strongSwan

h1. Version 5.7.2

* For RSA with PSS padding, the TPM 2.0 specification mandates the maximum salt length

  (as defined by the length of the key and hash).  However, if the TPM is FIPS-168-4 compliant,

  the salt length equals the hash length.  This is assumed for FIPS-140-2 compliant TPMs, but

  if that's not the case, it might be necessary to manually enable _charon.plugins.tpm.fips_186_4_

  if the TPM doesn't use the maximum salt length.

* Directories for credentials loaded by [[swanctl]] are now accessed relative to the loaded

  [[swanctl.conf]] file, in particular, when loading it from a custom location via @--file@ argument.

  The base directory, which is used if no custom location for [[swanctl.conf]] is specified, is now

  also configurable at runtime via @SWANCTL_DIR@ environment variable.

* If RADIUS Accounting is enabled, the [[EapRadius|eap-radius]] plugin will add the session ID (@Acct-Session-Id@)

  to Access-Request messages, which e.g. simplifies associating database entries for IP leases and

  accounting with sessions (the session ID does not change when IKE_SAs are rekeyed, #2853).

* All IP addresses assigned by a RADIUS server are included in Accounting-Stop messages even if

  the client did not claim them, allowing to release them early in case of connection errors (#2856).

* Selectors installed on transport mode SAs by the _kernel-netlink_ plugin are now updated if an

  IP address changes (e.g. via MOBIKE) and it was part of the selectors.

* No deletes are sent anymore when a rekeyed CHILD_SA expires (#2815).

* The _bypass-lan_ plugin now tracks interfaces to handle subnets that move from one interface

  to another and properly update associated routes (#2820).

* Only valid and expected inbound IKEv2 messages are used to update the timestamp of the

  last received message (previously, retransmits also triggered an update).

* IKEv2 requests from responders are now ignored until the IKE_SA is fully established (e.g. if a

  DPD request from the peer arrives before the IKE_AUTH response does, commit:46bea1add9).

* Delayed IKE_SA_INIT responses with COOKIE notifies we already recevied are ignored, they caused

  another reset of the IKE_SA previously (#2837).

* Active and queued Quick Mode tasks are now adopted if the peer reauthenticates an IKEv1 SA

  while creating lots of CHILD_SAs.

* Newer versions of the FreeBSD kernel add an @SADB_X_EXT_SA2@ extension to @SADB_ACQUIRE@

  messages, which allows the _kernel-pfkey_ plugin to determine the reqid of the policy even if it

  wasn't installed by the daemon previously (e.g. when using FreeBSD's @if_ipsec(4)@ VTIs, which

  install policies themselves, commit:872b9b3e8d).

* Added support for RSA signatures with SHA-256 and SHA-512 to the _agent_ plugin. For older

  versions of ssh/gpg-agent that only support SHA-1, IKEv2 signature authentication has to be

  disabled via _charon.signature_authentication_.

* The _sshkey_ and _agent_ plugins support Ed25519/Ed448 SSH keys and signatures.

* The _openssl_ plugin supports X25519/X448 Diffie-Hellman and Ed25519/Ed448 keys and

  signatures when built against OpenSSL 1.1.1.

* Support for Ed25519, ChaCha20/Poly1305, SHA-3 and AES-CCM were added to the _botan_ plugin.

* The _mysql_ plugin now properly handles database connections with transactions

  under heavy load (#2779).

* IP addresses in [[HighAvailability#Address-pools|ha pools]] are now distributed evenly among all segments (#2828).

* Private key implementations may optionally provide a list of supported signature schemes,

  which, as described above, is used by the _tpm_ plugin because for each key on a TPM 2.0 the

  hash algorithm and for RSA also the padding scheme is predefined.

* The [[TestingEnvironment|testing environment]] is now based on Debian 9 (stretch) by default. This required

  some changes, in particular, updating to FreeRADIUS 3.x (which forced us to abandon the

  TNC@FHH patches and scenarios, commit:2fbe44bef3) and removing FIPS-enabled versions of

  OpenSSL (the FIPS module only supports OpenSSL 1.0.2).

* Most [[ConfigurationExamples|test scenarios]] were migrated to [[swanctl]].