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_TSINFO_GET] = ðnl_tsinfo_request_ops,
250 static struct ethnl_dump_ctx *ethnl_dump_context(struct netlink_callback *cb)
252 return (struct ethnl_dump_ctx *)cb->ctx;
256 * ethnl_default_parse() - Parse request message
257 * @req_info: pointer to structure to put data into
258 * @tb: parsed attributes
259 * @net: request netns
260 * @request_ops: struct request_ops for request type
261 * @extack: netlink extack for error reporting
262 * @require_dev: fail if no device identified in header
264 * Parse universal request header and call request specific ->parse_request()
265 * callback (if defined) to parse the rest of the message.
267 * Return: 0 on success or negative error code
269 static int ethnl_default_parse(struct ethnl_req_info *req_info,
270 struct nlattr **tb, struct net *net,
271 const struct ethnl_request_ops *request_ops,
272 struct netlink_ext_ack *extack, bool require_dev)
276 ret = ethnl_parse_header_dev_get(req_info, tb[request_ops->hdr_attr],
277 net, extack, require_dev);
281 if (request_ops->parse_request) {
282 ret = request_ops->parse_request(req_info, tb, extack);
291 * ethnl_init_reply_data() - Initialize reply data for GET request
292 * @reply_data: pointer to embedded struct ethnl_reply_data
293 * @ops: instance of struct ethnl_request_ops describing the layout
294 * @dev: network device to initialize the reply for
296 * Fills the reply data part with zeros and sets the dev member. Must be called
297 * before calling the ->fill_reply() callback (for each iteration when handling
300 static void ethnl_init_reply_data(struct ethnl_reply_data *reply_data,
301 const struct ethnl_request_ops *ops,
302 struct net_device *dev)
304 memset(reply_data, 0, ops->reply_data_size);
305 reply_data->dev = dev;
308 /* default ->doit() handler for GET type requests */
309 static int ethnl_default_doit(struct sk_buff *skb, struct genl_info *info)
311 struct ethnl_reply_data *reply_data = NULL;
312 struct ethnl_req_info *req_info = NULL;
313 const u8 cmd = info->genlhdr->cmd;
314 const struct ethnl_request_ops *ops;
315 struct sk_buff *rskb;
320 ops = ethnl_default_requests[cmd];
321 if (WARN_ONCE(!ops, "cmd %u has no ethnl_request_ops\n", cmd))
323 req_info = kzalloc(ops->req_info_size, GFP_KERNEL);
326 reply_data = kmalloc(ops->reply_data_size, GFP_KERNEL);
332 ret = ethnl_default_parse(req_info, info->attrs, genl_info_net(info),
333 ops, info->extack, !ops->allow_nodev_do);
336 ethnl_init_reply_data(reply_data, ops, req_info->dev);
339 ret = ops->prepare_data(req_info, reply_data, info);
343 ret = ops->reply_size(req_info, reply_data);
346 reply_len = ret + ethnl_reply_header_size();
348 rskb = ethnl_reply_init(reply_len, req_info->dev, ops->reply_cmd,
349 ops->hdr_attr, info, &reply_payload);
352 ret = ops->fill_reply(rskb, req_info, reply_data);
355 if (ops->cleanup_data)
356 ops->cleanup_data(reply_data);
358 genlmsg_end(rskb, reply_payload);
360 dev_put(req_info->dev);
363 return genlmsg_reply(rskb, info);
366 WARN_ONCE(ret == -EMSGSIZE, "calculated message payload length (%d) not sufficient\n", reply_len);
369 if (ops->cleanup_data)
370 ops->cleanup_data(reply_data);
373 dev_put(req_info->dev);
379 static int ethnl_default_dump_one(struct sk_buff *skb, struct net_device *dev,
380 const struct ethnl_dump_ctx *ctx,
381 struct netlink_callback *cb)
386 ehdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
387 ðtool_genl_family, NLM_F_MULTI,
388 ctx->ops->reply_cmd);
392 ethnl_init_reply_data(ctx->reply_data, ctx->ops, dev);
394 ret = ctx->ops->prepare_data(ctx->req_info, ctx->reply_data, NULL);
398 ret = ethnl_fill_reply_header(skb, dev, ctx->ops->hdr_attr);
401 ret = ctx->ops->fill_reply(skb, ctx->req_info, ctx->reply_data);
404 if (ctx->ops->cleanup_data)
405 ctx->ops->cleanup_data(ctx->reply_data);
406 ctx->reply_data->dev = NULL;
408 genlmsg_cancel(skb, ehdr);
410 genlmsg_end(skb, ehdr);
414 /* Default ->dumpit() handler for GET requests. Device iteration copied from
415 * rtnl_dump_ifinfo(); we have to be more careful about device hashtable
416 * persistence as we cannot guarantee to hold RTNL lock through the whole
417 * function as rtnetnlink does.
419 static int ethnl_default_dumpit(struct sk_buff *skb,
420 struct netlink_callback *cb)
422 struct ethnl_dump_ctx *ctx = ethnl_dump_context(cb);
423 struct net *net = sock_net(skb->sk);
424 int s_idx = ctx->pos_idx;
429 for (h = ctx->pos_hash; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
430 struct hlist_head *head;
431 struct net_device *dev;
434 head = &net->dev_index_head[h];
437 seq = net->dev_base_seq;
440 hlist_for_each_entry(dev, head, index_hlist) {
446 ret = ethnl_default_dump_one(skb, dev, ctx, cb);
449 if (ret == -EOPNOTSUPP)
451 if (likely(skb->len))
457 if (net->dev_base_seq != seq) {
471 nl_dump_check_consistent(cb, nlmsg_hdr(skb));
476 /* generic ->start() handler for GET requests */
477 static int ethnl_default_start(struct netlink_callback *cb)
479 const struct genl_dumpit_info *info = genl_dumpit_info(cb);
480 struct ethnl_dump_ctx *ctx = ethnl_dump_context(cb);
481 struct ethnl_reply_data *reply_data;
482 const struct ethnl_request_ops *ops;
483 struct ethnl_req_info *req_info;
484 struct genlmsghdr *ghdr;
487 BUILD_BUG_ON(sizeof(*ctx) > sizeof(cb->ctx));
489 ghdr = nlmsg_data(cb->nlh);
490 ops = ethnl_default_requests[ghdr->cmd];
491 if (WARN_ONCE(!ops, "cmd %u has no ethnl_request_ops\n", ghdr->cmd))
493 req_info = kzalloc(ops->req_info_size, GFP_KERNEL);
496 reply_data = kmalloc(ops->reply_data_size, GFP_KERNEL);
502 ret = ethnl_default_parse(req_info, info->attrs, sock_net(cb->skb->sk),
503 ops, cb->extack, false);
505 /* We ignore device specification in dump requests but as the
506 * same parser as for non-dump (doit) requests is used, it
507 * would take reference to the device if it finds one
509 dev_put(req_info->dev);
510 req_info->dev = NULL;
513 goto free_reply_data;
516 ctx->req_info = req_info;
517 ctx->reply_data = reply_data;
531 /* default ->done() handler for GET requests */
532 static int ethnl_default_done(struct netlink_callback *cb)
534 struct ethnl_dump_ctx *ctx = ethnl_dump_context(cb);
536 kfree(ctx->reply_data);
537 kfree(ctx->req_info);
542 static const struct ethnl_request_ops *
543 ethnl_default_notify_ops[ETHTOOL_MSG_KERNEL_MAX + 1] = {
544 [ETHTOOL_MSG_LINKINFO_NTF] = ðnl_linkinfo_request_ops,
545 [ETHTOOL_MSG_LINKMODES_NTF] = ðnl_linkmodes_request_ops,
546 [ETHTOOL_MSG_DEBUG_NTF] = ðnl_debug_request_ops,
547 [ETHTOOL_MSG_WOL_NTF] = ðnl_wol_request_ops,
548 [ETHTOOL_MSG_FEATURES_NTF] = ðnl_features_request_ops,
549 [ETHTOOL_MSG_PRIVFLAGS_NTF] = ðnl_privflags_request_ops,
550 [ETHTOOL_MSG_RINGS_NTF] = ðnl_rings_request_ops,
551 [ETHTOOL_MSG_CHANNELS_NTF] = ðnl_channels_request_ops,
552 [ETHTOOL_MSG_COALESCE_NTF] = ðnl_coalesce_request_ops,
553 [ETHTOOL_MSG_PAUSE_NTF] = ðnl_pause_request_ops,
554 [ETHTOOL_MSG_EEE_NTF] = ðnl_eee_request_ops,
557 /* default notification handler */
558 static void ethnl_default_notify(struct net_device *dev, unsigned int cmd,
561 struct ethnl_reply_data *reply_data;
562 const struct ethnl_request_ops *ops;
563 struct ethnl_req_info *req_info;
569 if (WARN_ONCE(cmd > ETHTOOL_MSG_KERNEL_MAX ||
570 !ethnl_default_notify_ops[cmd],
571 "unexpected notification type %u\n", cmd))
573 ops = ethnl_default_notify_ops[cmd];
574 req_info = kzalloc(ops->req_info_size, GFP_KERNEL);
577 reply_data = kmalloc(ops->reply_data_size, GFP_KERNEL);
584 req_info->flags |= ETHTOOL_FLAG_COMPACT_BITSETS;
586 ethnl_init_reply_data(reply_data, ops, dev);
587 ret = ops->prepare_data(req_info, reply_data, NULL);
590 ret = ops->reply_size(req_info, reply_data);
593 reply_len = ret + ethnl_reply_header_size();
595 skb = genlmsg_new(reply_len, GFP_KERNEL);
598 reply_payload = ethnl_bcastmsg_put(skb, cmd);
601 ret = ethnl_fill_reply_header(skb, dev, ops->hdr_attr);
604 ret = ops->fill_reply(skb, req_info, reply_data);
607 if (ops->cleanup_data)
608 ops->cleanup_data(reply_data);
610 genlmsg_end(skb, reply_payload);
613 ethnl_multicast(skb, dev);
617 WARN_ONCE(ret == -EMSGSIZE,
618 "calculated message payload length (%d) not sufficient\n",
623 if (ops->cleanup_data)
624 ops->cleanup_data(reply_data);
632 typedef void (*ethnl_notify_handler_t)(struct net_device *dev, unsigned int cmd,
635 static const ethnl_notify_handler_t ethnl_notify_handlers[] = {
636 [ETHTOOL_MSG_LINKINFO_NTF] = ethnl_default_notify,
637 [ETHTOOL_MSG_LINKMODES_NTF] = ethnl_default_notify,
638 [ETHTOOL_MSG_DEBUG_NTF] = ethnl_default_notify,
639 [ETHTOOL_MSG_WOL_NTF] = ethnl_default_notify,
640 [ETHTOOL_MSG_FEATURES_NTF] = ethnl_default_notify,
641 [ETHTOOL_MSG_PRIVFLAGS_NTF] = ethnl_default_notify,
642 [ETHTOOL_MSG_RINGS_NTF] = ethnl_default_notify,
643 [ETHTOOL_MSG_CHANNELS_NTF] = ethnl_default_notify,
644 [ETHTOOL_MSG_COALESCE_NTF] = ethnl_default_notify,
645 [ETHTOOL_MSG_PAUSE_NTF] = ethnl_default_notify,
646 [ETHTOOL_MSG_EEE_NTF] = ethnl_default_notify,
649 void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *data)
651 if (unlikely(!ethnl_ok))
655 if (likely(cmd < ARRAY_SIZE(ethnl_notify_handlers) &&
656 ethnl_notify_handlers[cmd]))
657 ethnl_notify_handlers[cmd](dev, cmd, data);
659 WARN_ONCE(1, "notification %u not implemented (dev=%s)\n",
660 cmd, netdev_name(dev));
662 EXPORT_SYMBOL(ethtool_notify);
664 static void ethnl_notify_features(struct netdev_notifier_info *info)
666 struct net_device *dev = netdev_notifier_info_to_dev(info);
668 ethtool_notify(dev, ETHTOOL_MSG_FEATURES_NTF, NULL);
671 static int ethnl_netdev_event(struct notifier_block *this, unsigned long event,
675 case NETDEV_FEAT_CHANGE:
676 ethnl_notify_features(ptr);
683 static struct notifier_block ethnl_netdev_notifier = {
684 .notifier_call = ethnl_netdev_event,
687 /* genetlink setup */
689 static const struct genl_ops ethtool_genl_ops[] = {
691 .cmd = ETHTOOL_MSG_STRSET_GET,
692 .doit = ethnl_default_doit,
693 .start = ethnl_default_start,
694 .dumpit = ethnl_default_dumpit,
695 .done = ethnl_default_done,
696 .policy = ethnl_strset_get_policy,
697 .maxattr = ARRAY_SIZE(ethnl_strset_get_policy) - 1,
700 .cmd = ETHTOOL_MSG_LINKINFO_GET,
701 .doit = ethnl_default_doit,
702 .start = ethnl_default_start,
703 .dumpit = ethnl_default_dumpit,
704 .done = ethnl_default_done,
705 .policy = ethnl_linkinfo_get_policy,
706 .maxattr = ARRAY_SIZE(ethnl_linkinfo_get_policy) - 1,
709 .cmd = ETHTOOL_MSG_LINKINFO_SET,
710 .flags = GENL_UNS_ADMIN_PERM,
711 .doit = ethnl_set_linkinfo,
712 .policy = ethnl_linkinfo_set_policy,
713 .maxattr = ARRAY_SIZE(ethnl_linkinfo_set_policy) - 1,
716 .cmd = ETHTOOL_MSG_LINKMODES_GET,
717 .doit = ethnl_default_doit,
718 .start = ethnl_default_start,
719 .dumpit = ethnl_default_dumpit,
720 .done = ethnl_default_done,
721 .policy = ethnl_linkmodes_get_policy,
722 .maxattr = ARRAY_SIZE(ethnl_linkmodes_get_policy) - 1,
725 .cmd = ETHTOOL_MSG_LINKMODES_SET,
726 .flags = GENL_UNS_ADMIN_PERM,
727 .doit = ethnl_set_linkmodes,
728 .policy = ethnl_linkmodes_set_policy,
729 .maxattr = ARRAY_SIZE(ethnl_linkmodes_set_policy) - 1,
732 .cmd = ETHTOOL_MSG_LINKSTATE_GET,
733 .doit = ethnl_default_doit,
734 .start = ethnl_default_start,
735 .dumpit = ethnl_default_dumpit,
736 .done = ethnl_default_done,
737 .policy = ethnl_linkstate_get_policy,
738 .maxattr = ARRAY_SIZE(ethnl_linkstate_get_policy) - 1,
741 .cmd = ETHTOOL_MSG_DEBUG_GET,
742 .doit = ethnl_default_doit,
743 .start = ethnl_default_start,
744 .dumpit = ethnl_default_dumpit,
745 .done = ethnl_default_done,
746 .policy = ethnl_debug_get_policy,
747 .maxattr = ARRAY_SIZE(ethnl_debug_get_policy) - 1,
750 .cmd = ETHTOOL_MSG_DEBUG_SET,
751 .flags = GENL_UNS_ADMIN_PERM,
752 .doit = ethnl_set_debug,
753 .policy = ethnl_debug_set_policy,
754 .maxattr = ARRAY_SIZE(ethnl_debug_set_policy) - 1,
757 .cmd = ETHTOOL_MSG_WOL_GET,
758 .flags = GENL_UNS_ADMIN_PERM,
759 .doit = ethnl_default_doit,
760 .start = ethnl_default_start,
761 .dumpit = ethnl_default_dumpit,
762 .done = ethnl_default_done,
763 .policy = ethnl_wol_get_policy,
764 .maxattr = ARRAY_SIZE(ethnl_wol_get_policy) - 1,
767 .cmd = ETHTOOL_MSG_WOL_SET,
768 .flags = GENL_UNS_ADMIN_PERM,
769 .doit = ethnl_set_wol,
770 .policy = ethnl_wol_set_policy,
771 .maxattr = ARRAY_SIZE(ethnl_wol_set_policy) - 1,
774 .cmd = ETHTOOL_MSG_FEATURES_GET,
775 .doit = ethnl_default_doit,
776 .start = ethnl_default_start,
777 .dumpit = ethnl_default_dumpit,
778 .done = ethnl_default_done,
779 .policy = ethnl_features_get_policy,
780 .maxattr = ARRAY_SIZE(ethnl_features_get_policy) - 1,
783 .cmd = ETHTOOL_MSG_FEATURES_SET,
784 .flags = GENL_UNS_ADMIN_PERM,
785 .doit = ethnl_set_features,
786 .policy = ethnl_features_set_policy,
787 .maxattr = ARRAY_SIZE(ethnl_features_set_policy) - 1,
790 .cmd = ETHTOOL_MSG_PRIVFLAGS_GET,
791 .doit = ethnl_default_doit,
792 .start = ethnl_default_start,
793 .dumpit = ethnl_default_dumpit,
794 .done = ethnl_default_done,
795 .policy = ethnl_privflags_get_policy,
796 .maxattr = ARRAY_SIZE(ethnl_privflags_get_policy) - 1,
799 .cmd = ETHTOOL_MSG_PRIVFLAGS_SET,
800 .flags = GENL_UNS_ADMIN_PERM,
801 .doit = ethnl_set_privflags,
802 .policy = ethnl_privflags_set_policy,
803 .maxattr = ARRAY_SIZE(ethnl_privflags_set_policy) - 1,
806 .cmd = ETHTOOL_MSG_RINGS_GET,
807 .doit = ethnl_default_doit,
808 .start = ethnl_default_start,
809 .dumpit = ethnl_default_dumpit,
810 .done = ethnl_default_done,
811 .policy = ethnl_rings_get_policy,
812 .maxattr = ARRAY_SIZE(ethnl_rings_get_policy) - 1,
815 .cmd = ETHTOOL_MSG_RINGS_SET,
816 .flags = GENL_UNS_ADMIN_PERM,
817 .doit = ethnl_set_rings,
818 .policy = ethnl_rings_set_policy,
819 .maxattr = ARRAY_SIZE(ethnl_rings_set_policy) - 1,
822 .cmd = ETHTOOL_MSG_CHANNELS_GET,
823 .doit = ethnl_default_doit,
824 .start = ethnl_default_start,
825 .dumpit = ethnl_default_dumpit,
826 .done = ethnl_default_done,
827 .policy = ethnl_channels_get_policy,
828 .maxattr = ARRAY_SIZE(ethnl_channels_get_policy) - 1,
831 .cmd = ETHTOOL_MSG_CHANNELS_SET,
832 .flags = GENL_UNS_ADMIN_PERM,
833 .doit = ethnl_set_channels,
834 .policy = ethnl_channels_set_policy,
835 .maxattr = ARRAY_SIZE(ethnl_channels_set_policy) - 1,
838 .cmd = ETHTOOL_MSG_COALESCE_GET,
839 .doit = ethnl_default_doit,
840 .start = ethnl_default_start,
841 .dumpit = ethnl_default_dumpit,
842 .done = ethnl_default_done,
843 .policy = ethnl_coalesce_get_policy,
844 .maxattr = ARRAY_SIZE(ethnl_coalesce_get_policy) - 1,
847 .cmd = ETHTOOL_MSG_COALESCE_SET,
848 .flags = GENL_UNS_ADMIN_PERM,
849 .doit = ethnl_set_coalesce,
850 .policy = ethnl_coalesce_set_policy,
851 .maxattr = ARRAY_SIZE(ethnl_coalesce_set_policy) - 1,
854 .cmd = ETHTOOL_MSG_PAUSE_GET,
855 .doit = ethnl_default_doit,
856 .start = ethnl_default_start,
857 .dumpit = ethnl_default_dumpit,
858 .done = ethnl_default_done,
859 .policy = ethnl_pause_get_policy,
860 .maxattr = ARRAY_SIZE(ethnl_pause_get_policy) - 1,
863 .cmd = ETHTOOL_MSG_PAUSE_SET,
864 .flags = GENL_UNS_ADMIN_PERM,
865 .doit = ethnl_set_pause,
866 .policy = ethnl_pause_set_policy,
867 .maxattr = ARRAY_SIZE(ethnl_pause_set_policy) - 1,
870 .cmd = ETHTOOL_MSG_EEE_GET,
871 .doit = ethnl_default_doit,
872 .start = ethnl_default_start,
873 .dumpit = ethnl_default_dumpit,
874 .done = ethnl_default_done,
875 .policy = ethnl_eee_get_policy,
876 .maxattr = ARRAY_SIZE(ethnl_eee_get_policy) - 1,
879 .cmd = ETHTOOL_MSG_EEE_SET,
880 .flags = GENL_UNS_ADMIN_PERM,
881 .doit = ethnl_set_eee,
882 .policy = ethnl_eee_set_policy,
883 .maxattr = ARRAY_SIZE(ethnl_eee_set_policy) - 1,
886 .cmd = ETHTOOL_MSG_TSINFO_GET,
887 .doit = ethnl_default_doit,
888 .start = ethnl_default_start,
889 .dumpit = ethnl_default_dumpit,
890 .done = ethnl_default_done,
891 .policy = ethnl_tsinfo_get_policy,
892 .maxattr = ARRAY_SIZE(ethnl_tsinfo_get_policy) - 1,
895 .cmd = ETHTOOL_MSG_CABLE_TEST_ACT,
896 .flags = GENL_UNS_ADMIN_PERM,
897 .doit = ethnl_act_cable_test,
898 .policy = ethnl_cable_test_act_policy,
899 .maxattr = ARRAY_SIZE(ethnl_cable_test_act_policy) - 1,
902 .cmd = ETHTOOL_MSG_CABLE_TEST_TDR_ACT,
903 .flags = GENL_UNS_ADMIN_PERM,
904 .doit = ethnl_act_cable_test_tdr,
905 .policy = ethnl_cable_test_tdr_act_policy,
906 .maxattr = ARRAY_SIZE(ethnl_cable_test_tdr_act_policy) - 1,
909 .cmd = ETHTOOL_MSG_TUNNEL_INFO_GET,
910 .doit = ethnl_tunnel_info_doit,
911 .start = ethnl_tunnel_info_start,
912 .dumpit = ethnl_tunnel_info_dumpit,
913 .policy = ethnl_tunnel_info_get_policy,
914 .maxattr = ARRAY_SIZE(ethnl_tunnel_info_get_policy) - 1,
918 static const struct genl_multicast_group ethtool_nl_mcgrps[] = {
919 [ETHNL_MCGRP_MONITOR] = { .name = ETHTOOL_MCGRP_MONITOR_NAME },
922 static struct genl_family ethtool_genl_family __ro_after_init = {
923 .name = ETHTOOL_GENL_NAME,
924 .version = ETHTOOL_GENL_VERSION,
926 .parallel_ops = true,
927 .ops = ethtool_genl_ops,
928 .n_ops = ARRAY_SIZE(ethtool_genl_ops),
929 .mcgrps = ethtool_nl_mcgrps,
930 .n_mcgrps = ARRAY_SIZE(ethtool_nl_mcgrps),
935 static int __init ethnl_init(void)
939 ret = genl_register_family(ðtool_genl_family);
940 if (WARN(ret < 0, "ethtool: genetlink family registration failed"))
944 ret = register_netdevice_notifier(ðnl_netdev_notifier);
945 WARN(ret < 0, "ethtool: net device notifier registration failed");
949 subsys_initcall(ethnl_init);