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79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
#ifndef REDSOCKS_H_WED_JAN_24_22_17_11_2007
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#define REDSOCKS_H_WED_JAN_24_22_17_11_2007
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/* $Id$ */
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#include <sys/time.h>
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#include <sys/types.h>
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#include <arpa/inet.h>
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#include <event.h>
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#include "list.h"
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#if defined __GNUC__
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#define PACKED __attribute__((packed))
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#else
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#error Unknown compiler, modify types.h for it
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#endif
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struct redsocks_client_t;
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typedef struct relay_subsys_t {
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char *name;
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size_t payload_len; // size of relay-specific data in client section
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evbuffercb readcb;
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evbuffercb writecb;
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void (*init)(struct redsocks_client_t *client);
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// connect_relay (if any) is called instead of redsocks_connect_relay after client connection acceptance
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void (*connect_relay)(struct redsocks_client_t *client);
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} relay_subsys;
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typedef struct redsocks_config_t {
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struct sockaddr_in bindaddr;
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struct sockaddr_in relayaddr;
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char *type;
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char *login;
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char *password;
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} redsocks_config;
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typedef struct redsocks_instance_t {
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redsocks_config config;
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struct event listener;
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list_head clients;
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relay_subsys *relay_ss;
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} redsocks_instance;
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typedef struct redsocks_client_t {
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list_head list;
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redsocks_instance *instance;
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struct bufferevent *client;
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struct bufferevent *relay;
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struct sockaddr_in clientaddr;
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struct sockaddr_in destaddr;
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int state;
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} redsocks_client;
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void redsocks_drop_client(redsocks_client *client);
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void redsocks_start_relay(redsocks_client *client);
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typedef int (*size_comparator)(size_t a, size_t b);
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int sizes_equal(size_t a, size_t b);
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int sizes_greater_equal(size_t a, size_t b);
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/** helper for functions when we expect ONLY reply of some size and anything else is error
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*/
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int redsocks_read_expected(redsocks_client *client, struct evbuffer *input, void *data, size_comparator comparator, size_t expected);
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typedef struct evbuffer* (*redsocks_message_maker)(redsocks_client *client);
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struct evbuffer *mkevbuffer(void *data, size_t len);
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void redsocks_write_helper_ex(
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struct bufferevent *buffev, redsocks_client *client,
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redsocks_message_maker mkmessage, int state, size_t wm_low, size_t wm_high);
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void redsocks_write_helper(
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struct bufferevent *buffev, redsocks_client *client,
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redsocks_message_maker mkmessage, int state, size_t wm_only);
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/* vim:set tabstop=4 softtabstop=4 shiftwidth=4: */
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/* vim:set foldmethod=marker foldlevel=32 foldmarker={,}: */
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#endif /* REDSOCKS_H_WED_JAN_24_22_17_11_2007 */
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