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5 Commits

Author SHA1 Message Date
Nate Brown e25016a946 Fix e2e unsafe inbound test 2025-11-21 15:51:02 -06:00
Nate Brown c2381e7019 Add some comments to make table config clearer 2025-11-21 14:29:46 -06:00
Nate Brown 2b0d57b464 Track unsafe in the mock firewall 2025-11-21 14:23:00 -06:00
Nate Brown c69b009650 Change name from forward to unsafe 2025-11-21 14:21:08 -06:00
Nate Brown 281a9017ce Add forward tables to handle unsafe network packets distinctly from vpn network packets 2025-11-21 14:18:26 -06:00
60 changed files with 519 additions and 2092 deletions
+1 -1
View File
@@ -14,7 +14,7 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v6
- uses: actions/checkout@v5
- uses: actions/setup-go@v6
with:
+11 -11
View File
@@ -10,7 +10,7 @@ jobs:
name: Build Linux/BSD All
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v6
- uses: actions/checkout@v5
- uses: actions/setup-go@v6
with:
@@ -24,7 +24,7 @@ jobs:
mv build/*.tar.gz release
- name: Upload artifacts
uses: actions/upload-artifact@v6
uses: actions/upload-artifact@v5
with:
name: linux-latest
path: release
@@ -33,7 +33,7 @@ jobs:
name: Build Windows
runs-on: windows-latest
steps:
- uses: actions/checkout@v6
- uses: actions/checkout@v5
- uses: actions/setup-go@v6
with:
@@ -55,7 +55,7 @@ jobs:
mv dist\windows\wintun build\dist\windows\
- name: Upload artifacts
uses: actions/upload-artifact@v6
uses: actions/upload-artifact@v5
with:
name: windows-latest
path: build
@@ -66,7 +66,7 @@ jobs:
HAS_SIGNING_CREDS: ${{ secrets.AC_USERNAME != '' }}
runs-on: macos-latest
steps:
- uses: actions/checkout@v6
- uses: actions/checkout@v5
- uses: actions/setup-go@v6
with:
@@ -75,7 +75,7 @@ jobs:
- name: Import certificates
if: env.HAS_SIGNING_CREDS == 'true'
uses: Apple-Actions/import-codesign-certs@v6
uses: Apple-Actions/import-codesign-certs@v5
with:
p12-file-base64: ${{ secrets.APPLE_DEVELOPER_CERTIFICATE_P12_BASE64 }}
p12-password: ${{ secrets.APPLE_DEVELOPER_CERTIFICATE_PASSWORD }}
@@ -104,7 +104,7 @@ jobs:
fi
- name: Upload artifacts
uses: actions/upload-artifact@v6
uses: actions/upload-artifact@v5
with:
name: darwin-latest
path: ./release/*
@@ -124,11 +124,11 @@ jobs:
# be overwritten
- name: Checkout code
if: ${{ env.HAS_DOCKER_CREDS == 'true' }}
uses: actions/checkout@v6
uses: actions/checkout@v5
- name: Download artifacts
if: ${{ env.HAS_DOCKER_CREDS == 'true' }}
uses: actions/download-artifact@v7
uses: actions/download-artifact@v6
with:
name: linux-latest
path: artifacts
@@ -160,10 +160,10 @@ jobs:
needs: [build-linux, build-darwin, build-windows]
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v6
- uses: actions/checkout@v5
- name: Download artifacts
uses: actions/download-artifact@v7
uses: actions/download-artifact@v6
with:
path: artifacts
+1 -1
View File
@@ -20,7 +20,7 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v6
- uses: actions/checkout@v5
- uses: actions/setup-go@v6
with:
+1 -1
View File
@@ -18,7 +18,7 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v6
- uses: actions/checkout@v5
- uses: actions/setup-go@v6
with:
+6 -6
View File
@@ -18,7 +18,7 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v6
- uses: actions/checkout@v5
- uses: actions/setup-go@v6
with:
@@ -45,7 +45,7 @@ jobs:
- name: Build test mobile
run: make build-test-mobile
- uses: actions/upload-artifact@v6
- uses: actions/upload-artifact@v5
with:
name: e2e packet flow linux-latest
path: e2e/mermaid/linux-latest
@@ -56,7 +56,7 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v6
- uses: actions/checkout@v5
- uses: actions/setup-go@v6
with:
@@ -77,7 +77,7 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v6
- uses: actions/checkout@v5
- uses: actions/setup-go@v6
with:
@@ -98,7 +98,7 @@ jobs:
os: [windows-latest, macos-latest]
steps:
- uses: actions/checkout@v6
- uses: actions/checkout@v5
- uses: actions/setup-go@v6
with:
@@ -125,7 +125,7 @@ jobs:
- name: End 2 end
run: make e2evv
- uses: actions/upload-artifact@v6
- uses: actions/upload-artifact@v5
with:
name: e2e packet flow ${{ matrix.os }}
path: e2e/mermaid/${{ matrix.os }}
+3 -113
View File
@@ -7,116 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
## [Unreleased]
## [1.10.2] - 2026-01-21
### Fixed
- Fix panic when using `use_system_route_table` that was introduced in v1.10.1. (#1580)
### Changed
- Fix some typos in comments. (#1582)
- Dependency updates. (#1581)
## [1.10.1] - 2026-01-16
See the [v1.10.1](https://github.com/slackhq/nebula/milestone/26?closed=1) milestone for a complete list of changes.
### Fixed
- Fix a bug where an unsafe route derived from the system route table could be lost on a config reload. (#1573)
- Fix the PEM banner for ECDSA P256 public keys. (#1552)
- Fix a regression on Windows from 1.9.x where nebula could fall back to a less performant UDP listener if
non-critical ioctls failed. (#1568)
- Fix a bug in handshake processing when a peer sends an unexpected public key. (#1566)
### Added
- Add a config option to control accepting `recv_error` packets which defaults to `always`. (#1569)
### Changed
- Various dependency updates. (#1541, #1549, #1550, #1557, #1558, #1560, #1561, #1570, #1571)
## [1.10.0] - 2025-12-04
See the [v1.10.0](https://github.com/slackhq/nebula/milestone/16?closed=1) milestone for a complete list of changes.
### Added
- Support for ipv6 and multiple ipv4/6 addresses in the overlay.
A new v2 ASN.1 based certificate format.
Certificates now have a unified interface for external implementations.
(#1212, #1216, #1345, #1359, #1381, #1419, #1464, #1466, #1451, #1476, #1467, #1481, #1399, #1488, #1492, #1495, #1468, #1521, #1535, #1538)
- Add the ability to mark packets on linux to better target nebula packets in iptables/nftables. (#1331)
- Add ECMP support for `unsafe_routes`. (#1332)
- PKCS11 support for P256 keys when built with `pkcs11` tag (#1153, #1482)
### Changed
- **NOTE**: `default_local_cidr_any` now defaults to false, meaning that any firewall rule
- `default_local_cidr_any` now defaults to false, meaning that any firewall rule
intended to target an `unsafe_routes` entry must explicitly declare it via the
`local_cidr` field. This is almost always the intended behavior. This flag is
deprecated and will be removed in a future release. (#1373)
- Improve logging when a relay is in use on an inbound packet. (#1533)
- Avoid fatal errors if `rountines` is > 1 on systems that don't support more than 1 routine. (#1531)
- Log a warning if a firewall rule contains an `any` that negates a more restrictive filter. (#1513)
- Accept encrypted CA passphrase from an environment variable. (#1421)
- Allow handshaking with any trusted remote. (#1509)
- Log only the count of blocklisted certificate fingerprints instead of the entire list. (#1525)
- Don't fatal when the ssh server is unable to be configured successfully. (#1520)
- Update to build against go v1.25. (#1483)
- Allow projects using `nebula` as a library with userspace networking to configure the `logger` and build version. (#1239)
- Upgrade to `yaml.v3`. (#1148, #1371, #1438, #1478)
### Fixed
- Fix a potential bug with udp ipv4 only on darwin. (#1532)
- Improve lost packet statistics. (#1441, #1537)
- Honor `remote_allow_list` in hole punch response. (#1186)
- Fix a panic when `tun.use_system_route_table` is `true` and a route lacks a destination. (#1437)
- Fix an issue when `tun.use_system_route_table: true` could result in heavy CPU utilization when many thousands of routes
are present. (#1326)
- Fix tests for 32 bit machines. (#1394)
- Fix a possible 32bit integer underflow in config handling. (#1353)
- Fix moving a udp address from one vpn address to another in the `static_host_map`
which could cause rapid re-handshaking with an incorrect remote. (#1259)
- Improve smoke tests in environments where the docker network is not the default. (#1347)
## [1.9.7] - 2025-10-10
### Security
- Fix an issue where Nebula could incorrectly accept and process a packet from an erroneous source IP when the sender's
certificate is configured with unsafe_routes (cert v1/v2) or multiple IPs (cert v2). (#1494)
### Changed
- Disable sending `recv_error` messages when a packet is received outside the allowable counter window. (#1459)
- Improve error messages and remove some unnecessary fatal conditions in the Windows and generic udp listener. (#1453)
## [1.9.6] - 2025-7-15
### Added
- Support dropping inactive tunnels. This is disabled by default in this release but can be enabled with `tunnels.drop_inactive`. See example config for more details. (#1413)
### Fixed
- Fix Darwin freeze due to presence of some Network Extensions (#1426)
- Ensure the same relay tunnel is always used when multiple relay tunnels are present (#1422)
- Fix Windows freeze due to ICMP error handling (#1412)
- Fix relay migration panic (#1403)
## [1.9.5] - 2024-12-05
### Added
- Gracefully ignore v2 certificates. (#1282)
### Fixed
- Fix relays that refuse to re-establish after one of the remote tunnel pairs breaks. (#1277)
deprecated and will be removed in a future release.
## [1.9.4] - 2024-09-09
@@ -775,13 +671,7 @@ created.)
- Initial public release.
[Unreleased]: https://github.com/slackhq/nebula/compare/v1.10.2...HEAD
[1.10.2]: https://github.com/slackhq/nebula/releases/tag/v1.10.2
[1.10.1]: https://github.com/slackhq/nebula/releases/tag/v1.10.1
[1.10.0]: https://github.com/slackhq/nebula/releases/tag/v1.10.0
[1.9.7]: https://github.com/slackhq/nebula/releases/tag/v1.9.7
[1.9.6]: https://github.com/slackhq/nebula/releases/tag/v1.9.6
[1.9.5]: https://github.com/slackhq/nebula/releases/tag/v1.9.5
[Unreleased]: https://github.com/slackhq/nebula/compare/v1.9.4...HEAD
[1.9.4]: https://github.com/slackhq/nebula/releases/tag/v1.9.4
[1.9.3]: https://github.com/slackhq/nebula/releases/tag/v1.9.3
[1.9.2]: https://github.com/slackhq/nebula/releases/tag/v1.9.2
-1
View File
@@ -119,7 +119,6 @@ func (cc *CachedCertificate) String() string {
// Recombine will attempt to unmarshal a certificate received in a handshake.
// Handshakes save space by placing the peers public key in a different part of the packet, we have to
// reassemble the actual certificate structure with that in mind.
// Implementations MUST assert the public key is not in the raw certificate bytes if the passed in public key is not empty.
func Recombine(v Version, rawCertBytes, publicKey []byte, curve Curve) (Certificate, error) {
if publicKey == nil {
return nil, ErrNoPeerStaticKey
+4 -11
View File
@@ -426,7 +426,7 @@ func unmarshalCertificateV1(b []byte, publicKey []byte) (*certificateV1, error)
unsafeNetworks: make([]netip.Prefix, len(rc.Details.Subnets)/2),
notBefore: time.Unix(rc.Details.NotBefore, 0),
notAfter: time.Unix(rc.Details.NotAfter, 0),
publicKey: nil,
publicKey: make([]byte, len(rc.Details.PublicKey)),
isCA: rc.Details.IsCA,
curve: rc.Details.Curve,
},
@@ -437,19 +437,12 @@ func unmarshalCertificateV1(b []byte, publicKey []byte) (*certificateV1, error)
copy(nc.details.groups, rc.Details.Groups)
nc.details.issuer = hex.EncodeToString(rc.Details.Issuer)
// If a public key is passed in as an argument, the certificate pubkey must be empty
// and the passed-in pubkey copied into the cert.
if len(publicKey) > 0 {
if len(rc.Details.PublicKey) != 0 {
return nil, ErrCertPubkeyPresent
}
nc.details.publicKey = make([]byte, len(publicKey))
copy(nc.details.publicKey, publicKey)
} else {
nc.details.publicKey = make([]byte, len(rc.Details.PublicKey))
copy(nc.details.publicKey, rc.Details.PublicKey)
nc.details.publicKey = publicKey
}
copy(nc.details.publicKey, rc.Details.PublicKey)
var ip netip.Addr
for i, rawIp := range rc.Details.Ips {
if i%2 == 0 {
+1 -63
View File
@@ -62,62 +62,6 @@ func TestCertificateV1_Marshal(t *testing.T) {
assert.Equal(t, nc.Groups(), nc2.Groups())
}
func TestCertificateV1_Unmarshal(t *testing.T) {
t.Parallel()
before := time.Now().Add(time.Second * -60).Round(time.Second)
after := time.Now().Add(time.Second * 60).Round(time.Second)
pubKey := []byte("1234567890abcedfghij1234567890ab")
invalidPubkey := []byte("00000000000000000000000000000000")
nc := certificateV1{
details: detailsV1{
name: "testing",
networks: []netip.Prefix{
mustParsePrefixUnmapped("10.1.1.1/24"),
mustParsePrefixUnmapped("10.1.1.2/16"),
},
unsafeNetworks: []netip.Prefix{
mustParsePrefixUnmapped("9.1.1.2/24"),
mustParsePrefixUnmapped("9.1.1.3/16"),
},
groups: []string{"test-group1", "test-group2", "test-group3"},
notBefore: before,
notAfter: after,
publicKey: pubKey,
isCA: false,
issuer: "1234567890abcedfghij1234567890ab",
},
signature: []byte("1234567890abcedfghij1234567890ab"),
}
// This certificate has a pubkey included
certWithPubkey, err := nc.Marshal()
require.NoError(t, err)
// This certificate is missing the pubkey section
certWithoutPubkey, err := nc.MarshalForHandshakes()
require.NoError(t, err)
// Cert has no pubkey and no pubkey passed in must fail to validate
isNil, err := unmarshalCertificateV1(certWithoutPubkey, nil)
require.Error(t, err)
// Cert has different pubkey than one passed in must fail
isNil, err = unmarshalCertificateV1(certWithPubkey, invalidPubkey)
require.Nil(t, isNil)
require.Error(t, err)
// Cert has pubkey and no pubkey argument works ok
_, err = unmarshalCertificateV1(certWithPubkey, nil)
require.NoError(t, err)
// Cert has no pubkey and valid, correctly signed pubkey passed in
nc2, err := unmarshalCertificateV1(certWithoutPubkey, pubKey)
require.NoError(t, err)
assert.Equal(t, pubKey, nc2.PublicKey())
}
func TestCertificateV1_PublicKeyPem(t *testing.T) {
t.Parallel()
before := time.Now().Add(time.Second * -60).Round(time.Second)
@@ -155,19 +99,13 @@ func TestCertificateV1_PublicKeyPem(t *testing.T) {
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAA=
-----END NEBULA P256 PUBLIC KEY-----
`)
pubP256KeyPemCA := []byte(`-----BEGIN NEBULA ECDSA P256 PUBLIC KEY-----
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAA=
-----END NEBULA ECDSA P256 PUBLIC KEY-----
`)
pubP256Key, _, _, err := UnmarshalPublicKeyFromPEM(pubP256KeyPem)
require.NoError(t, err)
nc.details.curve = Curve_P256
nc.details.publicKey = pubP256Key
assert.Equal(t, Curve_P256, nc.Curve())
assert.Equal(t, string(nc.MarshalPublicKeyPEM()), string(pubP256KeyPemCA))
assert.Equal(t, string(nc.MarshalPublicKeyPEM()), string(pubP256KeyPem))
assert.True(t, nc.IsCA())
nc.details.isCA = false
+1 -7
View File
@@ -592,13 +592,7 @@ func unmarshalCertificateV2(b []byte, publicKey []byte, curve Curve) (*certifica
// Maybe grab the public key
var rawPublicKey cryptobyte.String
if len(publicKey) > 0 {
// If a public key is passed in, then the handshake certificate must
// not have a public key present
if input.PeekASN1Tag(TagCertPublicKey) {
return nil, ErrCertPubkeyPresent
}
rawPublicKey = make(cryptobyte.String, len(publicKey))
copy(rawPublicKey, publicKey)
rawPublicKey = publicKey
} else if !input.ReadOptionalASN1(&rawPublicKey, nil, TagCertPublicKey) {
return nil, ErrBadFormat
}
+1 -60
View File
@@ -76,58 +76,6 @@ func TestCertificateV2_Marshal(t *testing.T) {
assert.Equal(t, nc.Groups(), nc2.Groups())
}
func TestCertificateV2_Unmarshal(t *testing.T) {
t.Parallel()
before := time.Now().Add(time.Second * -60).Round(time.Second)
after := time.Now().Add(time.Second * 60).Round(time.Second)
pubKey := []byte("1234567890abcedfghij1234567890ab")
nc := certificateV2{
details: detailsV2{
name: "testing",
networks: []netip.Prefix{
mustParsePrefixUnmapped("10.1.1.2/16"),
mustParsePrefixUnmapped("10.1.1.1/24"),
},
unsafeNetworks: []netip.Prefix{
mustParsePrefixUnmapped("9.1.1.3/16"),
mustParsePrefixUnmapped("9.1.1.2/24"),
},
groups: []string{"test-group1", "test-group2", "test-group3"},
notBefore: before,
notAfter: after,
isCA: false,
issuer: "1234567890abcdef1234567890abcdef",
},
signature: []byte("1234567890abcdef1234567890abcdef"),
publicKey: pubKey,
}
db, err := nc.details.Marshal()
require.NoError(t, err)
nc.rawDetails = db
certWithPubkey, err := nc.Marshal()
require.NoError(t, err)
//t.Log("Cert size:", len(b))
certWithoutPubkey, err := nc.MarshalForHandshakes()
require.NoError(t, err)
// Cert must not have a pubkey if one is passed in as an argument
_, err = unmarshalCertificateV2(certWithPubkey, pubKey, Curve_CURVE25519)
require.ErrorIs(t, err, ErrCertPubkeyPresent)
// Certs must have pubkeys
_, err = unmarshalCertificateV2(certWithoutPubkey, nil, Curve_CURVE25519)
require.ErrorIs(t, err, ErrBadFormat)
// Ensure proper unmarshal if a pubkey is passed in
nc2, err := unmarshalCertificateV2(certWithoutPubkey, pubKey, Curve_CURVE25519)
require.NoError(t, err)
assert.Equal(t, nc.PublicKey(), nc2.PublicKey())
}
func TestCertificateV2_PublicKeyPem(t *testing.T) {
t.Parallel()
before := time.Now().Add(time.Second * -60).Round(time.Second)
@@ -166,19 +114,12 @@ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAA=
-----END NEBULA P256 PUBLIC KEY-----
`)
pubP256KeyPemCA := []byte(`-----BEGIN NEBULA ECDSA P256 PUBLIC KEY-----
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAA=
-----END NEBULA ECDSA P256 PUBLIC KEY-----
`)
pubP256Key, _, _, err := UnmarshalPublicKeyFromPEM(pubP256KeyPem)
require.NoError(t, err)
nc.curve = Curve_P256
nc.publicKey = pubP256Key
assert.Equal(t, Curve_P256, nc.Curve())
assert.Equal(t, string(nc.MarshalPublicKeyPEM()), string(pubP256KeyPemCA))
assert.Equal(t, string(nc.MarshalPublicKeyPEM()), string(pubP256KeyPem))
assert.True(t, nc.IsCA())
nc.details.isCA = false
+1 -1
View File
@@ -79,7 +79,7 @@ qrlJ69wer3ZUHFXA
assert.Nil(t, k)
assert.Equal(t, rest, invalidPem)
// Fail due to invalid PEM format, because
// Fail due to ivalid PEM format, because
// it's missing the requisite pre-encapsulation boundary.
curve, k, rest, err = DecryptAndUnmarshalSigningPrivateKey(passphrase, rest)
require.EqualError(t, err, "input did not contain a valid PEM encoded block")
-1
View File
@@ -21,7 +21,6 @@ var (
ErrPrivateKeyEncrypted = errors.New("private key must be decrypted")
ErrCaNotFound = errors.New("could not find ca for the certificate")
ErrUnknownVersion = errors.New("certificate version unrecognized")
ErrCertPubkeyPresent = errors.New("certificate has unexpected pubkey present")
ErrInvalidPEMBlock = errors.New("input did not contain a valid PEM encoded block")
ErrInvalidPEMCertificateBanner = errors.New("bytes did not contain a proper certificate banner")
+1 -1
View File
@@ -86,7 +86,7 @@ func MarshalSigningPublicKeyToPEM(curve Curve, b []byte) []byte {
case Curve_CURVE25519:
return pem.EncodeToMemory(&pem.Block{Type: Ed25519PublicKeyBanner, Bytes: b})
case Curve_P256:
return pem.EncodeToMemory(&pem.Block{Type: ECDSAP256PublicKeyBanner, Bytes: b})
return pem.EncodeToMemory(&pem.Block{Type: P256PublicKeyBanner, Bytes: b})
default:
return nil
}
+5 -5
View File
@@ -44,7 +44,7 @@ bzBEr00kERQxxTzTsH8cpYEgRoipvmExvg8WP8NdAJEYJosB
assert.Equal(t, rest, invalidPem)
require.EqualError(t, err, "bytes did not contain a proper certificate banner")
// Fail due to invalid PEM format, because
// Fail due to ivalid PEM format, because
// it's missing the requisite pre-encapsulation boundary.
cert, rest, err = UnmarshalCertificateFromPEM(rest)
assert.Nil(t, cert)
@@ -106,7 +106,7 @@ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
assert.Equal(t, rest, invalidPem)
require.EqualError(t, err, "bytes did not contain a proper Ed25519/ECDSA private key banner")
// Fail due to invalid PEM format, because
// Fail due to ivalid PEM format, because
// it's missing the requisite pre-encapsulation boundary.
k, rest, curve, err = UnmarshalSigningPrivateKeyFromPEM(rest)
assert.Nil(t, k)
@@ -168,7 +168,7 @@ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
assert.Equal(t, rest, invalidPem)
require.EqualError(t, err, "bytes did not contain a proper private key banner")
// Fail due to invalid PEM format, because
// Fail due to ivalid PEM format, because
// it's missing the requisite pre-encapsulation boundary.
k, rest, curve, err = UnmarshalPrivateKeyFromPEM(rest)
assert.Nil(t, k)
@@ -221,7 +221,7 @@ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
require.EqualError(t, err, "bytes did not contain a proper public key banner")
assert.Equal(t, rest, invalidPem)
// Fail due to invalid PEM format, because
// Fail due to ivalid PEM format, because
// it's missing the requisite pre-encapsulation boundary.
k, rest, curve, err = UnmarshalPublicKeyFromPEM(rest)
assert.Nil(t, k)
@@ -299,7 +299,7 @@ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
require.EqualError(t, err, "bytes did not contain a proper public key banner")
assert.Equal(t, rest, invalidPem)
// Fail due to invalid PEM format, because
// Fail due to ivalid PEM format, because
// it's missing the requisite pre-encapsulation boundary.
k, rest, curve, err = UnmarshalPublicKeyFromPEM(rest)
assert.Nil(t, k)
+1 -1
View File
@@ -200,7 +200,7 @@ func Test_ca(t *testing.T) {
assert.Empty(t, b)
assert.Len(t, lKey, 64)
// test when reading password results in an error
// test when reading passsword results in an error
os.Remove(keyF.Name())
os.Remove(crtF.Name())
ob.Reset()
-4
View File
@@ -1,4 +0,0 @@
package main
const NoSuchFileError = "no such file or directory"
const NoSuchDirError = "no such file or directory"
-4
View File
@@ -1,4 +0,0 @@
package main
const NoSuchFileError = "no such file or directory"
const NoSuchDirError = "no such file or directory"
+4 -5
View File
@@ -11,7 +11,6 @@ import (
"github.com/slackhq/nebula/cert"
"github.com/slackhq/nebula/config"
"github.com/slackhq/nebula/test"
"github.com/slackhq/nebula/test/device"
"github.com/slackhq/nebula/udp"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
@@ -53,7 +52,7 @@ func Test_NewConnectionManagerTest(t *testing.T) {
lh := newTestLighthouse()
ifce := &Interface{
hostMap: hostMap,
inside: &device.NoopTun{},
inside: &test.NoopTun{},
outside: &udp.NoopConn{},
firewall: &Firewall{},
lightHouse: lh,
@@ -136,7 +135,7 @@ func Test_NewConnectionManagerTest2(t *testing.T) {
lh := newTestLighthouse()
ifce := &Interface{
hostMap: hostMap,
inside: &device.NoopTun{},
inside: &test.NoopTun{},
outside: &udp.NoopConn{},
firewall: &Firewall{},
lightHouse: lh,
@@ -221,7 +220,7 @@ func Test_NewConnectionManager_DisconnectInactive(t *testing.T) {
lh := newTestLighthouse()
ifce := &Interface{
hostMap: hostMap,
inside: &device.NoopTun{},
inside: &test.NoopTun{},
outside: &udp.NoopConn{},
firewall: &Firewall{},
lightHouse: lh,
@@ -348,7 +347,7 @@ func Test_NewConnectionManagerTest_DisconnectInvalid(t *testing.T) {
lh := newTestLighthouse()
ifce := &Interface{
hostMap: hostMap,
inside: &device.NoopTun{},
inside: &test.NoopTun{},
outside: &udp.NoopConn{},
firewall: &Firewall{},
lightHouse: lh,
+8 -38
View File
@@ -25,12 +25,11 @@ import (
func BenchmarkHotPath(b *testing.B) {
ca, _, caKey, _ := cert_test.NewTestCaCert(cert.Version1, cert.Curve_CURVE25519, time.Now(), time.Now().Add(10*time.Minute), nil, nil, []string{})
myControl, myVpnIpNet, myUdpAddr, _ := newSimpleServer(cert.Version1, ca, caKey, "me", "10.128.0.1/24", nil)
myControl, myVpnIpNet, _, _ := newSimpleServer(cert.Version1, ca, caKey, "me", "10.128.0.1/24", nil)
theirControl, theirVpnIpNet, theirUdpAddr, _ := newSimpleServer(cert.Version1, ca, caKey, "them", "10.128.0.2/24", nil)
// Put their info in our lighthouse
myControl.InjectLightHouseAddr(theirVpnIpNet[0].Addr(), theirUdpAddr)
theirControl.InjectLightHouseAddr(myVpnIpNet[0].Addr(), myUdpAddr)
// Start the servers
myControl.Start()
@@ -39,9 +38,6 @@ func BenchmarkHotPath(b *testing.B) {
r := router.NewR(b, myControl, theirControl)
r.CancelFlowLogs()
assertTunnel(b, myVpnIpNet[0].Addr(), theirVpnIpNet[0].Addr(), myControl, theirControl, r)
b.ResetTimer()
for n := 0; n < b.N; n++ {
myControl.InjectTunUDPPacket(theirVpnIpNet[0].Addr(), 80, myVpnIpNet[0].Addr(), 80, []byte("Hi from me"))
_ = r.RouteForAllUntilTxTun(theirControl)
@@ -51,39 +47,6 @@ func BenchmarkHotPath(b *testing.B) {
theirControl.Stop()
}
func BenchmarkHotPathRelay(b *testing.B) {
ca, _, caKey, _ := cert_test.NewTestCaCert(cert.Version1, cert.Curve_CURVE25519, time.Now(), time.Now().Add(10*time.Minute), nil, nil, []string{})
myControl, myVpnIpNet, _, _ := newSimpleServer(cert.Version1, ca, caKey, "me ", "10.128.0.1/24", m{"relay": m{"use_relays": true}})
relayControl, relayVpnIpNet, relayUdpAddr, _ := newSimpleServer(cert.Version1, ca, caKey, "relay ", "10.128.0.128/24", m{"relay": m{"am_relay": true}})
theirControl, theirVpnIpNet, theirUdpAddr, _ := newSimpleServer(cert.Version1, ca, caKey, "them ", "10.128.0.2/24", m{"relay": m{"use_relays": true}})
// Teach my how to get to the relay and that their can be reached via the relay
myControl.InjectLightHouseAddr(relayVpnIpNet[0].Addr(), relayUdpAddr)
myControl.InjectRelays(theirVpnIpNet[0].Addr(), []netip.Addr{relayVpnIpNet[0].Addr()})
relayControl.InjectLightHouseAddr(theirVpnIpNet[0].Addr(), theirUdpAddr)
// Build a router so we don't have to reason who gets which packet
r := router.NewR(b, myControl, relayControl, theirControl)
r.CancelFlowLogs()
// Start the servers
myControl.Start()
relayControl.Start()
theirControl.Start()
assertTunnel(b, theirVpnIpNet[0].Addr(), myVpnIpNet[0].Addr(), theirControl, myControl, r)
b.ResetTimer()
for n := 0; n < b.N; n++ {
myControl.InjectTunUDPPacket(theirVpnIpNet[0].Addr(), 80, myVpnIpNet[0].Addr(), 80, []byte("Hi from me"))
_ = r.RouteForAllUntilTxTun(theirControl)
}
myControl.Stop()
theirControl.Stop()
relayControl.Stop()
}
func TestGoodHandshake(t *testing.T) {
ca, _, caKey, _ := cert_test.NewTestCaCert(cert.Version1, cert.Curve_CURVE25519, time.Now(), time.Now().Add(10*time.Minute), nil, nil, []string{})
myControl, myVpnIpNet, myUdpAddr, _ := newSimpleServer(cert.Version1, ca, caKey, "me", "10.128.0.1/24", nil)
@@ -1378,6 +1341,13 @@ func TestGoodHandshakeUnsafeDest(t *testing.T) {
"tun": m{
"unsafe_routes": []m{route},
},
"firewall": m{
"unsafe_outbound": []m{{
"port": "any",
"proto": "any",
"host": "any",
}},
},
}
myControl, myVpnIpNet, myUdpAddr, myConfig := newSimpleServer(cert.Version2, ca, caKey, "me", "10.128.0.1/24", myCfg)
t.Logf("my config %v", myConfig)
+9 -7
View File
@@ -85,8 +85,9 @@ func newSimpleServerWithUdpAndUnsafeNetworks(v cert.Version, caCrt cert.Certific
}}
var unsafeNetworks []netip.Prefix
var firewallUnsafeInbound []m
if sUnsafeNetworks != "" {
firewallInbound = []m{{
firewallUnsafeInbound = []m{{
"proto": "any",
"port": "any",
"host": "any",
@@ -122,7 +123,8 @@ func newSimpleServerWithUdpAndUnsafeNetworks(v cert.Version, caCrt cert.Certific
"port": "any",
"host": "any",
}},
"inbound": firewallInbound,
"inbound": firewallInbound,
"unsafe_inbound": firewallUnsafeInbound,
},
//"handshakes": m{
// "try_interval": "1s",
@@ -292,7 +294,7 @@ func deadline(t *testing.T, seconds time.Duration) doneCb {
}
}
func assertTunnel(t testing.TB, vpnIpA, vpnIpB netip.Addr, controlA, controlB *nebula.Control, r *router.R) {
func assertTunnel(t *testing.T, vpnIpA, vpnIpB netip.Addr, controlA, controlB *nebula.Control, r *router.R) {
// Send a packet from them to me
controlB.InjectTunUDPPacket(vpnIpA, 80, vpnIpB, 90, []byte("Hi from B"))
bPacket := r.RouteForAllUntilTxTun(controlA)
@@ -304,7 +306,7 @@ func assertTunnel(t testing.TB, vpnIpA, vpnIpB netip.Addr, controlA, controlB *n
assertUdpPacket(t, []byte("Hello from A"), aPacket, vpnIpA, vpnIpB, 90, 80)
}
func assertHostInfoPair(t testing.TB, addrA, addrB netip.AddrPort, vpnNetsA, vpnNetsB []netip.Prefix, controlA, controlB *nebula.Control) {
func assertHostInfoPair(t *testing.T, addrA, addrB netip.AddrPort, vpnNetsA, vpnNetsB []netip.Prefix, controlA, controlB *nebula.Control) {
// Get both host infos
//TODO: CERT-V2 we may want to loop over each vpnAddr and assert all the things
hBinA := controlA.GetHostInfoByVpnAddr(vpnNetsB[0].Addr(), false)
@@ -325,7 +327,7 @@ func assertHostInfoPair(t testing.TB, addrA, addrB netip.AddrPort, vpnNetsA, vpn
assert.Equal(t, hBinA.RemoteIndex, hAinB.LocalIndex, "Host B remote index does not match host A local index")
}
func assertUdpPacket(t testing.TB, expected, b []byte, fromIp, toIp netip.Addr, fromPort, toPort uint16) {
func assertUdpPacket(t *testing.T, expected, b []byte, fromIp, toIp netip.Addr, fromPort, toPort uint16) {
if toIp.Is6() {
assertUdpPacket6(t, expected, b, fromIp, toIp, fromPort, toPort)
} else {
@@ -333,7 +335,7 @@ func assertUdpPacket(t testing.TB, expected, b []byte, fromIp, toIp netip.Addr,
}
}
func assertUdpPacket6(t testing.TB, expected, b []byte, fromIp, toIp netip.Addr, fromPort, toPort uint16) {
func assertUdpPacket6(t *testing.T, expected, b []byte, fromIp, toIp netip.Addr, fromPort, toPort uint16) {
packet := gopacket.NewPacket(b, layers.LayerTypeIPv6, gopacket.Lazy)
v6 := packet.Layer(layers.LayerTypeIPv6).(*layers.IPv6)
assert.NotNil(t, v6, "No ipv6 data found")
@@ -352,7 +354,7 @@ func assertUdpPacket6(t testing.TB, expected, b []byte, fromIp, toIp netip.Addr,
assert.Equal(t, expected, data.Payload(), "Data was incorrect")
}
func assertUdpPacket4(t testing.TB, expected, b []byte, fromIp, toIp netip.Addr, fromPort, toPort uint16) {
func assertUdpPacket4(t *testing.T, expected, b []byte, fromIp, toIp netip.Addr, fromPort, toPort uint16) {
packet := gopacket.NewPacket(b, layers.LayerTypeIPv4, gopacket.Lazy)
v4 := packet.Layer(layers.LayerTypeIPv4).(*layers.IPv4)
assert.NotNil(t, v4, "No ipv4 data found")
-4
View File
@@ -144,10 +144,6 @@ listen:
# valid values: always, never, private
# This setting is reloadable.
#send_recv_error: always
# Similar to send_recv_error, this option lets you configure if you want to accept "recv_error" packets from remote hosts.
# valid values: always, never, private
# This setting is reloadable.
#accept_recv_error: always
# The so_sock option is a Linux-specific feature that allows all outgoing Nebula packets to be tagged with a specific identifier.
# This tagging enables IP rule-based filtering. For example, it supports 0.0.0.0/0 unsafe_routes,
# allowing for more precise routing decisions based on the packet tags. Default is 0 meaning no mark is set.
+108 -47
View File
@@ -23,16 +23,15 @@ import (
)
type FirewallInterface interface {
AddRule(incoming bool, proto uint8, startPort int32, endPort int32, groups []string, host string, cidr, localCidr string, caName string, caSha string) error
AddRule(unsafe, incoming bool, proto uint8, startPort int32, endPort int32, groups []string, host string, cidr, localCidr string, caName string, caSha string) error
}
type conn struct {
Expires time.Time // Time when this conntrack entry will expire
// record why the original connection passed the firewall, so we can re-validate
// after ruleset changes. Note, rulesVersion is a uint16 so that these two
// fields pack for free after the uint32 above
// record why the original connection passed the firewall, so we can re-validate after ruleset changes.
incoming bool
unsafe bool
rulesVersion uint16
}
@@ -40,8 +39,10 @@ type conn struct {
type Firewall struct {
Conntrack *FirewallConntrack
InRules *FirewallTable
OutRules *FirewallTable
InRules *FirewallTable
OutRules *FirewallTable
UnsafeInRules *FirewallTable
UnsafeOutRules *FirewallTable
InSendReject bool
OutSendReject bool
@@ -54,7 +55,7 @@ type Firewall struct {
// routableNetworks describes the vpn addresses as well as any unsafe networks issued to us in the certificate.
// The vpn addresses are a full bit match while the unsafe networks only match the prefix
routableNetworks *bart.Lite
routableNetworks *bart.Table[NetworkType]
// assignedNetworks is a list of vpn networks assigned to us in the certificate.
assignedNetworks []netip.Prefix
@@ -81,14 +82,8 @@ type FirewallConntrack struct {
Conns map[firewall.Packet]*conn
TimerWheel *TimerWheel[firewall.Packet]
// purgeCounter tracks lookups to trigger periodic purge instead of every lookup
purgeCounter uint32
}
// purgeInterval defines how many lookups between purge attempts
const conntrackPurgeInterval = 1024
// FirewallTable is the entry point for a rule, the evaluation order is:
// Proto AND port AND (CA SHA or CA name) AND local CIDR AND (group OR groups OR name OR remote CIDR)
type FirewallTable struct {
@@ -155,17 +150,16 @@ func NewFirewall(l *logrus.Logger, tcpTimeout, UDPTimeout, defaultTimeout time.D
tmax = defaultTimeout
}
routableNetworks := new(bart.Lite)
routableNetworks := new(bart.Table[NetworkType])
var assignedNetworks []netip.Prefix
for _, network := range c.Networks() {
nprefix := netip.PrefixFrom(network.Addr(), network.Addr().BitLen())
routableNetworks.Insert(nprefix)
routableNetworks.Insert(netip.PrefixFrom(network.Addr(), network.Addr().BitLen()), NetworkTypeVPN)
assignedNetworks = append(assignedNetworks, network)
}
hasUnsafeNetworks := false
for _, n := range c.UnsafeNetworks() {
routableNetworks.Insert(n)
routableNetworks.Insert(n, NetworkTypeUnsafe)
hasUnsafeNetworks = true
}
@@ -176,6 +170,8 @@ func NewFirewall(l *logrus.Logger, tcpTimeout, UDPTimeout, defaultTimeout time.D
},
InRules: newFirewallTable(),
OutRules: newFirewallTable(),
UnsafeInRules: newFirewallTable(),
UnsafeOutRules: newFirewallTable(),
TCPTimeout: tcpTimeout,
UDPTimeout: UDPTimeout,
DefaultTimeout: defaultTimeout,
@@ -218,6 +214,7 @@ func NewFirewallFromConfig(l *logrus.Logger, cs *CertState, c *config.C) (*Firew
fw.defaultLocalCIDRAny = c.GetBool("firewall.default_local_cidr_any", false)
//TODO: do we also need firewall.unsafe_inbound_action and firewall.unsafe_outbound_action?
inboundAction := c.GetString("firewall.inbound_action", "drop")
switch inboundAction {
case "reject":
@@ -240,12 +237,26 @@ func NewFirewallFromConfig(l *logrus.Logger, cs *CertState, c *config.C) (*Firew
fw.OutSendReject = false
}
err := AddFirewallRulesFromConfig(l, false, c, fw)
// outbound rules
err := AddFirewallRulesFromConfig(l, false, false, c, fw)
if err != nil {
return nil, err
}
err = AddFirewallRulesFromConfig(l, true, c, fw)
// unsafe outbound rules
err = AddFirewallRulesFromConfig(l, true, false, c, fw)
if err != nil {
return nil, err
}
// inbound rules
err = AddFirewallRulesFromConfig(l, false, true, c, fw)
if err != nil {
return nil, err
}
// unsafe inbound rules
err = AddFirewallRulesFromConfig(l, true, true, c, fw)
if err != nil {
return nil, err
}
@@ -254,11 +265,11 @@ func NewFirewallFromConfig(l *logrus.Logger, cs *CertState, c *config.C) (*Firew
}
// AddRule properly creates the in memory rule structure for a firewall table.
func (f *Firewall) AddRule(incoming bool, proto uint8, startPort int32, endPort int32, groups []string, host string, cidr, localCidr, caName string, caSha string) error {
func (f *Firewall) AddRule(unsafe, incoming bool, proto uint8, startPort int32, endPort int32, groups []string, host string, cidr, localCidr, caName string, caSha string) error {
// We need this rule string because we generate a hash. Removing this will break firewall reload.
ruleString := fmt.Sprintf(
"incoming: %v, proto: %v, startPort: %v, endPort: %v, groups: %v, host: %v, ip: %v, localIp: %v, caName: %v, caSha: %s",
incoming, proto, startPort, endPort, groups, host, cidr, localCidr, caName, caSha,
"unsafe: %v, incoming: %v, proto: %v, startPort: %v, endPort: %v, groups: %v, host: %v, ip: %v, localIp: %v, caName: %v, caSha: %s",
unsafe, incoming, proto, startPort, endPort, groups, host, cidr, localCidr, caName, caSha,
)
f.rules += ruleString + "\n"
@@ -266,8 +277,12 @@ func (f *Firewall) AddRule(incoming bool, proto uint8, startPort int32, endPort
if !incoming {
direction = "outgoing"
}
f.l.WithField("firewallRule", m{"direction": direction, "proto": proto, "startPort": startPort, "endPort": endPort, "groups": groups, "host": host, "cidr": cidr, "localCidr": localCidr, "caName": caName, "caSha": caSha}).
Info("Firewall rule added")
fields := m{"direction": direction, "proto": proto, "startPort": startPort, "endPort": endPort, "groups": groups, "host": host, "cidr": cidr, "localCidr": localCidr, "caName": caName, "caSha": caSha}
if unsafe {
fields["unsafe"] = true
}
f.l.WithField("firewallRule", fields).Info("Firewall rule added")
var (
ft *FirewallTable
@@ -275,9 +290,18 @@ func (f *Firewall) AddRule(incoming bool, proto uint8, startPort int32, endPort
)
if incoming {
ft = f.InRules
if unsafe {
ft = f.UnsafeInRules
} else {
ft = f.InRules
}
} else {
ft = f.OutRules
if unsafe {
ft = f.UnsafeOutRules
} else {
ft = f.OutRules
}
}
switch proto {
@@ -314,12 +338,21 @@ func (f *Firewall) GetRuleHashes() string {
return "SHA:" + f.GetRuleHash() + ",FNV:" + strconv.FormatUint(uint64(f.GetRuleHashFNV()), 10)
}
func AddFirewallRulesFromConfig(l *logrus.Logger, inbound bool, c *config.C, fw FirewallInterface) error {
func AddFirewallRulesFromConfig(l *logrus.Logger, unsafe, inbound bool, c *config.C, fw FirewallInterface) error {
var table string
if inbound {
table = "firewall.inbound"
if unsafe {
table = "firewall.unsafe_inbound"
} else {
table = "firewall.inbound"
}
} else {
table = "firewall.outbound"
if unsafe {
table = "firewall.unsafe_outbound"
} else {
table = "firewall.outbound"
}
}
r := c.Get(table)
@@ -392,7 +425,7 @@ func AddFirewallRulesFromConfig(l *logrus.Logger, inbound bool, c *config.C, fw
l.Warnf("%s rule #%v; %s", table, i, warning)
}
err = fw.AddRule(inbound, proto, startPort, endPort, r.Groups, r.Host, r.Cidr, r.LocalCidr, r.CAName, r.CASha)
err = fw.AddRule(unsafe, inbound, proto, startPort, endPort, r.Groups, r.Host, r.Cidr, r.LocalCidr, r.CAName, r.CASha)
if err != nil {
return fmt.Errorf("%s rule #%v; `%s`", table, i, err)
}
@@ -415,6 +448,9 @@ func (f *Firewall) Drop(fp firewall.Packet, incoming bool, h *HostInfo, caPool *
return nil
}
var remoteNetworkType NetworkType
var ok bool
// Make sure remote address matches nebula certificate, and determine how to treat it
if h.networks == nil {
// Simple case: Certificate has one address and no unsafe networks
@@ -422,13 +458,14 @@ func (f *Firewall) Drop(fp firewall.Packet, incoming bool, h *HostInfo, caPool *
f.metrics(incoming).droppedRemoteAddr.Inc(1)
return ErrInvalidRemoteIP
}
remoteNetworkType = NetworkTypeVPN
} else {
nwType, ok := h.networks.Lookup(fp.RemoteAddr)
remoteNetworkType, ok = h.networks.Lookup(fp.RemoteAddr)
if !ok {
f.metrics(incoming).droppedRemoteAddr.Inc(1)
return ErrInvalidRemoteIP
}
switch nwType {
switch remoteNetworkType {
case NetworkTypeVPN:
break // nothing special
case NetworkTypeVPNPeer:
@@ -443,14 +480,27 @@ func (f *Firewall) Drop(fp firewall.Packet, incoming bool, h *HostInfo, caPool *
}
// Make sure we are supposed to be handling this local ip address
if !f.routableNetworks.Contains(fp.LocalAddr) {
localNetworkType, ok := f.routableNetworks.Lookup(fp.LocalAddr)
if !ok {
f.metrics(incoming).droppedLocalAddr.Inc(1)
return ErrInvalidLocalIP
}
table := f.OutRules
useUnsafe := remoteNetworkType == NetworkTypeUnsafe || localNetworkType == NetworkTypeUnsafe
var table *FirewallTable
if incoming {
table = f.InRules
if useUnsafe {
table = f.UnsafeInRules
} else {
table = f.InRules
}
} else {
if useUnsafe {
table = f.UnsafeOutRules
} else {
table = f.OutRules
}
}
// We now know which firewall table to check against
@@ -460,12 +510,13 @@ func (f *Firewall) Drop(fp firewall.Packet, incoming bool, h *HostInfo, caPool *
}
// We always want to conntrack since it is a faster operation
f.addConn(fp, incoming)
f.addConn(fp, useUnsafe, incoming)
return nil
}
func (f *Firewall) metrics(incoming bool) firewallMetrics {
//TODO: need unsafe metrics too
if incoming {
return f.incomingMetrics
} else {
@@ -498,14 +549,10 @@ func (f *Firewall) inConns(fp firewall.Packet, h *HostInfo, caPool *cert.CAPool,
conntrack := f.Conntrack
conntrack.Lock()
// Periodic purge instead of every lookup (major CPU savings)
conntrack.purgeCounter++
if conntrack.purgeCounter >= conntrackPurgeInterval {
conntrack.purgeCounter = 0
ep, has := conntrack.TimerWheel.Purge()
if has {
f.evict(ep)
}
// Purge every time we test
ep, has := conntrack.TimerWheel.Purge()
if has {
f.evict(ep)
}
c, ok := conntrack.Conns[fp]
@@ -517,9 +564,19 @@ func (f *Firewall) inConns(fp firewall.Packet, h *HostInfo, caPool *cert.CAPool,
if c.rulesVersion != f.rulesVersion {
// This conntrack entry was for an older rule set, validate
// it still passes with the current rule set
table := f.OutRules
var table *FirewallTable
if c.incoming {
table = f.InRules
if c.unsafe {
table = f.UnsafeInRules
} else {
table = f.InRules
}
} else {
if c.unsafe {
table = f.UnsafeOutRules
} else {
table = f.OutRules
}
}
// We now know which firewall table to check against
@@ -528,6 +585,7 @@ func (f *Firewall) inConns(fp firewall.Packet, h *HostInfo, caPool *cert.CAPool,
h.logger(f.l).
WithField("fwPacket", fp).
WithField("incoming", c.incoming).
WithField("unsafe", c.unsafe).
WithField("rulesVersion", f.rulesVersion).
WithField("oldRulesVersion", c.rulesVersion).
Debugln("dropping old conntrack entry, does not match new ruleset")
@@ -541,6 +599,7 @@ func (f *Firewall) inConns(fp firewall.Packet, h *HostInfo, caPool *cert.CAPool,
h.logger(f.l).
WithField("fwPacket", fp).
WithField("incoming", c.incoming).
WithField("unsafe", c.unsafe).
WithField("rulesVersion", f.rulesVersion).
WithField("oldRulesVersion", c.rulesVersion).
Debugln("keeping old conntrack entry, does match new ruleset")
@@ -567,7 +626,7 @@ func (f *Firewall) inConns(fp firewall.Packet, h *HostInfo, caPool *cert.CAPool,
return true
}
func (f *Firewall) addConn(fp firewall.Packet, incoming bool) {
func (f *Firewall) addConn(fp firewall.Packet, unsafe, incoming bool) {
var timeout time.Duration
c := &conn{}
@@ -590,6 +649,7 @@ func (f *Firewall) addConn(fp firewall.Packet, incoming bool) {
// Record which rulesVersion allowed this connection, so we can retest after
// firewall reload
c.incoming = incoming
c.unsafe = unsafe
c.rulesVersion = f.rulesVersion
c.Expires = time.Now().Add(timeout)
conntrack.Conns[fp] = c
@@ -946,6 +1006,7 @@ func convertRule(l *logrus.Logger, p any, table string, i int) (rule, error) {
r.Code = toString("code", m)
r.Proto = toString("proto", m)
r.Host = toString("host", m)
//TODO: create an alias to remote_cidr and deprecate cidr?
r.Cidr = toString("cidr", m)
r.LocalCidr = toString("local_cidr", m)
r.CAName = toString("ca_name", m)
+68 -66
View File
@@ -73,65 +73,65 @@ func TestFirewall_AddRule(t *testing.T) {
ti6, err := netip.ParsePrefix("fd12::34/128")
require.NoError(t, err)
require.NoError(t, fw.AddRule(true, firewall.ProtoTCP, 1, 1, []string{}, "", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoTCP, 1, 1, []string{}, "", "", "", "", ""))
// An empty rule is any
assert.True(t, fw.InRules.TCP[1].Any.Any.Any)
assert.Empty(t, fw.InRules.TCP[1].Any.Groups)
assert.Empty(t, fw.InRules.TCP[1].Any.Hosts)
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(true, firewall.ProtoUDP, 1, 1, []string{"g1"}, "", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoUDP, 1, 1, []string{"g1"}, "", "", "", "", ""))
assert.Nil(t, fw.InRules.UDP[1].Any.Any)
assert.Contains(t, fw.InRules.UDP[1].Any.Groups[0].Groups, "g1")
assert.Empty(t, fw.InRules.UDP[1].Any.Hosts)
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(true, firewall.ProtoICMP, 1, 1, []string{}, "h1", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoICMP, 1, 1, []string{}, "h1", "", "", "", ""))
assert.Nil(t, fw.InRules.ICMP[1].Any.Any)
assert.Empty(t, fw.InRules.ICMP[1].Any.Groups)
assert.Contains(t, fw.InRules.ICMP[1].Any.Hosts, "h1")
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(false, firewall.ProtoAny, 1, 1, []string{}, "", ti.String(), "", "", ""))
require.NoError(t, fw.AddRule(false, false, firewall.ProtoAny, 1, 1, []string{}, "", ti.String(), "", "", ""))
assert.Nil(t, fw.OutRules.AnyProto[1].Any.Any)
_, ok := fw.OutRules.AnyProto[1].Any.CIDR.Get(ti)
assert.True(t, ok)
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(false, firewall.ProtoAny, 1, 1, []string{}, "", ti6.String(), "", "", ""))
require.NoError(t, fw.AddRule(false, false, firewall.ProtoAny, 1, 1, []string{}, "", ti6.String(), "", "", ""))
assert.Nil(t, fw.OutRules.AnyProto[1].Any.Any)
_, ok = fw.OutRules.AnyProto[1].Any.CIDR.Get(ti6)
assert.True(t, ok)
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(false, firewall.ProtoAny, 1, 1, []string{}, "", "", ti.String(), "", ""))
require.NoError(t, fw.AddRule(false, false, firewall.ProtoAny, 1, 1, []string{}, "", "", ti.String(), "", ""))
assert.NotNil(t, fw.OutRules.AnyProto[1].Any.Any)
ok = fw.OutRules.AnyProto[1].Any.Any.LocalCIDR.Get(ti)
assert.True(t, ok)
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(false, firewall.ProtoAny, 1, 1, []string{}, "", "", ti6.String(), "", ""))
require.NoError(t, fw.AddRule(false, false, firewall.ProtoAny, 1, 1, []string{}, "", "", ti6.String(), "", ""))
assert.NotNil(t, fw.OutRules.AnyProto[1].Any.Any)
ok = fw.OutRules.AnyProto[1].Any.Any.LocalCIDR.Get(ti6)
assert.True(t, ok)
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(true, firewall.ProtoUDP, 1, 1, []string{"g1"}, "", "", "", "ca-name", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoUDP, 1, 1, []string{"g1"}, "", "", "", "ca-name", ""))
assert.Contains(t, fw.InRules.UDP[1].CANames, "ca-name")
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(true, firewall.ProtoUDP, 1, 1, []string{"g1"}, "", "", "", "", "ca-sha"))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoUDP, 1, 1, []string{"g1"}, "", "", "", "", "ca-sha"))
assert.Contains(t, fw.InRules.UDP[1].CAShas, "ca-sha")
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(false, firewall.ProtoAny, 0, 0, []string{}, "any", "", "", "", ""))
require.NoError(t, fw.AddRule(false, false, firewall.ProtoAny, 0, 0, []string{}, "any", "", "", "", ""))
assert.True(t, fw.OutRules.AnyProto[0].Any.Any.Any)
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
anyIp, err := netip.ParsePrefix("0.0.0.0/0")
require.NoError(t, err)
require.NoError(t, fw.AddRule(false, firewall.ProtoAny, 0, 0, []string{}, "", anyIp.String(), "", "", ""))
require.NoError(t, fw.AddRule(false, false, firewall.ProtoAny, 0, 0, []string{}, "", anyIp.String(), "", "", ""))
assert.Nil(t, fw.OutRules.AnyProto[0].Any.Any)
table, ok := fw.OutRules.AnyProto[0].Any.CIDR.Lookup(netip.MustParseAddr("1.1.1.1"))
assert.True(t, table.Any)
@@ -142,7 +142,7 @@ func TestFirewall_AddRule(t *testing.T) {
anyIp6, err := netip.ParsePrefix("::/0")
require.NoError(t, err)
require.NoError(t, fw.AddRule(false, firewall.ProtoAny, 0, 0, []string{}, "", anyIp6.String(), "", "", ""))
require.NoError(t, fw.AddRule(false, false, firewall.ProtoAny, 0, 0, []string{}, "", anyIp6.String(), "", "", ""))
assert.Nil(t, fw.OutRules.AnyProto[0].Any.Any)
table, ok = fw.OutRules.AnyProto[0].Any.CIDR.Lookup(netip.MustParseAddr("9::9"))
assert.True(t, table.Any)
@@ -150,29 +150,29 @@ func TestFirewall_AddRule(t *testing.T) {
assert.False(t, ok)
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(false, firewall.ProtoAny, 0, 0, []string{}, "", "any", "", "", ""))
require.NoError(t, fw.AddRule(false, false, firewall.ProtoAny, 0, 0, []string{}, "", "any", "", "", ""))
assert.True(t, fw.OutRules.AnyProto[0].Any.Any.Any)
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(false, firewall.ProtoAny, 0, 0, []string{}, "", "", anyIp.String(), "", ""))
require.NoError(t, fw.AddRule(false, false, firewall.ProtoAny, 0, 0, []string{}, "", "", anyIp.String(), "", ""))
assert.False(t, fw.OutRules.AnyProto[0].Any.Any.Any)
assert.True(t, fw.OutRules.AnyProto[0].Any.Any.LocalCIDR.Lookup(netip.MustParseAddr("1.1.1.1")))
assert.False(t, fw.OutRules.AnyProto[0].Any.Any.LocalCIDR.Lookup(netip.MustParseAddr("9::9")))
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(false, firewall.ProtoAny, 0, 0, []string{}, "", "", anyIp6.String(), "", ""))
require.NoError(t, fw.AddRule(false, false, firewall.ProtoAny, 0, 0, []string{}, "", "", anyIp6.String(), "", ""))
assert.False(t, fw.OutRules.AnyProto[0].Any.Any.Any)
assert.True(t, fw.OutRules.AnyProto[0].Any.Any.LocalCIDR.Lookup(netip.MustParseAddr("9::9")))
assert.False(t, fw.OutRules.AnyProto[0].Any.Any.LocalCIDR.Lookup(netip.MustParseAddr("1.1.1.1")))
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.NoError(t, fw.AddRule(false, firewall.ProtoAny, 0, 0, []string{}, "", "", "any", "", ""))
require.NoError(t, fw.AddRule(false, false, firewall.ProtoAny, 0, 0, []string{}, "", "", "any", "", ""))
assert.True(t, fw.OutRules.AnyProto[0].Any.Any.Any)
// Test error conditions
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c)
require.Error(t, fw.AddRule(true, math.MaxUint8, 0, 0, []string{}, "", "", "", "", ""))
require.Error(t, fw.AddRule(true, firewall.ProtoAny, 10, 0, []string{}, "", "", "", "", ""))
require.Error(t, fw.AddRule(false, true, math.MaxUint8, 0, 0, []string{}, "", "", "", "", ""))
require.Error(t, fw.AddRule(false, true, firewall.ProtoAny, 10, 0, []string{}, "", "", "", "", ""))
}
func TestFirewall_Drop(t *testing.T) {
@@ -208,7 +208,7 @@ func TestFirewall_Drop(t *testing.T) {
h.buildNetworks(myVpnNetworksTable, &c)
fw := NewFirewall(l, time.Second, time.Minute, time.Hour, &c)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"any"}, "", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"any"}, "", "", "", "", ""))
cp := cert.NewCAPool()
// Drop outbound
@@ -227,28 +227,28 @@ func TestFirewall_Drop(t *testing.T) {
// ensure signer doesn't get in the way of group checks
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, &c)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "", "signer-shasum"))
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "", "signer-shasum-bad"))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "", "signer-shasum"))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "", "signer-shasum-bad"))
assert.Equal(t, fw.Drop(p, true, &h, cp, nil), ErrNoMatchingRule)
// test caSha doesn't drop on match
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, &c)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "", "signer-shasum-bad"))
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "", "signer-shasum"))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "", "signer-shasum-bad"))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "", "signer-shasum"))
require.NoError(t, fw.Drop(p, true, &h, cp, nil))
// ensure ca name doesn't get in the way of group checks
cp.CAs["signer-shasum"] = &cert.CachedCertificate{Certificate: &dummyCert{name: "ca-good"}}
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, &c)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "ca-good", ""))
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "ca-good-bad", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "ca-good", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "ca-good-bad", ""))
assert.Equal(t, fw.Drop(p, true, &h, cp, nil), ErrNoMatchingRule)
// test caName doesn't drop on match
cp.CAs["signer-shasum"] = &cert.CachedCertificate{Certificate: &dummyCert{name: "ca-good"}}
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, &c)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "ca-good-bad", ""))
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "ca-good", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "ca-good-bad", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "ca-good", ""))
require.NoError(t, fw.Drop(p, true, &h, cp, nil))
}
@@ -287,7 +287,7 @@ func TestFirewall_DropV6(t *testing.T) {
h.buildNetworks(myVpnNetworksTable, &c)
fw := NewFirewall(l, time.Second, time.Minute, time.Hour, &c)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"any"}, "", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"any"}, "", "", "", "", ""))
cp := cert.NewCAPool()
// Drop outbound
@@ -306,28 +306,28 @@ func TestFirewall_DropV6(t *testing.T) {
// ensure signer doesn't get in the way of group checks
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, &c)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "", "signer-shasum"))
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "", "signer-shasum-bad"))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "", "signer-shasum"))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "", "signer-shasum-bad"))
assert.Equal(t, fw.Drop(p, true, &h, cp, nil), ErrNoMatchingRule)
// test caSha doesn't drop on match
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, &c)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "", "signer-shasum-bad"))
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "", "signer-shasum"))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "", "signer-shasum-bad"))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "", "signer-shasum"))
require.NoError(t, fw.Drop(p, true, &h, cp, nil))
// ensure ca name doesn't get in the way of group checks
cp.CAs["signer-shasum"] = &cert.CachedCertificate{Certificate: &dummyCert{name: "ca-good"}}
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, &c)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "ca-good", ""))
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "ca-good-bad", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "ca-good", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "ca-good-bad", ""))
assert.Equal(t, fw.Drop(p, true, &h, cp, nil), ErrNoMatchingRule)
// test caName doesn't drop on match
cp.CAs["signer-shasum"] = &cert.CachedCertificate{Certificate: &dummyCert{name: "ca-good"}}
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, &c)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "ca-good-bad", ""))
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "ca-good", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"nope"}, "", "", "", "ca-good-bad", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"default-group"}, "", "", "", "ca-good", ""))
require.NoError(t, fw.Drop(p, true, &h, cp, nil))
}
@@ -532,7 +532,7 @@ func TestFirewall_Drop2(t *testing.T) {
h1.buildNetworks(myVpnNetworksTable, c1.Certificate)
fw := NewFirewall(l, time.Second, time.Minute, time.Hour, c.Certificate)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"default-group", "test-group"}, "", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"default-group", "test-group"}, "", "", "", "", ""))
cp := cert.NewCAPool()
// h1/c1 lacks the proper groups
@@ -612,8 +612,8 @@ func TestFirewall_Drop3(t *testing.T) {
h3.buildNetworks(myVpnNetworksTable, c3.Certificate)
fw := NewFirewall(l, time.Second, time.Minute, time.Hour, c.Certificate)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 1, 1, []string{}, "host1", "", "", "", ""))
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 1, 1, []string{}, "", "", "", "", "signer-sha"))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 1, 1, []string{}, "host1", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 1, 1, []string{}, "", "", "", "", "signer-sha"))
cp := cert.NewCAPool()
// c1 should pass because host match
@@ -627,7 +627,7 @@ func TestFirewall_Drop3(t *testing.T) {
// Test a remote address match
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c.Certificate)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 1, 1, []string{}, "", "1.2.3.4/24", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 1, 1, []string{}, "", "1.2.3.4/24", "", "", ""))
require.NoError(t, fw.Drop(p, true, &h1, cp, nil))
}
@@ -665,7 +665,7 @@ func TestFirewall_Drop3V6(t *testing.T) {
// Test a remote address match
fw := NewFirewall(l, time.Second, time.Minute, time.Hour, c.Certificate)
cp := cert.NewCAPool()
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 1, 1, []string{}, "", "fd12::34/120", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 1, 1, []string{}, "", "fd12::34/120", "", "", ""))
require.NoError(t, fw.Drop(p, true, &h, cp, nil))
}
@@ -704,7 +704,7 @@ func TestFirewall_DropConntrackReload(t *testing.T) {
h.buildNetworks(myVpnNetworksTable, c.Certificate)
fw := NewFirewall(l, time.Second, time.Minute, time.Hour, c.Certificate)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"any"}, "", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"any"}, "", "", "", "", ""))
cp := cert.NewCAPool()
// Drop outbound
@@ -717,7 +717,7 @@ func TestFirewall_DropConntrackReload(t *testing.T) {
oldFw := fw
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c.Certificate)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 10, 10, []string{"any"}, "", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 10, 10, []string{"any"}, "", "", "", "", ""))
fw.Conntrack = oldFw.Conntrack
fw.rulesVersion = oldFw.rulesVersion + 1
@@ -726,7 +726,7 @@ func TestFirewall_DropConntrackReload(t *testing.T) {
oldFw = fw
fw = NewFirewall(l, time.Second, time.Minute, time.Hour, c.Certificate)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 11, 11, []string{"any"}, "", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 11, 11, []string{"any"}, "", "", "", "", ""))
fw.Conntrack = oldFw.Conntrack
fw.rulesVersion = oldFw.rulesVersion + 1
@@ -765,7 +765,7 @@ func TestFirewall_DropIPSpoofing(t *testing.T) {
fw := NewFirewall(l, time.Second, time.Minute, time.Hour, c.Certificate)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 1, 1, []string{}, "", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 1, 1, []string{}, "", "", "", "", ""))
cp := cert.NewCAPool()
// Packet spoofed by `c1`. Note that the remote addr is not a valid one.
@@ -958,28 +958,28 @@ func TestAddFirewallRulesFromConfig(t *testing.T) {
conf := config.NewC(l)
mf := &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"outbound": []any{map[string]any{"port": "1", "proto": "tcp", "host": "a"}}}
require.NoError(t, AddFirewallRulesFromConfig(l, false, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, false, conf, mf))
assert.Equal(t, addRuleCall{incoming: false, proto: firewall.ProtoTCP, startPort: 1, endPort: 1, groups: nil, host: "a", ip: "", localIp: ""}, mf.lastCall)
// Test adding udp rule
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"outbound": []any{map[string]any{"port": "1", "proto": "udp", "host": "a"}}}
require.NoError(t, AddFirewallRulesFromConfig(l, false, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, false, conf, mf))
assert.Equal(t, addRuleCall{incoming: false, proto: firewall.ProtoUDP, startPort: 1, endPort: 1, groups: nil, host: "a", ip: "", localIp: ""}, mf.lastCall)
// Test adding icmp rule
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"outbound": []any{map[string]any{"port": "1", "proto": "icmp", "host": "a"}}}
require.NoError(t, AddFirewallRulesFromConfig(l, false, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, false, conf, mf))
assert.Equal(t, addRuleCall{incoming: false, proto: firewall.ProtoICMP, startPort: 1, endPort: 1, groups: nil, host: "a", ip: "", localIp: ""}, mf.lastCall)
// Test adding any rule
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "host": "a"}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: nil, host: "a", ip: "", localIp: ""}, mf.lastCall)
// Test adding rule with cidr
@@ -987,14 +987,14 @@ func TestAddFirewallRulesFromConfig(t *testing.T) {
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "cidr": cidr.String()}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: nil, ip: cidr.String(), localIp: ""}, mf.lastCall)
// Test adding rule with local_cidr
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "local_cidr": cidr.String()}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: nil, ip: "", localIp: cidr.String()}, mf.lastCall)
// Test adding rule with cidr ipv6
@@ -1002,75 +1002,75 @@ func TestAddFirewallRulesFromConfig(t *testing.T) {
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "cidr": cidr6.String()}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: nil, ip: cidr6.String(), localIp: ""}, mf.lastCall)
// Test adding rule with any cidr
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "cidr": "any"}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: nil, ip: "any", localIp: ""}, mf.lastCall)
// Test adding rule with junk cidr
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "cidr": "junk/junk"}}}
require.EqualError(t, AddFirewallRulesFromConfig(l, true, conf, mf), "firewall.inbound rule #0; cidr did not parse; netip.ParsePrefix(\"junk/junk\"): ParseAddr(\"junk\"): unable to parse IP")
require.EqualError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf), "firewall.inbound rule #0; cidr did not parse; netip.ParsePrefix(\"junk/junk\"): ParseAddr(\"junk\"): unable to parse IP")
// Test adding rule with local_cidr ipv6
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "local_cidr": cidr6.String()}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: nil, ip: "", localIp: cidr6.String()}, mf.lastCall)
// Test adding rule with any local_cidr
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "local_cidr": "any"}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: nil, localIp: "any"}, mf.lastCall)
// Test adding rule with junk local_cidr
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "local_cidr": "junk/junk"}}}
require.EqualError(t, AddFirewallRulesFromConfig(l, true, conf, mf), "firewall.inbound rule #0; local_cidr did not parse; netip.ParsePrefix(\"junk/junk\"): ParseAddr(\"junk\"): unable to parse IP")
require.EqualError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf), "firewall.inbound rule #0; local_cidr did not parse; netip.ParsePrefix(\"junk/junk\"): ParseAddr(\"junk\"): unable to parse IP")
// Test adding rule with ca_sha
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "ca_sha": "12312313123"}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: nil, ip: "", localIp: "", caSha: "12312313123"}, mf.lastCall)
// Test adding rule with ca_name
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "ca_name": "root01"}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: nil, ip: "", localIp: "", caName: "root01"}, mf.lastCall)
// Test single group
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "group": "a"}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: []string{"a"}, ip: "", localIp: ""}, mf.lastCall)
// Test single groups
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "groups": "a"}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: []string{"a"}, ip: "", localIp: ""}, mf.lastCall)
// Test multiple AND groups
conf = config.NewC(l)
mf = &mockFirewall{}
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "groups": []string{"a", "b"}}}}
require.NoError(t, AddFirewallRulesFromConfig(l, true, conf, mf))
require.NoError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf))
assert.Equal(t, addRuleCall{incoming: true, proto: firewall.ProtoAny, startPort: 1, endPort: 1, groups: []string{"a", "b"}, ip: "", localIp: ""}, mf.lastCall)
// Test Add error
@@ -1078,7 +1078,7 @@ func TestAddFirewallRulesFromConfig(t *testing.T) {
mf = &mockFirewall{}
mf.nextCallReturn = errors.New("test error")
conf.Settings["firewall"] = map[string]any{"inbound": []any{map[string]any{"port": "1", "proto": "any", "host": "a"}}}
require.EqualError(t, AddFirewallRulesFromConfig(l, true, conf, mf), "firewall.inbound rule #0; `test error`")
require.EqualError(t, AddFirewallRulesFromConfig(l, false, true, conf, mf), "firewall.inbound rule #0; `test error`")
}
func TestFirewall_convertRule(t *testing.T) {
@@ -1251,7 +1251,7 @@ func newSetupFromCert(t *testing.T, l *logrus.Logger, c dummyCert) testsetup {
myVpnNetworksTable.Insert(prefix)
}
fw := NewFirewall(l, time.Second, time.Minute, time.Hour, &c)
require.NoError(t, fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"any"}, "", "", "", "", ""))
require.NoError(t, fw.AddRule(false, true, firewall.ProtoAny, 0, 0, []string{"any"}, "", "", "", "", ""))
return testsetup{
c: c,
@@ -1332,13 +1332,14 @@ func TestFirewall_Drop_EnforceIPMatch(t *testing.T) {
tc.p.LocalAddr = netip.MustParseAddr("192.168.0.3")
tc.err = ErrNoMatchingRule
tc.Test(t, unsafeSetup.fw) //should hit firewall and bounce off
require.NoError(t, unsafeSetup.fw.AddRule(true, firewall.ProtoAny, 0, 0, []string{"any"}, "", "", unsafePrefix.String(), "", ""))
require.NoError(t, unsafeSetup.fw.AddRule(true, true, firewall.ProtoAny, 0, 0, []string{"any"}, "", "", unsafePrefix.String(), "", ""))
tc.err = nil
tc.Test(t, unsafeSetup.fw) //should pass
})
}
type addRuleCall struct {
unsafe bool
incoming bool
proto uint8
startPort int32
@@ -1356,8 +1357,9 @@ type mockFirewall struct {
nextCallReturn error
}
func (mf *mockFirewall) AddRule(incoming bool, proto uint8, startPort int32, endPort int32, groups []string, host string, ip, localIp, caName string, caSha string) error {
func (mf *mockFirewall) AddRule(unsafe, incoming bool, proto uint8, startPort int32, endPort int32, groups []string, host string, ip, localIp, caName string, caSha string) error {
mf.lastCall = addRuleCall{
unsafe: unsafe,
incoming: incoming,
proto: proto,
startPort: startPort,
+13 -13
View File
@@ -12,29 +12,29 @@ require (
github.com/gogo/protobuf v1.3.2
github.com/google/gopacket v1.1.19
github.com/kardianos/service v1.2.4
github.com/miekg/dns v1.1.70
github.com/miekg/dns v1.1.68
github.com/miekg/pkcs11 v1.1.2-0.20231115102856-9078ad6b9d4b
github.com/nbrownus/go-metrics-prometheus v0.0.0-20210712211119-974a6260965f
github.com/prometheus/client_golang v1.23.2
github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475
github.com/sirupsen/logrus v1.9.4
github.com/sirupsen/logrus v1.9.3
github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
github.com/stefanberger/go-pkcs11uri v0.0.0-20230803200340-78284954bff6
github.com/stretchr/testify v1.11.1
github.com/vishvananda/netlink v1.3.1
go.yaml.in/yaml/v3 v3.0.4
golang.org/x/crypto v0.47.0
golang.org/x/crypto v0.45.0
golang.org/x/exp v0.0.0-20230725093048-515e97ebf090
golang.org/x/net v0.49.0
golang.org/x/sync v0.19.0
golang.org/x/sys v0.40.0
golang.org/x/term v0.39.0
golang.org/x/net v0.47.0
golang.org/x/sync v0.18.0
golang.org/x/sys v0.38.0
golang.org/x/term v0.37.0
golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2
golang.zx2c4.com/wireguard v0.0.0-20250521234502-f333402bd9cb
golang.zx2c4.com/wireguard v0.0.0-20230325221338-052af4a8072b
golang.zx2c4.com/wireguard/windows v0.5.3
google.golang.org/protobuf v1.36.11
google.golang.org/protobuf v1.36.10
gopkg.in/yaml.v3 v3.0.1
gvisor.dev/gvisor v0.0.0-20250503011706-39ed1f5ac29c
gvisor.dev/gvisor v0.0.0-20240423190808-9d7a357edefe
)
require (
@@ -49,7 +49,7 @@ require (
github.com/prometheus/procfs v0.16.1 // indirect
github.com/vishvananda/netns v0.0.5 // indirect
go.yaml.in/yaml/v2 v2.4.2 // indirect
golang.org/x/mod v0.31.0 // indirect
golang.org/x/time v0.7.0 // indirect
golang.org/x/tools v0.40.0 // indirect
golang.org/x/mod v0.24.0 // indirect
golang.org/x/time v0.5.0 // indirect
golang.org/x/tools v0.33.0 // indirect
)
+27 -26
View File
@@ -83,8 +83,8 @@ github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/miekg/dns v1.1.70 h1:DZ4u2AV35VJxdD9Fo9fIWm119BsQL5cZU1cQ9s0LkqA=
github.com/miekg/dns v1.1.70/go.mod h1:+EuEPhdHOsfk6Wk5TT2CzssZdqkmFhf8r+aVyDEToIs=
github.com/miekg/dns v1.1.68 h1:jsSRkNozw7G/mnmXULynzMNIsgY2dHC8LO6U6Ij2JEA=
github.com/miekg/dns v1.1.68/go.mod h1:fujopn7TB3Pu3JM69XaawiU0wqjpL9/8xGop5UrTPps=
github.com/miekg/pkcs11 v1.1.2-0.20231115102856-9078ad6b9d4b h1:J/AzCvg5z0Hn1rqZUJjpbzALUmkKX0Zwbc/i4fw7Sfk=
github.com/miekg/pkcs11 v1.1.2-0.20231115102856-9078ad6b9d4b/go.mod h1:XsNlhZGX73bx86s2hdc/FuaLm2CPZJemRLMA+WTFxgs=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
@@ -131,8 +131,8 @@ github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncj
github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
github.com/sirupsen/logrus v1.9.4 h1:TsZE7l11zFCLZnZ+teH4Umoq5BhEIfIzfRDZ1Uzql2w=
github.com/sirupsen/logrus v1.9.4/go.mod h1:ftWc9WdOfJ0a92nsE2jF5u5ZwH8Bv2zdeOC42RjbV2g=
github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e h1:MRM5ITcdelLK2j1vwZ3Je0FKVCfqOLp5zO6trqMLYs0=
github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e/go.mod h1:XV66xRDqSt+GTGFMVlhk3ULuV0y9ZmzeVGR4mloJI3M=
github.com/stefanberger/go-pkcs11uri v0.0.0-20230803200340-78284954bff6 h1:pnnLyeX7o/5aX8qUQ69P/mLojDqwda8hFOCBTmP/6hw=
@@ -162,16 +162,16 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
golang.org/x/crypto v0.45.0 h1:jMBrvKuj23MTlT0bQEOBcAE0mjg8mK9RXFhRH6nyF3Q=
golang.org/x/crypto v0.45.0/go.mod h1:XTGrrkGJve7CYK7J8PEww4aY7gM3qMCElcJQ8n8JdX4=
golang.org/x/exp v0.0.0-20230725093048-515e97ebf090 h1:Di6/M8l0O2lCLc6VVRWhgCiApHV8MnQurBnFSHsQtNY=
golang.org/x/exp v0.0.0-20230725093048-515e97ebf090/go.mod h1:FXUEEKJgO7OQYeo8N01OfiKP8RXMtf6e8aTskBGqWdc=
golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.31.0 h1:HaW9xtz0+kOcWKwli0ZXy79Ix+UW/vOfmWI5QVd2tgI=
golang.org/x/mod v0.31.0/go.mod h1:43JraMp9cGx1Rx3AqioxrbrhNsLl2l/iNAvuBkrezpg=
golang.org/x/mod v0.24.0 h1:ZfthKaKaT4NrhGVZHO1/WDTwGES4De8KtWO0SIbNJMU=
golang.org/x/mod v0.24.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -182,8 +182,8 @@ golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLL
golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -191,8 +191,8 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
golang.org/x/sync v0.18.0 h1:kr88TuHDroi+UVf+0hZnirlk8o8T+4MrK6mr60WkH/I=
golang.org/x/sync v0.18.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -206,33 +206,34 @@ golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.39.0 h1:RclSuaJf32jOqZz74CkPA9qFuVTX7vhLlpfj/IGWlqY=
golang.org/x/term v0.39.0/go.mod h1:yxzUCTP/U+FzoxfdKmLaA0RV1WgE0VY7hXBwKtY/4ww=
golang.org/x/term v0.37.0 h1:8EGAD0qCmHYZg6J17DvsMy9/wJ7/D/4pV/wfnld5lTU=
golang.org/x/term v0.37.0/go.mod h1:5pB4lxRNYYVZuTLmy8oR2BH8dflOR+IbTYFD8fi3254=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/time v0.7.0 h1:ntUhktv3OPE6TgYxXWv9vKvUSJyIFJlyohwbkEwPrKQ=
golang.org/x/time v0.7.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.40.0 h1:yLkxfA+Qnul4cs9QA3KnlFu0lVmd8JJfoq+E41uSutA=
golang.org/x/tools v0.40.0/go.mod h1:Ik/tzLRlbscWpqqMRjyWYDisX8bG13FrdXp3o4Sr9lc=
golang.org/x/tools v0.33.0 h1:4qz2S3zmRxbGIhDIAgjxvFutSvH5EfnsYrRBj0UI0bc=
golang.org/x/tools v0.33.0/go.mod h1:CIJMaWEY88juyUfo7UbgPqbC8rU2OqfAV1h2Qp0oMYI=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 h1:B82qJJgjvYKsXS9jeunTOisW56dUokqW/FOteYJJ/yg=
golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
golang.zx2c4.com/wireguard v0.0.0-20250521234502-f333402bd9cb h1:whnFRlWMcXI9d+ZbWg+4sHnLp52d5yiIPUxMBSt4X9A=
golang.zx2c4.com/wireguard v0.0.0-20250521234502-f333402bd9cb/go.mod h1:rpwXGsirqLqN2L0JDJQlwOboGHmptD5ZD6T2VmcqhTw=
golang.zx2c4.com/wireguard v0.0.0-20230325221338-052af4a8072b h1:J1CaxgLerRR5lgx3wnr6L04cJFbWoceSK9JWBdglINo=
golang.zx2c4.com/wireguard v0.0.0-20230325221338-052af4a8072b/go.mod h1:tqur9LnfstdR9ep2LaJT4lFUl0EjlHtge+gAjmsHUG4=
golang.zx2c4.com/wireguard/windows v0.5.3 h1:On6j2Rpn3OEMXqBq00QEDC7bWSZrPIHKIus8eIuExIE=
golang.zx2c4.com/wireguard/windows v0.5.3/go.mod h1:9TEe8TJmtwyQebdFwAkEWOPr3prrtqm+REGFifP60hI=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -243,8 +244,8 @@ google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miE
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
google.golang.org/protobuf v1.36.10 h1:AYd7cD/uASjIL6Q9LiTjz8JLcrh/88q5UObnmY3aOOE=
google.golang.org/protobuf v1.36.10/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -258,5 +259,5 @@ gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gvisor.dev/gvisor v0.0.0-20250503011706-39ed1f5ac29c h1:m/r7OM+Y2Ty1sgBQ7Qb27VgIMBW8ZZhT4gLnUyDIhzI=
gvisor.dev/gvisor v0.0.0-20250503011706-39ed1f5ac29c/go.mod h1:3r5CMtNQMKIvBlrmM9xWUNamjKBYPOWyXOjmg5Kts3g=
gvisor.dev/gvisor v0.0.0-20240423190808-9d7a357edefe h1:fre4i6mv4iBuz5lCMOzHD1rH1ljqHWSICFmZRbbgp3g=
gvisor.dev/gvisor v0.0.0-20240423190808-9d7a357edefe/go.mod h1:sxc3Uvk/vHcd3tj7/DHVBoR5wvWT/MmRq2pj7HRJnwU=
+65 -74
View File
@@ -1,7 +1,6 @@
package nebula
import (
"bytes"
"net/netip"
"time"
@@ -100,11 +99,11 @@ func ixHandshakeStage0(f *Interface, hh *HandshakeHostInfo) bool {
return true
}
func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H) {
func ixHandshakeStage1(f *Interface, addr netip.AddrPort, via *ViaSender, packet []byte, h *header.H) {
cs := f.pki.getCertState()
crt := cs.GetDefaultCertificate()
if crt == nil {
f.l.WithField("from", via).
f.l.WithField("udpAddr", addr).
WithField("handshake", m{"stage": 0, "style": "ix_psk0"}).
WithField("certVersion", cs.initiatingVersion).
Error("Unable to handshake with host because no certificate is available")
@@ -113,7 +112,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
ci, err := NewConnectionState(f.l, cs, crt, false, noise.HandshakeIX)
if err != nil {
f.l.WithError(err).WithField("from", via).
f.l.WithError(err).WithField("udpAddr", addr).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).
Error("Failed to create connection state")
return
@@ -124,7 +123,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
msg, _, _, err := ci.H.ReadMessage(nil, packet[header.Len:])
if err != nil {
f.l.WithError(err).WithField("from", via).
f.l.WithError(err).WithField("udpAddr", addr).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).
Error("Failed to call noise.ReadMessage")
return
@@ -133,7 +132,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
hs := &NebulaHandshake{}
err = hs.Unmarshal(msg)
if err != nil || hs.Details == nil {
f.l.WithError(err).WithField("from", via).
f.l.WithError(err).WithField("udpAddr", addr).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).
Error("Failed unmarshal handshake message")
return
@@ -141,7 +140,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
rc, err := cert.Recombine(cert.Version(hs.Details.CertVersion), hs.Details.Cert, ci.H.PeerStatic(), ci.Curve())
if err != nil {
f.l.WithError(err).WithField("from", via).
f.l.WithError(err).WithField("udpAddr", addr).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).
Info("Handshake did not contain a certificate")
return
@@ -154,7 +153,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
fp = "<error generating certificate fingerprint>"
}
e := f.l.WithError(err).WithField("from", via).
e := f.l.WithError(err).WithField("udpAddr", addr).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).
WithField("certVpnNetworks", rc.Networks()).
WithField("certFingerprint", fp)
@@ -167,20 +166,13 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
return
}
if !bytes.Equal(remoteCert.Certificate.PublicKey(), ci.H.PeerStatic()) {
f.l.WithField("from", via).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).
WithField("cert", remoteCert).Info("public key mismatch between certificate and handshake")
return
}
if remoteCert.Certificate.Version() != ci.myCert.Version() {
// We started off using the wrong certificate version, lets see if we can match the version that was sent to us
myCertOtherVersion := cs.getCertificate(remoteCert.Certificate.Version())
if myCertOtherVersion == nil {
if f.l.Level >= logrus.DebugLevel {
f.l.WithError(err).WithFields(m{
"from": via,
"udpAddr": addr,
"handshake": m{"stage": 1, "style": "ix_psk0"},
"cert": remoteCert,
}).Debug("Might be unable to handshake with host due to missing certificate version")
@@ -192,7 +184,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
}
if len(remoteCert.Certificate.Networks()) == 0 {
f.l.WithError(err).WithField("from", via).
f.l.WithError(err).WithField("udpAddr", addr).
WithField("cert", remoteCert).
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).
Info("No networks in certificate")
@@ -209,7 +201,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
vpnAddrs := make([]netip.Addr, len(vpnNetworks))
for i, network := range vpnNetworks {
if f.myVpnAddrsTable.Contains(network.Addr()) {
f.l.WithField("vpnNetworks", vpnNetworks).WithField("from", via).
f.l.WithField("vpnNetworks", vpnNetworks).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("fingerprint", fingerprint).
@@ -223,18 +215,18 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
}
}
if !via.IsRelayed {
if addr.IsValid() {
// addr can be invalid when the tunnel is being relayed.
// We only want to apply the remote allow list for direct tunnels here
if !f.lightHouse.GetRemoteAllowList().AllowAll(vpnAddrs, via.UdpAddr.Addr()) {
f.l.WithField("vpnAddrs", vpnAddrs).WithField("from", via).
Debug("lighthouse.remote_allow_list denied incoming handshake")
if !f.lightHouse.GetRemoteAllowList().AllowAll(vpnAddrs, addr.Addr()) {
f.l.WithField("vpnAddrs", vpnAddrs).WithField("udpAddr", addr).Debug("lighthouse.remote_allow_list denied incoming handshake")
return
}
}
myIndex, err := generateIndex(f.l)
if err != nil {
f.l.WithError(err).WithField("vpnAddrs", vpnAddrs).WithField("from", via).
f.l.WithError(err).WithField("vpnAddrs", vpnAddrs).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("fingerprint", fingerprint).
@@ -259,7 +251,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
msgRxL := f.l.WithFields(m{
"vpnAddrs": vpnAddrs,
"from": via,
"udpAddr": addr,
"certName": certName,
"certVersion": certVersion,
"fingerprint": fingerprint,
@@ -291,7 +283,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
hsBytes, err := hs.Marshal()
if err != nil {
f.l.WithError(err).WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("from", via).
f.l.WithError(err).WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("fingerprint", fingerprint).
@@ -303,7 +295,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
nh := header.Encode(make([]byte, header.Len), header.Version, header.Handshake, header.HandshakeIXPSK0, hs.Details.InitiatorIndex, 2)
msg, dKey, eKey, err := ci.H.WriteMessage(nh, hsBytes)
if err != nil {
f.l.WithError(err).WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("from", via).
f.l.WithError(err).WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("fingerprint", fingerprint).
@@ -311,7 +303,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
WithField("handshake", m{"stage": 1, "style": "ix_psk0"}).Error("Failed to call noise.WriteMessage")
return
} else if dKey == nil || eKey == nil {
f.l.WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("from", via).
f.l.WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("fingerprint", fingerprint).
@@ -337,9 +329,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
ci.eKey = NewNebulaCipherState(eKey)
hostinfo.remotes = f.lightHouse.QueryCache(vpnAddrs)
if !via.IsRelayed {
hostinfo.SetRemote(via.UdpAddr)
}
hostinfo.SetRemote(addr)
hostinfo.buildNetworks(f.myVpnNetworksTable, remoteCert.Certificate)
existing, err := f.handshakeManager.CheckAndComplete(hostinfo, 0, f)
@@ -347,7 +337,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
switch err {
case ErrAlreadySeen:
// Update remote if preferred
if existing.SetRemoteIfPreferred(f.hostMap, via) {
if existing.SetRemoteIfPreferred(f.hostMap, addr) {
// Send a test packet to ensure the other side has also switched to
// the preferred remote
f.SendMessageToVpnAddr(header.Test, header.TestRequest, vpnAddrs[0], []byte(""), make([]byte, 12, 12), make([]byte, mtu))
@@ -355,21 +345,21 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
msg = existing.HandshakePacket[2]
f.messageMetrics.Tx(header.Handshake, header.MessageSubType(msg[1]), 1)
if !via.IsRelayed {
err := f.outside.WriteTo(msg, via.UdpAddr)
if addr.IsValid() {
err := f.outside.WriteTo(msg, addr)
if err != nil {
f.l.WithField("vpnAddrs", existing.vpnAddrs).WithField("from", via).
f.l.WithField("vpnAddrs", existing.vpnAddrs).WithField("udpAddr", addr).
WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).WithField("cached", true).
WithError(err).Error("Failed to send handshake message")
} else {
f.l.WithField("vpnAddrs", existing.vpnAddrs).WithField("from", via).
f.l.WithField("vpnAddrs", existing.vpnAddrs).WithField("udpAddr", addr).
WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).WithField("cached", true).
Info("Handshake message sent")
}
return
} else {
if via.relay == nil {
f.l.Error("Handshake send failed: both addr and via.relay are nil.")
if via == nil {
f.l.Error("Handshake send failed: both addr and via are nil.")
return
}
hostinfo.relayState.InsertRelayTo(via.relayHI.vpnAddrs[0])
@@ -381,7 +371,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
}
case ErrExistingHostInfo:
// This means there was an existing tunnel and this handshake was older than the one we are currently based on
f.l.WithField("vpnAddrs", vpnAddrs).WithField("from", via).
f.l.WithField("vpnAddrs", vpnAddrs).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("oldHandshakeTime", existing.lastHandshakeTime).
@@ -397,7 +387,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
return
case ErrLocalIndexCollision:
// This means we failed to insert because of collision on localIndexId. Just let the next handshake packet retry
f.l.WithField("vpnAddrs", vpnAddrs).WithField("from", via).
f.l.WithField("vpnAddrs", vpnAddrs).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("fingerprint", fingerprint).
@@ -410,7 +400,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
default:
// Shouldn't happen, but just in case someone adds a new error type to CheckAndComplete
// And we forget to update it here
f.l.WithError(err).WithField("vpnAddrs", vpnAddrs).WithField("from", via).
f.l.WithError(err).WithField("vpnAddrs", vpnAddrs).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("fingerprint", fingerprint).
@@ -424,23 +414,30 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
// Do the send
f.messageMetrics.Tx(header.Handshake, header.MessageSubType(msg[1]), 1)
if !via.IsRelayed {
err = f.outside.WriteTo(msg, via.UdpAddr)
log := f.l.WithField("vpnAddrs", vpnAddrs).WithField("from", via).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("fingerprint", fingerprint).
WithField("issuer", issuer).
WithField("initiatorIndex", hs.Details.InitiatorIndex).WithField("responderIndex", hs.Details.ResponderIndex).
WithField("remoteIndex", h.RemoteIndex).WithField("handshake", m{"stage": 2, "style": "ix_psk0"})
if addr.IsValid() {
err = f.outside.WriteTo(msg, addr)
if err != nil {
log.WithError(err).Error("Failed to send handshake")
f.l.WithField("vpnAddrs", vpnAddrs).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("fingerprint", fingerprint).
WithField("issuer", issuer).
WithField("initiatorIndex", hs.Details.InitiatorIndex).WithField("responderIndex", hs.Details.ResponderIndex).
WithField("remoteIndex", h.RemoteIndex).WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
WithError(err).Error("Failed to send handshake")
} else {
log.Info("Handshake message sent")
f.l.WithField("vpnAddrs", vpnAddrs).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("fingerprint", fingerprint).
WithField("issuer", issuer).
WithField("initiatorIndex", hs.Details.InitiatorIndex).WithField("responderIndex", hs.Details.ResponderIndex).
WithField("remoteIndex", h.RemoteIndex).WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
Info("Handshake message sent")
}
} else {
if via.relay == nil {
f.l.Error("Handshake send failed: both addr and via.relay are nil.")
if via == nil {
f.l.Error("Handshake send failed: both addr and via are nil.")
return
}
hostinfo.relayState.InsertRelayTo(via.relayHI.vpnAddrs[0])
@@ -465,7 +462,7 @@ func ixHandshakeStage1(f *Interface, via ViaSender, packet []byte, h *header.H)
return
}
func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packet []byte, h *header.H) bool {
func ixHandshakeStage2(f *Interface, addr netip.AddrPort, via *ViaSender, hh *HandshakeHostInfo, packet []byte, h *header.H) bool {
if hh == nil {
// Nothing here to tear down, got a bogus stage 2 packet
return true
@@ -475,10 +472,10 @@ func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packe
defer hh.Unlock()
hostinfo := hh.hostinfo
if !via.IsRelayed {
if addr.IsValid() {
// The vpnAddr we know about is the one we tried to handshake with, use it to apply the remote allow list.
if !f.lightHouse.GetRemoteAllowList().AllowAll(hostinfo.vpnAddrs, via.UdpAddr.Addr()) {
f.l.WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("from", via).Debug("lighthouse.remote_allow_list denied incoming handshake")
if !f.lightHouse.GetRemoteAllowList().AllowAll(hostinfo.vpnAddrs, addr.Addr()) {
f.l.WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("udpAddr", addr).Debug("lighthouse.remote_allow_list denied incoming handshake")
return false
}
}
@@ -486,7 +483,7 @@ func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packe
ci := hostinfo.ConnectionState
msg, eKey, dKey, err := ci.H.ReadMessage(nil, packet[header.Len:])
if err != nil {
f.l.WithError(err).WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("from", via).
f.l.WithError(err).WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("udpAddr", addr).
WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).WithField("header", h).
Error("Failed to call noise.ReadMessage")
@@ -495,7 +492,7 @@ func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packe
// near future
return false
} else if dKey == nil || eKey == nil {
f.l.WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("from", via).
f.l.WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("udpAddr", addr).
WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
Error("Noise did not arrive at a key")
@@ -507,7 +504,7 @@ func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packe
hs := &NebulaHandshake{}
err = hs.Unmarshal(msg)
if err != nil || hs.Details == nil {
f.l.WithError(err).WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("from", via).
f.l.WithError(err).WithField("vpnAddrs", hostinfo.vpnAddrs).WithField("udpAddr", addr).
WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).Error("Failed unmarshal handshake message")
// The handshake state machine is complete, if things break now there is no chance to recover. Tear down and start again
@@ -516,7 +513,7 @@ func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packe
rc, err := cert.Recombine(cert.Version(hs.Details.CertVersion), hs.Details.Cert, ci.H.PeerStatic(), ci.Curve())
if err != nil {
f.l.WithError(err).WithField("from", via).
f.l.WithError(err).WithField("udpAddr", addr).
WithField("vpnAddrs", hostinfo.vpnAddrs).
WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
Info("Handshake did not contain a certificate")
@@ -530,7 +527,7 @@ func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packe
fp = "<error generating certificate fingerprint>"
}
e := f.l.WithError(err).WithField("from", via).
e := f.l.WithError(err).WithField("udpAddr", addr).
WithField("vpnAddrs", hostinfo.vpnAddrs).
WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
WithField("certFingerprint", fp).
@@ -543,15 +540,9 @@ func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packe
e.Info("Invalid certificate from host")
return true
}
if !bytes.Equal(remoteCert.Certificate.PublicKey(), ci.H.PeerStatic()) {
f.l.WithField("from", via).
WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
WithField("cert", remoteCert).Info("public key mismatch between certificate and handshake")
return true
}
if len(remoteCert.Certificate.Networks()) == 0 {
f.l.WithError(err).WithField("from", via).
f.l.WithError(err).WithField("udpAddr", addr).
WithField("vpnAddrs", hostinfo.vpnAddrs).
WithField("cert", remoteCert).
WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
@@ -574,8 +565,8 @@ func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packe
ci.eKey = NewNebulaCipherState(eKey)
// Make sure the current udpAddr being used is set for responding
if !via.IsRelayed {
hostinfo.SetRemote(via.UdpAddr)
if addr.IsValid() {
hostinfo.SetRemote(addr)
} else {
hostinfo.relayState.InsertRelayTo(via.relayHI.vpnAddrs[0])
}
@@ -597,7 +588,7 @@ func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packe
// Ensure the right host responded
if !correctHostResponded {
f.l.WithField("intendedVpnAddrs", hostinfo.vpnAddrs).WithField("haveVpnNetworks", vpnNetworks).
WithField("from", via).
WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("handshake", m{"stage": 2, "style": "ix_psk0"}).
@@ -611,7 +602,7 @@ func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packe
f.handshakeManager.StartHandshake(hostinfo.vpnAddrs[0], func(newHH *HandshakeHostInfo) {
// Block the current used address
newHH.hostinfo.remotes = hostinfo.remotes
newHH.hostinfo.remotes.BlockRemote(via)
newHH.hostinfo.remotes.BlockRemote(addr)
f.l.WithField("blockedUdpAddrs", newHH.hostinfo.remotes.CopyBlockedRemotes()).
WithField("vpnNetworks", vpnNetworks).
@@ -634,7 +625,7 @@ func ixHandshakeStage2(f *Interface, via ViaSender, hh *HandshakeHostInfo, packe
ci.window.Update(f.l, 2)
duration := time.Since(hh.startTime).Nanoseconds()
msgRxL := f.l.WithField("vpnAddrs", vpnAddrs).WithField("from", via).
msgRxL := f.l.WithField("vpnAddrs", vpnAddrs).WithField("udpAddr", addr).
WithField("certName", certName).
WithField("certVersion", certVersion).
WithField("fingerprint", fingerprint).
+6 -6
View File
@@ -136,11 +136,11 @@ func (hm *HandshakeManager) Run(ctx context.Context) {
}
}
func (hm *HandshakeManager) HandleIncoming(via ViaSender, packet []byte, h *header.H) {
func (hm *HandshakeManager) HandleIncoming(addr netip.AddrPort, via *ViaSender, packet []byte, h *header.H) {
// First remote allow list check before we know the vpnIp
if !via.IsRelayed {
if !hm.lightHouse.GetRemoteAllowList().AllowUnknownVpnAddr(via.UdpAddr.Addr()) {
hm.l.WithField("from", via).Debug("lighthouse.remote_allow_list denied incoming handshake")
if addr.IsValid() {
if !hm.lightHouse.GetRemoteAllowList().AllowUnknownVpnAddr(addr.Addr()) {
hm.l.WithField("udpAddr", addr).Debug("lighthouse.remote_allow_list denied incoming handshake")
return
}
}
@@ -149,11 +149,11 @@ func (hm *HandshakeManager) HandleIncoming(via ViaSender, packet []byte, h *head
case header.HandshakeIXPSK0:
switch h.MessageCounter {
case 1:
ixHandshakeStage1(hm.f, via, packet, h)
ixHandshakeStage1(hm.f, addr, via, packet, h)
case 2:
newHostinfo := hm.queryIndex(h.RemoteIndex)
tearDown := ixHandshakeStage2(hm.f, via, newHostinfo, packet, h)
tearDown := ixHandshakeStage2(hm.f, addr, via, newHostinfo, packet, h)
if tearDown && newHostinfo != nil {
hm.DeleteHostInfo(newHostinfo.hostinfo)
}
+6 -25
View File
@@ -1,9 +1,7 @@
package nebula
import (
"encoding/json"
"errors"
"fmt"
"net"
"net/netip"
"slices"
@@ -278,25 +276,9 @@ type HostInfo struct {
}
type ViaSender struct {
UdpAddr netip.AddrPort
relayHI *HostInfo // relayHI is the host info object of the relay
remoteIdx uint32 // remoteIdx is the index included in the header of the received packet
relay *Relay // relay contains the rest of the relay information, including the PeerIP of the host trying to communicate with us.
IsRelayed bool // IsRelayed is true if the packet was sent through a relay
}
func (v ViaSender) String() string {
if v.IsRelayed {
return fmt.Sprintf("%s (relayed)", v.UdpAddr)
}
return v.UdpAddr.String()
}
func (v ViaSender) MarshalJSON() ([]byte, error) {
if v.IsRelayed {
return json.Marshal(m{"relay": v.UdpAddr})
}
return json.Marshal(m{"direct": v.UdpAddr})
}
type cachedPacket struct {
@@ -712,7 +694,6 @@ func (i *HostInfo) GetCert() *cert.CachedCertificate {
return nil
}
// TODO: Maybe use ViaSender here?
func (i *HostInfo) SetRemote(remote netip.AddrPort) {
// We copy here because we likely got this remote from a source that reuses the object
if i.remote != remote {
@@ -723,14 +704,14 @@ func (i *HostInfo) SetRemote(remote netip.AddrPort) {
// SetRemoteIfPreferred returns true if the remote was changed. The lastRoam
// time on the HostInfo will also be updated.
func (i *HostInfo) SetRemoteIfPreferred(hm *HostMap, via ViaSender) bool {
if via.IsRelayed {
func (i *HostInfo) SetRemoteIfPreferred(hm *HostMap, newRemote netip.AddrPort) bool {
if !newRemote.IsValid() {
// relays have nil udp Addrs
return false
}
currentRemote := i.remote
if !currentRemote.IsValid() {
i.SetRemote(via.UdpAddr)
i.SetRemote(newRemote)
return true
}
@@ -743,7 +724,7 @@ func (i *HostInfo) SetRemoteIfPreferred(hm *HostMap, via ViaSender) bool {
return false
}
if l.Contains(via.UdpAddr.Addr()) {
if l.Contains(newRemote.Addr()) {
newIsPreferred = true
}
}
@@ -753,7 +734,7 @@ func (i *HostInfo) SetRemoteIfPreferred(hm *HostMap, via ViaSender) bool {
i.lastRoam = time.Now()
i.lastRoamRemote = currentRemote
i.SetRemote(via.UdpAddr)
i.SetRemote(newRemote)
return true
}
-254
View File
@@ -2,8 +2,6 @@ package nebula
import (
"net/netip"
"sync"
"time"
"github.com/sirupsen/logrus"
"github.com/slackhq/nebula/firewall"
@@ -13,258 +11,6 @@ import (
"github.com/slackhq/nebula/routing"
)
// preEncryptionPacket holds packet data before batch encryption
type preEncryptionPacket struct {
hostinfo *HostInfo
ci *ConnectionState
packet []byte
out []byte
}
// Pool for preEncryptionBatch slices to reduce allocations
var preEncryptionBatchPool = sync.Pool{
New: func() any {
// Pre-allocate with reasonable capacity
batch := make([]preEncryptionPacket, 0, 128)
return &batch
},
}
// consumeInsidePackets processes multiple packets in a batch for improved performance
// packets: slice of packet buffers to process
// sizes: slice of packet sizes
// count: number of packets to process
// outs: slice of output buffers (one per packet) with virtio headroom
// q: queue index
// localCache: firewall conntrack cache
// batchPackets: pre-allocated slice for accumulating encrypted packets
// batchAddrs: pre-allocated slice for accumulating destination addresses
func (f *Interface) consumeInsidePackets(packets [][]byte, sizes []int, count int, outs [][]byte, nb []byte, q int, localCache firewall.ConntrackCache, batchPackets *[][]byte, batchAddrs *[]netip.AddrPort) {
// Reusable per-packet state
fwPacket := &firewall.Packet{}
// Reset batch accumulation slices (reuse capacity)
*batchPackets = (*batchPackets)[:0]
*batchAddrs = (*batchAddrs)[:0]
// Collect packets for batched encryption
preEncryptionBatch := make([]preEncryptionPacket, 0, count)
// Process each packet in the batch
for i := 0; i < count; i++ {
packet := packets[i][:sizes[i]]
out := outs[i]
// Inline the consumeInsidePacket logic for better performance
err := newPacket(packet, false, fwPacket)
if err != nil {
if f.l.Level >= logrus.DebugLevel {
f.l.WithField("packet", packet).Debugf("Error while validating outbound packet: %s", err)
}
continue
}
// Ignore local broadcast packets
if f.dropLocalBroadcast {
if f.myBroadcastAddrsTable.Contains(fwPacket.RemoteAddr) {
continue
}
}
if f.myVpnAddrsTable.Contains(fwPacket.RemoteAddr) {
// Immediately forward packets from self to self.
if immediatelyForwardToSelf {
_, err := f.readers[q].Write(packet)
if err != nil {
f.l.WithError(err).Error("Failed to forward to tun")
}
}
continue
}
// Ignore multicast packets
if f.dropMulticast && fwPacket.RemoteAddr.IsMulticast() {
continue
}
hostinfo, ready := f.getOrHandshakeConsiderRouting(fwPacket, func(hh *HandshakeHostInfo) {
hh.cachePacket(f.l, header.Message, 0, packet, f.sendMessageNow, f.cachedPacketMetrics)
})
if hostinfo == nil {
f.rejectInside(packet, out, q)
if f.l.Level >= logrus.DebugLevel {
f.l.WithField("vpnAddr", fwPacket.RemoteAddr).
WithField("fwPacket", fwPacket).
Debugln("dropping outbound packet, vpnAddr not in our vpn networks or in unsafe networks")
}
continue
}
if !ready {
continue
}
dropReason := f.firewall.Drop(*fwPacket, false, hostinfo, f.pki.GetCAPool(), localCache)
if dropReason != nil {
f.rejectInside(packet, out, q)
if f.l.Level >= logrus.DebugLevel {
hostinfo.logger(f.l).
WithField("fwPacket", fwPacket).
WithField("reason", dropReason).
Debugln("dropping outbound packet")
}
continue
}
// Prepare packet for batch encryption
ci := hostinfo.ConnectionState
if ci.eKey == nil {
continue
}
// Check if this needs relay - if so, send immediately and skip batching
useRelay := !hostinfo.remote.IsValid()
if useRelay {
// Handle relay sends individually (less common path)
f.sendNoMetrics(header.Message, 0, ci, hostinfo, netip.AddrPort{}, packet, nb, out, q)
continue
}
// Collect for batched encryption
preEncryptionBatch = append(preEncryptionBatch, preEncryptionPacket{
hostinfo: hostinfo,
ci: ci,
packet: packet,
out: out,
})
}
// BATCH ENCRYPTION: Process all collected packets
if len(preEncryptionBatch) > 0 {
f.encryptBatch(preEncryptionBatch, nb, batchPackets, batchAddrs)
}
// Send all accumulated packets in one batch
if len(*batchPackets) > 0 {
batchSize := len(*batchPackets)
n, err := f.writers[q].WriteMulti(*batchPackets, *batchAddrs)
if err != nil {
f.l.WithError(err).WithField("sent", n).WithField("total", batchSize).Error("Failed to send batch")
}
}
}
// encryptBatch processes multiple packets, grouping by ConnectionState to reduce lock acquisitions
func (f *Interface) encryptBatch(batch []preEncryptionPacket, nb []byte, batchPackets *[][]byte, batchAddrs *[]netip.AddrPort) {
lockStart := time.Now()
lockAcquisitions := int64(0)
if noiseutil.EncryptLockNeeded {
// Group packets by ConnectionState to minimize lock acquisitions
// Process packets in order but batch lock acquisitions per CI
var currentCI *ConnectionState
var lockHeld bool
for i := range batch {
ci := batch[i].ci
hostinfo := batch[i].hostinfo
// Validate packet data to prevent nil pointer dereference
if ci == nil || hostinfo == nil {
continue
}
// Switch locks if we're moving to a different ConnectionState
if ci != currentCI {
if lockHeld {
currentCI.writeLock.Unlock()
}
ci.writeLock.Lock()
lockAcquisitions++
currentCI = ci
lockHeld = true
}
c := ci.messageCounter.Add(1)
out := header.Encode(batch[i].out, header.Version, header.Message, 0, hostinfo.remoteIndexId, c)
f.connectionManager.Out(hostinfo)
// Query lighthouse if needed
if hostinfo.lastRebindCount != f.rebindCount {
f.lightHouse.QueryServer(hostinfo.vpnAddrs[0])
hostinfo.lastRebindCount = f.rebindCount
if f.l.Level >= logrus.DebugLevel {
f.l.WithField("vpnAddrs", hostinfo.vpnAddrs).Debug("Lighthouse update triggered for punch due to rebind counter")
}
}
var err error
out, err = ci.eKey.EncryptDanger(out, out, batch[i].packet, c, nb)
if err != nil {
hostinfo.logger(f.l).WithError(err).
WithField("counter", c).
Error("Failed to encrypt outgoing packet")
continue
}
// Add to output batches
*batchPackets = append(*batchPackets, out)
*batchAddrs = append(*batchAddrs, hostinfo.remote)
}
// Release final lock
if lockHeld {
currentCI.writeLock.Unlock()
}
} else {
// No locks needed - process directly
for i := range batch {
ci := batch[i].ci
hostinfo := batch[i].hostinfo
// Validate packet data to prevent nil pointer dereference
if ci == nil || hostinfo == nil {
continue
}
c := ci.messageCounter.Add(1)
out := header.Encode(batch[i].out, header.Version, header.Message, 0, hostinfo.remoteIndexId, c)
f.connectionManager.Out(hostinfo)
// Query lighthouse if needed
if hostinfo.lastRebindCount != f.rebindCount {
f.lightHouse.QueryServer(hostinfo.vpnAddrs[0])
hostinfo.lastRebindCount = f.rebindCount
if f.l.Level >= logrus.DebugLevel {
f.l.WithField("vpnAddrs", hostinfo.vpnAddrs).Debug("Lighthouse update triggered for punch due to rebind counter")
}
}
var err error
out, err = ci.eKey.EncryptDanger(out, out, batch[i].packet, c, nb)
if err != nil {
hostinfo.logger(f.l).WithError(err).
WithField("counter", c).
Error("Failed to encrypt outgoing packet")
continue
}
// Add to output batches
*batchPackets = append(*batchPackets, out)
*batchAddrs = append(*batchAddrs, hostinfo.remote)
}
}
// Record metrics
encryptionTime := time.Since(lockStart)
if noiseutil.EncryptLockNeeded {
f.batchMetrics.lockAcquisitions.Inc(lockAcquisitions)
}
f.batchMetrics.encryptionTime.Update(encryptionTime.Nanoseconds())
f.batchMetrics.batchSize.Update(int64(len(batch)))
}
func (f *Interface) consumeInsidePacket(packet []byte, fwPacket *firewall.Packet, nb, out []byte, q int, localCache firewall.ConntrackCache) {
err := newPacket(packet, false, fwPacket)
if err != nil {
+35 -112
View File
@@ -4,6 +4,7 @@ import (
"context"
"errors"
"fmt"
"io"
"net/netip"
"os"
"runtime"
@@ -21,7 +22,6 @@ import (
)
const mtu = 9001
const virtioNetHdrLen = overlay.VirtioNetHdrLen
type InterfaceConfig struct {
HostMap *HostMap
@@ -50,13 +50,6 @@ type InterfaceConfig struct {
l *logrus.Logger
}
type batchMetrics struct {
udpReadSize metrics.Histogram
encryptionTime metrics.Histogram // Time spent in encryption (including lock waits)
batchSize metrics.Histogram // Dynamic batch sizes being used
lockAcquisitions metrics.Counter // Number of lock acquisitions (should be minimal)
}
type Interface struct {
hostMap *HostMap
outside udp.Conn
@@ -84,8 +77,7 @@ type Interface struct {
reQueryEvery atomic.Uint32
reQueryWait atomic.Int64
sendRecvErrorConfig recvErrorConfig
acceptRecvErrorConfig recvErrorConfig
sendRecvErrorConfig sendRecvErrorConfig
// rebindCount is used to decide if an active tunnel should trigger a punch notification through a lighthouse
rebindCount int8
@@ -94,12 +86,11 @@ type Interface struct {
conntrackCacheTimeout time.Duration
writers []udp.Conn
readers []overlay.BatchReadWriter
readers []io.ReadWriteCloser
metricHandshakes metrics.Histogram
messageMetrics *MessageMetrics
cachedPacketMetrics *cachedPacketMetrics
batchMetrics *batchMetrics
l *logrus.Logger
}
@@ -119,34 +110,34 @@ type EncWriter interface {
GetCertState() *CertState
}
type recvErrorConfig uint8
type sendRecvErrorConfig uint8
const (
recvErrorAlways recvErrorConfig = iota
recvErrorNever
recvErrorPrivate
sendRecvErrorAlways sendRecvErrorConfig = iota
sendRecvErrorNever
sendRecvErrorPrivate
)
func (s recvErrorConfig) ShouldRecvError(endpoint netip.AddrPort) bool {
func (s sendRecvErrorConfig) ShouldSendRecvError(endpoint netip.AddrPort) bool {
switch s {
case recvErrorPrivate:
case sendRecvErrorPrivate:
return endpoint.Addr().IsPrivate()
case recvErrorAlways:
case sendRecvErrorAlways:
return true
case recvErrorNever:
case sendRecvErrorNever:
return false
default:
panic(fmt.Errorf("invalid recvErrorConfig value: %d", s))
panic(fmt.Errorf("invalid sendRecvErrorConfig value: %d", s))
}
}
func (s recvErrorConfig) String() string {
func (s sendRecvErrorConfig) String() string {
switch s {
case recvErrorAlways:
case sendRecvErrorAlways:
return "always"
case recvErrorNever:
case sendRecvErrorNever:
return "never"
case recvErrorPrivate:
case sendRecvErrorPrivate:
return "private"
default:
return fmt.Sprintf("invalid(%d)", s)
@@ -186,7 +177,7 @@ func NewInterface(ctx context.Context, c *InterfaceConfig) (*Interface, error) {
routines: c.routines,
version: c.version,
writers: make([]udp.Conn, c.routines),
readers: make([]overlay.BatchReadWriter, c.routines),
readers: make([]io.ReadWriteCloser, c.routines),
myVpnNetworks: cs.myVpnNetworks,
myVpnNetworksTable: cs.myVpnNetworksTable,
myVpnAddrs: cs.myVpnAddrs,
@@ -202,12 +193,6 @@ func NewInterface(ctx context.Context, c *InterfaceConfig) (*Interface, error) {
sent: metrics.GetOrRegisterCounter("hostinfo.cached_packets.sent", nil),
dropped: metrics.GetOrRegisterCounter("hostinfo.cached_packets.dropped", nil),
},
batchMetrics: &batchMetrics{
udpReadSize: metrics.GetOrRegisterHistogram("batch.udp_read_size", nil, metrics.NewUniformSample(1024)),
encryptionTime: metrics.GetOrRegisterHistogram("batch.encryption_time_ns", nil, metrics.NewUniformSample(1024)),
batchSize: metrics.GetOrRegisterHistogram("batch.size", nil, metrics.NewUniformSample(1024)),
lockAcquisitions: metrics.GetOrRegisterCounter("batch.lock_acquisitions", nil),
},
l: c.l,
}
@@ -247,7 +232,7 @@ func (f *Interface) activate() {
metrics.GetOrRegisterGauge("routines", nil).Update(int64(f.routines))
// Prepare n tun queues
var reader overlay.BatchReadWriter = f.inside
var reader io.ReadWriteCloser = f.inside
for i := 0; i < f.routines; i++ {
if i > 0 {
reader, err = f.inside.NewMultiQueueReader()
@@ -288,75 +273,45 @@ func (f *Interface) listenOut(i int) {
ctCache := firewall.NewConntrackCacheTicker(f.conntrackCacheTimeout)
lhh := f.lightHouse.NewRequestHandler()
// Pre-allocate output buffers for batch processing
batchSize := li.BatchSize()
outs := make([][]byte, batchSize)
for idx := range outs {
// Allocate full buffer with virtio header space
outs[idx] = make([]byte, virtioNetHdrLen, virtioNetHdrLen+udp.MTU)
}
plaintext := make([]byte, udp.MTU)
h := &header.H{}
fwPacket := &firewall.Packet{}
nb := make([]byte, 12)
li.ListenOutBatch(func(addrs []netip.AddrPort, payloads [][]byte, count int) {
f.readOutsidePacketsBatch(addrs, payloads, count, outs[:count], nb, i, h, fwPacket, lhh, ctCache.Get(f.l))
nb := make([]byte, 12, 12)
li.ListenOut(func(fromUdpAddr netip.AddrPort, payload []byte) {
f.readOutsidePackets(fromUdpAddr, nil, plaintext[:0], payload, h, fwPacket, lhh, nb, i, ctCache.Get(f.l))
})
}
func (f *Interface) listenIn(reader overlay.BatchReadWriter, i int) {
func (f *Interface) listenIn(reader io.ReadWriteCloser, i int) {
runtime.LockOSThread()
batchSize := reader.BatchSize()
// Allocate buffers for batch reading
bufs := make([][]byte, batchSize)
for idx := range bufs {
bufs[idx] = make([]byte, mtu)
}
sizes := make([]int, batchSize)
// Allocate output buffers for batch processing (one per packet)
// Each has virtio header headroom to avoid copies on write
outs := make([][]byte, batchSize)
for idx := range outs {
outBuf := make([]byte, virtioNetHdrLen+mtu)
outs[idx] = outBuf[virtioNetHdrLen:] // Slice starting after headroom
}
// Pre-allocate batch accumulation buffers for sending
batchPackets := make([][]byte, 0, batchSize)
batchAddrs := make([]netip.AddrPort, 0, batchSize)
// Pre-allocate nonce buffer (reused for all encryptions)
nb := make([]byte, 12)
packet := make([]byte, mtu)
out := make([]byte, mtu)
fwPacket := &firewall.Packet{}
nb := make([]byte, 12, 12)
conntrackCache := firewall.NewConntrackCacheTicker(f.conntrackCacheTimeout)
for {
n, err := reader.BatchRead(bufs, sizes)
n, err := reader.Read(packet)
if err != nil {
if errors.Is(err, os.ErrClosed) && f.closed.Load() {
return
}
f.l.WithError(err).Error("Error while batch reading outbound packets")
f.l.WithError(err).Error("Error while reading outbound packet")
// This only seems to happen when something fatal happens to the fd, so exit.
os.Exit(2)
}
// Process all packets in the batch at once
f.consumeInsidePackets(bufs, sizes, n, outs, nb, i, conntrackCache.Get(f.l), &batchPackets, &batchAddrs)
f.consumeInsidePacket(packet[:n], fwPacket, nb, out, i, conntrackCache.Get(f.l))
}
}
func (f *Interface) RegisterConfigChangeCallbacks(c *config.C) {
c.RegisterReloadCallback(f.reloadFirewall)
c.RegisterReloadCallback(f.reloadSendRecvError)
c.RegisterReloadCallback(f.reloadAcceptRecvError)
c.RegisterReloadCallback(f.reloadDisconnectInvalid)
c.RegisterReloadCallback(f.reloadMisc)
@@ -420,16 +375,16 @@ func (f *Interface) reloadSendRecvError(c *config.C) {
switch stringValue {
case "always":
f.sendRecvErrorConfig = recvErrorAlways
f.sendRecvErrorConfig = sendRecvErrorAlways
case "never":
f.sendRecvErrorConfig = recvErrorNever
f.sendRecvErrorConfig = sendRecvErrorNever
case "private":
f.sendRecvErrorConfig = recvErrorPrivate
f.sendRecvErrorConfig = sendRecvErrorPrivate
default:
if c.GetBool("listen.send_recv_error", true) {
f.sendRecvErrorConfig = recvErrorAlways
f.sendRecvErrorConfig = sendRecvErrorAlways
} else {
f.sendRecvErrorConfig = recvErrorNever
f.sendRecvErrorConfig = sendRecvErrorNever
}
}
@@ -438,30 +393,6 @@ func (f *Interface) reloadSendRecvError(c *config.C) {
}
}
func (f *Interface) reloadAcceptRecvError(c *config.C) {
if c.InitialLoad() || c.HasChanged("listen.accept_recv_error") {
stringValue := c.GetString("listen.accept_recv_error", "always")
switch stringValue {
case "always":
f.acceptRecvErrorConfig = recvErrorAlways
case "never":
f.acceptRecvErrorConfig = recvErrorNever
case "private":
f.acceptRecvErrorConfig = recvErrorPrivate
default:
if c.GetBool("listen.accept_recv_error", true) {
f.acceptRecvErrorConfig = recvErrorAlways
} else {
f.acceptRecvErrorConfig = recvErrorNever
}
}
f.l.WithField("acceptRecvError", f.acceptRecvErrorConfig.String()).
Info("Loaded accept_recv_error config")
}
}
func (f *Interface) reloadMisc(c *config.C) {
if c.HasChanged("counters.try_promote") {
n := c.GetUint32("counters.try_promote", defaultPromoteEvery)
@@ -533,14 +464,6 @@ func (f *Interface) Close() error {
f.l.WithError(err).Error("Error while closing udp socket")
}
}
for i, r := range f.readers {
if i == 0 {
continue // f.readers[0] is f.inside, which we want to save for last
}
if err := r.Close(); err != nil {
f.l.WithError(err).Error("Error while closing tun reader")
}
}
// Release the tun device
return f.inside.Close()
+9 -8
View File
@@ -1,6 +1,7 @@
package nebula
import (
"context"
"encoding/binary"
"fmt"
"net/netip"
@@ -41,14 +42,14 @@ func Test_lhStaticMapping(t *testing.T) {
c := config.NewC(l)
c.Settings["lighthouse"] = map[string]any{"hosts": []any{lh1}}
c.Settings["static_host_map"] = map[string]any{lh1: []any{"1.1.1.1:4242"}}
_, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
_, err := NewLightHouseFromConfig(context.Background(), l, c, cs, nil, nil)
require.NoError(t, err)
lh2 := "10.128.0.3"
c = config.NewC(l)
c.Settings["lighthouse"] = map[string]any{"hosts": []any{lh1, lh2}}
c.Settings["static_host_map"] = map[string]any{lh1: []any{"100.1.1.1:4242"}}
_, err = NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
_, err = NewLightHouseFromConfig(context.Background(), l, c, cs, nil, nil)
require.EqualError(t, err, "lighthouse 10.128.0.3 does not have a static_host_map entry")
}
@@ -70,7 +71,7 @@ func TestReloadLighthouseInterval(t *testing.T) {
}
c.Settings["static_host_map"] = map[string]any{lh1: []any{"1.1.1.1:4242"}}
lh, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
lh, err := NewLightHouseFromConfig(context.Background(), l, c, cs, nil, nil)
require.NoError(t, err)
lh.ifce = &mockEncWriter{}
@@ -98,7 +99,7 @@ func BenchmarkLighthouseHandleRequest(b *testing.B) {
}
c := config.NewC(l)
lh, err := NewLightHouseFromConfig(b.Context(), l, c, cs, nil, nil)
lh, err := NewLightHouseFromConfig(context.Background(), l, c, cs, nil, nil)
require.NoError(b, err)
hAddr := netip.MustParseAddrPort("4.5.6.7:12345")
@@ -201,7 +202,7 @@ func TestLighthouse_Memory(t *testing.T) {
myVpnNetworks: []netip.Prefix{myVpnNet},
myVpnNetworksTable: nt,
}
lh, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
lh, err := NewLightHouseFromConfig(context.Background(), l, c, cs, nil, nil)
lh.ifce = &mockEncWriter{}
require.NoError(t, err)
lhh := lh.NewRequestHandler()
@@ -287,7 +288,7 @@ func TestLighthouse_reload(t *testing.T) {
myVpnNetworksTable: nt,
}
lh, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
lh, err := NewLightHouseFromConfig(context.Background(), l, c, cs, nil, nil)
require.NoError(t, err)
nc := map[string]any{
@@ -522,7 +523,7 @@ func TestLighthouse_Dont_Delete_Static_Hosts(t *testing.T) {
myVpnNetworks: []netip.Prefix{myVpnNet},
myVpnNetworksTable: nt,
}
lh, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
lh, err := NewLightHouseFromConfig(context.Background(), l, c, cs, nil, nil)
require.NoError(t, err)
lh.ifce = &mockEncWriter{}
@@ -588,7 +589,7 @@ func TestLighthouse_DeletesWork(t *testing.T) {
myVpnNetworks: []netip.Prefix{myVpnNet},
myVpnNetworksTable: nt,
}
lh, err := NewLightHouseFromConfig(t.Context(), l, c, cs, nil, nil)
lh, err := NewLightHouseFromConfig(context.Background(), l, c, cs, nil, nil)
require.NoError(t, err)
lh.ifce = &mockEncWriter{}
+1 -2
View File
@@ -171,7 +171,7 @@ func Main(c *config.C, configTest bool, buildVersion string, logger *logrus.Logg
for i := 0; i < routines; i++ {
l.Infof("listening on %v", netip.AddrPortFrom(listenHost, uint16(port)))
udpServer, err := udp.NewListener(l, listenHost, port, routines > 1, c.GetInt("listen.batch", 128))
udpServer, err := udp.NewListener(l, listenHost, port, routines > 1, c.GetInt("listen.batch", 64))
if err != nil {
return nil, util.NewContextualError("Failed to open udp listener", m{"queue": i}, err)
}
@@ -265,7 +265,6 @@ func Main(c *config.C, configTest bool, buildVersion string, logger *logrus.Logg
ifce.RegisterConfigChangeCallbacks(c)
ifce.reloadDisconnectInvalid(c)
ifce.reloadSendRecvError(c)
ifce.reloadAcceptRecvError(c)
handshakeManager.f = ifce
go handshakeManager.Run(ctx)
+1 -1
View File
@@ -22,7 +22,7 @@ const EncryptLockNeeded = true
// NewGCMTLS is no longer exposed in go1.19+, so we need to link it in
// See: https://github.com/golang/go/issues/56326
//
// NewGCMTLS is the internal method used with boringcrypto that provides a
// NewGCMTLS is the internal method used with boringcrypto that provices a
// validated mode of AES-GCM which enforces the nonce is strictly
// monotonically increasing. This is the TLS 1.2 specification for nonce
// generation (which also matches the method used by the Noise Protocol)
+40 -161
View File
@@ -19,21 +19,21 @@ const (
minFwPacketLen = 4
)
func (f *Interface) readOutsidePackets(via ViaSender, out []byte, packet []byte, h *header.H, fwPacket *firewall.Packet, lhf *LightHouseHandler, nb []byte, q int, localCache firewall.ConntrackCache) {
func (f *Interface) readOutsidePackets(ip netip.AddrPort, via *ViaSender, out []byte, packet []byte, h *header.H, fwPacket *firewall.Packet, lhf *LightHouseHandler, nb []byte, q int, localCache firewall.ConntrackCache) {
err := h.Parse(packet)
if err != nil {
// Hole punch packets are 0 or 1 byte big, so lets ignore printing those errors
if len(packet) > 1 {
f.l.WithField("packet", packet).Infof("Error while parsing inbound packet from %s: %s", via, err)
f.l.WithField("packet", packet).Infof("Error while parsing inbound packet from %s: %s", ip, err)
}
return
}
//l.Error("in packet ", header, packet[HeaderLen:])
if !via.IsRelayed {
if f.myVpnNetworksTable.Contains(via.UdpAddr.Addr()) {
if ip.IsValid() {
if f.myVpnNetworksTable.Contains(ip.Addr()) {
if f.l.Level >= logrus.DebugLevel {
f.l.WithField("from", via).Debug("Refusing to process double encrypted packet")
f.l.WithField("udpAddr", ip).Debug("Refusing to process double encrypted packet")
}
return
}
@@ -54,7 +54,8 @@ func (f *Interface) readOutsidePackets(via ViaSender, out []byte, packet []byte,
switch h.Type {
case header.Message:
if !f.handleEncrypted(ci, via, h) {
// TODO handleEncrypted sends directly to addr on error. Handle this in the tunneling case.
if !f.handleEncrypted(ci, ip, h) {
return
}
@@ -78,7 +79,7 @@ func (f *Interface) readOutsidePackets(via ViaSender, out []byte, packet []byte,
// Successfully validated the thing. Get rid of the Relay header.
signedPayload = signedPayload[header.Len:]
// Pull the Roaming parts up here, and return in all call paths.
f.handleHostRoaming(hostinfo, via)
f.handleHostRoaming(hostinfo, ip)
// Track usage of both the HostInfo and the Relay for the received & authenticated packet
f.connectionManager.In(hostinfo)
f.connectionManager.RelayUsed(h.RemoteIndex)
@@ -95,14 +96,7 @@ func (f *Interface) readOutsidePackets(via ViaSender, out []byte, packet []byte,
case TerminalType:
// If I am the target of this relay, process the unwrapped packet
// From this recursive point, all these variables are 'burned'. We shouldn't rely on them again.
via = ViaSender{
UdpAddr: via.UdpAddr,
relayHI: hostinfo,
remoteIdx: relay.RemoteIndex,
relay: relay,
IsRelayed: true,
}
f.readOutsidePackets(via, out[:virtioNetHdrLen], signedPayload, h, fwPacket, lhf, nb, q, localCache)
f.readOutsidePackets(netip.AddrPort{}, &ViaSender{relayHI: hostinfo, remoteIdx: relay.RemoteIndex, relay: relay}, out[:0], signedPayload, h, fwPacket, lhf, nb, q, localCache)
return
case ForwardingType:
// Find the target HostInfo relay object
@@ -132,32 +126,31 @@ func (f *Interface) readOutsidePackets(via ViaSender, out []byte, packet []byte,
case header.LightHouse:
f.messageMetrics.Rx(h.Type, h.Subtype, 1)
if !f.handleEncrypted(ci, via, h) {
if !f.handleEncrypted(ci, ip, h) {
return
}
d, err := f.decrypt(hostinfo, h.MessageCounter, out, packet, h, nb)
if err != nil {
hostinfo.logger(f.l).WithError(err).WithField("from", via).
hostinfo.logger(f.l).WithError(err).WithField("udpAddr", ip).
WithField("packet", packet).
Error("Failed to decrypt lighthouse packet")
return
}
//TODO: assert via is not relayed
lhf.HandleRequest(via.UdpAddr, hostinfo.vpnAddrs, d[virtioNetHdrLen:], f)
lhf.HandleRequest(ip, hostinfo.vpnAddrs, d, f)
// Fallthrough to the bottom to record incoming traffic
case header.Test:
f.messageMetrics.Rx(h.Type, h.Subtype, 1)
if !f.handleEncrypted(ci, via, h) {
if !f.handleEncrypted(ci, ip, h) {
return
}
d, err := f.decrypt(hostinfo, h.MessageCounter, out, packet, h, nb)
if err != nil {
hostinfo.logger(f.l).WithError(err).WithField("from", via).
hostinfo.logger(f.l).WithError(err).WithField("udpAddr", ip).
WithField("packet", packet).
Error("Failed to decrypt test packet")
return
@@ -166,8 +159,8 @@ func (f *Interface) readOutsidePackets(via ViaSender, out []byte, packet []byte,
if h.Subtype == header.TestRequest {
// This testRequest might be from TryPromoteBest, so we should roam
// to the new IP address before responding
f.handleHostRoaming(hostinfo, via)
f.send(header.Test, header.TestReply, ci, hostinfo, d[virtioNetHdrLen:], nb, out)
f.handleHostRoaming(hostinfo, ip)
f.send(header.Test, header.TestReply, ci, hostinfo, d, nb, out)
}
// Fallthrough to the bottom to record incoming traffic
@@ -177,48 +170,48 @@ func (f *Interface) readOutsidePackets(via ViaSender, out []byte, packet []byte,
case header.Handshake:
f.messageMetrics.Rx(h.Type, h.Subtype, 1)
f.handshakeManager.HandleIncoming(via, packet, h)
f.handshakeManager.HandleIncoming(ip, via, packet, h)
return
case header.RecvError:
f.messageMetrics.Rx(h.Type, h.Subtype, 1)
f.handleRecvError(via.UdpAddr, h)
f.handleRecvError(ip, h)
return
case header.CloseTunnel:
f.messageMetrics.Rx(h.Type, h.Subtype, 1)
if !f.handleEncrypted(ci, via, h) {
if !f.handleEncrypted(ci, ip, h) {
return
}
hostinfo.logger(f.l).WithField("from", via).
hostinfo.logger(f.l).WithField("udpAddr", ip).
Info("Close tunnel received, tearing down.")
f.closeTunnel(hostinfo)
return
case header.Control:
if !f.handleEncrypted(ci, via, h) {
if !f.handleEncrypted(ci, ip, h) {
return
}
d, err := f.decrypt(hostinfo, h.MessageCounter, out, packet, h, nb)
if err != nil {
hostinfo.logger(f.l).WithError(err).WithField("from", via).
hostinfo.logger(f.l).WithError(err).WithField("udpAddr", ip).
WithField("packet", packet).
Error("Failed to decrypt Control packet")
return
}
f.relayManager.HandleControlMsg(hostinfo, d[virtioNetHdrLen:], f)
f.relayManager.HandleControlMsg(hostinfo, d, f)
default:
f.messageMetrics.Rx(h.Type, h.Subtype, 1)
hostinfo.logger(f.l).Debugf("Unexpected packet received from %s", via)
hostinfo.logger(f.l).Debugf("Unexpected packet received from %s", ip)
return
}
f.handleHostRoaming(hostinfo, via)
f.handleHostRoaming(hostinfo, ip)
f.connectionManager.In(hostinfo)
}
@@ -237,36 +230,36 @@ func (f *Interface) sendCloseTunnel(h *HostInfo) {
f.send(header.CloseTunnel, 0, h.ConnectionState, h, []byte{}, make([]byte, 12, 12), make([]byte, mtu))
}
func (f *Interface) handleHostRoaming(hostinfo *HostInfo, via ViaSender) {
if !via.IsRelayed && hostinfo.remote != via.UdpAddr {
if !f.lightHouse.GetRemoteAllowList().AllowAll(hostinfo.vpnAddrs, via.UdpAddr.Addr()) {
hostinfo.logger(f.l).WithField("newAddr", via.UdpAddr).Debug("lighthouse.remote_allow_list denied roaming")
func (f *Interface) handleHostRoaming(hostinfo *HostInfo, udpAddr netip.AddrPort) {
if udpAddr.IsValid() && hostinfo.remote != udpAddr {
if !f.lightHouse.GetRemoteAllowList().AllowAll(hostinfo.vpnAddrs, udpAddr.Addr()) {
hostinfo.logger(f.l).WithField("newAddr", udpAddr).Debug("lighthouse.remote_allow_list denied roaming")
return
}
if !hostinfo.lastRoam.IsZero() && via.UdpAddr == hostinfo.lastRoamRemote && time.Since(hostinfo.lastRoam) < RoamingSuppressSeconds*time.Second {
if !hostinfo.lastRoam.IsZero() && udpAddr == hostinfo.lastRoamRemote && time.Since(hostinfo.lastRoam) < RoamingSuppressSeconds*time.Second {
if f.l.Level >= logrus.DebugLevel {
hostinfo.logger(f.l).WithField("udpAddr", hostinfo.remote).WithField("newAddr", via.UdpAddr).
hostinfo.logger(f.l).WithField("udpAddr", hostinfo.remote).WithField("newAddr", udpAddr).
Debugf("Suppressing roam back to previous remote for %d seconds", RoamingSuppressSeconds)
}
return
}
hostinfo.logger(f.l).WithField("udpAddr", hostinfo.remote).WithField("newAddr", via.UdpAddr).
hostinfo.logger(f.l).WithField("udpAddr", hostinfo.remote).WithField("newAddr", udpAddr).
Info("Host roamed to new udp ip/port.")
hostinfo.lastRoam = time.Now()
hostinfo.lastRoamRemote = hostinfo.remote
hostinfo.SetRemote(via.UdpAddr)
hostinfo.SetRemote(udpAddr)
}
}
// handleEncrypted returns true if a packet should be processed, false otherwise
func (f *Interface) handleEncrypted(ci *ConnectionState, via ViaSender, h *header.H) bool {
func (f *Interface) handleEncrypted(ci *ConnectionState, addr netip.AddrPort, h *header.H) bool {
// If connectionstate does not exist, send a recv error, if possible, to encourage a fast reconnect
if ci == nil {
if !via.IsRelayed {
f.maybeSendRecvError(via.UdpAddr, h.RemoteIndex)
if addr.IsValid() {
f.maybeSendRecvError(addr, h.RemoteIndex)
}
return false
}
@@ -481,11 +474,9 @@ func (f *Interface) decryptToTun(hostinfo *HostInfo, messageCounter uint64, out
return false
}
packetData := out[virtioNetHdrLen:]
err = newPacket(packetData, true, fwPacket)
err = newPacket(out, true, fwPacket)
if err != nil {
hostinfo.logger(f.l).WithError(err).WithField("packet", packetData).
hostinfo.logger(f.l).WithError(err).WithField("packet", out).
Warnf("Error while validating inbound packet")
return false
}
@@ -500,7 +491,7 @@ func (f *Interface) decryptToTun(hostinfo *HostInfo, messageCounter uint64, out
if dropReason != nil {
// NOTE: We give `packet` as the `out` here since we already decrypted from it and we don't need it anymore
// This gives us a buffer to build the reject packet in
f.rejectOutside(packetData, hostinfo.ConnectionState, hostinfo, nb, packet, q)
f.rejectOutside(out, hostinfo.ConnectionState, hostinfo, nb, packet, q)
if f.l.Level >= logrus.DebugLevel {
hostinfo.logger(f.l).WithField("fwPacket", fwPacket).
WithField("reason", dropReason).
@@ -518,7 +509,7 @@ func (f *Interface) decryptToTun(hostinfo *HostInfo, messageCounter uint64, out
}
func (f *Interface) maybeSendRecvError(endpoint netip.AddrPort, index uint32) {
if f.sendRecvErrorConfig.ShouldRecvError(endpoint) {
if f.sendRecvErrorConfig.ShouldSendRecvError(endpoint) {
f.sendRecvError(endpoint, index)
}
}
@@ -536,13 +527,6 @@ func (f *Interface) sendRecvError(endpoint netip.AddrPort, index uint32) {
}
func (f *Interface) handleRecvError(addr netip.AddrPort, h *header.H) {
if !f.acceptRecvErrorConfig.ShouldRecvError(addr) {
f.l.WithField("index", h.RemoteIndex).
WithField("udpAddr", addr).
Debug("Recv error received, ignoring")
return
}
if f.l.Level >= logrus.DebugLevel {
f.l.WithField("index", h.RemoteIndex).
WithField("udpAddr", addr).
@@ -564,108 +548,3 @@ func (f *Interface) handleRecvError(addr netip.AddrPort, h *header.H) {
// We also delete it from pending hostmap to allow for fast reconnect.
f.handshakeManager.DeleteHostInfo(hostinfo)
}
// readOutsidePacketsBatch processes multiple packets received from UDP in a batch
// and writes all successfully decrypted packets to TUN in a single operation
func (f *Interface) readOutsidePacketsBatch(addrs []netip.AddrPort, payloads [][]byte, count int, outs [][]byte, nb []byte, q int, h *header.H, fwPacket *firewall.Packet, lhf *LightHouseHandler, localCache firewall.ConntrackCache) {
// Pre-allocate slice for accumulating successful decryptions
tunPackets := make([][]byte, 0, count)
for i := 0; i < count; i++ {
payload := payloads[i]
addr := addrs[i]
out := outs[i]
// Parse header
err := h.Parse(payload)
if err != nil {
if len(payload) > 1 {
f.l.WithField("packet", payload).Infof("Error while parsing inbound packet from %s: %s", addr, err)
}
continue
}
if addr.IsValid() {
if f.myVpnNetworksTable.Contains(addr.Addr()) {
if f.l.Level >= logrus.DebugLevel {
f.l.WithField("udpAddr", addr).Debug("Refusing to process double encrypted packet")
}
continue
}
}
var hostinfo *HostInfo
if h.Type == header.Message && h.Subtype == header.MessageRelay {
hostinfo = f.hostMap.QueryRelayIndex(h.RemoteIndex)
} else {
hostinfo = f.hostMap.QueryIndex(h.RemoteIndex)
}
var ci *ConnectionState
if hostinfo != nil {
ci = hostinfo.ConnectionState
}
switch h.Type {
case header.Message:
if !f.handleEncrypted(ci, ViaSender{UdpAddr: addr}, h) {
continue
}
switch h.Subtype {
case header.MessageNone:
// Decrypt packet
out, err = hostinfo.ConnectionState.dKey.DecryptDanger(out, payload[:header.Len], payload[header.Len:], h.MessageCounter, nb)
if err != nil {
hostinfo.logger(f.l).WithError(err).Error("Failed to decrypt packet")
continue
}
packetData := out[virtioNetHdrLen:]
err = newPacket(packetData, true, fwPacket)
if err != nil {
hostinfo.logger(f.l).WithError(err).WithField("packet", packetData).Warnf("Error while validating inbound packet")
continue
}
if !hostinfo.ConnectionState.window.Update(f.l, h.MessageCounter) {
hostinfo.logger(f.l).WithField("fwPacket", fwPacket).Debugln("dropping out of window packet")
continue
}
dropReason := f.firewall.Drop(*fwPacket, true, hostinfo, f.pki.GetCAPool(), localCache)
if dropReason != nil {
f.rejectOutside(packetData, hostinfo.ConnectionState, hostinfo, nb, payload, q)
if f.l.Level >= logrus.DebugLevel {
hostinfo.logger(f.l).WithField("fwPacket", fwPacket).WithField("reason", dropReason).Debugln("dropping inbound packet")
}
continue
}
f.connectionManager.In(hostinfo)
// Add to batch for TUN write
tunPackets = append(tunPackets, out)
case header.MessageRelay:
// Skip relay packets in batch mode for now (less common path)
f.readOutsidePackets(ViaSender{UdpAddr: addr}, out[:virtioNetHdrLen], payload, h, fwPacket, lhf, nb, q, localCache)
default:
hostinfo.logger(f.l).Debugf("unexpected message subtype %d", h.Subtype)
}
default:
// Handle non-Message types using single-packet path
f.readOutsidePackets(ViaSender{UdpAddr: addr}, out[:virtioNetHdrLen], payload, h, fwPacket, lhf, nb, q, localCache)
}
}
if len(tunPackets) > 0 {
n, err := f.readers[q].WriteBatch(tunPackets, virtioNetHdrLen)
if err != nil {
f.l.WithError(err).WithField("sent", n).WithField("total", len(tunPackets)).Error("Failed to batch write to tun")
}
}
}
+2 -16
View File
@@ -7,26 +7,12 @@ import (
"github.com/slackhq/nebula/routing"
)
// BatchReadWriter extends io.ReadWriteCloser with batch I/O operations
type BatchReadWriter interface {
io.ReadWriteCloser
// BatchRead reads multiple packets at once
BatchRead(bufs [][]byte, sizes []int) (int, error)
// WriteBatch writes multiple packets at once
WriteBatch(bufs [][]byte, offset int) (int, error)
// BatchSize returns the optimal batch size for this device
BatchSize() int
}
type Device interface {
BatchReadWriter
io.ReadWriteCloser
Activate() error
Networks() []netip.Prefix
Name() string
RoutesFor(netip.Addr) routing.Gateways
SupportsMultiqueue() bool
NewMultiQueueReader() (BatchReadWriter, error)
NewMultiQueueReader() (io.ReadWriteCloser, error)
}
-10
View File
@@ -11,16 +11,6 @@ import (
)
const DefaultMTU = 1300
const VirtioNetHdrLen = 10 // Size of virtio_net_hdr structure
type NameError struct {
Name string
Underlying error
}
func (e *NameError) Error() string {
return fmt.Sprintf("could not set tun device name: %s because %s", e.Name, e.Underlying)
}
// TODO: We may be able to remove routines
type DeviceFactory func(c *config.C, l *logrus.Logger, vpnNetworks []netip.Prefix, routines int) (Device, error)
+1 -24
View File
@@ -99,29 +99,6 @@ func (t *tun) SupportsMultiqueue() bool {
return false
}
func (t *tun) NewMultiQueueReader() (BatchReadWriter, error) {
func (t *tun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
return nil, fmt.Errorf("TODO: multiqueue not implemented for android")
}
func (t *tun) BatchRead(bufs [][]byte, sizes []int) (int, error) {
n, err := t.Read(bufs[0])
if err != nil {
return 0, err
}
sizes[0] = n
return 1, nil
}
func (t *tun) WriteBatch(bufs [][]byte, offset int) (int, error) {
for i, buf := range bufs {
_, err := t.Write(buf[offset:])
if err != nil {
return i, err
}
}
return len(bufs), nil
}
func (t *tun) BatchSize() int {
return 1
}
+1 -27
View File
@@ -553,32 +553,6 @@ func (t *tun) SupportsMultiqueue() bool {
return false
}
func (t *tun) NewMultiQueueReader() (BatchReadWriter, error) {
func (t *tun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
return nil, fmt.Errorf("TODO: multiqueue not implemented for darwin")
}
// BatchRead reads a single packet (batch size 1 for non-Linux platforms)
func (t *tun) BatchRead(bufs [][]byte, sizes []int) (int, error) {
n, err := t.Read(bufs[0])
if err != nil {
return 0, err
}
sizes[0] = n
return 1, nil
}
// WriteBatch writes packets individually (no batching for non-Linux platforms)
func (t *tun) WriteBatch(bufs [][]byte, offset int) (int, error) {
for i, buf := range bufs {
_, err := t.Write(buf[offset:])
if err != nil {
return i, err
}
}
return len(bufs), nil
}
// BatchSize returns 1 for non-Linux platforms (no batching)
func (t *tun) BatchSize() int {
return 1
}
+1 -27
View File
@@ -109,36 +109,10 @@ func (t *disabledTun) SupportsMultiqueue() bool {
return true
}
func (t *disabledTun) NewMultiQueueReader() (BatchReadWriter, error) {
func (t *disabledTun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
return t, nil
}
// BatchRead reads a single packet (batch size 1 for disabled tun)
func (t *disabledTun) BatchRead(bufs [][]byte, sizes []int) (int, error) {
n, err := t.Read(bufs[0])
if err != nil {
return 0, err
}
sizes[0] = n
return 1, nil
}
// WriteBatch writes packets individually (no batching for disabled tun)
func (t *disabledTun) WriteBatch(bufs [][]byte, offset int) (int, error) {
for i, buf := range bufs {
_, err := t.Write(buf[offset:])
if err != nil {
return i, err
}
}
return len(bufs), nil
}
// BatchSize returns 1 for disabled tun (no batching)
func (t *disabledTun) BatchSize() int {
return 1
}
func (t *disabledTun) Close() error {
if t.read != nil {
close(t.read)
+3 -28
View File
@@ -7,6 +7,7 @@ import (
"bytes"
"errors"
"fmt"
"io"
"io/fs"
"net/netip"
"sync/atomic"
@@ -265,7 +266,7 @@ func newTun(c *config.C, l *logrus.Logger, vpnNetworks []netip.Prefix, _ bool) (
}
// Set the device name
_ = ioctl(fd, syscall.SIOCSIFNAME, uintptr(unsafe.Pointer(&ifrr)))
ioctl(fd, syscall.SIOCSIFNAME, uintptr(unsafe.Pointer(&ifrr)))
}
t := &tun{
@@ -453,36 +454,10 @@ func (t *tun) SupportsMultiqueue() bool {
return false
}
func (t *tun) NewMultiQueueReader() (BatchReadWriter, error) {
func (t *tun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
return nil, fmt.Errorf("TODO: multiqueue not implemented for freebsd")
}
// BatchRead reads a single packet (batch size 1 for FreeBSD)
func (t *tun) BatchRead(bufs [][]byte, sizes []int) (int, error) {
n, err := t.Read(bufs[0])
if err != nil {
return 0, err
}
sizes[0] = n
return 1, nil
}
// WriteBatch writes packets individually (no batching for FreeBSD)
func (t *tun) WriteBatch(bufs [][]byte, offset int) (int, error) {
for i, buf := range bufs {
_, err := t.Write(buf[offset:])
if err != nil {
return i, err
}
}
return len(bufs), nil
}
// BatchSize returns 1 for FreeBSD (no batching)
func (t *tun) BatchSize() int {
return 1
}
func (t *tun) addRoutes(logErrors bool) error {
routes := *t.Routes.Load()
for _, r := range routes {
+1 -24
View File
@@ -155,29 +155,6 @@ func (t *tun) SupportsMultiqueue() bool {
return false
}
func (t *tun) NewMultiQueueReader() (BatchReadWriter, error) {
func (t *tun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
return nil, fmt.Errorf("TODO: multiqueue not implemented for ios")
}
func (t *tun) BatchRead(bufs [][]byte, sizes []int) (int, error) {
n, err := t.Read(bufs[0])
if err != nil {
return 0, err
}
sizes[0] = n
return 1, nil
}
func (t *tun) WriteBatch(bufs [][]byte, offset int) (int, error) {
for i, buf := range bufs {
_, err := t.Write(buf[offset:])
if err != nil {
return i, err
}
}
return len(bufs), nil
}
func (t *tun) BatchSize() int {
return 1
}
+27 -245
View File
@@ -9,7 +9,7 @@ import (
"net"
"net/netip"
"os"
"sync"
"strings"
"sync/atomic"
"time"
"unsafe"
@@ -21,12 +21,10 @@ import (
"github.com/slackhq/nebula/util"
"github.com/vishvananda/netlink"
"golang.org/x/sys/unix"
wgtun "golang.zx2c4.com/wireguard/tun"
)
type tun struct {
io.ReadWriteCloser
wgDevice wgtun.Device
fd int
Device string
vpnNetworks []netip.Prefix
@@ -42,11 +40,6 @@ type tun struct {
useSystemRoutes bool
useSystemRoutesBufferSize int
// These are routes learned from `tun.use_system_route_table`
// stored here to make it easier to restore them after a reload
routesFromSystem map[netip.Prefix]routing.Gateways
routesFromSystemLock sync.Mutex
l *logrus.Logger
}
@@ -72,154 +65,59 @@ type ifreqQLEN struct {
pad [8]byte
}
// wgDeviceWrapper wraps a wireguard Device to implement io.ReadWriteCloser
// This allows multiqueue readers to use the same wireguard Device batching as the main device
type wgDeviceWrapper struct {
dev wgtun.Device
buf []byte // Reusable buffer for single packet reads
}
func (w *wgDeviceWrapper) Read(b []byte) (int, error) {
// Use wireguard Device's batch API for single packet
bufs := [][]byte{b}
sizes := make([]int, 1)
n, err := w.dev.Read(bufs, sizes, 0)
if err != nil {
return 0, err
}
if n == 0 {
return 0, io.EOF
}
return sizes[0], nil
}
func (w *wgDeviceWrapper) Write(b []byte) (int, error) {
// Buffer b should have virtio header space (10 bytes) at the beginning
// The decrypted packet data starts at offset 10
// Pass the full buffer to WireGuard with offset=virtioNetHdrLen
bufs := [][]byte{b}
n, err := w.dev.Write(bufs, VirtioNetHdrLen)
if err != nil {
return 0, err
}
if n == 0 {
return 0, io.ErrShortWrite
}
return len(b), nil
}
func (w *wgDeviceWrapper) WriteBatch(bufs [][]byte, offset int) (int, error) {
// Pass all buffers to WireGuard's batch write
return w.dev.Write(bufs, offset)
}
func (w *wgDeviceWrapper) Close() error {
return w.dev.Close()
}
// BatchRead implements batching for multiqueue readers
func (w *wgDeviceWrapper) BatchRead(bufs [][]byte, sizes []int) (int, error) {
// The zero here is offset.
return w.dev.Read(bufs, sizes, 0)
}
// BatchSize returns the optimal batch size
func (w *wgDeviceWrapper) BatchSize() int {
return w.dev.BatchSize()
}
func newTunFromFd(c *config.C, l *logrus.Logger, deviceFd int, vpnNetworks []netip.Prefix) (*tun, error) {
wgDev, name, err := wgtun.CreateUnmonitoredTUNFromFD(deviceFd)
if err != nil {
return nil, fmt.Errorf("failed to create TUN from FD: %w", err)
}
file := os.NewFile(uintptr(deviceFd), "/dev/net/tun")
file := wgDev.File()
t, err := newTunGeneric(c, l, file, vpnNetworks)
if err != nil {
_ = wgDev.Close()
return nil, err
}
t.wgDevice = wgDev
t.Device = name
t.Device = "tun0"
return t, nil
}
func newTun(c *config.C, l *logrus.Logger, vpnNetworks []netip.Prefix, multiqueue bool) (*tun, error) {
// Check if /dev/net/tun exists, create if needed (for docker containers)
if _, err := os.Stat("/dev/net/tun"); os.IsNotExist(err) {
if err := os.MkdirAll("/dev/net", 0755); err != nil {
return nil, fmt.Errorf("/dev/net/tun doesn't exist, failed to mkdir -p /dev/net: %w", err)
}
if err := unix.Mknod("/dev/net/tun", unix.S_IFCHR|0600, int(unix.Mkdev(10, 200))); err != nil {
return nil, fmt.Errorf("failed to create /dev/net/tun: %w", err)
}
}
devName := c.GetString("tun.dev", "")
mtu := c.GetInt("tun.mtu", DefaultMTU)
// Create TUN device manually to support multiqueue
fd, err := unix.Open("/dev/net/tun", os.O_RDWR, 0)
if err != nil {
return nil, err
// If /dev/net/tun doesn't exist, try to create it (will happen in docker)
if os.IsNotExist(err) {
err = os.MkdirAll("/dev/net", 0755)
if err != nil {
return nil, fmt.Errorf("/dev/net/tun doesn't exist, failed to mkdir -p /dev/net: %w", err)
}
err = unix.Mknod("/dev/net/tun", unix.S_IFCHR|0600, int(unix.Mkdev(10, 200)))
if err != nil {
return nil, fmt.Errorf("failed to create /dev/net/tun: %w", err)
}
fd, err = unix.Open("/dev/net/tun", os.O_RDWR, 0)
if err != nil {
return nil, fmt.Errorf("created /dev/net/tun, but still failed: %w", err)
}
} else {
return nil, err
}
}
var req ifReq
req.Flags = uint16(unix.IFF_TUN | unix.IFF_NO_PI | unix.IFF_VNET_HDR)
req.Flags = uint16(unix.IFF_TUN | unix.IFF_NO_PI)
if multiqueue {
req.Flags |= unix.IFF_MULTI_QUEUE
}
copy(req.Name[:], devName)
copy(req.Name[:], c.GetString("tun.dev", ""))
if err = ioctl(uintptr(fd), uintptr(unix.TUNSETIFF), uintptr(unsafe.Pointer(&req))); err != nil {
unix.Close(fd)
return nil, err
}
// Set nonblocking
if err = unix.SetNonblock(fd, true); err != nil {
unix.Close(fd)
return nil, err
}
// Enable TCP and UDP offload (TSO/GRO) for performance
// This allows the kernel to handle segmentation/coalescing
const (
tunTCPOffloads = unix.TUN_F_CSUM | unix.TUN_F_TSO4 | unix.TUN_F_TSO6
tunUDPOffloads = unix.TUN_F_USO4 | unix.TUN_F_USO6
)
offloads := tunTCPOffloads | tunUDPOffloads
if err = unix.IoctlSetInt(fd, unix.TUNSETOFFLOAD, offloads); err != nil {
// Log warning but don't fail - offload is optional
l.WithError(err).Warn("Failed to enable TUN offload (TSO/GRO), performance may be reduced")
}
name := strings.Trim(string(req.Name[:]), "\x00")
file := os.NewFile(uintptr(fd), "/dev/net/tun")
// Create wireguard device from file descriptor
wgDev, err := wgtun.CreateTUNFromFile(file, mtu)
if err != nil {
file.Close()
return nil, fmt.Errorf("failed to create TUN from file: %w", err)
}
name, err := wgDev.Name()
if err != nil {
_ = wgDev.Close()
return nil, fmt.Errorf("failed to get TUN device name: %w", err)
}
// file is now owned by wgDev, get a new reference
file = wgDev.File()
t, err := newTunGeneric(c, l, file, vpnNetworks)
if err != nil {
_ = wgDev.Close()
return nil, err
}
t.wgDevice = wgDev
t.Device = name
return t, nil
@@ -233,7 +131,6 @@ func newTunGeneric(c *config.C, l *logrus.Logger, file *os.File, vpnNetworks []n
TXQueueLen: c.GetInt("tun.tx_queue", 500),
useSystemRoutes: c.GetBool("tun.use_system_route_table", false),
useSystemRoutesBufferSize: c.GetInt("tun.use_system_route_table_buffer_size", 0),
routesFromSystem: map[netip.Prefix]routing.Gateways{},
l: l,
}
@@ -267,13 +164,6 @@ func (t *tun) reload(c *config.C, initial bool) error {
return err
}
// Bring along any routes learned from the system route table on reload
t.routesFromSystemLock.Lock()
for dst, gw := range t.routesFromSystem {
routeTree.Insert(dst, gw)
}
t.routesFromSystemLock.Unlock()
oldDefaultMTU := t.DefaultMTU
oldMaxMTU := t.MaxMTU
newDefaultMTU := c.GetInt("tun.mtu", DefaultMTU)
@@ -330,44 +220,22 @@ func (t *tun) SupportsMultiqueue() bool {
return true
}
func (t *tun) NewMultiQueueReader() (BatchReadWriter, error) {
func (t *tun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
fd, err := unix.Open("/dev/net/tun", os.O_RDWR, 0)
if err != nil {
return nil, err
}
var req ifReq
// MUST match the flags used in newTun - includes IFF_VNET_HDR
req.Flags = uint16(unix.IFF_TUN | unix.IFF_NO_PI | unix.IFF_VNET_HDR | unix.IFF_MULTI_QUEUE)
req.Flags = uint16(unix.IFF_TUN | unix.IFF_NO_PI | unix.IFF_MULTI_QUEUE)
copy(req.Name[:], t.Device)
if err = ioctl(uintptr(fd), uintptr(unix.TUNSETIFF), uintptr(unsafe.Pointer(&req))); err != nil {
unix.Close(fd)
return nil, err
}
// Set nonblocking mode - CRITICAL for proper netpoller integration
if err = unix.SetNonblock(fd, true); err != nil {
unix.Close(fd)
return nil, err
}
// Get MTU from main device
mtu := t.MaxMTU
if mtu == 0 {
mtu = DefaultMTU
}
file := os.NewFile(uintptr(fd), "/dev/net/tun")
// Create wireguard Device from the file descriptor (just like the main device)
wgDev, err := wgtun.CreateTUNFromFile(file, mtu)
if err != nil {
file.Close()
return nil, fmt.Errorf("failed to create multiqueue TUN device: %w", err)
}
// Return a wrapper that uses the wireguard Device for all I/O
return &wgDeviceWrapper{dev: wgDev}, nil
return file, nil
}
func (t *tun) RoutesFor(ip netip.Addr) routing.Gateways {
@@ -375,68 +243,7 @@ func (t *tun) RoutesFor(ip netip.Addr) routing.Gateways {
return r
}
func (t *tun) Read(b []byte) (int, error) {
if t.wgDevice != nil {
// Use wireguard device which handles virtio headers internally
bufs := [][]byte{b}
sizes := make([]int, 1)
n, err := t.wgDevice.Read(bufs, sizes, 0)
if err != nil {
return 0, err
}
if n == 0 {
return 0, io.EOF
}
return sizes[0], nil
}
// Fallback: direct read from file (shouldn't happen in normal operation)
return t.ReadWriteCloser.Read(b)
}
// BatchRead reads multiple packets at once for improved performance
// bufs: slice of buffers to read into
// sizes: slice that will be filled with packet sizes
// Returns number of packets read
func (t *tun) BatchRead(bufs [][]byte, sizes []int) (int, error) {
if t.wgDevice != nil {
return t.wgDevice.Read(bufs, sizes, 0)
}
// Fallback: single packet read
n, err := t.ReadWriteCloser.Read(bufs[0])
if err != nil {
return 0, err
}
sizes[0] = n
return 1, nil
}
// BatchSize returns the optimal number of packets to read/write in a batch
func (t *tun) BatchSize() int {
if t.wgDevice != nil {
return t.wgDevice.BatchSize()
}
return 1
}
func (t *tun) Write(b []byte) (int, error) {
if t.wgDevice != nil {
// Buffer b should have virtio header space (10 bytes) at the beginning
// The decrypted packet data starts at offset 10
// Pass the full buffer to WireGuard with offset=virtioNetHdrLen
bufs := [][]byte{b}
n, err := t.wgDevice.Write(bufs, VirtioNetHdrLen)
if err != nil {
return 0, err
}
if n == 0 {
return 0, io.ErrShortWrite
}
return len(b), nil
}
// Fallback: direct write (shouldn't happen in normal operation)
var nn int
maximum := len(b)
@@ -459,22 +266,6 @@ func (t *tun) Write(b []byte) (int, error) {
}
}
// WriteBatch writes multiple packets to the TUN device in a single syscall
func (t *tun) WriteBatch(bufs [][]byte, offset int) (int, error) {
if t.wgDevice != nil {
return t.wgDevice.Write(bufs, offset)
}
// Fallback: write individually (shouldn't happen in normal operation)
for i, buf := range bufs {
_, err := t.Write(buf)
if err != nil {
return i, err
}
}
return len(bufs), nil
}
func (t *tun) deviceBytes() (o [16]byte) {
for i, c := range t.Device {
o[i] = byte(c)
@@ -882,18 +673,14 @@ func (t *tun) updateRoutes(r netlink.RouteUpdate) {
newTree := t.routeTree.Load().Clone()
t.routesFromSystemLock.Lock()
if r.Type == unix.RTM_NEWROUTE {
t.l.WithField("destination", dst).WithField("via", gateways).Info("Adding route")
t.routesFromSystem[dst] = gateways
newTree.Insert(dst, gateways)
} else {
t.l.WithField("destination", dst).WithField("via", gateways).Info("Removing route")
delete(t.routesFromSystem, dst)
newTree.Delete(dst)
}
t.routesFromSystemLock.Unlock()
t.routeTree.Store(newTree)
}
@@ -902,17 +689,12 @@ func (t *tun) Close() error {
close(t.routeChan)
}
if t.wgDevice != nil {
_ = t.wgDevice.Close()
}
if t.ReadWriteCloser != nil {
_ = t.ReadWriteCloser.Close()
}
if t.ioctlFd > 0 {
_ = os.NewFile(t.ioctlFd, "ioctlFd").Close()
t.ioctlFd = 0
}
return nil
+2 -24
View File
@@ -6,6 +6,7 @@ package overlay
import (
"errors"
"fmt"
"io"
"net/netip"
"os"
"regexp"
@@ -393,33 +394,10 @@ func (t *tun) SupportsMultiqueue() bool {
return false
}
func (t *tun) NewMultiQueueReader() (BatchReadWriter, error) {
func (t *tun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
return nil, fmt.Errorf("TODO: multiqueue not implemented for netbsd")
}
func (t *tun) BatchRead(bufs [][]byte, sizes []int) (int, error) {
n, err := t.Read(bufs[0])
if err != nil {
return 0, err
}
sizes[0] = n
return 1, nil
}
func (t *tun) WriteBatch(bufs [][]byte, offset int) (int, error) {
for i, buf := range bufs {
_, err := t.Write(buf[offset:])
if err != nil {
return i, err
}
}
return len(bufs), nil
}
func (t *tun) BatchSize() int {
return 1
}
func (t *tun) addRoutes(logErrors bool) error {
routes := *t.Routes.Load()
+2 -24
View File
@@ -6,6 +6,7 @@ package overlay
import (
"errors"
"fmt"
"io"
"net/netip"
"os"
"regexp"
@@ -313,33 +314,10 @@ func (t *tun) SupportsMultiqueue() bool {
return false
}
func (t *tun) NewMultiQueueReader() (BatchReadWriter, error) {
func (t *tun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
return nil, fmt.Errorf("TODO: multiqueue not implemented for openbsd")
}
func (t *tun) BatchRead(bufs [][]byte, sizes []int) (int, error) {
n, err := t.Read(bufs[0])
if err != nil {
return 0, err
}
sizes[0] = n
return 1, nil
}
func (t *tun) WriteBatch(bufs [][]byte, offset int) (int, error) {
for i, buf := range bufs {
_, err := t.Write(buf[offset:])
if err != nil {
return i, err
}
}
return len(bufs), nil
}
func (t *tun) BatchSize() int {
return 1
}
func (t *tun) addRoutes(logErrors bool) error {
routes := *t.Routes.Load()
+3 -35
View File
@@ -109,12 +109,8 @@ func (t *TestTun) Write(b []byte) (n int, err error) {
return 0, io.ErrClosedPipe
}
// Skip virtio header (consistent with production Linux tun)
// The buffer b has VirtioNetHdrLen bytes of header followed by the actual packet
data := b[VirtioNetHdrLen:]
packet := make([]byte, len(data))
copy(packet, data)
packet := make([]byte, len(b), len(b))
copy(packet, b)
t.TxPackets <- packet
return len(b), nil
}
@@ -140,34 +136,6 @@ func (t *TestTun) SupportsMultiqueue() bool {
return false
}
func (t *TestTun) NewMultiQueueReader() (BatchReadWriter, error) {
func (t *TestTun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
return nil, fmt.Errorf("TODO: multiqueue not implemented")
}
func (t *TestTun) BatchRead(bufs [][]byte, sizes []int) (int, error) {
n, err := t.Read(bufs[0])
if err != nil {
return 0, err
}
sizes[0] = n
return 1, nil
}
func (t *TestTun) WriteBatch(bufs [][]byte, offset int) (int, error) {
if t.closed.Load() {
return 0, io.ErrClosedPipe
}
for _, buf := range bufs {
// Strip the header at offset and send directly to channel
data := buf[offset:]
packet := make([]byte, len(data))
copy(packet, data)
t.TxPackets <- packet
}
return len(bufs), nil
}
func (t *TestTun) BatchSize() int {
return 1
}
+3 -31
View File
@@ -6,6 +6,7 @@ package overlay
import (
"crypto"
"fmt"
"io"
"net/netip"
"os"
"path/filepath"
@@ -73,10 +74,7 @@ func newTun(c *config.C, l *logrus.Logger, vpnNetworks []netip.Prefix, _ bool) (
l.WithError(err).Debug("Failed to create wintun device, retrying")
tunDevice, err = wintun.CreateTUNWithRequestedGUID(deviceName, guid, t.MTU)
if err != nil {
return nil, &NameError{
Name: deviceName,
Underlying: fmt.Errorf("create TUN device failed: %w", err),
}
return nil, fmt.Errorf("create TUN device failed: %w", err)
}
}
t.tun = tunDevice.(*wintun.NativeTun)
@@ -240,36 +238,10 @@ func (t *winTun) SupportsMultiqueue() bool {
return false
}
func (t *winTun) NewMultiQueueReader() (BatchReadWriter, error) {
func (t *winTun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
return nil, fmt.Errorf("TODO: multiqueue not implemented for windows")
}
// BatchRead reads a single packet (batch size 1 for Windows)
func (t *winTun) BatchRead(bufs [][]byte, sizes []int) (int, error) {
n, err := t.Read(bufs[0])
if err != nil {
return 0, err
}
sizes[0] = n
return 1, nil
}
// WriteBatch writes packets individually (no batching for Windows)
func (t *winTun) WriteBatch(bufs [][]byte, offset int) (int, error) {
for i, buf := range bufs {
_, err := t.Write(buf[offset:])
if err != nil {
return i, err
}
}
return len(bufs), nil
}
// BatchSize returns 1 for Windows (no batching)
func (t *winTun) BatchSize() int {
return 1
}
func (t *winTun) Close() error {
// It seems that the Windows networking stack doesn't like it when we destroy interfaces that have active routes,
// so to be certain, just remove everything before destroying.
+1 -27
View File
@@ -50,36 +50,10 @@ func (d *UserDevice) SupportsMultiqueue() bool {
return true
}
func (d *UserDevice) NewMultiQueueReader() (BatchReadWriter, error) {
func (d *UserDevice) NewMultiQueueReader() (io.ReadWriteCloser, error) {
return d, nil
}
// BatchRead reads a single packet (batch size 1 for UserDevice)
func (d *UserDevice) BatchRead(bufs [][]byte, sizes []int) (int, error) {
n, err := d.Read(bufs[0])
if err != nil {
return 0, err
}
sizes[0] = n
return 1, nil
}
// WriteBatch writes packets individually (no batching for UserDevice)
func (d *UserDevice) WriteBatch(bufs [][]byte, offset int) (int, error) {
for i, buf := range bufs {
_, err := d.Write(buf[offset:])
if err != nil {
return i, err
}
}
return len(bufs), nil
}
// BatchSize returns 1 for UserDevice (no batching)
func (d *UserDevice) BatchSize() int {
return 1
}
func (d *UserDevice) Pipe() (*io.PipeReader, *io.PipeWriter) {
return d.inboundReader, d.outboundWriter
}
+5 -5
View File
@@ -338,21 +338,21 @@ func (r *RemoteList) CopyCache() *CacheMap {
}
// BlockRemote locks and records the address as bad, it will be excluded from the deduplicated address list
func (r *RemoteList) BlockRemote(bad ViaSender) {
if bad.IsRelayed {
func (r *RemoteList) BlockRemote(bad netip.AddrPort) {
if !bad.IsValid() {
// relays can have nil udp Addrs
return
}
r.Lock()
defer r.Unlock()
// Check if we already blocked this addr
if r.unlockedIsBad(bad.UdpAddr) {
if r.unlockedIsBad(bad) {
return
}
// We copy here because we are taking something else's memory and we can't trust everything
r.badRemotes = append(r.badRemotes, bad.UdpAddr)
r.badRemotes = append(r.badRemotes, bad)
// Mark the next interaction must recollect/dedupe
r.shouldRebuild = true
+1 -1
View File
@@ -6,7 +6,7 @@ import (
)
const (
// Sentinel value
// Sentinal value
BucketNotCalculated = -1
)
-1
View File
@@ -6,7 +6,6 @@ import (
"log"
"net"
"net/http"
_ "net/http/pprof"
"runtime"
"strconv"
"time"
+2 -18
View File
@@ -1,11 +1,10 @@
package device
package test
import (
"errors"
"io"
"net/netip"
"github.com/slackhq/nebula/overlay"
"github.com/slackhq/nebula/routing"
)
@@ -39,25 +38,10 @@ func (NoopTun) SupportsMultiqueue() bool {
return false
}
func (NoopTun) NewMultiQueueReader() (overlay.BatchReadWriter, error) {
func (NoopTun) NewMultiQueueReader() (io.ReadWriteCloser, error) {
return nil, errors.New("unsupported")
}
func (NoopTun) Close() error {
return nil
}
// BatchRead implements BatchReadWriter interface
func (NoopTun) BatchRead(bufs [][]byte, sizes []int) (int, error) {
return 0, io.EOF
}
// WriteBatch implements BatchReadWriter interface
func (NoopTun) WriteBatch(bufs [][]byte, offset int) (int, error) {
return len(bufs), nil
}
// BatchSize implements BatchReadWriter interface
func (NoopTun) BatchSize() int {
return 1
}
+6 -22
View File
@@ -13,21 +13,13 @@ type EncReader func(
payload []byte,
)
type EncBatchReader func(
addrs []netip.AddrPort,
payloads [][]byte,
count int,
)
type Conn interface {
Rebind() error
LocalAddr() (netip.AddrPort, error)
ListenOutBatch(r EncBatchReader)
ListenOut(r EncReader)
WriteTo(b []byte, addr netip.AddrPort) error
WriteMulti(packets [][]byte, addrs []netip.AddrPort) (int, error)
ReloadConfig(c *config.C)
SupportsMultipleReaders() bool
BatchSize() int
Close() error
}
@@ -39,25 +31,17 @@ func (NoopConn) Rebind() error {
func (NoopConn) LocalAddr() (netip.AddrPort, error) {
return netip.AddrPort{}, nil
}
func (NoopConn) ListenOut(_ EncReader) {}
func (NoopConn) ListenOut(_ EncReader) {
return
}
func (NoopConn) SupportsMultipleReaders() bool {
return false
}
func (NoopConn) ListenOutBatch(_ EncBatchReader) {}
func (NoopConn) WriteTo(_ []byte, _ netip.AddrPort) error {
return nil
}
func (NoopConn) WriteMulti(_ [][]byte, _ []netip.AddrPort) (int, error) {
return 0, nil
}
func (NoopConn) ReloadConfig(_ *config.C) {}
func (NoopConn) BatchSize() int {
return 1
func (NoopConn) ReloadConfig(_ *config.C) {
return
}
func (NoopConn) Close() error {
return nil
-39
View File
@@ -140,17 +140,6 @@ func (u *StdConn) WriteTo(b []byte, ap netip.AddrPort) error {
}
}
// WriteMulti sends multiple packets - fallback implementation without sendmmsg
func (u *StdConn) WriteMulti(packets [][]byte, addrs []netip.AddrPort) (int, error) {
for i := range packets {
err := u.WriteTo(packets[i], addrs[i])
if err != nil {
return i, err
}
}
return len(packets), nil
}
func (u *StdConn) LocalAddr() (netip.AddrPort, error) {
a := u.UDPConn.LocalAddr()
@@ -199,34 +188,6 @@ func (u *StdConn) SupportsMultipleReaders() bool {
return false
}
// ListenOutBatch - fallback to single-packet reads for Darwin
func (u *StdConn) ListenOutBatch(r EncBatchReader) {
buffer := make([]byte, MTU)
addrs := make([]netip.AddrPort, 1)
payloads := make([][]byte, 1)
for {
// Just read one packet at a time and call batch callback with count=1
n, rua, err := u.ReadFromUDPAddrPort(buffer)
if err != nil {
if errors.Is(err, net.ErrClosed) {
u.l.WithError(err).Debug("udp socket is closed, exiting read loop")
return
}
u.l.WithError(err).Error("unexpected udp socket receive error")
}
addrs[0] = netip.AddrPortFrom(rua.Addr().Unmap(), rua.Port())
payloads[0] = buffer[:n]
r(addrs, payloads, 1)
}
}
func (u *StdConn) BatchSize() int {
return 1
}
func (u *StdConn) Rebind() error {
var err error
if u.isV4 {
+2 -49
View File
@@ -10,11 +10,9 @@ package udp
import (
"context"
"errors"
"fmt"
"net"
"net/netip"
"time"
"github.com/sirupsen/logrus"
"github.com/slackhq/nebula/config"
@@ -76,22 +74,12 @@ type rawMessage struct {
func (u *GenericConn) ListenOut(r EncReader) {
buffer := make([]byte, MTU)
var lastRecvErr time.Time
for {
// Just read one packet at a time
n, rua, err := u.ReadFromUDPAddrPort(buffer)
if err != nil {
if errors.Is(err, net.ErrClosed) {
u.l.WithError(err).Debug("udp socket is closed, exiting read loop")
return
}
// Dampen unexpected message warns to once per minute
if lastRecvErr.IsZero() || time.Since(lastRecvErr) > time.Minute {
lastRecvErr = time.Now()
u.l.WithError(err).Warn("unexpected udp socket receive error")
}
continue
u.l.WithError(err).Debug("udp socket is closed, exiting read loop")
return
}
r(netip.AddrPortFrom(rua.Addr().Unmap(), rua.Port()), buffer[:n])
@@ -101,38 +89,3 @@ func (u *GenericConn) ListenOut(r EncReader) {
func (u *GenericConn) SupportsMultipleReaders() bool {
return false
}
// ListenOutBatch - fallback to single-packet reads for generic platforms
func (u *GenericConn) ListenOutBatch(r EncBatchReader) {
buffer := make([]byte, MTU)
addrs := make([]netip.AddrPort, 1)
payloads := make([][]byte, 1)
for {
// Just read one packet at a time and call batch callback with count=1
n, rua, err := u.ReadFromUDPAddrPort(buffer)
if err != nil {
u.l.WithError(err).Debug("udp socket is closed, exiting read loop")
return
}
addrs[0] = netip.AddrPortFrom(rua.Addr().Unmap(), rua.Port())
payloads[0] = buffer[:n]
r(addrs, payloads, 1)
}
}
// WriteMulti sends multiple packets - fallback implementation
func (u *GenericConn) WriteMulti(packets [][]byte, addrs []netip.AddrPort) (int, error) {
for i := range packets {
err := u.WriteTo(packets[i], addrs[i])
if err != nil {
return i, err
}
}
return len(packets), nil
}
func (u *GenericConn) BatchSize() int {
return 1
}
+4 -174
View File
@@ -22,11 +22,6 @@ type StdConn struct {
isV4 bool
l *logrus.Logger
batch int
// Pre-allocated buffers for batch writes (sized for IPv6, works for both)
writeMsgs []rawMessage
writeIovecs []iovec
writeNames [][]byte
}
func maybeIPV4(ip net.IP) (net.IP, bool) {
@@ -74,26 +69,7 @@ func NewListener(l *logrus.Logger, ip netip.Addr, port int, multi bool, batch in
return nil, fmt.Errorf("unable to bind to socket: %s", err)
}
c := &StdConn{sysFd: fd, isV4: ip.Is4(), l: l, batch: batch}
// Pre-allocate write message structures for batching (sized for IPv6, works for both)
c.writeMsgs = make([]rawMessage, batch)
c.writeIovecs = make([]iovec, batch)
c.writeNames = make([][]byte, batch)
for i := range c.writeMsgs {
// Allocate for IPv6 size (larger than IPv4, works for both)
c.writeNames[i] = make([]byte, unix.SizeofSockaddrInet6)
// Point to the iovec in the slice
c.writeMsgs[i].Hdr.Iov = &c.writeIovecs[i]
c.writeMsgs[i].Hdr.Iovlen = 1
c.writeMsgs[i].Hdr.Name = &c.writeNames[i][0]
// Namelen will be set appropriately in writeMulti4/writeMulti6
}
return c, err
return &StdConn{sysFd: fd, isV4: ip.Is4(), l: l, batch: batch}, err
}
func (u *StdConn) SupportsMultipleReaders() bool {
@@ -146,7 +122,7 @@ func (u *StdConn) LocalAddr() (netip.AddrPort, error) {
}
}
func (u *StdConn) ListenOutBatch(r EncBatchReader) {
func (u *StdConn) ListenOut(r EncReader) {
var ip netip.Addr
msgs, buffers, names := u.PrepareRawMessages(u.batch)
@@ -155,12 +131,6 @@ func (u *StdConn) ListenOutBatch(r EncBatchReader) {
read = u.ReadSingle
}
udpBatchHist := metrics.GetOrRegisterHistogram("batch.udp_read_size", nil, metrics.NewUniformSample(1024))
// Pre-allocate slices for batch callback
addrs := make([]netip.AddrPort, u.batch)
payloads := make([][]byte, u.batch)
for {
n, err := read(msgs)
if err != nil {
@@ -168,21 +138,15 @@ func (u *StdConn) ListenOutBatch(r EncBatchReader) {
return
}
udpBatchHist.Update(int64(n))
// Prepare batch data
for i := 0; i < n; i++ {
// Its ok to skip the ok check here, the slicing is the only error that can occur and it will panic
if u.isV4 {
ip, _ = netip.AddrFromSlice(names[i][4:8])
} else {
ip, _ = netip.AddrFromSlice(names[i][8:24])
}
addrs[i] = netip.AddrPortFrom(ip.Unmap(), binary.BigEndian.Uint16(names[i][2:4]))
payloads[i] = buffers[i][:msgs[i].Len]
r(netip.AddrPortFrom(ip.Unmap(), binary.BigEndian.Uint16(names[i][2:4])), buffers[i][:msgs[i].Len])
}
// Call batch callback with all packets
r(addrs, payloads, n)
}
}
@@ -234,19 +198,6 @@ func (u *StdConn) WriteTo(b []byte, ip netip.AddrPort) error {
return u.writeTo6(b, ip)
}
func (u *StdConn) WriteMulti(packets [][]byte, addrs []netip.AddrPort) (int, error) {
if len(packets) != len(addrs) {
return 0, fmt.Errorf("packets and addrs length mismatch")
}
if len(packets) == 0 {
return 0, nil
}
if u.isV4 {
return u.writeMulti4(packets, addrs)
}
return u.writeMulti6(packets, addrs)
}
func (u *StdConn) writeTo6(b []byte, ip netip.AddrPort) error {
var rsa unix.RawSockaddrInet6
rsa.Family = unix.AF_INET6
@@ -301,123 +252,6 @@ func (u *StdConn) writeTo4(b []byte, ip netip.AddrPort) error {
}
}
func (u *StdConn) writeMulti4(packets [][]byte, addrs []netip.AddrPort) (int, error) {
sent := 0
for sent < len(packets) {
// Determine batch size based on remaining packets and buffer capacity
batchSize := len(packets) - sent
if batchSize > len(u.writeMsgs) {
batchSize = len(u.writeMsgs)
}
// Use pre-allocated buffers
msgs := u.writeMsgs[:batchSize]
iovecs := u.writeIovecs[:batchSize]
names := u.writeNames[:batchSize]
// Setup message structures for this batch
for i := 0; i < batchSize; i++ {
pktIdx := sent + i
if !addrs[pktIdx].Addr().Is4() {
return sent + i, ErrInvalidIPv6RemoteForSocket
}
// Setup the packet buffer
iovecs[i].Base = &packets[pktIdx][0]
iovecs[i].Len = uint(len(packets[pktIdx]))
// Setup the destination address
rsa := (*unix.RawSockaddrInet4)(unsafe.Pointer(&names[i][0]))
rsa.Family = unix.AF_INET
rsa.Addr = addrs[pktIdx].Addr().As4()
binary.BigEndian.PutUint16((*[2]byte)(unsafe.Pointer(&rsa.Port))[:], addrs[pktIdx].Port())
// Set the appropriate address length for IPv4
msgs[i].Hdr.Namelen = unix.SizeofSockaddrInet4
}
// Send this batch
nsent, _, err := unix.Syscall6(
unix.SYS_SENDMMSG,
uintptr(u.sysFd),
uintptr(unsafe.Pointer(&msgs[0])),
uintptr(batchSize),
0,
0,
0,
)
if err != 0 {
return sent + int(nsent), &net.OpError{Op: "sendmmsg", Err: err}
}
sent += int(nsent)
if int(nsent) < batchSize {
// Couldn't send all packets in batch, return what we sent
return sent, nil
}
}
return sent, nil
}
func (u *StdConn) writeMulti6(packets [][]byte, addrs []netip.AddrPort) (int, error) {
sent := 0
for sent < len(packets) {
// Determine batch size based on remaining packets and buffer capacity
batchSize := len(packets) - sent
if batchSize > len(u.writeMsgs) {
batchSize = len(u.writeMsgs)
}
// Use pre-allocated buffers
msgs := u.writeMsgs[:batchSize]
iovecs := u.writeIovecs[:batchSize]
names := u.writeNames[:batchSize]
// Setup message structures for this batch
for i := 0; i < batchSize; i++ {
pktIdx := sent + i
// Setup the packet buffer
iovecs[i].Base = &packets[pktIdx][0]
iovecs[i].Len = uint(len(packets[pktIdx]))
// Setup the destination address
rsa := (*unix.RawSockaddrInet6)(unsafe.Pointer(&names[i][0]))
rsa.Family = unix.AF_INET6
rsa.Addr = addrs[pktIdx].Addr().As16()
binary.BigEndian.PutUint16((*[2]byte)(unsafe.Pointer(&rsa.Port))[:], addrs[pktIdx].Port())
// Set the appropriate address length for IPv6
msgs[i].Hdr.Namelen = unix.SizeofSockaddrInet6
}
// Send this batch
nsent, _, err := unix.Syscall6(
unix.SYS_SENDMMSG,
uintptr(u.sysFd),
uintptr(unsafe.Pointer(&msgs[0])),
uintptr(batchSize),
0,
0,
0,
)
if err != 0 {
return sent + int(nsent), &net.OpError{Op: "sendmmsg", Err: err}
}
sent += int(nsent)
if int(nsent) < batchSize {
// Couldn't send all packets in batch, return what we sent
return sent, nil
}
}
return sent, nil
}
func (u *StdConn) ReloadConfig(c *config.C) {
b := c.GetInt("listen.read_buffer", 0)
if b > 0 {
@@ -475,10 +309,6 @@ func (u *StdConn) getMemInfo(meminfo *[unix.SK_MEMINFO_VARS]uint32) error {
return nil
}
func (u *StdConn) BatchSize() int {
return u.batch
}
func (u *StdConn) Close() error {
return syscall.Close(u.sysFd)
}
+2 -2
View File
@@ -12,7 +12,7 @@ import (
type iovec struct {
Base *byte
Len uint
Len uint32
}
type msghdr struct {
@@ -40,7 +40,7 @@ func (u *StdConn) PrepareRawMessages(n int) ([]rawMessage, [][]byte, [][]byte) {
names[i] = make([]byte, unix.SizeofSockaddrInet6)
vs := []iovec{
{Base: &buffers[i][0], Len: uint(len(buffers[i]))},
{Base: &buffers[i][0], Len: uint32(len(buffers[i]))},
}
msgs[i].Hdr.Iov = &vs[0]
+2 -2
View File
@@ -12,7 +12,7 @@ import (
type iovec struct {
Base *byte
Len uint
Len uint64
}
type msghdr struct {
@@ -43,7 +43,7 @@ func (u *StdConn) PrepareRawMessages(n int) ([]rawMessage, [][]byte, [][]byte) {
names[i] = make([]byte, unix.SizeofSockaddrInet6)
vs := []iovec{
{Base: &buffers[i][0], Len: uint(len(buffers[i]))},
{Base: &buffers[i][0], Len: uint64(len(buffers[i]))},
}
msgs[i].Hdr.Iov = &vs[0]
+10 -67
View File
@@ -14,7 +14,6 @@ import (
"sync"
"sync/atomic"
"syscall"
"time"
"unsafe"
"github.com/sirupsen/logrus"
@@ -67,7 +66,7 @@ func NewRIOListener(l *logrus.Logger, addr netip.Addr, port int) (*RIOConn, erro
u := &RIOConn{l: l}
err := u.bind(l, &windows.SockaddrInet6{Addr: addr.As16(), Port: port})
err := u.bind(&windows.SockaddrInet6{Addr: addr.As16(), Port: port})
if err != nil {
return nil, fmt.Errorf("bind: %w", err)
}
@@ -83,11 +82,11 @@ func NewRIOListener(l *logrus.Logger, addr netip.Addr, port int) (*RIOConn, erro
return u, nil
}
func (u *RIOConn) bind(l *logrus.Logger, sa windows.Sockaddr) error {
func (u *RIOConn) bind(sa windows.Sockaddr) error {
var err error
u.sock, err = winrio.Socket(windows.AF_INET6, windows.SOCK_DGRAM, windows.IPPROTO_UDP)
if err != nil {
return fmt.Errorf("winrio.Socket error: %w", err)
return err
}
// Enable v4 for this socket
@@ -101,40 +100,35 @@ func (u *RIOConn) bind(l *logrus.Logger, sa windows.Sockaddr) error {
size := uint32(unsafe.Sizeof(flag))
err = syscall.WSAIoctl(syscall.Handle(u.sock), syscall.SIO_UDP_CONNRESET, (*byte)(unsafe.Pointer(&flag)), size, nil, 0, &ret, nil, 0)
if err != nil {
// This is a best-effort to prevent errors from being returned by the udp recv operation.
// Quietly log a failure and continue.
l.WithError(err).Debug("failed to set UDP_CONNRESET ioctl")
return err
}
ret = 0
flag = 0
size = uint32(unsafe.Sizeof(flag))
SIO_UDP_NETRESET := uint32(syscall.IOC_IN | syscall.IOC_VENDOR | 15)
err = syscall.WSAIoctl(syscall.Handle(u.sock), SIO_UDP_NETRESET, (*byte)(unsafe.Pointer(&flag)), size, nil, 0, &ret, nil, 0)
if err != nil {
// This is a best-effort to prevent errors from being returned by the udp recv operation.
// Quietly log a failure and continue.
l.WithError(err).Debug("failed to set UDP_NETRESET ioctl")
return err
}
err = u.rx.Open()
if err != nil {
return fmt.Errorf("error rx.Open(): %w", err)
return err
}
err = u.tx.Open()
if err != nil {
return fmt.Errorf("error tx.Open(): %w", err)
return err
}
u.rq, err = winrio.CreateRequestQueue(u.sock, packetsPerRing, 1, packetsPerRing, 1, u.rx.cq, u.tx.cq, 0)
if err != nil {
return fmt.Errorf("error CreateRequestQueue: %w", err)
return err
}
err = windows.Bind(u.sock, sa)
if err != nil {
return fmt.Errorf("error windows.Bind(): %w", err)
return err
}
return nil
@@ -143,22 +137,15 @@ func (u *RIOConn) bind(l *logrus.Logger, sa windows.Sockaddr) error {
func (u *RIOConn) ListenOut(r EncReader) {
buffer := make([]byte, MTU)
var lastRecvErr time.Time
for {
// Just read one packet at a time
n, rua, err := u.receive(buffer)
if err != nil {
if errors.Is(err, net.ErrClosed) {
u.l.WithError(err).Debug("udp socket is closed, exiting read loop")
return
}
// Dampen unexpected message warns to once per minute
if lastRecvErr.IsZero() || time.Since(lastRecvErr) > time.Minute {
lastRecvErr = time.Now()
u.l.WithError(err).Warn("unexpected udp socket receive error")
}
u.l.WithError(err).Error("unexpected udp socket receive error")
continue
}
@@ -338,50 +325,6 @@ func (u *RIOConn) Rebind() error {
func (u *RIOConn) ReloadConfig(*config.C) {}
// BatchSize returns 1 since RIO reads packets one at a time
func (u *RIOConn) BatchSize() int {
return 1
}
// ListenOutBatch - fallback to single-packet reads for RIO
func (u *RIOConn) ListenOutBatch(r EncBatchReader) {
buffer := make([]byte, MTU)
addrs := make([]netip.AddrPort, 1)
payloads := make([][]byte, 1)
var lastRecvErr time.Time
for {
n, rua, err := u.receive(buffer)
if err != nil {
if errors.Is(err, net.ErrClosed) {
u.l.WithError(err).Debug("udp socket is closed, exiting read loop")
return
}
if lastRecvErr.IsZero() || time.Since(lastRecvErr) > time.Minute {
lastRecvErr = time.Now()
u.l.WithError(err).Warn("unexpected udp socket receive error")
}
continue
}
addrs[0] = netip.AddrPortFrom(netip.AddrFrom16(rua.Addr).Unmap(), (rua.Port>>8)|((rua.Port&0xff)<<8))
payloads[0] = buffer[:n]
r(addrs, payloads, 1)
}
}
// WriteMulti sends multiple packets - fallback implementation
func (u *RIOConn) WriteMulti(packets [][]byte, addrs []netip.AddrPort) (int, error) {
for i := range packets {
err := u.WriteTo(packets[i], addrs[i])
if err != nil {
return i, err
}
}
return len(packets), nil
}
func (u *RIOConn) Close() error {
if !u.isOpen.CompareAndSwap(true, false) {
return nil
-29
View File
@@ -116,31 +116,6 @@ func (u *TesterConn) ListenOut(r EncReader) {
}
}
func (u *TesterConn) ListenOutBatch(r EncBatchReader) {
addrs := make([]netip.AddrPort, 1)
payloads := make([][]byte, 1)
for {
p, ok := <-u.RxPackets
if !ok {
return
}
addrs[0] = p.From
payloads[0] = p.Data
r(addrs, payloads, 1)
}
}
func (u *TesterConn) WriteMulti(packets [][]byte, addrs []netip.AddrPort) (int, error) {
for i := range packets {
err := u.WriteTo(packets[i], addrs[i])
if err != nil {
return i, err
}
}
return len(packets), nil
}
func (u *TesterConn) ReloadConfig(*config.C) {}
func NewUDPStatsEmitter(_ []Conn) func() {
@@ -156,10 +131,6 @@ func (u *TesterConn) SupportsMultipleReaders() bool {
return false
}
func (u *TesterConn) BatchSize() int {
return 1
}
func (u *TesterConn) Rebind() error {
return nil
}