diff options
Diffstat (limited to 'src/resolve/resolved-bus.c')
| -rw-r--r-- | src/resolve/resolved-bus.c | 1689 |
1 files changed, 0 insertions, 1689 deletions
diff --git a/src/resolve/resolved-bus.c b/src/resolve/resolved-bus.c deleted file mode 100644 index 2ca65e6953..0000000000 --- a/src/resolve/resolved-bus.c +++ /dev/null @@ -1,1689 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2014 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include "alloc-util.h" -#include "bus-common-errors.h" -#include "bus-util.h" -#include "dns-domain.h" -#include "resolved-bus.h" -#include "resolved-def.h" -#include "resolved-dns-synthesize.h" -#include "resolved-link-bus.h" - -static int reply_query_state(DnsQuery *q) { - - switch (q->state) { - - 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_TRANSACTION_TIMEOUT: - return sd_bus_reply_method_errorf(q->request, SD_BUS_ERROR_TIMEOUT, "Query timed out"); - - 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_TRANSACTION_INVALID_REPLY: - return sd_bus_reply_method_errorf(q->request, BUS_ERROR_INVALID_REPLY, "Received invalid reply"); - - case DNS_TRANSACTION_ERRNO: - return sd_bus_reply_method_errnof(q->request, q->answer_errno, "Lookup failed due to system error: %m"); - - case DNS_TRANSACTION_ABORTED: - return sd_bus_reply_method_errorf(q->request, BUS_ERROR_ABORTED, "Query aborted"); - - case DNS_TRANSACTION_DNSSEC_FAILED: - return sd_bus_reply_method_errorf(q->request, BUS_ERROR_DNSSEC_FAILED, "DNSSEC validation failed: %s", - dnssec_result_to_string(q->answer_dnssec_result)); - - case DNS_TRANSACTION_NO_TRUST_ANCHOR: - return sd_bus_reply_method_errorf(q->request, BUS_ERROR_NO_TRUST_ANCHOR, "No suitable trust anchor known"); - - case DNS_TRANSACTION_RR_TYPE_UNSUPPORTED: - return sd_bus_reply_method_errorf(q->request, BUS_ERROR_RR_TYPE_UNSUPPORTED, "Server does not support requested resource record type"); - - case DNS_TRANSACTION_NETWORK_DOWN: - return sd_bus_reply_method_errorf(q->request, BUS_ERROR_NETWORK_DOWN, "Network is down"); - - case DNS_TRANSACTION_NOT_FOUND: - /* We return this as NXDOMAIN. This is only generated when a host doesn't implement LLMNR/TCP, and we - * thus quickly know that we cannot resolve an in-addr.arpa or ip6.arpa address. */ - return sd_bus_reply_method_errorf(q->request, _BUS_ERROR_DNS "NXDOMAIN", "'%s' not found", dns_query_string(q)); - - case DNS_TRANSACTION_RCODE_FAILURE: { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - - if (q->answer_rcode == DNS_RCODE_NXDOMAIN) - sd_bus_error_setf(&error, _BUS_ERROR_DNS "NXDOMAIN", "'%s' not found", dns_query_string(q)); - else { - const char *rc, *n; - char p[DECIMAL_STR_MAX(q->answer_rcode)]; - - rc = dns_rcode_to_string(q->answer_rcode); - if (!rc) { - sprintf(p, "%i", q->answer_rcode); - rc = p; - } - - n = strjoina(_BUS_ERROR_DNS, rc); - sd_bus_error_setf(&error, n, "Could not resolve '%s', server or network returned error %s", dns_query_string(q), rc); - } - - return sd_bus_reply_method_error(q->request, &error); - } - - case DNS_TRANSACTION_NULL: - case DNS_TRANSACTION_PENDING: - case DNS_TRANSACTION_VALIDATING: - case DNS_TRANSACTION_SUCCESS: - default: - assert_not_reached("Impossible state"); - } -} - -static int append_address(sd_bus_message *reply, DnsResourceRecord *rr, int ifindex) { - int r; - - assert(reply); - assert(rr); - - r = sd_bus_message_open_container(reply, 'r', "iiay"); - if (r < 0) - return r; - - r = sd_bus_message_append(reply, "i", ifindex); - if (r < 0) - return r; - - if (rr->key->type == DNS_TYPE_A) { - r = sd_bus_message_append(reply, "i", AF_INET); - if (r < 0) - return r; - - r = sd_bus_message_append_array(reply, 'y', &rr->a.in_addr, sizeof(struct in_addr)); - - } else if (rr->key->type == DNS_TYPE_AAAA) { - r = sd_bus_message_append(reply, "i", AF_INET6); - if (r < 0) - return r; - - r = sd_bus_message_append_array(reply, 'y', &rr->aaaa.in6_addr, sizeof(struct in6_addr)); - } else - return -EAFNOSUPPORT; - - if (r < 0) - return r; - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - return 0; -} - -static void bus_method_resolve_hostname_complete(DnsQuery *q) { - _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *canonical = NULL; - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_free_ char *normalized = NULL; - DnsResourceRecord *rr; - unsigned added = 0; - int ifindex, r; - - assert(q); - - if (q->state != DNS_TRANSACTION_SUCCESS) { - r = reply_query_state(q); - goto finish; - } - - r = dns_query_process_cname(q); - if (r == -ELOOP) { - r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_CNAME_LOOP, "CNAME loop detected, or CNAME resolving disabled on '%s'", dns_query_string(q)); - goto finish; - } - if (r < 0) - goto finish; - if (r == DNS_QUERY_RESTARTED) /* This was a cname, and the query was restarted. */ - return; - - r = sd_bus_message_new_method_return(q->request, &reply); - if (r < 0) - goto finish; - - r = sd_bus_message_open_container(reply, 'a', "(iiay)"); - if (r < 0) - goto finish; - - DNS_ANSWER_FOREACH_IFINDEX(rr, ifindex, q->answer) { - DnsQuestion *question; - - question = dns_query_question_for_protocol(q, q->answer_protocol); - - r = dns_question_matches_rr(question, rr, DNS_SEARCH_DOMAIN_NAME(q->answer_search_domain)); - if (r < 0) - goto finish; - if (r == 0) - continue; - - r = append_address(reply, rr, ifindex); - if (r < 0) - goto finish; - - if (!canonical) - canonical = dns_resource_record_ref(rr); - - added++; - } - - if (added <= 0) { - r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_NO_SUCH_RR, "'%s' does not have any RR of the requested type", dns_query_string(q)); - goto finish; - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - goto finish; - - /* The key names are not necessarily normalized, make sure that they are when we return them to our bus - * clients. */ - r = dns_name_normalize(dns_resource_key_name(canonical->key), &normalized); - if (r < 0) - goto finish; - - /* Return the precise spelling and uppercasing and CNAME target reported by the server */ - assert(canonical); - r = sd_bus_message_append( - reply, "st", - normalized, - SD_RESOLVED_FLAGS_MAKE(q->answer_protocol, q->answer_family, q->answer_authenticated)); - if (r < 0) - goto finish; - - r = sd_bus_send(q->manager->bus, reply, NULL); - -finish: - if (r < 0) { - log_error_errno(r, "Failed to send hostname reply: %m"); - sd_bus_reply_method_errno(q->request, r, NULL); - } - - dns_query_free(q); -} - -static int check_ifindex_flags(int ifindex, uint64_t *flags, uint64_t ok, sd_bus_error *error) { - assert(flags); - - if (ifindex < 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid interface index"); - - if (*flags & ~(SD_RESOLVED_PROTOCOLS_ALL|SD_RESOLVED_NO_CNAME|ok)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid flags parameter"); - - if ((*flags & SD_RESOLVED_PROTOCOLS_ALL) == 0) /* If no protocol is enabled, enable all */ - *flags |= SD_RESOLVED_PROTOCOLS_ALL; - - return 0; -} - -static int parse_as_address(sd_bus_message *m, int ifindex, const char *hostname, int family, uint64_t flags) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_free_ char *canonical = NULL; - union in_addr_union parsed; - int r, ff, parsed_ifindex = 0; - - /* Check if the hostname is actually already an IP address formatted as string. In that case just parse it, - * let's not attempt to look it up. */ - - r = in_addr_ifindex_from_string_auto(hostname, &ff, &parsed, &parsed_ifindex); - if (r < 0) /* not an address */ - return 0; - - if (family != AF_UNSPEC && ff != family) - return sd_bus_reply_method_errorf(m, BUS_ERROR_NO_SUCH_RR, "The specified address is not of the requested family."); - if (ifindex > 0 && parsed_ifindex > 0 && parsed_ifindex != ifindex) - return sd_bus_reply_method_errorf(m, BUS_ERROR_NO_SUCH_RR, "The specified address interface index does not match requested interface."); - - if (parsed_ifindex > 0) - ifindex = parsed_ifindex; - - r = sd_bus_message_new_method_return(m, &reply); - if (r < 0) - return r; - - r = sd_bus_message_open_container(reply, 'a', "(iiay)"); - if (r < 0) - return r; - - r = sd_bus_message_open_container(reply, 'r', "iiay"); - if (r < 0) - return r; - - r = sd_bus_message_append(reply, "ii", ifindex, ff); - if (r < 0) - return r; - - r = sd_bus_message_append_array(reply, 'y', &parsed, FAMILY_ADDRESS_SIZE(ff)); - if (r < 0) - return r; - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - /* When an IP address is specified we just return it as canonical name, in order to avoid a DNS - * look-up. However, we reformat it to make sure it's in a truly canonical form (i.e. on IPv6 the inner - * omissions are always done the same way). */ - r = in_addr_ifindex_to_string(ff, &parsed, ifindex, &canonical); - if (r < 0) - return r; - - r = sd_bus_message_append(reply, "st", canonical, - SD_RESOLVED_FLAGS_MAKE(dns_synthesize_protocol(flags), ff, true)); - if (r < 0) - return r; - - return sd_bus_send(sd_bus_message_get_bus(m), reply, NULL); -} - -static int bus_method_resolve_hostname(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(dns_question_unrefp) DnsQuestion *question_idna = NULL, *question_utf8 = NULL; - Manager *m = userdata; - const char *hostname; - int family, ifindex; - uint64_t flags; - DnsQuery *q; - int r; - - assert(message); - assert(m); - - assert_cc(sizeof(int) == sizeof(int32_t)); - - r = sd_bus_message_read(message, "isit", &ifindex, &hostname, &family, &flags); - if (r < 0) - return r; - - if (!IN_SET(family, AF_INET, AF_INET6, AF_UNSPEC)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown address family %i", family); - - r = check_ifindex_flags(ifindex, &flags, SD_RESOLVED_NO_SEARCH, error); - if (r < 0) - return r; - - r = parse_as_address(message, ifindex, hostname, family, flags); - if (r != 0) - return r; - - r = dns_name_is_valid(hostname); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid hostname '%s'", hostname); - - r = dns_question_new_address(&question_utf8, family, hostname, false); - if (r < 0) - return r; - - r = dns_question_new_address(&question_idna, family, hostname, true); - if (r < 0) - return r; - - r = dns_query_new(m, &q, question_utf8, question_idna, ifindex, flags); - if (r < 0) - return r; - - q->request = sd_bus_message_ref(message); - q->request_family = family; - q->complete = bus_method_resolve_hostname_complete; - q->suppress_unroutable_family = family == AF_UNSPEC; - - r = dns_query_bus_track(q, message); - if (r < 0) - goto fail; - - r = dns_query_go(q); - if (r < 0) - goto fail; - - return 1; - -fail: - dns_query_free(q); - return r; -} - -static void bus_method_resolve_address_complete(DnsQuery *q) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - DnsQuestion *question; - DnsResourceRecord *rr; - unsigned added = 0; - int ifindex, r; - - assert(q); - - if (q->state != DNS_TRANSACTION_SUCCESS) { - r = reply_query_state(q); - goto finish; - } - - r = dns_query_process_cname(q); - if (r == -ELOOP) { - r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_CNAME_LOOP, "CNAME loop detected, or CNAME resolving disabled on '%s'", dns_query_string(q)); - goto finish; - } - if (r < 0) - goto finish; - if (r == DNS_QUERY_RESTARTED) /* This was a cname, and the query was restarted. */ - return; - - r = sd_bus_message_new_method_return(q->request, &reply); - if (r < 0) - goto finish; - - r = sd_bus_message_open_container(reply, 'a', "(is)"); - if (r < 0) - goto finish; - - question = dns_query_question_for_protocol(q, q->answer_protocol); - - DNS_ANSWER_FOREACH_IFINDEX(rr, ifindex, q->answer) { - _cleanup_free_ char *normalized = NULL; - - r = dns_question_matches_rr(question, rr, NULL); - if (r < 0) - goto finish; - if (r == 0) - continue; - - r = dns_name_normalize(rr->ptr.name, &normalized); - if (r < 0) - goto finish; - - r = sd_bus_message_append(reply, "(is)", ifindex, normalized); - if (r < 0) - goto finish; - - added++; - } - - if (added <= 0) { - _cleanup_free_ char *ip = NULL; - - (void) in_addr_to_string(q->request_family, &q->request_address, &ip); - r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_NO_SUCH_RR, - "Address '%s' does not have any RR of requested type", strnull(ip)); - goto finish; - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - goto finish; - - r = sd_bus_message_append(reply, "t", SD_RESOLVED_FLAGS_MAKE(q->answer_protocol, q->answer_family, q->answer_authenticated)); - if (r < 0) - goto finish; - - r = sd_bus_send(q->manager->bus, reply, NULL); - -finish: - if (r < 0) { - log_error_errno(r, "Failed to send address reply: %m"); - sd_bus_reply_method_errno(q->request, r, NULL); - } - - dns_query_free(q); -} - -static int bus_method_resolve_address(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(dns_question_unrefp) DnsQuestion *question = NULL; - Manager *m = userdata; - int family, ifindex; - uint64_t flags; - const void *d; - DnsQuery *q; - size_t sz; - int r; - - assert(message); - assert(m); - - assert_cc(sizeof(int) == sizeof(int32_t)); - - r = sd_bus_message_read(message, "ii", &ifindex, &family); - if (r < 0) - return r; - - if (!IN_SET(family, AF_INET, AF_INET6)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown address family %i", family); - - r = sd_bus_message_read_array(message, 'y', &d, &sz); - if (r < 0) - return r; - - if (sz != FAMILY_ADDRESS_SIZE(family)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid address size"); - - r = sd_bus_message_read(message, "t", &flags); - if (r < 0) - return r; - - r = check_ifindex_flags(ifindex, &flags, 0, error); - if (r < 0) - return r; - - r = dns_question_new_reverse(&question, family, d); - if (r < 0) - return r; - - r = dns_query_new(m, &q, question, question, ifindex, flags|SD_RESOLVED_NO_SEARCH); - if (r < 0) - return r; - - q->request = sd_bus_message_ref(message); - q->request_family = family; - memcpy(&q->request_address, d, sz); - q->complete = bus_method_resolve_address_complete; - - r = dns_query_bus_track(q, message); - if (r < 0) - goto fail; - - r = dns_query_go(q); - if (r < 0) - goto fail; - - return 1; - -fail: - dns_query_free(q); - return r; -} - -static int bus_message_append_rr(sd_bus_message *m, DnsResourceRecord *rr, int ifindex) { - int r; - - assert(m); - assert(rr); - - r = sd_bus_message_open_container(m, 'r', "iqqay"); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "iqq", - ifindex, - rr->key->class, - rr->key->type); - if (r < 0) - return r; - - r = dns_resource_record_to_wire_format(rr, false); - if (r < 0) - return r; - - r = sd_bus_message_append_array(m, 'y', rr->wire_format, rr->wire_format_size); - if (r < 0) - return r; - - return sd_bus_message_close_container(m); -} - -static void bus_method_resolve_record_complete(DnsQuery *q) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - DnsResourceRecord *rr; - DnsQuestion *question; - unsigned added = 0; - int ifindex; - int r; - - assert(q); - - if (q->state != DNS_TRANSACTION_SUCCESS) { - r = reply_query_state(q); - goto finish; - } - - r = dns_query_process_cname(q); - if (r == -ELOOP) { - r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_CNAME_LOOP, "CNAME loop detected, or CNAME resolving disabled on '%s'", dns_query_string(q)); - goto finish; - } - if (r < 0) - goto finish; - if (r == DNS_QUERY_RESTARTED) /* This was a cname, and the query was restarted. */ - return; - - r = sd_bus_message_new_method_return(q->request, &reply); - if (r < 0) - goto finish; - - r = sd_bus_message_open_container(reply, 'a', "(iqqay)"); - if (r < 0) - goto finish; - - question = dns_query_question_for_protocol(q, q->answer_protocol); - - DNS_ANSWER_FOREACH_IFINDEX(rr, ifindex, q->answer) { - r = dns_question_matches_rr(question, rr, NULL); - if (r < 0) - goto finish; - if (r == 0) - continue; - - r = bus_message_append_rr(reply, rr, ifindex); - 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", dns_query_string(q)); - goto finish; - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - goto finish; - - r = sd_bus_message_append(reply, "t", SD_RESOLVED_FLAGS_MAKE(q->answer_protocol, q->answer_family, q->answer_authenticated)); - if (r < 0) - goto finish; - - r = sd_bus_send(q->manager->bus, reply, NULL); - -finish: - if (r < 0) { - log_error_errno(r, "Failed to send record reply: %m"); - sd_bus_reply_method_errno(q->request, r, NULL); - } - - dns_query_free(q); -} - -static int bus_method_resolve_record(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; - Manager *m = userdata; - uint16_t class, type; - const char *name; - int r, ifindex; - uint64_t flags; - DnsQuery *q; - - assert(message); - assert(m); - - assert_cc(sizeof(int) == sizeof(int32_t)); - - r = sd_bus_message_read(message, "isqqt", &ifindex, &name, &class, &type, &flags); - if (r < 0) - return r; - - r = dns_name_is_valid(name); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid name '%s'", name); - - if (!dns_type_is_valid_query(type)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Specified resource record type %" PRIu16 " may not be used in a query.", type); - if (dns_type_is_zone_transer(type)) - return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Zone transfers not permitted via this programming interface."); - if (dns_type_is_obsolete(type)) - return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Specified DNS resource record type %" PRIu16 " is obsolete.", type); - - r = check_ifindex_flags(ifindex, &flags, 0, error); - 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, question, ifindex, flags|SD_RESOLVED_NO_SEARCH); - if (r < 0) - return r; - - /* Let's request that the TTL is fixed up for locally cached entries, after all we return it in the wire format - * blob */ - q->clamp_ttl = true; - - q->request = sd_bus_message_ref(message); - q->complete = bus_method_resolve_record_complete; - - r = dns_query_bus_track(q, message); - if (r < 0) - goto fail; - - r = dns_query_go(q); - if (r < 0) - goto fail; - - return 1; - -fail: - dns_query_free(q); - return r; -} - -static int append_srv(DnsQuery *q, sd_bus_message *reply, DnsResourceRecord *rr) { - _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *canonical = NULL; - _cleanup_free_ char *normalized = NULL; - DnsQuery *aux; - int r; - - assert(q); - assert(reply); - assert(rr); - assert(rr->key); - - if (rr->key->type != DNS_TYPE_SRV) - return 0; - - if ((q->flags & SD_RESOLVED_NO_ADDRESS) == 0) { - /* First, let's see if we could find an appropriate A or AAAA - * record for the SRV record */ - LIST_FOREACH(auxiliary_queries, aux, q->auxiliary_queries) { - DnsResourceRecord *zz; - DnsQuestion *question; - - if (aux->state != DNS_TRANSACTION_SUCCESS) - continue; - if (aux->auxiliary_result != 0) - continue; - - question = dns_query_question_for_protocol(aux, aux->answer_protocol); - - r = dns_name_equal(dns_question_first_name(question), rr->srv.name); - if (r < 0) - return r; - if (r == 0) - continue; - - DNS_ANSWER_FOREACH(zz, aux->answer) { - - r = dns_question_matches_rr(question, zz, NULL); - if (r < 0) - return r; - if (r == 0) - continue; - - canonical = dns_resource_record_ref(zz); - break; - } - - if (canonical) - break; - } - - /* Is there are successful A/AAAA lookup for this SRV RR? If not, don't add it */ - if (!canonical) - return 0; - } - - r = sd_bus_message_open_container(reply, 'r', "qqqsa(iiay)s"); - if (r < 0) - return r; - - r = dns_name_normalize(rr->srv.name, &normalized); - if (r < 0) - return r; - - r = sd_bus_message_append( - reply, - "qqqs", - rr->srv.priority, rr->srv.weight, rr->srv.port, normalized); - if (r < 0) - return r; - - r = sd_bus_message_open_container(reply, 'a', "(iiay)"); - if (r < 0) - return r; - - if ((q->flags & SD_RESOLVED_NO_ADDRESS) == 0) { - LIST_FOREACH(auxiliary_queries, aux, q->auxiliary_queries) { - DnsResourceRecord *zz; - DnsQuestion *question; - int ifindex; - - if (aux->state != DNS_TRANSACTION_SUCCESS) - continue; - if (aux->auxiliary_result != 0) - continue; - - question = dns_query_question_for_protocol(aux, aux->answer_protocol); - - r = dns_name_equal(dns_question_first_name(question), rr->srv.name); - if (r < 0) - return r; - if (r == 0) - continue; - - DNS_ANSWER_FOREACH_IFINDEX(zz, ifindex, aux->answer) { - - r = dns_question_matches_rr(question, zz, NULL); - if (r < 0) - return r; - if (r == 0) - continue; - - r = append_address(reply, zz, ifindex); - if (r < 0) - return r; - } - } - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - if (canonical) { - normalized = mfree(normalized); - - r = dns_name_normalize(dns_resource_key_name(canonical->key), &normalized); - if (r < 0) - return r; - } - - /* Note that above we appended the hostname as encoded in the - * SRV, and here the canonical hostname this maps to. */ - r = sd_bus_message_append(reply, "s", normalized); - if (r < 0) - return r; - - r = sd_bus_message_close_container(reply); - if (r < 0) - return r; - - return 1; -} - -static int append_txt(sd_bus_message *reply, DnsResourceRecord *rr) { - DnsTxtItem *i; - int r; - - assert(reply); - assert(rr); - assert(rr->key); - - if (rr->key->type != DNS_TYPE_TXT) - return 0; - - LIST_FOREACH(items, i, rr->txt.items) { - - if (i->length <= 0) - continue; - - r = sd_bus_message_append_array(reply, 'y', i->data, i->length); - if (r < 0) - return r; - } - - return 1; -} - -static void resolve_service_all_complete(DnsQuery *q) { - _cleanup_(dns_resource_record_unrefp) DnsResourceRecord *canonical = NULL; - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_free_ char *name = NULL, *type = NULL, *domain = NULL; - DnsQuestion *question; - DnsResourceRecord *rr; - unsigned added = 0; - DnsQuery *aux; - int r; - - assert(q); - - if (q->block_all_complete > 0) - return; - - if ((q->flags & SD_RESOLVED_NO_ADDRESS) == 0) { - DnsQuery *bad = NULL; - bool have_success = false; - - LIST_FOREACH(auxiliary_queries, aux, q->auxiliary_queries) { - - switch (aux->state) { - - case DNS_TRANSACTION_PENDING: - /* If an auxiliary query is still pending, let's wait */ - return; - - case DNS_TRANSACTION_SUCCESS: - if (aux->auxiliary_result == 0) - have_success = true; - else - bad = aux; - break; - - default: - bad = aux; - break; - } - } - - if (!have_success) { - /* We can only return one error, hence pick the last error we encountered */ - - assert(bad); - - if (bad->state == DNS_TRANSACTION_SUCCESS) { - assert(bad->auxiliary_result != 0); - - if (bad->auxiliary_result == -ELOOP) { - r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_CNAME_LOOP, "CNAME loop detected, or CNAME resolving disabled on '%s'", dns_query_string(bad)); - goto finish; - } - - r = bad->auxiliary_result; - goto finish; - } - - r = reply_query_state(bad); - 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', "(qqqsa(iiay)s)"); - if (r < 0) - goto finish; - - question = dns_query_question_for_protocol(q, q->answer_protocol); - DNS_ANSWER_FOREACH(rr, q->answer) { - r = dns_question_matches_rr(question, rr, NULL); - if (r < 0) - goto finish; - if (r == 0) - continue; - - r = append_srv(q, reply, rr); - if (r < 0) - goto finish; - if (r == 0) /* not an SRV record */ - continue; - - if (!canonical) - canonical = dns_resource_record_ref(rr); - - added++; - } - - if (added <= 0) { - r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_NO_SUCH_RR, "'%s' does not have any RR of the requested type", dns_query_string(q)); - goto finish; - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - goto finish; - - r = sd_bus_message_open_container(reply, 'a', "ay"); - if (r < 0) - goto finish; - - DNS_ANSWER_FOREACH(rr, q->answer) { - r = dns_question_matches_rr(question, rr, NULL); - if (r < 0) - goto finish; - if (r == 0) - continue; - - r = append_txt(reply, rr); - if (r < 0) - goto finish; - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - goto finish; - - assert(canonical); - r = dns_service_split(dns_resource_key_name(canonical->key), &name, &type, &domain); - if (r < 0) - goto finish; - - r = sd_bus_message_append( - reply, - "ssst", - name, type, domain, - SD_RESOLVED_FLAGS_MAKE(q->answer_protocol, q->answer_family, q->answer_authenticated)); - if (r < 0) - goto finish; - - r = sd_bus_send(q->manager->bus, reply, NULL); - -finish: - if (r < 0) { - log_error_errno(r, "Failed to send service reply: %m"); - sd_bus_reply_method_errno(q->request, r, NULL); - } - - dns_query_free(q); -} - -static void resolve_service_hostname_complete(DnsQuery *q) { - int r; - - assert(q); - assert(q->auxiliary_for); - - if (q->state != DNS_TRANSACTION_SUCCESS) { - resolve_service_all_complete(q->auxiliary_for); - return; - } - - r = dns_query_process_cname(q); - if (r == DNS_QUERY_RESTARTED) /* This was a cname, and the query was restarted. */ - return; - - /* This auxiliary lookup is finished or failed, let's see if all are finished now. */ - q->auxiliary_result = r; - resolve_service_all_complete(q->auxiliary_for); -} - -static int resolve_service_hostname(DnsQuery *q, DnsResourceRecord *rr, int ifindex) { - _cleanup_(dns_question_unrefp) DnsQuestion *question = NULL; - DnsQuery *aux; - int r; - - assert(q); - assert(rr); - assert(rr->key); - assert(rr->key->type == DNS_TYPE_SRV); - - /* OK, we found an SRV record for the service. Let's resolve - * the hostname included in it */ - - r = dns_question_new_address(&question, q->request_family, rr->srv.name, false); - if (r < 0) - return r; - - r = dns_query_new(q->manager, &aux, question, question, ifindex, q->flags|SD_RESOLVED_NO_SEARCH); - if (r < 0) - return r; - - aux->request_family = q->request_family; - aux->complete = resolve_service_hostname_complete; - - r = dns_query_make_auxiliary(aux, q); - if (r == -EAGAIN) { - /* Too many auxiliary lookups? If so, don't complain, - * let's just not add this one, we already have more - * than enough */ - - dns_query_free(aux); - return 0; - } - if (r < 0) - goto fail; - - /* Note that auxiliary queries do not track the original bus - * client, only the primary request does that. */ - - r = dns_query_go(aux); - if (r < 0) - goto fail; - - return 1; - -fail: - dns_query_free(aux); - return r; -} - -static void bus_method_resolve_service_complete(DnsQuery *q) { - bool has_root_domain = false; - DnsResourceRecord *rr; - DnsQuestion *question; - unsigned found = 0; - int ifindex, r; - - assert(q); - - if (q->state != DNS_TRANSACTION_SUCCESS) { - r = reply_query_state(q); - goto finish; - } - - r = dns_query_process_cname(q); - if (r == -ELOOP) { - r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_CNAME_LOOP, "CNAME loop detected, or CNAME resolving disabled on '%s'", dns_query_string(q)); - goto finish; - } - if (r < 0) - goto finish; - if (r == DNS_QUERY_RESTARTED) /* This was a cname, and the query was restarted. */ - return; - - question = dns_query_question_for_protocol(q, q->answer_protocol); - - DNS_ANSWER_FOREACH_IFINDEX(rr, ifindex, q->answer) { - r = dns_question_matches_rr(question, rr, NULL); - if (r < 0) - goto finish; - if (r == 0) - continue; - - if (rr->key->type != DNS_TYPE_SRV) - continue; - - if (dns_name_is_root(rr->srv.name)) { - has_root_domain = true; - continue; - } - - if ((q->flags & SD_RESOLVED_NO_ADDRESS) == 0) { - q->block_all_complete++; - r = resolve_service_hostname(q, rr, ifindex); - q->block_all_complete--; - - if (r < 0) - goto finish; - } - - found++; - } - - if (has_root_domain && found <= 0) { - /* If there's exactly one SRV RR and it uses - * the root domain as host name, then the - * service is explicitly not offered on the - * domain. Report this as a recognizable - * error. See RFC 2782, Section "Usage - * Rules". */ - r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_NO_SUCH_SERVICE, "'%s' does not provide the requested service", dns_query_string(q)); - goto finish; - } - - if (found <= 0) { - r = sd_bus_reply_method_errorf(q->request, BUS_ERROR_NO_SUCH_RR, "'%s' does not have any RR of the requested type", dns_query_string(q)); - goto finish; - } - - /* Maybe we are already finished? check now... */ - resolve_service_all_complete(q); - return; - -finish: - if (r < 0) { - log_error_errno(r, "Failed to send service reply: %m"); - sd_bus_reply_method_errno(q->request, r, NULL); - } - - dns_query_free(q); -} - -static int bus_method_resolve_service(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(dns_question_unrefp) DnsQuestion *question_idna = NULL, *question_utf8 = NULL; - const char *name, *type, *domain; - Manager *m = userdata; - int family, ifindex; - uint64_t flags; - DnsQuery *q; - int r; - - assert(message); - assert(m); - - assert_cc(sizeof(int) == sizeof(int32_t)); - - r = sd_bus_message_read(message, "isssit", &ifindex, &name, &type, &domain, &family, &flags); - if (r < 0) - return r; - - if (!IN_SET(family, AF_INET, AF_INET6, AF_UNSPEC)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown address family %i", family); - - if (isempty(name)) - name = NULL; - else if (!dns_service_name_is_valid(name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid service name '%s'", name); - - if (isempty(type)) - type = NULL; - else if (!dns_srv_type_is_valid(type)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid SRV service type '%s'", type); - - r = dns_name_is_valid(domain); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid domain '%s'", domain); - - if (name && !type) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Service name cannot be specified without service type."); - - r = check_ifindex_flags(ifindex, &flags, SD_RESOLVED_NO_TXT|SD_RESOLVED_NO_ADDRESS, error); - if (r < 0) - return r; - - r = dns_question_new_service(&question_utf8, name, type, domain, !(flags & SD_RESOLVED_NO_TXT), false); - if (r < 0) - return r; - - r = dns_question_new_service(&question_idna, name, type, domain, !(flags & SD_RESOLVED_NO_TXT), true); - if (r < 0) - return r; - - r = dns_query_new(m, &q, question_utf8, question_idna, ifindex, flags|SD_RESOLVED_NO_SEARCH); - if (r < 0) - return r; - - q->request = sd_bus_message_ref(message); - q->request_family = family; - q->complete = bus_method_resolve_service_complete; - - r = dns_query_bus_track(q, message); - if (r < 0) - goto fail; - - r = dns_query_go(q); - if (r < 0) - goto fail; - - return 1; - -fail: - dns_query_free(q); - return r; -} - -int bus_dns_server_append(sd_bus_message *reply, DnsServer *s, bool with_ifindex) { - int r; - - assert(reply); - assert(s); - - r = sd_bus_message_open_container(reply, 'r', with_ifindex ? "iiay" : "iay"); - if (r < 0) - return r; - - if (with_ifindex) { - r = sd_bus_message_append(reply, "i", dns_server_ifindex(s)); - if (r < 0) - return r; - } - - r = sd_bus_message_append(reply, "i", s->family); - if (r < 0) - return r; - - r = sd_bus_message_append_array(reply, 'y', &s->address, FAMILY_ADDRESS_SIZE(s->family)); - if (r < 0) - return r; - - return sd_bus_message_close_container(reply); -} - -static int bus_property_get_dns_servers( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - unsigned c = 0; - DnsServer *s; - Iterator i; - Link *l; - int r; - - assert(reply); - assert(m); - - r = sd_bus_message_open_container(reply, 'a', "(iiay)"); - if (r < 0) - return r; - - LIST_FOREACH(servers, s, m->dns_servers) { - r = bus_dns_server_append(reply, s, true); - if (r < 0) - return r; - - c++; - } - - HASHMAP_FOREACH(l, m->links, i) { - LIST_FOREACH(servers, s, l->dns_servers) { - r = bus_dns_server_append(reply, s, true); - if (r < 0) - return r; - c++; - } - } - - if (c == 0) { - LIST_FOREACH(servers, s, m->fallback_dns_servers) { - r = bus_dns_server_append(reply, s, true); - if (r < 0) - return r; - } - } - - return sd_bus_message_close_container(reply); -} - -static int bus_property_get_domains( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - DnsSearchDomain *d; - Iterator i; - Link *l; - int r; - - assert(reply); - assert(m); - - r = sd_bus_message_open_container(reply, 'a', "(isb)"); - if (r < 0) - return r; - - LIST_FOREACH(domains, d, m->search_domains) { - r = sd_bus_message_append(reply, "(isb)", 0, d->name, d->route_only); - if (r < 0) - return r; - } - - HASHMAP_FOREACH(l, m->links, i) { - LIST_FOREACH(domains, d, l->search_domains) { - r = sd_bus_message_append(reply, "(isb)", l->ifindex, d->name, d->route_only); - if (r < 0) - return r; - } - } - - return sd_bus_message_close_container(reply); -} - -static int bus_property_get_transaction_statistics( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - - assert(reply); - assert(m); - - return sd_bus_message_append(reply, "(tt)", - (uint64_t) hashmap_size(m->dns_transactions), - (uint64_t) m->n_transactions_total); -} - -static int bus_property_get_cache_statistics( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - uint64_t size = 0, hit = 0, miss = 0; - Manager *m = userdata; - DnsScope *s; - - assert(reply); - assert(m); - - LIST_FOREACH(scopes, s, m->dns_scopes) { - size += dns_cache_size(&s->cache); - hit += s->cache.n_hit; - miss += s->cache.n_miss; - } - - return sd_bus_message_append(reply, "(ttt)", size, hit, miss); -} - -static int bus_property_get_dnssec_statistics( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - - assert(reply); - assert(m); - - return sd_bus_message_append(reply, "(tttt)", - (uint64_t) m->n_dnssec_verdict[DNSSEC_SECURE], - (uint64_t) m->n_dnssec_verdict[DNSSEC_INSECURE], - (uint64_t) m->n_dnssec_verdict[DNSSEC_BOGUS], - (uint64_t) m->n_dnssec_verdict[DNSSEC_INDETERMINATE]); -} - -static int bus_property_get_dnssec_supported( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - - assert(reply); - assert(m); - - return sd_bus_message_append(reply, "b", manager_dnssec_supported(m)); -} - -static int bus_property_get_ntas( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - Manager *m = userdata; - const char *domain; - Iterator i; - int r; - - assert(reply); - assert(m); - - r = sd_bus_message_open_container(reply, 'a', "s"); - if (r < 0) - return r; - - SET_FOREACH(domain, m->trust_anchor.negative_by_name, i) { - r = sd_bus_message_append(reply, "s", domain); - if (r < 0) - return r; - } - - return sd_bus_message_close_container(reply); -} - -static int bus_method_reset_statistics(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - DnsScope *s; - - assert(message); - assert(m); - - LIST_FOREACH(scopes, s, m->dns_scopes) - s->cache.n_hit = s->cache.n_miss = 0; - - m->n_transactions_total = 0; - zero(m->n_dnssec_verdict); - - return sd_bus_reply_method_return(message, NULL); -} - -static int get_any_link(Manager *m, int ifindex, Link **ret, sd_bus_error *error) { - Link *l; - - assert(m); - assert(ret); - - if (ifindex <= 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid interface index"); - - l = hashmap_get(m->links, INT_TO_PTR(ifindex)); - if (!l) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_LINK, "Link %i not known", ifindex); - - *ret = l; - return 0; -} - -static int call_link_method(Manager *m, sd_bus_message *message, sd_bus_message_handler_t handler, sd_bus_error *error) { - int ifindex, r; - Link *l; - - assert(m); - assert(message); - assert(handler); - - assert_cc(sizeof(int) == sizeof(int32_t)); - r = sd_bus_message_read(message, "i", &ifindex); - if (r < 0) - return r; - - r = get_any_link(m, ifindex, &l, error); - if (r < 0) - return r; - - return handler(message, l, error); -} - -static int bus_method_set_link_dns_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return call_link_method(userdata, message, bus_link_method_set_dns_servers, error); -} - -static int bus_method_set_link_domains(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return call_link_method(userdata, message, bus_link_method_set_domains, error); -} - -static int bus_method_set_link_llmnr(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return call_link_method(userdata, message, bus_link_method_set_llmnr, error); -} - -static int bus_method_set_link_mdns(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return call_link_method(userdata, message, bus_link_method_set_mdns, error); -} - -static int bus_method_set_link_dnssec(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return call_link_method(userdata, message, bus_link_method_set_dnssec, error); -} - -static int bus_method_set_link_dnssec_negative_trust_anchors(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return call_link_method(userdata, message, bus_link_method_set_dnssec_negative_trust_anchors, error); -} - -static int bus_method_revert_link(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return call_link_method(userdata, message, bus_link_method_revert, error); -} - -static int bus_method_get_link(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Manager *m = userdata; - int r, ifindex; - Link *l; - - assert(message); - assert(m); - - assert_cc(sizeof(int) == sizeof(int32_t)); - r = sd_bus_message_read(message, "i", &ifindex); - if (r < 0) - return r; - - r = get_any_link(m, ifindex, &l, error); - if (r < 0) - return r; - - p = link_bus_path(l); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int bus_method_flush_caches(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - - assert(message); - assert(m); - - manager_flush_caches(m); - - return sd_bus_reply_method_return(message, NULL); -} - -static const sd_bus_vtable resolve_vtable[] = { - SD_BUS_VTABLE_START(0), - SD_BUS_PROPERTY("LLMNRHostname", "s", NULL, offsetof(Manager, llmnr_hostname), 0), - SD_BUS_PROPERTY("DNS", "a(iiay)", bus_property_get_dns_servers, 0, 0), - SD_BUS_PROPERTY("Domains", "a(isb)", bus_property_get_domains, 0, 0), - SD_BUS_PROPERTY("TransactionStatistics", "(tt)", bus_property_get_transaction_statistics, 0, 0), - SD_BUS_PROPERTY("CacheStatistics", "(ttt)", bus_property_get_cache_statistics, 0, 0), - SD_BUS_PROPERTY("DNSSECStatistics", "(tttt)", bus_property_get_dnssec_statistics, 0, 0), - SD_BUS_PROPERTY("DNSSECSupported", "b", bus_property_get_dnssec_supported, 0, 0), - SD_BUS_PROPERTY("DNSSECNegativeTrustAnchors", "as", bus_property_get_ntas, 0, 0), - - SD_BUS_METHOD("ResolveHostname", "isit", "a(iiay)st", bus_method_resolve_hostname, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ResolveAddress", "iiayt", "a(is)t", bus_method_resolve_address, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ResolveRecord", "isqqt", "a(iqqay)t", bus_method_resolve_record, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ResolveService", "isssit", "a(qqqsa(iiay)s)aayssst", bus_method_resolve_service, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ResetStatistics", NULL, NULL, bus_method_reset_statistics, 0), - SD_BUS_METHOD("FlushCaches", NULL, NULL, bus_method_flush_caches, 0), - SD_BUS_METHOD("GetLink", "i", "o", bus_method_get_link, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("SetLinkDNS", "ia(iay)", NULL, bus_method_set_link_dns_servers, 0), - SD_BUS_METHOD("SetLinkDomains", "ia(sb)", NULL, bus_method_set_link_domains, 0), - SD_BUS_METHOD("SetLinkLLMNR", "is", NULL, bus_method_set_link_llmnr, 0), - SD_BUS_METHOD("SetLinkMulticastDNS", "is", NULL, bus_method_set_link_mdns, 0), - SD_BUS_METHOD("SetLinkDNSSEC", "is", NULL, bus_method_set_link_dnssec, 0), - SD_BUS_METHOD("SetLinkDNSSECNegativeTrustAnchors", "ias", NULL, bus_method_set_link_dnssec_negative_trust_anchors, 0), - SD_BUS_METHOD("RevertLink", "i", NULL, bus_method_revert_link, 0), - - SD_BUS_VTABLE_END, -}; - -static int on_bus_retry(sd_event_source *s, usec_t usec, void *userdata) { - Manager *m = userdata; - - assert(s); - assert(m); - - m->bus_retry_event_source = sd_event_source_unref(m->bus_retry_event_source); - - manager_connect_bus(m); - return 0; -} - -static int match_prepare_for_sleep(sd_bus_message *message, void *userdata, sd_bus_error *ret_error) { - Manager *m = userdata; - int b, r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "b", &b); - if (r < 0) { - log_debug_errno(r, "Failed to parse PrepareForSleep signal: %m"); - return 0; - } - - if (b) - return 0; - - log_debug("Coming back from suspend, verifying all RRs..."); - - manager_verify_all(m); - return 0; -} - -int manager_connect_bus(Manager *m) { - int r; - - assert(m); - - if (m->bus) - return 0; - - r = sd_bus_default_system(&m->bus); - if (r < 0) { - /* We failed to connect? Yuck, we must be in early - * boot. Let's try in 5s again. As soon as we have - * kdbus we can stop doing this... */ - - log_debug_errno(r, "Failed to connect to bus, trying again in 5s: %m"); - - r = sd_event_add_time(m->event, &m->bus_retry_event_source, CLOCK_MONOTONIC, now(CLOCK_MONOTONIC) + 5*USEC_PER_SEC, 0, on_bus_retry, m); - if (r < 0) - return log_error_errno(r, "Failed to install bus reconnect time event: %m"); - - (void) sd_event_source_set_description(m->bus_retry_event_source, "bus-retry"); - return 0; - } - - r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/resolve1", "org.freedesktop.resolve1.Manager", resolve_vtable, m); - if (r < 0) - return log_error_errno(r, "Failed to register object: %m"); - - r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/resolve1/link", "org.freedesktop.resolve1.Link", link_vtable, link_object_find, m); - if (r < 0) - return log_error_errno(r, "Failed to register link objects: %m"); - - r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/resolve1/link", link_node_enumerator, m); - if (r < 0) - return log_error_errno(r, "Failed to register link enumerator: %m"); - - r = sd_bus_request_name(m->bus, "org.freedesktop.resolve1", 0); - if (r < 0) - return log_error_errno(r, "Failed to register name: %m"); - - r = sd_bus_attach_event(m->bus, m->event, 0); - if (r < 0) - return log_error_errno(r, "Failed to attach bus to event loop: %m"); - - r = sd_bus_add_match(m->bus, &m->prepare_for_sleep_slot, - "type='signal'," - "sender='org.freedesktop.login1'," - "interface='org.freedesktop.login1.Manager'," - "member='PrepareForSleep'," - "path='/org/freedesktop/login1'", - match_prepare_for_sleep, - m); - if (r < 0) - log_error_errno(r, "Failed to add match for PrepareForSleep: %m"); - - return 0; -} |