4 - The lean stand-alone pt-tls-client can set up a RFC 6876 PT-TLS session
5 with a strongSwan policy enforcement point which uses the tnc-pdp charon
8 - The new TCG TNC SWID IMC/IMV pair supports targeted SWID requests for either
9 full SWID Tag or concise SWID Tag ID inventories.
11 - The XAuth backend in eap-radius now supports multiple XAuth exchanges for
12 different credential types and display messages. All user input gets
13 concatenated and verified with a single User-Password RADIUS attribute on
14 the AAA. With an AAA supporting it, one for example can implement
15 Password+Token authentication with proper dialogs on iOS and OS X clients.
17 - charon supports IKEv1 Mode Config exchange in push mode. The ipsec.conf
18 modeconfig=push option enables it for both client and server, the same way
21 - Using the "ah" ipsec.conf keyword on both IKEv1 and IKEv2 connections,
22 charon can negotiate and install Security Associations integrity-protected by
23 the Authentication Header protocol. Supported are plain AH(+IPComp) SAs only,
24 but not the deprecated RFC2401 style ESP+AH bundles.
26 - The generation of initialization vectors for IKE and ESP (when using libipsec)
27 is now modularized and IVs for e.g. AES-GCM are now correctly allocated
28 sequentially, while other algorithms like AES-CBC still use random IVs.
30 - The left and right options in ipsec.conf can take multiple address ranges
31 and subnets. This allows connection matching against a larger set of
32 addresses, for example to use a different connection for clients connecting
33 from a internal network.
35 - The kernel-libipsec userland IPsec backend now supports usage statistics,
36 volume based rekeying and accepts ESPv3 style TFC padded packets.
38 - With two new strongswan.conf options fwmarks can be used to implement
39 host-to-host tunnels with kernel-libipsec.
41 - load-tester supports transport mode connections and more complex traffic
42 selectors, including such using unique ports for each tunnel.
44 - The new dnscert plugin provides support for authentication via CERT RRs that
45 are protected via DNSSEC. The plugin was created by Ruslan N. Marchenko.
47 - The eap-radius plugin supports forwarding of several Cisco Unity specific
48 RADIUS attributes in corresponding configuration payloads.
50 - Database transactions are now abstracted and implemented by the two backends.
51 If you use MySQL make sure all tables use the InnoDB engine.
53 - libstrongswan now can provide an experimental custom implementation of the
54 printf family functions based on klibc if neither Vstr nor glibc style printf
55 hooks are available. This can avoid the Vstr dependency on some systems at
56 the cost of slower and less complete printf functions.
62 - Fixed a denial-of-service vulnerability triggered by specific XAuth usernames
63 and EAP identities (since 5.0.3), and PEM files (since 4.1.11). The crash
64 was caused by insufficient error handling in the is_asn1() function.
65 The vulnerability has been registered as CVE-2013-5018.
67 - The new charon-cmd command line IKE client can establish road warrior
68 connections using IKEv1 or IKEv2 with different authentication profiles.
69 It does not depend on any configuration files and can be configured using a
70 few simple command line options.
72 - The kernel-pfroute networking backend has been greatly improved. It now
73 can install virtual IPs on TUN devices on OS X and FreeBSD, allowing these
74 systems to act as a client in common road warrior scenarios.
76 - The new kernel-libipsec plugin uses TUN devices and libipsec to provide IPsec
77 processing in userland on Linux, FreeBSD and Mac OS X.
79 - The eap-radius plugin can now serve as an XAuth backend called xauth-radius,
80 directly verifying XAuth credentials using RADIUS User-Name/User-Password
81 attributes. This is more efficient than the existing xauth-eap+eap-radius
82 combination, and allows RADIUS servers without EAP support to act as AAA
85 - The new osx-attr plugin installs configuration attributes (currently DNS
86 servers) via SystemConfiguration on Mac OS X. The keychain plugin provides
87 certificates from the OS X keychain service.
89 - The sshkey plugin parses SSH public keys, which, together with the --agent
90 option for charon-cmd, allows the use of ssh-agent for authentication.
91 To configure SSH keys in ipsec.conf the left|rightrsasigkey options are
92 replaced with left|rightsigkey, which now take public keys in one of three
93 formats: SSH (RFC 4253, ssh: prefix), DNSKEY (RFC 3110, dns: prefix), and
94 PKCS#1 (the default, no prefix).
96 - Extraction of certificates and private keys from PKCS#12 files is now provided
97 by the new pkcs12 plugin or the openssl plugin. charon-cmd (--p12) as well
98 as charon (via P12 token in ipsec.secrets) can make use of this.
100 - IKEv2 can now negotiate transport mode and IPComp in NAT situations.
102 - IKEv2 exchange initiators now properly close an established IKE or CHILD_SA
103 on error conditions using an additional exchange, keeping state in sync
106 - Using a SQL database interface a Trusted Network Connect (TNC) Policy Manager
107 can generate specific measurement workitems for an arbitrary number of
108 Integrity Measurement Verifiers (IMVs) based on the history of the VPN user
111 - Several core classes in libstrongswan are now tested with unit tests. These
112 can be enabled with --enable-unit-tests and run with 'make check'. Coverage
113 reports can be generated with --enable-coverage and 'make coverage' (this
114 disables any optimization, so it should not be enabled when building
115 production releases).
117 - The leak-detective developer tool has been greatly improved. It works much
118 faster/stabler with multiple threads, does not use deprecated malloc hooks
119 anymore and has been ported to OS X.
121 - chunk_hash() is now based on SipHash-2-4 with a random key. This provides
122 better distribution and prevents hash flooding attacks when used with
125 - All default plugins implement the get_features() method to define features
126 and their dependencies. The plugin loader has been improved, so that plugins
127 in a custom load statement can be ordered freely or to express preferences
128 without being affected by dependencies between plugin features.
130 - A centralized thread can take care for watching multiple file descriptors
131 concurrently. This removes the need for a dedicated listener threads in
132 various plugins. The number of "reserved" threads for such tasks has been
133 reduced to about five, depending on the plugin configuration.
135 - Plugins that can be controlled by a UNIX socket IPC mechanism gained network
136 transparency. Third party applications querying these plugins now can use
137 TCP connections from a different host.
139 - libipsec now supports AES-GCM.
145 - Fixed a security vulnerability in the openssl plugin which was reported by
146 Kevin Wojtysiak. The vulnerability has been registered as CVE-2013-2944.
147 Before the fix, if the openssl plugin's ECDSA signature verification was used,
148 due to a misinterpretation of the error code returned by the OpenSSL
149 ECDSA_verify() function, an empty or zeroed signature was accepted as a
152 - The handling of a couple of other non-security relevant openssl return codes
155 - The tnc_ifmap plugin now publishes virtual IPv4 and IPv6 addresses via its
156 TCG TNC IF-MAP 2.1 interface.
158 - The charon.initiator_only option causes charon to ignore IKE initiation
161 - The openssl plugin can now use the openssl-fips library.
167 - The new ipseckey plugin enables authentication based on trustworthy public
168 keys stored as IPSECKEY resource records in the DNS and protected by DNSSEC.
169 To do so it uses a DNSSEC enabled resolver, like the one provided by the new
170 unbound plugin, which is based on libldns and libunbound. Both plugins were
171 created by Reto Guadagnini.
173 - Implemented the TCG TNC IF-IMV 1.4 draft making access requestor identities
174 available to an IMV. The OS IMV stores the AR identity together with the
175 device ID in the attest database.
177 - The openssl plugin now uses the AES-NI accelerated version of AES-GCM
178 if the hardware supports it.
180 - The eap-radius plugin can now assign virtual IPs to IKE clients using the
181 Framed-IP-Address attribute by using the "%radius" named pool in the
182 rightsourceip ipsec.conf option. Cisco Banner attributes are forwarded to
183 Unity-capable IKEv1 clients during mode config. charon now sends Interim
184 Accounting updates if requested by the RADIUS server, reports
185 sent/received packets in Accounting messages, and adds a Terminate-Cause
188 - The recently introduced "ipsec listcounters" command can report connection
189 specific counters by passing a connection name, and global or connection
190 counters can be reset by the "ipsec resetcounters" command.
192 - The strongSwan libpttls library provides an experimental implementation of
193 PT-TLS (RFC 6876), a Posture Transport Protocol over TLS.
195 - The charon systime-fix plugin can disable certificate lifetime checks on
196 embedded systems if the system time is obviously out of sync after bootup.
197 Certificates lifetimes get checked once the system time gets sane, closing
198 or reauthenticating connections using expired certificates.
200 - The "ikedscp" ipsec.conf option can set DiffServ code points on outgoing
203 - The new xauth-noauth plugin allows to use basic RSA or PSK authentication with
204 clients that cannot be configured without XAuth authentication. The plugin
205 simply concludes the XAuth exchange successfully without actually performing
206 any authentication. Therefore, to use this backend it has to be selected
207 explicitly with rightauth2=xauth-noauth.
209 - The new charon-tkm IKEv2 daemon delegates security critical operations to a
210 separate process. This has the benefit that the network facing daemon has no
211 knowledge of keying material used to protect child SAs. Thus subverting
212 charon-tkm does not result in the compromise of cryptographic keys.
213 The extracted functionality has been implemented from scratch in a minimal TCB
214 (trusted computing base) in the Ada programming language. Further information
215 can be found at http://www.codelabs.ch/tkm/.
220 - Implemented all IETF Standard PA-TNC attributes and an OS IMC/IMV
221 pair using them to transfer operating system information.
223 - The new "ipsec listcounters" command prints a list of global counter values
224 about received and sent IKE messages and rekeyings.
226 - A new lookip plugin can perform fast lookup of tunnel information using a
227 clients virtual IP and can send notifications about established or deleted
228 tunnels. The "ipsec lookip" command can be used to query such information
229 or receive notifications.
231 - The new error-notify plugin catches some common error conditions and allows
232 an external application to receive notifications for them over a UNIX socket.
234 - IKE proposals can now use a PRF algorithm different to that defined for
235 integrity protection. If an algorithm with a "prf" prefix is defined
236 explicitly (such as prfsha1 or prfsha256), no implicit PRF algorithm based on
237 the integrity algorithm is added to the proposal.
239 - The pkcs11 plugin can now load leftcert certificates from a smartcard for a
240 specific ipsec.conf conn section and cacert CA certificates for a specific ca
243 - The load-tester plugin gained additional options for certificate generation
244 and can load keys and multiple CA certificates from external files. It can
245 install a dedicated outer IP address for each tunnel and tunnel initiation
246 batches can be triggered and monitored externally using the
247 "ipsec load-tester" tool.
249 - PKCS#7 container parsing has been modularized, and the openssl plugin
250 gained an alternative implementation to decrypt and verify such files.
251 In contrast to our own DER parser, OpenSSL can handle BER files, which is
252 required for interoperability of our scepclient with EJBCA.
254 - Support for the proprietary IKEv1 fragmentation extension has been added.
255 Fragments are always handled on receipt but only sent if supported by the peer
256 and if enabled with the new fragmentation ipsec.conf option.
258 - IKEv1 in charon can now parse certificates received in PKCS#7 containers and
259 supports NAT traversal as used by Windows clients. Patches courtesy of
262 - The new rdrand plugin provides a high quality / high performance random
263 source using the Intel rdrand instruction found on Ivy Bridge processors.
265 - The integration test environment was updated and now uses KVM and reproducible
266 guest images based on Debian.
272 - Introduced the sending of the standard IETF Assessment Result
273 PA-TNC attribute by all strongSwan Integrity Measurement Verifiers.
275 - Extended PTS Attestation IMC/IMV pair to provide full evidence of
276 the Linux IMA measurement process. All pertinent file information
277 of a Linux OS can be collected and stored in an SQL database.
279 - The PA-TNC and PB-TNC protocols can now process huge data payloads
280 >64 kB by distributing PA-TNC attributes over multiple PA-TNC messages
281 and these messages over several PB-TNC batches. As long as no
282 consolidated recommandation from all IMVs can be obtained, the TNC
283 server requests more client data by sending an empty SDATA batch.
285 - The rightgroups2 ipsec.conf option can require group membership during
286 a second authentication round, for example during XAuth authentication
287 against a RADIUS server.
289 - The xauth-pam backend can authenticate IKEv1 XAuth and Hybrid authenticated
290 clients against any PAM service. The IKEv2 eap-gtc plugin does not use
291 PAM directly anymore, but can use any XAuth backend to verify credentials,
294 - The new unity plugin brings support for some parts of the IKEv1 Cisco Unity
295 Extension. As client, charon narrows traffic selectors to the received
296 Split-Include attributes and automatically installs IPsec bypass policies
297 for received Local-LAN attributes. As server, charon sends Split-Include
298 attributes for leftsubnet definitions containing multiple subnets to Unity-
301 - An EAP-Nak payload is returned by clients if the gateway requests an EAP
302 method that the client does not support. Clients can also request a specific
303 EAP method by configuring that method with leftauth.
305 - The eap-dynamic plugin handles EAP-Nak payloads returned by clients and uses
306 these to select a different EAP method supported/requested by the client.
307 The plugin initially requests the first registered method or the first method
308 configured with charon.plugins.eap-dynamic.preferred.
310 - The new left/rightdns options specify connection specific DNS servers to
311 request/respond in IKEv2 configuration payloads or IKEv2 mode config. leftdns
312 can be any (comma separated) combination of %config4 and %config6 to request
313 multiple servers, both for IPv4 and IPv6. rightdns takes a list of DNS server
314 IP addresses to return.
316 - The left/rightsourceip options now accept multiple addresses or pools.
317 leftsourceip can be any (comma separated) combination of %config4, %config6
318 or fixed IP addresses to request. rightsourceip accepts multiple explicitly
319 specified or referenced named pools.
321 - Multiple connections can now share a single address pool when they use the
322 same definition in one of the rightsourceip pools.
324 - The options charon.interfaces_ignore and charon.interfaces_use allow one to
325 configure the network interfaces used by the daemon.
327 - The kernel-netlink plugin supports the charon.install_virtual_ip_on option,
328 which specifies the interface on which virtual IP addresses will be installed.
329 If it is not specified the current behavior of using the outbound interface
332 - The kernel-netlink plugin tries to keep the current source address when
333 looking for valid routes to reach other hosts.
335 - The autotools build has been migrated to use a config.h header. strongSwan
336 development headers will get installed during "make install" if
337 --with-dev-headers has been passed to ./configure.
339 - All crypto primitives gained return values for most operations, allowing
340 crypto backends to fail, for example when using hardware accelerators.
346 - The charon IKE daemon gained experimental support for the IKEv1 protocol.
347 Pluto has been removed from the 5.x series, and unless strongSwan is
348 configured with --disable-ikev1 or --disable-ikev2, charon handles both
349 keying protocols. The feature-set of IKEv1 in charon is almost on par with
350 pluto, but currently does not support AH or bundled AH+ESP SAs. Beside
351 RSA/ECDSA, PSK and XAuth, charon also supports the Hybrid authentication
352 mode. Informations for interoperability and migration is available at
353 http://wiki.strongswan.org/projects/strongswan/wiki/CharonPlutoIKEv1.
355 - Charon's bus_t has been refactored so that loggers and other listeners are
356 now handled separately. The single lock was previously cause for deadlocks
357 if extensive listeners, such as the one provided by the updown plugin, wanted
358 to acquire locks that were held by other threads which in turn tried to log
359 messages, and thus were waiting to acquire the same lock currently held by
360 the thread calling the listener.
361 The implemented changes also allow the use of a read/write-lock for the
362 loggers which increases performance if multiple loggers are registered.
363 Besides several interface changes this last bit also changes the semantics
364 for loggers as these may now be called by multiple threads at the same time.
366 - Source routes are reinstalled if interfaces are reactivated or IP addresses
369 - The thread pool (processor_t) now has more control over the lifecycle of
370 a job (see job.h for details). In particular, it now controls the destruction
371 of jobs after execution and the cancellation of jobs during shutdown. Due to
372 these changes the requeueing feature, previously available to callback_job_t
373 only, is now available to all jobs (in addition to a new rescheduling
376 - In addition to trustchain key strength definitions for different public key
377 systems, the rightauth option now takes a list of signature hash algorithms
378 considered save for trustchain validation. For example, the setting
379 rightauth=rsa-2048-ecdsa-256-sha256-sha384-sha512 requires a trustchain
380 that uses at least RSA-2048 or ECDSA-256 keys and certificate signatures
381 using SHA-256 or better.
387 - Fixed a security vulnerability in the gmp plugin. If this plugin was used
388 for RSA signature verification an empty or zeroed signature was handled as
391 - Fixed several issues with reauthentication and address updates.
397 - The tnc-pdp plugin implements a RADIUS server interface allowing
398 a strongSwan TNC server to act as a Policy Decision Point.
400 - The eap-radius authentication backend enforces Session-Timeout attributes
401 using RFC4478 repeated authentication and acts upon RADIUS Dynamic
402 Authorization extensions, RFC 5176. Currently supported are disconnect
403 requests and CoA messages containing a Session-Timeout.
405 - The eap-radius plugin can forward arbitrary RADIUS attributes from and to
406 clients using custom IKEv2 notify payloads. The new radattr plugin reads
407 attributes to include from files and prints received attributes to the
410 - Added support for untruncated MD5 and SHA1 HMACs in ESP as used in
413 - The cmac plugin implements the AES-CMAC-96 and AES-CMAC-PRF-128 algorithms
414 as defined in RFC 4494 and RFC 4615, respectively.
416 - The resolve plugin automatically installs nameservers via resolvconf(8),
417 if it is installed, instead of modifying /etc/resolv.conf directly.
419 - The IKEv2 charon daemon supports now raw RSA public keys in RFC 3110
420 DNSKEY and PKCS#1 file format.
426 - Upgraded the TCG IF-IMC and IF-IMV C API to the upcoming version 1.3
427 which supports IF-TNCCS 2.0 long message types, the exclusive flags
428 and multiple IMC/IMV IDs. Both the TNC Client and Server as well as
429 the "Test", "Scanner", and "Attestation" IMC/IMV pairs were updated.
431 - Fully implemented the "TCG Attestation PTS Protocol: Binding to IF-M"
432 standard (TLV-based messages only). TPM-based remote attestation of
433 Linux IMA (Integrity Measurement Architecture) possible. Measurement
434 reference values are automatically stored in an SQLite database.
436 - The EAP-RADIUS authentication backend supports RADIUS accounting. It sends
437 start/stop messages containing Username, Framed-IP and Input/Output-Octets
438 attributes and has been tested against FreeRADIUS and Microsoft NPS.
440 - Added support for PKCS#8 encoded private keys via the libstrongswan
441 pkcs8 plugin. This is the default format used by some OpenSSL tools since
442 version 1.0.0 (e.g. openssl req with -keyout).
444 - Added session resumption support to the strongSwan TLS stack.
450 - Because of changing checksums before and after installation which caused
451 the integrity tests to fail we avoided directly linking libsimaka, libtls and
452 libtnccs to those libcharon plugins which make use of these dynamic libraries.
453 Instead we linked the libraries to the charon daemon. Unfortunately Ubuntu
454 11.10 activated the --as-needed ld option which discards explicit links
455 to dynamic libraries that are not actually used by the charon daemon itself,
456 thus causing failures during the loading of the plugins which depend on these
457 libraries for resolving external symbols.
459 - Therefore our approach of computing integrity checksums for plugins had to be
460 changed radically by moving the hash generation from the compilation to the
461 post-installation phase.
467 - The new libstrongswan certexpire plugin collects expiration information of
468 all used certificates and exports them to CSV files. It either directly
469 exports them or uses cron style scheduling for batch exports.
471 - starter passes unresolved hostnames to charon, allowing it to do name
472 resolution not before the connection attempt. This is especially useful with
473 connections between hosts using dynamic IP addresses. Thanks to Mirko Parthey
474 for the initial patch.
476 - The android plugin can now be used without the Android frontend patch and
477 provides DNS server registration and logging to logcat.
479 - Pluto and starter (plus stroke and whack) have been ported to Android.
481 - Support for ECDSA private and public key operations has been added to the
482 pkcs11 plugin. The plugin now also provides DH and ECDH via PKCS#11 and can
483 use tokens as random number generators (RNG). By default only private key
484 operations are enabled, more advanced features have to be enabled by their
485 option in strongswan.conf. This also applies to public key operations (even
486 for keys not stored on the token) which were enabled by default before.
488 - The libstrongswan plugin system now supports detailed plugin dependencies.
489 Many plugins have been extended to export its capabilities and requirements.
490 This allows the plugin loader to resolve plugin loading order automatically,
491 and in future releases, to dynamically load the required features on demand.
492 Existing third party plugins are source (but not binary) compatible if they
493 properly initialize the new get_features() plugin function to NULL.
495 - The tnc-ifmap plugin implements a TNC IF-MAP 2.0 client which can deliver
496 metadata about IKE_SAs via a SOAP interface to a MAP server. The tnc-ifmap
497 plugin requires the Apache Axis2/C library.
503 - Our private libraries (e.g. libstrongswan) are not installed directly in
504 prefix/lib anymore. Instead a subdirectory is used (prefix/lib/ipsec/ by
505 default). The plugins directory is also moved from libexec/ipsec/ to that
508 - The dynamic IMC/IMV libraries were moved from the plugins directory to
509 a new imcvs directory in the prefix/lib/ipsec/ subdirectory.
511 - Job priorities were introduced to prevent thread starvation caused by too
512 many threads handling blocking operations (such as CRL fetching). Refer to
513 strongswan.conf(5) for details.
515 - Two new strongswan.conf options allow to fine-tune performance on IKEv2
516 gateways by dropping IKE_SA_INIT requests on high load.
518 - IKEv2 charon daemon supports start PASS and DROP shunt policies
519 preventing traffic to go through IPsec connections. Installation of the
520 shunt policies either via the XFRM netfilter or PFKEYv2 IPsec kernel
523 - The history of policies installed in the kernel is now tracked so that e.g.
524 trap policies are correctly updated when reauthenticated SAs are terminated.
526 - IMC/IMV Scanner pair implementing the RFC 5792 PA-TNC (IF-M) protocol.
527 Using "netstat -l" the IMC scans open listening ports on the TNC client
528 and sends a port list to the IMV which based on a port policy decides if
529 the client is admitted to the network.
530 (--enable-imc-scanner/--enable-imv-scanner).
532 - IMC/IMV Test pair implementing the RFC 5792 PA-TNC (IF-M) protocol.
533 (--enable-imc-test/--enable-imv-test).
535 - The IKEv2 close action does not use the same value as the ipsec.conf dpdaction
536 setting, but the value defined by its own closeaction keyword. The action
537 is triggered if the remote peer closes a CHILD_SA unexpectedly.
543 - The whitelist plugin for the IKEv2 daemon maintains an in-memory identity
544 whitelist. Any connection attempt of peers not whitelisted will get rejected.
545 The 'ipsec whitelist' utility provides a simple command line frontend for
546 whitelist administration.
548 - The duplicheck plugin provides a specialized form of duplicate checking,
549 doing a liveness check on the old SA and optionally notify a third party
550 application about detected duplicates.
552 - The coupling plugin permanently couples two or more devices by limiting
553 authentication to previously used certificates.
555 - In the case that the peer config and child config don't have the same name
556 (usually in SQL database defined connections), ipsec up|route <peer config>
557 starts|routes all associated child configs and ipsec up|route <child config>
558 only starts|routes the specific child config.
560 - fixed the encoding and parsing of X.509 certificate policy statements (CPS).
562 - Duncan Salerno contributed the eap-sim-pcsc plugin implementing a
563 pcsc-lite based SIM card backend.
565 - The eap-peap plugin implements the EAP PEAP protocol. Interoperates
566 successfully with a FreeRADIUS server and Windows 7 Agile VPN clients.
568 - The IKEv2 daemon charon rereads strongswan.conf on SIGHUP and instructs
569 all plugins to reload. Currently only the eap-radius and the attr plugins
570 support configuration reloading.
572 - Added userland support to the IKEv2 daemon for Extended Sequence Numbers
573 support coming with Linux 2.6.39. To enable ESN on a connection, add
574 the 'esn' keyword to the proposal. The default proposal uses 32-bit sequence
575 numbers only ('noesn'), and the same value is used if no ESN mode is
576 specified. To negotiate ESN support with the peer, include both, e.g.
577 esp=aes128-sha1-esn-noesn.
579 - In addition to ESN, Linux 2.6.39 gained support for replay windows larger
580 than 32 packets. The new global strongswan.conf option 'charon.replay_window'
581 configures the size of the replay window, in packets.
587 - Sansar Choinyambuu implemented the RFC 5793 Posture Broker Protocol (BP)
588 compatible with Trusted Network Connect (TNC). The TNCCS 2.0 protocol
589 requires the tnccs_20, tnc_imc and tnc_imv plugins but does not depend
590 on the libtnc library. Any available IMV/IMC pairs conforming to the
591 Trusted Computing Group's TNC-IF-IMV/IMC 1.2 interface specification
592 can be loaded via /etc/tnc_config.
594 - Re-implemented the TNCCS 1.1 protocol by using the tnc_imc and tnc_imv
595 in place of the external libtnc library.
597 - The tnccs_dynamic plugin loaded on a TNC server in addition to the
598 tnccs_11 and tnccs_20 plugins, dynamically detects the IF-TNCCS
599 protocol version used by a TNC client and invokes an instance of
600 the corresponding protocol stack.
602 - IKE and ESP proposals can now be stored in an SQL database using a
603 new proposals table. The start_action field in the child_configs
604 tables allows the automatic starting or routing of connections stored
607 - The new certificate_authorities and certificate_distribution_points
608 tables make it possible to store CRL and OCSP Certificate Distribution
609 points in an SQL database.
611 - The new 'include' statement allows to recursively include other files in
612 strongswan.conf. Existing sections and values are thereby extended and
613 replaced, respectively.
615 - Due to the changes in the parser for strongswan.conf, the configuration
616 syntax for the attr plugin has changed. Previously, it was possible to
617 specify multiple values of a specific attribute type by adding multiple
618 key/value pairs with the same key (e.g. dns) to the plugins.attr section.
619 Because values with the same key now replace previously defined values
620 this is not possible anymore. As an alternative, multiple values can be
621 specified by separating them with a comma (e.g. dns = 1.2.3.4, 2.3.4.5).
623 - ipsec listalgs now appends (set in square brackets) to each crypto
624 algorithm listed the plugin that registered the function.
626 - Traffic Flow Confidentiality padding supported with Linux 2.6.38 can be used
627 by the IKEv2 daemon. The ipsec.conf 'tfc' keyword pads all packets to a given
628 boundary, the special value '%mtu' pads all packets to the path MTU.
630 - The new af-alg plugin can use various crypto primitives of the Linux Crypto
631 API using the AF_ALG interface introduced with 2.6.38. This removes the need
632 for additional userland implementations of symmetric cipher, hash, hmac and
635 - The IKEv2 daemon supports the INITIAL_CONTACT notify as initiator and
636 responder. The notify is sent when initiating configurations with a unique
637 policy, set in ipsec.conf via the global 'uniqueids' option.
639 - The conftest conformance testing framework enables the IKEv2 stack to perform
640 many tests using a distinct tool and configuration frontend. Various hooks
641 can alter reserved bits, flags, add custom notifies and proposals, reorder
642 or drop messages and much more. It is enabled using the --enable-conftest
645 - The new libstrongswan constraints plugin provides advanced X.509 constraint
646 checking. In addition to X.509 pathLen constraints, the plugin checks for
647 nameConstraints and certificatePolicies, including policyMappings and
648 policyConstraints. The x509 certificate plugin and the pki tool have been
649 enhanced to support these extensions. The new left/rightcertpolicy ipsec.conf
650 connection keywords take OIDs a peer certificate must have.
652 - The left/rightauth ipsec.conf keywords accept values with a minimum strength
653 for trustchain public keys in bits, such as rsa-2048 or ecdsa-256.
655 - The revocation and x509 libstrongswan plugins and the pki tool gained basic
656 support for delta CRLs.
662 - IMPORTANT: the default keyexchange mode 'ike' is changing with release 4.5
663 from 'ikev1' to 'ikev2', thus commemorating the five year anniversary of the
664 IKEv2 RFC 4306 and its mature successor RFC 5996. The time has definitively
665 come for IKEv1 to go into retirement and to cede its place to the much more
666 robust, powerful and versatile IKEv2 protocol!
668 - Added new ctr, ccm and gcm plugins providing Counter, Counter with CBC-MAC
669 and Galois/Counter Modes based on existing CBC implementations. These
670 new plugins bring support for AES and Camellia Counter and CCM algorithms
671 and the AES GCM algorithms for use in IKEv2.
673 - The new pkcs11 plugin brings full Smartcard support to the IKEv2 daemon and
674 the pki utility using one or more PKCS#11 libraries. It currently supports
675 RSA private and public key operations and loads X.509 certificates from
678 - Implemented a general purpose TLS stack based on crypto and credential
679 primitives of libstrongswan. libtls supports TLS versions 1.0, 1.1 and 1.2,
680 ECDHE-ECDSA/RSA, DHE-RSA and RSA key exchange algorithms and RSA/ECDSA based
681 client authentication.
683 - Based on libtls, the eap-tls plugin brings certificate based EAP
684 authentication for client and server. It is compatible to Windows 7 IKEv2
685 Smartcard authentication and the OpenSSL based FreeRADIUS EAP-TLS backend.
687 - Implemented the TNCCS 1.1 Trusted Network Connect protocol using the
688 libtnc library on the strongSwan client and server side via the tnccs_11
689 plugin and optionally connecting to a TNC@FHH-enhanced FreeRADIUS AAA server.
690 Depending on the resulting TNC Recommendation, strongSwan clients are granted
691 access to a network behind a strongSwan gateway (allow), are put into a
692 remediation zone (isolate) or are blocked (none), respectively. Any number
693 of Integrity Measurement Collector/Verifier pairs can be attached
694 via the tnc-imc and tnc-imv charon plugins.
696 - The IKEv1 daemon pluto now uses the same kernel interfaces as the IKEv2
697 daemon charon. As a result of this, pluto now supports xfrm marks which
698 were introduced in charon with 4.4.1.
700 - Applets for Maemo 5 (Nokia) allow to easily configure and control IKEv2
701 based VPN connections with EAP authentication on supported devices.
703 - The RADIUS plugin eap-radius now supports multiple RADIUS servers for
704 redundant setups. Servers are selected by a defined priority, server load and
707 - The simple led plugin controls hardware LEDs through the Linux LED subsystem.
708 It currently shows activity of the IKE daemon and is a good example how to
709 implement a simple event listener.
711 - Improved MOBIKE behavior in several corner cases, for instance, if the
712 initial responder moves to a different address.
714 - Fixed left-/rightnexthop option, which was broken since 4.4.0.
716 - Fixed a bug not releasing a virtual IP address to a pool if the XAUTH
717 identity was different from the IKE identity.
719 - Fixed the alignment of ModeConfig messages on 4-byte boundaries in the
720 case where the attributes are not a multiple of 4 bytes (e.g. Cisco's
723 - Fixed the interoperability of the socket_raw and socket_default
726 - Added man page for strongswan.conf
732 - Support of xfrm marks in IPsec SAs and IPsec policies introduced
733 with the Linux 2.6.34 kernel. For details see the example scenarios
734 ikev2/nat-two-rw-mark, ikev2/rw-nat-mark-in-out and ikev2/net2net-psk-dscp.
736 - The PLUTO_MARK_IN and PLUTO_ESP_ENC environment variables can be used
737 in a user-specific updown script to set marks on inbound ESP or
740 - The openssl plugin now supports X.509 certificate and CRL functions.
742 - OCSP/CRL checking in IKEv2 has been moved to the revocation plugin, enabled
743 by default. Plase update manual load directives in strongswan.conf.
745 - RFC3779 ipAddrBlock constraint checking has been moved to the addrblock
746 plugin, disabled by default. Enable it and update manual load directives
747 in strongswan.conf, if required.
749 - The pki utility supports CRL generation using the --signcrl command.
751 - The ipsec pki --self, --issue and --req commands now support output in
752 PEM format using the --outform pem option.
754 - The major refactoring of the IKEv1 Mode Config functionality now allows
755 the transport and handling of any Mode Config attribute.
757 - The RADIUS proxy plugin eap-radius now supports multiple servers. Configured
758 servers are chosen randomly, with the option to prefer a specific server.
759 Non-responding servers are degraded by the selection process.
761 - The ipsec pool tool manages arbitrary configuration attributes stored
762 in an SQL database. ipsec pool --help gives the details.
764 - The new eap-simaka-sql plugin acts as a backend for EAP-SIM and EAP-AKA,
765 reading triplets/quintuplets from an SQL database.
767 - The High Availability plugin now supports a HA enabled in-memory address
768 pool and Node reintegration without IKE_SA rekeying. The latter allows
769 clients without IKE_SA rekeying support to keep connected during
770 reintegration. Additionally, many other issues have been fixed in the ha
773 - Fixed a potential remote code execution vulnerability resulting from
774 the misuse of snprintf(). The vulnerability is exploitable by
775 unauthenticated users.
781 - The IKEv2 High Availability plugin has been integrated. It provides
782 load sharing and failover capabilities in a cluster of currently two nodes,
783 based on an extend ClusterIP kernel module. More information is available at
784 http://wiki.strongswan.org/projects/strongswan/wiki/HighAvailability.
785 The development of the High Availability functionality was sponsored by
786 secunet Security Networks AG.
788 - Added IKEv1 and IKEv2 configuration support for the AES-GMAC
789 authentication-only ESP cipher. Our aes_gmac kernel patch or a Linux
790 2.6.34 kernel is required to make AES-GMAC available via the XFRM
793 - Added support for Diffie-Hellman groups 22, 23 and 24 to the gmp, gcrypt
794 and openssl plugins, usable by both pluto and charon. The new proposal
795 keywords are modp1024s160, modp2048s224 and modp2048s256. Thanks to Joy Latten
796 from IBM for his contribution.
798 - The IKEv1 pluto daemon supports RAM-based virtual IP pools using
799 the rightsourceip directive with a subnet from which addresses
802 - The ipsec pki --gen and --pub commands now allow the output of
803 private and public keys in PEM format using the --outform pem
806 - The new DHCP plugin queries virtual IP addresses for clients from a DHCP
807 server using broadcasts, or a defined server using the
808 charon.plugins.dhcp.server strongswan.conf option. DNS/WINS server information
809 is additionally served to clients if the DHCP server provides such
810 information. The plugin is used in ipsec.conf configurations having
811 rightsourceip set to %dhcp.
813 - A new plugin called farp fakes ARP responses for virtual IP addresses
814 handed out to clients from the IKEv2 daemon charon. The plugin lets a
815 road-warrior act as a client on the local LAN if it uses a virtual IP
816 from the responders subnet, e.g. acquired using the DHCP plugin.
818 - The existing IKEv2 socket implementations have been migrated to the
819 socket-default and the socket-raw plugins. The new socket-dynamic plugin
820 binds sockets dynamically to ports configured via the left-/rightikeport
821 ipsec.conf connection parameters.
823 - The android charon plugin stores received DNS server information as "net.dns"
824 system properties, as used by the Android platform.
830 - The IKEv2 daemon supports RFC 3779 IP address block constraints
831 carried as a critical X.509v3 extension in the peer certificate.
833 - The ipsec pool --add|del dns|nbns command manages DNS and NBNS name
834 server entries that are sent via the IKEv1 Mode Config or IKEv2
835 Configuration Payload to remote clients.
837 - The Camellia cipher can be used as an IKEv1 encryption algorithm.
839 - The IKEv1 and IKEV2 daemons now check certificate path length constraints.
841 - The new ipsec.conf conn option "inactivity" closes a CHILD_SA if no traffic
842 was sent or received within the given interval. To close the complete IKE_SA
843 if its only CHILD_SA was inactive, set the global strongswan.conf option
844 "charon.inactivity_close_ike" to yes.
846 - More detailed IKEv2 EAP payload information in debug output
848 - IKEv2 EAP-SIM and EAP-AKA share joint libsimaka library
850 - Added required userland changes for proper SHA256 and SHA384/512 in ESP that
851 will be introduced with Linux 2.6.33. The "sha256"/"sha2_256" keyword now
852 configures the kernel with 128 bit truncation, not the non-standard 96
853 bit truncation used by previous releases. To use the old 96 bit truncation
854 scheme, the new "sha256_96" proposal keyword has been introduced.
856 - Fixed IPComp in tunnel mode, stripping out the duplicated outer header. This
857 change makes IPcomp tunnel mode connections incompatible with previous
858 releases; disable compression on such tunnels.
860 - Fixed BEET mode connections on recent kernels by installing SAs with
861 appropriate traffic selectors, based on a patch by Michael Rossberg.
863 - Using extensions (such as BEET mode) and crypto algorithms (such as twofish,
864 serpent, sha256_96) allocated in the private use space now require that we
865 know its meaning, i.e. we are talking to strongSwan. Use the new
866 "charon.send_vendor_id" option in strongswan.conf to let the remote peer know
869 - Experimental support for draft-eronen-ipsec-ikev2-eap-auth, where the
870 responder omits public key authentication in favor of a mutual authentication
871 method. To enable EAP-only authentication, set rightauth=eap on the responder
872 to rely only on the MSK constructed AUTH payload. This not-yet standardized
873 extension requires the strongSwan vendor ID introduced above.
875 - The IKEv1 daemon ignores the Juniper SRX notification type 40001, thus
876 allowing interoperability.
882 - The IKEv1 pluto daemon can now use SQL-based address pools to deal out
883 virtual IP addresses as a Mode Config server. The pool capability has been
884 migrated from charon's sql plugin to a new attr-sql plugin which is loaded
885 by libstrongswan and which can be used by both daemons either with a SQLite
886 or MySQL database and the corresponding plugin.
888 - Plugin names have been streamlined: EAP plugins now have a dash after eap
889 (e.g. eap-sim), as it is used with the --enable-eap-sim ./configure option.
890 Plugin configuration sections in strongswan.conf now use the same name as the
891 plugin itself (i.e. with a dash). Make sure to update "load" directives and
892 the affected plugin sections in existing strongswan.conf files.
894 - The private/public key parsing and encoding has been split up into
895 separate pkcs1, pgp, pem and dnskey plugins. The public key implementation
896 plugins gmp, gcrypt and openssl can all make use of them.
898 - The EAP-AKA plugin can use different backends for USIM/quintuplet
899 calculations, very similar to the EAP-SIM plugin. The existing 3GPP2 software
900 implementation has been migrated to a separate plugin.
902 - The IKEv2 daemon charon gained basic PGP support. It can use locally installed
903 peer certificates and can issue signatures based on RSA private keys.
905 - The new 'ipsec pki' tool provides a set of commands to maintain a public
906 key infrastructure. It currently supports operations to create RSA and ECDSA
907 private/public keys, calculate fingerprints and issue or verify certificates.
909 - Charon uses a monotonic time source for statistics and job queueing, behaving
910 correctly if the system time changes (e.g. when using NTP).
912 - In addition to time based rekeying, charon supports IPsec SA lifetimes based
913 on processed volume or number of packets. They new ipsec.conf paramaters
914 'lifetime' (an alias to 'keylife'), 'lifebytes' and 'lifepackets' handle
915 SA timeouts, while the parameters 'margintime' (an alias to rekeymargin),
916 'marginbytes' and 'marginpackets' trigger the rekeying before a SA expires.
917 The existing parameter 'rekeyfuzz' affects all margins.
919 - If no CA/Gateway certificate is specified in the NetworkManager plugin,
920 charon uses a set of trusted root certificates preinstalled by distributions.
921 The directory containing CA certificates can be specified using the
922 --with-nm-ca-dir=path configure option.
924 - Fixed the encoding of the Email relative distinguished name in left|rightid
927 - Fixed the broken parsing of PKCS#7 wrapped certificates by the pluto daemon.
929 - Fixed smartcard-based authentication in the pluto daemon which was broken by
930 the ECDSA support introduced with the 4.3.2 release.
932 - A patch contributed by Heiko Hund fixes mixed IPv6 in IPv4 and vice versa
933 tunnels established with the IKEv1 pluto daemon.
935 - The pluto daemon now uses the libstrongswan x509 plugin for certificates and
936 CRls and the struct id type was replaced by identification_t used by charon
937 and the libstrongswan library.
943 - IKEv2 charon daemon ported to FreeBSD and Mac OS X. Installation details can
944 be found on wiki.strongswan.org.
946 - ipsec statusall shows the number of bytes transmitted and received over
947 ESP connections configured by the IKEv2 charon daemon.
949 - The IKEv2 charon daemon supports include files in ipsec.secrets.
955 - The configuration option --enable-integrity-test plus the strongswan.conf
956 option libstrongswan.integrity_test = yes activate integrity tests
957 of the IKE daemons charon and pluto, libstrongswan and all loaded
958 plugins. Thus dynamic library misconfigurations and non-malicious file
959 manipulations can be reliably detected.
961 - The new default setting libstrongswan.ecp_x_coordinate_only=yes allows
962 IKEv1 interoperability with MS Windows using the ECP DH groups 19 and 20.
964 - The IKEv1 pluto daemon now supports the AES-CCM and AES-GCM ESP
965 authenticated encryption algorithms.
967 - The IKEv1 pluto daemon now supports V4 OpenPGP keys.
969 - The RDN parser vulnerability discovered by Orange Labs research team
970 was not completely fixed in version 4.3.2. Some more modifications
971 had to be applied to the asn1_length() function to make it robust.
977 - The new gcrypt plugin provides symmetric cipher, hasher, RNG, Diffie-Hellman
978 and RSA crypto primitives using the LGPL licensed GNU gcrypt library.
980 - libstrongswan features an integrated crypto selftest framework for registered
981 algorithms. The test-vector plugin provides a first set of test vectors and
982 allows pluto and charon to rely on tested crypto algorithms.
984 - pluto can now use all libstrongswan plugins with the exception of x509 and xcbc.
985 Thanks to the openssl plugin, the ECP Diffie-Hellman groups 19, 20, 21, 25, and
986 26 as well as ECDSA-256, ECDSA-384, and ECDSA-521 authentication can be used
989 - Applying their fuzzing tool, the Orange Labs vulnerability research team found
990 another two DoS vulnerabilities, one in the rather old ASN.1 parser of Relative
991 Distinguished Names (RDNs) and a second one in the conversion of ASN.1 UTCTIME
992 and GENERALIZEDTIME strings to a time_t value.
998 - The nm plugin now passes DNS/NBNS server information to NetworkManager,
999 allowing a gateway administrator to set DNS/NBNS configuration on clients
1002 - The nm plugin also accepts CA certificates for gateway authentication. If
1003 a CA certificate is configured, strongSwan uses the entered gateway address
1004 as its idenitity, requiring the gateways certificate to contain the same as
1005 subjectAltName. This allows a gateway administrator to deploy the same
1006 certificates to Windows 7 and NetworkManager clients.
1008 - The command ipsec purgeike deletes IKEv2 SAs that don't have a CHILD SA.
1009 The command ipsec down <conn>{n} deletes CHILD SA instance n of connection
1010 <conn> whereas ipsec down <conn>{*} deletes all CHILD SA instances.
1011 The command ipsec down <conn>[n] deletes IKE SA instance n of connection
1012 <conn> plus dependent CHILD SAs whereas ipsec down <conn>[*] deletes all
1013 IKE SA instances of connection <conn>.
1015 - Fixed a regression introduced in 4.3.0 where EAP authentication calculated
1016 the AUTH payload incorrectly. Further, the EAP-MSCHAPv2 MSK key derivation
1017 has been updated to be compatible with the Windows 7 Release Candidate.
1019 - Refactored installation of triggering policies. Routed policies are handled
1020 outside of IKE_SAs to keep them installed in any case. A tunnel gets
1021 established only once, even if initiation is delayed due network outages.
1023 - Improved the handling of multiple acquire signals triggered by the kernel.
1025 - Fixed two DoS vulnerabilities in the charon daemon that were discovered by
1026 fuzzing techniques: 1) Sending a malformed IKE_SA_INIT request leaved an
1027 incomplete state which caused a null pointer dereference if a subsequent
1028 CREATE_CHILD_SA request was sent. 2) Sending an IKE_AUTH request with either
1029 a missing TSi or TSr payload caused a null pointer derefence because the
1030 checks for TSi and TSr were interchanged. The IKEv2 fuzzer used was
1031 developed by the Orange Labs vulnerability research team. The tool was
1032 initially written by Gabriel Campana and is now maintained by Laurent Butti.
1034 - Added support for AES counter mode in ESP in IKEv2 using the proposal
1035 keywords aes128ctr, aes192ctr and aes256ctr.
1037 - Further progress in refactoring pluto: Use of the curl and ldap plugins
1038 for fetching crls and OCSP. Use of the random plugin to get keying material
1039 from /dev/random or /dev/urandom. Use of the openssl plugin as an alternative
1040 to the aes, des, sha1, sha2, and md5 plugins. The blowfish, twofish, and
1041 serpent encryption plugins are now optional and are not enabled by default.
1047 - Support for the IKEv2 Multiple Authentication Exchanges extension (RFC4739).
1048 Initiators and responders can use several authentication rounds (e.g. RSA
1049 followed by EAP) to authenticate. The new ipsec.conf leftauth/rightauth and
1050 leftauth2/rightauth2 parameters define own authentication rounds or setup
1051 constraints for the remote peer. See the ipsec.conf man page for more detials.
1053 - If glibc printf hooks (register_printf_function) are not available,
1054 strongSwan can use the vstr string library to run on non-glibc systems.
1056 - The IKEv2 charon daemon can now configure the ESP CAMELLIA-CBC cipher
1057 (esp=camellia128|192|256).
1059 - Refactored the pluto and scepclient code to use basic functions (memory
1060 allocation, leak detective, chunk handling, printf_hooks, strongswan.conf
1061 attributes, ASN.1 parser, etc.) from the libstrongswan library.
1063 - Up to two DNS and WINS servers to be sent via IKEv1 ModeConfig can be
1064 configured in the pluto section of strongswan.conf.
1070 - The new server-side EAP RADIUS plugin (--enable-eap-radius)
1071 relays EAP messages to and from a RADIUS server. Successfully
1072 tested with with a freeradius server using EAP-MD5 and EAP-SIM.
1074 - A vulnerability in the Dead Peer Detection (RFC 3706) code was found by
1075 Gerd v. Egidy <gerd.von.egidy@intra2net.com> of Intra2net AG affecting
1076 all Openswan and strongSwan releases. A malicious (or expired ISAKMP)
1077 R_U_THERE or R_U_THERE_ACK Dead Peer Detection packet can cause the
1078 pluto IKE daemon to crash and restart. No authentication or encryption
1079 is required to trigger this bug. One spoofed UDP packet can cause the
1080 pluto IKE daemon to restart and be unresponsive for a few seconds while
1081 restarting. This DPD null state vulnerability has been officially
1082 registered as CVE-2009-0790 and is fixed by this release.
1084 - ASN.1 to time_t conversion caused a time wrap-around for
1085 dates after Jan 18 03:14:07 UTC 2038 on 32-bit platforms.
1086 As a workaround such dates are set to the maximum representable
1087 time, i.e. Jan 19 03:14:07 UTC 2038.
1089 - Distinguished Names containing wildcards (*) are not sent in the
1090 IDr payload anymore.
1096 - Fixed a use-after-free bug in the DPD timeout section of the
1097 IKEv1 pluto daemon which sporadically caused a segfault.
1099 - Fixed a crash in the IKEv2 charon daemon occurring with
1100 mixed RAM-based and SQL-based virtual IP address pools.
1102 - Fixed ASN.1 parsing of algorithmIdentifier objects where the
1103 parameters field is optional.
1105 - Ported nm plugin to NetworkManager 7.1.
1111 - Support of the EAP-MSCHAPv2 protocol enabled by the option
1112 --enable-eap-mschapv2. Requires the MD4 hash algorithm enabled
1113 either by --enable-md4 or --enable-openssl.
1115 - Assignment of up to two DNS and up to two WINS servers to peers via
1116 the IKEv2 Configuration Payload (CP). The IPv4 or IPv6 nameserver
1117 addresses are defined in strongswan.conf.
1119 - The strongSwan applet for the Gnome NetworkManager is now built and
1120 distributed as a separate tarball under the name NetworkManager-strongswan.
1126 - Fixed ESP NULL encryption broken by the refactoring of keymat.c.
1127 Also introduced proper initialization and disposal of keying material.
1129 - Fixed the missing listing of connection definitions in ipsec statusall
1130 broken by an unfortunate local variable overload.
1136 - Several performance improvements to handle thousands of tunnels with almost
1137 linear upscaling. All relevant data structures have been replaced by faster
1138 counterparts with better lookup times.
1140 - Better parallelization to run charon on multiple cores. Due to improved
1141 ressource locking and other optimizations the daemon can take full
1142 advantage of 16 or even more cores.
1144 - The load-tester plugin can use a NULL Diffie-Hellman group and simulate
1145 unique identities and certificates by signing peer certificates using a CA
1148 - The redesigned stroke in-memory IP pool handles leases. The "ipsec leases"
1149 command queries assigned leases.
1151 - Added support for smartcards in charon by using the ENGINE API provided by
1152 OpenSSL, based on patches by Michael RoĂŸberg.
1154 - The Padlock plugin supports the hardware RNG found on VIA CPUs to provide a
1155 reliable source of randomness.
1160 - Flexible configuration of logging subsystem allowing to log to multiple
1161 syslog facilities or to files using fine-grained log levels for each target.
1163 - Load testing plugin to do stress testing of the IKEv2 daemon against self
1164 or another host. Found and fixed issues during tests in the multi-threaded
1165 use of the OpenSSL plugin.
1167 - Added profiling code to synchronization primitives to find bottlenecks if
1168 running on multiple cores. Found and fixed an issue where parts of the
1169 Diffie-Hellman calculation acquired an exclusive lock. This greatly improves
1170 parallelization to multiple cores.
1172 - updown script invocation has been separated into a plugin of its own to
1173 further slim down the daemon core.
1175 - Separated IKE_SA/CHILD_SA key derivation process into a closed system,
1176 allowing future implementations to use a secured environment in e.g. kernel
1179 - The kernel interface of charon has been modularized. XFRM NETLINK (default)
1180 and PFKEY (--enable-kernel-pfkey) interface plugins for the native IPsec
1181 stack of the Linux 2.6 kernel as well as a PFKEY interface for the KLIPS
1182 IPsec stack (--enable-kernel-klips) are provided.
1184 - Basic Mobile IPv6 support has been introduced, securing Binding Update
1185 messages as well as tunneled traffic between Mobile Node and Home Agent.
1186 The installpolicy=no option allows peaceful cooperation with a dominant
1187 mip6d daemon and the new type=transport_proxy implements the special MIPv6
1188 IPsec transport proxy mode where the IKEv2 daemon uses the Care-of-Address
1189 but the IPsec SA is set up for the Home Address.
1191 - Implemented migration of Mobile IPv6 connections using the KMADDRESS
1192 field contained in XFRM_MSG_MIGRATE messages sent by the mip6d daemon
1193 via the Linux 2.6.28 (or appropriately patched) kernel.
1199 - IKEv2 charon daemon supports authentication based on raw public keys
1200 stored in the SQL database backend. The ipsec listpubkeys command
1201 lists the available raw public keys via the stroke interface.
1203 - Several MOBIKE improvements: Detect changes in NAT mappings in DPD exchanges,
1204 handle events if kernel detects NAT mapping changes in UDP-encapsulated
1205 ESP packets (requires kernel patch), reuse old addesses in MOBIKE updates as
1206 long as possible and other fixes.
1208 - Fixed a bug in addr_in_subnet() which caused insertion of wrong source
1209 routes for destination subnets having netwmasks not being a multiple of 8 bits.
1210 Thanks go to Wolfgang Steudel, TU Ilmenau for reporting this bug.
1216 - Fixed a Denial-of-Service vulnerability where an IKE_SA_INIT message with
1217 a KE payload containing zeroes only can cause a crash of the IKEv2 charon
1218 daemon due to a NULL pointer returned by the mpz_export() function of the
1219 GNU Multiprecision Library (GMP). Thanks go to Mu Dynamics Research Labs
1220 for making us aware of this problem.
1222 - The new agent plugin provides a private key implementation on top of an
1225 - The NetworkManager plugin has been extended to support certificate client
1226 authentication using RSA keys loaded from a file or using ssh-agent.
1228 - Daemon capability dropping has been ported to libcap and must be enabled
1229 explicitly --with-capabilities=libcap. Future version will support the
1230 newer libcap2 library.
1232 - ipsec listalgs lists the IKEv2 cryptografic algorithms registered with the
1233 charon keying daemon.
1239 - A NetworkManager plugin allows GUI-based configuration of road-warrior
1240 clients in a simple way. It features X509 based gateway authentication
1241 and EAP client authentication, tunnel setup/teardown and storing passwords
1242 in the Gnome Keyring.
1244 - A new EAP-GTC plugin implements draft-sheffer-ikev2-gtc-00.txt and allows
1245 username/password authentication against any PAM service on the gateway.
1246 The new EAP method interacts nicely with the NetworkManager plugin and allows
1247 client authentication against e.g. LDAP.
1249 - Improved support for the EAP-Identity method. The new ipsec.conf eap_identity
1250 parameter defines an additional identity to pass to the server in EAP
1253 - The "ipsec statusall" command now lists CA restrictions, EAP
1254 authentication types and EAP identities.
1256 - Fixed two multithreading deadlocks occurring when starting up
1257 several hundred tunnels concurrently.
1259 - Fixed the --enable-integrity-test configure option which
1260 computes a SHA-1 checksum over the libstrongswan library.
1266 - Consistent logging of IKE and CHILD SAs at the audit (AUD) level.
1268 - Improved the performance of the SQL-based virtual IP address pool
1269 by introducing an additional addresses table. The leases table
1270 storing only history information has become optional and can be
1271 disabled by setting charon.plugins.sql.lease_history = no in
1274 - The XFRM_STATE_AF_UNSPEC flag added to xfrm.h allows IPv4-over-IPv6
1275 and IPv6-over-IPv4 tunnels with the 2.6.26 and later Linux kernels.
1277 - management of different virtual IP pools for different
1278 network interfaces have become possible.
1280 - fixed a bug which prevented the assignment of more than 256
1281 virtual IP addresses from a pool managed by an sql database.
1283 - fixed a bug which did not delete own IPCOMP SAs in the kernel.
1289 - Added statistics functions to ipsec pool --status and ipsec pool --leases
1290 and input validation checks to various ipsec pool commands.
1292 - ipsec statusall now lists all loaded charon plugins and displays
1293 the negotiated IKEv2 cipher suite proposals.
1295 - The openssl plugin supports the elliptic curve Diffie-Hellman groups
1296 19, 20, 21, 25, and 26.
1298 - The openssl plugin supports ECDSA authentication using elliptic curve
1301 - Fixed a bug in stroke which caused multiple charon threads to close
1302 the file descriptors during packet transfers over the stroke socket.
1304 - ESP sequence numbers are now migrated in IPsec SA updates handled by
1305 MOBIKE. Works only with Linux kernels >= 2.6.17.
1311 - Fixed the strongswan.conf path configuration problem that occurred when
1312 --sysconfig was not set explicitly in ./configure.
1314 - Fixed a number of minor bugs that where discovered during the 4th
1315 IKEv2 interoperability workshop in San Antonio, TX.
1321 - Plugins for libstrongswan and charon can optionally be loaded according
1322 to a configuration in strongswan.conf. Most components provide a
1323 "load = " option followed by a space separated list of plugins to load.
1324 This allows e.g. the fallback from a hardware crypto accelerator to
1325 to software-based crypto plugins.
1327 - Charons SQL plugin has been extended by a virtual IP address pool.
1328 Configurations with a rightsourceip=%poolname setting query a SQLite or
1329 MySQL database for leases. The "ipsec pool" command helps in administrating
1330 the pool database. See ipsec pool --help for the available options
1332 - The Authenticated Encryption Algorithms AES-CCM-8/12/16 and AES-GCM-8/12/16
1333 for ESP are now supported starting with the Linux 2.6.25 kernel. The
1334 syntax is e.g. esp=aes128ccm12 or esp=aes256gcm16.
1340 - Support for "Hash and URL" encoded certificate payloads has been implemented
1341 in the IKEv2 daemon charon. Using the "certuribase" option of a CA section
1342 allows to assign a base URL to all certificates issued by the specified CA.
1343 The final URL is then built by concatenating that base and the hex encoded
1344 SHA1 hash of the DER encoded certificate. Note that this feature is disabled
1345 by default and must be enabled using the option "charon.hash_and_url".
1347 - The IKEv2 daemon charon now supports the "uniqueids" option to close multiple
1348 IKE_SAs with the same peer. The option value "keep" prefers existing
1349 connection setups over new ones, where the value "replace" replaces existing
1352 - The crypto factory in libstrongswan additionally supports random number
1353 generators, plugins may provide other sources of randomness. The default
1354 plugin reads raw random data from /dev/(u)random.
1356 - Extended the credential framework by a caching option to allow plugins
1357 persistent caching of fetched credentials. The "cachecrl" option has been
1360 - The new trustchain verification introduced in 4.2.0 has been parallelized.
1361 Threads fetching CRL or OCSP information no longer block other threads.
1363 - A new IKEv2 configuration attribute framework has been introduced allowing
1364 plugins to provide virtual IP addresses, and in the future, other
1365 configuration attribute services (e.g. DNS/WINS servers).
1367 - The stroke plugin has been extended to provide virtual IP addresses from
1368 a pool defined in ipsec.conf. The "rightsourceip" parameter now accepts
1369 address pools in CIDR notation (e.g. 10.1.1.0/24). The parameter also accepts
1370 the value "%poolname", where "poolname" identifies a pool provided by a
1373 - Fixed compilation on uClibc and a couple of other minor bugs.
1375 - Set DPD defaults in ipsec starter to dpd_delay=30s and dpd_timeout=150s.
1377 - The IKEv1 pluto daemon now supports the ESP encryption algorithm CAMELLIA
1378 with key lengths of 128, 192, and 256 bits, as well as the authentication
1379 algorithm AES_XCBC_MAC. Configuration example: esp=camellia192-aesxcbc.
1385 - libstrongswan has been modularized to attach crypto algorithms,
1386 credential implementations (keys, certificates) and fetchers dynamically
1387 through plugins. Existing code has been ported to plugins:
1388 - RSA/Diffie-Hellman implementation using the GNU Multi Precision library
1389 - X509 certificate system supporting CRLs, OCSP and attribute certificates
1390 - Multiple plugins providing crypto algorithms in software
1391 - CURL and OpenLDAP fetcher
1393 - libstrongswan gained a relational database API which uses pluggable database
1394 providers. Plugins for MySQL and SQLite are available.
1396 - The IKEv2 keying daemon charon is more extensible. Generic plugins may provide
1397 connection configuration, credentials and EAP methods or control the daemon.
1398 Existing code has been ported to plugins:
1399 - EAP-AKA, EAP-SIM, EAP-MD5 and EAP-Identity
1400 - stroke configuration, credential and control (compatible to pluto)
1401 - XML bases management protocol to control and query the daemon
1402 The following new plugins are available:
1403 - An experimental SQL configuration, credential and logging plugin on
1404 top of either MySQL or SQLite
1405 - A unit testing plugin to run tests at daemon startup
1407 - The authentication and credential framework in charon has been heavily
1408 refactored to support modular credential providers, proper
1409 CERTREQ/CERT payload exchanges and extensible authorization rules.
1411 - The framework of strongSwan Manager has envolved to the web application
1412 framework libfast (FastCGI Application Server w/ Templates) and is usable
1413 by other applications.
1419 - IKE rekeying in NAT situations did not inherit the NAT conditions
1420 to the rekeyed IKE_SA so that the UDP encapsulation was lost with
1421 the next CHILD_SA rekeying.
1423 - Wrong type definition of the next_payload variable in id_payload.c
1424 caused an INVALID_SYNTAX error on PowerPC platforms.
1426 - Implemented IKEv2 EAP-SIM server and client test modules that use
1427 triplets stored in a file. For details on the configuration see
1428 the scenario 'ikev2/rw-eap-sim-rsa'.
1434 - Fixed error in the ordering of the certinfo_t records in the ocsp cache that
1435 caused multiple entries of the same serial number to be created.
1437 - Implementation of a simple EAP-MD5 module which provides CHAP
1438 authentication. This may be interesting in conjunction with certificate
1439 based server authentication, as weak passwords can't be brute forced
1440 (in contradiction to traditional IKEv2 PSK).
1442 - A complete software based implementation of EAP-AKA, using algorithms
1443 specified in 3GPP2 (S.S0055). This implementation does not use an USIM,
1444 but reads the secrets from ipsec.secrets. Make sure to read eap_aka.h
1447 - Support for vendor specific EAP methods using Expanded EAP types. The
1448 interface to EAP modules has been slightly changed, so make sure to
1449 check the changes if you're already rolling your own modules.
1455 - The default _updown script now dynamically inserts and removes ip6tables
1456 firewall rules if leftfirewall=yes is set in IPv6 connections. New IPv6
1457 net-net and roadwarrior (PSK/RSA) scenarios for both IKEv1 and IKEV2 were
1460 - Implemented RFC4478 repeated authentication to force EAP/Virtual-IP clients
1461 to reestablish an IKE_SA within a given timeframe.
1463 - strongSwan Manager supports configuration listing, initiation and termination
1464 of IKE and CHILD_SAs.
1466 - Fixes and improvements to multithreading code.
1468 - IKEv2 plugins have been renamed to libcharon-* to avoid naming conflicts.
1469 Make sure to remove the old plugins in $libexecdir/ipsec, otherwise they get
1476 - Removed recursive pthread mutexes since uClibc doesn't support them.
1482 - In NAT traversal situations and multiple queued Quick Modes,
1483 those pending connections inserted by auto=start after the
1484 port floating from 500 to 4500 were erronously deleted.
1486 - Added a "forceencaps" connection parameter to enforce UDP encapsulation
1487 to surmount restrictive firewalls. NAT detection payloads are faked to
1488 simulate a NAT situation and trick the other peer into NAT mode (IKEv2 only).
1490 - Preview of strongSwan Manager, a web based configuration and monitoring
1491 application. It uses a new XML control interface to query the IKEv2 daemon
1492 (see http://wiki.strongswan.org/wiki/Manager).
1494 - Experimental SQLite configuration backend which will provide the configuration
1495 interface for strongSwan Manager in future releases.
1497 - Further improvements to MOBIKE support.
1503 - Since some third party IKEv2 implementations run into
1504 problems with strongSwan announcing MOBIKE capability per
1505 default, MOBIKE can be disabled on a per-connection-basis
1506 using the mobike=no option. Whereas mobike=no disables the
1507 sending of the MOBIKE_SUPPORTED notification and the floating
1508 to UDP port 4500 with the IKE_AUTH request even if no NAT
1509 situation has been detected, strongSwan will still support
1510 MOBIKE acting as a responder.
1512 - the default ipsec routing table plus its corresponding priority
1513 used for inserting source routes has been changed from 100 to 220.
1514 It can be configured using the --with-ipsec-routing-table and
1515 --with-ipsec-routing-table-prio options.
1517 - the --enable-integrity-test configure option tests the
1518 integrity of the libstrongswan crypto code during the charon
1521 - the --disable-xauth-vid configure option disables the sending
1522 of the XAUTH vendor ID. This can be used as a workaround when
1523 interoperating with some Windows VPN clients that get into
1524 trouble upon reception of an XAUTH VID without eXtended
1525 AUTHentication having been configured.
1527 - ipsec stroke now supports the rereadsecrets, rereadaacerts,
1528 rereadacerts, and listacerts options.
1534 - If a DNS lookup failure occurs when resolving right=%<FQDN>
1535 or right=<FQDN> combined with rightallowany=yes then the
1536 connection is not updated by ipsec starter thus preventing
1537 the disruption of an active IPsec connection. Only if the DNS
1538 lookup successfully returns with a changed IP address the
1539 corresponding connection definition is updated.
1541 - Routes installed by the keying daemons are now in a separate
1542 routing table with the ID 100 to avoid conflicts with the main
1543 table. Route lookup for IKEv2 traffic is done in userspace to ignore
1544 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
1550 - The pluto IKEv1 daemon now exhibits the same behaviour as its
1551 IKEv2 companion charon by inserting an explicit route via the
1552 _updown script only if a sourceip exists. This is admissible
1553 since routing through the IPsec tunnel is handled automatically
1554 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
1555 parameter is not required any more.
1557 - The new IKEv1 parameter right|leftallowany parameters helps to handle
1558 the case where both peers possess dynamic IP addresses that are
1559 usually resolved using DynDNS or a similar service. The configuration
1564 can be used by the initiator to start up a connection to a peer
1565 by resolving peer.foo.bar into the currently allocated IP address.
1566 Thanks to the rightallowany flag the connection behaves later on
1571 so that the peer can rekey the connection as an initiator when his
1572 IP address changes. An alternative notation is
1576 which will implicitly set rightallowany=yes.
1578 - ipsec starter now fails more gracefully in the presence of parsing
1579 errors. Flawed ca and conn section are discarded and pluto is started
1580 if non-fatal errors only were encountered. If right=%peer.foo.bar
1581 cannot be resolved by DNS then right=%any will be used so that passive
1582 connections as a responder are still possible.
1584 - The new pkcs11initargs parameter that can be placed in the
1585 setup config section of /etc/ipsec.conf allows the definition
1586 of an argument string that is used with the PKCS#11 C_Initialize()
1587 function. This non-standard feature is required by the NSS softoken
1588 library. This patch was contributed by Robert Varga.
1590 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
1591 which caused a segmentation fault in the presence of unknown
1592 or misspelt keywords in ipsec.conf. This bug fix was contributed
1595 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
1596 address configuration changes and updates IKE and IPsec SAs dynamically.
1602 - IKEv2 peer configuration selection now can be based on a given
1603 certification authority using the rightca= statement.
1605 - IKEv2 authentication based on RSA signatures now can handle multiple
1606 certificates issued for a given peer ID. This allows a smooth transition
1607 in the case of a peer certificate renewal.
1609 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
1610 client and returning requested virtual IPs using rightsourceip=%config
1611 on the server. If the server does not support configuration payloads, the
1612 client enforces its leftsourceip parameter.
1614 - The ./configure options --with-uid/--with-gid allow pluto and charon
1615 to drop their privileges to a minimum and change to an other UID/GID. This
1616 improves the systems security, as a possible intruder may only get the
1617 CAP_NET_ADMIN capability.
1619 - Further modularization of charon: Pluggable control interface and
1620 configuration backend modules provide extensibility. The control interface
1621 for stroke is included, and further interfaces using DBUS (NetworkManager)
1622 or XML are on the way. A backend for storing configurations in the daemon
1623 is provided and more advanced backends (using e.g. a database) are trivial
1626 - Fixed a compilation failure in libfreeswan occurring with Linux kernel
1633 - Support for an additional Diffie-Hellman exchange when creating/rekeying
1634 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
1635 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
1636 is implemented properly for rekeying.
1638 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
1639 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
1641 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
1643 - Added support for EAP modules which do not establish an MSK.
1645 - Removed the dependencies from the /usr/include/linux/ headers by
1646 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
1648 - crlNumber is now listed by ipsec listcrls
1650 - The xauth_modules.verify_secret() function now passes the
1657 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
1658 cookies are enabled and protect against DoS attacks with faked source
1659 addresses. Number of IKE_SAs in CONNECTING state is also limited per
1660 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
1661 compared to properly detect retransmissions and incoming retransmits are
1662 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
1664 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
1665 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
1666 enabled by cachecrls=yes.
1668 - Added the configuration options --enable-nat-transport which enables
1669 the potentially insecure NAT traversal for IPsec transport mode and
1670 --disable-vendor-id which disables the sending of the strongSwan
1673 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
1674 a segmentation fault if a malformed payload was detected in the
1675 IKE MR2 message and pluto tried to send an encrypted notification
1678 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
1679 with Windows 2003 Server which uses a wrong VID hash.
1685 - Support of SHA2_384 hash function for protecting IKEv1
1686 negotiations and support of SHA2 signatures in X.509 certificates.
1688 - Fixed a serious bug in the computation of the SHA2-512 HMAC
1689 function. Introduced automatic self-test of all IKEv1 hash
1690 and hmac functions during pluto startup. Failure of a self-test
1691 currently issues a warning only but does not exit pluto [yet].
1693 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
1695 - Full support of CA information sections. ipsec listcainfos
1696 now shows all collected crlDistributionPoints and OCSP
1699 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
1700 This feature requires the HTTP fetching capabilities of the libcurl
1701 library which must be enabled by setting the --enable-http configure
1704 - Refactored core of the IKEv2 message processing code, allowing better
1705 code reuse and separation.
1707 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
1708 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
1709 by the requestor and installed in a resolv.conf file.
1711 - The IKEv2 daemon charon installs a route for each IPsec policy to use
1712 the correct source address even if an application does not explicitly
1715 - Integrated the EAP framework into charon which loads pluggable EAP library
1716 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
1717 on the client side, while the "eap" parameter on the server side defines
1718 the EAP method to use for client authentication.
1719 A generic client side EAP-Identity module and an EAP-SIM authentication
1720 module using a third party card reader implementation are included.
1722 - Added client side support for cookies.
1724 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
1725 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
1726 fixes to enhance interoperability with other implementations.
1732 - strongSwan now interoperates with the NCP Secure Entry Client,
1733 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
1734 XAUTH and Mode Config.
1736 - UNITY attributes are now recognized and UNITY_BANNER is set
1737 to a default string.
1743 - IKEv1: Support for extended authentication (XAUTH) in combination
1744 with ISAKMP Main Mode RSA or PSK authentication. Both client and
1745 server side were implemented. Handling of user credentials can
1746 be done by a run-time loadable XAUTH module. By default user
1747 credentials are stored in ipsec.secrets.
1749 - IKEv2: Support for reauthentication when rekeying
1751 - IKEv2: Support for transport mode
1753 - fixed a lot of bugs related to byte order
1755 - various other bugfixes
1761 - IKEv1: Implementation of ModeConfig push mode via the new connection
1762 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
1764 - IKEv1: The command ipsec statusall now shows "DPD active" for all
1765 ISAKMP SAs that are under active Dead Peer Detection control.
1767 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
1768 Instead of logger, special printf() functions are used to directly
1769 print objects like hosts (%H) identifications (%D), certificates (%Q),
1770 etc. The number of debugging levels have been reduced to:
1772 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
1774 The debugging levels can either be specified statically in ipsec.conf as
1777 charondebug="lib 1, cfg 3, net 2"
1779 or changed at runtime via stroke as
1781 ipsec stroke loglevel cfg 2
1787 - Implemented full support for IPv6-in-IPv6 tunnels.
1789 - Added configuration options for dead peer detection in IKEv2. dpd_action
1790 types "clear", "hold" and "restart" are supported. The dpd_timeout
1791 value is not used, as the normal retransmission policy applies to
1792 detect dead peers. The dpd_delay parameter enables sending of empty
1793 informational message to detect dead peers in case of inactivity.
1795 - Added support for preshared keys in IKEv2. PSK keys configured in
1796 ipsec.secrets are loaded. The authby parameter specifies the authentication
1797 method to authentificate ourself, the other peer may use PSK or RSA.
1799 - Changed retransmission policy to respect the keyingtries parameter.
1801 - Added private key decryption. PEM keys encrypted with AES-128/192/256
1802 or 3DES are supported.
1804 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
1805 encrypt IKE traffic.
1807 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
1808 signed with such a hash algorithm.
1810 - Added initial support for updown scripts. The actions up-host/client and
1811 down-host/client are executed. The leftfirewall=yes parameter
1812 uses the default updown script to insert dynamic firewall rules, a custom
1813 updown script may be specified with the leftupdown parameter.
1819 - Added support for the auto=route ipsec.conf parameter and the
1820 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
1821 CHILD_SAs dynamically on demand when traffic is detected by the
1824 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
1825 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
1826 new keys are generated using perfect forward secrecy. An optional flag
1827 which enforces reauthentication will be implemented later.
1829 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
1830 algorithm configuration statements.
1836 - Full X.509 certificate trust chain verification has been implemented.
1837 End entity certificates can be exchanged via CERT payloads. The current
1838 default is leftsendcert=always, since CERTREQ payloads are not supported
1839 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
1841 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
1842 would offer more possibilities for traffic selection, but the Linux kernel
1843 currently does not support it. That's why we stick with these simple
1844 ipsec.conf rules for now.
1846 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
1847 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
1850 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
1851 notify payloads to detect NAT routers between the peers. It switches
1852 to port 4500, uses UDP encapsulated ESP packets, handles peer address
1853 changes gracefully and sends keep alive message periodically.
1855 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
1856 rekeying, more shared code, cleaner design, proper retransmission
1857 and a more extensible code base.
1859 - The mixed PSK/RSA roadwarrior detection capability introduced by the
1860 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
1861 payloads by the responder right before any defined IKE Main Mode state had
1862 been established. Although any form of bad proposal syntax was being correctly
1863 detected by the payload parser, the subsequent error handler didn't check
1864 the state pointer before logging current state information, causing an
1865 immediate crash of the pluto keying daemon due to a NULL pointer.
1871 - Added algorithm selection to charon: New default algorithms for
1872 ike=aes128-sha-modp2048, as both daemons support it. The default
1873 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
1874 the ike/esp parameter the same way as pluto. As this syntax does
1875 not allow specification of a pseudo random function, the same
1876 algorithm as for integrity is used (currently sha/md5). Supported
1878 Encryption: aes128, aes192, aes256
1879 Integrity/PRF: md5, sha (using hmac)
1880 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
1882 Encryption: aes128, aes192, aes256, 3des, blowfish128,
1883 blowfish192, blowfish256
1884 Integrity: md5, sha1
1885 More IKE encryption algorithms will come after porting libcrypto into
1888 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
1889 perfect forward secrecy is used. The rekeying parameters rekey,
1890 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
1891 when using IKEv2. WARNING: charon currently is unable to handle
1892 simultaneous rekeying. To avoid such a situation, use a large
1893 rekeyfuzz, or even better, set rekey=no on one peer.
1895 - support for host2host, net2net, host2net (roadwarrior) tunnels
1896 using predefined RSA certificates (see uml scenarios for
1897 configuration examples).
1899 - new build environment featuring autotools. Features such
1900 as HTTP, LDAP and smartcard support may be enabled using
1901 the ./configure script. Changing install directories
1902 is possible, too. See ./configure --help for more details.
1904 - better integration of charon with ipsec starter, which allows
1905 (almost) transparent operation with both daemons. charon
1906 handles ipsec commands up, down, status, statusall, listall,
1907 listcerts and allows proper load, reload and delete of connections
1914 - initial support of the IKEv2 protocol. Connections in
1915 ipsec.conf designated by keyexchange=ikev2 are negotiated
1916 by the new IKEv2 charon keying daemon whereas those marked
1917 by keyexchange=ikev1 or the default keyexchange=ike are
1918 handled thy the IKEv1 pluto keying daemon. Currently only
1919 a limited subset of functions are available with IKEv2
1920 (Default AES encryption, authentication based on locally
1921 imported X.509 certificates, unencrypted private RSA keys
1922 in PKCS#1 file format, limited functionality of the ipsec
1929 - the dynamic iptables rules from the _updown_x509 template
1930 for KLIPS and the _updown_policy template for NETKEY have
1931 been merged into the default _updown script. The existing
1932 left|rightfirewall keyword causes the automatic insertion
1933 and deletion of ACCEPT rules for tunneled traffic upon
1934 the successful setup and teardown of an IPsec SA, respectively.
1935 left|rightfirwall can be used with KLIPS under any Linux 2.4
1936 kernel or with NETKEY under a Linux kernel version >= 2.6.16
1937 in conjunction with iptables >= 1.3.5. For NETKEY under a Linux
1938 kernel version < 2.6.16 which does not support IPsec policy
1939 matching yet, please continue to use a copy of the _updown_espmark
1940 template loaded via the left|rightupdown keyword.
1942 - a new left|righthostaccess keyword has been introduced which
1943 can be used in conjunction with left|rightfirewall and the
1944 default _updown script. By default leftfirewall=yes inserts
1945 a bi-directional iptables FORWARD rule for a local client network
1946 with a netmask different from 255.255.255.255 (single host).
1947 This does not allow to access the VPN gateway host via its
1948 internal network interface which is part of the client subnet
1949 because an iptables INPUT and OUTPUT rule would be required.
1950 lefthostaccess=yes will cause this additional ACCEPT rules to
1953 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
1954 payload is preparsed in order to find out whether the roadwarrior
1955 requests PSK or RSA so that a matching connection candidate can
1962 - the new _updown_policy template allows ipsec policy based
1963 iptables firewall rules. Required are iptables version
1964 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
1965 the _updown_espmark template, so that no INPUT mangle rules
1966 are required any more.
1968 - added support of DPD restart mode
1970 - ipsec starter now allows the use of wildcards in include
1971 statements as e.g. in "include /etc/my_ipsec/*.conf".
1972 Patch courtesy of Matthias Haas.
1974 - the Netscape OID 'employeeNumber' is now recognized and can be
1975 used as a Relative Distinguished Name in certificates.
1981 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
1982 command and not of ipsec setup any more.
1984 - ipsec starter now supports AH authentication in conjunction with
1985 ESP encryption. AH authentication is configured in ipsec.conf
1986 via the auth=ah parameter.
1988 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
1989 ipsec whack --scencrypt|scdecrypt <args>.
1991 - get_sa_info() now determines for the native netkey IPsec stack
1992 the exact time of the last use of an active eroute. This information
1993 is used by the Dead Peer Detection algorithm and is also displayed by
1994 the ipsec status command.
2000 - running under the native Linux 2.6 IPsec stack, the function
2001 get_sa_info() is called by ipsec auto --status to display the current
2002 number of transmitted bytes per IPsec SA.
2004 - get_sa_info() is also used by the Dead Peer Detection process to detect
2005 recent ESP activity. If ESP traffic was received from the peer within
2006 the last dpd_delay interval then no R_Y_THERE notification must be sent.
2008 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
2009 in ID_DER_ASN1_DN identities. The following notations are possible:
2011 rightid="unstructuredName=John Doe"
2012 rightid="UN=John Doe"
2014 - fixed a long-standing bug which caused PSK-based roadwarrior connections
2015 to segfault in the function id.c:same_id() called by keys.c:get_secret()
2016 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
2023 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
2025 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
2027 - in order to guarantee backwards-compatibility with the script-based
2028 auto function (e.g. auto --replace), the ipsec starter scripts stores
2029 the defaultroute information in the temporary file /var/run/ipsec.info.
2031 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
2032 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
2035 - the ipsec starter now also recognizes the parameters authby=never and
2036 type=passthrough|pass|drop|reject.
2042 - ipsec starter now supports the also parameter which allows
2043 a modular structure of the connection definitions. Thus
2044 "ipsec start" is now ready to replace "ipsec setup".
2050 - Mathieu Lafon's popular ipsec starter tool has been added to the
2051 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
2052 for his integration work. ipsec starter is a C program which is going
2053 to replace the various shell and awk starter scripts (setup, _plutoload,
2054 _plutostart, _realsetup, _startklips, _confread, and auto). Since
2055 ipsec.conf is now parsed only once, the starting of multiple tunnels is
2056 accelerated tremedously.
2058 - Added support of %defaultroute to the ipsec starter. If the IP address
2059 changes, a HUP signal to the ipsec starter will automatically
2060 reload pluto's connections.
2062 - moved most compile time configurations from pluto/Makefile to
2063 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
2064 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
2066 - removed the ipsec verify and ipsec newhostkey commands
2068 - fixed some 64-bit issues in formatted print statements
2070 - The scepclient functionality implementing the Simple Certificate
2071 Enrollment Protocol (SCEP) is nearly complete but hasn't been
2078 - CA certicates are now automatically loaded from a smartcard
2079 or USB crypto token and appear in the ipsec auto --listcacerts
2086 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
2087 library that does not support the C_Encrypt() Cryptoki
2088 function (e.g. OpenSC), the RSA encryption is done in
2089 software using the public key fetched from the smartcard.
2091 - The scepclient function now allows to define the
2092 validity of a self-signed certificate using the --days,
2093 --startdate, and --enddate options. The default validity
2094 has been changed from one year to five years.
2100 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
2101 interface to other applications for RSA encryption and decryption
2102 via the whack interface. Notation:
2104 ipsec whack --scencrypt <data>
2105 [--inbase 16|hex|64|base64|256|text|ascii]
2106 [--outbase 16|hex|64|base64|256|text|ascii]
2109 ipsec whack --scdecrypt <data>
2110 [--inbase 16|hex|64|base64|256|text|ascii]
2111 [--outbase 16|hex|64|base64|256|text|ascii]
2114 The default setting for inbase and outbase is hex.
2116 The new proxy interface can be used for securing symmetric
2117 encryption keys required by the cryptoloop or dm-crypt
2118 disk encryption schemes, especially in the case when
2119 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
2122 - if the file /etc/ipsec.secrets is lacking during the startup of
2123 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
2124 containing a 2048 bit RSA private key and a matching self-signed
2125 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
2126 is automatically generated by calling the function
2128 ipsec scepclient --out pkcs1 --out cert-self
2130 scepclient was written by Jan Hutter and Martin Willi, students
2131 at the University of Applied Sciences in Rapperswil, Switzerland.
2137 - the current extension of the PKCS#7 framework introduced
2138 a parsing error in PKCS#7 wrapped X.509 certificates that are
2139 e.g. transmitted by Windows XP when multi-level CAs are used.
2140 the parsing syntax has been fixed.
2142 - added a patch by Gerald Richter which tolerates multiple occurrences
2143 of the ipsec0 interface when using KLIPS.
2149 - with gawk-3.1.4 the word "default2 has become a protected
2150 keyword for use in switch statements and cannot be used any
2151 more in the strongSwan scripts. This problem has been
2152 solved by renaming "default" to "defaults" and "setdefault"
2153 in the scripts _confread and auto, respectively.
2155 - introduced the parameter leftsendcert with the values
2157 always|yes (the default, always send a cert)
2158 ifasked (send the cert only upon a cert request)
2159 never|no (never send a cert, used for raw RSA keys and
2162 - fixed the initialization of the ESP key length to a default of
2163 128 bits in the case that the peer does not send a key length
2164 attribute for AES encryption.
2166 - applied Herbert Xu's uniqueIDs patch
2168 - applied Herbert Xu's CLOEXEC patches
2174 - CRLs can now be cached also in the case when the issuer's
2175 certificate does not contain a subjectKeyIdentifier field.
2176 In that case the subjectKeyIdentifier is computed by pluto as the
2177 160 bit SHA-1 hash of the issuer's public key in compliance
2178 with section 4.2.1.2 of RFC 3280.
2180 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
2181 not only multiple Quick Modes of a given connection but also
2182 multiple connections between two security gateways.
2188 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
2189 installed either by setting auto=route in ipsec.conf or by
2190 a connection put into hold, generates an XFRM_AQUIRE event
2191 for each packet that wants to use the not-yet exisiting
2192 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
2193 the Quick Mode queue, causing multiple IPsec SA to be
2194 established in rapid succession. Starting with strongswan-2.5.1
2195 only a single IPsec SA is established per host-pair connection.
2197 - Right after loading the PKCS#11 module, all smartcard slots are
2198 searched for certificates. The result can be viewed using
2201 ipsec auto --listcards
2203 The certificate objects found in the slots are numbered
2204 starting with #1, #2, etc. This position number can be used to address
2205 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
2206 in ipsec.conf and ipsec.secrets, respectively:
2208 %smartcard (selects object #1)
2209 %smartcard#1 (selects object #1)
2210 %smartcard#3 (selects object #3)
2212 As an alternative the existing retrieval scheme can be used:
2214 %smartcard:45 (selects object with id=45)
2215 %smartcard0 (selects first object in slot 0)
2216 %smartcard4:45 (selects object in slot 4 with id=45)
2218 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
2219 private key flags either C_Sign() or C_Decrypt() is used
2220 to generate a signature.
2222 - The output buffer length parameter siglen in C_Sign()
2223 is now initialized to the actual size of the output
2224 buffer prior to the function call. This fixes the
2225 CKR_BUFFER_TOO_SMALL error that could occur when using
2226 the OpenSC PKCS#11 module.
2228 - Changed the initialization of the PKCS#11 CK_MECHANISM in
2229 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
2231 - Refactored the RSA public/private key code and transferred it
2232 from keys.c to the new pkcs1.c file as a preparatory step
2233 towards the release of the SCEP client.
2239 - The loading of a PKCS#11 smartcard library module during
2240 runtime does not require OpenSC library functions any more
2241 because the corresponding code has been integrated into
2242 smartcard.c. Also the RSAREF pkcs11 header files have been
2243 included in a newly created pluto/rsaref directory so that
2244 no external include path has to be defined any longer.
2246 - A long-awaited feature has been implemented at last:
2247 The local caching of CRLs fetched via HTTP or LDAP, activated
2248 by the parameter cachecrls=yes in the config setup section
2249 of ipsec.conf. The dynamically fetched CRLs are stored under
2250 a unique file name containing the issuer's subjectKeyID
2251 in /etc/ipsec.d/crls.
2253 - Applied a one-line patch courtesy of Michael Richardson
2254 from the Openswan project which fixes the kernel-oops
2255 in KLIPS when an snmp daemon is running on the same box.
2261 - Eliminated null length CRL distribution point strings.
2263 - Fixed a trust path evaluation bug introduced with 2.4.3
2269 - Improved the joint OCSP / CRL revocation policy.
2270 OCSP responses have precedence over CRL entries.
2272 - Introduced support of CRLv2 reason codes.
2274 - Fixed a bug with key-pad equipped readers which caused
2275 pluto to prompt for the pin via the console when the first
2276 occasion to enter the pin via the key-pad was missed.
2278 - When pluto is built with LDAP_V3 enabled, the library
2279 liblber required by newer versions of openldap is now
2286 - Added the _updown_espmark template which requires all
2287 incoming ESP traffic to be marked with a default mark
2290 - Introduced the pkcs11keepstate parameter in the config setup
2291 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
2292 session and login states are kept as long as possible during
2293 the lifetime of pluto. This means that a PIN entry via a key
2294 pad has to be done only once.
2296 - Introduced the pkcs11module parameter in the config setup
2297 section of ipsec.conf which specifies the PKCS#11 module
2298 to be used with smart cards. Example:
2300 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
2302 - Added support of smartcard readers equipped with a PIN pad.
2304 - Added patch by Jay Pfeifer which detects when netkey
2305 modules have been statically built into the Linux 2.6 kernel.
2307 - Added two patches by Herbert Xu. The first uses ip xfrm
2308 instead of setkey to flush the IPsec policy database. The
2309 second sets the optional flag in inbound IPComp SAs only.
2311 - Applied Ulrich Weber's patch which fixes an interoperability
2312 problem between native IPsec and KLIPS systems caused by
2313 setting the replay window to 32 instead of 0 for ipcomp.
2319 - Fixed a bug which caused an unwanted Mode Config request
2320 to be initiated in the case where "right" was used to denote
2321 the local side in ipsec.conf and "left" the remote side,
2322 contrary to the recommendation that "right" be remote and
2329 - updated Vendor ID to strongSwan-2.4.0
2331 - updated copyright statement to include David Buechi and
2338 - strongSwan now communicates with attached smartcards and
2339 USB crypto tokens via the standardized PKCS #11 interface.
2340 By default the OpenSC library from www.opensc.org is used
2341 but any other PKCS#11 library could be dynamically linked.
2342 strongSwan's PKCS#11 API was implemented by David Buechi
2343 and Michael Meier, both graduates of the Zurich University
2344 of Applied Sciences in Winterthur, Switzerland.
2346 - When a %trap eroute is triggered by an outgoing IP packet
2347 then the native IPsec stack of the Linux 2.6 kernel [often/
2348 always?] returns an XFRM_ACQUIRE message with an undefined
2349 protocol family field and the connection setup fails.
2350 As a workaround IPv4 (AF_INET) is now assumed.
2352 - the results of the UML test scenarios are now enhanced
2353 with block diagrams of the virtual network topology used
2354 in a particular test.
2360 - fixed IV used to decrypt informational messages.
2361 This bug was introduced with Mode Config functionality.
2363 - fixed NCP Vendor ID.
2365 - undid one of Ulrich Weber's maximum udp size patches
2366 because it caused a segmentation fault with NAT-ed
2369 - added UML scenarios wildcards and attr-cert which
2370 demonstrate the implementation of IPsec policies based
2371 on wildcard parameters contained in Distinguished Names and
2372 on X.509 attribute certificates, respectively.
2378 - Added basic Mode Config functionality
2380 - Added Mathieu Lafon's patch which upgrades the status of
2381 the NAT-Traversal implementation to RFC 3947.
2383 - The _startklips script now also loads the xfrm4_tunnel
2386 - Added Ulrich Weber's netlink replay window size and
2387 maximum udp size patches.
2389 - UML testing now uses the Linux 2.6.10 UML kernel by default.
2395 - Eric Marchionni and Patrik Rayo, both recent graduates from
2396 the Zuercher Hochschule Winterthur in Switzerland, created a
2397 User-Mode-Linux test setup for strongSwan. For more details
2398 please read the INSTALL and README documents in the testing
2401 - Full support of group attributes based on X.509 attribute
2402 certificates. Attribute certificates can be generated
2403 using the openac facility. For more details see
2407 The group attributes can be used in connection definitions
2408 in order to give IPsec access to specific user groups.
2409 This is done with the new parameter left|rightgroups as in
2411 rightgroups="Research, Sales"
2413 giving access to users possessing the group attributes
2414 Research or Sales, only.
2416 - In Quick Mode clients with subnet mask /32 are now
2417 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
2418 fix rekeying problems with the SafeNet/SoftRemote and NCP
2419 Secure Entry Clients.
2421 - Changed the defaults of the ikelifetime and keylife parameters
2422 to 3h and 1h, respectively. The maximum allowable values are
2423 now both set to 24 h.
2425 - Suppressed notification wars between two IPsec peers that
2426 could e.g. be triggered by incorrect ISAKMP encryption.
2428 - Public RSA keys can now have identical IDs if either the
2429 issuing CA or the serial number is different. The serial
2430 number of a certificate is now shown by the command
2432 ipsec auto --listpubkeys
2438 - Added Tuomo Soini's sourceip feature which allows a strongSwan
2439 roadwarrior to use a fixed Virtual IP (see README section 2.6)
2440 and reduces the well-known four tunnel case on VPN gateways to
2441 a single tunnel definition (see README section 2.4).
2443 - Fixed a bug occurring with NAT-Traversal enabled when the responder
2444 suddenly turns initiator and the initiator cannot find a matching
2445 connection because of the floated IKE port 4500.
2447 - Removed misleading ipsec verify command from barf.
2449 - Running under the native IP stack, ipsec --version now shows
2450 the Linux kernel version (courtesy to the Openswan project).
2456 - Introduced the ipsec auto --listalgs monitoring command which lists
2457 all currently registered IKE and ESP algorithms.
2459 - Fixed a bug in the ESP algorithm selection occurring when the strict flag
2460 is set and the first proposed transform does not match.
2462 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
2463 occurring when a smartcard is present.
2465 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
2467 - Fixed the printing of the notification names (null)
2469 - Applied another of Herbert Xu's Netlink patches.
2475 - Support of Dead Peer Detection. The connection parameter
2477 dpdaction=clear|hold
2479 activates DPD for the given connection.
2481 - The default Opportunistic Encryption (OE) policy groups are not
2482 automatically included anymore. Those wishing to activate OE can include
2483 the policy group with the following statement in ipsec.conf:
2485 include /etc/ipsec.d/examples/oe.conf
2487 The default for [right|left]rsasigkey is now set to %cert.
2489 - strongSwan now has a Vendor ID of its own which can be activated
2490 using the compile option VENDORID
2492 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
2494 - Applied Herbert Xu's patch fixing an ESPINUDP problem
2496 - Applied Herbert Xu's patch setting source/destination port numbers.
2498 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
2499 lost during the migration from SuperFreeS/WAN.
2501 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
2503 - Fixed the unsharing of alg parameters when instantiating group
2510 - Thomas Walpuski made me aware of a potential DoS attack via
2511 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
2512 certificates in Pluto's authority certificate store. This vulnerability
2513 was fixed by establishing trust in CA candidate certificates up to a
2514 trusted root CA prior to insertion into Pluto's chained list.
2516 - replaced the --assign option by the -v option in the auto awk script
2517 in order to make it run with mawk under debian/woody.
2523 - Split of the status information between ipsec auto --status (concise)
2524 and ipsec auto --statusall (verbose). Both commands can be used with
2525 an optional connection selector:
2527 ipsec auto --status[all] <connection_name>
2529 - Added the description of X.509 related features to the ipsec_auto(8)
2532 - Hardened the ASN.1 parser in debug mode, especially the printing
2533 of malformed distinguished names.
2535 - The size of an RSA public key received in a certificate is now restricted to
2537 512 bits <= modulus length <= 8192 bits.
2539 - Fixed the debug mode enumeration.
2545 - Fixed another PKCS#7 vulnerability which could lead to an
2546 endless loop while following the X.509 trust chain.
2552 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
2553 that accepted end certificates having identical issuer and subject
2554 distinguished names in a multi-tier X.509 trust chain.
2560 - Removed all remaining references to ipsec_netlink.h in KLIPS.
2566 - The new "ca" section allows to define the following parameters:
2569 cacert=koolCA.pem # cacert of kool CA
2570 ocspuri=http://ocsp.kool.net:8001 # ocsp server
2571 ldapserver=ldap.kool.net # default ldap server
2572 crluri=http://www.kool.net/kool.crl # crl distribution point
2573 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
2574 auto=add # add, ignore
2576 The ca definitions can be monitored via the command
2578 ipsec auto --listcainfos
2580 - Fixed cosmetic corruption of /proc filesystem by integrating
2581 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
2587 - Added support for the 818043 NAT-Traversal update of Microsoft's
2588 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
2590 - A symbolic link to libcrypto is now added in the kernel sources
2591 during kernel compilation
2593 - Fixed a couple of 64 bit issues (mostly casts to int).
2594 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
2596 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
2597 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
2598 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
2604 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
2605 certificate extension which contains no generalName item) can cause
2606 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
2607 been hardened to make it more robust against malformed ASN.1 objects.
2609 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
2610 Linux 2.6 IPsec stack.
2616 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12