aboutsummaryrefslogtreecommitdiffstats
path: root/net/ipv4/udp.c
diff options
context:
space:
mode:
authorPaolo Abeni <pabeni@redhat.com>2018-11-07 12:38:30 +0100
committerDavid S. Miller <davem@davemloft.net>2018-11-07 16:23:04 -0800
commitbcd1665e3569b0a6f569514f023a41fc7df0b4a3 (patch)
tree4e28d9a2711bdfa1069efdfb49350ede0e1d97f7 /net/ipv4/udp.c
parentudp: implement GRO for plain UDP sockets. (diff)
downloadlinux-dev-bcd1665e3569b0a6f569514f023a41fc7df0b4a3.tar.xz
linux-dev-bcd1665e3569b0a6f569514f023a41fc7df0b4a3.zip
udp: add support for UDP_GRO cmsg
When UDP GRO is enabled, the UDP_GRO cmsg will carry the ingress datagram size. User-space can use such info to compute the original packets layout. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp.c')
-rw-r--r--net/ipv4/udp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 9fc08b098ced..dddc6fe90f51 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1711,6 +1711,10 @@ try_again:
memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
*addr_len = sizeof(*sin);
}
+
+ if (udp_sk(sk)->gro_enabled)
+ udp_cmsg_recv(msg, sk, skb);
+
if (inet->cmsg_flags)
ip_cmsg_recv_offset(msg, sk, skb, sizeof(struct udphdr), off);