X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Fnet%2Fudp.h;h=90e6ce56be6576826ef51f9c85d4ae0d91791dbb;hb=3ed4fd96b3188406ac5357d9290bcffa08c65cf6;hp=98755ebaf163cfe788b4117167cfeaf1a861f269;hpb=df2bc459a3ad71f8b44c358bf7169acf9caf4acd;p=safe%2Fjmp%2Flinux-2.6

diff --git a/include/net/udp.h b/include/net/udp.h
index 98755eb..90e6ce5 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -50,8 +50,15 @@ struct udp_skb_cb {
 };
 #define UDP_SKB_CB(__skb)	((struct udp_skb_cb *)((__skb)->cb))
 
-extern struct hlist_head udp_hash[UDP_HTABLE_SIZE];
-extern rwlock_t udp_hash_lock;
+struct udp_hslot {
+	struct hlist_nulls_head	head;
+	spinlock_t		lock;
+} __attribute__((aligned(2 * sizeof(long))));
+struct udp_table {
+	struct udp_hslot	hash[UDP_HTABLE_SIZE];
+};
+extern struct udp_table udp_table;
+extern void udp_table_init(struct udp_table *);
 
 
 /* Note: this must match 'valbool' in sock_setsockopt */
@@ -65,6 +72,13 @@ extern rwlock_t udp_hash_lock;
 
 extern struct proto udp_prot;
 
+extern atomic_t udp_memory_allocated;
+
+/* sysctl variables for udp */
+extern int sysctl_udp_mem[3];
+extern int sysctl_udp_rmem_min;
+extern int sysctl_udp_wmem_min;
+
 struct sk_buff;
 
 /*
@@ -103,21 +117,15 @@ static inline void udp_lib_hash(struct sock *sk)
 	BUG();
 }
 
-static inline void udp_lib_unhash(struct sock *sk)
-{
-	write_lock_bh(&udp_hash_lock);
-	if (sk_del_node_init(sk)) {
-		inet_sk(sk)->num = 0;
-		sock_prot_dec_use(sk->sk_prot);
-	}
-	write_unlock_bh(&udp_hash_lock);
-}
+extern void udp_lib_unhash(struct sock *sk);
 
 static inline void udp_lib_close(struct sock *sk, long timeout)
 {
 	sk_common_release(sk);
 }
 
+extern int	udp_lib_get_port(struct sock *sk, unsigned short snum,
+		int (*)(const struct sock*,const struct sock*));
 
 /* net/ipv4/udp.c */
 extern int	udp_get_port(struct sock *sk, unsigned short snum,
@@ -126,6 +134,7 @@ extern void	udp_err(struct sk_buff *, u32);
 
 extern int	udp_sendmsg(struct kiocb *iocb, struct sock *sk,
 			    struct msghdr *msg, size_t len);
+extern void	udp_flush_pending_frames(struct sock *sk);
 
 extern int	udp_rcv(struct sk_buff *skb);
 extern int	udp_ioctl(struct sock *sk, int cmd, unsigned long arg);
@@ -138,39 +147,64 @@ extern int 	udp_lib_setsockopt(struct sock *sk, int level, int optname,
 				   char __user *optval, int optlen,
 				   int (*push_pending_frames)(struct sock *));
 
-DECLARE_SNMP_STAT(struct udp_mib, udp_statistics);
+extern struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
+				    __be32 daddr, __be16 dport,
+				    int dif);
+
 /*
  * 	SNMP statistics for UDP and UDP-Lite
  */
-#define UDP_INC_STATS_USER(field, is_udplite)			       do {   \
-	if (is_udplite) SNMP_INC_STATS_USER(udplite_statistics, field);       \
-	else		SNMP_INC_STATS_USER(udp_statistics, field);  }  while(0)
-#define UDP_INC_STATS_BH(field, is_udplite) 			       do  {  \
-	if (is_udplite) SNMP_INC_STATS_BH(udplite_statistics, field);         \
-	else		SNMP_INC_STATS_BH(udp_statistics, field);    }  while(0)
+#define UDP_INC_STATS_USER(net, field, is_udplite)	      do { \
+	if (is_udplite) SNMP_INC_STATS_USER((net)->mib.udplite_statistics, field);       \
+	else		SNMP_INC_STATS_USER((net)->mib.udp_statistics, field);  }  while(0)
+#define UDP_INC_STATS_BH(net, field, is_udplite) 	      do { \
+	if (is_udplite) SNMP_INC_STATS_BH((net)->mib.udplite_statistics, field);         \
+	else		SNMP_INC_STATS_BH((net)->mib.udp_statistics, field);    }  while(0)
+
+#define UDP6_INC_STATS_BH(net, field, is_udplite) 	    do { \
+	if (is_udplite) SNMP_INC_STATS_BH((net)->mib.udplite_stats_in6, field);\
+	else		SNMP_INC_STATS_BH((net)->mib.udp_stats_in6, field);  \
+} while(0)
+#define UDP6_INC_STATS_USER(net, field, __lite)		    do { \
+	if (__lite) SNMP_INC_STATS_USER((net)->mib.udplite_stats_in6, field);  \
+	else	    SNMP_INC_STATS_USER((net)->mib.udp_stats_in6, field);      \
+} while(0)
+
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#define UDPX_INC_STATS_BH(sk, field) \
+	do { \
+		if ((sk)->sk_family == AF_INET) \
+			UDP_INC_STATS_BH(sock_net(sk), field, 0); \
+		else \
+			UDP6_INC_STATS_BH(sock_net(sk), field, 0); \
+	} while (0);
+#else
+#define UDPX_INC_STATS_BH(sk, field) UDP_INC_STATS_BH(sock_net(sk), field, 0)
+#endif
 
 /* /proc */
 struct udp_seq_afinfo {
-	struct module		*owner;
 	char			*name;
 	sa_family_t		family;
-	struct hlist_head	*hashtable;
-	int 			(*seq_show) (struct seq_file *m, void *v);
-	struct file_operations	*seq_fops;
+	struct udp_table	*udp_table;
+	struct file_operations	seq_fops;
+	struct seq_operations	seq_ops;
 };
 
 struct udp_iter_state {
+	struct seq_net_private  p;
 	sa_family_t		family;
-	struct hlist_head	*hashtable;
 	int			bucket;
-	struct seq_operations	seq_ops;
+	struct udp_table	*udp_table;
 };
 
 #ifdef CONFIG_PROC_FS
-extern int udp_proc_register(struct udp_seq_afinfo *afinfo);
-extern void udp_proc_unregister(struct udp_seq_afinfo *afinfo);
+extern int udp_proc_register(struct net *net, struct udp_seq_afinfo *afinfo);
+extern void udp_proc_unregister(struct net *net, struct udp_seq_afinfo *afinfo);
 
 extern int  udp4_proc_init(void);
 extern void udp4_proc_exit(void);
 #endif
+
+extern void udp_init(void);
 #endif	/* _UDP_H */