Back out the crazy notion that the NTLMSSP flags actually mean anything...
[jra/samba/.git] / source3 / auth / auth_sam.c
index 24a4d4e4e427ad1dbf6973811ce68da487cbdb3c..107e33c60002e16dccfcf5ec7084ddeaf6a9b1ee 100644 (file)
@@ -27,9 +27,9 @@
 core of smb password checking routine.
 ****************************************************************************/
 static BOOL smb_pwd_check_ntlmv1(DATA_BLOB nt_response,
-                               const uchar *part_passwd,
-                               DATA_BLOB sec_blob,
-                               uint8 user_sess_key[16])
+                                const uchar *part_passwd,
+                                DATA_BLOB sec_blob,
+                                uint8 user_sess_key[16])
 {
        /* Finish the encryption of part_passwd. */
        uchar p24[24];
@@ -41,7 +41,7 @@ static BOOL smb_pwd_check_ntlmv1(DATA_BLOB nt_response,
        }
        
        if (sec_blob.length != 8) {
-               DEBUG(0, ("smb_pwd_check_ntlmv1: incorrect challange size (%d)\n", sec_blob.length));
+               DEBUG(0, ("smb_pwd_check_ntlmv1: incorrect challenge size (%d)\n", sec_blob.length));
                return False;
        }
        
@@ -75,10 +75,10 @@ static BOOL smb_pwd_check_ntlmv1(DATA_BLOB nt_response,
 core of smb password checking routine.
 ****************************************************************************/
 static BOOL smb_pwd_check_ntlmv2(const DATA_BLOB ntv2_response,
-                               const uchar *part_passwd,
-                               const DATA_BLOB sec_blob,
-                               const char *user, const char *domain,
-                               uint8 user_sess_key[16])
+                                const uchar *part_passwd,
+                                const DATA_BLOB sec_blob,
+                                const char *user, const char *domain,
+                                uint8 user_sess_key[16])
 {
        /* Finish the encryption of part_passwd. */
        uchar kr[16];
@@ -132,14 +132,15 @@ static BOOL smb_pwd_check_ntlmv2(const DATA_BLOB ntv2_response,
  Do a specific test for an smb password being correct, given a smb_password and
  the lanman and NT responses.
 ****************************************************************************/
-static NTSTATUS sam_password_ok(SAM_ACCOUNT *sampass, 
+static NTSTATUS sam_password_ok(const struct auth_context *auth_context,
+                               TALLOC_CTX *mem_ctx,
+                               SAM_ACCOUNT *sampass, 
                                const auth_usersupplied_info *user_info, 
-                               const auth_authsupplied_info *auth_info,
                                uint8 user_sess_key[16])
 {
        uint16 acct_ctrl;
        const uint8 *nt_pw, *lm_pw;
-       uint32 ntlmssp_flags;
+       uint32 auth_flags;
 
        acct_ctrl = pdb_get_acct_ctrl(sampass);
        if (acct_ctrl & ACB_PWNOTREQ) 
@@ -159,83 +160,83 @@ static NTSTATUS sam_password_ok(SAM_ACCOUNT *sampass,
        nt_pw = pdb_get_nt_passwd(sampass);
        lm_pw = pdb_get_lanman_passwd(sampass);
        
-       ntlmssp_flags = user_info->ntlmssp_flags;
+       auth_flags = user_info->auth_flags;
 
        if (nt_pw == NULL) {
-               DEBUG(3,("smb_password_ok: NO NT password stored for user %s.\n", 
+               DEBUG(3,("sam_password_ok: NO NT password stored for user %s.\n", 
                         pdb_get_username(sampass)));
                /* No return, we want to check the LM hash below in this case */
-               ntlmssp_flags &= (~(NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_NTLM2));
+               auth_flags &= (~(AUTH_FLAG_NTLMv2_RESP |  AUTH_FLAG_NTLM_RESP));
        }
        
-       if (ntlmssp_flags & NTLMSSP_NEGOTIATE_NTLM2) {
+       if (auth_flags & AUTH_FLAG_NTLMv2_RESP) {
                /* We have the NT MD4 hash challenge available - see if we can
                   use it (ie. does it exist in the smbpasswd file).
                */
-               DEBUG(4,("smb_password_ok: Checking NTLMv2 password\n"));
+               DEBUG(4,("sam_password_ok: Checking NTLMv2 password\n"));
                if (smb_pwd_check_ntlmv2( user_info->nt_resp, 
-                                         nt_pw, auth_info->challange, 
+                                         nt_pw, auth_context->challenge, 
                                          user_info->smb_name.str, 
                                          user_info->client_domain.str,
                                          user_sess_key))
                {
                        return NT_STATUS_OK;
                } else {
-                       DEBUG(3,("smb_password_ok: NTLMv2 password check failed\n"));
+                       DEBUG(3,("sam_password_ok: NTLMv2 password check failed\n"));
                        return NT_STATUS_WRONG_PASSWORD;
                }
-       } else if (ntlmssp_flags & NTLMSSP_NEGOTIATE_NTLM) {
+       } else if (auth_flags & AUTH_FLAG_NTLM_RESP) {
                if (lp_ntlm_auth()) {                           
                        /* We have the NT MD4 hash challenge available - see if we can
                           use it (ie. does it exist in the smbpasswd file).
                        */
-                       DEBUG(4,("smb_password_ok: Checking NT MD4 password\n"));
+                       DEBUG(4,("sam_password_ok: Checking NT MD4 password\n"));
                        if (smb_pwd_check_ntlmv1(user_info->nt_resp, 
-                                                nt_pw, auth_info->challange,
+                                                nt_pw, auth_context->challenge,
                                                 user_sess_key)) 
                        {
                                return NT_STATUS_OK;
                        } else {
-                               DEBUG(3,("smb_password_ok: NT MD4 password check failed for user %s\n",pdb_get_username(sampass)));
+                               DEBUG(3,("sam_password_ok: NT MD4 password check failed for user %s\n",pdb_get_username(sampass)));
                                return NT_STATUS_WRONG_PASSWORD;
                        }
                } else {
-                       DEBUG(2,("smb_password_ok: NTLMv1 passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));                   
+                       DEBUG(2,("sam_password_ok: NTLMv1 passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));                   
                                /* No return, we want to check the LM hash below in this case */
                }
        }
        
        if (lm_pw == NULL) {
-               DEBUG(3,("smb_password_ok: NO LanMan password set for user %s (and no NT password supplied)\n",pdb_get_username(sampass)));
-               ntlmssp_flags &= (~NTLMSSP_NEGOTIATE_OEM);              
+               DEBUG(3,("sam_password_ok: NO LanMan password set for user %s (and no NT password supplied)\n",pdb_get_username(sampass)));
+               auth_flags &= (~AUTH_FLAG_LM_RESP);             
        }
        
-       if (ntlmssp_flags & NTLMSSP_NEGOTIATE_OEM) {
+       if (auth_flags & AUTH_FLAG_LM_RESP) {
                
                if (user_info->lm_resp.length != 24) {
-                       DEBUG(2,("smb_password_ok: invalid LanMan password length (%d) for user %s\n", 
+                       DEBUG(2,("sam_password_ok: invalid LanMan password length (%d) for user %s\n", 
                                 user_info->nt_resp.length, pdb_get_username(sampass)));                
                }
                
                if (!lp_lanman_auth()) {
-                       DEBUG(3,("smb_password_ok: Lanman passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));                   
+                       DEBUG(3,("sam_password_ok: Lanman passwords NOT PERMITTED for user %s\n",pdb_get_username(sampass)));                   
                        return NT_STATUS_LOGON_FAILURE;
                }
                
-               DEBUG(4,("smb_password_ok: Checking LM password\n"));
+               DEBUG(4,("sam_password_ok: Checking LM password\n"));
                if (smb_pwd_check_ntlmv1(user_info->lm_resp, 
-                                        lm_pw, auth_info->challange,
+                                        lm_pw, auth_context->challenge,
                                         user_sess_key)) 
                {
                        return NT_STATUS_OK;
                } else {
-                       DEBUG(4,("smb_password_ok: LM password check failed for user %s\n",pdb_get_username(sampass)));
+                       DEBUG(4,("sam_password_ok: LM password check failed for user %s\n",pdb_get_username(sampass)));
                        return NT_STATUS_WRONG_PASSWORD;
                } 
        }
 
        /* Should not be reached, but if they send nothing... */
-       DEBUG(3,("smb_password_ok: NEITHER LanMan nor NT password supplied for user %s\n",pdb_get_username(sampass)));
+       DEBUG(3,("sam_password_ok: NEITHER LanMan nor NT password supplied for user %s\n",pdb_get_username(sampass)));
        return NT_STATUS_WRONG_PASSWORD;
 }
 
@@ -243,13 +244,15 @@ static NTSTATUS sam_password_ok(SAM_ACCOUNT *sampass,
  Do a specific test for a SAM_ACCOUNT being vaild for this connection 
  (ie not disabled, expired and the like).
 ****************************************************************************/
-static NTSTATUS sam_account_ok(SAM_ACCOUNT *sampass, const auth_usersupplied_info *user_info)
+static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
+                              SAM_ACCOUNT *sampass, 
+                              const auth_usersupplied_info *user_info)
 {
        uint16  acct_ctrl = pdb_get_acct_ctrl(sampass);
        char *workstation_list;
        time_t kickoff_time;
        
-       DEBUG(4,("smb_password_ok: Checking SMB password for user %s\n",pdb_get_username(sampass)));
+       DEBUG(4,("sam_account_ok: Checking SMB password for user %s\n",pdb_get_username(sampass)));
 
        /* Quit if the account was disabled. */
        if (acct_ctrl & ACB_DISABLED) {
@@ -286,7 +289,7 @@ static NTSTATUS sam_account_ok(SAM_ACCOUNT *sampass, const auth_usersupplied_inf
 
        /* Test workstation. Workstation list is comma separated. */
 
-       workstation_list = strdup(pdb_get_workstations(sampass));
+       workstation_list = talloc_strdup(mem_ctx, pdb_get_workstations(sampass));
 
        if (!workstation_list) return NT_STATUS_NO_MEMORY;
 
@@ -305,25 +308,22 @@ static NTSTATUS sam_account_ok(SAM_ACCOUNT *sampass, const auth_usersupplied_inf
                        }
                }
                
-               SAFE_FREE(workstation_list);            
                if (invalid_ws) 
                        return NT_STATUS_INVALID_WORKSTATION;
-       } else {
-               SAFE_FREE(workstation_list);
        }
 
        if (acct_ctrl & ACB_DOMTRUST) {
-               DEBUG(2,("session_trust_account: Domain trust account %s denied by server\n", pdb_get_username(sampass)));
+               DEBUG(2,("sam_account_ok: Domain trust account %s denied by server\n", pdb_get_username(sampass)));
                return NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT;
        }
        
        if (acct_ctrl & ACB_SVRTRUST) {
-               DEBUG(2,("session_trust_account: Server trust account %s denied by server\n", pdb_get_username(sampass)));
+               DEBUG(2,("sam_account_ok: Server trust account %s denied by server\n", pdb_get_username(sampass)));
                return NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT;
        }
        
        if (acct_ctrl & ACB_WSTRUST) {
-               DEBUG(4,("session_trust_account: Wksta trust account %s denied by server\n", pdb_get_username(sampass)));
+               DEBUG(4,("sam_account_ok: Wksta trust account %s denied by server\n", pdb_get_username(sampass)));
                return NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT;
        }
        
@@ -337,10 +337,11 @@ SMB hash supplied in the user_info structure
 return an NT_STATUS constant.
 ****************************************************************************/
 
-NTSTATUS check_sam_security(void *my_private_dat,
-                           const auth_usersupplied_info *user_info, 
-                           const auth_authsupplied_info *auth_info,
-                           auth_serversupplied_info **server_info)
+static NTSTATUS check_sam_security(const struct auth_context *auth_context,
+                                  void *my_private_data, 
+                                  TALLOC_CTX *mem_ctx,
+                                  const auth_usersupplied_info *user_info, 
+                                  auth_serversupplied_info **server_info)
 {
        SAM_ACCOUNT *sampass=NULL;
        BOOL ret;
@@ -348,8 +349,8 @@ NTSTATUS check_sam_security(void *my_private_dat,
        uint8 user_sess_key[16];
        const uint8* lm_hash;
 
-       if (!user_info || !auth_info) {
-               return NT_STATUS_LOGON_FAILURE;
+       if (!user_info || !auth_context) {
+               return NT_STATUS_UNSUCCESSFUL;
        }
 
        if (!pdb_init_sam(&sampass)) {
@@ -369,14 +370,14 @@ NTSTATUS check_sam_security(void *my_private_dat,
                return NT_STATUS_NO_SUCH_USER;
        }
 
-       nt_status = sam_password_ok(sampass, user_info, auth_info, user_sess_key);
+       nt_status = sam_password_ok(auth_context, mem_ctx, sampass, user_info, user_sess_key);
 
        if (!NT_STATUS_IS_OK(nt_status)) {
                pdb_free_sam(&sampass);
                return nt_status;
        }
 
-       nt_status = sam_account_ok(sampass, user_info);
+       nt_status = sam_account_ok(mem_ctx, sampass, user_info);
        
        if (!NT_STATUS_IS_OK(nt_status)) {
                pdb_free_sam(&sampass);
@@ -398,9 +399,10 @@ NTSTATUS check_sam_security(void *my_private_dat,
        return nt_status;
 }
 
-BOOL auth_init_sam(auth_methods **auth_method) 
+/* module initialisation */
+BOOL auth_init_sam(struct auth_context *auth_context, auth_methods **auth_method) 
 {
-       if (!make_auth_methods(auth_method)) {
+       if (!make_auth_methods(auth_context, auth_method)) {
                return False;
        }
 
@@ -409,4 +411,41 @@ BOOL auth_init_sam(auth_methods **auth_method)
 }
 
 
+/****************************************************************************
+Check SAM security (above) but with a few extra checks.
+****************************************************************************/
+
+static NTSTATUS check_samstrict_security(const struct auth_context *auth_context,
+                                        void *my_private_data, 
+                                        TALLOC_CTX *mem_ctx,
+                                        const auth_usersupplied_info *user_info, 
+                                        auth_serversupplied_info **server_info)
+{
+
+       if (!user_info || !auth_context) {
+               return NT_STATUS_LOGON_FAILURE;
+       }
+
+       /* If we are a domain member, we must not 
+          attempt to check the password locally,
+          unless it is one of our aliases. */
+       
+       if (!is_netbios_alias_or_name(user_info->domain.str)) {
+               return NT_STATUS_NO_SUCH_USER;
+       }
+       
+       return check_sam_security(auth_context, my_private_data, mem_ctx, user_info, server_info);
+}
+
+/* module initialisation */
+BOOL auth_init_samstrict(struct auth_context *auth_context, auth_methods **auth_method) 
+{
+       if (!make_auth_methods(auth_context, auth_method)) {
+               return False;
+       }
+
+       (*auth_method)->auth = check_samstrict_security;
+       return True;
+}
+