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188c8c461e
The source ip is sometimes set as ipv6, and this tricks code thinking the flow is ipv6. This caused a crash in FlowProfiles, where get_ipv6 was called on an ipv4 address
86 lines
3.9 KiB
C++
86 lines
3.9 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 _IP_ADDRESS_H_
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#define _IP_ADDRESS_H_
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#include "ntop_includes.h"
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struct ipAddress {
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u_int8_t ipVersion:3 /* Either 4 or 6 */,
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localHost:1, privateIP:1, multicastIP:1, broadcastIP:1,
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notUsed:1 /* Future use */;
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union {
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struct ndpi_in6_addr ipv6;
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u_int32_t ipv4; /* Host byte code */
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} ipType;
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};
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/* **************************************** */
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class IpAddress {
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private:
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struct ipAddress addr;
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u_int32_t ip_key;
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char* intoa(char* buf, u_short bufLen, u_int8_t bitmask);
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void checkIP();
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void compute_key();
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public:
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IpAddress();
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bool isEmpty();
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inline void reset() { memset(&addr, 0, sizeof(addr)); }
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inline bool isIPv4() { return((addr.ipVersion == 4) ? true : false); }
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inline bool isIPv6() { return((addr.ipVersion == 6) ? true : false); }
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inline u_int32_t get_ipv4() { return((addr.ipVersion == 4) ? addr.ipType.ipv4 : 0); }
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inline struct ndpi_in6_addr* get_ipv6() { return((addr.ipVersion == 6) ? &addr.ipType.ipv6 : NULL); }
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inline struct ipAddress* getIP() { return(&addr); };
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inline bool equal(u_int32_t ipv4_addr) { if((addr.ipVersion == 4) && (addr.ipType.ipv4 == ipv4_addr)) return(true); else return(false); };
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inline bool equal(struct ndpi_in6_addr *ip6_addr) { if((addr.ipVersion == 6) && (memcmp(&addr.ipType.ipv6, ip6_addr, sizeof(struct ndpi_in6_addr)) == 0)) return(true); else return(false); };
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inline bool equal(IpAddress *_ip) { return(this->compare(_ip) == 0); };
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int compare(IpAddress *ip);
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inline u_int32_t key() { return(ip_key); };
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inline void set(u_int32_t _ipv4) { addr.ipVersion = 4, addr.ipType.ipv4 = _ipv4; compute_key(); }
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inline void set(struct ndpi_in6_addr *_ipv6) { addr.ipVersion = 6, memcpy(&addr.ipType.ipv6, _ipv6, sizeof(struct ndpi_in6_addr));
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addr.privateIP = false; compute_key(); }
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inline void set(IpAddress *ip) { memcpy(&addr, &ip->addr, sizeof(struct ipAddress)); ip_key = ip->ip_key; };
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inline void set(struct ipAddress *ip) { memcpy(&addr, ip, sizeof(struct ipAddress)); compute_key(); };
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void set(char *ip);
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inline bool isPrivateAddress() { return(addr.privateIP); };
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inline bool isMulticastAddress() { return(addr.multicastIP); };
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inline bool isBroadcastAddress() { return(addr.broadcastIP); };
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inline u_int8_t getVersion() { return(addr.ipVersion); };
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inline void setVersion(u_int8_t version) { addr.ipVersion = version; };
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char* print(char *str, u_int str_len, u_int8_t bitmask = 0xFF);
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char* printMask(char *str, u_int str_len, bool isLocalIP);
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bool isLocalHost(int16_t *network_id);
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bool isLocalInterfaceAddress();
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char* serialize();
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json_object* getJSONObject();
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bool match(AddressTree *tree);
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void* findAddress(AddressTree *ptree);
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void dump();
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};
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#endif /* _IP_ADDRESS_H_ */
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