| /* |
| * |
| * fdisksgilabel.c |
| * |
| * Copyright (C) Andreas Neuper, Sep 1998. |
| * This file may be modified and redistributed under |
| * the terms of the GNU Public License. |
| * |
| * 1999-03-20 Arnaldo Carvalho de Melo <acme@conectiva.com.br> |
| * Internationalization |
| * |
| * 2003-03-20 Phillip Kesling <pkesling@sgi.com> |
| * Some fixes |
| */ |
| #include <stdio.h> /* stderr */ |
| #include <stdlib.h> /* exit */ |
| #include <string.h> /* strstr */ |
| #include <unistd.h> /* write */ |
| #include <sys/ioctl.h> /* ioctl */ |
| #include <sys/stat.h> /* stat */ |
| #include <assert.h> /* assert */ |
| |
| #include <endian.h> |
| #include "nls.h" |
| |
| #include "blkdev.h" |
| |
| #include "common.h" |
| #include "fdisk.h" |
| #include "fdisksgilabel.h" |
| |
| static int other_endian = 0; |
| static int debug = 0; |
| static short volumes=1; |
| |
| /* |
| * only dealing with free blocks here |
| */ |
| |
| typedef struct { unsigned int first; unsigned int last; } freeblocks; |
| static freeblocks freelist[17]; /* 16 partitions can produce 17 vacant slots */ |
| |
| static void |
| setfreelist(int i, unsigned int f, unsigned int l) { |
| freelist[i].first = f; |
| freelist[i].last = l; |
| } |
| |
| static void |
| add2freelist(unsigned int f, unsigned int l) { |
| int i = 0; |
| for ( ; i < 17 ; i++) |
| if (freelist[i].last == 0) |
| break; |
| setfreelist(i, f, l); |
| } |
| |
| static void |
| clearfreelist(void) { |
| int i; |
| |
| for (i = 0; i < 17 ; i++) |
| setfreelist(i, 0, 0); |
| } |
| |
| static unsigned int |
| isinfreelist(unsigned int b) { |
| int i; |
| |
| for (i = 0; i < 17 ; i++) |
| if (freelist[i].first <= b && freelist[i].last >= b) |
| return freelist[i].last; |
| return 0; |
| } |
| /* return last vacant block of this stride (never 0). */ |
| /* the '>=' is not quite correct, but simplifies the code */ |
| /* |
| * end of free blocks section |
| */ |
| struct systypes sgi_sys_types[] = { |
| {SGI_VOLHDR, N_("SGI volhdr")}, |
| {0x01, N_("SGI trkrepl")}, |
| {0x02, N_("SGI secrepl")}, |
| {SGI_SWAP, N_("SGI raw")}, |
| {0x04, N_("SGI bsd")}, |
| {0x05, N_("SGI sysv")}, |
| {ENTIRE_DISK, N_("SGI volume")}, |
| {SGI_EFS, N_("SGI efs")}, |
| {0x08, N_("SGI lvol")}, |
| {0x09, N_("SGI rlvol")}, |
| {SGI_XFS, N_("SGI xfs")}, |
| {SGI_XFSLOG, N_("SGI xfslog")}, |
| {SGI_XLV, N_("SGI xlv")}, |
| {SGI_XVM, N_("SGI xvm")}, |
| {LINUX_SWAP, N_("Linux swap")}, |
| {LINUX_NATIVE, N_("Linux native")}, |
| {LINUX_LVM, N_("Linux LVM")}, |
| {LINUX_RAID, N_("Linux RAID")}, |
| {0, NULL } |
| }; |
| |
| static int |
| sgi_get_nsect(void) { |
| return SSWAP16(sgilabel->devparam.nsect); |
| } |
| |
| static int |
| sgi_get_ntrks(void) { |
| return SSWAP16(sgilabel->devparam.ntrks); |
| } |
| |
| #if 0 |
| static int |
| sgi_get_head_vol0(void) { |
| return SSWAP16(sgilabel->devparam.head_vol0); |
| } |
| |
| static int |
| sgi_get_bytes(void) { |
| return SSWAP16(sgilabel->devparam.bytes); |
| } |
| |
| static int |
| sgi_get_pcylcount(void) { |
| return SSWAP16(sgilabel->devparam.pcylcount); |
| } |
| #endif |
| |
| void |
| sgi_nolabel() { |
| sgilabel->magic = 0; |
| sgi_label = 0; |
| partitions = 4; |
| } |
| |
| static unsigned int |
| two_s_complement_32bit_sum(unsigned int *base, int size /* in bytes */) { |
| int i = 0; |
| unsigned int sum = 0; |
| |
| size /= sizeof(unsigned int); |
| for (i = 0; i < size; i++) |
| sum -= SSWAP32(base[i]); |
| return sum; |
| } |
| |
| int |
| check_sgi_label() { |
| if (sizeof(sgilabel) > 512) { |
| fprintf(stderr, |
| _("According to MIPS Computer Systems, Inc the " |
| "Label must not contain more than 512 bytes\n")); |
| exit(1); |
| } |
| |
| if (sgilabel->magic != SGI_LABEL_MAGIC && |
| sgilabel->magic != SGI_LABEL_MAGIC_SWAPPED) { |
| sgi_label = 0; |
| other_endian = 0; |
| return 0; |
| } |
| |
| other_endian = (sgilabel->magic == SGI_LABEL_MAGIC_SWAPPED); |
| /* |
| * test for correct checksum |
| */ |
| if (two_s_complement_32bit_sum((unsigned int*)sgilabel, |
| sizeof(*sgilabel))) { |
| fprintf(stderr, |
| _("Detected sgi disklabel with wrong checksum.\n")); |
| } |
| update_units(); |
| sgi_label = 1; |
| partitions= 16; |
| volumes = 15; |
| return 1; |
| } |
| |
| void |
| sgi_list_table(int xtra) { |
| int i, w; |
| int kpi = 0; /* kernel partition ID */ |
| char *type; |
| |
| w = strlen(disk_device); |
| |
| if (xtra) { |
| printf(_("\nDisk %s (SGI disk label): %d heads, %llu sectors\n" |
| "%d cylinders, %d physical cylinders\n" |
| "%d extra sects/cyl, interleave %d:1\n" |
| "%s\n" |
| "Units = %s of %d * %d bytes\n\n"), |
| disk_device, heads, sectors, cylinders, |
| SSWAP16(sgiparam.pcylcount), |
| SSWAP16(sgiparam.sparecyl), |
| SSWAP16(sgiparam.ilfact), |
| (char *)sgilabel, |
| str_units(PLURAL), units_per_sector, |
| sector_size); |
| } else { |
| printf(_("\nDisk %s (SGI disk label): " |
| "%d heads, %llu sectors, %d cylinders\n" |
| "Units = %s of %d * %d bytes\n\n"), |
| disk_device, heads, sectors, cylinders, |
| str_units(PLURAL), units_per_sector, |
| sector_size); |
| } |
| printf(_("----- partitions -----\n" |
| "Pt# %*s Info Start End Sectors Id System\n"), |
| w + 1, _("Device")); |
| for (i = 0 ; i < partitions; i++) { |
| if (sgi_get_num_sectors(i) || debug) { |
| uint32_t start = sgi_get_start_sector(i); |
| uint32_t len = sgi_get_num_sectors(i); |
| kpi++; /* only count nonempty partitions */ |
| printf( |
| "%2d: %s %4s %9ld %9ld %9ld %2x %s\n", |
| /* fdisk part number */ i+1, |
| /* device */ partname(disk_device, kpi, w+2), |
| /* flags */ (sgi_get_swappartition() == i) ? "swap" : |
| /* flags */ (sgi_get_bootpartition() == i) ? "boot" : " ", |
| /* start */ (long) scround(start), |
| /* end */ (long) scround(start+len)-1, |
| /* no odd flag on end */ (long) len, |
| /* type id */ sgi_get_sysid(i), |
| /* type name */ (type = partition_type(sgi_get_sysid(i))) |
| ? type : _("Unknown")); |
| } |
| } |
| printf(_("----- Bootinfo -----\nBootfile: %s\n" |
| "----- Directory Entries -----\n"), |
| sgilabel->boot_file); |
| for (i = 0 ; i < volumes; i++) { |
| if (sgilabel->directory[i].vol_file_size) { |
| uint32_t start = SSWAP32(sgilabel->directory[i].vol_file_start); |
| uint32_t len = SSWAP32(sgilabel->directory[i].vol_file_size); |
| unsigned char *name = sgilabel->directory[i].vol_file_name; |
| printf(_("%2d: %-10s sector%5u size%8u\n"), |
| i, name, (unsigned int) start, |
| (unsigned int) len); |
| } |
| } |
| } |
| |
| unsigned int |
| sgi_get_start_sector(int i) { |
| return SSWAP32(sgilabel->partitions[i].start_sector); |
| } |
| |
| unsigned int |
| sgi_get_num_sectors(int i) { |
| return SSWAP32(sgilabel->partitions[i].num_sectors); |
| } |
| |
| int |
| sgi_get_sysid(int i) |
| { |
| return SSWAP32(sgilabel->partitions[i].id); |
| } |
| |
| int |
| sgi_get_bootpartition(void) |
| { |
| return SSWAP16(sgilabel->boot_part); |
| } |
| |
| int |
| sgi_get_swappartition(void) |
| { |
| return SSWAP16(sgilabel->swap_part); |
| } |
| |
| void |
| sgi_set_bootpartition(int i) |
| { |
| sgilabel->boot_part = SSWAP16(((short)i)); |
| } |
| |
| static unsigned int |
| sgi_get_lastblock(void) { |
| return heads * sectors * cylinders; |
| } |
| |
| void |
| sgi_set_swappartition(int i) { |
| sgilabel->swap_part = SSWAP16(((short)i)); |
| } |
| |
| static int |
| sgi_check_bootfile(const char* aFile) { |
| if (strlen(aFile) < 3) /* "/a\n" is minimum */ { |
| printf(_("\nInvalid Bootfile!\n" |
| "\tThe bootfile must be an absolute non-zero pathname,\n" |
| "\te.g. \"/unix\" or \"/unix.save\".\n")); |
| return 0; |
| } else { |
| if (strlen(aFile) > 16) { |
| printf(_("\n\tName of Bootfile too long: " |
| "16 bytes maximum.\n")); |
| return 0; |
| } else { |
| if (aFile[0] != '/') { |
| printf(_("\n\tBootfile must have a " |
| "fully qualified pathname.\n")); |
| return 0; |
| } |
| } |
| } |
| if (strncmp(aFile, (char *) sgilabel->boot_file, 16)) { |
| printf(_("\n\tBe aware, that the bootfile is not checked for existence.\n\t" |
| "SGI's default is \"/unix\" and for backup \"/unix.save\".\n")); |
| /* filename is correct and did change */ |
| return 1; |
| } |
| return 0; /* filename did not change */ |
| } |
| |
| const char * |
| sgi_get_bootfile(void) { |
| return (char *) sgilabel->boot_file; |
| } |
| |
| void |
| sgi_set_bootfile(const char* aFile) { |
| int i = 0; |
| |
| if (sgi_check_bootfile(aFile)) { |
| while (i < 16) { |
| if ((aFile[i] != '\n') /* in principle caught again by next line */ |
| && (strlen(aFile) > i)) |
| sgilabel->boot_file[i] = aFile[i]; |
| else |
| sgilabel->boot_file[i] = 0; |
| i++; |
| } |
| printf(_("\n\tBootfile is changed to \"%s\".\n"), |
| sgilabel->boot_file); |
| } |
| } |
| |
| void |
| create_sgiinfo(void) { |
| /* I keep SGI's habit to write the sgilabel to the second block */ |
| sgilabel->directory[0].vol_file_start = SSWAP32(2); |
| sgilabel->directory[0].vol_file_size = SSWAP32(sizeof(sgiinfo)); |
| strncpy((char *) sgilabel->directory[0].vol_file_name, "sgilabel", 8); |
| } |
| |
| sgiinfo *fill_sgiinfo(void); |
| |
| void |
| sgi_write_table(void) { |
| sgilabel->csum = 0; |
| sgilabel->csum = SSWAP32(two_s_complement_32bit_sum( |
| (unsigned int*)sgilabel, |
| sizeof(*sgilabel))); |
| assert(two_s_complement_32bit_sum( |
| (unsigned int*)sgilabel, sizeof(*sgilabel)) == 0); |
| if (lseek(fd, 0, SEEK_SET) < 0) |
| fatal(unable_to_seek); |
| if (write(fd, sgilabel, SECTOR_SIZE) != SECTOR_SIZE) |
| fatal(unable_to_write); |
| if (! strncmp((char *) sgilabel->directory[0].vol_file_name, "sgilabel", 8)) { |
| /* |
| * keep this habit of first writing the "sgilabel". |
| * I never tested whether it works without (AN 981002). |
| */ |
| sgiinfo *info = fill_sgiinfo(); |
| int infostartblock = SSWAP32(sgilabel->directory[0].vol_file_start); |
| if (lseek(fd, (off_t) infostartblock* |
| SECTOR_SIZE, SEEK_SET) < 0) |
| fatal(unable_to_seek); |
| if (write(fd, info, SECTOR_SIZE) != SECTOR_SIZE) |
| fatal(unable_to_write); |
| free(info); |
| } |
| } |
| |
| static int |
| compare_start(int *x, int *y) { |
| /* |
| * sort according to start sectors |
| * and prefers largest partition: |
| * entry zero is entire disk entry |
| */ |
| unsigned int i = *x; |
| unsigned int j = *y; |
| unsigned int a = sgi_get_start_sector(i); |
| unsigned int b = sgi_get_start_sector(j); |
| unsigned int c = sgi_get_num_sectors(i); |
| unsigned int d = sgi_get_num_sectors(j); |
| |
| if (a == b) |
| return (d > c) ? 1 : (d == c) ? 0 : -1; |
| return (a > b) ? 1 : -1; |
| } |
| |
| static int |
| sgi_gaps(void) { |
| /* |
| * returned value is: |
| * = 0 : disk is properly filled to the rim |
| * < 0 : there is an overlap |
| * > 0 : there is still some vacant space |
| */ |
| return verify_sgi(0); |
| } |
| |
| int |
| verify_sgi(int verbose) |
| { |
| int Index[16]; /* list of valid partitions */ |
| int sortcount = 0; /* number of used partitions, i.e. non-zero lengths */ |
| int entire = 0, i = 0; |
| unsigned int start = 0; |
| long long gap = 0; /* count unused blocks */ |
| unsigned int lastblock = sgi_get_lastblock(); |
| |
| clearfreelist(); |
| for (i=0; i<16; i++) { |
| if (sgi_get_num_sectors(i) != 0) { |
| Index[sortcount++]=i; |
| if (sgi_get_sysid(i) == ENTIRE_DISK) { |
| if (entire++ == 1) { |
| if (verbose) |
| printf(_("More than one entire disk entry present.\n")); |
| } |
| } |
| } |
| } |
| if (sortcount == 0) { |
| if (verbose) |
| printf(_("No partitions defined\n")); |
| return (lastblock > 0) ? 1 : (lastblock == 0) ? 0 : -1; |
| } |
| qsort(Index, sortcount, sizeof(Index[0]), (void*)compare_start); |
| if (sgi_get_sysid(Index[0]) == ENTIRE_DISK) { |
| if ((Index[0] != 10) && verbose) |
| printf(_("IRIX likes when Partition 11 covers the entire disk.\n")); |
| if ((sgi_get_start_sector(Index[0]) != 0) && verbose) |
| printf(_("The entire disk partition should start " |
| "at block 0,\n" |
| "not at diskblock %d.\n"), |
| sgi_get_start_sector(Index[0])); |
| if (debug) /* I do not understand how some disks fulfil it */ |
| if ((sgi_get_num_sectors(Index[0]) != lastblock) && verbose) |
| printf(_("The entire disk partition is only %d diskblock large,\n" |
| "but the disk is %d diskblocks long.\n"), |
| sgi_get_num_sectors(Index[0]), lastblock); |
| lastblock = sgi_get_num_sectors(Index[0]); |
| } else { |
| if (verbose) |
| printf(_("One Partition (#11) should cover the entire disk.\n")); |
| if (debug>2) |
| printf("sysid=%d\tpartition=%d\n", |
| sgi_get_sysid(Index[0]), Index[0]+1); |
| } |
| for (i=1, start=0; i<sortcount; i++) { |
| int cylsize = sgi_get_nsect() * sgi_get_ntrks(); |
| if ((sgi_get_start_sector(Index[i]) % cylsize) != 0) { |
| if (debug) /* I do not understand how some disks fulfil it */ |
| if (verbose) |
| printf(_("Partition %d does not start on cylinder boundary.\n"), |
| Index[i]+1); |
| } |
| if (sgi_get_num_sectors(Index[i]) % cylsize != 0) { |
| if (debug) /* I do not understand how some disks fulfil it */ |
| if (verbose) |
| printf(_("Partition %d does not end on cylinder boundary.\n"), |
| Index[i]+1); |
| } |
| /* We cannot handle several "entire disk" entries. */ |
| if (sgi_get_sysid(Index[i]) == ENTIRE_DISK) continue; |
| if (start > sgi_get_start_sector(Index[i])) { |
| if (verbose) |
| printf(_("The Partition %d and %d overlap by %d sectors.\n"), |
| Index[i-1]+1, Index[i]+1, |
| start - sgi_get_start_sector(Index[i])); |
| if (gap > 0) gap = -gap; |
| if (gap == 0) gap = -1; |
| } |
| if (start < sgi_get_start_sector(Index[i])) { |
| if (verbose) |
| printf(_("Unused gap of %8u sectors - sectors %8u-%u\n"), |
| sgi_get_start_sector(Index[i]) - start, |
| start, sgi_get_start_sector(Index[i])-1); |
| gap += sgi_get_start_sector(Index[i]) - start; |
| add2freelist(start, sgi_get_start_sector(Index[i])); |
| } |
| start = sgi_get_start_sector(Index[i]) |
| + sgi_get_num_sectors(Index[i]); |
| if (debug > 1) { |
| if (verbose) |
| printf("%2d:%12d\t%12d\t%12d\n", Index[i], |
| sgi_get_start_sector(Index[i]), |
| sgi_get_num_sectors(Index[i]), |
| sgi_get_sysid(Index[i])); |
| } |
| } |
| if (start < lastblock) { |
| if (verbose) |
| printf(_("Unused gap of %8u sectors - sectors %8u-%u\n"), |
| lastblock - start, start, lastblock-1); |
| gap += lastblock - start; |
| add2freelist(start, lastblock); |
| } |
| /* |
| * Done with arithmetics |
| * Go for details now |
| */ |
| if (verbose) { |
| if (!sgi_get_num_sectors(sgi_get_bootpartition())) { |
| printf(_("\nThe boot partition does not exist.\n")); |
| } |
| if (!sgi_get_num_sectors(sgi_get_swappartition())) { |
| printf(_("\nThe swap partition does not exist.\n")); |
| } else { |
| if ((sgi_get_sysid(sgi_get_swappartition()) != SGI_SWAP) |
| && (sgi_get_sysid(sgi_get_swappartition()) != LINUX_SWAP)) |
| printf(_("\nThe swap partition has no swap type.\n")); |
| } |
| if (sgi_check_bootfile("/unix")) |
| printf(_("\tYou have chosen an unusual boot file name.\n")); |
| } |
| return (gap > 0) ? 1 : (gap == 0) ? 0 : -1; |
| } |
| |
| int |
| sgi_change_sysid(int i, int sys) |
| { |
| if (sgi_get_num_sectors(i) == 0) /* caught already before, ... */ { |
| printf(_("Sorry You may change the Tag of non-empty partitions.\n")); |
| return 0; |
| } |
| if (((sys != ENTIRE_DISK) && (sys != SGI_VOLHDR)) |
| && (sgi_get_start_sector(i)<1)) { |
| read_chars( |
| _("It is highly recommended that the partition at offset 0\n" |
| "is of type \"SGI volhdr\", the IRIX system will rely on it to\n" |
| "retrieve from its directory standalone tools like sash and fx.\n" |
| "Only the \"SGI volume\" entire disk section may violate this.\n" |
| "Type YES if you are sure about tagging this partition differently.\n")); |
| if (strcmp (line_ptr, _("YES\n"))) |
| return 0; |
| } |
| sgilabel->partitions[i].id = SSWAP32(sys); |
| return 1; |
| } |
| |
| /* returns partition index of first entry marked as entire disk */ |
| static int |
| sgi_entire(void) { |
| int i; |
| |
| for (i=0; i<16; i++) |
| if (sgi_get_sysid(i) == SGI_VOLUME) |
| return i; |
| return -1; |
| } |
| |
| static void |
| sgi_set_partition(int i, unsigned int start, unsigned int length, int sys) { |
| sgilabel->partitions[i].id = SSWAP32(sys); |
| sgilabel->partitions[i].num_sectors = SSWAP32(length); |
| sgilabel->partitions[i].start_sector = SSWAP32(start); |
| set_changed(i); |
| if (sgi_gaps() < 0) /* rebuild freelist */ |
| printf(_("Do You know, You got a partition overlap on the disk?\n")); |
| } |
| |
| static void |
| sgi_set_entire(void) { |
| int n; |
| |
| for (n=10; n<partitions; n++) { |
| if (!sgi_get_num_sectors(n)) { |
| sgi_set_partition(n, 0, sgi_get_lastblock(), SGI_VOLUME); |
| break; |
| } |
| } |
| } |
| |
| static |
| void |
| sgi_set_volhdr(void) |
| { |
| int n; |
| |
| for (n=8; n<partitions; n++) { |
| if (!sgi_get_num_sectors(n)) { |
| /* |
| * Choose same default volume header size |
| * as IRIX fx uses. |
| */ |
| if (4096 < sgi_get_lastblock()) |
| sgi_set_partition(n, 0, 4096, SGI_VOLHDR); |
| break; |
| } |
| } |
| } |
| |
| void |
| sgi_delete_partition(int i) |
| { |
| sgi_set_partition(i, 0, 0, 0); |
| } |
| |
| void |
| sgi_add_partition(int n, int sys) |
| { |
| char mesg[256]; |
| unsigned int first=0, last=0; |
| |
| if (n == 10) { |
| sys = SGI_VOLUME; |
| } else if (n == 8) { |
| sys = 0; |
| } |
| if (sgi_get_num_sectors(n)) { |
| printf(_("Partition %d is already defined. Delete " |
| "it before re-adding it.\n"), n + 1); |
| return; |
| } |
| if ((sgi_entire() == -1) |
| && (sys != SGI_VOLUME)) { |
| printf(_("Attempting to generate entire disk entry automatically.\n")); |
| sgi_set_entire(); |
| sgi_set_volhdr(); |
| } |
| if ((sgi_gaps() == 0) && (sys != SGI_VOLUME)) { |
| printf(_("The entire disk is already covered with partitions.\n")); |
| return; |
| } |
| if (sgi_gaps() < 0) { |
| printf(_("You got a partition overlap on the disk. Fix it first!\n")); |
| return; |
| } |
| snprintf(mesg, sizeof(mesg), _("First %s"), str_units(SINGULAR)); |
| for (;;) { |
| if (sys == SGI_VOLUME) { |
| last = sgi_get_lastblock(); |
| first = read_int(0, 0, last-1, 0, mesg); |
| if (first != 0) { |
| printf(_("It is highly recommended that eleventh partition\n" |
| "covers the entire disk and is of type `SGI volume'\n")); |
| } |
| } else { |
| first = freelist[0].first; |
| last = freelist[0].last; |
| first = read_int(scround(first), scround(first), scround(last)-1, |
| 0, mesg); |
| } |
| if (display_in_cyl_units) |
| first *= units_per_sector; |
| else |
| first = first; /* align to cylinder if you know how ... */ |
| if (!last) |
| last = isinfreelist(first); |
| if (last == 0) { |
| printf(_("You will get a partition overlap on the disk. " |
| "Fix it first!\n")); |
| } else |
| break; |
| } |
| snprintf(mesg, sizeof(mesg), _(" Last %s"), str_units(SINGULAR)); |
| last = read_int(scround(first), scround(last)-1, scround(last)-1, |
| scround(first), mesg)+1; |
| if (display_in_cyl_units) |
| last *= units_per_sector; |
| else |
| last = last; /* align to cylinder if You know how ... */ |
| if ((sys == SGI_VOLUME) && (first != 0 || last != sgi_get_lastblock())) |
| printf(_("It is highly recommended that eleventh partition\n" |
| "covers the entire disk and is of type `SGI volume'\n")); |
| sgi_set_partition(n, first, last-first, sys); |
| } |
| |
| void |
| create_sgilabel(void) |
| { |
| struct hd_geometry geometry; |
| struct { |
| unsigned int start; |
| unsigned int nsect; |
| int sysid; |
| } old[4]; |
| int i=0; |
| unsigned long long llsectors; |
| int res; /* the result from the ioctl */ |
| int sec_fac; /* the sector factor */ |
| |
| sec_fac = sector_size / 512; /* determine the sector factor */ |
| |
| fprintf(stderr, |
| _("Building a new SGI disklabel. Changes will remain in memory only,\n" |
| "until you decide to write them. After that, of course, the previous\n" |
| "content will be unrecoverably lost.\n\n")); |
| |
| other_endian = (BYTE_ORDER == LITTLE_ENDIAN); |
| |
| res = blkdev_get_sectors(fd, &llsectors); |
| |
| #ifdef HDIO_GETGEO |
| if (!ioctl(fd, HDIO_GETGEO, &geometry)) { |
| heads = geometry.heads; |
| sectors = geometry.sectors; |
| if (res == 0) { |
| /* the get device size ioctl was successful */ |
| unsigned long long llcyls; |
| llcyls = llsectors / (heads * sectors * sec_fac); |
| cylinders = llcyls; |
| if (cylinders != llcyls) /* truncated? */ |
| cylinders = ~0; |
| } else { |
| /* otherwise print error and use truncated version */ |
| cylinders = geometry.cylinders; |
| fprintf(stderr, |
| _("Warning: BLKGETSIZE ioctl failed on %s. " |
| "Using geometry cylinder value of %d.\n" |
| "This value may be truncated for devices" |
| " > 33.8 GB.\n"), disk_device, cylinders); |
| } |
| } |
| #endif |
| for (i = 0; i < 4; i++) { |
| old[i].sysid = 0; |
| if (valid_part_table_flag(MBRbuffer)) { |
| if (get_part_table(i)->sys_ind) { |
| old[i].sysid = get_part_table(i)->sys_ind; |
| old[i].start = get_start_sect(get_part_table(i)); |
| old[i].nsect = get_nr_sects(get_part_table(i)); |
| printf(_("Trying to keep parameters of partition %d.\n"), i); |
| if (debug) |
| printf(_("ID=%02x\tSTART=%d\tLENGTH=%d\n"), |
| old[i].sysid, old[i].start, old[i].nsect); |
| } |
| } |
| } |
| |
| zeroize_mbr_buffer(); |
| sgilabel->magic = SSWAP32(SGI_LABEL_MAGIC); |
| sgilabel->boot_part = SSWAP16(0); |
| sgilabel->swap_part = SSWAP16(1); |
| |
| /* sizeof(sgilabel->boot_file) = 16 > 6 */ |
| memset(sgilabel->boot_file, 0, 16); |
| strcpy((char *) sgilabel->boot_file, "/unix"); |
| |
| sgilabel->devparam.skew = (0); |
| sgilabel->devparam.gap1 = (0); |
| sgilabel->devparam.gap2 = (0); |
| sgilabel->devparam.sparecyl = (0); |
| sgilabel->devparam.pcylcount = SSWAP16(geometry.cylinders); |
| sgilabel->devparam.head_vol0 = SSWAP16(0); |
| sgilabel->devparam.ntrks = SSWAP16(geometry.heads); |
| /* tracks/cylinder (heads) */ |
| sgilabel->devparam.cmd_tag_queue_depth = (0); |
| sgilabel->devparam.unused0 = (0); |
| sgilabel->devparam.unused1 = SSWAP16(0); |
| sgilabel->devparam.nsect = SSWAP16(geometry.sectors); |
| /* sectors/track */ |
| sgilabel->devparam.bytes = SSWAP16(sector_size); |
| sgilabel->devparam.ilfact = SSWAP16(1); |
| sgilabel->devparam.flags = SSWAP32(TRACK_FWD|\ |
| IGNORE_ERRORS|RESEEK); |
| sgilabel->devparam.datarate = SSWAP32(0); |
| sgilabel->devparam.retries_on_error = SSWAP32(1); |
| sgilabel->devparam.ms_per_word = SSWAP32(0); |
| sgilabel->devparam.xylogics_gap1 = SSWAP16(0); |
| sgilabel->devparam.xylogics_syncdelay = SSWAP16(0); |
| sgilabel->devparam.xylogics_readdelay = SSWAP16(0); |
| sgilabel->devparam.xylogics_gap2 = SSWAP16(0); |
| sgilabel->devparam.xylogics_readgate = SSWAP16(0); |
| sgilabel->devparam.xylogics_writecont = SSWAP16(0); |
| memset(&(sgilabel->directory), 0, sizeof(struct volume_directory)*15); |
| memset(&(sgilabel->partitions), 0, sizeof(struct sgi_partition)*16); |
| sgi_label = 1; |
| partitions = 16; |
| volumes = 15; |
| sgi_set_entire(); |
| sgi_set_volhdr(); |
| for (i = 0; i < 4; i++) { |
| if (old[i].sysid) { |
| sgi_set_partition(i, old[i].start, old[i].nsect, old[i].sysid); |
| } |
| } |
| } |
| |
| void |
| sgi_set_ilfact(void) |
| { |
| /* do nothing in the beginning */ |
| } |
| |
| void |
| sgi_set_rspeed(void) |
| { |
| /* do nothing in the beginning */ |
| } |
| |
| void |
| sgi_set_pcylcount(void) |
| { |
| /* do nothing in the beginning */ |
| } |
| |
| void |
| sgi_set_xcyl(void) |
| { |
| /* do nothing in the beginning */ |
| } |
| |
| void |
| sgi_set_ncyl(void) |
| { |
| /* do nothing in the beginning */ |
| } |
| |
| /* _____________________________________________________________ |
| */ |
| |
| sgiinfo * |
| fill_sgiinfo(void) |
| { |
| sgiinfo*info=calloc(1, sizeof(sgiinfo)); |
| info->magic=SSWAP32(SGI_INFO_MAGIC); |
| info->b1=SSWAP32(-1); |
| info->b2=SSWAP16(-1); |
| info->b3=SSWAP16(1); |
| /* You may want to replace this string !!!!!!! */ |
| strcpy((char *) info->scsi_string, "IBM OEM 0662S12 3 30"); |
| strcpy((char *) info->serial, "0000"); |
| info->check1816 = SSWAP16(18*256 +16); |
| strcpy((char *) info->installer, "Sfx version 5.3, Oct 18, 1994"); |
| return info; |
| } |