#define TIME_DELTA(a,b) ((unsigned long)((long)(a) - (long)(b)))
#ifdef CONFIG_SYSCTL
-static void addrconf_sysctl_register(struct inet6_dev *idev, struct ipv6_devconf *p);
-static void addrconf_sysctl_unregister(struct ipv6_devconf *p);
+static void addrconf_sysctl_register(struct inet6_dev *idev);
+static void addrconf_sysctl_unregister(struct inet6_dev *idev);
+#else
+static inline void addrconf_sysctl_register(struct inet6_dev *idev)
+{
+}
+
+static inline void addrconf_sysctl_unregister(struct inet6_dev *idev)
+{
+}
#endif
#ifdef CONFIG_IPV6_PRIVACY
static void inet6_prefix_notify(int event, struct inet6_dev *idev,
struct prefix_info *pinfo);
-static int ipv6_chk_same_addr(const struct in6_addr *addr, struct net_device *dev);
+static int ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr,
+ struct net_device *dev);
static ATOMIC_NOTIFIER_HEAD(inet6addr_chain);
static int snmp6_alloc_dev(struct inet6_dev *idev)
{
if (snmp_mib_init((void **)idev->stats.ipv6,
- sizeof(struct ipstats_mib),
- __alignof__(struct ipstats_mib)) < 0)
+ sizeof(struct ipstats_mib)) < 0)
goto err_ip;
if (snmp_mib_init((void **)idev->stats.icmpv6,
- sizeof(struct icmpv6_mib),
- __alignof__(struct icmpv6_mib)) < 0)
+ sizeof(struct icmpv6_mib)) < 0)
goto err_icmp;
if (snmp_mib_init((void **)idev->stats.icmpv6msg,
- sizeof(struct icmpv6msg_mib),
- __alignof__(struct icmpv6msg_mib)) < 0)
+ sizeof(struct icmpv6msg_mib)) < 0)
goto err_icmpmsg;
return 0;
rwlock_init(&ndev->lock);
ndev->dev = dev;
- memcpy(&ndev->cnf, &ipv6_devconf_dflt, sizeof(ndev->cnf));
+ memcpy(&ndev->cnf, dev->nd_net->ipv6.devconf_dflt, sizeof(ndev->cnf));
ndev->cnf.mtu6 = dev->mtu;
ndev->cnf.sysctl = NULL;
ndev->nd_parms = neigh_parms_alloc(dev, &nd_tbl);
"%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);
ipv6_mc_init_dev(ndev);
ndev->tstamp = jiffies;
-#ifdef CONFIG_SYSCTL
- neigh_sysctl_register(dev, ndev->nd_parms, NET_IPV6,
- NET_IPV6_NEIGH, "ipv6",
- &ndisc_ifinfo_sysctl_change,
- NULL);
- addrconf_sysctl_register(ndev, &ndev->cnf);
-#endif
+ addrconf_sysctl_register(ndev);
/* protected by rtnl_lock */
rcu_assign_pointer(dev->ip6_ptr, ndev);
}
-static void addrconf_forward_change(void)
+static void addrconf_forward_change(struct net *net, __s32 newf)
{
struct net_device *dev;
struct inet6_dev *idev;
read_lock(&dev_base_lock);
- for_each_netdev(&init_net, dev) {
+ for_each_netdev(net, dev) {
rcu_read_lock();
idev = __in6_dev_get(dev);
if (idev) {
- int changed = (!idev->cnf.forwarding) ^ (!ipv6_devconf.forwarding);
- idev->cnf.forwarding = ipv6_devconf.forwarding;
+ int changed = (!idev->cnf.forwarding) ^ (!newf);
+ idev->cnf.forwarding = newf;
if (changed)
dev_forward_change(idev);
}
}
read_unlock(&dev_base_lock);
}
+
+static void 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;
+
+ if (p == &net->ipv6.devconf_all->forwarding) {
+ __s32 newf = net->ipv6.devconf_all->forwarding;
+ net->ipv6.devconf_dflt->forwarding = newf;
+ addrconf_forward_change(net, newf);
+ } else if ((!*p) ^ (!old))
+ dev_forward_change((struct inet6_dev *)table->extra1);
+
+ if (*p)
+ rt6_purge_dflt_routers();
+}
#endif
/* Nobody refers to this ifaddr, destroy it */
write_lock(&addrconf_hash_lock);
/* Ignore adding duplicate addresses on an interface */
- if (ipv6_chk_same_addr(addr, idev->dev)) {
+ if (ipv6_chk_same_addr(&init_net, addr, idev->dev)) {
ADBG(("ipv6_add_addr: already assigned\n"));
err = -EEXIST;
goto out;
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)
return 0;
}
-/* static matching label */
-static inline int ipv6_addr_label(const struct in6_addr *addr, int type,
- int ifindex)
-{
- /*
- * prefix (longest match) label
- * -----------------------------
- * ::1/128 0
- * ::/0 1
- * 2002::/16 2
- * ::/96 3
- * ::ffff:0:0/96 4
- * fc00::/7 5
- * 2001::/32 6
- */
- if (type & IPV6_ADDR_LOOPBACK)
- return 0;
- else if (type & IPV6_ADDR_COMPATv4)
- return 3;
- else if (type & IPV6_ADDR_MAPPED)
- return 4;
- else if (addr->s6_addr32[0] == htonl(0x20010000))
- return 6;
- else if (addr->s6_addr16[0] == htons(0x2002))
- return 2;
- else if ((addr->s6_addr[0] & 0xfe) == 0xfc)
- return 5;
- return 1;
-}
-
int ipv6_dev_get_saddr(struct net_device *daddr_dev,
struct in6_addr *daddr, struct in6_addr *saddr)
{
return cnt;
}
-int ipv6_chk_addr(struct in6_addr *addr, struct net_device *dev, int strict)
+int ipv6_chk_addr(struct net *net, 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 (ifp->idev->dev->nd_net != net)
+ continue;
if (ipv6_addr_equal(&ifp->addr, addr) &&
!(ifp->flags&IFA_F_TENTATIVE)) {
if (dev == NULL || ifp->idev->dev == dev ||
read_unlock_bh(&addrconf_hash_lock);
return ifp != NULL;
}
-
EXPORT_SYMBOL(ipv6_chk_addr);
static
-int ipv6_chk_same_addr(const struct in6_addr *addr, struct net_device *dev)
+int ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr,
+ struct net_device *dev)
{
struct inet6_ifaddr * ifp;
u8 hash = ipv6_addr_hash(addr);
for(ifp = inet6_addr_lst[hash]; ifp; ifp=ifp->lst_next) {
+ if (ifp->idev->dev->nd_net != net)
+ continue;
if (ipv6_addr_equal(&ifp->addr, addr)) {
if (dev == NULL || ifp->idev->dev == dev)
break;
return ifp != NULL;
}
-struct inet6_ifaddr * ipv6_get_ifaddr(struct in6_addr *addr, struct net_device *dev, int strict)
+struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, 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 (ifp->idev->dev->nd_net != net)
+ continue;
if (ipv6_addr_equal(&ifp->addr, addr)) {
if (dev == NULL || ifp->idev->dev == dev ||
!(ifp->scope&(IFA_LINK|IFA_HOST) || strict)) {
return addrconf_ifid_arcnet(eui, dev);
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 -1;
}
*
* - Reserved subnet anycast (RFC 2526)
* 11111101 11....11 1xxxxxxx
- * - ISATAP (draft-ietf-ngtrans-isatap-13.txt) 5.1
+ * - ISATAP (RFC4214) 6.1
* 00-00-5E-FE-xx-xx-xx-xx
* - value 0
* - XXX: already assigned to an address on the device
.fc_expires = expires,
.fc_dst_len = plen,
.fc_flags = RTF_UP | flags,
+ .fc_nlinfo.nl_net = &init_net,
};
ipv6_addr_copy(&cfg.fc_dst, pfx);
.fc_ifindex = dev->ifindex,
.fc_dst_len = 8,
.fc_flags = RTF_UP,
+ .fc_nlinfo.nl_net = &init_net,
};
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 = &init_net,
};
/* prefix length - 96 bits "::d.d.d.d" */
ok:
- ifp = ipv6_get_ifaddr(&addr, dev, 1);
+ ifp = ipv6_get_ifaddr(&init_net, &addr, dev, 1);
if (ifp == NULL && valid_lft) {
int max_addresses = in6_dev->cnf.max_addresses;
* 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 &&
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);
return;
}
+ if (dev->priv_flags & IFF_ISATAP) {
+ struct in6_addr addr;
+
+ ipv6_addr_set(&addr, htonl(0xFE800000), 0, 0, 0);
+ addrconf_prefix_route(&addr, 64, dev, 0, 0);
+ if (!ipv6_generate_eui64(addr.s6_addr + 8, dev))
+ addrconf_add_linklocal(idev, &addr);
+ return;
+ }
+
sit_add_v4_addrs(idev);
if (dev->flags&IFF_POINTOPOINT) {
case NETDEV_CHANGENAME:
if (idev) {
snmp6_unregister_dev(idev);
-#ifdef CONFIG_SYSCTL
- addrconf_sysctl_unregister(&idev->cnf);
- neigh_sysctl_unregister(idev->nd_parms);
- neigh_sysctl_register(dev, idev->nd_parms,
- NET_IPV6, NET_IPV6_NEIGH, "ipv6",
- &ndisc_ifinfo_sysctl_change,
- NULL);
- addrconf_sysctl_register(idev, &idev->cnf);
-#endif
+ addrconf_sysctl_unregister(idev);
+ addrconf_sysctl_register(idev);
err = snmp6_register_dev(idev);
if (err)
return notifier_from_errno(err);
/* Shot the device (if unregistered) */
if (how == 1) {
-#ifdef CONFIG_SYSCTL
- addrconf_sysctl_unregister(&idev->cnf);
- neigh_sysctl_unregister(idev->nd_parms);
-#endif
+ addrconf_sysctl_unregister(idev);
neigh_parms_release(&nd_tbl, idev->nd_parms);
neigh_ifdown(&nd_tbl, dev);
in6_dev_put(idev);
#ifdef CONFIG_PROC_FS
struct if6_iter_state {
+ struct seq_net_private p;
int bucket;
};
{
struct inet6_ifaddr *ifa = NULL;
struct if6_iter_state *state = seq->private;
+ struct net *net = state->p.net;
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)
+ 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;
ifa = ifa->lst_next;
try_again:
+ if (ifa) {
+ if (ifa->idev->dev->nd_net != net) {
+ ifa = ifa->lst_next;
+ goto try_again;
+ }
+ }
+
if (!ifa && ++state->bucket < IN6_ADDR_HSIZE) {
ifa = inet6_addr_lst[state->bucket];
goto try_again;
}
+
return ifa;
}
}
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_open(struct inode *inode, struct file *file)
{
- return seq_open_private(file, &if6_seq_ops,
- sizeof(struct if6_iter_state));
+ return seq_open_net(inode, file, &if6_seq_ops,
+ sizeof(struct if6_iter_state));
}
static const struct file_operations if6_fops = {
.open = if6_seq_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release_private,
+ .release = seq_release_net,
};
-int __init if6_proc_init(void)
+static int if6_proc_net_init(struct net *net)
{
- if (!proc_net_fops_create(&init_net, "if_inet6", S_IRUGO, &if6_fops))
+ if (!proc_net_fops_create(net, "if_inet6", S_IRUGO, &if6_fops))
return -ENOMEM;
return 0;
}
+static void if6_proc_net_exit(struct net *net)
+{
+ proc_net_remove(net, "if_inet6");
+}
+
+static struct pernet_operations if6_proc_net_ops = {
+ .init = if6_proc_net_init,
+ .exit = if6_proc_net_exit,
+};
+
+int __init if6_proc_init(void)
+{
+ return register_pernet_subsys(&if6_proc_net_ops);
+}
+
void if6_proc_exit(void)
{
- proc_net_remove(&init_net, "if_inet6");
+ unregister_pernet_subsys(&if6_proc_net_ops);
}
#endif /* CONFIG_PROC_FS */
#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 (ifp->idev->dev->nd_net != net)
+ continue;
if (ipv6_addr_cmp(&ifp->addr, addr) == 0 &&
(ifp->flags & IFA_F_HOMEADDRESS)) {
ret = 1;
static int
inet6_rtm_deladdr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
+ struct net *net = skb->sk->sk_net;
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;
static int
inet6_rtm_newaddr(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
{
+ struct net *net = skb->sk->sk_net;
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;
/* 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
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 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;
if (ifm->ifa_index)
dev = __dev_get_by_index(&init_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, NETLINK_CB(in_skb).pid);
+ err = rtnl_unicast(skb, &init_net, NETLINK_CB(in_skb).pid);
errout_ifa:
in6_ifa_put(ifa);
errout:
kfree_skb(skb);
goto errout;
}
- err = rtnl_notify(skb, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+ err = rtnl_notify(skb, &init_net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_IPV6_IFADDR, err);
+ rtnl_set_sk_err(&init_net, RTNLGRP_IPV6_IFADDR, err);
}
static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
static int inet6_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
{
+ struct net *net = skb->sk->sk_net;
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) {
kfree_skb(skb);
goto errout;
}
- err = rtnl_notify(skb, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
+ err = rtnl_notify(skb, &init_net, 0, RTNLGRP_IPV6_IFADDR, NULL, GFP_ATOMIC);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_IPV6_IFADDR, err);
+ rtnl_set_sk_err(&init_net, RTNLGRP_IPV6_IFADDR, err);
}
static inline size_t inet6_prefix_nlmsg_size(void)
kfree_skb(skb);
goto errout;
}
- err = rtnl_notify(skb, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
+ err = rtnl_notify(skb, &init_net, 0, RTNLGRP_IPV6_PREFIX, NULL, GFP_ATOMIC);
errout:
if (err < 0)
- rtnl_set_sk_err(RTNLGRP_IPV6_PREFIX, err);
+ rtnl_set_sk_err(&init_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 && valp != &ipv6_devconf_dflt.forwarding) {
- if (valp != &ipv6_devconf.forwarding) {
- if ((!*valp) ^ (!val)) {
- struct inet6_dev *idev = (struct inet6_dev *)ctl->extra1;
- if (idev == NULL)
- return ret;
- dev_forward_change(idev);
- }
- } else {
- ipv6_devconf_dflt.forwarding = ipv6_devconf.forwarding;
- addrconf_forward_change();
- }
- if (*valp)
- rt6_purge_dflt_routers();
- }
-
+ if (write)
+ addrconf_fixup_forwarding(ctl, valp, val);
return ret;
}
void __user *newval, size_t newlen)
{
int *valp = table->data;
+ int val = *valp;
int new;
if (!newval || !newlen)
}
}
- if (valp != &ipv6_devconf_dflt.forwarding) {
- if (valp != &ipv6_devconf.forwarding) {
- struct inet6_dev *idev = (struct inet6_dev *)table->extra1;
- int changed;
- if (unlikely(idev == NULL))
- return -ENODEV;
- changed = (!*valp) ^ (!new);
- *valp = new;
- if (changed)
- dev_forward_change(idev);
- } else {
- *valp = new;
- addrconf_forward_change();
- }
-
- if (*valp)
- rt6_purge_dflt_routers();
- } else
- *valp = new;
-
+ *valp = new;
+ addrconf_fixup_forwarding(table, valp, val);
return 1;
}
{
struct ctl_table_header *sysctl_header;
ctl_table addrconf_vars[__NET_IPV6_MAX];
- ctl_table addrconf_dev[2];
- ctl_table addrconf_conf_dir[2];
- ctl_table addrconf_proto_dir[2];
- ctl_table addrconf_root_dir[2];
+ char *dev_name;
} addrconf_sysctl __read_mostly = {
.sysctl_header = NULL,
.addrconf_vars = {
.ctl_name = 0, /* sentinel */
}
},
- .addrconf_dev = {
- {
- .ctl_name = NET_PROTO_CONF_ALL,
- .procname = "all",
- .mode = 0555,
- .child = addrconf_sysctl.addrconf_vars,
- },
- {
- .ctl_name = 0, /* sentinel */
- }
- },
- .addrconf_conf_dir = {
- {
- .ctl_name = NET_IPV6_CONF,
- .procname = "conf",
- .mode = 0555,
- .child = addrconf_sysctl.addrconf_dev,
- },
- {
- .ctl_name = 0, /* sentinel */
- }
- },
- .addrconf_proto_dir = {
- {
- .ctl_name = NET_IPV6,
- .procname = "ipv6",
- .mode = 0555,
- .child = addrconf_sysctl.addrconf_conf_dir,
- },
- {
- .ctl_name = 0, /* sentinel */
- }
- },
- .addrconf_root_dir = {
- {
- .ctl_name = CTL_NET,
- .procname = "net",
- .mode = 0555,
- .child = addrconf_sysctl.addrconf_proto_dir,
- },
- {
- .ctl_name = 0, /* sentinel */
- }
- },
};
-static void addrconf_sysctl_register(struct inet6_dev *idev, struct ipv6_devconf *p)
+static int __addrconf_sysctl_register(struct net *net, char *dev_name,
+ int ctl_name, struct inet6_dev *idev, struct ipv6_devconf *p)
{
int i;
- struct net_device *dev = idev ? idev->dev : NULL;
struct addrconf_sysctl_table *t;
- char *dev_name = NULL;
+
+#define ADDRCONF_CTL_PATH_DEV 3
+
+ struct ctl_path addrconf_ctl_path[] = {
+ { .procname = "net", .ctl_name = CTL_NET, },
+ { .procname = "ipv6", .ctl_name = NET_IPV6, },
+ { .procname = "conf", .ctl_name = NET_IPV6_CONF, },
+ { /* to be set */ },
+ { },
+ };
+
t = kmemdup(&addrconf_sysctl, sizeof(*t), GFP_KERNEL);
if (t == NULL)
- return;
+ goto out;
+
for (i=0; t->addrconf_vars[i].data; i++) {
t->addrconf_vars[i].data += (char*)p - (char*)&ipv6_devconf;
t->addrconf_vars[i].extra1 = idev; /* embedded; no ref */
- }
- if (dev) {
- dev_name = dev->name;
- t->addrconf_dev[0].ctl_name = dev->ifindex;
- } else {
- dev_name = "default";
- t->addrconf_dev[0].ctl_name = NET_PROTO_CONF_DEFAULT;
+ t->addrconf_vars[i].extra2 = net;
}
/*
* by sysctl and we wouldn't want anyone to change it under our feet
* (see SIOCSIFNAME).
*/
- dev_name = kstrdup(dev_name, GFP_KERNEL);
- if (!dev_name)
- goto free;
-
- t->addrconf_dev[0].procname = dev_name;
+ t->dev_name = kstrdup(dev_name, GFP_KERNEL);
+ if (!t->dev_name)
+ goto free;
- t->addrconf_dev[0].child = t->addrconf_vars;
- t->addrconf_conf_dir[0].child = t->addrconf_dev;
- t->addrconf_proto_dir[0].child = t->addrconf_conf_dir;
- t->addrconf_root_dir[0].child = t->addrconf_proto_dir;
+ addrconf_ctl_path[ADDRCONF_CTL_PATH_DEV].procname = t->dev_name;
+ addrconf_ctl_path[ADDRCONF_CTL_PATH_DEV].ctl_name = ctl_name;
- t->sysctl_header = register_sysctl_table(t->addrconf_root_dir);
+ t->sysctl_header = register_net_sysctl_table(net, addrconf_ctl_path,
+ t->addrconf_vars);
if (t->sysctl_header == NULL)
goto free_procname;
- else
- p->sysctl = t;
- return;
- /* error path */
- free_procname:
- kfree(dev_name);
- free:
+ p->sysctl = t;
+ return 0;
+
+free_procname:
+ kfree(t->dev_name);
+free:
kfree(t);
+out:
+ return -ENOBUFS;
+}
+
+static void __addrconf_sysctl_unregister(struct ipv6_devconf *p)
+{
+ struct addrconf_sysctl_table *t;
- return;
+ if (p->sysctl == NULL)
+ return;
+
+ t = p->sysctl;
+ p->sysctl = NULL;
+ unregister_sysctl_table(t->sysctl_header);
+ kfree(t->dev_name);
+ kfree(t);
}
-static void addrconf_sysctl_unregister(struct ipv6_devconf *p)
+static void addrconf_sysctl_register(struct inet6_dev *idev)
{
- if (p->sysctl) {
- struct addrconf_sysctl_table *t = p->sysctl;
- p->sysctl = NULL;
- unregister_sysctl_table(t->sysctl_header);
- kfree(t->addrconf_dev[0].procname);
- kfree(t);
- }
+ 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,
+ idev->dev->ifindex, idev, &idev->cnf);
}
+static void addrconf_sysctl_unregister(struct inet6_dev *idev)
+{
+ __addrconf_sysctl_unregister(&idev->cnf);
+ neigh_sysctl_unregister(idev->nd_parms);
+}
+
+
+#endif
+
+static int addrconf_init_net(struct net *net)
+{
+ int err;
+ struct ipv6_devconf *all, *dflt;
+
+ err = -ENOMEM;
+ all = &ipv6_devconf;
+ dflt = &ipv6_devconf_dflt;
+
+ if (net != &init_net) {
+ all = kmemdup(all, sizeof(ipv6_devconf), GFP_KERNEL);
+ if (all == NULL)
+ goto err_alloc_all;
+
+ dflt = kmemdup(dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL);
+ if (dflt == NULL)
+ goto err_alloc_dflt;
+ }
+
+ net->ipv6.devconf_all = all;
+ net->ipv6.devconf_dflt = dflt;
+
+#ifdef CONFIG_SYSCTL
+ err = __addrconf_sysctl_register(net, "all", NET_PROTO_CONF_ALL,
+ NULL, all);
+ if (err < 0)
+ goto err_reg_all;
+
+ err = __addrconf_sysctl_register(net, "default", NET_PROTO_CONF_DEFAULT,
+ NULL, dflt);
+ if (err < 0)
+ goto err_reg_dflt;
+#endif
+ return 0;
+
+#ifdef CONFIG_SYSCTL
+err_reg_dflt:
+ __addrconf_sysctl_unregister(all);
+err_reg_all:
+ kfree(dflt);
+#endif
+err_alloc_dflt:
+ kfree(all);
+err_alloc_all:
+ return err;
+}
+static void addrconf_exit_net(struct net *net)
+{
+#ifdef CONFIG_SYSCTL
+ __addrconf_sysctl_unregister(net->ipv6.devconf_dflt);
+ __addrconf_sysctl_unregister(net->ipv6.devconf_all);
#endif
+ if (net != &init_net) {
+ kfree(net->ipv6.devconf_dflt);
+ kfree(net->ipv6.devconf_all);
+ }
+}
+
+static struct pernet_operations addrconf_ops = {
+ .init = addrconf_init_net,
+ .exit = addrconf_exit_net,
+};
/*
* Device notifier
int __init addrconf_init(void)
{
- int err = 0;
+ int err;
+
+ if ((err = ipv6_addr_label_init()) < 0) {
+ printk(KERN_CRIT "IPv6 Addrconf: cannot initialize default policy table: %d.\n",
+ err);
+ return err;
+ }
+
+ register_pernet_subsys(&addrconf_ops);
/* The addrconf netdev notifier requires that loopback_dev
* has it's ipv6 private information allocated and setup
err = -ENOMEM;
rtnl_unlock();
if (err)
- return 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);
__rtnl_register(PF_INET6, RTM_GETMULTICAST, NULL, inet6_dump_ifmcaddr);
__rtnl_register(PF_INET6, RTM_GETANYCAST, NULL, inet6_dump_ifacaddr);
-#ifdef CONFIG_SYSCTL
- addrconf_sysctl.sysctl_header =
- register_sysctl_table(addrconf_sysctl.addrconf_root_dir);
- addrconf_sysctl_register(NULL, &ipv6_devconf_dflt);
-#endif
+ ipv6_addr_label_rtnl_register();
return 0;
errout:
unregister_netdevice_notifier(&ipv6_dev_notf);
+errlo:
+ unregister_pernet_subsys(&addrconf_ops);
return err;
}
-void __exit addrconf_cleanup(void)
+void addrconf_cleanup(void)
{
struct net_device *dev;
struct inet6_ifaddr *ifa;
unregister_netdevice_notifier(&ipv6_dev_notf);
-#ifdef CONFIG_SYSCTL
- addrconf_sysctl_unregister(&ipv6_devconf_dflt);
- addrconf_sysctl_unregister(&ipv6_devconf);
-#endif
+ unregister_pernet_subsys(&addrconf_ops);
rtnl_lock();
git.samba.org / sfrench / cifs-2.6.git / blobdiff