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ipv6: allow routes to be configured with expire values

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Add the support for adding expire value to routes,  requested by
Tom Gundersen <teg@jklm.no> for systemd-networkd, and NetworkManager
wants it too.

implement it by adding the new RTNETLINK attribute RTA_EXPIRES.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2015-12-16 17:50:11 +08:00 • committed by David S. Miller
parent b3379041dd
commit 32bc201e19
2 changed files with 11 additions and 0 deletions
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10
net/ipv6/route.c
View file

@ -2709,6 +2709,7 @@ static const struct nla_policy rtm_ipv6_policy[RTA_MAX+1] = {
[RTA_PREF] = { .type = NLA_U8 },
[RTA_ENCAP_TYPE] = { .type = NLA_U16 },
[RTA_ENCAP] = { .type = NLA_NESTED },
[RTA_EXPIRES] = { .type = NLA_U32 },
};
static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh,
@ -2809,6 +2810,15 @@ static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh,
if (tb[RTA_ENCAP_TYPE])
cfg->fc_encap_type = nla_get_u16(tb[RTA_ENCAP_TYPE]);
if (tb[RTA_EXPIRES]) {
unsigned long timeout = addrconf_timeout_fixup(nla_get_u32(tb[RTA_EXPIRES]), HZ);
if (addrconf_finite_timeout(timeout)) {
cfg->fc_expires = jiffies_to_clock_t(timeout * HZ);
cfg->fc_flags |= RTF_EXPIRES;
}
}
err = 0;
errout:
return err;