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[CIFS] Allow null user connections

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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>
This commit is contained in:
Steve French 2006-10-30 21:46:13 +00:00
parent 7ca85ba752
commit 4b952a9b08
2 changed files with 9 additions and 1 deletions
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3
fs/cifs/CHANGES
View file

@ -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
------------

7
fs/cifs/connect.c
View file

@ -822,10 +822,13 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol)
} 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 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
/* 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