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Code Issues Releases Wiki Activity

removed more needless attaching and detaching of the blackhole ACL

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This commit is contained in:
Andreas Gustafsson
2001-02-09 00:23:16 +00:00
parent b7f7a77d56
commit 97f26b88f6
4 changed files with 20 additions and 25 deletions
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13
lib/dns/dispatch.c
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/ */
/* $Id: dispatch.c,v 1.91 2001/02/08 18:25:09 gson Exp $ */ /* $Id: dispatch.c,v 1.92 2001/02/09 00:23:12 gson Exp $ */
#include <config.h> #include <config.h>
@@ -1121,15 +1121,10 @@ dns_dispatchmgr_setblackhole(dns_dispatchmgr_t *mgr, dns_acl_t *blackhole) {
dns_acl_attach(blackhole, &mgr->blackhole); dns_acl_attach(blackhole, &mgr->blackhole);
} }
isc_result_t dns_acl_t *
dns_dispatchmgr_getblackhole(dns_dispatchmgr_t *mgr, dns_acl_t **blackholep) { dns_dispatchmgr_getblackhole(dns_dispatchmgr_t *mgr) {
REQUIRE(VALID_DISPATCHMGR(mgr)); REQUIRE(VALID_DISPATCHMGR(mgr));
REQUIRE(blackholep != NULL && *blackholep == NULL); return (mgr->blackhole);
if (mgr->blackhole == NULL)
return (ISC_R_NOTFOUND);
dns_acl_attach(mgr->blackhole, blackholep);
return (ISC_R_SUCCESS);
} }
static isc_result_t static isc_result_t

17
lib/dns/include/dns/dispatch.h
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/ */
/* $Id: dispatch.h,v 1.40 2001/02/07 05:11:58 bwelling Exp $ */ /* $Id: dispatch.h,v 1.41 2001/02/09 00:23:16 gson Exp $ */
#ifndef DNS_DISPATCH_H #ifndef DNS_DISPATCH_H
#define DNS_DISPATCH_H 1 #define DNS_DISPATCH_H 1
@@ -157,8 +157,8 @@ dns_dispatchmgr_destroy(dns_dispatchmgr_t **mgrp);
void void
dns_dispatchmgr_setblackhole(dns_dispatchmgr_t *mgr, dns_acl_t *blackhole); dns_dispatchmgr_setblackhole(dns_dispatchmgr_t *mgr, dns_acl_t *blackhole);
/* /*
* Sets the list of addresses that will be blackholed (ignored) * Sets the dispatcher's "blackhole list," a list of addresses that will
* by all dispatchers created by the dispatchmgr. * be ignored by all dispatchers created by the dispatchmgr.
* *
* Requires: * Requires:
* mgrp is a valid dispatchmgr * mgrp is a valid dispatchmgr
@@ -166,15 +166,16 @@ dns_dispatchmgr_setblackhole(dns_dispatchmgr_t *mgr, dns_acl_t *blackhole);
*/ */
isc_result_t dns_acl_t *
dns_dispatchmgr_getblackhole(dns_dispatchmgr_t *mgr, dns_acl_t **blackholep); dns_dispatchmgr_getblackhole(dns_dispatchmgr_t *mgr);
/* /*
* Gets the list of addresses that will be blackholed (ignored) * Gets a pointer to the dispatcher's current blackhole list,
* by all dispatchers created by the dispatchmgr. * without incrementing its reference count.
* *
* Requires: * Requires:
* mgr is a valid dispatchmgr * mgr is a valid dispatchmgr
* blackholep != NULL && *blackholep == NULL * Returns:
* A pointer to the current blackhole list, or NULL.
*/ */
isc_result_t isc_result_t

7
lib/dns/request.c
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/ */
/* $Id: request.c,v 1.54 2001/01/27 02:28:32 bwelling Exp $ */ /* $Id: request.c,v 1.55 2001/02/09 00:23:14 gson Exp $ */
#include <config.h> #include <config.h>
@@ -467,20 +467,19 @@ new_request(isc_mem_t *mctx, dns_request_t **requestp) {
static isc_boolean_t static isc_boolean_t
isblackholed(dns_dispatchmgr_t *dispatchmgr, isc_sockaddr_t *destaddr) { isblackholed(dns_dispatchmgr_t *dispatchmgr, isc_sockaddr_t *destaddr) {
dns_acl_t *blackhole = NULL; dns_acl_t *blackhole;
isc_netaddr_t netaddr; isc_netaddr_t netaddr;
int match; int match;
isc_boolean_t drop = ISC_FALSE; isc_boolean_t drop = ISC_FALSE;
char netaddrstr[ISC_NETADDR_FORMATSIZE]; char netaddrstr[ISC_NETADDR_FORMATSIZE];
(void)dns_dispatchmgr_getblackhole(dispatchmgr, &blackhole); blackhole = dns_dispatchmgr_getblackhole(dispatchmgr);
if (blackhole != NULL) { if (blackhole != NULL) {
isc_netaddr_fromsockaddr(&netaddr, destaddr); isc_netaddr_fromsockaddr(&netaddr, destaddr);
if (dns_acl_match(&netaddr, NULL, blackhole, if (dns_acl_match(&netaddr, NULL, blackhole,
NULL, &match, NULL) == ISC_R_SUCCESS && NULL, &match, NULL) == ISC_R_SUCCESS &&
match > 0) match > 0)
drop = ISC_TRUE; drop = ISC_TRUE;
dns_acl_detach(&blackhole);
} }
if (drop) { if (drop) {
isc_netaddr_format(&netaddr, netaddrstr, sizeof(netaddrstr)); isc_netaddr_format(&netaddr, netaddrstr, sizeof(netaddrstr));

8
lib/dns/resolver.c
View File

@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/ */
/* $Id: resolver.c,v 1.199 2001/02/09 00:13:53 gson Exp $ */ /* $Id: resolver.c,v 1.200 2001/02/09 00:23:13 gson Exp $ */
#include <config.h> #include <config.h>
@@ -850,7 +850,7 @@ resquery_send(resquery_t *query) {
isc_buffer_t *buffer; isc_buffer_t *buffer;
isc_netaddr_t ipaddr; isc_netaddr_t ipaddr;
dns_tsigkey_t *tsigkey = NULL; dns_tsigkey_t *tsigkey = NULL;
dns_acl_t *blackhole = NULL; dns_acl_t *blackhole;
dns_peer_t *peer = NULL; dns_peer_t *peer = NULL;
isc_boolean_t bogus; isc_boolean_t bogus;
isc_boolean_t aborted = ISC_FALSE; isc_boolean_t aborted = ISC_FALSE;
@@ -1039,7 +1039,8 @@ resquery_send(resquery_t *query) {
address = &query->addrinfo->sockaddr; address = &query->addrinfo->sockaddr;
isc_buffer_usedregion(buffer, &r); isc_buffer_usedregion(buffer, &r);
(void)dns_dispatchmgr_getblackhole(query->dispatchmgr, &blackhole);
blackhole = dns_dispatchmgr_getblackhole(query->dispatchmgr);
if (blackhole != NULL) { if (blackhole != NULL) {
int match; int match;
@@ -1047,7 +1048,6 @@ resquery_send(resquery_t *query) {
NULL, &match, NULL) == ISC_R_SUCCESS && NULL, &match, NULL) == ISC_R_SUCCESS &&
match > 0) match > 0)
aborted = ISC_TRUE; aborted = ISC_TRUE;
dns_acl_detach(&blackhole);
} }
peer = NULL; peer = NULL;