4 - The tnc-pdp plugin implements a RADIUS server interface allowing
5 a strongSwan TNC server to act as a Policy Decision Point.
7 - Added infrastructure to listen to RADIUS Dynamic Authorization
10 - Added support for untruncated MD5 and SHA1 HMACs in ESP as used in
17 - Upgraded the TCG IF-IMC and IF-IMV C API to the upcoming version 1.3
18 which supports IF-TNCCS 2.0 long message types, the exclusive flags
19 and multiple IMC/IMV IDs. Both the TNC Client and Server as well as
20 the "Test", "Scanner", and "Attestation" IMC/IMV pairs were updated.
22 - Fully implemented the "TCG Attestation PTS Protocol: Binding to IF-M"
23 standard (TLV-based messages only). TPM-based remote attestation of
24 Linux IMA (Integrity Measurement Architecture) possible. Measurement
25 reference values are automatically stored in an SQLite database.
27 - The EAP-RADIUS authentication backend supports RADIUS accounting. It sends
28 start/stop messages containing Username, Framed-IP and Input/Output-Octets
29 attributes and has been tested against FreeRADIUS and Microsoft NPS.
31 - Added support for PKCS#8 encoded private keys via the libstrongswan
32 pkcs8 plugin. This is the default format used by some OpenSSL tools since
33 version 1.0.0 (e.g. openssl req with -keyout).
35 - Added session resumption support to the strongSwan TLS stack.
41 - Because of changing checksums before and after installation which caused
42 the integrity tests to fail we avoided directly linking libsimaka, libtls and
43 libtnccs to those libcharon plugins which make use of these dynamic libraries.
44 Instead we linked the libraries to the charon daemon. Unfortunately Ubuntu
45 11.10 activated the --as-needed ld option which discards explicit links
46 to dynamic libraries that are not actually used by the charon daemon itself,
47 thus causing failures during the loading of the plugins which depend on these
48 libraries for resolving external symbols.
50 - Therefore our approach of computing integrity checksums for plugins had to be
51 changed radically by moving the hash generation from the compilation to the
52 post-installation phase.
58 - The new libstrongswan certexpire plugin collects expiration information of
59 all used certificates and exports them to CSV files. It either directly
60 exports them or uses cron style scheduling for batch exports.
62 - starter passes unresolved hostnames to charon, allowing it to do name
63 resolution not before the connection attempt. This is especially useful with
64 connections between hosts using dynamic IP addresses. Thanks to Mirko Parthey
65 for the initial patch.
67 - The android plugin can now be used without the Android frontend patch and
68 provides DNS server registration and logging to logcat.
70 - Pluto and starter (plus stroke and whack) have been ported to Android.
72 - Support for ECDSA private and public key operations has been added to the
73 pkcs11 plugin. The plugin now also provides DH and ECDH via PKCS#11 and can
74 use tokens as random number generators (RNG). By default only private key
75 operations are enabled, more advanced features have to be enabled by their
76 option in strongswan.conf. This also applies to public key operations (even
77 for keys not stored on the token) which were enabled by default before.
79 - The libstrongswan plugin system now supports detailed plugin dependencies.
80 Many plugins have been extended to export its capabilities and requirements.
81 This allows the plugin loader to resolve plugin loading order automatically,
82 and in future releases, to dynamically load the required features on demand.
83 Existing third party plugins are source (but not binary) compatible if they
84 properly initialize the new get_features() plugin function to NULL.
86 - The tnc-ifmap plugin implements a TNC IF-MAP 2.0 client which can deliver
87 metadata about IKE_SAs via a SOAP interface to a MAP server. The tnc-ifmap
88 plugin requires the Apache Axis2/C library.
94 - Our private libraries (e.g. libstrongswan) are not installed directly in
95 prefix/lib anymore. Instead a subdirectory is used (prefix/lib/ipsec/ by
96 default). The plugins directory is also moved from libexec/ipsec/ to that
99 - The dynamic IMC/IMV libraries were moved from the plugins directory to
100 a new imcvs directory in the prefix/lib/ipsec/ subdirectory.
102 - Job priorities were introduced to prevent thread starvation caused by too
103 many threads handling blocking operations (such as CRL fetching). Refer to
104 strongswan.conf(5) for details.
106 - Two new strongswan.conf options allow to fine-tune performance on IKEv2
107 gateways by dropping IKE_SA_INIT requests on high load.
109 - IKEv2 charon daemon supports start PASS and DROP shunt policies
110 preventing traffic to go through IPsec connections. Installation of the
111 shunt policies either via the XFRM netfilter or PFKEYv2 IPsec kernel
114 - The history of policies installed in the kernel is now tracked so that e.g.
115 trap policies are correctly updated when reauthenticated SAs are terminated.
117 - IMC/IMV Scanner pair implementing the RFC 5792 PA-TNC (IF-M) protocol.
118 Using "netstat -l" the IMC scans open listening ports on the TNC client
119 and sends a port list to the IMV which based on a port policy decides if
120 the client is admitted to the network.
121 (--enable-imc-scanner/--enable-imv-scanner).
123 - IMC/IMV Test pair implementing the RFC 5792 PA-TNC (IF-M) protocol.
124 (--enable-imc-test/--enable-imv-test).
126 - The IKEv2 close action does not use the same value as the ipsec.conf dpdaction
127 setting, but the value defined by its own closeaction keyword. The action
128 is triggered if the remote peer closes a CHILD_SA unexpectedly.
134 - The whitelist plugin for the IKEv2 daemon maintains an in-memory identity
135 whitelist. Any connection attempt of peers not whitelisted will get rejected.
136 The 'ipsec whitelist' utility provides a simple command line frontend for
137 whitelist administration.
139 - The duplicheck plugin provides a specialized form of duplicate checking,
140 doing a liveness check on the old SA and optionally notify a third party
141 application about detected duplicates.
143 - The coupling plugin permanently couples two or more devices by limiting
144 authentication to previously used certificates.
146 - In the case that the peer config and child config don't have the same name
147 (usually in SQL database defined connections), ipsec up|route <peer config>
148 starts|routes all associated child configs and ipsec up|route <child config>
149 only starts|routes the specific child config.
151 - fixed the encoding and parsing of X.509 certificate policy statements (CPS).
153 - Duncan Salerno contributed the eap-sim-pcsc plugin implementing a
154 pcsc-lite based SIM card backend.
156 - The eap-peap plugin implements the EAP PEAP protocol. Interoperates
157 successfully with a FreeRADIUS server and Windows 7 Agile VPN clients.
159 - The IKEv2 daemon charon rereads strongswan.conf on SIGHUP and instructs
160 all plugins to reload. Currently only the eap-radius and the attr plugins
161 support configuration reloading.
163 - Added userland support to the IKEv2 daemon for Extended Sequence Numbers
164 support coming with Linux 2.6.39. To enable ESN on a connection, add
165 the 'esn' keyword to the proposal. The default proposal uses 32-bit sequence
166 numbers only ('noesn'), and the same value is used if no ESN mode is
167 specified. To negotiate ESN support with the peer, include both, e.g.
168 esp=aes128-sha1-esn-noesn.
170 - In addition to ESN, Linux 2.6.39 gained support for replay windows larger
171 than 32 packets. The new global strongswan.conf option 'charon.replay_window'
172 configures the size of the replay window, in packets.
178 - Sansar Choinyambuu implemented the RFC 5793 Posture Broker Protocol (BP)
179 compatible with Trusted Network Connect (TNC). The TNCCS 2.0 protocol
180 requires the tnccs_20, tnc_imc and tnc_imv plugins but does not depend
181 on the libtnc library. Any available IMV/IMC pairs conforming to the
182 Trusted Computing Group's TNC-IF-IMV/IMC 1.2 interface specification
183 can be loaded via /etc/tnc_config.
185 - Re-implemented the TNCCS 1.1 protocol by using the tnc_imc and tnc_imv
186 in place of the external libtnc library.
188 - The tnccs_dynamic plugin loaded on a TNC server in addition to the
189 tnccs_11 and tnccs_20 plugins, dynamically detects the IF-TNCCS
190 protocol version used by a TNC client and invokes an instance of
191 the corresponding protocol stack.
193 - IKE and ESP proposals can now be stored in an SQL database using a
194 new proposals table. The start_action field in the child_configs
195 tables allows the automatic starting or routing of connections stored
198 - The new certificate_authorities and certificate_distribution_points
199 tables make it possible to store CRL and OCSP Certificate Distribution
200 points in an SQL database.
202 - The new 'include' statement allows to recursively include other files in
203 strongswan.conf. Existing sections and values are thereby extended and
204 replaced, respectively.
206 - Due to the changes in the parser for strongswan.conf, the configuration
207 syntax for the attr plugin has changed. Previously, it was possible to
208 specify multiple values of a specific attribute type by adding multiple
209 key/value pairs with the same key (e.g. dns) to the plugins.attr section.
210 Because values with the same key now replace previously defined values
211 this is not possible anymore. As an alternative, multiple values can be
212 specified by separating them with a comma (e.g. dns = 1.2.3.4, 2.3.4.5).
214 - ipsec listalgs now appends (set in square brackets) to each crypto
215 algorithm listed the plugin that registered the function.
217 - Traffic Flow Confidentiality padding supported with Linux 2.6.38 can be used
218 by the IKEv2 daemon. The ipsec.conf 'tfc' keyword pads all packets to a given
219 boundary, the special value '%mtu' pads all packets to the path MTU.
221 - The new af-alg plugin can use various crypto primitives of the Linux Crypto
222 API using the AF_ALG interface introduced with 2.6.38. This removes the need
223 for additional userland implementations of symmetric cipher, hash, hmac and
226 - The IKEv2 daemon supports the INITIAL_CONTACT notify as initiator and
227 responder. The notify is sent when initiating configurations with a unique
228 policy, set in ipsec.conf via the global 'uniqueids' option.
230 - The conftest conformance testing framework enables the IKEv2 stack to perform
231 many tests using a distinct tool and configuration frontend. Various hooks
232 can alter reserved bits, flags, add custom notifies and proposals, reorder
233 or drop messages and much more. It is enabled using the --enable-conftest
236 - The new libstrongswan constraints plugin provides advanced X.509 constraint
237 checking. In additon to X.509 pathLen constraints, the plugin checks for
238 nameConstraints and certificatePolicies, including policyMappings and
239 policyConstraints. The x509 certificate plugin and the pki tool have been
240 enhanced to support these extensions. The new left/rightcertpolicy ipsec.conf
241 connection keywords take OIDs a peer certificate must have.
243 - The left/rightauth ipsec.conf keywords accept values with a minimum strength
244 for trustchain public keys in bits, such as rsa-2048 or ecdsa-256.
246 - The revocation and x509 libstrongswan plugins and the pki tool gained basic
247 support for delta CRLs.
253 - IMPORTANT: the default keyexchange mode 'ike' is changing with release 4.5
254 from 'ikev1' to 'ikev2', thus commemorating the five year anniversary of the
255 IKEv2 RFC 4306 and its mature successor RFC 5996. The time has definitively
256 come for IKEv1 to go into retirement and to cede its place to the much more
257 robust, powerful and versatile IKEv2 protocol!
259 - Added new ctr, ccm and gcm plugins providing Counter, Counter with CBC-MAC
260 and Galois/Counter Modes based on existing CBC implementations. These
261 new plugins bring support for AES and Camellia Counter and CCM algorithms
262 and the AES GCM algorithms for use in IKEv2.
264 - The new pkcs11 plugin brings full Smartcard support to the IKEv2 daemon and
265 the pki utility using one or more PKCS#11 libraries. It currently supports
266 RSA private and public key operations and loads X.509 certificates from
269 - Implemented a general purpose TLS stack based on crypto and credential
270 primitives of libstrongswan. libtls supports TLS versions 1.0, 1.1 and 1.2,
271 ECDHE-ECDSA/RSA, DHE-RSA and RSA key exchange algorithms and RSA/ECDSA based
272 client authentication.
274 - Based on libtls, the eap-tls plugin brings certificate based EAP
275 authentication for client and server. It is compatible to Windows 7 IKEv2
276 Smartcard authentication and the OpenSSL based FreeRADIUS EAP-TLS backend.
278 - Implemented the TNCCS 1.1 Trusted Network Connect protocol using the
279 libtnc library on the strongSwan client and server side via the tnccs_11
280 plugin and optionally connecting to a TNC@FHH-enhanced FreeRADIUS AAA server.
281 Depending on the resulting TNC Recommendation, strongSwan clients are granted
282 access to a network behind a strongSwan gateway (allow), are put into a
283 remediation zone (isolate) or are blocked (none), respectively. Any number
284 of Integrity Measurement Collector/Verifier pairs can be attached
285 via the tnc-imc and tnc-imv charon plugins.
287 - The IKEv1 daemon pluto now uses the same kernel interfaces as the IKEv2
288 daemon charon. As a result of this, pluto now supports xfrm marks which
289 were introduced in charon with 4.4.1.
291 - Applets for Maemo 5 (Nokia) allow to easily configure and control IKEv2
292 based VPN connections with EAP authentication on supported devices.
294 - The RADIUS plugin eap-radius now supports multiple RADIUS servers for
295 redundant setups. Servers are selected by a defined priority, server load and
298 - The simple led plugin controls hardware LEDs through the Linux LED subsystem.
299 It currently shows activity of the IKE daemon and is a good example how to
300 implement a simple event listener.
302 - Improved MOBIKE behavior in several corner cases, for instance, if the
303 initial responder moves to a different address.
305 - Fixed left-/rightnexthop option, which was broken since 4.4.0.
307 - Fixed a bug not releasing a virtual IP address to a pool if the XAUTH
308 identity was different from the IKE identity.
310 - Fixed the alignment of ModeConfig messages on 4-byte boundaries in the
311 case where the attributes are not a multiple of 4 bytes (e.g. Cisco's
314 - Fixed the interoperability of the socket_raw and socket_default
317 - Added man page for strongswan.conf
323 - Support of xfrm marks in IPsec SAs and IPsec policies introduced
324 with the Linux 2.6.34 kernel. For details see the example scenarios
325 ikev2/nat-two-rw-mark, ikev2/rw-nat-mark-in-out and ikev2/net2net-psk-dscp.
327 - The PLUTO_MARK_IN and PLUTO_ESP_ENC environment variables can be used
328 in a user-specific updown script to set marks on inbound ESP or
331 - The openssl plugin now supports X.509 certificate and CRL functions.
333 - OCSP/CRL checking in IKEv2 has been moved to the revocation plugin, enabled
334 by default. Plase update manual load directives in strongswan.conf.
336 - RFC3779 ipAddrBlock constraint checking has been moved to the addrblock
337 plugin, disabled by default. Enable it and update manual load directives
338 in strongswan.conf, if required.
340 - The pki utility supports CRL generation using the --signcrl command.
342 - The ipsec pki --self, --issue and --req commands now support output in
343 PEM format using the --outform pem option.
345 - The major refactoring of the IKEv1 Mode Config functionality now allows
346 the transport and handling of any Mode Config attribute.
348 - The RADIUS proxy plugin eap-radius now supports multiple servers. Configured
349 servers are chosen randomly, with the option to prefer a specific server.
350 Non-responding servers are degraded by the selection process.
352 - The ipsec pool tool manages arbitrary configuration attributes stored
353 in an SQL database. ipsec pool --help gives the details.
355 - The new eap-simaka-sql plugin acts as a backend for EAP-SIM and EAP-AKA,
356 reading triplets/quintuplets from an SQL database.
358 - The High Availability plugin now supports a HA enabled in-memory address
359 pool and Node reintegration without IKE_SA rekeying. The latter allows
360 clients without IKE_SA rekeying support to keep connected during
361 reintegration. Additionally, many other issues have been fixed in the ha
364 - Fixed a potential remote code execution vulnerability resulting from
365 the misuse of snprintf(). The vulnerability is exploitable by
366 unauthenticated users.
372 - The IKEv2 High Availability plugin has been integrated. It provides
373 load sharing and failover capabilities in a cluster of currently two nodes,
374 based on an extend ClusterIP kernel module. More information is available at
375 http://wiki.strongswan.org/projects/strongswan/wiki/HighAvailability.
376 The development of the High Availability functionality was sponsored by
377 secunet Security Networks AG.
379 - Added IKEv1 and IKEv2 configuration support for the AES-GMAC
380 authentication-only ESP cipher. Our aes_gmac kernel patch or a Linux
381 2.6.34 kernel is required to make AES-GMAC available via the XFRM
384 - Added support for Diffie-Hellman groups 22, 23 and 24 to the gmp, gcrypt
385 and openssl plugins, usable by both pluto and charon. The new proposal
386 keywords are modp1024s160, modp2048s224 and modp2048s256. Thanks to Joy Latten
387 from IBM for his contribution.
389 - The IKEv1 pluto daemon supports RAM-based virtual IP pools using
390 the rightsourceip directive with a subnet from which addresses
393 - The ipsec pki --gen and --pub commands now allow the output of
394 private and public keys in PEM format using the --outform pem
397 - The new DHCP plugin queries virtual IP addresses for clients from a DHCP
398 server using broadcasts, or a defined server using the
399 charon.plugins.dhcp.server strongswan.conf option. DNS/WINS server information
400 is additionally served to clients if the DHCP server provides such
401 information. The plugin is used in ipsec.conf configurations having
402 rightsourceip set to %dhcp.
404 - A new plugin called farp fakes ARP responses for virtual IP addresses
405 handed out to clients from the IKEv2 daemon charon. The plugin lets a
406 road-warrior act as a client on the local LAN if it uses a virtual IP
407 from the responders subnet, e.g. acquired using the DHCP plugin.
409 - The existing IKEv2 socket implementations have been migrated to the
410 socket-default and the socket-raw plugins. The new socket-dynamic plugin
411 binds sockets dynamically to ports configured via the left-/rightikeport
412 ipsec.conf connection parameters.
414 - The android charon plugin stores received DNS server information as "net.dns"
415 system properties, as used by the Android platform.
421 - The IKEv2 daemon supports RFC 3779 IP address block constraints
422 carried as a critical X.509v3 extension in the peer certificate.
424 - The ipsec pool --add|del dns|nbns command manages DNS and NBNS name
425 server entries that are sent via the IKEv1 Mode Config or IKEv2
426 Configuration Payload to remote clients.
428 - The Camellia cipher can be used as an IKEv1 encryption algorithm.
430 - The IKEv1 and IKEV2 daemons now check certificate path length constraints.
432 - The new ipsec.conf conn option "inactivity" closes a CHILD_SA if no traffic
433 was sent or received within the given interval. To close the complete IKE_SA
434 if its only CHILD_SA was inactive, set the global strongswan.conf option
435 "charon.inactivity_close_ike" to yes.
437 - More detailed IKEv2 EAP payload information in debug output
439 - IKEv2 EAP-SIM and EAP-AKA share joint libsimaka library
441 - Added required userland changes for proper SHA256 and SHA384/512 in ESP that
442 will be introduced with Linux 2.6.33. The "sha256"/"sha2_256" keyword now
443 configures the kernel with 128 bit truncation, not the non-standard 96
444 bit truncation used by previous releases. To use the old 96 bit truncation
445 scheme, the new "sha256_96" proposal keyword has been introduced.
447 - Fixed IPComp in tunnel mode, stripping out the duplicated outer header. This
448 change makes IPcomp tunnel mode connections incompatible with previous
449 releases; disable compression on such tunnels.
451 - Fixed BEET mode connections on recent kernels by installing SAs with
452 appropriate traffic selectors, based on a patch by Michael Rossberg.
454 - Using extensions (such as BEET mode) and crypto algorithms (such as twofish,
455 serpent, sha256_96) allocated in the private use space now require that we
456 know its meaning, i.e. we are talking to strongSwan. Use the new
457 "charon.send_vendor_id" option in strongswan.conf to let the remote peer know
460 - Experimental support for draft-eronen-ipsec-ikev2-eap-auth, where the
461 responder omits public key authentication in favor of a mutual authentication
462 method. To enable EAP-only authentication, set rightauth=eap on the responder
463 to rely only on the MSK constructed AUTH payload. This not-yet standardized
464 extension requires the strongSwan vendor ID introduced above.
466 - The IKEv1 daemon ignores the Juniper SRX notification type 40001, thus
467 allowing interoperability.
473 - The IKEv1 pluto daemon can now use SQL-based address pools to deal out
474 virtual IP addresses as a Mode Config server. The pool capability has been
475 migrated from charon's sql plugin to a new attr-sql plugin which is loaded
476 by libstrongswan and which can be used by both daemons either with a SQLite
477 or MySQL database and the corresponding plugin.
479 - Plugin names have been streamlined: EAP plugins now have a dash after eap
480 (e.g. eap-sim), as it is used with the --enable-eap-sim ./configure option.
481 Plugin configuration sections in strongswan.conf now use the same name as the
482 plugin itself (i.e. with a dash). Make sure to update "load" directives and
483 the affected plugin sections in existing strongswan.conf files.
485 - The private/public key parsing and encoding has been split up into
486 separate pkcs1, pgp, pem and dnskey plugins. The public key implementation
487 plugins gmp, gcrypt and openssl can all make use of them.
489 - The EAP-AKA plugin can use different backends for USIM/quintuplet
490 calculations, very similar to the EAP-SIM plugin. The existing 3GPP2 software
491 implementation has been migrated to a separate plugin.
493 - The IKEv2 daemon charon gained basic PGP support. It can use locally installed
494 peer certificates and can issue signatures based on RSA private keys.
496 - The new 'ipsec pki' tool provides a set of commands to maintain a public
497 key infrastructure. It currently supports operations to create RSA and ECDSA
498 private/public keys, calculate fingerprints and issue or verify certificates.
500 - Charon uses a monotonic time source for statistics and job queueing, behaving
501 correctly if the system time changes (e.g. when using NTP).
503 - In addition to time based rekeying, charon supports IPsec SA lifetimes based
504 on processed volume or number of packets. They new ipsec.conf paramaters
505 'lifetime' (an alias to 'keylife'), 'lifebytes' and 'lifepackets' handle
506 SA timeouts, while the parameters 'margintime' (an alias to rekeymargin),
507 'marginbytes' and 'marginpackets' trigger the rekeying before a SA expires.
508 The existing parameter 'rekeyfuzz' affects all margins.
510 - If no CA/Gateway certificate is specified in the NetworkManager plugin,
511 charon uses a set of trusted root certificates preinstalled by distributions.
512 The directory containing CA certificates can be specified using the
513 --with-nm-ca-dir=path configure option.
515 - Fixed the encoding of the Email relative distinguished name in left|rightid
518 - Fixed the broken parsing of PKCS#7 wrapped certificates by the pluto daemon.
520 - Fixed smartcard-based authentication in the pluto daemon which was broken by
521 the ECDSA support introduced with the 4.3.2 release.
523 - A patch contributed by Heiko Hund fixes mixed IPv6 in IPv4 and vice versa
524 tunnels established with the IKEv1 pluto daemon.
526 - The pluto daemon now uses the libstrongswan x509 plugin for certificates and
527 CRls and the struct id type was replaced by identification_t used by charon
528 and the libstrongswan library.
534 - IKEv2 charon daemon ported to FreeBSD and Mac OS X. Installation details can
535 be found on wiki.strongswan.org.
537 - ipsec statusall shows the number of bytes transmitted and received over
538 ESP connections configured by the IKEv2 charon daemon.
540 - The IKEv2 charon daemon supports include files in ipsec.secrets.
546 - The configuration option --enable-integrity-test plus the strongswan.conf
547 option libstrongswan.integrity_test = yes activate integrity tests
548 of the IKE daemons charon and pluto, libstrongswan and all loaded
549 plugins. Thus dynamic library misconfigurations and non-malicious file
550 manipulations can be reliably detected.
552 - The new default setting libstrongswan.ecp_x_coordinate_only=yes allows
553 IKEv1 interoperability with MS Windows using the ECP DH groups 19 and 20.
555 - The IKEv1 pluto daemon now supports the AES-CCM and AES-GCM ESP
556 authenticated encryption algorithms.
558 - The IKEv1 pluto daemon now supports V4 OpenPGP keys.
560 - The RDN parser vulnerability discovered by Orange Labs research team
561 was not completely fixed in version 4.3.2. Some more modifications
562 had to be applied to the asn1_length() function to make it robust.
568 - The new gcrypt plugin provides symmetric cipher, hasher, RNG, Diffie-Hellman
569 and RSA crypto primitives using the LGPL licensed GNU gcrypt library.
571 - libstrongswan features an integrated crypto selftest framework for registered
572 algorithms. The test-vector plugin provides a first set of test vectors and
573 allows pluto and charon to rely on tested crypto algorithms.
575 - pluto can now use all libstrongswan plugins with the exception of x509 and xcbc.
576 Thanks to the openssl plugin, the ECP Diffie-Hellman groups 19, 20, 21, 25, and
577 26 as well as ECDSA-256, ECDSA-384, and ECDSA-521 authentication can be used
580 - Applying their fuzzing tool, the Orange Labs vulnerability research team found
581 another two DoS vulnerabilities, one in the rather old ASN.1 parser of Relative
582 Distinguished Names (RDNs) and a second one in the conversion of ASN.1 UTCTIME
583 and GENERALIZEDTIME strings to a time_t value.
589 - The nm plugin now passes DNS/NBNS server information to NetworkManager,
590 allowing a gateway administrator to set DNS/NBNS configuration on clients
593 - The nm plugin also accepts CA certificates for gateway authentication. If
594 a CA certificate is configured, strongSwan uses the entered gateway address
595 as its idenitity, requiring the gateways certificate to contain the same as
596 subjectAltName. This allows a gateway administrator to deploy the same
597 certificates to Windows 7 and NetworkManager clients.
599 - The command ipsec purgeike deletes IKEv2 SAs that don't have a CHILD SA.
600 The command ipsec down <conn>{n} deletes CHILD SA instance n of connection
601 <conn> whereas ipsec down <conn>{*} deletes all CHILD SA instances.
602 The command ipsec down <conn>[n] deletes IKE SA instance n of connection
603 <conn> plus dependent CHILD SAs whereas ipsec down <conn>[*] deletes all
604 IKE SA instances of connection <conn>.
606 - Fixed a regression introduced in 4.3.0 where EAP authentication calculated
607 the AUTH payload incorrectly. Further, the EAP-MSCHAPv2 MSK key derivation
608 has been updated to be compatible with the Windows 7 Release Candidate.
610 - Refactored installation of triggering policies. Routed policies are handled
611 outside of IKE_SAs to keep them installed in any case. A tunnel gets
612 established only once, even if initiation is delayed due network outages.
614 - Improved the handling of multiple acquire signals triggered by the kernel.
616 - Fixed two DoS vulnerabilities in the charon daemon that were discovered by
617 fuzzing techniques: 1) Sending a malformed IKE_SA_INIT request leaved an
618 incomplete state which caused a null pointer dereference if a subsequent
619 CREATE_CHILD_SA request was sent. 2) Sending an IKE_AUTH request with either
620 a missing TSi or TSr payload caused a null pointer derefence because the
621 checks for TSi and TSr were interchanged. The IKEv2 fuzzer used was
622 developed by the Orange Labs vulnerability research team. The tool was
623 initially written by Gabriel Campana and is now maintained by Laurent Butti.
625 - Added support for AES counter mode in ESP in IKEv2 using the proposal
626 keywords aes128ctr, aes192ctr and aes256ctr.
628 - Further progress in refactoring pluto: Use of the curl and ldap plugins
629 for fetching crls and OCSP. Use of the random plugin to get keying material
630 from /dev/random or /dev/urandom. Use of the openssl plugin as an alternative
631 to the aes, des, sha1, sha2, and md5 plugins. The blowfish, twofish, and
632 serpent encryption plugins are now optional and are not enabled by default.
638 - Support for the IKEv2 Multiple Authentication Exchanges extension (RFC4739).
639 Initiators and responders can use several authentication rounds (e.g. RSA
640 followed by EAP) to authenticate. The new ipsec.conf leftauth/rightauth and
641 leftauth2/rightauth2 parameters define own authentication rounds or setup
642 constraints for the remote peer. See the ipsec.conf man page for more detials.
644 - If glibc printf hooks (register_printf_function) are not available,
645 strongSwan can use the vstr string library to run on non-glibc systems.
647 - The IKEv2 charon daemon can now configure the ESP CAMELLIA-CBC cipher
648 (esp=camellia128|192|256).
650 - Refactored the pluto and scepclient code to use basic functions (memory
651 allocation, leak detective, chunk handling, printf_hooks, strongswan.conf
652 attributes, ASN.1 parser, etc.) from the libstrongswan library.
654 - Up to two DNS and WINS servers to be sent via IKEv1 ModeConfig can be
655 configured in the pluto section of strongswan.conf.
661 - The new server-side EAP RADIUS plugin (--enable-eap-radius)
662 relays EAP messages to and from a RADIUS server. Successfully
663 tested with with a freeradius server using EAP-MD5 and EAP-SIM.
665 - A vulnerability in the Dead Peer Detection (RFC 3706) code was found by
666 Gerd v. Egidy <gerd.von.egidy@intra2net.com> of Intra2net AG affecting
667 all Openswan and strongSwan releases. A malicious (or expired ISAKMP)
668 R_U_THERE or R_U_THERE_ACK Dead Peer Detection packet can cause the
669 pluto IKE daemon to crash and restart. No authentication or encryption
670 is required to trigger this bug. One spoofed UDP packet can cause the
671 pluto IKE daemon to restart and be unresponsive for a few seconds while
672 restarting. This DPD null state vulnerability has been officially
673 registered as CVE-2009-0790 and is fixed by this release.
675 - ASN.1 to time_t conversion caused a time wrap-around for
676 dates after Jan 18 03:14:07 UTC 2038 on 32-bit platforms.
677 As a workaround such dates are set to the maximum representable
678 time, i.e. Jan 19 03:14:07 UTC 2038.
680 - Distinguished Names containing wildcards (*) are not sent in the
687 - Fixed a use-after-free bug in the DPD timeout section of the
688 IKEv1 pluto daemon which sporadically caused a segfault.
690 - Fixed a crash in the IKEv2 charon daemon occurring with
691 mixed RAM-based and SQL-based virtual IP address pools.
693 - Fixed ASN.1 parsing of algorithmIdentifier objects where the
694 parameters field is optional.
696 - Ported nm plugin to NetworkManager 7.1.
702 - Support of the EAP-MSCHAPv2 protocol enabled by the option
703 --enable-eap-mschapv2. Requires the MD4 hash algorithm enabled
704 either by --enable-md4 or --enable-openssl.
706 - Assignment of up to two DNS and up to two WINS servers to peers via
707 the IKEv2 Configuration Payload (CP). The IPv4 or IPv6 nameserver
708 addresses are defined in strongswan.conf.
710 - The strongSwan applet for the Gnome NetworkManager is now built and
711 distributed as a separate tarball under the name NetworkManager-strongswan.
717 - Fixed ESP NULL encryption broken by the refactoring of keymat.c.
718 Also introduced proper initialization and disposal of keying material.
720 - Fixed the missing listing of connection definitions in ipsec statusall
721 broken by an unfortunate local variable overload.
727 - Several performance improvements to handle thousands of tunnels with almost
728 linear upscaling. All relevant data structures have been replaced by faster
729 counterparts with better lookup times.
731 - Better parallelization to run charon on multiple cores. Due to improved
732 ressource locking and other optimizations the daemon can take full
733 advantage of 16 or even more cores.
735 - The load-tester plugin can use a NULL Diffie-Hellman group and simulate
736 unique identities and certificates by signing peer certificates using a CA
739 - The redesigned stroke in-memory IP pool handles leases. The "ipsec leases"
740 command queries assigned leases.
742 - Added support for smartcards in charon by using the ENGINE API provided by
743 OpenSSL, based on patches by Michael Roßberg.
745 - The Padlock plugin supports the hardware RNG found on VIA CPUs to provide a
746 reliable source of randomness.
751 - Flexible configuration of logging subsystem allowing to log to multiple
752 syslog facilities or to files using fine-grained log levels for each target.
754 - Load testing plugin to do stress testing of the IKEv2 daemon against self
755 or another host. Found and fixed issues during tests in the multi-threaded
756 use of the OpenSSL plugin.
758 - Added profiling code to synchronization primitives to find bottlenecks if
759 running on multiple cores. Found and fixed an issue where parts of the
760 Diffie-Hellman calculation acquired an exclusive lock. This greatly improves
761 parallelization to multiple cores.
763 - updown script invocation has been separated into a plugin of its own to
764 further slim down the daemon core.
766 - Separated IKE_SA/CHILD_SA key derivation process into a closed system,
767 allowing future implementations to use a secured environment in e.g. kernel
770 - The kernel interface of charon has been modularized. XFRM NETLINK (default)
771 and PFKEY (--enable-kernel-pfkey) interface plugins for the native IPsec
772 stack of the Linux 2.6 kernel as well as a PFKEY interface for the KLIPS
773 IPsec stack (--enable-kernel-klips) are provided.
775 - Basic Mobile IPv6 support has been introduced, securing Binding Update
776 messages as well as tunneled traffic between Mobile Node and Home Agent.
777 The installpolicy=no option allows peaceful cooperation with a dominant
778 mip6d daemon and the new type=transport_proxy implements the special MIPv6
779 IPsec transport proxy mode where the IKEv2 daemon uses the Care-of-Address
780 but the IPsec SA is set up for the Home Address.
782 - Implemented migration of Mobile IPv6 connections using the KMADDRESS
783 field contained in XFRM_MSG_MIGRATE messages sent by the mip6d daemon
784 via the Linux 2.6.28 (or appropriately patched) kernel.
790 - IKEv2 charon daemon supports authentication based on raw public keys
791 stored in the SQL database backend. The ipsec listpubkeys command
792 lists the available raw public keys via the stroke interface.
794 - Several MOBIKE improvements: Detect changes in NAT mappings in DPD exchanges,
795 handle events if kernel detects NAT mapping changes in UDP-encapsulated
796 ESP packets (requires kernel patch), reuse old addesses in MOBIKE updates as
797 long as possible and other fixes.
799 - Fixed a bug in addr_in_subnet() which caused insertion of wrong source
800 routes for destination subnets having netwmasks not being a multiple of 8 bits.
801 Thanks go to Wolfgang Steudel, TU Ilmenau for reporting this bug.
807 - Fixed a Denial-of-Service vulnerability where an IKE_SA_INIT message with
808 a KE payload containing zeroes only can cause a crash of the IKEv2 charon
809 daemon due to a NULL pointer returned by the mpz_export() function of the
810 GNU Multiprecision Library (GMP). Thanks go to Mu Dynamics Research Labs
811 for making us aware of this problem.
813 - The new agent plugin provides a private key implementation on top of an
816 - The NetworkManager plugin has been extended to support certificate client
817 authentication using RSA keys loaded from a file or using ssh-agent.
819 - Daemon capability dropping has been ported to libcap and must be enabled
820 explicitly --with-capabilities=libcap. Future version will support the
821 newer libcap2 library.
823 - ipsec listalgs lists the IKEv2 cryptografic algorithms registered with the
824 charon keying daemon.
830 - A NetworkManager plugin allows GUI-based configuration of road-warrior
831 clients in a simple way. It features X509 based gateway authentication
832 and EAP client authentication, tunnel setup/teardown and storing passwords
833 in the Gnome Keyring.
835 - A new EAP-GTC plugin implements draft-sheffer-ikev2-gtc-00.txt and allows
836 username/password authentication against any PAM service on the gateway.
837 The new EAP method interacts nicely with the NetworkManager plugin and allows
838 client authentication against e.g. LDAP.
840 - Improved support for the EAP-Identity method. The new ipsec.conf eap_identity
841 parameter defines an additional identity to pass to the server in EAP
844 - The "ipsec statusall" command now lists CA restrictions, EAP
845 authentication types and EAP identities.
847 - Fixed two multithreading deadlocks occurring when starting up
848 several hundred tunnels concurrently.
850 - Fixed the --enable-integrity-test configure option which
851 computes a SHA-1 checksum over the libstrongswan library.
857 - Consistent logging of IKE and CHILD SAs at the audit (AUD) level.
859 - Improved the performance of the SQL-based virtual IP address pool
860 by introducing an additional addresses table. The leases table
861 storing only history information has become optional and can be
862 disabled by setting charon.plugins.sql.lease_history = no in
865 - The XFRM_STATE_AF_UNSPEC flag added to xfrm.h allows IPv4-over-IPv6
866 and IPv6-over-IPv4 tunnels with the 2.6.26 and later Linux kernels.
868 - management of different virtual IP pools for different
869 network interfaces have become possible.
871 - fixed a bug which prevented the assignment of more than 256
872 virtual IP addresses from a pool managed by an sql database.
874 - fixed a bug which did not delete own IPCOMP SAs in the kernel.
880 - Added statistics functions to ipsec pool --status and ipsec pool --leases
881 and input validation checks to various ipsec pool commands.
883 - ipsec statusall now lists all loaded charon plugins and displays
884 the negotiated IKEv2 cipher suite proposals.
886 - The openssl plugin supports the elliptic curve Diffie-Hellman groups
887 19, 20, 21, 25, and 26.
889 - The openssl plugin supports ECDSA authentication using elliptic curve
892 - Fixed a bug in stroke which caused multiple charon threads to close
893 the file descriptors during packet transfers over the stroke socket.
895 - ESP sequence numbers are now migrated in IPsec SA updates handled by
896 MOBIKE. Works only with Linux kernels >= 2.6.17.
902 - Fixed the strongswan.conf path configuration problem that occurred when
903 --sysconfig was not set explicitly in ./configure.
905 - Fixed a number of minor bugs that where discovered during the 4th
906 IKEv2 interoperability workshop in San Antonio, TX.
912 - Plugins for libstrongswan and charon can optionally be loaded according
913 to a configuration in strongswan.conf. Most components provide a
914 "load = " option followed by a space separated list of plugins to load.
915 This allows e.g. the fallback from a hardware crypto accelerator to
916 to software-based crypto plugins.
918 - Charons SQL plugin has been extended by a virtual IP address pool.
919 Configurations with a rightsourceip=%poolname setting query a SQLite or
920 MySQL database for leases. The "ipsec pool" command helps in administrating
921 the pool database. See ipsec pool --help for the available options
923 - The Authenticated Encryption Algorithms AES-CCM-8/12/16 and AES-GCM-8/12/16
924 for ESP are now supported starting with the Linux 2.6.25 kernel. The
925 syntax is e.g. esp=aes128ccm12 or esp=aes256gcm16.
931 - Support for "Hash and URL" encoded certificate payloads has been implemented
932 in the IKEv2 daemon charon. Using the "certuribase" option of a CA section
933 allows to assign a base URL to all certificates issued by the specified CA.
934 The final URL is then built by concatenating that base and the hex encoded
935 SHA1 hash of the DER encoded certificate. Note that this feature is disabled
936 by default and must be enabled using the option "charon.hash_and_url".
938 - The IKEv2 daemon charon now supports the "uniqueids" option to close multiple
939 IKE_SAs with the same peer. The option value "keep" prefers existing
940 connection setups over new ones, where the value "replace" replaces existing
943 - The crypto factory in libstrongswan additionally supports random number
944 generators, plugins may provide other sources of randomness. The default
945 plugin reads raw random data from /dev/(u)random.
947 - Extended the credential framework by a caching option to allow plugins
948 persistent caching of fetched credentials. The "cachecrl" option has been
951 - The new trustchain verification introduced in 4.2.0 has been parallelized.
952 Threads fetching CRL or OCSP information no longer block other threads.
954 - A new IKEv2 configuration attribute framework has been introduced allowing
955 plugins to provide virtual IP addresses, and in the future, other
956 configuration attribute services (e.g. DNS/WINS servers).
958 - The stroke plugin has been extended to provide virtual IP addresses from
959 a pool defined in ipsec.conf. The "rightsourceip" parameter now accepts
960 address pools in CIDR notation (e.g. 10.1.1.0/24). The parameter also accepts
961 the value "%poolname", where "poolname" identifies a pool provided by a
964 - Fixed compilation on uClibc and a couple of other minor bugs.
966 - Set DPD defaults in ipsec starter to dpd_delay=30s and dpd_timeout=150s.
968 - The IKEv1 pluto daemon now supports the ESP encryption algorithm CAMELLIA
969 with key lengths of 128, 192, and 256 bits, as well as the authentication
970 algorithm AES_XCBC_MAC. Configuration example: esp=camellia192-aesxcbc.
976 - libstrongswan has been modularized to attach crypto algorithms,
977 credential implementations (keys, certificates) and fetchers dynamically
978 through plugins. Existing code has been ported to plugins:
979 - RSA/Diffie-Hellman implementation using the GNU Multi Precision library
980 - X509 certificate system supporting CRLs, OCSP and attribute certificates
981 - Multiple plugins providing crypto algorithms in software
982 - CURL and OpenLDAP fetcher
984 - libstrongswan gained a relational database API which uses pluggable database
985 providers. Plugins for MySQL and SQLite are available.
987 - The IKEv2 keying daemon charon is more extensible. Generic plugins may provide
988 connection configuration, credentials and EAP methods or control the daemon.
989 Existing code has been ported to plugins:
990 - EAP-AKA, EAP-SIM, EAP-MD5 and EAP-Identity
991 - stroke configuration, credential and control (compatible to pluto)
992 - XML bases management protocol to control and query the daemon
993 The following new plugins are available:
994 - An experimental SQL configuration, credential and logging plugin on
995 top of either MySQL or SQLite
996 - A unit testing plugin to run tests at daemon startup
998 - The authentication and credential framework in charon has been heavily
999 refactored to support modular credential providers, proper
1000 CERTREQ/CERT payload exchanges and extensible authorization rules.
1002 - The framework of strongSwan Manager has envolved to the web application
1003 framework libfast (FastCGI Application Server w/ Templates) and is usable
1004 by other applications.
1010 - IKE rekeying in NAT situations did not inherit the NAT conditions
1011 to the rekeyed IKE_SA so that the UDP encapsulation was lost with
1012 the next CHILD_SA rekeying.
1014 - Wrong type definition of the next_payload variable in id_payload.c
1015 caused an INVALID_SYNTAX error on PowerPC platforms.
1017 - Implemented IKEv2 EAP-SIM server and client test modules that use
1018 triplets stored in a file. For details on the configuration see
1019 the scenario 'ikev2/rw-eap-sim-rsa'.
1025 - Fixed error in the ordering of the certinfo_t records in the ocsp cache that
1026 caused multiple entries of the same serial number to be created.
1028 - Implementation of a simple EAP-MD5 module which provides CHAP
1029 authentication. This may be interesting in conjunction with certificate
1030 based server authentication, as weak passwords can't be brute forced
1031 (in contradiction to traditional IKEv2 PSK).
1033 - A complete software based implementation of EAP-AKA, using algorithms
1034 specified in 3GPP2 (S.S0055). This implementation does not use an USIM,
1035 but reads the secrets from ipsec.secrets. Make sure to read eap_aka.h
1038 - Support for vendor specific EAP methods using Expanded EAP types. The
1039 interface to EAP modules has been slightly changed, so make sure to
1040 check the changes if you're already rolling your own modules.
1046 - The default _updown script now dynamically inserts and removes ip6tables
1047 firewall rules if leftfirewall=yes is set in IPv6 connections. New IPv6
1048 net-net and roadwarrior (PSK/RSA) scenarios for both IKEv1 and IKEV2 were
1051 - Implemented RFC4478 repeated authentication to force EAP/Virtual-IP clients
1052 to reestablish an IKE_SA within a given timeframe.
1054 - strongSwan Manager supports configuration listing, initiation and termination
1055 of IKE and CHILD_SAs.
1057 - Fixes and improvements to multithreading code.
1059 - IKEv2 plugins have been renamed to libcharon-* to avoid naming conflicts.
1060 Make sure to remove the old plugins in $libexecdir/ipsec, otherwise they get
1067 - Removed recursive pthread mutexes since uClibc doesn't support them.
1073 - In NAT traversal situations and multiple queued Quick Modes,
1074 those pending connections inserted by auto=start after the
1075 port floating from 500 to 4500 were erronously deleted.
1077 - Added a "forceencaps" connection parameter to enforce UDP encapsulation
1078 to surmount restrictive firewalls. NAT detection payloads are faked to
1079 simulate a NAT situation and trick the other peer into NAT mode (IKEv2 only).
1081 - Preview of strongSwan Manager, a web based configuration and monitoring
1082 application. It uses a new XML control interface to query the IKEv2 daemon
1083 (see http://wiki.strongswan.org/wiki/Manager).
1085 - Experimental SQLite configuration backend which will provide the configuration
1086 interface for strongSwan Manager in future releases.
1088 - Further improvements to MOBIKE support.
1094 - Since some third party IKEv2 implementations run into
1095 problems with strongSwan announcing MOBIKE capability per
1096 default, MOBIKE can be disabled on a per-connection-basis
1097 using the mobike=no option. Whereas mobike=no disables the
1098 sending of the MOBIKE_SUPPORTED notification and the floating
1099 to UDP port 4500 with the IKE_AUTH request even if no NAT
1100 situation has been detected, strongSwan will still support
1101 MOBIKE acting as a responder.
1103 - the default ipsec routing table plus its corresponding priority
1104 used for inserting source routes has been changed from 100 to 220.
1105 It can be configured using the --with-ipsec-routing-table and
1106 --with-ipsec-routing-table-prio options.
1108 - the --enable-integrity-test configure option tests the
1109 integrity of the libstrongswan crypto code during the charon
1112 - the --disable-xauth-vid configure option disables the sending
1113 of the XAUTH vendor ID. This can be used as a workaround when
1114 interoperating with some Windows VPN clients that get into
1115 trouble upon reception of an XAUTH VID without eXtended
1116 AUTHentication having been configured.
1118 - ipsec stroke now supports the rereadsecrets, rereadaacerts,
1119 rereadacerts, and listacerts options.
1125 - If a DNS lookup failure occurs when resolving right=%<FQDN>
1126 or right=<FQDN> combined with rightallowany=yes then the
1127 connection is not updated by ipsec starter thus preventing
1128 the disruption of an active IPsec connection. Only if the DNS
1129 lookup successfully returns with a changed IP address the
1130 corresponding connection definition is updated.
1132 - Routes installed by the keying daemons are now in a separate
1133 routing table with the ID 100 to avoid conflicts with the main
1134 table. Route lookup for IKEv2 traffic is done in userspace to ignore
1135 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
1141 - The pluto IKEv1 daemon now exhibits the same behaviour as its
1142 IKEv2 companion charon by inserting an explicit route via the
1143 _updown script only if a sourceip exists. This is admissible
1144 since routing through the IPsec tunnel is handled automatically
1145 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
1146 parameter is not required any more.
1148 - The new IKEv1 parameter right|leftallowany parameters helps to handle
1149 the case where both peers possess dynamic IP addresses that are
1150 usually resolved using DynDNS or a similar service. The configuration
1155 can be used by the initiator to start up a connection to a peer
1156 by resolving peer.foo.bar into the currently allocated IP address.
1157 Thanks to the rightallowany flag the connection behaves later on
1162 so that the peer can rekey the connection as an initiator when his
1163 IP address changes. An alternative notation is
1167 which will implicitly set rightallowany=yes.
1169 - ipsec starter now fails more gracefully in the presence of parsing
1170 errors. Flawed ca and conn section are discarded and pluto is started
1171 if non-fatal errors only were encountered. If right=%peer.foo.bar
1172 cannot be resolved by DNS then right=%any will be used so that passive
1173 connections as a responder are still possible.
1175 - The new pkcs11initargs parameter that can be placed in the
1176 setup config section of /etc/ipsec.conf allows the definition
1177 of an argument string that is used with the PKCS#11 C_Initialize()
1178 function. This non-standard feature is required by the NSS softoken
1179 library. This patch was contributed by Robert Varga.
1181 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
1182 which caused a segmentation fault in the presence of unknown
1183 or misspelt keywords in ipsec.conf. This bug fix was contributed
1186 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
1187 address configuration changes and updates IKE and IPsec SAs dynamically.
1193 - IKEv2 peer configuration selection now can be based on a given
1194 certification authority using the rightca= statement.
1196 - IKEv2 authentication based on RSA signatures now can handle multiple
1197 certificates issued for a given peer ID. This allows a smooth transition
1198 in the case of a peer certificate renewal.
1200 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
1201 client and returning requested virtual IPs using rightsourceip=%config
1202 on the server. If the server does not support configuration payloads, the
1203 client enforces its leftsourceip parameter.
1205 - The ./configure options --with-uid/--with-gid allow pluto and charon
1206 to drop their privileges to a minimum and change to an other UID/GID. This
1207 improves the systems security, as a possible intruder may only get the
1208 CAP_NET_ADMIN capability.
1210 - Further modularization of charon: Pluggable control interface and
1211 configuration backend modules provide extensibility. The control interface
1212 for stroke is included, and further interfaces using DBUS (NetworkManager)
1213 or XML are on the way. A backend for storing configurations in the daemon
1214 is provided and more advanced backends (using e.g. a database) are trivial
1217 - Fixed a compilation failure in libfreeswan occurring with Linux kernel
1224 - Support for an additional Diffie-Hellman exchange when creating/rekeying
1225 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
1226 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
1227 is implemented properly for rekeying.
1229 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
1230 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
1232 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
1234 - Added support for EAP modules which do not establish an MSK.
1236 - Removed the dependencies from the /usr/include/linux/ headers by
1237 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
1239 - crlNumber is now listed by ipsec listcrls
1241 - The xauth_modules.verify_secret() function now passes the
1248 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
1249 cookies are enabled and protect against DoS attacks with faked source
1250 addresses. Number of IKE_SAs in CONNECTING state is also limited per
1251 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
1252 compared to properly detect retransmissions and incoming retransmits are
1253 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
1255 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
1256 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
1257 enabled by cachecrls=yes.
1259 - Added the configuration options --enable-nat-transport which enables
1260 the potentially insecure NAT traversal for IPsec transport mode and
1261 --disable-vendor-id which disables the sending of the strongSwan
1264 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
1265 a segmentation fault if a malformed payload was detected in the
1266 IKE MR2 message and pluto tried to send an encrypted notification
1269 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
1270 with Windows 2003 Server which uses a wrong VID hash.
1276 - Support of SHA2_384 hash function for protecting IKEv1
1277 negotiations and support of SHA2 signatures in X.509 certificates.
1279 - Fixed a serious bug in the computation of the SHA2-512 HMAC
1280 function. Introduced automatic self-test of all IKEv1 hash
1281 and hmac functions during pluto startup. Failure of a self-test
1282 currently issues a warning only but does not exit pluto [yet].
1284 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
1286 - Full support of CA information sections. ipsec listcainfos
1287 now shows all collected crlDistributionPoints and OCSP
1290 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
1291 This feature requires the HTTP fetching capabilities of the libcurl
1292 library which must be enabled by setting the --enable-http configure
1295 - Refactored core of the IKEv2 message processing code, allowing better
1296 code reuse and separation.
1298 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
1299 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
1300 by the requestor and installed in a resolv.conf file.
1302 - The IKEv2 daemon charon installs a route for each IPsec policy to use
1303 the correct source address even if an application does not explicitly
1306 - Integrated the EAP framework into charon which loads pluggable EAP library
1307 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
1308 on the client side, while the "eap" parameter on the server side defines
1309 the EAP method to use for client authentication.
1310 A generic client side EAP-Identity module and an EAP-SIM authentication
1311 module using a third party card reader implementation are included.
1313 - Added client side support for cookies.
1315 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
1316 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
1317 fixes to enhance interoperability with other implementations.
1323 - strongSwan now interoperates with the NCP Secure Entry Client,
1324 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
1325 XAUTH and Mode Config.
1327 - UNITY attributes are now recognized and UNITY_BANNER is set
1328 to a default string.
1334 - IKEv1: Support for extended authentication (XAUTH) in combination
1335 with ISAKMP Main Mode RSA or PSK authentication. Both client and
1336 server side were implemented. Handling of user credentials can
1337 be done by a run-time loadable XAUTH module. By default user
1338 credentials are stored in ipsec.secrets.
1340 - IKEv2: Support for reauthentication when rekeying
1342 - IKEv2: Support for transport mode
1344 - fixed a lot of bugs related to byte order
1346 - various other bugfixes
1352 - IKEv1: Implementation of ModeConfig push mode via the new connection
1353 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
1355 - IKEv1: The command ipsec statusall now shows "DPD active" for all
1356 ISAKMP SAs that are under active Dead Peer Detection control.
1358 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
1359 Instead of logger, special printf() functions are used to directly
1360 print objects like hosts (%H) identifications (%D), certificates (%Q),
1361 etc. The number of debugging levels have been reduced to:
1363 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
1365 The debugging levels can either be specified statically in ipsec.conf as
1368 charondebug="lib 1, cfg 3, net 2"
1370 or changed at runtime via stroke as
1372 ipsec stroke loglevel cfg 2
1378 - Implemented full support for IPv6-in-IPv6 tunnels.
1380 - Added configuration options for dead peer detection in IKEv2. dpd_action
1381 types "clear", "hold" and "restart" are supported. The dpd_timeout
1382 value is not used, as the normal retransmission policy applies to
1383 detect dead peers. The dpd_delay parameter enables sending of empty
1384 informational message to detect dead peers in case of inactivity.
1386 - Added support for preshared keys in IKEv2. PSK keys configured in
1387 ipsec.secrets are loaded. The authby parameter specifies the authentication
1388 method to authentificate ourself, the other peer may use PSK or RSA.
1390 - Changed retransmission policy to respect the keyingtries parameter.
1392 - Added private key decryption. PEM keys encrypted with AES-128/192/256
1393 or 3DES are supported.
1395 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
1396 encrypt IKE traffic.
1398 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
1399 signed with such a hash algorithm.
1401 - Added initial support for updown scripts. The actions up-host/client and
1402 down-host/client are executed. The leftfirewall=yes parameter
1403 uses the default updown script to insert dynamic firewall rules, a custom
1404 updown script may be specified with the leftupdown parameter.
1410 - Added support for the auto=route ipsec.conf parameter and the
1411 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
1412 CHILD_SAs dynamically on demand when traffic is detected by the
1415 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
1416 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
1417 new keys are generated using perfect forward secrecy. An optional flag
1418 which enforces reauthentication will be implemented later.
1420 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
1421 algorithm configuration statements.
1427 - Full X.509 certificate trust chain verification has been implemented.
1428 End entity certificates can be exchanged via CERT payloads. The current
1429 default is leftsendcert=always, since CERTREQ payloads are not supported
1430 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
1432 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
1433 would offer more possibilities for traffic selection, but the Linux kernel
1434 currently does not support it. That's why we stick with these simple
1435 ipsec.conf rules for now.
1437 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
1438 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
1441 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
1442 notify payloads to detect NAT routers between the peers. It switches
1443 to port 4500, uses UDP encapsulated ESP packets, handles peer address
1444 changes gracefully and sends keep alive message periodically.
1446 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
1447 rekeying, more shared code, cleaner design, proper retransmission
1448 and a more extensible code base.
1450 - The mixed PSK/RSA roadwarrior detection capability introduced by the
1451 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
1452 payloads by the responder right before any defined IKE Main Mode state had
1453 been established. Although any form of bad proposal syntax was being correctly
1454 detected by the payload parser, the subsequent error handler didn't check
1455 the state pointer before logging current state information, causing an
1456 immediate crash of the pluto keying daemon due to a NULL pointer.
1462 - Added algorithm selection to charon: New default algorithms for
1463 ike=aes128-sha-modp2048, as both daemons support it. The default
1464 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
1465 the ike/esp parameter the same way as pluto. As this syntax does
1466 not allow specification of a pseudo random function, the same
1467 algorithm as for integrity is used (currently sha/md5). Supported
1469 Encryption: aes128, aes192, aes256
1470 Integrity/PRF: md5, sha (using hmac)
1471 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
1473 Encryption: aes128, aes192, aes256, 3des, blowfish128,
1474 blowfish192, blowfish256
1475 Integrity: md5, sha1
1476 More IKE encryption algorithms will come after porting libcrypto into
1479 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
1480 perfect forward secrecy is used. The rekeying parameters rekey,
1481 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
1482 when using IKEv2. WARNING: charon currently is unable to handle
1483 simultaneous rekeying. To avoid such a situation, use a large
1484 rekeyfuzz, or even better, set rekey=no on one peer.
1486 - support for host2host, net2net, host2net (roadwarrior) tunnels
1487 using predefined RSA certificates (see uml scenarios for
1488 configuration examples).
1490 - new build environment featuring autotools. Features such
1491 as HTTP, LDAP and smartcard support may be enabled using
1492 the ./configure script. Changing install directories
1493 is possible, too. See ./configure --help for more details.
1495 - better integration of charon with ipsec starter, which allows
1496 (almost) transparent operation with both daemons. charon
1497 handles ipsec commands up, down, status, statusall, listall,
1498 listcerts and allows proper load, reload and delete of connections
1505 - initial support of the IKEv2 protocol. Connections in
1506 ipsec.conf designated by keyexchange=ikev2 are negotiated
1507 by the new IKEv2 charon keying daemon whereas those marked
1508 by keyexchange=ikev1 or the default keyexchange=ike are
1509 handled thy the IKEv1 pluto keying daemon. Currently only
1510 a limited subset of functions are available with IKEv2
1511 (Default AES encryption, authentication based on locally
1512 imported X.509 certificates, unencrypted private RSA keys
1513 in PKCS#1 file format, limited functionality of the ipsec
1520 - the dynamic iptables rules from the _updown_x509 template
1521 for KLIPS and the _updown_policy template for NETKEY have
1522 been merged into the default _updown script. The existing
1523 left|rightfirewall keyword causes the automatic insertion
1524 and deletion of ACCEPT rules for tunneled traffic upon
1525 the successful setup and teardown of an IPsec SA, respectively.
1526 left|rightfirwall can be used with KLIPS under any Linux 2.4
1527 kernel or with NETKEY under a Linux kernel version >= 2.6.16
1528 in conjunction with iptables >= 1.3.5. For NETKEY under a Linux
1529 kernel version < 2.6.16 which does not support IPsec policy
1530 matching yet, please continue to use a copy of the _updown_espmark
1531 template loaded via the left|rightupdown keyword.
1533 - a new left|righthostaccess keyword has been introduced which
1534 can be used in conjunction with left|rightfirewall and the
1535 default _updown script. By default leftfirewall=yes inserts
1536 a bi-directional iptables FORWARD rule for a local client network
1537 with a netmask different from 255.255.255.255 (single host).
1538 This does not allow to access the VPN gateway host via its
1539 internal network interface which is part of the client subnet
1540 because an iptables INPUT and OUTPUT rule would be required.
1541 lefthostaccess=yes will cause this additional ACCEPT rules to
1544 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
1545 payload is preparsed in order to find out whether the roadwarrior
1546 requests PSK or RSA so that a matching connection candidate can
1553 - the new _updown_policy template allows ipsec policy based
1554 iptables firewall rules. Required are iptables version
1555 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
1556 the _updown_espmark template, so that no INPUT mangle rules
1557 are required any more.
1559 - added support of DPD restart mode
1561 - ipsec starter now allows the use of wildcards in include
1562 statements as e.g. in "include /etc/my_ipsec/*.conf".
1563 Patch courtesy of Matthias Haas.
1565 - the Netscape OID 'employeeNumber' is now recognized and can be
1566 used as a Relative Distinguished Name in certificates.
1572 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
1573 command and not of ipsec setup any more.
1575 - ipsec starter now supports AH authentication in conjunction with
1576 ESP encryption. AH authentication is configured in ipsec.conf
1577 via the auth=ah parameter.
1579 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
1580 ipsec whack --scencrypt|scdecrypt <args>.
1582 - get_sa_info() now determines for the native netkey IPsec stack
1583 the exact time of the last use of an active eroute. This information
1584 is used by the Dead Peer Detection algorithm and is also displayed by
1585 the ipsec status command.
1591 - running under the native Linux 2.6 IPsec stack, the function
1592 get_sa_info() is called by ipsec auto --status to display the current
1593 number of transmitted bytes per IPsec SA.
1595 - get_sa_info() is also used by the Dead Peer Detection process to detect
1596 recent ESP activity. If ESP traffic was received from the peer within
1597 the last dpd_delay interval then no R_Y_THERE notification must be sent.
1599 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
1600 in ID_DER_ASN1_DN identities. The following notations are possible:
1602 rightid="unstructuredName=John Doe"
1603 rightid="UN=John Doe"
1605 - fixed a long-standing bug which caused PSK-based roadwarrior connections
1606 to segfault in the function id.c:same_id() called by keys.c:get_secret()
1607 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
1614 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
1616 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
1618 - in order to guarantee backwards-compatibility with the script-based
1619 auto function (e.g. auto --replace), the ipsec starter scripts stores
1620 the defaultroute information in the temporary file /var/run/ipsec.info.
1622 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
1623 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
1626 - the ipsec starter now also recognizes the parameters authby=never and
1627 type=passthrough|pass|drop|reject.
1633 - ipsec starter now supports the also parameter which allows
1634 a modular structure of the connection definitions. Thus
1635 "ipsec start" is now ready to replace "ipsec setup".
1641 - Mathieu Lafon's popular ipsec starter tool has been added to the
1642 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
1643 for his integration work. ipsec starter is a C program which is going
1644 to replace the various shell and awk starter scripts (setup, _plutoload,
1645 _plutostart, _realsetup, _startklips, _confread, and auto). Since
1646 ipsec.conf is now parsed only once, the starting of multiple tunnels is
1647 accelerated tremedously.
1649 - Added support of %defaultroute to the ipsec starter. If the IP address
1650 changes, a HUP signal to the ipsec starter will automatically
1651 reload pluto's connections.
1653 - moved most compile time configurations from pluto/Makefile to
1654 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
1655 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
1657 - removed the ipsec verify and ipsec newhostkey commands
1659 - fixed some 64-bit issues in formatted print statements
1661 - The scepclient functionality implementing the Simple Certificate
1662 Enrollment Protocol (SCEP) is nearly complete but hasn't been
1669 - CA certicates are now automatically loaded from a smartcard
1670 or USB crypto token and appear in the ipsec auto --listcacerts
1677 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
1678 library that does not support the C_Encrypt() Cryptoki
1679 function (e.g. OpenSC), the RSA encryption is done in
1680 software using the public key fetched from the smartcard.
1682 - The scepclient function now allows to define the
1683 validity of a self-signed certificate using the --days,
1684 --startdate, and --enddate options. The default validity
1685 has been changed from one year to five years.
1691 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
1692 interface to other applications for RSA encryption and decryption
1693 via the whack interface. Notation:
1695 ipsec whack --scencrypt <data>
1696 [--inbase 16|hex|64|base64|256|text|ascii]
1697 [--outbase 16|hex|64|base64|256|text|ascii]
1700 ipsec whack --scdecrypt <data>
1701 [--inbase 16|hex|64|base64|256|text|ascii]
1702 [--outbase 16|hex|64|base64|256|text|ascii]
1705 The default setting for inbase and outbase is hex.
1707 The new proxy interface can be used for securing symmetric
1708 encryption keys required by the cryptoloop or dm-crypt
1709 disk encryption schemes, especially in the case when
1710 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
1713 - if the file /etc/ipsec.secrets is lacking during the startup of
1714 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
1715 containing a 2048 bit RSA private key and a matching self-signed
1716 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
1717 is automatically generated by calling the function
1719 ipsec scepclient --out pkcs1 --out cert-self
1721 scepclient was written by Jan Hutter and Martin Willi, students
1722 at the University of Applied Sciences in Rapperswil, Switzerland.
1728 - the current extension of the PKCS#7 framework introduced
1729 a parsing error in PKCS#7 wrapped X.509 certificates that are
1730 e.g. transmitted by Windows XP when multi-level CAs are used.
1731 the parsing syntax has been fixed.
1733 - added a patch by Gerald Richter which tolerates multiple occurrences
1734 of the ipsec0 interface when using KLIPS.
1740 - with gawk-3.1.4 the word "default2 has become a protected
1741 keyword for use in switch statements and cannot be used any
1742 more in the strongSwan scripts. This problem has been
1743 solved by renaming "default" to "defaults" and "setdefault"
1744 in the scripts _confread and auto, respectively.
1746 - introduced the parameter leftsendcert with the values
1748 always|yes (the default, always send a cert)
1749 ifasked (send the cert only upon a cert request)
1750 never|no (never send a cert, used for raw RSA keys and
1753 - fixed the initialization of the ESP key length to a default of
1754 128 bits in the case that the peer does not send a key length
1755 attribute for AES encryption.
1757 - applied Herbert Xu's uniqueIDs patch
1759 - applied Herbert Xu's CLOEXEC patches
1765 - CRLs can now be cached also in the case when the issuer's
1766 certificate does not contain a subjectKeyIdentifier field.
1767 In that case the subjectKeyIdentifier is computed by pluto as the
1768 160 bit SHA-1 hash of the issuer's public key in compliance
1769 with section 4.2.1.2 of RFC 3280.
1771 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
1772 not only multiple Quick Modes of a given connection but also
1773 multiple connections between two security gateways.
1779 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
1780 installed either by setting auto=route in ipsec.conf or by
1781 a connection put into hold, generates an XFRM_AQUIRE event
1782 for each packet that wants to use the not-yet exisiting
1783 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
1784 the Quick Mode queue, causing multiple IPsec SA to be
1785 established in rapid succession. Starting with strongswan-2.5.1
1786 only a single IPsec SA is established per host-pair connection.
1788 - Right after loading the PKCS#11 module, all smartcard slots are
1789 searched for certificates. The result can be viewed using
1792 ipsec auto --listcards
1794 The certificate objects found in the slots are numbered
1795 starting with #1, #2, etc. This position number can be used to address
1796 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
1797 in ipsec.conf and ipsec.secrets, respectively:
1799 %smartcard (selects object #1)
1800 %smartcard#1 (selects object #1)
1801 %smartcard#3 (selects object #3)
1803 As an alternative the existing retrieval scheme can be used:
1805 %smartcard:45 (selects object with id=45)
1806 %smartcard0 (selects first object in slot 0)
1807 %smartcard4:45 (selects object in slot 4 with id=45)
1809 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
1810 private key flags either C_Sign() or C_Decrypt() is used
1811 to generate a signature.
1813 - The output buffer length parameter siglen in C_Sign()
1814 is now initialized to the actual size of the output
1815 buffer prior to the function call. This fixes the
1816 CKR_BUFFER_TOO_SMALL error that could occur when using
1817 the OpenSC PKCS#11 module.
1819 - Changed the initialization of the PKCS#11 CK_MECHANISM in
1820 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
1822 - Refactored the RSA public/private key code and transferred it
1823 from keys.c to the new pkcs1.c file as a preparatory step
1824 towards the release of the SCEP client.
1830 - The loading of a PKCS#11 smartcard library module during
1831 runtime does not require OpenSC library functions any more
1832 because the corresponding code has been integrated into
1833 smartcard.c. Also the RSAREF pkcs11 header files have been
1834 included in a newly created pluto/rsaref directory so that
1835 no external include path has to be defined any longer.
1837 - A long-awaited feature has been implemented at last:
1838 The local caching of CRLs fetched via HTTP or LDAP, activated
1839 by the parameter cachecrls=yes in the config setup section
1840 of ipsec.conf. The dynamically fetched CRLs are stored under
1841 a unique file name containing the issuer's subjectKeyID
1842 in /etc/ipsec.d/crls.
1844 - Applied a one-line patch courtesy of Michael Richardson
1845 from the Openswan project which fixes the kernel-oops
1846 in KLIPS when an snmp daemon is running on the same box.
1852 - Eliminated null length CRL distribution point strings.
1854 - Fixed a trust path evaluation bug introduced with 2.4.3
1860 - Improved the joint OCSP / CRL revocation policy.
1861 OCSP responses have precedence over CRL entries.
1863 - Introduced support of CRLv2 reason codes.
1865 - Fixed a bug with key-pad equipped readers which caused
1866 pluto to prompt for the pin via the console when the first
1867 occasion to enter the pin via the key-pad was missed.
1869 - When pluto is built with LDAP_V3 enabled, the library
1870 liblber required by newer versions of openldap is now
1877 - Added the _updown_espmark template which requires all
1878 incoming ESP traffic to be marked with a default mark
1881 - Introduced the pkcs11keepstate parameter in the config setup
1882 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
1883 session and login states are kept as long as possible during
1884 the lifetime of pluto. This means that a PIN entry via a key
1885 pad has to be done only once.
1887 - Introduced the pkcs11module parameter in the config setup
1888 section of ipsec.conf which specifies the PKCS#11 module
1889 to be used with smart cards. Example:
1891 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
1893 - Added support of smartcard readers equipped with a PIN pad.
1895 - Added patch by Jay Pfeifer which detects when netkey
1896 modules have been statically built into the Linux 2.6 kernel.
1898 - Added two patches by Herbert Xu. The first uses ip xfrm
1899 instead of setkey to flush the IPsec policy database. The
1900 second sets the optional flag in inbound IPComp SAs only.
1902 - Applied Ulrich Weber's patch which fixes an interoperability
1903 problem between native IPsec and KLIPS systems caused by
1904 setting the replay window to 32 instead of 0 for ipcomp.
1910 - Fixed a bug which caused an unwanted Mode Config request
1911 to be initiated in the case where "right" was used to denote
1912 the local side in ipsec.conf and "left" the remote side,
1913 contrary to the recommendation that "right" be remote and
1920 - updated Vendor ID to strongSwan-2.4.0
1922 - updated copyright statement to include David Buechi and
1929 - strongSwan now communicates with attached smartcards and
1930 USB crypto tokens via the standardized PKCS #11 interface.
1931 By default the OpenSC library from www.opensc.org is used
1932 but any other PKCS#11 library could be dynamically linked.
1933 strongSwan's PKCS#11 API was implemented by David Buechi
1934 and Michael Meier, both graduates of the Zurich University
1935 of Applied Sciences in Winterthur, Switzerland.
1937 - When a %trap eroute is triggered by an outgoing IP packet
1938 then the native IPsec stack of the Linux 2.6 kernel [often/
1939 always?] returns an XFRM_ACQUIRE message with an undefined
1940 protocol family field and the connection setup fails.
1941 As a workaround IPv4 (AF_INET) is now assumed.
1943 - the results of the UML test scenarios are now enhanced
1944 with block diagrams of the virtual network topology used
1945 in a particular test.
1951 - fixed IV used to decrypt informational messages.
1952 This bug was introduced with Mode Config functionality.
1954 - fixed NCP Vendor ID.
1956 - undid one of Ulrich Weber's maximum udp size patches
1957 because it caused a segmentation fault with NAT-ed
1960 - added UML scenarios wildcards and attr-cert which
1961 demonstrate the implementation of IPsec policies based
1962 on wildcard parameters contained in Distinguished Names and
1963 on X.509 attribute certificates, respectively.
1969 - Added basic Mode Config functionality
1971 - Added Mathieu Lafon's patch which upgrades the status of
1972 the NAT-Traversal implementation to RFC 3947.
1974 - The _startklips script now also loads the xfrm4_tunnel
1977 - Added Ulrich Weber's netlink replay window size and
1978 maximum udp size patches.
1980 - UML testing now uses the Linux 2.6.10 UML kernel by default.
1986 - Eric Marchionni and Patrik Rayo, both recent graduates from
1987 the Zuercher Hochschule Winterthur in Switzerland, created a
1988 User-Mode-Linux test setup for strongSwan. For more details
1989 please read the INSTALL and README documents in the testing
1992 - Full support of group attributes based on X.509 attribute
1993 certificates. Attribute certificates can be generated
1994 using the openac facility. For more details see
1998 The group attributes can be used in connection definitions
1999 in order to give IPsec access to specific user groups.
2000 This is done with the new parameter left|rightgroups as in
2002 rightgroups="Research, Sales"
2004 giving access to users possessing the group attributes
2005 Research or Sales, only.
2007 - In Quick Mode clients with subnet mask /32 are now
2008 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
2009 fix rekeying problems with the SafeNet/SoftRemote and NCP
2010 Secure Entry Clients.
2012 - Changed the defaults of the ikelifetime and keylife parameters
2013 to 3h and 1h, respectively. The maximum allowable values are
2014 now both set to 24 h.
2016 - Suppressed notification wars between two IPsec peers that
2017 could e.g. be triggered by incorrect ISAKMP encryption.
2019 - Public RSA keys can now have identical IDs if either the
2020 issuing CA or the serial number is different. The serial
2021 number of a certificate is now shown by the command
2023 ipsec auto --listpubkeys
2029 - Added Tuomo Soini's sourceip feature which allows a strongSwan
2030 roadwarrior to use a fixed Virtual IP (see README section 2.6)
2031 and reduces the well-known four tunnel case on VPN gateways to
2032 a single tunnel definition (see README section 2.4).
2034 - Fixed a bug occurring with NAT-Traversal enabled when the responder
2035 suddenly turns initiator and the initiator cannot find a matching
2036 connection because of the floated IKE port 4500.
2038 - Removed misleading ipsec verify command from barf.
2040 - Running under the native IP stack, ipsec --version now shows
2041 the Linux kernel version (courtesy to the Openswan project).
2047 - Introduced the ipsec auto --listalgs monitoring command which lists
2048 all currently registered IKE and ESP algorithms.
2050 - Fixed a bug in the ESP algorithm selection occurring when the strict flag
2051 is set and the first proposed transform does not match.
2053 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
2054 occurring when a smartcard is present.
2056 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
2058 - Fixed the printing of the notification names (null)
2060 - Applied another of Herbert Xu's Netlink patches.
2066 - Support of Dead Peer Detection. The connection parameter
2068 dpdaction=clear|hold
2070 activates DPD for the given connection.
2072 - The default Opportunistic Encryption (OE) policy groups are not
2073 automatically included anymore. Those wishing to activate OE can include
2074 the policy group with the following statement in ipsec.conf:
2076 include /etc/ipsec.d/examples/oe.conf
2078 The default for [right|left]rsasigkey is now set to %cert.
2080 - strongSwan now has a Vendor ID of its own which can be activated
2081 using the compile option VENDORID
2083 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
2085 - Applied Herbert Xu's patch fixing an ESPINUDP problem
2087 - Applied Herbert Xu's patch setting source/destination port numbers.
2089 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
2090 lost during the migration from SuperFreeS/WAN.
2092 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
2094 - Fixed the unsharing of alg parameters when instantiating group
2101 - Thomas Walpuski made me aware of a potential DoS attack via
2102 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
2103 certificates in Pluto's authority certificate store. This vulnerability
2104 was fixed by establishing trust in CA candidate certificates up to a
2105 trusted root CA prior to insertion into Pluto's chained list.
2107 - replaced the --assign option by the -v option in the auto awk script
2108 in order to make it run with mawk under debian/woody.
2114 - Split of the status information between ipsec auto --status (concise)
2115 and ipsec auto --statusall (verbose). Both commands can be used with
2116 an optional connection selector:
2118 ipsec auto --status[all] <connection_name>
2120 - Added the description of X.509 related features to the ipsec_auto(8)
2123 - Hardened the ASN.1 parser in debug mode, especially the printing
2124 of malformed distinguished names.
2126 - The size of an RSA public key received in a certificate is now restricted to
2128 512 bits <= modulus length <= 8192 bits.
2130 - Fixed the debug mode enumeration.
2136 - Fixed another PKCS#7 vulnerability which could lead to an
2137 endless loop while following the X.509 trust chain.
2143 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
2144 that accepted end certificates having identical issuer and subject
2145 distinguished names in a multi-tier X.509 trust chain.
2151 - Removed all remaining references to ipsec_netlink.h in KLIPS.
2157 - The new "ca" section allows to define the following parameters:
2160 cacert=koolCA.pem # cacert of kool CA
2161 ocspuri=http://ocsp.kool.net:8001 # ocsp server
2162 ldapserver=ldap.kool.net # default ldap server
2163 crluri=http://www.kool.net/kool.crl # crl distribution point
2164 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
2165 auto=add # add, ignore
2167 The ca definitions can be monitored via the command
2169 ipsec auto --listcainfos
2171 - Fixed cosmetic corruption of /proc filesystem by integrating
2172 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
2178 - Added support for the 818043 NAT-Traversal update of Microsoft's
2179 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
2181 - A symbolic link to libcrypto is now added in the kernel sources
2182 during kernel compilation
2184 - Fixed a couple of 64 bit issues (mostly casts to int).
2185 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
2187 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
2188 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
2189 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
2195 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
2196 certificate extension which contains no generalName item) can cause
2197 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
2198 been hardened to make it more robust against malformed ASN.1 objects.
2200 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
2201 Linux 2.6 IPsec stack.
2207 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12
projects / people / ms / strongswan.git / blob