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/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* m_ltrace.c: Traces a path to a client/server. |
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* |
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* Copyright (C) 2002 Hybrid Development Team |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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* |
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* $Id$ |
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*/ |
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|
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#include "stdinc.h" |
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#include "handlers.h" |
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#include "tools.h" |
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#include "hook.h" |
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#include "client.h" |
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#include "common.h" |
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#include "hash.h" |
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#include "irc_string.h" |
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#include "ircd.h" |
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#include "numeric.h" |
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#include "fdlist.h" |
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#include "s_bsd.h" |
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#include "s_serv.h" |
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#include "s_conf.h" |
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#include "send.h" |
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#include "msg.h" |
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#include "parse.h" |
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#include "modules.h" |
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#include "irc_getnameinfo.h" |
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|
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static void do_ltrace(struct Client *, int, char **); |
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static void m_ltrace(struct Client *, struct Client *, int, char **); |
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static void mo_ltrace(struct Client *, struct Client *, int, char **); |
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|
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struct Message ltrace_msgtab = { |
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"LTRACE", 0, 0, 0, 0, MFLG_SLOW, 0, |
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{m_unregistered, m_ltrace, mo_ltrace, m_ignore, mo_ltrace, m_ignore} |
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}; |
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|
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#ifndef STATIC_MODULES |
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const char *_version = "$Revision$"; |
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static struct Callback *ltrace_cb; |
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|
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static void * |
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va_ltrace(va_list args) |
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{ |
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struct Client *source_p = va_arg(args, struct Client *); |
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int parc = va_arg(args, int); |
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char **parv = va_arg(args, char **); |
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|
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do_ltrace(source_p, parc, parv); |
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return NULL; |
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} |
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|
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void |
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_modinit(void) |
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{ |
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ltrace_cb = register_callback("doing_ltrace", va_ltrace); |
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mod_add_cmd(<race_msgtab); |
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} |
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|
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void |
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_moddeinit(void) |
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{ |
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mod_del_cmd(<race_msgtab); |
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uninstall_hook(ltrace_cb, va_ltrace); |
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} |
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#endif |
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|
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static void report_this_status(struct Client *, struct Client *, int); |
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|
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static void |
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trace_get_dependent(int *const server, |
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int *const client, const struct Client *target_p) |
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{ |
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const dlink_node *ptr = NULL; |
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|
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(*server)++; |
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(*client) += dlink_list_length(&target_p->serv->client_list); |
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|
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DLINK_FOREACH(ptr, target_p->serv->server_list.head) |
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trace_get_dependent(server, client, ptr->data); |
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} |
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|
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/* |
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* m_ltrace() |
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* |
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* parv[0] = sender prefix |
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* parv[1] = target client/server to trace |
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*/ |
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static void |
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m_ltrace(struct Client *client_p, struct Client *source_p, |
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int parc, char *parv[]) |
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{ |
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char *tname; |
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|
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if (parc > 1) |
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tname = parv[1]; |
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else |
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tname = me.name; |
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sendto_one(source_p, form_str(RPL_ENDOFTRACE), |
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me.name, parv[0], tname); |
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} |
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|
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/* |
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* do_ltrace |
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*/ |
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static void |
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do_ltrace(struct Client *source_p, int parc, char **parv) |
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{ |
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struct Client *target_p = NULL; |
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int doall; |
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int wilds, dow; |
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dlink_node *ptr; |
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char *looking_for = parv[0]; |
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char *tname = parc > 1 ? parv[1] : me.name; |
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|
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switch (hunt_server(source_p->from, source_p, ":%s LTRACE :%s", 1,parc,parv)) |
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{ |
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case HUNTED_PASS: /* note: gets here only if parv[1] exists */ |
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{ |
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struct Client *ac2ptr = NULL; |
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|
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if ((ac2ptr = find_client(tname)) == NULL) |
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DLINK_FOREACH(ptr, global_client_list.head) |
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{ |
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ac2ptr = ptr->data; |
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|
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if (match(tname, ac2ptr->name) || match(ac2ptr->name, tname)) |
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break; |
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else |
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ac2ptr = NULL; |
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} |
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|
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if (ac2ptr != NULL) |
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sendto_one(source_p, form_str(RPL_TRACELINK), me.name, looking_for, |
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ircd_version, tname, ac2ptr->from->name); |
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else |
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sendto_one(source_p, form_str(RPL_TRACELINK), me.name, looking_for, |
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ircd_version, tname, "ac2ptr_is_NULL!!"); |
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return; |
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} |
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case HUNTED_ISME: |
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break; |
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default: |
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return; |
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} |
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|
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doall = (parv[1] && (parc > 1)) ? match(tname, me.name): TRUE; |
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wilds = !parv[1] || strchr(tname, '*') || strchr(tname, '?'); |
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dow = wilds || doall; |
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|
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/* lusers cant issue ltrace.. */ |
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if (!dow) |
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{ |
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const char* name; |
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const char* class_name; |
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char ipaddr[HOSTIPLEN]; |
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|
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target_p = find_client(tname); |
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|
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if (target_p && IsClient(target_p)) |
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{ |
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name = get_client_name(target_p, HIDE_IP); |
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/* Should this be sockhost? - stu */ |
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irc_getnameinfo((struct sockaddr*)&target_p->localClient->ip, |
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target_p->localClient->ip.ss_len, ipaddr, |
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HOSTIPLEN, NULL, 0, NI_NUMERICHOST); |
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class_name = get_client_class(target_p); |
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|
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if (IsOper(target_p)) |
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{ |
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if (ConfigFileEntry.hide_spoof_ips) |
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sendto_one(source_p, form_str(RPL_TRACEOPERATOR), |
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me.name, source_p->name, class_name, name, |
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(IsIPSpoof(target_p) ? "255.255.255.255" : ipaddr), |
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CurrentTime - target_p->lasttime, |
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CurrentTime - target_p->localClient->last); |
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else |
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sendto_one(source_p, form_str(RPL_TRACEOPERATOR), |
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me.name, source_p->name, class_name, name, |
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(IsIPSpoof(target_p) ? "255.255.255.255" : ipaddr), |
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CurrentTime - target_p->lasttime, |
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CurrentTime - target_p->localClient->last); |
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} |
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} |
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|
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sendto_one(source_p, form_str(RPL_ENDOFTRACE), |
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me.name, source_p->name, tname); |
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return; |
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} |
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|
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/* report all opers */ |
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DLINK_FOREACH(ptr, local_client_list.head) |
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{ |
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target_p = ptr->data; |
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|
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if (!IsOper(target_p)) |
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continue; |
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|
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if (!doall && wilds && !match(tname, target_p->name)) |
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continue; |
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|
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if (!dow && irccmp(tname, target_p->name)) |
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continue; |
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|
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report_this_status(source_p, target_p, dow); |
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} |
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|
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/* report all servers */ |
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DLINK_FOREACH(ptr, serv_list.head) |
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{ |
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target_p = ptr->data; |
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|
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if (!doall && wilds && !match(tname, target_p->name)) |
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continue; |
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if (!dow && irccmp(tname, target_p->name)) |
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continue; |
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|
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report_this_status(source_p, target_p, dow); |
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} |
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|
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sendto_one(source_p, form_str(RPL_ENDOFTRACE), me.name, parv[0], tname); |
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} |
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|
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/* |
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* mo_ltrace |
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* parv[0] = sender prefix |
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* parv[1] = servername |
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*/ |
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static void |
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mo_ltrace(struct Client *client_p, struct Client *source_p, |
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int parc, char *parv[]) |
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{ |
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if (!IsOper(source_p)) |
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{ |
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sendto_one(source_p, form_str(RPL_ENDOFTRACE), me.name, parv[0], |
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parc > 1 ? parv[1] : me.name); |
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return; |
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} |
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|
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if (parc > 2) |
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if (hunt_server(client_p, source_p, ":%s LTRACE %s :%s", 2, parc, parv)) |
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return; |
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|
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#ifdef STATIC_MODULES |
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do_ltrace(source_p, parc, parv); |
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#else |
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execute_callback(ltrace_cb, source_p, parc, parv); |
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#endif |
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} |
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|
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/* |
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* report_this_status |
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* |
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* inputs - pointer to client to report to |
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* - pointer to client to report about |
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* output - counter of number of hits |
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* side effects - NONE |
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*/ |
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static void |
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report_this_status(struct Client *source_p, struct Client *target_p, |
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int dow) |
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{ |
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const char *name = NULL; |
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const char *class_name = NULL; |
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char ip[HOSTIPLEN]; |
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|
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/* Should this be sockhost? - stu */ |
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irc_getnameinfo((struct sockaddr *)&target_p->localClient->ip, |
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target_p->localClient->ip.ss_len, ip, |
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HOSTIPLEN, NULL, 0, NI_NUMERICHOST); |
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|
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name = get_client_name(target_p, HIDE_IP); |
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class_name = get_client_class(target_p); |
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|
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switch (target_p->status) |
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{ |
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case STAT_CONNECTING: |
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sendto_one(source_p, form_str(RPL_TRACECONNECTING), me.name, |
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source_p->name, class_name, |
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IsAdmin(source_p) ? name : target_p->name); |
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break; |
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|
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case STAT_HANDSHAKE: |
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sendto_one(source_p, form_str(RPL_TRACEHANDSHAKE), me.name, |
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source_p->name, class_name, |
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IsAdmin(source_p) ? name : target_p->name); |
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break; |
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|
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case STAT_CLIENT: |
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if (IsAdmin(target_p)) |
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{ |
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if (ConfigFileEntry.hide_spoof_ips) |
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sendto_one(source_p, form_str(RPL_TRACEOPERATOR), |
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me.name, source_p->name, class_name, name, |
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(IsIPSpoof(target_p) ? "255.255.255.255" : ip), |
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CurrentTime - target_p->lasttime, |
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CurrentTime - target_p->localClient->last); |
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else |
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sendto_one(source_p, form_str(RPL_TRACEOPERATOR), |
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me.name, source_p->name, class_name, name, |
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IsAdmin(source_p) ? ip : |
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(IsIPSpoof(target_p) ? "255.255.255.255" : ip), |
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CurrentTime - target_p->lasttime, |
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CurrentTime - target_p->localClient->last); |
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} |
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else if (IsOper(target_p)) |
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{ |
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if (ConfigFileEntry.hide_spoof_ips) |
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sendto_one(source_p, form_str(RPL_TRACEOPERATOR), |
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me.name, source_p->name, class_name, name, |
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(IsIPSpoof(target_p) ? "255.255.255.255" : ip), |
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CurrentTime - target_p->lasttime, |
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CurrentTime - target_p->localClient->last); |
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else |
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sendto_one(source_p, form_str(RPL_TRACEOPERATOR), |
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me.name, source_p->name, class_name, name, |
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(IsIPSpoof(target_p) ? "255.255.255.255" : ip), |
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CurrentTime - target_p->lasttime, |
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CurrentTime - target_p->localClient->last); |
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} |
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break; |
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|
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case STAT_SERVER: |
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{ |
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int clients = 0; |
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int servers = 0; |
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|
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trace_get_dependent(&servers, &clients, target_p); |
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|
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if (!IsAdmin(source_p)) |
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name = get_client_name(target_p, MASK_IP); |
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|
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sendto_one(source_p, form_str(RPL_TRACESERVER), |
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me.name, source_p->name, class_name, servers, |
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clients, name, *(target_p->serv->by) ? |
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target_p->serv->by : "*", "*", |
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me.name, CurrentTime - target_p->lasttime); |
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break; |
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} |
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|
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case STAT_ME: |
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case STAT_UNKNOWN: |
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break; |
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|
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default: /* ...we actually shouldn't come here... --msa */ |
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sendto_one(source_p, form_str(RPL_TRACENEWTYPE), me.name, |
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source_p->name, name); |
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break; |
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} |
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} |
