From ec2c5e4398f9d65e5dfe61530f2556224733d1e6 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Thu, 31 Jul 2014 17:46:40 +0200 Subject: resolved: implement LLMNR uniqueness verification --- src/resolve/resolved-dns-zone.h | 38 ++++++++++++++++++++++++++++++++++---- 1 file changed, 34 insertions(+), 4 deletions(-) (limited to 'src/resolve/resolved-dns-zone.h') diff --git a/src/resolve/resolved-dns-zone.h b/src/resolve/resolved-dns-zone.h index b2af028cfc..bf93ab43fb 100644 --- a/src/resolve/resolved-dns-zone.h +++ b/src/resolve/resolved-dns-zone.h @@ -28,16 +28,46 @@ typedef struct DnsZone { Hashmap *by_name; } DnsZone; +typedef struct DnsZoneItem DnsZoneItem; +typedef enum DnsZoneItemState DnsZoneItemState; + #include "resolved-dns-rr.h" #include "resolved-dns-question.h" #include "resolved-dns-answer.h" +#include "resolved-dns-transaction.h" + +/* RFC 4795 Section 2.8. suggests a TTL of 30s by default */ +#define LLMNR_DEFAULT_TTL (30) + +enum DnsZoneItemState { + DNS_ZONE_ITEM_PROBING, + DNS_ZONE_ITEM_ESTABLISHED, + DNS_ZONE_ITEM_VERIFYING, + DNS_ZONE_ITEM_WITHDRAWN, +}; + +struct DnsZoneItem { + DnsScope *scope; + DnsResourceRecord *rr; + + DnsZoneItemState state; + + unsigned block_ready; + + bool probing_enabled; + + LIST_FIELDS(DnsZoneItem, by_key); + LIST_FIELDS(DnsZoneItem, by_name); + + DnsTransaction *probe_transaction; +}; void dns_zone_flush(DnsZone *z); -int dns_zone_put(DnsZone *z, DnsResourceRecord *rr); +int dns_zone_put(DnsZone *z, DnsScope *s, DnsResourceRecord *rr, bool probe); void dns_zone_remove_rr(DnsZone *z, DnsResourceRecord *rr); -int dns_zone_lookup(DnsZone *z, DnsQuestion *q, DnsAnswer **answer, DnsAnswer **soa); +int dns_zone_lookup(DnsZone *z, DnsQuestion *q, DnsAnswer **answer, DnsAnswer **soa, bool *tentative); -/* RFC 4795 Section 2.8. suggests a TTL of 30s by default */ -#define LLMNR_DEFAULT_TTL (30) +void dns_zone_item_conflict(DnsZoneItem *i); +void dns_zone_item_ready(DnsZoneItem *i); -- cgit v1.2.3-54-g00ecf