4 - Our private libraries (e.g. libstrongswan) are not installed directly in
5 prefix/lib anymore. Instead a subdirectory is used (prefix/lib/ipsec/ by
6 default). The plugins directory is also moved from libexec/ipsec/ to that
9 - The dynamic IMC/IMV libraries were moved from the plugins directory to
10 a new imcvs directory in the prefix/lib/ipsec/ subdirectory.
12 - Job priorities were introduced to prevent thread starvation caused by too
13 many threads handling blocking operations (such as CRL fetching). Refer to
14 strongswan.conf(5) for details.
16 - Two new strongswan.conf options allow to fine-tune performance on IKEv2
17 gateways by dropping IKE_SA_INIT requests on high load.
19 - IKEv2 charon daemon supports start PASS and DROP shunt policies
20 preventing traffic to go through IPsec connections. Installation of the
21 shunt policies either via the XFRM netfilter or PFKEYv2 IPsec kernel
24 - The history of policies installed in the kernel is now tracked so that e.g.
25 trap policies are correctly updated when reauthenticated SAs are terminated.
27 - IMC/IMV Scanner pair implementing the RFC 5792 PA-TNC (IF-M) protocol.
28 Using "netstat -l" the IMC scans open listening ports on the TNC client
29 and sends a port list to the IMV which based on a port policy decides if
30 the client is admitted to the network.
31 (--enable-imc-scanner/--enable-imv-scanner).
33 - IMC/IMV Test pair implementing the RFC 5792 PA-TNC (IF-M) protocol.
34 (--enable-imc-test/--enable-imv-test).
36 - The IKEv2 close action does not use the same value as the ipsec.conf dpdaction
37 setting, but the value defined by its own closeaction keyword. The action
38 is triggered if the remote peer closes a CHILD_SA unexpectedly.
43 - The whitelist plugin for the IKEv2 daemon maintains an in-memory identity
44 whitelist. Any connection attempt of peers not whitelisted will get rejected.
45 The 'ipsec whitelist' utility provides a simple command line frontend for
46 whitelist administration.
48 - The duplicheck plugin provides a specialized form of duplicate checking,
49 doing a liveness check on the old SA and optionally notify a third party
50 application about detected duplicates.
52 - The coupling plugin permanently couples two or more devices by limiting
53 authentication to previously used certificates.
55 - In the case that the peer config and child config don't have the same name
56 (usually in SQL database defined connections), ipsec up|route <peer config>
57 starts|routes all associated child configs and ipsec up|route <child config>
58 only starts|routes the specific child config.
60 - fixed the encoding and parsing of X.509 certificate policy statements (CPS).
62 - Duncan Salerno contributed the eap-sim-pcsc plugin implementing a
63 pcsc-lite based SIM card backend.
65 - The eap-peap plugin implements the EAP PEAP protocol. Interoperates
66 successfully with a FreeRADIUS server and Windows 7 Agile VPN clients.
68 - The IKEv2 daemon charon rereads strongswan.conf on SIGHUP and instructs
69 all plugins to reload. Currently only the eap-radius and the attr plugins
70 support configuration reloading.
72 - Added userland support to the IKEv2 daemon for Extended Sequence Numbers
73 support coming with Linux 2.6.39. To enable ESN on a connection, add
74 the 'esn' keyword to the proposal. The default proposal uses 32-bit sequence
75 numbers only ('noesn'), and the same value is used if no ESN mode is
76 specified. To negotiate ESN support with the peer, include both, e.g.
77 esp=aes128-sha1-esn-noesn.
79 - In addition to ESN, Linux 2.6.39 gained support for replay windows larger
80 than 32 packets. The new global strongswan.conf option 'charon.replay_window'
81 configures the size of the replay window, in packets.
87 - Sansar Choinyambuu implemented the RFC 5793 Posture Broker Protocol (BP)
88 compatible with Trusted Network Connect (TNC). The TNCCS 2.0 protocol
89 requires the tnccs_20, tnc_imc and tnc_imv plugins but does not depend
90 on the libtnc library. Any available IMV/IMC pairs conforming to the
91 Trusted Computing Group's TNC-IF-IMV/IMC 1.2 interface specification
92 can be loaded via /etc/tnc_config.
94 - Re-implemented the TNCCS 1.1 protocol by using the tnc_imc and tnc_imv
95 in place of the external libtnc library.
97 - The tnccs_dynamic plugin loaded on a TNC server in addition to the
98 tnccs_11 and tnccs_20 plugins, dynamically detects the IF-TNCCS
99 protocol version used by a TNC client and invokes an instance of
100 the corresponding protocol stack.
102 - IKE and ESP proposals can now be stored in an SQL database using a
103 new proposals table. The start_action field in the child_configs
104 tables allows the automatic starting or routing of connections stored
107 - The new certificate_authorities and certificate_distribution_points
108 tables make it possible to store CRL and OCSP Certificate Distribution
109 points in an SQL database.
111 - The new 'include' statement allows to recursively include other files in
112 strongswan.conf. Existing sections and values are thereby extended and
113 replaced, respectively.
115 - Due to the changes in the parser for strongswan.conf, the configuration
116 syntax for the attr plugin has changed. Previously, it was possible to
117 specify multiple values of a specific attribute type by adding multiple
118 key/value pairs with the same key (e.g. dns) to the plugins.attr section.
119 Because values with the same key now replace previously defined values
120 this is not possible anymore. As an alternative, multiple values can be
121 specified by separating them with a comma (e.g. dns = 1.2.3.4, 2.3.4.5).
123 - ipsec listalgs now appends (set in square brackets) to each crypto
124 algorithm listed the plugin that registered the function.
126 - Traffic Flow Confidentiality padding supported with Linux 2.6.38 can be used
127 by the IKEv2 daemon. The ipsec.conf 'tfc' keyword pads all packets to a given
128 boundary, the special value '%mtu' pads all packets to the path MTU.
130 - The new af-alg plugin can use various crypto primitives of the Linux Crypto
131 API using the AF_ALG interface introduced with 2.6.38. This removes the need
132 for additional userland implementations of symmetric cipher, hash, hmac and
135 - The IKEv2 daemon supports the INITIAL_CONTACT notify as initiator and
136 responder. The notify is sent when initiating configurations with a unique
137 policy, set in ipsec.conf via the global 'uniqueids' option.
139 - The conftest conformance testing framework enables the IKEv2 stack to perform
140 many tests using a distinct tool and configuration frontend. Various hooks
141 can alter reserved bits, flags, add custom notifies and proposals, reorder
142 or drop messages and much more. It is enabled using the --enable-conftest
145 - The new libstrongswan constraints plugin provides advanced X.509 constraint
146 checking. In additon to X.509 pathLen constraints, the plugin checks for
147 nameConstraints and certificatePolicies, including policyMappings and
148 policyConstraints. The x509 certificate plugin and the pki tool have been
149 enhanced to support these extensions. The new left/rightcertpolicy ipsec.conf
150 connection keywords take OIDs a peer certificate must have.
152 - The left/rightauth ipsec.conf keywords accept values with a minimum strength
153 for trustchain public keys in bits, such as rsa-2048 or ecdsa-256.
155 - The revocation and x509 libstrongswan plugins and the pki tool gained basic
156 support for delta CRLs.
162 - IMPORTANT: the default keyexchange mode 'ike' is changing with release 4.5
163 from 'ikev1' to 'ikev2', thus commemorating the five year anniversary of the
164 IKEv2 RFC 4306 and its mature successor RFC 5996. The time has definitively
165 come for IKEv1 to go into retirement and to cede its place to the much more
166 robust, powerful and versatile IKEv2 protocol!
168 - Added new ctr, ccm and gcm plugins providing Counter, Counter with CBC-MAC
169 and Galois/Counter Modes based on existing CBC implementations. These
170 new plugins bring support for AES and Camellia Counter and CCM algorithms
171 and the AES GCM algorithms for use in IKEv2.
173 - The new pkcs11 plugin brings full Smartcard support to the IKEv2 daemon and
174 the pki utility using one or more PKCS#11 libraries. It currently supports
175 RSA private and public key operations and loads X.509 certificates from
178 - Implemented a general purpose TLS stack based on crypto and credential
179 primitives of libstrongswan. libtls supports TLS versions 1.0, 1.1 and 1.2,
180 ECDHE-ECDSA/RSA, DHE-RSA and RSA key exchange algorithms and RSA/ECDSA based
181 client authentication.
183 - Based on libtls, the eap-tls plugin brings certificate based EAP
184 authentication for client and server. It is compatible to Windows 7 IKEv2
185 Smartcard authentication and the OpenSSL based FreeRADIUS EAP-TLS backend.
187 - Implemented the TNCCS 1.1 Trusted Network Connect protocol using the
188 libtnc library on the strongSwan client and server side via the tnccs_11
189 plugin and optionally connecting to a TNC@FHH-enhanced FreeRADIUS AAA server.
190 Depending on the resulting TNC Recommendation, strongSwan clients are granted
191 access to a network behind a strongSwan gateway (allow), are put into a
192 remediation zone (isolate) or are blocked (none), respectively. Any number
193 of Integrity Measurement Collector/Verifier pairs can be attached
194 via the tnc-imc and tnc-imv charon plugins.
196 - The IKEv1 daemon pluto now uses the same kernel interfaces as the IKEv2
197 daemon charon. As a result of this, pluto now supports xfrm marks which
198 were introduced in charon with 4.4.1.
200 - Applets for Maemo 5 (Nokia) allow to easily configure and control IKEv2
201 based VPN connections with EAP authentication on supported devices.
203 - The RADIUS plugin eap-radius now supports multiple RADIUS servers for
204 redundant setups. Servers are selected by a defined priority, server load and
207 - The simple led plugin controls hardware LEDs through the Linux LED subsystem.
208 It currently shows activity of the IKE daemon and is a good example how to
209 implement a simple event listener.
211 - Improved MOBIKE behavior in several corner cases, for instance, if the
212 initial responder moves to a different address.
214 - Fixed left-/rightnexthop option, which was broken since 4.4.0.
216 - Fixed a bug not releasing a virtual IP address to a pool if the XAUTH
217 identity was different from the IKE identity.
219 - Fixed the alignment of ModeConfig messages on 4-byte boundaries in the
220 case where the attributes are not a multiple of 4 bytes (e.g. Cisco's
223 - Fixed the interoperability of the socket_raw and socket_default
226 - Added man page for strongswan.conf
232 - Support of xfrm marks in IPsec SAs and IPsec policies introduced
233 with the Linux 2.6.34 kernel. For details see the example scenarios
234 ikev2/nat-two-rw-mark, ikev2/rw-nat-mark-in-out and ikev2/net2net-psk-dscp.
236 - The PLUTO_MARK_IN and PLUTO_ESP_ENC environment variables can be used
237 in a user-specific updown script to set marks on inbound ESP or
240 - The openssl plugin now supports X.509 certificate and CRL functions.
242 - OCSP/CRL checking in IKEv2 has been moved to the revocation plugin, enabled
243 by default. Plase update manual load directives in strongswan.conf.
245 - RFC3779 ipAddrBlock constraint checking has been moved to the addrblock
246 plugin, disabled by default. Enable it and update manual load directives
247 in strongswan.conf, if required.
249 - The pki utility supports CRL generation using the --signcrl command.
251 - The ipsec pki --self, --issue and --req commands now support output in
252 PEM format using the --outform pem option.
254 - The major refactoring of the IKEv1 Mode Config functionality now allows
255 the transport and handling of any Mode Config attribute.
257 - The RADIUS proxy plugin eap-radius now supports multiple servers. Configured
258 servers are chosen randomly, with the option to prefer a specific server.
259 Non-responding servers are degraded by the selection process.
261 - The ipsec pool tool manages arbitrary configuration attributes stored
262 in an SQL database. ipsec pool --help gives the details.
264 - The new eap-simaka-sql plugin acts as a backend for EAP-SIM and EAP-AKA,
265 reading triplets/quintuplets from an SQL database.
267 - The High Availability plugin now supports a HA enabled in-memory address
268 pool and Node reintegration without IKE_SA rekeying. The latter allows
269 clients without IKE_SA rekeying support to keep connected during
270 reintegration. Additionally, many other issues have been fixed in the ha
273 - Fixed a potential remote code execution vulnerability resulting from
274 the misuse of snprintf(). The vulnerability is exploitable by
275 unauthenticated users.
281 - The IKEv2 High Availability plugin has been integrated. It provides
282 load sharing and failover capabilities in a cluster of currently two nodes,
283 based on an extend ClusterIP kernel module. More information is available at
284 http://wiki.strongswan.org/projects/strongswan/wiki/HighAvailability.
285 The development of the High Availability functionality was sponsored by
286 secunet Security Networks AG.
288 - Added IKEv1 and IKEv2 configuration support for the AES-GMAC
289 authentication-only ESP cipher. Our aes_gmac kernel patch or a Linux
290 2.6.34 kernel is required to make AES-GMAC available via the XFRM
293 - Added support for Diffie-Hellman groups 22, 23 and 24 to the gmp, gcrypt
294 and openssl plugins, usable by both pluto and charon. The new proposal
295 keywords are modp1024s160, modp2048s224 and modp2048s256. Thanks to Joy Latten
296 from IBM for his contribution.
298 - The IKEv1 pluto daemon supports RAM-based virtual IP pools using
299 the rightsourceip directive with a subnet from which addresses
302 - The ipsec pki --gen and --pub commands now allow the output of
303 private and public keys in PEM format using the --outform pem
306 - The new DHCP plugin queries virtual IP addresses for clients from a DHCP
307 server using broadcasts, or a defined server using the
308 charon.plugins.dhcp.server strongswan.conf option. DNS/WINS server information
309 is additionally served to clients if the DHCP server provides such
310 information. The plugin is used in ipsec.conf configurations having
311 rightsourceip set to %dhcp.
313 - A new plugin called farp fakes ARP responses for virtual IP addresses
314 handed out to clients from the IKEv2 daemon charon. The plugin lets a
315 road-warrior act as a client on the local LAN if it uses a virtual IP
316 from the responders subnet, e.g. acquired using the DHCP plugin.
318 - The existing IKEv2 socket implementations have been migrated to the
319 socket-default and the socket-raw plugins. The new socket-dynamic plugin
320 binds sockets dynamically to ports configured via the left-/rightikeport
321 ipsec.conf connection parameters.
323 - The android charon plugin stores received DNS server information as "net.dns"
324 system properties, as used by the Android platform.
330 - The IKEv2 daemon supports RFC 3779 IP address block constraints
331 carried as a critical X.509v3 extension in the peer certificate.
333 - The ipsec pool --add|del dns|nbns command manages DNS and NBNS name
334 server entries that are sent via the IKEv1 Mode Config or IKEv2
335 Configuration Payload to remote clients.
337 - The Camellia cipher can be used as an IKEv1 encryption algorithm.
339 - The IKEv1 and IKEV2 daemons now check certificate path length constraints.
341 - The new ipsec.conf conn option "inactivity" closes a CHILD_SA if no traffic
342 was sent or received within the given interval. To close the complete IKE_SA
343 if its only CHILD_SA was inactive, set the global strongswan.conf option
344 "charon.inactivity_close_ike" to yes.
346 - More detailed IKEv2 EAP payload information in debug output
348 - IKEv2 EAP-SIM and EAP-AKA share joint libsimaka library
350 - Added required userland changes for proper SHA256 and SHA384/512 in ESP that
351 will be introduced with Linux 2.6.33. The "sha256"/"sha2_256" keyword now
352 configures the kernel with 128 bit truncation, not the non-standard 96
353 bit truncation used by previous releases. To use the old 96 bit truncation
354 scheme, the new "sha256_96" proposal keyword has been introduced.
356 - Fixed IPComp in tunnel mode, stripping out the duplicated outer header. This
357 change makes IPcomp tunnel mode connections incompatible with previous
358 releases; disable compression on such tunnels.
360 - Fixed BEET mode connections on recent kernels by installing SAs with
361 appropriate traffic selectors, based on a patch by Michael Rossberg.
363 - Using extensions (such as BEET mode) and crypto algorithms (such as twofish,
364 serpent, sha256_96) allocated in the private use space now require that we
365 know its meaning, i.e. we are talking to strongSwan. Use the new
366 "charon.send_vendor_id" option in strongswan.conf to let the remote peer know
369 - Experimental support for draft-eronen-ipsec-ikev2-eap-auth, where the
370 responder omits public key authentication in favor of a mutual authentication
371 method. To enable EAP-only authentication, set rightauth=eap on the responder
372 to rely only on the MSK constructed AUTH payload. This not-yet standardized
373 extension requires the strongSwan vendor ID introduced above.
375 - The IKEv1 daemon ignores the Juniper SRX notification type 40001, thus
376 allowing interoperability.
382 - The IKEv1 pluto daemon can now use SQL-based address pools to deal out
383 virtual IP addresses as a Mode Config server. The pool capability has been
384 migrated from charon's sql plugin to a new attr-sql plugin which is loaded
385 by libstrongswan and which can be used by both daemons either with a SQLite
386 or MySQL database and the corresponding plugin.
388 - Plugin names have been streamlined: EAP plugins now have a dash after eap
389 (e.g. eap-sim), as it is used with the --enable-eap-sim ./configure option.
390 Plugin configuration sections in strongswan.conf now use the same name as the
391 plugin itself (i.e. with a dash). Make sure to update "load" directives and
392 the affected plugin sections in existing strongswan.conf files.
394 - The private/public key parsing and encoding has been split up into
395 separate pkcs1, pgp, pem and dnskey plugins. The public key implementation
396 plugins gmp, gcrypt and openssl can all make use of them.
398 - The EAP-AKA plugin can use different backends for USIM/quintuplet
399 calculations, very similar to the EAP-SIM plugin. The existing 3GPP2 software
400 implementation has been migrated to a separate plugin.
402 - The IKEv2 daemon charon gained basic PGP support. It can use locally installed
403 peer certificates and can issue signatures based on RSA private keys.
405 - The new 'ipsec pki' tool provides a set of commands to maintain a public
406 key infrastructure. It currently supports operations to create RSA and ECDSA
407 private/public keys, calculate fingerprints and issue or verify certificates.
409 - Charon uses a monotonic time source for statistics and job queueing, behaving
410 correctly if the system time changes (e.g. when using NTP).
412 - In addition to time based rekeying, charon supports IPsec SA lifetimes based
413 on processed volume or number of packets. They new ipsec.conf paramaters
414 'lifetime' (an alias to 'keylife'), 'lifebytes' and 'lifepackets' handle
415 SA timeouts, while the parameters 'margintime' (an alias to rekeymargin),
416 'marginbytes' and 'marginpackets' trigger the rekeying before a SA expires.
417 The existing parameter 'rekeyfuzz' affects all margins.
419 - If no CA/Gateway certificate is specified in the NetworkManager plugin,
420 charon uses a set of trusted root certificates preinstalled by distributions.
421 The directory containing CA certificates can be specified using the
422 --with-nm-ca-dir=path configure option.
424 - Fixed the encoding of the Email relative distinguished name in left|rightid
427 - Fixed the broken parsing of PKCS#7 wrapped certificates by the pluto daemon.
429 - Fixed smartcard-based authentication in the pluto daemon which was broken by
430 the ECDSA support introduced with the 4.3.2 release.
432 - A patch contributed by Heiko Hund fixes mixed IPv6 in IPv4 and vice versa
433 tunnels established with the IKEv1 pluto daemon.
435 - The pluto daemon now uses the libstrongswan x509 plugin for certificates and
436 CRls and the struct id type was replaced by identification_t used by charon
437 and the libstrongswan library.
443 - IKEv2 charon daemon ported to FreeBSD and Mac OS X. Installation details can
444 be found on wiki.strongswan.org.
446 - ipsec statusall shows the number of bytes transmitted and received over
447 ESP connections configured by the IKEv2 charon daemon.
449 - The IKEv2 charon daemon supports include files in ipsec.secrets.
455 - The configuration option --enable-integrity-test plus the strongswan.conf
456 option libstrongswan.integrity_test = yes activate integrity tests
457 of the IKE daemons charon and pluto, libstrongswan and all loaded
458 plugins. Thus dynamic library misconfigurations and non-malicious file
459 manipulations can be reliably detected.
461 - The new default setting libstrongswan.ecp_x_coordinate_only=yes allows
462 IKEv1 interoperability with MS Windows using the ECP DH groups 19 and 20.
464 - The IKEv1 pluto daemon now supports the AES-CCM and AES-GCM ESP
465 authenticated encryption algorithms.
467 - The IKEv1 pluto daemon now supports V4 OpenPGP keys.
469 - The RDN parser vulnerability discovered by Orange Labs research team
470 was not completely fixed in version 4.3.2. Some more modifications
471 had to be applied to the asn1_length() function to make it robust.
477 - The new gcrypt plugin provides symmetric cipher, hasher, RNG, Diffie-Hellman
478 and RSA crypto primitives using the LGPL licensed GNU gcrypt library.
480 - libstrongswan features an integrated crypto selftest framework for registered
481 algorithms. The test-vector plugin provides a first set of test vectors and
482 allows pluto and charon to rely on tested crypto algorithms.
484 - pluto can now use all libstrongswan plugins with the exception of x509 and xcbc.
485 Thanks to the openssl plugin, the ECP Diffie-Hellman groups 19, 20, 21, 25, and
486 26 as well as ECDSA-256, ECDSA-384, and ECDSA-521 authentication can be used
489 - Applying their fuzzing tool, the Orange Labs vulnerability research team found
490 another two DoS vulnerabilities, one in the rather old ASN.1 parser of Relative
491 Distinguished Names (RDNs) and a second one in the conversion of ASN.1 UTCTIME
492 and GENERALIZEDTIME strings to a time_t value.
498 - The nm plugin now passes DNS/NBNS server information to NetworkManager,
499 allowing a gateway administrator to set DNS/NBNS configuration on clients
502 - The nm plugin also accepts CA certificates for gateway authentication. If
503 a CA certificate is configured, strongSwan uses the entered gateway address
504 as its idenitity, requiring the gateways certificate to contain the same as
505 subjectAltName. This allows a gateway administrator to deploy the same
506 certificates to Windows 7 and NetworkManager clients.
508 - The command ipsec purgeike deletes IKEv2 SAs that don't have a CHILD SA.
509 The command ipsec down <conn>{n} deletes CHILD SA instance n of connection
510 <conn> whereas ipsec down <conn>{*} deletes all CHILD SA instances.
511 The command ipsec down <conn>[n] deletes IKE SA instance n of connection
512 <conn> plus dependent CHILD SAs whereas ipsec down <conn>[*] deletes all
513 IKE SA instances of connection <conn>.
515 - Fixed a regression introduced in 4.3.0 where EAP authentication calculated
516 the AUTH payload incorrectly. Further, the EAP-MSCHAPv2 MSK key derivation
517 has been updated to be compatible with the Windows 7 Release Candidate.
519 - Refactored installation of triggering policies. Routed policies are handled
520 outside of IKE_SAs to keep them installed in any case. A tunnel gets
521 established only once, even if initiation is delayed due network outages.
523 - Improved the handling of multiple acquire signals triggered by the kernel.
525 - Fixed two DoS vulnerabilities in the charon daemon that were discovered by
526 fuzzing techniques: 1) Sending a malformed IKE_SA_INIT request leaved an
527 incomplete state which caused a null pointer dereference if a subsequent
528 CREATE_CHILD_SA request was sent. 2) Sending an IKE_AUTH request with either
529 a missing TSi or TSr payload caused a null pointer derefence because the
530 checks for TSi and TSr were interchanged. The IKEv2 fuzzer used was
531 developed by the Orange Labs vulnerability research team. The tool was
532 initially written by Gabriel Campana and is now maintained by Laurent Butti.
534 - Added support for AES counter mode in ESP in IKEv2 using the proposal
535 keywords aes128ctr, aes192ctr and aes256ctr.
537 - Further progress in refactoring pluto: Use of the curl and ldap plugins
538 for fetching crls and OCSP. Use of the random plugin to get keying material
539 from /dev/random or /dev/urandom. Use of the openssl plugin as an alternative
540 to the aes, des, sha1, sha2, and md5 plugins. The blowfish, twofish, and
541 serpent encryption plugins are now optional and are not enabled by default.
547 - Support for the IKEv2 Multiple Authentication Exchanges extension (RFC4739).
548 Initiators and responders can use several authentication rounds (e.g. RSA
549 followed by EAP) to authenticate. The new ipsec.conf leftauth/rightauth and
550 leftauth2/rightauth2 parameters define own authentication rounds or setup
551 constraints for the remote peer. See the ipsec.conf man page for more detials.
553 - If glibc printf hooks (register_printf_function) are not available,
554 strongSwan can use the vstr string library to run on non-glibc systems.
556 - The IKEv2 charon daemon can now configure the ESP CAMELLIA-CBC cipher
557 (esp=camellia128|192|256).
559 - Refactored the pluto and scepclient code to use basic functions (memory
560 allocation, leak detective, chunk handling, printf_hooks, strongswan.conf
561 attributes, ASN.1 parser, etc.) from the libstrongswan library.
563 - Up to two DNS and WINS servers to be sent via IKEv1 ModeConfig can be
564 configured in the pluto section of strongswan.conf.
570 - The new server-side EAP RADIUS plugin (--enable-eap-radius)
571 relays EAP messages to and from a RADIUS server. Successfully
572 tested with with a freeradius server using EAP-MD5 and EAP-SIM.
574 - A vulnerability in the Dead Peer Detection (RFC 3706) code was found by
575 Gerd v. Egidy <gerd.von.egidy@intra2net.com> of Intra2net AG affecting
576 all Openswan and strongSwan releases. A malicious (or expired ISAKMP)
577 R_U_THERE or R_U_THERE_ACK Dead Peer Detection packet can cause the
578 pluto IKE daemon to crash and restart. No authentication or encryption
579 is required to trigger this bug. One spoofed UDP packet can cause the
580 pluto IKE daemon to restart and be unresponsive for a few seconds while
581 restarting. This DPD null state vulnerability has been officially
582 registered as CVE-2009-0790 and is fixed by this release.
584 - ASN.1 to time_t conversion caused a time wrap-around for
585 dates after Jan 18 03:14:07 UTC 2038 on 32-bit platforms.
586 As a workaround such dates are set to the maximum representable
587 time, i.e. Jan 19 03:14:07 UTC 2038.
589 - Distinguished Names containing wildcards (*) are not sent in the
596 - Fixed a use-after-free bug in the DPD timeout section of the
597 IKEv1 pluto daemon which sporadically caused a segfault.
599 - Fixed a crash in the IKEv2 charon daemon occurring with
600 mixed RAM-based and SQL-based virtual IP address pools.
602 - Fixed ASN.1 parsing of algorithmIdentifier objects where the
603 parameters field is optional.
605 - Ported nm plugin to NetworkManager 7.1.
611 - Support of the EAP-MSCHAPv2 protocol enabled by the option
612 --enable-eap-mschapv2. Requires the MD4 hash algorithm enabled
613 either by --enable-md4 or --enable-openssl.
615 - Assignment of up to two DNS and up to two WINS servers to peers via
616 the IKEv2 Configuration Payload (CP). The IPv4 or IPv6 nameserver
617 addresses are defined in strongswan.conf.
619 - The strongSwan applet for the Gnome NetworkManager is now built and
620 distributed as a separate tarball under the name NetworkManager-strongswan.
626 - Fixed ESP NULL encryption broken by the refactoring of keymat.c.
627 Also introduced proper initialization and disposal of keying material.
629 - Fixed the missing listing of connection definitions in ipsec statusall
630 broken by an unfortunate local variable overload.
636 - Several performance improvements to handle thousands of tunnels with almost
637 linear upscaling. All relevant data structures have been replaced by faster
638 counterparts with better lookup times.
640 - Better parallelization to run charon on multiple cores. Due to improved
641 ressource locking and other optimizations the daemon can take full
642 advantage of 16 or even more cores.
644 - The load-tester plugin can use a NULL Diffie-Hellman group and simulate
645 unique identities and certificates by signing peer certificates using a CA
648 - The redesigned stroke in-memory IP pool handles leases. The "ipsec leases"
649 command queries assigned leases.
651 - Added support for smartcards in charon by using the ENGINE API provided by
652 OpenSSL, based on patches by Michael Roßberg.
654 - The Padlock plugin supports the hardware RNG found on VIA CPUs to provide a
655 reliable source of randomness.
660 - Flexible configuration of logging subsystem allowing to log to multiple
661 syslog facilities or to files using fine-grained log levels for each target.
663 - Load testing plugin to do stress testing of the IKEv2 daemon against self
664 or another host. Found and fixed issues during tests in the multi-threaded
665 use of the OpenSSL plugin.
667 - Added profiling code to synchronization primitives to find bottlenecks if
668 running on multiple cores. Found and fixed an issue where parts of the
669 Diffie-Hellman calculation acquired an exclusive lock. This greatly improves
670 parallelization to multiple cores.
672 - updown script invocation has been separated into a plugin of its own to
673 further slim down the daemon core.
675 - Separated IKE_SA/CHILD_SA key derivation process into a closed system,
676 allowing future implementations to use a secured environment in e.g. kernel
679 - The kernel interface of charon has been modularized. XFRM NETLINK (default)
680 and PFKEY (--enable-kernel-pfkey) interface plugins for the native IPsec
681 stack of the Linux 2.6 kernel as well as a PFKEY interface for the KLIPS
682 IPsec stack (--enable-kernel-klips) are provided.
684 - Basic Mobile IPv6 support has been introduced, securing Binding Update
685 messages as well as tunneled traffic between Mobile Node and Home Agent.
686 The installpolicy=no option allows peaceful cooperation with a dominant
687 mip6d daemon and the new type=transport_proxy implements the special MIPv6
688 IPsec transport proxy mode where the IKEv2 daemon uses the Care-of-Address
689 but the IPsec SA is set up for the Home Address.
691 - Implemented migration of Mobile IPv6 connections using the KMADDRESS
692 field contained in XFRM_MSG_MIGRATE messages sent by the mip6d daemon
693 via the Linux 2.6.28 (or appropriately patched) kernel.
699 - IKEv2 charon daemon supports authentication based on raw public keys
700 stored in the SQL database backend. The ipsec listpubkeys command
701 lists the available raw public keys via the stroke interface.
703 - Several MOBIKE improvements: Detect changes in NAT mappings in DPD exchanges,
704 handle events if kernel detects NAT mapping changes in UDP-encapsulated
705 ESP packets (requires kernel patch), reuse old addesses in MOBIKE updates as
706 long as possible and other fixes.
708 - Fixed a bug in addr_in_subnet() which caused insertion of wrong source
709 routes for destination subnets having netwmasks not being a multiple of 8 bits.
710 Thanks go to Wolfgang Steudel, TU Ilmenau for reporting this bug.
716 - Fixed a Denial-of-Service vulnerability where an IKE_SA_INIT message with
717 a KE payload containing zeroes only can cause a crash of the IKEv2 charon
718 daemon due to a NULL pointer returned by the mpz_export() function of the
719 GNU Multiprecision Library (GMP). Thanks go to Mu Dynamics Research Labs
720 for making us aware of this problem.
722 - The new agent plugin provides a private key implementation on top of an
725 - The NetworkManager plugin has been extended to support certificate client
726 authentication using RSA keys loaded from a file or using ssh-agent.
728 - Daemon capability dropping has been ported to libcap and must be enabled
729 explicitly --with-capabilities=libcap. Future version will support the
730 newer libcap2 library.
732 - ipsec listalgs lists the IKEv2 cryptografic algorithms registered with the
733 charon keying daemon.
739 - A NetworkManager plugin allows GUI-based configuration of road-warrior
740 clients in a simple way. It features X509 based gateway authentication
741 and EAP client authentication, tunnel setup/teardown and storing passwords
742 in the Gnome Keyring.
744 - A new EAP-GTC plugin implements draft-sheffer-ikev2-gtc-00.txt and allows
745 username/password authentication against any PAM service on the gateway.
746 The new EAP method interacts nicely with the NetworkManager plugin and allows
747 client authentication against e.g. LDAP.
749 - Improved support for the EAP-Identity method. The new ipsec.conf eap_identity
750 parameter defines an additional identity to pass to the server in EAP
753 - The "ipsec statusall" command now lists CA restrictions, EAP
754 authentication types and EAP identities.
756 - Fixed two multithreading deadlocks occurring when starting up
757 several hundred tunnels concurrently.
759 - Fixed the --enable-integrity-test configure option which
760 computes a SHA-1 checksum over the libstrongswan library.
766 - Consistent logging of IKE and CHILD SAs at the audit (AUD) level.
768 - Improved the performance of the SQL-based virtual IP address pool
769 by introducing an additional addresses table. The leases table
770 storing only history information has become optional and can be
771 disabled by setting charon.plugins.sql.lease_history = no in
774 - The XFRM_STATE_AF_UNSPEC flag added to xfrm.h allows IPv4-over-IPv6
775 and IPv6-over-IPv4 tunnels with the 2.6.26 and later Linux kernels.
777 - management of different virtual IP pools for different
778 network interfaces have become possible.
780 - fixed a bug which prevented the assignment of more than 256
781 virtual IP addresses from a pool managed by an sql database.
783 - fixed a bug which did not delete own IPCOMP SAs in the kernel.
789 - Added statistics functions to ipsec pool --status and ipsec pool --leases
790 and input validation checks to various ipsec pool commands.
792 - ipsec statusall now lists all loaded charon plugins and displays
793 the negotiated IKEv2 cipher suite proposals.
795 - The openssl plugin supports the elliptic curve Diffie-Hellman groups
796 19, 20, 21, 25, and 26.
798 - The openssl plugin supports ECDSA authentication using elliptic curve
801 - Fixed a bug in stroke which caused multiple charon threads to close
802 the file descriptors during packet transfers over the stroke socket.
804 - ESP sequence numbers are now migrated in IPsec SA updates handled by
805 MOBIKE. Works only with Linux kernels >= 2.6.17.
811 - Fixed the strongswan.conf path configuration problem that occurred when
812 --sysconfig was not set explicitly in ./configure.
814 - Fixed a number of minor bugs that where discovered during the 4th
815 IKEv2 interoperability workshop in San Antonio, TX.
821 - Plugins for libstrongswan and charon can optionally be loaded according
822 to a configuration in strongswan.conf. Most components provide a
823 "load = " option followed by a space separated list of plugins to load.
824 This allows e.g. the fallback from a hardware crypto accelerator to
825 to software-based crypto plugins.
827 - Charons SQL plugin has been extended by a virtual IP address pool.
828 Configurations with a rightsourceip=%poolname setting query a SQLite or
829 MySQL database for leases. The "ipsec pool" command helps in administrating
830 the pool database. See ipsec pool --help for the available options
832 - The Authenticated Encryption Algorithms AES-CCM-8/12/16 and AES-GCM-8/12/16
833 for ESP are now supported starting with the Linux 2.6.25 kernel. The
834 syntax is e.g. esp=aes128ccm12 or esp=aes256gcm16.
840 - Support for "Hash and URL" encoded certificate payloads has been implemented
841 in the IKEv2 daemon charon. Using the "certuribase" option of a CA section
842 allows to assign a base URL to all certificates issued by the specified CA.
843 The final URL is then built by concatenating that base and the hex encoded
844 SHA1 hash of the DER encoded certificate. Note that this feature is disabled
845 by default and must be enabled using the option "charon.hash_and_url".
847 - The IKEv2 daemon charon now supports the "uniqueids" option to close multiple
848 IKE_SAs with the same peer. The option value "keep" prefers existing
849 connection setups over new ones, where the value "replace" replaces existing
852 - The crypto factory in libstrongswan additionally supports random number
853 generators, plugins may provide other sources of randomness. The default
854 plugin reads raw random data from /dev/(u)random.
856 - Extended the credential framework by a caching option to allow plugins
857 persistent caching of fetched credentials. The "cachecrl" option has been
860 - The new trustchain verification introduced in 4.2.0 has been parallelized.
861 Threads fetching CRL or OCSP information no longer block other threads.
863 - A new IKEv2 configuration attribute framework has been introduced allowing
864 plugins to provide virtual IP addresses, and in the future, other
865 configuration attribute services (e.g. DNS/WINS servers).
867 - The stroke plugin has been extended to provide virtual IP addresses from
868 a pool defined in ipsec.conf. The "rightsourceip" parameter now accepts
869 address pools in CIDR notation (e.g. 10.1.1.0/24). The parameter also accepts
870 the value "%poolname", where "poolname" identifies a pool provided by a
873 - Fixed compilation on uClibc and a couple of other minor bugs.
875 - Set DPD defaults in ipsec starter to dpd_delay=30s and dpd_timeout=150s.
877 - The IKEv1 pluto daemon now supports the ESP encryption algorithm CAMELLIA
878 with key lengths of 128, 192, and 256 bits, as well as the authentication
879 algorithm AES_XCBC_MAC. Configuration example: esp=camellia192-aesxcbc.
885 - libstrongswan has been modularized to attach crypto algorithms,
886 credential implementations (keys, certificates) and fetchers dynamically
887 through plugins. Existing code has been ported to plugins:
888 - RSA/Diffie-Hellman implementation using the GNU Multi Precision library
889 - X509 certificate system supporting CRLs, OCSP and attribute certificates
890 - Multiple plugins providing crypto algorithms in software
891 - CURL and OpenLDAP fetcher
893 - libstrongswan gained a relational database API which uses pluggable database
894 providers. Plugins for MySQL and SQLite are available.
896 - The IKEv2 keying daemon charon is more extensible. Generic plugins may provide
897 connection configuration, credentials and EAP methods or control the daemon.
898 Existing code has been ported to plugins:
899 - EAP-AKA, EAP-SIM, EAP-MD5 and EAP-Identity
900 - stroke configuration, credential and control (compatible to pluto)
901 - XML bases management protocol to control and query the daemon
902 The following new plugins are available:
903 - An experimental SQL configuration, credential and logging plugin on
904 top of either MySQL or SQLite
905 - A unit testing plugin to run tests at daemon startup
907 - The authentication and credential framework in charon has been heavily
908 refactored to support modular credential providers, proper
909 CERTREQ/CERT payload exchanges and extensible authorization rules.
911 - The framework of strongSwan Manager has envolved to the web application
912 framework libfast (FastCGI Application Server w/ Templates) and is usable
913 by other applications.
919 - IKE rekeying in NAT situations did not inherit the NAT conditions
920 to the rekeyed IKE_SA so that the UDP encapsulation was lost with
921 the next CHILD_SA rekeying.
923 - Wrong type definition of the next_payload variable in id_payload.c
924 caused an INVALID_SYNTAX error on PowerPC platforms.
926 - Implemented IKEv2 EAP-SIM server and client test modules that use
927 triplets stored in a file. For details on the configuration see
928 the scenario 'ikev2/rw-eap-sim-rsa'.
934 - Fixed error in the ordering of the certinfo_t records in the ocsp cache that
935 caused multiple entries of the same serial number to be created.
937 - Implementation of a simple EAP-MD5 module which provides CHAP
938 authentication. This may be interesting in conjunction with certificate
939 based server authentication, as weak passwords can't be brute forced
940 (in contradiction to traditional IKEv2 PSK).
942 - A complete software based implementation of EAP-AKA, using algorithms
943 specified in 3GPP2 (S.S0055). This implementation does not use an USIM,
944 but reads the secrets from ipsec.secrets. Make sure to read eap_aka.h
947 - Support for vendor specific EAP methods using Expanded EAP types. The
948 interface to EAP modules has been slightly changed, so make sure to
949 check the changes if you're already rolling your own modules.
955 - The default _updown script now dynamically inserts and removes ip6tables
956 firewall rules if leftfirewall=yes is set in IPv6 connections. New IPv6
957 net-net and roadwarrior (PSK/RSA) scenarios for both IKEv1 and IKEV2 were
960 - Implemented RFC4478 repeated authentication to force EAP/Virtual-IP clients
961 to reestablish an IKE_SA within a given timeframe.
963 - strongSwan Manager supports configuration listing, initiation and termination
964 of IKE and CHILD_SAs.
966 - Fixes and improvements to multithreading code.
968 - IKEv2 plugins have been renamed to libcharon-* to avoid naming conflicts.
969 Make sure to remove the old plugins in $libexecdir/ipsec, otherwise they get
976 - Removed recursive pthread mutexes since uClibc doesn't support them.
982 - In NAT traversal situations and multiple queued Quick Modes,
983 those pending connections inserted by auto=start after the
984 port floating from 500 to 4500 were erronously deleted.
986 - Added a "forceencaps" connection parameter to enforce UDP encapsulation
987 to surmount restrictive firewalls. NAT detection payloads are faked to
988 simulate a NAT situation and trick the other peer into NAT mode (IKEv2 only).
990 - Preview of strongSwan Manager, a web based configuration and monitoring
991 application. It uses a new XML control interface to query the IKEv2 daemon
992 (see http://wiki.strongswan.org/wiki/Manager).
994 - Experimental SQLite configuration backend which will provide the configuration
995 interface for strongSwan Manager in future releases.
997 - Further improvements to MOBIKE support.
1003 - Since some third party IKEv2 implementations run into
1004 problems with strongSwan announcing MOBIKE capability per
1005 default, MOBIKE can be disabled on a per-connection-basis
1006 using the mobike=no option. Whereas mobike=no disables the
1007 sending of the MOBIKE_SUPPORTED notification and the floating
1008 to UDP port 4500 with the IKE_AUTH request even if no NAT
1009 situation has been detected, strongSwan will still support
1010 MOBIKE acting as a responder.
1012 - the default ipsec routing table plus its corresponding priority
1013 used for inserting source routes has been changed from 100 to 220.
1014 It can be configured using the --with-ipsec-routing-table and
1015 --with-ipsec-routing-table-prio options.
1017 - the --enable-integrity-test configure option tests the
1018 integrity of the libstrongswan crypto code during the charon
1021 - the --disable-xauth-vid configure option disables the sending
1022 of the XAUTH vendor ID. This can be used as a workaround when
1023 interoperating with some Windows VPN clients that get into
1024 trouble upon reception of an XAUTH VID without eXtended
1025 AUTHentication having been configured.
1027 - ipsec stroke now supports the rereadsecrets, rereadaacerts,
1028 rereadacerts, and listacerts options.
1034 - If a DNS lookup failure occurs when resolving right=%<FQDN>
1035 or right=<FQDN> combined with rightallowany=yes then the
1036 connection is not updated by ipsec starter thus preventing
1037 the disruption of an active IPsec connection. Only if the DNS
1038 lookup successfully returns with a changed IP address the
1039 corresponding connection definition is updated.
1041 - Routes installed by the keying daemons are now in a separate
1042 routing table with the ID 100 to avoid conflicts with the main
1043 table. Route lookup for IKEv2 traffic is done in userspace to ignore
1044 routes installed for IPsec, as IKE traffic shouldn't get encapsulated.
1050 - The pluto IKEv1 daemon now exhibits the same behaviour as its
1051 IKEv2 companion charon by inserting an explicit route via the
1052 _updown script only if a sourceip exists. This is admissible
1053 since routing through the IPsec tunnel is handled automatically
1054 by NETKEY's IPsec policies. As a consequence the left|rightnexthop
1055 parameter is not required any more.
1057 - The new IKEv1 parameter right|leftallowany parameters helps to handle
1058 the case where both peers possess dynamic IP addresses that are
1059 usually resolved using DynDNS or a similar service. The configuration
1064 can be used by the initiator to start up a connection to a peer
1065 by resolving peer.foo.bar into the currently allocated IP address.
1066 Thanks to the rightallowany flag the connection behaves later on
1071 so that the peer can rekey the connection as an initiator when his
1072 IP address changes. An alternative notation is
1076 which will implicitly set rightallowany=yes.
1078 - ipsec starter now fails more gracefully in the presence of parsing
1079 errors. Flawed ca and conn section are discarded and pluto is started
1080 if non-fatal errors only were encountered. If right=%peer.foo.bar
1081 cannot be resolved by DNS then right=%any will be used so that passive
1082 connections as a responder are still possible.
1084 - The new pkcs11initargs parameter that can be placed in the
1085 setup config section of /etc/ipsec.conf allows the definition
1086 of an argument string that is used with the PKCS#11 C_Initialize()
1087 function. This non-standard feature is required by the NSS softoken
1088 library. This patch was contributed by Robert Varga.
1090 - Fixed a bug in ipsec starter introduced by strongswan-2.8.5
1091 which caused a segmentation fault in the presence of unknown
1092 or misspelt keywords in ipsec.conf. This bug fix was contributed
1095 - Partial support for MOBIKE in IKEv2. The initiator acts on interface/
1096 address configuration changes and updates IKE and IPsec SAs dynamically.
1102 - IKEv2 peer configuration selection now can be based on a given
1103 certification authority using the rightca= statement.
1105 - IKEv2 authentication based on RSA signatures now can handle multiple
1106 certificates issued for a given peer ID. This allows a smooth transition
1107 in the case of a peer certificate renewal.
1109 - IKEv2: Support for requesting a specific virtual IP using leftsourceip on the
1110 client and returning requested virtual IPs using rightsourceip=%config
1111 on the server. If the server does not support configuration payloads, the
1112 client enforces its leftsourceip parameter.
1114 - The ./configure options --with-uid/--with-gid allow pluto and charon
1115 to drop their privileges to a minimum and change to an other UID/GID. This
1116 improves the systems security, as a possible intruder may only get the
1117 CAP_NET_ADMIN capability.
1119 - Further modularization of charon: Pluggable control interface and
1120 configuration backend modules provide extensibility. The control interface
1121 for stroke is included, and further interfaces using DBUS (NetworkManager)
1122 or XML are on the way. A backend for storing configurations in the daemon
1123 is provided and more advanced backends (using e.g. a database) are trivial
1126 - Fixed a compilation failure in libfreeswan occurring with Linux kernel
1133 - Support for an additional Diffie-Hellman exchange when creating/rekeying
1134 a CHILD_SA in IKEv2 (PFS). PFS is enabled when the proposal contains a
1135 DH group (e.g. "esp=aes128-sha1-modp1536"). Further, DH group negotiation
1136 is implemented properly for rekeying.
1138 - Support for the AES-XCBC-96 MAC algorithm for IPsec SAs when using IKEv2
1139 (requires linux >= 2.6.20). It is enabled using e.g. "esp=aes256-aesxcbc".
1141 - Working IPv4-in-IPv6 and IPv6-in-IPv4 tunnels for linux >= 2.6.21.
1143 - Added support for EAP modules which do not establish an MSK.
1145 - Removed the dependencies from the /usr/include/linux/ headers by
1146 including xfrm.h, ipsec.h, and pfkeyv2.h in the distribution.
1148 - crlNumber is now listed by ipsec listcrls
1150 - The xauth_modules.verify_secret() function now passes the
1157 - Server side cookie support. If to may IKE_SAs are in CONNECTING state,
1158 cookies are enabled and protect against DoS attacks with faked source
1159 addresses. Number of IKE_SAs in CONNECTING state is also limited per
1160 peer address to avoid resource exhaustion. IKE_SA_INIT messages are
1161 compared to properly detect retransmissions and incoming retransmits are
1162 detected even if the IKE_SA is blocked (e.g. doing OCSP fetches).
1164 - The IKEv2 daemon charon now supports dynamic http- and ldap-based CRL
1165 fetching enabled by crlcheckinterval > 0 and caching fetched CRLs
1166 enabled by cachecrls=yes.
1168 - Added the configuration options --enable-nat-transport which enables
1169 the potentially insecure NAT traversal for IPsec transport mode and
1170 --disable-vendor-id which disables the sending of the strongSwan
1173 - Fixed a long-standing bug in the pluto IKEv1 daemon which caused
1174 a segmentation fault if a malformed payload was detected in the
1175 IKE MR2 message and pluto tried to send an encrypted notification
1178 - Added the NATT_IETF_02_N Vendor ID in order to support IKEv1 connections
1179 with Windows 2003 Server which uses a wrong VID hash.
1185 - Support of SHA2_384 hash function for protecting IKEv1
1186 negotiations and support of SHA2 signatures in X.509 certificates.
1188 - Fixed a serious bug in the computation of the SHA2-512 HMAC
1189 function. Introduced automatic self-test of all IKEv1 hash
1190 and hmac functions during pluto startup. Failure of a self-test
1191 currently issues a warning only but does not exit pluto [yet].
1193 - Support for SHA2-256/384/512 PRF and HMAC functions in IKEv2.
1195 - Full support of CA information sections. ipsec listcainfos
1196 now shows all collected crlDistributionPoints and OCSP
1199 - Support of the Online Certificate Status Protocol (OCSP) for IKEv2.
1200 This feature requires the HTTP fetching capabilities of the libcurl
1201 library which must be enabled by setting the --enable-http configure
1204 - Refactored core of the IKEv2 message processing code, allowing better
1205 code reuse and separation.
1207 - Virtual IP support in IKEv2 using INTERNAL_IP4/6_ADDRESS configuration
1208 payload. Additionally, the INTERNAL_IP4/6_DNS attribute is interpreted
1209 by the requestor and installed in a resolv.conf file.
1211 - The IKEv2 daemon charon installs a route for each IPsec policy to use
1212 the correct source address even if an application does not explicitly
1215 - Integrated the EAP framework into charon which loads pluggable EAP library
1216 modules. The ipsec.conf parameter authby=eap initiates EAP authentication
1217 on the client side, while the "eap" parameter on the server side defines
1218 the EAP method to use for client authentication.
1219 A generic client side EAP-Identity module and an EAP-SIM authentication
1220 module using a third party card reader implementation are included.
1222 - Added client side support for cookies.
1224 - Integrated the fixes done at the IKEv2 interoperability bakeoff, including
1225 strict payload order, correct INVALID_KE_PAYLOAD rejection and other minor
1226 fixes to enhance interoperability with other implementations.
1232 - strongSwan now interoperates with the NCP Secure Entry Client,
1233 the Shrew Soft VPN Client, and the Cisco VPN client, doing both
1234 XAUTH and Mode Config.
1236 - UNITY attributes are now recognized and UNITY_BANNER is set
1237 to a default string.
1243 - IKEv1: Support for extended authentication (XAUTH) in combination
1244 with ISAKMP Main Mode RSA or PSK authentication. Both client and
1245 server side were implemented. Handling of user credentials can
1246 be done by a run-time loadable XAUTH module. By default user
1247 credentials are stored in ipsec.secrets.
1249 - IKEv2: Support for reauthentication when rekeying
1251 - IKEv2: Support for transport mode
1253 - fixed a lot of bugs related to byte order
1255 - various other bugfixes
1261 - IKEv1: Implementation of ModeConfig push mode via the new connection
1262 keyword modeconfig=push allows interoperability with Cisco VPN gateways.
1264 - IKEv1: The command ipsec statusall now shows "DPD active" for all
1265 ISAKMP SAs that are under active Dead Peer Detection control.
1267 - IKEv2: Charon's logging and debugging framework has been completely rewritten.
1268 Instead of logger, special printf() functions are used to directly
1269 print objects like hosts (%H) identifications (%D), certificates (%Q),
1270 etc. The number of debugging levels have been reduced to:
1272 0 (audit), 1 (control), 2 (controlmore), 3 (raw), 4 (private)
1274 The debugging levels can either be specified statically in ipsec.conf as
1277 charondebug="lib 1, cfg 3, net 2"
1279 or changed at runtime via stroke as
1281 ipsec stroke loglevel cfg 2
1287 - Implemented full support for IPv6-in-IPv6 tunnels.
1289 - Added configuration options for dead peer detection in IKEv2. dpd_action
1290 types "clear", "hold" and "restart" are supported. The dpd_timeout
1291 value is not used, as the normal retransmission policy applies to
1292 detect dead peers. The dpd_delay parameter enables sending of empty
1293 informational message to detect dead peers in case of inactivity.
1295 - Added support for preshared keys in IKEv2. PSK keys configured in
1296 ipsec.secrets are loaded. The authby parameter specifies the authentication
1297 method to authentificate ourself, the other peer may use PSK or RSA.
1299 - Changed retransmission policy to respect the keyingtries parameter.
1301 - Added private key decryption. PEM keys encrypted with AES-128/192/256
1302 or 3DES are supported.
1304 - Implemented DES/3DES algorithms in libstrongswan. 3DES can be used to
1305 encrypt IKE traffic.
1307 - Implemented SHA-256/384/512 in libstrongswan, allows usage of certificates
1308 signed with such a hash algorithm.
1310 - Added initial support for updown scripts. The actions up-host/client and
1311 down-host/client are executed. The leftfirewall=yes parameter
1312 uses the default updown script to insert dynamic firewall rules, a custom
1313 updown script may be specified with the leftupdown parameter.
1319 - Added support for the auto=route ipsec.conf parameter and the
1320 ipsec route/unroute commands for IKEv2. This allows to set up IKE_SAs and
1321 CHILD_SAs dynamically on demand when traffic is detected by the
1324 - Added support for rekeying IKE_SAs in IKEv2 using the ikelifetime parameter.
1325 As specified in IKEv2, no reauthentication is done (unlike in IKEv1), only
1326 new keys are generated using perfect forward secrecy. An optional flag
1327 which enforces reauthentication will be implemented later.
1329 - "sha" and "sha1" are now treated as synonyms in the ike= and esp=
1330 algorithm configuration statements.
1336 - Full X.509 certificate trust chain verification has been implemented.
1337 End entity certificates can be exchanged via CERT payloads. The current
1338 default is leftsendcert=always, since CERTREQ payloads are not supported
1339 yet. Optional CRLs must be imported locally into /etc/ipsec.d/crls.
1341 - Added support for leftprotoport/rightprotoport parameters in IKEv2. IKEv2
1342 would offer more possibilities for traffic selection, but the Linux kernel
1343 currently does not support it. That's why we stick with these simple
1344 ipsec.conf rules for now.
1346 - Added Dead Peer Detection (DPD) which checks liveliness of remote peer if no
1347 IKE or ESP traffic is received. DPD is currently hardcoded (dpdaction=clear,
1350 - Initial NAT traversal support in IKEv2. Charon includes NAT detection
1351 notify payloads to detect NAT routers between the peers. It switches
1352 to port 4500, uses UDP encapsulated ESP packets, handles peer address
1353 changes gracefully and sends keep alive message periodically.
1355 - Reimplemented IKE_SA state machine for charon, which allows simultaneous
1356 rekeying, more shared code, cleaner design, proper retransmission
1357 and a more extensible code base.
1359 - The mixed PSK/RSA roadwarrior detection capability introduced by the
1360 strongswan-2.7.0 release necessitated the pre-parsing of the IKE proposal
1361 payloads by the responder right before any defined IKE Main Mode state had
1362 been established. Although any form of bad proposal syntax was being correctly
1363 detected by the payload parser, the subsequent error handler didn't check
1364 the state pointer before logging current state information, causing an
1365 immediate crash of the pluto keying daemon due to a NULL pointer.
1371 - Added algorithm selection to charon: New default algorithms for
1372 ike=aes128-sha-modp2048, as both daemons support it. The default
1373 for IPsec SAs is now esp=aes128-sha,3des-md5. charon handles
1374 the ike/esp parameter the same way as pluto. As this syntax does
1375 not allow specification of a pseudo random function, the same
1376 algorithm as for integrity is used (currently sha/md5). Supported
1378 Encryption: aes128, aes192, aes256
1379 Integrity/PRF: md5, sha (using hmac)
1380 DH-Groups: modp768, 1024, 1536, 2048, 4096, 8192
1382 Encryption: aes128, aes192, aes256, 3des, blowfish128,
1383 blowfish192, blowfish256
1384 Integrity: md5, sha1
1385 More IKE encryption algorithms will come after porting libcrypto into
1388 - initial support for rekeying CHILD_SAs using IKEv2. Currently no
1389 perfect forward secrecy is used. The rekeying parameters rekey,
1390 rekeymargin, rekeyfuzz and keylife from ipsec.conf are now supported
1391 when using IKEv2. WARNING: charon currently is unable to handle
1392 simultaneous rekeying. To avoid such a situation, use a large
1393 rekeyfuzz, or even better, set rekey=no on one peer.
1395 - support for host2host, net2net, host2net (roadwarrior) tunnels
1396 using predefined RSA certificates (see uml scenarios for
1397 configuration examples).
1399 - new build environment featuring autotools. Features such
1400 as HTTP, LDAP and smartcard support may be enabled using
1401 the ./configure script. Changing install directories
1402 is possible, too. See ./configure --help for more details.
1404 - better integration of charon with ipsec starter, which allows
1405 (almost) transparent operation with both daemons. charon
1406 handles ipsec commands up, down, status, statusall, listall,
1407 listcerts and allows proper load, reload and delete of connections
1414 - initial support of the IKEv2 protocol. Connections in
1415 ipsec.conf designated by keyexchange=ikev2 are negotiated
1416 by the new IKEv2 charon keying daemon whereas those marked
1417 by keyexchange=ikev1 or the default keyexchange=ike are
1418 handled thy the IKEv1 pluto keying daemon. Currently only
1419 a limited subset of functions are available with IKEv2
1420 (Default AES encryption, authentication based on locally
1421 imported X.509 certificates, unencrypted private RSA keys
1422 in PKCS#1 file format, limited functionality of the ipsec
1429 - the dynamic iptables rules from the _updown_x509 template
1430 for KLIPS and the _updown_policy template for NETKEY have
1431 been merged into the default _updown script. The existing
1432 left|rightfirewall keyword causes the automatic insertion
1433 and deletion of ACCEPT rules for tunneled traffic upon
1434 the successful setup and teardown of an IPsec SA, respectively.
1435 left|rightfirwall can be used with KLIPS under any Linux 2.4
1436 kernel or with NETKEY under a Linux kernel version >= 2.6.16
1437 in conjunction with iptables >= 1.3.5. For NETKEY under a Linux
1438 kernel version < 2.6.16 which does not support IPsec policy
1439 matching yet, please continue to use a copy of the _updown_espmark
1440 template loaded via the left|rightupdown keyword.
1442 - a new left|righthostaccess keyword has been introduced which
1443 can be used in conjunction with left|rightfirewall and the
1444 default _updown script. By default leftfirewall=yes inserts
1445 a bi-directional iptables FORWARD rule for a local client network
1446 with a netmask different from 255.255.255.255 (single host).
1447 This does not allow to access the VPN gateway host via its
1448 internal network interface which is part of the client subnet
1449 because an iptables INPUT and OUTPUT rule would be required.
1450 lefthostaccess=yes will cause this additional ACCEPT rules to
1453 - mixed PSK|RSA roadwarriors are now supported. The ISAKMP proposal
1454 payload is preparsed in order to find out whether the roadwarrior
1455 requests PSK or RSA so that a matching connection candidate can
1462 - the new _updown_policy template allows ipsec policy based
1463 iptables firewall rules. Required are iptables version
1464 >= 1.3.5 and linux kernel >= 2.6.16. This script obsoletes
1465 the _updown_espmark template, so that no INPUT mangle rules
1466 are required any more.
1468 - added support of DPD restart mode
1470 - ipsec starter now allows the use of wildcards in include
1471 statements as e.g. in "include /etc/my_ipsec/*.conf".
1472 Patch courtesy of Matthias Haas.
1474 - the Netscape OID 'employeeNumber' is now recognized and can be
1475 used as a Relative Distinguished Name in certificates.
1481 - /etc/init.d/ipsec or /etc/rc.d/ipsec is now a copy of the ipsec
1482 command and not of ipsec setup any more.
1484 - ipsec starter now supports AH authentication in conjunction with
1485 ESP encryption. AH authentication is configured in ipsec.conf
1486 via the auth=ah parameter.
1488 - The command ipsec scencrypt|scdecrypt <args> is now an alias for
1489 ipsec whack --scencrypt|scdecrypt <args>.
1491 - get_sa_info() now determines for the native netkey IPsec stack
1492 the exact time of the last use of an active eroute. This information
1493 is used by the Dead Peer Detection algorithm and is also displayed by
1494 the ipsec status command.
1500 - running under the native Linux 2.6 IPsec stack, the function
1501 get_sa_info() is called by ipsec auto --status to display the current
1502 number of transmitted bytes per IPsec SA.
1504 - get_sa_info() is also used by the Dead Peer Detection process to detect
1505 recent ESP activity. If ESP traffic was received from the peer within
1506 the last dpd_delay interval then no R_Y_THERE notification must be sent.
1508 - strongSwan now supports the Relative Distinguished Name "unstructuredName"
1509 in ID_DER_ASN1_DN identities. The following notations are possible:
1511 rightid="unstructuredName=John Doe"
1512 rightid="UN=John Doe"
1514 - fixed a long-standing bug which caused PSK-based roadwarrior connections
1515 to segfault in the function id.c:same_id() called by keys.c:get_secret()
1516 if an FQDN, USER_FQDN, or Key ID was defined, as in the following example.
1523 - the ipsec command now supports most ipsec auto commands (e.g. ipsec listall).
1525 - ipsec starter didn't set host_addr and client.addr ports in whack msg.
1527 - in order to guarantee backwards-compatibility with the script-based
1528 auto function (e.g. auto --replace), the ipsec starter scripts stores
1529 the defaultroute information in the temporary file /var/run/ipsec.info.
1531 - The compile-time option USE_XAUTH_VID enables the sending of the XAUTH
1532 Vendor ID which is expected by Cisco PIX 7 boxes that act as IKE Mode Config
1535 - the ipsec starter now also recognizes the parameters authby=never and
1536 type=passthrough|pass|drop|reject.
1542 - ipsec starter now supports the also parameter which allows
1543 a modular structure of the connection definitions. Thus
1544 "ipsec start" is now ready to replace "ipsec setup".
1550 - Mathieu Lafon's popular ipsec starter tool has been added to the
1551 strongSwan distribution. Many thanks go to Stephan Scholz from astaro
1552 for his integration work. ipsec starter is a C program which is going
1553 to replace the various shell and awk starter scripts (setup, _plutoload,
1554 _plutostart, _realsetup, _startklips, _confread, and auto). Since
1555 ipsec.conf is now parsed only once, the starting of multiple tunnels is
1556 accelerated tremedously.
1558 - Added support of %defaultroute to the ipsec starter. If the IP address
1559 changes, a HUP signal to the ipsec starter will automatically
1560 reload pluto's connections.
1562 - moved most compile time configurations from pluto/Makefile to
1563 Makefile.inc by defining the options USE_LIBCURL, USE_LDAP,
1564 USE_SMARTCARD, and USE_NAT_TRAVERSAL_TRANSPORT_MODE.
1566 - removed the ipsec verify and ipsec newhostkey commands
1568 - fixed some 64-bit issues in formatted print statements
1570 - The scepclient functionality implementing the Simple Certificate
1571 Enrollment Protocol (SCEP) is nearly complete but hasn't been
1578 - CA certicates are now automatically loaded from a smartcard
1579 or USB crypto token and appear in the ipsec auto --listcacerts
1586 - when using "ipsec whack --scencrypt <data>" with a PKCS#11
1587 library that does not support the C_Encrypt() Cryptoki
1588 function (e.g. OpenSC), the RSA encryption is done in
1589 software using the public key fetched from the smartcard.
1591 - The scepclient function now allows to define the
1592 validity of a self-signed certificate using the --days,
1593 --startdate, and --enddate options. The default validity
1594 has been changed from one year to five years.
1600 - the config setup parameter pkcs11proxy=yes opens pluto's PKCS#11
1601 interface to other applications for RSA encryption and decryption
1602 via the whack interface. Notation:
1604 ipsec whack --scencrypt <data>
1605 [--inbase 16|hex|64|base64|256|text|ascii]
1606 [--outbase 16|hex|64|base64|256|text|ascii]
1609 ipsec whack --scdecrypt <data>
1610 [--inbase 16|hex|64|base64|256|text|ascii]
1611 [--outbase 16|hex|64|base64|256|text|ascii]
1614 The default setting for inbase and outbase is hex.
1616 The new proxy interface can be used for securing symmetric
1617 encryption keys required by the cryptoloop or dm-crypt
1618 disk encryption schemes, especially in the case when
1619 pkcs11keepstate=yes causes pluto to lock the pkcs11 slot
1622 - if the file /etc/ipsec.secrets is lacking during the startup of
1623 pluto then the root-readable file /etc/ipsec.d/private/myKey.der
1624 containing a 2048 bit RSA private key and a matching self-signed
1625 certificate stored in the file /etc/ipsec.d/certs/selfCert.der
1626 is automatically generated by calling the function
1628 ipsec scepclient --out pkcs1 --out cert-self
1630 scepclient was written by Jan Hutter and Martin Willi, students
1631 at the University of Applied Sciences in Rapperswil, Switzerland.
1637 - the current extension of the PKCS#7 framework introduced
1638 a parsing error in PKCS#7 wrapped X.509 certificates that are
1639 e.g. transmitted by Windows XP when multi-level CAs are used.
1640 the parsing syntax has been fixed.
1642 - added a patch by Gerald Richter which tolerates multiple occurrences
1643 of the ipsec0 interface when using KLIPS.
1649 - with gawk-3.1.4 the word "default2 has become a protected
1650 keyword for use in switch statements and cannot be used any
1651 more in the strongSwan scripts. This problem has been
1652 solved by renaming "default" to "defaults" and "setdefault"
1653 in the scripts _confread and auto, respectively.
1655 - introduced the parameter leftsendcert with the values
1657 always|yes (the default, always send a cert)
1658 ifasked (send the cert only upon a cert request)
1659 never|no (never send a cert, used for raw RSA keys and
1662 - fixed the initialization of the ESP key length to a default of
1663 128 bits in the case that the peer does not send a key length
1664 attribute for AES encryption.
1666 - applied Herbert Xu's uniqueIDs patch
1668 - applied Herbert Xu's CLOEXEC patches
1674 - CRLs can now be cached also in the case when the issuer's
1675 certificate does not contain a subjectKeyIdentifier field.
1676 In that case the subjectKeyIdentifier is computed by pluto as the
1677 160 bit SHA-1 hash of the issuer's public key in compliance
1678 with section 4.2.1.2 of RFC 3280.
1680 - Fixed a bug introduced by strongswan-2.5.1 which eliminated
1681 not only multiple Quick Modes of a given connection but also
1682 multiple connections between two security gateways.
1688 - Under the native IPsec of the Linux 2.6 kernel, a %trap eroute
1689 installed either by setting auto=route in ipsec.conf or by
1690 a connection put into hold, generates an XFRM_AQUIRE event
1691 for each packet that wants to use the not-yet exisiting
1692 tunnel. Up to now each XFRM_AQUIRE event led to an entry in
1693 the Quick Mode queue, causing multiple IPsec SA to be
1694 established in rapid succession. Starting with strongswan-2.5.1
1695 only a single IPsec SA is established per host-pair connection.
1697 - Right after loading the PKCS#11 module, all smartcard slots are
1698 searched for certificates. The result can be viewed using
1701 ipsec auto --listcards
1703 The certificate objects found in the slots are numbered
1704 starting with #1, #2, etc. This position number can be used to address
1705 certificates (leftcert=%smartcard) and keys (: PIN %smartcard)
1706 in ipsec.conf and ipsec.secrets, respectively:
1708 %smartcard (selects object #1)
1709 %smartcard#1 (selects object #1)
1710 %smartcard#3 (selects object #3)
1712 As an alternative the existing retrieval scheme can be used:
1714 %smartcard:45 (selects object with id=45)
1715 %smartcard0 (selects first object in slot 0)
1716 %smartcard4:45 (selects object in slot 4 with id=45)
1718 - Depending on the settings of CKA_SIGN and CKA_DECRYPT
1719 private key flags either C_Sign() or C_Decrypt() is used
1720 to generate a signature.
1722 - The output buffer length parameter siglen in C_Sign()
1723 is now initialized to the actual size of the output
1724 buffer prior to the function call. This fixes the
1725 CKR_BUFFER_TOO_SMALL error that could occur when using
1726 the OpenSC PKCS#11 module.
1728 - Changed the initialization of the PKCS#11 CK_MECHANISM in
1729 C_SignInit() to mech = { CKM_RSA_PKCS, NULL_PTR, 0 }.
1731 - Refactored the RSA public/private key code and transferred it
1732 from keys.c to the new pkcs1.c file as a preparatory step
1733 towards the release of the SCEP client.
1739 - The loading of a PKCS#11 smartcard library module during
1740 runtime does not require OpenSC library functions any more
1741 because the corresponding code has been integrated into
1742 smartcard.c. Also the RSAREF pkcs11 header files have been
1743 included in a newly created pluto/rsaref directory so that
1744 no external include path has to be defined any longer.
1746 - A long-awaited feature has been implemented at last:
1747 The local caching of CRLs fetched via HTTP or LDAP, activated
1748 by the parameter cachecrls=yes in the config setup section
1749 of ipsec.conf. The dynamically fetched CRLs are stored under
1750 a unique file name containing the issuer's subjectKeyID
1751 in /etc/ipsec.d/crls.
1753 - Applied a one-line patch courtesy of Michael Richardson
1754 from the Openswan project which fixes the kernel-oops
1755 in KLIPS when an snmp daemon is running on the same box.
1761 - Eliminated null length CRL distribution point strings.
1763 - Fixed a trust path evaluation bug introduced with 2.4.3
1769 - Improved the joint OCSP / CRL revocation policy.
1770 OCSP responses have precedence over CRL entries.
1772 - Introduced support of CRLv2 reason codes.
1774 - Fixed a bug with key-pad equipped readers which caused
1775 pluto to prompt for the pin via the console when the first
1776 occasion to enter the pin via the key-pad was missed.
1778 - When pluto is built with LDAP_V3 enabled, the library
1779 liblber required by newer versions of openldap is now
1786 - Added the _updown_espmark template which requires all
1787 incoming ESP traffic to be marked with a default mark
1790 - Introduced the pkcs11keepstate parameter in the config setup
1791 section of ipsec.conf. With pkcs11keepstate=yes the PKCS#11
1792 session and login states are kept as long as possible during
1793 the lifetime of pluto. This means that a PIN entry via a key
1794 pad has to be done only once.
1796 - Introduced the pkcs11module parameter in the config setup
1797 section of ipsec.conf which specifies the PKCS#11 module
1798 to be used with smart cards. Example:
1800 pkcs11module=/usr/lib/pkcs11/opensc-pkcs11.lo
1802 - Added support of smartcard readers equipped with a PIN pad.
1804 - Added patch by Jay Pfeifer which detects when netkey
1805 modules have been statically built into the Linux 2.6 kernel.
1807 - Added two patches by Herbert Xu. The first uses ip xfrm
1808 instead of setkey to flush the IPsec policy database. The
1809 second sets the optional flag in inbound IPComp SAs only.
1811 - Applied Ulrich Weber's patch which fixes an interoperability
1812 problem between native IPsec and KLIPS systems caused by
1813 setting the replay window to 32 instead of 0 for ipcomp.
1819 - Fixed a bug which caused an unwanted Mode Config request
1820 to be initiated in the case where "right" was used to denote
1821 the local side in ipsec.conf and "left" the remote side,
1822 contrary to the recommendation that "right" be remote and
1829 - updated Vendor ID to strongSwan-2.4.0
1831 - updated copyright statement to include David Buechi and
1838 - strongSwan now communicates with attached smartcards and
1839 USB crypto tokens via the standardized PKCS #11 interface.
1840 By default the OpenSC library from www.opensc.org is used
1841 but any other PKCS#11 library could be dynamically linked.
1842 strongSwan's PKCS#11 API was implemented by David Buechi
1843 and Michael Meier, both graduates of the Zurich University
1844 of Applied Sciences in Winterthur, Switzerland.
1846 - When a %trap eroute is triggered by an outgoing IP packet
1847 then the native IPsec stack of the Linux 2.6 kernel [often/
1848 always?] returns an XFRM_ACQUIRE message with an undefined
1849 protocol family field and the connection setup fails.
1850 As a workaround IPv4 (AF_INET) is now assumed.
1852 - the results of the UML test scenarios are now enhanced
1853 with block diagrams of the virtual network topology used
1854 in a particular test.
1860 - fixed IV used to decrypt informational messages.
1861 This bug was introduced with Mode Config functionality.
1863 - fixed NCP Vendor ID.
1865 - undid one of Ulrich Weber's maximum udp size patches
1866 because it caused a segmentation fault with NAT-ed
1869 - added UML scenarios wildcards and attr-cert which
1870 demonstrate the implementation of IPsec policies based
1871 on wildcard parameters contained in Distinguished Names and
1872 on X.509 attribute certificates, respectively.
1878 - Added basic Mode Config functionality
1880 - Added Mathieu Lafon's patch which upgrades the status of
1881 the NAT-Traversal implementation to RFC 3947.
1883 - The _startklips script now also loads the xfrm4_tunnel
1886 - Added Ulrich Weber's netlink replay window size and
1887 maximum udp size patches.
1889 - UML testing now uses the Linux 2.6.10 UML kernel by default.
1895 - Eric Marchionni and Patrik Rayo, both recent graduates from
1896 the Zuercher Hochschule Winterthur in Switzerland, created a
1897 User-Mode-Linux test setup for strongSwan. For more details
1898 please read the INSTALL and README documents in the testing
1901 - Full support of group attributes based on X.509 attribute
1902 certificates. Attribute certificates can be generated
1903 using the openac facility. For more details see
1907 The group attributes can be used in connection definitions
1908 in order to give IPsec access to specific user groups.
1909 This is done with the new parameter left|rightgroups as in
1911 rightgroups="Research, Sales"
1913 giving access to users possessing the group attributes
1914 Research or Sales, only.
1916 - In Quick Mode clients with subnet mask /32 are now
1917 coded as IP_V4_ADDRESS or IP_V6_ADDRESS. This should
1918 fix rekeying problems with the SafeNet/SoftRemote and NCP
1919 Secure Entry Clients.
1921 - Changed the defaults of the ikelifetime and keylife parameters
1922 to 3h and 1h, respectively. The maximum allowable values are
1923 now both set to 24 h.
1925 - Suppressed notification wars between two IPsec peers that
1926 could e.g. be triggered by incorrect ISAKMP encryption.
1928 - Public RSA keys can now have identical IDs if either the
1929 issuing CA or the serial number is different. The serial
1930 number of a certificate is now shown by the command
1932 ipsec auto --listpubkeys
1938 - Added Tuomo Soini's sourceip feature which allows a strongSwan
1939 roadwarrior to use a fixed Virtual IP (see README section 2.6)
1940 and reduces the well-known four tunnel case on VPN gateways to
1941 a single tunnel definition (see README section 2.4).
1943 - Fixed a bug occurring with NAT-Traversal enabled when the responder
1944 suddenly turns initiator and the initiator cannot find a matching
1945 connection because of the floated IKE port 4500.
1947 - Removed misleading ipsec verify command from barf.
1949 - Running under the native IP stack, ipsec --version now shows
1950 the Linux kernel version (courtesy to the Openswan project).
1956 - Introduced the ipsec auto --listalgs monitoring command which lists
1957 all currently registered IKE and ESP algorithms.
1959 - Fixed a bug in the ESP algorithm selection occurring when the strict flag
1960 is set and the first proposed transform does not match.
1962 - Fixed another deadlock in the use of the lock_certs_and_keys() mutex,
1963 occurring when a smartcard is present.
1965 - Prevented that a superseded Phase1 state can trigger a DPD_TIMEOUT event.
1967 - Fixed the printing of the notification names (null)
1969 - Applied another of Herbert Xu's Netlink patches.
1975 - Support of Dead Peer Detection. The connection parameter
1977 dpdaction=clear|hold
1979 activates DPD for the given connection.
1981 - The default Opportunistic Encryption (OE) policy groups are not
1982 automatically included anymore. Those wishing to activate OE can include
1983 the policy group with the following statement in ipsec.conf:
1985 include /etc/ipsec.d/examples/oe.conf
1987 The default for [right|left]rsasigkey is now set to %cert.
1989 - strongSwan now has a Vendor ID of its own which can be activated
1990 using the compile option VENDORID
1992 - Applied Herbert Xu's patch which sets the compression algorithm correctly.
1994 - Applied Herbert Xu's patch fixing an ESPINUDP problem
1996 - Applied Herbert Xu's patch setting source/destination port numbers.
1998 - Reapplied one of Herbert Xu's NAT-Traversal patches which got
1999 lost during the migration from SuperFreeS/WAN.
2001 - Fixed a deadlock in the use of the lock_certs_and_keys() mutex.
2003 - Fixed the unsharing of alg parameters when instantiating group
2010 - Thomas Walpuski made me aware of a potential DoS attack via
2011 a PKCS#7-wrapped certificate bundle which could overwrite valid CA
2012 certificates in Pluto's authority certificate store. This vulnerability
2013 was fixed by establishing trust in CA candidate certificates up to a
2014 trusted root CA prior to insertion into Pluto's chained list.
2016 - replaced the --assign option by the -v option in the auto awk script
2017 in order to make it run with mawk under debian/woody.
2023 - Split of the status information between ipsec auto --status (concise)
2024 and ipsec auto --statusall (verbose). Both commands can be used with
2025 an optional connection selector:
2027 ipsec auto --status[all] <connection_name>
2029 - Added the description of X.509 related features to the ipsec_auto(8)
2032 - Hardened the ASN.1 parser in debug mode, especially the printing
2033 of malformed distinguished names.
2035 - The size of an RSA public key received in a certificate is now restricted to
2037 512 bits <= modulus length <= 8192 bits.
2039 - Fixed the debug mode enumeration.
2045 - Fixed another PKCS#7 vulnerability which could lead to an
2046 endless loop while following the X.509 trust chain.
2052 - Fixed the PKCS#7 vulnerability discovered by Thomas Walpuski
2053 that accepted end certificates having identical issuer and subject
2054 distinguished names in a multi-tier X.509 trust chain.
2060 - Removed all remaining references to ipsec_netlink.h in KLIPS.
2066 - The new "ca" section allows to define the following parameters:
2069 cacert=koolCA.pem # cacert of kool CA
2070 ocspuri=http://ocsp.kool.net:8001 # ocsp server
2071 ldapserver=ldap.kool.net # default ldap server
2072 crluri=http://www.kool.net/kool.crl # crl distribution point
2073 crluri2="ldap:///O=Kool, C= .." # crl distribution point #2
2074 auto=add # add, ignore
2076 The ca definitions can be monitored via the command
2078 ipsec auto --listcainfos
2080 - Fixed cosmetic corruption of /proc filesystem by integrating
2081 D. Hugh Redelmeier's freeswan-2.06 kernel fixes.
2087 - Added support for the 818043 NAT-Traversal update of Microsoft's
2088 Windows 2000/XP IPsec client which sends an ID_FQDN during Quick Mode.
2090 - A symbolic link to libcrypto is now added in the kernel sources
2091 during kernel compilation
2093 - Fixed a couple of 64 bit issues (mostly casts to int).
2094 Thanks to Ken Bantoft who checked my sources on a 64 bit platform.
2096 - Replaced s[n]printf() statements in the kernel by ipsec_snprintf().
2097 Credits go to D. Hugh Redelmeier, Michael Richardson, and Sam Sgro
2098 of the FreeS/WAN team who solved this problem with the 2.4.25 kernel.
2104 - an empty ASN.1 SEQUENCE OF or SET OF object (e.g. a subjectAltName
2105 certificate extension which contains no generalName item) can cause
2106 a pluto crash. This bug has been fixed. Additionally the ASN.1 parser has
2107 been hardened to make it more robust against malformed ASN.1 objects.
2109 - applied Herbert Xu's NAT-T patches which fixes NAT-T under the native
2110 Linux 2.6 IPsec stack.
2116 - based on freeswan-2.04, x509-1.5.3, nat-0.6c, alg-0.8.1rc12
projects / strongswan.git / blob