4 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
5 cookies are enabled and protect against DoS attacks with faked source
6 addresses. Number of IKE_SAs in CONNECTING state is also limited per
7 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
8 compared to properly detect retransmissions and incoming retransmits are
9 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
11 - Added the configuration options --enable-nat-transport which enables
12 the potentially insecure NAT traversal for IPsec transport mode and
13 --disable-vendor-id which disables the sending of the strongSwan
16 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
17 a segmentation fault if a malformed payload was detected in the
18 IKE MR2 message and pluto tried to send an encrypted notification
21 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
22 with Windows 2003 Server which uses a wrong VID hash.
24 - The IKEv2 daemon charon now supports dynamic http-based CRL fetching
25 enabled by crlcheckinterval > 0 and caching fetched CRLs enabled by
32 - Support of SHA2_384 hash function for protecting IKEv1
33 negotiations and support of SHA2 signatures in X.509 certificates.
35 - Fixed a serious bug in the computation of the SHA2-512 HMAC
36 function. Introduced automatic self-test of all IKEv1 hash
37 and hmac functions during pluto startup. Failure of a self-test
38 currently issues a warning only but does not exit pluto [yet].
40 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
42 - Full support of CA information sections. ipsec listcainfos
43 now shows all collected crlDistributionPoints and OCSP
46 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
47 This feature requires the HTTP fetching capabilities of the libcurl
48 library which must be enabled by setting the --enable-http configure
51 - Refactored core of the IKEv2 message processing code, allowing better
52 code reuse and separation.
54 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
55 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
56 by the requestor and installed in a resolv.conf file.
58 - The IKEv2 daemon charon installs a route for each IPsec policy to use
59 the correct source address even if an application does not explicitly
62 - Integrated the EAP framework into charon which loads pluggable EAP library
63 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
64 on the client side, while the "eap" parameter on the server side defines
65 the EAP method to use for client authentication.
66 A generic client side EAP-Identity module and an EAP-SIM authentication
67 module using a third party card reader implementation are included.
69 - Added client side support for cookies.
71 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
72 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
73 fixes to enhance interoperability with other implementations.
78 - strongSwan now interoperates with the NCP Secure Entry Client,
79 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
80 XAUTH and Mode Config.
82 - UNITY attributes are now recognized and UNITY_BANNER is set
89 - IKEv1: Support for extended authentication (XAUTH) in combination
90 with ISAKMP Main Mode RSA or PSK authentication. Both client and
91 server side were implemented. Handling of user credentials can
92 be done by a run-time loadable XAUTH module. By default user
93 credentials are stored in ipsec.secrets.
95 - IKEv2: Support for reauthentication when rekeying
97 - IKEv2: Support for transport mode
99 - fixed a lot of bugs related to byte order
101 - various other bugfixes
107 - IKEv1: Implementation of ModeConfig push mode via the new connection
108 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
110 - IKEv1: The command ipsec statusall now shows "DPD active" for all
111 ISAKMP SAs that are under active Dead Peer Detection control.
113 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
114 Instead of logger, special printf() functions are used to directly
115 print objects like hosts (%H) identifications (%D), certificates (%Q),
116 etc. The number of debugging levels have been reduced to:
118 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
120 The debugging levels can either be specified statically in ipsec.conf as
123 charondebug="lib 1, cfg 3, net 2"
125 or changed at runtime via stroke as
127 ipsec stroke loglevel cfg 2
133 - Implemented full support for IPv6-in-IPv6 tunnels.
135 - Added configuration options for dead peer detection in IKEv2. dpd_action
136 types "clear", "hold" and "restart" are supported. The dpd_timeout
137 value is not used, as the normal retransmission policy applies to
138 detect dead peers. The dpd_delay parameter enables sending of empty
139 informational message to detect dead peers in case of inactivity.
141 - Added support for preshared keys in IKEv2. PSK keys configured in
142 ipsec.secrets are loaded. The authby parameter specifies the authentication
143 method to authentificate ourself, the other peer may use PSK or RSA.
145 - Changed retransmission policy to respect the keyingtries parameter.
147 - Added private key decryption. PEM keys encrypted with AES-128/192/256
148 or 3DES are supported.
150 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
153 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
154 signed with such a hash algorithm.
156 - Added initial support for updown scripts. The actions up-host/client and
157 down-host/client are executed. The leftfirewall=yes parameter
158 uses the default updown script to insert dynamic firewall rules, a custom
159 updown script may be specified with the leftupdown parameter.
165 - Added support for the auto=route ipsec.conf parameter and the
166 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
167 CHILD_SAs dynamically on demand when traffic is detected by the
170 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
171 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
172 new keys are generated using perfect forward secrecy. An optional flag
173 which enforces reauthentication will be implemented later.
175 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
176 algorithm configuration statements.
182 - Full X.509 certificate trust chain verification has been implemented.
183 End entity certificates can be exchanged via CERT payloads. The current
184 default is leftsendcert=always, since CERTREQ payloads are not supported
185 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
187 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
188 would offer more possibilities for traffic selection, but the Linux kernel
189 currently does not support it. That's why we stick with these simple
190 ipsec.conf rules for now.
192 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
193 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
196 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
197 notify payloads to detect NAT routers between the peers. It switches
198 to port 4500, uses UDP encapsulated ESP packets, handles peer address
199 changes gracefully and sends keep alive message periodically.
201 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
202 rekeying, more shared code, cleaner design, proper retransmission
203 and a more extensible code base.
205 - The mixed PSK/RSA roadwarrior detection capability introduced by the
206 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
207 payloads by the responder right before any defined IKE Main Mode state had
208 been established. Although any form of bad proposal syntax was being correctly
209 detected by the payload parser, the subsequent error handler didn't check
210 the state pointer before logging current state information, causing an
211 immediate crash of the pluto keying daemon due to a NULL pointer.
217 - Added algorithm selection to charon: New default algorithms for
218 ike=aes128-sha-modp2048, as both daemons support it. The default
219 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
220 the ike/esp parameter the same way as pluto. As this syntax does
221 not allow specification of a pseudo random function, the same
222 algorithm as for integrity is used (currently sha/md5). Supported
224 Encryption: aes128, aes192, aes256
225 Integrity/PRF: md5, sha (using hmac)
226 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
228 Encryption: aes128, aes192, aes256, 3des, blowfish128,
229 blowfish192, blowfish256
231 More IKE encryption algorithms will come after porting libcrypto into
234 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
235 perfect forward secrecy is used. The rekeying parameters rekey,
236 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
237 when using IKEv2. WARNING: charon currently is unable to handle
238 simultaneous rekeying. To avoid such a situation, use a large
239 rekeyfuzz, or even better, set rekey=no on one peer.
241 - support for host2host, net2net, host2net (roadwarrior) tunnels
242 using predefined RSA certificates (see uml scenarios for
243 configuration examples).
245 - new build environment featuring autotools. Features such
246 as HTTP, LDAP and smartcard support may be enabled using
247 the ./configure script. Changing install directories
248 is possible, too. See ./configure --help for more details.
250 - better integration of charon with ipsec starter, which allows
251 (almost) transparent operation with both daemons. charon
252 handles ipsec commands up, down, status, statusall, listall,
253 listcerts and allows proper load, reload and delete of connections
260 - initial support of the IKEv2 protocol. Connections in
261 ipsec.conf designated by keyexchange=ikev2 are negotiated
262 by the new IKEv2 charon keying daemon whereas those marked
263 by keyexchange=ikev1 or the default keyexchange=ike are
264 handled thy the IKEv1 pluto keying daemon. Currently only
265 a limited subset of functions are available with IKEv2
266 (Default AES encryption, authentication based on locally
267 imported X.509 certificates, unencrypted private RSA keys
268 in PKCS#1 file format, limited functionality of the ipsec
275 - the dynamic iptables rules from the _updown_x509 template
276 for KLIPS and the _updown_policy template for NETKEY have
277 been merged into the default _updown script. The existing
278 left|rightfirewall keyword causes the automatic insertion
279 and deletion of ACCEPT rules for tunneled traffic upon
280 the successful setup and teardown of an IPsec SA, respectively.
281 left|rightfirwall can be used with KLIPS under any Linux 2.4
282 kernel or with NETKEY under a Linux kernel version >= 2.6.16
283 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
284 kernel version < 2.6.16 which does not support IPsec policy
285 matching yet, please continue to use a copy of the _updown_espmark
286 template loaded via the left|rightupdown keyword.
288 - a new left|righthostaccess keyword has been introduced which
289 can be used in conjunction with left|rightfirewall and the
290 default _updown script. By default leftfirewall=yes inserts
291 a bi-directional iptables FORWARD rule for a local client network
292 with a netmask different from 255.255.255.255 (single host).
293 This does not allow to access the VPN gateway host via its
294 internal network interface which is part of the client subnet
295 because an iptables INPUT and OUTPUT rule would be required.
296 lefthostaccess=yes will cause this additional ACCEPT rules to
299 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
300 payload is preparsed in order to find out whether the roadwarrior
301 requests PSK or RSA so that a matching connection candidate can
308 - the new _updown_policy template allows ipsec policy based
309 iptables firewall rules. Required are iptables version
310 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
311 the _updown_espmark template, so that no INPUT mangle rules
312 are required any more.
314 - added support of DPD restart mode
316 - ipsec starter now allows the use of wildcards in include
317 statements as e.g. in "include /etc/my_ipsec/*.conf".
318 Patch courtesy of Matthias Haas.
320 - the Netscape OID 'employeeNumber' is now recognized and can be
321 used as a Relative Distinguished Name in certificates.
327 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
328 command and not of ipsec setup any more.
330 - ipsec starter now supports AH authentication in conjunction with
331 ESP encryption. AH authentication is configured in ipsec.conf
332 via the auth=ah parameter.
334 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
335 ipsec whack --scencrypt|scdecrypt <args>.
337 - get_sa_info() now determines for the native netkey IPsec stack
338 the exact time of the last use of an active eroute. This information
339 is used by the Dead Peer Detection algorithm and is also displayed by
340 the ipsec status command.
346 - running under the native Linux 2.6 IPsec stack, the function
347 get_sa_info() is called by ipsec auto --status to display the current
348 number of transmitted bytes per IPsec SA.
350 - get_sa_info() is also used by the Dead Peer Detection process to detect
351 recent ESP activity. If ESP traffic was received from the peer within
352 the last dpd_delay interval then no R_Y_THERE notification must be sent.
354 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
355 in ID_DER_ASN1_DN identities. The following notations are possible:
357 rightid="unstructuredName=John Doe"
358 rightid="UN=John Doe"
360 - fixed a long-standing bug which caused PSK-based roadwarrior connections
361 to segfault in the function id.c:same_id() called by keys.c:get_secret()
362 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
369 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
371 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
373 - in order to guarantee backwards-compatibility with the script-based
374 auto function (e.g. auto --replace), the ipsec starter scripts stores
375 the defaultroute information in the temporary file /var/run/ipsec.info.
377 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
378 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
381 - the ipsec starter now also recognizes the parameters authby=never and
382 type=passthrough|pass|drop|reject.
388 - ipsec starter now supports the also parameter which allows
389 a modular structure of the connection definitions. Thus
390 "ipsec start" is now ready to replace "ipsec setup".
396 - Mathieu Lafon's popular ipsec starter tool has been added to the
397 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
398 for his integration work. ipsec starter is a C program which is going
399 to replace the various shell and awk starter scripts (setup, _plutoload,
400 _plutostart, _realsetup, _startklips, _confread, and auto). Since
401 ipsec.conf is now parsed only once, the starting of multiple tunnels is
402 accelerated tremedously.
404 - Added support of %defaultroute to the ipsec starter. If the IP address
405 changes, a HUP signal to the ipsec starter will automatically
406 reload pluto's connections.
408 - moved most compile time configurations from pluto/Makefile to
409 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
410 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
412 - removed the ipsec verify and ipsec newhostkey commands
414 - fixed some 64-bit issues in formatted print statements
416 - The scepclient functionality implementing the Simple Certificate
417 Enrollment Protocol (SCEP) is nearly complete but hasn't been
424 - CA certicates are now automatically loaded from a smartcard
425 or USB crypto token and appear in the ipsec auto --listcacerts
432 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
433 library that does not support the C_Encrypt() Cryptoki
434 function (e.g. OpenSC), the RSA encryption is done in
435 software using the public key fetched from the smartcard.
437 - The scepclient function now allows to define the
438 validity of a self-signed certificate using the --days,
439 --startdate, and --enddate options. The default validity
440 has been changed from one year to five years.
446 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
447 interface to other applications for RSA encryption and decryption
448 via the whack interface. Notation:
450 ipsec whack --scencrypt <data>
451 [--inbase 16|hex|64|base64|256|text|ascii]
452 [--outbase 16|hex|64|base64|256|text|ascii]
455 ipsec whack --scdecrypt <data>
456 [--inbase 16|hex|64|base64|256|text|ascii]
457 [--outbase 16|hex|64|base64|256|text|ascii]
460 The default setting for inbase and outbase is hex.
462 The new proxy interface can be used for securing symmetric
463 encryption keys required by the cryptoloop or dm-crypt
464 disk encryption schemes, especially in the case when
465 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
468 - if the file /etc/ipsec.secrets is lacking during the startup of
469 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
470 containing a 2048 bit RSA private key and a matching self-signed
471 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
472 is automatically generated by calling the function
474 ipsec scepclient --out pkcs1 --out cert-self
476 scepclient was written by Jan Hutter and Martin Willi, students
477 at the University of Applied Sciences in Rapperswil, Switzerland.
483 - the current extension of the PKCS#7 framework introduced
484 a parsing error in PKCS#7 wrapped X.509 certificates that are
485 e.g. transmitted by Windows XP when multi-level CAs are used.
486 the parsing syntax has been fixed.
488 - added a patch by Gerald Richter which tolerates multiple occurrences
489 of the ipsec0 interface when using KLIPS.
495 - with gawk-3.1.4 the word "default2 has become a protected
496 keyword for use in switch statements and cannot be used any
497 more in the strongSwan scripts. This problem has been
498 solved by renaming "default" to "defaults" and "setdefault"
499 in the scripts _confread and auto, respectively.
501 - introduced the parameter leftsendcert with the values
503 always|yes (the default, always send a cert)
504 ifasked (send the cert only upon a cert request)
505 never|no (never send a cert, used for raw RSA keys and
508 - fixed the initialization of the ESP key length to a default of
509 128 bits in the case that the peer does not send a key length
510 attribute for AES encryption.
512 - applied Herbert Xu's uniqueIDs patch
514 - applied Herbert Xu's CLOEXEC patches
520 - CRLs can now be cached also in the case when the issuer's
521 certificate does not contain a subjectKeyIdentifier field.
522 In that case the subjectKeyIdentifier is computed by pluto as the
523 160 bit SHA-1 hash of the issuer's public key in compliance
524 with section 4.2.1.2 of RFC 3280.
526 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
527 not only multiple Quick Modes of a given connection but also
528 multiple connections between two security gateways.
534 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
535 installed either by setting auto=route in ipsec.conf or by
536 a connection put into hold, generates an XFRM_AQUIRE event
537 for each packet that wants to use the not-yet exisiting
538 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
539 the Quick Mode queue, causing multiple IPsec SA to be
540 established in rapid succession. Starting with strongswan-2.5.1
541 only a single IPsec SA is established per host-pair connection.
543 - Right after loading the PKCS#11 module, all smartcard slots are
544 searched for certificates. The result can be viewed using
547 ipsec auto --listcards
549 The certificate objects found in the slots are numbered
550 starting with #1, #2, etc. This position number can be used to address
551 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
552 in ipsec.conf and ipsec.secrets, respectively:
554 %smartcard (selects object #1)
555 %smartcard#1 (selects object #1)
556 %smartcard#3 (selects object #3)
558 As an alternative the existing retrieval scheme can be used:
560 %smartcard:45 (selects object with id=45)
561 %smartcard0 (selects first object in slot 0)
562 %smartcard4:45 (selects object in slot 4 with id=45)
564 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
565 private key flags either C_Sign() or C_Decrypt() is used
566 to generate a signature.
568 - The output buffer length parameter siglen in C_Sign()
569 is now initialized to the actual size of the output
570 buffer prior to the function call. This fixes the
571 CKR_BUFFER_TOO_SMALL error that could occur when using
572 the OpenSC PKCS#11 module.
574 - Changed the initialization of the PKCS#11 CK_MECHANISM in
575 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
577 - Refactored the RSA public/private key code and transferred it
578 from keys.c to the new pkcs1.c file as a preparatory step
579 towards the release of the SCEP client.
585 - The loading of a PKCS#11 smartcard library module during
586 runtime does not require OpenSC library functions any more
587 because the corresponding code has been integrated into
588 smartcard.c. Also the RSAREF pkcs11 header files have been
589 included in a newly created pluto/rsaref directory so that
590 no external include path has to be defined any longer.
592 - A long-awaited feature has been implemented at last:
593 The local caching of CRLs fetched via HTTP or LDAP, activated
594 by the parameter cachecrls=yes in the config setup section
595 of ipsec.conf. The dynamically fetched CRLs are stored under
596 a unique file name containing the issuer's subjectKeyID
597 in /etc/ipsec.d/crls.
599 - Applied a one-line patch courtesy of Michael Richardson
600 from the Openswan project which fixes the kernel-oops
601 in KLIPS when an snmp daemon is running on the same box.
607 - Eliminated null length CRL distribution point strings.
609 - Fixed a trust path evaluation bug introduced with 2.4.3
615 - Improved the joint OCSP / CRL revocation policy.
616 OCSP responses have precedence over CRL entries.
618 - Introduced support of CRLv2 reason codes.
620 - Fixed a bug with key-pad equipped readers which caused
621 pluto to prompt for the pin via the console when the first
622 occasion to enter the pin via the key-pad was missed.
624 - When pluto is built with LDAP_V3 enabled, the library
625 liblber required by newer versions of openldap is now
632 - Added the _updown_espmark template which requires all
633 incoming ESP traffic to be marked with a default mark
636 - Introduced the pkcs11keepstate parameter in the config setup
637 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
638 session and login states are kept as long as possible during
639 the lifetime of pluto. This means that a PIN entry via a key
640 pad has to be done only once.
642 - Introduced the pkcs11module parameter in the config setup
643 section of ipsec.conf which specifies the PKCS#11 module
644 to be used with smart cards. Example:
646 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
648 - Added support of smartcard readers equipped with a PIN pad.
650 - Added patch by Jay Pfeifer which detects when netkey
651 modules have been statically built into the Linux 2.6 kernel.
653 - Added two patches by Herbert Xu. The first uses ip xfrm
654 instead of setkey to flush the IPsec policy database. The
655 second sets the optional flag in inbound IPComp SAs only.
657 - Applied Ulrich Weber's patch which fixes an interoperability
658 problem between native IPsec and KLIPS systems caused by
659 setting the replay window to 32 instead of 0 for ipcomp.
665 - Fixed a bug which caused an unwanted Mode Config request
666 to be initiated in the case where "right" was used to denote
667 the local side in ipsec.conf and "left" the remote side,
668 contrary to the recommendation that "right" be remote and
675 - updated Vendor ID to strongSwan-2.4.0
677 - updated copyright statement to include David Buechi and
684 - strongSwan now communicates with attached smartcards and
685 USB crypto tokens via the standardized PKCS #11 interface.
686 By default the OpenSC library from www.opensc.org is used
687 but any other PKCS#11 library could be dynamically linked.
688 strongSwan's PKCS#11 API was implemented by David Buechi
689 and Michael Meier, both graduates of the Zurich University
690 of Applied Sciences in Winterthur, Switzerland.
692 - When a %trap eroute is triggered by an outgoing IP packet
693 then the native IPsec stack of the Linux 2.6 kernel [often/
694 always?] returns an XFRM_ACQUIRE message with an undefined
695 protocol family field and the connection setup fails.
696 As a workaround IPv4 (AF_INET) is now assumed.
698 - the results of the UML test scenarios are now enhanced
699 with block diagrams of the virtual network topology used
700 in a particular test.
706 - fixed IV used to decrypt informational messages.
707 This bug was introduced with Mode Config functionality.
709 - fixed NCP Vendor ID.
711 - undid one of Ulrich Weber's maximum udp size patches
712 because it caused a segmentation fault with NAT-ed
715 - added UML scenarios wildcards and attr-cert which
716 demonstrate the implementation of IPsec policies based
717 on wildcard parameters contained in Distinguished Names and
718 on X.509 attribute certificates, respectively.
724 - Added basic Mode Config functionality
726 - Added Mathieu Lafon's patch which upgrades the status of
727 the NAT-Traversal implementation to RFC 3947.
729 - The _startklips script now also loads the xfrm4_tunnel
732 - Added Ulrich Weber's netlink replay window size and
733 maximum udp size patches.
735 - UML testing now uses the Linux 2.6.10 UML kernel by default.
741 - Eric Marchionni and Patrik Rayo, both recent graduates from
742 the Zuercher Hochschule Winterthur in Switzerland, created a
743 User-Mode-Linux test setup for strongSwan. For more details
744 please read the INSTALL and README documents in the testing
747 - Full support of group attributes based on X.509 attribute
748 certificates. Attribute certificates can be generated
749 using the openac facility. For more details see
753 The group attributes can be used in connection definitions
754 in order to give IPsec access to specific user groups.
755 This is done with the new parameter left|rightgroups as in
757 rightgroups="Research, Sales"
759 giving access to users possessing the group attributes
760 Research or Sales, only.
762 - In Quick Mode clients with subnet mask /32 are now
763 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
764 fix rekeying problems with the SafeNet/SoftRemote and NCP
765 Secure Entry Clients.
767 - Changed the defaults of the ikelifetime and keylife parameters
768 to 3h and 1h, respectively. The maximum allowable values are
769 now both set to 24 h.
771 - Suppressed notification wars between two IPsec peers that
772 could e.g. be triggered by incorrect ISAKMP encryption.
774 - Public RSA keys can now have identical IDs if either the
775 issuing CA or the serial number is different. The serial
776 number of a certificate is now shown by the command
778 ipsec auto --listpubkeys
784 - Added Tuomo Soini's sourceip feature which allows a strongSwan
785 roadwarrior to use a fixed Virtual IP (see README section 2.6)
786 and reduces the well-known four tunnel case on VPN gateways to
787 a single tunnel definition (see README section 2.4).
789 - Fixed a bug occuring with NAT-Traversal enabled when the responder
790 suddenly turns initiator and the initiator cannot find a matching
791 connection because of the floated IKE port 4500.
793 - Removed misleading ipsec verify command from barf.
795 - Running under the native IP stack, ipsec --version now shows
796 the Linux kernel version (courtesy to the Openswan project).
802 - Introduced the ipsec auto --listalgs monitoring command which lists
803 all currently registered IKE and ESP algorithms.
805 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
806 is set and the first proposed transform does not match.
808 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
809 occuring when a smartcard is present.
811 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
813 - Fixed the printing of the notification names (null)
815 - Applied another of Herbert Xu's Netlink patches.
821 - Support of Dead Peer Detection. The connection parameter
825 activates DPD for the given connection.
827 - The default Opportunistic Encryption (OE) policy groups are not
828 automatically included anymore. Those wishing to activate OE can include
829 the policy group with the following statement in ipsec.conf:
831 include /etc/ipsec.d/examples/oe.conf
833 The default for [right|left]rsasigkey is now set to %cert.
835 - strongSwan now has a Vendor ID of its own which can be activated
836 using the compile option VENDORID
838 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
840 - Applied Herbert Xu's patch fixing an ESPINUDP problem
842 - Applied Herbert Xu's patch setting source/destination port numbers.
844 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
845 lost during the migration from SuperFreeS/WAN.
847 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
849 - Fixed the unsharing of alg parameters when instantiating group
856 - Thomas Walpuski made me aware of a potential DoS attack via
857 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
858 certificates in Pluto's authority certificate store. This vulnerability
859 was fixed by establishing trust in CA candidate certificates up to a
860 trusted root CA prior to insertion into Pluto's chained list.
862 - replaced the --assign option by the -v option in the auto awk script
863 in order to make it run with mawk under debian/woody.
869 - Split of the status information between ipsec auto --status (concise)
870 and ipsec auto --statusall (verbose). Both commands can be used with
871 an optional connection selector:
873 ipsec auto --status[all] <connection_name>
875 - Added the description of X.509 related features to the ipsec_auto(8)
878 - Hardened the ASN.1 parser in debug mode, especially the printing
879 of malformed distinguished names.
881 - The size of an RSA public key received in a certificate is now restricted to
883 512 bits <= modulus length <= 8192 bits.
885 - Fixed the debug mode enumeration.
891 - Fixed another PKCS#7 vulnerability which could lead to an
892 endless loop while following the X.509 trust chain.
898 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
899 that accepted end certificates having identical issuer and subject
900 distinguished names in a multi-tier X.509 trust chain.
906 - Removed all remaining references to ipsec_netlink.h in KLIPS.
912 - The new "ca" section allows to define the following parameters:
915 cacert=koolCA.pem # cacert of kool CA
916 ocspuri=http://ocsp.kool.net:8001 # ocsp server
917 ldapserver=ldap.kool.net # default ldap server
918 crluri=http://www.kool.net/kool.crl # crl distribution point
919 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
920 auto=add # add, ignore
922 The ca definitions can be monitored via the command
924 ipsec auto --listcainfos
926 - Fixed cosmetic corruption of /proc filesystem by integrating
927 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
933 - Added support for the 818043 NAT-Traversal update of Microsoft's
934 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
936 - A symbolic link to libcrypto is now added in the kernel sources
937 during kernel compilation
939 - Fixed a couple of 64 bit issues (mostly casts to int).
940 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
942 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
943 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
944 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
950 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
951 certificate extension which contains no generalName item) can cause
952 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
953 been hardened to make it more robust against malformed ASN.1 objects.
955 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
956 Linux 2.6 IPsec stack.
962 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12