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author | Michal Kubecek <mkubecek@suse.cz> | 2020-01-26 23:11:16 +0100 |
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committer | David S. Miller <davem@davemloft.net> | 2020-01-27 11:31:36 +0100 |
commit | 8d425b19b305a77cb1ba67b84e7c1ca547de032f (patch) | |
tree | 720022af29e8c07812541b4253609dabb7c77e10 /net/ethtool/wol.c | |
parent | 51ea22b04ea0c210f9ce87b8a600965dbe476bc2 (diff) | |
download | linux-stable-8d425b19b305a77cb1ba67b84e7c1ca547de032f.tar.gz linux-stable-8d425b19b305a77cb1ba67b84e7c1ca547de032f.tar.bz2 linux-stable-8d425b19b305a77cb1ba67b84e7c1ca547de032f.zip |
ethtool: set wake-on-lan settings with WOL_SET request
Implement WOL_SET netlink request to set wake-on-lan settings. This is
equivalent to ETHTOOL_SWOL ioctl request.
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ethtool/wol.c')
-rw-r--r-- | net/ethtool/wol.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/net/ethtool/wol.c b/net/ethtool/wol.c index 7c9a1ef622ce..a2724378fac4 100644 --- a/net/ethtool/wol.c +++ b/net/ethtool/wol.c @@ -97,3 +97,79 @@ const struct ethnl_request_ops ethnl_wol_request_ops = { .reply_size = wol_reply_size, .fill_reply = wol_fill_reply, }; + +/* WOL_SET */ + +static const struct nla_policy +wol_set_policy[ETHTOOL_A_WOL_MAX + 1] = { + [ETHTOOL_A_WOL_UNSPEC] = { .type = NLA_REJECT }, + [ETHTOOL_A_WOL_HEADER] = { .type = NLA_NESTED }, + [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 nlattr *tb[ETHTOOL_A_WOL_MAX + 1]; + struct ethnl_req_info req_info = {}; + struct net_device *dev; + bool mod = false; + int ret; + + ret = nlmsg_parse(info->nlhdr, GENL_HDRLEN, tb, ETHTOOL_A_WOL_MAX, + wol_set_policy, info->extack); + if (ret < 0) + return ret; + ret = ethnl_parse_header(&req_info, tb[ETHTOOL_A_WOL_HEADER], + genl_info_net(info), info->extack, true); + if (ret < 0) + return ret; + dev = req_info.dev; + if (!dev->ethtool_ops->get_wol || !dev->ethtool_ops->set_wol) + return -EOPNOTSUPP; + + 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; + +out_ops: + ethnl_ops_complete(dev); +out_rtnl: + rtnl_unlock(); + dev_put(dev); + return ret; +} |