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* support gre key in ikev1tterasTimo Teräs2017-11-207-37/+109
| | | | | | | | | | | | | | this implements gre key negotiation in ikev1 similarly to the ipsec-tools patch in alpine. the from/to port pair is internally used as gre key for gre protocol traffic selectors. since from/to pairs 0/0xffff and 0xffff/0 have special meaning, the gre keys 0xffff and 0xffff0000 will not work. this is not standard compliant, and should probably not be upstreamed or used widely, but it is applied for interoperability with alpine racoon for the time being.
* vici: add (deprecated) async parameterTimo Teräs2017-11-201-2/+3
| | | | | | | This is obsoleted by the new "timeout=-1" option that achieves the same. Only for compatibility with old versions of quagga-nhrp. Signed-off-by: Timo Teräs <timo.teras@iki.fi>
* vici: add support for individual sa state changesTimo Teräs2017-11-201-0/+105
| | | | | | Useful for monitoring and tracking full SA. Signed-off-by: Timo Teräs <timo.teras@iki.fi>
* vici: send certificates for ike-sa eventsTimo Teräs2017-11-201-7/+41
| | | | Signed-off-by: Timo Teräs <timo.teras@iki.fi>
* charon: add optional source and remote overrides for initiateTimo Teräs2017-11-209-45/+177
| | | | | | | | | | | This introduces support for specifying optional IKE SA specific source and remote address for child sa initiation. This allows to initiate wildcard connection for known address via vici. In addition this allows impler implementation of trap-any patches and is a prerequisite for dmvpn support. Signed-off-by: Timo Teräs <timo.teras@iki.fi>
* ike: Adhere to IKE_SA limit when checking out by configTobias Brunner2017-11-201-34/+37
| | | | | This prevents new SAs from getting created if we hit the global IKE_SA limit (we still allow checkout_new(), which is used for rekeying).
* ikev2: Add hash algorithm used for RSASSA-PSS signature to log messageTobias Brunner2017-11-171-11/+41
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* Fixed some typos, courtesy of codespellTobias Brunner2017-11-1510-10/+10
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* unit-tests: Rename targets for libstrongswan and kernel-netlinkThomas Egerer2017-11-091-5/+5
| | | | | | | | | libstrongswan and kernel-netlink are the only two components which do not adhere to the naming scheme used for all other tests. If the tests are run by an external application this imposes problems due to clashing names. Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
* ikev2: Use helpers to build signature auth dataTobias Brunner2017-11-081-40/+4
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* ikev2: Enumerate RSA/PSS schemes and use them if enabledTobias Brunner2017-11-081-7/+11
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* ikev2: Support signing with RSASSA-PSS via RFC 7427 signature authTobias Brunner2017-11-081-6/+21
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* ikev2: Verify RSASSA-PSS signatures via RFC 7427 signature authTobias Brunner2017-11-081-19/+34
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* keymat_v2: Pass/receive signature schemes as signature_param_t objectsTobias Brunner2017-11-082-28/+58
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* auth-cfg: Store signature schemes as signature_params_t objectsTobias Brunner2017-11-082-18/+23
| | | | | Due to circular references the hasher_from_signature_scheme() helper does not take a signature_params_t object.
* certificate: Return signature scheme and parameters from issued_by() methodTobias Brunner2017-11-081-0/+1
| | | | | This also required some include restructuring (avoid including library.h in headers) to avoid unresolvable circular dependencies.
* private-key: Add optional parameters argument to sign() methodTobias Brunner2017-11-082-3/+3
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* public-key: Add optional parameters argument to verify() methodTobias Brunner2017-11-082-2/+2
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* ikev2: Don't use SHA-1 for RFC 7427 signature authenticationTobias Brunner2017-11-081-3/+1
| | | | | | RFC 8247 demoted it to MUST NOT. References #2427.
* proposal: Remove MODP-1024 from default IKE proposalTobias Brunner2017-11-081-2/+2
| | | | | | | | RFC 8247 demoted it to SHOULD NOT. This might break connections with Windows clients unless they are configured to use a stronger group or matching weak proposals are configured explicitly on the server. References #2427.
* proposal: Remove MD5 from default IKE proposalTobias Brunner2017-11-081-2/+5
| | | | | | RFC 8247 demoted MD5 to MUST NOT. References #2427.
* proposal: Remove deprecated algorithms from default ESP and AH proposalsTobias Brunner2017-11-081-4/+0
| | | | | | | This removes algorithms that were deprecated by RFC 8221 (3DES, BF, MD5) from the default proposals for ESP and AH. References #8247.
* kernel-pfkey: Support anti-replay windows > 2kTobias Brunner2017-11-081-1/+14
| | | | | | | FreeBSD 11.1 supports a new extension to configure larger anti-replay windows, now configured as number of packets. Fixes #2461.
* kernel-pfkey: Don't include keys in SADB_UPDATE message to update IPs on FreeBSDTobias Brunner2017-11-081-0/+3
| | | | | | The FreeBSD kernel explicitly rejects messages containing keys for mature SAs. Fixes #2457.
* vici: Add 'get|reset-counters' commandsTobias Brunner2017-11-084-1/+191
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* counters: Move IKE event counter collection from stroke to a separate pluginTobias Brunner2017-11-0812-387/+856
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* systime-fix: Add timeout option to stop waiting for valid system timeTobias Brunner2017-11-081-10/+42
| | | | | A certificate check is forced once the timeout is reached even if the system time appears to be invalid.
* shunt-mananger: Make outbound FWD shunt policies optionalTobias Brunner2017-11-021-6/+15
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* ike: Do not send initial contact only for UNIQUE_NEVERThomas Egerer2017-11-022-3/+1
| | | | Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
* vici: Make setting mark on inbound SA configurableTobias Brunner2017-11-021-7/+19
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* child-cfg: Optionally set mark on inbound SATobias Brunner2017-11-022-2/+20
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* eap-radius: Optionally send Class attributes in RADIUS accounting messagesTobias Brunner2017-11-023-21/+83
| | | | | | | If enabled, add the RADIUS Class attributes received in Access-Accept messages to RADIUS accounting messages as suggested by RFC 2865 section 5.25. Fixes #2451.
* ikev2: Abort make-before-break reauth if we don't find children to recreateTobias Brunner2017-11-021-1/+19
| | | | | | | We do something similar in reestablish() for break-before-make reauth. If we don't abort we'd be sending an IKE_AUTH without any TS payloads. References #2430.
* libcharon: Added Cisco FlexVPN Supported VIDAndreas Steffen2017-10-271-0/+2
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* kernel-netlink: Add strings for newer XFRM attribute typesTobias Brunner2017-10-061-1/+6
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* kernel-pfroute: Delay call to if_indextoname(3) when handling RTM_IFINFOTobias Brunner2017-09-261-0/+5
| | | | | | | It seems that there is a race, at least in 10.13, that lets if_indextoname() fail for the new TUN device. So we delay the call a bit, which seems to "fix" the issue. It's strange anyway that the previous delay was only applied when an iface entry was already found.
* controller: Consider any IKE_SA destruction as success when terminatingTobias Brunner2017-09-251-4/+1
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* dhcp: Fix warning regarding unaligned pointer value due to packed structTobias Brunner2017-09-181-1/+1
| | | | We don't need to access this as uint32_t so just cast it to a char*.
* dhcp: Don't use signed char for DHCP optionsTobias Brunner2017-09-181-1/+1
| | | | | | The value of DHCP_OPTEND is 255. When it is assigned this result in a sign change as the positive int constant is cast to a signed char and -1 results. Clang 4.0 complains about this.
* child-create: Don't consider a DH group mismatch as failure as responderTobias Brunner2017-09-181-1/+0
| | | | | | | This causes problems e.g. on Android where we handle the alert (and reestablish the IKE_SA) even though it usually is no problem if the peer retries with the requested group. We don't consider it as a failure on the initiator either.
* child-delete: Only let SAs expire naturally if they not already didTobias Brunner2017-09-151-1/+1
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* ike: Reset local SPI if retrying to connect in state IKE_CONNECTINGTobias Brunner2017-09-043-11/+19
| | | | | | | | | | | | | | In case we send retransmits for an IKE_SA_INIT where we propose a DH group the responder will reject we might later receive delayed responses that either contain INVALID_KE_PAYLOAD notifies with the group we already use or, if we retransmitted an IKE_SA_INIT with the requested group but then had to restart again, a KE payload with a group different from the one we proposed. So far we didn't change the initiator SPI when restarting the connection, i.e. these delayed responses were processed and might have caused fatal errors due to a failed DH negotiation or because of the internal retry counter in the ike-init task. Changing the initiator SPI avoids that as we won't process the delayed responses anymore that caused this confusion.
* ike-sa-manager: Add method to change the initiator SPI of an IKE_SATobias Brunner2017-09-042-4/+99
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* ike-init: Fail if DH group in KE payload does not match proposed groupTobias Brunner2017-09-041-1/+5
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* ike-cfg: Fix memory leak when checking for configured addressTobias Brunner2017-08-291-0/+1
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* kernel-netlink: Set usable state whenever an interface appearsTobias Brunner2017-08-231-2/+2
| | | | | | | | If an interface is renamed we already have an entry (based on the ifindex) allocated but previously only set the usable state once based on the original name. Fixes #2403.
* Fixed some typos, courtesy of codespellTobias Brunner2017-08-075-8/+8
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* kernel-netlink: Wipe buffer used to read Netlink messagesTobias Brunner2017-08-071-2/+12
| | | | | | | | | When querying SAs the keys will end up in this buffer (the allocated messages that are returned are already wiped). The kernel also returns XFRM_MSG_NEWSA as response to XFRM_MSG_ALLOCSPI but we can't distinguish this here as we only see the response. References #2388.
* child-sa: Allow requesting different unique marks for in/outEyal Birger2017-08-071-6/+23
| | | | | | | | | | | | | | | | | | | | When requiring unique flags for CHILD_SAs, allow the configuration to request different marks for each direction by using the %unique-dir keyword. This is useful when different marks are desired for each direction but the number of peers is not predefined. An example use case is when implementing a site-to-site route-based VPN without VTI devices. A use of 0.0.0.0/0 - 0.0.0.0/0 traffic selectors with identical in/out marks results in outbound traffic being wrongfully matched against the 'fwd' policy - for which the underlay 'template' does not match - and dropped. Using different marks for each direction avoids this issue as the 'fwd' policy uses the 'in' mark will not match outbound traffic. Closes strongswan/strongswan#78.
* trap-manager: Don't require that remote is resolvable during installationTobias Brunner2017-08-071-10/+49
| | | | | | | | Initiation might later fail, of course, but we don't really require an IP address when installing, that is, unless the remote traffic selector is dynamic. As that would result in installing a 0.0.0.0/0 remote TS which is not ideal when a single IP is expected as remote.
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