[CIFS] Allow null user connections
Some servers are configured to only allow null user mounts for
guest access. Allow nul user (anonymous) mounts e.g.
mount -t cifs //server/share /mnt -o username=
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 1eb9a2e..50afab8 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,6 +1,9 @@
Version 1.46
------------
Support deep tree mounts. Better support OS/2, Win9x (DOS) time stamps.
+Allow null user to be specified on mount ("username="). Do not return
+EINVAL on readdir when filldir fails due to overwritten blocksize
+(fixes FC problem)
Version 1.45
------------
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 4093d53..71f7791 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -822,10 +822,13 @@
} else if (strnicmp(data, "nouser_xattr",12) == 0) {
vol->no_xattr = 1;
} else if (strnicmp(data, "user", 4) == 0) {
- if (!value || !*value) {
+ if (!value) {
printk(KERN_WARNING
"CIFS: invalid or missing username\n");
return 1; /* needs_arg; */
+ } else if(!*value) {
+ /* null user, ie anonymous, authentication */
+ vol->nullauth = 1;
}
if (strnlen(value, 200) < 200) {
vol->username = value;
@@ -1642,6 +1645,8 @@
/* BB fixme parse for domain name here */
cFYI(1, ("Username: %s ", volume_info.username));
+ } else if (volume_info.nullauth) {
+ cFYI(1,("null user"));
} else {
cifserror("No username specified");
/* In userspace mount helper we can get user name from alternate