hostapd: Enable WMM by default.

[people/ms/network.git] / functions.wireless

diff --git a/functions.wireless b/functions.wireless
index 7cf0b3fcdb5ae9d0af776fbc0aed1a2af3aefc84..cd17de4cf97d99568933b3137f1c89005d91b09b 100644 (file)
--- a/functions.wireless
+++ b/functions.wireless
@@ -51,7 +51,7 @@ function wireless_create() {
                shift
        done
 
-       assert isoneof type managed __ap
+       assert isoneof type ibss managed __ap
        assert phy_exists ${phy}
        isset address || address=$(mac_generate)
 
@@ -95,6 +95,38 @@ function wireless_remove() {
        return ${ret}
 }
 
+function wireless_channel_to_frequency() {
+       # http://en.wikipedia.org/wiki/List_of_WLAN_channels
+
+       local channel=${1}
+       assert isset channel
+
+       # Channel number must be positive.
+       assert [ "${channel}" -gt 0 ]
+
+       # 2.4 GHz band
+       case "${channel}" in
+               [123456789]|1[0123])
+                       print "$(( 2407 + (${channel} * 5)))"
+                       return ${EXIT_OK}
+                       ;;
+               14)
+                       print "2484"
+                       return ${EXIT_OK}
+                       ;;
+       esac
+
+       # 5 GHz band
+       case "${channel}" in
+               3[68]|4[02468]|5[26]|6[04]|10[048]|11[26]|12[048]|13[26]|14[09]|15[37]|16[15])
+                       print "$(( 5000 + (${channel} * 5)))"
+                       return ${EXIT_OK}
+                       ;;
+       esac
+
+       return ${EXIT_ERROR}
+}
+
 function wireless_set_channel() {
        local device=${1}
        assert isset device
@@ -106,3 +138,61 @@ function wireless_set_channel() {
 
        cmd_quiet iw dev ${device} set channel ${channel}
 }
+
+function wireless_ibss_join() {
+       local device=${1}
+       assert isset device
+       shift
+
+       local bssid
+       local essid
+       local frequency
+
+       while [ $# -gt 0 ]; do
+               case "${1}" in
+                       --bssid=*)
+                               bssid="$(cli_get_val ${1})"
+                               ;;
+                       --essid=*)
+                               essid="$(cli_get_val ${1})"
+                               ;;
+                       --channel=*)
+                               local channel="$(cli_get_val ${1})"
+
+                               # Save the frequency of the channel instead
+                               # of the channel itself.
+                               if isset channel; then
+                                       frequency="$(wireless_channel_to_frequency ${channel})"
+                               fi
+                               ;;
+               esac
+               shift
+       done
+
+       # Check input.
+       assert ismac bssid
+       assert isset essid
+       assert isinteger frequency
+
+       # Set device up.
+       device_set_up "${device}"
+
+       log INFO "${device} joining ibss network: ${essid} (${bssid})"
+       cmd_quiet iw dev "${device}" ibss join "${essid}" \
+               "${frequency}" fixed-freq "${bssid}"
+}
+
+function wireless_ibss_leave() {
+       local device=${1}
+       assert isset device
+
+       log INFO "${device} leaving ibss network"
+       cmd_quiet iw dev "${device}" ibss leave
+}
+
+function wireless_is_radar_frequency() {
+       local frequency="${1}"
+       assert isset frequency
+
+       [[ ${frequency} -ge 5260 ]] && [[ ${frequency} -le 5700 ]]
+}