libs/core: Outsourced luci.sys to own directory

2 files changed, 0 insertions, 737 deletions

diff --git a/libs/core/luasrc/sys.lua b/libs/core/luasrc/sys.lua
deleted file mode 100644
index 14a2f294f3..0000000000
--- a/libs/core/luasrc/sys.lua
+++ /dev/null
@@ -1,493 +0,0 @@
---[[
-LuCI - System library
-
-Description:
-Utilities for interaction with the Linux system
-
-FileId:
-$Id$
-
-License:
-Copyright 2008 Steven Barth <steven@midlink.org>
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-	http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
-]]--
-
---- LuCI Linux and POSIX system utilities.
-module("luci.sys", package.seeall)
-require("posix")
-require("luci.bits")
-require("luci.util")
-require("luci.fs")
-
---- Invoke the luci-flash executable to write an image to the flash memory.
--- @param kpattern	Pattern of files to keep over flash process
--- @return			Return value of os.execute()
-function flash(image, kpattern)
-	local cmd = "luci-flash "
-	if kpattern then
-		cmd = cmd .. "-k '" .. kpattern:gsub("'", "") .. "' "
-	end
-	cmd = cmd .. "'" .. image:gsub("'", "") .. "' >/dev/null 2>&1"
-
-	return os.execute(cmd)
-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
--- exists.
--- @class		function
--- @name		getenv
--- @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
-
---- Determine the current hostname.
--- @return		String containing the system hostname
-function hostname()
-	return io.lines("/proc/sys/kernel/hostname")()
-end
-
---- Returns the contents of a documented referred by an URL.
--- @param url	 The URL to retrieve
--- @param stream Return a stream instead of a buffer
--- @return		String containing the contents of given the URL
-function httpget(url, stream)
-	local source = stream and io.open or luci.util.exec
-	return source("wget -qO- '"..url:gsub("'", "").."'")
-end
-
---- Returns the system load average values.
--- @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("^(.-) (.-) (.-) (.-) (.-)$")
-end
-
---- Initiate a system reboot.
--- @return	Return value of os.execute()
-function reboot()
-	return os.execute("reboot >/dev/null 2>&1")
-end
-
---- Returns the system type, cpu name and installed physical memory.
--- @return	String containing the system or platform identifier
--- @return	String containing hardware model information
--- @return	String containing the total memory amount in kB
--- @return	String containing the memory used for caching in kB
--- @return	String containing the memory used for buffering in kB
--- @return	String containing the free memory amount in kB
--- @return	Number containing free memory in percent
--- @return	Number containing buffer memory in percent
--- @return	Number containing cache memory in percent
-function sysinfo()
-	local c1 = "cat /proc/cpuinfo|grep system\\ typ|cut -d: -f2 2>/dev/null"
-	local c2 = "uname -m 2>/dev/null"
-	local c3 = "cat /proc/cpuinfo|grep model\\ name|cut -d: -f2 2>/dev/null"
-	local c4 = "cat /proc/cpuinfo|grep cpu\\ model|cut -d: -f2 2>/dev/null"
-	local c5 = "cat /proc/meminfo|grep MemTotal|awk {' print $2 '} 2>/dev/null"
-	local c6 = "cat /proc/meminfo|grep ^Cached|awk {' print $2 '} 2>/dev/null"
-	local c7 = "cat /proc/meminfo|grep MemFree|awk {' print $2 '} 2>/dev/null"
-	local c8 = "cat /proc/meminfo|grep Buffers|awk {' print $2 '} 2>/dev/null"
-
-	local system = luci.util.trim(luci.util.exec(c1))
-	local model = ""
-	local memtotal = luci.util.trim(luci.util.exec(c5))
-	local memcached = luci.util.trim(luci.util.exec(c6))
-	local memfree = luci.util.trim(luci.util.exec(c7))
-	local membuffers = luci.util.trim(luci.util.exec(c8))
-	local perc_memfree = math.floor((memfree/memtotal)*100)
-	local perc_membuffers = math.floor((membuffers/memtotal)*100)
-	local perc_memcached = math.floor((memcached/memtotal)*100)
-
-	if system == "" then
-		system = luci.util.trim(luci.util.exec(c2))
-		model = luci.util.trim(luci.util.exec(c3))
-	else
-		model = luci.util.trim(luci.util.exec(c4))
-	end
-
-	return system, model, memtotal, memcached, membuffers, memfree, perc_memfree, perc_membuffers, perc_memcached
-end
-
---- Retrieves the output of the "logread" command.
--- @return	String containing the current log buffer
-function syslog()
-	return luci.util.exec("logread")
-end
-
---- Generates a random id with specified length.
--- @param bytes	Number of bytes for the unique id
--- @return		String containing hex encoded id
-function uniqueid(bytes)
-	local fp    = io.open("/dev/urandom")
-	local chunk = { fp:read(bytes):byte(1, bytes) }
-	fp:close()
-
-	local hex = ""
-
-	local pattern = "%02X"
-	for i, byte in ipairs(chunk) do
-		hex = hex .. pattern:format(byte)
-	end
-
-	return hex
-end
-
---- Returns the current system uptime stats.
--- @return	String containing total uptime in seconds
--- @return	String containing idle time in seconds
-function uptime()
-	local loadavg = io.lines("/proc/uptime")()
-	return loadavg:match("^(.-) (.-)$")
-end
-
---- LuCI system utilities / POSIX user group related functions.
--- @class	module
--- @name	luci.sys.group
-group = {}
-
---- Returns information about a POSIX user group.
--- @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
--- @name	luci.sys.net
-net = {}
-
---- Returns the current arp-table entries as two-dimensional table.
--- @return	Table of table containing the current arp entries.
---			The following fields are defined for arp entry objects:
---			{ "IP address", "HW address", "HW type", "Flags", "Mask", "Device" }
-function net.arptable()
-	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:
---			{ "Mask", "RefCnt", "Iface", "Flags", "Window", "IRTT",
---			  "MTU", "Gateway", "Destination", "Metric", "Use" }
-function net.defaultroute()
-	local routes = net.routes()
-	local route = nil
-
-	for i, r in pairs(luci.sys.net.routes()) do
-		if r.Destination == "00000000" and (not route or route.Metric > r.Metric) then
-			route = r
-		end
-	end
-
-	return route
-end
-
---- Determine the names of available network interfaces.
--- @return	Table containing all current interface names
-function net.devices()
-	local devices = {}
-	for line in io.lines("/proc/net/dev") do
-		table.insert(devices, line:match(" *(.-):"))
-	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
-function net.ip4mac(ip)
-	local mac = nil
-
-	for i, l in ipairs(net.arptable()) do
-		if l["IP address"] == ip then
-			mac = l["HW address"]
-		end
-	end
-
-	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:
---			{ "Mask", "RefCnt", "Iface", "Flags", "Window", "IRTT",
---			  "MTU", "Gateway", "Destination", "Metric", "Use" }
-function net.routes()
-	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 0 on success and >= 1 on error
-function net.pingtest(host)
-	return os.execute("ping -c1 '"..host:gsub("'", '').."' >/dev/null 2>&1")
-end
-
-
---- LuCI system utilities / process related functions.
--- @class	module
--- @name	luci.sys.process
-process = {}
-
---- Get the current process id.
--- @return	Number containing the current pid
-process.info = posix.getpid
-
---- 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)
-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)
-end
-
-
---- LuCI system utilities / user related functions.
--- @class	module
--- @name	luci.sys.user
-user = {}
-
---- Retrieve user informations for given uid.
--- @class		function
--- @name		getuser
--- @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
-
---- 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
--- @return			Boolean indicating wheather the passwords are equal
-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.passwd == "!" then
-			return true
-		else
-			return (account.passwd == posix.crypt(password, account.passwd))
-		end
-	end
-end
-
---- Change the password of given user.
--- @param username	String containing the Unix user name
--- @param password	String containing the password to compare
--- @return			Number containing 0 on success and >= 1 on error
-function user.setpasswd(username, password)
-	if password then
-		password = password:gsub("'", "")
-	end
-
-	if username then
-		username = username:gsub("'", "")
-	end
-
-	local cmd = "(echo '"..password.."';sleep 1;echo '"..password.."')|"
-	cmd = cmd .. "passwd '"..username.."' >/dev/null 2>&1"
-	return os.execute(cmd)
-end
-
-
---- LuCI system utilities / wifi related functions.
--- @class	module
--- @name	luci.sys.wifi
-wifi = {}
-
---- 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 iwc = {}
-
-	for i, l in pairs(luci.util.split(luci.util.trim(cnt), "\n\n")) do
-		local k = l:match("^(.-) ")
-		l = l:gsub("^(.-) +", "", 1)
-		if k then
-			iwc[k] = _parse_mixed_record(l)
-		end
-	end
-
-	return iwc
-end
-
---- Get iwlist scan output from all wireless devices.
--- @return	Table of tables contaiing all scan results
-function wifi.iwscan()
-	local cnt = luci.util.exec("iwlist scan 2>/dev/null")
-	local iws = {}
-
-	for i, l in pairs(luci.util.split(luci.util.trim(cnt), "\n\n")) do
-		local k = l:match("^(.-) ")
-		l = l:gsub("^[^\n]+", "", 1)
-		l = luci.util.trim(l)
-		if k then
-			iws[k] = {}
-			for j, c in pairs(luci.util.split(l, "\n          Cell")) do
-				c = c:gsub("^(.-)- ", "", 1)
-				c = luci.util.split(c, "\n", 7)
-				c = table.concat(c, "\n", 1)
-				table.insert(iws[k], _parse_mixed_record(c))
-			end
-		end
-	end
-
-	return iws
-end
-
-
--- Internal functions
-
-function _parse_delimited_table(iter, delimiter)
-	delimiter = delimiter or "%s+"
-
-	local data  = {}
-	local trim  = luci.util.trim
-	local split = luci.util.split
-
-	local keys = split(trim(iter()), delimiter, nil, true)
-	for i, j in pairs(keys) do
-		keys[i] = trim(keys[i])
-	end
-
-	for line in iter do
-		local row = {}
-		line = trim(line)
-		if #line > 0 then
-			for i, j in pairs(split(line, delimiter, nil, true)) do
-				if keys[i] then
-					row[keys[i]] = j
-				end
-			end
-		end
-		table.insert(data, row)
-	end
-
-	return data
-end
-
-function _parse_mixed_record(cnt)
-	local data = {}
-
-	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), "  ")) do
-        	local k, x, v = f:match('([^%s][^:=]+) *([:=]*) *"*([^\n"]*)"*')
-
-            if k then
-				if x == "" then
-					table.insert(data, k)
-				else
-            		data[k] = v
-				end
-            end
-    	end
-	end
-
-    return data
-end
diff --git a/libs/core/luasrc/sys/iptparser.lua b/libs/core/luasrc/sys/iptparser.lua
deleted file mode 100644
index 2e8085a55d..0000000000
--- a/libs/core/luasrc/sys/iptparser.lua
+++ /dev/null
@@ -1,244 +0,0 @@
---[[
-LuCI - Iptables parser and query library
-
-Copyright 2008 Jo-Philipp Wich <freifunk@wwsnet.net>
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-        http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
-$Id$
-
-]]--
-
-module("luci.sys.iptparser", package.seeall)
-require("luci.util")
-
-
-IptParser = luci.util.class()
-
---[[
-IptParser.__init__( ... )
-
-The class constructor, initializes the internal lookup table.
-]]--
-
-function IptParser.__init__( self, ... )
-	self._rules = { }
-	self._chain = nil
-	self:_parse_rules()
-end
-
-
---[[
-IptParser.find( args )
-
-Find all firewall rules that match the given criteria. Expects a table with search criteria as only argument.
-If args is nil or an empty table then all rules will be returned.
-
-The following keys in the args table are recognized:
-
- - table	Match rules that are located within the given table
- - chain	Match rules that are located within the given chain
- - target	Match rules with the given target
- - protocol	Match rules that match the given protocol, rules with protocol "all" are always matched
- - source	Match rules with the given source, rules with source "0.0.0.0/0" are always matched
- - destination	Match rules with the given destination, rules with destination "0.0.0.0/0" are always matched
- - inputif	Match rules with the given input interface, rules with input interface "*" (=all) are always matched
- - outputif	Match rules with the given output interface, rules with output interface "*" (=all) are always matched
- - flags	Match rules that match the given flags, current supported values are "-f" (--fragment) and "!f" (! --fragment)
- - options	Match rules containing all given options
-
-The return value is a list of tables representing the matched rules.
-Each rule table contains the following fields:
-
- - index	The index number of the rule
- - table	The table where the rule is located, can be one of "filter", "nat" or "mangle"
- - chain	The chain where the rule is located, e.g. "INPUT" or "postrouting_wan"
- - target	The rule target, e.g. "REJECT" or "DROP"
- - protocol	The matching protocols, e.g. "all" or "tcp"
- - flags	Special rule options ("--", "-f" or "!f")
- - inputif	Input interface of the rule, e.g. "eth0.0" or "*" for all interfaces
- - outputif	Output interface of the rule, e.g. "eth0.0" or "*" for all interfaces
- - source	The source ip range, e.g. "0.0.0.0/0"
- - destination	The destination ip range, e.g. "0.0.0.0/0"
- - options	A list of specific options of the rule, e.g. { "reject-with", "tcp-reset" }
- - packets	The number of packets matched by the rule
- - bytes	The number of total bytes matched by the rule
-
-Example:
-
-ip = luci.sys.iptparser.IptParser()
-result = ip.find( {
-	target="REJECT",
-	protocol="tcp",
-	options={ "reject-with", "tcp-reset" }
-} )
-
-This will match all rules with target "-j REJECT", protocol "-p tcp" (or "-p all") and the option "--reject-with tcp-reset".
-
-]]--
-
-function IptParser.find( self, args )
-
-	local args = args or { }
-	local rv   = { }
-
-	for i, rule in ipairs(self._rules) do
-		local match = true
-
-		-- match table
-		if not ( not args.table or args.table == rule.table ) then
-			match = false
-		end
-
-		-- match chain
-		if not ( match == true and ( not args.chain or args.chain == rule.chain ) ) then
-			match = false
-		end
-
-		-- match target
-		if not ( match == true and ( not args.target or args.target == rule.target ) ) then
-			match = false
-		end
-
-		-- match protocol
-		if not ( match == true and ( not args.protocol or rule.protocol == "all" or args.protocol == rule.protocol ) ) then
-			match = false
-		end
-		
-		-- match source (XXX: implement ipcalc stuff so that 192.168.1.0/24 matches 0.0.0.0/0 etc.)
-		if not ( match == true and ( not args.source or rule.source == "0.0.0.0/0" or rule.source == args.source ) ) then
-			match = false
-		end
-
-		-- match destination (XXX: implement ipcalc stuff so that 192.168.1.0/24 matches 0.0.0.0/0 etc.)
-		if not ( match == true and ( not args.destination or rule.destination == "0.0.0.0/0" or rule.destination == args.destination ) ) then
-			match = false
-		end
-
-		-- match input interface
-		if not ( match == true and ( not args.inputif or rule.inputif == "*" or args.inputif == rule.inputif ) ) then
-			match = false
-		end
-
-		-- match output interface
-		if not ( match == true and ( not args.outputif or rule.outputif == "*" or args.outputif == rule.outputif ) ) then
-			match = false
-		end
-
-		-- match flags (the "opt" column)
-		if not ( match == true and ( not args.flags or rule.flags == args.flags ) ) then
-			match = false
-		end
-
-		-- match specific options
-		if not ( match == true and ( not args.options or self:_match_options( rule.options, args.options ) ) ) then
-			match = false
-		end
-
-
-		-- insert match
-		if match == true then
-			table.insert( rv, rule )
-		end
-	end
-
-	return rv
-end
-
-
---[[
-IptParser.resync()
-
-Rebuild the internal lookup table, for example when rules have changed through external commands.
-]]--
-
-function IptParser.resync( self )
-	self._rules = { }
-	self._chain = nil
-	self:_parse_rules()
-end
-
-
---[[
-IptParser._parse_rules()
-
-[internal] Parse iptables output from all tables.
-]]--
-
-function IptParser._parse_rules( self )
-
-	for i, tbl in ipairs({ "filter", "nat", "mangle" }) do
-
-		for i, rule in ipairs(luci.util.execl("iptables -t " .. tbl .. " --line-numbers -nxvL")) do
-
-			if rule:find( "Chain " ) == 1 then
-		
-				self._chain = rule:gsub("Chain ([^%s]*) .*", "%1")
-
-			else
-				if rule:find("%d") == 1 then
-
-					local rule_parts   = luci.util.split( rule, "%s+", nil, true )
-					local rule_details = { }
-
-					rule_details["table"]       = tbl
-					rule_details["chain"]       = self._chain
-					rule_details["index"]       = tonumber(rule_parts[1])
-					rule_details["packets"]     = tonumber(rule_parts[2])
-					rule_details["bytes"]       = tonumber(rule_parts[3])
-					rule_details["target"]      = rule_parts[4]
-					rule_details["protocol"]    = rule_parts[5]
-					rule_details["flags"]       = rule_parts[6]
-					rule_details["inputif"]     = rule_parts[7]
-					rule_details["outputif"]    = rule_parts[8]
-					rule_details["source"]      = rule_parts[9]
-					rule_details["destination"] = rule_parts[10]
-					rule_details["options"]     = { }
-
-					for i = 11, #rule_parts - 1 do 
-						rule_details["options"][i-10] = rule_parts[i]
-					end
-
-					table.insert( self._rules, rule_details )
-				end
-			end
-		end
-	end
-
-	self._chain = nil
-end
-
-
---[[
-IptParser._match_options( optlist1, optlist2 )
-
-[internal] Return true if optlist1 contains all elements of optlist2. Return false in all other cases.
-]]--
-
-function IptParser._match_options( self, o1, o2 )
-
-	-- construct a hashtable of first options list to speed up lookups
-	local oh = { }
-	for i, opt in ipairs( o1 ) do oh[opt] = true end
-
-	-- iterate over second options list
-	-- each string in o2 must be also present in o1
-	-- if o2 contains a string which is not found in o1 then return false
-	for i, opt in ipairs( o2 ) do
-		if not oh[opt] then
-			return false
-		end
-	end
-
-	return true
-end