zapret/tpws/params.h

#pragma once

#include <net/if.h>
#include <stdbool.h>
#include <stdint.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <time.h>
#include "tpws.h"
#include "pools.h"
#include "helpers.h"
#include "protocol.h"

#define HOSTLIST_AUTO_FAIL_THRESHOLD_DEFAULT	3
#define	HOSTLIST_AUTO_FAIL_TIME_DEFAULT 	60

#define L7_PROTO_HTTP	1
#define L7_PROTO_TLS	2
#define L7_PROTO_UNKNOWN 0x80000000

enum bindll { unwanted=0, no, prefer, force };

#define MAX_BINDS	32
struct bind_s
{
	char bindaddr[64],bindiface[IF_NAMESIZE];
	bool bind_if6;
	enum bindll bindll;
	int bind_wait_ifup,bind_wait_ip,bind_wait_ip_ll;
};

enum log_target { LOG_TARGET_CONSOLE=0, LOG_TARGET_FILE, LOG_TARGET_SYSLOG };

struct desync_profile
{
	int n;	// number of the profile

	bool hostcase, hostdot, hosttab, hostnospace, methodspace, methodeol, unixeol, domcase;
	int hostpad;
	char hostspell[4];
	enum httpreqpos split_http_req;
	enum tlspos tlsrec;
	int tlsrec_pos;
	enum tlspos split_tls;
	bool split_any_protocol;
	int split_pos;
	bool disorder, disorder_http, disorder_tls;
	bool oob, oob_http, oob_tls;
	uint8_t oob_byte;

	int mss;

	bool tamper_start_n,tamper_cutoff_n;
	unsigned int tamper_start,tamper_cutoff;
	
	bool filter_ipv4,filter_ipv6;
	port_filter pf_tcp;
	uint32_t filter_l7;	// L7_PROTO_* bits
	ipset ips,ips_exclude;
	struct str_list_head ipset_files, ipset_exclude_files;

	strpool *hostlist, *hostlist_exclude;
	struct str_list_head hostlist_files, hostlist_exclude_files;
	char hostlist_auto_filename[PATH_MAX];
	int hostlist_auto_fail_threshold, hostlist_auto_fail_time;
	time_t hostlist_auto_mod_time;
	hostfail_pool *hostlist_auto_fail_counters;
};

#define PROFILE_IPSETS_EMPTY(dp) (IPSET_EMPTY(&dp->ips) && IPSET_EMPTY(&dp->ips_exclude))

struct desync_profile_list {
	struct desync_profile dp;
	LIST_ENTRY(desync_profile_list) next;
};
LIST_HEAD(desync_profile_list_head, desync_profile_list);
struct desync_profile_list *dp_list_add(struct desync_profile_list_head *head);
void dp_list_destroy(struct desync_profile_list_head *head);
bool dp_list_have_autohostlist(struct desync_profile_list_head *head);

struct params_s
{
	int debug;
	enum log_target debug_target;
	char debug_logfile[PATH_MAX];

	struct bind_s binds[MAX_BINDS];
	int binds_last;
	bool bind_wait_only;
	uint16_t port;
	struct sockaddr_in connect_bind4;
	struct sockaddr_in6 connect_bind6;
	char connect_bind6_ifname[IF_NAMESIZE];

	uint8_t proxy_type;
	bool no_resolve;
	bool skip_nodelay;
	bool droproot;
	uid_t uid;
	gid_t gid;
	bool daemon;
	char pidfile[256];
	int maxconn,resolver_threads,maxfiles,max_orphan_time;
	int local_rcvbuf,local_sndbuf,remote_rcvbuf,remote_sndbuf;
#if defined(__linux__) || defined(__APPLE__)
	int tcp_user_timeout_local,tcp_user_timeout_remote;
#endif

#if defined(BSD)
	bool pf_enable;
#endif
#ifdef SPLICE_PRESENT
	bool nosplice;
#endif

	int ttl_default;
	char hostlist_auto_debuglog[PATH_MAX];

	bool tamper; // any tamper option is set
	bool tamper_lim; // tamper-start or tamper-cutoff set in any profile
	struct desync_profile_list_head desync_profiles;
};

extern struct params_s params;

int DLOG(const char *format, int level, ...);
int DLOG_CONDUP(const char *format, ...);
int DLOG_ERR(const char *format, ...);
int DLOG_PERROR(const char *s);
int HOSTLIST_DEBUGLOG_APPEND(const char *format, ...);

#define VPRINT(format, ...) DLOG(format, 1, ##__VA_ARGS__)
#define DBGPRINT(format, ...) DLOG(format, 2, ##__VA_ARGS__)