From d343409d6b86a0b17f722287d1bc160372f0f7ef Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@samba.org>
Date: Tue, 1 Mar 2011 11:49:20 +0100
Subject: [PATCH] s3-rpc_client: Added DCERPC_AUTH_TYPE_NCALRPC bind.
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

Signed-off-by: Günther Deschner <gd@samba.org>
---
 librpc/idl/dcerpc.idl               |  3 ++-
 source3/librpc/rpc/dcerpc_helpers.c |  5 ++++-
 source3/rpc_client/cli_pipe.c       | 33 +++++++++++++++++++++++++++++++++
 source3/rpc_client/cli_pipe.h       |  3 +++
 4 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/librpc/idl/dcerpc.idl b/librpc/idl/dcerpc.idl
index b7ba4326889..86f22a4b8c8 100644
--- a/librpc/idl/dcerpc.idl
+++ b/librpc/idl/dcerpc.idl
@@ -179,7 +179,8 @@ interface dcerpc
 		DCERPC_AUTH_TYPE_MSN      = 18,
 		DCERPC_AUTH_TYPE_DIGEST   = 21,
 		DCERPC_AUTH_TYPE_SCHANNEL = 68,
-		DCERPC_AUTH_TYPE_MSMQ     = 100
+		DCERPC_AUTH_TYPE_MSMQ     = 100,
+		DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM = 200
 	} dcerpc_AuthType;
 
 	typedef [enum8bit] enum {
diff --git a/source3/librpc/rpc/dcerpc_helpers.c b/source3/librpc/rpc/dcerpc_helpers.c
index f45ee941c1f..7520d767ba1 100644
--- a/source3/librpc/rpc/dcerpc_helpers.c
+++ b/source3/librpc/rpc/dcerpc_helpers.c
@@ -754,7 +754,8 @@ NTSTATUS dcerpc_add_auth_footer(struct pipe_auth_data *auth,
 	DATA_BLOB auth_blob;
 	NTSTATUS status;
 
-	if (auth->auth_type == DCERPC_AUTH_TYPE_NONE) {
+	if (auth->auth_type == DCERPC_AUTH_TYPE_NONE ||
+	    auth->auth_type == DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM) {
 		return NT_STATUS_OK;
 	}
 
@@ -792,6 +793,7 @@ NTSTATUS dcerpc_add_auth_footer(struct pipe_auth_data *auth,
 	/* Generate any auth sign/seal and add the auth footer. */
 	switch (auth->auth_type) {
 	case DCERPC_AUTH_TYPE_NONE:
+	case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM:
 		status = NT_STATUS_OK;
 		break;
 	case DCERPC_AUTH_TYPE_SPNEGO:
@@ -914,6 +916,7 @@ NTSTATUS dcerpc_check_auth(struct pipe_auth_data *auth,
 
 	switch (auth->auth_type) {
 	case DCERPC_AUTH_TYPE_NONE:
+	case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM:
 		return NT_STATUS_OK;
 
 	case DCERPC_AUTH_TYPE_SPNEGO:
diff --git a/source3/rpc_client/cli_pipe.c b/source3/rpc_client/cli_pipe.c
index aac47f34a83..26a00547c37 100644
--- a/source3/rpc_client/cli_pipe.c
+++ b/source3/rpc_client/cli_pipe.c
@@ -1194,6 +1194,12 @@ static NTSTATUS create_rpc_bind_req(TALLOC_CTX *mem_ctx,
 		}
 		break;
 
+	case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM:
+		auth_token = data_blob_talloc(mem_ctx,
+					      "NCALRPC_AUTH_TOKEN",
+					      18);
+		break;
+
 	case DCERPC_AUTH_TYPE_NONE:
 		break;
 
@@ -1721,6 +1727,7 @@ static void rpc_pipe_bind_step_one_done(struct tevent_req *subreq)
 	switch(pauth->auth_type) {
 
 	case DCERPC_AUTH_TYPE_NONE:
+	case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM:
 	case DCERPC_AUTH_TYPE_SCHANNEL:
 		/* Bind complete. */
 		tevent_req_done(req);
@@ -1759,6 +1766,7 @@ static void rpc_pipe_bind_step_one_done(struct tevent_req *subreq)
 	switch(pauth->auth_type) {
 
 	case DCERPC_AUTH_TYPE_NONE:
+	case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM:
 	case DCERPC_AUTH_TYPE_SCHANNEL:
 		/* Bind complete. */
 		tevent_req_done(req);
@@ -2243,6 +2251,30 @@ bool rpccli_get_pwd_hash(struct rpc_pipe_client *rpc_cli, uint8_t nt_hash[16])
 	return true;
 }
 
+NTSTATUS rpccli_ncalrpc_bind_data(TALLOC_CTX *mem_ctx,
+				  struct pipe_auth_data **presult)
+{
+	struct pipe_auth_data *result;
+
+	result = talloc(mem_ctx, struct pipe_auth_data);
+	if (result == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	result->auth_type = DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM;
+	result->auth_level = DCERPC_AUTH_LEVEL_NONE;
+
+	result->user_name = talloc_strdup(result, "");
+	result->domain = talloc_strdup(result, "");
+	if ((result->user_name == NULL) || (result->domain == NULL)) {
+		TALLOC_FREE(result);
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	*presult = result;
+	return NT_STATUS_OK;
+}
+
 NTSTATUS rpccli_anon_bind_data(TALLOC_CTX *mem_ctx,
 			       struct pipe_auth_data **presult)
 {
@@ -3259,6 +3291,7 @@ NTSTATUS cli_get_session_key(TALLOC_CTX *mem_ctx,
 		sk = gse_get_session_key(mem_ctx, gse_ctx);
 		make_dup = false;
 		break;
+	case DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM:
 	case DCERPC_AUTH_TYPE_NONE:
 		sk = data_blob_const(a->user_session_key.data,
 				     a->user_session_key.length);
diff --git a/source3/rpc_client/cli_pipe.h b/source3/rpc_client/cli_pipe.h
index b627c0af21e..30c1bad797a 100644
--- a/source3/rpc_client/cli_pipe.h
+++ b/source3/rpc_client/cli_pipe.h
@@ -50,6 +50,9 @@ bool rpccli_is_connected(struct rpc_pipe_client *rpc_cli);
 
 bool rpccli_get_pwd_hash(struct rpc_pipe_client *cli, uint8_t nt_hash[16]);
 
+NTSTATUS rpccli_ncalrpc_bind_data(TALLOC_CTX *mem_ctx,
+				  struct pipe_auth_data **presult);
+
 NTSTATUS rpccli_anon_bind_data(TALLOC_CTX *mem_ctx,
 			       struct pipe_auth_data **presult);
 
-- 
2.11.4.GIT