static void create_services(AvahiServer *s) { char r[128]; int ret; assert(s); /* If this is the first time we're called, let's create a new entry group */ if (!group) if (!(group = avahi_s_entry_group_new(s, entry_group_callback, NULL))) { fprintf(stderr, "avahi_entry_group_new() failed: %s\n", avahi_strerror(avahi_server_errno(s))); goto fail; } fprintf(stderr, "Adding service '%s'\n", name); /* Create some random TXT data */ snprintf(r, sizeof(r), "random=%i", rand()); /* Add the service for IPP */ if ((ret = avahi_server_add_service(s, group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, name, "_ipp._tcp", NULL, NULL, 651, "test=blah", r, NULL)) < 0) { fprintf(stderr, "Failed to add _ipp._tcp service: %s\n", avahi_strerror(ret)); goto fail; } /* Add the same service for BSD LPR */ if ((ret = avahi_server_add_service(s, group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, name, "_printer._tcp", NULL, NULL, 515, NULL)) < 0) { fprintf(stderr, "Failed to add _printer._tcp service: %s\n", avahi_strerror(ret)); goto fail; } /* Add an additional (hypothetic) subtype */ if ((ret = avahi_server_add_service_subtype(s, group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, name, "_printer._tcp", NULL, "_magic._sub._printer._tcp") < 0)) { fprintf(stderr, "Failed to add subtype _magic._sub._printer._tcp: %s\n", avahi_strerror(ret)); goto fail; } /* Tell the server to register the service */ if ((ret = avahi_s_entry_group_commit(group)) < 0) { fprintf(stderr, "Failed to commit entry_group: %s\n", avahi_strerror(ret)); goto fail; } return; fail: avahi_simple_poll_quit(simple_poll); }
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 void add_static_service_group_to_server(StaticServiceGroup *g) { StaticService *s; assert(g); if (g->entry_group && !avahi_s_entry_group_is_empty(g->entry_group)) /* This service group is already registered in the server */ return; if (!g->chosen_name || (g->replace_wildcards && strstr(g->name, "%h"))) { avahi_free(g->chosen_name); if (g->replace_wildcards) { char label[AVAHI_LABEL_MAX]; const char *p; p = avahi_server_get_host_name(avahi_server); avahi_unescape_label(&p, label, sizeof(label)); g->chosen_name = replacestr(g->name, "%h", label); } else g->chosen_name = avahi_strdup(g->name); } if (!g->entry_group) g->entry_group = avahi_s_entry_group_new(avahi_server, entry_group_callback, g); assert(avahi_s_entry_group_is_empty(g->entry_group)); for (s = g->services; s; s = s->services_next) { AvahiStringList *i; if (avahi_server_add_service_strlst( avahi_server, g->entry_group, s->interface, s->protocol, 0, g->chosen_name, s->type, s->domain_name, s->host_name, s->port, s->txt_records) < 0) { avahi_log_error("Failed to add service '%s' of type '%s', ignoring service group (%s): %s", g->chosen_name, s->type, g->filename, avahi_strerror(avahi_server_errno(avahi_server))); remove_static_service_group_from_server(g); return; } for (i = s->subtypes; i; i = i->next) { if (avahi_server_add_service_subtype( avahi_server, g->entry_group, AVAHI_IF_UNSPEC, s->protocol, 0, g->chosen_name, s->type, s->domain_name, (char*) i->text) < 0) { avahi_log_error("Failed to add subtype '%s' for service '%s' of type '%s', ignoring subtype (%s): %s", i->text, g->chosen_name, s->type, g->filename, avahi_strerror(avahi_server_errno(avahi_server))); } } } avahi_s_entry_group_commit(g->entry_group); }