845beacce3
filesystems; Linux glibc statvfs() uses this to get some of mount flags, and this file is also useful as /emul/linux/etc/mtab (via symlink)
245 lines
9.0 KiB
C
245 lines
9.0 KiB
C
/* $NetBSD: procfs.h,v 1.56 2004/09/20 17:53:08 jdolecek Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Jan-Simon Pendry.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)procfs.h 8.9 (Berkeley) 5/14/95
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1993 Jan-Simon Pendry
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Jan-Simon Pendry.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)procfs.h 8.9 (Berkeley) 5/14/95
|
|
*/
|
|
|
|
/* This also pulls in __HAVE_PROCFS_MACHDEP */
|
|
#include <sys/ptrace.h>
|
|
|
|
#ifdef _KERNEL
|
|
/*
|
|
* The different types of node in a procfs filesystem
|
|
*/
|
|
typedef enum {
|
|
PFSroot, /* the filesystem root */
|
|
PFScurproc, /* symbolic link for curproc */
|
|
PFSself, /* like curproc, but this is the Linux name */
|
|
PFSproc, /* a process-specific sub-directory */
|
|
PFSfile, /* the executable file */
|
|
PFSmem, /* the process's memory image */
|
|
PFSregs, /* the process's register set */
|
|
PFSfpregs, /* the process's FP register set */
|
|
PFSctl, /* process control */
|
|
PFSstat, /* process status (if -o linux) */
|
|
PFSstatus, /* process status */
|
|
PFSnote, /* process notifier */
|
|
PFSnotepg, /* process group notifier */
|
|
PFSmap, /* memory map */
|
|
PFScmdline, /* process command line args */
|
|
PFSmeminfo, /* system memory info (if -o linux) */
|
|
PFScpuinfo, /* CPU info (if -o linux) */
|
|
PFSmaps, /* memory map, Linux style (if -o linux) */
|
|
PFSfd, /* a directory containing the processes open fd's */
|
|
PFSuptime, /* elapsed time since (if -o linux) */
|
|
PFSmounts, /* mounted filesystems (if -o linux) */
|
|
#ifdef __HAVE_PROCFS_MACHDEP
|
|
PROCFS_MACHDEP_NODE_TYPES
|
|
#endif
|
|
} pfstype;
|
|
|
|
/*
|
|
* control data for the proc file system.
|
|
*/
|
|
struct pfsnode {
|
|
LIST_ENTRY(pfsnode) pfs_hash; /* hash chain */
|
|
struct vnode *pfs_vnode; /* vnode associated with this pfsnode */
|
|
pfstype pfs_type; /* type of procfs node */
|
|
pid_t pfs_pid; /* associated process */
|
|
int pfs_fd; /* associated fd if not -1 */
|
|
mode_t pfs_mode; /* mode bits for stat() */
|
|
u_long pfs_flags; /* open flags */
|
|
u_long pfs_fileno; /* unique file id */
|
|
};
|
|
|
|
#define PROCFS_NOTELEN 64 /* max length of a note (/proc/$pid/note) */
|
|
#define PROCFS_CTLLEN 8 /* max length of a ctl msg (/proc/$pid/ctl */
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
struct procfs_args {
|
|
int version;
|
|
int flags;
|
|
};
|
|
|
|
#define PROCFS_ARGSVERSION 1
|
|
|
|
#define PROCFSMNT_LINUXCOMPAT 0x01
|
|
|
|
#define PROCFSMNT_BITS "\177\20" \
|
|
"b\00linuxcompat\0"
|
|
|
|
/*
|
|
* Kernel stuff follows
|
|
*/
|
|
#ifdef _KERNEL
|
|
#define CNEQ(cnp, s, len) \
|
|
((cnp)->cn_namelen == (len) && \
|
|
(memcmp((s), (cnp)->cn_nameptr, (len)) == 0))
|
|
|
|
#define UIO_MX 32
|
|
|
|
#define PROCFS_FILENO(pid, type, fd) \
|
|
(((type) < PFSproc) ? ((type) + 2) : \
|
|
(((fd) == -1) ? ((((pid)+1) << 5) + ((int) (type))) : \
|
|
((((pid)+1) << 16) | ((fd) << 5) | ((int) (type)))))
|
|
|
|
struct procfsmount {
|
|
void *pmnt_exechook;
|
|
int pmnt_flags;
|
|
};
|
|
|
|
#define VFSTOPROC(mp) ((struct procfsmount *)(mp)->mnt_data)
|
|
|
|
/*
|
|
* Convert between pfsnode vnode
|
|
*/
|
|
#define VTOPFS(vp) ((struct pfsnode *)(vp)->v_data)
|
|
#define PFSTOV(pfs) ((pfs)->pfs_vnode)
|
|
|
|
typedef struct vfs_namemap vfs_namemap_t;
|
|
struct vfs_namemap {
|
|
const char *nm_name;
|
|
int nm_val;
|
|
};
|
|
|
|
int vfs_getuserstr __P((struct uio *, char *, int *));
|
|
const vfs_namemap_t *vfs_findname __P((const vfs_namemap_t *, const char *, int));
|
|
|
|
#define PFIND(pid) ((pid) ? pfind(pid) : &proc0)
|
|
int procfs_freevp __P((struct vnode *));
|
|
int procfs_allocvp __P((struct mount *, struct vnode **, pid_t, pfstype, int));
|
|
int procfs_donote __P((struct proc *, struct proc *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_doregs __P((struct proc *, struct lwp *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_dofpregs __P((struct proc *, struct lwp *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_domem __P((struct proc *, struct proc *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_doctl __P((struct proc *, struct lwp *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_do_pid_stat __P((struct proc *, struct lwp *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_dostatus __P((struct proc *, struct lwp *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_domap __P((struct proc *, struct proc *, struct pfsnode *,
|
|
struct uio *, int));
|
|
int procfs_docmdline __P((struct proc *, struct proc *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_domeminfo __P((struct proc *, struct proc *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_docpuinfo __P((struct proc *, struct proc *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_dofd __P((struct proc *, struct proc *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_douptime __P((struct proc *, struct proc *, struct pfsnode *,
|
|
struct uio *));
|
|
int procfs_domounts __P((struct proc *, struct proc *, struct pfsnode *,
|
|
struct uio *));
|
|
|
|
void procfs_revoke_vnodes __P((struct proc *, void *));
|
|
void procfs_hashinit __P((void));
|
|
void procfs_hashreinit __P((void));
|
|
void procfs_hashdone __P((void));
|
|
int procfs_getfp __P((struct pfsnode *, struct proc **, struct file **));
|
|
|
|
/* functions to check whether or not files should be displayed */
|
|
int procfs_validfile __P((struct proc *, struct mount *));
|
|
int procfs_validfpregs __P((struct proc *, struct mount *));
|
|
int procfs_validregs __P((struct proc *, struct mount *));
|
|
int procfs_validmap __P((struct proc *, struct mount *));
|
|
|
|
int procfs_rw __P((void *));
|
|
|
|
int procfs_getcpuinfstr __P((char *, int *));
|
|
|
|
#define PROCFS_LOCKED 0x01
|
|
#define PROCFS_WANT 0x02
|
|
|
|
extern int (**procfs_vnodeop_p) __P((void *));
|
|
extern struct vfsops procfs_vfsops;
|
|
|
|
int procfs_root __P((struct mount *, struct vnode **));
|
|
|
|
#ifdef __HAVE_PROCFS_MACHDEP
|
|
struct vattr;
|
|
|
|
void procfs_machdep_allocvp(struct vnode *);
|
|
int procfs_machdep_rw(struct proc *, struct lwp *, struct pfsnode *,
|
|
struct uio *);
|
|
int procfs_machdep_getattr(struct vnode *, struct vattr *, struct proc *);
|
|
#endif
|
|
|
|
#ifdef SYSCTL_SETUP_PROTO
|
|
SYSCTL_SETUP_PROTO(sysctl_vfs_procfs_setup);
|
|
#endif /* SYSCTL_SETUP_PROTO */
|
|
#endif /* _KERNEL */
|