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/*
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
xrdp: A Remote Desktop Protocol server.
Copyright (C) Jay Sorg 2005-2008
*/
/**
*
* @file scp_v1_mng.c
* @brief scp version 1 implementation - management
* @author Jay Sorg, Simone Fedele
*
*/
#include "sesman.h"
#include "libscp.h"
extern struct config_sesman* g_cfg; /* in sesman.c */
static void parseCommonStates(enum SCP_SERVER_STATES_E e, char* f);
/******************************************************************************/
void DEFAULT_CC
scp_v1_mng_process(struct SCP_CONNECTION* c, struct SCP_SESSION* s)
{
long data;
int retries;
int current_try;
enum SCP_SERVER_STATES_E e;
struct SCP_DISCONNECTED_SESSION* slist = 0;
int scount;
int end = 0;
retries = g_cfg->sec.login_retry;
current_try = retries;
data = auth_userpass(s->username, s->password);
/*LOG_DBG("user: %s\npass: %s", s->username, s->password);*/
if (!data)
{
scp_v1s_mng_deny_connection(c, "Login failed");
log_message(&(g_cfg->log), LOG_LEVEL_INFO,
"[MNG] Login failed for user %s. Connection terminated", s->username);
scp_session_destroy(s);
auth_end(data);
return;
}
/* testing if login is allowed */
if (0 == access_login_mng_allowed(s->username))
{
scp_v1s_mng_deny_connection(c, "Access to Terminal Server not allowed.");
log_message(&(g_cfg->log), LOG_LEVEL_INFO,
"[MNG] User %s not allowed on TS. Connection terminated", s->username);
scp_session_destroy(s);
auth_end(data);
return;
}
e = scp_v1s_mng_allow_connection(c, s);
end = 1;
while (end)
{
switch (e)
{
case SCP_SERVER_STATE_MNG_ACTION:
log_message(&(g_cfg->log), LOG_LEVEL_INFO, "Connection cancelled after session listing");
break;
case SCP_SERVER_STATE_MNG_LISTREQ:
/* list disconnected sessions */
slist = session_get_byuser(NULL, &scount, SESMAN_SESSION_STATUS_ALL);
LOG_DBG(&(g_cfg->log), "sessions on TS: %d (slist: %x)", scount, slist);
if (0 == slist)
{
// e=scp_v1s_connection_error(c, "Internal error");
log_message(&(g_cfg->log), LOG_LEVEL_INFO, "No sessions on Terminal Server");
end = 0;
}
else
{
e = scp_v1s_mng_list_sessions(c, s, scount, slist);
g_free(slist);
}
break;
default:
/* we check the other errors */
parseCommonStates(e, "scp_v1s_mng_list_sessions()");
end = 0;
break;
}
}
/* cleanup */
scp_session_destroy(s);
auth_end(data);
}
static void parseCommonStates(enum SCP_SERVER_STATES_E e, char* f)
{
switch (e)
{
case SCP_SERVER_STATE_VERSION_ERR:
LOG_DBG(&(g_cfg->log), "version error")
case SCP_SERVER_STATE_SIZE_ERR:
/* an unknown scp version was requested, so we shut down the */
/* connection (and log the fact) */
log_message(&(g_cfg->log), LOG_LEVEL_WARNING,
"protocol violation. connection closed.");
break;
case SCP_SERVER_STATE_NETWORK_ERR:
log_message(&(g_cfg->log), LOG_LEVEL_WARNING, "libscp network error.");
break;
case SCP_SERVER_STATE_SEQUENCE_ERR:
log_message(&(g_cfg->log), LOG_LEVEL_WARNING, "libscp sequence error.");
break;
case SCP_SERVER_STATE_INTERNAL_ERR:
/* internal error occurred (eg. malloc() error, ecc.) */
log_message(&(g_cfg->log), LOG_LEVEL_ERROR, "libscp internal error occurred.");
break;
default:
/* dummy: scp_v1s_request_password won't generate any other */
/* error other than the ones before */
log_message(&(g_cfg->log), LOG_LEVEL_ALWAYS, "unknown return from %s", f);
break;
}
}
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