AETHER-918 Initial commit of strongSwan role
Change-Id: I090832bd211f9f053fecc7abda851bf9edc696b1
diff --git a/.cookiecutter_params.json b/.cookiecutter_params.json
new file mode 100644
index 0000000..c2d05af
--- /dev/null
+++ b/.cookiecutter_params.json
@@ -0,0 +1,24 @@
+{
+ "_template": "../cookiecutters/role",
+ "author": "Open Networking Foundation",
+ "company": "Open Networking Foundation",
+ "description": "strongSwan IPSec VPN",
+ "email": "support@opennetworking.org",
+ "issue_tracker_url": "https://jira.opennetworking.org/",
+ "license": "Apache-2.0",
+ "min_ansible_version": "2.9.5",
+ "molecule_privileged": "true",
+ "platform": "deleteme",
+ "platforms": {
+ "Ubuntu": [
+ "16.04",
+ "18.04"
+ ]
+ },
+ "role_defaults": {
+ "example_default1": "example_value1",
+ "example_default2": "example_value2"
+ },
+ "role_name": "strongswan",
+ "year": "2020"
+}
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..8b8bd3f
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,5 @@
+[gerrit]
+host=gerrit.opencord.org
+port=29418
+project=ansible/role/strongswan.git
+defaultremote=origin
diff --git a/.reuse/dep5 b/.reuse/dep5
new file mode 100644
index 0000000..36ce305
--- /dev/null
+++ b/.reuse/dep5
@@ -0,0 +1,5 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+
+Files: .cookiecutter_params.json VERSION .gitreview
+Copyright: 2020 Open Networking Foundation
+License: Apache-2.0
diff --git a/LICENSES/Apache-2.0.txt b/LICENSES/Apache-2.0.txt
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/LICENSES/Apache-2.0.txt
@@ -0,0 +1,202 @@
+
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diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..3990c2e
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,39 @@
+# strongswan Makefile
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+SHELL = bash -eu -o pipefail
+
+.DEFAULT_GOAL := help
+.PHONY: test lint yamllint ansiblelint license help
+
+test: ## run tests on the playbook with molecule
+ molecule --version
+ molecule test
+
+lint: yamllint ansiblelint ## run all lint checks
+
+# all YAML files
+YAML_FILES ?= $(shell find . -type f \( -name '*.yaml' -o -name '*.yml' \) -print )
+
+yamllint: ## lint check with yamllint
+ yamllint --version
+ yamllint \
+ -d "{extends: default, rules: {line-length: {max: 99}}}" \
+ -s $(YAML_FILES)
+
+ansiblelint: ## lint check with ansible-lint
+ ansible-lint --version
+ ansible-lint -v .
+ ansible-lint -v molecule/*/*
+
+license: ## Check license with the reuse tool
+ reuse --version
+ reuse --root . lint
+
+help: ## Print help for each target
+ @echo strongswan test targets
+ @echo
+ @grep '^[[:alnum:]_-]*:.* ##' $(MAKEFILE_LIST) \
+ | sort | awk 'BEGIN {FS=":.* ## "}; {printf "%-25s %s\n", $$1, $$2};'
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..8d29aac
--- /dev/null
+++ b/README.md
@@ -0,0 +1,61 @@
+<!--
+SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+SPDX-License-Identifier: Apache-2.0
+--!>
+# strongSwan
+
+strongSwan IPSec VPN
+
+
+## Requirements
+
+Requires BIRD to be installed if the VPNs are dynamic route based.
+
+Minimum ansible version: 2.9.5
+
+
+## Examples
+
+### Example: policy-based VPN
+```yaml
+strongswan_conf_install_routes: yes
+strongswan_conf_connections:
+ - name: tunnel1
+ psk: secret
+ left: 10.0.0.3
+ leftid: 128.105.144.189
+ left_subnets: 0.0.0.0/0
+ right: 34.124.6.243
+ right_subnets: 0.0.0.0/0
+```
+
+### Example: dynamic route-based VPN
+
+```yaml
+strongswan_conf_connections:
+ - name: tunnel1
+ vti:
+ local: 169.254.0.2/30
+ remote: 169.254.0.1/30
+ mark: "100"
+ psk: secret
+ left: 10.0.0.3
+ leftid: 128.105.144.189
+ left_subnets: 0.0.0.0/0
+ right: 34.124.6.243
+```
+
+### Example: playbook
+```yaml
+- hosts: all
+ vars:
+ roles:
+ - bird
+ - strongswan
+```
+
+## License and Author
+
+© 2020 Open Networking Foundation <support@opennetworking.org>
+
+License: Apache-2.0
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..c0ab82c
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+0.0.1-dev
diff --git a/defaults/main.yml b/defaults/main.yml
new file mode 100644
index 0000000..5261e7a
--- /dev/null
+++ b/defaults/main.yml
@@ -0,0 +1,40 @@
+---
+# strongswan defaults/main.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+# Default values set here work with Google Cloud VPN
+#
+# Upstream docs:
+# https://wiki.strongswan.org/projects/strongswan/wiki/ConfigurationFiles
+# https://wiki.strongswan.org/projects/strongswan/wiki/IpsecConf
+# https://wiki.strongswan.org/projects/strongswan/wiki/ConnSection
+
+# How long the keying channel of a connection (ISAKMP or IKE SA) should last
+strongswan_conf_phase1_lifetime: "600m"
+
+# How long a particular instance of a connection should last
+strongswan_conf_phase2_lifetime: "180m"
+
+# Which protocol should be used to initialize the connection
+# Acceptable values are ike, ikev1, or ikev2
+strongswan_conf_key_exchange: "ikev2"
+
+# IKE/ISAKMP SA encryption/authentication algorithms
+strongswan_conf_ike_cipher: "aes256gcm16-sha512-modp4096"
+
+# ESP encryption/authentication algorithms
+strongswan_conf_esp_cipher: "aes256gcm16-sha512-modp8192"
+
+# How the two security gateways should authenticate each other
+# NOTE: only psk is supported
+strongswan_conf_auth_type: "psk"
+
+# Handle routes in strongSwan or not
+# Set no if VPNs are route based
+strongswan_conf_install_routes: false
+
+# List of connections to configure
+# See README.md for the examples
+strongswan_conf_connections: []
diff --git a/files/ipsec-vti.sh b/files/ipsec-vti.sh
new file mode 100644
index 0000000..0d9022e
--- /dev/null
+++ b/files/ipsec-vti.sh
@@ -0,0 +1,103 @@
+#!/bin/bash
+#
+# strongswan files/ipsec-vti.sh - Ansible managed: Do NOT edit this file manually!
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+set -o nounset
+set -o errexit
+
+echo "${PLUTO_VERB}" >> /tmp/yoyo
+while [[ $# -gt 1 ]]; do
+ case ${1} in
+ -ln|--link-name)
+ TUNNEL_NAME="${2}"
+ TUNNEL_PHY_INTERFACE="${PLUTO_INTERFACE}"
+ shift
+ ;;
+ -ll|--link-local)
+ TUNNEL_LOCAL_ADDRESS="${2}"
+ TUNNEL_LOCAL_ENDPOINT="${PLUTO_ME}"
+ shift
+ ;;
+ -lr|--link-remote)
+ TUNNEL_REMOTE_ADDRESS="${2}"
+ TUNNEL_REMOTE_ENDPOINT="${PLUTO_PEER}"
+ shift
+ ;;
+ -m|--mark)
+ TUNNEL_MARK="${2}"
+ shift
+ ;;
+ -r|--static-route)
+ TUNNEL_STATIC_ROUTE="${2}"
+ shift
+ ;;
+ *)
+ echo "${0}: Unknown argument \"${1}\"" >&2
+ ;;
+ esac
+ shift
+done
+
+command_exists() {
+ type "$1" >&2 2>&2
+}
+
+create_interface() {
+ {
+ echo "ip link add ${TUNNEL_NAME} type vti local ${TUNNEL_LOCAL_ENDPOINT} remote ${TUNNEL_REMOTE_ENDPOINT} key ${TUNNEL_MARK}"
+ echo "ip addr add ${TUNNEL_LOCAL_ADDRESS} remote ${TUNNEL_REMOTE_ADDRESS} dev ${TUNNEL_NAME}"
+ echo "ip link set ${TUNNEL_NAME} up mtu 1387"
+ } >> /tmp/yoyo
+ ip link add "${TUNNEL_NAME}" type vti local "${TUNNEL_LOCAL_ENDPOINT}" remote "${TUNNEL_REMOTE_ENDPOINT}" key "${TUNNEL_MARK}"
+ ip addr add "${TUNNEL_LOCAL_ADDRESS}" remote "${TUNNEL_REMOTE_ADDRESS}" dev "${TUNNEL_NAME}"
+ ip link set "${TUNNEL_NAME}" up mtu 1387
+}
+
+configure_sysctl() {
+ sysctl -w net.ipv4.ip_forward=1
+ sysctl -w net.ipv4.conf."${TUNNEL_NAME}".rp_filter=2
+ sysctl -w net.ipv4.conf."${TUNNEL_NAME}".disable_policy=1
+ sysctl -w net.ipv4.conf."${TUNNEL_PHY_INTERFACE}".disable_xfrm=1
+ sysctl -w net.ipv4.conf."${TUNNEL_PHY_INTERFACE}".disable_policy=1
+}
+
+add_route() {
+ IFS=',' read -ra route <<< "${TUNNEL_STATIC_ROUTE}"
+ for i in "${route[@]}"; do
+ ip route add "${i}" dev "${TUNNEL_NAME}" metric "${TUNNEL_MARK}"
+ done
+}
+
+cleanup() {
+ IFS=',' read -ra route <<< "${TUNNEL_STATIC_ROUTE}"
+ for i in "${route[@]}"; do
+ ip route del "${i}" dev "${TUNNEL_NAME}" metric "${TUNNEL_MARK}"
+ done
+}
+
+delete_interface() {
+ ip link set "${TUNNEL_NAME}" down
+ ip link del "${TUNNEL_NAME}"
+}
+
+# main execution starts here
+
+command_exists ip || echo "ERROR: ip command is required to execute the script, check if you are running as root, mostly to do with path, /sbin/" >&2 2>&2
+command_exists iptables || echo "ERROR: iptables command is required to execute the script, check if you are running as root, mostly to do with path, /sbin/" >&2 2>&2
+command_exists sysctl || echo "ERROR: sysctl command is required to execute the script, check if you are running as root, mostly to do with path, /sbin/" >&2 2>&2
+
+case "${PLUTO_VERB}" in
+ up-client)
+ create_interface
+ configure_sysctl
+ add_route
+ echo "A"
+ ;;
+ down-client)
+ cleanup
+ delete_interface
+ ;;
+esac
diff --git a/files/vti.conf b/files/vti.conf
new file mode 100644
index 0000000..f623fc0
--- /dev/null
+++ b/files/vti.conf
@@ -0,0 +1,9 @@
+# strongswan files/vti.conf - Ansible managed: Do NOT edit this file manually!
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+charon {
+ # We will handle routes by ourselves
+ install_routes = no
+}
diff --git a/handlers/main.yml b/handlers/main.yml
new file mode 100644
index 0000000..52fd4c2
--- /dev/null
+++ b/handlers/main.yml
@@ -0,0 +1,13 @@
+---
+# strongswan handlers/main.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: start-strongswan
+ service:
+ name: "{{ strongswan_service }}"
+ state: started
+
+- name: restart-ipsec
+ command: ipsec restart
diff --git a/meta/main.yml b/meta/main.yml
new file mode 100644
index 0000000..477b1d1
--- /dev/null
+++ b/meta/main.yml
@@ -0,0 +1,27 @@
+---
+# strongswan meta/main.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+galaxy_info:
+ author: Open Networking Foundation
+ description: strongSwan IPSec VPN
+ company: Open Networking Foundation
+
+ issue_tracker_url: https://jira.opennetworking.org/
+
+ license: Apache-2.0
+
+ min_ansible_version: 2.9.5
+
+ platforms:
+ - name: Ubuntu
+ versions:
+ - "16.04"
+ - "18.04"
+
+ galaxy_tags:
+ - strongswan
+
+dependencies: []
diff --git a/molecule/default/converge.yml b/molecule/default/converge.yml
new file mode 100644
index 0000000..7d3e9b6
--- /dev/null
+++ b/molecule/default/converge.yml
@@ -0,0 +1,36 @@
+---
+# strongswan molecule/default/verify.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Converge
+ hosts: all
+ vars:
+ strongswan_conf_connections:
+ - name: tunnel1
+ psk: secret
+ vti:
+ local: 169.254.0.2/30
+ remote: 169.254.0.1/30
+ mark: "100"
+ left: 10.0.0.3
+ leftid: 128.105.144.189
+ left_subnets: 0.0.0.0/0
+ right: 34.124.6.243
+ right_subnets: 0.0.0.0/0
+ - name: tunnel2
+ psk: secret
+ vti:
+ local: 169.254.0.6/30
+ remote: 169.254.0.5/30
+ mark: "200"
+ left: 10.0.0.3
+ leftid: 128.105.144.189
+ left_subnets: 0.0.0.0/0
+ right: 34.104.68.245
+ right_subnets: 0.0.0.0/0
+ tasks:
+ - name: "Include strongswan"
+ include_role:
+ name: "strongswan"
diff --git a/molecule/default/molecule.yml b/molecule/default/molecule.yml
new file mode 100644
index 0000000..5cd3ff9
--- /dev/null
+++ b/molecule/default/molecule.yml
@@ -0,0 +1,20 @@
+---
+# strongswan molecule/default/molecule.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+dependency:
+ name: galaxy
+driver:
+ name: docker
+platforms:
+ - name: "ubuntu-18.04-priv"
+ image: "quay.io/paulfantom/molecule-systemd:ubuntu-18.04"
+ privileged: true
+ volumes:
+ - "/sys/fs/cgroup:/sys/fs/cgroup:ro"
+provisioner:
+ name: ansible
+verifier:
+ name: ansible
diff --git a/molecule/default/verify.yml b/molecule/default/verify.yml
new file mode 100644
index 0000000..37b0ca0
--- /dev/null
+++ b/molecule/default/verify.yml
@@ -0,0 +1,32 @@
+---
+# strongswan molecule/default/verify.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Verify
+ hosts: all
+ vars:
+ tasks:
+ - name: Gather package facts
+ package_facts:
+ manager: auto
+
+ - name: Verify package is installed
+ assert:
+ that: "'{{ item }}' in ansible_facts.packages"
+ with_items:
+ - strongswan
+
+ - name: Verify ipsec connections are configured
+ command: ipsec status
+ register: ipsec_status
+ changed_when: false
+ failed_when: item not in ipsec_status.stdout
+ with_items:
+ - tunnel1
+ - tunnel2
+
+ - name: Debug results
+ debug:
+ var: ipsec_status
diff --git a/tasks/Debian.yml b/tasks/Debian.yml
new file mode 100644
index 0000000..f9e890b
--- /dev/null
+++ b/tasks/Debian.yml
@@ -0,0 +1,19 @@
+---
+# strongswan tasks/Debian.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Install strongSwan package (Debian)
+ apt:
+ name: "{{ strongswan_package }}"
+ state: "present"
+ update_cache: true
+ cache_valid_time: 3600
+ notify:
+ - start-strongswan
+
+- name: Enable strongSwan Service
+ service:
+ name: "{{ strongswan_service }}"
+ enabled: true
diff --git a/tasks/main.yml b/tasks/main.yml
new file mode 100644
index 0000000..dff3f3a
--- /dev/null
+++ b/tasks/main.yml
@@ -0,0 +1,36 @@
+---
+# strongswan tasks/main.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Include OS-specific vars
+ include_vars: "{{ ansible_os_family }}.yml"
+
+- name: Include OS-specific tasks
+ include_tasks: "{{ ansible_os_family }}.yml"
+
+- name: Copy VTI configuration and script
+ copy:
+ src: "{{ item.src }}"
+ dest: "{{ item.dest }}"
+ owner: root
+ group: root
+ mode: "{{ item.mode }}"
+ with_items:
+ - {src: "vti.conf", dest: "/etc/strongswan.d/vti.conf", mode: 0644}
+ - {src: "ipsec-vti.sh", dest: "/etc/ipsec.d/ipsec-vti.sh", mode: a+x}
+ when: not strongswan_conf_install_routes
+
+- name: Create ipsec configurations from template
+ template:
+ src: "{{ item.src }}"
+ dest: "{{ item.dest }}"
+ owner: root
+ group: root
+ mode: 0640
+ with_items:
+ - {src: "ipsec.secrets.j2", dest: "/etc/ipsec.secrets"}
+ - {src: "ipsec.conf.j2", dest: "/etc/ipsec.conf"}
+ notify:
+ - restart-ipsec
diff --git a/templates/ipsec.conf.j2 b/templates/ipsec.conf.j2
new file mode 100644
index 0000000..2410e59
--- /dev/null
+++ b/templates/ipsec.conf.j2
@@ -0,0 +1,40 @@
+# strongswan templates/ipsec.conf - {{ ansible_managed }}
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+# basic configuration
+config setup
+ # strictcrlpolicy=yes
+ # uniqueids = no
+
+conn %default
+ ikelifetime={{ strongswan_conf_phase1_lifetime }}
+ keylife={{ strongswan_conf_phase2_lifetime }}
+ lifetime={{ strongswan_conf_phase2_lifetime }}
+ rekeymargin=3m
+ keyingtries=3
+ keyexchange={{ strongswan_conf_key_exchange }}
+ mobike=no
+ ike={{ strongswan_conf_ike_cipher }}
+ esp={{ strongswan_conf_esp_cipher }}
+ authby={{ strongswan_conf_auth_type }}
+
+{% for conn in strongswan_conf_connections %}
+conn {{ conn.name }}
+{% if conn.vti is defined %}
+ leftupdown="/etc/ipsec.d/ipsec-vti.sh -ln {{ conn.name }} -ll {{ conn.vti.local }} -lr {{ conn.vti.remote }} -m {{ conn.vti.mark }}"
+ mark={{ conn.vti.mark }}
+{% endif %}
+ left={{ conn.left }}
+ leftid={{ conn.leftid }}
+ leftsubnet={{ conn.left_subnets }}
+ leftauth={{ strongswan_conf_auth_type }}
+ right={{ conn.right }}
+ rightsubnet={{ conn.right_subnets }}
+ rightauth={{ strongswan_conf_auth_type }}
+ auto=start
+ type=tunnel
+ dpdaction=restart
+ closeaction=restart
+{% endfor %}
diff --git a/templates/ipsec.secrets.j2 b/templates/ipsec.secrets.j2
new file mode 100644
index 0000000..b7b99d6
--- /dev/null
+++ b/templates/ipsec.secrets.j2
@@ -0,0 +1,8 @@
+# strongswan templates/ipsec.secrets - {{ ansible_managed }}
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+{% for conn in strongswan_conf_connections %}
+{{ conn.right }} : PSK "{{ conn.psk }}"
+{% endfor %}
diff --git a/vars/Debian.yml b/vars/Debian.yml
new file mode 100644
index 0000000..90f8855
--- /dev/null
+++ b/vars/Debian.yml
@@ -0,0 +1,11 @@
+---
+# strongswan vars/Debian.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+#
+# NOTE: Only put platform/OS-specific variables in this file.
+# Put all other variables in the 'defaults/main.yml' file.
+
+strongswan_package: strongswan
+strongswan_service: strongswan