1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (C) B.A.T.M.A.N. contributors:
10 #include <linux/atomic.h>
11 #include <linux/bitops.h>
12 #include <linux/bug.h>
13 #include <linux/byteorder/generic.h>
14 #include <linux/cache.h>
15 #include <linux/err.h>
16 #include <linux/errno.h>
17 #include <linux/export.h>
18 #include <linux/genetlink.h>
19 #include <linux/gfp.h>
20 #include <linux/if_ether.h>
21 #include <linux/if_vlan.h>
22 #include <linux/init.h>
23 #include <linux/kernel.h>
24 #include <linux/limits.h>
25 #include <linux/list.h>
26 #include <linux/minmax.h>
27 #include <linux/netdevice.h>
28 #include <linux/netlink.h>
29 #include <linux/printk.h>
30 #include <linux/rtnetlink.h>
31 #include <linux/skbuff.h>
32 #include <linux/stddef.h>
33 #include <linux/types.h>
34 #include <net/genetlink.h>
35 #include <net/net_namespace.h>
36 #include <net/netlink.h>
38 #include <uapi/linux/batadv_packet.h>
39 #include <uapi/linux/batman_adv.h>
42 #include "bridge_loop_avoidance.h"
43 #include "distributed-arp-table.h"
44 #include "gateway_client.h"
45 #include "gateway_common.h"
46 #include "hard-interface.h"
48 #include "multicast.h"
49 #include "network-coding.h"
50 #include "originator.h"
51 #include "soft-interface.h"
53 #include "translation-table.h"
55 struct genl_family batadv_netlink_family;
57 /* multicast groups */
58 enum batadv_netlink_multicast_groups {
59 BATADV_NL_MCGRP_CONFIG,
60 BATADV_NL_MCGRP_TPMETER,
64 * enum batadv_genl_ops_flags - flags for genl_ops's internal_flags
66 enum batadv_genl_ops_flags {
68 * @BATADV_FLAG_NEED_MESH: request requires valid soft interface in
69 * attribute BATADV_ATTR_MESH_IFINDEX and expects a pointer to it to be
70 * saved in info->user_ptr[0]
72 BATADV_FLAG_NEED_MESH = BIT(0),
75 * @BATADV_FLAG_NEED_HARDIF: request requires valid hard interface in
76 * attribute BATADV_ATTR_HARD_IFINDEX and expects a pointer to it to be
77 * saved in info->user_ptr[1]
79 BATADV_FLAG_NEED_HARDIF = BIT(1),
82 * @BATADV_FLAG_NEED_VLAN: request requires valid vlan in
83 * attribute BATADV_ATTR_VLANID and expects a pointer to it to be
84 * saved in info->user_ptr[1]
86 BATADV_FLAG_NEED_VLAN = BIT(2),
89 static const struct genl_multicast_group batadv_netlink_mcgrps[] = {
90 [BATADV_NL_MCGRP_CONFIG] = { .name = BATADV_NL_MCAST_GROUP_CONFIG },
91 [BATADV_NL_MCGRP_TPMETER] = { .name = BATADV_NL_MCAST_GROUP_TPMETER },
94 static const struct nla_policy batadv_netlink_policy[NUM_BATADV_ATTR] = {
95 [BATADV_ATTR_VERSION] = { .type = NLA_STRING },
96 [BATADV_ATTR_ALGO_NAME] = { .type = NLA_STRING },
97 [BATADV_ATTR_MESH_IFINDEX] = { .type = NLA_U32 },
98 [BATADV_ATTR_MESH_IFNAME] = { .type = NLA_STRING },
99 [BATADV_ATTR_MESH_ADDRESS] = { .len = ETH_ALEN },
100 [BATADV_ATTR_HARD_IFINDEX] = { .type = NLA_U32 },
101 [BATADV_ATTR_HARD_IFNAME] = { .type = NLA_STRING },
102 [BATADV_ATTR_HARD_ADDRESS] = { .len = ETH_ALEN },
103 [BATADV_ATTR_ORIG_ADDRESS] = { .len = ETH_ALEN },
104 [BATADV_ATTR_TPMETER_RESULT] = { .type = NLA_U8 },
105 [BATADV_ATTR_TPMETER_TEST_TIME] = { .type = NLA_U32 },
106 [BATADV_ATTR_TPMETER_BYTES] = { .type = NLA_U64 },
107 [BATADV_ATTR_TPMETER_COOKIE] = { .type = NLA_U32 },
108 [BATADV_ATTR_ACTIVE] = { .type = NLA_FLAG },
109 [BATADV_ATTR_TT_ADDRESS] = { .len = ETH_ALEN },
110 [BATADV_ATTR_TT_TTVN] = { .type = NLA_U8 },
111 [BATADV_ATTR_TT_LAST_TTVN] = { .type = NLA_U8 },
112 [BATADV_ATTR_TT_CRC32] = { .type = NLA_U32 },
113 [BATADV_ATTR_TT_VID] = { .type = NLA_U16 },
114 [BATADV_ATTR_TT_FLAGS] = { .type = NLA_U32 },
115 [BATADV_ATTR_FLAG_BEST] = { .type = NLA_FLAG },
116 [BATADV_ATTR_LAST_SEEN_MSECS] = { .type = NLA_U32 },
117 [BATADV_ATTR_NEIGH_ADDRESS] = { .len = ETH_ALEN },
118 [BATADV_ATTR_TQ] = { .type = NLA_U8 },
119 [BATADV_ATTR_THROUGHPUT] = { .type = NLA_U32 },
120 [BATADV_ATTR_BANDWIDTH_UP] = { .type = NLA_U32 },
121 [BATADV_ATTR_BANDWIDTH_DOWN] = { .type = NLA_U32 },
122 [BATADV_ATTR_ROUTER] = { .len = ETH_ALEN },
123 [BATADV_ATTR_BLA_OWN] = { .type = NLA_FLAG },
124 [BATADV_ATTR_BLA_ADDRESS] = { .len = ETH_ALEN },
125 [BATADV_ATTR_BLA_VID] = { .type = NLA_U16 },
126 [BATADV_ATTR_BLA_BACKBONE] = { .len = ETH_ALEN },
127 [BATADV_ATTR_BLA_CRC] = { .type = NLA_U16 },
128 [BATADV_ATTR_DAT_CACHE_IP4ADDRESS] = { .type = NLA_U32 },
129 [BATADV_ATTR_DAT_CACHE_HWADDRESS] = { .len = ETH_ALEN },
130 [BATADV_ATTR_DAT_CACHE_VID] = { .type = NLA_U16 },
131 [BATADV_ATTR_MCAST_FLAGS] = { .type = NLA_U32 },
132 [BATADV_ATTR_MCAST_FLAGS_PRIV] = { .type = NLA_U32 },
133 [BATADV_ATTR_VLANID] = { .type = NLA_U16 },
134 [BATADV_ATTR_AGGREGATED_OGMS_ENABLED] = { .type = NLA_U8 },
135 [BATADV_ATTR_AP_ISOLATION_ENABLED] = { .type = NLA_U8 },
136 [BATADV_ATTR_ISOLATION_MARK] = { .type = NLA_U32 },
137 [BATADV_ATTR_ISOLATION_MASK] = { .type = NLA_U32 },
138 [BATADV_ATTR_BONDING_ENABLED] = { .type = NLA_U8 },
139 [BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED] = { .type = NLA_U8 },
140 [BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED] = { .type = NLA_U8 },
141 [BATADV_ATTR_FRAGMENTATION_ENABLED] = { .type = NLA_U8 },
142 [BATADV_ATTR_GW_BANDWIDTH_DOWN] = { .type = NLA_U32 },
143 [BATADV_ATTR_GW_BANDWIDTH_UP] = { .type = NLA_U32 },
144 [BATADV_ATTR_GW_MODE] = { .type = NLA_U8 },
145 [BATADV_ATTR_GW_SEL_CLASS] = { .type = NLA_U32 },
146 [BATADV_ATTR_HOP_PENALTY] = { .type = NLA_U8 },
147 [BATADV_ATTR_LOG_LEVEL] = { .type = NLA_U32 },
148 [BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED] = { .type = NLA_U8 },
149 [BATADV_ATTR_MULTICAST_FANOUT] = { .type = NLA_U32 },
150 [BATADV_ATTR_NETWORK_CODING_ENABLED] = { .type = NLA_U8 },
151 [BATADV_ATTR_ORIG_INTERVAL] = { .type = NLA_U32 },
152 [BATADV_ATTR_ELP_INTERVAL] = { .type = NLA_U32 },
153 [BATADV_ATTR_THROUGHPUT_OVERRIDE] = { .type = NLA_U32 },
157 * batadv_netlink_get_ifindex() - Extract an interface index from a message
158 * @nlh: Message header
159 * @attrtype: Attribute which holds an interface index
161 * Return: interface index, or 0.
164 batadv_netlink_get_ifindex(const struct nlmsghdr *nlh, int attrtype)
166 struct nlattr *attr = nlmsg_find_attr(nlh, GENL_HDRLEN, attrtype);
168 return (attr && nla_len(attr) == sizeof(u32)) ? nla_get_u32(attr) : 0;
172 * batadv_netlink_mesh_fill_ap_isolation() - Add ap_isolation softif attribute
173 * @msg: Netlink message to dump into
174 * @bat_priv: the bat priv with all the soft interface information
176 * Return: 0 on success or negative error number in case of failure
178 static int batadv_netlink_mesh_fill_ap_isolation(struct sk_buff *msg,
179 struct batadv_priv *bat_priv)
181 struct batadv_softif_vlan *vlan;
184 vlan = batadv_softif_vlan_get(bat_priv, BATADV_NO_FLAGS);
188 ap_isolation = atomic_read(&vlan->ap_isolation);
189 batadv_softif_vlan_put(vlan);
191 return nla_put_u8(msg, BATADV_ATTR_AP_ISOLATION_ENABLED,
196 * batadv_netlink_set_mesh_ap_isolation() - Set ap_isolation from genl msg
197 * @attr: parsed BATADV_ATTR_AP_ISOLATION_ENABLED attribute
198 * @bat_priv: the bat priv with all the soft interface information
200 * Return: 0 on success or negative error number in case of failure
202 static int batadv_netlink_set_mesh_ap_isolation(struct nlattr *attr,
203 struct batadv_priv *bat_priv)
205 struct batadv_softif_vlan *vlan;
207 vlan = batadv_softif_vlan_get(bat_priv, BATADV_NO_FLAGS);
211 atomic_set(&vlan->ap_isolation, !!nla_get_u8(attr));
212 batadv_softif_vlan_put(vlan);
218 * batadv_netlink_mesh_fill() - Fill message with mesh attributes
219 * @msg: Netlink message to dump into
220 * @bat_priv: the bat priv with all the soft interface information
221 * @cmd: type of message to generate
222 * @portid: Port making netlink request
223 * @seq: sequence number for message
224 * @flags: Additional flags for message
226 * Return: 0 on success or negative error number in case of failure
228 static int batadv_netlink_mesh_fill(struct sk_buff *msg,
229 struct batadv_priv *bat_priv,
230 enum batadv_nl_commands cmd,
231 u32 portid, u32 seq, int flags)
233 struct net_device *soft_iface = bat_priv->soft_iface;
234 struct batadv_hard_iface *primary_if = NULL;
235 struct net_device *hard_iface;
238 hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, flags, cmd);
242 if (nla_put_string(msg, BATADV_ATTR_VERSION, BATADV_SOURCE_VERSION) ||
243 nla_put_string(msg, BATADV_ATTR_ALGO_NAME,
244 bat_priv->algo_ops->name) ||
245 nla_put_u32(msg, BATADV_ATTR_MESH_IFINDEX, soft_iface->ifindex) ||
246 nla_put_string(msg, BATADV_ATTR_MESH_IFNAME, soft_iface->name) ||
247 nla_put(msg, BATADV_ATTR_MESH_ADDRESS, ETH_ALEN,
248 soft_iface->dev_addr) ||
249 nla_put_u8(msg, BATADV_ATTR_TT_TTVN,
250 (u8)atomic_read(&bat_priv->tt.vn)))
251 goto nla_put_failure;
253 #ifdef CONFIG_BATMAN_ADV_BLA
254 if (nla_put_u16(msg, BATADV_ATTR_BLA_CRC,
255 ntohs(bat_priv->bla.claim_dest.group)))
256 goto nla_put_failure;
259 if (batadv_mcast_mesh_info_put(msg, bat_priv))
260 goto nla_put_failure;
262 primary_if = batadv_primary_if_get_selected(bat_priv);
263 if (primary_if && primary_if->if_status == BATADV_IF_ACTIVE) {
264 hard_iface = primary_if->net_dev;
266 if (nla_put_u32(msg, BATADV_ATTR_HARD_IFINDEX,
267 hard_iface->ifindex) ||
268 nla_put_string(msg, BATADV_ATTR_HARD_IFNAME,
270 nla_put(msg, BATADV_ATTR_HARD_ADDRESS, ETH_ALEN,
271 hard_iface->dev_addr))
272 goto nla_put_failure;
275 if (nla_put_u8(msg, BATADV_ATTR_AGGREGATED_OGMS_ENABLED,
276 !!atomic_read(&bat_priv->aggregated_ogms)))
277 goto nla_put_failure;
279 if (batadv_netlink_mesh_fill_ap_isolation(msg, bat_priv))
280 goto nla_put_failure;
282 if (nla_put_u32(msg, BATADV_ATTR_ISOLATION_MARK,
283 bat_priv->isolation_mark))
284 goto nla_put_failure;
286 if (nla_put_u32(msg, BATADV_ATTR_ISOLATION_MASK,
287 bat_priv->isolation_mark_mask))
288 goto nla_put_failure;
290 if (nla_put_u8(msg, BATADV_ATTR_BONDING_ENABLED,
291 !!atomic_read(&bat_priv->bonding)))
292 goto nla_put_failure;
294 #ifdef CONFIG_BATMAN_ADV_BLA
295 if (nla_put_u8(msg, BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED,
296 !!atomic_read(&bat_priv->bridge_loop_avoidance)))
297 goto nla_put_failure;
298 #endif /* CONFIG_BATMAN_ADV_BLA */
300 #ifdef CONFIG_BATMAN_ADV_DAT
301 if (nla_put_u8(msg, BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED,
302 !!atomic_read(&bat_priv->distributed_arp_table)))
303 goto nla_put_failure;
304 #endif /* CONFIG_BATMAN_ADV_DAT */
306 if (nla_put_u8(msg, BATADV_ATTR_FRAGMENTATION_ENABLED,
307 !!atomic_read(&bat_priv->fragmentation)))
308 goto nla_put_failure;
310 if (nla_put_u32(msg, BATADV_ATTR_GW_BANDWIDTH_DOWN,
311 atomic_read(&bat_priv->gw.bandwidth_down)))
312 goto nla_put_failure;
314 if (nla_put_u32(msg, BATADV_ATTR_GW_BANDWIDTH_UP,
315 atomic_read(&bat_priv->gw.bandwidth_up)))
316 goto nla_put_failure;
318 if (nla_put_u8(msg, BATADV_ATTR_GW_MODE,
319 atomic_read(&bat_priv->gw.mode)))
320 goto nla_put_failure;
322 if (bat_priv->algo_ops->gw.get_best_gw_node &&
323 bat_priv->algo_ops->gw.is_eligible) {
324 /* GW selection class is not available if the routing algorithm
325 * in use does not implement the GW API
327 if (nla_put_u32(msg, BATADV_ATTR_GW_SEL_CLASS,
328 atomic_read(&bat_priv->gw.sel_class)))
329 goto nla_put_failure;
332 if (nla_put_u8(msg, BATADV_ATTR_HOP_PENALTY,
333 atomic_read(&bat_priv->hop_penalty)))
334 goto nla_put_failure;
336 #ifdef CONFIG_BATMAN_ADV_DEBUG
337 if (nla_put_u32(msg, BATADV_ATTR_LOG_LEVEL,
338 atomic_read(&bat_priv->log_level)))
339 goto nla_put_failure;
340 #endif /* CONFIG_BATMAN_ADV_DEBUG */
342 #ifdef CONFIG_BATMAN_ADV_MCAST
343 if (nla_put_u8(msg, BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED,
344 !atomic_read(&bat_priv->multicast_mode)))
345 goto nla_put_failure;
347 if (nla_put_u32(msg, BATADV_ATTR_MULTICAST_FANOUT,
348 atomic_read(&bat_priv->multicast_fanout)))
349 goto nla_put_failure;
350 #endif /* CONFIG_BATMAN_ADV_MCAST */
352 #ifdef CONFIG_BATMAN_ADV_NC
353 if (nla_put_u8(msg, BATADV_ATTR_NETWORK_CODING_ENABLED,
354 !!atomic_read(&bat_priv->network_coding)))
355 goto nla_put_failure;
356 #endif /* CONFIG_BATMAN_ADV_NC */
358 if (nla_put_u32(msg, BATADV_ATTR_ORIG_INTERVAL,
359 atomic_read(&bat_priv->orig_interval)))
360 goto nla_put_failure;
363 batadv_hardif_put(primary_if);
365 genlmsg_end(msg, hdr);
370 batadv_hardif_put(primary_if);
372 genlmsg_cancel(msg, hdr);
377 * batadv_netlink_notify_mesh() - send softif attributes to listener
378 * @bat_priv: the bat priv with all the soft interface information
380 * Return: 0 on success, < 0 on error
382 int batadv_netlink_notify_mesh(struct batadv_priv *bat_priv)
387 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
391 ret = batadv_netlink_mesh_fill(msg, bat_priv, BATADV_CMD_SET_MESH,
398 genlmsg_multicast_netns(&batadv_netlink_family,
399 dev_net(bat_priv->soft_iface), msg, 0,
400 BATADV_NL_MCGRP_CONFIG, GFP_KERNEL);
406 * batadv_netlink_get_mesh() - Get softif attributes
407 * @skb: Netlink message with request data
408 * @info: receiver information
410 * Return: 0 on success or negative error number in case of failure
412 static int batadv_netlink_get_mesh(struct sk_buff *skb, struct genl_info *info)
414 struct batadv_priv *bat_priv = info->user_ptr[0];
418 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
422 ret = batadv_netlink_mesh_fill(msg, bat_priv, BATADV_CMD_GET_MESH,
423 info->snd_portid, info->snd_seq, 0);
429 ret = genlmsg_reply(msg, info);
435 * batadv_netlink_set_mesh() - Set softif attributes
436 * @skb: Netlink message with request data
437 * @info: receiver information
439 * Return: 0 on success or negative error number in case of failure
441 static int batadv_netlink_set_mesh(struct sk_buff *skb, struct genl_info *info)
443 struct batadv_priv *bat_priv = info->user_ptr[0];
446 if (info->attrs[BATADV_ATTR_AGGREGATED_OGMS_ENABLED]) {
447 attr = info->attrs[BATADV_ATTR_AGGREGATED_OGMS_ENABLED];
449 atomic_set(&bat_priv->aggregated_ogms, !!nla_get_u8(attr));
452 if (info->attrs[BATADV_ATTR_AP_ISOLATION_ENABLED]) {
453 attr = info->attrs[BATADV_ATTR_AP_ISOLATION_ENABLED];
455 batadv_netlink_set_mesh_ap_isolation(attr, bat_priv);
458 if (info->attrs[BATADV_ATTR_ISOLATION_MARK]) {
459 attr = info->attrs[BATADV_ATTR_ISOLATION_MARK];
461 bat_priv->isolation_mark = nla_get_u32(attr);
464 if (info->attrs[BATADV_ATTR_ISOLATION_MASK]) {
465 attr = info->attrs[BATADV_ATTR_ISOLATION_MASK];
467 bat_priv->isolation_mark_mask = nla_get_u32(attr);
470 if (info->attrs[BATADV_ATTR_BONDING_ENABLED]) {
471 attr = info->attrs[BATADV_ATTR_BONDING_ENABLED];
473 atomic_set(&bat_priv->bonding, !!nla_get_u8(attr));
476 #ifdef CONFIG_BATMAN_ADV_BLA
477 if (info->attrs[BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED]) {
478 attr = info->attrs[BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED];
480 atomic_set(&bat_priv->bridge_loop_avoidance,
482 batadv_bla_status_update(bat_priv->soft_iface);
484 #endif /* CONFIG_BATMAN_ADV_BLA */
486 #ifdef CONFIG_BATMAN_ADV_DAT
487 if (info->attrs[BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED]) {
488 attr = info->attrs[BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED];
490 atomic_set(&bat_priv->distributed_arp_table,
492 batadv_dat_status_update(bat_priv->soft_iface);
494 #endif /* CONFIG_BATMAN_ADV_DAT */
496 if (info->attrs[BATADV_ATTR_FRAGMENTATION_ENABLED]) {
497 attr = info->attrs[BATADV_ATTR_FRAGMENTATION_ENABLED];
499 atomic_set(&bat_priv->fragmentation, !!nla_get_u8(attr));
500 batadv_update_min_mtu(bat_priv->soft_iface);
503 if (info->attrs[BATADV_ATTR_GW_BANDWIDTH_DOWN]) {
504 attr = info->attrs[BATADV_ATTR_GW_BANDWIDTH_DOWN];
506 atomic_set(&bat_priv->gw.bandwidth_down, nla_get_u32(attr));
507 batadv_gw_tvlv_container_update(bat_priv);
510 if (info->attrs[BATADV_ATTR_GW_BANDWIDTH_UP]) {
511 attr = info->attrs[BATADV_ATTR_GW_BANDWIDTH_UP];
513 atomic_set(&bat_priv->gw.bandwidth_up, nla_get_u32(attr));
514 batadv_gw_tvlv_container_update(bat_priv);
517 if (info->attrs[BATADV_ATTR_GW_MODE]) {
520 attr = info->attrs[BATADV_ATTR_GW_MODE];
521 gw_mode = nla_get_u8(attr);
523 if (gw_mode <= BATADV_GW_MODE_SERVER) {
524 /* Invoking batadv_gw_reselect() is not enough to really
525 * de-select the current GW. It will only instruct the
526 * gateway client code to perform a re-election the next
527 * time that this is needed.
529 * When gw client mode is being switched off the current
530 * GW must be de-selected explicitly otherwise no GW_ADD
531 * uevent is thrown on client mode re-activation. This
532 * is operation is performed in
533 * batadv_gw_check_client_stop().
535 batadv_gw_reselect(bat_priv);
537 /* always call batadv_gw_check_client_stop() before
538 * changing the gateway state
540 batadv_gw_check_client_stop(bat_priv);
541 atomic_set(&bat_priv->gw.mode, gw_mode);
542 batadv_gw_tvlv_container_update(bat_priv);
546 if (info->attrs[BATADV_ATTR_GW_SEL_CLASS] &&
547 bat_priv->algo_ops->gw.get_best_gw_node &&
548 bat_priv->algo_ops->gw.is_eligible) {
549 /* setting the GW selection class is allowed only if the routing
550 * algorithm in use implements the GW API
553 u32 sel_class_max = 0xffffffffu;
556 attr = info->attrs[BATADV_ATTR_GW_SEL_CLASS];
557 sel_class = nla_get_u32(attr);
559 if (!bat_priv->algo_ops->gw.store_sel_class)
560 sel_class_max = BATADV_TQ_MAX_VALUE;
562 if (sel_class >= 1 && sel_class <= sel_class_max) {
563 atomic_set(&bat_priv->gw.sel_class, sel_class);
564 batadv_gw_reselect(bat_priv);
568 if (info->attrs[BATADV_ATTR_HOP_PENALTY]) {
569 attr = info->attrs[BATADV_ATTR_HOP_PENALTY];
571 atomic_set(&bat_priv->hop_penalty, nla_get_u8(attr));
574 #ifdef CONFIG_BATMAN_ADV_DEBUG
575 if (info->attrs[BATADV_ATTR_LOG_LEVEL]) {
576 attr = info->attrs[BATADV_ATTR_LOG_LEVEL];
578 atomic_set(&bat_priv->log_level,
579 nla_get_u32(attr) & BATADV_DBG_ALL);
581 #endif /* CONFIG_BATMAN_ADV_DEBUG */
583 #ifdef CONFIG_BATMAN_ADV_MCAST
584 if (info->attrs[BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED]) {
585 attr = info->attrs[BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED];
587 atomic_set(&bat_priv->multicast_mode, !nla_get_u8(attr));
590 if (info->attrs[BATADV_ATTR_MULTICAST_FANOUT]) {
591 attr = info->attrs[BATADV_ATTR_MULTICAST_FANOUT];
593 atomic_set(&bat_priv->multicast_fanout, nla_get_u32(attr));
595 #endif /* CONFIG_BATMAN_ADV_MCAST */
597 #ifdef CONFIG_BATMAN_ADV_NC
598 if (info->attrs[BATADV_ATTR_NETWORK_CODING_ENABLED]) {
599 attr = info->attrs[BATADV_ATTR_NETWORK_CODING_ENABLED];
601 atomic_set(&bat_priv->network_coding, !!nla_get_u8(attr));
602 batadv_nc_status_update(bat_priv->soft_iface);
604 #endif /* CONFIG_BATMAN_ADV_NC */
606 if (info->attrs[BATADV_ATTR_ORIG_INTERVAL]) {
609 attr = info->attrs[BATADV_ATTR_ORIG_INTERVAL];
610 orig_interval = nla_get_u32(attr);
612 orig_interval = min_t(u32, orig_interval, INT_MAX);
613 orig_interval = max_t(u32, orig_interval, 2 * BATADV_JITTER);
615 atomic_set(&bat_priv->orig_interval, orig_interval);
618 batadv_netlink_notify_mesh(bat_priv);
624 * batadv_netlink_tp_meter_put() - Fill information of started tp_meter session
625 * @msg: netlink message to be sent back
626 * @cookie: tp meter session cookie
628 * Return: 0 on success, < 0 on error
631 batadv_netlink_tp_meter_put(struct sk_buff *msg, u32 cookie)
633 if (nla_put_u32(msg, BATADV_ATTR_TPMETER_COOKIE, cookie))
640 * batadv_netlink_tpmeter_notify() - send tp_meter result via netlink to client
641 * @bat_priv: the bat priv with all the soft interface information
642 * @dst: destination of tp_meter session
643 * @result: reason for tp meter session stop
644 * @test_time: total time of the tp_meter session
645 * @total_bytes: bytes acked to the receiver
646 * @cookie: cookie of tp_meter session
648 * Return: 0 on success, < 0 on error
650 int batadv_netlink_tpmeter_notify(struct batadv_priv *bat_priv, const u8 *dst,
651 u8 result, u32 test_time, u64 total_bytes,
658 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
662 hdr = genlmsg_put(msg, 0, 0, &batadv_netlink_family, 0,
663 BATADV_CMD_TP_METER);
669 if (nla_put_u32(msg, BATADV_ATTR_TPMETER_COOKIE, cookie))
670 goto nla_put_failure;
672 if (nla_put_u32(msg, BATADV_ATTR_TPMETER_TEST_TIME, test_time))
673 goto nla_put_failure;
675 if (nla_put_u64_64bit(msg, BATADV_ATTR_TPMETER_BYTES, total_bytes,
677 goto nla_put_failure;
679 if (nla_put_u8(msg, BATADV_ATTR_TPMETER_RESULT, result))
680 goto nla_put_failure;
682 if (nla_put(msg, BATADV_ATTR_ORIG_ADDRESS, ETH_ALEN, dst))
683 goto nla_put_failure;
685 genlmsg_end(msg, hdr);
687 genlmsg_multicast_netns(&batadv_netlink_family,
688 dev_net(bat_priv->soft_iface), msg, 0,
689 BATADV_NL_MCGRP_TPMETER, GFP_KERNEL);
694 genlmsg_cancel(msg, hdr);
703 * batadv_netlink_tp_meter_start() - Start a new tp_meter session
704 * @skb: received netlink message
705 * @info: receiver information
707 * Return: 0 on success, < 0 on error
710 batadv_netlink_tp_meter_start(struct sk_buff *skb, struct genl_info *info)
712 struct batadv_priv *bat_priv = info->user_ptr[0];
713 struct sk_buff *msg = NULL;
720 if (!info->attrs[BATADV_ATTR_ORIG_ADDRESS])
723 if (!info->attrs[BATADV_ATTR_TPMETER_TEST_TIME])
726 dst = nla_data(info->attrs[BATADV_ATTR_ORIG_ADDRESS]);
728 test_length = nla_get_u32(info->attrs[BATADV_ATTR_TPMETER_TEST_TIME]);
730 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
736 msg_head = genlmsg_put(msg, info->snd_portid, info->snd_seq,
737 &batadv_netlink_family, 0,
738 BATADV_CMD_TP_METER);
744 batadv_tp_start(bat_priv, dst, test_length, &cookie);
746 ret = batadv_netlink_tp_meter_put(msg, cookie);
755 genlmsg_end(msg, msg_head);
756 return genlmsg_reply(msg, info);
760 * batadv_netlink_tp_meter_cancel() - Cancel a running tp_meter session
761 * @skb: received netlink message
762 * @info: receiver information
764 * Return: 0 on success, < 0 on error
767 batadv_netlink_tp_meter_cancel(struct sk_buff *skb, struct genl_info *info)
769 struct batadv_priv *bat_priv = info->user_ptr[0];
773 if (!info->attrs[BATADV_ATTR_ORIG_ADDRESS])
776 dst = nla_data(info->attrs[BATADV_ATTR_ORIG_ADDRESS]);
778 batadv_tp_stop(bat_priv, dst, BATADV_TP_REASON_CANCEL);
784 * batadv_netlink_hardif_fill() - Fill message with hardif attributes
785 * @msg: Netlink message to dump into
786 * @bat_priv: the bat priv with all the soft interface information
787 * @hard_iface: hard interface which was modified
788 * @cmd: type of message to generate
789 * @portid: Port making netlink request
790 * @seq: sequence number for message
791 * @flags: Additional flags for message
792 * @cb: Control block containing additional options
794 * Return: 0 on success or negative error number in case of failure
796 static int batadv_netlink_hardif_fill(struct sk_buff *msg,
797 struct batadv_priv *bat_priv,
798 struct batadv_hard_iface *hard_iface,
799 enum batadv_nl_commands cmd,
800 u32 portid, u32 seq, int flags,
801 struct netlink_callback *cb)
803 struct net_device *net_dev = hard_iface->net_dev;
806 hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, flags, cmd);
811 genl_dump_check_consistent(cb, hdr);
813 if (nla_put_u32(msg, BATADV_ATTR_MESH_IFINDEX,
814 bat_priv->soft_iface->ifindex))
815 goto nla_put_failure;
817 if (nla_put_u32(msg, BATADV_ATTR_HARD_IFINDEX,
819 nla_put_string(msg, BATADV_ATTR_HARD_IFNAME,
821 nla_put(msg, BATADV_ATTR_HARD_ADDRESS, ETH_ALEN,
823 goto nla_put_failure;
825 if (hard_iface->if_status == BATADV_IF_ACTIVE) {
826 if (nla_put_flag(msg, BATADV_ATTR_ACTIVE))
827 goto nla_put_failure;
830 if (nla_put_u8(msg, BATADV_ATTR_HOP_PENALTY,
831 atomic_read(&hard_iface->hop_penalty)))
832 goto nla_put_failure;
834 #ifdef CONFIG_BATMAN_ADV_BATMAN_V
835 if (nla_put_u32(msg, BATADV_ATTR_ELP_INTERVAL,
836 atomic_read(&hard_iface->bat_v.elp_interval)))
837 goto nla_put_failure;
839 if (nla_put_u32(msg, BATADV_ATTR_THROUGHPUT_OVERRIDE,
840 atomic_read(&hard_iface->bat_v.throughput_override)))
841 goto nla_put_failure;
842 #endif /* CONFIG_BATMAN_ADV_BATMAN_V */
844 genlmsg_end(msg, hdr);
848 genlmsg_cancel(msg, hdr);
853 * batadv_netlink_notify_hardif() - send hardif attributes to listener
854 * @bat_priv: the bat priv with all the soft interface information
855 * @hard_iface: hard interface which was modified
857 * Return: 0 on success, < 0 on error
859 int batadv_netlink_notify_hardif(struct batadv_priv *bat_priv,
860 struct batadv_hard_iface *hard_iface)
865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
869 ret = batadv_netlink_hardif_fill(msg, bat_priv, hard_iface,
870 BATADV_CMD_SET_HARDIF, 0, 0, 0, NULL);
876 genlmsg_multicast_netns(&batadv_netlink_family,
877 dev_net(bat_priv->soft_iface), msg, 0,
878 BATADV_NL_MCGRP_CONFIG, GFP_KERNEL);
884 * batadv_netlink_get_hardif() - Get hardif attributes
885 * @skb: Netlink message with request data
886 * @info: receiver information
888 * Return: 0 on success or negative error number in case of failure
890 static int batadv_netlink_get_hardif(struct sk_buff *skb,
891 struct genl_info *info)
893 struct batadv_hard_iface *hard_iface = info->user_ptr[1];
894 struct batadv_priv *bat_priv = info->user_ptr[0];
898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
902 ret = batadv_netlink_hardif_fill(msg, bat_priv, hard_iface,
903 BATADV_CMD_GET_HARDIF,
904 info->snd_portid, info->snd_seq, 0,
911 ret = genlmsg_reply(msg, info);
917 * batadv_netlink_set_hardif() - Set hardif attributes
918 * @skb: Netlink message with request data
919 * @info: receiver information
921 * Return: 0 on success or negative error number in case of failure
923 static int batadv_netlink_set_hardif(struct sk_buff *skb,
924 struct genl_info *info)
926 struct batadv_hard_iface *hard_iface = info->user_ptr[1];
927 struct batadv_priv *bat_priv = info->user_ptr[0];
930 if (info->attrs[BATADV_ATTR_HOP_PENALTY]) {
931 attr = info->attrs[BATADV_ATTR_HOP_PENALTY];
933 atomic_set(&hard_iface->hop_penalty, nla_get_u8(attr));
936 #ifdef CONFIG_BATMAN_ADV_BATMAN_V
938 if (info->attrs[BATADV_ATTR_ELP_INTERVAL]) {
939 attr = info->attrs[BATADV_ATTR_ELP_INTERVAL];
941 atomic_set(&hard_iface->bat_v.elp_interval, nla_get_u32(attr));
944 if (info->attrs[BATADV_ATTR_THROUGHPUT_OVERRIDE]) {
945 attr = info->attrs[BATADV_ATTR_THROUGHPUT_OVERRIDE];
947 atomic_set(&hard_iface->bat_v.throughput_override,
950 #endif /* CONFIG_BATMAN_ADV_BATMAN_V */
952 batadv_netlink_notify_hardif(bat_priv, hard_iface);
958 * batadv_netlink_dump_hardif() - Dump all hard interface into a messages
959 * @msg: Netlink message to dump into
960 * @cb: Parameters from query
962 * Return: error code, or length of reply message on success
965 batadv_netlink_dump_hardif(struct sk_buff *msg, struct netlink_callback *cb)
967 struct net *net = sock_net(cb->skb->sk);
968 struct net_device *soft_iface;
969 struct batadv_hard_iface *hard_iface;
970 struct batadv_priv *bat_priv;
972 int portid = NETLINK_CB(cb->skb).portid;
973 int skip = cb->args[0];
976 ifindex = batadv_netlink_get_ifindex(cb->nlh,
977 BATADV_ATTR_MESH_IFINDEX);
981 soft_iface = dev_get_by_index(net, ifindex);
985 if (!batadv_softif_is_valid(soft_iface)) {
990 bat_priv = netdev_priv(soft_iface);
993 cb->seq = batadv_hardif_generation << 1 | 1;
995 list_for_each_entry(hard_iface, &batadv_hardif_list, list) {
996 if (hard_iface->soft_iface != soft_iface)
1002 if (batadv_netlink_hardif_fill(msg, bat_priv, hard_iface,
1003 BATADV_CMD_GET_HARDIF,
1004 portid, cb->nlh->nlmsg_seq,
1013 dev_put(soft_iface);
1021 * batadv_netlink_vlan_fill() - Fill message with vlan attributes
1022 * @msg: Netlink message to dump into
1023 * @bat_priv: the bat priv with all the soft interface information
1024 * @vlan: vlan which was modified
1025 * @cmd: type of message to generate
1026 * @portid: Port making netlink request
1027 * @seq: sequence number for message
1028 * @flags: Additional flags for message
1030 * Return: 0 on success or negative error number in case of failure
1032 static int batadv_netlink_vlan_fill(struct sk_buff *msg,
1033 struct batadv_priv *bat_priv,
1034 struct batadv_softif_vlan *vlan,
1035 enum batadv_nl_commands cmd,
1036 u32 portid, u32 seq, int flags)
1040 hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, flags, cmd);
1044 if (nla_put_u32(msg, BATADV_ATTR_MESH_IFINDEX,
1045 bat_priv->soft_iface->ifindex))
1046 goto nla_put_failure;
1048 if (nla_put_u32(msg, BATADV_ATTR_VLANID, vlan->vid & VLAN_VID_MASK))
1049 goto nla_put_failure;
1051 if (nla_put_u8(msg, BATADV_ATTR_AP_ISOLATION_ENABLED,
1052 !!atomic_read(&vlan->ap_isolation)))
1053 goto nla_put_failure;
1055 genlmsg_end(msg, hdr);
1059 genlmsg_cancel(msg, hdr);
1064 * batadv_netlink_notify_vlan() - send vlan attributes to listener
1065 * @bat_priv: the bat priv with all the soft interface information
1066 * @vlan: vlan which was modified
1068 * Return: 0 on success, < 0 on error
1070 int batadv_netlink_notify_vlan(struct batadv_priv *bat_priv,
1071 struct batadv_softif_vlan *vlan)
1073 struct sk_buff *msg;
1076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1080 ret = batadv_netlink_vlan_fill(msg, bat_priv, vlan,
1081 BATADV_CMD_SET_VLAN, 0, 0, 0);
1087 genlmsg_multicast_netns(&batadv_netlink_family,
1088 dev_net(bat_priv->soft_iface), msg, 0,
1089 BATADV_NL_MCGRP_CONFIG, GFP_KERNEL);
1095 * batadv_netlink_get_vlan() - Get vlan attributes
1096 * @skb: Netlink message with request data
1097 * @info: receiver information
1099 * Return: 0 on success or negative error number in case of failure
1101 static int batadv_netlink_get_vlan(struct sk_buff *skb, struct genl_info *info)
1103 struct batadv_softif_vlan *vlan = info->user_ptr[1];
1104 struct batadv_priv *bat_priv = info->user_ptr[0];
1105 struct sk_buff *msg;
1108 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1112 ret = batadv_netlink_vlan_fill(msg, bat_priv, vlan, BATADV_CMD_GET_VLAN,
1113 info->snd_portid, info->snd_seq, 0);
1119 ret = genlmsg_reply(msg, info);
1125 * batadv_netlink_set_vlan() - Get vlan attributes
1126 * @skb: Netlink message with request data
1127 * @info: receiver information
1129 * Return: 0 on success or negative error number in case of failure
1131 static int batadv_netlink_set_vlan(struct sk_buff *skb, struct genl_info *info)
1133 struct batadv_softif_vlan *vlan = info->user_ptr[1];
1134 struct batadv_priv *bat_priv = info->user_ptr[0];
1135 struct nlattr *attr;
1137 if (info->attrs[BATADV_ATTR_AP_ISOLATION_ENABLED]) {
1138 attr = info->attrs[BATADV_ATTR_AP_ISOLATION_ENABLED];
1140 atomic_set(&vlan->ap_isolation, !!nla_get_u8(attr));
1143 batadv_netlink_notify_vlan(bat_priv, vlan);
1149 * batadv_get_softif_from_info() - Retrieve soft interface from genl attributes
1150 * @net: the applicable net namespace
1151 * @info: receiver information
1153 * Return: Pointer to soft interface (with increased refcnt) on success, error
1156 static struct net_device *
1157 batadv_get_softif_from_info(struct net *net, struct genl_info *info)
1159 struct net_device *soft_iface;
1162 if (!info->attrs[BATADV_ATTR_MESH_IFINDEX])
1163 return ERR_PTR(-EINVAL);
1165 ifindex = nla_get_u32(info->attrs[BATADV_ATTR_MESH_IFINDEX]);
1167 soft_iface = dev_get_by_index(net, ifindex);
1169 return ERR_PTR(-ENODEV);
1171 if (!batadv_softif_is_valid(soft_iface))
1172 goto err_put_softif;
1177 dev_put(soft_iface);
1179 return ERR_PTR(-EINVAL);
1183 * batadv_get_hardif_from_info() - Retrieve hardif from genl attributes
1184 * @bat_priv: the bat priv with all the soft interface information
1185 * @net: the applicable net namespace
1186 * @info: receiver information
1188 * Return: Pointer to hard interface (with increased refcnt) on success, error
1191 static struct batadv_hard_iface *
1192 batadv_get_hardif_from_info(struct batadv_priv *bat_priv, struct net *net,
1193 struct genl_info *info)
1195 struct batadv_hard_iface *hard_iface;
1196 struct net_device *hard_dev;
1197 unsigned int hardif_index;
1199 if (!info->attrs[BATADV_ATTR_HARD_IFINDEX])
1200 return ERR_PTR(-EINVAL);
1202 hardif_index = nla_get_u32(info->attrs[BATADV_ATTR_HARD_IFINDEX]);
1204 hard_dev = dev_get_by_index(net, hardif_index);
1206 return ERR_PTR(-ENODEV);
1208 hard_iface = batadv_hardif_get_by_netdev(hard_dev);
1210 goto err_put_harddev;
1212 if (hard_iface->soft_iface != bat_priv->soft_iface)
1213 goto err_put_hardif;
1215 /* hard_dev is referenced by hard_iface and not needed here */
1221 batadv_hardif_put(hard_iface);
1225 return ERR_PTR(-EINVAL);
1229 * batadv_get_vlan_from_info() - Retrieve vlan from genl attributes
1230 * @bat_priv: the bat priv with all the soft interface information
1231 * @net: the applicable net namespace
1232 * @info: receiver information
1234 * Return: Pointer to vlan on success (with increased refcnt), error pointer
1237 static struct batadv_softif_vlan *
1238 batadv_get_vlan_from_info(struct batadv_priv *bat_priv, struct net *net,
1239 struct genl_info *info)
1241 struct batadv_softif_vlan *vlan;
1244 if (!info->attrs[BATADV_ATTR_VLANID])
1245 return ERR_PTR(-EINVAL);
1247 vid = nla_get_u16(info->attrs[BATADV_ATTR_VLANID]);
1249 vlan = batadv_softif_vlan_get(bat_priv, vid | BATADV_VLAN_HAS_TAG);
1251 return ERR_PTR(-ENOENT);
1257 * batadv_pre_doit() - Prepare batman-adv genl doit request
1258 * @ops: requested netlink operation
1259 * @skb: Netlink message with request data
1260 * @info: receiver information
1262 * Return: 0 on success or negative error number in case of failure
1264 static int batadv_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
1265 struct genl_info *info)
1267 struct net *net = genl_info_net(info);
1268 struct batadv_hard_iface *hard_iface;
1269 struct batadv_priv *bat_priv = NULL;
1270 struct batadv_softif_vlan *vlan;
1271 struct net_device *soft_iface;
1276 user_ptr1_flags = BATADV_FLAG_NEED_HARDIF | BATADV_FLAG_NEED_VLAN;
1277 if (WARN_ON(hweight8(ops->internal_flags & user_ptr1_flags) > 1))
1280 mesh_dep_flags = BATADV_FLAG_NEED_HARDIF | BATADV_FLAG_NEED_VLAN;
1281 if (WARN_ON((ops->internal_flags & mesh_dep_flags) &&
1282 (~ops->internal_flags & BATADV_FLAG_NEED_MESH)))
1285 if (ops->internal_flags & BATADV_FLAG_NEED_MESH) {
1286 soft_iface = batadv_get_softif_from_info(net, info);
1287 if (IS_ERR(soft_iface))
1288 return PTR_ERR(soft_iface);
1290 bat_priv = netdev_priv(soft_iface);
1291 info->user_ptr[0] = bat_priv;
1294 if (ops->internal_flags & BATADV_FLAG_NEED_HARDIF) {
1295 hard_iface = batadv_get_hardif_from_info(bat_priv, net, info);
1296 if (IS_ERR(hard_iface)) {
1297 ret = PTR_ERR(hard_iface);
1298 goto err_put_softif;
1301 info->user_ptr[1] = hard_iface;
1304 if (ops->internal_flags & BATADV_FLAG_NEED_VLAN) {
1305 vlan = batadv_get_vlan_from_info(bat_priv, net, info);
1307 ret = PTR_ERR(vlan);
1308 goto err_put_softif;
1311 info->user_ptr[1] = vlan;
1318 dev_put(bat_priv->soft_iface);
1324 * batadv_post_doit() - End batman-adv genl doit request
1325 * @ops: requested netlink operation
1326 * @skb: Netlink message with request data
1327 * @info: receiver information
1329 static void batadv_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
1330 struct genl_info *info)
1332 struct batadv_hard_iface *hard_iface;
1333 struct batadv_softif_vlan *vlan;
1334 struct batadv_priv *bat_priv;
1336 if (ops->internal_flags & BATADV_FLAG_NEED_HARDIF &&
1337 info->user_ptr[1]) {
1338 hard_iface = info->user_ptr[1];
1340 batadv_hardif_put(hard_iface);
1343 if (ops->internal_flags & BATADV_FLAG_NEED_VLAN && info->user_ptr[1]) {
1344 vlan = info->user_ptr[1];
1345 batadv_softif_vlan_put(vlan);
1348 if (ops->internal_flags & BATADV_FLAG_NEED_MESH && info->user_ptr[0]) {
1349 bat_priv = info->user_ptr[0];
1350 dev_put(bat_priv->soft_iface);
1354 static const struct genl_small_ops batadv_netlink_ops[] = {
1356 .cmd = BATADV_CMD_GET_MESH,
1357 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1358 /* can be retrieved by unprivileged users */
1359 .doit = batadv_netlink_get_mesh,
1360 .internal_flags = BATADV_FLAG_NEED_MESH,
1363 .cmd = BATADV_CMD_TP_METER,
1364 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1365 .flags = GENL_ADMIN_PERM,
1366 .doit = batadv_netlink_tp_meter_start,
1367 .internal_flags = BATADV_FLAG_NEED_MESH,
1370 .cmd = BATADV_CMD_TP_METER_CANCEL,
1371 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1372 .flags = GENL_ADMIN_PERM,
1373 .doit = batadv_netlink_tp_meter_cancel,
1374 .internal_flags = BATADV_FLAG_NEED_MESH,
1377 .cmd = BATADV_CMD_GET_ROUTING_ALGOS,
1378 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1379 .flags = GENL_ADMIN_PERM,
1380 .dumpit = batadv_algo_dump,
1383 .cmd = BATADV_CMD_GET_HARDIF,
1384 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1385 /* can be retrieved by unprivileged users */
1386 .dumpit = batadv_netlink_dump_hardif,
1387 .doit = batadv_netlink_get_hardif,
1388 .internal_flags = BATADV_FLAG_NEED_MESH |
1389 BATADV_FLAG_NEED_HARDIF,
1392 .cmd = BATADV_CMD_GET_TRANSTABLE_LOCAL,
1393 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1394 .flags = GENL_ADMIN_PERM,
1395 .dumpit = batadv_tt_local_dump,
1398 .cmd = BATADV_CMD_GET_TRANSTABLE_GLOBAL,
1399 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1400 .flags = GENL_ADMIN_PERM,
1401 .dumpit = batadv_tt_global_dump,
1404 .cmd = BATADV_CMD_GET_ORIGINATORS,
1405 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1406 .flags = GENL_ADMIN_PERM,
1407 .dumpit = batadv_orig_dump,
1410 .cmd = BATADV_CMD_GET_NEIGHBORS,
1411 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1412 .flags = GENL_ADMIN_PERM,
1413 .dumpit = batadv_hardif_neigh_dump,
1416 .cmd = BATADV_CMD_GET_GATEWAYS,
1417 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1418 .flags = GENL_ADMIN_PERM,
1419 .dumpit = batadv_gw_dump,
1422 .cmd = BATADV_CMD_GET_BLA_CLAIM,
1423 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1424 .flags = GENL_ADMIN_PERM,
1425 .dumpit = batadv_bla_claim_dump,
1428 .cmd = BATADV_CMD_GET_BLA_BACKBONE,
1429 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1430 .flags = GENL_ADMIN_PERM,
1431 .dumpit = batadv_bla_backbone_dump,
1434 .cmd = BATADV_CMD_GET_DAT_CACHE,
1435 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1436 .flags = GENL_ADMIN_PERM,
1437 .dumpit = batadv_dat_cache_dump,
1440 .cmd = BATADV_CMD_GET_MCAST_FLAGS,
1441 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1442 .flags = GENL_ADMIN_PERM,
1443 .dumpit = batadv_mcast_flags_dump,
1446 .cmd = BATADV_CMD_SET_MESH,
1447 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1448 .flags = GENL_ADMIN_PERM,
1449 .doit = batadv_netlink_set_mesh,
1450 .internal_flags = BATADV_FLAG_NEED_MESH,
1453 .cmd = BATADV_CMD_SET_HARDIF,
1454 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1455 .flags = GENL_ADMIN_PERM,
1456 .doit = batadv_netlink_set_hardif,
1457 .internal_flags = BATADV_FLAG_NEED_MESH |
1458 BATADV_FLAG_NEED_HARDIF,
1461 .cmd = BATADV_CMD_GET_VLAN,
1462 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1463 /* can be retrieved by unprivileged users */
1464 .doit = batadv_netlink_get_vlan,
1465 .internal_flags = BATADV_FLAG_NEED_MESH |
1466 BATADV_FLAG_NEED_VLAN,
1469 .cmd = BATADV_CMD_SET_VLAN,
1470 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
1471 .flags = GENL_ADMIN_PERM,
1472 .doit = batadv_netlink_set_vlan,
1473 .internal_flags = BATADV_FLAG_NEED_MESH |
1474 BATADV_FLAG_NEED_VLAN,
1478 struct genl_family batadv_netlink_family __ro_after_init = {
1480 .name = BATADV_NL_NAME,
1482 .maxattr = BATADV_ATTR_MAX,
1483 .policy = batadv_netlink_policy,
1485 .pre_doit = batadv_pre_doit,
1486 .post_doit = batadv_post_doit,
1487 .module = THIS_MODULE,
1488 .small_ops = batadv_netlink_ops,
1489 .n_small_ops = ARRAY_SIZE(batadv_netlink_ops),
1490 .mcgrps = batadv_netlink_mcgrps,
1491 .n_mcgrps = ARRAY_SIZE(batadv_netlink_mcgrps),
1495 * batadv_netlink_register() - register batadv genl netlink family
1497 void __init batadv_netlink_register(void)
1501 ret = genl_register_family(&batadv_netlink_family);
1503 pr_warn("unable to register netlink family");
1507 * batadv_netlink_unregister() - unregister batadv genl netlink family
1509 void batadv_netlink_unregister(void)
1511 genl_unregister_family(&batadv_netlink_family);