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4e89d26e JSP |
1 | /* |
2 | * Copyright (c) 1993 The Regents of the University of California. | |
3 | * Copyright (c) 1993 Jan-Simon Pendry | |
4 | * All rights reserved. | |
5 | * | |
6 | * This code is derived from software contributed to Berkeley by | |
7 | * Jan-Simon Pendry. | |
8 | * | |
9 | * %sccs.include.redist.c% | |
10 | * | |
11 | * @(#)procfs.h 8.1 (Berkeley) %G% | |
12 | * | |
13 | * From: | |
14 | * $Id: procfs.h,v 3.2 1993/12/15 09:40:17 jsp Exp $ | |
15 | */ | |
16 | ||
17 | /* | |
18 | * The different types of node in a procfs filesystem | |
19 | */ | |
20 | typedef enum { | |
21 | Proot, /* the filesystem root */ | |
22 | Pproc, /* a process-specific sub-directory */ | |
23 | Pfile, /* the executable file */ | |
24 | Pmem, /* the process's memory image */ | |
25 | Pregs, /* the process's register set */ | |
26 | Pctl, /* process control */ | |
27 | Pstatus, /* process status */ | |
28 | Pnote, /* process notifier */ | |
29 | Pnotepg /* process group notifier */ | |
30 | } pfstype; | |
31 | ||
32 | /* | |
33 | * control data for the proc file system. | |
34 | */ | |
35 | struct pfsnode { | |
36 | struct pfsnode *pfs_next; /* next on list */ | |
37 | struct vnode *pfs_vnode; /* vnode associated with this pfsnode */ | |
38 | pfstype pfs_type; /* type of procfs node */ | |
39 | pid_t pfs_pid; /* associated process */ | |
40 | u_short pfs_mode; /* mode bits for stat() */ | |
41 | u_long pfs_flags; /* open flags */ | |
42 | u_long pfs_fileno; /* unique file id */ | |
43 | }; | |
44 | ||
45 | #define PROCFS_NOTELEN 64 /* max length of a note (/proc/$pid/note) */ | |
46 | #define PROCFS_CTLLEN 8 /* max length of a ctl msg (/proc/$pid/ctl */ | |
47 | ||
48 | /* | |
49 | * Kernel stuff follows | |
50 | */ | |
51 | #ifdef KERNEL | |
52 | #define CNEQ(cnp, s, len) \ | |
53 | ((cnp)->cn_namelen == (len) && \ | |
54 | (bcmp((s), (cnp)->cn_nameptr, (len)) == 0)) | |
55 | ||
56 | /* | |
57 | * Format of a directory entry in /proc, ... | |
58 | * This must map onto struct dirent (see <dirent.h>) | |
59 | */ | |
60 | #define PROCFS_NAMELEN 8 | |
61 | struct pfsdent { | |
62 | u_long d_fileno; | |
63 | u_short d_reclen; | |
64 | u_char d_type; | |
65 | u_char d_namlen; | |
66 | char d_name[PROCFS_NAMELEN]; | |
67 | }; | |
68 | #define UIO_MX sizeof(struct pfsdent) | |
69 | #define PROCFS_FILENO(pid, type) \ | |
70 | (((type) == Proot) ? \ | |
71 | 2 : \ | |
72 | ((((pid)+1) << 3) + ((int) (type)))) | |
73 | ||
74 | /* | |
75 | * Convert between pfsnode vnode | |
76 | */ | |
77 | #define VTOPFS(vp) ((struct pfsnode *)(vp)->v_data) | |
78 | #define PFSTOV(pfs) ((pfs)->pfs_vnode) | |
79 | ||
80 | typedef struct vfs_namemap vfs_namemap_t; | |
81 | struct vfs_namemap { | |
82 | const char *nm_name; | |
83 | int nm_val; | |
84 | }; | |
85 | ||
86 | extern int vfs_getuserstr __P((struct uio *, char *, int *)); | |
87 | extern vfs_namemap_t *vfs_findname __P((vfs_namemap_t *, char *, int)); | |
88 | ||
89 | /* <machine/reg.h> */ | |
90 | struct reg; | |
91 | ||
92 | #define PFIND(pid) ((pid) ? pfind(pid) : &proc0) | |
93 | extern int procfs_freevp __P((struct vnode *)); | |
94 | extern int procfs_allocvp __P((struct mount *, struct vnode **, long, pfstype)); | |
95 | extern struct vnode *procfs_findtextvp __P((struct proc *)); | |
96 | extern int procfs_sstep __P((struct proc *)); | |
97 | extern int procfs_read_regs __P((struct proc *, struct reg *)); | |
98 | extern int procfs_write_regs __P((struct proc *, struct reg *)); | |
99 | extern int procfs_donote __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); | |
100 | extern int procfs_doregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); | |
101 | extern int procfs_domem __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); | |
102 | extern int procfs_doctl __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); | |
103 | extern int procfs_dostatus __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); | |
104 | ||
105 | #define PROCFS_LOCKED 0x01 | |
106 | #define PROCFS_WANT 0x02 | |
107 | ||
108 | extern int (**procfs_vnodeop_p)(); | |
109 | extern struct vfsops procfs_vfsops; | |
110 | ||
111 | /* | |
112 | * Prototypes for procfs vnode ops | |
113 | */ | |
114 | int procfs_badop(); /* varargs */ | |
115 | int procfs_rw __P((struct vop_read_args *)); | |
116 | int procfs_lookup __P((struct vop_lookup_args *)); | |
117 | #define procfs_create ((int (*) __P((struct vop_create_args *))) procfs_badop) | |
118 | #define procfs_mknod ((int (*) __P((struct vop_mknod_args *))) procfs_badop) | |
119 | int procfs_open __P((struct vop_open_args *)); | |
120 | int procfs_close __P((struct vop_close_args *)); | |
121 | int procfs_access __P((struct vop_access_args *)); | |
122 | int procfs_getattr __P((struct vop_getattr_args *)); | |
123 | int procfs_setattr __P((struct vop_setattr_args *)); | |
124 | #define procfs_read procfs_rw | |
125 | #define procfs_write procfs_rw | |
126 | int procfs_ioctl __P((struct vop_ioctl_args *)); | |
127 | #define procfs_select ((int (*) __P((struct vop_select_args *))) procfs_badop) | |
128 | #define procfs_mmap ((int (*) __P((struct vop_mmap_args *))) procfs_badop) | |
129 | #define procfs_fsync ((int (*) __P((struct vop_fsync_args *))) procfs_badop) | |
130 | #define procfs_seek ((int (*) __P((struct vop_seek_args *))) procfs_badop) | |
131 | #define procfs_remove ((int (*) __P((struct vop_remove_args *))) procfs_badop) | |
132 | #define procfs_link ((int (*) __P((struct vop_link_args *))) procfs_badop) | |
133 | #define procfs_rename ((int (*) __P((struct vop_rename_args *))) procfs_badop) | |
134 | #define procfs_mkdir ((int (*) __P((struct vop_mkdir_args *))) procfs_badop) | |
135 | #define procfs_rmdir ((int (*) __P((struct vop_rmdir_args *))) procfs_badop) | |
136 | #define procfs_symlink ((int (*) __P((struct vop_symlink_args *))) procfs_badop) | |
137 | int procfs_readdir __P((struct vop_readdir_args *)); | |
138 | #define procfs_readlink ((int (*) __P((struct vop_readlink_args *))) procfs_badop) | |
139 | int procfs_abortop __P((struct vop_abortop_args *)); | |
140 | int procfs_inactive __P((struct vop_inactive_args *)); | |
141 | int procfs_reclaim __P((struct vop_reclaim_args *)); | |
142 | #define procfs_lock ((int (*) __P((struct vop_lock_args *))) nullop) | |
143 | #define procfs_unlock ((int (*) __P((struct vop_unlock_args *))) nullop) | |
144 | int procfs_bmap __P((struct vop_bmap_args *)); | |
145 | #define procfs_strategy ((int (*) __P((struct vop_strategy_args *))) procfs_badop) | |
146 | int procfs_print __P((struct vop_print_args *)); | |
147 | #define procfs_islocked ((int (*) __P((struct vop_islocked_args *))) nullop) | |
148 | #define procfs_advlock ((int (*) __P((struct vop_advlock_args *))) procfs_badop) | |
149 | #define procfs_pathconf ((int (*) __P((struct vop_pathconf_args *))) procfs_badop) | |
150 | #define procfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *))) procfs_badop) | |
151 | #define procfs_valloc ((int (*) __P((struct vop_valloc_args *))) procfs_badop) | |
152 | #define procfs_vfree ((int (*) __P((struct vop_vfree_args *))) nullop) | |
153 | #define procfs_truncate ((int (*) __P((struct vop_truncate_args *))) procfs_badop) | |
154 | #define procfs_update ((int (*) __P((struct vop_update_args *))) nullop) | |
155 | #endif /* KERNEL */ |