--- LuCI Linux and POSIX system utilities.
module("luci.sys", package.seeall)
require("posix")
-require("luci.bits")
require("luci.util")
require("luci.fs")
+require("luci.ip")
--- Invoke the luci-flash executable to write an image to the flash memory.
-- @param kpattern Pattern of files to keep over flash process
return os.execute(cmd)
end
+--- Retrieve information about currently mounted file systems.
+-- @return Table containing mount information
+function mounts()
+ local data = {}
+ local k = {"fs", "blocks", "used", "available", "percent", "mountpoint"}
+ local ps = luci.util.execi("df")
+
+ if not ps then
+ return
+ else
+ ps()
+ end
+
+ for line in ps do
+ local row = {}
+
+ local j = 1
+ for value in line:gmatch("[^%s]+") do
+ row[k[j]] = value
+ j = j + 1
+ end
+
+ if row[k[1]] then
+ table.insert(data, row)
+ end
+ end
+
+ return data
+end
+
--- Retrieve environment variables. If no variable is given then a table
-- containing the whole environment is returned otherwise this function returns
-- the corresponding string value for the given name or nil if no such variable
return _parse_delimited_table(io.lines("/proc/net/arp"), "%s%s+")
end
---- Test whether an IP-Adress belongs to a certain net.
--- @param ip IPv4 address to test
--- @param ipnet IPv4 network address of the net range to compare against
--- @param prefix Network prefix of the net range to compare against
--- @return Boolean indicating wheather the ip is within the range
-function net.belongs(ip, ipnet, prefix)
- return (net.ip4bin(ip):sub(1, prefix) == net.ip4bin(ipnet):sub(1, prefix))
-end
-
--- Determine the current default route.
-- @return Table with the properties of the current default route.
-- The following fields are defined:
return devices
end
+
+--- Return information about available network interfaces.
+-- @return Table containing all current interface names and their information
+function net.deviceinfo()
+ local devices = {}
+ for line in io.lines("/proc/net/dev") do
+ local name, data = line:match("^ *(.-): *(.*)$")
+ if name and data then
+ devices[name] = luci.util.split(data, " +", nil, true)
+ end
+ end
+ return devices
+end
+
+
-- Determine the MAC address belonging to the given IP address.
-- @param ip IPv4 address
-- @return String containing the MAC address or nil if it cannot be found
return mac
end
---- Calculate the prefix from a given netmask.
--- @param mask IPv4 net mask
--- @return Number containing the corresponding numerical prefix
-function net.mask4prefix(mask)
- local bin = net.ip4bin(mask)
-
- if not bin then
- return nil
- end
-
- return #luci.util.split(bin, "1")-1
-end
-
--- Returns the current kernel routing table entries.
-- @return Table of tables with properties of the corresponding routes.
-- The following fields are defined for route entry tables:
return _parse_delimited_table(io.lines("/proc/net/route"))
end
---- Convert hexadecimal 32 bit value to IPv4 address.
--- @param hex String containing the hexadecimal value
--- @param be Boolean indicating wheather the given value is big endian
--- @return String containing the corresponding IP4 address
-function net.hexip4(hex, be)
- if #hex ~= 8 then
- return nil
- end
-
- be = be or luci.util.bigendian()
-
- local hexdec = luci.bits.Hex2Dec
-
- local ip = ""
- if be then
- ip = ip .. tostring(hexdec(hex:sub(1,2))) .. "."
- ip = ip .. tostring(hexdec(hex:sub(3,4))) .. "."
- ip = ip .. tostring(hexdec(hex:sub(5,6))) .. "."
- ip = ip .. tostring(hexdec(hex:sub(7,8)))
- else
- ip = ip .. tostring(hexdec(hex:sub(7,8))) .. "."
- ip = ip .. tostring(hexdec(hex:sub(5,6))) .. "."
- ip = ip .. tostring(hexdec(hex:sub(3,4))) .. "."
- ip = ip .. tostring(hexdec(hex:sub(1,2)))
- end
-
- return ip
-end
-
---- Convert given IPv4 address to binary value.
--- @param ip String containing a IPv4 address
--- @return String containing corresponding binary value
-function net.ip4bin(ip)
- local parts = luci.util.split(ip, '.')
- if #parts ~= 4 then
- return nil
- end
-
- local decbin = luci.bits.Dec2Bin
-
- local bin = ""
- bin = bin .. decbin(parts[1], 8)
- bin = bin .. decbin(parts[2], 8)
- bin = bin .. decbin(parts[3], 8)
- bin = bin .. decbin(parts[4], 8)
-
- return bin
-end
--- Tests whether the given host responds to ping probes.
-- @param host String containing a hostname or IPv4 address
-- @return Number containing the current pid
process.info = posix.getpid
+--- Retrieve information about currently running processes.
+-- @return Table containing process information
+function process.list()
+ local data = {}
+ local k
+ local ps = luci.util.execi("top -bn1")
+
+ if not ps then
+ return
+ end
+
+ while true do
+ local line = ps()
+ if not line then
+ return
+ end
+
+ k = luci.util.split(luci.util.trim(line), "%s+", nil, true)
+ if k[1] == "PID" then
+ break
+ end
+ end
+
+ for line in ps do
+ local row = {}
+
+ line = luci.util.trim(line)
+ for i, value in ipairs(luci.util.split(line, "%s+", #k-1, true)) do
+ row[k[i]] = value
+ end
+
+ local pid = tonumber(row[k[1]])
+ if pid then
+ data[pid] = row
+ end
+ end
+
+ return data
+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 posix.setpid("u", pid, uid)
end
+--- Send a signal to a process identified by given pid.
+-- @param pid Number containing the process id
+-- @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
+
--- LuCI system utilities / user related functions.
-- @class module
function user.checkpasswd(username, password)
local account = user.getuser(username)
- -- FIXME: detect testing environment
- if luci.fs.stat("/etc/shadow") and not luci.fs.access("/etc/shadow", "r") then
- return true
- elseif account then
+ if account then
if account.passwd == "!" then
return true
else
projects / project / luci.git / blobdiff