Add bandb IRCd APIs.

This commit is contained in:
William Pitcock 2010-01-07 17:10:16 -06:00
parent 5783a86050
commit 83595e6016
3 changed files with 467 additions and 0 deletions

19
include/bandbi.h Normal file
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@ -0,0 +1,19 @@
#ifndef INCLUDED_bandbi_h
#define INCLUDED_bandbi_h
void init_bandb(void);
typedef enum
{
BANDB_KLINE,
BANDB_DLINE,
BANDB_XLINE,
BANDB_RESV,
LAST_BANDB_TYPE
} bandb_type;
void bandb_add(bandb_type, struct Client *source_p, const char *mask1,
const char *mask2, const char *reason, const char *oper_reason, int perm);
void bandb_del(bandb_type, const char *mask1, const char *mask2);
void bandb_rehash_bans(void);
#endif

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@ -54,6 +54,7 @@ lex.yy.c: ircd_lexer.l
${LEX} ircd_lexer.l
SRCS = \
bandbi.c \
blacklist.c \
cache.c \
channel.c \

447
src/bandbi.c Normal file
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/* src/bandbi.c
* An interface to the ban db.
*
* Copyright (C) 2006 Lee Hardy <lee -at- leeh.co.uk>
* Copyright (C) 2006 ircd-ratbox development team
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1.Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2.Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3.The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $Id$
*/
#include "stdinc.h"
#include "ratbox_lib.h"
#include "client.h"
#include "s_conf.h"
#include "logger.h"
#include "match.h"
#include "bandbi.h"
#include "parse.h"
#include "channel.h"
#include "hostmask.h"
#include "hash.h"
#include "s_newconf.h"
#include "reject.h"
#include "send.h"
#include "ircd.h"
#include "msg.h" /* XXX: MAXPARA */
static char bandb_add_letter[LAST_BANDB_TYPE] = {
'K', 'D', 'X', 'R'
};
rb_dlink_list bandb_pending;
static rb_helper *bandb_helper;
static int start_bandb(void);
static void bandb_parse(rb_helper *);
static void bandb_restart_cb(rb_helper *);
static char *bandb_path;
void
init_bandb(void)
{
if(start_bandb())
{
ilog(L_MAIN, "Unable to start bandb helper: %s", strerror(errno));
exit(0);
}
}
static int
start_bandb(void)
{
char fullpath[PATH_MAX + 1];
#ifdef _WIN32
const char *suffix = ".exe";
#else
const char *suffix = "";
#endif
rb_setenv("BANDB_DPATH", ConfigFileEntry.dpath, 1);
if(bandb_path == NULL)
{
rb_snprintf(fullpath, sizeof(fullpath), "%s/bandb%s", BINPATH, suffix);
if(access(fullpath, X_OK) == -1)
{
rb_snprintf(fullpath, sizeof(fullpath), "%s/bin/bandb%s",
ConfigFileEntry.dpath, suffix);
if(access(fullpath, X_OK) == -1)
{
ilog(L_MAIN,
"Unable to execute bandb in %s or %s/bin",
BINPATH, ConfigFileEntry.dpath);
return 0;
}
}
bandb_path = rb_strdup(fullpath);
}
bandb_helper = rb_helper_start("bandb", bandb_path, bandb_parse, bandb_restart_cb);
if(bandb_helper == NULL)
{
ilog(L_MAIN, "Unable to start bandb: %s", strerror(errno));
sendto_realops_snomask(SNO_GENERAL, L_ALL, "Unable to start bandb: %s",
strerror(errno));
return 1;
}
rb_helper_run(bandb_helper);
return 0;
}
void
bandb_add(bandb_type type, struct Client *source_p, const char *mask1,
const char *mask2, const char *reason, const char *oper_reason, int perm)
{
static char buf[BUFSIZE];
rb_snprintf(buf, sizeof(buf), "%c %s ", bandb_add_letter[type], mask1);
if(!EmptyString(mask2))
rb_snprintf_append(buf, sizeof(buf), "%s ", mask2);
rb_snprintf_append(buf, sizeof(buf), "%s %ld %d :%s",
get_oper_name(source_p), (long int)rb_current_time(), perm, reason);
if(!EmptyString(oper_reason))
rb_snprintf_append(buf, sizeof(buf), "|%s", oper_reason);
rb_helper_write(bandb_helper, "%s", buf);
}
static char bandb_del_letter[LAST_BANDB_TYPE] = {
'k', 'd', 'x', 'r'
};
void
bandb_del(bandb_type type, const char *mask1, const char *mask2)
{
static char buf[BUFSIZE];
buf[0] = '\0';
rb_snprintf_append(buf, sizeof(buf), "%c %s", bandb_del_letter[type], mask1);
if(!EmptyString(mask2))
rb_snprintf_append(buf, sizeof(buf), " %s", mask2);
rb_helper_write(bandb_helper, "%s", buf);
}
static void
bandb_handle_ban(char *parv[], int parc)
{
struct ConfItem *aconf;
char *p;
int para = 1;
aconf = make_conf();
aconf->port = 0;
if(parv[0][0] == 'K')
aconf->user = rb_strdup(parv[para++]);
aconf->host = rb_strdup(parv[para++]);
aconf->passwd = rb_strdup(parv[para++]);
switch (parv[0][0])
{
case 'K':
aconf->status = CONF_KILL;
break;
case 'D':
aconf->status = CONF_DLINE;
break;
case 'X':
aconf->status = CONF_XLINE;
break;
case 'R':
if(IsChannelName(aconf->host))
aconf->status = CONF_RESV_CHANNEL;
else
aconf->status = CONF_RESV_NICK;
break;
}
if((p = strchr(parv[para], '|')))
{
*p++ = '\0';
aconf->spasswd = rb_strdup(p);
}
aconf->passwd = rb_strdup(parv[para]);
rb_dlinkAddAlloc(aconf, &bandb_pending);
}
static int
bandb_check_kline(struct ConfItem *aconf)
{
struct rb_sockaddr_storage daddr;
struct ConfItem *kconf = NULL;
int aftype;
const char *p;
aftype = parse_netmask(aconf->host, (struct sockaddr *)&daddr, NULL);
if(aftype != HM_HOST)
{
#ifdef RB_IPV6
if(aftype == HM_IPV6)
aftype = AF_INET6;
else
#endif
aftype = AF_INET;
kconf = find_conf_by_address(aconf->host, NULL, NULL, (struct sockaddr *)&daddr,
CONF_KILL, aftype, aconf->user, NULL);
}
else
kconf = find_conf_by_address(aconf->host, NULL, NULL, NULL, CONF_KILL, 0, aconf->user, NULL);
if(kconf && ((kconf->flags & CONF_FLAGS_TEMPORARY) == 0))
return 0;
for(p = aconf->user; *p; p++)
{
if(!IsUserChar(*p) && !IsKWildChar(*p))
return 0;
}
for(p = aconf->host; *p; p++)
{
if(!IsHostChar(*p) && !IsKWildChar(*p))
return 0;
}
return 1;
}
static int
bandb_check_dline(struct ConfItem *aconf)
{
struct rb_sockaddr_storage daddr;
/* struct ConfItem *dconf; */
int bits;
if(!parse_netmask(aconf->host, (struct sockaddr *)&daddr, &bits))
return 0;
return 1;
}
static int
bandb_check_xline(struct ConfItem *aconf)
{
struct ConfItem *xconf;
/* XXX perhaps convert spaces to \s? -- jilles */
xconf = find_xline_mask(aconf->host);
if(xconf != NULL && !(xconf->flags & CONF_FLAGS_TEMPORARY))
return 0;
return 1;
}
static int
bandb_check_resv_channel(struct ConfItem *aconf)
{
const char *p;
if(hash_find_resv(aconf->host) || strlen(aconf->host) > CHANNELLEN)
return 0;
for(p = aconf->host; *p; p++)
{
if(!IsChanChar(*p))
return 0;
}
return 1;
}
static int
bandb_check_resv_nick(struct ConfItem *aconf)
{
if(!clean_resv_nick(aconf->host))
return 0;
if(find_nick_resv(aconf->host))
return 0;
return 1;
}
static void
bandb_handle_clear(void)
{
rb_dlink_node *ptr, *next_ptr;
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, bandb_pending.head)
{
free_conf(ptr->data);
rb_dlinkDestroy(ptr, &bandb_pending);
}
}
static void
bandb_handle_finish(void)
{
struct ConfItem *aconf;
rb_dlink_node *ptr, *next_ptr;
clear_out_address_conf_bans();
clear_s_newconf_bans();
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, bandb_pending.head)
{
aconf = ptr->data;
rb_dlinkDestroy(ptr, &bandb_pending);
switch (aconf->status)
{
case CONF_KILL:
if(bandb_check_kline(aconf))
add_conf_by_address(aconf->host, CONF_KILL, aconf->user, NULL, aconf);
else
free_conf(aconf);
break;
case CONF_DLINE:
if(bandb_check_dline(aconf))
add_conf_by_address(aconf->host, CONF_DLINE, aconf->user, NULL, aconf);
else
free_conf(aconf);
break;
case CONF_XLINE:
if(bandb_check_xline(aconf))
rb_dlinkAddAlloc(aconf, &xline_conf_list);
else
free_conf(aconf);
break;
case CONF_RESV_CHANNEL:
if(bandb_check_resv_channel(aconf))
add_to_resv_hash(aconf->host, aconf);
else
free_conf(aconf);
break;
case CONF_RESV_NICK:
if(bandb_check_resv_nick(aconf))
rb_dlinkAddAlloc(aconf, &resv_conf_list);
else
free_conf(aconf);
break;
}
}
check_banned_lines();
}
static void
bandb_handle_failure(rb_helper *helper, char **parv, int parc)
{
if(server_state_foreground)
fprintf(stderr, "bandb - bandb failure: %s\n", parv[1]);
ilog(L_MAIN, "bandb - bandb failure: %s", parv[1]);
sendto_realops_snomask(SNO_GENERAL, L_ALL, "bandb - bandb failure: %s", parv[1]);
exit(1);
}
static void
bandb_parse(rb_helper *helper)
{
static char buf[READBUF_SIZE];
char *parv[MAXPARA + 1];
int len, parc;
while((len = rb_helper_read(helper, buf, sizeof(buf))))
{
parc = rb_string_to_array(buf, parv, MAXPARA);
if(parc < 1)
continue;
switch (parv[0][0])
{
case '!':
bandb_handle_failure(helper, parv, parc);
break;
case 'K':
case 'D':
case 'X':
case 'R':
bandb_handle_ban(parv, parc);
break;
case 'C':
bandb_handle_clear();
case 'F':
bandb_handle_finish();
break;
}
}
}
void
bandb_rehash_bans(void)
{
if(bandb_helper != NULL)
rb_helper_write(bandb_helper, "L");
}
static void
bandb_restart_cb(rb_helper *helper)
{
ilog(L_MAIN, "bandb - bandb_restart_cb called, bandb helper died?");
sendto_realops_snomask(SNO_GENERAL, L_ALL,
"bandb - bandb_restart_cb called, bandb helper died?");
if(helper != NULL)
{
rb_helper_close(helper);
bandb_helper = NULL;
}
start_bandb();
return;
}