6992112349
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
129 lines
5.2 KiB
C
129 lines
5.2 KiB
C
/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. 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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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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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* @(#)fts.h 8.3 (Berkeley) 8/14/94
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* $FreeBSD$
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*/
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#ifndef _FTS_H_
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#define _FTS_H_
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typedef struct {
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struct _ftsent *fts_cur; /* current node */
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struct _ftsent *fts_child; /* linked list of children */
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struct _ftsent **fts_array; /* sort array */
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uint32_t fts_dev; /* starting device # */
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char *fts_path; /* path for this descent */
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int fts_rfd; /* fd for root */
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int fts_pathlen; /* sizeof(path) */
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int fts_nitems; /* elements in the sort array */
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int (*fts_compar) /* compare function */
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(const struct _ftsent * const *, const struct _ftsent * const *);
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#define FTS_COMFOLLOW 0x001 /* follow command line symlinks */
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#define FTS_LOGICAL 0x002 /* logical walk */
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#define FTS_NOCHDIR 0x004 /* don't change directories */
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#define FTS_NOSTAT 0x008 /* don't get stat info */
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#define FTS_PHYSICAL 0x010 /* physical walk */
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#define FTS_SEEDOT 0x020 /* return dot and dot-dot */
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#define FTS_XDEV 0x040 /* don't cross devices */
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#define FTS_WHITEOUT 0x080 /* return whiteout information */
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#define FTS_OPTIONMASK 0x0ff /* valid user option mask */
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#define FTS_NAMEONLY 0x100 /* (private) child names only */
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#define FTS_STOP 0x200 /* (private) unrecoverable error */
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int fts_options; /* fts_open options, global flags */
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void *fts_clientptr; /* thunk for sort function */
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} FTS;
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typedef struct _ftsent {
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struct _ftsent *fts_cycle; /* cycle node */
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struct _ftsent *fts_parent; /* parent directory */
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struct _ftsent *fts_link; /* next file in directory */
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union {
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struct {
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long __fts_number; /* local numeric value */
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void *__fts_pointer; /* local address value */
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} __struct_ftsent;
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int64_t __fts_bignum;
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} __union_ftsent;
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#define fts_number __union_ftsent.__struct_ftsent.__fts_number
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#define fts_pointer __union_ftsent.__struct_ftsent.__fts_pointer
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#define fts_bignum __union_ftsent.__fts_bignum
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char *fts_accpath; /* access path */
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char *fts_path; /* root path */
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int fts_errno; /* errno for this node */
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int fts_symfd; /* fd for symlink */
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u_short fts_pathlen; /* strlen(fts_path) */
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u_short fts_namelen; /* strlen(fts_name) */
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uint32_t fts_ino; /* inode */
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uint32_t fts_dev; /* device */
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uint16_t fts_nlink; /* link count */
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#define FTS_ROOTPARENTLEVEL -1
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#define FTS_ROOTLEVEL 0
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short fts_level; /* depth (-1 to N) */
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#define FTS_D 1 /* preorder directory */
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#define FTS_DC 2 /* directory that causes cycles */
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#define FTS_DEFAULT 3 /* none of the above */
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#define FTS_DNR 4 /* unreadable directory */
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#define FTS_DOT 5 /* dot or dot-dot */
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#define FTS_DP 6 /* postorder directory */
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#define FTS_ERR 7 /* error; errno is set */
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#define FTS_F 8 /* regular file */
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#define FTS_INIT 9 /* initialized only */
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#define FTS_NS 10 /* stat(2) failed */
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#define FTS_NSOK 11 /* no stat(2) requested */
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#define FTS_SL 12 /* symbolic link */
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#define FTS_SLNONE 13 /* symbolic link without target */
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#define FTS_W 14 /* whiteout object */
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u_short fts_info; /* user flags for FTSENT structure */
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#define FTS_DONTCHDIR 0x01 /* don't chdir .. to the parent */
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#define FTS_SYMFOLLOW 0x02 /* followed a symlink to get here */
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#define FTS_ISW 0x04 /* this is a whiteout object */
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u_short fts_flags; /* private flags for FTSENT structure */
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#define FTS_AGAIN 1 /* read node again */
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#define FTS_FOLLOW 2 /* follow symbolic link */
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#define FTS_NOINSTR 3 /* no instructions */
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#define FTS_SKIP 4 /* discard node */
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u_short fts_instr; /* fts_set() instructions */
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struct freebsd11_stat *fts_statp; /* stat(2) information */
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char *fts_name; /* file name */
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FTS *fts_fts; /* back pointer to main FTS */
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} FTSENT;
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#define fts_get_clientptr(fts) ((fts)->fts_clientptr)
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#define fts_get_stream(ftsent) ((ftsent)->fts_fts)
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#endif /* !_FTS_H_ */
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