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GetIpInterfaceEntry Windows API fallback (just for testing).

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Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
This commit is contained in:
Aleksandar Pesic 2021-01-27 05:39:28 +01:00
parent 35e10c78fc
commit 0307927585
1 changed files with 54 additions and 1 deletions
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55
wgengine/router/ifconfig_windows.go
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@ -387,7 +387,10 @@ func configureInterface(cfg *Config, tun *tun.NativeTun) (retErr error) {
ipif, err := iface.LUID.IPInterface(windows.AF_INET)
if err != nil {
log.Printf("getipif: %v", err)
return err
ipif, _ = getIpInterfaceFallback(iface.LUID, windows.AF_INET)
if ipif == nil {
return err
}
}
if foundDefault4 {
ipif.UseAutomaticMetric = false
@ -701,3 +704,53 @@ func syncRoutes(ifc *winipcfg.IPAdapterAddresses, want []*winipcfg.RouteData) er
return multierror.New(errs)
}
func getIpInterfaceFallback(luid winipcfg.LUID, family winipcfg.AddressFamily) (*winipcfg.MibIPInterfaceRow, error) {
ifc, err := luid.Interface();
if err != nil {
log.Printf("getIpInterfaceFallback(%v, %v): luid.Interface() error: %v\n", luid, family, err)
} else if ifc == nil {
log.Printf("getIpInterfaceFallback(%v, %v): luid.Interface() returned nil.\n", luid, family)
}
im := make(map[winipcfg.LUID]string)
ifs, err := winipcfg.GetIfTable2Ex(winipcfg.MibIfEntryNormal)
if err != nil {
log.Printf("getIpInterfaceFallback(%v, %v): winipcfg.GetIfTable2Ex() error: %v\n", luid, family, err)
} else if ifs == nil {
log.Printf("getIpInterfaceFallback(%v, %v): winipcfg.GetIfTable2Ex() returned nil.\n", luid, family)
} else {
l := fmt.Sprintf("getIpInterfaceFallback(%v, %v): winipcfg.GetIfTable2Ex() returned %d items:\n", luid,
family, len(ifs))
for i := range ifs {
im[ifs[i].InterfaceLUID] = ifs[i].Alias()
l += fmt.Sprintf("%v: %s\n", ifs[i].InterfaceLUID, ifs[i].Alias())
}
log.Println(l)
}
rs, err := winipcfg.GetIPInterfaceTable(family);
if err != nil {
log.Printf("getIpInterfaceFallback(%v, %v): winipcfg.GetIPInterfaceTable() error: %v\n", luid, family, err)
return nil, err
}
if rs == nil {
log.Printf("getIpInterfaceFallback(%v, %v): winipcfg.GetIPInterfaceTable() returned nil.\n", luid, family)
return nil, fmt.Errorf("winipcfg.GetIPInterfaceTable returned nil")
}
l := fmt.Sprintf("getIpInterfaceFallback(%v, %v): winipcfg.GetIPInterfaceTable() returned %d items:\n", luid, family)
var r *winipcfg.MibIPInterfaceRow
for i := range rs {
l += fmt.Sprintf("%v: %s\n", rs[i].InterfaceLUID, im[rs[i].InterfaceLUID])
if rs[i].InterfaceLUID == luid {
l += "; FOUND!!!"
r = &rs[i]
}
l += "\n"
}
log.Println(l)
if r == nil {
log.Printf("getIpInterfaceFallback(%v, %v): IP interface not found.\n", luid, family)
return nil, fmt.Errorf("IP interface not found")
}
log.Printf("getIpInterfaceFallback(%v, %v): FOUND!\n", luid, family)
return r, nil
}