132 lines
3.1 KiB
C
132 lines
3.1 KiB
C
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2015
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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*
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* @file access.c
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* @brief User access control code
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* @author Simone Fedele
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*
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*/
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#if defined(HAVE_CONFIG_H)
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#include <config_ac.h>
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#endif
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#include "sesman.h"
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#include "string_calls.h"
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extern struct config_sesman *g_cfg; /* in sesman.c */
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/******************************************************************************/
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int
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access_login_allowed(const char *user)
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{
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int gid;
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int ok;
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if ((0 == g_strncmp(user, "root", 5)) && (0 == g_cfg->sec.allow_root))
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{
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LOG(LOG_LEVEL_WARNING,
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"ROOT login attempted, but root login is disabled");
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return 0;
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}
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if ((0 == g_cfg->sec.ts_users_enable) && (0 == g_cfg->sec.ts_always_group_check))
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{
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LOG(LOG_LEVEL_INFO, "Terminal Server Users group is disabled, allowing authentication");
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return 1;
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}
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if (0 != g_getuser_info(user, &gid, 0, 0, 0, 0))
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{
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LOG(LOG_LEVEL_ERROR, "Cannot read user info! - login denied");
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return 0;
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}
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if (g_cfg->sec.ts_users == gid)
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{
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LOG(LOG_LEVEL_DEBUG, "ts_users is user's primary group");
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return 1;
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}
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if (0 != g_check_user_in_group(user, g_cfg->sec.ts_users, &ok))
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{
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LOG(LOG_LEVEL_ERROR, "Cannot read group info! - login denied");
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return 0;
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}
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if (ok)
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{
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return 1;
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}
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LOG(LOG_LEVEL_INFO, "login denied for user %s", user);
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return 0;
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}
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/******************************************************************************/
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int
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access_login_mng_allowed(const char *user)
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{
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int gid;
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int ok;
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if ((0 == g_strncmp(user, "root", 5)) && (0 == g_cfg->sec.allow_root))
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{
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LOG(LOG_LEVEL_WARNING,
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"[MNG] ROOT login attempted, but root login is disabled");
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return 0;
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}
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if (0 == g_cfg->sec.ts_admins_enable)
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{
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LOG(LOG_LEVEL_INFO, "[MNG] Terminal Server Admin group is disabled, "
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"allowing authentication");
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return 1;
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}
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if (0 != g_getuser_info(user, &gid, 0, 0, 0, 0))
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{
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LOG(LOG_LEVEL_ERROR, "[MNG] Cannot read user info! - login denied");
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return 0;
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}
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if (g_cfg->sec.ts_admins == gid)
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{
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LOG(LOG_LEVEL_INFO, "[MNG] ts_users is user's primary group");
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return 1;
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}
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if (0 != g_check_user_in_group(user, g_cfg->sec.ts_admins, &ok))
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{
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LOG(LOG_LEVEL_ERROR, "[MNG] Cannot read group info! - login denied");
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return 0;
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}
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if (ok)
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{
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return 1;
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}
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LOG(LOG_LEVEL_INFO, "[MNG] login denied for user %s", user);
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return 0;
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}
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