Added support for Arris CER and Casa CMTS platforms. (#2958)

* Added support for Arris CER and Casa CMTS platforms.

* Corrected issue with reliably exiting config mode on Casa.

Co-authored-by: Chuck van Gessel <douglas.vangessel@sparklight.biz>

PLATFORMS.md

@@ -65,8 +65,10 @@
 - Accedian
 - Allied Telesis AlliedWare Plus
 - Aruba
+- Arris CER
 - Brocade Fabric OS
 - C-DOT CROS
+- Casa CMTS
 - Ciena SAOS
 - Citrix Netscaler
 - Cisco Telepresence
@@ -108,6 +110,7 @@
 - allied_telesis_awplus
 - apresia_aeos
 - arista_eos
+- arris_cer
 - aruba_os
 - aruba_osswitch
 - aruba_procurve
@@ -121,6 +124,7 @@
 - brocade_vdx
 - brocade_vyos
 - calix_b6
+- casa_cmts
 - cdot_cros
 - centec_os
 - checkpoint_gaia

netmiko/arris/__init__.py

@@ -0,0 +1,3 @@
+from netmiko.arris.arris_cer import ArrisCERBase, ArrisCERSSH
+
+__all__ = ["ArrisCERBase", "ArrisCERSSH"]

netmiko/arris/arris_cer.py

@@ -0,0 +1,39 @@
+from netmiko.cisco_base_connection import CiscoSSHConnection
+
+
+class ArrisCERBase(CiscoSSHConnection):
+    """
+    Arris CER Support.
+
+    Implements methods for interacting with Arris CER platforms.
+    """
+
+    def config_mode(
+        self,
+        config_command: str = "configure",
+        pattern: str = "",
+        re_flags: int = 0,
+    ) -> str:
+        """Enters configuration mode."""
+        return super().config_mode(
+            config_command=config_command,
+            pattern=pattern,
+            re_flags=re_flags,
+        )
+
+    def save_config(
+        self,
+        cmd: str = "write memory",
+        confirm: bool = False,
+        confirm_response: str = "",
+    ) -> str:
+        """Saves the running configuration to NVRAM."""
+        return super().save_config(
+            cmd=cmd, confirm=confirm, confirm_response=confirm_response
+        )
+
+
+class ArrisCERSSH(ArrisCERBase):
+    """Arris CER SSH Driver."""
+
+    pass

netmiko/casa/__init__.py

@@ -0,0 +1,3 @@
+from netmiko.casa.casa_cmts import CasaCMTSBase, CasaCMTSSSH
+
+__all__ = ["CasaCMTSBase", "CasaCMTSSSH"]

netmiko/casa/casa_cmts.py

@@ -0,0 +1,67 @@
+from typing import Optional
+from netmiko.cisco_base_connection import CiscoSSHConnection
+from netmiko.no_enable import NoEnable
+
+
+class CasaCMTSBase(NoEnable, CiscoSSHConnection):
+    """
+    Casa CMTS support.
+
+    Implements methods for interacting with Casa CMTS platforms.
+    """
+
+    def disable_paging(
+        self,
+        command: str = "page-off",
+        delay_factor: Optional[float] = None,
+        cmd_verify: bool = True,
+        pattern: Optional[str] = None,
+    ) -> str:
+        """Disables paging."""
+        return super().disable_paging(
+            command=command,
+            delay_factor=delay_factor,
+            cmd_verify=cmd_verify,
+            pattern=pattern,
+        )
+
+    def config_mode(
+        self,
+        config_command: str = "config",
+        pattern: str = "",
+        re_flags: int = 0,
+    ) -> str:
+        """Enters configuration mode."""
+        return super().config_mode(
+            config_command=config_command,
+            pattern=pattern,
+            re_flags=re_flags,
+        )
+
+    def exit_config_mode(
+        self, exit_config: str = chr(26), pattern: str = r"#.*"
+    ) -> str:
+        """
+        Exits configuration mode.
+
+        Must use CTRL-Z (ASCII 26) to reliably exit from any
+        tier in the configuration hierarchy.
+
+        Since CTRL-Z is a non-printable character, we must temporarily disable
+        global_cmd_verify to prevent an exception trying to read the
+        echoed input.
+        """
+        if self.global_cmd_verify is not False and exit_config == chr(26):
+            global_cmd_verify_tmp = self.global_cmd_verify
+            self.global_cmd_verify = False
+            output = super().exit_config_mode(exit_config, pattern)
+            self.global_cmd_verify = global_cmd_verify_tmp
+        else:
+            output = super().exit_config_mode(exit_config, pattern)
+        return output
+
+
+class CasaCMTSSSH(CasaCMTSBase):
+    """Casa CMTS SSH Driver."""
+
+    pass

netmiko/ssh_autodetect.py

@@ -76,6 +76,18 @@
         "priority": 99,
         "dispatch": "_autodetect_std",
     },
+    "arris_cer": {
+        "cmd": "show version",
+        "search_patterns": [r"CER"],
+        "priority": 99,
+        "dispatch": "_autodetect_std",
+    },
+    "casa_cmts": {
+        "cmd": "show version",
+        "search_patterns": [r"Casa"],
+        "priority": 99,
+        "dispatch": "_autodetect_std",
+    },
     "ciena_saos": {
         "cmd": "software show",
         "search_patterns": [r"saos"],

netmiko/ssh_dispatcher.py

@@ -10,6 +10,7 @@
 from netmiko.allied_telesis import AlliedTelesisAwplusSSH
 from netmiko.arista import AristaSSH, AristaTelnet
 from netmiko.arista import AristaFileTransfer
+from netmiko.arris import ArrisCERSSH
 from netmiko.apresia import ApresiaAeosSSH, ApresiaAeosTelnet
 from netmiko.aruba import ArubaSSH
 from netmiko.audiocode import (
@@ -23,6 +24,7 @@
 from netmiko.brocade import BrocadeFOSSSH
 from netmiko.broadcom import BroadcomIcosSSH
 from netmiko.calix import CalixB6SSH, CalixB6Telnet
+from netmiko.casa import CasaCMTSSSH
 from netmiko.cdot import CdotCrosSSH
 from netmiko.centec import CentecOSSSH, CentecOSTelnet
 from netmiko.checkpoint import CheckPointGaiaSSH
@@ -140,6 +142,7 @@
     "allied_telesis_awplus": AlliedTelesisAwplusSSH,
     "apresia_aeos": ApresiaAeosSSH,
     "arista_eos": AristaSSH,
+    "arris_cer": ArrisCERSSH,
     "aruba_os": ArubaSSH,
     "aruba_osswitch": HPProcurveSSH,
     "aruba_procurve": HPProcurveSSH,
@@ -157,6 +160,7 @@
     "brocade_vyos": VyOSSSH,
     "checkpoint_gaia": CheckPointGaiaSSH,
     "calix_b6": CalixB6SSH,
+    "casa_cmts": CasaCMTSSSH,
     "cdot_cros": CdotCrosSSH,
     "centec_os": CentecOSSSH,
     "ciena_saos": CienaSaosSSH,