世界
6a4ae5263e
Both the existing darwin backend and the upcoming windows backend drive USB devices from user space (IOUSBHost CGO calls vs. VBoxUSB IOCTLs). Refactor the per-attachment URB loop out of host_darwin.go into a platform-agnostic userspaceURBSession that talks to a URBEngine interface; the darwin-specific dispatch becomes a 30-line darwinIOUSBHostEngine. Linux's kernelHandoffSession is untouched. Move hex8 into shared.go and add usbipStatusEIO so the shared session does not depend on golang.org/x/sys/unix (Windows has no equivalent).
66 lines
1.2 KiB
Go
66 lines
1.2 KiB
Go
//go:build linux || (darwin && cgo)
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package usbip
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import (
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"context"
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"fmt"
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"net"
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"strings"
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"time"
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"github.com/sagernet/sing-box/option"
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)
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type clientTarget struct {
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fixedBusID string
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match option.USBIPDeviceMatch
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}
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func sleepCtx(ctx context.Context, d time.Duration) bool {
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t := time.NewTimer(d)
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defer t.Stop()
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select {
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case <-ctx.Done():
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return false
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case <-t.C:
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return true
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}
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}
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func closeConnOnContextDone(ctx context.Context, conn net.Conn) func() {
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done := make(chan struct{})
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go func() {
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select {
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case <-ctx.Done():
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_ = conn.Close()
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case <-done:
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}
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}()
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return func() {
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close(done)
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}
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}
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func hex8(v uint8) string {
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const hexdigits = "0123456789abcdef"
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return string([]byte{hexdigits[(v>>4)&0xf], hexdigits[v&0xf]})
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}
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func describeMatch(m option.USBIPDeviceMatch) string {
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var parts []string
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if m.BusID != "" {
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parts = append(parts, "busid="+m.BusID)
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}
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if m.VendorID != 0 {
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parts = append(parts, fmt.Sprintf("vendor_id=0x%04x", uint16(m.VendorID)))
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}
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if m.ProductID != 0 {
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parts = append(parts, fmt.Sprintf("product_id=0x%04x", uint16(m.ProductID)))
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}
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if m.Serial != "" {
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parts = append(parts, "serial="+m.Serial)
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}
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return "{" + strings.Join(parts, ",") + "}"
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}
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