* Pedro Roque <roque@di.fc.ul.pt>
* Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
*
- * $Id: addrconf.c,v 1.69 2001/10/31 21:55:54 davem Exp $
- *
* 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
#include <linux/errno.h>
#include <linux/types.h>
+#include <linux/kernel.h>
#include <linux/socket.h>
#include <linux/sockios.h>
#include <linux/net.h>
static int desync_factor = MAX_DESYNC_FACTOR * HZ;
#endif
+static int ipv6_generate_eui64(u8 *eui, struct net_device *dev);
static int ipv6_count_addresses(struct inet6_dev *idev);
/*
static ATOMIC_NOTIFIER_HEAD(inet6addr_chain);
-struct ipv6_devconf ipv6_devconf __read_mostly = {
+static struct ipv6_devconf ipv6_devconf __read_mostly = {
.forwarding = 0,
.hop_limit = IPV6_DEFAULT_HOPLIMIT,
.mtu6 = IPV6_MIN_MTU,
#endif
.proxy_ndp = 0,
.accept_source_route = 0, /* we do not accept RH0 by default. */
+ .disable_ipv6 = 0,
+ .accept_dad = 1,
};
static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = {
#endif
.proxy_ndp = 0,
.accept_source_route = 0, /* we do not accept RH0 by default. */
+ .disable_ipv6 = 0,
+ .accept_dad = 1,
};
/* IPv6 Wildcard Address and Loopback Address defined by RFC2553 */
const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
+const struct in6_addr in6addr_linklocal_allnodes = IN6ADDR_LINKLOCAL_ALLNODES_INIT;
+const struct in6_addr in6addr_linklocal_allrouters = IN6ADDR_LINKLOCAL_ALLROUTERS_INIT;
/* Check if a valid qdisc is available */
-static inline int addrconf_qdisc_ok(struct net_device *dev)
+static inline bool addrconf_qdisc_ok(const struct net_device *dev)
+{
+ return !qdisc_tx_is_noop(dev);
+}
+
+/* Check if a route is valid prefix route */
+static inline int addrconf_is_prefix_route(const struct rt6_info *rt)
{
- return (dev->qdisc != &noop_qdisc);
+ return ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0);
}
static void addrconf_del_timer(struct inet6_ifaddr *ifp)
void in6_dev_finish_destroy(struct inet6_dev *idev)
{
struct net_device *dev = idev->dev;
- BUG_TRAP(idev->addr_list==NULL);
- BUG_TRAP(idev->mc_list==NULL);
+
+ WARN_ON(idev->addr_list != NULL);
+ WARN_ON(idev->mc_list != NULL);
+
#ifdef NET_REFCNT_DEBUG
printk(KERN_DEBUG "in6_dev_finish_destroy: %s\n", dev ? dev->name : "NIL");
#endif
static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
{
struct inet6_dev *ndev;
- struct in6_addr maddr;
ASSERT_RTNL();
rwlock_init(&ndev->lock);
ndev->dev = dev;
- memcpy(&ndev->cnf, dev->nd_net->ipv6.devconf_dflt, sizeof(ndev->cnf));
+ memcpy(&ndev->cnf, dev_net(dev)->ipv6.devconf_dflt, sizeof(ndev->cnf));
ndev->cnf.mtu6 = dev->mtu;
ndev->cnf.sysctl = NULL;
ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl);
kfree(ndev);
return NULL;
}
+ if (ndev->cnf.forwarding)
+ dev_disable_lro(dev);
/* We refer to the device */
dev_hold(dev);
if (snmp6_alloc_dev(ndev) < 0) {
ADBG((KERN_WARNING
"%s(): cannot allocate memory for statistics; dev=%s.\n",
- __FUNCTION__, dev->name));
+ __func__, dev->name));
neigh_parms_release(&nd_tbl, ndev->nd_parms);
ndev->dead = 1;
in6_dev_finish_destroy(ndev);
if (snmp6_register_dev(ndev) < 0) {
ADBG((KERN_WARNING
"%s(): cannot create /proc/net/dev_snmp6/%s\n",
- __FUNCTION__, dev->name));
+ __func__, dev->name));
neigh_parms_release(&nd_tbl, ndev->nd_parms);
ndev->dead = 1;
in6_dev_finish_destroy(ndev);
*/
in6_dev_hold(ndev);
+ if (dev->flags & (IFF_NOARP | IFF_LOOPBACK))
+ ndev->cnf.accept_dad = -1;
+
+#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\n",
+ dev->name);
+ ndev->cnf.rtr_solicits = 0;
+ }
+#endif
+
#ifdef CONFIG_IPV6_PRIVACY
setup_timer(&ndev->regen_timer, ipv6_regen_rndid, (unsigned long)ndev);
if ((dev->flags&IFF_LOOPBACK) ||
dev->type == ARPHRD_TUNNEL ||
-#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
+ dev->type == ARPHRD_TUNNEL6 ||
dev->type == ARPHRD_SIT ||
-#endif
dev->type == ARPHRD_NONE) {
printk(KERN_INFO
"%s: Disabled Privacy Extensions\n",
dev->name);
ndev->cnf.use_tempaddr = -1;
-
- if (dev->type == ARPHRD_SIT && (dev->priv_flags & IFF_ISATAP)) {
- printk(KERN_INFO
- "%s: Disabled Multicast RS\n",
- dev->name);
- ndev->cnf.rtr_solicits = 0;
- }
} else {
in6_dev_hold(ndev);
ipv6_regen_rndid((unsigned long) ndev);
rcu_assign_pointer(dev->ip6_ptr, ndev);
/* Join all-node multicast group */
- ipv6_addr_all_nodes(&maddr);
- ipv6_dev_mc_inc(dev, &maddr);
+ ipv6_dev_mc_inc(dev, &in6addr_linklocal_allnodes);
return ndev;
}
{
struct net_device *dev;
struct inet6_ifaddr *ifa;
- struct in6_addr addr;
if (!idev)
return;
dev = idev->dev;
+ if (idev->cnf.forwarding)
+ dev_disable_lro(dev);
if (dev && (dev->flags & IFF_MULTICAST)) {
- ipv6_addr_all_routers(&addr);
-
if (idev->cnf.forwarding)
- ipv6_dev_mc_inc(dev, &addr);
+ ipv6_dev_mc_inc(dev, &in6addr_linklocal_allrouters);
else
- ipv6_dev_mc_dec(dev, &addr);
+ ipv6_dev_mc_dec(dev, &in6addr_linklocal_allrouters);
}
for (ifa=idev->addr_list; ifa; ifa=ifa->if_next) {
if (ifa->flags&IFA_F_TENTATIVE)
read_unlock(&dev_base_lock);
}
-static void addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
+static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
{
struct net *net;
net = (struct net *)table->extra2;
if (p == &net->ipv6.devconf_dflt->forwarding)
- return;
+ return 0;
+
+ if (!rtnl_trylock())
+ return -ERESTARTSYS;
if (p == &net->ipv6.devconf_all->forwarding) {
__s32 newf = net->ipv6.devconf_all->forwarding;
addrconf_forward_change(net, newf);
} else if ((!*p) ^ (!old))
dev_forward_change((struct inet6_dev *)table->extra1);
+ rtnl_unlock();
if (*p)
- rt6_purge_dflt_routers();
+ rt6_purge_dflt_routers(net);
+ return 1;
}
#endif
void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp)
{
- BUG_TRAP(ifp->if_next==NULL);
- BUG_TRAP(ifp->lst_next==NULL);
+ WARN_ON(ifp->if_next != NULL);
+ WARN_ON(ifp->lst_next != NULL);
+
#ifdef NET_REFCNT_DEBUG
printk(KERN_DEBUG "inet6_ifa_finish_destroy\n");
#endif
*ifap = ifp;
}
+/*
+ * 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);
+}
+
/* On success it returns ifp with increased reference count */
static struct inet6_ifaddr *
{
struct inet6_ifaddr *ifa = NULL;
struct rt6_info *rt;
+ struct net *net = dev_net(idev->dev);
int hash;
int err = 0;
+ 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);
rcu_read_lock_bh();
if (idev->dead) {
goto out2;
}
+ if (idev->cnf.disable_ipv6 || net->ipv6.devconf_all->disable_ipv6) {
+ err = -EACCES;
+ goto out2;
+ }
+
write_lock(&addrconf_hash_lock);
/* Ignore adding duplicate addresses on an interface */
- if (ipv6_chk_same_addr(&init_net, addr, idev->dev)) {
+ if (ipv6_chk_same_addr(dev_net(idev->dev), addr, idev->dev)) {
ADBG(("ipv6_add_addr: already assigned\n"));
err = -EEXIST;
goto out;
onlink = -1;
spin_lock(&ifa->lock);
- lifetime = min_t(unsigned long,
- ifa->valid_lft, 0x7fffffffUL/HZ);
+
+ lifetime = addrconf_timeout_fixup(ifa->valid_lft, HZ);
+ /*
+ * Note: Because this address is
+ * not permanent, lifetime <
+ * LONG_MAX / HZ here.
+ */
if (time_before(expires,
ifa->tstamp + lifetime * HZ))
expires = ifa->tstamp + lifetime * HZ;
}
write_unlock_bh(&idev->lock);
+ addrconf_del_timer(ifp);
+
ipv6_ifa_notify(RTM_DELADDR, ifp);
atomic_notifier_call_chain(&inet6addr_chain, NETDEV_DOWN, ifp);
- addrconf_del_timer(ifp);
-
/*
* Purge or update corresponding prefix
*
if ((ifp->flags & IFA_F_PERMANENT) && onlink < 1) {
struct in6_addr prefix;
struct rt6_info *rt;
-
+ struct net *net = dev_net(ifp->idev->dev);
ipv6_addr_prefix(&prefix, &ifp->addr, ifp->prefix_len);
- rt = rt6_lookup(&prefix, NULL, ifp->idev->dev->ifindex, 1);
+ rt = rt6_lookup(net, &prefix, NULL, ifp->idev->dev->ifindex, 1);
- if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
+ if (rt && addrconf_is_prefix_route(rt)) {
if (onlink == 0) {
ip6_del_rt(rt);
rt = NULL;
struct inet6_dev *idev = ifp->idev;
struct in6_addr addr, *tmpaddr;
unsigned long tmp_prefered_lft, tmp_valid_lft, tmp_cstamp, tmp_tstamp;
+ unsigned long regen_advance;
int tmp_plen;
int ret = 0;
int max_addresses;
tmp_tstamp = ifp->tstamp;
spin_unlock_bh(&ifp->lock);
+ regen_advance = idev->cnf.regen_max_retry *
+ idev->cnf.dad_transmits *
+ idev->nd_parms->retrans_time / HZ;
write_unlock(&idev->lock);
+ /* 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;
+ }
+
addr_flags = IFA_F_TEMPORARY;
/* set in addrconf_prefix_rcv() */
if (ifp->flags & IFA_F_OPTIMISTIC)
/*
* Choose an appropriate source address (RFC3484)
*/
+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
+};
+
struct ipv6_saddr_score {
- int addr_type;
- unsigned int attrs;
- int matchlen;
- int scope;
- unsigned int rule;
+ int rule;
+ int addr_type;
+ struct inet6_ifaddr *ifa;
+ DECLARE_BITMAP(scorebits, IPV6_SADDR_RULE_MAX);
+ int scopedist;
+ int matchlen;
};
-#define IPV6_SADDR_SCORE_LOCAL 0x0001
-#define IPV6_SADDR_SCORE_PREFERRED 0x0004
-#define IPV6_SADDR_SCORE_HOA 0x0008
-#define IPV6_SADDR_SCORE_OIF 0x0010
-#define IPV6_SADDR_SCORE_LABEL 0x0020
-#define IPV6_SADDR_SCORE_PRIVACY 0x0040
+struct ipv6_saddr_dst {
+ const struct in6_addr *addr;
+ int ifindex;
+ int scope;
+ int label;
+ unsigned int prefs;
+};
static inline int ipv6_saddr_preferred(int type)
{
return 0;
}
-int ipv6_dev_get_saddr(struct net_device *daddr_dev,
- struct in6_addr *daddr, struct in6_addr *saddr)
+static int ipv6_get_saddr_eval(struct net *net,
+ struct ipv6_saddr_score *score,
+ struct ipv6_saddr_dst *dst,
+ int i)
{
- struct ipv6_saddr_score hiscore;
- struct inet6_ifaddr *ifa_result = NULL;
- int daddr_type = __ipv6_addr_type(daddr);
- int daddr_scope = __ipv6_addr_src_scope(daddr_type);
- int daddr_ifindex = daddr_dev ? daddr_dev->ifindex : 0;
- u32 daddr_label = ipv6_addr_label(daddr, daddr_type, daddr_ifindex);
+ 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:
+ {
+ /* Rule 4: Prefer home address */
+ int prefhome = !(dst->prefs & IPV6_PREFER_SRC_COA);
+ ret = !(score->ifa->flags & IFA_F_HOMEADDRESS) ^ prefhome;
+ break;
+ }
+#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 */
+ ret = ipv6_addr_label(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
+ * Note: prefer temprary address if use_tempaddr >= 2
+ */
+ 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;
+ break;
+ }
+#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;
+}
+
+int ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev,
+ const struct in6_addr *daddr, unsigned int prefs,
+ struct in6_addr *saddr)
+{
+ struct ipv6_saddr_score scores[2],
+ *score = &scores[0], *hiscore = &scores[1];
+ struct ipv6_saddr_dst dst;
struct net_device *dev;
+ int dst_type;
+
+ 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);
+ dst.label = ipv6_addr_label(net, daddr, dst_type, dst.ifindex);
+ dst.prefs = prefs;
- memset(&hiscore, 0, sizeof(hiscore));
+ hiscore->rule = -1;
+ hiscore->ifa = NULL;
read_lock(&dev_base_lock);
rcu_read_lock();
- for_each_netdev(&init_net, dev) {
+ for_each_netdev(net, dev) {
struct inet6_dev *idev;
- struct inet6_ifaddr *ifa;
- /* Rule 0: Candidate Source Address (section 4)
+ /* Candidate Source Address (section 4)
* - multicast and link-local destination address,
* the set of candidate source address MUST only
* include addresses assigned to interfaces
* belonging to the same site as the outgoing
* interface.)
*/
- if ((daddr_type & IPV6_ADDR_MULTICAST ||
- daddr_scope <= IPV6_ADDR_SCOPE_LINKLOCAL) &&
- daddr_dev && dev != daddr_dev)
+ if (((dst_type & IPV6_ADDR_MULTICAST) ||
+ dst.scope <= IPV6_ADDR_SCOPE_LINKLOCAL) &&
+ dst.ifindex && dev->ifindex != dst.ifindex)
continue;
idev = __in6_dev_get(dev);
continue;
read_lock_bh(&idev->lock);
- for (ifa = idev->addr_list; ifa; ifa = ifa->if_next) {
- struct ipv6_saddr_score score;
+ for (score->ifa = idev->addr_list; score->ifa; score->ifa = score->ifa->if_next) {
+ int i;
- score.addr_type = __ipv6_addr_type(&ifa->addr);
-
- /* Rule 0:
+ /*
* - Tentative Address (RFC2462 section 5.4)
* - A tentative address is not considered
* "assigned to an interface" in the traditional
* addresses, and the unspecified address MUST
* NOT be included in a candidate set.
*/
- if ((ifa->flags & IFA_F_TENTATIVE) &&
- (!(ifa->flags & IFA_F_OPTIMISTIC)))
+ if ((score->ifa->flags & IFA_F_TENTATIVE) &&
+ (!(score->ifa->flags & IFA_F_OPTIMISTIC)))
continue;
- if (unlikely(score.addr_type == IPV6_ADDR_ANY ||
- score.addr_type & IPV6_ADDR_MULTICAST)) {
+
+ score->addr_type = __ipv6_addr_type(&score->ifa->addr);
+
+ if (unlikely(score->addr_type == IPV6_ADDR_ANY ||
+ score->addr_type & IPV6_ADDR_MULTICAST)) {
LIMIT_NETDEBUG(KERN_DEBUG
"ADDRCONF: unspecified / multicast address "
"assigned as unicast address on %s",
continue;
}
- score.attrs = 0;
- score.matchlen = 0;
- score.scope = 0;
- score.rule = 0;
-
- if (ifa_result == NULL) {
- /* record it if the first available entry */
- goto record_it;
- }
-
- /* Rule 1: Prefer same address */
- if (hiscore.rule < 1) {
- if (ipv6_addr_equal(&ifa_result->addr, daddr))
- hiscore.attrs |= IPV6_SADDR_SCORE_LOCAL;
- hiscore.rule++;
- }
- if (ipv6_addr_equal(&ifa->addr, daddr)) {
- score.attrs |= IPV6_SADDR_SCORE_LOCAL;
- if (!(hiscore.attrs & IPV6_SADDR_SCORE_LOCAL)) {
- score.rule = 1;
- goto record_it;
- }
- } else {
- if (hiscore.attrs & IPV6_SADDR_SCORE_LOCAL)
- continue;
- }
-
- /* Rule 2: Prefer appropriate scope */
- if (hiscore.rule < 2) {
- hiscore.scope = __ipv6_addr_src_scope(hiscore.addr_type);
- hiscore.rule++;
- }
- score.scope = __ipv6_addr_src_scope(score.addr_type);
- if (hiscore.scope < score.scope) {
- if (hiscore.scope < daddr_scope) {
- score.rule = 2;
- goto record_it;
- } else
- continue;
- } else if (score.scope < hiscore.scope) {
- if (score.scope < daddr_scope)
- break; /* addresses sorted by scope */
- else {
- score.rule = 2;
- goto record_it;
- }
- }
+ score->rule = -1;
+ bitmap_zero(score->scorebits, IPV6_SADDR_RULE_MAX);
+
+ for (i = 0; i < IPV6_SADDR_RULE_MAX; i++) {
+ int minihiscore, miniscore;
+
+ minihiscore = ipv6_get_saddr_eval(net, hiscore, &dst, i);
+ miniscore = ipv6_get_saddr_eval(net, score, &dst, i);
+
+ 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) {
+ if (hiscore->ifa)
+ in6_ifa_put(hiscore->ifa);
- /* Rule 3: Avoid deprecated and optimistic addresses */
- if (hiscore.rule < 3) {
- if (ipv6_saddr_preferred(hiscore.addr_type) ||
- (((ifa_result->flags &
- (IFA_F_DEPRECATED|IFA_F_OPTIMISTIC)) == 0)))
- hiscore.attrs |= IPV6_SADDR_SCORE_PREFERRED;
- hiscore.rule++;
- }
- if (ipv6_saddr_preferred(score.addr_type) ||
- (((ifa->flags &
- (IFA_F_DEPRECATED|IFA_F_OPTIMISTIC)) == 0))) {
- score.attrs |= IPV6_SADDR_SCORE_PREFERRED;
- if (!(hiscore.attrs & IPV6_SADDR_SCORE_PREFERRED)) {
- score.rule = 3;
- goto record_it;
- }
- } else {
- if (hiscore.attrs & IPV6_SADDR_SCORE_PREFERRED)
- continue;
- }
+ in6_ifa_hold(score->ifa);
- /* Rule 4: Prefer home address */
-#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
- if (hiscore.rule < 4) {
- if (ifa_result->flags & IFA_F_HOMEADDRESS)
- hiscore.attrs |= IPV6_SADDR_SCORE_HOA;
- hiscore.rule++;
- }
- if (ifa->flags & IFA_F_HOMEADDRESS) {
- score.attrs |= IPV6_SADDR_SCORE_HOA;
- if (!(ifa_result->flags & IFA_F_HOMEADDRESS)) {
- score.rule = 4;
- goto record_it;
- }
- } else {
- if (hiscore.attrs & IPV6_SADDR_SCORE_HOA)
- continue;
- }
-#else
- if (hiscore.rule < 4)
- hiscore.rule++;
-#endif
+ swap(hiscore, score);
- /* Rule 5: Prefer outgoing interface */
- if (hiscore.rule < 5) {
- if (daddr_dev == NULL ||
- daddr_dev == ifa_result->idev->dev)
- hiscore.attrs |= IPV6_SADDR_SCORE_OIF;
- hiscore.rule++;
- }
- if (daddr_dev == NULL ||
- daddr_dev == ifa->idev->dev) {
- score.attrs |= IPV6_SADDR_SCORE_OIF;
- if (!(hiscore.attrs & IPV6_SADDR_SCORE_OIF)) {
- score.rule = 5;
- goto record_it;
- }
- } else {
- if (hiscore.attrs & IPV6_SADDR_SCORE_OIF)
- continue;
- }
+ /* restore our iterator */
+ score->ifa = hiscore->ifa;
- /* Rule 6: Prefer matching label */
- if (hiscore.rule < 6) {
- if (ipv6_addr_label(&ifa_result->addr,
- hiscore.addr_type,
- ifa_result->idev->dev->ifindex) == daddr_label)
- hiscore.attrs |= IPV6_SADDR_SCORE_LABEL;
- hiscore.rule++;
- }
- if (ipv6_addr_label(&ifa->addr,
- score.addr_type,
- ifa->idev->dev->ifindex) == daddr_label) {
- score.attrs |= IPV6_SADDR_SCORE_LABEL;
- if (!(hiscore.attrs & IPV6_SADDR_SCORE_LABEL)) {
- score.rule = 6;
- goto record_it;
- }
- } else {
- if (hiscore.attrs & IPV6_SADDR_SCORE_LABEL)
- continue;
- }
-
-#ifdef CONFIG_IPV6_PRIVACY
- /* Rule 7: Prefer public address
- * Note: prefer temprary address if use_tempaddr >= 2
- */
- if (hiscore.rule < 7) {
- if ((!(ifa_result->flags & IFA_F_TEMPORARY)) ^
- (ifa_result->idev->cnf.use_tempaddr >= 2))
- hiscore.attrs |= IPV6_SADDR_SCORE_PRIVACY;
- hiscore.rule++;
- }
- if ((!(ifa->flags & IFA_F_TEMPORARY)) ^
- (ifa->idev->cnf.use_tempaddr >= 2)) {
- score.attrs |= IPV6_SADDR_SCORE_PRIVACY;
- if (!(hiscore.attrs & IPV6_SADDR_SCORE_PRIVACY)) {
- score.rule = 7;
- goto record_it;
+ break;
}
- } else {
- if (hiscore.attrs & IPV6_SADDR_SCORE_PRIVACY)
- continue;
- }
-#else
- if (hiscore.rule < 7)
- hiscore.rule++;
-#endif
- /* Rule 8: Use longest matching prefix */
- if (hiscore.rule < 8) {
- hiscore.matchlen = ipv6_addr_diff(&ifa_result->addr, daddr);
- hiscore.rule++;
- }
- score.matchlen = ipv6_addr_diff(&ifa->addr, daddr);
- if (score.matchlen > hiscore.matchlen) {
- score.rule = 8;
- goto record_it;
}
-#if 0
- else if (score.matchlen < hiscore.matchlen)
- continue;
-#endif
-
- /* Final Rule: choose first available one */
- continue;
-record_it:
- if (ifa_result)
- in6_ifa_put(ifa_result);
- in6_ifa_hold(ifa);
- ifa_result = ifa;
- hiscore = score;
}
+try_nextdev:
read_unlock_bh(&idev->lock);
}
rcu_read_unlock();
read_unlock(&dev_base_lock);
- if (!ifa_result)
+ if (!hiscore->ifa)
return -EADDRNOTAVAIL;
- ipv6_addr_copy(saddr, &ifa_result->addr);
- in6_ifa_put(ifa_result);
+ ipv6_addr_copy(saddr, &hiscore->ifa->addr);
+ in6_ifa_put(hiscore->ifa);
return 0;
}
-
-int ipv6_get_saddr(struct dst_entry *dst,
- struct in6_addr *daddr, struct in6_addr *saddr)
-{
- return ipv6_dev_get_saddr(dst ? ip6_dst_idev(dst)->dev : NULL, daddr, saddr);
-}
-
-EXPORT_SYMBOL(ipv6_get_saddr);
+EXPORT_SYMBOL(ipv6_dev_get_saddr);
int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
unsigned char banned_flags)
read_lock_bh(&addrconf_hash_lock);
for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) {
- if (ifp->idev->dev->nd_net != net)
+ if (!net_eq(dev_net(ifp->idev->dev), net))
continue;
if (ipv6_addr_equal(&ifp->addr, addr) &&
!(ifp->flags&IFA_F_TENTATIVE)) {
u8 hash = ipv6_addr_hash(addr);
for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) {
- if (ifp->idev->dev->nd_net != net)
+ if (!net_eq(dev_net(ifp->idev->dev), net))
continue;
if (ipv6_addr_equal(&ifp->addr, addr)) {
if (dev == NULL || ifp->idev->dev == dev)
return ifp != NULL;
}
-struct inet6_ifaddr * ipv6_get_ifaddr(struct in6_addr *addr, struct net_device *dev, int strict)
+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);
+
+struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *addr,
+ struct net_device *dev, int strict)
{
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) {
+ if (!net_eq(dev_net(ifp->idev->dev), net))
+ continue;
if (ipv6_addr_equal(&ifp->addr, addr)) {
if (dev == NULL || ifp->idev->dev == dev ||
!(ifp->scope&(IFA_LINK|IFA_HOST) || strict)) {
return ifp;
}
-int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
-{
- const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr;
- const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
- __be32 sk_rcv_saddr = inet_sk(sk)->rcv_saddr;
- __be32 sk2_rcv_saddr = inet_rcv_saddr(sk2);
- int sk_ipv6only = ipv6_only_sock(sk);
- int sk2_ipv6only = inet_v6_ipv6only(sk2);
- int addr_type = ipv6_addr_type(sk_rcv_saddr6);
- int addr_type2 = sk2_rcv_saddr6 ? ipv6_addr_type(sk2_rcv_saddr6) : IPV6_ADDR_MAPPED;
-
- if (!sk2_rcv_saddr && !sk_ipv6only)
- return 1;
-
- if (addr_type2 == IPV6_ADDR_ANY &&
- !(sk2_ipv6only && addr_type == IPV6_ADDR_MAPPED))
- return 1;
-
- if (addr_type == IPV6_ADDR_ANY &&
- !(sk_ipv6only && addr_type2 == IPV6_ADDR_MAPPED))
- return 1;
-
- if (sk2_rcv_saddr6 &&
- ipv6_addr_equal(sk_rcv_saddr6, sk2_rcv_saddr6))
- return 1;
-
- if (addr_type == IPV6_ADDR_MAPPED &&
- !sk2_ipv6only &&
- (!sk2_rcv_saddr || !sk_rcv_saddr || sk_rcv_saddr == sk2_rcv_saddr))
- return 1;
-
- return 0;
-}
-
/* Gets referenced address, destroys ifaddr */
static void addrconf_dad_stop(struct inet6_ifaddr *ifp)
void addrconf_dad_failure(struct inet6_ifaddr *ifp)
{
+ struct inet6_dev *idev = ifp->idev;
+
if (net_ratelimit())
- printk(KERN_INFO "%s: duplicate address detected!\n", ifp->idev->dev->name);
+ printk(KERN_INFO "%s: IPv6 duplicate address detected!\n",
+ ifp->idev->dev->name);
+
+ 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;
+
+ printk(KERN_INFO "%s: IPv6 being disabled!\n",
+ ifp->idev->dev->name);
+ }
+ }
+
addrconf_dad_stop(ifp);
}
return 0;
}
+int __ipv6_isatap_ifid(u8 *eui, __be32 addr)
+{
+ 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;
+}
+
static int ipv6_generate_eui64(u8 *eui, struct net_device *dev)
{
switch (dev->type) {
case ARPHRD_INFINIBAND:
return addrconf_ifid_infiniband(eui, dev);
case ARPHRD_SIT:
- if (dev->priv_flags & IFF_ISATAP)
- return ipv6_isatap_eui64(eui, *(__be32 *)dev->dev_addr);
+ return addrconf_ifid_sit(eui, dev);
}
return -1;
}
.fc_expires = expires,
.fc_dst_len = plen,
.fc_flags = RTF_UP | flags,
+ .fc_nlinfo.nl_net = dev_net(dev),
+ .fc_protocol = RTPROT_KERNEL,
};
ipv6_addr_copy(&cfg.fc_dst, pfx);
.fc_ifindex = dev->ifindex,
.fc_dst_len = 8,
.fc_flags = RTF_UP,
+ .fc_nlinfo.nl_net = dev_net(dev),
};
ipv6_addr_set(&cfg.fc_dst, htonl(0xFF000000), 0, 0, 0);
.fc_ifindex = dev->ifindex,
.fc_dst_len = 96,
.fc_flags = RTF_UP | RTF_NONEXTHOP,
+ .fc_nlinfo.nl_net = dev_net(dev),
};
/* prefix length - 96 bits "::d.d.d.d" */
__u32 valid_lft;
__u32 prefered_lft;
int addr_type;
- unsigned long rt_expires;
struct inet6_dev *in6_dev;
pinfo = (struct prefix_info *) opt;
* 2) Configure prefixes with the auto flag set
*/
- /* 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.
- */
- if (valid_lft >= 0x7FFFFFFF/HZ)
- rt_expires = 0x7FFFFFFF - (0x7FFFFFFF % HZ);
- else
- rt_expires = valid_lft * HZ;
-
- /*
- * We convert this (in jiffies) to clock_t later.
- * Avoid arithmetic overflow there as well.
- * Overflow can happen only if HZ < USER_HZ.
- */
- if (HZ < USER_HZ && rt_expires > 0x7FFFFFFF / USER_HZ)
- rt_expires = 0x7FFFFFFF / USER_HZ;
-
if (pinfo->onlink) {
struct rt6_info *rt;
- rt = rt6_lookup(&pinfo->prefix, NULL, dev->ifindex, 1);
+ unsigned long rt_expires;
- if (rt && ((rt->rt6i_flags & (RTF_GATEWAY | RTF_DEFAULT)) == 0)) {
- if (rt->rt6i_flags&RTF_EXPIRES) {
- if (valid_lft == 0) {
- ip6_del_rt(rt);
- rt = NULL;
- } else {
- rt->rt6i_expires = jiffies + rt_expires;
- }
+ /* 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.
+ */
+ if (HZ > USER_HZ)
+ rt_expires = addrconf_timeout_fixup(valid_lft, HZ);
+ else
+ rt_expires = addrconf_timeout_fixup(valid_lft, USER_HZ);
+
+ if (addrconf_finite_timeout(rt_expires))
+ rt_expires *= HZ;
+
+ rt = rt6_lookup(dev_net(dev), &pinfo->prefix, NULL,
+ dev->ifindex, 1);
+
+ if (rt && addrconf_is_prefix_route(rt)) {
+ /* Autoconf prefix route */
+ if (valid_lft == 0) {
+ ip6_del_rt(rt);
+ rt = NULL;
+ } else if (addrconf_finite_timeout(rt_expires)) {
+ /* not infinity */
+ rt->rt6i_expires = jiffies + rt_expires;
+ rt->rt6i_flags |= RTF_EXPIRES;
+ } else {
+ rt->rt6i_flags &= ~RTF_EXPIRES;
+ rt->rt6i_expires = 0;
}
} else if (valid_lft) {
+ clock_t expires = 0;
+ int flags = RTF_ADDRCONF | RTF_PREFIX_RT;
+ if (addrconf_finite_timeout(rt_expires)) {
+ /* not infinity */
+ flags |= RTF_EXPIRES;
+ expires = jiffies_to_clock_t(rt_expires);
+ }
addrconf_prefix_route(&pinfo->prefix, pinfo->prefix_len,
- dev, jiffies_to_clock_t(rt_expires), RTF_ADDRCONF|RTF_EXPIRES|RTF_PREFIX_RT);
+ dev, expires, flags);
}
if (rt)
dst_release(&rt->u.dst);
struct inet6_ifaddr * ifp;
struct in6_addr addr;
int create = 0, update_lft = 0;
+ struct net *net = dev_net(dev);
if (pinfo->prefix_len == 64) {
memcpy(&addr, &pinfo->prefix, 8);
ok:
- ifp = ipv6_get_ifaddr(&addr, dev, 1);
+ ifp = ipv6_get_ifaddr(net, &addr, dev, 1);
if (ifp == NULL && valid_lft) {
int max_addresses = in6_dev->cnf.max_addresses;
#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
if (in6_dev->cnf.optimistic_dad &&
- !ipv6_devconf.forwarding)
+ !net->ipv6.devconf_all->forwarding)
addr_flags = IFA_F_OPTIMISTIC;
#endif
* lifetimes of an existing temporary address
* when processing a Prefix Information Option.
*/
+ if (ifp != ift->ifpub)
+ continue;
+
spin_lock(&ift->lock);
flags = ift->flags;
if (ift->valid_lft > valid_lft &&
* Special case for SIT interfaces where we create a new "virtual"
* device.
*/
-int addrconf_set_dstaddr(void __user *arg)
+int addrconf_set_dstaddr(struct net *net, void __user *arg)
{
struct in6_ifreq ireq;
struct net_device *dev;
if (copy_from_user(&ireq, arg, sizeof(struct in6_ifreq)))
goto err_exit;
- dev = __dev_get_by_index(&init_net, ireq.ifr6_ifindex);
+ dev = __dev_get_by_index(net, ireq.ifr6_ifindex);
err = -ENODEV;
if (dev == NULL)
#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
if (dev->type == ARPHRD_SIT) {
+ const struct net_device_ops *ops = dev->netdev_ops;
struct ifreq ifr;
- mm_segment_t oldfs;
struct ip_tunnel_parm p;
err = -EADDRNOTAVAIL;
p.iph.ihl = 5;
p.iph.protocol = IPPROTO_IPV6;
p.iph.ttl = 64;
- ifr.ifr_ifru.ifru_data = (void __user *)&p;
+ ifr.ifr_ifru.ifru_data = (__force void __user *)&p;
- oldfs = get_fs(); set_fs(KERNEL_DS);
- err = dev->do_ioctl(dev, &ifr, SIOCADDTUNNEL);
- set_fs(oldfs);
+ 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;
if (err == 0) {
err = -ENOBUFS;
- if ((dev = __dev_get_by_name(&init_net, p.name)) == NULL)
+ dev = __dev_get_by_name(net, p.name);
+ if (!dev)
goto err_exit;
err = dev_open(dev);
}
/*
* Manual configuration of address on an interface
*/
-static int inet6_addr_add(int ifindex, struct in6_addr *pfx, int plen,
- __u8 ifa_flags, __u32 prefered_lft, __u32 valid_lft)
+static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
+ unsigned int plen, __u8 ifa_flags, __u32 prefered_lft,
+ __u32 valid_lft)
{
struct inet6_ifaddr *ifp;
struct inet6_dev *idev;
struct net_device *dev;
int scope;
- u32 flags = RTF_EXPIRES;
+ u32 flags;
+ clock_t expires;
+ unsigned long timeout;
ASSERT_RTNL();
+ if (plen > 128)
+ return -EINVAL;
+
/* check the lifetime */
if (!valid_lft || prefered_lft > valid_lft)
return -EINVAL;
- if ((dev = __dev_get_by_index(&init_net, ifindex)) == NULL)
+ dev = __dev_get_by_index(net, ifindex);
+ if (!dev)
return -ENODEV;
if ((idev = addrconf_add_dev(dev)) == NULL)
scope = ipv6_addr_scope(pfx);
- if (valid_lft == INFINITY_LIFE_TIME) {
- ifa_flags |= IFA_F_PERMANENT;
+ timeout = addrconf_timeout_fixup(valid_lft, HZ);
+ if (addrconf_finite_timeout(timeout)) {
+ expires = jiffies_to_clock_t(timeout * HZ);
+ valid_lft = timeout;
+ flags = RTF_EXPIRES;
+ } else {
+ expires = 0;
flags = 0;
- } else if (valid_lft >= 0x7FFFFFFF/HZ)
- valid_lft = 0x7FFFFFFF/HZ;
+ ifa_flags |= IFA_F_PERMANENT;
+ }
- if (prefered_lft == 0)
- ifa_flags |= IFA_F_DEPRECATED;
- else if ((prefered_lft >= 0x7FFFFFFF/HZ) &&
- (prefered_lft != INFINITY_LIFE_TIME))
- prefered_lft = 0x7FFFFFFF/HZ;
+ timeout = addrconf_timeout_fixup(prefered_lft, HZ);
+ if (addrconf_finite_timeout(timeout)) {
+ if (timeout == 0)
+ ifa_flags |= IFA_F_DEPRECATED;
+ prefered_lft = timeout;
+ }
ifp = ipv6_add_addr(idev, pfx, plen, scope, ifa_flags);
spin_unlock_bh(&ifp->lock);
addrconf_prefix_route(&ifp->addr, ifp->prefix_len, dev,
- jiffies_to_clock_t(valid_lft * HZ), flags);
+ expires, flags);
/*
* Note that section 3.1 of RFC 4429 indicates
* that the Optimistic flag should not be set for
return PTR_ERR(ifp);
}
-static int inet6_addr_del(int ifindex, struct in6_addr *pfx, int plen)
+static int inet6_addr_del(struct net *net, int ifindex, struct in6_addr *pfx,
+ unsigned int plen)
{
struct inet6_ifaddr *ifp;
struct inet6_dev *idev;
struct net_device *dev;
- if ((dev = __dev_get_by_index(&init_net, ifindex)) == NULL)
+ if (plen > 128)
+ return -EINVAL;
+
+ dev = __dev_get_by_index(net, ifindex);
+ if (!dev)
return -ENODEV;
if ((idev = __in6_dev_get(dev)) == NULL)
}
-int addrconf_add_ifaddr(void __user *arg)
+int addrconf_add_ifaddr(struct net *net, void __user *arg)
{
struct in6_ifreq ireq;
int err;
return -EFAULT;
rtnl_lock();
- err = inet6_addr_add(ireq.ifr6_ifindex, &ireq.ifr6_addr, ireq.ifr6_prefixlen,
- IFA_F_PERMANENT, INFINITY_LIFE_TIME, INFINITY_LIFE_TIME);
+ err = inet6_addr_add(net, ireq.ifr6_ifindex, &ireq.ifr6_addr,
+ ireq.ifr6_prefixlen, IFA_F_PERMANENT,
+ INFINITY_LIFE_TIME, INFINITY_LIFE_TIME);
rtnl_unlock();
return err;
}
-int addrconf_del_ifaddr(void __user *arg)
+int addrconf_del_ifaddr(struct net *net, void __user *arg)
{
struct in6_ifreq ireq;
int err;
return -EFAULT;
rtnl_lock();
- err = inet6_addr_del(ireq.ifr6_ifindex, &ireq.ifr6_addr, ireq.ifr6_prefixlen);
+ err = inet6_addr_del(net, ireq.ifr6_ifindex, &ireq.ifr6_addr,
+ ireq.ifr6_prefixlen);
rtnl_unlock();
return err;
}
+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);
+ }
+}
+
#if defined(CONFIG_IPV6_SIT) || defined(CONFIG_IPV6_SIT_MODULE)
static void sit_add_v4_addrs(struct inet6_dev *idev)
{
- struct inet6_ifaddr * ifp;
struct in6_addr addr;
struct net_device *dev;
+ struct net *net = dev_net(idev->dev);
int scope;
ASSERT_RTNL();
}
if (addr.s6_addr32[3]) {
- ifp = ipv6_add_addr(idev, &addr, 128, 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);
- }
+ add_addr(idev, &addr, 128, scope);
return;
}
- for_each_netdev(&init_net, dev) {
+ for_each_netdev(net, dev) {
struct in_device * in_dev = __in_dev_get_rtnl(dev);
if (in_dev && (dev->flags & IFF_UP)) {
struct in_ifaddr * ifa;
else
plen = 96;
- ifp = ipv6_add_addr(idev, &addr, plen, flag,
- 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);
- }
+ add_addr(idev, &addr, plen, flag);
}
}
}
static void init_loopback(struct net_device *dev)
{
struct inet6_dev *idev;
- struct inet6_ifaddr * ifp;
/* ::1 */
return;
}
- ifp = ipv6_add_addr(idev, &in6addr_loopback, 128, IFA_HOST, 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);
- }
+ add_addr(idev, &in6addr_loopback, 128, IFA_HOST);
}
static void addrconf_add_linklocal(struct inet6_dev *idev, struct in6_addr *addr)
#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
if (idev->cnf.optimistic_dad &&
- !ipv6_devconf.forwarding)
+ !dev_net(idev->dev)->ipv6.devconf_all->forwarding)
addr_flags |= IFA_F_OPTIMISTIC;
#endif
static void ip6_tnl_add_linklocal(struct inet6_dev *idev)
{
struct net_device *link_dev;
+ struct net *net = dev_net(idev->dev);
/* first try to inherit the link-local address from the link device */
if (idev->dev->iflink &&
- (link_dev = __dev_get_by_index(&init_net, idev->dev->iflink))) {
+ (link_dev = __dev_get_by_index(net, idev->dev->iflink))) {
if (!ipv6_inherit_linklocal(idev, link_dev))
return;
}
/* then try to inherit it from any device */
- for_each_netdev(&init_net, link_dev) {
+ for_each_netdev(net, link_dev) {
if (!ipv6_inherit_linklocal(idev, link_dev))
return;
}
int run_pending = 0;
int err;
- if (dev->nd_net != &init_net)
- return NOTIFY_DONE;
-
switch(event) {
case NETDEV_REGISTER:
if (!idev && dev->mtu >= IPV6_MIN_MTU) {
if (!idev && dev->mtu >= IPV6_MIN_MTU)
idev = ipv6_add_dev(dev);
- if (idev)
+ if (idev) {
idev->if_flags |= IF_READY;
+ run_pending = 1;
+ }
} else {
if (!addrconf_qdisc_ok(dev)) {
/* device is still not ready. */
{
struct inet6_dev *idev;
struct inet6_ifaddr *ifa, **bifa;
+ struct net *net = dev_net(dev);
int i;
ASSERT_RTNL();
- if (dev == init_net.loopback_dev && how == 1)
- how = 0;
-
- rt6_ifdown(dev);
+ rt6_ifdown(net, dev);
neigh_ifdown(&nd_tbl, dev);
idev = __in6_dev_get(dev);
/* Step 1: remove reference to ipv6 device from parent device.
Do not dev_put!
*/
- if (how == 1) {
+ if (how) {
idev->dead = 1;
/* protected by rtnl_lock */
write_lock_bh(&idev->lock);
/* Step 3: clear flags for stateless addrconf */
- if (how != 1)
+ if (!how)
idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
/* Step 4: clear address list */
#ifdef CONFIG_IPV6_PRIVACY
- if (how == 1 && del_timer(&idev->regen_timer))
+ if (how && del_timer(&idev->regen_timer))
in6_dev_put(idev);
/* clear tempaddr list */
/* Step 5: Discard multicast list */
- if (how == 1)
+ if (how)
ipv6_mc_destroy_dev(idev);
else
ipv6_mc_down(idev);
/* Shot the device (if unregistered) */
- if (how == 1) {
+ if (how) {
addrconf_sysctl_unregister(idev);
neigh_parms_release(&nd_tbl, idev->nd_parms);
neigh_ifdown(&nd_tbl, dev);
spin_lock(&ifp->lock);
if (ifp->probes++ < ifp->idev->cnf.rtr_solicits) {
- struct in6_addr all_routers;
-
/* 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_interval);
spin_unlock(&ifp->lock);
- ipv6_addr_all_routers(&all_routers);
-
- ndisc_send_rs(ifp->idev->dev, &ifp->addr, &all_routers);
+ ndisc_send_rs(ifp->idev->dev, &ifp->addr, &in6addr_linklocal_allrouters);
} else {
spin_unlock(&ifp->lock);
/*
spin_lock_bh(&ifp->lock);
if (dev->flags&(IFF_NOARP|IFF_LOOPBACK) ||
+ idev->cnf.accept_dad < 1 ||
!(ifp->flags&IFA_F_TENTATIVE) ||
ifp->flags & IFA_F_NODAD) {
ifp->flags &= ~(IFA_F_TENTATIVE|IFA_F_OPTIMISTIC);
{
struct inet6_ifaddr *ifp = (struct inet6_ifaddr *) data;
struct inet6_dev *idev = ifp->idev;
- struct in6_addr unspec;
struct in6_addr mcaddr;
read_lock_bh(&idev->lock);
read_unlock_bh(&idev->lock);
/* send a neighbour solicitation for our addr */
- memset(&unspec, 0, sizeof(unspec));
addrconf_addr_solict_mult(&ifp->addr, &mcaddr);
- ndisc_send_ns(ifp->idev->dev, NULL, &ifp->addr, &mcaddr, &unspec);
+ ndisc_send_ns(ifp->idev->dev, NULL, &ifp->addr, &mcaddr, &in6addr_any);
out:
in6_ifa_put(ifp);
}
ifp->idev->cnf.rtr_solicits > 0 &&
(dev->flags&IFF_LOOPBACK) == 0 &&
(ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) {
- struct in6_addr all_routers;
-
- ipv6_addr_all_routers(&all_routers);
-
/*
* 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
*/
- ndisc_send_rs(ifp->idev->dev, &ifp->addr, &all_routers);
+ ndisc_send_rs(ifp->idev->dev, &ifp->addr, &in6addr_linklocal_allrouters);
spin_lock_bh(&ifp->lock);
ifp->probes = 1;
{
struct inet6_ifaddr *ifa = NULL;
struct if6_iter_state *state = seq->private;
- struct net *net = state->p.net;
+ struct net *net = seq_file_net(seq);
for (state->bucket = 0; state->bucket < IN6_ADDR_HSIZE; ++state->bucket) {
ifa = inet6_addr_lst[state->bucket];
- while (ifa && ifa->idev->dev->nd_net != net)
+ while (ifa && !net_eq(dev_net(ifa->idev->dev), net))
ifa = ifa->lst_next;
if (ifa)
break;
static struct inet6_ifaddr *if6_get_next(struct seq_file *seq, struct inet6_ifaddr *ifa)
{
struct if6_iter_state *state = seq->private;
- struct net *net = state->p.net;
+ struct net *net = seq_file_net(seq);
ifa = ifa->lst_next;
try_again:
if (ifa) {
- if (ifa->idev->dev->nd_net != net) {
+ if (!net_eq(dev_net(ifa->idev->dev), net)) {
ifa = ifa->lst_next;
goto try_again;
}
}
static void *if6_seq_start(struct seq_file *seq, loff_t *pos)
+ __acquires(addrconf_hash_lock)
{
read_lock_bh(&addrconf_hash_lock);
return if6_get_idx(seq, *pos);
}
static void if6_seq_stop(struct seq_file *seq, void *v)
+ __releases(addrconf_hash_lock)
{
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;
- seq_printf(seq,
- NIP6_SEQFMT " %02x %02x %02x %02x %8s\n",
- NIP6(ifp->addr),
+ seq_printf(seq, "%pi6 %02x %02x %02x %02x %8s\n",
+ &ifp->addr,
ifp->idev->dev->ifindex,
ifp->prefix_len,
ifp->scope,
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
/* Check if address is a home address configured on any interface. */
-int ipv6_chk_home_addr(struct in6_addr *addr)
+int ipv6_chk_home_addr(struct net *net, struct in6_addr *addr)
{
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) {
- if (ipv6_addr_cmp(&ifp->addr, addr) == 0 &&
+ if (!net_eq(dev_net(ifp->idev->dev), net))
+ continue;
+ if (ipv6_addr_equal(&ifp->addr, addr) &&
(ifp->flags & IFA_F_HOMEADDRESS)) {
ret = 1;
break;
static int
inet6_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
- struct net *net = skb->sk->sk_net;
+ struct net *net = sock_net(skb->sk);
struct ifaddrmsg *ifm;
struct nlattr *tb[IFA_MAX+1];
struct in6_addr *pfx;
int err;
- if (net != &init_net)
- return -EINVAL;
-
err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv6_policy);
if (err < 0)
return err;
if (pfx == NULL)
return -EINVAL;
- return inet6_addr_del(ifm->ifa_index, pfx, ifm->ifa_prefixlen);
+ return inet6_addr_del(net, ifm->ifa_index, pfx, ifm->ifa_prefixlen);
}
static int inet6_addr_modify(struct inet6_ifaddr *ifp, u8 ifa_flags,
u32 prefered_lft, u32 valid_lft)
{
- u32 flags = RTF_EXPIRES;
+ u32 flags;
+ clock_t expires;
+ unsigned long timeout;
if (!valid_lft || (prefered_lft > valid_lft))
return -EINVAL;
- if (valid_lft == INFINITY_LIFE_TIME) {
- ifa_flags |= IFA_F_PERMANENT;
+ timeout = addrconf_timeout_fixup(valid_lft, HZ);
+ if (addrconf_finite_timeout(timeout)) {
+ expires = jiffies_to_clock_t(timeout * HZ);
+ valid_lft = timeout;
+ flags = RTF_EXPIRES;
+ } else {
+ expires = 0;
flags = 0;
- } else if (valid_lft >= 0x7FFFFFFF/HZ)
- valid_lft = 0x7FFFFFFF/HZ;
+ ifa_flags |= IFA_F_PERMANENT;
+ }
- if (prefered_lft == 0)
- ifa_flags |= IFA_F_DEPRECATED;
- else if ((prefered_lft >= 0x7FFFFFFF/HZ) &&
- (prefered_lft != INFINITY_LIFE_TIME))
- prefered_lft = 0x7FFFFFFF/HZ;
+ timeout = addrconf_timeout_fixup(prefered_lft, HZ);
+ if (addrconf_finite_timeout(timeout)) {
+ if (timeout == 0)
+ ifa_flags |= IFA_F_DEPRECATED;
+ prefered_lft = timeout;
+ }
spin_lock_bh(&ifp->lock);
ifp->flags = (ifp->flags & ~(IFA_F_DEPRECATED | IFA_F_PERMANENT | IFA_F_NODAD | IFA_F_HOMEADDRESS)) | ifa_flags;
ipv6_ifa_notify(0, ifp);
addrconf_prefix_route(&ifp->addr, ifp->prefix_len, ifp->idev->dev,
- jiffies_to_clock_t(valid_lft * HZ), flags);
+ expires, flags);
addrconf_verify(0);
return 0;
static int
inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
- struct net *net = skb->sk->sk_net;
+ struct net *net = sock_net(skb->sk);
struct ifaddrmsg *ifm;
struct nlattr *tb[IFA_MAX+1];
struct in6_addr *pfx;
u8 ifa_flags;
int err;
- if (net != &init_net)
- return -EINVAL;
-
err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv6_policy);
if (err < 0)
return err;
valid_lft = INFINITY_LIFE_TIME;
}
- dev = __dev_get_by_index(&init_net, ifm->ifa_index);
+ dev = __dev_get_by_index(net, ifm->ifa_index);
if (dev == NULL)
return -ENODEV;
/* We ignore other flags so far. */
ifa_flags = ifm->ifa_flags & (IFA_F_NODAD | IFA_F_HOMEADDRESS);
- ifa = ipv6_get_ifaddr(pfx, dev, 1);
+ ifa = ipv6_get_ifaddr(net, pfx, dev, 1);
if (ifa == NULL) {
/*
* It would be best to check for !NLM_F_CREATE here but
* userspace alreay relies on not having to provide this.
*/
- return inet6_addr_add(ifm->ifa_index, pfx, ifm->ifa_prefixlen,
- ifa_flags, preferred_lft, valid_lft);
+ return inet6_addr_add(net, ifm->ifa_index, pfx,
+ ifm->ifa_prefixlen, ifa_flags,
+ preferred_lft, valid_lft);
}
if (nlh->nlmsg_flags & NLM_F_EXCL ||
struct inet6_ifaddr *ifa;
struct ifmcaddr6 *ifmca;
struct ifacaddr6 *ifaca;
+ struct net *net = sock_net(skb->sk);
s_idx = cb->args[0];
s_ip_idx = ip_idx = cb->args[1];
idx = 0;
- for_each_netdev(&init_net, dev) {
+ for_each_netdev(net, dev) {
if (idx < s_idx)
goto cont;
if (idx > s_idx)
ifa = ifa->if_next, ip_idx++) {
if (ip_idx < s_ip_idx)
continue;
- if ((err = inet6_fill_ifaddr(skb, ifa,
- NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, RTM_NEWADDR,
- NLM_F_MULTI)) <= 0)
- goto done;
+ err = inet6_fill_ifaddr(skb, ifa,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+ RTM_NEWADDR,
+ NLM_F_MULTI);
}
break;
case MULTICAST_ADDR:
ifmca = ifmca->next, ip_idx++) {
if (ip_idx < s_ip_idx)
continue;
- if ((err = inet6_fill_ifmcaddr(skb, ifmca,
- NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, RTM_GETMULTICAST,
- NLM_F_MULTI)) <= 0)
- goto done;
+ err = inet6_fill_ifmcaddr(skb, ifmca,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+ RTM_GETMULTICAST,
+ NLM_F_MULTI);
}
break;
case ANYCAST_ADDR:
ifaca = ifaca->aca_next, ip_idx++) {
if (ip_idx < s_ip_idx)
continue;
- if ((err = inet6_fill_ifacaddr(skb, ifaca,
- NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, RTM_GETANYCAST,
- NLM_F_MULTI)) <= 0)
- goto done;
+ err = inet6_fill_ifacaddr(skb, ifaca,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq,
+ RTM_GETANYCAST,
+ NLM_F_MULTI);
}
break;
default:
}
read_unlock_bh(&idev->lock);
in6_dev_put(idev);
+
+ if (err <= 0)
+ break;
cont:
idx++;
}
-done:
- if (err <= 0) {
- read_unlock_bh(&idev->lock);
- in6_dev_put(idev);
- }
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)
{
- struct net *net = skb->sk->sk_net;
enum addr_type_t type = UNICAST_ADDR;
- if (net != &init_net)
- return 0;
-
return inet6_dump_addr(skb, cb, type);
}
static int inet6_dump_ifmcaddr(struct sk_buff *skb, struct netlink_callback *cb)
{
- struct net *net = skb->sk->sk_net;
enum addr_type_t type = MULTICAST_ADDR;
- if (net != &init_net)
- return 0;
-
return inet6_dump_addr(skb, cb, type);
}
static int inet6_dump_ifacaddr(struct sk_buff *skb, struct netlink_callback *cb)
{
- struct net *net = skb->sk->sk_net;
enum addr_type_t type = ANYCAST_ADDR;
- if (net != &init_net)
- return 0;
-
return inet6_dump_addr(skb, cb, type);
}
static int inet6_rtm_getaddr(struct sk_buff *in_skb, struct nlmsghdr* nlh,
void *arg)
{
- struct net *net = in_skb->sk->sk_net;
+ struct net *net = sock_net(in_skb->sk);
struct ifaddrmsg *ifm;
struct nlattr *tb[IFA_MAX+1];
struct in6_addr *addr = NULL;
struct sk_buff *skb;
int err;
- if (net != &init_net)
- return -EINVAL;
-
err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFA_MAX, ifa_ipv6_policy);
if (err < 0)
goto errout;
ifm = nlmsg_data(nlh);
if (ifm->ifa_index)
- dev = __dev_get_by_index(&init_net, ifm->ifa_index);
+ dev = __dev_get_by_index(net, ifm->ifa_index);
- if ((ifa = ipv6_get_ifaddr(addr, dev, 1)) == NULL) {
+ if ((ifa = ipv6_get_ifaddr(net, addr, dev, 1)) == NULL) {
err = -EADDRNOTAVAIL;
goto errout;
}
kfree_skb(skb);
goto errout_ifa;
}
- err = rtnl_unicast(skb, &init_net, NETLINK_CB(in_skb).pid);
+ err = rtnl_unicast(skb, net, NETLINK_CB(in_skb).pid);
errout_ifa:
in6_ifa_put(ifa);
errout:
static void inet6_ifa_notify(int event, struct inet6_ifaddr *ifa)
{
struct sk_buff *skb;
+ struct net *net = dev_net(ifa->idev->dev);
int err = -ENOBUFS;
skb = nlmsg_new(inet6_ifaddr_msgsize(), GFP_ATOMIC);
kfree_skb(skb);
goto errout;
}
- err = rtnl_notify(skb, &init_net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+ rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+ return;
errout:
if (err < 0)
- rtnl_set_sk_err(&init_net, RTNLGRP_IPV6_IFADDR, err);
+ rtnl_set_sk_err(net, RTNLGRP_IPV6_IFADDR, err);
}
static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
array[DEVCONF_OPTIMISTIC_DAD] = cnf->optimistic_dad;
#endif
+#ifdef CONFIG_IPV6_MROUTE
+ array[DEVCONF_MC_FORWARDING] = cnf->mc_forwarding;
+#endif
+ array[DEVCONF_DISABLE_IPV6] = cnf->disable_ipv6;
+ array[DEVCONF_ACCEPT_DAD] = cnf->accept_dad;
}
static inline size_t inet6_if_nlmsg_size(void)
static int inet6_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
{
- struct net *net = skb->sk->sk_net;
+ struct net *net = sock_net(skb->sk);
int idx, err;
int s_idx = cb->args[0];
struct net_device *dev;
struct inet6_dev *idev;
- if (net != &init_net)
- return 0;
-
read_lock(&dev_base_lock);
idx = 0;
- for_each_netdev(&init_net, dev) {
+ for_each_netdev(net, dev) {
if (idx < s_idx)
goto cont;
if ((idev = in6_dev_get(dev)) == NULL)
void inet6_ifinfo_notify(int event, struct inet6_dev *idev)
{
struct sk_buff *skb;
+ struct net *net = dev_net(idev->dev);
int err = -ENOBUFS;
skb = nlmsg_new(inet6_if_nlmsg_size(), GFP_ATOMIC);
kfree_skb(skb);
goto errout;
}
- err = rtnl_notify(skb, &init_net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+ rtnl_notify(skb, net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+ return;
errout:
if (err < 0)
- rtnl_set_sk_err(&init_net, RTNLGRP_IPV6_IFADDR, err);
+ rtnl_set_sk_err(net, RTNLGRP_IPV6_IFADDR, err);
}
static inline size_t inet6_prefix_nlmsg_size(void)
struct prefix_info *pinfo)
{
struct sk_buff *skb;
+ struct net *net = dev_net(idev->dev);
int err = -ENOBUFS;
skb = nlmsg_new(inet6_prefix_nlmsg_size(), GFP_ATOMIC);
kfree_skb(skb);
goto errout;
}
- err = rtnl_notify(skb, &init_net, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
+ rtnl_notify(skb, net, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
+ return;
errout:
if (err < 0)
- rtnl_set_sk_err(&init_net, RTNLGRP_IPV6_PREFIX, err);
+ rtnl_set_sk_err(net, RTNLGRP_IPV6_PREFIX, err);
}
static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
if (write)
- addrconf_fixup_forwarding(ctl, valp, val);
+ ret = addrconf_fixup_forwarding(ctl, valp, val);
return ret;
}
static int addrconf_sysctl_forward_strategy(ctl_table *table,
- int __user *name, int nlen,
void __user *oldval,
size_t __user *oldlenp,
void __user *newval, size_t newlen)
}
*valp = new;
- addrconf_fixup_forwarding(table, valp, val);
- return 1;
+ return addrconf_fixup_forwarding(table, valp, val);
}
static struct addrconf_sysctl_table
{
struct ctl_table_header *sysctl_header;
- ctl_table addrconf_vars[__NET_IPV6_MAX];
+ ctl_table addrconf_vars[DEVCONF_MAX+1];
char *dev_name;
} addrconf_sysctl __read_mostly = {
.sysctl_header = NULL,
.data = &ipv6_devconf.forwarding,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &addrconf_sysctl_forward,
- .strategy = &addrconf_sysctl_forward_strategy,
+ .proc_handler = addrconf_sysctl_forward,
+ .strategy = addrconf_sysctl_forward_strategy,
},
{
.ctl_name = NET_IPV6_HOP_LIMIT,
.data = &ipv6_devconf.mtu6,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_ACCEPT_RA,
.data = &ipv6_devconf.accept_ra,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_ACCEPT_REDIRECTS,
.data = &ipv6_devconf.accept_redirects,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_AUTOCONF,
.data = &ipv6_devconf.autoconf,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_DAD_TRANSMITS,
.data = &ipv6_devconf.dad_transmits,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_RTR_SOLICITS,
.data = &ipv6_devconf.rtr_solicits,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_RTR_SOLICIT_INTERVAL,
.data = &ipv6_devconf.rtr_solicit_interval,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- .strategy = &sysctl_jiffies,
+ .proc_handler = proc_dointvec_jiffies,
+ .strategy = sysctl_jiffies,
},
{
.ctl_name = NET_IPV6_RTR_SOLICIT_DELAY,
.data = &ipv6_devconf.rtr_solicit_delay,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- .strategy = &sysctl_jiffies,
+ .proc_handler = proc_dointvec_jiffies,
+ .strategy = sysctl_jiffies,
},
{
.ctl_name = NET_IPV6_FORCE_MLD_VERSION,
.data = &ipv6_devconf.force_mld_version,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
#ifdef CONFIG_IPV6_PRIVACY
{
.data = &ipv6_devconf.use_tempaddr,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_TEMP_VALID_LFT,
.data = &ipv6_devconf.temp_valid_lft,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_TEMP_PREFERED_LFT,
.data = &ipv6_devconf.temp_prefered_lft,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_REGEN_MAX_RETRY,
.data = &ipv6_devconf.regen_max_retry,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_MAX_DESYNC_FACTOR,
.data = &ipv6_devconf.max_desync_factor,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
#endif
{
.data = &ipv6_devconf.max_addresses,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_ACCEPT_RA_DEFRTR,
.data = &ipv6_devconf.accept_ra_defrtr,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_ACCEPT_RA_PINFO,
.data = &ipv6_devconf.accept_ra_pinfo,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
#ifdef CONFIG_IPV6_ROUTER_PREF
{
.data = &ipv6_devconf.accept_ra_rtr_pref,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_RTR_PROBE_INTERVAL,
.data = &ipv6_devconf.rtr_probe_interval,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_jiffies,
- .strategy = &sysctl_jiffies,
+ .proc_handler = proc_dointvec_jiffies,
+ .strategy = sysctl_jiffies,
},
#ifdef CONFIG_IPV6_ROUTE_INFO
{
.data = &ipv6_devconf.accept_ra_rt_info_max_plen,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
#endif
#endif
.data = &ipv6_devconf.proxy_ndp,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
{
.ctl_name = NET_IPV6_ACCEPT_SOURCE_ROUTE,
.data = &ipv6_devconf.accept_source_route,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
{
.data = &ipv6_devconf.optimistic_dad,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec,
+ .proc_handler = proc_dointvec,
},
#endif
+#ifdef CONFIG_IPV6_MROUTE
+ {
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "mc_forwarding",
+ .data = &ipv6_devconf.mc_forwarding,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = proc_dointvec,
+ },
+#endif
+ {
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "disable_ipv6",
+ .data = &ipv6_devconf.disable_ipv6,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "accept_dad",
+ .data = &ipv6_devconf.accept_dad,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
{
.ctl_name = 0, /* sentinel */
}
neigh_sysctl_register(idev->dev, idev->nd_parms, NET_IPV6,
NET_IPV6_NEIGH, "ipv6",
&ndisc_ifinfo_sysctl_change,
- NULL);
- __addrconf_sysctl_register(idev->dev->nd_net, idev->dev->name,
+ ndisc_ifinfo_sysctl_strategy);
+ __addrconf_sysctl_register(dev_net(idev->dev), idev->dev->name,
idev->dev->ifindex, idev, &idev->cnf);
}
if (err)
goto errlo;
- ip6_null_entry.u.dst.dev = init_net.loopback_dev;
- ip6_null_entry.rt6i_idev = in6_dev_get(init_net.loopback_dev);
-#ifdef CONFIG_IPV6_MULTIPLE_TABLES
- ip6_prohibit_entry.u.dst.dev = init_net.loopback_dev;
- ip6_prohibit_entry.rt6i_idev = in6_dev_get(init_net.loopback_dev);
- ip6_blk_hole_entry.u.dst.dev = init_net.loopback_dev;
- ip6_blk_hole_entry.rt6i_idev = in6_dev_get(init_net.loopback_dev);
-#endif
-
register_netdevice_notifier(&ipv6_dev_notf);
addrconf_verify(0);
void addrconf_cleanup(void)
{
- struct net_device *dev;
struct inet6_ifaddr *ifa;
+ struct net_device *dev;
int i;
unregister_netdevice_notifier(&ipv6_dev_notf);
-
unregister_pernet_subsys(&addrconf_ops);
rtnl_lock();
- /*
- * clean dev list.
- */
-
+ /* clean dev list */
for_each_netdev(&init_net, dev) {
if (__in6_dev_get(dev) == NULL)
continue;
/*
* Check hash table.
*/
-
write_lock_bh(&addrconf_hash_lock);
for (i=0; i < IN6_ADDR_HSIZE; i++) {
for (ifa=inet6_addr_lst[i]; ifa; ) {
write_unlock_bh(&addrconf_hash_lock);
del_timer(&addr_chk_timer);
-
rtnl_unlock();
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff