1 // SPDX-License-Identifier: GPL-2.0-only
4 #include <linux/ethtool_netlink.h>
7 static struct genl_family ethtool_genl_family;
9 static bool ethnl_ok __read_mostly;
10 static u32 ethnl_bcast_seq;
12 #define ETHTOOL_FLAGS_BASIC (ETHTOOL_FLAG_COMPACT_BITSETS | \
13 ETHTOOL_FLAG_OMIT_REPLY)
14 #define ETHTOOL_FLAGS_STATS (ETHTOOL_FLAGS_BASIC | ETHTOOL_FLAG_STATS)
16 const struct nla_policy ethnl_header_policy[] = {
17 [ETHTOOL_A_HEADER_DEV_INDEX] = { .type = NLA_U32 },
18 [ETHTOOL_A_HEADER_DEV_NAME] = { .type = NLA_NUL_STRING,
19 .len = ALTIFNAMSIZ - 1 },
20 [ETHTOOL_A_HEADER_FLAGS] = NLA_POLICY_MASK(NLA_U32,
24 const struct nla_policy ethnl_header_policy_stats[] = {
25 [ETHTOOL_A_HEADER_DEV_INDEX] = { .type = NLA_U32 },
26 [ETHTOOL_A_HEADER_DEV_NAME] = { .type = NLA_NUL_STRING,
27 .len = ALTIFNAMSIZ - 1 },
28 [ETHTOOL_A_HEADER_FLAGS] = NLA_POLICY_MASK(NLA_U32,
33 * ethnl_parse_header_dev_get() - parse request header
34 * @req_info: structure to put results into
35 * @header: nest attribute with request header
37 * @extack: netlink extack for error reporting
38 * @require_dev: fail if no device identified in header
40 * Parse request header in nested attribute @nest and puts results into
41 * the structure pointed to by @req_info. Extack from @info is used for error
42 * reporting. If req_info->dev is not null on return, reference to it has
43 * been taken. If error is returned, *req_info is null initialized and no
46 * Return: 0 on success or negative error code
48 int ethnl_parse_header_dev_get(struct ethnl_req_info *req_info,
49 const struct nlattr *header, struct net *net,
50 struct netlink_ext_ack *extack, bool require_dev)
52 struct nlattr *tb[ARRAY_SIZE(ethnl_header_policy)];
53 const struct nlattr *devname_attr;
54 struct net_device *dev = NULL;
59 NL_SET_ERR_MSG(extack, "request header missing");
62 /* No validation here, command policy should have a nested policy set
63 * for the header, therefore validation should have already been done.
65 ret = nla_parse_nested(tb, ARRAY_SIZE(ethnl_header_policy) - 1, header,
69 if (tb[ETHTOOL_A_HEADER_FLAGS])
70 flags = nla_get_u32(tb[ETHTOOL_A_HEADER_FLAGS]);
72 devname_attr = tb[ETHTOOL_A_HEADER_DEV_NAME];
73 if (tb[ETHTOOL_A_HEADER_DEV_INDEX]) {
74 u32 ifindex = nla_get_u32(tb[ETHTOOL_A_HEADER_DEV_INDEX]);
76 dev = dev_get_by_index(net, ifindex);
78 NL_SET_ERR_MSG_ATTR(extack,
79 tb[ETHTOOL_A_HEADER_DEV_INDEX],
80 "no device matches ifindex");
83 /* if both ifindex and ifname are passed, they must match */
85 strncmp(dev->name, nla_data(devname_attr), IFNAMSIZ)) {
87 NL_SET_ERR_MSG_ATTR(extack, header,
88 "ifindex and name do not match");
91 } else if (devname_attr) {
92 dev = dev_get_by_name(net, nla_data(devname_attr));
94 NL_SET_ERR_MSG_ATTR(extack, devname_attr,
95 "no device matches name");
98 } else if (require_dev) {
99 NL_SET_ERR_MSG_ATTR(extack, header,
100 "neither ifindex nor name specified");
104 if (dev && !netif_device_present(dev)) {
106 NL_SET_ERR_MSG(extack, "device not present");
111 req_info->flags = flags;
116 * ethnl_fill_reply_header() - Put common header into a reply message
117 * @skb: skb with the message
118 * @dev: network device to describe in header
119 * @attrtype: attribute type to use for the nest
121 * Create a nested attribute with attributes describing given network device.
123 * Return: 0 on success, error value (-EMSGSIZE only) on error
125 int ethnl_fill_reply_header(struct sk_buff *skb, struct net_device *dev,
132 nest = nla_nest_start(skb, attrtype);
136 if (nla_put_u32(skb, ETHTOOL_A_HEADER_DEV_INDEX, (u32)dev->ifindex) ||
137 nla_put_string(skb, ETHTOOL_A_HEADER_DEV_NAME, dev->name))
138 goto nla_put_failure;
139 /* If more attributes are put into reply header, ethnl_header_size()
140 * must be updated to account for them.
143 nla_nest_end(skb, nest);
147 nla_nest_cancel(skb, nest);
152 * ethnl_reply_init() - Create skb for a reply and fill device identification
153 * @payload: payload length (without netlink and genetlink header)
154 * @dev: device the reply is about (may be null)
155 * @cmd: ETHTOOL_MSG_* message type for reply
156 * @hdr_attrtype: attribute type for common header
157 * @info: genetlink info of the received packet we respond to
158 * @ehdrp: place to store payload pointer returned by genlmsg_new()
160 * Return: pointer to allocated skb on success, NULL on error
162 struct sk_buff *ethnl_reply_init(size_t payload, struct net_device *dev, u8 cmd,
163 u16 hdr_attrtype, struct genl_info *info,
168 skb = genlmsg_new(payload, GFP_KERNEL);
171 *ehdrp = genlmsg_put_reply(skb, info, ðtool_genl_family, 0, cmd);
178 ret = ethnl_fill_reply_header(skb, dev, hdr_attrtype);
188 GENL_SET_ERR_MSG(info, "failed to setup reply message");
192 void *ethnl_dump_put(struct sk_buff *skb, struct netlink_callback *cb, u8 cmd)
194 return genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
195 ðtool_genl_family, 0, cmd);
198 void *ethnl_bcastmsg_put(struct sk_buff *skb, u8 cmd)
200 return genlmsg_put(skb, 0, ++ethnl_bcast_seq, ðtool_genl_family, 0,
204 int ethnl_multicast(struct sk_buff *skb, struct net_device *dev)
206 return genlmsg_multicast_netns(ðtool_genl_family, dev_net(dev), skb,
207 0, ETHNL_MCGRP_MONITOR, GFP_KERNEL);
210 /* GET request helpers */
213 * struct ethnl_dump_ctx - context structure for generic dumpit() callback
214 * @ops: request ops of currently processed message type
215 * @req_info: parsed request header of processed request
216 * @reply_data: data needed to compose the reply
217 * @pos_hash: saved iteration position - hashbucket
218 * @pos_idx: saved iteration position - index
220 * These parameters are kept in struct netlink_callback as context preserved
221 * between iterations. They are initialized by ethnl_default_start() and used
222 * in ethnl_default_dumpit() and ethnl_default_done().
224 struct ethnl_dump_ctx {
225 const struct ethnl_request_ops *ops;
226 struct ethnl_req_info *req_info;
227 struct ethnl_reply_data *reply_data;
232 static const struct ethnl_request_ops *
233 ethnl_default_requests[__ETHTOOL_MSG_USER_CNT] = {
234 [ETHTOOL_MSG_STRSET_GET] = ðnl_strset_request_ops,
235 [ETHTOOL_MSG_LINKINFO_GET] = ðnl_linkinfo_request_ops,
236 [ETHTOOL_MSG_LINKMODES_GET] = ðnl_linkmodes_request_ops,
237 [ETHTOOL_MSG_LINKSTATE_GET] = ðnl_linkstate_request_ops,
238 [ETHTOOL_MSG_DEBUG_GET] = ðnl_debug_request_ops,
239 [ETHTOOL_MSG_WOL_GET] = ðnl_wol_request_ops,
240 [ETHTOOL_MSG_FEATURES_GET] = ðnl_features_request_ops,
241 [ETHTOOL_MSG_PRIVFLAGS_GET] = ðnl_privflags_request_ops,
242 [ETHTOOL_MSG_RINGS_GET] = ðnl_rings_request_ops,
243 [ETHTOOL_MSG_CHANNELS_GET] = ðnl_channels_request_ops,
244 [ETHTOOL_MSG_COALESCE_GET] = ðnl_coalesce_request_ops,
245 [ETHTOOL_MSG_PAUSE_GET] = ðnl_pause_request_ops,
246 [ETHTOOL_MSG_EEE_GET] = ðnl_eee_request_ops,
247 [ETHTOOL_MSG_FEC_GET] = ðnl_fec_request_ops,
248 [ETHTOOL_MSG_TSINFO_GET] = ðnl_tsinfo_request_ops,
249 [ETHTOOL_MSG_MODULE_EEPROM_GET] = ðnl_module_eeprom_request_ops,
250 [ETHTOOL_MSG_STATS_GET] = ðnl_stats_request_ops,
253 static struct ethnl_dump_ctx *ethnl_dump_context(struct netlink_callback *cb)
255 return (struct ethnl_dump_ctx *)cb->ctx;
259 * ethnl_default_parse() - Parse request message
260 * @req_info: pointer to structure to put data into
261 * @tb: parsed attributes
262 * @net: request netns
263 * @request_ops: struct request_ops for request type
264 * @extack: netlink extack for error reporting
265 * @require_dev: fail if no device identified in header
267 * Parse universal request header and call request specific ->parse_request()
268 * callback (if defined) to parse the rest of the message.
270 * Return: 0 on success or negative error code
272 static int ethnl_default_parse(struct ethnl_req_info *req_info,
273 struct nlattr **tb, struct net *net,
274 const struct ethnl_request_ops *request_ops,
275 struct netlink_ext_ack *extack, bool require_dev)
279 ret = ethnl_parse_header_dev_get(req_info, tb[request_ops->hdr_attr],
280 net, extack, require_dev);
284 if (request_ops->parse_request) {
285 ret = request_ops->parse_request(req_info, tb, extack);
294 * ethnl_init_reply_data() - Initialize reply data for GET request
295 * @reply_data: pointer to embedded struct ethnl_reply_data
296 * @ops: instance of struct ethnl_request_ops describing the layout
297 * @dev: network device to initialize the reply for
299 * Fills the reply data part with zeros and sets the dev member. Must be called
300 * before calling the ->fill_reply() callback (for each iteration when handling
303 static void ethnl_init_reply_data(struct ethnl_reply_data *reply_data,
304 const struct ethnl_request_ops *ops,
305 struct net_device *dev)
307 memset(reply_data, 0, ops->reply_data_size);
308 reply_data->dev = dev;
311 /* default ->doit() handler for GET type requests */
312 static int ethnl_default_doit(struct sk_buff *skb, struct genl_info *info)
314 struct ethnl_reply_data *reply_data = NULL;
315 struct ethnl_req_info *req_info = NULL;
316 const u8 cmd = info->genlhdr->cmd;
317 const struct ethnl_request_ops *ops;
318 int hdr_len, reply_len;
319 struct sk_buff *rskb;
323 ops = ethnl_default_requests[cmd];
324 if (WARN_ONCE(!ops, "cmd %u has no ethnl_request_ops\n", cmd))
326 req_info = kzalloc(ops->req_info_size, GFP_KERNEL);
329 reply_data = kmalloc(ops->reply_data_size, GFP_KERNEL);
335 ret = ethnl_default_parse(req_info, info->attrs, genl_info_net(info),
336 ops, info->extack, !ops->allow_nodev_do);
339 ethnl_init_reply_data(reply_data, ops, req_info->dev);
342 ret = ops->prepare_data(req_info, reply_data, info);
346 ret = ops->reply_size(req_info, reply_data);
351 rskb = ethnl_reply_init(reply_len + ethnl_reply_header_size(),
352 req_info->dev, ops->reply_cmd,
353 ops->hdr_attr, info, &reply_payload);
357 ret = ops->fill_reply(rskb, req_info, reply_data);
360 WARN_ONCE(rskb->len - hdr_len > reply_len,
361 "ethnl cmd %d: calculated reply length %d, but consumed %d\n",
362 cmd, reply_len, rskb->len - hdr_len);
363 if (ops->cleanup_data)
364 ops->cleanup_data(reply_data);
366 genlmsg_end(rskb, reply_payload);
368 dev_put(req_info->dev);
371 return genlmsg_reply(rskb, info);
374 WARN_ONCE(ret == -EMSGSIZE, "calculated message payload length (%d) not sufficient\n", reply_len);
377 if (ops->cleanup_data)
378 ops->cleanup_data(reply_data);
381 dev_put(req_info->dev);
387 static int ethnl_default_dump_one(struct sk_buff *skb, struct net_device *dev,
388 const struct ethnl_dump_ctx *ctx,
389 struct netlink_callback *cb)
394 ehdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
395 ðtool_genl_family, NLM_F_MULTI,
396 ctx->ops->reply_cmd);
400 ethnl_init_reply_data(ctx->reply_data, ctx->ops, dev);
402 ret = ctx->ops->prepare_data(ctx->req_info, ctx->reply_data, NULL);
406 ret = ethnl_fill_reply_header(skb, dev, ctx->ops->hdr_attr);
409 ret = ctx->ops->fill_reply(skb, ctx->req_info, ctx->reply_data);
412 if (ctx->ops->cleanup_data)
413 ctx->ops->cleanup_data(ctx->reply_data);
414 ctx->reply_data->dev = NULL;
416 genlmsg_cancel(skb, ehdr);
418 genlmsg_end(skb, ehdr);
422 /* Default ->dumpit() handler for GET requests. Device iteration copied from
423 * rtnl_dump_ifinfo(); we have to be more careful about device hashtable
424 * persistence as we cannot guarantee to hold RTNL lock through the whole
425 * function as rtnetnlink does.
427 static int ethnl_default_dumpit(struct sk_buff *skb,
428 struct netlink_callback *cb)
430 struct ethnl_dump_ctx *ctx = ethnl_dump_context(cb);
431 struct net *net = sock_net(skb->sk);
432 int s_idx = ctx->pos_idx;
437 for (h = ctx->pos_hash; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
438 struct hlist_head *head;
439 struct net_device *dev;
442 head = &net->dev_index_head[h];
445 seq = net->dev_base_seq;
448 hlist_for_each_entry(dev, head, index_hlist) {
454 ret = ethnl_default_dump_one(skb, dev, ctx, cb);
457 if (ret == -EOPNOTSUPP)
459 if (likely(skb->len))
465 if (net->dev_base_seq != seq) {
479 nl_dump_check_consistent(cb, nlmsg_hdr(skb));
484 /* generic ->start() handler for GET requests */
485 static int ethnl_default_start(struct netlink_callback *cb)
487 const struct genl_dumpit_info *info = genl_dumpit_info(cb);
488 struct ethnl_dump_ctx *ctx = ethnl_dump_context(cb);
489 struct ethnl_reply_data *reply_data;
490 const struct ethnl_request_ops *ops;
491 struct ethnl_req_info *req_info;
492 struct genlmsghdr *ghdr;
495 BUILD_BUG_ON(sizeof(*ctx) > sizeof(cb->ctx));
497 ghdr = nlmsg_data(cb->nlh);
498 ops = ethnl_default_requests[ghdr->cmd];
499 if (WARN_ONCE(!ops, "cmd %u has no ethnl_request_ops\n", ghdr->cmd))
501 req_info = kzalloc(ops->req_info_size, GFP_KERNEL);
504 reply_data = kmalloc(ops->reply_data_size, GFP_KERNEL);
510 ret = ethnl_default_parse(req_info, info->attrs, sock_net(cb->skb->sk),
511 ops, cb->extack, false);
513 /* We ignore device specification in dump requests but as the
514 * same parser as for non-dump (doit) requests is used, it
515 * would take reference to the device if it finds one
517 dev_put(req_info->dev);
518 req_info->dev = NULL;
521 goto free_reply_data;
524 ctx->req_info = req_info;
525 ctx->reply_data = reply_data;
539 /* default ->done() handler for GET requests */
540 static int ethnl_default_done(struct netlink_callback *cb)
542 struct ethnl_dump_ctx *ctx = ethnl_dump_context(cb);
544 kfree(ctx->reply_data);
545 kfree(ctx->req_info);
550 static const struct ethnl_request_ops *
551 ethnl_default_notify_ops[ETHTOOL_MSG_KERNEL_MAX + 1] = {
552 [ETHTOOL_MSG_LINKINFO_NTF] = ðnl_linkinfo_request_ops,
553 [ETHTOOL_MSG_LINKMODES_NTF] = ðnl_linkmodes_request_ops,
554 [ETHTOOL_MSG_DEBUG_NTF] = ðnl_debug_request_ops,
555 [ETHTOOL_MSG_WOL_NTF] = ðnl_wol_request_ops,
556 [ETHTOOL_MSG_FEATURES_NTF] = ðnl_features_request_ops,
557 [ETHTOOL_MSG_PRIVFLAGS_NTF] = ðnl_privflags_request_ops,
558 [ETHTOOL_MSG_RINGS_NTF] = ðnl_rings_request_ops,
559 [ETHTOOL_MSG_CHANNELS_NTF] = ðnl_channels_request_ops,
560 [ETHTOOL_MSG_COALESCE_NTF] = ðnl_coalesce_request_ops,
561 [ETHTOOL_MSG_PAUSE_NTF] = ðnl_pause_request_ops,
562 [ETHTOOL_MSG_EEE_NTF] = ðnl_eee_request_ops,
563 [ETHTOOL_MSG_FEC_NTF] = ðnl_fec_request_ops,
566 /* default notification handler */
567 static void ethnl_default_notify(struct net_device *dev, unsigned int cmd,
570 struct ethnl_reply_data *reply_data;
571 const struct ethnl_request_ops *ops;
572 struct ethnl_req_info *req_info;
578 if (WARN_ONCE(cmd > ETHTOOL_MSG_KERNEL_MAX ||
579 !ethnl_default_notify_ops[cmd],
580 "unexpected notification type %u\n", cmd))
582 ops = ethnl_default_notify_ops[cmd];
583 req_info = kzalloc(ops->req_info_size, GFP_KERNEL);
586 reply_data = kmalloc(ops->reply_data_size, GFP_KERNEL);
593 req_info->flags |= ETHTOOL_FLAG_COMPACT_BITSETS;
595 ethnl_init_reply_data(reply_data, ops, dev);
596 ret = ops->prepare_data(req_info, reply_data, NULL);
599 ret = ops->reply_size(req_info, reply_data);
602 reply_len = ret + ethnl_reply_header_size();
604 skb = genlmsg_new(reply_len, GFP_KERNEL);
607 reply_payload = ethnl_bcastmsg_put(skb, cmd);
610 ret = ethnl_fill_reply_header(skb, dev, ops->hdr_attr);
613 ret = ops->fill_reply(skb, req_info, reply_data);
616 if (ops->cleanup_data)
617 ops->cleanup_data(reply_data);
619 genlmsg_end(skb, reply_payload);
622 ethnl_multicast(skb, dev);
626 WARN_ONCE(ret == -EMSGSIZE,
627 "calculated message payload length (%d) not sufficient\n",
632 if (ops->cleanup_data)
633 ops->cleanup_data(reply_data);
641 typedef void (*ethnl_notify_handler_t)(struct net_device *dev, unsigned int cmd,
644 static const ethnl_notify_handler_t ethnl_notify_handlers[] = {
645 [ETHTOOL_MSG_LINKINFO_NTF] = ethnl_default_notify,
646 [ETHTOOL_MSG_LINKMODES_NTF] = ethnl_default_notify,
647 [ETHTOOL_MSG_DEBUG_NTF] = ethnl_default_notify,
648 [ETHTOOL_MSG_WOL_NTF] = ethnl_default_notify,
649 [ETHTOOL_MSG_FEATURES_NTF] = ethnl_default_notify,
650 [ETHTOOL_MSG_PRIVFLAGS_NTF] = ethnl_default_notify,
651 [ETHTOOL_MSG_RINGS_NTF] = ethnl_default_notify,
652 [ETHTOOL_MSG_CHANNELS_NTF] = ethnl_default_notify,
653 [ETHTOOL_MSG_COALESCE_NTF] = ethnl_default_notify,
654 [ETHTOOL_MSG_PAUSE_NTF] = ethnl_default_notify,
655 [ETHTOOL_MSG_EEE_NTF] = ethnl_default_notify,
656 [ETHTOOL_MSG_FEC_NTF] = ethnl_default_notify,
659 void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *data)
661 if (unlikely(!ethnl_ok))
665 if (likely(cmd < ARRAY_SIZE(ethnl_notify_handlers) &&
666 ethnl_notify_handlers[cmd]))
667 ethnl_notify_handlers[cmd](dev, cmd, data);
669 WARN_ONCE(1, "notification %u not implemented (dev=%s)\n",
670 cmd, netdev_name(dev));
672 EXPORT_SYMBOL(ethtool_notify);
674 static void ethnl_notify_features(struct netdev_notifier_info *info)
676 struct net_device *dev = netdev_notifier_info_to_dev(info);
678 ethtool_notify(dev, ETHTOOL_MSG_FEATURES_NTF, NULL);
681 static int ethnl_netdev_event(struct notifier_block *this, unsigned long event,
685 case NETDEV_FEAT_CHANGE:
686 ethnl_notify_features(ptr);
693 static struct notifier_block ethnl_netdev_notifier = {
694 .notifier_call = ethnl_netdev_event,
697 /* genetlink setup */
699 static const struct genl_ops ethtool_genl_ops[] = {
701 .cmd = ETHTOOL_MSG_STRSET_GET,
702 .doit = ethnl_default_doit,
703 .start = ethnl_default_start,
704 .dumpit = ethnl_default_dumpit,
705 .done = ethnl_default_done,
706 .policy = ethnl_strset_get_policy,
707 .maxattr = ARRAY_SIZE(ethnl_strset_get_policy) - 1,
710 .cmd = ETHTOOL_MSG_LINKINFO_GET,
711 .doit = ethnl_default_doit,
712 .start = ethnl_default_start,
713 .dumpit = ethnl_default_dumpit,
714 .done = ethnl_default_done,
715 .policy = ethnl_linkinfo_get_policy,
716 .maxattr = ARRAY_SIZE(ethnl_linkinfo_get_policy) - 1,
719 .cmd = ETHTOOL_MSG_LINKINFO_SET,
720 .flags = GENL_UNS_ADMIN_PERM,
721 .doit = ethnl_set_linkinfo,
722 .policy = ethnl_linkinfo_set_policy,
723 .maxattr = ARRAY_SIZE(ethnl_linkinfo_set_policy) - 1,
726 .cmd = ETHTOOL_MSG_LINKMODES_GET,
727 .doit = ethnl_default_doit,
728 .start = ethnl_default_start,
729 .dumpit = ethnl_default_dumpit,
730 .done = ethnl_default_done,
731 .policy = ethnl_linkmodes_get_policy,
732 .maxattr = ARRAY_SIZE(ethnl_linkmodes_get_policy) - 1,
735 .cmd = ETHTOOL_MSG_LINKMODES_SET,
736 .flags = GENL_UNS_ADMIN_PERM,
737 .doit = ethnl_set_linkmodes,
738 .policy = ethnl_linkmodes_set_policy,
739 .maxattr = ARRAY_SIZE(ethnl_linkmodes_set_policy) - 1,
742 .cmd = ETHTOOL_MSG_LINKSTATE_GET,
743 .doit = ethnl_default_doit,
744 .start = ethnl_default_start,
745 .dumpit = ethnl_default_dumpit,
746 .done = ethnl_default_done,
747 .policy = ethnl_linkstate_get_policy,
748 .maxattr = ARRAY_SIZE(ethnl_linkstate_get_policy) - 1,
751 .cmd = ETHTOOL_MSG_DEBUG_GET,
752 .doit = ethnl_default_doit,
753 .start = ethnl_default_start,
754 .dumpit = ethnl_default_dumpit,
755 .done = ethnl_default_done,
756 .policy = ethnl_debug_get_policy,
757 .maxattr = ARRAY_SIZE(ethnl_debug_get_policy) - 1,
760 .cmd = ETHTOOL_MSG_DEBUG_SET,
761 .flags = GENL_UNS_ADMIN_PERM,
762 .doit = ethnl_set_debug,
763 .policy = ethnl_debug_set_policy,
764 .maxattr = ARRAY_SIZE(ethnl_debug_set_policy) - 1,
767 .cmd = ETHTOOL_MSG_WOL_GET,
768 .flags = GENL_UNS_ADMIN_PERM,
769 .doit = ethnl_default_doit,
770 .start = ethnl_default_start,
771 .dumpit = ethnl_default_dumpit,
772 .done = ethnl_default_done,
773 .policy = ethnl_wol_get_policy,
774 .maxattr = ARRAY_SIZE(ethnl_wol_get_policy) - 1,
777 .cmd = ETHTOOL_MSG_WOL_SET,
778 .flags = GENL_UNS_ADMIN_PERM,
779 .doit = ethnl_set_wol,
780 .policy = ethnl_wol_set_policy,
781 .maxattr = ARRAY_SIZE(ethnl_wol_set_policy) - 1,
784 .cmd = ETHTOOL_MSG_FEATURES_GET,
785 .doit = ethnl_default_doit,
786 .start = ethnl_default_start,
787 .dumpit = ethnl_default_dumpit,
788 .done = ethnl_default_done,
789 .policy = ethnl_features_get_policy,
790 .maxattr = ARRAY_SIZE(ethnl_features_get_policy) - 1,
793 .cmd = ETHTOOL_MSG_FEATURES_SET,
794 .flags = GENL_UNS_ADMIN_PERM,
795 .doit = ethnl_set_features,
796 .policy = ethnl_features_set_policy,
797 .maxattr = ARRAY_SIZE(ethnl_features_set_policy) - 1,
800 .cmd = ETHTOOL_MSG_PRIVFLAGS_GET,
801 .doit = ethnl_default_doit,
802 .start = ethnl_default_start,
803 .dumpit = ethnl_default_dumpit,
804 .done = ethnl_default_done,
805 .policy = ethnl_privflags_get_policy,
806 .maxattr = ARRAY_SIZE(ethnl_privflags_get_policy) - 1,
809 .cmd = ETHTOOL_MSG_PRIVFLAGS_SET,
810 .flags = GENL_UNS_ADMIN_PERM,
811 .doit = ethnl_set_privflags,
812 .policy = ethnl_privflags_set_policy,
813 .maxattr = ARRAY_SIZE(ethnl_privflags_set_policy) - 1,
816 .cmd = ETHTOOL_MSG_RINGS_GET,
817 .doit = ethnl_default_doit,
818 .start = ethnl_default_start,
819 .dumpit = ethnl_default_dumpit,
820 .done = ethnl_default_done,
821 .policy = ethnl_rings_get_policy,
822 .maxattr = ARRAY_SIZE(ethnl_rings_get_policy) - 1,
825 .cmd = ETHTOOL_MSG_RINGS_SET,
826 .flags = GENL_UNS_ADMIN_PERM,
827 .doit = ethnl_set_rings,
828 .policy = ethnl_rings_set_policy,
829 .maxattr = ARRAY_SIZE(ethnl_rings_set_policy) - 1,
832 .cmd = ETHTOOL_MSG_CHANNELS_GET,
833 .doit = ethnl_default_doit,
834 .start = ethnl_default_start,
835 .dumpit = ethnl_default_dumpit,
836 .done = ethnl_default_done,
837 .policy = ethnl_channels_get_policy,
838 .maxattr = ARRAY_SIZE(ethnl_channels_get_policy) - 1,
841 .cmd = ETHTOOL_MSG_CHANNELS_SET,
842 .flags = GENL_UNS_ADMIN_PERM,
843 .doit = ethnl_set_channels,
844 .policy = ethnl_channels_set_policy,
845 .maxattr = ARRAY_SIZE(ethnl_channels_set_policy) - 1,
848 .cmd = ETHTOOL_MSG_COALESCE_GET,
849 .doit = ethnl_default_doit,
850 .start = ethnl_default_start,
851 .dumpit = ethnl_default_dumpit,
852 .done = ethnl_default_done,
853 .policy = ethnl_coalesce_get_policy,
854 .maxattr = ARRAY_SIZE(ethnl_coalesce_get_policy) - 1,
857 .cmd = ETHTOOL_MSG_COALESCE_SET,
858 .flags = GENL_UNS_ADMIN_PERM,
859 .doit = ethnl_set_coalesce,
860 .policy = ethnl_coalesce_set_policy,
861 .maxattr = ARRAY_SIZE(ethnl_coalesce_set_policy) - 1,
864 .cmd = ETHTOOL_MSG_PAUSE_GET,
865 .doit = ethnl_default_doit,
866 .start = ethnl_default_start,
867 .dumpit = ethnl_default_dumpit,
868 .done = ethnl_default_done,
869 .policy = ethnl_pause_get_policy,
870 .maxattr = ARRAY_SIZE(ethnl_pause_get_policy) - 1,
873 .cmd = ETHTOOL_MSG_PAUSE_SET,
874 .flags = GENL_UNS_ADMIN_PERM,
875 .doit = ethnl_set_pause,
876 .policy = ethnl_pause_set_policy,
877 .maxattr = ARRAY_SIZE(ethnl_pause_set_policy) - 1,
880 .cmd = ETHTOOL_MSG_EEE_GET,
881 .doit = ethnl_default_doit,
882 .start = ethnl_default_start,
883 .dumpit = ethnl_default_dumpit,
884 .done = ethnl_default_done,
885 .policy = ethnl_eee_get_policy,
886 .maxattr = ARRAY_SIZE(ethnl_eee_get_policy) - 1,
889 .cmd = ETHTOOL_MSG_EEE_SET,
890 .flags = GENL_UNS_ADMIN_PERM,
891 .doit = ethnl_set_eee,
892 .policy = ethnl_eee_set_policy,
893 .maxattr = ARRAY_SIZE(ethnl_eee_set_policy) - 1,
896 .cmd = ETHTOOL_MSG_TSINFO_GET,
897 .doit = ethnl_default_doit,
898 .start = ethnl_default_start,
899 .dumpit = ethnl_default_dumpit,
900 .done = ethnl_default_done,
901 .policy = ethnl_tsinfo_get_policy,
902 .maxattr = ARRAY_SIZE(ethnl_tsinfo_get_policy) - 1,
905 .cmd = ETHTOOL_MSG_CABLE_TEST_ACT,
906 .flags = GENL_UNS_ADMIN_PERM,
907 .doit = ethnl_act_cable_test,
908 .policy = ethnl_cable_test_act_policy,
909 .maxattr = ARRAY_SIZE(ethnl_cable_test_act_policy) - 1,
912 .cmd = ETHTOOL_MSG_CABLE_TEST_TDR_ACT,
913 .flags = GENL_UNS_ADMIN_PERM,
914 .doit = ethnl_act_cable_test_tdr,
915 .policy = ethnl_cable_test_tdr_act_policy,
916 .maxattr = ARRAY_SIZE(ethnl_cable_test_tdr_act_policy) - 1,
919 .cmd = ETHTOOL_MSG_TUNNEL_INFO_GET,
920 .doit = ethnl_tunnel_info_doit,
921 .start = ethnl_tunnel_info_start,
922 .dumpit = ethnl_tunnel_info_dumpit,
923 .policy = ethnl_tunnel_info_get_policy,
924 .maxattr = ARRAY_SIZE(ethnl_tunnel_info_get_policy) - 1,
927 .cmd = ETHTOOL_MSG_FEC_GET,
928 .doit = ethnl_default_doit,
929 .start = ethnl_default_start,
930 .dumpit = ethnl_default_dumpit,
931 .done = ethnl_default_done,
932 .policy = ethnl_fec_get_policy,
933 .maxattr = ARRAY_SIZE(ethnl_fec_get_policy) - 1,
936 .cmd = ETHTOOL_MSG_FEC_SET,
937 .flags = GENL_UNS_ADMIN_PERM,
938 .doit = ethnl_set_fec,
939 .policy = ethnl_fec_set_policy,
940 .maxattr = ARRAY_SIZE(ethnl_fec_set_policy) - 1,
943 .cmd = ETHTOOL_MSG_MODULE_EEPROM_GET,
944 .flags = GENL_UNS_ADMIN_PERM,
945 .doit = ethnl_default_doit,
946 .start = ethnl_default_start,
947 .dumpit = ethnl_default_dumpit,
948 .done = ethnl_default_done,
949 .policy = ethnl_module_eeprom_get_policy,
950 .maxattr = ARRAY_SIZE(ethnl_module_eeprom_get_policy) - 1,
953 .cmd = ETHTOOL_MSG_STATS_GET,
954 .doit = ethnl_default_doit,
955 .start = ethnl_default_start,
956 .dumpit = ethnl_default_dumpit,
957 .done = ethnl_default_done,
958 .policy = ethnl_stats_get_policy,
959 .maxattr = ARRAY_SIZE(ethnl_stats_get_policy) - 1,
963 static const struct genl_multicast_group ethtool_nl_mcgrps[] = {
964 [ETHNL_MCGRP_MONITOR] = { .name = ETHTOOL_MCGRP_MONITOR_NAME },
967 static struct genl_family ethtool_genl_family __ro_after_init = {
968 .name = ETHTOOL_GENL_NAME,
969 .version = ETHTOOL_GENL_VERSION,
971 .parallel_ops = true,
972 .ops = ethtool_genl_ops,
973 .n_ops = ARRAY_SIZE(ethtool_genl_ops),
974 .mcgrps = ethtool_nl_mcgrps,
975 .n_mcgrps = ARRAY_SIZE(ethtool_nl_mcgrps),
980 static int __init ethnl_init(void)
984 ret = genl_register_family(ðtool_genl_family);
985 if (WARN(ret < 0, "ethtool: genetlink family registration failed"))
989 ret = register_netdevice_notifier(ðnl_netdev_notifier);
990 WARN(ret < 0, "ethtool: net device notifier registration failed");
994 subsys_initcall(ethnl_init);