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1 /*-
2  * Copyright (c) 1994 Christos Zoulas
3  * Copyright (c) 1995 Frank van der Linden
4  * Copyright (c) 1995 Scott Bartram
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. The name of the author may not be used to endorse or promote products
16  *    derived from this software without specific prior written permission
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  *
29  * from: svr4_util.h,v 1.5 1994/11/18 02:54:31 christos Exp
30  * from: linux_util.h,v 1.2 1995/03/05 23:23:50 fvdl Exp
31  * $FreeBSD$
32  */
33
34 /*
35  * This file is pretty much the same as Christos' svr4_util.h
36  * (for now).
37  */
38
39 #ifndef _LINUX_UTIL_H_
40 #define _LINUX_UTIL_H_
41
42 #include <vm/vm.h>
43 #include <vm/vm_param.h>
44 #include <vm/pmap.h>
45 #include <machine/vmparam.h>
46 #include <sys/exec.h>
47 #include <sys/sysent.h>
48 #include <sys/syslog.h>
49 #include <sys/cdefs.h>
50 #include <sys/uio.h>
51
52 extern const char linux_emul_path[];
53
54 int linux_emul_convpath(struct thread *, char *, enum uio_seg, char **, int);
55
56 #define LCONVPATH_SEG(td, upath, pathp, i, seg)                         \
57         do {                                                            \
58                 int _error;                                             \
59                                                                         \
60                 _error = linux_emul_convpath(td, upath, seg,            \
61                     pathp, i);                                          \
62                 if (*(pathp) == NULL)                                   \
63                         return (_error);                                \
64         } while (0)
65
66 #define LCONVPATH(td, upath, pathp, i)  \
67    LCONVPATH_SEG(td, upath, pathp, i, UIO_USERSPACE)
68
69 #define LCONVPATHEXIST(td, upath, pathp) LCONVPATH(td, upath, pathp, 0)
70 #define LCONVPATHCREAT(td, upath, pathp) LCONVPATH(td, upath, pathp, 1)
71 #define LFREEPATH(path) free(path, M_TEMP)
72
73 #define DUMMY(s)                                                        \
74 int                                                                     \
75 linux_ ## s(struct thread *td, struct linux_ ## s ## _args *args)       \
76 {                                                                       \
77         static pid_t pid;                                               \
78                                                                         \
79         if (pid != td->td_proc->p_pid) {                                \
80                 linux_msg(td, "syscall %s not implemented", #s);        \
81                 pid = td->td_proc->p_pid;                               \
82         };                                                              \
83         return (ENOSYS);                                                \
84 }                                                                       \
85 struct __hack
86
87 void linux_msg(const struct thread *td, const char *fmt, ...)
88         __printflike(2, 3);
89
90 struct linux_device_handler {
91         char    *bsd_driver_name;
92         char    *linux_driver_name;
93         char    *bsd_device_name;
94         char    *linux_device_name;
95         int     linux_major;
96         int     linux_minor;
97         int     linux_char_device;
98 };
99
100 int     linux_device_register_handler(struct linux_device_handler *h);
101 int     linux_device_unregister_handler(struct linux_device_handler *h);
102 char    *linux_driver_get_name_dev(device_t dev);
103 int     linux_driver_get_major_minor(char *node, int *major, int *minor);
104 char    *linux_get_char_devices(void);
105 void    linux_free_get_char_devices(char *string);
106
107 #endif /* !_LINUX_UTIL_H_ */