int avahi_server_add_dns_server_address(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
const char *domain,
AvahiDNSServerType type,
const AvahiAddress *address,
uint16_t port /** should be 53 */) {
AvahiRecord *r;
char n[64], h[64];
AvahiEntry *a_entry, *s_entry;
assert(s);
assert(address);
AVAHI_CHECK_VALIDITY(s, AVAHI_IF_VALID(interface), AVAHI_ERR_INVALID_INTERFACE);
AVAHI_CHECK_VALIDITY(s, AVAHI_PROTO_VALID(protocol) && AVAHI_PROTO_VALID(address->proto), AVAHI_ERR_INVALID_PROTOCOL);
AVAHI_CHECK_VALIDITY(s, AVAHI_FLAGS_VALID(flags, AVAHI_PUBLISH_USE_MULTICAST|AVAHI_PUBLISH_USE_WIDE_AREA), AVAHI_ERR_INVALID_FLAGS);
AVAHI_CHECK_VALIDITY(s, type == AVAHI_DNS_SERVER_UPDATE || type == AVAHI_DNS_SERVER_RESOLVE, AVAHI_ERR_INVALID_FLAGS);
AVAHI_CHECK_VALIDITY(s, port != 0, AVAHI_ERR_INVALID_PORT);
AVAHI_CHECK_VALIDITY(s, !domain || avahi_is_valid_domain_name(domain), AVAHI_ERR_INVALID_DOMAIN_NAME);
if (!domain)
domain = s->domain_name;
transport_flags_from_domain(s, &flags, domain);
AVAHI_CHECK_VALIDITY(s, flags & AVAHI_PUBLISH_USE_MULTICAST, AVAHI_ERR_NOT_SUPPORTED);
if (address->proto == AVAHI_PROTO_INET) {
hexstring(h, sizeof(h), &address->data, sizeof(AvahiIPv4Address));
snprintf(n, sizeof(n), "ip-%s.%s", h, domain);
r = avahi_record_new_full(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_A, AVAHI_DEFAULT_TTL_HOST_NAME);
r->data.a.address = address->data.ipv4;
} else {
hexstring(h, sizeof(h), &address->data, sizeof(AvahiIPv6Address));
snprintf(n, sizeof(n), "ip6-%s.%s", h, domain);
r = avahi_record_new_full(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_AAAA, AVAHI_DEFAULT_TTL_HOST_NAME);
r->data.aaaa.address = address->data.ipv6;
}
if (!r)
return avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
a_entry = server_add_internal(s, g, interface, protocol, AVAHI_PUBLISH_UNIQUE | AVAHI_PUBLISH_ALLOW_MULTIPLE, r);
avahi_record_unref(r);
if (!a_entry)
return avahi_server_errno(s);
if (!(s_entry = server_add_dns_server_name(s, g, interface, protocol, flags, domain, type, n, port))) {
if (!(flags & AVAHI_PUBLISH_UPDATE))
avahi_entry_free(s, a_entry);
return avahi_server_errno(s);
}
return AVAHI_OK;
}
static AvahiEntry *server_add_txt_strlst_nocopy(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
uint32_t ttl,
const char *name,
AvahiStringList *strlst) {
AvahiRecord *r;
AvahiEntry *e;
assert(s);
if (!(r = avahi_record_new_full(name ? name : s->host_name_fqdn, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_TXT, ttl))) {
avahi_string_list_free(strlst);
avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
return NULL;
}
r->data.txt.string_list = strlst;
e = server_add_internal(s, g, interface, protocol, flags, r);
avahi_record_unref(r);
return e;
}
static AvahiEntry *server_add_ptr_internal(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
uint32_t ttl,
const char *name,
const char *dest) {
AvahiRecord *r;
AvahiEntry *e;
assert(s);
assert(dest);
AVAHI_CHECK_VALIDITY_RETURN_NULL(s, !name || avahi_is_valid_domain_name(name), AVAHI_ERR_INVALID_HOST_NAME);
AVAHI_CHECK_VALIDITY_RETURN_NULL(s, avahi_is_valid_domain_name(dest), AVAHI_ERR_INVALID_HOST_NAME);
if (!name)
name = s->host_name_fqdn;
if (!(r = avahi_record_new_full(name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR, ttl))) {
avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
return NULL;
}
r->data.ptr.name = avahi_normalize_name_strdup(dest);
e = server_add_internal(s, g, interface, protocol, flags, r);
avahi_record_unref(r);
return e;
}
static AvahiEntry *server_add_dns_server_name(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
const char *domain,
AvahiDNSServerType type,
const char *name,
uint16_t port /** should be 53 */) {
AvahiEntry *e;
char t[AVAHI_DOMAIN_NAME_MAX], normalized_d[AVAHI_DOMAIN_NAME_MAX], *n;
AvahiRecord *r;
assert(s);
assert(name);
AVAHI_CHECK_VALIDITY_RETURN_NULL(s, AVAHI_FLAGS_VALID(flags, AVAHI_PUBLISH_USE_WIDE_AREA|AVAHI_PUBLISH_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);
AVAHI_CHECK_VALIDITY_RETURN_NULL(s, type == AVAHI_DNS_SERVER_UPDATE || type == AVAHI_DNS_SERVER_RESOLVE, AVAHI_ERR_INVALID_FLAGS);
AVAHI_CHECK_VALIDITY_RETURN_NULL(s, port != 0, AVAHI_ERR_INVALID_PORT);
AVAHI_CHECK_VALIDITY_RETURN_NULL(s, avahi_is_valid_fqdn(name), AVAHI_ERR_INVALID_HOST_NAME);
AVAHI_CHECK_VALIDITY_RETURN_NULL(s, !domain || avahi_is_valid_domain_name(domain), AVAHI_ERR_INVALID_DOMAIN_NAME);
if (!domain)
domain = s->domain_name;
transport_flags_from_domain(s, &flags, domain);
AVAHI_CHECK_VALIDITY_RETURN_NULL(s, flags & AVAHI_PUBLISH_USE_MULTICAST, AVAHI_ERR_NOT_SUPPORTED);
if (!(n = avahi_normalize_name_strdup(name))) {
avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
return NULL;
}
AVAHI_ASSERT_TRUE(avahi_normalize_name(domain, normalized_d, sizeof(normalized_d)));
snprintf(t, sizeof(t), "%s.%s", type == AVAHI_DNS_SERVER_RESOLVE ? "_domain._udp" : "_dns-update._udp", normalized_d);
if (!(r = avahi_record_new_full(t, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_SRV, AVAHI_DEFAULT_TTL_HOST_NAME))) {
avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
avahi_free(n);
return NULL;
}
r->data.srv.priority = 0;
r->data.srv.weight = 0;
r->data.srv.port = port;
r->data.srv.name = n;
e = server_add_internal(s, g, interface, protocol, 0, r);
avahi_record_unref(r);
return e;
}
DBusHandlerResult avahi_dbus_msg_entry_group_impl(DBusConnection *c, DBusMessage *m, void *userdata) {
DBusError error;
EntryGroupInfo *i = userdata;
assert(c);
assert(m);
assert(i);
dbus_error_init(&error);
avahi_log_debug(__FILE__": interface=%s, path=%s, member=%s",
dbus_message_get_interface(m),
dbus_message_get_path(m),
dbus_message_get_member(m));
/* Introspection */
if (dbus_message_is_method_call(m, DBUS_INTERFACE_INTROSPECTABLE, "Introspect"))
return avahi_dbus_handle_introspect(c, m, "org.freedesktop.Avahi.EntryGroup.xml");
/* Access control */
if (strcmp(dbus_message_get_sender(m), i->client->name))
return avahi_dbus_respond_error(c, m, AVAHI_ERR_ACCESS_DENIED, NULL);
if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "Free")) {
if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
avahi_log_warn("Error parsing EntryGroup::Free message");
goto fail;
}
avahi_dbus_entry_group_free(i);
return avahi_dbus_respond_ok(c, m);
} else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "Commit")) {
if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
avahi_log_warn("Error parsing EntryGroup::Commit message");
goto fail;
}
if (avahi_s_entry_group_commit(i->entry_group) < 0)
return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
return avahi_dbus_respond_ok(c, m);
} else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "Reset")) {
if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
avahi_log_warn("Error parsing EntryGroup::Reset message");
goto fail;
}
avahi_s_entry_group_reset(i->entry_group);
i->n_entries = 0;
return avahi_dbus_respond_ok(c, m);
} else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "IsEmpty")) {
if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
avahi_log_warn("Error parsing EntryGroup::IsEmpty message");
goto fail;
}
return avahi_dbus_respond_boolean(c, m, !!avahi_s_entry_group_is_empty(i->entry_group));
} else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "GetState")) {
AvahiEntryGroupState state;
if (!dbus_message_get_args(m, &error, DBUS_TYPE_INVALID)) {
avahi_log_warn("Error parsing EntryGroup::GetState message");
goto fail;
}
state = avahi_s_entry_group_get_state(i->entry_group);
return avahi_dbus_respond_int32(c, m, (int32_t) state);
} else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "AddService")) {
int32_t interface, protocol;
uint32_t flags;
char *type, *name, *domain, *host;
uint16_t port;
AvahiStringList *strlst = NULL;
if (!dbus_message_get_args(
m, &error,
DBUS_TYPE_INT32, &interface,
DBUS_TYPE_INT32, &protocol,
DBUS_TYPE_UINT32, &flags,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_STRING, &type,
DBUS_TYPE_STRING, &domain,
DBUS_TYPE_STRING, &host,
DBUS_TYPE_UINT16, &port,
DBUS_TYPE_INVALID) ||
!type || !name ||
avahi_dbus_read_strlst(m, 8, &strlst) < 0) {
avahi_log_warn("Error parsing EntryGroup::AddService message");
goto fail;
}
if (!(flags & AVAHI_PUBLISH_UPDATE) && i->n_entries >= server->n_entries_per_entry_group_max) {
avahi_string_list_free(strlst);
return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_ENTRIES, NULL);
}
if (domain && !*domain)
domain = NULL;
if (host && !*host)
host = NULL;
if (avahi_server_add_service_strlst(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, (AvahiPublishFlags) flags, name, type, domain, host, port, strlst) < 0) {
avahi_string_list_free(strlst);
return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
}
if (!(flags & AVAHI_PUBLISH_UPDATE))
i->n_entries ++;
avahi_string_list_free(strlst);
return avahi_dbus_respond_ok(c, m);
} else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "AddServiceSubtype")) {
int32_t interface, protocol;
uint32_t flags;
char *type, *name, *domain, *subtype;
if (!dbus_message_get_args(
m, &error,
DBUS_TYPE_INT32, &interface,
DBUS_TYPE_INT32, &protocol,
DBUS_TYPE_UINT32, &flags,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_STRING, &type,
DBUS_TYPE_STRING, &domain,
DBUS_TYPE_STRING, &subtype,
DBUS_TYPE_INVALID) || !type || !name || !subtype) {
avahi_log_warn("Error parsing EntryGroup::AddServiceSubtype message");
goto fail;
}
if (!(flags & AVAHI_PUBLISH_UPDATE) && i->n_entries >= server->n_entries_per_entry_group_max)
return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_ENTRIES, NULL);
if (domain && !*domain)
domain = NULL;
if (avahi_server_add_service_subtype(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, (AvahiPublishFlags) flags, name, type, domain, subtype) < 0)
return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
if (!(flags & AVAHI_PUBLISH_UPDATE))
i->n_entries ++;
return avahi_dbus_respond_ok(c, m);
} else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "UpdateServiceTxt")) {
int32_t interface, protocol;
uint32_t flags;
char *type, *name, *domain;
AvahiStringList *strlst;
if (!dbus_message_get_args(
m, &error,
DBUS_TYPE_INT32, &interface,
DBUS_TYPE_INT32, &protocol,
DBUS_TYPE_UINT32, &flags,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_STRING, &type,
DBUS_TYPE_STRING, &domain,
DBUS_TYPE_INVALID) ||
!type || !name ||
avahi_dbus_read_strlst(m, 6, &strlst)) {
avahi_log_warn("Error parsing EntryGroup::UpdateServiceTxt message");
goto fail;
}
if (domain && !*domain)
domain = NULL;
if (avahi_server_update_service_txt_strlst(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, (AvahiPublishFlags) flags, name, type, domain, strlst) < 0) {
avahi_string_list_free(strlst);
return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
}
avahi_string_list_free(strlst);
return avahi_dbus_respond_ok(c, m);
} else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "AddAddress")) {
int32_t interface, protocol;
uint32_t flags;
char *name, *address;
AvahiAddress a;
if (!dbus_message_get_args(
m, &error,
DBUS_TYPE_INT32, &interface,
DBUS_TYPE_INT32, &protocol,
DBUS_TYPE_UINT32, &flags,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_STRING, &address,
DBUS_TYPE_INVALID) || !name || !address) {
avahi_log_warn("Error parsing EntryGroup::AddAddress message");
goto fail;
}
if (!(flags & AVAHI_PUBLISH_UPDATE) && i->n_entries >= server->n_entries_per_entry_group_max)
return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_ENTRIES, NULL);
if (!(avahi_address_parse(address, AVAHI_PROTO_UNSPEC, &a)))
return avahi_dbus_respond_error(c, m, AVAHI_ERR_INVALID_ADDRESS, NULL);
if (avahi_server_add_address(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, (AvahiPublishFlags) flags, name, &a) < 0)
return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
if (!(flags & AVAHI_PUBLISH_UPDATE))
i->n_entries ++;
return avahi_dbus_respond_ok(c, m);
} else if (dbus_message_is_method_call(m, AVAHI_DBUS_INTERFACE_ENTRY_GROUP, "AddRecord")) {
int32_t interface, protocol;
uint32_t flags, ttl, size;
uint16_t clazz, type;
char *name;
void *rdata;
AvahiRecord *r;
if (!dbus_message_get_args(
m, &error,
DBUS_TYPE_INT32, &interface,
DBUS_TYPE_INT32, &protocol,
DBUS_TYPE_UINT32, &flags,
DBUS_TYPE_STRING, &name,
DBUS_TYPE_UINT16, &clazz,
DBUS_TYPE_UINT16, &type,
DBUS_TYPE_UINT32, &ttl,
DBUS_TYPE_INVALID) || !name ||
avahi_dbus_read_rdata (m, 7, &rdata, &size)) {
avahi_log_warn("Error parsing EntryGroup::AddRecord message");
goto fail;
}
if (!(flags & AVAHI_PUBLISH_UPDATE) && i->n_entries >= server->n_entries_per_entry_group_max)
return avahi_dbus_respond_error(c, m, AVAHI_ERR_TOO_MANY_ENTRIES, NULL);
if (!avahi_is_valid_domain_name (name))
return avahi_dbus_respond_error(c, m, AVAHI_ERR_INVALID_DOMAIN_NAME, NULL);
if (!(r = avahi_record_new_full (name, clazz, type, ttl)))
return avahi_dbus_respond_error(c, m, AVAHI_ERR_NO_MEMORY, NULL);
if (avahi_rdata_parse (r, rdata, size) < 0) {
avahi_record_unref (r);
return avahi_dbus_respond_error(c, m, AVAHI_ERR_INVALID_RDATA, NULL);
}
if (avahi_server_add(avahi_server, i->entry_group, (AvahiIfIndex) interface, (AvahiProtocol) protocol, (AvahiPublishFlags) flags, r) < 0) {
avahi_record_unref (r);
return avahi_dbus_respond_error(c, m, avahi_server_errno(avahi_server), NULL);
}
if (!(flags & AVAHI_PUBLISH_UPDATE))
i->n_entries ++;
avahi_record_unref (r);
return avahi_dbus_respond_ok(c, m);
}
avahi_log_warn("Missed message %s::%s()", dbus_message_get_interface(m), dbus_message_get_member(m));
fail:
if (dbus_error_is_set(&error))
dbus_error_free(&error);
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
static int server_add_service_strlst_nocopy(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
const char *name,
const char *type,
const char *domain,
const char *host,
uint16_t port,
AvahiStringList *strlst) {
char ptr_name[AVAHI_DOMAIN_NAME_MAX], svc_name[AVAHI_DOMAIN_NAME_MAX], enum_ptr[AVAHI_DOMAIN_NAME_MAX], *h = NULL;
AvahiRecord *r = NULL;
int ret = AVAHI_OK;
AvahiEntry *srv_entry = NULL, *txt_entry = NULL, *ptr_entry = NULL, *enum_entry = NULL;
assert(s);
assert(type);
assert(name);
AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_IF_VALID(interface), AVAHI_ERR_INVALID_INTERFACE);
AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_PROTO_VALID(protocol), AVAHI_ERR_INVALID_PROTOCOL);
AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, AVAHI_FLAGS_VALID(flags,
AVAHI_PUBLISH_NO_COOKIE|
AVAHI_PUBLISH_UPDATE|
AVAHI_PUBLISH_USE_WIDE_AREA|
AVAHI_PUBLISH_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);
AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, avahi_is_valid_service_name(name), AVAHI_ERR_INVALID_SERVICE_NAME);
AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, avahi_is_valid_service_type_strict(type), AVAHI_ERR_INVALID_SERVICE_TYPE);
AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, !domain || avahi_is_valid_domain_name(domain), AVAHI_ERR_INVALID_DOMAIN_NAME);
AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, !host || avahi_is_valid_fqdn(host), AVAHI_ERR_INVALID_HOST_NAME);
if (!domain)
domain = s->domain_name;
if (!host)
host = s->host_name_fqdn;
transport_flags_from_domain(s, &flags, domain);
AVAHI_CHECK_VALIDITY_SET_RET_GOTO_FAIL(s, flags & AVAHI_PUBLISH_USE_MULTICAST, AVAHI_ERR_NOT_SUPPORTED);
if (!(h = avahi_normalize_name_strdup(host))) {
ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
goto fail;
}
if ((ret = avahi_service_name_join(svc_name, sizeof(svc_name), name, type, domain)) < 0 ||
(ret = avahi_service_name_join(ptr_name, sizeof(ptr_name), NULL, type, domain)) < 0 ||
(ret = avahi_service_name_join(enum_ptr, sizeof(enum_ptr), NULL, "_services._dns-sd._udp", domain)) < 0) {
avahi_server_set_errno(s, ret);
goto fail;
}
/* Add service enumeration PTR record */
if (!(ptr_entry = server_add_ptr_internal(s, g, interface, protocol, 0, AVAHI_DEFAULT_TTL, ptr_name, svc_name))) {
ret = avahi_server_errno(s);
goto fail;
}
/* Add SRV record */
if (!(r = avahi_record_new_full(svc_name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_SRV, AVAHI_DEFAULT_TTL_HOST_NAME))) {
ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
goto fail;
}
r->data.srv.priority = 0;
r->data.srv.weight = 0;
r->data.srv.port = port;
r->data.srv.name = h;
h = NULL;
srv_entry = server_add_internal(s, g, interface, protocol, AVAHI_PUBLISH_UNIQUE, r);
avahi_record_unref(r);
if (!srv_entry) {
ret = avahi_server_errno(s);
goto fail;
}
/* Add TXT record */
if (!(flags & AVAHI_PUBLISH_NO_COOKIE))
strlst = add_magic_cookie(s, strlst);
txt_entry = server_add_txt_strlst_nocopy(s, g, interface, protocol, AVAHI_PUBLISH_UNIQUE, AVAHI_DEFAULT_TTL, svc_name, strlst);
strlst = NULL;
if (!txt_entry) {
ret = avahi_server_errno(s);
goto fail;
}
/* Add service type enumeration record */
if (!(enum_entry = server_add_ptr_internal(s, g, interface, protocol, 0, AVAHI_DEFAULT_TTL, enum_ptr, ptr_name))) {
ret = avahi_server_errno(s);
goto fail;
}
fail:
if (ret != AVAHI_OK && !(flags & AVAHI_PUBLISH_UPDATE)) {
if (srv_entry)
avahi_entry_free(s, srv_entry);
if (txt_entry)
avahi_entry_free(s, txt_entry);
if (ptr_entry)
avahi_entry_free(s, ptr_entry);
if (enum_entry)
avahi_entry_free(s, enum_entry);
}
avahi_string_list_free(strlst);
avahi_free(h);
return ret;
}
int avahi_server_add_address(
AvahiServer *s,
AvahiSEntryGroup *g,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiPublishFlags flags,
const char *name,
AvahiAddress *a) {
char n[AVAHI_DOMAIN_NAME_MAX];
int ret = AVAHI_OK;
AvahiEntry *entry = NULL, *reverse = NULL;
AvahiRecord *r;
assert(s);
assert(a);
AVAHI_CHECK_VALIDITY(s, AVAHI_IF_VALID(interface), AVAHI_ERR_INVALID_INTERFACE);
AVAHI_CHECK_VALIDITY(s, AVAHI_PROTO_VALID(protocol) && AVAHI_PROTO_VALID(a->proto), AVAHI_ERR_INVALID_PROTOCOL);
AVAHI_CHECK_VALIDITY(s, AVAHI_FLAGS_VALID(flags,
AVAHI_PUBLISH_NO_REVERSE|
AVAHI_PUBLISH_NO_ANNOUNCE|
AVAHI_PUBLISH_NO_PROBE|
AVAHI_PUBLISH_UPDATE|
AVAHI_PUBLISH_USE_WIDE_AREA|
AVAHI_PUBLISH_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);
AVAHI_CHECK_VALIDITY(s, !name || avahi_is_valid_fqdn(name), AVAHI_ERR_INVALID_HOST_NAME);
/* Prepare the host naem */
if (!name)
name = s->host_name_fqdn;
else {
AVAHI_ASSERT_TRUE(avahi_normalize_name(name, n, sizeof(n)));
name = n;
}
transport_flags_from_domain(s, &flags, name);
AVAHI_CHECK_VALIDITY(s, flags & AVAHI_PUBLISH_USE_MULTICAST, AVAHI_ERR_NOT_SUPPORTED);
/* Create the A/AAAA record */
if (a->proto == AVAHI_PROTO_INET) {
if (!(r = avahi_record_new_full(name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_A, AVAHI_DEFAULT_TTL_HOST_NAME))) {
ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
goto finish;
}
r->data.a.address = a->data.ipv4;
} else {
assert(a->proto == AVAHI_PROTO_INET6);
if (!(r = avahi_record_new_full(name, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_AAAA, AVAHI_DEFAULT_TTL_HOST_NAME))) {
ret = avahi_server_set_errno(s, AVAHI_ERR_NO_MEMORY);
goto finish;
}
r->data.aaaa.address = a->data.ipv6;
}
entry = server_add_internal(s, g, interface, protocol, (flags & ~ AVAHI_PUBLISH_NO_REVERSE) | AVAHI_PUBLISH_UNIQUE | AVAHI_PUBLISH_ALLOW_MULTIPLE, r);
avahi_record_unref(r);
if (!entry) {
ret = avahi_server_errno(s);
goto finish;
}
/* Create the reverse lookup entry */
if (!(flags & AVAHI_PUBLISH_NO_REVERSE)) {
char reverse_n[AVAHI_DOMAIN_NAME_MAX];
avahi_reverse_lookup_name(a, reverse_n, sizeof(reverse_n));
if (!(reverse = server_add_ptr_internal(s, g, interface, protocol, flags | AVAHI_PUBLISH_UNIQUE, AVAHI_DEFAULT_TTL_HOST_NAME, reverse_n, name))) {
ret = avahi_server_errno(s);
goto finish;
}
}
finish:
if (ret != AVAHI_OK && !(flags & AVAHI_PUBLISH_UPDATE)) {
if (entry)
avahi_entry_free(s, entry);
if (reverse)
avahi_entry_free(s, reverse);
}
return ret;
}
int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char *argv[]) {
char t[AVAHI_DOMAIN_NAME_MAX], *m;
const char *a, *b, *c, *d;
AvahiDnsPacket *p;
AvahiRecord *r, *r2;
uint8_t rdata[AVAHI_DNS_RDATA_MAX];
size_t l;
p = avahi_dns_packet_new(0);
assert(avahi_dns_packet_append_name(p, a = "Ahello.hello.hello.de."));
assert(avahi_dns_packet_append_name(p, b = "Bthis is a test.hello.de."));
assert(avahi_dns_packet_append_name(p, c = "Cthis\\.is\\.a\\.test\\.with\\.dots.hello.de."));
assert(avahi_dns_packet_append_name(p, d = "Dthis\\\\is another test.hello.de."));
avahi_hexdump(AVAHI_DNS_PACKET_DATA(p), p->size);
assert(avahi_dns_packet_consume_name(p, t, sizeof(t)) == 0);
avahi_log_debug(">%s<", t);
assert(avahi_domain_equal(a, t));
assert(avahi_dns_packet_consume_name(p, t, sizeof(t)) == 0);
avahi_log_debug(">%s<", t);
assert(avahi_domain_equal(b, t));
assert(avahi_dns_packet_consume_name(p, t, sizeof(t)) == 0);
avahi_log_debug(">%s<", t);
assert(avahi_domain_equal(c, t));
assert(avahi_dns_packet_consume_name(p, t, sizeof(t)) == 0);
avahi_log_debug(">%s<", t);
assert(avahi_domain_equal(d, t));
avahi_dns_packet_free(p);
/* RDATA PARSING AND SERIALIZATION */
/* Create an AvahiRecord with some usful data */
r = avahi_record_new_full("foobar.local", AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_HINFO, AVAHI_DEFAULT_TTL);
assert(r);
r->data.hinfo.cpu = avahi_strdup("FOO");
r->data.hinfo.os = avahi_strdup("BAR");
/* Serialize it into a blob */
assert((l = avahi_rdata_serialize(r, rdata, sizeof(rdata))) != (size_t) -1);
/* Print it */
avahi_hexdump(rdata, l);
/* Create a new record and fill in the data from the blob */
r2 = avahi_record_new(r->key, AVAHI_DEFAULT_TTL);
assert(r2);
assert(avahi_rdata_parse(r2, rdata, l) >= 0);
/* Compare both versions */
assert(avahi_record_equal_no_ttl(r, r2));
/* Free the records */
avahi_record_unref(r);
avahi_record_unref(r2);
r = avahi_record_new_full("foobar", 77, 77, AVAHI_DEFAULT_TTL);
assert(r);
assert(r->data.generic.data = avahi_memdup("HALLO", r->data.generic.size = 5));
m = avahi_record_to_string(r);
assert(m);
avahi_log_debug(">%s<", m);
avahi_free(m);
avahi_record_unref(r);
return 0;
}
