4 - The mixed PSK/RSA roadwarrior detection capability introduced by the
5 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
6 payloads by the responder right before any defined IKE Main Mode state had
7 been established. Although any form of bad proposal syntax was being correctly
8 detected by the payload parser, the subsequent error handler didn't check
9 the state pointer before logging current state information, causing an
10 immediate crash of the pluto keying daemon due to a NULL pointer.
15 - Added algorithm selection to charon: New default algorithms for
16 ike=aes128-sha-modp2048, as both daemons support it. The default
17 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
18 the ike/esp parameter the same way as pluto. As this syntax does
19 not allow specification of a pseudo random function, the same
20 algorithm as for integrity is used (currently sha/md5). Supported
22 Encryption: aes128, aes192, aes256
23 Integrity/PRF: md5, sha (using hmac)
24 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
26 Encryption: aes128, aes192, aes256, 3des, blowfish128,
27 blowfish192, blowfish256
29 More IKE encryption algorithms will come after porting libcrypto into
32 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
33 perfect forward secrecy is used. The rekeying parameters rekey,
34 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
35 when using IKEv2. WARNING: charon currently is unable to handle
36 simultaneous rekeying. To avoid such a situation, use a large
37 rekeyfuzz, or even better, set rekey=no on one peer.
39 - support for host2host, net2net, host2net (roadwarrior) tunnels
40 using predefined RSA certificates (see uml scenarios for
41 configuration examples).
43 - new build environment featuring autotools. Features such
44 as HTTP, LDAP and smartcard support may be enabled using
45 the ./configure script. Changing install directories
46 is possible, too. See ./configure --help for more details.
48 - better integration of charon with ipsec starter, which allows
49 (almost) transparent operation with both daemons. charon
50 handles ipsec commands up, down, status, statusall, listall,
51 listcerts and allows proper load, reload and delete of connections
57 - initial support of the IKEv2 protocol. Connections in
58 ipsec.conf designated by keyexchange=ikev2 are negotiated
59 by the new IKEv2 charon keying daemon whereas those marked
60 by keyexchange=ikev1 or the default keyexchange=ike are
61 handled thy the IKEv1 pluto keying daemon. Currently only
62 a limited subset of functions are available with IKEv2
63 (Default AES encryption, authentication based on locally
64 imported X.509 certificates, unencrypted private RSA keys
65 in PKCS#1 file format, limited functionality of the ipsec
72 - the dynamic iptables rules from the _updown_x509 template
73 for KLIPS and the _updown_policy template for NETKEY have
74 been merged into the default _updown script. The existing
75 left|rightfirewall keyword causes the automatic insertion
76 and deletion of ACCEPT rules for tunneled traffic upon
77 the successful setup and teardown of an IPsec SA, respectively.
78 left|rightfirwall can be used with KLIPS under any Linux 2.4
79 kernel or with NETKEY under a Linux kernel version >= 2.6.16
80 in conjuction with iptables >= 1.3.5. For NETKEY under a Linux
81 kernel version < 2.6.16 which does not support IPsec policy
82 matching yet, please continue to use a copy of the _updown_espmark
83 template loaded via the left|rightupdown keyword.
85 - a new left|righthostaccess keyword has been introduced which
86 can be used in conjunction with left|rightfirewall and the
87 default _updown script. By default leftfirewall=yes inserts
88 a bi-directional iptables FORWARD rule for a local client network
89 with a netmask different from 255.255.255.255 (single host).
90 This does not allow to access the VPN gateway host via its
91 internal network interface which is part of the client subnet
92 because an iptables INPUT and OUTPUT rule would be required.
93 lefthostaccess=yes will cause this additional ACCEPT rules to
96 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
97 payload is preparsed in order to find out whether the roadwarrior
98 requests PSK or RSA so that a matching connection candidate can
105 - the new _updown_policy template allows ipsec policy based
106 iptables firewall rules. Required are iptables version
107 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
108 the _updown_espmark template, so that no INPUT mangle rules
109 are required any more.
111 - added support of DPD restart mode
113 - ipsec starter now allows the use of wildcards in include
114 statements as e.g. in "include /etc/my_ipsec/*.conf".
115 Patch courtesy of Matthias Haas.
117 - the Netscape OID 'employeeNumber' is now recognized and can be
118 used as a Relative Distinguished Name in certificates.
124 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
125 command and not of ipsec setup any more.
127 - ipsec starter now supports AH authentication in conjunction with
128 ESP encryption. AH authentication is configured in ipsec.conf
129 via the auth=ah parameter.
131 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
132 ipsec whack --scencrypt|scdecrypt <args>.
134 - get_sa_info() now determines for the native netkey IPsec stack
135 the exact time of the last use of an active eroute. This information
136 is used by the Dead Peer Detection algorithm and is also displayed by
137 the ipsec status command.
143 - running under the native Linux 2.6 IPsec stack, the function
144 get_sa_info() is called by ipsec auto --status to display the current
145 number of transmitted bytes per IPsec SA.
147 - get_sa_info() is also used by the Dead Peer Detection process to detect
148 recent ESP activity. If ESP traffic was received from the peer within
149 the last dpd_delay interval then no R_Y_THERE notification must be sent.
151 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
152 in ID_DER_ASN1_DN identities. The following notations are possible:
154 rightid="unstructuredName=John Doe"
155 rightid="UN=John Doe"
157 - fixed a long-standing bug which caused PSK-based roadwarrior connections
158 to segfault in the function id.c:same_id() called by keys.c:get_secret()
159 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
166 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
168 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
170 - in order to guarantee backwards-compatibility with the script-based
171 auto function (e.g. auto --replace), the ipsec starter scripts stores
172 the defaultroute information in the temporary file /var/run/ipsec.info.
174 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
175 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
178 - the ipsec starter now also recognizes the parameters authby=never and
179 type=passthrough|pass|drop|reject.
185 - ipsec starter now supports the also parameter which allows
186 a modular structure of the connection definitions. Thus
187 "ipsec start" is now ready to replace "ipsec setup".
193 - Mathieu Lafon's popular ipsec starter tool has been added to the
194 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
195 for his integration work. ipsec starter is a C program which is going
196 to replace the various shell and awk starter scripts (setup, _plutoload,
197 _plutostart, _realsetup, _startklips, _confread, and auto). Since
198 ipsec.conf is now parsed only once, the starting of multiple tunnels is
199 accelerated tremedously.
201 - Added support of %defaultroute to the ipsec starter. If the IP address
202 changes, a HUP signal to the ipsec starter will automatically
203 reload pluto's connections.
205 - moved most compile time configurations from pluto/Makefile to
206 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
207 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
209 - removed the ipsec verify and ipsec newhostkey commands
211 - fixed some 64-bit issues in formatted print statements
213 - The scepclient functionality implementing the Simple Certificate
214 Enrollment Protocol (SCEP) is nearly complete but hasn't been
221 - CA certicates are now automatically loaded from a smartcard
222 or USB crypto token and appear in the ipsec auto --listcacerts
229 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
230 library that does not support the C_Encrypt() Cryptoki
231 function (e.g. OpenSC), the RSA encryption is done in
232 software using the public key fetched from the smartcard.
234 - The scepclient function now allows to define the
235 validity of a self-signed certificate using the --days,
236 --startdate, and --enddate options. The default validity
237 has been changed from one year to five years.
243 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
244 interface to other applications for RSA encryption and decryption
245 via the whack interface. Notation:
247 ipsec whack --scencrypt <data>
248 [--inbase 16|hex|64|base64|256|text|ascii]
249 [--outbase 16|hex|64|base64|256|text|ascii]
252 ipsec whack --scdecrypt <data>
253 [--inbase 16|hex|64|base64|256|text|ascii]
254 [--outbase 16|hex|64|base64|256|text|ascii]
257 The default setting for inbase and outbase is hex.
259 The new proxy interface can be used for securing symmetric
260 encryption keys required by the cryptoloop or dm-crypt
261 disk encryption schemes, especially in the case when
262 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
265 - if the file /etc/ipsec.secrets is lacking during the startup of
266 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
267 containing a 2048 bit RSA private key and a matching self-signed
268 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
269 is automatically generated by calling the function
271 ipsec scepclient --out pkcs1 --out cert-self
273 scepclient was written by Jan Hutter and Martin Willi, students
274 at the University of Applied Sciences in Rapperswil, Switzerland.
280 - the current extension of the PKCS#7 framework introduced
281 a parsing error in PKCS#7 wrapped X.509 certificates that are
282 e.g. transmitted by Windows XP when multi-level CAs are used.
283 the parsing syntax has been fixed.
285 - added a patch by Gerald Richter which tolerates multiple occurrences
286 of the ipsec0 interface when using KLIPS.
292 - with gawk-3.1.4 the word "default2 has become a protected
293 keyword for use in switch statements and cannot be used any
294 more in the strongSwan scripts. This problem has been
295 solved by renaming "default" to "defaults" and "setdefault"
296 in the scripts _confread and auto, respectively.
298 - introduced the parameter leftsendcert with the values
300 always|yes (the default, always send a cert)
301 ifasked (send the cert only upon a cert request)
302 never|no (never send a cert, used for raw RSA keys and
305 - fixed the initialization of the ESP key length to a default of
306 128 bits in the case that the peer does not send a key length
307 attribute for AES encryption.
309 - applied Herbert Xu's uniqueIDs patch
311 - applied Herbert Xu's CLOEXEC patches
317 - CRLs can now be cached also in the case when the issuer's
318 certificate does not contain a subjectKeyIdentifier field.
319 In that case the subjectKeyIdentifier is computed by pluto as the
320 160 bit SHA-1 hash of the issuer's public key in compliance
321 with section 4.2.1.2 of RFC 3280.
323 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
324 not only multiple Quick Modes of a given connection but also
325 multiple connections between two security gateways.
331 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
332 installed either by setting auto=route in ipsec.conf or by
333 a connection put into hold, generates an XFRM_AQUIRE event
334 for each packet that wants to use the not-yet exisiting
335 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
336 the Quick Mode queue, causing multiple IPsec SA to be
337 established in rapid succession. Starting with strongswan-2.5.1
338 only a single IPsec SA is established per host-pair connection.
340 - Right after loading the PKCS#11 module, all smartcard slots are
341 searched for certificates. The result can be viewed using
344 ipsec auto --listcards
346 The certificate objects found in the slots are numbered
347 starting with #1, #2, etc. This position number can be used to address
348 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
349 in ipsec.conf and ipsec.secrets, respectively:
351 %smartcard (selects object #1)
352 %smartcard#1 (selects object #1)
353 %smartcard#3 (selects object #3)
355 As an alternative the existing retrieval scheme can be used:
357 %smartcard:45 (selects object with id=45)
358 %smartcard0 (selects first object in slot 0)
359 %smartcard4:45 (selects object in slot 4 with id=45)
361 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
362 private key flags either C_Sign() or C_Decrypt() is used
363 to generate a signature.
365 - The output buffer length parameter siglen in C_Sign()
366 is now initialized to the actual size of the output
367 buffer prior to the function call. This fixes the
368 CKR_BUFFER_TOO_SMALL error that could occur when using
369 the OpenSC PKCS#11 module.
371 - Changed the initialization of the PKCS#11 CK_MECHANISM in
372 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
374 - Refactored the RSA public/private key code and transferred it
375 from keys.c to the new pkcs1.c file as a preparatory step
376 towards the release of the SCEP client.
382 - The loading of a PKCS#11 smartcard library module during
383 runtime does not require OpenSC library functions any more
384 because the corresponding code has been integrated into
385 smartcard.c. Also the RSAREF pkcs11 header files have been
386 included in a newly created pluto/rsaref directory so that
387 no external include path has to be defined any longer.
389 - A long-awaited feature has been implemented at last:
390 The local caching of CRLs fetched via HTTP or LDAP, activated
391 by the parameter cachecrls=yes in the config setup section
392 of ipsec.conf. The dynamically fetched CRLs are stored under
393 a unique file name containing the issuer's subjectKeyID
394 in /etc/ipsec.d/crls.
396 - Applied a one-line patch courtesy of Michael Richardson
397 from the Openswan project which fixes the kernel-oops
398 in KLIPS when an snmp daemon is running on the same box.
404 - Eliminated null length CRL distribution point strings.
406 - Fixed a trust path evaluation bug introduced with 2.4.3
412 - Improved the joint OCSP / CRL revocation policy.
413 OCSP responses have precedence over CRL entries.
415 - Introduced support of CRLv2 reason codes.
417 - Fixed a bug with key-pad equipped readers which caused
418 pluto to prompt for the pin via the console when the first
419 occasion to enter the pin via the key-pad was missed.
421 - When pluto is built with LDAP_V3 enabled, the library
422 liblber required by newer versions of openldap is now
429 - Added the _updown_espmark template which requires all
430 incoming ESP traffic to be marked with a default mark
433 - Introduced the pkcs11keepstate parameter in the config setup
434 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
435 session and login states are kept as long as possible during
436 the lifetime of pluto. This means that a PIN entry via a key
437 pad has to be done only once.
439 - Introduced the pkcs11module parameter in the config setup
440 section of ipsec.conf which specifies the PKCS#11 module
441 to be used with smart cards. Example:
443 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
445 - Added support of smartcard readers equipped with a PIN pad.
447 - Added patch by Jay Pfeifer which detects when netkey
448 modules have been statically built into the Linux 2.6 kernel.
450 - Added two patches by Herbert Xu. The first uses ip xfrm
451 instead of setkey to flush the IPsec policy database. The
452 second sets the optional flag in inbound IPComp SAs only.
454 - Applied Ulrich Weber's patch which fixes an interoperability
455 problem between native IPsec and KLIPS systems caused by
456 setting the replay window to 32 instead of 0 for ipcomp.
462 - Fixed a bug which caused an unwanted Mode Config request
463 to be initiated in the case where "right" was used to denote
464 the local side in ipsec.conf and "left" the remote side,
465 contrary to the recommendation that "right" be remote and
472 - updated Vendor ID to strongSwan-2.4.0
474 - updated copyright statement to include David Buechi and
481 - strongSwan now communicates with attached smartcards and
482 USB crypto tokens via the standardized PKCS #11 interface.
483 By default the OpenSC library from www.opensc.org is used
484 but any other PKCS#11 library could be dynamically linked.
485 strongSwan's PKCS#11 API was implemented by David Buechi
486 and Michael Meier, both graduates of the Zurich University
487 of Applied Sciences in Winterthur, Switzerland.
489 - When a %trap eroute is triggered by an outgoing IP packet
490 then the native IPsec stack of the Linux 2.6 kernel [often/
491 always?] returns an XFRM_ACQUIRE message with an undefined
492 protocol family field and the connection setup fails.
493 As a workaround IPv4 (AF_INET) is now assumed.
495 - the results of the UML test scenarios are now enhanced
496 with block diagrams of the virtual network topology used
497 in a particular test.
503 - fixed IV used to decrypt informational messages.
504 This bug was introduced with Mode Config functionality.
506 - fixed NCP Vendor ID.
508 - undid one of Ulrich Weber's maximum udp size patches
509 because it caused a segmentation fault with NAT-ed
512 - added UML scenarios wildcards and attr-cert which
513 demonstrate the implementation of IPsec policies based
514 on wildcard parameters contained in Distinguished Names and
515 on X.509 attribute certificates, respectively.
521 - Added basic Mode Config functionality
523 - Added Mathieu Lafon's patch which upgrades the status of
524 the NAT-Traversal implementation to RFC 3947.
526 - The _startklips script now also loads the xfrm4_tunnel
529 - Added Ulrich Weber's netlink replay window size and
530 maximum udp size patches.
532 - UML testing now uses the Linux 2.6.10 UML kernel by default.
538 - Eric Marchionni and Patrik Rayo, both recent graduates from
539 the Zuercher Hochschule Winterthur in Switzerland, created a
540 User-Mode-Linux test setup for strongSwan. For more details
541 please read the INSTALL and README documents in the testing
544 - Full support of group attributes based on X.509 attribute
545 certificates. Attribute certificates can be generated
546 using the openac facility. For more details see
550 The group attributes can be used in connection definitions
551 in order to give IPsec access to specific user groups.
552 This is done with the new parameter left|rightgroups as in
554 rightgroups="Research, Sales"
556 giving access to users possessing the group attributes
557 Research or Sales, only.
559 - In Quick Mode clients with subnet mask /32 are now
560 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
561 fix rekeying problems with the SafeNet/SoftRemote and NCP
562 Secure Entry Clients.
564 - Changed the defaults of the ikelifetime and keylife parameters
565 to 3h and 1h, respectively. The maximum allowable values are
566 now both set to 24 h.
568 - Suppressed notification wars between two IPsec peers that
569 could e.g. be triggered by incorrect ISAKMP encryption.
571 - Public RSA keys can now have identical IDs if either the
572 issuing CA or the serial number is different. The serial
573 number of a certificate is now shown by the command
575 ipsec auto --listpubkeys
581 - Added Tuomo Soini's sourceip feature which allows a strongSwan
582 roadwarrior to use a fixed Virtual IP (see README section 2.6)
583 and reduces the well-known four tunnel case on VPN gateways to
584 a single tunnel definition (see README section 2.4).
586 - Fixed a bug occuring with NAT-Traversal enabled when the responder
587 suddenly turns initiator and the initiator cannot find a matching
588 connection because of the floated IKE port 4500.
590 - Removed misleading ipsec verify command from barf.
592 - Running under the native IP stack, ipsec --version now shows
593 the Linux kernel version (courtesy to the Openswan project).
599 - Introduced the ipsec auto --listalgs monitoring command which lists
600 all currently registered IKE and ESP algorithms.
602 - Fixed a bug in the ESP algorithm selection occuring when the strict flag
603 is set and the first proposed transform does not match.
605 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
606 occuring when a smartcard is present.
608 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
610 - Fixed the printing of the notification names (null)
612 - Applied another of Herbert Xu's Netlink patches.
618 - Support of Dead Peer Detection. The connection parameter
622 activates DPD for the given connection.
624 - The default Opportunistic Encryption (OE) policy groups are not
625 automatically included anymore. Those wishing to activate OE can include
626 the policy group with the following statement in ipsec.conf:
628 include /etc/ipsec.d/examples/oe.conf
630 The default for [right|left]rsasigkey is now set to %cert.
632 - strongSwan now has a Vendor ID of its own which can be activated
633 using the compile option VENDORID
635 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
637 - Applied Herbert Xu's patch fixing an ESPINUDP problem
639 - Applied Herbert Xu's patch setting source/destination port numbers.
641 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
642 lost during the migration from SuperFreeS/WAN.
644 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
646 - Fixed the unsharing of alg parameters when instantiating group
653 - Thomas Walpuski made me aware of a potential DoS attack via
654 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
655 certificates in Pluto's authority certificate store. This vulnerability
656 was fixed by establishing trust in CA candidate certificates up to a
657 trusted root CA prior to insertion into Pluto's chained list.
659 - replaced the --assign option by the -v option in the auto awk script
660 in order to make it run with mawk under debian/woody.
666 - Split of the status information between ipsec auto --status (concise)
667 and ipsec auto --statusall (verbose). Both commands can be used with
668 an optional connection selector:
670 ipsec auto --status[all] <connection_name>
672 - Added the description of X.509 related features to the ipsec_auto(8)
675 - Hardened the ASN.1 parser in debug mode, especially the printing
676 of malformed distinguished names.
678 - The size of an RSA public key received in a certificate is now restricted to
680 512 bits <= modulus length <= 8192 bits.
682 - Fixed the debug mode enumeration.
688 - Fixed another PKCS#7 vulnerability which could lead to an
689 endless loop while following the X.509 trust chain.
695 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
696 that accepted end certificates having identical issuer and subject
697 distinguished names in a multi-tier X.509 trust chain.
703 - Removed all remaining references to ipsec_netlink.h in KLIPS.
709 - The new "ca" section allows to define the following parameters:
712 cacert=koolCA.pem # cacert of kool CA
713 ocspuri=http://ocsp.kool.net:8001 # ocsp server
714 ldapserver=ldap.kool.net # default ldap server
715 crluri=http://www.kool.net/kool.crl # crl distribution point
716 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
717 auto=add # add, ignore
719 The ca definitions can be monitored via the command
721 ipsec auto --listcainfos
723 - Fixed cosmetic corruption of /proc filesystem by integrating
724 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
730 - Added support for the 818043 NAT-Traversal update of Microsoft's
731 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
733 - A symbolic link to libcrypto is now added in the kernel sources
734 during kernel compilation
736 - Fixed a couple of 64 bit issues (mostly casts to int).
737 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
739 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
740 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
741 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
747 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
748 certificate extension which contains no generalName item) can cause
749 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
750 been hardened to make it more robust against malformed ASN.1 objects.
752 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
753 Linux 2.6 IPsec stack.
759 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12
projects / thirdparty / strongswan.git / blob