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resolve: field size in dns resource record may be zero

This commit is contained in:
Yu Watanabe 2020-12-30 01:48:35 +09:00
parent 0b71a7e01d
commit b652cccab9
1 changed files with 10 additions and 10 deletions
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20
src/resolve/resolved-dns-rr.c
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@ -1369,7 +1369,7 @@ void dns_resource_record_hash_func(const DnsResourceRecord *rr, struct siphash *
DnsTxtItem *j;
LIST_FOREACH(items, j, rr->txt.items) {
siphash24_compress(j->data, j->length, state);
siphash24_compress_safe(j->data, j->length, state);
/* Add an extra NUL byte, so that "a" followed by "b" doesn't result in the same hash as "ab"
* followed by "". */
@ -1414,14 +1414,14 @@ void dns_resource_record_hash_func(const DnsResourceRecord *rr, struct siphash *
case DNS_TYPE_SSHFP:
siphash24_compress(&rr->sshfp.algorithm, sizeof(rr->sshfp.algorithm), state);
siphash24_compress(&rr->sshfp.fptype, sizeof(rr->sshfp.fptype), state);
siphash24_compress(rr->sshfp.fingerprint, rr->sshfp.fingerprint_size, state);
siphash24_compress_safe(rr->sshfp.fingerprint, rr->sshfp.fingerprint_size, state);
break;
case DNS_TYPE_DNSKEY:
siphash24_compress(&rr->dnskey.flags, sizeof(rr->dnskey.flags), state);
siphash24_compress(&rr->dnskey.protocol, sizeof(rr->dnskey.protocol), state);
siphash24_compress(&rr->dnskey.algorithm, sizeof(rr->dnskey.algorithm), state);
siphash24_compress(rr->dnskey.key, rr->dnskey.key_size, state);
siphash24_compress_safe(rr->dnskey.key, rr->dnskey.key_size, state);
break;
case DNS_TYPE_RRSIG:
@ -1433,7 +1433,7 @@ void dns_resource_record_hash_func(const DnsResourceRecord *rr, struct siphash *
siphash24_compress(&rr->rrsig.inception, sizeof(rr->rrsig.inception), state);
siphash24_compress(&rr->rrsig.key_tag, sizeof(rr->rrsig.key_tag), state);
dns_name_hash_func(rr->rrsig.signer, state);
siphash24_compress(rr->rrsig.signature, rr->rrsig.signature_size, state);
siphash24_compress_safe(rr->rrsig.signature, rr->rrsig.signature_size, state);
break;
case DNS_TYPE_NSEC:
@ -1447,15 +1447,15 @@ void dns_resource_record_hash_func(const DnsResourceRecord *rr, struct siphash *
siphash24_compress(&rr->ds.key_tag, sizeof(rr->ds.key_tag), state);
siphash24_compress(&rr->ds.algorithm, sizeof(rr->ds.algorithm), state);
siphash24_compress(&rr->ds.digest_type, sizeof(rr->ds.digest_type), state);
siphash24_compress(rr->ds.digest, rr->ds.digest_size, state);
siphash24_compress_safe(rr->ds.digest, rr->ds.digest_size, state);
break;
case DNS_TYPE_NSEC3:
siphash24_compress(&rr->nsec3.algorithm, sizeof(rr->nsec3.algorithm), state);
siphash24_compress(&rr->nsec3.flags, sizeof(rr->nsec3.flags), state);
siphash24_compress(&rr->nsec3.iterations, sizeof(rr->nsec3.iterations), state);
siphash24_compress(rr->nsec3.salt, rr->nsec3.salt_size, state);
siphash24_compress(rr->nsec3.next_hashed_name, rr->nsec3.next_hashed_name_size, state);
siphash24_compress_safe(rr->nsec3.salt, rr->nsec3.salt_size, state);
siphash24_compress_safe(rr->nsec3.next_hashed_name, rr->nsec3.next_hashed_name_size, state);
/* FIXME: We leave the bitmaps out */
break;
@ -1463,18 +1463,18 @@ void dns_resource_record_hash_func(const DnsResourceRecord *rr, struct siphash *
siphash24_compress(&rr->tlsa.cert_usage, sizeof(rr->tlsa.cert_usage), state);
siphash24_compress(&rr->tlsa.selector, sizeof(rr->tlsa.selector), state);
siphash24_compress(&rr->tlsa.matching_type, sizeof(rr->tlsa.matching_type), state);
siphash24_compress(rr->tlsa.data, rr->tlsa.data_size, state);
siphash24_compress_safe(rr->tlsa.data, rr->tlsa.data_size, state);
break;
case DNS_TYPE_CAA:
siphash24_compress(&rr->caa.flags, sizeof(rr->caa.flags), state);
string_hash_func(rr->caa.tag, state);
siphash24_compress(rr->caa.value, rr->caa.value_size, state);
siphash24_compress_safe(rr->caa.value, rr->caa.value_size, state);
break;
case DNS_TYPE_OPENPGPKEY:
default:
siphash24_compress(rr->generic.data, rr->generic.data_size, state);
siphash24_compress_safe(rr->generic.data, rr->generic.data_size, state);
break;
}
}