From: Filipe Manana <fdmanana@xxxxxxxx>
The previous patch added support for an operation to set xattrs on regular
files and directories, this patch just adds one operation to read (get)
them.
Signed-off-by: Filipe Manana <fdmanana@xxxxxxxx>
---
ltp/fsstress.c | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 84 insertions(+)
diff --git a/ltp/fsstress.c b/ltp/fsstress.c
index 03e40eb6..d7ea1da0 100644
--- a/ltp/fsstress.c
+++ b/ltp/fsstress.c
@@ -70,6 +70,7 @@ typedef enum {
OP_FSYNC,
OP_GETATTR,
OP_GETDENTS,
+ OP_GETXATTR,
OP_LINK,
OP_MKDIR,
OP_MKNOD,
@@ -182,6 +183,7 @@ void freesp_f(int, long);
void fsync_f(int, long);
void getattr_f(int, long);
void getdents_f(int, long);
+void getxattr_f(int, long);
void link_f(int, long);
void mkdir_f(int, long);
void mknod_f(int, long);
@@ -234,6 +236,7 @@ opdesc_t ops[] = {
{ OP_FSYNC, "fsync", fsync_f, 1, 1 },
{ OP_GETATTR, "getattr", getattr_f, 1, 0 },
{ OP_GETDENTS, "getdents", getdents_f, 1, 0 },
+ { OP_GETXATTR, "getxattr", getxattr_f, 2, 0 },
{ OP_LINK, "link", link_f, 1, 1 },
{ OP_MKDIR, "mkdir", mkdir_f, 2, 1 },
{ OP_MKNOD, "mknod", mknod_f, 2, 1 },
@@ -3522,6 +3525,87 @@ getdents_f(int opno, long r)
}
void
+getxattr_f(int opno, long r)
+{
+ int fd;
+ fent_t *fep;
+ int e;
+ pathname_t f;
+ int v;
+ char name[18];
+ char *value = NULL;
+ int value_len;
+ int xattr_num;
+ DIR *dir = NULL;
+
+ init_pathname(&f);
+ if (!get_fname(FT_REGFILE | FT_DIRm, r, &f, NULL, &fep, &v)) {
+ if (v)
+ printf("%d/%d: getxattr - no filename\n", procid, opno);
+ free_pathname(&f);
+ return;
+ }
+ fd = open_path(&f, O_RDONLY);
+ if (fd < 0 && errno == EISDIR) {
+ dir = opendir_path(&f);
+ if (dir)
+ fd = dirfd(dir);
+ }
+ e = fd < 0 ? errno : 0;
+ if (fd < 0) {
+ if (v)
+ printf("%d/%d: getxattr - open %s failed %d\n",
+ procid, opno, f.path, e);
+ free_pathname(&f);
+ if (dir)
+ closedir(dir);
+ return;
+ }
+ check_cwd();
+
+ /*
+ * If the file/dir has xattrs, pick one randomly, otherwise attempt
+ * to read a xattr that doesn't exist (fgetxattr should fail with
+ * errno set to ENOATTR (61) in this case).
+ */
+ if (fep->xattr_counter > 0)
+ xattr_num = (random() % fep->xattr_counter) + 1;
+ else
+ xattr_num = 0;
+
+ memcpy(name, "user.x", 6);
+ sprintf(name + 6, "%d", xattr_num);
+
+ value_len = fgetxattr(fd, name, NULL, 0);
+ if (value_len < 0) {
+ if (v)
+ printf("%d/%d: getxattr file %s failed %d\n",
+ procid, opno, f.path, errno);
+ goto out;
+ }
+
+ value = malloc(value_len);
+ if (!value) {
+ if (v)
+ printf("%d/%d: getxattr file %s failed to allocate buffer with %d bytes\n",
+ procid, opno, f.path, value_len);
+ goto out;
+ }
+
+ e = fgetxattr(fd, name, value, value_len) < 0 ? errno : 0;
+ if (v)
+ printf("%d/%d: getxattr file %s name %s value length %d %d\n",
+ procid, opno, f.path, name, value_len, e);
+out:
+ free(value);
+ free_pathname(&f);
+ if (dir)
+ closedir(dir);
+ else
+ close(fd);
+}
+
+void
link_f(int opno, long r)
{
int e;
--
2.11.0
