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[CIFS] Make sec=none force an anonymous mount

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We had a customer report that attempting to make CIFS mount with a null
username (i.e. doing an anonymous mount) doesn't work. Looking through the
code, it looks like CIFS expects a NULL username from userspace in order
to trigger an anonymous mount. The mount.cifs code doesn't seem to ever
pass a null username to the kernel, however.

It looks also like the kernel can take a sec=none option, but it only seems
to look at it if the username is already NULL. This seems redundant and
effectively makes sec=none useless.

The following patch makes sec=none force an anonymous mount.

Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Jeff Layton
2007-05-05 03:27:49 +00:00
committed by Steve French
parent 796e5661f6
commit 8426c39c12
3 changed files with 24 additions and 8 deletions
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8
fs/cifs/connect.c
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@@ -1721,12 +1721,12 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
return -EINVAL;
}
if (volume_info.username) {
if (volume_info.nullauth) {
cFYI(1,("null user"));
volume_info.username = NULL;
} else if (volume_info.username) {
/* 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