diff options
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/Kconfig | 18 | ||||
| -rw-r--r-- | net/ipv6/addrconf.c | 41 |
2 files changed, 3 insertions, 56 deletions
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig index e1a8d903e366..d92e5586783e 100644 --- a/net/ipv6/Kconfig +++ b/net/ipv6/Kconfig @@ -21,24 +21,6 @@ menuconfig IPV6 if IPV6 -config IPV6_PRIVACY - bool "IPv6: Privacy Extensions (RFC 3041) support" - ---help--- - Privacy Extensions for Stateless Address Autoconfiguration in IPv6 - support. With this option, additional periodically-altered - pseudo-random global-scope unicast address(es) will be assigned to - your interface(s). - - We use our standard pseudo-random algorithm to generate the - randomized interface identifier, instead of one described in RFC 3041. - - By default the kernel does not generate temporary addresses. - To use temporary addresses, do - - echo 2 >/proc/sys/net/ipv6/conf/all/use_tempaddr - - See <file:Documentation/networking/ip-sysctl.txt> for details. - config IPV6_ROUTER_PREF bool "IPv6: Router Preference (RFC 4191) support" ---help--- diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index cd3fb301da38..542d09561ed6 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -83,11 +83,7 @@ #include <linux/if_tunnel.h> #include <linux/rtnetlink.h> #include <linux/netconf.h> - -#ifdef CONFIG_IPV6_PRIVACY #include <linux/random.h> -#endif - #include <linux/uaccess.h> #include <asm/unaligned.h> @@ -124,11 +120,9 @@ static inline void addrconf_sysctl_unregister(struct inet6_dev *idev) } #endif -#ifdef CONFIG_IPV6_PRIVACY static void __ipv6_regen_rndid(struct inet6_dev *idev); static void __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpaddr); static void ipv6_regen_rndid(unsigned long data); -#endif static int ipv6_generate_eui64(u8 *eui, struct net_device *dev); static int ipv6_count_addresses(struct inet6_dev *idev); @@ -183,13 +177,11 @@ static struct ipv6_devconf ipv6_devconf __read_mostly = { .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, .accept_ra_defrtr = 1, .accept_ra_pinfo = 1, @@ -221,13 +213,11 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = { .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, .accept_ra_defrtr = 1, .accept_ra_pinfo = 1, @@ -371,7 +361,6 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev) } #endif -#ifdef CONFIG_IPV6_PRIVACY INIT_LIST_HEAD(&ndev->tempaddr_list); setup_timer(&ndev->regen_timer, ipv6_regen_rndid, (unsigned long)ndev); if ((dev->flags&IFF_LOOPBACK) || @@ -384,7 +373,7 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev) in6_dev_hold(ndev); ipv6_regen_rndid((unsigned long) ndev); } -#endif + ndev->token = in6addr_any; if (netif_running(dev) && addrconf_qdisc_ok(dev)) @@ -865,12 +854,10 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr, /* Add to inet6_dev unicast addr list. */ ipv6_link_dev_addr(idev, ifa); -#ifdef CONFIG_IPV6_PRIVACY if (ifa->flags&IFA_F_TEMPORARY) { list_add(&ifa->tmp_list, &idev->tempaddr_list); in6_ifa_hold(ifa); } -#endif in6_ifa_hold(ifa); write_unlock(&idev->lock); @@ -913,7 +900,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) spin_unlock_bh(&addrconf_hash_lock); write_lock_bh(&idev->lock); -#ifdef CONFIG_IPV6_PRIVACY + if (ifp->flags&IFA_F_TEMPORARY) { list_del(&ifp->tmp_list); if (ifp->ifpub) { @@ -922,7 +909,6 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp) } __in6_ifa_put(ifp); } -#endif list_for_each_entry_safe(ifa, ifn, &idev->addr_list, if_list) { if (ifa == ifp) { @@ -1013,7 +999,6 @@ out: 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; @@ -1116,7 +1101,6 @@ retry: out: return ret; } -#endif /* * Choose an appropriate source address (RFC3484) @@ -1131,9 +1115,7 @@ enum { #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 @@ -1247,7 +1229,6 @@ static int ipv6_get_saddr_eval(struct net *net, &score->ifa->addr, score->addr_type, score->ifa->idev->dev->ifindex) == dst->label; break; -#ifdef CONFIG_IPV6_PRIVACY case IPV6_SADDR_RULE_PRIVACY: { /* Rule 7: Prefer public address @@ -1259,7 +1240,6 @@ static int ipv6_get_saddr_eval(struct net *net, ret = (!(score->ifa->flags & IFA_F_TEMPORARY)) ^ preftmp; break; } -#endif case IPV6_SADDR_RULE_ORCHID: /* Rule 8-: Prefer ORCHID vs ORCHID or * non-ORCHID vs non-ORCHID @@ -1588,7 +1568,6 @@ static void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed) if (dad_failed) ipv6_ifa_notify(0, ifp); in6_ifa_put(ifp); -#ifdef CONFIG_IPV6_PRIVACY } else if (ifp->flags&IFA_F_TEMPORARY) { struct inet6_ifaddr *ifpub; spin_lock_bh(&ifp->lock); @@ -1602,7 +1581,6 @@ static void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed) spin_unlock_bh(&ifp->lock); } ipv6_del_addr(ifp); -#endif } else ipv6_del_addr(ifp); } @@ -1851,7 +1829,6 @@ static int ipv6_inherit_eui64(u8 *eui, struct inet6_dev *idev) return err; } -#ifdef CONFIG_IPV6_PRIVACY /* (re)generation of randomized interface identifier (RFC 3041 3.2, 3.5) */ static void __ipv6_regen_rndid(struct inet6_dev *idev) { @@ -1919,7 +1896,6 @@ static void __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmp if (tmpaddr && memcmp(idev->rndid, &tmpaddr->s6_addr[8], 8) == 0) __ipv6_regen_rndid(idev); } -#endif /* * Add prefix route. @@ -2207,9 +2183,7 @@ ok: 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) */ @@ -2250,7 +2224,6 @@ ok: } else spin_unlock(&ifp->lock); -#ifdef CONFIG_IPV6_PRIVACY read_lock_bh(&in6_dev->lock); /* update all temporary addresses in the list */ list_for_each_entry(ift, &in6_dev->tempaddr_list, @@ -2315,7 +2288,7 @@ ok: } else { read_unlock_bh(&in6_dev->lock); } -#endif + in6_ifa_put(ifp); addrconf_verify(0); } @@ -2995,7 +2968,6 @@ static int addrconf_ifdown(struct net_device *dev, int how) if (!how) idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY); -#ifdef CONFIG_IPV6_PRIVACY if (how && del_timer(&idev->regen_timer)) in6_dev_put(idev); @@ -3015,7 +2987,6 @@ static int addrconf_ifdown(struct net_device *dev, int how) in6_ifa_put(ifa); write_lock_bh(&idev->lock); } -#endif while (!list_empty(&idev->addr_list)) { ifa = list_first_entry(&idev->addr_list, @@ -3528,7 +3499,6 @@ restart: in6_ifa_put(ifp); goto restart; } -#ifdef CONFIG_IPV6_PRIVACY } else if ((ifp->flags&IFA_F_TEMPORARY) && !(ifp->flags&IFA_F_TENTATIVE)) { unsigned long regen_advance = ifp->idev->cnf.regen_max_retry * @@ -3556,7 +3526,6 @@ 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)) @@ -4128,13 +4097,11 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf, jiffies_to_msecs(cnf->mldv1_unsolicited_report_interval); array[DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL] = jiffies_to_msecs(cnf->mldv2_unsolicited_report_interval); -#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; array[DEVCONF_ACCEPT_RA_DEFRTR] = cnf->accept_ra_defrtr; array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo; @@ -4828,7 +4795,6 @@ static struct addrconf_sysctl_table .mode = 0644, .proc_handler = proc_dointvec_ms_jiffies, }, -#ifdef CONFIG_IPV6_PRIVACY { .procname = "use_tempaddr", .data = &ipv6_devconf.use_tempaddr, @@ -4864,7 +4830,6 @@ static struct addrconf_sysctl_table .mode = 0644, .proc_handler = proc_dointvec, }, -#endif { .procname = "max_addresses", .data = &ipv6_devconf.max_addresses, |