2 * Copyright (c) 1993 Jan-Simon Pendry
4 * The Regents of the University of California. All rights reserved.
6 * This code is derived from software contributed to Berkeley by
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18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
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37 * @(#)procfs.h 8.9 (Berkeley) 5/14/95
40 * $FreeBSD: src/sys/miscfs/procfs/procfs.h,v 1.32.2.3 2002/01/22 17:22:59 nectar Exp $
44 * The different types of node in a procfs filesystem
47 Proot, /* the filesystem root */
48 Pcurproc, /* symbolic link for curproc */
49 Pproc, /* a process-specific sub-directory */
50 Pfile, /* the executable file */
51 Pmem, /* the process's memory image */
52 Pregs, /* the process's register set */
53 Pfpregs, /* the process's FP register set */
54 Pdbregs, /* the process's debug register set */
55 Pctl, /* process control */
56 Pstatus, /* process status */
57 Pnote, /* process notifier */
58 Pnotepg, /* process group notifier */
59 Pmap, /* memory map */
60 Ptype, /* executable type */
61 Pcmdline, /* command line */
62 Prlimit /* resource limits */
66 * control data for the proc file system.
69 struct pfsnode *pfs_next; /* next on list */
70 struct vnode *pfs_vnode; /* vnode associated with this pfsnode */
71 pfstype pfs_type; /* type of procfs node */
72 pid_t pfs_pid; /* associated process */
73 u_short pfs_mode; /* mode bits for stat() */
74 u_long pfs_flags; /* open flags */
75 u_long pfs_fileno; /* unique file id */
76 pid_t pfs_lockowner; /* pfs lock owner */
79 #define PROCFS_NOTELEN 64 /* max length of a note (/proc/$pid/note) */
80 #define PROCFS_CTLLEN 8 /* max length of a ctl msg (/proc/$pid/ctl */
81 #define PROCFS_NAMELEN 8 /* max length of a filename component */
84 * Kernel stuff follows
87 #define CNEQ(cnp, s, len) \
88 ((cnp)->cn_namelen == (len) && \
89 (bcmp((s), (cnp)->cn_nameptr, (len)) == 0))
91 #define PROCFS_FILENO(pid, type) \
94 ((((pid)+1) << 4) + ((int) (type))))
96 #define CHECKIO(p1, p2) \
97 ((((p1)->p_cred->pc_ucred->cr_uid == (p2)->p_cred->p_ruid) && \
98 ((p1)->p_cred->p_ruid == (p2)->p_cred->p_ruid) && \
99 ((p1)->p_cred->p_svuid == (p2)->p_cred->p_ruid) && \
100 ((p2)->p_flag & (P_SUGID|P_INEXEC)) == 0) || \
101 (suser_xxx((p1)->p_cred->pc_ucred, (p1), PRISON_ROOT) == 0))
104 * Convert between pfsnode vnode
106 #define VTOPFS(vp) ((struct pfsnode *)(vp)->v_data)
107 #define PFSTOV(pfs) ((pfs)->pfs_vnode)
109 typedef struct vfs_namemap vfs_namemap_t;
115 int vfs_getuserstr __P((struct uio *, char *, int *));
116 vfs_namemap_t *vfs_findname __P((vfs_namemap_t *, char *, int));
118 /* <machine/reg.h> */
123 #define PFIND(pid) ((pid) ? pfind(pid) : &proc0)
125 void procfs_exit __P((struct proc *));
126 int procfs_freevp __P((struct vnode *));
127 int procfs_allocvp __P((struct mount *, struct vnode **, long, pfstype));
128 struct vnode *procfs_findtextvp __P((struct proc *));
129 int procfs_sstep __P((struct proc *));
130 void procfs_fix_sstep __P((struct proc *));
131 int procfs_read_regs __P((struct proc *, struct reg *));
132 int procfs_write_regs __P((struct proc *, struct reg *));
133 int procfs_read_fpregs __P((struct proc *, struct fpreg *));
134 int procfs_write_fpregs __P((struct proc *, struct fpreg *));
135 int procfs_read_dbregs __P((struct proc *, struct dbreg *));
136 int procfs_write_dbregs __P((struct proc *, struct dbreg *));
137 int procfs_donote __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
138 int procfs_doregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
139 int procfs_dofpregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
140 int procfs_dodbregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
141 int procfs_domem __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
142 int procfs_doctl __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
143 int procfs_dostatus __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
144 int procfs_domap __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
145 int procfs_dotype __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
146 int procfs_docmdline __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
147 int procfs_dorlimit __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio));
149 /* functions to check whether or not files should be displayed */
150 int procfs_validfile __P((struct proc *));
151 int procfs_validfpregs __P((struct proc *));
152 int procfs_validregs __P((struct proc *));
153 int procfs_validdbregs __P((struct proc *));
154 int procfs_validmap __P((struct proc *));
155 int procfs_validtype __P((struct proc *));
157 #define PROCFS_LOCKED 0x01
158 #define PROCFS_WANT 0x02
160 extern vop_t **procfs_vnodeop_p;
162 int procfs_root __P((struct mount *, struct vnode **));
163 int procfs_rw __P((struct vop_read_args *));