Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 312 insertions, 0 deletions

diff --git a/include/linux/iso_fs.h b/include/linux/iso_fs.h
new file mode 100644
index 0000000..099039d
--- /dev/null
+++ b/include/linux/iso_fs.h
@@ -0,0 +1,312 @@
+
+#ifndef _ISOFS_FS_H
+#define _ISOFS_FS_H
+
+#include <linux/types.h>
+/*
+ * The isofs filesystem constants/structures
+ */
+
+/* This part borrowed from the bsd386 isofs */
+#define ISODCL(from, to) (to - from + 1)
+
+struct iso_volume_descriptor {
+	char type[ISODCL(1,1)]; /* 711 */
+	char id[ISODCL(2,6)];
+	char version[ISODCL(7,7)];
+	char data[ISODCL(8,2048)];
+};
+
+/* volume descriptor types */
+#define ISO_VD_PRIMARY 1
+#define ISO_VD_SUPPLEMENTARY 2
+#define ISO_VD_END 255
+
+#define ISO_STANDARD_ID "CD001"
+
+struct iso_primary_descriptor {
+	char type			[ISODCL (  1,   1)]; /* 711 */
+	char id				[ISODCL (  2,   6)];
+	char version			[ISODCL (  7,   7)]; /* 711 */
+	char unused1			[ISODCL (  8,   8)];
+	char system_id			[ISODCL (  9,  40)]; /* achars */
+	char volume_id			[ISODCL ( 41,  72)]; /* dchars */
+	char unused2			[ISODCL ( 73,  80)];
+	char volume_space_size		[ISODCL ( 81,  88)]; /* 733 */
+	char unused3			[ISODCL ( 89, 120)];
+	char volume_set_size		[ISODCL (121, 124)]; /* 723 */
+	char volume_sequence_number	[ISODCL (125, 128)]; /* 723 */
+	char logical_block_size		[ISODCL (129, 132)]; /* 723 */
+	char path_table_size		[ISODCL (133, 140)]; /* 733 */
+	char type_l_path_table		[ISODCL (141, 144)]; /* 731 */
+	char opt_type_l_path_table	[ISODCL (145, 148)]; /* 731 */
+	char type_m_path_table		[ISODCL (149, 152)]; /* 732 */
+	char opt_type_m_path_table	[ISODCL (153, 156)]; /* 732 */
+	char root_directory_record	[ISODCL (157, 190)]; /* 9.1 */
+	char volume_set_id		[ISODCL (191, 318)]; /* dchars */
+	char publisher_id		[ISODCL (319, 446)]; /* achars */
+	char preparer_id		[ISODCL (447, 574)]; /* achars */
+	char application_id		[ISODCL (575, 702)]; /* achars */
+	char copyright_file_id		[ISODCL (703, 739)]; /* 7.5 dchars */
+	char abstract_file_id		[ISODCL (740, 776)]; /* 7.5 dchars */
+	char bibliographic_file_id	[ISODCL (777, 813)]; /* 7.5 dchars */
+	char creation_date		[ISODCL (814, 830)]; /* 8.4.26.1 */
+	char modification_date		[ISODCL (831, 847)]; /* 8.4.26.1 */
+	char expiration_date		[ISODCL (848, 864)]; /* 8.4.26.1 */
+	char effective_date		[ISODCL (865, 881)]; /* 8.4.26.1 */
+	char file_structure_version	[ISODCL (882, 882)]; /* 711 */
+	char unused4			[ISODCL (883, 883)];
+	char application_data		[ISODCL (884, 1395)];
+	char unused5			[ISODCL (1396, 2048)];
+};
+
+/* Almost the same as the primary descriptor but two fields are specified */
+struct iso_supplementary_descriptor {
+	char type			[ISODCL (  1,   1)]; /* 711 */
+	char id				[ISODCL (  2,   6)];
+	char version			[ISODCL (  7,   7)]; /* 711 */
+	char flags			[ISODCL (  8,   8)]; /* 853 */
+	char system_id			[ISODCL (  9,  40)]; /* achars */
+	char volume_id			[ISODCL ( 41,  72)]; /* dchars */
+	char unused2			[ISODCL ( 73,  80)];
+	char volume_space_size		[ISODCL ( 81,  88)]; /* 733 */
+	char escape			[ISODCL ( 89, 120)]; /* 856 */
+	char volume_set_size		[ISODCL (121, 124)]; /* 723 */
+	char volume_sequence_number	[ISODCL (125, 128)]; /* 723 */
+	char logical_block_size		[ISODCL (129, 132)]; /* 723 */
+	char path_table_size		[ISODCL (133, 140)]; /* 733 */
+	char type_l_path_table		[ISODCL (141, 144)]; /* 731 */
+	char opt_type_l_path_table	[ISODCL (145, 148)]; /* 731 */
+	char type_m_path_table		[ISODCL (149, 152)]; /* 732 */
+	char opt_type_m_path_table	[ISODCL (153, 156)]; /* 732 */
+	char root_directory_record	[ISODCL (157, 190)]; /* 9.1 */
+	char volume_set_id		[ISODCL (191, 318)]; /* dchars */
+	char publisher_id		[ISODCL (319, 446)]; /* achars */
+	char preparer_id		[ISODCL (447, 574)]; /* achars */
+	char application_id		[ISODCL (575, 702)]; /* achars */
+	char copyright_file_id		[ISODCL (703, 739)]; /* 7.5 dchars */
+	char abstract_file_id		[ISODCL (740, 776)]; /* 7.5 dchars */
+	char bibliographic_file_id	[ISODCL (777, 813)]; /* 7.5 dchars */
+	char creation_date		[ISODCL (814, 830)]; /* 8.4.26.1 */
+	char modification_date		[ISODCL (831, 847)]; /* 8.4.26.1 */
+	char expiration_date		[ISODCL (848, 864)]; /* 8.4.26.1 */
+	char effective_date		[ISODCL (865, 881)]; /* 8.4.26.1 */
+	char file_structure_version	[ISODCL (882, 882)]; /* 711 */
+	char unused4			[ISODCL (883, 883)];
+	char application_data		[ISODCL (884, 1395)];
+	char unused5			[ISODCL (1396, 2048)];
+};
+
+
+#define HS_STANDARD_ID "CDROM"
+
+struct  hs_volume_descriptor {
+	char foo			[ISODCL (  1,   8)]; /* 733 */
+	char type			[ISODCL (  9,   9)]; /* 711 */
+	char id				[ISODCL ( 10,  14)];
+	char version			[ISODCL ( 15,  15)]; /* 711 */
+	char data[ISODCL(16,2048)];
+};
+
+
+struct hs_primary_descriptor {
+	char foo			[ISODCL (  1,   8)]; /* 733 */
+	char type			[ISODCL (  9,   9)]; /* 711 */
+	char id				[ISODCL ( 10,  14)];
+	char version			[ISODCL ( 15,  15)]; /* 711 */
+	char unused1			[ISODCL ( 16,  16)]; /* 711 */
+	char system_id			[ISODCL ( 17,  48)]; /* achars */
+	char volume_id			[ISODCL ( 49,  80)]; /* dchars */
+	char unused2			[ISODCL ( 81,  88)]; /* 733 */
+	char volume_space_size		[ISODCL ( 89,  96)]; /* 733 */
+	char unused3			[ISODCL ( 97, 128)]; /* 733 */
+	char volume_set_size		[ISODCL (129, 132)]; /* 723 */
+	char volume_sequence_number	[ISODCL (133, 136)]; /* 723 */
+	char logical_block_size		[ISODCL (137, 140)]; /* 723 */
+	char path_table_size		[ISODCL (141, 148)]; /* 733 */
+	char type_l_path_table		[ISODCL (149, 152)]; /* 731 */
+	char unused4			[ISODCL (153, 180)]; /* 733 */
+	char root_directory_record	[ISODCL (181, 214)]; /* 9.1 */
+};
+
+/* We use this to help us look up the parent inode numbers. */
+
+struct iso_path_table{
+	unsigned char  name_len[2];	/* 721 */
+	char extent[4];		/* 731 */
+	char  parent[2];	/* 721 */
+	char name[0];
+} __attribute__((packed));
+
+/* high sierra is identical to iso, except that the date is only 6 bytes, and
+   there is an extra reserved byte after the flags */
+
+struct iso_directory_record {
+	char length			[ISODCL (1, 1)]; /* 711 */
+	char ext_attr_length		[ISODCL (2, 2)]; /* 711 */
+	char extent			[ISODCL (3, 10)]; /* 733 */
+	char size			[ISODCL (11, 18)]; /* 733 */
+	char date			[ISODCL (19, 25)]; /* 7 by 711 */
+	char flags			[ISODCL (26, 26)];
+	char file_unit_size		[ISODCL (27, 27)]; /* 711 */
+	char interleave			[ISODCL (28, 28)]; /* 711 */
+	char volume_sequence_number	[ISODCL (29, 32)]; /* 723 */
+	unsigned char name_len		[ISODCL (33, 33)]; /* 711 */
+	char name			[0];
+} __attribute__((packed));
+
+#define ISOFS_BLOCK_BITS 11
+#define ISOFS_BLOCK_SIZE 2048
+
+#define ISOFS_BUFFER_SIZE(INODE) ((INODE)->i_sb->s_blocksize)
+#define ISOFS_BUFFER_BITS(INODE) ((INODE)->i_sb->s_blocksize_bits)
+
+#define ISOFS_SUPER_MAGIC 0x9660
+
+#ifdef __KERNEL__
+/* Number conversion inlines, named after the section in ISO 9660
+   they correspond to. */
+
+#include <asm/byteorder.h>
+#include <asm/unaligned.h>
+#include <linux/iso_fs_i.h>
+#include <linux/iso_fs_sb.h>
+
+static inline struct isofs_sb_info *ISOFS_SB(struct super_block *sb)
+{
+	return sb->s_fs_info;
+}
+
+static inline struct iso_inode_info *ISOFS_I(struct inode *inode)
+{
+	return container_of(inode, struct iso_inode_info, vfs_inode);
+}
+
+static inline int isonum_711(char *p)
+{
+	return *(u8 *)p;
+}
+static inline int isonum_712(char *p)
+{
+	return *(s8 *)p;
+}
+static inline unsigned int isonum_721(char *p)
+{
+	return le16_to_cpu(get_unaligned((__le16 *)p));
+}
+static inline unsigned int isonum_722(char *p)
+{
+	return be16_to_cpu(get_unaligned((__le16 *)p));
+}
+static inline unsigned int isonum_723(char *p)
+{
+	/* Ignore bigendian datum due to broken mastering programs */
+	return le16_to_cpu(get_unaligned((__le16 *)p));
+}
+static inline unsigned int isonum_731(char *p)
+{
+	return le32_to_cpu(get_unaligned((__le32 *)p));
+}
+static inline unsigned int isonum_732(char *p)
+{
+	return be32_to_cpu(get_unaligned((__le32 *)p));
+}
+static inline unsigned int isonum_733(char *p)
+{
+	/* Ignore bigendian datum due to broken mastering programs */
+	return le32_to_cpu(get_unaligned((__le32 *)p));
+}
+extern int iso_date(char *, int);
+
+struct inode;		/* To make gcc happy */
+
+extern int parse_rock_ridge_inode(struct iso_directory_record *, struct inode *);
+extern int get_rock_ridge_filename(struct iso_directory_record *, char *, struct inode *);
+extern int isofs_name_translate(struct iso_directory_record *, char *, struct inode *);
+
+int get_joliet_filename(struct iso_directory_record *, unsigned char *, struct inode *);
+int get_acorn_filename(struct iso_directory_record *, char *, struct inode *);
+
+extern struct dentry *isofs_lookup(struct inode *, struct dentry *, struct nameidata *);
+extern struct buffer_head *isofs_bread(struct inode *, sector_t);
+extern int isofs_get_blocks(struct inode *, sector_t, struct buffer_head **, unsigned long);
+
+extern struct inode *isofs_iget(struct super_block *sb,
+                                unsigned long block,
+                                unsigned long offset);
+
+/* Because the inode number is no longer relevant to finding the
+ * underlying meta-data for an inode, we are free to choose a more
+ * convenient 32-bit number as the inode number.  The inode numbering
+ * scheme was recommended by Sergey Vlasov and Eric Lammerts. */
+static inline unsigned long isofs_get_ino(unsigned long block,
+					  unsigned long offset,
+					  unsigned long bufbits)
+{
+	return (block << (bufbits - 5)) | (offset >> 5);
+}
+
+/* Every directory can have many redundant directory entries scattered
+ * throughout the directory tree.  First there is the directory entry
+ * with the name of the directory stored in the parent directory.
+ * Then, there is the "." directory entry stored in the directory
+ * itself.  Finally, there are possibly many ".." directory entries
+ * stored in all the subdirectories.
+ *
+ * In order for the NFS get_parent() method to work and for the
+ * general consistency of the dcache, we need to make sure the
+ * "i_iget5_block" and "i_iget5_offset" all point to exactly one of
+ * the many redundant entries for each directory.  We normalize the
+ * block and offset by always making them point to the "."  directory.
+ *
+ * Notice that we do not use the entry for the directory with the name
+ * that is located in the parent directory.  Even though choosing this
+ * first directory is more natural, it is much easier to find the "."
+ * entry in the NFS get_parent() method because it is implicitly
+ * encoded in the "extent + ext_attr_length" fields of _all_ the
+ * redundant entries for the directory.  Thus, it can always be
+ * reached regardless of which directory entry you have in hand.
+ *
+ * This works because the "." entry is simply the first directory
+ * record when you start reading the file that holds all the directory
+ * records, and this file starts at "extent + ext_attr_length" blocks.
+ * Because the "." entry is always the first entry listed in the
+ * directories file, the normalized "offset" value is always 0.
+ *
+ * You should pass the directory entry in "de".  On return, "block"
+ * and "offset" will hold normalized values.  Only directories are
+ * affected making it safe to call even for non-directory file
+ * types. */
+static inline void
+isofs_normalize_block_and_offset(struct iso_directory_record* de,
+				 unsigned long *block,
+				 unsigned long *offset)
+{
+	/* Only directories are normalized. */
+	if (de->flags[0] & 2) {
+		*offset = 0;
+		*block = (unsigned long)isonum_733(de->extent)
+			+ (unsigned long)isonum_711(de->ext_attr_length);
+	}
+}
+
+extern struct inode_operations isofs_dir_inode_operations;
+extern struct file_operations isofs_dir_operations;
+extern struct address_space_operations isofs_symlink_aops;
+extern struct export_operations isofs_export_ops;
+
+/* The following macros are used to check for memory leaks. */
+#ifdef LEAK_CHECK
+#define free_s leak_check_free_s
+#define malloc leak_check_malloc
+#define sb_bread leak_check_bread
+#define brelse leak_check_brelse
+extern void * leak_check_malloc(unsigned int size);
+extern void leak_check_free_s(void * obj, int size);
+extern struct buffer_head * leak_check_bread(struct super_block *sb, int block);
+extern void leak_check_brelse(struct buffer_head * bh);
+#endif /* LEAK_CHECK */
+
+#endif /* __KERNEL__ */
+
+#endif