addrconf.c (43d93947a54cf9323198a3a37eaf3ec14adb23e1) addrconf.c (5d9efa7ee99eed58388f186c13cf2e2a87e9ceb4)
1/*
2 * IPv6 Address [auto]configuration
3 * Linux INET6 implementation
4 *
5 * Authors:
6 * Pedro Roque <roque@di.fc.ul.pt>
7 * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
8 *

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78#include <net/addrconf.h>
79#include <net/tcp.h>
80#include <net/ip.h>
81#include <net/netlink.h>
82#include <net/pkt_sched.h>
83#include <linux/if_tunnel.h>
84#include <linux/rtnetlink.h>
85#include <linux/netconf.h>
1/*
2 * IPv6 Address [auto]configuration
3 * Linux INET6 implementation
4 *
5 * Authors:
6 * Pedro Roque <roque@di.fc.ul.pt>
7 * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
8 *

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78#include <net/addrconf.h>
79#include <net/tcp.h>
80#include <net/ip.h>
81#include <net/netlink.h>
82#include <net/pkt_sched.h>
83#include <linux/if_tunnel.h>
84#include <linux/rtnetlink.h>
85#include <linux/netconf.h>
86
87#ifdef CONFIG_IPV6_PRIVACY
88#include <linux/random.h>
86#include <linux/random.h>
89#endif
90
91#include <linux/uaccess.h>
92#include <asm/unaligned.h>
93
94#include <linux/proc_fs.h>
95#include <linux/seq_file.h>
96#include <linux/export.h>
97
98/* Set to 3 to get tracing... */

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119{
120}
121
122static inline void addrconf_sysctl_unregister(struct inet6_dev *idev)
123{
124}
125#endif
126
87#include <linux/uaccess.h>
88#include <asm/unaligned.h>
89
90#include <linux/proc_fs.h>
91#include <linux/seq_file.h>
92#include <linux/export.h>
93
94/* Set to 3 to get tracing... */

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115{
116}
117
118static inline void addrconf_sysctl_unregister(struct inet6_dev *idev)
119{
120}
121#endif
122
127#ifdef CONFIG_IPV6_PRIVACY
128static void __ipv6_regen_rndid(struct inet6_dev *idev);
129static void __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpaddr);
130static void ipv6_regen_rndid(unsigned long data);
123static void __ipv6_regen_rndid(struct inet6_dev *idev);
124static void __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpaddr);
125static void ipv6_regen_rndid(unsigned long data);
131#endif
132
133static int ipv6_generate_eui64(u8 *eui, struct net_device *dev);
134static int ipv6_count_addresses(struct inet6_dev *idev);
135
136/*
137 * Configured unicast address hash table
138 */
139static struct hlist_head inet6_addr_lst[IN6_ADDR_HSIZE];

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178 .autoconf = 1,
179 .force_mld_version = 0,
180 .mldv1_unsolicited_report_interval = 10 * HZ,
181 .mldv2_unsolicited_report_interval = HZ,
182 .dad_transmits = 1,
183 .rtr_solicits = MAX_RTR_SOLICITATIONS,
184 .rtr_solicit_interval = RTR_SOLICITATION_INTERVAL,
185 .rtr_solicit_delay = MAX_RTR_SOLICITATION_DELAY,
126
127static int ipv6_generate_eui64(u8 *eui, struct net_device *dev);
128static int ipv6_count_addresses(struct inet6_dev *idev);
129
130/*
131 * Configured unicast address hash table
132 */
133static struct hlist_head inet6_addr_lst[IN6_ADDR_HSIZE];

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172 .autoconf = 1,
173 .force_mld_version = 0,
174 .mldv1_unsolicited_report_interval = 10 * HZ,
175 .mldv2_unsolicited_report_interval = HZ,
176 .dad_transmits = 1,
177 .rtr_solicits = MAX_RTR_SOLICITATIONS,
178 .rtr_solicit_interval = RTR_SOLICITATION_INTERVAL,
179 .rtr_solicit_delay = MAX_RTR_SOLICITATION_DELAY,
186#ifdef CONFIG_IPV6_PRIVACY
187 .use_tempaddr = 0,
188 .temp_valid_lft = TEMP_VALID_LIFETIME,
189 .temp_prefered_lft = TEMP_PREFERRED_LIFETIME,
190 .regen_max_retry = REGEN_MAX_RETRY,
191 .max_desync_factor = MAX_DESYNC_FACTOR,
180 .use_tempaddr = 0,
181 .temp_valid_lft = TEMP_VALID_LIFETIME,
182 .temp_prefered_lft = TEMP_PREFERRED_LIFETIME,
183 .regen_max_retry = REGEN_MAX_RETRY,
184 .max_desync_factor = MAX_DESYNC_FACTOR,
192#endif
193 .max_addresses = IPV6_MAX_ADDRESSES,
194 .accept_ra_defrtr = 1,
195 .accept_ra_pinfo = 1,
196#ifdef CONFIG_IPV6_ROUTER_PREF
197 .accept_ra_rtr_pref = 1,
198 .rtr_probe_interval = 60 * HZ,
199#ifdef CONFIG_IPV6_ROUTE_INFO
200 .accept_ra_rt_info_max_plen = 0,

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216 .autoconf = 1,
217 .force_mld_version = 0,
218 .mldv1_unsolicited_report_interval = 10 * HZ,
219 .mldv2_unsolicited_report_interval = HZ,
220 .dad_transmits = 1,
221 .rtr_solicits = MAX_RTR_SOLICITATIONS,
222 .rtr_solicit_interval = RTR_SOLICITATION_INTERVAL,
223 .rtr_solicit_delay = MAX_RTR_SOLICITATION_DELAY,
185 .max_addresses = IPV6_MAX_ADDRESSES,
186 .accept_ra_defrtr = 1,
187 .accept_ra_pinfo = 1,
188#ifdef CONFIG_IPV6_ROUTER_PREF
189 .accept_ra_rtr_pref = 1,
190 .rtr_probe_interval = 60 * HZ,
191#ifdef CONFIG_IPV6_ROUTE_INFO
192 .accept_ra_rt_info_max_plen = 0,

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208 .autoconf = 1,
209 .force_mld_version = 0,
210 .mldv1_unsolicited_report_interval = 10 * HZ,
211 .mldv2_unsolicited_report_interval = HZ,
212 .dad_transmits = 1,
213 .rtr_solicits = MAX_RTR_SOLICITATIONS,
214 .rtr_solicit_interval = RTR_SOLICITATION_INTERVAL,
215 .rtr_solicit_delay = MAX_RTR_SOLICITATION_DELAY,
224#ifdef CONFIG_IPV6_PRIVACY
225 .use_tempaddr = 0,
226 .temp_valid_lft = TEMP_VALID_LIFETIME,
227 .temp_prefered_lft = TEMP_PREFERRED_LIFETIME,
228 .regen_max_retry = REGEN_MAX_RETRY,
229 .max_desync_factor = MAX_DESYNC_FACTOR,
216 .use_tempaddr = 0,
217 .temp_valid_lft = TEMP_VALID_LIFETIME,
218 .temp_prefered_lft = TEMP_PREFERRED_LIFETIME,
219 .regen_max_retry = REGEN_MAX_RETRY,
220 .max_desync_factor = MAX_DESYNC_FACTOR,
230#endif
231 .max_addresses = IPV6_MAX_ADDRESSES,
232 .accept_ra_defrtr = 1,
233 .accept_ra_pinfo = 1,
234#ifdef CONFIG_IPV6_ROUTER_PREF
235 .accept_ra_rtr_pref = 1,
236 .rtr_probe_interval = 60 * HZ,
237#ifdef CONFIG_IPV6_ROUTE_INFO
238 .accept_ra_rt_info_max_plen = 0,

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366
367#if IS_ENABLED(CONFIG_IPV6_SIT)
368 if (dev->type == ARPHRD_SIT && (dev->priv_flags & IFF_ISATAP)) {
369 pr_info("%s: Disabled Multicast RS\n", dev->name);
370 ndev->cnf.rtr_solicits = 0;
371 }
372#endif
373
221 .max_addresses = IPV6_MAX_ADDRESSES,
222 .accept_ra_defrtr = 1,
223 .accept_ra_pinfo = 1,
224#ifdef CONFIG_IPV6_ROUTER_PREF
225 .accept_ra_rtr_pref = 1,
226 .rtr_probe_interval = 60 * HZ,
227#ifdef CONFIG_IPV6_ROUTE_INFO
228 .accept_ra_rt_info_max_plen = 0,

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356
357#if IS_ENABLED(CONFIG_IPV6_SIT)
358 if (dev->type == ARPHRD_SIT && (dev->priv_flags & IFF_ISATAP)) {
359 pr_info("%s: Disabled Multicast RS\n", dev->name);
360 ndev->cnf.rtr_solicits = 0;
361 }
362#endif
363
374#ifdef CONFIG_IPV6_PRIVACY
375 INIT_LIST_HEAD(&ndev->tempaddr_list);
376 setup_timer(&ndev->regen_timer, ipv6_regen_rndid, (unsigned long)ndev);
377 if ((dev->flags&IFF_LOOPBACK) ||
378 dev->type == ARPHRD_TUNNEL ||
379 dev->type == ARPHRD_TUNNEL6 ||
380 dev->type == ARPHRD_SIT ||
381 dev->type == ARPHRD_NONE) {
382 ndev->cnf.use_tempaddr = -1;
383 } else {
384 in6_dev_hold(ndev);
385 ipv6_regen_rndid((unsigned long) ndev);
386 }
364 INIT_LIST_HEAD(&ndev->tempaddr_list);
365 setup_timer(&ndev->regen_timer, ipv6_regen_rndid, (unsigned long)ndev);
366 if ((dev->flags&IFF_LOOPBACK) ||
367 dev->type == ARPHRD_TUNNEL ||
368 dev->type == ARPHRD_TUNNEL6 ||
369 dev->type == ARPHRD_SIT ||
370 dev->type == ARPHRD_NONE) {
371 ndev->cnf.use_tempaddr = -1;
372 } else {
373 in6_dev_hold(ndev);
374 ipv6_regen_rndid((unsigned long) ndev);
375 }
387#endif
376
388 ndev->token = in6addr_any;
389
390 if (netif_running(dev) && addrconf_qdisc_ok(dev))
391 ndev->if_flags |= IF_READY;
392
393 ipv6_mc_init_dev(ndev);
394 ndev->tstamp = jiffies;
395 addrconf_sysctl_register(ndev);

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860
861 hlist_add_head_rcu(&ifa->addr_lst, &inet6_addr_lst[hash]);
862 spin_unlock(&addrconf_hash_lock);
863
864 write_lock(&idev->lock);
865 /* Add to inet6_dev unicast addr list. */
866 ipv6_link_dev_addr(idev, ifa);
867
377 ndev->token = in6addr_any;
378
379 if (netif_running(dev) && addrconf_qdisc_ok(dev))
380 ndev->if_flags |= IF_READY;
381
382 ipv6_mc_init_dev(ndev);
383 ndev->tstamp = jiffies;
384 addrconf_sysctl_register(ndev);

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849
850 hlist_add_head_rcu(&ifa->addr_lst, &inet6_addr_lst[hash]);
851 spin_unlock(&addrconf_hash_lock);
852
853 write_lock(&idev->lock);
854 /* Add to inet6_dev unicast addr list. */
855 ipv6_link_dev_addr(idev, ifa);
856
868#ifdef CONFIG_IPV6_PRIVACY
869 if (ifa->flags&IFA_F_TEMPORARY) {
870 list_add(&ifa->tmp_list, &idev->tempaddr_list);
871 in6_ifa_hold(ifa);
872 }
857 if (ifa->flags&IFA_F_TEMPORARY) {
858 list_add(&ifa->tmp_list, &idev->tempaddr_list);
859 in6_ifa_hold(ifa);
860 }
873#endif
874
875 in6_ifa_hold(ifa);
876 write_unlock(&idev->lock);
877out2:
878 rcu_read_unlock_bh();
879
880 if (likely(err == 0))
881 inet6addr_notifier_call_chain(NETDEV_UP, ifa);

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908 if (state == INET6_IFADDR_STATE_DEAD)
909 goto out;
910
911 spin_lock_bh(&addrconf_hash_lock);
912 hlist_del_init_rcu(&ifp->addr_lst);
913 spin_unlock_bh(&addrconf_hash_lock);
914
915 write_lock_bh(&idev->lock);
861
862 in6_ifa_hold(ifa);
863 write_unlock(&idev->lock);
864out2:
865 rcu_read_unlock_bh();
866
867 if (likely(err == 0))
868 inet6addr_notifier_call_chain(NETDEV_UP, ifa);

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895 if (state == INET6_IFADDR_STATE_DEAD)
896 goto out;
897
898 spin_lock_bh(&addrconf_hash_lock);
899 hlist_del_init_rcu(&ifp->addr_lst);
900 spin_unlock_bh(&addrconf_hash_lock);
901
902 write_lock_bh(&idev->lock);
916#ifdef CONFIG_IPV6_PRIVACY
903
917 if (ifp->flags&IFA_F_TEMPORARY) {
918 list_del(&ifp->tmp_list);
919 if (ifp->ifpub) {
920 in6_ifa_put(ifp->ifpub);
921 ifp->ifpub = NULL;
922 }
923 __in6_ifa_put(ifp);
924 }
904 if (ifp->flags&IFA_F_TEMPORARY) {
905 list_del(&ifp->tmp_list);
906 if (ifp->ifpub) {
907 in6_ifa_put(ifp->ifpub);
908 ifp->ifpub = NULL;
909 }
910 __in6_ifa_put(ifp);
911 }
925#endif
926
927 list_for_each_entry_safe(ifa, ifn, &idev->addr_list, if_list) {
928 if (ifa == ifp) {
929 list_del_init(&ifp->if_list);
930 __in6_ifa_put(ifp);
931
932 if (!(ifp->flags & IFA_F_PERMANENT) || onlink > 0)
933 break;

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1008 }
1009
1010 /* clean up prefsrc entries */
1011 rt6_remove_prefsrc(ifp);
1012out:
1013 in6_ifa_put(ifp);
1014}
1015
912
913 list_for_each_entry_safe(ifa, ifn, &idev->addr_list, if_list) {
914 if (ifa == ifp) {
915 list_del_init(&ifp->if_list);
916 __in6_ifa_put(ifp);
917
918 if (!(ifp->flags & IFA_F_PERMANENT) || onlink > 0)
919 break;

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994 }
995
996 /* clean up prefsrc entries */
997 rt6_remove_prefsrc(ifp);
998out:
999 in6_ifa_put(ifp);
1000}
1001
1016#ifdef CONFIG_IPV6_PRIVACY
1017static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *ift)
1018{
1019 struct inet6_dev *idev = ifp->idev;
1020 struct in6_addr addr, *tmpaddr;
1021 unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_tstamp, age;
1022 unsigned long regen_advance;
1023 int tmp_plen;
1024 int ret = 0;

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1111 spin_unlock_bh(&ift->lock);
1112
1113 addrconf_dad_start(ift);
1114 in6_ifa_put(ift);
1115 in6_dev_put(idev);
1116out:
1117 return ret;
1118}
1002static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *ift)
1003{
1004 struct inet6_dev *idev = ifp->idev;
1005 struct in6_addr addr, *tmpaddr;
1006 unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_tstamp, age;
1007 unsigned long regen_advance;
1008 int tmp_plen;
1009 int ret = 0;

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1096 spin_unlock_bh(&ift->lock);
1097
1098 addrconf_dad_start(ift);
1099 in6_ifa_put(ift);
1100 in6_dev_put(idev);
1101out:
1102 return ret;
1103}
1119#endif
1120
1121/*
1122 * Choose an appropriate source address (RFC3484)
1123 */
1124enum {
1125 IPV6_SADDR_RULE_INIT = 0,
1126 IPV6_SADDR_RULE_LOCAL,
1127 IPV6_SADDR_RULE_SCOPE,
1128 IPV6_SADDR_RULE_PREFERRED,
1129#ifdef CONFIG_IPV6_MIP6
1130 IPV6_SADDR_RULE_HOA,
1131#endif
1132 IPV6_SADDR_RULE_OIF,
1133 IPV6_SADDR_RULE_LABEL,
1104
1105/*
1106 * Choose an appropriate source address (RFC3484)
1107 */
1108enum {
1109 IPV6_SADDR_RULE_INIT = 0,
1110 IPV6_SADDR_RULE_LOCAL,
1111 IPV6_SADDR_RULE_SCOPE,
1112 IPV6_SADDR_RULE_PREFERRED,
1113#ifdef CONFIG_IPV6_MIP6
1114 IPV6_SADDR_RULE_HOA,
1115#endif
1116 IPV6_SADDR_RULE_OIF,
1117 IPV6_SADDR_RULE_LABEL,
1134#ifdef CONFIG_IPV6_PRIVACY
1135 IPV6_SADDR_RULE_PRIVACY,
1118 IPV6_SADDR_RULE_PRIVACY,
1136#endif
1137 IPV6_SADDR_RULE_ORCHID,
1138 IPV6_SADDR_RULE_PREFIX,
1139 IPV6_SADDR_RULE_MAX
1140};
1141
1142struct ipv6_saddr_score {
1143 int rule;
1144 int addr_type;

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1242 dst->ifindex == score->ifa->idev->dev->ifindex);
1243 break;
1244 case IPV6_SADDR_RULE_LABEL:
1245 /* Rule 6: Prefer matching label */
1246 ret = ipv6_addr_label(net,
1247 &score->ifa->addr, score->addr_type,
1248 score->ifa->idev->dev->ifindex) == dst->label;
1249 break;
1119 IPV6_SADDR_RULE_ORCHID,
1120 IPV6_SADDR_RULE_PREFIX,
1121 IPV6_SADDR_RULE_MAX
1122};
1123
1124struct ipv6_saddr_score {
1125 int rule;
1126 int addr_type;

--- 97 unchanged lines hidden (view full) ---

1224 dst->ifindex == score->ifa->idev->dev->ifindex);
1225 break;
1226 case IPV6_SADDR_RULE_LABEL:
1227 /* Rule 6: Prefer matching label */
1228 ret = ipv6_addr_label(net,
1229 &score->ifa->addr, score->addr_type,
1230 score->ifa->idev->dev->ifindex) == dst->label;
1231 break;
1250#ifdef CONFIG_IPV6_PRIVACY
1251 case IPV6_SADDR_RULE_PRIVACY:
1252 {
1253 /* Rule 7: Prefer public address
1254 * Note: prefer temporary address if use_tempaddr >= 2
1255 */
1256 int preftmp = dst->prefs & (IPV6_PREFER_SRC_PUBLIC|IPV6_PREFER_SRC_TMP) ?
1257 !!(dst->prefs & IPV6_PREFER_SRC_TMP) :
1258 score->ifa->idev->cnf.use_tempaddr >= 2;
1259 ret = (!(score->ifa->flags & IFA_F_TEMPORARY)) ^ preftmp;
1260 break;
1261 }
1232 case IPV6_SADDR_RULE_PRIVACY:
1233 {
1234 /* Rule 7: Prefer public address
1235 * Note: prefer temporary address if use_tempaddr >= 2
1236 */
1237 int preftmp = dst->prefs & (IPV6_PREFER_SRC_PUBLIC|IPV6_PREFER_SRC_TMP) ?
1238 !!(dst->prefs & IPV6_PREFER_SRC_TMP) :
1239 score->ifa->idev->cnf.use_tempaddr >= 2;
1240 ret = (!(score->ifa->flags & IFA_F_TEMPORARY)) ^ preftmp;
1241 break;
1242 }
1262#endif
1263 case IPV6_SADDR_RULE_ORCHID:
1264 /* Rule 8-: Prefer ORCHID vs ORCHID or
1265 * non-ORCHID vs non-ORCHID
1266 */
1267 ret = !(ipv6_addr_orchid(&score->ifa->addr) ^
1268 ipv6_addr_orchid(dst->addr));
1269 break;
1270 case IPV6_SADDR_RULE_PREFIX:

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1583 addrconf_del_dad_timer(ifp);
1584 ifp->flags |= IFA_F_TENTATIVE;
1585 if (dad_failed)
1586 ifp->flags |= IFA_F_DADFAILED;
1587 spin_unlock_bh(&ifp->lock);
1588 if (dad_failed)
1589 ipv6_ifa_notify(0, ifp);
1590 in6_ifa_put(ifp);
1243 case IPV6_SADDR_RULE_ORCHID:
1244 /* Rule 8-: Prefer ORCHID vs ORCHID or
1245 * non-ORCHID vs non-ORCHID
1246 */
1247 ret = !(ipv6_addr_orchid(&score->ifa->addr) ^
1248 ipv6_addr_orchid(dst->addr));
1249 break;
1250 case IPV6_SADDR_RULE_PREFIX:

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1563 addrconf_del_dad_timer(ifp);
1564 ifp->flags |= IFA_F_TENTATIVE;
1565 if (dad_failed)
1566 ifp->flags |= IFA_F_DADFAILED;
1567 spin_unlock_bh(&ifp->lock);
1568 if (dad_failed)
1569 ipv6_ifa_notify(0, ifp);
1570 in6_ifa_put(ifp);
1591#ifdef CONFIG_IPV6_PRIVACY
1592 } else if (ifp->flags&IFA_F_TEMPORARY) {
1593 struct inet6_ifaddr *ifpub;
1594 spin_lock_bh(&ifp->lock);
1595 ifpub = ifp->ifpub;
1596 if (ifpub) {
1597 in6_ifa_hold(ifpub);
1598 spin_unlock_bh(&ifp->lock);
1599 ipv6_create_tempaddr(ifpub, ifp);
1600 in6_ifa_put(ifpub);
1601 } else {
1602 spin_unlock_bh(&ifp->lock);
1603 }
1604 ipv6_del_addr(ifp);
1571 } else if (ifp->flags&IFA_F_TEMPORARY) {
1572 struct inet6_ifaddr *ifpub;
1573 spin_lock_bh(&ifp->lock);
1574 ifpub = ifp->ifpub;
1575 if (ifpub) {
1576 in6_ifa_hold(ifpub);
1577 spin_unlock_bh(&ifp->lock);
1578 ipv6_create_tempaddr(ifpub, ifp);
1579 in6_ifa_put(ifpub);
1580 } else {
1581 spin_unlock_bh(&ifp->lock);
1582 }
1583 ipv6_del_addr(ifp);
1605#endif
1606 } else
1607 ipv6_del_addr(ifp);
1608}
1609
1610static int addrconf_dad_end(struct inet6_ifaddr *ifp)
1611{
1612 int err = -ENOENT;
1613

--- 232 unchanged lines hidden (view full) ---

1846 err = 0;
1847 break;
1848 }
1849 }
1850 read_unlock_bh(&idev->lock);
1851 return err;
1852}
1853
1584 } else
1585 ipv6_del_addr(ifp);
1586}
1587
1588static int addrconf_dad_end(struct inet6_ifaddr *ifp)
1589{
1590 int err = -ENOENT;
1591

--- 232 unchanged lines hidden (view full) ---

1824 err = 0;
1825 break;
1826 }
1827 }
1828 read_unlock_bh(&idev->lock);
1829 return err;
1830}
1831
1854#ifdef CONFIG_IPV6_PRIVACY
1855/* (re)generation of randomized interface identifier (RFC 3041 3.2, 3.5) */
1856static void __ipv6_regen_rndid(struct inet6_dev *idev)
1857{
1858regen:
1859 get_random_bytes(idev->rndid, sizeof(idev->rndid));
1860 idev->rndid[0] &= ~0x02;
1861
1862 /*

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1914 in6_dev_put(idev);
1915}
1916
1917static void __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpaddr)
1918{
1919 if (tmpaddr && memcmp(idev->rndid, &tmpaddr->s6_addr[8], 8) == 0)
1920 __ipv6_regen_rndid(idev);
1921}
1832/* (re)generation of randomized interface identifier (RFC 3041 3.2, 3.5) */
1833static void __ipv6_regen_rndid(struct inet6_dev *idev)
1834{
1835regen:
1836 get_random_bytes(idev->rndid, sizeof(idev->rndid));
1837 idev->rndid[0] &= ~0x02;
1838
1839 /*

--- 51 unchanged lines hidden (view full) ---

1891 in6_dev_put(idev);
1892}
1893
1894static void __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpaddr)
1895{
1896 if (tmpaddr && memcmp(idev->rndid, &tmpaddr->s6_addr[8], 8) == 0)
1897 __ipv6_regen_rndid(idev);
1898}
1922#endif
1923
1924/*
1925 * Add prefix route.
1926 */
1927
1928static void
1929addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev,
1930 unsigned long expires, u32 flags)

--- 271 unchanged lines hidden (view full) ---

2202 ifp->cstamp = jiffies;
2203 ifp->tokenized = tokenized;
2204 addrconf_dad_start(ifp);
2205 }
2206
2207 if (ifp) {
2208 int flags;
2209 unsigned long now;
1899
1900/*
1901 * Add prefix route.
1902 */
1903
1904static void
1905addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev,
1906 unsigned long expires, u32 flags)

--- 271 unchanged lines hidden (view full) ---

2178 ifp->cstamp = jiffies;
2179 ifp->tokenized = tokenized;
2180 addrconf_dad_start(ifp);
2181 }
2182
2183 if (ifp) {
2184 int flags;
2185 unsigned long now;
2210#ifdef CONFIG_IPV6_PRIVACY
2211 struct inet6_ifaddr *ift;
2186 struct inet6_ifaddr *ift;
2212#endif
2213 u32 stored_lft;
2214
2215 /* update lifetime (RFC2462 5.5.3 e) */
2216 spin_lock(&ifp->lock);
2217 now = jiffies;
2218 if (ifp->valid_lft > (now - ifp->tstamp) / HZ)
2219 stored_lft = ifp->valid_lft - (now - ifp->tstamp) / HZ;
2220 else

--- 24 unchanged lines hidden (view full) ---

2245 ifp->flags &= ~IFA_F_DEPRECATED;
2246 spin_unlock(&ifp->lock);
2247
2248 if (!(flags&IFA_F_TENTATIVE))
2249 ipv6_ifa_notify(0, ifp);
2250 } else
2251 spin_unlock(&ifp->lock);
2252
2187 u32 stored_lft;
2188
2189 /* update lifetime (RFC2462 5.5.3 e) */
2190 spin_lock(&ifp->lock);
2191 now = jiffies;
2192 if (ifp->valid_lft > (now - ifp->tstamp) / HZ)
2193 stored_lft = ifp->valid_lft - (now - ifp->tstamp) / HZ;
2194 else

--- 24 unchanged lines hidden (view full) ---

2219 ifp->flags &= ~IFA_F_DEPRECATED;
2220 spin_unlock(&ifp->lock);
2221
2222 if (!(flags&IFA_F_TENTATIVE))
2223 ipv6_ifa_notify(0, ifp);
2224 } else
2225 spin_unlock(&ifp->lock);
2226
2253#ifdef CONFIG_IPV6_PRIVACY
2254 read_lock_bh(&in6_dev->lock);
2255 /* update all temporary addresses in the list */
2256 list_for_each_entry(ift, &in6_dev->tempaddr_list,
2257 tmp_list) {
2258 int age, max_valid, max_prefered;
2259
2260 if (ifp != ift->ifpub)
2261 continue;

--- 48 unchanged lines hidden (view full) ---

2310 * address if it's enabled but no temporary
2311 * address currently exists.
2312 */
2313 read_unlock_bh(&in6_dev->lock);
2314 ipv6_create_tempaddr(ifp, NULL);
2315 } else {
2316 read_unlock_bh(&in6_dev->lock);
2317 }
2227 read_lock_bh(&in6_dev->lock);
2228 /* update all temporary addresses in the list */
2229 list_for_each_entry(ift, &in6_dev->tempaddr_list,
2230 tmp_list) {
2231 int age, max_valid, max_prefered;
2232
2233 if (ifp != ift->ifpub)
2234 continue;

--- 48 unchanged lines hidden (view full) ---

2283 * address if it's enabled but no temporary
2284 * address currently exists.
2285 */
2286 read_unlock_bh(&in6_dev->lock);
2287 ipv6_create_tempaddr(ifp, NULL);
2288 } else {
2289 read_unlock_bh(&in6_dev->lock);
2290 }
2318#endif
2291
2319 in6_ifa_put(ifp);
2320 addrconf_verify(0);
2321 }
2322 }
2323 inet6_prefix_notify(RTM_NEWPREFIX, in6_dev, pinfo);
2324 in6_dev_put(in6_dev);
2325}
2326

--- 663 unchanged lines hidden (view full) ---

2990 write_lock_bh(&idev->lock);
2991
2992 addrconf_del_rs_timer(idev);
2993
2994 /* Step 2: clear flags for stateless addrconf */
2995 if (!how)
2996 idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
2997
2292 in6_ifa_put(ifp);
2293 addrconf_verify(0);
2294 }
2295 }
2296 inet6_prefix_notify(RTM_NEWPREFIX, in6_dev, pinfo);
2297 in6_dev_put(in6_dev);
2298}
2299

--- 663 unchanged lines hidden (view full) ---

2963 write_lock_bh(&idev->lock);
2964
2965 addrconf_del_rs_timer(idev);
2966
2967 /* Step 2: clear flags for stateless addrconf */
2968 if (!how)
2969 idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
2970
2998#ifdef CONFIG_IPV6_PRIVACY
2999 if (how && del_timer(&idev->regen_timer))
3000 in6_dev_put(idev);
3001
3002 /* Step 3: clear tempaddr list */
3003 while (!list_empty(&idev->tempaddr_list)) {
3004 ifa = list_first_entry(&idev->tempaddr_list,
3005 struct inet6_ifaddr, tmp_list);
3006 list_del(&ifa->tmp_list);
3007 write_unlock_bh(&idev->lock);
3008 spin_lock_bh(&ifa->lock);
3009
3010 if (ifa->ifpub) {
3011 in6_ifa_put(ifa->ifpub);
3012 ifa->ifpub = NULL;
3013 }
3014 spin_unlock_bh(&ifa->lock);
3015 in6_ifa_put(ifa);
3016 write_lock_bh(&idev->lock);
3017 }
2971 if (how && del_timer(&idev->regen_timer))
2972 in6_dev_put(idev);
2973
2974 /* Step 3: clear tempaddr list */
2975 while (!list_empty(&idev->tempaddr_list)) {
2976 ifa = list_first_entry(&idev->tempaddr_list,
2977 struct inet6_ifaddr, tmp_list);
2978 list_del(&ifa->tmp_list);
2979 write_unlock_bh(&idev->lock);
2980 spin_lock_bh(&ifa->lock);
2981
2982 if (ifa->ifpub) {
2983 in6_ifa_put(ifa->ifpub);
2984 ifa->ifpub = NULL;
2985 }
2986 spin_unlock_bh(&ifa->lock);
2987 in6_ifa_put(ifa);
2988 write_lock_bh(&idev->lock);
2989 }
3018#endif
3019
3020 while (!list_empty(&idev->addr_list)) {
3021 ifa = list_first_entry(&idev->addr_list,
3022 struct inet6_ifaddr, if_list);
3023 addrconf_del_dad_timer(ifa);
3024
3025 list_del(&ifa->if_list);
3026

--- 496 unchanged lines hidden (view full) ---

3523
3524 if (deprecate) {
3525 in6_ifa_hold(ifp);
3526
3527 ipv6_ifa_notify(0, ifp);
3528 in6_ifa_put(ifp);
3529 goto restart;
3530 }
2990
2991 while (!list_empty(&idev->addr_list)) {
2992 ifa = list_first_entry(&idev->addr_list,
2993 struct inet6_ifaddr, if_list);
2994 addrconf_del_dad_timer(ifa);
2995
2996 list_del(&ifa->if_list);
2997

--- 496 unchanged lines hidden (view full) ---

3494
3495 if (deprecate) {
3496 in6_ifa_hold(ifp);
3497
3498 ipv6_ifa_notify(0, ifp);
3499 in6_ifa_put(ifp);
3500 goto restart;
3501 }
3531#ifdef CONFIG_IPV6_PRIVACY
3532 } else if ((ifp->flags&IFA_F_TEMPORARY) &&
3533 !(ifp->flags&IFA_F_TENTATIVE)) {
3534 unsigned long regen_advance = ifp->idev->cnf.regen_max_retry *
3535 ifp->idev->cnf.dad_transmits *
3536 ifp->idev->nd_parms->retrans_time / HZ;
3537
3538 if (age >= ifp->prefered_lft - regen_advance) {
3539 struct inet6_ifaddr *ifpub = ifp->ifpub;

--- 11 unchanged lines hidden (view full) ---

3551 ipv6_create_tempaddr(ifpub, ifp);
3552 in6_ifa_put(ifpub);
3553 in6_ifa_put(ifp);
3554 goto restart;
3555 }
3556 } else if (time_before(ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ, next))
3557 next = ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ;
3558 spin_unlock(&ifp->lock);
3502 } else if ((ifp->flags&IFA_F_TEMPORARY) &&
3503 !(ifp->flags&IFA_F_TENTATIVE)) {
3504 unsigned long regen_advance = ifp->idev->cnf.regen_max_retry *
3505 ifp->idev->cnf.dad_transmits *
3506 ifp->idev->nd_parms->retrans_time / HZ;
3507
3508 if (age >= ifp->prefered_lft - regen_advance) {
3509 struct inet6_ifaddr *ifpub = ifp->ifpub;

--- 11 unchanged lines hidden (view full) ---

3521 ipv6_create_tempaddr(ifpub, ifp);
3522 in6_ifa_put(ifpub);
3523 in6_ifa_put(ifp);
3524 goto restart;
3525 }
3526 } else if (time_before(ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ, next))
3527 next = ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ;
3528 spin_unlock(&ifp->lock);
3559#endif
3560 } else {
3561 /* ifp->prefered_lft <= ifp->valid_lft */
3562 if (time_before(ifp->tstamp + ifp->prefered_lft * HZ, next))
3563 next = ifp->tstamp + ifp->prefered_lft * HZ;
3564 spin_unlock(&ifp->lock);
3565 }
3566 }
3567 }

--- 555 unchanged lines hidden (view full) ---

4123 jiffies_to_msecs(cnf->rtr_solicit_interval);
4124 array[DEVCONF_RTR_SOLICIT_DELAY] =
4125 jiffies_to_msecs(cnf->rtr_solicit_delay);
4126 array[DEVCONF_FORCE_MLD_VERSION] = cnf->force_mld_version;
4127 array[DEVCONF_MLDV1_UNSOLICITED_REPORT_INTERVAL] =
4128 jiffies_to_msecs(cnf->mldv1_unsolicited_report_interval);
4129 array[DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL] =
4130 jiffies_to_msecs(cnf->mldv2_unsolicited_report_interval);
3529 } else {
3530 /* ifp->prefered_lft <= ifp->valid_lft */
3531 if (time_before(ifp->tstamp + ifp->prefered_lft * HZ, next))
3532 next = ifp->tstamp + ifp->prefered_lft * HZ;
3533 spin_unlock(&ifp->lock);
3534 }
3535 }
3536 }

--- 555 unchanged lines hidden (view full) ---

4092 jiffies_to_msecs(cnf->rtr_solicit_interval);
4093 array[DEVCONF_RTR_SOLICIT_DELAY] =
4094 jiffies_to_msecs(cnf->rtr_solicit_delay);
4095 array[DEVCONF_FORCE_MLD_VERSION] = cnf->force_mld_version;
4096 array[DEVCONF_MLDV1_UNSOLICITED_REPORT_INTERVAL] =
4097 jiffies_to_msecs(cnf->mldv1_unsolicited_report_interval);
4098 array[DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL] =
4099 jiffies_to_msecs(cnf->mldv2_unsolicited_report_interval);
4131#ifdef CONFIG_IPV6_PRIVACY
4132 array[DEVCONF_USE_TEMPADDR] = cnf->use_tempaddr;
4133 array[DEVCONF_TEMP_VALID_LFT] = cnf->temp_valid_lft;
4134 array[DEVCONF_TEMP_PREFERED_LFT] = cnf->temp_prefered_lft;
4135 array[DEVCONF_REGEN_MAX_RETRY] = cnf->regen_max_retry;
4136 array[DEVCONF_MAX_DESYNC_FACTOR] = cnf->max_desync_factor;
4100 array[DEVCONF_USE_TEMPADDR] = cnf->use_tempaddr;
4101 array[DEVCONF_TEMP_VALID_LFT] = cnf->temp_valid_lft;
4102 array[DEVCONF_TEMP_PREFERED_LFT] = cnf->temp_prefered_lft;
4103 array[DEVCONF_REGEN_MAX_RETRY] = cnf->regen_max_retry;
4104 array[DEVCONF_MAX_DESYNC_FACTOR] = cnf->max_desync_factor;
4137#endif
4138 array[DEVCONF_MAX_ADDRESSES] = cnf->max_addresses;
4139 array[DEVCONF_ACCEPT_RA_DEFRTR] = cnf->accept_ra_defrtr;
4140 array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo;
4141#ifdef CONFIG_IPV6_ROUTER_PREF
4142 array[DEVCONF_ACCEPT_RA_RTR_PREF] = cnf->accept_ra_rtr_pref;
4143 array[DEVCONF_RTR_PROBE_INTERVAL] =
4144 jiffies_to_msecs(cnf->rtr_probe_interval);
4145#ifdef CONFIG_IPV6_ROUTE_INFO

--- 677 unchanged lines hidden (view full) ---

4823 {
4824 .procname = "mldv2_unsolicited_report_interval",
4825 .data =
4826 &ipv6_devconf.mldv2_unsolicited_report_interval,
4827 .maxlen = sizeof(int),
4828 .mode = 0644,
4829 .proc_handler = proc_dointvec_ms_jiffies,
4830 },
4105 array[DEVCONF_MAX_ADDRESSES] = cnf->max_addresses;
4106 array[DEVCONF_ACCEPT_RA_DEFRTR] = cnf->accept_ra_defrtr;
4107 array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo;
4108#ifdef CONFIG_IPV6_ROUTER_PREF
4109 array[DEVCONF_ACCEPT_RA_RTR_PREF] = cnf->accept_ra_rtr_pref;
4110 array[DEVCONF_RTR_PROBE_INTERVAL] =
4111 jiffies_to_msecs(cnf->rtr_probe_interval);
4112#ifdef CONFIG_IPV6_ROUTE_INFO

--- 677 unchanged lines hidden (view full) ---

4790 {
4791 .procname = "mldv2_unsolicited_report_interval",
4792 .data =
4793 &ipv6_devconf.mldv2_unsolicited_report_interval,
4794 .maxlen = sizeof(int),
4795 .mode = 0644,
4796 .proc_handler = proc_dointvec_ms_jiffies,
4797 },
4831#ifdef CONFIG_IPV6_PRIVACY
4832 {
4833 .procname = "use_tempaddr",
4834 .data = &ipv6_devconf.use_tempaddr,
4835 .maxlen = sizeof(int),
4836 .mode = 0644,
4837 .proc_handler = proc_dointvec,
4838 },
4839 {

--- 19 unchanged lines hidden (view full) ---

4859 },
4860 {
4861 .procname = "max_desync_factor",
4862 .data = &ipv6_devconf.max_desync_factor,
4863 .maxlen = sizeof(int),
4864 .mode = 0644,
4865 .proc_handler = proc_dointvec,
4866 },
4798 {
4799 .procname = "use_tempaddr",
4800 .data = &ipv6_devconf.use_tempaddr,
4801 .maxlen = sizeof(int),
4802 .mode = 0644,
4803 .proc_handler = proc_dointvec,
4804 },
4805 {

--- 19 unchanged lines hidden (view full) ---

4825 },
4826 {
4827 .procname = "max_desync_factor",
4828 .data = &ipv6_devconf.max_desync_factor,
4829 .maxlen = sizeof(int),
4830 .mode = 0644,
4831 .proc_handler = proc_dointvec,
4832 },
4867#endif
4868 {
4869 .procname = "max_addresses",
4870 .data = &ipv6_devconf.max_addresses,
4871 .maxlen = sizeof(int),
4872 .mode = 0644,
4873 .proc_handler = proc_dointvec,
4874 },
4875 {

--- 360 unchanged lines hidden --- 		4833 {
4834 .procname = "max_addresses",
4835 .data = &ipv6_devconf.max_addresses,
4836 .maxlen = sizeof(int),
4837 .mode = 0644,
4838 .proc_handler = proc_dointvec,
4839 },
4840 {

--- 360 unchanged lines hidden ---