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1338. [func] IPv6 synthesis is now performed for IP6.ARPA bit

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string queries.
This commit is contained in:
Mark Andrews 2002-07-24 11:53:52 +00:00
parent fa4e143801
commit b972ff033b
2 changed files with 36 additions and 1 deletions
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3
CHANGES
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@ -1,3 +1,6 @@
1338. [func] IPv6 synthesis is now performed for IP6.ARPA bit
string queries.
1337. [func] IPv6 synthesis is now performed for both IP6.ARPA
and IP6.INT nibble queries.

34
bin/named/query.c
View file

@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: query.c,v 1.228 2002/07/24 07:02:50 marka Exp $ */
/* $Id: query.c,v 1.229 2002/07/24 11:53:52 marka Exp $ */
#include <config.h>
@ -155,6 +155,12 @@ synth_rev_byaddrdone_bitstring(isc_task_t *task, isc_event_t *event);
static void
synth_rev_respond(ns_client_t *client, dns_byaddrevent_t *bevent);
static isc_result_t
nibbles2netaddr(dns_name_t *name, isc_netaddr_t *na);
static isc_result_t
bitstring2netaddr(dns_name_t *name, isc_netaddr_t *na);
/*
* Increment query statistics counters.
*/
@ -3566,6 +3572,17 @@ ns_query_start(ns_client_t *client) {
synth_rev_start(qclient);
return;
}
/* bitstring label + "ip6" + "arpa" + root */
if (dns_name_countlabels(client->query.qname) == 4 &&
dns_name_issubdomain(client->query.qname,
&ip6arpa_name) &&
bitstring2netaddr(client->query.qname,
&client->query.synth.na) == ISC_R_SUCCESS) {
qclient= NULL;
ns_client_attach(client, &qclient);
synth_rev_start(qclient);
return;
}
}
}
@ -3862,6 +3879,21 @@ nibbles2netaddr(dns_name_t *name, isc_netaddr_t *na) {
return (ISC_R_SUCCESS);
}
static isc_result_t
bitstring2netaddr(dns_name_t *name, isc_netaddr_t *na) {
struct in6_addr ina6;
isc_region_t label;
dns_name_getlabel(name, 0, &label);
if (label.length != 18 ||
label.base[0] != DNS_LABELTYPE_BITSTRING ||
label.base[1] != 128)
return (ISC_R_FAILURE);
memcpy(ina6.s6_addr, &label.base[2], 16);
isc_netaddr_fromin6(na, &ina6);
return (ISC_R_NOTIMPLEMENTED);
}
/*
* Generate a synthetic IPv6 reverse mapping response for the current
* query of 'client'.