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authorHerbert Xu <herbert@gondor.apana.org.au>2017-01-12 16:10:00 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2017-01-12 16:10:00 +0800
commit4cf0662888026d5c1b62ed3fa8dc048a2ff2e124 (patch)
treea5c92c5024c599a00bfd8d402d2b7b0a619b0259 /net/ipv4/ip_sockglue.c
parentc821f6ab2e47946f35ee2f30781c5185e5d07f65 (diff)
parenta121103c922847ba5010819a3f250f1f7fc84ab8 (diff)
downloadop-kernel-dev-4cf0662888026d5c1b62ed3fa8dc048a2ff2e124.zip
op-kernel-dev-4cf0662888026d5c1b62ed3fa8dc048a2ff2e124.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Merging 4.10-rc3 so that the cryptodev tree builds on ARM64.
Diffstat (limited to 'net/ipv4/ip_sockglue.c')
-rw-r--r--net/ipv4/ip_sockglue.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 57e1405..53ae0c6 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -1225,8 +1225,14 @@ void ipv4_pktinfo_prepare(const struct sock *sk, struct sk_buff *skb)
* which has interface index (iif) as the first member of the
* underlying inet{6}_skb_parm struct. This code then overlays
* PKTINFO_SKB_CB and in_pktinfo also has iif as the first
- * element so the iif is picked up from the prior IPCB
+ * element so the iif is picked up from the prior IPCB. If iif
+ * is the loopback interface, then return the sending interface
+ * (e.g., process binds socket to eth0 for Tx which is
+ * redirected to loopback in the rtable/dst).
*/
+ if (pktinfo->ipi_ifindex == LOOPBACK_IFINDEX)
+ pktinfo->ipi_ifindex = inet_iif(skb);
+
pktinfo->ipi_spec_dst.s_addr = fib_compute_spec_dst(skb);
} else {
pktinfo->ipi_ifindex = 0;
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