Release 4.12 include/net/addrconf.h
#ifndef _ADDRCONF_H
#define _ADDRCONF_H
#define MAX_RTR_SOLICITATIONS -1
/* unlimited */
#define RTR_SOLICITATION_INTERVAL (4*HZ)
#define RTR_SOLICITATION_MAX_INTERVAL (3600*HZ)
/* 1 hour */
#define MIN_VALID_LIFETIME (2*3600)
/* 2 hours */
#define TEMP_VALID_LIFETIME (7*86400)
#define TEMP_PREFERRED_LIFETIME (86400)
#define REGEN_MAX_RETRY (3)
#define MAX_DESYNC_FACTOR (600)
#define ADDR_CHECK_FREQUENCY (120*HZ)
#define IPV6_MAX_ADDRESSES 16
#define ADDRCONF_TIMER_FUZZ_MINUS (HZ > 50 ? HZ / 50 : 1)
#define ADDRCONF_TIMER_FUZZ (HZ / 4)
#define ADDRCONF_TIMER_FUZZ_MAX (HZ)
#define ADDRCONF_NOTIFY_PRIORITY 0
#include <linux/in.h>
#include <linux/in6.h>
struct prefix_info {
__u8 type;
__u8 length;
__u8 prefix_len;
#if defined(__BIG_ENDIAN_BITFIELD)
__u8 onlink : 1,
autoconf : 1,
reserved : 6;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
__u8 reserved : 6,
autoconf : 1,
onlink : 1;
#else
#error "Please fix <asm/byteorder.h>"
#endif
__be32 valid;
__be32 prefered;
__be32 reserved2;
struct in6_addr prefix;
};
#include <linux/netdevice.h>
#include <net/if_inet6.h>
#include <net/ipv6.h>
#define IN6_ADDR_HSIZE_SHIFT 4
#define IN6_ADDR_HSIZE (1 << IN6_ADDR_HSIZE_SHIFT)
int addrconf_init(void);
void addrconf_cleanup(void);
int addrconf_add_ifaddr(struct net *net, void __user *arg);
int addrconf_del_ifaddr(struct net *net, void __user *arg);
int addrconf_set_dstaddr(struct net *net, void __user *arg);
int ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
const struct net_device *dev, int strict);
int ipv6_chk_addr_and_flags(struct net *net, const struct in6_addr *addr,
const struct net_device *dev, int strict,
u32 banned_flags);
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
int ipv6_chk_home_addr(struct net *net, const struct in6_addr *addr);
#endif
bool ipv6_chk_custom_prefix(const struct in6_addr *addr,
const unsigned int prefix_len,
struct net_device *dev);
int ipv6_chk_prefix(const struct in6_addr *addr, struct net_device *dev);
struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net,
const struct in6_addr *addr,
struct net_device *dev, int strict);
int ipv6_dev_get_saddr(struct net *net, const struct net_device *dev,
const struct in6_addr *daddr, unsigned int srcprefs,
struct in6_addr *saddr);
int __ipv6_get_lladdr(struct inet6_dev *idev, struct in6_addr *addr,
u32 banned_flags);
int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
u32 banned_flags);
int inet_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2,
bool match_wildcard);
void addrconf_join_solict(struct net_device *dev, const struct in6_addr *addr);
void addrconf_leave_solict(struct inet6_dev *idev, const struct in6_addr *addr);
void addrconf_add_linklocal(struct inet6_dev *idev,
const struct in6_addr *addr, u32 flags);
int addrconf_prefix_rcv_add_addr(struct net *net, struct net_device *dev,
const struct prefix_info *pinfo,
struct inet6_dev *in6_dev,
const struct in6_addr *addr, int addr_type,
u32 addr_flags, bool sllao, bool tokenized,
__u32 valid_lft, u32 prefered_lft);
static inline void addrconf_addr_eui48_base(u8 *eui, const char *const addr)
{
memcpy(eui, addr, 3);
eui[3] = 0xFF;
eui[4] = 0xFE;
memcpy(eui + 5, addr + 3, 3);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Yuval Shaia | 53 | 100.00% | 1 | 100.00% |
| Total | 53 | 100.00% | 1 | 100.00% |
static inline void addrconf_addr_eui48(u8 *eui, const char *const addr)
{
addrconf_addr_eui48_base(eui, addr);
eui[0] ^= 2;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Yuval Shaia | 31 | 100.00% | 1 | 100.00% |
| Total | 31 | 100.00% | 1 | 100.00% |
static inline int addrconf_ifid_eui48(u8 *eui, struct net_device *dev)
{
if (dev->addr_len != ETH_ALEN)
return -1;
/*
* The zSeries OSA network cards can be shared among various
* OS instances, but the OSA cards have only one MAC address.
* This leads to duplicate address conflicts in conjunction
* with IPv6 if more than one instance uses the same card.
*
* The driver for these cards can deliver a unique 16-bit
* identifier for each instance sharing the same card. It is
* placed instead of 0xFFFE in the interface identifier. The
* "u" bit of the interface identifier is not inverted in this
* case. Hence the resulting interface identifier has local
* scope according to RFC2373.
*/
addrconf_addr_eui48_base(eui, dev->dev_addr);
if (dev->dev_id) {
eui[3] = (dev->dev_id >> 8) & 0xFF;
eui[4] = dev->dev_id & 0xFF;
} else {
eui[0] ^= 2;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Matan Barak | 83 | 97.65% | 1 | 50.00% |
| Yuval Shaia | 2 | 2.35% | 1 | 50.00% |
| Total | 85 | 100.00% | 2 | 100.00% |
static inline unsigned long addrconf_timeout_fixup(u32 timeout,
unsigned int unit)
{
if (timeout == 0xffffffff)
return ~0UL;
/*
* Avoid arithmetic overflow.
* Assuming unit is constant and non-zero, this "if" statement
* will go away on 64bit archs.
*/
if (0xfffffffe > LONG_MAX / unit && timeout > LONG_MAX / unit)
return LONG_MAX / unit;
return timeout;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hideaki Yoshifuji / 吉藤英明 | 47 | 97.92% | 1 | 50.00% |
| Eric Dumazet | 1 | 2.08% | 1 | 50.00% |
| Total | 48 | 100.00% | 2 | 100.00% |
static inline int addrconf_finite_timeout(unsigned long timeout)
{
return ~timeout;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hideaki Yoshifuji / 吉藤英明 | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
/*
* IPv6 Address Label subsystem (addrlabel.c)
*/
int ipv6_addr_label_init(void);
void ipv6_addr_label_cleanup(void);
void ipv6_addr_label_rtnl_register(void);
u32 ipv6_addr_label(struct net *net, const struct in6_addr *addr,
int type, int ifindex);
/*
* multicast prototypes (mcast.c)
*/
int ipv6_sock_mc_join(struct sock *sk, int ifindex,
const struct in6_addr *addr);
int ipv6_sock_mc_drop(struct sock *sk, int ifindex,
const struct in6_addr *addr);
void __ipv6_sock_mc_close(struct sock *sk);
void ipv6_sock_mc_close(struct sock *sk);
bool inet6_mc_check(struct sock *sk, const struct in6_addr *mc_addr,
const struct in6_addr *src_addr);
int ipv6_dev_mc_inc(struct net_device *dev, const struct in6_addr *addr);
int __ipv6_dev_mc_dec(struct inet6_dev *idev, const struct in6_addr *addr);
int ipv6_dev_mc_dec(struct net_device *dev, const struct in6_addr *addr);
void ipv6_mc_up(struct inet6_dev *idev);
void ipv6_mc_down(struct inet6_dev *idev);
void ipv6_mc_unmap(struct inet6_dev *idev);
void ipv6_mc_remap(struct inet6_dev *idev);
void ipv6_mc_init_dev(struct inet6_dev *idev);
void ipv6_mc_destroy_dev(struct inet6_dev *idev);
int ipv6_mc_check_mld(struct sk_buff *skb, struct sk_buff **skb_trimmed);
void addrconf_dad_failure(struct inet6_ifaddr *ifp);
bool ipv6_chk_mcast_addr(struct net_device *dev, const struct in6_addr *group,
const struct in6_addr *src_addr);
void ipv6_mc_dad_complete(struct inet6_dev *idev);
/* A stub used by vxlan module. This is ugly, ideally these
* symbols should be built into the core kernel.
*/
struct ipv6_stub {
int (*ipv6_sock_mc_join)(struct sock *sk, int ifindex,
const struct in6_addr *addr);
int (*ipv6_sock_mc_drop)(struct sock *sk, int ifindex,
const struct in6_addr *addr);
int (*ipv6_dst_lookup)(struct net *net, struct sock *sk,
struct dst_entry **dst, struct flowi6 *fl6);
void (*udpv6_encap_enable)(void);
void (*ndisc_send_na)(struct net_device *dev, const struct in6_addr *daddr,
const struct in6_addr *solicited_addr,
bool router, bool solicited, bool override, bool inc_opt);
struct neigh_table *nd_tbl;
};
extern const struct ipv6_stub *ipv6_stub __read_mostly;
/*
* identify MLD packets for MLD filter exceptions
*/
static inline bool ipv6_is_mld(struct sk_buff *skb, int nexthdr, int offset)
{
struct icmp6hdr *hdr;
if (nexthdr != IPPROTO_ICMPV6 ||
!pskb_network_may_pull(skb, offset + sizeof(struct icmp6hdr)))
return false;
hdr = (struct icmp6hdr *)(skb_network_header(skb) + offset);
switch (hdr->icmp6_type) {
case ICMPV6_MGM_QUERY:
case ICMPV6_MGM_REPORT:
case ICMPV6_MGM_REDUCTION:
case ICMPV6_MLD2_REPORT:
return true;
default:
break;
}
return false;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hideaki Yoshifuji / 吉藤英明 | 79 | 87.78% | 1 | 33.33% |
| David L Stevens | 10 | 11.11% | 1 | 33.33% |
| Eric Dumazet | 1 | 1.11% | 1 | 33.33% |
| Total | 90 | 100.00% | 3 | 100.00% |
void addrconf_prefix_rcv(struct net_device *dev,
u8 *opt, int len, bool sllao);
/*
* anycast prototypes (anycast.c)
*/
int ipv6_sock_ac_join(struct sock *sk, int ifindex,
const struct in6_addr *addr);
int ipv6_sock_ac_drop(struct sock *sk, int ifindex,
const struct in6_addr *addr);
void ipv6_sock_ac_close(struct sock *sk);
int __ipv6_dev_ac_inc(struct inet6_dev *idev, const struct in6_addr *addr);
int __ipv6_dev_ac_dec(struct inet6_dev *idev, const struct in6_addr *addr);
void ipv6_ac_destroy_dev(struct inet6_dev *idev);
bool ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
const struct in6_addr *addr);
bool ipv6_chk_acast_addr_src(struct net *net, struct net_device *dev,
const struct in6_addr *addr);
/* Device notifier */
int register_inet6addr_notifier(struct notifier_block *nb);
int unregister_inet6addr_notifier(struct notifier_block *nb);
int inet6addr_notifier_call_chain(unsigned long val, void *v);
void inet6_netconf_notify_devconf(struct net *net, int event, int type,
int ifindex, struct ipv6_devconf *devconf);
/**
* __in6_dev_get - get inet6_dev pointer from netdevice
* @dev: network device
*
* Caller must hold rcu_read_lock or RTNL, because this function
* does not take a reference on the inet6_dev.
*/
static inline struct inet6_dev *__in6_dev_get(const struct net_device *dev)
{
return rcu_dereference_rtnl(dev->ip6_ptr);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 19 | 82.61% | 2 | 50.00% |
| Eric Dumazet | 2 | 8.70% | 1 | 25.00% |
| Hideaki Yoshifuji / 吉藤英明 | 2 | 8.70% | 1 | 25.00% |
| Total | 23 | 100.00% | 4 | 100.00% |
/**
* in6_dev_get - get inet6_dev pointer from netdevice
* @dev: network device
*
* This version can be used in any context, and takes a reference
* on the inet6_dev. Callers must use in6_dev_put() later to
* release this reference.
*/
static inline struct inet6_dev *in6_dev_get(const struct net_device *dev)
{
struct inet6_dev *idev;
rcu_read_lock();
idev = rcu_dereference(dev->ip6_ptr);
if (idev)
atomic_inc(&idev->refcnt);
rcu_read_unlock();
return idev;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 40 | 80.00% | 2 | 50.00% |
| Hideaki Yoshifuji / 吉藤英明 | 6 | 12.00% | 1 | 25.00% |
| Eric Dumazet | 4 | 8.00% | 1 | 25.00% |
| Total | 50 | 100.00% | 4 | 100.00% |
static inline struct neigh_parms *__in6_dev_nd_parms_get_rcu(const struct net_device *dev)
{
struct inet6_dev *idev = __in6_dev_get(dev);
return idev ? idev->nd_parms : NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Pirko | 34 | 100.00% | 1 | 100.00% |
| Total | 34 | 100.00% | 1 | 100.00% |
void in6_dev_finish_destroy(struct inet6_dev *idev);
static inline void in6_dev_put(struct inet6_dev *idev)
{
if (atomic_dec_and_test(&idev->refcnt))
in6_dev_finish_destroy(idev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 27 | 100.00% | 3 | 100.00% |
| Total | 27 | 100.00% | 3 | 100.00% |
static inline void __in6_dev_put(struct inet6_dev *idev)
{
atomic_dec(&idev->refcnt);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Dumazet | 16 | 80.00% | 1 | 50.00% |
| Linus Torvalds (pre-git) | 4 | 20.00% | 1 | 50.00% |
| Total | 20 | 100.00% | 2 | 100.00% |
static inline void in6_dev_hold(struct inet6_dev *idev)
{
atomic_inc(&idev->refcnt);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Dumazet | 16 | 80.00% | 1 | 50.00% |
| Linus Torvalds (pre-git) | 4 | 20.00% | 1 | 50.00% |
| Total | 20 | 100.00% | 2 | 100.00% |
void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp);
static inline void in6_ifa_put(struct inet6_ifaddr *ifp)
{
if (atomic_dec_and_test(&ifp->refcnt))
inet6_ifa_finish_destroy(ifp);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 27 | 100.00% | 2 | 100.00% |
| Total | 27 | 100.00% | 2 | 100.00% |
static inline void __in6_ifa_put(struct inet6_ifaddr *ifp)
{
atomic_dec(&ifp->refcnt);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Dumazet | 16 | 80.00% | 1 | 33.33% |
| Linus Torvalds (pre-git) | 3 | 15.00% | 1 | 33.33% |
| Hideaki Yoshifuji / 吉藤英明 | 1 | 5.00% | 1 | 33.33% |
| Total | 20 | 100.00% | 3 | 100.00% |
static inline void in6_ifa_hold(struct inet6_ifaddr *ifp)
{
atomic_inc(&ifp->refcnt);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Eric Dumazet | 16 | 80.00% | 1 | 33.33% |
| Linus Torvalds (pre-git) | 3 | 15.00% | 1 | 33.33% |
| Hideaki Yoshifuji / 吉藤英明 | 1 | 5.00% | 1 | 33.33% |
| Total | 20 | 100.00% | 3 | 100.00% |
/*
* compute link-local solicited-node multicast address
*/
static inline void addrconf_addr_solict_mult(const struct in6_addr *addr,
struct in6_addr *solicited)
{
ipv6_addr_set(solicited,
htonl(0xFF020000), 0,
htonl(0x1),
htonl(0xFF000000) | addr->s6_addr32[3]);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 42 | 89.36% | 3 | 50.00% |
| Hideaki Yoshifuji / 吉藤英明 | 4 | 8.51% | 2 | 33.33% |
| Linus Torvalds | 1 | 2.13% | 1 | 16.67% |
| Total | 47 | 100.00% | 6 | 100.00% |
static inline bool ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr)
{
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
__be64 *p = (__be64 *)addr;
return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) | (p[1] ^ cpu_to_be64(1))) == 0UL;
#else
return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
addr->s6_addr32[1] | addr->s6_addr32[2] |
(addr->s6_addr32[3] ^ htonl(0x00000001))) == 0;
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hideaki Yoshifuji / 吉藤英明 | 111 | 98.23% | 4 | 80.00% |
| Björn Mork | 2 | 1.77% | 1 | 20.00% |
| Total | 113 | 100.00% | 5 | 100.00% |
static inline bool ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)
{
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
__be64 *p = (__be64 *)addr;
return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) | (p[1] ^ cpu_to_be64(2))) == 0UL;
#else
return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
addr->s6_addr32[1] | addr->s6_addr32[2] |
(addr->s6_addr32[3] ^ htonl(0x00000002))) == 0;
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hideaki Yoshifuji / 吉藤英明 | 111 | 98.23% | 4 | 80.00% |
| Björn Mork | 2 | 1.77% | 1 | 20.00% |
| Total | 113 | 100.00% | 5 | 100.00% |
static inline bool ipv6_addr_is_isatap(const struct in6_addr *addr)
{
return (addr->s6_addr32[2] | htonl(0x02000000)) == htonl(0x02005EFE);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Fred L. Templin | 32 | 96.97% | 1 | 50.00% |
| Hideaki Yoshifuji / 吉藤英明 | 1 | 3.03% | 1 | 50.00% |
| Total | 33 | 100.00% | 2 | 100.00% |
static inline bool ipv6_addr_is_solict_mult(const struct in6_addr *addr)
{
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
__be64 *p = (__be64 *)addr;
return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) |
((p[1] ^ cpu_to_be64(0x00000001ff000000UL)) &
cpu_to_be64(0xffffffffff000000UL))) == 0UL;
#else
return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
addr->s6_addr32[1] |
(addr->s6_addr32[2] ^ htonl(0x00000001)) |
(addr->s6_addr[12] ^ 0xff)) == 0;
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hideaki Yoshifuji / 吉藤英明 | 122 | 98.39% | 2 | 66.67% |
| Björn Mork | 2 | 1.61% | 1 | 33.33% |
| Total | 124 | 100.00% | 3 | 100.00% |
#ifdef CONFIG_PROC_FS
int if6_proc_init(void);
void if6_proc_exit(void);
#endif
#endif
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Hideaki Yoshifuji / 吉藤英明 | 624 | 28.78% | 22 | 22.92% |
| Linus Torvalds (pre-git) | 511 | 23.57% | 10 | 10.42% |
| Américo Wang | 173 | 7.98% | 8 | 8.33% |
| David L Stevens | 141 | 6.50% | 3 | 3.12% |
| Eric Dumazet | 92 | 4.24% | 5 | 5.21% |
| Yuval Shaia | 86 | 3.97% | 1 | 1.04% |
| Matan Barak | 83 | 3.83% | 1 | 1.04% |
| Alexander Aring | 67 | 3.09% | 2 | 2.08% |
| Jiri Pirko | 48 | 2.21% | 3 | 3.12% |
| Daniel Lezcano | 35 | 1.61% | 5 | 5.21% |
| Fred L. Templin | 35 | 1.61% | 1 | 1.04% |
| Linus Torvalds | 29 | 1.34% | 3 | 3.12% |
| Erik Kline | 27 | 1.25% | 1 | 1.04% |
| Masahide Nakamura | 21 | 0.97% | 2 | 2.08% |
| François-Xavier Le Bail | 20 | 0.92% | 1 | 1.04% |
| Nicolas Dichtel | 20 | 0.92% | 1 | 1.04% |
| Catalin(ux aka Dino) M. Boie | 20 | 0.92% | 1 | 1.04% |
| Moni Shoua | 18 | 0.83% | 1 | 1.04% |
| Arnaldo Carvalho de Melo | 17 | 0.78% | 1 | 1.04% |
| Linus Lüssing | 15 | 0.69% | 1 | 1.04% |
| Neil Horman | 10 | 0.46% | 3 | 3.12% |
| Hannes Frederic Sowa | 9 | 0.42% | 1 | 1.04% |
| Sabrina Dubroca | 9 | 0.42% | 1 | 1.04% |
| Maciej Żenczykowski | 7 | 0.32% | 1 | 1.04% |
| Björn Mork | 6 | 0.28% | 1 | 1.04% |
| Ville Nuorvala | 6 | 0.28% | 1 | 1.04% |
| Al Viro | 6 | 0.28% | 2 | 2.08% |
| Benjamin Thery | 5 | 0.23% | 1 | 1.04% |
| Roopa Prabhu | 5 | 0.23% | 1 | 1.04% |
| Brian Haley | 5 | 0.23% | 1 | 1.04% |
| Herbert Xu | 4 | 0.18% | 2 | 2.08% |
| Patrick McHardy | 4 | 0.18% | 2 | 2.08% |
| David Ahern | 3 | 0.14% | 1 | 1.04% |
| Craig Gallek | 3 | 0.14% | 1 | 1.04% |
| Noriaki Takamiya | 1 | 0.05% | 1 | 1.04% |
| Florian Westphal | 1 | 0.05% | 1 | 1.04% |
| Lorenzo Colitti | 1 | 0.05% | 1 | 1.04% |
| Josef Bacik | 1 | 0.05% | 1 | 1.04% |
| Total | 2168 | 100.00% | 96 | 100.00% |
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