path: root/net/ipv4/af_inet.c
diff options
authorMike Manning <mmanning@vyatta.att-mail.com>2018-11-07 15:36:05 +0000
committerDavid S. Miller <davem@davemloft.net>2018-11-07 16:12:38 -0800
commit6897445fb194c8ad046df4a13e1ee9f080a5a21e (patch)
tree0064e564646e9066a26230163ba453adb505fe8f /net/ipv4/af_inet.c
parentnet: ensure unbound datagram socket to be chosen when not in a VRF (diff)
net: provide a sysctl raw_l3mdev_accept for raw socket lookup with VRFs
Add a sysctl raw_l3mdev_accept to control raw socket lookup in a manner similar to use of tcp_l3mdev_accept for stream and of udp_l3mdev_accept for datagram sockets. Have this default to enabled for reasons of backwards compatibility. This is so as to specify the output device with cmsg and IP_PKTINFO, but using a socket not bound to the corresponding VRF. This allows e.g. older ping implementations to be run with specifying the device but without executing it in the VRF. If the option is disabled, packets received in a VRF context are only handled by a raw socket bound to the VRF, and correspondingly packets in the default VRF are only handled by a socket not bound to any VRF. Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com> Reviewed-by: David Ahern <dsahern@gmail.com> Tested-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/af_inet.c')
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 1fbe2f815474..07749c5b0a50 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1964,6 +1964,8 @@ static int __init inet_init(void)
/* Add UDP-Lite (RFC 3828) */
+ raw_init();