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authorBhasker Hariharan <bhaskerh@google.com>2020-07-22 15:12:56 -0700
committergVisor bot <gvisor-bot@google.com>2020-07-22 15:33:33 -0700
commit71bf90c55bd888f9b9c493533ca5e4b2b4b3d21d (patch)
treec28e9fb6e24c4f442839b041d5a1ba5105ff1dbd /runsc/boot
parent13c0cca50e061c9b9a3ae8e13e8baa0f29909370 (diff)
Support for receiving outbound packets in AF_PACKET.
Updates #173 PiperOrigin-RevId: 322665518
Diffstat (limited to 'runsc/boot')
-rw-r--r--runsc/boot/BUILD1
-rw-r--r--runsc/boot/network.go4
2 files changed, 5 insertions, 0 deletions
diff --git a/runsc/boot/BUILD b/runsc/boot/BUILD
index 55d45aaa6..9f52438c2 100644
--- a/runsc/boot/BUILD
+++ b/runsc/boot/BUILD
@@ -90,6 +90,7 @@ go_library(
"//pkg/tcpip",
"//pkg/tcpip/link/fdbased",
"//pkg/tcpip/link/loopback",
+ "//pkg/tcpip/link/packetsocket",
"//pkg/tcpip/link/qdisc/fifo",
"//pkg/tcpip/link/sniffer",
"//pkg/tcpip/network/arp",
diff --git a/runsc/boot/network.go b/runsc/boot/network.go
index 14d2f56a5..4e1fa7665 100644
--- a/runsc/boot/network.go
+++ b/runsc/boot/network.go
@@ -25,6 +25,7 @@ import (
"gvisor.dev/gvisor/pkg/tcpip"
"gvisor.dev/gvisor/pkg/tcpip/link/fdbased"
"gvisor.dev/gvisor/pkg/tcpip/link/loopback"
+ "gvisor.dev/gvisor/pkg/tcpip/link/packetsocket"
"gvisor.dev/gvisor/pkg/tcpip/link/qdisc/fifo"
"gvisor.dev/gvisor/pkg/tcpip/link/sniffer"
"gvisor.dev/gvisor/pkg/tcpip/network/arp"
@@ -252,6 +253,9 @@ func (n *Network) CreateLinksAndRoutes(args *CreateLinksAndRoutesArgs, _ *struct
linkEP = fifo.New(linkEP, runtime.GOMAXPROCS(0), 1000)
}
+ // Enable support for AF_PACKET sockets to receive outgoing packets.
+ linkEP = packetsocket.New(linkEP)
+
log.Infof("Enabling interface %q with id %d on addresses %+v (%v) w/ %d channels", link.Name, nicID, link.Addresses, mac, link.NumChannels)
if err := n.createNICWithAddrs(nicID, link.Name, linkEP, link.Addresses); err != nil {
return err