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cifs: Set witness notification handler for messages from userspace daemon

+ Set a handler for the witness notification messages received from the userspace daemon. + Handle the resource state change notification. When the resource becomes unavailable or available set the tcp status to CifsNeedReconnect for all channels.

Samuel Cabrero committed 5 years ago

Commit fed979a1 parent bf80e5d4 files · +116 −0Browse files

Showing the changes to include/uapi/linux (1 of 4 files). Show all

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include/uapi/linux/cifs/cifs_netlink.h+17−0
@@ -31,6 +31,9 @@ enum cifs_genl_attributes { · 30 unmodified lines
31 CIFS_GENL_ATTR_SWN_USER_NAME,31 CIFS_GENL_ATTR_SWN_USER_NAME,
32 CIFS_GENL_ATTR_SWN_PASSWORD,32 CIFS_GENL_ATTR_SWN_PASSWORD,
33 CIFS_GENL_ATTR_SWN_DOMAIN_NAME,33 CIFS_GENL_ATTR_SWN_DOMAIN_NAME,
34 CIFS_GENL_ATTR_SWN_NOTIFICATION_TYPE,
35 CIFS_GENL_ATTR_SWN_RESOURCE_STATE,
36 CIFS_GENL_ATTR_SWN_RESOURCE_NAME,
34 __CIFS_GENL_ATTR_MAX,37 __CIFS_GENL_ATTR_MAX,
35};38};
36#define CIFS_GENL_ATTR_MAX (__CIFS_GENL_ATTR_MAX - 1)39#define CIFS_GENL_ATTR_MAX (__CIFS_GENL_ATTR_MAX - 1)
@@ -39,8 +42,22 @@ enum cifs_genl_commands { · 2 unmodified lines
39 CIFS_GENL_CMD_UNSPEC,42 CIFS_GENL_CMD_UNSPEC,
40 CIFS_GENL_CMD_SWN_REGISTER,43 CIFS_GENL_CMD_SWN_REGISTER,
41 CIFS_GENL_CMD_SWN_UNREGISTER,44 CIFS_GENL_CMD_SWN_UNREGISTER,
45 CIFS_GENL_CMD_SWN_NOTIFY,
42 __CIFS_GENL_CMD_MAX46 __CIFS_GENL_CMD_MAX
43};47};
44#define CIFS_GENL_CMD_MAX (__CIFS_GENL_CMD_MAX - 1)48#define CIFS_GENL_CMD_MAX (__CIFS_GENL_CMD_MAX - 1)
45 49
50enum cifs_swn_notification_type {
51 CIFS_SWN_NOTIFICATION_RESOURCE_CHANGE = 0x01,
52 CIFS_SWN_NOTIFICATION_CLIENT_MOVE = 0x02,
53 CIFS_SWN_NOTIFICATION_SHARE_MOVE = 0x03,
54 CIFS_SWN_NOTIFICATION_IP_CHANGE = 0x04,
55};
56
57enum cifs_swn_resource_state {
58 CIFS_SWN_RESOURCE_STATE_UNKNOWN = 0x00,
59 CIFS_SWN_RESOURCE_STATE_AVAILABLE = 0x01,
60 CIFS_SWN_RESOURCE_STATE_UNAVAILABLE = 0xFF
61};
62
46#endif /* _UAPILINUX_CIFS_NETLINK_H */63#endif /* _UAPILINUX_CIFS_NETLINK_H */