1 files changed, 117 insertions, 0 deletions
diff --git a/source3/lib/util_nttoken.c b/source3/lib/util_nttoken.c
new file mode 100644
index 0000000000..774ef498b7
--- /dev/null
+++ b/source3/lib/util_nttoken.c
@@ -0,0 +1,117 @@
+/* 
+ *  Unix SMB/CIFS implementation.
+ *  Authentication utility functions
+ *  Copyright (C) Andrew Tridgell 1992-1998
+ *  Copyright (C) Andrew Bartlett 2001
+ *  Copyright (C) Jeremy Allison 2000-2001
+ *  Copyright (C) Rafal Szczesniak 2002
+ *  Copyright (C) Volker Lendecke 2006
+ *  Copyright (C) Michael Adam 2007
+ *  Copyright (C) Guenther Deschner 2007
+ *
+ *  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/>.
+ */
+
+/* function(s) moved from auth/auth_util.c to minimize linker deps */
+
+#include "includes.h"
+
+/****************************************************************************
+ Duplicate a SID token.
+****************************************************************************/
+
+NT_USER_TOKEN *dup_nt_token(TALLOC_CTX *mem_ctx, const NT_USER_TOKEN *ptoken)
+{
+	NT_USER_TOKEN *token;
+
+	if (!ptoken)
+		return NULL;
+
+	token = TALLOC_ZERO_P(mem_ctx, NT_USER_TOKEN);
+	if (token == NULL) {
+		DEBUG(0, ("talloc failed\n"));
+		return NULL;
+	}
+
+	if (ptoken->user_sids && ptoken->num_sids) {
+		token->user_sids = (DOM_SID *)talloc_memdup(
+			token, ptoken->user_sids, sizeof(DOM_SID) * ptoken->num_sids );
+
+		if (token->user_sids == NULL) {
+			DEBUG(0, ("talloc_memdup failed\n"));
+			TALLOC_FREE(token);
+			return NULL;
+		}
+		token->num_sids = ptoken->num_sids;
+	}
+	
+	/* copy the privileges; don't consider failure to be critical here */
+	
+	if ( !se_priv_copy( &token->privileges, &ptoken->privileges ) ) {
+		DEBUG(0,("dup_nt_token: Failure to copy SE_PRIV!.  "
+			 "Continuing with 0 privileges assigned.\n"));
+	}
+
+	return token;
+}
+
+/****************************************************************************
+ merge NT tokens
+****************************************************************************/
+
+NTSTATUS merge_nt_token(TALLOC_CTX *mem_ctx,
+			const struct nt_user_token *token_1,
+			const struct nt_user_token *token_2,
+			struct nt_user_token **token_out)
+{
+	struct nt_user_token *token = NULL;
+	NTSTATUS status;
+	int i;
+
+	if (!token_1 || !token_2 || !token_out) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	token = TALLOC_ZERO_P(mem_ctx, struct nt_user_token);
+	NT_STATUS_HAVE_NO_MEMORY(token);
+
+	for (i=0; i < token_1->num_sids; i++) {
+		status = add_sid_to_array_unique(mem_ctx,
+						 &token_1->user_sids[i],
+						 &token->user_sids,
+						 &token->num_sids);
+		if (!NT_STATUS_IS_OK(status)) {
+			TALLOC_FREE(token);
+			return status;
+		}
+	}
+
+	for (i=0; i < token_2->num_sids; i++) {
+		status = add_sid_to_array_unique(mem_ctx,
+						 &token_2->user_sids[i],
+						 &token->user_sids,
+						 &token->num_sids);
+		if (!NT_STATUS_IS_OK(status)) {
+			TALLOC_FREE(token);
+			return status;
+		}
+	}
+
+	se_priv_add(&token->privileges, &token_1->privileges);
+	se_priv_add(&token->privileges, &token_2->privileges);
+
+	*token_out = token;
+
+	return NT_STATUS_OK;
+}