local io = require "io"
local os = require "os"
-local posix = require "posix"
+local nixio = require "nixio"
local table = require "table"
local luci = {}
luci.fs = require "luci.fs"
luci.ip = require "luci.ip"
-local tonumber, ipairs, pairs, pcall = tonumber, ipairs, pairs, pcall
+local tonumber, ipairs, pairs, pcall, type =
+ tonumber, ipairs, pairs, pcall, type
--- LuCI Linux and POSIX system utilities.
-- @param var Name of the environment variable to retrieve (optional)
-- @return String containg the value of the specified variable
-- @return Table containing all variables if no variable name is given
-getenv = posix.getenv
+getenv = nixio.getenv
---- Determine the current hostname.
+--- Get or set the current hostname.
+-- @param String containing a new hostname to set (optional)
-- @return String containing the system hostname
-function hostname()
- return posix.uname("%n")
+function hostname(newname)
+ if type(newname) == "string" and #newname > 0 then
+ luci.fs.writefile( "/proc/sys/kernel/hostname", newname .. "\n" )
+ return newname
+ else
+ return nixio.uname().nodename
+ end
end
--- Returns the contents of a documented referred by an URL.
-- @return String containing the average load value 1 minute ago
-- @return String containing the average load value 5 minutes ago
-- @return String containing the average load value 15 minutes ago
--- @return String containing the active and total number of processes
--- @return String containing the last used pid
function loadavg()
- local loadavg = io.lines("/proc/loadavg")()
- return loadavg:match("^(.-) (.-) (.-) (.-) (.-)$")
+ local info = nixio.sysinfo()
+ return info.loads[1], info.loads[2], info.loads[3]
end
--- Initiate a system reboot.
local membuffers = tonumber(meminfo:match("Buffers:%s*(%d+)"))
if not system then
- system = posix.uname("%m")
+ system = nixio.uname().machine
model = cpuinfo:match("model name.-:%s*([^\n]+)")
if not model then
model = cpuinfo:match("Processor.-:%s*([^\n]+)")
return loadavg:match("^(.-) (.-)$")
end
---- LuCI system utilities / POSIX user group related functions.
--- @class module
--- @name luci.sys.group
-group = {}
-
---- Returns information about a POSIX user group.
--- @class function
--- @name getgroup
--- @param group Group ID or name of a system user group
--- @return Table with information about the requested group
-group.getgroup = posix.getgroup
-
--- LuCI system utilities / network related functions.
-- @class module
-- @return Table with the currently tracked IP connections
function net.conntrack()
local connt = {}
- if luci.fs.access("/proc/net/nf_conntrack") then
+ if luci.fs.access("/proc/net/nf_conntrack", "r") then
for line in io.lines("/proc/net/nf_conntrack") do
+ line = line:match "^(.-( [^ =]+=).-)%2"
local entry, flags = _parse_mixed_record(line, " +")
entry.layer3 = flags[1]
- entry.layer4 = flags[2]
+ entry.layer4 = flags[3]
for i=1, #entry do
entry[i] = nil
end
connt[#connt+1] = entry
end
- elseif luci.fs.access("/proc/net/ip_conntrack") then
+ elseif luci.fs.access("/proc/net/ip_conntrack", "r") then
for line in io.lines("/proc/net/ip_conntrack") do
+ line = line:match "^(.-( [^ =]+=).-)%2"
local entry, flags = _parse_mixed_record(line, " +")
entry.layer3 = "ipv4"
entry.layer4 = flags[1]
-- { "dest", "gateway", "metric", "refcount", "usecount", "irtt",
-- "flags", "device" }
function net.defaultroute()
- local route = nil
- for _, r in pairs(net.routes()) do
- if r.dest:prefix() == 0 and (not route or route.metric > r.metric) then
- route = r
+ local route
+
+ net.routes(function(rt)
+ if rt.dest:prefix() == 0 and (not route or route.metric > rt.metric) then
+ route = rt
end
- end
+ end)
+
return route
end
-- { "source", "dest", "nexthop", "metric", "refcount", "usecount",
-- "flags", "device" }
function net.defaultroute6()
- local route = nil
- for _, r in pairs(net.routes6()) do
- if r.dest:prefix() == 0 and (not route or route.metric > r.metric) then
- route = r
+ local route = nil
+ local routes6 = net.routes6()
+ if routes6 then
+ for _, r in pairs(routes6) do
+ if r.dest:prefix() == 0 and
+ (not route or route.metric > r.metric)
+ then
+ route = r
+ end
end
end
return route
-- The following fields are defined for route entry tables:
-- { "dest", "gateway", "metric", "refcount", "usecount", "irtt",
-- "flags", "device" }
-function net.routes()
+function net.routes(callback)
local routes = { }
for line in io.lines("/proc/net/route") do
dst_ip, dst_mask:prefix(dst_mask), luci.ip.FAMILY_INET4
)
- routes[#routes+1] = {
+ local rt = {
dest = dst_ip,
gateway = gateway,
metric = tonumber(metric),
flags = tonumber(flags, 16),
device = dev
}
+
+ if callback then
+ callback(rt)
+ else
+ routes[#routes+1] = rt
+ end
end
end
-- { "source", "dest", "nexthop", "metric", "refcount", "usecount",
-- "flags", "device" }
function net.routes6()
- local routes = { }
+ if luci.fs.access("/proc/net/ipv6_route", "r") then
+ local routes = { }
+
+ for line in io.lines("/proc/net/ipv6_route") do
+
+ local dst_ip, dst_prefix, src_ip, src_prefix, nexthop,
+ metric, refcnt, usecnt, flags, dev = line:match(
+ "([a-f0-9]+) ([a-f0-9]+) " ..
+ "([a-f0-9]+) ([a-f0-9]+) " ..
+ "([a-f0-9]+) ([a-f0-9]+) " ..
+ "([a-f0-9]+) ([a-f0-9]+) " ..
+ "([a-f0-9]+) +([^%s]+)"
+ )
- for line in io.lines("/proc/net/ipv6_route") do
+ src_ip = luci.ip.Hex(
+ src_ip, tonumber(src_prefix, 16), luci.ip.FAMILY_INET6, false
+ )
- local dst_ip, dst_prefix, src_ip, src_prefix, nexthop,
- metric, refcnt, usecnt, flags, dev = line:match(
- "([a-f0-9]+) ([a-f0-9]+) " ..
- "([a-f0-9]+) ([a-f0-9]+) " ..
- "([a-f0-9]+) ([a-f0-9]+) " ..
- "([a-f0-9]+) ([a-f0-9]+) " ..
- "([a-f0-9]+) +([^%s]+)"
- )
+ dst_ip = luci.ip.Hex(
+ dst_ip, tonumber(dst_prefix, 16), luci.ip.FAMILY_INET6, false
+ )
- src_ip = luci.ip.Hex(
- src_ip, tonumber(src_prefix, 16), luci.ip.FAMILY_INET6, false
- )
+ nexthop = luci.ip.Hex( nexthop, 128, luci.ip.FAMILY_INET6, false )
- dst_ip = luci.ip.Hex(
- dst_ip, tonumber(dst_prefix, 16), luci.ip.FAMILY_INET6, false
- )
+ routes[#routes+1] = {
+ source = src_ip,
+ dest = dst_ip,
+ nexthop = nexthop,
+ metric = tonumber(metric, 16),
+ refcount = tonumber(refcnt, 16),
+ usecount = tonumber(usecnt, 16),
+ flags = tonumber(flags, 16),
+ device = dev
+ }
+ end
- nexthop = luci.ip.Hex( nexthop, 128, luci.ip.FAMILY_INET6, false )
-
- routes[#routes+1] = {
- source = src_ip,
- dest = dst_ip,
- nexthop = nexthop,
- metric = tonumber(metric, 16),
- refcount = tonumber(refcnt, 16),
- usecount = tonumber(usecnt, 16),
- flags = tonumber(flags, 16),
- device = dev
- }
+ return routes
end
-
- return routes
end
--- Tests whether the given host responds to ping probes.
-- @class function
-- @name process.info
-- @return Number containing the current pid
-process.info = posix.getpid
+function process.info(key)
+ local s = {uid = nixio.getuid(), gid = nixio.getgid()}
+ return not key and s or s[key]
+end
--- Retrieve information about currently running processes.
-- @return Table containing process information
end
--- Set the gid of a process identified by given pid.
--- @param pid Number containing the process id
-- @param gid Number containing the Unix group id
-- @return Boolean indicating successful operation
-- @return String containing the error message if failed
-- @return Number containing the error code if failed
-function process.setgroup(pid, gid)
- return posix.setpid("g", pid, gid)
+function process.setgroup(gid)
+ return nixio.setgid(gid)
end
--- Set the uid of a process identified by given pid.
--- @param pid Number containing the process id
-- @param uid Number containing the Unix user id
-- @return Boolean indicating successful operation
-- @return String containing the error message if failed
-- @return Number containing the error code if failed
-function process.setuser(pid, uid)
- return posix.setpid("u", pid, uid)
+function process.setuser(uid)
+ return nixio.setuid(uid)
end
--- Send a signal to a process identified by given pid.
-- @param sig Signal to send (default: 15 [SIGTERM])
-- @return Boolean indicating successful operation
-- @return Number containing the error code if failed
-process.signal = posix.kill
+process.signal = nixio.kill
--- LuCI system utilities / user related functions.
-- @param uid Number containing the Unix user id
-- @return Table containing the following fields:
-- { "uid", "gid", "name", "passwd", "dir", "shell", "gecos" }
-user.getuser = posix.getpasswd
+user.getuser = nixio.getpw
--- Test whether given string matches the password of a given system user.
-- @param username String containing the Unix user name
--- @param password String containing the password to compare
+-- @param pass String containing the password to compare
-- @return Boolean indicating wheather the passwords are equal
-function user.checkpasswd(username, password)
- local account = user.getuser(username)
-
- if account then
- local pwd = account.passwd
- local shadowpw
- if #pwd == 1 then
- if luci.fs.stat("/etc/shadow") then
- if not pcall(function()
- for l in io.lines("/etc/shadow") do
- shadowpw = l:match("^%s:([^:]+)" % username)
- if shadowpw then
- pwd = shadowpw
- break
- end
- end
- end) then
- return nil, "Unable to access shadow-file"
- end
- end
-
- if pwd == "!" then
- return true
- end
- end
-
- if pwd and #pwd > 0 and password and #password > 0 then
- return (pwd == posix.crypt(password, pwd))
- end
+function user.checkpasswd(username, pass)
+ local pwe = nixio.getsp and nixio.getsp(username) or nixio.getpw(username)
+ local pwh = pwe and (pwe.pwdp or pwe.passwd)
+ if not pwh or #pwh < 1 or pwh ~= "!" and nixio.crypt(pass, pwh) ~= pwh then
+ return false
+ else
+ return true
end
-
- return false
end
--- Change the password of given user.
--- Get iwconfig output for all wireless devices.
-- @return Table of tables containing the iwconfing output for each wifi device
function wifi.getiwconfig()
- local cnt = luci.util.exec("/usr/sbin/iwconfig 2>/dev/null")
+ local cnt = luci.util.exec("PATH=/sbin:/usr/sbin iwconfig 2>/dev/null")
local iwc = {}
for i, l in pairs(luci.util.split(luci.util.trim(cnt), "\n\n")) do
return iface and (iws[iface] or {}) or iws
end
+--- Get available channels from given wireless iface.
+-- @param iface Wireless interface (optional)
+-- @return Table of available channels
+function wifi.channels(iface)
+ local cmd = "iwlist " .. ( iface or "" ) .. " freq 2>/dev/null"
+ local cns = { }
+
+ local fd = io.popen(cmd)
+ if fd then
+ local ln, c, f
+ while true do
+ ln = fd:read("*l")
+ if not ln then break end
+ c, f = ln:match("Channel (%d+) : (%d+%.%d+) GHz")
+ if c and f then
+ cns[tonumber(c)] = tonumber(f)
+ end
+ end
+ fd:close()
+ end
+
+ if not ((pairs(cns))(cns)) then
+ cns = {
+ 2.412, 2.417, 2.422, 2.427, 2.432, 2.437,
+ 2.442, 2.447, 2.452, 2.457, 2.462
+ }
+ end
+
+ return cns
+end
+
--- LuCI system utilities / init related functions.
-- @class module
for i, l in pairs(luci.util.split(luci.util.trim(cnt), "\n")) do
for j, f in pairs(luci.util.split(luci.util.trim(l), delimiter, nil, true)) do
- local k, x, v = f:match('([^%s][^:=]+) *([:=]*) *"*([^\n"]*)"*')
+ local k, x, v = f:match('([^%s][^:=]*) *([:=]*) *"*([^\n"]*)"*')
if k then
if x == "" then