mirror of
https://github.com/vivier/EMILE.git
synced 2024-10-31 20:05:01 +00:00
546 lines
13 KiB
C
546 lines
13 KiB
C
/*
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*
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* (c) 2004-2006 Laurent Vivier <Laurent@lvivier.info>
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*
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* Some parts from mkisofs/apple_driver.c, (c) James Pearson 17/5/98
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*
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* By extracting a driver from an Apple CD, you become liable to obey
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* Apple Computer, Inc. Software License Agreements.
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*
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*/
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#define DRIVER_SIZE (64*1024)
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#define FIRST_PATH "/boot/emile/first_scsi"
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#define SECOND_PATH "/boot/emile/m68k-second_scsi"
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#define DRIVER_PATH "/lib/emile/apple_driver"
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#include <stdio.h>
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#include <getopt.h>
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#include <string.h>
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#include <stdlib.h>
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#include <libgen.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <libmap.h>
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#include <emile.h>
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#include <libemile.h>
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#include <libiso9660.h>
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#include <libstream.h>
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#include "device.h"
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#define COMMAND "/usr/bin/mkisofs %s -hfs -joliet -R -boot-hfs-file %s -graft-points -o %s"
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enum {
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ARG_NONE = 0,
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ARG_HELP ='h',
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ARG_VERBOSE = 'v',
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ARG_FIRST = 'f',
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ARG_SECOND = 's',
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ARG_KERNEL = 'k',
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ARG_RAMDISK = 'r',
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ARG_APPEND = 'a',
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ARG_APPLEDRIVER = 'd',
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ARG_EMILEDRIVER = 'e',
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ARG_CONFIG = 'c',
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};
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static struct option long_options[] =
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{
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{"help", 0, NULL, ARG_HELP },
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{"verbose", 0, NULL, ARG_VERBOSE },
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{"first", 1, NULL, ARG_FIRST },
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{"second", 1, NULL, ARG_SECOND },
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{"kernel", 1, NULL, ARG_KERNEL },
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{"ramdisk", 1, NULL, ARG_RAMDISK },
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{"append", 1, NULL, ARG_APPEND },
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{"appledriver", 1, NULL, ARG_APPLEDRIVER },
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{"emiledriver", 1, NULL, ARG_EMILEDRIVER },
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{"config", 1, NULL, ARG_CONFIG },
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{NULL, 0, NULL, 0 },
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};
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static void usage(int argc, char** argv)
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{
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fprintf(stderr, "Usage %s [FLAGS] filename pathspec [pathspec ...]\n",
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argv[0]);
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fprintf(stderr, "Create and EMILE bootable CDROM\n");
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fprintf(stderr, " -h, --help display this text\n");
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fprintf(stderr, " -v, --verbose verbose mode\n");
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fprintf(stderr, " -f, --first=FILE "
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"first level to copy to CDROM\n");
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fprintf(stderr, " -s, --second=FILE "
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"second level to copy to CDROM\n");
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fprintf(stderr, " -k, --kernel=PATH "
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"path of the kernel on CDROM\n");
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fprintf(stderr, " -r, --ramdisk=PATH "
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"path of ramdisk on CDROM\n");
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fprintf(stderr, " -a, --append=ARG "
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"set kernel command line\n");
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fprintf(stderr, " -d, --appledriver=FILE "
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"appledriver to copy to CDROM\n");
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fprintf(stderr, " -e, --emiledriver=FILE "
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"emiledriver to copy to CDROM\n");
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fprintf(stderr, " -c, --config=FILE "
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"path of configuration file\n");
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fprintf(stderr, "\nbuild: \n%s\n", SIGNATURE);
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}
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#define BLOCKSIZE (2048)
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static int create_apple_driver(char *temp, char *appledriver, char *first_level)
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{
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struct DriverDescriptor block0;
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struct Partition map2048;
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struct Partition map512;
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FILE* fd;
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int fd_driver;
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char *buffer;
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unsigned char *driver;
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struct stat st;
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int driver_size;
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/* read apple driver */
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fd_driver = open(appledriver, O_RDONLY);
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if (fd_driver == -1)
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{
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fprintf(stderr, "Cannot open %s\n", appledriver);
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return -1;
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}
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fstat(fd_driver, &st);
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driver_size = ((st.st_size + DRIVER_SIZE - 1) / DRIVER_SIZE) *
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DRIVER_SIZE;
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driver = malloc(driver_size);
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memset(driver, 0, driver_size);
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if (driver == NULL)
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{
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fprintf(stderr, "Cannot malloc %d bytes\n", driver_size);
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return -1;
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}
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read(fd_driver, driver, st.st_size);
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close(fd_driver);
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/* HFS CD Label Block 512 bytes
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* Driver Partition Map (for 2048 byte blocks) 512 bytes
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* Driver Partition Map (for 512 byte blocks) 512 bytes
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* Empty 512 bytes
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* Driver Partition N x 2048 bytes
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* HFS Partition Boot Block 1024 bytes
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*/
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memset(&block0, 0, sizeof(block0));
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write_short((u_int16_t*)&block0.Sig, DD_SIGNATURE);
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write_short((u_int16_t*)&block0.BlkSize, BLOCKSIZE);
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write_long((u_int32_t*)&block0.BlkCount, 0); // set by mkisofs
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write_short((u_int16_t*)&block0.DevType, 1);
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write_short((u_int16_t*)&block0.DevId, 1);
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write_long((u_int32_t*)&block0.Data, 0);
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write_short((u_int16_t*)&block0.DrvrCount, 1);
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write_long((u_int32_t*)&block0.DrvInfo[0].Block, 0);
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write_short((u_int16_t*)&block0.DrvInfo[0].Size, (driver_size + BLOCKSIZE - 1) / BLOCKSIZE);
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write_short((u_int16_t*)&block0.DrvInfo[0].Type, kDriverTypeMacSCSI);
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memset(&map512, 0, sizeof(map512));
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write_short((u_int16_t*)&map512.Sig, MAP_SIGNATURE);
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write_long((u_int32_t*)&map512.PartBlkCnt, (driver_size + 512 - 1) / 512);
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write_long((u_int32_t*)&map512.PyPartStart,0);
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strncpy(map512.PartName, "Macintosh", 32);
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if (first_level == NULL)
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strncpy(map512.PartType, APPLE_DRIVER_EMILE, 32);
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else
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strncpy(map512.PartType, APPLE_DRIVER43, 32);
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write_long((u_int32_t*)&map512.LgDataStart, 0);
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write_long((u_int32_t*)&map512.DataCnt, 0);
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write_long((u_int32_t*)&map512.PartStatus, kPartitionAUXIsValid |
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kPartitionAUXIsAllocated |
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kPartitionAUXIsInUse |
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kPartitionAUXIsBootValid |
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kPartitionAUXIsReadable |
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kPartitionAUXIsWriteable |
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kPartitionAUXIsBootCodePositionIndependent |
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kPartitionIsChainCompatible |
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kPartitionIsRealDeviceDriver);
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write_long((u_int32_t*)&map512.LgBootStart, 0);
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write_long((u_int32_t*)&map512.BootSize, st.st_size);
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write_long((u_int32_t*)&map512.BootAddr, 0);
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write_long((u_int32_t*)&map512.BootAddr2, 0);
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write_long((u_int32_t*)&map512.BootEntry, 0);
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write_long((u_int32_t*)&map512.BootEntry2, 0);
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write_long((u_int32_t*)&map512.BootCksum, emile_checksum(driver, st.st_size));
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strncpy(map512.Processor, "68000", 16);
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write_long((u_int32_t*)map512.Pad, kSCSICDDriverSignature);
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map2048 = map512;
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write_long((u_int32_t*)&map2048.PartBlkCnt, (driver_size + BLOCKSIZE - 1) / BLOCKSIZE);
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strcpy(temp, "/tmp/emile-mkisofs-XXXXXX");
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mkstemp(temp);
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fd = fopen(temp, "w");
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fwrite(&block0, 1, sizeof(block0), fd);
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fwrite(&map2048, 1, sizeof(map2048), fd);
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fwrite(&map512, 1, sizeof(map512), fd);
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memset(&map512, 0, sizeof(map512));
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fwrite(&map512, 1, sizeof(map512), fd);
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fwrite(driver, driver_size, 1, fd);
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free(driver);
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/* read and write bootblock */
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buffer = malloc(1024);
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if (first_level == NULL) {
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memset(buffer, 0, 1024);
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/* genisoimage needs the bootblock signature */
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buffer[0] = 0x4c;
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buffer[1] = 0x4b;
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} else {
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fd_driver = open(first_level, O_RDONLY);
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if (fd_driver == -1)
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{
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fprintf(stderr,
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"ERROR: Cannot open first level \"%s\"\n",
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first_level);
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return -1;
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}
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read(fd_driver, buffer, 1024);
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close(fd_driver);
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}
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fwrite(buffer, 1024, 1, fd);
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free(buffer);
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fclose(fd);
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return 0;
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}
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static int get_second_position(char *image, char *name, int *second_offset, int *second_size)
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{
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device_io_t device;
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stream_FILE* file;
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stream_VOLUME *volume;
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struct stream_stat st;
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device_sector_size = 2048;
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device.data = (void*)device_open(image, O_RDONLY);
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device.read_sector = (stream_read_sector_t)device_read_sector;
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device.close = (stream_close_t)device_close;
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device.get_blocksize = (stream_get_blocksize_t)device_get_blocksize;
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volume = iso9660_mount(&device);
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if (volume == NULL)
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{
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fprintf(stderr, "ERROR: Cannot open \"%s\"\n", image);
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return 1;
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}
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file = iso9660_open(volume, name);
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if (file == NULL)
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{
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fprintf(stderr, "ERROR: Cannot locate \"%s\" in the image\n", name);
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return 2;
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}
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iso9660_fstat(file, &st);
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*second_offset = st.st_base * 4;
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*second_size = st.st_size;
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iso9660_close(file);
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iso9660_umount(volume);
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device_close(device.data);
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return 0;
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}
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static int set_second(char *image, int second_offset,
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char *kernel_image, char *cmdline, char *ramdisk)
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{
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int fd;
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int ret;
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fd = open(image, O_RDWR);
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lseek(fd, second_offset * 512, SEEK_SET);
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ret = emile_second_set_param(fd, kernel_image, cmdline, ramdisk);
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close(fd);
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return ret;
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}
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static int set_config(char *image, int second_offset, char *config)
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{
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int fd;
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int ret;
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char c[512];
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sprintf(c, "configuration %s\n", config);
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fd = open(image, O_RDWR);
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if (fd == -1)
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return -1;
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ret = lseek(fd, second_offset * 512, SEEK_SET);
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if (ret == -1) {
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close(fd);
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return -1;
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}
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emile_second_set_configuration(fd, (int8_t*)c);
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close(fd);
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return 0;
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}
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static int set_first(char *image, int drive_num, int second_offset, int second_size)
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{
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int fd;
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map_t* map;
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int start, count;
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int ret;
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int i;
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int boottype;
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char bootblock[BOOTBLOCK_SIZE];
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device_io_t device;
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device_sector_size = 2048;
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device.data = (void*)device_open(image, O_RDONLY);
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device.read_sector = (stream_read_sector_t)device_read_sector;
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device.close = (stream_close_t)device_close;
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device.get_blocksize = (stream_get_blocksize_t)device_get_blocksize;
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map = map_open(&device);
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for (i = 0; i < map_get_number(map); i++)
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{
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map_read(map, i);
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if ( strcmp(APPLE_HFS, map_get_partition_type(map)) == 0) {
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ret = map_get_partition_geometry(map, &start, &count);
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map_bootblock_read(map, bootblock);
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boottype = map_bootblock_get_type(bootblock);
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if (boottype == EMILE_BOOTBLOCK)
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{
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printf("Bootable HFS partition found at position %d (%d * %d)\n",
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i, start, count);
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break;
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}
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}
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}
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map_close(map);
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if (i == map_get_number(map))
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return -1;
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fd = open(image, O_RDWR);
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ret = lseek(fd, start * 512, SEEK_SET);
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ret = emile_first_set_param_scsi_extents(fd, 3, second_offset / 4, second_size, BLOCKSIZE);
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close(fd);
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return ret;
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}
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int main(int argc, char** argv)
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{
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int verbose = 0;
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int option_index = 0;
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char* first_level = NULL;
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char* second_level = NULL;
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char* kernel_image = NULL;
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char* ramdisk = NULL;
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char* image = NULL;
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char* appledriver = NULL;
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char* emiledriver = NULL;
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char *cmdline = NULL;
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char *conffile = NULL;
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int c;
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char temp[256];
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int i;
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char second_on_iso[256];
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int second_offset;
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int second_size;
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char *buffer;
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while(1)
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{
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c = getopt_long(argc, argv, "hvf:s:k:r:d:i:a:e:c:",
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long_options, &option_index);
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if (c == -1)
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break;
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switch(c)
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{
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case ARG_HELP:
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usage(argc, argv);
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return 0;
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case ARG_VERBOSE:
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verbose = 1;
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break;
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case ARG_FIRST:
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first_level = optarg;
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break;
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case ARG_SECOND:
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second_level = optarg;
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break;
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case ARG_KERNEL:
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kernel_image = optarg;
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break;
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case ARG_RAMDISK:
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ramdisk = optarg;
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break;
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case ARG_APPEND:
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cmdline = optarg;
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break;
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case ARG_APPLEDRIVER:
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appledriver = optarg;
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break;
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case ARG_EMILEDRIVER:
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emiledriver = optarg;
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break;
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case ARG_CONFIG:
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conffile = optarg;
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break;
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}
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}
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if (optind < argc)
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image = argv[optind++];
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if (image == NULL)
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{
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fprintf(stderr,"ERROR: you must provide a filename to write image\n");
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usage(argc, argv);
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return 1;
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}
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if (appledriver == NULL && emiledriver == NULL)
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emiledriver = DRIVER_PATH;
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if (conffile && (kernel_image || ramdisk || cmdline)) {
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fprintf(stderr, "ERROR: --config cannot be used with --kernel,"
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" --ramdisk or --append\n");
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usage(argc, argv);
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return 1;
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}
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if (emiledriver == NULL) {
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if (first_level == NULL)
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first_level = FIRST_PATH;
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if (second_level == NULL)
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second_level = SECOND_PATH;
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if (create_apple_driver(temp, appledriver, first_level))
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return 1;
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} else {
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char name[32];
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int fd_in, fd_out;
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char buf[512];
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int ret;
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if (first_level != NULL ||
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second_level != NULL ||
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appledriver != NULL) {
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fprintf(stderr,
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"ERROR: --emiledriver cannot be used with "
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"--appledriver, --first or -second\n");
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usage(argc, argv);
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return 1;
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}
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fd_in = open(emiledriver, O_RDONLY);
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if (fd_in == -1)
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{
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fprintf(stderr, "ERROR: cannot open %s\n", emiledriver);
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return 1;
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}
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sprintf(name, "/tmp/emile_driver-XXXXXX");
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mktemp(name);
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fd_out = open(name, O_RDWR | O_CREAT, S_IRWXU);
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if (fd_out == -1)
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{
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fprintf(stderr, "ERROR: cannot open %s (%s)\n", name, strerror(errno));
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return 1;
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}
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while ( (ret = read(fd_in, buf, 512)) > 0 )
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{
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ret = write(fd_out, buf, ret);
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if (ret == -1)
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break;
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}
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close(fd_in);
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close(fd_out);
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if (ret == -1)
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{
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fprintf(stderr, "ERROR: cannot copy %s to %s\n", emiledriver, name);
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return 1;
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}
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if (conffile)
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set_config(name, 0, conffile);
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else
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set_second(name, 0, kernel_image, cmdline, ramdisk);
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if (create_apple_driver(temp, name, first_level))
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return 1;
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unlink(name);
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}
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buffer = malloc(65536);
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if (second_level) {
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strcpy(second_on_iso, kernel_image);
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dirname(second_on_iso);
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strcat(second_on_iso, "/emile");
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if (verbose)
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sprintf(buffer, COMMAND " %s=%s", "",
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temp, image, second_on_iso, second_level);
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else
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sprintf(buffer, COMMAND " %s=%s", "-quiet",
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temp, image, second_on_iso, second_level);
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} else {
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if (verbose)
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sprintf(buffer, COMMAND, "", temp, image);
|
|
else
|
|
sprintf(buffer, COMMAND, "-quiet", temp, image);
|
|
}
|
|
|
|
for (i = optind; i < argc; i++)
|
|
{
|
|
strcat(buffer, " ");
|
|
strcat(buffer, argv[i]);
|
|
}
|
|
printf("%s\n",buffer);
|
|
system(buffer);
|
|
|
|
free(buffer);
|
|
|
|
unlink(temp);
|
|
|
|
if (second_level) {
|
|
if (get_second_position(image, second_on_iso,
|
|
&second_offset, &second_size))
|
|
{
|
|
return 2;
|
|
}
|
|
|
|
printf("Second is at %d * %d\n", second_offset, second_size);
|
|
|
|
set_first(image, 3, second_offset, second_size);
|
|
|
|
if (conffile)
|
|
set_config(emiledriver, second_offset, conffile);
|
|
else
|
|
set_second(image, second_offset,
|
|
kernel_image, cmdline, ramdisk);
|
|
}
|
|
|
|
return 0;
|
|
}
|