10 - If a DNS lookup failure occurs when resolving right=%<FQDN>
11 or right=<FQDN> combined with rightallowany=yes then the
12 connection is not updated by ipsec starter thus preventing
13 the disruption of an active IPsec connection. Only if the DNS
14 lookup successfully returns with a changed IP address the
15 corresponding connection definition is updated.
17 - Routes installed by the keying daemons are now in a separate
18 routing table with the ID 100 to avoid conflicts with the main
19 table. Route lookup for IKEv2 traffic is done in userspace to ignore
20 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
26 - The pluto IKEv1 daemon now exhibits the same behaviour as its
27 IKEv2 companion charon by inserting an explicit route via the
28 _updown script only if a sourceip exists. This is admissible
29 since routing through the IPsec tunnel is handled automatically
30 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
31 parameter is not required any more.
33 - The new IKEv1 parameter right|leftallowany parameters helps to handle
34 the case where both peers possess dynamic IP addresses that are
35 usually resolved using DynDNS or a similar service. The configuration
40 can be used by the initiator to start up a connection to a peer
41 by resolving peer.foo.bar into the currently allocated IP address.
42 Thanks to the rightallowany flag the connection behaves later on
47 so that the peer can rekey the connection as an initiator when his
48 IP address changes. An alternative notation is
52 which will implicitly set rightallowany=yes.
54 - ipsec starter now fails more gracefully in the presence of parsing
55 errors. Flawed ca and conn section are discarded and pluto is started
56 if non-fatal errors only were encountered. If right=%peer.foo.bar
57 cannot be resolved by DNS then right=%any will be used so that passive
58 connections as a responder are still possible.
60 - The new pkcs11initargs parameter that can be placed in the
61 setup config section of /etc/ipsec.conf allows the definition
62 of an argument string that is used with the PKCS#11 C_Initialize()
63 function. This non-standard feature is required by the NSS softoken
64 library. This patch was contributed by Robert Varga.
66 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
67 which caused a segmentation fault in the presence of unknown
68 or misspelt keywords in ipsec.conf. This bug fix was contributed
71 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
72 address configuration changes and updates IKE and IPsec SAs dynamically.
78 - IKEv2 peer configuration selection now can be based on a given
79 certification authority using the rightca= statement.
81 - IKEv2 authentication based on RSA signatures now can handle multiple
82 certificates issued for a given peer ID. This allows a smooth transition
83 in the case of a peer certificate renewal.
85 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
86 client and returning requested virtual IPs using rightsourceip=%config
87 on the server. If the server does not support configuration payloads, the
88 client enforces its leftsourceip parameter.
90 - The ./configure options --with-uid/--with-gid allow pluto and charon
91 to drop their privileges to a minimum and change to an other UID/GID. This
92 improves the systems security, as a possible intruder may only get the
93 CAP_NET_ADMIN capability.
95 - Further modularization of charon: Pluggable control interface and
96 configuration backend modules provide extensibility. The control interface
97 for stroke is included, and further interfaces using DBUS (NetworkManager)
98 or XML are on the way. A backend for storing configurations in the daemon
99 is provided and more advanced backends (using e.g. a database) are trivial
102 - Fixed a compilation failure in libfreeswan occuring with Linux kernel
109 - Support for an additional Diffie-Hellman exchange when creating/rekeying
110 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
111 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
112 is implemented properly for rekeying.
114 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
115 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
117 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
119 - Added support for EAP modules which do not establish an MSK.
121 - Removed the dependencies from the /usr/include/linux/ headers by
122 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
124 - crlNumber is now listed by ipsec listcrls
126 - The xauth_modules.verify_secret() function now passes the
133 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
134 cookies are enabled and protect against DoS attacks with faked source
135 addresses. Number of IKE_SAs in CONNECTING state is also limited per
136 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
137 compared to properly detect retransmissions and incoming retransmits are
138 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
140 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
141 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
142 enabled by cachecrls=yes.
144 - Added the configuration options --enable-nat-transport which enables
145 the potentially insecure NAT traversal for IPsec transport mode and
146 --disable-vendor-id which disables the sending of the strongSwan
149 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
150 a segmentation fault if a malformed payload was detected in the
151 IKE MR2 message and pluto tried to send an encrypted notification
154 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
155 with Windows 2003 Server which uses a wrong VID hash.
161 - Support of SHA2_384 hash function for protecting IKEv1
162 negotiations and support of SHA2 signatures in X.509 certificates.
164 - Fixed a serious bug in the computation of the SHA2-512 HMAC
165 function. Introduced automatic self-test of all IKEv1 hash
166 and hmac functions during pluto startup. Failure of a self-test
167 currently issues a warning only but does not exit pluto [yet].
169 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
171 - Full support of CA information sections. ipsec listcainfos
172 now shows all collected crlDistributionPoints and OCSP
175 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
176 This feature requires the HTTP fetching capabilities of the libcurl
177 library which must be enabled by setting the --enable-http configure
180 - Refactored core of the IKEv2 message processing code, allowing better
181 code reuse and separation.
183 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
184 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
185 by the requestor and installed in a resolv.conf file.
187 - The IKEv2 daemon charon installs a route for each IPsec policy to use
188 the correct source address even if an application does not explicitly
191 - Integrated the EAP framework into charon which loads pluggable EAP library
192 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
193 on the client side, while the "eap" parameter on the server side defines
194 the EAP method to use for client authentication.
195 A generic client side EAP-Identity module and an EAP-SIM authentication
196 module using a third party card reader implementation are included.
198 - Added client side support for cookies.
200 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
201 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
202 fixes to enhance interoperability with other implementations.
208 - strongSwan now interoperates with the NCP Secure Entry Client,
209 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
210 XAUTH and Mode Config.
212 - UNITY attributes are now recognized and UNITY_BANNER is set
219 - IKEv1: Support for extended authentication (XAUTH) in combination
220 with ISAKMP Main Mode RSA or PSK authentication. Both client and
221 server side were implemented. Handling of user credentials can
222 be done by a run-time loadable XAUTH module. By default user
223 credentials are stored in ipsec.secrets.
225 - IKEv2: Support for reauthentication when rekeying
227 - IKEv2: Support for transport mode
229 - fixed a lot of bugs related to byte order
231 - various other bugfixes
237 - IKEv1: Implementation of ModeConfig push mode via the new connection
238 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
240 - IKEv1: The command ipsec statusall now shows "DPD active" for all
241 ISAKMP SAs that are under active Dead Peer Detection control.
243 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
244 Instead of logger, special printf() functions are used to directly
245 print objects like hosts (%H) identifications (%D), certificates (%Q),
246 etc. The number of debugging levels have been reduced to:
248 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
250 The debugging levels can either be specified statically in ipsec.conf as
253 charondebug="lib 1, cfg 3, net 2"
255 or changed at runtime via stroke as
257 ipsec stroke loglevel cfg 2
263 - Implemented full support for IPv6-in-IPv6 tunnels.
265 - Added configuration options for dead peer detection in IKEv2. dpd_action
266 types "clear", "hold" and "restart" are supported. The dpd_timeout
267 value is not used, as the normal retransmission policy applies to
268 detect dead peers. The dpd_delay parameter enables sending of empty
269 informational message to detect dead peers in case of inactivity.
271 - Added support for preshared keys in IKEv2. PSK keys configured in
272 ipsec.secrets are loaded. The authby parameter specifies the authentication
273 method to authentificate ourself, the other peer may use PSK or RSA.
275 - Changed retransmission policy to respect the keyingtries parameter.
277 - Added private key decryption. PEM keys encrypted with AES-128/192/256
278 or 3DES are supported.
280 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
283 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
284 signed with such a hash algorithm.
286 - Added initial support for updown scripts. The actions up-host/client and
287 down-host/client are executed. The leftfirewall=yes parameter
288 uses the default updown script to insert dynamic firewall rules, a custom
289 updown script may be specified with the leftupdown parameter.
295 - Added support for the auto=route ipsec.conf parameter and the
296 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
297 CHILD_SAs dynamically on demand when traffic is detected by the
300 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
301 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
302 new keys are generated using perfect forward secrecy. An optional flag
303 which enforces reauthentication will be implemented later.
305 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
306 algorithm configuration statements.
312 - Full X.509 certificate trust chain verification has been implemented.
313 End entity certificates can be exchanged via CERT payloads. The current
314 default is leftsendcert=always, since CERTREQ payloads are not supported
315 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
317 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
318 would offer more possibilities for traffic selection, but the Linux kernel
319 currently does not support it. That's why we stick with these simple
320 ipsec.conf rules for now.
322 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
323 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
326 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
327 notify payloads to detect NAT routers between the peers. It switches
328 to port 4500, uses UDP encapsulated ESP packets, handles peer address
329 changes gracefully and sends keep alive message periodically.
331 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
332 rekeying, more shared code, cleaner design, proper retransmission
333 and a more extensible code base.
335 - The mixed PSK/RSA roadwarrior detection capability introduced by the
336 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
337 payloads by the responder right before any defined IKE Main Mode state had
338 been established. Although any form of bad proposal syntax was being correctly
339 detected by the payload parser, the subsequent error handler didn't check
340 the state pointer before logging current state information, causing an
341 immediate crash of the pluto keying daemon due to a NULL pointer.
347 - Added algorithm selection to charon: New default algorithms for
348 ike=aes128-sha-modp2048, as both daemons support it. The default
349 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
350 the ike/esp parameter the same way as pluto. As this syntax does
351 not allow specification of a pseudo random function, the same
352 algorithm as for integrity is used (currently sha/md5). Supported
354 Encryption: aes128, aes192, aes256
355 Integrity/PRF: md5, sha (using hmac)
356 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
358 Encryption: aes128, aes192, aes256, 3des, blowfish128,
359 blowfish192, blowfish256
361 More IKE encryption algorithms will come after porting libcrypto into
364 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
365 perfect forward secrecy is used. The rekeying parameters rekey,
366 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
367 when using IKEv2. WARNING: charon currently is unable to handle
368 simultaneous rekeying. To avoid such a situation, use a large
369 rekeyfuzz, or even better, set rekey=no on one peer.
371 - support for host2host, net2net, host2net (roadwarrior) tunnels
372 using predefined RSA certificates (see uml scenarios for
373 configuration examples).
375 - new build environment featuring autotools. Features such
376 as HTTP, LDAP and smartcard support may be enabled using
377 the ./configure script. Changing install directories
378 is possible, too. See ./configure --help for more details.
380 - better integration of charon with ipsec starter, which allows
381 (almost) transparent operation with both daemons. charon
382 handles ipsec commands up, down, status, statusall, listall,
383 listcerts and allows proper load, reload and delete of connections
390 - initial support of the IKEv2 protocol. Connections in
391 ipsec.conf designated by keyexchange=ikev2 are negotiated
392 by the new IKEv2 charon keying daemon whereas those marked
393 by keyexchange=ikev1 or the default keyexchange=ike are
394 handled thy the IKEv1 pluto keying daemon. Currently only
395 a limited subset of functions are available with IKEv2
396 (Default AES encryption, authentication based on locally
397 imported X.509 certificates, unencrypted private RSA keys
398 in PKCS#1 file format, limited functionality of the ipsec
405 - the dynamic iptables rules from the _updown_x509 template
406 for KLIPS and the _updown_policy template for NETKEY have
407 been merged into the default _updown script. The existing
408 left|rightfirewall keyword causes the automatic insertion
409 and deletion of ACCEPT rules for tunneled traffic upon
410 the successful setup and teardown of an IPsec SA, respectively.
411 left|rightfirwall can be used with KLIPS under any Linux 2.4
412 kernel or with NETKEY under a Linux kernel version >= 2.6.16
413 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
414 kernel version < 2.6.16 which does not support IPsec policy
415 matching yet, please continue to use a copy of the _updown_espmark
416 template loaded via the left|rightupdown keyword.
418 - a new left|righthostaccess keyword has been introduced which
419 can be used in conjunction with left|rightfirewall and the
420 default _updown script. By default leftfirewall=yes inserts
421 a bi-directional iptables FORWARD rule for a local client network
422 with a netmask different from 255.255.255.255 (single host).
423 This does not allow to access the VPN gateway host via its
424 internal network interface which is part of the client subnet
425 because an iptables INPUT and OUTPUT rule would be required.
426 lefthostaccess=yes will cause this additional ACCEPT rules to
429 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
430 payload is preparsed in order to find out whether the roadwarrior
431 requests PSK or RSA so that a matching connection candidate can
438 - the new _updown_policy template allows ipsec policy based
439 iptables firewall rules. Required are iptables version
440 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
441 the _updown_espmark template, so that no INPUT mangle rules
442 are required any more.
444 - added support of DPD restart mode
446 - ipsec starter now allows the use of wildcards in include
447 statements as e.g. in "include /etc/my_ipsec/*.conf".
448 Patch courtesy of Matthias Haas.
450 - the Netscape OID 'employeeNumber' is now recognized and can be
451 used as a Relative Distinguished Name in certificates.
457 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
458 command and not of ipsec setup any more.
460 - ipsec starter now supports AH authentication in conjunction with
461 ESP encryption. AH authentication is configured in ipsec.conf
462 via the auth=ah parameter.
464 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
465 ipsec whack --scencrypt|scdecrypt <args>.
467 - get_sa_info() now determines for the native netkey IPsec stack
468 the exact time of the last use of an active eroute. This information
469 is used by the Dead Peer Detection algorithm and is also displayed by
470 the ipsec status command.
476 - running under the native Linux 2.6 IPsec stack, the function
477 get_sa_info() is called by ipsec auto --status to display the current
478 number of transmitted bytes per IPsec SA.
480 - get_sa_info() is also used by the Dead Peer Detection process to detect
481 recent ESP activity. If ESP traffic was received from the peer within
482 the last dpd_delay interval then no R_Y_THERE notification must be sent.
484 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
485 in ID_DER_ASN1_DN identities. The following notations are possible:
487 rightid="unstructuredName=John Doe"
488 rightid="UN=John Doe"
490 - fixed a long-standing bug which caused PSK-based roadwarrior connections
491 to segfault in the function id.c:same_id() called by keys.c:get_secret()
492 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
499 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
501 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
503 - in order to guarantee backwards-compatibility with the script-based
504 auto function (e.g. auto --replace), the ipsec starter scripts stores
505 the defaultroute information in the temporary file /var/run/ipsec.info.
507 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
508 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
511 - the ipsec starter now also recognizes the parameters authby=never and
512 type=passthrough|pass|drop|reject.
518 - ipsec starter now supports the also parameter which allows
519 a modular structure of the connection definitions. Thus
520 "ipsec start" is now ready to replace "ipsec setup".
526 - Mathieu Lafon's popular ipsec starter tool has been added to the
527 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
528 for his integration work. ipsec starter is a C program which is going
529 to replace the various shell and awk starter scripts (setup, _plutoload,
530 _plutostart, _realsetup, _startklips, _confread, and auto). Since
531 ipsec.conf is now parsed only once, the starting of multiple tunnels is
532 accelerated tremedously.
534 - Added support of %defaultroute to the ipsec starter. If the IP address
535 changes, a HUP signal to the ipsec starter will automatically
536 reload pluto's connections.
538 - moved most compile time configurations from pluto/Makefile to
539 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
540 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
542 - removed the ipsec verify and ipsec newhostkey commands
544 - fixed some 64-bit issues in formatted print statements
546 - The scepclient functionality implementing the Simple Certificate
547 Enrollment Protocol (SCEP) is nearly complete but hasn't been
554 - CA certicates are now automatically loaded from a smartcard
555 or USB crypto token and appear in the ipsec auto --listcacerts
562 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
563 library that does not support the C_Encrypt() Cryptoki
564 function (e.g. OpenSC), the RSA encryption is done in
565 software using the public key fetched from the smartcard.
567 - The scepclient function now allows to define the
568 validity of a self-signed certificate using the --days,
569 --startdate, and --enddate options. The default validity
570 has been changed from one year to five years.
576 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
577 interface to other applications for RSA encryption and decryption
578 via the whack interface. Notation:
580 ipsec whack --scencrypt <data>
581 [--inbase 16|hex|64|base64|256|text|ascii]
582 [--outbase 16|hex|64|base64|256|text|ascii]
585 ipsec whack --scdecrypt <data>
586 [--inbase 16|hex|64|base64|256|text|ascii]
587 [--outbase 16|hex|64|base64|256|text|ascii]
590 The default setting for inbase and outbase is hex.
592 The new proxy interface can be used for securing symmetric
593 encryption keys required by the cryptoloop or dm-crypt
594 disk encryption schemes, especially in the case when
595 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
598 - if the file /etc/ipsec.secrets is lacking during the startup of
599 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
600 containing a 2048 bit RSA private key and a matching self-signed
601 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
602 is automatically generated by calling the function
604 ipsec scepclient --out pkcs1 --out cert-self
606 scepclient was written by Jan Hutter and Martin Willi, students
607 at the University of Applied Sciences in Rapperswil, Switzerland.
613 - the current extension of the PKCS#7 framework introduced
614 a parsing error in PKCS#7 wrapped X.509 certificates that are
615 e.g. transmitted by Windows XP when multi-level CAs are used.
616 the parsing syntax has been fixed.
618 - added a patch by Gerald Richter which tolerates multiple occurrences
619 of the ipsec0 interface when using KLIPS.
625 - with gawk-3.1.4 the word "default2 has become a protected
626 keyword for use in switch statements and cannot be used any
627 more in the strongSwan scripts. This problem has been
628 solved by renaming "default" to "defaults" and "setdefault"
629 in the scripts _confread and auto, respectively.
631 - introduced the parameter leftsendcert with the values
633 always|yes (the default, always send a cert)
634 ifasked (send the cert only upon a cert request)
635 never|no (never send a cert, used for raw RSA keys and
638 - fixed the initialization of the ESP key length to a default of
639 128 bits in the case that the peer does not send a key length
640 attribute for AES encryption.
642 - applied Herbert Xu's uniqueIDs patch
644 - applied Herbert Xu's CLOEXEC patches
650 - CRLs can now be cached also in the case when the issuer's
651 certificate does not contain a subjectKeyIdentifier field.
652 In that case the subjectKeyIdentifier is computed by pluto as the
653 160 bit SHA-1 hash of the issuer's public key in compliance
654 with section 4.2.1.2 of RFC 3280.
656 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
657 not only multiple Quick Modes of a given connection but also
658 multiple connections between two security gateways.
664 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
665 installed either by setting auto=route in ipsec.conf or by
666 a connection put into hold, generates an XFRM_AQUIRE event
667 for each packet that wants to use the not-yet exisiting
668 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
669 the Quick Mode queue, causing multiple IPsec SA to be
670 established in rapid succession. Starting with strongswan-2.5.1
671 only a single IPsec SA is established per host-pair connection.
673 - Right after loading the PKCS#11 module, all smartcard slots are
674 searched for certificates. The result can be viewed using
677 ipsec auto --listcards
679 The certificate objects found in the slots are numbered
680 starting with #1, #2, etc. This position number can be used to address
681 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
682 in ipsec.conf and ipsec.secrets, respectively:
684 %smartcard (selects object #1)
685 %smartcard#1 (selects object #1)
686 %smartcard#3 (selects object #3)
688 As an alternative the existing retrieval scheme can be used:
690 %smartcard:45 (selects object with id=45)
691 %smartcard0 (selects first object in slot 0)
692 %smartcard4:45 (selects object in slot 4 with id=45)
694 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
695 private key flags either C_Sign() or C_Decrypt() is used
696 to generate a signature.
698 - The output buffer length parameter siglen in C_Sign()
699 is now initialized to the actual size of the output
700 buffer prior to the function call. This fixes the
701 CKR_BUFFER_TOO_SMALL error that could occur when using
702 the OpenSC PKCS#11 module.
704 - Changed the initialization of the PKCS#11 CK_MECHANISM in
705 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
707 - Refactored the RSA public/private key code and transferred it
708 from keys.c to the new pkcs1.c file as a preparatory step
709 towards the release of the SCEP client.
715 - The loading of a PKCS#11 smartcard library module during
716 runtime does not require OpenSC library functions any more
717 because the corresponding code has been integrated into
718 smartcard.c. Also the RSAREF pkcs11 header files have been
719 included in a newly created pluto/rsaref directory so that
720 no external include path has to be defined any longer.
722 - A long-awaited feature has been implemented at last:
723 The local caching of CRLs fetched via HTTP or LDAP, activated
724 by the parameter cachecrls=yes in the config setup section
725 of ipsec.conf. The dynamically fetched CRLs are stored under
726 a unique file name containing the issuer's subjectKeyID
727 in /etc/ipsec.d/crls.
729 - Applied a one-line patch courtesy of Michael Richardson
730 from the Openswan project which fixes the kernel-oops
731 in KLIPS when an snmp daemon is running on the same box.
737 - Eliminated null length CRL distribution point strings.
739 - Fixed a trust path evaluation bug introduced with 2.4.3
745 - Improved the joint OCSP / CRL revocation policy.
746 OCSP responses have precedence over CRL entries.
748 - Introduced support of CRLv2 reason codes.
750 - Fixed a bug with key-pad equipped readers which caused
751 pluto to prompt for the pin via the console when the first
752 occasion to enter the pin via the key-pad was missed.
754 - When pluto is built with LDAP_V3 enabled, the library
755 liblber required by newer versions of openldap is now
762 - Added the _updown_espmark template which requires all
763 incoming ESP traffic to be marked with a default mark
766 - Introduced the pkcs11keepstate parameter in the config setup
767 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
768 session and login states are kept as long as possible during
769 the lifetime of pluto. This means that a PIN entry via a key
770 pad has to be done only once.
772 - Introduced the pkcs11module parameter in the config setup
773 section of ipsec.conf which specifies the PKCS#11 module
774 to be used with smart cards. Example:
776 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
778 - Added support of smartcard readers equipped with a PIN pad.
780 - Added patch by Jay Pfeifer which detects when netkey
781 modules have been statically built into the Linux 2.6 kernel.
783 - Added two patches by Herbert Xu. The first uses ip xfrm
784 instead of setkey to flush the IPsec policy database. The
785 second sets the optional flag in inbound IPComp SAs only.
787 - Applied Ulrich Weber's patch which fixes an interoperability
788 problem between native IPsec and KLIPS systems caused by
789 setting the replay window to 32 instead of 0 for ipcomp.
795 - Fixed a bug which caused an unwanted Mode Config request
796 to be initiated in the case where "right" was used to denote
797 the local side in ipsec.conf and "left" the remote side,
798 contrary to the recommendation that "right" be remote and
805 - updated Vendor ID to strongSwan-2.4.0
807 - updated copyright statement to include David Buechi and
814 - strongSwan now communicates with attached smartcards and
815 USB crypto tokens via the standardized PKCS #11 interface.
816 By default the OpenSC library from www.opensc.org is used
817 but any other PKCS#11 library could be dynamically linked.
818 strongSwan's PKCS#11 API was implemented by David Buechi
819 and Michael Meier, both graduates of the Zurich University
820 of Applied Sciences in Winterthur, Switzerland.
822 - When a %trap eroute is triggered by an outgoing IP packet
823 then the native IPsec stack of the Linux 2.6 kernel [often/
824 always?] returns an XFRM_ACQUIRE message with an undefined
825 protocol family field and the connection setup fails.
826 As a workaround IPv4 (AF_INET) is now assumed.
828 - the results of the UML test scenarios are now enhanced
829 with block diagrams of the virtual network topology used
830 in a particular test.
836 - fixed IV used to decrypt informational messages.
837 This bug was introduced with Mode Config functionality.
839 - fixed NCP Vendor ID.
841 - undid one of Ulrich Weber's maximum udp size patches
842 because it caused a segmentation fault with NAT-ed
845 - added UML scenarios wildcards and attr-cert which
846 demonstrate the implementation of IPsec policies based
847 on wildcard parameters contained in Distinguished Names and
848 on X.509 attribute certificates, respectively.
854 - Added basic Mode Config functionality
856 - Added Mathieu Lafon's patch which upgrades the status of
857 the NAT-Traversal implementation to RFC 3947.
859 - The _startklips script now also loads the xfrm4_tunnel
862 - Added Ulrich Weber's netlink replay window size and
863 maximum udp size patches.
865 - UML testing now uses the Linux 2.6.10 UML kernel by default.
871 - Eric Marchionni and Patrik Rayo, both recent graduates from
872 the Zuercher Hochschule Winterthur in Switzerland, created a
873 User-Mode-Linux test setup for strongSwan. For more details
874 please read the INSTALL and README documents in the testing
877 - Full support of group attributes based on X.509 attribute
878 certificates. Attribute certificates can be generated
879 using the openac facility. For more details see
883 The group attributes can be used in connection definitions
884 in order to give IPsec access to specific user groups.
885 This is done with the new parameter left|rightgroups as in
887 rightgroups="Research, Sales"
889 giving access to users possessing the group attributes
890 Research or Sales, only.
892 - In Quick Mode clients with subnet mask /32 are now
893 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
894 fix rekeying problems with the SafeNet/SoftRemote and NCP
895 Secure Entry Clients.
897 - Changed the defaults of the ikelifetime and keylife parameters
898 to 3h and 1h, respectively. The maximum allowable values are
899 now both set to 24 h.
901 - Suppressed notification wars between two IPsec peers that
902 could e.g. be triggered by incorrect ISAKMP encryption.
904 - Public RSA keys can now have identical IDs if either the
905 issuing CA or the serial number is different. The serial
906 number of a certificate is now shown by the command
908 ipsec auto --listpubkeys
914 - Added Tuomo Soini's sourceip feature which allows a strongSwan
915 roadwarrior to use a fixed Virtual IP (see README section 2.6)
916 and reduces the well-known four tunnel case on VPN gateways to
917 a single tunnel definition (see README section 2.4).
919 - Fixed a bug occuring with NAT-Traversal enabled when the responder
920 suddenly turns initiator and the initiator cannot find a matching
921 connection because of the floated IKE port 4500.
923 - Removed misleading ipsec verify command from barf.
925 - Running under the native IP stack, ipsec --version now shows
926 the Linux kernel version (courtesy to the Openswan project).
932 - Introduced the ipsec auto --listalgs monitoring command which lists
933 all currently registered IKE and ESP algorithms.
935 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
936 is set and the first proposed transform does not match.
938 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
939 occuring when a smartcard is present.
941 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
943 - Fixed the printing of the notification names (null)
945 - Applied another of Herbert Xu's Netlink patches.
951 - Support of Dead Peer Detection. The connection parameter
955 activates DPD for the given connection.
957 - The default Opportunistic Encryption (OE) policy groups are not
958 automatically included anymore. Those wishing to activate OE can include
959 the policy group with the following statement in ipsec.conf:
961 include /etc/ipsec.d/examples/oe.conf
963 The default for [right|left]rsasigkey is now set to %cert.
965 - strongSwan now has a Vendor ID of its own which can be activated
966 using the compile option VENDORID
968 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
970 - Applied Herbert Xu's patch fixing an ESPINUDP problem
972 - Applied Herbert Xu's patch setting source/destination port numbers.
974 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
975 lost during the migration from SuperFreeS/WAN.
977 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
979 - Fixed the unsharing of alg parameters when instantiating group
986 - Thomas Walpuski made me aware of a potential DoS attack via
987 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
988 certificates in Pluto's authority certificate store. This vulnerability
989 was fixed by establishing trust in CA candidate certificates up to a
990 trusted root CA prior to insertion into Pluto's chained list.
992 - replaced the --assign option by the -v option in the auto awk script
993 in order to make it run with mawk under debian/woody.
999 - Split of the status information between ipsec auto --status (concise)
1000 and ipsec auto --statusall (verbose). Both commands can be used with
1001 an optional connection selector:
1003 ipsec auto --status[all] <connection_name>
1005 - Added the description of X.509 related features to the ipsec_auto(8)
1008 - Hardened the ASN.1 parser in debug mode, especially the printing
1009 of malformed distinguished names.
1011 - The size of an RSA public key received in a certificate is now restricted to
1013 512 bits <= modulus length <= 8192 bits.
1015 - Fixed the debug mode enumeration.
1021 - Fixed another PKCS#7 vulnerability which could lead to an
1022 endless loop while following the X.509 trust chain.
1028 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
1029 that accepted end certificates having identical issuer and subject
1030 distinguished names in a multi-tier X.509 trust chain.
1036 - Removed all remaining references to ipsec_netlink.h in KLIPS.
1042 - The new "ca" section allows to define the following parameters:
1045 cacert=koolCA.pem # cacert of kool CA
1046 ocspuri=http://ocsp.kool.net:8001 # ocsp server
1047 ldapserver=ldap.kool.net # default ldap server
1048 crluri=http://www.kool.net/kool.crl # crl distribution point
1049 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
1050 auto=add # add, ignore
1052 The ca definitions can be monitored via the command
1054 ipsec auto --listcainfos
1056 - Fixed cosmetic corruption of /proc filesystem by integrating
1057 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
1063 - Added support for the 818043 NAT-Traversal update of Microsoft's
1064 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
1066 - A symbolic link to libcrypto is now added in the kernel sources
1067 during kernel compilation
1069 - Fixed a couple of 64 bit issues (mostly casts to int).
1070 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
1072 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
1073 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
1074 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
1080 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
1081 certificate extension which contains no generalName item) can cause
1082 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
1083 been hardened to make it more robust against malformed ASN.1 objects.
1085 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
1086 Linux 2.6 IPsec stack.
1092 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12