mirror of
https://github.com/ntop/ntopng.git
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66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
/*
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*
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* (C) 2013-17 - ntop.org
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef _MDNS_H_
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#define _MDNS_H_
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#include "ntop_includes.h"
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class NetworkInterface;
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/* ******************************* */
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class MDNS {
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private:
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int udp_sock, batch_udp_sock;
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u_int32_t gatewayIPv4;
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bool sentAnyQuery;
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u_int16_t buildMDNSRequest(char *query, u_int8_t query_type,
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char *mdnsbuf, u_int mdnsbuf_len,
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u_int16_t tid);
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u_int16_t prepareIPv4ResolveQuery(u_int32_t ipv4addr /* network byte order */,
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char *mdnsbuf, u_int mdnsbuf_len,
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u_int16_t tid = 0);
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u_int16_t prepareAnyQuery(char *query, char *mdnsbuf, u_int mdnsbuf_len,
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u_int16_t tid = 0);
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char* decodePTRResponse(char *mdnsbuf, u_int mdnsbuf_len,
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char *buf, u_int buf_len,
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u_int32_t *resolved_ip);
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char* decodeAnyResponse(char *mdnsbuf, u_int mdnsbuf_len,
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char *buf, u_int buf_len);
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char* decodeNetBIOS(u_char *buf, u_int buf_len, char *out, u_int out_len);
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public:
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MDNS(NetworkInterface *iface);
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~MDNS();
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/* Batch interface (via Lua) */
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bool sendAnyQuery(char *targetIPv4, char *query);
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bool queueResolveIPv4(u_int32_t ipv4addr, bool alsoUseGatewayDNS);
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void fetchResolveResponses(lua_State* vm, int32_t timeout_sec);
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/* Resolve the IPv4 immediately discarding */
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char* resolveIPv4(u_int32_t ipv4addr /* network byte order */, char *buf, u_int buf_len, u_int timeout_sec);
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};
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#endif /* _MDNS_H_ */
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