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[IPV6] ADDRCONF: Support RFC3484 configurable address selection policy table.
Policy table is implemented as an RCU linear list since we do not expect large list nor frequent updates. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki
David S. Miller
parent
303065a854
commit
2a8cc6c890
6 changed files with 608 additions and 31 deletions
32
include/linux/if_addrlabel.h
Normal file
32
include/linux/if_addrlabel.h
Normal file
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@ -0,0 +1,32 @@
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/*
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* if_addrlabel.h - netlink interface for address labels
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*
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* Copyright (C)2007 USAGI/WIDE Project, All Rights Reserved.
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*
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* Authors:
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* YOSHIFUJI Hideaki @ USAGI/WIDE <yoshfuji@linux-ipv6.org>
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*/
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#ifndef __LINUX_IF_ADDRLABEL_H
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#define __LINUX_IF_ADDRLABEL_H
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struct ifaddrlblmsg
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{
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__u8 ifal_family; /* Address family */
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__u8 __ifal_reserved; /* Reserved */
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__u8 ifal_prefixlen; /* Prefix length */
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__u8 ifal_flags; /* Flags */
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__u32 ifal_index; /* Link index */
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__u32 ifal_seq; /* sequence number */
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};
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enum
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{
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IFAL_ADDRESS = 1,
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IFAL_LABEL = 2,
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__IFAL_MAX
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};
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#define IFAL_MAX (__IFAL_MAX - 1)
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#endif
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@ -100,6 +100,13 @@ enum {
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RTM_NEWNDUSEROPT = 68,
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#define RTM_NEWNDUSEROPT RTM_NEWNDUSEROPT
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RTM_NEWADDRLABEL = 72,
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#define RTM_NEWADDRLABEL RTM_NEWADDRLABEL
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RTM_DELADDRLABEL,
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#define RTM_NEWADDRLABEL RTM_NEWADDRLABEL
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RTM_GETADDRLABEL,
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#define RTM_GETADDRLABEL RTM_GETADDRLABEL
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__RTM_MAX,
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#define RTM_MAX (((__RTM_MAX + 3) & ~3) - 1)
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};
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@ -83,6 +83,14 @@ extern void addrconf_join_solict(struct net_device *dev,
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extern void addrconf_leave_solict(struct inet6_dev *idev,
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struct in6_addr *addr);
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/*
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* IPv6 Address Label subsystem (addrlabel.c)
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*/
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extern int ipv6_addr_label_init(void);
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extern void ipv6_addr_label_rtnl_register(void);
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extern u32 ipv6_addr_label(const struct in6_addr *addr,
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int type, int ifindex);
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/*
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* multicast prototypes (mcast.c)
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*/
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@ -5,6 +5,7 @@
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obj-$(CONFIG_IPV6) += ipv6.o
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ipv6-objs := af_inet6.o anycast.o ip6_output.o ip6_input.o addrconf.o \
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addrlabel.o \
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route.o ip6_fib.o ipv6_sockglue.o ndisc.o udp.o udplite.o \
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raw.o protocol.o icmp.o mcast.o reassembly.o tcp_ipv6.o \
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exthdrs.o sysctl_net_ipv6.o datagram.o \
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@ -874,36 +874,6 @@ static inline int ipv6_saddr_preferred(int type)
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return 0;
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}
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/* static matching label */
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static inline int ipv6_addr_label(const struct in6_addr *addr, int type,
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int ifindex)
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{
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/*
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* prefix (longest match) label
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* -----------------------------
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* ::1/128 0
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* ::/0 1
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* 2002::/16 2
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* ::/96 3
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* ::ffff:0:0/96 4
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* fc00::/7 5
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* 2001::/32 6
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*/
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if (type & IPV6_ADDR_LOOPBACK)
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return 0;
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else if (type & IPV6_ADDR_COMPATv4)
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return 3;
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else if (type & IPV6_ADDR_MAPPED)
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return 4;
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else if (addr->s6_addr32[0] == htonl(0x20010000))
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return 6;
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else if (addr->s6_addr16[0] == htons(0x2002))
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return 2;
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else if ((addr->s6_addr[0] & 0xfe) == 0xfc)
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return 5;
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return 1;
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}
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int ipv6_dev_get_saddr(struct net_device *daddr_dev,
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struct in6_addr *daddr, struct in6_addr *saddr)
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{
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@ -4189,7 +4159,13 @@ EXPORT_SYMBOL(unregister_inet6addr_notifier);
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int __init addrconf_init(void)
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{
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int err = 0;
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int err;
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if ((err = ipv6_addr_label_init()) < 0) {
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printk(KERN_CRIT "IPv6 Addrconf: cannot initialize default policy table: %d.\n",
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err);
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return err;
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}
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/* The addrconf netdev notifier requires that loopback_dev
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* has it's ipv6 private information allocated and setup
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@ -4240,6 +4216,8 @@ int __init addrconf_init(void)
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__rtnl_register(PF_INET6, RTM_GETMULTICAST, NULL, inet6_dump_ifmcaddr);
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__rtnl_register(PF_INET6, RTM_GETANYCAST, NULL, inet6_dump_ifacaddr);
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ipv6_addr_label_rtnl_register();
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#ifdef CONFIG_SYSCTL
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addrconf_sysctl.sysctl_header =
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register_sysctl_table(addrconf_sysctl.addrconf_root_dir);
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551
net/ipv6/addrlabel.c
Normal file
551
net/ipv6/addrlabel.c
Normal file
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@ -0,0 +1,551 @@
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/*
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* IPv6 Address Label subsystem
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* for the IPv6 "Default" Source Address Selection
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*
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* Copyright (C)2007 USAGI/WIDE Project
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*/
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/*
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* Author:
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* YOSHIFUJI Hideaki @ USAGI/WIDE Project <yoshfuji@linux-ipv6.org>
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*/
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/rcupdate.h>
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#include <linux/in6.h>
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#include <net/addrconf.h>
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#include <linux/if_addrlabel.h>
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#include <linux/netlink.h>
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#include <linux/rtnetlink.h>
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#if 0
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#define ADDRLABEL(x...) printk(x)
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#else
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#define ADDRLABEL(x...) do { ; } while(0)
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#endif
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/*
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* Policy Table
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*/
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struct ip6addrlbl_entry
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{
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struct in6_addr prefix;
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int prefixlen;
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int ifindex;
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int addrtype;
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u32 label;
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struct hlist_node list;
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atomic_t refcnt;
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struct rcu_head rcu;
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};
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static struct ip6addrlbl_table
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{
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struct hlist_head head;
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spinlock_t lock;
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u32 seq;
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} ip6addrlbl_table;
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/*
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* Default policy table (RFC3484 + extensions)
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*
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* prefix addr_type label
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* -------------------------------------------------------------------------
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* ::1/128 LOOPBACK 0
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* ::/0 N/A 1
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* 2002::/16 N/A 2
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* ::/96 COMPATv4 3
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* ::ffff:0:0/96 V4MAPPED 4
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* fc00::/7 N/A 5 ULA (RFC 4193)
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* 2001::/32 N/A 6 Teredo (RFC 4380)
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*
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* Note: 0xffffffff is used if we do not have any policies.
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*/
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#define IPV6_ADDR_LABEL_DEFAULT 0xffffffffUL
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static const __initdata struct ip6addrlbl_init_table
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{
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const struct in6_addr *prefix;
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int prefixlen;
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u32 label;
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} ip6addrlbl_init_table[] = {
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{ /* ::/0 */
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.prefix = &in6addr_any,
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.label = 1,
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},{ /* fc00::/7 */
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.prefix = &(struct in6_addr){{{ 0xfc }}},
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.prefixlen = 7,
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.label = 5,
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},{ /* 2002::/16 */
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.prefix = &(struct in6_addr){{{ 0x20, 0x02 }}},
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.prefixlen = 16,
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.label = 2,
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},{ /* 2001::/32 */
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.prefix = &(struct in6_addr){{{ 0x20, 0x01 }}},
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.prefixlen = 32,
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.label = 6,
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},{ /* ::ffff:0:0 */
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.prefix = &(struct in6_addr){{{ [10] = 0xff, [11] = 0xff }}},
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.prefixlen = 96,
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.label = 4,
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},{ /* ::/96 */
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.prefix = &in6addr_any,
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.prefixlen = 96,
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.label = 3,
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},{ /* ::1/128 */
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.prefix = &in6addr_loopback,
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.prefixlen = 128,
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.label = 0,
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}
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};
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/* Object management */
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static inline void ip6addrlbl_free(struct ip6addrlbl_entry *p)
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{
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kfree(p);
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}
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static inline int ip6addrlbl_hold(struct ip6addrlbl_entry *p)
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{
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return atomic_inc_not_zero(&p->refcnt);
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}
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static inline void ip6addrlbl_put(struct ip6addrlbl_entry *p)
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{
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if (atomic_dec_and_test(&p->refcnt))
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ip6addrlbl_free(p);
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}
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static void ip6addrlbl_free_rcu(struct rcu_head *h)
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{
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ip6addrlbl_free(container_of(h, struct ip6addrlbl_entry, rcu));
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}
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/* Find label */
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static int __ip6addrlbl_match(struct ip6addrlbl_entry *p,
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const struct in6_addr *addr,
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int addrtype, int ifindex)
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{
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if (p->ifindex && p->ifindex != ifindex)
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return 0;
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if (p->addrtype && p->addrtype != addrtype)
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return 0;
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if (!ipv6_prefix_equal(addr, &p->prefix, p->prefixlen))
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return 0;
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return 1;
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}
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static struct ip6addrlbl_entry *__ipv6_addr_label(const struct in6_addr *addr,
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int type, int ifindex)
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{
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struct hlist_node *pos;
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struct ip6addrlbl_entry *p;
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hlist_for_each_entry_rcu(p, pos, &ip6addrlbl_table.head, list) {
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if (__ip6addrlbl_match(p, addr, type, ifindex))
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return p;
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}
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return NULL;
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}
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u32 ipv6_addr_label(const struct in6_addr *addr, int type, int ifindex)
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{
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u32 label;
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struct ip6addrlbl_entry *p;
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type &= IPV6_ADDR_MAPPED | IPV6_ADDR_COMPATv4 | IPV6_ADDR_LOOPBACK;
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rcu_read_lock();
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p = __ipv6_addr_label(addr, type, ifindex);
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label = p ? p->label : IPV6_ADDR_LABEL_DEFAULT;
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rcu_read_unlock();
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ADDRLABEL(KERN_DEBUG "%s(addr=" NIP6_FMT ", type=%d, ifindex=%d) => %08x\n",
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__FUNCTION__,
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NIP6(*addr), type, ifindex,
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label);
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return label;
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}
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/* allocate one entry */
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struct ip6addrlbl_entry *ip6addrlbl_alloc(const struct in6_addr *prefix,
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int prefixlen, int ifindex,
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u32 label)
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{
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struct ip6addrlbl_entry *newp;
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int addrtype;
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ADDRLABEL(KERN_DEBUG "%s(prefix=" NIP6_FMT ", prefixlen=%d, ifindex=%d, label=%u)\n",
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__FUNCTION__,
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NIP6(*prefix), prefixlen,
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ifindex,
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(unsigned int)label);
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addrtype = ipv6_addr_type(prefix) & (IPV6_ADDR_MAPPED | IPV6_ADDR_COMPATv4 | IPV6_ADDR_LOOPBACK);
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switch (addrtype) {
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case IPV6_ADDR_MAPPED:
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if (prefixlen > 96)
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return ERR_PTR(-EINVAL);
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if (prefixlen < 96)
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addrtype = 0;
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break;
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case IPV6_ADDR_COMPATv4:
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if (prefixlen != 96)
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addrtype = 0;
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break;
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case IPV6_ADDR_LOOPBACK:
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if (prefixlen != 128)
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addrtype = 0;
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break;
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}
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newp = kmalloc(sizeof(*newp), GFP_KERNEL);
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if (!newp)
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return ERR_PTR(-ENOMEM);
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ipv6_addr_prefix(&newp->prefix, prefix, prefixlen);
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newp->prefixlen = prefixlen;
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newp->ifindex = ifindex;
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newp->addrtype = addrtype;
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newp->label = label;
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INIT_HLIST_NODE(&newp->list);
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atomic_set(&newp->refcnt, 1);
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return newp;
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}
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/* add a label */
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int __ip6addrlbl_add(struct ip6addrlbl_entry *newp, int replace)
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{
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int ret = 0;
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ADDRLABEL(KERN_DEBUG "%s(newp=%p, replace=%d)\n",
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__FUNCTION__,
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newp, replace);
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if (hlist_empty(&ip6addrlbl_table.head)) {
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hlist_add_head_rcu(&newp->list, &ip6addrlbl_table.head);
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} else {
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struct hlist_node *pos, *n;
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struct ip6addrlbl_entry *p = NULL;
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hlist_for_each_entry_safe(p, pos, n,
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&ip6addrlbl_table.head, list) {
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if (p->prefixlen == newp->prefixlen &&
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p->ifindex == newp->ifindex &&
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ipv6_addr_equal(&p->prefix, &newp->prefix)) {
|
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if (!replace) {
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ret = -EEXIST;
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goto out;
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}
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hlist_replace_rcu(&p->list, &newp->list);
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ip6addrlbl_put(p);
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call_rcu(&p->rcu, ip6addrlbl_free_rcu);
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goto out;
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} else if ((p->prefixlen == newp->prefixlen && !p->ifindex) ||
|
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(p->prefixlen < newp->prefixlen)) {
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hlist_add_before_rcu(&newp->list, &p->list);
|
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goto out;
|
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}
|
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}
|
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hlist_add_after_rcu(&p->list, &newp->list);
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}
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out:
|
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if (!ret)
|
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ip6addrlbl_table.seq++;
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return ret;
|
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}
|
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|
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/* add a label */
|
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int ip6addrlbl_add(const struct in6_addr *prefix, int prefixlen,
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int ifindex, u32 label, int replace)
|
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{
|
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struct ip6addrlbl_entry *newp;
|
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int ret = 0;
|
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|
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ADDRLABEL(KERN_DEBUG "%s(prefix=" NIP6_FMT ", prefixlen=%d, ifindex=%d, label=%u, replace=%d)\n",
|
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__FUNCTION__,
|
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NIP6(*prefix), prefixlen,
|
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ifindex,
|
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(unsigned int)label,
|
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replace);
|
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|
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newp = ip6addrlbl_alloc(prefix, prefixlen, ifindex, label);
|
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if (IS_ERR(newp))
|
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return PTR_ERR(newp);
|
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spin_lock(&ip6addrlbl_table.lock);
|
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ret = __ip6addrlbl_add(newp, replace);
|
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spin_unlock(&ip6addrlbl_table.lock);
|
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if (ret)
|
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ip6addrlbl_free(newp);
|
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return ret;
|
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}
|
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|
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/* remove a label */
|
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int __ip6addrlbl_del(const struct in6_addr *prefix, int prefixlen,
|
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int ifindex)
|
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{
|
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struct ip6addrlbl_entry *p = NULL;
|
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struct hlist_node *pos, *n;
|
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int ret = -ESRCH;
|
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|
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ADDRLABEL(KERN_DEBUG "%s(prefix=" NIP6_FMT ", prefixlen=%d, ifindex=%d)\n",
|
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__FUNCTION__,
|
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NIP6(*prefix), prefixlen,
|
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ifindex);
|
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|
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hlist_for_each_entry_safe(p, pos, n, &ip6addrlbl_table.head, list) {
|
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if (p->prefixlen == prefixlen &&
|
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p->ifindex == ifindex &&
|
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ipv6_addr_equal(&p->prefix, prefix)) {
|
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hlist_del_rcu(&p->list);
|
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ip6addrlbl_put(p);
|
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call_rcu(&p->rcu, ip6addrlbl_free_rcu);
|
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ret = 0;
|
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break;
|
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}
|
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}
|
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return ret;
|
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}
|
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|
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int ip6addrlbl_del(const struct in6_addr *prefix, int prefixlen,
|
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int ifindex)
|
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{
|
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struct in6_addr prefix_buf;
|
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int ret;
|
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|
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ADDRLABEL(KERN_DEBUG "%s(prefix=" NIP6_FMT ", prefixlen=%d, ifindex=%d)\n",
|
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__FUNCTION__,
|
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NIP6(*prefix), prefixlen,
|
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ifindex);
|
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|
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ipv6_addr_prefix(&prefix_buf, prefix, prefixlen);
|
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spin_lock(&ip6addrlbl_table.lock);
|
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ret = __ip6addrlbl_del(&prefix_buf, prefixlen, ifindex);
|
||||
spin_unlock(&ip6addrlbl_table.lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* add default label */
|
||||
static __init int ip6addrlbl_init(void)
|
||||
{
|
||||
int err = 0;
|
||||
int i;
|
||||
|
||||
ADDRLABEL(KERN_DEBUG "%s()\n", __FUNCTION__);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(ip6addrlbl_init_table); i++) {
|
||||
int ret = ip6addrlbl_add(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;
|
||||
}
|
||||
|
||||
int __init ipv6_addr_label_init(void)
|
||||
{
|
||||
spin_lock_init(&ip6addrlbl_table.lock);
|
||||
|
||||
return ip6addrlbl_init();
|
||||
}
|
||||
|
||||
static const struct nla_policy ifal_policy[IFAL_MAX+1] = {
|
||||
[IFAL_ADDRESS] = { .len = sizeof(struct in6_addr), },
|
||||
[IFAL_LABEL] = { .len = sizeof(u32), },
|
||||
};
|
||||
|
||||
static int ip6addrlbl_newdel(struct sk_buff *skb, struct nlmsghdr *nlh,
|
||||
void *arg)
|
||||
{
|
||||
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);
|
||||
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 &&
|
||||
!__dev_get_by_index(&init_net, ifal->ifal_index))
|
||||
return -EINVAL;
|
||||
|
||||
if (!tb[IFAL_ADDRESS])
|
||||
return -EINVAL;
|
||||
|
||||
pfx = nla_data(tb[IFAL_ADDRESS]);
|
||||
if (!pfx)
|
||||
return -EINVAL;
|
||||
|
||||
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:
|
||||
err = ip6addrlbl_add(pfx, ifal->ifal_prefixlen,
|
||||
ifal->ifal_index, label,
|
||||
nlh->nlmsg_flags & NLM_F_REPLACE);
|
||||
break;
|
||||
case RTM_DELADDRLABEL:
|
||||
err = ip6addrlbl_del(pfx, ifal->ifal_prefixlen,
|
||||
ifal->ifal_index);
|
||||
break;
|
||||
default:
|
||||
err = -EOPNOTSUPP;
|
||||
}
|
||||
return err;
|
||||
}
|
||||
|
||||
static inline 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 pid, u32 seq, int event,
|
||||
unsigned int flags)
|
||||
{
|
||||
struct nlmsghdr *nlh = nlmsg_put(skb, pid, seq, event,
|
||||
sizeof(struct ifaddrlblmsg), flags);
|
||||
if (!nlh)
|
||||
return -EMSGSIZE;
|
||||
|
||||
ip6addrlbl_putmsg(nlh, p->prefixlen, p->ifindex, lseq);
|
||||
|
||||
if (nla_put(skb, IFAL_ADDRESS, 16, &p->prefix) < 0 ||
|
||||
nla_put_u32(skb, IFAL_LABEL, p->label) < 0) {
|
||||
nlmsg_cancel(skb, nlh);
|
||||
return -EMSGSIZE;
|
||||
}
|
||||
|
||||
return nlmsg_end(skb, nlh);
|
||||
}
|
||||
|
||||
static int ip6addrlbl_dump(struct sk_buff *skb, struct netlink_callback *cb)
|
||||
{
|
||||
struct ip6addrlbl_entry *p;
|
||||
struct hlist_node *pos;
|
||||
int idx = 0, s_idx = cb->args[0];
|
||||
int err;
|
||||
|
||||
rcu_read_lock();
|
||||
hlist_for_each_entry_rcu(p, pos, &ip6addrlbl_table.head, list) {
|
||||
if (idx >= s_idx) {
|
||||
if ((err = ip6addrlbl_fill(skb, p,
|
||||
ip6addrlbl_table.seq,
|
||||
NETLINK_CB(cb->skb).pid,
|
||||
cb->nlh->nlmsg_seq,
|
||||
RTM_NEWADDRLABEL,
|
||||
NLM_F_MULTI)) <= 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,
|
||||
void *arg)
|
||||
{
|
||||
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);
|
||||
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 &&
|
||||
!__dev_get_by_index(&init_net, ifal->ifal_index))
|
||||
return -EINVAL;
|
||||
|
||||
if (!tb[IFAL_ADDRESS])
|
||||
return -EINVAL;
|
||||
|
||||
addr = nla_data(tb[IFAL_ADDRESS]);
|
||||
if (!addr)
|
||||
return -EINVAL;
|
||||
|
||||
rcu_read_lock();
|
||||
p = __ipv6_addr_label(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;
|
||||
}
|
||||
|
||||
if (!(skb = nlmsg_new(ip6addrlbl_msgsize(), GFP_KERNEL))) {
|
||||
ip6addrlbl_put(p);
|
||||
return -ENOBUFS;
|
||||
}
|
||||
|
||||
err = ip6addrlbl_fill(skb, p, lseq,
|
||||
NETLINK_CB(in_skb).pid, 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, NETLINK_CB(in_skb).pid);
|
||||
out:
|
||||
return err;
|
||||
}
|
||||
|
||||
void __init ipv6_addr_label_rtnl_register(void)
|
||||
{
|
||||
__rtnl_register(PF_INET6, RTM_NEWADDRLABEL, ip6addrlbl_newdel, NULL);
|
||||
__rtnl_register(PF_INET6, RTM_DELADDRLABEL, ip6addrlbl_newdel, NULL);
|
||||
__rtnl_register(PF_INET6, RTM_GETADDRLABEL, ip6addrlbl_get, ip6addrlbl_dump);
|
||||
}
|
||||
|
||||
Loading…
Reference in a new issue