367 lines
10 KiB
Go
367 lines
10 KiB
Go
package ssh
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import (
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"fmt"
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"io/ioutil"
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"os/user"
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"strings"
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"testing"
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"golang.org/x/crypto/ssh"
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"github.com/hashicorp/vault/logical"
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logicaltest "github.com/hashicorp/vault/logical/testing"
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"github.com/hashicorp/vault/vault"
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"github.com/mitchellh/mapstructure"
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)
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const (
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testOTPKeyType = "otp"
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testDynamicKeyType = "dynamic"
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testCidr = "127.0.0.1/32"
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testDynamicRoleName = "testDynamicRoleName"
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testOTPRoleName = "testOTPRoleName"
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testKeyName = "testKeyName"
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testSharedPrivateKey = `
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-----BEGIN RSA PRIVATE KEY-----
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MIIEogIBAAKCAQEAvYvoRcWRxqOim5VZnuM6wHCbLUeiND0yaM1tvOl+Fsrz55DG
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A0OZp4RGAu1Fgr46E1mzxFz1+zY4UbcEExg+u21fpa8YH8sytSWW1FyuD8ICib0A
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/l8slmDMw4BkkGOtSlEqgscpkpv/TWZD1NxJWkPcULk8z6c7TOETn2/H9mL+v2RE
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mbE6NDEwJKfD3MvlpIqCP7idR+86rNBAODjGOGgyUbtFLT+K01XmDRALkV3V/nh+
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GltyjL4c6RU4zG2iRyV5RHlJtkml+UzUMkzr4IQnkCC32CC/wmtoo/IsAprpcHVe
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nkBn3eFQ7uND70p5n6GhN/KOh2j519JFHJyokwIDAQABAoIBAHX7VOvBC3kCN9/x
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+aPdup84OE7Z7MvpX6w+WlUhXVugnmsAAVDczhKoUc/WktLLx2huCGhsmKvyVuH+
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MioUiE+vx75gm3qGx5xbtmOfALVMRLopjCnJYf6EaFA0ZeQ+NwowNW7Lu0PHmAU8
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Z3JiX8IwxTz14DU82buDyewO7v+cEr97AnERe3PUcSTDoUXNaoNxjNpEJkKREY6h
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4hAY676RT/GsRcQ8tqe/rnCqPHNd7JGqL+207FK4tJw7daoBjQyijWuB7K5chSal
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oPInylM6b13ASXuOAOT/2uSUBWmFVCZPDCmnZxy2SdnJGbsJAMl7Ma3MUlaGvVI+
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Tfh1aQkCgYEA4JlNOabTb3z42wz6mz+Nz3JRwbawD+PJXOk5JsSnV7DtPtfgkK9y
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6FTQdhnozGWShAvJvc+C4QAihs9AlHXoaBY5bEU7R/8UK/pSqwzam+MmxmhVDV7G
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IMQPV0FteoXTaJSikhZ88mETTegI2mik+zleBpVxvfdhE5TR+lq8Br0CgYEA2AwJ
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CUD5CYUSj09PluR0HHqamWOrJkKPFPwa+5eiTTCzfBBxImYZh7nXnWuoviXC0sg2
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AuvCW+uZ48ygv/D8gcz3j1JfbErKZJuV+TotK9rRtNIF5Ub7qysP7UjyI7zCssVM
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kuDd9LfRXaB/qGAHNkcDA8NxmHW3gpln4CFdSY8CgYANs4xwfercHEWaJ1qKagAe
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rZyrMpffAEhicJ/Z65lB0jtG4CiE6w8ZeUMWUVJQVcnwYD+4YpZbX4S7sJ0B8Ydy
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AhkSr86D/92dKTIt2STk6aCN7gNyQ1vW198PtaAWH1/cO2UHgHOy3ZUt5X/Uwxl9
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cex4flln+1Viumts2GgsCQKBgCJH7psgSyPekK5auFdKEr5+Gc/jB8I/Z3K9+g4X
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5nH3G1PBTCJYLw7hRzw8W/8oALzvddqKzEFHphiGXK94Lqjt/A4q1OdbCrhiE68D
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My21P/dAKB1UYRSs9Y8CNyHCjuZM9jSMJ8vv6vG/SOJPsnVDWVAckAbQDvlTHC9t
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O98zAoGAcbW6uFDkrv0XMCpB9Su3KaNXOR0wzag+WIFQRXCcoTvxVi9iYfUReQPi
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oOyBJU/HMVvBfv4g+OVFLVgSwwm6owwsouZ0+D/LasbuHqYyqYqdyPJQYzWA2Y+F
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+B6f4RoPdSXj24JHPg/ioRxjaj094UXJxua2yfkcecGNEuBQHSs=
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-----END RSA PRIVATE KEY-----
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`
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)
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var testIP string
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var testOTP string
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var testPort string
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var testUserName string
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var testAdminUser string
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var testInstallScript string
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// Starts the server and initializes the servers IP address,
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// port and usernames to be used by the test cases.
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func init() {
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addr, err := vault.StartTestServer()
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if err != nil {
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panic(fmt.Sprintf("error starting mock server:%s", err))
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}
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input := strings.Split(addr, ":")
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testIP = input[0]
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testPort = input[1]
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u, err := user.Current()
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if err != nil {
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panic(fmt.Sprintf("error getting current username: '%s'", err))
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}
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testUserName = u.Username
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testAdminUser = u.Username
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scriptBytes, err := ioutil.ReadFile("scripts/key-install-linux.sh")
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if err != nil {
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panic(fmt.Sprintf("error reading install script file: '%s'", err))
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}
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testInstallScript = string(scriptBytes)
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}
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func TestSSHBackend_Lookup(t *testing.T) {
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data := map[string]interface{}{
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"ip": testIP,
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}
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otpData := map[string]interface{}{
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"key_type": testOTPKeyType,
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"default_user": testUserName,
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"cidr": testCidr,
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}
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dynamicData := map[string]interface{}{
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"key_type": testDynamicKeyType,
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"key": testKeyName,
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"admin_user": testAdminUser,
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"cidr": testCidr,
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"install_script": testInstallScript,
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}
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logicaltest.Test(t, logicaltest.TestCase{
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Factory: Factory,
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Steps: []logicaltest.TestStep{
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testLookupRead(t, data, 0),
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testRoleWrite(t, testOTPRoleName, otpData),
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testLookupRead(t, data, 1),
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testNamedKeysWrite(t),
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testRoleWrite(t, testDynamicRoleName, dynamicData),
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testLookupRead(t, data, 2),
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testRoleDelete(t, testOTPRoleName),
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testLookupRead(t, data, 1),
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testRoleDelete(t, testDynamicRoleName),
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testLookupRead(t, data, 0),
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},
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})
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}
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func TestSSHBackend_DynamicKeyCreate(t *testing.T) {
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logicaltest.Test(t, logicaltest.TestCase{
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Factory: Factory,
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Steps: []logicaltest.TestStep{
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testNamedKeysWrite(t),
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testNewDynamicKeyRole(t),
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testDynamicKeyCredsCreate(t),
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},
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})
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}
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func TestSSHBackend_OTPRoleCrud(t *testing.T) {
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data := map[string]interface{}{
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"key_type": testOTPKeyType,
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"default_user": testUserName,
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"cidr": testCidr,
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}
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logicaltest.Test(t, logicaltest.TestCase{
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Factory: Factory,
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Steps: []logicaltest.TestStep{
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testRoleWrite(t, testOTPRoleName, data),
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testRoleRead(t, testOTPRoleName, data),
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testRoleDelete(t, testOTPRoleName),
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testRoleRead(t, testOTPRoleName, nil),
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},
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})
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}
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func TestSSHBackend_DynamicRoleCrud(t *testing.T) {
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data := map[string]interface{}{
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"key_type": testDynamicKeyType,
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"key": testKeyName,
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"admin_user": testAdminUser,
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"cidr": testCidr,
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"install_script": testInstallScript,
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}
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logicaltest.Test(t, logicaltest.TestCase{
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Factory: Factory,
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Steps: []logicaltest.TestStep{
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testNamedKeysWrite(t),
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testRoleWrite(t, testDynamicRoleName, data),
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testRoleRead(t, testDynamicRoleName, data),
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testRoleDelete(t, testDynamicRoleName),
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testRoleRead(t, testDynamicRoleName, nil),
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},
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})
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}
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func TestSSHBackend_NamedKeysCrud(t *testing.T) {
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logicaltest.Test(t, logicaltest.TestCase{
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Factory: Factory,
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Steps: []logicaltest.TestStep{
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testNamedKeysRead(t, ""),
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testNamedKeysWrite(t),
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testNamedKeysRead(t, testSharedPrivateKey),
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testNamedKeysDelete(t),
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},
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})
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}
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func TestSSHBackend_OTPCreate(t *testing.T) {
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data := map[string]interface{}{
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"key_type": testOTPKeyType,
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"default_user": testUserName,
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"cidr": testCidr,
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}
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logicaltest.Test(t, logicaltest.TestCase{
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Factory: Factory,
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Steps: []logicaltest.TestStep{
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testRoleWrite(t, testOTPRoleName, data),
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testCredsWrite(t, testOTPRoleName),
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},
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})
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}
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func testCredsWrite(t *testing.T, name string) logicaltest.TestStep {
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data := map[string]interface{}{
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"ip": testIP,
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}
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return logicaltest.TestStep{
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Operation: logical.WriteOperation,
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Path: fmt.Sprintf("creds/%s", name),
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Data: data,
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Check: func(resp *logical.Response) error {
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if resp == nil {
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return fmt.Errorf("response is nil")
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}
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if resp.Data == nil {
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return fmt.Errorf("data is nil")
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}
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if resp.Data["key_type"] != KeyTypeOTP {
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return fmt.Errorf("Incorrect key_type")
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}
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if resp.Data["key"] == nil {
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return fmt.Errorf("Invalid key")
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}
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testOTP = resp.Data["key"].(string)
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return nil
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},
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}
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}
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func testNamedKeysRead(t *testing.T, key string) logicaltest.TestStep {
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return logicaltest.TestStep{
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Operation: logical.ReadOperation,
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Path: fmt.Sprintf("keys/%s", testKeyName),
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Check: func(resp *logical.Response) error {
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if key != "" {
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if resp == nil || resp.Data == nil {
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return fmt.Errorf("Key missing in response")
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}
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var d struct {
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Key string `mapstructure:"key"`
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}
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if err := mapstructure.Decode(resp.Data, &d); err != nil {
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return err
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}
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if d.Key != key {
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return fmt.Errorf("Key mismatch")
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}
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}
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return nil
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},
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}
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}
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func testNamedKeysWrite(t *testing.T) logicaltest.TestStep {
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return logicaltest.TestStep{
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Operation: logical.WriteOperation,
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Path: fmt.Sprintf("keys/%s", testKeyName),
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Data: map[string]interface{}{
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"key": testSharedPrivateKey,
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},
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}
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}
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func testNamedKeysDelete(t *testing.T) logicaltest.TestStep {
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return logicaltest.TestStep{
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Operation: logical.DeleteOperation,
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Path: fmt.Sprintf("keys/%s", testKeyName),
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}
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}
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func testLookupRead(t *testing.T, data map[string]interface{}, length int) logicaltest.TestStep {
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return logicaltest.TestStep{
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Operation: logical.WriteOperation,
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Path: "lookup",
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Data: data,
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Check: func(resp *logical.Response) error {
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if resp.Data == nil || resp.Data["roles"] == nil {
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return fmt.Errorf("Missing roles information")
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}
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if len(resp.Data["roles"].([]string)) != length {
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return fmt.Errorf("Role information incorrect")
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}
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return nil
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},
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}
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}
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func testRoleWrite(t *testing.T, name string, data map[string]interface{}) logicaltest.TestStep {
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return logicaltest.TestStep{
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Operation: logical.WriteOperation,
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Path: "roles/" + name,
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Data: data,
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}
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}
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func testRoleRead(t *testing.T, name string, data map[string]interface{}) logicaltest.TestStep {
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return logicaltest.TestStep{
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Operation: logical.ReadOperation,
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Path: "roles/" + name,
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Check: func(resp *logical.Response) error {
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if resp == nil {
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if data == nil {
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return nil
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}
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return fmt.Errorf("bad: %#v", resp)
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}
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var d sshRole
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if err := mapstructure.Decode(resp.Data, &d); err != nil {
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return fmt.Errorf("error decoding response:%s", err)
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}
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if name == testOTPRoleName {
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if d.KeyType != data["key_type"] || d.DefaultUser != data["default_user"] || d.CIDR != data["cidr"] {
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return fmt.Errorf("data mismatch. bad: %#v", resp)
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}
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} else {
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if d.AdminUser != data["admin_user"] || d.CIDR != data["cidr"] || d.KeyName != data["key"] || d.KeyType != data["key_type"] {
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return fmt.Errorf("data mismatch. bad: %#v", resp)
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}
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}
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return nil
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},
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}
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}
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func testRoleDelete(t *testing.T, name string) logicaltest.TestStep {
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return logicaltest.TestStep{
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Operation: logical.DeleteOperation,
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Path: "roles/" + name,
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}
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}
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func testNewDynamicKeyRole(t *testing.T) logicaltest.TestStep {
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return logicaltest.TestStep{
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Operation: logical.WriteOperation,
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Path: fmt.Sprintf("roles/%s", testDynamicRoleName),
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Data: map[string]interface{}{
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"key_type": "dynamic",
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"key": testKeyName,
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"admin_user": testAdminUser,
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"cidr": testCidr,
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"port": testPort,
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"install_script": testInstallScript,
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},
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}
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}
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func testDynamicKeyCredsCreate(t *testing.T) logicaltest.TestStep {
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return logicaltest.TestStep{
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Operation: logical.WriteOperation,
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Path: fmt.Sprintf("creds/%s", testDynamicRoleName),
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Data: map[string]interface{}{
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"username": testUserName,
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"ip": testIP,
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},
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Check: func(resp *logical.Response) error {
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var d struct {
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Key string `mapstructure:"key"`
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}
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if err := mapstructure.Decode(resp.Data, &d); err != nil {
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return err
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}
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if d.Key == "" {
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return fmt.Errorf("Generated key is an empty string")
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}
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_, err := ssh.ParsePrivateKey([]byte(d.Key))
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if err != nil {
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return fmt.Errorf("Generated key is invalid")
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}
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return nil
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},
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}
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}
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