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authorShirish Pargaonkar <shirishpargaonkar@gmail.com>2010-10-21 06:42:55 -0500
committerSteve French <sfrench@us.ibm.com>2010-10-26 18:20:10 +0000
commit21e733930be6458e0c33482b6783e7c15ba984eb (patch)
tree1458ccf45529649267451a7e06fcd25d9c7ab0ac /fs/cifs/cifsproto.h
parent6573e9b73e19c0f6b9dfa2b399267ea0f42d6c6b (diff)
NTLM auth and sign - Allocate session key/client response dynamically
Start calculating auth response within a session. Move/Add pertinet data structures like session key, server challenge and ntlmv2_hash in a session structure. We should do the calculations within a session before copying session key and response over to server data structures because a session setup can fail. Only after a very first smb session succeeds, it copy/make its session key, session key of smb connection. This key stays with the smb connection throughout its life. sequence_number within server is set to 0x2. The authentication Message Authentication Key (mak) which consists of session key followed by client response within structure session_key is now dynamic. Every authentication type allocates the key + response sized memory within its session structure and later either assigns or frees it once the client response is sent and if session's session key becomes connetion's session key. ntlm/ntlmi authentication functions are rearranged. A function named setup_ntlm_resp(), similar to setup_ntlmv2_resp(), replaces function cifs_calculate_session_key(). size of CIFS_SESS_KEY_SIZE is changed to 16, to reflect the byte size of the key it holds. Reviewed-by: Jeff Layton <jlayton@samba.org> Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/cifsproto.h')
-rw-r--r--fs/cifs/cifsproto.h11
1 files changed, 5 insertions, 6 deletions
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index e593c40ba7ba..8c2d0cf1a62f 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -362,13 +362,12 @@ extern int cifs_sign_smb(struct smb_hdr *, struct TCP_Server_Info *, __u32 *);
extern int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *,
__u32 *);
extern int cifs_verify_signature(struct smb_hdr *,
- const struct session_key *session_key,
+ struct TCP_Server_Info *server,
__u32 expected_sequence_number);
-extern int cifs_calculate_session_key(struct session_key *key, const char *rn,
- const char *pass);
-extern void CalcNTLMv2_response(const struct cifsSesInfo *, char *);
-extern int setup_ntlmv2_rsp(struct cifsSesInfo *, char *,
- const struct nls_table *);
+extern void SMBNTencrypt(unsigned char *, unsigned char *, unsigned char *);
+extern int setup_ntlm_response(struct cifsSesInfo *);
+extern void CalcNTLMv2_response(const struct cifsSesInfo *);
+extern int setup_ntlmv2_rsp(struct cifsSesInfo *, const struct nls_table *);
#ifdef CONFIG_CIFS_WEAK_PW_HASH
extern void calc_lanman_hash(const char *password, const char *cryptkey,
bool encrypt, char *lnm_session_key);