f859061eaf
In order to avoid creating libfsdriver exceptions, two changes to VFS are necessary: - the returned position field for reads/writes is no longer abused to return the new pipe size; VFS is perfectly capable of updating the size itself; - during system startup, PFS is now sent a mount request, just like all other file systems. In proper "two steps forward, one step back" fashion, the latter point has the consequence that PFS can no longer drop its privileges at startup. This is probably best resolved with a more general solution for all boot image system services. The upside is that PFS no longer needs to be linked with libc. Change-Id: I92e2410cdb0d93d0e6107bae10bc08efc2dbb8b3
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
#ifndef __PFS_PROTO_H__
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#define __PFS_PROTO_H__
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/* Function prototypes. */
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/* Structs used in prototypes must be declared as such first. */
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struct buf;
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struct inode;
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/* buffer.c */
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struct buf *get_block(dev_t dev, ino_t inum);
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void put_block(dev_t dev, ino_t inum);
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void buf_pool(void);
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/* inode.c */
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struct inode *alloc_inode(dev_t dev, mode_t mode, uid_t uid, gid_t gid);
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void dup_inode(struct inode *ip);
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struct inode *find_inode(ino_t numb);
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void free_inode(struct inode *rip);
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int fs_putnode(ino_t ino_nr, unsigned int count);
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void init_inode_cache(void);
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struct inode *get_inode(dev_t dev, ino_t numb);
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void put_inode(struct inode *rip);
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void update_times(struct inode *rip);
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void wipe_inode(struct inode *rip);
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/* link.c */
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int fs_trunc(ino_t ino_nr, off_t start, off_t end);
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int truncate_inode(struct inode *rip, off_t newsize);
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/* misc.c */
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int fs_chmod(ino_t ino_nr, mode_t *mode);
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/* mount.c */
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int fs_mount(dev_t dev, unsigned int flags, struct fsdriver_node *node,
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unsigned int *res_flags);
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void fs_unmount(void);
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/* open.c */
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int fs_newnode(mode_t mode, uid_t uid, gid_t gid, dev_t dev,
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struct fsdriver_node *node);
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/* read.c */
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ssize_t fs_read(ino_t ino_nr, struct fsdriver_data *data, size_t bytes,
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off_t pos, int call);
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ssize_t fs_write(ino_t ino_nr, struct fsdriver_data *data, size_t bytes,
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off_t pos, int call);
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/* stadir.c */
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int fs_stat(ino_t ino_nr, struct stat *statbuf);
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/* super.c */
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bit_t alloc_bit(void);
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void free_bit(bit_t bit_returned);
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#endif
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