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[client] Gate IPv6 forwarding on overlay v6 and preserve host RA acceptance (#6221)

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This commit is contained in:
Viktor Liu
2026-08-12 16:07:00 +02:00
committed by GitHub
parent 52faa202b2
commit db9fcf39ef
15 changed files with 904 additions and 86 deletions
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client/internal/routemanager/sysctl/sysctl_linux.go
+8 -5
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@@ -58,11 +58,7 @@ func Setup(wgIface iface) (map[string]int, error) {
continue
}
// Escape '%' and '.' so they survive the dot-to-slash conversion in Set()
safeName := strings.ReplaceAll(intf.Name, "%", percentEscape)
safeName = strings.ReplaceAll(safeName, ".", dotEscape)
i := fmt.Sprintf(rpFilterInterfacePath, safeName)
i := fmt.Sprintf(rpFilterInterfacePath, EscapeInterfaceName(intf.Name))
oldVal, err := Set(i, 2, true)
if err != nil {
result = multierror.Append(result, err)
@@ -74,6 +70,13 @@ func Setup(wgIface iface) (map[string]int, error) {
return keys, nberrors.FormatErrorOrNil(result)
}
// EscapeInterfaceName escapes '%' and '.' in an interface name (e.g. VLANs
// like eth0.100) so the name survives the dot-to-slash conversion in Set.
func EscapeInterfaceName(name string) string {
safe := strings.ReplaceAll(name, "%", percentEscape)
return strings.ReplaceAll(safe, ".", dotEscape)
}
// Set sets a sysctl configuration, if onlyIfOne is true it will only set the new value if it's set to 1
func Set(key string, desiredValue int, onlyIfOne bool) (int, error) {
path := strings.ReplaceAll(key, ".", "/")