func (c *controller) handleKeyChange(keys []*types.EncryptionKey) error {
drvEnc := discoverapi.DriverEncryptionUpdate{}
a := c.agent
// Find the deleted key. If the deleted key was the primary key,
// a new primary key should be set before removing if from keyring.
deleted := []byte{}
j := len(c.keys)
for i := 0; i < j; {
same := false
for _, key := range keys {
if same = key.LamportTime == c.keys[i].LamportTime; same {
break
}
}
if !same {
cKey := c.keys[i]
if cKey.Subsystem == subsysGossip {
deleted = cKey.Key
}
if cKey.Subsystem == subsysIPSec {
drvEnc.Prune = cKey.Key
drvEnc.PruneTag = cKey.LamportTime
}
c.keys[i], c.keys[j-1] = c.keys[j-1], c.keys[i]
c.keys[j-1] = nil
j--
}
i++
}
c.keys = c.keys[:j]
// Find the new key and add it to the key ring
for _, key := range keys {
same := false
for _, cKey := range c.keys {
if same = cKey.LamportTime == key.LamportTime; same {
break
}
}
if !same {
c.keys = append(c.keys, key)
if key.Subsystem == subsysGossip {
a.networkDB.SetKey(key.Key)
}
if key.Subsystem == subsysIPSec {
drvEnc.Key = key.Key
drvEnc.Tag = key.LamportTime
}
}
}
key, tag := c.getPrimaryKeyTag(subsysGossip)
a.networkDB.SetPrimaryKey(key)
key, tag = c.getPrimaryKeyTag(subsysIPSec)
drvEnc.Primary = key
drvEnc.PrimaryTag = tag
if len(deleted) > 0 {
a.networkDB.RemoveKey(deleted)
}
c.drvRegistry.WalkDrivers(func(name string, driver driverapi.Driver, capability driverapi.Capability) bool {
err := driver.DiscoverNew(discoverapi.EncryptionKeysUpdate, drvEnc)
if err != nil {
logrus.Warnf("Failed to update datapath keys in driver %s: %v", name, err)
}
return false
})
return nil
}
func (c *controller) handleKeyChangeV1(keys []*types.EncryptionKey) error {
drvEnc := discoverapi.DriverEncryptionUpdate{}
// Find the new key and add it to the key ring
a := c.agent
for _, key := range keys {
same := false
for _, cKey := range c.keys {
if same = cKey.LamportTime == key.LamportTime; same {
break
}
}
if !same {
c.keys = append(c.keys, key)
if key.Subsystem == subsysGossip {
a.networkDB.SetKey(key.Key)
}
if key.Subsystem == subsysGossip /*subsysIPSec*/ {
drvEnc.Key = key.Key
drvEnc.Tag = key.LamportTime
}
break
}
}
// Find the deleted key. If the deleted key was the primary key,
// a new primary key should be set before removing if from keyring.
deleted := []byte{}
for i, cKey := range c.keys {
same := false
for _, key := range keys {
if same = key.LamportTime == cKey.LamportTime; same {
break
}
}
if !same {
if cKey.Subsystem == subsysGossip {
deleted = cKey.Key
}
if cKey.Subsystem == subsysGossip /*subsysIPSec*/ {
drvEnc.Prune = cKey.Key
drvEnc.PruneTag = cKey.LamportTime
}
c.keys = append(c.keys[:i], c.keys[i+1:]...)
break
}
}
sort.Sort(ByTime(c.keys))
for _, key := range c.keys {
if key.Subsystem == subsysGossip {
a.networkDB.SetPrimaryKey(key.Key)
break
}
}
for _, key := range c.keys {
if key.Subsystem == subsysGossip /*subsysIPSec*/ {
drvEnc.Primary = key.Key
drvEnc.PrimaryTag = key.LamportTime
break
}
}
if len(deleted) > 0 {
a.networkDB.RemoveKey(deleted)
}
c.drvRegistry.WalkDrivers(func(name string, driver driverapi.Driver, capability driverapi.Capability) bool {
err := driver.DiscoverNew(discoverapi.EncryptionKeysUpdate, drvEnc)
if err != nil {
logrus.Warnf("Failed to update datapath keys in driver %s: %v", name, err)
}
return false
})
return nil
}