4 - The new default setting libstrongswan.ecp_x_coordinate_only=yes allows
5 IKEv1 interoperability with MS Windows using the ECP DH groups 19 and 20.
7 - The IKEv1 pluto daemon now supports the AES-CCM and AES-GCM ESP
8 authenticated encryption algorithms.
14 - The new gcrypt plugin provides symmetric cipher, hasher, RNG, Diffie-Hellman
15 and RSA crypto primitives using the LGPL licensed GNU gcrypt library.
17 - libstrongswan features an integrated crypto selftest framework for registered
18 algorithms. The test-vector plugin provides a first set of test vectors and
19 allows pluto and charon to rely on tested crypto algorithms.
21 - pluto can now use all libstrongswan plugins with the exception of x509 and xcbc.
22 Thanks to the openssl plugin, the ECP Diffie-Hellman groups 19, 20, 21, 25, and
23 26 as well as ECDSA-256, ECDSA-384, and ECDSA-521 authentication can be used
26 - Applying their fuzzing tool, the Orange Labs vulnerability research team found
27 another two DoS vulnerabilities, one in the rather old ASN.1 parser of Relative
28 Distinguished Names (RDNs) and a second one in the conversion of ASN.1 UTCTIME
29 and GENERALIZEDTIME strings to a time_t value.
35 - The nm plugin now passes DNS/NBNS server information to NetworkManager,
36 allowing a gateway administrator to set DNS/NBNS configuration on clients
39 - The nm plugin also accepts CA certificates for gateway authentication. If
40 a CA certificate is configured, strongSwan uses the entered gateway address
41 as its idenitity, requiring the gateways certificate to contain the same as
42 subjectAltName. This allows a gateway administrator to deploy the same
43 certificates to Windows 7 and NetworkManager clients.
45 - The command ipsec purgeike deletes IKEv2 SAs that don't have a CHILD SA.
46 The command ipsec down <conn>{n} deletes CHILD SA instance n of connection
47 <conn> whereas ipsec down <conn>{*} deletes all CHILD SA instances.
48 The command ipsec down <conn>[n] deletes IKE SA instance n of connection
49 <conn> plus dependent CHILD SAs whereas ipsec down <conn>[*] deletes all
50 IKE SA instances of connection <conn>.
52 - Fixed a regression introduced in 4.3.0 where EAP authentication calculated
53 the AUTH payload incorrectly. Further, the EAP-MSCHAPv2 MSK key derivation
54 has been updated to be compatible with the Windows 7 Release Candidate.
56 - Refactored installation of triggering policies. Routed policies are handled
57 outside of IKE_SAs to keep them installed in any case. A tunnel gets
58 established only once, even if initiation is delayed due network outages.
60 - Improved the handling of multiple acquire signals triggered by the kernel.
62 - Fixed two DoS vulnerabilities in the charon daemon that were discovered by
63 fuzzing techniques: 1) Sending a malformed IKE_SA_INIT request leaved an
64 incomplete state which caused a null pointer dereference if a subsequent
65 CREATE_CHILD_SA request was sent. 2) Sending an IKE_AUTH request with either
66 a missing TSi or TSr payload caused a null pointer derefence because the
67 checks for TSi and TSr were interchanged. The IKEv2 fuzzer used was
68 developped by the Orange Labs vulnerability research team. The tool was
69 initially written by Gabriel Campana and is now maintained by Laurent Butti.
71 - Added support for AES counter mode in ESP in IKEv2 using the proposal
72 keywords aes128ctr, aes192ctr and aes256ctr.
74 - Further progress in refactoring pluto: Use of the curl and ldap plugins
75 for fetching crls and OCSP. Use of the random plugin to get keying material
76 from /dev/random or /dev/urandom. Use of the openssl plugin as an alternative
77 to the aes, des, sha1, sha2, and md5 plugins. The blowfish, twofish, and
78 serpent encryption plugins are now optional and are not enabled by default.
84 - Support for the IKEv2 Multiple Authentication Exchanges extension (RFC4739).
85 Initiators and responders can use several authentication rounds (e.g. RSA
86 followed by EAP) to authenticate. The new ipsec.conf leftauth/rightauth and
87 leftauth2/rightauth2 parameters define own authentication rounds or setup
88 constraints for the remote peer. See the ipsec.conf man page for more detials.
90 - If glibc printf hooks (register_printf_function) are not available,
91 strongSwan can use the vstr string library to run on non-glibc systems.
93 - The IKEv2 charon daemon can now configure the ESP CAMELLIA-CBC cipher
94 (esp=camellia128|192|256).
96 - Refactored the pluto and scepclient code to use basic functions (memory
97 allocation, leak detective, chunk handling, printf_hooks, strongswan.conf
98 attributes, ASN.1 parser, etc.) from the libstrongswan library.
100 - Up to two DNS and WINS servers to be sent via IKEv1 ModeConfig can be
101 configured in the pluto section of strongswan.conf.
107 - The new server-side EAP RADIUS plugin (--enable-eap-radius)
108 relays EAP messages to and from a RADIUS server. Succesfully
109 tested with with a freeradius server using EAP-MD5 and EAP-SIM.
111 - A vulnerability in the Dead Peer Detection (RFC 3706) code was found by
112 Gerd v. Egidy <gerd.von.egidy@intra2net.com> of Intra2net AG affecting
113 all Openswan and strongSwan releases. A malicious (or expired ISAKMP)
114 R_U_THERE or R_U_THERE_ACK Dead Peer Detection packet can cause the
115 pluto IKE daemon to crash and restart. No authentication or encryption
116 is required to trigger this bug. One spoofed UDP packet can cause the
117 pluto IKE daemon to restart and be unresponsive for a few seconds while
118 restarting. This DPD null state vulnerability has been officially
119 registered as CVE-2009-0790 and is fixed by this release.
121 - ASN.1 to time_t conversion caused a time wrap-around for
122 dates after Jan 18 03:14:07 UTC 2038 on 32-bit platforms.
123 As a workaround such dates are set to the maximum representable
124 time, i.e. Jan 19 03:14:07 UTC 2038.
126 - Distinguished Names containing wildcards (*) are not sent in the
133 - Fixed a use-after-free bug in the DPD timeout section of the
134 IKEv1 pluto daemon which sporadically caused a segfault.
136 - Fixed a crash in the IKEv2 charon daemon occuring with
137 mixed RAM-based and SQL-based virtual IP address pools.
139 - Fixed ASN.1 parsing of algorithmIdentifier objects where the
140 parameters field is optional.
142 - Ported nm plugin to NetworkManager 7.1.
148 - Support of the EAP-MSCHAPv2 protocol enabled by the option
149 --enable-eap-mschapv2. Requires the MD4 hash algorithm enabled
150 either by --enable-md4 or --enable-openssl.
152 - Assignment of up to two DNS and up to two WINS servers to peers via
153 the IKEv2 Configuration Payload (CP). The IPv4 or IPv6 nameserver
154 addresses are defined in strongswan.conf.
156 - The strongSwan applet for the Gnome NetworkManager is now built and
157 distributed as a separate tarball under the name NetworkManager-strongswan.
163 - Fixed ESP NULL encryption broken by the refactoring of keymat.c.
164 Also introduced proper initialization and disposal of keying material.
166 - Fixed the missing listing of connection definitions in ipsec statusall
167 broken by an unfortunate local variable overload.
173 - Several performance improvements to handle thousands of tunnels with almost
174 linear upscaling. All relevant data structures have been replaced by faster
175 counterparts with better lookup times.
177 - Better parallelization to run charon on multiple cores. Due to improved
178 ressource locking and other optimizations the daemon can take full
179 advantage of 16 or even more cores.
181 - The load-tester plugin can use a NULL Diffie-Hellman group and simulate
182 unique identities and certificates by signing peer certificates using a CA
185 - The redesigned stroke in-memory IP pool handles leases. The "ipsec leases"
186 command queries assigned leases.
188 - Added support for smartcards in charon by using the ENGINE API provided by
189 OpenSSL, based on patches by Michael Roßberg.
191 - The Padlock plugin supports the hardware RNG found on VIA CPUs to provide a
192 reliable source of randomness.
197 - Flexible configuration of logging subsystem allowing to log to multiple
198 syslog facilities or to files using fine-grained log levels for each target.
200 - Load testing plugin to do stress testing of the IKEv2 daemon against self
201 or another host. Found and fixed issues during tests in the multi-threaded
202 use of the OpenSSL plugin.
204 - Added profiling code to synchronization primitives to find bottlenecks if
205 running on multiple cores. Found and fixed an issue where parts of the
206 Diffie-Hellman calculation acquired an exclusive lock. This greatly improves
207 parallelization to multiple cores.
209 - updown script invocation has been separated into a plugin of its own to
210 further slim down the daemon core.
212 - Separated IKE_SA/CHILD_SA key derivation process into a closed system,
213 allowing future implementations to use a secured environment in e.g. kernel
216 - The kernel interface of charon has been modularized. XFRM NETLINK (default)
217 and PFKEY (--enable-kernel-pfkey) interface plugins for the native IPsec
218 stack of the Linux 2.6 kernel as well as a PFKEY interface for the KLIPS
219 IPsec stack (--enable-kernel-klips) are provided.
221 - Basic Mobile IPv6 support has been introduced, securing Binding Update
222 messages as well as tunneled traffic between Mobile Node and Home Agent.
223 The installpolicy=no option allows peaceful cooperation with a dominant
224 mip6d daemon and the new type=transport_proxy implements the special MIPv6
225 IPsec transport proxy mode where the IKEv2 daemon uses the Care-of-Address
226 but the IPsec SA is set up for the Home Adress.
228 - Implemented migration of Mobile IPv6 connections using the KMADDRESS
229 field contained in XFRM_MSG_MIGRATE messages sent by the mip6d daemon
230 via the Linux 2.6.28 (or appropriately patched) kernel.
236 - IKEv2 charon daemon supports authentication based on raw public keys
237 stored in the SQL database backend. The ipsec listpubkeys command
238 lists the available raw public keys via the stroke interface.
240 - Several MOBIKE improvements: Detect changes in NAT mappings in DPD exchanges,
241 handle events if kernel detects NAT mapping changes in UDP-encapsulated
242 ESP packets (requires kernel patch), reuse old addesses in MOBIKE updates as
243 long as possible and other fixes.
245 - Fixed a bug in addr_in_subnet() which caused insertion of wrong source
246 routes for destination subnets having netwmasks not being a multiple of 8 bits.
247 Thanks go to Wolfgang Steudel, TU Ilmenau for reporting this bug.
253 - Fixed a Denial-of-Service vulnerability where an IKE_SA_INIT message with
254 a KE payload containing zeroes only can cause a crash of the IKEv2 charon
255 daemon due to a NULL pointer returned by the mpz_export() function of the
256 GNU Multiprecision Library (GMP). Thanks go to Mu Dynamics Research Labs
257 for making us aware of this problem.
259 - The new agent plugin provides a private key implementation on top of an
262 - The NetworkManager plugin has been extended to support certificate client
263 authentication using RSA keys loaded from a file or using ssh-agent.
265 - Daemon capability dropping has been ported to libcap and must be enabled
266 explicitly --with-capabilities=libcap. Future version will support the
267 newer libcap2 library.
269 - ipsec listalgs lists the IKEv2 cryptografic algorithms registered with the
270 charon keying daemon.
276 - A NetworkManager plugin allows GUI-based configuration of road-warrior
277 clients in a simple way. It features X509 based gateway authentication
278 and EAP client authentication, tunnel setup/teardown and storing passwords
279 in the Gnome Keyring.
281 - A new EAP-GTC plugin implements draft-sheffer-ikev2-gtc-00.txt and allows
282 username/password authentication against any PAM service on the gateway.
283 The new EAP method interacts nicely with the NetworkManager plugin and allows
284 client authentication against e.g. LDAP.
286 - Improved support for the EAP-Identity method. The new ipsec.conf eap_identity
287 parameter defines an additional identity to pass to the server in EAP
290 - The "ipsec statusall" command now lists CA restrictions, EAP
291 authentication types and EAP identities.
293 - Fixed two multithreading deadlocks occurring when starting up
294 several hundred tunnels concurrently.
296 - Fixed the --enable-integrity-test configure option which
297 computes a SHA-1 checksum over the libstrongswan library.
303 - Consistent logging of IKE and CHILD SAs at the audit (AUD) level.
305 - Improved the performance of the SQL-based virtual IP address pool
306 by introducing an additional addresses table. The leases table
307 storing only history information has become optional and can be
308 disabled by setting charon.plugins.sql.lease_history = no in
311 - The XFRM_STATE_AF_UNSPEC flag added to xfrm.h allows IPv4-over-IPv6
312 and IPv6-over-IPv4 tunnels with the 2.6.26 and later Linux kernels.
314 - management of different virtual IP pools for different
315 network interfaces have become possible.
317 - fixed a bug which prevented the assignment of more than 256
318 virtual IP addresses from a pool managed by an sql database.
320 - fixed a bug which did not delete own IPCOMP SAs in the kernel.
326 - Added statistics functions to ipsec pool --status and ipsec pool --leases
327 and input validation checks to various ipsec pool commands.
329 - ipsec statusall now lists all loaded charon plugins and displays
330 the negotiated IKEv2 cipher suite proposals.
332 - The openssl plugin supports the elliptic curve Diffie-Hellman groups
333 19, 20, 21, 25, and 26.
335 - The openssl plugin supports ECDSA authentication using elliptic curve
338 - Fixed a bug in stroke which caused multiple charon threads to close
339 the file descriptors during packet transfers over the stroke socket.
341 - ESP sequence numbers are now migrated in IPsec SA updates handled by
342 MOBIKE. Works only with Linux kernels >= 2.6.17.
348 - Fixed the strongswan.conf path configuration problem that occurred when
349 --sysconfig was not set explicitly in ./configure.
351 - Fixed a number of minor bugs that where discovered during the 4th
352 IKEv2 interoperability workshop in San Antonio, TX.
358 - Plugins for libstrongswan and charon can optionally be loaded according
359 to a configuration in strongswan.conf. Most components provide a
360 "load = " option followed by a space separated list of plugins to load.
361 This allows e.g. the fallback from a hardware crypto accelerator to
362 to software-based crypto plugins.
364 - Charons SQL plugin has been extended by a virtual IP address pool.
365 Configurations with a rightsourceip=%poolname setting query a SQLite or
366 MySQL database for leases. The "ipsec pool" command helps in administrating
367 the pool database. See ipsec pool --help for the available options
369 - The Authenticated Encryption Algorithms AES-CCM-8/12/16 and AES-GCM-8/12/16
370 for ESP are now supported starting with the Linux 2.6.25 kernel. The
371 syntax is e.g. esp=aes128ccm12 or esp=aes256gcm16.
377 - Support for "Hash and URL" encoded certificate payloads has been implemented
378 in the IKEv2 daemon charon. Using the "certuribase" option of a CA section
379 allows to assign a base URL to all certificates issued by the specified CA.
380 The final URL is then built by concatenating that base and the hex encoded
381 SHA1 hash of the DER encoded certificate. Note that this feature is disabled
382 by default and must be enabled using the option "charon.hash_and_url".
384 - The IKEv2 daemon charon now supports the "uniqueids" option to close multiple
385 IKE_SAs with the same peer. The option value "keep" prefers existing
386 connection setups over new ones, where the value "replace" replaces existing
389 - The crypto factory in libstrongswan additionaly supports random number
390 generators, plugins may provide other sources of randomness. The default
391 plugin reads raw random data from /dev/(u)random.
393 - Extended the credential framework by a caching option to allow plugins
394 persistent caching of fetched credentials. The "cachecrl" option has been
397 - The new trustchain verification introduced in 4.2.0 has been parallelized.
398 Threads fetching CRL or OCSP information no longer block other threads.
400 - A new IKEv2 configuration attribute framework has been introduced allowing
401 plugins to provide virtual IP addresses, and in the future, other
402 configuration attribute services (e.g. DNS/WINS servers).
404 - The stroke plugin has been extended to provide virtual IP addresses from
405 a pool defined in ipsec.conf. The "rightsourceip" parameter now accepts
406 address pools in CIDR notation (e.g. 10.1.1.0/24). The parameter also accepts
407 the value "%poolname", where "poolname" identifies a pool provided by a
410 - Fixed compilation on uClibc and a couple of other minor bugs.
412 - Set DPD defaults in ipsec starter to dpd_delay=30s and dpd_timeout=150s.
414 - The IKEv1 pluto daemon now supports the ESP encryption algorithm CAMELLIA
415 with key lengths of 128, 192, and 256 bits, as well as the authentication
416 algorithm AES_XCBC_MAC. Configuration example: esp=camellia192-aesxcbc.
422 - libstrongswan has been modularized to attach crypto algorithms,
423 credential implementations (keys, certificates) and fetchers dynamically
424 through plugins. Existing code has been ported to plugins:
425 - RSA/Diffie-Hellman implementation using the GNU Multi Precision library
426 - X509 certificate system supporting CRLs, OCSP and attribute certificates
427 - Multiple plugins providing crypto algorithms in software
428 - CURL and OpenLDAP fetcher
430 - libstrongswan gained a relational database API which uses pluggable database
431 providers. Plugins for MySQL and SQLite are available.
433 - The IKEv2 keying daemon charon is more extensible. Generic plugins may provide
434 connection configuration, credentials and EAP methods or control the daemon.
435 Existing code has been ported to plugins:
436 - EAP-AKA, EAP-SIM, EAP-MD5 and EAP-Identity
437 - stroke configuration, credential and control (compatible to pluto)
438 - XML bases management protocol to control and query the daemon
439 The following new plugins are available:
440 - An experimental SQL configuration, credential and logging plugin on
441 top of either MySQL or SQLite
442 - A unit testing plugin to run tests at daemon startup
444 - The authentication and credential framework in charon has been heavily
445 refactored to support modular credential providers, proper
446 CERTREQ/CERT payload exchanges and extensible authorization rules.
448 - The framework of strongSwan Manager has envolved to the web application
449 framework libfast (FastCGI Application Server w/ Templates) and is usable
450 by other applications.
456 - IKE rekeying in NAT situations did not inherit the NAT conditions
457 to the rekeyed IKE_SA so that the UDP encapsulation was lost with
458 the next CHILD_SA rekeying.
460 - Wrong type definition of the next_payload variable in id_payload.c
461 caused an INVALID_SYNTAX error on PowerPC platforms.
463 - Implemented IKEv2 EAP-SIM server and client test modules that use
464 triplets stored in a file. For details on the configuration see
465 the scenario 'ikev2/rw-eap-sim-rsa'.
471 - Fixed error in the ordering of the certinfo_t records in the ocsp cache that
472 caused multiple entries of the same serial number to be created.
474 - Implementation of a simple EAP-MD5 module which provides CHAP
475 authentication. This may be interesting in conjunction with certificate
476 based server authentication, as weak passwords can't be brute forced
477 (in contradiction to traditional IKEv2 PSK).
479 - A complete software based implementation of EAP-AKA, using algorithms
480 specified in 3GPP2 (S.S0055). This implementation does not use an USIM,
481 but reads the secrets from ipsec.secrets. Make sure to read eap_aka.h
484 - Support for vendor specific EAP methods using Expanded EAP types. The
485 interface to EAP modules has been slightly changed, so make sure to
486 check the changes if you're already rolling your own modules.
492 - The default _updown script now dynamically inserts and removes ip6tables
493 firewall rules if leftfirewall=yes is set in IPv6 connections. New IPv6
494 net-net and roadwarrior (PSK/RSA) scenarios for both IKEv1 and IKEV2 were
497 - Implemented RFC4478 repeated authentication to force EAP/Virtual-IP clients
498 to reestablish an IKE_SA within a given timeframe.
500 - strongSwan Manager supports configuration listing, initiation and termination
501 of IKE and CHILD_SAs.
503 - Fixes and improvements to multithreading code.
505 - IKEv2 plugins have been renamed to libcharon-* to avoid naming conflicts.
506 Make sure to remove the old plugins in $libexecdir/ipsec, otherwise they get
513 - Removed recursive pthread mutexes since uClibc doesn't support them.
519 - In NAT traversal situations and multiple queued Quick Modes,
520 those pending connections inserted by auto=start after the
521 port floating from 500 to 4500 were erronously deleted.
523 - Added a "forceencaps" connection parameter to enforce UDP encapsulation
524 to surmount restrictive firewalls. NAT detection payloads are faked to
525 simulate a NAT situation and trick the other peer into NAT mode (IKEv2 only).
527 - Preview of strongSwan Manager, a web based configuration and monitoring
528 application. It uses a new XML control interface to query the IKEv2 daemon
529 (see http://trac.strongswan.org/wiki/Manager).
531 - Experimental SQLite configuration backend which will provide the configuration
532 interface for strongSwan Manager in future releases.
534 - Further improvements to MOBIKE support.
540 - Since some third party IKEv2 implementations run into
541 problems with strongSwan announcing MOBIKE capability per
542 default, MOBIKE can be disabled on a per-connection-basis
543 using the mobike=no option. Whereas mobike=no disables the
544 sending of the MOBIKE_SUPPORTED notification and the floating
545 to UDP port 4500 with the IKE_AUTH request even if no NAT
546 situation has been detected, strongSwan will still support
547 MOBIKE acting as a responder.
549 - the default ipsec routing table plus its corresponding priority
550 used for inserting source routes has been changed from 100 to 220.
551 It can be configured using the --with-ipsec-routing-table and
552 --with-ipsec-routing-table-prio options.
554 - the --enable-integrity-test configure option tests the
555 integrity of the libstrongswan crypto code during the charon
558 - the --disable-xauth-vid configure option disables the sending
559 of the XAUTH vendor ID. This can be used as a workaround when
560 interoperating with some Windows VPN clients that get into
561 trouble upon reception of an XAUTH VID without eXtended
562 AUTHentication having been configured.
564 - ipsec stroke now supports the rereadsecrets, rereadaacerts,
565 rereadacerts, and listacerts options.
571 - If a DNS lookup failure occurs when resolving right=%<FQDN>
572 or right=<FQDN> combined with rightallowany=yes then the
573 connection is not updated by ipsec starter thus preventing
574 the disruption of an active IPsec connection. Only if the DNS
575 lookup successfully returns with a changed IP address the
576 corresponding connection definition is updated.
578 - Routes installed by the keying daemons are now in a separate
579 routing table with the ID 100 to avoid conflicts with the main
580 table. Route lookup for IKEv2 traffic is done in userspace to ignore
581 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
587 - The pluto IKEv1 daemon now exhibits the same behaviour as its
588 IKEv2 companion charon by inserting an explicit route via the
589 _updown script only if a sourceip exists. This is admissible
590 since routing through the IPsec tunnel is handled automatically
591 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
592 parameter is not required any more.
594 - The new IKEv1 parameter right|leftallowany parameters helps to handle
595 the case where both peers possess dynamic IP addresses that are
596 usually resolved using DynDNS or a similar service. The configuration
601 can be used by the initiator to start up a connection to a peer
602 by resolving peer.foo.bar into the currently allocated IP address.
603 Thanks to the rightallowany flag the connection behaves later on
608 so that the peer can rekey the connection as an initiator when his
609 IP address changes. An alternative notation is
613 which will implicitly set rightallowany=yes.
615 - ipsec starter now fails more gracefully in the presence of parsing
616 errors. Flawed ca and conn section are discarded and pluto is started
617 if non-fatal errors only were encountered. If right=%peer.foo.bar
618 cannot be resolved by DNS then right=%any will be used so that passive
619 connections as a responder are still possible.
621 - The new pkcs11initargs parameter that can be placed in the
622 setup config section of /etc/ipsec.conf allows the definition
623 of an argument string that is used with the PKCS#11 C_Initialize()
624 function. This non-standard feature is required by the NSS softoken
625 library. This patch was contributed by Robert Varga.
627 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
628 which caused a segmentation fault in the presence of unknown
629 or misspelt keywords in ipsec.conf. This bug fix was contributed
632 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
633 address configuration changes and updates IKE and IPsec SAs dynamically.
639 - IKEv2 peer configuration selection now can be based on a given
640 certification authority using the rightca= statement.
642 - IKEv2 authentication based on RSA signatures now can handle multiple
643 certificates issued for a given peer ID. This allows a smooth transition
644 in the case of a peer certificate renewal.
646 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
647 client and returning requested virtual IPs using rightsourceip=%config
648 on the server. If the server does not support configuration payloads, the
649 client enforces its leftsourceip parameter.
651 - The ./configure options --with-uid/--with-gid allow pluto and charon
652 to drop their privileges to a minimum and change to an other UID/GID. This
653 improves the systems security, as a possible intruder may only get the
654 CAP_NET_ADMIN capability.
656 - Further modularization of charon: Pluggable control interface and
657 configuration backend modules provide extensibility. The control interface
658 for stroke is included, and further interfaces using DBUS (NetworkManager)
659 or XML are on the way. A backend for storing configurations in the daemon
660 is provided and more advanced backends (using e.g. a database) are trivial
663 - Fixed a compilation failure in libfreeswan occuring with Linux kernel
670 - Support for an additional Diffie-Hellman exchange when creating/rekeying
671 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
672 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
673 is implemented properly for rekeying.
675 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
676 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
678 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
680 - Added support for EAP modules which do not establish an MSK.
682 - Removed the dependencies from the /usr/include/linux/ headers by
683 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
685 - crlNumber is now listed by ipsec listcrls
687 - The xauth_modules.verify_secret() function now passes the
694 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
695 cookies are enabled and protect against DoS attacks with faked source
696 addresses. Number of IKE_SAs in CONNECTING state is also limited per
697 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
698 compared to properly detect retransmissions and incoming retransmits are
699 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
701 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
702 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
703 enabled by cachecrls=yes.
705 - Added the configuration options --enable-nat-transport which enables
706 the potentially insecure NAT traversal for IPsec transport mode and
707 --disable-vendor-id which disables the sending of the strongSwan
710 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
711 a segmentation fault if a malformed payload was detected in the
712 IKE MR2 message and pluto tried to send an encrypted notification
715 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
716 with Windows 2003 Server which uses a wrong VID hash.
722 - Support of SHA2_384 hash function for protecting IKEv1
723 negotiations and support of SHA2 signatures in X.509 certificates.
725 - Fixed a serious bug in the computation of the SHA2-512 HMAC
726 function. Introduced automatic self-test of all IKEv1 hash
727 and hmac functions during pluto startup. Failure of a self-test
728 currently issues a warning only but does not exit pluto [yet].
730 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
732 - Full support of CA information sections. ipsec listcainfos
733 now shows all collected crlDistributionPoints and OCSP
736 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
737 This feature requires the HTTP fetching capabilities of the libcurl
738 library which must be enabled by setting the --enable-http configure
741 - Refactored core of the IKEv2 message processing code, allowing better
742 code reuse and separation.
744 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
745 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
746 by the requestor and installed in a resolv.conf file.
748 - The IKEv2 daemon charon installs a route for each IPsec policy to use
749 the correct source address even if an application does not explicitly
752 - Integrated the EAP framework into charon which loads pluggable EAP library
753 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
754 on the client side, while the "eap" parameter on the server side defines
755 the EAP method to use for client authentication.
756 A generic client side EAP-Identity module and an EAP-SIM authentication
757 module using a third party card reader implementation are included.
759 - Added client side support for cookies.
761 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
762 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
763 fixes to enhance interoperability with other implementations.
769 - strongSwan now interoperates with the NCP Secure Entry Client,
770 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
771 XAUTH and Mode Config.
773 - UNITY attributes are now recognized and UNITY_BANNER is set
780 - IKEv1: Support for extended authentication (XAUTH) in combination
781 with ISAKMP Main Mode RSA or PSK authentication. Both client and
782 server side were implemented. Handling of user credentials can
783 be done by a run-time loadable XAUTH module. By default user
784 credentials are stored in ipsec.secrets.
786 - IKEv2: Support for reauthentication when rekeying
788 - IKEv2: Support for transport mode
790 - fixed a lot of bugs related to byte order
792 - various other bugfixes
798 - IKEv1: Implementation of ModeConfig push mode via the new connection
799 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
801 - IKEv1: The command ipsec statusall now shows "DPD active" for all
802 ISAKMP SAs that are under active Dead Peer Detection control.
804 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
805 Instead of logger, special printf() functions are used to directly
806 print objects like hosts (%H) identifications (%D), certificates (%Q),
807 etc. The number of debugging levels have been reduced to:
809 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
811 The debugging levels can either be specified statically in ipsec.conf as
814 charondebug="lib 1, cfg 3, net 2"
816 or changed at runtime via stroke as
818 ipsec stroke loglevel cfg 2
824 - Implemented full support for IPv6-in-IPv6 tunnels.
826 - Added configuration options for dead peer detection in IKEv2. dpd_action
827 types "clear", "hold" and "restart" are supported. The dpd_timeout
828 value is not used, as the normal retransmission policy applies to
829 detect dead peers. The dpd_delay parameter enables sending of empty
830 informational message to detect dead peers in case of inactivity.
832 - Added support for preshared keys in IKEv2. PSK keys configured in
833 ipsec.secrets are loaded. The authby parameter specifies the authentication
834 method to authentificate ourself, the other peer may use PSK or RSA.
836 - Changed retransmission policy to respect the keyingtries parameter.
838 - Added private key decryption. PEM keys encrypted with AES-128/192/256
839 or 3DES are supported.
841 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
844 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
845 signed with such a hash algorithm.
847 - Added initial support for updown scripts. The actions up-host/client and
848 down-host/client are executed. The leftfirewall=yes parameter
849 uses the default updown script to insert dynamic firewall rules, a custom
850 updown script may be specified with the leftupdown parameter.
856 - Added support for the auto=route ipsec.conf parameter and the
857 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
858 CHILD_SAs dynamically on demand when traffic is detected by the
861 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
862 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
863 new keys are generated using perfect forward secrecy. An optional flag
864 which enforces reauthentication will be implemented later.
866 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
867 algorithm configuration statements.
873 - Full X.509 certificate trust chain verification has been implemented.
874 End entity certificates can be exchanged via CERT payloads. The current
875 default is leftsendcert=always, since CERTREQ payloads are not supported
876 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
878 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
879 would offer more possibilities for traffic selection, but the Linux kernel
880 currently does not support it. That's why we stick with these simple
881 ipsec.conf rules for now.
883 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
884 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
887 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
888 notify payloads to detect NAT routers between the peers. It switches
889 to port 4500, uses UDP encapsulated ESP packets, handles peer address
890 changes gracefully and sends keep alive message periodically.
892 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
893 rekeying, more shared code, cleaner design, proper retransmission
894 and a more extensible code base.
896 - The mixed PSK/RSA roadwarrior detection capability introduced by the
897 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
898 payloads by the responder right before any defined IKE Main Mode state had
899 been established. Although any form of bad proposal syntax was being correctly
900 detected by the payload parser, the subsequent error handler didn't check
901 the state pointer before logging current state information, causing an
902 immediate crash of the pluto keying daemon due to a NULL pointer.
908 - Added algorithm selection to charon: New default algorithms for
909 ike=aes128-sha-modp2048, as both daemons support it. The default
910 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
911 the ike/esp parameter the same way as pluto. As this syntax does
912 not allow specification of a pseudo random function, the same
913 algorithm as for integrity is used (currently sha/md5). Supported
915 Encryption: aes128, aes192, aes256
916 Integrity/PRF: md5, sha (using hmac)
917 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
919 Encryption: aes128, aes192, aes256, 3des, blowfish128,
920 blowfish192, blowfish256
922 More IKE encryption algorithms will come after porting libcrypto into
925 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
926 perfect forward secrecy is used. The rekeying parameters rekey,
927 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
928 when using IKEv2. WARNING: charon currently is unable to handle
929 simultaneous rekeying. To avoid such a situation, use a large
930 rekeyfuzz, or even better, set rekey=no on one peer.
932 - support for host2host, net2net, host2net (roadwarrior) tunnels
933 using predefined RSA certificates (see uml scenarios for
934 configuration examples).
936 - new build environment featuring autotools. Features such
937 as HTTP, LDAP and smartcard support may be enabled using
938 the ./configure script. Changing install directories
939 is possible, too. See ./configure --help for more details.
941 - better integration of charon with ipsec starter, which allows
942 (almost) transparent operation with both daemons. charon
943 handles ipsec commands up, down, status, statusall, listall,
944 listcerts and allows proper load, reload and delete of connections
951 - initial support of the IKEv2 protocol. Connections in
952 ipsec.conf designated by keyexchange=ikev2 are negotiated
953 by the new IKEv2 charon keying daemon whereas those marked
954 by keyexchange=ikev1 or the default keyexchange=ike are
955 handled thy the IKEv1 pluto keying daemon. Currently only
956 a limited subset of functions are available with IKEv2
957 (Default AES encryption, authentication based on locally
958 imported X.509 certificates, unencrypted private RSA keys
959 in PKCS#1 file format, limited functionality of the ipsec
966 - the dynamic iptables rules from the _updown_x509 template
967 for KLIPS and the _updown_policy template for NETKEY have
968 been merged into the default _updown script. The existing
969 left|rightfirewall keyword causes the automatic insertion
970 and deletion of ACCEPT rules for tunneled traffic upon
971 the successful setup and teardown of an IPsec SA, respectively.
972 left|rightfirwall can be used with KLIPS under any Linux 2.4
973 kernel or with NETKEY under a Linux kernel version >= 2.6.16
974 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
975 kernel version < 2.6.16 which does not support IPsec policy
976 matching yet, please continue to use a copy of the _updown_espmark
977 template loaded via the left|rightupdown keyword.
979 - a new left|righthostaccess keyword has been introduced which
980 can be used in conjunction with left|rightfirewall and the
981 default _updown script. By default leftfirewall=yes inserts
982 a bi-directional iptables FORWARD rule for a local client network
983 with a netmask different from 255.255.255.255 (single host).
984 This does not allow to access the VPN gateway host via its
985 internal network interface which is part of the client subnet
986 because an iptables INPUT and OUTPUT rule would be required.
987 lefthostaccess=yes will cause this additional ACCEPT rules to
990 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
991 payload is preparsed in order to find out whether the roadwarrior
992 requests PSK or RSA so that a matching connection candidate can
999 - the new _updown_policy template allows ipsec policy based
1000 iptables firewall rules. Required are iptables version
1001 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
1002 the _updown_espmark template, so that no INPUT mangle rules
1003 are required any more.
1005 - added support of DPD restart mode
1007 - ipsec starter now allows the use of wildcards in include
1008 statements as e.g. in "include /etc/my_ipsec/*.conf".
1009 Patch courtesy of Matthias Haas.
1011 - the Netscape OID 'employeeNumber' is now recognized and can be
1012 used as a Relative Distinguished Name in certificates.
1018 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
1019 command and not of ipsec setup any more.
1021 - ipsec starter now supports AH authentication in conjunction with
1022 ESP encryption. AH authentication is configured in ipsec.conf
1023 via the auth=ah parameter.
1025 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
1026 ipsec whack --scencrypt|scdecrypt <args>.
1028 - get_sa_info() now determines for the native netkey IPsec stack
1029 the exact time of the last use of an active eroute. This information
1030 is used by the Dead Peer Detection algorithm and is also displayed by
1031 the ipsec status command.
1037 - running under the native Linux 2.6 IPsec stack, the function
1038 get_sa_info() is called by ipsec auto --status to display the current
1039 number of transmitted bytes per IPsec SA.
1041 - get_sa_info() is also used by the Dead Peer Detection process to detect
1042 recent ESP activity. If ESP traffic was received from the peer within
1043 the last dpd_delay interval then no R_Y_THERE notification must be sent.
1045 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
1046 in ID_DER_ASN1_DN identities. The following notations are possible:
1048 rightid="unstructuredName=John Doe"
1049 rightid="UN=John Doe"
1051 - fixed a long-standing bug which caused PSK-based roadwarrior connections
1052 to segfault in the function id.c:same_id() called by keys.c:get_secret()
1053 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
1060 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
1062 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
1064 - in order to guarantee backwards-compatibility with the script-based
1065 auto function (e.g. auto --replace), the ipsec starter scripts stores
1066 the defaultroute information in the temporary file /var/run/ipsec.info.
1068 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
1069 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
1072 - the ipsec starter now also recognizes the parameters authby=never and
1073 type=passthrough|pass|drop|reject.
1079 - ipsec starter now supports the also parameter which allows
1080 a modular structure of the connection definitions. Thus
1081 "ipsec start" is now ready to replace "ipsec setup".
1087 - Mathieu Lafon's popular ipsec starter tool has been added to the
1088 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
1089 for his integration work. ipsec starter is a C program which is going
1090 to replace the various shell and awk starter scripts (setup, _plutoload,
1091 _plutostart, _realsetup, _startklips, _confread, and auto). Since
1092 ipsec.conf is now parsed only once, the starting of multiple tunnels is
1093 accelerated tremedously.
1095 - Added support of %defaultroute to the ipsec starter. If the IP address
1096 changes, a HUP signal to the ipsec starter will automatically
1097 reload pluto's connections.
1099 - moved most compile time configurations from pluto/Makefile to
1100 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
1101 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
1103 - removed the ipsec verify and ipsec newhostkey commands
1105 - fixed some 64-bit issues in formatted print statements
1107 - The scepclient functionality implementing the Simple Certificate
1108 Enrollment Protocol (SCEP) is nearly complete but hasn't been
1115 - CA certicates are now automatically loaded from a smartcard
1116 or USB crypto token and appear in the ipsec auto --listcacerts
1123 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
1124 library that does not support the C_Encrypt() Cryptoki
1125 function (e.g. OpenSC), the RSA encryption is done in
1126 software using the public key fetched from the smartcard.
1128 - The scepclient function now allows to define the
1129 validity of a self-signed certificate using the --days,
1130 --startdate, and --enddate options. The default validity
1131 has been changed from one year to five years.
1137 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
1138 interface to other applications for RSA encryption and decryption
1139 via the whack interface. Notation:
1141 ipsec whack --scencrypt <data>
1142 [--inbase 16|hex|64|base64|256|text|ascii]
1143 [--outbase 16|hex|64|base64|256|text|ascii]
1146 ipsec whack --scdecrypt <data>
1147 [--inbase 16|hex|64|base64|256|text|ascii]
1148 [--outbase 16|hex|64|base64|256|text|ascii]
1151 The default setting for inbase and outbase is hex.
1153 The new proxy interface can be used for securing symmetric
1154 encryption keys required by the cryptoloop or dm-crypt
1155 disk encryption schemes, especially in the case when
1156 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
1159 - if the file /etc/ipsec.secrets is lacking during the startup of
1160 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
1161 containing a 2048 bit RSA private key and a matching self-signed
1162 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
1163 is automatically generated by calling the function
1165 ipsec scepclient --out pkcs1 --out cert-self
1167 scepclient was written by Jan Hutter and Martin Willi, students
1168 at the University of Applied Sciences in Rapperswil, Switzerland.
1174 - the current extension of the PKCS#7 framework introduced
1175 a parsing error in PKCS#7 wrapped X.509 certificates that are
1176 e.g. transmitted by Windows XP when multi-level CAs are used.
1177 the parsing syntax has been fixed.
1179 - added a patch by Gerald Richter which tolerates multiple occurrences
1180 of the ipsec0 interface when using KLIPS.
1186 - with gawk-3.1.4 the word "default2 has become a protected
1187 keyword for use in switch statements and cannot be used any
1188 more in the strongSwan scripts. This problem has been
1189 solved by renaming "default" to "defaults" and "setdefault"
1190 in the scripts _confread and auto, respectively.
1192 - introduced the parameter leftsendcert with the values
1194 always|yes (the default, always send a cert)
1195 ifasked (send the cert only upon a cert request)
1196 never|no (never send a cert, used for raw RSA keys and
1199 - fixed the initialization of the ESP key length to a default of
1200 128 bits in the case that the peer does not send a key length
1201 attribute for AES encryption.
1203 - applied Herbert Xu's uniqueIDs patch
1205 - applied Herbert Xu's CLOEXEC patches
1211 - CRLs can now be cached also in the case when the issuer's
1212 certificate does not contain a subjectKeyIdentifier field.
1213 In that case the subjectKeyIdentifier is computed by pluto as the
1214 160 bit SHA-1 hash of the issuer's public key in compliance
1215 with section 4.2.1.2 of RFC 3280.
1217 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
1218 not only multiple Quick Modes of a given connection but also
1219 multiple connections between two security gateways.
1225 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
1226 installed either by setting auto=route in ipsec.conf or by
1227 a connection put into hold, generates an XFRM_AQUIRE event
1228 for each packet that wants to use the not-yet exisiting
1229 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
1230 the Quick Mode queue, causing multiple IPsec SA to be
1231 established in rapid succession. Starting with strongswan-2.5.1
1232 only a single IPsec SA is established per host-pair connection.
1234 - Right after loading the PKCS#11 module, all smartcard slots are
1235 searched for certificates. The result can be viewed using
1238 ipsec auto --listcards
1240 The certificate objects found in the slots are numbered
1241 starting with #1, #2, etc. This position number can be used to address
1242 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
1243 in ipsec.conf and ipsec.secrets, respectively:
1245 %smartcard (selects object #1)
1246 %smartcard#1 (selects object #1)
1247 %smartcard#3 (selects object #3)
1249 As an alternative the existing retrieval scheme can be used:
1251 %smartcard:45 (selects object with id=45)
1252 %smartcard0 (selects first object in slot 0)
1253 %smartcard4:45 (selects object in slot 4 with id=45)
1255 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
1256 private key flags either C_Sign() or C_Decrypt() is used
1257 to generate a signature.
1259 - The output buffer length parameter siglen in C_Sign()
1260 is now initialized to the actual size of the output
1261 buffer prior to the function call. This fixes the
1262 CKR_BUFFER_TOO_SMALL error that could occur when using
1263 the OpenSC PKCS#11 module.
1265 - Changed the initialization of the PKCS#11 CK_MECHANISM in
1266 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
1268 - Refactored the RSA public/private key code and transferred it
1269 from keys.c to the new pkcs1.c file as a preparatory step
1270 towards the release of the SCEP client.
1276 - The loading of a PKCS#11 smartcard library module during
1277 runtime does not require OpenSC library functions any more
1278 because the corresponding code has been integrated into
1279 smartcard.c. Also the RSAREF pkcs11 header files have been
1280 included in a newly created pluto/rsaref directory so that
1281 no external include path has to be defined any longer.
1283 - A long-awaited feature has been implemented at last:
1284 The local caching of CRLs fetched via HTTP or LDAP, activated
1285 by the parameter cachecrls=yes in the config setup section
1286 of ipsec.conf. The dynamically fetched CRLs are stored under
1287 a unique file name containing the issuer's subjectKeyID
1288 in /etc/ipsec.d/crls.
1290 - Applied a one-line patch courtesy of Michael Richardson
1291 from the Openswan project which fixes the kernel-oops
1292 in KLIPS when an snmp daemon is running on the same box.
1298 - Eliminated null length CRL distribution point strings.
1300 - Fixed a trust path evaluation bug introduced with 2.4.3
1306 - Improved the joint OCSP / CRL revocation policy.
1307 OCSP responses have precedence over CRL entries.
1309 - Introduced support of CRLv2 reason codes.
1311 - Fixed a bug with key-pad equipped readers which caused
1312 pluto to prompt for the pin via the console when the first
1313 occasion to enter the pin via the key-pad was missed.
1315 - When pluto is built with LDAP_V3 enabled, the library
1316 liblber required by newer versions of openldap is now
1323 - Added the _updown_espmark template which requires all
1324 incoming ESP traffic to be marked with a default mark
1327 - Introduced the pkcs11keepstate parameter in the config setup
1328 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
1329 session and login states are kept as long as possible during
1330 the lifetime of pluto. This means that a PIN entry via a key
1331 pad has to be done only once.
1333 - Introduced the pkcs11module parameter in the config setup
1334 section of ipsec.conf which specifies the PKCS#11 module
1335 to be used with smart cards. Example:
1337 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
1339 - Added support of smartcard readers equipped with a PIN pad.
1341 - Added patch by Jay Pfeifer which detects when netkey
1342 modules have been statically built into the Linux 2.6 kernel.
1344 - Added two patches by Herbert Xu. The first uses ip xfrm
1345 instead of setkey to flush the IPsec policy database. The
1346 second sets the optional flag in inbound IPComp SAs only.
1348 - Applied Ulrich Weber's patch which fixes an interoperability
1349 problem between native IPsec and KLIPS systems caused by
1350 setting the replay window to 32 instead of 0 for ipcomp.
1356 - Fixed a bug which caused an unwanted Mode Config request
1357 to be initiated in the case where "right" was used to denote
1358 the local side in ipsec.conf and "left" the remote side,
1359 contrary to the recommendation that "right" be remote and
1366 - updated Vendor ID to strongSwan-2.4.0
1368 - updated copyright statement to include David Buechi and
1375 - strongSwan now communicates with attached smartcards and
1376 USB crypto tokens via the standardized PKCS #11 interface.
1377 By default the OpenSC library from www.opensc.org is used
1378 but any other PKCS#11 library could be dynamically linked.
1379 strongSwan's PKCS#11 API was implemented by David Buechi
1380 and Michael Meier, both graduates of the Zurich University
1381 of Applied Sciences in Winterthur, Switzerland.
1383 - When a %trap eroute is triggered by an outgoing IP packet
1384 then the native IPsec stack of the Linux 2.6 kernel [often/
1385 always?] returns an XFRM_ACQUIRE message with an undefined
1386 protocol family field and the connection setup fails.
1387 As a workaround IPv4 (AF_INET) is now assumed.
1389 - the results of the UML test scenarios are now enhanced
1390 with block diagrams of the virtual network topology used
1391 in a particular test.
1397 - fixed IV used to decrypt informational messages.
1398 This bug was introduced with Mode Config functionality.
1400 - fixed NCP Vendor ID.
1402 - undid one of Ulrich Weber's maximum udp size patches
1403 because it caused a segmentation fault with NAT-ed
1406 - added UML scenarios wildcards and attr-cert which
1407 demonstrate the implementation of IPsec policies based
1408 on wildcard parameters contained in Distinguished Names and
1409 on X.509 attribute certificates, respectively.
1415 - Added basic Mode Config functionality
1417 - Added Mathieu Lafon's patch which upgrades the status of
1418 the NAT-Traversal implementation to RFC 3947.
1420 - The _startklips script now also loads the xfrm4_tunnel
1423 - Added Ulrich Weber's netlink replay window size and
1424 maximum udp size patches.
1426 - UML testing now uses the Linux 2.6.10 UML kernel by default.
1432 - Eric Marchionni and Patrik Rayo, both recent graduates from
1433 the Zuercher Hochschule Winterthur in Switzerland, created a
1434 User-Mode-Linux test setup for strongSwan. For more details
1435 please read the INSTALL and README documents in the testing
1438 - Full support of group attributes based on X.509 attribute
1439 certificates. Attribute certificates can be generated
1440 using the openac facility. For more details see
1444 The group attributes can be used in connection definitions
1445 in order to give IPsec access to specific user groups.
1446 This is done with the new parameter left|rightgroups as in
1448 rightgroups="Research, Sales"
1450 giving access to users possessing the group attributes
1451 Research or Sales, only.
1453 - In Quick Mode clients with subnet mask /32 are now
1454 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
1455 fix rekeying problems with the SafeNet/SoftRemote and NCP
1456 Secure Entry Clients.
1458 - Changed the defaults of the ikelifetime and keylife parameters
1459 to 3h and 1h, respectively. The maximum allowable values are
1460 now both set to 24 h.
1462 - Suppressed notification wars between two IPsec peers that
1463 could e.g. be triggered by incorrect ISAKMP encryption.
1465 - Public RSA keys can now have identical IDs if either the
1466 issuing CA or the serial number is different. The serial
1467 number of a certificate is now shown by the command
1469 ipsec auto --listpubkeys
1475 - Added Tuomo Soini's sourceip feature which allows a strongSwan
1476 roadwarrior to use a fixed Virtual IP (see README section 2.6)
1477 and reduces the well-known four tunnel case on VPN gateways to
1478 a single tunnel definition (see README section 2.4).
1480 - Fixed a bug occuring with NAT-Traversal enabled when the responder
1481 suddenly turns initiator and the initiator cannot find a matching
1482 connection because of the floated IKE port 4500.
1484 - Removed misleading ipsec verify command from barf.
1486 - Running under the native IP stack, ipsec --version now shows
1487 the Linux kernel version (courtesy to the Openswan project).
1493 - Introduced the ipsec auto --listalgs monitoring command which lists
1494 all currently registered IKE and ESP algorithms.
1496 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
1497 is set and the first proposed transform does not match.
1499 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
1500 occuring when a smartcard is present.
1502 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
1504 - Fixed the printing of the notification names (null)
1506 - Applied another of Herbert Xu's Netlink patches.
1512 - Support of Dead Peer Detection. The connection parameter
1514 dpdaction=clear|hold
1516 activates DPD for the given connection.
1518 - The default Opportunistic Encryption (OE) policy groups are not
1519 automatically included anymore. Those wishing to activate OE can include
1520 the policy group with the following statement in ipsec.conf:
1522 include /etc/ipsec.d/examples/oe.conf
1524 The default for [right|left]rsasigkey is now set to %cert.
1526 - strongSwan now has a Vendor ID of its own which can be activated
1527 using the compile option VENDORID
1529 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
1531 - Applied Herbert Xu's patch fixing an ESPINUDP problem
1533 - Applied Herbert Xu's patch setting source/destination port numbers.
1535 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
1536 lost during the migration from SuperFreeS/WAN.
1538 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
1540 - Fixed the unsharing of alg parameters when instantiating group
1547 - Thomas Walpuski made me aware of a potential DoS attack via
1548 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
1549 certificates in Pluto's authority certificate store. This vulnerability
1550 was fixed by establishing trust in CA candidate certificates up to a
1551 trusted root CA prior to insertion into Pluto's chained list.
1553 - replaced the --assign option by the -v option in the auto awk script
1554 in order to make it run with mawk under debian/woody.
1560 - Split of the status information between ipsec auto --status (concise)
1561 and ipsec auto --statusall (verbose). Both commands can be used with
1562 an optional connection selector:
1564 ipsec auto --status[all] <connection_name>
1566 - Added the description of X.509 related features to the ipsec_auto(8)
1569 - Hardened the ASN.1 parser in debug mode, especially the printing
1570 of malformed distinguished names.
1572 - The size of an RSA public key received in a certificate is now restricted to
1574 512 bits <= modulus length <= 8192 bits.
1576 - Fixed the debug mode enumeration.
1582 - Fixed another PKCS#7 vulnerability which could lead to an
1583 endless loop while following the X.509 trust chain.
1589 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
1590 that accepted end certificates having identical issuer and subject
1591 distinguished names in a multi-tier X.509 trust chain.
1597 - Removed all remaining references to ipsec_netlink.h in KLIPS.
1603 - The new "ca" section allows to define the following parameters:
1606 cacert=koolCA.pem # cacert of kool CA
1607 ocspuri=http://ocsp.kool.net:8001 # ocsp server
1608 ldapserver=ldap.kool.net # default ldap server
1609 crluri=http://www.kool.net/kool.crl # crl distribution point
1610 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
1611 auto=add # add, ignore
1613 The ca definitions can be monitored via the command
1615 ipsec auto --listcainfos
1617 - Fixed cosmetic corruption of /proc filesystem by integrating
1618 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
1624 - Added support for the 818043 NAT-Traversal update of Microsoft's
1625 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
1627 - A symbolic link to libcrypto is now added in the kernel sources
1628 during kernel compilation
1630 - Fixed a couple of 64 bit issues (mostly casts to int).
1631 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
1633 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
1634 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
1635 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
1641 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
1642 certificate extension which contains no generalName item) can cause
1643 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
1644 been hardened to make it more robust against malformed ASN.1 objects.
1646 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
1647 Linux 2.6 IPsec stack.
1653 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12
projects / strongswan.git / blob