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/*
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* SSLsplit - transparent SSL/TLS interception
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* Copyright (c) 2009-2016, Daniel Roethlisberger <daniel@roe.ch>
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* All rights reserved.
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* http://www.roe.ch/SSLsplit
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef PROXY_H
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#define PROXY_H
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#include "opts.h"
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#include "attrib.h"
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#include "pxythrmgr.h"
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#include <pthread.h>
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#include <uuid.h>
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typedef struct proxy_ctx proxy_ctx_t;
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typedef struct pxy_conn_ctx pxy_conn_ctx_t;
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typedef struct pxy_conn_child_info pxy_conn_child_info_t;
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/*
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* Listener context.
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*/
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typedef struct proxy_listener_ctx {
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pxy_thrmgr_ctx_t *thrmgr;
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proxyspec_t *spec;
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opts_t *opts;
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struct evconnlistener *evcl;
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struct proxy_listener_ctx *next;
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int clisock;
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} proxy_listener_ctx_t;
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typedef struct proxy_conn_meta_ctx {
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pxy_thr_ctx_t *thr;
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uuid_t *uuid;
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proxy_listener_ctx_t *lctx;
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evutil_socket_t fd;
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pxy_conn_ctx_t *parent_ctx;
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evutil_socket_t src_fd;
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evutil_socket_t e2src_fd;
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evutil_socket_t dst_fd;
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unsigned int src_eof : 1;
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unsigned int e2src_eof : 1;
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unsigned int dst_eof : 1;
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// Fd of the listener event for the children
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evutil_socket_t child_fd;
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struct evconnlistener *child_evcl;
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// SSL proxy return address: The IP:port address the children are listening to
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char *child_addr;
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// Child list of the conn
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pxy_conn_ctx_t *child_list;
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// Used to print child info, never deleted until the conn is freed
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pxy_conn_child_info_t *child_info_list;
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evutil_socket_t e2dst_fd;
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evutil_socket_t dst2_fd;
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unsigned int e2dst_eof : 1;
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unsigned int dst2_eof : 1;
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// Whether the conn has any child yet, set upon entry to child listener cb
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unsigned int initialized : 1;
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unsigned int child_count;
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/* server name indicated by client in SNI TLS extension */
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char *sni;
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/* original destination address, family and certificate */
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struct sockaddr_storage addr;
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socklen_t addrlen;
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// Index of the thread the conn is attached to
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int thridx;
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// Last access time, to determine expired conns
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// Updated on entry to callback functions
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time_t access_time;
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// Per-thread conn list
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proxy_conn_meta_ctx_t *next;
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// Expired conns are link-listed using this pointer
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proxy_conn_meta_ctx_t *next_expired;
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} proxy_conn_meta_ctx_t;
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proxy_ctx_t * proxy_new(opts_t *, int) NONNULL(1) MALLOC;
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void proxy_run(proxy_ctx_t *) NONNULL(1);
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void proxy_loopbreak(proxy_ctx_t *) NONNULL(1);
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void proxy_free(proxy_ctx_t *) NONNULL(1);
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void
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proxy_listener_errorcb(struct evconnlistener *listener, UNUSED void *ctx);
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#endif /* !PROXY_H */
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/* vim: set noet ft=c: */
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