* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
DNSRequest(InspIRCd* Instance, DNS* dns, int id, const std::string &original);
~DNSRequest();
- DNSInfo ResultIsReady(DNSHeader &h, int length, int result_we_want);
+ DNSInfo ResultIsReady(DNSHeader &h, int length);
int SendRequests(const DNSHeader *header, const int length, QueryType qt);
};
this->rr_class = 1;
this->type = qt;
-
+
DNS::EmptyHeader(payload,header,length);
#ifdef IPV6
/* Is the DNS connection down? */
if (this->GetFd() == -1)
return NULL;
-
+
/* Create an id */
id = this->PRNG() & DNS::MAX_REQUEST_ID;
/* DNS::Rehash() sets this to a valid ptr
*/
this->cache = NULL;
-
+
/* Again, DNS::Rehash() sets this to a
* valid value
*/
DNSHeader h;
int id;
int length;
-
+
if ((length = this->MakePayload(name, DNS_QUERY_A, 1, (unsigned char*)&h.payload)) == -1)
return -1;
DNSHeader h;
int id;
int length;
-#ifdef SUPPORT_IP6LINKS
+
if (fp == PROTOCOL_IPV6)
{
in6_addr i;
return -1;
}
else
-#endif
{
in_addr i;
if (inet_aton(ip, &i))
*/
void DNS::MakeIP6Int(char* query, const in6_addr *ip)
{
-#ifdef SUPPORT_IP6LINKS
const char* hex = "0123456789abcdef";
for (int index = 31; index >= 0; index--) /* for() loop steps twice per byte */
{
*query++ = '.'; /* Seperator */
}
strcpy(query,"ip6.arpa"); /* Suffix the string */
-#else
- *query = 0;
-#endif
}
/** Return the next id which is ready, and the result attached to it */
-DNSResult DNS::GetResult(int resultnum)
+DNSResult DNS::GetResult()
{
/* Fetch dns query response and decide where it belongs */
DNSHeader header;
DNSRequest *req;
unsigned char buffer[sizeof(DNSHeader)];
- sockaddr* from = new sockaddr[2];
-#ifdef IPV6
+ irc::sockets::sockaddrs from;
socklen_t x = this->socketfamily == AF_INET ? sizeof(sockaddr_in) : sizeof(sockaddr_in6);
-#else
- socklen_t x = sizeof(sockaddr_in);
-#endif
const char* ipaddr_from;
unsigned short int port_from = 0;
- int length = ServerInstance->SE->RecvFrom(this, (char*)buffer, sizeof(DNSHeader), 0, from, &x);
+ int length = ServerInstance->SE->RecvFrom(this, (char*)buffer, sizeof(DNSHeader), 0, &from.sa, &x);
/* Did we get the whole header? */
if (length < 12)
{
/* Nope - something screwed up. */
- delete[] from;
return DNSResult(-1,"",0,"");
}
char nbuf[MAXBUF];
if (this->socketfamily == AF_INET6)
{
- ipaddr_from = inet_ntop(AF_INET6, &((sockaddr_in6*)from)->sin6_addr, nbuf, sizeof(nbuf));
- port_from = ntohs(((sockaddr_in6*)from)->sin6_port);
+ ipaddr_from = inet_ntop(AF_INET6, &from.in6.sin6_addr, nbuf, sizeof(nbuf));
+ port_from = ntohs(from.in6.sin6_port);
}
else
#endif
{
- ipaddr_from = inet_ntoa(((sockaddr_in*)from)->sin_addr);
- port_from = ntohs(((sockaddr_in*)from)->sin_port);
+ ipaddr_from = inet_ntoa(from.in4.sin_addr);
+ port_from = ntohs(from.in4.sin_port);
}
- delete[] from;
-
/* We cant perform this security check if you're using 4in6.
* Tough luck to you, choose one or't other!
*/
* When its finished it will return a DNSInfo which is a pair of
* unsigned char* resource record data, and an error message.
*/
- DNSInfo data = req->ResultIsReady(header, length, resultnum);
+ DNSInfo data = req->ResultIsReady(header, length);
std::string resultstr;
/* Check if we got a result, if we didnt, its an error */
default:
break;
-
}
/* Build the reply with the id and hostname/ip in it */
}
/** A result is ready, process it */
-DNSInfo DNSRequest::ResultIsReady(DNSHeader &header, int length, int result_we_want)
+DNSInfo DNSRequest::ResultIsReady(DNSHeader &header, int length)
{
int i = 0;
int q = 0;
return std::make_pair((unsigned char*)NULL,"Incorrectly sized DNS reply");
/* XXX: We actually initialise 'rr' here including its ttl field */
- if (curanswer == result_we_want)
- DNS::FillResourceRecord(&rr,&header.payload[i]);
-
+ DNS::FillResourceRecord(&rr,&header.payload[i]);
+
i += 10;
+ ServerInstance->Logs->Log("RESOLVER",DEBUG,"Resolver: rr.type is %d and this.type is %d rr.class %d this.class %d", rr.type, this->type, rr.rr_class, this->rr_class);
if (rr.type != this->type)
{
curanswer++;
break;
}
if ((unsigned int)curanswer == header.ancount)
- return std::make_pair((unsigned char*)NULL,"No more answers (" + ConvToStr(header.ancount) + " answers, wanted #" + ConvToStr(result_we_want) + ")");
+ return std::make_pair((unsigned char*)NULL,"No A, AAAA or PTR type answers (" + ConvToStr(header.ancount) + " answers)");
if (i + rr.rdlength > (unsigned int)length)
return std::make_pair((unsigned char*)NULL,"Resource record larger than stated");
else
return NULL;
}
-
+
void DNS::DelCache(const std::string &source)
{
cache->erase(source.c_str());
void Resolver::TriggerCachedResult()
{
if (CQ)
- OnLookupComplete(CQ->data, time_left, true, 0);
+ OnLookupComplete(CQ->data, time_left, true);
}
/** High level abstraction of dns used by application at large */
void DNS::HandleEvent(EventType, int)
{
/* Fetch the id and result of the next available packet */
- int resultnum = 0;
DNSResult res(0,"",0,"");
res.id = 0;
ServerInstance->Logs->Log("RESOLVER",DEBUG,"Handle DNS event");
- res = this->GetResult(resultnum);
+ res = this->GetResult();
+
+ ServerInstance->Logs->Log("RESOLVER",DEBUG,"Result id %d", res.id);
- ServerInstance->Logs->Log("RESOLVER",DEBUG,"Result %d id %d", resultnum, res.id);
-
/* Is there a usable request id? */
if (res.id != -1)
{
{
if (ServerInstance && ServerInstance->stats)
ServerInstance->stats->statsDnsGood++;
-
+
if (!this->GetCache(res.original.c_str()))
this->cache->insert(std::make_pair(res.original.c_str(), CachedQuery(res.result, res.ttl)));
- Classes[res.id]->OnLookupComplete(res.result, res.ttl, false, resultnum);
+ Classes[res.id]->OnLookupComplete(res.result, res.ttl, false);
delete Classes[res.id];
Classes[res.id] = NULL;
}
}
-
+
if (ServerInstance && ServerInstance->stats)
ServerInstance->stats->statsDns++;
}
-
- resultnum++;
}
-
+
/** Add a derived Resolver to the working set */
bool DNS::AddResolverClass(Resolver* r)
{
{
if (Classes[i]->GetCreator() == module)
{
- Classes[i]->OnError(RESLOVER_FORCEUNLOAD, "Parent module is unloading");
+ Classes[i]->OnError(RESOLVER_FORCEUNLOAD, "Parent module is unloading");
delete Classes[i];
Classes[i] = NULL;
}
gettimeofday(&n,NULL);
val = (n.tv_usec ^ (getpid() ^ geteuid()) ^ ((this->currid++)) ^ s->statsAccept) + n.tv_sec;
val = val + (s->statsCollisions ^ s->statsDnsGood) - s->statsDnsBad;
- val += (s->statsConnects ^ (unsigned long)s->statsSent ^ (unsigned long)s->statsRecv) - ServerInstance->Config->ports.size();
+ val += (s->statsConnects ^ (unsigned long)s->statsSent ^ (unsigned long)s->statsRecv) - ServerInstance->ports.size();
return val;
}
-
-
projects / user / henk / code / inspircd.git / blobdiff