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authorKevin Krakauer <krakauer@google.com>2020-01-21 13:37:25 -0800
committerKevin Krakauer <krakauer@google.com>2020-01-21 13:37:25 -0800
commit47bc7550c0b8fcde7b3452bf536082e955882026 (patch)
tree00114329a0115ada0fd7091464b672bde9a36cfa /pkg/tcpip
parent62357a0afb5f4128a11dc9a1dfadd2957ec39e2d (diff)
Fixing stuff
Diffstat (limited to 'pkg/tcpip')
-rw-r--r--pkg/tcpip/iptables/types.go21
-rw-r--r--pkg/tcpip/packet_buffer.go25
2 files changed, 7 insertions, 39 deletions
diff --git a/pkg/tcpip/iptables/types.go b/pkg/tcpip/iptables/types.go
index 4f2a4d65e..a0bfc8b41 100644
--- a/pkg/tcpip/iptables/types.go
+++ b/pkg/tcpip/iptables/types.go
@@ -14,7 +14,9 @@
package iptables
-import "gvisor.dev/gvisor/pkg/tcpip"
+import (
+ "gvisor.dev/gvisor/pkg/tcpip"
+)
// A Hook specifies one of the hooks built into the network stack.
//
@@ -161,21 +163,10 @@ type Rule struct {
Target Target
}
-// TODO: This is gross.
-// TODO: Save this in SetEntries.
-// TODO: Utilize this when traversing tables.
+// IPHeaderFilter holds basic IP filtering data common to every rule.
type IPHeaderFilter struct {
- Source [4]byte
- Destination [4]byte
- SourceMask [4]byte
- DestinationMask [4]byte
- OutputInterface string
- InputInterface string
- OutputInterfaceMask string
- InputInterfaceMask string
- Protocol tcpip.TransportProtocolNumber
- Flags uint8
- InverseFlags uint8
+ // Protocol matches the transport protocol.
+ Protocol tcpip.TransportProtocolNumber
}
// A Matcher is the interface for matching packets.
diff --git a/pkg/tcpip/packet_buffer.go b/pkg/tcpip/packet_buffer.go
index 7a036b93c..ab24372e7 100644
--- a/pkg/tcpip/packet_buffer.go
+++ b/pkg/tcpip/packet_buffer.go
@@ -13,9 +13,7 @@
package tcpip
-import (
- "gvisor.dev/gvisor/pkg/tcpip/buffer"
-)
+import "gvisor.dev/gvisor/pkg/tcpip/buffer"
// A PacketBuffer contains all the data of a network packet.
//
@@ -67,24 +65,3 @@ func (pk PacketBuffer) Clone() PacketBuffer {
pk.Data = pk.Data.Clone(nil)
return pk
}
-
-//// TransportProtocol returns the transport protocol of pk.
-////
-//// Precondition: pk.NetworkHeader is set.
-//func (pk PacketBuffer) TransportProtocolIPv4() uint16 {
-// if pk.NetworkHeader == nil {
-// panic("This should only be called when pk.NetworkHeader is set.")
-// }
-// return header.IPv4(pk.NetworkHeader).TransportProtocol()
-//}
-
-// func (pk Packet) findNetHeader() header.IPv4 {
-// // Inbound:
-// // Data holds everything, but may have had some headers shaved off.
-// // Figure out whether it's set or still somewhere in data and return
-// // appropriately.
-
-// // Outbound:
-// // NetworkHeader will be set if we've added one. Otherwise there's no
-// // header.
-// }