ACI Filter Entry: New Module

lib/ansible/modules/network/aci/aci_filter_entry.py

@@ -0,0 +1,237 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+ANSIBLE_METADATA = {'metadata_version': '1.0',
+                    'status': ['preview'],
+                    'supported_by': 'community'}
+
+DOCUMENTATION = r'''
+---
+module: aci_filter_entry
+short_description: Manage filter entries on Cisco ACI fabrics
+description:
+- Manage filter entries for a filter on Cisco ACI fabrics.
+author:
+- Swetha Chunduri (@schunduri)
+- Dag Wieers (@dagwieers)
+- Jacob McGill (@jmcgill298)
+version_added: '2.4'
+requirements:
+- Tested with ACI Fabric 1.0(3f)+
+notes:
+- The tenant used must exist before using this module in your playbook. The M(aci_tenant) module can be used for this.
+- The filter used must exist before using this module in your playbook. The M(aci_filter) module can be used for this.
+options:
+  arp_flag:
+    description:
+    - The arp flag to use when the ether_type is arp.
+    choices: [ arp_reply, arp_request, unspecified ]
+  description:
+    description:
+    - Description for the Filter Entry.
+    aliases: [ descr ]
+  dst_port:
+    description:
+    - Used to set both destination start and end ports to the same value when ip_protocol is tcp or udp.
+    choices: [ Valid TCP/UDP Port Ranges]
+  dst_port_end:
+    description:
+    - Used to set the destination end port when ip_protocol is tcp or udp.
+    choices: [ Valid TCP/UDP Port Ranges]
+  dst_port_start:
+    description:
+    - Used to set the destination start port when ip_protocol is tcp or udp.
+    choices: [ Valid TCP/UDP Port Ranges]
+  entry:
+    description:
+    - Then name of the Filter Entry.
+    aliases: [ entry_name, name ]
+  ether_type:
+    description:
+    - The Ethernet type.
+    choices: [ arp, fcoe, ip, mac_security, mpls_ucast, trill, unspecified ]
+  filter_name:
+    description:
+      The name of Filter that the entry should belong to.
+  icmp_msg_type:
+    description:
+    - ICMPv4 message type; used when ip_protocol is icmp.
+    choices: [ dst_unreachable, echo, echo_reply, src_quench, time_exceeded, unspecified ]
+  icmp6_msg_type:
+    description:
+    - ICMPv6 message type; used when ip_protocol is icmpv6.
+    choices: [ dst_unreachable, echo_request, echo_reply, neighbor_advertisement, neighbor_solicitation, redirect, time_exceeded, unspecified ]
+  ip_protocol:
+    description:
+    - The IP Protocol type when ether_type is ip.
+    choices: [ eigrp, egp, icmp, icmpv6, igmp, igp, l2tp, ospfigp, pim, tcp, udp, unspecified ]
+  state:
+    description:
+    - present, absent, query
+    default: present
+    choices: [ absent, present, query ]
+  stateful:
+    description:
+    - Determines the statefulness of the filter entry.
+  tenant:
+    description:
+    - The name of the tenant.
+    aliases: [ tenant_name ]
+extends_documentation_fragment: aci
+'''
+
+EXAMPLES = r'''
+- aci_filter_entry:
+    action: "{{ action }}"
+    entry: "{{ entry }}"
+    tenant: "{{ tenant }}"
+    ether_name: "{{  ether_name }}"
+    icmp_msg_type: "{{ icmp_msg_type }}"
+    filter_name: "{{ filter_name }}"
+    descr: "{{ descr }}"
+    host: "{{ inventory_hostname }}"
+    username: "{{ user }}"
+    password: "{{ pass }}"
+    protocol: "{{ protocol }}"
+'''
+
+RETURN = ''' # '''
+
+from ansible.module_utils.aci import ACIModule, aci_argument_spec
+from ansible.module_utils.basic import AnsibleModule
+
+VALID_ARP_FLAGS = ['arp_reply', 'arp_request', 'unspecified']
+VALID_ETHER_TYPES = ['arp', 'fcoe', 'ip', 'mac_security', 'mpls_ucast', 'trill', 'unspecified']
+VALID_ICMP_TYPES = ['dst_unreachable', 'echo', 'echo_reply', 'src_quench', 'time_exceeded',
+                    'unspecified', 'echo-rep', 'dst-unreach']
+VALID_ICMP6_TYPES = ['dst_unreachable', 'echo_request', 'echo_reply', 'neighbor_advertisement',
+                     'neighbor_solicitation', 'redirect', 'time_exceeded', 'unspecified']
+VALID_IP_PROTOCOLS = ['eigrp', 'egp', 'icmp', 'icmpv6', 'igmp', 'igp', 'l2tp', 'ospfigp', 'pim', 'tcp', 'udp', 'unspecified']
+
+# mapping dicts are used to normalize the proposed data to what the APIC expects, which will keep diffs accurate
+ARP_FLAG_MAPPING = dict(arp_reply='reply', arp_request='req', unspecified=None)
+FILTER_PORT_MAPPING = {'443': 'https', '25': 'smtp', '80': 'http', '20': 'ftpData', '53': 'dns', '110': 'pop3', '554': 'rtsp'}
+ICMP_MAPPING = {'dst_unreachable': 'dst-unreach', 'echo': 'echo', 'echo_reply': 'echo-rep', 'src_quench': 'src-quench',
+                'time_exceeded': 'time-exceeded', 'unspecified': 'unspecified', 'echo-re': 'echo-rep', 'dst-unreach': 'dst-unreach'}
+ICMP6_MAPPING = dict(dst_unreachable='dst-unreach', echo_request='echo-req', echo_reply='echo-rep', neighbor_advertisement='nbr-advert',
+                     neighbor_solicitation='nbr-solicit', redirect='redirect', time_exceeded='time-exceeded', unspecified='unspecified')
+
+
+def main():
+    argument_spec = aci_argument_spec
+    argument_spec.update(
+        arp_flag=dict(type='str', choices=VALID_ARP_FLAGS),
+        description=dict(type='str'),
+        dst_port=dict(type='str'),
+        dst_port_end=dict(type='str'),
+        dst_port_start=dict(type='str'),
+        entry=dict(type='str', aliases=['entry_name', 'name']),
+        ether_type=dict(choices=VALID_ETHER_TYPES, type='str'),
+        filter_name=dict(type='str'),
+        icmp_msg_type=dict(type='str', choices=VALID_ICMP_TYPES),
+        icmp6_msg_type=dict(type='str', choices=VALID_ICMP6_TYPES),
+        ip_protocol=dict(choices=VALID_IP_PROTOCOLS, type='str'),
+        state=dict(type='str', default='present', choices=['absent', 'present', 'query']),
+        stateful=dict(type='str', choices=['no', 'yes']),
+        tenant=dict(type="str", aliases=['tenant_name'])
+    )
+
+    module = AnsibleModule(
+        argument_spec=argument_spec,
+        supports_check_mode=True,
+    )
+
+    arp_flag = module.params['arp_flag']
+    if arp_flag is not None:
+        arp_flag = ARP_FLAG_MAPPING[arp_flag]
+    description = module.params['description']
+    dst_port = module.params['dst_port']
+    if dst_port in FILTER_PORT_MAPPING.keys():
+        dst_port = FILTER_PORT_MAPPING[dst_port]
+    dst_end = module.params['dst_port_end']
+    if dst_end in FILTER_PORT_MAPPING.keys():
+        dst_end = FILTER_PORT_MAPPING[dst_end]
+    dst_start = module.params['dst_port_start']
+    if dst_start in FILTER_PORT_MAPPING.keys():
+        dst_start = FILTER_PORT_MAPPING[dst_start]
+    entry = module.params['entry']
+    ether_type = module.params['ether_type']
+    filter_name = module.params['filter_name']
+    icmp_msg_type = module.params['icmp_msg_type']
+    if icmp_msg_type is not None:
+        icmp_msg_type = ICMP_MAPPING[icmp_msg_type]
+    icmp6_msg_type = module.params['icmp6_msg_type']
+    if icmp6_msg_type is not None:
+        icmp6_msg_type = ICMP6_MAPPING[icmp6_msg_type]
+    ip_protocol = module.params['ip_protocol']
+    state = module.params['state']
+    stateful = module.params['stateful']
+    tenant = module.params['tenant']
+
+    aci = ACIModule(module)
+
+    # validate that dst_port is not passed with dst_start or dst_end
+    if dst_port is not None and (dst_end is not None or dst_start is not None):
+        module.fail_json(msg="Parameter 'dst_port' cannot be used with 'dst_end' and 'dst_start'")
+    elif dst_port is not None:
+        dst_end = dst_port
+        dst_start = dst_port
+
+    # validate that filter_name is not passed without tenant
+    if filter_name is not None and tenant is None:
+        module.fail_json(msg="Parameter 'filter_name' cannot be used without 'tenant'")
+
+    # TODO: Think through the logic here and see if there is a better way
+    if entry is not None:
+        # fail when entry is provided without tenant and filter_name
+        if tenant is not None and filter_name is not None:
+            path = 'api/mo/uni/tn-%(tenant)s/flt-%(filter_name)s/e-%(entry)s.json' % module.params
+        elif tenant is not None and state == 'query':
+            path = 'api/mo/uni/tn-%(tenant)s.json?rsp-subtree=full&rsp-subtree-class=vzEntry&rsp-subtree-filter=eq(vzEntry.name, \
+                   \"%(entry)s\")&rsp-subtree-include=no-scoped' % module.params
+        else:
+            path = 'api/class/vzEntry.json?query-target-filter=eq(vzEntry.name, \"%(entry)s\")' % module.params
+    elif state == 'query':
+        if tenant is None:
+            path = 'api/class/vzEntry.json'
+        else:
+            path = 'api/mo/uni/tn-%(tenant)s.json?rsp-subtree=full&rsp-subtree-class=vzEntry&rsp-subtree-include=no-scoped' % module.params
+    else:
+        module.fail_json(msg="Parameters 'tenant', 'filter_name', and 'entry' are required for state 'absent' or 'present'")
+
+    aci.result['url'] = '%(protocol)s://%(hostname)s/' % aci.params + path
+
+    aci.get_existing()
+
+    if state == 'present':
+        # Filter out module params with null values
+        aci.payload(aci_class='vzEntry', class_config=dict(arpOpc=arp_flag,
+                                                           descr=description,
+                                                           dFromPort=dst_start,
+                                                           dToPort=dst_end,
+                                                           etherT=ether_type,
+                                                           icmpv4T=icmp_msg_type,
+                                                           icmpv6T=icmp6_msg_type,
+                                                           name=entry,
+                                                           prot=ip_protocol,
+                                                           stateful=stateful))
+
+        # generate config diff which will be used as POST request body
+        aci.get_diff(aci_class='vzEntry')
+
+        # submit changes if module not in check_mode and the proposed is different than existing
+        aci.post_config()
+
+    elif state == 'absent':
+        aci.delete_config()
+
+    module.exit_json(**aci.result)
+
+
+if __name__ == "__main__":
+    main()