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authorJeff Layton <jlayton@redhat.com>2011-05-17 06:40:30 -0400
committerAndi Kleen <ak@linux.intel.com>2011-08-01 13:54:48 -0700
commite68fd06bd319088e3fbeb40be74cdd444242cfd6 (patch)
treebb08769c7f24ec14859b1dc4443ab05a389555f0 /fs/cifs
parent2dcdb613c69f16e6c22b05010a92c104b8a8deee (diff)
cifs: add fallback in is_path_accessible for old servers
commit 221d1d797202984cb874e3ed9f1388593d34ee22 upstream. The is_path_accessible check uses a QPathInfo call, which isn't supported by ancient win9x era servers. Fall back to an older SMBQueryInfo call if it fails with the magic error codes. Reported-and-Tested-by: Sandro Bonazzola <sandro.bonazzola@gmail.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/connect.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index a30b080490e..79168612049 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2423,6 +2423,11 @@ is_path_accessible(int xid, struct cifsTconInfo *tcon,
0 /* not legacy */, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ if (rc == -EOPNOTSUPP || rc == -EINVAL)
+ rc = SMBQueryInformation(xid, tcon, full_path, pfile_info,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
kfree(pfile_info);
return rc;
}