/*************************************************************************** * portlist.h -- Functions for manipulating various lists of ports * * maintained internally by Nmap. * * * ***********************IMPORTANT NMAP LICENSE TERMS************************ * * * The Nmap Security Scanner is (C) 1996-2012 Insecure.Com LLC. Nmap is * * also a registered trademark of Insecure.Com LLC. This program is free * * software; you may redistribute and/or modify it under the terms of the * * GNU General Public License as published by the Free Software * * Foundation; Version 2 with the clarifications and exceptions described * * below. This guarantees your right to use, modify, and redistribute * * this software under certain conditions. If you wish to embed Nmap * * technology into proprietary software, we sell alternative licenses * * (contact sales@insecure.com). Dozens of software vendors already * * license Nmap technology such as host discovery, port scanning, OS * * detection, version detection, and the Nmap Scripting Engine. * * * * Note that the GPL places important restrictions on "derived works", yet * * it does not provide a detailed definition of that term. To avoid * * misunderstandings, we interpret that term as broadly as copyright law * * allows. 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See the Nmap * * license file for more details (it's in a COPYING file included with * * Nmap, and also available from https://svn.nmap.org/nmap/COPYING * * * ***************************************************************************/ /* $Id$ */ #ifndef PORTLIST_H #define PORTLIST_H #include "nbase.h" #ifndef NOLUA #include "nse_main.h" #endif #include "portreasons.h" /* port states */ #define PORT_UNKNOWN 0 #define PORT_CLOSED 1 #define PORT_OPEN 2 #define PORT_FILTERED 3 #define PORT_TESTING 4 #define PORT_FRESH 5 #define PORT_UNFILTERED 6 #define PORT_OPENFILTERED 7 /* Like udp/fin/xmas/null/ipproto scan with no response */ #define PORT_CLOSEDFILTERED 8 /* Idle scan */ #define PORT_HIGHEST_STATE 9 /* ***IMPORTANT -- BUMP THIS UP WHEN STATES ARE ADDED *** */ #define TCPANDUDPANDSCTP IPPROTO_MAX #define UDPANDSCTP (IPPROTO_MAX + 1) enum serviceprobestate { PROBESTATE_INITIAL=1, // No probes started yet PROBESTATE_NULLPROBE, // Is working on the NULL Probe PROBESTATE_MATCHINGPROBES, // Is doing matching probe(s) PROBESTATE_NONMATCHINGPROBES, // The above failed, is checking nonmatches PROBESTATE_FINISHED_HARDMATCHED, // Yay! Found a match PROBESTATE_FINISHED_SOFTMATCHED, // Well, a soft match anyway PROBESTATE_FINISHED_NOMATCH, // D'oh! Failed to find the service. PROBESTATE_FINISHED_TCPWRAPPED, // We think the port is blocked via tcpwrappers PROBESTATE_EXCLUDED, // The port has been excluded from the scan PROBESTATE_INCOMPLETE // failed to complete (error, host timeout, etc.) }; enum service_detection_type { SERVICE_DETECTION_TABLE, SERVICE_DETECTION_PROBED }; enum service_tunnel_type { SERVICE_TUNNEL_NONE, SERVICE_TUNNEL_SSL }; // Move some popular TCP ports to the beginning of the portlist, because // that can speed up certain scans. You should have already done any port // randomization, this should prevent the ports from always coming out in the // same order. void random_port_cheat(u16 *ports, int portcount); struct serviceDeductions { serviceDeductions(); void populateFullVersionString(char *buf, size_t n) const; char *name; // will be NULL if can't determine // Confidence is a number from 0 (least confident) to 10 (most // confident) expressing how accurate the service detection is // likely to be. int name_confidence; // Any of these 6 can be NULL if we weren't able to determine it char *product; char *version; char *extrainfo; char *hostname; char *ostype; char *devicetype; std::vector cpe; // SERVICE_TUNNEL_NONE or SERVICE_TUNNEL_SSL enum service_tunnel_type service_tunnel; // if we should give the user a service fingerprint to submit, here it is. Otherwise NULL. char *service_fp; enum service_detection_type dtype; // definition above }; class Port { friend class PortList; public: Port(); void freeService(bool del_service); void freeScriptResults(void); void getNmapServiceName(char *namebuf, int buflen) const; u16 portno; u8 proto; u8 state; state_reason_t reason; #ifndef NOLUA ScriptResults scriptResults; #endif private: /* This is allocated only on demand by PortList::setServiceProbeResults Pto save memory for the many closed or filtered ports that don't need it. */ serviceDeductions *service; }; /* Needed enums to address some arrays. This values * should never be used directly. Use INPROTO2PORTLISTPROTO macro */ enum portlist_proto { // PortList Protocols PORTLIST_PROTO_TCP = 0, PORTLIST_PROTO_UDP = 1, PORTLIST_PROTO_SCTP = 2, PORTLIST_PROTO_IP = 3, PORTLIST_PROTO_MAX = 4 }; class PortList { public: PortList(); ~PortList(); /* Set ports that will be scanned for each protocol. This function * must be called before any PortList object will be created. */ static void initializePortMap(int protocol, u16 *ports, int portcount); /* Free memory used by port_map. It should be done somewhere before quitting*/ static void freePortMap(); void setDefaultPortState(u8 protocol, int state); void setPortState(u16 portno, u8 protocol, int state); int getPortState(u16 portno, u8 protocol); int forgetPort(u16 portno, u8 protocol); bool portIsDefault(u16 portno, u8 protocol); /* Saves an identification string for the target containing these ports (an IP addrss might be a good example, but set what you want). Only used when printing new port updates. Optional. A copy is made. */ void setIdStr(const char *id); /* A function for iterating through the ports. Give NULL for the first "afterthisport". Then supply the most recent returned port for each subsequent call. When no more matching ports remain, NULL will be returned. To restrict returned ports to just one protocol, specify IPPROTO_TCP, IPPROTO_UDP or UPPROTO_SCTP for allowed_protocol. A TCPANDUDPANDSCTP for allowed_protocol matches either. A 0 for allowed_state matches all possible states. This function returns ports in numeric order from lowest to highest, except that if you ask for TCP, UDP & SCTP, all TCP ports will be returned before we start returning UDP and finally SCTP ports */ Port *nextPort(const Port *cur, Port *next, int allowed_protocol, int allowed_state); int setStateReason(u16 portno, u8 proto, reason_t reason, u8 ttl, const struct sockaddr_storage *ip_addr); int numscriptresults; /* Total number of scripts which produced output */ /* Get number of ports in this state. This a sum for protocols. */ int getStateCounts(int state) const; /* Get number of ports in this state for requested protocol. */ int getStateCounts(int protocol, int state) const; // sname should be NULL if sres is not // PROBESTATE_FINISHED_MATCHED. product,version, and/or extrainfo // will be NULL if unavailable. Note that this function makes its // own copy of sname and product/version/extrainfo. This function // also takes care of truncating the version strings to a // 'reasonable' length if necessary, and cleaning up any unprinable // chars. (these tests are to avoid annoying DOS (or other) attacks // by malicious services). The fingerprint should be NULL unless // one is available and the user should submit it. tunnel must be // SERVICE_TUNNEL_NONE (normal) or SERVICE_TUNNEL_SSL (means ssl was // detected and we tried to tunnel through it ). void setServiceProbeResults(u16 portno, int protocol, enum serviceprobestate sres, const char *sname, enum service_tunnel_type tunnel, const char *product, const char *version, const char *hostname, const char *ostype, const char *devicetype, const char *extrainfo, const std::vector *cpe, const char *fingerprint); // pass in an allocated struct serviceDeductions (don't worry about initializing, and // you don't have to free any internal ptrs. See the serviceDeductions definition for // the fields that are populated. Returns 0 if at least a name is available. void getServiceDeductions(u16 portno, int protocol, struct serviceDeductions *sd) const; #ifndef NOLUA void addScriptResult(u16 portno, int protocol, ScriptResult& sr); #endif /* Cycles through the 0 or more "ignored" ports which should be consolidated for Nmap output. They are returned sorted by the number of prots in the state, starting with the most common. It should first be called with PORT_UNKNOWN to obtain the most popular ignored state (if any). Then call with that state to get the next most popular one. Returns the state if there is one, but returns PORT_UNKNOWN if there are no (more) states which qualify for consolidation */ int nextIgnoredState(int prevstate); /* Returns true if a state should be ignored (consolidated), false otherwise */ bool isIgnoredState(int state); int numIgnoredStates(); int numIgnoredPorts(); int numPorts() const; bool hasOpenPorts() const; private: void mapPort(u16 *portno, u8 *protocol) const; /* Get Port structure from PortList structure.*/ const Port *lookupPort(u16 portno, u8 protocol) const; Port *createPort(u16 portno, u8 protocol); /* Set Port structure to PortList structure.*/ void setPortEntry(u16 portno, u8 protocol, Port *port); /* A string identifying the system these ports are on. Just used for printing open ports, if it is set with setIdStr() */ char *idstr; /* Number of ports in each state per each protocol. */ int state_counts_proto[PORTLIST_PROTO_MAX][PORT_HIGHEST_STATE]; Port **port_list[PORTLIST_PROTO_MAX]; protected: /* Maps port_number to index in port_list array. * Only functions: getPortEntry, setPortEntry, initializePortMap and * nextPort should access this structure directly. */ static u16 *port_map[PORTLIST_PROTO_MAX]; static u16 *port_map_rev[PORTLIST_PROTO_MAX]; /* Number of allocated elements in port_list per each protocol. */ static int port_list_count[PORTLIST_PROTO_MAX]; Port default_port_state[PORTLIST_PROTO_MAX]; }; #endif