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/*
* ProFTPD - mod_proxy sessions
* Copyright (c) 2012-2021 TJ Saunders
*
* 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., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
*
* As a special exemption, TJ Saunders and other respective copyright holders
* give permission to link this program with OpenSSL, and distribute the
* resulting executable, without including the source code for OpenSSL in the
* source distribution.
*/
#ifndef MOD_PROXY_SESSION_H
#define MOD_PROXY_SESSION_H
#include "mod_proxy.h"
struct proxy_conn;
struct proxy_session {
struct pool_rec *pool;
int connect_timeout;
int connect_timerno;
int linger_timeout;
/* Frontend connection */
conn_t *frontend_ctrl_conn;
conn_t *frontend_data_conn;
volatile int frontend_sess_flags;
const pr_netaddr_t *frontend_data_addr;
/* Backend connection */
conn_t *backend_ctrl_conn;
conn_t *backend_data_conn;
volatile int backend_sess_flags;
const pr_netaddr_t *backend_data_addr;
/* Address for connections to/from destination server. May be null. */
const pr_netaddr_t *src_addr;
const struct proxy_conn *dst_pconn;
/* Address of the destination server. May be null. */
const pr_netaddr_t *dst_addr;
array_header *other_addrs;
/* Which protocol are we proxying? */
int use_ftp, use_ssh;
/* Features supported by backend server. */
pr_table_t *backend_features;
/* Data transfer pool, for things like the frontend/backend address
* objects.
*/
pool *dataxfer_pool;
/* Data transfer policy: PASV, EPSV, PORT, EPRT, or client. */
int dataxfer_policy;
/* Directory list policy: LIST, or client. */
int dirlist_policy;
unsigned long dirlist_opts;
void *dirlist_ctx;
};
/* Zero indicates "do what the client does". */
#define PROXY_SESS_DATA_TRANSFER_POLICY_DEFAULT 0
#define PROXY_SESS_DIRECTORY_LIST_POLICY_DEFAULT 0
#define PROXY_SESS_DIRECTORY_LIST_POLICY_LIST 1
/* Default MaxLoginAttempts */
#define PROXY_SESS_MAX_LOGIN_ATTEMPTS 3
const struct proxy_session *proxy_session_alloc(pool *p);
int proxy_session_free(pool *p, const struct proxy_session *proxy_sess);
int proxy_session_reset_dataxfer(struct proxy_session *proxy_sess);
int proxy_session_check_password(pool *p, const char *user, const char *passwd);
int proxy_session_setup_env(pool *p, const char *user, int flags);
#define PROXY_SESSION_FL_CHECK_LOGIN_ACL 0x00001
#endif /* MOD_PROXY_SESSION_H */
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