4 - The IKEv1 and IKEV2 daemons now check certificate path length constraints.
6 - More detailed IKEv2 EAP payload information in debug output
8 - IKEv2 EAP-SIM and EAP-AKA share joint libsimaka library
14 - The IKEv1 pluto daemon can now use SQL-based address pools to deal out
15 virtual IP addresses as a Mode Config server. The pool capability has been
16 migrated from charon's sql plugin to a new attr-sql plugin which is loaded
17 by libstrongswan and which can be used by both daemons either with a SQLite
18 or MySQL database and the corresponding plugin.
20 - Plugin names have been streamlined: EAP plugins now have a dash after eap
21 (e.g. eap-sim), as it is used with the --enable-eap-sim ./configure option.
22 Plugin configuration sections in strongswan.conf now use the same name as the
23 plugin itself (i.e. with a dash). Make sure to update "load" directives and
24 the affected plugin sections in existing strongswan.conf files.
26 - The private/public key parsing and encoding has been split up into
27 separate pkcs1, pgp, pem and dnskey plugins. The public key implementation
28 plugins gmp, gcrypt and openssl can all make use of them.
30 - The EAP-AKA plugin can use different backends for USIM/quintuplet
31 calculations, very similar to the EAP-SIM plugin. The existing 3GPP2 software
32 implementation has been migrated to a separate plugin.
34 - The IKEv2 daemon charon gained basic PGP support. It can use locally installed
35 peer certificates and can issue signatures based on RSA private keys.
37 - The new 'ipsec pki' tool provides a set of commands to maintain a public
38 key infrastructure. It currently supports operations to create RSA and ECDSA
39 private/public keys, calculate fingerprints and issue or verify certificates.
41 - Charon uses a monotonic time source for statistics and job queueing, behaving
42 correctly if the system time changes (e.g. when using NTP).
44 - In addition to time based rekeying, charon supports IPsec SA lifetimes based
45 on processed volume or number of packets. They new ipsec.conf paramaters
46 'lifetime' (an alias to 'keylife'), 'lifebytes' and 'lifepackets' handle
47 SA timeouts, while the parameters 'margintime' (an alias to rekeymargin),
48 'marginbytes' and 'marginpackets' trigger the rekeying before a SA expires.
49 The existing parameter 'rekeyfuzz' affects all margins.
51 - If no CA/Gateway certificate is specified in the NetworkManager plugin,
52 charon uses a set of trusted root certificates preinstalled by distributions.
53 The directory containing CA certificates can be specified using the
54 --with-nm-ca-dir=path configure option.
56 - Fixed the encoding of the Email relative distinguished name in left|rightid
59 - Fixed the broken parsing of PKCS#7 wrapped certificates by the pluto daemon.
61 - Fixed smartcard-based authentication in the pluto daemon which was broken by
62 the ECDSA support introduced with the 4.3.2 release.
64 - A patch contributed by Heiko Hund fixes mixed IPv6 in IPv4 and vice versa
65 tunnels established with the IKEv1 pluto daemon.
67 - The pluto daemon now uses the libstrongswan x509 plugin for certificates and
68 CRls and the struct id type was replaced by identification_t used by charon
69 and the libstrongswan library.
75 - IKEv2 charon daemon ported to FreeBSD and Mac OS X. Installation details can
76 be found on wiki.strongswan.org.
78 - ipsec statusall shows the number of bytes transmitted and received over
79 ESP connections configured by the IKEv2 charon daemon.
81 - The IKEv2 charon daemon supports include files in ipsec.secrets.
87 - The configuration option --enable-integrity-test plus the strongswan.conf
88 option libstrongswan.integrity_test = yes activate integrity tests
89 of the IKE daemons charon and pluto, libstrongswan and all loaded
90 plugins. Thus dynamic library misconfigurations and non-malicious file
91 manipulations can be reliably detected.
93 - The new default setting libstrongswan.ecp_x_coordinate_only=yes allows
94 IKEv1 interoperability with MS Windows using the ECP DH groups 19 and 20.
96 - The IKEv1 pluto daemon now supports the AES-CCM and AES-GCM ESP
97 authenticated encryption algorithms.
99 - The IKEv1 pluto daemon now supports V4 OpenPGP keys.
101 - The RDN parser vulnerability discovered by Orange Labs research team
102 was not completely fixed in version 4.3.2. Some more modifications
103 had to be applied to the asn1_length() function to make it robust.
109 - The new gcrypt plugin provides symmetric cipher, hasher, RNG, Diffie-Hellman
110 and RSA crypto primitives using the LGPL licensed GNU gcrypt library.
112 - libstrongswan features an integrated crypto selftest framework for registered
113 algorithms. The test-vector plugin provides a first set of test vectors and
114 allows pluto and charon to rely on tested crypto algorithms.
116 - pluto can now use all libstrongswan plugins with the exception of x509 and xcbc.
117 Thanks to the openssl plugin, the ECP Diffie-Hellman groups 19, 20, 21, 25, and
118 26 as well as ECDSA-256, ECDSA-384, and ECDSA-521 authentication can be used
121 - Applying their fuzzing tool, the Orange Labs vulnerability research team found
122 another two DoS vulnerabilities, one in the rather old ASN.1 parser of Relative
123 Distinguished Names (RDNs) and a second one in the conversion of ASN.1 UTCTIME
124 and GENERALIZEDTIME strings to a time_t value.
130 - The nm plugin now passes DNS/NBNS server information to NetworkManager,
131 allowing a gateway administrator to set DNS/NBNS configuration on clients
134 - The nm plugin also accepts CA certificates for gateway authentication. If
135 a CA certificate is configured, strongSwan uses the entered gateway address
136 as its idenitity, requiring the gateways certificate to contain the same as
137 subjectAltName. This allows a gateway administrator to deploy the same
138 certificates to Windows 7 and NetworkManager clients.
140 - The command ipsec purgeike deletes IKEv2 SAs that don't have a CHILD SA.
141 The command ipsec down <conn>{n} deletes CHILD SA instance n of connection
142 <conn> whereas ipsec down <conn>{*} deletes all CHILD SA instances.
143 The command ipsec down <conn>[n] deletes IKE SA instance n of connection
144 <conn> plus dependent CHILD SAs whereas ipsec down <conn>[*] deletes all
145 IKE SA instances of connection <conn>.
147 - Fixed a regression introduced in 4.3.0 where EAP authentication calculated
148 the AUTH payload incorrectly. Further, the EAP-MSCHAPv2 MSK key derivation
149 has been updated to be compatible with the Windows 7 Release Candidate.
151 - Refactored installation of triggering policies. Routed policies are handled
152 outside of IKE_SAs to keep them installed in any case. A tunnel gets
153 established only once, even if initiation is delayed due network outages.
155 - Improved the handling of multiple acquire signals triggered by the kernel.
157 - Fixed two DoS vulnerabilities in the charon daemon that were discovered by
158 fuzzing techniques: 1) Sending a malformed IKE_SA_INIT request leaved an
159 incomplete state which caused a null pointer dereference if a subsequent
160 CREATE_CHILD_SA request was sent. 2) Sending an IKE_AUTH request with either
161 a missing TSi or TSr payload caused a null pointer derefence because the
162 checks for TSi and TSr were interchanged. The IKEv2 fuzzer used was
163 developped by the Orange Labs vulnerability research team. The tool was
164 initially written by Gabriel Campana and is now maintained by Laurent Butti.
166 - Added support for AES counter mode in ESP in IKEv2 using the proposal
167 keywords aes128ctr, aes192ctr and aes256ctr.
169 - Further progress in refactoring pluto: Use of the curl and ldap plugins
170 for fetching crls and OCSP. Use of the random plugin to get keying material
171 from /dev/random or /dev/urandom. Use of the openssl plugin as an alternative
172 to the aes, des, sha1, sha2, and md5 plugins. The blowfish, twofish, and
173 serpent encryption plugins are now optional and are not enabled by default.
179 - Support for the IKEv2 Multiple Authentication Exchanges extension (RFC4739).
180 Initiators and responders can use several authentication rounds (e.g. RSA
181 followed by EAP) to authenticate. The new ipsec.conf leftauth/rightauth and
182 leftauth2/rightauth2 parameters define own authentication rounds or setup
183 constraints for the remote peer. See the ipsec.conf man page for more detials.
185 - If glibc printf hooks (register_printf_function) are not available,
186 strongSwan can use the vstr string library to run on non-glibc systems.
188 - The IKEv2 charon daemon can now configure the ESP CAMELLIA-CBC cipher
189 (esp=camellia128|192|256).
191 - Refactored the pluto and scepclient code to use basic functions (memory
192 allocation, leak detective, chunk handling, printf_hooks, strongswan.conf
193 attributes, ASN.1 parser, etc.) from the libstrongswan library.
195 - Up to two DNS and WINS servers to be sent via IKEv1 ModeConfig can be
196 configured in the pluto section of strongswan.conf.
202 - The new server-side EAP RADIUS plugin (--enable-eap-radius)
203 relays EAP messages to and from a RADIUS server. Succesfully
204 tested with with a freeradius server using EAP-MD5 and EAP-SIM.
206 - A vulnerability in the Dead Peer Detection (RFC 3706) code was found by
207 Gerd v. Egidy <gerd.von.egidy@intra2net.com> of Intra2net AG affecting
208 all Openswan and strongSwan releases. A malicious (or expired ISAKMP)
209 R_U_THERE or R_U_THERE_ACK Dead Peer Detection packet can cause the
210 pluto IKE daemon to crash and restart. No authentication or encryption
211 is required to trigger this bug. One spoofed UDP packet can cause the
212 pluto IKE daemon to restart and be unresponsive for a few seconds while
213 restarting. This DPD null state vulnerability has been officially
214 registered as CVE-2009-0790 and is fixed by this release.
216 - ASN.1 to time_t conversion caused a time wrap-around for
217 dates after Jan 18 03:14:07 UTC 2038 on 32-bit platforms.
218 As a workaround such dates are set to the maximum representable
219 time, i.e. Jan 19 03:14:07 UTC 2038.
221 - Distinguished Names containing wildcards (*) are not sent in the
228 - Fixed a use-after-free bug in the DPD timeout section of the
229 IKEv1 pluto daemon which sporadically caused a segfault.
231 - Fixed a crash in the IKEv2 charon daemon occuring with
232 mixed RAM-based and SQL-based virtual IP address pools.
234 - Fixed ASN.1 parsing of algorithmIdentifier objects where the
235 parameters field is optional.
237 - Ported nm plugin to NetworkManager 7.1.
243 - Support of the EAP-MSCHAPv2 protocol enabled by the option
244 --enable-eap-mschapv2. Requires the MD4 hash algorithm enabled
245 either by --enable-md4 or --enable-openssl.
247 - Assignment of up to two DNS and up to two WINS servers to peers via
248 the IKEv2 Configuration Payload (CP). The IPv4 or IPv6 nameserver
249 addresses are defined in strongswan.conf.
251 - The strongSwan applet for the Gnome NetworkManager is now built and
252 distributed as a separate tarball under the name NetworkManager-strongswan.
258 - Fixed ESP NULL encryption broken by the refactoring of keymat.c.
259 Also introduced proper initialization and disposal of keying material.
261 - Fixed the missing listing of connection definitions in ipsec statusall
262 broken by an unfortunate local variable overload.
268 - Several performance improvements to handle thousands of tunnels with almost
269 linear upscaling. All relevant data structures have been replaced by faster
270 counterparts with better lookup times.
272 - Better parallelization to run charon on multiple cores. Due to improved
273 ressource locking and other optimizations the daemon can take full
274 advantage of 16 or even more cores.
276 - The load-tester plugin can use a NULL Diffie-Hellman group and simulate
277 unique identities and certificates by signing peer certificates using a CA
280 - The redesigned stroke in-memory IP pool handles leases. The "ipsec leases"
281 command queries assigned leases.
283 - Added support for smartcards in charon by using the ENGINE API provided by
284 OpenSSL, based on patches by Michael Roßberg.
286 - The Padlock plugin supports the hardware RNG found on VIA CPUs to provide a
287 reliable source of randomness.
292 - Flexible configuration of logging subsystem allowing to log to multiple
293 syslog facilities or to files using fine-grained log levels for each target.
295 - Load testing plugin to do stress testing of the IKEv2 daemon against self
296 or another host. Found and fixed issues during tests in the multi-threaded
297 use of the OpenSSL plugin.
299 - Added profiling code to synchronization primitives to find bottlenecks if
300 running on multiple cores. Found and fixed an issue where parts of the
301 Diffie-Hellman calculation acquired an exclusive lock. This greatly improves
302 parallelization to multiple cores.
304 - updown script invocation has been separated into a plugin of its own to
305 further slim down the daemon core.
307 - Separated IKE_SA/CHILD_SA key derivation process into a closed system,
308 allowing future implementations to use a secured environment in e.g. kernel
311 - The kernel interface of charon has been modularized. XFRM NETLINK (default)
312 and PFKEY (--enable-kernel-pfkey) interface plugins for the native IPsec
313 stack of the Linux 2.6 kernel as well as a PFKEY interface for the KLIPS
314 IPsec stack (--enable-kernel-klips) are provided.
316 - Basic Mobile IPv6 support has been introduced, securing Binding Update
317 messages as well as tunneled traffic between Mobile Node and Home Agent.
318 The installpolicy=no option allows peaceful cooperation with a dominant
319 mip6d daemon and the new type=transport_proxy implements the special MIPv6
320 IPsec transport proxy mode where the IKEv2 daemon uses the Care-of-Address
321 but the IPsec SA is set up for the Home Adress.
323 - Implemented migration of Mobile IPv6 connections using the KMADDRESS
324 field contained in XFRM_MSG_MIGRATE messages sent by the mip6d daemon
325 via the Linux 2.6.28 (or appropriately patched) kernel.
331 - IKEv2 charon daemon supports authentication based on raw public keys
332 stored in the SQL database backend. The ipsec listpubkeys command
333 lists the available raw public keys via the stroke interface.
335 - Several MOBIKE improvements: Detect changes in NAT mappings in DPD exchanges,
336 handle events if kernel detects NAT mapping changes in UDP-encapsulated
337 ESP packets (requires kernel patch), reuse old addesses in MOBIKE updates as
338 long as possible and other fixes.
340 - Fixed a bug in addr_in_subnet() which caused insertion of wrong source
341 routes for destination subnets having netwmasks not being a multiple of 8 bits.
342 Thanks go to Wolfgang Steudel, TU Ilmenau for reporting this bug.
348 - Fixed a Denial-of-Service vulnerability where an IKE_SA_INIT message with
349 a KE payload containing zeroes only can cause a crash of the IKEv2 charon
350 daemon due to a NULL pointer returned by the mpz_export() function of the
351 GNU Multiprecision Library (GMP). Thanks go to Mu Dynamics Research Labs
352 for making us aware of this problem.
354 - The new agent plugin provides a private key implementation on top of an
357 - The NetworkManager plugin has been extended to support certificate client
358 authentication using RSA keys loaded from a file or using ssh-agent.
360 - Daemon capability dropping has been ported to libcap and must be enabled
361 explicitly --with-capabilities=libcap. Future version will support the
362 newer libcap2 library.
364 - ipsec listalgs lists the IKEv2 cryptografic algorithms registered with the
365 charon keying daemon.
371 - A NetworkManager plugin allows GUI-based configuration of road-warrior
372 clients in a simple way. It features X509 based gateway authentication
373 and EAP client authentication, tunnel setup/teardown and storing passwords
374 in the Gnome Keyring.
376 - A new EAP-GTC plugin implements draft-sheffer-ikev2-gtc-00.txt and allows
377 username/password authentication against any PAM service on the gateway.
378 The new EAP method interacts nicely with the NetworkManager plugin and allows
379 client authentication against e.g. LDAP.
381 - Improved support for the EAP-Identity method. The new ipsec.conf eap_identity
382 parameter defines an additional identity to pass to the server in EAP
385 - The "ipsec statusall" command now lists CA restrictions, EAP
386 authentication types and EAP identities.
388 - Fixed two multithreading deadlocks occurring when starting up
389 several hundred tunnels concurrently.
391 - Fixed the --enable-integrity-test configure option which
392 computes a SHA-1 checksum over the libstrongswan library.
398 - Consistent logging of IKE and CHILD SAs at the audit (AUD) level.
400 - Improved the performance of the SQL-based virtual IP address pool
401 by introducing an additional addresses table. The leases table
402 storing only history information has become optional and can be
403 disabled by setting charon.plugins.sql.lease_history = no in
406 - The XFRM_STATE_AF_UNSPEC flag added to xfrm.h allows IPv4-over-IPv6
407 and IPv6-over-IPv4 tunnels with the 2.6.26 and later Linux kernels.
409 - management of different virtual IP pools for different
410 network interfaces have become possible.
412 - fixed a bug which prevented the assignment of more than 256
413 virtual IP addresses from a pool managed by an sql database.
415 - fixed a bug which did not delete own IPCOMP SAs in the kernel.
421 - Added statistics functions to ipsec pool --status and ipsec pool --leases
422 and input validation checks to various ipsec pool commands.
424 - ipsec statusall now lists all loaded charon plugins and displays
425 the negotiated IKEv2 cipher suite proposals.
427 - The openssl plugin supports the elliptic curve Diffie-Hellman groups
428 19, 20, 21, 25, and 26.
430 - The openssl plugin supports ECDSA authentication using elliptic curve
433 - Fixed a bug in stroke which caused multiple charon threads to close
434 the file descriptors during packet transfers over the stroke socket.
436 - ESP sequence numbers are now migrated in IPsec SA updates handled by
437 MOBIKE. Works only with Linux kernels >= 2.6.17.
443 - Fixed the strongswan.conf path configuration problem that occurred when
444 --sysconfig was not set explicitly in ./configure.
446 - Fixed a number of minor bugs that where discovered during the 4th
447 IKEv2 interoperability workshop in San Antonio, TX.
453 - Plugins for libstrongswan and charon can optionally be loaded according
454 to a configuration in strongswan.conf. Most components provide a
455 "load = " option followed by a space separated list of plugins to load.
456 This allows e.g. the fallback from a hardware crypto accelerator to
457 to software-based crypto plugins.
459 - Charons SQL plugin has been extended by a virtual IP address pool.
460 Configurations with a rightsourceip=%poolname setting query a SQLite or
461 MySQL database for leases. The "ipsec pool" command helps in administrating
462 the pool database. See ipsec pool --help for the available options
464 - The Authenticated Encryption Algorithms AES-CCM-8/12/16 and AES-GCM-8/12/16
465 for ESP are now supported starting with the Linux 2.6.25 kernel. The
466 syntax is e.g. esp=aes128ccm12 or esp=aes256gcm16.
472 - Support for "Hash and URL" encoded certificate payloads has been implemented
473 in the IKEv2 daemon charon. Using the "certuribase" option of a CA section
474 allows to assign a base URL to all certificates issued by the specified CA.
475 The final URL is then built by concatenating that base and the hex encoded
476 SHA1 hash of the DER encoded certificate. Note that this feature is disabled
477 by default and must be enabled using the option "charon.hash_and_url".
479 - The IKEv2 daemon charon now supports the "uniqueids" option to close multiple
480 IKE_SAs with the same peer. The option value "keep" prefers existing
481 connection setups over new ones, where the value "replace" replaces existing
484 - The crypto factory in libstrongswan additionaly supports random number
485 generators, plugins may provide other sources of randomness. The default
486 plugin reads raw random data from /dev/(u)random.
488 - Extended the credential framework by a caching option to allow plugins
489 persistent caching of fetched credentials. The "cachecrl" option has been
492 - The new trustchain verification introduced in 4.2.0 has been parallelized.
493 Threads fetching CRL or OCSP information no longer block other threads.
495 - A new IKEv2 configuration attribute framework has been introduced allowing
496 plugins to provide virtual IP addresses, and in the future, other
497 configuration attribute services (e.g. DNS/WINS servers).
499 - The stroke plugin has been extended to provide virtual IP addresses from
500 a pool defined in ipsec.conf. The "rightsourceip" parameter now accepts
501 address pools in CIDR notation (e.g. 10.1.1.0/24). The parameter also accepts
502 the value "%poolname", where "poolname" identifies a pool provided by a
505 - Fixed compilation on uClibc and a couple of other minor bugs.
507 - Set DPD defaults in ipsec starter to dpd_delay=30s and dpd_timeout=150s.
509 - The IKEv1 pluto daemon now supports the ESP encryption algorithm CAMELLIA
510 with key lengths of 128, 192, and 256 bits, as well as the authentication
511 algorithm AES_XCBC_MAC. Configuration example: esp=camellia192-aesxcbc.
517 - libstrongswan has been modularized to attach crypto algorithms,
518 credential implementations (keys, certificates) and fetchers dynamically
519 through plugins. Existing code has been ported to plugins:
520 - RSA/Diffie-Hellman implementation using the GNU Multi Precision library
521 - X509 certificate system supporting CRLs, OCSP and attribute certificates
522 - Multiple plugins providing crypto algorithms in software
523 - CURL and OpenLDAP fetcher
525 - libstrongswan gained a relational database API which uses pluggable database
526 providers. Plugins for MySQL and SQLite are available.
528 - The IKEv2 keying daemon charon is more extensible. Generic plugins may provide
529 connection configuration, credentials and EAP methods or control the daemon.
530 Existing code has been ported to plugins:
531 - EAP-AKA, EAP-SIM, EAP-MD5 and EAP-Identity
532 - stroke configuration, credential and control (compatible to pluto)
533 - XML bases management protocol to control and query the daemon
534 The following new plugins are available:
535 - An experimental SQL configuration, credential and logging plugin on
536 top of either MySQL or SQLite
537 - A unit testing plugin to run tests at daemon startup
539 - The authentication and credential framework in charon has been heavily
540 refactored to support modular credential providers, proper
541 CERTREQ/CERT payload exchanges and extensible authorization rules.
543 - The framework of strongSwan Manager has envolved to the web application
544 framework libfast (FastCGI Application Server w/ Templates) and is usable
545 by other applications.
551 - IKE rekeying in NAT situations did not inherit the NAT conditions
552 to the rekeyed IKE_SA so that the UDP encapsulation was lost with
553 the next CHILD_SA rekeying.
555 - Wrong type definition of the next_payload variable in id_payload.c
556 caused an INVALID_SYNTAX error on PowerPC platforms.
558 - Implemented IKEv2 EAP-SIM server and client test modules that use
559 triplets stored in a file. For details on the configuration see
560 the scenario 'ikev2/rw-eap-sim-rsa'.
566 - Fixed error in the ordering of the certinfo_t records in the ocsp cache that
567 caused multiple entries of the same serial number to be created.
569 - Implementation of a simple EAP-MD5 module which provides CHAP
570 authentication. This may be interesting in conjunction with certificate
571 based server authentication, as weak passwords can't be brute forced
572 (in contradiction to traditional IKEv2 PSK).
574 - A complete software based implementation of EAP-AKA, using algorithms
575 specified in 3GPP2 (S.S0055). This implementation does not use an USIM,
576 but reads the secrets from ipsec.secrets. Make sure to read eap_aka.h
579 - Support for vendor specific EAP methods using Expanded EAP types. The
580 interface to EAP modules has been slightly changed, so make sure to
581 check the changes if you're already rolling your own modules.
587 - The default _updown script now dynamically inserts and removes ip6tables
588 firewall rules if leftfirewall=yes is set in IPv6 connections. New IPv6
589 net-net and roadwarrior (PSK/RSA) scenarios for both IKEv1 and IKEV2 were
592 - Implemented RFC4478 repeated authentication to force EAP/Virtual-IP clients
593 to reestablish an IKE_SA within a given timeframe.
595 - strongSwan Manager supports configuration listing, initiation and termination
596 of IKE and CHILD_SAs.
598 - Fixes and improvements to multithreading code.
600 - IKEv2 plugins have been renamed to libcharon-* to avoid naming conflicts.
601 Make sure to remove the old plugins in $libexecdir/ipsec, otherwise they get
608 - Removed recursive pthread mutexes since uClibc doesn't support them.
614 - In NAT traversal situations and multiple queued Quick Modes,
615 those pending connections inserted by auto=start after the
616 port floating from 500 to 4500 were erronously deleted.
618 - Added a "forceencaps" connection parameter to enforce UDP encapsulation
619 to surmount restrictive firewalls. NAT detection payloads are faked to
620 simulate a NAT situation and trick the other peer into NAT mode (IKEv2 only).
622 - Preview of strongSwan Manager, a web based configuration and monitoring
623 application. It uses a new XML control interface to query the IKEv2 daemon
624 (see http://trac.strongswan.org/wiki/Manager).
626 - Experimental SQLite configuration backend which will provide the configuration
627 interface for strongSwan Manager in future releases.
629 - Further improvements to MOBIKE support.
635 - Since some third party IKEv2 implementations run into
636 problems with strongSwan announcing MOBIKE capability per
637 default, MOBIKE can be disabled on a per-connection-basis
638 using the mobike=no option. Whereas mobike=no disables the
639 sending of the MOBIKE_SUPPORTED notification and the floating
640 to UDP port 4500 with the IKE_AUTH request even if no NAT
641 situation has been detected, strongSwan will still support
642 MOBIKE acting as a responder.
644 - the default ipsec routing table plus its corresponding priority
645 used for inserting source routes has been changed from 100 to 220.
646 It can be configured using the --with-ipsec-routing-table and
647 --with-ipsec-routing-table-prio options.
649 - the --enable-integrity-test configure option tests the
650 integrity of the libstrongswan crypto code during the charon
653 - the --disable-xauth-vid configure option disables the sending
654 of the XAUTH vendor ID. This can be used as a workaround when
655 interoperating with some Windows VPN clients that get into
656 trouble upon reception of an XAUTH VID without eXtended
657 AUTHentication having been configured.
659 - ipsec stroke now supports the rereadsecrets, rereadaacerts,
660 rereadacerts, and listacerts options.
666 - If a DNS lookup failure occurs when resolving right=%<FQDN>
667 or right=<FQDN> combined with rightallowany=yes then the
668 connection is not updated by ipsec starter thus preventing
669 the disruption of an active IPsec connection. Only if the DNS
670 lookup successfully returns with a changed IP address the
671 corresponding connection definition is updated.
673 - Routes installed by the keying daemons are now in a separate
674 routing table with the ID 100 to avoid conflicts with the main
675 table. Route lookup for IKEv2 traffic is done in userspace to ignore
676 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
682 - The pluto IKEv1 daemon now exhibits the same behaviour as its
683 IKEv2 companion charon by inserting an explicit route via the
684 _updown script only if a sourceip exists. This is admissible
685 since routing through the IPsec tunnel is handled automatically
686 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
687 parameter is not required any more.
689 - The new IKEv1 parameter right|leftallowany parameters helps to handle
690 the case where both peers possess dynamic IP addresses that are
691 usually resolved using DynDNS or a similar service. The configuration
696 can be used by the initiator to start up a connection to a peer
697 by resolving peer.foo.bar into the currently allocated IP address.
698 Thanks to the rightallowany flag the connection behaves later on
703 so that the peer can rekey the connection as an initiator when his
704 IP address changes. An alternative notation is
708 which will implicitly set rightallowany=yes.
710 - ipsec starter now fails more gracefully in the presence of parsing
711 errors. Flawed ca and conn section are discarded and pluto is started
712 if non-fatal errors only were encountered. If right=%peer.foo.bar
713 cannot be resolved by DNS then right=%any will be used so that passive
714 connections as a responder are still possible.
716 - The new pkcs11initargs parameter that can be placed in the
717 setup config section of /etc/ipsec.conf allows the definition
718 of an argument string that is used with the PKCS#11 C_Initialize()
719 function. This non-standard feature is required by the NSS softoken
720 library. This patch was contributed by Robert Varga.
722 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
723 which caused a segmentation fault in the presence of unknown
724 or misspelt keywords in ipsec.conf. This bug fix was contributed
727 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
728 address configuration changes and updates IKE and IPsec SAs dynamically.
734 - IKEv2 peer configuration selection now can be based on a given
735 certification authority using the rightca= statement.
737 - IKEv2 authentication based on RSA signatures now can handle multiple
738 certificates issued for a given peer ID. This allows a smooth transition
739 in the case of a peer certificate renewal.
741 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
742 client and returning requested virtual IPs using rightsourceip=%config
743 on the server. If the server does not support configuration payloads, the
744 client enforces its leftsourceip parameter.
746 - The ./configure options --with-uid/--with-gid allow pluto and charon
747 to drop their privileges to a minimum and change to an other UID/GID. This
748 improves the systems security, as a possible intruder may only get the
749 CAP_NET_ADMIN capability.
751 - Further modularization of charon: Pluggable control interface and
752 configuration backend modules provide extensibility. The control interface
753 for stroke is included, and further interfaces using DBUS (NetworkManager)
754 or XML are on the way. A backend for storing configurations in the daemon
755 is provided and more advanced backends (using e.g. a database) are trivial
758 - Fixed a compilation failure in libfreeswan occuring with Linux kernel
765 - Support for an additional Diffie-Hellman exchange when creating/rekeying
766 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
767 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
768 is implemented properly for rekeying.
770 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
771 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
773 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
775 - Added support for EAP modules which do not establish an MSK.
777 - Removed the dependencies from the /usr/include/linux/ headers by
778 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
780 - crlNumber is now listed by ipsec listcrls
782 - The xauth_modules.verify_secret() function now passes the
789 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
790 cookies are enabled and protect against DoS attacks with faked source
791 addresses. Number of IKE_SAs in CONNECTING state is also limited per
792 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
793 compared to properly detect retransmissions and incoming retransmits are
794 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
796 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
797 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
798 enabled by cachecrls=yes.
800 - Added the configuration options --enable-nat-transport which enables
801 the potentially insecure NAT traversal for IPsec transport mode and
802 --disable-vendor-id which disables the sending of the strongSwan
805 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
806 a segmentation fault if a malformed payload was detected in the
807 IKE MR2 message and pluto tried to send an encrypted notification
810 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
811 with Windows 2003 Server which uses a wrong VID hash.
817 - Support of SHA2_384 hash function for protecting IKEv1
818 negotiations and support of SHA2 signatures in X.509 certificates.
820 - Fixed a serious bug in the computation of the SHA2-512 HMAC
821 function. Introduced automatic self-test of all IKEv1 hash
822 and hmac functions during pluto startup. Failure of a self-test
823 currently issues a warning only but does not exit pluto [yet].
825 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
827 - Full support of CA information sections. ipsec listcainfos
828 now shows all collected crlDistributionPoints and OCSP
831 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
832 This feature requires the HTTP fetching capabilities of the libcurl
833 library which must be enabled by setting the --enable-http configure
836 - Refactored core of the IKEv2 message processing code, allowing better
837 code reuse and separation.
839 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
840 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
841 by the requestor and installed in a resolv.conf file.
843 - The IKEv2 daemon charon installs a route for each IPsec policy to use
844 the correct source address even if an application does not explicitly
847 - Integrated the EAP framework into charon which loads pluggable EAP library
848 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
849 on the client side, while the "eap" parameter on the server side defines
850 the EAP method to use for client authentication.
851 A generic client side EAP-Identity module and an EAP-SIM authentication
852 module using a third party card reader implementation are included.
854 - Added client side support for cookies.
856 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
857 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
858 fixes to enhance interoperability with other implementations.
864 - strongSwan now interoperates with the NCP Secure Entry Client,
865 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
866 XAUTH and Mode Config.
868 - UNITY attributes are now recognized and UNITY_BANNER is set
875 - IKEv1: Support for extended authentication (XAUTH) in combination
876 with ISAKMP Main Mode RSA or PSK authentication. Both client and
877 server side were implemented. Handling of user credentials can
878 be done by a run-time loadable XAUTH module. By default user
879 credentials are stored in ipsec.secrets.
881 - IKEv2: Support for reauthentication when rekeying
883 - IKEv2: Support for transport mode
885 - fixed a lot of bugs related to byte order
887 - various other bugfixes
893 - IKEv1: Implementation of ModeConfig push mode via the new connection
894 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
896 - IKEv1: The command ipsec statusall now shows "DPD active" for all
897 ISAKMP SAs that are under active Dead Peer Detection control.
899 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
900 Instead of logger, special printf() functions are used to directly
901 print objects like hosts (%H) identifications (%D), certificates (%Q),
902 etc. The number of debugging levels have been reduced to:
904 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
906 The debugging levels can either be specified statically in ipsec.conf as
909 charondebug="lib 1, cfg 3, net 2"
911 or changed at runtime via stroke as
913 ipsec stroke loglevel cfg 2
919 - Implemented full support for IPv6-in-IPv6 tunnels.
921 - Added configuration options for dead peer detection in IKEv2. dpd_action
922 types "clear", "hold" and "restart" are supported. The dpd_timeout
923 value is not used, as the normal retransmission policy applies to
924 detect dead peers. The dpd_delay parameter enables sending of empty
925 informational message to detect dead peers in case of inactivity.
927 - Added support for preshared keys in IKEv2. PSK keys configured in
928 ipsec.secrets are loaded. The authby parameter specifies the authentication
929 method to authentificate ourself, the other peer may use PSK or RSA.
931 - Changed retransmission policy to respect the keyingtries parameter.
933 - Added private key decryption. PEM keys encrypted with AES-128/192/256
934 or 3DES are supported.
936 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
939 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
940 signed with such a hash algorithm.
942 - Added initial support for updown scripts. The actions up-host/client and
943 down-host/client are executed. The leftfirewall=yes parameter
944 uses the default updown script to insert dynamic firewall rules, a custom
945 updown script may be specified with the leftupdown parameter.
951 - Added support for the auto=route ipsec.conf parameter and the
952 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
953 CHILD_SAs dynamically on demand when traffic is detected by the
956 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
957 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
958 new keys are generated using perfect forward secrecy. An optional flag
959 which enforces reauthentication will be implemented later.
961 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
962 algorithm configuration statements.
968 - Full X.509 certificate trust chain verification has been implemented.
969 End entity certificates can be exchanged via CERT payloads. The current
970 default is leftsendcert=always, since CERTREQ payloads are not supported
971 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
973 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
974 would offer more possibilities for traffic selection, but the Linux kernel
975 currently does not support it. That's why we stick with these simple
976 ipsec.conf rules for now.
978 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
979 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
982 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
983 notify payloads to detect NAT routers between the peers. It switches
984 to port 4500, uses UDP encapsulated ESP packets, handles peer address
985 changes gracefully and sends keep alive message periodically.
987 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
988 rekeying, more shared code, cleaner design, proper retransmission
989 and a more extensible code base.
991 - The mixed PSK/RSA roadwarrior detection capability introduced by the
992 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
993 payloads by the responder right before any defined IKE Main Mode state had
994 been established. Although any form of bad proposal syntax was being correctly
995 detected by the payload parser, the subsequent error handler didn't check
996 the state pointer before logging current state information, causing an
997 immediate crash of the pluto keying daemon due to a NULL pointer.
1003 - Added algorithm selection to charon: New default algorithms for
1004 ike=aes128-sha-modp2048, as both daemons support it. The default
1005 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
1006 the ike/esp parameter the same way as pluto. As this syntax does
1007 not allow specification of a pseudo random function, the same
1008 algorithm as for integrity is used (currently sha/md5). Supported
1010 Encryption: aes128, aes192, aes256
1011 Integrity/PRF: md5, sha (using hmac)
1012 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
1014 Encryption: aes128, aes192, aes256, 3des, blowfish128,
1015 blowfish192, blowfish256
1016 Integrity: md5, sha1
1017 More IKE encryption algorithms will come after porting libcrypto into
1020 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
1021 perfect forward secrecy is used. The rekeying parameters rekey,
1022 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
1023 when using IKEv2. WARNING: charon currently is unable to handle
1024 simultaneous rekeying. To avoid such a situation, use a large
1025 rekeyfuzz, or even better, set rekey=no on one peer.
1027 - support for host2host, net2net, host2net (roadwarrior) tunnels
1028 using predefined RSA certificates (see uml scenarios for
1029 configuration examples).
1031 - new build environment featuring autotools. Features such
1032 as HTTP, LDAP and smartcard support may be enabled using
1033 the ./configure script. Changing install directories
1034 is possible, too. See ./configure --help for more details.
1036 - better integration of charon with ipsec starter, which allows
1037 (almost) transparent operation with both daemons. charon
1038 handles ipsec commands up, down, status, statusall, listall,
1039 listcerts and allows proper load, reload and delete of connections
1046 - initial support of the IKEv2 protocol. Connections in
1047 ipsec.conf designated by keyexchange=ikev2 are negotiated
1048 by the new IKEv2 charon keying daemon whereas those marked
1049 by keyexchange=ikev1 or the default keyexchange=ike are
1050 handled thy the IKEv1 pluto keying daemon. Currently only
1051 a limited subset of functions are available with IKEv2
1052 (Default AES encryption, authentication based on locally
1053 imported X.509 certificates, unencrypted private RSA keys
1054 in PKCS#1 file format, limited functionality of the ipsec
1061 - the dynamic iptables rules from the _updown_x509 template
1062 for KLIPS and the _updown_policy template for NETKEY have
1063 been merged into the default _updown script. The existing
1064 left|rightfirewall keyword causes the automatic insertion
1065 and deletion of ACCEPT rules for tunneled traffic upon
1066 the successful setup and teardown of an IPsec SA, respectively.
1067 left|rightfirwall can be used with KLIPS under any Linux 2.4
1068 kernel or with NETKEY under a Linux kernel version >= 2.6.16
1069 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
1070 kernel version < 2.6.16 which does not support IPsec policy
1071 matching yet, please continue to use a copy of the _updown_espmark
1072 template loaded via the left|rightupdown keyword.
1074 - a new left|righthostaccess keyword has been introduced which
1075 can be used in conjunction with left|rightfirewall and the
1076 default _updown script. By default leftfirewall=yes inserts
1077 a bi-directional iptables FORWARD rule for a local client network
1078 with a netmask different from 255.255.255.255 (single host).
1079 This does not allow to access the VPN gateway host via its
1080 internal network interface which is part of the client subnet
1081 because an iptables INPUT and OUTPUT rule would be required.
1082 lefthostaccess=yes will cause this additional ACCEPT rules to
1085 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
1086 payload is preparsed in order to find out whether the roadwarrior
1087 requests PSK or RSA so that a matching connection candidate can
1094 - the new _updown_policy template allows ipsec policy based
1095 iptables firewall rules. Required are iptables version
1096 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
1097 the _updown_espmark template, so that no INPUT mangle rules
1098 are required any more.
1100 - added support of DPD restart mode
1102 - ipsec starter now allows the use of wildcards in include
1103 statements as e.g. in "include /etc/my_ipsec/*.conf".
1104 Patch courtesy of Matthias Haas.
1106 - the Netscape OID 'employeeNumber' is now recognized and can be
1107 used as a Relative Distinguished Name in certificates.
1113 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
1114 command and not of ipsec setup any more.
1116 - ipsec starter now supports AH authentication in conjunction with
1117 ESP encryption. AH authentication is configured in ipsec.conf
1118 via the auth=ah parameter.
1120 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
1121 ipsec whack --scencrypt|scdecrypt <args>.
1123 - get_sa_info() now determines for the native netkey IPsec stack
1124 the exact time of the last use of an active eroute. This information
1125 is used by the Dead Peer Detection algorithm and is also displayed by
1126 the ipsec status command.
1132 - running under the native Linux 2.6 IPsec stack, the function
1133 get_sa_info() is called by ipsec auto --status to display the current
1134 number of transmitted bytes per IPsec SA.
1136 - get_sa_info() is also used by the Dead Peer Detection process to detect
1137 recent ESP activity. If ESP traffic was received from the peer within
1138 the last dpd_delay interval then no R_Y_THERE notification must be sent.
1140 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
1141 in ID_DER_ASN1_DN identities. The following notations are possible:
1143 rightid="unstructuredName=John Doe"
1144 rightid="UN=John Doe"
1146 - fixed a long-standing bug which caused PSK-based roadwarrior connections
1147 to segfault in the function id.c:same_id() called by keys.c:get_secret()
1148 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
1155 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
1157 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
1159 - in order to guarantee backwards-compatibility with the script-based
1160 auto function (e.g. auto --replace), the ipsec starter scripts stores
1161 the defaultroute information in the temporary file /var/run/ipsec.info.
1163 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
1164 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
1167 - the ipsec starter now also recognizes the parameters authby=never and
1168 type=passthrough|pass|drop|reject.
1174 - ipsec starter now supports the also parameter which allows
1175 a modular structure of the connection definitions. Thus
1176 "ipsec start" is now ready to replace "ipsec setup".
1182 - Mathieu Lafon's popular ipsec starter tool has been added to the
1183 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
1184 for his integration work. ipsec starter is a C program which is going
1185 to replace the various shell and awk starter scripts (setup, _plutoload,
1186 _plutostart, _realsetup, _startklips, _confread, and auto). Since
1187 ipsec.conf is now parsed only once, the starting of multiple tunnels is
1188 accelerated tremedously.
1190 - Added support of %defaultroute to the ipsec starter. If the IP address
1191 changes, a HUP signal to the ipsec starter will automatically
1192 reload pluto's connections.
1194 - moved most compile time configurations from pluto/Makefile to
1195 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
1196 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
1198 - removed the ipsec verify and ipsec newhostkey commands
1200 - fixed some 64-bit issues in formatted print statements
1202 - The scepclient functionality implementing the Simple Certificate
1203 Enrollment Protocol (SCEP) is nearly complete but hasn't been
1210 - CA certicates are now automatically loaded from a smartcard
1211 or USB crypto token and appear in the ipsec auto --listcacerts
1218 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
1219 library that does not support the C_Encrypt() Cryptoki
1220 function (e.g. OpenSC), the RSA encryption is done in
1221 software using the public key fetched from the smartcard.
1223 - The scepclient function now allows to define the
1224 validity of a self-signed certificate using the --days,
1225 --startdate, and --enddate options. The default validity
1226 has been changed from one year to five years.
1232 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
1233 interface to other applications for RSA encryption and decryption
1234 via the whack interface. Notation:
1236 ipsec whack --scencrypt <data>
1237 [--inbase 16|hex|64|base64|256|text|ascii]
1238 [--outbase 16|hex|64|base64|256|text|ascii]
1241 ipsec whack --scdecrypt <data>
1242 [--inbase 16|hex|64|base64|256|text|ascii]
1243 [--outbase 16|hex|64|base64|256|text|ascii]
1246 The default setting for inbase and outbase is hex.
1248 The new proxy interface can be used for securing symmetric
1249 encryption keys required by the cryptoloop or dm-crypt
1250 disk encryption schemes, especially in the case when
1251 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
1254 - if the file /etc/ipsec.secrets is lacking during the startup of
1255 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
1256 containing a 2048 bit RSA private key and a matching self-signed
1257 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
1258 is automatically generated by calling the function
1260 ipsec scepclient --out pkcs1 --out cert-self
1262 scepclient was written by Jan Hutter and Martin Willi, students
1263 at the University of Applied Sciences in Rapperswil, Switzerland.
1269 - the current extension of the PKCS#7 framework introduced
1270 a parsing error in PKCS#7 wrapped X.509 certificates that are
1271 e.g. transmitted by Windows XP when multi-level CAs are used.
1272 the parsing syntax has been fixed.
1274 - added a patch by Gerald Richter which tolerates multiple occurrences
1275 of the ipsec0 interface when using KLIPS.
1281 - with gawk-3.1.4 the word "default2 has become a protected
1282 keyword for use in switch statements and cannot be used any
1283 more in the strongSwan scripts. This problem has been
1284 solved by renaming "default" to "defaults" and "setdefault"
1285 in the scripts _confread and auto, respectively.
1287 - introduced the parameter leftsendcert with the values
1289 always|yes (the default, always send a cert)
1290 ifasked (send the cert only upon a cert request)
1291 never|no (never send a cert, used for raw RSA keys and
1294 - fixed the initialization of the ESP key length to a default of
1295 128 bits in the case that the peer does not send a key length
1296 attribute for AES encryption.
1298 - applied Herbert Xu's uniqueIDs patch
1300 - applied Herbert Xu's CLOEXEC patches
1306 - CRLs can now be cached also in the case when the issuer's
1307 certificate does not contain a subjectKeyIdentifier field.
1308 In that case the subjectKeyIdentifier is computed by pluto as the
1309 160 bit SHA-1 hash of the issuer's public key in compliance
1310 with section 4.2.1.2 of RFC 3280.
1312 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
1313 not only multiple Quick Modes of a given connection but also
1314 multiple connections between two security gateways.
1320 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
1321 installed either by setting auto=route in ipsec.conf or by
1322 a connection put into hold, generates an XFRM_AQUIRE event
1323 for each packet that wants to use the not-yet exisiting
1324 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
1325 the Quick Mode queue, causing multiple IPsec SA to be
1326 established in rapid succession. Starting with strongswan-2.5.1
1327 only a single IPsec SA is established per host-pair connection.
1329 - Right after loading the PKCS#11 module, all smartcard slots are
1330 searched for certificates. The result can be viewed using
1333 ipsec auto --listcards
1335 The certificate objects found in the slots are numbered
1336 starting with #1, #2, etc. This position number can be used to address
1337 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
1338 in ipsec.conf and ipsec.secrets, respectively:
1340 %smartcard (selects object #1)
1341 %smartcard#1 (selects object #1)
1342 %smartcard#3 (selects object #3)
1344 As an alternative the existing retrieval scheme can be used:
1346 %smartcard:45 (selects object with id=45)
1347 %smartcard0 (selects first object in slot 0)
1348 %smartcard4:45 (selects object in slot 4 with id=45)
1350 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
1351 private key flags either C_Sign() or C_Decrypt() is used
1352 to generate a signature.
1354 - The output buffer length parameter siglen in C_Sign()
1355 is now initialized to the actual size of the output
1356 buffer prior to the function call. This fixes the
1357 CKR_BUFFER_TOO_SMALL error that could occur when using
1358 the OpenSC PKCS#11 module.
1360 - Changed the initialization of the PKCS#11 CK_MECHANISM in
1361 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
1363 - Refactored the RSA public/private key code and transferred it
1364 from keys.c to the new pkcs1.c file as a preparatory step
1365 towards the release of the SCEP client.
1371 - The loading of a PKCS#11 smartcard library module during
1372 runtime does not require OpenSC library functions any more
1373 because the corresponding code has been integrated into
1374 smartcard.c. Also the RSAREF pkcs11 header files have been
1375 included in a newly created pluto/rsaref directory so that
1376 no external include path has to be defined any longer.
1378 - A long-awaited feature has been implemented at last:
1379 The local caching of CRLs fetched via HTTP or LDAP, activated
1380 by the parameter cachecrls=yes in the config setup section
1381 of ipsec.conf. The dynamically fetched CRLs are stored under
1382 a unique file name containing the issuer's subjectKeyID
1383 in /etc/ipsec.d/crls.
1385 - Applied a one-line patch courtesy of Michael Richardson
1386 from the Openswan project which fixes the kernel-oops
1387 in KLIPS when an snmp daemon is running on the same box.
1393 - Eliminated null length CRL distribution point strings.
1395 - Fixed a trust path evaluation bug introduced with 2.4.3
1401 - Improved the joint OCSP / CRL revocation policy.
1402 OCSP responses have precedence over CRL entries.
1404 - Introduced support of CRLv2 reason codes.
1406 - Fixed a bug with key-pad equipped readers which caused
1407 pluto to prompt for the pin via the console when the first
1408 occasion to enter the pin via the key-pad was missed.
1410 - When pluto is built with LDAP_V3 enabled, the library
1411 liblber required by newer versions of openldap is now
1418 - Added the _updown_espmark template which requires all
1419 incoming ESP traffic to be marked with a default mark
1422 - Introduced the pkcs11keepstate parameter in the config setup
1423 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
1424 session and login states are kept as long as possible during
1425 the lifetime of pluto. This means that a PIN entry via a key
1426 pad has to be done only once.
1428 - Introduced the pkcs11module parameter in the config setup
1429 section of ipsec.conf which specifies the PKCS#11 module
1430 to be used with smart cards. Example:
1432 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
1434 - Added support of smartcard readers equipped with a PIN pad.
1436 - Added patch by Jay Pfeifer which detects when netkey
1437 modules have been statically built into the Linux 2.6 kernel.
1439 - Added two patches by Herbert Xu. The first uses ip xfrm
1440 instead of setkey to flush the IPsec policy database. The
1441 second sets the optional flag in inbound IPComp SAs only.
1443 - Applied Ulrich Weber's patch which fixes an interoperability
1444 problem between native IPsec and KLIPS systems caused by
1445 setting the replay window to 32 instead of 0 for ipcomp.
1451 - Fixed a bug which caused an unwanted Mode Config request
1452 to be initiated in the case where "right" was used to denote
1453 the local side in ipsec.conf and "left" the remote side,
1454 contrary to the recommendation that "right" be remote and
1461 - updated Vendor ID to strongSwan-2.4.0
1463 - updated copyright statement to include David Buechi and
1470 - strongSwan now communicates with attached smartcards and
1471 USB crypto tokens via the standardized PKCS #11 interface.
1472 By default the OpenSC library from www.opensc.org is used
1473 but any other PKCS#11 library could be dynamically linked.
1474 strongSwan's PKCS#11 API was implemented by David Buechi
1475 and Michael Meier, both graduates of the Zurich University
1476 of Applied Sciences in Winterthur, Switzerland.
1478 - When a %trap eroute is triggered by an outgoing IP packet
1479 then the native IPsec stack of the Linux 2.6 kernel [often/
1480 always?] returns an XFRM_ACQUIRE message with an undefined
1481 protocol family field and the connection setup fails.
1482 As a workaround IPv4 (AF_INET) is now assumed.
1484 - the results of the UML test scenarios are now enhanced
1485 with block diagrams of the virtual network topology used
1486 in a particular test.
1492 - fixed IV used to decrypt informational messages.
1493 This bug was introduced with Mode Config functionality.
1495 - fixed NCP Vendor ID.
1497 - undid one of Ulrich Weber's maximum udp size patches
1498 because it caused a segmentation fault with NAT-ed
1501 - added UML scenarios wildcards and attr-cert which
1502 demonstrate the implementation of IPsec policies based
1503 on wildcard parameters contained in Distinguished Names and
1504 on X.509 attribute certificates, respectively.
1510 - Added basic Mode Config functionality
1512 - Added Mathieu Lafon's patch which upgrades the status of
1513 the NAT-Traversal implementation to RFC 3947.
1515 - The _startklips script now also loads the xfrm4_tunnel
1518 - Added Ulrich Weber's netlink replay window size and
1519 maximum udp size patches.
1521 - UML testing now uses the Linux 2.6.10 UML kernel by default.
1527 - Eric Marchionni and Patrik Rayo, both recent graduates from
1528 the Zuercher Hochschule Winterthur in Switzerland, created a
1529 User-Mode-Linux test setup for strongSwan. For more details
1530 please read the INSTALL and README documents in the testing
1533 - Full support of group attributes based on X.509 attribute
1534 certificates. Attribute certificates can be generated
1535 using the openac facility. For more details see
1539 The group attributes can be used in connection definitions
1540 in order to give IPsec access to specific user groups.
1541 This is done with the new parameter left|rightgroups as in
1543 rightgroups="Research, Sales"
1545 giving access to users possessing the group attributes
1546 Research or Sales, only.
1548 - In Quick Mode clients with subnet mask /32 are now
1549 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
1550 fix rekeying problems with the SafeNet/SoftRemote and NCP
1551 Secure Entry Clients.
1553 - Changed the defaults of the ikelifetime and keylife parameters
1554 to 3h and 1h, respectively. The maximum allowable values are
1555 now both set to 24 h.
1557 - Suppressed notification wars between two IPsec peers that
1558 could e.g. be triggered by incorrect ISAKMP encryption.
1560 - Public RSA keys can now have identical IDs if either the
1561 issuing CA or the serial number is different. The serial
1562 number of a certificate is now shown by the command
1564 ipsec auto --listpubkeys
1570 - Added Tuomo Soini's sourceip feature which allows a strongSwan
1571 roadwarrior to use a fixed Virtual IP (see README section 2.6)
1572 and reduces the well-known four tunnel case on VPN gateways to
1573 a single tunnel definition (see README section 2.4).
1575 - Fixed a bug occuring with NAT-Traversal enabled when the responder
1576 suddenly turns initiator and the initiator cannot find a matching
1577 connection because of the floated IKE port 4500.
1579 - Removed misleading ipsec verify command from barf.
1581 - Running under the native IP stack, ipsec --version now shows
1582 the Linux kernel version (courtesy to the Openswan project).
1588 - Introduced the ipsec auto --listalgs monitoring command which lists
1589 all currently registered IKE and ESP algorithms.
1591 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
1592 is set and the first proposed transform does not match.
1594 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
1595 occuring when a smartcard is present.
1597 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
1599 - Fixed the printing of the notification names (null)
1601 - Applied another of Herbert Xu's Netlink patches.
1607 - Support of Dead Peer Detection. The connection parameter
1609 dpdaction=clear|hold
1611 activates DPD for the given connection.
1613 - The default Opportunistic Encryption (OE) policy groups are not
1614 automatically included anymore. Those wishing to activate OE can include
1615 the policy group with the following statement in ipsec.conf:
1617 include /etc/ipsec.d/examples/oe.conf
1619 The default for [right|left]rsasigkey is now set to %cert.
1621 - strongSwan now has a Vendor ID of its own which can be activated
1622 using the compile option VENDORID
1624 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
1626 - Applied Herbert Xu's patch fixing an ESPINUDP problem
1628 - Applied Herbert Xu's patch setting source/destination port numbers.
1630 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
1631 lost during the migration from SuperFreeS/WAN.
1633 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
1635 - Fixed the unsharing of alg parameters when instantiating group
1642 - Thomas Walpuski made me aware of a potential DoS attack via
1643 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
1644 certificates in Pluto's authority certificate store. This vulnerability
1645 was fixed by establishing trust in CA candidate certificates up to a
1646 trusted root CA prior to insertion into Pluto's chained list.
1648 - replaced the --assign option by the -v option in the auto awk script
1649 in order to make it run with mawk under debian/woody.
1655 - Split of the status information between ipsec auto --status (concise)
1656 and ipsec auto --statusall (verbose). Both commands can be used with
1657 an optional connection selector:
1659 ipsec auto --status[all] <connection_name>
1661 - Added the description of X.509 related features to the ipsec_auto(8)
1664 - Hardened the ASN.1 parser in debug mode, especially the printing
1665 of malformed distinguished names.
1667 - The size of an RSA public key received in a certificate is now restricted to
1669 512 bits <= modulus length <= 8192 bits.
1671 - Fixed the debug mode enumeration.
1677 - Fixed another PKCS#7 vulnerability which could lead to an
1678 endless loop while following the X.509 trust chain.
1684 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
1685 that accepted end certificates having identical issuer and subject
1686 distinguished names in a multi-tier X.509 trust chain.
1692 - Removed all remaining references to ipsec_netlink.h in KLIPS.
1698 - The new "ca" section allows to define the following parameters:
1701 cacert=koolCA.pem # cacert of kool CA
1702 ocspuri=http://ocsp.kool.net:8001 # ocsp server
1703 ldapserver=ldap.kool.net # default ldap server
1704 crluri=http://www.kool.net/kool.crl # crl distribution point
1705 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
1706 auto=add # add, ignore
1708 The ca definitions can be monitored via the command
1710 ipsec auto --listcainfos
1712 - Fixed cosmetic corruption of /proc filesystem by integrating
1713 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
1719 - Added support for the 818043 NAT-Traversal update of Microsoft's
1720 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
1722 - A symbolic link to libcrypto is now added in the kernel sources
1723 during kernel compilation
1725 - Fixed a couple of 64 bit issues (mostly casts to int).
1726 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
1728 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
1729 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
1730 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
1736 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
1737 certificate extension which contains no generalName item) can cause
1738 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
1739 been hardened to make it more robust against malformed ASN.1 objects.
1741 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
1742 Linux 2.6 IPsec stack.
1748 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12
projects / people / ms / strongswan.git / blob