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-rw-r--r--src/stream/fs/iso9660.c338
1 files changed, 0 insertions, 338 deletions
diff --git a/src/stream/fs/iso9660.c b/src/stream/fs/iso9660.c
deleted file mode 100644
index 9d36a5cf54..0000000000
--- a/src/stream/fs/iso9660.c
+++ /dev/null
@@ -1,338 +0,0 @@
-/*
- * ISO 9660 filesystem backend for GRUB (GRand Unified Bootloader)
- * including Rock Ridge Extensions support
- *
- * Copyright (C) 1998, 1999 Kousuke Takai <tak@kmc.kyoto-u.ac.jp>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-/*
- * References:
- * linux/fs/isofs/rock.[ch]
- * mkisofs-1.11.1/diag/isoinfo.c
- * mkisofs-1.11.1/iso9660.h
- * (all are written by Eric Youngdale)
- *
- * Modifications by:
- * Leonid Lisovskiy <lly@pisem.net> 2003
- */
-
-/*
- * Modified to make it work with FILO
- * 2003-10 by SONE Takeshi
- */
-
-#include <console/console.h>
-#include <fs/fs.h>
-#include <fs/iso9660.h>
-#include <string.h>
-
-struct iso_superblock {
- unsigned long vol_sector;
-
- unsigned long file_start;
-};
-
-#define ISO_SUPER ((struct iso_superblock *)(FSYS_BUF))
-#define PRIMDESC ((struct iso_primary_descriptor *)(FSYS_BUF + 2048))
-#define DIRREC ((struct iso_directory_record *)(FSYS_BUF + 4096))
-#define RRCONT_BUF ((unsigned char *)(FSYS_BUF + 6144))
-#define NAME_BUF ((unsigned char *)(FSYS_BUF + 8192))
-
-static int
-iso9660_devread (int sector, int byte_offset, int byte_len, char *buf)
-{
- /* FILO uses 512-byte "soft" sector, and ISO-9660 uses 2048-byte
- * CD-ROM sector */
- return devread(sector<<2, byte_offset, byte_len, buf);
-}
-
-int
-iso9660_mount (void)
-{
- unsigned int sector;
-
- /*
- * Because there is no defined slice type ID for ISO-9660 filesystem,
- * this test will pass only either (1) if entire disk is used, or
- * (2) if current partition is BSD style sub-partition whose ID is
- * ISO-9660.
- */
- /*if ((current_partition != 0xFFFFFF)
- && !IS_PC_SLICE_TYPE_BSD_WITH_FS(current_slice, FS_ISO9660))
- return 0;*/
-
- /*
- * Currently, only FIRST session of MultiSession disks are supported !!!
- */
- for (sector = 16 ; sector < 32 ; sector++)
- {
- if (!iso9660_devread(sector, 0, sizeof(*PRIMDESC), (char *)PRIMDESC))
- break;
- /* check ISO_VD_PRIMARY and ISO_STANDARD_ID */
- if (isonum_711(PRIMDESC->type) == ISO_VD_PRIMARY &&
- !__builtin_memcmp(PRIMDESC->id, "CD001", 5))
- {
- ISO_SUPER->vol_sector = sector;
- ISO_SUPER->file_start = 0;
- fsmax = isonum_733(PRIMDESC->volume_space_size);
- return 1;
- }
- }
-
- return 0;
-}
-
-int
-iso9660_dir (char *dirname)
-{
- struct iso_directory_record *idr;
- RR_ptr_t rr_ptr;
- struct rock_ridge *ce_ptr;
- unsigned int pathlen;
- int size;
- unsigned int extent;
- unsigned int rr_len;
- unsigned char file_type;
- unsigned char rr_flag;
-
- idr = (struct iso_directory_record *)&PRIMDESC->root_directory_record;
- ISO_SUPER->file_start = 0;
-
- do
- {
- while (*dirname == '/') /* skip leading slashes */
- dirname++;
- /* pathlen = strcspn(dirname, "/\n\t "); */
- for (pathlen = 0 ;
- dirname[pathlen]
- && !isspace(dirname[pathlen]) && dirname[pathlen] != '/' ;
- pathlen++)
- ;
-
- size = isonum_733(idr->size);
- extent = isonum_733(idr->extent);
-
- while (size > 0)
- {
- if (!iso9660_devread(extent, 0, ISO_SECTOR_SIZE, (char *)DIRREC))
- {
- errnum = ERR_FSYS_CORRUPT;
- return 0;
- }
- extent++;
-
- idr = (struct iso_directory_record *)DIRREC;
- for (; isonum_711(idr->length) > 0;
- idr = (struct iso_directory_record *)((char *)idr + isonum_711(idr->length)) )
- {
- const char *name = idr->name;
- unsigned int name_len = isonum_711(idr->name_len);
-
- file_type = (isonum_711(idr->flags) & 2) ? ISO_DIRECTORY : ISO_REGULAR;
- if (name_len == 1)
- {
- if ((name[0] == 0) || /* self */
- (name[0] == 1)) /* parent */
- continue;
- }
- if (name_len > 2 &&
- name[name_len - 2] == ';' &&
- name[name_len - 1] == '1')
- {
- name_len -= 2; /* truncate trailing file version */
- if (name_len > 1 && name[name_len - 1] == '.')
- name_len--; /* truncate trailing dot */
- }
-
- /*
- * Parse Rock-Ridge extension
- */
- rr_len = (isonum_711(idr->length) - isonum_711(idr->name_len)
- - sizeof(struct iso_directory_record)
- + sizeof(idr->name));
- rr_ptr.ptr = ((unsigned char *)idr + isonum_711(idr->name_len)
- + sizeof(struct iso_directory_record)
- - sizeof(idr->name));
- if (rr_ptr.i & 1)
- rr_ptr.i++, rr_len--;
- ce_ptr = 0;
- rr_flag = RR_FLAG_NM | RR_FLAG_PX;
-
- while (rr_len >= 4)
- {
- if (rr_ptr.rr->version != 1)
- {
-#ifndef STAGE1_5
- if (debug)
- printk_debug(
- "Non-supported version (%d) RockRidge chunk "
- "`%c%c'\n", rr_ptr.rr->version,
- rr_ptr.rr->signature[0],
- rr_ptr.rr->signature[1]);
-#endif
- break;
- }
- else if (rr_ptr.rr->signature[0] == 'R'
- && rr_ptr.rr->signature[1] == 'R'
- && rr_ptr.rr->len >= 5)
- rr_flag &= isonum_711(rr_ptr.rr->u.RR.flags);
- else if (rr_ptr.rr->signature[0] == 'N'
- && rr_ptr.rr->signature[1] == 'M')
- {
- name = rr_ptr.rr->u.NM.name;
- name_len = rr_ptr.rr->len - 5;
- rr_flag &= ~RR_FLAG_NM;
- }
- else if (rr_ptr.rr->signature[0] == 'P'
- && rr_ptr.rr->signature[1] == 'X'
- && rr_ptr.rr->len >= 36)
- {
- unsigned int mode = isonum_733(rr_ptr.rr->u.PX.mode);
- file_type = ((mode & POSIX_S_IFMT)
- == POSIX_S_IFREG
- ? ISO_REGULAR
- : ((mode & POSIX_S_IFMT)
- == POSIX_S_IFDIR
- ? ISO_DIRECTORY : ISO_OTHER));
- rr_flag &= ~RR_FLAG_PX;
- }
- else if (rr_ptr.rr->signature[0] == 'C'
- && rr_ptr.rr->signature[1] == 'E'
- && rr_ptr.rr->len >= 28)
- ce_ptr = rr_ptr.rr;
- if (!rr_flag)
- /*
- * There is no more extension we expects...
- */
- break;
- rr_len -= rr_ptr.rr->len;
- rr_ptr.ptr += rr_ptr.rr->len;
- if (rr_len < 4 && ce_ptr != 0)
- {
- /* preserve name before loading new extent. */
- if( RRCONT_BUF <= (unsigned char *)name
- && (unsigned char *)name < RRCONT_BUF + ISO_SECTOR_SIZE )
- {
- memcpy(NAME_BUF, name, name_len);
- name = NAME_BUF;
- }
- rr_ptr.ptr = RRCONT_BUF + isonum_733(ce_ptr->u.CE.offset);
- rr_len = isonum_733(ce_ptr->u.CE.size);
- if (!iso9660_devread(isonum_733(ce_ptr->u.CE.extent), 0, ISO_SECTOR_SIZE, RRCONT_BUF))
- {
- errnum = 0; /* this is not fatal. */
- break;
- }
- ce_ptr = 0;
- }
- } /* rr_len >= 4 */
-
- filemax = MAXINT;
- if (name_len >= pathlen
- && !__builtin_memcmp(name, dirname, pathlen))
- {
- if (dirname[pathlen] == '/' || !print_possibilities)
- {
- /*
- * DIRNAME is directory component of pathname,
- * or we are to open a file.
- */
- if (pathlen == name_len)
- {
- if (dirname[pathlen] == '/')
- {
- if (file_type != ISO_DIRECTORY)
- {
- errnum = ERR_BAD_FILETYPE;
- return 0;
- }
- goto next_dir_level;
- }
- if (file_type != ISO_REGULAR)
- {
- errnum = ERR_BAD_FILETYPE;
- return 0;
- }
- ISO_SUPER->file_start = isonum_733(idr->extent);
- filepos = 0;
- filemax = isonum_733(idr->size);
- return 1;
- }
- }
- else /* Completion */
- {
-#ifndef STAGE1_5
- if (print_possibilities > 0)
- print_possibilities = -print_possibilities;
- memcpy(NAME_BUF, name, name_len);
- NAME_BUF[name_len] = '\0';
- print_a_completion (NAME_BUF);
-#endif
- }
- }
- } /* for */
-
- size -= ISO_SECTOR_SIZE;
- } /* size>0 */
-
- if (dirname[pathlen] == '/' || print_possibilities >= 0)
- {
- errnum = ERR_FILE_NOT_FOUND;
- return 0;
- }
-
-next_dir_level:
- dirname += pathlen;
-
- } while (*dirname == '/');
-
- return 1;
-}
-
-int
-iso9660_read (char *buf, int len)
-{
- int sector, blkoffset, size, ret;
-
- if (ISO_SUPER->file_start == 0)
- return 0;
-
- ret = 0;
- blkoffset = filepos & (ISO_SECTOR_SIZE - 1);
- sector = filepos >> ISO_SECTOR_BITS;
- while (len > 0)
- {
- size = ISO_SECTOR_SIZE - blkoffset;
- if (size > len)
- size = len;
-
- disk_read_func = disk_read_hook;
-
- if (!iso9660_devread(ISO_SUPER->file_start + sector, blkoffset, size, buf))
- return 0;
-
- disk_read_func = 0;
-
- len -= size;
- buf += size;
- ret += size;
- filepos += size;
- sector++;
- blkoffset = 0;
- }
-
- return ret;
-}
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