X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=libs%2Fsys%2Fluasrc%2Fsys.lua;h=c978fb70f5ed37f01051bf7a6437d8ace3bef3ce;hb=6bfe0624b69defeba37cadffc6afa5ccb9577add;hp=e92adc1ad6ab8972f990baa4aff02eb160293535;hpb=cd8e12d72a038bc3d6f4a62225c83f12815e28cd;p=project%2Fluci.git

diff --git a/libs/sys/luasrc/sys.lua b/libs/sys/luasrc/sys.lua
index e92adc1ad6..c978fb70f5 100644
--- a/libs/sys/luasrc/sys.lua
+++ b/libs/sys/luasrc/sys.lua
@@ -27,7 +27,7 @@ limitations under the License.
 
 local io    = require "io"
 local os    = require "os"
-local posix = require "posix"
+local nixio = require "nixio"
 local table = require "table"
 
 local luci  = {}
@@ -35,7 +35,8 @@ luci.util   = require "luci.util"
 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.
@@ -127,12 +128,18 @@ end
 -- @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.
@@ -154,11 +161,9 @@ end
 -- @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.
@@ -186,7 +191,7 @@ function sysinfo()
 	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]+)")
@@ -236,18 +241,6 @@ function 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.
--- @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
@@ -303,12 +296,14 @@ end
 --			{ "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
 
@@ -319,14 +314,15 @@ end
 --			{ "source", "dest", "nexthop", "metric", "refcount", "usecount",
 --			  "flags", "device" }
 function net.defaultroute6()
-	local route = nil
+	local route   = nil
 	local routes6 = net.routes6()
-	if not routes6 then
-		return nil
-	end
-	for _, r in pairs(routes6) do
-		if r.dest:prefix() == 0 and (not route or route.metric > r.metric) then
-			route = r
+	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
@@ -377,7 +373,7 @@ end
 --			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
@@ -395,7 +391,7 @@ function net.routes()
 				dst_ip, dst_mask:prefix(dst_mask), luci.ip.FAMILY_INET4
 			)
 
-			routes[#routes+1] = {
+			local rt = {
 				dest     = dst_ip,
 				gateway  = gateway,
 				metric   = tonumber(metric),
@@ -407,6 +403,12 @@ function net.routes()
 				flags    = tonumber(flags, 16),
 				device   = dev
 			}
+
+			if callback then
+				callback(rt)
+			else
+				routes[#routes+1] = rt
+			end
 		end
 	end
 
@@ -419,46 +421,44 @@ end
 --			{ "source", "dest", "nexthop", "metric", "refcount", "usecount",
 --			  "flags", "device" }
 function net.routes6()
-	local routes = { }
-
-	if not luci.fs.access("/proc/net/ipv6_route", "r") then
-		return nil
-	end
+	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.
@@ -478,7 +478,10 @@ process = {}
 -- @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
@@ -521,23 +524,21 @@ function process.list()
 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.
@@ -547,7 +548,7 @@ end
 -- @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.
@@ -561,44 +562,20 @@ user = {}
 -- @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.
@@ -628,7 +605,7 @@ 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 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
@@ -675,6 +652,37 @@ function wifi.iwscan(iface)
 	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