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Tobias Brunner, 01.04.2013 14:34
strongswan.conf¶
Please note: This page documents the configuration options of the most current release. Therefore, you should always consult the strongswan.conf(5) man page that comes with the release you are using to confirm which options are actually available.
Overview¶
While the ipsec.conf configuration file is well suited to define IPsec related configuration parameters, it is not useful for other strongSwan applications to read options from this file. The file is hard to parse and only ipsec starter is capable of doing so. As the number of components of the strongSwan project is continually growing, we needed a more flexible configuration file that is easy to extend and can be used by all components. The new configuration format consists of hierarchical sections and a list of key/value pairs in each section. Starting with the strongSwan 4.2.1 release, a default strongswan.conf file is installed in your sysconfdir, e.g. /etc/strongswan.conf.
Syntax¶
Each section has a name, followed by C-Style curly brackets defining the sections body. Each section body contains a set of subsections and key/value pairs:
settings := (section|keyvalue)*
section := name { settings }
keyvalue := key = value\n
Values must be terminated by a newline. Comments are possible using the #-character, but be careful: The parser implementation is currently limited and does not like braces in comments. Section names and keys may contain any printable character except:
. { } # \n \t space
An example might look like this:
a = b
section-one {
somevalue = asdf
subsection {
othervalue = xxx
}
# yei, a comment
yetanother = zz
}
section-two {
x = 12
}
Indentation is optional, you may use tabs or spaces.
Including files¶
Version 4.5.1 introduced the include statement which allows to include other files into strongswan.conf, e.g.
include /some/path/*.conf
If the file name is not an absolute path, it is considered to be relative to the directory of the file containing the
include statement. The file name may include shell wildcards. Also, such inclusions can be nested.
Sections loaded from the included files extend previously loaded sections; already existing values are replaced.
It is important to note that settings are added relative to the section the include statement is in.
As an example, the following three files result in the same final config as the one given above:
a = b
section-one {
somevalue = before include
include include.conf
}
include other.conf
include.conf:
# settings loaded from this file are added to section-one
# the following replaces the previous value
somevalue = asdf
subsection {
othervalue = yyy
}
yetanother = zz
other.conf:
# this extends section-one and subsection
section-one {
subsection {
# this replaces the previous value
othervalue = xxx
}
}
section-two {
x = 12
}
Reading values¶
The config file is read by libstrongswan during library initialization. Values are accessed using a dot-separated section list and a key:
Accessing section-one.subsection.othervalue will return xxx.
Have a look at the settings interface (source:src/libstrongswan/settings.h) to learn about the details.
Defined keys¶
The following keys are currently defined (using dot notation).
| Key | Default | Description | ||||
| attest section | ||||||
| attest.database | Path to database with file measurement information | |||||
| attest.load | Plugins to load in ipsec attest tool | |||||
| charon section | ||||||
| charon.block_threshold | 5 | Maximum number of half-open IKE_SAs for a single peer IP | ||||
| charon.cisco_unity | no | Send Cisco Unity vendor ID payload (IKEv1 only), see unity plugin | ||||
| charon.close_ike_on_child_failure | no | Close the IKE_SA if setup of the CHILD_SA along with IKE_AUTH failed | ||||
| charon.cookie_threshold | 10 | Number of half-open IKE_SAs that activate the cookie mechanism | ||||
| charon.dns1 | DNS server 1 assigned to peer via configuration payload (CP), see attr plugin | |||||
| charon.dns2 | DNS server 2 assigned to peer via configuration payload (CP) | |||||
| charon.dos_protection | yes | Enable Denial of Service protection using cookies and aggressiveness checks | ||||
| charon.filelog | Section to define file loggers, see LoggerConfiguration | |||||
| charon.flush_auth_cfg | no | If enabled objects used during authentication (certificates, identities etc.) are released to free memory once an IKE_SA is established. Enabling this might conflict with plugins that later need access to e.g. the used certificates. | ||||
| charon.fragment_size | 512 | Maximum size (in bytes) of a sent fragment when using the proprietary IKEv1 fragmentation extension | ||||
| charon.half_open_timeout | 30 | Timeout in seconds for connecting IKE_SAs, also see IKE_SA_INIT dropping | ||||
| charon.hash_and_url | no | Enable hash and URL support | ||||
| charon.i_dont_care_about_security_and_use_aggressive_mode_psk | no | If enabled responders are allowed to use IKEv1 Aggressive Mode with pre-shared keys, which is discouraged due to security concerns (offline attacks on the openly transmitted hash of the PSK) | ||||
| charon.ignore_routing_tables | A space-separated list of routing tables to be excluded from route lookup | |||||
| charon.ikesa_limit | 0 | Maximum number of IKE_SAs that can be established at the same time before new connection attempts are blocked | ||||
| charon.ikesa_table_segments | 1 | Number of exclusively locked segments in the hash table, see IKE_SA lookup tuning | ||||
| charon.ikesa_table_size | 1 | Size of the IKE_SA hash table, see IKE_SA lookup tuning | ||||
| charon.inactivity_close_ike | no | Whether to close IKE_SA if the only CHILD_SA closed due to inactivity | ||||
| charon.init_limit_half_open | 0 | Limit new connections based on the current number of half open IKE_SAs, see IKE_SA_INIT dropping | ||||
| charon.init_limit_job_load | 0 | Limit new connections based on the number of jobs currently queued for processing, see IKE_SA_INIT dropping | ||||
| charon.install_routes | yes | Install routes into a separate routing table for established IPsec tunnels | ||||
| charon.install_virtual_ip | yes | Install virtual IP addresses | ||||
| charon.install_virtual_ip_on | The name of the interface on which virtual IP addresses should be installed. If not specified the addresses will be installed on the outbound interface. | |||||
| charon.interfaces_ignore | A comma-separated list of network interfaces that should be ignored, if charon.interfaces_use is specified this option has no effect. | |||||
| charon.interfaces_use | A comma-separated list of network interfaces that should be used by charon. All other interfaces are ignored. | |||||
| charon.keep_alive | 20s | NAT keep alive interval | ||||
| charon.load | Plugins to load in IKEv2 charon daemon, see PluginLoad | |||||
| charon.max_packet | 10000 | Maximum packet size accepted by charon | ||||
| charon.multiple_authentication | yes | Enable multiple authentication exchanges (RFC 4739) | ||||
| charon.nbns1 | WINS server 1 assigned to peer via configuration payload (CP), see attr plugin | |||||
| charon.nbns2 | WINS server 2 assigned to peer via configuration payload (CP) | |||||
| charon.port | 500 | UDP port used locally. If set to 0 a random port will be allocated. | ||||
| charon.port_nat_t | 4500 | UDP port used locally in case of NAT-T. If set to 0 a random port will be allocated. Has to be different from charon.port, otherwise a random port will be allocated. | ||||
| charon.process_route | yes | Process RTM_NEWROUTE and RTM_DELROUTE events | ||||
| charon.receive_delay | 0 | Delay in ms for receiving packets, to simulate larger RTT | ||||
| charon.receive_delay_response | yes | Delay response messages | ||||
| charon.receive_delay_request | yes | Delay request messages | ||||
| charon.receive_delay_type | 0 | Specific IKEv2 message type to delay, 0 for any | ||||
| charon.replay_window | 32 | Size of the AH/ESP replay window, in packets. | ||||
| charon.retransmit_base | 1.8 | Base to use for calculating exponential back off, see Retransmission | ||||
| charon.retransmit_timeout | 4.0 | Timeout in seconds before sending first retransmit | ||||
| charon.retransmit_tries | 5 | Number of times to retransmit a packet before giving up | ||||
| charon.retry_initiate_interval | 0 | Interval to use when retrying to initiate an IKE_SA (e.g. if DNS resolution failed), 0 to disable retries | ||||
| charon.reuse_ikesa | yes | Initiate CHILD_SA within existing IKE_SAs | ||||
| charon.routing_table | Numerical routing table to install routes to | |||||
| charon.routing_table_prio | Priority of the routing table | |||||
| charon.send_delay | 0 | Delay in ms for sending packets, to simulate larger RTT | ||||
| charon.send_delay_response | yes | Delay response messages | ||||
| charon.send_delay_request | yes | Delay request messages | ||||
| charon.send_delay_type | 0 | Specific IKEv2 message type to delay, 0 for any | ||||
| charon.send_vendor_id | no | Send strongSwan vendor ID payload | ||||
| charon.syslog | Section to define syslog loggers, see LoggerConfiguration | |||||
| charon.threads | 16 | Number of worker threads in charon | ||||
| charon plugins subsection | ||||||
| charon.plugins.android_log.loglevel | 1 | Loglevel for logging to Android specific logger | ||||
| charon.plugins.attr | Section to specify arbitrary attributes that are assigned to a peer via configuration payload, see attr plugin | |||||
| charon.plugins.certexpire.csv.cron | Cron style string specifying CSV export times, see certexpire for details. | |||||
| charon.plugins.certexpire.csv.local | strftime(3) format string for the CSV file name to export local certificates to | |||||
| charon.plugins.certexpire.csv.remote | strftime(3) format string for the CSV file name to export remote certificates to | |||||
| charon.plugins.certexpire.csv.separator | , | CSV field separator | ||||
| charon.plugins.certexpire.csv.empty_string | String to use in empty intermediate CA fields | |||||
| charon.plugins.certexpire.csv.format | %d:%m:%Y | strftime(3) format string to export expiration dates as | ||||
| charon.plugins.certexpire.csv.fixed_fields | yes | Use a fixed intermediate CA field count | ||||
| charon.plugins.coupling.file | File to store coupling list to, see certcoupling plugin for details. | |||||
| charon.plugins.coupling.hash | sha1 | Hashing algorithm to fingerprint coupled certificates | ||||
| charon.plugins.coupling.max | 1 | Maximum number of coupling entries to create | ||||
| charon.plugins.dhcp.force_server_address | no | Always use the configured server address, see DHCP plugin for details. | ||||
| charon.plugins.dhcp.identity_lease | no | Derive user-defined MAC address from hash of IKEv2 identity | ||||
| charon.plugins.dhcp.server | 255.255.255.255 | DHCP server unicast or broadcast IP address | ||||
| charon.plugins.duplicheck.enable | yes | Enable duplicheck plugin (if loaded) | ||||
| charon.plugins.eap-aka.request_identity | yes | |||||
| charon.plugins.eap-aka-3ggp2.seq_check | ||||||
| charon.plugins.eap-dynamic.preferred | The preferred EAP method(s) to be used. If it is not given the first registered method will be used initially. If a comma separated list is given the methods are tried in the given order before trying the rest of the registered methods. | |||||
| charon.plugins.eap-dynamic.prefer_user | no | If enabled the EAP methods proposed in an EAP-Nak message sent by the peer are preferred over the methods registered locally. | ||||
| charon.plugins.eap-gtc.backend | pam | XAuth backend to be used for credential verification, see EAP-GTC | ||||
| charon.plugins.eap-peap.fragment_size | 1024 | Maximum size of an EAP-PEAP packet | ||||
| charon.plugins.eap-peap.max_message_count | 32 | Maximum number of processed EAP-PEAP packets | ||||
| charon.plugins.eap-peap.include_length | no | Include length in non-fragmented EAP-PEAP packets | ||||
| charon.plugins.eap-peap.phase2_method | mschapv2 | Phase2 EAP client authentication method | ||||
| charon.plugins.eap-peap.phase2_piggyback | no | Phase2 EAP Identity request piggybacked by server onto TLS Finished message | ||||
| charon.plugins.eap-peap.phase2_tnc | no | Start phase2 EAP-TNC protocol after successful client authentication | ||||
| charon.plugins.eap-peap.request_peer_auth | no | Request peer authentication based on a client certificate | ||||
| charon.plugins.eap-radius.accounting | no | Enable EAP-RADIUS accounting | ||||
| charon.plugins.eap-radius.class_group | no | Use the class attribute sent in the RADIUS-Accept message as group membership information, see EapRadius | ||||
| charon.plugins.eap-radius.close_all_on_timeout | no | Closes all IKE_SAs if communication with the RADIUS server times out. If it is not set only the current IKE_SA is closed. | ||||
| charon.plugins.eap-radius.dae.enable | no | Enables support for the Dynamic Authorization Extension (RFC 5176) | ||||
| charon.plugins.eap-radius.dae.listen | 0.0.0.0 | Address to listen for DAE messages from the RADIUS server | ||||
| charon.plugins.eap-radius.dae.port | 3799 | Port to listen for DAE requests | ||||
| charon.plugins.eap-radius.dae.secret | Shared secret used to verify/sign DAE messages | |||||
| charon.plugins.eap-radius.eap_start | no | Send EAP-Start instead of EAP-Identity to start RADIUS conversation | ||||
| charon.plugins.eap-radius.filter_id | no | Use the filter_id attribute sent in the RADIUS-Accept message as group membership if the RADIUS tunnel_type attribute is set to ESP | ||||
| charon.plugins.eap-radius.forward.ike_to_radius | RADIUS attributes to be forwarded from IKEv2 to RADIUS (can be defined by name or attribute number, a colon can be used to specify vendor-specific attributes, e.g. Reply-Message, or 11, or 36906:12). | |||||
| charon.plugins.eap-radius.forward.radius_to_ike | Same as above but from RADIUS to IKEv2, a strongSwan specific private notify (40969) is used to transmit the attributes. | |||||
| charon.plugins.eap-radius.id_prefix | Prefix to EAP-Identity, some AAA servers use a IMSI prefix to select the EAP method | |||||
| charon.plugins.eap-radius.nas_identifier | strongSwan | NAS-Identifier to include in RADIUS messages | ||||
| charon.plugins.eap-radius.port | 1812 | Port of RADIUS server (authentication) | ||||
| charon.plugins.eap-radius.secret | Shared secret between RADIUS and NAS | |||||
| charon.plugins.eap-radius.server | IP/Hostname of RADIUS server | |||||
| charon.plugins.eap-radius.servers | Section to specify multiple RADIUS servers, see EapRadius. The nas_identifier, secret, sockets and port (or auth_port) options can be specified for each server. A server's IP/Hostname can be configured using the address option. The acct_port [1813] option can be used to specify the port used for RADIUS accounting. For each server a priority can be specified using the preference [0] option. | |||||
| charon.plugins.eap-radius.sockets | 1 | Number of sockets (ports) to use, increase for high load | ||||
| charon.plugins.eap-sim.request_identity | yes | |||||
| charon.plugins.eap-simaka-sql.database | ||||||
| charon.plugins.eap-simaka-sql.remove_used | ||||||
| charon.plugins.eap-tls.fragment_size | 1024 | Maximum size of an EAP-TLS packet | ||||
| charon.plugins.eap-tls.max_message_count | 32 | Maximum number of processed EAP-TLS packets | ||||
| charon.plugins.eap-tls.include_length | yes | Include length in non-fragmented EAP-TLS packets | ||||
| charon.plugins.eap-tnc.max_message_count | 10 | Maximum number of processed EAP-TNC packets | ||||
| charon.plugins.eap-tnc.protocol | tnccs-1.1 | IF-TNCCS protocol version to be used (tnccs-1.1, tnccs-2.0, tnccs-dynamic) | ||||
| charon.plugins.eap-ttls.fragment_size | 1024 | Maximum size of an EAP-TTLS packet | ||||
| charon.plugins.eap-ttls.max_message_count | 32 | Maximum number of processed EAP-TTLS packets | ||||
| charon.plugins.eap-ttls.include_length | yes | Include length in non-fragmented EAP-TTLS packets | ||||
| charon.plugins.eap-ttls.phase2_method | md5 | Phase2 EAP client authentication method | ||||
| charon.plugins.eap-ttls.phase2_piggyback | no | Phase2 EAP Identity request piggybacked by server onto TLS Finished message | ||||
| charon.plugins.eap-ttls.phase2_tnc | no | Start phase2 EAP TNC protocol after successful client authentication | ||||
| charon.plugins.eap-ttls.request_peer_auth | no | Request peer authentication based on a client certificate | ||||
| charon.plugins.ha.autobalance | 0 | Interval in seconds to automatically balance handled segments between nodes. Set to 0 to disable. | ||||
| charon.plugins.ha.fifo_interface | yes | |||||
| charon.plugins.ha.heartbeat_delay | 1000 | |||||
| charon.plugins.ha.heartbeat_timeout | 2100 | |||||
| charon.plugins.ha.local | ||||||
| charon.plugins.ha.monitor | yes | |||||
| charon.plugins.ha.pools | ||||||
| charon.plugins.ha.remote | ||||||
| charon.plugins.ha.resync | yes | |||||
| charon.plugins.ha.secret | ||||||
| charon.plugins.ha.segment_count | 1 | |||||
| charon.plugins.led.activity_led | ||||||
| charon.plugins.led.blink_time | 50 | |||||
| charon.plugins.kernel-klips.ipsec_dev_count | 4 | Number of ipsecN devices | ||||
| charon.plugins.kernel-klips.ipsec_dev_mtu | 0 | Set MTU of ipsecN device | ||||
| charon.plugins.load-tester.addrs | Subsection that contains key/value pairs with address pools (in CIDR notation) to use for a specific network interface e.g. eth0 = 10.10.0.0/16 | |||||
| charon.plugins.load-tester.addrs_keep | no | Whether to keep dynamic addresses installed even after the associated SA got terminated | ||||
| charon.plugins.load-tester.addrs_prefix | 16 | Network prefix length to use when installing dynamic addresses. If set to -1 the full address is used (i.e. 32 or 128) | ||||
| charon.plugins.load-tester.ca_dir | Directory to load (intermediate) CA certificates from | |||||
| charon.plugins.load-tester.child_rekey | 600 | Seconds to start CHILD_SA rekeying after setup | ||||
| charon.plugins.load-tester.delay | 0 | Delay between initiatons for each thread | ||||
| charon.plugins.load-tester.delete_after_established | no | Delete an IKE_SA as soon as it has been established | ||||
| charon.plugins.load-tester.digest | sha1 | Digest algorithm used when issuing certificates | ||||
| charon.plugins.load-tester.dpd_delay | 0 | DPD delay to use in load test | ||||
| charon.plugins.load-tester.dynamic_port | 0 | Base port to be used for requests (each client uses a different port) | ||||
| charon.plugins.load-tester.eap_password | default-pwd | EAP secret to use in load test | ||||
| charon.plugins.load-tester.enable | no | Enable the load testing plugin. Read LoadTests first! | ||||
| charon.plugins.load-tester.esp | aes128-sha1 | CHILD_SA proposal to use for load tests | ||||
| charon.plugins.load-tester.fake_kernel | no | Fake the kernel interface to allow load-testing against self | ||||
| charon.plugins.load-tester.ike_rekey | 0 | Seconds to start IKE_SA rekeying after setup | ||||
| charon.plugins.load-tester.initiator | 0.0.0.0 | Address to initiate from | ||||
| charon.plugins.load-tester.init_limit | 0 | Global limit of concurrently established SAs during load test | ||||
| charon.plugins.load-tester.initiators | 0 | Number of concurrent initiator threads to use in load test | ||||
| charon.plugins.load-tester.initiator_auth | pubkey | Authentication method(s) the intiator uses | ||||
| charon.plugins.load-tester.initiator_id | Initiator ID to use in load test | |||||
| charon.plugins.load-tester.initiator_match | Initiator ID to match against as responder | |||||
| charon.plugins.load-tester.initiator_tsi | Traffic selector on initiator side, as proposed by initiator | |||||
| charon.plugins.load-tester.initiator_tsr | Traffic selector on responder side, as proposed by initiator | |||||
| charon.plugins.load-tester.iterations | 1 | Number of IKE_SAs to initiate by each initiator in load test | ||||
| charon.plugins.load-tester.issuer_cert | Path to the issuer certificate (if not configured a hard-coded value is used) | |||||
| charon.plugins.load-tester.issuer_key | Path to private key that is used to issue certificates (if not configured a hard-coded value is used) | |||||
| charon.plugins.load-tester.pool | Provide INTERNAL_IPV4_ADDRs from a named pool | |||||
| charon.plugins.load-tester.preshared_key | default-psk | Preshared key to use in load test | ||||
| charon.plugins.load-tester.proposal | aes128-sha1-modp768 | IKE proposal to use in load test | ||||
| charon.plugins.load-tester.responder | 127.0.0.1 | Address to initiation connections to | ||||
| charon.plugins.load-tester.responder | Traffic selector on initiator side, as proposed by initiator | |||||
| charon.plugins.load-tester.responder_auth | pubkey | Authentication method(s) the responder uses | ||||
| charon.plugins.load-tester.responder_id | Responder ID to use in load test | |||||
| charon.plugins.load-tester.responder_tsi | Traffic selector on initiator side, as narrowed by responder | |||||
| charon.plugins.load-tester.responder_tsr | Traffic selector on responder side, as narrowed by responder | |||||
| charon.plugins.load-tester.request_virtual_ip | no | Request an INTERNAL_IPV4_ADDR from the server | ||||
| charon.plugins.load-tester.shutdown_when_complete | no | Shutdown the daemon after all IKE_SAs have been established | ||||
| charon.plugins.load-tester.version | 0 | IKE version to use (0 means use IKEv2 as initiator and accept any version as responder) | ||||
| charon.plugins.radattr.dir | Directory where RADIUS attributes are stored in client-ID specific files, see radattr | |||||
| charon.plugins.radattr.message_id | -1 | RADIUS attributes are added to all IKE_AUTH messages by default (-1), or only to the IKE_AUTH message with the given IKEv2 message ID | ||||
| charon.plugins.resolve.file | /etc/resolv.conf | File used by the resolve plugin to write DNS server entries to | ||||
| charon.plugins.resolve.resolvconf.iface_prefix | lo.inet.ipsec. | Prefix used by the resolve plugin for interface names sent to resolvconf(8). The name server address is appended to this prefix to make it unique. The result has to be a valid interface name according to the rules defined by resolvconf. Also, it should have a high priority according to the order defined in interface-order(5). | ||||
| charon.plugins.sql.database | Database URI for charons SQL plugin | |||||
| charon.plugins.sql.loglevel | -1 | Loglevel for logging to SQL database | ||||
| charon.plugins.stroke.ignore_missing_ca_basic_constraint | no | Treat certificates in ipsec.d/cacerts and ipsec.conf ca sections as CA certificates even if they don't contain a CA basic constraint. | ||||
| charon.plugins.stroke.max_concurrent | 4 | Maximum number of stroke messages handled concurrently | ||||
| charon.plugins.stroke.timeout | 0 | Timeout in ms for any stroke command. Use 0 to disable the timeout | ||||
| charon.plugins.systime-fix.interval | 0 | Interval in seconds to check system time for validity. 0 disables the check. See systime-fix plugin | ||||
| charon.plugins.systime-fix.reauth | no | Whether to use reauth or delete if an invalid cert lifetime is detected | ||||
| charon.plugins.systime-fix.threshold | Threshold date where system time is considered valid. Disabled if not specified | |||||
| charon.plugins.systime-fix.threshold_format | %Y | strptime(3) format used to parse threshold option | ||||
| charon.plugins.tnccs-11.max_message_size | 45000 | Maximum size of a PA-TNC message (XML & Base64 encoding) | ||||
| charon.plugins.tnccs-20.max_batch_size | 65522 | Maximum size of a PB-TNC batch (upper limit via PT-EAP = 65529) | ||||
| charon.plugins.tnccs-20.max_message_size | 65490 | Maximum size of a PA-TNC message (upper limit via PT-EAP = 65497) | ||||
| charon.plugins.tnc-ifmap.client_cert | Path to X.509 certificate file of IF-MAP client | |||||
| charon.plugins.tnc-ifmap.client_key | Path to private key file of IF-MAP client | |||||
| charon.plugins.tnc-ifmap.device_name | Unique name of strongSwan server as a PEP and/or PDP device | |||||
| charon.plugins.tnc-ifmap.server_uri | https://localhost:8444/imap | URI of the form [https:// | servername[:port][/path] |
charon.plugins.tnc-ifmap.server_cert | Path to X.509 certificate file of IF-MAP server | |
| charon.plugins.tnc-ifmap.username_password | Credentials of IF-MAP client of the form username:password | |||||
| charon.plugins.tnc-imc.dlcose | yes | Unload IMC after use | ||||
| charon.plugins.tnc-imc.preferred_language | en | Preferred language for TNC recommendations | ||||
| charon.plugins.tnc-imv.dlcose | yes | Unload IMV after use | ||||
| charon.plugins.tnc-pdp.method | ttls | EAP tunnel method to be used | ||||
| charon.plugins.tnc-pdp.port | 1812 | RADIUS server port the strongSwan PDP is listening on | ||||
| charon.plugins.tnc-pdp.secret | Shared RADIUS secret between strongSwan PDP and NAS | |||||
| charon.plugins.tnc-pdp.server | Name of the strongSwan PDP as contained in the AAA certificate | |||||
| charon.plugins.tnc-pdp.timeout | Timeout in seconds before closing incomplete connections | |||||
| charon.plugins.updown.dns_handler | no | Whether the updown script should handle DNS servers assigned via IKEv1 Mode Config or IKEv2 Config Payloads (if enabled they can't be handled by other plugins, like resolve) | ||||
| charon.plugins.whitelist.enable | yes | Enable loaded whitelist plugin | ||||
| charon.plugins.xauth-eap.backend | radius | EAP plugin to be used as backend for XAuth credential verification, see XAuthEAP | ||||
| charon.plugins.xauth-pam.pam_service | login | PAM service to be used for authentication, see XAuthPAM | ||||
| libstrongswan section | ||||||
| libstrongswan.cert_cache | yes | Whether relations in validated certificate chains should be cached in memory | ||||
| libstrongswan.crypto_test.bench | no | |||||
| libstrongswan.crypto_test.bench_size | 1024 | |||||
| libstrongswan.crypto_test.bench_time | 50 | |||||
| libstrongswan.crypto_test.on_add | no | Test crypto algorithms during registration | ||||
| libstrongswan.crypto_test.on_create | no | Test crypto algorithms on each crypto primitive instantiation | ||||
| libstrongswan.crypto_test.required | no | Strictly require at least one test vector to enable an algorithm | ||||
| libstrongswan.crypto_test.rng_true | no | Whether to test RNG with TRUE quality; requires a lot of entropy | ||||
| libstrongswan.dh_exponent_ansi_x9_42 | yes | Use ANSI X9.42 DH exponent size or optimum size matched to cryptographical strength | ||||
| libstrongswan.ecp_x_coordinate_only | yes | Compliance with the errata for RFC 4753 | ||||
| libstrongswan.host_resolver.max_threads | 3 | Maximum number of concurrent resolver threads (they are terminated if unused) | ||||
| libstrongswan.host_resolver.min_threads | 0 | Minimum number of resolver threads to keep around | ||||
| libstrongswan.integrity_test | no | Check daemon, libstrongswan and plugin integrity at startup | ||||
| libstrongswan.leak_detective.detailed | yes | Includes source file names and line numbers in leak detective output | ||||
| libstrongswan.processor.priority_threads | Subsection to configure the number of reserved threads per priority class (see JobPriority) | |||||
| libstrongswan.x509.enforce_critical | yes | Discard certificates with unsupported or unknown critical extensions | ||||
| libstrongswan plugins subsection | ||||||
| libstrongswan.plugins.attr-sql.database | Database URI for the attr-sql plugin used by charon and pluto | |||||
| libstrongswan.plugins.attr-sql.lease_history | yes | Enable logging of SQL IP pool leases | ||||
| libstrongswan.plugins.gcrypt.quick_random | no | Use faster random numbers in gcrypt; for testing only, produces weak keys! | ||||
| libstrongswan.plugins.openssl.engine_id | pkcs11 | ENGINE ID to use in the OpenSSL plugin | ||||
| libstrongswan.plugins.pkcs11.modules | List of available PKCS#11 modules, see SmartCardsIKEv2 | |||||
| libstrongswan.plugins.pkcs11.load_certs | yes | Whether to load certificates from tokens | ||||
| libstrongswan.plugins.pkcs11.reload_certs | no | Reload certificates from all tokens if charon receives a SIGHUP | ||||
| libstrongswan.plugins.pkcs11.use_dh | no | Whether the PKCS#11 modules should be used for DH and ECDH | ||||
| libstrongswan.plugins.pkcs11.use_ecc | no | Whether the PKCS#11 modules should be used for ECDH and ECDSA public key operations. ECDSA private keys are used regardless of this option | ||||
| libstrongswan.plugins.pkcs11.use_hasher | no | Whether the PKCS#11 modules should be used to hash data | ||||
| libstrongswan.plugins.pkcs11.use_pubkey | no | Whether the PKCS#11 modules should be used for public key operations, even for keys not stored on tokens | ||||
| libstrongswan.plugins.pkcs11.use_rng | no | Whether the PKCS#11 modules should be used as RNG | ||||
| libstrongswan.plugins.random.random | /dev/random | File to read random bytes from | ||||
| libstrongswan.plugins.random.urandom | /dev/urandom | File to read pseudo random bytes from | ||||
| libtls section | ||||||
| libtls.cipher | List of TLS encryption ciphers | |||||
| libtls.key_exchange | List of TLS key exchange methods | |||||
| libtls.mac | List of TLS MAC algorithms | |||||
| libtls.suites | List of TLS cipher suites | |||||
| libtnccs section | ||||||
| libtnccs.tnc_config | /etc/tnc_config | TNC IMC/IMV configuration directory | ||||
| libimcv section | ||||||
| libimcv.assessment_result | yes | Whether IMVs send a standard IETF Assessment Result attribute | ||||
| libimcv.debug_level | 1 | Debug level for a standalone libimcv library | ||||
| libimcv.os_info.name | Manually set the name of the client OS (e.g. Ubuntu) | |||||
| libimcv.os_info.version | Manually set the version of the client OS (e.g. 12.10 i686) | |||||
| libimcv.stderr_quiet | no | Disable the output to stderr in a standalone libimcv library | ||||
| libimcv plugins subsection | ||||||
| libimcv.plugins.imc-attestation.aik_blob | AIK encrypted private key blob file | |||||
| libimcv.plugins.imc-attestation.aik_cert | AIK certificate file | |||||
| libimcv.plugins.imc-attestation.aik_key | AIK public key file | |||||
| libimcv.plugins.imc-attestation.nonce_len | 20 | DH nonce length | ||||
| libimcv.plugins.imc-attestation.use_quote2 | yes | Use Quote2 AIK signature instead of Quote signature | ||||
| libimcv.plugins.imv-attestation.cadir | Path to directory with AIK cacerts | |||||
| libimcv.plugins.imv-attestation.database | Path to database with file measurement information | |||||
| libimcv.plugins.imv-attestation.dh_group | ecp256 | Preferred Diffie-Hellman group | ||||
| libimcv.plugins.imv-attestation.hash_algorithm | sha256 | Preferred measurement hash algorithm | ||||
| libimcv.plugins.imv-attestation.min_nonce_len | 0 | DH minimum nonce length | ||||
| libimcv.plugins.imv-attestation.remediation_uri | URI pointing to attestation remediation instructions | |||||
| libimcv.plugins.imc-os.push_info | yes | Send operating system info without being prompted | ||||
| libimcv.plugins.imv-os.database | Database URI for the database that stores OS information | |||||
| libimcv.plugins.imv-os.remediation_uri | URI pointing to operating system remediation instructions | |||||
| libimcv.plugins.imc-scanner.push_info | yes | Send open listening ports without being prompted | ||||
| libimcv.plugins.imv-scanner.closed_port_policy | yes | By default all ports must be closed (yes) or can be open (no) | ||||
| libimcv.plugins.imv-scanner.remediation_uri | URI pointing to scanner remediation instructions | |||||
| libimcv.plugins.imv-scanner.tcp_ports | List of TCP ports that can be open or must be closed | |||||
| libimcv.plugins.imv-scanner.udp_ports | List of UDP ports that can be open or must be closed | |||||
| libimcv.plugins.imc-test.additional_ids | 0 | Number of additional IMC IDs | ||||
| libimcv.plugins.imc-test.command | none | Command to be sent to the IMV Test | ||||
| libimcv.plugins.imc-test.dummy_size | 0 | Size of dummy attribute to be sent to the Test IMV (0 = disabled) | ||||
| libimcv.plugins.imc-test.retry | no | Do a handshake retry | ||||
| libimcv.plugins.imc-test.retry_command | Command to be sent to the IMV Test in the handshake retry | |||||
| libimcv.plugins.imv-test.rounds | 0 | Number of IMC-IMV retry rounds | ||||
| libimcv.plugins.imv-test.remediation_uri | URI pointing to test remediation instructions | |||||
| manager section | ||||||
| manager.database | Credential database URI for manager | |||||
| manager.debug | no | Enable debugging in manager | ||||
| manager.load | Plugins to load in manager | |||||
| manager.socket | FastCGI socket of manager, to run it statically | |||||
| manager.threads | 10 | Threads to use for request handling | ||||
| manager.timeout | 15m | Session timeout for manager | ||||
| mediation client section | ||||||
| medcli.database | Mediation client database URI | |||||
| medcli.dpd | 5m | DPD timeout to use in mediation client plugin | ||||
| medcli.rekey | 20m | Rekeying time on mediation connections in mediation client plugin | ||||
| mediation server section | ||||||
| medsrv.database | Mediation server database URI | |||||
| medsrv.debug | no | Debugging in mediation server web application | ||||
| medsrv.dpd | 5m | DPD timeout to use in mediation server plugin | ||||
| medsrv.load | Plugins to load in mediation server plugin | |||||
| medsrv.password_length | 6 | Minimum password length required for mediation server user accounts | ||||
| medsrv.rekey | 20m | Rekeying time on mediation connections in mediation server plugin | ||||
| medsrv.socket | Run Mediation server web application statically on socket | |||||
| medsrv.threads | 5 | Number of thread for mediation service web application | ||||
| medsrv.timeout | 15m | Session timeout for mediation service | ||||
| openac section | ||||||
| openac.load | Plugins to load in ipsec openac tool | |||||
| pacman section | ||||||
| pacman.database | Database URI for the database that stores the package information | |||||
| pki section | ||||||
| pki.load | Plugins to load in ipsec pki tool | |||||
| pool section | ||||||
| pool.load | Plugins to load in ipsec pool tool | |||||
| scepclient section | ||||||
| scepclient.load | Plugins to load in ipsec scepclient tool | |||||
| starter section | ||||||
| starter.load | Plugins to load in starter | |||||
| starter.load_warning | yes | Disable charon/pluto plugin load option warning | ||||