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a605452c03
This avoids races that could potentially occur when doing the check during SA installation. Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
136 lines
5.9 KiB
Plaintext
136 lines
5.9 KiB
Plaintext
charon.plugins.kernel-netlink.buflen = <min(PAGE_SIZE, 8192)>
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Buffer size for received Netlink messages.
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charon.plugins.kernel-netlink.force_receive_buffer_size = no
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Force maximum Netlink receive buffer on Netlink socket.
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If the maximum Netlink socket receive buffer in bytes set by
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_receive_buffer_size_ exceeds the system-wide maximum from
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/proc/sys/net/core/rmem_max, this option can be used to override the limit.
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Enabling this option requires special privileges (CAP_NET_ADMIN).
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charon.plugins.kernel-netlink.fwmark =
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Firewall mark to set on the routing rule that directs traffic to our routing
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table.
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Firewall mark to set on the routing rule that directs traffic to our routing
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table. The format is [!]mark[/mask], where the optional exclamation mark
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inverts the meaning (i.e. the rule only applies to packets that don't match
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the mark).
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charon.plugins.kernel-netlink.hw_offload_feature_interface = lo
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Interface to be used to find hardware offload feature flag on.
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If the kernel supports hardware offloading, the plugin needs to find the
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feature flag which represents hardware offloading support for network
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devices. Using the loopback device for this purpose is usually fine, since
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it should always be present. For rare cases in which the loopback device
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cannot be used to obtain the appropriate feature flag, this option can
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be used to specify an alternative interface for offload feature detection.
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charon.plugins.kernel-netlink.mss = 0
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MSS to set on installed routes, 0 to disable.
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charon.plugins.kernel-netlink.mtu = 0
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MTU to set on installed routes, 0 to disable.
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charon.plugins.kernel-netlink.parallel_route = no
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Whether to perform concurrent Netlink ROUTE queries on a single socket.
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Whether to perform concurrent Netlink ROUTE queries on a single socket.
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While parallel queries can improve throughput, it has more overhead. On
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vanilla Linux, DUMP queries fail with EBUSY and must be retried, further
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decreasing performance.
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charon.plugins.kernel-netlink.parallel_xfrm = no
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Whether to perform concurrent Netlink XFRM queries on a single socket.
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charon.plugins.kernel-netlink.policy_update = no
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Whether to always use XFRM_MSG_UPDPOLICY to install policies.
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charon.plugins.kernel-netlink.port_bypass = no
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Whether to use port or socket based IKE XFRM bypass policies.
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Whether to use port or socket based IKE XFRM bypass policies.
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IKE bypass policies are used to exempt IKE traffic from XFRM processing.
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The default socket based policies are directly tied to the IKE UDP sockets,
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port based policies use global XFRM bypass policies for the used IKE UDP
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ports.
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charon.plugins.kernel-netlink.process_rules = no
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Whether to process changes in routing rules to trigger roam events.
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Whether to process changes in routing rules to trigger roam events. This is
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currently only useful if the kernel based route lookup is used (i.e. if
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route installation is disabled or an inverted fwmark match is configured).
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charon.plugins.kernel-netlink.receive_buffer_size = 0
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Maximum Netlink socket receive buffer in bytes.
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Maximum Netlink socket receive buffer in bytes. This value controls how many
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bytes of Netlink messages can be received on a Netlink socket. The default
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value is set by /proc/sys/net/core/rmem_default. The specified value cannot
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exceed the system-wide maximum from /proc/sys/net/core/rmem_max, unless
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_force_receive_buffer_size_ is enabled.
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charon.plugins.kernel-netlink.roam_events = yes
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Whether to trigger roam events when interfaces, addresses or routes change.
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charon.plugins.kernel-netlink.set_proto_port_transport_sa = no
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Whether to set protocol and ports in the selector installed on transport
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mode IPsec SAs in the kernel.
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Whether to set protocol and ports in the selector installed on transport
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mode IPsec SAs in the kernel. While doing so enforces policies for inbound
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traffic, it also prevents the use of a single IPsec SA by more than one
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traffic selector.
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charon.plugins.kernel-netlink.spdh_thresh {}
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XFRM policy hashing threshold configuration for IPv4 and IPv6.
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XFRM policy hashing threshold configuration for IPv4 and IPv6.
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The section defines hashing thresholds to configure in the kernel during
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daemon startup. Each address family takes a threshold for the local subnet
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of an IPsec policy (src in out-policies, dst in in- and forward-policies)
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and the remote subnet (dst in out-policies, src in in- and
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forward-policies).
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If the subnet has more or equal net bits than the threshold, the first
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threshold bits are used to calculate a hash to lookup the policy.
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Policy hashing thresholds are not supported before Linux 3.18 and might
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conflict with socket policies before Linux 4.8.
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charon.plugins.kernel-netlink.spdh_thresh.ipv4.lbits = 32
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Local subnet XFRM policy hashing threshold for IPv4.
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charon.plugins.kernel-netlink.spdh_thresh.ipv4.rbits = 32
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Remote subnet XFRM policy hashing threshold for IPv4.
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charon.plugins.kernel-netlink.spdh_thresh.ipv6.lbits = 128
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Local subnet XFRM policy hashing threshold for IPv6.
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charon.plugins.kernel-netlink.spdh_thresh.ipv6.rbits = 128
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Remote subnet XFRM policy hashing threshold for IPv6.
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charon.plugins.kernel-netlink.retries = 0
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Number of Netlink message retransmissions to send on timeout.
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charon.plugins.kernel-netlink.timeout = 0
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Netlink message retransmission timeout, 0 to disable retransmissions.
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charon.plugins.kernel-netlink.ignore_retransmit_errors = no
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Whether to ignore errors potentially resulting from a retransmission.
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charon.plugins.kernel-netlink.xfrm_acq_expires = 165
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Lifetime of XFRM acquire state and allocated SPIs in kernel.
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Lifetime of XFRM acquire state created by the kernel when traffic matches a
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trap policy. The value gets written to /proc/sys/net/core/xfrm_acq_expires.
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Indirectly controls the delay between XFRM acquire messages triggered by the
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kernel for a trap policy. The same value is used as timeout for SPIs
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allocated by the kernel. The default value equals the total retransmission
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timeout for IKE messages, see IKEv2 RETRANSMISSION in
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**strongswan.conf**(5).
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