SSLproxy/extra/lp/pxythrmgr.h

101 lines
3.3 KiB
C

/*-
* SSLsplit - transparent SSL/TLS interception
* https://www.roe.ch/SSLsplit
*
* Copyright (c) 2009-2018, Daniel Roethlisberger <daniel@roe.ch>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef PXYTHRMGR_H
#define PXYTHRMGR_H
#include "opts.h"
#include "attrib.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <event2/event.h>
#include <event2/dns.h>
#include <pthread.h>
extern int descriptor_table_size;
#define FD_RESERVE 10
typedef struct pxy_conn_ctx pxy_conn_ctx_t;
typedef struct pxy_thrmgr_ctx pxy_thrmgr_ctx_t;
typedef struct pxy_thr_ctx {
pthread_t thr;
int thridx;
pxy_thrmgr_ctx_t *thrmgr;
size_t load;
struct event_base *evbase;
int running;
// Per-thread locking is necessary during connection setup and termination
// to prevent multithreading issues between thrmgr thread and conn handling threads
pthread_mutex_t mutex;
// Statistics
evutil_socket_t max_fd;
size_t max_load;
size_t errors;
size_t set_watermarks;
size_t unset_watermarks;
long long unsigned int intif_in_bytes;
long long unsigned int intif_out_bytes;
long long unsigned int extif_in_bytes;
long long unsigned int extif_out_bytes;
// Each stats has an id, incremented on each stats print
unsigned short stats_id;
// Used to print statistics, compared against stats_period
unsigned int timeout_count;
// List of active connections on the thread
pxy_conn_ctx_t *conns;
} pxy_thr_ctx_t;
struct pxy_thrmgr_ctx {
int num_thr;
opts_t *opts;
pxy_thr_ctx_t **thr;
// Provides unique conn id, always goes up, never down
// There is no risk of collision if/when it rolls back to 0
long long unsigned int conn_count;
};
pxy_thrmgr_ctx_t * pxy_thrmgr_new(opts_t *) MALLOC;
int pxy_thrmgr_run(pxy_thrmgr_ctx_t *) NONNULL(1) WUNRES;
void pxy_thrmgr_free(pxy_thrmgr_ctx_t *) NONNULL(1);
void pxy_thrmgr_add_conn(pxy_conn_ctx_t *) NONNULL(1);
void pxy_thrmgr_attach(pxy_conn_ctx_t *) NONNULL(1);
void pxy_thrmgr_detach_unlocked(pxy_conn_ctx_t *) NONNULL(1);
void pxy_thrmgr_detach(pxy_conn_ctx_t *) NONNULL(1);
#endif /* !PXYTHRMGR_H */
/* vim: set noet ft=c: */