|
NAME | SYNOPSIS | DESCRIPTION | AUTHOR | COLOPHON |
IP-XFRM(8) Linux IP-XFRM(8)
ip-xfrm - transform configuration
ip [ OPTIONS ] xfrm { COMMAND | help }
ip xfrm XFRM-OBJECT { COMMAND | help }
XFRM-OBJECT := state | policy | monitor
ip xfrm state { add | update } ID [ ALGO-LIST ] [ mode MODE ] [ mark
MARK [ mask MASK ] ] [ reqid REQID ] [ seq SEQ ] [ replay-
window SIZE ] [ replay-seq SEQ ] [ replay-oseq SEQ ] [
replay-seq-hi SEQ ] [ replay-oseq-hi SEQ ] [ flag FLAG-LIST ]
[ sel SELECTOR ] [ LIMIT-LIST ] [ encap ENCAP ] [ coa
ADDR[/PLEN] ] [ ctx CTX ] [ extra-flag EXTRA-FLAG-LIST ]
ip xfrm state allocspi ID [ mode MODE ] [ mark MARK [ mask MASK ] ] [
reqid REQID ] [ seq SEQ ] [ min SPI max SPI ]
ip xfrm state { delete | get } ID [ mark MARK [ mask MASK ] ]
ip xfrm state { deleteall | list } [ ID ] [ mode MODE ] [ reqid REQID
] [ flag FLAG-LIST ]
ip xfrm state flush [ proto XFRM-PROTO ]
ip xfrm state count
ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM-PROTO ] [ spi SPI ]
XFRM-PROTO := esp | ah | comp | route2 | hao
ALGO-LIST := [ ALGO-LIST ] ALGO
ALGO := { enc | auth } ALGO-NAME ALGO-KEYMAT |
auth-trunc ALGO-NAME ALGO-KEYMAT ALGO-TRUNC-LEN |
aead ALGO-NAME ALGO-KEYMAT ALGO-ICV-LEN |
comp ALGO-NAME
MODE := transport | tunnel | beet | ro | in_trigger
FLAG-LIST := [ FLAG-LIST ] FLAG
FLAG := noecn | decap-dscp | nopmtudisc | wildrecv | icmp | af-unspec
| align4 | esn
SELECTOR := [ src ADDR[/PLEN] ] [ dst ADDR[/PLEN] ] [ dev DEV ]
[ UPSPEC ]
UPSPEC := proto { PROTO |
{ tcp | udp | sctp | dccp } [ sport PORT ] [ dport PORT ] |
{ icmp | ipv6-icmp | mobility-header } [ type NUMBER ] [ code
NUMBER ] |
gre [ key { DOTTED-QUAD | NUMBER } ] }
LIMIT-LIST := [ LIMIT-LIST ] limit LIMIT
LIMIT := { time-soft | time-hard | time-use-soft | time-use-hard }
SECONDS |
{ byte-soft | byte-hard } SIZE |
{ packet-soft | packet-hard } COUNT
ENCAP := { espinudp | espinudp-nonike } SPORT DPORT OADDR
EXTRA-FLAG-LIST := [ EXTRA-FLAG-LIST ] EXTRA-FLAG
EXTRA-FLAG := dont-encap-dscp
ip xfrm policy { add | update } SELECTOR dir DIR [ ctx CTX ] [ mark
MARK [ mask MASK ] ] [ index INDEX ] [ ptype PTYPE ] [ action
ACTION ] [ priority PRIORITY ] [ flag FLAG-LIST ] [ LIMIT-
LIST ] [ TMPL-LIST ]
ip xfrm policy { delete | get } { SELECTOR | index INDEX } dir DIR [
ctx CTX ] [ mark MARK [ mask MASK ] ] [ ptype PTYPE ]
ip xfrm policy { deleteall | list } [ SELECTOR ] [ dir DIR ] [ index
INDEX ] [ ptype PTYPE ] [ action ACTION ] [ priority PRIORITY
] [ flag FLAG-LIST]
ip xfrm policy flush [ ptype PTYPE ]
ip xfrm policy count
ip xfrm policy set [ hthresh4 LBITS RBITS ] [ hthresh6 LBITS RBITS ]
SELECTOR := [ src ADDR[/PLEN] ] [ dst ADDR[/PLEN] ] [ dev DEV ] [
UPSPEC ]
UPSPEC := proto { PROTO |
{ tcp | udp | sctp | dccp } [ sport PORT ] [ dport PORT ] |
{ icmp | ipv6-icmp | mobility-header } [ type NUMBER ] [ code
NUMBER ] |
gre [ key { DOTTED-QUAD | NUMBER } ] }
DIR := in | out | fwd
PTYPE := main | sub
ACTION := allow | block
FLAG-LIST := [ FLAG-LIST ] FLAG
FLAG := localok | icmp
LIMIT-LIST := [ LIMIT-LIST ] limit LIMIT
LIMIT := { time-soft | time-hard | time-use-soft | time-use-hard }
SECONDS |
{ byte-soft | byte-hard } SIZE |
{ packet-soft | packet-hard } COUNT
TMPL-LIST := [ TMPL-LIST ] tmpl TMPL
TMPL := ID [ mode MODE ] [ reqid REQID ] [ level LEVEL ]
ID := [ src ADDR ] [ dst ADDR ] [ proto XFRM-PROTO ] [ spi SPI ]
XFRM-PROTO := esp | ah | comp | route2 | hao
MODE := transport | tunnel | beet | ro | in_trigger
LEVEL := required | use
ip xfrm monitor [ all-nsid ] [ all
| LISTofXFRM-OBJECTS ]
LISTofXFRM-OBJECTS := [ LISTofXFRM-OBJECTS ] XFRM-OBJECT
XFRM-OBJECT := acquire | expire | SA | policy | aevent | report
xfrm is an IP framework for transforming packets (such as encrypting
their payloads). This framework is used to implement the IPsec
protocol suite (with the state object operating on the Security
Association Database, and the policy object operating on the Security
Policy Database). It is also used for the IP Payload Compression
Protocol and features of Mobile IPv6.
ip xfrm state add add new state into xfrm
ip xfrm state update update existing state in xfrm
ip xfrm state allocspi allocate an SPI value
ip xfrm state delete delete existing state in xfrm
ip xfrm state get get existing state in xfrm
ip xfrm state deleteall delete all existing state in xfrm
ip xfrm state list print out the list of existing state in xfrm
ip xfrm state flush flush all state in xfrm
ip xfrm state count count all existing state in xfrm
ID is specified by a source address, destination address,
transform protocol XFRM-PROTO, and/or Security Parameter Index
SPI. (For IP Payload Compression, the Compression Parameter
Index or CPI is used for SPI.)
XFRM-PROTO
specifies a transform protocol: IPsec Encapsulating Security
Payload (esp), IPsec Authentication Header (ah), IP Payload
Compression (comp), Mobile IPv6 Type 2 Routing Header
(route2), or Mobile IPv6 Home Address Option (hao).
ALGO-LIST
contains one or more algorithms to use. Each algorithm ALGO is
specified by:
· the algorithm type: encryption (enc), authentication
(auth or auth-trunc), authenticated encryption with
associated data (aead), or compression (comp)
· the algorithm name ALGO-NAME (see below)
· (for all except comp) the keying material ALGO-KEYMAT,
which may include both a key and a salt or nonce value;
refer to the corresponding RFC
· (for auth-trunc only) the truncation length ALGO-TRUNC-
LEN in bits
· (for aead only) the Integrity Check Value length ALGO-
ICV-LEN in bits
Encryption algorithms include ecb(cipher_null), cbc(des),
cbc(des3_ede), cbc(cast5), cbc(blowfish), cbc(aes),
cbc(serpent), cbc(camellia), cbc(twofish), and
rfc3686(ctr(aes)).
Authentication algorithms include digest_null, hmac(md5),
hmac(sha1), hmac(sha256), hmac(sha384), hmac(sha512),
hmac(rmd160), and xcbc(aes).
Authenticated encryption with associated data (AEAD)
algorithms include rfc4106(gcm(aes)), rfc4309(ccm(aes)), and
rfc4543(gcm(aes)).
Compression algorithms include deflate, lzs, and lzjh.
MODE specifies a mode of operation for the transform protocol.
IPsec and IP Payload Compression modes are transport, tunnel,
and (for IPsec ESP only) Bound End-to-End Tunnel (beet). Mo‐
bile IPv6 modes are route optimization (ro) and inbound trig‐
ger (in_trigger).
FLAG-LIST
contains one or more of the following optional flags: noecn,
decap-dscp, nopmtudisc, wildrecv, icmp, af-unspec, align4, or
esn.
SELECTOR
selects the traffic that will be controlled by the policy,
based on the source address, the destination address, the net‐
work device, and/or UPSPEC.
UPSPEC selects traffic by protocol. For the tcp, udp, sctp, or dccp
protocols, the source and destination port can optionally be
specified. For the icmp, ipv6-icmp, or mobility-header proto‐
cols, the type and code numbers can optionally be specified.
For the gre protocol, the key can optionally be specified as a
dotted-quad or number. Other protocols can be selected by
name or number PROTO.
LIMIT-LIST
sets limits in seconds, bytes, or numbers of packets.
ENCAP encapsulates packets with protocol espinudp or espinudp-non‐
ike, using source port SPORT, destination port DPORT , and
original address OADDR.
ip xfrm policy add add a new policy
ip xfrm policy update update an existing policy
ip xfrm policy delete delete an existing policy
ip xfrm policy get get an existing policy
ip xfrm policy deleteall delete all existing xfrm policies
ip xfrm policy list print out the list of xfrm policies
ip xfrm policy flush flush policies
SELECTOR
selects the traffic that will be controlled by the policy,
based on the source address, the destination address, the net‐
work device, and/or UPSPEC.
UPSPEC selects traffic by protocol. For the tcp, udp, sctp, or dccp
protocols, the source and destination port can optionally be
specified. For the icmp, ipv6-icmp, or mobility-header proto‐
cols, the type and code numbers can optionally be specified.
For the gre protocol, the key can optionally be specified as a
dotted-quad or number. Other protocols can be selected by
name or number PROTO.
DIR selects the policy direction as in, out, or fwd.
CTX sets the security context.
PTYPE can be main (default) or sub.
ACTION can be allow (default) or block.
PRIORITY
is a number that defaults to zero.
FLAG-LIST
contains one or both of the following optional flags: local or
icmp.
LIMIT-LIST
sets limits in seconds, bytes, or numbers of packets.
TMPL-LIST
is a template list specified using ID, MODE, REQID, and/or
LEVEL.
ID is specified by a source address, destination address, trans‐
form protocol XFRM-PROTO, and/or Security Parameter Index SPI.
(For IP Payload Compression, the Compression Parameter Index
or CPI is used for SPI.)
XFRM-PROTO
specifies a transform protocol: IPsec Encapsulating Security
Payload (esp), IPsec Authentication Header (ah), IP Payload
Compression (comp), Mobile IPv6 Type 2 Routing Header
(route2), or Mobile IPv6 Home Address Option (hao).
MODE specifies a mode of operation for the transform protocol.
IPsec and IP Payload Compression modes are transport, tunnel,
and (for IPsec ESP only) Bound End-to-End Tunnel (beet). Mo‐
bile IPv6 modes are route optimization (ro) and inbound trig‐
ger (in_trigger).
LEVEL can be required (default) or use.
ip xfrm policy count count existing policies
Use one or more -s options to display more details, including policy
hash table information.
ip xfrm policy set configure the policy hash table
Security policies whose address prefix lengths are greater than or
equal policy hash table thresholds are hashed. Others are stored in
the policy_inexact chained list.
LBITS specifies the minimum local address prefix length of policies
that are stored in the Security Policy Database hash table.
RBITS specifies the minimum remote address prefix length of policies
that are stored in the Security Policy Database hash table.
ip xfrm monitor state monitoring for xfrm objects
The xfrm objects to monitor can be optionally specified.
If the all-nsid option is set, the program listens to all network
namespaces that have a nsid assigned into the network namespace were
the program is running. A prefix is displayed to show the network
namespace where the message originates. Example:
[nsid 1]Flushed state proto 0
Manpage revised by David Ward <david.ward@ll.mit.edu>
Manpage revised by Christophe Gouault <christophe.gouault@6wind.com>
Manpage revised by Nicolas Dichtel <nicolas.dichtel@6wind.com>
This page is part of the iproute2 (utilities for controlling TCP/IP
networking and traffic) project. Information about the project can
be found at
⟨http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2⟩.
If you have a bug report for this manual page, send it to
netdev@vger.kernel.org, shemminger@osdl.org. This page was obtained
from the project's upstream Git repository
⟨git://git.kernel.org/pub/scm/linux/kernel/git/shemminger/iproute2.git⟩
on 2017-07-05. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-to-
date source for the page, or you have corrections or improvements to
the information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
iproute2 20 Dec 2011 IP-XFRM(8)
Pages that refer to this page: systemd.netdev(5), ip(8)