summaryrefslogtreecommitdiff
path: root/Documentation/netlink/specs/mptcp_pm.yaml
blob: af525ed2979234e90e90aed24005c79589c8dc35 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
# SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)

name: mptcp_pm
protocol: genetlink-legacy
doc: Multipath TCP.

c-family-name: mptcp-pm-name
c-version-name: mptcp-pm-ver
max-by-define: true
kernel-policy: per-op
cmd-cnt-name: --mptcp-pm-cmd-after-last

definitions:
  -
    type: enum
    name: event-type
    enum-name: mptcp-event-type
    name-prefix: mptcp-event-
    entries:
     -
      name: unspec
      doc: unused event
     -
      name: created
      doc:
        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.
     -
      name: established
      doc:
        token, family, saddr4 | saddr6, daddr4 | daddr6, sport, dport
        A MPTCP connection is established (can start new subflows).
     -
      name: closed
      doc:
        token
        A MPTCP connection has stopped.
     -
      name: announced
      value: 6
      doc:
        token, rem_id, family, daddr4 | daddr6 [, dport]
        A new address has been announced by the peer.
     -
      name: removed
      doc:
        token, rem_id
        An address has been lost by the peer.
     -
      name: sub-established
      value: 10
      doc:
        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.
     -
      name: sub-closed
      doc:
        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.
     -
      name: sub-priority
      value: 13
      doc:
        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.
     -
      name: listener-created
      value: 15
      doc:
        family, sport, saddr4 | saddr6
        A new PM listener is created.
     -
      name: listener-closed
      doc:
        family, sport, saddr4 | saddr6
        A PM listener is closed.

attribute-sets:
  -
    name: address
    name-prefix: mptcp-pm-addr-attr-
    attributes:
      -
        name: unspec
        type: unused
        value: 0
      -
        name: family
        type: u16
      -
        name: id
        type: u8
      -
        name: addr4
        type: u32
        byte-order: big-endian
      -
        name: addr6
        type: binary
        checks:
          exact-len: 16
      -
        name: port
        type: u16
        byte-order: big-endian
      -
        name: flags
        type: u32
      -
        name: if-idx
        type: s32
  -
    name: subflow-attribute
    name-prefix: mptcp-subflow-attr-
    attributes:
      -
        name: unspec
        type: unused
        value: 0
      -
        name: token-rem
        type: u32
      -
        name: token-loc
        type: u32
      -
        name: relwrite-seq
        type: u32
      -
        name: map-seq
        type: u64
      -
        name: map-sfseq
        type: u32
      -
        name: ssn-offset
        type: u32
      -
        name: map-datalen
        type: u16
      -
        name: flags
        type: u32
      -
        name: id-rem
        type: u8
      -
        name: id-loc
        type: u8
      -
        name: pad
        type: pad
  -
    name: endpoint
    name-prefix: mptcp-pm-endpoint-
    attributes:
      -
        name: addr
        type: nest
        nested-attributes: address
  -
    name: attr
    name-prefix: mptcp-pm-attr-
    attr-cnt-name: --mptcp-attr-after-last
    attributes:
      -
        name: unspec
        type: unused
        value: 0
      -
        name: addr
        type: nest
        nested-attributes: address
      -
        name: rcv-add-addrs
        type: u32
      -
        name: subflows
        type: u32
      -
        name: token
        type: u32
      -
        name: loc-id
        type: u8
      -
        name: addr-remote
        type: nest
        nested-attributes: address
  -
    name: event-attr
    enum-name: mptcp-event-attr
    name-prefix: mptcp-attr-
    attributes:
      -
        name: unspec
        type: unused
        value: 0
      -
        name: token
        type: u32
      -
        name: family
        type: u16
      -
        name: loc-id
        type: u8
      -
        name: rem-id
        type: u8
      -
        name: saddr4
        type: u32
        byte-order: big-endian
      -
        name: saddr6
        type: binary
        checks:
          min-len: 16
      -
        name: daddr4
        type: u32
        byte-order: big-endian
      -
        name: daddr6
        type: binary
        checks:
          min-len: 16
      -
        name: sport
        type: u16
        byte-order: big-endian
      -
        name: dport
        type: u16
        byte-order: big-endian
      -
        name: backup
        type: u8
      -
        name: error
        type: u8
      -
        name: flags
        type: u16
      -
        name: timeout
        type: u32
      -
        name: if_idx
        type: u32
      -
        name: reset-reason
        type: u32
      -
        name: reset-flags
        type: u32
      -
        name: server-side
        type: u8

operations:
  list:
    -
      name: unspec
      doc: unused
      value: 0
    -
      name: add-addr
      doc: Add endpoint
      attribute-set: endpoint
      dont-validate: [ strict ]
      flags: [ uns-admin-perm ]
      do: &add-addr-attrs
        request:
          attributes:
            - addr
    -
      name: del-addr
      doc: Delete endpoint
      attribute-set: endpoint
      dont-validate: [ strict ]
      flags: [ uns-admin-perm ]
      do: *add-addr-attrs
    -
      name: get-addr
      doc: Get endpoint information
      attribute-set: attr
      dont-validate: [ strict ]
      flags: [ uns-admin-perm ]
      do: &get-addr-attrs
        request:
          attributes:
           - addr
           - token
        reply:
          attributes:
           - addr
      dump:
        reply:
         attributes:
           - addr
    -
      name:  flush-addrs
      doc: flush addresses
      attribute-set: endpoint
      dont-validate: [ strict ]
      flags: [ uns-admin-perm ]
      do: *add-addr-attrs
    -
      name: set-limits
      doc: Set protocol limits
      attribute-set: attr
      dont-validate: [ strict ]
      flags: [ uns-admin-perm ]
      do: &mptcp-limits
        request:
          attributes:
            - rcv-add-addrs
            - subflows
    -
      name: get-limits
      doc: Get protocol limits
      attribute-set: attr
      dont-validate: [ strict ]
      do: &mptcp-get-limits
        request:
           attributes:
            - rcv-add-addrs
            - subflows
        reply:
          attributes:
            - rcv-add-addrs
            - subflows
    -
      name: set-flags
      doc: Change endpoint flags
      attribute-set: attr
      dont-validate: [ strict ]
      flags: [ uns-admin-perm ]
      do: &mptcp-set-flags
        request:
          attributes:
            - addr
            - token
            - addr-remote
    -
      name: announce
      doc: announce new sf
      attribute-set: attr
      dont-validate: [ strict ]
      flags: [ uns-admin-perm ]
      do: &announce-add
        request:
          attributes:
            - addr
            - token
    -
      name: remove
      doc: announce removal
      attribute-set: attr
      dont-validate: [ strict ]
      flags: [ uns-admin-perm ]
      do:
        request:
         attributes:
           - token
           - loc-id
    -
      name: subflow-create
      doc: todo
      attribute-set: attr
      dont-validate: [ strict ]
      flags: [ uns-admin-perm ]
      do: &sf-create
        request:
          attributes:
            - addr
            - token
            - addr-remote
    -
      name: subflow-destroy
      doc: todo
      attribute-set: attr
      dont-validate: [ strict ]
      flags: [ uns-admin-perm ]
      do: *sf-create