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Add route exclude support

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世界 2023-10-30 14:50:33 +08:00
parent 958d6a25a4
commit 3fa4ee409a
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GPG key ID: CD109927C34A63C4
7 changed files with 142 additions and 134 deletions
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78
tun_linux.go
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@ -188,57 +188,25 @@ func (t *NativeTun) Close() error {
return E.Errors(t.unsetRoute(), t.unsetRules(), common.Close(common.PtrOrNil(t.tunFile)))
}
func (t *NativeTun) routes(tunLink netlink.Link) []netlink.Route {
var routes []netlink.Route
if len(t.options.Inet4Address) > 0 {
if t.options.AutoRoute {
if len(t.options.Inet4RouteAddress) > 0 {
for _, addr := range t.options.Inet4RouteAddress {
routes = append(routes, netlink.Route{
Dst: &net.IPNet{
IP: addr.Addr().AsSlice(),
Mask: net.CIDRMask(addr.Bits(), 32),
},
LinkIndex: tunLink.Attrs().Index,
Table: t.options.TableIndex,
})
}
} else {
routes = append(routes, netlink.Route{
Dst: &net.IPNet{
IP: net.IPv4zero,
Mask: net.CIDRMask(0, 32),
},
LinkIndex: tunLink.Attrs().Index,
Table: t.options.TableIndex,
})
}
}
func prefixToIPNet(prefix netip.Prefix) *net.IPNet {
return &net.IPNet{
IP: prefix.Addr().AsSlice(),
Mask: net.CIDRMask(prefix.Bits(), prefix.Addr().BitLen()),
}
if len(t.options.Inet6Address) > 0 {
if len(t.options.Inet6RouteAddress) > 0 {
for _, addr := range t.options.Inet6RouteAddress {
routes = append(routes, netlink.Route{
Dst: &net.IPNet{
IP: addr.Addr().AsSlice(),
Mask: net.CIDRMask(addr.Bits(), 128),
},
LinkIndex: tunLink.Attrs().Index,
Table: t.options.TableIndex,
})
}
} else {
routes = append(routes, netlink.Route{
Dst: &net.IPNet{
IP: net.IPv6zero,
Mask: net.CIDRMask(0, 128),
},
LinkIndex: tunLink.Attrs().Index,
Table: t.options.TableIndex,
})
}
}
func (t *NativeTun) routes(tunLink netlink.Link) ([]netlink.Route, error) {
routeRanges, err := t.options.BuildAutoRouteRanges(false)
if err != nil {
return nil, err
}
return routes
return common.Map(routeRanges, func(it netip.Prefix) netlink.Route {
return netlink.Route{
Dst: prefixToIPNet(it),
LinkIndex: tunLink.Attrs().Index,
Table: t.options.TableIndex,
}
}), nil
}
const (
@ -626,7 +594,11 @@ func (t *NativeTun) rules() []*netlink.Rule {
}
func (t *NativeTun) setRoute(tunLink netlink.Link) error {
for i, route := range t.routes(tunLink) {
routes, err := t.routes(tunLink)
if err != nil {
return err
}
for i, route := range routes {
err := netlink.RouteAdd(&route)
if err != nil {
return E.Cause(err, "add route ", i)
@ -657,8 +629,10 @@ func (t *NativeTun) unsetRoute() error {
}
func (t *NativeTun) unsetRoute0(tunLink netlink.Link) error {
for _, route := range t.routes(tunLink) {
_ = netlink.RouteDel(&route)
if routes, err := t.routes(tunLink); err == nil {
for _, route := range routes {
_ = netlink.RouteDel(&route)
}
}
return nil
}