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rrset-order support.

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This commit is contained in:
Mark Andrews
2002-03-07 06:29:37 +00:00
parent 1fb264ed3a
commit f4ea263511
4 changed files with 251 additions and 3 deletions
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6
lib/dns/Makefile.in
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@@ -13,7 +13,7 @@
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
# $Id: Makefile.in,v 1.128 2001/10/01 18:54:00 gson Exp $
# $Id: Makefile.in,v 1.129 2002/03/07 06:29:36 marka Exp $
srcdir = @srcdir@
VPATH = @srcdir@
@@ -49,7 +49,7 @@ OBJS = a6.@O@ acl.@O@ adb.@O@ byaddr.@O@ \
dnssec.@O@ forward.@O@ journal.@O@ keytable.@O@ \
lib.@O@ log.@O@ lookup.@O@ \
master.@O@ masterdump.@O@ message.@O@ \
name.@O@ ncache.@O@ nxt.@O@ peer.@O@ \
name.@O@ ncache.@O@ nxt.@O@ order.@O@ peer.@O@ \
rbt.@O@ rbtdb.@O@ rbtdb64.@O@ rdata.@O@ rdatalist.@O@ \
rdataset.@O@ rdatasetiter.@O@ rdataslab.@O@ request.@O@ \
resolver.@O@ result.@O@ rootns.@O@ sdb.@O@ soa.@O@ ssu.@O@ \
@@ -65,7 +65,7 @@ SRCS = a6.c acl.c adb.c byaddr.c \
dnssec.c forward.c journal.c keytable.c \
lib.c log.c lookup.c \
master.c masterdump.c message.c \
name.c ncache.c nxt.c peer.c \
name.c ncache.c nxt.c order.c peer.c \
rbt.c rbtdb.c rbtdb64.c rdata.c rdatalist.c \
rdataset.c rdatasetiter.c rdataslab.c request.c \
resolver.c result.c rootns.c sdb.c soa.c ssu.c \

92
lib/dns/include/dns/order.h Normal file
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@@ -0,0 +1,92 @@
/*
* Copyright (C) 2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: order.h,v 1.1 2002/03/07 06:29:37 marka Exp $ */
#include <isc/lang.h>
#include <isc/types.h>
#include <dns/types.h>
ISC_LANG_BEGINDECLS
isc_result_t
dns_order_create(dns_order_t **orderp, isc_mem_t *mctx);
/*
* Create a order object.
*
* Requires:
* 'orderp' to be non NULL and '*orderp == NULL'.
* 'mctx' to be valid.
*
* Returns:
* ISC_R_SUCCESS
* ISC_R_NOMEMORY
*/
isc_result_t
dns_order_add(dns_order_t *order, dns_name_t *name,
dns_rdatatype_t rdtype, dns_rdataclass_t rdclass,
unsigned int mode);
/*
* Add a entry to the end of the order list.
*
* Requires:
* 'order' to be valid.
* 'name' to be valid.
* 'mode' to be one of DNS_RDATASERATTR_RANDOMIZE,
* DNS_RDATASERATTR_RANDOMIZE or zero (DNS_RDATASERATTR_CYCLIC).
*
* Returns:
* ISC_R_SUCCESS
* ISC_R_NOMEMORY
*/
unsigned int
dns_order_find(dns_order_t *order, dns_name_t *name,
dns_rdatatype_t rdtype, dns_rdataclass_t rdclass);
/*
* Find the first matching entry on the list.
*
* Requires:
* 'order' to be valid.
* 'name' to be valid.
*
* Returns the mode set by dns_order_add() or zero.
*/
void
dns_order_attach(dns_order_t *source, dns_order_t **target);
/*
* Attach to the 'source' object.
*
* Requires:
* 'source' to be valid.
* 'target' to be non NULL and '*target == NULL'.
*/
void
dns_order_detach(dns_order_t **orderp);
/*
* Detach from the object. Clean up if last this was the last
* reference.
*
* Requires:
* '*orderp' to be valid.
*/
ISC_LANG_ENDDECLS

154
lib/dns/order.c Normal file
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@@ -0,0 +1,154 @@
/*
* Copyright (C) 2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: order.c,v 1.1 2002/03/07 06:29:37 marka Exp $ */
#include <isc/magic.h>
#include <isc/mem.h>
#include <isc/types.h>
#include <isc/util.h>
#include <isc/refcount.h>
#include <dns/fixedname.h>
#include <dns/name.h>
#include <dns/order.h>
#include <dns/rdataset.h>
#include <dns/types.h>
typedef struct dns_order_ent dns_order_ent_t;
struct dns_order_ent {
dns_fixedname_t name;
dns_rdataclass_t rdclass;
dns_rdatatype_t rdtype;
unsigned int mode;
ISC_LINK(dns_order_ent_t) link;
};
struct dns_order {
unsigned int magic;
isc_refcount_t references;
ISC_LIST(dns_order_ent_t) ents;
isc_mem_t *mctx;
};
#define DNS_ORDER_MAGIC ISC_MAGIC('O','r','d','r')
#define DNS_ORDER_VALID(order) ISC_MAGIC_VALID(order, DNS_ORDER_MAGIC)
isc_result_t
dns_order_create(dns_order_t **orderp, isc_mem_t *mctx) {
dns_order_t *order;
REQUIRE(orderp != NULL && *orderp == NULL);
order = isc_mem_get(mctx, sizeof(*order));
if (order == NULL)
return (ISC_R_NOMEMORY);
ISC_LIST_INIT(order->ents);
isc_refcount_init(&order->references, 1); /* Implicit attach. */
order->mctx = 0;
isc_mem_attach(mctx, &order->mctx);
order->magic = DNS_ORDER_MAGIC;
return (ISC_R_SUCCESS);
}
isc_result_t
dns_order_add(dns_order_t *order, dns_name_t *name,
dns_rdatatype_t rdtype, dns_rdataclass_t rdclass,
unsigned int mode)
{
dns_order_ent_t *ent;
REQUIRE(DNS_ORDER_VALID(order));
REQUIRE(mode == DNS_RDATASETATTR_RANDOMIZE ||
mode == DNS_RDATASETATTR_FIXEDORDER ||
mode == 0 /* DNS_RDATASETATTY_CYCLIC */ );
ent = isc_mem_get(order->mctx, sizeof(*ent));
if (ent == NULL)
return (ISC_R_NOMEMORY);
dns_fixedname_init(&ent->name);
RUNTIME_CHECK(dns_name_copy(name, dns_fixedname_name(&ent->name), NULL)
== ISC_R_SUCCESS);
ent->rdtype = rdtype;
ent->rdclass = rdclass;
ent->mode = mode;
ISC_LINK_INIT(ent, link);
ISC_LIST_INITANDAPPEND(order->ents, ent, link);
return (ISC_R_SUCCESS);
}
static inline isc_boolean_t
match(dns_name_t *name1, dns_name_t *name2) {
if (dns_name_iswildcard(name2))
return(dns_name_matcheswildcard(name1, name2));
return (dns_name_equal(name1, name2));
}
unsigned int
dns_order_find(dns_order_t *order, dns_name_t *name,
dns_rdatatype_t rdtype, dns_rdataclass_t rdclass)
{
dns_order_ent_t *ent;
REQUIRE(DNS_ORDER_VALID(order));
for (ent = ISC_LIST_HEAD(order->ents);
ent != NULL;
ent = ISC_LIST_NEXT(ent, link)) {
if (ent->rdtype != rdtype && ent->rdtype != dns_rdatatype_any)
continue;
if (ent->rdclass != rdclass &&
ent->rdclass != dns_rdataclass_any)
continue;
if (match(name, dns_fixedname_name(&ent->name)))
return (ent->mode);
}
return (0);
}
void
dns_order_attach(dns_order_t *source, dns_order_t **target) {
REQUIRE(DNS_ORDER_VALID(source));
REQUIRE(target != NULL && *target == NULL);
isc_refcount_increment(&source->references, NULL);
*target = source;
}
void
dns_order_detach(dns_order_t **orderp) {
dns_order_t *order;
dns_order_ent_t *ent;
unsigned int references;
REQUIRE(orderp != NULL);
order = *orderp;
REQUIRE(DNS_ORDER_VALID(order));
isc_refcount_decrement(&order->references, &references);
*orderp = NULL;
if (references != 0)
return;
order->magic = 0;
while ((ent = ISC_LIST_HEAD(order->ents)) != NULL) {
ISC_LIST_UNLINK(order->ents, ent, link);
isc_mem_put(order->mctx, ent, sizeof(*ent));
}
isc_refcount_destroy(&order->references);
isc_mem_putanddetach(&order->mctx, order, sizeof(*order));
}

2
util/copyrights
View File

@@ -1647,6 +1647,7 @@
./lib/dns/include/dns/name.h C 1998,1999,2000,2001,2002
./lib/dns/include/dns/ncache.h C 1999,2000,2001,2002
./lib/dns/include/dns/nxt.h C 1999,2000,2001
./lib/dns/include/dns/order.h C 2002
./lib/dns/include/dns/peer.h C 2000,2001
./lib/dns/include/dns/rbt.h C 1999,2000,2001
./lib/dns/include/dns/rcode.h C 1999,2000,2001
@@ -1692,6 +1693,7 @@
./lib/dns/name.c C 1998,1999,2000,2001
./lib/dns/ncache.c C 1999,2000,2001,2002
./lib/dns/nxt.c C 1999,2000,2001
./lib/dns/order.c C 2002
./lib/dns/peer.c C 2000,2001
./lib/dns/rbt.c C 1999,2000,2001
./lib/dns/rbtdb.c C 1999,2000,2001