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      1 /*	$NetBSD: compat_linux.h,v 1.7 2019/10/28 15:26:09 tsutsui Exp $	*/
      2 /*	$OpenBSD: compat_linux.h,v 1.5 2006/01/15 17:58:27 deraadt Exp $	*/
      3 
      4 /*
      5  * Copyright (c) 2005 Uwe Stuehler <uwe (at) bsdx.de>
      6  *
      7  * Permission to use, copy, modify, and distribute this software for any
      8  * purpose with or without fee is hereby granted, provided that the above
      9  * copyright notice and this permission notice appear in all copies.
     10  *
     11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     18  */
     19 
     20 /*
     21  * Declare the things that we need from the Linux headers.
     22  */
     23 
     24 #define	IS_ERR(ptr)	((unsigned long)(ptr) > (unsigned long)-1000L)
     25 
     26 #define MKDEV(ma,mi)	((ma)<<8 | (mi))
     27 
     28 #define S_IFBLK		0060000
     29 #define S_IFCHR		0020000
     30 
     31 struct file;
     32 struct inode;
     33 
     34 typedef long loff_t;
     35 
     36 struct file_operations {
     37 	struct module *owner;
     38 	void (*llseek) (void);
     39 	ssize_t (*read) (struct file *, char *, size_t, loff_t *);
     40 	ssize_t (*write) (struct file *, const char *, size_t, loff_t *);
     41 	void (*readdir) (void);
     42 	void (*poll) (void);
     43 	void (*ioctl) (void);
     44 	void (*mmap) (void);
     45 	int (*open) (struct inode *, struct file *);
     46 	void (*flush) (void);
     47 	int (*release) (struct inode *, struct file *);
     48 	void (*fsync) (void);
     49 	void (*fasync) (void);
     50 	void (*lock) (void);
     51 	void (*readv) (void);
     52 	void (*writev) (void);
     53 	void (*sendpage) (void);
     54 	void (*get_unmapped_area)(void);
     55 #ifdef MAGIC_ROM_PTR
     56 	void (*romptr) (void);
     57 #endif /* MAGIC_ROM_PTR */
     58 };
     59 
     60 extern	struct file *open_exec(const char *);
     61 extern	int kernel_read(struct file *, unsigned long, char *, unsigned long);
     62 extern	int memcmp(const void *, const void *, size_t);
     63 extern	int register_chrdev(unsigned int, const char *, struct file_operations *);
     64 extern	int unregister_chrdev(unsigned int, const char *);
     65 extern	void printk(const char *, ...) __printflike(1, 2);
     66 extern	void *memcpy(void *, const void *, size_t);
     67 extern	void *memset(void *, int, size_t);
     68 
     69 /* procfs support */
     70 struct proc_dir_entry {
     71         unsigned short low_ino;
     72         unsigned short namelen;
     73         const char *name;
     74         unsigned short mode;
     75         unsigned short nlink;
     76         unsigned short uid;
     77         unsigned short gid;
     78         unsigned long size;
     79         void *proc_iops; /* inode operations */
     80         struct file_operations * proc_fops;
     81         void *get_info;
     82         struct module *owner;
     83         struct proc_dir_entry *next, *parent, *subdir;
     84         void *data;
     85         void *read_proc;
     86         void *write_proc;
     87         volatile int count;
     88         int deleted;
     89         unsigned short rdev;
     90 };
     91 extern	struct proc_dir_entry proc_root;
     92 extern	struct proc_dir_entry *proc_mknod(const char*, unsigned short,
     93     struct proc_dir_entry*, unsigned short);
     94 extern	void remove_proc_entry(const char *, struct proc_dir_entry *);
     95