Commit | Line | Data |
---|---|---|
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 | ||
12 | static 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 | ||
32 | static 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 */ |
40 | bool br_vlan_opts_eq_range(const struct net_bridge_vlan *v_curr, | |
41 | const struct net_bridge_vlan *range_end) | |
7a53e718 | 42 | { |
2796d846 NA |
43 | u8 range_mc_rtr = br_vlan_multicast_router(range_end); |
44 | u8 curr_mc_rtr = br_vlan_multicast_router(v_curr); | |
45 | ||
188c67dd | 46 | return v_curr->state == range_end->state && |
2796d846 NA |
47 | __vlan_tun_can_enter_range(v_curr, range_end) && |
48 | curr_mc_rtr == range_mc_rtr; | |
7a53e718 NA |
49 | } |
50 | ||
51 | bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v) | |
52 | { | |
2796d846 NA |
53 | if (nla_put_u8(skb, BRIDGE_VLANDB_ENTRY_STATE, br_vlan_get_state(v)) || |
54 | !__vlan_tun_put(skb, v)) | |
55 | return false; | |
56 | ||
57 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
58 | if (nla_put_u8(skb, BRIDGE_VLANDB_ENTRY_MCAST_ROUTER, | |
59 | br_vlan_multicast_router(v))) | |
60 | return false; | |
61 | #endif | |
62 | ||
63 | return true; | |
7a53e718 NA |
64 | } |
65 | ||
66 | size_t br_vlan_opts_nl_size(void) | |
67 | { | |
188c67dd | 68 | return nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_ENTRY_STATE */ |
fa388f29 | 69 | + nla_total_size(0) /* BRIDGE_VLANDB_ENTRY_TUNNEL_INFO */ |
2796d846 NA |
70 | + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_TINFO_ID */ |
71 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING | |
72 | + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_ENTRY_MCAST_ROUTER */ | |
73 | #endif | |
74 | + 0; | |
a580c76d NA |
75 | } |
76 | ||
77 | static int br_vlan_modify_state(struct net_bridge_vlan_group *vg, | |
78 | struct net_bridge_vlan *v, | |
79 | u8 state, | |
80 | bool *changed, | |
81 | struct netlink_ext_ack *extack) | |
82 | { | |
83 | struct net_bridge *br; | |
84 | ||
85 | ASSERT_RTNL(); | |
86 | ||
87 | if (state > BR_STATE_BLOCKING) { | |
88 | NL_SET_ERR_MSG_MOD(extack, "Invalid vlan state"); | |
89 | return -EINVAL; | |
90 | } | |
91 | ||
92 | if (br_vlan_is_brentry(v)) | |
93 | br = v->br; | |
94 | else | |
95 | br = v->port->br; | |
96 | ||
97 | if (br->stp_enabled == BR_KERNEL_STP) { | |
98 | NL_SET_ERR_MSG_MOD(extack, "Can't modify vlan state when using kernel STP"); | |
99 | return -EBUSY; | |
100 | } | |
101 | ||
ec7328b5 TW |
102 | if (br_opt_get(br, BROPT_MST_ENABLED)) { |
103 | NL_SET_ERR_MSG_MOD(extack, "Can't modify vlan state directly when MST is enabled"); | |
104 | return -EBUSY; | |
105 | } | |
106 | ||
a580c76d NA |
107 | if (v->state == state) |
108 | return 0; | |
109 | ||
110 | if (v->vid == br_get_pvid(vg)) | |
111 | br_vlan_set_pvid_state(vg, state); | |
112 | ||
113 | br_vlan_set_state(v, state); | |
114 | *changed = true; | |
115 | ||
7a53e718 NA |
116 | return 0; |
117 | } | |
a5d29ae2 | 118 | |
fa388f29 NA |
119 | static const struct nla_policy br_vlandb_tinfo_pol[BRIDGE_VLANDB_TINFO_MAX + 1] = { |
120 | [BRIDGE_VLANDB_TINFO_ID] = { .type = NLA_U32 }, | |
c443758b | 121 | [BRIDGE_VLANDB_TINFO_CMD] = { .type = NLA_U32 }, |
fa388f29 NA |
122 | }; |
123 | ||
569da082 NA |
124 | static int br_vlan_modify_tunnel(const struct net_bridge_port *p, |
125 | struct net_bridge_vlan *v, | |
126 | struct nlattr **tb, | |
127 | bool *changed, | |
128 | struct netlink_ext_ack *extack) | |
129 | { | |
fa388f29 | 130 | struct nlattr *tun_tb[BRIDGE_VLANDB_TINFO_MAX + 1], *attr; |
569da082 | 131 | struct bridge_vlan_info *vinfo; |
c443758b NA |
132 | u32 tun_id = 0; |
133 | int cmd, err; | |
569da082 NA |
134 | |
135 | if (!p) { | |
136 | NL_SET_ERR_MSG_MOD(extack, "Can't modify tunnel mapping of non-port vlans"); | |
137 | return -EINVAL; | |
138 | } | |
139 | if (!(p->flags & BR_VLAN_TUNNEL)) { | |
140 | NL_SET_ERR_MSG_MOD(extack, "Port doesn't have tunnel flag set"); | |
141 | return -EINVAL; | |
142 | } | |
143 | ||
fa388f29 NA |
144 | attr = tb[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO]; |
145 | err = nla_parse_nested(tun_tb, BRIDGE_VLANDB_TINFO_MAX, attr, | |
146 | br_vlandb_tinfo_pol, extack); | |
147 | if (err) | |
148 | return err; | |
149 | ||
c443758b NA |
150 | if (!tun_tb[BRIDGE_VLANDB_TINFO_CMD]) { |
151 | NL_SET_ERR_MSG_MOD(extack, "Missing tunnel command attribute"); | |
fa388f29 NA |
152 | return -ENOENT; |
153 | } | |
c443758b NA |
154 | cmd = nla_get_u32(tun_tb[BRIDGE_VLANDB_TINFO_CMD]); |
155 | switch (cmd) { | |
156 | case RTM_SETLINK: | |
157 | if (!tun_tb[BRIDGE_VLANDB_TINFO_ID]) { | |
158 | NL_SET_ERR_MSG_MOD(extack, "Missing tunnel id attribute"); | |
159 | return -ENOENT; | |
160 | } | |
161 | /* when working on vlan ranges this is the starting tunnel id */ | |
162 | tun_id = nla_get_u32(tun_tb[BRIDGE_VLANDB_TINFO_ID]); | |
163 | /* vlan info attr is guaranteed by br_vlan_rtm_process_one */ | |
164 | vinfo = nla_data(tb[BRIDGE_VLANDB_ENTRY_INFO]); | |
165 | /* tunnel ids are mapped to each vlan in increasing order, | |
166 | * the starting vlan is in BRIDGE_VLANDB_ENTRY_INFO and v is the | |
167 | * current vlan, so we compute: tun_id + v - vinfo->vid | |
168 | */ | |
169 | tun_id += v->vid - vinfo->vid; | |
170 | break; | |
171 | case RTM_DELLINK: | |
172 | break; | |
173 | default: | |
174 | NL_SET_ERR_MSG_MOD(extack, "Unsupported tunnel command"); | |
175 | return -EINVAL; | |
176 | } | |
177 | ||
178 | return br_vlan_tunnel_info(p, cmd, v->vid, tun_id, changed); | |
569da082 NA |
179 | } |
180 | ||
a5d29ae2 NA |
181 | static int br_vlan_process_one_opts(const struct net_bridge *br, |
182 | const struct net_bridge_port *p, | |
183 | struct net_bridge_vlan_group *vg, | |
184 | struct net_bridge_vlan *v, | |
185 | struct nlattr **tb, | |
186 | bool *changed, | |
187 | struct netlink_ext_ack *extack) | |
188 | { | |
a580c76d NA |
189 | int err; |
190 | ||
a5d29ae2 | 191 | *changed = false; |
a580c76d NA |
192 | if (tb[BRIDGE_VLANDB_ENTRY_STATE]) { |
193 | u8 state = nla_get_u8(tb[BRIDGE_VLANDB_ENTRY_STATE]); | |
194 | ||
195 | err = br_vlan_modify_state(vg, v, state, changed, extack); | |
196 | if (err) | |
197 | return err; | |
198 | } | |
fa388f29 | 199 | if (tb[BRIDGE_VLANDB_ENTRY_TUNNEL_INFO]) { |
569da082 NA |
200 | err = br_vlan_modify_tunnel(p, v, tb, changed, extack); |
201 | if (err) | |
202 | return err; | |
203 | } | |
a580c76d | 204 | |
2796d846 NA |
205 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
206 | if (tb[BRIDGE_VLANDB_ENTRY_MCAST_ROUTER]) { | |
207 | u8 val; | |
208 | ||
209 | val = nla_get_u8(tb[BRIDGE_VLANDB_ENTRY_MCAST_ROUTER]); | |
210 | err = br_multicast_set_vlan_router(v, val); | |
211 | if (err) | |
212 | return err; | |
213 | *changed = true; | |
214 | } | |
215 | #endif | |
216 | ||
a5d29ae2 NA |
217 | return 0; |
218 | } | |
219 | ||
220 | int br_vlan_process_options(const struct net_bridge *br, | |
221 | const struct net_bridge_port *p, | |
222 | struct net_bridge_vlan *range_start, | |
223 | struct net_bridge_vlan *range_end, | |
224 | struct nlattr **tb, | |
225 | struct netlink_ext_ack *extack) | |
226 | { | |
227 | struct net_bridge_vlan *v, *curr_start = NULL, *curr_end = NULL; | |
228 | struct net_bridge_vlan_group *vg; | |
229 | int vid, err = 0; | |
230 | u16 pvid; | |
231 | ||
232 | if (p) | |
233 | vg = nbp_vlan_group(p); | |
234 | else | |
235 | vg = br_vlan_group(br); | |
236 | ||
237 | if (!range_start || !br_vlan_should_use(range_start)) { | |
238 | NL_SET_ERR_MSG_MOD(extack, "Vlan range start doesn't exist, can't process options"); | |
239 | return -ENOENT; | |
240 | } | |
241 | if (!range_end || !br_vlan_should_use(range_end)) { | |
242 | NL_SET_ERR_MSG_MOD(extack, "Vlan range end doesn't exist, can't process options"); | |
243 | return -ENOENT; | |
244 | } | |
245 | ||
246 | pvid = br_get_pvid(vg); | |
247 | for (vid = range_start->vid; vid <= range_end->vid; vid++) { | |
248 | bool changed = false; | |
249 | ||
250 | v = br_vlan_find(vg, vid); | |
251 | if (!v || !br_vlan_should_use(v)) { | |
252 | NL_SET_ERR_MSG_MOD(extack, "Vlan in range doesn't exist, can't process options"); | |
253 | err = -ENOENT; | |
254 | break; | |
255 | } | |
256 | ||
257 | err = br_vlan_process_one_opts(br, p, vg, v, tb, &changed, | |
258 | extack); | |
259 | if (err) | |
260 | break; | |
261 | ||
262 | if (changed) { | |
263 | /* vlan options changed, check for range */ | |
264 | if (!curr_start) { | |
265 | curr_start = v; | |
266 | curr_end = v; | |
267 | continue; | |
268 | } | |
269 | ||
270 | if (v->vid == pvid || | |
271 | !br_vlan_can_enter_range(v, curr_end)) { | |
272 | br_vlan_notify(br, p, curr_start->vid, | |
273 | curr_end->vid, RTM_NEWVLAN); | |
274 | curr_start = v; | |
275 | } | |
276 | curr_end = v; | |
277 | } else { | |
278 | /* nothing changed and nothing to notify yet */ | |
279 | if (!curr_start) | |
280 | continue; | |
281 | ||
282 | br_vlan_notify(br, p, curr_start->vid, curr_end->vid, | |
283 | RTM_NEWVLAN); | |
284 | curr_start = NULL; | |
285 | curr_end = NULL; | |
286 | } | |
287 | } | |
288 | if (curr_start) | |
289 | br_vlan_notify(br, p, curr_start->vid, curr_end->vid, | |
290 | RTM_NEWVLAN); | |
291 | ||
292 | return err; | |
293 | } | |
47ecd2db | 294 | |
743a53d9 NA |
295 | bool br_vlan_global_opts_can_enter_range(const struct net_bridge_vlan *v_curr, |
296 | const struct net_bridge_vlan *r_end) | |
297 | { | |
9dee572c | 298 | return v_curr->vid - r_end->vid == 1 && |
8c678d60 | 299 | v_curr->msti == r_end->msti && |
9dee572c | 300 | ((v_curr->priv_flags ^ r_end->priv_flags) & |
df271cd6 NA |
301 | BR_VLFLAG_GLOBAL_MCAST_ENABLED) == 0 && |
302 | br_multicast_ctx_options_equal(&v_curr->br_mcast_ctx, | |
303 | &r_end->br_mcast_ctx); | |
743a53d9 NA |
304 | } |
305 | ||
306 | bool br_vlan_global_opts_fill(struct sk_buff *skb, u16 vid, u16 vid_range, | |
307 | const struct net_bridge_vlan *v_opts) | |
308 | { | |
dc002875 | 309 | struct nlattr *nest2 __maybe_unused; |
77f6abab | 310 | u64 clockval __maybe_unused; |
743a53d9 NA |
311 | struct nlattr *nest; |
312 | ||
313 | nest = nla_nest_start(skb, BRIDGE_VLANDB_GLOBAL_OPTIONS); | |
314 | if (!nest) | |
315 | return false; | |
316 | ||
317 | if (nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_ID, vid)) | |
318 | goto out_err; | |
319 | ||
320 | if (vid_range && vid < vid_range && | |
321 | nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_RANGE, vid_range)) | |
322 | goto out_err; | |
323 | ||
9dee572c NA |
324 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
325 | if (nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING, | |
df271cd6 NA |
326 | !!(v_opts->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED)) || |
327 | nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION, | |
931ba87d NA |
328 | v_opts->br_mcast_ctx.multicast_igmp_version) || |
329 | nla_put_u32(skb, BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT, | |
50725f6e NA |
330 | v_opts->br_mcast_ctx.multicast_last_member_count) || |
331 | nla_put_u32(skb, BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT, | |
62938182 NA |
332 | v_opts->br_mcast_ctx.multicast_startup_query_count) || |
333 | nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERIER, | |
a97df080 | 334 | v_opts->br_mcast_ctx.multicast_querier) || |
ddc649d1 NA |
335 | br_multicast_dump_querier_state(skb, &v_opts->br_mcast_ctx, |
336 | BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_STATE)) | |
df271cd6 NA |
337 | goto out_err; |
338 | ||
77f6abab NA |
339 | clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_last_member_interval); |
340 | if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL, | |
341 | clockval, BRIDGE_VLANDB_GOPTS_PAD)) | |
342 | goto out_err; | |
2da0aea2 NA |
343 | clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_membership_interval); |
344 | if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL, | |
345 | clockval, BRIDGE_VLANDB_GOPTS_PAD)) | |
346 | goto out_err; | |
cd9269d4 NA |
347 | clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_querier_interval); |
348 | if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL, | |
349 | clockval, BRIDGE_VLANDB_GOPTS_PAD)) | |
350 | goto out_err; | |
d6c08aba NA |
351 | clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_query_interval); |
352 | if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL, | |
353 | clockval, BRIDGE_VLANDB_GOPTS_PAD)) | |
354 | goto out_err; | |
42521450 NA |
355 | clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_query_response_interval); |
356 | if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL, | |
357 | clockval, BRIDGE_VLANDB_GOPTS_PAD)) | |
358 | goto out_err; | |
941121ee NA |
359 | clockval = jiffies_to_clock_t(v_opts->br_mcast_ctx.multicast_startup_query_interval); |
360 | if (nla_put_u64_64bit(skb, BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL, | |
361 | clockval, BRIDGE_VLANDB_GOPTS_PAD)) | |
362 | goto out_err; | |
77f6abab | 363 | |
dc002875 NA |
364 | if (br_rports_have_mc_router(&v_opts->br_mcast_ctx)) { |
365 | nest2 = nla_nest_start(skb, | |
366 | BRIDGE_VLANDB_GOPTS_MCAST_ROUTER_PORTS); | |
367 | if (!nest2) | |
368 | goto out_err; | |
369 | ||
370 | rcu_read_lock(); | |
371 | if (br_rports_fill_info(skb, &v_opts->br_mcast_ctx)) { | |
372 | rcu_read_unlock(); | |
373 | nla_nest_cancel(skb, nest2); | |
374 | goto out_err; | |
375 | } | |
376 | rcu_read_unlock(); | |
377 | ||
378 | nla_nest_end(skb, nest2); | |
379 | } | |
380 | ||
df271cd6 NA |
381 | #if IS_ENABLED(CONFIG_IPV6) |
382 | if (nla_put_u8(skb, BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION, | |
383 | v_opts->br_mcast_ctx.multicast_mld_version)) | |
9dee572c | 384 | goto out_err; |
df271cd6 | 385 | #endif |
9dee572c NA |
386 | #endif |
387 | ||
8c678d60 TW |
388 | if (nla_put_u16(skb, BRIDGE_VLANDB_GOPTS_MSTI, v_opts->msti)) |
389 | goto out_err; | |
390 | ||
743a53d9 NA |
391 | nla_nest_end(skb, nest); |
392 | ||
393 | return true; | |
394 | ||
395 | out_err: | |
396 | nla_nest_cancel(skb, nest); | |
397 | return false; | |
398 | } | |
399 | ||
05d6f38e | 400 | static size_t rtnl_vlan_global_opts_nlmsg_size(const struct net_bridge_vlan *v) |
9aba624d NA |
401 | { |
402 | return NLMSG_ALIGN(sizeof(struct br_vlan_msg)) | |
403 | + nla_total_size(0) /* BRIDGE_VLANDB_GLOBAL_OPTIONS */ | |
404 | + nla_total_size(sizeof(u16)) /* BRIDGE_VLANDB_GOPTS_ID */ | |
9dee572c NA |
405 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
406 | + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING */ | |
df271cd6 NA |
407 | + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION */ |
408 | + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION */ | |
931ba87d | 409 | + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT */ |
50725f6e | 410 | + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT */ |
77f6abab | 411 | + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL */ |
2da0aea2 | 412 | + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL */ |
cd9269d4 | 413 | + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL */ |
d6c08aba | 414 | + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL */ |
42521450 | 415 | + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL */ |
941121ee | 416 | + nla_total_size(sizeof(u64)) /* BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL */ |
62938182 | 417 | + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_GOPTS_MCAST_QUERIER */ |
ddc649d1 | 418 | + br_multicast_querier_state_size() /* BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_STATE */ |
05d6f38e NA |
419 | + nla_total_size(0) /* BRIDGE_VLANDB_GOPTS_MCAST_ROUTER_PORTS */ |
420 | + br_rports_size(&v->br_mcast_ctx) /* BRIDGE_VLANDB_GOPTS_MCAST_ROUTER_PORTS */ | |
9dee572c | 421 | #endif |
8c678d60 | 422 | + nla_total_size(sizeof(u16)) /* BRIDGE_VLANDB_GOPTS_MSTI */ |
9aba624d NA |
423 | + nla_total_size(sizeof(u16)); /* BRIDGE_VLANDB_GOPTS_RANGE */ |
424 | } | |
425 | ||
426 | static void br_vlan_global_opts_notify(const struct net_bridge *br, | |
427 | u16 vid, u16 vid_range) | |
428 | { | |
429 | struct net_bridge_vlan *v; | |
430 | struct br_vlan_msg *bvm; | |
431 | struct nlmsghdr *nlh; | |
432 | struct sk_buff *skb; | |
433 | int err = -ENOBUFS; | |
434 | ||
435 | /* right now notifications are done only with rtnl held */ | |
436 | ASSERT_RTNL(); | |
437 | ||
05d6f38e NA |
438 | /* need to find the vlan due to flags/options */ |
439 | v = br_vlan_find(br_vlan_group(br), vid); | |
440 | if (!v) | |
441 | return; | |
442 | ||
443 | skb = nlmsg_new(rtnl_vlan_global_opts_nlmsg_size(v), GFP_KERNEL); | |
9aba624d NA |
444 | if (!skb) |
445 | goto out_err; | |
446 | ||
447 | err = -EMSGSIZE; | |
448 | nlh = nlmsg_put(skb, 0, 0, RTM_NEWVLAN, sizeof(*bvm), 0); | |
449 | if (!nlh) | |
450 | goto out_err; | |
451 | bvm = nlmsg_data(nlh); | |
452 | memset(bvm, 0, sizeof(*bvm)); | |
453 | bvm->family = AF_BRIDGE; | |
454 | bvm->ifindex = br->dev->ifindex; | |
455 | ||
9aba624d NA |
456 | if (!br_vlan_global_opts_fill(skb, vid, vid_range, v)) |
457 | goto out_err; | |
458 | ||
459 | nlmsg_end(skb, nlh); | |
460 | rtnl_notify(skb, dev_net(br->dev), 0, RTNLGRP_BRVLAN, NULL, GFP_KERNEL); | |
461 | return; | |
462 | ||
463 | out_err: | |
464 | rtnl_set_sk_err(dev_net(br->dev), RTNLGRP_BRVLAN, err); | |
9aba624d NA |
465 | kfree_skb(skb); |
466 | } | |
467 | ||
47ecd2db NA |
468 | static int br_vlan_process_global_one_opts(const struct net_bridge *br, |
469 | struct net_bridge_vlan_group *vg, | |
470 | struct net_bridge_vlan *v, | |
471 | struct nlattr **tb, | |
472 | bool *changed, | |
473 | struct netlink_ext_ack *extack) | |
474 | { | |
df271cd6 NA |
475 | int err __maybe_unused; |
476 | ||
47ecd2db | 477 | *changed = false; |
9dee572c NA |
478 | #ifdef CONFIG_BRIDGE_IGMP_SNOOPING |
479 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING]) { | |
480 | u8 mc_snooping; | |
481 | ||
482 | mc_snooping = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING]); | |
483 | if (br_multicast_toggle_global_vlan(v, !!mc_snooping)) | |
484 | *changed = true; | |
485 | } | |
df271cd6 NA |
486 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION]) { |
487 | u8 ver; | |
488 | ||
489 | ver = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION]); | |
490 | err = br_multicast_set_igmp_version(&v->br_mcast_ctx, ver); | |
491 | if (err) | |
492 | return err; | |
493 | *changed = true; | |
494 | } | |
931ba87d NA |
495 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT]) { |
496 | u32 cnt; | |
497 | ||
498 | cnt = nla_get_u32(tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT]); | |
499 | v->br_mcast_ctx.multicast_last_member_count = cnt; | |
500 | *changed = true; | |
501 | } | |
50725f6e NA |
502 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT]) { |
503 | u32 cnt; | |
504 | ||
505 | cnt = nla_get_u32(tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT]); | |
506 | v->br_mcast_ctx.multicast_startup_query_count = cnt; | |
507 | *changed = true; | |
508 | } | |
77f6abab NA |
509 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL]) { |
510 | u64 val; | |
511 | ||
512 | val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL]); | |
513 | v->br_mcast_ctx.multicast_last_member_interval = clock_t_to_jiffies(val); | |
514 | *changed = true; | |
515 | } | |
2da0aea2 NA |
516 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL]) { |
517 | u64 val; | |
518 | ||
519 | val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL]); | |
520 | v->br_mcast_ctx.multicast_membership_interval = clock_t_to_jiffies(val); | |
521 | *changed = true; | |
522 | } | |
cd9269d4 NA |
523 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL]) { |
524 | u64 val; | |
525 | ||
526 | val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL]); | |
527 | v->br_mcast_ctx.multicast_querier_interval = clock_t_to_jiffies(val); | |
528 | *changed = true; | |
529 | } | |
d6c08aba NA |
530 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL]) { |
531 | u64 val; | |
532 | ||
533 | val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL]); | |
99b40610 | 534 | br_multicast_set_query_intvl(&v->br_mcast_ctx, val); |
d6c08aba NA |
535 | *changed = true; |
536 | } | |
42521450 NA |
537 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL]) { |
538 | u64 val; | |
539 | ||
540 | val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL]); | |
541 | v->br_mcast_ctx.multicast_query_response_interval = clock_t_to_jiffies(val); | |
542 | *changed = true; | |
543 | } | |
941121ee NA |
544 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL]) { |
545 | u64 val; | |
546 | ||
547 | val = nla_get_u64(tb[BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL]); | |
f83a112b | 548 | br_multicast_set_startup_query_intvl(&v->br_mcast_ctx, val); |
941121ee NA |
549 | *changed = true; |
550 | } | |
62938182 NA |
551 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER]) { |
552 | u8 val; | |
553 | ||
554 | val = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_QUERIER]); | |
555 | err = br_multicast_set_querier(&v->br_mcast_ctx, val); | |
556 | if (err) | |
557 | return err; | |
558 | *changed = true; | |
559 | } | |
df271cd6 NA |
560 | #if IS_ENABLED(CONFIG_IPV6) |
561 | if (tb[BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION]) { | |
562 | u8 ver; | |
563 | ||
564 | ver = nla_get_u8(tb[BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION]); | |
565 | err = br_multicast_set_mld_version(&v->br_mcast_ctx, ver); | |
566 | if (err) | |
567 | return err; | |
568 | *changed = true; | |
569 | } | |
570 | #endif | |
9dee572c | 571 | #endif |
8c678d60 TW |
572 | if (tb[BRIDGE_VLANDB_GOPTS_MSTI]) { |
573 | u16 msti; | |
574 | ||
575 | msti = nla_get_u16(tb[BRIDGE_VLANDB_GOPTS_MSTI]); | |
576 | err = br_mst_vlan_set_msti(v, msti); | |
577 | if (err) | |
578 | return err; | |
579 | *changed = true; | |
580 | } | |
9dee572c | 581 | |
47ecd2db NA |
582 | return 0; |
583 | } | |
584 | ||
585 | static const struct nla_policy br_vlan_db_gpol[BRIDGE_VLANDB_GOPTS_MAX + 1] = { | |
586 | [BRIDGE_VLANDB_GOPTS_ID] = { .type = NLA_U16 }, | |
587 | [BRIDGE_VLANDB_GOPTS_RANGE] = { .type = NLA_U16 }, | |
9dee572c | 588 | [BRIDGE_VLANDB_GOPTS_MCAST_SNOOPING] = { .type = NLA_U8 }, |
df271cd6 | 589 | [BRIDGE_VLANDB_GOPTS_MCAST_MLD_VERSION] = { .type = NLA_U8 }, |
d6c08aba | 590 | [BRIDGE_VLANDB_GOPTS_MCAST_QUERY_INTVL] = { .type = NLA_U64 }, |
62938182 | 591 | [BRIDGE_VLANDB_GOPTS_MCAST_QUERIER] = { .type = NLA_U8 }, |
df271cd6 | 592 | [BRIDGE_VLANDB_GOPTS_MCAST_IGMP_VERSION] = { .type = NLA_U8 }, |
931ba87d | 593 | [BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_CNT] = { .type = NLA_U32 }, |
50725f6e | 594 | [BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_CNT] = { .type = NLA_U32 }, |
77f6abab | 595 | [BRIDGE_VLANDB_GOPTS_MCAST_LAST_MEMBER_INTVL] = { .type = NLA_U64 }, |
2da0aea2 | 596 | [BRIDGE_VLANDB_GOPTS_MCAST_MEMBERSHIP_INTVL] = { .type = NLA_U64 }, |
cd9269d4 | 597 | [BRIDGE_VLANDB_GOPTS_MCAST_QUERIER_INTVL] = { .type = NLA_U64 }, |
941121ee | 598 | [BRIDGE_VLANDB_GOPTS_MCAST_STARTUP_QUERY_INTVL] = { .type = NLA_U64 }, |
42521450 | 599 | [BRIDGE_VLANDB_GOPTS_MCAST_QUERY_RESPONSE_INTVL] = { .type = NLA_U64 }, |
8c678d60 | 600 | [BRIDGE_VLANDB_GOPTS_MSTI] = NLA_POLICY_MAX(NLA_U16, VLAN_N_VID - 1), |
47ecd2db NA |
601 | }; |
602 | ||
603 | int br_vlan_rtm_process_global_options(struct net_device *dev, | |
604 | const struct nlattr *attr, | |
605 | int cmd, | |
606 | struct netlink_ext_ack *extack) | |
607 | { | |
9aba624d | 608 | struct net_bridge_vlan *v, *curr_start = NULL, *curr_end = NULL; |
47ecd2db NA |
609 | struct nlattr *tb[BRIDGE_VLANDB_GOPTS_MAX + 1]; |
610 | struct net_bridge_vlan_group *vg; | |
47ecd2db NA |
611 | u16 vid, vid_range = 0; |
612 | struct net_bridge *br; | |
613 | int err = 0; | |
614 | ||
615 | if (cmd != RTM_NEWVLAN) { | |
616 | NL_SET_ERR_MSG_MOD(extack, "Global vlan options support only set operation"); | |
617 | return -EINVAL; | |
618 | } | |
619 | if (!netif_is_bridge_master(dev)) { | |
620 | NL_SET_ERR_MSG_MOD(extack, "Global vlan options can only be set on bridge device"); | |
621 | return -EINVAL; | |
622 | } | |
623 | br = netdev_priv(dev); | |
624 | vg = br_vlan_group(br); | |
625 | if (WARN_ON(!vg)) | |
626 | return -ENODEV; | |
627 | ||
628 | err = nla_parse_nested(tb, BRIDGE_VLANDB_GOPTS_MAX, attr, | |
629 | br_vlan_db_gpol, extack); | |
630 | if (err) | |
631 | return err; | |
632 | ||
633 | if (!tb[BRIDGE_VLANDB_GOPTS_ID]) { | |
634 | NL_SET_ERR_MSG_MOD(extack, "Missing vlan entry id"); | |
635 | return -EINVAL; | |
636 | } | |
637 | vid = nla_get_u16(tb[BRIDGE_VLANDB_GOPTS_ID]); | |
638 | if (!br_vlan_valid_id(vid, extack)) | |
639 | return -EINVAL; | |
640 | ||
641 | if (tb[BRIDGE_VLANDB_GOPTS_RANGE]) { | |
642 | vid_range = nla_get_u16(tb[BRIDGE_VLANDB_GOPTS_RANGE]); | |
643 | if (!br_vlan_valid_id(vid_range, extack)) | |
644 | return -EINVAL; | |
645 | if (vid >= vid_range) { | |
646 | NL_SET_ERR_MSG_MOD(extack, "End vlan id is less than or equal to start vlan id"); | |
647 | return -EINVAL; | |
648 | } | |
649 | } else { | |
650 | vid_range = vid; | |
651 | } | |
652 | ||
653 | for (; vid <= vid_range; vid++) { | |
654 | bool changed = false; | |
655 | ||
656 | v = br_vlan_find(vg, vid); | |
657 | if (!v) { | |
658 | NL_SET_ERR_MSG_MOD(extack, "Vlan in range doesn't exist, can't process global options"); | |
659 | err = -ENOENT; | |
660 | break; | |
661 | } | |
662 | ||
663 | err = br_vlan_process_global_one_opts(br, vg, v, tb, &changed, | |
664 | extack); | |
665 | if (err) | |
666 | break; | |
9aba624d NA |
667 | |
668 | if (changed) { | |
669 | /* vlan options changed, check for range */ | |
670 | if (!curr_start) { | |
671 | curr_start = v; | |
672 | curr_end = v; | |
673 | continue; | |
674 | } | |
675 | ||
676 | if (!br_vlan_global_opts_can_enter_range(v, curr_end)) { | |
677 | br_vlan_global_opts_notify(br, curr_start->vid, | |
678 | curr_end->vid); | |
679 | curr_start = v; | |
680 | } | |
681 | curr_end = v; | |
682 | } else { | |
683 | /* nothing changed and nothing to notify yet */ | |
684 | if (!curr_start) | |
685 | continue; | |
686 | ||
687 | br_vlan_global_opts_notify(br, curr_start->vid, | |
688 | curr_end->vid); | |
689 | curr_start = NULL; | |
690 | curr_end = NULL; | |
691 | } | |
47ecd2db | 692 | } |
9aba624d NA |
693 | if (curr_start) |
694 | br_vlan_global_opts_notify(br, curr_start->vid, curr_end->vid); | |
47ecd2db NA |
695 | |
696 | return err; | |
697 | } |