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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.
* vici: Compute rekey_bytes and rekey_packets if life_bytes and life_packets ↵Andreas Steffen2015-07-201-6/+20
| | | | are defined
* ike-sa-manager: Safely access the RNG instance with an rwlockTobias Brunner2015-07-141-5/+16
| | | | | | | | | | | Threads might still be allocating SPIs (e.g. triggered by an acquire or an inbound message) while the main thread calls flush(). If there is a context switch right after such a thread successfully checked this->rng in get_spi() and the main thread destroys the RNG instance right then, that worker thread will cause a segmentation fault when it continues and attempts to call get_bytes(). Fixes #1014.
* vici: Asynchronize debug loggingMartin Willi2015-07-121-1/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The vici logger uses the listener_t.log() callback to raise vici events. When doing so, it holds the bus lock as reader while acquiring the vici socket mutex (1). If at the same time the vici socket enables a writer, that thread tries to lock the watcher mutex (2). The watcher thread uses debugging while holding the lock, i.e. acquires the bus read lock (3). (1) bus.rlock -> vici.lock! (2) vici.lock -> watcher.lock! (3) watcher.lock -> bus.rlock! This all actually would resolve just fine, as we have a shared read lock on the bus. However, under Windows we seem to have a strict writer preference when acquiring the rwlock (4). This results in blocking read locks until any pending write lock can be fulfilled, and makes the constellation deadlock. The relevant threads are: Thread (1) 6 0x71313d25 in wait_ at threading/windows/mutex.c:137 7 0x7054c8a2 in find_entry at vici_socket.c:201 8 0x7054d690 in send_ at vici_socket.c:624 9 0x7054f6c1 in send_op at vici_dispatcher.c:119 10 0x705502c1 in raise_event at vici_dispatcher.c:469 12 0x704c3878 in log_cb at bus/bus.c:332 13 0x712c7c3a in invoke_function at collections/linked_list.c:414 14 0x704c3a63 in vlog at bus/bus.c:400 15 0x704c3b36 in log_ at bus/bus.c:430 18 0x70508f1f in process_response at sa/ikev2/task_manager_v2.c:664 20 0x704f5430 in process_message at sa/ike_sa.c:1369 21 0x704e3823 in execute at processing/jobs/process_message_job.c:74 22 0x712e629f in process_job at processing/processor.c:235 Thread (2) 4 0x71313b61 in lock at threading/windows/mutex.c:66 5 0x712e81fd in add at processing/watcher.c:441 6 0x712e1ab9 in add_watcher at networking/streams/stream.c:213 7 0x712e1b4d in on_write at networking/streams/stream.c:237 8 0x7054d606 in _cb_enable_writer at vici_socket.c:609 9 0x712e5e34 in execute at processing/jobs/callback_job.c:77 10 0x712e629f in process_job at processing/processor.c:235 Thread (3) 3 0x71313f38 in read_lock at threading/windows/rwlock.c:74 4 0x704c3971 in vlog at bus/bus.c:373 5 0x704cc156 in dbg_bus at daemon.c:126 6 0x712e7bf9 in watch at processing/watcher.c:316 7 0x712e5e34 in execute at processing/jobs/callback_job.c:77 8 0x712e629f in process_job at processing/processor.c:235 Thread (4) 3 0x71313f70 in write_lock at threading/windows/rwlock.c:82 4 0x704c378b in remove_logger at bus/bus.c:290 5 0x704cb284 in listener_unregister at control/controller.c:166 6 0x713136cd in thread_cleanup_pop at threading/windows/thread.c:558 8 0x704cb94e in initiate at control/controller.c:435 9 0x70553996 in _cb_initiate at vici_control.c:187 12 0x7054d200 in _cb_process_queue at vici_socket.c:508 13 0x712e5e34 in execute at processing/jobs/callback_job.c:77 14 0x712e629f in process_job at processing/processor.c:235 To avoid such a situation, we dissolve the (1) lock sequence. It's actually never good practice to acquire shared locks during bus hooks, as it is problematic if we raise bus events while holding the lock. We do so by raising vici events for log message asynchronously, but of curse must keep log order as is using a synchronized queue.
* unit-tests: Add a IKEv2 message encryption test caseMartin Willi2015-07-123-0/+140
| | | | | It uses the ChaCha20Poly1305 test vectors from draft-ietf-ipsecme-chacha20-poly1305-06.
* unit-tests: Forward variable argument list in TEST_SUITE_DEPENDMartin Willi2015-07-121-2/+2
| | | | | For some plugin features, such as crypters or AEADs, we have some additional feature arguments, such as the key size.
* unit-tests: Load libstrongswan plugins in libcharon testsMartin Willi2015-07-122-0/+16
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* ikev2: Derive additional 4 byte CHILD_SA nonce keymat for ChaCha20-Poly1305Martin Willi2015-06-291-0/+1
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* ikev2: Use four byte salt for ChaCha20-Poly1305 AEADMartin Willi2015-06-291-0/+1
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* osx-attr: Optionally replace existing DNS server instead of appending themMartin Willi2015-06-181-3/+27
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* ikev2: Enforce remote authentication config before proceeding with own ↵Martin Willi2015-06-051-0/+44
| | | | | | | | | | | | | | | | | | | | | | | | authentication Previously the constraints in the authentication configuration of an initiator were enforced only after all authentication rounds were complete. This posed a problem if an initiator used EAP or PSK authentication while the responder was authenticated with a certificate and if a rogue server was able to authenticate itself with a valid certificate issued by any CA the initiator trusted. Because any constraints for the responder's identity (rightid) or other aspects of the authentication (e.g. rightca) the initiator had were not enforced until the initiator itself finished its authentication such a rogue responder was able to acquire usernames and password hashes from the client. And if a client supported EAP-GTC it was even possible to trick it into sending plaintext passwords. This patch enforces the configured constraints right after the responder's authentication successfully finished for each round and before the initiator starts with its own authentication. Fixes CVE-2015-4171.
* child-sa: Use any fixed reqid configured on the CHILD_SA configMartin Willi2015-06-051-2/+2
| | | | | | | Global reqid allocation (94eb09ac) broke fixed reqid allocation. Resupport them by bypassing allocation in the kernel if a fixed reqid has been configured. Fixes #976.
* message: Log message if unknown/disallowed payload receivedTobias Brunner2015-06-011-3/+10
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* message: Log original message type of unknown payloadsTobias Brunner2015-06-011-0/+13
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* unknown-payload: Use a new private payload type and make original type availableTobias Brunner2015-06-016-10/+35
| | | | | | | | | This fixes a DoS and potential remote code execution vulnerability that was caused because the original payload type that was returned previously was used to cast such payload objects to payloads of the indicated type (e.g. when logging notify payloads with a payload type for the wrong IKE version). Fixes CVE-2015-3991.
* ikev2: Include fragment number into message ID passed to IV genMartin Willi2015-06-011-0/+5
| | | | | | When using a cipher with sequential IVs, we never must pass an identical IV to the IV generator. To avoid it when using IKEv2 fragmentation, use the lower bits of the 64-bit message ID as the fragment number.
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