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-rw-r--r--src/modules/m_cloaking.cpp106
1 files changed, 69 insertions, 37 deletions
diff --git a/src/modules/m_cloaking.cpp b/src/modules/m_cloaking.cpp
index ff9fdc683..20e821e85 100644
--- a/src/modules/m_cloaking.cpp
+++ b/src/modules/m_cloaking.cpp
@@ -20,21 +20,19 @@
/* $ModDesc: Provides masking of user hostnames */
/* $ModDep: m_hash.h */
-/* Used to vary the output a little more depending on the cloak keys */
-static const char* xtab[] = {"F92E45D871BCA630", "A1B9D80C72E653F4", "1ABC078934DEF562", "ABCDEF5678901234"};
-
/** Handles user mode +x
*/
class CloakUser : public ModeHandler
{
-
std::string prefix;
unsigned int key1;
unsigned int key2;
unsigned int key3;
unsigned int key4;
+ bool ipalways;
Module* Sender;
Module* HashProvider;
+ const char *xtab[4];
/** This function takes a domain name string and returns just the last two domain parts,
* or the last domain part if only two are available. Failing that it just returns what it was given.
@@ -101,50 +99,65 @@ class CloakUser : public ModeHandler
if (n1 || n2)
{
+ unsigned int iv[] = { key1, key2, key3, key4 };
+ std::string a = LastTwoDomainParts(dest->host);
+ std::string b;
+
/* InspIRCd users have two hostnames; A displayed
* hostname which can be modified by modules (e.g.
* to create vhosts, implement chghost, etc) and a
* 'real' hostname which you shouldnt write to.
*/
- unsigned int iv[] = { key1, key2, key3, key4 };
- std::string a = LastTwoDomainParts(dest->host);
- std::string b;
-
- /** Reset the Hash module, and send it our IV and hex table */
- HashResetRequest(Sender, HashProvider).Send();
- HashKeyRequest(Sender, HashProvider, iv).Send();
- HashHexRequest(Sender, HashProvider, xtab[(*dest->host) % 4]);
-
- /* Generate a cloak using specialized Hash */
- std::string hostcloak = prefix + "-" + std::string(HashSumRequest(Sender, HashProvider, dest->host).Send()).substr(0,8) + a;
-
- /* Fix by brain - if the cloaked host is > the max length of a host (64 bytes
- * according to the DNS RFC) then tough titty, they get cloaked as an IP.
- * Their ISP shouldnt go to town on subdomains, or they shouldnt have a kiddie
- * vhost.
+ /* 2007/08/18: add <cloak:ipalways> which always cloaks
+ * the IP, for anonymity. --nenolod
*/
+ if (!ipalways)
+ {
+ /** Reset the Hash module, and send it our IV and hex table */
+ HashResetRequest(Sender, HashProvider).Send();
+ HashKeyRequest(Sender, HashProvider, iv).Send();
+ HashHexRequest(Sender, HashProvider, xtab[(*dest->host) % 4]);
+
+ /* Generate a cloak using specialized Hash */
+ std::string hostcloak = prefix + "-" + std::string(HashSumRequest(Sender, HashProvider, dest->host).Send()).substr(0,8) + a;
+
+ /* Fix by brain - if the cloaked host is > the max length of a host (64 bytes
+ * according to the DNS RFC) then tough titty, they get cloaked as an IP.
+ * Their ISP shouldnt go to town on subdomains, or they shouldnt have a kiddie
+ * vhost.
+ */
#ifdef IPV6
- in6_addr testaddr;
- in_addr testaddr2;
- if ((dest->GetProtocolFamily() == AF_INET6) && (inet_pton(AF_INET6,dest->host,&testaddr) < 1) && (hostcloak.length() <= 64))
- /* Invalid ipv6 address, and ipv6 user (resolved host) */
- b = hostcloak;
- else if ((dest->GetProtocolFamily() == AF_INET) && (inet_aton(dest->host,&testaddr2) < 1) && (hostcloak.length() <= 64))
- /* Invalid ipv4 address, and ipv4 user (resolved host) */
- b = hostcloak;
- else
- /* Valid ipv6 or ipv4 address (not resolved) ipv4 or ipv6 user */
- b = ((!strchr(dest->host,':')) ? Cloak4(dest->host) : Cloak6(dest->host));
+ in6_addr testaddr;
+ in_addr testaddr2;
+ if ((dest->GetProtocolFamily() == AF_INET6) && (inet_pton(AF_INET6,dest->host,&testaddr) < 1) && (hostcloak.length() <= 64))
+ /* Invalid ipv6 address, and ipv6 user (resolved host) */
+ b = hostcloak;
+ else if ((dest->GetProtocolFamily() == AF_INET) && (inet_aton(dest->host,&testaddr2) < 1) && (hostcloak.length() <= 64))
+ /* Invalid ipv4 address, and ipv4 user (resolved host) */
+ b = hostcloak;
+ else
+ /* Valid ipv6 or ipv4 address (not resolved) ipv4 or ipv6 user */
+ b = ((!strchr(dest->host,':')) ? Cloak4(dest->host) : Cloak6(dest->host));
#else
- in_addr testaddr;
- if ((inet_aton(dest->host,&testaddr) < 1) && (hostcloak.length() <= 64))
- /* Invalid ipv4 address, and ipv4 user (resolved host) */
- b = hostcloak;
+ in_addr testaddr;
+ if ((inet_aton(dest->host,&testaddr) < 1) && (hostcloak.length() <= 64))
+ /* Invalid ipv4 address, and ipv4 user (resolved host) */
+ b = hostcloak;
+ else
+ /* Valid ipv4 address (not resolved) ipv4 user */
+ b = Cloak4(dest->host);
+#endif
+ }
else
- /* Valid ipv4 address (not resolved) ipv4 user */
- b = Cloak4(dest->host);
+ {
+#ifdef IPV6
+ if (dest->GetProtocolFamily() == AF_INET6)
+ b = Cloak6(dest->GetIPString());
#endif
+ if (dest->GetProtocolFamily() == AF_INET)
+ b = Cloak4(dest->GetIPString());
+ }
dest->ChangeDisplayedHost(b.c_str());
}
@@ -243,12 +256,31 @@ class CloakUser : public ModeHandler
void DoRehash()
{
ConfigReader Conf(ServerInstance);
+ bool lowercase;
+
key1 = key2 = key3 = key4 = 0;
key1 = Conf.ReadInteger("cloak","key1",0,true);
key2 = Conf.ReadInteger("cloak","key2",0,true);
key3 = Conf.ReadInteger("cloak","key3",0,true);
key4 = Conf.ReadInteger("cloak","key4",0,true);
prefix = Conf.ReadValue("cloak","prefix",0);
+ ipalways = Conf.ReadFlag("cloak", "ipalways", 0);
+ lowercase = Conf.ReadFlag("cloak", "lowercase", 0);
+
+ if (!lowercase)
+ {
+ xtab[0] = "F92E45D871BCA630";
+ xtab[1] = "A1B9D80C72E653F4";
+ xtab[2] = "1ABC078934DEF562";
+ xtab[3] = "ABCDEF5678901234";
+ }
+ else
+ {
+ xtab[0] = "f92e45d871bca630";
+ xtab[1] = "a1b9d80c72e653f4";
+ xtab[2] = "1abc078934def562";
+ xtab[3] = "abcdef5678901234";
+ }
if (prefix.empty())
prefix = ServerInstance->Config->Network;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 16:39:15 +0000