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/*
* active port forwarder - software for secure forwarding
* Copyright (C) 2003-2007 jeremian <jeremian [at] poczta.fm>
*
* 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 <config.h>
#include "client_remoteadmin.h"
/*
* Function name: client_admin
* Description: This function is responsible for client part of the admin panel.
* Arguments: type - the type of the realm
* master - pointer to the SslFd structure representing the connection with afserver
* buff - buffer which will be used for communication
* connectfd - the optional descriptor which can be used instead of the stdin
* id - the realm's id
* Returns: 0 - connection was closed normally,
* 1 - something went bad.
*/
int
client_admin(char type, SslFd* master, unsigned char* buff, int connectfd, char* id)
{
fd_set rset, allset;
int maxfdp1, n, length, infd;
FILE *outfp, *infp;
buff[0] = AF_S_ADMIN_LOGIN;
SslFd_send_message(type, master, buff, 5);
buff[0] = 0;
SslFd_get_message(type, master, buff, -5);
if ( buff[0] == 0 ) {
aflog(LOG_T_INIT, LOG_I_CRIT,
"Wrong password");
return 1;
}
if ( buff[0] == AF_S_CANT_OPEN ) {
aflog(LOG_T_INIT, LOG_I_CRIT,
"Server is full");
return 1;
}
if ( buff[0] != AF_S_ADMIN_LOGIN ) {
aflog(LOG_T_INIT, LOG_I_CRIT,
"Incompatible server type or server full");
return 1;
}
aflog(LOG_T_MAIN, LOG_I_INFO,
"CLIENT STARTED mode: remote administration");
if (connectfd > 0) {
outfp = fdopen(connectfd, "w");
if (outfp == NULL) {
aflog(LOG_T_INIT, LOG_I_CRIT,
"Error in opening file descriptor for writing");
return 1;
}
infd = connectfd;
}
else {
infd = STDIN_FILENO;
outfp = stdout;
}
infp = fdopen(infd, "r");
if (infp == NULL) {
aflog(LOG_T_INIT, LOG_I_CRIT,
"Error in opening file descriptor for reading");
return 1;
}
length = buff[3];
length = length << 8;
length += buff[4]; /* this is length of message */
n = SslFd_get_message(type, master, buff, length);
buff[n] = 0;
fprintf(outfp, "%s\n", (char*) buff);
fflush(outfp);
FD_ZERO(&allset);
FD_SET(SslFd_get_fd(master), &allset);
FD_SET(infd, &allset);
maxfdp1 = (infd > SslFd_get_fd(master)) ? infd + 1 : SslFd_get_fd(master) + 1;
if (id != NULL) {
buff[0] = AF_S_LOGIN;
buff[1] = buff[2] = 0;
n = strlen(id);
memcpy(&buff[5], id, n);
buff[3] = n >> 8; /* high bits of message length */
buff[4] = n; /* low bits of message length */
SslFd_send_message(type, master, buff, n+5);
aflog(LOG_T_MANAGE, LOG_I_INFO,
"ID SENT: %s", id);
}
while (1) {
rset = allset;
select(maxfdp1, &rset, NULL, NULL, NULL);
if (FD_ISSET(SslFd_get_fd(master), &rset)) {
aflog(LOG_T_MANAGE, LOG_I_DEBUG,
"masterfd: FD_ISSET");
n = SslFd_get_message(type, master, buff, 5);
if (n != 5) {
aflog(LOG_T_MANAGE, LOG_I_ERR,
"FATAL ERROR! (%d)", n);
if (n == -1) {
if (TYPE_IS_SSL(type)) {
get_ssl_error(master, "FE", n);
continue; /* what happened? */
}
}
if (n != 0)
return 1;
}
if (n == 0) { /* server quits -> we do the same... */
aflog(LOG_T_MANAGE, LOG_I_CRIT,
"SERVER: premature quit --> exiting...");
return 1;
}
if (buff[0] == AF_S_CLOSING) {
aflog(LOG_T_MANAGE, LOG_I_CRIT,
"SERVER: CLOSED -> exiting... cg: %ld bytes", getcg());
return 0;
}
if (buff[0] != AF_S_ADMIN_CMD) {
aflog(LOG_T_MANAGE, LOG_I_CRIT,
"SERVER: wrong message --> exiting");
return 1;
}
length = buff[3];
length = length << 8;
length += buff[4]; /* this is length of message */
switch (buff[1]) {
case AF_RA_STATUS_OK: {
aflog(LOG_T_MANAGE, LOG_I_INFO,
"SERVER: cmd successful");
}
case AF_RA_FAILED: {
if (buff[1] == AF_RA_FAILED) {
aflog(LOG_T_MANAGE, LOG_I_INFO,
"SERVER: cmd failed");
}
}
case AF_RA_UNDEFINED: {
if (buff[1] == AF_RA_UNDEFINED) {
aflog(LOG_T_MANAGE, LOG_I_WARNING,
"SERVER: unknown cmd");
}
n = SslFd_get_message(type, master, buff, length);
buff[n] = 0;
fprintf(outfp, "%s", (char*) buff);
fflush(outfp);
break;
}
case AF_RA_KICKED: {
aflog(LOG_T_MANAGE, LOG_I_ERR,
"SERVER: kicked us -> exiting... cg: %ld bytes", getcg());
return 1;
break;
}
default: {
aflog(LOG_T_MANAGE, LOG_I_ERR,
"SERVER: unrecognized message -> exiting... cg: %ld bytes", getcg());
return 1;
}
}
}
if (FD_ISSET(infd, &rset)) {
aflog(LOG_T_MANAGE, LOG_I_DEBUG,
"infd: FD_ISSET");
if (fgets((char*) &buff[5], 8091, infp) == NULL) { /* client quits --> exiting */
aflog(LOG_T_MANAGE, LOG_I_NOTICE,
"CLIENT CLOSED cg: %ld bytes", getcg());
return 0;
}
n = strlen((char*) &buff[5]);
if ((n > 0) && (buff[n+4] == '\n')) {
--n;
}
buff[0] = AF_S_ADMIN_CMD;
buff[1] = AF_RA_CMD;
buff[2] = AF_RA_UNDEFINED;
buff[3] = n >> 8; /* high bits of message length */
buff[4] = n; /* low bits of message length */
SslFd_send_message(type, master, buff, n+5);
}
}
}
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