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
97 lines
3.1 KiB
C
97 lines
3.1 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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struct sockaddr_un;
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struct ancillary;
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/* buffer.c */
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struct buf *get_block(dev_t dev, pino_t inum);
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void put_block(dev_t dev, pino_t inum);
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/* cache.c */
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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, pmode_t mode);
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void dup_inode(struct inode *ip);
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struct inode *find_inode(pino_t numb);
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void free_inode(struct inode *rip);
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int fs_putnode(message *fs_m_in, message *fs_m_out);
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void init_inode_cache(void);
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struct inode *get_inode(dev_t dev, pino_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_ftrunc(message *fs_m_in, message *fs_m_out);
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int truncate_inode(struct inode *rip, off_t newsize);
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/* main.c */
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void reply(endpoint_t who, message *m_out);
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/* misc.c */
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int fs_sync(message *fs_m_in, message *fs_m_out);
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/* mount.c */
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int fs_unmount(message *fs_m_in, message *fs_m_out);
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/* open.c */
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int fs_newnode(message *fs_m_in, message *fs_m_out);
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/* read.c */
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int fs_readwrite(message *fs_m_in, message *fs_m_out);
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/* utility.c */
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time_t clock_time(void);
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int no_sys(message *pfs_m_in, message *pfs_m_out);
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/* stadir.c */
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int fs_stat(message *fs_m_in, message *fs_m_out);
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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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/* dev_uds.c */
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int uds_open(message *dev_m_in, message *dev_m_out);
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int uds_close(message *dev_m_in, message *dev_m_out);
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int uds_read(message *dev_m_in, message *dev_m_out);
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int uds_write(message *dev_m_in, message *dev_m_out);
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int uds_ioctl(message *dev_m_in, message *dev_m_out);
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int uds_select(message *dev_m_in, message *dev_m_out);
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int uds_unsuspend(endpoint_t m_source, int minor);
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int uds_cancel(message *dev_m_in, message *dev_m_out);
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/* uds.c */
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void uds_init(void);
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int do_accept(message *dev_m_in, message *dev_m_out);
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int do_connect(message *dev_m_in, message *dev_m_out);
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int do_listen(message *dev_m_in, message *dev_m_out);
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int do_socket(message *dev_m_in, message *dev_m_out);
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int do_bind(message *dev_m_in, message *dev_m_out);
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int do_getsockname(message *dev_m_in, message *dev_m_out);
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int do_getpeername(message *dev_m_in, message *dev_m_out);
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int do_shutdown(message *dev_m_in, message *dev_m_out);
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int do_socketpair(message *dev_m_in, message *dev_m_out);
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int do_getsockopt_sotype(message *dev_m_in, message *dev_m_out);
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int do_getsockopt_peercred(message *dev_m_in, message *dev_m_out);
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int do_getsockopt_sndbuf(message *dev_m_in, message *dev_m_out);
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int do_setsockopt_sndbuf(message *dev_m_in, message *dev_m_out);
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int do_getsockopt_rcvbuf(message *dev_m_in, message *dev_m_out);
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int do_setsockopt_rcvbuf(message *dev_m_in, message *dev_m_out);
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int do_sendto(message *dev_m_in, message *dev_m_out);
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int do_recvfrom(message *dev_m_in, message *dev_m_out);
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int do_sendmsg(message *dev_m_in, message *dev_m_out);
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int do_recvmsg(message *dev_m_in, message *dev_m_out);
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int perform_connection(message *dev_m_in, message *dev_m_out, struct
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sockaddr_un *addr, int minorx, int minory);
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int clear_fds(int minor, struct ancillary *data);
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#endif
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