1 files changed, 152 insertions, 0 deletions
diff --git a/tests/utils/get-mdata-xattr.c b/tests/utils/get-mdata-xattr.c
new file mode 100644
index 00000000000..e9f54717263
--- /dev/null
+++ b/tests/utils/get-mdata-xattr.c
@@ -0,0 +1,152 @@
+/*
+   Copyright (c) 2019 Red Hat, Inc. <http://www.redhat.com>
+   This file is part of GlusterFS.
+
+   This file is licensed to you under your choice of the GNU Lesser
+   General Public License, version 3 or any later version (LGPLv3 or
+   later), or the GNU General Public License, version 2 (GPLv2), in all
+   cases as published by the Free Software Foundation.
+*/
+
+#include <stdlib.h>
+#include <endian.h>
+#include <stdio.h>
+#include <time.h>
+#include <string.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <sys/xattr.h>
+#include <errno.h>
+
+typedef struct gf_timespec_disk {
+    uint64_t tv_sec;
+    uint64_t tv_nsec;
+} gf_timespec_disk_t;
+
+/* posix_mdata_t on disk structure */
+typedef struct __attribute__((__packed__)) posix_mdata_disk {
+    /* version of structure, bumped up if any new member is added */
+    uint8_t version;
+    /* flags indicates valid fields in the structure */
+    uint64_t flags;
+    gf_timespec_disk_t ctime;
+    gf_timespec_disk_t mtime;
+    gf_timespec_disk_t atime;
+} posix_mdata_disk_t;
+
+/* In memory representation posix metadata xattr */
+typedef struct {
+    /* version of structure, bumped up if any new member is added */
+    uint8_t version;
+    /* flags indicates valid fields in the structure */
+    uint64_t flags;
+    struct timespec ctime;
+    struct timespec mtime;
+    struct timespec atime;
+} posix_mdata_t;
+
+#define GF_XATTR_MDATA_KEY "trusted.glusterfs.mdata"
+
+/* posix_mdata_from_disk converts posix_mdata_disk_t into host byte order
+ */
+static inline void
+posix_mdata_from_disk(posix_mdata_t *out, posix_mdata_disk_t *in)
+{
+    out->version = in->version;
+    out->flags = be64toh(in->flags);
+
+    out->ctime.tv_sec = be64toh(in->ctime.tv_sec);
+    out->ctime.tv_nsec = be64toh(in->ctime.tv_nsec);
+
+    out->mtime.tv_sec = be64toh(in->mtime.tv_sec);
+    out->mtime.tv_nsec = be64toh(in->mtime.tv_nsec);
+
+    out->atime.tv_sec = be64toh(in->atime.tv_sec);
+    out->atime.tv_nsec = be64toh(in->atime.tv_nsec);
+}
+
+/* posix_fetch_mdata_xattr fetches the posix_mdata_t from disk */
+static int
+posix_fetch_mdata_xattr(const char *real_path, posix_mdata_t *metadata)
+{
+    size_t size = -1;
+    char *value = NULL;
+    char gfid_str[64] = {0};
+
+    char *key = GF_XATTR_MDATA_KEY;
+
+    if (!metadata || !real_path) {
+        goto err;
+    }
+
+    /* Get size */
+    size = lgetxattr(real_path, key, NULL, 0);
+    if (size == -1) {
+        goto err;
+    }
+
+    value = calloc(size + 1, sizeof(char));
+    if (!value) {
+        goto err;
+    }
+
+    /* Get xattr value */
+    size = lgetxattr(real_path, key, value, size);
+    if (size == -1) {
+        goto err;
+    }
+    posix_mdata_from_disk(metadata, (posix_mdata_disk_t *)value);
+
+out:
+    if (value)
+        free(value);
+    return 0;
+err:
+    if (value)
+        free(value);
+    return -1;
+}
+
+int
+main(int argc, char *argv[])
+{
+    posix_mdata_t metadata;
+    uint64_t result;
+
+    if (argc != 3) {
+        /*
+        Usage: get_mdata_xattr -c|-m|-a <file-name>
+                       where -c --> ctime
+                             -m --> mtime
+                             -a --> atime
+        */
+        printf("-1");
+        goto err;
+    }
+
+    if (posix_fetch_mdata_xattr(argv[2], &metadata)) {
+        printf("-1");
+        goto err;
+    }
+
+    switch (argv[1][1]) {
+        case 'c':
+            result = metadata.ctime.tv_sec;
+            break;
+        case 'm':
+            result = metadata.mtime.tv_sec;
+            break;
+        case 'a':
+            result = metadata.atime.tv_sec;
+            break;
+        default:
+            printf("-1");
+            goto err;
+    }
+    printf("%" PRIu64, result);
+    fflush(stdout);
+    return 0;
+err:
+    fflush(stdout);
+    return -1;
+}