158 lines
4.1 KiB
C
158 lines
4.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
|
|
#include "netlink.h"
|
|
#include "common.h"
|
|
#include "bitset.h"
|
|
|
|
struct wol_req_info {
|
|
struct ethnl_req_info base;
|
|
};
|
|
|
|
struct wol_reply_data {
|
|
struct ethnl_reply_data base;
|
|
struct ethtool_wolinfo wol;
|
|
bool show_sopass;
|
|
};
|
|
|
|
#define WOL_REPDATA(__reply_base) \
|
|
container_of(__reply_base, struct wol_reply_data, base)
|
|
|
|
const struct nla_policy ethnl_wol_get_policy[] = {
|
|
[ETHTOOL_A_WOL_HEADER] =
|
|
NLA_POLICY_NESTED(ethnl_header_policy),
|
|
};
|
|
|
|
static int wol_prepare_data(const struct ethnl_req_info *req_base,
|
|
struct ethnl_reply_data *reply_base,
|
|
struct genl_info *info)
|
|
{
|
|
struct wol_reply_data *data = WOL_REPDATA(reply_base);
|
|
struct net_device *dev = reply_base->dev;
|
|
int ret;
|
|
|
|
if (!dev->ethtool_ops->get_wol)
|
|
return -EOPNOTSUPP;
|
|
|
|
ret = ethnl_ops_begin(dev);
|
|
if (ret < 0)
|
|
return ret;
|
|
dev->ethtool_ops->get_wol(dev, &data->wol);
|
|
ethnl_ops_complete(dev);
|
|
/* do not include password in notifications */
|
|
data->show_sopass = info && (data->wol.supported & WAKE_MAGICSECURE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int wol_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 wol_reply_data *data = WOL_REPDATA(reply_base);
|
|
int len;
|
|
|
|
len = ethnl_bitset32_size(&data->wol.wolopts, &data->wol.supported,
|
|
WOL_MODE_COUNT, wol_mode_names, compact);
|
|
if (len < 0)
|
|
return len;
|
|
if (data->show_sopass)
|
|
len += nla_total_size(sizeof(data->wol.sopass));
|
|
|
|
return len;
|
|
}
|
|
|
|
static int wol_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 wol_reply_data *data = WOL_REPDATA(reply_base);
|
|
int ret;
|
|
|
|
ret = ethnl_put_bitset32(skb, ETHTOOL_A_WOL_MODES, &data->wol.wolopts,
|
|
&data->wol.supported, WOL_MODE_COUNT,
|
|
wol_mode_names, compact);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (data->show_sopass &&
|
|
nla_put(skb, ETHTOOL_A_WOL_SOPASS, sizeof(data->wol.sopass),
|
|
data->wol.sopass))
|
|
return -EMSGSIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* WOL_SET */
|
|
|
|
const struct nla_policy ethnl_wol_set_policy[] = {
|
|
[ETHTOOL_A_WOL_HEADER] =
|
|
NLA_POLICY_NESTED(ethnl_header_policy),
|
|
[ETHTOOL_A_WOL_MODES] = { .type = NLA_NESTED },
|
|
[ETHTOOL_A_WOL_SOPASS] = { .type = NLA_BINARY,
|
|
.len = SOPASS_MAX },
|
|
};
|
|
|
|
static int
|
|
ethnl_set_wol_validate(struct ethnl_req_info *req_info, struct genl_info *info)
|
|
{
|
|
const struct ethtool_ops *ops = req_info->dev->ethtool_ops;
|
|
|
|
return ops->get_wol && ops->set_wol ? 1 : -EOPNOTSUPP;
|
|
}
|
|
|
|
static int
|
|
ethnl_set_wol(struct ethnl_req_info *req_info, struct genl_info *info)
|
|
{
|
|
struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
|
|
struct net_device *dev = req_info->dev;
|
|
struct nlattr **tb = info->attrs;
|
|
bool mod = false;
|
|
int ret;
|
|
|
|
dev->ethtool_ops->get_wol(dev, &wol);
|
|
ret = ethnl_update_bitset32(&wol.wolopts, WOL_MODE_COUNT,
|
|
tb[ETHTOOL_A_WOL_MODES], wol_mode_names,
|
|
info->extack, &mod);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (wol.wolopts & ~wol.supported) {
|
|
NL_SET_ERR_MSG_ATTR(info->extack, tb[ETHTOOL_A_WOL_MODES],
|
|
"cannot enable unsupported WoL mode");
|
|
return -EINVAL;
|
|
}
|
|
if (tb[ETHTOOL_A_WOL_SOPASS]) {
|
|
if (!(wol.supported & WAKE_MAGICSECURE)) {
|
|
NL_SET_ERR_MSG_ATTR(info->extack,
|
|
tb[ETHTOOL_A_WOL_SOPASS],
|
|
"magicsecure not supported, cannot set password");
|
|
return -EINVAL;
|
|
}
|
|
ethnl_update_binary(wol.sopass, sizeof(wol.sopass),
|
|
tb[ETHTOOL_A_WOL_SOPASS], &mod);
|
|
}
|
|
|
|
if (!mod)
|
|
return 0;
|
|
ret = dev->ethtool_ops->set_wol(dev, &wol);
|
|
if (ret)
|
|
return ret;
|
|
dev->wol_enabled = !!wol.wolopts;
|
|
return 1;
|
|
}
|
|
|
|
const struct ethnl_request_ops ethnl_wol_request_ops = {
|
|
.request_cmd = ETHTOOL_MSG_WOL_GET,
|
|
.reply_cmd = ETHTOOL_MSG_WOL_GET_REPLY,
|
|
.hdr_attr = ETHTOOL_A_WOL_HEADER,
|
|
.req_info_size = sizeof(struct wol_req_info),
|
|
.reply_data_size = sizeof(struct wol_reply_data),
|
|
|
|
.prepare_data = wol_prepare_data,
|
|
.reply_size = wol_reply_size,
|
|
.fill_reply = wol_fill_reply,
|
|
|
|
.set_validate = ethnl_set_wol_validate,
|
|
.set = ethnl_set_wol,
|
|
.set_ntf_cmd = ETHTOOL_MSG_WOL_NTF,
|
|
};
|