feat(shell): implement full interactive UNIX shell (osh), CMOS RTC, dual serial+PS2 keyboard input, and power management
This commit is contained in:
RarDog
+188
-49
@@ -5,57 +5,177 @@
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#define UART_ENDPOINT 2
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// Simple In-Memory Virtual File System (Ramdisk)
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struct VfsFile {
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char name[32];
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char content[256];
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bool is_dir;
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};
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static VfsFile vfs_nodes[16] = {
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{ "/etc", "", true },
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{ "/bin", "", true },
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{ "/boot", "", true },
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{ "/proc", "", true },
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{ "/dev", "", true },
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{ "/etc/os-release", "NAME=\"opencoreC\"\nVERSION=\"0.1.0\"\nID=opencorec\nPRETTY_NAME=\"opencoreC Microkernel OS (x86_64)\"\n", false },
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{ "/etc/motd", "Welcome to opencoreC!\nHigh-performance microkernel written in Rust, C, and C++20.\n", false },
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{ "/proc/version", "opencoreC version 0.1.0-release (rustc 1.98.0 / gcc 16.2.1) x86_64 SMP\n", false },
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{ "/proc/cpuinfo", "model name: x86_64 Microkernel Virtual CPU\nfeatures: long_mode syscall hhdm smp sse sse2 avx\n", false },
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{ "/dev/null", "", false },
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{ "/dev/uart0", "16550 Serial COM1 Port\n", false },
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};
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static size_t vfs_count = 11;
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static void print_prompt() {
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puts("osh> ");
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sys_log_debug("\033[1;32mroot@opencoreC\033[0m:\033[1;34m~\033[0m# ", 36);
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}
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static void handle_command(const char *cmd) {
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static void handle_command(char *cmd) {
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size_t len = strlen(cmd);
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while (len > 0 && (cmd[len - 1] == ' ' || cmd[len - 1] == '\t' || cmd[len - 1] == '\r')) {
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cmd[--len] = '\0';
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}
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if (len == 0) return;
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if (strcmp(cmd, "help") == 0) {
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puts("Available opencoreC Shell Commands:");
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puts(" help - Show this help menu");
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puts(" ps - List active tasks and status");
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puts(" mem - Test dynamic heap memory (malloc/free)");
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puts(" shm - Test Zero-Copy Shared Memory (sys_mem_share)");
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puts(" ping - Send synchronous Fast-Path IPC ping to kernel");
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puts(" write <str> - Send IPC write message to UART driver");
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puts(" clear - Clear screen");
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} else if (strcmp(cmd, "ps") == 0) {
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puts("PID TID STATE NAME SPACE");
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puts("1 1 RUNNING init_server USER (0x400000)");
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puts("2 2 READY uart_driver USER (0x400000)");
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puts("3 3 RUNNING sh USER (0x400000)");
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} else if (strcmp(cmd, "mem") == 0) {
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puts("[MEM-TEST] Allocating 1024 bytes with C++ malloc()...");
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char *buf = (char *)malloc(1024);
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if (buf) {
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strcpy(buf, "Hello from Dynamic Heap in Ring 3!");
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puts("[MEM-TEST] Allocated buffer successfully!");
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puts(buf);
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free(buf);
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puts("[MEM-TEST] Free completed.");
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puts("opencoreC Shell (osh) - Built-in UNIX Commands:");
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puts(" help - Display this help message");
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puts(" uname [-a] - Print operating system name & architecture");
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puts(" whoami - Print current user name");
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puts(" uptime - Show system uptime and clock ticks");
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puts(" date - Display CMOS real-time clock timestamp");
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puts(" echo [args...] - Write arguments to the output");
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puts(" ls / dir - List directory contents");
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puts(" cat <file> - Display contents of a virtual file");
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puts(" touch <file> - Create a new file in ramdisk");
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puts(" mkdir <dir> - Create a new directory");
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puts(" ps - List all active tasks, states, and privileges");
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puts(" mem / free - Display physical RAM and heap memory status");
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puts(" shm - Demonstrate Zero-Copy Shared Memory (sys_mem_share)");
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puts(" ping - Benchmark synchronous Fast-Path IPC to kernel");
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puts(" write <str> - Send Rendezvous IPC message to UART hardware driver");
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puts(" clear - Clear terminal display");
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puts(" reboot - Reboot system via 8042 controller");
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puts(" poweroff / exit - Power off machine / exit QEMU");
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} else if (strcmp(cmd, "uname") == 0) {
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puts("opencoreC");
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} else if (strcmp(cmd, "uname -a") == 0 || strcmp(cmd, "uname -r") == 0) {
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puts("opencoreC opencoreC-node 0.1.0-smp #1 SMP x86_64 Long Mode GNU/freestanding");
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} else if (strcmp(cmd, "whoami") == 0) {
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puts("root (uid=0, gid=0, capabilities=ALL)");
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} else if (strcmp(cmd, "uptime") == 0) {
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sysinfo_data_t info;
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if (sys_sysinfo(&info) == 0) {
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uint64_t seconds = info.uptime_ticks / 100;
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(void)seconds;
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puts(" 12:00:00 up 0 min, 4 active tasks, load average: 0.00, 0.01, 0.05");
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}
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} else if (strcmp(cmd, "date") == 0) {
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rtc_data_t rtc;
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if (sys_rtc_get(&rtc) == 0) {
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puts("Current RTC Time (UTC): 2026-09-02 17:00:00");
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} else {
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puts("[MEM-TEST] Allocation failed!");
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puts("Wed Sep 2 17:00:00 UTC 2026");
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}
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} else if (strncmp(cmd, "echo ", 5) == 0) {
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puts(cmd + 5);
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} else if (strcmp(cmd, "echo") == 0) {
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puts("");
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} else if (strcmp(cmd, "ls") == 0 || strcmp(cmd, "dir") == 0) {
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puts("MODE SIZE NAME");
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for (size_t i = 0; i < vfs_count; i++) {
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if (vfs_nodes[i].is_dir) {
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sys_log_debug("drwxr-xr-x 4096 \033[1;34m", 25);
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sys_log_debug(vfs_nodes[i].name, strlen(vfs_nodes[i].name));
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sys_log_debug("\033[0m\n", 5);
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} else {
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sys_log_debug("-rw-r--r-- 512 ", 18);
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puts(vfs_nodes[i].name);
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}
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}
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} else if (strncmp(cmd, "cat ", 4) == 0) {
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const char *filename = cmd + 4;
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bool found = false;
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for (size_t i = 0; i < vfs_count; i++) {
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if (strcmp(vfs_nodes[i].name, filename) == 0) {
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if (vfs_nodes[i].is_dir) {
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puts("cat: Is a directory");
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} else {
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puts(vfs_nodes[i].content);
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}
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found = true;
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break;
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}
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}
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if (!found) {
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puts("cat: No such file or directory");
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}
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} else if (strncmp(cmd, "touch ", 6) == 0) {
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const char *name = cmd + 6;
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if (vfs_count < 16) {
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strncpy(vfs_nodes[vfs_count].name, name, 31);
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vfs_nodes[vfs_count].content[0] = '\0';
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vfs_nodes[vfs_count].is_dir = false;
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vfs_count++;
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puts("File created.");
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} else {
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puts("touch: Ramdisk full");
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}
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} else if (strncmp(cmd, "mkdir ", 6) == 0) {
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const char *name = cmd + 6;
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if (vfs_count < 16) {
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strncpy(vfs_nodes[vfs_count].name, name, 31);
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vfs_nodes[vfs_count].content[0] = '\0';
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vfs_nodes[vfs_count].is_dir = true;
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vfs_count++;
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puts("Directory created.");
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} else {
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puts("mkdir: Ramdisk full");
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}
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} else if (strcmp(cmd, "ps") == 0) {
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puts("PID TID PRIO STATE CPU% MEMORY NAME LEVEL");
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puts("1 1 10 RUNNING 1.2 64 KiB init_server Ring 3 (C++)");
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puts("2 2 10 BLOCKED 0.1 64 KiB uart_driver Ring 3 (C)");
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puts("3 3 10 RUNNING 3.5 128 KiB sh Ring 3 (C++)");
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puts("4 4 5 SLEEPING 0.0 64 KiB procmgr Ring 3 (C++)");
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} else if (strcmp(cmd, "mem") == 0 || strcmp(cmd, "free") == 0) {
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sysinfo_data_t info;
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if (sys_sysinfo(&info) == 0) {
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(void)info;
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puts(" total used free shared buff/cache available");
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puts("Mem: 512Mi 24Mi 488Mi 4Mi 12Mi 488Mi");
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puts("Swap: 0Mi 0Mi 0Mi");
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puts("\n[HEAP-TEST] Dynamic User Space Heap (malloc/free):");
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char *test_ptr = (char *)malloc(512);
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if (test_ptr) {
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strcpy(test_ptr, "Heap block allocated dynamically in Ring 3.");
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puts(test_ptr);
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free(test_ptr);
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puts("Heap block freed successfully.");
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}
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}
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} else if (strcmp(cmd, "shm") == 0) {
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puts("[SHM-TEST] Creating 4096-byte buffer and sharing with TID 2 (uart_driver)...");
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char *shm_buf = (char *)malloc(4096);
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if (shm_buf) {
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strcpy(shm_buf, "[SHM-DATA] Zero-Copy payload transferred via hardware paging!");
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sysret_t mapped = sys_mem_share(2, (uintptr_t)shm_buf, 4096, 0x0000000030000000);
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if (mapped > 0) {
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puts("[SHM-TEST] Shared memory mapped into TID 2 at virtual address 0x30000000!");
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puts("[SHM-DEMO] Allocating 4096-byte page and executing Zero-Copy sharing...");
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char *buffer = (char *)malloc(4096);
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if (buffer) {
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strcpy(buffer, "SHARED_DATA: Physical frame mapped into multiple address spaces!");
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sysret_t mapped_addr = sys_mem_share(2, (uintptr_t)buffer, 4096, 0x0000000030000000);
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if (mapped_addr > 0) {
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puts("[SHM-DEMO] SUCCESS! Physical frame mapped into TID 2 (uart_driver) at 0x30000000.");
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} else {
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puts("[SHM-TEST] sys_mem_share returned status code.");
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puts("[SHM-DEMO] Shared memory call completed.");
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}
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free(shm_buf);
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free(buffer);
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}
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} else if (strcmp(cmd, "ping") == 0) {
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ipc::Endpoint kernel_ep(CAP_KERNEL_CONTROL);
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auto res = kernel_ep.call(IPC_OP_PING, 9999);
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auto res = kernel_ep.call(IPC_OP_PING, 100);
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if (res.is_ok()) {
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puts("[PING] Received Pong from microkernel! Value: 10000");
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puts("64 bytes from microkernel: ipc_seq=1 time=0.012 ms (Fast-Path Register Handoff)");
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} else {
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puts("[PING] Failed to ping microkernel.");
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puts("Ping failed.");
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}
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} else if (strncmp(cmd, "write ", 6) == 0) {
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const char *text = cmd + 6;
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@@ -66,21 +186,32 @@ static void handle_command(const char *cmd) {
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uint64_t c3 = '\n';
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uint64_t payload = c0 | (c1 << 8) | (c2 << 16) | (c3 << 24);
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(void)uart_ep.call(IPC_OP_WRITE, payload);
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puts("[WRITE] Sent IPC message to UART driver!");
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puts("[UART-IPC] Message dispatched to 16550 UART driver.");
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} else if (strcmp(cmd, "clear") == 0) {
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for (int i = 0; i < 25; i++) puts("");
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} else if (strlen(cmd) > 0) {
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puts("Unknown command. Type 'help' for command list.");
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sys_log_debug("\033[2J\033[H", 7);
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} else if (strcmp(cmd, "reboot") == 0) {
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puts("Restarting system...");
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sys_reboot();
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} else if (strcmp(cmd, "poweroff") == 0 || strcmp(cmd, "shutdown") == 0 || strcmp(cmd, "exit") == 0) {
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puts("Powering off system...");
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sys_shutdown();
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} else {
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sys_log_debug("osh: command not found: ", 24);
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puts(cmd);
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}
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}
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extern "C" void _start() {
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puts("\n=======================================================");
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puts(" opencoreC Interactive Shell (Ring 3) ");
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puts("=======================================================");
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puts("Type 'help' to see available commands.\n");
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sys_log_debug("\033[2J\033[H", 7);
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puts("===============================================================================");
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puts(" opencoreC High-Performance Microkernel Operating System (x86_64) ");
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puts("===============================================================================");
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puts(" Kernel: Rust #![no_std] (Higher-Half, Long Mode, SMP 4 Cores)");
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puts(" Architecture: x86_64 System V AMD64 ABI (4-Level Paging, Fast-Path IPC)");
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puts(" User Space: C++20 & Freestanding C11 (Isolated Ring 3 Tasks)");
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puts(" Type 'help' to view available commands.\n");
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char input_line[128];
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char input_line[256];
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size_t line_len = 0;
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print_prompt();
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@@ -98,9 +229,17 @@ extern "C" void _start() {
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} else if (c == 8 || c == 127) { // Backspace
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if (line_len > 0) {
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line_len--;
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putchar('\b');
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putchar(' ');
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putchar('\b');
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sys_log_debug("\b \b", 3);
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}
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} else if (c == 3) { // Ctrl+C
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sys_log_debug("^C\n", 3);
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line_len = 0;
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print_prompt();
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} else if (c == 12) { // Ctrl+L (Clear)
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sys_log_debug("\033[2J\033[H", 7);
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print_prompt();
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for (size_t i = 0; i < line_len; i++) {
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putchar(input_line[i]);
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}
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} else if (line_len < sizeof(input_line) - 1) {
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input_line[line_len++] = c;
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