Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/inputs/wireless/README.md

@@ -0,0 +1,51 @@
+# Wireless Input Plugin
+
+The wireless plugin gathers metrics about wireless link quality by reading the
+`/proc/net/wireless` file. This plugin currently supports linux only.
+
+## Global configuration options <!-- @/docs/includes/plugin_config.md -->
+
+In addition to the plugin-specific configuration settings, plugins support
+additional global and plugin configuration settings. These settings are used to
+modify metrics, tags, and field or create aliases and configure ordering, etc.
+See the [CONFIGURATION.md][CONFIGURATION.md] for more details.
+
+[CONFIGURATION.md]: ../../../docs/CONFIGURATION.md#plugins
+
+## Configuration
+
+```toml @sample.conf
+# Monitor wifi signal strength and quality
+# This plugin ONLY supports Linux
+[[inputs.wireless]]
+  ## Sets 'proc' directory path
+  ## If not specified, then default is /proc
+  # host_proc = "/proc"
+```
+
+## Metrics
+
+- metric
+  - tags:
+    - interface (wireless interface)
+  - fields:
+    - status (int64, gauge) - Its current state. This is a device dependent
+                              information
+    - link (int64, percentage, gauge) - general quality of the reception
+    - level (int64, dBm, gauge) - signal strength at the receiver
+    - noise (int64, dBm, gauge) - silence level (no packet) at the receiver
+    - nwid (int64, packets, counter) - number of discarded packets due to
+                                       invalid network id
+    - crypt (int64, packets, counter) - number of packet unable to decrypt
+    - frag (int64, packets, counter) - fragmented packets
+    - retry (int64, packets, counter) - cumulative retry counts
+    - misc (int64, packets, counter) - dropped for un-specified reason
+    - missed_beacon (int64, packets, counter) - missed beacon packets
+
+## Example Output
+
+This section shows example output in Line Protocol format.
+
+```text
+wireless,host=example.localdomain,interface=wlan0 misc=0i,frag=0i,link=60i,level=-50i,noise=-256i,nwid=0i,crypt=0i,retry=1525i,missed_beacon=0i,status=0i 1519843022000000000
+```