diff options
Diffstat (limited to 'ANDROID_3.4.5/include/net/inet6_hashtables.h')
-rw-r--r-- | ANDROID_3.4.5/include/net/inet6_hashtables.h | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/ANDROID_3.4.5/include/net/inet6_hashtables.h b/ANDROID_3.4.5/include/net/inet6_hashtables.h deleted file mode 100644 index 00cbb438..00000000 --- a/ANDROID_3.4.5/include/net/inet6_hashtables.h +++ /dev/null @@ -1,114 +0,0 @@ -/* - * INET An implementation of the TCP/IP protocol suite for the LINUX - * operating system. INET is implemented using the BSD Socket - * interface as the means of communication with the user level. - * - * Authors: Lotsa people, from code originally in tcp - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef _INET6_HASHTABLES_H -#define _INET6_HASHTABLES_H - - -#if IS_ENABLED(CONFIG_IPV6) -#include <linux/in6.h> -#include <linux/ipv6.h> -#include <linux/types.h> -#include <linux/jhash.h> - -#include <net/inet_sock.h> - -#include <net/ipv6.h> -#include <net/netns/hash.h> - -struct inet_hashinfo; - -/* I have no idea if this is a good hash for v6 or not. -DaveM */ -static inline unsigned int inet6_ehashfn(struct net *net, - const struct in6_addr *laddr, const u16 lport, - const struct in6_addr *faddr, const __be16 fport) -{ - u32 ports = (lport ^ (__force u16)fport); - - return jhash_3words((__force u32)laddr->s6_addr32[3], - (__force u32)faddr->s6_addr32[3], - ports, inet_ehash_secret + net_hash_mix(net)); -} - -static inline int inet6_sk_ehashfn(const struct sock *sk) -{ - const struct inet_sock *inet = inet_sk(sk); - const struct ipv6_pinfo *np = inet6_sk(sk); - const struct in6_addr *laddr = &np->rcv_saddr; - const struct in6_addr *faddr = &np->daddr; - const __u16 lport = inet->inet_num; - const __be16 fport = inet->inet_dport; - struct net *net = sock_net(sk); - - return inet6_ehashfn(net, laddr, lport, faddr, fport); -} - -extern int __inet6_hash(struct sock *sk, struct inet_timewait_sock *twp); - -/* - * Sockets in TCP_CLOSE state are _always_ taken out of the hash, so - * we need not check it for TCP lookups anymore, thanks Alexey. -DaveM - * - * The sockhash lock must be held as a reader here. - */ -extern struct sock *__inet6_lookup_established(struct net *net, - struct inet_hashinfo *hashinfo, - const struct in6_addr *saddr, - const __be16 sport, - const struct in6_addr *daddr, - const u16 hnum, - const int dif); - -extern struct sock *inet6_lookup_listener(struct net *net, - struct inet_hashinfo *hashinfo, - const struct in6_addr *daddr, - const unsigned short hnum, - const int dif); - -static inline struct sock *__inet6_lookup(struct net *net, - struct inet_hashinfo *hashinfo, - const struct in6_addr *saddr, - const __be16 sport, - const struct in6_addr *daddr, - const u16 hnum, - const int dif) -{ - struct sock *sk = __inet6_lookup_established(net, hashinfo, saddr, - sport, daddr, hnum, dif); - if (sk) - return sk; - - return inet6_lookup_listener(net, hashinfo, daddr, hnum, dif); -} - -static inline struct sock *__inet6_lookup_skb(struct inet_hashinfo *hashinfo, - struct sk_buff *skb, - const __be16 sport, - const __be16 dport) -{ - struct sock *sk; - - if (unlikely(sk = skb_steal_sock(skb))) - return sk; - else return __inet6_lookup(dev_net(skb_dst(skb)->dev), hashinfo, - &ipv6_hdr(skb)->saddr, sport, - &ipv6_hdr(skb)->daddr, ntohs(dport), - inet6_iif(skb)); -} - -extern struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo, - const struct in6_addr *saddr, const __be16 sport, - const struct in6_addr *daddr, const __be16 dport, - const int dif); -#endif /* IS_ENABLED(CONFIG_IPV6) */ -#endif /* _INET6_HASHTABLES_H */ |