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/* netuser.c - LOGIN/LOGOUT/USERNAME/PASSWORD/MASTER[PRIMARY] handlers for upsd
Copyright (C) 2003 Russell Kroll <rkroll@exploits.org>
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "common.h"
#include "upsd.h"
#include "sstate.h"
#include "state.h"
#include "neterr.h"
#include "user.h" /* for user_checkaction */
#include "netuser.h"
/* LOGIN <ups> */
void net_login(nut_ctype_t *client, size_t numarg, const char **arg)
{
upstype_t *ups;
if (numarg != 1) {
send_err(client, NUT_ERR_INVALID_ARGUMENT);
return;
}
if (client->loginups != NULL) {
upslogx(LOG_INFO, "Client %s@%s tried to login twice", client->username, client->addr);
send_err(client, NUT_ERR_ALREADY_LOGGED_IN);
return;
}
/* make sure we got a valid UPS name */
ups = get_ups_ptr(arg[0]);
if (!ups) {
send_err(client, NUT_ERR_UNKNOWN_UPS);
return;
}
/* make sure this is a valid user */
if (!user_checkaction(client->username, client->password, "LOGIN")) {
upsdebugx(3, "%s: not a valid user: %s",
__func__, client->username);
send_err(client, NUT_ERR_ACCESS_DENIED);
return;
}
ups->numlogins++;
client->loginups = xstrdup(ups->name);
upslogx(LOG_INFO, "User %s@%s logged into UPS [%s]%s", client->username, client->addr,
client->loginups, client->ssl ? " (SSL)" : "");
sendback(client, "OK\n");
}
void net_logout(nut_ctype_t *client, size_t numarg, const char **arg)
{
NUT_UNUSED_VARIABLE(arg);
if (numarg != 0) {
send_err(client, NUT_ERR_INVALID_ARGUMENT);
return;
}
if (client->loginups != NULL) {
upslogx(LOG_INFO, "User %s@%s logged out from UPS [%s]%s", client->username, client->addr,
client->loginups, client->ssl ? " (SSL)" : "");
}
sendback(client, "OK Goodbye\n");
client->last_heard = 0;
}
/* NOTE: Protocol updated since NUT 2.8.0 to handle master/primary
* and API bumped, to rename/alias the routine.
*/
static int do_net_primary(nut_ctype_t *client, size_t numarg, const char **arg)
{
upstype_t *ups;
if (numarg != 1) {
send_err(client, NUT_ERR_INVALID_ARGUMENT);
return -1;
}
ups = get_ups_ptr(arg[0]);
if (!ups) {
send_err(client, NUT_ERR_UNKNOWN_UPS);
return -1;
}
/* make sure this user is allowed to do PRIMARY or MASTER */
if (!user_checkaction(client->username, client->password, "PRIMARY")
&& !user_checkaction(client->username, client->password, "MASTER")
) {
send_err(client, NUT_ERR_ACCESS_DENIED);
return -1;
}
/* this is just an access level check */
/* sendback() will be worded by caller below */
return 0;
}
/* MASTER <upsname> (deprecated) */
void net_master(nut_ctype_t *client, size_t numarg, const char **arg) {
/* Allow existing binaries linked against this file to still work */
upsdebugx(1,
"WARNING: Client %s@%s "
"requested MASTER level for device %s - "
"which is deprecated in favor of PRIMARY "
"since NUT 2.8.0",
client->username, client->addr,
(numarg > 0) ? arg[0] : "<null>");
if (0 == do_net_primary(client, numarg, arg)) {
sendback(client, "OK MASTER-GRANTED\n");
}
}
/* PRIMARY <upsname> (since NUT 2.8.0) */
void net_primary(nut_ctype_t *client, size_t numarg, const char **arg)
{
if (0 == do_net_primary(client, numarg, arg)) {
sendback(client, "OK PRIMARY-GRANTED\n");
}
}
/* USERNAME <username> */
void net_username(nut_ctype_t *client, size_t numarg, const char **arg)
{
if (numarg != 1) {
send_err(client, NUT_ERR_INVALID_ARGUMENT);
return;
}
if (client->username != NULL) {
upslogx(LOG_INFO, "Client %s@%s tried to set a username twice",
client->username, client->addr);
send_err(client, NUT_ERR_ALREADY_SET_USERNAME);
return;
}
client->username = xstrdup(arg[0]);
sendback(client, "OK\n");
}
/* PASSWORD <password> */
void net_password(nut_ctype_t *client, size_t numarg, const char **arg)
{
if (numarg != 1) {
send_err(client, NUT_ERR_INVALID_ARGUMENT);
return;
}
if (client->password != NULL) {
if (client->username)
upslogx(LOG_INFO, "Client %s@%s tried to set a password twice",
client->username, client->addr);
else
upslogx(LOG_INFO, "Client on %s tried to set a password twice",
client->addr);
send_err(client, NUT_ERR_ALREADY_SET_PASSWORD);
return;
}
client->password = xstrdup(arg[0]);
sendback(client, "OK\n");
}
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