mirror of
https://github.com/matrix-construct/construct
synced 2024-11-20 17:01:55 +01:00
Fixing bugs
This commit is contained in:
Valery Yatsko
parent
9fa9300fa2
commit
3c5a494ddd
2 changed files with 590 additions and 309 deletions
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@ -31,9 +31,6 @@
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extern rb_dlink_list delay_exit;
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extern rb_dlink_list delay_exit;
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struct ConfItem *find_dline(struct sockaddr *addr);
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struct ConfItem *find_dline_exact(struct sockaddr *addr, unsigned int bitlen);
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void init_reject(void);
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void init_reject(void);
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int check_reject(struct Client *);
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int check_reject(struct Client *);
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void add_reject(struct Client *, const char *mask1, const char *mask2);
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void add_reject(struct Client *, const char *mask1, const char *mask2);
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@ -45,4 +42,3 @@ int add_unknown_ip(struct Client *client_p);
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void del_unknown_ip(struct Client *client_p);
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void del_unknown_ip(struct Client *client_p);
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#endif
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#endif
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583
src/reject.c
583
src/reject.c
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@ -17,171 +17,213 @@
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*
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*
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* You should have received a copy of the GNU General Public License
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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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* 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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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
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* USA
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* USA
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*
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*
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* $Id: reject.c 3456 2007-05-18 19:14:18Z jilles $
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* $Id: reject.c 25119 2008-03-13 16:57:05Z androsyn $
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*/
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*/
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#include "stdinc.h"
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#include "stdinc.h"
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#include "config.h"
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#include "patricia.h"
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#include "client.h"
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#include "client.h"
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#include "s_conf.h"
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#include "s_conf.h"
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#include "event.h"
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#include "rb_tools.h"
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#include "reject.h"
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#include "reject.h"
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#include "s_stats.h"
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#include "s_stats.h"
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#include "msg.h"
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#include "ircd.h"
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#include "hash.h"
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#include "send.h"
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#include "numeric.h"
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#include "parse.h"
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#include "hostmask.h"
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static patricia_tree_t *reject_tree;
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static rb_patricia_tree_t *global_tree;
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rb_dlink_list delay_exit;
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static rb_patricia_tree_t *reject_tree;
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static rb_patricia_tree_t *dline_tree;
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static rb_patricia_tree_t *eline_tree;
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static rb_dlink_list delay_exit;
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static rb_dlink_list reject_list;
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static rb_dlink_list reject_list;
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static rb_dlink_list throttle_list;
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static rb_patricia_tree_t *throttle_tree;
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static void throttle_expires(void *unused);
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static patricia_tree_t *unknown_tree;
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struct reject_data
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typedef struct _reject_data
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{
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{
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rb_dlink_node rnode;
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rb_dlink_node rnode;
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time_t time;
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time_t time;
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unsigned int count;
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unsigned int count;
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uint32_t mask_hashv;
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} reject_t;
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};
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static patricia_tree_t *unknown_tree;
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typedef struct _delay_data
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{
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rb_dlink_node node;
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rb_fde_t *F;
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} delay_t;
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typedef struct _throttle
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{
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rb_dlink_node node;
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time_t last;
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int count;
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} throttle_t;
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typedef struct _global_data
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{
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int count;
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} global_t;
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static rb_patricia_node_t *
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add_ipline(struct ConfItem *aconf, rb_patricia_tree_t *tree, struct sockaddr *addr, int cidr)
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{
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rb_patricia_node_t *pnode;
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pnode = make_and_lookup_ip(tree, addr, cidr);
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if(pnode == NULL)
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return NULL;
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aconf->pnode = pnode;
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pnode->data = aconf;
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return (pnode);
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}
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int
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add_dline(struct ConfItem *aconf)
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{
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struct rb_sockaddr_storage st;
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int bitlen;
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if(parse_netmask(aconf->host, (struct sockaddr *)&st, &bitlen) == HM_HOST)
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return 0;
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if(add_ipline(aconf, dline_tree, (struct sockaddr *)&st, bitlen) != NULL)
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return 1;
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return 0;
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}
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int
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add_eline(struct ConfItem *aconf)
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{
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struct rb_sockaddr_storage st;
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int bitlen;
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if(parse_netmask(aconf->host, (struct sockaddr *)&st, &bitlen) == HM_HOST)
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return 0;
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if(add_ipline(aconf, eline_tree, (struct sockaddr *)&st, bitlen) != NULL)
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return 1;
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return 0;
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}
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unsigned long
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delay_exit_length(void)
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{
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return rb_dlink_list_length(&delay_exit);
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}
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static void
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static void
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reject_exit(void *unused)
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reject_exit(void *unused)
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{
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{
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struct Client *client_p;
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rb_dlink_node *ptr, *ptr_next;
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rb_dlink_node *ptr, *ptr_next;
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delay_t *ddata;
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static const char *errbuf = "ERROR :Closing Link: (*** Banned (cache))\r\n";
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RB_DLINK_FOREACH_SAFE(ptr, ptr_next, delay_exit.head)
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RB_DLINK_FOREACH_SAFE(ptr, ptr_next, delay_exit.head)
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{
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{
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client_p = ptr->data;
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ddata = ptr->data;
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if(IsDead(client_p))
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continue;
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/* this MUST be here, to prevent the possibility
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rb_write(ddata->F, errbuf, strlen(errbuf));
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* sendto_one() generates a write error, and then a client
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rb_close(ddata->F);
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* ends up on the dead_list and the abort_list --fl
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rb_free(ddata);
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*
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* new disconnect notice stolen from ircu --nenolod
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* no, this only happens when someone's IP has some
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* ban on it and rejects them rather longer than the
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* ircu message suggests --jilles
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*/
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if(!IsIOError(client_p))
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{
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if(IsExUnknown(client_p))
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sendto_one(client_p, "ERROR :Closing Link: %s (*** Too many unknown connections)", client_p->host);
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else
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sendto_one(client_p, "ERROR :Closing Link: %s (*** Banned (cache))", client_p->host);
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}
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close_connection(client_p);
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SetDead(client_p);
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rb_dlinkAddAlloc(client_p, &dead_list);
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}
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}
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delay_exit.head = delay_exit.tail = NULL;
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delay_exit.head = delay_exit.tail = NULL;
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delay_exit.length = 0;
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delay_exit.length = 0;
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}
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}
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static void
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static void
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reject_expires(void *unused)
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reject_expires(void *unused)
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{
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{
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rb_dlink_node *ptr, *next;
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rb_dlink_node *ptr, *next;
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patricia_node_t *pnode;
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rb_patricia_node_t *pnode;
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struct reject_data *rdata;
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reject_t *rdata;
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RB_DLINK_FOREACH_SAFE(ptr, next, reject_list.head)
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RB_DLINK_FOREACH_SAFE(ptr, next, reject_list.head)
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{
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{
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pnode = ptr->data;
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pnode = ptr->data;
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rdata = pnode->data;
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rdata = pnode->data;
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if(rdata->time + ConfigFileEntry.reject_duration > CurrentTime)
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if(rdata->time + ConfigFileEntry.reject_duration > rb_current_time())
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continue;
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continue;
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rb_dlinkDelete(ptr, &reject_list);
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rb_dlinkDelete(ptr, &reject_list);
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MyFree(rdata);
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rb_free(rdata);
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patricia_remove(reject_tree, pnode);
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rb_patricia_remove(reject_tree, pnode);
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}
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}
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}
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}
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void
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void
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init_reject(void)
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init_reject(void)
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{
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{
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reject_tree = New_Patricia(PATRICIA_BITS);
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reject_tree = rb_new_patricia(PATRICIA_BITS);
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unknown_tree = New_Patricia(PATRICIA_BITS);
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dline_tree = rb_new_patricia(PATRICIA_BITS);
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eventAdd("reject_exit", reject_exit, NULL, DELAYED_EXIT_TIME);
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eline_tree = rb_new_patricia(PATRICIA_BITS);
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eventAdd("reject_expires", reject_expires, NULL, 60);
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throttle_tree = rb_new_patricia(PATRICIA_BITS);
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global_tree = rb_new_patricia(PATRICIA_BITS);
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rb_event_add("reject_exit", reject_exit, NULL, DELAYED_EXIT_TIME);
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rb_event_add("reject_expires", reject_expires, NULL, 60);
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rb_event_add("throttle_expires", throttle_expires, NULL, 10);
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}
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}
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void
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void
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add_reject(struct Client *client_p, const char *mask1, const char *mask2)
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add_reject(struct Client *client_p)
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{
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{
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patricia_node_t *pnode;
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rb_patricia_node_t *pnode;
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struct reject_data *rdata;
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reject_t *rdata;
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uint32_t hashv;
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/* Reject is disabled */
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/* Reject is disabled */
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if(ConfigFileEntry.reject_after_count == 0 || ConfigFileEntry.reject_ban_time == 0)
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if(ConfigFileEntry.reject_after_count == 0 || ConfigFileEntry.reject_duration == 0)
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return;
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return;
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hashv = 0;
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if((pnode = rb_match_ip(reject_tree, (struct sockaddr *)&client_p->localClient->ip)) != NULL)
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if (mask1 != NULL)
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hashv ^= fnv_hash_upper(mask1, 32);
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if (mask2 != NULL)
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hashv ^= fnv_hash_upper(mask2, 32);
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if((pnode = match_ip(reject_tree, (struct sockaddr *)&client_p->localClient->ip)) != NULL)
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{
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{
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rdata = pnode->data;
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rdata = pnode->data;
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rdata->time = CurrentTime;
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rdata->time = rb_current_time();
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rdata->count++;
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rdata->count++;
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}
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}
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else
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else
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{
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{
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int bitlen = 32;
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int bitlen = 32;
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#ifdef IPV6
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#ifdef RB_IPV6
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if(client_p->localClient->ip.ss_family == AF_INET6)
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if(GET_SS_FAMILY(&client_p->localClient->ip) == AF_INET6)
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bitlen = 128;
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bitlen = 128;
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#endif
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#endif
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pnode = make_and_lookup_ip(reject_tree, (struct sockaddr *)&client_p->localClient->ip, bitlen);
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pnode = make_and_lookup_ip(reject_tree, (struct sockaddr *)&client_p->localClient->ip, bitlen);
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pnode->data = rdata = MyMalloc(sizeof(struct reject_data));
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pnode->data = rdata = rb_malloc(sizeof(reject_t));
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rb_dlinkAddTail(pnode, &rdata->rnode, &reject_list);
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rb_dlinkAddTail(pnode, &rdata->rnode, &reject_list);
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rdata->time = CurrentTime;
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rdata->time = rb_current_time();
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rdata->count = 1;
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rdata->count = 1;
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}
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}
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rdata->mask_hashv = hashv;
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}
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}
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int
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int
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check_reject(struct Client *client_p)
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check_reject(rb_fde_t *F, struct sockaddr *addr)
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{
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{
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patricia_node_t *pnode;
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rb_patricia_node_t *pnode;
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struct reject_data *rdata;
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reject_t *rdata;
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delay_t *ddata;
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/* Reject is disabled */
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/* Reject is disabled */
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if(ConfigFileEntry.reject_after_count == 0 || ConfigFileEntry.reject_ban_time == 0 ||
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if(ConfigFileEntry.reject_after_count == 0 || ConfigFileEntry.reject_duration == 0)
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ConfigFileEntry.reject_duration == 0)
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return 0;
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return 0;
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pnode = match_ip(reject_tree, (struct sockaddr *)&client_p->localClient->ip);
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pnode = rb_match_ip(reject_tree, addr);
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if(pnode != NULL)
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if(pnode != NULL)
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{
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{
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rdata = pnode->data;
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rdata = pnode->data;
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rdata->time = CurrentTime;
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rdata->time = rb_current_time();
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if(rdata->count > ConfigFileEntry.reject_after_count)
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if(rdata->count > (unsigned long)ConfigFileEntry.reject_after_count)
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{
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{
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ServerStats->is_rej++;
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ddata = rb_malloc(sizeof(delay_t));
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SetReject(client_p);
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ServerStats.is_rej++;
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rb_setselect(client_p->localClient->F->fd, FDLIST_NONE, COMM_SELECT_WRITE | COMM_SELECT_READ, NULL, NULL, 0);
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rb_setselect(F, RB_SELECT_WRITE | RB_SELECT_READ, NULL, NULL);
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SetClosing(client_p);
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ddata->F = F;
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rb_dlinkMoveNode(&client_p->localClient->tnode, &unknown_list, &delay_exit);
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rb_dlinkAdd(ddata, &ddata->node, &delay_exit);
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return 1;
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return 1;
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}
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}
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}
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}
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@ -193,113 +235,356 @@ void
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flush_reject(void)
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flush_reject(void)
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{
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{
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rb_dlink_node *ptr, *next;
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rb_dlink_node *ptr, *next;
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patricia_node_t *pnode;
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rb_patricia_node_t *pnode;
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struct reject_data *rdata;
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reject_t *rdata;
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RB_DLINK_FOREACH_SAFE(ptr, next, reject_list.head)
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RB_DLINK_FOREACH_SAFE(ptr, next, reject_list.head)
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{
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{
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pnode = ptr->data;
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pnode = ptr->data;
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rdata = pnode->data;
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rdata = pnode->data;
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rb_dlinkDelete(ptr, &reject_list);
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rb_dlinkDelete(ptr, &reject_list);
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MyFree(rdata);
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rb_free(rdata);
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patricia_remove(reject_tree, pnode);
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rb_patricia_remove(reject_tree, pnode);
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}
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}
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}
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}
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int
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int
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remove_reject_ip(const char *ip)
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remove_reject(const char *ip)
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{
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{
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patricia_node_t *pnode;
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rb_patricia_node_t *pnode;
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/* Reject is disabled */
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/* Reject is disabled */
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if(ConfigFileEntry.reject_after_count == 0 || ConfigFileEntry.reject_ban_time == 0 ||
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if(ConfigFileEntry.reject_after_count == 0 || ConfigFileEntry.reject_duration == 0)
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ConfigFileEntry.reject_duration == 0)
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return -1;
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return -1;
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if((pnode = match_string(reject_tree, ip)) != NULL)
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if((pnode = rb_match_string(reject_tree, ip)) != NULL)
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{
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{
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struct reject_data *rdata = pnode->data;
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reject_t *rdata = pnode->data;
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rb_dlinkDelete(&rdata->rnode, &reject_list);
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rb_dlinkDelete(&rdata->rnode, &reject_list);
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MyFree(rdata);
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rb_free(rdata);
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patricia_remove(reject_tree, pnode);
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rb_patricia_remove(reject_tree, pnode);
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return 1;
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return 1;
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}
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}
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return 0;
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return 0;
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}
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}
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int
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static void
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remove_reject_mask(const char *mask1, const char *mask2)
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delete_ipline(struct ConfItem *aconf, rb_patricia_tree_t *t)
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{
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{
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rb_dlink_node *ptr, *next;
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rb_patricia_remove(t, aconf->pnode);
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patricia_node_t *pnode;
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if(!aconf->clients)
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struct reject_data *rdata;
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uint32_t hashv;
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int n = 0;
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|
|
||||||
hashv = 0;
|
|
||||||
if (mask1 != NULL)
|
|
||||||
hashv ^= fnv_hash_upper(mask1, 32);
|
|
||||||
if (mask2 != NULL)
|
|
||||||
hashv ^= fnv_hash_upper(mask2, 32);
|
|
||||||
RB_DLINK_FOREACH_SAFE(ptr, next, reject_list.head)
|
|
||||||
{
|
{
|
||||||
pnode = ptr->data;
|
free_conf(aconf);
|
||||||
rdata = pnode->data;
|
|
||||||
if (rdata->mask_hashv == hashv)
|
|
||||||
{
|
|
||||||
rb_dlinkDelete(ptr, &reject_list);
|
|
||||||
MyFree(rdata);
|
|
||||||
patricia_remove(reject_tree, pnode);
|
|
||||||
n++;
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
return n;
|
}
|
||||||
|
|
||||||
|
static struct ConfItem *
|
||||||
|
find_ipline(rb_patricia_tree_t *t, struct sockaddr *addr)
|
||||||
|
{
|
||||||
|
rb_patricia_node_t *pnode;
|
||||||
|
pnode = rb_match_ip(t, addr);
|
||||||
|
if(pnode != NULL)
|
||||||
|
return (struct ConfItem *) pnode->data;
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct ConfItem *
|
||||||
|
find_ipline_exact(rb_patricia_tree_t *t, struct sockaddr *addr, unsigned int bitlen)
|
||||||
|
{
|
||||||
|
rb_patricia_node_t *pnode;
|
||||||
|
pnode = rb_match_ip_exact(t, addr, bitlen);
|
||||||
|
if(pnode != NULL)
|
||||||
|
return (struct ConfItem *) pnode->data;
|
||||||
|
return NULL;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
int
|
struct ConfItem *
|
||||||
add_unknown_ip(struct Client *client_p)
|
find_dline(struct sockaddr *addr)
|
||||||
{
|
{
|
||||||
patricia_node_t *pnode;
|
struct ConfItem *aconf;
|
||||||
|
aconf = find_ipline(eline_tree, addr);
|
||||||
if((pnode = match_ip(unknown_tree, (struct sockaddr *)&client_p->localClient->ip)) == NULL)
|
if(aconf != NULL)
|
||||||
{
|
{
|
||||||
int bitlen = 32;
|
return aconf;
|
||||||
#ifdef IPV6
|
|
||||||
if(client_p->localClient->ip.ss_family == AF_INET6)
|
|
||||||
bitlen = 128;
|
|
||||||
#endif
|
|
||||||
pnode = make_and_lookup_ip(unknown_tree, (struct sockaddr *)&client_p->localClient->ip, bitlen);
|
|
||||||
pnode->data = (void *)0;
|
|
||||||
}
|
}
|
||||||
|
return (find_ipline(dline_tree, addr));
|
||||||
|
}
|
||||||
|
|
||||||
if((unsigned long)pnode->data >= ConfigFileEntry.max_unknown_ip)
|
struct ConfItem *
|
||||||
{
|
find_dline_exact(struct sockaddr *addr, unsigned int bitlen)
|
||||||
SetExUnknown(client_p);
|
{
|
||||||
SetReject(client_p);
|
return find_ipline_exact(dline_tree, addr, bitlen);
|
||||||
rb_setselect(client_p->localClient->F->fd, FDLIST_NONE, COMM_SELECT_WRITE | COMM_SELECT_READ, NULL, NULL, 0);
|
|
||||||
SetClosing(client_p);
|
|
||||||
rb_dlinkMoveNode(&client_p->localClient->tnode, &unknown_list, &delay_exit);
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
pnode->data = (void *)((unsigned long)pnode->data + 1);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
void
|
void
|
||||||
del_unknown_ip(struct Client *client_p)
|
remove_dline(struct ConfItem *aconf)
|
||||||
{
|
{
|
||||||
patricia_node_t *pnode;
|
delete_ipline(aconf, dline_tree);
|
||||||
|
}
|
||||||
|
|
||||||
if((pnode = match_ip(unknown_tree, (struct sockaddr *)&client_p->localClient->ip)) != NULL)
|
void
|
||||||
|
report_dlines(struct Client *source_p)
|
||||||
|
{
|
||||||
|
rb_patricia_node_t *pnode;
|
||||||
|
struct ConfItem *aconf;
|
||||||
|
const char *host, *pass, *user, *oper_reason;
|
||||||
|
RB_PATRICIA_WALK(dline_tree->head, pnode)
|
||||||
{
|
{
|
||||||
pnode->data = (void *)((unsigned long)pnode->data - 1);
|
aconf = pnode->data;
|
||||||
if((unsigned long)pnode->data <= 0)
|
if(aconf->flags & CONF_FLAGS_TEMPORARY)
|
||||||
|
RB_PATRICIA_WALK_BREAK;
|
||||||
|
get_printable_kline(source_p, aconf, &host, &pass, &user, &oper_reason);
|
||||||
|
sendto_one_numeric(source_p, RPL_STATSDLINE,
|
||||||
|
form_str (RPL_STATSDLINE),
|
||||||
|
'D', host, pass,
|
||||||
|
oper_reason ? "|" : "",
|
||||||
|
oper_reason ? oper_reason : "");
|
||||||
|
}
|
||||||
|
RB_PATRICIA_WALK_END;
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
report_tdlines(struct Client *source_p)
|
||||||
|
{
|
||||||
|
rb_patricia_node_t *pnode;
|
||||||
|
struct ConfItem *aconf;
|
||||||
|
const char *host, *pass, *user, *oper_reason;
|
||||||
|
RB_PATRICIA_WALK(dline_tree->head, pnode)
|
||||||
|
{
|
||||||
|
aconf = pnode->data;
|
||||||
|
if(!(aconf->flags & CONF_FLAGS_TEMPORARY))
|
||||||
|
RB_PATRICIA_WALK_BREAK;
|
||||||
|
get_printable_kline(source_p, aconf, &host, &pass, &user, &oper_reason);
|
||||||
|
sendto_one_numeric(source_p, RPL_STATSDLINE,
|
||||||
|
form_str (RPL_STATSDLINE),
|
||||||
|
'd', host, pass,
|
||||||
|
oper_reason ? "|" : "",
|
||||||
|
oper_reason ? oper_reason : "");
|
||||||
|
}
|
||||||
|
RB_PATRICIA_WALK_END;
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
report_elines(struct Client *source_p)
|
||||||
|
{
|
||||||
|
rb_patricia_node_t *pnode;
|
||||||
|
struct ConfItem *aconf;
|
||||||
|
int port;
|
||||||
|
const char *name, *host, *pass, *user, *classname;
|
||||||
|
RB_PATRICIA_WALK(eline_tree->head, pnode)
|
||||||
|
{
|
||||||
|
aconf = pnode->data;
|
||||||
|
get_printable_conf(aconf, &name, &host, &pass, &user, &port, &classname);
|
||||||
|
sendto_one_numeric(source_p, RPL_STATSDLINE,
|
||||||
|
form_str (RPL_STATSDLINE),
|
||||||
|
'e', host, pass,
|
||||||
|
"", "");
|
||||||
|
}
|
||||||
|
RB_PATRICIA_WALK_END;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
int
|
||||||
|
throttle_add(struct sockaddr *addr)
|
||||||
|
{
|
||||||
|
throttle_t *t;
|
||||||
|
rb_patricia_node_t *pnode;
|
||||||
|
|
||||||
|
if((pnode = rb_match_ip(throttle_tree, addr)) != NULL)
|
||||||
|
{
|
||||||
|
t = pnode->data;
|
||||||
|
|
||||||
|
if(t->count > ConfigFileEntry.throttle_count)
|
||||||
|
return 1;
|
||||||
|
|
||||||
|
/* Stop penalizing them after they've been throttled */
|
||||||
|
t->last = rb_current_time();
|
||||||
|
t->count++;
|
||||||
|
|
||||||
|
} else {
|
||||||
|
int bitlen = 32;
|
||||||
|
#ifdef RB_IPV6
|
||||||
|
if(GET_SS_FAMILY(addr) == AF_INET6)
|
||||||
|
bitlen = 128;
|
||||||
|
#endif
|
||||||
|
t = rb_malloc(sizeof(throttle_t));
|
||||||
|
t->last = rb_current_time();
|
||||||
|
t->count = 1;
|
||||||
|
pnode = make_and_lookup_ip(throttle_tree, addr, bitlen);
|
||||||
|
pnode->data = t;
|
||||||
|
rb_dlinkAdd(pnode, &t->node, &throttle_list);
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
throttle_expires(void *unused)
|
||||||
|
{
|
||||||
|
rb_dlink_node *ptr, *next;
|
||||||
|
rb_patricia_node_t *pnode;
|
||||||
|
throttle_t *t;
|
||||||
|
|
||||||
|
RB_DLINK_FOREACH_SAFE(ptr, next, throttle_list.head)
|
||||||
|
{
|
||||||
|
pnode = ptr->data;
|
||||||
|
t = pnode->data;
|
||||||
|
|
||||||
|
if(t->last + ConfigFileEntry.throttle_duration > rb_current_time())
|
||||||
|
continue;
|
||||||
|
|
||||||
|
rb_dlinkDelete(ptr, &throttle_list);
|
||||||
|
rb_free(t);
|
||||||
|
rb_patricia_remove(throttle_tree, pnode);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
get_global_count(struct sockaddr *addr)
|
||||||
|
{
|
||||||
|
rb_patricia_node_t *pnode;
|
||||||
|
global_t *glb;
|
||||||
|
|
||||||
|
if((pnode = rb_match_ip(global_tree, addr)))
|
||||||
|
{
|
||||||
|
glb = pnode->data;
|
||||||
|
return glb->count;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
inc_global_ip(struct sockaddr *addr, int bitlen)
|
||||||
|
{
|
||||||
|
rb_patricia_node_t *pnode;
|
||||||
|
global_t *glb;
|
||||||
|
|
||||||
|
|
||||||
|
if((pnode = rb_match_ip(global_tree, addr)))
|
||||||
|
{
|
||||||
|
glb = pnode->data;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
pnode = make_and_lookup_ip(global_tree, addr, bitlen);
|
||||||
|
glb = rb_malloc(sizeof(global_t));
|
||||||
|
pnode->data = glb;
|
||||||
|
}
|
||||||
|
glb->count++;
|
||||||
|
return glb->count;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
dec_global_ip(struct sockaddr *addr)
|
||||||
|
{
|
||||||
|
rb_patricia_node_t *pnode;
|
||||||
|
global_t *glb;
|
||||||
|
|
||||||
|
if((pnode = rb_match_ip(global_tree, addr)))
|
||||||
|
{
|
||||||
|
glb = pnode->data;
|
||||||
|
glb->count--;
|
||||||
|
if(glb->count == 0)
|
||||||
{
|
{
|
||||||
patricia_remove(unknown_tree, pnode);
|
rb_free(glb);
|
||||||
|
rb_patricia_remove(global_tree, pnode);
|
||||||
|
return;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
/* this can happen due to m_webirc.c's manipulations, for example */
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
inc_global_cidr_count(struct Client *client_p)
|
||||||
|
{
|
||||||
|
struct rb_sockaddr_storage ip;
|
||||||
|
struct sockaddr *addr;
|
||||||
|
int bitlen;
|
||||||
|
|
||||||
|
if(!MyClient(client_p))
|
||||||
|
{
|
||||||
|
if(EmptyString(client_p->sockhost) || !strcmp(client_p->sockhost, "0"))
|
||||||
|
return -1;
|
||||||
|
if(!rb_inet_pton_sock(client_p->sockhost, (struct sockaddr *)&ip))
|
||||||
|
return -1;
|
||||||
|
addr = (struct sockaddr *)&ip;
|
||||||
|
} else
|
||||||
|
addr = (struct sockaddr *)&client_p->localClient->ip;
|
||||||
|
#ifdef RB_IPV6
|
||||||
|
if(GET_SS_FAMILY(addr) == AF_INET6)
|
||||||
|
{
|
||||||
|
bitlen = ConfigFileEntry.global_cidr_ipv6_bitlen;
|
||||||
|
} else
|
||||||
|
#endif
|
||||||
|
bitlen = ConfigFileEntry.global_cidr_ipv4_bitlen;
|
||||||
|
|
||||||
|
return inc_global_ip(addr, bitlen);
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
dec_global_cidr_count(struct Client *client_p)
|
||||||
|
{
|
||||||
|
struct rb_sockaddr_storage ip;
|
||||||
|
struct sockaddr *addr;
|
||||||
|
if(!MyClient(client_p))
|
||||||
|
{
|
||||||
|
if(EmptyString(client_p->sockhost) || !strcmp(client_p->sockhost, "0"))
|
||||||
|
return;
|
||||||
|
if(!rb_inet_pton_sock(client_p->sockhost, (struct sockaddr *)&ip))
|
||||||
|
return;
|
||||||
|
addr = (struct sockaddr *)&ip;
|
||||||
|
} else
|
||||||
|
addr = (struct sockaddr *)&client_p->localClient->ip;
|
||||||
|
|
||||||
|
dec_global_ip(addr);
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
check_global_cidr_count(struct Client *client_p)
|
||||||
|
{
|
||||||
|
struct rb_sockaddr_storage ip;
|
||||||
|
struct sockaddr *addr;
|
||||||
|
int count, max;
|
||||||
|
if(!MyClient(client_p))
|
||||||
|
{
|
||||||
|
if(EmptyString(client_p->sockhost) || !strcmp(client_p->sockhost, "0"))
|
||||||
|
return -1;
|
||||||
|
if(!rb_inet_pton_sock(client_p->sockhost, (struct sockaddr *)&ip))
|
||||||
|
return -1;
|
||||||
|
addr = (struct sockaddr *)&ip;
|
||||||
|
} else
|
||||||
|
addr = (struct sockaddr *)&client_p->localClient->ip;
|
||||||
|
count = get_global_count(addr);
|
||||||
|
#ifdef RB_IPV6
|
||||||
|
if(GET_SS_FAMILY(addr) == AF_INET6)
|
||||||
|
max = ConfigFileEntry.global_cidr_ipv6_count;
|
||||||
|
else
|
||||||
|
#endif
|
||||||
|
max = ConfigFileEntry.global_cidr_ipv4_count;
|
||||||
|
if(count >= max)
|
||||||
|
return 1;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
clear_cidr_tree(void *data)
|
||||||
|
{
|
||||||
|
rb_free(data);
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
rehash_global_cidr_tree(void)
|
||||||
|
{
|
||||||
|
struct Client *client_p;
|
||||||
|
rb_dlink_node *ptr;
|
||||||
|
rb_clear_patricia(global_tree, clear_cidr_tree);
|
||||||
|
RB_DLINK_FOREACH(ptr, global_client_list.head)
|
||||||
|
{
|
||||||
|
client_p = ptr->data;
|
||||||
|
if(IsMe(client_p) && IsServer(client_p))
|
||||||
|
continue;
|
||||||
|
inc_global_cidr_count(client_p);
|
||||||
|
}
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue