resolved: fix the rcode to SUCCESS if we find at least one matching RR in a DNS response

[thirdparty/systemd.git] / src / resolve / resolved-dns-dnssec.h

diff --git a/src/resolve/resolved-dns-dnssec.h b/src/resolve/resolved-dns-dnssec.h
index f33abe3e11a81c92da6c2171853c87585b24e1c3..c99861b8e5260cd26f3f9d1b07193ac15429f445 100644 (file)
--- a/src/resolve/resolved-dns-dnssec.h
+++ b/src/resolve/resolved-dns-dnssec.h
@@ -21,30 +21,17 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-typedef enum DnssecMode DnssecMode;
 typedef enum DnssecResult DnssecResult;
+typedef enum DnssecVerdict DnssecVerdict;
 
 #include "dns-domain.h"
 #include "resolved-dns-answer.h"
 #include "resolved-dns-rr.h"
 
-enum DnssecMode {
-        /* No DNSSEC validation is done */
-        DNSSEC_NO,
-
-        /* Trust the AD bit sent by the server. UNSAFE! */
-        DNSSEC_TRUST,
-
-        /* Validate locally, if the server knows DO, but if not, don't. Don't trust the AD bit */
-        DNSSEC_YES,
-
-        _DNSSEC_MODE_MAX,
-        _DNSSEC_MODE_INVALID = -1
-};
-
 enum DnssecResult {
-        /* These four are returned by dnssec_verify_rrset() */
+        /* These five are returned by dnssec_verify_rrset() */
         DNSSEC_VALIDATED,
+        DNSSEC_VALIDATED_WILDCARD, /* Validated via a wildcard RRSIG, further NSEC/NSEC3 checks necessary */
         DNSSEC_INVALID,
         DNSSEC_SIGNATURE_EXPIRED,
         DNSSEC_UNSUPPORTED_ALGORITHM,
@@ -56,27 +43,63 @@ enum DnssecResult {
         /* These two are added by the DnsTransaction logic */
         DNSSEC_UNSIGNED,
         DNSSEC_FAILED_AUXILIARY,
+        DNSSEC_NSEC_MISMATCH,
+        DNSSEC_INCOMPATIBLE_SERVER,
+
         _DNSSEC_RESULT_MAX,
         _DNSSEC_RESULT_INVALID = -1
 };
 
+enum DnssecVerdict {
+        DNSSEC_SECURE,
+        DNSSEC_INSECURE,
+        DNSSEC_BOGUS,
+        DNSSEC_INDETERMINATE,
+
+        _DNSSEC_VERDICT_MAX,
+        _DNSSEC_VERDICT_INVALID = -1
+};
+
 #define DNSSEC_CANONICAL_HOSTNAME_MAX (DNS_HOSTNAME_MAX + 2)
 
-int dnssec_rrsig_match_dnskey(DnsResourceRecord *rrsig, DnsResourceRecord *dnskey);
-int dnssec_key_match_rrsig(DnsResourceKey *key, DnsResourceRecord *rrsig);
+/* The longest digest we'll ever generate, of all digest algorithms we support */
+#define DNSSEC_HASH_SIZE_MAX (MAX(20, 32))
+
+int dnssec_rrsig_match_dnskey(DnsResourceRecord *rrsig, DnsResourceRecord *dnskey, bool revoked_ok);
+int dnssec_key_match_rrsig(const DnsResourceKey *key, DnsResourceRecord *rrsig);
 
-int dnssec_verify_rrset(DnsAnswer *answer, DnsResourceKey *key, DnsResourceRecord *rrsig, DnsResourceRecord *dnskey, usec_t realtime, DnssecResult *result);
-int dnssec_verify_rrset_search(DnsAnswer *answer, DnsResourceKey *key, DnsAnswer *validated_dnskeys, usec_t realtime, DnssecResult *result);
+int dnssec_verify_rrset(DnsAnswer *answer, const DnsResourceKey *key, DnsResourceRecord *rrsig, DnsResourceRecord *dnskey, usec_t realtime, DnssecResult *result);
+int dnssec_verify_rrset_search(DnsAnswer *answer, const DnsResourceKey *key, DnsAnswer *validated_dnskeys, usec_t realtime, DnssecResult *result, DnsResourceRecord **rrsig);
 
-int dnssec_verify_dnskey(DnsResourceRecord *dnskey, DnsResourceRecord *ds);
-int dnssec_verify_dnskey_search(DnsResourceRecord *dnskey, DnsAnswer *validated_ds);
+int dnssec_verify_dnskey_by_ds(DnsResourceRecord *dnskey, DnsResourceRecord *ds, bool mask_revoke);
+int dnssec_verify_dnskey_by_ds_search(DnsResourceRecord *dnskey, DnsAnswer *validated_ds);
 
-uint16_t dnssec_keytag(DnsResourceRecord *dnskey);
+int dnssec_has_rrsig(DnsAnswer *a, const DnsResourceKey *key);
+
+uint16_t dnssec_keytag(DnsResourceRecord *dnskey, bool mask_revoke);
 
 int dnssec_canonicalize(const char *n, char *buffer, size_t buffer_max);
 
-const char* dnssec_mode_to_string(DnssecMode m) _const_;
-DnssecMode dnssec_mode_from_string(const char *s) _pure_;
+int dnssec_nsec3_hash(DnsResourceRecord *nsec3, const char *name, void *ret);
+
+typedef enum DnssecNsecResult {
+        DNSSEC_NSEC_NO_RR,     /* No suitable NSEC/NSEC3 RR found */
+        DNSSEC_NSEC_CNAME,     /* Didn't find what was asked for, but did find CNAME */
+        DNSSEC_NSEC_UNSUPPORTED_ALGORITHM,
+        DNSSEC_NSEC_NXDOMAIN,
+        DNSSEC_NSEC_NODATA,
+        DNSSEC_NSEC_FOUND,
+        DNSSEC_NSEC_OPTOUT,
+} DnssecNsecResult;
+
+int dnssec_nsec_test(DnsAnswer *answer, DnsResourceKey *key, DnssecNsecResult *result, bool *authenticated, uint32_t *ttl);
+
+int dnssec_nsec_test_enclosed(DnsAnswer *answer, uint16_t type, const char *name, const char *zone, bool *authenticated);
+
+int dnssec_test_positive_wildcard(DnsAnswer *a, const char *name, const char *source, const char *zone, bool *authenticated);
 
 const char* dnssec_result_to_string(DnssecResult m) _const_;
 DnssecResult dnssec_result_from_string(const char *s) _pure_;
+
+const char* dnssec_verdict_to_string(DnssecVerdict m) _const_;
+DnssecVerdict dnssec_verdict_from_string(const char *s) _pure_;