4 - The new gcrypt plugin provides symmetric cipher, hasher, RNG, Diffie-Hellman
5 and RSA crypto primitives using the LGPL licensed GNU gcrypt library.
7 - libstrongswan features an integrated crypto selftest framework for registered
8 algorithms. The test-vector plugin provides a first set of test vectors and
9 allows pluto and charon to rely on tested crypto algorithms.
11 - pluto can now use all libstrongswan plugins with the exception of x509 and xcbc.
12 Thanks to the openssl plugin, the ECP Diffie-Hellman groups 19, 20, 21, 25, and
13 26 as well as ECDSA-256, ECDSA-384, and ECDSA-521 authentication can be used
20 - The nm plugin now passes DNS/NBNS server information to NetworkManager,
21 allowing a gateway administrator to set DNS/NBNS configuration on clients
24 - The nm plugin also accepts CA certificates for gateway authentication. If
25 a CA certificate is configured, strongSwan uses the entered gateway address
26 as its idenitity, requiring the gateways certificate to contain the same as
27 subjectAltName. This allows a gateway administrator to deploy the same
28 certificates to Windows 7 and NetworkManager clients.
30 - The command ipsec purgeike deletes IKEv2 SAs that don't have a CHILD SA.
31 The command ipsec down <conn>{n} deletes CHILD SA instance n of connection
32 <conn> whereas ipsec down <conn>{*} deletes all CHILD SA instances.
33 The command ipsec down <conn>[n] deletes IKE SA instance n of connection
34 <conn> plus dependent CHILD SAs whereas ipsec down <conn>[*] deletes all
35 IKE SA instances of connection <conn>.
37 - Fixed a regression introduced in 4.3.0 where EAP authentication calculated
38 the AUTH payload incorrectly. Further, the EAP-MSCHAPv2 MSK key derivation
39 has been updated to be compatible with the Windows 7 Release Candidate.
41 - Refactored installation of triggering policies. Routed policies are handled
42 outside of IKE_SAs to keep them installed in any case. A tunnel gets
43 established only once, even if initiation is delayed due network outages.
45 - Improved the handling of multiple acquire signals triggered by the kernel.
47 - Fixed two DoS vulnerabilities in the charon daemon that were discovered by
48 fuzzing techniques: 1) Sending a malformed IKE_SA_INIT request leaved an
49 incomplete state which caused a null pointer dereference if a subsequent
50 CREATE_CHILD_SA request was sent. 2) Sending an IKE_AUTH request with either
51 a missing TSi or TSr payload caused a null pointer derefence because the
52 checks for TSi and TSr were interchanged. The IKEv2 fuzzer used was
53 developped by the Orange Labs vulnerability research team. The tool was
54 initially written by Gabriel Campana and is now maintained by Laurent Butti.
56 - Added support for AES counter mode in ESP in IKEv2 using the proposal
57 keywords aes128ctr, aes192ctr and aes256ctr.
59 - Further progress in refactoring pluto: Use of the curl and ldap plugins
60 for fetching crls and OCSP. Use of the random plugin to get keying material
61 from /dev/random or /dev/urandom. Use of the openssl plugin as an alternative
62 to the aes, des, sha1, sha2, and md5 plugins. The blowfish, twofish, and
63 serpent encryption plugins are now optional and are not enabled by default.
69 - Support for the IKEv2 Multiple Authentication Exchanges extension (RFC4739).
70 Initiators and responders can use several authentication rounds (e.g. RSA
71 followed by EAP) to authenticate. The new ipsec.conf leftauth/rightauth and
72 leftauth2/rightauth2 parameters define own authentication rounds or setup
73 constraints for the remote peer. See the ipsec.conf man page for more detials.
75 - If glibc printf hooks (register_printf_function) are not available,
76 strongSwan can use the vstr string library to run on non-glibc systems.
78 - The IKEv2 charon daemon can now configure the ESP CAMELLIA-CBC cipher
79 (esp=camellia128|192|256).
81 - Refactored the pluto and scepclient code to use basic functions (memory
82 allocation, leak detective, chunk handling, printf_hooks, strongswan.conf
83 attributes, ASN.1 parser, etc.) from the libstrongswan library.
85 - Up to two DNS and WINS servers to be sent via IKEv1 ModeConfig can be
86 configured in the pluto section of strongswan.conf.
92 - The new server-side EAP RADIUS plugin (--enable-eap-radius)
93 relays EAP messages to and from a RADIUS server. Succesfully
94 tested with with a freeradius server using EAP-MD5 and EAP-SIM.
96 - A vulnerability in the Dead Peer Detection (RFC 3706) code was found by
97 Gerd v. Egidy <gerd.von.egidy@intra2net.com> of Intra2net AG affecting
98 all Openswan and strongSwan releases. A malicious (or expired ISAKMP)
99 R_U_THERE or R_U_THERE_ACK Dead Peer Detection packet can cause the
100 pluto IKE daemon to crash and restart. No authentication or encryption
101 is required to trigger this bug. One spoofed UDP packet can cause the
102 pluto IKE daemon to restart and be unresponsive for a few seconds while
103 restarting. This DPD null state vulnerability has been officially
104 registered as CVE-2009-0790 and is fixed by this release.
106 - ASN.1 to time_t conversion caused a time wrap-around for
107 dates after Jan 18 03:14:07 UTC 2038 on 32-bit platforms.
108 As a workaround such dates are set to the maximum representable
109 time, i.e. Jan 19 03:14:07 UTC 2038.
111 - Distinguished Names containing wildcards (*) are not sent in the
118 - Fixed a use-after-free bug in the DPD timeout section of the
119 IKEv1 pluto daemon which sporadically caused a segfault.
121 - Fixed a crash in the IKEv2 charon daemon occuring with
122 mixed RAM-based and SQL-based virtual IP address pools.
124 - Fixed ASN.1 parsing of algorithmIdentifier objects where the
125 parameters field is optional.
127 - Ported nm plugin to NetworkManager 7.1.
133 - Support of the EAP-MSCHAPv2 protocol enabled by the option
134 --enable-eap-mschapv2. Requires the MD4 hash algorithm enabled
135 either by --enable-md4 or --enable-openssl.
137 - Assignment of up to two DNS and up to two WINS servers to peers via
138 the IKEv2 Configuration Payload (CP). The IPv4 or IPv6 nameserver
139 addresses are defined in strongswan.conf.
141 - The strongSwan applet for the Gnome NetworkManager is now built and
142 distributed as a separate tarball under the name NetworkManager-strongswan.
148 - Fixed ESP NULL encryption broken by the refactoring of keymat.c.
149 Also introduced proper initialization and disposal of keying material.
151 - Fixed the missing listing of connection definitions in ipsec statusall
152 broken by an unfortunate local variable overload.
158 - Several performance improvements to handle thousands of tunnels with almost
159 linear upscaling. All relevant data structures have been replaced by faster
160 counterparts with better lookup times.
162 - Better parallelization to run charon on multiple cores. Due to improved
163 ressource locking and other optimizations the daemon can take full
164 advantage of 16 or even more cores.
166 - The load-tester plugin can use a NULL Diffie-Hellman group and simulate
167 unique identities and certificates by signing peer certificates using a CA
170 - The redesigned stroke in-memory IP pool handles leases. The "ipsec leases"
171 command queries assigned leases.
173 - Added support for smartcards in charon by using the ENGINE API provided by
174 OpenSSL, based on patches by Michael Roßberg.
176 - The Padlock plugin supports the hardware RNG found on VIA CPUs to provide a
177 reliable source of randomness.
182 - Flexible configuration of logging subsystem allowing to log to multiple
183 syslog facilities or to files using fine-grained log levels for each target.
185 - Load testing plugin to do stress testing of the IKEv2 daemon against self
186 or another host. Found and fixed issues during tests in the multi-threaded
187 use of the OpenSSL plugin.
189 - Added profiling code to synchronization primitives to find bottlenecks if
190 running on multiple cores. Found and fixed an issue where parts of the
191 Diffie-Hellman calculation acquired an exclusive lock. This greatly improves
192 parallelization to multiple cores.
194 - updown script invocation has been separated into a plugin of its own to
195 further slim down the daemon core.
197 - Separated IKE_SA/CHILD_SA key derivation process into a closed system,
198 allowing future implementations to use a secured environment in e.g. kernel
201 - The kernel interface of charon has been modularized. XFRM NETLINK (default)
202 and PFKEY (--enable-kernel-pfkey) interface plugins for the native IPsec
203 stack of the Linux 2.6 kernel as well as a PFKEY interface for the KLIPS
204 IPsec stack (--enable-kernel-klips) are provided.
206 - Basic Mobile IPv6 support has been introduced, securing Binding Update
207 messages as well as tunneled traffic between Mobile Node and Home Agent.
208 The installpolicy=no option allows peaceful cooperation with a dominant
209 mip6d daemon and the new type=transport_proxy implements the special MIPv6
210 IPsec transport proxy mode where the IKEv2 daemon uses the Care-of-Address
211 but the IPsec SA is set up for the Home Adress.
213 - Implemented migration of Mobile IPv6 connections using the KMADDRESS
214 field contained in XFRM_MSG_MIGRATE messages sent by the mip6d daemon
215 via the Linux 2.6.28 (or appropriately patched) kernel.
221 - IKEv2 charon daemon supports authentication based on raw public keys
222 stored in the SQL database backend. The ipsec listpubkeys command
223 lists the available raw public keys via the stroke interface.
225 - Several MOBIKE improvements: Detect changes in NAT mappings in DPD exchanges,
226 handle events if kernel detects NAT mapping changes in UDP-encapsulated
227 ESP packets (requires kernel patch), reuse old addesses in MOBIKE updates as
228 long as possible and other fixes.
230 - Fixed a bug in addr_in_subnet() which caused insertion of wrong source
231 routes for destination subnets having netwmasks not being a multiple of 8 bits.
232 Thanks go to Wolfgang Steudel, TU Ilmenau for reporting this bug.
238 - Fixed a Denial-of-Service vulnerability where an IKE_SA_INIT message with
239 a KE payload containing zeroes only can cause a crash of the IKEv2 charon
240 daemon due to a NULL pointer returned by the mpz_export() function of the
241 GNU Multiprecision Library (GMP). Thanks go to Mu Dynamics Research Labs
242 for making us aware of this problem.
244 - The new agent plugin provides a private key implementation on top of an
247 - The NetworkManager plugin has been extended to support certificate client
248 authentication using RSA keys loaded from a file or using ssh-agent.
250 - Daemon capability dropping has been ported to libcap and must be enabled
251 explicitly --with-capabilities=libcap. Future version will support the
252 newer libcap2 library.
254 - ipsec listalgs lists the IKEv2 cryptografic algorithms registered with the
255 charon keying daemon.
261 - A NetworkManager plugin allows GUI-based configuration of road-warrior
262 clients in a simple way. It features X509 based gateway authentication
263 and EAP client authentication, tunnel setup/teardown and storing passwords
264 in the Gnome Keyring.
266 - A new EAP-GTC plugin implements draft-sheffer-ikev2-gtc-00.txt and allows
267 username/password authentication against any PAM service on the gateway.
268 The new EAP method interacts nicely with the NetworkManager plugin and allows
269 client authentication against e.g. LDAP.
271 - Improved support for the EAP-Identity method. The new ipsec.conf eap_identity
272 parameter defines an additional identity to pass to the server in EAP
275 - The "ipsec statusall" command now lists CA restrictions, EAP
276 authentication types and EAP identities.
278 - Fixed two multithreading deadlocks occurring when starting up
279 several hundred tunnels concurrently.
281 - Fixed the --enable-integrity-test configure option which
282 computes a SHA-1 checksum over the libstrongswan library.
288 - Consistent logging of IKE and CHILD SAs at the audit (AUD) level.
290 - Improved the performance of the SQL-based virtual IP address pool
291 by introducing an additional addresses table. The leases table
292 storing only history information has become optional and can be
293 disabled by setting charon.plugins.sql.lease_history = no in
296 - The XFRM_STATE_AF_UNSPEC flag added to xfrm.h allows IPv4-over-IPv6
297 and IPv6-over-IPv4 tunnels with the 2.6.26 and later Linux kernels.
299 - management of different virtual IP pools for different
300 network interfaces have become possible.
302 - fixed a bug which prevented the assignment of more than 256
303 virtual IP addresses from a pool managed by an sql database.
305 - fixed a bug which did not delete own IPCOMP SAs in the kernel.
311 - Added statistics functions to ipsec pool --status and ipsec pool --leases
312 and input validation checks to various ipsec pool commands.
314 - ipsec statusall now lists all loaded charon plugins and displays
315 the negotiated IKEv2 cipher suite proposals.
317 - The openssl plugin supports the elliptic curve Diffie-Hellman groups
318 19, 20, 21, 25, and 26.
320 - The openssl plugin supports ECDSA authentication using elliptic curve
323 - Fixed a bug in stroke which caused multiple charon threads to close
324 the file descriptors during packet transfers over the stroke socket.
326 - ESP sequence numbers are now migrated in IPsec SA updates handled by
327 MOBIKE. Works only with Linux kernels >= 2.6.17.
333 - Fixed the strongswan.conf path configuration problem that occurred when
334 --sysconfig was not set explicitly in ./configure.
336 - Fixed a number of minor bugs that where discovered during the 4th
337 IKEv2 interoperability workshop in San Antonio, TX.
343 - Plugins for libstrongswan and charon can optionally be loaded according
344 to a configuration in strongswan.conf. Most components provide a
345 "load = " option followed by a space separated list of plugins to load.
346 This allows e.g. the fallback from a hardware crypto accelerator to
347 to software-based crypto plugins.
349 - Charons SQL plugin has been extended by a virtual IP address pool.
350 Configurations with a rightsourceip=%poolname setting query a SQLite or
351 MySQL database for leases. The "ipsec pool" command helps in administrating
352 the pool database. See ipsec pool --help for the available options
354 - The Authenticated Encryption Algorithms AES-CCM-8/12/16 and AES-GCM-8/12/16
355 for ESP are now supported starting with the Linux 2.6.25 kernel. The
356 syntax is e.g. esp=aes128ccm12 or esp=aes256gcm16.
362 - Support for "Hash and URL" encoded certificate payloads has been implemented
363 in the IKEv2 daemon charon. Using the "certuribase" option of a CA section
364 allows to assign a base URL to all certificates issued by the specified CA.
365 The final URL is then built by concatenating that base and the hex encoded
366 SHA1 hash of the DER encoded certificate. Note that this feature is disabled
367 by default and must be enabled using the option "charon.hash_and_url".
369 - The IKEv2 daemon charon now supports the "uniqueids" option to close multiple
370 IKE_SAs with the same peer. The option value "keep" prefers existing
371 connection setups over new ones, where the value "replace" replaces existing
374 - The crypto factory in libstrongswan additionaly supports random number
375 generators, plugins may provide other sources of randomness. The default
376 plugin reads raw random data from /dev/(u)random.
378 - Extended the credential framework by a caching option to allow plugins
379 persistent caching of fetched credentials. The "cachecrl" option has been
382 - The new trustchain verification introduced in 4.2.0 has been parallelized.
383 Threads fetching CRL or OCSP information no longer block other threads.
385 - A new IKEv2 configuration attribute framework has been introduced allowing
386 plugins to provide virtual IP addresses, and in the future, other
387 configuration attribute services (e.g. DNS/WINS servers).
389 - The stroke plugin has been extended to provide virtual IP addresses from
390 a pool defined in ipsec.conf. The "rightsourceip" parameter now accepts
391 address pools in CIDR notation (e.g. 10.1.1.0/24). The parameter also accepts
392 the value "%poolname", where "poolname" identifies a pool provided by a
395 - Fixed compilation on uClibc and a couple of other minor bugs.
397 - Set DPD defaults in ipsec starter to dpd_delay=30s and dpd_timeout=150s.
399 - The IKEv1 pluto daemon now supports the ESP encryption algorithm CAMELLIA
400 with key lengths of 128, 192, and 256 bits, as well as the authentication
401 algorithm AES_XCBC_MAC. Configuration example: esp=camellia192-aesxcbc.
407 - libstrongswan has been modularized to attach crypto algorithms,
408 credential implementations (keys, certificates) and fetchers dynamically
409 through plugins. Existing code has been ported to plugins:
410 - RSA/Diffie-Hellman implementation using the GNU Multi Precision library
411 - X509 certificate system supporting CRLs, OCSP and attribute certificates
412 - Multiple plugins providing crypto algorithms in software
413 - CURL and OpenLDAP fetcher
415 - libstrongswan gained a relational database API which uses pluggable database
416 providers. Plugins for MySQL and SQLite are available.
418 - The IKEv2 keying daemon charon is more extensible. Generic plugins may provide
419 connection configuration, credentials and EAP methods or control the daemon.
420 Existing code has been ported to plugins:
421 - EAP-AKA, EAP-SIM, EAP-MD5 and EAP-Identity
422 - stroke configuration, credential and control (compatible to pluto)
423 - XML bases management protocol to control and query the daemon
424 The following new plugins are available:
425 - An experimental SQL configuration, credential and logging plugin on
426 top of either MySQL or SQLite
427 - A unit testing plugin to run tests at daemon startup
429 - The authentication and credential framework in charon has been heavily
430 refactored to support modular credential providers, proper
431 CERTREQ/CERT payload exchanges and extensible authorization rules.
433 - The framework of strongSwan Manager has envolved to the web application
434 framework libfast (FastCGI Application Server w/ Templates) and is usable
435 by other applications.
441 - IKE rekeying in NAT situations did not inherit the NAT conditions
442 to the rekeyed IKE_SA so that the UDP encapsulation was lost with
443 the next CHILD_SA rekeying.
445 - Wrong type definition of the next_payload variable in id_payload.c
446 caused an INVALID_SYNTAX error on PowerPC platforms.
448 - Implemented IKEv2 EAP-SIM server and client test modules that use
449 triplets stored in a file. For details on the configuration see
450 the scenario 'ikev2/rw-eap-sim-rsa'.
456 - Fixed error in the ordering of the certinfo_t records in the ocsp cache that
457 caused multiple entries of the same serial number to be created.
459 - Implementation of a simple EAP-MD5 module which provides CHAP
460 authentication. This may be interesting in conjunction with certificate
461 based server authentication, as weak passwords can't be brute forced
462 (in contradiction to traditional IKEv2 PSK).
464 - A complete software based implementation of EAP-AKA, using algorithms
465 specified in 3GPP2 (S.S0055). This implementation does not use an USIM,
466 but reads the secrets from ipsec.secrets. Make sure to read eap_aka.h
469 - Support for vendor specific EAP methods using Expanded EAP types. The
470 interface to EAP modules has been slightly changed, so make sure to
471 check the changes if you're already rolling your own modules.
477 - The default _updown script now dynamically inserts and removes ip6tables
478 firewall rules if leftfirewall=yes is set in IPv6 connections. New IPv6
479 net-net and roadwarrior (PSK/RSA) scenarios for both IKEv1 and IKEV2 were
482 - Implemented RFC4478 repeated authentication to force EAP/Virtual-IP clients
483 to reestablish an IKE_SA within a given timeframe.
485 - strongSwan Manager supports configuration listing, initiation and termination
486 of IKE and CHILD_SAs.
488 - Fixes and improvements to multithreading code.
490 - IKEv2 plugins have been renamed to libcharon-* to avoid naming conflicts.
491 Make sure to remove the old plugins in $libexecdir/ipsec, otherwise they get
498 - Removed recursive pthread mutexes since uClibc doesn't support them.
504 - In NAT traversal situations and multiple queued Quick Modes,
505 those pending connections inserted by auto=start after the
506 port floating from 500 to 4500 were erronously deleted.
508 - Added a "forceencaps" connection parameter to enforce UDP encapsulation
509 to surmount restrictive firewalls. NAT detection payloads are faked to
510 simulate a NAT situation and trick the other peer into NAT mode (IKEv2 only).
512 - Preview of strongSwan Manager, a web based configuration and monitoring
513 application. It uses a new XML control interface to query the IKEv2 daemon
514 (see http://trac.strongswan.org/wiki/Manager).
516 - Experimental SQLite configuration backend which will provide the configuration
517 interface for strongSwan Manager in future releases.
519 - Further improvements to MOBIKE support.
525 - Since some third party IKEv2 implementations run into
526 problems with strongSwan announcing MOBIKE capability per
527 default, MOBIKE can be disabled on a per-connection-basis
528 using the mobike=no option. Whereas mobike=no disables the
529 sending of the MOBIKE_SUPPORTED notification and the floating
530 to UDP port 4500 with the IKE_AUTH request even if no NAT
531 situation has been detected, strongSwan will still support
532 MOBIKE acting as a responder.
534 - the default ipsec routing table plus its corresponding priority
535 used for inserting source routes has been changed from 100 to 220.
536 It can be configured using the --with-ipsec-routing-table and
537 --with-ipsec-routing-table-prio options.
539 - the --enable-integrity-test configure option tests the
540 integrity of the libstrongswan crypto code during the charon
543 - the --disable-xauth-vid configure option disables the sending
544 of the XAUTH vendor ID. This can be used as a workaround when
545 interoperating with some Windows VPN clients that get into
546 trouble upon reception of an XAUTH VID without eXtended
547 AUTHentication having been configured.
549 - ipsec stroke now supports the rereadsecrets, rereadaacerts,
550 rereadacerts, and listacerts options.
556 - If a DNS lookup failure occurs when resolving right=%<FQDN>
557 or right=<FQDN> combined with rightallowany=yes then the
558 connection is not updated by ipsec starter thus preventing
559 the disruption of an active IPsec connection. Only if the DNS
560 lookup successfully returns with a changed IP address the
561 corresponding connection definition is updated.
563 - Routes installed by the keying daemons are now in a separate
564 routing table with the ID 100 to avoid conflicts with the main
565 table. Route lookup for IKEv2 traffic is done in userspace to ignore
566 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
572 - The pluto IKEv1 daemon now exhibits the same behaviour as its
573 IKEv2 companion charon by inserting an explicit route via the
574 _updown script only if a sourceip exists. This is admissible
575 since routing through the IPsec tunnel is handled automatically
576 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
577 parameter is not required any more.
579 - The new IKEv1 parameter right|leftallowany parameters helps to handle
580 the case where both peers possess dynamic IP addresses that are
581 usually resolved using DynDNS or a similar service. The configuration
586 can be used by the initiator to start up a connection to a peer
587 by resolving peer.foo.bar into the currently allocated IP address.
588 Thanks to the rightallowany flag the connection behaves later on
593 so that the peer can rekey the connection as an initiator when his
594 IP address changes. An alternative notation is
598 which will implicitly set rightallowany=yes.
600 - ipsec starter now fails more gracefully in the presence of parsing
601 errors. Flawed ca and conn section are discarded and pluto is started
602 if non-fatal errors only were encountered. If right=%peer.foo.bar
603 cannot be resolved by DNS then right=%any will be used so that passive
604 connections as a responder are still possible.
606 - The new pkcs11initargs parameter that can be placed in the
607 setup config section of /etc/ipsec.conf allows the definition
608 of an argument string that is used with the PKCS#11 C_Initialize()
609 function. This non-standard feature is required by the NSS softoken
610 library. This patch was contributed by Robert Varga.
612 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
613 which caused a segmentation fault in the presence of unknown
614 or misspelt keywords in ipsec.conf. This bug fix was contributed
617 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
618 address configuration changes and updates IKE and IPsec SAs dynamically.
624 - IKEv2 peer configuration selection now can be based on a given
625 certification authority using the rightca= statement.
627 - IKEv2 authentication based on RSA signatures now can handle multiple
628 certificates issued for a given peer ID. This allows a smooth transition
629 in the case of a peer certificate renewal.
631 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
632 client and returning requested virtual IPs using rightsourceip=%config
633 on the server. If the server does not support configuration payloads, the
634 client enforces its leftsourceip parameter.
636 - The ./configure options --with-uid/--with-gid allow pluto and charon
637 to drop their privileges to a minimum and change to an other UID/GID. This
638 improves the systems security, as a possible intruder may only get the
639 CAP_NET_ADMIN capability.
641 - Further modularization of charon: Pluggable control interface and
642 configuration backend modules provide extensibility. The control interface
643 for stroke is included, and further interfaces using DBUS (NetworkManager)
644 or XML are on the way. A backend for storing configurations in the daemon
645 is provided and more advanced backends (using e.g. a database) are trivial
648 - Fixed a compilation failure in libfreeswan occuring with Linux kernel
655 - Support for an additional Diffie-Hellman exchange when creating/rekeying
656 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
657 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
658 is implemented properly for rekeying.
660 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
661 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
663 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
665 - Added support for EAP modules which do not establish an MSK.
667 - Removed the dependencies from the /usr/include/linux/ headers by
668 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
670 - crlNumber is now listed by ipsec listcrls
672 - The xauth_modules.verify_secret() function now passes the
679 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
680 cookies are enabled and protect against DoS attacks with faked source
681 addresses. Number of IKE_SAs in CONNECTING state is also limited per
682 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
683 compared to properly detect retransmissions and incoming retransmits are
684 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
686 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
687 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
688 enabled by cachecrls=yes.
690 - Added the configuration options --enable-nat-transport which enables
691 the potentially insecure NAT traversal for IPsec transport mode and
692 --disable-vendor-id which disables the sending of the strongSwan
695 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
696 a segmentation fault if a malformed payload was detected in the
697 IKE MR2 message and pluto tried to send an encrypted notification
700 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
701 with Windows 2003 Server which uses a wrong VID hash.
707 - Support of SHA2_384 hash function for protecting IKEv1
708 negotiations and support of SHA2 signatures in X.509 certificates.
710 - Fixed a serious bug in the computation of the SHA2-512 HMAC
711 function. Introduced automatic self-test of all IKEv1 hash
712 and hmac functions during pluto startup. Failure of a self-test
713 currently issues a warning only but does not exit pluto [yet].
715 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
717 - Full support of CA information sections. ipsec listcainfos
718 now shows all collected crlDistributionPoints and OCSP
721 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
722 This feature requires the HTTP fetching capabilities of the libcurl
723 library which must be enabled by setting the --enable-http configure
726 - Refactored core of the IKEv2 message processing code, allowing better
727 code reuse and separation.
729 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
730 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
731 by the requestor and installed in a resolv.conf file.
733 - The IKEv2 daemon charon installs a route for each IPsec policy to use
734 the correct source address even if an application does not explicitly
737 - Integrated the EAP framework into charon which loads pluggable EAP library
738 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
739 on the client side, while the "eap" parameter on the server side defines
740 the EAP method to use for client authentication.
741 A generic client side EAP-Identity module and an EAP-SIM authentication
742 module using a third party card reader implementation are included.
744 - Added client side support for cookies.
746 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
747 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
748 fixes to enhance interoperability with other implementations.
754 - strongSwan now interoperates with the NCP Secure Entry Client,
755 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
756 XAUTH and Mode Config.
758 - UNITY attributes are now recognized and UNITY_BANNER is set
765 - IKEv1: Support for extended authentication (XAUTH) in combination
766 with ISAKMP Main Mode RSA or PSK authentication. Both client and
767 server side were implemented. Handling of user credentials can
768 be done by a run-time loadable XAUTH module. By default user
769 credentials are stored in ipsec.secrets.
771 - IKEv2: Support for reauthentication when rekeying
773 - IKEv2: Support for transport mode
775 - fixed a lot of bugs related to byte order
777 - various other bugfixes
783 - IKEv1: Implementation of ModeConfig push mode via the new connection
784 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
786 - IKEv1: The command ipsec statusall now shows "DPD active" for all
787 ISAKMP SAs that are under active Dead Peer Detection control.
789 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
790 Instead of logger, special printf() functions are used to directly
791 print objects like hosts (%H) identifications (%D), certificates (%Q),
792 etc. The number of debugging levels have been reduced to:
794 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
796 The debugging levels can either be specified statically in ipsec.conf as
799 charondebug="lib 1, cfg 3, net 2"
801 or changed at runtime via stroke as
803 ipsec stroke loglevel cfg 2
809 - Implemented full support for IPv6-in-IPv6 tunnels.
811 - Added configuration options for dead peer detection in IKEv2. dpd_action
812 types "clear", "hold" and "restart" are supported. The dpd_timeout
813 value is not used, as the normal retransmission policy applies to
814 detect dead peers. The dpd_delay parameter enables sending of empty
815 informational message to detect dead peers in case of inactivity.
817 - Added support for preshared keys in IKEv2. PSK keys configured in
818 ipsec.secrets are loaded. The authby parameter specifies the authentication
819 method to authentificate ourself, the other peer may use PSK or RSA.
821 - Changed retransmission policy to respect the keyingtries parameter.
823 - Added private key decryption. PEM keys encrypted with AES-128/192/256
824 or 3DES are supported.
826 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
829 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
830 signed with such a hash algorithm.
832 - Added initial support for updown scripts. The actions up-host/client and
833 down-host/client are executed. The leftfirewall=yes parameter
834 uses the default updown script to insert dynamic firewall rules, a custom
835 updown script may be specified with the leftupdown parameter.
841 - Added support for the auto=route ipsec.conf parameter and the
842 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
843 CHILD_SAs dynamically on demand when traffic is detected by the
846 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
847 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
848 new keys are generated using perfect forward secrecy. An optional flag
849 which enforces reauthentication will be implemented later.
851 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
852 algorithm configuration statements.
858 - Full X.509 certificate trust chain verification has been implemented.
859 End entity certificates can be exchanged via CERT payloads. The current
860 default is leftsendcert=always, since CERTREQ payloads are not supported
861 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
863 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
864 would offer more possibilities for traffic selection, but the Linux kernel
865 currently does not support it. That's why we stick with these simple
866 ipsec.conf rules for now.
868 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
869 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
872 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
873 notify payloads to detect NAT routers between the peers. It switches
874 to port 4500, uses UDP encapsulated ESP packets, handles peer address
875 changes gracefully and sends keep alive message periodically.
877 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
878 rekeying, more shared code, cleaner design, proper retransmission
879 and a more extensible code base.
881 - The mixed PSK/RSA roadwarrior detection capability introduced by the
882 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
883 payloads by the responder right before any defined IKE Main Mode state had
884 been established. Although any form of bad proposal syntax was being correctly
885 detected by the payload parser, the subsequent error handler didn't check
886 the state pointer before logging current state information, causing an
887 immediate crash of the pluto keying daemon due to a NULL pointer.
893 - Added algorithm selection to charon: New default algorithms for
894 ike=aes128-sha-modp2048, as both daemons support it. The default
895 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
896 the ike/esp parameter the same way as pluto. As this syntax does
897 not allow specification of a pseudo random function, the same
898 algorithm as for integrity is used (currently sha/md5). Supported
900 Encryption: aes128, aes192, aes256
901 Integrity/PRF: md5, sha (using hmac)
902 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
904 Encryption: aes128, aes192, aes256, 3des, blowfish128,
905 blowfish192, blowfish256
907 More IKE encryption algorithms will come after porting libcrypto into
910 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
911 perfect forward secrecy is used. The rekeying parameters rekey,
912 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
913 when using IKEv2. WARNING: charon currently is unable to handle
914 simultaneous rekeying. To avoid such a situation, use a large
915 rekeyfuzz, or even better, set rekey=no on one peer.
917 - support for host2host, net2net, host2net (roadwarrior) tunnels
918 using predefined RSA certificates (see uml scenarios for
919 configuration examples).
921 - new build environment featuring autotools. Features such
922 as HTTP, LDAP and smartcard support may be enabled using
923 the ./configure script. Changing install directories
924 is possible, too. See ./configure --help for more details.
926 - better integration of charon with ipsec starter, which allows
927 (almost) transparent operation with both daemons. charon
928 handles ipsec commands up, down, status, statusall, listall,
929 listcerts and allows proper load, reload and delete of connections
936 - initial support of the IKEv2 protocol. Connections in
937 ipsec.conf designated by keyexchange=ikev2 are negotiated
938 by the new IKEv2 charon keying daemon whereas those marked
939 by keyexchange=ikev1 or the default keyexchange=ike are
940 handled thy the IKEv1 pluto keying daemon. Currently only
941 a limited subset of functions are available with IKEv2
942 (Default AES encryption, authentication based on locally
943 imported X.509 certificates, unencrypted private RSA keys
944 in PKCS#1 file format, limited functionality of the ipsec
951 - the dynamic iptables rules from the _updown_x509 template
952 for KLIPS and the _updown_policy template for NETKEY have
953 been merged into the default _updown script. The existing
954 left|rightfirewall keyword causes the automatic insertion
955 and deletion of ACCEPT rules for tunneled traffic upon
956 the successful setup and teardown of an IPsec SA, respectively.
957 left|rightfirwall can be used with KLIPS under any Linux 2.4
958 kernel or with NETKEY under a Linux kernel version >= 2.6.16
959 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
960 kernel version < 2.6.16 which does not support IPsec policy
961 matching yet, please continue to use a copy of the _updown_espmark
962 template loaded via the left|rightupdown keyword.
964 - a new left|righthostaccess keyword has been introduced which
965 can be used in conjunction with left|rightfirewall and the
966 default _updown script. By default leftfirewall=yes inserts
967 a bi-directional iptables FORWARD rule for a local client network
968 with a netmask different from 255.255.255.255 (single host).
969 This does not allow to access the VPN gateway host via its
970 internal network interface which is part of the client subnet
971 because an iptables INPUT and OUTPUT rule would be required.
972 lefthostaccess=yes will cause this additional ACCEPT rules to
975 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
976 payload is preparsed in order to find out whether the roadwarrior
977 requests PSK or RSA so that a matching connection candidate can
984 - the new _updown_policy template allows ipsec policy based
985 iptables firewall rules. Required are iptables version
986 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
987 the _updown_espmark template, so that no INPUT mangle rules
988 are required any more.
990 - added support of DPD restart mode
992 - ipsec starter now allows the use of wildcards in include
993 statements as e.g. in "include /etc/my_ipsec/*.conf".
994 Patch courtesy of Matthias Haas.
996 - the Netscape OID 'employeeNumber' is now recognized and can be
997 used as a Relative Distinguished Name in certificates.
1003 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
1004 command and not of ipsec setup any more.
1006 - ipsec starter now supports AH authentication in conjunction with
1007 ESP encryption. AH authentication is configured in ipsec.conf
1008 via the auth=ah parameter.
1010 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
1011 ipsec whack --scencrypt|scdecrypt <args>.
1013 - get_sa_info() now determines for the native netkey IPsec stack
1014 the exact time of the last use of an active eroute. This information
1015 is used by the Dead Peer Detection algorithm and is also displayed by
1016 the ipsec status command.
1022 - running under the native Linux 2.6 IPsec stack, the function
1023 get_sa_info() is called by ipsec auto --status to display the current
1024 number of transmitted bytes per IPsec SA.
1026 - get_sa_info() is also used by the Dead Peer Detection process to detect
1027 recent ESP activity. If ESP traffic was received from the peer within
1028 the last dpd_delay interval then no R_Y_THERE notification must be sent.
1030 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
1031 in ID_DER_ASN1_DN identities. The following notations are possible:
1033 rightid="unstructuredName=John Doe"
1034 rightid="UN=John Doe"
1036 - fixed a long-standing bug which caused PSK-based roadwarrior connections
1037 to segfault in the function id.c:same_id() called by keys.c:get_secret()
1038 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
1045 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
1047 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
1049 - in order to guarantee backwards-compatibility with the script-based
1050 auto function (e.g. auto --replace), the ipsec starter scripts stores
1051 the defaultroute information in the temporary file /var/run/ipsec.info.
1053 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
1054 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
1057 - the ipsec starter now also recognizes the parameters authby=never and
1058 type=passthrough|pass|drop|reject.
1064 - ipsec starter now supports the also parameter which allows
1065 a modular structure of the connection definitions. Thus
1066 "ipsec start" is now ready to replace "ipsec setup".
1072 - Mathieu Lafon's popular ipsec starter tool has been added to the
1073 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
1074 for his integration work. ipsec starter is a C program which is going
1075 to replace the various shell and awk starter scripts (setup, _plutoload,
1076 _plutostart, _realsetup, _startklips, _confread, and auto). Since
1077 ipsec.conf is now parsed only once, the starting of multiple tunnels is
1078 accelerated tremedously.
1080 - Added support of %defaultroute to the ipsec starter. If the IP address
1081 changes, a HUP signal to the ipsec starter will automatically
1082 reload pluto's connections.
1084 - moved most compile time configurations from pluto/Makefile to
1085 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
1086 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
1088 - removed the ipsec verify and ipsec newhostkey commands
1090 - fixed some 64-bit issues in formatted print statements
1092 - The scepclient functionality implementing the Simple Certificate
1093 Enrollment Protocol (SCEP) is nearly complete but hasn't been
1100 - CA certicates are now automatically loaded from a smartcard
1101 or USB crypto token and appear in the ipsec auto --listcacerts
1108 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
1109 library that does not support the C_Encrypt() Cryptoki
1110 function (e.g. OpenSC), the RSA encryption is done in
1111 software using the public key fetched from the smartcard.
1113 - The scepclient function now allows to define the
1114 validity of a self-signed certificate using the --days,
1115 --startdate, and --enddate options. The default validity
1116 has been changed from one year to five years.
1122 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
1123 interface to other applications for RSA encryption and decryption
1124 via the whack interface. Notation:
1126 ipsec whack --scencrypt <data>
1127 [--inbase 16|hex|64|base64|256|text|ascii]
1128 [--outbase 16|hex|64|base64|256|text|ascii]
1131 ipsec whack --scdecrypt <data>
1132 [--inbase 16|hex|64|base64|256|text|ascii]
1133 [--outbase 16|hex|64|base64|256|text|ascii]
1136 The default setting for inbase and outbase is hex.
1138 The new proxy interface can be used for securing symmetric
1139 encryption keys required by the cryptoloop or dm-crypt
1140 disk encryption schemes, especially in the case when
1141 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
1144 - if the file /etc/ipsec.secrets is lacking during the startup of
1145 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
1146 containing a 2048 bit RSA private key and a matching self-signed
1147 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
1148 is automatically generated by calling the function
1150 ipsec scepclient --out pkcs1 --out cert-self
1152 scepclient was written by Jan Hutter and Martin Willi, students
1153 at the University of Applied Sciences in Rapperswil, Switzerland.
1159 - the current extension of the PKCS#7 framework introduced
1160 a parsing error in PKCS#7 wrapped X.509 certificates that are
1161 e.g. transmitted by Windows XP when multi-level CAs are used.
1162 the parsing syntax has been fixed.
1164 - added a patch by Gerald Richter which tolerates multiple occurrences
1165 of the ipsec0 interface when using KLIPS.
1171 - with gawk-3.1.4 the word "default2 has become a protected
1172 keyword for use in switch statements and cannot be used any
1173 more in the strongSwan scripts. This problem has been
1174 solved by renaming "default" to "defaults" and "setdefault"
1175 in the scripts _confread and auto, respectively.
1177 - introduced the parameter leftsendcert with the values
1179 always|yes (the default, always send a cert)
1180 ifasked (send the cert only upon a cert request)
1181 never|no (never send a cert, used for raw RSA keys and
1184 - fixed the initialization of the ESP key length to a default of
1185 128 bits in the case that the peer does not send a key length
1186 attribute for AES encryption.
1188 - applied Herbert Xu's uniqueIDs patch
1190 - applied Herbert Xu's CLOEXEC patches
1196 - CRLs can now be cached also in the case when the issuer's
1197 certificate does not contain a subjectKeyIdentifier field.
1198 In that case the subjectKeyIdentifier is computed by pluto as the
1199 160 bit SHA-1 hash of the issuer's public key in compliance
1200 with section 4.2.1.2 of RFC 3280.
1202 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
1203 not only multiple Quick Modes of a given connection but also
1204 multiple connections between two security gateways.
1210 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
1211 installed either by setting auto=route in ipsec.conf or by
1212 a connection put into hold, generates an XFRM_AQUIRE event
1213 for each packet that wants to use the not-yet exisiting
1214 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
1215 the Quick Mode queue, causing multiple IPsec SA to be
1216 established in rapid succession. Starting with strongswan-2.5.1
1217 only a single IPsec SA is established per host-pair connection.
1219 - Right after loading the PKCS#11 module, all smartcard slots are
1220 searched for certificates. The result can be viewed using
1223 ipsec auto --listcards
1225 The certificate objects found in the slots are numbered
1226 starting with #1, #2, etc. This position number can be used to address
1227 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
1228 in ipsec.conf and ipsec.secrets, respectively:
1230 %smartcard (selects object #1)
1231 %smartcard#1 (selects object #1)
1232 %smartcard#3 (selects object #3)
1234 As an alternative the existing retrieval scheme can be used:
1236 %smartcard:45 (selects object with id=45)
1237 %smartcard0 (selects first object in slot 0)
1238 %smartcard4:45 (selects object in slot 4 with id=45)
1240 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
1241 private key flags either C_Sign() or C_Decrypt() is used
1242 to generate a signature.
1244 - The output buffer length parameter siglen in C_Sign()
1245 is now initialized to the actual size of the output
1246 buffer prior to the function call. This fixes the
1247 CKR_BUFFER_TOO_SMALL error that could occur when using
1248 the OpenSC PKCS#11 module.
1250 - Changed the initialization of the PKCS#11 CK_MECHANISM in
1251 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
1253 - Refactored the RSA public/private key code and transferred it
1254 from keys.c to the new pkcs1.c file as a preparatory step
1255 towards the release of the SCEP client.
1261 - The loading of a PKCS#11 smartcard library module during
1262 runtime does not require OpenSC library functions any more
1263 because the corresponding code has been integrated into
1264 smartcard.c. Also the RSAREF pkcs11 header files have been
1265 included in a newly created pluto/rsaref directory so that
1266 no external include path has to be defined any longer.
1268 - A long-awaited feature has been implemented at last:
1269 The local caching of CRLs fetched via HTTP or LDAP, activated
1270 by the parameter cachecrls=yes in the config setup section
1271 of ipsec.conf. The dynamically fetched CRLs are stored under
1272 a unique file name containing the issuer's subjectKeyID
1273 in /etc/ipsec.d/crls.
1275 - Applied a one-line patch courtesy of Michael Richardson
1276 from the Openswan project which fixes the kernel-oops
1277 in KLIPS when an snmp daemon is running on the same box.
1283 - Eliminated null length CRL distribution point strings.
1285 - Fixed a trust path evaluation bug introduced with 2.4.3
1291 - Improved the joint OCSP / CRL revocation policy.
1292 OCSP responses have precedence over CRL entries.
1294 - Introduced support of CRLv2 reason codes.
1296 - Fixed a bug with key-pad equipped readers which caused
1297 pluto to prompt for the pin via the console when the first
1298 occasion to enter the pin via the key-pad was missed.
1300 - When pluto is built with LDAP_V3 enabled, the library
1301 liblber required by newer versions of openldap is now
1308 - Added the _updown_espmark template which requires all
1309 incoming ESP traffic to be marked with a default mark
1312 - Introduced the pkcs11keepstate parameter in the config setup
1313 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
1314 session and login states are kept as long as possible during
1315 the lifetime of pluto. This means that a PIN entry via a key
1316 pad has to be done only once.
1318 - Introduced the pkcs11module parameter in the config setup
1319 section of ipsec.conf which specifies the PKCS#11 module
1320 to be used with smart cards. Example:
1322 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
1324 - Added support of smartcard readers equipped with a PIN pad.
1326 - Added patch by Jay Pfeifer which detects when netkey
1327 modules have been statically built into the Linux 2.6 kernel.
1329 - Added two patches by Herbert Xu. The first uses ip xfrm
1330 instead of setkey to flush the IPsec policy database. The
1331 second sets the optional flag in inbound IPComp SAs only.
1333 - Applied Ulrich Weber's patch which fixes an interoperability
1334 problem between native IPsec and KLIPS systems caused by
1335 setting the replay window to 32 instead of 0 for ipcomp.
1341 - Fixed a bug which caused an unwanted Mode Config request
1342 to be initiated in the case where "right" was used to denote
1343 the local side in ipsec.conf and "left" the remote side,
1344 contrary to the recommendation that "right" be remote and
1351 - updated Vendor ID to strongSwan-2.4.0
1353 - updated copyright statement to include David Buechi and
1360 - strongSwan now communicates with attached smartcards and
1361 USB crypto tokens via the standardized PKCS #11 interface.
1362 By default the OpenSC library from www.opensc.org is used
1363 but any other PKCS#11 library could be dynamically linked.
1364 strongSwan's PKCS#11 API was implemented by David Buechi
1365 and Michael Meier, both graduates of the Zurich University
1366 of Applied Sciences in Winterthur, Switzerland.
1368 - When a %trap eroute is triggered by an outgoing IP packet
1369 then the native IPsec stack of the Linux 2.6 kernel [often/
1370 always?] returns an XFRM_ACQUIRE message with an undefined
1371 protocol family field and the connection setup fails.
1372 As a workaround IPv4 (AF_INET) is now assumed.
1374 - the results of the UML test scenarios are now enhanced
1375 with block diagrams of the virtual network topology used
1376 in a particular test.
1382 - fixed IV used to decrypt informational messages.
1383 This bug was introduced with Mode Config functionality.
1385 - fixed NCP Vendor ID.
1387 - undid one of Ulrich Weber's maximum udp size patches
1388 because it caused a segmentation fault with NAT-ed
1391 - added UML scenarios wildcards and attr-cert which
1392 demonstrate the implementation of IPsec policies based
1393 on wildcard parameters contained in Distinguished Names and
1394 on X.509 attribute certificates, respectively.
1400 - Added basic Mode Config functionality
1402 - Added Mathieu Lafon's patch which upgrades the status of
1403 the NAT-Traversal implementation to RFC 3947.
1405 - The _startklips script now also loads the xfrm4_tunnel
1408 - Added Ulrich Weber's netlink replay window size and
1409 maximum udp size patches.
1411 - UML testing now uses the Linux 2.6.10 UML kernel by default.
1417 - Eric Marchionni and Patrik Rayo, both recent graduates from
1418 the Zuercher Hochschule Winterthur in Switzerland, created a
1419 User-Mode-Linux test setup for strongSwan. For more details
1420 please read the INSTALL and README documents in the testing
1423 - Full support of group attributes based on X.509 attribute
1424 certificates. Attribute certificates can be generated
1425 using the openac facility. For more details see
1429 The group attributes can be used in connection definitions
1430 in order to give IPsec access to specific user groups.
1431 This is done with the new parameter left|rightgroups as in
1433 rightgroups="Research, Sales"
1435 giving access to users possessing the group attributes
1436 Research or Sales, only.
1438 - In Quick Mode clients with subnet mask /32 are now
1439 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
1440 fix rekeying problems with the SafeNet/SoftRemote and NCP
1441 Secure Entry Clients.
1443 - Changed the defaults of the ikelifetime and keylife parameters
1444 to 3h and 1h, respectively. The maximum allowable values are
1445 now both set to 24 h.
1447 - Suppressed notification wars between two IPsec peers that
1448 could e.g. be triggered by incorrect ISAKMP encryption.
1450 - Public RSA keys can now have identical IDs if either the
1451 issuing CA or the serial number is different. The serial
1452 number of a certificate is now shown by the command
1454 ipsec auto --listpubkeys
1460 - Added Tuomo Soini's sourceip feature which allows a strongSwan
1461 roadwarrior to use a fixed Virtual IP (see README section 2.6)
1462 and reduces the well-known four tunnel case on VPN gateways to
1463 a single tunnel definition (see README section 2.4).
1465 - Fixed a bug occuring with NAT-Traversal enabled when the responder
1466 suddenly turns initiator and the initiator cannot find a matching
1467 connection because of the floated IKE port 4500.
1469 - Removed misleading ipsec verify command from barf.
1471 - Running under the native IP stack, ipsec --version now shows
1472 the Linux kernel version (courtesy to the Openswan project).
1478 - Introduced the ipsec auto --listalgs monitoring command which lists
1479 all currently registered IKE and ESP algorithms.
1481 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
1482 is set and the first proposed transform does not match.
1484 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
1485 occuring when a smartcard is present.
1487 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
1489 - Fixed the printing of the notification names (null)
1491 - Applied another of Herbert Xu's Netlink patches.
1497 - Support of Dead Peer Detection. The connection parameter
1499 dpdaction=clear|hold
1501 activates DPD for the given connection.
1503 - The default Opportunistic Encryption (OE) policy groups are not
1504 automatically included anymore. Those wishing to activate OE can include
1505 the policy group with the following statement in ipsec.conf:
1507 include /etc/ipsec.d/examples/oe.conf
1509 The default for [right|left]rsasigkey is now set to %cert.
1511 - strongSwan now has a Vendor ID of its own which can be activated
1512 using the compile option VENDORID
1514 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
1516 - Applied Herbert Xu's patch fixing an ESPINUDP problem
1518 - Applied Herbert Xu's patch setting source/destination port numbers.
1520 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
1521 lost during the migration from SuperFreeS/WAN.
1523 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
1525 - Fixed the unsharing of alg parameters when instantiating group
1532 - Thomas Walpuski made me aware of a potential DoS attack via
1533 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
1534 certificates in Pluto's authority certificate store. This vulnerability
1535 was fixed by establishing trust in CA candidate certificates up to a
1536 trusted root CA prior to insertion into Pluto's chained list.
1538 - replaced the --assign option by the -v option in the auto awk script
1539 in order to make it run with mawk under debian/woody.
1545 - Split of the status information between ipsec auto --status (concise)
1546 and ipsec auto --statusall (verbose). Both commands can be used with
1547 an optional connection selector:
1549 ipsec auto --status[all] <connection_name>
1551 - Added the description of X.509 related features to the ipsec_auto(8)
1554 - Hardened the ASN.1 parser in debug mode, especially the printing
1555 of malformed distinguished names.
1557 - The size of an RSA public key received in a certificate is now restricted to
1559 512 bits <= modulus length <= 8192 bits.
1561 - Fixed the debug mode enumeration.
1567 - Fixed another PKCS#7 vulnerability which could lead to an
1568 endless loop while following the X.509 trust chain.
1574 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
1575 that accepted end certificates having identical issuer and subject
1576 distinguished names in a multi-tier X.509 trust chain.
1582 - Removed all remaining references to ipsec_netlink.h in KLIPS.
1588 - The new "ca" section allows to define the following parameters:
1591 cacert=koolCA.pem # cacert of kool CA
1592 ocspuri=http://ocsp.kool.net:8001 # ocsp server
1593 ldapserver=ldap.kool.net # default ldap server
1594 crluri=http://www.kool.net/kool.crl # crl distribution point
1595 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
1596 auto=add # add, ignore
1598 The ca definitions can be monitored via the command
1600 ipsec auto --listcainfos
1602 - Fixed cosmetic corruption of /proc filesystem by integrating
1603 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
1609 - Added support for the 818043 NAT-Traversal update of Microsoft's
1610 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
1612 - A symbolic link to libcrypto is now added in the kernel sources
1613 during kernel compilation
1615 - Fixed a couple of 64 bit issues (mostly casts to int).
1616 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
1618 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
1619 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
1620 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
1626 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
1627 certificate extension which contains no generalName item) can cause
1628 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
1629 been hardened to make it more robust against malformed ASN.1 objects.
1631 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
1632 Linux 2.6 IPsec stack.
1638 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12
projects / strongswan.git / blob