2011-05-12 10:11:39 +00:00
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/*-
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2017-11-26 02:00:33 +00:00
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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2011-05-12 10:11:39 +00:00
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* Copyright (c) 2009 Stanislav Sedov <stas@FreeBSD.org>
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2017-03-30 18:21:36 +00:00
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* Copyright (c) 2017 Dell EMC
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2011-05-12 10:11:39 +00:00
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LIBPROCSTAT_H_
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#define _LIBPROCSTAT_H_
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2013-04-20 08:10:47 +00:00
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/*
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* XXX: sys/elf.h conflicts with zfs_context.h. Workaround this by not
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* including conflicting parts when building zfs code.
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*/
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#ifndef ZFS
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#include <sys/elf.h>
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#endif
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Change the cap_rights_t type from uint64_t to a structure that we can extend
in the future in a backward compatible (API and ABI) way.
The cap_rights_t represents capability rights. We used to use one bit to
represent one right, but we are running out of spare bits. Currently the new
structure provides place for 114 rights (so 50 more than the previous
cap_rights_t), but it is possible to grow the structure to hold at least 285
rights, although we can make it even larger if 285 rights won't be enough.
The structure definition looks like this:
struct cap_rights {
uint64_t cr_rights[CAP_RIGHTS_VERSION + 2];
};
The initial CAP_RIGHTS_VERSION is 0.
The top two bits in the first element of the cr_rights[] array contain total
number of elements in the array - 2. This means if those two bits are equal to
0, we have 2 array elements.
The top two bits in all remaining array elements should be 0.
The next five bits in all array elements contain array index. Only one bit is
used and bit position in this five-bits range defines array index. This means
there can be at most five array elements in the future.
To define new right the CAPRIGHT() macro must be used. The macro takes two
arguments - an array index and a bit to set, eg.
#define CAP_PDKILL CAPRIGHT(1, 0x0000000000000800ULL)
We still support aliases that combine few rights, but the rights have to belong
to the same array element, eg:
#define CAP_LOOKUP CAPRIGHT(0, 0x0000000000000400ULL)
#define CAP_FCHMOD CAPRIGHT(0, 0x0000000000002000ULL)
#define CAP_FCHMODAT (CAP_FCHMOD | CAP_LOOKUP)
There is new API to manage the new cap_rights_t structure:
cap_rights_t *cap_rights_init(cap_rights_t *rights, ...);
void cap_rights_set(cap_rights_t *rights, ...);
void cap_rights_clear(cap_rights_t *rights, ...);
bool cap_rights_is_set(const cap_rights_t *rights, ...);
bool cap_rights_is_valid(const cap_rights_t *rights);
void cap_rights_merge(cap_rights_t *dst, const cap_rights_t *src);
void cap_rights_remove(cap_rights_t *dst, const cap_rights_t *src);
bool cap_rights_contains(const cap_rights_t *big, const cap_rights_t *little);
Capability rights to the cap_rights_init(), cap_rights_set(),
cap_rights_clear() and cap_rights_is_set() functions are provided by
separating them with commas, eg:
cap_rights_t rights;
cap_rights_init(&rights, CAP_READ, CAP_WRITE, CAP_FSTAT);
There is no need to terminate the list of rights, as those functions are
actually macros that take care of the termination, eg:
#define cap_rights_set(rights, ...) \
__cap_rights_set((rights), __VA_ARGS__, 0ULL)
void __cap_rights_set(cap_rights_t *rights, ...);
Thanks to using one bit as an array index we can assert in those functions that
there are no two rights belonging to different array elements provided
together. For example this is illegal and will be detected, because CAP_LOOKUP
belongs to element 0 and CAP_PDKILL to element 1:
cap_rights_init(&rights, CAP_LOOKUP | CAP_PDKILL);
Providing several rights that belongs to the same array's element this way is
correct, but is not advised. It should only be used for aliases definition.
This commit also breaks compatibility with some existing Capsicum system calls,
but I see no other way to do that. This should be fine as Capsicum is still
experimental and this change is not going to 9.x.
Sponsored by: The FreeBSD Foundation
2013-09-05 00:09:56 +00:00
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#include <sys/caprights.h>
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2013-04-20 08:10:47 +00:00
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2011-05-12 10:11:39 +00:00
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/*
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* Vnode types.
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*/
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#define PS_FST_VTYPE_VNON 1
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#define PS_FST_VTYPE_VREG 2
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#define PS_FST_VTYPE_VDIR 3
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#define PS_FST_VTYPE_VBLK 4
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#define PS_FST_VTYPE_VCHR 5
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#define PS_FST_VTYPE_VLNK 6
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#define PS_FST_VTYPE_VSOCK 7
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#define PS_FST_VTYPE_VFIFO 8
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#define PS_FST_VTYPE_VBAD 9
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#define PS_FST_VTYPE_UNKNOWN 255
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/*
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* Descriptor types.
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*/
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#define PS_FST_TYPE_VNODE 1
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#define PS_FST_TYPE_FIFO 2
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#define PS_FST_TYPE_SOCKET 3
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#define PS_FST_TYPE_PIPE 4
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#define PS_FST_TYPE_PTS 5
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#define PS_FST_TYPE_KQUEUE 6
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2020-11-25 00:10:54 +00:00
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/* was PS_FST_TYPE_CRYPTO 7 */
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2011-05-12 10:11:39 +00:00
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#define PS_FST_TYPE_MQUEUE 8
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#define PS_FST_TYPE_SHM 9
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#define PS_FST_TYPE_SEM 10
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#define PS_FST_TYPE_UNKNOWN 11
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#define PS_FST_TYPE_NONE 12
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2017-10-03 11:45:24 +00:00
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#define PS_FST_TYPE_PROCDESC 13
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2018-12-03 23:42:04 +00:00
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#define PS_FST_TYPE_DEV 14
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2020-12-23 14:17:44 +00:00
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#define PS_FST_TYPE_EVENTFD 15
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2011-05-12 10:11:39 +00:00
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/*
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* Special descriptor numbers.
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*/
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#define PS_FST_UFLAG_RDIR 0x0001
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#define PS_FST_UFLAG_CDIR 0x0002
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#define PS_FST_UFLAG_JAIL 0x0004
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#define PS_FST_UFLAG_TRACE 0x0008
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#define PS_FST_UFLAG_TEXT 0x0010
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#define PS_FST_UFLAG_MMAP 0x0020
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#define PS_FST_UFLAG_CTTY 0x0040
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/*
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* Descriptor flags.
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*/
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#define PS_FST_FFLAG_READ 0x0001
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#define PS_FST_FFLAG_WRITE 0x0002
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#define PS_FST_FFLAG_NONBLOCK 0x0004
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#define PS_FST_FFLAG_APPEND 0x0008
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#define PS_FST_FFLAG_SHLOCK 0x0010
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#define PS_FST_FFLAG_EXLOCK 0x0020
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#define PS_FST_FFLAG_ASYNC 0x0040
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#define PS_FST_FFLAG_SYNC 0x0080
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#define PS_FST_FFLAG_NOFOLLOW 0x0100
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#define PS_FST_FFLAG_CREAT 0x0200
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#define PS_FST_FFLAG_TRUNC 0x0400
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#define PS_FST_FFLAG_EXCL 0x0800
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#define PS_FST_FFLAG_DIRECT 0x1000
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#define PS_FST_FFLAG_EXEC 0x2000
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#define PS_FST_FFLAG_HASLOCK 0x4000
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2013-04-20 08:17:20 +00:00
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struct kinfo_kstack;
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2013-04-20 07:49:35 +00:00
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struct kinfo_vmentry;
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2011-05-12 10:11:39 +00:00
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struct procstat;
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2017-03-30 18:21:36 +00:00
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struct ptrace_lwpinfo;
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2013-04-20 07:59:44 +00:00
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struct rlimit;
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2011-05-12 10:11:39 +00:00
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struct filestat {
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int fs_type; /* Descriptor type. */
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int fs_flags; /* filestat specific flags. */
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int fs_fflags; /* Descriptor access flags. */
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int fs_uflags; /* How this file is used. */
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int fs_fd; /* File descriptor number. */
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int fs_ref_count; /* Reference count. */
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off_t fs_offset; /* Seek location. */
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void *fs_typedep; /* Type dependent data. */
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char *fs_path;
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STAILQ_ENTRY(filestat) next;
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2011-08-14 00:42:09 +00:00
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cap_rights_t fs_cap_rights; /* Capability rights, if flag set. */
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2011-05-12 10:11:39 +00:00
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};
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struct vnstat {
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uint64_t vn_fileid;
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uint64_t vn_size;
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Commit the 64-bit inode project.
Extend the ino_t, dev_t, nlink_t types to 64-bit ints. Modify
struct dirent layout to add d_off, increase the size of d_fileno
to 64-bits, increase the size of d_namlen to 16-bits, and change
the required alignment. Increase struct statfs f_mntfromname[] and
f_mntonname[] array length MNAMELEN to 1024.
ABI breakage is mitigated by providing compatibility using versioned
symbols, ingenious use of the existing padding in structures, and
by employing other tricks. Unfortunately, not everything can be
fixed, especially outside the base system. For instance, third-party
APIs which pass struct stat around are broken in backward and
forward incompatible ways.
Kinfo sysctl MIBs ABI is changed in backward-compatible way, but
there is no general mechanism to handle other sysctl MIBS which
return structures where the layout has changed. It was considered
that the breakage is either in the management interfaces, where we
usually allow ABI slip, or is not important.
Struct xvnode changed layout, no compat shims are provided.
For struct xtty, dev_t tty device member was reduced to uint32_t.
It was decided that keeping ABI compat in this case is more useful
than reporting 64-bit dev_t, for the sake of pstat.
Update note: strictly follow the instructions in UPDATING. Build
and install the new kernel with COMPAT_FREEBSD11 option enabled,
then reboot, and only then install new world.
Credits: The 64-bit inode project, also known as ino64, started life
many years ago as a project by Gleb Kurtsou (gleb). Kirk McKusick
(mckusick) then picked up and updated the patch, and acted as a
flag-waver. Feedback, suggestions, and discussions were carried
by Ed Maste (emaste), John Baldwin (jhb), Jilles Tjoelker (jilles),
and Rick Macklem (rmacklem). Kris Moore (kris) performed an initial
ports investigation followed by an exp-run by Antoine Brodin (antoine).
Essential and all-embracing testing was done by Peter Holm (pho).
The heavy lifting of coordinating all these efforts and bringing the
project to completion were done by Konstantin Belousov (kib).
Sponsored by: The FreeBSD Foundation (emaste, kib)
Differential revision: https://reviews.freebsd.org/D10439
2017-05-23 09:29:05 +00:00
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uint64_t vn_dev;
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uint64_t vn_fsid;
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2011-05-12 10:11:39 +00:00
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char *vn_mntdir;
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int vn_type;
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uint16_t vn_mode;
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char vn_devname[SPECNAMELEN + 1];
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};
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struct ptsstat {
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Commit the 64-bit inode project.
Extend the ino_t, dev_t, nlink_t types to 64-bit ints. Modify
struct dirent layout to add d_off, increase the size of d_fileno
to 64-bits, increase the size of d_namlen to 16-bits, and change
the required alignment. Increase struct statfs f_mntfromname[] and
f_mntonname[] array length MNAMELEN to 1024.
ABI breakage is mitigated by providing compatibility using versioned
symbols, ingenious use of the existing padding in structures, and
by employing other tricks. Unfortunately, not everything can be
fixed, especially outside the base system. For instance, third-party
APIs which pass struct stat around are broken in backward and
forward incompatible ways.
Kinfo sysctl MIBs ABI is changed in backward-compatible way, but
there is no general mechanism to handle other sysctl MIBS which
return structures where the layout has changed. It was considered
that the breakage is either in the management interfaces, where we
usually allow ABI slip, or is not important.
Struct xvnode changed layout, no compat shims are provided.
For struct xtty, dev_t tty device member was reduced to uint32_t.
It was decided that keeping ABI compat in this case is more useful
than reporting 64-bit dev_t, for the sake of pstat.
Update note: strictly follow the instructions in UPDATING. Build
and install the new kernel with COMPAT_FREEBSD11 option enabled,
then reboot, and only then install new world.
Credits: The 64-bit inode project, also known as ino64, started life
many years ago as a project by Gleb Kurtsou (gleb). Kirk McKusick
(mckusick) then picked up and updated the patch, and acted as a
flag-waver. Feedback, suggestions, and discussions were carried
by Ed Maste (emaste), John Baldwin (jhb), Jilles Tjoelker (jilles),
and Rick Macklem (rmacklem). Kris Moore (kris) performed an initial
ports investigation followed by an exp-run by Antoine Brodin (antoine).
Essential and all-embracing testing was done by Peter Holm (pho).
The heavy lifting of coordinating all these efforts and bringing the
project to completion were done by Konstantin Belousov (kib).
Sponsored by: The FreeBSD Foundation (emaste, kib)
Differential revision: https://reviews.freebsd.org/D10439
2017-05-23 09:29:05 +00:00
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uint64_t dev;
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2011-05-12 10:11:39 +00:00
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char devname[SPECNAMELEN + 1];
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};
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struct pipestat {
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size_t buffer_cnt;
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uint64_t addr;
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uint64_t peer;
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};
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2013-05-03 21:11:57 +00:00
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struct semstat {
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uint32_t value;
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uint16_t mode;
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};
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2012-04-01 18:22:48 +00:00
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struct shmstat {
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uint64_t size;
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uint16_t mode;
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};
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2011-05-12 10:11:39 +00:00
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struct sockstat {
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uint64_t inp_ppcb;
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uint64_t so_addr;
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uint64_t so_pcb;
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uint64_t unp_conn;
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int dom_family;
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int proto;
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int so_rcv_sb_state;
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int so_snd_sb_state;
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struct sockaddr_storage sa_local; /* Socket address. */
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struct sockaddr_storage sa_peer; /* Peer address. */
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int type;
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char dname[32];
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2017-05-26 22:17:44 +00:00
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unsigned int sendq;
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unsigned int recvq;
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2011-05-12 10:11:39 +00:00
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};
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STAILQ_HEAD(filestat_list, filestat);
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2012-09-04 05:51:50 +00:00
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__BEGIN_DECLS
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2011-05-12 10:11:39 +00:00
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void procstat_close(struct procstat *procstat);
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2013-04-20 08:07:04 +00:00
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void procstat_freeargv(struct procstat *procstat);
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2013-04-20 08:10:47 +00:00
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#ifndef ZFS
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void procstat_freeauxv(struct procstat *procstat, Elf_Auxinfo *auxv);
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#endif
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2013-04-20 08:07:04 +00:00
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void procstat_freeenvv(struct procstat *procstat);
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2013-04-20 07:54:07 +00:00
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void procstat_freegroups(struct procstat *procstat, gid_t *groups);
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2013-04-20 08:17:20 +00:00
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void procstat_freekstack(struct procstat *procstat,
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struct kinfo_kstack *kkstp);
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2011-05-12 10:11:39 +00:00
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void procstat_freeprocs(struct procstat *procstat, struct kinfo_proc *p);
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void procstat_freefiles(struct procstat *procstat,
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struct filestat_list *head);
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2017-03-30 18:21:36 +00:00
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void procstat_freeptlwpinfo(struct procstat *procstat,
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struct ptrace_lwpinfo *pl);
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2013-04-20 07:49:35 +00:00
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void procstat_freevmmap(struct procstat *procstat,
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struct kinfo_vmentry *vmmap);
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2011-05-12 10:11:39 +00:00
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struct filestat_list *procstat_getfiles(struct procstat *procstat,
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struct kinfo_proc *kp, int mmapped);
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struct kinfo_proc *procstat_getprocs(struct procstat *procstat,
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int what, int arg, unsigned int *count);
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int procstat_get_pipe_info(struct procstat *procstat, struct filestat *fst,
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struct pipestat *pipe, char *errbuf);
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int procstat_get_pts_info(struct procstat *procstat, struct filestat *fst,
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struct ptsstat *pts, char *errbuf);
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2013-05-03 21:11:57 +00:00
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int procstat_get_sem_info(struct procstat *procstat, struct filestat *fst,
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struct semstat *sem, char *errbuf);
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2012-04-01 18:22:48 +00:00
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int procstat_get_shm_info(struct procstat *procstat, struct filestat *fst,
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struct shmstat *shm, char *errbuf);
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2011-05-12 10:11:39 +00:00
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int procstat_get_socket_info(struct procstat *procstat, struct filestat *fst,
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struct sockstat *sock, char *errbuf);
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int procstat_get_vnode_info(struct procstat *procstat, struct filestat *fst,
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struct vnstat *vn, char *errbuf);
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2013-04-20 08:07:04 +00:00
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char **procstat_getargv(struct procstat *procstat, struct kinfo_proc *p,
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size_t nchr);
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2013-04-20 08:10:47 +00:00
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#ifndef ZFS
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Elf_Auxinfo *procstat_getauxv(struct procstat *procstat,
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struct kinfo_proc *kp, unsigned int *cntp);
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#endif
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2017-03-30 18:21:36 +00:00
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struct ptrace_lwpinfo *procstat_getptlwpinfo(struct procstat *procstat,
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unsigned int *cntp);
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2013-04-20 08:07:04 +00:00
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char **procstat_getenvv(struct procstat *procstat, struct kinfo_proc *p,
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size_t nchr);
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2013-04-20 07:54:07 +00:00
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gid_t *procstat_getgroups(struct procstat *procstat, struct kinfo_proc *kp,
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unsigned int *count);
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2013-04-20 08:17:20 +00:00
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struct kinfo_kstack *procstat_getkstack(struct procstat *procstat,
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struct kinfo_proc *kp, unsigned int *count);
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2013-04-20 08:03:56 +00:00
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int procstat_getosrel(struct procstat *procstat, struct kinfo_proc *kp,
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int *osrelp);
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2013-04-20 08:02:43 +00:00
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int procstat_getpathname(struct procstat *procstat, struct kinfo_proc *kp,
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char *pathname, size_t maxlen);
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2013-04-20 07:59:44 +00:00
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int procstat_getrlimit(struct procstat *procstat, struct kinfo_proc *kp,
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int which, struct rlimit* rlimit);
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2013-04-20 08:02:43 +00:00
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int procstat_getumask(struct procstat *procstat, struct kinfo_proc *kp,
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unsigned short* umask);
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2013-04-20 07:49:35 +00:00
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struct kinfo_vmentry *procstat_getvmmap(struct procstat *procstat,
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struct kinfo_proc *kp, unsigned int *count);
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2013-04-20 07:47:26 +00:00
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struct procstat *procstat_open_core(const char *filename);
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2011-05-12 10:11:39 +00:00
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struct procstat *procstat_open_sysctl(void);
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struct procstat *procstat_open_kvm(const char *nlistf, const char *memf);
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2012-09-04 05:51:50 +00:00
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__END_DECLS
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2011-05-12 10:11:39 +00:00
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#endif /* !_LIBPROCSTAT_H_ */
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