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authorgVisor bot <gvisor-bot@google.com>2020-11-16 22:39:16 +0000
committergVisor bot <gvisor-bot@google.com>2020-11-16 22:39:16 +0000
commit06e77263c317c7b00c6d274e16faacdad87f53e0 (patch)
tree0df104b48db616eceda14d938fadaa15ba6ace7c /pkg/sentry/fs/dev
parentd2e975b6308a95c3e55b395a41b633c29dd674fc (diff)
parentcc5cfce4c6c9df1a44433681b87d411a67b09b28 (diff)
Merge release-20201109.0-51-gcc5cfce4c (automated)
Diffstat (limited to 'pkg/sentry/fs/dev')
-rw-r--r--pkg/sentry/fs/dev/net_tun.go14
1 files changed, 1 insertions, 13 deletions
diff --git a/pkg/sentry/fs/dev/net_tun.go b/pkg/sentry/fs/dev/net_tun.go
index 19ffdec47..5227ef652 100644
--- a/pkg/sentry/fs/dev/net_tun.go
+++ b/pkg/sentry/fs/dev/net_tun.go
@@ -15,8 +15,6 @@
package dev
import (
- "fmt"
-
"gvisor.dev/gvisor/pkg/abi/linux"
"gvisor.dev/gvisor/pkg/context"
"gvisor.dev/gvisor/pkg/sentry/arch"
@@ -27,7 +25,6 @@ import (
"gvisor.dev/gvisor/pkg/sentry/socket/netstack"
"gvisor.dev/gvisor/pkg/syserror"
"gvisor.dev/gvisor/pkg/tcpip/link/tun"
- "gvisor.dev/gvisor/pkg/tcpip/network/arp"
"gvisor.dev/gvisor/pkg/usermem"
"gvisor.dev/gvisor/pkg/waiter"
)
@@ -112,16 +109,7 @@ func (n *netTunFileOperations) Ioctl(ctx context.Context, file *fs.File, io user
return 0, err
}
flags := usermem.ByteOrder.Uint16(req.Data[:])
- created, err := n.device.SetIff(stack.Stack, req.Name(), flags)
- if err == nil && created {
- // Always start with an ARP address for interfaces so they can handle ARP
- // packets.
- nicID := n.device.NICID()
- if err := stack.Stack.AddAddress(nicID, arp.ProtocolNumber, arp.ProtocolAddress); err != nil {
- panic(fmt.Sprintf("failed to add ARP address after creating new TUN/TAP interface with ID = %d", nicID))
- }
- }
- return 0, err
+ return 0, n.device.SetIff(stack.Stack, req.Name(), flags)
case linux.TUNGETIFF:
var req linux.IFReq