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* kernel-netlink: Don't set replay window for outbound SAsTobias Brunner2016-06-171-0/+6
| | | | | It's not necessary and might waste memory. However, if ESN is used we set the window to 1 as the kernel rejects the attribute otherwise.
* kernel-pfkey: Only set the replay window for inbound SAsTobias Brunner2016-06-171-3/+8
| | | | | It is not necessary for outbound SAs and might waste memory when large window sizes are used.
* daemon: Don't hold settings lock while executing start/stop scriptsTobias Brunner2016-06-171-20/+43
| | | | | | | If a called script interacts with the daemon or one of its plugins another thread might have to acquire the write lock (e.g. to configure a fallback or set a value). Holding the read lock prevents that, potentially resulting in a deadlock.
* quick-mode: Fix reporting lifebytes if lifetime is configuredTobias Brunner2016-06-171-2/+2
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* load-tester: Fix load-tester on platforms where plain `char` is signedTobias Brunner2016-06-171-1/+1
| | | | | | | | fgetc() returns an int and EOF is usually -1 so when this gets casted to a char the result depends on whether `char` means `signed char` or `unsigned char` (the C standard does not specify it). If it is unsigned then its value is 0xff so the comparison with EOF will fail as that is an implicit signed int.
* configure: Check for and explicitly link against -latomicMartin Willi2016-06-141-1/+1
| | | | | Some C libraries, such as uClibc, require an explicit link for some atomic functions. Check for any libatomic, and explcily link it.
* resolve: Add refcounting for installed DNS serversTobias Brunner2016-06-101-27/+99
| | | | | | This fixes DNS server installation if make-before-break reauthentication is used as there the new SA and DNS server is installed before it then is removed again when the old IKE_SA is torn down.
* resolve: Use process abstraction when calling resolvconfTobias Brunner2016-06-101-18/+60
| | | | This allows us to capture output written to stderr/stdout.
* resolve: Make sure to clean up if calling resolvconf failedTobias Brunner2016-06-101-3/+4
| | | | | | If running resolvconf fails handle() fails release() is not called, which might leave an interface file on the system (or depending on which script called by resolvconf actually failed even the installed DNS server).
* kernel-pfroute: Return interface to reach destination from get_nexthop()Tobias Brunner2016-06-101-4/+13
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* kernel-pfkey: Install routes with OUT policiesTobias Brunner2016-06-101-31/+30
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* kernel-netlink: Install routes with OUT policiesTobias Brunner2016-06-101-25/+24
| | | | | This is the direction we actually need routes in and makes the code easier to read.
* kernel-pfkey: Don't install routes for drop policies and if protocol/ports ↵Tobias Brunner2016-06-101-3/+10
| | | | are in the selector
* kernel-netlink: Don't install routes for drop policies and if protocol/ports ↵Tobias Brunner2016-06-101-96/+106
| | | | | | | | | are in the selector We don't need them for drop policies and they might even mess with other routes we install. Routes for policies with protocol/ports in the selector will always be too broad and might conflict with other routes we install.
* kernel-pfkey: Also use interface returned by get_nexthop() for IPsec policiesTobias Brunner2016-06-101-1/+3
| | | | | An exception is if the local address is virtual, in which case we want the route to be via TUN device.
* kernel-netlink: Also use interface returned by get_nexthop() for IPsec policiesTobias Brunner2016-06-101-1/+2
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* kernel-pfkey: Use interface to next hop for shunt policiesTobias Brunner2016-06-101-2/+3
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* kernel-netlink: Use interface to next hop for shunt policiesTobias Brunner2016-06-101-10/+13
| | | | | | Using the source address to determine the interface is not correct for net-to-net shunts between two interfaces on which the host has IP addresses for each subnet.
* kernel-netlink: Return outbound interface in get_nexthop()Tobias Brunner2016-06-101-5/+43
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* kernel-net: Let get_nexthop() return an optional interface nameTobias Brunner2016-06-1010-21/+42
| | | | | The returned name should be the interface over which the destination address/net is reachable.
* kernel-interface: Always set `vip` if get_address_by_ts() returns successfullyTobias Brunner2016-06-101-0/+4
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* kernel-netlink: Let only a single thread work on a specific policyTobias Brunner2016-06-101-25/+69
| | | | | | | | | | | | | Other threads are free to add/update/delete other policies. This tries to prevent race conditions caused by releasing the mutex while sending messages to the kernel. For instance, if break-before-make reauthentication is used and one thread on the responder is delayed in deleting the policies that another thread is concurrently adding for the new SA. This could have resulted in no policies being installed eventually. Fixes #1400.
* kernel-netlink: Add priority and refcount to policy logTobias Brunner2016-06-101-9/+30
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* kernel-netlink: Consistently print mark in log messages only if setTobias Brunner2016-06-101-108/+82
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* kernel-netlink: Provide error information for Netlink socketsTobias Brunner2016-06-103-19/+25
| | | | #1467.
* kernel-netlink: Allow definition of a custom priority calculation functionTobias Brunner2016-06-102-3/+18
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* kernel-pfkey: Use ipsec_sa_cfg_equals()Tobias Brunner2016-06-081-1/+1
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* kernel-netlink: Use ipsec_sa_cfg_equals() and compare marks properlyTobias Brunner2016-06-081-2/+3
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* eap-simaka-pseudonym: Properly store mappingsTobias Brunner2016-06-061-44/+38
| | | | | | | | | | | If a pseudonym changed a new entry was added to the table storing permanent identity objects (that are used as keys in the other table). However, the old mapping was not removed while replacing the mapping in the pseudonym table caused the old pseudonym to get destroyed. This eventually caused crashes when a new pseudonym had the same hash value as such a defunct entry and keys had to be compared. Fixes strongswan/strongswan#46.
* child-sa: Use non-static variable to store generated unique markTobias Brunner2016-06-061-1/+2
| | | | | | If two CHILD_SAs with mark=%unique are created concurrently they could otherwise end up with either the same mark or different marks in both directions.
* ike: Don't trigger message hook when fragmenting pre-generated messagesTobias Brunner2016-06-061-2/+10
| | | | | | | | | This is the case for the IKE_SA_INIT and the initial IKEv1 messages, which are pre-generated in tasks as at least parts of it are used to generate the AUTH payload. The IKE_SA_INIT message will never be fragmented, but the IKEv1 messages might be, so we can't just call generate_message(). Fixes #1478.
* error-notify: Notify listeners upon IKE retransmitThomas Egerer2016-06-062-0/+6
| | | | Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
* task-manager: Add retransmit cleared alertTobias Brunner2016-06-063-0/+16
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* task-manager: Add retransmit count to retransmit send alertThomas Egerer2016-06-063-4/+7
| | | | Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
* stroke: Permanently store PINs in credential setTobias Brunner2016-06-061-12/+35
| | | | | | | This fixes authentication with tokens that require the PIN for every signature. Fixes #1369.
* controller: Use separate callbacks to track termination and initiation of SAsTobias Brunner2016-06-061-8/+58
| | | | | | | If a local authentication failure occurs in IKEv1 we delete the IKE_SA, which we don't want the controller to detect as success. Fixes #1449.
* ikev1: Queue INFORMATIONAL messages during XAuthTobias Brunner2016-06-061-5/+12
| | | | | | | | | | Some peers send an INITIAL_CONTACT notify after they received our XAuth username. The XAuth task waiting for the third XAuth message handles this incorrectly and closes the IKE_SA as no configuration payloads are contained in the message. We queue the INFORMATIONAL until the XAuth exchange is complete to avoid this issue. Fixes #1434.
* ikev2: Handle INITIAL_CONTACT notifies also when peer is authenticated with EAPTobias Brunner2016-06-061-16/+5
| | | | Fixes #1380.
* p-cscf: Remove libhydra reference in MakefileTobias Brunner2016-05-271-1/+0
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* vici: Put source distribution in the dist dir in the build directoryTobias Brunner2016-05-111-1/+3
| | | | This fixes the out-of-tree build.
* vici: Add target to build a source package and universal wheel of the Python ↵Tobias Brunner2016-05-111-0/+6
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* vici: Add README.rst to be used as description on PyPITobias Brunner2016-05-114-8/+28
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* vici: Replace dr with dev in version numbers for the Python eggTobias Brunner2016-05-101-5/+5
| | | | | | The versioning scheme used by Python (PEP 440) supports the rcN suffix but development releases have to be named devN, not drN, which are not supported and considered legacy versions.
* vici: Update setup.pyTobias Brunner2016-05-101-4/+5
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* vici: Ensure we read exactly the specified amount of bytes from the socket ↵Tobias Brunner2016-05-101-2/+9
| | | | | | | in Python recv() will return less bytes than specified (as that's the buffer size) if not as many are ready to be read from the socket.
* child-sa: Install "outbound" FWD policy with lower priorityTobias Brunner2016-05-061-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This provides a fix if symmetrically overlapping policies are installed as e.g. the case in the ikev2/ip-two-pools-db scenario: carol 10.3.0.1/32 ----- 10.3.0.0/16, 10.4.0.0/16 moon alice 10.4.0.1/32 ----- 10.3.0.0/16, 10.4.0.0/16 moon Among others, the following FWD policies are installed on moon: src 10.3.0.1/32 dst 10.4.0.0/16 ... tmpl ... src 10.4.0.0/16 dst 10.3.0.1/32 ... src 10.4.0.1/32 dst 10.3.0.0/16 ... tmpl ... src 10.3.0.0/16 dst 10.4.0.1/32 ... Because the network prefixes are the same for all of these they all have the same priority. Due to that it depends on the install order which policy gets used. For instance, a packet from 10.3.0.1 to 10.4.0.1 will match the first as well as the last policy. However, when handling the inbound packet we have to use the first one as the packet will otherwise be dropped due to a template mismatch. And we can't install templates with the "outbound" FWD policies as that would prevent using different IPsec modes or e.g. IPComp on only one of multiple SAs. Instead we install the "outbound" FWD policies with a lower priority than the "inbound" FWD policies so the latter are preferred. But we use a higher priority than default drop policies would use (in case they'd be defined with the same subnets).
* kernel-netlink: Check proper watcher state in parallel modeTobias Brunner2016-05-061-1/+1
| | | | | | | | | | | | | After adding the read callback the state is WATCHER_QUEUED and it is switched to WATCHER_RUNNING only later by an asynchronous job. This means that a thread that sent a Netlink message shortly after registration might see the state as WATCHER_QUEUED. If it then tries to read the response and the watcher thread is quicker to actually read the message from the socket, it could block on recv() while still holding the lock. And the asynchronous job that actually read the message and tries to queue it will block while trying to acquire the lock, so we'd end up in a deadlock. This is probably mostly a problem in the unit tests.
* trap-manager: Allow local address to be unspecifiedTobias Brunner2016-05-061-3/+1
| | | | | | | | If there is currently no route to reach the other peer we just default to left=%any. The local address is only really used to resolve leftsubnet=%dynamic anyway (and perhaps for MIPv6 proxy transport mode). Fixes #1375.
* kernel-netlink: Order routes by prefix before comparing priority/metricTobias Brunner2016-05-061-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | Metrics are basically defined to order routes with equal prefix, so ordering routes by metric first makes not much sense as that could prefer totally unspecific routes over very specific ones. For instance, the previous code did break installation of routes for passthrough policies with two routes like these in the main routing table: default via 192.168.2.1 dev eth0 proto static 192.168.2.0/24 dev eth0 proto kernel scope link src 192.168.2.10 metric 1 Because the default route has no metric set (0) it was used, instead of the more specific other one, to determine src and next hop when installing a route for a passthrough policy for 192.168.2.0/24. Therefore, the installed route in table 220 did then incorrectly redirect all local traffic to "next hop" 192.168.2.1. The same issue occurred when determining the source address while installing trap policies. Fixes 6b57790270fb ("kernel-netlink: Respect kernel routing priorities for IKE routes"). Fixes #1416.
* ikev1: Activate DELETE tasks before other tasks in state ESTABLISHEDTobias Brunner2016-05-061-7/+7
| | | | Fixes #1410.
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