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
|
// SPDX-License-Identifier: GPL-2.0-or-later
#include <net/genetlink.h>
#include <uapi/linux/mrp_bridge.h>
#include "br_private.h"
#include "br_private_mrp.h"
static const struct nla_policy br_mrp_policy[IFLA_BRIDGE_MRP_MAX + 1] = {
[IFLA_BRIDGE_MRP_UNSPEC] = { .type = NLA_REJECT },
[IFLA_BRIDGE_MRP_INSTANCE] = { .type = NLA_NESTED },
[IFLA_BRIDGE_MRP_PORT_STATE] = { .type = NLA_NESTED },
[IFLA_BRIDGE_MRP_PORT_ROLE] = { .type = NLA_NESTED },
[IFLA_BRIDGE_MRP_RING_STATE] = { .type = NLA_NESTED },
[IFLA_BRIDGE_MRP_RING_ROLE] = { .type = NLA_NESTED },
[IFLA_BRIDGE_MRP_START_TEST] = { .type = NLA_NESTED },
};
static const struct nla_policy
br_mrp_instance_policy[IFLA_BRIDGE_MRP_INSTANCE_MAX + 1] = {
[IFLA_BRIDGE_MRP_INSTANCE_UNSPEC] = { .type = NLA_REJECT },
[IFLA_BRIDGE_MRP_INSTANCE_RING_ID] = { .type = NLA_U32 },
[IFLA_BRIDGE_MRP_INSTANCE_P_IFINDEX] = { .type = NLA_U32 },
[IFLA_BRIDGE_MRP_INSTANCE_S_IFINDEX] = { .type = NLA_U32 },
[IFLA_BRIDGE_MRP_INSTANCE_PRIO] = { .type = NLA_U16 },
};
static int br_mrp_instance_parse(struct net_bridge *br, struct nlattr *attr,
int cmd, struct netlink_ext_ack *extack)
{
struct nlattr *tb[IFLA_BRIDGE_MRP_INSTANCE_MAX + 1];
struct br_mrp_instance inst;
int err;
err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_INSTANCE_MAX, attr,
br_mrp_instance_policy, extack);
if (err)
return err;
if (!tb[IFLA_BRIDGE_MRP_INSTANCE_RING_ID] ||
!tb[IFLA_BRIDGE_MRP_INSTANCE_P_IFINDEX] ||
!tb[IFLA_BRIDGE_MRP_INSTANCE_S_IFINDEX]) {
NL_SET_ERR_MSG_MOD(extack,
"Missing attribute: RING_ID or P_IFINDEX or S_IFINDEX");
return -EINVAL;
}
memset(&inst, 0, sizeof(inst));
inst.ring_id = nla_get_u32(tb[IFLA_BRIDGE_MRP_INSTANCE_RING_ID]);
inst.p_ifindex = nla_get_u32(tb[IFLA_BRIDGE_MRP_INSTANCE_P_IFINDEX]);
inst.s_ifindex = nla_get_u32(tb[IFLA_BRIDGE_MRP_INSTANCE_S_IFINDEX]);
inst.prio = MRP_DEFAULT_PRIO;
if (tb[IFLA_BRIDGE_MRP_INSTANCE_PRIO])
inst.prio = nla_get_u16(tb[IFLA_BRIDGE_MRP_INSTANCE_PRIO]);
if (cmd == RTM_SETLINK)
return br_mrp_add(br, &inst);
else
return br_mrp_del(br, &inst);
return 0;
}
static const struct nla_policy
br_mrp_port_state_policy[IFLA_BRIDGE_MRP_PORT_STATE_MAX + 1] = {
[IFLA_BRIDGE_MRP_PORT_STATE_UNSPEC] = { .type = NLA_REJECT },
[IFLA_BRIDGE_MRP_PORT_STATE_STATE] = { .type = NLA_U32 },
};
static int br_mrp_port_state_parse(struct net_bridge_port *p,
struct nlattr *attr,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[IFLA_BRIDGE_MRP_PORT_STATE_MAX + 1];
enum br_mrp_port_state_type state;
int err;
err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_PORT_STATE_MAX, attr,
br_mrp_port_state_policy, extack);
if (err)
return err;
if (!tb[IFLA_BRIDGE_MRP_PORT_STATE_STATE]) {
NL_SET_ERR_MSG_MOD(extack, "Missing attribute: STATE");
return -EINVAL;
}
state = nla_get_u32(tb[IFLA_BRIDGE_MRP_PORT_STATE_STATE]);
return br_mrp_set_port_state(p, state);
}
static const struct nla_policy
br_mrp_port_role_policy[IFLA_BRIDGE_MRP_PORT_ROLE_MAX + 1] = {
[IFLA_BRIDGE_MRP_PORT_ROLE_UNSPEC] = { .type = NLA_REJECT },
[IFLA_BRIDGE_MRP_PORT_ROLE_ROLE] = { .type = NLA_U32 },
};
static int br_mrp_port_role_parse(struct net_bridge_port *p,
struct nlattr *attr,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[IFLA_BRIDGE_MRP_PORT_ROLE_MAX + 1];
enum br_mrp_port_role_type role;
int err;
err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_PORT_ROLE_MAX, attr,
br_mrp_port_role_policy, extack);
if (err)
return err;
if (!tb[IFLA_BRIDGE_MRP_PORT_ROLE_ROLE]) {
NL_SET_ERR_MSG_MOD(extack, "Missing attribute: ROLE");
return -EINVAL;
}
role = nla_get_u32(tb[IFLA_BRIDGE_MRP_PORT_ROLE_ROLE]);
return br_mrp_set_port_role(p, role);
}
static const struct nla_policy
br_mrp_ring_state_policy[IFLA_BRIDGE_MRP_RING_STATE_MAX + 1] = {
[IFLA_BRIDGE_MRP_RING_STATE_UNSPEC] = { .type = NLA_REJECT },
[IFLA_BRIDGE_MRP_RING_STATE_RING_ID] = { .type = NLA_U32 },
[IFLA_BRIDGE_MRP_RING_STATE_STATE] = { .type = NLA_U32 },
};
static int br_mrp_ring_state_parse(struct net_bridge *br, struct nlattr *attr,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[IFLA_BRIDGE_MRP_RING_STATE_MAX + 1];
struct br_mrp_ring_state state;
int err;
err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_RING_STATE_MAX, attr,
br_mrp_ring_state_policy, extack);
if (err)
return err;
if (!tb[IFLA_BRIDGE_MRP_RING_STATE_RING_ID] ||
!tb[IFLA_BRIDGE_MRP_RING_STATE_STATE]) {
NL_SET_ERR_MSG_MOD(extack,
"Missing attribute: RING_ID or STATE");
return -EINVAL;
}
memset(&state, 0x0, sizeof(state));
state.ring_id = nla_get_u32(tb[IFLA_BRIDGE_MRP_RING_STATE_RING_ID]);
state.ring_state = nla_get_u32(tb[IFLA_BRIDGE_MRP_RING_STATE_STATE]);
return br_mrp_set_ring_state(br, &state);
}
static const struct nla_policy
br_mrp_ring_role_policy[IFLA_BRIDGE_MRP_RING_ROLE_MAX + 1] = {
[IFLA_BRIDGE_MRP_RING_ROLE_UNSPEC] = { .type = NLA_REJECT },
[IFLA_BRIDGE_MRP_RING_ROLE_RING_ID] = { .type = NLA_U32 },
[IFLA_BRIDGE_MRP_RING_ROLE_ROLE] = { .type = NLA_U32 },
};
static int br_mrp_ring_role_parse(struct net_bridge *br, struct nlattr *attr,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[IFLA_BRIDGE_MRP_RING_ROLE_MAX + 1];
struct br_mrp_ring_role role;
int err;
err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_RING_ROLE_MAX, attr,
br_mrp_ring_role_policy, extack);
if (err)
return err;
if (!tb[IFLA_BRIDGE_MRP_RING_ROLE_RING_ID] ||
!tb[IFLA_BRIDGE_MRP_RING_ROLE_ROLE]) {
NL_SET_ERR_MSG_MOD(extack,
"Missing attribute: RING_ID or ROLE");
return -EINVAL;
}
memset(&role, 0x0, sizeof(role));
role.ring_id = nla_get_u32(tb[IFLA_BRIDGE_MRP_RING_ROLE_RING_ID]);
role.ring_role = nla_get_u32(tb[IFLA_BRIDGE_MRP_RING_ROLE_ROLE]);
return br_mrp_set_ring_role(br, &role);
}
static const struct nla_policy
br_mrp_start_test_policy[IFLA_BRIDGE_MRP_START_TEST_MAX + 1] = {
[IFLA_BRIDGE_MRP_START_TEST_UNSPEC] = { .type = NLA_REJECT },
[IFLA_BRIDGE_MRP_START_TEST_RING_ID] = { .type = NLA_U32 },
[IFLA_BRIDGE_MRP_START_TEST_INTERVAL] = { .type = NLA_U32 },
[IFLA_BRIDGE_MRP_START_TEST_MAX_MISS] = { .type = NLA_U32 },
[IFLA_BRIDGE_MRP_START_TEST_PERIOD] = { .type = NLA_U32 },
[IFLA_BRIDGE_MRP_START_TEST_MONITOR] = { .type = NLA_U32 },
};
static int br_mrp_start_test_parse(struct net_bridge *br, struct nlattr *attr,
struct netlink_ext_ack *extack)
{
struct nlattr *tb[IFLA_BRIDGE_MRP_START_TEST_MAX + 1];
struct br_mrp_start_test test;
int err;
err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_START_TEST_MAX, attr,
br_mrp_start_test_policy, extack);
if (err)
return err;
if (!tb[IFLA_BRIDGE_MRP_START_TEST_RING_ID] ||
!tb[IFLA_BRIDGE_MRP_START_TEST_INTERVAL] ||
!tb[IFLA_BRIDGE_MRP_START_TEST_MAX_MISS] ||
!tb[IFLA_BRIDGE_MRP_START_TEST_PERIOD]) {
NL_SET_ERR_MSG_MOD(extack,
"Missing attribute: RING_ID or INTERVAL or MAX_MISS or PERIOD");
return -EINVAL;
}
memset(&test, 0x0, sizeof(test));
test.ring_id = nla_get_u32(tb[IFLA_BRIDGE_MRP_START_TEST_RING_ID]);
test.interval = nla_get_u32(tb[IFLA_BRIDGE_MRP_START_TEST_INTERVAL]);
test.max_miss = nla_get_u32(tb[IFLA_BRIDGE_MRP_START_TEST_MAX_MISS]);
test.period = nla_get_u32(tb[IFLA_BRIDGE_MRP_START_TEST_PERIOD]);
test.monitor = false;
if (tb[IFLA_BRIDGE_MRP_START_TEST_MONITOR])
test.monitor =
nla_get_u32(tb[IFLA_BRIDGE_MRP_START_TEST_MONITOR]);
return br_mrp_start_test(br, &test);
}
int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p,
struct nlattr *attr, int cmd, struct netlink_ext_ack *extack)
{
struct nlattr *tb[IFLA_BRIDGE_MRP_MAX + 1];
int err;
/* When this function is called for a port then the br pointer is
* invalid, therefor set the br to point correctly
*/
if (p)
br = p->br;
if (br->stp_enabled != BR_NO_STP) {
NL_SET_ERR_MSG_MOD(extack, "MRP can't be enabled if STP is already enabled");
return -EINVAL;
}
err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_MAX, attr,
br_mrp_policy, extack);
if (err)
return err;
if (tb[IFLA_BRIDGE_MRP_INSTANCE]) {
err = br_mrp_instance_parse(br, tb[IFLA_BRIDGE_MRP_INSTANCE],
cmd, extack);
if (err)
return err;
}
if (tb[IFLA_BRIDGE_MRP_PORT_STATE]) {
err = br_mrp_port_state_parse(p, tb[IFLA_BRIDGE_MRP_PORT_STATE],
extack);
if (err)
return err;
}
if (tb[IFLA_BRIDGE_MRP_PORT_ROLE]) {
err = br_mrp_port_role_parse(p, tb[IFLA_BRIDGE_MRP_PORT_ROLE],
extack);
if (err)
return err;
}
if (tb[IFLA_BRIDGE_MRP_RING_STATE]) {
err = br_mrp_ring_state_parse(br,
tb[IFLA_BRIDGE_MRP_RING_STATE],
extack);
if (err)
return err;
}
if (tb[IFLA_BRIDGE_MRP_RING_ROLE]) {
err = br_mrp_ring_role_parse(br, tb[IFLA_BRIDGE_MRP_RING_ROLE],
extack);
if (err)
return err;
}
if (tb[IFLA_BRIDGE_MRP_START_TEST]) {
err = br_mrp_start_test_parse(br,
tb[IFLA_BRIDGE_MRP_START_TEST],
extack);
if (err)
return err;
}
return 0;
}
int br_mrp_port_open(struct net_device *dev, u8 loc)
{
struct net_bridge_port *p;
int err = 0;
p = br_port_get_rcu(dev);
if (!p) {
err = -EINVAL;
goto out;
}
if (loc)
p->flags |= BR_MRP_LOST_CONT;
else
p->flags &= ~BR_MRP_LOST_CONT;
br_ifinfo_notify(RTM_NEWLINK, NULL, p);
out:
return err;
}
|
