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[svn] Prevent too wide klines with CIDR masks.

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This commit is contained in:
jilles 2007-05-19 16:36:51 -07:00
parent 598ebb42c7
commit 88a2a1484b
3 changed files with 29 additions and 8 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
jilles 2007/05/19 22:21:10 UTC (20070519-3464)
Log:
Exempt klines with a fixed user@ (no */?) from min_nonwildcard checks.
Changes: Modified:
+4 -0 trunk/modules/m_kline.c (File Modified)
jilles 2007/05/18 20:31:33 UTC (20070518-3460)
Log:
- fold conf_connect_allowed() into accept_connection()

2
include/serno.h
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@ -1 +1 @@
#define SERNO "20070518-3460"
#define SERNO "20070519-3464"

26
modules/m_kline.c
View file

@ -21,7 +21,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* $Id: m_kline.c 3464 2007-05-19 22:21:10Z jilles $
* $Id: m_kline.c 3466 2007-05-19 23:36:51Z jilles $
*/
#include "stdinc.h"
@ -65,7 +65,7 @@ struct Message unkline_msgtab = {
};
mapi_clist_av1 kline_clist[] = { &kline_msgtab, &unkline_msgtab, NULL };
DECLARE_MODULE_AV1(kline, NULL, NULL, kline_clist, NULL, NULL, "$Revision: 3464 $");
DECLARE_MODULE_AV1(kline, NULL, NULL, kline_clist, NULL, NULL, "$Revision: 3466 $");
/* Local function prototypes */
static int find_user_host(struct Client *source_p, const char *userhost, char *user, char *host);
@ -614,6 +614,7 @@ valid_wild_card(struct Client *source_p, const char *luser, const char *lhost)
const char *p;
char tmpch;
int nonwild = 0;
int bitlen;
/* user has no wildcards, always accept -- jilles */
if (!strchr(luser, '?') && !strchr(luser, '*'))
@ -632,12 +633,23 @@ valid_wild_card(struct Client *source_p, const char *luser, const char *lhost)
}
/* try host, as user didnt contain enough */
p = lhost;
while ((tmpch = *p++))
/* special case for cidr masks -- jilles */
if ((p = strrchr(lhost, '/')) != NULL && IsDigit(p[1]))
{
if(!IsKWildChar(tmpch))
if(++nonwild >= ConfigFileEntry.min_nonwildcard)
return 1;
bitlen = atoi(p + 1);
/* much like non-cidr for ipv6, rather arbitrary for ipv4 */
if (bitlen > 0 && bitlen >= (strchr(lhost, ':') ? 4 * (ConfigFileEntry.min_nonwildcard - nonwild) : 6 - 2 * nonwild))
return 1;
}
else
{
p = lhost;
while ((tmpch = *p++))
{
if(!IsKWildChar(tmpch))
if(++nonwild >= ConfigFileEntry.min_nonwildcard)
return 1;
}
}
sendto_one_notice(source_p,