Cisco ASA "show vpn-sessiondb anyconnect" parser doesn't support IPv6 addresses

[smfeldman]

ISSUE TYPE

• Bug Report

TEMPLATE USING

(This is templates/cisco_asa_show_vpn-sessiondb_anyconnect.textfsm.)

Value Filldown,Required SESSION_TYPE (\S+)
Value USERNAME (\S+)
Value Required INDEX (\d+)
Value ASSIGNED_IP (\d+\.\d+\.\d+\.\d+)
Value PUBLIC_IP (\d+\.\d+\.\d+\.\d+)
Value PROTOCOL (.+?)
Value LICENSE (.+?)
Value ENCRYPTION (.+?)
Value HASHING (.+?)
Value BYTES_TX (\d+)
Value BYTES_RX (\d+)
Value GROUP_POLICY (\S+)
Value TUNNEL_GROUP (\S+)
Value LOGIN_TIME (\d+:\d+:\d+)
Value LOGIN_TIME_ZONE (\w+)
Value LOGIN_WEEKDAY (\w+)
Value LOGIN_MONTH (\w+)
Value LOGIN_DAY (\d+)
Value LOGIN_YEAR (\d+)
Value DURATION (.+?)
Value INACTIVITY (.+?)
Value VLAN_MAPPING (\S+)
Value VLAN (.+?)
Value AUDT_SESS_ID (.+?)
Value SECURITY_GRP (\S+)

Start
  ^Session\s+Type:\s+${SESSION_TYPE}$$ -> Connection

Connection
  ^\s*Username\s*:\s+${USERNAME}\s+Index\s+:\s*${INDEX}$$
  ^\s*Username\s*:\s+${USERNAME}$$
  ^\s*Index\s*:\s+${INDEX}$$
  ^\s*Assigned\s+IP\s*:\s+${ASSIGNED_IP}\s+Public\s*IP\s*:\s*${PUBLIC_IP}$$
  ^\s*Assigned\s+IP\s*:\s+${ASSIGNED_IP}$$
  ^\s*Public\s+IP\s*:\s+${PUBLIC_IP}$$
  ^\s*Protocol\s+:\s+${PROTOCOL}$$
  ^\s*License\s+:\s*${LICENSE}$$
  ^\s*Encryption\s+:\s*${ENCRYPTION}$$
  ^\s*Hashing\s+:\s*${HASHING}$$
  ^\s*Bytes\s+Tx\s+:\s+${BYTES_TX}\s+Bytes\s+Rx\s+:\s+${BYTES_RX}$$
  ^\s*Group\s+Policy\s+:\s+${GROUP_POLICY}\s+Tunnel\s+Group\s+:\s+${TUNNEL_GROUP}$$
  ^\s*Group\s+Policy\s+:\s+${GROUP_POLICY}$$
  ^\s*Tunnel\s+Group\s+:\s+${TUNNEL_GROUP}$$
  ^\s*Login\s+Time\s+:\s+${LOGIN_TIME}\s+${LOGIN_TIME_ZONE}\s+${LOGIN_WEEKDAY}\s+${LOGIN_MONTH}\s+${LOGIN_DAY}\s+${LOGIN_YEAR}$$
  ^\s*Duration\s+:\s+${DURATION}$$
  ^\s*Inactivity\s+:\s+${INACTIVITY}$$
  ^\s*VLAN\s+Mapping\s+:\s+${VLAN_MAPPING}\s+VLAN\s+:\s+${VLAN}$$
  ^\s*Audt\s+Sess\s+ID\s+:\s+${AUDT_SESS_ID}$$
  ^\s*Security\s+Grp\s+:\s+${SECURITY_GRP}\s*$$ -> Record
  ^\s*$$
  ^. -> Error

SAMPLE COMMAND OUTPUT

Session Type: AnyConnect
Username     : johndoe12              Index        : 38847
Assigned IP  : 10.10.123.123          Public IP    : 2001:db8:91::7
Assigned IPv6: 2001:DB8:1234:1::5678
Protocol     : AnyConnect-Parent SSL-Tunnel DTLS-Tunnel
License      : AnyConnect Premium
Encryption   : AnyConnect-Parent: (1)none  SSL-Tunnel: (1)AES-GCM-256  DTLS-Tunnel: (1)AES-GCM-256
Hashing      : AnyConnect-Parent: (1)none  SSL-Tunnel: (1)SHA384  DTLS-Tunnel: (1)SHA384
Bytes Tx     : 3145031268             Bytes Rx     : 58022385
Group Policy : RAVPN                  Tunnel Group : RAVPN
Login Time   : 01:13:32 UTC Fri Jun 5 2020
Duration     : 4h:55m:35s
Inactivity   : 0h:00m:00s
VLAN Mapping : N/A                    VLAN         : none
Audt Sess ID : 0a0edc05097bf0005ed99c3c
Security Grp : none

SUMMARY

STEPS TO REPRODUCE

Python 3.7.4 (default, Sep  7 2019, 18:29:04)
[Clang 10.0.0 (clang-1000.11.45.5)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from ntc_templates.parse import parse_output
>>> from pprint import pprint
>>> with open("/tmp/cisco_asa_show_vpn-sessiondb_anyconnect_ipv6.raw", "r") as f:
...     data = f.read()
...
>>> pprint(parse_output(platform="cisco_asa", command="show vpn-sessiondb anyconnect", data=data))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/feldman/NetEng/asa-ip/ntc-templates/lib/ntc_templates/parse.py", line 35, in parse_output
    cli_table.ParseCmd(data, attrs)
  File "/Users/feldman/NetEng/asa-ip/venv/lib/python3.7/site-packages/textfsm/clitable.py", line 282, in ParseCmd
    self.table = self._ParseCmdItem(self.raw, template_file=template_files[0])
  File "/Users/feldman/NetEng/asa-ip/venv/lib/python3.7/site-packages/textfsm/clitable.py", line 315, in _ParseCmdItem
    for record in fsm.ParseText(cmd_input):
  File "/Users/feldman/NetEng/asa-ip/venv/lib/python3.7/site-packages/textfsm/parser.py", line 895, in ParseText
    self._CheckLine(line)
  File "/Users/feldman/NetEng/asa-ip/venv/lib/python3.7/site-packages/textfsm/parser.py", line 944, in _CheckLine
    if self._Operations(rule, line):
  File "/Users/feldman/NetEng/asa-ip/venv/lib/python3.7/site-packages/textfsm/parser.py", line 1025, in _Operations
    % (rule.line_num, line))
textfsm.parser.TextFSMError: State Error raised. Rule Line: 52. Input Line: Assigned IP  : 10.10.123.123          Public IP    : 2001:db8:91::7
>>>

EXPECTED RESULTS

It should have correctly parsed the IPv6 addresses.

ACTUAL RESULTS

See the error message above.

[smfeldman]

pull request #752

[smfeldman]

PR was merged.