const struct net_device *in,
+       const struct net_device *out,
+       const void *targinfo,
+       void *userinfo)
+{
+	struct iphdr *iph = (*pskb)->nh.iph;
+	const struct ipt_DSCP_info *dinfo = targinfo;
+	u_int8_t sh_dscp = ((dinfo->dscp << IPT_DSCP_SHIFT) & IPT_DSCP_MASK);
+
+
+	if ((iph->tos & IPT_DSCP_MASK) != sh_dscp) {
+		u_int16_t diffs[2];
+
+		/* raw socket (tcpdump) may have clone of incoming
+		 * skb: don't disturb it --RR */
+		if (skb_cloned(*pskb) && !(*pskb)->sk) {
+			struct sk_buff *nskb = skb_copy(*pskb, GFP_ATOMIC);
+			if (!nskb)
+				return NF_DROP;
+			kfree_skb(*pskb);
+			*pskb = nskb;
+			iph = (*pskb)->nh.iph;
+		}
+
+		diffs[0] = htons(iph->tos) ^ 0xFFFF;
+		iph->tos = (iph->tos & ~IPT_DSCP_MASK) | sh_dscp;
+		diffs[1] = htons(iph->tos);
+		iph->check = csum_fold(csum_partial((char *)diffs,
+		                                    sizeof(diffs),
+		                                    iph->check^0xFFFF));
+		(*pskb)->nfcache |= NFC_ALTERED;
+	}
+	return IPT_CONTINUE;
+}
+
+static int
+checkentry(const char *tablename,
+	   const struct ipt_entry *e,
+           void *targinfo,
+           unsigned int targinfosize,
+           unsigned int hook_mask)
+{
+	const u_int8_t dscp = ((struct ipt_DSCP_info *)targinfo)->dscp;
+
+	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_DSCP_info))) {
+		printk(KERN_WARNING "DSCP: targinfosize %u != %Zu\n",
+		       targinfosize,
+		       IPT_ALIGN(sizeof(struct ipt_DSCP_info)));
+		return 0;
+	}
+
+	if (strcmp(tablename, "mangle") != 0) {
+		printk(KERN_WARNING "DSCP: can only be called from \"mangle\" table, not \"%s\"\n", tablename);
+		return 0;
+	}
+
+	if ((dscp > IPT_DSCP_MAX)) {
+		printk(KERN_WARNING "DSCP: dscp %x out of range\n", dscp);
+		return 0;
+	}
+
+	return 1;
+}
+
+static struct ipt_target ipt_dscp_reg
+= { { NULL, NULL }, "DSCP", target, checkentry, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+	if (ipt_register_target(&ipt_dscp_reg))
+		return -EINVAL;
+
+	return 0;
+}
+
+static void __exit fini(void)
+{
+	ipt_unregister_target(&ipt_dscp_reg);
+}
+
+module_init(init);
+module_exit(fini);

net/ipv4/netfilter/ipt_ECN.c

+/* iptables module for the IPv4 and TCP ECN bits, Version 1.5
+ *
+ * (C) 2002 by Harald Welte <laforge@gnumonks.org>
+ * 
+ * This software is distributed under GNU GPL v2, 1991
+ * 
+ * ipt_ECN.c,v 1.5 2002/08/18 19:36:51 laforge Exp
+*/
+
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <net/checksum.h>
+
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv4/ipt_ECN.h>
+
+MODULE_LICENSE("GPL");
+
+/* set ECT codepoint from IP header.
+ * 	return 0 in case there was no ECT codepoint
+ * 	return 1 in case ECT codepoint has been overwritten
+ * 	return < 0 in case there was error */
+static int inline
+set_ect_ip(struct sk_buff **pskb, struct iphdr *iph,
+	   const struct ipt_ECN_info *einfo)
+{
+	if ((iph->tos & IPT_ECN_IP_MASK)
+	    != (einfo->ip_ect & IPT_ECN_IP_MASK)) {
+		u_int16_t diffs[2];
+
+		/* raw socket (tcpdump) may have clone of incoming
+		 * skb: don't disturb it --RR */
+		if (skb_cloned(*pskb) && !(*pskb)->sk) {
+			struct sk_buff *nskb = skb_copy(*pskb, GFP_ATOMIC);
+			if (!nskb)
+				return NF_DROP;
+			kfree_skb(*pskb);
+			*pskb = nskb;
+			iph = (*pskb)->nh.iph;
+		}
+
+		diffs[0] = htons(iph->tos) ^ 0xFFFF;
+		iph->tos = iph->tos & ~IPT_ECN_IP_MASK;
+		iph->tos = iph->tos | (einfo->ip_ect & IPT_ECN_IP_MASK);
+		diffs[1] = htons(iph->tos);
+		iph->check = csum_fold(csum_partial((char *)diffs,
+		                                    sizeof(diffs),
+		                                    iph->check^0xFFFF));
+		(*pskb)->nfcache |= NFC_ALTERED;
+
+		return 1;
+	} 
+	return 0;
+}
+
+static int inline
+set_ect_tcp(struct sk_buff **pskb, struct iphdr *iph,
+	    const struct ipt_ECN_info *einfo)
+{
+
+	struct tcphdr *tcph = (void *) iph + iph->ihl * 4;
+	u_int16_t *tcpflags = (u_int16_t *)tcph + 6;
+	u_int16_t diffs[2];
+
+	/* raw socket (tcpdump) may have clone of incoming
+	 * skb: don't disturb it --RR */
+	if (skb_cloned(*pskb) && !(*pskb)->sk) {
+		struct sk_buff *nskb = skb_copy(*pskb, GFP_ATOMIC);
+		if (!nskb)
+			return NF_DROP;
+		kfree_skb(*pskb);
+		*pskb = nskb;
+		iph = (*pskb)->nh.iph;
+	}
+
+	diffs[0] = *tcpflags;
+
+	if (einfo->operation & IPT_ECN_OP_SET_ECE
+	    && tcph->ece != einfo->proto.tcp.ece) {
+		tcph->ece = einfo->proto.tcp.ece;
+	}
+
+	if (einfo->operation & IPT_ECN_OP_SET_CWR
+	    && tcph->cwr != einfo->proto.tcp.cwr) {
+		tcph->cwr = einfo->proto.tcp.cwr;
+	}
+	
+	if (diffs[0] != *tcpflags) {
+		diffs[0] = htons(diffs[0]) ^ 0xFFFF;
+		diffs[1] = htons(*tcpflags);
+		tcph->check = csum_fold(csum_partial((char *)diffs,
+		                                    sizeof(diffs),
+		                                    tcph->check^0xFFFF));
+		(*pskb)->nfcache |= NFC_ALTERED;
+
+		return 1;
+	}
+
+	return 0;
+}
+
+static unsigned int
+target(struct sk_buff **pskb,
+       unsigned int hooknum,
+       const struct net_device *in,
+       const struct net_device *out,
+       const void *targinfo,
+       void *userinfo)
+{
+	struct iphdr *iph = (*pskb)->nh.iph;
+	const struct ipt_ECN_info *einfo = targinfo;
+
+	if (einfo->operation & IPT_ECN_OP_SET_IP)
+		set_ect_ip(pskb, iph, einfo);
+
+	if (einfo->operation & (IPT_ECN_OP_SET_ECE | IPT_ECN_OP_SET_CWR)
+	    && iph->protocol == IPPROTO_TCP)
+		set_ect_tcp(pskb, iph, einfo);
+
+	return IPT_CONTINUE;
+}
+
+static int
+checkentry(const char *tablename,
+	   const struct ipt_entry *e,
+           void *targinfo,
+           unsigned int targinfosize,
+           unsigned int hook_mask)
+{
+	const struct ipt_ECN_info *einfo = (struct ipt_ECN_info *)targinfo;
+
+	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_ECN_info))) {
+		printk(KERN_WARNING "ECN: targinfosize %u != %Zu\n",
+		       targinfosize,
+		       IPT_ALIGN(sizeof(struct ipt_ECN_info)));
+		return 0;
+	}
+
+	if (strcmp(tablename, "mangle") != 0) {
+		printk(KERN_WARNING "ECN: can only be called from \"mangle\" table, not \"%s\"\n", tablename);
+		return 0;
+	}
+
+	if (einfo->operation & IPT_ECN_OP_MASK) {
+		printk(KERN_WARNING "ECN: unsupported ECN operation %x\n",
+			einfo->operation);
+		return 0;
+	}
+	if (einfo->ip_ect & ~IPT_ECN_IP_MASK) {
+		printk(KERN_WARNING "ECN: new ECT codepoint %x out of mask\n",
+			einfo->ip_ect);
+		return 0;
+	}
+
+	if ((einfo->operation & (IPT_ECN_OP_SET_ECE|IPT_ECN_OP_SET_CWR))
+	    && e->ip.proto != IPPROTO_TCP) {
+		printk(KERN_WARNING "ECN: cannot use TCP operations on a "
+		       "non-tcp rule\n");
+		return 0;
+	}
+
+	return 1;
+}
+
+static struct ipt_target ipt_ecn_reg
+= { { NULL, NULL }, "ECN", target, checkentry, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+	if (ipt_register_target(&ipt_ecn_reg))
+		return -EINVAL;
+
+	return 0;
+}
+
+static void __exit fini(void)
+{
+	ipt_unregister_target(&ipt_ecn_reg);
+}
+
+module_init(init);
+module_exit(fini);

net/ipv4/netfilter/ipt_REJECT.c

@@ -39,7 +39,8 @@ static void send_reset(struct sk_buff *oldskb, int local)
 	struct tcphdr *otcph, *tcph;
 	struct rtable *rt;
 	unsigned int otcplen;
-	u_int16_t tmp;
+	u_int16_t tmp_port;
+	u_int32_t tmp_addr;
 	int needs_ack;
 
 	/* IP header checks: fragment, too short. */
@@ -74,14 +75,17 @@ static void send_reset(struct sk_buff *oldskb, int local)
 #ifdef CONFIG_NETFILTER_DEBUG
 	nskb->nf_debug = 0;
 #endif
+	nskb->nfmark = 0;
 
 	tcph = (struct tcphdr *)((u_int32_t*)nskb->nh.iph + nskb->nh.iph->ihl);
 
 	/* Swap source and dest */
-	nskb->nh.iph->daddr = xchg(&nskb->nh.iph->saddr, nskb->nh.iph->daddr);
-	tmp = tcph->source;
+	tmp_addr = nskb->nh.iph->saddr;
+	nskb->nh.iph->saddr = nskb->nh.iph->daddr;
+	nskb->nh.iph->daddr = tmp_addr;
+	tmp_port = tcph->source;
 	tcph->source = tcph->dest;
-	tcph->dest = tmp;
+	tcph->dest = tmp_port;
 
 	/* Truncate to length (no data) */
 	tcph->doff = sizeof(struct tcphdr)/4;

net/ipv4/netfilter/ipt_ah.c

@@ -5,6 +5,7 @@
 #include <linux/netfilter_ipv4/ipt_ah.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 
+EXPORT_NO_SYMBOLS;
 MODULE_LICENSE("GPL");
 
 #ifdef DEBUG_CONNTRACK
@@ -90,12 +91,12 @@ checkentry(const char *tablename,
 static struct ipt_match ah_match
 = { { NULL, NULL }, "ah", &match, &checkentry, NULL, THIS_MODULE };
 
-int __init init(void)
+static int __init init(void)
 {
 	return ipt_register_match(&ah_match);
 }
 
-void __exit cleanup(void)
+static void __exit cleanup(void)
 {
 	ipt_unregister_match(&ah_match);
 }

net/ipv4/netfilter/ipt_conntrack.c

+/* Kernel module to match connection tracking information.
+ * Superset of Rusty's minimalistic state match.
+ * GPL (C) 2001  Marc Boucher (marc@mbsi.ca).
+ */
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/netfilter_ipv4/ip_conntrack.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv4/ipt_conntrack.h>
+
+static int
+match(const struct sk_buff *skb,
+      const struct net_device *in,
+      const struct net_device *out,
+      const void *matchinfo,
+      int offset,
+      const void *hdr,
+      u_int16_t datalen,
+      int *hotdrop)
+{
+	const struct ipt_conntrack_info *sinfo = matchinfo;
+	struct ip_conntrack *ct;
+	enum ip_conntrack_info ctinfo;
+	unsigned int statebit;
+
+	ct = ip_conntrack_get((struct sk_buff *)skb, &ctinfo);
+
+#define FWINV(bool,invflg) ((bool) ^ !!(sinfo->invflags & invflg))
+
+	statebit = ct ? IPT_CONNTRACK_STATE_INVALID : IPT_CONNTRACK_STATE_BIT(ctinfo);
+	if(sinfo->flags & IPT_CONNTRACK_STATE) {
+		if (ct) {
+			if(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip !=
+			    ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip)
+				statebit |= IPT_CONNTRACK_STATE_SNAT;
+
+			if(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip !=
+			    ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip)
+				statebit |= IPT_CONNTRACK_STATE_DNAT;
+		}
+
+		if (FWINV((statebit & sinfo->statemask) == 0, IPT_CONNTRACK_STATE))
+			return 0;
+	}
+
+	if(sinfo->flags & IPT_CONNTRACK_PROTO) {
+		if (!ct || FWINV(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum != sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.protonum, IPT_CONNTRACK_PROTO))
+                	return 0;
+	}
+
+	if(sinfo->flags & IPT_CONNTRACK_ORIGSRC) {
+		if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip&sinfo->sipmsk[IP_CT_DIR_ORIGINAL].s_addr) != sinfo->tuple[IP_CT_DIR_ORIGINAL].src.ip, IPT_CONNTRACK_ORIGSRC))
+			return 0;
+	}
+
+	if(sinfo->flags & IPT_CONNTRACK_ORIGDST) {
+		if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip&sinfo->dipmsk[IP_CT_DIR_ORIGINAL].s_addr) != sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.ip, IPT_CONNTRACK_ORIGDST))
+			return 0;
+	}
+
+	if(sinfo->flags & IPT_CONNTRACK_REPLSRC) {
+		if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip&sinfo->sipmsk[IP_CT_DIR_REPLY].s_addr) != sinfo->tuple[IP_CT_DIR_REPLY].src.ip, IPT_CONNTRACK_REPLSRC))
+			return 0;
+	}
+
+	if(sinfo->flags & IPT_CONNTRACK_REPLDST) {
+		if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip&sinfo->dipmsk[IP_CT_DIR_REPLY].s_addr) != sinfo->tuple[IP_CT_DIR_REPLY].dst.ip, IPT_CONNTRACK_REPLDST))
+			return 0;
+	}
+
+	if(sinfo->flags & IPT_CONNTRACK_STATUS) {
+		if (!ct || FWINV((ct->status & sinfo->statusmask) == 0, IPT_CONNTRACK_STATUS))
+			return 0;
+	}
+
+	if(sinfo->flags & IPT_CONNTRACK_EXPIRES) {
+		unsigned long expires;
+
+		if(!ct)
+			return 0;
+
+		expires = timer_pending(&ct->timeout) ? (ct->timeout.expires - jiffies)/HZ : 0;
+
+		if (FWINV(!(expires >= sinfo->expires_min && expires <= sinfo->expires_max), IPT_CONNTRACK_EXPIRES))
+			return 0;
+	}
+
+	return 1;
+}
+
+static int check(const char *tablename,
+		 const struct ipt_ip *ip,
+		 void *matchinfo,
+		 unsigned int matchsize,
+		 unsigned int hook_mask)
+{
+	if (matchsize != IPT_ALIGN(sizeof(struct ipt_conntrack_info)))
+		return 0;
+
+	return 1;
+}
+
+static struct ipt_match conntrack_match
+= { { NULL, NULL }, "conntrack", &match, &check, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+	/* NULL if ip_conntrack not a module */
+	if (ip_conntrack_module)
+		__MOD_INC_USE_COUNT(ip_conntrack_module);
+	return ipt_register_match(&conntrack_match);
+}
+
+static void __exit fini(void)
+{
+	ipt_unregister_match(&conntrack_match);
+	if (ip_conntrack_module)
+		__MOD_DEC_USE_COUNT(ip_conntrack_module);
+}
+
+module_init(init);
+module_exit(fini);
+MODULE_LICENSE("GPL");

net/ipv4/netfilter/ipt_dscp.c

+/* IP tables module for matching the value of the IPv4 DSCP field
+ *
+ * ipt_dscp.c,v 1.3 2002/08/05 19:00:21 laforge Exp
+ *
+ * (C) 2002 by Harald Welte <laforge@gnumonks.org>
+ *
+ * This software is distributed under the terms  GNU GPL
+ */
+
+#include <linux/module.h>
+#include <linux/skbuff.h>
+
+#include <linux/netfilter_ipv4/ipt_dscp.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+
+MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
+MODULE_DESCRIPTION("IP tables DSCP matching module");
+MODULE_LICENSE("GPL");
+
+static int match(const struct sk_buff *skb, const struct net_device *in,
+		 const struct net_device *out, const void *matchinfo,
+		 int offset, const void *hdr, u_int16_t datalen,
+		 int *hotdrop)
+{
+	const struct ipt_dscp_info *info = matchinfo;
+	const struct iphdr *iph = skb->nh.iph;
+
+	u_int8_t sh_dscp = ((info->dscp << IPT_DSCP_SHIFT) & IPT_DSCP_MASK);
+
+	return ((iph->tos&IPT_DSCP_MASK) == sh_dscp) ^ info->invert;
+}
+
+static int checkentry(const char *tablename, const struct ipt_ip *ip,
+		      void *matchinfo, unsigned int matchsize,
+		      unsigned int hook_mask)
+{
+	if (matchsize != IPT_ALIGN(sizeof(struct ipt_dscp_info)))
+		return 0;
+
+	return 1;
+}
+
+static struct ipt_match dscp_match = { { NULL, NULL }, "dscp", &match,
+		&checkentry, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+	return ipt_register_match(&dscp_match);
+}
+
+static void __exit fini(void)
+{
+	ipt_unregister_match(&dscp_match);
+
+}
+
+module_init(init);
+module_exit(fini);

net/ipv4/netfilter/ipt_ecn.c

+/* IP tables module for matching the value of the IPv4 and TCP ECN bits
+ *
+ * ipt_ecn.c,v 1.3 2002/05/29 15:09:00 laforge Exp
+ *
+ * (C) 2002 by Harald Welte <laforge@gnumonks.org>
+ *
+ * This software is distributed under the terms GNU GPL v2
+ */
+
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/tcp.h>
+
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv4/ipt_ecn.h>
+
+MODULE_AUTHOR("Harald Welte <laforge@gnumonks.org>");
+MODULE_DESCRIPTION("IP tables ECN matching module");
+MODULE_LICENSE("GPL");
+
+static inline int match_ip(const struct sk_buff *skb,
+			   const struct iphdr *iph,
+			   const struct ipt_ecn_info *einfo)
+{
+	return ((iph->tos&IPT_ECN_IP_MASK) == einfo->ip_ect);
+}
+
+static inline int match_tcp(const struct sk_buff *skb,
+			    const struct iphdr *iph,
+			    const struct ipt_ecn_info *einfo)
+{
+	struct tcphdr *tcph = (void *)iph + iph->ihl*4;
+
+	if (einfo->operation & IPT_ECN_OP_MATCH_ECE) {
+		if (einfo->invert & IPT_ECN_OP_MATCH_ECE) {
+			if (tcph->ece == 1)
+				return 0;
+		} else {
+			if (tcph->ece == 0)
+				return 0;
+		}
+	}
+
+	if (einfo->operation & IPT_ECN_OP_MATCH_CWR) {
+		if (einfo->invert & IPT_ECN_OP_MATCH_CWR) {
+			if (tcph->cwr == 1)
+				return 0;
+		} else {
+			if (tcph->cwr == 0)
+				return 0;
+		}
+	}
+
+	return 1;
+}
+
+static int match(const struct sk_buff *skb, const struct net_device *in,
+		 const struct net_device *out, const void *matchinfo,
+		 int offset, const void *hdr, u_int16_t datalen,
+		 int *hotdrop)
+{
+	const struct ipt_ecn_info *info = matchinfo;
+	const struct iphdr *iph = skb->nh.iph;
+
+	if (info->operation & IPT_ECN_OP_MATCH_IP)
+		if (!match_ip(skb, iph, info))
+			return 0;
+
+	if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR)) {
+		if (iph->protocol != IPPROTO_TCP)
+			return 0;
+		if (!match_tcp(skb, iph, info))
+			return 0;
+	}
+
+	return 1;
+}
+
+static int checkentry(const char *tablename, const struct ipt_ip *ip,
+		      void *matchinfo, unsigned int matchsize,
+		      unsigned int hook_mask)
+{
+	const struct ipt_ecn_info *info = matchinfo;
+
+	if (matchsize != IPT_ALIGN(sizeof(struct ipt_ecn_info)))
+		return 0;
+
+	if (info->operation & IPT_ECN_OP_MATCH_MASK)
+		return 0;
+
+	if (info->invert & IPT_ECN_OP_MATCH_MASK)
+		return 0;
+
+	if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR)
+	    && ip->proto != IPPROTO_TCP) {
+		printk(KERN_WARNING "ipt_ecn: can't match TCP bits in rule for"
+		       " non-tcp packets\n");
+		return 0;
+	}
+
+	return 1;
+}
+
+static struct ipt_match ecn_match = { { NULL, NULL }, "ecn", &match,
+		&checkentry, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+	return ipt_register_match(&ecn_match);
+}
+
+static void __exit fini(void)
+{
+	ipt_unregister_match(&ecn_match);
+}
+
+module_init(init);
+module_exit(fini);

net/ipv4/netfilter/ipt_esp.c

@@ -5,6 +5,7 @@
 #include <linux/netfilter_ipv4/ipt_esp.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 
+EXPORT_NO_SYMBOLS;
 MODULE_LICENSE("GPL");
 
 #ifdef DEBUG_CONNTRACK

net/ipv4/netfilter/ipt_helper.c

+/*
+ * iptables module to match on related connections
+ *   (c) 2001 Martin Josefsson <gandalf@wlug.westbo.se>
+ *
+ * Released under the terms of GNU GPLv2.
+ *
+ *   19 Mar 2002 Harald Welte <laforge@gnumonks.org>:
+ *   		 - Port to newnat infrastructure
+ */
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/netfilter_ipv4/ip_conntrack.h>
+#include <linux/netfilter_ipv4/ip_conntrack_helper.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv4/ipt_helper.h>
+
+MODULE_LICENSE("GPL");
+
+#if 0
+#define DEBUGP printk
+#else
+#define DEBUGP(format, args...)
+#endif
+
+static int
+match(const struct sk_buff *skb,
+      const struct net_device *in,
+      const struct net_device *out,
+      const void *matchinfo,
+      int offset,
+      const void *hdr,
+      u_int16_t datalen,
+      int *hotdrop)
+{
+	const struct ipt_helper_info *info = matchinfo;
+	struct ip_conntrack_expect *exp;
+	struct ip_conntrack *ct;
+	enum ip_conntrack_info ctinfo;
+	
+	ct = ip_conntrack_get((struct sk_buff *)skb, &ctinfo);
+	if (!ct) {
+		DEBUGP("ipt_helper: Eek! invalid conntrack?\n");
+		return 0;
+	}
+
+	if (!ct->master) {
+		DEBUGP("ipt_helper: conntrack %p has no master\n", ct);
+		return 0;
+	}
+
+	exp = ct->master;
+	if (!exp->expectant) {
+		DEBUGP("ipt_helper: expectation %p without expectant !?!\n", 
+			exp);
+		return 0;
+	}
+
+	if (!exp->expectant->helper) {
+		DEBUGP("ipt_helper: master ct %p has no helper\n", 
+			exp->expectant);
+		return 0;
+	}
+
+	DEBUGP("master's name = %s , info->name = %s\n", 
+		exp->expectant->helper->name, info->name);
+
+	return !strncmp(exp->expectant->helper->name, info->name, 
+			strlen(exp->expectant->helper->name)) ^ info->invert;
+}
+
+static int check(const char *tablename,
+		 const struct ipt_ip *ip,
+		 void *matchinfo,
+		 unsigned int matchsize,
+		 unsigned int hook_mask)
+{
+	struct ipt_helper_info *info = matchinfo;
+
+	info->name[29] = '\0';
+
+	/* verify size */
+	if (matchsize != IPT_ALIGN(sizeof(struct ipt_helper_info)))
+		return 0;
+
+	/* verify that we actually should match anything */
+	if ( strlen(info->name) == 0 )
+		return 0;
+	
+	return 1;
+}
+
+static struct ipt_match helper_match
+= { { NULL, NULL }, "helper", &match, &check, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+	/* NULL if ip_conntrack not a module */
+	if (ip_conntrack_module)
+		__MOD_INC_USE_COUNT(ip_conntrack_module);
+	return ipt_register_match(&helper_match);
+}
+
+static void __exit fini(void)
+{
+	ipt_unregister_match(&helper_match);
+	if (ip_conntrack_module)
+		__MOD_DEC_USE_COUNT(ip_conntrack_module);
+}
+
+module_init(init);
+module_exit(fini);
+

net/ipv4/netfilter/ipt_owner.c

@@ -11,6 +11,38 @@
 #include <linux/netfilter_ipv4/ipt_owner.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 
+static int
+match_comm(const struct sk_buff *skb, const char *comm)
+{
+	struct task_struct *p;
+	struct files_struct *files;
+	int i;
+
+	read_lock(&tasklist_lock);
+	for_each_task(p) {
+		if(strncmp(p->comm, comm, sizeof(p->comm)))
+			continue;
+
+		task_lock(p);
+		files = p->files;
+		if(files) {
+			read_lock(&files->file_lock);
+			for (i=0; i < files->max_fds; i++) {
+				if (fcheck_files(files, i) == skb->sk->socket->file) {
+					read_unlock(&files->file_lock);
+					task_unlock(p);
+					read_unlock(&tasklist_lock);
+					return 1;
+				}
+			}
+			read_unlock(&files->file_lock);
+		}
+		task_unlock(p);
+	}
+	read_unlock(&tasklist_lock);
+	return 0;
+}
+
 static int
 match_pid(const struct sk_buff *skb, pid_t pid)
 {
@@ -115,6 +147,12 @@ match(const struct sk_buff *skb,
 			return 0;
 	}
 
+	if(info->match & IPT_OWNER_COMM) {
+		if (!match_comm(skb, info->comm) ^
+		    !!(info->invert & IPT_OWNER_COMM))
+			return 0;
+	}
+
 	return 1;
 }
 

net/ipv4/netfilter/ipt_pkttype.c

+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+
+#include <linux/netfilter_ipv4/ipt_pkttype.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+
+MODULE_LICENSE("GPL");
+
+static int match(const struct sk_buff *skb,
+      const struct net_device *in,
+      const struct net_device *out,
+      const void *matchinfo,
+      int offset,
+      const void *hdr,
+      u_int16_t datalen,
+      int *hotdrop)
+{
+    const struct ipt_pkttype_info *info = matchinfo;
+
+    return (skb->pkt_type == info->pkttype) ^ info->invert;
+}
+
+static int checkentry(const char *tablename,
+		   const struct ipt_ip *ip,
+		   void *matchinfo,
+		   unsigned int matchsize,
+		   unsigned int hook_mask)
+{
+/*
+	if (hook_mask
+	    & ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_IN)
+		| (1 << NF_IP_FORWARD))) {
+		printk("ipt_pkttype: only valid for PRE_ROUTING, LOCAL_IN or FORWARD.\n");
+		return 0;
+	}
+*/
+	if (matchsize != IPT_ALIGN(sizeof(struct ipt_pkttype_info)))
+		return 0;
+
+	return 1;
+}
+
+static struct ipt_match pkttype_match
+= { { NULL, NULL }, "pkttype", &match, &checkentry, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+	return ipt_register_match(&pkttype_match);
+}
+
+static void __exit fini(void)
+{
+	ipt_unregister_match(&pkttype_match);
+}
+
+module_init(init);
+module_exit(fini);

net/ipv4/tcp_diag.c

@@ -66,7 +66,8 @@ static int tcpdiag_fill(struct sk_buff *skb, struct sock *sk,
 	r->tcpdiag_retrans = 0;
 
 	r->id.tcpdiag_if = sk->bound_dev_if;
-	*((struct sock **)&r->id.tcpdiag_cookie) = sk;
+	r->id.tcpdiag_cookie[0] = (u32)(unsigned long)sk;
+	r->id.tcpdiag_cookie[1] = (u32)(((unsigned long)sk >> 31) >> 1);
 
 	if (r->tcpdiag_state == TCP_TIME_WAIT) {
 		struct tcp_tw_bucket *tw = (struct tcp_tw_bucket*)sk;
@@ -237,7 +238,8 @@ static int tcpdiag_get_exact(struct sk_buff *in_skb, struct nlmsghdr *nlh)
 	err = -ESTALE;
 	if ((req->id.tcpdiag_cookie[0] != TCPDIAG_NOCOOKIE ||
 	     req->id.tcpdiag_cookie[1] != TCPDIAG_NOCOOKIE) &&
-	    sk != *((struct sock **)&req->id.tcpdiag_cookie[0]))
+	    ((u32)(unsigned long)sk != req->id.tcpdiag_cookie[0] ||
+	     (u32)((((unsigned long)sk) >> 31) >> 1) != req->id.tcpdiag_cookie[1]))
 		goto out;
 
 	err = -ENOMEM;

net/ipv6/netfilter/Config.help

+CONFIG_IP6_NF_MATCH_EUI64
+  This module performs checking on the IPv6 source address
+  Compares the last 64 bits with the EUI64 (delivered
+  from the MAC address) address
+
+  If you want to compile it as a module, say M here and read
+  Documentation/modules.txt.  If unsure, say `N'.
+
 CONFIG_IP6_NF_MATCH_MAC
   mac matching allows you to match packets based on the source
   Ethernet address of the packet.
@@ -5,6 +13,13 @@ CONFIG_IP6_NF_MATCH_MAC
   If you want to compile it as a module, say M here and read
   <file:Documentation/modules.txt>.  If unsure, say `N'.
 
+CONFIG_IP6_NF_MATCH_LENGTH
+  This option allows you to match the length of a packet against a
+  specific value or range of values.
+
+  If you want to compile it as a module, say M here and read
+  Documentation/modules.txt.  If unsure, say `N'.
+
 CONFIG_IP6_NF_MATCH_MARK
   Netfilter mark matching allows you to match packets based on the
   `nfmark' value in the packet.  This can be set by the MARK target

net/ipv6/netfilter/Config.in

@@ -24,6 +24,10 @@ if [ "$CONFIG_IP6_NF_IPTABLES" != "n" ]; then
   fi
 #  dep_tristate '  MAC address match support' CONFIG_IP6_NF_MATCH_MAC $CONFIG_IP6_NF_IPTABLES
   dep_tristate '  netfilter MARK match support' CONFIG_IP6_NF_MATCH_MARK $CONFIG_IP6_NF_IPTABLES
+  dep_tristate '  Packet Length match support' CONFIG_IP6_NF_MATCH_LENGTH $CONFIG_IP6_NF_IPTABLES
+  if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
+    dep_tristate '  EUI64 address check (EXPERIMENTAL)' CONFIG_IP6_NF_MATCH_EUI64 $CONFIG_IP6_NF_IPTABLES
+  fi
 #  dep_tristate '  Multiple port match support' CONFIG_IP6_NF_MATCH_MULTIPORT $CONFIG_IP6_NF_IPTABLES
 #  dep_tristate '  TOS match support' CONFIG_IP6_NF_MATCH_TOS $CONFIG_IP6_NF_IPTABLES
 #  if [ "$CONFIG_IP6_NF_CONNTRACK" != "n" ]; then

net/ipv6/netfilter/Makefile

@@ -8,7 +8,9 @@ export-objs := ip6_tables.o
 obj-$(CONFIG_IP6_NF_IPTABLES) += ip6_tables.o
 obj-$(CONFIG_IP6_NF_MATCH_LIMIT) += ip6t_limit.o
 obj-$(CONFIG_IP6_NF_MATCH_MARK) += ip6t_mark.o
+obj-$(CONFIG_IP6_NF_MATCH_LENGTH) += ip6t_length.o
 obj-$(CONFIG_IP6_NF_MATCH_MAC) += ip6t_mac.o
+obj-$(CONFIG_IP6_NF_MATCH_EUI64) += ip6t_eui64.o
 obj-$(CONFIG_IP6_NF_MATCH_MULTIPORT) += ip6t_multiport.o
 obj-$(CONFIG_IP6_NF_MATCH_OWNER) += ip6t_owner.o
 obj-$(CONFIG_IP6_NF_FILTER) += ip6table_filter.o

net/ipv6/netfilter/ip6_tables.c

@@ -7,6 +7,8 @@
  * 19 Jan 2002 Harald Welte <laforge@gnumonks.org>
  * 	- increase module usage count as soon as we have rules inside
  * 	  a table
+ * 06 Jun 2002 Andras Kis-Szabo <kisza@sch.bme.hu>
+ *      - new extension header parser code
  */
 #include <linux/config.h>
 #include <linux/skbuff.h>
@@ -25,6 +27,7 @@
 #include <linux/netfilter_ipv6/ip6_tables.h>
 
 #define IPV6_HDR_LEN	(sizeof(struct ipv6hdr))
+#define IPV6_OPTHDR_LEN	(sizeof(struct ipv6_opt_hdr))
 
 /*#define DEBUG_IP_FIREWALL*/
 /*#define DEBUG_ALLOW_ALL*/ /* Useful for remote debugging */
@@ -133,43 +136,23 @@ static int ip6_masked_addrcmp(struct in6_addr addr1, struct in6_addr mask,
 	return 0;
 }
 
-/* takes in current header and pointer to the header */
-/* if another header exists, sets hdrptr to the next header
-   and returns the new header value, else returns 0 */
-static u_int8_t ip6_nexthdr(u_int8_t currenthdr, u_int8_t *hdrptr)
+/* Check for an extension */
+int 
+ip6t_ext_hdr(u8 nexthdr)
 {
-	int i;
-	u_int8_t hdrlen, nexthdr = 0;
-	switch(currenthdr){
-		case IPPROTO_AH:
-		/* whoever decided to do the length of AUTH for ipv6
-		in 32bit units unlike other headers should be beaten...
-		repeatedly...with a large stick...no, an even LARGER
-		stick...no, you're still not thinking big enough */
-			nexthdr = *hdrptr;
-			hdrlen = hdrptr[i] * 4 + 8;
-			hdrptr = hdrptr + hdrlen;
-			break;
-		/*stupid rfc2402 */
-		case IPPROTO_DSTOPTS:
-		case IPPROTO_ROUTING:
-		case IPPROTO_HOPOPTS:
-			nexthdr = *hdrptr;
-			hdrlen = hdrptr[1] * 8 + 8;
-			hdrptr = hdrptr + hdrlen;
-			break;
-		case IPPROTO_FRAGMENT:
-			nexthdr = *hdrptr;
-			hdrptr = hdrptr + 8;
-			break;
-	}	
-	return nexthdr;
-
+        return ( (nexthdr == IPPROTO_HOPOPTS)   ||
+                 (nexthdr == IPPROTO_ROUTING)   ||
+                 (nexthdr == IPPROTO_FRAGMENT)  ||
+                 (nexthdr == IPPROTO_ESP)       ||
+                 (nexthdr == IPPROTO_AH)        ||
+                 (nexthdr == IPPROTO_NONE)      ||
+                 (nexthdr == IPPROTO_DSTOPTS) );
 }
 
 /* Returns whether matches rule or not. */
 static inline int
-ip6_packet_match(const struct ipv6hdr *ipv6,
+ip6_packet_match(const struct sk_buff *skb,
+		 const struct ipv6hdr *ipv6,
 		 const char *indev,
 		 const char *outdev,
 		 const struct ip6t_ip6 *ip6info,
@@ -227,17 +210,58 @@ ip6_packet_match(const struct ipv6hdr *ipv6,
 	/* look for the desired protocol header */
 	if((ip6info->flags & IP6T_F_PROTO)) {
 		u_int8_t currenthdr = ipv6->nexthdr;
-		u_int8_t *hdrptr;
-		hdrptr = (u_int8_t *)(ipv6 + 1);
-		do {
-			if (ip6info->proto == currenthdr) {
-				if(ip6info->invflags & IP6T_INV_PROTO)
-					return 0;
-				return 1;
+		struct ipv6_opt_hdr *hdrptr;
+		u_int16_t ptr;		/* Header offset in skb */
+		u_int16_t hdrlen;	/* Header */
+
+		ptr = IPV6_HDR_LEN;
+
+		while (ip6t_ext_hdr(currenthdr)) {
+	                /* Is there enough space for the next ext header? */
+	                if (skb->len - ptr < IPV6_OPTHDR_LEN)
+	                        return 0;
+
+			/* NONE or ESP: there isn't protocol part */
+			/* If we want to count these packets in '-p all',
+			 * we will change the return 0 to 1*/
+			if ((currenthdr == IPPROTO_NONE) || 
+				(currenthdr == IPPROTO_ESP))
+				return 0;
+
+	                hdrptr = (struct ipv6_opt_hdr *)(skb->data + ptr);
+
+			/* Size calculation */
+	                if (currenthdr == IPPROTO_FRAGMENT) {
+	                        hdrlen = 8;
+	                } else if (currenthdr == IPPROTO_AH)
+	                        hdrlen = (hdrptr->hdrlen+2)<<2;
+	                else
+	                        hdrlen = ipv6_optlen(hdrptr);
+
+			currenthdr = hdrptr->nexthdr;
+	                ptr += hdrlen;
+			/* ptr is too large */
+	                if ( ptr > skb->len ) 
+				return 0;
+		}
+
+		/* currenthdr contains the protocol header */
+
+		dprintf("Packet protocol %hi ?= %s%hi.\n",
+				currenthdr, 
+				ip6info->invflags & IP6T_INV_PROTO ? "!":"",
+				ip6info->proto);
+
+		if (ip6info->proto == currenthdr) {
+			if(ip6info->invflags & IP6T_INV_PROTO) {
+				return 0;
 			}
-			currenthdr = ip6_nexthdr(currenthdr, hdrptr);
-		} while(currenthdr);
-		if (!(ip6info->invflags & IP6T_INV_PROTO))
+			return 1;
+		}
+
+		/* We need match for the '-p all', too! */
+		if ((ip6info->proto != 0) &&
+			!(ip6info->invflags & IP6T_INV_PROTO))
 			return 0;
 	}
 	return 1;
@@ -359,7 +383,8 @@ ip6t_do_table(struct sk_buff **pskb,
 		IP_NF_ASSERT(e);
 		IP_NF_ASSERT(back);
 		(*pskb)->nfcache |= e->nfcache;
-		if (ip6_packet_match(ipv6, indev, outdev, &e->ipv6, offset)) {
+		if (ip6_packet_match(*pskb, ipv6, indev, outdev, 
+			&e->ipv6, offset)) {
 			struct ip6t_entry_target *t;
 
 			if (IP6T_MATCH_ITERATE(e, do_match,
@@ -1826,6 +1851,7 @@ EXPORT_SYMBOL(ip6t_register_match);
 EXPORT_SYMBOL(ip6t_unregister_match);
 EXPORT_SYMBOL(ip6t_register_target);
 EXPORT_SYMBOL(ip6t_unregister_target);
+EXPORT_SYMBOL(ip6t_ext_hdr);
 
 module_init(init);
 module_exit(fini);

net/ipv6/netfilter/ip6t_eui64.c

+/* Kernel module to match EUI64 address parameters. */
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/ipv6.h>
+#include <linux/if_ether.h>
+
+#include <linux/netfilter_ipv6/ip6_tables.h>
+
+static int
+match(const struct sk_buff *skb,
+      const struct net_device *in,
+      const struct net_device *out,
+      const void *matchinfo,
+      int offset,
+      const void *hdr,
+      u_int16_t datalen,
+      int *hotdrop)
+{
+
+    unsigned char eui64[8];
+    int i=0;
+
+     if ( !(skb->mac.raw >= skb->head
+                && (skb->mac.raw + ETH_HLEN) <= skb->data)
+                && offset != 0) {
+                        *hotdrop = 1;
+                        return 0;
+                }
+    
+    memset(eui64, 0, sizeof(eui64));
+
+    if (skb->mac.ethernet->h_proto == ntohs(ETH_P_IPV6)) {
+      if (skb->nh.ipv6h->version == 0x6) { 
+         memcpy(eui64, skb->mac.ethernet->h_source, 3);
+         memcpy(eui64 + 5, skb->mac.ethernet->h_source + 3, 3);
+	 eui64[3]=0xff;
+	 eui64[4]=0xfe;
+	 eui64[0] |= 0x02;
+
+	 i=0;
+	 while ((skb->nh.ipv6h->saddr.in6_u.u6_addr8[8+i] ==
+			 eui64[i]) && (i<8)) i++;
+
+	 if ( i == 8 )
+	 	return 1;
+      }
+    }
+
+    return 0;
+}
+
+static int
+ip6t_eui64_checkentry(const char *tablename,
+		   const struct ip6t_ip6 *ip,
+		   void *matchinfo,
+		   unsigned int matchsize,
+		   unsigned int hook_mask)
+{
+	if (hook_mask
+	    & ~((1 << NF_IP6_PRE_ROUTING) | (1 << NF_IP6_LOCAL_IN) |
+		(1 << NF_IP6_PRE_ROUTING) )) {
+		printk("ip6t_eui64: only valid for PRE_ROUTING, LOCAL_IN or FORWARD.\n");
+		return 0;
+	}
+
+	if (matchsize != IP6T_ALIGN(sizeof(int)))
+		return 0;
+
+	return 1;
+}
+
+static struct ip6t_match eui64_match
+= { { NULL, NULL }, "eui64", &match, &ip6t_eui64_checkentry, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+	return ip6t_register_match(&eui64_match);
+}
+
+static void __exit fini(void)
+{
+	ip6t_unregister_match(&eui64_match);
+}
+
+module_init(init);
+module_exit(fini);
+MODULE_DESCRIPTION("IPv6 EUI64 address checking match");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Andras Kis-Szabo <kisza@sch.bme.hu>");

net/ipv6/netfilter/ip6t_length.c

+/* Length Match - IPv6 Port */
+
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/netfilter_ipv6/ip6t_length.h>
+#include <linux/netfilter_ipv6/ip6_tables.h>
+
+static int
+match(const struct sk_buff *skb,
+      const struct net_device *in,
+      const struct net_device *out,
+      const void *matchinfo,
+      int offset,
+      const void *hdr,
+      u_int16_t datalen,
+      int *hotdrop)
+{
+	const struct ip6t_length_info *info = matchinfo;
+	u_int16_t pktlen = ntohs(skb->nh.ipv6h->payload_len) + sizeof(struct ipv6hdr);
+	
+	return (pktlen >= info->min && pktlen <= info->max) ^ info->invert;
+}
+
+static int
+checkentry(const char *tablename,
+           const struct ip6t_ip6 *ip,
+           void *matchinfo,
+           unsigned int matchsize,
+           unsigned int hook_mask)
+{
+	if (matchsize != IP6T_ALIGN(sizeof(struct ip6t_length_info)))
+		return 0;
+
+	return 1;
+}
+
+static struct ip6t_match length_match
+= { { NULL, NULL }, "length", &match, &checkentry, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+	return ip6t_register_match(&length_match);
+}
+
+static void __exit fini(void)
+{
+	ip6t_unregister_match(&length_match);
+}
+
+module_init(init);
+module_exit(fini);

net/llc/llc_actn.c

@@ -27,7 +27,7 @@
 static void llc_station_ack_tmr_callback(unsigned long timeout_data);
 
 int llc_station_ac_start_ack_timer(struct llc_station *station,
-				   struct llc_station_state_ev *ev)
+				   struct sk_buff *skb)
 {
 	del_timer(&station->ack_timer);
 	station->ack_timer.expires  = jiffies + LLC_ACK_TIME * HZ;
@@ -39,98 +39,94 @@ int llc_station_ac_start_ack_timer(struct llc_station *station,
 }
 
 int llc_station_ac_set_retry_cnt_0(struct llc_station *station,
-				   struct llc_station_state_ev *ev)
+				   struct sk_buff *skb)
 {
 	station->retry_count = 0;
 	return 0;
 }
 
 int llc_station_ac_inc_retry_cnt_by_1(struct llc_station *station,
-				      struct llc_station_state_ev *ev)
+				      struct sk_buff *skb)
 {
 	station->retry_count++;
 	return 0;
 }
 
 int llc_station_ac_set_xid_r_cnt_0(struct llc_station *station,
-				   struct llc_station_state_ev *ev)
+				   struct sk_buff *skb)
 {
 	station->xid_r_count = 0;
 	return 0;
 }
 
 int llc_station_ac_inc_xid_r_cnt_by_1(struct llc_station *station,
-				      struct llc_station_state_ev *ev)
+				      struct sk_buff *skb)
 {
 	station->xid_r_count++;
 	return 0;
 }
 
 int llc_station_ac_send_null_dsap_xid_c(struct llc_station *station,
-					struct llc_station_state_ev *ev)
+					struct sk_buff *skb)
 {
 	int rc = 1;
-	struct sk_buff *skb = llc_alloc_frame();
+	struct sk_buff *nskb = llc_alloc_frame();
 
-	if (!skb)
+	if (!nskb)
 		goto out;
 	rc = 0;
-	llc_pdu_header_init(skb, LLC_PDU_TYPE_U, 0, 0, LLC_PDU_CMD);
-	llc_pdu_init_as_xid_cmd(skb, LLC_XID_NULL_CLASS_2, 127);
-	lan_hdrs_init(skb, station->mac_sa, station->mac_sa);
-	llc_station_send_pdu(station, skb);
+	llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, 0, LLC_PDU_CMD);
+	llc_pdu_init_as_xid_cmd(nskb, LLC_XID_NULL_CLASS_2, 127);
+	lan_hdrs_init(nskb, station->mac_sa, station->mac_sa);
+	llc_station_send_pdu(station, nskb);
 out:
 	return rc;
 }
 
 int llc_station_ac_send_xid_r(struct llc_station *station,
-			      struct llc_station_state_ev *ev)
+			      struct sk_buff *skb)
 {
 	u8 mac_da[ETH_ALEN], dsap;
 	int rc = 1;
-	struct sk_buff *ev_skb;
-	struct sk_buff* skb = llc_alloc_frame();
+	struct sk_buff* nskb = llc_alloc_frame();
 
-	if (!skb)
+	if (!nskb)
 		goto out;
 	rc = 0;
-	ev_skb = ev->data.pdu.skb;
-	skb->dev = ev_skb->dev;
-	llc_pdu_decode_sa(ev_skb, mac_da);
-	llc_pdu_decode_ssap(ev_skb, &dsap);
-	llc_pdu_header_init(skb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP);
-	llc_pdu_init_as_xid_rsp(skb, LLC_XID_NULL_CLASS_2, 127);
-	lan_hdrs_init(skb, station->mac_sa, mac_da);
-	llc_station_send_pdu(station, skb);
+	nskb->dev = skb->dev;
+	llc_pdu_decode_sa(skb, mac_da);
+	llc_pdu_decode_ssap(skb, &dsap);
+	llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP);
+	llc_pdu_init_as_xid_rsp(nskb, LLC_XID_NULL_CLASS_2, 127);
+	lan_hdrs_init(nskb, station->mac_sa, mac_da);
+	llc_station_send_pdu(station, nskb);
 out:
 	return rc;
 }
 
 int llc_station_ac_send_test_r(struct llc_station *station,
-			       struct llc_station_state_ev *ev)
+			       struct sk_buff *skb)
 {
 	u8 mac_da[ETH_ALEN], dsap;
 	int rc = 1;
-	struct sk_buff *ev_skb;
-	struct sk_buff *skb = llc_alloc_frame();
+	struct sk_buff *nskb = llc_alloc_frame();
 
-	if (!skb)
+	if (!nskb)
 		goto out;
 	rc = 0;
-	ev_skb = ev->data.pdu.skb;
-	skb->dev = ev_skb->dev;
-	llc_pdu_decode_sa(ev_skb, mac_da);
-	llc_pdu_decode_ssap(ev_skb, &dsap);
-	llc_pdu_header_init(skb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP);
-       	llc_pdu_init_as_test_rsp(skb, ev_skb);
-	lan_hdrs_init(skb, station->mac_sa, mac_da);
-	llc_station_send_pdu(station, skb);
+	nskb->dev = skb->dev;
+	llc_pdu_decode_sa(skb, mac_da);
+	llc_pdu_decode_ssap(skb, &dsap);
+	llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, dsap, LLC_PDU_RSP);
+       	llc_pdu_init_as_test_rsp(nskb, skb);
+	lan_hdrs_init(nskb, station->mac_sa, mac_da);
+	llc_station_send_pdu(station, nskb);
 out:
 	return rc;
 }
 
 int llc_station_ac_report_status(struct llc_station *station,
-				 struct llc_station_state_ev *ev)
+				 struct sk_buff *skb)
 {
 	return 0;
 }
@@ -138,13 +134,14 @@ int llc_station_ac_report_status(struct llc_station *station,
 static void llc_station_ack_tmr_callback(unsigned long timeout_data)
 {
 	struct llc_station *station = (struct llc_station *)timeout_data;
-	struct llc_station_state_ev *ev;
+	struct sk_buff *skb = alloc_skb(1, GFP_ATOMIC);
 
 	station->ack_tmr_running = 0;
-	ev = llc_station_alloc_ev(station);
-	if (ev) {
+	if (skb) {
+		struct llc_station_state_ev *ev = llc_station_ev(skb);
+
 		ev->type = LLC_STATION_EV_TYPE_ACK_TMR;
 		ev->data.tmr.timer_specific = NULL;
-		llc_station_send_ev(station, ev);
+		llc_station_send_ev(station, skb);
 	}
 }

net/llc/llc_conn.c

@@ -28,56 +28,37 @@
 
 static int llc_find_offset(int state, int ev_type);
 static void llc_conn_send_pdus(struct sock *sk);
-static int llc_conn_service(struct sock *sk, struct llc_conn_state_ev *ev);
+static int llc_conn_service(struct sock *sk, struct sk_buff *skb);
 static int llc_exec_conn_trans_actions(struct sock *sk,
 				       struct llc_conn_state_trans *trans,
-				       struct llc_conn_state_ev *ev);
-static struct llc_conn_state_trans *
-	     llc_qualify_conn_ev(struct sock *sk, struct llc_conn_state_ev *ev);
+				       struct sk_buff *ev);
+static struct llc_conn_state_trans *llc_qualify_conn_ev(struct sock *sk,
+							struct sk_buff *skb);
 
 /* Offset table on connection states transition diagram */
 static int llc_offset_table[NBR_CONN_STATES][NBR_CONN_EV];
 
-/**
- *	llc_conn_alloc_event: allocates an event
- *	@sk: socket that event is associated
- *
- *	Returns pointer to allocated connection on success, %NULL on failure.
- */
-struct llc_conn_state_ev *llc_conn_alloc_ev(struct sock *sk)
-{
-	struct llc_conn_state_ev *ev = NULL;
-
-	/* verify connection is valid, active and open */
-	if (llc_sk(sk)->state != LLC_CONN_OUT_OF_SVC) {
-		/* get event structure to build a station event */
-		ev = kmalloc(sizeof(*ev), GFP_ATOMIC);
-		if (ev)
-			memset(ev, 0, sizeof(*ev));
-	}
-	return ev;
-}
-
 /**
  *	llc_conn_send_event - sends event to connection state machine
  *	@sk: connection
- *	@ev: occurred event
+ *	@skb: occurred event
  *
  *	Sends an event to connection state machine. after processing event
  *	(executing it's actions and changing state), upper layer will be
  *	indicated or confirmed, if needed. Returns 0 for success, 1 for
  *	failure. The socket lock has to be held before calling this function.
  */
-int llc_conn_send_ev(struct sock *sk, struct llc_conn_state_ev *ev)
+int llc_conn_send_ev(struct sock *sk, struct sk_buff *skb)
 {
 	/* sending event to state machine */
-	int rc = llc_conn_service(sk, ev);
+	int rc = llc_conn_service(sk, skb);
 	struct llc_opt *llc = llc_sk(sk);
+	struct llc_conn_state_ev *ev = llc_conn_ev(skb);
 	u8 flag = ev->flag;
 	struct llc_prim_if_block *ind_prim = ev->ind_prim;
 	struct llc_prim_if_block *cfm_prim = ev->cfm_prim;
 
-	llc_conn_free_ev(ev);
+	llc_conn_free_ev(skb);
 #ifdef THIS_BREAKS_DISCONNECT_NOTIFICATION_BADLY
 	/* check if the connection was freed by the state machine by
 	 * means of llc_conn_disc */
@@ -125,15 +106,14 @@ void llc_conn_send_pdu(struct sock *sk, struct sk_buff *skb)
  *	llc_conn_rtn_pdu - sends received data pdu to upper layer
  *	@sk: Active connection
  *	@skb: Received data frame
- *	@ev: Occurred event
  *
  *	Sends received data pdu to upper layer (by using indicate function).
  *	Prepares service parameters (prim and prim_data). calling indication
  *	function will be done in llc_conn_send_ev.
  */
-void llc_conn_rtn_pdu(struct sock *sk, struct sk_buff *skb,
-		      struct llc_conn_state_ev *ev)
+void llc_conn_rtn_pdu(struct sock *sk, struct sk_buff *skb)
 {
+	struct llc_conn_state_ev *ev = llc_conn_ev(skb);
 	struct llc_opt *llc = llc_sk(sk);
 	struct llc_sap *sap = llc->sap;
 	struct llc_prim_if_block *prim = &sap->llc_ind_prim;
@@ -291,34 +271,37 @@ static void llc_conn_send_pdus(struct sock *sk)
 
 /**
  *	llc_conn_free_ev - free event
- *	@ev: event to free
+ *	@skb: event to free
  *
  *	Free allocated event.
  */
-void llc_conn_free_ev(struct llc_conn_state_ev *ev)
+void llc_conn_free_ev(struct sk_buff *skb)
 {
+	struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+
 	if (ev->type == LLC_CONN_EV_TYPE_PDU) {
-		/* free the frame that binded to this event */
-		struct llc_pdu_sn *pdu =
-				(struct llc_pdu_sn *)ev->data.pdu.skb->nh.raw;
+		/* free the frame that is bound to this event */
+		struct llc_pdu_sn *pdu = llc_pdu_sn_hdr(skb);
 
 		if (LLC_PDU_TYPE_IS_I(pdu) || !ev->flag || !ev->ind_prim)
-			kfree_skb(ev->data.pdu.skb);
-	}
-	/* free event structure to free list of the same */
-	kfree(ev);
+			kfree_skb(skb);
+	} else if (ev->type == LLC_CONN_EV_TYPE_PRIM &&
+		   ev->data.prim.prim != LLC_DATA_PRIM)
+		kfree_skb(skb);
+	else if (ev->type == LLC_CONN_EV_TYPE_P_TMR)
+		kfree_skb(skb);
 }
 
 /**
  *	llc_conn_service - finds transition and changes state of connection
  *	@sk: connection
- *	@ev: happened event
+ *	@skb: happened event
  *
  *	This function finds transition that matches with happened event, then
  *	executes related actions and finally changes state of connection.
  *	Returns 0 for success, 1 for failure.
  */
-static int llc_conn_service(struct sock *sk, struct llc_conn_state_ev *ev)
+static int llc_conn_service(struct sock *sk, struct sk_buff *skb)
 {
 	int rc = 1;
 	struct llc_conn_state_trans *trans;
@@ -326,9 +309,9 @@ static int llc_conn_service(struct sock *sk, struct llc_conn_state_ev *ev)
 	if (llc_sk(sk)->state > NBR_CONN_STATES)
 		goto out;
 	rc = 0;
-	trans = llc_qualify_conn_ev(sk, ev);
+	trans = llc_qualify_conn_ev(sk, skb);
 	if (trans) {
-		rc = llc_exec_conn_trans_actions(sk, trans, ev);
+		rc = llc_exec_conn_trans_actions(sk, trans, skb);
 		if (!rc && trans->next_state != NO_STATE_CHANGE)
 			llc_sk(sk)->state = trans->next_state;
 	}
@@ -339,26 +322,28 @@ static int llc_conn_service(struct sock *sk, struct llc_conn_state_ev *ev)
 /**
  *	llc_qualify_conn_ev - finds transition for event
  *	@sk: connection
- *	@ev: happened event
+ *	@skb: happened event
  *
  *	This function finds transition that matches with happened event.
  *	Returns pointer to found transition on success, %NULL otherwise.
  */
-static struct llc_conn_state_trans *
-	     llc_qualify_conn_ev(struct sock *sk, struct llc_conn_state_ev *ev)
+static struct llc_conn_state_trans *llc_qualify_conn_ev(struct sock *sk,
+							struct sk_buff *skb)
 {
 	struct llc_conn_state_trans **next_trans;
 	llc_conn_ev_qfyr_t *next_qualifier;
+	struct llc_conn_state_ev *ev = llc_conn_ev(skb);
+	struct llc_opt *llc = llc_sk(sk);
 	struct llc_conn_state *curr_state =
-				&llc_conn_state_table[llc_sk(sk)->state - 1];
+					&llc_conn_state_table[llc->state - 1];
 
 	/* search thru events for this state until
 	 * list exhausted or until no more
 	 */
 	for (next_trans = curr_state->transitions +
-		llc_find_offset(llc_sk(sk)->state - 1, ev->type);
+		llc_find_offset(llc->state - 1, ev->type);
 	     (*next_trans)->ev; next_trans++) {
-		if (!((*next_trans)->ev)(sk, ev)) {
+		if (!((*next_trans)->ev)(sk, skb)) {
 			/* got POSSIBLE event match; the event may require
 			 * qualification based on the values of a number of
 			 * state flags; if all qualifications are met (i.e.,
@@ -367,7 +352,7 @@ static struct llc_conn_state_trans *
 			 */
 			for (next_qualifier = (*next_trans)->ev_qualifiers;
 			     next_qualifier && *next_qualifier &&
-			     !(*next_qualifier)(sk, ev); next_qualifier++)
+			     !(*next_qualifier)(sk, skb); next_qualifier++)
 				/* nothing */;
 			if (!next_qualifier || !*next_qualifier)
 				/* all qualifiers executed successfully; this is
@@ -384,7 +369,7 @@ static struct llc_conn_state_trans *
  *	llc_exec_conn_trans_actions - executes related actions
  *	@sk: connection
  *	@trans: transition that it's actions must be performed
- *	@ev: happened event
+ *	@skb: happened event
  *
  *	Executes actions that is related to happened event. Returns 0 for
  *	success, 1 to indicate failure of at least one action or 2 if the
@@ -392,14 +377,14 @@ static struct llc_conn_state_trans *
  */
 static int llc_exec_conn_trans_actions(struct sock *sk,
 				       struct llc_conn_state_trans *trans,
-				       struct llc_conn_state_ev *ev)
+				       struct sk_buff *skb)
 {
 	int rc = 0;
 	llc_conn_action_t *next_action;
 
 	for (next_action = trans->ev_actions;
 	     next_action && *next_action; next_action++) {
-		int rc2 = (*next_action)(sk, ev);
+		int rc2 = (*next_action)(sk, skb);
 
 		if (rc2 == 2) {
 			rc = rc2;

net/llc/llc_mac.c

@@ -27,6 +27,12 @@
 #include <net/llc_s_ev.h>
 #include <linux/trdevice.h>
 
+#if 1
+#define dprintk(args...) printk(KERN_DEBUG args)
+#else
+#define dprintk(args...)
+#endif
+
 /* function prototypes */
 static void fix_up_incoming_skb(struct sk_buff *skb);
 
@@ -46,7 +52,7 @@ int mac_send_pdu(struct sk_buff *skb)
 	int pri = GFP_ATOMIC, rc = -1;
 
 	if (!skb->dev) {
-		printk(KERN_ERR "%s: skb->dev == NULL!", __FUNCTION__);
+		dprintk(KERN_ERR "%s: skb->dev == NULL!", __FUNCTION__);
 		goto out;
 	}
 	if (skb->sk)
@@ -83,7 +89,7 @@ int mac_indicate(struct sk_buff *skb, struct net_device *dev,
 	 * receives, do not try to analyse it.
 	 */
 	if (skb->pkt_type == PACKET_OTHERHOST) {
-		printk(KERN_INFO "%s: PACKET_OTHERHOST\n", __FUNCTION__);
+		dprintk(KERN_INFO "%s: PACKET_OTHERHOST\n", __FUNCTION__);
 		goto drop;
 	}
 	skb = skb_share_check(skb, GFP_ATOMIC);
@@ -140,7 +146,8 @@ int mac_indicate(struct sk_buff *skb, struct net_device *dev,
 			rc = llc_pdu_router(llc_sk(sk)->sap, sk, skb,
 					    LLC_TYPE_2);
 		} else {
-			skb->cb[0] = LLC_PACKET;
+			dprintk(KERN_INFO "%s: add to backlog\n", __FUNCTION__);
+			llc_set_backlog_type(skb, LLC_PACKET);
 			sk_add_backlog(sk, skb);
 			rc = 0;
 		}
@@ -207,38 +214,27 @@ int llc_pdu_router(struct llc_sap *sap, struct sock* sk,
 
 	if (!pdu->dsap) {
 		struct llc_station *station = llc_station_get();
-		struct llc_station_state_ev *stat_ev =
-						  llc_station_alloc_ev(station);
-		if (stat_ev) {
-			stat_ev->type		 = LLC_STATION_EV_TYPE_PDU;
-			stat_ev->data.pdu.skb	 = skb;
-			stat_ev->data.pdu.reason = 0;
-			llc_station_send_ev(station, stat_ev);
-		} else
-			rc = -ENOMEM;
+		struct llc_station_state_ev *ev = llc_station_ev(skb);
+
+		ev->type	    = LLC_STATION_EV_TYPE_PDU;
+		ev->data.pdu.reason = 0;
+		llc_station_send_ev(station, skb);
 	} else if (type == LLC_TYPE_1) {
-		struct llc_sap_state_ev *sap_ev = llc_sap_alloc_ev(sap);
+		struct llc_sap_state_ev *ev = llc_sap_ev(skb);
 
-		if (sap_ev) {
-			sap_ev->type		= LLC_SAP_EV_TYPE_PDU;
-			sap_ev->data.pdu.skb	= skb;
-			sap_ev->data.pdu.reason = 0;
-			llc_sap_send_ev(sap, sap_ev);
-		} else
-			rc = -ENOMEM;
+		ev->type	    = LLC_SAP_EV_TYPE_PDU;
+		ev->data.pdu.reason = 0;
+		llc_sap_send_ev(sap, skb);
 	} else if (type == LLC_TYPE_2) {
-		struct llc_conn_state_ev *conn_ev = llc_conn_alloc_ev(sk);
+		struct llc_conn_state_ev *ev = llc_conn_ev(skb);
 		struct llc_opt *llc = llc_sk(sk);
 
 		if (!llc->dev)
 			llc->dev = skb->dev;
-		if (conn_ev) {
-			conn_ev->type		 = LLC_CONN_EV_TYPE_PDU;
-			conn_ev->data.pdu.skb	 = skb;
-			conn_ev->data.pdu.reason = 0;
-			rc = llc_conn_send_ev(sk, conn_ev);
-		} else
-			rc = -ENOMEM;
+
+		ev->type	    = LLC_CONN_EV_TYPE_PDU;
+		ev->data.pdu.reason = 0;
+		rc = llc_conn_send_ev(sk, skb);
 	} else
 		rc = -EINVAL;
 	return rc;