procfs.h revision 1.13
1 /* $NetBSD: procfs.h,v 1.13 1995/03/29 22:08:30 briggs Exp $ */ 2 3 /* 4 * Copyright (c) 1993 Jan-Simon Pendry 5 * Copyright (c) 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Jan-Simon Pendry. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)procfs.h 8.7 (Berkeley) 6/15/94 40 */ 41 42 /* 43 * The different types of node in a procfs filesystem 44 */ 45 typedef enum { 46 Proot, /* the filesystem root */ 47 Pcurproc, /* symbolic link for curproc */ 48 Pproc, /* a process-specific sub-directory */ 49 Pfile, /* the executable file */ 50 Pmem, /* the process's memory image */ 51 Pregs, /* the process's register set */ 52 Pfpregs, /* the process's FP register set */ 53 Pctl, /* process control */ 54 Pstatus, /* process status */ 55 Pnote, /* process notifier */ 56 Pnotepg /* process group notifier */ 57 } pfstype; 58 59 /* 60 * control data for the proc file system. 61 */ 62 struct pfsnode { 63 struct pfsnode *pfs_next; /* next on list */ 64 struct vnode *pfs_vnode; /* vnode associated with this pfsnode */ 65 pfstype pfs_type; /* type of procfs node */ 66 pid_t pfs_pid; /* associated process */ 67 u_short pfs_mode; /* mode bits for stat() */ 68 u_long pfs_flags; /* open flags */ 69 u_long pfs_fileno; /* unique file id */ 70 }; 71 72 #define PROCFS_NOTELEN 64 /* max length of a note (/proc/$pid/note) */ 73 #define PROCFS_CTLLEN 8 /* max length of a ctl msg (/proc/$pid/ctl */ 74 75 /* 76 * Kernel stuff follows 77 */ 78 #ifdef _KERNEL 79 #define CNEQ(cnp, s, len) \ 80 ((cnp)->cn_namelen == (len) && \ 81 (bcmp((s), (cnp)->cn_nameptr, (len)) == 0)) 82 83 /* 84 * Format of a directory entry in /proc, ... 85 * This must map onto struct dirent (see <dirent.h>) 86 */ 87 #define PROCFS_NAMELEN 8 88 struct pfsdent { 89 u_int32_t d_fileno; 90 u_int16_t d_reclen; 91 u_int8_t d_type; 92 u_int8_t d_namlen; 93 char d_name[PROCFS_NAMELEN]; 94 }; 95 #define UIO_MX sizeof(struct pfsdent) 96 #define PROCFS_FILENO(pid, type) \ 97 (((type) < Pproc) ? \ 98 ((type) + 2) : \ 99 ((((pid)+1) << 4) + ((int) (type)))) 100 101 /* 102 * Convert between pfsnode vnode 103 */ 104 #define VTOPFS(vp) ((struct pfsnode *)(vp)->v_data) 105 #define PFSTOV(pfs) ((pfs)->pfs_vnode) 106 107 typedef struct vfs_namemap vfs_namemap_t; 108 struct vfs_namemap { 109 const char *nm_name; 110 int nm_val; 111 }; 112 113 int vfs_getuserstr __P((struct uio *, char *, int *)); 114 vfs_namemap_t *vfs_findname __P((vfs_namemap_t *, char *, int)); 115 116 #define PFIND(pid) ((pid) ? pfind(pid) : &proc0) 117 int procfs_freevp __P((struct vnode *)); 118 int procfs_allocvp __P((struct mount *, struct vnode **, long, pfstype)); 119 struct vnode *procfs_findtextvp __P((struct proc *)); 120 int procfs_donote __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 121 int procfs_doregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 122 int procfs_dofpregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 123 int procfs_domem __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 124 int procfs_doctl __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 125 int procfs_dostatus __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 126 127 /* functions to check whether or not files should be displayed */ 128 int procfs_validfile __P((struct proc *)); 129 int procfs_validfpregs __P((struct proc *)); 130 int procfs_validregs __P((struct proc *)); 131 132 #define PROCFS_LOCKED 0x01 133 #define PROCFS_WANT 0x02 134 135 extern int (**procfs_vnodeop_p)(); 136 extern struct vfsops procfs_vfsops; 137 138 /* 139 * Prototypes for procfs vnode ops 140 */ 141 int procfs_badop(); /* varargs */ 142 int procfs_rw __P((struct vop_read_args *)); 143 int procfs_lookup __P((struct vop_lookup_args *)); 144 #define procfs_create ((int (*) __P((struct vop_create_args *))) procfs_badop) 145 #define procfs_mknod ((int (*) __P((struct vop_mknod_args *))) procfs_badop) 146 int procfs_open __P((struct vop_open_args *)); 147 int procfs_close __P((struct vop_close_args *)); 148 int procfs_access __P((struct vop_access_args *)); 149 int procfs_getattr __P((struct vop_getattr_args *)); 150 int procfs_setattr __P((struct vop_setattr_args *)); 151 #define procfs_read procfs_rw 152 #define procfs_write procfs_rw 153 int procfs_ioctl __P((struct vop_ioctl_args *)); 154 #define procfs_select ((int (*) __P((struct vop_select_args *))) procfs_badop) 155 #define procfs_mmap ((int (*) __P((struct vop_mmap_args *))) procfs_badop) 156 #define procfs_fsync ((int (*) __P((struct vop_fsync_args *))) procfs_badop) 157 #define procfs_seek ((int (*) __P((struct vop_seek_args *))) procfs_badop) 158 #define procfs_remove ((int (*) __P((struct vop_remove_args *))) procfs_badop) 159 #define procfs_link ((int (*) __P((struct vop_link_args *))) procfs_badop) 160 #define procfs_rename ((int (*) __P((struct vop_rename_args *))) procfs_badop) 161 #define procfs_mkdir ((int (*) __P((struct vop_mkdir_args *))) procfs_badop) 162 #define procfs_rmdir ((int (*) __P((struct vop_rmdir_args *))) procfs_badop) 163 #define procfs_symlink ((int (*) __P((struct vop_symlink_args *))) procfs_badop) 164 int procfs_readdir __P((struct vop_readdir_args *)); 165 int procfs_readlink __P((struct vop_readlink_args *)); 166 int procfs_abortop __P((struct vop_abortop_args *)); 167 int procfs_inactive __P((struct vop_inactive_args *)); 168 int procfs_reclaim __P((struct vop_reclaim_args *)); 169 #define procfs_lock ((int (*) __P((struct vop_lock_args *))) nullop) 170 #define procfs_unlock ((int (*) __P((struct vop_unlock_args *))) nullop) 171 int procfs_bmap __P((struct vop_bmap_args *)); 172 #define procfs_strategy ((int (*) __P((struct vop_strategy_args *))) procfs_badop) 173 int procfs_print __P((struct vop_print_args *)); 174 #define procfs_islocked ((int (*) __P((struct vop_islocked_args *))) nullop) 175 #define procfs_advlock ((int (*) __P((struct vop_advlock_args *))) procfs_badop) 176 #define procfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *))) procfs_badop) 177 #define procfs_valloc ((int (*) __P((struct vop_valloc_args *))) procfs_badop) 178 #define procfs_vfree ((int (*) __P((struct vop_vfree_args *))) nullop) 179 #define procfs_truncate ((int (*) __P((struct vop_truncate_args *))) procfs_badop) 180 #define procfs_update ((int (*) __P((struct vop_update_args *))) nullop) 181 #endif /* _KERNEL */ 182
Indexes created Thu Oct 02 14:10:14 GMT 2025