1969 lines
71 KiB
C
1969 lines
71 KiB
C
/* Deshab Shell — 命令行交互界面
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* 接收 PS/2 键盘输入，执行内置命令。
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* 使用 Deshab "Sealed Arc" 视觉风格系统。
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*/
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#include "../UTSM/include/utsm/dsk.h"
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#include "../UTSM/include/utsm/pe.h"
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#include "../UTSM/include/utsm/linux_compat.h"
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typedef unsigned char u8;
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typedef unsigned short u16;
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typedef unsigned int u32;
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typedef unsigned long long u64;
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typedef long long i64;
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#define COM1 0x3F8
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static __inline__ void outb(u16 port, u8 value) { __asm__ volatile("outb %0,%1"::"a"(value),"Nd"(port)); }
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static __inline__ u8 inb(u16 port) { u8 v; __asm__ volatile("inb %1,%0":"=a"(v):"Nd"(port)); return v; }
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static __inline__ void outl(u16 port, u32 value) { __asm__ volatile("outl %0,%1"::"a"(value),"Nd"(port)); }
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static __inline__ u32 inl(u16 port) { u32 v; __asm__ volatile("inl %1,%0":"=a"(v):"Nd"(port)); return v; }
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/* ---- TSC-based timing (实机要求: 用 CPU 频率计算, 不用循环) ---- */
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static u64 g_tsc_per_ms = 0;
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static __inline__ u64 rdtsc_shell(void) {
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u32 lo, hi;
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__asm__ volatile("rdtsc" : "=a"(lo), "=d"(hi));
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return ((u64)hi << 32) | lo;
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}
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/* 通过 PIT ch0 (16-bit mode 0) 校准 TSC ~10ms 计数 */
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static void tsc_calibrate_shell(void) {
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outb(0x43, 0x30); /* ch0, lo+hi, mode 0, binary */
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outb(0x40, 0x7c); /* 11932 low = ~10ms */
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outb(0x40, 0x2e); /* 11932 high */
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u64 tsc_start = rdtsc_shell();
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u16 prev = 0; u64 loops = 0;
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for (;;) {
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outb(0x43, 0x00);
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u16 cur = (u16)inb(0x40) | ((u16)inb(0x40) << 8);
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if (cur > prev && loops > 10) break;
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prev = cur; loops++;
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}
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u64 tsc_end = rdtsc_shell();
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g_tsc_per_ms = (tsc_end - tsc_start) / 10;
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}
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/* 串口发送等待: TSC 100us 超时, 校准失败时回退到循环 */
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static void serial_wait_tx_shell(void) {
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if (g_tsc_per_ms == 0) {
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tsc_calibrate_shell();
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}
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if (g_tsc_per_ms == 0) {
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for (u32 i = 0; i < 100000; i++) {
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if (inb(COM1 + 5) & 0x20) break;
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}
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return;
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}
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u64 deadline = rdtsc_shell() + g_tsc_per_ms / 10; /* 100us 超时 */
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while (rdtsc_shell() < deadline) {
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if (inb(COM1 + 5) & 0x20) break;
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__asm__ volatile("pause");
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}
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}
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static void sputc(char c) {
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serial_wait_tx_shell();
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outb(COM1, (unsigned char)c);
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}
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static void swrite(const char *s) { while(*s) { if(*s=='\n')sputc('\r'); sputc(*s++); } }
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static void logl(const char *s) { swrite(s); swrite("\n"); }
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/* ASCII 字体 — 必须在 deshab_ui.h 之前包含，因为 du_draw_char 引用 g_ascii */
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#include "../firstInit/ascii_bitmaps.c"
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#include "../UTSM/include/utsm/deshab_ui.h"
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/* ============================================================
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* Block 设备 + FAT32 读写（移植自 DSK，支持 cp/mv/cat/ls）
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* ============================================================ */
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typedef int (*shell_block_read_fn)(u32 index, u64 lba, u32 count, void *buf);
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typedef int (*shell_block_write_fn)(u32 index, u64 lba, u32 count, const void *buf);
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static shell_block_read_fn g_block_read;
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static shell_block_write_fn g_block_write;
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/* FAT32 BPB / 目录项结构（与 DSK 一致，packed） */
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typedef struct __attribute__((packed)) {
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u8 jmp[3]; char oem[8]; u16 bps; u8 spc; u16 rsvd; u8 fc; u16 root_ent;
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u16 ts16; u8 media; u16 spf16; u16 spt; u16 heads; u32 hidden; u32 ts32;
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u32 spf; u16 flags; u16 ver; u32 root_clus; u16 fsi; u16 bkboot;
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u8 res[12]; u8 drv; u8 ntfl; u8 sig; u32 ser; char lbl[11]; char typ[8];
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u8 code[420]; u16 boot_sig;
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} shell_fat32_bpb;
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typedef struct __attribute__((packed)) {
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char name[11]; u8 attr; u8 ntr; u8 ctenth;
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u16 ctime; u16 cdate; u16 adate; u16 chigh;
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u16 wtime; u16 wdate; u16 clow; u32 fsize;
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} shell_fat32_de;
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static u32 sh_r32(const u8 *p) { return (u32)p[0]|((u32)p[1]<<8)|((u32)p[2]<<16)|((u32)p[3]<<24); }
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static u16 sh_r16(const u8 *p) { return (u16)p[0]|((u16)p[1]<<8); }
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static int sh_neq11(const char *a, const char *b) { for(int i=0;i<11;i++) if(a[i]!=b[i]) return 0; return 1; }
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/* 批量读写缓冲区（与 DSK 对齐：256 扇区覆盖 BPB+FAT+根目录+小文件） */
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static u8 g_disk[131072]; /* 256 扇区 BPB+FAT+根目录缓存 */
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static u8 g_cluster[4096]; /* 单簇缓冲 */
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static u8 g_fdata[262144]; /* 文件数据缓冲（最大 256KB） */
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static int g_disk_loaded = 0; /* g_disk 是否已加载 BPB+FAT */
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static int sh_read_sectors(u32 lba, u32 count, u8 *out) { return g_block_read ? g_block_read(0,lba,count,out) : -1; }
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static int sh_write_sectors(u32 lba, u32 count, const u8 *buf) { return g_block_write ? g_block_write(0,lba,count,buf) : -1; }
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/* 确保 g_disk 已加载 BPB+FAT+根目录（256 扇区） */
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static int sh_disk_load(void) {
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if (g_disk_loaded) return 0;
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if (sh_read_sectors(0, 256, g_disk) != 0) return -1;
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const shell_fat32_bpb *bpb = (const shell_fat32_bpb *)g_disk;
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if (bpb->boot_sig != 0xAA55 || bpb->bps != 512) return -2;
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if (bpb->spf == 0 || bpb->root_clus < 2) return -3;
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g_disk_loaded = 1;
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return 0;
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}
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/* 把 "file.txt" / "NAME" 转为 11 字符 8.3 名（大写，空格填充）
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* 返回 0 成功，-1 失败（过长或非法字符） */
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static int name_to_83(const char *in, char out[11]) {
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for (int i = 0; i < 11; i++) out[i] = ' ';
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int inlen = 0;
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while (in[inlen] && inlen < 13) inlen++;
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if (inlen == 0 || inlen > 12) return -1;
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int dot = -1;
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for (int i = 0; i < inlen; i++) if (in[i] == '.') dot = i;
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int base_end = (dot >= 0) ? dot : inlen;
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if (base_end == 0 || base_end > 8) return -1;
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for (int j = 0; j < base_end; j++) {
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char c = in[j];
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if (c >= 'a' && c <= 'z') c -= 32;
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if (c == '.' || c == ' ' || c == '/' || c == '\\') return -1;
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out[j] = c;
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}
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if (dot >= 0) {
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int extlen = inlen - dot - 1;
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if (extlen > 3) return -1;
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for (int j = 0; j < extlen; j++) {
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char c = in[dot + 1 + j];
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if (c >= 'a' && c <= 'z') c -= 32;
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if (c == '.' || c == ' ' || c == '/' || c == '\\') return -1;
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out[8 + j] = c;
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}
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}
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return 0;
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}
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/* 把 11 字符 8.3 名转为可显示字符串（如 "README.TXT"） */
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static void name_from_83(const char in[11], char out[13]) {
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int p = 0;
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for (int j = 0; j < 8; j++) {
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if (in[j] == ' ') break;
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out[p++] = in[j];
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}
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if (in[8] != ' ') {
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out[p++] = '.';
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for (int j = 8; j < 11; j++) {
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if (in[j] == ' ') break;
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out[p++] = in[j];
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}
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}
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out[p] = 0;
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}
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/* 在根目录簇链中查找 11 字符名，输出首簇号与文件大小 */
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static int fat32_find_in_root(const u8 *clus, u32 clus_sectors, const char *target,
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u32 *out_clus, u32 *out_size, u32 *out_idx) {
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const shell_fat32_de *dir = (const shell_fat32_de *)clus;
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for (u32 e = 0; e * 32 < clus_sectors * 512; e++) {
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if (dir[e].name[0] == 0) break;
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if ((u8)dir[e].name[0] == 0xE5) continue;
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if (dir[e].attr == 0x0F) continue;
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if (dir[e].attr & 0x08) continue;
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if (sh_neq11(dir[e].name, target)) {
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*out_clus = (u32)sh_r16((const u8*)&dir[e].clow) | ((u32)sh_r16((const u8*)&dir[e].chigh) << 16);
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*out_size = dir[e].fsize;
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if (out_idx) *out_idx = e;
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return 0;
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}
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}
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return -1;
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}
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/* 在目录簇链中查找名为 name11 的子目录（attr & 0x10），返回首簇号。
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* dir_clus: 目录起始簇号。返回 0 成功，-1 未找到。 */
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static int fat32_find_dir(u32 dir_clus, const char *name11, u32 *out_clus) {
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if (sh_disk_load() != 0) return -2;
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const shell_fat32_bpb *bpb = (const shell_fat32_bpb *)g_disk;
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u32 data_lba = bpb->rsvd + (u32)bpb->fc * bpb->spf;
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u32 fat_byte_off = bpb->rsvd * 512;
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u32 spc = bpb->spc;
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u32 clus = dir_clus;
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while (clus >= 2 && clus < 0x0FFFFFF8) {
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u32 lba = data_lba + (clus - 2) * spc;
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const u8 *cb;
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if ((u64)lba * 512 + (u64)spc * 512 <= 256ULL * 512)
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cb = g_disk + (u64)lba * 512;
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else {
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if (sh_read_sectors(lba, 8, g_cluster) != 0) return -4;
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cb = g_cluster;
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}
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const shell_fat32_de *dir = (const shell_fat32_de *)cb;
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for (u32 e = 0; e * 32 < spc * 512; e++) {
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if (dir[e].name[0] == 0) goto done_dir;
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if ((u8)dir[e].name[0] == 0xE5) continue;
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if (dir[e].attr == 0x0F) continue;
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if (dir[e].attr & 0x08) continue;
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if (!(dir[e].attr & 0x10)) continue; /* 只匹配目录 */
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if (sh_neq11(dir[e].name, name11)) {
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*out_clus = (u32)sh_r16((const u8*)&dir[e].clow)
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| ((u32)sh_r16((const u8*)&dir[e].chigh) << 16);
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return 0;
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}
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}
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u32 fo = fat_byte_off + clus * 4;
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if (fo + 4 > sizeof(g_disk)) break;
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clus = sh_r32(g_disk + fo) & 0x0FFFFFFF;
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}
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done_dir:
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return -1;
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}
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/* 从指定目录首簇读取文件到 g_fdata。
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* dir_clus: 目录起始簇号。name11: 8.3 名。
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* 返回 0 成功，*out_data 指向 g_fdata，*out_size 为字节数；非 0 失败。 */
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static int fat32_read_file_in_dir(u32 dir_clus, const char *name11,
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u8 **out_data, u32 *out_size) {
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if (sh_disk_load() != 0) return -1;
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const shell_fat32_bpb *bpb = (const shell_fat32_bpb *)g_disk;
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u32 data_lba = bpb->rsvd + (u32)bpb->fc * bpb->spf;
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u32 fat_byte_off = bpb->rsvd * 512;
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u32 spc = bpb->spc;
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u32 clus = dir_clus;
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u32 found_clus = 0, found_size = 0;
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int found = 0;
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while (clus >= 2 && clus < 0x0FFFFFF8 && !found) {
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u32 lba = data_lba + (clus - 2) * spc;
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const u8 *cb;
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if ((u64)lba * 512 + (u64)spc * 512 <= 256ULL * 512)
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cb = g_disk + (u64)lba * 512;
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else {
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if (sh_read_sectors(lba, 8, g_cluster) != 0) return -4;
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cb = g_cluster;
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}
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if (fat32_find_in_root(cb, spc, name11, &found_clus, &found_size, 0) == 0) { found = 1; break; }
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u32 fo = fat_byte_off + clus * 4;
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if (fo + 4 > sizeof(g_disk)) break;
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clus = sh_r32(g_disk + fo) & 0x0FFFFFFF;
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}
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if (!found) return -5;
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if (found_size > sizeof(g_fdata)) return -6;
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u8 *dst = g_fdata; u32 remaining = found_size; u32 fc = found_clus;
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while (fc >= 2 && fc < 0x0FFFFFF8 && remaining > 0) {
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u32 fc_lba = data_lba + (fc - 2) * spc;
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u32 fc_bytes = spc * 512;
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if (fc_bytes > remaining) fc_bytes = remaining;
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const u8 *fb;
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if ((u64)fc_lba * 512 + (u64)spc * 512 <= 256ULL * 512)
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fb = g_disk + (u64)fc_lba * 512;
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else {
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if (sh_read_sectors(fc_lba, 8, g_cluster) != 0) return -7;
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fb = g_cluster;
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}
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for (u32 b = 0; b < fc_bytes; b++) dst[b] = fb[b];
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dst += fc_bytes; remaining -= fc_bytes;
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u32 fo = fat_byte_off + fc * 4;
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if (fo + 4 > sizeof(g_disk)) break;
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fc = sh_r32(g_disk + fo) & 0x0FFFFFFF;
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}
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*out_data = g_fdata; *out_size = found_size;
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return 0;
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}
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/* 读取根目录下指定 8.3 名文件到 g_fdata。
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* 返回 0 成功，*out_data 指向 g_fdata，*out_size 为字节数；非 0 失败。 */
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static int fat32_read_root_file(const char *name11, u8 **out_data, u32 *out_size) {
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if (sh_disk_load() != 0) return -1;
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const shell_fat32_bpb *bpb = (const shell_fat32_bpb *)g_disk;
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return fat32_read_file_in_dir(bpb->root_clus, name11, out_data, out_size);
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}
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/* /bin 目录首簇号缓存 */
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static u32 g_bin_clus = 0;
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static int g_bin_checked = 0;
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/* 获取 /bin 目录首簇号。返回 0 成功，-1 未找到。 */
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static int get_bin_cluster(u32 *out_clus) {
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if (g_bin_checked) {
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if (g_bin_clus == 0) return -1;
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*out_clus = g_bin_clus;
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return 0;
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}
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g_bin_checked = 1;
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if (sh_disk_load() != 0) { g_bin_clus = 0; return -1; }
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const shell_fat32_bpb *bpb = (const shell_fat32_bpb *)g_disk;
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char bin83[11] = {'B','I','N',' ',' ',' ',' ',' ',' ',' ',' '};
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if (fat32_find_dir(bpb->root_clus, bin83, &g_bin_clus) != 0) {
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g_bin_clus = 0;
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return -1;
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}
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*out_clus = g_bin_clus;
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return 0;
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}
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/* 写入根目录下指定 8.3 名文件（存在则替换，不存在则新建）。
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* 依赖 g_disk 已加载 BPB+FAT。返回 0 成功。 */
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static int fat32_write_root_file(const char *name11, const u8 *data, u32 size) {
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if (sh_disk_load() != 0) return -1;
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/* 写入前重新加载 BPB+FAT，保证与盘上一致 */
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if (sh_read_sectors(0, 256, g_disk) != 0) return -2;
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const shell_fat32_bpb *bpb = (const shell_fat32_bpb *)g_disk;
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u32 spc = bpb->spc;
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u32 fat_lba = bpb->rsvd;
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u32 fat_sectors = bpb->spf;
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u32 data_lba = bpb->rsvd + (u32)bpb->fc * bpb->spf;
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u32 fat_byte_off = bpb->rsvd * 512;
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u32 root_clus = bpb->root_clus;
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u32 cluster_bytes = spc * 512;
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u32 root_lba = data_lba + (root_clus - 2) * spc;
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u8 *root_buf = g_disk + (u64)root_lba * 512;
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u32 max_entries = cluster_bytes / 32;
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shell_fat32_de *dir = (shell_fat32_de *)root_buf;
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int free_entry = -1;
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u32 existing_clus = 0;
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int found = 0;
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u32 existing_idx = 0;
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for (u32 e = 0; e < max_entries; e++) {
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if (dir[e].name[0] == 0) { if (free_entry < 0) free_entry = (int)e; break; }
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if ((u8)dir[e].name[0] == 0xE5) { if (free_entry < 0) free_entry = (int)e; continue; }
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if (dir[e].attr == 0x0F) continue;
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if (dir[e].attr & 0x08) continue;
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if (sh_neq11(dir[e].name, name11)) {
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existing_clus = (u32)sh_r16((const u8*)&dir[e].clow) | ((u32)sh_r16((const u8*)&dir[e].chigh) << 16);
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found = 1; existing_idx = e;
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if (free_entry < 0) free_entry = (int)e;
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break;
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}
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}
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u32 bytes_needed = size > 0 ? size : 1;
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u32 clusters_needed = (bytes_needed + cluster_bytes - 1) / cluster_bytes;
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u32 first_clus = 0;
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u32 prev_clus = 0;
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if (found && existing_clus >= 2) {
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first_clus = existing_clus;
|
||
u32 cur = existing_clus;
|
||
u32 count = 0;
|
||
while (cur >= 2 && cur < 0x0FFFFFF8 && count < clusters_needed) {
|
||
prev_clus = cur;
|
||
u32 fo = fat_byte_off + cur * 4;
|
||
if (fo + 4 > sizeof(g_disk)) break;
|
||
cur = sh_r32(g_disk + fo) & 0x0FFFFFFF;
|
||
count++;
|
||
}
|
||
while (count < clusters_needed) {
|
||
u32 newc = 0;
|
||
for (u32 c = 2; c < (fat_sectors * 512) / 4; c++) {
|
||
u32 fo = fat_byte_off + c * 4;
|
||
if (fo + 4 > sizeof(g_disk)) break;
|
||
if ((sh_r32(g_disk + fo) & 0x0FFFFFFF) == 0) { newc = c; break; }
|
||
}
|
||
if (newc == 0) return -3;
|
||
u32 pfo = fat_byte_off + prev_clus * 4;
|
||
if (pfo + 4 <= sizeof(g_disk)) {
|
||
g_disk[pfo] = (u8)(newc & 0xFF);
|
||
g_disk[pfo+1] = (u8)((newc >> 8) & 0xFF);
|
||
g_disk[pfo+2] = (u8)((newc >> 16) & 0xFF);
|
||
g_disk[pfo+3] = (u8)((newc >> 24) & 0x0F);
|
||
}
|
||
prev_clus = newc;
|
||
count++;
|
||
}
|
||
if (prev_clus >= 2) {
|
||
u32 fo = fat_byte_off + prev_clus * 4;
|
||
if (fo + 4 <= sizeof(g_disk)) {
|
||
g_disk[fo] = 0xF8; g_disk[fo+1] = 0xFF; g_disk[fo+2] = 0xFF; g_disk[fo+3] = 0x0F;
|
||
}
|
||
}
|
||
/* 释放多余旧簇 */
|
||
u32 next = 0;
|
||
u32 fo = fat_byte_off + prev_clus * 4;
|
||
if (fo + 4 <= sizeof(g_disk)) next = sh_r32(g_disk + fo) & 0x0FFFFFFF;
|
||
while (next >= 2 && next < 0x0FFFFFF8) {
|
||
u32 nfo = fat_byte_off + next * 4;
|
||
u32 nn = 0;
|
||
if (nfo + 4 <= sizeof(g_disk)) nn = sh_r32(g_disk + nfo) & 0x0FFFFFFF;
|
||
g_disk[nfo] = 0; g_disk[nfo+1] = 0; g_disk[nfo+2] = 0; g_disk[nfo+3] = 0;
|
||
next = nn;
|
||
}
|
||
} else {
|
||
if (free_entry < 0) return -4;
|
||
for (u32 i = 0; i < clusters_needed; i++) {
|
||
u32 newc = 0;
|
||
for (u32 c = 2; c < (fat_sectors * 512) / 4; c++) {
|
||
u32 fo = fat_byte_off + c * 4;
|
||
if (fo + 4 > sizeof(g_disk)) break;
|
||
if ((sh_r32(g_disk + fo) & 0x0FFFFFFF) == 0) { newc = c; break; }
|
||
}
|
||
if (newc == 0) return -3;
|
||
if (i == 0) first_clus = newc;
|
||
if (prev_clus >= 2) {
|
||
u32 pfo = fat_byte_off + prev_clus * 4;
|
||
g_disk[pfo] = (u8)(newc & 0xFF);
|
||
g_disk[pfo+1] = (u8)((newc >> 8) & 0xFF);
|
||
g_disk[pfo+2] = (u8)((newc >> 16) & 0xFF);
|
||
g_disk[pfo+3] = (u8)((newc >> 24) & 0x0F);
|
||
}
|
||
prev_clus = newc;
|
||
}
|
||
if (prev_clus >= 2) {
|
||
u32 fo = fat_byte_off + prev_clus * 4;
|
||
g_disk[fo] = 0xF8; g_disk[fo+1] = 0xFF; g_disk[fo+2] = 0xFF; g_disk[fo+3] = 0x0F;
|
||
}
|
||
}
|
||
|
||
/* 写数据到簇 */
|
||
u32 remaining = size;
|
||
const u8 *src = data;
|
||
u32 cur = first_clus;
|
||
u32 ci = 0;
|
||
while (cur >= 2 && cur < 0x0FFFFFF8 && ci < clusters_needed) {
|
||
u32 clba = data_lba + (cur - 2) * spc;
|
||
u32 chunk = remaining < cluster_bytes ? remaining : cluster_bytes;
|
||
if ((u64)clba * 512 + cluster_bytes <= 256ULL * 512) {
|
||
u8 *dst = g_disk + (u64)clba * 512;
|
||
for (u32 b = 0; b < chunk; b++) dst[b] = src[b];
|
||
for (u32 b = chunk; b < cluster_bytes; b++) dst[b] = 0;
|
||
} else {
|
||
if (sh_read_sectors(clba, spc, g_cluster) != 0) return -5;
|
||
for (u32 b = 0; b < chunk; b++) g_cluster[b] = src[b];
|
||
for (u32 b = chunk; b < cluster_bytes; b++) g_cluster[b] = 0;
|
||
if (sh_write_sectors(clba, spc, g_cluster) != 0) return -6;
|
||
}
|
||
src += chunk; remaining -= chunk; ci++;
|
||
u32 fo = fat_byte_off + cur * 4;
|
||
if (fo + 4 > sizeof(g_disk)) break;
|
||
cur = sh_r32(g_disk + fo) & 0x0FFFFFFF;
|
||
}
|
||
|
||
/* 更新目录项 */
|
||
u32 entry_idx = found ? existing_idx : (u32)free_entry;
|
||
shell_fat32_de *e = &dir[entry_idx];
|
||
if (!found) {
|
||
for (int i = 0; i < 11; i++) e->name[i] = name11[i];
|
||
e->attr = 0x20; e->ntr = 0; e->ctenth = 0; e->ctime = 0; e->cdate = 0; e->adate = 0;
|
||
}
|
||
e->chigh = (u16)((first_clus >> 16) & 0xFFFF);
|
||
e->clow = (u16)(first_clus & 0xFFFF);
|
||
e->fsize = size;
|
||
|
||
/* 回写 FAT（两份）+ 根目录 + 缓冲区内的数据簇 */
|
||
for (u32 f = 0; f < bpb->fc; f++) {
|
||
u32 flba = fat_lba + f * fat_sectors;
|
||
if (sh_write_sectors(flba, fat_sectors, g_disk + (u64)flba * 512) != 0) return -7;
|
||
}
|
||
u32 root_dir_lba = data_lba + (root_clus - 2) * spc;
|
||
if ((u64)root_dir_lba * 512 + cluster_bytes <= 256ULL * 512) {
|
||
if (sh_write_sectors(root_dir_lba, spc, g_disk + (u64)root_dir_lba * 512) != 0) return -8;
|
||
}
|
||
cur = first_clus; ci = 0;
|
||
while (cur >= 2 && cur < 0x0FFFFFF8 && ci < clusters_needed) {
|
||
u32 clba = data_lba + (cur - 2) * spc;
|
||
if ((u64)clba * 512 + cluster_bytes <= 256ULL * 512) {
|
||
if (sh_write_sectors(clba, spc, g_disk + (u64)clba * 512) != 0) return -9;
|
||
}
|
||
u32 fo = fat_byte_off + cur * 4;
|
||
if (fo + 4 > sizeof(g_disk)) break;
|
||
cur = sh_r32(g_disk + fo) & 0x0FFFFFFF;
|
||
ci++;
|
||
}
|
||
g_disk_loaded = 0; /* 下次操作重新加载，避免使用脏缓存 */
|
||
return 0;
|
||
}
|
||
|
||
/* 删除根目录下指定 8.3 名文件：清空簇链 + 标记目录项为 0xE5。
|
||
* 返回 0 成功，-1 未找到，其他负值失败。 */
|
||
static int fat32_delete_root_file(const char *name11) {
|
||
if (sh_disk_load() != 0) return -2;
|
||
if (sh_read_sectors(0, 256, g_disk) != 0) return -3;
|
||
const shell_fat32_bpb *bpb = (const shell_fat32_bpb *)g_disk;
|
||
u32 spc = bpb->spc;
|
||
u32 fat_lba = bpb->rsvd;
|
||
u32 fat_sectors = bpb->spf;
|
||
u32 data_lba = bpb->rsvd + (u32)bpb->fc * bpb->spf;
|
||
u32 fat_byte_off = bpb->rsvd * 512;
|
||
u32 root_clus = bpb->root_clus;
|
||
|
||
u32 root_lba = data_lba + (root_clus - 2) * spc;
|
||
u8 *root_buf = g_disk + (u64)root_lba * 512;
|
||
u32 max_entries = (spc * 512) / 32;
|
||
shell_fat32_de *dir = (shell_fat32_de *)root_buf;
|
||
u32 found_idx = 0xFFFFFFFFu;
|
||
for (u32 e = 0; e < max_entries; e++) {
|
||
if (dir[e].name[0] == 0) break;
|
||
if ((u8)dir[e].name[0] == 0xE5) continue;
|
||
if (dir[e].attr == 0x0F) continue;
|
||
if (dir[e].attr & 0x08) continue;
|
||
if (sh_neq11(dir[e].name, name11)) { found_idx = e; break; }
|
||
}
|
||
if (found_idx == 0xFFFFFFFFu) return -1;
|
||
|
||
/* 释放簇链 */
|
||
u32 cur = (u32)sh_r16((const u8*)&dir[found_idx].clow) | ((u32)sh_r16((const u8*)&dir[found_idx].chigh) << 16);
|
||
while (cur >= 2 && cur < 0x0FFFFFF8) {
|
||
u32 fo = fat_byte_off + cur * 4;
|
||
u32 next = 0;
|
||
if (fo + 4 <= sizeof(g_disk)) next = sh_r32(g_disk + fo) & 0x0FFFFFFF;
|
||
g_disk[fo] = 0; g_disk[fo+1] = 0; g_disk[fo+2] = 0; g_disk[fo+3] = 0;
|
||
cur = next;
|
||
}
|
||
/* 标记目录项为已删除 */
|
||
dir[found_idx].name[0] = (char)0xE5;
|
||
|
||
/* 回写 FAT + 根目录 */
|
||
for (u32 f = 0; f < bpb->fc; f++) {
|
||
u32 flba = fat_lba + f * fat_sectors;
|
||
if (sh_write_sectors(flba, fat_sectors, g_disk + (u64)flba * 512) != 0) return -4;
|
||
}
|
||
if (sh_write_sectors(root_lba, spc, g_disk + (u64)root_lba * 512) != 0) return -5;
|
||
g_disk_loaded = 0;
|
||
return 0;
|
||
}
|
||
|
||
/* 列出根目录所有文件/目录，调用回调输出 */
|
||
static int fat32_list_root(int (*emit)(const char *name, u32 size, u8 attr, void *u), void *u) {
|
||
if (sh_disk_load() != 0) return -1;
|
||
const shell_fat32_bpb *bpb = (const shell_fat32_bpb *)g_disk;
|
||
u32 data_lba = bpb->rsvd + (u32)bpb->fc * bpb->spf;
|
||
u32 fat_byte_off = bpb->rsvd * 512;
|
||
u32 spc = bpb->spc;
|
||
u32 clus = bpb->root_clus;
|
||
while (clus >= 2 && clus < 0x0FFFFFF8) {
|
||
u32 lba = data_lba + (clus - 2) * spc;
|
||
const u8 *cb;
|
||
if ((u64)lba * 512 + (u64)spc * 512 <= 256ULL * 512)
|
||
cb = g_disk + (u64)lba * 512;
|
||
else {
|
||
if (sh_read_sectors(lba, 8, g_cluster) != 0) return -4;
|
||
cb = g_cluster;
|
||
}
|
||
const shell_fat32_de *dir = (const shell_fat32_de *)cb;
|
||
for (u32 e = 0; e * 32 < spc * 512; e++) {
|
||
if (dir[e].name[0] == 0) goto done;
|
||
if ((u8)dir[e].name[0] == 0xE5) continue;
|
||
if (dir[e].attr == 0x0F) continue;
|
||
if (dir[e].attr & 0x08) continue;
|
||
char disp[13];
|
||
name_from_83(dir[e].name, disp);
|
||
if (emit(disp, dir[e].fsize, dir[e].attr, u) != 0) goto done;
|
||
}
|
||
u32 fo = fat_byte_off + clus * 4;
|
||
if (fo + 4 > sizeof(g_disk)) break;
|
||
clus = sh_r32(g_disk + fo) & 0x0FFFFFFF;
|
||
}
|
||
done:
|
||
return 0;
|
||
}
|
||
|
||
/* ---- 风格令牌（引用 deshab_ui.h 语义色） ---- */
|
||
#define BG_COLOR DS_DARK_BG_PRIMARY
|
||
#define TEXT_FG DS_DARK_TEXT_PRIMARY
|
||
#define PROMPT_FG DS_DARK_PROMPT
|
||
#define ERROR_FG DP_ERROR
|
||
#define OK_FG DP_SUCCESS
|
||
#define DIM_FG DS_DARK_TEXT_DIM
|
||
#define ACCENT_FG DS_DARK_ACCENT
|
||
#define DECORATIVE_FG DS_DARK_DECORATIVE
|
||
|
||
/* 标题栏参数 */
|
||
#define TITLEBAR_H 28
|
||
#define TITLEBAR_BG DP_ABYSS_800
|
||
#define TITLEBAR_FG DS_DARK_TEXT_SECONDARY
|
||
#define TITLEBAR_ACCENT DS_DARK_ACCENT
|
||
|
||
/* 状态栏参数 */
|
||
#define STATUSBAR_H 22
|
||
#define STATUSBAR_BG DP_ABYSS_800
|
||
|
||
/* 终端尺寸 */
|
||
#define TERM_COLS 100
|
||
#define TERM_ROWS 35
|
||
#define TERM_MAX_CHARS (TERM_COLS * TERM_ROWS)
|
||
|
||
static du_context g_ctx;
|
||
static u64 fb_a, fb_w, fb_h, fb_p;
|
||
|
||
/* 终端缓冲区 — 字符 + 颜色 */
|
||
static u8 term_ch[TERM_MAX_CHARS];
|
||
static u32 term_fg[TERM_MAX_CHARS];
|
||
static int term_w = TERM_COLS;
|
||
static int term_h = TERM_ROWS;
|
||
static int cur_col = 0;
|
||
static int cur_row = 0;
|
||
static int cur_visible = 1;
|
||
|
||
/* ---- 终端像素坐标 ---- */
|
||
static int term_start_x, term_start_y;
|
||
|
||
static void term_init_pos(void) {
|
||
int margin_x = (int)DU_SPACE_MD;
|
||
term_start_x = margin_x;
|
||
/* 标题栏下方开始 */
|
||
term_start_y = TITLEBAR_H + (int)DU_SPACE_SM;
|
||
int avail_w = (int)fb_w - margin_x * 2;
|
||
int avail_h = (int)fb_h - term_start_y - STATUSBAR_H - (int)DU_SPACE_SM;
|
||
term_w = avail_w / (int)DU_ASCII_STEP;
|
||
term_h = avail_h / (int)DU_ASCII_LINE_H;
|
||
if (term_w < 10) term_w = 10;
|
||
if (term_h < 5) term_h = 5;
|
||
if (term_w > TERM_COLS) term_w = TERM_COLS;
|
||
if (term_h > TERM_ROWS) term_h = TERM_ROWS;
|
||
}
|
||
|
||
static void term_clear(void) {
|
||
for (int i = 0; i < TERM_MAX_CHARS; i++) {
|
||
term_ch[i] = ' ';
|
||
term_fg[i] = TEXT_FG;
|
||
}
|
||
cur_col = 0;
|
||
cur_row = 0;
|
||
}
|
||
|
||
static void term_scroll(void) {
|
||
for (int r = 1; r < term_h; r++) {
|
||
for (int c = 0; c < term_w; c++) {
|
||
int src = r * TERM_COLS + c;
|
||
int dst = (r-1) * TERM_COLS + c;
|
||
term_ch[dst] = term_ch[src];
|
||
term_fg[dst] = term_fg[src];
|
||
}
|
||
}
|
||
for (int c = 0; c < term_w; c++) {
|
||
term_ch[(term_h-1) * TERM_COLS + c] = ' ';
|
||
term_fg[(term_h-1) * TERM_COLS + c] = TEXT_FG;
|
||
}
|
||
cur_row = term_h - 1;
|
||
cur_col = 0;
|
||
}
|
||
|
||
static void term_newline(void) {
|
||
cur_col = 0;
|
||
cur_row++;
|
||
if (cur_row >= term_h) term_scroll();
|
||
}
|
||
|
||
/* dev_mode 串口镜像：reserved[3]=1 时终端输出同步写 COM1，便于自动化验证 */
|
||
static int g_serial_mirror = 0;
|
||
|
||
static void term_putc_color(char c, u32 color) {
|
||
if (g_serial_mirror) { if (c == '\n') sputc('\r'); sputc(c); }
|
||
if (c == '\n') { term_newline(); return; }
|
||
if (c == '\r') { cur_col = 0; return; }
|
||
if (c == '\t') {
|
||
int spaces = 4 - (cur_col % 4);
|
||
for (int i = 0; i < spaces; i++) term_putc_color(' ', color);
|
||
return;
|
||
}
|
||
if (c < ' ' || c > '~') c = '?';
|
||
if (cur_col >= term_w) term_newline();
|
||
int idx = cur_row * TERM_COLS + cur_col;
|
||
term_ch[idx] = (u8)c;
|
||
term_fg[idx] = color;
|
||
cur_col++;
|
||
}
|
||
|
||
static void term_putc(char c) { term_putc_color(c, TEXT_FG); }
|
||
static void term_puts_color(const char *s, u32 color) { while (*s) term_putc_color(*s++, color); }
|
||
static void term_puts(const char *s) { term_puts_color(s, TEXT_FG); }
|
||
|
||
/* ---- 标题栏渲染 ---- */
|
||
static void draw_titlebar(void) {
|
||
du_fill_rect(&g_ctx, 0, 0, (i64)fb_w, TITLEBAR_H, TITLEBAR_BG);
|
||
/* 底部强调线 */
|
||
du_fill_rect(&g_ctx, 0, TITLEBAR_H - 2, (i64)fb_w, 2, TITLEBAR_ACCENT);
|
||
/* 左侧标题文字 */
|
||
du_draw_string(&g_ctx, "Deshab Shell",
|
||
(i64)DU_SPACE_MD, (TITLEBAR_H - (i64)DU_ASCII_CELL_H) / 2,
|
||
DS_DARK_TEXT_PRIMARY, TITLEBAR_BG, DU_ASCII_STEP);
|
||
/* 右侧版本号 */
|
||
du_draw_string(&g_ctx, "v0.1.0",
|
||
(i64)fb_w - 6 * (i64)DU_ASCII_STEP - (i64)DU_SPACE_MD,
|
||
(TITLEBAR_H - (i64)DU_ASCII_CELL_H) / 2,
|
||
DS_DARK_TEXT_DIM, TITLEBAR_BG, DU_ASCII_STEP);
|
||
}
|
||
|
||
/* ---- 状态栏渲染 ---- */
|
||
static void draw_statusbar(void) {
|
||
i64 sy = (i64)fb_h - STATUSBAR_H;
|
||
du_fill_rect(&g_ctx, 0, sy, (i64)fb_w, STATUSBAR_H, STATUSBAR_BG);
|
||
/* 顶部强调线 */
|
||
du_fill_rect(&g_ctx, 0, sy, (i64)fb_w, 1, DS_DARK_DIVIDER);
|
||
/* 左侧：当前路径 */
|
||
du_draw_string(&g_ctx, "/",
|
||
(i64)DU_SPACE_MD, sy + (STATUSBAR_H - (i64)DU_ASCII_CELL_H) / 2,
|
||
DS_DARK_TEXT_DIM, STATUSBAR_BG, DU_ASCII_STEP);
|
||
/* 右侧：root@deshab */
|
||
const char *user = "root@deshab";
|
||
int ulen = 0;
|
||
while (user[ulen]) ulen++;
|
||
du_draw_string(&g_ctx, user,
|
||
(i64)fb_w - ulen * (i64)DU_ASCII_STEP - (i64)DU_SPACE_MD,
|
||
sy + (STATUSBAR_H - (i64)DU_ASCII_CELL_H) / 2,
|
||
DS_DARK_ACCENT, STATUSBAR_BG, DU_ASCII_STEP);
|
||
}
|
||
|
||
static void term_redraw_all(void) {
|
||
/* 清屏背景 */
|
||
du_fill_bg_solid(&g_ctx, BG_COLOR);
|
||
/* 标题栏 */
|
||
draw_titlebar();
|
||
/* 渲染所有字符 */
|
||
for (int r = 0; r < term_h; r++) {
|
||
for (int c = 0; c < term_w; c++) {
|
||
int idx = r * TERM_COLS + c;
|
||
u8 ch = term_ch[idx];
|
||
if (ch == ' ') continue;
|
||
i64 x = term_start_x + (i64)c * (i64)DU_ASCII_STEP;
|
||
i64 y = term_start_y + (i64)r * (i64)DU_ASCII_LINE_H;
|
||
du_draw_char(&g_ctx, ch, x, y, term_fg[idx], BG_COLOR);
|
||
}
|
||
}
|
||
/* 光标 */
|
||
if (cur_visible && cur_col < term_w && cur_row < term_h) {
|
||
i64 x = term_start_x + (i64)cur_col * (i64)DU_ASCII_STEP;
|
||
i64 y = term_start_y + (i64)cur_row * (i64)DU_ASCII_LINE_H;
|
||
du_fill_rect(&g_ctx, x, y + (i64)DU_ASCII_CELL_H - 3,
|
||
(i64)DU_ASCII_CELL_W, 2, DS_DARK_CURSOR);
|
||
}
|
||
/* 状态栏 */
|
||
draw_statusbar();
|
||
}
|
||
|
||
static void term_redraw_cursor(void) {
|
||
if (cur_visible && cur_col < term_w && cur_row < term_h) {
|
||
i64 x = term_start_x + (i64)cur_col * (i64)DU_ASCII_STEP;
|
||
i64 y = term_start_y + (i64)cur_row * (i64)DU_ASCII_LINE_H;
|
||
du_fill_rect(&g_ctx, x, y + (i64)DU_ASCII_CELL_H - 3,
|
||
(i64)DU_ASCII_CELL_W, 2, DS_DARK_CURSOR);
|
||
}
|
||
}
|
||
|
||
static void term_clear_cursor(void) {
|
||
if (cur_col < term_w && cur_row < term_h) {
|
||
i64 x = term_start_x + (i64)cur_col * (i64)DU_ASCII_STEP;
|
||
i64 y = term_start_y + (i64)cur_row * (i64)DU_ASCII_LINE_H;
|
||
du_fill_rect(&g_ctx, x, y + (i64)DU_ASCII_CELL_H - 3,
|
||
(i64)DU_ASCII_CELL_W, 2, BG_COLOR);
|
||
}
|
||
}
|
||
|
||
/* ---- 输入缓冲 ---- */
|
||
static char input_buf[256];
|
||
static int input_len = 0;
|
||
static int input_cursor = 0;
|
||
|
||
/* ---- 命令历史（上下箭头浏览） ---- */
|
||
/* 前向声明: redraw_input_line 在下方定义 */
|
||
static void redraw_input_line(void);
|
||
|
||
#define HISTORY_MAX 32
|
||
static char g_history[HISTORY_MAX][256];
|
||
static int g_history_count = 0; /* 已记录命令条数 (0..HISTORY_MAX) */
|
||
static int g_history_view = -1; /* 当前浏览索引, -1 表示正在编辑新输入 */
|
||
|
||
/* 将命令推入历史。空字符串或纯空白不入历史；与最近一条相同时跳过。 */
|
||
static void history_push(const char *cmd) {
|
||
const char *p = cmd;
|
||
while (*p == ' ') p++;
|
||
if (*p == 0) return;
|
||
/* 与最近一条相同则跳过 */
|
||
if (g_history_count > 0) {
|
||
const char *latest = g_history[(g_history_count - 1) % HISTORY_MAX];
|
||
const char *a = latest;
|
||
const char *b = p;
|
||
while (*a && *b && *a == *b) { a++; b++; }
|
||
if (*a == 0 && *b == 0) return;
|
||
}
|
||
int idx = g_history_count % HISTORY_MAX;
|
||
int i = 0;
|
||
while (p[i] && i < 255) { g_history[idx][i] = p[i]; i++; }
|
||
g_history[idx][i] = 0;
|
||
if (g_history_count < HISTORY_MAX) g_history_count++;
|
||
}
|
||
|
||
/* 加载历史条目到 input_buf 并刷新显示 */
|
||
static void history_load(int idx) {
|
||
const char *src = g_history[idx % HISTORY_MAX];
|
||
int i = 0;
|
||
while (src[i] && i < 255) { input_buf[i] = src[i]; i++; }
|
||
input_buf[i] = 0;
|
||
input_len = i;
|
||
input_cursor = i;
|
||
redraw_input_line();
|
||
}
|
||
|
||
/* 上箭头: 浏览更早的命令 */
|
||
static void history_prev(void) {
|
||
if (g_history_count == 0) return;
|
||
if (g_history_view == -1) {
|
||
g_history_view = g_history_count - 1;
|
||
} else if (g_history_view > 0) {
|
||
g_history_view--;
|
||
} else {
|
||
return; /* 已到达最早一条 */
|
||
}
|
||
history_load(g_history_view);
|
||
}
|
||
|
||
/* 下箭头: 浏览更新的命令; 超过最新则回到空输入 */
|
||
static void history_next(void) {
|
||
if (g_history_view == -1) return;
|
||
g_history_view++;
|
||
if (g_history_view >= g_history_count) {
|
||
g_history_view = -1;
|
||
input_len = 0;
|
||
input_cursor = 0;
|
||
input_buf[0] = 0;
|
||
redraw_input_line();
|
||
return;
|
||
}
|
||
history_load(g_history_view);
|
||
}
|
||
|
||
/* ---- 键盘扫描码 → ASCII（Set 1） ---- */
|
||
static char scan_to_ascii(u8 sc, int shift) {
|
||
static const char normal[58] = {
|
||
0, 27, '1','2','3','4','5','6','7','8','9','0','-','=', 8, '\t',
|
||
'q','w','e','r','t','y','u','i','o','p','[',']','\n',0,
|
||
'a','s','d','f','g','h','j','k','l',';','\'', '`',0,'\\',
|
||
'z','x','c','v','b','n','m',',','.','/',0,'*',0,' '
|
||
};
|
||
static const char shifted[58] = {
|
||
0, 27, '!','@','#','$','%','^','&','*','(',')','_','+', 8, '\t',
|
||
'Q','W','E','R','T','Y','U','I','O','P','{','}','\n',0,
|
||
'A','S','D','F','G','H','J','K','L',':','"','~',0,'|',
|
||
'Z','X','C','V','B','N','M','<','>','?',0,'*',0,' '
|
||
};
|
||
if (sc >= 58) return 0;
|
||
return shift ? shifted[sc] : normal[sc];
|
||
}
|
||
|
||
/* ---- 内置命令 ---- */
|
||
static int str_eq(const char *a, const char *b) {
|
||
while (*a && *b) { if (*a != *b) return 0; a++; b++; }
|
||
return *a == *b;
|
||
}
|
||
|
||
static void cmd_help(void) {
|
||
term_puts_color("Deshab Shell — 内置命令列表:\n", PROMPT_FG);
|
||
term_puts(" help 显示此帮助\n");
|
||
term_puts(" clear 清屏\n");
|
||
term_puts(" echo <text> 显示文本（-n 不换行, > file 重定向写盘）\n");
|
||
term_puts(" ls / dir 列出根目录文件\n");
|
||
term_puts(" cat <file> 显示文件内容\n");
|
||
term_puts(" cp <s> <d> 复制文件\n");
|
||
term_puts(" mv <s> <d> 移动/重命名文件\n");
|
||
term_puts(" rm <file> 删除文件\n");
|
||
term_puts(" pwd 显示当前目录\n");
|
||
term_puts(" whoami 显示当前用户\n");
|
||
term_puts(" id 显示用户ID\n");
|
||
term_puts(" version/ver 显示系统版本\n");
|
||
term_puts(" uname 显示系统名称\n");
|
||
term_puts(" date 显示当前日期\n");
|
||
term_puts(" about 关于 Deshab\n");
|
||
term_puts(" pci 列出 PCI 设备\n");
|
||
term_puts(" run <NAME.ELF> 运行根目录下的工具程序\n");
|
||
term_puts(" linux <prog> [args] 通过双内核兼容层运行 Linux 程序\n");
|
||
term_puts(" reboot 重启系统\n");
|
||
term_puts(" halt 关机（停止 CPU）\n");
|
||
term_putc('\n');
|
||
term_puts_color("外部命令（/bin/ 目录，PATH 自动查找）:\n", DIM_FG);
|
||
term_puts(" ping ICMP echo 测试工具\n");
|
||
term_puts(" curl HTTP GET 请求工具\n");
|
||
}
|
||
|
||
static void cmd_version(void) {
|
||
term_puts_color("Deshab OS v0.1.0\n", OK_FG);
|
||
term_puts(" Kernel: DSK (Deshab System Kernel)\n");
|
||
term_puts(" Architecture: x86_64\n");
|
||
term_puts(" ABI: DKM (Deshab Kernel Module) v1\n");
|
||
term_puts(" Bootloader: Limine\n");
|
||
term_puts_color(" Style: Sealed Arc (Deshab UI)\n", DIM_FG);
|
||
}
|
||
|
||
static void cmd_uname(void) {
|
||
term_puts("Deshab\n");
|
||
}
|
||
|
||
static void cmd_about(void) {
|
||
term_puts_color("=== Deshab OS ===\n", PROMPT_FG);
|
||
term_puts("单地址空间 Ring0 内核实验系统\n");
|
||
term_puts("架构: UTSM + DSK + DKM 驱动模型\n");
|
||
term_puts_color("视觉: Sealed Arc 设计语言\n", DECORATIVE_FG);
|
||
term_puts_color("Built with Clang + lld\n", DIM_FG);
|
||
term_puts_color("(c) 2026 Deshab Project\n", DIM_FG);
|
||
}
|
||
|
||
static void cmd_clear(void) {
|
||
term_clear();
|
||
term_redraw_all();
|
||
}
|
||
|
||
static void cmd_reboot(void) {
|
||
term_puts_color("Rebooting...\n", PROMPT_FG);
|
||
term_redraw_all();
|
||
outb(0x64, 0xFE);
|
||
__asm__ volatile("int $0x03");
|
||
for(;;) __asm__("hlt");
|
||
}
|
||
|
||
static void cmd_halt(void) {
|
||
term_puts_color("System halted.\n", PROMPT_FG);
|
||
term_redraw_all();
|
||
for(;;) __asm__("hlt");
|
||
}
|
||
|
||
/* echo：支持 -n（不换行）和 " > file" 重定向写盘 */
|
||
static void cmd_echo(const char *args) {
|
||
int newline = 1;
|
||
if (args && args[0] == '-' && args[1] == 'n' && (args[2] == ' ' || args[2] == 0)) {
|
||
newline = 0;
|
||
args += 2;
|
||
while (*args == ' ') args++;
|
||
}
|
||
/* 检测 " > file" 重定向 */
|
||
const char *redir = 0;
|
||
if (args) {
|
||
const char *p = args;
|
||
while (*p) { if (*p == '>') { redir = p; break; } p++; }
|
||
}
|
||
if (redir) {
|
||
int text_len = (int)(redir - args);
|
||
while (text_len > 0 && args[text_len-1] == ' ') text_len--;
|
||
const char *fname = redir + 1;
|
||
while (*fname == ' ') fname++;
|
||
char fnbuf[64]; int fl = 0;
|
||
while (*fname && *fname != ' ' && fl < 63) fnbuf[fl++] = *fname++;
|
||
fnbuf[fl] = 0;
|
||
if (fl == 0) { term_puts_color("echo: 重定向缺少文件名\n", ERROR_FG); return; }
|
||
char n83[11];
|
||
if (name_to_83(fnbuf, n83) != 0) { term_puts_color("echo: 无效文件名\n", ERROR_FG); return; }
|
||
static char echo_buf[4096];
|
||
int el = 0;
|
||
for (int i = 0; i < text_len && el < 4095; i++) echo_buf[el++] = args[i];
|
||
if (newline) echo_buf[el++] = '\n';
|
||
if (!g_block_write) { term_puts_color("echo: 无块设备写能力\n", ERROR_FG); return; }
|
||
int rc = fat32_write_root_file(n83, (const u8 *)echo_buf, (u32)el);
|
||
if (rc != 0) { term_puts_color("echo: 写入失败\n", ERROR_FG); return; }
|
||
term_puts_color("echo: 已写入 ", OK_FG);
|
||
term_puts_color(fnbuf, OK_FG);
|
||
term_putc('\n');
|
||
return;
|
||
}
|
||
if (args && *args) term_puts_color(args, TEXT_FG);
|
||
if (newline) term_putc('\n');
|
||
}
|
||
|
||
static u8 read_rtc_reg(u8 reg);
|
||
static u8 bcd_to_bin_impl(u8 bcd);
|
||
|
||
static void cmd_date(void) {
|
||
u8 year = bcd_to_bin_impl(read_rtc_reg(9));
|
||
u8 month = bcd_to_bin_impl(read_rtc_reg(8));
|
||
u8 day = bcd_to_bin_impl(read_rtc_reg(7));
|
||
u8 hour = bcd_to_bin_impl(read_rtc_reg(4));
|
||
u8 minute = bcd_to_bin_impl(read_rtc_reg(2));
|
||
u8 second = bcd_to_bin_impl(read_rtc_reg(0));
|
||
char buf[32];
|
||
int p = 0;
|
||
buf[p++] = '2'; buf[p++] = '0';
|
||
buf[p++] = '0' + year / 10; buf[p++] = '0' + year % 10;
|
||
buf[p++] = '-';
|
||
buf[p++] = '0' + month / 10; buf[p++] = '0' + month % 10;
|
||
buf[p++] = '-';
|
||
buf[p++] = '0' + day / 10; buf[p++] = '0' + day % 10;
|
||
buf[p++] = ' ';
|
||
buf[p++] = '0' + hour / 10; buf[p++] = '0' + hour % 10;
|
||
buf[p++] = ':';
|
||
buf[p++] = '0' + minute / 10; buf[p++] = '0' + minute % 10;
|
||
buf[p++] = ':';
|
||
buf[p++] = '0' + second / 10; buf[p++] = '0' + second % 10;
|
||
buf[p] = 0;
|
||
term_puts(buf);
|
||
term_putc('\n');
|
||
}
|
||
|
||
static void cmd_unknown(const char *cmd) {
|
||
term_puts_color("未知命令: ", ERROR_FG);
|
||
term_puts_color(cmd, ERROR_FG);
|
||
term_putc('\n');
|
||
term_puts_color("输入 'help' 查看可用命令\n", DIM_FG);
|
||
}
|
||
|
||
static void cmd_not_impl(const char *cmd) {
|
||
term_puts_color(cmd, ERROR_FG);
|
||
term_puts_color(": 此命令尚未实现\n", ERROR_FG);
|
||
}
|
||
|
||
/* ============================================================
|
||
* 文件命令：ls / cat / cp / mv / rm（FAT32 根目录）
|
||
* ============================================================ */
|
||
|
||
/* 从 args 解析一个空白分隔 token 到 out(最多 max-1 字符)，返回剩余 args 指针 */
|
||
static const char *parse_token(const char *args, char *out, int max) {
|
||
int n = 0;
|
||
while (*args == ' ') args++;
|
||
while (*args && *args != ' ' && n < max - 1) out[n++] = *args++;
|
||
out[n] = 0;
|
||
return args;
|
||
}
|
||
|
||
/* u32 → 十进制字符串 */
|
||
static void u32_to_dec(char *buf, u32 v) {
|
||
char tmp[12]; int n = 0;
|
||
if (v == 0) { buf[0] = '0'; buf[1] = 0; return; }
|
||
while (v && n < 11) { tmp[n++] = (char)('0' + v % 10); v /= 10; }
|
||
for (int i = 0; i < n; i++) buf[i] = tmp[n - 1 - i];
|
||
buf[n] = 0;
|
||
}
|
||
|
||
/* ls 回调：每行打印一个条目 */
|
||
static int ls_emit(const char *name, u32 size, u8 attr, void *u) {
|
||
(void)u;
|
||
if (attr & 0x10) term_puts_color("[DIR] ", ACCENT_FG);
|
||
else term_puts_color(" ", TEXT_FG);
|
||
term_puts_color(name, TEXT_FG);
|
||
/* 名字对齐填充 */
|
||
int nl = 0; while (name[nl]) nl++;
|
||
for (int i = nl; i < 14; i++) term_putc(' ');
|
||
if (!(attr & 0x10)) {
|
||
char sz[12]; u32_to_dec(sz, size);
|
||
term_puts_color(sz, DIM_FG);
|
||
term_puts_color(" B", DIM_FG);
|
||
}
|
||
term_putc('\n');
|
||
return 0;
|
||
}
|
||
|
||
static void cmd_ls(void) {
|
||
if (!g_block_read) { term_puts_color("ls: 无块设备\n", ERROR_FG); return; }
|
||
if (fat32_list_root(ls_emit, 0) != 0) {
|
||
term_puts_color("ls: 读取根目录失败\n", ERROR_FG);
|
||
}
|
||
}
|
||
|
||
static void cmd_cat(const char *args) {
|
||
if (!g_block_read) { term_puts_color("cat: 无块设备\n", ERROR_FG); return; }
|
||
char fn[64];
|
||
parse_token(args, fn, 64);
|
||
if (fn[0] == 0) { term_puts_color("用法: cat <文件>\n", ERROR_FG); return; }
|
||
char n83[11];
|
||
if (name_to_83(fn, n83) != 0) { term_puts_color("cat: 无效文件名\n", ERROR_FG); return; }
|
||
u8 *data = 0; u32 size = 0;
|
||
if (fat32_read_root_file(n83, &data, &size) != 0) {
|
||
term_puts_color("cat: 文件不存在\n", ERROR_FG);
|
||
return;
|
||
}
|
||
for (u32 i = 0; i < size; i++) term_putc((char)data[i]);
|
||
}
|
||
|
||
static void cmd_cp(const char *args) {
|
||
if (!g_block_read || !g_block_write) { term_puts_color("cp: 需要块设备读写能力\n", ERROR_FG); return; }
|
||
char src[64], dst[64];
|
||
args = parse_token(args, src, 64);
|
||
parse_token(args, dst, 64);
|
||
if (src[0] == 0 || dst[0] == 0) {
|
||
term_puts_color("用法: cp <源文件> <目标文件>\n", ERROR_FG);
|
||
return;
|
||
}
|
||
char s83[11], d83[11];
|
||
if (name_to_83(src, s83) != 0) { term_puts_color("cp: 无效源文件名\n", ERROR_FG); return; }
|
||
if (name_to_83(dst, d83) != 0) { term_puts_color("cp: 无效目标文件名\n", ERROR_FG); return; }
|
||
u8 *data = 0; u32 size = 0;
|
||
if (fat32_read_root_file(s83, &data, &size) != 0) {
|
||
term_puts_color("cp: 源文件不存在或读取失败\n", ERROR_FG);
|
||
return;
|
||
}
|
||
if (fat32_write_root_file(d83, data, size) != 0) {
|
||
term_puts_color("cp: 写入目标失败\n", ERROR_FG);
|
||
return;
|
||
}
|
||
term_puts_color("cp: ", OK_FG);
|
||
term_puts_color(src, OK_FG);
|
||
term_puts_color(" -> ", OK_FG);
|
||
term_puts_color(dst, OK_FG);
|
||
term_puts_color(" (", DIM_FG);
|
||
char sz[12]; u32_to_dec(sz, size);
|
||
term_puts_color(sz, DIM_FG);
|
||
term_puts_color(" bytes)\n", DIM_FG);
|
||
}
|
||
|
||
static void cmd_mv(const char *args) {
|
||
if (!g_block_read || !g_block_write) { term_puts_color("mv: 需要块设备读写能力\n", ERROR_FG); return; }
|
||
char src[64], dst[64];
|
||
args = parse_token(args, src, 64);
|
||
parse_token(args, dst, 64);
|
||
if (src[0] == 0 || dst[0] == 0) {
|
||
term_puts_color("用法: mv <源文件> <目标文件>\n", ERROR_FG);
|
||
return;
|
||
}
|
||
char s83[11], d83[11];
|
||
if (name_to_83(src, s83) != 0) { term_puts_color("mv: 无效源文件名\n", ERROR_FG); return; }
|
||
if (name_to_83(dst, d83) != 0) { term_puts_color("mv: 无效目标文件名\n", ERROR_FG); return; }
|
||
u8 *data = 0; u32 size = 0;
|
||
if (fat32_read_root_file(s83, &data, &size) != 0) {
|
||
term_puts_color("mv: 源文件不存在或读取失败\n", ERROR_FG);
|
||
return;
|
||
}
|
||
if (fat32_write_root_file(d83, data, size) != 0) {
|
||
term_puts_color("mv: 写入目标失败\n", ERROR_FG);
|
||
return;
|
||
}
|
||
/* 写入后 g_disk 缓存已失效，delete 会重新加载 BPB+FAT */
|
||
if (fat32_delete_root_file(s83) != 0) {
|
||
term_puts_color("mv: 警告 — 源文件删除失败，目标已写入\n", DP_WARNING);
|
||
return;
|
||
}
|
||
term_puts_color("mv: ", OK_FG);
|
||
term_puts_color(src, OK_FG);
|
||
term_puts_color(" -> ", OK_FG);
|
||
term_puts_color(dst, OK_FG);
|
||
term_putc('\n');
|
||
}
|
||
|
||
static void cmd_rm(const char *args) {
|
||
if (!g_block_write) { term_puts_color("rm: 需要块设备写能力\n", ERROR_FG); return; }
|
||
char fn[64];
|
||
parse_token(args, fn, 64);
|
||
if (fn[0] == 0) { term_puts_color("用法: rm <文件>\n", ERROR_FG); return; }
|
||
char n83[11];
|
||
if (name_to_83(fn, n83) != 0) { term_puts_color("rm: 无效文件名\n", ERROR_FG); return; }
|
||
int rc = fat32_delete_root_file(n83);
|
||
if (rc == -1) { term_puts_color("rm: 文件不存在\n", ERROR_FG); return; }
|
||
if (rc != 0) { term_puts_color("rm: 删除失败\n", ERROR_FG); return; }
|
||
term_puts_color("rm: 已删除 ", OK_FG);
|
||
term_puts_color(fn, OK_FG);
|
||
term_putc('\n');
|
||
}
|
||
|
||
/* ---- PCI 设备列表 ---- */
|
||
static u32 pci_config_read(u8 bus, u8 dev, u8 func, u8 reg) {
|
||
u32 addr = 0x80000000u | ((u32)bus << 16) | ((u32)dev << 11)
|
||
| ((u32)func << 8) | ((u32)reg & 0xFCu);
|
||
outl(0xCF8, addr);
|
||
return inl(0xCFC);
|
||
}
|
||
|
||
static void hex_nibble(char *buf, u8 v) {
|
||
v = (u8)(v & 0x0F);
|
||
buf[0] = (char)(v < 10 ? '0' + v : 'A' + (v - 10));
|
||
}
|
||
|
||
static void u8_to_hex(char *buf, u8 v) {
|
||
hex_nibble(buf, (u8)(v >> 4));
|
||
hex_nibble(buf + 1, v);
|
||
buf[2] = 0;
|
||
}
|
||
|
||
static void u16_to_hex(char *buf, u16 v) {
|
||
hex_nibble(buf, (u8)(v >> 12));
|
||
hex_nibble(buf+1, (u8)(v >> 8));
|
||
hex_nibble(buf+2, (u8)(v >> 4));
|
||
hex_nibble(buf+3, v);
|
||
buf[4] = 0;
|
||
}
|
||
|
||
static void u8_to_dec(char *buf, u8 v) {
|
||
if (v >= 100) {
|
||
buf[0] = (char)('0' + v / 100);
|
||
buf[1] = (char)('0' + (v / 10) % 10);
|
||
buf[2] = (char)('0' + v % 10);
|
||
buf[3] = 0;
|
||
} else if (v >= 10) {
|
||
buf[0] = (char)('0' + v / 10);
|
||
buf[1] = (char)('0' + v % 10);
|
||
buf[2] = 0;
|
||
} else {
|
||
buf[0] = (char)('0' + v);
|
||
buf[1] = 0;
|
||
}
|
||
}
|
||
|
||
static const char *pci_vendor_name(u16 vendor) {
|
||
switch (vendor) {
|
||
case 0x8086: return "Intel";
|
||
case 0x1234: return "Bochs/QEMU";
|
||
case 0x1AF4: return "Virtio";
|
||
case 0x168C: return "Atheros";
|
||
case 0x10DE: return "NVIDIA";
|
||
case 0x1002: return "AMD";
|
||
case 0x10EC: return "Realtek";
|
||
case 0x14E4: return "Broadcom";
|
||
case 0x1B36: return "Red Hat";
|
||
case 0x1022: return "AMD-x86";
|
||
case 0x106B: return "Apple";
|
||
default: return "";
|
||
}
|
||
}
|
||
|
||
static const char *pci_class_name(u8 class_code) {
|
||
switch (class_code) {
|
||
case 0x00: return "Unclassified";
|
||
case 0x01: return "Mass storage";
|
||
case 0x02: return "Network";
|
||
case 0x03: return "Display";
|
||
case 0x04: return "Multimedia";
|
||
case 0x05: return "Memory";
|
||
case 0x06: return "Bridge";
|
||
case 0x07: return "Comm";
|
||
case 0x08: return "Sys peripheral";
|
||
case 0x09: return "Input";
|
||
case 0x0C: return "Serial bus";
|
||
case 0x0D: return "Wireless";
|
||
case 0x10: return "Encryption";
|
||
case 0x11: return "Signal proc";
|
||
case 0x40: return "Coprocessor";
|
||
default: return "Other";
|
||
}
|
||
}
|
||
|
||
static void cmd_pci(void) {
|
||
int count = 0;
|
||
term_puts_color("PCI 设备列表:\n", PROMPT_FG);
|
||
for (u8 bus = 0; bus < 1; bus++) {
|
||
for (u8 dev = 0; dev < 32; dev++) {
|
||
u32 vd = pci_config_read(bus, dev, 0, 0x00);
|
||
if ((vd & 0xFFFFu) == 0xFFFFu) continue;
|
||
u32 hdr_class = pci_config_read(bus, dev, 0, 0x0C);
|
||
u8 header_type = (u8)((hdr_class >> 16) & 0xFF);
|
||
u8 func_count = (u8)((header_type & 0x80) ? 8 : 1);
|
||
for (u8 func = 0; func < func_count; func++) {
|
||
u32 vdf = pci_config_read(bus, dev, func, 0x00);
|
||
u16 vendor = (u16)(vdf & 0xFFFFu);
|
||
u16 device = (u16)(vdf >> 16);
|
||
if (vendor == 0xFFFFu) continue;
|
||
u32 cls = pci_config_read(bus, dev, func, 0x08);
|
||
u8 rev = (u8)(cls & 0xFF);
|
||
u8 prog_if = (u8)((cls >> 8) & 0xFF);
|
||
u8 subclass = (u8)((cls >> 16) & 0xFF);
|
||
u8 class_code = (u8)((cls >> 24) & 0xFF);
|
||
|
||
char line[80];
|
||
int p = 0;
|
||
/* "00:00.0 " */
|
||
u8_to_hex(line + p, bus); p += 2;
|
||
line[p++] = ':';
|
||
u8_to_hex(line + p, dev); p += 2;
|
||
line[p++] = '.';
|
||
u8_to_hex(line + p, func); p += 2;
|
||
line[p++] = ' ';
|
||
/* "VEN:DEV " */
|
||
u16_to_hex(line + p, vendor); p += 4;
|
||
line[p++] = ':';
|
||
u16_to_hex(line + p, device); p += 4;
|
||
line[p++] = ' ';
|
||
/* "rev NN " */
|
||
line[p++] = 'r'; line[p++] = 'e'; line[p++] = 'v';
|
||
line[p++] = ' ';
|
||
u8_to_hex(line + p, rev); p += 2;
|
||
line[p++] = ' ';
|
||
/* "class CC:SS:PP" */
|
||
line[p++] = 'c'; line[p++] = 'l'; line[p++] = 'a';
|
||
line[p++] = 's'; line[p++] = 's'; line[p++] = ' ';
|
||
u8_to_hex(line + p, class_code); p += 2;
|
||
line[p++] = ':';
|
||
u8_to_hex(line + p, subclass); p += 2;
|
||
line[p++] = ':';
|
||
u8_to_hex(line + p, prog_if); p += 2;
|
||
line[p++] = ' ';
|
||
line[p++] = '[';
|
||
const char *cn = pci_class_name(class_code);
|
||
while (*cn) line[p++] = *cn++;
|
||
line[p++] = ']';
|
||
const char *vn = pci_vendor_name(vendor);
|
||
if (*vn) {
|
||
line[p++] = ' ';
|
||
while (*vn) line[p++] = *vn++;
|
||
}
|
||
line[p] = 0;
|
||
term_puts(line);
|
||
term_putc('\n');
|
||
count++;
|
||
}
|
||
}
|
||
}
|
||
char tail[32];
|
||
int q = 0;
|
||
const char *prefix = "Total: ";
|
||
while (prefix[q]) { tail[q] = prefix[q]; q++; }
|
||
u8_to_dec(tail + q, (u8)(count > 255 ? 255 : count));
|
||
while (tail[q]) q++;
|
||
const char *suffix = " device(s)\n";
|
||
int s = 0;
|
||
while (suffix[s]) { tail[q++] = suffix[s++]; }
|
||
tail[q] = 0;
|
||
term_puts_color(tail, DIM_FG);
|
||
}
|
||
|
||
static u64 g_kernel_api = 0;
|
||
static const dsk_boot_context *g_boot_ctx = 0;
|
||
static const linux_compat_service *g_lxc_svc = 0;
|
||
|
||
/* ============================================================
|
||
* run 命令：从 FAT32 根目录加载并跳转 PIE ELF 工具
|
||
* ============================================================ */
|
||
|
||
#define SH_ELFCLASS64 2
|
||
#define SH_EM_X86_64 62
|
||
#define SH_PT_LOAD 1
|
||
#define SH_PT_DYNAMIC 2
|
||
#define SH_DT_RELA 7
|
||
#define SH_DT_RELASZ 8
|
||
#define SH_DT_RELAENT 9
|
||
#define SH_R_X86_64_RELATIVE 8
|
||
|
||
typedef struct { u8 ident[16]; u16 type,machine; u32 ver; u64 entry,phoff,shoff; u32 flags; u16 ehsize,phentsize,phnum,shentsize,shnum,shstrndx; } sh_elf64_ehdr;
|
||
typedef struct { u32 type,flags; u64 offset,vaddr,paddr,filesz,memsz,align; } sh_elf64_phdr;
|
||
typedef struct { i64 tag; u64 val; } sh_elf64_dyn;
|
||
typedef struct { u64 offset; u64 info; i64 addend; } sh_elf64_rela;
|
||
|
||
/* run 加载镜像缓冲（容纳工具 ELF 展开后的 memsz） */
|
||
static u8 g_run_image[262144];
|
||
|
||
static int sh_load_elf(u8 *data, void **entry_out) {
|
||
const sh_elf64_ehdr *eh = (const sh_elf64_ehdr *)data;
|
||
if (eh->ident[0] != 0x7F || eh->ident[4] != SH_ELFCLASS64) return -1;
|
||
if (eh->machine != SH_EM_X86_64) return -2;
|
||
u64 min_vaddr = ~0ULL, max_vaddr = 0;
|
||
u32 lc = 0;
|
||
for (u16 i = 0; i < eh->phnum; i++) {
|
||
const sh_elf64_phdr *ph = (const sh_elf64_phdr *)(data + eh->phoff + (u64)i * eh->phentsize);
|
||
if (ph->type != SH_PT_LOAD) continue;
|
||
if (ph->filesz > ph->memsz) return -3;
|
||
if (ph->vaddr < min_vaddr) min_vaddr = ph->vaddr;
|
||
if (ph->vaddr + ph->memsz > max_vaddr) max_vaddr = ph->vaddr + ph->memsz;
|
||
lc++;
|
||
}
|
||
if (!lc || min_vaddr == ~0ULL) return -4;
|
||
u64 isize = (max_vaddr - min_vaddr + 0xFFF) & ~0xFFFULL;
|
||
if (isize > sizeof(g_run_image)) return -5;
|
||
u8 *image = g_run_image;
|
||
for (u64 i = 0; i < isize; i++) image[i] = 0;
|
||
for (u16 i = 0; i < eh->phnum; i++) {
|
||
const sh_elf64_phdr *ph = (const sh_elf64_phdr *)(data + eh->phoff + (u64)i * eh->phentsize);
|
||
if (ph->type != SH_PT_LOAD) continue;
|
||
u64 off = ph->vaddr - min_vaddr;
|
||
for (u64 b = 0; b < ph->filesz; b++) image[off + b] = data[ph->offset + b];
|
||
}
|
||
*entry_out = image + (eh->entry - min_vaddr);
|
||
|
||
/* R_X86_64_RELATIVE 重定位 */
|
||
u64 load_bias = (u64)image - min_vaddr;
|
||
for (u16 i = 0; i < eh->phnum; i++) {
|
||
const sh_elf64_phdr *ph = (const sh_elf64_phdr *)(data + eh->phoff + (u64)i * eh->phentsize);
|
||
if (ph->type != SH_PT_DYNAMIC) continue;
|
||
const sh_elf64_dyn *dyn = (const sh_elf64_dyn *)(image + (ph->vaddr - min_vaddr));
|
||
u64 rela_off = 0, rela_sz = 0, rela_ent = 24;
|
||
for (; dyn->tag != 0; dyn++) {
|
||
if (dyn->tag == SH_DT_RELA) rela_off = dyn->val;
|
||
else if (dyn->tag == SH_DT_RELASZ) rela_sz = dyn->val;
|
||
else if (dyn->tag == SH_DT_RELAENT) rela_ent = dyn->val;
|
||
}
|
||
if (rela_off && rela_sz) {
|
||
u64 cnt = rela_sz / rela_ent;
|
||
for (u64 rr = 0; rr < cnt; rr++) {
|
||
const sh_elf64_rela *rel = (const sh_elf64_rela *)(image + (rela_off - min_vaddr) + rr * rela_ent);
|
||
if ((u32)(rel->info & 0xFFFFFFFF) == SH_R_X86_64_RELATIVE) {
|
||
u64 *slot = (u64 *)(image + (rel->offset - min_vaddr));
|
||
*slot = load_bias + (u64)rel->addend;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
/* run NAME.ELF — 加载根目录工具，全屏执行，返回后重绘 shell */
|
||
static void cmd_run(const char *args) {
|
||
if (!g_block_read) { term_puts_color("run: 无块设备\n", ERROR_FG); return; }
|
||
char fn[64];
|
||
parse_token(args, fn, 64);
|
||
if (fn[0] == 0) { term_puts_color("用法: run <NAME.ELF>\n", ERROR_FG); return; }
|
||
char n83[11];
|
||
if (name_to_83(fn, n83) != 0) { term_puts_color("run: 无效文件名\n", ERROR_FG); return; }
|
||
u8 *data = 0; u32 size = 0;
|
||
if (fat32_read_root_file(n83, &data, &size) != 0) {
|
||
term_puts_color("run: 文件不存在: ", ERROR_FG);
|
||
term_puts_color(fn, ERROR_FG);
|
||
term_putc('\n');
|
||
return;
|
||
}
|
||
void *entry = 0;
|
||
int rc = sh_load_elf(data, &entry);
|
||
if (rc != 0) {
|
||
term_puts_color("run: ELF 加载失败（无效格式或过大）\n", ERROR_FG);
|
||
return;
|
||
}
|
||
logl("[shell] run: jumping to tool");
|
||
void (*fn_entry)(const dsk_boot_context *) = (void (*)(const dsk_boot_context *))entry;
|
||
fn_entry(g_boot_ctx);
|
||
logl("[shell] run: tool returned");
|
||
/* 工具可能改动磁盘/显示状态：失效 FAT 缓存并重绘 */
|
||
g_disk_loaded = 0;
|
||
term_redraw_all();
|
||
}
|
||
|
||
/* ============================================================
|
||
* PATH 查找：在 /bin 子目录中搜索 name.ELF 并执行
|
||
* 返回 1 表示找到并已处理（成功或报错），0 表示未找到
|
||
* ============================================================ */
|
||
static int path_search_and_run(const char *name, const char *args) {
|
||
(void)args; /* 参数保留供未来扩展 */
|
||
if (!g_block_read) return 0;
|
||
|
||
/* 构造 "NAME.ELF" → 8.3 名 */
|
||
char full[64];
|
||
int nl = 0;
|
||
while (name[nl] && nl < 55) nl++;
|
||
int p = 0;
|
||
for (int i = 0; i < nl; i++) full[p++] = name[i];
|
||
full[p++] = '.'; full[p++] = 'E'; full[p++] = 'L';
|
||
full[p++] = 'F'; full[p] = 0;
|
||
char n83[11];
|
||
if (name_to_83(full, n83) != 0) return 0;
|
||
|
||
/* 获取 /bin 目录首簇 */
|
||
u32 bin_clus;
|
||
if (get_bin_cluster(&bin_clus) != 0) return 0;
|
||
|
||
/* 从 /bin 子目录读取 ELF */
|
||
u8 *data = 0; u32 size = 0;
|
||
if (fat32_read_file_in_dir(bin_clus, n83, &data, &size) != 0) return 0;
|
||
|
||
/* 加载 ELF */
|
||
void *entry = 0;
|
||
int rc = sh_load_elf(data, &entry);
|
||
if (rc != 0) {
|
||
term_puts_color(name, ERROR_FG);
|
||
term_puts_color(": ELF 加载失败\n", ERROR_FG);
|
||
return 1;
|
||
}
|
||
|
||
/* 执行 */
|
||
logl("[shell] path: running /bin/ tool");
|
||
void (*fn_entry)(const dsk_boot_context *) = (void (*)(const dsk_boot_context *))entry;
|
||
fn_entry(g_boot_ctx);
|
||
logl("[shell] path: tool returned");
|
||
g_disk_loaded = 0;
|
||
term_redraw_all();
|
||
return 1;
|
||
}
|
||
|
||
/* ============================================================
|
||
* linux 命令：通过双内核兼容层执行 Linux 程序
|
||
*
|
||
* 用法:
|
||
* linux 显示兼容层状态
|
||
* linux <prog> [args] 执行 /bin/<prog>（或完整路径）
|
||
* linux ls -la → 执行 /bin/ls -la
|
||
* linux uname -a → 执行 /bin/uname -a
|
||
*
|
||
* 依赖 UTSM+Linux 双内核架构: Linux guest 作为 daemon park 在 VMX
|
||
* guest 中,shell 通过 g_lxc_svc->exec 写 IPC 请求并 vmresume 唤醒。
|
||
* ============================================================ */
|
||
|
||
/* 简单 token 分词：将 args 按空格切分为 argv[]，返回 argc。
|
||
* 不支持引号转义（保持与 shell 其余部分一致的简单分词）。 */
|
||
static int split_args(const char *args, char argv[16][64], int max_argc) {
|
||
int argc = 0;
|
||
const char *p = args;
|
||
while (*p && argc < max_argc) {
|
||
while (*p == ' ') p++;
|
||
if (*p == 0) break;
|
||
int len = 0;
|
||
while (*p && *p != ' ' && len < 63) {
|
||
argv[argc][len++] = *p++;
|
||
}
|
||
argv[argc][len] = 0;
|
||
argc++;
|
||
}
|
||
return argc;
|
||
}
|
||
|
||
static void cmd_linux(const char *args) {
|
||
if (!g_lxc_svc) {
|
||
term_puts_color("linux: 兼容层服务未初始化（boot context 未提供）\n", ERROR_FG);
|
||
return;
|
||
}
|
||
if (!g_lxc_svc->is_available()) {
|
||
term_puts_color("linux: 兼容层不可用（Linux guest 未驻留或 IPC 未就绪）\n", ERROR_FG);
|
||
char status[128];
|
||
g_lxc_svc->status(status, sizeof(status));
|
||
term_puts_color(status, ERROR_FG);
|
||
term_putc('\n');
|
||
return;
|
||
}
|
||
|
||
/* 无参数：显示状态 */
|
||
while (*args == ' ') args++;
|
||
if (*args == 0) {
|
||
term_puts_color("Linux 兼容层已就绪 (双内核 park-and-resume)\n", OK_FG);
|
||
term_puts_color("用法: linux <程序> [参数...]\n", DIM_FG);
|
||
term_puts_color("示例: linux ls -la / linux uname -a / linux cat /etc/hostname\n", DIM_FG);
|
||
return;
|
||
}
|
||
|
||
/* 分词参数 */
|
||
char argv_buf[16][64];
|
||
int argc = split_args(args, argv_buf, 16);
|
||
if (argc == 0) {
|
||
term_puts_color("linux: 参数解析失败\n", ERROR_FG);
|
||
return;
|
||
}
|
||
|
||
/* 构造程序路径：
|
||
* - 以 '/' 开头视为绝对路径
|
||
* - 否则前缀 "/bin/" */
|
||
char path[160];
|
||
const char *prog = argv_buf[0];
|
||
if (prog[0] == '/') {
|
||
int i = 0;
|
||
while (prog[i] && i < 159) { path[i] = prog[i]; i++; }
|
||
path[i] = 0;
|
||
} else {
|
||
const char *prefix = "/bin/";
|
||
int i = 0;
|
||
while (prefix[i]) { path[i] = prefix[i]; i++; }
|
||
int j = 0;
|
||
while (prog[j] && i < 159) { path[i++] = prog[j++]; }
|
||
path[i] = 0;
|
||
}
|
||
|
||
/* 构造 argv 指针数组（argv[0] = 程序名） */
|
||
const char *argv_ptrs[16];
|
||
argv_ptrs[0] = prog; /* argv[0] 用程序名（不带 /bin/ 前缀） */
|
||
for (int i = 1; i < argc; i++) argv_ptrs[i] = argv_buf[i];
|
||
|
||
/* 执行：stdout 缓冲区 */
|
||
static char stdout_buf[8192];
|
||
u64 stdout_len = 0;
|
||
u64 exit_code = 0;
|
||
|
||
logl("[shell] linux: exec ");
|
||
logl(path);
|
||
int rc = g_lxc_svc->exec(path, argc, argv_ptrs,
|
||
stdout_buf, sizeof(stdout_buf) - 1,
|
||
&stdout_len, &exit_code);
|
||
|
||
if (rc != 0) {
|
||
term_puts_color("linux: 执行失败 (code=", ERROR_FG);
|
||
char num[16];
|
||
int neg = rc < 0;
|
||
unsigned int v = neg ? (unsigned int)(-rc) : (unsigned int)rc;
|
||
int n = 0;
|
||
if (v == 0) num[n++] = '0';
|
||
while (v) { num[n++] = '0' + (v % 10); v /= 10; }
|
||
if (neg) term_putc('-');
|
||
for (int i = n - 1; i >= 0; i--) term_putc(num[i]);
|
||
term_puts_color(")\n", ERROR_FG);
|
||
return;
|
||
}
|
||
|
||
/* 输出 stdout */
|
||
if (stdout_len > 0) {
|
||
stdout_buf[stdout_len] = 0;
|
||
term_puts(stdout_buf);
|
||
/* 确保末尾换行 */
|
||
if (stdout_buf[stdout_len - 1] != '\n') {
|
||
term_putc('\n');
|
||
}
|
||
}
|
||
|
||
/* 非零退出码提示 */
|
||
if (exit_code != 0) {
|
||
term_puts_color("[exit ", DIM_FG);
|
||
char ec[16];
|
||
unsigned int ev = (unsigned int)exit_code;
|
||
int en = 0;
|
||
if (ev == 0) ec[en++] = '0';
|
||
while (ev) { ec[en++] = '0' + (ev % 10); ev /= 10; }
|
||
for (int i = en - 1; i >= 0; i--) term_putc(ec[i]);
|
||
term_puts_color("]\n", DIM_FG);
|
||
}
|
||
}
|
||
|
||
static void execute_command(const char *cmd) {
|
||
while (*cmd == ' ') cmd++;
|
||
if (*cmd == 0) return;
|
||
const char *args = cmd;
|
||
while (*args && *args != ' ') args++;
|
||
int cmd_name_len = (int)(args - cmd);
|
||
char name[32];
|
||
if (cmd_name_len >= 32) cmd_name_len = 31;
|
||
for (int i = 0; i < cmd_name_len; i++) name[i] = cmd[i];
|
||
name[cmd_name_len] = 0;
|
||
while (*args == ' ') args++;
|
||
if (str_eq(name, "help") || str_eq(name, "?")) cmd_help();
|
||
else if (str_eq(name, "version") || str_eq(name, "ver")) cmd_version();
|
||
else if (str_eq(name, "uname")) cmd_uname();
|
||
else if (str_eq(name, "about")) cmd_about();
|
||
else if (str_eq(name, "clear") || str_eq(name, "cls")) cmd_clear();
|
||
else if (str_eq(name, "reboot")) cmd_reboot();
|
||
else if (str_eq(name, "halt") || str_eq(name, "shutdown")) cmd_halt();
|
||
else if (str_eq(name, "echo")) cmd_echo(args);
|
||
else if (str_eq(name, "date") || str_eq(name, "time")) cmd_date();
|
||
else if (str_eq(name, "ls") || str_eq(name, "dir")) cmd_ls();
|
||
else if (str_eq(name, "pci")) cmd_pci();
|
||
else if (str_eq(name, "cat")) cmd_cat(args);
|
||
else if (str_eq(name, "cp")) cmd_cp(args);
|
||
else if (str_eq(name, "mv")) cmd_mv(args);
|
||
else if (str_eq(name, "rm") || str_eq(name, "del")) cmd_rm(args);
|
||
else if (str_eq(name, "run")) cmd_run(args);
|
||
else if (str_eq(name, "linux")) cmd_linux(args);
|
||
else if (str_eq(name, "cd")) cmd_not_impl("cd");
|
||
else if (str_eq(name, "pwd")) { term_puts("/\n"); }
|
||
else if (str_eq(name, "whoami")) { term_puts("root\n"); }
|
||
else if (str_eq(name, "id")) { term_puts("uid=0(root) gid=0(root)\n"); }
|
||
/* ---- PATH 查找：未匹配内建时搜索 /bin/ ---- */
|
||
else if (!path_search_and_run(name, args)) {
|
||
cmd_unknown(name);
|
||
}
|
||
}
|
||
|
||
/* ---- CMOS RTC 读取 ---- */
|
||
static u8 read_rtc_reg(u8 reg) {
|
||
outb(0x70, reg);
|
||
return inb(0x71);
|
||
}
|
||
|
||
static u8 bcd_to_bin_impl(u8 bcd) {
|
||
return (u8)((bcd >> 4) * 10 + (bcd & 0x0F));
|
||
}
|
||
|
||
/* ---- 提示符 ---- */
|
||
static const char *PROMPT = "deshab# ";
|
||
|
||
static void draw_prompt(void) {
|
||
term_puts_color(PROMPT, PROMPT_FG);
|
||
}
|
||
|
||
/* ---- 输入行编辑 ---- */
|
||
static void redraw_input_line(void) {
|
||
int prompt_len = 0;
|
||
while (PROMPT[prompt_len]) prompt_len++;
|
||
i64 y = term_start_y + (i64)cur_row * (i64)DU_ASCII_LINE_H;
|
||
du_fill_rect(&g_ctx, term_start_x, y,
|
||
(i64)term_w * (i64)DU_ASCII_STEP,
|
||
(i64)DU_ASCII_CELL_H, BG_COLOR);
|
||
for (int i = 0; i < prompt_len; i++) {
|
||
i64 x = term_start_x + (i64)i * (i64)DU_ASCII_STEP;
|
||
du_draw_char(&g_ctx, PROMPT[i], x, y, PROMPT_FG, BG_COLOR);
|
||
}
|
||
for (int i = 0; i < input_len; i++) {
|
||
i64 x = term_start_x + (i64)(prompt_len + i) * (i64)DU_ASCII_STEP;
|
||
du_draw_char(&g_ctx, input_buf[i], x, y, TEXT_FG, BG_COLOR);
|
||
}
|
||
cur_col = prompt_len + input_cursor;
|
||
term_redraw_cursor();
|
||
}
|
||
|
||
static void insert_char(char c) {
|
||
if (input_len >= 255) return;
|
||
for (int i = input_len; i > input_cursor; i--) {
|
||
input_buf[i] = input_buf[i-1];
|
||
}
|
||
input_buf[input_cursor] = c;
|
||
input_len++;
|
||
input_cursor++;
|
||
redraw_input_line();
|
||
}
|
||
|
||
static void delete_char_back(void) {
|
||
if (input_cursor == 0) return;
|
||
for (int i = input_cursor - 1; i < input_len - 1; i++) {
|
||
input_buf[i] = input_buf[i+1];
|
||
}
|
||
input_len--;
|
||
input_cursor--;
|
||
input_buf[input_len] = 0;
|
||
redraw_input_line();
|
||
}
|
||
|
||
static void delete_char_fwd(void) {
|
||
if (input_cursor >= input_len) return;
|
||
for (int i = input_cursor; i < input_len - 1; i++) {
|
||
input_buf[i] = input_buf[i+1];
|
||
}
|
||
input_len--;
|
||
input_buf[input_len] = 0;
|
||
redraw_input_line();
|
||
}
|
||
|
||
static void cursor_left(void) {
|
||
if (input_cursor > 0) {
|
||
input_cursor--;
|
||
term_clear_cursor();
|
||
cur_col--;
|
||
if (cur_col < 0) { cur_col = term_w - 1; cur_row--; }
|
||
term_redraw_cursor();
|
||
}
|
||
}
|
||
|
||
static void cursor_right(void) {
|
||
if (input_cursor < input_len) {
|
||
input_cursor++;
|
||
term_clear_cursor();
|
||
cur_col++;
|
||
if (cur_col >= term_w) { cur_col = 0; cur_row++; }
|
||
term_redraw_cursor();
|
||
}
|
||
}
|
||
|
||
static void cursor_home(void) {
|
||
term_clear_cursor();
|
||
int prompt_len = 0;
|
||
while (PROMPT[prompt_len]) prompt_len++;
|
||
cur_col = prompt_len;
|
||
input_cursor = 0;
|
||
term_redraw_cursor();
|
||
}
|
||
|
||
static void cursor_end(void) {
|
||
term_clear_cursor();
|
||
int prompt_len = 0;
|
||
while (PROMPT[prompt_len]) prompt_len++;
|
||
cur_col = prompt_len + input_len;
|
||
input_cursor = input_len;
|
||
term_redraw_cursor();
|
||
}
|
||
|
||
static void kill_to_end(void) {
|
||
input_len = input_cursor;
|
||
input_buf[input_len] = 0;
|
||
redraw_input_line();
|
||
}
|
||
|
||
static void kill_line(void) {
|
||
input_len = 0;
|
||
input_cursor = 0;
|
||
input_buf[0] = 0;
|
||
redraw_input_line();
|
||
}
|
||
|
||
/* 开发者模式:自动测试命令序列（ls/echo>/cat/cp/mv/rm）
|
||
* 由 DSK 在 firstInit.txt 第二行=1 时触发，reserved[3]=1 */
|
||
static void run_dev_tests(void) {
|
||
term_puts_color("=== 开发者模式:自动测试命令 ===\n", PROMPT_FG);
|
||
term_putc('\n');
|
||
|
||
term_puts_color("[1] ls — 列出根目录\n", ACCENT_FG);
|
||
cmd_ls();
|
||
term_putc('\n');
|
||
|
||
term_puts_color("[2] echo \"Deshab dev test\" > TEST.TXT\n", ACCENT_FG);
|
||
cmd_echo("Deshab dev test > TEST.TXT");
|
||
|
||
term_puts_color("[3] cat TEST.TXT — 读回验证\n", ACCENT_FG);
|
||
cmd_cat("TEST.TXT");
|
||
term_putc('\n');
|
||
|
||
term_puts_color("[4] cp TEST.TXT COPY.TXT\n", ACCENT_FG);
|
||
cmd_cp("TEST.TXT COPY.TXT");
|
||
|
||
term_puts_color("[5] ls — 确认复制\n", ACCENT_FG);
|
||
cmd_ls();
|
||
term_putc('\n');
|
||
|
||
term_puts_color("[6] mv COPY.TXT MOVED.TXT\n", ACCENT_FG);
|
||
cmd_mv("COPY.TXT MOVED.TXT");
|
||
|
||
term_puts_color("[7] ls — 确认移动\n", ACCENT_FG);
|
||
cmd_ls();
|
||
term_putc('\n');
|
||
|
||
term_puts_color("[8] rm TEST.TXT\n", ACCENT_FG);
|
||
cmd_rm("TEST.TXT");
|
||
term_puts_color("[9] rm MOVED.TXT — 清理\n", ACCENT_FG);
|
||
cmd_rm("MOVED.TXT");
|
||
|
||
term_puts_color("[10] ls — 确认清理\n", ACCENT_FG);
|
||
cmd_ls();
|
||
|
||
term_puts_color("[11] ping — 外部命令（/bin/ping.elf），跳过内联测试\n", ACCENT_FG);
|
||
|
||
term_putc('\n');
|
||
term_puts_color("=== 自动测试完成 ===\n", OK_FG);
|
||
term_puts_color("按 Esc 返回 DSK，或继续输入命令\n", DIM_FG);
|
||
term_putc('\n');
|
||
}
|
||
|
||
/* ---- 主入口 ---- */
|
||
__attribute__((visibility("default")))
|
||
void dsk_entry(const dsk_boot_context *ctx) {
|
||
__asm__ volatile("cli");
|
||
logl("[shell] boot");
|
||
|
||
if (!ctx || ctx->magic != 0x44534B31424F4F54ULL) {
|
||
logl("[shell] bad context");
|
||
for(;;) __asm__("hlt");
|
||
}
|
||
|
||
fb_a = ctx->framebuffer_address;
|
||
fb_w = ctx->framebuffer_width;
|
||
fb_h = ctx->framebuffer_height;
|
||
fb_p = ctx->framebuffer_pitch;
|
||
|
||
/* 保存 boot 上下文（网络协议栈/run 命令使用） */
|
||
g_kernel_api = ctx->dkm_kernel_api;
|
||
g_boot_ctx = ctx;
|
||
|
||
/* 获取 block 设备 read/write（从 kernel_api + 0xA8 → block_api → +16/+24） */
|
||
{
|
||
u64 api = ctx->dkm_kernel_api;
|
||
u64 blk = *(u64 *)(api + 0xA8);
|
||
g_block_read = blk ? (shell_block_read_fn)*(u64 *)(blk + 16) : 0;
|
||
g_block_write = blk ? (shell_block_write_fn)*(u64 *)(blk + 24) : 0;
|
||
}
|
||
if (g_block_read) logl("[shell] block_read ok");
|
||
if (g_block_write) logl("[shell] block_write ok");
|
||
|
||
/* 获取 Linux 兼容层服务（reserved[5]）—— 双内核 park-and-resume */
|
||
{
|
||
u64 lxc_addr = ctx->reserved[5];
|
||
if (lxc_addr) {
|
||
const linux_compat_service *lxc = (const linux_compat_service *)lxc_addr;
|
||
if (lxc->magic == LINUX_COMPAT_MAGIC) {
|
||
g_lxc_svc = lxc;
|
||
logl("[shell] linux_compat service ok");
|
||
} else {
|
||
logl("[shell] linux_compat magic mismatch");
|
||
}
|
||
} else {
|
||
logl("[shell] linux_compat service not available");
|
||
}
|
||
}
|
||
|
||
/* 初始化风格系统渲染上下文 */
|
||
du_context_init(&g_ctx, fb_a, fb_w, fb_h, fb_p);
|
||
|
||
term_init_pos();
|
||
term_clear();
|
||
term_redraw_all();
|
||
|
||
/* 启动 banner — 使用风格令牌 */
|
||
term_puts_color("=== Deshab OS v0.1.0 ===\n", ACCENT_FG);
|
||
if (ctx->reserved[3] == 1)
|
||
term_puts_color("开发者模式 (自动测试命令)\n", OK_FG);
|
||
else
|
||
term_puts_color("欢迎使用 Deshab Shell\n", OK_FG);
|
||
term_puts_color("输入 'help' 查看可用命令\n", DIM_FG);
|
||
term_putc('\n');
|
||
|
||
/* 开发者模式:DSK 设 reserved[3]=1 时自动跑命令测试序列 */
|
||
if (ctx->reserved[3] == 1) {
|
||
g_serial_mirror = 1;
|
||
run_dev_tests();
|
||
}
|
||
|
||
/* 将 banner + dev test 输出刷新到 framebuffer */
|
||
term_redraw_all();
|
||
|
||
/* 主循环 */
|
||
int shift = 0;
|
||
int e0 = 0;
|
||
u64 blink_start = rdtsc_shell();
|
||
for (;;) {
|
||
draw_prompt();
|
||
input_len = 0;
|
||
input_cursor = 0;
|
||
input_buf[0] = 0;
|
||
int prompt_len = 0;
|
||
while (PROMPT[prompt_len]) prompt_len++;
|
||
cur_col = prompt_len;
|
||
cur_visible = 1;
|
||
redraw_input_line();
|
||
|
||
int cmd_done = 0;
|
||
while (!cmd_done) {
|
||
/* 光标闪烁：每 ~530ms 切换一次可见性 */
|
||
if (g_tsc_per_ms) {
|
||
u64 now = rdtsc_shell();
|
||
u64 elapsed = now - blink_start;
|
||
int want_vis = (elapsed / (g_tsc_per_ms * 530)) & 1;
|
||
if (want_vis != cur_visible) {
|
||
if (want_vis) term_redraw_cursor();
|
||
else term_clear_cursor();
|
||
cur_visible = want_vis;
|
||
}
|
||
}
|
||
u8 st = inb(0x64);
|
||
if (!(st & 1)) { __asm__("pause"); continue; }
|
||
u8 data = inb(0x60);
|
||
if (st & 0x20) continue;
|
||
u8 sc = data;
|
||
/* 有键盘输入时重置闪烁，让光标保持可见 */
|
||
blink_start = rdtsc_shell();
|
||
if (!cur_visible) { cur_visible = 1; term_redraw_cursor(); }
|
||
if (sc == 0xE0) { e0 = 1; continue; }
|
||
if (sc == 0x2A || sc == 0x36) { shift = 1; continue; }
|
||
if (sc == 0xAA || sc == 0xB6) { shift = 0; continue; }
|
||
if (sc & 0x80) {
|
||
if (e0 && sc == 0x9C) { e0 = 0; }
|
||
else if (e0 && sc == 0xCB) { e0 = 0; }
|
||
else if (e0 && sc == 0xCD) { e0 = 0; }
|
||
else if (e0 && sc == 0xC8) { e0 = 0; }
|
||
else if (e0 && sc == 0xD0) { e0 = 0; }
|
||
else if (e0 && sc == 0xD3) { e0 = 0; }
|
||
else if (e0 && sc == 0xC7) { e0 = 0; }
|
||
else if (e0 && sc == 0xCF) { e0 = 0; }
|
||
e0 = 0;
|
||
continue;
|
||
}
|
||
if (e0) {
|
||
if (sc == 0x4B) cursor_left();
|
||
else if (sc == 0x4D) cursor_right();
|
||
else if (sc == 0x47) cursor_home();
|
||
else if (sc == 0x4F) cursor_end();
|
||
else if (sc == 0x53) delete_char_fwd();
|
||
else if (sc == 0x48) { history_prev(); }
|
||
else if (sc == 0x50) { history_next(); }
|
||
e0 = 0;
|
||
continue;
|
||
}
|
||
if (sc == 0x1C) {
|
||
term_clear_cursor();
|
||
input_buf[input_len] = 0;
|
||
/* 提交命令前先入历史; 执行后再清空输入 */
|
||
history_push(input_buf);
|
||
g_history_view = -1;
|
||
term_putc('\n');
|
||
execute_command(input_buf);
|
||
/* 确保命令输出后在新行绘制提示符 */
|
||
if (cur_col != 0) {
|
||
term_putc('\n');
|
||
}
|
||
/* 刷新终端显示 */
|
||
term_redraw_all();
|
||
input_len = 0;
|
||
input_cursor = 0;
|
||
input_buf[0] = 0;
|
||
cmd_done = 1;
|
||
continue;
|
||
}
|
||
if (sc == 0x0E) { delete_char_back(); continue; }
|
||
if (sc == 0x01) { logl("[shell] esc -> return to DSK"); return; }
|
||
if (sc == 0x15 && !shift) { kill_line(); continue; }
|
||
if (sc == 0x17 && !shift) { while (input_cursor > 0) delete_char_back(); continue; }
|
||
if (sc == 0x0B && !shift) { kill_to_end(); continue; }
|
||
char c = scan_to_ascii(sc, shift);
|
||
if (c && c >= 32 && c <= 126) {
|
||
insert_char(c);
|
||
}
|
||
}
|
||
}
|
||
}
|