// SPDX-License-Identifier: GPL-2.0-only #include "netlink.h"#include "common.h"#include "bitset.h" #define EEE_MODES_COUNT \	(sizeof_field(struct ethtool_eee, supported) * BITS_PER_BYTE) struct eee_req_info {	struct ethnl_req_info		base;}; struct eee_reply_data {	struct ethnl_reply_data		base;	struct ethtool_eee		eee;}; #define EEE_REPDATA(__reply_base) \	container_of(__reply_base, struct eee_reply_data, base) static const struct nla_policyeee_get_policy[ETHTOOL_A_EEE_MAX + 1] = {	[ETHTOOL_A_EEE_UNSPEC]		= { .type = NLA_REJECT },	[ETHTOOL_A_EEE_HEADER]		= { .type = NLA_NESTED },	[ETHTOOL_A_EEE_MODES_OURS]	= { .type = NLA_REJECT },	[ETHTOOL_A_EEE_MODES_PEER]	= { .type = NLA_REJECT },	[ETHTOOL_A_EEE_ACTIVE]		= { .type = NLA_REJECT },	[ETHTOOL_A_EEE_ENABLED]		= { .type = NLA_REJECT },	[ETHTOOL_A_EEE_TX_LPI_ENABLED]	= { .type = NLA_REJECT },	[ETHTOOL_A_EEE_TX_LPI_TIMER]	= { .type = NLA_REJECT },}; static int eee_prepare_data(const struct ethnl_req_info *req_base,			    struct ethnl_reply_data *reply_base,			    struct genl_info *info){	struct eee_reply_data *data = EEE_REPDATA(reply_base);	struct net_device *dev = reply_base->dev;	int ret; 	if (!dev->ethtool_ops->get_eee)		return -EOPNOTSUPP;	ret = ethnl_ops_begin(dev);	if (ret < 0)		return ret;	ret = dev->ethtool_ops->get_eee(dev, &data->eee);	ethnl_ops_complete(dev); 	return ret;} static int eee_reply_size(const struct ethnl_req_info *req_base,			  const struct ethnl_reply_data *reply_base){	bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;	const struct eee_reply_data *data = EEE_REPDATA(reply_base);	const struct ethtool_eee *eee = &data->eee;	int len = 0;	int ret; 	BUILD_BUG_ON(sizeof(eee->advertised) * BITS_PER_BYTE !=		     EEE_MODES_COUNT);	BUILD_BUG_ON(sizeof(eee->lp_advertised) * BITS_PER_BYTE !=		     EEE_MODES_COUNT); 	/* MODES_OURS */	ret = ethnl_bitset32_size(&eee->advertised, &eee->supported,				  EEE_MODES_COUNT, link_mode_names, compact);	if (ret < 0)		return ret;	len += ret;	/* MODES_PEERS */	ret = ethnl_bitset32_size(&eee->lp_advertised, NULL,				  EEE_MODES_COUNT, link_mode_names, compact);	if (ret < 0)		return ret;	len += ret; 	len += nla_total_size(sizeof(u8)) +	/* _EEE_ACTIVE */	       nla_total_size(sizeof(u8)) +	/* _EEE_ENABLED */	       nla_total_size(sizeof(u8)) +	/* _EEE_TX_LPI_ENABLED */	       nla_total_size(sizeof(u32));	/* _EEE_TX_LPI_TIMER */ 	return len;} static int eee_fill_reply(struct sk_buff *skb,			  const struct ethnl_req_info *req_base,			  const struct ethnl_reply_data *reply_base){	bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;	const struct eee_reply_data *data = EEE_REPDATA(reply_base);	const struct ethtool_eee *eee = &data->eee;	int ret; 	ret = ethnl_put_bitset32(skb, ETHTOOL_A_EEE_MODES_OURS,				 &eee->advertised, &eee->supported,				 EEE_MODES_COUNT, link_mode_names, compact);	if (ret < 0)		return ret;	ret = ethnl_put_bitset32(skb, ETHTOOL_A_EEE_MODES_PEER,				 &eee->lp_advertised, NULL, EEE_MODES_COUNT,				 link_mode_names, compact);	if (ret < 0)		return ret; 	if (nla_put_u8(skb, ETHTOOL_A_EEE_ACTIVE, !!eee->eee_active) ||	    nla_put_u8(skb, ETHTOOL_A_EEE_ENABLED, !!eee->eee_enabled) ||	    nla_put_u8(skb, ETHTOOL_A_EEE_TX_LPI_ENABLED,		       !!eee->tx_lpi_enabled) ||	    nla_put_u32(skb, ETHTOOL_A_EEE_TX_LPI_TIMER, eee->tx_lpi_timer))		return -EMSGSIZE; 	return 0;} const struct ethnl_request_ops ethnl_eee_request_ops = {	.request_cmd		= ETHTOOL_MSG_EEE_GET,	.reply_cmd		= ETHTOOL_MSG_EEE_GET_REPLY,	.hdr_attr		= ETHTOOL_A_EEE_HEADER,	.max_attr		= ETHTOOL_A_EEE_MAX,	.req_info_size		= sizeof(struct eee_req_info),	.reply_data_size	= sizeof(struct eee_reply_data),	.request_policy		= eee_get_policy, 	.prepare_data		= eee_prepare_data,	.reply_size		= eee_reply_size,	.fill_reply		= eee_fill_reply,}; /* EEE_SET */ static const struct nla_policyeee_set_policy[ETHTOOL_A_EEE_MAX + 1] = {	[ETHTOOL_A_EEE_UNSPEC]		= { .type = NLA_REJECT },	[ETHTOOL_A_EEE_HEADER]		= { .type = NLA_NESTED },	[ETHTOOL_A_EEE_MODES_OURS]	= { .type = NLA_NESTED },	[ETHTOOL_A_EEE_MODES_PEER]	= { .type = NLA_REJECT },	[ETHTOOL_A_EEE_ACTIVE]		= { .type = NLA_REJECT },	[ETHTOOL_A_EEE_ENABLED]		= { .type = NLA_U8 },	[ETHTOOL_A_EEE_TX_LPI_ENABLED]	= { .type = NLA_U8 },	[ETHTOOL_A_EEE_TX_LPI_TIMER]	= { .type = NLA_U32 },}; int ethnl_set_eee(struct sk_buff *skb, struct genl_info *info){	struct nlattr *tb[ETHTOOL_A_EEE_MAX + 1];	struct ethtool_eee eee = {};	struct ethnl_req_info req_info = {};	const struct ethtool_ops *ops;	struct net_device *dev;	bool mod = false;	int ret; 	ret = nlmsg_parse(info->nlhdr, GENL_HDRLEN, tb, ETHTOOL_A_EEE_MAX,			  eee_set_policy, info->extack);	if (ret < 0)		return ret;	ret = ethnl_parse_header_dev_get(&req_info,					 tb[ETHTOOL_A_EEE_HEADER],					 genl_info_net(info), info->extack,					 true);	if (ret < 0)		return ret;	dev = req_info.dev;	ops = dev->ethtool_ops;	ret = -EOPNOTSUPP;	if (!ops->get_eee || !ops->set_eee)		goto out_dev; 	rtnl_lock();	ret = ethnl_ops_begin(dev);	if (ret < 0)		goto out_rtnl;	ret = ops->get_eee(dev, &eee);	if (ret < 0)		goto out_ops; 	ret = ethnl_update_bitset32(&eee.advertised, EEE_MODES_COUNT,				    tb[ETHTOOL_A_EEE_MODES_OURS],				    link_mode_names, info->extack, &mod);	if (ret < 0)		goto out_ops;	ethnl_update_bool32(&eee.eee_enabled, tb[ETHTOOL_A_EEE_ENABLED], &mod);	ethnl_update_bool32(&eee.tx_lpi_enabled,			    tb[ETHTOOL_A_EEE_TX_LPI_ENABLED], &mod);	ethnl_update_bool32(&eee.tx_lpi_timer, tb[ETHTOOL_A_EEE_TX_LPI_TIMER],			    &mod);	ret = 0;	if (!mod)		goto out_ops; 	ret = dev->ethtool_ops->set_eee(dev, &eee);	if (ret < 0)		goto out_ops;	ethtool_notify(dev, ETHTOOL_MSG_EEE_NTF, NULL); out_ops:	ethnl_ops_complete(dev);out_rtnl:	rtnl_unlock();out_dev:	dev_put(dev);	return ret;}