cloudstack/systemvm
Rajani Karuturi 13bfdd71e6 Merge pull request #1741 from swill/strongswanvpn
Updated StrongSwan VPN ImplementationThis PR is a merge of @jayapalu changes in #872 and the changes I had to make to get the functionality working.

I have done pretty extensive testing of this code so far and we are looking to be in pretty good shape.  One thing to note is that a `Diffie-Hellman` group **is required** in order for this feature to work correctly.  It is not highlighted in the tests below, but I have shown that the `PFS` is not required for this feature to work.  In #872 I have shown a more exhaustive set of tests of this code, but I have limited this set of tests to a recommended `IKE` and `ESP` configuration in order to reduce the noise and test the other areas of functionality.

**Test Results**
I am testing this functionality by creating two VPCs with VMs in each and creating a S2S VPN connection between the two VPCs. Then I SSH into a VM in one VPC and I ping the private IP of a VM in the other VPC. Then I tear it down and try a different configuration.

_Setup_

```
VPC 1                          VPC 2
=====                          =====
VPN Gateway                    VPN Gateway
VPN Customer Gateway           VPN Customer Gateway
VPN Connection        <--->    VPN Connection
 - Passive = True               - Passive = False
```

_Legend_
`SKIP` => At least one of the VPN Connections did not come up, so no test was run.
`OK` => The ping test was successful over the S2S VPN connection.
`FAIL` => The ping test failed over the S2S VPN connection.

`Passive` => Specifies if either the `<vpc_1> : <vpc_2>` sides of the VPN Connection is set to passive.
`Conn State` => Specifies the connection status of the `<vpc_1> : <vpc_2>` VPN Connection in the UI.
`Requires Reset` => If the ping test does not result in an `OK`, then a VPN Connection Reset is performed on either `<vpc_1> : <vpc_2>` sides of the VPN Connection based on which side is not showing `Connected`.  The results in the `Status` column is the final result after the reset is performed.

_Results_

```
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| Status | IKE & ESP            | DPD   | Encap | IKE Life | ESP Life | Passive       | Conn State                  | Requires Reset |
+========+======================+=======+=======+==========+==========+===============+=============================+================+
| OK     | aes128-sha1;modp1536 | True  | False | 86400    | 3600     | True : False  | Disconnected : Connected    | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| OK     | aes128-sha1;modp1536 | True  | True  | 86400    | 3600     | True : False  | Disconnected : Connected    | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| OK     | aes128-sha1;modp1536 | True  | False |          | 3600     | True : False  | Disconnected : Connected    | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| OK     | aes128-sha1;modp1536 | True  | False | 86400    |          | True : False  | Disconnected : Connected    | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| OK     | aes128-sha1;modp1536 | True  | False |          |          | True : False  | Disconnected : Connected    | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| OK     | aes128-sha1;modp1536 | True  | False | 86400    | 3600     | False : False | Connected : Connected       | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| OK     | aes128-sha1;modp1536 | True  | False | 86400    | 3600     | True : True   | Disconnected : Disconnected | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| OK     | aes128-sha1;modp1536 | True  | False | 86400    | 3600     | False : True  | Connected : Disconnected    | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| OK     | aes128-sha1;modp1536 | False | False | 86400    | 3600     | False : False | Connected : Connected       | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| OK     | aes128-sha1;modp1536 | False | False | 86400    | 3600     | True : False  | Disconnected : Connected    | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| OK     | aes128-sha1;modp1536 | False | False | 86400    | 3600     | True : True   | Disconnected : Disconnected | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| OK     | aes128-sha1;modp1536 | False | False | 86400    | 3600     | False : True  | Connected : Disconnected    | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| SKIP   | aes128-sha1          | True  | False | 86400    | 3600     | True : False  | Disconnected : Error        | True : False   |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| SKIP   | aes128-sha1          | False | False | 86400    | 3600     | True : False  | Disconnected : Error        | True : False   |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| FAIL   | aes128-sha1          | True  | False | 86400    | 3600     | True : True   | Disconnected : Disconnected | True : True    |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
| SKIP   | aes128-sha1          | True  | False | 86400    | 3600     | False : False | Connected : Error           | False : False  |
+--------+----------------------+-------+-------+----------+----------+---------------+-----------------------------+----------------+
```

* pr/1741:
  complete implementation of the StrongSwan VPN feature

Signed-off-by: Rajani Karuturi <rajani.karuturi@accelerite.com>
2017-02-14 17:59:17 +05:30
..
bindir Move the system vm to a separate maven project. 2013-09-20 18:31:02 +08:00
certs Move the system vm to a separate maven project. 2013-09-20 18:31:02 +08:00
conf CLOUDSTACK-9062: Improve S3 implementation. 2015-11-19 15:29:10 +01:00
conf.dom0 CLOUDSTACK-9105: Logging enhancement: Handle/reference to track API calls end to end in the MS logs 2015-12-04 12:45:57 +05:30
css console-proxy add support of AltGr key and FR azerty keyboard 2014-12-08 18:05:43 +05:30
distro CLOUDSTACK-6220: Take 2, Fix cloudstack init scripts so that they 2014-03-10 16:11:52 -06:00
images Move the system vm to a separate maven project. 2013-09-20 18:31:02 +08:00
js CLOUDSTACK-9164: Prevent firefox's quick search from opening in VM console 2016-04-25 11:37:43 +05:30
libexec Move the system vm to a separate maven project. 2013-09-20 18:31:02 +08:00
patches/debian Merge pull request #1741 from swill/strongswanvpn 2017-02-14 17:59:17 +05:30
scripts Add Java Default Certificat Authorities into the keystore if using a custom cert SSL 2016-05-25 06:34:15 +01:00
test/python Fixed defaultroute on VPC routers in CsRoute and CsAddress 2015-08-24 13:35:29 +02:00
ui Move the system vm to a separate maven project. 2013-09-20 18:31:02 +08:00
vm-script Move the system vm to a separate maven project. 2013-09-20 18:31:02 +08:00
pom.xml Updating pom.xml version numbers for release 4.9.3.0-SNAPSHOT 2017-01-06 10:40:15 +05:30
systemvm-descriptor.xml Remove duplicate scripts and move the remaining items to the systemvm project 2013-10-14 08:02:35 +02:00