-
Notifications
You must be signed in to change notification settings - Fork 438
/
security_group.go
445 lines (401 loc) · 12.3 KB
/
security_group.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
package controller
import (
"context"
"fmt"
"net"
"reflect"
"strings"
"github.com/cnf/structhash"
k8serrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
"k8s.io/client-go/tools/cache"
"k8s.io/klog/v2"
kubeovnv1 "github.com/kubeovn/kube-ovn/pkg/apis/kubeovn/v1"
"github.com/kubeovn/kube-ovn/pkg/ovs"
"github.com/kubeovn/kube-ovn/pkg/ovsdb/ovnnb"
"github.com/kubeovn/kube-ovn/pkg/util"
)
func (c *Controller) enqueueAddSg(obj interface{}) {
if !c.isLeader() {
return
}
var key string
var err error
if key, err = cache.MetaNamespaceKeyFunc(obj); err != nil {
utilruntime.HandleError(err)
return
}
klog.V(3).Infof("enqueue add securityGroup %s", key)
c.addOrUpdateSgQueue.Add(key)
}
func (c *Controller) enqueueUpdateSg(old, new interface{}) {
if !c.isLeader() {
return
}
oldSg := old.(*kubeovnv1.SecurityGroup)
newSg := new.(*kubeovnv1.SecurityGroup)
if !reflect.DeepEqual(oldSg.Spec, newSg.Spec) {
var key string
var err error
if key, err = cache.MetaNamespaceKeyFunc(new); err != nil {
utilruntime.HandleError(err)
return
}
klog.V(3).Infof("enqueue update securityGroup %s", key)
c.addOrUpdateSgQueue.Add(key)
}
}
func (c *Controller) enqueueDeleteSg(obj interface{}) {
if !c.isLeader() {
return
}
var key string
var err error
if key, err = cache.MetaNamespaceKeyFunc(obj); err != nil {
utilruntime.HandleError(err)
return
}
klog.V(3).Infof("enqueue delete securityGroup %s", key)
c.delSgQueue.Add(key)
}
func (c *Controller) runAddSgWorker() {
for c.processNextAddOrUpdateSgWorkItem() {
}
}
func (c *Controller) runDelSgWorker() {
for c.processNextDeleteSgWorkItem() {
}
}
func (c *Controller) runSyncSgPortsWorker() {
for c.processNextSyncSgPortsWorkItem() {
}
}
func (c *Controller) processNextSyncSgPortsWorkItem() bool {
obj, shutdown := c.syncSgPortsQueue.Get()
if shutdown {
return false
}
err := func(obj interface{}) error {
defer c.syncSgPortsQueue.Done(obj)
var key string
var ok bool
if key, ok = obj.(string); !ok {
c.syncSgPortsQueue.Forget(obj)
utilruntime.HandleError(fmt.Errorf("expected string in workqueue but got %#v", obj))
return nil
}
if err := c.syncSgLogicalPort(key); err != nil {
c.syncSgPortsQueue.AddRateLimited(key)
return fmt.Errorf("error syncing '%s': %s, requeuing", key, err.Error())
}
c.syncSgPortsQueue.Forget(obj)
return nil
}(obj)
if err != nil {
utilruntime.HandleError(err)
return true
}
return true
}
func (c *Controller) processNextAddOrUpdateSgWorkItem() bool {
obj, shutdown := c.addOrUpdateSgQueue.Get()
if shutdown {
return false
}
err := func(obj interface{}) error {
defer c.addOrUpdateSgQueue.Done(obj)
var key string
var ok bool
if key, ok = obj.(string); !ok {
c.addOrUpdateSgQueue.Forget(obj)
utilruntime.HandleError(fmt.Errorf("expected string in workqueue but got %#v", obj))
return nil
}
if err := c.handleAddOrUpdateSg(key); err != nil {
c.addOrUpdateSgQueue.AddRateLimited(key)
return fmt.Errorf("error syncing '%s': %s, requeuing", key, err.Error())
}
c.addOrUpdateSgQueue.Forget(obj)
return nil
}(obj)
if err != nil {
utilruntime.HandleError(err)
return true
}
return true
}
func (c *Controller) processNextDeleteSgWorkItem() bool {
obj, shutdown := c.delSgQueue.Get()
if shutdown {
return false
}
err := func(obj interface{}) error {
defer c.delSgQueue.Done(obj)
var key string
var ok bool
if key, ok = obj.(string); !ok {
c.delSgQueue.Forget(obj)
utilruntime.HandleError(fmt.Errorf("expected string in workqueue but got %#v", obj))
return nil
}
if err := c.handleDeleteSg(key); err != nil {
c.delSgQueue.AddRateLimited(key)
return fmt.Errorf("error syncing '%s': %s, requeuing", key, err.Error())
}
c.delSgQueue.Forget(obj)
return nil
}(obj)
if err != nil {
utilruntime.HandleError(err)
return true
}
return true
}
func (c *Controller) initDenyAllSecurityGroup() error {
if err := c.ovnLegacyClient.CreateSgPortGroup(util.DenyAllSecurityGroup); err != nil {
return err
}
if err := c.ovnLegacyClient.CreateSgDenyAllACL(); err != nil {
return err
}
c.addOrUpdateSgQueue.Add(util.DenyAllSecurityGroup)
return nil
}
func (c *Controller) updateDenyAllSgPorts() error {
results, err := c.ovnLegacyClient.CustomFindEntity("logical_switch_port", []string{"_uuid", "name", "port_security"}, "external_ids:security_groups!=\"\"")
if err != nil {
klog.Errorf("failed to find logical port, %v", err)
return err
}
var ports []string
for _, ret := range results {
if len(ret["port_security"]) < 2 {
continue
}
ports = append(ports, ret["name"][0])
}
return c.ovnLegacyClient.SetPortsToPortGroup(ovs.GetSgPortGroupName(util.DenyAllSecurityGroup), ports)
}
func (c *Controller) handleAddOrUpdateSg(key string) error {
c.sgKeyMutex.Lock(key)
defer c.sgKeyMutex.Unlock(key)
// set 'deny all' for port associated with security group
if key == util.DenyAllSecurityGroup {
if err := c.updateDenyAllSgPorts(); err != nil {
klog.Errorf("update sg deny all policy failed. %v", err)
return err
}
}
orisg, err := c.sgsLister.Get(key)
if err != nil {
if k8serrors.IsNotFound(err) {
return nil
}
return err
}
sg := orisg.DeepCopy()
if err = c.validateSgRule(sg); err != nil {
return err
}
if err = c.ovnLegacyClient.CreateSgPortGroup(sg.Name); err != nil {
return fmt.Errorf("failed to create sg port_group %s, %v", key, err.Error())
}
if err = c.ovnLegacyClient.CreateSgAssociatedAddressSet(sg.Name); err != nil {
return fmt.Errorf("failed to create sg associated address_set %s, %v", key, err.Error())
}
ingressNeedUpdate := false
egressNeedUpdate := false
// check md5
newIngressMd5 := fmt.Sprintf("%x", structhash.Md5(sg.Spec.IngressRules, 1))
if !sg.Status.IngressLastSyncSuccess || newIngressMd5 != sg.Status.IngressMd5 {
klog.Infof("ingress need update, sg:%s", sg.Name)
ingressNeedUpdate = true
}
newEgressMd5 := fmt.Sprintf("%x", structhash.Md5(sg.Spec.EgressRules, 1))
if !sg.Status.EgressLastSyncSuccess || newEgressMd5 != sg.Status.EgressMd5 {
klog.Infof("egress need update, sg:%s", sg.Name)
egressNeedUpdate = true
}
// check allowSameGroupTraffic switch
if sg.Status.AllowSameGroupTraffic != sg.Spec.AllowSameGroupTraffic {
klog.Infof("both ingress && egress need update, sg:%s", sg.Name)
ingressNeedUpdate = true
egressNeedUpdate = true
}
// update sg rule
if ingressNeedUpdate {
if err = c.ovnLegacyClient.UpdateSgACL(sg, ovs.SgAclIngressDirection); err != nil {
sg.Status.IngressLastSyncSuccess = false
c.patchSgStatus(sg)
return err
}
sg.Status.IngressMd5 = newIngressMd5
sg.Status.IngressLastSyncSuccess = true
c.patchSgStatus(sg)
}
if egressNeedUpdate {
if err = c.ovnLegacyClient.UpdateSgACL(sg, ovs.SgAclEgressDirection); err != nil {
sg.Status.EgressLastSyncSuccess = false
c.patchSgStatus(sg)
return err
}
sg.Status.EgressMd5 = newEgressMd5
sg.Status.EgressLastSyncSuccess = true
c.patchSgStatus(sg)
}
// update status
sg.Status.PortGroup = ovs.GetSgPortGroupName(sg.Name)
sg.Status.AllowSameGroupTraffic = sg.Spec.AllowSameGroupTraffic
c.patchSgStatus(sg)
c.syncSgPortsQueue.Add(key)
return nil
}
func (c *Controller) validateSgRule(sg *kubeovnv1.SecurityGroup) error {
// check sg rules
allRules := append(sg.Spec.IngressRules, sg.Spec.EgressRules...)
for _, rule := range allRules {
if rule.IPVersion != "ipv4" && rule.IPVersion != "ipv6" {
return fmt.Errorf("IPVersion should be 'ipv4' or 'ipv6'")
}
if rule.Priority < 1 || rule.Priority > 200 {
return fmt.Errorf("priority '%d' is not in the range of 1 to 200", rule.Priority)
}
switch rule.RemoteType {
case kubeovnv1.SgRemoteTypeAddress:
if strings.Contains(rule.RemoteAddress, "/") {
if _, _, err := net.ParseCIDR(rule.RemoteAddress); err != nil {
return fmt.Errorf("invalid CIDR '%s'", rule.RemoteAddress)
}
} else {
if net.ParseIP(rule.RemoteAddress) == nil {
return fmt.Errorf("invalid ip address '%s'", rule.RemoteAddress)
}
}
case kubeovnv1.SgRemoteTypeSg:
_, err := c.sgsLister.Get(rule.RemoteSecurityGroup)
if err != nil {
return fmt.Errorf("failed to get remote sg '%s', %v", rule.RemoteSecurityGroup, err)
}
default:
return fmt.Errorf("not support sgRemoteType '%s'", rule.RemoteType)
}
if rule.Protocol == kubeovnv1.ProtocolTCP || rule.Protocol == kubeovnv1.ProtocolUDP {
if rule.PortRangeMin < 1 || rule.PortRangeMin > 65535 || rule.PortRangeMax < 1 || rule.PortRangeMax > 65535 {
return fmt.Errorf("portRange is out of range")
}
if rule.PortRangeMin > rule.PortRangeMax {
return fmt.Errorf("portRange err, range Minimum value greater than maximum value")
}
}
}
return nil
}
func (c *Controller) patchSgStatus(sg *kubeovnv1.SecurityGroup) {
bytes, err := sg.Status.Bytes()
if err != nil {
klog.Error(err)
return
} else {
if _, err = c.config.KubeOvnClient.KubeovnV1().SecurityGroups().Patch(context.Background(), sg.Name, types.MergePatchType, bytes, metav1.PatchOptions{}, "status"); err != nil {
klog.Error("patch security group status failed", err)
}
}
}
func (c *Controller) handleDeleteSg(key string) error {
c.sgKeyMutex.Lock(key)
defer c.sgKeyMutex.Unlock(key)
return c.ovnLegacyClient.DeleteSgPortGroup(key)
}
func (c *Controller) syncSgLogicalPort(key string) error {
c.sgKeyMutex.Lock(key)
defer c.sgKeyMutex.Unlock(key)
sg, err := c.sgsLister.Get(key)
if err != nil {
if k8serrors.IsNotFound(err) {
klog.Errorf("sg '%s' not found.", key)
return nil
}
klog.Errorf("failed to get sg '%s'. %v", key, err)
return err
}
results, err := c.ovnLegacyClient.CustomFindEntity("logical_switch_port", []string{"_uuid", "name", "port_security"}, fmt.Sprintf("external_ids:associated_sg_%s=true", key))
if err != nil {
klog.Errorf("failed to find logical port, %v", err)
return err
}
var v4s, v6s []string
var ports []string
for _, ret := range results {
if len(ret["port_security"]) < 2 {
continue
}
ports = append(ports, ret["name"][0])
for _, address := range ret["port_security"][1:] {
if strings.Contains(address, ":") {
v6s = append(v6s, address)
} else {
v4s = append(v4s, address)
}
}
}
if err = c.ovnLegacyClient.SetPortsToPortGroup(sg.Status.PortGroup, ports); err != nil {
klog.Errorf("failed to set port to sg, %v", err)
return err
}
if err = c.ovnLegacyClient.SetAddressesToAddressSet(v4s, ovs.GetSgV4AssociatedName(key)); err != nil {
klog.Errorf("failed to set address_set, %v", err)
return err
}
if err = c.ovnLegacyClient.SetAddressesToAddressSet(v6s, ovs.GetSgV6AssociatedName(key)); err != nil {
klog.Errorf("failed to set address_set, %v", err)
return err
}
c.addOrUpdateSgQueue.Add(util.DenyAllSecurityGroup)
return nil
}
func (c *Controller) getPortSg(port *ovnnb.LogicalSwitchPort) ([]string, error) {
var sgList []string
for key, value := range port.ExternalIDs {
if strings.HasPrefix(key, "associated_sg_") && value == "true" {
sgName := strings.ReplaceAll(key, "associated_sg_", "")
sgList = append(sgList, sgName)
}
}
return sgList, nil
}
func (c *Controller) reconcilePortSg(portName, securityGroups string) error {
port, err := c.ovnClient.GetLogicalSwitchPort(portName, false)
if err != nil {
klog.Errorf("failed to get logical switch port %s: %v", portName, err)
return err
}
oldSgList, err := c.getPortSg(port)
if err != nil {
klog.Errorf("get port sg failed, %v", err)
return err
}
klog.Infof("reconcile port sg, port='%s', oldSgList='%s', newSgList='%s'", portName, oldSgList, securityGroups)
newSgList := strings.Split(securityGroups, ",")
diffSgList := util.DiffStringSlice(oldSgList, newSgList)
for _, sgName := range diffSgList {
if sgName == "" {
continue
}
needAssociated := "false"
if util.ContainsString(newSgList, sgName) {
needAssociated = "true"
}
if err = c.ovnLegacyClient.SetPortExternalIds(portName, fmt.Sprintf("associated_sg_%s", sgName), needAssociated); err != nil {
klog.Errorf("set port '%s' external_ids failed, %v", portName, err)
return err
}
c.syncSgPortsQueue.Add(sgName)
}
if err = c.ovnLegacyClient.SetPortExternalIds(portName, "security_groups", strings.ReplaceAll(securityGroups, ",", "/")); err != nil {
klog.Errorf("set port '%s' external_ids failed, %v", portName, err)
return err
}
return nil
}