status-im
/
consul
mirror of https://github.com/status-im/consul.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge pull request #3488 from hashicorp/sentinel_oss 

Introduce Code Policy validation via sentinel into ACLs, with a noop implementation
This commit is contained in:
preetapan 2017-09-25 13:49:20 -05:00 committed by GitHub
parent 12216583a1 d7e27e67c1
commit 70d7f8e71d
20 changed files with 373 additions and 155 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

113
acl/acl.go
View File

@ -2,6 +2,7 @@ package acl
import (
"github.com/armon/go-radix"
"github.com/hashicorp/consul/sentinel"
)
var (
@ -17,6 +18,10 @@ var (
manageAll ACL
)
// DefaultPolicyEnforcementLevel will be used if the user leaves the level
// blank when configuring an ACL.
const DefaultPolicyEnforcementLevel = "hard-mandatory"
func init() {
// Setup the singletons
allowAll = &StaticACL{
@ -59,7 +64,7 @@ type ACL interface {
KeyRead(string) bool
// KeyWrite checks for permission to write a given key
KeyWrite(string) bool
KeyWrite(string, sentinel.ScopeFn) bool
// KeyWritePrefix checks for permission to write to an
// entire key prefix. This means there must be no sub-policies
@ -78,7 +83,7 @@ type ACL interface {
// NodeWrite checks for permission to create or update (register) a
// given node.
NodeWrite(string) bool
NodeWrite(string, sentinel.ScopeFn) bool
// OperatorRead determines if the read-only Consul operator functions
// can be used.
@ -101,7 +106,7 @@ type ACL interface {
// ServiceWrite checks for permission to create or update a given
// service
ServiceWrite(string) bool
ServiceWrite(string, sentinel.ScopeFn) bool
// SessionRead checks for permission to read sessions for a given node.
SessionRead(string) bool
@ -150,7 +155,7 @@ func (s *StaticACL) KeyRead(string) bool {
return s.defaultAllow
}
func (s *StaticACL) KeyWrite(string) bool {
func (s *StaticACL) KeyWrite(string, sentinel.ScopeFn) bool {
return s.defaultAllow
}
@ -170,7 +175,7 @@ func (s *StaticACL) NodeRead(string) bool {
return s.defaultAllow
}
func (s *StaticACL) NodeWrite(string) bool {
func (s *StaticACL) NodeWrite(string, sentinel.ScopeFn) bool {
return s.defaultAllow
}
@ -194,7 +199,7 @@ func (s *StaticACL) ServiceRead(string) bool {
return s.defaultAllow
}
func (s *StaticACL) ServiceWrite(string) bool {
func (s *StaticACL) ServiceWrite(string, sentinel.ScopeFn) bool {
return s.defaultAllow
}
@ -239,6 +244,16 @@ func RootACL(id string) ACL {
}
}
// PolicyRule binds a regular ACL policy along with an optional piece of
// code to execute.
type PolicyRule struct {
// aclPolicy is used for simple acl rules(allow/deny/manage)
aclPolicy string
// sentinelPolicy has the code part of a policy
sentinelPolicy Sentinel
}
// PolicyACL is used to wrap a set of ACL policies to provide
// the ACL interface.
type PolicyACL struct {
@ -246,6 +261,10 @@ type PolicyACL struct {
// no matching rule.
parent ACL
// sentinel is an interface for validating and executing sentinel code
// policies.
sentinel sentinel.Evaluator
// agentRules contains the agent policies
agentRules *radix.Tree
@ -278,7 +297,7 @@ type PolicyACL struct {
// New is used to construct a policy based ACL from a set of policies
// and a parent policy to resolve missing cases.
func New(parent ACL, policy *Policy) (*PolicyACL, error) {
func New(parent ACL, policy *Policy, sentinel sentinel.Evaluator) (*PolicyACL, error) {
p := &PolicyACL{
parent: parent,
agentRules: radix.New(),
@ -288,6 +307,7 @@ func New(parent ACL, policy *Policy) (*PolicyACL, error) {
sessionRules: radix.New(),
eventRules: radix.New(),
preparedQueryRules: radix.New(),
sentinel: sentinel,
}
// Load the agent policy
@ -297,17 +317,29 @@ func New(parent ACL, policy *Policy) (*PolicyACL, error) {
// Load the key policy
for _, kp := range policy.Keys {
p.keyRules.Insert(kp.Prefix, kp.Policy)
policyRule := PolicyRule{
aclPolicy: kp.Policy,
sentinelPolicy: kp.Sentinel,
}
p.keyRules.Insert(kp.Prefix, policyRule)
}
// Load the node policy
for _, np := range policy.Nodes {
p.nodeRules.Insert(np.Name, np.Policy)
policyRule := PolicyRule{
aclPolicy: np.Policy,
sentinelPolicy: np.Sentinel,
}
p.nodeRules.Insert(np.Name, policyRule)
}
// Load the service policy
for _, sp := range policy.Services {
p.serviceRules.Insert(sp.Name, sp.Policy)
policyRule := PolicyRule{
aclPolicy: sp.Policy,
sentinelPolicy: sp.Sentinel,
}
p.serviceRules.Insert(sp.Name, policyRule)
}
// Load the session policy
@ -421,7 +453,8 @@ func (p *PolicyACL) KeyRead(key string) bool {
// Look for a matching rule
_, rule, ok := p.keyRules.LongestPrefix(key)
if ok {
switch rule.(string) {
pr := rule.(PolicyRule)
switch pr.aclPolicy {
case PolicyRead, PolicyWrite:
return true
default:
@ -434,27 +467,28 @@ func (p *PolicyACL) KeyRead(key string) bool {
}
// KeyWrite returns if a key is allowed to be written
func (p *PolicyACL) KeyWrite(key string) bool {
func (p *PolicyACL) KeyWrite(key string, scope sentinel.ScopeFn) bool {
// Look for a matching rule
_, rule, ok := p.keyRules.LongestPrefix(key)
if ok {
switch rule.(string) {
pr := rule.(PolicyRule)
switch pr.aclPolicy {
case PolicyWrite:
return true
return p.executeCodePolicy(&pr.sentinelPolicy, scope)
default:
return false
}
}
// No matching rule, use the parent.
return p.parent.KeyWrite(key)
return p.parent.KeyWrite(key, scope)
}
// KeyWritePrefix returns if a prefix is allowed to be written
func (p *PolicyACL) KeyWritePrefix(prefix string) bool {
// Look for a matching rule that denies
_, rule, ok := p.keyRules.LongestPrefix(prefix)
if ok && rule.(string) != PolicyWrite {
if ok && rule.(PolicyRule).aclPolicy != PolicyWrite {
return false
}
@ -462,7 +496,7 @@ func (p *PolicyACL) KeyWritePrefix(prefix string) bool {
deny := false
p.keyRules.WalkPrefix(prefix, func(path string, rule interface{}) bool {
// We have a rule to prevent a write in a sub-directory!
if rule.(string) != PolicyWrite {
if rule.(PolicyRule).aclPolicy != PolicyWrite {
deny = true
return true
}
@ -522,7 +556,8 @@ func (p *PolicyACL) NodeRead(name string) bool {
_, rule, ok := p.nodeRules.LongestPrefix(name)
if ok {
switch rule {
pr := rule.(PolicyRule)
switch pr.aclPolicy {
case PolicyRead, PolicyWrite:
return true
default:
@ -535,21 +570,22 @@ func (p *PolicyACL) NodeRead(name string) bool {
}
// NodeWrite checks if writing (registering) a node is allowed
func (p *PolicyACL) NodeWrite(name string) bool {
func (p *PolicyACL) NodeWrite(name string, scope sentinel.ScopeFn) bool {
// Check for an exact rule or catch-all
_, rule, ok := p.nodeRules.LongestPrefix(name)
if ok {
switch rule {
pr := rule.(PolicyRule)
switch pr.aclPolicy {
case PolicyWrite:
return true
return p.executeCodePolicy(&pr.sentinelPolicy, scope)
default:
return false
}
}
// No matching rule, use the parent.
return p.parent.NodeWrite(name)
return p.parent.NodeWrite(name, scope)
}
// OperatorWrite determines if the state-changing operator functions are
@ -603,9 +639,9 @@ func (p *PolicyACL) PreparedQueryWrite(prefix string) bool {
func (p *PolicyACL) ServiceRead(name string) bool {
// Check for an exact rule or catch-all
_, rule, ok := p.serviceRules.LongestPrefix(name)
if ok {
switch rule {
pr := rule.(PolicyRule)
switch pr.aclPolicy {
case PolicyRead, PolicyWrite:
return true
default:
@ -618,21 +654,21 @@ func (p *PolicyACL) ServiceRead(name string) bool {
}
// ServiceWrite checks if writing (registering) a service is allowed
func (p *PolicyACL) ServiceWrite(name string) bool {
func (p *PolicyACL) ServiceWrite(name string, scope sentinel.ScopeFn) bool {
// Check for an exact rule or catch-all
_, rule, ok := p.serviceRules.LongestPrefix(name)
if ok {
switch rule {
pr := rule.(PolicyRule)
switch pr.aclPolicy {
case PolicyWrite:
return true
return p.executeCodePolicy(&pr.sentinelPolicy, scope)
default:
return false
}
}
// No matching rule, use the parent.
return p.parent.ServiceWrite(name)
return p.parent.ServiceWrite(name, scope)
}
// SessionRead checks for permission to read sessions for a given node.
@ -670,3 +706,22 @@ func (p *PolicyACL) SessionWrite(node string) bool {
// No matching rule, use the parent.
return p.parent.SessionWrite(node)
}
// executeCodePolicy will run the associated code policy if code policies are
// enabled.
func (p *PolicyACL) executeCodePolicy(policy *Sentinel, scope sentinel.ScopeFn) bool {
if p.sentinel == nil {
return true
}
if policy.Code == "" || scope == nil {
return true
}
enforcement := policy.EnforcementLevel
if enforcement == "" {
enforcement = DefaultPolicyEnforcementLevel
}
return p.sentinel.Execute(policy.Code, enforcement, scope())
}

50
acl/acl_test.go
View File

@ -56,7 +56,7 @@ func TestStaticACL(t *testing.T) {
if !all.KeyRead("foobar") {
t.Fatalf("should allow")
}
if !all.KeyWrite("foobar") {
if !all.KeyWrite("foobar", nil) {
t.Fatalf("should allow")
}
if !all.KeyringRead() {
@ -68,7 +68,7 @@ func TestStaticACL(t *testing.T) {
if !all.NodeRead("foobar") {
t.Fatalf("should allow")
}
if !all.NodeWrite("foobar") {
if !all.NodeWrite("foobar", nil) {
t.Fatalf("should allow")
}
if !all.OperatorRead() {
@ -86,7 +86,7 @@ func TestStaticACL(t *testing.T) {
if !all.ServiceRead("foobar") {
t.Fatalf("should allow")
}
if !all.ServiceWrite("foobar") {
if !all.ServiceWrite("foobar", nil) {
t.Fatalf("should allow")
}
if !all.SessionRead("foobar") {
@ -126,7 +126,7 @@ func TestStaticACL(t *testing.T) {
if none.KeyRead("foobar") {
t.Fatalf("should not allow")
}
if none.KeyWrite("foobar") {
if none.KeyWrite("foobar", nil) {
t.Fatalf("should not allow")
}
if none.KeyringRead() {
@ -138,7 +138,7 @@ func TestStaticACL(t *testing.T) {
if none.NodeRead("foobar") {
t.Fatalf("should not allow")
}
if none.NodeWrite("foobar") {
if none.NodeWrite("foobar", nil) {
t.Fatalf("should not allow")
}
if none.OperatorRead() {
@ -156,7 +156,7 @@ func TestStaticACL(t *testing.T) {
if none.ServiceRead("foobar") {
t.Fatalf("should not allow")
}
if none.ServiceWrite("foobar") {
if none.ServiceWrite("foobar", nil) {
t.Fatalf("should not allow")
}
if none.SessionRead("foobar") {
@ -190,7 +190,7 @@ func TestStaticACL(t *testing.T) {
if !manage.KeyRead("foobar") {
t.Fatalf("should allow")
}
if !manage.KeyWrite("foobar") {
if !manage.KeyWrite("foobar", nil) {
t.Fatalf("should allow")
}
if !manage.KeyringRead() {
@ -202,7 +202,7 @@ func TestStaticACL(t *testing.T) {
if !manage.NodeRead("foobar") {
t.Fatalf("should allow")
}
if !manage.NodeWrite("foobar") {
if !manage.NodeWrite("foobar", nil) {
t.Fatalf("should allow")
}
if !manage.OperatorRead() {
@ -220,7 +220,7 @@ func TestStaticACL(t *testing.T) {
if !manage.ServiceRead("foobar") {
t.Fatalf("should allow")
}
if !manage.ServiceWrite("foobar") {
if !manage.ServiceWrite("foobar", nil) {
t.Fatalf("should allow")
}
if !manage.SessionRead("foobar") {
@ -306,7 +306,7 @@ func TestPolicyACL(t *testing.T) {
},
},
}
acl, err := New(all, policy)
acl, err := New(all, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -330,7 +330,7 @@ func TestPolicyACL(t *testing.T) {
if c.read != acl.KeyRead(c.inp) {
t.Fatalf("Read fail: %#v", c)
}
if c.write != acl.KeyWrite(c.inp) {
if c.write != acl.KeyWrite(c.inp, nil) {
t.Fatalf("Write fail: %#v", c)
}
if c.writePrefix != acl.KeyWritePrefix(c.inp) {
@ -357,7 +357,7 @@ func TestPolicyACL(t *testing.T) {
if c.read != acl.ServiceRead(c.inp) {
t.Fatalf("Read fail: %#v", c)
}
if c.write != acl.ServiceWrite(c.inp) {
if c.write != acl.ServiceWrite(c.inp, nil) {
t.Fatalf("Write fail: %#v", c)
}
}
@ -444,7 +444,7 @@ func TestPolicyACL_Parent(t *testing.T) {
},
},
}
root, err := New(deny, policyRoot)
root, err := New(deny, policyRoot, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -477,7 +477,7 @@ func TestPolicyACL_Parent(t *testing.T) {
},
},
}
acl, err := New(root, policy)
acl, err := New(root, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -499,7 +499,7 @@ func TestPolicyACL_Parent(t *testing.T) {
if c.read != acl.KeyRead(c.inp) {
t.Fatalf("Read fail: %#v", c)
}
if c.write != acl.KeyWrite(c.inp) {
if c.write != acl.KeyWrite(c.inp, nil) {
t.Fatalf("Write fail: %#v", c)
}
if c.writePrefix != acl.KeyWritePrefix(c.inp) {
@ -523,7 +523,7 @@ func TestPolicyACL_Parent(t *testing.T) {
if c.read != acl.ServiceRead(c.inp) {
t.Fatalf("Read fail: %#v", c)
}
if c.write != acl.ServiceWrite(c.inp) {
if c.write != acl.ServiceWrite(c.inp, nil) {
t.Fatalf("Write fail: %#v", c)
}
}
@ -585,7 +585,7 @@ func TestPolicyACL_Agent(t *testing.T) {
},
},
}
root, err := New(deny, policyRoot)
root, err := New(deny, policyRoot, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -610,7 +610,7 @@ func TestPolicyACL_Agent(t *testing.T) {
},
},
}
acl, err := New(root, policy)
acl, err := New(root, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -659,7 +659,7 @@ func TestPolicyACL_Keyring(t *testing.T) {
{PolicyDeny, false, false},
}
for _, c := range cases {
acl, err := New(DenyAll(), &Policy{Keyring: c.inp})
acl, err := New(DenyAll(), &Policy{Keyring: c.inp}, nil)
if err != nil {
t.Fatalf("bad: %s", err)
}
@ -685,7 +685,7 @@ func TestPolicyACL_Operator(t *testing.T) {
{PolicyDeny, false, false},
}
for _, c := range cases {
acl, err := New(DenyAll(), &Policy{Operator: c.inp})
acl, err := New(DenyAll(), &Policy{Operator: c.inp}, nil)
if err != nil {
t.Fatalf("bad: %s", err)
}
@ -720,7 +720,7 @@ func TestPolicyACL_Node(t *testing.T) {
},
},
}
root, err := New(deny, policyRoot)
root, err := New(deny, policyRoot, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -745,7 +745,7 @@ func TestPolicyACL_Node(t *testing.T) {
},
},
}
acl, err := New(root, policy)
acl, err := New(root, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -775,7 +775,7 @@ func TestPolicyACL_Node(t *testing.T) {
if c.read != acl.NodeRead(c.inp) {
t.Fatalf("Read fail: %#v", c)
}
if c.write != acl.NodeWrite(c.inp) {
if c.write != acl.NodeWrite(c.inp, nil) {
t.Fatalf("Write fail: %#v", c)
}
}
@ -803,7 +803,7 @@ func TestPolicyACL_Session(t *testing.T) {
},
},
}
root, err := New(deny, policyRoot)
root, err := New(deny, policyRoot, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -828,7 +828,7 @@ func TestPolicyACL_Session(t *testing.T) {
},
},
}
acl, err := New(root, policy)
acl, err := New(root, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}

9
acl/cache.go
View File

@ -4,6 +4,7 @@ import (
"crypto/md5"
"fmt"
"github.com/hashicorp/consul/sentinel"
"github.com/hashicorp/golang-lru"
)
@ -24,10 +25,11 @@ type Cache struct {
aclCache *lru.TwoQueueCache // Cache id -> acl
policyCache *lru.TwoQueueCache // Cache policy -> acl
ruleCache *lru.TwoQueueCache // Cache rules -> policy
sentinel sentinel.Evaluator
}
// NewCache constructs a new policy and ACL cache of a given size
func NewCache(size int, faultfn FaultFunc) (*Cache, error) {
func NewCache(size int, faultfn FaultFunc, sentinel sentinel.Evaluator) (*Cache, error) {
if size <= 0 {
return nil, fmt.Errorf("Must provide positive cache size")
}
@ -52,6 +54,7 @@ func NewCache(size int, faultfn FaultFunc) (*Cache, error) {
aclCache: ac,
policyCache: pc,
ruleCache: rc,
sentinel: sentinel,
}
return c, nil
}
@ -69,7 +72,7 @@ func (c *Cache) getPolicy(id, rules string) (*Policy, error) {
if ok {
return raw.(*Policy), nil
}
policy, err := Parse(rules)
policy, err := Parse(rules, c.sentinel)
if err != nil {
return nil, err
}
@ -149,7 +152,7 @@ func (c *Cache) GetACL(id string) (ACL, error) {
}
// Compile the ACL
acl, err := New(parent, policy)
acl, err := New(parent, policy, c.sentinel)
if err != nil {
return nil, err
}

14
acl/cache_test.go
View File

@ -5,7 +5,7 @@ import (
)
func TestCache_GetPolicy(t *testing.T) {
c, err := NewCache(2, nil)
c, err := NewCache(2, nil, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -62,7 +62,7 @@ func TestCache_GetACL(t *testing.T) {
return "deny", policies[id], nil
}
c, err := NewCache(2, faultfn)
c, err := NewCache(2, faultfn, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -125,7 +125,7 @@ func TestCache_ClearACL(t *testing.T) {
return "deny", policies[id], nil
}
c, err := NewCache(16, faultfn)
c, err := NewCache(16, faultfn, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -160,7 +160,7 @@ func TestCache_Purge(t *testing.T) {
return "deny", policies[id], nil
}
c, err := NewCache(16, faultfn)
c, err := NewCache(16, faultfn, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -192,7 +192,7 @@ func TestCache_GetACLPolicy(t *testing.T) {
faultfn := func(id string) (string, string, error) {
return "deny", policies[id], nil
}
c, err := NewCache(16, faultfn)
c, err := NewCache(16, faultfn, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -245,7 +245,7 @@ func TestCache_GetACL_Parent(t *testing.T) {
return "", "", nil
}
c, err := NewCache(16, faultfn)
c, err := NewCache(16, faultfn, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -276,7 +276,7 @@ func TestCache_GetACL_ParentCache(t *testing.T) {
return "", "", nil
}
c, err := NewCache(16, faultfn)
c, err := NewCache(16, faultfn, nil)
if err != nil {
t.Fatalf("err: %v", err)
}

49
acl/policy.go
View File

@ -3,6 +3,7 @@ package acl
import (
"fmt"
"github.com/hashicorp/consul/sentinel"
"github.com/hashicorp/hcl"
)
@ -27,6 +28,12 @@ type Policy struct {
Operator string `hcl:"operator"`
}
// Sentinel defines a snippet of Sentinel code that can be attached to a policy.
type Sentinel struct {
Code string
EnforcementLevel string
}
// AgentPolicy represents a policy for working with agent endpoints on nodes
// with specific name prefixes.
type AgentPolicy struct {
@ -42,6 +49,7 @@ func (a *AgentPolicy) GoString() string {
type KeyPolicy struct {
Prefix string `hcl:",key"`
Policy string
Sentinel Sentinel
}
func (k *KeyPolicy) GoString() string {
@ -52,6 +60,7 @@ func (k *KeyPolicy) GoString() string {
type NodePolicy struct {
Name string `hcl:",key"`
Policy string
Sentinel Sentinel
}
func (n *NodePolicy) GoString() string {
@ -62,6 +71,7 @@ func (n *NodePolicy) GoString() string {
type ServicePolicy struct {
Name string `hcl:",key"`
Policy string
Sentinel Sentinel
}
func (s *ServicePolicy) GoString() string {
@ -113,10 +123,38 @@ func isPolicyValid(policy string) bool {
}
}
// isSentinelValid makes sure the given sentinel block is valid, and will skip
// out if the evaluator is nil.
func isSentinelValid(sentinel sentinel.Evaluator, basicPolicy string, sp Sentinel) error {
// TODO (slackpad) - Need a unit test for this.
// Sentinel not enabled at all, or for this policy.
if sentinel == nil {
return nil
}
if sp.Code == "" {
return nil
}
// We only allow sentinel code on write policies at this time.
if basicPolicy != PolicyWrite {
return fmt.Errorf("code is only allowed for write policies")
}
// Validate the sentinel parts.
switch sp.EnforcementLevel {
case "", "soft-mandatory", "hard-mandatory":
// OK
default:
return fmt.Errorf("unsupported enforcement level %q", sp.EnforcementLevel)
}
return sentinel.Compile(sp.Code)
}
// Parse is used to parse the specified ACL rules into an
// intermediary set of policies, before being compiled into
// the ACL
func Parse(rules string) (*Policy, error) {
func Parse(rules string, sentinel sentinel.Evaluator) (*Policy, error) {
// Decode the rules
p := &Policy{}
if rules == "" {
@ -140,6 +178,9 @@ func Parse(rules string) (*Policy, error) {
if !isPolicyValid(kp.Policy) {
return nil, fmt.Errorf("Invalid key policy: %#v", kp)
}
if err := isSentinelValid(sentinel, kp.Policy, kp.Sentinel); err != nil {
return nil, fmt.Errorf("Invalid key Sentinel policy: %#v, got error:%v", kp, err)
}
}
// Validate the node policies
@ -147,6 +188,9 @@ func Parse(rules string) (*Policy, error) {
if !isPolicyValid(np.Policy) {
return nil, fmt.Errorf("Invalid node policy: %#v", np)
}
if err := isSentinelValid(sentinel, np.Policy, np.Sentinel); err != nil {
return nil, fmt.Errorf("Invalid node Sentinel policy: %#v, got error:%v", np, err)
}
}
// Validate the service policies
@ -154,6 +198,9 @@ func Parse(rules string) (*Policy, error) {
if !isPolicyValid(sp.Policy) {
return nil, fmt.Errorf("Invalid service policy: %#v", sp)
}
if err := isSentinelValid(sentinel, sp.Policy, sp.Sentinel); err != nil {
return nil, fmt.Errorf("Invalid service Sentinel policy: %#v, got error:%v", sp, err)
}
}
// Validate the session policies

10
acl/policy_test.go
View File

@ -163,7 +163,7 @@ query "bar" {
},
}
out, err := Parse(inp)
out, err := Parse(inp, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -344,7 +344,7 @@ func TestACLPolicy_Parse_JSON(t *testing.T) {
},
}
out, err := Parse(inp)
out, err := Parse(inp, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -362,7 +362,7 @@ keyring = ""
Keyring: "",
}
out, err := Parse(inp)
out, err := Parse(inp, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -380,7 +380,7 @@ operator = ""
Operator: "",
}
out, err := Parse(inp)
out, err := Parse(inp, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -403,7 +403,7 @@ func TestACLPolicy_Bad_Policy(t *testing.T) {
`session "" { policy = "nope" }`,
}
for _, c := range cases {
_, err := Parse(c)
_, err := Parse(c, nil)
if err == nil || !strings.Contains(err.Error(), "Invalid") {
t.Fatalf("expected policy error, got: %#v", err)
}

22
agent/acl.go
View File

@ -91,7 +91,7 @@ func newACLManager(config *config.RuntimeConfig) (*aclManager, error) {
},
},
}
master, err := acl.New(acl.DenyAll(), policy)
master, err := acl.New(acl.DenyAll(), policy, nil)
if err != nil {
return nil, err
}
@ -194,7 +194,7 @@ func (m *aclManager) lookupACL(a *Agent, id string) (acl.ACL, error) {
}
}
acl, err := acl.New(parent, reply.Policy)
acl, err := acl.New(parent, reply.Policy, nil)
if err != nil {
return nil, err
}
@ -252,14 +252,14 @@ func (a *Agent) vetServiceRegister(token string, service *structs.NodeService) e
}
// Vet the service itself.
if !rule.ServiceWrite(service.Service) {
if !rule.ServiceWrite(service.Service, nil) {
return acl.ErrPermissionDenied
}
// Vet any service that might be getting overwritten.
services := a.state.Services()
if existing, ok := services[service.ID]; ok {
if !rule.ServiceWrite(existing.Service) {
if !rule.ServiceWrite(existing.Service, nil) {
return acl.ErrPermissionDenied
}
}
@ -282,7 +282,7 @@ func (a *Agent) vetServiceUpdate(token string, serviceID string) error {
// Vet any changes based on the existing services's info.
services := a.state.Services()
if existing, ok := services[serviceID]; ok {
if !rule.ServiceWrite(existing.Service) {
if !rule.ServiceWrite(existing.Service, nil) {
return acl.ErrPermissionDenied
}
} else {
@ -306,11 +306,11 @@ func (a *Agent) vetCheckRegister(token string, check *structs.HealthCheck) error
// Vet the check itself.
if len(check.ServiceName) > 0 {
if !rule.ServiceWrite(check.ServiceName) {
if !rule.ServiceWrite(check.ServiceName, nil) {
return acl.ErrPermissionDenied
}
} else {
if !rule.NodeWrite(a.config.NodeName) {
if !rule.NodeWrite(a.config.NodeName, nil) {
return acl.ErrPermissionDenied
}
}
@ -319,11 +319,11 @@ func (a *Agent) vetCheckRegister(token string, check *structs.HealthCheck) error
checks := a.state.Checks()
if existing, ok := checks[check.CheckID]; ok {
if len(existing.ServiceName) > 0 {
if !rule.ServiceWrite(existing.ServiceName) {
if !rule.ServiceWrite(existing.ServiceName, nil) {
return acl.ErrPermissionDenied
}
} else {
if !rule.NodeWrite(a.config.NodeName) {
if !rule.NodeWrite(a.config.NodeName, nil) {
return acl.ErrPermissionDenied
}
}
@ -347,11 +347,11 @@ func (a *Agent) vetCheckUpdate(token string, checkID types.CheckID) error {
checks := a.state.Checks()
if existing, ok := checks[checkID]; ok {
if len(existing.ServiceName) > 0 {
if !rule.ServiceWrite(existing.ServiceName) {
if !rule.ServiceWrite(existing.ServiceName, nil) {
return acl.ErrPermissionDenied
}
} else {
if !rule.NodeWrite(a.config.NodeName) {
if !rule.NodeWrite(a.config.NodeName, nil) {
return acl.ErrPermissionDenied
}
}

2
agent/acl_test.go
View File

@ -207,7 +207,7 @@ func TestACL_Special_IDs(t *testing.T) {
if !acl.NodeRead("hello") {
t.Fatalf("should be able to read any node")
}
if acl.NodeWrite("hello") {
if acl.NodeWrite("hello", nil) {
t.Fatalf("should not be able to write any node")
}
}

2
agent/agent_endpoint.go
View File

@ -637,7 +637,7 @@ func (s *HTTPServer) AgentNodeMaintenance(resp http.ResponseWriter, req *http.Re
if err != nil {
return nil, err
}
if rule != nil && !rule.NodeWrite(s.agent.config.NodeName) {
if rule != nil && !rule.NodeWrite(s.agent.config.NodeName, nil) {
return nil, acl.ErrPermissionDenied
}

79
agent/consul/acl.go
View File

@ -9,6 +9,8 @@ import (
"github.com/armon/go-metrics"
"github.com/hashicorp/consul/acl"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/sentinel"
"github.com/hashicorp/golang-lru"
)
@ -102,6 +104,9 @@ type aclCache struct {
// acls is a non-authoritative ACL cache.
acls *lru.TwoQueueCache
// sentinel is the code engine (can be nil).
sentinel sentinel.Evaluator
// aclPolicyCache is a non-authoritative policy cache.
policies *lru.TwoQueueCache
@ -116,13 +121,14 @@ type aclCache struct {
// newACLCache returns a new non-authoritative cache for ACLs. This is used for
// performance, and is used inside the ACL datacenter on non-leader servers, and
// outside the ACL datacenter everywhere.
func newACLCache(conf *Config, logger *log.Logger, rpc rpcFn, local acl.FaultFunc) (*aclCache, error) {
func newACLCache(conf *Config, logger *log.Logger, rpc rpcFn, local acl.FaultFunc, sentinel sentinel.Evaluator) (*aclCache, error) {
var err error
cache := &aclCache{
config: conf,
logger: logger,
rpc: rpc,
local: local,
sentinel: sentinel,
}
// Initialize the non-authoritative ACL cache
@ -206,7 +212,7 @@ func (c *aclCache) lookupACL(id, authDC string) (acl.ACL, error) {
goto ACL_DOWN
}
policy, err := acl.Parse(rules)
policy, err := acl.Parse(rules, c.sentinel)
if err != nil {
c.logger.Printf("[DEBUG] consul.acl: Failed to parse policy for replicated ACL: %v", err)
goto ACL_DOWN
@ -268,7 +274,7 @@ func (c *aclCache) useACLPolicy(id, authDC string, cached *aclCacheEntry, p *str
}
// Compile the ACL
acl, err := acl.New(parent, p.Policy)
acl, err := acl.New(parent, p.Policy, c.sentinel)
if err != nil {
return nil, err
}
@ -327,7 +333,6 @@ func (f *aclFilter) allowService(service string) bool {
if !f.enforceVersion8 && service == structs.ConsulServiceID {
return true
}
return f.acl.ServiceRead(service)
}
@ -564,8 +569,7 @@ func (f *aclFilter) filterPreparedQueries(queries *structs.PreparedQueries) {
}
// filterACL is used to filter results from our service catalog based on the
// rules configured for the provided token. The subject is scrubbed and
// modified in-place, leaving only resources the token can access.
// rules configured for the provided token.
func (s *Server) filterACL(token string, subj interface{}) error {
// Get the ACL from the token
acl, err := s.resolveToken(token)
@ -646,11 +650,45 @@ func vetRegisterWithACL(rule acl.ACL, subj *structs.RegisterRequest,
return nil
}
// This gets called potentially from a few spots so we save it and
// return the structure we made if we have it.
var memo map[string]interface{}
scope := func() map[string]interface{} {
if memo != nil {
return memo
}
node := &api.Node{
ID: string(subj.ID),
Node: subj.Node,
Address: subj.Address,
Datacenter: subj.Datacenter,
TaggedAddresses: subj.TaggedAddresses,
Meta: subj.NodeMeta,
}
var service *api.AgentService
if subj.Service != nil {
service = &api.AgentService{
ID: subj.Service.ID,
Service: subj.Service.Service,
Tags: subj.Service.Tags,
Address: subj.Service.Address,
Port: subj.Service.Port,
EnableTagOverride: subj.Service.EnableTagOverride,
}
}
memo = sentinel.ScopeCatalogUpsert(node, service)
return memo
}
// Vet the node info. This allows service updates to re-post the required
// node info for each request without having to have node "write"
// privileges.
needsNode := ns == nil || subj.ChangesNode(ns.Node)
if needsNode && !rule.NodeWrite(subj.Node) {
if needsNode && !rule.NodeWrite(subj.Node, scope) {
return acl.ErrPermissionDenied
}
@ -658,13 +696,17 @@ func vetRegisterWithACL(rule acl.ACL, subj *structs.RegisterRequest,
// the given service, and that we can write to any existing service that
// is being modified by id (if any).
if subj.Service != nil {
if !rule.ServiceWrite(subj.Service.Service) {
if !rule.ServiceWrite(subj.Service.Service, scope) {
return acl.ErrPermissionDenied
}
if ns != nil {
other, ok := ns.Services[subj.Service.ID]
if ok && !rule.ServiceWrite(other.Service) {
// This is effectively a delete, so we DO NOT apply the
// sentinel scope to the service we are overwriting, just
// the regular ACL policy.
if ok && !rule.ServiceWrite(other.Service, nil) {
return acl.ErrPermissionDenied
}
}
@ -693,7 +735,7 @@ func vetRegisterWithACL(rule acl.ACL, subj *structs.RegisterRequest,
// Node-level check.
if check.ServiceID == "" {
if !rule.NodeWrite(subj.Node) {
if !rule.NodeWrite(subj.Node, scope) {
return acl.ErrPermissionDenied
}
continue
@ -718,7 +760,10 @@ func vetRegisterWithACL(rule acl.ACL, subj *structs.RegisterRequest,
return fmt.Errorf("Unknown service '%s' for check '%s'", check.ServiceID, check.CheckID)
}
if !rule.ServiceWrite(other.Service) {
// We are only adding a check here, so we don't add the scope,
// since the sentinel policy doesn't apply to adding checks at
// this time.
if !rule.ServiceWrite(other.Service, nil) {
return acl.ErrPermissionDenied
}
}
@ -733,11 +778,15 @@ func vetRegisterWithACL(rule acl.ACL, subj *structs.RegisterRequest,
// be nil; similar for the HealthCheck for the referenced health check.
func vetDeregisterWithACL(rule acl.ACL, subj *structs.DeregisterRequest,
ns *structs.NodeService, nc *structs.HealthCheck) error {
// Fast path if ACLs are not enabled.
if rule == nil {
return nil
}
// We don't apply sentinel in this path, since at this time sentinel
// only applies to create and update operations.
// This order must match the code in applyRegister() in fsm.go since it
// also evaluates things in this order, and will ignore fields based on
// this precedence. This lets us also ignore them from an ACL perspective.
@ -745,7 +794,7 @@ func vetDeregisterWithACL(rule acl.ACL, subj *structs.DeregisterRequest,
if ns == nil {
return fmt.Errorf("Unknown service '%s'", subj.ServiceID)
}
if !rule.ServiceWrite(ns.Service) {
if !rule.ServiceWrite(ns.Service, nil) {
return acl.ErrPermissionDenied
}
} else if subj.CheckID != "" {
@ -753,16 +802,16 @@ func vetDeregisterWithACL(rule acl.ACL, subj *structs.DeregisterRequest,
return fmt.Errorf("Unknown check '%s'", subj.CheckID)
}
if nc.ServiceID != "" {
if !rule.ServiceWrite(nc.ServiceName) {
if !rule.ServiceWrite(nc.ServiceName, nil) {
return acl.ErrPermissionDenied
}
} else {
if !rule.NodeWrite(subj.Node) {
if !rule.NodeWrite(subj.Node, nil) {
return acl.ErrPermissionDenied
}
}
} else {
if !rule.NodeWrite(subj.Node) {
if !rule.NodeWrite(subj.Node, nil) {
return acl.ErrPermissionDenied
}
}

2
agent/consul/acl_endpoint.go
View File

@ -107,7 +107,7 @@ func aclApplyInternal(srv *Server, args *structs.ACLRequest, reply *string) erro
}
// Validate the rules compile
_, err := acl.Parse(args.ACL.Rules)
_, err := acl.Parse(args.ACL.Rules, srv.sentinel)
if err != nil {
return fmt.Errorf("ACL rule compilation failed: %v", err)
}

64
agent/consul/acl_test.go
View File

@ -793,11 +793,11 @@ func TestACL_filterHealthChecks(t *testing.T) {
service "foo" {
policy = "read"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err := acl.New(acl.DenyAll(), policy)
perms, err := acl.New(acl.DenyAll(), policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -827,11 +827,11 @@ service "foo" {
node "node1" {
policy = "read"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err = acl.New(perms, policy)
perms, err = acl.New(perms, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -918,11 +918,11 @@ func TestACL_filterServiceNodes(t *testing.T) {
service "foo" {
policy = "read"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err := acl.New(acl.DenyAll(), policy)
perms, err := acl.New(acl.DenyAll(), policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -952,11 +952,11 @@ service "foo" {
node "node1" {
policy = "read"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err = acl.New(perms, policy)
perms, err = acl.New(perms, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1024,11 +1024,11 @@ func TestACL_filterNodeServices(t *testing.T) {
service "foo" {
policy = "read"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err := acl.New(acl.DenyAll(), policy)
perms, err := acl.New(acl.DenyAll(), policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1058,11 +1058,11 @@ service "foo" {
node "node1" {
policy = "read"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err = acl.New(perms, policy)
perms, err = acl.New(perms, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1130,11 +1130,11 @@ func TestACL_filterCheckServiceNodes(t *testing.T) {
service "foo" {
policy = "read"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err := acl.New(acl.DenyAll(), policy)
perms, err := acl.New(acl.DenyAll(), policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1167,11 +1167,11 @@ service "foo" {
node "node1" {
policy = "read"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err = acl.New(perms, policy)
perms, err = acl.New(perms, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1321,11 +1321,11 @@ func TestACL_filterNodeDump(t *testing.T) {
service "foo" {
policy = "read"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err := acl.New(acl.DenyAll(), policy)
perms, err := acl.New(acl.DenyAll(), policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1361,11 +1361,11 @@ service "foo" {
node "node1" {
policy = "read"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err = acl.New(perms, policy)
perms, err = acl.New(perms, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1563,11 +1563,11 @@ func TestACL_vetRegisterWithACL(t *testing.T) {
node "node" {
policy = "write"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err := acl.New(acl.DenyAll(), policy)
perms, err := acl.New(acl.DenyAll(), policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1608,11 +1608,11 @@ node "node" {
service "service" {
policy = "write"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err = acl.New(perms, policy)
perms, err = acl.New(perms, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1638,11 +1638,11 @@ service "service" {
service "other" {
policy = "write"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err = acl.New(perms, policy)
perms, err = acl.New(perms, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1712,11 +1712,11 @@ service "other" {
service "other" {
policy = "deny"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err = acl.New(perms, policy)
perms, err = acl.New(perms, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1742,11 +1742,11 @@ service "other" {
node "node" {
policy = "deny"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err = acl.New(perms, policy)
perms, err = acl.New(perms, policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
@ -1792,11 +1792,11 @@ node "node" {
service "service" {
policy = "write"
}
`)
`, nil)
if err != nil {
t.Fatalf("err %v", err)
}
perms, err := acl.New(acl.DenyAll(), policy)
perms, err := acl.New(acl.DenyAll(), policy, nil)
if err != nil {
t.Fatalf("err: %v", err)
}

3
agent/consul/catalog_endpoint.go
View File

@ -66,7 +66,7 @@ func (c *Catalog) Register(args *structs.RegisterRequest, reply *struct{}) error
// later if version 0.8 is enabled, so we can eventually just
// delete this and do all the ACL checks down there.
if args.Service.Service != structs.ConsulServiceName {
if rule != nil && !rule.ServiceWrite(args.Service.Service) {
if rule != nil && !rule.ServiceWrite(args.Service.Service, nil) {
return acl.ErrPermissionDenied
}
}
@ -149,6 +149,7 @@ func (c *Catalog) Deregister(args *structs.DeregisterRequest, reply *struct{}) e
if err := vetDeregisterWithACL(rule, args, ns, nc); err != nil {
return err
}
}
if _, err := c.srv.raftApply(structs.DeregisterRequestType, args); err != nil {

5
agent/consul/coordinate_endpoint.go
View File

@ -139,7 +139,10 @@ func (c *Coordinate) Update(args *structs.CoordinateUpdateRequest, reply *struct
return err
}
if rule != nil && c.srv.config.ACLEnforceVersion8 {
if !rule.NodeWrite(args.Node) {
// We don't enforce the sentinel policy here, since at this time
// sentinel only applies to creating or updating node or service
// info, not updating coordinates.
if !rule.NodeWrite(args.Node, nil) {
return acl.ErrPermissionDenied
}
}

12
agent/consul/filter_test.go
View File

@ -10,8 +10,8 @@ import (
func TestFilter_DirEnt(t *testing.T) {
t.Parallel()
policy, _ := acl.Parse(testFilterRules)
aclR, _ := acl.New(acl.DenyAll(), policy)
policy, _ := acl.Parse(testFilterRules, nil)
aclR, _ := acl.New(acl.DenyAll(), policy, nil)
type tcase struct {
in []string
@ -52,8 +52,8 @@ func TestFilter_DirEnt(t *testing.T) {
func TestFilter_Keys(t *testing.T) {
t.Parallel()
policy, _ := acl.Parse(testFilterRules)
aclR, _ := acl.New(acl.DenyAll(), policy)
policy, _ := acl.Parse(testFilterRules, nil)
aclR, _ := acl.New(acl.DenyAll(), policy, nil)
type tcase struct {
in []string
@ -84,8 +84,8 @@ func TestFilter_Keys(t *testing.T) {
func TestFilter_TxnResults(t *testing.T) {
t.Parallel()
policy, _ := acl.Parse(testFilterRules)
aclR, _ := acl.New(acl.DenyAll(), policy)
policy, _ := acl.Parse(testFilterRules, nil)
aclR, _ := acl.New(acl.DenyAll(), policy, nil)
type tcase struct {
in []string

13
agent/consul/kvs_endpoint.go
View File

@ -9,6 +9,7 @@ import (
"github.com/hashicorp/consul/agent/consul/state"
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/sentinel"
"github.com/hashicorp/go-memdb"
)
@ -22,6 +23,7 @@ type KVS struct {
// must only be done on the leader.
func kvsPreApply(srv *Server, rule acl.ACL, op api.KVOp, dirEnt *structs.DirEntry) (bool, error) {
// Verify the entry.
if dirEnt.Key == "" && op != api.KVDeleteTree {
return false, fmt.Errorf("Must provide key")
}
@ -46,7 +48,10 @@ func kvsPreApply(srv *Server, rule acl.ACL, op api.KVOp, dirEnt *structs.DirEntr
}
default:
if !rule.KeyWrite(dirEnt.Key) {
scope := func() map[string]interface{} {
return sentinel.ScopeKVUpsert(dirEnt.Key, dirEnt.Value, dirEnt.Flags)
}
if !rule.KeyWrite(dirEnt.Key, scope) {
return false, acl.ErrPermissionDenied
}
}
@ -115,11 +120,10 @@ func (k *KVS) Get(args *structs.KeyRequest, reply *structs.IndexedDirEntries) er
return err
}
acl, err := k.srv.resolveToken(args.Token)
aclRule, err := k.srv.resolveToken(args.Token)
if err != nil {
return err
}
return k.srv.blockingQuery(
&args.QueryOptions,
&reply.QueryMeta,
@ -128,9 +132,10 @@ func (k *KVS) Get(args *structs.KeyRequest, reply *structs.IndexedDirEntries) er
if err != nil {
return err
}
if acl != nil && !acl.KeyRead(args.Key) {
if aclRule != nil && !aclRule.KeyRead(args.Key) {
ent = nil
}
if ent == nil {
// Must provide non-zero index to prevent blocking
// Index 1 is impossible anyways (due to Raft internals)

9
agent/consul/server.go
View File

@ -25,6 +25,7 @@ import (
"github.com/hashicorp/consul/agent/structs"
"github.com/hashicorp/consul/agent/token"
"github.com/hashicorp/consul/lib"
"github.com/hashicorp/consul/sentinel"
"github.com/hashicorp/consul/tlsutil"
"github.com/hashicorp/consul/types"
"github.com/hashicorp/raft"
@ -75,6 +76,9 @@ const (
// Server is Consul server which manages the service discovery,
// health checking, DC forwarding, Raft, and multiple Serf pools.
type Server struct {
// sentinel is the Sentinel code engine (can be nil).
sentinel sentinel.Evaluator
// aclAuthCache is the authoritative ACL cache.
aclAuthCache *acl.Cache
@ -317,7 +321,8 @@ func NewServerLogger(config *Config, logger *log.Logger, tokens *token.Store) (*
s.statsFetcher = NewStatsFetcher(logger, s.connPool, s.config.Datacenter)
// Initialize the authoritative ACL cache.
s.aclAuthCache, err = acl.NewCache(aclCacheSize, s.aclLocalFault)
s.sentinel = sentinel.New(logger)
s.aclAuthCache, err = acl.NewCache(aclCacheSize, s.aclLocalFault, s.sentinel)
if err != nil {
s.Shutdown()
return nil, fmt.Errorf("Failed to create authoritative ACL cache: %v", err)
@ -329,7 +334,7 @@ func NewServerLogger(config *Config, logger *log.Logger, tokens *token.Store) (*
if s.IsACLReplicationEnabled() {
local = s.aclLocalFault
}
if s.aclCache, err = newACLCache(config, logger, s.RPC, local); err != nil {
if s.aclCache, err = newACLCache(config, logger, s.RPC, local, s.sentinel); err != nil {
s.Shutdown()
return nil, fmt.Errorf("Failed to create non-authoritative ACL cache: %v", err)
}

8
sentinel/evaluator.go Normal file
View File

@ -0,0 +1,8 @@
package sentinel
// Evaluator wraps the Sentinel evaluator from the HashiCorp Sentinel policy
// engine.
type Evaluator interface {
Compile(policy string) error
Execute(policy string, enforcementLevel string, data map[string]interface{}) bool
}

29
sentinel/scope.go Normal file
View File

@ -0,0 +1,29 @@
package sentinel
import (
"github.com/hashicorp/consul/api"
)
// ScopeFn is a callback that provides a sentinel scope. This is a callback
// so that if we don't run sentinel for some reason (not enabled or a basic
// policy check means we don't have to) then we don't spend the effort to make
// the map.
type ScopeFn func() map[string]interface{}
// ScopeKVUpsert returns the standard sentinel scope for a KV create or update.
func ScopeKVUpsert(key string, value []byte, flags uint64) map[string]interface{} {
return map[string]interface{}{
"key": key,
"value": string(value),
"flags": flags,
}
}
// ScopeCatalogUpsert returns the standard sentinel scope for a catalog create
// or update. Service is allowed to be nil.
func ScopeCatalogUpsert(node *api.Node, service *api.AgentService) map[string]interface{} {
return map[string]interface{}{
"node": node,
"service": service,
}
}

13
sentinel/sentinel_stub.go Normal file
View File

@ -0,0 +1,13 @@
// +build !ent
package sentinel
import (
"log"
)
// New returns a new instance of the Sentinel code engine. This is only available
// in Consul Enterprise so this version always returns nil.
func New(logger *log.Logger) Evaluator {
return nil
}