615 строки
14 KiB
C
615 строки
14 KiB
C
/*
|
|
* IPv6 Address Label subsystem
|
|
* for the IPv6 "Default" Source Address Selection
|
|
*
|
|
* Copyright (C)2007 USAGI/WIDE Project
|
|
*/
|
|
/*
|
|
* Author:
|
|
* YOSHIFUJI Hideaki @ USAGI/WIDE Project <yoshfuji@linux-ipv6.org>
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/list.h>
|
|
#include <linux/rcupdate.h>
|
|
#include <linux/in6.h>
|
|
#include <linux/slab.h>
|
|
#include <net/addrconf.h>
|
|
#include <linux/if_addrlabel.h>
|
|
#include <linux/netlink.h>
|
|
#include <linux/rtnetlink.h>
|
|
#include <linux/refcount.h>
|
|
|
|
#if 0
|
|
#define ADDRLABEL(x...) printk(x)
|
|
#else
|
|
#define ADDRLABEL(x...) do { ; } while (0)
|
|
#endif
|
|
|
|
/*
|
|
* Policy Table
|
|
*/
|
|
struct ip6addrlbl_entry {
|
|
possible_net_t lbl_net;
|
|
struct in6_addr prefix;
|
|
int prefixlen;
|
|
int ifindex;
|
|
int addrtype;
|
|
u32 label;
|
|
struct hlist_node list;
|
|
refcount_t refcnt;
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
static struct ip6addrlbl_table
|
|
{
|
|
struct hlist_head head;
|
|
spinlock_t lock;
|
|
u32 seq;
|
|
} ip6addrlbl_table;
|
|
|
|
static inline
|
|
struct net *ip6addrlbl_net(const struct ip6addrlbl_entry *lbl)
|
|
{
|
|
return read_pnet(&lbl->lbl_net);
|
|
}
|
|
|
|
/*
|
|
* Default policy table (RFC6724 + extensions)
|
|
*
|
|
* prefix addr_type label
|
|
* -------------------------------------------------------------------------
|
|
* ::1/128 LOOPBACK 0
|
|
* ::/0 N/A 1
|
|
* 2002::/16 N/A 2
|
|
* ::/96 COMPATv4 3
|
|
* ::ffff:0:0/96 V4MAPPED 4
|
|
* fc00::/7 N/A 5 ULA (RFC 4193)
|
|
* 2001::/32 N/A 6 Teredo (RFC 4380)
|
|
* 2001:10::/28 N/A 7 ORCHID (RFC 4843)
|
|
* fec0::/10 N/A 11 Site-local
|
|
* (deprecated by RFC3879)
|
|
* 3ffe::/16 N/A 12 6bone
|
|
*
|
|
* Note: 0xffffffff is used if we do not have any policies.
|
|
* Note: Labels for ULA and 6to4 are different from labels listed in RFC6724.
|
|
*/
|
|
|
|
#define IPV6_ADDR_LABEL_DEFAULT 0xffffffffUL
|
|
|
|
static const __net_initconst struct ip6addrlbl_init_table
|
|
{
|
|
const struct in6_addr *prefix;
|
|
int prefixlen;
|
|
u32 label;
|
|
} ip6addrlbl_init_table[] = {
|
|
{ /* ::/0 */
|
|
.prefix = &in6addr_any,
|
|
.label = 1,
|
|
}, { /* fc00::/7 */
|
|
.prefix = &(struct in6_addr){ { { 0xfc } } } ,
|
|
.prefixlen = 7,
|
|
.label = 5,
|
|
}, { /* fec0::/10 */
|
|
.prefix = &(struct in6_addr){ { { 0xfe, 0xc0 } } },
|
|
.prefixlen = 10,
|
|
.label = 11,
|
|
}, { /* 2002::/16 */
|
|
.prefix = &(struct in6_addr){ { { 0x20, 0x02 } } },
|
|
.prefixlen = 16,
|
|
.label = 2,
|
|
}, { /* 3ffe::/16 */
|
|
.prefix = &(struct in6_addr){ { { 0x3f, 0xfe } } },
|
|
.prefixlen = 16,
|
|
.label = 12,
|
|
}, { /* 2001::/32 */
|
|
.prefix = &(struct in6_addr){ { { 0x20, 0x01 } } },
|
|
.prefixlen = 32,
|
|
.label = 6,
|
|
}, { /* 2001:10::/28 */
|
|
.prefix = &(struct in6_addr){ { { 0x20, 0x01, 0x00, 0x10 } } },
|
|
.prefixlen = 28,
|
|
.label = 7,
|
|
}, { /* ::ffff:0:0 */
|
|
.prefix = &(struct in6_addr){ { { [10] = 0xff, [11] = 0xff } } },
|
|
.prefixlen = 96,
|
|
.label = 4,
|
|
}, { /* ::/96 */
|
|
.prefix = &in6addr_any,
|
|
.prefixlen = 96,
|
|
.label = 3,
|
|
}, { /* ::1/128 */
|
|
.prefix = &in6addr_loopback,
|
|
.prefixlen = 128,
|
|
.label = 0,
|
|
}
|
|
};
|
|
|
|
/* Object management */
|
|
static inline void ip6addrlbl_free(struct ip6addrlbl_entry *p)
|
|
{
|
|
kfree(p);
|
|
}
|
|
|
|
static void ip6addrlbl_free_rcu(struct rcu_head *h)
|
|
{
|
|
ip6addrlbl_free(container_of(h, struct ip6addrlbl_entry, rcu));
|
|
}
|
|
|
|
static bool ip6addrlbl_hold(struct ip6addrlbl_entry *p)
|
|
{
|
|
return refcount_inc_not_zero(&p->refcnt);
|
|
}
|
|
|
|
static inline void ip6addrlbl_put(struct ip6addrlbl_entry *p)
|
|
{
|
|
if (refcount_dec_and_test(&p->refcnt))
|
|
call_rcu(&p->rcu, ip6addrlbl_free_rcu);
|
|
}
|
|
|
|
/* Find label */
|
|
static bool __ip6addrlbl_match(struct net *net,
|
|
const struct ip6addrlbl_entry *p,
|
|
const struct in6_addr *addr,
|
|
int addrtype, int ifindex)
|
|
{
|
|
if (!net_eq(ip6addrlbl_net(p), net))
|
|
return false;
|
|
if (p->ifindex && p->ifindex != ifindex)
|
|
return false;
|
|
if (p->addrtype && p->addrtype != addrtype)
|
|
return false;
|
|
if (!ipv6_prefix_equal(addr, &p->prefix, p->prefixlen))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static struct ip6addrlbl_entry *__ipv6_addr_label(struct net *net,
|
|
const struct in6_addr *addr,
|
|
int type, int ifindex)
|
|
{
|
|
struct ip6addrlbl_entry *p;
|
|
hlist_for_each_entry_rcu(p, &ip6addrlbl_table.head, list) {
|
|
if (__ip6addrlbl_match(net, p, addr, type, ifindex))
|
|
return p;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
u32 ipv6_addr_label(struct net *net,
|
|
const struct in6_addr *addr, int type, int ifindex)
|
|
{
|
|
u32 label;
|
|
struct ip6addrlbl_entry *p;
|
|
|
|
type &= IPV6_ADDR_MAPPED | IPV6_ADDR_COMPATv4 | IPV6_ADDR_LOOPBACK;
|
|
|
|
rcu_read_lock();
|
|
p = __ipv6_addr_label(net, addr, type, ifindex);
|
|
label = p ? p->label : IPV6_ADDR_LABEL_DEFAULT;
|
|
rcu_read_unlock();
|
|
|
|
ADDRLABEL(KERN_DEBUG "%s(addr=%pI6, type=%d, ifindex=%d) => %08x\n",
|
|
__func__, addr, type, ifindex, label);
|
|
|
|
return label;
|
|
}
|
|
|
|
/* allocate one entry */
|
|
static struct ip6addrlbl_entry *ip6addrlbl_alloc(struct net *net,
|
|
const struct in6_addr *prefix,
|
|
int prefixlen, int ifindex,
|
|
u32 label)
|
|
{
|
|
struct ip6addrlbl_entry *newp;
|
|
int addrtype;
|
|
|
|
ADDRLABEL(KERN_DEBUG "%s(prefix=%pI6, prefixlen=%d, ifindex=%d, label=%u)\n",
|
|
__func__, prefix, prefixlen, ifindex, (unsigned int)label);
|
|
|
|
addrtype = ipv6_addr_type(prefix) & (IPV6_ADDR_MAPPED | IPV6_ADDR_COMPATv4 | IPV6_ADDR_LOOPBACK);
|
|
|
|
switch (addrtype) {
|
|
case IPV6_ADDR_MAPPED:
|
|
if (prefixlen > 96)
|
|
return ERR_PTR(-EINVAL);
|
|
if (prefixlen < 96)
|
|
addrtype = 0;
|
|
break;
|
|
case IPV6_ADDR_COMPATv4:
|
|
if (prefixlen != 96)
|
|
addrtype = 0;
|
|
break;
|
|
case IPV6_ADDR_LOOPBACK:
|
|
if (prefixlen != 128)
|
|
addrtype = 0;
|
|
break;
|
|
}
|
|
|
|
newp = kmalloc(sizeof(*newp), GFP_KERNEL);
|
|
if (!newp)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
ipv6_addr_prefix(&newp->prefix, prefix, prefixlen);
|
|
newp->prefixlen = prefixlen;
|
|
newp->ifindex = ifindex;
|
|
newp->addrtype = addrtype;
|
|
newp->label = label;
|
|
INIT_HLIST_NODE(&newp->list);
|
|
write_pnet(&newp->lbl_net, net);
|
|
refcount_set(&newp->refcnt, 1);
|
|
return newp;
|
|
}
|
|
|
|
/* add a label */
|
|
static int __ip6addrlbl_add(struct ip6addrlbl_entry *newp, int replace)
|
|
{
|
|
struct hlist_node *n;
|
|
struct ip6addrlbl_entry *last = NULL, *p = NULL;
|
|
int ret = 0;
|
|
|
|
ADDRLABEL(KERN_DEBUG "%s(newp=%p, replace=%d)\n", __func__, newp,
|
|
replace);
|
|
|
|
hlist_for_each_entry_safe(p, n, &ip6addrlbl_table.head, list) {
|
|
if (p->prefixlen == newp->prefixlen &&
|
|
net_eq(ip6addrlbl_net(p), ip6addrlbl_net(newp)) &&
|
|
p->ifindex == newp->ifindex &&
|
|
ipv6_addr_equal(&p->prefix, &newp->prefix)) {
|
|
if (!replace) {
|
|
ret = -EEXIST;
|
|
goto out;
|
|
}
|
|
hlist_replace_rcu(&p->list, &newp->list);
|
|
ip6addrlbl_put(p);
|
|
goto out;
|
|
} else if ((p->prefixlen == newp->prefixlen && !p->ifindex) ||
|
|
(p->prefixlen < newp->prefixlen)) {
|
|
hlist_add_before_rcu(&newp->list, &p->list);
|
|
goto out;
|
|
}
|
|
last = p;
|
|
}
|
|
if (last)
|
|
hlist_add_behind_rcu(&newp->list, &last->list);
|
|
else
|
|
hlist_add_head_rcu(&newp->list, &ip6addrlbl_table.head);
|
|
out:
|
|
if (!ret)
|
|
ip6addrlbl_table.seq++;
|
|
return ret;
|
|
}
|
|
|
|
/* add a label */
|
|
static int ip6addrlbl_add(struct net *net,
|
|
const struct in6_addr *prefix, int prefixlen,
|
|
int ifindex, u32 label, int replace)
|
|
{
|
|
struct ip6addrlbl_entry *newp;
|
|
int ret = 0;
|
|
|
|
ADDRLABEL(KERN_DEBUG "%s(prefix=%pI6, prefixlen=%d, ifindex=%d, label=%u, replace=%d)\n",
|
|
__func__, prefix, prefixlen, ifindex, (unsigned int)label,
|
|
replace);
|
|
|
|
newp = ip6addrlbl_alloc(net, prefix, prefixlen, ifindex, label);
|
|
if (IS_ERR(newp))
|
|
return PTR_ERR(newp);
|
|
spin_lock(&ip6addrlbl_table.lock);
|
|
ret = __ip6addrlbl_add(newp, replace);
|
|
spin_unlock(&ip6addrlbl_table.lock);
|
|
if (ret)
|
|
ip6addrlbl_free(newp);
|
|
return ret;
|
|
}
|
|
|
|
/* remove a label */
|
|
static int __ip6addrlbl_del(struct net *net,
|
|
const struct in6_addr *prefix, int prefixlen,
|
|
int ifindex)
|
|
{
|
|
struct ip6addrlbl_entry *p = NULL;
|
|
struct hlist_node *n;
|
|
int ret = -ESRCH;
|
|
|
|
ADDRLABEL(KERN_DEBUG "%s(prefix=%pI6, prefixlen=%d, ifindex=%d)\n",
|
|
__func__, prefix, prefixlen, ifindex);
|
|
|
|
hlist_for_each_entry_safe(p, n, &ip6addrlbl_table.head, list) {
|
|
if (p->prefixlen == prefixlen &&
|
|
net_eq(ip6addrlbl_net(p), net) &&
|
|
p->ifindex == ifindex &&
|
|
ipv6_addr_equal(&p->prefix, prefix)) {
|
|
hlist_del_rcu(&p->list);
|
|
ip6addrlbl_put(p);
|
|
ret = 0;
|
|
break;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int ip6addrlbl_del(struct net *net,
|
|
const struct in6_addr *prefix, int prefixlen,
|
|
int ifindex)
|
|
{
|
|
struct in6_addr prefix_buf;
|
|
int ret;
|
|
|
|
ADDRLABEL(KERN_DEBUG "%s(prefix=%pI6, prefixlen=%d, ifindex=%d)\n",
|
|
__func__, prefix, prefixlen, ifindex);
|
|
|
|
ipv6_addr_prefix(&prefix_buf, prefix, prefixlen);
|
|
spin_lock(&ip6addrlbl_table.lock);
|
|
ret = __ip6addrlbl_del(net, &prefix_buf, prefixlen, ifindex);
|
|
spin_unlock(&ip6addrlbl_table.lock);
|
|
return ret;
|
|
}
|
|
|
|
/* add default label */
|
|
static int __net_init ip6addrlbl_net_init(struct net *net)
|
|
{
|
|
int err = 0;
|
|
int i;
|
|
|
|
ADDRLABEL(KERN_DEBUG "%s\n", __func__);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ip6addrlbl_init_table); i++) {
|
|
int ret = ip6addrlbl_add(net,
|
|
ip6addrlbl_init_table[i].prefix,
|
|
ip6addrlbl_init_table[i].prefixlen,
|
|
0,
|
|
ip6addrlbl_init_table[i].label, 0);
|
|
/* XXX: should we free all rules when we catch an error? */
|
|
if (ret && (!err || err != -ENOMEM))
|
|
err = ret;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static void __net_exit ip6addrlbl_net_exit(struct net *net)
|
|
{
|
|
struct ip6addrlbl_entry *p = NULL;
|
|
struct hlist_node *n;
|
|
|
|
/* Remove all labels belonging to the exiting net */
|
|
spin_lock(&ip6addrlbl_table.lock);
|
|
hlist_for_each_entry_safe(p, n, &ip6addrlbl_table.head, list) {
|
|
if (net_eq(ip6addrlbl_net(p), net)) {
|
|
hlist_del_rcu(&p->list);
|
|
ip6addrlbl_put(p);
|
|
}
|
|
}
|
|
spin_unlock(&ip6addrlbl_table.lock);
|
|
}
|
|
|
|
static struct pernet_operations ipv6_addr_label_ops = {
|
|
.init = ip6addrlbl_net_init,
|
|
.exit = ip6addrlbl_net_exit,
|
|
};
|
|
|
|
int __init ipv6_addr_label_init(void)
|
|
{
|
|
spin_lock_init(&ip6addrlbl_table.lock);
|
|
|
|
return register_pernet_subsys(&ipv6_addr_label_ops);
|
|
}
|
|
|
|
void ipv6_addr_label_cleanup(void)
|
|
{
|
|
unregister_pernet_subsys(&ipv6_addr_label_ops);
|
|
}
|
|
|
|
static const struct nla_policy ifal_policy[IFAL_MAX+1] = {
|
|
[IFAL_ADDRESS] = { .len = sizeof(struct in6_addr), },
|
|
[IFAL_LABEL] = { .len = sizeof(u32), },
|
|
};
|
|
|
|
static bool addrlbl_ifindex_exists(struct net *net, int ifindex)
|
|
{
|
|
|
|
struct net_device *dev;
|
|
|
|
rcu_read_lock();
|
|
dev = dev_get_by_index_rcu(net, ifindex);
|
|
rcu_read_unlock();
|
|
|
|
return dev != NULL;
|
|
}
|
|
|
|
static int ip6addrlbl_newdel(struct sk_buff *skb, struct nlmsghdr *nlh,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct net *net = sock_net(skb->sk);
|
|
struct ifaddrlblmsg *ifal;
|
|
struct nlattr *tb[IFAL_MAX+1];
|
|
struct in6_addr *pfx;
|
|
u32 label;
|
|
int err = 0;
|
|
|
|
err = nlmsg_parse(nlh, sizeof(*ifal), tb, IFAL_MAX, ifal_policy,
|
|
extack);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
ifal = nlmsg_data(nlh);
|
|
|
|
if (ifal->ifal_family != AF_INET6 ||
|
|
ifal->ifal_prefixlen > 128)
|
|
return -EINVAL;
|
|
|
|
if (!tb[IFAL_ADDRESS])
|
|
return -EINVAL;
|
|
pfx = nla_data(tb[IFAL_ADDRESS]);
|
|
|
|
if (!tb[IFAL_LABEL])
|
|
return -EINVAL;
|
|
label = nla_get_u32(tb[IFAL_LABEL]);
|
|
if (label == IPV6_ADDR_LABEL_DEFAULT)
|
|
return -EINVAL;
|
|
|
|
switch (nlh->nlmsg_type) {
|
|
case RTM_NEWADDRLABEL:
|
|
if (ifal->ifal_index &&
|
|
!addrlbl_ifindex_exists(net, ifal->ifal_index))
|
|
return -EINVAL;
|
|
|
|
err = ip6addrlbl_add(net, pfx, ifal->ifal_prefixlen,
|
|
ifal->ifal_index, label,
|
|
nlh->nlmsg_flags & NLM_F_REPLACE);
|
|
break;
|
|
case RTM_DELADDRLABEL:
|
|
err = ip6addrlbl_del(net, pfx, ifal->ifal_prefixlen,
|
|
ifal->ifal_index);
|
|
break;
|
|
default:
|
|
err = -EOPNOTSUPP;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static void ip6addrlbl_putmsg(struct nlmsghdr *nlh,
|
|
int prefixlen, int ifindex, u32 lseq)
|
|
{
|
|
struct ifaddrlblmsg *ifal = nlmsg_data(nlh);
|
|
ifal->ifal_family = AF_INET6;
|
|
ifal->ifal_prefixlen = prefixlen;
|
|
ifal->ifal_flags = 0;
|
|
ifal->ifal_index = ifindex;
|
|
ifal->ifal_seq = lseq;
|
|
};
|
|
|
|
static int ip6addrlbl_fill(struct sk_buff *skb,
|
|
struct ip6addrlbl_entry *p,
|
|
u32 lseq,
|
|
u32 portid, u32 seq, int event,
|
|
unsigned int flags)
|
|
{
|
|
struct nlmsghdr *nlh = nlmsg_put(skb, portid, seq, event,
|
|
sizeof(struct ifaddrlblmsg), flags);
|
|
if (!nlh)
|
|
return -EMSGSIZE;
|
|
|
|
ip6addrlbl_putmsg(nlh, p->prefixlen, p->ifindex, lseq);
|
|
|
|
if (nla_put_in6_addr(skb, IFAL_ADDRESS, &p->prefix) < 0 ||
|
|
nla_put_u32(skb, IFAL_LABEL, p->label) < 0) {
|
|
nlmsg_cancel(skb, nlh);
|
|
return -EMSGSIZE;
|
|
}
|
|
|
|
nlmsg_end(skb, nlh);
|
|
return 0;
|
|
}
|
|
|
|
static int ip6addrlbl_dump(struct sk_buff *skb, struct netlink_callback *cb)
|
|
{
|
|
struct net *net = sock_net(skb->sk);
|
|
struct ip6addrlbl_entry *p;
|
|
int idx = 0, s_idx = cb->args[0];
|
|
int err;
|
|
|
|
rcu_read_lock();
|
|
hlist_for_each_entry_rcu(p, &ip6addrlbl_table.head, list) {
|
|
if (idx >= s_idx &&
|
|
net_eq(ip6addrlbl_net(p), net)) {
|
|
err = ip6addrlbl_fill(skb, p,
|
|
ip6addrlbl_table.seq,
|
|
NETLINK_CB(cb->skb).portid,
|
|
cb->nlh->nlmsg_seq,
|
|
RTM_NEWADDRLABEL,
|
|
NLM_F_MULTI);
|
|
if (err < 0)
|
|
break;
|
|
}
|
|
idx++;
|
|
}
|
|
rcu_read_unlock();
|
|
cb->args[0] = idx;
|
|
return skb->len;
|
|
}
|
|
|
|
static inline int ip6addrlbl_msgsize(void)
|
|
{
|
|
return NLMSG_ALIGN(sizeof(struct ifaddrlblmsg))
|
|
+ nla_total_size(16) /* IFAL_ADDRESS */
|
|
+ nla_total_size(4); /* IFAL_LABEL */
|
|
}
|
|
|
|
static int ip6addrlbl_get(struct sk_buff *in_skb, struct nlmsghdr *nlh,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct net *net = sock_net(in_skb->sk);
|
|
struct ifaddrlblmsg *ifal;
|
|
struct nlattr *tb[IFAL_MAX+1];
|
|
struct in6_addr *addr;
|
|
u32 lseq;
|
|
int err = 0;
|
|
struct ip6addrlbl_entry *p;
|
|
struct sk_buff *skb;
|
|
|
|
err = nlmsg_parse(nlh, sizeof(*ifal), tb, IFAL_MAX, ifal_policy,
|
|
extack);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
ifal = nlmsg_data(nlh);
|
|
|
|
if (ifal->ifal_family != AF_INET6 ||
|
|
ifal->ifal_prefixlen != 128)
|
|
return -EINVAL;
|
|
|
|
if (ifal->ifal_index &&
|
|
!addrlbl_ifindex_exists(net, ifal->ifal_index))
|
|
return -EINVAL;
|
|
|
|
if (!tb[IFAL_ADDRESS])
|
|
return -EINVAL;
|
|
addr = nla_data(tb[IFAL_ADDRESS]);
|
|
|
|
rcu_read_lock();
|
|
p = __ipv6_addr_label(net, addr, ipv6_addr_type(addr), ifal->ifal_index);
|
|
if (p && !ip6addrlbl_hold(p))
|
|
p = NULL;
|
|
lseq = ip6addrlbl_table.seq;
|
|
rcu_read_unlock();
|
|
|
|
if (!p) {
|
|
err = -ESRCH;
|
|
goto out;
|
|
}
|
|
|
|
skb = nlmsg_new(ip6addrlbl_msgsize(), GFP_KERNEL);
|
|
if (!skb) {
|
|
ip6addrlbl_put(p);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
err = ip6addrlbl_fill(skb, p, lseq,
|
|
NETLINK_CB(in_skb).portid, nlh->nlmsg_seq,
|
|
RTM_NEWADDRLABEL, 0);
|
|
|
|
ip6addrlbl_put(p);
|
|
|
|
if (err < 0) {
|
|
WARN_ON(err == -EMSGSIZE);
|
|
kfree_skb(skb);
|
|
goto out;
|
|
}
|
|
|
|
err = rtnl_unicast(skb, net, NETLINK_CB(in_skb).portid);
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
void __init ipv6_addr_label_rtnl_register(void)
|
|
{
|
|
__rtnl_register(PF_INET6, RTM_NEWADDRLABEL, ip6addrlbl_newdel,
|
|
NULL, RTNL_FLAG_DOIT_UNLOCKED);
|
|
__rtnl_register(PF_INET6, RTM_DELADDRLABEL, ip6addrlbl_newdel,
|
|
NULL, RTNL_FLAG_DOIT_UNLOCKED);
|
|
__rtnl_register(PF_INET6, RTM_GETADDRLABEL, ip6addrlbl_get,
|
|
ip6addrlbl_dump, RTNL_FLAG_DOIT_UNLOCKED);
|
|
}
|
|
|