Release 4.12 include/linux/ipv6.h
#ifndef _IPV6_H
#define _IPV6_H
#include <uapi/linux/ipv6.h>
#define ipv6_optlen(p) (((p)->hdrlen+1) << 3)
#define ipv6_authlen(p) (((p)->hdrlen+2) << 2)
/*
* This structure contains configuration options per IPv6 link.
*/
struct ipv6_devconf {
__s32 forwarding;
__s32 hop_limit;
__s32 mtu6;
__s32 accept_ra;
__s32 accept_redirects;
__s32 autoconf;
__s32 dad_transmits;
__s32 rtr_solicits;
__s32 rtr_solicit_interval;
__s32 rtr_solicit_max_interval;
__s32 rtr_solicit_delay;
__s32 force_mld_version;
__s32 mldv1_unsolicited_report_interval;
__s32 mldv2_unsolicited_report_interval;
__s32 use_tempaddr;
__s32 temp_valid_lft;
__s32 temp_prefered_lft;
__s32 regen_max_retry;
__s32 max_desync_factor;
__s32 max_addresses;
__s32 accept_ra_defrtr;
__s32 accept_ra_min_hop_limit;
__s32 accept_ra_pinfo;
__s32 ignore_routes_with_linkdown;
#ifdef CONFIG_IPV6_ROUTER_PREF
__s32 accept_ra_rtr_pref;
__s32 rtr_probe_interval;
#ifdef CONFIG_IPV6_ROUTE_INFO
__s32 accept_ra_rt_info_min_plen;
__s32 accept_ra_rt_info_max_plen;
#endif
#endif
__s32 proxy_ndp;
__s32 accept_source_route;
__s32 accept_ra_from_local;
#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
__s32 optimistic_dad;
__s32 use_optimistic;
#endif
#ifdef CONFIG_IPV6_MROUTE
__s32 mc_forwarding;
#endif
__s32 disable_ipv6;
__s32 drop_unicast_in_l2_multicast;
__s32 accept_dad;
__s32 force_tllao;
__s32 ndisc_notify;
__s32 suppress_frag_ndisc;
__s32 accept_ra_mtu;
__s32 drop_unsolicited_na;
struct ipv6_stable_secret {
bool initialized;
struct in6_addr secret;
} stable_secret;
__s32 use_oif_addrs_only;
__s32 keep_addr_on_down;
__s32 seg6_enabled;
#ifdef CONFIG_IPV6_SEG6_HMAC
__s32 seg6_require_hmac;
#endif
__u32 enhanced_dad;
__u32 addr_gen_mode;
__s32 disable_policy;
struct ctl_table_header *sysctl_header;
};
struct ipv6_params {
__s32 disable_ipv6;
__s32 autoconf;
};
extern struct ipv6_params ipv6_defaults;
#include <linux/icmpv6.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <net/inet_sock.h>
static inline struct ipv6hdr *ipv6_hdr(const struct sk_buff *skb)
{
return (struct ipv6hdr *)skb_network_header(skb);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Arnaldo Carvalho de Melo | 26 | 100.00% | 1 | 100.00% |
| Total | 26 | 100.00% | 1 | 100.00% |
static inline struct ipv6hdr *inner_ipv6_hdr(const struct sk_buff *skb)
{
return (struct ipv6hdr *)skb_inner_network_header(skb);
}
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| Joseph Gasparakis | 26 | 100.00% | 1 | 100.00% |
| Total | 26 | 100.00% | 1 | 100.00% |
static inline struct ipv6hdr *ipipv6_hdr(const struct sk_buff *skb)
{
return (struct ipv6hdr *)skb_transport_header(skb);
}
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| Arnaldo Carvalho de Melo | 26 | 100.00% | 2 | 100.00% |
| Total | 26 | 100.00% | 2 | 100.00% |
/*
This structure contains results of exthdrs parsing
as offsets from skb->nh.
*/
struct inet6_skb_parm {
int iif;
__be16 ra;
__u16 dst0;
__u16 srcrt;
__u16 dst1;
__u16 lastopt;
__u16 nhoff;
__u16 flags;
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
__u16 dsthao;
#endif
__u16 frag_max_size;
#define IP6SKB_XFRM_TRANSFORMED 1
#define IP6SKB_FORWARDED 2
#define IP6SKB_REROUTED 4
#define IP6SKB_ROUTERALERT 8
#define IP6SKB_FRAGMENTED 16
#define IP6SKB_HOPBYHOP 32
#define IP6SKB_L3SLAVE 64
};
#if defined(CONFIG_NET_L3_MASTER_DEV)
static inline bool ipv6_l3mdev_skb(__u16 flags)
{
return flags & IP6SKB_L3SLAVE;
}
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| David Ahern | 15 | 100.00% | 2 | 100.00% |
| Total | 15 | 100.00% | 2 | 100.00% |
#else
static inline bool ipv6_l3mdev_skb(__u16 flags)
{
return false;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| David Ahern | 13 | 100.00% | 2 | 100.00% |
| Total | 13 | 100.00% | 2 | 100.00% |
#endif
#define IP6CB(skb) ((struct inet6_skb_parm*)((skb)->cb))
#define IP6CBMTU(skb) ((struct ip6_mtuinfo *)((skb)->cb))
static inline int inet6_iif(const struct sk_buff *skb)
{
bool l3_slave = ipv6_l3mdev_skb(IP6CB(skb)->flags);
return l3_slave ? skb->skb_iif : IP6CB(skb)->iif;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Arnaldo Carvalho de Melo | 21 | 52.50% | 1 | 33.33% |
| David Ahern | 19 | 47.50% | 2 | 66.67% |
| Total | 40 | 100.00% | 3 | 100.00% |
/* can not be used in TCP layer after tcp_v6_fill_cb */
static inline bool inet6_exact_dif_match(struct net *net, struct sk_buff *skb)
{
#if defined(CONFIG_NET_L3_MASTER_DEV)
if (!net->ipv4.sysctl_tcp_l3mdev_accept &&
skb && ipv6_l3mdev_skb(IP6CB(skb)->flags))
return true;
#endif
return false;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Ahern | 52 | 100.00% | 2 | 100.00% |
| Total | 52 | 100.00% | 2 | 100.00% |
struct tcp6_request_sock {
struct tcp_request_sock tcp6rsk_tcp;
};
struct ipv6_mc_socklist;
struct ipv6_ac_socklist;
struct ipv6_fl_socklist;
struct inet6_cork {
struct ipv6_txoptions *opt;
u8 hop_limit;
u8 tclass;
};
/**
* struct ipv6_pinfo - ipv6 private area
*
* In the struct sock hierarchy (tcp6_sock, upd6_sock, etc)
* this _must_ be the last member, so that inet6_sk_generic
* is able to calculate its offset from the base struct sock
* by using the struct proto->slab_obj_size member. -acme
*/
struct ipv6_pinfo {
struct in6_addr saddr;
struct in6_pktinfo sticky_pktinfo;
const struct in6_addr *daddr_cache;
#ifdef CONFIG_IPV6_SUBTREES
const struct in6_addr *saddr_cache;
#endif
__be32 flow_label;
__u32 frag_size;
/*
* Packed in 16bits.
* Omit one shift by by putting the signed field at MSB.
*/
#if defined(__BIG_ENDIAN_BITFIELD)
__s16 hop_limit:9;
__u16 __unused_1:7;
#else
__u16 __unused_1:7;
__s16 hop_limit:9;
#endif
#if defined(__BIG_ENDIAN_BITFIELD)
/* Packed in 16bits. */
__s16 mcast_hops:9;
__u16 __unused_2:6,
mc_loop:1;
#else
__u16 mc_loop:1,
__unused_2:6;
__s16 mcast_hops:9;
#endif
int ucast_oif;
int mcast_oif;
/* pktoption flags */
union {
struct {
__u16 srcrt:1,
osrcrt:1,
rxinfo:1,
rxoinfo:1,
rxhlim:1,
rxohlim:1,
hopopts:1,
ohopopts:1,
dstopts:1,
odstopts:1,
rxflow:1,
rxtclass:1,
rxpmtu:1,
rxorigdstaddr:1,
recvfragsize:1;
/* 1 bits hole */
} bits;
__u16 all;
} rxopt;
/* sockopt flags */
__u16 recverr:1,
sndflow:1,
repflow:1,
pmtudisc:3,
padding:1, /* 1 bit hole */
srcprefs:3, /* 001: prefer temporary address
* 010: prefer public address
* 100: prefer care-of address
*/
dontfrag:1,
autoflowlabel:1;
__u8 min_hopcount;
__u8 tclass;
__be32 rcv_flowinfo;
__u32 dst_cookie;
__u32 rx_dst_cookie;
struct ipv6_mc_socklist __rcu *ipv6_mc_list;
struct ipv6_ac_socklist *ipv6_ac_list;
struct ipv6_fl_socklist __rcu *ipv6_fl_list;
struct ipv6_txoptions __rcu *opt;
struct sk_buff *pktoptions;
struct sk_buff *rxpmtu;
struct inet6_cork cork;
};
/* WARNING: don't change the layout of the members in {raw,udp,tcp}6_sock! */
struct raw6_sock {
/* inet_sock has to be the first member of raw6_sock */
struct inet_sock inet;
__u32 checksum; /* perform checksum */
__u32 offset; /* checksum offset */
struct icmp6_filter filter;
__u32 ip6mr_table;
/* ipv6_pinfo has to be the last member of raw6_sock, see inet6_sk_generic */
struct ipv6_pinfo inet6;
};
struct udp6_sock {
struct udp_sock udp;
/* ipv6_pinfo has to be the last member of udp6_sock, see inet6_sk_generic */
struct ipv6_pinfo inet6;
};
struct tcp6_sock {
struct tcp_sock tcp;
/* ipv6_pinfo has to be the last member of tcp6_sock, see inet6_sk_generic */
struct ipv6_pinfo inet6;
};
extern int inet6_sk_rebuild_header(struct sock *sk);
struct tcp6_timewait_sock {
struct tcp_timewait_sock tcp6tw_tcp;
};
#if IS_ENABLED(CONFIG_IPV6)
bool ipv6_mod_enabled(void);
static inline struct ipv6_pinfo *inet6_sk(const struct sock *__sk)
{
return sk_fullsock(__sk) ? inet_sk(__sk)->pinet6 : NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ingo Molnar | 16 | 53.33% | 1 | 25.00% |
| Eric Dumazet | 7 | 23.33% | 1 | 25.00% |
| David S. Miller | 4 | 13.33% | 1 | 25.00% |
| Arnaldo Carvalho de Melo | 3 | 10.00% | 1 | 25.00% |
| Total | 30 | 100.00% | 4 | 100.00% |
static inline struct raw6_sock *raw6_sk(const struct sock *sk)
{
return (struct raw6_sock *)sk;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ingo Molnar | 17 | 73.91% | 1 | 33.33% |
| David S. Miller | 3 | 13.04% | 1 | 33.33% |
| Arnaldo Carvalho de Melo | 3 | 13.04% | 1 | 33.33% |
| Total | 23 | 100.00% | 3 | 100.00% |
static inline void inet_sk_copy_descendant(struct sock *sk_to,
const struct sock *sk_from)
{
int ancestor_size = sizeof(struct inet_sock);
if (sk_from->sk_family == PF_INET6)
ancestor_size += sizeof(struct ipv6_pinfo);
__inet_sk_copy_descendant(sk_to, sk_from, ancestor_size);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Arnaldo Carvalho de Melo | 52 | 100.00% | 1 | 100.00% |
| Total | 52 | 100.00% | 1 | 100.00% |
#define __ipv6_only_sock(sk) (sk->sk_ipv6only)
#define ipv6_only_sock(sk) (__ipv6_only_sock(sk))
#define ipv6_sk_rxinfo(sk) ((sk)->sk_family == PF_INET6 && \
inet6_sk(sk)->rxopt.bits.rxinfo)
static inline const struct in6_addr *inet6_rcv_saddr(const struct sock *sk)
{
if (sk->sk_family == AF_INET6)
return &sk->sk_v6_rcv_saddr;
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Arnaldo Carvalho de Melo | 23 | 69.70% | 2 | 66.67% |
| Eric Dumazet | 10 | 30.30% | 1 | 33.33% |
| Total | 33 | 100.00% | 3 | 100.00% |
static inline int inet_v6_ipv6only(const struct sock *sk)
{
/* ipv6only field is at same position for timewait and other sockets */
return ipv6_only_sock(sk);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Arnaldo Carvalho de Melo | 19 | 95.00% | 2 | 66.67% |
| Eric Dumazet | 1 | 5.00% | 1 | 33.33% |
| Total | 20 | 100.00% | 3 | 100.00% |
#else
#define __ipv6_only_sock(sk) 0
#define ipv6_only_sock(sk) 0
#define ipv6_sk_rxinfo(sk) 0
static inline bool ipv6_mod_enabled(void)
{
return false;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Ahern | 12 | 100.00% | 1 | 100.00% |
| Total | 12 | 100.00% | 1 | 100.00% |
static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
{
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andrew Morton | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
static inline struct inet6_request_sock *
inet6_rsk(const struct request_sock *rsk)
{
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Arnaldo Carvalho de Melo | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
static inline struct raw6_sock *raw6_sk(const struct sock *sk)
{
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andrew Morton | 16 | 88.89% | 1 | 50.00% |
| Arnaldo Carvalho de Melo | 2 | 11.11% | 1 | 50.00% |
| Total | 18 | 100.00% | 2 | 100.00% |
#define inet6_rcv_saddr(__sk) NULL
#define tcp_twsk_ipv6only(__sk) 0
#define inet_v6_ipv6only(__sk) 0
#endif /* IS_ENABLED(CONFIG_IPV6) */
#endif /* _IPV6_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Arnaldo Carvalho de Melo | 258 | 20.76% | 18 | 15.65% |
| Hideaki Yoshifuji / 吉藤英明 | 210 | 16.89% | 21 | 18.26% |
| David S. Miller | 163 | 13.11% | 4 | 3.48% |
| David Ahern | 135 | 10.86% | 5 | 4.35% |
| Krishna Kumar | 53 | 4.26% | 1 | 0.87% |
| Hannes Frederic Sowa | 44 | 3.54% | 7 | 6.09% |
| Brian Haley | 38 | 3.06% | 3 | 2.61% |
| Linus Torvalds (pre-git) | 37 | 2.98% | 3 | 2.61% |
| Andrew Morton | 34 | 2.74% | 1 | 0.87% |
| Ingo Molnar | 33 | 2.65% | 1 | 0.87% |
| Eric Dumazet | 31 | 2.49% | 8 | 6.96% |
| Joseph Gasparakis | 26 | 2.09% | 1 | 0.87% |
| Vlad Yasevich | 19 | 1.53% | 1 | 0.87% |
| Patrick McHardy | 15 | 1.21% | 4 | 3.48% |
| David Lebrun | 11 | 0.88% | 2 | 1.74% |
| Masahide Nakamura | 10 | 0.80% | 1 | 0.87% |
| Herbert Xu | 9 | 0.72% | 1 | 0.87% |
| David L Stevens | 8 | 0.64% | 2 | 1.74% |
| Neil Horman | 8 | 0.64% | 1 | 0.87% |
| Florent Fourcot | 7 | 0.56% | 2 | 1.74% |
| Paul Durrant | 7 | 0.56% | 1 | 0.87% |
| Johannes Berg | 6 | 0.48% | 2 | 1.74% |
| Erik Kline | 6 | 0.48% | 2 | 1.74% |
| Willem de Bruijn | 5 | 0.40% | 1 | 0.87% |
| Thomas Graf | 5 | 0.40% | 1 | 0.87% |
| Yang Hongyang | 4 | 0.32% | 1 | 0.87% |
| Jan Engelhardt | 4 | 0.32% | 1 | 0.87% |
| Tom Herbert | 4 | 0.32% | 1 | 0.87% |
| Kazunori Miyazawa | 4 | 0.32% | 1 | 0.87% |
| Balazs Scheidler | 4 | 0.32% | 1 | 0.87% |
| Florian Westphal | 4 | 0.32% | 1 | 0.87% |
| Stephen Hemminger | 3 | 0.24% | 1 | 0.87% |
| David Forster | 3 | 0.24% | 1 | 0.87% |
| Maciej Żenczykowski | 3 | 0.24% | 1 | 0.87% |
| Felix Jia | 3 | 0.24% | 1 | 0.87% |
| Ben Greear | 3 | 0.24% | 1 | 0.87% |
| Harout Hedeshian | 3 | 0.24% | 1 | 0.87% |
| Erich E. Hoover | 3 | 0.24% | 1 | 0.87% |
| Joel Scherpelz | 3 | 0.24% | 1 | 0.87% |
| Konstantin Khlebnikov | 3 | 0.24% | 1 | 0.87% |
| Erik Nordmark | 3 | 0.24% | 1 | 0.87% |
| Octavian Purdila | 3 | 0.24% | 1 | 0.87% |
| Andy Gospodarek | 3 | 0.24% | 1 | 0.87% |
| Hangbin Liu | 3 | 0.24% | 1 | 0.87% |
| Al Viro | 1 | 0.08% | 1 | 0.87% |
| David Howells | 1 | 0.08% | 1 | 0.87% |
| Total | 1243 | 100.00% | 115 | 100.00% |
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