a9d0ffbd0d
The next commit will make mode_t 32-bits, ino_t 64-bits, nlink_t 32-bits, and off_t 64-bits. However, in the protocol there is no room for that. When analyzing the usage of these data types we can see that of mode_t we currently use 15 bits and that future flags (if copied from NetBSD) are only of importance to VFS and not to the actual file system on disk. Therefore we can get away with keeping the protocol version of mode_t (pmode_t) 16 bits. At this point it is unlikely that MINIX will support file systems that can hold more than 2^32 files. Keeping the protocol version of ino_t (pino_t) 32-bits and exposing it as 64-bits to the rest of the system is fine. uid_t and gid_t are already 32-bits, but in behind the scenes they're 16-bits. This is sufficient since we don't support uid/gids larger than 2^16-1. off_t will become 64-bits, but the protocol had room reserved for that since it was revised years ago. So to make the difference clear between what the protocol supports and what is exposed to the system, we define protocol version of these data types. Change-Id: Ifb883aafb222142e69d6dcc3049a47170b78b3ee
84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
#ifndef _SFFS_PROTO_H
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#define _SFFS_PROTO_H
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/* dentry.c */
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void init_dentry(void);
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struct inode *lookup_dentry(struct inode *parent, char *name);
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void add_dentry(struct inode *parent, char *name, struct inode *ino);
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void del_dentry(struct inode *ino);
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/* handle.c */
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int get_handle(struct inode *ino);
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void put_handle(struct inode *ino);
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/* inode.c */
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struct inode *init_inode(void);
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struct inode *find_inode(pino_t ino_nr);
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void get_inode(struct inode *ino);
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void put_inode(struct inode *ino);
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void link_inode(struct inode *parent, struct inode *ino);
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void unlink_inode(struct inode *ino);
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struct inode *get_free_inode(void);
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int have_free_inode(void);
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int have_used_inode(void);
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int do_putnode(void);
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/* link.c */
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int do_create(void);
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int do_mkdir(void);
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int do_unlink(void);
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int do_rmdir(void);
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int do_rename(void);
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/* lookup.c */
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int do_lookup(void);
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/* main.c */
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int main(int argc, char *argv[]);
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/* misc.c */
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int do_fstatfs(void);
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int do_statvfs(void);
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/* mount.c */
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int do_readsuper(void);
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int do_unmount(void);
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/* name.c */
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void normalize_name(char dst[NAME_MAX+1], char *src);
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int compare_name(char *name1, char *name2);
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/* path.c */
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int make_path(char path[PATH_MAX], struct inode *ino);
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int push_path(char path[PATH_MAX], char *name);
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void pop_path(char path[PATH_MAX]);
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/* read.c */
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int do_read(void);
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int do_getdents(void);
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/* stat.c */
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pmode_t get_mode(struct inode *ino, int mode);
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int do_stat(void);
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int do_chmod(void);
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int do_utime(void);
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/* util.c */
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int get_name(cp_grant_id_t grant, size_t len, char name[NAME_MAX+1]);
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int do_noop(void);
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int no_sys(void);
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/* verify.c */
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int verify_path(char *path, struct inode *ino, struct sffs_attr *attr,
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int *stale);
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int verify_inode(struct inode *ino, char path[PATH_MAX],
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struct sffs_attr *attr);
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int verify_dentry(struct inode *parent, char name[NAME_MAX+1],
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char path[PATH_MAX], struct inode **res_ino);
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/* write.c */
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int do_write(void);
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int do_ftrunc(void);
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#endif /* _SFFS_PROTO_H */
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