forked from Hyperion/HyperionOS
super dupper system update (it runs)
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172
Test/Hyperion-kernel-v1.0.0/lib/modules/Hyperion/12_devfs.kmod
Normal file
172
Test/Hyperion-kernel-v1.0.0/lib/modules/Hyperion/12_devfs.kmod
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local kernel = ...
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local proxy = {}
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local data = {}
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proxy.address = "devfs0000"
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proxy.isReadOnly = false
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proxy.spaceUsed = function() return 0 end
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proxy.spaceTotal = function() return 0 end
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proxy.makeDirectory = function() error("Permission denied") end
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proxy.remove = function() error("Permission denied") end
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proxy.setLabel = function() error("Permission denied") end
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proxy.getLabel = function() return "devfs" end
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proxy.attributes = function(path) return {
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type = proxy.type(path),
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isReadOnly = false,
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size = 0,
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lastModified = 0,
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created = 0,
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Permissions = "666",
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owner = "root",
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group = "root"
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} end
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local function getNode(path)
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local parts = string.split(path, "/")
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if parts[1] == "" then
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table.remove(parts, 1)
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end
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local node = data
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for _, part in ipairs(parts) do
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if node[part] then
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node = node[part]
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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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return node
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end
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proxy.type = function(path)
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local node = getNode(path)
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if node then
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return node.type
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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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proxy.list = function(path)
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local node = getNode(path)
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if node and node.type == "directory" then
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local content = table.keys(node)
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table.remove(content, table.indexOf(content, "type"))
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return content
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else
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error("Not a directory")
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end
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end
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proxy.open = function(path, mode)
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local node = getNode(path)
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if node and (node.type == "file" or node.type == "character device") then
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if mode == "r" then
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return {
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read = node.read,
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close = function() end
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}
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elseif mode == "w" then
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return {
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write = node.write,
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close = function() end
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}
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else
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error("Invalid mode")
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end
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else
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error("Not a file"..type(node))
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end
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end
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local function newStringFile(content)
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return {
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type = "file",
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read = function() return content end,
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write = function(newContent) content = newContent end
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}
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end
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local function newDirectory()
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return {
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type = "directory"
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}
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end
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data["random"] = {
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type = "character device",
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read = function(amount)
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local result = ""
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for _ = 1, amount do
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result = result .. string.char(math.random(0, 255))
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end
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return result
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end,
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write = function() error("Permission denied") end
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}
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data["null"] = {
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type = "character device",
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read = function() return "" end,
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write = function() end
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}
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data["zero"] = {
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type = "character device",
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read = function(amount)
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return string.rep("\0", amount)
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end,
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write = function() error("Permission denied") end
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}
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data["rtc"] = {
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type = "character device",
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read = function() return kernel.computer:time() end,
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write = function() error("Permission denied") end
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}
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data["rtc0"] = {
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type = "character device",
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read = function() return kernel.computer:time() end,
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write = function() error("Permission denied") end
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}
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data["eeprom"] = {
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type = "character device",
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read = function() return kernel.computer:getEEPROM() end,
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write = function(data)
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if kernel.uid ~= 0 then
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error("Permission denied")
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end
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kernel.computer:setEEPROM(data)
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end
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}
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local keyboard = kernel.newFifo()
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local mouse = kernel.newFifo()
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data["input"] = newDirectory()
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data["input"]["keyboard"] = {
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type = "pipe",
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read = function(amount)
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return keyboard.pop()
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end,
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write = function() error("Permission denied") end
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}
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data["input"]["mouse"] = {
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type = "pipe",
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read = function(amount)
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return mouse.pop()
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end,
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write = function() error("Permission denied") end
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}
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data["pts"] = newDirectory()
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kernel.devfs = {}
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kernel.devfs.keyboard = keyboard
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kernel.devfs.mouse = mouse
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kernel.devfs.proxy = proxy
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kernel.devfs.data = data
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kernel.vfs.virtdisk(proxy)
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