ip-xfrm(8) - BetterMan

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Options · 35

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
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). Mobile IPv6 modes are route optimization (ro) and inbound trigger (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 network 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 protocols, 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, espinudp-nonike, or espintcp, using source port SPORT, destination port DPORT , and original address OADDR.
MARK	used to match xfrm policies and states
OUTPUT-MARK	used to set the output mark to influence the routing of the packets emitted by the state
IF-ID	xfrm interface identifier used to in both xfrm policies and states
DEV	Network interface name used to offload policies and states
nosock	filter (remove) all socket policies from the output.
SELECTOR	selects the traffic that will be controlled by the policy, based on the source address, the destination address, the network 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 protocols, 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, 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).
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). Mobile IPv6 modes are route optimization (ro) and inbound trigger (in_trigger).
LEVEL	can be required (default) or use.
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.

SYNOPSIS

ip [ OPTIONS ] xfrm { COMMAND | help }

ip xfrmXFRM-OBJECT { COMMAND | help }

XFRM-OBJECT := state | policy | monitor

ip xfrm state { add | update } ID [ ALGO-LIST ] [ modeMODE ] [ markMARK [ maskMASK ] ] [ reqidREQID ] [ dirSA-DIR ] [ seqSEQ ] [ replay-windowSIZE ] [ replay-seqSEQ ] [ replay-oseqSEQ ] [ replay-seq-hiSEQ ] [ replay-oseq-hiSEQ ] [ flagFLAG-LIST ] [ selSELECTOR ] [ LIMIT-LIST ] [ encapENCAP ] [ coaADDR[/PLEN] ] [ ctxCTX ] [ extra-flagEXTRA-FLAG-LIST ] [ output-markOUTPUT-MARK [ maskMASK ] ] [ if_idIF-ID ] [ offload [ crypto|packet ] dev DEV dir DIR ] [ tfcpadLENGTH ]

ip xfrm state allocspiID [ modeMODE ] [ markMARK [ maskMASK ] ] [ reqidREQID ] [ seqSEQ ] [ minSPImaxSPI ]

ip xfrm state { delete | get } ID [ markMARK [ maskMASK ] ]

ip [ -4 | -6 ] xfrm state deleteall [ ID ] [ modeMODE ] [ reqidREQID ] [ flagFLAG-LIST ]

ip [ -4 | -6 ] xfrm state list [ ID ] [ nokeys ] [ modeMODE ] [ reqidREQID ] [ flagFLAG-LIST ]

ip xfrm state flush [ protoXFRM-PROTO ]

ip xfrm state count

ID := [ srcADDR ] [ dstADDR ] [ protoXFRM-PROTO ] [ spiSPI ]

XFRM-PROTO := esp | ah | comp | route2 | hao

ALGO-LIST := [ ALGO-LIST ] ALGO

ALGO := { enc | auth } ALGO-NAMEALGO-KEYMAT | auth-truncALGO-NAMEALGO-KEYMATALGO-TRUNC-LEN | aeadALGO-NAMEALGO-KEYMATALGO-ICV-LEN | compALGO-NAME

MODE := transport | tunnel | beet | ro | in_trigger

SA-DIR := in | out

FLAG-LIST := [ FLAG-LIST ] FLAG

SELECTOR := [ srcADDR[/PLEN] ] [ dstADDR[/PLEN] ] [ devDEV ] [ UPSPEC ]

UPSPEC := proto { PROTO | { tcp | udp | sctp | dccp } [ sportPORT ] [ dportPORT ] | { icmp | ipv6-icmp | mobility-header } [ typeNUMBER ] [ codeNUMBER ] | gre [ key { DOTTED-QUAD | NUMBER } ] }

LIMIT-LIST := [ LIMIT-LIST ] limitLIMIT

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 | espintcp } SPORTDPORTOADDR

EXTRA-FLAG-LIST := [ EXTRA-FLAG-LIST ] EXTRA-FLAG

EXTRA-FLAG := dont-encap-dscp | oseq-may-wrap

ip xfrm policy { add | update } SELECTORdirDIR [ ctxCTX ] [ markMARK [ maskMASK ] ] [ indexINDEX ] [ ptypePTYPE ] [ actionACTION ] [ priorityPRIORITY ] [ flagFLAG-LIST ] [ if_idIF-ID ] [ offload packet dev DEV ] [ LIMIT-LIST ] [ TMPL-LIST ]

ip xfrm policy { delete | get } { SELECTOR | indexINDEX } dirDIR [ ctxCTX ] [ markMARK [ maskMASK ] ] [ ptypePTYPE ] [ if_idIF-ID ]

ip [ -4 | -6 ] xfrm policy { deleteall | list } [ nosock ] [ SELECTOR ] [ dirDIR ] [ indexINDEX ] [ ptypePTYPE ] [ actionACTION ] [ priorityPRIORITY ] [ flagFLAG-LIST]

ip xfrm policy flush [ ptypePTYPE ]

ip xfrm policy count

ip xfrm policy set [ hthresh4LBITSRBITS ] [ hthresh6LBITSRBITS ]

ip xfrm policy setdefaultDIRACTION [ DIRACTION ] [ DIRACTION ]

ip xfrm policy getdefault

SELECTOR := [ srcADDR[/PLEN] ] [ dstADDR[/PLEN] ] [ devDEV ] [ UPSPEC ]

DIR := in | out | fwd

PTYPE := main | sub

ACTION := allow | block

FLAG-LIST := [ FLAG-LIST ] FLAG

FLAG := localok | icmp

LIMIT-LIST := [ LIMIT-LIST ] limitLIMIT

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 ] tmplTMPL

TMPL := ID [ modeMODE ] [ reqidREQID ] [ levelLEVEL ]

ID := [ srcADDR ] [ dstADDR ] [ protoXFRM-PROTO ] [ spiSPI ]

XFRM-PROTO := esp | ah | comp | route2 | hao

MODE := transport | tunnel | beet | ro | in_trigger

LEVEL := required | use

ip xfrm monitor [ all-nsid ] [ nokeys ] [ all | LISTofXFRM-OBJECTS ]

LISTofXFRM-OBJECTS := [ LISTofXFRM-OBJECTS ] XFRM-OBJECT

DESCRIPTION

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

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). Mobile IPv6 modes are route optimization (ro) and inbound trigger (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 network 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 protocols, 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, espinudp-nonike, or espintcp, using source port SPORT, destination port DPORT , and original address OADDR.
MARK: used to match xfrm policies and states
OUTPUT-MARK: used to set the output mark to influence the routing of the packets emitted by the state
IF-ID: xfrm interface identifier used to in both xfrm policies and states
DEV: Network interface name used to offload policies and states

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

nosock: filter (remove) all socket policies from the output.
SELECTOR: selects the traffic that will be controlled by the policy, based on the source address, the destination address, the network 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 protocols, 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, 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).
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). Mobile IPv6 modes are route optimization (ro) and inbound trigger (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

AUTHOR

Manpage revised by David Ward <[email protected]> Manpage revised by Christophe Gouault <[email protected]> Manpage revised by Nicolas Dichtel <[email protected]>

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