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authorSteve French <sfrench@us.ibm.com>2006-12-08 04:14:28 +0000
committerSteve French <sfrench@us.ibm.com>2006-12-08 04:14:28 +0000
commit33ec32fae0e2c4433bfd1e74cbde6cb16604a719 (patch)
treed1752424d29d226e4d23868d186fdb16d66e6f25 /fs/cifs
parentc99767974ebd2a719d849fdeaaa1674456f5283f (diff)
[CIFS] Fix NTLMv2 mounts to Windows servers
Windows servers are pickier about NTLMv2 than Samba. This enables more secure mounts to Windows (not just Samba) ie when "sec=ntlmv2" is specified on the mount. Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/CHANGES3
-rw-r--r--fs/cifs/cifsencrypt.c4
-rw-r--r--fs/cifs/cifspdu.h8
3 files changed, 12 insertions, 3 deletions
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 0b3c37ef52e..3539d6ef961 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -5,7 +5,8 @@ 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). Return error in rename 2nd attempt retry (ie report
if rename by handle also fails, after rename by path fails, we were
-not reporting whether the retry worked or not).
+not reporting whether the retry worked or not). Fix NTLMv2 to
+work to Windows servers (mount with option "sec=ntlmv2").
Version 1.45
------------
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 4bc250b2d9f..fdeda519eac 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -372,8 +372,10 @@ void setup_ntlmv2_rsp(struct cifsSesInfo * ses, char * resp_buf,
buf->time = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
get_random_bytes(&buf->client_chal, sizeof(buf->client_chal));
buf->reserved2 = 0;
- buf->names[0].type = 0;
+ buf->names[0].type = cpu_to_le16(NTLMSSP_DOMAIN_TYPE);
buf->names[0].length = 0;
+ buf->names[1].type = 0;
+ buf->names[1].length = 0;
/* calculate buf->ntlmv2_hash */
rc = calc_ntlmv2_hash(ses, nls_cp);
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 6df9dadba64..068ef51edbf 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -580,6 +580,12 @@ typedef union smb_com_session_setup_andx {
/* format of NLTMv2 Response ie "case sensitive password" hash when NTLMv2 */
+#define NTLMSSP_SERVER_TYPE 1
+#define NTLMSSP_DOMAIN_TYPE 2
+#define NTLMSSP_FQ_DOMAIN_TYPE 3
+#define NTLMSSP_DNS_DOMAIN_TYPE 4
+#define NTLMSSP_DNS_PARENT_TYPE 5
+
struct ntlmssp2_name {
__le16 type;
__le16 length;
@@ -593,7 +599,7 @@ struct ntlmv2_resp {
__le64 time;
__u64 client_chal; /* random */
__u32 reserved2;
- struct ntlmssp2_name names[1];
+ struct ntlmssp2_name names[2];
/* array of name entries could follow ending in minimum 4 byte struct */
} __attribute__((packed));