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net: bridge: mcast: use the proper multicast context when dumping router ports
[linux-block.git] / net / bridge / br_vlan_options.c
CommitLineData
7a53e718
NA		 1// SPDX-License-Identifier: GPL-2.0-only
2// Copyright (c) 2020, Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
3#include <linux/kernel.h>
4#include <linux/netdevice.h>
5#include <linux/rtnetlink.h>
6#include <linux/slab.h>
188c67dd 7#include <net/ip_tunnels.h>
7a53e718
NA		 8
9#include "br_private.h"
188c67dd
NA		 10#include "br_private_tunnel.h"
11
12static bool __vlan_tun_put(struct sk_buff *skb, const struct net_bridge_vlan *v)
13{
14 __be32 tid = tunnel_id_to_key32(v->tinfo.tunnel_id);
fa388f29 15 struct nlattr *nest;
188c67dd
NA		 16
17 if (!v->tinfo.tunnel_dst)
18 return true;
19
fa388f29
NA		 20 nest = nla_nest_start(skb, BRIDGE_VLANDB_ENTRY_TUNNEL_INFO);
21 if (!nest)
22 return false;
23 if (nla_put_u32(skb, BRIDGE_VLANDB_TINFO_ID, be32_to_cpu(tid))) {
24 nla_nest_cancel(skb, nest);
25 return false;
26 }
27 nla_nest_end(skb, nest);
28
29 return true;
188c67dd
NA		 30}
31
32static bool __vlan_tun_can_enter_range(const struct net_bridge_vlan *v_curr,
33 const struct net_bridge_vlan *range_end)
34{
35 return (!v_curr->tinfo.tunnel_dst && !range_end->tinfo.tunnel_dst) ||
36 vlan_tunid_inrange(v_curr, range_end);
37}
7a53e718 38
99f7c5e0
NA		 39/* check if the options' state of v_curr allow it to enter the range */
40bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr,
41 const struct net_bridge_vlan *range_end)
7a53e718 42{
188c67dd
NA		 43 return v_curr->state == range_end->state &&
44 __vlan_tun_can_enter_range(v_curr, range_end);
7a53e718
NA		 45}
46
47bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v)
48{
a580c76d 49 return !nla_put_u8(skb, BRIDGE_VLANDB_ENTRY_STATE,
188c67dd
NA		 50 br_vlan_get_state(v)) &&
51 __vlan_tun_put(skb, v);
7a53e718
NA		 52}
53
54size_t br_vlan_opts_nl_size(void)
55{
188c67dd 56 return nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_ENTRY_STATE */
fa388f29
NA		 57 + nla_total_size(0) /* BRIDGE_VLANDB_ENTRY_TUNNEL_INFO */
58 + nla_total_size(sizeof(u32)); /* BRIDGE_VLANDB_TINFO_ID */
a580c76d
NA		 59}
60
61static int br_vlan_modify_state(struct net_bridge_vlan_group *vg,
62 struct net_bridge_vlan *v,
63 u8 state,
64 bool *changed,
65 struct netlink_ext_ack *extack)
66{
67 struct net_bridge *br;
68
69 ASSERT_RTNL();
70
71 if (state > BR_STATE_BLOCKING) {
72 NL_SET_ERR_MSG_MOD(extack, "Invalid vlan state");
73 return -EINVAL;
74 }
75
76 if (br_vlan_is_brentry(v))
77 br = v->br;
78 else
79 br = v->port->br;
80
81 if (br->stp_enabled == BR_KERNEL_STP) {
82 NL_SET_ERR_MSG_MOD(extack, "Can't modify vlan state when using kernel STP");
83 return -EBUSY;
84 }
85
86 if (v->state == state)
87 return 0;
88
89 if (v->vid == br_get_pvid(vg))
90 br_vlan_set_pvid_state(vg, state);
91
92 br_vlan_set_state(v, state);
93 *changed = true;
94
7a53e718
NA		 95 return 0;
96}
a5d29ae2 97
fa388f29
NA		 98static const struct nla_policy br_vlandb_tinfo_pol[BRIDGE_VLANDB_TINFO_MAX + 1] = {
99 [BRIDGE_VLANDB_TINFO_ID] = { .type = NLA_U32 },
c443758b 100 [BRIDGE_VLANDB_TINFO_CMD] = { .type = NLA_U32 },
fa388f29
NA		 101};
102
569da082
NA		 103static int br_vlan_modify_tunnel(const struct net_bridge_port *p,
104 struct net_bridge_vlan *v,
105 struct nlattr **tb,
106 bool *changed,
107 struct netlink_ext_ack *extack)
108{
fa388f29 109 struct nlattr *tun_tb[BRIDGE_VLANDB_TINFO_MAX + 1], *attr;
569da082 110 struct bridge_vlan_info *vinfo;
c443758b
NA		 111 u32 tun_id = 0;
112 int cmd, err;
569da082
NA		 113
114 if (!p) {
115 NL_SET_ERR_MSG_MOD(extack, "Can't modify tunnel mapping of non-port vlans");
116 return -EINVAL;
117 }
118 if (!(p->flags & BR_VLAN_TUNNEL)) {
119 NL_SET_ERR_MSG_MOD(extack, "Port doesn't have tunnel flag set");
120 return -EINVAL;
121 }
122
fa388f29
NA		 123 attr = tb[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO];
124 err = nla_parse_nested(tun_tb, BRIDGE_VLANDB_TINFO_MAX, attr,
125 br_vlandb_tinfo_pol, extack);
126 if (err)
127 return err;
128
c443758b
NA		 129 if (!tun_tb[BRIDGE_VLANDB_TINFO_CMD]) {
130 NL_SET_ERR_MSG_MOD(extack, "Missing tunnel command attribute");
fa388f29
NA		 131 return -ENOENT;
132 }
c443758b
NA		 133 cmd = nla_get_u32(tun_tb[BRIDGE_VLANDB_TINFO_CMD]);
134 switch (cmd) {
135 case RTM_SETLINK:
136 if (!tun_tb[BRIDGE_VLANDB_TINFO_ID]) {
137 NL_SET_ERR_MSG_MOD(extack, "Missing tunnel id attribute");
138 return -ENOENT;
139 }
140 /* when working on vlan ranges this is the starting tunnel id */
141 tun_id = nla_get_u32(tun_tb[BRIDGE_VLANDB_TINFO_ID]);
142 /* vlan info attr is guaranteed by br_vlan_rtm_process_one */
143 vinfo = nla_data(tb[BRIDGE_VLANDB_ENTRY_INFO]);
144 /* tunnel ids are mapped to each vlan in increasing order,
145 * the starting vlan is in BRIDGE_VLANDB_ENTRY_INFO and v is the
146 * current vlan, so we compute: tun_id + v - vinfo->vid
147 */
148 tun_id += v->vid - vinfo->vid;
149 break;
150 case RTM_DELLINK:
151 break;
152 default:
153 NL_SET_ERR_MSG_MOD(extack, "Unsupported tunnel command");
154 return -EINVAL;
155 }
156
157 return br_vlan_tunnel_info(p, cmd, v->vid, tun_id, changed);
569da082
NA		 158}
159
a5d29ae2
NA		 160static int br_vlan_process_one_opts(const struct net_bridge *br,
161 const struct net_bridge_port *p,
162 struct net_bridge_vlan_group *vg,
163 struct net_bridge_vlan *v,
164 struct nlattr **tb,
165 bool *changed,
166 struct netlink_ext_ack *extack)
167{
a580c76d
NA		 168 int err;
169
a5d29ae2 170 *changed = false;
a580c76d
NA		 171 if (tb[BRIDGE_VLANDB_ENTRY_STATE]) {
172 u8 state = nla_get_u8(tb[BRIDGE_VLANDB_ENTRY_STATE]);
173
174 err = br_vlan_modify_state(vg, v, state, changed, extack);
175 if (err)
176 return err;
177 }
fa388f29 178 if (tb[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO]) {
569da082
NA		 179 err = br_vlan_modify_tunnel(p, v, tb, changed, extack);
180 if (err)
181 return err;
182 }
a580c76d 183
a5d29ae2
NA		 184 return 0;
185}
186
187int br_vlan_process_options(const struct net_bridge *br,
188 const struct net_bridge_port *p,
189 struct net_bridge_vlan *range_start,
190 struct net_bridge_vlan *range_end,
191 struct nlattr **tb,
192 struct netlink_ext_ack *extack)
193{
194 struct net_bridge_vlan *v, *curr_start = NULL, *curr_end = NULL;
195 struct net_bridge_vlan_group *vg;
196 int vid, err = 0;
197 u16 pvid;
198
199 if (p)
200 vg = nbp_vlan_group(p);
201 else
202 vg = br_vlan_group(br);
203
204 if (!range_start || !br_vlan_should_use(range_start)) {
205 NL_SET_ERR_MSG_MOD(extack, "Vlan range start doesn't exist, can't process options");
206 return -ENOENT;
207 }
208 if (!range_end || !br_vlan_should_use(range_end)) {
209 NL_SET_ERR_MSG_MOD(extack, "Vlan range end doesn't exist, can't process options");
210 return -ENOENT;
211 }
212
213 pvid = br_get_pvid(vg);
214 for (vid = range_start->vid; vid <= range_end->vid; vid++) {
215 bool changed = false;
216
217 v = br_vlan_find(vg, vid);
218 if (!v || !br_vlan_should_use(v)) {
219 NL_SET_ERR_MSG_MOD(extack, "Vlan in range doesn't exist, can't process options");
220 err = -ENOENT;
221 break;
222 }
223
224 err = br_vlan_process_one_opts(br, p, vg, v, tb, &changed,
225 extack);
226 if (err)
227 break;
228
229 if (changed) {
230 /* vlan options changed, check for range */
231 if (!curr_start) {
232 curr_start = v;
233 curr_end = v;
234 continue;
235 }
236
237 if (v->vid == pvid ||
238 !br_vlan_can_enter_range(v, curr_end)) {
239 br_vlan_notify(br, p, curr_start->vid,
240 curr_end->vid, RTM_NEWVLAN);
241 curr_start = v;
242 }
243 curr_end = v;
244 } else {
245 /* nothing changed and nothing to notify yet */
246 if (!curr_start)
247 continue;
248
249 br_vlan_notify(br, p, curr_start->vid, curr_end->vid,
250 RTM_NEWVLAN);
251 curr_start = NULL;
252 curr_end = NULL;
253 }
254 }
255 if (curr_start)
256 br_vlan_notify(br, p, curr_start->vid, curr_end->vid,
257 RTM_NEWVLAN);
258
259 return err;
260}
47ecd2db 261
743a53d9
NA		 262bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr,
263 const struct net_bridge_vlan *r_end)
264{
9dee572c
NA		 265 return v_curr->vid - r_end->vid == 1 &&
266 ((v_curr->priv_flags ^ r_end->priv_flags) &
df271cd6
NA		 267 BR_VLFLAG_GLOBAL_MCAST_ENABLED) == 0 &&
268 br_multicast_ctx_options_equal(&v_curr->br_mcast_ctx,
269 &r_end->br_mcast_ctx);
743a53d9
NA		 270}
271
272bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range,
273 const struct net_bridge_vlan *v_opts)
274{
77f6abab 275 u64 clockval __maybe_unused;
743a53d9
NA		 276 struct nlattr *nest;
277
278 nest = nla_nest_start(skb, BRIDGE_VLANDB_GLOBAL_OPTIONS);
279 if (!nest)
280 return false;
281
282 if (nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_ID, vid))
283 goto out_err;
284
285 if (vid_range && vid < vid_range &&
286 nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_RANGE, vid_range))
287 goto out_err;
288
9dee572c
NA		 289#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
290 if (nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING,
df271cd6
NA		 291 !!(v_opts->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED)) ||
292 nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION,
931ba87d
NA		 293 v_opts->br_mcast_ctx.multicast_igmp_version) ||
294 nla_put_u32(skb, BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT,
50725f6e
NA		 295 v_opts->br_mcast_ctx.multicast_last_member_count) ||
296 nla_put_u32(skb, BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT,
62938182
NA		 297 v_opts->br_mcast_ctx.multicast_startup_query_count) ||
298 nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERIER,
a97df080
NA		 299 v_opts->br_mcast_ctx.multicast_querier) ||
300 nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_ROUTER,
301 v_opts->br_mcast_ctx.multicast_router))
df271cd6
NA		 302 goto out_err;
303
77f6abab
NA		 304 clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_last_member_interval);
305 if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL,
306 clockval, BRIDGE_VLANDB_GOPTS_PAD))
307 goto out_err;
2da0aea2
NA		 308 clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_membership_interval);
309 if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL,
310 clockval, BRIDGE_VLANDB_GOPTS_PAD))
311 goto out_err;
cd9269d4
NA		 312 clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_querier_interval);
313 if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL,
314 clockval, BRIDGE_VLANDB_GOPTS_PAD))
315 goto out_err;
d6c08aba
NA		 316 clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_query_interval);
317 if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL,
318 clockval, BRIDGE_VLANDB_GOPTS_PAD))
319 goto out_err;
42521450
NA		 320 clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_query_response_interval);
321 if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL,
322 clockval, BRIDGE_VLANDB_GOPTS_PAD))
323 goto out_err;
941121ee
NA		 324 clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_startup_query_interval);
325 if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL,
326 clockval, BRIDGE_VLANDB_GOPTS_PAD))
327 goto out_err;
77f6abab 328
df271cd6
NA		 329#if IS_ENABLED(CONFIG_IPV6)
330 if (nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION,
331 v_opts->br_mcast_ctx.multicast_mld_version))
9dee572c 332 goto out_err;
df271cd6 333#endif
9dee572c
NA		 334#endif
335
743a53d9
NA		 336 nla_nest_end(skb, nest);
337
338 return true;
339
340out_err:
341 nla_nest_cancel(skb, nest);
342 return false;
343}
344
9aba624d
NA		 345static size_t rtnl_vlan_global_opts_nlmsg_size(void)
346{
347 return NLMSG_ALIGN(sizeof(struct br_vlan_msg))
348 + nla_total_size(0) /* BRIDGE_VLANDB_GLOBAL_OPTIONS */
349 + nla_total_size(sizeof(u16)) /* BRIDGE_VLANDB_GOPTS_ID */
9dee572c
NA		 350#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
351 + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING */
df271cd6
NA		 352 + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION */
353 + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION */
931ba87d 354 + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT */
50725f6e 355 + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT */
77f6abab 356 + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL */
2da0aea2 357 + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL */
cd9269d4 358 + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL */
d6c08aba 359 + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL */
42521450 360 + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL */
941121ee 361 + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL */
62938182 362 + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERIER */
a97df080 363 + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_ROUTER */
9dee572c 364#endif
9aba624d
NA		 365 + nla_total_size(sizeof(u16)); /* BRIDGE_VLANDB_GOPTS_RANGE */
366}
367
368static void br_vlan_global_opts_notify(const struct net_bridge *br,
369 u16 vid, u16 vid_range)
370{
371 struct net_bridge_vlan *v;
372 struct br_vlan_msg *bvm;
373 struct nlmsghdr *nlh;
374 struct sk_buff *skb;
375 int err = -ENOBUFS;
376
377 /* right now notifications are done only with rtnl held */
378 ASSERT_RTNL();
379
380 skb = nlmsg_new(rtnl_vlan_global_opts_nlmsg_size(), GFP_KERNEL);
381 if (!skb)
382 goto out_err;
383
384 err = -EMSGSIZE;
385 nlh = nlmsg_put(skb, 0, 0, RTM_NEWVLAN, sizeof(*bvm), 0);
386 if (!nlh)
387 goto out_err;
388 bvm = nlmsg_data(nlh);
389 memset(bvm, 0, sizeof(*bvm));
390 bvm->family = AF_BRIDGE;
391 bvm->ifindex = br->dev->ifindex;
392
393 /* need to find the vlan due to flags/options */
394 v = br_vlan_find(br_vlan_group(br), vid);
395 if (!v)
396 goto out_kfree;
397
398 if (!br_vlan_global_opts_fill(skb, vid, vid_range, v))
399 goto out_err;
400
401 nlmsg_end(skb, nlh);
402 rtnl_notify(skb, dev_net(br->dev), 0, RTNLGRP_BRVLAN, NULL, GFP_KERNEL);
403 return;
404
405out_err:
406 rtnl_set_sk_err(dev_net(br->dev), RTNLGRP_BRVLAN, err);
407out_kfree:
408 kfree_skb(skb);
409}
410
47ecd2db
NA		 411static int br_vlan_process_global_one_opts(const struct net_bridge *br,
412 struct net_bridge_vlan_group *vg,
413 struct net_bridge_vlan *v,
414 struct nlattr **tb,
415 bool *changed,
416 struct netlink_ext_ack *extack)
417{
df271cd6
NA		 418 int err __maybe_unused;
419
47ecd2db 420 *changed = false;
9dee572c
NA		 421#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
422 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING]) {
423 u8 mc_snooping;
424
425 mc_snooping = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING]);
426 if (br_multicast_toggle_global_vlan(v, !!mc_snooping))
427 *changed = true;
428 }
df271cd6
NA		 429 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION]) {
430 u8 ver;
431
432 ver = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION]);
433 err = br_multicast_set_igmp_version(&v->br_mcast_ctx, ver);
434 if (err)
435 return err;
436 *changed = true;
437 }
931ba87d
NA		 438 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT]) {
439 u32 cnt;
440
441 cnt = nla_get_u32(tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT]);
442 v->br_mcast_ctx.multicast_last_member_count = cnt;
443 *changed = true;
444 }
50725f6e
NA		 445 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT]) {
446 u32 cnt;
447
448 cnt = nla_get_u32(tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT]);
449 v->br_mcast_ctx.multicast_startup_query_count = cnt;
450 *changed = true;
451 }
77f6abab
NA		 452 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL]) {
453 u64 val;
454
455 val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL]);
456 v->br_mcast_ctx.multicast_last_member_interval = clock_t_to_jiffies(val);
457 *changed = true;
458 }
2da0aea2
NA		 459 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL]) {
460 u64 val;
461
462 val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL]);
463 v->br_mcast_ctx.multicast_membership_interval = clock_t_to_jiffies(val);
464 *changed = true;
465 }
cd9269d4
NA		 466 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL]) {
467 u64 val;
468
469 val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL]);
470 v->br_mcast_ctx.multicast_querier_interval = clock_t_to_jiffies(val);
471 *changed = true;
472 }
d6c08aba
NA		 473 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL]) {
474 u64 val;
475
476 val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL]);
477 v->br_mcast_ctx.multicast_query_interval = clock_t_to_jiffies(val);
478 *changed = true;
479 }
42521450
NA		 480 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL]) {
481 u64 val;
482
483 val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL]);
484 v->br_mcast_ctx.multicast_query_response_interval = clock_t_to_jiffies(val);
485 *changed = true;
486 }
941121ee
NA		 487 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL]) {
488 u64 val;
489
490 val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL]);
491 v->br_mcast_ctx.multicast_startup_query_interval = clock_t_to_jiffies(val);
492 *changed = true;
493 }
62938182
NA		 494 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER]) {
495 u8 val;
496
497 val = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER]);
498 err = br_multicast_set_querier(&v->br_mcast_ctx, val);
499 if (err)
500 return err;
501 *changed = true;
502 }
a97df080
NA		 503 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_ROUTER]) {
504 u8 val;
505
506 val = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_ROUTER]);
507 err = br_multicast_set_router(&v->br_mcast_ctx, val);
508 if (err)
509 return err;
510 *changed = true;
511 }
df271cd6
NA		 512#if IS_ENABLED(CONFIG_IPV6)
513 if (tb[BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION]) {
514 u8 ver;
515
516 ver = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION]);
517 err = br_multicast_set_mld_version(&v->br_mcast_ctx, ver);
518 if (err)
519 return err;
520 *changed = true;
521 }
522#endif
9dee572c
NA		 523#endif
524
47ecd2db
NA		 525 return 0;
526}
527
528static const struct nla_policy br_vlan_db_gpol[BRIDGE_VLANDB_GOPTS_MAX + 1] = {
529 [BRIDGE_VLANDB_GOPTS_ID] = { .type = NLA_U16 },
530 [BRIDGE_VLANDB_GOPTS_RANGE] = { .type = NLA_U16 },
9dee572c 531 [BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING] = { .type = NLA_U8 },
df271cd6 532 [BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION] = { .type = NLA_U8 },
d6c08aba 533 [BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL] = { .type = NLA_U64 },
62938182 534 [BRIDGE_VLANDB_GOPTS_MCAST_QUERIER] = { .type = NLA_U8 },
a97df080 535 [BRIDGE_VLANDB_GOPTS_MCAST_ROUTER] = { .type = NLA_U8 },
df271cd6 536 [BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION] = { .type = NLA_U8 },
931ba87d 537 [BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 },
50725f6e 538 [BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 },
77f6abab 539 [BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 },
2da0aea2 540 [BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 },
cd9269d4 541 [BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL] = { .type = NLA_U64 },
941121ee 542 [BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 },
42521450 543 [BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 },
47ecd2db
NA		 544};
545
546int br_vlan_rtm_process_global_options(struct net_device *dev,
547 const struct nlattr *attr,
548 int cmd,
549 struct netlink_ext_ack *extack)
550{
9aba624d 551 struct net_bridge_vlan *v, *curr_start = NULL, *curr_end = NULL;
47ecd2db
NA		 552 struct nlattr *tb[BRIDGE_VLANDB_GOPTS_MAX + 1];
553 struct net_bridge_vlan_group *vg;
47ecd2db
NA		 554 u16 vid, vid_range = 0;
555 struct net_bridge *br;
556 int err = 0;
557
558 if (cmd != RTM_NEWVLAN) {
559 NL_SET_ERR_MSG_MOD(extack, "Global vlan options support only set operation");
560 return -EINVAL;
561 }
562 if (!netif_is_bridge_master(dev)) {
563 NL_SET_ERR_MSG_MOD(extack, "Global vlan options can only be set on bridge device");
564 return -EINVAL;
565 }
566 br = netdev_priv(dev);
567 vg = br_vlan_group(br);
568 if (WARN_ON(!vg))
569 return -ENODEV;
570
571 err = nla_parse_nested(tb, BRIDGE_VLANDB_GOPTS_MAX, attr,
572 br_vlan_db_gpol, extack);
573 if (err)
574 return err;
575
576 if (!tb[BRIDGE_VLANDB_GOPTS_ID]) {
577 NL_SET_ERR_MSG_MOD(extack, "Missing vlan entry id");
578 return -EINVAL;
579 }
580 vid = nla_get_u16(tb[BRIDGE_VLANDB_GOPTS_ID]);
581 if (!br_vlan_valid_id(vid, extack))
582 return -EINVAL;
583
584 if (tb[BRIDGE_VLANDB_GOPTS_RANGE]) {
585 vid_range = nla_get_u16(tb[BRIDGE_VLANDB_GOPTS_RANGE]);
586 if (!br_vlan_valid_id(vid_range, extack))
587 return -EINVAL;
588 if (vid >= vid_range) {
589 NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id");
590 return -EINVAL;
591 }
592 } else {
593 vid_range = vid;
594 }
595
596 for (; vid <= vid_range; vid++) {
597 bool changed = false;
598
599 v = br_vlan_find(vg, vid);
600 if (!v) {
601 NL_SET_ERR_MSG_MOD(extack, "Vlan in range doesn't exist, can't process global options");
602 err = -ENOENT;
603 break;
604 }
605
606 err = br_vlan_process_global_one_opts(br, vg, v, tb, &changed,
607 extack);
608 if (err)
609 break;
9aba624d
NA		 610
611 if (changed) {
612 /* vlan options changed, check for range */
613 if (!curr_start) {
614 curr_start = v;
615 curr_end = v;
616 continue;
617 }
618
619 if (!br_vlan_global_opts_can_enter_range(v, curr_end)) {
620 br_vlan_global_opts_notify(br, curr_start->vid,
621 curr_end->vid);
622 curr_start = v;
623 }
624 curr_end = v;
625 } else {
626 /* nothing changed and nothing to notify yet */
627 if (!curr_start)
628 continue;
629
630 br_vlan_global_opts_notify(br, curr_start->vid,
631 curr_end->vid);
632 curr_start = NULL;
633 curr_end = NULL;
634 }
47ecd2db 635 }
9aba624d
NA		 636 if (curr_start)
637 br_vlan_global_opts_notify(br, curr_start->vid, curr_end->vid);
47ecd2db
NA		 638
639 return err;
640}
Linux 6.x block layer and io_uring tree(s)