--- /dev/null
+--- a/configure.in
++++ b/configure.in
+@@ -471,6 +471,9 @@ AC_CHECK_HEADERS(netinet/if_ether.h, [],
+ have_termios_h="no"
+ AC_CHECK_HEADERS(termios.h, [have_termios_h="yes"])
+
++# For the iwinfo plugin
++AC_CHECK_LIB(iwinfo, iwinfo_backend, [with_iwinfo="yes"], [with_iwinfo="no (libiwinfo not found)"], [])
++
+ #
+ # Checks for typedefs, structures, and compiler characteristics.
+ #
+@@ -3985,6 +3988,7 @@ plugin_interface="no"
+ plugin_ipmi="no"
+ plugin_ipvs="no"
+ plugin_irq="no"
++plugin_iwinfo="no"
+ plugin_libvirt="no"
+ plugin_load="no"
+ plugin_memory="no"
+@@ -4292,6 +4296,7 @@ AC_PLUGIN([ipmi], [$plugin_ipmi],
+ AC_PLUGIN([iptables], [$with_libiptc], [IPTables rule counters])
+ AC_PLUGIN([ipvs], [$plugin_ipvs], [IPVS connection statistics])
+ AC_PLUGIN([irq], [$plugin_irq], [IRQ statistics])
++AC_PLUGIN([iwinfo], [$with_iwinfo], [Common iwinfo wireless statistics])
+ AC_PLUGIN([java], [$with_java], [Embed the Java Virtual Machine])
+ AC_PLUGIN([libvirt], [$plugin_libvirt], [Virtual machine statistics])
+ AC_PLUGIN([load], [$plugin_load], [System load])
+@@ -4570,6 +4575,7 @@ Configuration:
+ protobuf-c . . . . . $have_protoc_c
+ oracle . . . . . . . $with_oracle
+ python . . . . . . . $with_python
++ iwinfo . . . . . . . $with_iwinfo
+
+ Features:
+ daemon mode . . . . . $enable_daemon
+@@ -4609,6 +4615,7 @@ Configuration:
+ iptables . . . . . . $enable_iptables
+ ipvs . . . . . . . . $enable_ipvs
+ irq . . . . . . . . . $enable_irq
++ iwinfo . . . . . . . $enable_iwinfo
+ java . . . . . . . . $enable_java
+ libvirt . . . . . . . $enable_libvirt
+ load . . . . . . . . $enable_load
+--- a/src/collectd.conf.in
++++ b/src/collectd.conf.in
+@@ -82,6 +82,7 @@ FQDNLookup true
+ #@BUILD_PLUGIN_IPMI_TRUE@LoadPlugin ipmi
+ #@BUILD_PLUGIN_IPVS_TRUE@LoadPlugin ipvs
+ #@BUILD_PLUGIN_IRQ_TRUE@LoadPlugin irq
++#@BUILD_PLUGIN_IWINFO_TRUE@LoadPlugin iwinfo
+ #@BUILD_PLUGIN_JAVA_TRUE@LoadPlugin java
+ #@BUILD_PLUGIN_LIBVIRT_TRUE@LoadPlugin libvirt
+ @BUILD_PLUGIN_LOAD_TRUE@@BUILD_PLUGIN_LOAD_TRUE@LoadPlugin load
+@@ -372,6 +373,12 @@ FQDNLookup true
+ # IgnoreSelected true
+ #</Plugin>
+
++#<Plugin iwinfo>
++# Interface "ath0"
++# Interface "ra0"
++# Interface "wlan0"
++#</Plugin>
++
+ #<Plugin "java">
+ # JVMArg "-verbose:jni"
+ # JVMArg "-Djava.class.path=@prefix@/share/collectd/java/collectd-api.jar"
+--- a/src/collectd.conf.pod
++++ b/src/collectd.conf.pod
+@@ -1468,6 +1468,27 @@ and all other interrupts are collected.
+
+ =back
+
++=head2 Plugin C<iwinfo>
++
++=over 4
++
++=item B<Interface> I<Interface>
++
++Select this interface. By default all detected wireless interfaces will be
++collected. For a more detailed description see B<IgnoreSelected> below.
++
++=item B<IgnoreSelected> I<true>|I<false>
++
++If no configuration if given, the B<iwinfo>-plugin will collect data from all
++detected wireless interfaces. You can use the B<Interface>-option to pick the
++interfaces you're interested in. Sometimes, however, it's easier/preferred to
++collect all interfaces I<except> a few ones. This option enables you to do
++that: By setting B<IgnoreSelected> to I<true> the effect of B<Interface> is
++inverted: All selected interfaces are ignored and all other interfaces are
++collected.
++
++=back
++
+ =head2 Plugin C<java>
+
+ The I<Java> plugin makes it possible to write extensions for collectd in Java.
+--- /dev/null
++++ b/src/iwinfo.c
+@@ -0,0 +1,149 @@
++/**
++ * collectd - src/iwinfo.c
++ * Copyright (C) 2011 Jo-Philipp Wich
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; only version 2 of the License is applicable.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License along
++ * with this program; if not, write to the Free Software Foundation, Inc.,
++ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
++ **/
++
++#include "collectd.h"
++#include "common.h"
++#include "plugin.h"
++#include "utils_ignorelist.h"
++
++#include <stdint.h>
++#include <iwinfo.h>
++
++#define PROCNETDEV "/proc/net/dev"
++
++static const char *config_keys[] = {
++ "Interface",
++ "IgnoreSelected"
++};
++static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
++
++static ignorelist_t *ignorelist = NULL;
++
++static int iwinfo_config(const char *key, const char *value)
++{
++ if (ignorelist == NULL)
++ ignorelist = ignorelist_create(1);
++
++ if (ignorelist == NULL)
++ return 1;
++
++ if (strcasecmp(key, "Interface") == 0)
++ ignorelist_add(ignorelist, value);
++ else if (strcasecmp(key, "IgnoreSelected") == 0)
++ ignorelist_set_invert(ignorelist, IS_TRUE(value) ? 0 : 1);
++ else
++ return -1;
++
++ return 0;
++}
++
++static void iwinfo_submit(const char *ifname, const char *type, int value)
++{
++ value_t values[1];
++ value_list_t vl = VALUE_LIST_INIT;
++
++ values[0].gauge = value;
++
++ vl.values = values;
++ vl.values_len = 1;
++
++ sstrncpy(vl.host, hostname_g, sizeof(vl.host));
++ sstrncpy(vl.plugin, "iwinfo", sizeof(vl.plugin));
++ sstrncpy(vl.plugin_instance, ifname, sizeof(vl.plugin_instance));
++ sstrncpy(vl.type, type, sizeof(vl.type));
++ /*sstrncpy(vl.type_instance, "", sizeof(vl.type_instance));*/
++
++ plugin_dispatch_values(&vl);
++}
++
++static void iwinfo_process(const char *ifname)
++{
++ int val;
++ char buf[IWINFO_BUFSIZE];
++ const struct iwinfo_ops *iw = iwinfo_backend(ifname);
++
++ /* does appear to be a wifi iface */
++ if (iw)
++ {
++ if (iw->bitrate(ifname, &val))
++ val = 0;
++ iwinfo_submit(ifname, "bitrate", val * 1000);
++
++ if (iw->signal(ifname, &val))
++ val = 0;
++ iwinfo_submit(ifname, "signal_power", val);
++
++ if (iw->noise(ifname, &val))
++ val = 0;
++ iwinfo_submit(ifname, "signal_noise", val);
++
++ if (iw->quality(ifname, &val))
++ val = 0;
++ iwinfo_submit(ifname, "signal_quality", val);
++
++ if (iw->assoclist(ifname, buf, &val))
++ val = 0;
++ iwinfo_submit(ifname, "stations", val);
++ }
++
++ iwinfo_finish();
++}
++
++static int iwinfo_read(void)
++{
++ char line[1024];
++ char ifname[128];
++ FILE *f;
++
++ f = fopen(PROCNETDEV, "r");
++ if (f == NULL)
++ {
++ char err[1024];
++ WARNING("iwinfo: Unable to open " PROCNETDEV ": %s",
++ sstrerror(errno, err, sizeof(err)));
++ return -1;
++ }
++
++ while (fgets(line, sizeof(line), f))
++ {
++ if (!strchr(line, ':'))
++ continue;
++
++ if (!sscanf(line, " %127[^:]", ifname))
++ continue;
++
++ if (ignorelist_match(ignorelist, ifname))
++ continue;
++
++ if (strstr(ifname, "mon.") || strstr(ifname, ".sta") ||
++ strstr(ifname, "tmp.") || strstr(ifname, "wifi"))
++ continue;
++
++ iwinfo_process(ifname);
++ }
++
++ fclose(f);
++
++ return 0;
++}
++
++void module_register(void)
++{
++ plugin_register_config("iwinfo", iwinfo_config, config_keys, config_keys_num);
++ plugin_register_read("iwinfo", iwinfo_read);
++}
+--- a/src/Makefile.am
++++ b/src/Makefile.am
+@@ -452,6 +452,15 @@ collectd_LDADD += "-dlopen" irq.la
+ collectd_DEPENDENCIES += irq.la
+ endif
+
++if BUILD_PLUGIN_IWINFO
++pkglib_LTLIBRARIES += iwinfo.la
++iwinfo_la_SOURCES = iwinfo.c
++iwinfo_la_LDFLAGS = -module -avoid-version
++iwinfo_la_LIBADD = -liwinfo
++collectd_LDADD += "-dlopen" iwinfo.la
++collectd_DEPENDENCIES += iwinfo.la
++endif
++
+ if BUILD_PLUGIN_JAVA
+ pkglib_LTLIBRARIES += java.la
+ java_la_SOURCES = java.c
+--- a/src/types.db
++++ b/src/types.db
+@@ -171,3 +171,4 @@ voltage value:GAUGE:U:U
+ vs_memory value:GAUGE:0:9223372036854775807
+ vs_processes value:GAUGE:0:65535
+ vs_threads value:GAUGE:0:65535
++stations value:GAUGE:0:256