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/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* shared.c: Defines the shared{} and cluster{} blocks of ircd.conf. |
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* |
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* Copyright (C) 2006 by the 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 "conf/conf.h" |
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#include "client.h" |
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#include "numeric.h" |
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#include "send.h" |
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#include "server.h" |
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|
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dlink_list cluster_confs = {0}; |
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dlink_list shared_confs = {0}; |
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|
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static dlink_node *hreset; |
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static char *tmpserver = NULL; |
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static char tmpuser[USERLEN + 1]; |
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static char tmphost[HOSTLEN + 1]; |
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static int tmpflags; |
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|
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FlagMap shared_flag_map = |
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{ |
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{'K', "kline", SHARED_KLINE}, |
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{'k', "tkline", SHARED_TKLINE}, |
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{'U', "unkline", SHARED_UNKLINE}, |
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{'X', "xline", SHARED_XLINE}, |
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{'x', "txline", SHARED_TXLINE}, |
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{'Y', "unxline", SHARED_UNXLINE}, |
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{'Q', "resv", SHARED_RESV}, |
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{'q', "tresv", SHARED_TRESV}, |
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{'R', "unresv", SHARED_UNRESV}, |
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{'L', "locops", SHARED_LOCOPS}, |
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{0, NULL, 0} |
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}; |
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|
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/* |
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* shared_type_as_string() |
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* |
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* Translates an integer type value to a string representation. |
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* |
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* inputs: |
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* type - bitfield |
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* str - where to put the result |
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* output: none |
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*/ |
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static void |
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shared_type_as_string(int type, char *str) |
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{ |
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const struct FlagMapping *m; |
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|
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for (m = shared_flag_map; m->letter; m++) |
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if ((type & m->flag) != 0) |
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*str++ = m->letter; |
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|
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*str = 0; |
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} |
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|
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/* |
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* reset_shared() |
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* |
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* Frees all shared/cluster blocks before a rehash. |
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* |
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* inputs: none |
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* output: none |
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*/ |
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static void * |
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reset_shared(va_list args) |
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{ |
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struct SharedConf *shared; |
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struct ClusterConf *cluster; |
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|
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while (shared_confs.head) |
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{ |
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shared = shared_confs.head->data; |
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dlinkDelete(&shared->node, &shared_confs); |
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|
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MyFree(shared->server); |
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MyFree(shared->user); |
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MyFree(shared->host); |
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MyFree(shared); |
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} |
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|
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while (cluster_confs.head) |
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{ |
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cluster = cluster_confs.head->data; |
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dlinkDelete(&cluster->node, &cluster_confs); |
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|
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MyFree(cluster->server); |
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MyFree(cluster); |
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} |
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|
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return pass_callback(hreset); |
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} |
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|
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/* |
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* clear_temp() |
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* |
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* Clears temporary storage before and after parsing a single shared/cluster block. |
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* |
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* inputs: none |
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* output: none |
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*/ |
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static void |
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clear_temp(void) |
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{ |
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MyFree(tmpserver); |
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tmpserver = NULL; |
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tmpuser[0] = tmphost[0] = 0; |
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tmpflags = 0; |
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} |
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|
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/* |
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* parse_user() |
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* |
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* Parses the "user=" field. |
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* |
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* inputs: user@host mask |
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* output: none |
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*/ |
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static void |
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parse_user(void *value, void *unused) |
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{ |
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struct split_nuh_item uh; |
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|
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uh.nuhmask = value; |
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uh.nickptr = NULL; |
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uh.userptr = tmpuser; |
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uh.hostptr = tmphost; |
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|
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uh.nicksize = 0; |
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uh.usersize = sizeof(tmpuser); |
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uh.hostsize = sizeof(tmphost); |
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|
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split_nuh(&uh); |
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} |
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|
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/* |
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* parse_type() |
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* |
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* Parses the "type=" field. |
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* |
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* inputs: pointer to a dlink list of string |
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* output: none |
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*/ |
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static void |
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parse_type(void *list, void *unused) |
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{ |
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const struct FlagMapping *p; |
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int errors = NO; |
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dlink_node *ptr; |
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|
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tmpflags = 0; |
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|
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DLINK_FOREACH(ptr, ((dlink_list *)list)->head) |
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{ |
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const char *str = ptr->data; |
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int found = NO, all = !irccmp(str, "all"); |
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|
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for (p = shared_flag_map; p->name; ++p) |
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if (all || !irccmp(str, p->name)) |
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{ |
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found = YES; |
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tmpflags |= p->flag; |
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if (!all) |
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break; |
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} |
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|
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if (!found) |
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errors = YES; |
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} |
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|
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if (errors) |
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parse_error("Invalid type specifier, check your syntax"); |
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} |
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|
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/* |
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* after_shared() |
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* |
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* Configures a single shared{} block. |
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* |
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* inputs: none |
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* output: none |
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*/ |
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static void |
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after_shared(void) |
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{ |
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struct SharedConf *conf; |
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int bits; |
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|
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if (!tmpflags) |
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{ |
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MyFree(tmpserver); |
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return; |
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} |
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|
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conf = MyMalloc(sizeof(*conf)); |
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|
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if (tmpserver) |
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conf->server = tmpserver; |
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else |
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DupString(conf->server, "*"); |
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tmpserver = NULL; |
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|
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DupString(conf->user, tmpuser[0] ? tmpuser : "*"); |
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DupString(conf->host, tmphost[0] ? tmphost : "*"); |
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if (parse_netmask(conf->host, &conf->ip, &bits) != HM_HOST) |
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conf->ip.ss_port = bits; |
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conf->type = tmpflags; |
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|
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dlinkAddTail(conf, &conf->node, &shared_confs); |
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} |
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|
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/* |
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* after_cluster() |
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* |
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* Configures a single cluster{} block. |
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* |
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* inputs: none |
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* output: none |
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*/ |
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static void |
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after_cluster(void) |
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{ |
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struct ClusterConf *conf; |
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|
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if (!tmpflags) |
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return; |
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|
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conf = MyMalloc(sizeof(*conf)); |
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if (tmpserver) |
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conf->server = tmpserver; |
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else |
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DupString(conf->server, "*"); |
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tmpserver = NULL; |
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|
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conf->type = tmpflags; |
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dlinkAddTail(conf, &conf->node, &cluster_confs); |
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} |
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|
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/* |
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* find_shared() |
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* |
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* Looks for a shared{} entry. |
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* |
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* inputs: |
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* serv - server that is trying to feed us |
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* user - username of the oper |
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* host - hostname of the oper |
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* addr - IP address of the oper |
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* type - operation type, e.g. SHARED_KLINE |
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* output: pointer to a shared conf or NULL |
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*/ |
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struct SharedConf * |
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find_shared(const char *serv, const char *user, const char *host, |
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const char *addr, int type) |
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{ |
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dlink_node *ptr; |
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struct SharedConf *conf; |
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struct addrinfo hints = {0}, *res; |
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struct irc_ssaddr ip; |
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|
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ip.ss.sin_family = AF_UNSPEC; |
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if (EmptyString(addr)) |
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addr = host; |
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|
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hints.ai_family = AF_UNSPEC; |
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hints.ai_socktype = SOCK_STREAM; |
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hints.ai_flags = AI_NUMERICHOST; |
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|
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if (!irc_getaddrinfo(addr, NULL, &hints, &res)) |
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{ |
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memcpy(&ip, res->ai_addr, res->ai_addrlen); |
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ip.ss.sin_family = res->ai_family; |
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ip.ss_len = res->ai_addrlen; |
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irc_freeaddrinfo(res); |
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} |
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|
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DLINK_FOREACH(ptr, shared_confs.head) |
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{ |
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conf = ptr->data; |
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if (!(conf->type & type) || (serv && !match(conf->server, serv)) || |
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(user && !match(conf->user, user))) |
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continue; |
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|
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if (ip.ss.sin_family != AF_UNSPEC && |
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conf->ip.ss.sin_family != AF_UNSPEC && ( |
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#ifdef IPV6 |
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(conf->ip.ss.sin_family == AF_INET6) ? match_ipv6 : |
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#endif |
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match_ipv4)(&ip, &conf->ip, conf->ip.ss_port)) |
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return conf; |
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if (host && match(conf->host, host)) |
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return conf; |
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} |
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|
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return NULL; |
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} |
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|
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/* |
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* report_shared() |
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* |
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* Sends a /stats U reply to the given client. |
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* |
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* inputs: client pointer |
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* output: none |
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*/ |
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void |
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report_shared(struct Client *to) |
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{ |
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dlink_node *ptr; |
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struct SharedConf *conf; |
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struct ClusterConf *conf2; |
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char buffer[32]; |
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|
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DLINK_FOREACH(ptr, shared_confs.head) |
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{ |
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conf = ptr->data; |
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buffer[0] = 'c'; |
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shared_type_as_string(conf->type, buffer + 1); |
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sendto_one(to, form_str(RPL_STATSULINE), ID_or_name(&me, to->from), |
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ID_or_name(to, to->from), conf->server ? conf->server : "*", |
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conf->user ? conf->user : "*", conf->host ? conf->host : "*", |
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buffer); |
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} |
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|
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DLINK_FOREACH(ptr, cluster_confs.head) |
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{ |
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conf2 = ptr->data; |
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buffer[0] = 'C'; |
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shared_type_as_string(conf->type, buffer + 1); |
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sendto_one(to, form_str(RPL_STATSULINE), ID_or_name(&me, to->from), |
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ID_or_name(to, to->from), conf->server ? conf->server : "*", |
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"*", "*", buffer); |
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} |
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} |
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|
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/* |
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* init_shared() |
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* |
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* Defines the shared{} and cluster{} conf sections. |
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* |
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* inputs: none |
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* output: none |
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*/ |
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void |
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init_shared(void) |
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{ |
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struct ConfSection *s = add_conf_section("shared", 2); |
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struct ConfSection *s2 = add_conf_section("cluster", 2); |
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|
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hreset = install_hook(reset_conf, reset_shared); |
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|
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s->before = s2->before = clear_temp; |
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|
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add_conf_field(s, "name", CT_STRING, NULL, &tmpserver); |
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add_conf_field(s2, "name", CT_STRING, NULL, &tmpserver); |
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add_conf_field(s, "user", CT_STRING, parse_user, NULL); |
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add_conf_field(s, "type", CT_LIST, parse_type, NULL); |
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add_conf_field(s2, "type", CT_LIST, parse_type, NULL); |
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|
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s->after = after_shared; |
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s2->after = after_cluster; |
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} |
