X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=include%2Fmodules%2Fdns.h;h=3db651798e0028267b8f91279a353ab4dbb382ba;hb=35b70631f0532a5828b04a8e0c02092a285f331a;hp=f4071e399ce5c391845de31f37808e9156acfcbd;hpb=a28f095db832e44aad66bfd73bfd8176a97c6de2;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/include/modules/dns.h b/include/modules/dns.h index f4071e399..3db651798 100644 --- a/include/modules/dns.h +++ b/include/modules/dns.h @@ -33,6 +33,8 @@ namespace DNS QUERY_CNAME = 5, /* Reverse DNS lookup */ QUERY_PTR = 12, + /* TXT */ + QUERY_TXT = 16, /* IPv6 AAAA lookup */ QUERY_AAAA = 28 }; @@ -57,6 +59,7 @@ namespace DNS ERROR_UNKNOWN, ERROR_UNLOADED, ERROR_TIMEDOUT, + ERROR_MALFORMED, ERROR_NOT_AN_ANSWER, ERROR_NONSTANDARD_QUERY, ERROR_FORMAT_ERROR, @@ -72,12 +75,6 @@ namespace DNS const int PORT = 53; - /** - * The maximum value of a dns request id, - * 16 bits wide, 0xFFFF. - */ - const int MAX_REQUEST_ID = 0xFFFF; - class Exception : public ModuleException { public: @@ -92,6 +89,7 @@ namespace DNS Question() : type(QUERY_NONE) { } Question(const std::string& n, QueryType t) : name(n), type(t) { } bool operator==(const Question& other) const { return ((name == other.name) && (type == other.type)); } + bool operator!=(const Question& other) const { return (!(*this == other)); } struct hash { @@ -114,13 +112,25 @@ namespace DNS struct Query { - std::vector questions; + Question question; std::vector answers; Error error; bool cached; Query() : error(ERROR_NONE), cached(false) { } - Query(const Question& question) : error(ERROR_NONE), cached(false) { questions.push_back(question); } + Query(const Question& q) : question(q), error(ERROR_NONE), cached(false) { } + + const ResourceRecord* FindAnswerOfType(QueryType qtype) const + { + for (std::vector::const_iterator i = answers.begin(); i != answers.end(); ++i) + { + const DNS::ResourceRecord& rr = *i; + if (rr.type == qtype) + return &rr; + } + + return NULL; + } }; class ReplySocket; @@ -140,11 +150,12 @@ namespace DNS /** A DNS query. */ - class Request : public Timer, public Question + class Request : public Timer { protected: Manager* const manager; public: + Question question; /* Use result cache if available */ bool use_cache; /* Request id */ @@ -153,14 +164,13 @@ namespace DNS Module* const creator; Request(Manager* mgr, Module* mod, const std::string& addr, QueryType qt, bool usecache = true) - : Timer((ServerInstance->Config->dns_timeout ? ServerInstance->Config->dns_timeout : 5)) - , Question(addr, qt) + : Timer(ServerInstance->Config->ConfValue("dns")->getDuration("timeout", 5, 1)) , manager(mgr) + , question(addr, qt) , use_cache(usecache) , id(0) , creator(mod) { - ServerInstance->Timers.AddTimer(this); } virtual ~Request() @@ -181,9 +191,9 @@ namespace DNS /** Used to time out the query, calls OnError and asks the TimerManager * to delete this request */ - bool Tick(time_t now) + bool Tick(time_t now) CXX11_OVERRIDE { - Query rr(*this); + Query rr(this->question); rr.error = ERROR_TIMEDOUT; this->OnError(&rr); delete this;