tunsafe-clang15/wireguard_config.h

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// SPDX-License-Identifier: AGPL-1.0-only
// Copyright (C) 2018 Ludvig Strigeus <info@tunsafe.com>. All Rights Reserved.
#ifndef TINYVPN_TINYVPN_H_
#define TINYVPN_TINYVPN_H_
#include "netapi.h"
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#include "tunsafe_threading.h"
class WireguardProcessor;
class DnsBlocker;
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class DnsResolverCanceller {
public:
DnsResolverCanceller() : cancel_(false) {}
void Cancel();
void Reset() { cancel_ = false; }
bool is_cancelled() { return cancel_; }
public:
bool cancel_;
ConditionVariable condvar_;
};
class DnsResolver {
public:
explicit DnsResolver(DnsBlocker *dns_blocker);
~DnsResolver();
bool Resolve(const char *hostname, IpAddr *result);
void ClearCache();
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void Cancel() { token_.Cancel(); }
void ResetCancel() { token_.Reset(); }
private:
struct Entry {
std::string name;
IpAddr ip;
Entry(const std::string &name, const IpAddr &ip) : name(name), ip(ip) {}
};
std::vector<Entry> cache_;
DnsBlocker *dns_blocker_;
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DnsResolverCanceller token_;
};
class WgConfig {
public:
static bool HandleConfigurationProtocolMessage(WireguardProcessor *proc, const std::string &&message, std::string *result);
private:
static void HandleConfigurationProtocolGet(WireguardProcessor *proc, std::string *result);
};
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bool ParseWireGuardConfigString(WireguardProcessor *wg, char *buf, size_t buf_size, DnsResolver *dns_resolver);
bool ParseWireGuardConfigFile(WireguardProcessor *wg, const char *filename, DnsResolver *dns_resolver);
#define kSizeOfAddress 64
const char *print_ip_prefix(char buf[kSizeOfAddress], int family, const void *ip, int prefixlen);
char *PrintIpAddr(const IpAddr &addr, char buf[kSizeOfAddress]);
char *PrintWgCidrAddr(const WgCidrAddr &addr, char buf[kSizeOfAddress]);
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bool ParseCidrAddr(char *s, WgCidrAddr *out);
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bool ParseSockaddrInWithPort(const char *s, IpAddr *sin, DnsResolver *resolver);
#endif // TINYVPN_TINYVPN_H_