4 - IKEv2 peer configuration selection can now be based on a required
5 certification authority using the rightca= statement.
7 - IKEv2 authentication based on RSA signatures now can handle multiple
8 certificates issued for a given peer ID.
10 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
11 client and returning requested virtual IPs using rightsourceip=%config
12 on the server. If the server does not support configuration payloads, the
13 client enforces its leftsourceip parameter.
15 - The ./configure options --with-uid/--with-gid allow pluto and charon
16 to drop their privileges to a minimum and change to an other UID/GID. This
17 improves the systems security, as a possible intruder may only get the
18 CAP_NET_ADMIN capability.
20 - Further modularization of charon: Pluggable control interface and
21 configuration backend modules provide extensibility. The control interface
22 for stroke is included, and further interfaces using DBUS (NetworkManager)
23 or XML are on the way. A backend for storing configurations in the daemon
24 is provided and more advanced backends (using e.g. a database) are trivial
30 - Support for an additional Diffie-Hellman exchange when creating/rekeying
31 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
32 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
33 is implemented properly for rekeying.
35 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
36 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
38 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
40 - Added support for EAP modules which do not establish an MSK.
42 - Removed the dependencies from the /usr/include/linux/ headers by
43 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
45 - crlNumber is now listed by ipsec listcrls
47 - The xauth_modules.verify_secret() function now passes the
54 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
55 cookies are enabled and protect against DoS attacks with faked source
56 addresses. Number of IKE_SAs in CONNECTING state is also limited per
57 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
58 compared to properly detect retransmissions and incoming retransmits are
59 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
61 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
62 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
63 enabled by cachecrls=yes.
65 - Added the configuration options --enable-nat-transport which enables
66 the potentially insecure NAT traversal for IPsec transport mode and
67 --disable-vendor-id which disables the sending of the strongSwan
70 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
71 a segmentation fault if a malformed payload was detected in the
72 IKE MR2 message and pluto tried to send an encrypted notification
75 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
76 with Windows 2003 Server which uses a wrong VID hash.
82 - Support of SHA2_384 hash function for protecting IKEv1
83 negotiations and support of SHA2 signatures in X.509 certificates.
85 - Fixed a serious bug in the computation of the SHA2-512 HMAC
86 function. Introduced automatic self-test of all IKEv1 hash
87 and hmac functions during pluto startup. Failure of a self-test
88 currently issues a warning only but does not exit pluto [yet].
90 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
92 - Full support of CA information sections. ipsec listcainfos
93 now shows all collected crlDistributionPoints and OCSP
96 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
97 This feature requires the HTTP fetching capabilities of the libcurl
98 library which must be enabled by setting the --enable-http configure
101 - Refactored core of the IKEv2 message processing code, allowing better
102 code reuse and separation.
104 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
105 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
106 by the requestor and installed in a resolv.conf file.
108 - The IKEv2 daemon charon installs a route for each IPsec policy to use
109 the correct source address even if an application does not explicitly
112 - Integrated the EAP framework into charon which loads pluggable EAP library
113 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
114 on the client side, while the "eap" parameter on the server side defines
115 the EAP method to use for client authentication.
116 A generic client side EAP-Identity module and an EAP-SIM authentication
117 module using a third party card reader implementation are included.
119 - Added client side support for cookies.
121 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
122 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
123 fixes to enhance interoperability with other implementations.
129 - strongSwan now interoperates with the NCP Secure Entry Client,
130 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
131 XAUTH and Mode Config.
133 - UNITY attributes are now recognized and UNITY_BANNER is set
140 - IKEv1: Support for extended authentication (XAUTH) in combination
141 with ISAKMP Main Mode RSA or PSK authentication. Both client and
142 server side were implemented. Handling of user credentials can
143 be done by a run-time loadable XAUTH module. By default user
144 credentials are stored in ipsec.secrets.
146 - IKEv2: Support for reauthentication when rekeying
148 - IKEv2: Support for transport mode
150 - fixed a lot of bugs related to byte order
152 - various other bugfixes
158 - IKEv1: Implementation of ModeConfig push mode via the new connection
159 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
161 - IKEv1: The command ipsec statusall now shows "DPD active" for all
162 ISAKMP SAs that are under active Dead Peer Detection control.
164 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
165 Instead of logger, special printf() functions are used to directly
166 print objects like hosts (%H) identifications (%D), certificates (%Q),
167 etc. The number of debugging levels have been reduced to:
169 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
171 The debugging levels can either be specified statically in ipsec.conf as
174 charondebug="lib 1, cfg 3, net 2"
176 or changed at runtime via stroke as
178 ipsec stroke loglevel cfg 2
184 - Implemented full support for IPv6-in-IPv6 tunnels.
186 - Added configuration options for dead peer detection in IKEv2. dpd_action
187 types "clear", "hold" and "restart" are supported. The dpd_timeout
188 value is not used, as the normal retransmission policy applies to
189 detect dead peers. The dpd_delay parameter enables sending of empty
190 informational message to detect dead peers in case of inactivity.
192 - Added support for preshared keys in IKEv2. PSK keys configured in
193 ipsec.secrets are loaded. The authby parameter specifies the authentication
194 method to authentificate ourself, the other peer may use PSK or RSA.
196 - Changed retransmission policy to respect the keyingtries parameter.
198 - Added private key decryption. PEM keys encrypted with AES-128/192/256
199 or 3DES are supported.
201 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
204 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
205 signed with such a hash algorithm.
207 - Added initial support for updown scripts. The actions up-host/client and
208 down-host/client are executed. The leftfirewall=yes parameter
209 uses the default updown script to insert dynamic firewall rules, a custom
210 updown script may be specified with the leftupdown parameter.
216 - Added support for the auto=route ipsec.conf parameter and the
217 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
218 CHILD_SAs dynamically on demand when traffic is detected by the
221 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
222 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
223 new keys are generated using perfect forward secrecy. An optional flag
224 which enforces reauthentication will be implemented later.
226 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
227 algorithm configuration statements.
233 - Full X.509 certificate trust chain verification has been implemented.
234 End entity certificates can be exchanged via CERT payloads. The current
235 default is leftsendcert=always, since CERTREQ payloads are not supported
236 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
238 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
239 would offer more possibilities for traffic selection, but the Linux kernel
240 currently does not support it. That's why we stick with these simple
241 ipsec.conf rules for now.
243 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
244 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
247 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
248 notify payloads to detect NAT routers between the peers. It switches
249 to port 4500, uses UDP encapsulated ESP packets, handles peer address
250 changes gracefully and sends keep alive message periodically.
252 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
253 rekeying, more shared code, cleaner design, proper retransmission
254 and a more extensible code base.
256 - The mixed PSK/RSA roadwarrior detection capability introduced by the
257 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
258 payloads by the responder right before any defined IKE Main Mode state had
259 been established. Although any form of bad proposal syntax was being correctly
260 detected by the payload parser, the subsequent error handler didn't check
261 the state pointer before logging current state information, causing an
262 immediate crash of the pluto keying daemon due to a NULL pointer.
268 - Added algorithm selection to charon: New default algorithms for
269 ike=aes128-sha-modp2048, as both daemons support it. The default
270 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
271 the ike/esp parameter the same way as pluto. As this syntax does
272 not allow specification of a pseudo random function, the same
273 algorithm as for integrity is used (currently sha/md5). Supported
275 Encryption: aes128, aes192, aes256
276 Integrity/PRF: md5, sha (using hmac)
277 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
279 Encryption: aes128, aes192, aes256, 3des, blowfish128,
280 blowfish192, blowfish256
282 More IKE encryption algorithms will come after porting libcrypto into
285 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
286 perfect forward secrecy is used. The rekeying parameters rekey,
287 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
288 when using IKEv2. WARNING: charon currently is unable to handle
289 simultaneous rekeying. To avoid such a situation, use a large
290 rekeyfuzz, or even better, set rekey=no on one peer.
292 - support for host2host, net2net, host2net (roadwarrior) tunnels
293 using predefined RSA certificates (see uml scenarios for
294 configuration examples).
296 - new build environment featuring autotools. Features such
297 as HTTP, LDAP and smartcard support may be enabled using
298 the ./configure script. Changing install directories
299 is possible, too. See ./configure --help for more details.
301 - better integration of charon with ipsec starter, which allows
302 (almost) transparent operation with both daemons. charon
303 handles ipsec commands up, down, status, statusall, listall,
304 listcerts and allows proper load, reload and delete of connections
311 - initial support of the IKEv2 protocol. Connections in
312 ipsec.conf designated by keyexchange=ikev2 are negotiated
313 by the new IKEv2 charon keying daemon whereas those marked
314 by keyexchange=ikev1 or the default keyexchange=ike are
315 handled thy the IKEv1 pluto keying daemon. Currently only
316 a limited subset of functions are available with IKEv2
317 (Default AES encryption, authentication based on locally
318 imported X.509 certificates, unencrypted private RSA keys
319 in PKCS#1 file format, limited functionality of the ipsec
326 - the dynamic iptables rules from the _updown_x509 template
327 for KLIPS and the _updown_policy template for NETKEY have
328 been merged into the default _updown script. The existing
329 left|rightfirewall keyword causes the automatic insertion
330 and deletion of ACCEPT rules for tunneled traffic upon
331 the successful setup and teardown of an IPsec SA, respectively.
332 left|rightfirwall can be used with KLIPS under any Linux 2.4
333 kernel or with NETKEY under a Linux kernel version >= 2.6.16
334 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
335 kernel version < 2.6.16 which does not support IPsec policy
336 matching yet, please continue to use a copy of the _updown_espmark
337 template loaded via the left|rightupdown keyword.
339 - a new left|righthostaccess keyword has been introduced which
340 can be used in conjunction with left|rightfirewall and the
341 default _updown script. By default leftfirewall=yes inserts
342 a bi-directional iptables FORWARD rule for a local client network
343 with a netmask different from 255.255.255.255 (single host).
344 This does not allow to access the VPN gateway host via its
345 internal network interface which is part of the client subnet
346 because an iptables INPUT and OUTPUT rule would be required.
347 lefthostaccess=yes will cause this additional ACCEPT rules to
350 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
351 payload is preparsed in order to find out whether the roadwarrior
352 requests PSK or RSA so that a matching connection candidate can
359 - the new _updown_policy template allows ipsec policy based
360 iptables firewall rules. Required are iptables version
361 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
362 the _updown_espmark template, so that no INPUT mangle rules
363 are required any more.
365 - added support of DPD restart mode
367 - ipsec starter now allows the use of wildcards in include
368 statements as e.g. in "include /etc/my_ipsec/*.conf".
369 Patch courtesy of Matthias Haas.
371 - the Netscape OID 'employeeNumber' is now recognized and can be
372 used as a Relative Distinguished Name in certificates.
378 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
379 command and not of ipsec setup any more.
381 - ipsec starter now supports AH authentication in conjunction with
382 ESP encryption. AH authentication is configured in ipsec.conf
383 via the auth=ah parameter.
385 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
386 ipsec whack --scencrypt|scdecrypt <args>.
388 - get_sa_info() now determines for the native netkey IPsec stack
389 the exact time of the last use of an active eroute. This information
390 is used by the Dead Peer Detection algorithm and is also displayed by
391 the ipsec status command.
397 - running under the native Linux 2.6 IPsec stack, the function
398 get_sa_info() is called by ipsec auto --status to display the current
399 number of transmitted bytes per IPsec SA.
401 - get_sa_info() is also used by the Dead Peer Detection process to detect
402 recent ESP activity. If ESP traffic was received from the peer within
403 the last dpd_delay interval then no R_Y_THERE notification must be sent.
405 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
406 in ID_DER_ASN1_DN identities. The following notations are possible:
408 rightid="unstructuredName=John Doe"
409 rightid="UN=John Doe"
411 - fixed a long-standing bug which caused PSK-based roadwarrior connections
412 to segfault in the function id.c:same_id() called by keys.c:get_secret()
413 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
420 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
422 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
424 - in order to guarantee backwards-compatibility with the script-based
425 auto function (e.g. auto --replace), the ipsec starter scripts stores
426 the defaultroute information in the temporary file /var/run/ipsec.info.
428 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
429 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
432 - the ipsec starter now also recognizes the parameters authby=never and
433 type=passthrough|pass|drop|reject.
439 - ipsec starter now supports the also parameter which allows
440 a modular structure of the connection definitions. Thus
441 "ipsec start" is now ready to replace "ipsec setup".
447 - Mathieu Lafon's popular ipsec starter tool has been added to the
448 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
449 for his integration work. ipsec starter is a C program which is going
450 to replace the various shell and awk starter scripts (setup, _plutoload,
451 _plutostart, _realsetup, _startklips, _confread, and auto). Since
452 ipsec.conf is now parsed only once, the starting of multiple tunnels is
453 accelerated tremedously.
455 - Added support of %defaultroute to the ipsec starter. If the IP address
456 changes, a HUP signal to the ipsec starter will automatically
457 reload pluto's connections.
459 - moved most compile time configurations from pluto/Makefile to
460 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
461 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
463 - removed the ipsec verify and ipsec newhostkey commands
465 - fixed some 64-bit issues in formatted print statements
467 - The scepclient functionality implementing the Simple Certificate
468 Enrollment Protocol (SCEP) is nearly complete but hasn't been
475 - CA certicates are now automatically loaded from a smartcard
476 or USB crypto token and appear in the ipsec auto --listcacerts
483 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
484 library that does not support the C_Encrypt() Cryptoki
485 function (e.g. OpenSC), the RSA encryption is done in
486 software using the public key fetched from the smartcard.
488 - The scepclient function now allows to define the
489 validity of a self-signed certificate using the --days,
490 --startdate, and --enddate options. The default validity
491 has been changed from one year to five years.
497 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
498 interface to other applications for RSA encryption and decryption
499 via the whack interface. Notation:
501 ipsec whack --scencrypt <data>
502 [--inbase 16|hex|64|base64|256|text|ascii]
503 [--outbase 16|hex|64|base64|256|text|ascii]
506 ipsec whack --scdecrypt <data>
507 [--inbase 16|hex|64|base64|256|text|ascii]
508 [--outbase 16|hex|64|base64|256|text|ascii]
511 The default setting for inbase and outbase is hex.
513 The new proxy interface can be used for securing symmetric
514 encryption keys required by the cryptoloop or dm-crypt
515 disk encryption schemes, especially in the case when
516 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
519 - if the file /etc/ipsec.secrets is lacking during the startup of
520 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
521 containing a 2048 bit RSA private key and a matching self-signed
522 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
523 is automatically generated by calling the function
525 ipsec scepclient --out pkcs1 --out cert-self
527 scepclient was written by Jan Hutter and Martin Willi, students
528 at the University of Applied Sciences in Rapperswil, Switzerland.
534 - the current extension of the PKCS#7 framework introduced
535 a parsing error in PKCS#7 wrapped X.509 certificates that are
536 e.g. transmitted by Windows XP when multi-level CAs are used.
537 the parsing syntax has been fixed.
539 - added a patch by Gerald Richter which tolerates multiple occurrences
540 of the ipsec0 interface when using KLIPS.
546 - with gawk-3.1.4 the word "default2 has become a protected
547 keyword for use in switch statements and cannot be used any
548 more in the strongSwan scripts. This problem has been
549 solved by renaming "default" to "defaults" and "setdefault"
550 in the scripts _confread and auto, respectively.
552 - introduced the parameter leftsendcert with the values
554 always|yes (the default, always send a cert)
555 ifasked (send the cert only upon a cert request)
556 never|no (never send a cert, used for raw RSA keys and
559 - fixed the initialization of the ESP key length to a default of
560 128 bits in the case that the peer does not send a key length
561 attribute for AES encryption.
563 - applied Herbert Xu's uniqueIDs patch
565 - applied Herbert Xu's CLOEXEC patches
571 - CRLs can now be cached also in the case when the issuer's
572 certificate does not contain a subjectKeyIdentifier field.
573 In that case the subjectKeyIdentifier is computed by pluto as the
574 160 bit SHA-1 hash of the issuer's public key in compliance
575 with section 4.2.1.2 of RFC 3280.
577 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
578 not only multiple Quick Modes of a given connection but also
579 multiple connections between two security gateways.
585 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
586 installed either by setting auto=route in ipsec.conf or by
587 a connection put into hold, generates an XFRM_AQUIRE event
588 for each packet that wants to use the not-yet exisiting
589 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
590 the Quick Mode queue, causing multiple IPsec SA to be
591 established in rapid succession. Starting with strongswan-2.5.1
592 only a single IPsec SA is established per host-pair connection.
594 - Right after loading the PKCS#11 module, all smartcard slots are
595 searched for certificates. The result can be viewed using
598 ipsec auto --listcards
600 The certificate objects found in the slots are numbered
601 starting with #1, #2, etc. This position number can be used to address
602 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
603 in ipsec.conf and ipsec.secrets, respectively:
605 %smartcard (selects object #1)
606 %smartcard#1 (selects object #1)
607 %smartcard#3 (selects object #3)
609 As an alternative the existing retrieval scheme can be used:
611 %smartcard:45 (selects object with id=45)
612 %smartcard0 (selects first object in slot 0)
613 %smartcard4:45 (selects object in slot 4 with id=45)
615 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
616 private key flags either C_Sign() or C_Decrypt() is used
617 to generate a signature.
619 - The output buffer length parameter siglen in C_Sign()
620 is now initialized to the actual size of the output
621 buffer prior to the function call. This fixes the
622 CKR_BUFFER_TOO_SMALL error that could occur when using
623 the OpenSC PKCS#11 module.
625 - Changed the initialization of the PKCS#11 CK_MECHANISM in
626 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
628 - Refactored the RSA public/private key code and transferred it
629 from keys.c to the new pkcs1.c file as a preparatory step
630 towards the release of the SCEP client.
636 - The loading of a PKCS#11 smartcard library module during
637 runtime does not require OpenSC library functions any more
638 because the corresponding code has been integrated into
639 smartcard.c. Also the RSAREF pkcs11 header files have been
640 included in a newly created pluto/rsaref directory so that
641 no external include path has to be defined any longer.
643 - A long-awaited feature has been implemented at last:
644 The local caching of CRLs fetched via HTTP or LDAP, activated
645 by the parameter cachecrls=yes in the config setup section
646 of ipsec.conf. The dynamically fetched CRLs are stored under
647 a unique file name containing the issuer's subjectKeyID
648 in /etc/ipsec.d/crls.
650 - Applied a one-line patch courtesy of Michael Richardson
651 from the Openswan project which fixes the kernel-oops
652 in KLIPS when an snmp daemon is running on the same box.
658 - Eliminated null length CRL distribution point strings.
660 - Fixed a trust path evaluation bug introduced with 2.4.3
666 - Improved the joint OCSP / CRL revocation policy.
667 OCSP responses have precedence over CRL entries.
669 - Introduced support of CRLv2 reason codes.
671 - Fixed a bug with key-pad equipped readers which caused
672 pluto to prompt for the pin via the console when the first
673 occasion to enter the pin via the key-pad was missed.
675 - When pluto is built with LDAP_V3 enabled, the library
676 liblber required by newer versions of openldap is now
683 - Added the _updown_espmark template which requires all
684 incoming ESP traffic to be marked with a default mark
687 - Introduced the pkcs11keepstate parameter in the config setup
688 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
689 session and login states are kept as long as possible during
690 the lifetime of pluto. This means that a PIN entry via a key
691 pad has to be done only once.
693 - Introduced the pkcs11module parameter in the config setup
694 section of ipsec.conf which specifies the PKCS#11 module
695 to be used with smart cards. Example:
697 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
699 - Added support of smartcard readers equipped with a PIN pad.
701 - Added patch by Jay Pfeifer which detects when netkey
702 modules have been statically built into the Linux 2.6 kernel.
704 - Added two patches by Herbert Xu. The first uses ip xfrm
705 instead of setkey to flush the IPsec policy database. The
706 second sets the optional flag in inbound IPComp SAs only.
708 - Applied Ulrich Weber's patch which fixes an interoperability
709 problem between native IPsec and KLIPS systems caused by
710 setting the replay window to 32 instead of 0 for ipcomp.
716 - Fixed a bug which caused an unwanted Mode Config request
717 to be initiated in the case where "right" was used to denote
718 the local side in ipsec.conf and "left" the remote side,
719 contrary to the recommendation that "right" be remote and
726 - updated Vendor ID to strongSwan-2.4.0
728 - updated copyright statement to include David Buechi and
735 - strongSwan now communicates with attached smartcards and
736 USB crypto tokens via the standardized PKCS #11 interface.
737 By default the OpenSC library from www.opensc.org is used
738 but any other PKCS#11 library could be dynamically linked.
739 strongSwan's PKCS#11 API was implemented by David Buechi
740 and Michael Meier, both graduates of the Zurich University
741 of Applied Sciences in Winterthur, Switzerland.
743 - When a %trap eroute is triggered by an outgoing IP packet
744 then the native IPsec stack of the Linux 2.6 kernel [often/
745 always?] returns an XFRM_ACQUIRE message with an undefined
746 protocol family field and the connection setup fails.
747 As a workaround IPv4 (AF_INET) is now assumed.
749 - the results of the UML test scenarios are now enhanced
750 with block diagrams of the virtual network topology used
751 in a particular test.
757 - fixed IV used to decrypt informational messages.
758 This bug was introduced with Mode Config functionality.
760 - fixed NCP Vendor ID.
762 - undid one of Ulrich Weber's maximum udp size patches
763 because it caused a segmentation fault with NAT-ed
766 - added UML scenarios wildcards and attr-cert which
767 demonstrate the implementation of IPsec policies based
768 on wildcard parameters contained in Distinguished Names and
769 on X.509 attribute certificates, respectively.
775 - Added basic Mode Config functionality
777 - Added Mathieu Lafon's patch which upgrades the status of
778 the NAT-Traversal implementation to RFC 3947.
780 - The _startklips script now also loads the xfrm4_tunnel
783 - Added Ulrich Weber's netlink replay window size and
784 maximum udp size patches.
786 - UML testing now uses the Linux 2.6.10 UML kernel by default.
792 - Eric Marchionni and Patrik Rayo, both recent graduates from
793 the Zuercher Hochschule Winterthur in Switzerland, created a
794 User-Mode-Linux test setup for strongSwan. For more details
795 please read the INSTALL and README documents in the testing
798 - Full support of group attributes based on X.509 attribute
799 certificates. Attribute certificates can be generated
800 using the openac facility. For more details see
804 The group attributes can be used in connection definitions
805 in order to give IPsec access to specific user groups.
806 This is done with the new parameter left|rightgroups as in
808 rightgroups="Research, Sales"
810 giving access to users possessing the group attributes
811 Research or Sales, only.
813 - In Quick Mode clients with subnet mask /32 are now
814 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
815 fix rekeying problems with the SafeNet/SoftRemote and NCP
816 Secure Entry Clients.
818 - Changed the defaults of the ikelifetime and keylife parameters
819 to 3h and 1h, respectively. The maximum allowable values are
820 now both set to 24 h.
822 - Suppressed notification wars between two IPsec peers that
823 could e.g. be triggered by incorrect ISAKMP encryption.
825 - Public RSA keys can now have identical IDs if either the
826 issuing CA or the serial number is different. The serial
827 number of a certificate is now shown by the command
829 ipsec auto --listpubkeys
835 - Added Tuomo Soini's sourceip feature which allows a strongSwan
836 roadwarrior to use a fixed Virtual IP (see README section 2.6)
837 and reduces the well-known four tunnel case on VPN gateways to
838 a single tunnel definition (see README section 2.4).
840 - Fixed a bug occuring with NAT-Traversal enabled when the responder
841 suddenly turns initiator and the initiator cannot find a matching
842 connection because of the floated IKE port 4500.
844 - Removed misleading ipsec verify command from barf.
846 - Running under the native IP stack, ipsec --version now shows
847 the Linux kernel version (courtesy to the Openswan project).
853 - Introduced the ipsec auto --listalgs monitoring command which lists
854 all currently registered IKE and ESP algorithms.
856 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
857 is set and the first proposed transform does not match.
859 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
860 occuring when a smartcard is present.
862 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
864 - Fixed the printing of the notification names (null)
866 - Applied another of Herbert Xu's Netlink patches.
872 - Support of Dead Peer Detection. The connection parameter
876 activates DPD for the given connection.
878 - The default Opportunistic Encryption (OE) policy groups are not
879 automatically included anymore. Those wishing to activate OE can include
880 the policy group with the following statement in ipsec.conf:
882 include /etc/ipsec.d/examples/oe.conf
884 The default for [right|left]rsasigkey is now set to %cert.
886 - strongSwan now has a Vendor ID of its own which can be activated
887 using the compile option VENDORID
889 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
891 - Applied Herbert Xu's patch fixing an ESPINUDP problem
893 - Applied Herbert Xu's patch setting source/destination port numbers.
895 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
896 lost during the migration from SuperFreeS/WAN.
898 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
900 - Fixed the unsharing of alg parameters when instantiating group
907 - Thomas Walpuski made me aware of a potential DoS attack via
908 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
909 certificates in Pluto's authority certificate store. This vulnerability
910 was fixed by establishing trust in CA candidate certificates up to a
911 trusted root CA prior to insertion into Pluto's chained list.
913 - replaced the --assign option by the -v option in the auto awk script
914 in order to make it run with mawk under debian/woody.
920 - Split of the status information between ipsec auto --status (concise)
921 and ipsec auto --statusall (verbose). Both commands can be used with
922 an optional connection selector:
924 ipsec auto --status[all] <connection_name>
926 - Added the description of X.509 related features to the ipsec_auto(8)
929 - Hardened the ASN.1 parser in debug mode, especially the printing
930 of malformed distinguished names.
932 - The size of an RSA public key received in a certificate is now restricted to
934 512 bits <= modulus length <= 8192 bits.
936 - Fixed the debug mode enumeration.
942 - Fixed another PKCS#7 vulnerability which could lead to an
943 endless loop while following the X.509 trust chain.
949 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
950 that accepted end certificates having identical issuer and subject
951 distinguished names in a multi-tier X.509 trust chain.
957 - Removed all remaining references to ipsec_netlink.h in KLIPS.
963 - The new "ca" section allows to define the following parameters:
966 cacert=koolCA.pem # cacert of kool CA
967 ocspuri=http://ocsp.kool.net:8001 # ocsp server
968 ldapserver=ldap.kool.net # default ldap server
969 crluri=http://www.kool.net/kool.crl # crl distribution point
970 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
971 auto=add # add, ignore
973 The ca definitions can be monitored via the command
975 ipsec auto --listcainfos
977 - Fixed cosmetic corruption of /proc filesystem by integrating
978 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
984 - Added support for the 818043 NAT-Traversal update of Microsoft's
985 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
987 - A symbolic link to libcrypto is now added in the kernel sources
988 during kernel compilation
990 - Fixed a couple of 64 bit issues (mostly casts to int).
991 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
993 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
994 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
995 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
1001 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
1002 certificate extension which contains no generalName item) can cause
1003 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
1004 been hardened to make it more robust against malformed ASN.1 objects.
1006 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
1007 Linux 2.6 IPsec stack.
1013 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12
projects / strongswan.git / blob