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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /* $NetBSD: procfs.h,v 1.13 1995/03/29 22:08:30 briggs Exp $ */
23:
24: /*
25: * Copyright (c) 1993 Jan-Simon Pendry
26: * Copyright (c) 1993
27: * The Regents of the University of California. All rights reserved.
28: *
29: * This code is derived from software contributed to Berkeley by
30: * Jan-Simon Pendry.
31: *
32: * Redistribution and use in source and binary forms, with or without
33: * modification, are permitted provided that the following conditions
34: * are met:
35: * 1. Redistributions of source code must retain the above copyright
36: * notice, this list of conditions and the following disclaimer.
37: * 2. Redistributions in binary form must reproduce the above copyright
38: * notice, this list of conditions and the following disclaimer in the
39: * documentation and/or other materials provided with the distribution.
40: * 3. All advertising materials mentioning features or use of this software
41: * must display the following acknowledgement:
42: * This product includes software developed by the University of
43: * California, Berkeley and its contributors.
44: * 4. Neither the name of the University nor the names of its contributors
45: * may be used to endorse or promote products derived from this software
46: * without specific prior written permission.
47: *
48: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58: * SUCH DAMAGE.
59: *
60: * @(#)procfs.h 8.7 (Berkeley) 6/15/94
61: */
62:
63: /*
64: * The different types of node in a procfs filesystem
65: */
66: typedef enum {
67: Proot, /* the filesystem root */
68: Pcurproc, /* symbolic link for curproc */
69: Pproc, /* a process-specific sub-directory */
70: Pfile, /* the executable file */
71: Pmem, /* the process's memory image */
72: Pregs, /* the process's register set */
73: Pfpregs, /* the process's FP register set */
74: Pctl, /* process control */
75: Pstatus, /* process status */
76: Pnote, /* process notifier */
77: Pnotepg /* process group notifier */
78: } pfstype;
79:
80: /*
81: * control data for the proc file system.
82: */
83: struct pfsnode {
84: struct pfsnode *pfs_next; /* next on list */
85: struct vnode *pfs_vnode; /* vnode associated with this pfsnode */
86: pfstype pfs_type; /* type of procfs node */
87: pid_t pfs_pid; /* associated process */
88: u_short pfs_mode; /* mode bits for stat() */
89: u_long pfs_flags; /* open flags */
90: u_long pfs_fileno; /* unique file id */
91: };
92:
93: #define PROCFS_NOTELEN 64 /* max length of a note (/proc/$pid/note) */
94: #define PROCFS_CTLLEN 8 /* max length of a ctl msg (/proc/$pid/ctl */
95:
96: /*
97: * Kernel stuff follows
98: */
99: #ifdef KERNEL
100: #define CNEQ(cnp, s, len) \
101: ((cnp)->cn_namelen == (len) && \
102: (bcmp((s), (cnp)->cn_nameptr, (len)) == 0))
103:
104: /*
105: * Format of a directory entry in /proc, ...
106: * This must map onto struct dirent (see <dirent.h>)
107: */
108: #define PROCFS_NAMELEN 8
109: struct pfsdent {
110: u_int32_t d_fileno;
111: u_int16_t d_reclen;
112: u_int8_t d_type;
113: u_int8_t d_namlen;
114: char d_name[PROCFS_NAMELEN];
115: };
116: #define UIO_MX sizeof(struct pfsdent)
117: #define PROCFS_FILENO(pid, type) \
118: (((type) < Pproc) ? \
119: ((type) + 2) : \
120: ((((pid)+1) << 4) + ((int) (type))))
121:
122: /*
123: * Convert between pfsnode vnode
124: */
125: #define VTOPFS(vp) ((struct pfsnode *)(vp)->v_data)
126: #define PFSTOV(pfs) ((pfs)->pfs_vnode)
127:
128: typedef struct vfs_namemap vfs_namemap_t;
129: struct vfs_namemap {
130: const char *nm_name;
131: int nm_val;
132: };
133:
134: int vfs_getuserstr __P((struct uio *, char *, int *));
135: vfs_namemap_t *vfs_findname __P((vfs_namemap_t *, char *, int));
136:
137: #define PFIND(pid) ((pid) ? pfind(pid) : &kernel_proc)
138: int procfs_freevp __P((struct vnode *));
139: int procfs_allocvp __P((struct mount *, struct vnode **, long, pfstype));
140: struct vnode *procfs_findtextvp __P((struct proc *));
141: int procfs_donote __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
142: int procfs_doregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
143: int procfs_dofpregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
144: int procfs_domem __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
145: int procfs_doctl __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
146: int procfs_dostatus __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
147:
148: /* functions to check whether or not files should be displayed */
149: int procfs_validfile __P((struct proc *));
150: int procfs_validfpregs __P((struct proc *));
151: int procfs_validregs __P((struct proc *));
152:
153: #define PROCFS_LOCKED 0x01
154: #define PROCFS_WANT 0x02
155:
156: extern int (**procfs_vnodeop_p)();
157: extern struct vfsops procfs_vfsops;
158:
159: /*
160: * Prototypes for procfs vnode ops
161: */
162: int procfs_badop(); /* varargs */
163: int procfs_rw __P((struct vop_read_args *));
164: int procfs_lookup __P((struct vop_lookup_args *));
165: #define procfs_create ((int (*) __P((struct vop_create_args *))) procfs_badop)
166: #define procfs_mknod ((int (*) __P((struct vop_mknod_args *))) procfs_badop)
167: int procfs_open __P((struct vop_open_args *));
168: int procfs_close __P((struct vop_close_args *));
169: int procfs_access __P((struct vop_access_args *));
170: int procfs_getattr __P((struct vop_getattr_args *));
171: int procfs_setattr __P((struct vop_setattr_args *));
172: #define procfs_read procfs_rw
173: #define procfs_write procfs_rw
174: int procfs_ioctl __P((struct vop_ioctl_args *));
175: #define procfs_select ((int (*) __P((struct vop_select_args *))) procfs_badop)
176: #define procfs_mmap ((int (*) __P((struct vop_mmap_args *))) procfs_badop)
177: #define procfs_fsync ((int (*) __P((struct vop_fsync_args *))) procfs_badop)
178: #define procfs_seek ((int (*) __P((struct vop_seek_args *))) procfs_badop)
179: #define procfs_remove ((int (*) __P((struct vop_remove_args *))) procfs_badop)
180: #define procfs_link ((int (*) __P((struct vop_link_args *))) procfs_badop)
181: #define procfs_rename ((int (*) __P((struct vop_rename_args *))) procfs_badop)
182: #define procfs_mkdir ((int (*) __P((struct vop_mkdir_args *))) procfs_badop)
183: #define procfs_rmdir ((int (*) __P((struct vop_rmdir_args *))) procfs_badop)
184: #define procfs_symlink ((int (*) __P((struct vop_symlink_args *))) procfs_badop)
185: int procfs_readdir __P((struct vop_readdir_args *));
186: int procfs_readlink __P((struct vop_readlink_args *));
187: int procfs_abortop __P((struct vop_abortop_args *));
188: int procfs_inactive __P((struct vop_inactive_args *));
189: int procfs_reclaim __P((struct vop_reclaim_args *));
190: #define procfs_lock ((int (*) __P((struct vop_lock_args *))) nullop)
191: #define procfs_unlock ((int (*) __P((struct vop_unlock_args *))) nullop)
192: int procfs_bmap __P((struct vop_bmap_args *));
193: #define procfs_strategy ((int (*) __P((struct vop_strategy_args *))) procfs_badop)
194: int procfs_print __P((struct vop_print_args *));
195: #define procfs_islocked ((int (*) __P((struct vop_islocked_args *))) nullop)
196: #define procfs_advlock ((int (*) __P((struct vop_advlock_args *))) procfs_badop)
197: #define procfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *))) procfs_badop)
198: #define procfs_valloc ((int (*) __P((struct vop_valloc_args *))) procfs_badop)
199: #define procfs_vfree ((int (*) __P((struct vop_vfree_args *))) nullop)
200: #define procfs_truncate ((int (*) __P((struct vop_truncate_args *))) procfs_badop)
201: #define procfs_update ((int (*) __P((struct vop_update_args *))) nullop)
202: #endif /* KERNEL */
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