procfs.h revision 1.59.22.1
1 /* $NetBSD: procfs.h,v 1.59.22.1 2006/10/22 06:07:23 yamt Exp $ */ 2 3 /* 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Jan-Simon Pendry. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)procfs.h 8.9 (Berkeley) 5/14/95 35 */ 36 37 /* 38 * Copyright (c) 1993 Jan-Simon Pendry 39 * 40 * This code is derived from software contributed to Berkeley by 41 * Jan-Simon Pendry. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by the University of 54 * California, Berkeley and its contributors. 55 * 4. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * @(#)procfs.h 8.9 (Berkeley) 5/14/95 72 */ 73 74 /* This also pulls in __HAVE_PROCFS_MACHDEP */ 75 #include <sys/ptrace.h> 76 77 #ifdef _KERNEL 78 /* 79 * The different types of node in a procfs filesystem 80 */ 81 typedef enum { 82 PFSroot, /* the filesystem root */ 83 PFScurproc, /* symbolic link for curproc */ 84 PFSself, /* like curproc, but this is the Linux name */ 85 PFSproc, /* a process-specific sub-directory */ 86 PFSfile, /* the executable file */ 87 PFSmem, /* the process's memory image */ 88 PFSregs, /* the process's register set */ 89 PFSfpregs, /* the process's FP register set */ 90 PFSctl, /* process control */ 91 PFSstat, /* process status (if -o linux) */ 92 PFSstatus, /* process status */ 93 PFSnote, /* process notifier */ 94 PFSnotepg, /* process group notifier */ 95 PFSmap, /* memory map */ 96 PFScmdline, /* process command line args */ 97 PFSmeminfo, /* system memory info (if -o linux) */ 98 PFScpuinfo, /* CPU info (if -o linux) */ 99 PFSmaps, /* memory map, Linux style (if -o linux) */ 100 PFSfd, /* a directory containing the processes open fd's */ 101 PFSuptime, /* elapsed time since (if -o linux) */ 102 PFSmounts, /* mounted filesystems (if -o linux) */ 103 PFScwd, /* the process's current working directory */ 104 PFSchroot, /* the process's current root directory */ 105 PFSdevices, /* major/device name mappings (if -o linux) */ 106 #ifdef __HAVE_PROCFS_MACHDEP 107 PROCFS_MACHDEP_NODE_TYPES 108 #endif 109 } pfstype; 110 111 /* 112 * control data for the proc file system. 113 */ 114 struct pfsnode { 115 LIST_ENTRY(pfsnode) pfs_hash; /* hash chain */ 116 struct vnode *pfs_vnode; /* vnode associated with this pfsnode */ 117 pfstype pfs_type; /* type of procfs node */ 118 pid_t pfs_pid; /* associated process */ 119 int pfs_fd; /* associated fd if not -1 */ 120 mode_t pfs_mode; /* mode bits for stat() */ 121 u_long pfs_flags; /* open flags */ 122 u_long pfs_fileno; /* unique file id */ 123 }; 124 125 #define PROCFS_NOTELEN 64 /* max length of a note (/proc/$pid/note) */ 126 #define PROCFS_CTLLEN 8 /* max length of a ctl msg (/proc/$pid/ctl */ 127 128 #endif /* _KERNEL */ 129 130 struct procfs_args { 131 int version; 132 int flags; 133 }; 134 135 #define PROCFS_ARGSVERSION 1 136 137 #define PROCFSMNT_LINUXCOMPAT 0x01 138 139 #define PROCFSMNT_BITS "\177\20" \ 140 "b\00linuxcompat\0" 141 142 /* 143 * Kernel stuff follows 144 */ 145 #ifdef _KERNEL 146 #define CNEQ(cnp, s, len) \ 147 ((cnp)->cn_namelen == (len) && \ 148 (memcmp((s), (cnp)->cn_nameptr, (len)) == 0)) 149 150 #define UIO_MX 32 151 152 #define PROCFS_FILENO(pid, type, fd) \ 153 (((type) < PFSproc) ? ((type) + 2) : \ 154 (((fd) == -1) ? ((((pid)+1) << 5) + ((int) (type))) : \ 155 ((((pid)+1) << 16) | ((fd) << 5) | ((int) (type))))) 156 157 struct procfsmount { 158 void *pmnt_exechook; 159 int pmnt_flags; 160 }; 161 162 #define VFSTOPROC(mp) ((struct procfsmount *)(mp)->mnt_data) 163 164 /* 165 * Convert between pfsnode vnode 166 */ 167 #define VTOPFS(vp) ((struct pfsnode *)(vp)->v_data) 168 #define PFSTOV(pfs) ((pfs)->pfs_vnode) 169 170 typedef struct vfs_namemap vfs_namemap_t; 171 struct vfs_namemap { 172 const char *nm_name; 173 int nm_val; 174 }; 175 176 int vfs_getuserstr(struct uio *, char *, int *); 177 const vfs_namemap_t *vfs_findname(const vfs_namemap_t *, const char *, int); 178 179 #define PFIND(pid) ((pid) ? pfind(pid) : &proc0) 180 int procfs_freevp(struct vnode *); 181 int procfs_allocvp(struct mount *, struct vnode **, pid_t, pfstype, int); 182 int procfs_donote(struct lwp *, struct proc *, struct pfsnode *, 183 struct uio *); 184 int procfs_doregs(struct lwp *, struct lwp *, struct pfsnode *, 185 struct uio *); 186 int procfs_dofpregs(struct lwp *, struct lwp *, struct pfsnode *, 187 struct uio *); 188 int procfs_domem(struct lwp *, struct lwp *, struct pfsnode *, 189 struct uio *); 190 int procfs_doctl(struct lwp *, struct lwp *, struct pfsnode *, 191 struct uio *); 192 int procfs_do_pid_stat(struct lwp *, struct lwp *, struct pfsnode *, 193 struct uio *); 194 int procfs_dostatus(struct lwp *, struct lwp *, struct pfsnode *, 195 struct uio *); 196 int procfs_domap(struct lwp *, struct proc *, struct pfsnode *, 197 struct uio *, int); 198 int procfs_docmdline(struct lwp *, struct proc *, struct pfsnode *, 199 struct uio *); 200 int procfs_domeminfo(struct lwp *, struct proc *, struct pfsnode *, 201 struct uio *); 202 int procfs_dodevices(struct lwp *, struct proc *, struct pfsnode *, 203 struct uio *); 204 int procfs_docpuinfo(struct lwp *, struct proc *, struct pfsnode *, 205 struct uio *); 206 int procfs_dofd(struct lwp *, struct proc *, struct pfsnode *, 207 struct uio *); 208 int procfs_douptime(struct lwp *, struct proc *, struct pfsnode *, 209 struct uio *); 210 int procfs_domounts(struct lwp *, struct proc *, struct pfsnode *, 211 struct uio *); 212 213 void procfs_revoke_vnodes(struct proc *, void *); 214 void procfs_hashinit(void); 215 void procfs_hashreinit(void); 216 void procfs_hashdone(void); 217 int procfs_getfp(struct pfsnode *, struct proc **, struct file **); 218 219 /* functions to check whether or not files should be displayed */ 220 int procfs_validfile(struct lwp *, struct mount *); 221 int procfs_validfpregs(struct lwp *, struct mount *); 222 int procfs_validregs(struct lwp *, struct mount *); 223 int procfs_validmap(struct lwp *, struct mount *); 224 225 int procfs_rw(void *); 226 227 int procfs_getcpuinfstr(char *, int *); 228 229 #define PROCFS_LOCKED 0x01 230 #define PROCFS_WANT 0x02 231 232 extern int (**procfs_vnodeop_p)(void *); 233 extern struct vfsops procfs_vfsops; 234 235 int procfs_root(struct mount *, struct vnode **); 236 237 #ifdef __HAVE_PROCFS_MACHDEP 238 struct vattr; 239 240 void procfs_machdep_allocvp(struct vnode *); 241 int procfs_machdep_rw(struct lwp *, struct lwp *, struct pfsnode *, 242 struct uio *); 243 int procfs_machdep_getattr(struct vnode *, struct vattr *, struct proc *); 244 #endif 245 246 #ifdef SYSCTL_SETUP_PROTO 247 SYSCTL_SETUP_PROTO(sysctl_vfs_procfs_setup); 248 #endif /* SYSCTL_SETUP_PROTO */ 249 #endif /* _KERNEL */ 250
Indexes created Thu Oct 02 14:10:14 GMT 2025