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authorSimo Sorce <idra@samba.org>2010-09-01 15:50:06 -0400
committerGünther Deschner <gd@samba.org>2010-09-23 10:53:42 -0700
commitbbf535764b39941e64664b51562cb1525a99a959 (patch)
tree645fb5fd5659069937fb6906f439fd9c4b930efb
parent4194383cfe151aa57e0b288c77a113c5922eb019 (diff)
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s3-dcerpc: add server helpers for ntlmssp auth
Signed-off-by: Günther Deschner <gd@samba.org>
-rw-r--r--source3/Makefile.in4
-rw-r--r--source3/rpc_server/dcesrv_ntlmssp.c134
-rw-r--r--source3/rpc_server/dcesrv_ntlmssp.h42
3 files changed, 179 insertions, 1 deletions
diff --git a/source3/Makefile.in b/source3/Makefile.in
index 6beced2580..ed5aaf225c 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -712,8 +712,10 @@ 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
index 0000000000..ac13607473
--- /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 "rpc_server/dcesrv_ntlmssp.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
index 0000000000..ddb38f69df
--- /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_ */