4 - Extended PTS Attestation IMC/IMV pair to provide full evidence of
5 the Linux IMA measurement process. All pertinent file information
6 of a Linux OS can be collected an stored in an SQL database.
8 - The PA-TNC and PB-TNC protocols can now process huge data payloads
9 >64 kB by distributing PA-TNC attributes over multiple PA-TNC messages
10 and these messages over several PB-TNC batches. As long as no
11 consolidated recommandation from all IMVs can be obtained the TNC
12 server requests more client data by sending an empty SDATA batch.
14 - The rightgroups2 ipsec.conf option can require group membership during
15 a second authentication round, for example during XAuth authentication
16 against a RADIUS server.
18 - The xauth-pam backend can authenticate IKEv1 XAuth and Hybrid authenticated
19 clients against any PAM service. The IKEv2 eap-gtc plugin does not use
20 PAM directly anymore, but can use any XAuth backend to verify credentials,
23 - An EAP-Nak payload is returned by clients if the gateway requests an EAP
24 method that the client does not support. Clients can also request a specific
25 EAP method by configuring that method with leftauth.
27 - The eap-dynamic plugin handles EAP-Nak payloads returned by clients and uses
28 these to select a different EAP method supported/requested by the client.
29 The plugin initially requests the first registered method or the first method
30 configured with charon.plugins.eap-dynamic.preferred.
32 - The autotools build has been migrated to use a config.h header. strongSwan
33 development headers will get installed during "make install" if
34 --with-dev-headers has been passed to ./configure.
36 - All crypto primitives gained return values for most operations, allowing
37 crypto backends to fail, for example when using hardware accelerators.
42 - The charon IKE daemon gained experimental support for the IKEv1 protocol.
43 Pluto has been removed from the 5.x series, and unless strongSwan is
44 configured with --disable-ikev1 or --disable-ikev2, charon handles both
45 keying protocols. The feature-set of IKEv1 in charon is almost on par with
46 pluto, but currently does not support AH or bundled AH+ESP SAs. Beside
47 RSA/ECDSA, PSK and XAuth, charon also supports the Hybrid authentication
48 mode. Informations for interoperability and migration is available at
49 http://wiki.strongswan.org/projects/strongswan/wiki/CharonPlutoIKEv1.
51 - Charon's bus_t has been refactored so that loggers and other listeners are
52 now handled separately. The single lock was previously cause for deadlocks
53 if extensive listeners, such as the one provided by the updown plugin, wanted
54 to acquire locks that were held by other threads which in turn tried to log
55 messages, and thus were waiting to acquire the same lock currently held by
56 the thread calling the listener.
57 The implemented changes also allow the use of a read/write-lock for the
58 loggers which increases performance if multiple loggers are registered.
59 Besides several interface changes this last bit also changes the semantics
60 for loggers as these may now be called by multiple threads at the same time.
62 - Source routes are reinstalled if interfaces are reactivated or IP addresses
65 - The thread pool (processor_t) now has more control over the lifecycle of
66 a job (see job.h for details). In particular, it now controls the destruction
67 of jobs after execution and the cancellation of jobs during shutdown. Due to
68 these changes the requeueing feature, previously available to callback_job_t
69 only, is now available to all jobs (in addition to a new rescheduling
72 - In addition to trustchain key strength definitions for different public key
73 systems, the rightauth option now takes a list of signature hash algorithms
74 considered save for trustchain validation. For example, the setting
75 rightauth=rsa-2048-ecdsa-256-sha256-sha384-sha512 requires a trustchain
76 that uses at least RSA-2048 or ECDSA-256 keys and certificate signatures
77 using SHA-256 or better.
83 - Fixed a security vulnerability in the gmp plugin. If this plugin was used
84 for RSA signature verification an empty or zeroed signature was handled as
87 - Fixed several issues with reauthentication and address updates.
93 - The tnc-pdp plugin implements a RADIUS server interface allowing
94 a strongSwan TNC server to act as a Policy Decision Point.
96 - The eap-radius authentication backend enforces Session-Timeout attributes
97 using RFC4478 repeated authentication and acts upon RADIUS Dynamic
98 Authorization extensions, RFC 5176. Currently supported are disconnect
99 requests and CoA messages containing a Session-Timeout.
101 - The eap-radius plugin can forward arbitrary RADIUS attributes from and to
102 clients using custom IKEv2 notify payloads. The new radattr plugin reads
103 attributes to include from files and prints received attributes to the
106 - Added support for untruncated MD5 and SHA1 HMACs in ESP as used in
109 - The cmac plugin implements the AES-CMAC-96 and AES-CMAC-PRF-128 algorithms
110 as defined in RFC 4494 and RFC 4615, respectively.
112 - The resolve plugin automatically installs nameservers via resolvconf(8),
113 if it is installed, instead of modifying /etc/resolv.conf directly.
115 - The IKEv2 charon daemon supports now raw RSA public keys in RFC 3110
116 DNSKEY and PKCS#1 file format.
122 - Upgraded the TCG IF-IMC and IF-IMV C API to the upcoming version 1.3
123 which supports IF-TNCCS 2.0 long message types, the exclusive flags
124 and multiple IMC/IMV IDs. Both the TNC Client and Server as well as
125 the "Test", "Scanner", and "Attestation" IMC/IMV pairs were updated.
127 - Fully implemented the "TCG Attestation PTS Protocol: Binding to IF-M"
128 standard (TLV-based messages only). TPM-based remote attestation of
129 Linux IMA (Integrity Measurement Architecture) possible. Measurement
130 reference values are automatically stored in an SQLite database.
132 - The EAP-RADIUS authentication backend supports RADIUS accounting. It sends
133 start/stop messages containing Username, Framed-IP and Input/Output-Octets
134 attributes and has been tested against FreeRADIUS and Microsoft NPS.
136 - Added support for PKCS#8 encoded private keys via the libstrongswan
137 pkcs8 plugin. This is the default format used by some OpenSSL tools since
138 version 1.0.0 (e.g. openssl req with -keyout).
140 - Added session resumption support to the strongSwan TLS stack.
146 - Because of changing checksums before and after installation which caused
147 the integrity tests to fail we avoided directly linking libsimaka, libtls and
148 libtnccs to those libcharon plugins which make use of these dynamic libraries.
149 Instead we linked the libraries to the charon daemon. Unfortunately Ubuntu
150 11.10 activated the --as-needed ld option which discards explicit links
151 to dynamic libraries that are not actually used by the charon daemon itself,
152 thus causing failures during the loading of the plugins which depend on these
153 libraries for resolving external symbols.
155 - Therefore our approach of computing integrity checksums for plugins had to be
156 changed radically by moving the hash generation from the compilation to the
157 post-installation phase.
163 - The new libstrongswan certexpire plugin collects expiration information of
164 all used certificates and exports them to CSV files. It either directly
165 exports them or uses cron style scheduling for batch exports.
167 - starter passes unresolved hostnames to charon, allowing it to do name
168 resolution not before the connection attempt. This is especially useful with
169 connections between hosts using dynamic IP addresses. Thanks to Mirko Parthey
170 for the initial patch.
172 - The android plugin can now be used without the Android frontend patch and
173 provides DNS server registration and logging to logcat.
175 - Pluto and starter (plus stroke and whack) have been ported to Android.
177 - Support for ECDSA private and public key operations has been added to the
178 pkcs11 plugin. The plugin now also provides DH and ECDH via PKCS#11 and can
179 use tokens as random number generators (RNG). By default only private key
180 operations are enabled, more advanced features have to be enabled by their
181 option in strongswan.conf. This also applies to public key operations (even
182 for keys not stored on the token) which were enabled by default before.
184 - The libstrongswan plugin system now supports detailed plugin dependencies.
185 Many plugins have been extended to export its capabilities and requirements.
186 This allows the plugin loader to resolve plugin loading order automatically,
187 and in future releases, to dynamically load the required features on demand.
188 Existing third party plugins are source (but not binary) compatible if they
189 properly initialize the new get_features() plugin function to NULL.
191 - The tnc-ifmap plugin implements a TNC IF-MAP 2.0 client which can deliver
192 metadata about IKE_SAs via a SOAP interface to a MAP server. The tnc-ifmap
193 plugin requires the Apache Axis2/C library.
199 - Our private libraries (e.g. libstrongswan) are not installed directly in
200 prefix/lib anymore. Instead a subdirectory is used (prefix/lib/ipsec/ by
201 default). The plugins directory is also moved from libexec/ipsec/ to that
204 - The dynamic IMC/IMV libraries were moved from the plugins directory to
205 a new imcvs directory in the prefix/lib/ipsec/ subdirectory.
207 - Job priorities were introduced to prevent thread starvation caused by too
208 many threads handling blocking operations (such as CRL fetching). Refer to
209 strongswan.conf(5) for details.
211 - Two new strongswan.conf options allow to fine-tune performance on IKEv2
212 gateways by dropping IKE_SA_INIT requests on high load.
214 - IKEv2 charon daemon supports start PASS and DROP shunt policies
215 preventing traffic to go through IPsec connections. Installation of the
216 shunt policies either via the XFRM netfilter or PFKEYv2 IPsec kernel
219 - The history of policies installed in the kernel is now tracked so that e.g.
220 trap policies are correctly updated when reauthenticated SAs are terminated.
222 - IMC/IMV Scanner pair implementing the RFC 5792 PA-TNC (IF-M) protocol.
223 Using "netstat -l" the IMC scans open listening ports on the TNC client
224 and sends a port list to the IMV which based on a port policy decides if
225 the client is admitted to the network.
226 (--enable-imc-scanner/--enable-imv-scanner).
228 - IMC/IMV Test pair implementing the RFC 5792 PA-TNC (IF-M) protocol.
229 (--enable-imc-test/--enable-imv-test).
231 - The IKEv2 close action does not use the same value as the ipsec.conf dpdaction
232 setting, but the value defined by its own closeaction keyword. The action
233 is triggered if the remote peer closes a CHILD_SA unexpectedly.
239 - The whitelist plugin for the IKEv2 daemon maintains an in-memory identity
240 whitelist. Any connection attempt of peers not whitelisted will get rejected.
241 The 'ipsec whitelist' utility provides a simple command line frontend for
242 whitelist administration.
244 - The duplicheck plugin provides a specialized form of duplicate checking,
245 doing a liveness check on the old SA and optionally notify a third party
246 application about detected duplicates.
248 - The coupling plugin permanently couples two or more devices by limiting
249 authentication to previously used certificates.
251 - In the case that the peer config and child config don't have the same name
252 (usually in SQL database defined connections), ipsec up|route <peer config>
253 starts|routes all associated child configs and ipsec up|route <child config>
254 only starts|routes the specific child config.
256 - fixed the encoding and parsing of X.509 certificate policy statements (CPS).
258 - Duncan Salerno contributed the eap-sim-pcsc plugin implementing a
259 pcsc-lite based SIM card backend.
261 - The eap-peap plugin implements the EAP PEAP protocol. Interoperates
262 successfully with a FreeRADIUS server and Windows 7 Agile VPN clients.
264 - The IKEv2 daemon charon rereads strongswan.conf on SIGHUP and instructs
265 all plugins to reload. Currently only the eap-radius and the attr plugins
266 support configuration reloading.
268 - Added userland support to the IKEv2 daemon for Extended Sequence Numbers
269 support coming with Linux 2.6.39. To enable ESN on a connection, add
270 the 'esn' keyword to the proposal. The default proposal uses 32-bit sequence
271 numbers only ('noesn'), and the same value is used if no ESN mode is
272 specified. To negotiate ESN support with the peer, include both, e.g.
273 esp=aes128-sha1-esn-noesn.
275 - In addition to ESN, Linux 2.6.39 gained support for replay windows larger
276 than 32 packets. The new global strongswan.conf option 'charon.replay_window'
277 configures the size of the replay window, in packets.
283 - Sansar Choinyambuu implemented the RFC 5793 Posture Broker Protocol (BP)
284 compatible with Trusted Network Connect (TNC). The TNCCS 2.0 protocol
285 requires the tnccs_20, tnc_imc and tnc_imv plugins but does not depend
286 on the libtnc library. Any available IMV/IMC pairs conforming to the
287 Trusted Computing Group's TNC-IF-IMV/IMC 1.2 interface specification
288 can be loaded via /etc/tnc_config.
290 - Re-implemented the TNCCS 1.1 protocol by using the tnc_imc and tnc_imv
291 in place of the external libtnc library.
293 - The tnccs_dynamic plugin loaded on a TNC server in addition to the
294 tnccs_11 and tnccs_20 plugins, dynamically detects the IF-TNCCS
295 protocol version used by a TNC client and invokes an instance of
296 the corresponding protocol stack.
298 - IKE and ESP proposals can now be stored in an SQL database using a
299 new proposals table. The start_action field in the child_configs
300 tables allows the automatic starting or routing of connections stored
303 - The new certificate_authorities and certificate_distribution_points
304 tables make it possible to store CRL and OCSP Certificate Distribution
305 points in an SQL database.
307 - The new 'include' statement allows to recursively include other files in
308 strongswan.conf. Existing sections and values are thereby extended and
309 replaced, respectively.
311 - Due to the changes in the parser for strongswan.conf, the configuration
312 syntax for the attr plugin has changed. Previously, it was possible to
313 specify multiple values of a specific attribute type by adding multiple
314 key/value pairs with the same key (e.g. dns) to the plugins.attr section.
315 Because values with the same key now replace previously defined values
316 this is not possible anymore. As an alternative, multiple values can be
317 specified by separating them with a comma (e.g. dns = 1.2.3.4, 2.3.4.5).
319 - ipsec listalgs now appends (set in square brackets) to each crypto
320 algorithm listed the plugin that registered the function.
322 - Traffic Flow Confidentiality padding supported with Linux 2.6.38 can be used
323 by the IKEv2 daemon. The ipsec.conf 'tfc' keyword pads all packets to a given
324 boundary, the special value '%mtu' pads all packets to the path MTU.
326 - The new af-alg plugin can use various crypto primitives of the Linux Crypto
327 API using the AF_ALG interface introduced with 2.6.38. This removes the need
328 for additional userland implementations of symmetric cipher, hash, hmac and
331 - The IKEv2 daemon supports the INITIAL_CONTACT notify as initiator and
332 responder. The notify is sent when initiating configurations with a unique
333 policy, set in ipsec.conf via the global 'uniqueids' option.
335 - The conftest conformance testing framework enables the IKEv2 stack to perform
336 many tests using a distinct tool and configuration frontend. Various hooks
337 can alter reserved bits, flags, add custom notifies and proposals, reorder
338 or drop messages and much more. It is enabled using the --enable-conftest
341 - The new libstrongswan constraints plugin provides advanced X.509 constraint
342 checking. In additon to X.509 pathLen constraints, the plugin checks for
343 nameConstraints and certificatePolicies, including policyMappings and
344 policyConstraints. The x509 certificate plugin and the pki tool have been
345 enhanced to support these extensions. The new left/rightcertpolicy ipsec.conf
346 connection keywords take OIDs a peer certificate must have.
348 - The left/rightauth ipsec.conf keywords accept values with a minimum strength
349 for trustchain public keys in bits, such as rsa-2048 or ecdsa-256.
351 - The revocation and x509 libstrongswan plugins and the pki tool gained basic
352 support for delta CRLs.
358 - IMPORTANT: the default keyexchange mode 'ike' is changing with release 4.5
359 from 'ikev1' to 'ikev2', thus commemorating the five year anniversary of the
360 IKEv2 RFC 4306 and its mature successor RFC 5996. The time has definitively
361 come for IKEv1 to go into retirement and to cede its place to the much more
362 robust, powerful and versatile IKEv2 protocol!
364 - Added new ctr, ccm and gcm plugins providing Counter, Counter with CBC-MAC
365 and Galois/Counter Modes based on existing CBC implementations. These
366 new plugins bring support for AES and Camellia Counter and CCM algorithms
367 and the AES GCM algorithms for use in IKEv2.
369 - The new pkcs11 plugin brings full Smartcard support to the IKEv2 daemon and
370 the pki utility using one or more PKCS#11 libraries. It currently supports
371 RSA private and public key operations and loads X.509 certificates from
374 - Implemented a general purpose TLS stack based on crypto and credential
375 primitives of libstrongswan. libtls supports TLS versions 1.0, 1.1 and 1.2,
376 ECDHE-ECDSA/RSA, DHE-RSA and RSA key exchange algorithms and RSA/ECDSA based
377 client authentication.
379 - Based on libtls, the eap-tls plugin brings certificate based EAP
380 authentication for client and server. It is compatible to Windows 7 IKEv2
381 Smartcard authentication and the OpenSSL based FreeRADIUS EAP-TLS backend.
383 - Implemented the TNCCS 1.1 Trusted Network Connect protocol using the
384 libtnc library on the strongSwan client and server side via the tnccs_11
385 plugin and optionally connecting to a TNC@FHH-enhanced FreeRADIUS AAA server.
386 Depending on the resulting TNC Recommendation, strongSwan clients are granted
387 access to a network behind a strongSwan gateway (allow), are put into a
388 remediation zone (isolate) or are blocked (none), respectively. Any number
389 of Integrity Measurement Collector/Verifier pairs can be attached
390 via the tnc-imc and tnc-imv charon plugins.
392 - The IKEv1 daemon pluto now uses the same kernel interfaces as the IKEv2
393 daemon charon. As a result of this, pluto now supports xfrm marks which
394 were introduced in charon with 4.4.1.
396 - Applets for Maemo 5 (Nokia) allow to easily configure and control IKEv2
397 based VPN connections with EAP authentication on supported devices.
399 - The RADIUS plugin eap-radius now supports multiple RADIUS servers for
400 redundant setups. Servers are selected by a defined priority, server load and
403 - The simple led plugin controls hardware LEDs through the Linux LED subsystem.
404 It currently shows activity of the IKE daemon and is a good example how to
405 implement a simple event listener.
407 - Improved MOBIKE behavior in several corner cases, for instance, if the
408 initial responder moves to a different address.
410 - Fixed left-/rightnexthop option, which was broken since 4.4.0.
412 - Fixed a bug not releasing a virtual IP address to a pool if the XAUTH
413 identity was different from the IKE identity.
415 - Fixed the alignment of ModeConfig messages on 4-byte boundaries in the
416 case where the attributes are not a multiple of 4 bytes (e.g. Cisco's
419 - Fixed the interoperability of the socket_raw and socket_default
422 - Added man page for strongswan.conf
428 - Support of xfrm marks in IPsec SAs and IPsec policies introduced
429 with the Linux 2.6.34 kernel. For details see the example scenarios
430 ikev2/nat-two-rw-mark, ikev2/rw-nat-mark-in-out and ikev2/net2net-psk-dscp.
432 - The PLUTO_MARK_IN and PLUTO_ESP_ENC environment variables can be used
433 in a user-specific updown script to set marks on inbound ESP or
436 - The openssl plugin now supports X.509 certificate and CRL functions.
438 - OCSP/CRL checking in IKEv2 has been moved to the revocation plugin, enabled
439 by default. Plase update manual load directives in strongswan.conf.
441 - RFC3779 ipAddrBlock constraint checking has been moved to the addrblock
442 plugin, disabled by default. Enable it and update manual load directives
443 in strongswan.conf, if required.
445 - The pki utility supports CRL generation using the --signcrl command.
447 - The ipsec pki --self, --issue and --req commands now support output in
448 PEM format using the --outform pem option.
450 - The major refactoring of the IKEv1 Mode Config functionality now allows
451 the transport and handling of any Mode Config attribute.
453 - The RADIUS proxy plugin eap-radius now supports multiple servers. Configured
454 servers are chosen randomly, with the option to prefer a specific server.
455 Non-responding servers are degraded by the selection process.
457 - The ipsec pool tool manages arbitrary configuration attributes stored
458 in an SQL database. ipsec pool --help gives the details.
460 - The new eap-simaka-sql plugin acts as a backend for EAP-SIM and EAP-AKA,
461 reading triplets/quintuplets from an SQL database.
463 - The High Availability plugin now supports a HA enabled in-memory address
464 pool and Node reintegration without IKE_SA rekeying. The latter allows
465 clients without IKE_SA rekeying support to keep connected during
466 reintegration. Additionally, many other issues have been fixed in the ha
469 - Fixed a potential remote code execution vulnerability resulting from
470 the misuse of snprintf(). The vulnerability is exploitable by
471 unauthenticated users.
477 - The IKEv2 High Availability plugin has been integrated. It provides
478 load sharing and failover capabilities in a cluster of currently two nodes,
479 based on an extend ClusterIP kernel module. More information is available at
480 http://wiki.strongswan.org/projects/strongswan/wiki/HighAvailability.
481 The development of the High Availability functionality was sponsored by
482 secunet Security Networks AG.
484 - Added IKEv1 and IKEv2 configuration support for the AES-GMAC
485 authentication-only ESP cipher. Our aes_gmac kernel patch or a Linux
486 2.6.34 kernel is required to make AES-GMAC available via the XFRM
489 - Added support for Diffie-Hellman groups 22, 23 and 24 to the gmp, gcrypt
490 and openssl plugins, usable by both pluto and charon. The new proposal
491 keywords are modp1024s160, modp2048s224 and modp2048s256. Thanks to Joy Latten
492 from IBM for his contribution.
494 - The IKEv1 pluto daemon supports RAM-based virtual IP pools using
495 the rightsourceip directive with a subnet from which addresses
498 - The ipsec pki --gen and --pub commands now allow the output of
499 private and public keys in PEM format using the --outform pem
502 - The new DHCP plugin queries virtual IP addresses for clients from a DHCP
503 server using broadcasts, or a defined server using the
504 charon.plugins.dhcp.server strongswan.conf option. DNS/WINS server information
505 is additionally served to clients if the DHCP server provides such
506 information. The plugin is used in ipsec.conf configurations having
507 rightsourceip set to %dhcp.
509 - A new plugin called farp fakes ARP responses for virtual IP addresses
510 handed out to clients from the IKEv2 daemon charon. The plugin lets a
511 road-warrior act as a client on the local LAN if it uses a virtual IP
512 from the responders subnet, e.g. acquired using the DHCP plugin.
514 - The existing IKEv2 socket implementations have been migrated to the
515 socket-default and the socket-raw plugins. The new socket-dynamic plugin
516 binds sockets dynamically to ports configured via the left-/rightikeport
517 ipsec.conf connection parameters.
519 - The android charon plugin stores received DNS server information as "net.dns"
520 system properties, as used by the Android platform.
526 - The IKEv2 daemon supports RFC 3779 IP address block constraints
527 carried as a critical X.509v3 extension in the peer certificate.
529 - The ipsec pool --add|del dns|nbns command manages DNS and NBNS name
530 server entries that are sent via the IKEv1 Mode Config or IKEv2
531 Configuration Payload to remote clients.
533 - The Camellia cipher can be used as an IKEv1 encryption algorithm.
535 - The IKEv1 and IKEV2 daemons now check certificate path length constraints.
537 - The new ipsec.conf conn option "inactivity" closes a CHILD_SA if no traffic
538 was sent or received within the given interval. To close the complete IKE_SA
539 if its only CHILD_SA was inactive, set the global strongswan.conf option
540 "charon.inactivity_close_ike" to yes.
542 - More detailed IKEv2 EAP payload information in debug output
544 - IKEv2 EAP-SIM and EAP-AKA share joint libsimaka library
546 - Added required userland changes for proper SHA256 and SHA384/512 in ESP that
547 will be introduced with Linux 2.6.33. The "sha256"/"sha2_256" keyword now
548 configures the kernel with 128 bit truncation, not the non-standard 96
549 bit truncation used by previous releases. To use the old 96 bit truncation
550 scheme, the new "sha256_96" proposal keyword has been introduced.
552 - Fixed IPComp in tunnel mode, stripping out the duplicated outer header. This
553 change makes IPcomp tunnel mode connections incompatible with previous
554 releases; disable compression on such tunnels.
556 - Fixed BEET mode connections on recent kernels by installing SAs with
557 appropriate traffic selectors, based on a patch by Michael Rossberg.
559 - Using extensions (such as BEET mode) and crypto algorithms (such as twofish,
560 serpent, sha256_96) allocated in the private use space now require that we
561 know its meaning, i.e. we are talking to strongSwan. Use the new
562 "charon.send_vendor_id" option in strongswan.conf to let the remote peer know
565 - Experimental support for draft-eronen-ipsec-ikev2-eap-auth, where the
566 responder omits public key authentication in favor of a mutual authentication
567 method. To enable EAP-only authentication, set rightauth=eap on the responder
568 to rely only on the MSK constructed AUTH payload. This not-yet standardized
569 extension requires the strongSwan vendor ID introduced above.
571 - The IKEv1 daemon ignores the Juniper SRX notification type 40001, thus
572 allowing interoperability.
578 - The IKEv1 pluto daemon can now use SQL-based address pools to deal out
579 virtual IP addresses as a Mode Config server. The pool capability has been
580 migrated from charon's sql plugin to a new attr-sql plugin which is loaded
581 by libstrongswan and which can be used by both daemons either with a SQLite
582 or MySQL database and the corresponding plugin.
584 - Plugin names have been streamlined: EAP plugins now have a dash after eap
585 (e.g. eap-sim), as it is used with the --enable-eap-sim ./configure option.
586 Plugin configuration sections in strongswan.conf now use the same name as the
587 plugin itself (i.e. with a dash). Make sure to update "load" directives and
588 the affected plugin sections in existing strongswan.conf files.
590 - The private/public key parsing and encoding has been split up into
591 separate pkcs1, pgp, pem and dnskey plugins. The public key implementation
592 plugins gmp, gcrypt and openssl can all make use of them.
594 - The EAP-AKA plugin can use different backends for USIM/quintuplet
595 calculations, very similar to the EAP-SIM plugin. The existing 3GPP2 software
596 implementation has been migrated to a separate plugin.
598 - The IKEv2 daemon charon gained basic PGP support. It can use locally installed
599 peer certificates and can issue signatures based on RSA private keys.
601 - The new 'ipsec pki' tool provides a set of commands to maintain a public
602 key infrastructure. It currently supports operations to create RSA and ECDSA
603 private/public keys, calculate fingerprints and issue or verify certificates.
605 - Charon uses a monotonic time source for statistics and job queueing, behaving
606 correctly if the system time changes (e.g. when using NTP).
608 - In addition to time based rekeying, charon supports IPsec SA lifetimes based
609 on processed volume or number of packets. They new ipsec.conf paramaters
610 'lifetime' (an alias to 'keylife'), 'lifebytes' and 'lifepackets' handle
611 SA timeouts, while the parameters 'margintime' (an alias to rekeymargin),
612 'marginbytes' and 'marginpackets' trigger the rekeying before a SA expires.
613 The existing parameter 'rekeyfuzz' affects all margins.
615 - If no CA/Gateway certificate is specified in the NetworkManager plugin,
616 charon uses a set of trusted root certificates preinstalled by distributions.
617 The directory containing CA certificates can be specified using the
618 --with-nm-ca-dir=path configure option.
620 - Fixed the encoding of the Email relative distinguished name in left|rightid
623 - Fixed the broken parsing of PKCS#7 wrapped certificates by the pluto daemon.
625 - Fixed smartcard-based authentication in the pluto daemon which was broken by
626 the ECDSA support introduced with the 4.3.2 release.
628 - A patch contributed by Heiko Hund fixes mixed IPv6 in IPv4 and vice versa
629 tunnels established with the IKEv1 pluto daemon.
631 - The pluto daemon now uses the libstrongswan x509 plugin for certificates and
632 CRls and the struct id type was replaced by identification_t used by charon
633 and the libstrongswan library.
639 - IKEv2 charon daemon ported to FreeBSD and Mac OS X. Installation details can
640 be found on wiki.strongswan.org.
642 - ipsec statusall shows the number of bytes transmitted and received over
643 ESP connections configured by the IKEv2 charon daemon.
645 - The IKEv2 charon daemon supports include files in ipsec.secrets.
651 - The configuration option --enable-integrity-test plus the strongswan.conf
652 option libstrongswan.integrity_test = yes activate integrity tests
653 of the IKE daemons charon and pluto, libstrongswan and all loaded
654 plugins. Thus dynamic library misconfigurations and non-malicious file
655 manipulations can be reliably detected.
657 - The new default setting libstrongswan.ecp_x_coordinate_only=yes allows
658 IKEv1 interoperability with MS Windows using the ECP DH groups 19 and 20.
660 - The IKEv1 pluto daemon now supports the AES-CCM and AES-GCM ESP
661 authenticated encryption algorithms.
663 - The IKEv1 pluto daemon now supports V4 OpenPGP keys.
665 - The RDN parser vulnerability discovered by Orange Labs research team
666 was not completely fixed in version 4.3.2. Some more modifications
667 had to be applied to the asn1_length() function to make it robust.
673 - The new gcrypt plugin provides symmetric cipher, hasher, RNG, Diffie-Hellman
674 and RSA crypto primitives using the LGPL licensed GNU gcrypt library.
676 - libstrongswan features an integrated crypto selftest framework for registered
677 algorithms. The test-vector plugin provides a first set of test vectors and
678 allows pluto and charon to rely on tested crypto algorithms.
680 - pluto can now use all libstrongswan plugins with the exception of x509 and xcbc.
681 Thanks to the openssl plugin, the ECP Diffie-Hellman groups 19, 20, 21, 25, and
682 26 as well as ECDSA-256, ECDSA-384, and ECDSA-521 authentication can be used
685 - Applying their fuzzing tool, the Orange Labs vulnerability research team found
686 another two DoS vulnerabilities, one in the rather old ASN.1 parser of Relative
687 Distinguished Names (RDNs) and a second one in the conversion of ASN.1 UTCTIME
688 and GENERALIZEDTIME strings to a time_t value.
694 - The nm plugin now passes DNS/NBNS server information to NetworkManager,
695 allowing a gateway administrator to set DNS/NBNS configuration on clients
698 - The nm plugin also accepts CA certificates for gateway authentication. If
699 a CA certificate is configured, strongSwan uses the entered gateway address
700 as its idenitity, requiring the gateways certificate to contain the same as
701 subjectAltName. This allows a gateway administrator to deploy the same
702 certificates to Windows 7 and NetworkManager clients.
704 - The command ipsec purgeike deletes IKEv2 SAs that don't have a CHILD SA.
705 The command ipsec down <conn>{n} deletes CHILD SA instance n of connection
706 <conn> whereas ipsec down <conn>{*} deletes all CHILD SA instances.
707 The command ipsec down <conn>[n] deletes IKE SA instance n of connection
708 <conn> plus dependent CHILD SAs whereas ipsec down <conn>[*] deletes all
709 IKE SA instances of connection <conn>.
711 - Fixed a regression introduced in 4.3.0 where EAP authentication calculated
712 the AUTH payload incorrectly. Further, the EAP-MSCHAPv2 MSK key derivation
713 has been updated to be compatible with the Windows 7 Release Candidate.
715 - Refactored installation of triggering policies. Routed policies are handled
716 outside of IKE_SAs to keep them installed in any case. A tunnel gets
717 established only once, even if initiation is delayed due network outages.
719 - Improved the handling of multiple acquire signals triggered by the kernel.
721 - Fixed two DoS vulnerabilities in the charon daemon that were discovered by
722 fuzzing techniques: 1) Sending a malformed IKE_SA_INIT request leaved an
723 incomplete state which caused a null pointer dereference if a subsequent
724 CREATE_CHILD_SA request was sent. 2) Sending an IKE_AUTH request with either
725 a missing TSi or TSr payload caused a null pointer derefence because the
726 checks for TSi and TSr were interchanged. The IKEv2 fuzzer used was
727 developed by the Orange Labs vulnerability research team. The tool was
728 initially written by Gabriel Campana and is now maintained by Laurent Butti.
730 - Added support for AES counter mode in ESP in IKEv2 using the proposal
731 keywords aes128ctr, aes192ctr and aes256ctr.
733 - Further progress in refactoring pluto: Use of the curl and ldap plugins
734 for fetching crls and OCSP. Use of the random plugin to get keying material
735 from /dev/random or /dev/urandom. Use of the openssl plugin as an alternative
736 to the aes, des, sha1, sha2, and md5 plugins. The blowfish, twofish, and
737 serpent encryption plugins are now optional and are not enabled by default.
743 - Support for the IKEv2 Multiple Authentication Exchanges extension (RFC4739).
744 Initiators and responders can use several authentication rounds (e.g. RSA
745 followed by EAP) to authenticate. The new ipsec.conf leftauth/rightauth and
746 leftauth2/rightauth2 parameters define own authentication rounds or setup
747 constraints for the remote peer. See the ipsec.conf man page for more detials.
749 - If glibc printf hooks (register_printf_function) are not available,
750 strongSwan can use the vstr string library to run on non-glibc systems.
752 - The IKEv2 charon daemon can now configure the ESP CAMELLIA-CBC cipher
753 (esp=camellia128|192|256).
755 - Refactored the pluto and scepclient code to use basic functions (memory
756 allocation, leak detective, chunk handling, printf_hooks, strongswan.conf
757 attributes, ASN.1 parser, etc.) from the libstrongswan library.
759 - Up to two DNS and WINS servers to be sent via IKEv1 ModeConfig can be
760 configured in the pluto section of strongswan.conf.
766 - The new server-side EAP RADIUS plugin (--enable-eap-radius)
767 relays EAP messages to and from a RADIUS server. Successfully
768 tested with with a freeradius server using EAP-MD5 and EAP-SIM.
770 - A vulnerability in the Dead Peer Detection (RFC 3706) code was found by
771 Gerd v. Egidy <gerd.von.egidy@intra2net.com> of Intra2net AG affecting
772 all Openswan and strongSwan releases. A malicious (or expired ISAKMP)
773 R_U_THERE or R_U_THERE_ACK Dead Peer Detection packet can cause the
774 pluto IKE daemon to crash and restart. No authentication or encryption
775 is required to trigger this bug. One spoofed UDP packet can cause the
776 pluto IKE daemon to restart and be unresponsive for a few seconds while
777 restarting. This DPD null state vulnerability has been officially
778 registered as CVE-2009-0790 and is fixed by this release.
780 - ASN.1 to time_t conversion caused a time wrap-around for
781 dates after Jan 18 03:14:07 UTC 2038 on 32-bit platforms.
782 As a workaround such dates are set to the maximum representable
783 time, i.e. Jan 19 03:14:07 UTC 2038.
785 - Distinguished Names containing wildcards (*) are not sent in the
792 - Fixed a use-after-free bug in the DPD timeout section of the
793 IKEv1 pluto daemon which sporadically caused a segfault.
795 - Fixed a crash in the IKEv2 charon daemon occurring with
796 mixed RAM-based and SQL-based virtual IP address pools.
798 - Fixed ASN.1 parsing of algorithmIdentifier objects where the
799 parameters field is optional.
801 - Ported nm plugin to NetworkManager 7.1.
807 - Support of the EAP-MSCHAPv2 protocol enabled by the option
808 --enable-eap-mschapv2. Requires the MD4 hash algorithm enabled
809 either by --enable-md4 or --enable-openssl.
811 - Assignment of up to two DNS and up to two WINS servers to peers via
812 the IKEv2 Configuration Payload (CP). The IPv4 or IPv6 nameserver
813 addresses are defined in strongswan.conf.
815 - The strongSwan applet for the Gnome NetworkManager is now built and
816 distributed as a separate tarball under the name NetworkManager-strongswan.
822 - Fixed ESP NULL encryption broken by the refactoring of keymat.c.
823 Also introduced proper initialization and disposal of keying material.
825 - Fixed the missing listing of connection definitions in ipsec statusall
826 broken by an unfortunate local variable overload.
832 - Several performance improvements to handle thousands of tunnels with almost
833 linear upscaling. All relevant data structures have been replaced by faster
834 counterparts with better lookup times.
836 - Better parallelization to run charon on multiple cores. Due to improved
837 ressource locking and other optimizations the daemon can take full
838 advantage of 16 or even more cores.
840 - The load-tester plugin can use a NULL Diffie-Hellman group and simulate
841 unique identities and certificates by signing peer certificates using a CA
844 - The redesigned stroke in-memory IP pool handles leases. The "ipsec leases"
845 command queries assigned leases.
847 - Added support for smartcards in charon by using the ENGINE API provided by
848 OpenSSL, based on patches by Michael Roßberg.
850 - The Padlock plugin supports the hardware RNG found on VIA CPUs to provide a
851 reliable source of randomness.
856 - Flexible configuration of logging subsystem allowing to log to multiple
857 syslog facilities or to files using fine-grained log levels for each target.
859 - Load testing plugin to do stress testing of the IKEv2 daemon against self
860 or another host. Found and fixed issues during tests in the multi-threaded
861 use of the OpenSSL plugin.
863 - Added profiling code to synchronization primitives to find bottlenecks if
864 running on multiple cores. Found and fixed an issue where parts of the
865 Diffie-Hellman calculation acquired an exclusive lock. This greatly improves
866 parallelization to multiple cores.
868 - updown script invocation has been separated into a plugin of its own to
869 further slim down the daemon core.
871 - Separated IKE_SA/CHILD_SA key derivation process into a closed system,
872 allowing future implementations to use a secured environment in e.g. kernel
875 - The kernel interface of charon has been modularized. XFRM NETLINK (default)
876 and PFKEY (--enable-kernel-pfkey) interface plugins for the native IPsec
877 stack of the Linux 2.6 kernel as well as a PFKEY interface for the KLIPS
878 IPsec stack (--enable-kernel-klips) are provided.
880 - Basic Mobile IPv6 support has been introduced, securing Binding Update
881 messages as well as tunneled traffic between Mobile Node and Home Agent.
882 The installpolicy=no option allows peaceful cooperation with a dominant
883 mip6d daemon and the new type=transport_proxy implements the special MIPv6
884 IPsec transport proxy mode where the IKEv2 daemon uses the Care-of-Address
885 but the IPsec SA is set up for the Home Address.
887 - Implemented migration of Mobile IPv6 connections using the KMADDRESS
888 field contained in XFRM_MSG_MIGRATE messages sent by the mip6d daemon
889 via the Linux 2.6.28 (or appropriately patched) kernel.
895 - IKEv2 charon daemon supports authentication based on raw public keys
896 stored in the SQL database backend. The ipsec listpubkeys command
897 lists the available raw public keys via the stroke interface.
899 - Several MOBIKE improvements: Detect changes in NAT mappings in DPD exchanges,
900 handle events if kernel detects NAT mapping changes in UDP-encapsulated
901 ESP packets (requires kernel patch), reuse old addesses in MOBIKE updates as
902 long as possible and other fixes.
904 - Fixed a bug in addr_in_subnet() which caused insertion of wrong source
905 routes for destination subnets having netwmasks not being a multiple of 8 bits.
906 Thanks go to Wolfgang Steudel, TU Ilmenau for reporting this bug.
912 - Fixed a Denial-of-Service vulnerability where an IKE_SA_INIT message with
913 a KE payload containing zeroes only can cause a crash of the IKEv2 charon
914 daemon due to a NULL pointer returned by the mpz_export() function of the
915 GNU Multiprecision Library (GMP). Thanks go to Mu Dynamics Research Labs
916 for making us aware of this problem.
918 - The new agent plugin provides a private key implementation on top of an
921 - The NetworkManager plugin has been extended to support certificate client
922 authentication using RSA keys loaded from a file or using ssh-agent.
924 - Daemon capability dropping has been ported to libcap and must be enabled
925 explicitly --with-capabilities=libcap. Future version will support the
926 newer libcap2 library.
928 - ipsec listalgs lists the IKEv2 cryptografic algorithms registered with the
929 charon keying daemon.
935 - A NetworkManager plugin allows GUI-based configuration of road-warrior
936 clients in a simple way. It features X509 based gateway authentication
937 and EAP client authentication, tunnel setup/teardown and storing passwords
938 in the Gnome Keyring.
940 - A new EAP-GTC plugin implements draft-sheffer-ikev2-gtc-00.txt and allows
941 username/password authentication against any PAM service on the gateway.
942 The new EAP method interacts nicely with the NetworkManager plugin and allows
943 client authentication against e.g. LDAP.
945 - Improved support for the EAP-Identity method. The new ipsec.conf eap_identity
946 parameter defines an additional identity to pass to the server in EAP
949 - The "ipsec statusall" command now lists CA restrictions, EAP
950 authentication types and EAP identities.
952 - Fixed two multithreading deadlocks occurring when starting up
953 several hundred tunnels concurrently.
955 - Fixed the --enable-integrity-test configure option which
956 computes a SHA-1 checksum over the libstrongswan library.
962 - Consistent logging of IKE and CHILD SAs at the audit (AUD) level.
964 - Improved the performance of the SQL-based virtual IP address pool
965 by introducing an additional addresses table. The leases table
966 storing only history information has become optional and can be
967 disabled by setting charon.plugins.sql.lease_history = no in
970 - The XFRM_STATE_AF_UNSPEC flag added to xfrm.h allows IPv4-over-IPv6
971 and IPv6-over-IPv4 tunnels with the 2.6.26 and later Linux kernels.
973 - management of different virtual IP pools for different
974 network interfaces have become possible.
976 - fixed a bug which prevented the assignment of more than 256
977 virtual IP addresses from a pool managed by an sql database.
979 - fixed a bug which did not delete own IPCOMP SAs in the kernel.
985 - Added statistics functions to ipsec pool --status and ipsec pool --leases
986 and input validation checks to various ipsec pool commands.
988 - ipsec statusall now lists all loaded charon plugins and displays
989 the negotiated IKEv2 cipher suite proposals.
991 - The openssl plugin supports the elliptic curve Diffie-Hellman groups
992 19, 20, 21, 25, and 26.
994 - The openssl plugin supports ECDSA authentication using elliptic curve
997 - Fixed a bug in stroke which caused multiple charon threads to close
998 the file descriptors during packet transfers over the stroke socket.
1000 - ESP sequence numbers are now migrated in IPsec SA updates handled by
1001 MOBIKE. Works only with Linux kernels >= 2.6.17.
1007 - Fixed the strongswan.conf path configuration problem that occurred when
1008 --sysconfig was not set explicitly in ./configure.
1010 - Fixed a number of minor bugs that where discovered during the 4th
1011 IKEv2 interoperability workshop in San Antonio, TX.
1017 - Plugins for libstrongswan and charon can optionally be loaded according
1018 to a configuration in strongswan.conf. Most components provide a
1019 "load = " option followed by a space separated list of plugins to load.
1020 This allows e.g. the fallback from a hardware crypto accelerator to
1021 to software-based crypto plugins.
1023 - Charons SQL plugin has been extended by a virtual IP address pool.
1024 Configurations with a rightsourceip=%poolname setting query a SQLite or
1025 MySQL database for leases. The "ipsec pool" command helps in administrating
1026 the pool database. See ipsec pool --help for the available options
1028 - The Authenticated Encryption Algorithms AES-CCM-8/12/16 and AES-GCM-8/12/16
1029 for ESP are now supported starting with the Linux 2.6.25 kernel. The
1030 syntax is e.g. esp=aes128ccm12 or esp=aes256gcm16.
1036 - Support for "Hash and URL" encoded certificate payloads has been implemented
1037 in the IKEv2 daemon charon. Using the "certuribase" option of a CA section
1038 allows to assign a base URL to all certificates issued by the specified CA.
1039 The final URL is then built by concatenating that base and the hex encoded
1040 SHA1 hash of the DER encoded certificate. Note that this feature is disabled
1041 by default and must be enabled using the option "charon.hash_and_url".
1043 - The IKEv2 daemon charon now supports the "uniqueids" option to close multiple
1044 IKE_SAs with the same peer. The option value "keep" prefers existing
1045 connection setups over new ones, where the value "replace" replaces existing
1048 - The crypto factory in libstrongswan additionally supports random number
1049 generators, plugins may provide other sources of randomness. The default
1050 plugin reads raw random data from /dev/(u)random.
1052 - Extended the credential framework by a caching option to allow plugins
1053 persistent caching of fetched credentials. The "cachecrl" option has been
1056 - The new trustchain verification introduced in 4.2.0 has been parallelized.
1057 Threads fetching CRL or OCSP information no longer block other threads.
1059 - A new IKEv2 configuration attribute framework has been introduced allowing
1060 plugins to provide virtual IP addresses, and in the future, other
1061 configuration attribute services (e.g. DNS/WINS servers).
1063 - The stroke plugin has been extended to provide virtual IP addresses from
1064 a pool defined in ipsec.conf. The "rightsourceip" parameter now accepts
1065 address pools in CIDR notation (e.g. 10.1.1.0/24). The parameter also accepts
1066 the value "%poolname", where "poolname" identifies a pool provided by a
1069 - Fixed compilation on uClibc and a couple of other minor bugs.
1071 - Set DPD defaults in ipsec starter to dpd_delay=30s and dpd_timeout=150s.
1073 - The IKEv1 pluto daemon now supports the ESP encryption algorithm CAMELLIA
1074 with key lengths of 128, 192, and 256 bits, as well as the authentication
1075 algorithm AES_XCBC_MAC. Configuration example: esp=camellia192-aesxcbc.
1081 - libstrongswan has been modularized to attach crypto algorithms,
1082 credential implementations (keys, certificates) and fetchers dynamically
1083 through plugins. Existing code has been ported to plugins:
1084 - RSA/Diffie-Hellman implementation using the GNU Multi Precision library
1085 - X509 certificate system supporting CRLs, OCSP and attribute certificates
1086 - Multiple plugins providing crypto algorithms in software
1087 - CURL and OpenLDAP fetcher
1089 - libstrongswan gained a relational database API which uses pluggable database
1090 providers. Plugins for MySQL and SQLite are available.
1092 - The IKEv2 keying daemon charon is more extensible. Generic plugins may provide
1093 connection configuration, credentials and EAP methods or control the daemon.
1094 Existing code has been ported to plugins:
1095 - EAP-AKA, EAP-SIM, EAP-MD5 and EAP-Identity
1096 - stroke configuration, credential and control (compatible to pluto)
1097 - XML bases management protocol to control and query the daemon
1098 The following new plugins are available:
1099 - An experimental SQL configuration, credential and logging plugin on
1100 top of either MySQL or SQLite
1101 - A unit testing plugin to run tests at daemon startup
1103 - The authentication and credential framework in charon has been heavily
1104 refactored to support modular credential providers, proper
1105 CERTREQ/CERT payload exchanges and extensible authorization rules.
1107 - The framework of strongSwan Manager has envolved to the web application
1108 framework libfast (FastCGI Application Server w/ Templates) and is usable
1109 by other applications.
1115 - IKE rekeying in NAT situations did not inherit the NAT conditions
1116 to the rekeyed IKE_SA so that the UDP encapsulation was lost with
1117 the next CHILD_SA rekeying.
1119 - Wrong type definition of the next_payload variable in id_payload.c
1120 caused an INVALID_SYNTAX error on PowerPC platforms.
1122 - Implemented IKEv2 EAP-SIM server and client test modules that use
1123 triplets stored in a file. For details on the configuration see
1124 the scenario 'ikev2/rw-eap-sim-rsa'.
1130 - Fixed error in the ordering of the certinfo_t records in the ocsp cache that
1131 caused multiple entries of the same serial number to be created.
1133 - Implementation of a simple EAP-MD5 module which provides CHAP
1134 authentication. This may be interesting in conjunction with certificate
1135 based server authentication, as weak passwords can't be brute forced
1136 (in contradiction to traditional IKEv2 PSK).
1138 - A complete software based implementation of EAP-AKA, using algorithms
1139 specified in 3GPP2 (S.S0055). This implementation does not use an USIM,
1140 but reads the secrets from ipsec.secrets. Make sure to read eap_aka.h
1143 - Support for vendor specific EAP methods using Expanded EAP types. The
1144 interface to EAP modules has been slightly changed, so make sure to
1145 check the changes if you're already rolling your own modules.
1151 - The default _updown script now dynamically inserts and removes ip6tables
1152 firewall rules if leftfirewall=yes is set in IPv6 connections. New IPv6
1153 net-net and roadwarrior (PSK/RSA) scenarios for both IKEv1 and IKEV2 were
1156 - Implemented RFC4478 repeated authentication to force EAP/Virtual-IP clients
1157 to reestablish an IKE_SA within a given timeframe.
1159 - strongSwan Manager supports configuration listing, initiation and termination
1160 of IKE and CHILD_SAs.
1162 - Fixes and improvements to multithreading code.
1164 - IKEv2 plugins have been renamed to libcharon-* to avoid naming conflicts.
1165 Make sure to remove the old plugins in $libexecdir/ipsec, otherwise they get
1172 - Removed recursive pthread mutexes since uClibc doesn't support them.
1178 - In NAT traversal situations and multiple queued Quick Modes,
1179 those pending connections inserted by auto=start after the
1180 port floating from 500 to 4500 were erronously deleted.
1182 - Added a "forceencaps" connection parameter to enforce UDP encapsulation
1183 to surmount restrictive firewalls. NAT detection payloads are faked to
1184 simulate a NAT situation and trick the other peer into NAT mode (IKEv2 only).
1186 - Preview of strongSwan Manager, a web based configuration and monitoring
1187 application. It uses a new XML control interface to query the IKEv2 daemon
1188 (see http://wiki.strongswan.org/wiki/Manager).
1190 - Experimental SQLite configuration backend which will provide the configuration
1191 interface for strongSwan Manager in future releases.
1193 - Further improvements to MOBIKE support.
1199 - Since some third party IKEv2 implementations run into
1200 problems with strongSwan announcing MOBIKE capability per
1201 default, MOBIKE can be disabled on a per-connection-basis
1202 using the mobike=no option. Whereas mobike=no disables the
1203 sending of the MOBIKE_SUPPORTED notification and the floating
1204 to UDP port 4500 with the IKE_AUTH request even if no NAT
1205 situation has been detected, strongSwan will still support
1206 MOBIKE acting as a responder.
1208 - the default ipsec routing table plus its corresponding priority
1209 used for inserting source routes has been changed from 100 to 220.
1210 It can be configured using the --with-ipsec-routing-table and
1211 --with-ipsec-routing-table-prio options.
1213 - the --enable-integrity-test configure option tests the
1214 integrity of the libstrongswan crypto code during the charon
1217 - the --disable-xauth-vid configure option disables the sending
1218 of the XAUTH vendor ID. This can be used as a workaround when
1219 interoperating with some Windows VPN clients that get into
1220 trouble upon reception of an XAUTH VID without eXtended
1221 AUTHentication having been configured.
1223 - ipsec stroke now supports the rereadsecrets, rereadaacerts,
1224 rereadacerts, and listacerts options.
1230 - If a DNS lookup failure occurs when resolving right=%<FQDN>
1231 or right=<FQDN> combined with rightallowany=yes then the
1232 connection is not updated by ipsec starter thus preventing
1233 the disruption of an active IPsec connection. Only if the DNS
1234 lookup successfully returns with a changed IP address the
1235 corresponding connection definition is updated.
1237 - Routes installed by the keying daemons are now in a separate
1238 routing table with the ID 100 to avoid conflicts with the main
1239 table. Route lookup for IKEv2 traffic is done in userspace to ignore
1240 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
1246 - The pluto IKEv1 daemon now exhibits the same behaviour as its
1247 IKEv2 companion charon by inserting an explicit route via the
1248 _updown script only if a sourceip exists. This is admissible
1249 since routing through the IPsec tunnel is handled automatically
1250 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
1251 parameter is not required any more.
1253 - The new IKEv1 parameter right|leftallowany parameters helps to handle
1254 the case where both peers possess dynamic IP addresses that are
1255 usually resolved using DynDNS or a similar service. The configuration
1260 can be used by the initiator to start up a connection to a peer
1261 by resolving peer.foo.bar into the currently allocated IP address.
1262 Thanks to the rightallowany flag the connection behaves later on
1267 so that the peer can rekey the connection as an initiator when his
1268 IP address changes. An alternative notation is
1272 which will implicitly set rightallowany=yes.
1274 - ipsec starter now fails more gracefully in the presence of parsing
1275 errors. Flawed ca and conn section are discarded and pluto is started
1276 if non-fatal errors only were encountered. If right=%peer.foo.bar
1277 cannot be resolved by DNS then right=%any will be used so that passive
1278 connections as a responder are still possible.
1280 - The new pkcs11initargs parameter that can be placed in the
1281 setup config section of /etc/ipsec.conf allows the definition
1282 of an argument string that is used with the PKCS#11 C_Initialize()
1283 function. This non-standard feature is required by the NSS softoken
1284 library. This patch was contributed by Robert Varga.
1286 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
1287 which caused a segmentation fault in the presence of unknown
1288 or misspelt keywords in ipsec.conf. This bug fix was contributed
1291 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
1292 address configuration changes and updates IKE and IPsec SAs dynamically.
1298 - IKEv2 peer configuration selection now can be based on a given
1299 certification authority using the rightca= statement.
1301 - IKEv2 authentication based on RSA signatures now can handle multiple
1302 certificates issued for a given peer ID. This allows a smooth transition
1303 in the case of a peer certificate renewal.
1305 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
1306 client and returning requested virtual IPs using rightsourceip=%config
1307 on the server. If the server does not support configuration payloads, the
1308 client enforces its leftsourceip parameter.
1310 - The ./configure options --with-uid/--with-gid allow pluto and charon
1311 to drop their privileges to a minimum and change to an other UID/GID. This
1312 improves the systems security, as a possible intruder may only get the
1313 CAP_NET_ADMIN capability.
1315 - Further modularization of charon: Pluggable control interface and
1316 configuration backend modules provide extensibility. The control interface
1317 for stroke is included, and further interfaces using DBUS (NetworkManager)
1318 or XML are on the way. A backend for storing configurations in the daemon
1319 is provided and more advanced backends (using e.g. a database) are trivial
1322 - Fixed a compilation failure in libfreeswan occurring with Linux kernel
1329 - Support for an additional Diffie-Hellman exchange when creating/rekeying
1330 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
1331 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
1332 is implemented properly for rekeying.
1334 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
1335 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
1337 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
1339 - Added support for EAP modules which do not establish an MSK.
1341 - Removed the dependencies from the /usr/include/linux/ headers by
1342 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
1344 - crlNumber is now listed by ipsec listcrls
1346 - The xauth_modules.verify_secret() function now passes the
1353 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
1354 cookies are enabled and protect against DoS attacks with faked source
1355 addresses. Number of IKE_SAs in CONNECTING state is also limited per
1356 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
1357 compared to properly detect retransmissions and incoming retransmits are
1358 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
1360 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
1361 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
1362 enabled by cachecrls=yes.
1364 - Added the configuration options --enable-nat-transport which enables
1365 the potentially insecure NAT traversal for IPsec transport mode and
1366 --disable-vendor-id which disables the sending of the strongSwan
1369 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
1370 a segmentation fault if a malformed payload was detected in the
1371 IKE MR2 message and pluto tried to send an encrypted notification
1374 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
1375 with Windows 2003 Server which uses a wrong VID hash.
1381 - Support of SHA2_384 hash function for protecting IKEv1
1382 negotiations and support of SHA2 signatures in X.509 certificates.
1384 - Fixed a serious bug in the computation of the SHA2-512 HMAC
1385 function. Introduced automatic self-test of all IKEv1 hash
1386 and hmac functions during pluto startup. Failure of a self-test
1387 currently issues a warning only but does not exit pluto [yet].
1389 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
1391 - Full support of CA information sections. ipsec listcainfos
1392 now shows all collected crlDistributionPoints and OCSP
1395 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
1396 This feature requires the HTTP fetching capabilities of the libcurl
1397 library which must be enabled by setting the --enable-http configure
1400 - Refactored core of the IKEv2 message processing code, allowing better
1401 code reuse and separation.
1403 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
1404 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
1405 by the requestor and installed in a resolv.conf file.
1407 - The IKEv2 daemon charon installs a route for each IPsec policy to use
1408 the correct source address even if an application does not explicitly
1411 - Integrated the EAP framework into charon which loads pluggable EAP library
1412 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
1413 on the client side, while the "eap" parameter on the server side defines
1414 the EAP method to use for client authentication.
1415 A generic client side EAP-Identity module and an EAP-SIM authentication
1416 module using a third party card reader implementation are included.
1418 - Added client side support for cookies.
1420 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
1421 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
1422 fixes to enhance interoperability with other implementations.
1428 - strongSwan now interoperates with the NCP Secure Entry Client,
1429 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
1430 XAUTH and Mode Config.
1432 - UNITY attributes are now recognized and UNITY_BANNER is set
1433 to a default string.
1439 - IKEv1: Support for extended authentication (XAUTH) in combination
1440 with ISAKMP Main Mode RSA or PSK authentication. Both client and
1441 server side were implemented. Handling of user credentials can
1442 be done by a run-time loadable XAUTH module. By default user
1443 credentials are stored in ipsec.secrets.
1445 - IKEv2: Support for reauthentication when rekeying
1447 - IKEv2: Support for transport mode
1449 - fixed a lot of bugs related to byte order
1451 - various other bugfixes
1457 - IKEv1: Implementation of ModeConfig push mode via the new connection
1458 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
1460 - IKEv1: The command ipsec statusall now shows "DPD active" for all
1461 ISAKMP SAs that are under active Dead Peer Detection control.
1463 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
1464 Instead of logger, special printf() functions are used to directly
1465 print objects like hosts (%H) identifications (%D), certificates (%Q),
1466 etc. The number of debugging levels have been reduced to:
1468 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
1470 The debugging levels can either be specified statically in ipsec.conf as
1473 charondebug="lib 1, cfg 3, net 2"
1475 or changed at runtime via stroke as
1477 ipsec stroke loglevel cfg 2
1483 - Implemented full support for IPv6-in-IPv6 tunnels.
1485 - Added configuration options for dead peer detection in IKEv2. dpd_action
1486 types "clear", "hold" and "restart" are supported. The dpd_timeout
1487 value is not used, as the normal retransmission policy applies to
1488 detect dead peers. The dpd_delay parameter enables sending of empty
1489 informational message to detect dead peers in case of inactivity.
1491 - Added support for preshared keys in IKEv2. PSK keys configured in
1492 ipsec.secrets are loaded. The authby parameter specifies the authentication
1493 method to authentificate ourself, the other peer may use PSK or RSA.
1495 - Changed retransmission policy to respect the keyingtries parameter.
1497 - Added private key decryption. PEM keys encrypted with AES-128/192/256
1498 or 3DES are supported.
1500 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
1501 encrypt IKE traffic.
1503 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
1504 signed with such a hash algorithm.
1506 - Added initial support for updown scripts. The actions up-host/client and
1507 down-host/client are executed. The leftfirewall=yes parameter
1508 uses the default updown script to insert dynamic firewall rules, a custom
1509 updown script may be specified with the leftupdown parameter.
1515 - Added support for the auto=route ipsec.conf parameter and the
1516 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
1517 CHILD_SAs dynamically on demand when traffic is detected by the
1520 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
1521 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
1522 new keys are generated using perfect forward secrecy. An optional flag
1523 which enforces reauthentication will be implemented later.
1525 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
1526 algorithm configuration statements.
1532 - Full X.509 certificate trust chain verification has been implemented.
1533 End entity certificates can be exchanged via CERT payloads. The current
1534 default is leftsendcert=always, since CERTREQ payloads are not supported
1535 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
1537 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
1538 would offer more possibilities for traffic selection, but the Linux kernel
1539 currently does not support it. That's why we stick with these simple
1540 ipsec.conf rules for now.
1542 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
1543 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
1546 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
1547 notify payloads to detect NAT routers between the peers. It switches
1548 to port 4500, uses UDP encapsulated ESP packets, handles peer address
1549 changes gracefully and sends keep alive message periodically.
1551 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
1552 rekeying, more shared code, cleaner design, proper retransmission
1553 and a more extensible code base.
1555 - The mixed PSK/RSA roadwarrior detection capability introduced by the
1556 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
1557 payloads by the responder right before any defined IKE Main Mode state had
1558 been established. Although any form of bad proposal syntax was being correctly
1559 detected by the payload parser, the subsequent error handler didn't check
1560 the state pointer before logging current state information, causing an
1561 immediate crash of the pluto keying daemon due to a NULL pointer.
1567 - Added algorithm selection to charon: New default algorithms for
1568 ike=aes128-sha-modp2048, as both daemons support it. The default
1569 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
1570 the ike/esp parameter the same way as pluto. As this syntax does
1571 not allow specification of a pseudo random function, the same
1572 algorithm as for integrity is used (currently sha/md5). Supported
1574 Encryption: aes128, aes192, aes256
1575 Integrity/PRF: md5, sha (using hmac)
1576 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
1578 Encryption: aes128, aes192, aes256, 3des, blowfish128,
1579 blowfish192, blowfish256
1580 Integrity: md5, sha1
1581 More IKE encryption algorithms will come after porting libcrypto into
1584 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
1585 perfect forward secrecy is used. The rekeying parameters rekey,
1586 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
1587 when using IKEv2. WARNING: charon currently is unable to handle
1588 simultaneous rekeying. To avoid such a situation, use a large
1589 rekeyfuzz, or even better, set rekey=no on one peer.
1591 - support for host2host, net2net, host2net (roadwarrior) tunnels
1592 using predefined RSA certificates (see uml scenarios for
1593 configuration examples).
1595 - new build environment featuring autotools. Features such
1596 as HTTP, LDAP and smartcard support may be enabled using
1597 the ./configure script. Changing install directories
1598 is possible, too. See ./configure --help for more details.
1600 - better integration of charon with ipsec starter, which allows
1601 (almost) transparent operation with both daemons. charon
1602 handles ipsec commands up, down, status, statusall, listall,
1603 listcerts and allows proper load, reload and delete of connections
1610 - initial support of the IKEv2 protocol. Connections in
1611 ipsec.conf designated by keyexchange=ikev2 are negotiated
1612 by the new IKEv2 charon keying daemon whereas those marked
1613 by keyexchange=ikev1 or the default keyexchange=ike are
1614 handled thy the IKEv1 pluto keying daemon. Currently only
1615 a limited subset of functions are available with IKEv2
1616 (Default AES encryption, authentication based on locally
1617 imported X.509 certificates, unencrypted private RSA keys
1618 in PKCS#1 file format, limited functionality of the ipsec
1625 - the dynamic iptables rules from the _updown_x509 template
1626 for KLIPS and the _updown_policy template for NETKEY have
1627 been merged into the default _updown script. The existing
1628 left|rightfirewall keyword causes the automatic insertion
1629 and deletion of ACCEPT rules for tunneled traffic upon
1630 the successful setup and teardown of an IPsec SA, respectively.
1631 left|rightfirwall can be used with KLIPS under any Linux 2.4
1632 kernel or with NETKEY under a Linux kernel version >= 2.6.16
1633 in conjunction with iptables >= 1.3.5. For NETKEY under a Linux
1634 kernel version < 2.6.16 which does not support IPsec policy
1635 matching yet, please continue to use a copy of the _updown_espmark
1636 template loaded via the left|rightupdown keyword.
1638 - a new left|righthostaccess keyword has been introduced which
1639 can be used in conjunction with left|rightfirewall and the
1640 default _updown script. By default leftfirewall=yes inserts
1641 a bi-directional iptables FORWARD rule for a local client network
1642 with a netmask different from 255.255.255.255 (single host).
1643 This does not allow to access the VPN gateway host via its
1644 internal network interface which is part of the client subnet
1645 because an iptables INPUT and OUTPUT rule would be required.
1646 lefthostaccess=yes will cause this additional ACCEPT rules to
1649 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
1650 payload is preparsed in order to find out whether the roadwarrior
1651 requests PSK or RSA so that a matching connection candidate can
1658 - the new _updown_policy template allows ipsec policy based
1659 iptables firewall rules. Required are iptables version
1660 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
1661 the _updown_espmark template, so that no INPUT mangle rules
1662 are required any more.
1664 - added support of DPD restart mode
1666 - ipsec starter now allows the use of wildcards in include
1667 statements as e.g. in "include /etc/my_ipsec/*.conf".
1668 Patch courtesy of Matthias Haas.
1670 - the Netscape OID 'employeeNumber' is now recognized and can be
1671 used as a Relative Distinguished Name in certificates.
1677 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
1678 command and not of ipsec setup any more.
1680 - ipsec starter now supports AH authentication in conjunction with
1681 ESP encryption. AH authentication is configured in ipsec.conf
1682 via the auth=ah parameter.
1684 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
1685 ipsec whack --scencrypt|scdecrypt <args>.
1687 - get_sa_info() now determines for the native netkey IPsec stack
1688 the exact time of the last use of an active eroute. This information
1689 is used by the Dead Peer Detection algorithm and is also displayed by
1690 the ipsec status command.
1696 - running under the native Linux 2.6 IPsec stack, the function
1697 get_sa_info() is called by ipsec auto --status to display the current
1698 number of transmitted bytes per IPsec SA.
1700 - get_sa_info() is also used by the Dead Peer Detection process to detect
1701 recent ESP activity. If ESP traffic was received from the peer within
1702 the last dpd_delay interval then no R_Y_THERE notification must be sent.
1704 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
1705 in ID_DER_ASN1_DN identities. The following notations are possible:
1707 rightid="unstructuredName=John Doe"
1708 rightid="UN=John Doe"
1710 - fixed a long-standing bug which caused PSK-based roadwarrior connections
1711 to segfault in the function id.c:same_id() called by keys.c:get_secret()
1712 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
1719 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
1721 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
1723 - in order to guarantee backwards-compatibility with the script-based
1724 auto function (e.g. auto --replace), the ipsec starter scripts stores
1725 the defaultroute information in the temporary file /var/run/ipsec.info.
1727 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
1728 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
1731 - the ipsec starter now also recognizes the parameters authby=never and
1732 type=passthrough|pass|drop|reject.
1738 - ipsec starter now supports the also parameter which allows
1739 a modular structure of the connection definitions. Thus
1740 "ipsec start" is now ready to replace "ipsec setup".
1746 - Mathieu Lafon's popular ipsec starter tool has been added to the
1747 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
1748 for his integration work. ipsec starter is a C program which is going
1749 to replace the various shell and awk starter scripts (setup, _plutoload,
1750 _plutostart, _realsetup, _startklips, _confread, and auto). Since
1751 ipsec.conf is now parsed only once, the starting of multiple tunnels is
1752 accelerated tremedously.
1754 - Added support of %defaultroute to the ipsec starter. If the IP address
1755 changes, a HUP signal to the ipsec starter will automatically
1756 reload pluto's connections.
1758 - moved most compile time configurations from pluto/Makefile to
1759 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
1760 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
1762 - removed the ipsec verify and ipsec newhostkey commands
1764 - fixed some 64-bit issues in formatted print statements
1766 - The scepclient functionality implementing the Simple Certificate
1767 Enrollment Protocol (SCEP) is nearly complete but hasn't been
1774 - CA certicates are now automatically loaded from a smartcard
1775 or USB crypto token and appear in the ipsec auto --listcacerts
1782 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
1783 library that does not support the C_Encrypt() Cryptoki
1784 function (e.g. OpenSC), the RSA encryption is done in
1785 software using the public key fetched from the smartcard.
1787 - The scepclient function now allows to define the
1788 validity of a self-signed certificate using the --days,
1789 --startdate, and --enddate options. The default validity
1790 has been changed from one year to five years.
1796 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
1797 interface to other applications for RSA encryption and decryption
1798 via the whack interface. Notation:
1800 ipsec whack --scencrypt <data>
1801 [--inbase 16|hex|64|base64|256|text|ascii]
1802 [--outbase 16|hex|64|base64|256|text|ascii]
1805 ipsec whack --scdecrypt <data>
1806 [--inbase 16|hex|64|base64|256|text|ascii]
1807 [--outbase 16|hex|64|base64|256|text|ascii]
1810 The default setting for inbase and outbase is hex.
1812 The new proxy interface can be used for securing symmetric
1813 encryption keys required by the cryptoloop or dm-crypt
1814 disk encryption schemes, especially in the case when
1815 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
1818 - if the file /etc/ipsec.secrets is lacking during the startup of
1819 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
1820 containing a 2048 bit RSA private key and a matching self-signed
1821 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
1822 is automatically generated by calling the function
1824 ipsec scepclient --out pkcs1 --out cert-self
1826 scepclient was written by Jan Hutter and Martin Willi, students
1827 at the University of Applied Sciences in Rapperswil, Switzerland.
1833 - the current extension of the PKCS#7 framework introduced
1834 a parsing error in PKCS#7 wrapped X.509 certificates that are
1835 e.g. transmitted by Windows XP when multi-level CAs are used.
1836 the parsing syntax has been fixed.
1838 - added a patch by Gerald Richter which tolerates multiple occurrences
1839 of the ipsec0 interface when using KLIPS.
1845 - with gawk-3.1.4 the word "default2 has become a protected
1846 keyword for use in switch statements and cannot be used any
1847 more in the strongSwan scripts. This problem has been
1848 solved by renaming "default" to "defaults" and "setdefault"
1849 in the scripts _confread and auto, respectively.
1851 - introduced the parameter leftsendcert with the values
1853 always|yes (the default, always send a cert)
1854 ifasked (send the cert only upon a cert request)
1855 never|no (never send a cert, used for raw RSA keys and
1858 - fixed the initialization of the ESP key length to a default of
1859 128 bits in the case that the peer does not send a key length
1860 attribute for AES encryption.
1862 - applied Herbert Xu's uniqueIDs patch
1864 - applied Herbert Xu's CLOEXEC patches
1870 - CRLs can now be cached also in the case when the issuer's
1871 certificate does not contain a subjectKeyIdentifier field.
1872 In that case the subjectKeyIdentifier is computed by pluto as the
1873 160 bit SHA-1 hash of the issuer's public key in compliance
1874 with section 4.2.1.2 of RFC 3280.
1876 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
1877 not only multiple Quick Modes of a given connection but also
1878 multiple connections between two security gateways.
1884 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
1885 installed either by setting auto=route in ipsec.conf or by
1886 a connection put into hold, generates an XFRM_AQUIRE event
1887 for each packet that wants to use the not-yet exisiting
1888 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
1889 the Quick Mode queue, causing multiple IPsec SA to be
1890 established in rapid succession. Starting with strongswan-2.5.1
1891 only a single IPsec SA is established per host-pair connection.
1893 - Right after loading the PKCS#11 module, all smartcard slots are
1894 searched for certificates. The result can be viewed using
1897 ipsec auto --listcards
1899 The certificate objects found in the slots are numbered
1900 starting with #1, #2, etc. This position number can be used to address
1901 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
1902 in ipsec.conf and ipsec.secrets, respectively:
1904 %smartcard (selects object #1)
1905 %smartcard#1 (selects object #1)
1906 %smartcard#3 (selects object #3)
1908 As an alternative the existing retrieval scheme can be used:
1910 %smartcard:45 (selects object with id=45)
1911 %smartcard0 (selects first object in slot 0)
1912 %smartcard4:45 (selects object in slot 4 with id=45)
1914 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
1915 private key flags either C_Sign() or C_Decrypt() is used
1916 to generate a signature.
1918 - The output buffer length parameter siglen in C_Sign()
1919 is now initialized to the actual size of the output
1920 buffer prior to the function call. This fixes the
1921 CKR_BUFFER_TOO_SMALL error that could occur when using
1922 the OpenSC PKCS#11 module.
1924 - Changed the initialization of the PKCS#11 CK_MECHANISM in
1925 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
1927 - Refactored the RSA public/private key code and transferred it
1928 from keys.c to the new pkcs1.c file as a preparatory step
1929 towards the release of the SCEP client.
1935 - The loading of a PKCS#11 smartcard library module during
1936 runtime does not require OpenSC library functions any more
1937 because the corresponding code has been integrated into
1938 smartcard.c. Also the RSAREF pkcs11 header files have been
1939 included in a newly created pluto/rsaref directory so that
1940 no external include path has to be defined any longer.
1942 - A long-awaited feature has been implemented at last:
1943 The local caching of CRLs fetched via HTTP or LDAP, activated
1944 by the parameter cachecrls=yes in the config setup section
1945 of ipsec.conf. The dynamically fetched CRLs are stored under
1946 a unique file name containing the issuer's subjectKeyID
1947 in /etc/ipsec.d/crls.
1949 - Applied a one-line patch courtesy of Michael Richardson
1950 from the Openswan project which fixes the kernel-oops
1951 in KLIPS when an snmp daemon is running on the same box.
1957 - Eliminated null length CRL distribution point strings.
1959 - Fixed a trust path evaluation bug introduced with 2.4.3
1965 - Improved the joint OCSP / CRL revocation policy.
1966 OCSP responses have precedence over CRL entries.
1968 - Introduced support of CRLv2 reason codes.
1970 - Fixed a bug with key-pad equipped readers which caused
1971 pluto to prompt for the pin via the console when the first
1972 occasion to enter the pin via the key-pad was missed.
1974 - When pluto is built with LDAP_V3 enabled, the library
1975 liblber required by newer versions of openldap is now
1982 - Added the _updown_espmark template which requires all
1983 incoming ESP traffic to be marked with a default mark
1986 - Introduced the pkcs11keepstate parameter in the config setup
1987 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
1988 session and login states are kept as long as possible during
1989 the lifetime of pluto. This means that a PIN entry via a key
1990 pad has to be done only once.
1992 - Introduced the pkcs11module parameter in the config setup
1993 section of ipsec.conf which specifies the PKCS#11 module
1994 to be used with smart cards. Example:
1996 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
1998 - Added support of smartcard readers equipped with a PIN pad.
2000 - Added patch by Jay Pfeifer which detects when netkey
2001 modules have been statically built into the Linux 2.6 kernel.
2003 - Added two patches by Herbert Xu. The first uses ip xfrm
2004 instead of setkey to flush the IPsec policy database. The
2005 second sets the optional flag in inbound IPComp SAs only.
2007 - Applied Ulrich Weber's patch which fixes an interoperability
2008 problem between native IPsec and KLIPS systems caused by
2009 setting the replay window to 32 instead of 0 for ipcomp.
2015 - Fixed a bug which caused an unwanted Mode Config request
2016 to be initiated in the case where "right" was used to denote
2017 the local side in ipsec.conf and "left" the remote side,
2018 contrary to the recommendation that "right" be remote and
2025 - updated Vendor ID to strongSwan-2.4.0
2027 - updated copyright statement to include David Buechi and
2034 - strongSwan now communicates with attached smartcards and
2035 USB crypto tokens via the standardized PKCS #11 interface.
2036 By default the OpenSC library from www.opensc.org is used
2037 but any other PKCS#11 library could be dynamically linked.
2038 strongSwan's PKCS#11 API was implemented by David Buechi
2039 and Michael Meier, both graduates of the Zurich University
2040 of Applied Sciences in Winterthur, Switzerland.
2042 - When a %trap eroute is triggered by an outgoing IP packet
2043 then the native IPsec stack of the Linux 2.6 kernel [often/
2044 always?] returns an XFRM_ACQUIRE message with an undefined
2045 protocol family field and the connection setup fails.
2046 As a workaround IPv4 (AF_INET) is now assumed.
2048 - the results of the UML test scenarios are now enhanced
2049 with block diagrams of the virtual network topology used
2050 in a particular test.
2056 - fixed IV used to decrypt informational messages.
2057 This bug was introduced with Mode Config functionality.
2059 - fixed NCP Vendor ID.
2061 - undid one of Ulrich Weber's maximum udp size patches
2062 because it caused a segmentation fault with NAT-ed
2065 - added UML scenarios wildcards and attr-cert which
2066 demonstrate the implementation of IPsec policies based
2067 on wildcard parameters contained in Distinguished Names and
2068 on X.509 attribute certificates, respectively.
2074 - Added basic Mode Config functionality
2076 - Added Mathieu Lafon's patch which upgrades the status of
2077 the NAT-Traversal implementation to RFC 3947.
2079 - The _startklips script now also loads the xfrm4_tunnel
2082 - Added Ulrich Weber's netlink replay window size and
2083 maximum udp size patches.
2085 - UML testing now uses the Linux 2.6.10 UML kernel by default.
2091 - Eric Marchionni and Patrik Rayo, both recent graduates from
2092 the Zuercher Hochschule Winterthur in Switzerland, created a
2093 User-Mode-Linux test setup for strongSwan. For more details
2094 please read the INSTALL and README documents in the testing
2097 - Full support of group attributes based on X.509 attribute
2098 certificates. Attribute certificates can be generated
2099 using the openac facility. For more details see
2103 The group attributes can be used in connection definitions
2104 in order to give IPsec access to specific user groups.
2105 This is done with the new parameter left|rightgroups as in
2107 rightgroups="Research, Sales"
2109 giving access to users possessing the group attributes
2110 Research or Sales, only.
2112 - In Quick Mode clients with subnet mask /32 are now
2113 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
2114 fix rekeying problems with the SafeNet/SoftRemote and NCP
2115 Secure Entry Clients.
2117 - Changed the defaults of the ikelifetime and keylife parameters
2118 to 3h and 1h, respectively. The maximum allowable values are
2119 now both set to 24 h.
2121 - Suppressed notification wars between two IPsec peers that
2122 could e.g. be triggered by incorrect ISAKMP encryption.
2124 - Public RSA keys can now have identical IDs if either the
2125 issuing CA or the serial number is different. The serial
2126 number of a certificate is now shown by the command
2128 ipsec auto --listpubkeys
2134 - Added Tuomo Soini's sourceip feature which allows a strongSwan
2135 roadwarrior to use a fixed Virtual IP (see README section 2.6)
2136 and reduces the well-known four tunnel case on VPN gateways to
2137 a single tunnel definition (see README section 2.4).
2139 - Fixed a bug occurring with NAT-Traversal enabled when the responder
2140 suddenly turns initiator and the initiator cannot find a matching
2141 connection because of the floated IKE port 4500.
2143 - Removed misleading ipsec verify command from barf.
2145 - Running under the native IP stack, ipsec --version now shows
2146 the Linux kernel version (courtesy to the Openswan project).
2152 - Introduced the ipsec auto --listalgs monitoring command which lists
2153 all currently registered IKE and ESP algorithms.
2155 - Fixed a bug in the ESP algorithm selection occurring when the strict flag
2156 is set and the first proposed transform does not match.
2158 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
2159 occurring when a smartcard is present.
2161 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
2163 - Fixed the printing of the notification names (null)
2165 - Applied another of Herbert Xu's Netlink patches.
2171 - Support of Dead Peer Detection. The connection parameter
2173 dpdaction=clear|hold
2175 activates DPD for the given connection.
2177 - The default Opportunistic Encryption (OE) policy groups are not
2178 automatically included anymore. Those wishing to activate OE can include
2179 the policy group with the following statement in ipsec.conf:
2181 include /etc/ipsec.d/examples/oe.conf
2183 The default for [right|left]rsasigkey is now set to %cert.
2185 - strongSwan now has a Vendor ID of its own which can be activated
2186 using the compile option VENDORID
2188 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
2190 - Applied Herbert Xu's patch fixing an ESPINUDP problem
2192 - Applied Herbert Xu's patch setting source/destination port numbers.
2194 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
2195 lost during the migration from SuperFreeS/WAN.
2197 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
2199 - Fixed the unsharing of alg parameters when instantiating group
2206 - Thomas Walpuski made me aware of a potential DoS attack via
2207 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
2208 certificates in Pluto's authority certificate store. This vulnerability
2209 was fixed by establishing trust in CA candidate certificates up to a
2210 trusted root CA prior to insertion into Pluto's chained list.
2212 - replaced the --assign option by the -v option in the auto awk script
2213 in order to make it run with mawk under debian/woody.
2219 - Split of the status information between ipsec auto --status (concise)
2220 and ipsec auto --statusall (verbose). Both commands can be used with
2221 an optional connection selector:
2223 ipsec auto --status[all] <connection_name>
2225 - Added the description of X.509 related features to the ipsec_auto(8)
2228 - Hardened the ASN.1 parser in debug mode, especially the printing
2229 of malformed distinguished names.
2231 - The size of an RSA public key received in a certificate is now restricted to
2233 512 bits <= modulus length <= 8192 bits.
2235 - Fixed the debug mode enumeration.
2241 - Fixed another PKCS#7 vulnerability which could lead to an
2242 endless loop while following the X.509 trust chain.
2248 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
2249 that accepted end certificates having identical issuer and subject
2250 distinguished names in a multi-tier X.509 trust chain.
2256 - Removed all remaining references to ipsec_netlink.h in KLIPS.
2262 - The new "ca" section allows to define the following parameters:
2265 cacert=koolCA.pem # cacert of kool CA
2266 ocspuri=http://ocsp.kool.net:8001 # ocsp server
2267 ldapserver=ldap.kool.net # default ldap server
2268 crluri=http://www.kool.net/kool.crl # crl distribution point
2269 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
2270 auto=add # add, ignore
2272 The ca definitions can be monitored via the command
2274 ipsec auto --listcainfos
2276 - Fixed cosmetic corruption of /proc filesystem by integrating
2277 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
2283 - Added support for the 818043 NAT-Traversal update of Microsoft's
2284 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
2286 - A symbolic link to libcrypto is now added in the kernel sources
2287 during kernel compilation
2289 - Fixed a couple of 64 bit issues (mostly casts to int).
2290 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
2292 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
2293 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
2294 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
2300 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
2301 certificate extension which contains no generalName item) can cause
2302 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
2303 been hardened to make it more robust against malformed ASN.1 objects.
2305 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
2306 Linux 2.6 IPsec stack.
2312 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12
projects / strongswan.git / blob