[CIFS] NTLMv2 support part 3

Response struct filled in exacty for 16 byte hash which we need to check
more to make sure it works.

Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 15 insertions, 2 deletions

diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 24ab770f60dc..09f94617e534 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -27,6 +27,7 @@
 #include "cifs_unicode.h"
 #include "cifsproto.h"
 #include <linux/ctype.h>
+#include <linux/random.h>
 
 /* Calculate and return the CIFS signature based on the mac key and the smb pdu */
 /* the 16 byte signature must be allocated by the caller  */
@@ -304,10 +305,22 @@ void calc_lanman_hash(struct cifsSesInfo * ses, char * lnm_session_key)
 }
 #endif /* CIFS_WEAK_PW_HASH */
 
+void setup_ntlmv2_rsp(const struct cifsSesInfo * ses, char * resp_buf)
+{
+        struct ntlmv2_resp * buf = (struct ntlmv2_resp *)resp_buf;
+
+        buf->blob_signature = cpu_to_le32(0x00000101);
+        buf->reserved = 0;
+        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].length = 0;
+        /* calculate buf->ntlmv2_hash */
+}
+
 void CalcNTLMv2_response(const struct cifsSesInfo * ses,char * v2_session_response)
 {
-        /* BB FIXME  -  update struct ntlmv2_response and change calling convention
-           of this function */ 
         struct HMACMD5Context context;
         memcpy(v2_session_response + 8, ses->server->cryptKey,8);
         /* gen_blob(v2_session_response + 16); */