rt2800pci: add back ifdown hang workaround that was accidentally dropped during a...

[openwrt.git] / package / wprobe / src / user / wprobe.h

diff --git a/package/wprobe/src/user/wprobe.h b/package/wprobe/src/user/wprobe.h
index e0c33fa..706facc 100644 (file)
--- a/package/wprobe/src/user/wprobe.h
+++ b/package/wprobe/src/user/wprobe.h
@@ -87,57 +87,127 @@ struct wprobe_link {
        unsigned char addr[6];
 };
 
-/**
- * wprobe_init: initialize internal data structures and connect to the wprobe netlink api
- */
-extern int wprobe_init(void);
+struct wprobe_filter_item {
+       char name[32];
+       uint64_t rx;
+       uint64_t tx;
+};
 
-/**
- * wprobe_free: free all internally allocated data structures
- */
-extern void wprobe_free(void);
+struct wprobe_iface_ops;
+struct wprobe_iface {
+       const struct wprobe_iface_ops *ops;
+
+       int sockfd;
+       const char *ifname;
+       unsigned int genl_family;
+       char addr[6];
+
+       struct list_head global_attr;
+       struct list_head link_attr;
+       struct list_head links;
+
+       /* config */
+       int interval;
+       int scale_min;
+       int scale_max;
+       int scale_m;
+       int scale_d;
+
+       /* filter */
+       void *filter;
+
+       /* filter_len:
+        *   set to -1 to drop the current filter
+        *   automatically reset to 0 after config apply
+        */
+       int filter_len;
+};
+
+typedef void (*wprobe_filter_cb)(void *arg, const char *group, struct wprobe_filter_item *items, int n_items);
+extern int wprobe_port;
 
 /**
  * wprobe_update_links: get a list of all link partners
- * @ifname: name of the wprobe interface
+ * @dev: wprobe device structure
  * @list: linked list for storing link descriptions
  *
  * when wprobe_update_links is called multiple times, the linked list 
  * is updated with new link partners, old entries are automatically expired
  */
-extern int wprobe_update_links(const char *ifname, struct list_head *list);
+extern int wprobe_update_links(struct wprobe_iface *dev);
+
+/**
+ * wprobe_dump_filters: dump all layer 2 filter counters
+ * @dev: wprobe device structure
+ * @cb: callback (called once per filter group)
+ * @arg: user argument for the callback
+ */
+extern int wprobe_dump_filters(struct wprobe_iface *dev, wprobe_filter_cb cb, void *arg);
 
 /**
  * wprobe_measure: start a measurement request for all global attributes
- * @ifname: name of the wprobe interface
+ * @dev: wprobe device structure
  *
  * not all attributes are automatically filled with data, since for some
  * it may be desirable to control the sampling interval from user space
  * you can use this function to do that.
  */
-extern void wprobe_measure(const char *ifname);
+extern int wprobe_measure(struct wprobe_iface *dev);
 
 /**
- * wprobe_dump_attributes: create a linked list of available attributes
+ * wprobe_get_dev: get a handle to a local wprobe device
  * @ifname: name of the wprobe interface
- * @link: false: get the list of global attributes; true: get the list of per-link attributes
- * @list: linked list to store the attributes in
- * @addr: buffer to store the interface's mac address in (optional)
  *
- * attributes must be freed by the caller
+ * queries the wprobe interface for all attributes
+ * must be freed with wprobe_free_dev
  */
-extern int wprobe_dump_attributes(const char *ifname, bool link, struct list_head *list, char *addr);
+extern struct wprobe_iface *wprobe_get_dev(const char *ifname);
+
+/**
+ * wprobe_get_auto: get a handle to a local or remote wprobe device
+ * @arg: pointer to the wprobe device, either <dev> (local) or <host>:<dev> (remote)
+ */
+extern struct wprobe_iface *wprobe_get_auto(const char *arg, char **err);
+
+/**
+ * wprobe_get_dev: free all device information
+ * @dev: wprobe device structure
+ */
+extern void wprobe_free_dev(struct wprobe_iface *dev);
+
+/**
+ * wprobe_apply_config: apply configuration data
+ * @dev: wprobe device structure
+ *
+ * uploads all configuration values from @dev that are not set to -1
+ */
+extern int wprobe_apply_config(struct wprobe_iface *dev);
 
 /**
  * wprobe_request_data: request new sampling values for the given list of attributes
- * @ifname: name of the wprobe interface
- * @attrs: attribute list
+ * @dev: wprobe device structure
  * @addr: (optional) mac address of the link partner
- * @scale: scale down values by a factor (scale < 0: reset statistics entirely)
  *
- * if addr is unset, attrs must point to the list of global attributes,
- * if addr is set, attrs must point to the list of per-link attributes
+ * if addr is unset, global values are stored in the global attributes list
+ * if addr is set, per-link values for the given address are stored in the link attributes list
+ */
+extern int wprobe_request_data(struct wprobe_iface *dev, const unsigned char *addr);
+
+/**
+ * wprobe_server_init: send a wprobe server init message to a server's client socket
+ * @socket: socket of the connection to the client
+ */
+extern int wprobe_server_init(int socket);
+
+/**
+ * wprobe_server_handle: read a request from the client socket, process it, send the response
+ * @socket: socket of the connection to the client
+ */
+extern int wprobe_server_handle(int socket);
+
+/**
+ * wprobe_server_done: release memory allocated for the server connection
  */
-extern int wprobe_request_data(const char *ifname, struct list_head *attrs, const unsigned char *addr, int scale);
+extern void wprobe_server_done(void);
 
 #endif