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/*
* 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 = (struct dom_sid *)talloc_memdup(
token, ptoken->user_sids, sizeof(struct 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;
}
/*******************************************************************
Check if this struct security_ace has a SID in common with the token.
********************************************************************/
bool token_sid_in_ace(const NT_USER_TOKEN *token, const struct security_ace *ace)
{
size_t i;
for (i = 0; i < token->num_sids; i++) {
if (sid_equal(&ace->trustee, &token->user_sids[i]))
return true;
}
return false;
}
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