int pass_through_rem(pass_through *ptlist, uint32_t *ptcnt,
pass_through *pt
#ifdef HAVE_PATRICIA
, patricia_tree_t *ptree
#endif
) {
uint32_t cnt = *ptcnt;
int i;
for (i=0; i < cnt; i++) {
if (pt_equal(&ptlist[i], pt)) {
if (_options.debug) {
syslog(LOG_DEBUG, "Uamallowed removing #%d: proto=%d host=%s port=%d",
i, pt->proto, inet_ntoa(pt->host), pt->port);
syslog(LOG_DEBUG, "Shifting uamallowed list %d to %d", i, cnt);
}
for (; i < cnt-1; i++)
memcpy(&ptlist[i], &ptlist[i+1], sizeof(pass_through));
*ptcnt = *ptcnt - 1;
break;
}
}
#ifdef HAVE_PATRICIA
if (ptree)
garden_patricia_rem(pt, ptree);
#endif
return 0;
}
int garden_patricia_add(pass_through * pt, patricia_tree_t * ptree)
{
uint32_t mask;
unsigned char count;
prefix_t *prefix;
patricia_node_t *pfx;
struct in_addr sin;
for (count = 0, mask = 0x80000000; mask != 0; mask >>= 1) {
if (pt->mask.s_addr & mask)
count++;
}
sin.s_addr = pt->host.s_addr;
prefix = patricia_prefix_new(AF_INET, &sin, count);
pfx = patricia_lookup(ptree, prefix);
if (pfx != NULL) {
struct node_pass_through_list *nd =
PATRICIA_DATA_GET(pfx, struct node_pass_through_list);
if (nd == NULL) {
nd = (struct node_pass_through_list *)
malloc(sizeof(struct node_pass_through_list) +
sizeof(pass_through));
if (nd) {
nd->ptcnt = 1;
memcpy(nd->ptlist, pt, sizeof(*pt));
}
} else {
int i;
for (i = 0; i < nd->ptcnt; i++) {
if (pt_equal(&nd->ptlist[i], pt)) {
log_dbg
("Uamallowed already exists #%d:%d: proto=%d host=%s port=%d",
i, nd->ptcnt, pt->proto,
inet_ntoa(pt->host), pt->port);
break;
}
}
if (i == nd->ptcnt) {
nd->ptcnt++;
nd = realloc(nd,
sizeof(struct
node_pass_through_list) +
(sizeof(pass_through) *
nd->ptcnt));
memcpy(&nd->ptlist[nd->ptcnt - 1], pt,
sizeof(*pt));
}
}
PATRICIA_DATA_SET(pfx, nd);
}
patricia_prefix_deref(prefix);
return 0;
}
int garden_patricia_rem(pass_through *pt, patricia_tree_t *ptree) {
uint32_t mask;
unsigned char count;
prefix_t *prefix;
patricia_node_t *pfx;
struct in_addr sin;
for (count = 0, mask = 0x80000000; mask != 0; mask >>= 1) {
if (pt->mask.s_addr & mask)
count++;
}
sin.s_addr = pt->host.s_addr;
prefix = patricia_prefix_new (AF_INET, &sin, count);
pfx = patricia_search_exact (ptree, prefix);
if (pfx != NULL) {
struct node_pass_through_list *
nd = PATRICIA_DATA_GET(pfx, struct node_pass_through_list);
if (nd != NULL) {
int i;
for (i=0; i < nd->ptcnt; i++) {
if (pt_equal(&nd->ptlist[i], pt)) {
if (_options.debug) {
syslog(LOG_DEBUG, "(Patricia)Uamallowed removing #%d:%d: proto=%d host=%s port=%d",
i, nd->ptcnt, pt->proto, inet_ntoa(pt->host), pt->port);
syslog(LOG_DEBUG, "Shifting uamallowed list %d to %d", i, nd->ptcnt);
}
for (; i < nd->ptcnt-1; i++)
memcpy(&nd->ptlist[i], &nd->ptlist[i+1], sizeof(pass_through));
nd->ptcnt--;
if (nd->ptcnt > 0) {
nd = realloc(nd,
sizeof(struct node_pass_through_list)+
(sizeof(pass_through)*nd->ptcnt));
PATRICIA_DATA_SET(pfx, nd);
} else {
free(nd);
patricia_remove (ptree, pfx);
}
break;
}
}
}
}
patricia_prefix_deref (prefix);
return 0;
}
int pass_through_add(pass_through *ptlist, uint32_t ptlen,
uint32_t *ptcnt, pass_through *pt,
char is_dyn
#ifdef HAVE_PATRICIA
, patricia_tree_t *ptree
#endif
) {
uint32_t cnt = *ptcnt;
int i;
for (i=0; i < cnt; i++) {
if (pt_equal(&ptlist[i], pt)) {
if (_options.debug)
syslog(LOG_DEBUG, "Uamallowed already exists #%d:%d: proto=%d host=%s port=%d",
i, ptlen, pt->proto, inet_ntoa(pt->host), pt->port);
if (is_dyn) {
if (_options.debug)
syslog(LOG_DEBUG, "Shifting uamallowed list %d to %d", i, cnt);
for (; i<cnt-1; i++)
memcpy(&ptlist[i], &ptlist[i+1], sizeof(pass_through));
cnt = *ptcnt = *ptcnt - 1;
break;
} else {
return 0;
}
}
}
if (cnt == ptlen) {
if (!is_dyn) {
if (_options.debug)
syslog(LOG_DEBUG, "No more room for walled garden entries");
return -1;
}
if (_options.debug)
syslog(LOG_DEBUG, "Shifting uamallowed list %d to %d", i, ptlen);
for (i=0; i<ptlen-1; i++)
memcpy(&ptlist[i], &ptlist[i+1], sizeof(pass_through));
cnt = *ptcnt = *ptcnt - 1;
}
if (_options.debug)
syslog(LOG_DEBUG, "Uamallowed IP address #%d:%d: proto=%d host=%s port=%d",
cnt, ptlen, pt->proto, inet_ntoa(pt->host), pt->port);
memcpy(&ptlist[cnt], pt, sizeof(pass_through));
*ptcnt = cnt + 1;
#ifdef HAVE_PATRICIA
if (ptree)
garden_patricia_add(pt, ptree);
#endif
return 0;
}