Update kernel

KernelShell/Commands/cat.cpp

@@ -0,0 +1,55 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+
+void cmd_cat(const char *args)
+{
+	if (args[0] == '\0')
+		return;
+
+	Node *thisNode = vfs->GetNodeFromPath(args, thisProcess->CurrentWorkingDirectory);
+	if (thisNode == nullptr)
+	{
+		printf("cat: %s: No such file or directory\n", args);
+		return;
+	}
+
+	if (thisNode->Flags != NodeFlags::FILE &&
+		thisNode->Flags != NodeFlags::CHARDEVICE)
+	{
+		printf("cat: %s: Not a file\n", args);
+		return;
+	}
+	std::string path = vfs->GetPathFromNode(thisNode);
+
+	int fd = fopen(path.c_str(), "r");
+	struct stat st;
+	fstat(fd, &st);
+
+	char *buffer = new char[st.st_size + 1];
+	fread(fd, buffer, st.st_size);
+	printf("%s\n", buffer);
+	delete[] buffer;
+	fclose(fd);
+}

KernelShell/Commands/cd.cpp

@@ -0,0 +1,46 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+
+void cmd_cd(const char *args)
+{
+	if (args[0] == '\0')
+		return;
+
+	Node *thisNode = vfs->GetNodeFromPath(args, thisProcess->CurrentWorkingDirectory);
+
+	if (thisNode == nullptr)
+	{
+		printf("cd: %s: No such file or directory\n", args);
+		return;
+	}
+
+	if (thisNode->Flags != NodeFlags::DIRECTORY)
+	{
+		printf("cd: %s: Not a directory\n", args);
+		return;
+	}
+
+	thisProcess->CurrentWorkingDirectory = thisNode;
+}

KernelShell/Commands/echo.cpp

@@ -0,0 +1,25 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include "../../kernel.h"
+
+void cmd_echo(const char *args)
+{
+	printf("%s\n", args);
+}

KernelShell/Commands/exit.cpp

@@ -0,0 +1,33 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+#include <task.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+using namespace Tasking;
+
+void cmd_exit(const char *)
+{
+   KernelShutdownThread(false);
+	// TaskManager->KillThread(thisThread, KILL_SUCCESS);
+	CPU::Halt(true);
+}

KernelShell/Commands/kill.cpp

@@ -0,0 +1,39 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+#include <task.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+using namespace Tasking;
+
+void cmd_kill(const char *args)
+{
+	PID pid = atoi(args);
+	PCB *pcb = TaskManager->GetProcessByID(pid);
+
+	if (pcb == nullptr)
+	{
+		printf("No process with PID %d\n", pid);
+		return;
+	}
+	TaskManager->KillProcess(pcb, KILL_BY_OTHER_PROCESS);
+}

KernelShell/Commands/killall.cpp

@@ -0,0 +1,37 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+#include <task.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+using namespace Tasking;
+
+void cmd_killall(const char *args)
+{
+	foreach (auto Proc in TaskManager->GetProcessList())
+	{
+		if (strcmp(Proc->Name, args) == 0)
+		{
+			TaskManager->KillProcess(Proc, KILL_BY_OTHER_PROCESS);
+		}
+	}
+}

KernelShell/Commands/ls.cpp

@@ -0,0 +1,57 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+
+void cmd_ls(const char *args)
+{
+	if (args[0] == '\0')
+	{
+		Node *rootNode = thisProcess->CurrentWorkingDirectory;
+
+		if (rootNode == nullptr)
+			rootNode = vfs->GetRootNode()->Children[0];
+
+		foreach (auto var in rootNode->Children)
+			printf("%s\n", var->Name);
+	}
+	else
+	{
+		Node *thisNode = vfs->GetNodeFromPath(args, thisProcess->CurrentWorkingDirectory);
+
+		if (thisNode == nullptr)
+		{
+			printf("ls: %s: No such file or directory\n", args);
+			return;
+		}
+
+		if (thisNode->Flags != NodeFlags::DIRECTORY)
+		{
+			printf("%s\n", thisNode->Name);
+			return;
+		}
+
+		foreach (auto var in thisNode->Children)
+			printf("%s\n", var->Name);
+	}
+}

KernelShell/Commands/lsof.cpp

@@ -0,0 +1,35 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include "../../kernel.h"
+
+void cmd_lsof(const char *)
+{
+	printf("PROCESS  FD    NAME\n");
+	foreach (auto Proc in TaskManager->GetProcessList())
+	{
+		if (!Proc)
+			continue;
+
+		std::vector<VirtualFileSystem::FileDescriptorTable::FileDescriptor> fds_array = Proc->FileDescriptors->GetFileDescriptors();
+		foreach (auto fd in fds_array)
+			printf("%s %d: %s\n", Proc->Name, fd.Descriptor,
+				   fd.Handle->AbsolutePath.c_str());
+	}
+}

KernelShell/Commands/lspci.cpp

@@ -0,0 +1,41 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+
+void cmd_lspci(const char *)
+{
+	foreach (auto Device in PCIManager->GetDevices())
+	{
+		printf("%02x:%02x.%d: %s:  %s  %s  %s\n",
+			   //    Device->Bus,
+			   //    Device->Device,
+			   //    Device->Function,
+			   // FIXME
+			   0, 0, 0,
+			   PCI::Descriptors::BridgeDeviceSubclassName(Device->Subclass),
+			   PCI::Descriptors::GetVendorName(Device->VendorID),
+			   PCI::Descriptors::GetDeviceName(Device->VendorID, Device->DeviceID),
+			   PCI::Descriptors::GetSubclassName(Device->Class, Device->Subclass));
+	}
+}

KernelShell/Commands/mem.cpp

@@ -0,0 +1,64 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+#include <task.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+using namespace Tasking;
+
+void cmd_mem(const char *)
+{
+	uint64_t total = KernelAllocator.GetTotalMemory();
+	uint64_t used = KernelAllocator.GetUsedMemory();
+	uint64_t free = KernelAllocator.GetFreeMemory();
+	uint64_t reserved = KernelAllocator.GetReservedMemory();
+
+	int usedPercent = (int)((used * 100) / total);
+	int usedBar = (int)(usedPercent / 2);
+
+	int reservedPercent = (int)((reserved * 100) / total);
+	int reservedBar = (int)(reservedPercent / 2);
+
+	printf("[");
+	for (int i = 0; i < usedBar; i++)
+		printf("=");
+	for (int i = 0; i < 50 - usedBar; i++)
+		printf(" ");
+	printf("] %d%% Used\n", usedPercent);
+
+	printf("[");
+	for (int i = 0; i < reservedBar; i++)
+		printf("=");
+	for (int i = 0; i < 50 - reservedBar; i++)
+		printf(" ");
+	printf("] %d%% Reserved\n", reservedPercent);
+
+	// printf("Total: %d MiB\n", (int)(TO_MiB(total)));
+	// printf("Used: %d MiB\n", (int)(TO_MiB(used)));
+	// printf("Free: %d MiB\n", (int)(TO_MiB(free)));
+	// printf("Reserved: %d MiB\n", (int)(TO_MiB(reserved)));
+
+	printf("TOTAL      USED      FREE      RESERVED\n");
+	printf("%d MiB    %d MiB    %d MiB    %d MiB\n",
+		   (int)(TO_MiB(total)), (int)(TO_MiB(used)),
+		   (int)(TO_MiB(free)), (int)(TO_MiB(reserved)));
+}

KernelShell/Commands/ps.cpp

@@ -0,0 +1,33 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+#include <task.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+using namespace Tasking;
+
+void cmd_ps(const char *)
+{
+	printf("PID  Name\n");
+	foreach (auto p in TaskManager->GetProcessList())
+		printf("%d   %s\n", p->ID, p->Name);
+}

KernelShell/Commands/reboot.cpp

@@ -0,0 +1,32 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+#include <task.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+using namespace Tasking;
+
+void cmd_reboot(const char *)
+{
+	KernelShutdownThread(true);
+	CPU::Halt(true);
+}

KernelShell/Commands/shutdown.cpp

@@ -0,0 +1,32 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+#include <task.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+using namespace Tasking;
+
+void cmd_shutdown(const char *)
+{
+	KernelShutdownThread(false);
+	CPU::Halt(true);
+}

KernelShell/Commands/top.cpp

@@ -0,0 +1,46 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+#include <task.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+using namespace Tasking;
+
+void cmd_top(const char *)
+{
+	printf("\e9400A1PID    \e9CA100Name                \e00A15BState    \eCCCCCCPriority    Memory Usage    CPU Usage\n");
+	foreach (auto Proc in TaskManager->GetProcessList())
+	{
+		printf("\e9400A1%-4d \e9CA100%-20s \e00A15B%s       \eCCCCCC%d           %ld            %ld\n",
+			   Proc->ID, Proc->Name, Proc->Status == Running ? "Running" : "Stopped",
+			   Proc->Info.Priority, Proc->Memory->GetAllocatedMemorySize(),
+			   Proc->Info.UserTime + Proc->Info.KernelTime);
+
+		foreach (auto Thrd in Proc->Threads)
+		{
+			printf(" \eA80011%-4d \e9CA100%-20s \e00A15B%s       \eCCCCCC%d           %ld            %ld\n",
+				   Thrd->ID, Thrd->Name, Thrd->Status == Running ? "Running" : "Stopped",
+				   Thrd->Info.Priority, Thrd->Memory->GetAllocatedMemorySize(),
+				   Thrd->Info.UserTime + Thrd->Info.KernelTime);
+		}
+	}
+}

KernelShell/Commands/uname.cpp

@@ -0,0 +1,65 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+
+void cmd_uname(const char *args)
+{
+	if (args)
+	{
+		if (strcmp(args, "-a") == 0)
+		{
+			printf("Fennix Kernel %s %s %s %s\n",
+				   KERNEL_VERSION, KERNEL_NAME, __DATE__,
+				   KERNEL_ARCH);
+		}
+		else if (strcmp(args, "-s") == 0)
+		{
+			printf("%s\n", KERNEL_NAME);
+		}
+		else if (strcmp(args, "-v") == 0)
+		{
+			printf("%s\n", KERNEL_VERSION);
+		}
+		else if (strcmp(args, "-n") == 0)
+		{
+			printf("unknown\n");
+		}
+		else if (strcmp(args, "-r") == 0)
+		{
+			printf("%s\n", KERNEL_NAME);
+		}
+		else if (strcmp(args, "-m") == 0)
+		{
+			printf("%s\n", KERNEL_ARCH);
+		}
+		else
+		{
+			printf("uname: invalid option: %s\n", args);
+		}
+	}
+	else
+	{
+		printf("Fennix Kernel\n");
+	}
+}

KernelShell/Commands/uptime.cpp

@@ -0,0 +1,51 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+
+void cmd_uptime(const char *)
+{
+	if (TimeManager)
+	{
+		size_t Nanoseconds =
+			TimeManager->GetNanosecondsSinceClassCreation();
+		size_t Seconds = Nanoseconds / 10000000;
+		size_t Minutes = Seconds / 60;
+		size_t Hours = Minutes / 60;
+		size_t Days = Hours / 24;
+
+		debug("Nanoseconds: %ld", Nanoseconds);
+
+		Seconds %= 60;
+		Minutes %= 60;
+		Hours %= 24;
+
+		printf("%ld days, %ld hours, %ld minutes, %ld %s\n",
+			   Days, Hours, Minutes, Seconds,
+			   Seconds == 1 ? "second" : "seconds");
+	}
+	else
+	{
+		printf("Could not get uptime\n");
+	}
+}

KernelShell/Commands/whoami.cpp

@@ -0,0 +1,29 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include "../cmds.hpp"
+
+#include <filesystem.hpp>
+
+#include "../../kernel.h"
+
+using namespace VirtualFileSystem;
+
+void cmd_whoami(const char *)
+{
+	printf("kernel\n");
+}

KernelShell/Shell.cpp

@@ -0,0 +1,422 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include <kshell.hpp>
+
+#include <filesystem.hpp>
+#include <driver.hpp>
+#include <lock.hpp>
+#include <debug.h>
+
+#include "../Modules/PersonalSystem2/keyboard.hpp"
+#include "../kernel.h"
+#include "../Fex.hpp"
+#include "../DAPI.hpp"
+#include "cmds.hpp"
+
+using namespace PS2Keyboard;
+
+NewLock(ShellLock);
+
+const char sc_ascii_low[] = {'?', '?', '1', '2', '3', '4', '5', '6',
+							 '7', '8', '9', '0', '-', '=', '?', '?', 'q', 'w', 'e', 'r', 't', 'y',
+							 'u', 'i', 'o', 'p', '[', ']', '?', '?', 'a', 's', 'd', 'f', 'g',
+							 'h', 'j', 'k', 'l', ';', '\'', '`', '?', '\\', 'z', 'x', 'c', 'v',
+							 'b', 'n', 'm', ',', '.', '/', '?', '?', '?', ' '};
+
+const char sc_ascii_high[] = {'?', '?', '!', '@', '#', '$', '%', '^',
+							  '&', '*', '(', ')', '_', '+', '?', '?', 'Q', 'W', 'E', 'R', 'T', 'Y',
+							  'U', 'I', 'O', 'P', '{', '}', '?', '?', 'A', 'S', 'D', 'F', 'G',
+							  'H', 'J', 'K', 'L', ';', '\"', '~', '?', '|', 'Z', 'X', 'C', 'V',
+							  'B', 'N', 'M', '<', '>', '?', '?', '?', '?', ' '};
+
+static int LowerCase = true;
+
+char GetLetterFromScanCode(uint8_t ScanCode)
+{
+	if (ScanCode & 0x80)
+	{
+		switch (ScanCode)
+		{
+		case KEY_U_LSHIFT:
+			LowerCase = true;
+			return 0;
+		case KEY_U_RSHIFT:
+			LowerCase = true;
+			return 0;
+		default:
+			return 0;
+		}
+	}
+	else
+	{
+		switch (ScanCode)
+		{
+		case KEY_D_RETURN:
+			return '\n';
+		case KEY_D_LSHIFT:
+			LowerCase = false;
+			return 0;
+		case KEY_D_RSHIFT:
+			LowerCase = false;
+			return 0;
+		case KEY_D_BACKSPACE:
+			return ScanCode;
+		default:
+		{
+			if (ScanCode > 0x39)
+				break;
+			if (LowerCase)
+				return sc_ascii_low[ScanCode];
+			else
+				return sc_ascii_high[ScanCode];
+		}
+		}
+	}
+	return 0;
+}
+
+int GetChar()
+{
+	return 0;
+}
+
+struct Command
+{
+	const char *Name;
+	void (*Function)(const char *);
+};
+
+static Command commands[] = {
+	{"lsof", cmd_lsof},
+	{"ls", cmd_ls},
+	{"cd", cmd_cd},
+	{"cat", cmd_cat},
+	{"echo", cmd_echo},
+	{"mkdir", nullptr},
+	{"touch", nullptr},
+	{"rm", nullptr},
+	{"rmdir", nullptr},
+	{"mv", nullptr},
+	{"cp", nullptr},
+	{"clear", nullptr},
+	{"help", nullptr},
+	{"exit", cmd_exit},
+	{"reboot", cmd_reboot},
+	{"shutdown", cmd_shutdown},
+	{"ps", cmd_ps},
+	{"kill", cmd_kill},
+	{"killall", cmd_killall},
+	{"top", cmd_top},
+	{"mem", cmd_mem},
+	{"mount", nullptr},
+	{"umount", nullptr},
+	{"uname", cmd_uname},
+	{"whoami", cmd_whoami},
+	{"passwd", nullptr},
+	{"su", nullptr},
+	{"login", nullptr},
+	{"logout", nullptr},
+	{"uptime", cmd_uptime},
+	{"chown", nullptr},
+	{"chgrp", nullptr},
+	{"chmod", nullptr},
+	{"chroot", nullptr},
+	{"lspci", cmd_lspci}};
+
+void StartKernelShell()
+{
+	SmartLock(ShellLock);
+
+	debug("Starting kernel shell...");
+	printf("Starting kernel shell...\n");
+	thisThread->SetPriority(Tasking::TaskPriority::High);
+	Display->SetBuffer(0);
+
+	Driver::DriverFile KeyboardModule;
+	if (likely(DriverManager->GetDrivers().size() > 0))
+	{
+		foreach (auto Driver in DriverManager->GetDrivers())
+		{
+			if (((FexExtended *)Driver.ExtendedHeaderAddress)->Driver.Type == FexDriverType::FexDriverType_Input &&
+				((FexExtended *)Driver.ExtendedHeaderAddress)->Driver.TypeFlags & FexDriverInputTypes::FexDriverInputTypes_Keyboard)
+			{
+				KeyboardModule = Driver;
+				printf("Using driver \eCA21F6%s\eCCCCCC for keyboard input.\n",
+					   ((FexExtended *)Driver.ExtendedHeaderAddress)->Driver.Name);
+				break;
+			}
+		}
+	}
+
+	Display->SetBuffer(0);
+	std::string Buffer;
+	std::vector<std::string *> History;
+	size_t HistoryIndex = 0;
+	bool CtrlDown = false;
+	bool TabDoublePress = false;
+
+	while (true)
+	{
+		size_t BackspaceCount = 0;
+		Buffer.clear();
+
+		VirtualFileSystem::Node *cwd = thisProcess->CurrentWorkingDirectory;
+		if (!cwd)
+			cwd = vfs->GetNodeFromPath("/");
+
+		printf("\e34C6EB%s@%s:%s$ \eCCCCCC",
+			   "kernel",
+			   "fennix",
+			   cwd->FileSystem->GetPathFromNode(cwd).c_str());
+		Display->SetBuffer(0);
+
+		while (true)
+		{
+			KernelCallback callback{};
+			callback.Reason = PollWaitReason;
+			DriverManager->IOCB(KeyboardModule.DriverUID, &callback);
+			char c = GetLetterFromScanCode(callback.InputCallback.Keyboard.Key);
+
+			switch (callback.InputCallback.Keyboard.Key)
+			{
+			case KEY_D_LCTRL:
+			{
+				CtrlDown = true;
+				continue;
+			}
+			case KEY_U_LCTRL:
+			{
+				CtrlDown = false;
+				continue;
+			}
+			case KEY_D_BACKSPACE:
+			{
+				if (BackspaceCount == 0)
+					continue;
+
+				Display->Print('\b', 0);
+				Buffer.pop_back();
+				BackspaceCount--;
+				Display->SetBuffer(0);
+				continue;
+			}
+			case KEY_D_UP:
+			{
+				if (History.size() == 0 ||
+					HistoryIndex == 0)
+					continue;
+
+				HistoryIndex--;
+
+				for (size_t i = 0; i < Buffer.size(); i++)
+					Display->Print('\b', 0);
+				Display->SetBuffer(0);
+
+				Buffer = History[HistoryIndex]->c_str();
+
+				for (size_t i = 0; i < strlen(Buffer.c_str()); i++)
+					Display->Print(Buffer[i], 0);
+				BackspaceCount = Buffer.size();
+				Display->SetBuffer(0);
+				continue;
+			}
+			case KEY_D_DOWN:
+			{
+				if (History.size() == 0 ||
+					HistoryIndex == History.size())
+					continue;
+
+				if (HistoryIndex == History.size() - 1)
+				{
+					HistoryIndex++;
+					for (size_t i = 0; i < Buffer.size(); i++)
+						Display->Print('\b', 0);
+					BackspaceCount = Buffer.size();
+					Display->SetBuffer(0);
+					continue;
+				}
+
+				for (size_t i = 0; i < Buffer.size(); i++)
+					Display->Print('\b', 0);
+				Display->SetBuffer(0);
+
+				HistoryIndex++;
+				Buffer = History[HistoryIndex]->c_str();
+
+				for (size_t i = 0; i < strlen(Buffer.c_str()); i++)
+					Display->Print(Buffer[i], 0);
+
+				BackspaceCount = Buffer.size();
+				Display->SetBuffer(0);
+				continue;
+			}
+			case KEY_D_TAB:
+			{
+				if (!TabDoublePress)
+				{
+					TabDoublePress = true;
+					continue;
+				}
+				TabDoublePress = false;
+				if (Buffer.size() == 0)
+				{
+					for (size_t i = 0; i < sizeof(commands) / sizeof(commands[0]); i++)
+					{
+						printf("%s ", commands[i].Name);
+						Display->SetBuffer(0);
+					}
+					Display->Print('\n', 0);
+					Display->SetBuffer(0);
+					goto SecLoopEnd;
+				}
+
+				for (size_t i = 0; i < Buffer.size(); i++)
+					Display->Print('\b', 0);
+				Display->SetBuffer(0);
+
+				for (size_t i = 0; i < sizeof(commands) / sizeof(commands[0]); i++)
+				{
+					if (strncmp(Buffer.c_str(), commands[i].Name, Buffer.size()) == 0)
+					{
+						Buffer = commands[i].Name;
+						for (size_t i = 0; i < strlen(Buffer.c_str()); i++)
+							Display->Print(Buffer[i], 0);
+						BackspaceCount = Buffer.size();
+						Display->SetBuffer(0);
+						break;
+					}
+				}
+				continue;
+			}
+			default:
+				break;
+			}
+
+			if (c == 0)
+				continue;
+
+			if (CtrlDown)
+			{
+				switch (std::toupper((char)c))
+				{
+				case 'C':
+				{
+					Display->Print('^', 0);
+					Display->Print('C', 0);
+					Display->Print('\n', 0);
+					fixme("No SIGINT handler yet.");
+					Display->SetBuffer(0);
+					goto SecLoopEnd;
+				}
+				case 'D':
+				{
+					Display->Print('^', 0);
+					Display->Print('D', 0);
+					Display->Print('\n', 0);
+					fixme("No SIGKILL handler yet.");
+					Display->SetBuffer(0);
+					goto SecLoopEnd;
+				}
+				default:
+					continue;
+				}
+			}
+
+			Display->Print(c, 0);
+			if (c == '\n')
+			{
+				if (Buffer.length() > 0)
+				{
+					std::string *hBuff = new std::string(Buffer.c_str());
+					History.push_back(hBuff);
+					HistoryIndex = History.size();
+				}
+				break;
+			}
+
+			Buffer += c;
+			BackspaceCount++;
+			Display->SetBuffer(0);
+		}
+	SecLoopEnd:
+
+		if (Buffer.length() == 0)
+			continue;
+
+		bool Found = false;
+		for (size_t i = 0; i < sizeof(commands) / sizeof(Command); i++)
+		{
+			std::string cmd_extracted;
+			for (size_t i = 0; i < Buffer.length(); i++)
+			{
+				if (Buffer[i] == ' ')
+					break;
+				cmd_extracted += Buffer[i];
+			}
+
+			debug("cmd: %s, array[%d]: %s", cmd_extracted.c_str(), i, commands[i].Name);
+			if (strncmp(commands[i].Name, cmd_extracted.c_str(), cmd_extracted.size()) == 0)
+			{
+				if (strlen(commands[i].Name) != cmd_extracted.size())
+					continue;
+
+				Found = true;
+
+				std::string arg_only;
+				const char *cmd_name = commands[i].Name;
+				for (size_t i = strlen(cmd_name) + 1; i < Buffer.length(); i++)
+					arg_only += Buffer[i];
+
+				if (commands[i].Function)
+					commands[i].Function(arg_only.c_str());
+				else
+				{
+					std::string cmd_only;
+					for (size_t i = 0; i < Buffer.length(); i++)
+					{
+						if (Buffer[i] == ' ')
+							break;
+						cmd_only += Buffer[i];
+					}
+					printf("%s: command not implemented\n",
+						   cmd_only.c_str());
+				}
+				break;
+			}
+		}
+
+		if (!Found)
+		{
+			std::string cmd_only;
+			for (size_t i = 0; i < Buffer.length(); i++)
+			{
+				if (Buffer[i] == ' ')
+					break;
+				cmd_only += Buffer[i];
+			}
+			printf("%s: command not found\n",
+				   cmd_only.c_str());
+		}
+	}
+}
+
+void KShellThread()
+{
+	StartKernelShell();
+	inf_loop;
+}

KernelShell/cmds.hpp

@@ -0,0 +1,41 @@
+/*
+   This file is part of Fennix Kernel.
+
+   Fennix Kernel is free software: you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version.
+
+   Fennix Kernel is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#ifndef __FENNIX_KERNEL_SHELL_CMDS_H__
+#define __FENNIX_KERNEL_SHELL_CMDS_H__
+
+#include <types.h>
+
+void cmd_lsof(const char *args);
+void cmd_echo(const char *args);
+void cmd_ls(const char *args);
+void cmd_cd(const char *args);
+void cmd_cat(const char *args);
+void cmd_ps(const char *args);
+void cmd_uptime(const char *args);
+void cmd_whoami(const char *args);
+void cmd_uname(const char *args);
+void cmd_mem(const char *args);
+void cmd_kill(const char *args);
+void cmd_killall(const char *args);
+void cmd_top(const char *args);
+void cmd_exit(const char *args);
+void cmd_shutdown(const char *args);
+void cmd_reboot(const char *args);
+void cmd_lspci(const char *args);
+
+#endif // !__FENNIX_KERNEL_SHELL_CMDS_H__