142 lines
4.4 KiB
C
142 lines
4.4 KiB
C
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2013
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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 scp_v1_mng.c
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* @brief scp version 1 implementation - management
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* @author Jay Sorg, 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 "libscp.h"
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extern struct config_sesman *g_cfg; /* in sesman.c */
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static void parseCommonStates(enum SCP_SERVER_STATES_E e, const char *f);
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/******************************************************************************/
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void
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scp_v1_mng_process(struct SCP_CONNECTION *c, struct SCP_SESSION *s)
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{
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long data;
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enum SCP_SERVER_STATES_E e;
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struct SCP_DISCONNECTED_SESSION *slist = 0;
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int scount;
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int end = 0;
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data = auth_userpass(s->username, s->password,NULL);
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/*LOG_DBG("user: %s\npass: %s", s->username, s->password);*/
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if (!data)
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{
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scp_v1s_mng_deny_connection(c, "Login failed");
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log_message(LOG_LEVEL_INFO,
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"[MNG] Login failed for user %s. Connection terminated", s->username);
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auth_end(data);
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return;
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}
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/* testing if login is allowed */
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if (0 == access_login_mng_allowed(s->username))
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{
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scp_v1s_mng_deny_connection(c, "Access to Terminal Server not allowed.");
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log_message(LOG_LEVEL_INFO,
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"[MNG] User %s not allowed on TS. Connection terminated", s->username);
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auth_end(data);
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return;
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}
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e = scp_v1s_mng_allow_connection(c, s);
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end = 1;
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while (end)
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{
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switch (e)
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{
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case SCP_SERVER_STATE_MNG_ACTION:
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log_message(LOG_LEVEL_INFO, "Connection cancelled after session listing");
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break;
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case SCP_SERVER_STATE_MNG_LISTREQ:
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/* list disconnected sessions */
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slist = session_get_byuser(NULL, &scount, SESMAN_SESSION_STATUS_ALL);
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LOG_DBG("sessions on TS: %d (slist: %x)", scount, slist);
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if (0 == slist)
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{
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// e=scp_v1s_connection_error(c, "Internal error");
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log_message(LOG_LEVEL_INFO, "No sessions on Terminal Server");
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end = 0;
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}
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else
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{
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e = scp_v1s_mng_list_sessions(c, s, scount, slist);
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g_free(slist);
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}
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break;
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default:
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/* we check the other errors */
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parseCommonStates(e, "scp_v1s_mng_list_sessions()");
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end = 0;
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break;
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}
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}
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/* cleanup */
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auth_end(data);
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}
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static void parseCommonStates(enum SCP_SERVER_STATES_E e, const char *f)
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{
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switch (e)
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{
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case SCP_SERVER_STATE_VERSION_ERR:
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LOG_DBG("version error")
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case SCP_SERVER_STATE_SIZE_ERR:
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/* an unknown scp version was requested, so we shut down the */
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/* connection (and log the fact) */
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log_message(LOG_LEVEL_WARNING,
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"protocol violation. connection closed.");
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break;
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case SCP_SERVER_STATE_NETWORK_ERR:
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log_message(LOG_LEVEL_WARNING, "libscp network error.");
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break;
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case SCP_SERVER_STATE_SEQUENCE_ERR:
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log_message(LOG_LEVEL_WARNING, "libscp sequence error.");
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break;
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case SCP_SERVER_STATE_INTERNAL_ERR:
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/* internal error occurred (eg. malloc() error, ecc.) */
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log_message(LOG_LEVEL_ERROR, "libscp internal error occurred.");
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break;
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default:
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/* dummy: scp_v1s_request_password won't generate any other */
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/* error other than the ones before */
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log_message(LOG_LEVEL_ALWAYS, "unknown return from %s", f);
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break;
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}
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}
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