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This commit is contained in:
Wade Simmons
2026-09-01 13:01:40 -04:00
parent ae0fa0f2af
commit 7316283e0d
73 changed files with 73 additions and 144 deletions
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overlay/tio/blockon_linux.go
-1
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@@ -1,5 +1,4 @@
//go:build linux && !android
// +build linux,!android
package tio
overlay/tio/queueset_gso_linux.go
-1
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@@ -1,5 +1,4 @@
//go:build linux && !android
// +build linux,!android
package tio
overlay/tio/queueset_poll_linux.go
-1
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@@ -1,5 +1,4 @@
//go:build linux && !android
// +build linux,!android
package tio
overlay/tio/tio_gso_linux.go
-1
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@@ -1,5 +1,4 @@
//go:build linux && !android
// +build linux,!android
package tio
overlay/tio/tio_poll_linux.go
-1
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@@ -1,5 +1,4 @@
//go:build linux && !android
// +build linux,!android
package tio
overlay/tio/tun_file_linux_test.go
+4 -7
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@@ -1,5 +1,4 @@
//go:build linux && !android && !e2e_testing
// +build linux,!android,!e2e_testing
package tio
@@ -117,17 +116,15 @@ func TestPoll_ConcurrentWrite_NoRace(t *testing.T) {
}()
var wg sync.WaitGroup
for w := 0; w < writers; w++ {
wg.Add(1)
go func() {
defer wg.Done()
for i := 0; i < perWriter; i++ {
for range writers {
wg.Go(func() {
for range perWriter {
if _, werr := p.Write(payload); werr != nil {
t.Errorf("write: %v", werr)
return
}
}
}()
})
}
wg.Wait()
overlay/tio/tun_linux_offload.go
-1
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@@ -1,5 +1,4 @@
//go:build linux && !android
// +build linux,!android
package tio
overlay/tio/tun_linux_offload_test.go
+5 -6
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@@ -1,5 +1,4 @@
//go:build linux && !android && !e2e_testing
// +build linux,!android,!e2e_testing
package tio
@@ -137,7 +136,7 @@ func buildTSOv4(t *testing.T, payLen, mss int) ([]byte, virtio.Hdr) {
binary.BigEndian.PutUint16(pkt[34:36], 65535) // window
// payload
for i := 0; i < payLen; i++ {
for i := range payLen {
pkt[ipLen+tcpLen+i] = byte(i & 0xff)
}
return pkt, virtio.NewHeader(
@@ -257,7 +256,7 @@ func TestSegmentTCPv6(t *testing.T) {
pkt[53] = 0x19 // FIN | ACK | PSH — exercise FIN clearing too
binary.BigEndian.PutUint16(pkt[54:56], 65535)
for i := 0; i < payLen; i++ {
for i := range payLen {
pkt[ipLen+tcpLen+i] = byte(i)
}
@@ -361,7 +360,7 @@ func buildUSOv4(t *testing.T, payLen, gsoSize int) ([]byte, virtio.Hdr) {
binary.BigEndian.PutUint16(pkt[22:24], 53) // dport
binary.BigEndian.PutUint16(pkt[24:26], uint16(udpLen+payLen)) // superpacket length
for i := 0; i < payLen; i++ {
for i := range payLen {
pkt[ipLen+udpLen+i] = byte(i & 0xff)
}
@@ -473,7 +472,7 @@ func TestSegmentUDPv6(t *testing.T) {
// Superpacket-wide length, as the kernel supplies it; see buildUSOv4.
binary.BigEndian.PutUint16(pkt[44:46], uint16(udpLen+payLen))
for i := 0; i < payLen; i++ {
for i := range payLen {
pkt[ipLen+udpLen+i] = byte(i)
}
@@ -772,7 +771,7 @@ func buildTSOv6(payLen, gso int) []byte {
pkt[53] = 0x10 // ACK only
binary.BigEndian.PutUint16(pkt[54:56], 65535)
for i := 0; i < payLen; i++ {
for i := range payLen {
pkt[ipLen+tcpLen+i] = byte(i)
}
return pkt
overlay/tio/virtio/header_linux.go
-1
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@@ -1,5 +1,4 @@
//go:build linux && !android
// +build linux,!android
package virtio
overlay/tio/virtio/segment_linux.go
+4 -11
View File
@@ -1,5 +1,4 @@
//go:build linux && !android
// +build linux,!android
// Package virtio implements the pure validation, header-correction, and
// per-segment slicing logic for kernel-supplied TSO/USO superpackets on
@@ -254,12 +253,9 @@ func SegmentTCP(pkt []byte, hdrLenU, csumStartU, gsoSizeU uint16, yield func(seg
var savedHdr [maxSegHdrLen]byte
copy(savedHdr[:headerLen], pkt[:headerLen])
for i := 0; i < numSeg; i++ {
for i := range numSeg {
segStart := i * gsoSize
segEnd := segStart + gsoSize
if segEnd > payLen {
segEnd = payLen
}
segEnd := min(segStart+gsoSize, payLen)
segPayLen := segEnd - segStart
segLen := headerLen + segPayLen
headerOff := i * gsoSize
@@ -359,12 +355,9 @@ func SegmentUDP(pkt []byte, hdrLenU, csumStartU, gsoSizeU uint16, yield func(seg
var savedHdr [maxSegHdrLen]byte
copy(savedHdr[:headerLen], pkt[:headerLen])
for i := 0; i < numSeg; i++ {
for i := range numSeg {
segStart := i * gsoSize
segEnd := segStart + gsoSize
if segEnd > payLen {
segEnd = payLen
}
segEnd := min(segStart+gsoSize, payLen)
segPayLen := segEnd - segStart
segLen := headerLen + segPayLen
headerOff := i * gsoSize
overlay/tio/virtio/segment_linux_test.go
+7 -8
View File
@@ -1,5 +1,4 @@
//go:build linux && !android
// +build linux,!android
package virtio
@@ -58,7 +57,7 @@ func buildTCPv4Super(payLen int) (pkt []byte, hdrLen, csumStart uint16) {
pkt[33] = 0x18 // ACK | PSH
binary.BigEndian.PutUint16(pkt[34:36], 65535) // window
for i := 0; i < payLen; i++ {
for i := range payLen {
pkt[ipLen+tcpLen+i] = byte(i & 0xff)
}
return pkt, ipLen + tcpLen, ipLen
@@ -82,7 +81,7 @@ func buildUDPv4Super(payLen int) (pkt []byte, hdrLen, csumStart uint16) {
binary.BigEndian.PutUint16(pkt[20:22], 12345) // sport
binary.BigEndian.PutUint16(pkt[22:24], 53) // dport
for i := 0; i < payLen; i++ {
for i := range payLen {
pkt[ipLen+udpLen+i] = byte(i & 0xff)
}
return pkt, ipLen + udpLen, ipLen
@@ -188,7 +187,7 @@ func TestSegmentTCPHeaderNotCorrupted(t *testing.T) {
// Payload bytes must be the original contiguous slice.
segPayLen := len(seg) - int(hdrLen)
wantPay := make([]byte, segPayLen)
for k := 0; k < segPayLen; k++ {
for k := range segPayLen {
wantPay[k] = byte((off + k) & 0xff)
}
if !bytes.Equal(seg[hdrLen:], wantPay) {
@@ -317,7 +316,7 @@ func TestSegmentUDPHeaderNotCorrupted(t *testing.T) {
}
wantPay := make([]byte, segPayLen)
for k := 0; k < segPayLen; k++ {
for k := range segPayLen {
wantPay[k] = byte((off + k) & 0xff)
}
if !bytes.Equal(seg[hdrLen:], wantPay) {
@@ -365,7 +364,7 @@ func buildUDPv4Single(payload []byte) (pkt []byte, hdr Hdr) {
// 0xffff, because all-zero is the reserved "no checksum" encoding that IPv6 rejects outright.
func TestFinishChecksumUDPZeroStoresAllOnes(t *testing.T) {
var payload []byte
for i := 0; i < 0x10000; i++ {
for i := range 0x10000 {
p := []byte{byte(i >> 8), byte(i)}
pkt, hdr := buildUDPv4Single(p)
cs, co := int(hdr.CsumStart), int(hdr.CsumOffset)
@@ -544,7 +543,7 @@ func TestBaseSumsMatchZeroingReference(t *testing.T) {
t.Run("ipv4", func(t *testing.T) {
for ihl := ipv4HeaderMinLen; ihl <= ipv4HeaderMaxLen; ihl += 4 {
for iter := 0; iter < 5000; iter++ {
for range 5000 {
pkt := make([]byte, ihl)
for i := range pkt {
pkt[i] = randByte(&state)
@@ -574,7 +573,7 @@ func TestBaseSumsMatchZeroingReference(t *testing.T) {
for dataOff := 5; dataOff <= 15; dataOff++ {
tcpLen := dataOff * 4
headerLen := csumStart + tcpLen
for iter := 0; iter < 5000; iter++ {
for range 5000 {
pkt := make([]byte, headerLen+64)
for i := range pkt {
pkt[i] = randByte(&state)