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fix(nftables): harden traffic accounting edges

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This commit is contained in:
sagitchu
2026-06-06 23:07:59 +08:00
committed by sagit
parent 7ab0db29ae
commit 3ce320da5a
7 changed files with 179 additions and 20 deletions
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go-backend/internal/http/handler/mutations.go
+36 -10
View File
@@ -2412,23 +2412,30 @@ func (h *Handler) forwardDelete(w http.ResponseWriter, r *http.Request) {
response.WriteJSON(w, response.Err(-2, err.Error()))
return
}
if err := h.controlForwardServices(forward, "DeleteService", true); err != nil {
response.WriteJSON(w, response.ErrDefault(err.Error()))
return
}
var nftNodeID int64
if nftMode, entryNodeIDs, modeErr := h.tunnelUsesNftables(forward.TunnelID); modeErr != nil {
response.WriteJSON(w, response.Err(-2, modeErr.Error()))
return
} else if nftMode && len(entryNodeIDs) > 0 {
if err := h.reconcileNftablesNodeByRequest(entryNodeIDs[0]); err != nil {
response.WriteJSON(w, response.ErrDefault(err.Error()))
} else if nftMode {
if len(entryNodeIDs) == 0 {
response.WriteJSON(w, response.ErrDefault("nftables 转发缺少入口节点"))
return
}
nftNodeID = entryNodeIDs[0]
} else if err := h.controlForwardServices(forward, "DeleteService", true); err != nil {
response.WriteJSON(w, response.ErrDefault(err.Error()))
return
}
if err := h.deleteForwardByID(id); err != nil {
response.WriteJSON(w, response.Err(-2, err.Error()))
return
}
if nftNodeID > 0 {
if err := h.reconcileNftablesNodeByRequest(nftNodeID); err != nil {
response.WriteJSON(w, response.ErrDefault(err.Error()))
return
}
}
response.WriteJSON(w, response.OKEmpty())
}
@@ -2577,7 +2584,19 @@ func (h *Handler) forwardBatchDelete(w http.ResponseWriter, r *http.Request) {
failures = appendBatchFailure(failures, id, "", accessErr)
continue
}
if err := h.controlForwardServices(forward, "DeleteService", true); err != nil {
var nftNodeID int64
if nftMode, entryNodeIDs, modeErr := h.tunnelUsesNftables(forward.TunnelID); modeErr != nil {
f++
failures = appendBatchFailure(failures, id, forward.Name, modeErr)
continue
} else if nftMode {
if len(entryNodeIDs) == 0 {
f++
failures = appendBatchFailureReason(failures, id, forward.Name, "nftables 转发缺少入口节点")
continue
}
nftNodeID = entryNodeIDs[0]
} else if err := h.controlForwardServices(forward, "DeleteService", true); err != nil {
f++
failures = appendBatchFailure(failures, id, forward.Name, err)
continue
@@ -2585,9 +2604,16 @@ func (h *Handler) forwardBatchDelete(w http.ResponseWriter, r *http.Request) {
if err := h.deleteForwardByID(id); err != nil {
f++
failures = appendBatchFailure(failures, id, forward.Name, err)
} else {
s++
continue
}
if nftNodeID > 0 {
if err := h.reconcileNftablesNodeByRequest(nftNodeID); err != nil {
f++
failures = appendBatchFailure(failures, id, forward.Name, err)
continue
}
}
s++
}
response.WriteJSON(w, response.OK(batchOperationResult{SuccessCount: s, FailCount: f, Failures: failures}))
}
go-backend/internal/http/handler/nftables_runtime.go
+6 -1
View File
@@ -5,6 +5,7 @@ import (
"database/sql"
"errors"
"fmt"
"net"
"net/http"
"strings"
"time"
@@ -78,9 +79,13 @@ func (h *Handler) validateNftablesForwardRequest(tunnel *tunnelRecord, remoteAdd
if len(entryNodeIDs) != 1 {
return errors.New("nftables 节点仅支持单入口隧道")
}
if _, err := runtimenft.ParseSingleTarget(remoteAddr); err != nil {
target, err := runtimenft.ParseSingleTarget(remoteAddr)
if err != nil {
return err
}
if net.ParseIP(strings.Trim(strings.TrimSpace(target.Host), "[]")) == nil {
return errors.New("nftables 节点仅支持 IP 目标地址")
}
return nil
}
go-backend/internal/http/handler/nftables_runtime_test.go
+66
View File
@@ -280,6 +280,48 @@ func TestNodeUpdatePreservesExistingNftablesSecretsWhenFieldsOmitted(t *testing.
}
}
func TestValidateNftablesForwardRequestRejectsHostnameTarget(t *testing.T) {
fixture := setupNftablesHandler(t)
h := fixture.handler
tunnelID := seedTunnelForNftables(t, h, "nft-tunnel", fixture.nodeID)
tunnel, err := h.getTunnelRecord(tunnelID)
if err != nil {
t.Fatalf("load tunnel: %v", err)
}
err = h.validateNftablesForwardRequest(tunnel, "example.com:443", []int64{fixture.nodeID})
if err == nil {
t.Fatalf("expected hostname target to be rejected")
}
if !strings.Contains(err.Error(), "IP") {
t.Fatalf("expected IP literal validation error, got %q", err)
}
}
func TestForwardDeleteReconcilesNftablesAfterDBDelete(t *testing.T) {
fixture := setupNftablesHandler(t)
h := fixture.handler
seedNftablesSSHConfig(t, h, fixture.nodeID)
tunnelID := seedTunnelForNftables(t, h, "nft-tunnel", fixture.nodeID)
forward := seedForwardForNftables(t, h, tunnelID, fixture.nodeID, "203.0.113.9:8080")
manager := &fakeNftablesManager{}
h.nftablesManager = manager
req := newAuthenticatedJSONRequest(t, map[string]int64{"id": forward.ID})
res := httptest.NewRecorder()
h.forwardDelete(res, req)
assertNftablesSuccessWithBody(t, res)
if manager.reconcileHit != 1 {
t.Fatalf("expected reconcile once, got %d", manager.reconcileHit)
}
if len(manager.lastPlan.Rules) != 0 {
t.Fatalf("expected reconcile after DB delete to render no rules, got %+v", manager.lastPlan.Rules)
}
if _, err := h.getForwardRecord(forward.ID); !errors.Is(err, errForwardNotFound) {
t.Fatalf("expected forward to be deleted, got %v", err)
}
}
func TestForwardForceDeleteRemovesNftablesBindingAndReconciles(t *testing.T) {
fixture := setupNftablesHandler(t)
h := fixture.handler
@@ -319,6 +361,30 @@ func TestForwardForceDeleteRemovesNftablesBindingAndReconciles(t *testing.T) {
}
}
func TestForwardBatchDeleteReconcilesNftablesAfterDBDelete(t *testing.T) {
fixture := setupNftablesHandler(t)
h := fixture.handler
seedNftablesSSHConfig(t, h, fixture.nodeID)
tunnelID := seedTunnelForNftables(t, h, "nft-tunnel", fixture.nodeID)
forward := seedForwardForNftables(t, h, tunnelID, fixture.nodeID, "203.0.113.9:8080")
manager := &fakeNftablesManager{}
h.nftablesManager = manager
req := newAuthenticatedJSONRequest(t, map[string][]int64{"ids": {forward.ID}})
res := httptest.NewRecorder()
h.forwardBatchDelete(res, req)
assertNftablesSuccessWithBody(t, res)
if manager.reconcileHit != 1 {
t.Fatalf("expected reconcile once, got %d", manager.reconcileHit)
}
if len(manager.lastPlan.Rules) != 0 {
t.Fatalf("expected reconcile after DB delete to render no rules, got %+v", manager.lastPlan.Rules)
}
if _, err := h.getForwardRecord(forward.ID); !errors.Is(err, errForwardNotFound) {
t.Fatalf("expected forward to be deleted, got %v", err)
}
}
func TestForwardBatchRedeployUsesNftablesReconcile(t *testing.T) {
fixture := setupNftablesHandler(t)
h := fixture.handler