4 - IKEv1 authentication based on RSA signatures now can handle multiple
5 certificates issued for a given peer ID.
11 - Support for an additional Diffie-Hellman exchange when creating/rekeying
12 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
13 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
14 is implemented properly for rekeying.
16 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
17 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
19 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
21 - Added support for EAP modules which do not establish an MSK.
23 - Removed the dependencies from the /usr/include/linux/ headers by
24 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
26 - crlNumber is now listed by ipsec listcrls
28 - The xauth_modules.verify_secret() function now passes the
35 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
36 cookies are enabled and protect against DoS attacks with faked source
37 addresses. Number of IKE_SAs in CONNECTING state is also limited per
38 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
39 compared to properly detect retransmissions and incoming retransmits are
40 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
42 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
43 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
44 enabled by cachecrls=yes.
46 - Added the configuration options --enable-nat-transport which enables
47 the potentially insecure NAT traversal for IPsec transport mode and
48 --disable-vendor-id which disables the sending of the strongSwan
51 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
52 a segmentation fault if a malformed payload was detected in the
53 IKE MR2 message and pluto tried to send an encrypted notification
56 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
57 with Windows 2003 Server which uses a wrong VID hash.
63 - Support of SHA2_384 hash function for protecting IKEv1
64 negotiations and support of SHA2 signatures in X.509 certificates.
66 - Fixed a serious bug in the computation of the SHA2-512 HMAC
67 function. Introduced automatic self-test of all IKEv1 hash
68 and hmac functions during pluto startup. Failure of a self-test
69 currently issues a warning only but does not exit pluto [yet].
71 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
73 - Full support of CA information sections. ipsec listcainfos
74 now shows all collected crlDistributionPoints and OCSP
77 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
78 This feature requires the HTTP fetching capabilities of the libcurl
79 library which must be enabled by setting the --enable-http configure
82 - Refactored core of the IKEv2 message processing code, allowing better
83 code reuse and separation.
85 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
86 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
87 by the requestor and installed in a resolv.conf file.
89 - The IKEv2 daemon charon installs a route for each IPsec policy to use
90 the correct source address even if an application does not explicitly
93 - Integrated the EAP framework into charon which loads pluggable EAP library
94 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
95 on the client side, while the "eap" parameter on the server side defines
96 the EAP method to use for client authentication.
97 A generic client side EAP-Identity module and an EAP-SIM authentication
98 module using a third party card reader implementation are included.
100 - Added client side support for cookies.
102 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
103 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
104 fixes to enhance interoperability with other implementations.
110 - strongSwan now interoperates with the NCP Secure Entry Client,
111 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
112 XAUTH and Mode Config.
114 - UNITY attributes are now recognized and UNITY_BANNER is set
121 - IKEv1: Support for extended authentication (XAUTH) in combination
122 with ISAKMP Main Mode RSA or PSK authentication. Both client and
123 server side were implemented. Handling of user credentials can
124 be done by a run-time loadable XAUTH module. By default user
125 credentials are stored in ipsec.secrets.
127 - IKEv2: Support for reauthentication when rekeying
129 - IKEv2: Support for transport mode
131 - fixed a lot of bugs related to byte order
133 - various other bugfixes
139 - IKEv1: Implementation of ModeConfig push mode via the new connection
140 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
142 - IKEv1: The command ipsec statusall now shows "DPD active" for all
143 ISAKMP SAs that are under active Dead Peer Detection control.
145 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
146 Instead of logger, special printf() functions are used to directly
147 print objects like hosts (%H) identifications (%D), certificates (%Q),
148 etc. The number of debugging levels have been reduced to:
150 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
152 The debugging levels can either be specified statically in ipsec.conf as
155 charondebug="lib 1, cfg 3, net 2"
157 or changed at runtime via stroke as
159 ipsec stroke loglevel cfg 2
165 - Implemented full support for IPv6-in-IPv6 tunnels.
167 - Added configuration options for dead peer detection in IKEv2. dpd_action
168 types "clear", "hold" and "restart" are supported. The dpd_timeout
169 value is not used, as the normal retransmission policy applies to
170 detect dead peers. The dpd_delay parameter enables sending of empty
171 informational message to detect dead peers in case of inactivity.
173 - Added support for preshared keys in IKEv2. PSK keys configured in
174 ipsec.secrets are loaded. The authby parameter specifies the authentication
175 method to authentificate ourself, the other peer may use PSK or RSA.
177 - Changed retransmission policy to respect the keyingtries parameter.
179 - Added private key decryption. PEM keys encrypted with AES-128/192/256
180 or 3DES are supported.
182 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
185 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
186 signed with such a hash algorithm.
188 - Added initial support for updown scripts. The actions up-host/client and
189 down-host/client are executed. The leftfirewall=yes parameter
190 uses the default updown script to insert dynamic firewall rules, a custom
191 updown script may be specified with the leftupdown parameter.
197 - Added support for the auto=route ipsec.conf parameter and the
198 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
199 CHILD_SAs dynamically on demand when traffic is detected by the
202 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
203 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
204 new keys are generated using perfect forward secrecy. An optional flag
205 which enforces reauthentication will be implemented later.
207 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
208 algorithm configuration statements.
214 - Full X.509 certificate trust chain verification has been implemented.
215 End entity certificates can be exchanged via CERT payloads. The current
216 default is leftsendcert=always, since CERTREQ payloads are not supported
217 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
219 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
220 would offer more possibilities for traffic selection, but the Linux kernel
221 currently does not support it. That's why we stick with these simple
222 ipsec.conf rules for now.
224 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
225 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
228 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
229 notify payloads to detect NAT routers between the peers. It switches
230 to port 4500, uses UDP encapsulated ESP packets, handles peer address
231 changes gracefully and sends keep alive message periodically.
233 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
234 rekeying, more shared code, cleaner design, proper retransmission
235 and a more extensible code base.
237 - The mixed PSK/RSA roadwarrior detection capability introduced by the
238 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
239 payloads by the responder right before any defined IKE Main Mode state had
240 been established. Although any form of bad proposal syntax was being correctly
241 detected by the payload parser, the subsequent error handler didn't check
242 the state pointer before logging current state information, causing an
243 immediate crash of the pluto keying daemon due to a NULL pointer.
249 - Added algorithm selection to charon: New default algorithms for
250 ike=aes128-sha-modp2048, as both daemons support it. The default
251 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
252 the ike/esp parameter the same way as pluto. As this syntax does
253 not allow specification of a pseudo random function, the same
254 algorithm as for integrity is used (currently sha/md5). Supported
256 Encryption: aes128, aes192, aes256
257 Integrity/PRF: md5, sha (using hmac)
258 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
260 Encryption: aes128, aes192, aes256, 3des, blowfish128,
261 blowfish192, blowfish256
263 More IKE encryption algorithms will come after porting libcrypto into
266 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
267 perfect forward secrecy is used. The rekeying parameters rekey,
268 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
269 when using IKEv2. WARNING: charon currently is unable to handle
270 simultaneous rekeying. To avoid such a situation, use a large
271 rekeyfuzz, or even better, set rekey=no on one peer.
273 - support for host2host, net2net, host2net (roadwarrior) tunnels
274 using predefined RSA certificates (see uml scenarios for
275 configuration examples).
277 - new build environment featuring autotools. Features such
278 as HTTP, LDAP and smartcard support may be enabled using
279 the ./configure script. Changing install directories
280 is possible, too. See ./configure --help for more details.
282 - better integration of charon with ipsec starter, which allows
283 (almost) transparent operation with both daemons. charon
284 handles ipsec commands up, down, status, statusall, listall,
285 listcerts and allows proper load, reload and delete of connections
292 - initial support of the IKEv2 protocol. Connections in
293 ipsec.conf designated by keyexchange=ikev2 are negotiated
294 by the new IKEv2 charon keying daemon whereas those marked
295 by keyexchange=ikev1 or the default keyexchange=ike are
296 handled thy the IKEv1 pluto keying daemon. Currently only
297 a limited subset of functions are available with IKEv2
298 (Default AES encryption, authentication based on locally
299 imported X.509 certificates, unencrypted private RSA keys
300 in PKCS#1 file format, limited functionality of the ipsec
307 - the dynamic iptables rules from the _updown_x509 template
308 for KLIPS and the _updown_policy template for NETKEY have
309 been merged into the default _updown script. The existing
310 left|rightfirewall keyword causes the automatic insertion
311 and deletion of ACCEPT rules for tunneled traffic upon
312 the successful setup and teardown of an IPsec SA, respectively.
313 left|rightfirwall can be used with KLIPS under any Linux 2.4
314 kernel or with NETKEY under a Linux kernel version >= 2.6.16
315 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
316 kernel version < 2.6.16 which does not support IPsec policy
317 matching yet, please continue to use a copy of the _updown_espmark
318 template loaded via the left|rightupdown keyword.
320 - a new left|righthostaccess keyword has been introduced which
321 can be used in conjunction with left|rightfirewall and the
322 default _updown script. By default leftfirewall=yes inserts
323 a bi-directional iptables FORWARD rule for a local client network
324 with a netmask different from 255.255.255.255 (single host).
325 This does not allow to access the VPN gateway host via its
326 internal network interface which is part of the client subnet
327 because an iptables INPUT and OUTPUT rule would be required.
328 lefthostaccess=yes will cause this additional ACCEPT rules to
331 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
332 payload is preparsed in order to find out whether the roadwarrior
333 requests PSK or RSA so that a matching connection candidate can
340 - the new _updown_policy template allows ipsec policy based
341 iptables firewall rules. Required are iptables version
342 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
343 the _updown_espmark template, so that no INPUT mangle rules
344 are required any more.
346 - added support of DPD restart mode
348 - ipsec starter now allows the use of wildcards in include
349 statements as e.g. in "include /etc/my_ipsec/*.conf".
350 Patch courtesy of Matthias Haas.
352 - the Netscape OID 'employeeNumber' is now recognized and can be
353 used as a Relative Distinguished Name in certificates.
359 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
360 command and not of ipsec setup any more.
362 - ipsec starter now supports AH authentication in conjunction with
363 ESP encryption. AH authentication is configured in ipsec.conf
364 via the auth=ah parameter.
366 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
367 ipsec whack --scencrypt|scdecrypt <args>.
369 - get_sa_info() now determines for the native netkey IPsec stack
370 the exact time of the last use of an active eroute. This information
371 is used by the Dead Peer Detection algorithm and is also displayed by
372 the ipsec status command.
378 - running under the native Linux 2.6 IPsec stack, the function
379 get_sa_info() is called by ipsec auto --status to display the current
380 number of transmitted bytes per IPsec SA.
382 - get_sa_info() is also used by the Dead Peer Detection process to detect
383 recent ESP activity. If ESP traffic was received from the peer within
384 the last dpd_delay interval then no R_Y_THERE notification must be sent.
386 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
387 in ID_DER_ASN1_DN identities. The following notations are possible:
389 rightid="unstructuredName=John Doe"
390 rightid="UN=John Doe"
392 - fixed a long-standing bug which caused PSK-based roadwarrior connections
393 to segfault in the function id.c:same_id() called by keys.c:get_secret()
394 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
401 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
403 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
405 - in order to guarantee backwards-compatibility with the script-based
406 auto function (e.g. auto --replace), the ipsec starter scripts stores
407 the defaultroute information in the temporary file /var/run/ipsec.info.
409 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
410 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
413 - the ipsec starter now also recognizes the parameters authby=never and
414 type=passthrough|pass|drop|reject.
420 - ipsec starter now supports the also parameter which allows
421 a modular structure of the connection definitions. Thus
422 "ipsec start" is now ready to replace "ipsec setup".
428 - Mathieu Lafon's popular ipsec starter tool has been added to the
429 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
430 for his integration work. ipsec starter is a C program which is going
431 to replace the various shell and awk starter scripts (setup, _plutoload,
432 _plutostart, _realsetup, _startklips, _confread, and auto). Since
433 ipsec.conf is now parsed only once, the starting of multiple tunnels is
434 accelerated tremedously.
436 - Added support of %defaultroute to the ipsec starter. If the IP address
437 changes, a HUP signal to the ipsec starter will automatically
438 reload pluto's connections.
440 - moved most compile time configurations from pluto/Makefile to
441 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
442 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
444 - removed the ipsec verify and ipsec newhostkey commands
446 - fixed some 64-bit issues in formatted print statements
448 - The scepclient functionality implementing the Simple Certificate
449 Enrollment Protocol (SCEP) is nearly complete but hasn't been
456 - CA certicates are now automatically loaded from a smartcard
457 or USB crypto token and appear in the ipsec auto --listcacerts
464 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
465 library that does not support the C_Encrypt() Cryptoki
466 function (e.g. OpenSC), the RSA encryption is done in
467 software using the public key fetched from the smartcard.
469 - The scepclient function now allows to define the
470 validity of a self-signed certificate using the --days,
471 --startdate, and --enddate options. The default validity
472 has been changed from one year to five years.
478 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
479 interface to other applications for RSA encryption and decryption
480 via the whack interface. Notation:
482 ipsec whack --scencrypt <data>
483 [--inbase 16|hex|64|base64|256|text|ascii]
484 [--outbase 16|hex|64|base64|256|text|ascii]
487 ipsec whack --scdecrypt <data>
488 [--inbase 16|hex|64|base64|256|text|ascii]
489 [--outbase 16|hex|64|base64|256|text|ascii]
492 The default setting for inbase and outbase is hex.
494 The new proxy interface can be used for securing symmetric
495 encryption keys required by the cryptoloop or dm-crypt
496 disk encryption schemes, especially in the case when
497 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
500 - if the file /etc/ipsec.secrets is lacking during the startup of
501 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
502 containing a 2048 bit RSA private key and a matching self-signed
503 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
504 is automatically generated by calling the function
506 ipsec scepclient --out pkcs1 --out cert-self
508 scepclient was written by Jan Hutter and Martin Willi, students
509 at the University of Applied Sciences in Rapperswil, Switzerland.
515 - the current extension of the PKCS#7 framework introduced
516 a parsing error in PKCS#7 wrapped X.509 certificates that are
517 e.g. transmitted by Windows XP when multi-level CAs are used.
518 the parsing syntax has been fixed.
520 - added a patch by Gerald Richter which tolerates multiple occurrences
521 of the ipsec0 interface when using KLIPS.
527 - with gawk-3.1.4 the word "default2 has become a protected
528 keyword for use in switch statements and cannot be used any
529 more in the strongSwan scripts. This problem has been
530 solved by renaming "default" to "defaults" and "setdefault"
531 in the scripts _confread and auto, respectively.
533 - introduced the parameter leftsendcert with the values
535 always|yes (the default, always send a cert)
536 ifasked (send the cert only upon a cert request)
537 never|no (never send a cert, used for raw RSA keys and
540 - fixed the initialization of the ESP key length to a default of
541 128 bits in the case that the peer does not send a key length
542 attribute for AES encryption.
544 - applied Herbert Xu's uniqueIDs patch
546 - applied Herbert Xu's CLOEXEC patches
552 - CRLs can now be cached also in the case when the issuer's
553 certificate does not contain a subjectKeyIdentifier field.
554 In that case the subjectKeyIdentifier is computed by pluto as the
555 160 bit SHA-1 hash of the issuer's public key in compliance
556 with section 4.2.1.2 of RFC 3280.
558 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
559 not only multiple Quick Modes of a given connection but also
560 multiple connections between two security gateways.
566 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
567 installed either by setting auto=route in ipsec.conf or by
568 a connection put into hold, generates an XFRM_AQUIRE event
569 for each packet that wants to use the not-yet exisiting
570 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
571 the Quick Mode queue, causing multiple IPsec SA to be
572 established in rapid succession. Starting with strongswan-2.5.1
573 only a single IPsec SA is established per host-pair connection.
575 - Right after loading the PKCS#11 module, all smartcard slots are
576 searched for certificates. The result can be viewed using
579 ipsec auto --listcards
581 The certificate objects found in the slots are numbered
582 starting with #1, #2, etc. This position number can be used to address
583 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
584 in ipsec.conf and ipsec.secrets, respectively:
586 %smartcard (selects object #1)
587 %smartcard#1 (selects object #1)
588 %smartcard#3 (selects object #3)
590 As an alternative the existing retrieval scheme can be used:
592 %smartcard:45 (selects object with id=45)
593 %smartcard0 (selects first object in slot 0)
594 %smartcard4:45 (selects object in slot 4 with id=45)
596 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
597 private key flags either C_Sign() or C_Decrypt() is used
598 to generate a signature.
600 - The output buffer length parameter siglen in C_Sign()
601 is now initialized to the actual size of the output
602 buffer prior to the function call. This fixes the
603 CKR_BUFFER_TOO_SMALL error that could occur when using
604 the OpenSC PKCS#11 module.
606 - Changed the initialization of the PKCS#11 CK_MECHANISM in
607 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
609 - Refactored the RSA public/private key code and transferred it
610 from keys.c to the new pkcs1.c file as a preparatory step
611 towards the release of the SCEP client.
617 - The loading of a PKCS#11 smartcard library module during
618 runtime does not require OpenSC library functions any more
619 because the corresponding code has been integrated into
620 smartcard.c. Also the RSAREF pkcs11 header files have been
621 included in a newly created pluto/rsaref directory so that
622 no external include path has to be defined any longer.
624 - A long-awaited feature has been implemented at last:
625 The local caching of CRLs fetched via HTTP or LDAP, activated
626 by the parameter cachecrls=yes in the config setup section
627 of ipsec.conf. The dynamically fetched CRLs are stored under
628 a unique file name containing the issuer's subjectKeyID
629 in /etc/ipsec.d/crls.
631 - Applied a one-line patch courtesy of Michael Richardson
632 from the Openswan project which fixes the kernel-oops
633 in KLIPS when an snmp daemon is running on the same box.
639 - Eliminated null length CRL distribution point strings.
641 - Fixed a trust path evaluation bug introduced with 2.4.3
647 - Improved the joint OCSP / CRL revocation policy.
648 OCSP responses have precedence over CRL entries.
650 - Introduced support of CRLv2 reason codes.
652 - Fixed a bug with key-pad equipped readers which caused
653 pluto to prompt for the pin via the console when the first
654 occasion to enter the pin via the key-pad was missed.
656 - When pluto is built with LDAP_V3 enabled, the library
657 liblber required by newer versions of openldap is now
664 - Added the _updown_espmark template which requires all
665 incoming ESP traffic to be marked with a default mark
668 - Introduced the pkcs11keepstate parameter in the config setup
669 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
670 session and login states are kept as long as possible during
671 the lifetime of pluto. This means that a PIN entry via a key
672 pad has to be done only once.
674 - Introduced the pkcs11module parameter in the config setup
675 section of ipsec.conf which specifies the PKCS#11 module
676 to be used with smart cards. Example:
678 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
680 - Added support of smartcard readers equipped with a PIN pad.
682 - Added patch by Jay Pfeifer which detects when netkey
683 modules have been statically built into the Linux 2.6 kernel.
685 - Added two patches by Herbert Xu. The first uses ip xfrm
686 instead of setkey to flush the IPsec policy database. The
687 second sets the optional flag in inbound IPComp SAs only.
689 - Applied Ulrich Weber's patch which fixes an interoperability
690 problem between native IPsec and KLIPS systems caused by
691 setting the replay window to 32 instead of 0 for ipcomp.
697 - Fixed a bug which caused an unwanted Mode Config request
698 to be initiated in the case where "right" was used to denote
699 the local side in ipsec.conf and "left" the remote side,
700 contrary to the recommendation that "right" be remote and
707 - updated Vendor ID to strongSwan-2.4.0
709 - updated copyright statement to include David Buechi and
716 - strongSwan now communicates with attached smartcards and
717 USB crypto tokens via the standardized PKCS #11 interface.
718 By default the OpenSC library from www.opensc.org is used
719 but any other PKCS#11 library could be dynamically linked.
720 strongSwan's PKCS#11 API was implemented by David Buechi
721 and Michael Meier, both graduates of the Zurich University
722 of Applied Sciences in Winterthur, Switzerland.
724 - When a %trap eroute is triggered by an outgoing IP packet
725 then the native IPsec stack of the Linux 2.6 kernel [often/
726 always?] returns an XFRM_ACQUIRE message with an undefined
727 protocol family field and the connection setup fails.
728 As a workaround IPv4 (AF_INET) is now assumed.
730 - the results of the UML test scenarios are now enhanced
731 with block diagrams of the virtual network topology used
732 in a particular test.
738 - fixed IV used to decrypt informational messages.
739 This bug was introduced with Mode Config functionality.
741 - fixed NCP Vendor ID.
743 - undid one of Ulrich Weber's maximum udp size patches
744 because it caused a segmentation fault with NAT-ed
747 - added UML scenarios wildcards and attr-cert which
748 demonstrate the implementation of IPsec policies based
749 on wildcard parameters contained in Distinguished Names and
750 on X.509 attribute certificates, respectively.
756 - Added basic Mode Config functionality
758 - Added Mathieu Lafon's patch which upgrades the status of
759 the NAT-Traversal implementation to RFC 3947.
761 - The _startklips script now also loads the xfrm4_tunnel
764 - Added Ulrich Weber's netlink replay window size and
765 maximum udp size patches.
767 - UML testing now uses the Linux 2.6.10 UML kernel by default.
773 - Eric Marchionni and Patrik Rayo, both recent graduates from
774 the Zuercher Hochschule Winterthur in Switzerland, created a
775 User-Mode-Linux test setup for strongSwan. For more details
776 please read the INSTALL and README documents in the testing
779 - Full support of group attributes based on X.509 attribute
780 certificates. Attribute certificates can be generated
781 using the openac facility. For more details see
785 The group attributes can be used in connection definitions
786 in order to give IPsec access to specific user groups.
787 This is done with the new parameter left|rightgroups as in
789 rightgroups="Research, Sales"
791 giving access to users possessing the group attributes
792 Research or Sales, only.
794 - In Quick Mode clients with subnet mask /32 are now
795 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
796 fix rekeying problems with the SafeNet/SoftRemote and NCP
797 Secure Entry Clients.
799 - Changed the defaults of the ikelifetime and keylife parameters
800 to 3h and 1h, respectively. The maximum allowable values are
801 now both set to 24 h.
803 - Suppressed notification wars between two IPsec peers that
804 could e.g. be triggered by incorrect ISAKMP encryption.
806 - Public RSA keys can now have identical IDs if either the
807 issuing CA or the serial number is different. The serial
808 number of a certificate is now shown by the command
810 ipsec auto --listpubkeys
816 - Added Tuomo Soini's sourceip feature which allows a strongSwan
817 roadwarrior to use a fixed Virtual IP (see README section 2.6)
818 and reduces the well-known four tunnel case on VPN gateways to
819 a single tunnel definition (see README section 2.4).
821 - Fixed a bug occuring with NAT-Traversal enabled when the responder
822 suddenly turns initiator and the initiator cannot find a matching
823 connection because of the floated IKE port 4500.
825 - Removed misleading ipsec verify command from barf.
827 - Running under the native IP stack, ipsec --version now shows
828 the Linux kernel version (courtesy to the Openswan project).
834 - Introduced the ipsec auto --listalgs monitoring command which lists
835 all currently registered IKE and ESP algorithms.
837 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
838 is set and the first proposed transform does not match.
840 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
841 occuring when a smartcard is present.
843 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
845 - Fixed the printing of the notification names (null)
847 - Applied another of Herbert Xu's Netlink patches.
853 - Support of Dead Peer Detection. The connection parameter
857 activates DPD for the given connection.
859 - The default Opportunistic Encryption (OE) policy groups are not
860 automatically included anymore. Those wishing to activate OE can include
861 the policy group with the following statement in ipsec.conf:
863 include /etc/ipsec.d/examples/oe.conf
865 The default for [right|left]rsasigkey is now set to %cert.
867 - strongSwan now has a Vendor ID of its own which can be activated
868 using the compile option VENDORID
870 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
872 - Applied Herbert Xu's patch fixing an ESPINUDP problem
874 - Applied Herbert Xu's patch setting source/destination port numbers.
876 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
877 lost during the migration from SuperFreeS/WAN.
879 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
881 - Fixed the unsharing of alg parameters when instantiating group
888 - Thomas Walpuski made me aware of a potential DoS attack via
889 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
890 certificates in Pluto's authority certificate store. This vulnerability
891 was fixed by establishing trust in CA candidate certificates up to a
892 trusted root CA prior to insertion into Pluto's chained list.
894 - replaced the --assign option by the -v option in the auto awk script
895 in order to make it run with mawk under debian/woody.
901 - Split of the status information between ipsec auto --status (concise)
902 and ipsec auto --statusall (verbose). Both commands can be used with
903 an optional connection selector:
905 ipsec auto --status[all] <connection_name>
907 - Added the description of X.509 related features to the ipsec_auto(8)
910 - Hardened the ASN.1 parser in debug mode, especially the printing
911 of malformed distinguished names.
913 - The size of an RSA public key received in a certificate is now restricted to
915 512 bits <= modulus length <= 8192 bits.
917 - Fixed the debug mode enumeration.
923 - Fixed another PKCS#7 vulnerability which could lead to an
924 endless loop while following the X.509 trust chain.
930 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
931 that accepted end certificates having identical issuer and subject
932 distinguished names in a multi-tier X.509 trust chain.
938 - Removed all remaining references to ipsec_netlink.h in KLIPS.
944 - The new "ca" section allows to define the following parameters:
947 cacert=koolCA.pem # cacert of kool CA
948 ocspuri=http://ocsp.kool.net:8001 # ocsp server
949 ldapserver=ldap.kool.net # default ldap server
950 crluri=http://www.kool.net/kool.crl # crl distribution point
951 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
952 auto=add # add, ignore
954 The ca definitions can be monitored via the command
956 ipsec auto --listcainfos
958 - Fixed cosmetic corruption of /proc filesystem by integrating
959 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
965 - Added support for the 818043 NAT-Traversal update of Microsoft's
966 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
968 - A symbolic link to libcrypto is now added in the kernel sources
969 during kernel compilation
971 - Fixed a couple of 64 bit issues (mostly casts to int).
972 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
974 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
975 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
976 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
982 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
983 certificate extension which contains no generalName item) can cause
984 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
985 been hardened to make it more robust against malformed ASN.1 objects.
987 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
988 Linux 2.6 IPsec stack.
994 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12