Merge pull request #990 from freifunk-ffm/christf_get_mesh_interfaces
gluon-core: add function to gluon.util that returns all active mesh-devices
This commit is contained in:
Matthias Schiffer
GitHub
commit
2ddf77fc81
@ -1,25 +1,25 @@
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-- Writes all lines from the file input to the file output except those starting with prefix
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-- Doesn't close the output file, but returns the file object
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local function do_filter_prefix(input, output, prefix)
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local f = io.open(output, 'w+')
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local l = prefix:len()
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local f = io.open(output, 'w+')
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local l = prefix:len()
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for line in io.lines(input) do
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if line:sub(1, l) ~= prefix then
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f:write(line, '\n')
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end
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end
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for line in io.lines(input) do
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if line:sub(1, l) ~= prefix then
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f:write(line, '\n')
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end
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end
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return f
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return f
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end
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local function escape_args(ret, arg0, ...)
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if not arg0 then
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return ret
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end
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if not arg0 then
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return ret
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end
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return escape_args(ret .. "'" .. string.gsub(arg0, "'", "'\\''") .. "' ", ...)
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return escape_args(ret .. "'" .. string.gsub(arg0, "'", "'\\''") .. "' ", ...)
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end
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@ -38,79 +38,88 @@ local uci = require('luci.model.uci').cursor()
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local lutil = require 'luci.util'
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local fs = require 'nixio.fs'
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module 'gluon.util'
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function exec(...)
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return os.execute(escape_args('', 'exec', ...))
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return os.execute(escape_args('', 'exec', ...))
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end
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-- Removes all lines starting with a prefix from a file, optionally adding a new one
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function replace_prefix(file, prefix, add)
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local tmp = file .. '.tmp'
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local f = do_filter_prefix(file, tmp, prefix)
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if add then
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f:write(add)
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end
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f:close()
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os.rename(tmp, file)
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local tmp = file .. '.tmp'
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local f = do_filter_prefix(file, tmp, prefix)
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if add then
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f:write(add)
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end
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f:close()
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os.rename(tmp, file)
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end
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function readline(fd)
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local line = fd:read('*l')
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fd:close()
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return line
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local line = fd:read('*l')
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fd:close()
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return line
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end
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function lock(file)
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exec('lock', file)
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exec('lock', file)
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end
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function unlock(file)
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exec('lock', '-u', file)
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exec('lock', '-u', file)
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end
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function node_id()
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return string.gsub(sysconfig.primary_mac, ':', '')
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return string.gsub(sysconfig.primary_mac, ':', '')
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end
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function get_mesh_devices(uconn)
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local dump = uconn:call("network.interface", "dump", {})
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local devices = {}
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for _, interface in ipairs(dump.interface) do
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if ( (interface.proto == "gluon_mesh") and interface.up ) then
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table.insert(devices, interface.device)
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end
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end
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return devices
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end
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local function find_phy_by_path(path)
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for phy in fs.glob('/sys/devices/' .. path .. '/ieee80211/phy*') do
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return phy:match('([^/]+)$')
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end
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for phy in fs.glob('/sys/devices/' .. path .. '/ieee80211/phy*') do
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return phy:match('([^/]+)$')
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end
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end
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local function find_phy_by_macaddr(macaddr)
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local addr = macaddr:lower()
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for file in fs.glob('/sys/class/ieee80211/*/macaddress') do
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if lutil.trim(fs.readfile(file)) == addr then
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return file:match('([^/]+)/macaddress$')
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end
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end
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local addr = macaddr:lower()
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for file in fs.glob('/sys/class/ieee80211/*/macaddress') do
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if lutil.trim(fs.readfile(file)) == addr then
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return file:match('([^/]+)/macaddress$')
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end
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end
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end
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local function find_phy(radio)
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local config = uci:get_all('wireless', radio)
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local config = uci:get_all('wireless', radio)
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if not config or config.type ~= 'mac80211' then
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return nil
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elseif config.path then
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return find_phy_by_path(config.path)
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elseif config.macaddr then
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return find_phy_by_macaddr(config.macaddr)
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else
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return nil
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end
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if not config or config.type ~= 'mac80211' then
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return nil
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elseif config.path then
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return find_phy_by_path(config.path)
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elseif config.macaddr then
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return find_phy_by_macaddr(config.macaddr)
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else
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return nil
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end
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end
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local function get_addresses(radio)
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local phy = find_phy(radio)
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if not phy then
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return function() end
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end
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local phy = find_phy(radio)
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if not phy then
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return function() end
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end
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return io.lines('/sys/class/ieee80211/' .. phy .. '/addresses')
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return io.lines('/sys/class/ieee80211/' .. phy .. '/addresses')
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end
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-- Generates a (hopefully) unique MAC address
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@ -126,70 +135,70 @@ end
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-- 6: ibss1
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-- 7: wan_radio1 (private WLAN); mesh VPN
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function generate_mac(i)
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if i > 7 or i < 0 then return nil end -- max allowed id (0b111)
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if i > 7 or i < 0 then return nil end -- max allowed id (0b111)
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local hashed = string.sub(hash.md5(sysconfig.primary_mac), 0, 12)
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local m1, m2, m3, m4, m5, m6 = string.match(hashed, '(%x%x)(%x%x)(%x%x)(%x%x)(%x%x)(%x%x)')
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local hashed = string.sub(hash.md5(sysconfig.primary_mac), 0, 12)
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local m1, m2, m3, m4, m5, m6 = string.match(hashed, '(%x%x)(%x%x)(%x%x)(%x%x)(%x%x)(%x%x)')
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m1 = tonumber(m1, 16)
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m6 = tonumber(m6, 16)
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m1 = tonumber(m1, 16)
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m6 = tonumber(m6, 16)
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m1 = nixio.bit.bor(m1, 0x02) -- set locally administered bit
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m1 = nixio.bit.band(m1, 0xFE) -- unset the multicast bit
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m1 = nixio.bit.bor(m1, 0x02) -- set locally administered bit
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m1 = nixio.bit.band(m1, 0xFE) -- unset the multicast bit
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-- It's necessary that the first 45 bits of the MAC address don't
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-- vary on a single hardware interface, since some chips are using
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-- a hardware MAC filter. (e.g 'rt305x')
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-- It's necessary that the first 45 bits of the MAC address don't
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-- vary on a single hardware interface, since some chips are using
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-- a hardware MAC filter. (e.g 'rt305x')
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m6 = nixio.bit.band(m6, 0xF8) -- zero the last three bits (space needed for counting)
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m6 = m6 + i -- add virtual interface id
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m6 = nixio.bit.band(m6, 0xF8) -- zero the last three bits (space needed for counting)
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m6 = m6 + i -- add virtual interface id
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return string.format('%02x:%s:%s:%s:%s:%02x', m1, m2, m3, m4, m5, m6)
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return string.format('%02x:%s:%s:%s:%s:%02x', m1, m2, m3, m4, m5, m6)
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end
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local function get_wlan_mac_from_driver(radio, vif)
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local primary = sysconfig.primary_mac:lower()
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local primary = sysconfig.primary_mac:lower()
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local i = 1
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for addr in get_addresses(radio) do
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if addr:lower() ~= primary then
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if i == vif then
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return addr
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end
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local i = 1
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for addr in get_addresses(radio) do
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if addr:lower() ~= primary then
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if i == vif then
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return addr
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end
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i = i + 1
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end
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end
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i = i + 1
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end
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end
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end
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function get_wlan_mac(radio, index, vif)
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local addr = get_wlan_mac_from_driver(radio, vif)
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if addr then
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return addr
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end
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local addr = get_wlan_mac_from_driver(radio, vif)
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if addr then
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return addr
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end
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return generate_mac(4*(index-1) + (vif-1))
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return generate_mac(4*(index-1) + (vif-1))
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end
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-- Iterate over all radios defined in UCI calling
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-- f(radio, index, site.wifiX) for each radio found while passing
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-- site.wifi24 for 2.4 GHz devices and site.wifi5 for 5 GHz ones.
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function iterate_radios(f)
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local radios = {}
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local radios = {}
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uci:foreach('wireless', 'wifi-device',
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function(s)
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table.insert(radios, s['.name'])
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end
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)
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uci:foreach('wireless', 'wifi-device',
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function(s)
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table.insert(radios, s['.name'])
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end
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)
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for index, radio in ipairs(radios) do
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local hwmode = uci:get('wireless', radio, 'hwmode')
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for index, radio in ipairs(radios) do
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local hwmode = uci:get('wireless', radio, 'hwmode')
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if hwmode == '11g' or hwmode == '11ng' then
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f(radio, index, site.wifi24)
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elseif hwmode == '11a' or hwmode == '11na' then
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f(radio, index, site.wifi5)
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end
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end
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if hwmode == '11g' or hwmode == '11ng' then
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f(radio, index, site.wifi24)
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elseif hwmode == '11a' or hwmode == '11na' then
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f(radio, index, site.wifi5)
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end
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end
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end
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