--- /dev/null
+/*
+ * 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., 51 Franklin Street - Fifth Floor, Boston,
+ * MA 02110-1301, 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)
+ */
+
+/*
+ * Modified by SONE Takeshi to work with FILO
+ */
+
+#ifndef _ISO9660_H_
+#define _ISO9660_H_
+
+#define ISO_SECTOR_BITS (11)
+#define ISO_SECTOR_SIZE (1<<ISO_SECTOR_BITS)
+
+#define ISO_REGULAR 1 /* regular file */
+#define ISO_DIRECTORY 2 /* directory */
+#define ISO_OTHER 0 /* other file (with Rock Ridge) */
+
+#define RR_FLAG_PX 0x01 /* have POSIX file attributes */
+#define RR_FLAG_NM 0x08 /* have alternate file name */
+
+/* POSIX file attributes for Rock Ridge extensions */
+#define POSIX_S_IFMT 0xF000
+#define POSIX_S_IFREG 0x8000
+#define POSIX_S_IFDIR 0x4000
+
+/* volume descriptor types */
+#define ISO_VD_PRIMARY 1
+#define ISO_VD_END 255
+
+#define ISO_STANDARD_ID "CD001"
+
+#ifndef ASM_FILE
+
+typedef union {
+ uint8_t l,b;
+} iso_8bit_t;
+
+typedef struct __iso_16bit {
+ uint16_t l, b;
+} iso_16bit_t;
+
+typedef struct __iso_32bit {
+ uint32_t l, b;
+} iso_32bit_t;
+
+typedef uint8_t iso_date_t[7];
+
+struct iso_directory_record {
+ iso_8bit_t length;
+ iso_8bit_t ext_attr_length;
+ iso_32bit_t extent;
+ iso_32bit_t size;
+ iso_date_t date;
+ iso_8bit_t flags;
+ iso_8bit_t file_unit_size;
+ iso_8bit_t interleave;
+ iso_16bit_t volume_seq_number;
+ iso_8bit_t name_len;
+ uint8_t name[1];
+} __attribute__ ((packed));
+
+struct iso_primary_descriptor {
+ iso_8bit_t type;
+ uint8_t id[5];
+ iso_8bit_t version;
+ uint8_t _unused1[1];
+ uint8_t system_id[32];
+ uint8_t volume_id[32];
+ uint8_t _unused2[8];
+ iso_32bit_t volume_space_size;
+ uint8_t _unused3[32];
+ iso_16bit_t volume_set_size;
+ iso_16bit_t volume_seq_number;
+ iso_16bit_t logical_block_size;
+ iso_32bit_t path_table_size;
+ uint8_t type_l_path_table[4];
+ uint8_t opt_type_l_path_table[4];
+ uint8_t type_m_path_table[4];
+ uint8_t opt_type_m_path_table[4];
+ struct iso_directory_record root_directory_record;
+ uint8_t volume_set_id[128];
+ uint8_t publisher_id[128];
+ uint8_t preparer_id[128];
+ uint8_t application_id[128];
+ uint8_t copyright_file_id[37];
+ uint8_t abstract_file_id[37];
+ uint8_t bibliographic_file_id[37];
+ uint8_t creation_date[17];
+ uint8_t modification_date[17];
+ uint8_t expiration_date[17];
+ uint8_t effective_date[17];
+ iso_8bit_t file_structure_version;
+ uint8_t _unused4[1];
+ uint8_t application_data[512];
+ uint8_t _unused5[653];
+} __attribute__ ((packed));
+
+struct rock_ridge {
+ uint16_t signature;
+ uint8_t len;
+ uint8_t version;
+ union {
+ struct CE {
+ iso_32bit_t extent;
+ iso_32bit_t offset;
+ iso_32bit_t size;
+ } ce;
+ struct NM {
+ iso_8bit_t flags;
+ uint8_t name[0];
+ } nm;
+ struct PX {
+ iso_32bit_t mode;
+ iso_32bit_t nlink;
+ iso_32bit_t uid;
+ iso_32bit_t gid;
+ } px;
+ struct RR {
+ iso_8bit_t flags;
+ } rr;
+ } u;
+} __attribute__ ((packed));
+
+typedef union RR_ptr {
+ struct rock_ridge *rr;
+ char *ptr;
+ int i;
+} RR_ptr_t;
+
+#define CHECK2(ptr, c1, c2) \
+ (*(unsigned char *)(ptr) == (c1) && \
+ *((unsigned char *)(ptr) + 1) == (c2))
+#define CHECK4(ptr, c1, c2, c3, c4) \
+ (*(unsigned char *)(ptr) == (c1) && \
+ *((unsigned char *)(ptr) + 1) == (c2) && \
+ *((unsigned char *)(ptr) + 2) == (c3) && \
+ *((unsigned char *)(ptr) + 3) == (c4))
+
+#endif /* !ASM_FILE */
+
+#endif /* _ISO9660_H_ */
Code Review / kvmfornfv.git / blobdiff