};
#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 */
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_inuse_add(sock_net(sk), sk->sk_prot, -1);
- }
- 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)
{
extern int udp_lib_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
extern int udp_lib_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen,
+ char __user *optval, unsigned int optlen,
int (*push_pending_frames)(struct sock *));
-DECLARE_SNMP_STAT(struct udp_mib, udp_statistics);
-DECLARE_SNMP_STAT(struct udp_mib, udp_stats_in6);
-
-/* UDP-Lite does not have a standardized MIB yet, so we inherit from UDP */
-DECLARE_SNMP_STAT(struct udp_mib, udplite_statistics);
-DECLARE_SNMP_STAT(struct udp_mib, udplite_stats_in6);
+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 UDP6_INC_STATS_BH(field, is_udplite) do { \
- if (is_udplite) SNMP_INC_STATS_BH(udplite_stats_in6, field); \
- else SNMP_INC_STATS_BH(udp_stats_in6, field); } while(0)
-#define UDP6_INC_STATS_USER(field, is_udplite) do { \
- if (is_udplite) SNMP_INC_STATS_USER(udplite_stats_in6, field); \
- else SNMP_INC_STATS_USER(udp_stats_in6, 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(field, 0); \
+ UDP_INC_STATS_BH(sock_net(sk), field, 0); \
else \
- UDP6_INC_STATS_BH(field, 0); \
+ UDP6_INC_STATS_BH(sock_net(sk), field, 0); \
} while (0);
#else
-#define UDPX_INC_STATS_BH(sk, field) UDP_INC_STATS_BH(field, 0)
+#define UDPX_INC_STATS_BH(sk, field) UDP_INC_STATS_BH(sock_net(sk), field, 0)
#endif
/* /proc */
struct udp_seq_afinfo {
char *name;
sa_family_t family;
- struct hlist_head *hashtable;
+ struct udp_table *udp_table;
struct file_operations seq_fops;
struct seq_operations seq_ops;
};
struct seq_net_private p;
sa_family_t family;
int bucket;
- struct hlist_head *hashtable;
+ struct udp_table *udp_table;
};
#ifdef CONFIG_PROC_FS
#endif
extern void udp_init(void);
+
+extern int udp4_ufo_send_check(struct sk_buff *skb);
+extern struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb, int features);
#endif /* _UDP_H */