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s3-dcerpc: add server helpers for ntlmssp auth

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Signed-off-by: Günther Deschner <gd@samba.org>
This commit is contained in:
Simo Sorce 2010-09-01 15:50:06 -04:00 committed by Günther Deschner
parent 4194383cfe
commit bbf535764b
3 changed files with 179 additions and 1 deletions
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4
source3/Makefile.in
View File

@ -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

134
source3/rpc_server/dcesrv_ntlmssp.c Normal file
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@ -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;
}

42
source3/rpc_server/dcesrv_ntlmssp.h Normal file
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@ -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_ */