Upgrade preparation to verify sysctl values containing forward slashes by regex

pkg/apis/core/validation/validation_test.go

@@ -17765,13 +17765,35 @@ func TestIsValidSysctlName(t *testing.T) {
 			return string(x)
 		}(256),
 	}
+
+	containSlashesValid := []string{
+		"a/b/c/d",
+		"a/b.c",
+	}
+
+	containSlashesInvalid := []string{
+		"/",
+		"/a",
+		"a/abc*",
+		"a/b/*",
+	}
 	for _, s := range valid {
-		if !IsValidSysctlName(s) {
+		if !IsValidSysctlName(s, false) {
 			t.Errorf("%q expected to be a valid sysctl name", s)
 		}
 	}
 	for _, s := range invalid {
-		if IsValidSysctlName(s) {
+		if IsValidSysctlName(s, false) {
+			t.Errorf("%q expected to be an invalid sysctl name", s)
+		}
+	}
+	for _, s := range containSlashesValid {
+		if !IsValidSysctlName(s, true) {
+			t.Errorf("%q expected to be a valid sysctl name", s)
+		}
+	}
+	for _, s := range containSlashesInvalid {
+		if IsValidSysctlName(s, true) {
 			t.Errorf("%q expected to be an invalid sysctl name", s)
 		}
 	}
@@ -17792,11 +17814,16 @@ func TestValidateSysctls(t *testing.T) {
 		"kernel.shmmax",
 	}
 
+	containSlashes := []string{
+		"net.ipv4.conf.enp3s0/200.forwarding",
+		"net/ipv4/conf/enp3s0.200/forwarding",
+	}
+
 	sysctls := make([]core.Sysctl, len(valid))
 	for i, sysctl := range valid {
 		sysctls[i].Name = sysctl
 	}
-	errs := validateSysctls(sysctls, field.NewPath("foo"))
+	errs := validateSysctls(sysctls, field.NewPath("foo"), false)
 	if len(errs) != 0 {
 		t.Errorf("unexpected validation errors: %v", errs)
 	}
@@ -17805,7 +17832,7 @@ func TestValidateSysctls(t *testing.T) {
 	for i, sysctl := range invalid {
 		sysctls[i].Name = sysctl
 	}
-	errs = validateSysctls(sysctls, field.NewPath("foo"))
+	errs = validateSysctls(sysctls, field.NewPath("foo"), false)
 	if len(errs) != 2 {
 		t.Errorf("expected 2 validation errors. Got: %v", errs)
 	} else {
@@ -17821,12 +17848,21 @@ func TestValidateSysctls(t *testing.T) {
 	for i, sysctl := range duplicates {
 		sysctls[i].Name = sysctl
 	}
-	errs = validateSysctls(sysctls, field.NewPath("foo"))
+	errs = validateSysctls(sysctls, field.NewPath("foo"), false)
 	if len(errs) != 1 {
 		t.Errorf("unexpected validation errors: %v", errs)
 	} else if errs[0].Type != field.ErrorTypeDuplicate {
 		t.Errorf("expected error type %v, got %v", field.ErrorTypeDuplicate, errs[0].Type)
 	}
+
+	sysctls = make([]core.Sysctl, len(containSlashes))
+	for i, sysctl := range containSlashes {
+		sysctls[i].Name = sysctl
+	}
+	errs = validateSysctls(sysctls, field.NewPath("foo"), true)
+	if len(errs) != 0 {
+		t.Errorf("unexpected validation errors: %v", errs)
+	}
 }
 
 func newNodeNameEndpoint(nodeName string) *core.Endpoints {