X-Git-Url: https://git.archive.openwrt.org/?p=project%2Fubus.git;a=blobdiff_plain;f=libubus.c;h=93f9bac3483b441576eaeb9f68d6319f364c279c;hp=5fdde30f6baca72d8d373f86bcb2e3797730b009;hb=1a871e1e89055f8683793f1ca0d629ca2fa4d3be;hpb=dbd4c2f121be08e514828f2533687b145a6e16dd

diff --git a/libubus.c b/libubus.c
index 5fdde30..93f9bac 100644
--- a/libubus.c
+++ b/libubus.c
@@ -24,6 +24,7 @@ const char *__ubus_strerror[__UBUS_STATUS_LAST] = {
 	[UBUS_STATUS_OK] = "Success",
 	[UBUS_STATUS_INVALID_COMMAND] = "Invalid command",
 	[UBUS_STATUS_INVALID_ARGUMENT] = "Invalid argument",
+	[UBUS_STATUS_METHOD_NOT_FOUND] = "Method not found",
 	[UBUS_STATUS_NOT_FOUND] = "Not found",
 	[UBUS_STATUS_NO_DATA] = "No response",
 };
@@ -43,6 +44,16 @@ struct ubus_pending_data {
 	struct blob_attr data[];
 };
 
+static int ubus_cmp_id(const void *k1, const void *k2, void *ptr)
+{
+	const uint32_t *id1 = k1, *id2 = k2;
+
+	if (*id1 < *id2)
+		return -1;
+	else
+		return *id1 > *id2;
+}
+
 struct blob_attr **ubus_parse_msg(struct blob_attr *msg)
 {
 	blob_parse(msg, attrbuf, ubus_policy, UBUS_ATTR_MAX);
@@ -66,23 +77,19 @@ out:
 	return err;
 }
 
-int ubus_start_request(struct ubus_context *ctx, struct ubus_request *req,
-		       struct blob_attr *msg, int cmd, uint32_t peer)
+static int ubus_send_msg(struct ubus_context *ctx, uint32_t seq,
+			 struct blob_attr *msg, int cmd, uint32_t peer)
 {
 	struct ubus_msghdr hdr;
 	struct iovec iov[2] = {
 		STATIC_IOV(hdr)
 	};
 
-	memset(req, 0, sizeof(*req));
 	hdr.version = 0;
 	hdr.type = cmd;
-	hdr.seq = ++ctx->request_seq;
+	hdr.seq = seq;
 	hdr.peer = peer;
 
-	req->peer = hdr.peer;
-	req->seq = hdr.seq;
-
 	if (!msg) {
 		blob_buf_init(&b, 0);
 		msg = b.head;
@@ -90,12 +97,23 @@ int ubus_start_request(struct ubus_context *ctx, struct ubus_request *req,
 
 	iov[1].iov_base = (char *) msg;
 	iov[1].iov_len = blob_raw_len(msg);
-	INIT_LIST_HEAD(&req->list);
-	INIT_LIST_HEAD(&req->pending);
 
 	return writev(ctx->sock.fd, iov, 2);
 }
 
+int ubus_start_request(struct ubus_context *ctx, struct ubus_request *req,
+		       struct blob_attr *msg, int cmd, uint32_t peer)
+{
+	memset(req, 0, sizeof(*req));
+
+	INIT_LIST_HEAD(&req->list);
+	INIT_LIST_HEAD(&req->pending);
+	req->ctx = ctx;
+	req->peer = peer;
+	req->seq = ++ctx->request_seq;
+	return ubus_send_msg(ctx, req->seq, msg, cmd, peer);
+}
+
 static bool recv_retry(int fd, struct iovec *iov, bool wait)
 {
 	int bytes;
@@ -172,7 +190,8 @@ static void ubus_process_req_data(struct ubus_request *req)
 		data = list_first_entry(&req->pending,
 			struct ubus_pending_data, list);
 		list_del(&data->list);
-		req->data_cb(req, data->type, data->data);
+		if (!req->cancelled)
+			req->data_cb(req, data->type, data->data);
 		free(data);
 	}
 }
@@ -232,26 +251,89 @@ static void ubus_req_data(struct ubus_request *req, struct ubus_msghdr *hdr)
 	list_add(&data->list, &req->pending);
 }
 
-static void ubus_process_msg(struct ubus_context *ctx, struct ubus_msghdr *hdr)
+static struct ubus_request *ubus_find_request(struct ubus_context *ctx, uint32_t seq, uint32_t peer)
 {
 	struct ubus_request *req;
 
 	list_for_each_entry(req, &ctx->requests, list) {
-		if (hdr->seq != req->seq || hdr->peer != req->peer)
+		if (seq != req->seq || peer != req->peer)
 			continue;
 
-		switch(hdr->type) {
-		case UBUS_MSG_STATUS:
-			ubus_process_req_status(req, hdr);
-			return;
-		case UBUS_MSG_DATA:
-			if (req->data_cb)
-				ubus_req_data(req, hdr);
-			break;
-		default:
-			DPRINTF("unknown message type: %d\n", hdr->type);
+		return req;
+	}
+	return NULL;
+}
+
+static void ubus_process_invoke(struct ubus_context *ctx, struct ubus_msghdr *hdr)
+{
+	struct ubus_request_data req;
+	struct ubus_object *obj;
+	uint32_t objid = 0;
+	int method;
+	int ret = 0;
+
+	ubus_parse_msg(hdr->data);
+
+	if (!attrbuf[UBUS_ATTR_METHOD] || !attrbuf[UBUS_ATTR_OBJID]) {
+		ret = UBUS_STATUS_INVALID_ARGUMENT;
+		goto send;
+	}
+
+	objid = blob_get_int32(attrbuf[UBUS_ATTR_OBJID]);
+	obj = avl_find_element(&ctx->objects, &objid, obj, avl);
+	if (!obj) {
+		ret = UBUS_STATUS_NOT_FOUND;
+		goto send;
+	}
+
+	for (method = 0; method < obj->n_methods; method++)
+		if (!strcmp(obj->methods[method].name,
+		            blob_data(attrbuf[UBUS_ATTR_METHOD])))
+			goto found;
+
+	/* not found */
+	ret = UBUS_STATUS_METHOD_NOT_FOUND;
+	goto send;
+
+found:
+	req.object = objid;
+	req.peer = hdr->peer;
+	req.seq = hdr->seq;
+	ret = obj->methods[method].handler(obj, &req, obj->methods[method].name,
+					   attrbuf[UBUS_ATTR_DATA]);
+
+send:
+	blob_buf_init(&b, 0);
+	blob_put_int32(&b, UBUS_ATTR_STATUS, ret);
+	blob_put_int32(&b, UBUS_ATTR_OBJID, objid);
+	ubus_send_msg(ctx, hdr->seq, b.head, UBUS_MSG_STATUS, hdr->peer);
+}
+
+static void ubus_process_msg(struct ubus_context *ctx, struct ubus_msghdr *hdr)
+{
+	struct ubus_request *req;
+
+	switch(hdr->type) {
+	case UBUS_MSG_STATUS:
+		req = ubus_find_request(ctx, hdr->seq, hdr->peer);
+		if (!req)
 			break;
-		}
+
+		ubus_process_req_status(req, hdr);
+		break;
+
+	case UBUS_MSG_DATA:
+		req = ubus_find_request(ctx, hdr->seq, hdr->peer);
+		if (req && req->data_cb)
+			ubus_req_data(req, hdr);
+		break;
+
+	case UBUS_MSG_INVOKE:
+		ubus_process_invoke(ctx, hdr);
+		break;
+	default:
+		DPRINTF("unknown message type: %d\n", hdr->type);
+		break;
 	}
 }
 
@@ -260,6 +342,8 @@ void ubus_abort_request(struct ubus_context *ctx, struct ubus_request *req)
 	if (!list_empty(&req->list))
 		return;
 
+	req->cancelled = true;
+	ubus_process_req_data(req);
 	list_del(&req->list);
 }
 
@@ -291,6 +375,9 @@ int ubus_complete_request(struct ubus_context *ctx, struct ubus_request *req)
 		if (req->status_msg)
 			return req->status_code;
 
+		if (req->cancelled)
+			return UBUS_STATUS_NO_DATA;
+
 		if (!get_next_msg(ctx, true))
 			return UBUS_STATUS_NO_DATA;
 
@@ -305,8 +392,7 @@ int ubus_complete_request(struct ubus_context *ctx, struct ubus_request *req)
 				ubus_req_data(req, hdr);
 			continue;
 		default:
-			DPRINTF("unknown message type: %d\n", hdr->type);
-			continue;
+			goto skip;
 		}
 
 skip:
@@ -349,6 +435,9 @@ static void ubus_publish_cb(struct ubus_request *req, int type, struct blob_attr
 
 	if (attrbuf[UBUS_ATTR_OBJTYPE])
 		obj->type->id = blob_get_int32(attrbuf[UBUS_ATTR_OBJTYPE]);
+
+	obj->avl.key = &obj->id;
+	avl_insert(&req->ctx->objects, &obj->avl);
 }
 
 static bool ubus_push_table_data(const struct ubus_signature **sig, int *rem, bool array)
@@ -419,8 +508,6 @@ int ubus_publish(struct ubus_context *ctx, struct ubus_object *obj)
 
 	blob_buf_init(&b, 0);
 	blob_put_string(&b, UBUS_ATTR_OBJPATH, obj->name);
-	if (obj->parent)
-		blob_put_int32(&b, UBUS_ATTR_OBJID, obj->parent->id);
 
 	if (obj->type->id)
 		blob_put_int32(&b, UBUS_ATTR_OBJTYPE, obj->type->id);
@@ -491,6 +578,9 @@ struct ubus_context *ubus_connect(const char *path)
 	ctx->local_id = hdr.hdr.peer;
 	free(buf);
 
+	INIT_LIST_HEAD(&ctx->requests);
+	avl_init(&ctx->objects, ubus_cmp_id, false, NULL);
+
 	if (!ctx->local_id) {
 		DPRINTF("Failed to get local peer id\n");
 		goto error_close;