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authorMichal Kubecek <mkubecek@suse.cz>2020-01-27 01:11:13 +0300
committerDavid S. Miller <davem@davemloft.net>2020-01-27 13:31:36 +0300
commit51ea22b04ea0c210f9ce87b8a600965dbe476bc2 (patch)
tree278820e9b0c6c519e55f852145bd33125f45f26d /Documentation/networking
parent0bda7af39d2ba6ef83bd18e26bcb027f1630004e (diff)
downloadlinux-51ea22b04ea0c210f9ce87b8a600965dbe476bc2.tar.xz
ethtool: provide WoL settings with WOL_GET request
Implement WOL_GET request to get wake-on-lan settings for a device, traditionally available via ETHTOOL_GWOL ioctl request. As part of the implementation, provide symbolic names for wake-on-line modes as ETH_SS_WOL_MODES string set. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
-rw-r--r--Documentation/networking/ethtool-netlink.rst30
1 files changed, 29 insertions, 1 deletions
diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst
index 2263f885d18f..5fd85e3ea96e 100644
--- a/Documentation/networking/ethtool-netlink.rst
+++ b/Documentation/networking/ethtool-netlink.rst
@@ -187,6 +187,7 @@ Userspace to kernel:
``ETHTOOL_MSG_LINKSTATE_GET`` get link state
``ETHTOOL_MSG_DEBUG_GET`` get debugging settings
``ETHTOOL_MSG_DEBUG_SET`` set debugging settings
+ ``ETHTOOL_MSG_WOL_GET`` get wake-on-lan settings
===================================== ================================
Kernel to userspace:
@@ -200,6 +201,7 @@ Kernel to userspace:
``ETHTOOL_MSG_LINKSTATE_GET_REPLY`` link state info
``ETHTOOL_MSG_DEBUG_GET_REPLY`` debugging settings
``ETHTOOL_MSG_DEBUG_NTF`` debugging settings notification
+ ``ETHTOOL_MSG_WOL_GET_REPLY`` wake-on-lan settings
===================================== ================================
``GET`` requests are sent by userspace applications to retrieve device
@@ -474,6 +476,32 @@ Request contents:
enabled debugging message types for the device.
+WOL_GET
+=======
+
+Query device wake-on-lan settings. Unlike most "GET" type requests,
+``ETHTOOL_MSG_WOL_GET`` requires (netns) ``CAP_NET_ADMIN`` privileges as it
+(potentially) provides SecureOn(tm) password which is confidential.
+
+Request contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_WOL_HEADER`` nested request header
+ ==================================== ====== ==========================
+
+Kernel response contents:
+
+ ==================================== ====== ==========================
+ ``ETHTOOL_A_WOL_HEADER`` nested reply header
+ ``ETHTOOL_A_WOL_MODES`` bitset mask of enabled WoL modes
+ ``ETHTOOL_A_WOL_SOPASS`` binary SecureOn(tm) password
+ ==================================== ====== ==========================
+
+In reply, ``ETHTOOL_A_WOL_MODES`` mask consists of modes supported by the
+device, value of modes which are enabled. ``ETHTOOL_A_WOL_SOPASS`` is only
+included in reply if ``WAKE_MAGICSECURE`` mode is supported.
+
+
Request translation
===================
@@ -490,7 +518,7 @@ have their netlink replacement yet.
``ETHTOOL_MSG_LINKMODES_SET``
``ETHTOOL_GDRVINFO`` n/a
``ETHTOOL_GREGS`` n/a
- ``ETHTOOL_GWOL`` n/a
+ ``ETHTOOL_GWOL`` ``ETHTOOL_MSG_WOL_GET``
``ETHTOOL_SWOL`` n/a
``ETHTOOL_GMSGLVL`` ``ETHTOOL_MSG_DEBUG_GET``
``ETHTOOL_SMSGLVL`` ``ETHTOOL_MSG_DEBUG_SET``