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[NETNS]: Tcp-v4 sockets per-net lookup.

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Add a net argument to inet_lookup and propagate it further
into lookup calls. Plus tune the __inet_check_established.

The dccp and inet_diag, which use that lookup functions
pass the init_net into them.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov
2008-01-31 05:06:40 -08:00
committed by David S. Miller
parent 941b1d22cc
commit c67499c0e7
5 changed files with 58 additions and 42 deletions
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48
include/net/inet_hashtables.h
View File

@@ -302,15 +302,17 @@ out:
wake_up(&hashinfo->lhash_wait);
}
extern struct sock *__inet_lookup_listener(struct inet_hashinfo *hashinfo,
extern struct sock *__inet_lookup_listener(struct net *net,
struct inet_hashinfo *hashinfo,
const __be32 daddr,
const unsigned short hnum,
const int dif);
static inline struct sock *inet_lookup_listener(struct inet_hashinfo *hashinfo,
__be32 daddr, __be16 dport, int dif)
static inline struct sock *inet_lookup_listener(struct net *net,
struct inet_hashinfo *hashinfo,
__be32 daddr, __be16 dport, int dif)
{
return __inet_lookup_listener(hashinfo, daddr, ntohs(dport), dif);
return __inet_lookup_listener(net, hashinfo, daddr, ntohs(dport), dif);
}
/* Socket demux engine toys. */
@@ -344,26 +346,26 @@ typedef __u64 __bitwise __addrpair;
(((__force __u64)(__be32)(__daddr)) << 32) | \
((__force __u64)(__be32)(__saddr)));
#endif /* __BIG_ENDIAN */
#define INET_MATCH(__sk, __hash, __cookie, __saddr, __daddr, __ports, __dif)\
(((__sk)->sk_hash == (__hash)) && \
#define INET_MATCH(__sk, __net, __hash, __cookie, __saddr, __daddr, __ports, __dif)\
(((__sk)->sk_hash == (__hash)) && ((__sk)->sk_net == (__net)) && \
((*((__addrpair *)&(inet_sk(__sk)->daddr))) == (__cookie)) && \
((*((__portpair *)&(inet_sk(__sk)->dport))) == (__ports)) && \
(!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
#define INET_TW_MATCH(__sk, __hash, __cookie, __saddr, __daddr, __ports, __dif)\
(((__sk)->sk_hash == (__hash)) && \
#define INET_TW_MATCH(__sk, __net, __hash, __cookie, __saddr, __daddr, __ports, __dif)\
(((__sk)->sk_hash == (__hash)) && ((__sk)->sk_net == (__net)) && \
((*((__addrpair *)&(inet_twsk(__sk)->tw_daddr))) == (__cookie)) && \
((*((__portpair *)&(inet_twsk(__sk)->tw_dport))) == (__ports)) && \
(!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
#else /* 32-bit arch */
#define INET_ADDR_COOKIE(__name, __saddr, __daddr)
#define INET_MATCH(__sk, __hash, __cookie, __saddr, __daddr, __ports, __dif) \
(((__sk)->sk_hash == (__hash)) && \
#define INET_MATCH(__sk, __net, __hash, __cookie, __saddr, __daddr, __ports, __dif) \
(((__sk)->sk_hash == (__hash)) && ((__sk)->sk_net == (__net)) && \
(inet_sk(__sk)->daddr == (__saddr)) && \
(inet_sk(__sk)->rcv_saddr == (__daddr)) && \
((*((__portpair *)&(inet_sk(__sk)->dport))) == (__ports)) && \
(!((__sk)->sk_bound_dev_if) || ((__sk)->sk_bound_dev_if == (__dif))))
#define INET_TW_MATCH(__sk, __hash,__cookie, __saddr, __daddr, __ports, __dif) \
(((__sk)->sk_hash == (__hash)) && \
#define INET_TW_MATCH(__sk, __net, __hash,__cookie, __saddr, __daddr, __ports, __dif) \
(((__sk)->sk_hash == (__hash)) && ((__sk)->sk_net == (__net)) && \
(inet_twsk(__sk)->tw_daddr == (__saddr)) && \
(inet_twsk(__sk)->tw_rcv_saddr == (__daddr)) && \
((*((__portpair *)&(inet_twsk(__sk)->tw_dport))) == (__ports)) && \
@@ -376,32 +378,36 @@ typedef __u64 __bitwise __addrpair;
*
* Local BH must be disabled here.
*/
extern struct sock * __inet_lookup_established(struct inet_hashinfo *hashinfo,
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);
static inline struct sock *
inet_lookup_established(struct inet_hashinfo *hashinfo,
inet_lookup_established(struct net *net, struct inet_hashinfo *hashinfo,
const __be32 saddr, const __be16 sport,
const __be32 daddr, const __be16 dport,
const int dif)
{
return __inet_lookup_established(hashinfo, saddr, sport, daddr,
return __inet_lookup_established(net, hashinfo, saddr, sport, daddr,
ntohs(dport), dif);
}
static inline struct sock *__inet_lookup(struct inet_hashinfo *hashinfo,
static inline struct sock *__inet_lookup(struct net *net,
struct inet_hashinfo *hashinfo,
const __be32 saddr, const __be16 sport,
const __be32 daddr, const __be16 dport,
const int dif)
{
u16 hnum = ntohs(dport);
struct sock *sk = __inet_lookup_established(hashinfo, saddr, sport, daddr,
hnum, dif);
return sk ? : __inet_lookup_listener(hashinfo, daddr, hnum, dif);
struct sock *sk = __inet_lookup_established(net, hashinfo,
saddr, sport, daddr, hnum, dif);
return sk ? : __inet_lookup_listener(net, hashinfo, daddr, hnum, dif);
}
static inline struct sock *inet_lookup(struct inet_hashinfo *hashinfo,
static inline struct sock *inet_lookup(struct net *net,
struct inet_hashinfo *hashinfo,
const __be32 saddr, const __be16 sport,
const __be32 daddr, const __be16 dport,
const int dif)
@@ -409,7 +415,7 @@ static inline struct sock *inet_lookup(struct inet_hashinfo *hashinfo,
struct sock *sk;
local_bh_disable();
sk = __inet_lookup(hashinfo, saddr, sport, daddr, dport, dif);
sk = __inet_lookup(net, hashinfo, saddr, sport, daddr, dport, dif);
local_bh_enable();
return sk;