s3-dcerpc: add server helpers for ntlmssp auth

diff --git a/source3/Makefile.in b/source3/Makefile.in
index 914bd6ccf2a35ac2b8e4908b4f8312cfeaf00d41..a7e4f9c9f847228b4d2bfeaee1beab837d4970f6 100644 (file)
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -711,8 +711,10 @@ RPC_NCACN_NP = rpc_server/srv_pipe_register.o rpc_server/rpc_ncacn_np.o \
 
 RPC_SERVICE = rpc_server/rpc_server.o
 
+RPC_CRYPTO = rpc_server/dcesrv_ntlmssp.o
+
 RPC_PIPE_OBJ = rpc_server/srv_pipe.o rpc_server/srv_pipe_hnd.o \
-              $(RPC_NCACN_NP) $(RPC_SERVICE)
+              $(RPC_NCACN_NP) $(RPC_SERVICE) $(RPC_CRYPTO)
 
 RPC_RPCECHO_OBJ = rpc_server/srv_echo_nt.o librpc/gen_ndr/srv_echo.o
 

diff --git a/source3/rpc_server/dcesrv_ntlmssp.c b/source3/rpc_server/dcesrv_ntlmssp.c
new file mode 100644 (file)
index 0000000..8f3cc06
--- /dev/null
+++ b/source3/rpc_server/dcesrv_ntlmssp.c
@@ -0,0 +1,134 @@
+/*
+ *  NTLMSSP Acceptor
+ *  DCERPC Server functions
+ *  Copyright (C) Simo Sorce 2010.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "includes.h"
+#include "../libcli/auth/ntlmssp.h"
+#include "ntlmssp_wrap.h"
+
+NTSTATUS ntlmssp_server_auth_start(TALLOC_CTX *mem_ctx,
+                                  bool do_sign,
+                                  bool do_seal,
+                                  bool is_dcerpc,
+                                  DATA_BLOB *token_in,
+                                  DATA_BLOB *token_out,
+                                  struct auth_ntlmssp_state **ctx)
+{
+       struct auth_ntlmssp_state *a = NULL;
+       NTSTATUS status;
+
+       status = auth_ntlmssp_start(&a);
+       if (!NT_STATUS_IS_OK(status)) {
+               DEBUG(0, (__location__ ": auth_ntlmssp_start failed: %s\n",
+                         nt_errstr(status)));
+               return status;
+       }
+
+       /* Clear flags, then set them according to requested flags */
+       auth_ntlmssp_and_flags(a, ~(NTLMSSP_NEGOTIATE_SIGN |
+                                       NTLMSSP_NEGOTIATE_SEAL));
+
+       if (do_sign) {
+               auth_ntlmssp_or_flags(a, NTLMSSP_NEGOTIATE_SIGN);
+       }
+       if (do_seal) {
+               /* Always implies both sign and seal for ntlmssp */
+               auth_ntlmssp_or_flags(a, NTLMSSP_NEGOTIATE_SIGN |
+                                        NTLMSSP_NEGOTIATE_SEAL);
+       }
+
+       status = auth_ntlmssp_update(a, *token_in, token_out);
+       if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+               DEBUG(0, (__location__ ": auth_ntlmssp_update failed: %s\n",
+                         nt_errstr(status)));
+               goto done;
+       }
+
+       /* Make sure data is bound to the memctx, to be freed the caller */
+       talloc_steal(mem_ctx, token_out->data);
+       /* steal ntlmssp context too */
+       *ctx = talloc_move(mem_ctx, &a);
+
+       status = NT_STATUS_OK;
+
+done:
+       if (!NT_STATUS_IS_OK(status)) {
+               TALLOC_FREE(a);
+       }
+
+       return status;
+}
+
+NTSTATUS ntlmssp_server_step(struct auth_ntlmssp_state *ctx,
+                            TALLOC_CTX *mem_ctx,
+                            DATA_BLOB *token_in,
+                            DATA_BLOB *token_out)
+{
+       NTSTATUS status;
+
+       /* this has to be done as root in order to verify the password */
+       become_root();
+       status = auth_ntlmssp_update(ctx, *token_in, token_out);
+       unbecome_root();
+
+       /* put the output token data on the given mem_ctx */
+       talloc_steal(mem_ctx, token_out->data);
+
+       return status;
+}
+
+NTSTATUS ntlmssp_server_check_flags(struct auth_ntlmssp_state *ctx,
+                                   bool do_sign, bool do_seal)
+{
+       if (do_sign && !auth_ntlmssp_negotiated_sign(ctx)) {
+               DEBUG(1, (__location__ "Integrity was requested but client "
+                         "failed to negotiate signing.\n"));
+               return NT_STATUS_ACCESS_DENIED;
+       }
+
+       if (do_seal && !auth_ntlmssp_negotiated_seal(ctx)) {
+               DEBUG(1, (__location__ "Privacy was requested but client "
+                         "failed to negotiate sealing.\n"));
+               return NT_STATUS_ACCESS_DENIED;
+       }
+
+       return NT_STATUS_OK;
+}
+
+NTSTATUS ntlmssp_server_get_user_info(struct auth_ntlmssp_state *ctx,
+                                     TALLOC_CTX *mem_ctx,
+                                     struct auth_serversupplied_info **server_info)
+{
+       NTSTATUS status;
+
+       status = auth_ntlmssp_steal_server_info(mem_ctx, ctx, server_info);
+       if (!NT_STATUS_IS_OK(status)) {
+               DEBUG(1, (__location__ ": Failed to get authenticated user "
+                         "info: %s\n", nt_errstr(status)));
+               return status;
+       }
+
+       DEBUG(5, (__location__ "OK: user: %s domain: %s workstation: %s\n",
+                 auth_ntlmssp_get_username(ctx),
+                 auth_ntlmssp_get_domain(ctx),
+                 auth_ntlmssp_get_client(ctx)));
+
+       return NT_STATUS_OK;
+}
+

diff --git a/source3/rpc_server/dcesrv_ntlmssp.h b/source3/rpc_server/dcesrv_ntlmssp.h
new file mode 100644 (file)
index 0000000..ddb38f6
--- /dev/null
+++ b/source3/rpc_server/dcesrv_ntlmssp.h
@@ -0,0 +1,42 @@
+/*
+ *  NTLMSSP Acceptor
+ *  DCERPC Server functions
+ *  Copyright (C) Simo Sorce 2010.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _DCESRV_NTLMSSP_H_
+#define _DCESRV_NTLMSSP_H_
+
+struct auth_ntlmssp_state;
+
+NTSTATUS ntlmssp_server_auth_start(TALLOC_CTX *mem_ctx,
+                                  bool do_sign,
+                                  bool do_seal,
+                                  bool is_dcerpc,
+                                  DATA_BLOB *token_in,
+                                  DATA_BLOB *token_out,
+                                  struct auth_ntlmssp_state **ctx);
+NTSTATUS ntlmssp_server_step(struct auth_ntlmssp_state *ctx,
+                            TALLOC_CTX *mem_ctx,
+                            DATA_BLOB *token_in,
+                            DATA_BLOB *token_out);
+NTSTATUS ntlmssp_server_check_flags(struct auth_ntlmssp_state *ctx,
+                                   bool do_sign, bool do_seal);
+NTSTATUS ntlmssp_server_get_user_info(struct auth_ntlmssp_state *ctx,
+                                     TALLOC_CTX *mem_ctx,
+                                     struct auth_serversupplied_info **server_info);
+
+#endif /* _DCESRV_NTLMSSP_H_ */