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cifs: set domainName when a domain-key is used in multiuser

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[ Upstream commit f2aee329a6 ]

RHBZ: 1710429

When we use a domain-key to authenticate using multiuser we must also set
the domainnmame for the new volume as it will be used and passed to the server
in the NTLMSSP Domain-name.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ronnie Sahlberg
2019-08-22 08:09:50 +10:00
committed by Chris
parent bdf5fc156f
commit 05bb212088
1 changed files with 22 additions and 0 deletions
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22
fs/cifs/connect.c
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@@ -2447,6 +2447,7 @@ static int
cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
{
int rc = 0;
int is_domain = 0;
const char *delim, *payload;
char *desc;
ssize_t len;
@@ -2494,6 +2495,7 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
rc = PTR_ERR(key);
goto out_err;
}
is_domain = 1;
}
down_read(&key->sem);
@@ -2551,6 +2553,26 @@ cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)
goto out_key_put;
}
/*
* If we have a domain key then we must set the domainName in the
* for the request.
*/
if (is_domain && ses->domainName) {
vol->domainname = kstrndup(ses->domainName,
strlen(ses->domainName),
GFP_KERNEL);
if (!vol->domainname) {
cifs_dbg(FYI, "Unable to allocate %zd bytes for "
"domain\n", len);
rc = -ENOMEM;
kfree(vol->username);
vol->username = NULL;
kfree(vol->password);
vol->password = NULL;
goto out_key_put;
}
}
out_key_put:
up_read(&key->sem);
key_put(key);