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-rw-r--r--src/xline.cpp452
1 files changed, 452 insertions, 0 deletions
diff --git a/src/xline.cpp b/src/xline.cpp
index f653d80af..6ca005bad 100644
--- a/src/xline.cpp
+++ b/src/xline.cpp
@@ -35,6 +35,13 @@
#include "commands.h"
#include "xline.h"
+#ifdef GCC3
+#define nspace __gnu_cxx
+#else
+#define nspace std
+#endif
+
+
using namespace std;
extern int MODCOUNT;
@@ -56,8 +63,453 @@ extern char list[MAXBUF];
extern char PrefixQuit[MAXBUF];
extern char DieValue[MAXBUF];
+extern int debugging;
+extern int WHOWAS_STALE;
+extern int WHOWAS_MAX;
+extern int DieDelay;
+extern time_t startup_time;
+extern int NetBufferSize;
+extern time_t nb_start;
+
+extern std::vector<int> fd_reap;
+extern std::vector<std::string> module_names;
+
+extern char bannerBuffer[MAXBUF];
+extern int boundPortCount;
+extern int portCount;
+extern int UDPportCount;
+extern int ports[MAXSOCKS];
+extern int defaultRoute;
+
+extern std::vector<long> auth_cookies;
+extern std::stringstream config_f;
+
+extern serverrec* me[32];
+
+extern FILE *log_file;
+
+namespace nspace
+{
+ template<> struct nspace::hash<in_addr>
+ {
+ size_t operator()(const struct in_addr &a) const
+ {
+ size_t q;
+ memcpy(&q,&a,sizeof(size_t));
+ return q;
+ }
+ };
+
+ template<> struct nspace::hash<string>
+ {
+ size_t operator()(const string &s) const
+ {
+ char a[MAXBUF];
+ static struct hash<const char *> strhash;
+ strcpy(a,s.c_str());
+ strlower(a);
+ return strhash(a);
+ }
+ };
+}
+
+
+struct StrHashComp
+{
+
+ bool operator()(const string& s1, const string& s2) const
+ {
+ char a[MAXBUF],b[MAXBUF];
+ strcpy(a,s1.c_str());
+ strcpy(b,s2.c_str());
+ return (strcasecmp(a,b) == 0);
+ }
+
+};
+
+struct InAddr_HashComp
+{
+
+ bool operator()(const in_addr &s1, const in_addr &s2) const
+ {
+ size_t q;
+ size_t p;
+
+ memcpy(&q,&s1,sizeof(size_t));
+ memcpy(&p,&s2,sizeof(size_t));
+
+ return (q == p);
+ }
+
+};
+
+
+typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
+typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
+typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
+typedef std::deque<command_t> command_table;
+
+
+extern user_hash clientlist;
+extern chan_hash chanlist;
+extern user_hash whowas;
+extern command_table cmdlist;
+extern file_cache MOTD;
+extern file_cache RULES;
+extern address_cache IP;
+
+
std::vector<KLine> klines;
std::vector<GLine> glines;
std::vector<ZLine> zlines;
std::vector<QLine> qlines;
+// Reads the default bans from the config file.
+// only a very small number of bans are defined
+// this way these days, such as qlines against
+// services nicks, etc.
+
+void read_xline_defaults()
+{
+ char ipmask[MAXBUF];
+ char nick[MAXBUF];
+ char host[MAXBUF];
+ char reason[MAXBUF];
+
+ for (int i = 0; i < ConfValueEnum("badip",&config_f); i++)
+ {
+ ConfValue("badip","ipmask",i,ipmask,&config_f);
+ ConfValue("badip","reason",i,reason,&config_f);
+ add_zline(0,"<Config>",reason,ipmask);
+ log(DEBUG,"Read Z line (badip tag): ipmask=%s reason=%s",ipmask,reason);
+ }
+
+ for (int i = 0; i < ConfValueEnum("badnick",&config_f); i++)
+ {
+ ConfValue("badnick","nick",i,nick,&config_f);
+ ConfValue("badnick","reason",i,reason,&config_f);
+ add_qline(0,"<Config>",reason,nick);
+ log(DEBUG,"Read Q line (badnick tag): nick=%s reason=%s",nick,reason);
+ }
+
+ for (int i = 0; i < ConfValueEnum("badhost",&config_f); i++)
+ {
+ ConfValue("badhost","host",i,host,&config_f);
+ ConfValue("badhost","reason",i,reason,&config_f);
+ add_kline(0,"<Config>",reason,host);
+ log(DEBUG,"Read K line (badhost tag): host=%s reason=%s",host,reason);
+ }
+}
+
+// adds a g:line
+
+void add_gline(long duration, char* source, char* reason, char* hostmask)
+{
+ GLine item;
+ item.duration = duration;
+ strncpy(item.hostmask,hostmask,MAXBUF);
+ strncpy(item.reason,reason,MAXBUF);
+ strncpy(item.source,source,MAXBUF);
+ item.n_matches = 0;
+ item.set_time = time(NULL);
+ glines.push_back(item);
+}
+
+// adds a q:line
+
+void add_qline(long duration, char* source, char* reason, char* nickname)
+{
+ QLine item;
+ item.duration = duration;
+ strncpy(item.nick,nickname,MAXBUF);
+ strncpy(item.reason,reason,MAXBUF);
+ strncpy(item.source,source,MAXBUF);
+ item.n_matches = 0;
+ item.set_time = time(NULL);
+ qlines.push_back(item);
+}
+
+// adds a z:line
+
+void add_zline(long duration, char* source, char* reason, char* ipaddr)
+{
+ ZLine item;
+ item.duration = duration;
+ strncpy(item.ipaddr,ipaddr,MAXBUF);
+ strncpy(item.reason,reason,MAXBUF);
+ strncpy(item.source,source,MAXBUF);
+ item.n_matches = 0;
+ item.set_time = time(NULL);
+ zlines.push_back(item);
+}
+
+// adds a k:line
+
+void add_kline(long duration, char* source, char* reason, char* hostmask)
+{
+ KLine item;
+ item.duration = duration;
+ strncpy(item.hostmask,hostmask,MAXBUF);
+ strncpy(item.reason,reason,MAXBUF);
+ strncpy(item.source,source,MAXBUF);
+ item.n_matches = 0;
+ item.set_time = time(NULL);
+ klines.push_back(item);
+}
+
+// deletes a g:line, returns true if the line existed and was removed
+
+bool del_gline(char* hostmask)
+{
+ for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++)
+ {
+ if (!strcasecmp(hostmask,i->hostmask))
+ {
+ glines.erase(i);
+ return true;
+ }
+ }
+ return false;
+}
+
+// deletes a q:line, returns true if the line existed and was removed
+
+bool del_qline(char* nickname)
+{
+ for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++)
+ {
+ if (!strcasecmp(nickname,i->nick))
+ {
+ qlines.erase(i);
+ return true;
+ }
+ }
+ return false;
+}
+
+// deletes a z:line, returns true if the line existed and was removed
+
+bool del_zline(char* ipaddr)
+{
+ for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++)
+ {
+ if (!strcasecmp(ipaddr,i->ipaddr))
+ {
+ zlines.erase(i);
+ return true;
+ }
+ }
+ return false;
+}
+
+// deletes a k:line, returns true if the line existed and was removed
+
+bool del_kline(char* hostmask)
+{
+ for (std::vector<KLine>::iterator i = klines.begin(); i != klines.end(); i++)
+ {
+ if (!strcasecmp(hostmask,i->hostmask))
+ {
+ klines.erase(i);
+ return true;
+ }
+ }
+ return false;
+}
+
+// returns a pointer to the reason if a nickname matches a qline, NULL if it didnt match
+
+char* matches_qline(const char* nick)
+{
+ for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++)
+ {
+ if (match(nick,i->nick))
+ {
+ return i->reason;
+ }
+ }
+ return NULL;
+}
+
+// returns a pointer to the reason if a host matches a gline, NULL if it didnt match
+
+char* matches_gline(const char* host)
+{
+ for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++)
+ {
+ if (match(host,i->hostmask))
+ {
+ return i->reason;
+ }
+ }
+ return NULL;
+}
+
+// returns a pointer to the reason if an ip address matches a zline, NULL if it didnt match
+
+char* matches_zline(const char* ipaddr)
+{
+ for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++)
+ {
+ if (match(ipaddr,i->ipaddr))
+ {
+ return i->reason;
+ }
+ }
+ return NULL;
+}
+
+// returns a pointer to the reason if a host matches a kline, NULL if it didnt match
+
+char* matches_kline(const char* host)
+{
+ for (std::vector<KLine>::iterator i = klines.begin(); i != klines.end(); i++)
+ {
+ if (match(host,i->hostmask))
+ {
+ return i->reason;
+ }
+ }
+ return NULL;
+}
+
+// removes lines that have expired
+
+void expire_lines()
+{
+ bool go_again = true;
+ time_t current = time(NULL);
+
+ // because we mess up an iterator when we remove from the vector, we must bail from
+ // the loop early if we delete an item, therefore this outer while loop is required.
+ while (go_again)
+ {
+ go_again = false;
+
+ for (std::vector<KLine>::iterator i = klines.begin(); i != klines.end(); i++)
+ {
+ if ((current > (i->duration + i->set_time)) && (i->duration > 0))
+ {
+ WriteOpers("Expiring timed K-Line %s (set by %s %d seconds ago)",i->hostmask,i->source,i->duration);
+ klines.erase(i);
+ go_again = true;
+ break;
+ }
+ }
+
+ for (std::vector<GLine>::iterator i = glines.begin(); i != glines.end(); i++)
+ {
+ if ((current > (i->duration + i->set_time)) && (i->duration > 0))
+ {
+ WriteOpers("Expiring timed G-Line %s (set by %s %d seconds ago)",i->hostmask,i->source,i->duration);
+ glines.erase(i);
+ go_again = true;
+ break;
+ }
+ }
+
+ for (std::vector<ZLine>::iterator i = zlines.begin(); i != zlines.end(); i++)
+ {
+ if ((current > (i->duration + i->set_time)) && (i->duration > 0))
+ {
+ WriteOpers("Expiring timed Z-Line %s (set by %s %d seconds ago)",i->ipaddr,i->source,i->duration);
+ zlines.erase(i);
+ go_again = true;
+ break;
+ }
+ }
+
+ for (std::vector<QLine>::iterator i = qlines.begin(); i != qlines.end(); i++)
+ {
+ if ((current > (i->duration + i->set_time)) && (i->duration > 0))
+ {
+ WriteOpers("Expiring timed Q-Line %s (set by %s %d seconds ago)",i->nick,i->source,i->duration);
+ qlines.erase(i);
+ go_again = true;
+ break;
+ }
+ }
+ }
+}
+
+// applies lines, removing clients and changing nicks etc as applicable
+
+void apply_lines()
+{
+ bool go_again = true;
+ char reason[MAXBUF];
+ char host[MAXBUF];
+
+ while (go_again)
+ {
+ go_again = false;
+ for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
+ {
+ if (!strcasecmp(u->second->server,ServerName))
+ {
+ snprintf(host,MAXBUF,"%s@%s",u->second->ident,u->second->host);
+ char* check = matches_gline(host);
+ if (check)
+ {
+ WriteOpers("*** User %s matches G-Line: %s",u->second->nick,check);
+ snprintf(reason,MAXBUF,"G-Lined: %s",check);
+ kill_link(u->second,reason);
+ go_again = true;
+ break;
+ }
+ }
+ }
+
+ for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
+ {
+ if (!strcasecmp(u->second->server,ServerName))
+ {
+ snprintf(host,MAXBUF,"%s@%s",u->second->ident,u->second->host);
+ char* check = matches_kline(host);
+ if (check)
+ {
+ WriteOpers("*** User %s matches K-Line: %s",u->second->nick,check);
+ snprintf(reason,MAXBUF,"K-Lined: %s",check);
+ kill_link(u->second,reason);
+ go_again = true;
+ break;
+ }
+ }
+ }
+
+ for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
+ {
+ if (!strcasecmp(u->second->server,ServerName))
+ {
+ char* check = matches_qline(u->second->nick);
+ if (check)
+ {
+ snprintf(reason,MAXBUF,"Matched Q-Lined nick: %s",check);
+ WriteOpers("*** Q-Lined nickname %s from %s: %s",u->second->nick,u->second->host,check);
+ WriteServ(u->second->fd,"432 %s %s :Invalid nickname: %s",u->second->nick,u->second->nick,check);
+ kill_link(u->second,reason);
+ go_again = true;
+ break;
+ }
+ }
+ }
+
+ for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
+ {
+ if (!strcasecmp(u->second->server,ServerName))
+ {
+ char* check = matches_zline(u->second->ip);
+ if (check)
+ {
+ WriteOpers("*** User %s matches Z-Line: %s",u->second->nick,u->second->host,check);
+ WriteServ(u->second->fd,"432 %s %s :Invalid nickname: %s",u->second->nick,u->second->nick,check);
+ go_again = true;
+ break;
+ }
+ }
+ }
+
+ }
+}
+
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-19 20:07:40 +0000