/
ptyfs.h
166 lines (147 loc) · 5.9 KB
/
ptyfs.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
/* $NetBSD: ptyfs.h,v 1.6 2005/12/11 12:24:29 christos Exp $ */
/*
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)procfs.h 8.9 (Berkeley) 5/14/95
*/
/*
* Copyright (c) 1993 Jan-Simon Pendry
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)procfs.h 8.9 (Berkeley) 5/14/95
*/
#ifndef _FS_PTYFS_PTYFS_H_
#define _FS_PTYFS_PTYFS_H_
#ifdef _KERNEL
/*
* The different types of node in a ptyfs filesystem
*/
typedef enum {
PTYFSpts, /* The slave side of a pty */
PTYFSptc, /* The controlling side of a pty */
PTYFSroot, /* the filesystem root */
} ptyfstype;
/*
* control data for the proc file system.
*/
struct ptyfsnode {
LIST_ENTRY(ptyfsnode) ptyfs_hash; /* hash chain */
struct vnode *ptyfs_vnode; /* vnode associated with this ptyfsnode */
ptyfstype ptyfs_type; /* type of ptyfs node */
int ptyfs_pty; /* the pty index */
u_long ptyfs_fileno; /* unique file id */
int ptyfs_flag; /* status flag for times */
#define PTYFS_ACCESS 1
#define PTYFS_MODIFY 2
#define PTYFS_CHANGE 4
/* Attribute information */
uid_t ptyfs_uid;
gid_t ptyfs_gid;
mode_t ptyfs_mode;
int ptyfs_flags;
struct timespec ptyfs_ctime, ptyfs_mtime, ptyfs_atime, ptyfs_birthtime;
};
struct ptyfsmount {
gid_t pmnt_gid;
mode_t pmnt_mode;
};
#define VFSTOPTY(mp) ((struct ptyfsmount *)(mp)->mnt_data)
#endif /* _KERNEL */
struct ptyfs_args {
int version;
gid_t gid;
mode_t mode;
};
#define PTYFS_ARGSVERSION 1
/*
* Kernel stuff follows
*/
#ifdef _KERNEL
#define UIO_MX 32
#define PTYFS_FILENO(pty, type) \
((type == PTYFSroot) ? 2 : \
((((pty) + 1) * 2 + (((type) == PTYFSpts) ? 1 : 2))))
#define PTYFS_MAKEDEV(ptyfs) \
pty_makedev((ptyfs)->ptyfs_type == PTYFSpts ? 't' : 'p', (ptyfs)->ptyfs_pty)
#define PTYFS_ITIMES(ptyfs, acc, mod, cre) \
while ((ptyfs)->ptyfs_flag & (PTYFS_ACCESS|PTYFS_CHANGE|PTYFS_MODIFY)) \
ptyfs_itimes(ptyfs, acc, mod, cre)
/*
* Convert between ptyfsnode vnode
*/
#define VTOPTYFS(vp) ((struct ptyfsnode *)(vp)->v_data)
#define PTYFSTOV(ptyfs) ((ptyfs)->ptyfs_vnode)
int ptyfs_freevp(struct vnode *);
int ptyfs_allocvp(struct mount *, struct vnode **, ptyfstype, int,
struct lwp *);
void ptyfs_hashinit(void);
void ptyfs_hashreinit(void);
void ptyfs_hashdone(void);
void ptyfs_itimes(struct ptyfsnode *, const struct timespec *,
const struct timespec *, const struct timespec *);
extern int (**ptyfs_vnodeop_p)(void *);
extern struct vfsops ptyfs_vfsops;
int ptyfs_root(struct mount *, struct vnode **);
#ifdef SYSCTL_SETUP_PROTO
SYSCTL_SETUP_PROTO(sysctl_vfs_ptyfs_setup);
#endif /* SYSCTL_SETUP_PROTO */
#endif /* _KERNEL */
#endif /* _FS_PTYFS_PTYFS_H_ */