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* ikev2: Compare initiator flag again, partially reverts 17ec1c74deTobias Brunner2015-08-202-1/+5
| | | | | We should ignore messages that have the flag set incorrectly. This restores RFC compliance which was broken since the mentioned commit.
* ikev2: Drop IKE_SA_INIT messages that don't have the initiator flag setTobias Brunner2015-08-201-1/+3
| | | | | | | | | | | While this doesn't really create any problems it is not 100% correct to accept such messages because, of course, the sender of an IKE_SA_INIT request is always the original initiator of an IKE_SA. We currently don't check the flag later, so we wouldn't notice if the peer doesn't set it in later messages (ike_sa_id_t.equals doesn't compare it anymore since we added support for IKEv1, in particular since 17ec1c74de).
* ikev1: Pass current auth-cfg when looking for key to determine auth methodTobias Brunner2015-08-191-1/+1
| | | | | | | | | If multiple certificates use the same subjects we might choose the wrong one otherwise. This way we use the one referenced with leftcert and stored in the auth-cfg and we actually do the same thing later in the pubkey authenticator. Fixes #1077.
* ikev2: Store outer EAP method used to authenticate remote peer in auth-cfgTobias Brunner2015-08-191-0/+9
| | | | | | | This allows symmetric configuration of EAP methods (i.e. the same value in leftauth and rightauth) when mutual EAP-only authentication is used. Previously the client had to configure rightauth=eap or rightauth=any, which prevented it from using this same config as responder.
* ike: Use the original port when remote resolves to %anyTobias Brunner2015-08-191-1/+3
| | | | | | When reestablishing the IKE_SA we should still use the original port when right resolves to %any as some implementations might not like initial IKE messages on port 4500 (especially for IKEv1).
* trap-manager: Enable auto=route with right=%any for transport mode connectionsTobias Brunner2015-08-191-27/+118
| | | | Fixes #196.
* sql: Also do a reversed ID matchTobias Brunner2015-08-171-2/+9
| | | | | | | This is required for the case where IDr is not sent (i.e. is %any). The backend manager does the same. Fixes #1044.
* ha: Recreate the control FIFO if the file exists but is not a FIFOTobias Brunner2015-08-171-13/+68
| | | | | | This may happen if something like `echo ... > /path/to/fifo` is used before the plugin was able to create the FIFO. In that case we'd end up in a loop always reading the same values from the static file.
* ikev1: Assume a default key length of 128-bit for AES-CBCTobias Brunner2015-08-171-0/+11
| | | | | | | | | | Some implementations don't send a Key Length attribute for AES-128. This was allowed for IKE in early drafts of RFC 3602, however, some implementations also seem to do it for ESP, where it never was allowed. And the final version of RFC 3602 demands a Key Length attribute for both phases so they shouldn't do it anymore anyway. Fixes #1064.
* vici: Add option to disable policy installation for CHILD_SAsTobias Brunner2015-08-171-1/+6
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* child-sa: Fix refcounting of allocated reqidsTobias Brunner2015-08-171-3/+12
| | | | | | | | | | | During a rekeying we want to reuse the current reqid, but if the new SA does not allocate it via kernel-interface the state there will disappear when the old SA is destroyed after the rekeying. When the IKE_SA is later reauthenticated with make-before-break reauthentication the new CHILD_SAs there will get new reqids as no existing state is found in the kernel-interface, breaking policy installation in the kernel. Fixes: a49393954f31 ("child-sa: Use any fixed reqid configured on the CHILD_SA config")
* plugin-feature: Add vendor specific EAP method registration macrosTobias Brunner2015-08-171-1/+2
| | | | | | | | | | | Vendor specific EAP methods may be registered with: PLUGIN_CALLBACK(eap_method_register, <constructor>), PLUGIN_PROVIDE(EAP_SERVER_VENDOR, <type>, <vendor>), Same for client implementations via EAP_PEER_VENDOR. References #969.
* eap-radius: Use Framed-IPv6-Address attributes to send IPv6 VIPs in ↵Tobias Brunner2015-08-171-4/+2
| | | | | | | | | accounting messages This attribute is more appropriate for single IPv6 virtual IPs than the Framed-IPv6-Prefix attribute. Fixes #1001.
* eap-radius: Add support for some basic IPv6-specific RADIUS attributesTobias Brunner2015-08-171-1/+10
| | | | | | These are defined in RFC 6911. Fixes #1001.
* vici: Add listen methods to receive arbitrary events in Python libraryTobias Brunner2015-08-171-0/+34
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* vici: Move event (un-)registration to a helper method in Python libraryTobias Brunner2015-08-173-49/+60
| | | | | Also make sure events are unregistered in case of exceptions in streamed_request().
* vici: Add ike/child-rekey eventsTobias Brunner2015-08-172-0/+108
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* vici: Document the ike/child-updown eventsTobias Brunner2015-08-171-0/+23
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* vici: Don't include a child-sas section in ike-updown eventTobias Brunner2015-08-171-2/+0
| | | | | | This makes it clearer that only the data concerning the IKE_SA is transmitted (there could be CHILD_SAs e.g. during IKEv1 reauthentication).
* vici: Explicitly notify listeners of the type of ike/child-updown eventTobias Brunner2015-08-171-0/+11
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* Fixed AR identities in mutual TNC measurements caseAndreas Steffen2015-08-151-0/+4
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* load-tester: Include string.h for strcmp() on some platformsTobias Brunner2015-08-131-0/+1
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* Initialize variables that some compilers seem to warn aboutTobias Brunner2015-08-132-2/+2
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* Fixed some typosTobias Brunner2015-08-132-5/+5
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* whitelist: Use hash() method so DNs with different string types matchTobias Brunner2015-08-061-1/+1
| | | | | | | | | | strongSwan uses PrintableString when encoding DNs from strings (if the character set permits it, otherwise T61String is currently used) but certificates might be encoded with UTF8String even for simple ASCII strings. By ignoring this string type when hashing RDNs we make sure the same hash results in this case as long as the actual string values are the same. Fixes #991.
* updown: Pass virtual IPs assigned to a peer to the updown scriptTobias Brunner2015-08-061-7/+11
| | | | | | Previously only received virtual IPs were available. References #1008.
* eap-radius: Don't send RADIUS Accounting Start messages twiceTobias Brunner2015-08-061-0/+5
| | | | | | | | If a client does Mode Config during reauthentication the assign_vips() event might be triggered twice, we should not send another Start message in that case. Fixes #937.
* eap-radius: Change trigger for Accounting Start messages for IKEv1Tobias Brunner2015-08-061-5/+12
| | | | | | | | | | | | | | | | | | | | | Some clients won't do Mode Config or XAuth during reauthentication. Because Start messages previously were triggered by TRANSACTION exchanges none were sent for new SAs of such clients, while Stop messages were still sent for the old SAs when they were destroyed. This resulted in an incorrect state on the RADIUS server. Since 31be582399 the assign_vips() event is also triggered during reauthentication if the client does not do a Mode Config exchange. So instead of waiting for a TRANSACTION exchange we trigger the Start message when a virtual IP is assigned to a client. With this the charon.plugins.eap-radius.accounting_requires_vip option would not have any effect for IKEv1 anymore. However, it previously also only worked if the client did an XAuth exchange, which is probably rarely used without virtual IPs, so this might not be much of a regression. Fixes #937.
* ha: Properly initialize algo variables when installing CHILD_SAsTobias Brunner2015-08-041-1/+1
| | | | | | | | | | If AEAD algorithms are used no integrity algorithm will be received from the other HA node. But since AUTH_UNDEFINED is 1024 and not 0 this value was incorrectly added to the proposal, resulting in a failure during key derivation. The variables are now explicitly initialized to 0, as already was the case for the IKE SAs. Fixes #1051.
* ha: Sync remote address in HA_IKE_ADD, tooThomas Egerer2015-08-042-0/+11
| | | | | | | | | | | | When the IKE_SA is synced without the remote address, after a reauthentication charon is not able to find it in its connected_peers table since the destination host will be %any (it's missing in the message, hence the default from the newly created ike_sa_t -- %any -- will be used). By adding the value to the HA_IKE_ADD message, we should be able to solve this problem. Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
* jobs: Don't execute rekey CHILD_SA job on passive IKE_SAsThomas Egerer2015-08-041-1/+4
| | | | Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
* ike: Disable NAT keepalives in state PASSIVEThomas Egerer2015-08-041-3/+12
| | | | Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
* ha: Use the same init values for jhash() as Linux 4.1Tobias Brunner2015-07-311-2/+19
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* sql: Fix memory leak in SQL loggerTobias Brunner2015-07-281-0/+1
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* ike: Fix memory leak if remote address is keptTobias Brunner2015-07-271-0/+4
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* ike-rekey: Fix cleanup() callTobias Brunner2015-07-271-2/+2
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* ike-rekey: Reset IKE_SA on bus before sending CREATE_CHILD_SA responseTobias Brunner2015-07-271-1/+2
| | | | | Even when there is no error the CREATE_CHILD_SA response should be sent in the context of the existing IKE_SA.
* ike-rekey: Reset IKE_SA on the bus after destroying new IKE_SATobias Brunner2015-07-271-16/+15
| | | | | | | | | | | | | | | The destroy() method sets the IKE_SA on the bus to NULL, we reset it to the current IKE_SA so any events and log messages that follow happen in the correct context. A practical example where this is problematic is a DH group mismatch, which causes the first CREATE_CHILD_SA exchange to fail. Because the SA was not reset previously, the message() hook for the CREATE_CHILD_SA response, for instance, was triggered outside the context of an IKE_SA, that is, the ike_sa parameter was NULL, which is definitely not expected by several plugins. Fixes #862.
* daemon: Flush shunts before unloading pluginsTobias Brunner2015-07-271-0/+4
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* shunt-manager: Add flush() method to properly uninstall shuntsTobias Brunner2015-07-272-4/+46
| | | | | This will allow us to uninstall shunts before unloading the kernel-interface plugins.
* shunt-manager: Remove stored entries if installation failsTobias Brunner2015-07-271-2/+11
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* shunt-manager: Add a lock to safely access the list of shunt policiesTobias Brunner2015-07-271-3/+17
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* trap-manager: Resolve race conditions between flush() and install()Tobias Brunner2015-07-271-0/+31
| | | | | | | | | | | | | When flush() is called there might be threads in install() waiting for trap policies to get installed (without holding the lock). We have to wait until they updated the entries with the respective CHILD_SAs before destroying the list. We also have to prevent further trap policy installations (and wait until threads in install() are really finished), otherwise we might end up destroying CHILD_SA objects after the kernel interface implementations have already been unloaded (avoiding this is the whole point of calling flush() before unloading the plugins).
* trap-manager: Changed how acquires we acted on are trackedTobias Brunner2015-07-271-36/+86
| | | | | | | | | This fixes potential race conditions in case complete() or flush() is executed before or concurrently with a thread that handles an acquire. It will also simplify tracking multiple acquires created for the same trap policy in the future. Also fixes the behavior in some error situations.
* trap-manager: Properly check-in IKE_SA if initiating failsTobias Brunner2015-07-271-2/+2
| | | | | | | | | This basically reverts f4e822c1b422 ("trap-manager: don't check-in nonexisting IKE_SA if acquire fails"). As checkout_by_config() could return an already existing and established IKE_SA we have to properly destroy it, for instance, in case other threads are waiting to check it out. checkin_and_destroy() should handle the case of a new SA properly (it produces a log message on level 1, though).
* ike: Fall back to the current remote IP if it resolves to %anyTobias Brunner2015-07-271-1/+6
| | | | | | | | | In some situations it might be valid for a host that configures right=%any to reestablish or reauthenticate an IKE_SA. Using %any would immediately abort the initiation causing the new SA to fail (which might already have the existing CHILD_SAs assigned). Fixes #1027.
* ike: Use address family of local address when resolving remote hostTobias Brunner2015-07-271-1/+14
| | | | | | | If static local addresses are configured we should use their address family as a hint when resolving the remote address. We don't do this if %any is configured as this might break existing configurations (%any4 and %any6 are however used as hint).
* ike-cfg: Add unit tests for ike_cfg_get_family() helperTobias Brunner2015-07-273-0/+120
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* ike-cfg: Add helper function to determine address family of IP addressesTobias Brunner2015-07-272-1/+59
| | | | | All configured static addresses (hostnames, ranges or subnets are not considered) must be of the same family, otherwise AF_UNSPEC is returned.
* vici: Certification Authority support added.Andreas Steffen2015-07-219-11/+937
| | | | | | CDP and OCSP URIs for a one or multiple certification authorities can be added via the VICI interface. swanctl allows to read definitions from a new authorities section.
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