Family mptcp_pm netlink specification

Summary

Multipath TCP.

Operations

unspec

unused

value:

0

add-addr

Add endpoint

attribute-set:

endpoint

dont-validate:

[‘strict’]

flags:

[‘uns-admin-perm’]

do:

request

attributes:

[addr]

del-addr

Delete endpoint

attribute-set:

endpoint

dont-validate:

[‘strict’]

flags:

[‘uns-admin-perm’]

do:

request

attributes:

[addr]

get-addr

Get endpoint information

attribute-set:

attr

dont-validate:

[‘strict’]

flags:

[‘uns-admin-perm’]

do:

request

attributes:

[addr, token]

reply

attributes:

[addr]

dump:

reply

attributes:

[addr]

flush-addrs

flush addresses

attribute-set:

endpoint

dont-validate:

[‘strict’]

flags:

[‘uns-admin-perm’]

do:

request

attributes:

[addr]

set-limits

Set protocol limits

attribute-set:

attr

dont-validate:

[‘strict’]

flags:

[‘uns-admin-perm’]

do:

request

attributes:

[rcv-add-addrs, subflows]

get-limits

Get protocol limits

attribute-set:

attr

dont-validate:

[‘strict’]

do:

request

attributes:

[rcv-add-addrs, subflows]

reply

attributes:

[rcv-add-addrs, subflows]

set-flags

Change endpoint flags

attribute-set:

attr

dont-validate:

[‘strict’]

flags:

[‘uns-admin-perm’]

do:

request

attributes:

[addr, token, addr-remote]

announce

announce new sf

attribute-set:

attr

dont-validate:

[‘strict’]

flags:

[‘uns-admin-perm’]

do:

request

attributes:

[addr, token]

remove

announce removal

attribute-set:

attr

dont-validate:

[‘strict’]

flags:

[‘uns-admin-perm’]

do:

request

attributes:

[token, loc-id]

subflow-create

todo

attribute-set:

attr

dont-validate:

[‘strict’]

flags:

[‘uns-admin-perm’]

do:

request

attributes:

[addr, token, addr-remote]

subflow-destroy

todo

attribute-set:

attr

dont-validate:

[‘strict’]

flags:

[‘uns-admin-perm’]

do:

request

attributes:

[addr, token, addr-remote]

Definitions

event-type

type:

enum

enum-name:

mptcp-event-type

name-prefix:

mptcp-event-

entries:

unspec:

unused event

created:

token, family, saddr4 | saddr6, daddr4 | daddr6, sport, dport A new MPTCP connection has been created. It is the good time to allocate memory and send ADD_ADDR if needed. Depending on the traffic-patterns it can take a long time until the MPTCP_EVENT_ESTABLISHED is sent.

established:

token, family, saddr4 | saddr6, daddr4 | daddr6, sport, dport A MPTCP connection is established (can start new subflows).

closed:

token A MPTCP connection has stopped.

announced:

token, rem_id, family, daddr4 | daddr6 [, dport] A new address has been announced by the peer.

removed:

token, rem_id An address has been lost by the peer.

sub-established:

token, family, loc_id, rem_id, saddr4 | saddr6, daddr4 | daddr6, sport, dport, backup, if_idx [, error] A new subflow has been established. ‘error’ should not be set.

sub-closed:

token, family, loc_id, rem_id, saddr4 | saddr6, daddr4 | daddr6, sport, dport, backup, if_idx [, error] A subflow has been closed. An error (copy of sk_err) could be set if an error has been detected for this subflow.

sub-priority:

token, family, loc_id, rem_id, saddr4 | saddr6, daddr4 | daddr6, sport, dport, backup, if_idx [, error] The priority of a subflow has changed. ‘error’ should not be set.

listener-created:

family, sport, saddr4 | saddr6 A new PM listener is created.

listener-closed:

family, sport, saddr4 | saddr6 A PM listener is closed.

Attribute sets

address

unspec (unused)

value:

0

family (u16)

id (u8)

addr4 (u32)

byte-order:

big-endian

addr6 (binary)

port (u16)

byte-order:

big-endian

flags (u32)

if-idx (s32)

subflow-attribute

unspec (unused)

value:

0

token-rem (u32)

token-loc (u32)

relwrite-seq (u32)

map-seq (u64)

map-sfseq (u32)

ssn-offset (u32)

map-datalen (u16)

flags (u32)

id-rem (u8)

id-loc (u8)

pad (pad)

endpoint

addr (nest)

nested-attributes:

address

attr

unspec (unused)

value:

0

addr (nest)

nested-attributes:

address

rcv-add-addrs (u32)

subflows (u32)

token (u32)

loc-id (u8)

addr-remote (nest)

nested-attributes:

address

event-attr

unspec (unused)

value:

0

token (u32)

family (u16)

loc-id (u8)

rem-id (u8)

saddr4 (u32)

byte-order:

big-endian

saddr6 (binary)

daddr4 (u32)

byte-order:

big-endian

daddr6 (binary)

sport (u16)

byte-order:

big-endian

dport (u16)

byte-order:

big-endian

backup (u8)

error (u8)

flags (u16)

timeout (u32)

if_idx (u32)

reset-reason (u32)

reset-flags (u32)

server-side (u8)