3ad2522c64
Add a statx attribute bit STATX_ATTR_VERITY which will be set if the file has fs-verity enabled. This is the statx() equivalent of FS_VERITY_FL which is returned by FS_IOC_GETFLAGS. This is useful because it allows applications to check whether a file is a verity file without opening it. Opening a verity file can be expensive because the fsverity_info is set up on open, which involves parsing metadata and optionally verifying a cryptographic signature. This is analogous to how various other bits are exposed through both FS_IOC_GETFLAGS and statx(), e.g. the encrypt bit. Reviewed-by: Andreas Dilger <adilger@dilger.ca> Acked-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Eric Biggers <ebiggers@google.com>
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_STAT_H
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#define _LINUX_STAT_H
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#include <asm/stat.h>
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#include <uapi/linux/stat.h>
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#define S_IRWXUGO (S_IRWXU|S_IRWXG|S_IRWXO)
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#define S_IALLUGO (S_ISUID|S_ISGID|S_ISVTX|S_IRWXUGO)
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#define S_IRUGO (S_IRUSR|S_IRGRP|S_IROTH)
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#define S_IWUGO (S_IWUSR|S_IWGRP|S_IWOTH)
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#define S_IXUGO (S_IXUSR|S_IXGRP|S_IXOTH)
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#define UTIME_NOW ((1l << 30) - 1l)
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#define UTIME_OMIT ((1l << 30) - 2l)
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#include <linux/types.h>
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#include <linux/time.h>
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#include <linux/uidgid.h>
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#define KSTAT_QUERY_FLAGS (AT_STATX_SYNC_TYPE)
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struct kstat {
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u32 result_mask; /* What fields the user got */
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umode_t mode;
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unsigned int nlink;
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uint32_t blksize; /* Preferred I/O size */
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u64 attributes;
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u64 attributes_mask;
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#define KSTAT_ATTR_FS_IOC_FLAGS \
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(STATX_ATTR_COMPRESSED | \
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STATX_ATTR_IMMUTABLE | \
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STATX_ATTR_APPEND | \
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STATX_ATTR_NODUMP | \
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STATX_ATTR_ENCRYPTED | \
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STATX_ATTR_VERITY \
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)/* Attrs corresponding to FS_*_FL flags */
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u64 ino;
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dev_t dev;
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dev_t rdev;
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kuid_t uid;
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kgid_t gid;
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loff_t size;
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struct timespec64 atime;
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struct timespec64 mtime;
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struct timespec64 ctime;
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struct timespec64 btime; /* File creation time */
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u64 blocks;
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};
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#endif
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