4 - The existing IKEv2 socket implementations have been migrated to the
5 socket-default and the socket-raw plugins. The new socket-dynamic plugin
6 binds sockets dynamically to ports configured via the left-/rightikeport
7 ipsec.conf connection parameters.
9 - The android charon plugin stores received DNS server information as "net.dns"
10 system properties, as used by the Android platform.
15 - The IKEv2 daemon supports RFC 3779 IP address block constraints
16 carried as a critical X.509v3 extension in the peer certificate.
18 - The ipsec pool --add|del dns|nbns command manages DNS and NBNS name
19 server entries that are sent via the IKEv1 Mode Config or IKEv2
20 Configuration Payload to remote clients.
22 - The Camellia cipher can be used as an IKEv1 encryption algorithm.
24 - The IKEv1 and IKEV2 daemons now check certificate path length constraints.
26 - The new ipsec.conf conn option "inactivity" closes a CHILD_SA if no traffic
27 was sent or received within the given interval. To close the complete IKE_SA
28 if its only CHILD_SA was inactive, set the global strongswan.conf option
29 "charon.inactivity_close_ike" to yes.
31 - More detailed IKEv2 EAP payload information in debug output
33 - IKEv2 EAP-SIM and EAP-AKA share joint libsimaka library
35 - Added required userland changes for proper SHA256 and SHA384/512 in ESP that
36 will be introduced with Linux 2.6.33. The "sha256"/"sha2_256" keyword now
37 configures the kernel with 128 bit truncation, not the non-standard 96
38 bit truncation used by previous releases. To use the old 96 bit truncation
39 scheme, the new "sha256_96" proposal keyword has been introduced.
41 - Fixed IPComp in tunnel mode, stripping out the duplicated outer header. This
42 change makes IPcomp tunnel mode connections incompatible with previous
43 releases; disable compression on such tunnels.
45 - Fixed BEET mode connections on recent kernels by installing SAs with
46 appropriate traffic selectors, based on a patch by Michael Rossberg.
48 - Using extensions (such as BEET mode) and crypto algorithms (such as twofish,
49 serpent, sha256_96) allocated in the private use space now require that we
50 know its meaning, i.e. we are talking to strongSwan. Use the new
51 "charon.send_vendor_id" option in strongswan.conf to let the remote peer know
54 - Experimental support for draft-eronen-ipsec-ikev2-eap-auth, where the
55 responder omits public key authentication in favor of a mutual authentication
56 method. To enable EAP-only authentication, set rightauth=eap on the responder
57 to rely only on the MSK constructed AUTH payload. This not-yet standardized
58 extension requires the strongSwan vendor ID introduced above.
60 - The IKEv1 daemon ignores the Juniper SRX notification type 40001, thus
61 allowing interoperability.
67 - The IKEv1 pluto daemon can now use SQL-based address pools to deal out
68 virtual IP addresses as a Mode Config server. The pool capability has been
69 migrated from charon's sql plugin to a new attr-sql plugin which is loaded
70 by libstrongswan and which can be used by both daemons either with a SQLite
71 or MySQL database and the corresponding plugin.
73 - Plugin names have been streamlined: EAP plugins now have a dash after eap
74 (e.g. eap-sim), as it is used with the --enable-eap-sim ./configure option.
75 Plugin configuration sections in strongswan.conf now use the same name as the
76 plugin itself (i.e. with a dash). Make sure to update "load" directives and
77 the affected plugin sections in existing strongswan.conf files.
79 - The private/public key parsing and encoding has been split up into
80 separate pkcs1, pgp, pem and dnskey plugins. The public key implementation
81 plugins gmp, gcrypt and openssl can all make use of them.
83 - The EAP-AKA plugin can use different backends for USIM/quintuplet
84 calculations, very similar to the EAP-SIM plugin. The existing 3GPP2 software
85 implementation has been migrated to a separate plugin.
87 - The IKEv2 daemon charon gained basic PGP support. It can use locally installed
88 peer certificates and can issue signatures based on RSA private keys.
90 - The new 'ipsec pki' tool provides a set of commands to maintain a public
91 key infrastructure. It currently supports operations to create RSA and ECDSA
92 private/public keys, calculate fingerprints and issue or verify certificates.
94 - Charon uses a monotonic time source for statistics and job queueing, behaving
95 correctly if the system time changes (e.g. when using NTP).
97 - In addition to time based rekeying, charon supports IPsec SA lifetimes based
98 on processed volume or number of packets. They new ipsec.conf paramaters
99 'lifetime' (an alias to 'keylife'), 'lifebytes' and 'lifepackets' handle
100 SA timeouts, while the parameters 'margintime' (an alias to rekeymargin),
101 'marginbytes' and 'marginpackets' trigger the rekeying before a SA expires.
102 The existing parameter 'rekeyfuzz' affects all margins.
104 - If no CA/Gateway certificate is specified in the NetworkManager plugin,
105 charon uses a set of trusted root certificates preinstalled by distributions.
106 The directory containing CA certificates can be specified using the
107 --with-nm-ca-dir=path configure option.
109 - Fixed the encoding of the Email relative distinguished name in left|rightid
112 - Fixed the broken parsing of PKCS#7 wrapped certificates by the pluto daemon.
114 - Fixed smartcard-based authentication in the pluto daemon which was broken by
115 the ECDSA support introduced with the 4.3.2 release.
117 - A patch contributed by Heiko Hund fixes mixed IPv6 in IPv4 and vice versa
118 tunnels established with the IKEv1 pluto daemon.
120 - The pluto daemon now uses the libstrongswan x509 plugin for certificates and
121 CRls and the struct id type was replaced by identification_t used by charon
122 and the libstrongswan library.
128 - IKEv2 charon daemon ported to FreeBSD and Mac OS X. Installation details can
129 be found on wiki.strongswan.org.
131 - ipsec statusall shows the number of bytes transmitted and received over
132 ESP connections configured by the IKEv2 charon daemon.
134 - The IKEv2 charon daemon supports include files in ipsec.secrets.
140 - The configuration option --enable-integrity-test plus the strongswan.conf
141 option libstrongswan.integrity_test = yes activate integrity tests
142 of the IKE daemons charon and pluto, libstrongswan and all loaded
143 plugins. Thus dynamic library misconfigurations and non-malicious file
144 manipulations can be reliably detected.
146 - The new default setting libstrongswan.ecp_x_coordinate_only=yes allows
147 IKEv1 interoperability with MS Windows using the ECP DH groups 19 and 20.
149 - The IKEv1 pluto daemon now supports the AES-CCM and AES-GCM ESP
150 authenticated encryption algorithms.
152 - The IKEv1 pluto daemon now supports V4 OpenPGP keys.
154 - The RDN parser vulnerability discovered by Orange Labs research team
155 was not completely fixed in version 4.3.2. Some more modifications
156 had to be applied to the asn1_length() function to make it robust.
162 - The new gcrypt plugin provides symmetric cipher, hasher, RNG, Diffie-Hellman
163 and RSA crypto primitives using the LGPL licensed GNU gcrypt library.
165 - libstrongswan features an integrated crypto selftest framework for registered
166 algorithms. The test-vector plugin provides a first set of test vectors and
167 allows pluto and charon to rely on tested crypto algorithms.
169 - pluto can now use all libstrongswan plugins with the exception of x509 and xcbc.
170 Thanks to the openssl plugin, the ECP Diffie-Hellman groups 19, 20, 21, 25, and
171 26 as well as ECDSA-256, ECDSA-384, and ECDSA-521 authentication can be used
174 - Applying their fuzzing tool, the Orange Labs vulnerability research team found
175 another two DoS vulnerabilities, one in the rather old ASN.1 parser of Relative
176 Distinguished Names (RDNs) and a second one in the conversion of ASN.1 UTCTIME
177 and GENERALIZEDTIME strings to a time_t value.
183 - The nm plugin now passes DNS/NBNS server information to NetworkManager,
184 allowing a gateway administrator to set DNS/NBNS configuration on clients
187 - The nm plugin also accepts CA certificates for gateway authentication. If
188 a CA certificate is configured, strongSwan uses the entered gateway address
189 as its idenitity, requiring the gateways certificate to contain the same as
190 subjectAltName. This allows a gateway administrator to deploy the same
191 certificates to Windows 7 and NetworkManager clients.
193 - The command ipsec purgeike deletes IKEv2 SAs that don't have a CHILD SA.
194 The command ipsec down <conn>{n} deletes CHILD SA instance n of connection
195 <conn> whereas ipsec down <conn>{*} deletes all CHILD SA instances.
196 The command ipsec down <conn>[n] deletes IKE SA instance n of connection
197 <conn> plus dependent CHILD SAs whereas ipsec down <conn>[*] deletes all
198 IKE SA instances of connection <conn>.
200 - Fixed a regression introduced in 4.3.0 where EAP authentication calculated
201 the AUTH payload incorrectly. Further, the EAP-MSCHAPv2 MSK key derivation
202 has been updated to be compatible with the Windows 7 Release Candidate.
204 - Refactored installation of triggering policies. Routed policies are handled
205 outside of IKE_SAs to keep them installed in any case. A tunnel gets
206 established only once, even if initiation is delayed due network outages.
208 - Improved the handling of multiple acquire signals triggered by the kernel.
210 - Fixed two DoS vulnerabilities in the charon daemon that were discovered by
211 fuzzing techniques: 1) Sending a malformed IKE_SA_INIT request leaved an
212 incomplete state which caused a null pointer dereference if a subsequent
213 CREATE_CHILD_SA request was sent. 2) Sending an IKE_AUTH request with either
214 a missing TSi or TSr payload caused a null pointer derefence because the
215 checks for TSi and TSr were interchanged. The IKEv2 fuzzer used was
216 developped by the Orange Labs vulnerability research team. The tool was
217 initially written by Gabriel Campana and is now maintained by Laurent Butti.
219 - Added support for AES counter mode in ESP in IKEv2 using the proposal
220 keywords aes128ctr, aes192ctr and aes256ctr.
222 - Further progress in refactoring pluto: Use of the curl and ldap plugins
223 for fetching crls and OCSP. Use of the random plugin to get keying material
224 from /dev/random or /dev/urandom. Use of the openssl plugin as an alternative
225 to the aes, des, sha1, sha2, and md5 plugins. The blowfish, twofish, and
226 serpent encryption plugins are now optional and are not enabled by default.
232 - Support for the IKEv2 Multiple Authentication Exchanges extension (RFC4739).
233 Initiators and responders can use several authentication rounds (e.g. RSA
234 followed by EAP) to authenticate. The new ipsec.conf leftauth/rightauth and
235 leftauth2/rightauth2 parameters define own authentication rounds or setup
236 constraints for the remote peer. See the ipsec.conf man page for more detials.
238 - If glibc printf hooks (register_printf_function) are not available,
239 strongSwan can use the vstr string library to run on non-glibc systems.
241 - The IKEv2 charon daemon can now configure the ESP CAMELLIA-CBC cipher
242 (esp=camellia128|192|256).
244 - Refactored the pluto and scepclient code to use basic functions (memory
245 allocation, leak detective, chunk handling, printf_hooks, strongswan.conf
246 attributes, ASN.1 parser, etc.) from the libstrongswan library.
248 - Up to two DNS and WINS servers to be sent via IKEv1 ModeConfig can be
249 configured in the pluto section of strongswan.conf.
255 - The new server-side EAP RADIUS plugin (--enable-eap-radius)
256 relays EAP messages to and from a RADIUS server. Succesfully
257 tested with with a freeradius server using EAP-MD5 and EAP-SIM.
259 - A vulnerability in the Dead Peer Detection (RFC 3706) code was found by
260 Gerd v. Egidy <gerd.von.egidy@intra2net.com> of Intra2net AG affecting
261 all Openswan and strongSwan releases. A malicious (or expired ISAKMP)
262 R_U_THERE or R_U_THERE_ACK Dead Peer Detection packet can cause the
263 pluto IKE daemon to crash and restart. No authentication or encryption
264 is required to trigger this bug. One spoofed UDP packet can cause the
265 pluto IKE daemon to restart and be unresponsive for a few seconds while
266 restarting. This DPD null state vulnerability has been officially
267 registered as CVE-2009-0790 and is fixed by this release.
269 - ASN.1 to time_t conversion caused a time wrap-around for
270 dates after Jan 18 03:14:07 UTC 2038 on 32-bit platforms.
271 As a workaround such dates are set to the maximum representable
272 time, i.e. Jan 19 03:14:07 UTC 2038.
274 - Distinguished Names containing wildcards (*) are not sent in the
281 - Fixed a use-after-free bug in the DPD timeout section of the
282 IKEv1 pluto daemon which sporadically caused a segfault.
284 - Fixed a crash in the IKEv2 charon daemon occuring with
285 mixed RAM-based and SQL-based virtual IP address pools.
287 - Fixed ASN.1 parsing of algorithmIdentifier objects where the
288 parameters field is optional.
290 - Ported nm plugin to NetworkManager 7.1.
296 - Support of the EAP-MSCHAPv2 protocol enabled by the option
297 --enable-eap-mschapv2. Requires the MD4 hash algorithm enabled
298 either by --enable-md4 or --enable-openssl.
300 - Assignment of up to two DNS and up to two WINS servers to peers via
301 the IKEv2 Configuration Payload (CP). The IPv4 or IPv6 nameserver
302 addresses are defined in strongswan.conf.
304 - The strongSwan applet for the Gnome NetworkManager is now built and
305 distributed as a separate tarball under the name NetworkManager-strongswan.
311 - Fixed ESP NULL encryption broken by the refactoring of keymat.c.
312 Also introduced proper initialization and disposal of keying material.
314 - Fixed the missing listing of connection definitions in ipsec statusall
315 broken by an unfortunate local variable overload.
321 - Several performance improvements to handle thousands of tunnels with almost
322 linear upscaling. All relevant data structures have been replaced by faster
323 counterparts with better lookup times.
325 - Better parallelization to run charon on multiple cores. Due to improved
326 ressource locking and other optimizations the daemon can take full
327 advantage of 16 or even more cores.
329 - The load-tester plugin can use a NULL Diffie-Hellman group and simulate
330 unique identities and certificates by signing peer certificates using a CA
333 - The redesigned stroke in-memory IP pool handles leases. The "ipsec leases"
334 command queries assigned leases.
336 - Added support for smartcards in charon by using the ENGINE API provided by
337 OpenSSL, based on patches by Michael Roßberg.
339 - The Padlock plugin supports the hardware RNG found on VIA CPUs to provide a
340 reliable source of randomness.
345 - Flexible configuration of logging subsystem allowing to log to multiple
346 syslog facilities or to files using fine-grained log levels for each target.
348 - Load testing plugin to do stress testing of the IKEv2 daemon against self
349 or another host. Found and fixed issues during tests in the multi-threaded
350 use of the OpenSSL plugin.
352 - Added profiling code to synchronization primitives to find bottlenecks if
353 running on multiple cores. Found and fixed an issue where parts of the
354 Diffie-Hellman calculation acquired an exclusive lock. This greatly improves
355 parallelization to multiple cores.
357 - updown script invocation has been separated into a plugin of its own to
358 further slim down the daemon core.
360 - Separated IKE_SA/CHILD_SA key derivation process into a closed system,
361 allowing future implementations to use a secured environment in e.g. kernel
364 - The kernel interface of charon has been modularized. XFRM NETLINK (default)
365 and PFKEY (--enable-kernel-pfkey) interface plugins for the native IPsec
366 stack of the Linux 2.6 kernel as well as a PFKEY interface for the KLIPS
367 IPsec stack (--enable-kernel-klips) are provided.
369 - Basic Mobile IPv6 support has been introduced, securing Binding Update
370 messages as well as tunneled traffic between Mobile Node and Home Agent.
371 The installpolicy=no option allows peaceful cooperation with a dominant
372 mip6d daemon and the new type=transport_proxy implements the special MIPv6
373 IPsec transport proxy mode where the IKEv2 daemon uses the Care-of-Address
374 but the IPsec SA is set up for the Home Adress.
376 - Implemented migration of Mobile IPv6 connections using the KMADDRESS
377 field contained in XFRM_MSG_MIGRATE messages sent by the mip6d daemon
378 via the Linux 2.6.28 (or appropriately patched) kernel.
384 - IKEv2 charon daemon supports authentication based on raw public keys
385 stored in the SQL database backend. The ipsec listpubkeys command
386 lists the available raw public keys via the stroke interface.
388 - Several MOBIKE improvements: Detect changes in NAT mappings in DPD exchanges,
389 handle events if kernel detects NAT mapping changes in UDP-encapsulated
390 ESP packets (requires kernel patch), reuse old addesses in MOBIKE updates as
391 long as possible and other fixes.
393 - Fixed a bug in addr_in_subnet() which caused insertion of wrong source
394 routes for destination subnets having netwmasks not being a multiple of 8 bits.
395 Thanks go to Wolfgang Steudel, TU Ilmenau for reporting this bug.
401 - Fixed a Denial-of-Service vulnerability where an IKE_SA_INIT message with
402 a KE payload containing zeroes only can cause a crash of the IKEv2 charon
403 daemon due to a NULL pointer returned by the mpz_export() function of the
404 GNU Multiprecision Library (GMP). Thanks go to Mu Dynamics Research Labs
405 for making us aware of this problem.
407 - The new agent plugin provides a private key implementation on top of an
410 - The NetworkManager plugin has been extended to support certificate client
411 authentication using RSA keys loaded from a file or using ssh-agent.
413 - Daemon capability dropping has been ported to libcap and must be enabled
414 explicitly --with-capabilities=libcap. Future version will support the
415 newer libcap2 library.
417 - ipsec listalgs lists the IKEv2 cryptografic algorithms registered with the
418 charon keying daemon.
424 - A NetworkManager plugin allows GUI-based configuration of road-warrior
425 clients in a simple way. It features X509 based gateway authentication
426 and EAP client authentication, tunnel setup/teardown and storing passwords
427 in the Gnome Keyring.
429 - A new EAP-GTC plugin implements draft-sheffer-ikev2-gtc-00.txt and allows
430 username/password authentication against any PAM service on the gateway.
431 The new EAP method interacts nicely with the NetworkManager plugin and allows
432 client authentication against e.g. LDAP.
434 - Improved support for the EAP-Identity method. The new ipsec.conf eap_identity
435 parameter defines an additional identity to pass to the server in EAP
438 - The "ipsec statusall" command now lists CA restrictions, EAP
439 authentication types and EAP identities.
441 - Fixed two multithreading deadlocks occurring when starting up
442 several hundred tunnels concurrently.
444 - Fixed the --enable-integrity-test configure option which
445 computes a SHA-1 checksum over the libstrongswan library.
451 - Consistent logging of IKE and CHILD SAs at the audit (AUD) level.
453 - Improved the performance of the SQL-based virtual IP address pool
454 by introducing an additional addresses table. The leases table
455 storing only history information has become optional and can be
456 disabled by setting charon.plugins.sql.lease_history = no in
459 - The XFRM_STATE_AF_UNSPEC flag added to xfrm.h allows IPv4-over-IPv6
460 and IPv6-over-IPv4 tunnels with the 2.6.26 and later Linux kernels.
462 - management of different virtual IP pools for different
463 network interfaces have become possible.
465 - fixed a bug which prevented the assignment of more than 256
466 virtual IP addresses from a pool managed by an sql database.
468 - fixed a bug which did not delete own IPCOMP SAs in the kernel.
474 - Added statistics functions to ipsec pool --status and ipsec pool --leases
475 and input validation checks to various ipsec pool commands.
477 - ipsec statusall now lists all loaded charon plugins and displays
478 the negotiated IKEv2 cipher suite proposals.
480 - The openssl plugin supports the elliptic curve Diffie-Hellman groups
481 19, 20, 21, 25, and 26.
483 - The openssl plugin supports ECDSA authentication using elliptic curve
486 - Fixed a bug in stroke which caused multiple charon threads to close
487 the file descriptors during packet transfers over the stroke socket.
489 - ESP sequence numbers are now migrated in IPsec SA updates handled by
490 MOBIKE. Works only with Linux kernels >= 2.6.17.
496 - Fixed the strongswan.conf path configuration problem that occurred when
497 --sysconfig was not set explicitly in ./configure.
499 - Fixed a number of minor bugs that where discovered during the 4th
500 IKEv2 interoperability workshop in San Antonio, TX.
506 - Plugins for libstrongswan and charon can optionally be loaded according
507 to a configuration in strongswan.conf. Most components provide a
508 "load = " option followed by a space separated list of plugins to load.
509 This allows e.g. the fallback from a hardware crypto accelerator to
510 to software-based crypto plugins.
512 - Charons SQL plugin has been extended by a virtual IP address pool.
513 Configurations with a rightsourceip=%poolname setting query a SQLite or
514 MySQL database for leases. The "ipsec pool" command helps in administrating
515 the pool database. See ipsec pool --help for the available options
517 - The Authenticated Encryption Algorithms AES-CCM-8/12/16 and AES-GCM-8/12/16
518 for ESP are now supported starting with the Linux 2.6.25 kernel. The
519 syntax is e.g. esp=aes128ccm12 or esp=aes256gcm16.
525 - Support for "Hash and URL" encoded certificate payloads has been implemented
526 in the IKEv2 daemon charon. Using the "certuribase" option of a CA section
527 allows to assign a base URL to all certificates issued by the specified CA.
528 The final URL is then built by concatenating that base and the hex encoded
529 SHA1 hash of the DER encoded certificate. Note that this feature is disabled
530 by default and must be enabled using the option "charon.hash_and_url".
532 - The IKEv2 daemon charon now supports the "uniqueids" option to close multiple
533 IKE_SAs with the same peer. The option value "keep" prefers existing
534 connection setups over new ones, where the value "replace" replaces existing
537 - The crypto factory in libstrongswan additionaly supports random number
538 generators, plugins may provide other sources of randomness. The default
539 plugin reads raw random data from /dev/(u)random.
541 - Extended the credential framework by a caching option to allow plugins
542 persistent caching of fetched credentials. The "cachecrl" option has been
545 - The new trustchain verification introduced in 4.2.0 has been parallelized.
546 Threads fetching CRL or OCSP information no longer block other threads.
548 - A new IKEv2 configuration attribute framework has been introduced allowing
549 plugins to provide virtual IP addresses, and in the future, other
550 configuration attribute services (e.g. DNS/WINS servers).
552 - The stroke plugin has been extended to provide virtual IP addresses from
553 a pool defined in ipsec.conf. The "rightsourceip" parameter now accepts
554 address pools in CIDR notation (e.g. 10.1.1.0/24). The parameter also accepts
555 the value "%poolname", where "poolname" identifies a pool provided by a
558 - Fixed compilation on uClibc and a couple of other minor bugs.
560 - Set DPD defaults in ipsec starter to dpd_delay=30s and dpd_timeout=150s.
562 - The IKEv1 pluto daemon now supports the ESP encryption algorithm CAMELLIA
563 with key lengths of 128, 192, and 256 bits, as well as the authentication
564 algorithm AES_XCBC_MAC. Configuration example: esp=camellia192-aesxcbc.
570 - libstrongswan has been modularized to attach crypto algorithms,
571 credential implementations (keys, certificates) and fetchers dynamically
572 through plugins. Existing code has been ported to plugins:
573 - RSA/Diffie-Hellman implementation using the GNU Multi Precision library
574 - X509 certificate system supporting CRLs, OCSP and attribute certificates
575 - Multiple plugins providing crypto algorithms in software
576 - CURL and OpenLDAP fetcher
578 - libstrongswan gained a relational database API which uses pluggable database
579 providers. Plugins for MySQL and SQLite are available.
581 - The IKEv2 keying daemon charon is more extensible. Generic plugins may provide
582 connection configuration, credentials and EAP methods or control the daemon.
583 Existing code has been ported to plugins:
584 - EAP-AKA, EAP-SIM, EAP-MD5 and EAP-Identity
585 - stroke configuration, credential and control (compatible to pluto)
586 - XML bases management protocol to control and query the daemon
587 The following new plugins are available:
588 - An experimental SQL configuration, credential and logging plugin on
589 top of either MySQL or SQLite
590 - A unit testing plugin to run tests at daemon startup
592 - The authentication and credential framework in charon has been heavily
593 refactored to support modular credential providers, proper
594 CERTREQ/CERT payload exchanges and extensible authorization rules.
596 - The framework of strongSwan Manager has envolved to the web application
597 framework libfast (FastCGI Application Server w/ Templates) and is usable
598 by other applications.
604 - IKE rekeying in NAT situations did not inherit the NAT conditions
605 to the rekeyed IKE_SA so that the UDP encapsulation was lost with
606 the next CHILD_SA rekeying.
608 - Wrong type definition of the next_payload variable in id_payload.c
609 caused an INVALID_SYNTAX error on PowerPC platforms.
611 - Implemented IKEv2 EAP-SIM server and client test modules that use
612 triplets stored in a file. For details on the configuration see
613 the scenario 'ikev2/rw-eap-sim-rsa'.
619 - Fixed error in the ordering of the certinfo_t records in the ocsp cache that
620 caused multiple entries of the same serial number to be created.
622 - Implementation of a simple EAP-MD5 module which provides CHAP
623 authentication. This may be interesting in conjunction with certificate
624 based server authentication, as weak passwords can't be brute forced
625 (in contradiction to traditional IKEv2 PSK).
627 - A complete software based implementation of EAP-AKA, using algorithms
628 specified in 3GPP2 (S.S0055). This implementation does not use an USIM,
629 but reads the secrets from ipsec.secrets. Make sure to read eap_aka.h
632 - Support for vendor specific EAP methods using Expanded EAP types. The
633 interface to EAP modules has been slightly changed, so make sure to
634 check the changes if you're already rolling your own modules.
640 - The default _updown script now dynamically inserts and removes ip6tables
641 firewall rules if leftfirewall=yes is set in IPv6 connections. New IPv6
642 net-net and roadwarrior (PSK/RSA) scenarios for both IKEv1 and IKEV2 were
645 - Implemented RFC4478 repeated authentication to force EAP/Virtual-IP clients
646 to reestablish an IKE_SA within a given timeframe.
648 - strongSwan Manager supports configuration listing, initiation and termination
649 of IKE and CHILD_SAs.
651 - Fixes and improvements to multithreading code.
653 - IKEv2 plugins have been renamed to libcharon-* to avoid naming conflicts.
654 Make sure to remove the old plugins in $libexecdir/ipsec, otherwise they get
661 - Removed recursive pthread mutexes since uClibc doesn't support them.
667 - In NAT traversal situations and multiple queued Quick Modes,
668 those pending connections inserted by auto=start after the
669 port floating from 500 to 4500 were erronously deleted.
671 - Added a "forceencaps" connection parameter to enforce UDP encapsulation
672 to surmount restrictive firewalls. NAT detection payloads are faked to
673 simulate a NAT situation and trick the other peer into NAT mode (IKEv2 only).
675 - Preview of strongSwan Manager, a web based configuration and monitoring
676 application. It uses a new XML control interface to query the IKEv2 daemon
677 (see http://trac.strongswan.org/wiki/Manager).
679 - Experimental SQLite configuration backend which will provide the configuration
680 interface for strongSwan Manager in future releases.
682 - Further improvements to MOBIKE support.
688 - Since some third party IKEv2 implementations run into
689 problems with strongSwan announcing MOBIKE capability per
690 default, MOBIKE can be disabled on a per-connection-basis
691 using the mobike=no option. Whereas mobike=no disables the
692 sending of the MOBIKE_SUPPORTED notification and the floating
693 to UDP port 4500 with the IKE_AUTH request even if no NAT
694 situation has been detected, strongSwan will still support
695 MOBIKE acting as a responder.
697 - the default ipsec routing table plus its corresponding priority
698 used for inserting source routes has been changed from 100 to 220.
699 It can be configured using the --with-ipsec-routing-table and
700 --with-ipsec-routing-table-prio options.
702 - the --enable-integrity-test configure option tests the
703 integrity of the libstrongswan crypto code during the charon
706 - the --disable-xauth-vid configure option disables the sending
707 of the XAUTH vendor ID. This can be used as a workaround when
708 interoperating with some Windows VPN clients that get into
709 trouble upon reception of an XAUTH VID without eXtended
710 AUTHentication having been configured.
712 - ipsec stroke now supports the rereadsecrets, rereadaacerts,
713 rereadacerts, and listacerts options.
719 - If a DNS lookup failure occurs when resolving right=%<FQDN>
720 or right=<FQDN> combined with rightallowany=yes then the
721 connection is not updated by ipsec starter thus preventing
722 the disruption of an active IPsec connection. Only if the DNS
723 lookup successfully returns with a changed IP address the
724 corresponding connection definition is updated.
726 - Routes installed by the keying daemons are now in a separate
727 routing table with the ID 100 to avoid conflicts with the main
728 table. Route lookup for IKEv2 traffic is done in userspace to ignore
729 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
735 - The pluto IKEv1 daemon now exhibits the same behaviour as its
736 IKEv2 companion charon by inserting an explicit route via the
737 _updown script only if a sourceip exists. This is admissible
738 since routing through the IPsec tunnel is handled automatically
739 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
740 parameter is not required any more.
742 - The new IKEv1 parameter right|leftallowany parameters helps to handle
743 the case where both peers possess dynamic IP addresses that are
744 usually resolved using DynDNS or a similar service. The configuration
749 can be used by the initiator to start up a connection to a peer
750 by resolving peer.foo.bar into the currently allocated IP address.
751 Thanks to the rightallowany flag the connection behaves later on
756 so that the peer can rekey the connection as an initiator when his
757 IP address changes. An alternative notation is
761 which will implicitly set rightallowany=yes.
763 - ipsec starter now fails more gracefully in the presence of parsing
764 errors. Flawed ca and conn section are discarded and pluto is started
765 if non-fatal errors only were encountered. If right=%peer.foo.bar
766 cannot be resolved by DNS then right=%any will be used so that passive
767 connections as a responder are still possible.
769 - The new pkcs11initargs parameter that can be placed in the
770 setup config section of /etc/ipsec.conf allows the definition
771 of an argument string that is used with the PKCS#11 C_Initialize()
772 function. This non-standard feature is required by the NSS softoken
773 library. This patch was contributed by Robert Varga.
775 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
776 which caused a segmentation fault in the presence of unknown
777 or misspelt keywords in ipsec.conf. This bug fix was contributed
780 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
781 address configuration changes and updates IKE and IPsec SAs dynamically.
787 - IKEv2 peer configuration selection now can be based on a given
788 certification authority using the rightca= statement.
790 - IKEv2 authentication based on RSA signatures now can handle multiple
791 certificates issued for a given peer ID. This allows a smooth transition
792 in the case of a peer certificate renewal.
794 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
795 client and returning requested virtual IPs using rightsourceip=%config
796 on the server. If the server does not support configuration payloads, the
797 client enforces its leftsourceip parameter.
799 - The ./configure options --with-uid/--with-gid allow pluto and charon
800 to drop their privileges to a minimum and change to an other UID/GID. This
801 improves the systems security, as a possible intruder may only get the
802 CAP_NET_ADMIN capability.
804 - Further modularization of charon: Pluggable control interface and
805 configuration backend modules provide extensibility. The control interface
806 for stroke is included, and further interfaces using DBUS (NetworkManager)
807 or XML are on the way. A backend for storing configurations in the daemon
808 is provided and more advanced backends (using e.g. a database) are trivial
811 - Fixed a compilation failure in libfreeswan occuring with Linux kernel
818 - Support for an additional Diffie-Hellman exchange when creating/rekeying
819 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
820 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
821 is implemented properly for rekeying.
823 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
824 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
826 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
828 - Added support for EAP modules which do not establish an MSK.
830 - Removed the dependencies from the /usr/include/linux/ headers by
831 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
833 - crlNumber is now listed by ipsec listcrls
835 - The xauth_modules.verify_secret() function now passes the
842 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
843 cookies are enabled and protect against DoS attacks with faked source
844 addresses. Number of IKE_SAs in CONNECTING state is also limited per
845 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
846 compared to properly detect retransmissions and incoming retransmits are
847 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
849 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
850 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
851 enabled by cachecrls=yes.
853 - Added the configuration options --enable-nat-transport which enables
854 the potentially insecure NAT traversal for IPsec transport mode and
855 --disable-vendor-id which disables the sending of the strongSwan
858 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
859 a segmentation fault if a malformed payload was detected in the
860 IKE MR2 message and pluto tried to send an encrypted notification
863 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
864 with Windows 2003 Server which uses a wrong VID hash.
870 - Support of SHA2_384 hash function for protecting IKEv1
871 negotiations and support of SHA2 signatures in X.509 certificates.
873 - Fixed a serious bug in the computation of the SHA2-512 HMAC
874 function. Introduced automatic self-test of all IKEv1 hash
875 and hmac functions during pluto startup. Failure of a self-test
876 currently issues a warning only but does not exit pluto [yet].
878 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
880 - Full support of CA information sections. ipsec listcainfos
881 now shows all collected crlDistributionPoints and OCSP
884 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
885 This feature requires the HTTP fetching capabilities of the libcurl
886 library which must be enabled by setting the --enable-http configure
889 - Refactored core of the IKEv2 message processing code, allowing better
890 code reuse and separation.
892 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
893 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
894 by the requestor and installed in a resolv.conf file.
896 - The IKEv2 daemon charon installs a route for each IPsec policy to use
897 the correct source address even if an application does not explicitly
900 - Integrated the EAP framework into charon which loads pluggable EAP library
901 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
902 on the client side, while the "eap" parameter on the server side defines
903 the EAP method to use for client authentication.
904 A generic client side EAP-Identity module and an EAP-SIM authentication
905 module using a third party card reader implementation are included.
907 - Added client side support for cookies.
909 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
910 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
911 fixes to enhance interoperability with other implementations.
917 - strongSwan now interoperates with the NCP Secure Entry Client,
918 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
919 XAUTH and Mode Config.
921 - UNITY attributes are now recognized and UNITY_BANNER is set
928 - IKEv1: Support for extended authentication (XAUTH) in combination
929 with ISAKMP Main Mode RSA or PSK authentication. Both client and
930 server side were implemented. Handling of user credentials can
931 be done by a run-time loadable XAUTH module. By default user
932 credentials are stored in ipsec.secrets.
934 - IKEv2: Support for reauthentication when rekeying
936 - IKEv2: Support for transport mode
938 - fixed a lot of bugs related to byte order
940 - various other bugfixes
946 - IKEv1: Implementation of ModeConfig push mode via the new connection
947 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
949 - IKEv1: The command ipsec statusall now shows "DPD active" for all
950 ISAKMP SAs that are under active Dead Peer Detection control.
952 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
953 Instead of logger, special printf() functions are used to directly
954 print objects like hosts (%H) identifications (%D), certificates (%Q),
955 etc. The number of debugging levels have been reduced to:
957 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
959 The debugging levels can either be specified statically in ipsec.conf as
962 charondebug="lib 1, cfg 3, net 2"
964 or changed at runtime via stroke as
966 ipsec stroke loglevel cfg 2
972 - Implemented full support for IPv6-in-IPv6 tunnels.
974 - Added configuration options for dead peer detection in IKEv2. dpd_action
975 types "clear", "hold" and "restart" are supported. The dpd_timeout
976 value is not used, as the normal retransmission policy applies to
977 detect dead peers. The dpd_delay parameter enables sending of empty
978 informational message to detect dead peers in case of inactivity.
980 - Added support for preshared keys in IKEv2. PSK keys configured in
981 ipsec.secrets are loaded. The authby parameter specifies the authentication
982 method to authentificate ourself, the other peer may use PSK or RSA.
984 - Changed retransmission policy to respect the keyingtries parameter.
986 - Added private key decryption. PEM keys encrypted with AES-128/192/256
987 or 3DES are supported.
989 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
992 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
993 signed with such a hash algorithm.
995 - Added initial support for updown scripts. The actions up-host/client and
996 down-host/client are executed. The leftfirewall=yes parameter
997 uses the default updown script to insert dynamic firewall rules, a custom
998 updown script may be specified with the leftupdown parameter.
1004 - Added support for the auto=route ipsec.conf parameter and the
1005 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
1006 CHILD_SAs dynamically on demand when traffic is detected by the
1009 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
1010 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
1011 new keys are generated using perfect forward secrecy. An optional flag
1012 which enforces reauthentication will be implemented later.
1014 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
1015 algorithm configuration statements.
1021 - Full X.509 certificate trust chain verification has been implemented.
1022 End entity certificates can be exchanged via CERT payloads. The current
1023 default is leftsendcert=always, since CERTREQ payloads are not supported
1024 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
1026 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
1027 would offer more possibilities for traffic selection, but the Linux kernel
1028 currently does not support it. That's why we stick with these simple
1029 ipsec.conf rules for now.
1031 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
1032 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
1035 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
1036 notify payloads to detect NAT routers between the peers. It switches
1037 to port 4500, uses UDP encapsulated ESP packets, handles peer address
1038 changes gracefully and sends keep alive message periodically.
1040 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
1041 rekeying, more shared code, cleaner design, proper retransmission
1042 and a more extensible code base.
1044 - The mixed PSK/RSA roadwarrior detection capability introduced by the
1045 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
1046 payloads by the responder right before any defined IKE Main Mode state had
1047 been established. Although any form of bad proposal syntax was being correctly
1048 detected by the payload parser, the subsequent error handler didn't check
1049 the state pointer before logging current state information, causing an
1050 immediate crash of the pluto keying daemon due to a NULL pointer.
1056 - Added algorithm selection to charon: New default algorithms for
1057 ike=aes128-sha-modp2048, as both daemons support it. The default
1058 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
1059 the ike/esp parameter the same way as pluto. As this syntax does
1060 not allow specification of a pseudo random function, the same
1061 algorithm as for integrity is used (currently sha/md5). Supported
1063 Encryption: aes128, aes192, aes256
1064 Integrity/PRF: md5, sha (using hmac)
1065 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
1067 Encryption: aes128, aes192, aes256, 3des, blowfish128,
1068 blowfish192, blowfish256
1069 Integrity: md5, sha1
1070 More IKE encryption algorithms will come after porting libcrypto into
1073 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
1074 perfect forward secrecy is used. The rekeying parameters rekey,
1075 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
1076 when using IKEv2. WARNING: charon currently is unable to handle
1077 simultaneous rekeying. To avoid such a situation, use a large
1078 rekeyfuzz, or even better, set rekey=no on one peer.
1080 - support for host2host, net2net, host2net (roadwarrior) tunnels
1081 using predefined RSA certificates (see uml scenarios for
1082 configuration examples).
1084 - new build environment featuring autotools. Features such
1085 as HTTP, LDAP and smartcard support may be enabled using
1086 the ./configure script. Changing install directories
1087 is possible, too. See ./configure --help for more details.
1089 - better integration of charon with ipsec starter, which allows
1090 (almost) transparent operation with both daemons. charon
1091 handles ipsec commands up, down, status, statusall, listall,
1092 listcerts and allows proper load, reload and delete of connections
1099 - initial support of the IKEv2 protocol. Connections in
1100 ipsec.conf designated by keyexchange=ikev2 are negotiated
1101 by the new IKEv2 charon keying daemon whereas those marked
1102 by keyexchange=ikev1 or the default keyexchange=ike are
1103 handled thy the IKEv1 pluto keying daemon. Currently only
1104 a limited subset of functions are available with IKEv2
1105 (Default AES encryption, authentication based on locally
1106 imported X.509 certificates, unencrypted private RSA keys
1107 in PKCS#1 file format, limited functionality of the ipsec
1114 - the dynamic iptables rules from the _updown_x509 template
1115 for KLIPS and the _updown_policy template for NETKEY have
1116 been merged into the default _updown script. The existing
1117 left|rightfirewall keyword causes the automatic insertion
1118 and deletion of ACCEPT rules for tunneled traffic upon
1119 the successful setup and teardown of an IPsec SA, respectively.
1120 left|rightfirwall can be used with KLIPS under any Linux 2.4
1121 kernel or with NETKEY under a Linux kernel version >= 2.6.16
1122 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
1123 kernel version < 2.6.16 which does not support IPsec policy
1124 matching yet, please continue to use a copy of the _updown_espmark
1125 template loaded via the left|rightupdown keyword.
1127 - a new left|righthostaccess keyword has been introduced which
1128 can be used in conjunction with left|rightfirewall and the
1129 default _updown script. By default leftfirewall=yes inserts
1130 a bi-directional iptables FORWARD rule for a local client network
1131 with a netmask different from 255.255.255.255 (single host).
1132 This does not allow to access the VPN gateway host via its
1133 internal network interface which is part of the client subnet
1134 because an iptables INPUT and OUTPUT rule would be required.
1135 lefthostaccess=yes will cause this additional ACCEPT rules to
1138 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
1139 payload is preparsed in order to find out whether the roadwarrior
1140 requests PSK or RSA so that a matching connection candidate can
1147 - the new _updown_policy template allows ipsec policy based
1148 iptables firewall rules. Required are iptables version
1149 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
1150 the _updown_espmark template, so that no INPUT mangle rules
1151 are required any more.
1153 - added support of DPD restart mode
1155 - ipsec starter now allows the use of wildcards in include
1156 statements as e.g. in "include /etc/my_ipsec/*.conf".
1157 Patch courtesy of Matthias Haas.
1159 - the Netscape OID 'employeeNumber' is now recognized and can be
1160 used as a Relative Distinguished Name in certificates.
1166 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
1167 command and not of ipsec setup any more.
1169 - ipsec starter now supports AH authentication in conjunction with
1170 ESP encryption. AH authentication is configured in ipsec.conf
1171 via the auth=ah parameter.
1173 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
1174 ipsec whack --scencrypt|scdecrypt <args>.
1176 - get_sa_info() now determines for the native netkey IPsec stack
1177 the exact time of the last use of an active eroute. This information
1178 is used by the Dead Peer Detection algorithm and is also displayed by
1179 the ipsec status command.
1185 - running under the native Linux 2.6 IPsec stack, the function
1186 get_sa_info() is called by ipsec auto --status to display the current
1187 number of transmitted bytes per IPsec SA.
1189 - get_sa_info() is also used by the Dead Peer Detection process to detect
1190 recent ESP activity. If ESP traffic was received from the peer within
1191 the last dpd_delay interval then no R_Y_THERE notification must be sent.
1193 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
1194 in ID_DER_ASN1_DN identities. The following notations are possible:
1196 rightid="unstructuredName=John Doe"
1197 rightid="UN=John Doe"
1199 - fixed a long-standing bug which caused PSK-based roadwarrior connections
1200 to segfault in the function id.c:same_id() called by keys.c:get_secret()
1201 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
1208 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
1210 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
1212 - in order to guarantee backwards-compatibility with the script-based
1213 auto function (e.g. auto --replace), the ipsec starter scripts stores
1214 the defaultroute information in the temporary file /var/run/ipsec.info.
1216 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
1217 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
1220 - the ipsec starter now also recognizes the parameters authby=never and
1221 type=passthrough|pass|drop|reject.
1227 - ipsec starter now supports the also parameter which allows
1228 a modular structure of the connection definitions. Thus
1229 "ipsec start" is now ready to replace "ipsec setup".
1235 - Mathieu Lafon's popular ipsec starter tool has been added to the
1236 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
1237 for his integration work. ipsec starter is a C program which is going
1238 to replace the various shell and awk starter scripts (setup, _plutoload,
1239 _plutostart, _realsetup, _startklips, _confread, and auto). Since
1240 ipsec.conf is now parsed only once, the starting of multiple tunnels is
1241 accelerated tremedously.
1243 - Added support of %defaultroute to the ipsec starter. If the IP address
1244 changes, a HUP signal to the ipsec starter will automatically
1245 reload pluto's connections.
1247 - moved most compile time configurations from pluto/Makefile to
1248 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
1249 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
1251 - removed the ipsec verify and ipsec newhostkey commands
1253 - fixed some 64-bit issues in formatted print statements
1255 - The scepclient functionality implementing the Simple Certificate
1256 Enrollment Protocol (SCEP) is nearly complete but hasn't been
1263 - CA certicates are now automatically loaded from a smartcard
1264 or USB crypto token and appear in the ipsec auto --listcacerts
1271 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
1272 library that does not support the C_Encrypt() Cryptoki
1273 function (e.g. OpenSC), the RSA encryption is done in
1274 software using the public key fetched from the smartcard.
1276 - The scepclient function now allows to define the
1277 validity of a self-signed certificate using the --days,
1278 --startdate, and --enddate options. The default validity
1279 has been changed from one year to five years.
1285 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
1286 interface to other applications for RSA encryption and decryption
1287 via the whack interface. Notation:
1289 ipsec whack --scencrypt <data>
1290 [--inbase 16|hex|64|base64|256|text|ascii]
1291 [--outbase 16|hex|64|base64|256|text|ascii]
1294 ipsec whack --scdecrypt <data>
1295 [--inbase 16|hex|64|base64|256|text|ascii]
1296 [--outbase 16|hex|64|base64|256|text|ascii]
1299 The default setting for inbase and outbase is hex.
1301 The new proxy interface can be used for securing symmetric
1302 encryption keys required by the cryptoloop or dm-crypt
1303 disk encryption schemes, especially in the case when
1304 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
1307 - if the file /etc/ipsec.secrets is lacking during the startup of
1308 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
1309 containing a 2048 bit RSA private key and a matching self-signed
1310 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
1311 is automatically generated by calling the function
1313 ipsec scepclient --out pkcs1 --out cert-self
1315 scepclient was written by Jan Hutter and Martin Willi, students
1316 at the University of Applied Sciences in Rapperswil, Switzerland.
1322 - the current extension of the PKCS#7 framework introduced
1323 a parsing error in PKCS#7 wrapped X.509 certificates that are
1324 e.g. transmitted by Windows XP when multi-level CAs are used.
1325 the parsing syntax has been fixed.
1327 - added a patch by Gerald Richter which tolerates multiple occurrences
1328 of the ipsec0 interface when using KLIPS.
1334 - with gawk-3.1.4 the word "default2 has become a protected
1335 keyword for use in switch statements and cannot be used any
1336 more in the strongSwan scripts. This problem has been
1337 solved by renaming "default" to "defaults" and "setdefault"
1338 in the scripts _confread and auto, respectively.
1340 - introduced the parameter leftsendcert with the values
1342 always|yes (the default, always send a cert)
1343 ifasked (send the cert only upon a cert request)
1344 never|no (never send a cert, used for raw RSA keys and
1347 - fixed the initialization of the ESP key length to a default of
1348 128 bits in the case that the peer does not send a key length
1349 attribute for AES encryption.
1351 - applied Herbert Xu's uniqueIDs patch
1353 - applied Herbert Xu's CLOEXEC patches
1359 - CRLs can now be cached also in the case when the issuer's
1360 certificate does not contain a subjectKeyIdentifier field.
1361 In that case the subjectKeyIdentifier is computed by pluto as the
1362 160 bit SHA-1 hash of the issuer's public key in compliance
1363 with section 4.2.1.2 of RFC 3280.
1365 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
1366 not only multiple Quick Modes of a given connection but also
1367 multiple connections between two security gateways.
1373 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
1374 installed either by setting auto=route in ipsec.conf or by
1375 a connection put into hold, generates an XFRM_AQUIRE event
1376 for each packet that wants to use the not-yet exisiting
1377 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
1378 the Quick Mode queue, causing multiple IPsec SA to be
1379 established in rapid succession. Starting with strongswan-2.5.1
1380 only a single IPsec SA is established per host-pair connection.
1382 - Right after loading the PKCS#11 module, all smartcard slots are
1383 searched for certificates. The result can be viewed using
1386 ipsec auto --listcards
1388 The certificate objects found in the slots are numbered
1389 starting with #1, #2, etc. This position number can be used to address
1390 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
1391 in ipsec.conf and ipsec.secrets, respectively:
1393 %smartcard (selects object #1)
1394 %smartcard#1 (selects object #1)
1395 %smartcard#3 (selects object #3)
1397 As an alternative the existing retrieval scheme can be used:
1399 %smartcard:45 (selects object with id=45)
1400 %smartcard0 (selects first object in slot 0)
1401 %smartcard4:45 (selects object in slot 4 with id=45)
1403 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
1404 private key flags either C_Sign() or C_Decrypt() is used
1405 to generate a signature.
1407 - The output buffer length parameter siglen in C_Sign()
1408 is now initialized to the actual size of the output
1409 buffer prior to the function call. This fixes the
1410 CKR_BUFFER_TOO_SMALL error that could occur when using
1411 the OpenSC PKCS#11 module.
1413 - Changed the initialization of the PKCS#11 CK_MECHANISM in
1414 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
1416 - Refactored the RSA public/private key code and transferred it
1417 from keys.c to the new pkcs1.c file as a preparatory step
1418 towards the release of the SCEP client.
1424 - The loading of a PKCS#11 smartcard library module during
1425 runtime does not require OpenSC library functions any more
1426 because the corresponding code has been integrated into
1427 smartcard.c. Also the RSAREF pkcs11 header files have been
1428 included in a newly created pluto/rsaref directory so that
1429 no external include path has to be defined any longer.
1431 - A long-awaited feature has been implemented at last:
1432 The local caching of CRLs fetched via HTTP or LDAP, activated
1433 by the parameter cachecrls=yes in the config setup section
1434 of ipsec.conf. The dynamically fetched CRLs are stored under
1435 a unique file name containing the issuer's subjectKeyID
1436 in /etc/ipsec.d/crls.
1438 - Applied a one-line patch courtesy of Michael Richardson
1439 from the Openswan project which fixes the kernel-oops
1440 in KLIPS when an snmp daemon is running on the same box.
1446 - Eliminated null length CRL distribution point strings.
1448 - Fixed a trust path evaluation bug introduced with 2.4.3
1454 - Improved the joint OCSP / CRL revocation policy.
1455 OCSP responses have precedence over CRL entries.
1457 - Introduced support of CRLv2 reason codes.
1459 - Fixed a bug with key-pad equipped readers which caused
1460 pluto to prompt for the pin via the console when the first
1461 occasion to enter the pin via the key-pad was missed.
1463 - When pluto is built with LDAP_V3 enabled, the library
1464 liblber required by newer versions of openldap is now
1471 - Added the _updown_espmark template which requires all
1472 incoming ESP traffic to be marked with a default mark
1475 - Introduced the pkcs11keepstate parameter in the config setup
1476 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
1477 session and login states are kept as long as possible during
1478 the lifetime of pluto. This means that a PIN entry via a key
1479 pad has to be done only once.
1481 - Introduced the pkcs11module parameter in the config setup
1482 section of ipsec.conf which specifies the PKCS#11 module
1483 to be used with smart cards. Example:
1485 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
1487 - Added support of smartcard readers equipped with a PIN pad.
1489 - Added patch by Jay Pfeifer which detects when netkey
1490 modules have been statically built into the Linux 2.6 kernel.
1492 - Added two patches by Herbert Xu. The first uses ip xfrm
1493 instead of setkey to flush the IPsec policy database. The
1494 second sets the optional flag in inbound IPComp SAs only.
1496 - Applied Ulrich Weber's patch which fixes an interoperability
1497 problem between native IPsec and KLIPS systems caused by
1498 setting the replay window to 32 instead of 0 for ipcomp.
1504 - Fixed a bug which caused an unwanted Mode Config request
1505 to be initiated in the case where "right" was used to denote
1506 the local side in ipsec.conf and "left" the remote side,
1507 contrary to the recommendation that "right" be remote and
1514 - updated Vendor ID to strongSwan-2.4.0
1516 - updated copyright statement to include David Buechi and
1523 - strongSwan now communicates with attached smartcards and
1524 USB crypto tokens via the standardized PKCS #11 interface.
1525 By default the OpenSC library from www.opensc.org is used
1526 but any other PKCS#11 library could be dynamically linked.
1527 strongSwan's PKCS#11 API was implemented by David Buechi
1528 and Michael Meier, both graduates of the Zurich University
1529 of Applied Sciences in Winterthur, Switzerland.
1531 - When a %trap eroute is triggered by an outgoing IP packet
1532 then the native IPsec stack of the Linux 2.6 kernel [often/
1533 always?] returns an XFRM_ACQUIRE message with an undefined
1534 protocol family field and the connection setup fails.
1535 As a workaround IPv4 (AF_INET) is now assumed.
1537 - the results of the UML test scenarios are now enhanced
1538 with block diagrams of the virtual network topology used
1539 in a particular test.
1545 - fixed IV used to decrypt informational messages.
1546 This bug was introduced with Mode Config functionality.
1548 - fixed NCP Vendor ID.
1550 - undid one of Ulrich Weber's maximum udp size patches
1551 because it caused a segmentation fault with NAT-ed
1554 - added UML scenarios wildcards and attr-cert which
1555 demonstrate the implementation of IPsec policies based
1556 on wildcard parameters contained in Distinguished Names and
1557 on X.509 attribute certificates, respectively.
1563 - Added basic Mode Config functionality
1565 - Added Mathieu Lafon's patch which upgrades the status of
1566 the NAT-Traversal implementation to RFC 3947.
1568 - The _startklips script now also loads the xfrm4_tunnel
1571 - Added Ulrich Weber's netlink replay window size and
1572 maximum udp size patches.
1574 - UML testing now uses the Linux 2.6.10 UML kernel by default.
1580 - Eric Marchionni and Patrik Rayo, both recent graduates from
1581 the Zuercher Hochschule Winterthur in Switzerland, created a
1582 User-Mode-Linux test setup for strongSwan. For more details
1583 please read the INSTALL and README documents in the testing
1586 - Full support of group attributes based on X.509 attribute
1587 certificates. Attribute certificates can be generated
1588 using the openac facility. For more details see
1592 The group attributes can be used in connection definitions
1593 in order to give IPsec access to specific user groups.
1594 This is done with the new parameter left|rightgroups as in
1596 rightgroups="Research, Sales"
1598 giving access to users possessing the group attributes
1599 Research or Sales, only.
1601 - In Quick Mode clients with subnet mask /32 are now
1602 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
1603 fix rekeying problems with the SafeNet/SoftRemote and NCP
1604 Secure Entry Clients.
1606 - Changed the defaults of the ikelifetime and keylife parameters
1607 to 3h and 1h, respectively. The maximum allowable values are
1608 now both set to 24 h.
1610 - Suppressed notification wars between two IPsec peers that
1611 could e.g. be triggered by incorrect ISAKMP encryption.
1613 - Public RSA keys can now have identical IDs if either the
1614 issuing CA or the serial number is different. The serial
1615 number of a certificate is now shown by the command
1617 ipsec auto --listpubkeys
1623 - Added Tuomo Soini's sourceip feature which allows a strongSwan
1624 roadwarrior to use a fixed Virtual IP (see README section 2.6)
1625 and reduces the well-known four tunnel case on VPN gateways to
1626 a single tunnel definition (see README section 2.4).
1628 - Fixed a bug occuring with NAT-Traversal enabled when the responder
1629 suddenly turns initiator and the initiator cannot find a matching
1630 connection because of the floated IKE port 4500.
1632 - Removed misleading ipsec verify command from barf.
1634 - Running under the native IP stack, ipsec --version now shows
1635 the Linux kernel version (courtesy to the Openswan project).
1641 - Introduced the ipsec auto --listalgs monitoring command which lists
1642 all currently registered IKE and ESP algorithms.
1644 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
1645 is set and the first proposed transform does not match.
1647 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
1648 occuring when a smartcard is present.
1650 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
1652 - Fixed the printing of the notification names (null)
1654 - Applied another of Herbert Xu's Netlink patches.
1660 - Support of Dead Peer Detection. The connection parameter
1662 dpdaction=clear|hold
1664 activates DPD for the given connection.
1666 - The default Opportunistic Encryption (OE) policy groups are not
1667 automatically included anymore. Those wishing to activate OE can include
1668 the policy group with the following statement in ipsec.conf:
1670 include /etc/ipsec.d/examples/oe.conf
1672 The default for [right|left]rsasigkey is now set to %cert.
1674 - strongSwan now has a Vendor ID of its own which can be activated
1675 using the compile option VENDORID
1677 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
1679 - Applied Herbert Xu's patch fixing an ESPINUDP problem
1681 - Applied Herbert Xu's patch setting source/destination port numbers.
1683 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
1684 lost during the migration from SuperFreeS/WAN.
1686 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
1688 - Fixed the unsharing of alg parameters when instantiating group
1695 - Thomas Walpuski made me aware of a potential DoS attack via
1696 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
1697 certificates in Pluto's authority certificate store. This vulnerability
1698 was fixed by establishing trust in CA candidate certificates up to a
1699 trusted root CA prior to insertion into Pluto's chained list.
1701 - replaced the --assign option by the -v option in the auto awk script
1702 in order to make it run with mawk under debian/woody.
1708 - Split of the status information between ipsec auto --status (concise)
1709 and ipsec auto --statusall (verbose). Both commands can be used with
1710 an optional connection selector:
1712 ipsec auto --status[all] <connection_name>
1714 - Added the description of X.509 related features to the ipsec_auto(8)
1717 - Hardened the ASN.1 parser in debug mode, especially the printing
1718 of malformed distinguished names.
1720 - The size of an RSA public key received in a certificate is now restricted to
1722 512 bits <= modulus length <= 8192 bits.
1724 - Fixed the debug mode enumeration.
1730 - Fixed another PKCS#7 vulnerability which could lead to an
1731 endless loop while following the X.509 trust chain.
1737 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
1738 that accepted end certificates having identical issuer and subject
1739 distinguished names in a multi-tier X.509 trust chain.
1745 - Removed all remaining references to ipsec_netlink.h in KLIPS.
1751 - The new "ca" section allows to define the following parameters:
1754 cacert=koolCA.pem # cacert of kool CA
1755 ocspuri=http://ocsp.kool.net:8001 # ocsp server
1756 ldapserver=ldap.kool.net # default ldap server
1757 crluri=http://www.kool.net/kool.crl # crl distribution point
1758 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
1759 auto=add # add, ignore
1761 The ca definitions can be monitored via the command
1763 ipsec auto --listcainfos
1765 - Fixed cosmetic corruption of /proc filesystem by integrating
1766 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
1772 - Added support for the 818043 NAT-Traversal update of Microsoft's
1773 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
1775 - A symbolic link to libcrypto is now added in the kernel sources
1776 during kernel compilation
1778 - Fixed a couple of 64 bit issues (mostly casts to int).
1779 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
1781 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
1782 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
1783 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
1789 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
1790 certificate extension which contains no generalName item) can cause
1791 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
1792 been hardened to make it more robust against malformed ASN.1 objects.
1794 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
1795 Linux 2.6 IPsec stack.
1801 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12
projects / strongswan.git / blob