From 859d0ecd2a369861771e9fea354a9ef67aaf9e9a Mon Sep 17 00:00:00 2001 From: Steven Barth Date: Sun, 26 Oct 2014 20:00:21 +0100 Subject: [PATCH] Add query ubus call Signed-off-by: Steven Barth --- interface.c | 9 +++++++++ interface.h | 1 + ubus.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 62 insertions(+) diff --git a/interface.c b/interface.c index 70c02aa..c8d8972 100644 --- a/interface.c +++ b/interface.c @@ -627,4 +627,13 @@ void interface_shutdown(void) interface_close(iface); } +struct interface* +interface_get(const char *name, int v6, int multicast) +{ + char id_buf[32]; + snprintf(id_buf, sizeof(id_buf), "%d_%d_%s", multicast, v6, name); + struct interface *iface = vlist_find(&interfaces, id_buf, iface, node); + return iface; +} + VLIST_TREE(interfaces, avl_strcmp, iface_update_cb, false, false); diff --git a/interface.h b/interface.h index 4bd8e0c..50d7071 100644 --- a/interface.h +++ b/interface.h @@ -54,5 +54,6 @@ struct interface { int interface_add(const char *name); void interface_shutdown(void); int interface_send_packet(struct interface *iface, struct iovec *iov, int iov_len); +struct interface* interface_get(const char *name, int v6, int multicast); #endif diff --git a/ubus.c b/ubus.c index 67c3af7..ebd3157 100644 --- a/ubus.c +++ b/ubus.c @@ -147,9 +147,61 @@ mdns_set_config(struct ubus_context *ctx, struct ubus_object *obj, return 0; } +enum query_attr { + QUERY_QUESTION, + QUERY_IFACE, + QUERY_TYPE, + QUERY_MAX +}; + +static const struct blobmsg_policy query_policy[QUERY_MAX] = { + [QUERY_QUESTION]= { "question", BLOBMSG_TYPE_STRING }, + [QUERY_IFACE] = { "interface", BLOBMSG_TYPE_STRING }, + [QUERY_TYPE] = { "type", BLOBMSG_TYPE_INT32 }, +}; + +static int +mdns_query(struct ubus_context *ctx, struct ubus_object *obj, + struct ubus_request_data *req, const char *method, + struct blob_attr *msg) +{ + struct blob_attr *tb[QUERY_MAX], *c; + const char *question = "_services._dns-sd._udp.local"; + const char *ifname; + int type = TYPE_ANY; + + blobmsg_parse(query_policy, QUERY_MAX, tb, blob_data(msg), blob_len(msg)); + + if (!(c = tb[QUERY_IFACE])) + return UBUS_STATUS_INVALID_ARGUMENT; + + ifname = blobmsg_get_string(c); + + if ((c = tb[QUERY_QUESTION])) + question = blobmsg_get_string(c); + + if ((c = tb[QUERY_TYPE])) + type = blobmsg_get_u32(c); + + struct interface *iface_v4 = interface_get(ifname, 0, 1); + struct interface *iface_v6 = interface_get(ifname, 1, 1); + + if (!iface_v4 && !iface_v6) + return UBUS_STATUS_NOT_FOUND; + + if (iface_v4) + dns_send_question(iface_v4, question, type, 0); + + if (iface_v6) + dns_send_question(iface_v6, question, type, 0); + + return UBUS_STATUS_OK; +} + static const struct ubus_method mdns_methods[] = { UBUS_METHOD("set_config", mdns_set_config, config_policy), + UBUS_METHOD("query", mdns_query, query_policy), UBUS_METHOD_NOARG("scan", mdns_scan), UBUS_METHOD_NOARG("browse", mdns_browse), UBUS_METHOD_NOARG("hosts", mdns_hosts), -- 2.25.1