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| author | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2007-11-14 15:56:23 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 14:53:58 -0800 |
| commit | 2a8cc6c89039e0530a3335954253b76ed0f9339a (patch) | |
| tree | df7c77496032025bf73d0ee60441e0cc2724ed29 /net/ipv6/addrconf.c | |
| parent | 303065a8545bf7524550bd9564afb48e8a685a2d (diff) | |
| download | linux-2a8cc6c89039e0530a3335954253b76ed0f9339a.tar.gz linux-2a8cc6c89039e0530a3335954253b76ed0f9339a.tar.bz2 linux-2a8cc6c89039e0530a3335954253b76ed0f9339a.zip | |
[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>
Diffstat (limited to 'net/ipv6/addrconf.c')
| -rw-r--r-- | net/ipv6/addrconf.c | 40 |
1 files changed, 9 insertions, 31 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index e1e591bfbdca..a70cecf8fc8d 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -874,36 +874,6 @@ static inline int ipv6_saddr_preferred(int type) 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) { @@ -4189,7 +4159,13 @@ EXPORT_SYMBOL(unregister_inet6addr_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; + } /* The addrconf netdev notifier requires that loopback_dev * has it's ipv6 private information allocated and setup @@ -4240,6 +4216,8 @@ int __init addrconf_init(void) __rtnl_register(PF_INET6, RTM_GETMULTICAST, NULL, inet6_dump_ifmcaddr); __rtnl_register(PF_INET6, RTM_GETANYCAST, NULL, inet6_dump_ifacaddr); + ipv6_addr_label_rtnl_register(); + #ifdef CONFIG_SYSCTL addrconf_sysctl.sysctl_header = register_sysctl_table(addrconf_sysctl.addrconf_root_dir); |