if c.IsTemp() || c.IsServiceAccount() {
			continue
		}
		var policies []string
		mp, ok := cache.iamUserPolicyMap.Load(k)
		if ok {
			policies = append(policies, mp.Policies)
			for _, group := range cache.iamUserGroupMemberships[k].ToSlice() {
				if nmp, ok := cache.iamGroupPolicyMap.Load(group); ok {
					policies = append(policies, nmp.Policies)
				}
			}
		}

				}
				// {"acl": "public-read" } is an alternate way to indicate - [ "eq", "$acl", "public-read" ]
				// In this case we will just collapse this into "eq" for all use cases.
				parsedPolicy.Conditions.Policies = append(parsedPolicy.Conditions.Policies, struct {
					Operator string
					Key      string
					Value    string
				}{
					policyCondEqual, "$" + strings.ToLower(k), toString(v),
				})
			}

	if !isOwnerDerived && len(policies) == 0 {
		return false
	}

	// 2. Combine the mapped policies into a single combined policy.

	var combinedPolicy policy.Policy
	// Policies were found, evaluate all of them.
	if !isOwnerDerived {
		availablePoliciesStr, c := sys.store.MergePolicies(strings.Join(policies, ","))
		if availablePoliciesStr == "" {
			// all policies presented in the claim should exist

## Specifying Access Control with IAM Policies

}

// Check request auth type verifies the incoming http request
//   - validates the request signature
//   - validates the policy action if anonymous tests bucket policies if any,
//     for authenticated requests validates IAM policies.
//
// returns APIErrorCode if any to be replied to the client.

### List of Amazon S3 Bucket APIs not supported on MinIO

- BucketACL (Use [bucket policies](https://docs.min.io/community/minio-object-store/administration/identity-access-management/policy-based-access-control.html) instead)

Use [`mc admin policy`](https://docs.min.io/community/minio-object-store/reference/minio-mc-admin/mc-admin-policy.html) to create canned policies. Server provides a default set of canned policies namely `writeonly`, `readonly` and `readwrite` *(these policies apply to all resources on the server)*. These can be overridden by custom policies using `mc admin policy` command.

	defer cancel()

	policies, err := s.adm.ListCannedPolicies(ctx)
	if err != nil {
		c.Fatalf("unable to list policies: %v", err)
	}

	defaultPolicies := []string{
		"readwrite",
		"readonly",
		"writeonly",
		"diagnostics",
		"consoleAdmin",
	}

	for _, v := range defaultPolicies {
		if _, ok := policies[v]; !ok {
			c.Fatalf("Failed to find %s in policies list", v)

// isIAMPolicyReplicated returns true if count of replicated IAM policies matches total
// number of sites and IAM policies are identical.
func isIAMPolicyReplicated(cntReplicated, total int, policies []*policy.Policy) bool {
	if cntReplicated > 0 && cntReplicated != total {
		return false
	}
	// check if policies match between sites
	var prev *policy.Policy
	for i, p := range policies {
		if i == 0 {
			prev = p
			continue

		// part of JWT custom claims.
		policySet, ok := policy.GetPoliciesFromClaims(claims, iamPolicyClaimNameOpenID())
		policies := strings.Join(policySet.ToSlice(), ",")
		if ok {
			policyName = globalIAMSys.CurrentPolicies(policies)
		}

		if newGlobalAuthZPluginFn() == nil {
			if !ok {
				writeSTSErrorResponse(ctx, w, ErrSTSInvalidParameterValue,