文件系统修复

build.py

@@ -1,7 +1,7 @@
 import os
 import sys
 
-gcc = '/i686_elf_tools/bin/i686-elf-gcc.exe -std=gnu99 -I include/ -std=gnu99 -ffreestanding -O2 -c -Wincompatible-pointer-types'
+gcc = '/i686_elf_tools/bin/i686-elf-gcc.exe -w -std=gnu99 -I include/ -std=gnu99 -ffreestanding -O0 -c -Wincompatible-pointer-types'
 asm = '/i686_elf_tools/bin/i686-elf-as.exe'
 nasm = "nasm -f elf32"
 ld = '/i686_elf_tools/bin/i686-elf-ld.exe'
@@ -127,7 +127,7 @@ print("Launching i386 vm...")
 
 if len(sys.argv) == 0 or sys.argv[1] == 'vga':
     print("Graphics MODE [VGA]")
-    os.system("qemu-system-i386 -net nic,model=pcnet -net user -kernel isodir\\sys\\kernel.elf -drive format=qcow2,file=cpos.qcow2")
+    os.system("qemu-system-i386 -net nic,model=pcnet -net user -kernel isodir\\sys\\kernel.elf -hda diskx.img")
 elif sys.argv[1] == 'vbe':
     print("Graphics MODE [VBE]")
-    os.system("qemu-system-i386 -vga std -net nic,model=pcnet -net user -kernel isodir\\sys\\kernel.elf -drive format=qcow2,file=cpos.qcow2")
+    os.system("qemu-system-i386 -vga std -net nic,model=pcnet -net user -kernel isodir\\sys\\kernel.elf -hda diskx.img")

driver/ide.c

@@ -8,7 +8,6 @@
 static inline nul(char *f, ...) {}
 
 #define logk nul
-
 #define inb io_in8
 #define outb io_out8
 
@@ -46,12 +45,134 @@ static inline void insl(uint32_t port, uint32_t *addr, int cnt) {
 
 static void Read(char drive, unsigned char *buffer, unsigned int number,
                  unsigned int lba) {
-    ide_read_sectors(drive - 'C', number, lba, 1 * 8, buffer);
+    ide_read_sectors(drive - 'A', number, lba, 1 * 8, buffer);
 }
 
 static void Write(char drive, unsigned char *buffer, unsigned int number,
                   unsigned int lba) {
-    ide_write_sectors(drive - 'C', number, lba, 1 * 8, buffer);
+    ide_write_sectors(drive - 'A', number, lba, 1 * 8, buffer);
+}
+
+void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
+                    unsigned int BAR3, unsigned int BAR4) {
+    int j, k, count = 0;
+    for (int i = 0; i < 4; i++) {
+        ide_devices[i].Reserved = 0;
+    }
+    // 1- Detect I/O Ports which interface IDE Controller:
+    channels[ATA_PRIMARY].base = (BAR0 & 0xFFFFFFFC) + 0x1F0 * (!BAR0);
+    channels[ATA_PRIMARY].ctrl = (BAR1 & 0xFFFFFFFC) + 0x3F6 * (!BAR1);
+    channels[ATA_SECONDARY].base = (BAR2 & 0xFFFFFFFC) + 0x170 * (!BAR2);
+    channels[ATA_SECONDARY].ctrl = (BAR3 & 0xFFFFFFFC) + 0x376 * (!BAR3);
+    channels[ATA_PRIMARY].bmide = (BAR4 & 0xFFFFFFFC) + 0;   // Bus Master IDE
+    channels[ATA_SECONDARY].bmide = (BAR4 & 0xFFFFFFFC) + 8; // Bus Master IDE
+    // 2- Disable IRQs:
+    ide_write(ATA_PRIMARY, ATA_REG_CONTROL, 2);
+    ide_write(ATA_SECONDARY, ATA_REG_CONTROL, 2);
+    logk("w1\n");
+    // 3- Detect ATA-ATAPI Devices:
+    for (int i = 0; i < 2; i++)
+        for (j = 0; j < 2; j++) {
+            unsigned char err = 0, type = IDE_ATA, status;
+            ide_devices[count].Reserved = 0; // Assuming that no drive here.
+
+            // (I) Select Drive:
+            ide_write(i, ATA_REG_HDDEVSEL, 0xA0 | (j << 4)); // Select Drive.
+            sleep(1); // Wait 1ms for drive select to work.
+            logk("I\n");
+            // (II) Send ATA Identify Command:
+            ide_write(i, ATA_REG_COMMAND, ATA_CMD_IDENTIFY);
+            sleep(1); // This function should be implemented in your OS. which waits
+            // for 1 ms. it is based on System Timer Device Driver.
+            logk("II\n");
+            // (III) Polling:
+            if (ide_read(i, ATA_REG_STATUS) == 0)
+                continue; // If Status = 0, No Device.
+            logk("III\n");
+            while (1) {
+                logk("read ide....\n");
+                status = ide_read(i, ATA_REG_STATUS);
+                logk("read ok\n");
+                if ((status & ATA_SR_ERR)) {
+                    err = 1;
+                    break;
+                } // If Err, Device is not ATA.
+                if (!(status & ATA_SR_BSY) && (status & ATA_SR_DRQ))
+                    break; // Everything is right.
+            }
+
+            // (IV) Probe for ATAPI Devices:
+            logk("IV\n");
+            if (err != 0) {
+                unsigned char cl = ide_read(i, ATA_REG_LBA1);
+                unsigned char ch = ide_read(i, ATA_REG_LBA2);
+
+                if (cl == 0x14 && ch == 0xEB)
+                    type = IDE_ATAPI;
+                else if (cl == 0x69 && ch == 0x96)
+                    type = IDE_ATAPI;
+                else
+                    continue; // Unknown Type (may not be a device).
+
+                ide_write(i, ATA_REG_COMMAND, ATA_CMD_IDENTIFY_PACKET);
+                sleep(1);
+            }
+
+            // (V) Read Identification Space of the Device:
+            logk("V\n");
+            ide_read_buffer(i, ATA_REG_DATA, (unsigned int) ide_buf, 128);
+
+            // (VI) Read Device Parameters:
+            logk("VI\n");
+            ide_devices[count].Reserved = 1;
+            ide_devices[count].Type = type;
+            ide_devices[count].Channel = i;
+            ide_devices[count].Drive = j;
+            ide_devices[count].Signature =
+                    *((unsigned short *) (ide_buf + ATA_IDENT_DEVICETYPE));
+            ide_devices[count].Capabilities =
+                    *((unsigned short *) (ide_buf + ATA_IDENT_CAPABILITIES));
+            ide_devices[count].CommandSets =
+                    *((unsigned int *) (ide_buf + ATA_IDENT_COMMANDSETS));
+
+            // (VII) Get Size:
+            logk("VII\n");
+            if (ide_devices[count].CommandSets & (1 << 26))
+                // Device uses 48-Bit Addressing:
+                ide_devices[count].Size =
+                        *((unsigned int *) (ide_buf + ATA_IDENT_MAX_LBA_EXT));
+            else
+                // Device uses CHS or 28-bit Addressing:
+                ide_devices[count].Size =
+                        *((unsigned int *) (ide_buf + ATA_IDENT_MAX_LBA));
+
+            // (VIII) String indicates model of device (like Western Digital HDD and
+            // SONY DVD-RW...):
+            logk("VIII\n");
+            for (k = 0; k < 40; k += 2) {
+                ide_devices[count].Model[k] = ide_buf[ATA_IDENT_MODEL + k + 1];
+                ide_devices[count].Model[k + 1] = ide_buf[ATA_IDENT_MODEL + k];
+            }
+            ide_devices[count].Model[40] = 0; // Terminate String.
+
+            count++;
+        }
+
+    // 4- Print Summary:
+    vdisk vd;
+    for (int i = 0; i < 4; i++)
+        if (ide_devices[i].Reserved == 1) {
+            logk(" %d Found %s Drive %dMB - %s\n", i,
+                 (const char *[]) {"ATA", "ATAPI"}[ide_devices[i].Type], /* Type */
+                    ide_devices[i].Size / 1024 / 2,                        /* Size */
+                    ide_devices[i].Model);
+            strcpy(vd.DriveName, ide_devices[i].Model);
+            vd.flag = 1;
+            vd.Read = Read;
+            vd.Write = Write;
+            vd.size = ide_devices[i].Size;
+            printf("[Disk-(%c)]: Size: %dMB | Name: %s\n", register_vdisk(vd), vd.size, vd.DriveName);
+        }
 }
 
 unsigned char ide_read(unsigned char channel, unsigned char reg) {
@@ -70,6 +191,7 @@ unsigned char ide_read(unsigned char channel, unsigned char reg) {
         ide_write(channel, ATA_REG_CONTROL, channels[channel].nIEN);
     return result;
 }
+
 void ide_write(unsigned char channel, unsigned char reg, unsigned char data) {
     if (reg > 0x07 && reg < 0x0C)
         ide_write(channel, ATA_REG_CONTROL, 0x80 | channels[channel].nIEN);
@@ -84,6 +206,7 @@ void ide_write(unsigned char channel, unsigned char reg, unsigned char data) {
     if (reg > 0x07 && reg < 0x0C)
         ide_write(channel, ATA_REG_CONTROL, channels[channel].nIEN);
 }
+
 void ide_read_buffer(unsigned char channel, unsigned char reg,
                      unsigned int buffer, unsigned int quads) {
     /* WARNING: This code contains a serious bug. The inline assembly trashes ES
@@ -105,6 +228,7 @@ void ide_read_buffer(unsigned char channel, unsigned char reg,
     if (reg > 0x07 && reg < 0x0C)
         ide_write(channel, ATA_REG_CONTROL, channels[channel].nIEN);
 }
+
 unsigned char ide_polling(unsigned char channel, unsigned int advanced_check) {
     // (I) Delay 400 nanosecond for BSY to be set:
     // -------------------------------------------------
@@ -119,7 +243,7 @@ unsigned char ide_polling(unsigned char channel, unsigned int advanced_check) {
     while (a & ATA_SR_BSY) {
         logk("a=%d\n", a & ATA_SR_BSY); // Wait for BSY to be zero.
         a = ide_read(channel, ATA_REG_STATUS);
-        clock_sleep(1);
+        sleep(1);
     }
     logk("II OK\n");
     if (advanced_check) {
@@ -317,26 +441,25 @@ unsigned char ide_ata_access(unsigned char direction, unsigned char drive,
     ide_write(channel, ATA_REG_COMMAND, cmd); // Send the Command.
     logk("IV1\n");
     if (dma)
-        if (direction == 0)
+        if (direction == 0);
-            ;
             // DMA Read.
-        else
+        else;
-            ;
         // DMA Write.
     else if (direction == 0) {
         // PIO Read.
         uint16_t *word_ = edi;
         for (i = 0; i < numsects; i++) {
-            logk("read %d\n", i);
+           // printf("read %d\n", i);
             if (err = ide_polling(channel, 1))
                 return err; // Polling, set error and exit if there is.
 
             logk("words=%d bus=%d\n", words, bus);
-            // for (int h = 0; h < words; h++) {
+            for (int h = 0; h < words; h++) {
-            //   unsigned short a = io_in16(bus);
+              unsigned short a = io_in16(bus);
-            //   word_[i * words + h] = a;
+               word_[i * words + h] = a;
-            // }
+              // printf("%04x ",a);
-            insl(bus, word_ + i * words, words / 2);
+             }
+            //insl(bus, word_ + i * words, words / 2);
         }
     } else {
         // PIO Write.
@@ -360,11 +483,12 @@ unsigned char ide_ata_access(unsigned char direction, unsigned char drive,
 
     return 0; // Easy, isn't it?
 }
+
 void ide_wait_irq() {
-    while (!ide_irq_invoked)
+    while (!ide_irq_invoked);
-        ;
     ide_irq_invoked = 0;
 }
+
 void ide_irq() {
     logk("ide irq.\n");
     ide_irq_invoked = 1;
@@ -403,8 +527,7 @@ unsigned char ide_atapi_read(unsigned char drive, unsigned int lba,
     ide_write(channel, ATA_REG_HDDEVSEL, slavebit << 4);
     logk("II\n");
     // (III): Delay 400 nanoseconds for select to complete:
-    for (int i = 0; i < 4000; i++)
+    for (int i = 0; i < 4000; i++);
-        ;
     logk("III\n");
     // ------------------------------------------------------------------
     logk("IV\n");
@@ -459,11 +582,11 @@ unsigned char ide_atapi_read(unsigned char drive, unsigned int lba,
 
     // (XI): Waiting for BSY & DRQ to clear:
     // ------------------------------------------------------------------
-    while (ide_read(channel, ATA_REG_STATUS) & (ATA_SR_BSY | ATA_SR_DRQ))
+    while (ide_read(channel, ATA_REG_STATUS) & (ATA_SR_BSY | ATA_SR_DRQ));
-        ;
 
     return 0; // Easy, ... Isn't it?
 }
+
 void ide_read_sectors(unsigned char drive, unsigned char numsects,
                       unsigned int lba, unsigned short es, unsigned int edi) {
     // 1: Check if the drive presents:
@@ -491,7 +614,7 @@ void ide_read_sectors(unsigned char drive, unsigned char numsects,
         package[0] = ide_print_error(drive, err);
     }
 }
-// package[0] is an entry of an array. It contains the Error Code.
+
 void ide_write_sectors(unsigned char drive, unsigned char numsects,
                        unsigned int lba, unsigned short es, unsigned int edi) {
     // 1: Check if the drive presents:
@@ -585,151 +708,3 @@ void ide_atapi_eject(unsigned char drive) {
         package[0] = ide_print_error(drive, err); // Return;
     }
 }
-
-void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
-                    unsigned int BAR3, unsigned int BAR4) {
-    int i1, j1, k1;
-    int flag = 0;
-    for (i1 = 0; i1 < 255; i1++) {
-        for (j1 = 0; j1 < 32; j1++) {
-            for (k1 = 0; k1 < 8; k1++) {
-                uint32_t p = read_pci(i1, j1, k1, 0x8);
-                uint16_t *reg =
-                        &p; // reg[0] ---> P & R, reg[1] ---> Sub Class Class Code
-                uint8_t *codes =
-                        &(reg[1]); // codes[0] --> Sub Class Code  codes[1] Class Code
-                if (codes[1] == 0x1 && codes[0] == 0x1) {
-                    flag = 1;
-                    goto OK;
-                }
-            }
-        }
-    }
-    OK:
-    if (flag == 0) {
-        return;
-    }
-    BAR0 = read_bar_n(i1, j1, k1, 0);
-    BAR1 = read_bar_n(i1, j1, k1, 1);
-    BAR2 = read_bar_n(i1, j1, k1, 2);
-    BAR3 = read_bar_n(i1, j1, k1, 3);
-    BAR4 = read_bar_n(i1, j1, k1, 4);
-    int j, k, count = 0;
-    for (int i = 0; i < 4; i++) {
-        ide_devices[i].Reserved = 0;
-    }
-    // 1- Detect I/O Ports which interface IDE Controller:
-    channels[ATA_PRIMARY].base = (BAR0 & 0xFFFFFFFC) + 0x1F0 * (!BAR0);
-    channels[ATA_PRIMARY].ctrl = (BAR1 & 0xFFFFFFFC) + 0x3F6 * (!BAR1);
-    channels[ATA_SECONDARY].base = (BAR2 & 0xFFFFFFFC) + 0x170 * (!BAR2);
-    channels[ATA_SECONDARY].ctrl = (BAR3 & 0xFFFFFFFC) + 0x376 * (!BAR3);
-    channels[ATA_PRIMARY].bmide = (BAR4 & 0xFFFFFFFC) + 0;   // Bus Master IDE
-    channels[ATA_SECONDARY].bmide = (BAR4 & 0xFFFFFFFC) + 8; // Bus Master IDE
-    // 2- Disable IRQs:
-    ide_write(ATA_PRIMARY, ATA_REG_CONTROL, 2);
-    ide_write(ATA_SECONDARY, ATA_REG_CONTROL, 2);
-    logk("w1\n");
-    // 3- Detect ATA-ATAPI Devices:
-    for (int i = 0; i < 2; i++)
-        for (j = 0; j < 2; j++) {
-            unsigned char err = 0, type = IDE_ATA, status;
-            ide_devices[count].Reserved = 0; // Assuming that no drive here.
-
-            // (I) Select Drive:
-            ide_write(i, ATA_REG_HDDEVSEL, 0xA0 | (j << 4)); // Select Drive.
-            clock_sleep(1); // Wait 1ms for drive select to work.
-            logk("I\n");
-            // (II) Send ATA Identify Command:
-            ide_write(i, ATA_REG_COMMAND, ATA_CMD_IDENTIFY);
-            clock_sleep(1); // This function should be implemented in your OS. which waits
-            // for 1 ms. it is based on System Timer Device Driver.
-            logk("II\n");
-            // (III) Polling:
-            if (ide_read(i, ATA_REG_STATUS) == 0)
-                continue; // If Status = 0, No Device.
-            logk("III\n");
-            while (1) {
-                logk("read ide....\n");
-                status = ide_read(i, ATA_REG_STATUS);
-                logk("read ok\n");
-                if ((status & ATA_SR_ERR)) {
-                    err = 1;
-                    break;
-                } // If Err, Device is not ATA.
-                if (!(status & ATA_SR_BSY) && (status & ATA_SR_DRQ))
-                    break; // Everything is right.
-            }
-
-            // (IV) Probe for ATAPI Devices:
-            logk("IV\n");
-            if (err != 0) {
-                unsigned char cl = ide_read(i, ATA_REG_LBA1);
-                unsigned char ch = ide_read(i, ATA_REG_LBA2);
-
-                if (cl == 0x14 && ch == 0xEB)
-                    type = IDE_ATAPI;
-                else if (cl == 0x69 && ch == 0x96)
-                    type = IDE_ATAPI;
-                else
-                    continue; // Unknown Type (may not be a device).
-
-                ide_write(i, ATA_REG_COMMAND, ATA_CMD_IDENTIFY_PACKET);
-                clock_sleep(1);
-            }
-
-            // (V) Read Identification Space of the Device:
-            logk("V\n");
-            ide_read_buffer(i, ATA_REG_DATA, (unsigned int)ide_buf, 128);
-
-            // (VI) Read Device Parameters:
-            logk("VI\n");
-            ide_devices[count].Reserved = 1;
-            ide_devices[count].Type = type;
-            ide_devices[count].Channel = i;
-            ide_devices[count].Drive = j;
-            ide_devices[count].Signature =
-                    *((unsigned short *)(ide_buf + ATA_IDENT_DEVICETYPE));
-            ide_devices[count].Capabilities =
-                    *((unsigned short *)(ide_buf + ATA_IDENT_CAPABILITIES));
-            ide_devices[count].CommandSets =
-                    *((unsigned int *)(ide_buf + ATA_IDENT_COMMANDSETS));
-
-            // (VII) Get Size:
-            logk("VII\n");
-            if (ide_devices[count].CommandSets & (1 << 26))
-                // Device uses 48-Bit Addressing:
-                ide_devices[count].Size =
-                        *((unsigned int *)(ide_buf + ATA_IDENT_MAX_LBA_EXT));
-            else
-                // Device uses CHS or 28-bit Addressing:
-                ide_devices[count].Size =
-                        *((unsigned int *)(ide_buf + ATA_IDENT_MAX_LBA));
-
-            // (VIII) String indicates model of device (like Western Digital HDD and
-            // SONY DVD-RW...):
-            logk("VIII\n");
-            for (k = 0; k < 40; k += 2) {
-                ide_devices[count].Model[k] = ide_buf[ATA_IDENT_MODEL + k + 1];
-                ide_devices[count].Model[k + 1] = ide_buf[ATA_IDENT_MODEL + k];
-            }
-            ide_devices[count].Model[40] = 0; // Terminate String.
-
-            count++;
-        }
-
-    // 4- Print Summary:
-    vdisk vd;
-    for (int i = 0; i < 4; i++)
-        if (ide_devices[i].Reserved == 1) {
-            logk(" %d Found %s Drive %dMB - %s\n", i,
-                 (const char *[]){"ATA", "ATAPI"}[ide_devices[i].Type], /* Type */
-                    ide_devices[i].Size / 1024 / 2,                        /* Size */
-                    ide_devices[i].Model);
-            strcpy(vd.DriveName, ide_devices[i].Model);
-            vd.flag = 1;
-            vd.Read = Read;
-            vd.Write = Write;
-            vd.size = ide_devices[i].Size;
-            printf("[Disk (%c)]: Size: %dMB Name: %s\n",register_vdisk(vd),vd.size,vd.DriveName);
-        }
-}

driver/keyboard.c

@@ -90,7 +90,7 @@ unsigned char shift_keyboard_map[128] =
 
 static void default_handle(uint32_t key,int release,char c){
     if(!release) {
-        if(c == -1) {
+        if(key == 42) {
             key_status->is_shift = 1;
             return 0;
         }
@@ -106,7 +106,7 @@ static void default_handle(uint32_t key,int release,char c){
 
         queue_push(key_char_queue,(char)c);
     } else {
-        if(c == -1){
+        if(key == -86){
             key_status->is_shift = 0;
         }
 
@@ -125,6 +125,7 @@ void init_keyboard(){
     head_listener = (struct key_listener*) kmalloc(sizeof(struct key_listener));
     head_listener->func = default_handle;
     head_listener->lid = 0;
+    head_listener->next = NULL;
 
     register_interrupt_handler(0x21,handle_keyboard_input);
 }

driver/vdisk.c

@@ -10,30 +10,27 @@
 
 int getReadyDisk();
 
-vdisk vdisk_ctl[10];
+vdisk vdisk_ctl[26];
 
 int init_vdisk() {
-    for (int i = 0; i < 10; i++) {
+    for (int i = 0; i < 26; i++) {
         vdisk_ctl[i].flag = 0; // 设置为未使用
     }
-    printf("[\035kernel\036]: VDisk driver load success!\n");
-    return 0;
 }
 
 int register_vdisk(vdisk vd) {
-    for (int i = 0; i < 10; i++) {
+    for (int i = 0; i < 26; i++) {
         if (!vdisk_ctl[i].flag) {
             vdisk_ctl[i] = vd; // 找到了！
             return i + ('A');  // 注册成功，返回drive
         }
     }
-    printf("[vdisk]not found\n");
+    printk("[vdisk]not found\n");
     return 0; // 注册失败
 }
-
 int logout_vdisk(char drive) {
     int indx = drive - ('A');
-    if (indx > 10) {
+    if (indx > 26) {
         return 0; // 失败
     }
     if (vdisk_ctl[indx].flag) {
@@ -43,17 +40,15 @@ int logout_vdisk(char drive) {
         return 0; // 失败
     }
 }
-
 int rw_vdisk(char drive, unsigned int lba, unsigned char *buffer,
              unsigned int number, int read) {
     int indx = drive - ('A');
-    if (indx > 10) {
+    if (indx > 26) {
         return 0; // 失败
     }
     if (vdisk_ctl[indx].flag) {
         if (read) {
             vdisk_ctl[indx].Read(drive, buffer, number, lba);
-            //for(;;);
         } else {
             vdisk_ctl[indx].Write(drive, buffer, number, lba);
         }
@@ -62,10 +57,10 @@ int rw_vdisk(char drive, unsigned int lba, unsigned char *buffer,
         return 0; // 失败
     }
 }
-
+bool have_vdisk(char drive) {
-int have_vdisk(char drive) {
     int indx = drive - 'A';
-    if (indx > 10) {
+    // printk("drive=%c\n",drive);
+    if (indx > 26) {
         return 0; // 失败
     }
     if (vdisk_ctl[indx].flag) {
@@ -74,63 +69,23 @@ int have_vdisk(char drive) {
         return 0; // 失败
     }
 }
-
+// 基于vdisk的通用读写
-void Disk_Read(unsigned int lba, unsigned int number, void *buffer,
-               char drive) {
-    if (have_vdisk(drive)) {
-        for (int i = 0; i < number; i += SECTORS_ONCE) {
-            int sectors =
-                    ((number - i) >= SECTORS_ONCE) ? SECTORS_ONCE : (number - i);
-            rw_vdisk(drive, lba + i, buffer + i * 512, sectors, 1);
-        }
-    }
-}
-
-int disk_Size(char drive) {
-    unsigned char drive1 = drive;
-    if (have_vdisk(drive1)) {
-        int indx = drive1 - 'A';
-        return vdisk_ctl[indx].size;
-    } else {
-        print("Disk Not Ready.\n");
-        return 0;
-    }
-
-    return 0;
-}
-
-int DiskReady(char drive) { return have_vdisk(drive); }
-
-int getReadyDisk() { return 0; }
-
-void Disk_Write(unsigned int lba, unsigned int number, void *buffer,
-                char drive) {
-    if (have_vdisk(drive)) {
-        for (int i = 0; i < number; i += SECTORS_ONCE) {
-            int sectors =
-                    ((number - i) >= SECTORS_ONCE) ? SECTORS_ONCE : (number - i);
-            rw_vdisk(drive, lba + i, buffer + i * 512, sectors, 0);
-        }
-    }
-}
 
 static unsigned char *drive_name[16] = {NULL, NULL, NULL, NULL, NULL, NULL,
                                         NULL, NULL, NULL, NULL, NULL, NULL,
                                         NULL, NULL, NULL, NULL};
 static struct FIFO8 drive_fifo[16];
 static unsigned char drive_buf[16][256];
-
 bool SetDrive(unsigned char *name) {
     for (int i = 0; i != 16; i++) {
         if (drive_name[i] == NULL) {
             drive_name[i] = name;
             fifo8_init(&drive_fifo[i], 256, drive_buf[i]);
-            return 1;
+            return true;
         }
     }
-    return 0;
+    return false;
 }
-
 unsigned int GetDriveCode(unsigned char *name) {
     for (int i = 0; i != 16; i++) {
         if (strcmp((char *)drive_name[i], (char *)name) == 0) {
@@ -141,24 +96,48 @@ unsigned int GetDriveCode(unsigned char *name) {
 }
 
 bool DriveSemaphoreTake(unsigned int drive_code) {
-    if (drive_code >= 16) {
+    return true;
-        return 1;
-    }
-    fifo8_put(&drive_fifo[drive_code], get_current()->pid);
-    // printk("FIFO: %d PUT: %d STATUS: %d\n", drive_code, Get_Tid(current_task()),
-    //        fifo8_status(&drive_fifo[drive_code]));
-    while (drive_buf[drive_code][drive_fifo[drive_code].q] !=
-           get_current()->pid) {
-        // printk("Waiting....\n");
-    }
-    return 1;
 }
 void DriveSemaphoreGive(unsigned int drive_code) {
-    if (drive_code >= 16) {
     return;
 }
-    if (drive_buf[drive_code][drive_fifo[drive_code].q] != get_current()->pid) {
+
-        return;
+void Disk_Read(unsigned int lba, unsigned int number, void *buffer,
+               char drive) {
+    if (have_vdisk(drive)) {
+        if (DriveSemaphoreTake(GetDriveCode((unsigned char *)"DISK_DRIVE"))) {
+            for (int i = 0; i < number; i += SECTORS_ONCE) {
+                int sectors = ((number - i) >= SECTORS_ONCE) ? SECTORS_ONCE : (number - i);
+                rw_vdisk(drive, lba + i, buffer + i * 512, sectors, 1);
+            }
+            DriveSemaphoreGive(GetDriveCode((unsigned char *)"DISK_DRIVE"));
+        }
+    }
+}
+unsigned int disk_Size(char drive) {
+    unsigned char drive1 = drive;
+    if (have_vdisk(drive1)) {
+        int indx = drive1 - 'A';
+        return vdisk_ctl[indx].size;
+    } else {
+        return 0;
+    }
+
+    return 0;
+}
+bool DiskReady(char drive) { return have_vdisk(drive); }
+int getReadyDisk() { return 0; }
+void Disk_Write(unsigned int lba, unsigned int number, void *buffer,
+                char drive) {
+//  printk("%d\n",lba);
+    if (have_vdisk(drive)) {
+        if (DriveSemaphoreTake(GetDriveCode((unsigned char *)"DISK_DRIVE"))) {
+            // printk("*buffer(%d %d) = %02x\n",lba,number,*(unsigned char *)buffer);
+            for (int i = 0; i < number; i += SECTORS_ONCE) {
+                int sectors = ((number - i) >= SECTORS_ONCE) ? SECTORS_ONCE : (number - i);
+                rw_vdisk(drive, lba + i, buffer + i * 512, sectors, 0);
+            }
+            DriveSemaphoreGive(GetDriveCode((unsigned char *)"DISK_DRIVE"));
+        }
     }
-    fifo8_get(&drive_fifo[drive_code]);
 }

fs/iso9660.c

@@ -0,0 +1,328 @@
+#include "../include/iso9660.h"
+#include "../include/memory.h"
+#include "../include/vfs.h"
+#include "../include/vdisk.h"
+
+#define l9660_seekdir(dir, pos) (l9660_seek(&(dir)->file, L9660_SEEK_SET, (pos)))
+#define l9660_telldir(dir)      (l9660_tell(&(dir)->file))
+
+#define SEEK_END L9660_SEEK_END
+#define SEEK_SET L9660_SEEK_SET
+#define SEEK_CUR L9660_SEEK_CUR
+
+#define DENT_EXISTS         (1 << 0)
+#define DENT_ISDIR          (1 << 1)
+#define DENT_ASSOCIATED     (1 << 2)
+#define DENT_RECORD         (1 << 3)
+#define DENT_PROTECTION     (1 << 4)
+#define DENT_MULTIEXTENT    (1 << 5)
+
+#define PVD(vdesc) ((l9660_vdesc_primary*)(vdesc))
+
+#ifdef L9660_BIG_ENDIAN
+#define READ16(v) (((v).be[1]) | ((v).be[0] << 8))
+#define READ32(v) (((v).be[3]) | ((v).be[2] << 8) | ((v).be[1]) << 16 | ((v).be[0] << 24))
+#else
+#define READ16(v) (((v).le[0]) | ((v).le[1] << 8))
+#define READ32(v) (((v).le[0]) | ((v).le[1] << 8) | ((v).le[2]) << 16 | ((v).le[3] << 24))
+#endif
+
+#ifndef L9660_SINGLEBUFFER
+#define HAVEBUFFER(f) (true)
+#define BUF(f) ((f)->buf)
+#else
+#define HAVEBUFFER(f) ((f) == last_file)
+#define BUF(f) (gbuf)
+static l9660_file *last_file;
+static char        gbuf[2048];
+#endif
+
+l9660_fs *fs;
+
+static char *strchrnul(const char *s, int c) {
+    while (*s) {
+        if ((*s++) == c)
+            break;
+    }
+    return (char *) s;
+}
+
+static inline uint16_t
+fsectoff(l9660_file
+*f)
+{
+return f->position % 2048;
+}
+
+static inline uint32_t
+fsector(l9660_file
+*f)
+{
+return f->position / 2048;
+}
+
+static inline uint32_t
+fnextsectpos(l9660_file
+*f)
+{
+return (f->position + 2047) & ~2047;
+}
+
+l9660_status l9660_openfs(l9660_fs *fs, bool (*read_sector)(l9660_fs *fs, void *buf, uint32_t sector,uint8_t disk_number),uint8_t disk_number){
+fs->
+read_sector = read_sector;
+
+#ifndef L9660_SINGLEBUFFER
+l9660_vdesc_primary *pvd = PVD(&fs->pvd);
+#else
+last_file = NULL;
+    l9660_vdesc_primary *pvd = PVD(gbuf);
+#endif
+uint32_t idx = 0x10;
+for (;;) {
+// Read next sector
+if (!
+read_sector(fs, pvd, idx, disk_number
+))
+return
+L9660_EIO;
+
+// Validate magic
+if (
+memcmp(pvd
+->hdr.magic, "CD001", 5) != 0)
+return
+L9660_EBADFS;
+
+if (pvd->hdr.type == 1)
+break; // Found PVD
+else if(pvd->hdr.type == 255)
+return
+L9660_EBADFS;
+}
+
+#ifdef L9660_SINGLEBUFFER
+memcpy(&fs->root_dir_ent, &pvd->root_dir_ent, pvd->root_dir_ent.length);
+#endif
+
+return
+L9660_OK;
+}
+
+l9660_status l9660_fs_open_root(l9660_dir *dir, l9660_fs *fs) {
+    l9660_file * f = &dir->file;
+#ifndef L9660_SINGLEBUFFER
+    l9660_dirent *dirent = &PVD(&fs->pvd)->root_dir_ent;
+#else
+    l9660_dirent *dirent = &fs->root_dir_ent;
+#endif
+
+    f->fs = fs;
+    f->first_sector = READ32(dirent->sector);
+    f->length = READ32(dirent->size);
+    f->position = 0;
+
+    return L9660_OK;
+}
+
+static l9660_status buffer(l9660_file *f) {
+#ifdef L9660_SINGLEBUFFER
+    last_file = f;
+#endif
+    if (!f->fs->read_sector(f->fs, BUF(f), f->first_sector + f->position / 2048))
+        return L9660_EIO;
+    else
+        return L9660_OK;
+}
+
+static l9660_status prebuffer(l9660_file *f) {
+    if (!HAVEBUFFER(f) || (f->position % 2048) == 0)
+        return buffer(f);
+    else return L9660_OK;
+}
+
+static l9660_status openat_raw(l9660_file *child, l9660_dir *parent, const char *name, bool isdir) {
+    l9660_status rv;
+    l9660_dirent *dent = NULL;
+    if ((rv = l9660_seekdir(parent, 0))) return rv;
+
+    do {
+        const char *seg = name;
+        name = strchrnul(name, '/');
+        size_t seglen = name - seg;
+
+        /* ISO9660 stores '.' as '\0' */
+        if (seglen == 1 && *seg == '.')
+            seg = "\0";
+
+        /* ISO9660 stores ".." as '\1' */
+        if (seglen == 2 && seg[0] == '.' && seg[1] == '.') {
+            seg = "\1";
+            seglen = 1;
+        }
+
+        for (;;) {
+            if ((rv = l9660_readdir(parent, &dent)))
+                return rv;
+
+            /* EOD */
+            if (!dent)
+                return L9660_ENOENT;
+
+#ifdef DEBUG
+            print_dirent(dent);
+#endif
+
+            /* wrong length */
+            if (seglen > dent->name_len)
+                continue;
+
+            /* check name */
+            if (memcmp(seg, dent->name, seglen) != 0)
+                continue;
+
+            /* check for a revision tag */
+            if (dent->name_len > seglen && dent->name[seglen] != ';')
+                continue;
+
+            /* all tests pass */
+            break;
+        }
+
+        child->fs = parent->file.fs;
+        child->first_sector = READ32(dent->sector) + dent->xattr_length;
+        child->length = READ32(dent->size);
+        child->position = 0;
+
+        if (*name && (dent->flags & DENT_ISDIR) != 0)
+            return L9660_ENOTDIR;
+
+        parent = (l9660_dir *) child;
+    } while (*name);
+
+    if (isdir) {
+        if ((dent->flags & DENT_ISDIR) == 0)
+            return L9660_ENOTDIR;
+    } else {
+        if ((dent->flags & DENT_ISDIR) != 0)
+            return L9660_ENOTFILE;
+    }
+
+    return L9660_OK;
+}
+
+l9660_status l9660_opendirat(l9660_dir *dir, l9660_dir *parent, const char *path) {
+    return openat_raw(&dir->file, parent, path, true);
+}
+
+static inline unsigned aligneven(unsigned v) {
+    return v + (v & 1);
+}
+
+l9660_status l9660_readdir(l9660_dir *dir, l9660_dirent **pdirent) {
+    l9660_status rv;
+    l9660_file * f = &dir->file;
+
+    rebuffer:
+    if (f->position >= f->length) {
+        *pdirent = NULL;
+        return L9660_OK;
+    }
+
+    if ((rv = prebuffer(f)))
+        return rv;
+
+    char *off = BUF(f) + fsectoff(f);
+    if (*off == 0) {
+        // Padded end of sector
+        f->position = fnextsectpos(f);
+        goto rebuffer;
+    }
+
+    l9660_dirent *dirent = (l9660_dirent *) off;
+    f->position += aligneven(dirent->length);
+
+    *pdirent = dirent;
+    return L9660_OK;
+}
+
+l9660_status l9660_openat(l9660_file *child, l9660_dir *parent, const char *name) {
+    return openat_raw(child, parent, name, false);
+}
+
+/*! Seek the file to \p offset from \p whence */
+l9660_status l9660_seek(l9660_file *f, int whence, int32_t offset) {
+    l9660_status rv;
+    uint32_t cursect = fsector(f);
+
+    switch (whence) {
+        case SEEK_SET:
+            f->position = offset;
+            break;
+
+        case SEEK_CUR:
+            f->position = f->position + offset;
+            break;
+
+        case SEEK_END:
+            f->position = f->length - offset;
+            break;
+    }
+
+    if (fsector(f) != cursect && fsectoff(f) != 0) {
+        if ((rv = buffer(f)))
+            return rv;
+    }
+
+    return L9660_OK;
+}
+
+uint32_t l9660_tell(l9660_file *f) {
+    return f->position;
+}
+
+l9660_status l9660_read(l9660_file *f, void *buf, size_t size, size_t *read) {
+    l9660_status rv;
+
+    if ((rv = prebuffer(f)))
+        return rv;
+
+    uint16_t rem = 2048 - fsectoff(f);
+    if (rem > f->length - f->position)
+        rem = f->length - f->position;
+    if (rem < size)
+        size = rem;
+
+    memcpy(buf, BUF(f) + fsectoff(f), size);
+
+    *read = size;
+    f->position += size;
+
+    return L9660_OK;
+}
+
+bool read_sector(l9660_fs *fs, void *buf, uint32_t sector,uint8_t disk_number){
+    return false;
+}
+
+bool ISO_Check(uint8_t disk_number){
+    l9660_openfs(fs,read_sector,disk_number);
+    return false;
+}
+
+void ISO_InitFs(struct vfs_t *vfs, uint8_t disk_number){
+
+}
+
+void init_iso9660(){
+    vfs_t fs;
+    fs.flag = 1;
+    fs.cache = NULL;
+    strcpy(fs.FSName, "ISO9660");
+
+    fs.Check = ISO_Check;
+    fs.InitFs = ISO_InitFs;
+
+
+    //vfs_register_fs(fs);
+}

fs/vfs.c

@@ -83,9 +83,10 @@ bool vfs_mount_disk(uint8_t disk_number, uint8_t drive) {
         printf("can not find a seat of vfsMount_Stl(it's full)\n");
         return false;
     }
+
     vfs_t *fs = check_disk_fs(disk_number);
     if (!fs) {
-        printf("unknow file system.\n");
+        printf("[FileSystem]: Unknown file system.\n");
         return false;
     }
     *seat = *fs;
@@ -178,6 +179,41 @@ bool vfs_delfile(char *filename) {
     return result;
 }
 
+bool vfs_change_path(char *dictName) {
+    char *buf = kmalloc(strlen(dictName) + 1);
+    char *r = buf;
+    memcpy(buf, dictName, strlen(dictName) + 1);
+    int i = 0;
+    if (buf[i] == '/' || buf[i] == '\\') {
+        if (!vfs_now->cd(vfs_now, "/")) {
+            kfree(r);
+            return false;
+        }
+        i++;
+        buf++;
+    }
+
+    for (;; i++) {
+        if (buf[i] == '/' || buf[i] == '\\') {
+            buf[i] = 0;
+            if (!vfs_now->cd(vfs_now, buf)) {
+                kfree(r);
+                return false;
+            }
+            buf += strlen(buf) + 1;
+        }
+        if (buf[i] == 0) {
+            if (!vfs_now->cd(vfs_now, buf)) {
+                kfree(r);
+                return false;
+            }
+            break;
+        }
+    }
+    kfree(r);
+    return true;
+}
+
 bool vfs_deldir(char *dictname) {
     char *new_path = kmalloc(strlen(dictname) + 1);
     strcpy(new_path, dictname);
@@ -206,6 +242,7 @@ bool vfs_createfile(char *filename) {
 
 bool vfs_createdict(char *filename) {
     char *new_path = kmalloc(strlen(filename) + 1);
+    memclean(new_path, strlen(filename) + 1);
     strcpy(new_path, filename);
     vfs_t *vfs = ParsePath(new_path);
     if (vfs == NULL) {
@@ -254,17 +291,41 @@ bool vfs_format(uint8_t disk_number, char *FSName) {
 
 vfs_file *vfs_fileinfo(char *filename) {
     char *new_path = kmalloc(strlen(filename) + 1);
+    memclean(new_path,strlen(filename) + 1);
     strcpy(new_path, filename);
     vfs_t *vfs = ParsePath(new_path);
     if (vfs == NULL) {
         kfree(new_path);
         return false;
     }
+
+
+
     vfs_file *result = vfs->FileInfo(vfs, new_path);
     kfree(new_path);
     return result;
 }
 
+vfs_file *get_cur_file(char* filename){
+    vfs_file *file = NULL;
+    List *ls = vfs_listfile("");
+    strtoupper(filename);
+    for (int i = 1; FindForCount(i, ls) != NULL; i++) {
+        vfs_file *d = (vfs_file *) FindForCount(i, ls)->val;
+        if(strcmp(d->name, filename) == 0){
+            file = d;
+            break;
+        }
+        kfree(d);
+    }
+    DeleteList(ls);
+    kfree(ls);
+
+
+
+    return file;
+}
+
 bool vfs_change_disk(uint8_t drive) {
     if (vfs_now != NULL) {
         while (FindForCount(1, vfs_now->path) != NULL) {
@@ -275,10 +336,12 @@ bool vfs_change_disk(uint8_t drive) {
         DeleteList(vfs_now->path);
         kfree(vfs_now);
     }
+
     vfs_t *f;
     if (!(f = drive2fs(drive))) {
         return false; // 没有mount
     }
+
     vfs_now = kmalloc(sizeof(vfs_t));
     memcpy(vfs_now, f, sizeof(vfs_t));
     f->CopyCache(vfs_now, f);
@@ -287,6 +350,44 @@ bool vfs_change_disk(uint8_t drive) {
     return true;
 }
 
+void vfs_getPath(char *buffer) {
+    char *path;
+    List *l;
+    buffer[0] = 0;
+    insert_char(buffer, 0, vfs_now->drive);
+    insert_char(buffer, 1, ':');
+    insert_char(buffer, 2, '\\');
+    int pos = strlen(buffer);
+    for (int i = 1; FindForCount(i, vfs_now->path) != NULL; i++) {
+        l = FindForCount(i, vfs_now->path);
+        path = (char *)l->val;
+        insert_str(buffer, path, pos);
+        pos += strlen(path);
+        insert_char(buffer, pos, '\\');
+        pos++;
+    }
+    delete_char(buffer, pos - 1);
+}
+
+void vfs_getPath_no_drive(char *buffer) {
+    char *path;
+    List *l;
+    buffer[0] = 0;
+    int pos = strlen(buffer);
+    int i;
+    for (i = 1; FindForCount(i, vfs_now->path) != NULL; i++) {
+        l = FindForCount(i, vfs_now->path);
+        path = (char *)l->val;
+        insert_char(buffer, pos, '/');
+        pos++;
+        insert_str(buffer, path, pos);
+        pos += strlen(path);
+    }
+    if (i == 1) {
+        insert_char(buffer, 0, '/');
+    }
+}
+
 void init_vfs() {
     for (int i = 0; i < 26; i++) {
         vfsstl[i].flag = 0;

include/arp.h

@@ -22,5 +22,5 @@ struct ARPMessage {
 uint64_t IPParseMAC(uint32_t dstIP);
 uint8_t *ARP_Packet(uint64_t dest_mac, uint32_t dest_ip, uint64_t src_mac,
                     uint32_t src_ip, uint16_t command);
-
+void arp_handler(void *base);
 #endif

include/common.h

@@ -46,7 +46,7 @@ char *int64_to_str_dec(int64_t num, int flag, int width);
 char *uint32_to_str_hex(uint32_t num, int flag, int width);
 char *uint64_to_str_hex(uint64_t num, int flag, int width);
 char *uint32_to_str_oct(uint32_t num, int flag, int width);
-char *insert_str(char *buf, const char *str);
+void insert_str(char *str, char *insert_str, int pos);
 int vsprintf(char *buf, const char *fmt, va_list args);
 int sprintf(char *buf, const char *fmt, ...);
 long int strtol(const char *str,char **endptr,int base);

include/fat.h

@@ -0,0 +1,110 @@
+#ifndef CRASHPOWERDOS_FAT_H
+#define CRASHPOWERDOS_FAT_H
+
+#define BS_FileSysType 54
+#define BPB_Fat32ExtByts 28
+#define BS_jmpBoot 0
+#define BS_OEMName 3
+#define BPB_BytsPerSec 11
+#define BPB_SecPerClus 13
+#define BPB_RsvdSecCnt 14
+#define BPB_NumFATs 16
+#define BPB_RootEntCnt 17
+#define BPB_TotSec16 19
+#define BPB_Media 21
+#define BPB_FATSz16 22
+#define BPB_SecPerTrk 24
+#define BPB_NumHeads 26
+#define BPB_HiddSec 28
+#define BPB_TotSec32 32
+#define BPB_FATSz32 36
+#define BPB_ExtFlags 40
+#define BPB_FSVer 42
+#define BPB_RootClus 44
+#define BPB_FSInfo 48
+#define BPB_BkBootSec 50
+#define BPB_Reserved 52
+#define BPB_Fat32ExtByts 28
+#define BS_DrvNum 36
+#define BS_Reserved1 37
+#define BS_BootSig 38
+#define BS_VolD 39
+#define BS_VolLab 43
+#define BS_FileSysType 54
+#define EOF -1
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+
+#include "list.h"
+#include "vfs.h"
+
+struct FAT_FILEINFO {
+    unsigned char name[8], ext[3], type;
+    char reserve;
+    unsigned char create_time_tenth;
+    unsigned short create_time, create_date, access_date, clustno_high;
+    unsigned short update_time, update_date, clustno_low;
+    unsigned int size;
+};
+
+struct FAT_CACHE {
+    unsigned int ADR_DISKIMG;
+    struct FAT_FILEINFO *root_directory;
+    struct List *directory_list;
+    struct List *directory_clustno_list;
+    struct List *directory_max_list;
+    int *fat;
+    int FatMaxTerms;
+    unsigned int ClustnoBytes;
+    unsigned short RootMaxFiles;
+    unsigned int RootDictAddress;
+    unsigned int FileDataAddress;
+    unsigned int imgTotalSize;
+    unsigned short SectorBytes;
+    unsigned int Fat1Address, Fat2Address;
+    unsigned char *FatClustnoFlags;
+    int type;
+};
+typedef struct {
+    struct FAT_CACHE dm;
+    struct FAT_FILEINFO *dir;
+} fat_cache;
+
+void read_fat(unsigned char *img, int *fat, unsigned char *ff, int max,
+              int type);
+int get_directory_max(struct FAT_FILEINFO *directory, vfs_t *vfs);
+int changedict(char *dictname, vfs_t *vfs);
+struct FAT_FILEINFO *dict_search(char *name, struct FAT_FILEINFO *finfo,
+                                 int max);
+void file_savefat(int *fat, int clustno, int length, vfs_t *vfs);
+void file_saveinfo(struct FAT_FILEINFO *directory, vfs_t *vfs);
+void file_savefile(int clustno, int size, char *buf, int *fat,
+                   unsigned char *ff, vfs_t *vfs);
+void file_loadfile(int clustno, int size, char *buf, int *fat, vfs_t *vfs);
+int deldir(char *path, vfs_t *vfs);
+int del(char *cmdline, vfs_t *vfs);
+int attrib(char *filename, ftype type, struct vfs_t *vfs);
+int rename(char *src_name, char *dst_name, vfs_t *vfs);
+int mkdir(char *dictname, int last_clust, vfs_t *vfs);
+int mkfile(char *name, vfs_t *vfs);
+void fat_InitFS(struct vfs_t *vfs, uint8_t disk_number);
+bool Fat_Check(uint8_t disk_number);
+void Fat_CopyCache(struct vfs_t *dest, struct vfs_t *src);
+List *Fat_ListFile(struct vfs_t *vfs, char *dictpath);
+bool Fat_WriteFile(struct vfs_t *vfs, char *path, char *buffer, int size);
+bool Fat_ReadFile(struct vfs_t *vfs, char *path, char *buffer);
+bool Fat_RenameFile(struct vfs_t *vfs, char *filename, char *filename_of_new);
+bool Fat_CreateFile(struct vfs_t *vfs, char *filename);
+void Fat_DeleteFs(struct vfs_t *vfs);
+bool Fat_DelFile(struct vfs_t *vfs, char *path);
+bool Fat_DelDict(struct vfs_t *vfs, char *path);
+bool Fat_Format(uint8_t disk_number);
+vfs_file *Fat_FileInfo(struct vfs_t *vfs, char *filename);
+bool Fat_Attrib(struct vfs_t *vfs, char *filename, ftype type);
+bool Fat_CreateDict(struct vfs_t *vfs, char *filename);
+bool Fat_cd(struct vfs_t *vfs, char *dictName);
+struct FAT_FILEINFO *Get_dictaddr(char *path1, vfs_t *vfs);
+void Register_fat_fileSys();
+
+#endif

include/ide.h

@@ -73,26 +73,26 @@
 #define ATA_READ 0x00
 #define ATA_WRITE 0x01
 
+void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
+                    unsigned int BAR3, unsigned int BAR4);
 unsigned char ide_read(unsigned char channel, unsigned char reg);
 void ide_write(unsigned char channel, unsigned char reg, unsigned char data);
 void ide_read_buffer(unsigned char channel, unsigned char reg,
                      unsigned int buffer, unsigned int quads);
 unsigned char ide_polling(unsigned char channel, unsigned int advanced_check);
 unsigned char ide_print_error(unsigned int drive, unsigned char err);
-void ide_wait_irq();
-void ide_irq();
 unsigned char ide_ata_access(unsigned char direction, unsigned char drive,
                              unsigned int lba, unsigned char numsects,
                              unsigned short selector, unsigned int edi);
-void ide_write_sectors(unsigned char drive, unsigned char numsects,
+void ide_wait_irq();
-                       unsigned int lba, unsigned short es, unsigned int edi);
+void ide_irq();
-void ide_read_sectors(unsigned char drive, unsigned char numsects,
-                      unsigned int lba, unsigned short es, unsigned int edi);
 unsigned char ide_atapi_read(unsigned char drive, unsigned int lba,
                              unsigned char numsects, unsigned short selector,
                              unsigned int edi);
+void ide_read_sectors(unsigned char drive, unsigned char numsects,
+                      unsigned int lba, unsigned short es, unsigned int edi);
+void ide_write_sectors(unsigned char drive, unsigned char numsects,
+                       unsigned int lba, unsigned short es, unsigned int edi);
 void ide_atapi_eject(unsigned char drive);
-void ide_initialize(unsigned int BAR0, unsigned int BAR1, unsigned int BAR2,
-                    unsigned int BAR3, unsigned int BAR4);
 
 #endif

include/iso9660.h

@@ -0,0 +1,169 @@
+#ifndef CRASHPOWEROS_ISO9660_H
+#define CRASHPOWEROS_ISO9660_H
+
+#define L9660_SEEK_END -1
+#define L9660_SEEK_SET  0
+#define L9660_SEEK_CUR +1
+
+#include <stdint.h>
+#include <stddef.h>
+#include "common.h"
+
+typedef enum {
+    /*! Success! */
+    L9660_OK = 0,
+    /*! read_sector callback returned false */
+    L9660_EIO,
+    /*! file system is bad */
+    L9660_EBADFS,
+    /*! specified name does not exist */
+    L9660_ENOENT,
+    /*! attempted to open a non-file (e.g. a directory) as a file */
+    L9660_ENOTFILE,
+    /*! attempted to open a non-directory (e.g. a file) as a directory
+     *  may be returned by l9660_openat if e.g. you pass path "a/b" and
+     *  "a" is a file
+     */
+    L9660_ENOTDIR,
+} l9660_status;
+
+typedef struct {
+    uint8_t le[2];
+} l9660_luint16;
+typedef struct {
+    uint8_t be[2];
+} l9660_buint16;
+typedef struct {
+    uint8_t le[2], be[2];
+} l9660_duint16;
+typedef struct {
+    uint8_t le[4];
+} l9660_luint32;
+typedef struct {
+    uint8_t be[4];
+} l9660_buint32;
+typedef struct {
+    uint8_t le[4], be[4];
+} l9660_duint32;
+
+/* Descriptor time format */
+typedef struct {
+    char d[17];
+} l9660_desctime;
+
+/* File time format */
+typedef struct {
+    char d[7];
+} l9660_filetime;
+
+/* Directory entry */
+typedef struct {
+    uint8_t length;
+    uint8_t xattr_length;
+    l9660_duint32 sector;
+    l9660_duint32 size;
+    l9660_filetime time;
+    uint8_t flags;
+    uint8_t unit_size;
+    uint8_t gap_size;
+    l9660_duint16 vol_seq_number;
+    uint8_t name_len;
+    char name[/*name_len*/];
+} l9660_dirent;
+
+/* Volume descriptor header */
+typedef struct {
+    uint8_t type;
+    char magic[5];
+    uint8_t version;
+} l9660_vdesc_header;
+
+/* Primary volume descriptor */
+typedef struct {
+    l9660_vdesc_header hdr;
+    char pad0[1];
+    char system_id[32];
+    char volume_id[32];
+    char pad1[8];
+    l9660_duint32 volume_space_size;
+    char pad2[32];
+    l9660_duint16 volume_set_size;
+    l9660_duint16 volume_seq_number;
+    l9660_duint16 logical_block_size;
+    l9660_duint32 path_table_size;
+    l9660_luint32 path_table_le;
+    l9660_luint32 path_table_opt_le;
+    l9660_buint32 path_table_be;
+    l9660_buint32 path_table_opt_be;
+    union {
+        l9660_dirent root_dir_ent;
+        char pad3[34];
+    };
+    char volume_set_id[128];
+    char data_preparer_id[128];
+    char app_id[128];
+    char copyright_file[38];
+    char abstract_file[36];
+    char bibliography_file[37];
+    l9660_desctime volume_created,
+            volume_modified,
+            volume_expires,
+            volume_effective;
+    uint8_t file_structure_version;
+    char pad4[1];
+    char app_reserved[512];
+    char reserved[653];
+} l9660_vdesc_primary;
+
+/* A generic volume descriptor (i.e. 2048 bytes) */
+typedef union {
+    l9660_vdesc_header hdr;
+    char _bits[2048];
+} l9660_vdesc;
+
+/* File system structure.
+ * Stick this inside your own structure and cast/offset as appropriate to store
+ * private data
+ */
+typedef struct l9660_fs {
+#ifdef L9660_SINGLEBUFFER
+    union {
+        l9660_dirent    root_dir_ent;
+        char            root_dir_pad[34];
+    };
+#else
+    /* Sector buffer to hold the PVD */
+    l9660_vdesc pvd;
+#endif
+
+    /* read_sector func */
+    bool (*read_sector)(struct l9660_fs *fs, void *buf, uint32_t sector);
+} l9660_fs;
+
+typedef struct {
+#ifndef L9660_SINGLEBUFFER
+    /* single sector buffer */
+    char buf[2048];
+#endif
+    l9660_fs *fs;
+    uint32_t first_sector;
+    uint32_t position;
+    uint32_t length;
+} l9660_file;
+
+typedef struct {
+    /* directories are mostly just files with special accessors, but we like type safetey */
+    l9660_file file;
+} l9660_dir;
+
+uint32_t l9660_tell(l9660_file *f);
+l9660_status l9660_read(l9660_file *f, void *buf, size_t size, size_t *read);
+l9660_status l9660_seek(l9660_file *f, int whence, int32_t offset);
+l9660_status l9660_openat(l9660_file *child, l9660_dir *parent, const char *name);
+l9660_status l9660_readdir(l9660_dir *dir, l9660_dirent **pdirent);
+l9660_status l9660_opendirat(l9660_dir *dir, l9660_dir *parent, const char *path);
+l9660_status l9660_fs_open_root(l9660_dir *dir, l9660_fs *fs);
+l9660_status l9660_openfs(l9660_fs *fs, bool (*read_sector)(l9660_fs *fs, void *buf, uint32_t sector,uint8_t disk_number),uint8_t disk_number);
+void init_iso9660();
+
+#endif

include/pcnet.h

@@ -28,7 +28,16 @@
 #define RAP32 0x14
 #define RESET32 0x18
 #define BDP32 0x1c
-
+#define MTU 1500
+#define ARP_PROTOCOL 0x806
+#define IP_PROTOCOL 0x0800
+#define IP_MF 13
+#define IP_DF 14
+#define IP_OFFSET 0
+#define swap32(x)                                                              \
+  ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) |                    \
+   (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
+#define swap16(x) ((((x) & 0xff00) >> 8) | (((x) & 0x00ff) << 8))
 #include <stdint.h>
 #include "isr.h"
 
@@ -58,5 +67,6 @@ int pcnet_find_card();
 void init_pcnet_card();
 void PCNET_IRQ(registers_t *reg);
 void Recv();
+void PcnetSend(uint8_t* buffer, int size);
 
 #endif

include/timer.h

@@ -27,6 +27,7 @@ void timer_free(struct TIMER *timer);
 void timer_init(struct TIMER *timer, struct FIFO8 *fifo, unsigned char data);
 void timer_settime(struct TIMER *timer, unsigned int timeout);
 void clock_sleep(uint32_t timer);
+void sleep(uint32_t timer);
 struct TIMER *timer_alloc(void);
 unsigned int time(void);
 void init_pit(void);

include/vdisk.h

@@ -40,7 +40,7 @@ int rw_vdisk(char drive, unsigned int lba, unsigned char *buffer,
 int have_vdisk(char drive);
 void Disk_Read(unsigned int lba, unsigned int number, void *buffer,
                char drive);
-int disk_Size(char drive);
+unsigned int disk_Size(char drive);
 int DiskReady(char drive);
 void Disk_Write(unsigned int lba, unsigned int number, void *buffer,
                 char drive);

include/vfs.h

@@ -50,6 +50,9 @@ typedef struct vfs_t {
     int flag;
 } vfs_t;
 
+bool vfs_change_path(char *dictName);
+void vfs_getPath(char *buffer);
+void vfs_getPath_no_drive(char *buffer);
 bool vfs_mount_disk(uint8_t disk_number, uint8_t drive);
 bool vfs_unmount_disk(uint8_t drive);
 bool vfs_readfile(char *path, char *buffer);
@@ -67,5 +70,6 @@ vfs_file *vfs_fileinfo(char *filename);
 bool vfs_change_disk(uint8_t drive);
 bool vfs_register_fs(vfs_t vfs);
 void init_vfs();
+vfs_file *get_cur_file(char* filename);
 
 #endif

kernel/idt.c

@@ -29,9 +29,10 @@ void isr_handler(registers_t regs) {
 }
 
 void irq_handler(registers_t regs) {
+    if(regs.int_no != 0x2b) {
         if (regs.int_no >= 40) outb(0xA0, 0x20); // 中断号 >= 40，来自从片，发送EOI给从片
         outb(0x20, 0x20); // 发送EOI给主片
-
+    }
     if (interrupt_handlers[regs.int_no]) {
         isr_t handler = interrupt_handlers[regs.int_no]; // 有自定义处理程序，调用之
         handler(&regs); // 传入寄存器

kernel/kernel.c

@@ -17,6 +17,8 @@
 #include "../include/pcnet.h"
 #include "../include/ide.h"
 #include "../include/vfs.h"
+#include "../include/fat.h"
+#include "../include/iso9660.h"
 
 extern uint32_t end;
 extern int status;
@@ -68,12 +70,20 @@ void kernel_main(multiboot_t *multiboot) {
     multiboot_all = multiboot;
     io_sti();
     init_pit();
-    init_vdisk();
     init_pci();
-    init_vfs();
+    init_vdisk();
     ide_initialize(0x1F0, 0x3F6, 0x170, 0x376, 0x000);
+    init_vfs();
+    Register_fat_fileSys();
+    init_iso9660();
     syscall_install();
 
+    vfs_mount_disk('A','A');
+    if(vfs_change_disk('A'))
+        printf("[FileSystem]: Chang disk win!");
+    else {
+        for(;;);
+    }
     if(pcnet_find_card()){
         //init_pcnet_card();
     } else printf("[\035kernel\036]: \033Cannot found pcnet.\036\n");

kernel/timer.c

@@ -22,6 +22,10 @@ static void timer_handle(registers_t *regs) {
     io_sti();
 }
 
+void sleep(uint32_t timer){
+    clock_sleep(timer);
+}
+
 void clock_sleep(uint32_t timer){
     uint32_t sleep = tick + timer;
     while(1){

network/arp.c

@@ -1,7 +1,7 @@
 #include "../include/arp.h"
 #include "../include/etherframe.h"
 #include "../include/memory.h"
-
+#include "../include/pcnet.h"
 uint8_t ARP_flags = 1;
 uint64_t ARP_mac_address[MAX_ARP_TABLE];
 uint32_t ARP_ip_address[MAX_ARP_TABLE];
@@ -70,3 +70,40 @@ uint64_t IPParseMAC(uint32_t dstIP) {
      */
     return ARP_mac_address[ARP_write_pointer - 1];
 }
+void arp_handler(void *base) {
+    extern uint32_t ip;
+    extern uint8_t mac0;
+    struct EthernetFrame_head *header = (struct EthernetFrame_head *)(base);
+    if ((*(uint64_t *)&header->dest_mac[0] & 0xffffffffffff) ==
+        (*(uint64_t *)&mac0 & 0xffffffffffff)) { // ARP广播回应
+        struct ARPMessage *arp =
+                (struct ARPMessage *)(base + sizeof(struct EthernetFrame_head));
+        if (arp->command == 0x0200) {
+            // printk("ARP MAC Address Reply\n");
+            if (ARP_write_pointer < MAX_ARP_TABLE) {
+                ARP_mac_address[ARP_write_pointer] =
+                        *(uint64_t *)&header->src_mac[0] & 0xffffffffffff;
+                ARP_ip_address[ARP_write_pointer] = swap32(arp->src_ip);
+                ARP_write_pointer++;
+                ARP_flags = 0;
+            }
+        }
+        // 如果发送方不知道我们的MAC地址
+        // 要发ARP数据包返回给发送方 告诉发送方我的MAC地址（确立联系）
+    } else if ((*(uint64_t *)&header->dest_mac[0] & 0xffffffffffff) ==
+               0xffffffffffff) { // dest_mac = 0xffffffffffff && ARP广播请求
+        struct ARPMessage *arp =
+                (struct ARPMessage *)(base + sizeof(struct EthernetFrame_head));
+        if (arp->command == 0x0100 && arp->dest_ip == swap32(ip)) {
+            // printk("ARP MAC Address request\n");
+            uint32_t src_ip = ((arp->src_ip << 24) & 0xff000000) |
+                              ((arp->src_ip << 8) & 0x00ff0000) |
+                              ((arp->src_ip >> 8) & 0xff00) |
+                              ((arp->src_ip >> 24) & 0xff);
+            ether_frame_provider_send(*(uint64_t *)&header->src_mac[0], 0x0806,
+                                      ARP_Packet(*(uint64_t *)&header->src_mac[0],
+                                                 src_ip, *(uint64_t *)&mac0, ip, 2),
+                                      sizeof(struct ARPMessage));
+        }
+    }
+}

network/dhcp.c

@@ -65,6 +65,7 @@ int dhcp_discovery(uint8_t *mac) {
 }
 
 void dhcp_handler(void *base) {
+    printf("DHCP\n");
     struct IPV4Message *ipv4 =
             (struct IPV4Message *)(base + sizeof(struct EthernetFrame_head));
     struct UDPMessage *udp =
@@ -74,9 +75,10 @@ void dhcp_handler(void *base) {
             (struct DHCPMessage *)(base + sizeof(struct EthernetFrame_head) +
                                    sizeof(struct IPV4Message) +
                                    sizeof(struct UDPMessage));
+    printf("%d %d %d\n",dhcp->bp_options[0],dhcp->bp_options[1],dhcp->bp_options[2]);
     if (dhcp->bp_options[0] == 53 && dhcp->bp_options[1] == 1 &&
-        dhcp->bp_options[2] == DHCP_OPTION_OFFER) {
+        dhcp->opcode == 2) {
-        // printk("DHCP Offer\n");
+         printf("DHCP Offer\n");
         ip = dhcp->yiaddr;
         uint8_t nip1 = ip;
         uint8_t nip2 = ip >> 8;
@@ -86,22 +88,22 @@ void dhcp_handler(void *base) {
         //        (uint8_t)(ipv4->srcIP >> 8), (uint8_t)(ipv4->srcIP >> 16),
         //        (uint8_t)(ipv4->srcIP >> 24));
         dhcp_ip = swap32(ipv4->srcIP);
-        //printk("IP: %d.%d.%d.%d\n", nip1, nip2, nip3, nip4);
+        printf("IP: %d.%d.%d.%d\n", nip1, nip2, nip3, nip4);
         ip = swap32(ip);
 
         unsigned char *options = &dhcp->bp_options[0];
         while (options[0] != 0xff) {
             if (options[0] == MESSAGE_TYPE_DNS) {
-                // printk("DNS: %d.%d.%d.%d\n", options[2], options[3], options[4],
+                 printf("DNS: %d.%d.%d.%d\n", options[2], options[3], options[4],
-                //     options[5]);
+                     options[5]);
                 dns = swap32(*(uint32_t *)&options[2]);
             } else if (options[0] == MESSAGE_TYPE_REQ_SUBNET_MASK) {
-                // printk("Subnet Mask: %d.%d.%d.%d\n", options[2], options[3], options[4],
+                 printf("Subnet Mask: %d.%d.%d.%d\n", options[2], options[3], options[4],
-                //      options[5]);
+                      options[5]);
                 submask = swap32(*(uint32_t *)&options[2]);
             } else if (options[0] == MESSAGE_TYPE_ROUTER) {
-                // printk("Gateway: %d.%d.%d.%d\n", options[2], options[3], options[4],
+                 printf("Gateway: %d.%d.%d.%d\n", options[2], options[3], options[4],
-                //      options[5]);
+                      options[5]);
                 gateway = swap32(*(uint32_t *)&options[2]);
             }
             options += options[1] + 2;

network/etherframe.c

@@ -1,7 +1,7 @@
 #include "../include/etherframe.h"
 #include "../include/memory.h"
 #include "../include/net.h"
-
+#include "../include/pcnet.h"
 extern uint8_t mac0, mac1, mac2, mac3, mac4, mac5;
 // 以太网帧
 void ether_frame_provider_send(uint64_t dest_mac, uint16_t type, uint8_t *buffer,
@@ -31,7 +31,7 @@ void ether_frame_provider_send(uint64_t dest_mac, uint16_t type, uint8_t *buffer
     uint8_t *dst = buffer2 + sizeof(struct EthernetFrame_head);
     for (uint32_t i = 0; i < size; i++)
         dst[i] = src[i];
-    netcard_send(buffer2, sizeof(struct EthernetFrame_head) + size +
+   PcnetSend(buffer2, sizeof(struct EthernetFrame_head) + size +
                           sizeof(struct EthernetFrame_tail));
     kfree(buffer2);
 }

network/pcnet.c

@@ -6,6 +6,11 @@
 #include "../include/memory.h"
 #include "../include/printf.h"
 #include "../include/dhcp.h"
+#include "../include/etherframe.h"
+#include "../include/arp.h"
+#include "../include/ipv4.h"
+#include "../include/tcp.h"
+#include "../include/udp.h"
 
 uint8_t bus = 255, dev = 255, func = 255;
 
@@ -25,7 +30,9 @@ struct InitializationBlock initBlock;
 static struct BufferDescriptor* sendBufferDesc;
 static struct BufferDescriptor* recvBufferDesc;
 int recv = 0;
-
+static uint8_t* IP_Packet_Base[16] = {NULL, NULL, NULL, NULL, NULL, NULL,
+                                      NULL, NULL, NULL, NULL, NULL, NULL,
+                                      NULL, NULL, NULL, NULL};
 static void set_handler(int IRQ, int addr) {
     register_interrupt_handler(0x20 + IRQ, (int)addr);
 }
@@ -61,7 +68,6 @@ void Activate() {
     printf("[pcnet]: io\n");
     io_out16(io_base + RDP16, 0x41);
     printf("[pcnet]: success.\n");
-
     io_out16(io_base + RAP16, CSR4);
     uint32_t temp = io_in16(io_base + RDP16);
     io_out16(io_base + RAP16, CSR4);
@@ -91,7 +97,9 @@ static void init_Card_all() {
     mac4 = io_in8(io_base + APROM4);
     mac5 = io_in8(io_base + APROM5);
     reset_card();
+    printf("SLEEP\n");
     clock_sleep(1);
+    printf("END\n");
 
 
 
@@ -148,6 +156,7 @@ static void init_Card_all() {
     gateway = 0xFFFFFFFF;
     submask = 0xFFFFFFFF;
     dns = 0xFFFFFFFF;
+    printf("DHCP DISCOVERY %08x %08x %08x %08x %08x %08x\n",&mac0,&mac1,&mac2,&mac3,&mac4,&mac5);
     dhcp_discovery(&mac0);
     while (gateway == 0xFFFFFFFF && submask == 0xFFFFFFFF && dns == 0xFFFFFFFF &&
            ip == 0xFFFFFFFF) {
@@ -156,8 +165,8 @@ static void init_Card_all() {
 }
 
 void init_pcnet_card() {
-    printf("[\035kernel\036]: Loading pcnet driver.\n");
+    printf("[\035kernel\036]: Loading pcnet driver. %x\n",pci_get_drive_irq(bus, dev, func));
-    register_interrupt_handler(pci_get_drive_irq(bus, dev, func),PCNET_IRQ);
+    register_interrupt_handler(pci_get_drive_irq(bus, dev, func) + 0x20,PCNET_IRQ);
     // 2,写COMMAND和STATUS寄存器
     uint32_t conf = pci_read_command_status(bus, dev, func);
     conf &= 0xffff0000;  // 保留STATUS寄存器，清除COMMAND寄存器
@@ -170,7 +179,7 @@ void init_pcnet_card() {
 }
 
 void PCNET_IRQ(registers_t *reg) {
-
+    printf("PCNET IRQ");
     io_out16(io_base + RAP16, CSR0);
     uint16_t temp = io_in16(io_base + RDP16);
 
@@ -182,12 +191,91 @@ void PCNET_IRQ(registers_t *reg) {
 
     if ((temp & 0x0100) == 0x0100)
         printf("PCNET INIT DONE\n");
+    io_out8(0xa0, (0x60 + pci_get_drive_irq(bus, dev, func) - 0x8));
+    io_out8(0x20, 0x62);
     return;
 }
+static uint32_t Find_IP_Packet(uint16_t ident) {
+    for (int i = 0; i != 16; i++) {
+        if (IP_Packet_Base[i] != NULL) {
+            struct IPV4Message* ipv4 =
+                    (struct IPV4Message*)(IP_Packet_Base[i] +
+                                          sizeof(struct EthernetFrame_head));
+            if (swap16(ipv4->ident) == ident) {
+                return i;
+            }
+        }
+    }
+    return -1;
+}
+static void IP_Assembling(struct IPV4Message* ipv4, unsigned char* RawData) {
+    uint32_t i_p = Find_IP_Packet(swap16(ipv4->ident));
+    struct IPV4Message* ipv4_p =
+            (struct IPV4Message*)(IP_Packet_Base[i_p] +
+                                  sizeof(struct EthernetFrame_head));
+    uint32_t size_p = swap16(ipv4_p->totalLength);
+    ipv4_p->totalLength =
+            swap16(swap16(ipv4->totalLength) + swap16(ipv4_p->totalLength) -
+                   sizeof(struct IPV4Message));
+    IP_Packet_Base[i_p] = (uint8_t*)realloc((void*)IP_Packet_Base[i_p],
+                                            swap16(ipv4_p->totalLength));
+    memcpy(
+            (void*)(IP_Packet_Base[i_p] + size_p),
+            RawData + sizeof(struct EthernetFrame_head) + sizeof(struct IPV4Message),
+            swap16(ipv4->totalLength) - sizeof(struct IPV4Message));
+    return;
+}
+void Card_Recv_Handler(unsigned char* RawData) {
+    struct EthernetFrame_head* header = (struct EthernetFrame_head*)(RawData);
+    if (header->type == swap16(IP_PROTOCOL)) {  // IP数据报
+        struct IPV4Message* ipv4 =
+                (struct IPV4Message*)(RawData + sizeof(struct EthernetFrame_head));
+        if (ipv4->version == 4) {
+            if ((swap16(ipv4->flagsAndOffset) >> IP_MF) & 1) {
+                if (Find_IP_Packet(swap16(ipv4->ident)) == -1) {
+                    for (int i = 0; i != 16; i++) {
+                        if (IP_Packet_Base[i] == NULL) {
+                            IP_Packet_Base[i] =
+                                    (uint8_t*)kmalloc(swap16(ipv4->totalLength) +
+                                                     sizeof(struct EthernetFrame_head));
+                            memcpy((void*)IP_Packet_Base[i], RawData,
+                                   swap16(ipv4->totalLength) +
+                                   sizeof(struct EthernetFrame_head));
+                            break;
+                        }
+                    }
+                } else {
+                    IP_Assembling(ipv4, RawData);
+                }
+            } else if (!((swap16(ipv4->flagsAndOffset) >> IP_MF) & 1)) {
+                uint32_t i_p = Find_IP_Packet(swap16(ipv4->ident));
+                void* base = RawData;
+                if (i_p != -1) {
+                    IP_Assembling(ipv4, RawData);
+                    base = (void*)IP_Packet_Base[i_p];
+                }
+               // if (ipv4->protocol == ICMP_PROTOCOL) {  // ICMP
+                   // icmp_handler(base);
+                /*} else*/ if (ipv4->protocol == UDP_PROTOCOL) {  // UDP
+                    printf("UDP\n");
+                    udp_handler(base);
+                } else if (ipv4->protocol == TCP_PROTOCOL) {  // TCP
+                    tcp_handler(base);
+                }
+                if (i_p != -1) {
+                    kfree((void*)IP_Packet_Base[i_p]);
+                    IP_Packet_Base[i_p] = NULL;
+                }
+            }
+        }
+    } else if (header->type == swap16(ARP_PROTOCOL)) {  // ARP
+        arp_handler(RawData);
+    }
+}
 
 void Recv() {
     recv = 1;
-    //printk("\nPCNET RECV: ");
+    printk("\nPCNET RECV: ");
     for (; (recvBufferDesc[currentRecvBuffer].flags & 0x80000000) == 0;
            currentRecvBuffer = (currentRecvBuffer + 1) % 8) {
         if (!(recvBufferDesc[currentRecvBuffer].flags & 0x40000000) &&
@@ -204,7 +292,7 @@ void Recv() {
         }
         recv = 0;
         currentRecvBuffer = 0;
-        //TODO  Card_Recv_Handler(recvBufferDesc[currentRecvBuffer].address);
+        Card_Recv_Handler(recvBufferDesc[currentRecvBuffer].address);
 
         memclean(recvBufferDesc[currentRecvBuffer].address, 2048);
         recvBufferDesc[currentRecvBuffer].flags2 = 0;
@@ -214,3 +302,32 @@ void Recv() {
 
 }
 
+void PcnetSend(uint8_t* buffer, int size) {
+    while(recv);
+    int sendDesc = currentSendBuffer;
+    currentSendBuffer = (currentSendBuffer + 1) % 8;
+    memclean(sendBufferDesc[currentSendBuffer].address, 2048);
+    if (size > MTU + sizeof(struct EthernetFrame_head) +
+               sizeof(struct EthernetFrame_tail))
+        size = MTU + sizeof(struct EthernetFrame_head) +
+               sizeof(struct EthernetFrame_tail);
+
+    for (uint8_t *src = buffer + size - 1,
+                 *dst = (uint8_t*)(sendBufferDesc[sendDesc].address + size - 1);
+         src >= buffer; src--, dst--)
+        *dst = *src;
+
+    //printk("SENDING: ");
+    for (int i = 0; i < (size > 128 ? 128 : size); i++) {
+        //printk("%02x ", buffer[i]);
+    }
+    //printk("\n");
+    sendBufferDesc[sendDesc].avail = 0;
+    sendBufferDesc[sendDesc].flags = 0x8300f000 | ((uint16_t)((-size) & 0xfff));
+    sendBufferDesc[sendDesc].flags2 = 0;
+
+    io_out16(io_base + RAP16, CSR0);
+    io_out16(io_base + RDP16, 0x48);
+
+    currentSendBuffer = 0;
+}

sysapp/shell.c

@@ -5,6 +5,7 @@
 #include "../include/task.h"
 #include "../include/cmos.h"
 #include "../include/vdisk.h"
+#include "../include/vfs.h"
 
 extern Queue *key_char_queue;
 extern vdisk vdisk_ctl[10];
@@ -89,13 +90,39 @@ void cmd_proc(int argc, char **argv){
 
 void cmd_date() {
     printf("System Time:           %s\n", get_date_time());
-    printf("Memory Usage: [%dKB] | All Size: [%dMB]\n",memory_usage()/1024,(KHEAP_START+KHEAP_INITIAL_SIZE)/1024/1024);
+    printf("Memory Usage: [%dKB] | All Size: [%dMB]\n", memory_usage() / 1024,
+           (KHEAP_START + KHEAP_INITIAL_SIZE) / 1024 / 1024);
     print_cpu_id();
+
     vga_writestring("\n");
 }
 
 void cmd_ls() {
+    List *ls = vfs_listfile("");
+    int files = 0, dirs = 0;
 
+    for (int i = 1; FindForCount(i, ls) != NULL; i++) {
+        vfs_file *d = (vfs_file *) FindForCount(i, ls)->val;
+        char *type;
+        if (d->type == DIR) {
+            type = "<DIR>"; //文件夹
+            dirs++;
+        } else if (d->type == HID) {
+            type = "<HID>"; //隐藏文件
+            files++;
+        } else {
+            type = "<FILE>"; //文件
+            files++;
+        }
+        printf("%-13s %-6s  %d \n", d->name, type, d->size / 1024);
+        kfree(d);
+    }
+    printf("-----------------------------------------\n");
+    printf("Name          Type     Size(KB)\n"
+           "All directory: %d | All Files: %d\n",dirs, files);
+
+    DeleteList(ls);
+    kfree(ls);
 }
 
 void cmd_mkdir(int argc, char **argv) {
@@ -103,8 +130,17 @@ void cmd_mkdir(int argc, char **argv) {
         printf("\033[Shell-MKDIR]: If there are too few parameters, please specify the directory name.\036\n");
         return;
     }
-    printf("Create directory: %s\n",argv[1]);
 
+    vfs_file *file = get_cur_file(argv[1]);
+
+    if(file != NULL){
+        printf("This file is exist.\n");
+        return;
+    }
+
+    if(!vfs_createdict(argv[1])){
+        printf("Illegal create.\n");
+    } else printf("Create directory: %s\n", argv[1]);
 }
 
 void cmd_del(int argc, char **argv) {
@@ -113,6 +149,20 @@ void cmd_del(int argc, char **argv) {
         return;
     }
 
+    vfs_file *file = get_cur_file(argv[1]);
+
+    if(file == NULL){
+        printf("Cannot found file.\n");
+        return;
+    }
+
+    bool  b;
+    if(file->type == DIR){
+        b = vfs_deldir(argv[1]);
+    } else b = vfs_delfile(argv[1]);
+    if(!b){
+        printf("Illegal delete!\n");
+    }
 }
 
 void cmd_reset() {
@@ -129,7 +179,8 @@ void cmd_debug(){
     printf("\032Copyright 2024 XIAOYI12 (Build by GCC i686-elf-tools)\036\n");
     extern int acpi_enable_flag;
     extern uint8_t *rsdp_address;
-    printf("ACPI: Enable: %s | RSDP Address: 0x%08x\n",acpi_enable_flag?"\035ENABLE\036":"\033DISABLE\036",rsdp_address);
+    printf("ACPI: Enable: %s | RSDP Address: 0x%08x\n", acpi_enable_flag ? "\035ENABLE\036" : "\033DISABLE\036",
+           rsdp_address);
     int index = 0;
     print_proc_t(&index, get_current(), get_current()->next, 0);
     printf("Process Runnable: %d\n", index);
@@ -153,6 +204,14 @@ void cmd_debug(){
     printf("ESI: 0x%08x | EDI 0x%08x | EBP 0x%08x | EFLAGS 0x%08x\n", esi, edi, ebp, get_current()->context.eflags);
 }
 
+void cmd_cd(int argc, char **argv) {
+    if (argc == 1) {
+        vga_writestring("\033[Shell-CD]: If there are too few parameters, please specify the path.\036\n");
+        return;
+    }
+    if (vfs_change_path(argv[1]) == 0) printf("Invalid path.\n");
+}
+
 void cmd_disk(int argc, char **argv) {
     if (argc > 1) {
         if (!strcmp("list", argv[1])) {
@@ -224,7 +283,7 @@ char* user(){
 }
 
 void setup_shell() {
-    char* user1 = user();
+    char *user1 = "default";//user();
     vga_clear();
     printf("%s for x86 [Version %s] \n", OS_NAME, OS_VERSION);
     printf("\032Copyright 2024 XIAOYI12 (Build by GCC i686-elf-tools)\036\n");
@@ -232,9 +291,11 @@ void setup_shell(){
     char com[MAX_COMMAND_LEN];
     char *argv[MAX_ARG_NR];
     int argc = -1;
+    char *buffer[255];
 
     while (1) {
-        printf("\035%s/>\036 ",user1);
+        vfs_getPath(buffer);
+        printf("\035%s %s\\>\036 ", user1, buffer);
         if (gets(com, MAX_COMMAND_LEN) <= 0) continue;
         argc = cmd_parse(com, argv, ' ');
 
@@ -267,6 +328,8 @@ void setup_shell(){
             cmd_debug();
         else if (!strcmp("disk", argv[0]))
             cmd_disk(argc, argv);
+        else if (!strcmp("cd", argv[0]))
+            cmd_cd(argc, argv);
         else if (!strcmp("help", argv[0]) || !strcmp("?", argv[0]) || !strcmp("h", argv[0])) {
             vga_writestring("-=[\037CoolPotShell Helper\036]=-\n");
             vga_writestring("help ? h              \032Print shell help info.\036\n");
@@ -281,6 +344,7 @@ void setup_shell(){
             vga_writestring("shutdown exit         \032Shutdown OS.\036\n");
             vga_writestring("debug                 \032Print os debug info.\036\n");
             vga_writestring("disk  [list|<ID>]     \032List or view disks.\036\n");
+            vga_writestring("cd  <path>            \032Change shell top directory.\036\n");
         } else printf("\033[Shell]: Unknown command '%s'.\036\n", argv[0]);
     }
 }

util/common.c

@@ -152,6 +152,7 @@ char *strcpy(char *dest, const char *src) {
     do {
         *dest++ = *src++;
     } while (*src != 0);
+    *dest = 0;
 }
 
 char *strcat(char *dest, const char *src) {
@@ -477,14 +478,10 @@ char *uint32_to_str_oct(uint32_t num, int flag, int width) {
     return str_first;
 }
 
-char *insert_str(char *buf, const char *str) {
+void insert_str(char *str, char *insert_str, int pos) {
-    char *p = buf;
+    for (int i = 0; i < strlen(insert_str); i++) {
-
+        insert_char(str, pos + i, insert_str[i]);
-    while (*str) {
-        *p++ = *str++;
     }
-
-    return p;
 }
 
 void assert(int b, char *message) {