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Diffstat (limited to 'include/net/inet_hashtables.h')
-rw-r--r--include/net/inet_hashtables.h120
1 files changed, 57 insertions, 63 deletions
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index 67a8fa098e3..dd1950a7e27 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -37,12 +37,11 @@
#include <asm/byteorder.h>
/* This is for all connections with a full identity, no wildcards.
- * One chain is dedicated to TIME_WAIT sockets.
- * I'll experiment with dynamic table growth later.
+ * The 'e' prefix stands for Establish, but we really put all sockets
+ * but LISTEN ones.
*/
struct inet_ehash_bucket {
struct hlist_nulls_head chain;
- struct hlist_nulls_head twchain;
};
/* There are a few simple rules, which allow for local port reuse by
@@ -81,7 +80,9 @@ struct inet_bind_bucket {
struct net *ib_net;
#endif
unsigned short port;
- signed short fastreuse;
+ signed char fastreuse;
+ signed char fastreuseport;
+ kuid_t fastuid;
int num_owners;
struct hlist_node node;
struct hlist_head owners;
@@ -92,8 +93,8 @@ static inline struct net *ib_net(struct inet_bind_bucket *ib)
return read_pnet(&ib->ib_net);
}
-#define inet_bind_bucket_for_each(tb, pos, head) \
- hlist_for_each_entry(tb, pos, head, node)
+#define inet_bind_bucket_for_each(tb, head) \
+ hlist_for_each_entry(tb, head, node)
struct inet_bind_hashbucket {
spinlock_t lock;
@@ -121,7 +122,6 @@ struct inet_hashinfo {
*
* TCP_ESTABLISHED <= sk->sk_state < TCP_CLOSE
*
- * TIME_WAIT sockets use a separate chain (twchain).
*/
struct inet_ehash_bucket *ehash;
spinlock_t *ehash_locks;
@@ -216,22 +216,21 @@ static inline void inet_ehash_locks_free(struct inet_hashinfo *hashinfo)
}
}
-extern struct inet_bind_bucket *
- inet_bind_bucket_create(struct kmem_cache *cachep,
- struct net *net,
- struct inet_bind_hashbucket *head,
- const unsigned short snum);
-extern void inet_bind_bucket_destroy(struct kmem_cache *cachep,
- struct inet_bind_bucket *tb);
+struct inet_bind_bucket *
+inet_bind_bucket_create(struct kmem_cache *cachep, struct net *net,
+ struct inet_bind_hashbucket *head,
+ const unsigned short snum);
+void inet_bind_bucket_destroy(struct kmem_cache *cachep,
+ struct inet_bind_bucket *tb);
-static inline int inet_bhashfn(struct net *net,
- const __u16 lport, const int bhash_size)
+static inline int inet_bhashfn(struct net *net, const __u16 lport,
+ const int bhash_size)
{
return (lport + net_hash_mix(net)) & (bhash_size - 1);
}
-extern void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb,
- const unsigned short snum);
+void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb,
+ const unsigned short snum);
/* These can have wildcards, don't try too hard. */
static inline int inet_lhashfn(struct net *net, const unsigned short num)
@@ -245,27 +244,30 @@ static inline int inet_sk_listen_hashfn(const struct sock *sk)
}
/* Caller must disable local BH processing. */
-extern int __inet_inherit_port(struct sock *sk, struct sock *child);
+int __inet_inherit_port(struct sock *sk, struct sock *child);
-extern void inet_put_port(struct sock *sk);
+void inet_put_port(struct sock *sk);
void inet_hashinfo_init(struct inet_hashinfo *h);
-extern int __inet_hash_nolisten(struct sock *sk, struct inet_timewait_sock *tw);
-extern void inet_hash(struct sock *sk);
-extern void inet_unhash(struct sock *sk);
+int __inet_hash_nolisten(struct sock *sk, struct inet_timewait_sock *tw);
+void inet_hash(struct sock *sk);
+void inet_unhash(struct sock *sk);
-extern struct sock *__inet_lookup_listener(struct net *net,
- struct inet_hashinfo *hashinfo,
- const __be32 daddr,
- const unsigned short hnum,
- const int dif);
+struct sock *__inet_lookup_listener(struct net *net,
+ struct inet_hashinfo *hashinfo,
+ const __be32 saddr, const __be16 sport,
+ const __be32 daddr,
+ const unsigned short hnum,
+ const int dif);
static inline struct sock *inet_lookup_listener(struct net *net,
struct inet_hashinfo *hashinfo,
+ __be32 saddr, __be16 sport,
__be32 daddr, __be16 dport, int dif)
{
- return __inet_lookup_listener(net, hashinfo, daddr, ntohs(dport), dif);
+ return __inet_lookup_listener(net, hashinfo, saddr, sport,
+ daddr, ntohs(dport), dif);
}
/* Socket demux engine toys. */
@@ -290,38 +292,27 @@ static inline struct sock *inet_lookup_listener(struct net *net,
#define INET_ADDR_COOKIE(__name, __saddr, __daddr) \
const __addrpair __name = (__force __addrpair) ( \
(((__force __u64)(__be32)(__saddr)) << 32) | \
- ((__force __u64)(__be32)(__daddr)));
+ ((__force __u64)(__be32)(__daddr)))
#else /* __LITTLE_ENDIAN */
#define INET_ADDR_COOKIE(__name, __saddr, __daddr) \
const __addrpair __name = (__force __addrpair) ( \
(((__force __u64)(__be32)(__daddr)) << 32) | \
- ((__force __u64)(__be32)(__saddr)));
+ ((__force __u64)(__be32)(__saddr)))
#endif /* __BIG_ENDIAN */
#define INET_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif) \
- ((inet_sk(__sk)->inet_portpair == (__ports)) && \
- (inet_sk(__sk)->inet_addrpair == (__cookie)) && \
+ (((__sk)->sk_portpair == (__ports)) && \
+ ((__sk)->sk_addrpair == (__cookie)) && \
(!(__sk)->sk_bound_dev_if || \
((__sk)->sk_bound_dev_if == (__dif))) && \
net_eq(sock_net(__sk), (__net)))
-#define INET_TW_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif)\
- ((inet_twsk(__sk)->tw_portpair == (__ports)) && \
- (inet_twsk(__sk)->tw_addrpair == (__cookie)) && \
- (!(__sk)->sk_bound_dev_if || \
- ((__sk)->sk_bound_dev_if == (__dif))) && \
- net_eq(sock_net(__sk), (__net)))
#else /* 32-bit arch */
-#define INET_ADDR_COOKIE(__name, __saddr, __daddr)
+#define INET_ADDR_COOKIE(__name, __saddr, __daddr) \
+ const int __name __deprecated __attribute__((unused))
+
#define INET_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif) \
- ((inet_sk(__sk)->inet_portpair == (__ports)) && \
- (inet_sk(__sk)->inet_daddr == (__saddr)) && \
- (inet_sk(__sk)->inet_rcv_saddr == (__daddr)) && \
- (!(__sk)->sk_bound_dev_if || \
- ((__sk)->sk_bound_dev_if == (__dif))) && \
- net_eq(sock_net(__sk), (__net)))
-#define INET_TW_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif) \
- ((inet_twsk(__sk)->tw_portpair == (__ports)) && \
- (inet_twsk(__sk)->tw_daddr == (__saddr)) && \
- (inet_twsk(__sk)->tw_rcv_saddr == (__daddr)) && \
+ (((__sk)->sk_portpair == (__ports)) && \
+ ((__sk)->sk_daddr == (__saddr)) && \
+ ((__sk)->sk_rcv_saddr == (__daddr)) && \
(!(__sk)->sk_bound_dev_if || \
((__sk)->sk_bound_dev_if == (__dif))) && \
net_eq(sock_net(__sk), (__net)))
@@ -333,10 +324,11 @@ static inline struct sock *inet_lookup_listener(struct net *net,
*
* Local BH must be disabled here.
*/
-extern struct sock * __inet_lookup_established(struct net *net,
- struct inet_hashinfo *hashinfo,
- const __be32 saddr, const __be16 sport,
- const __be32 daddr, const u16 hnum, const int dif);
+struct sock *__inet_lookup_established(struct net *net,
+ struct inet_hashinfo *hashinfo,
+ const __be32 saddr, const __be16 sport,
+ const __be32 daddr, const u16 hnum,
+ const int dif);
static inline struct sock *
inet_lookup_established(struct net *net, struct inet_hashinfo *hashinfo,
@@ -358,7 +350,8 @@ static inline struct sock *__inet_lookup(struct net *net,
struct sock *sk = __inet_lookup_established(net, hashinfo,
saddr, sport, daddr, hnum, dif);
- return sk ? : __inet_lookup_listener(net, hashinfo, daddr, hnum, dif);
+ return sk ? : __inet_lookup_listener(net, hashinfo, saddr, sport,
+ daddr, hnum, dif);
}
static inline struct sock *inet_lookup(struct net *net,
@@ -392,13 +385,14 @@ static inline struct sock *__inet_lookup_skb(struct inet_hashinfo *hashinfo,
iph->daddr, dport, inet_iif(skb));
}
-extern int __inet_hash_connect(struct inet_timewait_death_row *death_row,
- struct sock *sk,
- u32 port_offset,
- int (*check_established)(struct inet_timewait_death_row *,
- struct sock *, __u16, struct inet_timewait_sock **),
- int (*hash)(struct sock *sk, struct inet_timewait_sock *twp));
+int __inet_hash_connect(struct inet_timewait_death_row *death_row,
+ struct sock *sk, u32 port_offset,
+ int (*check_established)(struct inet_timewait_death_row *,
+ struct sock *, __u16,
+ struct inet_timewait_sock **),
+ int (*hash)(struct sock *sk,
+ struct inet_timewait_sock *twp));
-extern int inet_hash_connect(struct inet_timewait_death_row *death_row,
- struct sock *sk);
+int inet_hash_connect(struct inet_timewait_death_row *death_row,
+ struct sock *sk);
#endif /* _INET_HASHTABLES_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 23:25:48 +0000