4 - Fixed error in the ordering of the certinfo_t records in the ocsp cache that
5 caused multiple entries of the same serial number to be created.
11 - The default _updown script now dynamically inserts and removes ip6tables
12 firewall rules if leftfirewall=yes is set in IPv6 connections. New IPv6
13 net-net and roadwarrior (PSK/RSA) scenarios for both IKEv1 and IKEV2 were
16 - Implemented RFC4478 repeated authentication to force EAP/Virtual-IP clients
17 to reestablish an IKE_SA within a given timeframe.
19 - strongSwan Manager supports configuration listing, initiation and termination
22 - Fixes and improvements to multithreading code.
24 - IKEv2 plugins have been renamed to libcharon-* to avoid naming conflicts.
25 Make sure to remove the old plugins in $libexecdir/ipsec, otherwise they get
32 - Removed recursive pthread mutexes since uClibc doesn't support them.
38 - In NAT traversal situations and multiple queued Quick Modes,
39 those pending connections inserted by auto=start after the
40 port floating from 500 to 4500 were erronously deleted.
42 - Added a "forceencaps" connection parameter to enforce UDP encapsulation
43 to surmount restrictive firewalls. NAT detection payloads are faked to
44 simulate a NAT situation and trick the other peer into NAT mode (IKEv2 only).
46 - Preview of strongSwan Manager, a web based configuration and monitoring
47 application. It uses a new XML control interface to query the IKEv2 daemon
48 (see http://trac.strongswan.org/wiki/Manager).
50 - Experimental SQLite configuration backend which will provide the configuration
51 interface for strongSwan Manager in future releases.
53 - Further improvements to MOBIKE support.
59 - Since some third party IKEv2 implementations run into
60 problems with strongSwan announcing MOBIKE capability per
61 default, MOBIKE can be disabled on a per-connection-basis
62 using the mobike=no option. Whereas mobike=no disables the
63 sending of the MOBIKE_SUPPORTED notification and the floating
64 to UDP port 4500 with the IKE_AUTH request even if no NAT
65 situation has been detected, strongSwan will still support
66 MOBIKE acting as a responder.
68 - the default ipsec routing table plus its corresponding priority
69 used for inserting source routes has been changed from 100 to 220.
70 It can be configured using the --with-ipsec-routing-table and
71 --with-ipsec-routing-table-prio options.
73 - the --enable-integrity-test configure option tests the
74 integrity of the libstrongswan crypto code during the charon
77 - the --disable-xauth-vid configure option disables the sending
78 of the XAUTH vendor ID. This can be used as a workaround when
79 interoperating with some Windows VPN clients that get into
80 trouble upon reception of an XAUTH VID without eXtended
81 AUTHentication having been configured.
83 - ipsec stroke now supports the rereadsecrets, rereadaacerts,
84 rereadacerts, and listacerts options.
90 - If a DNS lookup failure occurs when resolving right=%<FQDN>
91 or right=<FQDN> combined with rightallowany=yes then the
92 connection is not updated by ipsec starter thus preventing
93 the disruption of an active IPsec connection. Only if the DNS
94 lookup successfully returns with a changed IP address the
95 corresponding connection definition is updated.
97 - Routes installed by the keying daemons are now in a separate
98 routing table with the ID 100 to avoid conflicts with the main
99 table. Route lookup for IKEv2 traffic is done in userspace to ignore
100 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
106 - The pluto IKEv1 daemon now exhibits the same behaviour as its
107 IKEv2 companion charon by inserting an explicit route via the
108 _updown script only if a sourceip exists. This is admissible
109 since routing through the IPsec tunnel is handled automatically
110 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
111 parameter is not required any more.
113 - The new IKEv1 parameter right|leftallowany parameters helps to handle
114 the case where both peers possess dynamic IP addresses that are
115 usually resolved using DynDNS or a similar service. The configuration
120 can be used by the initiator to start up a connection to a peer
121 by resolving peer.foo.bar into the currently allocated IP address.
122 Thanks to the rightallowany flag the connection behaves later on
127 so that the peer can rekey the connection as an initiator when his
128 IP address changes. An alternative notation is
132 which will implicitly set rightallowany=yes.
134 - ipsec starter now fails more gracefully in the presence of parsing
135 errors. Flawed ca and conn section are discarded and pluto is started
136 if non-fatal errors only were encountered. If right=%peer.foo.bar
137 cannot be resolved by DNS then right=%any will be used so that passive
138 connections as a responder are still possible.
140 - The new pkcs11initargs parameter that can be placed in the
141 setup config section of /etc/ipsec.conf allows the definition
142 of an argument string that is used with the PKCS#11 C_Initialize()
143 function. This non-standard feature is required by the NSS softoken
144 library. This patch was contributed by Robert Varga.
146 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
147 which caused a segmentation fault in the presence of unknown
148 or misspelt keywords in ipsec.conf. This bug fix was contributed
151 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
152 address configuration changes and updates IKE and IPsec SAs dynamically.
158 - IKEv2 peer configuration selection now can be based on a given
159 certification authority using the rightca= statement.
161 - IKEv2 authentication based on RSA signatures now can handle multiple
162 certificates issued for a given peer ID. This allows a smooth transition
163 in the case of a peer certificate renewal.
165 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
166 client and returning requested virtual IPs using rightsourceip=%config
167 on the server. If the server does not support configuration payloads, the
168 client enforces its leftsourceip parameter.
170 - The ./configure options --with-uid/--with-gid allow pluto and charon
171 to drop their privileges to a minimum and change to an other UID/GID. This
172 improves the systems security, as a possible intruder may only get the
173 CAP_NET_ADMIN capability.
175 - Further modularization of charon: Pluggable control interface and
176 configuration backend modules provide extensibility. The control interface
177 for stroke is included, and further interfaces using DBUS (NetworkManager)
178 or XML are on the way. A backend for storing configurations in the daemon
179 is provided and more advanced backends (using e.g. a database) are trivial
182 - Fixed a compilation failure in libfreeswan occuring with Linux kernel
189 - Support for an additional Diffie-Hellman exchange when creating/rekeying
190 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
191 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
192 is implemented properly for rekeying.
194 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
195 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
197 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
199 - Added support for EAP modules which do not establish an MSK.
201 - Removed the dependencies from the /usr/include/linux/ headers by
202 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
204 - crlNumber is now listed by ipsec listcrls
206 - The xauth_modules.verify_secret() function now passes the
213 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
214 cookies are enabled and protect against DoS attacks with faked source
215 addresses. Number of IKE_SAs in CONNECTING state is also limited per
216 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
217 compared to properly detect retransmissions and incoming retransmits are
218 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
220 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
221 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
222 enabled by cachecrls=yes.
224 - Added the configuration options --enable-nat-transport which enables
225 the potentially insecure NAT traversal for IPsec transport mode and
226 --disable-vendor-id which disables the sending of the strongSwan
229 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
230 a segmentation fault if a malformed payload was detected in the
231 IKE MR2 message and pluto tried to send an encrypted notification
234 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
235 with Windows 2003 Server which uses a wrong VID hash.
241 - Support of SHA2_384 hash function for protecting IKEv1
242 negotiations and support of SHA2 signatures in X.509 certificates.
244 - Fixed a serious bug in the computation of the SHA2-512 HMAC
245 function. Introduced automatic self-test of all IKEv1 hash
246 and hmac functions during pluto startup. Failure of a self-test
247 currently issues a warning only but does not exit pluto [yet].
249 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
251 - Full support of CA information sections. ipsec listcainfos
252 now shows all collected crlDistributionPoints and OCSP
255 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
256 This feature requires the HTTP fetching capabilities of the libcurl
257 library which must be enabled by setting the --enable-http configure
260 - Refactored core of the IKEv2 message processing code, allowing better
261 code reuse and separation.
263 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
264 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
265 by the requestor and installed in a resolv.conf file.
267 - The IKEv2 daemon charon installs a route for each IPsec policy to use
268 the correct source address even if an application does not explicitly
271 - Integrated the EAP framework into charon which loads pluggable EAP library
272 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
273 on the client side, while the "eap" parameter on the server side defines
274 the EAP method to use for client authentication.
275 A generic client side EAP-Identity module and an EAP-SIM authentication
276 module using a third party card reader implementation are included.
278 - Added client side support for cookies.
280 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
281 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
282 fixes to enhance interoperability with other implementations.
288 - strongSwan now interoperates with the NCP Secure Entry Client,
289 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
290 XAUTH and Mode Config.
292 - UNITY attributes are now recognized and UNITY_BANNER is set
299 - IKEv1: Support for extended authentication (XAUTH) in combination
300 with ISAKMP Main Mode RSA or PSK authentication. Both client and
301 server side were implemented. Handling of user credentials can
302 be done by a run-time loadable XAUTH module. By default user
303 credentials are stored in ipsec.secrets.
305 - IKEv2: Support for reauthentication when rekeying
307 - IKEv2: Support for transport mode
309 - fixed a lot of bugs related to byte order
311 - various other bugfixes
317 - IKEv1: Implementation of ModeConfig push mode via the new connection
318 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
320 - IKEv1: The command ipsec statusall now shows "DPD active" for all
321 ISAKMP SAs that are under active Dead Peer Detection control.
323 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
324 Instead of logger, special printf() functions are used to directly
325 print objects like hosts (%H) identifications (%D), certificates (%Q),
326 etc. The number of debugging levels have been reduced to:
328 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
330 The debugging levels can either be specified statically in ipsec.conf as
333 charondebug="lib 1, cfg 3, net 2"
335 or changed at runtime via stroke as
337 ipsec stroke loglevel cfg 2
343 - Implemented full support for IPv6-in-IPv6 tunnels.
345 - Added configuration options for dead peer detection in IKEv2. dpd_action
346 types "clear", "hold" and "restart" are supported. The dpd_timeout
347 value is not used, as the normal retransmission policy applies to
348 detect dead peers. The dpd_delay parameter enables sending of empty
349 informational message to detect dead peers in case of inactivity.
351 - Added support for preshared keys in IKEv2. PSK keys configured in
352 ipsec.secrets are loaded. The authby parameter specifies the authentication
353 method to authentificate ourself, the other peer may use PSK or RSA.
355 - Changed retransmission policy to respect the keyingtries parameter.
357 - Added private key decryption. PEM keys encrypted with AES-128/192/256
358 or 3DES are supported.
360 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
363 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
364 signed with such a hash algorithm.
366 - Added initial support for updown scripts. The actions up-host/client and
367 down-host/client are executed. The leftfirewall=yes parameter
368 uses the default updown script to insert dynamic firewall rules, a custom
369 updown script may be specified with the leftupdown parameter.
375 - Added support for the auto=route ipsec.conf parameter and the
376 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
377 CHILD_SAs dynamically on demand when traffic is detected by the
380 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
381 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
382 new keys are generated using perfect forward secrecy. An optional flag
383 which enforces reauthentication will be implemented later.
385 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
386 algorithm configuration statements.
392 - Full X.509 certificate trust chain verification has been implemented.
393 End entity certificates can be exchanged via CERT payloads. The current
394 default is leftsendcert=always, since CERTREQ payloads are not supported
395 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
397 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
398 would offer more possibilities for traffic selection, but the Linux kernel
399 currently does not support it. That's why we stick with these simple
400 ipsec.conf rules for now.
402 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
403 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
406 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
407 notify payloads to detect NAT routers between the peers. It switches
408 to port 4500, uses UDP encapsulated ESP packets, handles peer address
409 changes gracefully and sends keep alive message periodically.
411 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
412 rekeying, more shared code, cleaner design, proper retransmission
413 and a more extensible code base.
415 - The mixed PSK/RSA roadwarrior detection capability introduced by the
416 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
417 payloads by the responder right before any defined IKE Main Mode state had
418 been established. Although any form of bad proposal syntax was being correctly
419 detected by the payload parser, the subsequent error handler didn't check
420 the state pointer before logging current state information, causing an
421 immediate crash of the pluto keying daemon due to a NULL pointer.
427 - Added algorithm selection to charon: New default algorithms for
428 ike=aes128-sha-modp2048, as both daemons support it. The default
429 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
430 the ike/esp parameter the same way as pluto. As this syntax does
431 not allow specification of a pseudo random function, the same
432 algorithm as for integrity is used (currently sha/md5). Supported
434 Encryption: aes128, aes192, aes256
435 Integrity/PRF: md5, sha (using hmac)
436 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
438 Encryption: aes128, aes192, aes256, 3des, blowfish128,
439 blowfish192, blowfish256
441 More IKE encryption algorithms will come after porting libcrypto into
444 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
445 perfect forward secrecy is used. The rekeying parameters rekey,
446 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
447 when using IKEv2. WARNING: charon currently is unable to handle
448 simultaneous rekeying. To avoid such a situation, use a large
449 rekeyfuzz, or even better, set rekey=no on one peer.
451 - support for host2host, net2net, host2net (roadwarrior) tunnels
452 using predefined RSA certificates (see uml scenarios for
453 configuration examples).
455 - new build environment featuring autotools. Features such
456 as HTTP, LDAP and smartcard support may be enabled using
457 the ./configure script. Changing install directories
458 is possible, too. See ./configure --help for more details.
460 - better integration of charon with ipsec starter, which allows
461 (almost) transparent operation with both daemons. charon
462 handles ipsec commands up, down, status, statusall, listall,
463 listcerts and allows proper load, reload and delete of connections
470 - initial support of the IKEv2 protocol. Connections in
471 ipsec.conf designated by keyexchange=ikev2 are negotiated
472 by the new IKEv2 charon keying daemon whereas those marked
473 by keyexchange=ikev1 or the default keyexchange=ike are
474 handled thy the IKEv1 pluto keying daemon. Currently only
475 a limited subset of functions are available with IKEv2
476 (Default AES encryption, authentication based on locally
477 imported X.509 certificates, unencrypted private RSA keys
478 in PKCS#1 file format, limited functionality of the ipsec
485 - the dynamic iptables rules from the _updown_x509 template
486 for KLIPS and the _updown_policy template for NETKEY have
487 been merged into the default _updown script. The existing
488 left|rightfirewall keyword causes the automatic insertion
489 and deletion of ACCEPT rules for tunneled traffic upon
490 the successful setup and teardown of an IPsec SA, respectively.
491 left|rightfirwall can be used with KLIPS under any Linux 2.4
492 kernel or with NETKEY under a Linux kernel version >= 2.6.16
493 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
494 kernel version < 2.6.16 which does not support IPsec policy
495 matching yet, please continue to use a copy of the _updown_espmark
496 template loaded via the left|rightupdown keyword.
498 - a new left|righthostaccess keyword has been introduced which
499 can be used in conjunction with left|rightfirewall and the
500 default _updown script. By default leftfirewall=yes inserts
501 a bi-directional iptables FORWARD rule for a local client network
502 with a netmask different from 255.255.255.255 (single host).
503 This does not allow to access the VPN gateway host via its
504 internal network interface which is part of the client subnet
505 because an iptables INPUT and OUTPUT rule would be required.
506 lefthostaccess=yes will cause this additional ACCEPT rules to
509 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
510 payload is preparsed in order to find out whether the roadwarrior
511 requests PSK or RSA so that a matching connection candidate can
518 - the new _updown_policy template allows ipsec policy based
519 iptables firewall rules. Required are iptables version
520 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
521 the _updown_espmark template, so that no INPUT mangle rules
522 are required any more.
524 - added support of DPD restart mode
526 - ipsec starter now allows the use of wildcards in include
527 statements as e.g. in "include /etc/my_ipsec/*.conf".
528 Patch courtesy of Matthias Haas.
530 - the Netscape OID 'employeeNumber' is now recognized and can be
531 used as a Relative Distinguished Name in certificates.
537 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
538 command and not of ipsec setup any more.
540 - ipsec starter now supports AH authentication in conjunction with
541 ESP encryption. AH authentication is configured in ipsec.conf
542 via the auth=ah parameter.
544 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
545 ipsec whack --scencrypt|scdecrypt <args>.
547 - get_sa_info() now determines for the native netkey IPsec stack
548 the exact time of the last use of an active eroute. This information
549 is used by the Dead Peer Detection algorithm and is also displayed by
550 the ipsec status command.
556 - running under the native Linux 2.6 IPsec stack, the function
557 get_sa_info() is called by ipsec auto --status to display the current
558 number of transmitted bytes per IPsec SA.
560 - get_sa_info() is also used by the Dead Peer Detection process to detect
561 recent ESP activity. If ESP traffic was received from the peer within
562 the last dpd_delay interval then no R_Y_THERE notification must be sent.
564 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
565 in ID_DER_ASN1_DN identities. The following notations are possible:
567 rightid="unstructuredName=John Doe"
568 rightid="UN=John Doe"
570 - fixed a long-standing bug which caused PSK-based roadwarrior connections
571 to segfault in the function id.c:same_id() called by keys.c:get_secret()
572 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
579 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
581 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
583 - in order to guarantee backwards-compatibility with the script-based
584 auto function (e.g. auto --replace), the ipsec starter scripts stores
585 the defaultroute information in the temporary file /var/run/ipsec.info.
587 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
588 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
591 - the ipsec starter now also recognizes the parameters authby=never and
592 type=passthrough|pass|drop|reject.
598 - ipsec starter now supports the also parameter which allows
599 a modular structure of the connection definitions. Thus
600 "ipsec start" is now ready to replace "ipsec setup".
606 - Mathieu Lafon's popular ipsec starter tool has been added to the
607 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
608 for his integration work. ipsec starter is a C program which is going
609 to replace the various shell and awk starter scripts (setup, _plutoload,
610 _plutostart, _realsetup, _startklips, _confread, and auto). Since
611 ipsec.conf is now parsed only once, the starting of multiple tunnels is
612 accelerated tremedously.
614 - Added support of %defaultroute to the ipsec starter. If the IP address
615 changes, a HUP signal to the ipsec starter will automatically
616 reload pluto's connections.
618 - moved most compile time configurations from pluto/Makefile to
619 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
620 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
622 - removed the ipsec verify and ipsec newhostkey commands
624 - fixed some 64-bit issues in formatted print statements
626 - The scepclient functionality implementing the Simple Certificate
627 Enrollment Protocol (SCEP) is nearly complete but hasn't been
634 - CA certicates are now automatically loaded from a smartcard
635 or USB crypto token and appear in the ipsec auto --listcacerts
642 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
643 library that does not support the C_Encrypt() Cryptoki
644 function (e.g. OpenSC), the RSA encryption is done in
645 software using the public key fetched from the smartcard.
647 - The scepclient function now allows to define the
648 validity of a self-signed certificate using the --days,
649 --startdate, and --enddate options. The default validity
650 has been changed from one year to five years.
656 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
657 interface to other applications for RSA encryption and decryption
658 via the whack interface. Notation:
660 ipsec whack --scencrypt <data>
661 [--inbase 16|hex|64|base64|256|text|ascii]
662 [--outbase 16|hex|64|base64|256|text|ascii]
665 ipsec whack --scdecrypt <data>
666 [--inbase 16|hex|64|base64|256|text|ascii]
667 [--outbase 16|hex|64|base64|256|text|ascii]
670 The default setting for inbase and outbase is hex.
672 The new proxy interface can be used for securing symmetric
673 encryption keys required by the cryptoloop or dm-crypt
674 disk encryption schemes, especially in the case when
675 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
678 - if the file /etc/ipsec.secrets is lacking during the startup of
679 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
680 containing a 2048 bit RSA private key and a matching self-signed
681 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
682 is automatically generated by calling the function
684 ipsec scepclient --out pkcs1 --out cert-self
686 scepclient was written by Jan Hutter and Martin Willi, students
687 at the University of Applied Sciences in Rapperswil, Switzerland.
693 - the current extension of the PKCS#7 framework introduced
694 a parsing error in PKCS#7 wrapped X.509 certificates that are
695 e.g. transmitted by Windows XP when multi-level CAs are used.
696 the parsing syntax has been fixed.
698 - added a patch by Gerald Richter which tolerates multiple occurrences
699 of the ipsec0 interface when using KLIPS.
705 - with gawk-3.1.4 the word "default2 has become a protected
706 keyword for use in switch statements and cannot be used any
707 more in the strongSwan scripts. This problem has been
708 solved by renaming "default" to "defaults" and "setdefault"
709 in the scripts _confread and auto, respectively.
711 - introduced the parameter leftsendcert with the values
713 always|yes (the default, always send a cert)
714 ifasked (send the cert only upon a cert request)
715 never|no (never send a cert, used for raw RSA keys and
718 - fixed the initialization of the ESP key length to a default of
719 128 bits in the case that the peer does not send a key length
720 attribute for AES encryption.
722 - applied Herbert Xu's uniqueIDs patch
724 - applied Herbert Xu's CLOEXEC patches
730 - CRLs can now be cached also in the case when the issuer's
731 certificate does not contain a subjectKeyIdentifier field.
732 In that case the subjectKeyIdentifier is computed by pluto as the
733 160 bit SHA-1 hash of the issuer's public key in compliance
734 with section 4.2.1.2 of RFC 3280.
736 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
737 not only multiple Quick Modes of a given connection but also
738 multiple connections between two security gateways.
744 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
745 installed either by setting auto=route in ipsec.conf or by
746 a connection put into hold, generates an XFRM_AQUIRE event
747 for each packet that wants to use the not-yet exisiting
748 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
749 the Quick Mode queue, causing multiple IPsec SA to be
750 established in rapid succession. Starting with strongswan-2.5.1
751 only a single IPsec SA is established per host-pair connection.
753 - Right after loading the PKCS#11 module, all smartcard slots are
754 searched for certificates. The result can be viewed using
757 ipsec auto --listcards
759 The certificate objects found in the slots are numbered
760 starting with #1, #2, etc. This position number can be used to address
761 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
762 in ipsec.conf and ipsec.secrets, respectively:
764 %smartcard (selects object #1)
765 %smartcard#1 (selects object #1)
766 %smartcard#3 (selects object #3)
768 As an alternative the existing retrieval scheme can be used:
770 %smartcard:45 (selects object with id=45)
771 %smartcard0 (selects first object in slot 0)
772 %smartcard4:45 (selects object in slot 4 with id=45)
774 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
775 private key flags either C_Sign() or C_Decrypt() is used
776 to generate a signature.
778 - The output buffer length parameter siglen in C_Sign()
779 is now initialized to the actual size of the output
780 buffer prior to the function call. This fixes the
781 CKR_BUFFER_TOO_SMALL error that could occur when using
782 the OpenSC PKCS#11 module.
784 - Changed the initialization of the PKCS#11 CK_MECHANISM in
785 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
787 - Refactored the RSA public/private key code and transferred it
788 from keys.c to the new pkcs1.c file as a preparatory step
789 towards the release of the SCEP client.
795 - The loading of a PKCS#11 smartcard library module during
796 runtime does not require OpenSC library functions any more
797 because the corresponding code has been integrated into
798 smartcard.c. Also the RSAREF pkcs11 header files have been
799 included in a newly created pluto/rsaref directory so that
800 no external include path has to be defined any longer.
802 - A long-awaited feature has been implemented at last:
803 The local caching of CRLs fetched via HTTP or LDAP, activated
804 by the parameter cachecrls=yes in the config setup section
805 of ipsec.conf. The dynamically fetched CRLs are stored under
806 a unique file name containing the issuer's subjectKeyID
807 in /etc/ipsec.d/crls.
809 - Applied a one-line patch courtesy of Michael Richardson
810 from the Openswan project which fixes the kernel-oops
811 in KLIPS when an snmp daemon is running on the same box.
817 - Eliminated null length CRL distribution point strings.
819 - Fixed a trust path evaluation bug introduced with 2.4.3
825 - Improved the joint OCSP / CRL revocation policy.
826 OCSP responses have precedence over CRL entries.
828 - Introduced support of CRLv2 reason codes.
830 - Fixed a bug with key-pad equipped readers which caused
831 pluto to prompt for the pin via the console when the first
832 occasion to enter the pin via the key-pad was missed.
834 - When pluto is built with LDAP_V3 enabled, the library
835 liblber required by newer versions of openldap is now
842 - Added the _updown_espmark template which requires all
843 incoming ESP traffic to be marked with a default mark
846 - Introduced the pkcs11keepstate parameter in the config setup
847 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
848 session and login states are kept as long as possible during
849 the lifetime of pluto. This means that a PIN entry via a key
850 pad has to be done only once.
852 - Introduced the pkcs11module parameter in the config setup
853 section of ipsec.conf which specifies the PKCS#11 module
854 to be used with smart cards. Example:
856 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
858 - Added support of smartcard readers equipped with a PIN pad.
860 - Added patch by Jay Pfeifer which detects when netkey
861 modules have been statically built into the Linux 2.6 kernel.
863 - Added two patches by Herbert Xu. The first uses ip xfrm
864 instead of setkey to flush the IPsec policy database. The
865 second sets the optional flag in inbound IPComp SAs only.
867 - Applied Ulrich Weber's patch which fixes an interoperability
868 problem between native IPsec and KLIPS systems caused by
869 setting the replay window to 32 instead of 0 for ipcomp.
875 - Fixed a bug which caused an unwanted Mode Config request
876 to be initiated in the case where "right" was used to denote
877 the local side in ipsec.conf and "left" the remote side,
878 contrary to the recommendation that "right" be remote and
885 - updated Vendor ID to strongSwan-2.4.0
887 - updated copyright statement to include David Buechi and
894 - strongSwan now communicates with attached smartcards and
895 USB crypto tokens via the standardized PKCS #11 interface.
896 By default the OpenSC library from www.opensc.org is used
897 but any other PKCS#11 library could be dynamically linked.
898 strongSwan's PKCS#11 API was implemented by David Buechi
899 and Michael Meier, both graduates of the Zurich University
900 of Applied Sciences in Winterthur, Switzerland.
902 - When a %trap eroute is triggered by an outgoing IP packet
903 then the native IPsec stack of the Linux 2.6 kernel [often/
904 always?] returns an XFRM_ACQUIRE message with an undefined
905 protocol family field and the connection setup fails.
906 As a workaround IPv4 (AF_INET) is now assumed.
908 - the results of the UML test scenarios are now enhanced
909 with block diagrams of the virtual network topology used
910 in a particular test.
916 - fixed IV used to decrypt informational messages.
917 This bug was introduced with Mode Config functionality.
919 - fixed NCP Vendor ID.
921 - undid one of Ulrich Weber's maximum udp size patches
922 because it caused a segmentation fault with NAT-ed
925 - added UML scenarios wildcards and attr-cert which
926 demonstrate the implementation of IPsec policies based
927 on wildcard parameters contained in Distinguished Names and
928 on X.509 attribute certificates, respectively.
934 - Added basic Mode Config functionality
936 - Added Mathieu Lafon's patch which upgrades the status of
937 the NAT-Traversal implementation to RFC 3947.
939 - The _startklips script now also loads the xfrm4_tunnel
942 - Added Ulrich Weber's netlink replay window size and
943 maximum udp size patches.
945 - UML testing now uses the Linux 2.6.10 UML kernel by default.
951 - Eric Marchionni and Patrik Rayo, both recent graduates from
952 the Zuercher Hochschule Winterthur in Switzerland, created a
953 User-Mode-Linux test setup for strongSwan. For more details
954 please read the INSTALL and README documents in the testing
957 - Full support of group attributes based on X.509 attribute
958 certificates. Attribute certificates can be generated
959 using the openac facility. For more details see
963 The group attributes can be used in connection definitions
964 in order to give IPsec access to specific user groups.
965 This is done with the new parameter left|rightgroups as in
967 rightgroups="Research, Sales"
969 giving access to users possessing the group attributes
970 Research or Sales, only.
972 - In Quick Mode clients with subnet mask /32 are now
973 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
974 fix rekeying problems with the SafeNet/SoftRemote and NCP
975 Secure Entry Clients.
977 - Changed the defaults of the ikelifetime and keylife parameters
978 to 3h and 1h, respectively. The maximum allowable values are
979 now both set to 24 h.
981 - Suppressed notification wars between two IPsec peers that
982 could e.g. be triggered by incorrect ISAKMP encryption.
984 - Public RSA keys can now have identical IDs if either the
985 issuing CA or the serial number is different. The serial
986 number of a certificate is now shown by the command
988 ipsec auto --listpubkeys
994 - Added Tuomo Soini's sourceip feature which allows a strongSwan
995 roadwarrior to use a fixed Virtual IP (see README section 2.6)
996 and reduces the well-known four tunnel case on VPN gateways to
997 a single tunnel definition (see README section 2.4).
999 - Fixed a bug occuring with NAT-Traversal enabled when the responder
1000 suddenly turns initiator and the initiator cannot find a matching
1001 connection because of the floated IKE port 4500.
1003 - Removed misleading ipsec verify command from barf.
1005 - Running under the native IP stack, ipsec --version now shows
1006 the Linux kernel version (courtesy to the Openswan project).
1012 - Introduced the ipsec auto --listalgs monitoring command which lists
1013 all currently registered IKE and ESP algorithms.
1015 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
1016 is set and the first proposed transform does not match.
1018 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
1019 occuring when a smartcard is present.
1021 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
1023 - Fixed the printing of the notification names (null)
1025 - Applied another of Herbert Xu's Netlink patches.
1031 - Support of Dead Peer Detection. The connection parameter
1033 dpdaction=clear|hold
1035 activates DPD for the given connection.
1037 - The default Opportunistic Encryption (OE) policy groups are not
1038 automatically included anymore. Those wishing to activate OE can include
1039 the policy group with the following statement in ipsec.conf:
1041 include /etc/ipsec.d/examples/oe.conf
1043 The default for [right|left]rsasigkey is now set to %cert.
1045 - strongSwan now has a Vendor ID of its own which can be activated
1046 using the compile option VENDORID
1048 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
1050 - Applied Herbert Xu's patch fixing an ESPINUDP problem
1052 - Applied Herbert Xu's patch setting source/destination port numbers.
1054 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
1055 lost during the migration from SuperFreeS/WAN.
1057 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
1059 - Fixed the unsharing of alg parameters when instantiating group
1066 - Thomas Walpuski made me aware of a potential DoS attack via
1067 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
1068 certificates in Pluto's authority certificate store. This vulnerability
1069 was fixed by establishing trust in CA candidate certificates up to a
1070 trusted root CA prior to insertion into Pluto's chained list.
1072 - replaced the --assign option by the -v option in the auto awk script
1073 in order to make it run with mawk under debian/woody.
1079 - Split of the status information between ipsec auto --status (concise)
1080 and ipsec auto --statusall (verbose). Both commands can be used with
1081 an optional connection selector:
1083 ipsec auto --status[all] <connection_name>
1085 - Added the description of X.509 related features to the ipsec_auto(8)
1088 - Hardened the ASN.1 parser in debug mode, especially the printing
1089 of malformed distinguished names.
1091 - The size of an RSA public key received in a certificate is now restricted to
1093 512 bits <= modulus length <= 8192 bits.
1095 - Fixed the debug mode enumeration.
1101 - Fixed another PKCS#7 vulnerability which could lead to an
1102 endless loop while following the X.509 trust chain.
1108 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
1109 that accepted end certificates having identical issuer and subject
1110 distinguished names in a multi-tier X.509 trust chain.
1116 - Removed all remaining references to ipsec_netlink.h in KLIPS.
1122 - The new "ca" section allows to define the following parameters:
1125 cacert=koolCA.pem # cacert of kool CA
1126 ocspuri=http://ocsp.kool.net:8001 # ocsp server
1127 ldapserver=ldap.kool.net # default ldap server
1128 crluri=http://www.kool.net/kool.crl # crl distribution point
1129 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
1130 auto=add # add, ignore
1132 The ca definitions can be monitored via the command
1134 ipsec auto --listcainfos
1136 - Fixed cosmetic corruption of /proc filesystem by integrating
1137 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
1143 - Added support for the 818043 NAT-Traversal update of Microsoft's
1144 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
1146 - A symbolic link to libcrypto is now added in the kernel sources
1147 during kernel compilation
1149 - Fixed a couple of 64 bit issues (mostly casts to int).
1150 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
1152 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
1153 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
1154 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
1160 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
1161 certificate extension which contains no generalName item) can cause
1162 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
1163 been hardened to make it more robust against malformed ASN.1 objects.
1165 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
1166 Linux 2.6 IPsec stack.
1172 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12