Re-organized file system stuff.

6 files changed, 106 insertions, 16 deletions

diff --git a/Source/Kernel/Core/Log.ns.cpp b/Source/Kernel/Core/Log.ns.cpp
index 1727024..c8ccd80 100644
--- a/Source/Kernel/Core/Log.ns.cpp
+++ b/Source/Kernel/Core/Log.ns.cpp
@@ -1,4 +1,5 @@
 #include "Log.ns.h"
+#include <FileSystems/RamFS/RamFS.class.h>
 #include <VFS/VFS.ns.h>
 
 namespace Log {
@@ -11,6 +12,10 @@ void init(u8int loglevel) {
 	if (VFS::find("/System/Logs") == 0) VFS::createDirectory("/System/Logs");
 
 	logs[KL_PANIC] = new TextFile("/System/Logs/Panic.log", FM_APPEND);
+	if (!logs[KL_PANIC]->valid()) {	//FS maybee not read/write, mount a ramfs
+		RamFS::mount(1024*1024, (DirectoryNode*)VFS::find("/System/Logs"));
+		logs[KL_PANIC] = new TextFile("/System/Logs/Panic.log", FM_APPEND);
+	}
 	if (KL_CRITICAL <= loglevel) logs[KL_CRITICAL] = new TextFile("/System/Logs/Critical.log", FM_APPEND);
 	if (KL_ERROR <= loglevel) logs[KL_ERROR] = new TextFile("/System/Logs/Error.log", FM_APPEND);
 	if (KL_WARNING <= loglevel) logs[KL_WARNING] = new TextFile("/System/Logs/Warning.log", FM_APPEND);
diff --git a/Source/Kernel/Core/kmain.wtf.cpp b/Source/Kernel/Core/kmain.wtf.cpp
index bb77eeb..1d438ed 100644
--- a/Source/Kernel/Core/kmain.wtf.cpp
+++ b/Source/Kernel/Core/kmain.wtf.cpp
@@ -115,6 +115,43 @@ void selectVideoMode(SimpleVT& v) {
 	}
 }
 
+bool mountFS(multiboot_info_t* mbd, String str) {
+	module_t *mods = (module_t*)mbd->mods_addr;
+	Vector<String> fs = str.split(":");
+	DirectoryNode* root;
+	if (fs[0] == "/") {
+		root = NULL;
+	} else {
+		FSNode* n = VFS::find(fs[0]);
+		if (n == NULL) {
+			*kvt << "Mountpoint does not exist : " << fs[0] << "\n";
+			return false;
+		}
+		if (n->type() != NT_DIRECTORY) {
+			*kvt << "Mountpoint is not a directory : " << fs[0] << "\n";
+			return false;
+		}
+		root = (DirectoryNode*)n;
+	}
+	if (fs[1] == "ramfs") {
+		if (fs[2].toInt() >= mbd->mods_count) {
+			*kvt << "Invalid module number for filesystem to mount on " << fs[0] << "\n";
+			return false;
+		}
+		RamFS::mount((u8int*)mods[fs[2].toInt()].mod_start, 1024 * 1024, root);
+	} else {
+		if (fs.size() < 5) fs.push("fat");
+		BlockDevice* d = Part::dev(fs[1], fs[2].toInt());
+		Partition* p = Part::part(d, fs[3].toInt());
+		if (fs[4] == "fat") {
+			FATFS::mount(p, root);
+		} else {
+			PANIC("Unknown filesystem type for root file system.");
+		}
+	}
+	return true;
+}
+
 void kmain(multiboot_info_t* mbd, u32int magic) {
 	DEBUG("Entering kmain.");
 
@@ -167,13 +204,17 @@ void kmain(multiboot_info_t* mbd, u32int magic) {
 	//***************************************	PARSE COMMAND LINE
 	
 	Vector<String> opts = kcmdline.split(" ");
-	String keymap = "fr", init = "/System/Applications/PaperWork.app";
+	String keymap = "builtin", init = "/System/Applications/PaperWork.app";
+	String root = "ramfs:0";
+	Vector<String> mount;
 	bool enableVESA = true;
 	for (u32int i = 0; i < opts.size(); i++) {
 		Vector<String> opt = opts[i].split(":");
 		if (opt[0] == "vesa" && opt[1] != "enabled") enableVESA = false;
 		if (opt[0] == "keymap") keymap = opt[1];
 		if (opt[0] == "init") init = opt[1];
+		if (opt[0] == "root") root = opts[i].substr(5);
+		if (opt[0] == "mount") mount.push(opts[i].substr(6));
 	}
 
 	//*************************************** 	DEVICE SETUP
@@ -183,14 +224,23 @@ void kmain(multiboot_info_t* mbd, u32int magic) {
 	if (enableVESA) Dev::registerDevice(new VESADisplay());
 	FloppyController::detect();
 
-	//***************************************	MOUNT ROOT FILESYSTEM
+	//***************************************	MOUNT FILESYSTEMS
 
-	RamFS::mount((u8int*)mods[0].mod_start, 1024 * 1024, NULL);
+	{	// mount root filesystem
+		if (!mountFS(mbd, String("/:") += root)) PANIC("Cannot mount root filesystem.");
+	}
 	DirectoryNode* cwd;
 	cwd = VFS::getRootNode();
 	Task::currProcess()->setCwd(cwd);
 
-	FATFS::mount(Part::partitions[0], (DirectoryNode*)VFS::createDirectory("/Mount"));
+	// mount other filesystems
+	for (u32int i = 0; i < mount.size(); i++) {
+		mountFS(mbd, mount[i]);
+	}
+
+	//FATFS::mount(Part::partitions[0], (DirectoryNode*)VFS::createDirectory("/Mount"));
+	
+	//***************************************	LOAD SYSTEM STUFF
 
 	if (keymap != "builtin") {
 		if (!Kbd::loadKeymap(keymap)) *kvt << "\nWARNING : Could not load keymap " << keymap << ", using built-in keymap instead.";
diff --git a/Source/Kernel/UserManager/Usr.ns.cpp b/Source/Kernel/UserManager/Usr.ns.cpp
index ecf9bae..66e159e 100644
--- a/Source/Kernel/UserManager/Usr.ns.cpp
+++ b/Source/Kernel/UserManager/Usr.ns.cpp
@@ -26,11 +26,13 @@ void load() {
 	if (VFS::find("/System/Configuration/Groups")) VFS::find("/System/Configuration/Groups")->setPermissions(0600);
 	if (VFS::find("/System/Configuration/Users")) VFS::find("/System/Configuration/Users")->setPermissions(0600);
 	TextFile groups("/System/Configuration/Groups", FM_READ);
-	while (!groups.eof()) {
-		String s = groups.readLine();
-		Vector<String> data = s.split(":");
-		if (data.size() == 2 and !(s[0] == WChar("#"))) {
-			m_groups = m_groups->cons(Group(data[1], data[0].toInt()));
+	if (groups.valid()) {
+		while (!groups.eof()) {
+			String s = groups.readLine();
+			Vector<String> data = s.split(":");
+			if (data.size() == 2 and !(s[0] == WChar("#"))) {
+				m_groups = m_groups->cons(Group(data[1], data[0].toInt()));
+			}
 		}
 	}
 	if (m_groups == 0) {
@@ -39,12 +41,14 @@ void load() {
 	}
 
 	TextFile users("/System/Configuration/Users", FM_READ);
-	while (!users.eof()) {
-		String s = users.readLine();
-		if (s == "" or s[0] == WChar("#")) continue;
-		Vector<String> data = s.split(":");
-		if (data.size() == 6) {
-			m_users = m_users->cons(User(data[1], data[4], data[5], group(data[2].toInt()), data[3], data[0].toInt()));
+	if (users.valid()) {
+		while (!users.eof()) {
+			String s = users.readLine();
+			if (s == "" or s[0] == WChar("#")) continue;
+			Vector<String> data = s.split(":");
+			if (data.size() == 6) {
+				m_users = m_users->cons(User(data[1], data[4], data[5], group(data[2].toInt()), data[3], data[0].toInt()));
+			}
 		}
 	}
 	if (m_users == 0) {
diff --git a/Source/Kernel/VFS/File.class.cpp b/Source/Kernel/VFS/File.class.cpp
index c5ddcd6..84561a5 100644
--- a/Source/Kernel/VFS/File.class.cpp
+++ b/Source/Kernel/VFS/File.class.cpp
@@ -33,7 +33,7 @@ bool File::open(String filename, u8int mode, FSNode* start, bool vrfyperm) {
 	if (node == NULL){
 	   	if (mode == FM_READ) return false;
 		node = VFS::createFile(filename, start, vrfyperm);
-		if (node == 0) return false;
+		if (node == NULL) return false;
 	}
 	if (node->type() != NT_FILE) return false;
 
@@ -137,6 +137,7 @@ bool File::seek(u64int count, u8int mode) {
 }
 
 bool File::eof() {
+	if (!m_valid) return false;
 	return m_position == m_file->getLength();
 }
 
diff --git a/Source/Kernel/VFS/Part.ns.cpp b/Source/Kernel/VFS/Part.ns.cpp
index 6408dbd..7184f90 100644
--- a/Source/Kernel/VFS/Part.ns.cpp
+++ b/Source/Kernel/VFS/Part.ns.cpp
@@ -56,4 +56,31 @@ u32int getDeviceID(BlockDevice* dev) {
 	return (u32int) - 1;
 }
 
+BlockDevice* dev(String _class, u32int idx) {
+	for (u32int i = 0; i < devices.size(); i++) {
+		String devclass = devices[i]->getClass();
+		if (devclass == _class or (devclass.size() > _class.size() and devclass.substr(0, _class.size()) == _class)) {
+			if (idx == 0) {
+				return devices[i];
+			} else {
+				idx--;
+			}
+		}
+	}
+	return NULL;
+}
+
+Partition* part(BlockDevice* dev, u32int idx) {
+	for (u32int i = 0; i < partitions.size(); i++) {
+		if (partitions[i]->getDevice() == dev) {
+			if (idx == 0) {
+				return partitions[i];
+			} else {
+				idx--;
+			}
+		}
+	}
+	return NULL;
+}
+
 }
diff --git a/Source/Kernel/VFS/Part.ns.h b/Source/Kernel/VFS/Part.ns.h
index 40a0fb2..4373a2d 100644
--- a/Source/Kernel/VFS/Part.ns.h
+++ b/Source/Kernel/VFS/Part.ns.h
@@ -13,6 +13,9 @@ namespace Part {
 	void unregisterDevice(BlockDevice* dev);
 
 	u32int getDeviceID(BlockDevice* dev);
+
+	BlockDevice* dev(String _class, u32int idx);
+	Partition* part(BlockDevice* dev, u32int idx);
 }
 
 #endif