fsstress: add operation for listing xattrs from files and directories

The previous patches added support for operations to set, get and delete
xattrs on regular files and directories, this patch just adds an operation
to list the xattrs of a file/directory.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

diff --git a/ltp/fsstress.c b/ltp/fsstress.c
index 74100948b2033353f01130821f827390b98b7c19..450cf4f1832f22c1bfa2f8975f546c01f1f3c351 100644 (file)
--- a/ltp/fsstress.c
+++ b/ltp/fsstress.c
@@ -71,6 +71,7 @@ typedef enum {
        OP_GETDENTS,
        OP_GETFATTR,
        OP_LINK,
        OP_GETDENTS,
        OP_GETFATTR,
        OP_LINK,

+       OP_LISTFATTR,

        OP_MKDIR,
        OP_MKNOD,
        OP_MREAD,
        OP_MKDIR,
        OP_MKNOD,
        OP_MREAD,


@@ -188,6 +189,7 @@ void        getattr_f(int, long);
 void   getdents_f(int, long);
 void   getfattr_f(int, long);
 void   link_f(int, long);
 void   getdents_f(int, long);
 void   getfattr_f(int, long);
 void   link_f(int, long);

+void   listfattr_f(int, long);

 void   mkdir_f(int, long);
 void   mknod_f(int, long);
 void   mread_f(int, long);
 void   mkdir_f(int, long);
 void   mknod_f(int, long);
 void   mread_f(int, long);


@@ -244,6 +246,8 @@ opdesc_t    ops[] = {
        /* get extended attribute */
        { OP_GETFATTR, "getfattr", getfattr_f, 1, 0 },
        { OP_LINK, "link", link_f, 1, 1 },
        /* get extended attribute */
        { OP_GETFATTR, "getfattr", getfattr_f, 1, 0 },
        { OP_LINK, "link", link_f, 1, 1 },

+       /* list extent attributes */
+       { OP_LISTFATTR, "listfattr", listfattr_f, 1, 0 },

        { OP_MKDIR, "mkdir", mkdir_f, 2, 1 },
        { OP_MKNOD, "mknod", mknod_f, 2, 1 },
        { OP_MREAD, "mread", mread_f, 2, 0 },
        { OP_MKDIR, "mkdir", mkdir_f, 2, 1 },
        { OP_MKNOD, "mknod", mknod_f, 2, 1 },
        { OP_MREAD, "mread", mread_f, 2, 0 },


@@ -3722,6 +3726,56 @@ link_f(int opno, long r)
        free_pathname(&f);
 }
 
        free_pathname(&f);
 }
 

+void
+listfattr_f(int opno, long r)
+{
+       fent_t          *fep;
+       int             e;
+       pathname_t      f;
+       int             v;
+       char            *buffer = NULL;
+       int             buffer_len;
+
+       init_pathname(&f);
+       if (!get_fname(FT_REGFILE | FT_DIRm, r, &f, NULL, &fep, &v)) {
+               if (v)
+                       printf("%d/%d: listfattr - no filename\n", procid, opno);
+               goto out;
+       }
+       check_cwd();
+
+       e = listxattr(f.path, NULL, 0);
+       if (e < 0) {
+               if (v)
+                       printf("%d/%d: listfattr %s failed %d\n",
+                              procid, opno, f.path, errno);
+               goto out;
+       }
+       buffer_len = e;
+       if (buffer_len == 0) {
+               if (v)
+                       printf("%d/%d: listfattr %s - has no extended attributes\n",
+                              procid, opno, f.path);
+               goto out;
+       }
+
+       buffer = malloc(buffer_len);
+       if (!buffer) {
+               if (v)
+                       printf("%d/%d: listfattr %s failed to allocate buffer with %d bytes\n",
+                              procid, opno, f.path, buffer_len);
+               goto out;
+       }
+
+       e = listxattr(f.path, buffer, buffer_len) < 0 ? errno : 0;
+       if (v)
+               printf("%d/%d: listfattr %s buffer length %d %d\n",
+                      procid, opno, f.path, buffer_len, e);
+out:
+       free(buffer);
+       free_pathname(&f);
+}
+

 void
 mkdir_f(int opno, long r)
 {
 void
 mkdir_f(int opno, long r)
 {