procfs.h revision 1.10
1 /* 2 * Copyright (c) 1993 Jan-Simon Pendry 3 * Copyright (c) 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Jan-Simon Pendry. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * from: @(#)procfs.h 8.7 (Berkeley) 6/15/94 38 * $Id: procfs.h,v 1.10 1994/06/15 22:59:02 mycroft Exp $ 39 */ 40 41 /* 42 * The different types of node in a procfs filesystem 43 */ 44 typedef enum { 45 Proot, /* the filesystem root */ 46 Pcurproc, /* symbolic link for curproc */ 47 Pproc, /* a process-specific sub-directory */ 48 Pfile, /* the executable file */ 49 Pmem, /* the process's memory image */ 50 Pregs, /* the process's register set */ 51 Pfpregs, /* the process's FP register set */ 52 Pctl, /* process control */ 53 Pstatus, /* process status */ 54 Pnote, /* process notifier */ 55 Pnotepg /* process group notifier */ 56 } pfstype; 57 58 /* 59 * control data for the proc file system. 60 */ 61 struct pfsnode { 62 struct pfsnode *pfs_next; /* next on list */ 63 struct vnode *pfs_vnode; /* vnode associated with this pfsnode */ 64 pfstype pfs_type; /* type of procfs node */ 65 pid_t pfs_pid; /* associated process */ 66 u_short pfs_mode; /* mode bits for stat() */ 67 u_long pfs_flags; /* open flags */ 68 u_long pfs_fileno; /* unique file id */ 69 }; 70 71 #define PROCFS_NOTELEN 64 /* max length of a note (/proc/$pid/note) */ 72 #define PROCFS_CTLLEN 8 /* max length of a ctl msg (/proc/$pid/ctl */ 73 74 /* 75 * Kernel stuff follows 76 */ 77 #ifdef KERNEL 78 #define CNEQ(cnp, s, len) \ 79 ((cnp)->cn_namelen == (len) && \ 80 (bcmp((s), (cnp)->cn_nameptr, (len)) == 0)) 81 82 /* 83 * Format of a directory entry in /proc, ... 84 * This must map onto struct dirent (see <dirent.h>) 85 */ 86 #define PROCFS_NAMELEN 8 87 struct pfsdent { 88 u_long d_fileno; 89 u_short d_reclen; 90 u_char d_type; 91 u_char d_namlen; 92 char d_name[PROCFS_NAMELEN]; 93 }; 94 #define UIO_MX sizeof(struct pfsdent) 95 #define PROCFS_FILENO(pid, type) \ 96 (((type) < Pproc) ? \ 97 ((type) + 2) : \ 98 ((((pid)+1) << 4) + ((int) (type)))) 99 100 /* 101 * Convert between pfsnode vnode 102 */ 103 #define VTOPFS(vp) ((struct pfsnode *)(vp)->v_data) 104 #define PFSTOV(pfs) ((pfs)->pfs_vnode) 105 106 typedef struct vfs_namemap vfs_namemap_t; 107 struct vfs_namemap { 108 const char *nm_name; 109 int nm_val; 110 }; 111 112 int vfs_getuserstr __P((struct uio *, char *, int *)); 113 vfs_namemap_t *vfs_findname __P((vfs_namemap_t *, char *, int)); 114 115 #define PFIND(pid) ((pid) ? pfind(pid) : &proc0) 116 int procfs_freevp __P((struct vnode *)); 117 int procfs_allocvp __P((struct mount *, struct vnode **, long, pfstype)); 118 struct vnode *procfs_findtextvp __P((struct proc *)); 119 int procfs_donote __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 120 int procfs_doregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 121 int procfs_dofpregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 122 int procfs_domem __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 123 int procfs_doctl __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 124 int procfs_dostatus __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 125 126 /* functions to check whether or not files should be displayed */ 127 int procfs_validfile __P((struct proc *)); 128 int procfs_validfpregs __P((struct proc *)); 129 int procfs_validregs __P((struct proc *)); 130 131 #define PROCFS_LOCKED 0x01 132 #define PROCFS_WANT 0x02 133 134 extern int (**procfs_vnodeop_p)(); 135 extern struct vfsops procfs_vfsops; 136 137 /* 138 * Prototypes for procfs vnode ops 139 */ 140 int procfs_badop(); /* varargs */ 141 int procfs_rw __P((struct vop_read_args *)); 142 int procfs_lookup __P((struct vop_lookup_args *)); 143 #define procfs_create ((int (*) __P((struct vop_create_args *))) procfs_badop) 144 #define procfs_mknod ((int (*) __P((struct vop_mknod_args *))) procfs_badop) 145 int procfs_open __P((struct vop_open_args *)); 146 int procfs_close __P((struct vop_close_args *)); 147 int procfs_access __P((struct vop_access_args *)); 148 int procfs_getattr __P((struct vop_getattr_args *)); 149 int procfs_setattr __P((struct vop_setattr_args *)); 150 #define procfs_read procfs_rw 151 #define procfs_write procfs_rw 152 int procfs_ioctl __P((struct vop_ioctl_args *)); 153 #define procfs_select ((int (*) __P((struct vop_select_args *))) procfs_badop) 154 #define procfs_mmap ((int (*) __P((struct vop_mmap_args *))) procfs_badop) 155 #define procfs_fsync ((int (*) __P((struct vop_fsync_args *))) procfs_badop) 156 #define procfs_seek ((int (*) __P((struct vop_seek_args *))) procfs_badop) 157 #define procfs_remove ((int (*) __P((struct vop_remove_args *))) procfs_badop) 158 #define procfs_link ((int (*) __P((struct vop_link_args *))) procfs_badop) 159 #define procfs_rename ((int (*) __P((struct vop_rename_args *))) procfs_badop) 160 #define procfs_mkdir ((int (*) __P((struct vop_mkdir_args *))) procfs_badop) 161 #define procfs_rmdir ((int (*) __P((struct vop_rmdir_args *))) procfs_badop) 162 #define procfs_symlink ((int (*) __P((struct vop_symlink_args *))) procfs_badop) 163 int procfs_readdir __P((struct vop_readdir_args *)); 164 int procfs_readlink __P((struct vop_readlink_args *)); 165 int procfs_abortop __P((struct vop_abortop_args *)); 166 int procfs_inactive __P((struct vop_inactive_args *)); 167 int procfs_reclaim __P((struct vop_reclaim_args *)); 168 #define procfs_lock ((int (*) __P((struct vop_lock_args *))) nullop) 169 #define procfs_unlock ((int (*) __P((struct vop_unlock_args *))) nullop) 170 int procfs_bmap __P((struct vop_bmap_args *)); 171 #define procfs_strategy ((int (*) __P((struct vop_strategy_args *))) procfs_badop) 172 int procfs_print __P((struct vop_print_args *)); 173 #define procfs_islocked ((int (*) __P((struct vop_islocked_args *))) nullop) 174 #define procfs_advlock ((int (*) __P((struct vop_advlock_args *))) procfs_badop) 175 #define procfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *))) procfs_badop) 176 #define procfs_valloc ((int (*) __P((struct vop_valloc_args *))) procfs_badop) 177 #define procfs_vfree ((int (*) __P((struct vop_vfree_args *))) nullop) 178 #define procfs_truncate ((int (*) __P((struct vop_truncate_args *))) procfs_badop) 179 #define procfs_update ((int (*) __P((struct vop_update_args *))) nullop) 180 #endif /* KERNEL */ 181
Indexes created Thu Oct 02 14:10:14 GMT 2025