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authorAlexey Kodanev <alexey.kodanev@oracle.com>2018-04-03 15:00:07 +0300
committerDavid S. Miller <davem@davemloft.net>2018-04-04 11:31:57 -0400
commit7d6850f7c618d8f13d7945dd0dcee98223be6459 (patch)
treef282b9757cd626bc93f194ac09faccca3c4772ff /net
parent0d3ad8549c6327a8e0bad0fb785c00e07672f296 (diff)
ipv6: add a wrapper for ip6_dst_store() with flowi6 checks
Move commonly used pattern of ip6_dst_store() usage to a separate function - ip6_sk_dst_store_flow(), which will check the addresses for equality using the flow information, before saving them. There is no functional changes in this patch. In addition, it will be used in the next patch, in ip6_sk_dst_lookup_flow(). Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/datagram.c9
-rw-r--r--net/ipv6/route.c17
2 files changed, 18 insertions, 8 deletions
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 88bc2ef7c7a8..a02ad100f0d7 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -106,14 +106,7 @@ int ip6_datagram_dst_update(struct sock *sk, bool fix_sk_saddr)
}
}
- ip6_dst_store(sk, dst,
- ipv6_addr_equal(&fl6.daddr, &sk->sk_v6_daddr) ?
- &sk->sk_v6_daddr : NULL,
-#ifdef CONFIG_IPV6_SUBTREES
- ipv6_addr_equal(&fl6.saddr, &np->saddr) ?
- &np->saddr :
-#endif
- NULL);
+ ip6_sk_dst_store_flow(sk, dst, &fl6);
out:
fl6_sock_release(flowlabel);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index f239f91d2efb..49b954d6d0fa 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2229,6 +2229,23 @@ void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu)
}
EXPORT_SYMBOL_GPL(ip6_sk_update_pmtu);
+void ip6_sk_dst_store_flow(struct sock *sk, struct dst_entry *dst,
+ const struct flowi6 *fl6)
+{
+#ifdef CONFIG_IPV6_SUBTREES
+ struct ipv6_pinfo *np = inet6_sk(sk);
+#endif
+
+ ip6_dst_store(sk, dst,
+ ipv6_addr_equal(&fl6->daddr, &sk->sk_v6_daddr) ?
+ &sk->sk_v6_daddr : NULL,
+#ifdef CONFIG_IPV6_SUBTREES
+ ipv6_addr_equal(&fl6->saddr, &np->saddr) ?
+ &np->saddr :
+#endif
+ NULL);
+}
+
/* Handle redirects */
struct ip6rd_flowi {
struct flowi6 fl6;