diff options
Diffstat (limited to 'src/resolve/resolved-dns-rr.c')
-rw-r--r-- | src/resolve/resolved-dns-rr.c | 184 |
1 files changed, 143 insertions, 41 deletions
diff --git a/src/resolve/resolved-dns-rr.c b/src/resolve/resolved-dns-rr.c index 7273ef3825..783ec7516c 100644 --- a/src/resolve/resolved-dns-rr.c +++ b/src/resolve/resolved-dns-rr.c @@ -25,11 +25,13 @@ #include "dns-domain.h" #include "dns-type.h" #include "hexdecoct.h" +#include "resolved-dns-dnssec.h" #include "resolved-dns-packet.h" #include "resolved-dns-rr.h" #include "string-table.h" #include "string-util.h" #include "strv.h" +#include "terminal-util.h" DnsResourceKey* dns_resource_key_new(uint16_t class, uint16_t type, const char *name) { DnsResourceKey *k; @@ -486,6 +488,11 @@ DnsResourceRecord* dns_resource_record_unref(DnsResourceRecord *rr) { case DNS_TYPE_AAAA: break; + case DNS_TYPE_TLSA: + free(rr->tlsa.data); + break; + + case DNS_TYPE_OPENPGPKEY: default: free(rr->generic.data); } @@ -564,6 +571,10 @@ int dns_resource_record_new_address(DnsResourceRecord **ret, int family, const u return 0; } +#define FIELD_EQUAL(a, b, field) \ + ((a).field ## _size == (b).field ## _size && \ + memcmp((a).field, (b).field, (a).field ## _size) == 0) + int dns_resource_record_equal(const DnsResourceRecord *a, const DnsResourceRecord *b) { int r; @@ -645,36 +656,30 @@ int dns_resource_record_equal(const DnsResourceRecord *a, const DnsResourceRecor return a->ds.key_tag == b->ds.key_tag && a->ds.algorithm == b->ds.algorithm && a->ds.digest_type == b->ds.digest_type && - a->ds.digest_size == b->ds.digest_size && - memcmp(a->ds.digest, b->ds.digest, a->ds.digest_size) == 0; + FIELD_EQUAL(a->ds, b->ds, digest); case DNS_TYPE_SSHFP: return a->sshfp.algorithm == b->sshfp.algorithm && a->sshfp.fptype == b->sshfp.fptype && - a->sshfp.fingerprint_size == b->sshfp.fingerprint_size && - memcmp(a->sshfp.fingerprint, b->sshfp.fingerprint, a->sshfp.fingerprint_size) == 0; + FIELD_EQUAL(a->sshfp, b->sshfp, fingerprint); case DNS_TYPE_DNSKEY: return a->dnskey.flags == b->dnskey.flags && a->dnskey.protocol == b->dnskey.protocol && a->dnskey.algorithm == b->dnskey.algorithm && - a->dnskey.key_size == b->dnskey.key_size && - memcmp(a->dnskey.key, b->dnskey.key, a->dnskey.key_size) == 0; + FIELD_EQUAL(a->dnskey, b->dnskey, key); case DNS_TYPE_RRSIG: /* do the fast comparisons first */ - if (a->rrsig.type_covered != b->rrsig.type_covered || - a->rrsig.algorithm != b->rrsig.algorithm || - a->rrsig.labels != b->rrsig.labels || - a->rrsig.original_ttl != b->rrsig.original_ttl || - a->rrsig.expiration != b->rrsig.expiration || - a->rrsig.inception != b->rrsig.inception || - a->rrsig.key_tag != b->rrsig.key_tag || - a->rrsig.signature_size != b->rrsig.signature_size || - memcmp(a->rrsig.signature, b->rrsig.signature, a->rrsig.signature_size) != 0) - return false; - - return dns_name_equal(a->rrsig.signer, b->rrsig.signer); + return a->rrsig.type_covered == b->rrsig.type_covered && + a->rrsig.algorithm == b->rrsig.algorithm && + a->rrsig.labels == b->rrsig.labels && + a->rrsig.original_ttl == b->rrsig.original_ttl && + a->rrsig.expiration == b->rrsig.expiration && + a->rrsig.inception == b->rrsig.inception && + a->rrsig.key_tag == b->rrsig.key_tag && + FIELD_EQUAL(a->rrsig, b->rrsig, signature) && + dns_name_equal(a->rrsig.signer, b->rrsig.signer); case DNS_TYPE_NSEC: return dns_name_equal(a->nsec.next_domain_name, b->nsec.next_domain_name) && @@ -682,16 +687,20 @@ int dns_resource_record_equal(const DnsResourceRecord *a, const DnsResourceRecor case DNS_TYPE_NSEC3: return a->nsec3.algorithm == b->nsec3.algorithm && - a->nsec3.flags == b->nsec3.flags && - a->nsec3.iterations == b->nsec3.iterations && - a->nsec3.salt_size == b->nsec3.salt_size && - memcmp(a->nsec3.salt, b->nsec3.salt, a->nsec3.salt_size) == 0 && - memcmp(a->nsec3.next_hashed_name, b->nsec3.next_hashed_name, a->nsec3.next_hashed_name_size) == 0 && - bitmap_equal(a->nsec3.types, b->nsec3.types); + a->nsec3.flags == b->nsec3.flags && + a->nsec3.iterations == b->nsec3.iterations && + FIELD_EQUAL(a->nsec3, b->nsec3, salt) && + FIELD_EQUAL(a->nsec3, b->nsec3, next_hashed_name) && + bitmap_equal(a->nsec3.types, b->nsec3.types); + + case DNS_TYPE_TLSA: + return a->tlsa.cert_usage == b->tlsa.cert_usage && + a->tlsa.selector == b->tlsa.selector && + a->tlsa.matching_type == b->tlsa.matching_type && + FIELD_EQUAL(a->tlsa, b->tlsa, data); default: - return a->generic.size == b->generic.size && - memcmp(a->generic.data, b->generic.data, a->generic.size) == 0; + return FIELD_EQUAL(a->generic, b->generic, data); } } @@ -958,23 +967,47 @@ const char *dns_resource_record_to_string(DnsResourceRecord *rr) { case DNS_TYPE_DNSKEY: { _cleanup_free_ char *alg = NULL; + char *ss; + int n, n1; + uint16_t key_tag; + + key_tag = dnssec_keytag(rr, true); r = dnssec_algorithm_to_string_alloc(rr->dnskey.algorithm, &alg); if (r < 0) return NULL; - t = base64mem(rr->dnskey.key, rr->dnskey.key_size); - if (!t) - return NULL; - - r = asprintf(&s, "%s %u %u %s %s", + r = asprintf(&s, "%s %n%u %u %s %n", k, + &n1, rr->dnskey.flags, rr->dnskey.protocol, alg, - t); + &n); + if (r < 0) + return NULL; + + r = base64_append(&s, n, + rr->dnskey.key, rr->dnskey.key_size, + 8, columns()); if (r < 0) return NULL; + + r = asprintf(&ss, "%s\n" + "%*s-- Flags:%s%s%s\n" + "%*s-- Key tag: %u", + s, + n1, "", + rr->dnskey.flags & DNSKEY_FLAG_SEP ? " SEP" : "", + rr->dnskey.flags & DNSKEY_FLAG_REVOKE ? " REVOKE" : "", + rr->dnskey.flags & DNSKEY_FLAG_ZONE_KEY ? " ZONE_KEY" : "", + n1, "", + key_tag); + if (r < 0) + return NULL; + free(s); + s = ss; + break; } @@ -982,6 +1015,7 @@ const char *dns_resource_record_to_string(DnsResourceRecord *rr) { _cleanup_free_ char *alg = NULL; char expiration[strlen("YYYYMMDDHHmmSS") + 1], inception[strlen("YYYYMMDDHHmmSS") + 1]; const char *type; + int n; type = dns_type_to_string(rr->rrsig.type_covered); @@ -989,10 +1023,6 @@ const char *dns_resource_record_to_string(DnsResourceRecord *rr) { if (r < 0) return NULL; - t = base64mem(rr->rrsig.signature, rr->rrsig.signature_size); - if (!t) - return NULL; - r = format_timestamp_dns(expiration, sizeof(expiration), rr->rrsig.expiration); if (r < 0) return NULL; @@ -1004,7 +1034,7 @@ const char *dns_resource_record_to_string(DnsResourceRecord *rr) { /* TYPE?? follows * http://tools.ietf.org/html/rfc3597#section-5 */ - r = asprintf(&s, "%s %s%.*u %s %u %u %s %s %u %s %s", + r = asprintf(&s, "%s %s%.*u %s %u %u %s %s %u %s %n", k, type ?: "TYPE", type ? 0 : 1, type ? 0u : (unsigned) rr->rrsig.type_covered, @@ -1015,9 +1045,16 @@ const char *dns_resource_record_to_string(DnsResourceRecord *rr) { inception, rr->rrsig.key_tag, rr->rrsig.signer, - t); + &n); if (r < 0) return NULL; + + r = base64_append(&s, n, + rr->rrsig.signature, rr->rrsig.signature_size, + 8, columns()); + if (r < 0) + return NULL; + break; } @@ -1065,13 +1102,70 @@ const char *dns_resource_record_to_string(DnsResourceRecord *rr) { break; } + case DNS_TYPE_TLSA: { + const char *cert_usage, *selector, *matching_type; + char *ss; + int n; + + cert_usage = tlsa_cert_usage_to_string(rr->tlsa.cert_usage); + selector = tlsa_selector_to_string(rr->tlsa.selector); + matching_type = tlsa_matching_type_to_string(rr->tlsa.matching_type); + + r = asprintf(&s, "%s %u %u %u %n", + k, + rr->tlsa.cert_usage, + rr->tlsa.selector, + rr->tlsa.matching_type, + &n); + if (r < 0) + return NULL; + + r = base64_append(&s, n, + rr->tlsa.data, rr->tlsa.data_size, + 8, columns()); + if (r < 0) + return NULL; + + r = asprintf(&ss, "%s\n" + "%*s-- Cert. usage: %s\n" + "%*s-- Selector: %s\n" + "%*s-- Matching type: %s", + s, + n - 6, "", cert_usage, + n - 6, "", selector, + n - 6, "", matching_type); + if (r < 0) + return NULL; + free(s); + s = ss; + + break; + } + + case DNS_TYPE_OPENPGPKEY: { + int n; + + r = asprintf(&s, "%s %n", + k, + &n); + if (r < 0) + return NULL; + + r = base64_append(&s, n, + rr->generic.data, rr->generic.data_size, + 8, columns()); + if (r < 0) + return NULL; + break; + } + default: - t = hexmem(rr->generic.data, rr->generic.size); + t = hexmem(rr->generic.data, rr->generic.data_size); if (!t) return NULL; /* Format as documented in RFC 3597, Section 5 */ - r = asprintf(&s, "%s \\# %zu %s", k, rr->generic.size, t); + r = asprintf(&s, "%s \\# %zu %s", k, rr->generic.data_size, t); if (r < 0) return NULL; break; @@ -1331,8 +1425,16 @@ static void dns_resource_record_hash_func(const void *i, struct siphash *state) /* FIXME: We leave the bitmaps out */ break; + case DNS_TYPE_TLSA: + 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); + break; + + case DNS_TYPE_OPENPGPKEY: default: - siphash24_compress(rr->generic.data, rr->generic.size, state); + siphash24_compress(rr->generic.data, rr->generic.data_size, state); break; } } |