mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
170 lines
4.3 KiB
170 lines
4.3 KiB
// 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; |
|
} |
|
|
|
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, |
|
}; |
|
|
|
/* 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 }, |
|
}; |
|
|
|
int ethnl_set_wol(struct sk_buff *skb, struct genl_info *info) |
|
{ |
|
struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL }; |
|
struct ethnl_req_info req_info = {}; |
|
struct nlattr **tb = info->attrs; |
|
struct net_device *dev; |
|
bool mod = false; |
|
int ret; |
|
|
|
ret = ethnl_parse_header_dev_get(&req_info, tb[ETHTOOL_A_WOL_HEADER], |
|
genl_info_net(info), info->extack, |
|
true); |
|
if (ret < 0) |
|
return ret; |
|
dev = req_info.dev; |
|
ret = -EOPNOTSUPP; |
|
if (!dev->ethtool_ops->get_wol || !dev->ethtool_ops->set_wol) |
|
goto out_dev; |
|
|
|
rtnl_lock(); |
|
ret = ethnl_ops_begin(dev); |
|
if (ret < 0) |
|
goto out_rtnl; |
|
|
|
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) |
|
goto out_ops; |
|
if (wol.wolopts & ~wol.supported) { |
|
NL_SET_ERR_MSG_ATTR(info->extack, tb[ETHTOOL_A_WOL_MODES], |
|
"cannot enable unsupported WoL mode"); |
|
ret = -EINVAL; |
|
goto out_ops; |
|
} |
|
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"); |
|
ret = -EINVAL; |
|
goto out_ops; |
|
} |
|
ethnl_update_binary(wol.sopass, sizeof(wol.sopass), |
|
tb[ETHTOOL_A_WOL_SOPASS], &mod); |
|
} |
|
|
|
if (!mod) |
|
goto out_ops; |
|
ret = dev->ethtool_ops->set_wol(dev, &wol); |
|
if (ret) |
|
goto out_ops; |
|
dev->wol_enabled = !!wol.wolopts; |
|
ethtool_notify(dev, ETHTOOL_MSG_WOL_NTF, NULL); |
|
|
|
out_ops: |
|
ethnl_ops_complete(dev); |
|
out_rtnl: |
|
rtnl_unlock(); |
|
out_dev: |
|
dev_put(dev); |
|
return ret; |
|
}
|
|
|