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.
14 - The nm plugin now passes DNS/NBNS server information to NetworkManager,
15 allowing a gateway administrator to set DNS/NBNS configuration on clients
18 - The nm plugin also accepts CA certificates for gateway authentication. If
19 a CA certificate is configured, strongSwan uses the entered gateway address
20 as its idenitity, requiring the gateways certificate to contain the same as
21 subjectAltName. This allows a gateway administrator to deploy the same
22 certificates to Windows 7 and NetworkManager clients.
24 - The command ipsec purgeike deletes IKEv2 SAs that don't have a CHILD SA.
25 The command ipsec down <conn>{n} deletes CHILD SA instance n of connection
26 <conn> whereas ipsec down <conn>{*} deletes all CHILD SA instances.
27 The command ipsec down <conn>[n] deletes IKE SA instance n of connection
28 <conn> plus dependent CHILD SAs whereas ipsec down <conn>[*] deletes all
29 IKE SA instances of connection <conn>.
31 - Fixed a regression introduced in 4.3.0 where EAP authentication calculated
32 the AUTH payload incorrectly. Further, the EAP-MSCHAPv2 MSK key derivation
33 has been updated to be compatible with the Windows 7 Release Candidate.
35 - Refactored installation of triggering policies. Routed policies are handled
36 outside of IKE_SAs to keep them installed in any case. A tunnel gets
37 established only once, even if initiation is delayed due network outages.
39 - Improved the handling of multiple acquire signals triggered by the kernel.
41 - Fixed two DoS vulnerabilities in the charon daemon that were discovered by
42 fuzzing techniques: 1) Sending a malformed IKE_SA_INIT request leaved an
43 incomplete state which caused a null pointer dereference if a subsequent
44 CREATE_CHILD_SA request was sent. 2) Sending an IKE_AUTH request with either
45 a missing TSi or TSr payload caused a null pointer derefence because the
46 checks for TSi and TSr were interchanged. The IKEv2 fuzzer used was
47 developped by the Orange Labs vulnerability research team. The tool was
48 initially written by Gabriel Campana and is now maintained by Laurent Butti.
50 - Added support for AES counter mode in ESP in IKEv2 using the proposal
51 keywords aes128ctr, aes192ctr and aes256ctr.
53 - Further progress in refactoring pluto: Use of the curl and ldap plugins
54 for fetching crls and OCSP. Use of the random plugin to get keying material
55 from /dev/random or /dev/urandom. Use of the openssl plugin as an alternative
56 to the aes, des, sha1, sha2, and md5 plugins. The blowfish, twofish, and
57 serpent encryption plugins are now optional and are not enabled by default.
63 - Support for the IKEv2 Multiple Authentication Exchanges extension (RFC4739).
64 Initiators and responders can use several authentication rounds (e.g. RSA
65 followed by EAP) to authenticate. The new ipsec.conf leftauth/rightauth and
66 leftauth2/rightauth2 parameters define own authentication rounds or setup
67 constraints for the remote peer. See the ipsec.conf man page for more detials.
69 - If glibc printf hooks (register_printf_function) are not available,
70 strongSwan can use the vstr string library to run on non-glibc systems.
72 - The IKEv2 charon daemon can now configure the ESP CAMELLIA-CBC cipher
73 (esp=camellia128|192|256).
75 - Refactored the pluto and scepclient code to use basic functions (memory
76 allocation, leak detective, chunk handling, printf_hooks, strongswan.conf
77 attributes, ASN.1 parser, etc.) from the libstrongswan library.
79 - Up to two DNS and WINS servers to be sent via IKEv1 ModeConfig can be
80 configured in the pluto section of strongswan.conf.
86 - The new server-side EAP RADIUS plugin (--enable-eap-radius)
87 relays EAP messages to and from a RADIUS server. Succesfully
88 tested with with a freeradius server using EAP-MD5 and EAP-SIM.
90 - A vulnerability in the Dead Peer Detection (RFC 3706) code was found by
91 Gerd v. Egidy <gerd.von.egidy@intra2net.com> of Intra2net AG affecting
92 all Openswan and strongSwan releases. A malicious (or expired ISAKMP)
93 R_U_THERE or R_U_THERE_ACK Dead Peer Detection packet can cause the
94 pluto IKE daemon to crash and restart. No authentication or encryption
95 is required to trigger this bug. One spoofed UDP packet can cause the
96 pluto IKE daemon to restart and be unresponsive for a few seconds while
97 restarting. This DPD null state vulnerability has been officially
98 registered as CVE-2009-0790 and is fixed by this release.
100 - ASN.1 to time_t conversion caused a time wrap-around for
101 dates after Jan 18 03:14:07 UTC 2038 on 32-bit platforms.
102 As a workaround such dates are set to the maximum representable
103 time, i.e. Jan 19 03:14:07 UTC 2038.
105 - Distinguished Names containing wildcards (*) are not sent in the
112 - Fixed a use-after-free bug in the DPD timeout section of the
113 IKEv1 pluto daemon which sporadically caused a segfault.
115 - Fixed a crash in the IKEv2 charon daemon occuring with
116 mixed RAM-based and SQL-based virtual IP address pools.
118 - Fixed ASN.1 parsing of algorithmIdentifier objects where the
119 parameters field is optional.
121 - Ported nm plugin to NetworkManager 7.1.
127 - Support of the EAP-MSCHAPv2 protocol enabled by the option
128 --enable-eap-mschapv2. Requires the MD4 hash algorithm enabled
129 either by --enable-md4 or --enable-openssl.
131 - Assignment of up to two DNS and up to two WINS servers to peers via
132 the IKEv2 Configuration Payload (CP). The IPv4 or IPv6 nameserver
133 addresses are defined in strongswan.conf.
135 - The strongSwan applet for the Gnome NetworkManager is now built and
136 distributed as a separate tarball under the name NetworkManager-strongswan.
142 - Fixed ESP NULL encryption broken by the refactoring of keymat.c.
143 Also introduced proper initialization and disposal of keying material.
145 - Fixed the missing listing of connection definitions in ipsec statusall
146 broken by an unfortunate local variable overload.
152 - Several performance improvements to handle thousands of tunnels with almost
153 linear upscaling. All relevant data structures have been replaced by faster
154 counterparts with better lookup times.
156 - Better parallelization to run charon on multiple cores. Due to improved
157 ressource locking and other optimizations the daemon can take full
158 advantage of 16 or even more cores.
160 - The load-tester plugin can use a NULL Diffie-Hellman group and simulate
161 unique identities and certificates by signing peer certificates using a CA
164 - The redesigned stroke in-memory IP pool handles leases. The "ipsec leases"
165 command queries assigned leases.
167 - Added support for smartcards in charon by using the ENGINE API provided by
168 OpenSSL, based on patches by Michael Roßberg.
170 - The Padlock plugin supports the hardware RNG found on VIA CPUs to provide a
171 reliable source of randomness.
176 - Flexible configuration of logging subsystem allowing to log to multiple
177 syslog facilities or to files using fine-grained log levels for each target.
179 - Load testing plugin to do stress testing of the IKEv2 daemon against self
180 or another host. Found and fixed issues during tests in the multi-threaded
181 use of the OpenSSL plugin.
183 - Added profiling code to synchronization primitives to find bottlenecks if
184 running on multiple cores. Found and fixed an issue where parts of the
185 Diffie-Hellman calculation acquired an exclusive lock. This greatly improves
186 parallelization to multiple cores.
188 - updown script invocation has been separated into a plugin of its own to
189 further slim down the daemon core.
191 - Separated IKE_SA/CHILD_SA key derivation process into a closed system,
192 allowing future implementations to use a secured environment in e.g. kernel
195 - The kernel interface of charon has been modularized. XFRM NETLINK (default)
196 and PFKEY (--enable-kernel-pfkey) interface plugins for the native IPsec
197 stack of the Linux 2.6 kernel as well as a PFKEY interface for the KLIPS
198 IPsec stack (--enable-kernel-klips) are provided.
200 - Basic Mobile IPv6 support has been introduced, securing Binding Update
201 messages as well as tunneled traffic between Mobile Node and Home Agent.
202 The installpolicy=no option allows peaceful cooperation with a dominant
203 mip6d daemon and the new type=transport_proxy implements the special MIPv6
204 IPsec transport proxy mode where the IKEv2 daemon uses the Care-of-Address
205 but the IPsec SA is set up for the Home Adress.
207 - Implemented migration of Mobile IPv6 connections using the KMADDRESS
208 field contained in XFRM_MSG_MIGRATE messages sent by the mip6d daemon
209 via the Linux 2.6.28 (or appropriately patched) kernel.
215 - IKEv2 charon daemon supports authentication based on raw public keys
216 stored in the SQL database backend. The ipsec listpubkeys command
217 lists the available raw public keys via the stroke interface.
219 - Several MOBIKE improvements: Detect changes in NAT mappings in DPD exchanges,
220 handle events if kernel detects NAT mapping changes in UDP-encapsulated
221 ESP packets (requires kernel patch), reuse old addesses in MOBIKE updates as
222 long as possible and other fixes.
224 - Fixed a bug in addr_in_subnet() which caused insertion of wrong source
225 routes for destination subnets having netwmasks not being a multiple of 8 bits.
226 Thanks go to Wolfgang Steudel, TU Ilmenau for reporting this bug.
232 - Fixed a Denial-of-Service vulnerability where an IKE_SA_INIT message with
233 a KE payload containing zeroes only can cause a crash of the IKEv2 charon
234 daemon due to a NULL pointer returned by the mpz_export() function of the
235 GNU Multiprecision Library (GMP). Thanks go to Mu Dynamics Research Labs
236 for making us aware of this problem.
238 - The new agent plugin provides a private key implementation on top of an
241 - The NetworkManager plugin has been extended to support certificate client
242 authentication using RSA keys loaded from a file or using ssh-agent.
244 - Daemon capability dropping has been ported to libcap and must be enabled
245 explicitly --with-capabilities=libcap. Future version will support the
246 newer libcap2 library.
248 - ipsec listalgs lists the IKEv2 cryptografic algorithms registered with the
249 charon keying daemon.
255 - A NetworkManager plugin allows GUI-based configuration of road-warrior
256 clients in a simple way. It features X509 based gateway authentication
257 and EAP client authentication, tunnel setup/teardown and storing passwords
258 in the Gnome Keyring.
260 - A new EAP-GTC plugin implements draft-sheffer-ikev2-gtc-00.txt and allows
261 username/password authentication against any PAM service on the gateway.
262 The new EAP method interacts nicely with the NetworkManager plugin and allows
263 client authentication against e.g. LDAP.
265 - Improved support for the EAP-Identity method. The new ipsec.conf eap_identity
266 parameter defines an additional identity to pass to the server in EAP
269 - The "ipsec statusall" command now lists CA restrictions, EAP
270 authentication types and EAP identities.
272 - Fixed two multithreading deadlocks occurring when starting up
273 several hundred tunnels concurrently.
275 - Fixed the --enable-integrity-test configure option which
276 computes a SHA-1 checksum over the libstrongswan library.
282 - Consistent logging of IKE and CHILD SAs at the audit (AUD) level.
284 - Improved the performance of the SQL-based virtual IP address pool
285 by introducing an additional addresses table. The leases table
286 storing only history information has become optional and can be
287 disabled by setting charon.plugins.sql.lease_history = no in
290 - The XFRM_STATE_AF_UNSPEC flag added to xfrm.h allows IPv4-over-IPv6
291 and IPv6-over-IPv4 tunnels with the 2.6.26 and later Linux kernels.
293 - management of different virtual IP pools for different
294 network interfaces have become possible.
296 - fixed a bug which prevented the assignment of more than 256
297 virtual IP addresses from a pool managed by an sql database.
299 - fixed a bug which did not delete own IPCOMP SAs in the kernel.
305 - Added statistics functions to ipsec pool --status and ipsec pool --leases
306 and input validation checks to various ipsec pool commands.
308 - ipsec statusall now lists all loaded charon plugins and displays
309 the negotiated IKEv2 cipher suite proposals.
311 - The openssl plugin supports the elliptic curve Diffie-Hellman groups
312 19, 20, 21, 25, and 26.
314 - The openssl plugin supports ECDSA authentication using elliptic curve
317 - Fixed a bug in stroke which caused multiple charon threads to close
318 the file descriptors during packet transfers over the stroke socket.
320 - ESP sequence numbers are now migrated in IPsec SA updates handled by
321 MOBIKE. Works only with Linux kernels >= 2.6.17.
327 - Fixed the strongswan.conf path configuration problem that occurred when
328 --sysconfig was not set explicitly in ./configure.
330 - Fixed a number of minor bugs that where discovered during the 4th
331 IKEv2 interoperability workshop in San Antonio, TX.
337 - Plugins for libstrongswan and charon can optionally be loaded according
338 to a configuration in strongswan.conf. Most components provide a
339 "load = " option followed by a space separated list of plugins to load.
340 This allows e.g. the fallback from a hardware crypto accelerator to
341 to software-based crypto plugins.
343 - Charons SQL plugin has been extended by a virtual IP address pool.
344 Configurations with a rightsourceip=%poolname setting query a SQLite or
345 MySQL database for leases. The "ipsec pool" command helps in administrating
346 the pool database. See ipsec pool --help for the available options
348 - The Authenticated Encryption Algorithms AES-CCM-8/12/16 and AES-GCM-8/12/16
349 for ESP are now supported starting with the Linux 2.6.25 kernel. The
350 syntax is e.g. esp=aes128ccm12 or esp=aes256gcm16.
356 - Support for "Hash and URL" encoded certificate payloads has been implemented
357 in the IKEv2 daemon charon. Using the "certuribase" option of a CA section
358 allows to assign a base URL to all certificates issued by the specified CA.
359 The final URL is then built by concatenating that base and the hex encoded
360 SHA1 hash of the DER encoded certificate. Note that this feature is disabled
361 by default and must be enabled using the option "charon.hash_and_url".
363 - The IKEv2 daemon charon now supports the "uniqueids" option to close multiple
364 IKE_SAs with the same peer. The option value "keep" prefers existing
365 connection setups over new ones, where the value "replace" replaces existing
368 - The crypto factory in libstrongswan additionaly supports random number
369 generators, plugins may provide other sources of randomness. The default
370 plugin reads raw random data from /dev/(u)random.
372 - Extended the credential framework by a caching option to allow plugins
373 persistent caching of fetched credentials. The "cachecrl" option has been
376 - The new trustchain verification introduced in 4.2.0 has been parallelized.
377 Threads fetching CRL or OCSP information no longer block other threads.
379 - A new IKEv2 configuration attribute framework has been introduced allowing
380 plugins to provide virtual IP addresses, and in the future, other
381 configuration attribute services (e.g. DNS/WINS servers).
383 - The stroke plugin has been extended to provide virtual IP addresses from
384 a pool defined in ipsec.conf. The "rightsourceip" parameter now accepts
385 address pools in CIDR notation (e.g. 10.1.1.0/24). The parameter also accepts
386 the value "%poolname", where "poolname" identifies a pool provided by a
389 - Fixed compilation on uClibc and a couple of other minor bugs.
391 - Set DPD defaults in ipsec starter to dpd_delay=30s and dpd_timeout=150s.
393 - The IKEv1 pluto daemon now supports the ESP encryption algorithm CAMELLIA
394 with key lengths of 128, 192, and 256 bits, as well as the authentication
395 algorithm AES_XCBC_MAC. Configuration example: esp=camellia192-aesxcbc.
401 - libstrongswan has been modularized to attach crypto algorithms,
402 credential implementations (keys, certificates) and fetchers dynamically
403 through plugins. Existing code has been ported to plugins:
404 - RSA/Diffie-Hellman implementation using the GNU Multi Precision library
405 - X509 certificate system supporting CRLs, OCSP and attribute certificates
406 - Multiple plugins providing crypto algorithms in software
407 - CURL and OpenLDAP fetcher
409 - libstrongswan gained a relational database API which uses pluggable database
410 providers. Plugins for MySQL and SQLite are available.
412 - The IKEv2 keying daemon charon is more extensible. Generic plugins may provide
413 connection configuration, credentials and EAP methods or control the daemon.
414 Existing code has been ported to plugins:
415 - EAP-AKA, EAP-SIM, EAP-MD5 and EAP-Identity
416 - stroke configuration, credential and control (compatible to pluto)
417 - XML bases management protocol to control and query the daemon
418 The following new plugins are available:
419 - An experimental SQL configuration, credential and logging plugin on
420 top of either MySQL or SQLite
421 - A unit testing plugin to run tests at daemon startup
423 - The authentication and credential framework in charon has been heavily
424 refactored to support modular credential providers, proper
425 CERTREQ/CERT payload exchanges and extensible authorization rules.
427 - The framework of strongSwan Manager has envolved to the web application
428 framework libfast (FastCGI Application Server w/ Templates) and is usable
429 by other applications.
435 - IKE rekeying in NAT situations did not inherit the NAT conditions
436 to the rekeyed IKE_SA so that the UDP encapsulation was lost with
437 the next CHILD_SA rekeying.
439 - Wrong type definition of the next_payload variable in id_payload.c
440 caused an INVALID_SYNTAX error on PowerPC platforms.
442 - Implemented IKEv2 EAP-SIM server and client test modules that use
443 triplets stored in a file. For details on the configuration see
444 the scenario 'ikev2/rw-eap-sim-rsa'.
450 - Fixed error in the ordering of the certinfo_t records in the ocsp cache that
451 caused multiple entries of the same serial number to be created.
453 - Implementation of a simple EAP-MD5 module which provides CHAP
454 authentication. This may be interesting in conjunction with certificate
455 based server authentication, as weak passwords can't be brute forced
456 (in contradiction to traditional IKEv2 PSK).
458 - A complete software based implementation of EAP-AKA, using algorithms
459 specified in 3GPP2 (S.S0055). This implementation does not use an USIM,
460 but reads the secrets from ipsec.secrets. Make sure to read eap_aka.h
463 - Support for vendor specific EAP methods using Expanded EAP types. The
464 interface to EAP modules has been slightly changed, so make sure to
465 check the changes if you're already rolling your own modules.
471 - The default _updown script now dynamically inserts and removes ip6tables
472 firewall rules if leftfirewall=yes is set in IPv6 connections. New IPv6
473 net-net and roadwarrior (PSK/RSA) scenarios for both IKEv1 and IKEV2 were
476 - Implemented RFC4478 repeated authentication to force EAP/Virtual-IP clients
477 to reestablish an IKE_SA within a given timeframe.
479 - strongSwan Manager supports configuration listing, initiation and termination
480 of IKE and CHILD_SAs.
482 - Fixes and improvements to multithreading code.
484 - IKEv2 plugins have been renamed to libcharon-* to avoid naming conflicts.
485 Make sure to remove the old plugins in $libexecdir/ipsec, otherwise they get
492 - Removed recursive pthread mutexes since uClibc doesn't support them.
498 - In NAT traversal situations and multiple queued Quick Modes,
499 those pending connections inserted by auto=start after the
500 port floating from 500 to 4500 were erronously deleted.
502 - Added a "forceencaps" connection parameter to enforce UDP encapsulation
503 to surmount restrictive firewalls. NAT detection payloads are faked to
504 simulate a NAT situation and trick the other peer into NAT mode (IKEv2 only).
506 - Preview of strongSwan Manager, a web based configuration and monitoring
507 application. It uses a new XML control interface to query the IKEv2 daemon
508 (see http://trac.strongswan.org/wiki/Manager).
510 - Experimental SQLite configuration backend which will provide the configuration
511 interface for strongSwan Manager in future releases.
513 - Further improvements to MOBIKE support.
519 - Since some third party IKEv2 implementations run into
520 problems with strongSwan announcing MOBIKE capability per
521 default, MOBIKE can be disabled on a per-connection-basis
522 using the mobike=no option. Whereas mobike=no disables the
523 sending of the MOBIKE_SUPPORTED notification and the floating
524 to UDP port 4500 with the IKE_AUTH request even if no NAT
525 situation has been detected, strongSwan will still support
526 MOBIKE acting as a responder.
528 - the default ipsec routing table plus its corresponding priority
529 used for inserting source routes has been changed from 100 to 220.
530 It can be configured using the --with-ipsec-routing-table and
531 --with-ipsec-routing-table-prio options.
533 - the --enable-integrity-test configure option tests the
534 integrity of the libstrongswan crypto code during the charon
537 - the --disable-xauth-vid configure option disables the sending
538 of the XAUTH vendor ID. This can be used as a workaround when
539 interoperating with some Windows VPN clients that get into
540 trouble upon reception of an XAUTH VID without eXtended
541 AUTHentication having been configured.
543 - ipsec stroke now supports the rereadsecrets, rereadaacerts,
544 rereadacerts, and listacerts options.
550 - If a DNS lookup failure occurs when resolving right=%<FQDN>
551 or right=<FQDN> combined with rightallowany=yes then the
552 connection is not updated by ipsec starter thus preventing
553 the disruption of an active IPsec connection. Only if the DNS
554 lookup successfully returns with a changed IP address the
555 corresponding connection definition is updated.
557 - Routes installed by the keying daemons are now in a separate
558 routing table with the ID 100 to avoid conflicts with the main
559 table. Route lookup for IKEv2 traffic is done in userspace to ignore
560 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
566 - The pluto IKEv1 daemon now exhibits the same behaviour as its
567 IKEv2 companion charon by inserting an explicit route via the
568 _updown script only if a sourceip exists. This is admissible
569 since routing through the IPsec tunnel is handled automatically
570 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
571 parameter is not required any more.
573 - The new IKEv1 parameter right|leftallowany parameters helps to handle
574 the case where both peers possess dynamic IP addresses that are
575 usually resolved using DynDNS or a similar service. The configuration
580 can be used by the initiator to start up a connection to a peer
581 by resolving peer.foo.bar into the currently allocated IP address.
582 Thanks to the rightallowany flag the connection behaves later on
587 so that the peer can rekey the connection as an initiator when his
588 IP address changes. An alternative notation is
592 which will implicitly set rightallowany=yes.
594 - ipsec starter now fails more gracefully in the presence of parsing
595 errors. Flawed ca and conn section are discarded and pluto is started
596 if non-fatal errors only were encountered. If right=%peer.foo.bar
597 cannot be resolved by DNS then right=%any will be used so that passive
598 connections as a responder are still possible.
600 - The new pkcs11initargs parameter that can be placed in the
601 setup config section of /etc/ipsec.conf allows the definition
602 of an argument string that is used with the PKCS#11 C_Initialize()
603 function. This non-standard feature is required by the NSS softoken
604 library. This patch was contributed by Robert Varga.
606 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
607 which caused a segmentation fault in the presence of unknown
608 or misspelt keywords in ipsec.conf. This bug fix was contributed
611 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
612 address configuration changes and updates IKE and IPsec SAs dynamically.
618 - IKEv2 peer configuration selection now can be based on a given
619 certification authority using the rightca= statement.
621 - IKEv2 authentication based on RSA signatures now can handle multiple
622 certificates issued for a given peer ID. This allows a smooth transition
623 in the case of a peer certificate renewal.
625 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
626 client and returning requested virtual IPs using rightsourceip=%config
627 on the server. If the server does not support configuration payloads, the
628 client enforces its leftsourceip parameter.
630 - The ./configure options --with-uid/--with-gid allow pluto and charon
631 to drop their privileges to a minimum and change to an other UID/GID. This
632 improves the systems security, as a possible intruder may only get the
633 CAP_NET_ADMIN capability.
635 - Further modularization of charon: Pluggable control interface and
636 configuration backend modules provide extensibility. The control interface
637 for stroke is included, and further interfaces using DBUS (NetworkManager)
638 or XML are on the way. A backend for storing configurations in the daemon
639 is provided and more advanced backends (using e.g. a database) are trivial
642 - Fixed a compilation failure in libfreeswan occuring with Linux kernel
649 - Support for an additional Diffie-Hellman exchange when creating/rekeying
650 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
651 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
652 is implemented properly for rekeying.
654 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
655 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
657 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
659 - Added support for EAP modules which do not establish an MSK.
661 - Removed the dependencies from the /usr/include/linux/ headers by
662 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
664 - crlNumber is now listed by ipsec listcrls
666 - The xauth_modules.verify_secret() function now passes the
673 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
674 cookies are enabled and protect against DoS attacks with faked source
675 addresses. Number of IKE_SAs in CONNECTING state is also limited per
676 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
677 compared to properly detect retransmissions and incoming retransmits are
678 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
680 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
681 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
682 enabled by cachecrls=yes.
684 - Added the configuration options --enable-nat-transport which enables
685 the potentially insecure NAT traversal for IPsec transport mode and
686 --disable-vendor-id which disables the sending of the strongSwan
689 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
690 a segmentation fault if a malformed payload was detected in the
691 IKE MR2 message and pluto tried to send an encrypted notification
694 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
695 with Windows 2003 Server which uses a wrong VID hash.
701 - Support of SHA2_384 hash function for protecting IKEv1
702 negotiations and support of SHA2 signatures in X.509 certificates.
704 - Fixed a serious bug in the computation of the SHA2-512 HMAC
705 function. Introduced automatic self-test of all IKEv1 hash
706 and hmac functions during pluto startup. Failure of a self-test
707 currently issues a warning only but does not exit pluto [yet].
709 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
711 - Full support of CA information sections. ipsec listcainfos
712 now shows all collected crlDistributionPoints and OCSP
715 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
716 This feature requires the HTTP fetching capabilities of the libcurl
717 library which must be enabled by setting the --enable-http configure
720 - Refactored core of the IKEv2 message processing code, allowing better
721 code reuse and separation.
723 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
724 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
725 by the requestor and installed in a resolv.conf file.
727 - The IKEv2 daemon charon installs a route for each IPsec policy to use
728 the correct source address even if an application does not explicitly
731 - Integrated the EAP framework into charon which loads pluggable EAP library
732 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
733 on the client side, while the "eap" parameter on the server side defines
734 the EAP method to use for client authentication.
735 A generic client side EAP-Identity module and an EAP-SIM authentication
736 module using a third party card reader implementation are included.
738 - Added client side support for cookies.
740 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
741 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
742 fixes to enhance interoperability with other implementations.
748 - strongSwan now interoperates with the NCP Secure Entry Client,
749 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
750 XAUTH and Mode Config.
752 - UNITY attributes are now recognized and UNITY_BANNER is set
759 - IKEv1: Support for extended authentication (XAUTH) in combination
760 with ISAKMP Main Mode RSA or PSK authentication. Both client and
761 server side were implemented. Handling of user credentials can
762 be done by a run-time loadable XAUTH module. By default user
763 credentials are stored in ipsec.secrets.
765 - IKEv2: Support for reauthentication when rekeying
767 - IKEv2: Support for transport mode
769 - fixed a lot of bugs related to byte order
771 - various other bugfixes
777 - IKEv1: Implementation of ModeConfig push mode via the new connection
778 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
780 - IKEv1: The command ipsec statusall now shows "DPD active" for all
781 ISAKMP SAs that are under active Dead Peer Detection control.
783 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
784 Instead of logger, special printf() functions are used to directly
785 print objects like hosts (%H) identifications (%D), certificates (%Q),
786 etc. The number of debugging levels have been reduced to:
788 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
790 The debugging levels can either be specified statically in ipsec.conf as
793 charondebug="lib 1, cfg 3, net 2"
795 or changed at runtime via stroke as
797 ipsec stroke loglevel cfg 2
803 - Implemented full support for IPv6-in-IPv6 tunnels.
805 - Added configuration options for dead peer detection in IKEv2. dpd_action
806 types "clear", "hold" and "restart" are supported. The dpd_timeout
807 value is not used, as the normal retransmission policy applies to
808 detect dead peers. The dpd_delay parameter enables sending of empty
809 informational message to detect dead peers in case of inactivity.
811 - Added support for preshared keys in IKEv2. PSK keys configured in
812 ipsec.secrets are loaded. The authby parameter specifies the authentication
813 method to authentificate ourself, the other peer may use PSK or RSA.
815 - Changed retransmission policy to respect the keyingtries parameter.
817 - Added private key decryption. PEM keys encrypted with AES-128/192/256
818 or 3DES are supported.
820 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
823 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
824 signed with such a hash algorithm.
826 - Added initial support for updown scripts. The actions up-host/client and
827 down-host/client are executed. The leftfirewall=yes parameter
828 uses the default updown script to insert dynamic firewall rules, a custom
829 updown script may be specified with the leftupdown parameter.
835 - Added support for the auto=route ipsec.conf parameter and the
836 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
837 CHILD_SAs dynamically on demand when traffic is detected by the
840 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
841 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
842 new keys are generated using perfect forward secrecy. An optional flag
843 which enforces reauthentication will be implemented later.
845 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
846 algorithm configuration statements.
852 - Full X.509 certificate trust chain verification has been implemented.
853 End entity certificates can be exchanged via CERT payloads. The current
854 default is leftsendcert=always, since CERTREQ payloads are not supported
855 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
857 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
858 would offer more possibilities for traffic selection, but the Linux kernel
859 currently does not support it. That's why we stick with these simple
860 ipsec.conf rules for now.
862 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
863 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
866 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
867 notify payloads to detect NAT routers between the peers. It switches
868 to port 4500, uses UDP encapsulated ESP packets, handles peer address
869 changes gracefully and sends keep alive message periodically.
871 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
872 rekeying, more shared code, cleaner design, proper retransmission
873 and a more extensible code base.
875 - The mixed PSK/RSA roadwarrior detection capability introduced by the
876 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
877 payloads by the responder right before any defined IKE Main Mode state had
878 been established. Although any form of bad proposal syntax was being correctly
879 detected by the payload parser, the subsequent error handler didn't check
880 the state pointer before logging current state information, causing an
881 immediate crash of the pluto keying daemon due to a NULL pointer.
887 - Added algorithm selection to charon: New default algorithms for
888 ike=aes128-sha-modp2048, as both daemons support it. The default
889 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
890 the ike/esp parameter the same way as pluto. As this syntax does
891 not allow specification of a pseudo random function, the same
892 algorithm as for integrity is used (currently sha/md5). Supported
894 Encryption: aes128, aes192, aes256
895 Integrity/PRF: md5, sha (using hmac)
896 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
898 Encryption: aes128, aes192, aes256, 3des, blowfish128,
899 blowfish192, blowfish256
901 More IKE encryption algorithms will come after porting libcrypto into
904 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
905 perfect forward secrecy is used. The rekeying parameters rekey,
906 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
907 when using IKEv2. WARNING: charon currently is unable to handle
908 simultaneous rekeying. To avoid such a situation, use a large
909 rekeyfuzz, or even better, set rekey=no on one peer.
911 - support for host2host, net2net, host2net (roadwarrior) tunnels
912 using predefined RSA certificates (see uml scenarios for
913 configuration examples).
915 - new build environment featuring autotools. Features such
916 as HTTP, LDAP and smartcard support may be enabled using
917 the ./configure script. Changing install directories
918 is possible, too. See ./configure --help for more details.
920 - better integration of charon with ipsec starter, which allows
921 (almost) transparent operation with both daemons. charon
922 handles ipsec commands up, down, status, statusall, listall,
923 listcerts and allows proper load, reload and delete of connections
930 - initial support of the IKEv2 protocol. Connections in
931 ipsec.conf designated by keyexchange=ikev2 are negotiated
932 by the new IKEv2 charon keying daemon whereas those marked
933 by keyexchange=ikev1 or the default keyexchange=ike are
934 handled thy the IKEv1 pluto keying daemon. Currently only
935 a limited subset of functions are available with IKEv2
936 (Default AES encryption, authentication based on locally
937 imported X.509 certificates, unencrypted private RSA keys
938 in PKCS#1 file format, limited functionality of the ipsec
945 - the dynamic iptables rules from the _updown_x509 template
946 for KLIPS and the _updown_policy template for NETKEY have
947 been merged into the default _updown script. The existing
948 left|rightfirewall keyword causes the automatic insertion
949 and deletion of ACCEPT rules for tunneled traffic upon
950 the successful setup and teardown of an IPsec SA, respectively.
951 left|rightfirwall can be used with KLIPS under any Linux 2.4
952 kernel or with NETKEY under a Linux kernel version >= 2.6.16
953 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
954 kernel version < 2.6.16 which does not support IPsec policy
955 matching yet, please continue to use a copy of the _updown_espmark
956 template loaded via the left|rightupdown keyword.
958 - a new left|righthostaccess keyword has been introduced which
959 can be used in conjunction with left|rightfirewall and the
960 default _updown script. By default leftfirewall=yes inserts
961 a bi-directional iptables FORWARD rule for a local client network
962 with a netmask different from 255.255.255.255 (single host).
963 This does not allow to access the VPN gateway host via its
964 internal network interface which is part of the client subnet
965 because an iptables INPUT and OUTPUT rule would be required.
966 lefthostaccess=yes will cause this additional ACCEPT rules to
969 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
970 payload is preparsed in order to find out whether the roadwarrior
971 requests PSK or RSA so that a matching connection candidate can
978 - the new _updown_policy template allows ipsec policy based
979 iptables firewall rules. Required are iptables version
980 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
981 the _updown_espmark template, so that no INPUT mangle rules
982 are required any more.
984 - added support of DPD restart mode
986 - ipsec starter now allows the use of wildcards in include
987 statements as e.g. in "include /etc/my_ipsec/*.conf".
988 Patch courtesy of Matthias Haas.
990 - the Netscape OID 'employeeNumber' is now recognized and can be
991 used as a Relative Distinguished Name in certificates.
997 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
998 command and not of ipsec setup any more.
1000 - ipsec starter now supports AH authentication in conjunction with
1001 ESP encryption. AH authentication is configured in ipsec.conf
1002 via the auth=ah parameter.
1004 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
1005 ipsec whack --scencrypt|scdecrypt <args>.
1007 - get_sa_info() now determines for the native netkey IPsec stack
1008 the exact time of the last use of an active eroute. This information
1009 is used by the Dead Peer Detection algorithm and is also displayed by
1010 the ipsec status command.
1016 - running under the native Linux 2.6 IPsec stack, the function
1017 get_sa_info() is called by ipsec auto --status to display the current
1018 number of transmitted bytes per IPsec SA.
1020 - get_sa_info() is also used by the Dead Peer Detection process to detect
1021 recent ESP activity. If ESP traffic was received from the peer within
1022 the last dpd_delay interval then no R_Y_THERE notification must be sent.
1024 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
1025 in ID_DER_ASN1_DN identities. The following notations are possible:
1027 rightid="unstructuredName=John Doe"
1028 rightid="UN=John Doe"
1030 - fixed a long-standing bug which caused PSK-based roadwarrior connections
1031 to segfault in the function id.c:same_id() called by keys.c:get_secret()
1032 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
1039 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
1041 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
1043 - in order to guarantee backwards-compatibility with the script-based
1044 auto function (e.g. auto --replace), the ipsec starter scripts stores
1045 the defaultroute information in the temporary file /var/run/ipsec.info.
1047 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
1048 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
1051 - the ipsec starter now also recognizes the parameters authby=never and
1052 type=passthrough|pass|drop|reject.
1058 - ipsec starter now supports the also parameter which allows
1059 a modular structure of the connection definitions. Thus
1060 "ipsec start" is now ready to replace "ipsec setup".
1066 - Mathieu Lafon's popular ipsec starter tool has been added to the
1067 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
1068 for his integration work. ipsec starter is a C program which is going
1069 to replace the various shell and awk starter scripts (setup, _plutoload,
1070 _plutostart, _realsetup, _startklips, _confread, and auto). Since
1071 ipsec.conf is now parsed only once, the starting of multiple tunnels is
1072 accelerated tremedously.
1074 - Added support of %defaultroute to the ipsec starter. If the IP address
1075 changes, a HUP signal to the ipsec starter will automatically
1076 reload pluto's connections.
1078 - moved most compile time configurations from pluto/Makefile to
1079 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
1080 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
1082 - removed the ipsec verify and ipsec newhostkey commands
1084 - fixed some 64-bit issues in formatted print statements
1086 - The scepclient functionality implementing the Simple Certificate
1087 Enrollment Protocol (SCEP) is nearly complete but hasn't been
1094 - CA certicates are now automatically loaded from a smartcard
1095 or USB crypto token and appear in the ipsec auto --listcacerts
1102 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
1103 library that does not support the C_Encrypt() Cryptoki
1104 function (e.g. OpenSC), the RSA encryption is done in
1105 software using the public key fetched from the smartcard.
1107 - The scepclient function now allows to define the
1108 validity of a self-signed certificate using the --days,
1109 --startdate, and --enddate options. The default validity
1110 has been changed from one year to five years.
1116 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
1117 interface to other applications for RSA encryption and decryption
1118 via the whack interface. Notation:
1120 ipsec whack --scencrypt <data>
1121 [--inbase 16|hex|64|base64|256|text|ascii]
1122 [--outbase 16|hex|64|base64|256|text|ascii]
1125 ipsec whack --scdecrypt <data>
1126 [--inbase 16|hex|64|base64|256|text|ascii]
1127 [--outbase 16|hex|64|base64|256|text|ascii]
1130 The default setting for inbase and outbase is hex.
1132 The new proxy interface can be used for securing symmetric
1133 encryption keys required by the cryptoloop or dm-crypt
1134 disk encryption schemes, especially in the case when
1135 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
1138 - if the file /etc/ipsec.secrets is lacking during the startup of
1139 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
1140 containing a 2048 bit RSA private key and a matching self-signed
1141 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
1142 is automatically generated by calling the function
1144 ipsec scepclient --out pkcs1 --out cert-self
1146 scepclient was written by Jan Hutter and Martin Willi, students
1147 at the University of Applied Sciences in Rapperswil, Switzerland.
1153 - the current extension of the PKCS#7 framework introduced
1154 a parsing error in PKCS#7 wrapped X.509 certificates that are
1155 e.g. transmitted by Windows XP when multi-level CAs are used.
1156 the parsing syntax has been fixed.
1158 - added a patch by Gerald Richter which tolerates multiple occurrences
1159 of the ipsec0 interface when using KLIPS.
1165 - with gawk-3.1.4 the word "default2 has become a protected
1166 keyword for use in switch statements and cannot be used any
1167 more in the strongSwan scripts. This problem has been
1168 solved by renaming "default" to "defaults" and "setdefault"
1169 in the scripts _confread and auto, respectively.
1171 - introduced the parameter leftsendcert with the values
1173 always|yes (the default, always send a cert)
1174 ifasked (send the cert only upon a cert request)
1175 never|no (never send a cert, used for raw RSA keys and
1178 - fixed the initialization of the ESP key length to a default of
1179 128 bits in the case that the peer does not send a key length
1180 attribute for AES encryption.
1182 - applied Herbert Xu's uniqueIDs patch
1184 - applied Herbert Xu's CLOEXEC patches
1190 - CRLs can now be cached also in the case when the issuer's
1191 certificate does not contain a subjectKeyIdentifier field.
1192 In that case the subjectKeyIdentifier is computed by pluto as the
1193 160 bit SHA-1 hash of the issuer's public key in compliance
1194 with section 4.2.1.2 of RFC 3280.
1196 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
1197 not only multiple Quick Modes of a given connection but also
1198 multiple connections between two security gateways.
1204 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
1205 installed either by setting auto=route in ipsec.conf or by
1206 a connection put into hold, generates an XFRM_AQUIRE event
1207 for each packet that wants to use the not-yet exisiting
1208 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
1209 the Quick Mode queue, causing multiple IPsec SA to be
1210 established in rapid succession. Starting with strongswan-2.5.1
1211 only a single IPsec SA is established per host-pair connection.
1213 - Right after loading the PKCS#11 module, all smartcard slots are
1214 searched for certificates. The result can be viewed using
1217 ipsec auto --listcards
1219 The certificate objects found in the slots are numbered
1220 starting with #1, #2, etc. This position number can be used to address
1221 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
1222 in ipsec.conf and ipsec.secrets, respectively:
1224 %smartcard (selects object #1)
1225 %smartcard#1 (selects object #1)
1226 %smartcard#3 (selects object #3)
1228 As an alternative the existing retrieval scheme can be used:
1230 %smartcard:45 (selects object with id=45)
1231 %smartcard0 (selects first object in slot 0)
1232 %smartcard4:45 (selects object in slot 4 with id=45)
1234 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
1235 private key flags either C_Sign() or C_Decrypt() is used
1236 to generate a signature.
1238 - The output buffer length parameter siglen in C_Sign()
1239 is now initialized to the actual size of the output
1240 buffer prior to the function call. This fixes the
1241 CKR_BUFFER_TOO_SMALL error that could occur when using
1242 the OpenSC PKCS#11 module.
1244 - Changed the initialization of the PKCS#11 CK_MECHANISM in
1245 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
1247 - Refactored the RSA public/private key code and transferred it
1248 from keys.c to the new pkcs1.c file as a preparatory step
1249 towards the release of the SCEP client.
1255 - The loading of a PKCS#11 smartcard library module during
1256 runtime does not require OpenSC library functions any more
1257 because the corresponding code has been integrated into
1258 smartcard.c. Also the RSAREF pkcs11 header files have been
1259 included in a newly created pluto/rsaref directory so that
1260 no external include path has to be defined any longer.
1262 - A long-awaited feature has been implemented at last:
1263 The local caching of CRLs fetched via HTTP or LDAP, activated
1264 by the parameter cachecrls=yes in the config setup section
1265 of ipsec.conf. The dynamically fetched CRLs are stored under
1266 a unique file name containing the issuer's subjectKeyID
1267 in /etc/ipsec.d/crls.
1269 - Applied a one-line patch courtesy of Michael Richardson
1270 from the Openswan project which fixes the kernel-oops
1271 in KLIPS when an snmp daemon is running on the same box.
1277 - Eliminated null length CRL distribution point strings.
1279 - Fixed a trust path evaluation bug introduced with 2.4.3
1285 - Improved the joint OCSP / CRL revocation policy.
1286 OCSP responses have precedence over CRL entries.
1288 - Introduced support of CRLv2 reason codes.
1290 - Fixed a bug with key-pad equipped readers which caused
1291 pluto to prompt for the pin via the console when the first
1292 occasion to enter the pin via the key-pad was missed.
1294 - When pluto is built with LDAP_V3 enabled, the library
1295 liblber required by newer versions of openldap is now
1302 - Added the _updown_espmark template which requires all
1303 incoming ESP traffic to be marked with a default mark
1306 - Introduced the pkcs11keepstate parameter in the config setup
1307 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
1308 session and login states are kept as long as possible during
1309 the lifetime of pluto. This means that a PIN entry via a key
1310 pad has to be done only once.
1312 - Introduced the pkcs11module parameter in the config setup
1313 section of ipsec.conf which specifies the PKCS#11 module
1314 to be used with smart cards. Example:
1316 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
1318 - Added support of smartcard readers equipped with a PIN pad.
1320 - Added patch by Jay Pfeifer which detects when netkey
1321 modules have been statically built into the Linux 2.6 kernel.
1323 - Added two patches by Herbert Xu. The first uses ip xfrm
1324 instead of setkey to flush the IPsec policy database. The
1325 second sets the optional flag in inbound IPComp SAs only.
1327 - Applied Ulrich Weber's patch which fixes an interoperability
1328 problem between native IPsec and KLIPS systems caused by
1329 setting the replay window to 32 instead of 0 for ipcomp.
1335 - Fixed a bug which caused an unwanted Mode Config request
1336 to be initiated in the case where "right" was used to denote
1337 the local side in ipsec.conf and "left" the remote side,
1338 contrary to the recommendation that "right" be remote and
1345 - updated Vendor ID to strongSwan-2.4.0
1347 - updated copyright statement to include David Buechi and
1354 - strongSwan now communicates with attached smartcards and
1355 USB crypto tokens via the standardized PKCS #11 interface.
1356 By default the OpenSC library from www.opensc.org is used
1357 but any other PKCS#11 library could be dynamically linked.
1358 strongSwan's PKCS#11 API was implemented by David Buechi
1359 and Michael Meier, both graduates of the Zurich University
1360 of Applied Sciences in Winterthur, Switzerland.
1362 - When a %trap eroute is triggered by an outgoing IP packet
1363 then the native IPsec stack of the Linux 2.6 kernel [often/
1364 always?] returns an XFRM_ACQUIRE message with an undefined
1365 protocol family field and the connection setup fails.
1366 As a workaround IPv4 (AF_INET) is now assumed.
1368 - the results of the UML test scenarios are now enhanced
1369 with block diagrams of the virtual network topology used
1370 in a particular test.
1376 - fixed IV used to decrypt informational messages.
1377 This bug was introduced with Mode Config functionality.
1379 - fixed NCP Vendor ID.
1381 - undid one of Ulrich Weber's maximum udp size patches
1382 because it caused a segmentation fault with NAT-ed
1385 - added UML scenarios wildcards and attr-cert which
1386 demonstrate the implementation of IPsec policies based
1387 on wildcard parameters contained in Distinguished Names and
1388 on X.509 attribute certificates, respectively.
1394 - Added basic Mode Config functionality
1396 - Added Mathieu Lafon's patch which upgrades the status of
1397 the NAT-Traversal implementation to RFC 3947.
1399 - The _startklips script now also loads the xfrm4_tunnel
1402 - Added Ulrich Weber's netlink replay window size and
1403 maximum udp size patches.
1405 - UML testing now uses the Linux 2.6.10 UML kernel by default.
1411 - Eric Marchionni and Patrik Rayo, both recent graduates from
1412 the Zuercher Hochschule Winterthur in Switzerland, created a
1413 User-Mode-Linux test setup for strongSwan. For more details
1414 please read the INSTALL and README documents in the testing
1417 - Full support of group attributes based on X.509 attribute
1418 certificates. Attribute certificates can be generated
1419 using the openac facility. For more details see
1423 The group attributes can be used in connection definitions
1424 in order to give IPsec access to specific user groups.
1425 This is done with the new parameter left|rightgroups as in
1427 rightgroups="Research, Sales"
1429 giving access to users possessing the group attributes
1430 Research or Sales, only.
1432 - In Quick Mode clients with subnet mask /32 are now
1433 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
1434 fix rekeying problems with the SafeNet/SoftRemote and NCP
1435 Secure Entry Clients.
1437 - Changed the defaults of the ikelifetime and keylife parameters
1438 to 3h and 1h, respectively. The maximum allowable values are
1439 now both set to 24 h.
1441 - Suppressed notification wars between two IPsec peers that
1442 could e.g. be triggered by incorrect ISAKMP encryption.
1444 - Public RSA keys can now have identical IDs if either the
1445 issuing CA or the serial number is different. The serial
1446 number of a certificate is now shown by the command
1448 ipsec auto --listpubkeys
1454 - Added Tuomo Soini's sourceip feature which allows a strongSwan
1455 roadwarrior to use a fixed Virtual IP (see README section 2.6)
1456 and reduces the well-known four tunnel case on VPN gateways to
1457 a single tunnel definition (see README section 2.4).
1459 - Fixed a bug occuring with NAT-Traversal enabled when the responder
1460 suddenly turns initiator and the initiator cannot find a matching
1461 connection because of the floated IKE port 4500.
1463 - Removed misleading ipsec verify command from barf.
1465 - Running under the native IP stack, ipsec --version now shows
1466 the Linux kernel version (courtesy to the Openswan project).
1472 - Introduced the ipsec auto --listalgs monitoring command which lists
1473 all currently registered IKE and ESP algorithms.
1475 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
1476 is set and the first proposed transform does not match.
1478 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
1479 occuring when a smartcard is present.
1481 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
1483 - Fixed the printing of the notification names (null)
1485 - Applied another of Herbert Xu's Netlink patches.
1491 - Support of Dead Peer Detection. The connection parameter
1493 dpdaction=clear|hold
1495 activates DPD for the given connection.
1497 - The default Opportunistic Encryption (OE) policy groups are not
1498 automatically included anymore. Those wishing to activate OE can include
1499 the policy group with the following statement in ipsec.conf:
1501 include /etc/ipsec.d/examples/oe.conf
1503 The default for [right|left]rsasigkey is now set to %cert.
1505 - strongSwan now has a Vendor ID of its own which can be activated
1506 using the compile option VENDORID
1508 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
1510 - Applied Herbert Xu's patch fixing an ESPINUDP problem
1512 - Applied Herbert Xu's patch setting source/destination port numbers.
1514 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
1515 lost during the migration from SuperFreeS/WAN.
1517 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
1519 - Fixed the unsharing of alg parameters when instantiating group
1526 - Thomas Walpuski made me aware of a potential DoS attack via
1527 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
1528 certificates in Pluto's authority certificate store. This vulnerability
1529 was fixed by establishing trust in CA candidate certificates up to a
1530 trusted root CA prior to insertion into Pluto's chained list.
1532 - replaced the --assign option by the -v option in the auto awk script
1533 in order to make it run with mawk under debian/woody.
1539 - Split of the status information between ipsec auto --status (concise)
1540 and ipsec auto --statusall (verbose). Both commands can be used with
1541 an optional connection selector:
1543 ipsec auto --status[all] <connection_name>
1545 - Added the description of X.509 related features to the ipsec_auto(8)
1548 - Hardened the ASN.1 parser in debug mode, especially the printing
1549 of malformed distinguished names.
1551 - The size of an RSA public key received in a certificate is now restricted to
1553 512 bits <= modulus length <= 8192 bits.
1555 - Fixed the debug mode enumeration.
1561 - Fixed another PKCS#7 vulnerability which could lead to an
1562 endless loop while following the X.509 trust chain.
1568 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
1569 that accepted end certificates having identical issuer and subject
1570 distinguished names in a multi-tier X.509 trust chain.
1576 - Removed all remaining references to ipsec_netlink.h in KLIPS.
1582 - The new "ca" section allows to define the following parameters:
1585 cacert=koolCA.pem # cacert of kool CA
1586 ocspuri=http://ocsp.kool.net:8001 # ocsp server
1587 ldapserver=ldap.kool.net # default ldap server
1588 crluri=http://www.kool.net/kool.crl # crl distribution point
1589 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
1590 auto=add # add, ignore
1592 The ca definitions can be monitored via the command
1594 ipsec auto --listcainfos
1596 - Fixed cosmetic corruption of /proc filesystem by integrating
1597 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
1603 - Added support for the 818043 NAT-Traversal update of Microsoft's
1604 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
1606 - A symbolic link to libcrypto is now added in the kernel sources
1607 during kernel compilation
1609 - Fixed a couple of 64 bit issues (mostly casts to int).
1610 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
1612 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
1613 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
1614 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
1620 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
1621 certificate extension which contains no generalName item) can cause
1622 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
1623 been hardened to make it more robust against malformed ASN.1 objects.
1625 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
1626 Linux 2.6 IPsec stack.
1632 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12
projects / strongswan.git / blob