mirror of
https://github.com/strongswan/strongswan.git
synced 2025-10-04 00:00:14 -04:00
190a278854
This now works because all plugins use the same config namespace.
If <ns>.load_modular is true, the list of plugins to load is determined
via the value of the <ns>.plugins.<name>.load options.
Using includes the following is possible:
charon {
load_modular = yes
plugins {
include strongswan.d/charon/*.conf
}
}
charon-cmd {
load_modular = yes
plugins {
include strongswan.d/charon-cmd/*.conf
}
}
Where each .conf file would contain something like:
<name> {
load = yes
<option> = <value>
}
To increase the priority of individual plugins load = <priority> can be
used (the default is 1). For instance, to use openssl instead of the
built-in crypto plugins set in strongswan.d/charon/openssl.conf:
openssl {
load = 10
}
If two plugins have the same priority their order in the default plugin
list is preserved. Plugins not found in that list are ordered
alphabetically before other plugins with the same priority.
1782 lines
55 KiB
Groff
1782 lines
55 KiB
Groff
.TH STRONGSWAN.CONF 5 "2013-10-29" "@PACKAGE_VERSION@" "strongSwan"
|
|
.SH NAME
|
|
strongswan.conf \- strongSwan configuration file
|
|
.SH DESCRIPTION
|
|
While the
|
|
.IR ipsec.conf (5)
|
|
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
|
|
.I ipsec starter
|
|
is capable of doing so. As the number of components of the strongSwan project
|
|
is continually growing, a more flexible configuration file was needed, one that
|
|
is easy to extend and can be used by all components. With strongSwan 4.2.1
|
|
.IR strongswan.conf (5)
|
|
was introduced which meets these requirements.
|
|
|
|
.SH SYNTAX
|
|
The format of the strongswan.conf file consists of hierarchical
|
|
.B sections
|
|
and a list of
|
|
.B key/value pairs
|
|
in each section. Each section has a name, followed by C-Style curly brackets
|
|
defining the section body. Each section body contains a set of subsections
|
|
and key/value pairs:
|
|
.PP
|
|
.EX
|
|
settings := (section|keyvalue)*
|
|
section := name { settings }
|
|
keyvalue := key = value\\n
|
|
.EE
|
|
.PP
|
|
Values must be terminated by a newline.
|
|
.PP
|
|
Comments are possible using the \fB#\fP-character, but be careful: The parser
|
|
implementation is currently limited and does not like brackets in comments.
|
|
.PP
|
|
Section names and keys may contain any printable character except:
|
|
.PP
|
|
.EX
|
|
. { } # \\n \\t space
|
|
.EE
|
|
.PP
|
|
An example file in this format might look like this:
|
|
.PP
|
|
.EX
|
|
a = b
|
|
section-one {
|
|
somevalue = asdf
|
|
subsection {
|
|
othervalue = xxx
|
|
}
|
|
# yei, a comment
|
|
yetanother = zz
|
|
}
|
|
section-two {
|
|
x = 12
|
|
}
|
|
.EE
|
|
.PP
|
|
Indentation is optional, you may use tabs or spaces.
|
|
|
|
.SH INCLUDING FILES
|
|
Using the
|
|
.B include
|
|
statement it is possible to include other files into strongswan.conf, e.g.
|
|
.PP
|
|
.EX
|
|
include /some/path/*.conf
|
|
.EE
|
|
.PP
|
|
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 (see
|
|
.IR sh (1)).
|
|
Also, such inclusions can be nested.
|
|
.PP
|
|
Sections loaded from included files
|
|
.I extend
|
|
previously loaded sections; already existing values are
|
|
.IR replaced .
|
|
It is important to note that settings are added relative to the section the
|
|
include statement is in.
|
|
.PP
|
|
As an example, the following three files result in the same final
|
|
config as the one given above:
|
|
.PP
|
|
.EX
|
|
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
|
|
}
|
|
.EE
|
|
|
|
.SH READING VALUES
|
|
Values are accessed using a dot-separated section list and a key.
|
|
With reference to the example above, accessing
|
|
.B section-one.subsection.othervalue
|
|
will return
|
|
.BR xxx .
|
|
|
|
.SH DEFINED KEYS
|
|
The following keys are currently defined (using dot notation). The default
|
|
value (if any) is listed in brackets after the key.
|
|
|
|
.SS attest section
|
|
.TP
|
|
.BR attest.database
|
|
Path to database with file measurement information
|
|
.TP
|
|
.BR attest.load
|
|
Plugins to load in ipsec attest tool
|
|
|
|
.SS charon section
|
|
.TP
|
|
.BR Note :
|
|
Many of these options also apply to \fBcharon\-cmd\fR and other
|
|
\fBcharon\fR derivatives. Just use their respective name (e.g.
|
|
\fIcharon\-cmd\fR) instead of \fIcharon\fR. For many options defaults
|
|
can be defined in the \fIlibstrongswan\fR section.
|
|
.TP
|
|
.BR charon.block_threshold " [5]"
|
|
Maximum number of half-open IKE_SAs for a single peer IP
|
|
.TP
|
|
.BR charon.cert_cache " [yes]"
|
|
Whether relations in validated certificate chains should be cached in memory
|
|
.TP
|
|
.BR charon.cisco_unity " [no]
|
|
Send Cisco Unity vendor ID payload (IKEv1 only)
|
|
.TP
|
|
.BR charon.close_ike_on_child_failure " [no]"
|
|
Close the IKE_SA if setup of the CHILD_SA along with IKE_AUTH failed
|
|
.TP
|
|
.BR charon.cookie_threshold " [10]"
|
|
Number of half-open IKE_SAs that activate the cookie mechanism
|
|
.TP
|
|
.BR charon.crypto_test.bench " [no]"
|
|
|
|
.TP
|
|
.BR charon.crypto_test.bench_size " [1024]"
|
|
|
|
.TP
|
|
.BR charon.crypto_test.bench_time " [50]"
|
|
|
|
.TP
|
|
.BR charon.crypto_test.on_add " [no]"
|
|
Test crypto algorithms during registration
|
|
.TP
|
|
.BR charon.crypto_test.on_create " [no]"
|
|
Test crypto algorithms on each crypto primitive instantiation
|
|
.TP
|
|
.BR charon.crypto_test.required " [no]"
|
|
Strictly require at least one test vector to enable an algorithm
|
|
.TP
|
|
.BR charon.crypto_test.rng_true " [no]"
|
|
Whether to test RNG with TRUE quality; requires a lot of entropy
|
|
.TP
|
|
.BR charon.dh_exponent_ansi_x9_42 " [yes]"
|
|
Use ANSI X9.42 DH exponent size or optimum size matched to cryptographical
|
|
strength
|
|
.TP
|
|
.BR charon.dns1
|
|
.TQ
|
|
.BR charon.dns2
|
|
DNS servers assigned to peer via configuration payload (CP)
|
|
.TP
|
|
.BR charon.dos_protection " [yes]"
|
|
Enable Denial of Service protection using cookies and aggressiveness checks
|
|
.TP
|
|
.BR charon.ecp_x_coordinate_only " [yes]"
|
|
Compliance with the errata for RFC 4753
|
|
.TP
|
|
.BR charon.filelog
|
|
Section to define file loggers, see LOGGER CONFIGURATION
|
|
.TP
|
|
.BR 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.
|
|
.TP
|
|
.BR charon.fragment_size " [512]"
|
|
Maximum size (in bytes) of a sent fragment when using the proprietary IKEv1
|
|
fragmentation extension.
|
|
.TP
|
|
.BR charon.group
|
|
Name of the group the daemon changes to after startup
|
|
.TP
|
|
.BR charon.half_open_timeout " [30]"
|
|
Timeout in seconds for connecting IKE_SAs (also see IKE_SA_INIT DROPPING).
|
|
.TP
|
|
.BR charon.hash_and_url " [no]"
|
|
Enable hash and URL support
|
|
.TP
|
|
.BR charon.host_resolver.max_threads " [3]"
|
|
Maximum number of concurrent resolver threads (they are terminated if unused)
|
|
.TP
|
|
.BR charon.host_resolver.min_threads " [0]"
|
|
Minimum number of resolver threads to keep around
|
|
.TP
|
|
.BR 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)
|
|
.TP
|
|
.BR charon.ignore_routing_tables
|
|
A space-separated list of routing tables to be excluded from route lookups
|
|
.TP
|
|
.BR charon.ikesa_limit " [0]"
|
|
Maximum number of IKE_SAs that can be established at the same time before new
|
|
connection attempts are blocked
|
|
.TP
|
|
.BR charon.ikesa_table_segments " [1]"
|
|
Number of exclusively locked segments in the hash table
|
|
.TP
|
|
.BR charon.ikesa_table_size " [1]"
|
|
Size of the IKE_SA hash table
|
|
.TP
|
|
.BR charon.inactivity_close_ike " [no]"
|
|
Whether to close IKE_SA if the only CHILD_SA closed due to inactivity
|
|
.TP
|
|
.BR charon.init_limit_half_open " [0]"
|
|
Limit new connections based on the current number of half open IKE_SAs (see
|
|
IKE_SA_INIT DROPPING).
|
|
.TP
|
|
.BR charon.init_limit_job_load " [0]"
|
|
Limit new connections based on the number of jobs currently queued for
|
|
processing (see IKE_SA_INIT DROPPING).
|
|
.TP
|
|
.BR charon.initiator_only " [no]"
|
|
Causes charon daemon to ignore IKE initiation requests.
|
|
.TP
|
|
.BR charon.install_routes " [yes]"
|
|
Install routes into a separate routing table for established IPsec tunnels
|
|
.TP
|
|
.BR charon.install_virtual_ip " [yes]"
|
|
Install virtual IP addresses
|
|
.TP
|
|
.BR 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.
|
|
.TP
|
|
.BR charon.integrity_test " [no]"
|
|
Check daemon, libstrongswan and plugin integrity at startup
|
|
.TP
|
|
.BR charon.interfaces_ignore
|
|
A comma-separated list of network interfaces that should be ignored, if
|
|
.B charon.interfaces_use
|
|
is specified this option has no effect.
|
|
.TP
|
|
.BR charon.interfaces_use
|
|
A comma-separated list of network interfaces that should be used by charon.
|
|
All other interfaces are ignored.
|
|
.TP
|
|
.BR charon.keep_alive " [20s]"
|
|
NAT keep alive interval
|
|
.TP
|
|
.BR charon.leak_detective.detailed " [yes]"
|
|
Includes source file names and line numbers in leak detective output
|
|
.TP
|
|
.BR charon.leak_detective.usage_threshold " [10240]"
|
|
Threshold in bytes for leaks to be reported (0 to report all)
|
|
.TP
|
|
.BR charon.leak_detective.usage_threshold_count " [0]"
|
|
Threshold in number of allocations for leaks to be reported (0 to report all)
|
|
.TP
|
|
.BR charon.load
|
|
Plugins to load in the IKEv2 daemon charon
|
|
.TP
|
|
.BR charon.load_modular " [no]"
|
|
If enabled, the list of plugins to load is determined via the value of the
|
|
charon.plugins.<name>.load options. In addition to a simple boolean flag that
|
|
option may take an integer value indicating the priority of a plugin, which
|
|
would influence the order of a plugin in the plugin list (the default is 1).
|
|
If two plugins have the same priority their order in the default plugin list
|
|
is preserved. Enabled plugins not found in that list are ordered alphabetically
|
|
before other plugins with the same priority.
|
|
.TP
|
|
.BR charon.max_packet " [10000]"
|
|
Maximum packet size accepted by charon
|
|
.TP
|
|
.BR charon.multiple_authentication " [yes]"
|
|
Enable multiple authentication exchanges (RFC 4739)
|
|
.TP
|
|
.BR charon.nbns1
|
|
.TQ
|
|
.BR charon.nbns2
|
|
WINS servers assigned to peer via configuration payload (CP)
|
|
.TP
|
|
.BR charon.port " [500]"
|
|
UDP port used locally. If set to 0 a random port will be allocated.
|
|
.TP
|
|
.BR 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
|
|
.BR charon.port ,
|
|
otherwise a random port will be allocated.
|
|
.TP
|
|
.BR charon.process_route " [yes]"
|
|
Process RTM_NEWROUTE and RTM_DELROUTE events
|
|
.TP
|
|
.BR charon.processor.priority_threads
|
|
Subsection to configure the number of reserved threads per priority class
|
|
see JOB PRIORITY MANAGEMENT
|
|
.TP
|
|
.BR charon.receive_delay " [0]"
|
|
Delay in ms for receiving packets, to simulate larger RTT
|
|
.TP
|
|
.BR charon.receive_delay_response " [yes]"
|
|
Delay response messages
|
|
.TP
|
|
.BR charon.receive_delay_request " [yes]"
|
|
Delay request messages
|
|
.TP
|
|
.BR charon.receive_delay_type " [0]"
|
|
Specific IKEv2 message type to delay, 0 for any
|
|
.TP
|
|
.BR charon.replay_window " [32]"
|
|
Size of the AH/ESP replay window, in packets.
|
|
.TP
|
|
.BR charon.retransmit_base " [1.8]"
|
|
Base to use for calculating exponential back off, see IKEv2 RETRANSMISSION
|
|
.TP
|
|
.BR charon.retransmit_timeout " [4.0]
|
|
Timeout in seconds before sending first retransmit
|
|
.TP
|
|
.BR charon.retransmit_tries " [5]"
|
|
Number of times to retransmit a packet before giving up
|
|
.TP
|
|
.BR 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.
|
|
.TP
|
|
.BR charon.reuse_ikesa " [yes]
|
|
Initiate CHILD_SA within existing IKE_SAs
|
|
.TP
|
|
.BR charon.routing_table
|
|
Numerical routing table to install routes to
|
|
.TP
|
|
.BR charon.routing_table_prio
|
|
Priority of the routing table
|
|
.TP
|
|
.BR charon.send_delay " [0]"
|
|
Delay in ms for sending packets, to simulate larger RTT
|
|
.TP
|
|
.BR charon.send_delay_response " [yes]"
|
|
Delay response messages
|
|
.TP
|
|
.BR charon.send_delay_request " [yes]"
|
|
Delay request messages
|
|
.TP
|
|
.BR charon.send_delay_type " [0]"
|
|
Specific IKEv2 message type to delay, 0 for any
|
|
.TP
|
|
.BR charon.send_vendor_id " [no]
|
|
Send strongSwan vendor ID payload
|
|
.TP
|
|
.BR charon.syslog
|
|
Section to define syslog loggers, see LOGGER CONFIGURATION
|
|
.TP
|
|
.BR charon.threads " [16]"
|
|
Number of worker threads in charon. Several of these are reserved for long
|
|
running tasks in internal modules and plugins. Therefore, make sure you don't
|
|
set this value too low. The number of idle worker threads listed in
|
|
.I ipsec statusall
|
|
might be used as indicator on the number of reserved threads.
|
|
.TP
|
|
.BR charon.tls.cipher
|
|
List of TLS encryption ciphers
|
|
.TP
|
|
.BR charon.tls.key_exchange
|
|
List of TLS key exchange methods
|
|
.TP
|
|
.BR charon.tls.mac
|
|
List of TLS MAC algorithms
|
|
.TP
|
|
.BR charon.tls.suites
|
|
List of TLS cipher suites
|
|
.TP
|
|
.BR charon.user
|
|
Name of the user the daemon changes to after startup
|
|
.TP
|
|
.BR charon.x509.enforce_critical " [yes]"
|
|
Discard certificates with unsupported or unknown critical extensions
|
|
.
|
|
.SS charon.plugins subsection
|
|
.TP
|
|
.BR charon.plugins.android_log.loglevel " [1]"
|
|
Loglevel for logging to Android specific logger
|
|
.TP
|
|
.BR charon.plugins.attr
|
|
Section to specify arbitrary attributes that are assigned to a peer via
|
|
configuration payload (CP)
|
|
.TP
|
|
.BR charon.plugins.attr-sql.database
|
|
Database URI for attr-sql plugin used by charon
|
|
.TP
|
|
.BR charon.plugins.attr-sql.lease_history " [yes]"
|
|
Enable logging of SQL IP pool leases
|
|
.TP
|
|
.BR charon.plugins.certexpire.csv.cron
|
|
Cron style string specifying CSV export times
|
|
.TP
|
|
.BR charon.plugins.certexpire.csv.empty_string
|
|
String to use in empty intermediate CA fields
|
|
.TP
|
|
.BR charon.plugins.certexpire.csv.fixed_fields " [yes]"
|
|
Use a fixed intermediate CA field count
|
|
.TP
|
|
.BR charon.plugins.certexpire.csv.force " [yes]"
|
|
Force export of all trustchains we have a private key for
|
|
.TP
|
|
.BR charon.plugins.certexpire.csv.format " [%d:%m:%Y]"
|
|
strftime(3) format string to export expiration dates as
|
|
.TP
|
|
.BR charon.plugins.certexpire.csv.local
|
|
strftime(3) format string for the CSV file name to export local certificates to
|
|
.TP
|
|
.BR charon.plugins.certexpire.csv.remote
|
|
strftime(3) format string for the CSV file name to export remote certificates to
|
|
.TP
|
|
.BR charon.plugins.certexpire.csv.separator " [,]"
|
|
CSV field separator
|
|
.TP
|
|
.BR charon.plugins.coupling.file
|
|
File to store coupling list to
|
|
.TP
|
|
.BR charon.plugins.coupling.hash " [sha1]"
|
|
Hashing algorithm to fingerprint coupled certificates
|
|
.TP
|
|
.BR charon.plugins.coupling.max " [1]"
|
|
Maximum number of coupling entries to create
|
|
.TP
|
|
.BR charon.plugins.dhcp.force_server_address " [no]"
|
|
Always use the configured server address. This might be helpful if the DHCP
|
|
server runs on the same host as strongSwan, and the DHCP daemon does not listen
|
|
on the loopback interface. In that case the server cannot be reached via
|
|
unicast (or even 255.255.255.255) as that would be routed via loopback.
|
|
Setting this option to yes and configuring the local broadcast address (e.g.
|
|
192.168.0.255) as server address might work.
|
|
.TP
|
|
.BR charon.plugins.dhcp.identity_lease " [no]"
|
|
Derive user-defined MAC address from hash of IKEv2 identity
|
|
.TP
|
|
.BR charon.plugins.dhcp.server " [255.255.255.255]"
|
|
DHCP server unicast or broadcast IP address
|
|
.TP
|
|
.BR charon.plugins.dhcp.interface " []"
|
|
Interface name the plugin uses for address allocation. The default is to bind
|
|
to any (0.0.0.0) and let the system decide which way to route the packets to
|
|
the DHCP server.
|
|
.TP
|
|
.BR charon.plugins.dnscert.enable " [no]"
|
|
Enable fetching of CERT RRs via DNS
|
|
.TP
|
|
.BR charon.plugins.duplicheck.enable " [yes]"
|
|
Enable duplicheck plugin (if loaded)
|
|
.TP
|
|
.BR charon.plugins.duplicheck.socket " [unix://@piddir@/charon.dck]"
|
|
Socket provided by the duplicheck plugin
|
|
.TP
|
|
.BR charon.plugins.eap-aka.request_identity " [yes]"
|
|
|
|
.TP
|
|
.BR charon.plugins.eap-aka-3ggp2.seq_check
|
|
|
|
.TP
|
|
.BR 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.
|
|
.TP
|
|
.BR 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.
|
|
.TP
|
|
.BR charon.plugins.eap-gtc.backend " [pam]"
|
|
XAuth backend to be used for credential verification
|
|
.TP
|
|
.BR charon.plugins.eap-peap.fragment_size " [1024]"
|
|
Maximum size of an EAP-PEAP packet
|
|
.TP
|
|
.BR charon.plugins.eap-peap.max_message_count " [32]"
|
|
Maximum number of processed EAP-PEAP packets (0 = no limit)
|
|
.TP
|
|
.BR charon.plugins.eap-peap.include_length " [no]"
|
|
Include length in non-fragmented EAP-PEAP packets
|
|
.TP
|
|
.BR charon.plugins.eap-peap.phase2_method " [mschapv2]"
|
|
Phase2 EAP client authentication method
|
|
.TP
|
|
.BR charon.plugins.eap-peap.phase2_piggyback " [no]"
|
|
Phase2 EAP Identity request piggybacked by server onto TLS Finished message
|
|
.TP
|
|
.BR charon.plugins.eap-peap.phase2_tnc " [no]"
|
|
Start phase2 EAP TNC protocol after successful client authentication
|
|
.TP
|
|
.BR charon.plugins.eap-peap.request_peer_auth " [no]"
|
|
Request peer authentication based on a client certificate
|
|
.TP
|
|
.BR charon.plugins.eap-radius.accounting " [no]"
|
|
Send RADIUS accounting information to RADIUS servers.
|
|
.TP
|
|
.BR charon.plugins.eap-radius.accounting_requires_vip " [no]"
|
|
If enabled, accounting is disabled unless an IKE_SA has at least one virtual IP
|
|
.TP
|
|
.BR charon.plugins.eap-radius.class_group " [no]"
|
|
Use the
|
|
.I class
|
|
attribute sent in the RADIUS-Accept message as group membership information that
|
|
is compared to the groups specified in the
|
|
.B rightgroups
|
|
option in
|
|
.B ipsec.conf (5).
|
|
.TP
|
|
.BR 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.
|
|
.TP
|
|
.BR charon.plugins.eap-radius.dae.enable " [no]"
|
|
Enables support for the Dynamic Authorization Extension (RFC 5176)
|
|
.TP
|
|
.BR charon.plugins.eap-radius.dae.listen " [0.0.0.0]"
|
|
Address to listen for DAE messages from the RADIUS server
|
|
.TP
|
|
.BR charon.plugins.eap-radius.dae.port " [3799]"
|
|
Port to listen for DAE requests
|
|
.TP
|
|
.BR charon.plugins.eap-radius.dae.secret
|
|
Shared secret used to verify/sign DAE messages
|
|
.TP
|
|
.BR charon.plugins.eap-radius.eap_start " [no]"
|
|
Send EAP-Start instead of EAP-Identity to start RADIUS conversation
|
|
.TP
|
|
.BR charon.plugins.eap-radius.filter_id " [no]"
|
|
If the RADIUS
|
|
.I tunnel_type
|
|
attribute with value
|
|
.B ESP
|
|
is received, use the
|
|
.I filter_id
|
|
attribute sent in the RADIUS-Accept message as group membership information that
|
|
is compared to the groups specified in the
|
|
.B rightgroups
|
|
option in
|
|
.B ipsec.conf (5).
|
|
.TP
|
|
.BR 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).
|
|
.TP
|
|
.BR charon.plugins.eap-radius.forward.radius_to_ike
|
|
Same as
|
|
.B charon.plugins.eap-radius.forward.ike_to_radius
|
|
but from RADIUS to
|
|
IKEv2, a strongSwan specific private notify (40969) is used to transmit the
|
|
attributes.
|
|
.TP
|
|
.BR charon.plugins.eap-radius.id_prefix
|
|
Prefix to EAP-Identity, some AAA servers use a IMSI prefix to select the
|
|
EAP method
|
|
.TP
|
|
.BR charon.plugins.eap-radius.nas_identifier " [strongSwan]"
|
|
NAS-Identifier to include in RADIUS messages
|
|
.TP
|
|
.BR charon.plugins.eap-radius.port " [1812]"
|
|
Port of RADIUS server (authentication)
|
|
.TP
|
|
.BR charon.plugins.eap-radius.secret
|
|
Shared secret between RADIUS and NAS
|
|
.TP
|
|
.BR charon.plugins.eap-radius.server
|
|
IP/Hostname of RADIUS server
|
|
.TP
|
|
.BR charon.plugins.eap-radius.servers
|
|
Section to specify multiple RADIUS servers. The
|
|
.BR nas_identifier ,
|
|
.BR secret ,
|
|
.B sockets
|
|
and
|
|
.B port
|
|
(or
|
|
.BR auth_port )
|
|
options can be specified for each server. A server's IP/Hostname can be
|
|
configured using the
|
|
.B address
|
|
option. The
|
|
.BR acct_port " [1813]"
|
|
option can be used to specify the port used for RADIUS accounting.
|
|
For each RADIUS server a priority can be specified using the
|
|
.BR preference " [0]"
|
|
option.
|
|
.TP
|
|
.BR charon.plugins.eap-radius.sockets " [1]"
|
|
Number of sockets (ports) to use, increase for high load
|
|
.TP
|
|
.BR charon.plugins.eap-radius.xauth
|
|
Section to configure multiple XAuth authentication rounds via RADIUS. The subsections define so called
|
|
authentication profiles with arbitrary names. In each profile section one or more XAuth types can be
|
|
configured, with an assigned message. For each type a separate XAuth exchange will be initiated and all
|
|
replies get concatenated into the User-Password attribute, which then gets verified over RADIUS.
|
|
|
|
Available XAuth types are \fBpassword\fR, \fBpasscode\fR, \fBnextpin\fR, and \fBanswer\fR. This type is
|
|
not relevant to strongSwan or the AAA server, but the client may show a different dialog (along with the
|
|
configured message).
|
|
|
|
To use the configured profiles, they have to be configured in the respective connection in
|
|
.IR ipsec.conf (5)
|
|
by appending the profile name, separated by a colon, to the
|
|
.B xauth-radius
|
|
XAauth backend configuration in
|
|
.I rightauth
|
|
or
|
|
.IR rightauth2 ,
|
|
for instance,
|
|
.IR rightauth2=xauth-radius:profile .
|
|
.TP
|
|
.BR charon.plugins.eap-sim.request_identity " [yes]"
|
|
|
|
.TP
|
|
.BR charon.plugins.eap-simaka-sql.database
|
|
|
|
.TP
|
|
.BR charon.plugins.eap-simaka-sql.remove_used " [no]"
|
|
|
|
.TP
|
|
.BR charon.plugins.eap-tls.fragment_size " [1024]"
|
|
Maximum size of an EAP-TLS packet
|
|
.TP
|
|
.BR charon.plugins.eap-tls.max_message_count " [32]"
|
|
Maximum number of processed EAP-TLS packets (0 = no limit)
|
|
.TP
|
|
.BR charon.plugins.eap-tls.include_length " [yes]"
|
|
Include length in non-fragmented EAP-TLS packets
|
|
.TP
|
|
.BR charon.plugins.eap-tnc.max_message_count " [10]"
|
|
Maximum number of processed EAP-TNC packets (0 = no limit)
|
|
.TP
|
|
.BR charon.plugins.eap-tnc.protocol " [tnccs-1.1]"
|
|
IF-TNCCS protocol version to be used (tnccs-1.1, tnccs-2.0, tnccs-dynamic)
|
|
.TP
|
|
.BR charon.plugins.eap-ttls.fragment_size " [1024]"
|
|
Maximum size of an EAP-TTLS packet
|
|
.TP
|
|
.BR charon.plugins.eap-ttls.max_message_count " [32]"
|
|
Maximum number of processed EAP-TTLS packets (0 = no limit)
|
|
.TP
|
|
.BR charon.plugins.eap-ttls.include_length " [yes]"
|
|
Include length in non-fragmented EAP-TTLS packets
|
|
.TP
|
|
.BR charon.plugins.eap-ttls.phase2_method " [md5]"
|
|
Phase2 EAP client authentication method
|
|
.TP
|
|
.BR charon.plugins.eap-ttls.phase2_piggyback " [no]"
|
|
Phase2 EAP Identity request piggybacked by server onto TLS Finished message
|
|
.TP
|
|
.BR charon.plugins.eap-ttls.phase2_tnc " [no]"
|
|
Start phase2 EAP TNC protocol after successful client authentication
|
|
.TP
|
|
.BR charon.plugins.eap-ttls.request_peer_auth " [no]"
|
|
Request peer authentication based on a client certificate
|
|
.TP
|
|
.BR charon.plugins.error-notify.socket " [unix://@piddir@/charon.enfy]"
|
|
Socket provided by the error-notify plugin
|
|
.TP
|
|
.BR charon.plugins.gcrypt.quick_random " [no]"
|
|
Use faster random numbers in gcrypt; for testing only, produces weak keys!
|
|
.TP
|
|
.BR charon.plugins.ha.autobalance " [0]"
|
|
Interval in seconds to automatically balance handled segments between nodes.
|
|
Set to 0 to disable.
|
|
.TP
|
|
.BR charon.plugins.ha.fifo_interface " [yes]"
|
|
|
|
.TP
|
|
.BR charon.plugins.ha.heartbeat_delay " [1000]"
|
|
|
|
.TP
|
|
.BR charon.plugins.ha.heartbeat_timeout " [2100]"
|
|
|
|
.TP
|
|
.BR charon.plugins.ha.local
|
|
|
|
.TP
|
|
.BR charon.plugins.ha.monitor " [yes]"
|
|
|
|
.TP
|
|
.BR charon.plugins.ha.pools
|
|
|
|
.TP
|
|
.BR charon.plugins.ha.remote
|
|
|
|
.TP
|
|
.BR charon.plugins.ha.resync " [yes]"
|
|
|
|
.TP
|
|
.BR charon.plugins.ha.secret
|
|
|
|
.TP
|
|
.BR charon.plugins.ha.segment_count " [1]"
|
|
|
|
.TP
|
|
.BR charon.plugins.ipseckey.enable " [no]"
|
|
Enable fetching of IPSECKEY RRs via DNS
|
|
.TP
|
|
.BR charon.plugins.led.activity_led
|
|
|
|
.TP
|
|
.BR charon.plugins.led.blink_time " [50]"
|
|
|
|
.TP
|
|
.BR charon.plugins.kernel-klips.ipsec_dev_count " [4]"
|
|
Number of ipsecN devices
|
|
.TP
|
|
.BR charon.plugins.kernel-klips.ipsec_dev_mtu " [0]"
|
|
Set MTU of ipsecN device
|
|
.TP
|
|
.BR charon.plugins.kernel-libipsec.allow_peer_ts " [no]"
|
|
Allow that the remote traffic selector equals the IKE peer. The route installed
|
|
for such traffic (via TUN device) usually prevents further IKE traffic. The
|
|
fwmark options for the \fIkernel-netlink\fR and \fIsocket-default\fR plugins can
|
|
be used to circumvent that problem.
|
|
.TP
|
|
.BR charon.plugins.kernel-netlink.fwmark
|
|
Firewall mark to set on the routing rule that directs traffic to our own routing
|
|
table. The format is [!]mark[/mask], where the optional exclamation mark inverts
|
|
the meaning (i.e. the rule only applies to packets that don't match the mark).
|
|
.TP
|
|
.BR charon.plugins.kernel-netlink.roam_events " [yes]"
|
|
Whether to trigger roam events when interfaces, addresses or routes change
|
|
.TP
|
|
.BR charon.plugins.kernel-netlink.xfrm_acq_expires " [165]"
|
|
Lifetime of XFRM acquire state in kernel. The value gets written to
|
|
/proc/sys/net/core/xfrm_acq_expires. Indirectly controls the delay of XFRM
|
|
acquire messages sent.
|
|
.TP
|
|
.BR charon.plugins.kernel-pfroute.vip_wait " [1000]"
|
|
Time in ms to wait until virtual IP addresses appear/disappear before failing.
|
|
.TP
|
|
.BR charon.plugins.load-tester
|
|
Section to configure the load-tester plugin, see LOAD TESTS
|
|
.TP
|
|
.BR charon.plugins.lookip.socket " [unix://@piddir@/charon.lkp]"
|
|
Socket provided by the lookip plugin
|
|
.TP
|
|
.BR charon.plugins.ntru.max_drbg_requests " [4294967294]"
|
|
Number of pseudo-random bit requests from the DRBG before an automatic
|
|
reseeding occurs.
|
|
.TP
|
|
.BR charon.plugins.ntru.parameter_set " [optimum]"
|
|
The following parameter sets are available:
|
|
.BR x9_98_speed ,
|
|
.BR x9_98_bandwidth ,
|
|
.B x9_98_balance
|
|
and
|
|
.BR optimum ,
|
|
the last set not being part of the X9.98 standard but having the best performance.
|
|
.TP
|
|
.BR charon.plugins.openssl.engine_id " [pkcs11]"
|
|
ENGINE ID to use in the OpenSSL plugin
|
|
.TP
|
|
.BR charon.plugins.openssl.fips_mode " [0]"
|
|
Set OpenSSL FIPS mode: disabled(0), enabled(1), Suite B enabled(2)
|
|
.TP
|
|
.BR charon.plugins.pkcs11.modules
|
|
List of available PKCS#11 modules
|
|
.TP
|
|
.BR charon.plugins.pkcs11.load_certs " [yes]"
|
|
Whether to load certificates from tokens
|
|
.TP
|
|
.BR charon.plugins.pkcs11.reload_certs " [no]"
|
|
Reload certificates from all tokens if charon receives a SIGHUP
|
|
.TP
|
|
.BR charon.plugins.pkcs11.use_dh " [no]"
|
|
Whether the PKCS#11 modules should be used for DH and ECDH (see use_ecc option)
|
|
.TP
|
|
.BR charon.plugins.pkcs11.use_ecc " [no]"
|
|
Whether the PKCS#11 modules should be used for ECDH and ECDSA public key
|
|
operations. ECDSA private keys can be used regardless of this option
|
|
.TP
|
|
.BR charon.plugins.pkcs11.use_hasher " [no]"
|
|
Whether the PKCS#11 modules should be used to hash data
|
|
.TP
|
|
.BR charon.plugins.pkcs11.use_pubkey " [no]"
|
|
Whether the PKCS#11 modules should be used for public key operations, even for
|
|
keys not stored on tokens
|
|
.TP
|
|
.BR charon.plugins.pkcs11.use_rng " [no]"
|
|
Whether the PKCS#11 modules should be used as RNG
|
|
.TP
|
|
.BR charon.plugins.radattr.dir
|
|
Directory where RADIUS attributes are stored in client-ID specific files.
|
|
.TP
|
|
.BR charon.plugins.radattr.message_id " [-1]"
|
|
Attributes are added to all IKE_AUTH messages by default (-1), or only to the
|
|
IKE_AUTH message with the given IKEv2 message ID.
|
|
.TP
|
|
.BR charon.plugins.random.random " [@random_device@]"
|
|
File to read random bytes from, instead of @random_device@
|
|
.TP
|
|
.BR charon.plugins.random.urandom " [@urandom_device@]"
|
|
File to read pseudo random bytes from, instead of @urandom_device@
|
|
.TP
|
|
.BR charon.plugins.random.strong_equals_true " [no]"
|
|
If set to yes the RNG_STRONG class reads random bytes from the same source as
|
|
the RNG_TRUE class.
|
|
.TP
|
|
.BR charon.plugins.resolve.file " [/etc/resolv.conf]"
|
|
File where to add DNS server entries
|
|
.TP
|
|
.BR charon.plugins.resolve.resolvconf.iface_prefix " [lo.inet.ipsec.]"
|
|
Prefix used for interface names sent to resolvconf(8). The nameserver 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).
|
|
.TP
|
|
.BR charon.plugins.socket-default.fwmark
|
|
Firewall mark to set on outbound packets.
|
|
.TP
|
|
.BR charon.plugins.socket-default.set_source " [yes]"
|
|
Set source address on outbound packets, if possible.
|
|
.TP
|
|
.BR charon.plugins.socket-default.use_ipv4 " [yes]"
|
|
Listen on IPv4, if possible.
|
|
.TP
|
|
.BR charon.plugins.socket-default.use_ipv6 " [yes]"
|
|
Listen on IPv6, if possible.
|
|
.TP
|
|
.BR charon.plugins.sql.database
|
|
Database URI for charons SQL plugin
|
|
.TP
|
|
.BR charon.plugins.sql.loglevel " [-1]"
|
|
Loglevel for logging to SQL database
|
|
.TP
|
|
.BR 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.
|
|
.TP
|
|
.BR charon.plugins.stroke.max_concurrent " [4]"
|
|
Maximum number of stroke messages handled concurrently
|
|
.TP
|
|
.BR charon.plugins.stroke.prevent_loglevel_changes " [no]"
|
|
If enabled log level changes via stroke socket are not allowed.
|
|
.TP
|
|
.BR charon.plugins.stroke.socket " [unix://@piddir@/charon.ctl]"
|
|
Socket provided by the stroke plugin
|
|
.TP
|
|
.BR charon.plugins.stroke.timeout " [0]"
|
|
Timeout in ms for any stroke command. Use 0 to disable the timeout
|
|
.TP
|
|
.BR charon.plugins.systime-fix.interval " [0]"
|
|
Interval in seconds to check system time for validity. 0 disables the check
|
|
.TP
|
|
.BR charon.plugins.systime-fix.reauth " [no]"
|
|
Whether to use reauth or delete if an invalid cert lifetime is detected
|
|
.TP
|
|
.BR charon.plugins.systime-fix.threshold
|
|
Threshold date where system time is considered valid. Disabled if not specified
|
|
.TP
|
|
.BR charon.plugins.systime-fix.threshold_format " [%Y]"
|
|
strptime(3) format used to parse threshold option
|
|
.TP
|
|
.BR charon.plugins.tnc-ifmap.client_cert
|
|
Path to X.509 certificate file of IF-MAP client
|
|
.TP
|
|
.BR charon.plugins.tnc-ifmap.client_key
|
|
Path to private key file of IF-MAP client
|
|
.TP
|
|
.BR charon.plugins.tnc-ifmap.device_name
|
|
Unique name of strongSwan server as a PEP and/or PDP device
|
|
.TP
|
|
.BR charon.plugins.tnc-ifmap.renew_session_interval " [150]"
|
|
Interval in seconds between periodic IF-MAP RenewSession requests
|
|
.TP
|
|
.BR charon.plugins.tnc-ifmap.server_uri " [https://localhost:8444/imap]"
|
|
URI of the form [https://]servername[:port][/path]
|
|
.TP
|
|
.BR charon.plugins.tnc-ifmap.server_cert
|
|
Path to X.509 certificate file of IF-MAP server
|
|
.TP
|
|
.BR charon.plugins.tnc-ifmap.username_password
|
|
Credentials of IF-MAP client of the form username:password
|
|
.TP
|
|
.BR charon.plugins.tnc-pdp.pt_tls.enable " [yes]"
|
|
Enable PT-TLS protocol on the strongSwan PDP
|
|
.TP
|
|
.BR charon.plugins.tnc-pdp.pt_tls.port " [271]"
|
|
PT-TLS server port the strongSwan PDP is listening on
|
|
.TP
|
|
.BR charon.plugins.tnc-pdp.radius.enable " [yes]"
|
|
Enable RADIUS protocol on the strongSwan PDP
|
|
.TP
|
|
.BR charon.plugins.tnc-pdp.radius.method " [ttls]"
|
|
EAP tunnel method to be used
|
|
.TP
|
|
.BR charon.plugins.tnc-pdp.radius.port " [1812]"
|
|
RADIUS server port the strongSwan PDP is listening on
|
|
.TP
|
|
.BR charon.plugins.tnc-pdp.radius.secret
|
|
Shared RADIUS secret between strongSwan PDP and NAS
|
|
.TP
|
|
.BR charon.plugins.tnc-pdp.server
|
|
Name of the strongSwan PDP as contained in the AAA certificate
|
|
.TP
|
|
.BR charon.plugins.tnc-pdp.timeout
|
|
Timeout in seconds before closing incomplete connections
|
|
.TP
|
|
.BR charon.plugins.unbound.resolv_conf " [/etc/resolv.conf]"
|
|
File to read DNS resolver configuration from
|
|
.TP
|
|
.BR charon.plugins.unbound.trust_anchors " [/etc/ipsec.d/dnssec.keys]"
|
|
File to read DNSSEC trust anchors from (usually root zone KSK). The format of
|
|
the file is the standard DNS Zone file format, anchors can be stored as DS or
|
|
DNSKEY entries in the file.
|
|
.TP
|
|
.BR charon.plugins.unbound.dlv_anchors
|
|
File to read trusted keys for DLV (DNSSEC Lookaside Validation) from. It uses
|
|
the same format as \fItrust_anchors\fR. Only one DLV can be configured, which
|
|
is then used as a root trusted DLV, this means that it is a lookaside for
|
|
the root.
|
|
.TP
|
|
.BR charon.plugins.updown.dns_handler " [no]"
|
|
Whether the updown script should handle DNS serves assigned via IKEv1 Mode
|
|
Config or IKEv2 Config Payloads (if enabled they can't be handled by other
|
|
plugins, like resolve)
|
|
.TP
|
|
.BR charon.plugins.whitelist.enable " [yes]"
|
|
Enable loaded whitelist plugin
|
|
.TP
|
|
.BR charon.plugins.whitelist.socket " [unix://@piddir@/charon.wlst]"
|
|
Socket provided by the whitelist plugin
|
|
.TP
|
|
.BR charon.plugins.xauth-eap.backend " [radius]"
|
|
EAP plugin to be used as backend for XAuth credential verification
|
|
.TP
|
|
.BR charon.plugins.xauth-pam.pam_service " [login]"
|
|
PAM service to be used for authentication
|
|
.TP
|
|
.BR charon.plugins.xauth-pam.session " [no]"
|
|
Open/close a PAM session for each active IKE_SA
|
|
.TP
|
|
.BR charon.plugins.xauth-pam.trim_email " [yes]"
|
|
If an email address is given as an XAuth username, trim it to just the
|
|
username part.
|
|
.SS libtnccs section
|
|
.TP
|
|
.BR libtnccs.tnc_config " [/etc/tnc_config]"
|
|
TNC IMC/IMV configuration directory
|
|
.PP
|
|
.SS libtnccs plugins section
|
|
.TP
|
|
.BR libtnccs.plugins.tnccs-11.max_message_size " [45000]"
|
|
Maximum size of a PA-TNC message (XML & Base64 encoding)
|
|
.TP
|
|
.BR libtnccs.plugins.tnccs-20.max_batch_size " [65522]"
|
|
Maximum size of a PB-TNC batch (upper limit via PT-EAP = 65529)
|
|
.TP
|
|
.BR libtnccs.plugins.tnccs-20.max_message_size " [65490]"
|
|
Maximum size of a PA-TNC message (upper limit via PT-EAP = 65497)
|
|
.TP
|
|
.BR libtnccs.plugins.tnc-imc.dlclose " [yes]"
|
|
Unload IMC after use
|
|
.TP
|
|
.BR libtnccs.plugins.tnc-imc.preferred_language " [en]"
|
|
Preferred language for TNC recommendations
|
|
.TP
|
|
.BR libtnccs.plugins.tnc-imv.dlclose " [yes]"
|
|
Unload IMV after use
|
|
.SS libimcv section
|
|
.TP
|
|
.BR libimcv.assessment_result " [yes]"
|
|
Whether IMVs send a standard IETF Assessment Result attribute
|
|
.TP
|
|
.BR libimcv.database
|
|
Global IMV policy database URI
|
|
.TP
|
|
.BR libimcv.debug_level " [1]"
|
|
Debug level for a stand-alone libimcv library
|
|
.TP
|
|
.BR libimcv.load " [random nonce gmp pubkey x509]"
|
|
Plugins to load in IMC/IMVs
|
|
.TP
|
|
.BR libimcv.os_info.name
|
|
Manually set the name of the client OS (e.g. Ubuntu)
|
|
.TP
|
|
.BR libimcv.os_info.version
|
|
Manually set the version of the client OS (e.g. 12.04 i686)
|
|
.TP
|
|
.BR libimcv.policy_script " [ipsec _imv_policy]"
|
|
Script called for each TNC connection to generate IMV policies
|
|
.TP
|
|
.BR libimcv.stderr_quiet " [no]"
|
|
isable output to stderr with a stand-alone libimcv library
|
|
.PP
|
|
.SS libimcv plugins section
|
|
.TP
|
|
.BR libimcv.plugins.imc-attestation.aik_blob
|
|
AIK encrypted private key blob file
|
|
.TP
|
|
.BR libimcv.plugins.imc-attestation.aik_cert
|
|
AIK certificate file
|
|
.TP
|
|
.BR libimcv.plugins.imc-attestation.aik_key
|
|
AIK public key file
|
|
.TP
|
|
.BR libimcv.plugins.imv-attestation.nonce_len " [20]"
|
|
DH nonce length
|
|
.TP
|
|
.BR libimcv.plugins.imv-attestation.use_quote2 " [yes]"
|
|
Use Quote2 AIK signature instead of Quote signature
|
|
.TP
|
|
.BR libimcv.plugins.imv-attestation.cadir
|
|
Path to directory with AIK cacerts
|
|
.TP
|
|
.BR libimcv.plugins.imv-attestation.dh_group " [ecp256]"
|
|
Preferred Diffie-Hellman group
|
|
.TP
|
|
.BR libimcv.plugins.imv-attestation.hash_algorithm " [sha256]"
|
|
Preferred measurement hash algorithm
|
|
.TP
|
|
.BR libimcv.plugins.imv-attestation.min_nonce_len " [0]"
|
|
DH minimum nonce length
|
|
.TP
|
|
.BR libimcv.plugins.imv-attestation.remediation_uri
|
|
URI pointing to attestation remediation instructions
|
|
.TP
|
|
.BR libimcv.plugins.imc-os.push_info " [yes]"
|
|
Send operating system info without being prompted
|
|
.TP
|
|
.BR libimcv.plugins.imv-os.remediation_uri
|
|
URI pointing to operating system remediation instructions
|
|
.TP
|
|
.BR libimcv.plugins.imc-scanner.push_info " [yes]"
|
|
Send open listening ports without being prompted
|
|
.TP
|
|
.BR libimcv.plugins.imv-scanner.remediation_uri
|
|
URI pointing to scanner remediation instructions
|
|
.TP
|
|
.BR libimcv.plugins.imc-swid.swid_directory " [@prefix@/share]"
|
|
Directory where SWID tags are located
|
|
.TP
|
|
.BR libimcv.plugins.imc-test.additional_ids " [0]"
|
|
Number of additional IMC IDs
|
|
.TP
|
|
.BR libimcv.plugins.imc-test.command " [none]"
|
|
Command to be sent to the Test IMV
|
|
.TP
|
|
.BR libimcv.plugins.imc-test.dummy_size " [0]"
|
|
Size of dummy attribute to be sent to the Test IMV (0 = disabled)
|
|
.TP
|
|
.BR libimcv.plugins.imv-test.remediation_uri
|
|
URI pointing to test remediation instructions
|
|
.TP
|
|
.BR libimcv.plugins.imc-test.retry " [no]"
|
|
Do a handshake retry
|
|
.TP
|
|
.BR libimcv.plugins.imc-test.retry_command
|
|
Command to be sent to the Test IMV in the handshake retry
|
|
.TP
|
|
.BR libimcv.plugins.imv-test.rounds " [0]"
|
|
Number of IMC-IMV retry rounds
|
|
.SS manager section
|
|
.TP
|
|
.BR manager.database
|
|
Credential database URI for manager
|
|
.TP
|
|
.BR manager.debug " [no]"
|
|
Enable debugging in manager
|
|
.TP
|
|
.BR manager.load
|
|
Plugins to load in manager
|
|
.TP
|
|
.BR manager.socket
|
|
FastCGI socket of manager, to run it statically
|
|
.TP
|
|
.BR manager.threads " [10]"
|
|
Threads to use for request handling
|
|
.TP
|
|
.BR manager.timeout " [15m]"
|
|
Session timeout for manager
|
|
.SS mediation client section
|
|
.TP
|
|
.BR medcli.database
|
|
Mediation client database URI
|
|
.TP
|
|
.BR medcli.dpd " [5m]"
|
|
DPD timeout to use in mediation client plugin
|
|
.TP
|
|
.BR medcli.rekey " [20m]"
|
|
Rekeying time on mediation connections in mediation client plugin
|
|
.SS mediation server section
|
|
.TP
|
|
.BR medsrv.database
|
|
Mediation server database URI
|
|
.TP
|
|
.BR medsrv.debug " [no]"
|
|
Debugging in mediation server web application
|
|
.TP
|
|
.BR medsrv.dpd " [5m]"
|
|
DPD timeout to use in mediation server plugin
|
|
.TP
|
|
.BR medsrv.load
|
|
Plugins to load in mediation server plugin
|
|
.TP
|
|
.BR medsrv.password_length " [6]"
|
|
Minimum password length required for mediation server user accounts
|
|
.TP
|
|
.BR medsrv.rekey " [20m]"
|
|
Rekeying time on mediation connections in mediation server plugin
|
|
.TP
|
|
.BR medsrv.socket
|
|
Run Mediation server web application statically on socket
|
|
.TP
|
|
.BR medsrv.threads " [5]"
|
|
Number of thread for mediation service web application
|
|
.TP
|
|
.BR medsrv.timeout " [15m]"
|
|
Session timeout for mediation service
|
|
.SS openac section
|
|
.TP
|
|
.BR openac.load
|
|
Plugins to load in ipsec openac tool
|
|
.SS pacman section
|
|
.TP
|
|
.BR pacman.database
|
|
Database URI for the database that stores the package information
|
|
.SS pki section
|
|
.TP
|
|
.BR pki.load
|
|
Plugins to load in ipsec pki tool
|
|
.SS pool section
|
|
.TP
|
|
.BR pool.load
|
|
Plugins to load in ipsec pool tool
|
|
.SS pt-tls-client section
|
|
.TP
|
|
.BR pt-tls-client.load
|
|
Plugins to load in ipsec pt-tls-client tool
|
|
.SS scepclient section
|
|
.TP
|
|
.BR scepclient.load
|
|
Plugins to load in ipsec scepclient tool
|
|
.SS starter section
|
|
.TP
|
|
.BR starter.load
|
|
Plugins to load in starter
|
|
.TP
|
|
.BR starter.load_warning " [yes]"
|
|
Disable charon plugin load option warning
|
|
|
|
.SH LOGGER CONFIGURATION
|
|
The options described below provide a much more flexible way to configure
|
|
loggers for the IKEv2 daemon charon than using the
|
|
.B charondebug
|
|
option in
|
|
.BR ipsec.conf (5).
|
|
.PP
|
|
.B Please note
|
|
that if any loggers are specified in strongswan.conf,
|
|
.B charondebug
|
|
does not have any effect.
|
|
.PP
|
|
There are currently two types of loggers defined:
|
|
.TP
|
|
.B File loggers
|
|
Log directly to a file and are defined by specifying the full path to the
|
|
file as subsection in the
|
|
.B charon.filelog
|
|
section. To log to the console the two special filenames
|
|
.BR stdout " and " stderr
|
|
can be used.
|
|
.TP
|
|
.B Syslog loggers
|
|
Log into a syslog facility and are defined by specifying the facility to log to
|
|
as the name of a subsection in the
|
|
.B charon.syslog
|
|
section. The following facilities are currently supported:
|
|
.BR daemon " and " auth .
|
|
.PP
|
|
Multiple loggers can be defined for each type with different log verbosity for
|
|
the different subsystems of the daemon.
|
|
.SS Options
|
|
.TP
|
|
.BR charon.filelog.<filename>.default " [1]"
|
|
.TQ
|
|
.BR charon.syslog.<facility>.default
|
|
Specifies the default loglevel to be used for subsystems for which no specific
|
|
loglevel is defined.
|
|
.TP
|
|
.BR charon.filelog.<filename>.<subsystem> " [<default>]"
|
|
.TQ
|
|
.BR charon.syslog.<facility>.<subsystem>
|
|
Specifies the loglevel for the given subsystem.
|
|
.TP
|
|
.BR charon.filelog.<filename>.append " [yes]"
|
|
If this option is enabled log entries are appended to the existing file.
|
|
.TP
|
|
.BR charon.filelog.<filename>.flush_line " [no]"
|
|
Enabling this option disables block buffering and enables line buffering.
|
|
.TP
|
|
.BR charon.filelog.<filename>.ike_name " [no]"
|
|
.TQ
|
|
.BR charon.syslog.<facility>.ike_name
|
|
Prefix each log entry with the connection name and a unique numerical
|
|
identifier for each IKE_SA.
|
|
.TP
|
|
.BR charon.filelog.<filename>.time_format
|
|
Prefix each log entry with a timestamp. The option accepts a format string as
|
|
passed to
|
|
.BR strftime (3).
|
|
.TP
|
|
.BR charon.syslog.identifier
|
|
Global identifier used for an
|
|
.BR openlog (3)
|
|
call, prepended to each log message by syslog. If not configured,
|
|
.BR openlog (3)
|
|
is not called, so the value will depend on system defaults (often the program
|
|
name).
|
|
|
|
.SS Subsystems
|
|
.TP
|
|
.B dmn
|
|
Main daemon setup/cleanup/signal handling
|
|
.TP
|
|
.B mgr
|
|
IKE_SA manager, handling synchronization for IKE_SA access
|
|
.TP
|
|
.B ike
|
|
IKE_SA
|
|
.TP
|
|
.B chd
|
|
CHILD_SA
|
|
.TP
|
|
.B job
|
|
Jobs queueing/processing and thread pool management
|
|
.TP
|
|
.B cfg
|
|
Configuration management and plugins
|
|
.TP
|
|
.B knl
|
|
IPsec/Networking kernel interface
|
|
.TP
|
|
.B net
|
|
IKE network communication
|
|
.TP
|
|
.B asn
|
|
Low-level encoding/decoding (ASN.1, X.509 etc.)
|
|
.TP
|
|
.B enc
|
|
Packet encoding/decoding encryption/decryption operations
|
|
.TP
|
|
.B tls
|
|
libtls library messages
|
|
.TP
|
|
.B esp
|
|
libipsec library messages
|
|
.TP
|
|
.B lib
|
|
libstrongwan library messages
|
|
.TP
|
|
.B tnc
|
|
Trusted Network Connect
|
|
.TP
|
|
.B imc
|
|
Integrity Measurement Collector
|
|
.TP
|
|
.B imv
|
|
Integrity Measurement Verifier
|
|
.TP
|
|
.B pts
|
|
Platform Trust Service
|
|
.SS Loglevels
|
|
.TP
|
|
.B -1
|
|
Absolutely silent
|
|
.TP
|
|
.B 0
|
|
Very basic auditing logs, (e.g. SA up/SA down)
|
|
.TP
|
|
.B 1
|
|
Generic control flow with errors, a good default to see whats going on
|
|
.TP
|
|
.B 2
|
|
More detailed debugging control flow
|
|
.TP
|
|
.B 3
|
|
Including RAW data dumps in Hex
|
|
.TP
|
|
.B 4
|
|
Also include sensitive material in dumps, e.g. keys
|
|
.SS Example
|
|
.PP
|
|
.EX
|
|
charon {
|
|
filelog {
|
|
/var/log/charon.log {
|
|
time_format = %b %e %T
|
|
append = no
|
|
default = 1
|
|
}
|
|
stderr {
|
|
ike = 2
|
|
knl = 3
|
|
ike_name = yes
|
|
}
|
|
}
|
|
syslog {
|
|
# enable logging to LOG_DAEMON, use defaults
|
|
daemon {
|
|
}
|
|
# minimalistic IKE auditing logging to LOG_AUTHPRIV
|
|
auth {
|
|
default = -1
|
|
ike = 0
|
|
}
|
|
}
|
|
}
|
|
.EE
|
|
|
|
.SH JOB PRIORITY MANAGEMENT
|
|
Some operations in the IKEv2 daemon charon are currently implemented
|
|
synchronously and blocking. Two examples for such operations are communication
|
|
with a RADIUS server via EAP-RADIUS, or fetching CRL/OCSP information during
|
|
certificate chain verification. Under high load conditions, the thread pool may
|
|
run out of available threads, and some more important jobs, such as liveness
|
|
checking, may not get executed in time.
|
|
.PP
|
|
To prevent thread starvation in such situations job priorities were introduced.
|
|
The job processor will reserve some threads for higher priority jobs, these
|
|
threads are not available for lower priority, locking jobs.
|
|
.SS Implementation
|
|
Currently 4 priorities have been defined, and they are used in charon as
|
|
follows:
|
|
.TP
|
|
.B CRITICAL
|
|
Priority for long-running dispatcher jobs.
|
|
.TP
|
|
.B HIGH
|
|
INFORMATIONAL exchanges, as used by liveness checking (DPD).
|
|
.TP
|
|
.B MEDIUM
|
|
Everything not HIGH/LOW, including IKE_SA_INIT processing.
|
|
.TP
|
|
.B LOW
|
|
IKE_AUTH message processing. RADIUS and CRL fetching block here
|
|
.PP
|
|
Although IKE_SA_INIT processing is computationally expensive, it is explicitly
|
|
assigned to the MEDIUM class. This allows charon to do the DH exchange while
|
|
other threads are blocked in IKE_AUTH. To prevent the daemon from accepting more
|
|
IKE_SA_INIT requests than it can handle, use IKE_SA_INIT DROPPING.
|
|
.PP
|
|
The thread pool processes jobs strictly by priority, meaning it will consume all
|
|
higher priority jobs before looking for ones with lower priority. Further, it
|
|
reserves threads for certain priorities. A priority class having reserved
|
|
.I n
|
|
threads will always have
|
|
.I n
|
|
threads available for this class (either currently processing a job, or waiting
|
|
for one).
|
|
.SS Configuration
|
|
To ensure that there are always enough threads available for higher priority
|
|
tasks, threads must be reserved for each priority class.
|
|
.TP
|
|
.BR charon.processor.priority_threads.critical " [0]"
|
|
Threads reserved for CRITICAL priority class jobs
|
|
.TP
|
|
.BR charon.processor.priority_threads.high " [0]"
|
|
Threads reserved for HIGH priority class jobs
|
|
.TP
|
|
.BR charon.processor.priority_threads.medium " [0]"
|
|
Threads reserved for MEDIUM priority class jobs
|
|
.TP
|
|
.BR charon.processor.priority_threads.low " [0]"
|
|
Threads reserved for LOW priority class jobs
|
|
.PP
|
|
Let's consider the following configuration:
|
|
.PP
|
|
.EX
|
|
charon {
|
|
processor {
|
|
priority_threads {
|
|
high = 1
|
|
medium = 4
|
|
}
|
|
}
|
|
}
|
|
.EE
|
|
.PP
|
|
With this configuration, one thread is reserved for HIGH priority tasks. As
|
|
currently only liveness checking and stroke message processing is done with
|
|
high priority, one or two threads should be sufficient.
|
|
.PP
|
|
The MEDIUM class mostly processes non-blocking jobs. Unless your setup is
|
|
experiencing many blocks in locks while accessing shared resources, threads for
|
|
one or two times the number of CPU cores is fine.
|
|
.PP
|
|
It is usually not required to reserve threads for CRITICAL jobs. Jobs in this
|
|
class rarely return and do not release their thread to the pool.
|
|
.PP
|
|
The remaining threads are available for LOW priority jobs. Reserving threads
|
|
does not make sense (until we have an even lower priority).
|
|
.SS Monitoring
|
|
To see what the threads are actually doing, invoke
|
|
.IR "ipsec statusall" .
|
|
Under high load, something like this will show up:
|
|
.PP
|
|
.EX
|
|
worker threads: 2 or 32 idle, 5/1/2/22 working,
|
|
job queue: 0/0/1/149, scheduled: 198
|
|
.EE
|
|
.PP
|
|
From 32 worker threads,
|
|
.IP 2
|
|
are currently idle.
|
|
.IP 5
|
|
are running CRITICAL priority jobs (dispatching from sockets, etc.).
|
|
.IP 1
|
|
is currently handling a HIGH priority job. This is actually the thread currently
|
|
providing this information via stroke.
|
|
.IP 2
|
|
are handling MEDIUM priority jobs, likely IKE_SA_INIT or CREATE_CHILD_SA
|
|
messages.
|
|
.IP 22
|
|
are handling LOW priority jobs, probably waiting for an EAP-RADIUS response
|
|
while processing IKE_AUTH messages.
|
|
.PP
|
|
The job queue load shows how many jobs are queued for each priority, ready for
|
|
execution. The single MEDIUM priority job will get executed immediately, as
|
|
we have two spare threads reserved for MEDIUM class jobs.
|
|
|
|
.SH IKE_SA_INIT DROPPING
|
|
If a responder receives more connection requests per seconds than it can handle,
|
|
it does not make sense to accept more IKE_SA_INIT messages. And if they are
|
|
queued but can't get processed in time, an answer might be sent after the
|
|
client has already given up and restarted its connection setup. This
|
|
additionally increases the load on the responder.
|
|
.PP
|
|
To limit the responder load resulting from new connection attempts, the daemon
|
|
can drop IKE_SA_INIT messages just after reception. There are two mechanisms to
|
|
decide if this should happen, configured with the following options:
|
|
.TP
|
|
.BR charon.init_limit_half_open " [0]"
|
|
Limit based on the number of half open IKE_SAs. Half open IKE_SAs are SAs in
|
|
connecting state, but not yet established.
|
|
.TP
|
|
.BR charon.init_limit_job_load " [0]"
|
|
Limit based on the number of jobs currently queued for processing (sum over all
|
|
job priorities).
|
|
.PP
|
|
The second limit includes load from other jobs, such as rekeying. Choosing a
|
|
good value is difficult and depends on the hardware and expected load.
|
|
.PP
|
|
The first limit is simpler to calculate, but includes the load from new
|
|
connections only. If your responder is capable of negotiating 100 tunnels/s, you
|
|
might set this limit to 1000. The daemon will then drop new connection attempts
|
|
if generating a response would require more than 10 seconds. If you are
|
|
allowing for a maximum response time of more than 30 seconds, consider adjusting
|
|
the timeout for connecting IKE_SAs
|
|
.RB ( charon.half_open_timeout ).
|
|
A responder, by default, deletes an IKE_SA if the initiator does not establish
|
|
it within 30 seconds. Under high load, a higher value might be required.
|
|
|
|
.SH LOAD TESTS
|
|
To do stability testing and performance optimizations, the IKEv2 daemon charon
|
|
provides the load-tester plugin. This plugin allows one to setup thousands of
|
|
tunnels concurrently against the daemon itself or a remote host.
|
|
.PP
|
|
.B WARNING:
|
|
Never enable the load-testing plugin on productive systems. It provides
|
|
preconfigured credentials and allows an attacker to authenticate as any user.
|
|
.SS Options
|
|
.TP
|
|
.BR 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
|
|
.TP
|
|
.BR charon.plugins.load-tester.addrs_keep " [no]"
|
|
Whether to keep dynamic addresses even after the associated SA got terminated
|
|
.TP
|
|
.BR 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)
|
|
.TP
|
|
.BR charon.plugins.load-tester.ca_dir
|
|
Directory to load (intermediate) CA certificates from
|
|
.TP
|
|
.BR charon.plugins.load-tester.child_rekey " [600]"
|
|
Seconds to start CHILD_SA rekeying after setup
|
|
.TP
|
|
.BR charon.plugins.load-tester.delay " [0]"
|
|
Delay between initiatons for each thread
|
|
.TP
|
|
.BR charon.plugins.load-tester.delete_after_established " [no]"
|
|
Delete an IKE_SA as soon as it has been established
|
|
.TP
|
|
.BR charon.plugins.load-tester.digest " [sha1]"
|
|
Digest algorithm used when issuing certificates
|
|
.TP
|
|
.BR charon.plugins.load-tester.dpd_delay " [0]"
|
|
DPD delay to use in load test
|
|
.TP
|
|
.BR charon.plugins.load-tester.dynamic_port " [0]"
|
|
Base port to be used for requests (each client uses a different port)
|
|
.TP
|
|
.BR charon.plugins.load-tester.eap_password " [default-pwd]"
|
|
EAP secret to use in load test
|
|
.TP
|
|
.BR charon.plugins.load-tester.enable " [no]"
|
|
Enable the load testing plugin
|
|
.TP
|
|
.BR charon.plugins.load-tester.esp " [aes128-sha1]"
|
|
CHILD_SA proposal to use for load tests
|
|
.TP
|
|
.BR charon.plugins.load-tester.fake_kernel " [no]"
|
|
Fake the kernel interface to allow load-testing against self
|
|
.TP
|
|
.BR charon.plugins.load-tester.ike_rekey " [0]"
|
|
Seconds to start IKE_SA rekeying after setup
|
|
.TP
|
|
.BR charon.plugins.load-tester.init_limit " [0]"
|
|
Global limit of concurrently established SAs during load test
|
|
.TP
|
|
.BR charon.plugins.load-tester.initiator " [0.0.0.0]"
|
|
Address to initiate from
|
|
.TP
|
|
.BR charon.plugins.load-tester.initiators " [0]"
|
|
Number of concurrent initiator threads to use in load test
|
|
.TP
|
|
.BR charon.plugins.load-tester.initiator_auth " [pubkey]"
|
|
Authentication method(s) the intiator uses
|
|
.TP
|
|
.BR charon.plugins.load-tester.initiator_id
|
|
Initiator ID used in load test
|
|
.TP
|
|
.BR charon.plugins.load-tester.initiator_match
|
|
Initiator ID to match against as responder
|
|
.TP
|
|
.BR charon.plugins.load-tester.initiator_tsi
|
|
Traffic selector on initiator side, as proposed by initiator
|
|
.TP
|
|
.BR charon.plugins.load-tester.initiator_tsr
|
|
Traffic selector on responder side, as proposed by initiator
|
|
.TP
|
|
.BR charon.plugins.load-tester.iterations " [1]"
|
|
Number of IKE_SAs to initiate by each initiator in load test
|
|
.TP
|
|
.BR charon.plugins.load-tester.issuer_cert
|
|
Path to the issuer certificate (if not configured a hard-coded value is used)
|
|
.TP
|
|
.BR 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)
|
|
.TP
|
|
.BR charon.plugins.load-tester.mode " [tunnel]"
|
|
IPsec mode to use, one of \fBtunnel\fR, \fBtransport\fR, or \fBbeet\fR.
|
|
.TP
|
|
.BR charon.plugins.load-tester.pool
|
|
Provide INTERNAL_IPV4_ADDRs from a named pool
|
|
.TP
|
|
.BR charon.plugins.load-tester.preshared_key " [default-psk]"
|
|
Preshared key to use in load test
|
|
.TP
|
|
.BR charon.plugins.load-tester.proposal " [aes128-sha1-modp768]"
|
|
IKE proposal to use in load test
|
|
.TP
|
|
.BR charon.plugins.load-tester.responder " [127.0.0.1]"
|
|
Address to initiation connections to
|
|
.TP
|
|
.BR charon.plugins.load-tester.responder_auth " [pubkey]"
|
|
Authentication method(s) the responder uses
|
|
.TP
|
|
.BR charon.plugins.load-tester.responder_id
|
|
Responder ID used in load test
|
|
.TP
|
|
.BR charon.plugins.load-tester.responder_tsi " [initiator_tsi]"
|
|
Traffic selector on initiator side, as narrowed by responder
|
|
.TP
|
|
.BR charon.plugins.load-tester.responder_tsr " [initiator_tsr]"
|
|
Traffic selector on responder side, as narrowed by responder
|
|
.TP
|
|
.BR charon.plugins.load-tester.request_virtual_ip " [no]"
|
|
Request an INTERNAL_IPV4_ADDR from the server
|
|
.TP
|
|
.BR charon.plugins.load-tester.shutdown_when_complete " [no]"
|
|
Shutdown the daemon after all IKE_SAs have been established
|
|
.TP
|
|
.BR charon.plugins.load-tester.socket " [unix://@piddir@/charon.ldt]"
|
|
Socket provided by the load-tester plugin
|
|
.TP
|
|
.BR charon.plugins.load-tester.version " [0]"
|
|
IKE version to use (0 means use IKEv2 as initiator and accept any version as
|
|
responder)
|
|
.PP
|
|
.SS Configuration details
|
|
For public key authentication, the responder uses the
|
|
.B \(dqCN=srv, OU=load-test, O=strongSwan\(dq
|
|
identity. For the initiator, each connection attempt uses a different identity
|
|
in the form
|
|
.BR "\(dqCN=c1-r1, OU=load-test, O=strongSwan\(dq" ,
|
|
where the first number inidicates the client number, the second the
|
|
authentication round (if multiple authentication is used).
|
|
.PP
|
|
For PSK authentication, FQDN identities are used. The server uses
|
|
.BR srv.strongswan.org ,
|
|
the client uses an identity in the form
|
|
.BR c1-r1.strongswan.org .
|
|
.PP
|
|
For EAP authentication, the client uses a NAI in the form
|
|
.BR 100000000010001@strongswan.org .
|
|
.PP
|
|
To configure multiple authentication, concatenate multiple methods using, e.g.
|
|
.EX
|
|
initiator_auth = pubkey|psk|eap-md5|eap-aka
|
|
.EE
|
|
.PP
|
|
The responder uses a hardcoded certificate based on a 1024-bit RSA key.
|
|
This certificate additionally serves as CA certificate. A peer uses the same
|
|
private key, but generates client certificates on demand signed by the CA
|
|
certificate. Install the Responder/CA certificate on the remote host to
|
|
authenticate all clients.
|
|
.PP
|
|
To speed up testing, the load tester plugin implements a special Diffie-Hellman
|
|
implementation called modpnull. By setting
|
|
.EX
|
|
proposal = aes128-sha1-modpnull
|
|
.EE
|
|
this wicked fast DH implementation is used. It does not provide any security
|
|
at all, but allows one to run tests without DH calculation overhead.
|
|
.SS Examples
|
|
.PP
|
|
In the simplest case, the daemon initiates IKE_SAs against itself using the
|
|
loopback interface. This will actually establish double the number of IKE_SAs,
|
|
as the daemon is initiator and responder for each IKE_SA at the same time.
|
|
Installation of IPsec SAs would fails, as each SA gets installed twice. To
|
|
simulate the correct behavior, a fake kernel interface can be enabled which does
|
|
not install the IPsec SAs at the kernel level.
|
|
.PP
|
|
A simple loopback configuration might look like this:
|
|
.PP
|
|
.EX
|
|
charon {
|
|
# create new IKE_SAs for each CHILD_SA to simulate
|
|
# different clients
|
|
reuse_ikesa = no
|
|
# turn off denial of service protection
|
|
dos_protection = no
|
|
|
|
plugins {
|
|
load-tester {
|
|
# enable the plugin
|
|
enable = yes
|
|
# use 4 threads to initiate connections
|
|
# simultaneously
|
|
initiators = 4
|
|
# each thread initiates 1000 connections
|
|
iterations = 1000
|
|
# delay each initiation in each thread by 20ms
|
|
delay = 20
|
|
# enable the fake kernel interface to
|
|
# avoid SA conflicts
|
|
fake_kernel = yes
|
|
}
|
|
}
|
|
}
|
|
.EE
|
|
.PP
|
|
This will initiate 4000 IKE_SAs within 20 seconds. You may increase the delay
|
|
value if your box can not handle that much load, or decrease it to put more
|
|
load on it. If the daemon starts retransmitting messages your box probably can
|
|
not handle all connection attempts.
|
|
.PP
|
|
The plugin also allows one to test against a remote host. This might help to
|
|
test against a real world configuration. A connection setup to do stress
|
|
testing of a gateway might look like this:
|
|
.PP
|
|
.EX
|
|
charon {
|
|
reuse_ikesa = no
|
|
threads = 32
|
|
|
|
plugins {
|
|
load-tester {
|
|
enable = yes
|
|
# 10000 connections, ten in parallel
|
|
initiators = 10
|
|
iterations = 1000
|
|
# use a delay of 100ms, overall time is:
|
|
# iterations * delay = 100s
|
|
delay = 100
|
|
# address of the gateway
|
|
remote = 1.2.3.4
|
|
# IKE-proposal to use
|
|
proposal = aes128-sha1-modp1024
|
|
# use faster PSK authentication instead
|
|
# of 1024bit RSA
|
|
initiator_auth = psk
|
|
responder_auth = psk
|
|
# request a virtual IP using configuration
|
|
# payloads
|
|
request_virtual_ip = yes
|
|
# enable CHILD_SA every 60s
|
|
child_rekey = 60
|
|
}
|
|
}
|
|
}
|
|
.EE
|
|
|
|
.SH IKEv2 RETRANSMISSION
|
|
Retransmission timeouts in the IKEv2 daemon charon can be configured globally
|
|
using the three keys listed below:
|
|
.PP
|
|
.RS
|
|
.nf
|
|
.BR charon.retransmit_base " [1.8]"
|
|
.BR charon.retransmit_timeout " [4.0]"
|
|
.BR charon.retransmit_tries " [5]"
|
|
.fi
|
|
.RE
|
|
.PP
|
|
The following algorithm is used to calculate the timeout:
|
|
.PP
|
|
.EX
|
|
relative timeout = retransmit_timeout * retransmit_base ^ (n-1)
|
|
.EE
|
|
.PP
|
|
Where
|
|
.I n
|
|
is the current retransmission count.
|
|
.PP
|
|
Using the default values, packets are retransmitted in:
|
|
|
|
.TS
|
|
l r r
|
|
---
|
|
lB r r.
|
|
Retransmission Relative Timeout Absolute Timeout
|
|
1 4s 4s
|
|
2 7s 11s
|
|
3 13s 24s
|
|
4 23s 47s
|
|
5 42s 89s
|
|
giving up 76s 165s
|
|
.TE
|
|
|
|
.SH FILES
|
|
/etc/strongswan.conf
|
|
|
|
.SH SEE ALSO
|
|
\fBipsec.conf\fR(5), \fBipsec.secrets\fR(5), \fBipsec\fR(8), \fBcharon-cmd\fR(8)
|
|
|
|
.SH HISTORY
|
|
Written for the
|
|
.UR http://www.strongswan.org
|
|
strongSwan project
|
|
.UE
|
|
by Tobias Brunner, Andreas Steffen and Martin Willi.
|