Update dependencies

2024-11-01 17:33:34 +00:00
parent 033ac0b400
commit 5cdfab398d
3596 changed files with 1033483 additions and 259 deletions
--- a/vendor/github.com/google/nftables/expr/nat.go
+++ b/vendor/github.com/google/nftables/expr/nat.go
@@ -0,0 +1,132 @@
+// Copyright 2018 Google LLC. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package expr
+
+import (
+	"encoding/binary"
+
+	"github.com/google/nftables/binaryutil"
+	"github.com/mdlayher/netlink"
+	"golang.org/x/sys/unix"
+)
+
+type NATType uint32
+
+// Possible NATType values.
+const (
+	NATTypeSourceNAT NATType = unix.NFT_NAT_SNAT
+	NATTypeDestNAT   NATType = unix.NFT_NAT_DNAT
+)
+
+type NAT struct {
+	Type        NATType
+	Family      uint32 // TODO: typed const
+	RegAddrMin  uint32
+	RegAddrMax  uint32
+	RegProtoMin uint32
+	RegProtoMax uint32
+	Random      bool
+	FullyRandom bool
+	Persistent  bool
+	Prefix      bool
+}
+
+// |00048|N-|00001|	|len |flags| type|
+// |00008|--|00001|	|len |flags| type|
+// | 6e 61 74 00  |	|      data      |	 n a t
+// |00036|N-|00002|	|len |flags| type|
+// |00008|--|00001|	|len |flags| type| NFTA_NAT_TYPE
+// | 00 00 00 01  |	|      data      |  NFT_NAT_DNAT
+// |00008|--|00002|	|len |flags| type| NFTA_NAT_FAMILY
+// | 00 00 00 02  |	|      data      |   NFPROTO_IPV4
+// |00008|--|00003|	|len |flags| type| NFTA_NAT_REG_ADDR_MIN
+// | 00 00 00 01  |	|      data      |  reg 1
+// |00008|--|00005|	|len |flags| type| NFTA_NAT_REG_PROTO_MIN
+// | 00 00 00 02  |	|      data      |  reg 2
+
+func (e *NAT) marshal(fam byte) ([]byte, error) {
+	attrs := []netlink.Attribute{
+		{Type: unix.NFTA_NAT_TYPE, Data: binaryutil.BigEndian.PutUint32(uint32(e.Type))},
+		{Type: unix.NFTA_NAT_FAMILY, Data: binaryutil.BigEndian.PutUint32(e.Family)},
+	}
+	if e.RegAddrMin != 0 {
+		attrs = append(attrs, netlink.Attribute{Type: unix.NFTA_NAT_REG_ADDR_MIN, Data: binaryutil.BigEndian.PutUint32(e.RegAddrMin)})
+		if e.RegAddrMax != 0 {
+			attrs = append(attrs, netlink.Attribute{Type: unix.NFTA_NAT_REG_ADDR_MAX, Data: binaryutil.BigEndian.PutUint32(e.RegAddrMax)})
+		}
+	}
+	if e.RegProtoMin != 0 {
+		attrs = append(attrs, netlink.Attribute{Type: unix.NFTA_NAT_REG_PROTO_MIN, Data: binaryutil.BigEndian.PutUint32(e.RegProtoMin)})
+		if e.RegProtoMax != 0 {
+			attrs = append(attrs, netlink.Attribute{Type: unix.NFTA_NAT_REG_PROTO_MAX, Data: binaryutil.BigEndian.PutUint32(e.RegProtoMax)})
+		}
+	}
+	flags := uint32(0)
+	if e.Random {
+		flags |= NF_NAT_RANGE_PROTO_RANDOM
+	}
+	if e.FullyRandom {
+		flags |= NF_NAT_RANGE_PROTO_RANDOM_FULLY
+	}
+	if e.Persistent {
+		flags |= NF_NAT_RANGE_PERSISTENT
+	}
+	if e.Prefix {
+		flags |= NF_NAT_RANGE_PREFIX
+	}
+	if flags != 0 {
+		attrs = append(attrs, netlink.Attribute{Type: unix.NFTA_NAT_FLAGS, Data: binaryutil.BigEndian.PutUint32(flags)})
+	}
+
+	data, err := netlink.MarshalAttributes(attrs)
+	if err != nil {
+		return nil, err
+	}
+	return netlink.MarshalAttributes([]netlink.Attribute{
+		{Type: unix.NFTA_EXPR_NAME, Data: []byte("nat\x00")},
+		{Type: unix.NLA_F_NESTED | unix.NFTA_EXPR_DATA, Data: data},
+	})
+}
+
+func (e *NAT) unmarshal(fam byte, data []byte) error {
+	ad, err := netlink.NewAttributeDecoder(data)
+	if err != nil {
+		return err
+	}
+	ad.ByteOrder = binary.BigEndian
+	for ad.Next() {
+		switch ad.Type() {
+		case unix.NFTA_NAT_TYPE:
+			e.Type = NATType(ad.Uint32())
+		case unix.NFTA_NAT_FAMILY:
+			e.Family = ad.Uint32()
+		case unix.NFTA_NAT_REG_ADDR_MIN:
+			e.RegAddrMin = ad.Uint32()
+		case unix.NFTA_NAT_REG_ADDR_MAX:
+			e.RegAddrMax = ad.Uint32()
+		case unix.NFTA_NAT_REG_PROTO_MIN:
+			e.RegProtoMin = ad.Uint32()
+		case unix.NFTA_NAT_REG_PROTO_MAX:
+			e.RegProtoMax = ad.Uint32()
+		case unix.NFTA_NAT_FLAGS:
+			flags := ad.Uint32()
+			e.Persistent = (flags & NF_NAT_RANGE_PERSISTENT) != 0
+			e.Random = (flags & NF_NAT_RANGE_PROTO_RANDOM) != 0
+			e.FullyRandom = (flags & NF_NAT_RANGE_PROTO_RANDOM_FULLY) != 0
+			e.Prefix = (flags & NF_NAT_RANGE_PREFIX) != 0
+		}
+	}
+	return ad.Err()
+}