diff options
Diffstat (limited to 'demos')
| -rw-r--r-- | demos/demo_server.py | 37 | ||||
| -rw-r--r--[-rwxr-xr-x] | demos/demo_sftp.py | 19 | ||||
| -rwxr-xr-x | demos/demo_simple.py | 19 |
3 files changed, 64 insertions, 11 deletions
diff --git a/demos/demo_server.py b/demos/demo_server.py index bb35258b..74e4677e 100644 --- a/demos/demo_server.py +++ b/demos/demo_server.py @@ -66,9 +66,39 @@ class Server (paramiko.ServerInterface): if (username == 'robey') and (key == self.good_pub_key): return paramiko.AUTH_SUCCESSFUL return paramiko.AUTH_FAILED + + def check_auth_gssapi_with_mic(self, username, + gss_authenticated=paramiko.AUTH_FAILED, + cc_file=None): + """ + @note: We are just checking in L{AuthHandler} that the given user is + a valid krb5 principal! + We don't check if the krb5 principal is allowed to log in on + the server, because there is no way to do that in python. So + if you develop your own SSH server with paramiko for a certain + platform like Linux, you should call C{krb5_kuserok()} in your + local kerberos library to make sure that the krb5_principal has + an account on the server and is allowed to log in as a user. + @see: U{krb5_kuserok() man page <http://www.unix.com/man-page/all/3/krb5_kuserok/>} + """ + if gss_authenticated == paramiko.AUTH_SUCCESSFUL: + return paramiko.AUTH_SUCCESSFUL + return paramiko.AUTH_FAILED + + def check_auth_gssapi_keyex(self, username, + gss_authenticated=paramiko.AUTH_FAILED, + cc_file=None): + if gss_authenticated == paramiko.AUTH_SUCCESSFUL: + return paramiko.AUTH_SUCCESSFUL + return paramiko.AUTH_FAILED + + def enable_auth_gssapi(self): + UseGSSAPI = True + GSSAPICleanupCredentials = False + return UseGSSAPI def get_allowed_auths(self, username): - return 'password,publickey' + return 'gssapi-keyex,gssapi-with-mic,password,publickey' def check_channel_shell_request(self, channel): self.event.set() @@ -79,6 +109,8 @@ class Server (paramiko.ServerInterface): return True +DoGSSAPIKeyExchange = True + # now connect try: sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) @@ -101,7 +133,8 @@ except Exception as e: print('Got a connection!') try: - t = paramiko.Transport(client) + t = paramiko.Transport(client, gss_kex=DoGSSAPIKeyExchange) + t.set_gss_host(socket.getfqdn("")) try: t.load_server_moduli() except: diff --git a/demos/demo_sftp.py b/demos/demo_sftp.py index a34f2b19..2cb44701 100755..100644 --- a/demos/demo_sftp.py +++ b/demos/demo_sftp.py @@ -34,6 +34,11 @@ from paramiko.py3compat import input # setup logging paramiko.util.log_to_file('demo_sftp.log') +# Paramiko client configuration +UseGSSAPI = True # enable GSS-API / SSPI authentication +DoGSSAPIKeyExchange = True +Port = 22 + # get hostname username = '' if len(sys.argv) > 1: @@ -45,10 +50,10 @@ else: if len(hostname) == 0: print('*** Hostname required.') sys.exit(1) -port = 22 + if hostname.find(':') >= 0: hostname, portstr = hostname.split(':') - port = int(portstr) + Port = int(portstr) # get username @@ -57,7 +62,10 @@ if username == '': username = input('Username [%s]: ' % default_username) if len(username) == 0: username = default_username -password = getpass.getpass('Password for %s@%s: ' % (username, hostname)) +if not UseGSSAPI: + password = getpass.getpass('Password for %s@%s: ' % (username, hostname)) +else: + password = None # get host key, if we know one @@ -81,8 +89,9 @@ if hostname in host_keys: # now, connect and use paramiko Transport to negotiate SSH2 across the connection try: - t = paramiko.Transport((hostname, port)) - t.connect(username=username, password=password, hostkey=hostkey) + t = paramiko.Transport((hostname, Port)) + t.connect(hostkey, username, password, gss_host=socket.getfqdn(hostname), + gss_auth=UseGSSAPI, gss_kex=DoGSSAPIKeyExchange) sftp = paramiko.SFTPClient.from_transport(t) # dirlist on remote host diff --git a/demos/demo_simple.py b/demos/demo_simple.py index ae631e43..100e15f5 100755 --- a/demos/demo_simple.py +++ b/demos/demo_simple.py @@ -36,6 +36,10 @@ except ImportError: # setup logging paramiko.util.log_to_file('demo_simple.log') +# Paramiko client configuration +UseGSSAPI = True # enable GSS-API / SSPI authentication +DoGSSAPIKeyExchange = True +Port = 22 # get hostname username = '' @@ -48,10 +52,10 @@ else: if len(hostname) == 0: print('*** Hostname required.') sys.exit(1) -port = 22 + if hostname.find(':') >= 0: hostname, portstr = hostname.split(':') - port = int(portstr) + Port = int(portstr) # get username @@ -60,7 +64,8 @@ if username == '': username = input('Username [%s]: ' % default_username) if len(username) == 0: username = default_username -password = getpass.getpass('Password for %s@%s: ' % (username, hostname)) +if not UseGSSAPI: + password = getpass.getpass('Password for %s@%s: ' % (username, hostname)) # now, connect and use paramiko Client to negotiate SSH2 across the connection @@ -69,7 +74,13 @@ try: client.load_system_host_keys() client.set_missing_host_key_policy(paramiko.WarningPolicy()) print('*** Connecting...') - client.connect(hostname, port, username, password) + if not UseGSSAPI: + client.connect(hostname, Port, username, password) + else: + # SSPI works only with the FQDN of the target host + hostname = socket.getfqdn(hostname) + client.connect(hostname, Port, username, gss_auth=UseGSSAPI, + gss_kex=DoGSSAPIKeyExchange) chan = client.invoke_shell() print(repr(client.get_transport())) print('*** Here we go!\n') |