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#!/usr/bin/python
# -*- coding: utf-8 -*-
# GNU General Public License v3.0+
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = r"""
---
module: vyos_firewall_interfaces
short_description: Firewall interfaces resource module via REST API.
description:
- Attaches or detaches named firewall rule sets to/from interface
directions (in/out/local) using the VyOS HTTPS REST API.
version_added: "1.0.0"
author:
- VyOS Community (@vyos)
options:
config:
description: List of interface firewall attachment configurations.
type: list
elements: dict
suboptions:
name:
description: Interface name.
type: str
required: true
access_rules:
description: Firewall rule sets per AFI.
type: list
elements: dict
suboptions:
afi:
description: Address family.
type: str
choices: [ipv4, ipv6]
required: true
rules:
description: Rule sets and directions.
type: list
elements: dict
suboptions:
name:
description: Rule set name.
type: str
direction:
description: Traffic direction.
type: str
choices: [in, local, out]
required: true
state:
description: Desired state.
type: str
choices: [merged, replaced, overridden, deleted, gathered]
default: merged
hostname:
type: str
required: true
port:
type: int
default: 443
api_key:
type: str
required: true
no_log: true
timeout:
type: int
default: 30
verify_ssl:
type: bool
default: false
"""
RETURN = r"""
before:
returned: always
type: list
after:
returned: when changed
type: list
commands:
returned: always
type: list
"""
from ansible.module_utils.basic import AnsibleModule
from ansible_collections.vyos.rest.plugins.module_utils.vyos_rest import (
VYOS_REST_CONNECTION_ARGSPEC,
VyOSRestClient,
VyOSRestError,
)
_IFACE_TYPES = {
"eth": "ethernet",
"bond": "bonding",
"vti": "vti",
"vxlan": "vxlan",
"lo": "loopback",
"dummy": "dummy",
"br": "bridge",
"wg": "wireguard",
"tun": "tunnel",
}
def _itype(name):
for p, t in _IFACE_TYPES.items():
if name.startswith(p):
return t
return "ethernet"
def _fw_direction_key(afi, direction):
if afi == "ipv4":
return {"in": "in", "out": "out", "local": "local"}[direction]
return {"in": "in", "out": "out", "local": "local"}[direction]
def _apply(client, iface_cfg, commands):
name = iface_cfg["name"]
itype = _itype(name)
ibase = ["interfaces", itype, name, "firewall"]
for ar in iface_cfg.get("access_rules") or []:
afi = ar["afi"]
fw_key = "firewall" if afi == "ipv4" else "ipv6"
for rule in ar.get("rules") or []:
direction = rule["direction"]
rs_name = rule.get("name")
if rs_name:
path = ibase + [direction, fw_key if afi == "ipv6" else "name"]
client.configure_set(path, rs_name)
commands.append(
"set interfaces {t} {n} firewall {d} {k} '{rs}'".format(
t=itype,
n=name,
d=direction,
k="ipv6-name" if afi == "ipv6" else "name",
rs=rs_name,
),
)
def _delete_iface_fw(client, name, commands):
itype = _itype(name)
path = ["interfaces", itype, name, "firewall"]
try:
client.configure_delete(path)
commands.append("delete interfaces {t} {n} firewall".format(t=itype, n=name))
except VyOSRestError:
pass
def _get(client):
try:
result = client.retrieve_show_config(["interfaces"])
raw = result.get("data") or {}
out = []
for itype, itype_data in raw.items():
if not isinstance(itype_data, dict):
continue
for iname, idata in itype_data.items():
fw = idata.get("firewall") if isinstance(idata, dict) else None
if fw:
out.append({"name": iname, "firewall": fw})
return out
except VyOSRestError:
return []
def main():
argument_spec = dict(
config=dict(
type="list",
elements="dict",
options=dict(
name=dict(type="str", required=True),
access_rules=dict(
type="list",
elements="dict",
options=dict(
afi=dict(type="str", required=True, choices=["ipv4", "ipv6"]),
rules=dict(
type="list",
elements="dict",
options=dict(
name=dict(type="str"),
direction=dict(
type="str",
required=True,
choices=["in", "local", "out"],
),
),
),
),
),
),
),
state=dict(
type="str",
default="merged",
choices=["merged", "replaced", "overridden", "deleted", "gathered"],
),
)
argument_spec.update(VYOS_REST_CONNECTION_ARGSPEC)
module = AnsibleModule(argument_spec=argument_spec, supports_check_mode=True)
client = VyOSRestClient(module)
state = module.params["state"]
config = module.params.get("config") or []
commands = []
changed = False
before = _get(client)
if state == "gathered":
module.exit_json(changed=False, gathered=before, before=before, commands=[])
if module.check_mode:
module.exit_json(changed=True, before=before, commands=["(check mode)"])
try:
if state == "deleted":
targets = {i["name"] for i in config} if config else {i["name"] for i in before}
for iface in before:
if iface["name"] in targets:
_delete_iface_fw(client, iface["name"], commands)
changed = True
elif state in ("merged", "replaced", "overridden"):
if state in ("replaced", "overridden"):
for cfg in config:
_delete_iface_fw(client, cfg["name"], commands)
for cfg in config:
_apply(client, cfg, commands)
changed = True
except VyOSRestError as exc:
module.fail_json(msg=str(exc))
after = _get(client) if changed else before
module.exit_json(changed=changed, before=before, after=after, commands=commands)
if __name__ == "__main__":
main()
|
