Module netmiko.ciena

Expand source code
from netmiko.ciena.ciena_saos import (
    CienaSaosSSH,
    CienaSaosTelnet,
    CienaSaosFileTransfer,
)

__all__ = ["CienaSaosSSH", "CienaSaosTelnet", "CienaSaosFileTransfer"]

Sub-modules

netmiko.ciena.ciena_saos

Ciena SAOS support.

Classes

class CienaSaosFileTransfer (ssh_conn: BaseConnection, source_file: str, dest_file: str, file_system: Optional[str] = None, direction: str = 'put', **kwargs: Any)

Ciena SAOS SCP File Transfer driver.

Expand source code
class CienaSaosFileTransfer(BaseFileTransfer):
    """Ciena SAOS SCP File Transfer driver."""

    def __init__(
        self,
        ssh_conn: BaseConnection,
        source_file: str,
        dest_file: str,
        file_system: Optional[str] = None,
        direction: str = "put",
        **kwargs: Any,
    ) -> None:
        if file_system is None:
            file_system = f"/tmp/users/{ssh_conn.username}"
        return super().__init__(
            ssh_conn=ssh_conn,
            source_file=source_file,
            dest_file=dest_file,
            file_system=file_system,
            direction=direction,
            **kwargs,
        )

    def remote_space_available(self, search_pattern: str = "") -> int:
        """
        Return space available on Ciena SAOS

        Output should only have the file-system that matches {self.file_system}

        Filesystem           1K-blocks      Used Available Use% Mounted on
        tmpfs                  1048576       648   1047928   0% /tmp
        """
        remote_cmd = f"file vols -P {self.file_system}"
        remote_output = self.ssh_ctl_chan._send_command_str(remote_cmd)
        remote_output = remote_output.strip()
        err_msg = (
            f"Parsing error, unexpected output from {remote_cmd}:\n{remote_output}"
        )

        # First line is the header; file_system_line is the output we care about
        header_line, filesystem_line = remote_output.splitlines()

        filesystem, _, _, space_avail, *_ = header_line.split()
        if "Filesystem" != filesystem or "Avail" not in space_avail:
            # Filesystem 1K-blocks Used Available Use% Mounted on
            raise ValueError(err_msg)

        # Normalize output - in certain outputs ciena will line wrap (this fixes that)
        # Strip the extra newline
        # /dev/mapper/EN--VOL-config
        #                  4096      1476      2620  36% /etc/hosts
        filesystem_line = re.sub(r"(^\S+$)\n", r"\1", filesystem_line, flags=re.M)

        # Checks to make sure what was returned is what we expect
        _, k_blocks, used, space_avail, _, _ = filesystem_line.split()
        for integer_check in (k_blocks, used, space_avail):
            try:
                int(integer_check)
            except ValueError:
                raise ValueError(err_msg)

        return int(space_avail) * 1024

    def check_file_exists(self, remote_cmd: str = "") -> bool:
        """Check if the dest_file already exists on the file system (return boolean)."""
        if self.direction == "put":
            if not remote_cmd:
                remote_cmd = f"file ls {self.file_system}/{self.dest_file}"
            remote_out = self.ssh_ctl_chan._send_command_str(remote_cmd)
            search_string = re.escape(f"{self.file_system}/{self.dest_file}")
            if "ERROR" in remote_out:
                return False
            elif re.search(search_string, remote_out):
                return True
            else:
                raise ValueError("Unexpected output from check_file_exists")
        elif self.direction == "get":
            return os.path.exists(self.dest_file)
        else:
            raise ValueError("Unexpected value for self.direction")

    def remote_file_size(
        self, remote_cmd: str = "", remote_file: Optional[str] = None
    ) -> int:
        """Get the file size of the remote file."""
        if remote_file is None:
            if self.direction == "put":
                remote_file = self.dest_file
            elif self.direction == "get":
                remote_file = self.source_file

        remote_file = f"{self.file_system}/{remote_file}"

        if not remote_cmd:
            remote_cmd = f"file ls -l {remote_file}"

        remote_out = self.ssh_ctl_chan._send_command_str(remote_cmd)

        if "No such file or directory" in remote_out:
            raise IOError("Unable to find file on remote system")

        escape_file_name = re.escape(remote_file)
        pattern = r"^.* ({}).*$".format(escape_file_name)
        match = re.search(pattern, remote_out, flags=re.M)
        if match:
            # Format: -rw-r--r--  1 pyclass  wheel  12 Nov  5 19:07 /var/tmp/test3.txt
            line = match.group(0)
            file_size = line.split()[4]
            return int(file_size)

        raise ValueError(
            "Search pattern not found for remote file size during SCP transfer."
        )

    def remote_md5(self, base_cmd: str = "", remote_file: Optional[str] = None) -> str:
        """Calculate remote MD5 and returns the hash.

        This command can be CPU intensive on the remote device.
        """
        if base_cmd == "":
            base_cmd = "md5sum"
        if remote_file is None:
            if self.direction == "put":
                remote_file = self.dest_file
            elif self.direction == "get":
                remote_file = self.source_file

        remote_md5_cmd = f"{base_cmd} {self.file_system}/{remote_file}"

        self.ssh_ctl_chan._enter_shell()
        dest_md5 = self.ssh_ctl_chan._send_command_str(
            remote_md5_cmd, expect_string=r"[$#>]"
        )
        self.ssh_ctl_chan._return_cli()
        dest_md5 = self.process_md5(dest_md5, pattern=r"([0-9a-f]+)\s+")
        return dest_md5

    def enable_scp(self, cmd: str = "system server scp enable") -> None:
        return super().enable_scp(cmd=cmd)

    def disable_scp(self, cmd: str = "system server scp disable") -> None:
        return super().disable_scp(cmd=cmd)

Ancestors

Methods

def remote_space_available(self, search_pattern: str = '') ‑> int

Return space available on Ciena SAOS

Output should only have the file-system that matches {self.file_system}

Filesystem 1K-blocks Used Available Use% Mounted on tmpfs 1048576 648 1047928 0% /tmp

Expand source code
def remote_space_available(self, search_pattern: str = "") -> int:
    """
    Return space available on Ciena SAOS

    Output should only have the file-system that matches {self.file_system}

    Filesystem           1K-blocks      Used Available Use% Mounted on
    tmpfs                  1048576       648   1047928   0% /tmp
    """
    remote_cmd = f"file vols -P {self.file_system}"
    remote_output = self.ssh_ctl_chan._send_command_str(remote_cmd)
    remote_output = remote_output.strip()
    err_msg = (
        f"Parsing error, unexpected output from {remote_cmd}:\n{remote_output}"
    )

    # First line is the header; file_system_line is the output we care about
    header_line, filesystem_line = remote_output.splitlines()

    filesystem, _, _, space_avail, *_ = header_line.split()
    if "Filesystem" != filesystem or "Avail" not in space_avail:
        # Filesystem 1K-blocks Used Available Use% Mounted on
        raise ValueError(err_msg)

    # Normalize output - in certain outputs ciena will line wrap (this fixes that)
    # Strip the extra newline
    # /dev/mapper/EN--VOL-config
    #                  4096      1476      2620  36% /etc/hosts
    filesystem_line = re.sub(r"(^\S+$)\n", r"\1", filesystem_line, flags=re.M)

    # Checks to make sure what was returned is what we expect
    _, k_blocks, used, space_avail, _, _ = filesystem_line.split()
    for integer_check in (k_blocks, used, space_avail):
        try:
            int(integer_check)
        except ValueError:
            raise ValueError(err_msg)

    return int(space_avail) * 1024

Inherited members

class CienaSaosSSH (ip: str = '', host: str = '', username: str = '', password: Optional[str] = None, secret: str = '', port: Optional[int] = None, device_type: str = '', verbose: bool = False, global_delay_factor: float = 1.0, global_cmd_verify: Optional[bool] = None, use_keys: bool = False, key_file: Optional[str] = None, pkey: Optional[paramiko.pkey.PKey] = None, passphrase: Optional[str] = None, disabled_algorithms: Optional[Dict[str, Any]] = None, disable_sha2_fix: bool = False, allow_agent: bool = False, ssh_strict: bool = False, system_host_keys: bool = False, alt_host_keys: bool = False, alt_key_file: str = '', ssh_config_file: Optional[str] = None, conn_timeout: int = 10, auth_timeout: Optional[int] = None, banner_timeout: int = 15, blocking_timeout: int = 20, timeout: int = 100, session_timeout: int = 60, read_timeout_override: Optional[float] = None, keepalive: int = 0, default_enter: Optional[str] = None, response_return: Optional[str] = None, serial_settings: Optional[Dict[str, Any]] = None, fast_cli: bool = True, session_log: Optional[SessionLog] = None, session_log_record_writes: bool = False, session_log_file_mode: str = 'write', allow_auto_change: bool = False, encoding: str = 'utf-8', sock: Optional[socket.socket] = None, sock_telnet: Optional[Dict[str, Any]] = None, auto_connect: bool = True, delay_factor_compat: bool = False, disable_lf_normalization: bool = False)

Ciena SAOS support.

Implements methods for interacting Ciena Saos devices.

    Initialize attributes for establishing connection to target device.

    :param ip: IP address of target device. Not required if <code>host</code> is
        provided.

    :param host: Hostname of target device. Not required if <code>ip</code> is
            provided.

    :param username: Username to authenticate against target device if
            required.

    :param password: Password to authenticate against target device if
            required.

    :param secret: The enable password if target device requires one.

    :param port: The destination port used to connect to the target
            device.

    :param device_type: Class selection based on device type.

    :param verbose: Enable additional messages to standard output.

    :param global_delay_factor: Multiplication factor affecting Netmiko delays (default: 1).

    :param use_keys: Connect to target device using SSH keys.

    :param key_file: Filename path of the SSH key file to use.

    :param pkey: SSH key object to use.

    :param passphrase: Passphrase to use for encrypted key; password will be used for key
            decryption if not specified.

    :param disabled_algorithms: Dictionary of SSH algorithms to disable. Refer to the Paramiko
            documentation for a description of the expected format.

    :param disable_sha2_fix: Boolean that fixes Paramiko issue with missing server-sig-algs
        <https://github.com/paramiko/paramiko/issues/1961> (default: False)

    :param allow_agent: Enable use of SSH key-agent.

    :param ssh_strict: Automatically reject unknown SSH host keys (default: False, which
            means unknown SSH host keys will be accepted).

    :param system_host_keys: Load host keys from the users known_hosts file.

    :param alt_host_keys: If <code>True</code> host keys will be loaded from the file specified in
            alt_key_file.

    :param alt_key_file: SSH host key file to use (if alt_host_keys=True).

    :param ssh_config_file: File name of OpenSSH configuration file.

    :param conn_timeout: TCP connection timeout.

    :param session_timeout: Set a timeout for parallel requests.

    :param auth_timeout: Set a timeout (in seconds) to wait for an authentication response.

    :param banner_timeout: Set a timeout to wait for the SSH banner (pass to Paramiko).

    :param read_timeout_override: Set a timeout that will override the default read_timeout
            of both send_command and send_command_timing. This is useful for 3rd party
            libraries where directly accessing method arguments might be impractical.

    :param keepalive: Send SSH keepalive packets at a specific interval, in seconds.
            Currently defaults to 0, for backwards compatibility (it will not attempt
            to keep the connection alive).

    :param default_enter: Character(s) to send to correspond to enter key (default:

).

    :param response_return: Character(s) to use in normalized return data to represent
            enter key (default:

)

    :param serial_settings: Dictionary of settings for use with serial port (pySerial).

    :param fast_cli: Provide a way to optimize for performance. Converts select_delay_factor
            to select smallest of global and specific. Sets default global_delay_factor to .1
            (default: True)

    :param session_log: File path, SessionLog object, or BufferedIOBase subclass object
            to write the session log to.

    :param session_log_record_writes: The session log generally only records channel reads due
            to eliminate command duplication due to command echo. You can enable this if you
            want to record both channel reads and channel writes in the log (default: False).

    :param session_log_file_mode: "write" or "append" for session_log file mode
            (default: "write")

    :param allow_auto_change: Allow automatic configuration changes for terminal settings.
            (default: False)

    :param encoding: Encoding to be used when writing bytes to the output channel.
            (default: "utf-8")

    :param sock: An open socket or socket-like object (such as a <code>.Channel</code>) to use for
            communication to the target host (default: None).

    :param sock_telnet: A dictionary of telnet socket parameters (SOCKS proxy). See
            telnet_proxy.py code for details.

    :param global_cmd_verify: Control whether command echo verification is enabled or disabled
            (default: None). Global attribute takes precedence over function <code>cmd\_verify</code>
            argument. Value of <code>None</code> indicates to use function <code>cmd\_verify</code> argument.

    :param auto_connect: Control whether Netmiko automatically establishes the connection as
            part of the object creation (default: True).

    :param delay_factor_compat: Set send_command and send_command_timing back to using Netmiko
            3.x behavior for delay_factor/global_delay_factor/max_loops. This argument will be
            eliminated in Netmiko 5.x (default: False).

    :param disable_lf_normalization: Disable Netmiko's linefeed normalization behavior
            (default: False)
Expand source code
class CienaSaosSSH(CienaSaosBase):
    pass

Ancestors

Inherited members

class CienaSaosTelnet (*args: Any, **kwargs: Any)

Ciena SAOS support.

Implements methods for interacting Ciena Saos devices.

    Initialize attributes for establishing connection to target device.

    :param ip: IP address of target device. Not required if <code>host</code> is
        provided.

    :param host: Hostname of target device. Not required if <code>ip</code> is
            provided.

    :param username: Username to authenticate against target device if
            required.

    :param password: Password to authenticate against target device if
            required.

    :param secret: The enable password if target device requires one.

    :param port: The destination port used to connect to the target
            device.

    :param device_type: Class selection based on device type.

    :param verbose: Enable additional messages to standard output.

    :param global_delay_factor: Multiplication factor affecting Netmiko delays (default: 1).

    :param use_keys: Connect to target device using SSH keys.

    :param key_file: Filename path of the SSH key file to use.

    :param pkey: SSH key object to use.

    :param passphrase: Passphrase to use for encrypted key; password will be used for key
            decryption if not specified.

    :param disabled_algorithms: Dictionary of SSH algorithms to disable. Refer to the Paramiko
            documentation for a description of the expected format.

    :param disable_sha2_fix: Boolean that fixes Paramiko issue with missing server-sig-algs
        <https://github.com/paramiko/paramiko/issues/1961> (default: False)

    :param allow_agent: Enable use of SSH key-agent.

    :param ssh_strict: Automatically reject unknown SSH host keys (default: False, which
            means unknown SSH host keys will be accepted).

    :param system_host_keys: Load host keys from the users known_hosts file.

    :param alt_host_keys: If <code>True</code> host keys will be loaded from the file specified in
            alt_key_file.

    :param alt_key_file: SSH host key file to use (if alt_host_keys=True).

    :param ssh_config_file: File name of OpenSSH configuration file.

    :param conn_timeout: TCP connection timeout.

    :param session_timeout: Set a timeout for parallel requests.

    :param auth_timeout: Set a timeout (in seconds) to wait for an authentication response.

    :param banner_timeout: Set a timeout to wait for the SSH banner (pass to Paramiko).

    :param read_timeout_override: Set a timeout that will override the default read_timeout
            of both send_command and send_command_timing. This is useful for 3rd party
            libraries where directly accessing method arguments might be impractical.

    :param keepalive: Send SSH keepalive packets at a specific interval, in seconds.
            Currently defaults to 0, for backwards compatibility (it will not attempt
            to keep the connection alive).

    :param default_enter: Character(s) to send to correspond to enter key (default:

).

    :param response_return: Character(s) to use in normalized return data to represent
            enter key (default:

)

    :param serial_settings: Dictionary of settings for use with serial port (pySerial).

    :param fast_cli: Provide a way to optimize for performance. Converts select_delay_factor
            to select smallest of global and specific. Sets default global_delay_factor to .1
            (default: True)

    :param session_log: File path, SessionLog object, or BufferedIOBase subclass object
            to write the session log to.

    :param session_log_record_writes: The session log generally only records channel reads due
            to eliminate command duplication due to command echo. You can enable this if you
            want to record both channel reads and channel writes in the log (default: False).

    :param session_log_file_mode: "write" or "append" for session_log file mode
            (default: "write")

    :param allow_auto_change: Allow automatic configuration changes for terminal settings.
            (default: False)

    :param encoding: Encoding to be used when writing bytes to the output channel.
            (default: "utf-8")

    :param sock: An open socket or socket-like object (such as a <code>.Channel</code>) to use for
            communication to the target host (default: None).

    :param sock_telnet: A dictionary of telnet socket parameters (SOCKS proxy). See
            telnet_proxy.py code for details.

    :param global_cmd_verify: Control whether command echo verification is enabled or disabled
            (default: None). Global attribute takes precedence over function <code>cmd\_verify</code>
            argument. Value of <code>None</code> indicates to use function <code>cmd\_verify</code> argument.

    :param auto_connect: Control whether Netmiko automatically establishes the connection as
            part of the object creation (default: True).

    :param delay_factor_compat: Set send_command and send_command_timing back to using Netmiko
            3.x behavior for delay_factor/global_delay_factor/max_loops. This argument will be
            eliminated in Netmiko 5.x (default: False).

    :param disable_lf_normalization: Disable Netmiko's linefeed normalization behavior
            (default: False)
Expand source code
class CienaSaosTelnet(CienaSaosBase):
    def __init__(self, *args: Any, **kwargs: Any) -> None:
        default_enter = kwargs.get("default_enter")
        kwargs["default_enter"] = "\r\n" if default_enter is None else default_enter
        super().__init__(*args, **kwargs)

Ancestors

Inherited members