cregit-Linux how code gets into the kernel

Release 4.15 include/net/inet6_hashtables.h

Directory: include/net
/*
 * 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;


static inline unsigned int __inet6_ehashfn(const u32 lhash, const u16 lport, const u32 fhash, const __be16 fport, const u32 initval) { const u32 ports = (((u32)lport) << 16) | (__force u32)fport; return jhash_3words(lhash, fhash, ports, initval); }

Contributors

PersonTokensPropCommitsCommitProp
Arnaldo Carvalho de Melo2439.34%116.67%
Hannes Frederic Sowa1321.31%116.67%
Eric Dumazet1118.03%233.33%
David S. Miller914.75%116.67%
Al Viro46.56%116.67%
Total61100.00%6100.00%

/* * 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. */ 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, const int sdif); struct sock *inet6_lookup_listener(struct net *net, struct inet_hashinfo *hashinfo, struct sk_buff *skb, int doff, const struct in6_addr *saddr, const __be16 sport, const struct in6_addr *daddr, const unsigned short hnum, const int dif, const int sdif);
static inline struct sock *__inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo, struct sk_buff *skb, int doff, const struct in6_addr *saddr, const __be16 sport, const struct in6_addr *daddr, const u16 hnum, const int dif, const int sdif, bool *refcounted) { struct sock *sk = __inet6_lookup_established(net, hashinfo, saddr, sport, daddr, hnum, dif, sdif); *refcounted = true; if (sk) return sk; *refcounted = false; return inet6_lookup_listener(net, hashinfo, skb, doff, saddr, sport, daddr, hnum, dif, sdif); }

Contributors

PersonTokensPropCommitsCommitProp
Arnaldo Carvalho de Melo7661.29%114.29%
Eric Dumazet1411.29%114.29%
Craig Gallek129.68%114.29%
Pavel Emelyanov97.26%114.29%
David Ahern86.45%114.29%
Tom Herbert43.23%114.29%
Al Viro10.81%114.29%
Total124100.00%7100.00%


static inline struct sock *__inet6_lookup_skb(struct inet_hashinfo *hashinfo, struct sk_buff *skb, int doff, const __be16 sport, const __be16 dport, int iif, int sdif, bool *refcounted) { struct sock *sk = skb_steal_sock(skb); *refcounted = true; if (sk) return sk; return __inet6_lookup(dev_net(skb_dst(skb)->dev), hashinfo, skb, doff, &ipv6_hdr(skb)->saddr, sport, &ipv6_hdr(skb)->daddr, ntohs(dport), iif, sdif, refcounted); }

Contributors

PersonTokensPropCommitsCommitProp
Arnaldo Carvalho de Melo6457.66%112.50%
Eric Dumazet2320.72%450.00%
KOVACS Krisztian1210.81%112.50%
Craig Gallek76.31%112.50%
David Ahern54.50%112.50%
Total111100.00%8100.00%

struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo, struct sk_buff *skb, int doff, const struct in6_addr *saddr, const __be16 sport, const struct in6_addr *daddr, const __be16 dport, const int dif); int inet6_hash(struct sock *sk); #endif /* IS_ENABLED(CONFIG_IPV6) */ #define INET6_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif, __sdif) \ (((__sk)->sk_portpair == (__ports)) && \ ((__sk)->sk_family == AF_INET6) && \ ipv6_addr_equal(&(__sk)->sk_v6_daddr, (__saddr)) && \ ipv6_addr_equal(&(__sk)->sk_v6_rcv_saddr, (__daddr)) && \ (!(__sk)->sk_bound_dev_if || \ ((__sk)->sk_bound_dev_if == (__dif)) || \ ((__sk)->sk_bound_dev_if == (__sdif))) && \ net_eq(sock_net(__sk), (__net))) #endif /* _INET6_HASHTABLES_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Arnaldo Carvalho de Melo28956.23%313.64%
Eric Dumazet509.73%731.82%
Craig Gallek448.56%29.09%
Pavel Emelyanov275.25%29.09%
David Ahern244.67%14.55%
Américo Wang173.31%14.55%
David S. Miller152.92%14.55%
Tom Herbert142.72%14.55%
Hannes Frederic Sowa132.53%14.55%
KOVACS Krisztian122.33%14.55%
Al Viro81.56%14.55%
Denys Vlasenko10.19%14.55%
Total514100.00%22100.00%
Directory: include/net
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