switch (q->state) {
- case DNS_QUERY_NO_SERVERS:
+ case DNS_TRANSACTION_NO_SERVERS:
return sd_bus_reply_method_errorf(q->request, BUS_ERROR_NO_NAME_SERVERS, "No appropriate name servers or networks for name found");
- case DNS_QUERY_TIMEOUT:
+ case DNS_TRANSACTION_TIMEOUT:
return sd_bus_reply_method_errorf(q->request, SD_BUS_ERROR_TIMEOUT, "Query timed out");
- case DNS_QUERY_ATTEMPTS_MAX:
+ case DNS_TRANSACTION_ATTEMPTS_MAX_REACHED:
return sd_bus_reply_method_errorf(q->request, SD_BUS_ERROR_TIMEOUT, "All attempts to contact name servers or networks failed");
- case DNS_QUERY_RESOURCES:
+ case DNS_TRANSACTION_RESOURCES:
return sd_bus_reply_method_errorf(q->request, BUS_ERROR_NO_RESOURCES, "Not enough resources");
- case DNS_QUERY_INVALID_REPLY:
+ case DNS_TRANSACTION_INVALID_REPLY:
return sd_bus_reply_method_errorf(q->request, BUS_ERROR_INVALID_REPLY, "Received invalid reply");
- case DNS_QUERY_FAILURE: {
+ case DNS_TRANSACTION_FAILURE: {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
if (q->answer_rcode == DNS_RCODE_NXDOMAIN)
return sd_bus_reply_method_error(q->request, &error);
}
- case DNS_QUERY_NULL:
- case DNS_QUERY_PENDING:
- case DNS_QUERY_SUCCESS:
+ case DNS_TRANSACTION_NULL:
+ case DNS_TRANSACTION_PENDING:
+ case DNS_TRANSACTION_SUCCESS:
default:
assert_not_reached("Impossible state");
}
assert(q);
- if (q->state != DNS_QUERY_SUCCESS) {
+ if (q->state != DNS_TRANSACTION_SUCCESS) {
r = reply_query_state(q);
goto finish;
}
if (r < 0)
goto finish;
- answer = dns_answer_ref(q->answer);
ifindex = q->answer_ifindex;
- for (i = 0; i < answer->n_rrs; i++) {
- r = dns_question_matches_rr(q->question, answer->rrs[i]);
- if (r < 0)
- goto parse_fail;
- if (r == 0) {
- /* Hmm, if this is not an address record,
- maybe it's a cname? If so, remember this */
- r = dns_question_matches_cname(q->question, answer->rrs[i]);
+ if (q->answer) {
+ answer = dns_answer_ref(q->answer);
+
+ for (i = 0; i < answer->n_rrs; i++) {
+ r = dns_question_matches_rr(q->question, answer->rrs[i]);
if (r < 0)
- goto parse_fail;
- if (r > 0)
- cname = dns_resource_record_ref(answer->rrs[i]);
+ goto finish;
+ if (r == 0) {
+ /* Hmm, if this is not an address record,
+ maybe it's a cname? If so, remember this */
+ r = dns_question_matches_cname(q->question, answer->rrs[i]);
+ if (r < 0)
+ goto finish;
+ if (r > 0)
+ cname = dns_resource_record_ref(answer->rrs[i]);
- continue;
- }
+ continue;
+ }
- r = append_address(reply, answer->rrs[i], ifindex);
- if (r < 0)
- goto finish;
+ r = append_address(reply, answer->rrs[i], ifindex);
+ if (r < 0)
+ goto finish;
- if (!canonical)
- canonical = dns_resource_record_ref(answer->rrs[i]);
+ if (!canonical)
+ canonical = dns_resource_record_ref(answer->rrs[i]);
- added ++;
+ added ++;
+ }
}
if (added <= 0) {
for (i = 0; i < answer->n_rrs; i++) {
r = dns_question_matches_rr(q->question, answer->rrs[i]);
if (r < 0)
- goto parse_fail;
+ goto finish;
if (r == 0)
continue;
r = sd_bus_reply_method_errno(q->request, -r, NULL);
goto finish;
}
+
return;
}
}
goto finish;
r = sd_bus_send(q->manager->bus, reply, NULL);
- goto finish;
-
-parse_fail:
- r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_INVALID_REPLY, "Received invalid reply");
finish:
- if (r < 0)
- log_error("Failed to send bus reply: %s", strerror(-r));
+ if (r < 0) {
+ log_error("Failed to send hostname reply: %s", strerror(-r));
+ sd_bus_reply_method_errno(q->request, -r, NULL);
+ }
dns_query_free(q);
}
assert(q);
- if (q->state != DNS_QUERY_SUCCESS) {
+ if (q->state != DNS_TRANSACTION_SUCCESS) {
r = reply_query_state(q);
goto finish;
}
if (r < 0)
goto finish;
- answer = dns_answer_ref(q->answer);
+ if (q->answer) {
+ answer = dns_answer_ref(q->answer);
- for (i = 0; i < answer->n_rrs; i++) {
- r = dns_question_matches_rr(q->question, answer->rrs[i]);
- if (r < 0)
- goto parse_fail;
- if (r == 0)
- continue;
+ for (i = 0; i < answer->n_rrs; i++) {
+ r = dns_question_matches_rr(q->question, answer->rrs[i]);
+ if (r < 0)
+ goto finish;
+ if (r == 0)
+ continue;
- r = sd_bus_message_append(reply, "s", answer->rrs[i]->ptr.name);
- if (r < 0)
- goto finish;
+ r = sd_bus_message_append(reply, "s", answer->rrs[i]->ptr.name);
+ if (r < 0)
+ goto finish;
- added ++;
+ added ++;
+ }
}
if (added <= 0) {
goto finish;
r = sd_bus_send(q->manager->bus, reply, NULL);
- goto finish;
-
-parse_fail:
- r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_INVALID_REPLY, "Received invalid reply");
finish:
- if (r < 0)
- log_error("Failed to send bus reply: %s", strerror(-r));
+ if (r < 0) {
+ log_error("Failed to send address reply: %s", strerror(-r));
+ sd_bus_reply_method_errno(q->request, -r, NULL);
+ }
dns_query_free(q);
}
return 1;
}
+static void bus_method_resolve_record_complete(DnsQuery *q) {
+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+ _cleanup_(dns_answer_unrefp) DnsAnswer *answer = NULL;
+ unsigned added = 0, i;
+ int r;
+
+ assert(q);
+
+ if (q->state != DNS_TRANSACTION_SUCCESS) {
+ r = reply_query_state(q);
+ goto finish;
+ }
+
+ r = sd_bus_message_new_method_return(q->request, &reply);
+ if (r < 0)
+ goto finish;
+
+ r = sd_bus_message_open_container(reply, 'a', "(qqay)");
+ if (r < 0)
+ goto finish;
+
+ if (q->answer) {
+ answer = dns_answer_ref(q->answer);
+
+ for (i = 0; i < answer->n_rrs; i++) {
+ _cleanup_(dns_packet_unrefp) DnsPacket *p = NULL;
+ size_t start;
+
+ r = dns_question_matches_rr(q->question, answer->rrs[i]);
+ if (r < 0)
+ goto finish;
+ if (r == 0)
+ continue;
+
+ r = dns_packet_new(&p, DNS_PROTOCOL_DNS, 0);
+ if (r < 0)
+ goto finish;
+
+ r = dns_packet_append_rr(p, answer->rrs[i], &start);
+ if (r < 0)
+ goto finish;
+
+ r = sd_bus_message_open_container(reply, 'r', "qqay");
+ if (r < 0)
+ goto finish;
+
+ r = sd_bus_message_append(reply, "qq", answer->rrs[i]->key->class, answer->rrs[i]->key->type);
+ if (r < 0)
+ goto finish;
+
+ r = sd_bus_message_append_array(reply, 'y', DNS_PACKET_DATA(p) + start, p->size - start);
+ if (r < 0)
+ goto finish;
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ goto finish;
+
+ added ++;
+ }
+ }
+
+ if (added <= 0) {
+ r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_NO_SUCH_RR, "Name '%s' does not have any RR of the requested type", q->request_hostname);
+ goto finish;
+ }
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ goto finish;
+
+ r = sd_bus_send(q->manager->bus, reply, NULL);
+
+finish:
+ if (r < 0) {
+ log_error("Failed to send record reply: %s", strerror(-r));
+ sd_bus_reply_method_errno(q->request, -r, NULL);
+ }
+
+ dns_query_free(q);
+}
+
+static int bus_method_resolve_record(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_(dns_resource_key_unrefp) DnsResourceKey *key = NULL;
+ _cleanup_(dns_question_unrefp) DnsQuestion *question = NULL;
+ _cleanup_free_ char *reverse = NULL;
+ Manager *m = userdata;
+ DnsQuery *q;
+ int r;
+ uint16_t class, type;
+ const char *name;
+
+ assert(bus);
+ assert(message);
+ assert(m);
+
+ r = sd_bus_message_read(message, "sqq", &name, &class, &type);
+ if (r < 0)
+ return r;
+
+ question = dns_question_new(1);
+ if (!question)
+ return -ENOMEM;
+
+ key = dns_resource_key_new(class, type, name);
+ if (!key)
+ return -ENOMEM;
+
+ r = dns_question_add(question, key);
+ if (r < 0)
+ return r;
+
+ r = dns_query_new(m, &q, question);
+ if (r < 0)
+ return r;
+
+ q->request = sd_bus_message_ref(message);
+ q->request_hostname = name;
+ q->complete = bus_method_resolve_record_complete;
+
+ r = dns_query_go(q);
+ if (r < 0) {
+ dns_query_free(q);
+
+ if (r == -ESRCH)
+ sd_bus_error_setf(error, BUS_ERROR_NO_NAME_SERVERS, "No appropriate name servers or networks for name found");
+
+ return r;
+ }
+
+ return 1;
+}
+
static const sd_bus_vtable resolve_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_METHOD("ResolveHostname", "si", "a(iayi)s", bus_method_resolve_hostname, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("ResolveAddress", "iayi", "as", bus_method_resolve_address, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("ResolveRecord", "sqq", "a(qqay)", bus_method_resolve_record, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_VTABLE_END,
};
~ianmdlvl / elogind.git / blobdiff