304 lines
8.7 KiB
C
304 lines
8.7 KiB
C
//----------------------------------------------------------------------------//
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// OS on Kaleid //
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// //
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// Desc: Kernel shell //
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// //
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// //
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// Copyright © 2018-2020 The OS/K Team //
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// //
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// This file is part of OS/K. //
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// //
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// OS/K is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 3 of the License, or //
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// any later version. //
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// //
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// OS/K is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY//without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
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//----------------------------------------------------------------------------//
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#include <vers.h>
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#include <mm/paging.h>
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#include <mm/map.h>
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#include <drivers/ata.h>
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#include <io/vga.h>
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#include <io/spkr.h>
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#include <ke/time.h>
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#include <libbuf.h>
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#include <sh/shell.h>
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#include <po/shtdwn.h>
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error_t CmdTest(int argc, char **argv, char *cmdline);
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error_t CmdMemUsage(int argc, char **argv, char *cmdline);
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error_t CmdBeep(int argc, char **argv, char *cmdline)
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{
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IoDoBeep();
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return EOK;
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}
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error_t CmdClear(int argc, char **argv, char *cmdline)
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{
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BLockBuf(BStdOut);
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BStdOut->wp = BStdOut->rp = BStdOut->buf;
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BStdOut->lastLF = 0;
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BUnlockBuf(BStdOut);
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return EOK;
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}
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error_t CmdColor(int argc, char **argv, char *cmdline)
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{
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int col = 0;
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char *p;
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if (argc > 2) {
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KernLog("Usage: 'color [#|list]'\n");
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return EINVAL;
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}
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if (argc == 1) {
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KernLog("Current color: %s (%d)\n", RtlColorNames[shcol], shcol);
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}
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else if (!strcmp(argv[1], "list")) {
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KernLog("Available colors:\n");
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for (col = 0; col <= VGA_COLOR_WHITE; col++) {
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KernLog("%d - %s\n", col, RtlColorNames[col]);
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}
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}
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else {
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p = argv[1];
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while (isdigit(*p) && col < VGA_COLOR_WHITE) {
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col = 10 * col + *p++ - '0';
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}
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if (*p || col < VGA_COLOR_BLACK || col > VGA_COLOR_WHITE) {
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KernLog("Invalid color: %d\n", col);
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KernLog("Usage: 'color [#|list]'\n");
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return EINVAL;
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}
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else {
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shcol = col;
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}
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}
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return EOK;
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}
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error_t CmdDate(int argc, char **argv, char *cmdline)
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{
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KernLog("%.10s\n", KeFormatCurTime());
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return EOK;
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}
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error_t CmdDmesg(int argc, char **argv, char *cmdline)
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{
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char *ptr;
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size_t N = 0;
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if (argc == 1) N = 999;
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else if (argc == 2) N = 1 + atoi(argv[1]);
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else {
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KernLog("dmesg: no more than one argument\n");
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return EINVAL;
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}
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DebugLog("dmesg requested from kernel shell (N=%d)\n", N);
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if (N == 0) return EOK;
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BLockBuf(BStdDbg);
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ptr = (char *)lmax((ulong)BStdDbg->buf,
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(ulong)(BStdDbg->wp - BStdDbg->lastLF - (BStdDbg->lineLen * N)));
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KernLog(ptr);
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BUnlockBuf(BStdDbg);
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return EOK;
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}
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error_t CmdDumpMem(int argc, char **argv, char *cmdline)
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{
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if (argc < 2 || argc > 3) {
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KernLog("Invalid argument : argc = %d\n", argc);
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return EINVAL;
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}
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char sector[8192] = {0};
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int maximum = 0;
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int x = 0;
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int step = 8;
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char *address = (char*)strtoul(argv[1], NULL, 16);
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char *end = (char*)(strtoul(argv[1], NULL, 16) + step);
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if (argc >= 3) {
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end = (char*)(strtoul(argv[2], NULL, 16) + step);
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}
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maximum = (int)(end - address);
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if (address > end) {
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KernLog("Invalid argument\n");
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return EINVAL;
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}
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//KernLog("Address begin: %p\tAddress end: %p\n", address, end);
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for (int i = 0; i < 8192 && i < maximum; i++) {
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sector[i] = *(address+i);
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}
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for (x = 0; x < maximum; x += step) {
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KernLog("%C", shcol);
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KernLog("[%p] ", (ulong)address + (ulong)x);
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for (int i = 0; i < step; i++) {
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KernLog("%02x ", (uchar)sector[i+x]);
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}
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KernLog(" %C ", VGA_COLOR_LIGHT_BLUE);
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for (int i = 0; i < step; i++) {
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if (isprint(sector[i+x]))
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KernLog("%c",
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sector[i+x]
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);
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else
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KernLog("%c", 0);
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}
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KernLog("\n");
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}
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return EOK;
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}
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error_t CmdHelp(int argc, char **argv, char *cmdline)
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{
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uint i, count = 0;
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Command_t *cmd;
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KernLog("List of all shell built-ins:\n");
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for (cmd = shcmdtable; cmd->name != NULL; cmd++, count++) {
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KernLog("\t%s", cmd->name);
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for (i = strlen(cmd->name)/4; i<3; i++) {
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KernLog("\t");
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}
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KernLog("%C%s%C\n", VGA_COLOR_DARK_GREY, cmd->help, shcol);
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}
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KernLog("End of list; %u commands total\n", count);
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return EOK;
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}
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error_t CmdMemMap(int argc, char **argv, char *cmdline)
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{
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MmPrintMemoryMap();
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return EOK;
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}
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error_t CmdPrompt(int argc, char **argv, char *cmdline)
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{
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if (cmdline[6] == 0) {
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shprompt[0] = 0;
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shpromptlen = 0;
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}
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else {
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strnzcpy(shprompt, &cmdline[7], SHPROMPT_MAXLEN);
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shpromptlen = strlen(shprompt);
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}
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return EOK;
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}
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error_t CmdQuit(int argc, char **argv, char *cmdline)
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{
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PoShutdown();
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return EOK;
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}
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error_t CmdSleep(int argc, char **argv, char *cmdline)
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{
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int delay = atoi(argv[1]);
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KeSleep(delay);
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return EOK;
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}
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error_t CmdStarWars(int argc, char **argv, char *cmdline)
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{
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IoDoStarWars();
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return EOK;
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}
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error_t CmdTime(int argc, char **argv, char *cmdline)
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{
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KernLog("%s\n", &KeFormatCurTime()[13]);
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return EOK;
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}
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error_t CmdVersion(int argc, char **argv, char *cmdline)
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{
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int CH = VGA_COLOR_LIGHT_BLUE;
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int CN = shcol;
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KernLog("OS/K version %C%s (x86-64)%C\n",
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CH,
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_KALEID_VERSION,
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CN
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);
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KernLog("Copyright (C) 2018-2020 The OS/K Team\n\n");
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KernLog("This program is free software, released under the\n");
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KernLog("terms of the GNU GPL version 3 or later as published\n");
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KernLog("by the Free Software Foundation.\n");
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KernLog("You are free to change and redistribute it.\n");
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KernLog("There is NO WARRANTY, to the extent permitted by law.\n");
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KernLog("See <http://gnu.org/licenses/gpl.html>\n\n");
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return EOK;
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}
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//----------------------------------------------------------------------------//
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Command_t shcmdtable[] =
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{
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{ "beep", CmdBeep, "Make a beep" },
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{ "cls", CmdClear, "Clears standard output" },
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{ "color", CmdColor, "Change shell text color" },
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{ "date", CmdDate, "Print date" },
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{ "dmesg", CmdDmesg, "Print N lines of debug log" },
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{ "exit", CmdQuit, "Initiate shutdown" },
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{ "help", CmdHelp, "Show this message" },
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{ "march", CmdStarWars, "Play the Imperial March" },
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{ "memdump", CmdDumpMem, "Dump memory starting from addr to end"},
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{ "mmap", CmdMemMap, "Show memory map" },
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{ "musage", CmdMemUsage, "Show memory statistics" },
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{ "prompt", CmdPrompt, "Change shell prompt" },
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{ "quit", CmdQuit, "Alias for 'exit'" },
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{ "sleep", CmdSleep, "Sleep N ms" },
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{ "time", CmdTime, "Print time" },
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{ "test", CmdTest, "Launch a test" },
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{ "ver", CmdVersion, "Version and legal infos" },
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{ NULL, NULL, NULL },
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};
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