procfs.h revision 1.5
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 * 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: 38 * Id: procfs.h,v 4.1 1993/12/17 10:47:45 jsp Rel 39 * 40 * $Id: procfs.h,v 1.5 1994/01/20 21:23:04 ws Exp $ 41 */ 42 43 /* 44 * The different types of node in a procfs filesystem 45 */ 46 typedef enum { 47 Proot, /* the filesystem root */ 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 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 8 /* 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 79 #define NDEQ(ndp, s, len) \ 80 ((ndp)->ni_namelen == (len) && \ 81 (bcmp((s), (ndp)->ni_ptr, (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_long d_fileno; 90 u_short d_reclen; 91 u_short d_namlen; 92 char d_name[PROCFS_NAMELEN]; 93 }; 94 #define UIO_MX sizeof(struct pfsdent) 95 #define PROCFS_FILENO(pid, type) \ 96 (((type) == Proot) ? \ 97 ((pid) + 2) : \ 98 ((((pid)+1) << 3) + ((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 procfs_namemap procfs_namemap_t; 107 struct procfs_namemap { 108 const char *nm_name; 109 int nm_val; 110 }; 111 112 extern int procfs_getuserstr __P((struct uio *, char *, int *)); 113 extern procfs_namemap_t *procfs_findname __P((procfs_namemap_t *, char *, int)); 114 115 struct reg; 116 117 #define PFIND(pid) ((pid) ? pfind(pid) : &proc0) 118 extern int procfs_freevp __P((struct vnode *)); 119 extern int procfs_allocvp __P((struct mount *, struct vnode **, long, pfstype)); 120 extern struct vnode *procfs_findtextvp __P((struct proc *)); 121 extern int procfs_sstep __P((struct proc *)); 122 extern int procfs_read_regs __P((struct proc *, struct reg *)); 123 extern int procfs_write_regs __P((struct proc *, struct reg *)); 124 extern int procfs_donote __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 125 extern int procfs_doregs __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 126 extern int procfs_domem __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 127 extern int procfs_doctl __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 128 extern int procfs_dostatus __P((struct proc *, struct proc *, struct pfsnode *pfsp, struct uio *uio)); 129 extern int procfs_rw __P((struct vnode *, struct uio *, int, struct ucred *)); 130 131 #define PROCFS_LOCKED 0x01 132 #define PROCFS_WANT 0x02 133 134 extern struct vnodeops procfs_vnodeops; 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(( 142 struct vnode *vp, 143 struct uio *uio, 144 int ioflag, 145 struct ucred *cred)); 146 int procfs_lookup __P(( 147 struct vnode *vp, 148 struct nameidata *ndp, 149 struct proc *p)); 150 #define procfs_create ((int (*) __P(( \ 151 struct nameidata *ndp, \ 152 struct vattr *vap, \ 153 struct proc *p))) procfs_badop) 154 #define procfs_mknod ((int (*) __P(( \ 155 struct nameidata *ndp, \ 156 struct vattr *vap, \ 157 struct ucred *cred, \ 158 struct proc *p))) procfs_badop) 159 int procfs_open __P(( 160 struct vnode *vp, 161 int mode, 162 struct ucred *cred, 163 struct proc *p)); 164 int procfs_close __P(( 165 struct vnode *vp, 166 int fflag, 167 struct ucred *cred, 168 struct proc *p)); 169 int procfs_access __P(( 170 struct vnode *vp, 171 int mode, 172 struct ucred *cred, 173 struct proc *p)); 174 int procfs_getattr __P(( 175 struct vnode *vp, 176 struct vattr *vap, 177 struct ucred *cred, 178 struct proc *p)); 179 int procfs_setattr __P(( 180 struct vnode *vp, 181 struct vattr *vap, 182 struct ucred *cred, 183 struct proc *p)); 184 #define procfs_read procfs_rw 185 #define procfs_write procfs_rw 186 int procfs_ioctl __P(( 187 struct vnode *vp, 188 int command, 189 caddr_t data, 190 int fflag, 191 struct ucred *cred, 192 struct proc *p)); 193 #define procfs_select ((int (*) __P(( \ 194 struct vnode *vp, \ 195 int which, \ 196 int fflags, \ 197 struct ucred *cred, \ 198 struct proc *p))) procfs_badop) 199 #define procfs_mmap ((int (*) __P(( \ 200 struct vnode *vp, \ 201 int fflags, \ 202 struct ucred *cred, \ 203 struct proc *p))) procfs_badop) 204 #define procfs_fsync ((int (*) __P(( \ 205 struct vnode *vp, \ 206 int fflags, \ 207 struct ucred *cred, \ 208 int waitfor, \ 209 struct proc *p))) procfs_badop) 210 #define procfs_seek ((int (*) __P(( \ 211 struct vnode *vp, \ 212 off_t oldoff, \ 213 off_t newoff, \ 214 struct ucred *cred))) procfs_badop) 215 #define procfs_remove ((int (*) __P(( \ 216 struct nameidata *ndp, \ 217 struct proc *p))) procfs_badop) 218 #define procfs_link ((int (*) __P(( \ 219 struct vnode *vp, \ 220 struct nameidata *ndp, \ 221 struct proc *p))) procfs_badop) 222 #define procfs_rename ((int (*) __P(( \ 223 struct nameidata *fndp, \ 224 struct nameidata *tdnp, \ 225 struct proc *p))) procfs_badop) 226 #define procfs_mkdir ((int (*) __P(( \ 227 struct nameidata *ndp, \ 228 struct vattr *vap, \ 229 struct proc *p))) procfs_badop) 230 #define procfs_rmdir ((int (*) __P(( \ 231 struct nameidata *ndp, \ 232 struct proc *p))) procfs_badop) 233 #define procfs_symlink ((int (*) __P(( \ 234 struct nameidata *ndp, \ 235 struct vattr *vap, \ 236 char *target, \ 237 struct proc *p))) procfs_badop) 238 int procfs_readdir __P(( 239 struct vnode *vp, 240 struct uio *uio, 241 struct ucred *cred, 242 int *eofflagp, 243 u_int *cookies, 244 int ncookies)); 245 int procfs_readlink __P(( 246 struct vnode *vp, 247 struct uio *uio, 248 struct ucred *cred)); 249 int procfs_abortop __P(( 250 struct nameidata *ndp)); 251 int procfs_inactive __P(( 252 struct vnode *vp, 253 struct proc *p)); 254 int procfs_reclaim __P(( 255 struct vnode *vp)); 256 #define procfs_lock ((int (*) __P(( \ 257 struct vnode *vp))) nullop) 258 #define procfs_unlock ((int (*) __P(( \ 259 struct vnode *vp))) nullop) 260 int procfs_bmap __P(( 261 struct vnode *vp, 262 daddr_t bn, 263 struct vnode **vpp, 264 daddr_t *bnp)); 265 #define procfs_strategy ((int (*) __P(( \ 266 struct buf *bp))) procfs_badop) 267 int procfs_print __P(( 268 struct vnode *vp)); 269 #define procfs_islocked ((int (*) __P(( \ 270 struct vnode *vp))) nullop) 271 #define procfs_advlock ((int (*) __P(( \ 272 struct vnode *vp, \ 273 caddr_t id, \ 274 int op, \ 275 struct flock *fl, \ 276 int flags))) procfs_badop) 277 278 #endif /* KERNEL */ 279
Indexes created Thu Oct 02 14:10:14 GMT 2025