493 lines
12 KiB
C
493 lines
12 KiB
C
//#define __DEBUG__
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#include "types.h"
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#include "ata.h"
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#include "text.h"
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#include "util.h"
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#include "atapi_imp.h"
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#include "iso9660.h"
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#include "elf.h"
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#include "multiboot.h"
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#define DEFAULT_ROOT_CMDLINE "root=/dev/ram0,nocache "
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#define DEFAULT_GRAPHICAL_CMDLINE "start=live-session "
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#define DEFAULT_TEXT_CMDLINE "start=--vga "
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#define DEFAULT_VID_CMDLINE "vid=auto,1440,900 "
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#define MIGRATE_CMDLINE "start=--migrate _"
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#define DEBUG_LOG_CMDLINE "logtoserial=3 "
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static char cmdline[1024] = {0};
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static int read_scancode(void) {
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while (!(inportb(0x64) & 1));
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int out;
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while (inportb(0x64) & 1) {
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out = inportb(0x60);
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}
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return out;
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}
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static void restore_root(void) {
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memcpy(dir_entry, (iso_9660_directory_entry_t *)&root->root, sizeof(iso_9660_directory_entry_t));
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#if 0
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print("Root restored.");
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print("\n Entry len: "); print_hex( dir_entry->length);
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print("\n File start: "); print_hex( dir_entry->extent_start_LSB);
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print("\n File len: "); print_hex( dir_entry->extent_length_LSB);
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print("\n");
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#endif
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}
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static void restore_mod(void) {
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memcpy(dir_entry, (iso_9660_directory_entry_t *)mod_dir, sizeof(iso_9660_directory_entry_t));
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#if 0
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print("mod restored.");
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print("\n Entry len: "); print_hex( dir_entry->length);
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print("\n File start: "); print_hex( dir_entry->extent_start_LSB);
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print("\n File len: "); print_hex( dir_entry->extent_length_LSB);
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print("\n");
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#endif
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}
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#define KERNEL_LOAD_START 0x300000
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static char * modules[] = {
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"ZERO.KO", // 0
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"RANDOM.KO", // 1
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"SERIAL.KO", // 2
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"DEBUG_SH.KO", // 3
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"PROCFS.KO", // 4
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"TMPFS.KO", // 5
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"ATA.KO", // 6
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"EXT2.KO", // 7
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"ISO9660.KO", // 8
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"PS2KBD.KO", // 9
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"PS2MOUSE.KO", // 10
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"LFBVIDEO.KO", // 11
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"VBOXGUES.KO", // 12
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"VMWARE.KO", // 13
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"VIDSET.KO", // 14
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"PACKETFS.KO", // 15
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"SND.KO", // 16
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"AC97.KO", // 17
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"NET.KO", // 18
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"PCNET.KO", // 19
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"RTL.KO", // 20
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"E1000.KO", // 21
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"PCSPKR.KO", // 22
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0
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};
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static mboot_mod_t modules_mboot[sizeof(modules)/sizeof(*modules)] = {
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{0,0,0,1}
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};
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static struct multiboot multiboot_header = {
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/* flags; */ MULTIBOOT_FLAG_CMDLINE | MULTIBOOT_FLAG_MODS | MULTIBOOT_FLAG_MEM | MULTIBOOT_FLAG_MMAP,
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/* mem_lower; */ 0x100000,
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/* mem_upper; */ 0x640000,
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/* boot_device; */ 0,
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/* cmdline; */ 0,
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/* mods_count; */ sizeof(modules)/sizeof(*modules),
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/* mods_addr; */ (uintptr_t)&modules_mboot,
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/* num; */ 0,
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/* size; */ 0,
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/* addr; */ 0,
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/* shndx; */ 0,
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/* mmap_length; */ 0,
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/* mmap_addr; */ 0,
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/* drives_length; */ 0,
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/* drives_addr; */ 0,
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/* config_table; */ 0,
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/* boot_loader_name; */ 0,
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/* apm_table; */ 0,
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/* vbe_control_info; */ 0,
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/* vbe_mode_info; */ 0,
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/* vbe_mode; */ 0,
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/* vbe_interface_seg; */ 0,
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/* vbe_interface_off; */ 0,
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/* vbe_interface_len; */ 0,
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};
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static long ramdisk_off = 1;
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static long ramdisk_len = 1;
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extern void jump_to_main(void);
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int _eax = 1;
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int _ebx = 1;
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int _xmain = 1;
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struct mmap_entry {
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uint64_t base;
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uint64_t len;
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uint32_t type;
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uint32_t reserved;
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};
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extern unsigned short mmap_ent;
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extern unsigned short lower_mem;
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static void move_kernel(void) {
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clear();
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print("Relocating kernel...\n");
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Elf32_Header * header = (Elf32_Header *)KERNEL_LOAD_START;
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if (header->e_ident[0] != ELFMAG0 ||
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header->e_ident[1] != ELFMAG1 ||
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header->e_ident[2] != ELFMAG2 ||
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header->e_ident[3] != ELFMAG3) {
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print("Kernel is invalid?\n");
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}
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uintptr_t entry = (uintptr_t)header->e_entry;
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for (uintptr_t x = 0; x < (uint32_t)header->e_phentsize * header->e_phnum; x += header->e_phentsize) {
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Elf32_Phdr * phdr = (Elf32_Phdr *)((uint8_t*)KERNEL_LOAD_START + header->e_phoff + x);
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if (phdr->p_type == PT_LOAD) {
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//read_fs(file, phdr->p_offset, phdr->p_filesz, (uint8_t *)phdr->p_vaddr);
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print("Loading a Phdr... ");
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print_hex(phdr->p_vaddr);
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print(" ");
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print_hex(phdr->p_offset);
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print(" ");
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print_hex(phdr->p_filesz);
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print("\n");
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memcpy((uint8_t*)phdr->p_vaddr, (uint8_t*)KERNEL_LOAD_START + phdr->p_offset, phdr->p_filesz);
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long r = phdr->p_filesz;
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while (r < phdr->p_memsz) {
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*(char *)(phdr->p_vaddr + r) = 0;
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r++;
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}
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}
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}
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print("Setting up memory map...\n");
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print_hex(mmap_ent);
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print("\n");
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memset((void*)KERNEL_LOAD_START, 0x00, 1024);
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mboot_memmap_t * mmap = (void*)KERNEL_LOAD_START;
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multiboot_header.mmap_addr = (uintptr_t)mmap;
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struct mmap_entry * e820 = (void*)0x5000;
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uint64_t upper_mem = 0;
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for (int i = 0; i < mmap_ent; ++i) {
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print("entry "); print_hex(i); print("\n");
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print("base: "); print_hex((uint32_t)e820[i].base); print("\n");
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print("type: "); print_hex(e820[i].type); print("\n");
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mmap->size = sizeof(uint64_t) * 2 + sizeof(uintptr_t);
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mmap->base_addr = e820[i].base;
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mmap->length = e820[i].len;
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mmap->type = e820[i].type;
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if (mmap->type == 1 && mmap->base_addr >= 0x100000) {
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upper_mem += mmap->length;
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}
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mmap = (mboot_memmap_t *) ((uintptr_t)mmap + mmap->size + sizeof(uintptr_t));
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}
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print("lower "); print_hex(lower_mem); print("KB\n");
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multiboot_header.mem_lower = 1024;
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print("upper ");
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print_hex(upper_mem >> 32);
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print_hex(upper_mem);
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print("\n");
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multiboot_header.mem_upper = upper_mem / 1024;
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int foo;
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//__asm__ __volatile__("jmp %1" : "=a"(foo) : "a" (MULTIBOOT_EAX_MAGIC), "b"((unsigned int)multiboot_header), "r"((unsigned int)entry));
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_eax = MULTIBOOT_EAX_MAGIC;
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_ebx = (unsigned int)&multiboot_header;
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_xmain = entry;
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jump_to_main();
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}
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static void do_it(struct ata_device * _device) {
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device = _device;
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if (device->atapi_sector_size != 2048) {
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print_hex(device->atapi_sector_size);
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print("\n - bad sector size\n");
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return;
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}
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for (int i = 0x10; i < 0x15; ++i) {
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ata_device_read_sector_atapi(device, i, (uint8_t *)root);
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switch (root->type) {
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case 1:
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root_sector = i;
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goto done;
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case 0xFF:
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return;
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}
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}
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return;
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done:
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restore_root();
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if (navigate("KERNEL.")) {
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print("Found kernel.\n");
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print_hex(dir_entry->extent_start_LSB); print(" ");
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print_hex(dir_entry->extent_length_LSB); print("\n");
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long offset = 0;
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for (int i = dir_entry->extent_start_LSB; i < dir_entry->extent_start_LSB + dir_entry->extent_length_LSB / 2048 + 1; ++i, offset += 2048) {
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ata_device_read_sector_atapi(device, i, (uint8_t *)KERNEL_LOAD_START + offset);
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}
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restore_root();
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if (navigate("MOD")) {
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memcpy(mod_dir, dir_entry, sizeof(iso_9660_directory_entry_t));
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print("Scanning modules...\n");
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char ** c = modules;
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int j = 0;
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while (*c) {
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print("load "); print(*c); print("\n");
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if (!navigate(*c)) {
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print("Failed to locate module! [");
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print(*c);
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multiboot_header.mods_count--;
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print("]\n");
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} else {
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modules_mboot[j].mod_start = KERNEL_LOAD_START + offset;
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modules_mboot[j].mod_end = KERNEL_LOAD_START + offset + dir_entry->extent_length_LSB;
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for (int i = dir_entry->extent_start_LSB; i < dir_entry->extent_start_LSB + dir_entry->extent_length_LSB / 2048 + 1; ++i, offset += 2048) {
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ata_device_read_sector_atapi(device, i, (uint8_t *)KERNEL_LOAD_START + offset);
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}
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j++;
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}
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c++;
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restore_mod();
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}
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print("Done.\n");
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restore_root();
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if (navigate("RAMDISK.IMG")) {
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clear_();
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ramdisk_off = KERNEL_LOAD_START + offset;
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ramdisk_len = dir_entry->extent_length_LSB;
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modules_mboot[multiboot_header.mods_count-1].mod_start = ramdisk_off;
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modules_mboot[multiboot_header.mods_count-1].mod_end = ramdisk_off + ramdisk_len;
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print_("\n\n\n\n\n\n\n");
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print_banner("Loading ramdisk...");
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print_("\n\n\n");
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attr = 0x70;
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for (int i = dir_entry->extent_start_LSB; i < dir_entry->extent_start_LSB + dir_entry->extent_length_LSB / 2048 + 1; ++i, offset += 2048) {
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if (i % ((dir_entry->extent_length_LSB / 2048) / 80) == 0) {
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print_(" ");
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}
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ata_device_read_sector_atapi(device, i, (uint8_t *)KERNEL_LOAD_START + offset);
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}
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attr = 0x07;
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print("Done.\n");
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move_kernel();
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}
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} else {
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print("No mod directory?\n");
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}
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} else {
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print("boo\n");
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}
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return;
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}
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static int sel_max = 12;
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static int sel = 0;
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void toggle(int ndx, int value, char *str) {
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attr = sel == ndx ? 0x70 : 0x07;
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if (value) {
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print_(" [X] ");
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} else {
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print_(" [ ] ");
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}
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print_(str);
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print_("\n");
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}
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int kmain() {
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int boot_mode = 0;
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int _normal_ata = 1;
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int _legacy_ata = 0;
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int _debug_shell = 1;
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int _video = 1;
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int _vbox = 1;
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int _vmware = 1;
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int _sound = 1;
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int _net = 1;
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int _migrate = 1;
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outportb(0x3D4, 14);
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outportb(0x3D5, 0xFF);
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outportb(0x3D4, 15);
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outportb(0x3D5, 0xFF);
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inportb(0x3DA);
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outportb(0x3C0, 0x30);
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char b = inportb(0x3C1);
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b &= ~8;
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outportb(0x3c0, b);
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clear_();
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do {
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x = 0;
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y = 0;
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attr = 0x1f;
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print_banner("ToaruOS-NIH Bootloader v1.1");
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attr = 0x07;
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print_("\n");
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attr = sel == 0 ? 0x70 : 0x07;
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print_(" Normal Boot\n");
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attr = sel == 1 ? 0x70 : 0x07;
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print_(" VGA Text Mode\n");
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// put a gap
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attr = 0x07;
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print_("\n");
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toggle(2, _debug, "Enable debug output.");
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toggle(3, _legacy_ata, "Enable legacy ATA driver.");
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toggle(4, _normal_ata, "Enable DMA ATA driver.");
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toggle(5, _debug_shell, "Enable debug shell.");
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toggle(6, _video, "Enable video modules.");
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toggle(7, _vbox, "Enable VirtualBox Guest Additions.");
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toggle(8, _vmware, "Enable VMWare mouse driver.");
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toggle(9, _sound, "Enable audio drivers.");
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toggle(10,_net, "Enable network drivers.");
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toggle(11,_migrate,"Enable copying of ramdisk to tmpfs (writable root).");
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attr = 0x07;
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print_("\n\n\n");
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print_banner("Press <Enter> or select a menu option with \030/\031.");
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print_("\n");
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print_banner("ToaruOS is free software under the NCSA license.");
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print_("\n");
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print_banner("https://toaruos.org - https://gitlab.com/toaruos");
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int s = read_scancode();
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if (s == 0x50) {
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sel = (sel + 1) % sel_max;
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continue;
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} else if (s == 0x48) {
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sel = (sel_max + sel - 1) % sel_max;
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continue;
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} else if (s == 0x1c) {
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if (sel == 0 || sel == 1) {
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boot_mode = sel;
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break;
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} else if (sel == 2) {
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_debug = !_debug;
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continue;
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} else if (sel == 3) {
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_legacy_ata = !_legacy_ata;
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} else if (sel == 4) {
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_normal_ata = !_normal_ata;
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} else if (sel == 5) {
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_debug_shell = !_debug_shell;
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} else if (sel == 6) {
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_video = !_video;
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} else if (sel == 7) {
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_vbox = !_vbox;
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} else if (sel == 8) {
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_vmware = !_vmware;
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} else if (sel == 9) {
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_sound = !_sound;
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} else if (sel == 10) {
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_net = !_net;
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} else if (sel == 11) {
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_migrate = !_migrate;
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}
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}
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} while (1);
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strcat(cmdline, DEFAULT_ROOT_CMDLINE);
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if (_migrate) {
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strcat(cmdline, MIGRATE_CMDLINE);
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}
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if (boot_mode == 0) {
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strcat(cmdline, DEFAULT_GRAPHICAL_CMDLINE);
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strcat(cmdline, DEFAULT_VID_CMDLINE);
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} else if (boot_mode == 1) {
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strcat(cmdline, DEFAULT_TEXT_CMDLINE);
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}
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if (_debug) {
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strcat(cmdline, DEBUG_LOG_CMDLINE);
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}
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multiboot_header.cmdline = (uintptr_t)cmdline;
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if (!_normal_ata) {
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modules[6] = "NONE";
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}
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if (_legacy_ata) {
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modules[6] = "ATAOLD.KO";
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}
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if (!_debug_shell) {
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modules[3] = "NONE";
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modules[14] = "NONE";
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}
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if (!_video) {
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modules[11] = "NONE";
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modules[12] = "NONE";
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modules[13] = "NONE";
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modules[14] = "NONE";
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}
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if (!_vmware) {
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modules[13] = "NONE";
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}
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if (!_vbox) {
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modules[12] = "NONE";
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}
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if (!_sound) {
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modules[16] = "NONE";
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modules[17] = "NONE";
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}
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if (!_net) {
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modules[18] = "NONE";
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modules[19] = "NONE";
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modules[20] = "NONE";
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modules[21] = "NONE";
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}
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clear_();
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ata_device_detect(&ata_primary_master);
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ata_device_detect(&ata_primary_slave);
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ata_device_detect(&ata_secondary_master);
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ata_device_detect(&ata_secondary_slave);
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if (ata_primary_master.is_atapi) {
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do_it(&ata_primary_master);
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}
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if (ata_primary_slave.is_atapi) {
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do_it(&ata_primary_slave);
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}
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if (ata_secondary_master.is_atapi) {
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do_it(&ata_secondary_master);
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}
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if (ata_secondary_slave.is_atapi) {
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do_it(&ata_secondary_slave);
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}
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while (1);
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}
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