On Fri, Mar 31, 2017 at 12:47 PM, David Howells <dhowells@xxxxxxxxxx> wrote:
>
> xfstests: Add first statx test
>
> Add a statx test script that does the following:
>
> (1) Creates one each of the various types of file object and creates a
> hard link to the regular file.
>
> Note that the creation of an AF_UNIX socket is done with netcat in a
> bash coprocessing thread. This might be best done with another
> in-house helper to avoid a dependency on nc.
>
> (2) Invokes the C test program included in this patch after the creation
> and hands it a list of things to check appropriate to each object.
>
> (3) Asks the test program to check the creation time of each object
> against that of the preceding object.
>
> (4) Makes various tests on the timestamps of the hardlinked file.
>
> The patch also creates a C[*] test program to do the actual stat checking.
> The test program then does the following:
>
> (1) Compares the output of statx() to that of fstatat().
>
> (2) Optionally compares the timestamps to see that they're sensibly
> ordered with respect to each other.
>
> (3) Optionally compares the timestamps to those of a reference file.
>
> (4) Optionally compares the timestamps to a specified time.
>
> (5) Optionally compares selected stats to values specified on the command
> line.
>
> (6) Optionally compares all the stats to those of a reference file,
> requiring them to be the same (hard link checking).
>
> For example:
>
> ./src/stat_test /dev/null \
> stx_type=char \
> stx_rdev_major=3 \
> stx_rdev_minor=8 \
> stx_nlink=1 \
> ref=/dev/zero \
> ts=B,b
>
> [*] Note that it proved much easier to do this in C than trying to do it in
> shell script and trying parsing the output of xfs_io. Using xfs_io has
> other pitfalls also: it wants to *open* the file, even if the file is
> not an appropriate type for this or does not grant permission to do so.
> I can get around this by opening O_PATH, but then xfs_io fails to
> handle XFS files because it wants to issue ioctls on every fd it opens.
>
> Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
> ---
> src/Makefile | 2
> src/stat_test.c | 710 ++++++++++++++++++++++++++++++++++++++++++++++++++
> src/statx.h | 166 +++++++++++
> tests/generic/420 | 221 +++++++++++++++
> tests/generic/420.out | 11
> tests/generic/group | 1
> 6 files changed, 1110 insertions(+), 1 deletion(-)
>
> diff --git a/src/Makefile b/src/Makefile
> index a7f27f0..7dc53e9 100644
> --- a/src/Makefile
> +++ b/src/Makefile
> @@ -22,7 +22,7 @@ LINUX_TARGETS = xfsctl bstat t_mtab getdevicesize preallo_rw_pattern_reader \
> seek_copy_test t_readdir_1 t_readdir_2 fsync-tester nsexec cloner \
> renameat2 t_getcwd e4compact test-nextquota punch-alternating \
> attr-list-by-handle-cursor-test listxattr dio-interleaved t_dir_type \
> - dio-invalidate-cache
> + dio-invalidate-cache stat_test
>
> SUBDIRS =
>
> diff --git a/src/stat_test.c b/src/stat_test.c
> new file mode 100644
> index 0000000..490b068
> --- /dev/null
> +++ b/src/stat_test.c
> @@ -0,0 +1,710 @@
> +/* Perform various tests on stat and statx output
> + *
> + * Copyright (C) 2017 Red Hat, Inc. All Rights Reserved.
> + * Written by David Howells (dhowells@xxxxxxxxxx)
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public Licence
> + * as published by the Free Software Foundation; either version
> + * 2 of the Licence, or (at your option) any later version.
> + */
> +
> +#include <stdarg.h>
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <stdbool.h>
> +#include <string.h>
> +#include <unistd.h>
> +#include <errno.h>
> +#include <fcntl.h>
> +#include <sys/types.h>
> +#include <sys/stat.h>
> +#include "statx.h"
> +
> +static bool failed = false;
> +static bool is_verbose = 0;
> +static const char *prog;
> +static const char *testfile;
> +
> +/* Reference data */
> +static struct statx ref;
> +static struct statx_timestamp origin;
> +static bool ref_set, origin_set;
> +
> +/*
> + * Attribute IDs, sorted for bsearch() on attr_list[].
> + */
> +enum attrs {
> + stx_atime_tv_nsec,
> + stx_atime_tv_sec,
> + stx_attributes,
> + stx_blksize,
> + stx_blocks,
> + stx_btime_tv_nsec,
> + stx_btime_tv_sec,
> + stx_ctime_tv_nsec,
> + stx_ctime_tv_sec,
> + stx_dev_major,
> + stx_dev_minor,
> + stx_gid,
> + stx_ino,
> + stx_mask,
> + stx_mode,
> + stx_mtime_tv_nsec,
> + stx_mtime_tv_sec,
> + stx_nlink,
> + stx_rdev_major,
> + stx_rdev_minor,
> + stx_size,
> + stx_type,
> + stx_uid,
> + nr__attrs
> +};
> +
> +struct attr {
> + const char *name; /* Name on command line */
> + unsigned int mask_bit;
> +};
> +
> +/*
> + * List of attributes, sorted for bsearch().
> + */
> +static const struct attr attr_list[nr__attrs] = {
> + [stx_atime_tv_nsec] = { "stx_atime.tv_nsec", STATX_ATIME },
> + [stx_atime_tv_sec] = { "stx_atime.tv_sec", STATX_ATIME },
> + [stx_attributes] = { "stx_attributes", 0 },
> + [stx_blksize] = { "stx_blksize", 0 },
> + [stx_blocks] = { "stx_blocks", STATX_BLOCKS },
> + [stx_btime_tv_nsec] = { "stx_btime.tv_nsec", STATX_BTIME },
> + [stx_btime_tv_sec] = { "stx_btime.tv_sec", STATX_BTIME },
> + [stx_ctime_tv_nsec] = { "stx_ctime.tv_nsec", STATX_CTIME },
> + [stx_ctime_tv_sec] = { "stx_ctime.tv_sec", STATX_CTIME },
> + [stx_dev_major] = { "stx_dev_major", 0 },
> + [stx_dev_minor] = { "stx_dev_minor", 0 },
> + [stx_gid] = { "stx_gid", STATX_GID },
> + [stx_ino] = { "stx_ino", STATX_INO },
> + [stx_mask] = { "stx_mask", 0 },
> + [stx_mode] = { "stx_mode", STATX_MODE },
> + [stx_mtime_tv_nsec] = { "stx_mtime.tv_nsec", STATX_MTIME },
> + [stx_mtime_tv_sec] = { "stx_mtime.tv_sec", STATX_MTIME },
> + [stx_nlink] = { "stx_nlink", STATX_NLINK },
> + [stx_rdev_major] = { "stx_rdev_major", 0 },
> + [stx_rdev_minor] = { "stx_rdev_minor", 0 },
> + [stx_size] = { "stx_size", STATX_SIZE },
> + [stx_type] = { "stx_type", STATX_TYPE },
> + [stx_uid] = { "stx_uid", STATX_UID },
> +};
> +
> +static int attr_cmp(const void *_key, const void *_p)
> +{
> + const char *key = _key;
> + const struct attr *p = _p;
> + return strcmp(key, p->name);
> +}
> +
> +struct file_type {
> + const char *name;
> + mode_t mode;
> +};
> +
> +/*
> + * List of file types.
> + */
> +static const struct file_type file_types[] = {
> + { "fifo", S_IFIFO },
> + { "char", S_IFCHR },
> + { "dir", S_IFDIR },
> + { "block", S_IFBLK },
> + { "file", S_IFREG },
> + { "sym", S_IFLNK },
> + { "sock", S_IFSOCK },
> + { NULL }
> +};
> +
> +static __attribute__((noreturn))
> +void format(void)
> +{
> + fprintf(stderr, "usage: %s [-v] [-m<mask>] <testfile> [checks]\n", prog);
> + fprintf(stderr, "\t<mask> can be basic, all or a number; all is the default\n");
> + fprintf(stderr, "checks is a list of zero or more of:\n");
> + fprintf(stderr, "\tcmp_ref -- check that the reference file has identical stats\n");
> + fprintf(stderr, "\tref=<file> -- get reference stats from file\n");
> + fprintf(stderr, "\tstx_<field>=<val> -- statx field value check\n");
> + fprintf(stderr, "\tts=<a>,<b> -- timestamp a <= b, where a and b can each be one of:\n");
> + fprintf(stderr, "\t\t[abcm] -- the timestamps from testfile\n");
> + fprintf(stderr, "\t\t[ABCM] -- the timestamps from the reference file\n");
> + fprintf(stderr, "\t\t0 -- the origin timestamp\n");
> + fprintf(stderr, "\tts_origin=<sec>.<nsec> -- set the origin timestamp\n");
> + fprintf(stderr, "\tts_order -- check the timestamp order\n");
> + fprintf(stderr, "\t\t(for stx_type, fifo char dir, block, file, sym, sock can be used)\n");
> + exit(2);
> +}
> +
> +static __attribute__((noreturn, format(printf, 1, 2)))
> +void bad_arg(const char *fmt, ...)
> +{
> + va_list va;
> +
> + va_start(va, fmt);
> + vfprintf(stderr, fmt, va);
> + va_end(va);
> + exit(2);
> +}
> +
> +static __attribute__((format(printf, 1, 2)))
> +void verbose(const char *fmt, ...)
> +{
> + va_list va;
> +
> + if (is_verbose) {
> + va_start(va, fmt);
> + fputs(" - ", stdout);
> + vprintf(fmt, va);
> + va_end(va);
> + }
> +}
> +
> +static __attribute__((format(printf, 2, 3)))
> +void check(bool good, const char *fmt, ...)
> +{
> + va_list va;
> +
> + if (!good) {
> + va_start(va, fmt);
> + fputs("[!] ", stdout);
> + vprintf(fmt, va);
> + va_end(va);
> + failed = true;
> + }
> +}
> +
> +/*
> + * Compare the contents of a statx struct with that of a stat struct and check
> + * that they're the same.
> + */
> +static void cmp_statx(const struct statx *stx, const struct stat *st)
> +{
> +#define cmp(fmt, x) \
> + do { \
> + check(stx->stx_##x == st->st_##x, \
> + "stat.%s differs, "fmt" != "fmt"\n", \
> + #x, \
> + (unsigned long long)stx->stx_##x, \
> + (unsigned long long)st->st_##x); \
> + } while (0)
> +
> + cmp("%llu", blksize);
> + cmp("%llu", nlink);
> + cmp("%llu", uid);
> + cmp("%llu", gid);
> + cmp("%llo", mode);
> + cmp("%llu", ino);
> + cmp("%llu", size);
> + cmp("%llu", blocks);
> +
> +#define devcmp(x) \
> + do { \
> + check(stx->stx_##x##_major == major(st->st_##x), \
> + "stat.%s.major differs, %u != %u\n", \
> + #x, \
> + stx->stx_##x##_major, \
> + major(st->st_##x)); \
> + check(stx->stx_##x##_minor == minor(st->st_##x), \
> + "stat.%s.minor differs, %u != %u\n", \
> + #x, \
> + stx->stx_##x##_minor, \
> + minor(st->st_##x)); \
> + } while (0)
> +
> + devcmp(dev);
> + devcmp(rdev);
> +
> +#define timecmp(x) \
> + do { \
> + check(stx->stx_##x##time.tv_sec == st->st_##x##tim.tv_sec, \
> + "stat.%stime.tv_sec differs, %lld != %lld\n", \
> + #x, \
> + (long long)stx->stx_##x##time.tv_sec, \
> + (long long)st->st_##x##tim.tv_sec); \
> + check(stx->stx_##x##time.tv_nsec == st->st_##x##tim.tv_nsec, \
> + "stat.%stime.tv_nsec differs, %lld != %lld\n", \
> + #x, \
> + (long long)stx->stx_##x##time.tv_nsec, \
> + (long long)st->st_##x##tim.tv_nsec); \
> + } while (0)
> +
> + timecmp(a);
> + timecmp(c);
> + timecmp(m);
> +}
> +
> +/*
> + * Set origin timestamp from a "<sec>.<nsec>" string.
> + */
> +static void set_origin_timestamp(const char *arg)
> +{
> + long long sec;
> + int nsec;
> +
> + switch (sscanf(arg, "%lld.%d", &sec, &nsec)) {
> + case 0:
> + bad_arg("ts_origin= missing seconds value");
> + case 1:
> + bad_arg("ts_origin= missing nanoseconds value");
> + default:
> + origin.tv_sec = sec;
> + origin.tv_nsec = nsec;
> + origin_set = true;
> + break;
> + }
> +}
> +
> +/*
> + * Get reference stats from a file.
> + */
> +static void get_reference(const char *file)
> +{
> + int ret;
> +
> + if (!*file)
> + bad_arg("ref= requires a filename\n");
> +
> + memset(&ref, 0xfb, sizeof(ref));
> + ret = xfstests_statx(AT_FDCWD, file, AT_SYMLINK_NOFOLLOW,
> + STATX_ATIME | STATX_BTIME | STATX_CTIME | STATX_MTIME,
> + &ref);
> + switch (ret) {
> + case 0:
> + ref_set = true;
> + break;
> + case -1:
> + perror(file);
> + exit(1);
> + default:
> + fprintf(stderr, "Unexpected return %d from statx()\n", ret);
> + exit(1);
> + }
> +}
> +
> +/*
> + * Check a pair of timestamps.
> + */
> +static void check_earlier(const struct statx_timestamp *A,
> + const struct statx_timestamp *B,
> + const char *A_name,
> + const char *B_name)
> +{
> +
> + check((B->tv_sec - A->tv_sec) >= 0,
> + "%s.sec is before %s.sec (%lld < %lld)\n",
> + B_name, A_name, B->tv_sec, A->tv_sec);
> +
> + check((B->tv_nsec - A->tv_nsec) >= 0,
> + "%s.nsec is before %s.nsec (%d < %d)\n",
> + B_name, A_name, B->tv_nsec, A->tv_nsec);
> +}
> +
> +/*
> + * Check that the timestamps are reasonably ordered.
> + *
> + * We require the following to hold true immediately after creation if the
> + * relevant timestamps exist on the filesystem:
> + *
> + * btime <= atime
> + * btime <= mtime <= ctime
> + */
> +static void check_timestamp_order(const struct statx *stx)
> +{
> + if ((stx->stx_mask & (STATX_BTIME | STATX_ATIME)) == (STATX_BTIME | STATX_ATIME))
> + check_earlier(&stx->stx_btime, &stx->stx_atime, "btime", "atime");
> + if ((stx->stx_mask & (STATX_BTIME | STATX_MTIME)) == (STATX_BTIME | STATX_MTIME))
> + check_earlier(&stx->stx_btime, &stx->stx_mtime, "btime", "mtime");
> + if ((stx->stx_mask & (STATX_BTIME | STATX_CTIME)) == (STATX_BTIME | STATX_CTIME))
> + check_earlier(&stx->stx_btime, &stx->stx_ctime, "btime", "ctime");
> + if ((stx->stx_mask & (STATX_MTIME | STATX_CTIME)) == (STATX_MTIME | STATX_CTIME))
> + check_earlier(&stx->stx_mtime, &stx->stx_ctime, "mtime", "ctime");
> +}
> +
> +/*
> + * Check that the second timestamp is the same as or after the first timestamp.
> + */
> +static void check_timestamp(const struct statx *stx, char *arg)
> +{
> + const struct statx_timestamp *a, *b;
> + const char *an, *bn;
> + unsigned int mask;
> +
> + if (strlen(arg) != 3 || arg[1] != ',')
> + bad_arg("ts= requires <a>,<b>\n");
> +
> + switch (arg[0]) {
> + case 'a': a = &stx->stx_atime; an = "atime"; mask = STATX_ATIME; break;
> + case 'b': a = &stx->stx_btime; an = "btime"; mask = STATX_BTIME; break;
> + case 'c': a = &stx->stx_ctime; an = "ctime"; mask = STATX_CTIME; break;
> + case 'm': a = &stx->stx_mtime; an = "mtime"; mask = STATX_MTIME; break;
> + case 'A': a = &ref.stx_atime; an = "ref_a"; mask = STATX_ATIME; break;
> + case 'B': a = &ref.stx_btime; an = "ref_b"; mask = STATX_BTIME; break;
> + case 'C': a = &ref.stx_ctime; an = "ref_c"; mask = STATX_CTIME; break;
> + case 'M': a = &ref.stx_mtime; an = "ref_m"; mask = STATX_MTIME; break;
> + case '0': a = &origin; an = "origin"; mask = 0; break;
> + default:
> + bad_arg("ts= timestamp '%c' not supported\n", arg[0]);
> + }
> +
> + if (arg[0] == '0') {
> + if (!origin_set)
> + bad_arg("ts= timestamp '%c' requires origin= first\n", arg[0]);
> + } else if (arg[0] <= 'Z') {
> + if (!ref_set)
> + bad_arg("ts= timestamp '%c' requires ref= first\n", arg[0]);
> + if (!(ref.stx_mask & mask))
> + return;
> + } else {
> + if (!(stx->stx_mask & mask))
> + return;
> + }
> +
> + switch (arg[2]) {
> + case 'a': b = &stx->stx_atime; bn = "atime"; mask = STATX_ATIME; break;
> + case 'b': b = &stx->stx_btime; bn = "btime"; mask = STATX_BTIME; break;
> + case 'c': b = &stx->stx_ctime; bn = "ctime"; mask = STATX_CTIME; break;
> + case 'm': b = &stx->stx_mtime; bn = "mtime"; mask = STATX_MTIME; break;
> + case 'A': b = &ref.stx_atime; bn = "ref_a"; mask = STATX_ATIME; break;
> + case 'B': b = &ref.stx_btime; bn = "ref_b"; mask = STATX_BTIME; break;
> + case 'C': b = &ref.stx_ctime; bn = "ref_c"; mask = STATX_CTIME; break;
> + case 'M': b = &ref.stx_mtime; bn = "ref_m"; mask = STATX_MTIME; break;
> + case '0': b = &origin; bn = "origin"; mask = 0; break;
> + default:
> + bad_arg("ts= timestamp '%c' not supported\n", arg[2]);
> + }
> +
> + if (arg[2] == '0') {
> + if (!origin_set)
> + bad_arg("ts= timestamp '%c' requires origin= first\n", arg[0]);
> + } else if (arg[2] <= 'Z') {
> + if (!ref_set)
> + bad_arg("ts= timestamp '%c' requires ref= first\n", arg[2]);
> + if (!(ref.stx_mask & mask))
> + return;
> + } else {
> + if (!(stx->stx_mask & mask))
> + return;
> + }
> +
> + verbose("check %s <= %s\n", an, bn);
> + check_earlier(a, b, an, bn);
> +}
> +
> +/*
> + * Compare to reference file.
> + */
> +static void cmp_ref(const struct statx *stx, unsigned int mask)
> +{
> +#undef cmp
> +#define cmp(fmt, x) \
> + do { \
> + check(stx->x == ref.x, \
> + "attr '%s' differs from ref file, "fmt" != "fmt"\n", \
> + #x, \
> + (unsigned long long)stx->x, \
> + (unsigned long long)ref.x); \
> + } while (0)
> +
> + cmp("%llx", stx_mask);
> + cmp("%llx", stx_attributes);
> + cmp("%llu", stx_blksize);
> + cmp("%llu", stx_attributes);
> + cmp("%llu", stx_nlink);
> + cmp("%llu", stx_uid);
> + cmp("%llu", stx_gid);
> + cmp("%llo", stx_mode);
> + cmp("%llu", stx_ino);
> + cmp("%llu", stx_size);
> + cmp("%llu", stx_blocks);
> + cmp("%lld", stx_atime.tv_sec);
> + cmp("%lld", stx_atime.tv_nsec);
> + cmp("%lld", stx_btime.tv_sec);
> + cmp("%lld", stx_btime.tv_nsec);
> + cmp("%lld", stx_ctime.tv_sec);
> + cmp("%lld", stx_ctime.tv_nsec);
> + cmp("%lld", stx_mtime.tv_sec);
> + cmp("%lld", stx_mtime.tv_nsec);
> + cmp("%llu", stx_rdev_major);
> + cmp("%llu", stx_rdev_minor);
> + cmp("%llu", stx_dev_major);
> + cmp("%llu", stx_dev_minor);
> +}
> +
> +/*
> + * Check an attribute restriction. Specified on the command line as a key=val
> + * pair in the checks section. For instance:
> + *
> + * stx_type=char
> + * stx_mode=0644
> + */
> +static void check_attr(const struct statx *stx, char *arg)
> +{
> + const struct file_type *type;
> + const struct attr *attr;
> + unsigned long long ucheck, uval;
> + long long scheck, sval;
> + char *key, *val, *p;
> +
> + verbose("check %s\n", arg);
> +
> + key = arg;
> + val = strchr(key, '=');
> + if (!val || !val[1])
> + bad_arg("%s check requires value\n", key);
> + *(val++) = 0;
> +
> + attr = bsearch(key, attr_list, nr__attrs, sizeof(*attr), attr_cmp);
> + if (!attr)
> + bad_arg("Attr '%s' not supported\n", key);
> +
> + /* Read the stat information specified by the key. */
> + switch ((enum attrs)(attr - attr_list)) {
> + case stx_mask: uval = stx->stx_mask; break;
> + case stx_blksize: uval = stx->stx_blksize; break;
> + case stx_attributes: uval = stx->stx_attributes; break;
> + case stx_nlink: uval = stx->stx_nlink; break;
> + case stx_uid: uval = stx->stx_uid; break;
> + case stx_gid: uval = stx->stx_gid; break;
> + case stx_type: uval = stx->stx_mode & ~07777; break;
> + case stx_mode: uval = stx->stx_mode & 07777; break;
> + case stx_ino: uval = stx->stx_ino; break;
> + case stx_size: uval = stx->stx_size; break;
> + case stx_blocks: uval = stx->stx_blocks; break;
> + case stx_rdev_major: uval = stx->stx_rdev_major; break;
> + case stx_rdev_minor: uval = stx->stx_rdev_minor; break;
> + case stx_dev_major: uval = stx->stx_dev_major; break;
> + case stx_dev_minor: uval = stx->stx_dev_minor; break;
> +
> + case stx_atime_tv_sec: sval = stx->stx_atime.tv_sec; break;
> + case stx_atime_tv_nsec: sval = stx->stx_atime.tv_nsec; break;
> + case stx_btime_tv_sec: sval = stx->stx_btime.tv_sec; break;
> + case stx_btime_tv_nsec: sval = stx->stx_btime.tv_nsec; break;
> + case stx_ctime_tv_sec: sval = stx->stx_ctime.tv_sec; break;
> + case stx_ctime_tv_nsec: sval = stx->stx_ctime.tv_nsec; break;
> + case stx_mtime_tv_sec: sval = stx->stx_mtime.tv_sec; break;
> + case stx_mtime_tv_nsec: sval = stx->stx_mtime.tv_nsec; break;
> + default:
> + break;
> + }
> +
> + /* Parse the specified value as signed or unsigned as
> + * appropriate and compare to the stat information.
> + */
> + switch ((enum attrs)(attr - attr_list)) {
> + case stx_mask:
> + case stx_attributes:
> + ucheck = strtoull(val, &p, 0);
> + if (*p)
> + bad_arg("Attr '%s' requires unsigned integer\n", key);
> + check(uval == ucheck,
> + "%s differs, 0x%llx != 0x%llx\n", attr->name, uval, ucheck);
> + break;
> +
> + case stx_type:
> + for (type = file_types; type->name; type++) {
> + if (strcmp(type->name, val) == 0) {
> + ucheck = type->mode;
> + goto octal_check;
> + }
> + }
> +
> + /* fall through */
> +
> + case stx_mode:
> + ucheck = strtoull(val, &p, 0);
> + if (*p)
> + bad_arg("Attr '%s' requires unsigned integer\n", key);
> + octal_check:
> + check(uval == ucheck,
> + "%s differs, 0%llo != 0%llo\n", attr->name, uval, ucheck);
> + break;
> +
> + case stx_blksize:
> + case stx_nlink:
> + case stx_uid:
> + case stx_gid:
> + case stx_ino:
> + case stx_size:
> + case stx_blocks:
> + case stx_rdev_major:
> + case stx_rdev_minor:
> + case stx_dev_major:
> + case stx_dev_minor:
> + ucheck = strtoull(val, &p, 0);
> + if (*p)
> + bad_arg("Attr '%s' requires unsigned integer\n", key);
> + check(uval == ucheck,
> + "%s differs, %llu != %llu\n", attr->name, uval, ucheck);
> + break;
> +
> + case stx_atime_tv_sec:
> + case stx_atime_tv_nsec:
> + case stx_btime_tv_sec:
> + case stx_btime_tv_nsec:
> + case stx_ctime_tv_sec:
> + case stx_ctime_tv_nsec:
> + case stx_mtime_tv_sec:
> + case stx_mtime_tv_nsec:
> + scheck = strtoll(val, &p, 0);
> + if (*p)
> + bad_arg("Attr '%s' requires integer\n", key);
> + check(sval == scheck,
> + "%s differs, %lld != %lld\n", attr->name, sval, scheck);
> + break;
> +
> + default:
> + break;
> + }
> +}
> +
> +/*
> + * Do the testing.
> + */
> +int main(int argc, char **argv)
> +{
> + struct statx stx;
> + struct stat st;
> + unsigned int mask = STATX_ALL;
> + unsigned int atflags = AT_STATX_SYNC_AS_STAT;
> + char *p;
> + int c, ret;
> +
> + prog = argv[0];
> + while (c = getopt(argc, argv, "+DFm:v"),
> + c != -1
> + ) {
> + switch (c) {
> + case 'F':
> + atflags &= ~AT_STATX_SYNC_TYPE;
> + atflags |= AT_STATX_FORCE_SYNC;
> + break;
> + case 'D':
> + atflags &= ~AT_STATX_SYNC_TYPE;
> + atflags |= AT_STATX_DONT_SYNC;
> + break;
> + case 'm':
> + if (strcmp(optarg, "basic") == 0) {
> + mask = STATX_BASIC_STATS;
> + } else if (strcmp(optarg, "all") == 0) {
> + mask = STATX_ALL;
> + } else {
> + mask = strtoul(optarg, &p, 0);
> + if (*p)
> + format();
> + }
> + break;
> + case 'v':
> + is_verbose = 1;
> + break;
> + default:
> + format();
> + }
> + }
> +
> + argc -= optind;
> + argv += optind;
> + if (argc < 1)
> + format();
> + testfile = argv[0];
> + argv += 1;
> +
> + /* Gather the stats. We want both statx and stat so that we can
> + * compare what's in the buffers.
> + */
> + verbose("call statx %s\n", testfile);
> + memset(&stx, 0xfb, sizeof(stx));
> + ret = xfstests_statx(AT_FDCWD, testfile, atflags | AT_SYMLINK_NOFOLLOW,
> + mask, &stx);
> + switch (ret) {
> + case 0:
> + break;
> + case -1:
> + perror(testfile);
> + exit(1);
> + default:
> + fprintf(stderr, "Unexpected return %d from statx()\n", ret);
> + exit(1);
> + }
> +
> + verbose("call stat %s\n", testfile);
> + ret = fstatat(AT_FDCWD, testfile, &st, AT_SYMLINK_NOFOLLOW);
> + switch (ret) {
> + case 0:
> + break;
> + case -1:
> + perror(testfile);
> + exit(1);
> + default:
> + fprintf(stderr, "Unexpected return %d from stat()\n", ret);
> + exit(1);
> + }
> +
> + verbose("compare statx and stat\n");
> + cmp_statx(&stx, &st);
> +
> + /* Display the available timestamps */
> + verbose("begin time %llu.%09u\n", origin.tv_sec, origin.tv_nsec);
> + if (stx.stx_mask & STATX_BTIME)
> + verbose(" btime %llu.%09u\n", stx.stx_btime.tv_sec, stx.stx_btime.tv_nsec);
> + if (stx.stx_mask & STATX_ATIME)
> + verbose(" atime %llu.%09u\n", stx.stx_atime.tv_sec, stx.stx_atime.tv_nsec);
> + if (stx.stx_mask & STATX_MTIME)
> + verbose(" mtime %llu.%09u\n", stx.stx_mtime.tv_sec, stx.stx_mtime.tv_nsec);
> + if (stx.stx_mask & STATX_CTIME)
> + verbose(" ctime %llu.%09u\n", stx.stx_ctime.tv_sec, stx.stx_ctime.tv_nsec);
> +
> + /* Handle additional checks the user specified */
> + for (; *argv; argv++) {
> + char *arg = *argv;
> + if (strncmp(arg, "stx_", 4) == 0) {
> + /* stx_<field>=<n> - check field set to n */
> + check_attr(&stx, *argv);
> + continue;
> + }
> +
> + if (strncmp("ref=", arg, 4) == 0) {
> + /* ref=<file> - set reference stats from file */
> + get_reference(arg + 4);
> + continue;
> + }
> +
> + if (strcmp("ts_order", arg) == 0) {
> + /* ts_order - check timestamp order */
> + check_timestamp_order(&stx);
> + continue;
> + }
> +
> + if (strncmp("ts_origin=", arg, 10) == 0) {
> + /* ts_origin=<sec>.<nsec> - set origin timestamp */
> + set_origin_timestamp(arg + 10);
> + continue;
> + }
> +
> + if (strncmp("ts=", arg, 3) == 0) {
> + /* ts=<a>,<b> - check timestamp b is same as a or after */
> + check_timestamp(&stx, arg + 3);
> + continue;
> + }
> +
> + if (strcmp("cmp_ref", arg) == 0) {
> + /* cmp_ref - check ref file has same stats */
> + cmp_ref(&stx, mask);
> + continue;
> + }
> +
> + bad_arg("check '%s' not supported\n", arg);
> + }
> +
> + if (failed) {
> + printf("Failed\n");
> + exit(1);
> + }
> +
> + verbose("Success\n");
> + exit(0);
> +}
> diff --git a/src/statx.h b/src/statx.h
> new file mode 100644
> index 0000000..711d1ba
> --- /dev/null
> +++ b/src/statx.h
> @@ -0,0 +1,166 @@
> +#ifndef STATX_H
> +#define STATX_H
> +
> +#include <unistd.h>
> +#include <linux/types.h>
> +
> +#ifndef AT_STATX_SYNC_TYPE
> +#define AT_STATX_SYNC_TYPE 0x6000 /* Type of synchronisation required from statx() */
> +#define AT_STATX_SYNC_AS_STAT 0x0000 /* - Do whatever stat() does */
> +#define AT_STATX_FORCE_SYNC 0x2000 /* - Force the attributes to be sync'd with the server */
> +#define AT_STATX_DONT_SYNC 0x4000 /* - Don't sync attributes with the server */
> +#endif
> +
> +#ifndef AT_NO_AUTOMOUNT
> +#define AT_NO_AUTOMOUNT 0x800 /* Suppress terminal automount traversal */
> +#endif
> +
> +#ifdef __i386__
> +#define __NR_statx 383
> +#elif defined (__ILP32__)
> +#define __NR_statx (__X32_SYSCALL_BIT + 332)
> +#else
> +#define __NR_statx 332
> +#endif
> +
> +#ifndef STATX_TYPE
> +
> +/*
> + * Timestamp structure for the timestamps in struct statx.
> + *
> + * tv_sec holds the number of seconds before (negative) or after (positive)
> + * 00:00:00 1st January 1970 UTC.
> + *
> + * tv_nsec holds a number of nanoseconds before (0..-999,999,999 if tv_sec is
> + * negative) or after (0..999,999,999 if tv_sec is positive) the tv_sec time.
> + *
> + * Note that if both tv_sec and tv_nsec are non-zero, then the two values must
> + * either be both positive or both negative.
> + *
> + * __reserved is held in case we need a yet finer resolution.
> + */
> +struct statx_timestamp {
> + __s64 tv_sec;
> + __s32 tv_nsec;
> + __s32 __reserved;
> +};
> +
> +/*
> + * Structures for the extended file attribute retrieval system call
> + * (statx()).
> + *
> + * The caller passes a mask of what they're specifically interested in as a
> + * parameter to statx(). What statx() actually got will be indicated in
> + * st_mask upon return.
> + *
> + * For each bit in the mask argument:
> + *
> + * - if the datum is not supported:
> + *
> + * - the bit will be cleared, and
> + *
> + * - the datum will be set to an appropriate fabricated value if one is
> + * available (eg. CIFS can take a default uid and gid), otherwise
> + *
> + * - the field will be cleared;
> + *
> + * - otherwise, if explicitly requested:
> + *
> + * - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is
> + * set or if the datum is considered out of date, and
> + *
> + * - the field will be filled in and the bit will be set;
> + *
> + * - otherwise, if not requested, but available in approximate form without any
> + * effort, it will be filled in anyway, and the bit will be set upon return
> + * (it might not be up to date, however, and no attempt will be made to
> + * synchronise the internal state first);
> + *
> + * - otherwise the field and the bit will be cleared before returning.
> + *
> + * Items in STATX_BASIC_STATS may be marked unavailable on return, but they
> + * will have values installed for compatibility purposes so that stat() and
> + * co. can be emulated in userspace.
> + */
> +struct statx {
> + /* 0x00 */
> + __u32 stx_mask; /* What results were written [uncond] */
> + __u32 stx_blksize; /* Preferred general I/O size [uncond] */
> + __u64 stx_attributes; /* Flags conveying information about the file [uncond] */
> + /* 0x10 */
> + __u32 stx_nlink; /* Number of hard links */
> + __u32 stx_uid; /* User ID of owner */
> + __u32 stx_gid; /* Group ID of owner */
> + __u16 stx_mode; /* File mode */
> + __u16 __spare0[1];
> + /* 0x20 */
> + __u64 stx_ino; /* Inode number */
> + __u64 stx_size; /* File size */
> + __u64 stx_blocks; /* Number of 512-byte blocks allocated */
> + __u64 __spare1[1];
> + /* 0x40 */
> + struct statx_timestamp stx_atime; /* Last access time */
> + struct statx_timestamp stx_btime; /* File creation time */
> + struct statx_timestamp stx_ctime; /* Last attribute change time */
> + struct statx_timestamp stx_mtime; /* Last data modification time */
> + /* 0x80 */
> + __u32 stx_rdev_major; /* Device ID of special file [if bdev/cdev] */
> + __u32 stx_rdev_minor;
> + __u32 stx_dev_major; /* ID of device containing file [uncond] */
> + __u32 stx_dev_minor;
> + /* 0x90 */
> + __u64 __spare2[14]; /* Spare space for future expansion */
> + /* 0x100 */
> +};
> +
> +/*
> + * Flags to be stx_mask
> + *
> + * Query request/result mask for statx() and struct statx::stx_mask.
> + *
> + * These bits should be set in the mask argument of statx() to request
> + * particular items when calling statx().
> + */
> +#define STATX_TYPE 0x00000001U /* Want/got stx_mode & S_IFMT */
> +#define STATX_MODE 0x00000002U /* Want/got stx_mode & ~S_IFMT */
> +#define STATX_NLINK 0x00000004U /* Want/got stx_nlink */
> +#define STATX_UID 0x00000008U /* Want/got stx_uid */
> +#define STATX_GID 0x00000010U /* Want/got stx_gid */
> +#define STATX_ATIME 0x00000020U /* Want/got stx_atime */
> +#define STATX_MTIME 0x00000040U /* Want/got stx_mtime */
> +#define STATX_CTIME 0x00000080U /* Want/got stx_ctime */
> +#define STATX_INO 0x00000100U /* Want/got stx_ino */
> +#define STATX_SIZE 0x00000200U /* Want/got stx_size */
> +#define STATX_BLOCKS 0x00000400U /* Want/got stx_blocks */
> +#define STATX_BASIC_STATS 0x000007ffU /* The stuff in the normal stat struct */
> +#define STATX_BTIME 0x00000800U /* Want/got stx_btime */
> +#define STATX_ALL 0x00000fffU /* All currently supported flags */
> +
> +/*
> + * Attributes to be found in stx_attributes
> + *
> + * These give information about the features or the state of a file that might
> + * be of use to ordinary userspace programs such as GUIs or ls rather than
> + * specialised tools.
> + *
> + * Note that the flags marked [I] correspond to generic FS_IOC_FLAGS
> + * semantically. Where possible, the numerical value is picked to correspond
> + * also.
> + */
> +#define STATX_ATTR_COMPRESSED 0x00000004 /* [I] File is compressed by the fs */
> +#define STATX_ATTR_IMMUTABLE 0x00000010 /* [I] File is marked immutable */
> +#define STATX_ATTR_APPEND 0x00000020 /* [I] File is append-only */
> +#define STATX_ATTR_NODUMP 0x00000040 /* [I] File is not to be dumped */
> +#define STATX_ATTR_ENCRYPTED 0x00000800 /* [I] File requires key to decrypt in fs */
> +
> +#define STATX_ATTR_AUTOMOUNT 0x00001000 /* Dir: Automount trigger */
> +
> +static inline
> +int xfstests_statx(int dfd, const char *filename, unsigned flags,
> + unsigned int mask, struct statx *buffer)
> +{
> + return syscall(__NR_statx, dfd, filename, flags, mask, buffer);
> +}
> +
> +#endif /* STATX_TYPE */
> +#endif /* STATX_H */
> diff --git a/tests/generic/420 b/tests/generic/420
> new file mode 100755
> index 0000000..d16ee3c
> --- /dev/null
> +++ b/tests/generic/420
> @@ -0,0 +1,221 @@
> +#! /bin/bash
> +# FS QA Test 420
> +#
> +# Test the statx system call
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2017 Red Hat, Inc. All Rights Reserved.
> +# Written by David Howells (dhowells@xxxxxxxxxx)
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#-----------------------------------------------------------------------
> +#
> +
> +seq=`basename $0`
> +seqres=$RESULT_DIR/$seq
> +echo "QA output created by $seq"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +status=1 # failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +_cleanup()
> +{
> + cd /
> + rm -f $tmp.*
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +
> +# remove previous $seqres.full before test
> +rm -f $seqres.full
> +
> +# real QA test starts here
> +
> +# Modify as appropriate.
> +_supported_fs generic
> +_supported_os Linux
> +_require_test
> +_require_test_program "stat_test"
> +
> +function check_stat () {
> + $here/src/stat_test $*
> +}
> +
> +###############################################################################
> +#
> +# Check statx'ing of various types of object
> +#
> +###############################################################################
> +failed=0
> +
> +echo "Test statx on a fifo"
> +if mkfifo -m 0600 $SCRATCH_MNT/fifo
> +then
> + check_stat $SCRATCH_MNT/fifo \
> + ts_order \
> + stx_type=fifo \
> + stx_mode=0600 \
> + stx_rdev_major=0 \
> + stx_rdev_minor=0 \
> + stx_nlink=1 \
> + || failed=1
> +else
> + echo "- mkfifo failed"
> + failed=1
> +fi
> +
> +echo "Test statx on a chardev"
> +if mknod -m 0600 $SCRATCH_MNT/null c 1 3
> +then
> + check_stat $SCRATCH_MNT/null \
> + ts_order \
> + ref=$SCRATCH_MNT/fifo \
> + ts=B,b
> + ts=M,m
> + stx_type=char \
> + stx_mode=0600 \
> + stx_rdev_major=1 \
> + stx_rdev_minor=3 \
> + stx_nlink=1 \
> + || failed=1
> +else
> + echo "- mknod failed"
> + failed=1
> +fi
> +
> +echo "Test statx on a directory"
> +if mkdir $SCRATCH_MNT/dir
> +then
> + check_stat $SCRATCH_MNT/dir \
> + ts_order \
> + ref=$SCRATCH_MNT/null \
> + ts=B,b
> + ts=M,m
> + stx_type=dir \
> + stx_mode=0755 \
> + stx_rdev_major=0 \
> + stx_rdev_minor=0 \
> + stx_nlink=2 \
> + || failed=1
> +else
> + echo "- mkdir failed"
> + failed=1
> +fi
> +
> +echo "Test statx on a blockdev"
> +if mknod -m 0600 $SCRATCH_MNT/loopy b 7 123
> +then
> + check_stat $SCRATCH_MNT/loopy \
> + ts_order \
> + ref=$SCRATCH_MNT/dir \
> + ts=B,b
> + ts=M,m
> + stx_type=block \
> + stx_mode=0600 \
> + stx_rdev_major=7 \
> + stx_rdev_minor=123 \
> + stx_nlink=1 \
> + || failed=1
> +else
> + echo "- mknod failed"
> + failed=1
> +fi
> +
> +echo "Test statx on a file"
> +if dd if=/dev/zero of=$SCRATCH_MNT/file bs=1024 count=20
> +then
> + check_stat $SCRATCH_MNT/file \
> + ts_order \
> + ref=$SCRATCH_MNT/loopy \
> + ts=B,b
> + ts=M,m
> + stx_type=file \
> + stx_size=20480 \
> + stx_rdev_major=0 \
> + stx_rdev_minor=0 \
> + stx_nlink=1 \
> + || failed=1
> +else
> + echo "- dd failed"
> + failed=1
> +fi
> +
> +echo "Test statx on a symlink"
> +if ln -s $SCRATCH_MNT/nowhere $SCRATCH_MNT/symlink
> +then
> + check_stat $SCRATCH_MNT/symlink \
> + ts_order \
> + ref=$SCRATCH_MNT/file \
> + ts=B,b
> + ts=M,m
> + stx_type=sym \
> + stx_rdev_major=0 \
> + stx_rdev_minor=0 \
> + stx_nlink=1 \
> + || failed=1
> +else
> + echo "- ln -s failed"
> + failed=1
> +fi
> +
> +echo "Test statx on an AF_UNIX socket"
> +if (coproc SERVER { nc -U -l $SCRATCH_MNT/sock </dev/null; };
> + nc -U $SCRATCH_MNT/sock </dev/null;
> + wait)
> +then
> + check_stat $SCRATCH_MNT/sock \
> + ts_order \
> + ref=$SCRATCH_MNT/symlink \
> + ts=B,b
> + ts=M,m
> + stx_type=sock \
> + stx_rdev_major=0 \
> + stx_rdev_minor=0 \
> + stx_nlink=1 \
> + || failed=1
> +else
> + echo "- nc failed"
> + failed=1
> +fi
> +
Very cool :-)
Suggest to add an explicit comment here to mention this relies on the order
of creation of files by this test being: dir => file => sock => link
> +echo "Test a hard link to a file"
> +if ln $SCRATCH_MNT/file $SCRATCH_MNT/link
> +then
> + check_stat $SCRATCH_MNT/link \
> + ref=$SCRATCH_MNT/dir \
> + ts=B,b \
> + ref=$SCRATCH_MNT/sock \
> + ts=b,B \
> + ts=B,c \
> + ts=C,c \
> + ref=$SCRATCH_MNT/file \
> + cmp_ref \
> + stx_nlink=2 \
> + || failed=1
> +else
> + echo "- ln failed"
> + failed=1
> +fi
> +
> +# optional stuff if your test has verbose output to help resolve problems
> +#echo
> +#echo "If failure, check $seqres.full (this) and $seqres.full.ok (reference)"
> +
> +# success, all done
> +status=$failed
> +exit
> diff --git a/tests/generic/420.out b/tests/generic/420.out
> new file mode 100644
> index 0000000..21d6ffc
> --- /dev/null
> +++ b/tests/generic/420.out
> @@ -0,0 +1,11 @@
> +QA output created by 420
> +Test statx on a fifo
> +Test statx on a chardev
> +Test statx on a directory
> +Test statx on a blockdev
> +Test statx on a file
> +20+0 records in
> +20+0 records out
> +Test statx on a symlink
> +Test statx on an AF_UNIX socket
> +Test a hard link to a file
> diff --git a/tests/generic/group b/tests/generic/group
> index 0781f35..5678101 100644
> --- a/tests/generic/group
> +++ b/tests/generic/group
> @@ -422,3 +422,4 @@
> 417 auto quick shutdown log
> 418 auto rw
> 419 auto quick encrypt
> +420 auto quick
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