4 - The IKEv2 daemon supports RFC 3779 IP address block constraints
5 carried as a critical X.509v3 extension in the peer certificate.
7 - The ipsec pool --add|del dns|nbns command manages DNS and NBNS name
8 server entries that are sent via the IKEv1 Mode Config or IKEv2
9 Configuration Payload to remote clients.
11 - The Camellia cipher can be used as an IKEv1 encryption algorithm.
13 - The IKEv1 and IKEV2 daemons now check certificate path length constraints.
15 - More detailed IKEv2 EAP payload information in debug output
17 - IKEv2 EAP-SIM and EAP-AKA share joint libsimaka library
19 - Added required userland changes for proper SHA256 and SHA384/512 in ESP that
20 will be introduced with Linux 2.6.33. The "sha256"/"sha2_256" keyword now
21 configures the kernel with 128 bit truncation, not the non-standard 96
22 bit truncation used by previous releases. To use the old 96 bit truncation
23 scheme, the new "sha256_96" proposal keyword has been introduced.
25 - Fixed IPComp in tunnel mode, stripping out the duplicated outer header. This
26 change makes IPcomp tunnel mode connections incompatible with previous
27 releases; disable compression on such tunnels.
29 - Fixed BEET mode connections on recent kernels by installing SAs with
30 appropriate traffic selectors, based on a patch by Michael Rossberg.
32 - The IKEv1 daemon ignores the Juniper SRX notification type 40001, thus
33 allowing interoperability.
39 - The IKEv1 pluto daemon can now use SQL-based address pools to deal out
40 virtual IP addresses as a Mode Config server. The pool capability has been
41 migrated from charon's sql plugin to a new attr-sql plugin which is loaded
42 by libstrongswan and which can be used by both daemons either with a SQLite
43 or MySQL database and the corresponding plugin.
45 - Plugin names have been streamlined: EAP plugins now have a dash after eap
46 (e.g. eap-sim), as it is used with the --enable-eap-sim ./configure option.
47 Plugin configuration sections in strongswan.conf now use the same name as the
48 plugin itself (i.e. with a dash). Make sure to update "load" directives and
49 the affected plugin sections in existing strongswan.conf files.
51 - The private/public key parsing and encoding has been split up into
52 separate pkcs1, pgp, pem and dnskey plugins. The public key implementation
53 plugins gmp, gcrypt and openssl can all make use of them.
55 - The EAP-AKA plugin can use different backends for USIM/quintuplet
56 calculations, very similar to the EAP-SIM plugin. The existing 3GPP2 software
57 implementation has been migrated to a separate plugin.
59 - The IKEv2 daemon charon gained basic PGP support. It can use locally installed
60 peer certificates and can issue signatures based on RSA private keys.
62 - The new 'ipsec pki' tool provides a set of commands to maintain a public
63 key infrastructure. It currently supports operations to create RSA and ECDSA
64 private/public keys, calculate fingerprints and issue or verify certificates.
66 - Charon uses a monotonic time source for statistics and job queueing, behaving
67 correctly if the system time changes (e.g. when using NTP).
69 - In addition to time based rekeying, charon supports IPsec SA lifetimes based
70 on processed volume or number of packets. They new ipsec.conf paramaters
71 'lifetime' (an alias to 'keylife'), 'lifebytes' and 'lifepackets' handle
72 SA timeouts, while the parameters 'margintime' (an alias to rekeymargin),
73 'marginbytes' and 'marginpackets' trigger the rekeying before a SA expires.
74 The existing parameter 'rekeyfuzz' affects all margins.
76 - If no CA/Gateway certificate is specified in the NetworkManager plugin,
77 charon uses a set of trusted root certificates preinstalled by distributions.
78 The directory containing CA certificates can be specified using the
79 --with-nm-ca-dir=path configure option.
81 - Fixed the encoding of the Email relative distinguished name in left|rightid
84 - Fixed the broken parsing of PKCS#7 wrapped certificates by the pluto daemon.
86 - Fixed smartcard-based authentication in the pluto daemon which was broken by
87 the ECDSA support introduced with the 4.3.2 release.
89 - A patch contributed by Heiko Hund fixes mixed IPv6 in IPv4 and vice versa
90 tunnels established with the IKEv1 pluto daemon.
92 - The pluto daemon now uses the libstrongswan x509 plugin for certificates and
93 CRls and the struct id type was replaced by identification_t used by charon
94 and the libstrongswan library.
100 - IKEv2 charon daemon ported to FreeBSD and Mac OS X. Installation details can
101 be found on wiki.strongswan.org.
103 - ipsec statusall shows the number of bytes transmitted and received over
104 ESP connections configured by the IKEv2 charon daemon.
106 - The IKEv2 charon daemon supports include files in ipsec.secrets.
112 - The configuration option --enable-integrity-test plus the strongswan.conf
113 option libstrongswan.integrity_test = yes activate integrity tests
114 of the IKE daemons charon and pluto, libstrongswan and all loaded
115 plugins. Thus dynamic library misconfigurations and non-malicious file
116 manipulations can be reliably detected.
118 - The new default setting libstrongswan.ecp_x_coordinate_only=yes allows
119 IKEv1 interoperability with MS Windows using the ECP DH groups 19 and 20.
121 - The IKEv1 pluto daemon now supports the AES-CCM and AES-GCM ESP
122 authenticated encryption algorithms.
124 - The IKEv1 pluto daemon now supports V4 OpenPGP keys.
126 - The RDN parser vulnerability discovered by Orange Labs research team
127 was not completely fixed in version 4.3.2. Some more modifications
128 had to be applied to the asn1_length() function to make it robust.
134 - The new gcrypt plugin provides symmetric cipher, hasher, RNG, Diffie-Hellman
135 and RSA crypto primitives using the LGPL licensed GNU gcrypt library.
137 - libstrongswan features an integrated crypto selftest framework for registered
138 algorithms. The test-vector plugin provides a first set of test vectors and
139 allows pluto and charon to rely on tested crypto algorithms.
141 - pluto can now use all libstrongswan plugins with the exception of x509 and xcbc.
142 Thanks to the openssl plugin, the ECP Diffie-Hellman groups 19, 20, 21, 25, and
143 26 as well as ECDSA-256, ECDSA-384, and ECDSA-521 authentication can be used
146 - Applying their fuzzing tool, the Orange Labs vulnerability research team found
147 another two DoS vulnerabilities, one in the rather old ASN.1 parser of Relative
148 Distinguished Names (RDNs) and a second one in the conversion of ASN.1 UTCTIME
149 and GENERALIZEDTIME strings to a time_t value.
155 - The nm plugin now passes DNS/NBNS server information to NetworkManager,
156 allowing a gateway administrator to set DNS/NBNS configuration on clients
159 - The nm plugin also accepts CA certificates for gateway authentication. If
160 a CA certificate is configured, strongSwan uses the entered gateway address
161 as its idenitity, requiring the gateways certificate to contain the same as
162 subjectAltName. This allows a gateway administrator to deploy the same
163 certificates to Windows 7 and NetworkManager clients.
165 - The command ipsec purgeike deletes IKEv2 SAs that don't have a CHILD SA.
166 The command ipsec down <conn>{n} deletes CHILD SA instance n of connection
167 <conn> whereas ipsec down <conn>{*} deletes all CHILD SA instances.
168 The command ipsec down <conn>[n] deletes IKE SA instance n of connection
169 <conn> plus dependent CHILD SAs whereas ipsec down <conn>[*] deletes all
170 IKE SA instances of connection <conn>.
172 - Fixed a regression introduced in 4.3.0 where EAP authentication calculated
173 the AUTH payload incorrectly. Further, the EAP-MSCHAPv2 MSK key derivation
174 has been updated to be compatible with the Windows 7 Release Candidate.
176 - Refactored installation of triggering policies. Routed policies are handled
177 outside of IKE_SAs to keep them installed in any case. A tunnel gets
178 established only once, even if initiation is delayed due network outages.
180 - Improved the handling of multiple acquire signals triggered by the kernel.
182 - Fixed two DoS vulnerabilities in the charon daemon that were discovered by
183 fuzzing techniques: 1) Sending a malformed IKE_SA_INIT request leaved an
184 incomplete state which caused a null pointer dereference if a subsequent
185 CREATE_CHILD_SA request was sent. 2) Sending an IKE_AUTH request with either
186 a missing TSi or TSr payload caused a null pointer derefence because the
187 checks for TSi and TSr were interchanged. The IKEv2 fuzzer used was
188 developped by the Orange Labs vulnerability research team. The tool was
189 initially written by Gabriel Campana and is now maintained by Laurent Butti.
191 - Added support for AES counter mode in ESP in IKEv2 using the proposal
192 keywords aes128ctr, aes192ctr and aes256ctr.
194 - Further progress in refactoring pluto: Use of the curl and ldap plugins
195 for fetching crls and OCSP. Use of the random plugin to get keying material
196 from /dev/random or /dev/urandom. Use of the openssl plugin as an alternative
197 to the aes, des, sha1, sha2, and md5 plugins. The blowfish, twofish, and
198 serpent encryption plugins are now optional and are not enabled by default.
204 - Support for the IKEv2 Multiple Authentication Exchanges extension (RFC4739).
205 Initiators and responders can use several authentication rounds (e.g. RSA
206 followed by EAP) to authenticate. The new ipsec.conf leftauth/rightauth and
207 leftauth2/rightauth2 parameters define own authentication rounds or setup
208 constraints for the remote peer. See the ipsec.conf man page for more detials.
210 - If glibc printf hooks (register_printf_function) are not available,
211 strongSwan can use the vstr string library to run on non-glibc systems.
213 - The IKEv2 charon daemon can now configure the ESP CAMELLIA-CBC cipher
214 (esp=camellia128|192|256).
216 - Refactored the pluto and scepclient code to use basic functions (memory
217 allocation, leak detective, chunk handling, printf_hooks, strongswan.conf
218 attributes, ASN.1 parser, etc.) from the libstrongswan library.
220 - Up to two DNS and WINS servers to be sent via IKEv1 ModeConfig can be
221 configured in the pluto section of strongswan.conf.
227 - The new server-side EAP RADIUS plugin (--enable-eap-radius)
228 relays EAP messages to and from a RADIUS server. Succesfully
229 tested with with a freeradius server using EAP-MD5 and EAP-SIM.
231 - A vulnerability in the Dead Peer Detection (RFC 3706) code was found by
232 Gerd v. Egidy <gerd.von.egidy@intra2net.com> of Intra2net AG affecting
233 all Openswan and strongSwan releases. A malicious (or expired ISAKMP)
234 R_U_THERE or R_U_THERE_ACK Dead Peer Detection packet can cause the
235 pluto IKE daemon to crash and restart. No authentication or encryption
236 is required to trigger this bug. One spoofed UDP packet can cause the
237 pluto IKE daemon to restart and be unresponsive for a few seconds while
238 restarting. This DPD null state vulnerability has been officially
239 registered as CVE-2009-0790 and is fixed by this release.
241 - ASN.1 to time_t conversion caused a time wrap-around for
242 dates after Jan 18 03:14:07 UTC 2038 on 32-bit platforms.
243 As a workaround such dates are set to the maximum representable
244 time, i.e. Jan 19 03:14:07 UTC 2038.
246 - Distinguished Names containing wildcards (*) are not sent in the
253 - Fixed a use-after-free bug in the DPD timeout section of the
254 IKEv1 pluto daemon which sporadically caused a segfault.
256 - Fixed a crash in the IKEv2 charon daemon occuring with
257 mixed RAM-based and SQL-based virtual IP address pools.
259 - Fixed ASN.1 parsing of algorithmIdentifier objects where the
260 parameters field is optional.
262 - Ported nm plugin to NetworkManager 7.1.
268 - Support of the EAP-MSCHAPv2 protocol enabled by the option
269 --enable-eap-mschapv2. Requires the MD4 hash algorithm enabled
270 either by --enable-md4 or --enable-openssl.
272 - Assignment of up to two DNS and up to two WINS servers to peers via
273 the IKEv2 Configuration Payload (CP). The IPv4 or IPv6 nameserver
274 addresses are defined in strongswan.conf.
276 - The strongSwan applet for the Gnome NetworkManager is now built and
277 distributed as a separate tarball under the name NetworkManager-strongswan.
283 - Fixed ESP NULL encryption broken by the refactoring of keymat.c.
284 Also introduced proper initialization and disposal of keying material.
286 - Fixed the missing listing of connection definitions in ipsec statusall
287 broken by an unfortunate local variable overload.
293 - Several performance improvements to handle thousands of tunnels with almost
294 linear upscaling. All relevant data structures have been replaced by faster
295 counterparts with better lookup times.
297 - Better parallelization to run charon on multiple cores. Due to improved
298 ressource locking and other optimizations the daemon can take full
299 advantage of 16 or even more cores.
301 - The load-tester plugin can use a NULL Diffie-Hellman group and simulate
302 unique identities and certificates by signing peer certificates using a CA
305 - The redesigned stroke in-memory IP pool handles leases. The "ipsec leases"
306 command queries assigned leases.
308 - Added support for smartcards in charon by using the ENGINE API provided by
309 OpenSSL, based on patches by Michael Roßberg.
311 - The Padlock plugin supports the hardware RNG found on VIA CPUs to provide a
312 reliable source of randomness.
317 - Flexible configuration of logging subsystem allowing to log to multiple
318 syslog facilities or to files using fine-grained log levels for each target.
320 - Load testing plugin to do stress testing of the IKEv2 daemon against self
321 or another host. Found and fixed issues during tests in the multi-threaded
322 use of the OpenSSL plugin.
324 - Added profiling code to synchronization primitives to find bottlenecks if
325 running on multiple cores. Found and fixed an issue where parts of the
326 Diffie-Hellman calculation acquired an exclusive lock. This greatly improves
327 parallelization to multiple cores.
329 - updown script invocation has been separated into a plugin of its own to
330 further slim down the daemon core.
332 - Separated IKE_SA/CHILD_SA key derivation process into a closed system,
333 allowing future implementations to use a secured environment in e.g. kernel
336 - The kernel interface of charon has been modularized. XFRM NETLINK (default)
337 and PFKEY (--enable-kernel-pfkey) interface plugins for the native IPsec
338 stack of the Linux 2.6 kernel as well as a PFKEY interface for the KLIPS
339 IPsec stack (--enable-kernel-klips) are provided.
341 - Basic Mobile IPv6 support has been introduced, securing Binding Update
342 messages as well as tunneled traffic between Mobile Node and Home Agent.
343 The installpolicy=no option allows peaceful cooperation with a dominant
344 mip6d daemon and the new type=transport_proxy implements the special MIPv6
345 IPsec transport proxy mode where the IKEv2 daemon uses the Care-of-Address
346 but the IPsec SA is set up for the Home Adress.
348 - Implemented migration of Mobile IPv6 connections using the KMADDRESS
349 field contained in XFRM_MSG_MIGRATE messages sent by the mip6d daemon
350 via the Linux 2.6.28 (or appropriately patched) kernel.
356 - IKEv2 charon daemon supports authentication based on raw public keys
357 stored in the SQL database backend. The ipsec listpubkeys command
358 lists the available raw public keys via the stroke interface.
360 - Several MOBIKE improvements: Detect changes in NAT mappings in DPD exchanges,
361 handle events if kernel detects NAT mapping changes in UDP-encapsulated
362 ESP packets (requires kernel patch), reuse old addesses in MOBIKE updates as
363 long as possible and other fixes.
365 - Fixed a bug in addr_in_subnet() which caused insertion of wrong source
366 routes for destination subnets having netwmasks not being a multiple of 8 bits.
367 Thanks go to Wolfgang Steudel, TU Ilmenau for reporting this bug.
373 - Fixed a Denial-of-Service vulnerability where an IKE_SA_INIT message with
374 a KE payload containing zeroes only can cause a crash of the IKEv2 charon
375 daemon due to a NULL pointer returned by the mpz_export() function of the
376 GNU Multiprecision Library (GMP). Thanks go to Mu Dynamics Research Labs
377 for making us aware of this problem.
379 - The new agent plugin provides a private key implementation on top of an
382 - The NetworkManager plugin has been extended to support certificate client
383 authentication using RSA keys loaded from a file or using ssh-agent.
385 - Daemon capability dropping has been ported to libcap and must be enabled
386 explicitly --with-capabilities=libcap. Future version will support the
387 newer libcap2 library.
389 - ipsec listalgs lists the IKEv2 cryptografic algorithms registered with the
390 charon keying daemon.
396 - A NetworkManager plugin allows GUI-based configuration of road-warrior
397 clients in a simple way. It features X509 based gateway authentication
398 and EAP client authentication, tunnel setup/teardown and storing passwords
399 in the Gnome Keyring.
401 - A new EAP-GTC plugin implements draft-sheffer-ikev2-gtc-00.txt and allows
402 username/password authentication against any PAM service on the gateway.
403 The new EAP method interacts nicely with the NetworkManager plugin and allows
404 client authentication against e.g. LDAP.
406 - Improved support for the EAP-Identity method. The new ipsec.conf eap_identity
407 parameter defines an additional identity to pass to the server in EAP
410 - The "ipsec statusall" command now lists CA restrictions, EAP
411 authentication types and EAP identities.
413 - Fixed two multithreading deadlocks occurring when starting up
414 several hundred tunnels concurrently.
416 - Fixed the --enable-integrity-test configure option which
417 computes a SHA-1 checksum over the libstrongswan library.
423 - Consistent logging of IKE and CHILD SAs at the audit (AUD) level.
425 - Improved the performance of the SQL-based virtual IP address pool
426 by introducing an additional addresses table. The leases table
427 storing only history information has become optional and can be
428 disabled by setting charon.plugins.sql.lease_history = no in
431 - The XFRM_STATE_AF_UNSPEC flag added to xfrm.h allows IPv4-over-IPv6
432 and IPv6-over-IPv4 tunnels with the 2.6.26 and later Linux kernels.
434 - management of different virtual IP pools for different
435 network interfaces have become possible.
437 - fixed a bug which prevented the assignment of more than 256
438 virtual IP addresses from a pool managed by an sql database.
440 - fixed a bug which did not delete own IPCOMP SAs in the kernel.
446 - Added statistics functions to ipsec pool --status and ipsec pool --leases
447 and input validation checks to various ipsec pool commands.
449 - ipsec statusall now lists all loaded charon plugins and displays
450 the negotiated IKEv2 cipher suite proposals.
452 - The openssl plugin supports the elliptic curve Diffie-Hellman groups
453 19, 20, 21, 25, and 26.
455 - The openssl plugin supports ECDSA authentication using elliptic curve
458 - Fixed a bug in stroke which caused multiple charon threads to close
459 the file descriptors during packet transfers over the stroke socket.
461 - ESP sequence numbers are now migrated in IPsec SA updates handled by
462 MOBIKE. Works only with Linux kernels >= 2.6.17.
468 - Fixed the strongswan.conf path configuration problem that occurred when
469 --sysconfig was not set explicitly in ./configure.
471 - Fixed a number of minor bugs that where discovered during the 4th
472 IKEv2 interoperability workshop in San Antonio, TX.
478 - Plugins for libstrongswan and charon can optionally be loaded according
479 to a configuration in strongswan.conf. Most components provide a
480 "load = " option followed by a space separated list of plugins to load.
481 This allows e.g. the fallback from a hardware crypto accelerator to
482 to software-based crypto plugins.
484 - Charons SQL plugin has been extended by a virtual IP address pool.
485 Configurations with a rightsourceip=%poolname setting query a SQLite or
486 MySQL database for leases. The "ipsec pool" command helps in administrating
487 the pool database. See ipsec pool --help for the available options
489 - The Authenticated Encryption Algorithms AES-CCM-8/12/16 and AES-GCM-8/12/16
490 for ESP are now supported starting with the Linux 2.6.25 kernel. The
491 syntax is e.g. esp=aes128ccm12 or esp=aes256gcm16.
497 - Support for "Hash and URL" encoded certificate payloads has been implemented
498 in the IKEv2 daemon charon. Using the "certuribase" option of a CA section
499 allows to assign a base URL to all certificates issued by the specified CA.
500 The final URL is then built by concatenating that base and the hex encoded
501 SHA1 hash of the DER encoded certificate. Note that this feature is disabled
502 by default and must be enabled using the option "charon.hash_and_url".
504 - The IKEv2 daemon charon now supports the "uniqueids" option to close multiple
505 IKE_SAs with the same peer. The option value "keep" prefers existing
506 connection setups over new ones, where the value "replace" replaces existing
509 - The crypto factory in libstrongswan additionaly supports random number
510 generators, plugins may provide other sources of randomness. The default
511 plugin reads raw random data from /dev/(u)random.
513 - Extended the credential framework by a caching option to allow plugins
514 persistent caching of fetched credentials. The "cachecrl" option has been
517 - The new trustchain verification introduced in 4.2.0 has been parallelized.
518 Threads fetching CRL or OCSP information no longer block other threads.
520 - A new IKEv2 configuration attribute framework has been introduced allowing
521 plugins to provide virtual IP addresses, and in the future, other
522 configuration attribute services (e.g. DNS/WINS servers).
524 - The stroke plugin has been extended to provide virtual IP addresses from
525 a pool defined in ipsec.conf. The "rightsourceip" parameter now accepts
526 address pools in CIDR notation (e.g. 10.1.1.0/24). The parameter also accepts
527 the value "%poolname", where "poolname" identifies a pool provided by a
530 - Fixed compilation on uClibc and a couple of other minor bugs.
532 - Set DPD defaults in ipsec starter to dpd_delay=30s and dpd_timeout=150s.
534 - The IKEv1 pluto daemon now supports the ESP encryption algorithm CAMELLIA
535 with key lengths of 128, 192, and 256 bits, as well as the authentication
536 algorithm AES_XCBC_MAC. Configuration example: esp=camellia192-aesxcbc.
542 - libstrongswan has been modularized to attach crypto algorithms,
543 credential implementations (keys, certificates) and fetchers dynamically
544 through plugins. Existing code has been ported to plugins:
545 - RSA/Diffie-Hellman implementation using the GNU Multi Precision library
546 - X509 certificate system supporting CRLs, OCSP and attribute certificates
547 - Multiple plugins providing crypto algorithms in software
548 - CURL and OpenLDAP fetcher
550 - libstrongswan gained a relational database API which uses pluggable database
551 providers. Plugins for MySQL and SQLite are available.
553 - The IKEv2 keying daemon charon is more extensible. Generic plugins may provide
554 connection configuration, credentials and EAP methods or control the daemon.
555 Existing code has been ported to plugins:
556 - EAP-AKA, EAP-SIM, EAP-MD5 and EAP-Identity
557 - stroke configuration, credential and control (compatible to pluto)
558 - XML bases management protocol to control and query the daemon
559 The following new plugins are available:
560 - An experimental SQL configuration, credential and logging plugin on
561 top of either MySQL or SQLite
562 - A unit testing plugin to run tests at daemon startup
564 - The authentication and credential framework in charon has been heavily
565 refactored to support modular credential providers, proper
566 CERTREQ/CERT payload exchanges and extensible authorization rules.
568 - The framework of strongSwan Manager has envolved to the web application
569 framework libfast (FastCGI Application Server w/ Templates) and is usable
570 by other applications.
576 - IKE rekeying in NAT situations did not inherit the NAT conditions
577 to the rekeyed IKE_SA so that the UDP encapsulation was lost with
578 the next CHILD_SA rekeying.
580 - Wrong type definition of the next_payload variable in id_payload.c
581 caused an INVALID_SYNTAX error on PowerPC platforms.
583 - Implemented IKEv2 EAP-SIM server and client test modules that use
584 triplets stored in a file. For details on the configuration see
585 the scenario 'ikev2/rw-eap-sim-rsa'.
591 - Fixed error in the ordering of the certinfo_t records in the ocsp cache that
592 caused multiple entries of the same serial number to be created.
594 - Implementation of a simple EAP-MD5 module which provides CHAP
595 authentication. This may be interesting in conjunction with certificate
596 based server authentication, as weak passwords can't be brute forced
597 (in contradiction to traditional IKEv2 PSK).
599 - A complete software based implementation of EAP-AKA, using algorithms
600 specified in 3GPP2 (S.S0055). This implementation does not use an USIM,
601 but reads the secrets from ipsec.secrets. Make sure to read eap_aka.h
604 - Support for vendor specific EAP methods using Expanded EAP types. The
605 interface to EAP modules has been slightly changed, so make sure to
606 check the changes if you're already rolling your own modules.
612 - The default _updown script now dynamically inserts and removes ip6tables
613 firewall rules if leftfirewall=yes is set in IPv6 connections. New IPv6
614 net-net and roadwarrior (PSK/RSA) scenarios for both IKEv1 and IKEV2 were
617 - Implemented RFC4478 repeated authentication to force EAP/Virtual-IP clients
618 to reestablish an IKE_SA within a given timeframe.
620 - strongSwan Manager supports configuration listing, initiation and termination
621 of IKE and CHILD_SAs.
623 - Fixes and improvements to multithreading code.
625 - IKEv2 plugins have been renamed to libcharon-* to avoid naming conflicts.
626 Make sure to remove the old plugins in $libexecdir/ipsec, otherwise they get
633 - Removed recursive pthread mutexes since uClibc doesn't support them.
639 - In NAT traversal situations and multiple queued Quick Modes,
640 those pending connections inserted by auto=start after the
641 port floating from 500 to 4500 were erronously deleted.
643 - Added a "forceencaps" connection parameter to enforce UDP encapsulation
644 to surmount restrictive firewalls. NAT detection payloads are faked to
645 simulate a NAT situation and trick the other peer into NAT mode (IKEv2 only).
647 - Preview of strongSwan Manager, a web based configuration and monitoring
648 application. It uses a new XML control interface to query the IKEv2 daemon
649 (see http://trac.strongswan.org/wiki/Manager).
651 - Experimental SQLite configuration backend which will provide the configuration
652 interface for strongSwan Manager in future releases.
654 - Further improvements to MOBIKE support.
660 - Since some third party IKEv2 implementations run into
661 problems with strongSwan announcing MOBIKE capability per
662 default, MOBIKE can be disabled on a per-connection-basis
663 using the mobike=no option. Whereas mobike=no disables the
664 sending of the MOBIKE_SUPPORTED notification and the floating
665 to UDP port 4500 with the IKE_AUTH request even if no NAT
666 situation has been detected, strongSwan will still support
667 MOBIKE acting as a responder.
669 - the default ipsec routing table plus its corresponding priority
670 used for inserting source routes has been changed from 100 to 220.
671 It can be configured using the --with-ipsec-routing-table and
672 --with-ipsec-routing-table-prio options.
674 - the --enable-integrity-test configure option tests the
675 integrity of the libstrongswan crypto code during the charon
678 - the --disable-xauth-vid configure option disables the sending
679 of the XAUTH vendor ID. This can be used as a workaround when
680 interoperating with some Windows VPN clients that get into
681 trouble upon reception of an XAUTH VID without eXtended
682 AUTHentication having been configured.
684 - ipsec stroke now supports the rereadsecrets, rereadaacerts,
685 rereadacerts, and listacerts options.
691 - If a DNS lookup failure occurs when resolving right=%<FQDN>
692 or right=<FQDN> combined with rightallowany=yes then the
693 connection is not updated by ipsec starter thus preventing
694 the disruption of an active IPsec connection. Only if the DNS
695 lookup successfully returns with a changed IP address the
696 corresponding connection definition is updated.
698 - Routes installed by the keying daemons are now in a separate
699 routing table with the ID 100 to avoid conflicts with the main
700 table. Route lookup for IKEv2 traffic is done in userspace to ignore
701 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
707 - The pluto IKEv1 daemon now exhibits the same behaviour as its
708 IKEv2 companion charon by inserting an explicit route via the
709 _updown script only if a sourceip exists. This is admissible
710 since routing through the IPsec tunnel is handled automatically
711 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
712 parameter is not required any more.
714 - The new IKEv1 parameter right|leftallowany parameters helps to handle
715 the case where both peers possess dynamic IP addresses that are
716 usually resolved using DynDNS or a similar service. The configuration
721 can be used by the initiator to start up a connection to a peer
722 by resolving peer.foo.bar into the currently allocated IP address.
723 Thanks to the rightallowany flag the connection behaves later on
728 so that the peer can rekey the connection as an initiator when his
729 IP address changes. An alternative notation is
733 which will implicitly set rightallowany=yes.
735 - ipsec starter now fails more gracefully in the presence of parsing
736 errors. Flawed ca and conn section are discarded and pluto is started
737 if non-fatal errors only were encountered. If right=%peer.foo.bar
738 cannot be resolved by DNS then right=%any will be used so that passive
739 connections as a responder are still possible.
741 - The new pkcs11initargs parameter that can be placed in the
742 setup config section of /etc/ipsec.conf allows the definition
743 of an argument string that is used with the PKCS#11 C_Initialize()
744 function. This non-standard feature is required by the NSS softoken
745 library. This patch was contributed by Robert Varga.
747 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
748 which caused a segmentation fault in the presence of unknown
749 or misspelt keywords in ipsec.conf. This bug fix was contributed
752 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
753 address configuration changes and updates IKE and IPsec SAs dynamically.
759 - IKEv2 peer configuration selection now can be based on a given
760 certification authority using the rightca= statement.
762 - IKEv2 authentication based on RSA signatures now can handle multiple
763 certificates issued for a given peer ID. This allows a smooth transition
764 in the case of a peer certificate renewal.
766 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
767 client and returning requested virtual IPs using rightsourceip=%config
768 on the server. If the server does not support configuration payloads, the
769 client enforces its leftsourceip parameter.
771 - The ./configure options --with-uid/--with-gid allow pluto and charon
772 to drop their privileges to a minimum and change to an other UID/GID. This
773 improves the systems security, as a possible intruder may only get the
774 CAP_NET_ADMIN capability.
776 - Further modularization of charon: Pluggable control interface and
777 configuration backend modules provide extensibility. The control interface
778 for stroke is included, and further interfaces using DBUS (NetworkManager)
779 or XML are on the way. A backend for storing configurations in the daemon
780 is provided and more advanced backends (using e.g. a database) are trivial
783 - Fixed a compilation failure in libfreeswan occuring with Linux kernel
790 - Support for an additional Diffie-Hellman exchange when creating/rekeying
791 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
792 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
793 is implemented properly for rekeying.
795 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
796 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
798 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
800 - Added support for EAP modules which do not establish an MSK.
802 - Removed the dependencies from the /usr/include/linux/ headers by
803 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
805 - crlNumber is now listed by ipsec listcrls
807 - The xauth_modules.verify_secret() function now passes the
814 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
815 cookies are enabled and protect against DoS attacks with faked source
816 addresses. Number of IKE_SAs in CONNECTING state is also limited per
817 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
818 compared to properly detect retransmissions and incoming retransmits are
819 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
821 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
822 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
823 enabled by cachecrls=yes.
825 - Added the configuration options --enable-nat-transport which enables
826 the potentially insecure NAT traversal for IPsec transport mode and
827 --disable-vendor-id which disables the sending of the strongSwan
830 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
831 a segmentation fault if a malformed payload was detected in the
832 IKE MR2 message and pluto tried to send an encrypted notification
835 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
836 with Windows 2003 Server which uses a wrong VID hash.
842 - Support of SHA2_384 hash function for protecting IKEv1
843 negotiations and support of SHA2 signatures in X.509 certificates.
845 - Fixed a serious bug in the computation of the SHA2-512 HMAC
846 function. Introduced automatic self-test of all IKEv1 hash
847 and hmac functions during pluto startup. Failure of a self-test
848 currently issues a warning only but does not exit pluto [yet].
850 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
852 - Full support of CA information sections. ipsec listcainfos
853 now shows all collected crlDistributionPoints and OCSP
856 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
857 This feature requires the HTTP fetching capabilities of the libcurl
858 library which must be enabled by setting the --enable-http configure
861 - Refactored core of the IKEv2 message processing code, allowing better
862 code reuse and separation.
864 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
865 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
866 by the requestor and installed in a resolv.conf file.
868 - The IKEv2 daemon charon installs a route for each IPsec policy to use
869 the correct source address even if an application does not explicitly
872 - Integrated the EAP framework into charon which loads pluggable EAP library
873 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
874 on the client side, while the "eap" parameter on the server side defines
875 the EAP method to use for client authentication.
876 A generic client side EAP-Identity module and an EAP-SIM authentication
877 module using a third party card reader implementation are included.
879 - Added client side support for cookies.
881 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
882 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
883 fixes to enhance interoperability with other implementations.
889 - strongSwan now interoperates with the NCP Secure Entry Client,
890 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
891 XAUTH and Mode Config.
893 - UNITY attributes are now recognized and UNITY_BANNER is set
900 - IKEv1: Support for extended authentication (XAUTH) in combination
901 with ISAKMP Main Mode RSA or PSK authentication. Both client and
902 server side were implemented. Handling of user credentials can
903 be done by a run-time loadable XAUTH module. By default user
904 credentials are stored in ipsec.secrets.
906 - IKEv2: Support for reauthentication when rekeying
908 - IKEv2: Support for transport mode
910 - fixed a lot of bugs related to byte order
912 - various other bugfixes
918 - IKEv1: Implementation of ModeConfig push mode via the new connection
919 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
921 - IKEv1: The command ipsec statusall now shows "DPD active" for all
922 ISAKMP SAs that are under active Dead Peer Detection control.
924 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
925 Instead of logger, special printf() functions are used to directly
926 print objects like hosts (%H) identifications (%D), certificates (%Q),
927 etc. The number of debugging levels have been reduced to:
929 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
931 The debugging levels can either be specified statically in ipsec.conf as
934 charondebug="lib 1, cfg 3, net 2"
936 or changed at runtime via stroke as
938 ipsec stroke loglevel cfg 2
944 - Implemented full support for IPv6-in-IPv6 tunnels.
946 - Added configuration options for dead peer detection in IKEv2. dpd_action
947 types "clear", "hold" and "restart" are supported. The dpd_timeout
948 value is not used, as the normal retransmission policy applies to
949 detect dead peers. The dpd_delay parameter enables sending of empty
950 informational message to detect dead peers in case of inactivity.
952 - Added support for preshared keys in IKEv2. PSK keys configured in
953 ipsec.secrets are loaded. The authby parameter specifies the authentication
954 method to authentificate ourself, the other peer may use PSK or RSA.
956 - Changed retransmission policy to respect the keyingtries parameter.
958 - Added private key decryption. PEM keys encrypted with AES-128/192/256
959 or 3DES are supported.
961 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
964 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
965 signed with such a hash algorithm.
967 - Added initial support for updown scripts. The actions up-host/client and
968 down-host/client are executed. The leftfirewall=yes parameter
969 uses the default updown script to insert dynamic firewall rules, a custom
970 updown script may be specified with the leftupdown parameter.
976 - Added support for the auto=route ipsec.conf parameter and the
977 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
978 CHILD_SAs dynamically on demand when traffic is detected by the
981 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
982 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
983 new keys are generated using perfect forward secrecy. An optional flag
984 which enforces reauthentication will be implemented later.
986 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
987 algorithm configuration statements.
993 - Full X.509 certificate trust chain verification has been implemented.
994 End entity certificates can be exchanged via CERT payloads. The current
995 default is leftsendcert=always, since CERTREQ payloads are not supported
996 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
998 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
999 would offer more possibilities for traffic selection, but the Linux kernel
1000 currently does not support it. That's why we stick with these simple
1001 ipsec.conf rules for now.
1003 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
1004 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
1007 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
1008 notify payloads to detect NAT routers between the peers. It switches
1009 to port 4500, uses UDP encapsulated ESP packets, handles peer address
1010 changes gracefully and sends keep alive message periodically.
1012 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
1013 rekeying, more shared code, cleaner design, proper retransmission
1014 and a more extensible code base.
1016 - The mixed PSK/RSA roadwarrior detection capability introduced by the
1017 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
1018 payloads by the responder right before any defined IKE Main Mode state had
1019 been established. Although any form of bad proposal syntax was being correctly
1020 detected by the payload parser, the subsequent error handler didn't check
1021 the state pointer before logging current state information, causing an
1022 immediate crash of the pluto keying daemon due to a NULL pointer.
1028 - Added algorithm selection to charon: New default algorithms for
1029 ike=aes128-sha-modp2048, as both daemons support it. The default
1030 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
1031 the ike/esp parameter the same way as pluto. As this syntax does
1032 not allow specification of a pseudo random function, the same
1033 algorithm as for integrity is used (currently sha/md5). Supported
1035 Encryption: aes128, aes192, aes256
1036 Integrity/PRF: md5, sha (using hmac)
1037 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
1039 Encryption: aes128, aes192, aes256, 3des, blowfish128,
1040 blowfish192, blowfish256
1041 Integrity: md5, sha1
1042 More IKE encryption algorithms will come after porting libcrypto into
1045 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
1046 perfect forward secrecy is used. The rekeying parameters rekey,
1047 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
1048 when using IKEv2. WARNING: charon currently is unable to handle
1049 simultaneous rekeying. To avoid such a situation, use a large
1050 rekeyfuzz, or even better, set rekey=no on one peer.
1052 - support for host2host, net2net, host2net (roadwarrior) tunnels
1053 using predefined RSA certificates (see uml scenarios for
1054 configuration examples).
1056 - new build environment featuring autotools. Features such
1057 as HTTP, LDAP and smartcard support may be enabled using
1058 the ./configure script. Changing install directories
1059 is possible, too. See ./configure --help for more details.
1061 - better integration of charon with ipsec starter, which allows
1062 (almost) transparent operation with both daemons. charon
1063 handles ipsec commands up, down, status, statusall, listall,
1064 listcerts and allows proper load, reload and delete of connections
1071 - initial support of the IKEv2 protocol. Connections in
1072 ipsec.conf designated by keyexchange=ikev2 are negotiated
1073 by the new IKEv2 charon keying daemon whereas those marked
1074 by keyexchange=ikev1 or the default keyexchange=ike are
1075 handled thy the IKEv1 pluto keying daemon. Currently only
1076 a limited subset of functions are available with IKEv2
1077 (Default AES encryption, authentication based on locally
1078 imported X.509 certificates, unencrypted private RSA keys
1079 in PKCS#1 file format, limited functionality of the ipsec
1086 - the dynamic iptables rules from the _updown_x509 template
1087 for KLIPS and the _updown_policy template for NETKEY have
1088 been merged into the default _updown script. The existing
1089 left|rightfirewall keyword causes the automatic insertion
1090 and deletion of ACCEPT rules for tunneled traffic upon
1091 the successful setup and teardown of an IPsec SA, respectively.
1092 left|rightfirwall can be used with KLIPS under any Linux 2.4
1093 kernel or with NETKEY under a Linux kernel version >= 2.6.16
1094 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
1095 kernel version < 2.6.16 which does not support IPsec policy
1096 matching yet, please continue to use a copy of the _updown_espmark
1097 template loaded via the left|rightupdown keyword.
1099 - a new left|righthostaccess keyword has been introduced which
1100 can be used in conjunction with left|rightfirewall and the
1101 default _updown script. By default leftfirewall=yes inserts
1102 a bi-directional iptables FORWARD rule for a local client network
1103 with a netmask different from 255.255.255.255 (single host).
1104 This does not allow to access the VPN gateway host via its
1105 internal network interface which is part of the client subnet
1106 because an iptables INPUT and OUTPUT rule would be required.
1107 lefthostaccess=yes will cause this additional ACCEPT rules to
1110 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
1111 payload is preparsed in order to find out whether the roadwarrior
1112 requests PSK or RSA so that a matching connection candidate can
1119 - the new _updown_policy template allows ipsec policy based
1120 iptables firewall rules. Required are iptables version
1121 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
1122 the _updown_espmark template, so that no INPUT mangle rules
1123 are required any more.
1125 - added support of DPD restart mode
1127 - ipsec starter now allows the use of wildcards in include
1128 statements as e.g. in "include /etc/my_ipsec/*.conf".
1129 Patch courtesy of Matthias Haas.
1131 - the Netscape OID 'employeeNumber' is now recognized and can be
1132 used as a Relative Distinguished Name in certificates.
1138 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
1139 command and not of ipsec setup any more.
1141 - ipsec starter now supports AH authentication in conjunction with
1142 ESP encryption. AH authentication is configured in ipsec.conf
1143 via the auth=ah parameter.
1145 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
1146 ipsec whack --scencrypt|scdecrypt <args>.
1148 - get_sa_info() now determines for the native netkey IPsec stack
1149 the exact time of the last use of an active eroute. This information
1150 is used by the Dead Peer Detection algorithm and is also displayed by
1151 the ipsec status command.
1157 - running under the native Linux 2.6 IPsec stack, the function
1158 get_sa_info() is called by ipsec auto --status to display the current
1159 number of transmitted bytes per IPsec SA.
1161 - get_sa_info() is also used by the Dead Peer Detection process to detect
1162 recent ESP activity. If ESP traffic was received from the peer within
1163 the last dpd_delay interval then no R_Y_THERE notification must be sent.
1165 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
1166 in ID_DER_ASN1_DN identities. The following notations are possible:
1168 rightid="unstructuredName=John Doe"
1169 rightid="UN=John Doe"
1171 - fixed a long-standing bug which caused PSK-based roadwarrior connections
1172 to segfault in the function id.c:same_id() called by keys.c:get_secret()
1173 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
1180 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
1182 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
1184 - in order to guarantee backwards-compatibility with the script-based
1185 auto function (e.g. auto --replace), the ipsec starter scripts stores
1186 the defaultroute information in the temporary file /var/run/ipsec.info.
1188 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
1189 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
1192 - the ipsec starter now also recognizes the parameters authby=never and
1193 type=passthrough|pass|drop|reject.
1199 - ipsec starter now supports the also parameter which allows
1200 a modular structure of the connection definitions. Thus
1201 "ipsec start" is now ready to replace "ipsec setup".
1207 - Mathieu Lafon's popular ipsec starter tool has been added to the
1208 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
1209 for his integration work. ipsec starter is a C program which is going
1210 to replace the various shell and awk starter scripts (setup, _plutoload,
1211 _plutostart, _realsetup, _startklips, _confread, and auto). Since
1212 ipsec.conf is now parsed only once, the starting of multiple tunnels is
1213 accelerated tremedously.
1215 - Added support of %defaultroute to the ipsec starter. If the IP address
1216 changes, a HUP signal to the ipsec starter will automatically
1217 reload pluto's connections.
1219 - moved most compile time configurations from pluto/Makefile to
1220 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
1221 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
1223 - removed the ipsec verify and ipsec newhostkey commands
1225 - fixed some 64-bit issues in formatted print statements
1227 - The scepclient functionality implementing the Simple Certificate
1228 Enrollment Protocol (SCEP) is nearly complete but hasn't been
1235 - CA certicates are now automatically loaded from a smartcard
1236 or USB crypto token and appear in the ipsec auto --listcacerts
1243 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
1244 library that does not support the C_Encrypt() Cryptoki
1245 function (e.g. OpenSC), the RSA encryption is done in
1246 software using the public key fetched from the smartcard.
1248 - The scepclient function now allows to define the
1249 validity of a self-signed certificate using the --days,
1250 --startdate, and --enddate options. The default validity
1251 has been changed from one year to five years.
1257 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
1258 interface to other applications for RSA encryption and decryption
1259 via the whack interface. Notation:
1261 ipsec whack --scencrypt <data>
1262 [--inbase 16|hex|64|base64|256|text|ascii]
1263 [--outbase 16|hex|64|base64|256|text|ascii]
1266 ipsec whack --scdecrypt <data>
1267 [--inbase 16|hex|64|base64|256|text|ascii]
1268 [--outbase 16|hex|64|base64|256|text|ascii]
1271 The default setting for inbase and outbase is hex.
1273 The new proxy interface can be used for securing symmetric
1274 encryption keys required by the cryptoloop or dm-crypt
1275 disk encryption schemes, especially in the case when
1276 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
1279 - if the file /etc/ipsec.secrets is lacking during the startup of
1280 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
1281 containing a 2048 bit RSA private key and a matching self-signed
1282 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
1283 is automatically generated by calling the function
1285 ipsec scepclient --out pkcs1 --out cert-self
1287 scepclient was written by Jan Hutter and Martin Willi, students
1288 at the University of Applied Sciences in Rapperswil, Switzerland.
1294 - the current extension of the PKCS#7 framework introduced
1295 a parsing error in PKCS#7 wrapped X.509 certificates that are
1296 e.g. transmitted by Windows XP when multi-level CAs are used.
1297 the parsing syntax has been fixed.
1299 - added a patch by Gerald Richter which tolerates multiple occurrences
1300 of the ipsec0 interface when using KLIPS.
1306 - with gawk-3.1.4 the word "default2 has become a protected
1307 keyword for use in switch statements and cannot be used any
1308 more in the strongSwan scripts. This problem has been
1309 solved by renaming "default" to "defaults" and "setdefault"
1310 in the scripts _confread and auto, respectively.
1312 - introduced the parameter leftsendcert with the values
1314 always|yes (the default, always send a cert)
1315 ifasked (send the cert only upon a cert request)
1316 never|no (never send a cert, used for raw RSA keys and
1319 - fixed the initialization of the ESP key length to a default of
1320 128 bits in the case that the peer does not send a key length
1321 attribute for AES encryption.
1323 - applied Herbert Xu's uniqueIDs patch
1325 - applied Herbert Xu's CLOEXEC patches
1331 - CRLs can now be cached also in the case when the issuer's
1332 certificate does not contain a subjectKeyIdentifier field.
1333 In that case the subjectKeyIdentifier is computed by pluto as the
1334 160 bit SHA-1 hash of the issuer's public key in compliance
1335 with section 4.2.1.2 of RFC 3280.
1337 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
1338 not only multiple Quick Modes of a given connection but also
1339 multiple connections between two security gateways.
1345 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
1346 installed either by setting auto=route in ipsec.conf or by
1347 a connection put into hold, generates an XFRM_AQUIRE event
1348 for each packet that wants to use the not-yet exisiting
1349 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
1350 the Quick Mode queue, causing multiple IPsec SA to be
1351 established in rapid succession. Starting with strongswan-2.5.1
1352 only a single IPsec SA is established per host-pair connection.
1354 - Right after loading the PKCS#11 module, all smartcard slots are
1355 searched for certificates. The result can be viewed using
1358 ipsec auto --listcards
1360 The certificate objects found in the slots are numbered
1361 starting with #1, #2, etc. This position number can be used to address
1362 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
1363 in ipsec.conf and ipsec.secrets, respectively:
1365 %smartcard (selects object #1)
1366 %smartcard#1 (selects object #1)
1367 %smartcard#3 (selects object #3)
1369 As an alternative the existing retrieval scheme can be used:
1371 %smartcard:45 (selects object with id=45)
1372 %smartcard0 (selects first object in slot 0)
1373 %smartcard4:45 (selects object in slot 4 with id=45)
1375 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
1376 private key flags either C_Sign() or C_Decrypt() is used
1377 to generate a signature.
1379 - The output buffer length parameter siglen in C_Sign()
1380 is now initialized to the actual size of the output
1381 buffer prior to the function call. This fixes the
1382 CKR_BUFFER_TOO_SMALL error that could occur when using
1383 the OpenSC PKCS#11 module.
1385 - Changed the initialization of the PKCS#11 CK_MECHANISM in
1386 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
1388 - Refactored the RSA public/private key code and transferred it
1389 from keys.c to the new pkcs1.c file as a preparatory step
1390 towards the release of the SCEP client.
1396 - The loading of a PKCS#11 smartcard library module during
1397 runtime does not require OpenSC library functions any more
1398 because the corresponding code has been integrated into
1399 smartcard.c. Also the RSAREF pkcs11 header files have been
1400 included in a newly created pluto/rsaref directory so that
1401 no external include path has to be defined any longer.
1403 - A long-awaited feature has been implemented at last:
1404 The local caching of CRLs fetched via HTTP or LDAP, activated
1405 by the parameter cachecrls=yes in the config setup section
1406 of ipsec.conf. The dynamically fetched CRLs are stored under
1407 a unique file name containing the issuer's subjectKeyID
1408 in /etc/ipsec.d/crls.
1410 - Applied a one-line patch courtesy of Michael Richardson
1411 from the Openswan project which fixes the kernel-oops
1412 in KLIPS when an snmp daemon is running on the same box.
1418 - Eliminated null length CRL distribution point strings.
1420 - Fixed a trust path evaluation bug introduced with 2.4.3
1426 - Improved the joint OCSP / CRL revocation policy.
1427 OCSP responses have precedence over CRL entries.
1429 - Introduced support of CRLv2 reason codes.
1431 - Fixed a bug with key-pad equipped readers which caused
1432 pluto to prompt for the pin via the console when the first
1433 occasion to enter the pin via the key-pad was missed.
1435 - When pluto is built with LDAP_V3 enabled, the library
1436 liblber required by newer versions of openldap is now
1443 - Added the _updown_espmark template which requires all
1444 incoming ESP traffic to be marked with a default mark
1447 - Introduced the pkcs11keepstate parameter in the config setup
1448 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
1449 session and login states are kept as long as possible during
1450 the lifetime of pluto. This means that a PIN entry via a key
1451 pad has to be done only once.
1453 - Introduced the pkcs11module parameter in the config setup
1454 section of ipsec.conf which specifies the PKCS#11 module
1455 to be used with smart cards. Example:
1457 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
1459 - Added support of smartcard readers equipped with a PIN pad.
1461 - Added patch by Jay Pfeifer which detects when netkey
1462 modules have been statically built into the Linux 2.6 kernel.
1464 - Added two patches by Herbert Xu. The first uses ip xfrm
1465 instead of setkey to flush the IPsec policy database. The
1466 second sets the optional flag in inbound IPComp SAs only.
1468 - Applied Ulrich Weber's patch which fixes an interoperability
1469 problem between native IPsec and KLIPS systems caused by
1470 setting the replay window to 32 instead of 0 for ipcomp.
1476 - Fixed a bug which caused an unwanted Mode Config request
1477 to be initiated in the case where "right" was used to denote
1478 the local side in ipsec.conf and "left" the remote side,
1479 contrary to the recommendation that "right" be remote and
1486 - updated Vendor ID to strongSwan-2.4.0
1488 - updated copyright statement to include David Buechi and
1495 - strongSwan now communicates with attached smartcards and
1496 USB crypto tokens via the standardized PKCS #11 interface.
1497 By default the OpenSC library from www.opensc.org is used
1498 but any other PKCS#11 library could be dynamically linked.
1499 strongSwan's PKCS#11 API was implemented by David Buechi
1500 and Michael Meier, both graduates of the Zurich University
1501 of Applied Sciences in Winterthur, Switzerland.
1503 - When a %trap eroute is triggered by an outgoing IP packet
1504 then the native IPsec stack of the Linux 2.6 kernel [often/
1505 always?] returns an XFRM_ACQUIRE message with an undefined
1506 protocol family field and the connection setup fails.
1507 As a workaround IPv4 (AF_INET) is now assumed.
1509 - the results of the UML test scenarios are now enhanced
1510 with block diagrams of the virtual network topology used
1511 in a particular test.
1517 - fixed IV used to decrypt informational messages.
1518 This bug was introduced with Mode Config functionality.
1520 - fixed NCP Vendor ID.
1522 - undid one of Ulrich Weber's maximum udp size patches
1523 because it caused a segmentation fault with NAT-ed
1526 - added UML scenarios wildcards and attr-cert which
1527 demonstrate the implementation of IPsec policies based
1528 on wildcard parameters contained in Distinguished Names and
1529 on X.509 attribute certificates, respectively.
1535 - Added basic Mode Config functionality
1537 - Added Mathieu Lafon's patch which upgrades the status of
1538 the NAT-Traversal implementation to RFC 3947.
1540 - The _startklips script now also loads the xfrm4_tunnel
1543 - Added Ulrich Weber's netlink replay window size and
1544 maximum udp size patches.
1546 - UML testing now uses the Linux 2.6.10 UML kernel by default.
1552 - Eric Marchionni and Patrik Rayo, both recent graduates from
1553 the Zuercher Hochschule Winterthur in Switzerland, created a
1554 User-Mode-Linux test setup for strongSwan. For more details
1555 please read the INSTALL and README documents in the testing
1558 - Full support of group attributes based on X.509 attribute
1559 certificates. Attribute certificates can be generated
1560 using the openac facility. For more details see
1564 The group attributes can be used in connection definitions
1565 in order to give IPsec access to specific user groups.
1566 This is done with the new parameter left|rightgroups as in
1568 rightgroups="Research, Sales"
1570 giving access to users possessing the group attributes
1571 Research or Sales, only.
1573 - In Quick Mode clients with subnet mask /32 are now
1574 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
1575 fix rekeying problems with the SafeNet/SoftRemote and NCP
1576 Secure Entry Clients.
1578 - Changed the defaults of the ikelifetime and keylife parameters
1579 to 3h and 1h, respectively. The maximum allowable values are
1580 now both set to 24 h.
1582 - Suppressed notification wars between two IPsec peers that
1583 could e.g. be triggered by incorrect ISAKMP encryption.
1585 - Public RSA keys can now have identical IDs if either the
1586 issuing CA or the serial number is different. The serial
1587 number of a certificate is now shown by the command
1589 ipsec auto --listpubkeys
1595 - Added Tuomo Soini's sourceip feature which allows a strongSwan
1596 roadwarrior to use a fixed Virtual IP (see README section 2.6)
1597 and reduces the well-known four tunnel case on VPN gateways to
1598 a single tunnel definition (see README section 2.4).
1600 - Fixed a bug occuring with NAT-Traversal enabled when the responder
1601 suddenly turns initiator and the initiator cannot find a matching
1602 connection because of the floated IKE port 4500.
1604 - Removed misleading ipsec verify command from barf.
1606 - Running under the native IP stack, ipsec --version now shows
1607 the Linux kernel version (courtesy to the Openswan project).
1613 - Introduced the ipsec auto --listalgs monitoring command which lists
1614 all currently registered IKE and ESP algorithms.
1616 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
1617 is set and the first proposed transform does not match.
1619 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
1620 occuring when a smartcard is present.
1622 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
1624 - Fixed the printing of the notification names (null)
1626 - Applied another of Herbert Xu's Netlink patches.
1632 - Support of Dead Peer Detection. The connection parameter
1634 dpdaction=clear|hold
1636 activates DPD for the given connection.
1638 - The default Opportunistic Encryption (OE) policy groups are not
1639 automatically included anymore. Those wishing to activate OE can include
1640 the policy group with the following statement in ipsec.conf:
1642 include /etc/ipsec.d/examples/oe.conf
1644 The default for [right|left]rsasigkey is now set to %cert.
1646 - strongSwan now has a Vendor ID of its own which can be activated
1647 using the compile option VENDORID
1649 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
1651 - Applied Herbert Xu's patch fixing an ESPINUDP problem
1653 - Applied Herbert Xu's patch setting source/destination port numbers.
1655 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
1656 lost during the migration from SuperFreeS/WAN.
1658 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
1660 - Fixed the unsharing of alg parameters when instantiating group
1667 - Thomas Walpuski made me aware of a potential DoS attack via
1668 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
1669 certificates in Pluto's authority certificate store. This vulnerability
1670 was fixed by establishing trust in CA candidate certificates up to a
1671 trusted root CA prior to insertion into Pluto's chained list.
1673 - replaced the --assign option by the -v option in the auto awk script
1674 in order to make it run with mawk under debian/woody.
1680 - Split of the status information between ipsec auto --status (concise)
1681 and ipsec auto --statusall (verbose). Both commands can be used with
1682 an optional connection selector:
1684 ipsec auto --status[all] <connection_name>
1686 - Added the description of X.509 related features to the ipsec_auto(8)
1689 - Hardened the ASN.1 parser in debug mode, especially the printing
1690 of malformed distinguished names.
1692 - The size of an RSA public key received in a certificate is now restricted to
1694 512 bits <= modulus length <= 8192 bits.
1696 - Fixed the debug mode enumeration.
1702 - Fixed another PKCS#7 vulnerability which could lead to an
1703 endless loop while following the X.509 trust chain.
1709 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
1710 that accepted end certificates having identical issuer and subject
1711 distinguished names in a multi-tier X.509 trust chain.
1717 - Removed all remaining references to ipsec_netlink.h in KLIPS.
1723 - The new "ca" section allows to define the following parameters:
1726 cacert=koolCA.pem # cacert of kool CA
1727 ocspuri=http://ocsp.kool.net:8001 # ocsp server
1728 ldapserver=ldap.kool.net # default ldap server
1729 crluri=http://www.kool.net/kool.crl # crl distribution point
1730 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
1731 auto=add # add, ignore
1733 The ca definitions can be monitored via the command
1735 ipsec auto --listcainfos
1737 - Fixed cosmetic corruption of /proc filesystem by integrating
1738 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
1744 - Added support for the 818043 NAT-Traversal update of Microsoft's
1745 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
1747 - A symbolic link to libcrypto is now added in the kernel sources
1748 during kernel compilation
1750 - Fixed a couple of 64 bit issues (mostly casts to int).
1751 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
1753 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
1754 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
1755 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
1761 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
1762 certificate extension which contains no generalName item) can cause
1763 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
1764 been hardened to make it more robust against malformed ASN.1 objects.
1766 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
1767 Linux 2.6 IPsec stack.
1773 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12
projects / strongswan.git / blob