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net/ipv6/addrconf.c
111 KB
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/* * IPv6 Address [auto]configuration * Linux INET6 implementation * * Authors: |
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* Pedro Roque <roque@di.fc.ul.pt> |
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* Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> * |
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* 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. */ /* * Changes: * * Janos Farkas : delete timer on ifdown * <chexum@bankinf.banki.hu> * Andi Kleen : kill double kfree on module * unload. * Maciej W. Rozycki : FDDI support * sekiya@USAGI : Don't send too many RS * packets. * yoshfuji@USAGI : Fixed interval between DAD * packets. * YOSHIFUJI Hideaki @USAGI : improved accuracy of * address validation timer. * YOSHIFUJI Hideaki @USAGI : Privacy Extensions (RFC3041) * support. * Yuji SEKIYA @USAGI : Don't assign a same IPv6 * address on a same interface. * YOSHIFUJI Hideaki @USAGI : ARCnet support * YOSHIFUJI Hideaki @USAGI : convert /proc/net/if_inet6 to * seq_file. |
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* YOSHIFUJI Hideaki @USAGI : improved source address * selection; consider scope, * status etc. |
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*/ |
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#include <linux/errno.h> #include <linux/types.h> |
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#include <linux/kernel.h> |
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#include <linux/socket.h> #include <linux/sockios.h> |
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#include <linux/net.h> #include <linux/in6.h> #include <linux/netdevice.h> |
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#include <linux/if_addr.h> |
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#include <linux/if_arp.h> #include <linux/if_arcnet.h> #include <linux/if_infiniband.h> #include <linux/route.h> #include <linux/inetdevice.h> #include <linux/init.h> #ifdef CONFIG_SYSCTL #include <linux/sysctl.h> #endif |
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#include <linux/capability.h> |
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#include <linux/delay.h> #include <linux/notifier.h> |
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#include <linux/string.h> |
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|
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#include <net/net_namespace.h> |
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#include <net/sock.h> #include <net/snmp.h> #include <net/ipv6.h> #include <net/protocol.h> #include <net/ndisc.h> #include <net/ip6_route.h> #include <net/addrconf.h> #include <net/tcp.h> #include <net/ip.h> |
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#include <net/netlink.h> |
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#include <net/pkt_sched.h> |
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#include <linux/if_tunnel.h> #include <linux/rtnetlink.h> #ifdef CONFIG_IPV6_PRIVACY #include <linux/random.h> |
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#endif #include <asm/uaccess.h> |
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#include <asm/unaligned.h> |
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#include <linux/proc_fs.h> #include <linux/seq_file.h> /* Set to 3 to get tracing... */ #define ACONF_DEBUG 2 #if ACONF_DEBUG >= 3 #define ADBG(x) printk x #else #define ADBG(x) #endif #define INFINITY_LIFE_TIME 0xFFFFFFFF #define TIME_DELTA(a,b) ((unsigned long)((long)(a) - (long)(b))) #ifdef CONFIG_SYSCTL |
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static void addrconf_sysctl_register(struct inet6_dev *idev); |
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static void addrconf_sysctl_unregister(struct inet6_dev *idev); #else static inline void addrconf_sysctl_register(struct inet6_dev *idev) { } static inline void addrconf_sysctl_unregister(struct inet6_dev *idev) { } |
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#endif #ifdef CONFIG_IPV6_PRIVACY static int __ipv6_regen_rndid(struct inet6_dev *idev); |
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static int __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpaddr); |
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static void ipv6_regen_rndid(unsigned long data); static int desync_factor = MAX_DESYNC_FACTOR * HZ; |
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#endif |
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static int ipv6_generate_eui64(u8 *eui, struct net_device *dev); |
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static int ipv6_count_addresses(struct inet6_dev *idev); /* * Configured unicast address hash table */ static struct inet6_ifaddr *inet6_addr_lst[IN6_ADDR_HSIZE]; static DEFINE_RWLOCK(addrconf_hash_lock); |
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static void addrconf_verify(unsigned long); |
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static DEFINE_TIMER(addr_chk_timer, addrconf_verify, 0, 0); |
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static DEFINE_SPINLOCK(addrconf_verify_lock); static void addrconf_join_anycast(struct inet6_ifaddr *ifp); static void addrconf_leave_anycast(struct inet6_ifaddr *ifp); static int addrconf_ifdown(struct net_device *dev, int how); |
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static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags); |
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static void addrconf_dad_timer(unsigned long data); static void addrconf_dad_completed(struct inet6_ifaddr *ifp); |
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static void addrconf_dad_run(struct inet6_dev *idev); |
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static void addrconf_rs_timer(unsigned long data); static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifa); static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifa); |
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static void inet6_prefix_notify(int event, struct inet6_dev *idev, |
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struct prefix_info *pinfo); |
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static int ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr, struct net_device *dev); |
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|
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static ATOMIC_NOTIFIER_HEAD(inet6addr_chain); |
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|
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static struct ipv6_devconf ipv6_devconf __read_mostly = { |
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.forwarding = 0, .hop_limit = IPV6_DEFAULT_HOPLIMIT, .mtu6 = IPV6_MIN_MTU, .accept_ra = 1, .accept_redirects = 1, .autoconf = 1, .force_mld_version = 0, .dad_transmits = 1, .rtr_solicits = MAX_RTR_SOLICITATIONS, .rtr_solicit_interval = RTR_SOLICITATION_INTERVAL, .rtr_solicit_delay = MAX_RTR_SOLICITATION_DELAY, #ifdef CONFIG_IPV6_PRIVACY .use_tempaddr = 0, .temp_valid_lft = TEMP_VALID_LIFETIME, .temp_prefered_lft = TEMP_PREFERRED_LIFETIME, .regen_max_retry = REGEN_MAX_RETRY, .max_desync_factor = MAX_DESYNC_FACTOR, #endif .max_addresses = IPV6_MAX_ADDRESSES, |
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.accept_ra_defrtr = 1, |
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.accept_ra_pinfo = 1, |
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#ifdef CONFIG_IPV6_ROUTER_PREF .accept_ra_rtr_pref = 1, |
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.rtr_probe_interval = 60 * HZ, |
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#ifdef CONFIG_IPV6_ROUTE_INFO .accept_ra_rt_info_max_plen = 0, #endif |
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#endif |
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.proxy_ndp = 0, |
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.accept_source_route = 0, /* we do not accept RH0 by default. */ |
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.disable_ipv6 = 0, |
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.accept_dad = 1, |
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}; |
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static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = { |
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.forwarding = 0, .hop_limit = IPV6_DEFAULT_HOPLIMIT, .mtu6 = IPV6_MIN_MTU, .accept_ra = 1, .accept_redirects = 1, .autoconf = 1, .dad_transmits = 1, .rtr_solicits = MAX_RTR_SOLICITATIONS, .rtr_solicit_interval = RTR_SOLICITATION_INTERVAL, .rtr_solicit_delay = MAX_RTR_SOLICITATION_DELAY, #ifdef CONFIG_IPV6_PRIVACY .use_tempaddr = 0, .temp_valid_lft = TEMP_VALID_LIFETIME, .temp_prefered_lft = TEMP_PREFERRED_LIFETIME, .regen_max_retry = REGEN_MAX_RETRY, .max_desync_factor = MAX_DESYNC_FACTOR, #endif .max_addresses = IPV6_MAX_ADDRESSES, |
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.accept_ra_defrtr = 1, |
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.accept_ra_pinfo = 1, |
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#ifdef CONFIG_IPV6_ROUTER_PREF .accept_ra_rtr_pref = 1, |
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.rtr_probe_interval = 60 * HZ, |
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#ifdef CONFIG_IPV6_ROUTE_INFO .accept_ra_rt_info_max_plen = 0, #endif |
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#endif |
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.proxy_ndp = 0, |
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.accept_source_route = 0, /* we do not accept RH0 by default. */ |
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.disable_ipv6 = 0, |
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.accept_dad = 1, |
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}; /* IPv6 Wildcard Address and Loopback Address defined by RFC2553 */ |
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const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT; |
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const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT; |
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const struct in6_addr in6addr_linklocal_allnodes = IN6ADDR_LINKLOCAL_ALLNODES_INIT; const struct in6_addr in6addr_linklocal_allrouters = IN6ADDR_LINKLOCAL_ALLROUTERS_INIT; |
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|
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/* Check if a valid qdisc is available */ |
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static inline bool addrconf_qdisc_ok(const struct net_device *dev) |
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{ |
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return !qdisc_tx_is_noop(dev); |
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} |
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/* Check if a route is valid prefix route */ static inline int addrconf_is_prefix_route(const struct rt6_info *rt) { return ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0); } |
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static void addrconf_del_timer(struct inet6_ifaddr *ifp) { if (del_timer(&ifp->timer)) __in6_ifa_put(ifp); } enum addrconf_timer_t { AC_NONE, AC_DAD, AC_RS, }; static void addrconf_mod_timer(struct inet6_ifaddr *ifp, enum addrconf_timer_t what, unsigned long when) { if (!del_timer(&ifp->timer)) in6_ifa_hold(ifp); switch (what) { case AC_DAD: ifp->timer.function = addrconf_dad_timer; break; case AC_RS: ifp->timer.function = addrconf_rs_timer; break; default:; } ifp->timer.expires = jiffies + when; add_timer(&ifp->timer); } |
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static int snmp6_alloc_dev(struct inet6_dev *idev) { |
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if (snmp_mib_init((void **)idev->stats.ipv6, |
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sizeof(struct ipstats_mib)) < 0) |
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goto err_ip; if (snmp_mib_init((void **)idev->stats.icmpv6, |
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sizeof(struct icmpv6_mib)) < 0) |
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goto err_icmp; |
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if (snmp_mib_init((void **)idev->stats.icmpv6msg, |
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sizeof(struct icmpv6msg_mib)) < 0) |
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goto err_icmpmsg; |
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return 0; |
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err_icmpmsg: snmp_mib_free((void **)idev->stats.icmpv6); |
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err_icmp: snmp_mib_free((void **)idev->stats.ipv6); err_ip: |
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return -ENOMEM; |
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} |
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static void snmp6_free_dev(struct inet6_dev *idev) |
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{ |
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snmp_mib_free((void **)idev->stats.icmpv6msg); |
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snmp_mib_free((void **)idev->stats.icmpv6); snmp_mib_free((void **)idev->stats.ipv6); |
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} |
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/* Nobody refers to this device, we may destroy it. */ |
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static void in6_dev_finish_destroy_rcu(struct rcu_head *head) { struct inet6_dev *idev = container_of(head, struct inet6_dev, rcu); kfree(idev); } |
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void in6_dev_finish_destroy(struct inet6_dev *idev) { struct net_device *dev = idev->dev; |
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WARN_ON(idev->addr_list != NULL); WARN_ON(idev->mc_list != NULL); |
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#ifdef NET_REFCNT_DEBUG printk(KERN_DEBUG "in6_dev_finish_destroy: %s ", dev ? dev->name : "NIL"); #endif dev_put(dev); if (!idev->dead) { printk("Freeing alive inet6 device %p ", idev); return; } snmp6_free_dev(idev); |
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call_rcu(&idev->rcu, in6_dev_finish_destroy_rcu); |
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} |
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EXPORT_SYMBOL(in6_dev_finish_destroy); |
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static struct inet6_dev * ipv6_add_dev(struct net_device *dev) { struct inet6_dev *ndev; ASSERT_RTNL(); if (dev->mtu < IPV6_MIN_MTU) return NULL; |
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ndev = kzalloc(sizeof(struct inet6_dev), GFP_KERNEL); |
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|
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if (ndev == NULL) return NULL; |
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rwlock_init(&ndev->lock); ndev->dev = dev; |
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memcpy(&ndev->cnf, dev_net(dev)->ipv6.devconf_dflt, sizeof(ndev->cnf)); |
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ndev->cnf.mtu6 = dev->mtu; ndev->cnf.sysctl = NULL; ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl); if (ndev->nd_parms == NULL) { kfree(ndev); return NULL; } |
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if (ndev->cnf.forwarding) dev_disable_lro(dev); |
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/* We refer to the device */ dev_hold(dev); |
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|
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if (snmp6_alloc_dev(ndev) < 0) { ADBG((KERN_WARNING "%s(): cannot allocate memory for statistics; dev=%s. ", |
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__func__, dev->name)); |
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neigh_parms_release(&nd_tbl, ndev->nd_parms); ndev->dead = 1; in6_dev_finish_destroy(ndev); return NULL; } |
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|
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if (snmp6_register_dev(ndev) < 0) { ADBG((KERN_WARNING "%s(): cannot create /proc/net/dev_snmp6/%s ", |
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__func__, dev->name)); |
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neigh_parms_release(&nd_tbl, ndev->nd_parms); ndev->dead = 1; in6_dev_finish_destroy(ndev); return NULL; } /* One reference from device. We must do this before * we invoke __ipv6_regen_rndid(). */ in6_dev_hold(ndev); |
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|
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if (dev->flags & (IFF_NOARP | IFF_LOOPBACK)) ndev->cnf.accept_dad = -1; |
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#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE) if (dev->type == ARPHRD_SIT && (dev->priv_flags & IFF_ISATAP)) { printk(KERN_INFO "%s: Disabled Multicast RS ", dev->name); ndev->cnf.rtr_solicits = 0; } #endif |
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#ifdef CONFIG_IPV6_PRIVACY |
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setup_timer(&ndev->regen_timer, ipv6_regen_rndid, (unsigned long)ndev); |
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if ((dev->flags&IFF_LOOPBACK) || dev->type == ARPHRD_TUNNEL || |
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dev->type == ARPHRD_TUNNEL6 || |
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dev->type == ARPHRD_SIT || |
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dev->type == ARPHRD_NONE) { |
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printk(KERN_INFO "%s: Disabled Privacy Extensions ", dev->name); ndev->cnf.use_tempaddr = -1; } else { in6_dev_hold(ndev); ipv6_regen_rndid((unsigned long) ndev); } |
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#endif |
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if (netif_running(dev) && addrconf_qdisc_ok(dev)) |
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ndev->if_flags |= IF_READY; |
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ipv6_mc_init_dev(ndev); ndev->tstamp = jiffies; |
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addrconf_sysctl_register(ndev); |
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/* protected by rtnl_lock */ rcu_assign_pointer(dev->ip6_ptr, ndev); |
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/* Join all-node multicast group */ |
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ipv6_dev_mc_inc(dev, &in6addr_linklocal_allnodes); |
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|
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return ndev; } |
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static struct inet6_dev * ipv6_find_idev(struct net_device *dev) |
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{ struct inet6_dev *idev; ASSERT_RTNL(); if ((idev = __in6_dev_get(dev)) == NULL) { if ((idev = ipv6_add_dev(dev)) == NULL) return NULL; } |
c5e33bddd [IPV6]: Run DAD w... |
425 |
|
1da177e4c Linux-2.6.12-rc2 |
426 427 428 429 430 431 432 433 434 435 |
if (dev->flags&IFF_UP) ipv6_mc_up(idev); return idev; } #ifdef CONFIG_SYSCTL static void dev_forward_change(struct inet6_dev *idev) { struct net_device *dev; struct inet6_ifaddr *ifa; |
1da177e4c Linux-2.6.12-rc2 |
436 437 438 439 |
if (!idev) return; dev = idev->dev; |
0187bdfb0 net: Disable LRO ... |
440 441 |
if (idev->cnf.forwarding) dev_disable_lro(dev); |
1da177e4c Linux-2.6.12-rc2 |
442 |
if (dev && (dev->flags & IFF_MULTICAST)) { |
1da177e4c Linux-2.6.12-rc2 |
443 |
if (idev->cnf.forwarding) |
f3ee4010e [IPV6]: Define co... |
444 |
ipv6_dev_mc_inc(dev, &in6addr_linklocal_allrouters); |
1da177e4c Linux-2.6.12-rc2 |
445 |
else |
f3ee4010e [IPV6]: Define co... |
446 |
ipv6_dev_mc_dec(dev, &in6addr_linklocal_allrouters); |
1da177e4c Linux-2.6.12-rc2 |
447 448 |
} for (ifa=idev->addr_list; ifa; ifa=ifa->if_next) { |
2c12a74cc [IPV6]: anycast r... |
449 450 |
if (ifa->flags&IFA_F_TENTATIVE) continue; |
1da177e4c Linux-2.6.12-rc2 |
451 452 453 454 455 456 |
if (idev->cnf.forwarding) addrconf_join_anycast(ifa); else addrconf_leave_anycast(ifa); } } |
e186932b3 [NETNS]: Use the ... |
457 |
static void addrconf_forward_change(struct net *net, __s32 newf) |
1da177e4c Linux-2.6.12-rc2 |
458 459 460 461 462 |
{ struct net_device *dev; struct inet6_dev *idev; read_lock(&dev_base_lock); |
bff16c2f9 [NETNS]: Make the... |
463 |
for_each_netdev(net, dev) { |
8814c4b53 [IPV6] ADDRCONF: ... |
464 |
rcu_read_lock(); |
1da177e4c Linux-2.6.12-rc2 |
465 466 |
idev = __in6_dev_get(dev); if (idev) { |
e186932b3 [NETNS]: Use the ... |
467 468 |
int changed = (!idev->cnf.forwarding) ^ (!newf); idev->cnf.forwarding = newf; |
1da177e4c Linux-2.6.12-rc2 |
469 470 471 |
if (changed) dev_forward_change(idev); } |
8814c4b53 [IPV6] ADDRCONF: ... |
472 |
rcu_read_unlock(); |
1da177e4c Linux-2.6.12-rc2 |
473 474 475 |
} read_unlock(&dev_base_lock); } |
c8fecf224 [IPV6]: Eliminate... |
476 |
|
b325fddb7 ipv6: Fix sysctl ... |
477 |
static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old) |
c8fecf224 [IPV6]: Eliminate... |
478 |
{ |
bff16c2f9 [NETNS]: Make the... |
479 480 481 |
struct net *net; net = (struct net *)table->extra2; |
441fc2a23 [NETNS]: Use the ... |
482 |
if (p == &net->ipv6.devconf_dflt->forwarding) |
b325fddb7 ipv6: Fix sysctl ... |
483 484 485 |
return 0; if (!rtnl_trylock()) |
5007392d8 net: FIX ipv6_for... |
486 |
return restart_syscall(); |
c8fecf224 [IPV6]: Eliminate... |
487 |
|
e186932b3 [NETNS]: Use the ... |
488 489 490 491 |
if (p == &net->ipv6.devconf_all->forwarding) { __s32 newf = net->ipv6.devconf_all->forwarding; net->ipv6.devconf_dflt->forwarding = newf; addrconf_forward_change(net, newf); |
c8fecf224 [IPV6]: Eliminate... |
492 493 |
} else if ((!*p) ^ (!old)) dev_forward_change((struct inet6_dev *)table->extra1); |
0187bdfb0 net: Disable LRO ... |
494 |
rtnl_unlock(); |
c8fecf224 [IPV6]: Eliminate... |
495 496 |
if (*p) |
7b4da5322 [NETNS][IPV6] rou... |
497 |
rt6_purge_dflt_routers(net); |
b325fddb7 ipv6: Fix sysctl ... |
498 |
return 1; |
c8fecf224 [IPV6]: Eliminate... |
499 |
} |
1da177e4c Linux-2.6.12-rc2 |
500 501 502 503 504 505 |
#endif /* Nobody refers to this ifaddr, destroy it */ void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp) { |
547b792ca net: convert BUG_... |
506 507 |
WARN_ON(ifp->if_next != NULL); WARN_ON(ifp->lst_next != NULL); |
1da177e4c Linux-2.6.12-rc2 |
508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 |
#ifdef NET_REFCNT_DEBUG printk(KERN_DEBUG "inet6_ifa_finish_destroy "); #endif in6_dev_put(ifp->idev); if (del_timer(&ifp->timer)) printk("Timer is still running, when freeing ifa=%p ", ifp); if (!ifp->dead) { printk("Freeing alive inet6 address %p ", ifp); return; } dst_release(&ifp->rt->u.dst); kfree(ifp); } |
e55ffac60 [IPV6]: order add... |
528 529 530 531 |
static void ipv6_link_dev_addr(struct inet6_dev *idev, struct inet6_ifaddr *ifp) { struct inet6_ifaddr *ifa, **ifap; |
8a6ce0c08 [IPV6]: Use ipv6_... |
532 |
int ifp_scope = ipv6_addr_src_scope(&ifp->addr); |
e55ffac60 [IPV6]: order add... |
533 534 535 536 537 538 539 |
/* * Each device address list is sorted in order of scope - * global before linklocal. */ for (ifap = &idev->addr_list; (ifa = *ifap) != NULL; ifap = &ifa->if_next) { |
8a6ce0c08 [IPV6]: Use ipv6_... |
540 |
if (ifp_scope >= ipv6_addr_src_scope(&ifa->addr)) |
e55ffac60 [IPV6]: order add... |
541 542 543 544 545 546 |
break; } ifp->if_next = *ifap; *ifap = ifp; } |
3eb84f492 [IPV6] ADDRCONF: ... |
547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 |
/* * Hash function taken from net_alias.c */ static u8 ipv6_addr_hash(const struct in6_addr *addr) { __u32 word; /* * We perform the hash function over the last 64 bits of the address * This will include the IEEE address token on links that support it. */ word = (__force u32)(addr->s6_addr32[2] ^ addr->s6_addr32[3]); word ^= (word >> 16); word ^= (word >> 8); return ((word ^ (word >> 4)) & 0x0f); } |
1da177e4c Linux-2.6.12-rc2 |
565 566 567 568 |
/* On success it returns ifp with increased reference count */ static struct inet6_ifaddr * ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int pfxlen, |
e431b8c00 [NETLINK]: Explic... |
569 |
int scope, u32 flags) |
1da177e4c Linux-2.6.12-rc2 |
570 571 572 573 574 |
{ struct inet6_ifaddr *ifa = NULL; struct rt6_info *rt; int hash; int err = 0; |
d68b82705 ipv6: Do not assi... |
575 576 577 578 579 580 581 |
int addr_type = ipv6_addr_type(addr); if (addr_type == IPV6_ADDR_ANY || addr_type & IPV6_ADDR_MULTICAST || (!(idev->dev->flags & IFF_LOOPBACK) && addr_type & IPV6_ADDR_LOOPBACK)) return ERR_PTR(-EADDRNOTAVAIL); |
1da177e4c Linux-2.6.12-rc2 |
582 |
|
8814c4b53 [IPV6] ADDRCONF: ... |
583 |
rcu_read_lock_bh(); |
1da177e4c Linux-2.6.12-rc2 |
584 585 586 587 |
if (idev->dead) { err = -ENODEV; /*XXX*/ goto out2; } |
56d417b12 IPv6: Add 'autoco... |
588 |
if (idev->cnf.disable_ipv6) { |
9bdd8d40c ipv6: Fix incorre... |
589 590 591 |
err = -EACCES; goto out2; } |
1da177e4c Linux-2.6.12-rc2 |
592 593 594 |
write_lock(&addrconf_hash_lock); /* Ignore adding duplicate addresses on an interface */ |
c346dca10 [NET] NETNS: Omit... |
595 |
if (ipv6_chk_same_addr(dev_net(idev->dev), addr, idev->dev)) { |
1da177e4c Linux-2.6.12-rc2 |
596 597 598 599 600 |
ADBG(("ipv6_add_addr: already assigned ")); err = -EEXIST; goto out; } |
322f74a43 [IPV6]: Cleanups ... |
601 |
ifa = kzalloc(sizeof(struct inet6_ifaddr), GFP_ATOMIC); |
1da177e4c Linux-2.6.12-rc2 |
602 603 604 605 606 607 608 609 610 611 612 613 614 |
if (ifa == NULL) { ADBG(("ipv6_add_addr: malloc failed ")); err = -ENOBUFS; goto out; } rt = addrconf_dst_alloc(idev, addr, 0); if (IS_ERR(rt)) { err = PTR_ERR(rt); goto out; } |
1da177e4c Linux-2.6.12-rc2 |
615 616 617 618 619 620 621 622 623 |
ipv6_addr_copy(&ifa->addr, addr); spin_lock_init(&ifa->lock); init_timer(&ifa->timer); ifa->timer.data = (unsigned long) ifa; ifa->scope = scope; ifa->prefix_len = pfxlen; ifa->flags = flags | IFA_F_TENTATIVE; ifa->cstamp = ifa->tstamp = jiffies; |
57f5f544f [IPV6]: ipv6_add_... |
624 |
ifa->rt = rt; |
95c385b4d [IPV6] ADDRCONF: ... |
625 626 627 628 629 630 631 632 633 |
/* * part one of RFC 4429, section 3.3 * We should not configure an address as * optimistic if we do not yet know the link * layer address of our nexhop router */ if (rt->rt6i_nexthop == NULL) ifa->flags &= ~IFA_F_OPTIMISTIC; |
1da177e4c Linux-2.6.12-rc2 |
634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 |
ifa->idev = idev; in6_dev_hold(idev); /* For caller */ in6_ifa_hold(ifa); /* Add to big hash table */ hash = ipv6_addr_hash(addr); ifa->lst_next = inet6_addr_lst[hash]; inet6_addr_lst[hash] = ifa; in6_ifa_hold(ifa); write_unlock(&addrconf_hash_lock); write_lock(&idev->lock); /* Add to inet6_dev unicast addr list. */ |
e55ffac60 [IPV6]: order add... |
649 |
ipv6_link_dev_addr(idev, ifa); |
1da177e4c Linux-2.6.12-rc2 |
650 651 652 653 654 655 656 657 |
#ifdef CONFIG_IPV6_PRIVACY if (ifa->flags&IFA_F_TEMPORARY) { ifa->tmp_next = idev->tempaddr_list; idev->tempaddr_list = ifa; in6_ifa_hold(ifa); } #endif |
1da177e4c Linux-2.6.12-rc2 |
658 659 660 |
in6_ifa_hold(ifa); write_unlock(&idev->lock); out2: |
8814c4b53 [IPV6] ADDRCONF: ... |
661 |
rcu_read_unlock_bh(); |
1da177e4c Linux-2.6.12-rc2 |
662 |
|
fd92833a5 [IPV6]: Fix a bra... |
663 |
if (likely(err == 0)) |
e041c6834 [PATCH] Notifier ... |
664 |
atomic_notifier_call_chain(&inet6addr_chain, NETDEV_UP, ifa); |
1da177e4c Linux-2.6.12-rc2 |
665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 |
else { kfree(ifa); ifa = ERR_PTR(err); } return ifa; out: write_unlock(&addrconf_hash_lock); goto out2; } /* This function wants to get referenced ifp and releases it before return */ static void ipv6_del_addr(struct inet6_ifaddr *ifp) { struct inet6_ifaddr *ifa, **ifap; struct inet6_dev *idev = ifp->idev; int hash; int deleted = 0, onlink = 0; unsigned long expires = jiffies; hash = ipv6_addr_hash(&ifp->addr); ifp->dead = 1; write_lock_bh(&addrconf_hash_lock); for (ifap = &inet6_addr_lst[hash]; (ifa=*ifap) != NULL; ifap = &ifa->lst_next) { if (ifa == ifp) { *ifap = ifa->lst_next; __in6_ifa_put(ifp); ifa->lst_next = NULL; break; } } write_unlock_bh(&addrconf_hash_lock); write_lock_bh(&idev->lock); #ifdef CONFIG_IPV6_PRIVACY if (ifp->flags&IFA_F_TEMPORARY) { for (ifap = &idev->tempaddr_list; (ifa=*ifap) != NULL; ifap = &ifa->tmp_next) { if (ifa == ifp) { *ifap = ifa->tmp_next; if (ifp->ifpub) { in6_ifa_put(ifp->ifpub); ifp->ifpub = NULL; } __in6_ifa_put(ifp); ifa->tmp_next = NULL; break; } } } #endif |
1d1428045 [IPV6]: Fix addre... |
720 |
for (ifap = &idev->addr_list; (ifa=*ifap) != NULL;) { |
1da177e4c Linux-2.6.12-rc2 |
721 722 723 724 725 726 727 |
if (ifa == ifp) { *ifap = ifa->if_next; __in6_ifa_put(ifp); ifa->if_next = NULL; if (!(ifp->flags & IFA_F_PERMANENT) || onlink > 0) break; deleted = 1; |
1d1428045 [IPV6]: Fix addre... |
728 |
continue; |
1da177e4c Linux-2.6.12-rc2 |
729 730 731 732 733 734 735 736 737 738 739 740 741 742 |
} else if (ifp->flags & IFA_F_PERMANENT) { if (ipv6_prefix_equal(&ifa->addr, &ifp->addr, ifp->prefix_len)) { if (ifa->flags & IFA_F_PERMANENT) { onlink = 1; if (deleted) break; } else { unsigned long lifetime; if (!onlink) onlink = -1; spin_lock(&ifa->lock); |
4bed72e4f [IPV6] ADDRCONF: ... |
743 744 745 746 747 748 749 |
lifetime = addrconf_timeout_fixup(ifa->valid_lft, HZ); /* * Note: Because this address is * not permanent, lifetime < * LONG_MAX / HZ here. */ |
1da177e4c Linux-2.6.12-rc2 |
750 751 752 753 754 755 756 |
if (time_before(expires, ifa->tstamp + lifetime * HZ)) expires = ifa->tstamp + lifetime * HZ; spin_unlock(&ifa->lock); } } } |
1d1428045 [IPV6]: Fix addre... |
757 |
ifap = &ifa->if_next; |
1da177e4c Linux-2.6.12-rc2 |
758 759 |
} write_unlock_bh(&idev->lock); |
b22385664 ipv6: fix race be... |
760 |
addrconf_del_timer(ifp); |
1da177e4c Linux-2.6.12-rc2 |
761 |
ipv6_ifa_notify(RTM_DELADDR, ifp); |
e041c6834 [PATCH] Notifier ... |
762 |
atomic_notifier_call_chain(&inet6addr_chain, NETDEV_DOWN, ifp); |
1da177e4c Linux-2.6.12-rc2 |
763 |
|
1da177e4c Linux-2.6.12-rc2 |
764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 |
/* * Purge or update corresponding prefix * * 1) we don't purge prefix here if address was not permanent. * prefix is managed by its own lifetime. * 2) if there're no addresses, delete prefix. * 3) if there're still other permanent address(es), * corresponding prefix is still permanent. * 4) otherwise, update prefix lifetime to the * longest valid lifetime among the corresponding * addresses on the device. * Note: subsequent RA will update lifetime. * * --yoshfuji */ if ((ifp->flags & IFA_F_PERMANENT) && onlink < 1) { struct in6_addr prefix; struct rt6_info *rt; |
c346dca10 [NET] NETNS: Omit... |
782 |
struct net *net = dev_net(ifp->idev->dev); |
1da177e4c Linux-2.6.12-rc2 |
783 |
ipv6_addr_prefix(&prefix, &ifp->addr, ifp->prefix_len); |
6fda73500 [NETNS][IPV6] add... |
784 |
rt = rt6_lookup(net, &prefix, NULL, ifp->idev->dev->ifindex, 1); |
1da177e4c Linux-2.6.12-rc2 |
785 |
|
2b5ead464 ipv6 addrconf: In... |
786 |
if (rt && addrconf_is_prefix_route(rt)) { |
1da177e4c Linux-2.6.12-rc2 |
787 |
if (onlink == 0) { |
e0a1ad73d [IPv6] route: Sim... |
788 |
ip6_del_rt(rt); |
1da177e4c Linux-2.6.12-rc2 |
789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 |
rt = NULL; } else if (!(rt->rt6i_flags & RTF_EXPIRES)) { rt->rt6i_expires = expires; rt->rt6i_flags |= RTF_EXPIRES; } } dst_release(&rt->u.dst); } in6_ifa_put(ifp); } #ifdef CONFIG_IPV6_PRIVACY static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *ift) { struct inet6_dev *idev = ifp->idev; struct in6_addr addr, *tmpaddr; unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_cstamp, tmp_tstamp; |
eac55bf97 IPv6: do not crea... |
807 |
unsigned long regen_advance; |
1da177e4c Linux-2.6.12-rc2 |
808 809 810 |
int tmp_plen; int ret = 0; int max_addresses; |
95c385b4d [IPV6] ADDRCONF: ... |
811 |
u32 addr_flags; |
1da177e4c Linux-2.6.12-rc2 |
812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 |
write_lock(&idev->lock); if (ift) { spin_lock_bh(&ift->lock); memcpy(&addr.s6_addr[8], &ift->addr.s6_addr[8], 8); spin_unlock_bh(&ift->lock); tmpaddr = &addr; } else { tmpaddr = NULL; } retry: in6_dev_hold(idev); if (idev->cnf.use_tempaddr <= 0) { write_unlock(&idev->lock); printk(KERN_INFO "ipv6_create_tempaddr(): use_tempaddr is disabled. "); in6_dev_put(idev); ret = -1; goto out; } spin_lock_bh(&ifp->lock); if (ifp->regen_count++ >= idev->cnf.regen_max_retry) { idev->cnf.use_tempaddr = -1; /*XXX*/ spin_unlock_bh(&ifp->lock); write_unlock(&idev->lock); printk(KERN_WARNING "ipv6_create_tempaddr(): regeneration time exceeded. disabled temporary address support. "); in6_dev_put(idev); ret = -1; goto out; } in6_ifa_hold(ifp); memcpy(addr.s6_addr, ifp->addr.s6_addr, 8); if (__ipv6_try_regen_rndid(idev, tmpaddr) < 0) { spin_unlock_bh(&ifp->lock); write_unlock(&idev->lock); printk(KERN_WARNING "ipv6_create_tempaddr(): regeneration of randomized interface id failed. "); in6_ifa_put(ifp); in6_dev_put(idev); ret = -1; goto out; } memcpy(&addr.s6_addr[8], idev->rndid, 8); tmp_valid_lft = min_t(__u32, ifp->valid_lft, idev->cnf.temp_valid_lft); |
1ab1457c4 [NET] IPV6: Fix w... |
862 863 |
tmp_prefered_lft = min_t(__u32, ifp->prefered_lft, |
1da177e4c Linux-2.6.12-rc2 |
864 865 866 867 868 869 |
idev->cnf.temp_prefered_lft - desync_factor / HZ); tmp_plen = ifp->prefix_len; max_addresses = idev->cnf.max_addresses; tmp_cstamp = ifp->cstamp; tmp_tstamp = ifp->tstamp; spin_unlock_bh(&ifp->lock); |
eac55bf97 IPv6: do not crea... |
870 871 872 |
regen_advance = idev->cnf.regen_max_retry * idev->cnf.dad_transmits * idev->nd_parms->retrans_time / HZ; |
1da177e4c Linux-2.6.12-rc2 |
873 |
write_unlock(&idev->lock); |
95c385b4d [IPV6] ADDRCONF: ... |
874 |
|
eac55bf97 IPv6: do not crea... |
875 876 877 878 879 880 881 882 883 884 885 |
/* A temporary address is created only if this calculated Preferred * Lifetime is greater than REGEN_ADVANCE time units. In particular, * an implementation must not create a temporary address with a zero * Preferred Lifetime. */ if (tmp_prefered_lft <= regen_advance) { in6_ifa_put(ifp); in6_dev_put(idev); ret = -1; goto out; } |
95c385b4d [IPV6] ADDRCONF: ... |
886 887 888 889 |
addr_flags = IFA_F_TEMPORARY; /* set in addrconf_prefix_rcv() */ if (ifp->flags & IFA_F_OPTIMISTIC) addr_flags |= IFA_F_OPTIMISTIC; |
1da177e4c Linux-2.6.12-rc2 |
890 |
ift = !max_addresses || |
1ab1457c4 [NET] IPV6: Fix w... |
891 |
ipv6_count_addresses(idev) < max_addresses ? |
1da177e4c Linux-2.6.12-rc2 |
892 |
ipv6_add_addr(idev, &addr, tmp_plen, |
95c385b4d [IPV6] ADDRCONF: ... |
893 894 |
ipv6_addr_type(&addr)&IPV6_ADDR_SCOPE_MASK, addr_flags) : NULL; |
1da177e4c Linux-2.6.12-rc2 |
895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 |
if (!ift || IS_ERR(ift)) { in6_ifa_put(ifp); in6_dev_put(idev); printk(KERN_INFO "ipv6_create_tempaddr(): retry temporary address regeneration. "); tmpaddr = &addr; write_lock(&idev->lock); goto retry; } spin_lock_bh(&ift->lock); ift->ifpub = ifp; ift->valid_lft = tmp_valid_lft; ift->prefered_lft = tmp_prefered_lft; ift->cstamp = tmp_cstamp; ift->tstamp = tmp_tstamp; spin_unlock_bh(&ift->lock); addrconf_dad_start(ift, 0); in6_ifa_put(ift); in6_dev_put(idev); out: return ret; } #endif /* |
072047e4d [IPV6]: RFC3484 c... |
923 |
* Choose an appropriate source address (RFC3484) |
1da177e4c Linux-2.6.12-rc2 |
924 |
*/ |
a9b05723f [IPV6] ADDRCONF: ... |
925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 |
enum { IPV6_SADDR_RULE_INIT = 0, IPV6_SADDR_RULE_LOCAL, IPV6_SADDR_RULE_SCOPE, IPV6_SADDR_RULE_PREFERRED, #ifdef CONFIG_IPV6_MIP6 IPV6_SADDR_RULE_HOA, #endif IPV6_SADDR_RULE_OIF, IPV6_SADDR_RULE_LABEL, #ifdef CONFIG_IPV6_PRIVACY IPV6_SADDR_RULE_PRIVACY, #endif IPV6_SADDR_RULE_ORCHID, IPV6_SADDR_RULE_PREFIX, IPV6_SADDR_RULE_MAX }; |
072047e4d [IPV6]: RFC3484 c... |
942 |
struct ipv6_saddr_score { |
a9b05723f [IPV6] ADDRCONF: ... |
943 944 945 946 947 948 |
int rule; int addr_type; struct inet6_ifaddr *ifa; DECLARE_BITMAP(scorebits, IPV6_SADDR_RULE_MAX); int scopedist; int matchlen; |
072047e4d [IPV6]: RFC3484 c... |
949 |
}; |
a9b05723f [IPV6] ADDRCONF: ... |
950 |
struct ipv6_saddr_dst { |
9acd9f3ae [IPV6]: Make addr... |
951 |
const struct in6_addr *addr; |
a9b05723f [IPV6] ADDRCONF: ... |
952 953 954 |
int ifindex; int scope; int label; |
7cbca67c0 [IPV6]: Support S... |
955 |
unsigned int prefs; |
a9b05723f [IPV6] ADDRCONF: ... |
956 |
}; |
072047e4d [IPV6]: RFC3484 c... |
957 |
|
b6f99a211 [NET]: fix up mis... |
958 |
static inline int ipv6_saddr_preferred(int type) |
1da177e4c Linux-2.6.12-rc2 |
959 |
{ |
072047e4d [IPV6]: RFC3484 c... |
960 961 962 963 |
if (type & (IPV6_ADDR_MAPPED|IPV6_ADDR_COMPATv4| IPV6_ADDR_LOOPBACK|IPV6_ADDR_RESERVED)) return 1; return 0; |
1da177e4c Linux-2.6.12-rc2 |
964 |
} |
3de232554 ipv6 netns: Addre... |
965 966 |
static int ipv6_get_saddr_eval(struct net *net, struct ipv6_saddr_score *score, |
a9b05723f [IPV6] ADDRCONF: ... |
967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 |
struct ipv6_saddr_dst *dst, int i) { int ret; if (i <= score->rule) { switch (i) { case IPV6_SADDR_RULE_SCOPE: ret = score->scopedist; break; case IPV6_SADDR_RULE_PREFIX: ret = score->matchlen; break; default: ret = !!test_bit(i, score->scorebits); } goto out; } switch (i) { case IPV6_SADDR_RULE_INIT: /* Rule 0: remember if hiscore is not ready yet */ ret = !!score->ifa; break; case IPV6_SADDR_RULE_LOCAL: /* Rule 1: Prefer same address */ ret = ipv6_addr_equal(&score->ifa->addr, dst->addr); break; case IPV6_SADDR_RULE_SCOPE: /* Rule 2: Prefer appropriate scope * * ret * ^ * -1 | d 15 * ---+--+-+---> scope * | * | d is scope of the destination. * B-d | \ * | \ <- smaller scope is better if * B-15 | \ if scope is enough for destinaion. * | ret = B - scope (-1 <= scope >= d <= 15). * d-C-1 | / * |/ <- greater is better * -C / if scope is not enough for destination. * /| ret = scope - C (-1 <= d < scope <= 15). * * d - C - 1 < B -15 (for all -1 <= d <= 15). * C > d + 14 - B >= 15 + 14 - B = 29 - B. * Assume B = 0 and we get C > 29. */ ret = __ipv6_addr_src_scope(score->addr_type); if (ret >= dst->scope) ret = -ret; else ret -= 128; /* 30 is enough */ score->scopedist = ret; break; case IPV6_SADDR_RULE_PREFERRED: /* Rule 3: Avoid deprecated and optimistic addresses */ ret = ipv6_saddr_preferred(score->addr_type) || !(score->ifa->flags & (IFA_F_DEPRECATED|IFA_F_OPTIMISTIC)); break; #ifdef CONFIG_IPV6_MIP6 case IPV6_SADDR_RULE_HOA: |
7cbca67c0 [IPV6]: Support S... |
1031 |
{ |
a9b05723f [IPV6] ADDRCONF: ... |
1032 |
/* Rule 4: Prefer home address */ |
7cbca67c0 [IPV6]: Support S... |
1033 1034 |
int prefhome = !(dst->prefs & IPV6_PREFER_SRC_COA); ret = !(score->ifa->flags & IFA_F_HOMEADDRESS) ^ prefhome; |
a9b05723f [IPV6] ADDRCONF: ... |
1035 |
break; |
7cbca67c0 [IPV6]: Support S... |
1036 |
} |
a9b05723f [IPV6] ADDRCONF: ... |
1037 1038 1039 1040 1041 1042 1043 1044 |
#endif case IPV6_SADDR_RULE_OIF: /* Rule 5: Prefer outgoing interface */ ret = (!dst->ifindex || dst->ifindex == score->ifa->idev->dev->ifindex); break; case IPV6_SADDR_RULE_LABEL: /* Rule 6: Prefer matching label */ |
3de232554 ipv6 netns: Addre... |
1045 1046 |
ret = ipv6_addr_label(net, &score->ifa->addr, score->addr_type, |
a9b05723f [IPV6] ADDRCONF: ... |
1047 1048 1049 1050 |
score->ifa->idev->dev->ifindex) == dst->label; break; #ifdef CONFIG_IPV6_PRIVACY case IPV6_SADDR_RULE_PRIVACY: |
7cbca67c0 [IPV6]: Support S... |
1051 |
{ |
a9b05723f [IPV6] ADDRCONF: ... |
1052 1053 1054 |
/* Rule 7: Prefer public address * Note: prefer temprary address if use_tempaddr >= 2 */ |
7cbca67c0 [IPV6]: Support S... |
1055 1056 1057 1058 |
int preftmp = dst->prefs & (IPV6_PREFER_SRC_PUBLIC|IPV6_PREFER_SRC_TMP) ? !!(dst->prefs & IPV6_PREFER_SRC_TMP) : score->ifa->idev->cnf.use_tempaddr >= 2; ret = (!(score->ifa->flags & IFA_F_TEMPORARY)) ^ preftmp; |
a9b05723f [IPV6] ADDRCONF: ... |
1059 |
break; |
7cbca67c0 [IPV6]: Support S... |
1060 |
} |
a9b05723f [IPV6] ADDRCONF: ... |
1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 |
#endif case IPV6_SADDR_RULE_ORCHID: /* Rule 8-: Prefer ORCHID vs ORCHID or * non-ORCHID vs non-ORCHID */ ret = !(ipv6_addr_orchid(&score->ifa->addr) ^ ipv6_addr_orchid(dst->addr)); break; case IPV6_SADDR_RULE_PREFIX: /* Rule 8: Use longest matching prefix */ score->matchlen = ret = ipv6_addr_diff(&score->ifa->addr, dst->addr); break; default: ret = 0; } if (ret) __set_bit(i, score->scorebits); score->rule = i; out: return ret; } |
191cd5825 netns: Add networ... |
1084 |
int ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev, |
9acd9f3ae [IPV6]: Make addr... |
1085 |
const struct in6_addr *daddr, unsigned int prefs, |
7cbca67c0 [IPV6]: Support S... |
1086 |
struct in6_addr *saddr) |
1da177e4c Linux-2.6.12-rc2 |
1087 |
{ |
a9b05723f [IPV6] ADDRCONF: ... |
1088 1089 |
struct ipv6_saddr_score scores[2], *score = &scores[0], *hiscore = &scores[1]; |
a9b05723f [IPV6] ADDRCONF: ... |
1090 |
struct ipv6_saddr_dst dst; |
072047e4d [IPV6]: RFC3484 c... |
1091 |
struct net_device *dev; |
a9b05723f [IPV6] ADDRCONF: ... |
1092 |
int dst_type; |
1da177e4c Linux-2.6.12-rc2 |
1093 |
|
a9b05723f [IPV6] ADDRCONF: ... |
1094 1095 1096 1097 |
dst_type = __ipv6_addr_type(daddr); dst.addr = daddr; dst.ifindex = dst_dev ? dst_dev->ifindex : 0; dst.scope = __ipv6_addr_src_scope(dst_type); |
3de232554 ipv6 netns: Addre... |
1098 |
dst.label = ipv6_addr_label(net, daddr, dst_type, dst.ifindex); |
7cbca67c0 [IPV6]: Support S... |
1099 |
dst.prefs = prefs; |
a9b05723f [IPV6] ADDRCONF: ... |
1100 1101 1102 |
hiscore->rule = -1; hiscore->ifa = NULL; |
1da177e4c Linux-2.6.12-rc2 |
1103 |
|
072047e4d [IPV6]: RFC3484 c... |
1104 |
read_lock(&dev_base_lock); |
8814c4b53 [IPV6] ADDRCONF: ... |
1105 |
rcu_read_lock(); |
1da177e4c Linux-2.6.12-rc2 |
1106 |
|
6fda73500 [NETNS][IPV6] add... |
1107 |
for_each_netdev(net, dev) { |
072047e4d [IPV6]: RFC3484 c... |
1108 |
struct inet6_dev *idev; |
072047e4d [IPV6]: RFC3484 c... |
1109 |
|
a9b05723f [IPV6] ADDRCONF: ... |
1110 |
/* Candidate Source Address (section 4) |
072047e4d [IPV6]: RFC3484 c... |
1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 |
* - multicast and link-local destination address, * the set of candidate source address MUST only * include addresses assigned to interfaces * belonging to the same link as the outgoing * interface. * (- For site-local destination addresses, the * set of candidate source addresses MUST only * include addresses assigned to interfaces * belonging to the same site as the outgoing * interface.) */ |
a9b05723f [IPV6] ADDRCONF: ... |
1122 1123 1124 |
if (((dst_type & IPV6_ADDR_MULTICAST) || dst.scope <= IPV6_ADDR_SCOPE_LINKLOCAL) && dst.ifindex && dev->ifindex != dst.ifindex) |
072047e4d [IPV6]: RFC3484 c... |
1125 |
continue; |
1da177e4c Linux-2.6.12-rc2 |
1126 |
|
1da177e4c Linux-2.6.12-rc2 |
1127 |
idev = __in6_dev_get(dev); |
072047e4d [IPV6]: RFC3484 c... |
1128 1129 1130 1131 |
if (!idev) continue; read_lock_bh(&idev->lock); |
a9b05723f [IPV6] ADDRCONF: ... |
1132 1133 |
for (score->ifa = idev->addr_list; score->ifa; score->ifa = score->ifa->if_next) { int i; |
072047e4d [IPV6]: RFC3484 c... |
1134 |
|
a9b05723f [IPV6] ADDRCONF: ... |
1135 |
/* |
6b3ae80a6 [IPV6]: Don't sel... |
1136 1137 1138 |
* - Tentative Address (RFC2462 section 5.4) * - A tentative address is not considered * "assigned to an interface" in the traditional |
95c385b4d [IPV6] ADDRCONF: ... |
1139 |
* sense, unless it is also flagged as optimistic. |
6b3ae80a6 [IPV6]: Don't sel... |
1140 |
* - Candidate Source Address (section 4) |
072047e4d [IPV6]: RFC3484 c... |
1141 1142 1143 1144 |
* - In any case, anycast addresses, multicast * addresses, and the unspecified address MUST * NOT be included in a candidate set. */ |
a9b05723f [IPV6] ADDRCONF: ... |
1145 1146 |
if ((score->ifa->flags & IFA_F_TENTATIVE) && (!(score->ifa->flags & IFA_F_OPTIMISTIC))) |
6b3ae80a6 [IPV6]: Don't sel... |
1147 |
continue; |
a9b05723f [IPV6] ADDRCONF: ... |
1148 1149 1150 1151 1152 |
score->addr_type = __ipv6_addr_type(&score->ifa->addr); if (unlikely(score->addr_type == IPV6_ADDR_ANY || score->addr_type & IPV6_ADDR_MULTICAST)) { |
072047e4d [IPV6]: RFC3484 c... |
1153 |
LIMIT_NETDEBUG(KERN_DEBUG |
3b6d821c4 [IPV6]: Add missi... |
1154 |
"ADDRCONF: unspecified / multicast address " |
072047e4d [IPV6]: RFC3484 c... |
1155 1156 1157 1158 |
"assigned as unicast address on %s", dev->name); continue; } |
a9b05723f [IPV6] ADDRCONF: ... |
1159 1160 1161 1162 1163 |
score->rule = -1; bitmap_zero(score->scorebits, IPV6_SADDR_RULE_MAX); for (i = 0; i < IPV6_SADDR_RULE_MAX; i++) { int minihiscore, miniscore; |
3de232554 ipv6 netns: Addre... |
1164 1165 |
minihiscore = ipv6_get_saddr_eval(net, hiscore, &dst, i); miniscore = ipv6_get_saddr_eval(net, score, &dst, i); |
a9b05723f [IPV6] ADDRCONF: ... |
1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 |
if (minihiscore > miniscore) { if (i == IPV6_SADDR_RULE_SCOPE && score->scopedist > 0) { /* * special case: * each remaining entry * has too small (not enough) * scope, because ifa entries * are sorted by their scope * values. */ goto try_nextdev; } break; } else if (minihiscore < miniscore) { |
a9b05723f [IPV6] ADDRCONF: ... |
1182 1183 1184 1185 |
if (hiscore->ifa) in6_ifa_put(hiscore->ifa); in6_ifa_hold(score->ifa); |
a0bffffc1 net/*: use linux/... |
1186 |
swap(hiscore, score); |
a9b05723f [IPV6] ADDRCONF: ... |
1187 1188 1189 1190 1191 |
/* restore our iterator */ score->ifa = hiscore->ifa; break; |
1da177e4c Linux-2.6.12-rc2 |
1192 |
} |
072047e4d [IPV6]: RFC3484 c... |
1193 |
} |
1da177e4c Linux-2.6.12-rc2 |
1194 |
} |
a9b05723f [IPV6] ADDRCONF: ... |
1195 |
try_nextdev: |
072047e4d [IPV6]: RFC3484 c... |
1196 |
read_unlock_bh(&idev->lock); |
1da177e4c Linux-2.6.12-rc2 |
1197 |
} |
8814c4b53 [IPV6] ADDRCONF: ... |
1198 |
rcu_read_unlock(); |
1da177e4c Linux-2.6.12-rc2 |
1199 |
read_unlock(&dev_base_lock); |
a9b05723f [IPV6] ADDRCONF: ... |
1200 |
if (!hiscore->ifa) |
072047e4d [IPV6]: RFC3484 c... |
1201 |
return -EADDRNOTAVAIL; |
1ab1457c4 [NET] IPV6: Fix w... |
1202 |
|
a9b05723f [IPV6] ADDRCONF: ... |
1203 1204 |
ipv6_addr_copy(saddr, &hiscore->ifa->addr); in6_ifa_put(hiscore->ifa); |
072047e4d [IPV6]: RFC3484 c... |
1205 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1206 |
} |
5e5f3f0f8 [IPV6] ADDRCONF: ... |
1207 |
EXPORT_SYMBOL(ipv6_dev_get_saddr); |
1da177e4c Linux-2.6.12-rc2 |
1208 |
|
95c385b4d [IPV6] ADDRCONF: ... |
1209 1210 |
int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr, unsigned char banned_flags) |
1da177e4c Linux-2.6.12-rc2 |
1211 1212 1213 |
{ struct inet6_dev *idev; int err = -EADDRNOTAVAIL; |
8814c4b53 [IPV6] ADDRCONF: ... |
1214 |
rcu_read_lock(); |
1da177e4c Linux-2.6.12-rc2 |
1215 1216 1217 1218 1219 |
if ((idev = __in6_dev_get(dev)) != NULL) { struct inet6_ifaddr *ifp; read_lock_bh(&idev->lock); for (ifp=idev->addr_list; ifp; ifp=ifp->if_next) { |
95c385b4d [IPV6] ADDRCONF: ... |
1220 |
if (ifp->scope == IFA_LINK && !(ifp->flags & banned_flags)) { |
1da177e4c Linux-2.6.12-rc2 |
1221 1222 1223 1224 1225 1226 1227 |
ipv6_addr_copy(addr, &ifp->addr); err = 0; break; } } read_unlock_bh(&idev->lock); } |
8814c4b53 [IPV6] ADDRCONF: ... |
1228 |
rcu_read_unlock(); |
1da177e4c Linux-2.6.12-rc2 |
1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 |
return err; } static int ipv6_count_addresses(struct inet6_dev *idev) { int cnt = 0; struct inet6_ifaddr *ifp; read_lock_bh(&idev->lock); for (ifp=idev->addr_list; ifp; ifp=ifp->if_next) cnt++; read_unlock_bh(&idev->lock); return cnt; } |
bfeade087 [NETNS][IPV6]: in... |
1243 1244 |
int ipv6_chk_addr(struct net *net, struct in6_addr *addr, struct net_device *dev, int strict) |
1da177e4c Linux-2.6.12-rc2 |
1245 1246 1247 1248 1249 1250 |
{ struct inet6_ifaddr * ifp; u8 hash = ipv6_addr_hash(addr); read_lock_bh(&addrconf_hash_lock); for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) { |
878628fbf [NET] NETNS: Omit... |
1251 |
if (!net_eq(dev_net(ifp->idev->dev), net)) |
bfeade087 [NETNS][IPV6]: in... |
1252 |
continue; |
1da177e4c Linux-2.6.12-rc2 |
1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 |
if (ipv6_addr_equal(&ifp->addr, addr) && !(ifp->flags&IFA_F_TENTATIVE)) { if (dev == NULL || ifp->idev->dev == dev || !(ifp->scope&(IFA_LINK|IFA_HOST) || strict)) break; } } read_unlock_bh(&addrconf_hash_lock); return ifp != NULL; } |
7159039a1 [IPV6]: Decentral... |
1263 |
EXPORT_SYMBOL(ipv6_chk_addr); |
1da177e4c Linux-2.6.12-rc2 |
1264 |
static |
06bfe655e [NETNS][IPV6]: in... |
1265 1266 |
int ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr, struct net_device *dev) |
1da177e4c Linux-2.6.12-rc2 |
1267 1268 1269 1270 1271 |
{ struct inet6_ifaddr * ifp; u8 hash = ipv6_addr_hash(addr); for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) { |
878628fbf [NET] NETNS: Omit... |
1272 |
if (!net_eq(dev_net(ifp->idev->dev), net)) |
06bfe655e [NETNS][IPV6]: in... |
1273 |
continue; |
1da177e4c Linux-2.6.12-rc2 |
1274 1275 1276 1277 1278 1279 1280 |
if (ipv6_addr_equal(&ifp->addr, addr)) { if (dev == NULL || ifp->idev->dev == dev) break; } } return ifp != NULL; } |
52eeeb848 [IPV6]: Unify ip6... |
1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 |
int ipv6_chk_prefix(struct in6_addr *addr, struct net_device *dev) { struct inet6_dev *idev; struct inet6_ifaddr *ifa; int onlink; onlink = 0; rcu_read_lock(); idev = __in6_dev_get(dev); if (idev) { read_lock_bh(&idev->lock); for (ifa = idev->addr_list; ifa; ifa = ifa->if_next) { onlink = ipv6_prefix_equal(addr, &ifa->addr, ifa->prefix_len); if (onlink) break; } read_unlock_bh(&idev->lock); } rcu_read_unlock(); return onlink; } EXPORT_SYMBOL(ipv6_chk_prefix); |
9acd9f3ae [IPV6]: Make addr... |
1305 |
struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *addr, |
1cab3da6b [NETNS][IPV6]: in... |
1306 |
struct net_device *dev, int strict) |
1da177e4c Linux-2.6.12-rc2 |
1307 1308 1309 1310 1311 1312 |
{ struct inet6_ifaddr * ifp; u8 hash = ipv6_addr_hash(addr); read_lock_bh(&addrconf_hash_lock); for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) { |
878628fbf [NET] NETNS: Omit... |
1313 |
if (!net_eq(dev_net(ifp->idev->dev), net)) |
1cab3da6b [NETNS][IPV6]: in... |
1314 |
continue; |
1da177e4c Linux-2.6.12-rc2 |
1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 |
if (ipv6_addr_equal(&ifp->addr, addr)) { if (dev == NULL || ifp->idev->dev == dev || !(ifp->scope&(IFA_LINK|IFA_HOST) || strict)) { in6_ifa_hold(ifp); break; } } } read_unlock_bh(&addrconf_hash_lock); return ifp; } |
1da177e4c Linux-2.6.12-rc2 |
1327 |
/* Gets referenced address, destroys ifaddr */ |
9f5336e21 [IPV6]: small cle... |
1328 |
static void addrconf_dad_stop(struct inet6_ifaddr *ifp) |
1da177e4c Linux-2.6.12-rc2 |
1329 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 |
if (ifp->flags&IFA_F_PERMANENT) { spin_lock_bh(&ifp->lock); addrconf_del_timer(ifp); ifp->flags |= IFA_F_TENTATIVE; spin_unlock_bh(&ifp->lock); in6_ifa_put(ifp); #ifdef CONFIG_IPV6_PRIVACY } else if (ifp->flags&IFA_F_TEMPORARY) { struct inet6_ifaddr *ifpub; spin_lock_bh(&ifp->lock); ifpub = ifp->ifpub; if (ifpub) { in6_ifa_hold(ifpub); spin_unlock_bh(&ifp->lock); ipv6_create_tempaddr(ifpub, ifp); in6_ifa_put(ifpub); } else { spin_unlock_bh(&ifp->lock); } ipv6_del_addr(ifp); #endif } else ipv6_del_addr(ifp); } |
3c21edbd1 [IPV6]: Defer IPv... |
1354 1355 |
void addrconf_dad_failure(struct inet6_ifaddr *ifp) { |
1b34be74c ipv6 addrconf: ad... |
1356 |
struct inet6_dev *idev = ifp->idev; |
9bdd8d40c ipv6: Fix incorre... |
1357 1358 1359 1360 1361 |
if (net_ratelimit()) printk(KERN_INFO "%s: IPv6 duplicate address detected! ", ifp->idev->dev->name); |
1b34be74c ipv6 addrconf: ad... |
1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 |
if (idev->cnf.accept_dad > 1 && !idev->cnf.disable_ipv6) { struct in6_addr addr; addr.s6_addr32[0] = htonl(0xfe800000); addr.s6_addr32[1] = 0; if (!ipv6_generate_eui64(addr.s6_addr + 8, idev->dev) && ipv6_addr_equal(&ifp->addr, &addr)) { /* DAD failed for link-local based on MAC address */ idev->cnf.disable_ipv6 = 1; |
9bdd8d40c ipv6: Fix incorre... |
1372 1373 1374 1375 |
printk(KERN_INFO "%s: IPv6 being disabled! ", ifp->idev->dev->name); |
1b34be74c ipv6 addrconf: ad... |
1376 1377 |
} } |
3c21edbd1 [IPV6]: Defer IPv... |
1378 1379 |
addrconf_dad_stop(ifp); } |
1da177e4c Linux-2.6.12-rc2 |
1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 |
/* Join to solicited addr multicast group. */ void addrconf_join_solict(struct net_device *dev, struct in6_addr *addr) { struct in6_addr maddr; if (dev->flags&(IFF_LOOPBACK|IFF_NOARP)) return; addrconf_addr_solict_mult(addr, &maddr); ipv6_dev_mc_inc(dev, &maddr); } void addrconf_leave_solict(struct inet6_dev *idev, struct in6_addr *addr) { struct in6_addr maddr; if (idev->dev->flags&(IFF_LOOPBACK|IFF_NOARP)) return; addrconf_addr_solict_mult(addr, &maddr); __ipv6_dev_mc_dec(idev, &maddr); } |
20380731b [NET]: Fix sparse... |
1404 |
static void addrconf_join_anycast(struct inet6_ifaddr *ifp) |
1da177e4c Linux-2.6.12-rc2 |
1405 1406 1407 1408 1409 1410 1411 |
{ struct in6_addr addr; ipv6_addr_prefix(&addr, &ifp->addr, ifp->prefix_len); if (ipv6_addr_any(&addr)) return; ipv6_dev_ac_inc(ifp->idev->dev, &addr); } |
20380731b [NET]: Fix sparse... |
1412 |
static void addrconf_leave_anycast(struct inet6_ifaddr *ifp) |
1da177e4c Linux-2.6.12-rc2 |
1413 1414 1415 1416 1417 1418 1419 |
{ struct in6_addr addr; ipv6_addr_prefix(&addr, &ifp->addr, ifp->prefix_len); if (ipv6_addr_any(&addr)) return; __ipv6_dev_ac_dec(ifp->idev, &addr); } |
073a8e0e1 [IPV6]: ADDRCONF:... |
1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 |
static int addrconf_ifid_eui48(u8 *eui, struct net_device *dev) { if (dev->addr_len != ETH_ALEN) return -1; memcpy(eui, dev->dev_addr, 3); memcpy(eui + 5, dev->dev_addr + 3, 3); /* * 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. */ if (dev->dev_id) { eui[3] = (dev->dev_id >> 8) & 0xFF; eui[4] = dev->dev_id & 0xFF; } else { eui[3] = 0xFF; eui[4] = 0xFE; eui[0] ^= 2; } return 0; } static int addrconf_ifid_arcnet(u8 *eui, struct net_device *dev) { /* XXX: inherit EUI-64 from other interface -- yoshfuji */ if (dev->addr_len != ARCNET_ALEN) return -1; memset(eui, 0, 7); eui[7] = *(u8*)dev->dev_addr; return 0; } static int addrconf_ifid_infiniband(u8 *eui, struct net_device *dev) { if (dev->addr_len != INFINIBAND_ALEN) return -1; memcpy(eui, dev->dev_addr + 12, 8); eui[0] |= 2; return 0; } |
dfd982baf [IPV6] ADDRCONF: ... |
1469 1470 |
int __ipv6_isatap_ifid(u8 *eui, __be32 addr) { |
9af28511b addrconf: refuse ... |
1471 1472 |
if (addr == 0) return -1; |
dfd982baf [IPV6] ADDRCONF: ... |
1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 |
eui[0] = (ipv4_is_zeronet(addr) || ipv4_is_private_10(addr) || ipv4_is_loopback(addr) || ipv4_is_linklocal_169(addr) || ipv4_is_private_172(addr) || ipv4_is_test_192(addr) || ipv4_is_anycast_6to4(addr) || ipv4_is_private_192(addr) || ipv4_is_test_198(addr) || ipv4_is_multicast(addr) || ipv4_is_lbcast(addr)) ? 0x00 : 0x02; eui[1] = 0; eui[2] = 0x5E; eui[3] = 0xFE; memcpy(eui + 4, &addr, 4); return 0; } EXPORT_SYMBOL(__ipv6_isatap_ifid); static int addrconf_ifid_sit(u8 *eui, struct net_device *dev) { if (dev->priv_flags & IFF_ISATAP) return __ipv6_isatap_ifid(eui, *(__be32 *)dev->dev_addr); return -1; } |
1da177e4c Linux-2.6.12-rc2 |
1493 1494 1495 1496 1497 1498 |
static int ipv6_generate_eui64(u8 *eui, struct net_device *dev) { switch (dev->type) { case ARPHRD_ETHER: case ARPHRD_FDDI: case ARPHRD_IEEE802_TR: |
073a8e0e1 [IPV6]: ADDRCONF:... |
1499 |
return addrconf_ifid_eui48(eui, dev); |
1da177e4c Linux-2.6.12-rc2 |
1500 |
case ARPHRD_ARCNET: |
073a8e0e1 [IPV6]: ADDRCONF:... |
1501 |
return addrconf_ifid_arcnet(eui, dev); |
1da177e4c Linux-2.6.12-rc2 |
1502 |
case ARPHRD_INFINIBAND: |
073a8e0e1 [IPV6]: ADDRCONF:... |
1503 |
return addrconf_ifid_infiniband(eui, dev); |
c7dc89c0a [IPV6]: Add RFC42... |
1504 |
case ARPHRD_SIT: |
dfd982baf [IPV6] ADDRCONF: ... |
1505 |
return addrconf_ifid_sit(eui, dev); |
1da177e4c Linux-2.6.12-rc2 |
1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 |
} return -1; } static int ipv6_inherit_eui64(u8 *eui, struct inet6_dev *idev) { int err = -1; struct inet6_ifaddr *ifp; read_lock_bh(&idev->lock); for (ifp=idev->addr_list; ifp; ifp=ifp->if_next) { if (ifp->scope == IFA_LINK && !(ifp->flags&IFA_F_TENTATIVE)) { memcpy(eui, ifp->addr.s6_addr+8, 8); err = 0; break; } } read_unlock_bh(&idev->lock); return err; } #ifdef CONFIG_IPV6_PRIVACY /* (re)generation of randomized interface identifier (RFC 3041 3.2, 3.5) */ static int __ipv6_regen_rndid(struct inet6_dev *idev) { |
1da177e4c Linux-2.6.12-rc2 |
1531 |
regen: |
955189efb [IPV6]: ADDRCONF:... |
1532 |
get_random_bytes(idev->rndid, sizeof(idev->rndid)); |
1da177e4c Linux-2.6.12-rc2 |
1533 |
idev->rndid[0] &= ~0x02; |
1da177e4c Linux-2.6.12-rc2 |
1534 1535 1536 1537 1538 1539 1540 |
/* * <draft-ietf-ipngwg-temp-addresses-v2-00.txt>: * check if generated address is not inappropriate * * - Reserved subnet anycast (RFC 2526) * 11111101 11....11 1xxxxxxx |
c7dc89c0a [IPV6]: Add RFC42... |
1541 |
* - ISATAP (RFC4214) 6.1 |
1da177e4c Linux-2.6.12-rc2 |
1542 1543 1544 1545 |
* 00-00-5E-FE-xx-xx-xx-xx * - value 0 * - XXX: already assigned to an address on the device */ |
1ab1457c4 [NET] IPV6: Fix w... |
1546 |
if (idev->rndid[0] == 0xfd && |
1da177e4c Linux-2.6.12-rc2 |
1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 |
(idev->rndid[1]&idev->rndid[2]&idev->rndid[3]&idev->rndid[4]&idev->rndid[5]&idev->rndid[6]) == 0xff && (idev->rndid[7]&0x80)) goto regen; if ((idev->rndid[0]|idev->rndid[1]) == 0) { if (idev->rndid[2] == 0x5e && idev->rndid[3] == 0xfe) goto regen; if ((idev->rndid[2]|idev->rndid[3]|idev->rndid[4]|idev->rndid[5]|idev->rndid[6]|idev->rndid[7]) == 0x00) goto regen; } return 0; } static void ipv6_regen_rndid(unsigned long data) { struct inet6_dev *idev = (struct inet6_dev *) data; unsigned long expires; |
8814c4b53 [IPV6] ADDRCONF: ... |
1564 |
rcu_read_lock_bh(); |
1da177e4c Linux-2.6.12-rc2 |
1565 1566 1567 1568 1569 1570 1571 |
write_lock_bh(&idev->lock); if (idev->dead) goto out; if (__ipv6_regen_rndid(idev) < 0) goto out; |
1ab1457c4 [NET] IPV6: Fix w... |
1572 |
|
1da177e4c Linux-2.6.12-rc2 |
1573 |
expires = jiffies + |
1ab1457c4 [NET] IPV6: Fix w... |
1574 |
idev->cnf.temp_prefered_lft * HZ - |
1da177e4c Linux-2.6.12-rc2 |
1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 |
idev->cnf.regen_max_retry * idev->cnf.dad_transmits * idev->nd_parms->retrans_time - desync_factor; if (time_before(expires, jiffies)) { printk(KERN_WARNING "ipv6_regen_rndid(): too short regeneration interval; timer disabled for %s. ", idev->dev->name); goto out; } if (!mod_timer(&idev->regen_timer, expires)) in6_dev_hold(idev); out: write_unlock_bh(&idev->lock); |
8814c4b53 [IPV6] ADDRCONF: ... |
1589 |
rcu_read_unlock_bh(); |
1da177e4c Linux-2.6.12-rc2 |
1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 |
in6_dev_put(idev); } static int __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpaddr) { int ret = 0; if (tmpaddr && memcmp(idev->rndid, &tmpaddr->s6_addr[8], 8) == 0) ret = __ipv6_regen_rndid(idev); return ret; } #endif /* * Add prefix route. */ static void addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev, |
e431b8c00 [NETLINK]: Explic... |
1608 |
unsigned long expires, u32 flags) |
1da177e4c Linux-2.6.12-rc2 |
1609 |
{ |
86872cb57 [IPv6] route: FIB... |
1610 1611 1612 1613 1614 1615 1616 |
struct fib6_config cfg = { .fc_table = RT6_TABLE_PREFIX, .fc_metric = IP6_RT_PRIO_ADDRCONF, .fc_ifindex = dev->ifindex, .fc_expires = expires, .fc_dst_len = plen, .fc_flags = RTF_UP | flags, |
c346dca10 [NET] NETNS: Omit... |
1617 |
.fc_nlinfo.nl_net = dev_net(dev), |
f410a1fba ipv6: protocol fo... |
1618 |
.fc_protocol = RTPROT_KERNEL, |
86872cb57 [IPv6] route: FIB... |
1619 |
}; |
1da177e4c Linux-2.6.12-rc2 |
1620 |
|
86872cb57 [IPv6] route: FIB... |
1621 |
ipv6_addr_copy(&cfg.fc_dst, pfx); |
1da177e4c Linux-2.6.12-rc2 |
1622 1623 1624 1625 1626 |
/* Prevent useless cloning on PtP SIT. This thing is done here expecting that the whole class of non-broadcast devices need not cloning. */ |
0be669bb3 [IPV6]: Seperate ... |
1627 |
#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE) |
86872cb57 [IPv6] route: FIB... |
1628 1629 |
if (dev->type == ARPHRD_SIT && (dev->flags & IFF_POINTOPOINT)) cfg.fc_flags |= RTF_NONEXTHOP; |
0be669bb3 [IPV6]: Seperate ... |
1630 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
1631 |
|
86872cb57 [IPv6] route: FIB... |
1632 |
ip6_route_add(&cfg); |
1da177e4c Linux-2.6.12-rc2 |
1633 1634 1635 1636 1637 1638 |
} /* Create "default" multicast route to the interface */ static void addrconf_add_mroute(struct net_device *dev) { |
86872cb57 [IPv6] route: FIB... |
1639 1640 1641 1642 1643 1644 |
struct fib6_config cfg = { .fc_table = RT6_TABLE_LOCAL, .fc_metric = IP6_RT_PRIO_ADDRCONF, .fc_ifindex = dev->ifindex, .fc_dst_len = 8, .fc_flags = RTF_UP, |
c346dca10 [NET] NETNS: Omit... |
1645 |
.fc_nlinfo.nl_net = dev_net(dev), |
86872cb57 [IPv6] route: FIB... |
1646 1647 1648 1649 1650 |
}; ipv6_addr_set(&cfg.fc_dst, htonl(0xFF000000), 0, 0, 0); ip6_route_add(&cfg); |
1da177e4c Linux-2.6.12-rc2 |
1651 |
} |
0be669bb3 [IPV6]: Seperate ... |
1652 |
#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE) |
1da177e4c Linux-2.6.12-rc2 |
1653 1654 |
static void sit_route_add(struct net_device *dev) { |
86872cb57 [IPv6] route: FIB... |
1655 1656 1657 1658 1659 1660 |
struct fib6_config cfg = { .fc_table = RT6_TABLE_MAIN, .fc_metric = IP6_RT_PRIO_ADDRCONF, .fc_ifindex = dev->ifindex, .fc_dst_len = 96, .fc_flags = RTF_UP | RTF_NONEXTHOP, |
c346dca10 [NET] NETNS: Omit... |
1661 |
.fc_nlinfo.nl_net = dev_net(dev), |
86872cb57 [IPv6] route: FIB... |
1662 |
}; |
1da177e4c Linux-2.6.12-rc2 |
1663 1664 |
/* prefix length - 96 bits "::d.d.d.d" */ |
86872cb57 [IPv6] route: FIB... |
1665 |
ip6_route_add(&cfg); |
1da177e4c Linux-2.6.12-rc2 |
1666 |
} |
0be669bb3 [IPV6]: Seperate ... |
1667 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 |
static void addrconf_add_lroute(struct net_device *dev) { struct in6_addr addr; ipv6_addr_set(&addr, htonl(0xFE800000), 0, 0, 0); addrconf_prefix_route(&addr, 64, dev, 0, 0); } static struct inet6_dev *addrconf_add_dev(struct net_device *dev) { struct inet6_dev *idev; ASSERT_RTNL(); if ((idev = ipv6_find_idev(dev)) == NULL) return NULL; /* Add default multicast route */ addrconf_add_mroute(dev); /* Add link local route */ addrconf_add_lroute(dev); return idev; } void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len) { struct prefix_info *pinfo; __u32 valid_lft; __u32 prefered_lft; int addr_type; |
1da177e4c Linux-2.6.12-rc2 |
1700 |
struct inet6_dev *in6_dev; |
56d417b12 IPv6: Add 'autoco... |
1701 |
struct net *net = dev_net(dev); |
1da177e4c Linux-2.6.12-rc2 |
1702 1703 |
pinfo = (struct prefix_info *) opt; |
1ab1457c4 [NET] IPV6: Fix w... |
1704 |
|
1da177e4c Linux-2.6.12-rc2 |
1705 1706 1707 1708 1709 |
if (len < sizeof(struct prefix_info)) { ADBG(("addrconf: prefix option too short ")); return; } |
1ab1457c4 [NET] IPV6: Fix w... |
1710 |
|
1da177e4c Linux-2.6.12-rc2 |
1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 |
/* * Validation checks ([ADDRCONF], page 19) */ addr_type = ipv6_addr_type(&pinfo->prefix); if (addr_type & (IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL)) return; valid_lft = ntohl(pinfo->valid); prefered_lft = ntohl(pinfo->prefered); if (prefered_lft > valid_lft) { if (net_ratelimit()) printk(KERN_WARNING "addrconf: prefix option has invalid lifetime "); return; } in6_dev = in6_dev_get(dev); if (in6_dev == NULL) { if (net_ratelimit()) printk(KERN_DEBUG "addrconf: device %s not configured ", dev->name); return; } /* * Two things going on here: * 1) Add routes for on-link prefixes * 2) Configure prefixes with the auto flag set */ |
4bed72e4f [IPV6] ADDRCONF: ... |
1744 1745 1746 |
if (pinfo->onlink) { struct rt6_info *rt; unsigned long rt_expires; |
6f704992d ipv6 addrconf: Al... |
1747 1748 1749 1750 1751 |
/* Avoid arithmetic overflow. Really, we could * save rt_expires in seconds, likely valid_lft, * but it would require division in fib gc, that it * not good. */ |
4bed72e4f [IPV6] ADDRCONF: ... |
1752 1753 1754 1755 |
if (HZ > USER_HZ) rt_expires = addrconf_timeout_fixup(valid_lft, HZ); else rt_expires = addrconf_timeout_fixup(valid_lft, USER_HZ); |
3dd4bc68f [IPV6]: Fix route... |
1756 |
|
4bed72e4f [IPV6] ADDRCONF: ... |
1757 1758 |
if (addrconf_finite_timeout(rt_expires)) rt_expires *= HZ; |
1da177e4c Linux-2.6.12-rc2 |
1759 |
|
56d417b12 IPv6: Add 'autoco... |
1760 |
rt = rt6_lookup(net, &pinfo->prefix, NULL, |
6fda73500 [NETNS][IPV6] add... |
1761 |
dev->ifindex, 1); |
1da177e4c Linux-2.6.12-rc2 |
1762 |
|
2b5ead464 ipv6 addrconf: In... |
1763 |
if (rt && addrconf_is_prefix_route(rt)) { |
6f704992d ipv6 addrconf: Al... |
1764 1765 1766 1767 |
/* Autoconf prefix route */ if (valid_lft == 0) { ip6_del_rt(rt); rt = NULL; |
4bed72e4f [IPV6] ADDRCONF: ... |
1768 |
} else if (addrconf_finite_timeout(rt_expires)) { |
6f704992d ipv6 addrconf: Al... |
1769 1770 1771 1772 1773 1774 |
/* not infinity */ rt->rt6i_expires = jiffies + rt_expires; rt->rt6i_flags |= RTF_EXPIRES; } else { rt->rt6i_flags &= ~RTF_EXPIRES; rt->rt6i_expires = 0; |
1da177e4c Linux-2.6.12-rc2 |
1775 1776 |
} } else if (valid_lft) { |
6f704992d ipv6 addrconf: Al... |
1777 |
clock_t expires = 0; |
4bed72e4f [IPV6] ADDRCONF: ... |
1778 1779 |
int flags = RTF_ADDRCONF | RTF_PREFIX_RT; if (addrconf_finite_timeout(rt_expires)) { |
6f704992d ipv6 addrconf: Al... |
1780 1781 1782 1783 |
/* not infinity */ flags |= RTF_EXPIRES; expires = jiffies_to_clock_t(rt_expires); } |
1da177e4c Linux-2.6.12-rc2 |
1784 |
addrconf_prefix_route(&pinfo->prefix, pinfo->prefix_len, |
6f704992d ipv6 addrconf: Al... |
1785 |
dev, expires, flags); |
1da177e4c Linux-2.6.12-rc2 |
1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 |
} if (rt) dst_release(&rt->u.dst); } /* Try to figure out our local address for this prefix */ if (pinfo->autoconf && in6_dev->cnf.autoconf) { struct inet6_ifaddr * ifp; struct in6_addr addr; int create = 0, update_lft = 0; if (pinfo->prefix_len == 64) { memcpy(&addr, &pinfo->prefix, 8); if (ipv6_generate_eui64(addr.s6_addr + 8, dev) && ipv6_inherit_eui64(addr.s6_addr + 8, in6_dev)) { in6_dev_put(in6_dev); return; } goto ok; } if (net_ratelimit()) printk(KERN_DEBUG "IPv6 addrconf: prefix with wrong length %d ", pinfo->prefix_len); in6_dev_put(in6_dev); return; ok: |
53b7997fd ipv6 netns: Make ... |
1815 |
ifp = ipv6_get_ifaddr(net, &addr, dev, 1); |
1da177e4c Linux-2.6.12-rc2 |
1816 1817 1818 |
if (ifp == NULL && valid_lft) { int max_addresses = in6_dev->cnf.max_addresses; |
95c385b4d [IPV6] ADDRCONF: ... |
1819 1820 1821 1822 |
u32 addr_flags = 0; #ifdef CONFIG_IPV6_OPTIMISTIC_DAD if (in6_dev->cnf.optimistic_dad && |
53b7997fd ipv6 netns: Make ... |
1823 |
!net->ipv6.devconf_all->forwarding) |
95c385b4d [IPV6] ADDRCONF: ... |
1824 1825 |
addr_flags = IFA_F_OPTIMISTIC; #endif |
1da177e4c Linux-2.6.12-rc2 |
1826 1827 1828 1829 1830 1831 1832 |
/* Do not allow to create too much of autoconfigured * addresses; this would be too easy way to crash kernel. */ if (!max_addresses || ipv6_count_addresses(in6_dev) < max_addresses) ifp = ipv6_add_addr(in6_dev, &addr, pinfo->prefix_len, |
95c385b4d [IPV6] ADDRCONF: ... |
1833 1834 |
addr_type&IPV6_ADDR_SCOPE_MASK, addr_flags); |
1da177e4c Linux-2.6.12-rc2 |
1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 |
if (!ifp || IS_ERR(ifp)) { in6_dev_put(in6_dev); return; } update_lft = create = 1; ifp->cstamp = jiffies; addrconf_dad_start(ifp, RTF_ADDRCONF|RTF_PREFIX_RT); } if (ifp) { int flags; unsigned long now; #ifdef CONFIG_IPV6_PRIVACY struct inet6_ifaddr *ift; #endif u32 stored_lft; /* update lifetime (RFC2462 5.5.3 e) */ spin_lock(&ifp->lock); now = jiffies; if (ifp->valid_lft > (now - ifp->tstamp) / HZ) stored_lft = ifp->valid_lft - (now - ifp->tstamp) / HZ; else stored_lft = 0; if (!update_lft && stored_lft) { if (valid_lft > MIN_VALID_LIFETIME || valid_lft > stored_lft) update_lft = 1; else if (stored_lft <= MIN_VALID_LIFETIME) { /* valid_lft <= stored_lft is always true */ |
a1ed05263 IPv6: preferred l... |
1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 |
/* * RFC 4862 Section 5.5.3e: * "Note that the preferred lifetime of * the corresponding address is always * reset to the Preferred Lifetime in * the received Prefix Information * option, regardless of whether the * valid lifetime is also reset or * ignored." * * So if the preferred lifetime in * this advertisement is different * than what we have stored, but the * valid lifetime is invalid, just * reset prefered_lft. * * We must set the valid lifetime * to the stored lifetime since we'll * be updating the timestamp below, * else we'll set it back to the * minumum. */ if (prefered_lft != ifp->prefered_lft) { valid_lft = stored_lft; update_lft = 1; } |
1da177e4c Linux-2.6.12-rc2 |
1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 |
} else { valid_lft = MIN_VALID_LIFETIME; if (valid_lft < prefered_lft) prefered_lft = valid_lft; update_lft = 1; } } if (update_lft) { ifp->valid_lft = valid_lft; ifp->prefered_lft = prefered_lft; ifp->tstamp = now; flags = ifp->flags; ifp->flags &= ~IFA_F_DEPRECATED; spin_unlock(&ifp->lock); if (!(flags&IFA_F_TENTATIVE)) ipv6_ifa_notify(0, ifp); } else spin_unlock(&ifp->lock); #ifdef CONFIG_IPV6_PRIVACY read_lock_bh(&in6_dev->lock); /* update all temporary addresses in the list */ for (ift=in6_dev->tempaddr_list; ift; ift=ift->tmp_next) { /* * When adjusting the lifetimes of an existing * temporary address, only lower the lifetimes. * Implementations must not increase the * lifetimes of an existing temporary address * when processing a Prefix Information Option. */ |
c6fbfac2e IPv6: only update... |
1925 1926 |
if (ifp != ift->ifpub) continue; |
1da177e4c Linux-2.6.12-rc2 |
1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 |
spin_lock(&ift->lock); flags = ift->flags; if (ift->valid_lft > valid_lft && ift->valid_lft - valid_lft > (jiffies - ift->tstamp) / HZ) ift->valid_lft = valid_lft + (jiffies - ift->tstamp) / HZ; if (ift->prefered_lft > prefered_lft && ift->prefered_lft - prefered_lft > (jiffies - ift->tstamp) / HZ) ift->prefered_lft = prefered_lft + (jiffies - ift->tstamp) / HZ; spin_unlock(&ift->lock); if (!(flags&IFA_F_TENTATIVE)) ipv6_ifa_notify(0, ift); } if (create && in6_dev->cnf.use_tempaddr > 0) { /* * When a new public address is created as described in [ADDRCONF], * also create a new temporary address. */ |
1ab1457c4 [NET] IPV6: Fix w... |
1945 |
read_unlock_bh(&in6_dev->lock); |
1da177e4c Linux-2.6.12-rc2 |
1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 |
ipv6_create_tempaddr(ifp, NULL); } else { read_unlock_bh(&in6_dev->lock); } #endif in6_ifa_put(ifp); addrconf_verify(0); } } inet6_prefix_notify(RTM_NEWPREFIX, in6_dev, pinfo); in6_dev_put(in6_dev); } /* * Set destination address. * Special case for SIT interfaces where we create a new "virtual" * device. */ |
af2849377 [NETNS][IPV6] add... |
1964 |
int addrconf_set_dstaddr(struct net *net, void __user *arg) |
1da177e4c Linux-2.6.12-rc2 |
1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 |
{ struct in6_ifreq ireq; struct net_device *dev; int err = -EINVAL; rtnl_lock(); err = -EFAULT; if (copy_from_user(&ireq, arg, sizeof(struct in6_ifreq))) goto err_exit; |
af2849377 [NETNS][IPV6] add... |
1975 |
dev = __dev_get_by_index(net, ireq.ifr6_ifindex); |
1da177e4c Linux-2.6.12-rc2 |
1976 1977 1978 1979 |
err = -ENODEV; if (dev == NULL) goto err_exit; |
0be669bb3 [IPV6]: Seperate ... |
1980 |
#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE) |
1da177e4c Linux-2.6.12-rc2 |
1981 |
if (dev->type == ARPHRD_SIT) { |
5bc3eb7e2 ip: convert to ne... |
1982 |
const struct net_device_ops *ops = dev->netdev_ops; |
1da177e4c Linux-2.6.12-rc2 |
1983 |
struct ifreq ifr; |
1da177e4c Linux-2.6.12-rc2 |
1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 |
struct ip_tunnel_parm p; err = -EADDRNOTAVAIL; if (!(ipv6_addr_type(&ireq.ifr6_addr) & IPV6_ADDR_COMPATv4)) goto err_exit; memset(&p, 0, sizeof(p)); p.iph.daddr = ireq.ifr6_addr.s6_addr32[3]; p.iph.saddr = 0; p.iph.version = 4; p.iph.ihl = 5; p.iph.protocol = IPPROTO_IPV6; p.iph.ttl = 64; |
d20b3109e [IPV6]: addrconf ... |
1997 |
ifr.ifr_ifru.ifru_data = (__force void __user *)&p; |
1da177e4c Linux-2.6.12-rc2 |
1998 |
|
5bc3eb7e2 ip: convert to ne... |
1999 2000 2001 2002 2003 2004 2005 2006 |
if (ops->ndo_do_ioctl) { mm_segment_t oldfs = get_fs(); set_fs(KERNEL_DS); err = ops->ndo_do_ioctl(dev, &ifr, SIOCADDTUNNEL); set_fs(oldfs); } else err = -EOPNOTSUPP; |
1da177e4c Linux-2.6.12-rc2 |
2007 2008 2009 |
if (err == 0) { err = -ENOBUFS; |
af2849377 [NETNS][IPV6] add... |
2010 2011 |
dev = __dev_get_by_name(net, p.name); if (!dev) |
1da177e4c Linux-2.6.12-rc2 |
2012 2013 2014 2015 |
goto err_exit; err = dev_open(dev); } } |
0be669bb3 [IPV6]: Seperate ... |
2016 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
2017 2018 2019 2020 2021 2022 2023 2024 2025 |
err_exit: rtnl_unlock(); return err; } /* * Manual configuration of address on an interface */ |
af2849377 [NETNS][IPV6] add... |
2026 |
static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx, |
24ef0da7b [IPV6] ADDRCONF: ... |
2027 |
unsigned int plen, __u8 ifa_flags, __u32 prefered_lft, |
af2849377 [NETNS][IPV6] add... |
2028 |
__u32 valid_lft) |
1da177e4c Linux-2.6.12-rc2 |
2029 2030 2031 2032 2033 |
{ struct inet6_ifaddr *ifp; struct inet6_dev *idev; struct net_device *dev; int scope; |
6f704992d ipv6 addrconf: Al... |
2034 2035 |
u32 flags; clock_t expires; |
4bed72e4f [IPV6] ADDRCONF: ... |
2036 |
unsigned long timeout; |
1da177e4c Linux-2.6.12-rc2 |
2037 2038 |
ASSERT_RTNL(); |
1ab1457c4 [NET] IPV6: Fix w... |
2039 |
|
24ef0da7b [IPV6] ADDRCONF: ... |
2040 2041 |
if (plen > 128) return -EINVAL; |
0778769d3 [IPV6] ADDRCONF: ... |
2042 2043 2044 |
/* check the lifetime */ if (!valid_lft || prefered_lft > valid_lft) return -EINVAL; |
af2849377 [NETNS][IPV6] add... |
2045 2046 |
dev = __dev_get_by_index(net, ifindex); if (!dev) |
1da177e4c Linux-2.6.12-rc2 |
2047 |
return -ENODEV; |
1ab1457c4 [NET] IPV6: Fix w... |
2048 |
|
1da177e4c Linux-2.6.12-rc2 |
2049 2050 2051 2052 |
if ((idev = addrconf_add_dev(dev)) == NULL) return -ENOBUFS; scope = ipv6_addr_scope(pfx); |
4bed72e4f [IPV6] ADDRCONF: ... |
2053 2054 2055 2056 |
timeout = addrconf_timeout_fixup(valid_lft, HZ); if (addrconf_finite_timeout(timeout)) { expires = jiffies_to_clock_t(timeout * HZ); valid_lft = timeout; |
6f704992d ipv6 addrconf: Al... |
2057 |
flags = RTF_EXPIRES; |
4bed72e4f [IPV6] ADDRCONF: ... |
2058 2059 2060 2061 |
} else { expires = 0; flags = 0; ifa_flags |= IFA_F_PERMANENT; |
6f704992d ipv6 addrconf: Al... |
2062 |
} |
0778769d3 [IPV6] ADDRCONF: ... |
2063 |
|
4bed72e4f [IPV6] ADDRCONF: ... |
2064 2065 2066 2067 2068 2069 |
timeout = addrconf_timeout_fixup(prefered_lft, HZ); if (addrconf_finite_timeout(timeout)) { if (timeout == 0) ifa_flags |= IFA_F_DEPRECATED; prefered_lft = timeout; } |
0778769d3 [IPV6] ADDRCONF: ... |
2070 2071 |
ifp = ipv6_add_addr(idev, pfx, plen, scope, ifa_flags); |
1da177e4c Linux-2.6.12-rc2 |
2072 |
if (!IS_ERR(ifp)) { |
06aebfb7f [IPV6]: The ifa l... |
2073 |
spin_lock_bh(&ifp->lock); |
0778769d3 [IPV6] ADDRCONF: ... |
2074 2075 2076 |
ifp->valid_lft = valid_lft; ifp->prefered_lft = prefered_lft; ifp->tstamp = jiffies; |
06aebfb7f [IPV6]: The ifa l... |
2077 |
spin_unlock_bh(&ifp->lock); |
0778769d3 [IPV6] ADDRCONF: ... |
2078 |
|
46d480468 [IPV6] ADDRCONF: ... |
2079 |
addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev, |
6f704992d ipv6 addrconf: Al... |
2080 |
expires, flags); |
95c385b4d [IPV6] ADDRCONF: ... |
2081 2082 2083 2084 2085 |
/* * Note that section 3.1 of RFC 4429 indicates * that the Optimistic flag should not be set for * manually configured addresses */ |
1da177e4c Linux-2.6.12-rc2 |
2086 2087 |
addrconf_dad_start(ifp, 0); in6_ifa_put(ifp); |
0778769d3 [IPV6] ADDRCONF: ... |
2088 |
addrconf_verify(0); |
1da177e4c Linux-2.6.12-rc2 |
2089 2090 2091 2092 2093 |
return 0; } return PTR_ERR(ifp); } |
af2849377 [NETNS][IPV6] add... |
2094 |
static int inet6_addr_del(struct net *net, int ifindex, struct in6_addr *pfx, |
24ef0da7b [IPV6] ADDRCONF: ... |
2095 |
unsigned int plen) |
1da177e4c Linux-2.6.12-rc2 |
2096 2097 2098 2099 |
{ struct inet6_ifaddr *ifp; struct inet6_dev *idev; struct net_device *dev; |
1ab1457c4 [NET] IPV6: Fix w... |
2100 |
|
24ef0da7b [IPV6] ADDRCONF: ... |
2101 2102 |
if (plen > 128) return -EINVAL; |
af2849377 [NETNS][IPV6] add... |
2103 2104 |
dev = __dev_get_by_index(net, ifindex); if (!dev) |
1da177e4c Linux-2.6.12-rc2 |
2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 |
return -ENODEV; if ((idev = __in6_dev_get(dev)) == NULL) return -ENXIO; read_lock_bh(&idev->lock); for (ifp = idev->addr_list; ifp; ifp=ifp->if_next) { if (ifp->prefix_len == plen && ipv6_addr_equal(pfx, &ifp->addr)) { in6_ifa_hold(ifp); read_unlock_bh(&idev->lock); |
1ab1457c4 [NET] IPV6: Fix w... |
2116 |
|
1da177e4c Linux-2.6.12-rc2 |
2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 |
ipv6_del_addr(ifp); /* If the last address is deleted administratively, disable IPv6 on this interface. */ if (idev->addr_list == NULL) addrconf_ifdown(idev->dev, 1); return 0; } } read_unlock_bh(&idev->lock); return -EADDRNOTAVAIL; } |
af2849377 [NETNS][IPV6] add... |
2130 |
int addrconf_add_ifaddr(struct net *net, void __user *arg) |
1da177e4c Linux-2.6.12-rc2 |
2131 2132 2133 |
{ struct in6_ifreq ireq; int err; |
1ab1457c4 [NET] IPV6: Fix w... |
2134 |
|
1da177e4c Linux-2.6.12-rc2 |
2135 2136 |
if (!capable(CAP_NET_ADMIN)) return -EPERM; |
1ab1457c4 [NET] IPV6: Fix w... |
2137 |
|
1da177e4c Linux-2.6.12-rc2 |
2138 2139 2140 2141 |
if (copy_from_user(&ireq, arg, sizeof(struct in6_ifreq))) return -EFAULT; rtnl_lock(); |
af2849377 [NETNS][IPV6] add... |
2142 2143 2144 |
err = inet6_addr_add(net, ireq.ifr6_ifindex, &ireq.ifr6_addr, ireq.ifr6_prefixlen, IFA_F_PERMANENT, INFINITY_LIFE_TIME, INFINITY_LIFE_TIME); |
1da177e4c Linux-2.6.12-rc2 |
2145 2146 2147 |
rtnl_unlock(); return err; } |
af2849377 [NETNS][IPV6] add... |
2148 |
int addrconf_del_ifaddr(struct net *net, void __user *arg) |
1da177e4c Linux-2.6.12-rc2 |
2149 2150 2151 |
{ struct in6_ifreq ireq; int err; |
1ab1457c4 [NET] IPV6: Fix w... |
2152 |
|
1da177e4c Linux-2.6.12-rc2 |
2153 2154 2155 2156 2157 2158 2159 |
if (!capable(CAP_NET_ADMIN)) return -EPERM; if (copy_from_user(&ireq, arg, sizeof(struct in6_ifreq))) return -EFAULT; rtnl_lock(); |
af2849377 [NETNS][IPV6] add... |
2160 2161 |
err = inet6_addr_del(net, ireq.ifr6_ifindex, &ireq.ifr6_addr, ireq.ifr6_prefixlen); |
1da177e4c Linux-2.6.12-rc2 |
2162 2163 2164 |
rtnl_unlock(); return err; } |
b5f348e5a ipv6/addrconf: co... |
2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 |
static void add_addr(struct inet6_dev *idev, const struct in6_addr *addr, int plen, int scope) { struct inet6_ifaddr *ifp; ifp = ipv6_add_addr(idev, addr, plen, scope, IFA_F_PERMANENT); if (!IS_ERR(ifp)) { spin_lock_bh(&ifp->lock); ifp->flags &= ~IFA_F_TENTATIVE; spin_unlock_bh(&ifp->lock); ipv6_ifa_notify(RTM_NEWADDR, ifp); in6_ifa_put(ifp); } } |
0be669bb3 [IPV6]: Seperate ... |
2179 |
#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE) |
1da177e4c Linux-2.6.12-rc2 |
2180 2181 |
static void sit_add_v4_addrs(struct inet6_dev *idev) { |
1da177e4c Linux-2.6.12-rc2 |
2182 2183 |
struct in6_addr addr; struct net_device *dev; |
c346dca10 [NET] NETNS: Omit... |
2184 |
struct net *net = dev_net(idev->dev); |
1da177e4c Linux-2.6.12-rc2 |
2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 |
int scope; ASSERT_RTNL(); memset(&addr, 0, sizeof(struct in6_addr)); memcpy(&addr.s6_addr32[3], idev->dev->dev_addr, 4); if (idev->dev->flags&IFF_POINTOPOINT) { addr.s6_addr32[0] = htonl(0xfe800000); scope = IFA_LINK; } else { scope = IPV6_ADDR_COMPATv4; } if (addr.s6_addr32[3]) { |
b5f348e5a ipv6/addrconf: co... |
2200 |
add_addr(idev, &addr, 128, scope); |
1da177e4c Linux-2.6.12-rc2 |
2201 2202 |
return; } |
6fda73500 [NETNS][IPV6] add... |
2203 |
for_each_netdev(net, dev) { |
e5ed63991 [IPV4]: Replace _... |
2204 |
struct in_device * in_dev = __in_dev_get_rtnl(dev); |
1da177e4c Linux-2.6.12-rc2 |
2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 |
if (in_dev && (dev->flags & IFF_UP)) { struct in_ifaddr * ifa; int flag = scope; for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { int plen; addr.s6_addr32[3] = ifa->ifa_local; if (ifa->ifa_scope == RT_SCOPE_LINK) continue; if (ifa->ifa_scope >= RT_SCOPE_HOST) { if (idev->dev->flags&IFF_POINTOPOINT) continue; flag |= IFA_HOST; } if (idev->dev->flags&IFF_POINTOPOINT) plen = 64; else plen = 96; |
b5f348e5a ipv6/addrconf: co... |
2226 |
add_addr(idev, &addr, plen, flag); |
1da177e4c Linux-2.6.12-rc2 |
2227 2228 |
} } |
1ab1457c4 [NET] IPV6: Fix w... |
2229 |
} |
1da177e4c Linux-2.6.12-rc2 |
2230 |
} |
0be669bb3 [IPV6]: Seperate ... |
2231 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
2232 2233 2234 2235 |
static void init_loopback(struct net_device *dev) { struct inet6_dev *idev; |
1da177e4c Linux-2.6.12-rc2 |
2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 |
/* ::1 */ ASSERT_RTNL(); if ((idev = ipv6_find_idev(dev)) == NULL) { printk(KERN_DEBUG "init loopback: add_dev failed "); return; } |
b5f348e5a ipv6/addrconf: co... |
2246 |
add_addr(idev, &in6addr_loopback, 128, IFA_HOST); |
1da177e4c Linux-2.6.12-rc2 |
2247 2248 2249 2250 2251 |
} static void addrconf_add_linklocal(struct inet6_dev *idev, struct in6_addr *addr) { struct inet6_ifaddr * ifp; |
95c385b4d [IPV6] ADDRCONF: ... |
2252 2253 2254 2255 |
u32 addr_flags = IFA_F_PERMANENT; #ifdef CONFIG_IPV6_OPTIMISTIC_DAD if (idev->cnf.optimistic_dad && |
702beb87d ipv6: Fix warning... |
2256 |
!dev_net(idev->dev)->ipv6.devconf_all->forwarding) |
95c385b4d [IPV6] ADDRCONF: ... |
2257 2258 |
addr_flags |= IFA_F_OPTIMISTIC; #endif |
1da177e4c Linux-2.6.12-rc2 |
2259 |
|
95c385b4d [IPV6] ADDRCONF: ... |
2260 2261 |
ifp = ipv6_add_addr(idev, addr, 64, IFA_LINK, addr_flags); |
1da177e4c Linux-2.6.12-rc2 |
2262 |
if (!IS_ERR(ifp)) { |
46d480468 [IPV6] ADDRCONF: ... |
2263 |
addrconf_prefix_route(&ifp->addr, ifp->prefix_len, idev->dev, 0, 0); |
1da177e4c Linux-2.6.12-rc2 |
2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 |
addrconf_dad_start(ifp, 0); in6_ifa_put(ifp); } } static void addrconf_dev_config(struct net_device *dev) { struct in6_addr addr; struct inet6_dev * idev; ASSERT_RTNL(); |
74235a25c [IPV6] addrconf: ... |
2275 2276 2277 2278 2279 2280 2281 2282 |
if ((dev->type != ARPHRD_ETHER) && (dev->type != ARPHRD_FDDI) && (dev->type != ARPHRD_IEEE802_TR) && (dev->type != ARPHRD_ARCNET) && (dev->type != ARPHRD_INFINIBAND)) { /* Alas, we support only Ethernet autoconfiguration. */ return; } |
1da177e4c Linux-2.6.12-rc2 |
2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 |
idev = addrconf_add_dev(dev); if (idev == NULL) return; memset(&addr, 0, sizeof(struct in6_addr)); addr.s6_addr32[0] = htonl(0xFE800000); if (ipv6_generate_eui64(addr.s6_addr + 8, dev) == 0) addrconf_add_linklocal(idev, &addr); } |
0be669bb3 [IPV6]: Seperate ... |
2293 |
#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE) |
1da177e4c Linux-2.6.12-rc2 |
2294 2295 2296 2297 2298 |
static void addrconf_sit_config(struct net_device *dev) { struct inet6_dev *idev; ASSERT_RTNL(); |
1ab1457c4 [NET] IPV6: Fix w... |
2299 2300 2301 |
/* * Configure the tunnel with one of our IPv4 * addresses... we should configure all of |
1da177e4c Linux-2.6.12-rc2 |
2302 2303 2304 2305 2306 2307 2308 2309 |
* our v4 addrs in the tunnel */ if ((idev = ipv6_find_idev(dev)) == NULL) { printk(KERN_DEBUG "init sit: add_dev failed "); return; } |
c7dc89c0a [IPV6]: Add RFC42... |
2310 2311 2312 2313 2314 2315 2316 2317 2318 |
if (dev->priv_flags & IFF_ISATAP) { struct in6_addr addr; ipv6_addr_set(&addr, htonl(0xFE800000), 0, 0, 0); addrconf_prefix_route(&addr, 64, dev, 0, 0); if (!ipv6_generate_eui64(addr.s6_addr + 8, dev)) addrconf_add_linklocal(idev, &addr); return; } |
1da177e4c Linux-2.6.12-rc2 |
2319 2320 2321 2322 2323 2324 2325 2326 |
sit_add_v4_addrs(idev); if (dev->flags&IFF_POINTOPOINT) { addrconf_add_mroute(dev); addrconf_add_lroute(dev); } else sit_route_add(dev); } |
0be669bb3 [IPV6]: Seperate ... |
2327 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
2328 2329 2330 2331 2332 |
static inline int ipv6_inherit_linklocal(struct inet6_dev *idev, struct net_device *link_dev) { struct in6_addr lladdr; |
95c385b4d [IPV6] ADDRCONF: ... |
2333 |
if (!ipv6_get_lladdr(link_dev, &lladdr, IFA_F_TENTATIVE)) { |
1da177e4c Linux-2.6.12-rc2 |
2334 2335 2336 2337 2338 2339 2340 2341 2342 |
addrconf_add_linklocal(idev, &lladdr); return 0; } return -1; } static void ip6_tnl_add_linklocal(struct inet6_dev *idev) { struct net_device *link_dev; |
c346dca10 [NET] NETNS: Omit... |
2343 |
struct net *net = dev_net(idev->dev); |
1da177e4c Linux-2.6.12-rc2 |
2344 2345 2346 |
/* first try to inherit the link-local address from the link device */ if (idev->dev->iflink && |
6fda73500 [NETNS][IPV6] add... |
2347 |
(link_dev = __dev_get_by_index(net, idev->dev->iflink))) { |
1da177e4c Linux-2.6.12-rc2 |
2348 2349 2350 2351 |
if (!ipv6_inherit_linklocal(idev, link_dev)) return; } /* then try to inherit it from any device */ |
6fda73500 [NETNS][IPV6] add... |
2352 |
for_each_netdev(net, link_dev) { |
1da177e4c Linux-2.6.12-rc2 |
2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 |
if (!ipv6_inherit_linklocal(idev, link_dev)) return; } printk(KERN_DEBUG "init ip6-ip6: add_linklocal failed "); } /* * Autoconfigure tunnel with a link-local address so routing protocols, * DHCPv6, MLD etc. can be run over the virtual link */ static void addrconf_ip6_tnl_config(struct net_device *dev) { struct inet6_dev *idev; ASSERT_RTNL(); if ((idev = addrconf_add_dev(dev)) == NULL) { printk(KERN_DEBUG "init ip6-ip6: add_dev failed "); return; } ip6_tnl_add_linklocal(idev); |
1da177e4c Linux-2.6.12-rc2 |
2377 |
} |
1ab1457c4 [NET] IPV6: Fix w... |
2378 |
static int addrconf_notify(struct notifier_block *this, unsigned long event, |
1da177e4c Linux-2.6.12-rc2 |
2379 2380 2381 |
void * data) { struct net_device *dev = (struct net_device *) data; |
74235a25c [IPV6] addrconf: ... |
2382 |
struct inet6_dev *idev = __in6_dev_get(dev); |
c5e33bddd [IPV6]: Run DAD w... |
2383 |
int run_pending = 0; |
b217d616a [IPV4/IPV6]: Fail... |
2384 |
int err; |
1da177e4c Linux-2.6.12-rc2 |
2385 2386 |
switch(event) { |
45ba9dd20 [IPV6] ADDRCONF: ... |
2387 |
case NETDEV_REGISTER: |
74235a25c [IPV6] addrconf: ... |
2388 |
if (!idev && dev->mtu >= IPV6_MIN_MTU) { |
45ba9dd20 [IPV6] ADDRCONF: ... |
2389 2390 |
idev = ipv6_add_dev(dev); if (!idev) |
b217d616a [IPV4/IPV6]: Fail... |
2391 |
return notifier_from_errno(-ENOMEM); |
45ba9dd20 [IPV6] ADDRCONF: ... |
2392 2393 |
} break; |
1da177e4c Linux-2.6.12-rc2 |
2394 |
case NETDEV_UP: |
3c21edbd1 [IPV6]: Defer IPv... |
2395 |
case NETDEV_CHANGE: |
c2edacf80 bonding / ipv6: n... |
2396 2397 |
if (dev->flags & IFF_SLAVE) break; |
3c21edbd1 [IPV6]: Defer IPv... |
2398 |
if (event == NETDEV_UP) { |
f24e3d658 [IPV6]: Defer IPv... |
2399 |
if (!addrconf_qdisc_ok(dev)) { |
3c21edbd1 [IPV6]: Defer IPv... |
2400 2401 2402 2403 2404 2405 2406 2407 |
/* device is not ready yet. */ printk(KERN_INFO "ADDRCONF(NETDEV_UP): %s: " "link is not ready ", dev->name); break; } |
990810493 [IPV6]: Address a... |
2408 |
|
d31c7b8fa [IPV6]: Restore I... |
2409 2410 |
if (!idev && dev->mtu >= IPV6_MIN_MTU) idev = ipv6_add_dev(dev); |
e3ec6cfc2 ipv6: fix run pen... |
2411 |
if (idev) { |
990810493 [IPV6]: Address a... |
2412 |
idev->if_flags |= IF_READY; |
e3ec6cfc2 ipv6: fix run pen... |
2413 2414 |
run_pending = 1; } |
3c21edbd1 [IPV6]: Defer IPv... |
2415 |
} else { |
f24e3d658 [IPV6]: Defer IPv... |
2416 |
if (!addrconf_qdisc_ok(dev)) { |
3c21edbd1 [IPV6]: Defer IPv... |
2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 |
/* device is still not ready. */ break; } if (idev) { if (idev->if_flags & IF_READY) { /* device is already configured. */ break; } idev->if_flags |= IF_READY; } printk(KERN_INFO "ADDRCONF(NETDEV_CHANGE): %s: " "link becomes ready ", dev->name); |
c5e33bddd [IPV6]: Run DAD w... |
2434 |
run_pending = 1; |
3c21edbd1 [IPV6]: Defer IPv... |
2435 |
} |
1da177e4c Linux-2.6.12-rc2 |
2436 |
switch(dev->type) { |
0be669bb3 [IPV6]: Seperate ... |
2437 |
#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE) |
1da177e4c Linux-2.6.12-rc2 |
2438 2439 2440 |
case ARPHRD_SIT: addrconf_sit_config(dev); break; |
0be669bb3 [IPV6]: Seperate ... |
2441 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 |
case ARPHRD_TUNNEL6: addrconf_ip6_tnl_config(dev); break; case ARPHRD_LOOPBACK: init_loopback(dev); break; default: addrconf_dev_config(dev); break; |
3ff50b799 [NET]: cleanup ex... |
2452 |
} |
1da177e4c Linux-2.6.12-rc2 |
2453 |
if (idev) { |
c5e33bddd [IPV6]: Run DAD w... |
2454 2455 |
if (run_pending) addrconf_dad_run(idev); |
1da177e4c Linux-2.6.12-rc2 |
2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 |
/* If the MTU changed during the interface down, when the interface up, the changed MTU must be reflected in the idev as well as routers. */ if (idev->cnf.mtu6 != dev->mtu && dev->mtu >= IPV6_MIN_MTU) { rt6_mtu_change(dev, dev->mtu); idev->cnf.mtu6 = dev->mtu; } idev->tstamp = jiffies; inet6_ifinfo_notify(RTM_NEWLINK, idev); /* If the changed mtu during down is lower than IPV6_MIN_MTU stop IPv6 on this interface. */ if (dev->mtu < IPV6_MIN_MTU) addrconf_ifdown(dev, event != NETDEV_DOWN); } break; case NETDEV_CHANGEMTU: |
d31c7b8fa [IPV6]: Restore I... |
2475 |
if (idev && dev->mtu >= IPV6_MIN_MTU) { |
1da177e4c Linux-2.6.12-rc2 |
2476 2477 2478 2479 |
rt6_mtu_change(dev, dev->mtu); idev->cnf.mtu6 = dev->mtu; break; } |
d31c7b8fa [IPV6]: Restore I... |
2480 2481 2482 2483 2484 |
if (!idev && dev->mtu >= IPV6_MIN_MTU) { idev = ipv6_add_dev(dev); if (idev) break; } |
1da177e4c Linux-2.6.12-rc2 |
2485 2486 2487 2488 2489 2490 2491 2492 2493 |
/* MTU falled under IPV6_MIN_MTU. Stop IPv6 on this interface. */ case NETDEV_DOWN: case NETDEV_UNREGISTER: /* * Remove all addresses from this interface. */ addrconf_ifdown(dev, event != NETDEV_DOWN); break; |
3c21edbd1 [IPV6]: Defer IPv... |
2494 |
|
1da177e4c Linux-2.6.12-rc2 |
2495 |
case NETDEV_CHANGENAME: |
1da177e4c Linux-2.6.12-rc2 |
2496 |
if (idev) { |
5632c5152 [IPV6]: Track dev... |
2497 |
snmp6_unregister_dev(idev); |
408c4768c [NETNS]: Clean ou... |
2498 |
addrconf_sysctl_unregister(idev); |
f52295a9c [IPV6]: Unify and... |
2499 |
addrconf_sysctl_register(idev); |
b217d616a [IPV4/IPV6]: Fail... |
2500 2501 2502 |
err = snmp6_register_dev(idev); if (err) return notifier_from_errno(err); |
5632c5152 [IPV6]: Track dev... |
2503 |
} |
1da177e4c Linux-2.6.12-rc2 |
2504 |
break; |
3ff50b799 [NET]: cleanup ex... |
2505 |
} |
1da177e4c Linux-2.6.12-rc2 |
2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 |
return NOTIFY_OK; } /* * addrconf module should be notified of a device going up */ static struct notifier_block ipv6_dev_notf = { .notifier_call = addrconf_notify, .priority = 0 }; static int addrconf_ifdown(struct net_device *dev, int how) { struct inet6_dev *idev; struct inet6_ifaddr *ifa, **bifa; |
c346dca10 [NET] NETNS: Omit... |
2522 |
struct net *net = dev_net(dev); |
1da177e4c Linux-2.6.12-rc2 |
2523 2524 2525 |
int i; ASSERT_RTNL(); |
f3db48517 [NETNS][IPV6] ip6... |
2526 |
rt6_ifdown(net, dev); |
1da177e4c Linux-2.6.12-rc2 |
2527 2528 2529 2530 2531 2532 2533 |
neigh_ifdown(&nd_tbl, dev); idev = __in6_dev_get(dev); if (idev == NULL) return -ENODEV; /* Step 1: remove reference to ipv6 device from parent device. |
1ab1457c4 [NET] IPV6: Fix w... |
2534 |
Do not dev_put! |
1da177e4c Linux-2.6.12-rc2 |
2535 |
*/ |
439e23857 [IPV6]: Event typ... |
2536 |
if (how) { |
1da177e4c Linux-2.6.12-rc2 |
2537 |
idev->dead = 1; |
8814c4b53 [IPV6] ADDRCONF: ... |
2538 2539 2540 |
/* protected by rtnl_lock */ rcu_assign_pointer(dev->ip6_ptr, NULL); |
1da177e4c Linux-2.6.12-rc2 |
2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 |
/* Step 1.5: remove snmp6 entry */ snmp6_unregister_dev(idev); } /* Step 2: clear hash table */ for (i=0; i<IN6_ADDR_HSIZE; i++) { bifa = &inet6_addr_lst[i]; write_lock_bh(&addrconf_hash_lock); while ((ifa = *bifa) != NULL) { if (ifa->idev == idev) { *bifa = ifa->lst_next; ifa->lst_next = NULL; addrconf_del_timer(ifa); in6_ifa_put(ifa); continue; } bifa = &ifa->lst_next; } write_unlock_bh(&addrconf_hash_lock); } write_lock_bh(&idev->lock); /* Step 3: clear flags for stateless addrconf */ |
439e23857 [IPV6]: Event typ... |
2568 |
if (!how) |
3c21edbd1 [IPV6]: Defer IPv... |
2569 |
idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY); |
1da177e4c Linux-2.6.12-rc2 |
2570 2571 2572 |
/* Step 4: clear address list */ #ifdef CONFIG_IPV6_PRIVACY |
439e23857 [IPV6]: Event typ... |
2573 |
if (how && del_timer(&idev->regen_timer)) |
1da177e4c Linux-2.6.12-rc2 |
2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 |
in6_dev_put(idev); /* clear tempaddr list */ while ((ifa = idev->tempaddr_list) != NULL) { idev->tempaddr_list = ifa->tmp_next; ifa->tmp_next = NULL; ifa->dead = 1; write_unlock_bh(&idev->lock); spin_lock_bh(&ifa->lock); if (ifa->ifpub) { in6_ifa_put(ifa->ifpub); ifa->ifpub = NULL; } spin_unlock_bh(&ifa->lock); in6_ifa_put(ifa); write_lock_bh(&idev->lock); } #endif while ((ifa = idev->addr_list) != NULL) { idev->addr_list = ifa->if_next; ifa->if_next = NULL; ifa->dead = 1; addrconf_del_timer(ifa); write_unlock_bh(&idev->lock); __ipv6_ifa_notify(RTM_DELADDR, ifa); |
063ed369c [IPV6]: Call inet... |
2601 |
atomic_notifier_call_chain(&inet6addr_chain, NETDEV_DOWN, ifa); |
1da177e4c Linux-2.6.12-rc2 |
2602 2603 2604 2605 2606 2607 2608 |
in6_ifa_put(ifa); write_lock_bh(&idev->lock); } write_unlock_bh(&idev->lock); /* Step 5: Discard multicast list */ |
439e23857 [IPV6]: Event typ... |
2609 |
if (how) |
1da177e4c Linux-2.6.12-rc2 |
2610 2611 2612 |
ipv6_mc_destroy_dev(idev); else ipv6_mc_down(idev); |
1da177e4c Linux-2.6.12-rc2 |
2613 |
idev->tstamp = jiffies; |
1ab1457c4 [NET] IPV6: Fix w... |
2614 |
|
1da177e4c Linux-2.6.12-rc2 |
2615 |
/* Shot the device (if unregistered) */ |
439e23857 [IPV6]: Event typ... |
2616 |
if (how) { |
408c4768c [NETNS]: Clean ou... |
2617 |
addrconf_sysctl_unregister(idev); |
1da177e4c Linux-2.6.12-rc2 |
2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 |
neigh_parms_release(&nd_tbl, idev->nd_parms); neigh_ifdown(&nd_tbl, dev); in6_dev_put(idev); } return 0; } static void addrconf_rs_timer(unsigned long data) { struct inet6_ifaddr *ifp = (struct inet6_ifaddr *) data; if (ifp->idev->cnf.forwarding) goto out; if (ifp->idev->if_flags & IF_RA_RCVD) { /* * Announcement received after solicitation * was sent */ goto out; } spin_lock(&ifp->lock); if (ifp->probes++ < ifp->idev->cnf.rtr_solicits) { |
1da177e4c Linux-2.6.12-rc2 |
2642 2643 2644 2645 2646 2647 |
/* The wait after the last probe can be shorter */ addrconf_mod_timer(ifp, AC_RS, (ifp->probes == ifp->idev->cnf.rtr_solicits) ? ifp->idev->cnf.rtr_solicit_delay : ifp->idev->cnf.rtr_solicit_interval); spin_unlock(&ifp->lock); |
f3ee4010e [IPV6]: Define co... |
2648 |
ndisc_send_rs(ifp->idev->dev, &ifp->addr, &in6addr_linklocal_allrouters); |
1da177e4c Linux-2.6.12-rc2 |
2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 |
} else { spin_unlock(&ifp->lock); /* * Note: we do not support deprecated "all on-link" * assumption any longer. */ printk(KERN_DEBUG "%s: no IPv6 routers present ", ifp->idev->dev->name); } out: in6_ifa_put(ifp); } /* * Duplicate Address Detection */ |
3c21edbd1 [IPV6]: Defer IPv... |
2667 2668 2669 2670 |
static void addrconf_dad_kick(struct inet6_ifaddr *ifp) { unsigned long rand_num; struct inet6_dev *idev = ifp->idev; |
95c385b4d [IPV6] ADDRCONF: ... |
2671 2672 2673 2674 |
if (ifp->flags & IFA_F_OPTIMISTIC) rand_num = 0; else rand_num = net_random() % (idev->cnf.rtr_solicit_delay ? : 1); |
3c21edbd1 [IPV6]: Defer IPv... |
2675 2676 2677 |
ifp->probes = idev->cnf.dad_transmits; addrconf_mod_timer(ifp, AC_DAD, rand_num); } |
e431b8c00 [NETLINK]: Explic... |
2678 |
static void addrconf_dad_start(struct inet6_ifaddr *ifp, u32 flags) |
1da177e4c Linux-2.6.12-rc2 |
2679 2680 2681 |
{ struct inet6_dev *idev = ifp->idev; struct net_device *dev = idev->dev; |
1da177e4c Linux-2.6.12-rc2 |
2682 2683 |
addrconf_join_solict(dev, &ifp->addr); |
1da177e4c Linux-2.6.12-rc2 |
2684 |
net_srandom(ifp->addr.s6_addr32[3]); |
1da177e4c Linux-2.6.12-rc2 |
2685 2686 2687 2688 2689 2690 2691 |
read_lock_bh(&idev->lock); if (ifp->dead) goto out; spin_lock_bh(&ifp->lock); if (dev->flags&(IFF_NOARP|IFF_LOOPBACK) || |
1b34be74c ipv6 addrconf: ad... |
2692 |
idev->cnf.accept_dad < 1 || |
55ebaef1d [IPV6] ADDRCONF: ... |
2693 2694 |
!(ifp->flags&IFA_F_TENTATIVE) || ifp->flags & IFA_F_NODAD) { |
95c385b4d [IPV6] ADDRCONF: ... |
2695 |
ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC); |
1da177e4c Linux-2.6.12-rc2 |
2696 2697 2698 2699 2700 2701 |
spin_unlock_bh(&ifp->lock); read_unlock_bh(&idev->lock); addrconf_dad_completed(ifp); return; } |
6732badee [IPV6]: Fix addrc... |
2702 |
if (!(idev->if_flags & IF_READY)) { |
3dd3bf835 [IPV6]: Fix dead ... |
2703 |
spin_unlock_bh(&ifp->lock); |
6732badee [IPV6]: Fix addrc... |
2704 |
read_unlock_bh(&idev->lock); |
3c21edbd1 [IPV6]: Defer IPv... |
2705 |
/* |
590a9887a trivial: Fix a ty... |
2706 |
* If the device is not ready: |
3c21edbd1 [IPV6]: Defer IPv... |
2707 2708 2709 2710 2711 |
* - keep it tentative if it is a permanent address. * - otherwise, kill it. */ in6_ifa_hold(ifp); addrconf_dad_stop(ifp); |
6732badee [IPV6]: Fix addrc... |
2712 |
return; |
3c21edbd1 [IPV6]: Defer IPv... |
2713 |
} |
95c385b4d [IPV6] ADDRCONF: ... |
2714 2715 2716 2717 2718 2719 2720 |
/* * Optimistic nodes can start receiving * Frames right away */ if(ifp->flags & IFA_F_OPTIMISTIC) ip6_ins_rt(ifp->rt); |
6732badee [IPV6]: Fix addrc... |
2721 2722 |
addrconf_dad_kick(ifp); spin_unlock_bh(&ifp->lock); |
1da177e4c Linux-2.6.12-rc2 |
2723 2724 2725 2726 2727 2728 2729 2730 |
out: read_unlock_bh(&idev->lock); } static void addrconf_dad_timer(unsigned long data) { struct inet6_ifaddr *ifp = (struct inet6_ifaddr *) data; struct inet6_dev *idev = ifp->idev; |
1da177e4c Linux-2.6.12-rc2 |
2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 |
struct in6_addr mcaddr; read_lock_bh(&idev->lock); if (idev->dead) { read_unlock_bh(&idev->lock); goto out; } spin_lock_bh(&ifp->lock); if (ifp->probes == 0) { /* * DAD was successful */ |
95c385b4d [IPV6] ADDRCONF: ... |
2743 |
ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC); |
1da177e4c Linux-2.6.12-rc2 |
2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 |
spin_unlock_bh(&ifp->lock); read_unlock_bh(&idev->lock); addrconf_dad_completed(ifp); goto out; } ifp->probes--; addrconf_mod_timer(ifp, AC_DAD, ifp->idev->nd_parms->retrans_time); spin_unlock_bh(&ifp->lock); read_unlock_bh(&idev->lock); /* send a neighbour solicitation for our addr */ |
1da177e4c Linux-2.6.12-rc2 |
2758 |
addrconf_addr_solict_mult(&ifp->addr, &mcaddr); |
d7aabf22e [IPV6]: Use in6ad... |
2759 |
ndisc_send_ns(ifp->idev->dev, NULL, &ifp->addr, &mcaddr, &in6addr_any); |
1da177e4c Linux-2.6.12-rc2 |
2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 |
out: in6_ifa_put(ifp); } static void addrconf_dad_completed(struct inet6_ifaddr *ifp) { struct net_device * dev = ifp->idev->dev; /* * Configure the address for reception. Now it is valid. */ ipv6_ifa_notify(RTM_NEWADDR, ifp); /* If added prefix is link local and forwarding is off, start sending router solicitations. */ if (ifp->idev->cnf.forwarding == 0 && ifp->idev->cnf.rtr_solicits > 0 && (dev->flags&IFF_LOOPBACK) == 0 && (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) { |
1da177e4c Linux-2.6.12-rc2 |
2782 2783 2784 2785 2786 |
/* * If a host as already performed a random delay * [...] as part of DAD [...] there is no need * to delay again before sending the first RS */ |
f3ee4010e [IPV6]: Define co... |
2787 |
ndisc_send_rs(ifp->idev->dev, &ifp->addr, &in6addr_linklocal_allrouters); |
1da177e4c Linux-2.6.12-rc2 |
2788 2789 2790 2791 2792 2793 2794 2795 |
spin_lock_bh(&ifp->lock); ifp->probes = 1; ifp->idev->if_flags |= IF_RS_SENT; addrconf_mod_timer(ifp, AC_RS, ifp->idev->cnf.rtr_solicit_interval); spin_unlock_bh(&ifp->lock); } } |
c5e33bddd [IPV6]: Run DAD w... |
2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 |
static void addrconf_dad_run(struct inet6_dev *idev) { struct inet6_ifaddr *ifp; read_lock_bh(&idev->lock); for (ifp = idev->addr_list; ifp; ifp = ifp->if_next) { spin_lock_bh(&ifp->lock); if (!(ifp->flags & IFA_F_TENTATIVE)) { spin_unlock_bh(&ifp->lock); continue; } spin_unlock_bh(&ifp->lock); addrconf_dad_kick(ifp); } read_unlock_bh(&idev->lock); } |
1da177e4c Linux-2.6.12-rc2 |
2811 2812 |
#ifdef CONFIG_PROC_FS struct if6_iter_state { |
3c40090a0 [NETNS][IPV6]: in... |
2813 |
struct seq_net_private p; |
1da177e4c Linux-2.6.12-rc2 |
2814 2815 2816 2817 2818 2819 2820 |
int bucket; }; static struct inet6_ifaddr *if6_get_first(struct seq_file *seq) { struct inet6_ifaddr *ifa = NULL; struct if6_iter_state *state = seq->private; |
1218854af [NET] NETNS: Omit... |
2821 |
struct net *net = seq_file_net(seq); |
1da177e4c Linux-2.6.12-rc2 |
2822 2823 2824 |
for (state->bucket = 0; state->bucket < IN6_ADDR_HSIZE; ++state->bucket) { ifa = inet6_addr_lst[state->bucket]; |
3c40090a0 [NETNS][IPV6]: in... |
2825 |
|
878628fbf [NET] NETNS: Omit... |
2826 |
while (ifa && !net_eq(dev_net(ifa->idev->dev), net)) |
3c40090a0 [NETNS][IPV6]: in... |
2827 |
ifa = ifa->lst_next; |
1da177e4c Linux-2.6.12-rc2 |
2828 2829 2830 2831 2832 2833 2834 2835 2836 |
if (ifa) break; } return ifa; } static struct inet6_ifaddr *if6_get_next(struct seq_file *seq, struct inet6_ifaddr *ifa) { struct if6_iter_state *state = seq->private; |
1218854af [NET] NETNS: Omit... |
2837 |
struct net *net = seq_file_net(seq); |
1da177e4c Linux-2.6.12-rc2 |
2838 2839 2840 |
ifa = ifa->lst_next; try_again: |
3c40090a0 [NETNS][IPV6]: in... |
2841 |
if (ifa) { |
878628fbf [NET] NETNS: Omit... |
2842 |
if (!net_eq(dev_net(ifa->idev->dev), net)) { |
3c40090a0 [NETNS][IPV6]: in... |
2843 2844 2845 2846 |
ifa = ifa->lst_next; goto try_again; } } |
1da177e4c Linux-2.6.12-rc2 |
2847 2848 2849 2850 |
if (!ifa && ++state->bucket < IN6_ADDR_HSIZE) { ifa = inet6_addr_lst[state->bucket]; goto try_again; } |
3c40090a0 [NETNS][IPV6]: in... |
2851 |
|
1da177e4c Linux-2.6.12-rc2 |
2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 |
return ifa; } static struct inet6_ifaddr *if6_get_idx(struct seq_file *seq, loff_t pos) { struct inet6_ifaddr *ifa = if6_get_first(seq); if (ifa) while(pos && (ifa = if6_get_next(seq, ifa)) != NULL) --pos; return pos ? NULL : ifa; } static void *if6_seq_start(struct seq_file *seq, loff_t *pos) |
d20b3109e [IPV6]: addrconf ... |
2866 |
__acquires(addrconf_hash_lock) |
1da177e4c Linux-2.6.12-rc2 |
2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 |
{ read_lock_bh(&addrconf_hash_lock); return if6_get_idx(seq, *pos); } static void *if6_seq_next(struct seq_file *seq, void *v, loff_t *pos) { struct inet6_ifaddr *ifa; ifa = if6_get_next(seq, v); ++*pos; return ifa; } static void if6_seq_stop(struct seq_file *seq, void *v) |
d20b3109e [IPV6]: addrconf ... |
2882 |
__releases(addrconf_hash_lock) |
1da177e4c Linux-2.6.12-rc2 |
2883 2884 2885 2886 2887 2888 2889 |
{ read_unlock_bh(&addrconf_hash_lock); } static int if6_seq_show(struct seq_file *seq, void *v) { struct inet6_ifaddr *ifp = (struct inet6_ifaddr *)v; |
4b7a4274c net: replace %#p6... |
2890 2891 |
seq_printf(seq, "%pi6 %02x %02x %02x %02x %8s ", |
b071195de net: replace all ... |
2892 |
&ifp->addr, |
1da177e4c Linux-2.6.12-rc2 |
2893 2894 2895 2896 2897 2898 2899 |
ifp->idev->dev->ifindex, ifp->prefix_len, ifp->scope, ifp->flags, ifp->idev->dev->name); return 0; } |
56b3d975b [NET]: Make all i... |
2900 |
static const struct seq_operations if6_seq_ops = { |
1da177e4c Linux-2.6.12-rc2 |
2901 2902 2903 2904 2905 2906 2907 2908 |
.start = if6_seq_start, .next = if6_seq_next, .show = if6_seq_show, .stop = if6_seq_stop, }; static int if6_seq_open(struct inode *inode, struct file *file) { |
3c40090a0 [NETNS][IPV6]: in... |
2909 2910 |
return seq_open_net(inode, file, &if6_seq_ops, sizeof(struct if6_iter_state)); |
1da177e4c Linux-2.6.12-rc2 |
2911 |
} |
9a32144e9 [PATCH] mark stru... |
2912 |
static const struct file_operations if6_fops = { |
1da177e4c Linux-2.6.12-rc2 |
2913 2914 2915 2916 |
.owner = THIS_MODULE, .open = if6_seq_open, .read = seq_read, .llseek = seq_lseek, |
3c40090a0 [NETNS][IPV6]: in... |
2917 |
.release = seq_release_net, |
1da177e4c Linux-2.6.12-rc2 |
2918 |
}; |
3c40090a0 [NETNS][IPV6]: in... |
2919 |
static int if6_proc_net_init(struct net *net) |
1da177e4c Linux-2.6.12-rc2 |
2920 |
{ |
3c40090a0 [NETNS][IPV6]: in... |
2921 |
if (!proc_net_fops_create(net, "if_inet6", S_IRUGO, &if6_fops)) |
1da177e4c Linux-2.6.12-rc2 |
2922 2923 2924 |
return -ENOMEM; return 0; } |
3c40090a0 [NETNS][IPV6]: in... |
2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 |
static void if6_proc_net_exit(struct net *net) { proc_net_remove(net, "if_inet6"); } static struct pernet_operations if6_proc_net_ops = { .init = if6_proc_net_init, .exit = if6_proc_net_exit, }; int __init if6_proc_init(void) { return register_pernet_subsys(&if6_proc_net_ops); } |
1da177e4c Linux-2.6.12-rc2 |
2939 2940 |
void if6_proc_exit(void) { |
3c40090a0 [NETNS][IPV6]: in... |
2941 |
unregister_pernet_subsys(&if6_proc_net_ops); |
1da177e4c Linux-2.6.12-rc2 |
2942 2943 |
} #endif /* CONFIG_PROC_FS */ |
59fbb3a61 [IPV6] MIP6: Load... |
2944 |
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE) |
3b9f9a1c3 [IPV6] ADDRCONF: ... |
2945 |
/* Check if address is a home address configured on any interface. */ |
389f66122 [NETNS][IPV6]: in... |
2946 |
int ipv6_chk_home_addr(struct net *net, struct in6_addr *addr) |
3b9f9a1c3 [IPV6] ADDRCONF: ... |
2947 2948 2949 2950 2951 2952 |
{ int ret = 0; struct inet6_ifaddr * ifp; u8 hash = ipv6_addr_hash(addr); read_lock_bh(&addrconf_hash_lock); for (ifp = inet6_addr_lst[hash]; ifp; ifp = ifp->lst_next) { |
878628fbf [NET] NETNS: Omit... |
2953 |
if (!net_eq(dev_net(ifp->idev->dev), net)) |
389f66122 [NETNS][IPV6]: in... |
2954 |
continue; |
caad295fe [IPV6]: Use ipv6_... |
2955 |
if (ipv6_addr_equal(&ifp->addr, addr) && |
3b9f9a1c3 [IPV6] ADDRCONF: ... |
2956 2957 2958 2959 2960 2961 2962 2963 2964 |
(ifp->flags & IFA_F_HOMEADDRESS)) { ret = 1; break; } } read_unlock_bh(&addrconf_hash_lock); return ret; } #endif |
1da177e4c Linux-2.6.12-rc2 |
2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 |
/* * Periodic address status verification */ static void addrconf_verify(unsigned long foo) { struct inet6_ifaddr *ifp; unsigned long now, next; int i; spin_lock_bh(&addrconf_verify_lock); now = jiffies; next = now + ADDR_CHECK_FREQUENCY; del_timer(&addr_chk_timer); for (i=0; i < IN6_ADDR_HSIZE; i++) { restart: |
5d5780df2 [IPV6]: Acquire a... |
2984 |
read_lock(&addrconf_hash_lock); |
1da177e4c Linux-2.6.12-rc2 |
2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 |
for (ifp=inet6_addr_lst[i]; ifp; ifp=ifp->lst_next) { unsigned long age; #ifdef CONFIG_IPV6_PRIVACY unsigned long regen_advance; #endif if (ifp->flags & IFA_F_PERMANENT) continue; spin_lock(&ifp->lock); age = (now - ifp->tstamp) / HZ; #ifdef CONFIG_IPV6_PRIVACY |
1ab1457c4 [NET] IPV6: Fix w... |
2998 2999 |
regen_advance = ifp->idev->cnf.regen_max_retry * ifp->idev->cnf.dad_transmits * |
1da177e4c Linux-2.6.12-rc2 |
3000 3001 |
ifp->idev->nd_parms->retrans_time / HZ; #endif |
8f27ebb98 [IPV6] ADDRCONF: ... |
3002 3003 |
if (ifp->valid_lft != INFINITY_LIFE_TIME && age >= ifp->valid_lft) { |
1da177e4c Linux-2.6.12-rc2 |
3004 3005 |
spin_unlock(&ifp->lock); in6_ifa_hold(ifp); |
5d5780df2 [IPV6]: Acquire a... |
3006 |
read_unlock(&addrconf_hash_lock); |
1da177e4c Linux-2.6.12-rc2 |
3007 3008 |
ipv6_del_addr(ifp); goto restart; |
8f27ebb98 [IPV6] ADDRCONF: ... |
3009 3010 3011 |
} else if (ifp->prefered_lft == INFINITY_LIFE_TIME) { spin_unlock(&ifp->lock); continue; |
1da177e4c Linux-2.6.12-rc2 |
3012 |
} else if (age >= ifp->prefered_lft) { |
a1ed05263 IPv6: preferred l... |
3013 |
/* jiffies - ifp->tstamp > age >= ifp->prefered_lft */ |
1da177e4c Linux-2.6.12-rc2 |
3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 |
int deprecate = 0; if (!(ifp->flags&IFA_F_DEPRECATED)) { deprecate = 1; ifp->flags |= IFA_F_DEPRECATED; } if (time_before(ifp->tstamp + ifp->valid_lft * HZ, next)) next = ifp->tstamp + ifp->valid_lft * HZ; spin_unlock(&ifp->lock); if (deprecate) { in6_ifa_hold(ifp); |
5d5780df2 [IPV6]: Acquire a... |
3028 |
read_unlock(&addrconf_hash_lock); |
1da177e4c Linux-2.6.12-rc2 |
3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 |
ipv6_ifa_notify(0, ifp); in6_ifa_put(ifp); goto restart; } #ifdef CONFIG_IPV6_PRIVACY } else if ((ifp->flags&IFA_F_TEMPORARY) && !(ifp->flags&IFA_F_TENTATIVE)) { if (age >= ifp->prefered_lft - regen_advance) { struct inet6_ifaddr *ifpub = ifp->ifpub; if (time_before(ifp->tstamp + ifp->prefered_lft * HZ, next)) next = ifp->tstamp + ifp->prefered_lft * HZ; if (!ifp->regen_count && ifpub) { ifp->regen_count++; in6_ifa_hold(ifp); in6_ifa_hold(ifpub); spin_unlock(&ifp->lock); |
5d5780df2 [IPV6]: Acquire a... |
3046 |
read_unlock(&addrconf_hash_lock); |
291d809ba [IPV6]: Fix Tempo... |
3047 3048 3049 |
spin_lock(&ifpub->lock); ifpub->regen_count = 0; spin_unlock(&ifpub->lock); |
1da177e4c Linux-2.6.12-rc2 |
3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 |
ipv6_create_tempaddr(ifpub, ifp); in6_ifa_put(ifpub); in6_ifa_put(ifp); goto restart; } } else if (time_before(ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ, next)) next = ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ; spin_unlock(&ifp->lock); #endif } else { /* ifp->prefered_lft <= ifp->valid_lft */ if (time_before(ifp->tstamp + ifp->prefered_lft * HZ, next)) next = ifp->tstamp + ifp->prefered_lft * HZ; spin_unlock(&ifp->lock); } } |
5d5780df2 [IPV6]: Acquire a... |
3066 |
read_unlock(&addrconf_hash_lock); |
1da177e4c Linux-2.6.12-rc2 |
3067 3068 3069 3070 3071 3072 |
} addr_chk_timer.expires = time_before(next, jiffies + HZ) ? jiffies + HZ : next; add_timer(&addr_chk_timer); spin_unlock_bh(&addrconf_verify_lock); } |
461d8837f [IPV6] address: C... |
3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 |
static struct in6_addr *extract_addr(struct nlattr *addr, struct nlattr *local) { struct in6_addr *pfx = NULL; if (addr) pfx = nla_data(addr); if (local) { if (pfx && nla_memcmp(local, pfx, sizeof(*pfx))) pfx = NULL; else pfx = nla_data(local); } return pfx; } |
ef7c79ed6 [NETLINK]: Mark n... |
3089 |
static const struct nla_policy ifa_ipv6_policy[IFA_MAX+1] = { |
461d8837f [IPV6] address: C... |
3090 3091 3092 3093 |
[IFA_ADDRESS] = { .len = sizeof(struct in6_addr) }, [IFA_LOCAL] = { .len = sizeof(struct in6_addr) }, [IFA_CACHEINFO] = { .len = sizeof(struct ifa_cacheinfo) }, }; |
1da177e4c Linux-2.6.12-rc2 |
3094 3095 3096 |
static int inet6_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) { |
3b1e0a655 [NET] NETNS: Omit... |
3097 |
struct net *net = sock_net(skb->sk); |
b933f7166 [IPV6] address: C... |
3098 3099 |
struct ifaddrmsg *ifm; struct nlattr *tb[IFA_MAX+1]; |
1da177e4c Linux-2.6.12-rc2 |
3100 |
struct in6_addr *pfx; |
b933f7166 [IPV6] address: C... |
3101 |
int err; |
1da177e4c Linux-2.6.12-rc2 |
3102 |
|
b933f7166 [IPV6] address: C... |
3103 3104 3105 3106 3107 3108 |
err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv6_policy); if (err < 0) return err; ifm = nlmsg_data(nlh); pfx = extract_addr(tb[IFA_ADDRESS], tb[IFA_LOCAL]); |
1da177e4c Linux-2.6.12-rc2 |
3109 3110 |
if (pfx == NULL) return -EINVAL; |
af2849377 [NETNS][IPV6] add... |
3111 |
return inet6_addr_del(net, ifm->ifa_index, pfx, ifm->ifa_prefixlen); |
1da177e4c Linux-2.6.12-rc2 |
3112 |
} |
55ebaef1d [IPV6] ADDRCONF: ... |
3113 3114 |
static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags, u32 prefered_lft, u32 valid_lft) |
081bba5b3 [IPV6] ADDRCONF: ... |
3115 |
{ |
6f704992d ipv6 addrconf: Al... |
3116 3117 |
u32 flags; clock_t expires; |
4bed72e4f [IPV6] ADDRCONF: ... |
3118 |
unsigned long timeout; |
46d480468 [IPV6] ADDRCONF: ... |
3119 |
|
081bba5b3 [IPV6] ADDRCONF: ... |
3120 3121 |
if (!valid_lft || (prefered_lft > valid_lft)) return -EINVAL; |
4bed72e4f [IPV6] ADDRCONF: ... |
3122 3123 3124 3125 |
timeout = addrconf_timeout_fixup(valid_lft, HZ); if (addrconf_finite_timeout(timeout)) { expires = jiffies_to_clock_t(timeout * HZ); valid_lft = timeout; |
6f704992d ipv6 addrconf: Al... |
3126 |
flags = RTF_EXPIRES; |
4bed72e4f [IPV6] ADDRCONF: ... |
3127 3128 3129 3130 |
} else { expires = 0; flags = 0; ifa_flags |= IFA_F_PERMANENT; |
6f704992d ipv6 addrconf: Al... |
3131 |
} |
081bba5b3 [IPV6] ADDRCONF: ... |
3132 |
|
4bed72e4f [IPV6] ADDRCONF: ... |
3133 3134 3135 3136 3137 3138 |
timeout = addrconf_timeout_fixup(prefered_lft, HZ); if (addrconf_finite_timeout(timeout)) { if (timeout == 0) ifa_flags |= IFA_F_DEPRECATED; prefered_lft = timeout; } |
081bba5b3 [IPV6] ADDRCONF: ... |
3139 3140 |
spin_lock_bh(&ifp->lock); |
3b9f9a1c3 [IPV6] ADDRCONF: ... |
3141 |
ifp->flags = (ifp->flags & ~(IFA_F_DEPRECATED | IFA_F_PERMANENT | IFA_F_NODAD | IFA_F_HOMEADDRESS)) | ifa_flags; |
081bba5b3 [IPV6] ADDRCONF: ... |
3142 3143 3144 3145 3146 3147 3148 |
ifp->tstamp = jiffies; ifp->valid_lft = valid_lft; ifp->prefered_lft = prefered_lft; spin_unlock_bh(&ifp->lock); if (!(ifp->flags&IFA_F_TENTATIVE)) ipv6_ifa_notify(0, ifp); |
081bba5b3 [IPV6] ADDRCONF: ... |
3149 |
|
46d480468 [IPV6] ADDRCONF: ... |
3150 |
addrconf_prefix_route(&ifp->addr, ifp->prefix_len, ifp->idev->dev, |
6f704992d ipv6 addrconf: Al... |
3151 |
expires, flags); |
081bba5b3 [IPV6] ADDRCONF: ... |
3152 3153 3154 3155 3156 3157 |
addrconf_verify(0); return 0; } static int |
1da177e4c Linux-2.6.12-rc2 |
3158 3159 |
inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg) { |
3b1e0a655 [NET] NETNS: Omit... |
3160 |
struct net *net = sock_net(skb->sk); |
461d8837f [IPV6] address: C... |
3161 3162 |
struct ifaddrmsg *ifm; struct nlattr *tb[IFA_MAX+1]; |
1da177e4c Linux-2.6.12-rc2 |
3163 |
struct in6_addr *pfx; |
7198f8cec [IPV6] address: S... |
3164 3165 |
struct inet6_ifaddr *ifa; struct net_device *dev; |
55ebaef1d [IPV6] ADDRCONF: ... |
3166 3167 |
u32 valid_lft = INFINITY_LIFE_TIME, preferred_lft = INFINITY_LIFE_TIME; u8 ifa_flags; |
461d8837f [IPV6] address: C... |
3168 |
int err; |
1da177e4c Linux-2.6.12-rc2 |
3169 |
|
461d8837f [IPV6] address: C... |
3170 3171 3172 3173 3174 3175 |
err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv6_policy); if (err < 0) return err; ifm = nlmsg_data(nlh); pfx = extract_addr(tb[IFA_ADDRESS], tb[IFA_LOCAL]); |
1da177e4c Linux-2.6.12-rc2 |
3176 3177 |
if (pfx == NULL) return -EINVAL; |
461d8837f [IPV6] address: C... |
3178 |
if (tb[IFA_CACHEINFO]) { |
0778769d3 [IPV6] ADDRCONF: ... |
3179 |
struct ifa_cacheinfo *ci; |
461d8837f [IPV6] address: C... |
3180 3181 |
ci = nla_data(tb[IFA_CACHEINFO]); |
0778769d3 [IPV6] ADDRCONF: ... |
3182 |
valid_lft = ci->ifa_valid; |
461d8837f [IPV6] address: C... |
3183 3184 3185 3186 |
preferred_lft = ci->ifa_prefered; } else { preferred_lft = INFINITY_LIFE_TIME; valid_lft = INFINITY_LIFE_TIME; |
0778769d3 [IPV6] ADDRCONF: ... |
3187 |
} |
af2849377 [NETNS][IPV6] add... |
3188 |
dev = __dev_get_by_index(net, ifm->ifa_index); |
7198f8cec [IPV6] address: S... |
3189 3190 |
if (dev == NULL) return -ENODEV; |
55ebaef1d [IPV6] ADDRCONF: ... |
3191 |
/* We ignore other flags so far. */ |
3b9f9a1c3 [IPV6] ADDRCONF: ... |
3192 |
ifa_flags = ifm->ifa_flags & (IFA_F_NODAD | IFA_F_HOMEADDRESS); |
55ebaef1d [IPV6] ADDRCONF: ... |
3193 |
|
1cab3da6b [NETNS][IPV6]: in... |
3194 |
ifa = ipv6_get_ifaddr(net, pfx, dev, 1); |
7198f8cec [IPV6] address: S... |
3195 3196 3197 3198 3199 |
if (ifa == NULL) { /* * It would be best to check for !NLM_F_CREATE here but * userspace alreay relies on not having to provide this. */ |
af2849377 [NETNS][IPV6] add... |
3200 3201 3202 |
return inet6_addr_add(net, ifm->ifa_index, pfx, ifm->ifa_prefixlen, ifa_flags, preferred_lft, valid_lft); |
081bba5b3 [IPV6] ADDRCONF: ... |
3203 |
} |
7198f8cec [IPV6] address: S... |
3204 3205 3206 3207 |
if (nlh->nlmsg_flags & NLM_F_EXCL || !(nlh->nlmsg_flags & NLM_F_REPLACE)) err = -EEXIST; else |
55ebaef1d [IPV6] ADDRCONF: ... |
3208 |
err = inet6_addr_modify(ifa, ifa_flags, preferred_lft, valid_lft); |
7198f8cec [IPV6] address: S... |
3209 3210 3211 3212 |
in6_ifa_put(ifa); return err; |
1da177e4c Linux-2.6.12-rc2 |
3213 |
} |
101bb2296 [IPV6] address: A... |
3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 |
static void put_ifaddrmsg(struct nlmsghdr *nlh, u8 prefixlen, u8 flags, u8 scope, int ifindex) { struct ifaddrmsg *ifm; ifm = nlmsg_data(nlh); ifm->ifa_family = AF_INET6; ifm->ifa_prefixlen = prefixlen; ifm->ifa_flags = flags; ifm->ifa_scope = scope; ifm->ifa_index = ifindex; } |
85486af00 [IPV6] address: A... |
3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 |
static int put_cacheinfo(struct sk_buff *skb, unsigned long cstamp, unsigned long tstamp, u32 preferred, u32 valid) { struct ifa_cacheinfo ci; ci.cstamp = (u32)(TIME_DELTA(cstamp, INITIAL_JIFFIES) / HZ * 100 + TIME_DELTA(cstamp, INITIAL_JIFFIES) % HZ * 100 / HZ); ci.tstamp = (u32)(TIME_DELTA(tstamp, INITIAL_JIFFIES) / HZ * 100 + TIME_DELTA(tstamp, INITIAL_JIFFIES) % HZ * 100 / HZ); ci.ifa_prefered = preferred; ci.ifa_valid = valid; return nla_put(skb, IFA_CACHEINFO, sizeof(ci), &ci); } |
101bb2296 [IPV6] address: A... |
3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 |
static inline int rt_scope(int ifa_scope) { if (ifa_scope & IFA_HOST) return RT_SCOPE_HOST; else if (ifa_scope & IFA_LINK) return RT_SCOPE_LINK; else if (ifa_scope & IFA_SITE) return RT_SCOPE_SITE; else return RT_SCOPE_UNIVERSE; } |
0ab6803bc [IPV6] address: C... |
3251 3252 |
static inline int inet6_ifaddr_msgsize(void) { |
339bf98ff [NETLINK]: Do pre... |
3253 3254 3255 |
return NLMSG_ALIGN(sizeof(struct ifaddrmsg)) + nla_total_size(16) /* IFA_ADDRESS */ + nla_total_size(sizeof(struct ifa_cacheinfo)); |
0ab6803bc [IPV6] address: C... |
3256 |
} |
c5396a31b [IPV6]: Sum real ... |
3257 |
|
1da177e4c Linux-2.6.12-rc2 |
3258 |
static int inet6_fill_ifaddr(struct sk_buff *skb, struct inet6_ifaddr *ifa, |
b6544c0b4 [NETLINK]: Correc... |
3259 |
u32 pid, u32 seq, int event, unsigned int flags) |
1da177e4c Linux-2.6.12-rc2 |
3260 |
{ |
1da177e4c Linux-2.6.12-rc2 |
3261 |
struct nlmsghdr *nlh; |
85486af00 [IPV6] address: A... |
3262 |
u32 preferred, valid; |
1da177e4c Linux-2.6.12-rc2 |
3263 |
|
0ab6803bc [IPV6] address: C... |
3264 3265 |
nlh = nlmsg_put(skb, pid, seq, event, sizeof(struct ifaddrmsg), flags); if (nlh == NULL) |
26932566a [NETLINK]: Don't ... |
3266 |
return -EMSGSIZE; |
0ab6803bc [IPV6] address: C... |
3267 |
|
101bb2296 [IPV6] address: A... |
3268 3269 |
put_ifaddrmsg(nlh, ifa->prefix_len, ifa->flags, rt_scope(ifa->scope), ifa->idev->dev->ifindex); |
1da177e4c Linux-2.6.12-rc2 |
3270 |
if (!(ifa->flags&IFA_F_PERMANENT)) { |
85486af00 [IPV6] address: A... |
3271 3272 3273 |
preferred = ifa->prefered_lft; valid = ifa->valid_lft; if (preferred != INFINITY_LIFE_TIME) { |
1da177e4c Linux-2.6.12-rc2 |
3274 |
long tval = (jiffies - ifa->tstamp)/HZ; |
a1faa6981 ipv6: avoid wrapa... |
3275 3276 3277 3278 |
if (preferred > tval) preferred -= tval; else preferred = 0; |
85486af00 [IPV6] address: A... |
3279 3280 |
if (valid != INFINITY_LIFE_TIME) valid -= tval; |
1da177e4c Linux-2.6.12-rc2 |
3281 3282 |
} } else { |
85486af00 [IPV6] address: A... |
3283 3284 3285 |
preferred = INFINITY_LIFE_TIME; valid = INFINITY_LIFE_TIME; } |
0ab6803bc [IPV6] address: C... |
3286 |
if (nla_put(skb, IFA_ADDRESS, 16, &ifa->addr) < 0 || |
26932566a [NETLINK]: Don't ... |
3287 3288 3289 3290 |
put_cacheinfo(skb, ifa->cstamp, ifa->tstamp, preferred, valid) < 0) { nlmsg_cancel(skb, nlh); return -EMSGSIZE; } |
1da177e4c Linux-2.6.12-rc2 |
3291 |
|
0ab6803bc [IPV6] address: C... |
3292 |
return nlmsg_end(skb, nlh); |
1da177e4c Linux-2.6.12-rc2 |
3293 3294 3295 |
} static int inet6_fill_ifmcaddr(struct sk_buff *skb, struct ifmcaddr6 *ifmca, |
e431b8c00 [NETLINK]: Explic... |
3296 |
u32 pid, u32 seq, int event, u16 flags) |
1da177e4c Linux-2.6.12-rc2 |
3297 |
{ |
1da177e4c Linux-2.6.12-rc2 |
3298 |
struct nlmsghdr *nlh; |
101bb2296 [IPV6] address: A... |
3299 3300 3301 3302 3303 |
u8 scope = RT_SCOPE_UNIVERSE; int ifindex = ifmca->idev->dev->ifindex; if (ipv6_addr_scope(&ifmca->mca_addr) & IFA_SITE) scope = RT_SCOPE_SITE; |
1da177e4c Linux-2.6.12-rc2 |
3304 |
|
0ab6803bc [IPV6] address: C... |
3305 3306 |
nlh = nlmsg_put(skb, pid, seq, event, sizeof(struct ifaddrmsg), flags); if (nlh == NULL) |
26932566a [NETLINK]: Don't ... |
3307 |
return -EMSGSIZE; |
85486af00 [IPV6] address: A... |
3308 |
|
0ab6803bc [IPV6] address: C... |
3309 3310 3311 |
put_ifaddrmsg(nlh, 128, IFA_F_PERMANENT, scope, ifindex); if (nla_put(skb, IFA_MULTICAST, 16, &ifmca->mca_addr) < 0 || put_cacheinfo(skb, ifmca->mca_cstamp, ifmca->mca_tstamp, |
26932566a [NETLINK]: Don't ... |
3312 3313 3314 3315 |
INFINITY_LIFE_TIME, INFINITY_LIFE_TIME) < 0) { nlmsg_cancel(skb, nlh); return -EMSGSIZE; } |
85486af00 [IPV6] address: A... |
3316 |
|
0ab6803bc [IPV6] address: C... |
3317 |
return nlmsg_end(skb, nlh); |
1da177e4c Linux-2.6.12-rc2 |
3318 3319 3320 |
} static int inet6_fill_ifacaddr(struct sk_buff *skb, struct ifacaddr6 *ifaca, |
b6544c0b4 [NETLINK]: Correc... |
3321 |
u32 pid, u32 seq, int event, unsigned int flags) |
1da177e4c Linux-2.6.12-rc2 |
3322 |
{ |
1da177e4c Linux-2.6.12-rc2 |
3323 |
struct nlmsghdr *nlh; |
101bb2296 [IPV6] address: A... |
3324 3325 3326 3327 3328 |
u8 scope = RT_SCOPE_UNIVERSE; int ifindex = ifaca->aca_idev->dev->ifindex; if (ipv6_addr_scope(&ifaca->aca_addr) & IFA_SITE) scope = RT_SCOPE_SITE; |
1da177e4c Linux-2.6.12-rc2 |
3329 |
|
0ab6803bc [IPV6] address: C... |
3330 3331 |
nlh = nlmsg_put(skb, pid, seq, event, sizeof(struct ifaddrmsg), flags); if (nlh == NULL) |
26932566a [NETLINK]: Don't ... |
3332 |
return -EMSGSIZE; |
85486af00 [IPV6] address: A... |
3333 |
|
0ab6803bc [IPV6] address: C... |
3334 3335 3336 |
put_ifaddrmsg(nlh, 128, IFA_F_PERMANENT, scope, ifindex); if (nla_put(skb, IFA_ANYCAST, 16, &ifaca->aca_addr) < 0 || put_cacheinfo(skb, ifaca->aca_cstamp, ifaca->aca_tstamp, |
26932566a [NETLINK]: Don't ... |
3337 3338 3339 3340 |
INFINITY_LIFE_TIME, INFINITY_LIFE_TIME) < 0) { nlmsg_cancel(skb, nlh); return -EMSGSIZE; } |
1da177e4c Linux-2.6.12-rc2 |
3341 |
|
0ab6803bc [IPV6] address: C... |
3342 |
return nlmsg_end(skb, nlh); |
1da177e4c Linux-2.6.12-rc2 |
3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 |
} enum addr_type_t { UNICAST_ADDR, MULTICAST_ADDR, ANYCAST_ADDR, }; static int inet6_dump_addr(struct sk_buff *skb, struct netlink_callback *cb, enum addr_type_t type) { int idx, ip_idx; int s_idx, s_ip_idx; int err = 1; struct net_device *dev; struct inet6_dev *idev = NULL; struct inet6_ifaddr *ifa; struct ifmcaddr6 *ifmca; struct ifacaddr6 *ifaca; |
3b1e0a655 [NET] NETNS: Omit... |
3363 |
struct net *net = sock_net(skb->sk); |
1da177e4c Linux-2.6.12-rc2 |
3364 3365 3366 |
s_idx = cb->args[0]; s_ip_idx = ip_idx = cb->args[1]; |
1ab1457c4 [NET] IPV6: Fix w... |
3367 |
|
7562f876c [NET]: Rework dev... |
3368 |
idx = 0; |
6fda73500 [NETNS][IPV6] add... |
3369 |
for_each_netdev(net, dev) { |
1da177e4c Linux-2.6.12-rc2 |
3370 |
if (idx < s_idx) |
7562f876c [NET]: Rework dev... |
3371 |
goto cont; |
1da177e4c Linux-2.6.12-rc2 |
3372 3373 3374 3375 |
if (idx > s_idx) s_ip_idx = 0; ip_idx = 0; if ((idev = in6_dev_get(dev)) == NULL) |
7562f876c [NET]: Rework dev... |
3376 |
goto cont; |
1da177e4c Linux-2.6.12-rc2 |
3377 3378 3379 |
read_lock_bh(&idev->lock); switch (type) { case UNICAST_ADDR: |
ae9cda5d6 [IPV6]: Don't dum... |
3380 |
/* unicast address incl. temp addr */ |
1da177e4c Linux-2.6.12-rc2 |
3381 3382 3383 3384 |
for (ifa = idev->addr_list; ifa; ifa = ifa->if_next, ip_idx++) { if (ip_idx < s_ip_idx) continue; |
5d5619b40 [IPV6] ADDRCONF: ... |
3385 3386 3387 3388 3389 |
err = inet6_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, RTM_NEWADDR, NLM_F_MULTI); |
1da177e4c Linux-2.6.12-rc2 |
3390 |
} |
1da177e4c Linux-2.6.12-rc2 |
3391 3392 3393 |
break; case MULTICAST_ADDR: /* multicast address */ |
1ab1457c4 [NET] IPV6: Fix w... |
3394 |
for (ifmca = idev->mc_list; ifmca; |
1da177e4c Linux-2.6.12-rc2 |
3395 3396 3397 |
ifmca = ifmca->next, ip_idx++) { if (ip_idx < s_ip_idx) continue; |
5d5619b40 [IPV6] ADDRCONF: ... |
3398 3399 3400 3401 3402 |
err = inet6_fill_ifmcaddr(skb, ifmca, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, RTM_GETMULTICAST, NLM_F_MULTI); |
1da177e4c Linux-2.6.12-rc2 |
3403 3404 3405 3406 3407 3408 3409 3410 |
} break; case ANYCAST_ADDR: /* anycast address */ for (ifaca = idev->ac_list; ifaca; ifaca = ifaca->aca_next, ip_idx++) { if (ip_idx < s_ip_idx) continue; |
5d5619b40 [IPV6] ADDRCONF: ... |
3411 3412 3413 3414 3415 |
err = inet6_fill_ifacaddr(skb, ifaca, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, RTM_GETANYCAST, NLM_F_MULTI); |
1da177e4c Linux-2.6.12-rc2 |
3416 3417 3418 3419 3420 3421 3422 |
} break; default: break; } read_unlock_bh(&idev->lock); in6_dev_put(idev); |
5d5619b40 [IPV6] ADDRCONF: ... |
3423 3424 3425 |
if (err <= 0) break; |
7562f876c [NET]: Rework dev... |
3426 3427 |
cont: idx++; |
1da177e4c Linux-2.6.12-rc2 |
3428 |
} |
1da177e4c Linux-2.6.12-rc2 |
3429 3430 3431 3432 3433 3434 3435 3436 |
cb->args[0] = idx; cb->args[1] = ip_idx; return skb->len; } static int inet6_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb) { enum addr_type_t type = UNICAST_ADDR; |
b854272b3 [NET]: Modify all... |
3437 |
|
1da177e4c Linux-2.6.12-rc2 |
3438 3439 3440 3441 3442 3443 |
return inet6_dump_addr(skb, cb, type); } static int inet6_dump_ifmcaddr(struct sk_buff *skb, struct netlink_callback *cb) { enum addr_type_t type = MULTICAST_ADDR; |
b854272b3 [NET]: Modify all... |
3444 |
|
1da177e4c Linux-2.6.12-rc2 |
3445 3446 3447 3448 3449 3450 3451 |
return inet6_dump_addr(skb, cb, type); } static int inet6_dump_ifacaddr(struct sk_buff *skb, struct netlink_callback *cb) { enum addr_type_t type = ANYCAST_ADDR; |
b854272b3 [NET]: Modify all... |
3452 |
|
1da177e4c Linux-2.6.12-rc2 |
3453 3454 |
return inet6_dump_addr(skb, cb, type); } |
1b29fc2c8 [IPV6] address: C... |
3455 3456 |
static int inet6_rtm_getaddr(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg) |
6c2238280 [IPV6] ADDRCONF: ... |
3457 |
{ |
3b1e0a655 [NET] NETNS: Omit... |
3458 |
struct net *net = sock_net(in_skb->sk); |
1b29fc2c8 [IPV6] address: C... |
3459 3460 |
struct ifaddrmsg *ifm; struct nlattr *tb[IFA_MAX+1]; |
6c2238280 [IPV6] ADDRCONF: ... |
3461 3462 3463 3464 |
struct in6_addr *addr = NULL; struct net_device *dev = NULL; struct inet6_ifaddr *ifa; struct sk_buff *skb; |
6c2238280 [IPV6] ADDRCONF: ... |
3465 |
int err; |
1b29fc2c8 [IPV6] address: C... |
3466 3467 3468 3469 3470 3471 3472 3473 |
err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv6_policy); if (err < 0) goto errout; addr = extract_addr(tb[IFA_ADDRESS], tb[IFA_LOCAL]); if (addr == NULL) { err = -EINVAL; goto errout; |
6c2238280 [IPV6] ADDRCONF: ... |
3474 |
} |
6c2238280 [IPV6] ADDRCONF: ... |
3475 |
|
1b29fc2c8 [IPV6] address: C... |
3476 |
ifm = nlmsg_data(nlh); |
6c2238280 [IPV6] ADDRCONF: ... |
3477 |
if (ifm->ifa_index) |
6fda73500 [NETNS][IPV6] add... |
3478 |
dev = __dev_get_by_index(net, ifm->ifa_index); |
6c2238280 [IPV6] ADDRCONF: ... |
3479 |
|
1cab3da6b [NETNS][IPV6]: in... |
3480 |
if ((ifa = ipv6_get_ifaddr(net, addr, dev, 1)) == NULL) { |
1b29fc2c8 [IPV6] address: C... |
3481 3482 3483 |
err = -EADDRNOTAVAIL; goto errout; } |
6c2238280 [IPV6] ADDRCONF: ... |
3484 |
|
0ab6803bc [IPV6] address: C... |
3485 |
if ((skb = nlmsg_new(inet6_ifaddr_msgsize(), GFP_KERNEL)) == NULL) { |
6c2238280 [IPV6] ADDRCONF: ... |
3486 |
err = -ENOBUFS; |
1b29fc2c8 [IPV6] address: C... |
3487 |
goto errout_ifa; |
6c2238280 [IPV6] ADDRCONF: ... |
3488 |
} |
6c2238280 [IPV6] ADDRCONF: ... |
3489 3490 |
err = inet6_fill_ifaddr(skb, ifa, NETLINK_CB(in_skb).pid, nlh->nlmsg_seq, RTM_NEWADDR, 0); |
26932566a [NETLINK]: Don't ... |
3491 3492 3493 3494 3495 3496 |
if (err < 0) { /* -EMSGSIZE implies BUG in inet6_ifaddr_msgsize() */ WARN_ON(err == -EMSGSIZE); kfree_skb(skb); goto errout_ifa; } |
6fda73500 [NETNS][IPV6] add... |
3497 |
err = rtnl_unicast(skb, net, NETLINK_CB(in_skb).pid); |
1b29fc2c8 [IPV6] address: C... |
3498 |
errout_ifa: |
6c2238280 [IPV6] ADDRCONF: ... |
3499 |
in6_ifa_put(ifa); |
1b29fc2c8 [IPV6] address: C... |
3500 |
errout: |
6c2238280 [IPV6] ADDRCONF: ... |
3501 |
return err; |
6c2238280 [IPV6] ADDRCONF: ... |
3502 |
} |
1da177e4c Linux-2.6.12-rc2 |
3503 3504 3505 |
static void inet6_ifa_notify(int event, struct inet6_ifaddr *ifa) { struct sk_buff *skb; |
c346dca10 [NET] NETNS: Omit... |
3506 |
struct net *net = dev_net(ifa->idev->dev); |
5d6202664 [IPv6] address: C... |
3507 |
int err = -ENOBUFS; |
1da177e4c Linux-2.6.12-rc2 |
3508 |
|
0ab6803bc [IPV6] address: C... |
3509 |
skb = nlmsg_new(inet6_ifaddr_msgsize(), GFP_ATOMIC); |
5d6202664 [IPv6] address: C... |
3510 3511 3512 3513 |
if (skb == NULL) goto errout; err = inet6_fill_ifaddr(skb, ifa, 0, 0, event, 0); |
26932566a [NETLINK]: Don't ... |
3514 3515 3516 3517 3518 3519 |
if (err < 0) { /* -EMSGSIZE implies BUG in inet6_ifaddr_msgsize() */ WARN_ON(err == -EMSGSIZE); kfree_skb(skb); goto errout; } |
1ce85fe40 netlink: change n... |
3520 3521 |
rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC); return; |
5d6202664 [IPv6] address: C... |
3522 3523 |
errout: if (err < 0) |
6fda73500 [NETNS][IPV6] add... |
3524 |
rtnl_set_sk_err(net, RTNLGRP_IPV6_IFADDR, err); |
1da177e4c Linux-2.6.12-rc2 |
3525 |
} |
b6f99a211 [NET]: fix up mis... |
3526 |
static inline void ipv6_store_devconf(struct ipv6_devconf *cnf, |
1da177e4c Linux-2.6.12-rc2 |
3527 3528 |
__s32 *array, int bytes) { |
04561c1fe [IPv6] iflink: Co... |
3529 |
BUG_ON(bytes < (DEVCONF_MAX * 4)); |
1da177e4c Linux-2.6.12-rc2 |
3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 |
memset(array, 0, bytes); array[DEVCONF_FORWARDING] = cnf->forwarding; array[DEVCONF_HOPLIMIT] = cnf->hop_limit; array[DEVCONF_MTU6] = cnf->mtu6; array[DEVCONF_ACCEPT_RA] = cnf->accept_ra; array[DEVCONF_ACCEPT_REDIRECTS] = cnf->accept_redirects; array[DEVCONF_AUTOCONF] = cnf->autoconf; array[DEVCONF_DAD_TRANSMITS] = cnf->dad_transmits; array[DEVCONF_RTR_SOLICITS] = cnf->rtr_solicits; array[DEVCONF_RTR_SOLICIT_INTERVAL] = cnf->rtr_solicit_interval; array[DEVCONF_RTR_SOLICIT_DELAY] = cnf->rtr_solicit_delay; array[DEVCONF_FORCE_MLD_VERSION] = cnf->force_mld_version; #ifdef CONFIG_IPV6_PRIVACY array[DEVCONF_USE_TEMPADDR] = cnf->use_tempaddr; array[DEVCONF_TEMP_VALID_LFT] = cnf->temp_valid_lft; array[DEVCONF_TEMP_PREFERED_LFT] = cnf->temp_prefered_lft; array[DEVCONF_REGEN_MAX_RETRY] = cnf->regen_max_retry; array[DEVCONF_MAX_DESYNC_FACTOR] = cnf->max_desync_factor; #endif array[DEVCONF_MAX_ADDRESSES] = cnf->max_addresses; |
65f5c7c11 [IPV6]: ROUTE: Ad... |
3550 |
array[DEVCONF_ACCEPT_RA_DEFRTR] = cnf->accept_ra_defrtr; |
c4fd30eb1 [IPV6]: ADDRCONF:... |
3551 |
array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo; |
930d6ff2e [IPV6]: ROUTE: Ad... |
3552 3553 |
#ifdef CONFIG_IPV6_ROUTER_PREF array[DEVCONF_ACCEPT_RA_RTR_PREF] = cnf->accept_ra_rtr_pref; |
52e163563 [IPV6]: ROUTE: Ad... |
3554 |
array[DEVCONF_RTR_PROBE_INTERVAL] = cnf->rtr_probe_interval; |
fa03ef38e [IPV6]: Fix up so... |
3555 |
#ifdef CONFIG_IPV6_ROUTE_INFO |
09c884d4c [IPV6]: ROUTE: Ad... |
3556 3557 |
array[DEVCONF_ACCEPT_RA_RT_INFO_MAX_PLEN] = cnf->accept_ra_rt_info_max_plen; #endif |
930d6ff2e [IPV6]: ROUTE: Ad... |
3558 |
#endif |
fbea49e1e [IPV6] NDISC: Add... |
3559 |
array[DEVCONF_PROXY_NDP] = cnf->proxy_ndp; |
0bcbc9262 [IPV6]: Disallow ... |
3560 |
array[DEVCONF_ACCEPT_SOURCE_ROUTE] = cnf->accept_source_route; |
95c385b4d [IPV6] ADDRCONF: ... |
3561 3562 3563 |
#ifdef CONFIG_IPV6_OPTIMISTIC_DAD array[DEVCONF_OPTIMISTIC_DAD] = cnf->optimistic_dad; #endif |
7bc570c8b [IPV6] MROUTE: Su... |
3564 3565 3566 |
#ifdef CONFIG_IPV6_MROUTE array[DEVCONF_MC_FORWARDING] = cnf->mc_forwarding; #endif |
778d80be5 ipv6: Add disable... |
3567 |
array[DEVCONF_DISABLE_IPV6] = cnf->disable_ipv6; |
1b34be74c ipv6 addrconf: ad... |
3568 |
array[DEVCONF_ACCEPT_DAD] = cnf->accept_dad; |
1da177e4c Linux-2.6.12-rc2 |
3569 |
} |
339bf98ff [NETLINK]: Do pre... |
3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 |
static inline size_t inet6_if_nlmsg_size(void) { return NLMSG_ALIGN(sizeof(struct ifinfomsg)) + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */ + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */ + nla_total_size(4) /* IFLA_MTU */ + nla_total_size(4) /* IFLA_LINK */ + nla_total_size( /* IFLA_PROTINFO */ nla_total_size(4) /* IFLA_INET6_FLAGS */ + nla_total_size(sizeof(struct ifla_cacheinfo)) + nla_total_size(DEVCONF_MAX * 4) /* IFLA_INET6_CONF */ |
bf99f1bde [IPV6] SNMP: Netl... |
3581 3582 |
+ nla_total_size(IPSTATS_MIB_MAX * 8) /* IFLA_INET6_STATS */ + nla_total_size(ICMP6_MIB_MAX * 8) /* IFLA_INET6_ICMP6STATS */ |
339bf98ff [NETLINK]: Do pre... |
3583 3584 |
); } |
c5396a31b [IPV6]: Sum real ... |
3585 |
|
7f7d9a6b9 [IPV6]: Consolida... |
3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 |
static inline void __snmp6_fill_stats(u64 *stats, void **mib, int items, int bytes) { int i; int pad = bytes - sizeof(u64) * items; BUG_ON(pad < 0); /* Use put_unaligned() because stats may not be aligned for u64. */ put_unaligned(items, &stats[0]); for (i = 1; i < items; i++) put_unaligned(snmp_fold_field(mib, i), &stats[i]); memset(&stats[items], 0, pad); } static void snmp6_fill_stats(u64 *stats, struct inet6_dev *idev, int attrtype, int bytes) { switch(attrtype) { case IFLA_INET6_STATS: __snmp6_fill_stats(stats, (void **)idev->stats.ipv6, IPSTATS_MIB_MAX, bytes); break; case IFLA_INET6_ICMP6STATS: __snmp6_fill_stats(stats, (void **)idev->stats.icmpv6, ICMP6_MIB_MAX, bytes); break; } } |
1ab1457c4 [NET] IPV6: Fix w... |
3613 |
static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev, |
b6544c0b4 [NETLINK]: Correc... |
3614 |
u32 pid, u32 seq, int event, unsigned int flags) |
1da177e4c Linux-2.6.12-rc2 |
3615 |
{ |
04561c1fe [IPv6] iflink: Co... |
3616 |
struct net_device *dev = idev->dev; |
bf99f1bde [IPV6] SNMP: Netl... |
3617 |
struct nlattr *nla; |
04561c1fe [IPv6] iflink: Co... |
3618 3619 3620 3621 3622 3623 3624 |
struct ifinfomsg *hdr; struct nlmsghdr *nlh; void *protoinfo; struct ifla_cacheinfo ci; nlh = nlmsg_put(skb, pid, seq, event, sizeof(*hdr), flags); if (nlh == NULL) |
26932566a [NETLINK]: Don't ... |
3625 |
return -EMSGSIZE; |
04561c1fe [IPv6] iflink: Co... |
3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 |
hdr = nlmsg_data(nlh); hdr->ifi_family = AF_INET6; hdr->__ifi_pad = 0; hdr->ifi_type = dev->type; hdr->ifi_index = dev->ifindex; hdr->ifi_flags = dev_get_flags(dev); hdr->ifi_change = 0; NLA_PUT_STRING(skb, IFLA_IFNAME, dev->name); |
1da177e4c Linux-2.6.12-rc2 |
3636 3637 |
if (dev->addr_len) |
04561c1fe [IPv6] iflink: Co... |
3638 |
NLA_PUT(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr); |
1da177e4c Linux-2.6.12-rc2 |
3639 |
|
04561c1fe [IPv6] iflink: Co... |
3640 |
NLA_PUT_U32(skb, IFLA_MTU, dev->mtu); |
1da177e4c Linux-2.6.12-rc2 |
3641 |
if (dev->ifindex != dev->iflink) |
04561c1fe [IPv6] iflink: Co... |
3642 |
NLA_PUT_U32(skb, IFLA_LINK, dev->iflink); |
1da177e4c Linux-2.6.12-rc2 |
3643 |
|
04561c1fe [IPv6] iflink: Co... |
3644 3645 3646 |
protoinfo = nla_nest_start(skb, IFLA_PROTINFO); if (protoinfo == NULL) goto nla_put_failure; |
1da177e4c Linux-2.6.12-rc2 |
3647 |
|
04561c1fe [IPv6] iflink: Co... |
3648 |
NLA_PUT_U32(skb, IFLA_INET6_FLAGS, idev->if_flags); |
1da177e4c Linux-2.6.12-rc2 |
3649 |
|
1da177e4c Linux-2.6.12-rc2 |
3650 3651 3652 3653 3654 |
ci.max_reasm_len = IPV6_MAXPLEN; ci.tstamp = (__u32)(TIME_DELTA(idev->tstamp, INITIAL_JIFFIES) / HZ * 100 + TIME_DELTA(idev->tstamp, INITIAL_JIFFIES) % HZ * 100 / HZ); ci.reachable_time = idev->nd_parms->reachable_time; ci.retrans_time = idev->nd_parms->retrans_time; |
04561c1fe [IPv6] iflink: Co... |
3655 |
NLA_PUT(skb, IFLA_INET6_CACHEINFO, sizeof(ci), &ci); |
bf99f1bde [IPV6] SNMP: Netl... |
3656 3657 |
nla = nla_reserve(skb, IFLA_INET6_CONF, DEVCONF_MAX * sizeof(s32)); if (nla == NULL) |
04561c1fe [IPv6] iflink: Co... |
3658 |
goto nla_put_failure; |
bf99f1bde [IPV6] SNMP: Netl... |
3659 |
ipv6_store_devconf(&idev->cnf, nla_data(nla), nla_len(nla)); |
1da177e4c Linux-2.6.12-rc2 |
3660 |
|
bf99f1bde [IPV6] SNMP: Netl... |
3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 |
/* XXX - MC not implemented */ nla = nla_reserve(skb, IFLA_INET6_STATS, IPSTATS_MIB_MAX * sizeof(u64)); if (nla == NULL) goto nla_put_failure; snmp6_fill_stats(nla_data(nla), idev, IFLA_INET6_STATS, nla_len(nla)); nla = nla_reserve(skb, IFLA_INET6_ICMP6STATS, ICMP6_MIB_MAX * sizeof(u64)); if (nla == NULL) goto nla_put_failure; snmp6_fill_stats(nla_data(nla), idev, IFLA_INET6_ICMP6STATS, nla_len(nla)); |
1da177e4c Linux-2.6.12-rc2 |
3672 |
|
04561c1fe [IPv6] iflink: Co... |
3673 3674 |
nla_nest_end(skb, protoinfo); return nlmsg_end(skb, nlh); |
1da177e4c Linux-2.6.12-rc2 |
3675 |
|
04561c1fe [IPv6] iflink: Co... |
3676 |
nla_put_failure: |
26932566a [NETLINK]: Don't ... |
3677 3678 |
nlmsg_cancel(skb, nlh); return -EMSGSIZE; |
1da177e4c Linux-2.6.12-rc2 |
3679 3680 3681 3682 |
} static int inet6_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb) { |
3b1e0a655 [NET] NETNS: Omit... |
3683 |
struct net *net = sock_net(skb->sk); |
1da177e4c Linux-2.6.12-rc2 |
3684 3685 3686 3687 3688 3689 |
int idx, err; int s_idx = cb->args[0]; struct net_device *dev; struct inet6_dev *idev; read_lock(&dev_base_lock); |
7562f876c [NET]: Rework dev... |
3690 |
idx = 0; |
6fda73500 [NETNS][IPV6] add... |
3691 |
for_each_netdev(net, dev) { |
1da177e4c Linux-2.6.12-rc2 |
3692 |
if (idx < s_idx) |
7562f876c [NET]: Rework dev... |
3693 |
goto cont; |
1da177e4c Linux-2.6.12-rc2 |
3694 |
if ((idev = in6_dev_get(dev)) == NULL) |
7562f876c [NET]: Rework dev... |
3695 |
goto cont; |
1ab1457c4 [NET] IPV6: Fix w... |
3696 |
err = inet6_fill_ifinfo(skb, idev, NETLINK_CB(cb->skb).pid, |
b6544c0b4 [NETLINK]: Correc... |
3697 |
cb->nlh->nlmsg_seq, RTM_NEWLINK, NLM_F_MULTI); |
1da177e4c Linux-2.6.12-rc2 |
3698 3699 3700 |
in6_dev_put(idev); if (err <= 0) break; |
7562f876c [NET]: Rework dev... |
3701 3702 |
cont: idx++; |
1da177e4c Linux-2.6.12-rc2 |
3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 |
} read_unlock(&dev_base_lock); cb->args[0] = idx; return skb->len; } void inet6_ifinfo_notify(int event, struct inet6_dev *idev) { struct sk_buff *skb; |
c346dca10 [NET] NETNS: Omit... |
3713 |
struct net *net = dev_net(idev->dev); |
8d7a76c9b [IPv6] link: Conv... |
3714 |
int err = -ENOBUFS; |
1ab1457c4 [NET] IPV6: Fix w... |
3715 |
|
339bf98ff [NETLINK]: Do pre... |
3716 |
skb = nlmsg_new(inet6_if_nlmsg_size(), GFP_ATOMIC); |
8d7a76c9b [IPv6] link: Conv... |
3717 3718 3719 3720 |
if (skb == NULL) goto errout; err = inet6_fill_ifinfo(skb, idev, 0, 0, event, 0); |
26932566a [NETLINK]: Don't ... |
3721 3722 3723 3724 3725 3726 |
if (err < 0) { /* -EMSGSIZE implies BUG in inet6_if_nlmsg_size() */ WARN_ON(err == -EMSGSIZE); kfree_skb(skb); goto errout; } |
1ce85fe40 netlink: change n... |
3727 3728 |
rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC); return; |
8d7a76c9b [IPv6] link: Conv... |
3729 3730 |
errout: if (err < 0) |
6fda73500 [NETNS][IPV6] add... |
3731 |
rtnl_set_sk_err(net, RTNLGRP_IPV6_IFADDR, err); |
1da177e4c Linux-2.6.12-rc2 |
3732 |
} |
339bf98ff [NETLINK]: Do pre... |
3733 3734 3735 3736 3737 3738 |
static inline size_t inet6_prefix_nlmsg_size(void) { return NLMSG_ALIGN(sizeof(struct prefixmsg)) + nla_total_size(sizeof(struct in6_addr)) + nla_total_size(sizeof(struct prefix_cacheinfo)); } |
c5396a31b [IPV6]: Sum real ... |
3739 |
|
1da177e4c Linux-2.6.12-rc2 |
3740 |
static int inet6_fill_prefix(struct sk_buff *skb, struct inet6_dev *idev, |
6051e2f4f [IPv6] prefix: Co... |
3741 3742 |
struct prefix_info *pinfo, u32 pid, u32 seq, int event, unsigned int flags) |
1da177e4c Linux-2.6.12-rc2 |
3743 |
{ |
6051e2f4f [IPv6] prefix: Co... |
3744 3745 |
struct prefixmsg *pmsg; struct nlmsghdr *nlh; |
1da177e4c Linux-2.6.12-rc2 |
3746 |
struct prefix_cacheinfo ci; |
6051e2f4f [IPv6] prefix: Co... |
3747 3748 |
nlh = nlmsg_put(skb, pid, seq, event, sizeof(*pmsg), flags); if (nlh == NULL) |
26932566a [NETLINK]: Don't ... |
3749 |
return -EMSGSIZE; |
6051e2f4f [IPv6] prefix: Co... |
3750 3751 |
pmsg = nlmsg_data(nlh); |
1da177e4c Linux-2.6.12-rc2 |
3752 |
pmsg->prefix_family = AF_INET6; |
8a47077a0 [NETLINK]: Missin... |
3753 3754 |
pmsg->prefix_pad1 = 0; pmsg->prefix_pad2 = 0; |
1da177e4c Linux-2.6.12-rc2 |
3755 3756 3757 |
pmsg->prefix_ifindex = idev->dev->ifindex; pmsg->prefix_len = pinfo->prefix_len; pmsg->prefix_type = pinfo->type; |
8a47077a0 [NETLINK]: Missin... |
3758 |
pmsg->prefix_pad3 = 0; |
1da177e4c Linux-2.6.12-rc2 |
3759 3760 3761 3762 3763 |
pmsg->prefix_flags = 0; if (pinfo->onlink) pmsg->prefix_flags |= IF_PREFIX_ONLINK; if (pinfo->autoconf) pmsg->prefix_flags |= IF_PREFIX_AUTOCONF; |
6051e2f4f [IPv6] prefix: Co... |
3764 |
NLA_PUT(skb, PREFIX_ADDRESS, sizeof(pinfo->prefix), &pinfo->prefix); |
1da177e4c Linux-2.6.12-rc2 |
3765 3766 3767 |
ci.preferred_time = ntohl(pinfo->prefered); ci.valid_time = ntohl(pinfo->valid); |
6051e2f4f [IPv6] prefix: Co... |
3768 |
NLA_PUT(skb, PREFIX_CACHEINFO, sizeof(ci), &ci); |
1da177e4c Linux-2.6.12-rc2 |
3769 |
|
6051e2f4f [IPv6] prefix: Co... |
3770 |
return nlmsg_end(skb, nlh); |
1da177e4c Linux-2.6.12-rc2 |
3771 |
|
6051e2f4f [IPv6] prefix: Co... |
3772 |
nla_put_failure: |
26932566a [NETLINK]: Don't ... |
3773 3774 |
nlmsg_cancel(skb, nlh); return -EMSGSIZE; |
1da177e4c Linux-2.6.12-rc2 |
3775 |
} |
1ab1457c4 [NET] IPV6: Fix w... |
3776 |
static void inet6_prefix_notify(int event, struct inet6_dev *idev, |
1da177e4c Linux-2.6.12-rc2 |
3777 3778 3779 |
struct prefix_info *pinfo) { struct sk_buff *skb; |
c346dca10 [NET] NETNS: Omit... |
3780 |
struct net *net = dev_net(idev->dev); |
8c384bfa3 [IPv6] prefix: Co... |
3781 |
int err = -ENOBUFS; |
1da177e4c Linux-2.6.12-rc2 |
3782 |
|
339bf98ff [NETLINK]: Do pre... |
3783 |
skb = nlmsg_new(inet6_prefix_nlmsg_size(), GFP_ATOMIC); |
8c384bfa3 [IPv6] prefix: Co... |
3784 3785 3786 3787 |
if (skb == NULL) goto errout; err = inet6_fill_prefix(skb, idev, pinfo, 0, 0, event, 0); |
26932566a [NETLINK]: Don't ... |
3788 3789 3790 3791 3792 3793 |
if (err < 0) { /* -EMSGSIZE implies BUG in inet6_prefix_nlmsg_size() */ WARN_ON(err == -EMSGSIZE); kfree_skb(skb); goto errout; } |
1ce85fe40 netlink: change n... |
3794 3795 |
rtnl_notify(skb, net, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC); return; |
8c384bfa3 [IPv6] prefix: Co... |
3796 3797 |
errout: if (err < 0) |
6fda73500 [NETNS][IPV6] add... |
3798 |
rtnl_set_sk_err(net, RTNLGRP_IPV6_PREFIX, err); |
1da177e4c Linux-2.6.12-rc2 |
3799 |
} |
1da177e4c Linux-2.6.12-rc2 |
3800 3801 3802 3803 3804 3805 |
static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp) { inet6_ifa_notify(event ? : RTM_NEWADDR, ifp); switch (event) { case RTM_NEWADDR: |
95c385b4d [IPV6] ADDRCONF: ... |
3806 3807 3808 3809 3810 3811 3812 3813 |
/* * If the address was optimistic * we inserted the route at the start of * our DAD process, so we don't need * to do it again */ if (!(ifp->rt->rt6i_node)) ip6_ins_rt(ifp->rt); |
1da177e4c Linux-2.6.12-rc2 |
3814 3815 3816 3817 3818 3819 3820 3821 |
if (ifp->idev->cnf.forwarding) addrconf_join_anycast(ifp); break; case RTM_DELADDR: if (ifp->idev->cnf.forwarding) addrconf_leave_anycast(ifp); addrconf_leave_solict(ifp->idev, &ifp->addr); dst_hold(&ifp->rt->u.dst); |
e0a1ad73d [IPv6] route: Sim... |
3822 |
if (ip6_del_rt(ifp->rt)) |
1da177e4c Linux-2.6.12-rc2 |
3823 |
dst_free(&ifp->rt->u.dst); |
1da177e4c Linux-2.6.12-rc2 |
3824 3825 3826 3827 3828 3829 |
break; } } static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp) { |
8814c4b53 [IPV6] ADDRCONF: ... |
3830 |
rcu_read_lock_bh(); |
1da177e4c Linux-2.6.12-rc2 |
3831 3832 |
if (likely(ifp->idev->dead == 0)) __ipv6_ifa_notify(event, ifp); |
8814c4b53 [IPV6] ADDRCONF: ... |
3833 |
rcu_read_unlock_bh(); |
1da177e4c Linux-2.6.12-rc2 |
3834 3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 3846 |
} #ifdef CONFIG_SYSCTL static int addrconf_sysctl_forward(ctl_table *ctl, int write, struct file * filp, void __user *buffer, size_t *lenp, loff_t *ppos) { int *valp = ctl->data; int val = *valp; int ret; ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos); |
c8fecf224 [IPV6]: Eliminate... |
3847 |
if (write) |
b325fddb7 ipv6: Fix sysctl ... |
3848 |
ret = addrconf_fixup_forwarding(ctl, valp, val); |
1ab1457c4 [NET] IPV6: Fix w... |
3849 |
return ret; |
1da177e4c Linux-2.6.12-rc2 |
3850 |
} |
1ab1457c4 [NET] IPV6: Fix w... |
3851 |
static int addrconf_sysctl_forward_strategy(ctl_table *table, |
1da177e4c Linux-2.6.12-rc2 |
3852 3853 |
void __user *oldval, size_t __user *oldlenp, |
1f29bcd73 [PATCH] sysctl: r... |
3854 |
void __user *newval, size_t newlen) |
1da177e4c Linux-2.6.12-rc2 |
3855 3856 |
{ int *valp = table->data; |
c8fecf224 [IPV6]: Eliminate... |
3857 |
int val = *valp; |
1da177e4c Linux-2.6.12-rc2 |
3858 3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877 3878 3879 3880 |
int new; if (!newval || !newlen) return 0; if (newlen != sizeof(int)) return -EINVAL; if (get_user(new, (int __user *)newval)) return -EFAULT; if (new == *valp) return 0; if (oldval && oldlenp) { size_t len; if (get_user(len, oldlenp)) return -EFAULT; if (len) { if (len > table->maxlen) len = table->maxlen; if (copy_to_user(oldval, valp, len)) return -EFAULT; if (put_user(len, oldlenp)) return -EFAULT; } } |
c8fecf224 [IPV6]: Eliminate... |
3881 |
*valp = new; |
b325fddb7 ipv6: Fix sysctl ... |
3882 |
return addrconf_fixup_forwarding(table, valp, val); |
1da177e4c Linux-2.6.12-rc2 |
3883 |
} |
56d417b12 IPv6: Add 'autoco... |
3884 3885 3886 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918 3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 |
static void dev_disable_change(struct inet6_dev *idev) { if (!idev || !idev->dev) return; if (idev->cnf.disable_ipv6) addrconf_notify(NULL, NETDEV_DOWN, idev->dev); else addrconf_notify(NULL, NETDEV_UP, idev->dev); } static void addrconf_disable_change(struct net *net, __s32 newf) { struct net_device *dev; struct inet6_dev *idev; read_lock(&dev_base_lock); for_each_netdev(net, dev) { rcu_read_lock(); idev = __in6_dev_get(dev); if (idev) { int changed = (!idev->cnf.disable_ipv6) ^ (!newf); idev->cnf.disable_ipv6 = newf; if (changed) dev_disable_change(idev); } rcu_read_unlock(); } read_unlock(&dev_base_lock); } static int addrconf_disable_ipv6(struct ctl_table *table, int *p, int old) { struct net *net; net = (struct net *)table->extra2; if (p == &net->ipv6.devconf_dflt->disable_ipv6) return 0; if (!rtnl_trylock()) return restart_syscall(); if (p == &net->ipv6.devconf_all->disable_ipv6) { __s32 newf = net->ipv6.devconf_all->disable_ipv6; net->ipv6.devconf_dflt->disable_ipv6 = newf; addrconf_disable_change(net, newf); } else if ((!*p) ^ (!old)) dev_disable_change((struct inet6_dev *)table->extra1); rtnl_unlock(); return 0; } static int addrconf_sysctl_disable(ctl_table *ctl, int write, struct file * filp, void __user *buffer, size_t *lenp, loff_t *ppos) { int *valp = ctl->data; int val = *valp; int ret; ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos); if (write) ret = addrconf_disable_ipv6(ctl, valp, val); return ret; } |
1da177e4c Linux-2.6.12-rc2 |
3952 3953 3954 |
static struct addrconf_sysctl_table { struct ctl_table_header *sysctl_header; |
f6a07b293 [IPV6] ADDRCONF: ... |
3955 |
ctl_table addrconf_vars[DEVCONF_MAX+1]; |
1dab62226 [IPV6]: Use ctl p... |
3956 |
char *dev_name; |
ab32ea5d8 [NET/IPV4/IPV6]: ... |
3957 |
} addrconf_sysctl __read_mostly = { |
1da177e4c Linux-2.6.12-rc2 |
3958 3959 |
.sysctl_header = NULL, .addrconf_vars = { |
1ab1457c4 [NET] IPV6: Fix w... |
3960 |
{ |
1da177e4c Linux-2.6.12-rc2 |
3961 3962 |
.ctl_name = NET_IPV6_FORWARDING, .procname = "forwarding", |
1ab1457c4 [NET] IPV6: Fix w... |
3963 |
.data = &ipv6_devconf.forwarding, |
1da177e4c Linux-2.6.12-rc2 |
3964 3965 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
3966 3967 |
.proc_handler = addrconf_sysctl_forward, .strategy = addrconf_sysctl_forward_strategy, |
1da177e4c Linux-2.6.12-rc2 |
3968 3969 3970 3971 |
}, { .ctl_name = NET_IPV6_HOP_LIMIT, .procname = "hop_limit", |
1ab1457c4 [NET] IPV6: Fix w... |
3972 |
.data = &ipv6_devconf.hop_limit, |
1da177e4c Linux-2.6.12-rc2 |
3973 3974 3975 3976 3977 3978 3979 3980 |
.maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec, }, { .ctl_name = NET_IPV6_MTU, .procname = "mtu", .data = &ipv6_devconf.mtu6, |
1ab1457c4 [NET] IPV6: Fix w... |
3981 |
.maxlen = sizeof(int), |
1da177e4c Linux-2.6.12-rc2 |
3982 |
.mode = 0644, |
6d9f239a1 net: '&' redux |
3983 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
3984 3985 3986 3987 |
}, { .ctl_name = NET_IPV6_ACCEPT_RA, .procname = "accept_ra", |
1ab1457c4 [NET] IPV6: Fix w... |
3988 |
.data = &ipv6_devconf.accept_ra, |
1da177e4c Linux-2.6.12-rc2 |
3989 3990 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
3991 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
3992 3993 3994 3995 |
}, { .ctl_name = NET_IPV6_ACCEPT_REDIRECTS, .procname = "accept_redirects", |
1ab1457c4 [NET] IPV6: Fix w... |
3996 |
.data = &ipv6_devconf.accept_redirects, |
1da177e4c Linux-2.6.12-rc2 |
3997 3998 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
3999 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
4000 4001 4002 4003 |
}, { .ctl_name = NET_IPV6_AUTOCONF, .procname = "autoconf", |
1ab1457c4 [NET] IPV6: Fix w... |
4004 |
.data = &ipv6_devconf.autoconf, |
1da177e4c Linux-2.6.12-rc2 |
4005 4006 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4007 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
4008 4009 4010 4011 |
}, { .ctl_name = NET_IPV6_DAD_TRANSMITS, .procname = "dad_transmits", |
1ab1457c4 [NET] IPV6: Fix w... |
4012 |
.data = &ipv6_devconf.dad_transmits, |
1da177e4c Linux-2.6.12-rc2 |
4013 4014 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4015 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
4016 4017 4018 4019 |
}, { .ctl_name = NET_IPV6_RTR_SOLICITS, .procname = "router_solicitations", |
1ab1457c4 [NET] IPV6: Fix w... |
4020 |
.data = &ipv6_devconf.rtr_solicits, |
1da177e4c Linux-2.6.12-rc2 |
4021 4022 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4023 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
4024 4025 4026 4027 |
}, { .ctl_name = NET_IPV6_RTR_SOLICIT_INTERVAL, .procname = "router_solicitation_interval", |
1ab1457c4 [NET] IPV6: Fix w... |
4028 |
.data = &ipv6_devconf.rtr_solicit_interval, |
1da177e4c Linux-2.6.12-rc2 |
4029 4030 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4031 4032 |
.proc_handler = proc_dointvec_jiffies, .strategy = sysctl_jiffies, |
1da177e4c Linux-2.6.12-rc2 |
4033 4034 4035 4036 |
}, { .ctl_name = NET_IPV6_RTR_SOLICIT_DELAY, .procname = "router_solicitation_delay", |
1ab1457c4 [NET] IPV6: Fix w... |
4037 |
.data = &ipv6_devconf.rtr_solicit_delay, |
1da177e4c Linux-2.6.12-rc2 |
4038 4039 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4040 4041 |
.proc_handler = proc_dointvec_jiffies, .strategy = sysctl_jiffies, |
1da177e4c Linux-2.6.12-rc2 |
4042 4043 4044 4045 |
}, { .ctl_name = NET_IPV6_FORCE_MLD_VERSION, .procname = "force_mld_version", |
1ab1457c4 [NET] IPV6: Fix w... |
4046 |
.data = &ipv6_devconf.force_mld_version, |
1da177e4c Linux-2.6.12-rc2 |
4047 4048 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4049 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
4050 4051 4052 4053 4054 |
}, #ifdef CONFIG_IPV6_PRIVACY { .ctl_name = NET_IPV6_USE_TEMPADDR, .procname = "use_tempaddr", |
1ab1457c4 [NET] IPV6: Fix w... |
4055 |
.data = &ipv6_devconf.use_tempaddr, |
1da177e4c Linux-2.6.12-rc2 |
4056 4057 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4058 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
4059 4060 4061 4062 |
}, { .ctl_name = NET_IPV6_TEMP_VALID_LFT, .procname = "temp_valid_lft", |
1ab1457c4 [NET] IPV6: Fix w... |
4063 |
.data = &ipv6_devconf.temp_valid_lft, |
1da177e4c Linux-2.6.12-rc2 |
4064 4065 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4066 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
4067 4068 4069 4070 |
}, { .ctl_name = NET_IPV6_TEMP_PREFERED_LFT, .procname = "temp_prefered_lft", |
1ab1457c4 [NET] IPV6: Fix w... |
4071 |
.data = &ipv6_devconf.temp_prefered_lft, |
1da177e4c Linux-2.6.12-rc2 |
4072 4073 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4074 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
4075 4076 4077 4078 |
}, { .ctl_name = NET_IPV6_REGEN_MAX_RETRY, .procname = "regen_max_retry", |
1ab1457c4 [NET] IPV6: Fix w... |
4079 |
.data = &ipv6_devconf.regen_max_retry, |
1da177e4c Linux-2.6.12-rc2 |
4080 4081 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4082 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
4083 4084 4085 4086 |
}, { .ctl_name = NET_IPV6_MAX_DESYNC_FACTOR, .procname = "max_desync_factor", |
1ab1457c4 [NET] IPV6: Fix w... |
4087 |
.data = &ipv6_devconf.max_desync_factor, |
1da177e4c Linux-2.6.12-rc2 |
4088 4089 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4090 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
4091 4092 4093 4094 4095 4096 4097 4098 |
}, #endif { .ctl_name = NET_IPV6_MAX_ADDRESSES, .procname = "max_addresses", .data = &ipv6_devconf.max_addresses, .maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4099 |
.proc_handler = proc_dointvec, |
1da177e4c Linux-2.6.12-rc2 |
4100 4101 |
}, { |
65f5c7c11 [IPV6]: ROUTE: Ad... |
4102 4103 |
.ctl_name = NET_IPV6_ACCEPT_RA_DEFRTR, .procname = "accept_ra_defrtr", |
1ab1457c4 [NET] IPV6: Fix w... |
4104 |
.data = &ipv6_devconf.accept_ra_defrtr, |
65f5c7c11 [IPV6]: ROUTE: Ad... |
4105 4106 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4107 |
.proc_handler = proc_dointvec, |
65f5c7c11 [IPV6]: ROUTE: Ad... |
4108 4109 |
}, { |
c4fd30eb1 [IPV6]: ADDRCONF:... |
4110 4111 |
.ctl_name = NET_IPV6_ACCEPT_RA_PINFO, .procname = "accept_ra_pinfo", |
1ab1457c4 [NET] IPV6: Fix w... |
4112 |
.data = &ipv6_devconf.accept_ra_pinfo, |
c4fd30eb1 [IPV6]: ADDRCONF:... |
4113 4114 |
.maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4115 |
.proc_handler = proc_dointvec, |
c4fd30eb1 [IPV6]: ADDRCONF:... |
4116 |
}, |
930d6ff2e [IPV6]: ROUTE: Ad... |
4117 4118 4119 4120 4121 4122 4123 |
#ifdef CONFIG_IPV6_ROUTER_PREF { .ctl_name = NET_IPV6_ACCEPT_RA_RTR_PREF, .procname = "accept_ra_rtr_pref", .data = &ipv6_devconf.accept_ra_rtr_pref, .maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4124 |
.proc_handler = proc_dointvec, |
930d6ff2e [IPV6]: ROUTE: Ad... |
4125 |
}, |
52e163563 [IPV6]: ROUTE: Ad... |
4126 4127 4128 4129 4130 4131 |
{ .ctl_name = NET_IPV6_RTR_PROBE_INTERVAL, .procname = "router_probe_interval", .data = &ipv6_devconf.rtr_probe_interval, .maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4132 4133 |
.proc_handler = proc_dointvec_jiffies, .strategy = sysctl_jiffies, |
52e163563 [IPV6]: ROUTE: Ad... |
4134 |
}, |
fa03ef38e [IPV6]: Fix up so... |
4135 |
#ifdef CONFIG_IPV6_ROUTE_INFO |
09c884d4c [IPV6]: ROUTE: Ad... |
4136 4137 4138 4139 4140 4141 |
{ .ctl_name = NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN, .procname = "accept_ra_rt_info_max_plen", .data = &ipv6_devconf.accept_ra_rt_info_max_plen, .maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4142 |
.proc_handler = proc_dointvec, |
09c884d4c [IPV6]: ROUTE: Ad... |
4143 4144 |
}, #endif |
930d6ff2e [IPV6]: ROUTE: Ad... |
4145 |
#endif |
c4fd30eb1 [IPV6]: ADDRCONF:... |
4146 |
{ |
fbea49e1e [IPV6] NDISC: Add... |
4147 4148 4149 4150 4151 |
.ctl_name = NET_IPV6_PROXY_NDP, .procname = "proxy_ndp", .data = &ipv6_devconf.proxy_ndp, .maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4152 |
.proc_handler = proc_dointvec, |
fbea49e1e [IPV6] NDISC: Add... |
4153 4154 |
}, { |
0bcbc9262 [IPV6]: Disallow ... |
4155 4156 4157 4158 4159 |
.ctl_name = NET_IPV6_ACCEPT_SOURCE_ROUTE, .procname = "accept_source_route", .data = &ipv6_devconf.accept_source_route, .maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4160 |
.proc_handler = proc_dointvec, |
0bcbc9262 [IPV6]: Disallow ... |
4161 |
}, |
95c385b4d [IPV6] ADDRCONF: ... |
4162 4163 4164 4165 4166 4167 4168 |
#ifdef CONFIG_IPV6_OPTIMISTIC_DAD { .ctl_name = CTL_UNNUMBERED, .procname = "optimistic_dad", .data = &ipv6_devconf.optimistic_dad, .maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4169 |
.proc_handler = proc_dointvec, |
95c385b4d [IPV6] ADDRCONF: ... |
4170 4171 4172 |
}, #endif |
7bc570c8b [IPV6] MROUTE: Su... |
4173 4174 4175 4176 4177 4178 |
#ifdef CONFIG_IPV6_MROUTE { .ctl_name = CTL_UNNUMBERED, .procname = "mc_forwarding", .data = &ipv6_devconf.mc_forwarding, .maxlen = sizeof(int), |
a4e6db079 ipv6: Make mc_for... |
4179 |
.mode = 0444, |
6d9f239a1 net: '&' redux |
4180 |
.proc_handler = proc_dointvec, |
7bc570c8b [IPV6] MROUTE: Su... |
4181 4182 |
}, #endif |
0bcbc9262 [IPV6]: Disallow ... |
4183 |
{ |
778d80be5 ipv6: Add disable... |
4184 4185 4186 4187 4188 |
.ctl_name = CTL_UNNUMBERED, .procname = "disable_ipv6", .data = &ipv6_devconf.disable_ipv6, .maxlen = sizeof(int), .mode = 0644, |
56d417b12 IPv6: Add 'autoco... |
4189 4190 |
.proc_handler = addrconf_sysctl_disable, .strategy = sysctl_intvec, |
778d80be5 ipv6: Add disable... |
4191 4192 |
}, { |
1b34be74c ipv6 addrconf: ad... |
4193 4194 4195 4196 4197 |
.ctl_name = CTL_UNNUMBERED, .procname = "accept_dad", .data = &ipv6_devconf.accept_dad, .maxlen = sizeof(int), .mode = 0644, |
6d9f239a1 net: '&' redux |
4198 |
.proc_handler = proc_dointvec, |
1b34be74c ipv6 addrconf: ad... |
4199 4200 |
}, { |
1da177e4c Linux-2.6.12-rc2 |
4201 4202 4203 |
.ctl_name = 0, /* sentinel */ } }, |
1da177e4c Linux-2.6.12-rc2 |
4204 |
}; |
bff16c2f9 [NETNS]: Make the... |
4205 4206 |
static int __addrconf_sysctl_register(struct net *net, char *dev_name, int ctl_name, struct inet6_dev *idev, struct ipv6_devconf *p) |
1da177e4c Linux-2.6.12-rc2 |
4207 4208 |
{ int i; |
1da177e4c Linux-2.6.12-rc2 |
4209 |
struct addrconf_sysctl_table *t; |
1da177e4c Linux-2.6.12-rc2 |
4210 |
|
1dab62226 [IPV6]: Use ctl p... |
4211 4212 4213 4214 4215 4216 4217 4218 4219 |
#define ADDRCONF_CTL_PATH_DEV 3 struct ctl_path addrconf_ctl_path[] = { { .procname = "net", .ctl_name = CTL_NET, }, { .procname = "ipv6", .ctl_name = NET_IPV6, }, { .procname = "conf", .ctl_name = NET_IPV6_CONF, }, { /* to be set */ }, { }, }; |
af879cc70 [IPV6]: Use kmemdup |
4220 |
t = kmemdup(&addrconf_sysctl, sizeof(*t), GFP_KERNEL); |
1da177e4c Linux-2.6.12-rc2 |
4221 |
if (t == NULL) |
f68635e62 [IPV6]: Cleanup t... |
4222 |
goto out; |
1da177e4c Linux-2.6.12-rc2 |
4223 4224 |
for (i=0; t->addrconf_vars[i].data; i++) { t->addrconf_vars[i].data += (char*)p - (char*)&ipv6_devconf; |
1da177e4c Linux-2.6.12-rc2 |
4225 |
t->addrconf_vars[i].extra1 = idev; /* embedded; no ref */ |
bff16c2f9 [NETNS]: Make the... |
4226 |
t->addrconf_vars[i].extra2 = net; |
1da177e4c Linux-2.6.12-rc2 |
4227 |
} |
1da177e4c Linux-2.6.12-rc2 |
4228 |
|
1ab1457c4 [NET] IPV6: Fix w... |
4229 4230 |
/* * Make a copy of dev_name, because '.procname' is regarded as const |
1da177e4c Linux-2.6.12-rc2 |
4231 4232 |
* by sysctl and we wouldn't want anyone to change it under our feet * (see SIOCSIFNAME). |
1ab1457c4 [NET] IPV6: Fix w... |
4233 |
*/ |
1dab62226 [IPV6]: Use ctl p... |
4234 4235 |
t->dev_name = kstrdup(dev_name, GFP_KERNEL); if (!t->dev_name) |
f68635e62 [IPV6]: Cleanup t... |
4236 |
goto free; |
1da177e4c Linux-2.6.12-rc2 |
4237 |
|
1dab62226 [IPV6]: Use ctl p... |
4238 4239 |
addrconf_ctl_path[ADDRCONF_CTL_PATH_DEV].procname = t->dev_name; addrconf_ctl_path[ADDRCONF_CTL_PATH_DEV].ctl_name = ctl_name; |
1da177e4c Linux-2.6.12-rc2 |
4240 |
|
bff16c2f9 [NETNS]: Make the... |
4241 |
t->sysctl_header = register_net_sysctl_table(net, addrconf_ctl_path, |
1dab62226 [IPV6]: Use ctl p... |
4242 |
t->addrconf_vars); |
1da177e4c Linux-2.6.12-rc2 |
4243 4244 |
if (t->sysctl_header == NULL) goto free_procname; |
f68635e62 [IPV6]: Cleanup t... |
4245 4246 |
p->sysctl = t; |
958973122 [NETNS]: Make the... |
4247 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
4248 |
|
f68635e62 [IPV6]: Cleanup t... |
4249 |
free_procname: |
1dab62226 [IPV6]: Use ctl p... |
4250 |
kfree(t->dev_name); |
f68635e62 [IPV6]: Cleanup t... |
4251 |
free: |
1da177e4c Linux-2.6.12-rc2 |
4252 |
kfree(t); |
f68635e62 [IPV6]: Cleanup t... |
4253 |
out: |
958973122 [NETNS]: Make the... |
4254 |
return -ENOBUFS; |
1da177e4c Linux-2.6.12-rc2 |
4255 |
} |
408c4768c [NETNS]: Clean ou... |
4256 4257 4258 4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 |
static void __addrconf_sysctl_unregister(struct ipv6_devconf *p) { struct addrconf_sysctl_table *t; if (p->sysctl == NULL) return; t = p->sysctl; p->sysctl = NULL; unregister_sysctl_table(t->sysctl_header); kfree(t->dev_name); kfree(t); } |
f52295a9c [IPV6]: Unify and... |
4269 4270 |
static void addrconf_sysctl_register(struct inet6_dev *idev) { |
408c4768c [NETNS]: Clean ou... |
4271 4272 4273 |
neigh_sysctl_register(idev->dev, idev->nd_parms, NET_IPV6, NET_IPV6_NEIGH, "ipv6", &ndisc_ifinfo_sysctl_change, |
0686caa35 ndisc: Add missin... |
4274 |
ndisc_ifinfo_sysctl_strategy); |
c346dca10 [NET] NETNS: Omit... |
4275 |
__addrconf_sysctl_register(dev_net(idev->dev), idev->dev->name, |
bff16c2f9 [NETNS]: Make the... |
4276 |
idev->dev->ifindex, idev, &idev->cnf); |
f52295a9c [IPV6]: Unify and... |
4277 |
} |
408c4768c [NETNS]: Clean ou... |
4278 |
static void addrconf_sysctl_unregister(struct inet6_dev *idev) |
1da177e4c Linux-2.6.12-rc2 |
4279 |
{ |
408c4768c [NETNS]: Clean ou... |
4280 4281 |
__addrconf_sysctl_unregister(&idev->cnf); neigh_sysctl_unregister(idev->nd_parms); |
1da177e4c Linux-2.6.12-rc2 |
4282 4283 4284 4285 |
} #endif |
e0da5a480 [NETNS]: Create i... |
4286 4287 4288 4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299 4300 4301 4302 |
static int addrconf_init_net(struct net *net) { int err; struct ipv6_devconf *all, *dflt; err = -ENOMEM; all = &ipv6_devconf; dflt = &ipv6_devconf_dflt; if (net != &init_net) { all = kmemdup(all, sizeof(ipv6_devconf), GFP_KERNEL); if (all == NULL) goto err_alloc_all; dflt = kmemdup(dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL); if (dflt == NULL) goto err_alloc_dflt; |
56d417b12 IPv6: Add 'autoco... |
4303 4304 4305 4306 |
} else { /* these will be inherited by all namespaces */ dflt->autoconf = ipv6_defaults.autoconf; dflt->disable_ipv6 = ipv6_defaults.disable_ipv6; |
e0da5a480 [NETNS]: Create i... |
4307 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 |
} net->ipv6.devconf_all = all; net->ipv6.devconf_dflt = dflt; #ifdef CONFIG_SYSCTL err = __addrconf_sysctl_register(net, "all", NET_PROTO_CONF_ALL, NULL, all); if (err < 0) goto err_reg_all; err = __addrconf_sysctl_register(net, "default", NET_PROTO_CONF_DEFAULT, NULL, dflt); if (err < 0) goto err_reg_dflt; #endif return 0; #ifdef CONFIG_SYSCTL err_reg_dflt: __addrconf_sysctl_unregister(all); err_reg_all: kfree(dflt); #endif err_alloc_dflt: kfree(all); err_alloc_all: return err; } static void addrconf_exit_net(struct net *net) { #ifdef CONFIG_SYSCTL __addrconf_sysctl_unregister(net->ipv6.devconf_dflt); __addrconf_sysctl_unregister(net->ipv6.devconf_all); #endif if (net != &init_net) { kfree(net->ipv6.devconf_dflt); kfree(net->ipv6.devconf_all); } } static struct pernet_operations addrconf_ops = { .init = addrconf_init_net, .exit = addrconf_exit_net, }; |
1da177e4c Linux-2.6.12-rc2 |
4353 4354 4355 4356 4357 4358 |
/* * Device notifier */ int register_inet6addr_notifier(struct notifier_block *nb) { |
1ab1457c4 [NET] IPV6: Fix w... |
4359 |
return atomic_notifier_chain_register(&inet6addr_chain, nb); |
1da177e4c Linux-2.6.12-rc2 |
4360 |
} |
7159039a1 [IPV6]: Decentral... |
4361 |
EXPORT_SYMBOL(register_inet6addr_notifier); |
1da177e4c Linux-2.6.12-rc2 |
4362 4363 |
int unregister_inet6addr_notifier(struct notifier_block *nb) { |
1ab1457c4 [NET] IPV6: Fix w... |
4364 |
return atomic_notifier_chain_unregister(&inet6addr_chain,nb); |
1da177e4c Linux-2.6.12-rc2 |
4365 |
} |
7159039a1 [IPV6]: Decentral... |
4366 |
EXPORT_SYMBOL(unregister_inet6addr_notifier); |
1da177e4c Linux-2.6.12-rc2 |
4367 4368 4369 4370 4371 4372 |
/* * Init / cleanup code */ int __init addrconf_init(void) { |
2a8cc6c89 [IPV6] ADDRCONF: ... |
4373 4374 4375 4376 4377 4378 4379 4380 |
int err; if ((err = ipv6_addr_label_init()) < 0) { printk(KERN_CRIT "IPv6 Addrconf: cannot initialize default policy table: %d. ", err); return err; } |
1da177e4c Linux-2.6.12-rc2 |
4381 |
|
e0da5a480 [NETNS]: Create i... |
4382 |
register_pernet_subsys(&addrconf_ops); |
1da177e4c Linux-2.6.12-rc2 |
4383 4384 4385 4386 4387 4388 4389 4390 4391 4392 4393 4394 4395 4396 4397 4398 4399 4400 4401 |
/* The addrconf netdev notifier requires that loopback_dev * has it's ipv6 private information allocated and setup * before it can bring up and give link-local addresses * to other devices which are up. * * Unfortunately, loopback_dev is not necessarily the first * entry in the global dev_base list of net devices. In fact, * it is likely to be the very last entry on that list. * So this causes the notifier registry below to try and * give link-local addresses to all devices besides loopback_dev * first, then loopback_dev, which cases all the non-loopback_dev * devices to fail to get a link-local address. * * So, as a temporary fix, allocate the ipv6 structure for * loopback_dev first by hand. * Longer term, all of the dependencies ipv6 has upon the loopback * device and it being up should be removed. */ rtnl_lock(); |
2774c7aba [NET]: Make the l... |
4402 |
if (!ipv6_add_dev(init_net.loopback_dev)) |
1da177e4c Linux-2.6.12-rc2 |
4403 4404 4405 |
err = -ENOMEM; rtnl_unlock(); if (err) |
e0da5a480 [NETNS]: Create i... |
4406 |
goto errlo; |
1da177e4c Linux-2.6.12-rc2 |
4407 4408 |
register_netdevice_notifier(&ipv6_dev_notf); |
1da177e4c Linux-2.6.12-rc2 |
4409 |
addrconf_verify(0); |
c127ea2c4 [IPv6]: Use rtnl ... |
4410 4411 4412 4413 4414 4415 4416 4417 4418 4419 4420 |
err = __rtnl_register(PF_INET6, RTM_GETLINK, NULL, inet6_dump_ifinfo); if (err < 0) goto errout; /* Only the first call to __rtnl_register can fail */ __rtnl_register(PF_INET6, RTM_NEWADDR, inet6_rtm_newaddr, NULL); __rtnl_register(PF_INET6, RTM_DELADDR, inet6_rtm_deladdr, NULL); __rtnl_register(PF_INET6, RTM_GETADDR, inet6_rtm_getaddr, inet6_dump_ifaddr); __rtnl_register(PF_INET6, RTM_GETMULTICAST, NULL, inet6_dump_ifmcaddr); __rtnl_register(PF_INET6, RTM_GETANYCAST, NULL, inet6_dump_ifacaddr); |
2a8cc6c89 [IPV6] ADDRCONF: ... |
4421 |
ipv6_addr_label_rtnl_register(); |
1da177e4c Linux-2.6.12-rc2 |
4422 |
return 0; |
c127ea2c4 [IPv6]: Use rtnl ... |
4423 4424 |
errout: unregister_netdevice_notifier(&ipv6_dev_notf); |
e0da5a480 [NETNS]: Create i... |
4425 4426 |
errlo: unregister_pernet_subsys(&addrconf_ops); |
c127ea2c4 [IPv6]: Use rtnl ... |
4427 4428 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
4429 |
} |
09f7709f4 [IPV6]: fix secti... |
4430 |
void addrconf_cleanup(void) |
1da177e4c Linux-2.6.12-rc2 |
4431 |
{ |
1ab1457c4 [NET] IPV6: Fix w... |
4432 |
struct inet6_ifaddr *ifa; |
176c39af2 netns: fix addrco... |
4433 |
struct net_device *dev; |
1da177e4c Linux-2.6.12-rc2 |
4434 4435 4436 |
int i; unregister_netdevice_notifier(&ipv6_dev_notf); |
e0da5a480 [NETNS]: Create i... |
4437 |
unregister_pernet_subsys(&addrconf_ops); |
1da177e4c Linux-2.6.12-rc2 |
4438 4439 |
rtnl_lock(); |
176c39af2 netns: fix addrco... |
4440 4441 4442 4443 4444 4445 4446 |
/* clean dev list */ for_each_netdev(&init_net, dev) { if (__in6_dev_get(dev) == NULL) continue; addrconf_ifdown(dev, 1); } addrconf_ifdown(init_net.loopback_dev, 2); |
1da177e4c Linux-2.6.12-rc2 |
4447 |
/* |
1da177e4c Linux-2.6.12-rc2 |
4448 4449 |
* Check hash table. */ |
1da177e4c Linux-2.6.12-rc2 |
4450 4451 4452 4453 4454 4455 4456 4457 4458 4459 4460 4461 4462 4463 4464 4465 4466 |
write_lock_bh(&addrconf_hash_lock); for (i=0; i < IN6_ADDR_HSIZE; i++) { for (ifa=inet6_addr_lst[i]; ifa; ) { struct inet6_ifaddr *bifa; bifa = ifa; ifa = ifa->lst_next; printk(KERN_DEBUG "bug: IPv6 address leakage detected: ifa=%p ", bifa); /* Do not free it; something is wrong. Now we can investigate it with debugger. */ } } write_unlock_bh(&addrconf_hash_lock); del_timer(&addr_chk_timer); |
1da177e4c Linux-2.6.12-rc2 |
4467 |
rtnl_unlock(); |
1da177e4c Linux-2.6.12-rc2 |
4468 |
} |