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authorgVisor bot <gvisor-bot@google.com>2019-08-15 18:22:50 +0000
committergVisor bot <gvisor-bot@google.com>2019-08-15 18:22:50 +0000
commitdc6a11caacaddfc79be4400f83037cb34cbec9a2 (patch)
treed69cbfc1e376b8dcf8a71c04603cc82ea19b6792 /pkg/tcpip/transport/udp
parent634b0024cf81844a2b5901a142ec128042640d72 (diff)
parent816a9211e96b3eabe7bead7fa625831fe8d2fbf8 (diff)
Merge 816a9211 (automated)
Diffstat (limited to 'pkg/tcpip/transport/udp')
-rw-r--r--pkg/tcpip/transport/udp/endpoint.go47
-rw-r--r--pkg/tcpip/transport/udp/endpoint_state.go49
2 files changed, 49 insertions, 47 deletions
diff --git a/pkg/tcpip/transport/udp/endpoint.go b/pkg/tcpip/transport/udp/endpoint.go
index c50f5abb3..640bb8667 100644
--- a/pkg/tcpip/transport/udp/endpoint.go
+++ b/pkg/tcpip/transport/udp/endpoint.go
@@ -178,53 +178,6 @@ func (e *endpoint) IPTables() (iptables.IPTables, error) {
return e.stack.IPTables(), nil
}
-// Resume implements tcpip.ResumableEndpoint.Resume.
-func (e *endpoint) Resume(s *stack.Stack) {
- e.stack = s
-
- for _, m := range e.multicastMemberships {
- if err := e.stack.JoinGroup(e.netProto, m.nicID, m.multicastAddr); err != nil {
- panic(err)
- }
- }
-
- if e.state != stateBound && e.state != stateConnected {
- return
- }
-
- netProto := e.effectiveNetProtos[0]
- // Connect() and bindLocked() both assert
- //
- // netProto == header.IPv6ProtocolNumber
- //
- // before creating a multi-entry effectiveNetProtos.
- if len(e.effectiveNetProtos) > 1 {
- netProto = header.IPv6ProtocolNumber
- }
-
- var err *tcpip.Error
- if e.state == stateConnected {
- e.route, err = e.stack.FindRoute(e.regNICID, e.id.LocalAddress, e.id.RemoteAddress, netProto, e.multicastLoop)
- if err != nil {
- panic(*err)
- }
- } else if len(e.id.LocalAddress) != 0 { // stateBound
- if e.stack.CheckLocalAddress(e.regNICID, netProto, e.id.LocalAddress) == 0 {
- panic(tcpip.ErrBadLocalAddress)
- }
- }
-
- // Our saved state had a port, but we don't actually have a
- // reservation. We need to remove the port from our state, but still
- // pass it to the reservation machinery.
- id := e.id
- e.id.LocalPort = 0
- e.id, err = e.registerWithStack(e.regNICID, e.effectiveNetProtos, id)
- if err != nil {
- panic(*err)
- }
-}
-
// Read reads data from the endpoint. This method does not block if
// there is no data pending.
func (e *endpoint) Read(addr *tcpip.FullAddress) (buffer.View, tcpip.ControlMessages, *tcpip.Error) {
diff --git a/pkg/tcpip/transport/udp/endpoint_state.go b/pkg/tcpip/transport/udp/endpoint_state.go
index 86db36260..bc821a96f 100644
--- a/pkg/tcpip/transport/udp/endpoint_state.go
+++ b/pkg/tcpip/transport/udp/endpoint_state.go
@@ -15,7 +15,9 @@
package udp
import (
+ "gvisor.dev/gvisor/pkg/tcpip"
"gvisor.dev/gvisor/pkg/tcpip/buffer"
+ "gvisor.dev/gvisor/pkg/tcpip/header"
"gvisor.dev/gvisor/pkg/tcpip/stack"
)
@@ -64,3 +66,50 @@ func (e *endpoint) loadRcvBufSizeMax(max int) {
func (e *endpoint) afterLoad() {
stack.StackFromEnv.RegisterRestoredEndpoint(e)
}
+
+// Resume implements tcpip.ResumableEndpoint.Resume.
+func (e *endpoint) Resume(s *stack.Stack) {
+ e.stack = s
+
+ for _, m := range e.multicastMemberships {
+ if err := e.stack.JoinGroup(e.netProto, m.nicID, m.multicastAddr); err != nil {
+ panic(err)
+ }
+ }
+
+ if e.state != stateBound && e.state != stateConnected {
+ return
+ }
+
+ netProto := e.effectiveNetProtos[0]
+ // Connect() and bindLocked() both assert
+ //
+ // netProto == header.IPv6ProtocolNumber
+ //
+ // before creating a multi-entry effectiveNetProtos.
+ if len(e.effectiveNetProtos) > 1 {
+ netProto = header.IPv6ProtocolNumber
+ }
+
+ var err *tcpip.Error
+ if e.state == stateConnected {
+ e.route, err = e.stack.FindRoute(e.regNICID, e.id.LocalAddress, e.id.RemoteAddress, netProto, e.multicastLoop)
+ if err != nil {
+ panic(*err)
+ }
+ } else if len(e.id.LocalAddress) != 0 { // stateBound
+ if e.stack.CheckLocalAddress(e.regNICID, netProto, e.id.LocalAddress) == 0 {
+ panic(tcpip.ErrBadLocalAddress)
+ }
+ }
+
+ // Our saved state had a port, but we don't actually have a
+ // reservation. We need to remove the port from our state, but still
+ // pass it to the reservation machinery.
+ id := e.id
+ e.id.LocalPort = 0
+ e.id, err = e.registerWithStack(e.regNICID, e.effectiveNetProtos, id)
+ if err != nil {
+ panic(*err)
+ }
+}