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From:   Inga Stotland <inga.stotland@intel.com>
To:     linux-bluetooth@vger.kernel.org
Cc:     brian.gix@intel.com, Inga Stotland <inga.stotland@intel.com>
Subject: [PATCH BlueZ v2 2/4] mesh: Handle "options" dictionary in Send/Publish methods
Date:   Mon, 24 Aug 2020 17:54:33 -0700
Message-Id: <20200825005435.26566-3-inga.stotland@intel.com>
In-Reply-To: <20200825005435.26566-1-inga.stotland@intel.com>
References: <20200825005435.26566-1-inga.stotland@intel.com>
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Sender: linux-bluetooth-owner@vger.kernel.org
Precedence: bulk

This adds processing of "options" dictionary argument in Send,
DevKeySend & Publish methods on mesh.Node interface.

This new argument is a dictionary that currently has only one
new key word defined for Send() and DevKeySend():
    "ForceSegmented" - to force small payloads to be sent as
                       one-segment messages

In case of Publish(), and additional keyword is defined
     "Vendor" -  16-bit Company ID as defined by the Bluetooth SIG

Other key words may be defined in future to accommodate evolving
requirements of Mesh Profile specification.

Also, the addition of "options" dictionary to Publish allows to
eliminate VendorPublish() method (taken care by "Vendor" keyword).
---
 mesh/cfgmod-server.c |   2 +-
 mesh/model.c         |   6 +-
 mesh/model.h         |   9 +--
 mesh/node.c          | 140 +++++++++++++++++++++----------------------
 4 files changed, 75 insertions(+), 82 deletions(-)

diff --git a/mesh/cfgmod-server.c b/mesh/cfgmod-server.c
index 239ea889d..2e5da863a 100644
--- a/mesh/cfgmod-server.c
+++ b/mesh/cfgmod-server.c
@@ -1088,7 +1088,7 @@ static bool cfg_srv_pkt(uint16_t src, uint16_t dst, uint16_t app_idx,
 
 	if (n)
 		mesh_model_send(node, dst, src, APP_IDX_DEV_LOCAL, net_idx,
-						DEFAULT_TTL, false, msg, n);
+						DEFAULT_TTL, false, n, msg);
 
 	return true;
 }
diff --git a/mesh/model.c b/mesh/model.c
index bb5d30083..7bbc9cca7 100644
--- a/mesh/model.c
+++ b/mesh/model.c
@@ -999,7 +999,7 @@ done:
 }
 
 int mesh_model_publish(struct mesh_node *node, uint32_t id, uint16_t src,
-					const void *msg, uint16_t msg_len)
+			bool segmented, uint16_t msg_len, const void *msg)
 {
 	struct mesh_net *net = node_get_net(node);
 	struct mesh_model *mod;
@@ -1041,7 +1041,7 @@ int mesh_model_publish(struct mesh_node *node, uint32_t id, uint16_t src,
 	result = msg_send(node, mod->pub->credential != 0, src, mod->pub->addr,
 				mod->pub->idx, net_idx, label, mod->pub->ttl,
 				mod->pub->rtx.cnt, mod->pub->rtx.interval,
-				false, msg, msg_len);
+				segmented, msg, msg_len);
 
 	return result ? MESH_ERROR_NONE : MESH_ERROR_FAILED;
 }
@@ -1049,7 +1049,7 @@ int mesh_model_publish(struct mesh_node *node, uint32_t id, uint16_t src,
 bool mesh_model_send(struct mesh_node *node, uint16_t src, uint16_t dst,
 					uint16_t app_idx, uint16_t net_idx,
 					uint8_t ttl, bool segmented,
-					const void *msg, uint16_t msg_len)
+					uint16_t msg_len, const void *msg)
 {
 	struct mesh_net *net = node_get_net(node);
 	uint8_t cnt;
diff --git a/mesh/model.h b/mesh/model.h
index a1afedd19..fe0648d04 100644
--- a/mesh/model.h
+++ b/mesh/model.h
@@ -112,19 +112,16 @@ int mesh_model_sub_get(struct mesh_node *node, uint16_t ele_addr, uint32_t id,
 			uint8_t *buf, uint16_t buf_size, uint16_t *size);
 uint16_t mesh_model_cfg_blk(uint8_t *pkt);
 bool mesh_model_send(struct mesh_node *node, uint16_t src, uint16_t dst,
-					uint16_t app_idx, uint16_t net_idx,
-					uint8_t ttl, bool segmented,
-					const void *msg, uint16_t msg_len);
+			uint16_t app_idx, uint16_t net_idx, uint8_t ttl,
+			bool segmented, uint16_t len, const void *data);
 int mesh_model_publish(struct mesh_node *node, uint32_t id, uint16_t src,
-					const void *msg, uint16_t msg_len);
+			bool segmented, uint16_t len, const void *data);
 bool mesh_model_rx(struct mesh_node *node, bool szmict, uint32_t seq0,
 			uint32_t seq, uint32_t iv_index, uint16_t net_idx,
 			uint16_t src, uint16_t dst, uint8_t key_aid,
 			const uint8_t *data, uint16_t size);
-void mesh_model_app_key_generate_new(struct mesh_node *node, uint16_t net_idx);
 void mesh_model_app_key_delete(struct mesh_node *node, uint16_t ele_idx,
 				struct l_queue *models, uint16_t app_idx);
-struct l_queue *mesh_model_get_appkeys(struct mesh_node *node);
 uint16_t mesh_model_opcode_set(uint32_t opcode, uint8_t *buf);
 bool mesh_model_opcode_get(const uint8_t *buf, uint16_t size, uint32_t *opcode,
 								uint16_t *n);
diff --git a/mesh/node.c b/mesh/node.c
index a6e9cee65..c564bdb91 100644
--- a/mesh/node.c
+++ b/mesh/node.c
@@ -134,6 +134,11 @@ struct managed_obj_request {
 	};
 };
 
+struct send_options {
+	bool segmented;
+	uint16_t vendor_id;
+};
+
 static struct l_queue *nodes;
 
 static bool match_device_uuid(const void *a, const void *b)
@@ -1745,13 +1750,40 @@ void node_build_attach_reply(struct mesh_node *node,
 	l_dbus_message_builder_destroy(builder);
 }
 
+static bool parse_send_options(struct l_dbus_message_iter *itr,
+						struct send_options *opts)
+{
+	const char *key;
+	struct l_dbus_message_iter var;
+
+	opts->segmented = false;
+	opts->vendor_id = SIG_VENDOR;
+
+	while (l_dbus_message_iter_next_entry(itr, &key, &var)) {
+		if (!strcmp(key, "ForceSegmented")) {
+			if (!l_dbus_message_iter_get_variant(&var, "b",
+							&opts->segmented))
+				return false;
+		}
+
+		if (!strcmp(key, "Vendor")) {
+			if (!l_dbus_message_iter_get_variant(&var, "q",
+							&opts->vendor_id))
+				return false;
+		}
+	}
+
+	return true;
+}
+
 static struct l_dbus_message *send_call(struct l_dbus *dbus,
 						struct l_dbus_message *msg,
 						void *user_data)
 {
 	struct mesh_node *node = user_data;
 	const char *sender, *ele_path;
-	struct l_dbus_message_iter iter_data;
+	struct l_dbus_message_iter dict, iter_data;
+	struct send_options opts;
 	struct node_element *ele;
 	uint16_t dst, app_idx, net_idx, src;
 	uint8_t *data;
@@ -1764,8 +1796,8 @@ static struct l_dbus_message *send_call(struct l_dbus *dbus,
 	if (strcmp(sender, node->owner))
 		return dbus_error(msg, MESH_ERROR_NOT_AUTHORIZED, NULL);
 
-	if (!l_dbus_message_get_arguments(msg, "oqqay", &ele_path, &dst,
-							&app_idx, &iter_data))
+	if (!l_dbus_message_get_arguments(msg, "oqqa{sv}ay", &ele_path, &dst,
+						&app_idx, &dict, &iter_data))
 		return dbus_error(msg, MESH_ERROR_INVALID_ARGS, NULL);
 
 	ele = l_queue_find(node->elements, match_element_path, ele_path);
@@ -1773,6 +1805,9 @@ static struct l_dbus_message *send_call(struct l_dbus *dbus,
 		return dbus_error(msg, MESH_ERROR_NOT_FOUND,
 							"Element not found");
 
+	if (!parse_send_options(&dict, &opts))
+		return dbus_error(msg, MESH_ERROR_INVALID_ARGS, NULL);
+
 	src = node_get_primary(node) + ele->idx;
 
 	if (!l_dbus_message_iter_get_fixed_array(&iter_data, &data, &len) ||
@@ -1790,7 +1825,7 @@ static struct l_dbus_message *send_call(struct l_dbus *dbus,
 							"Key not found");
 
 	if (!mesh_model_send(node, src, dst, app_idx, net_idx, DEFAULT_TTL,
-							false, data, len))
+						opts.segmented, len, data))
 		return dbus_error(msg, MESH_ERROR_FAILED, NULL);
 
 	return l_dbus_message_new_method_return(msg);
@@ -1802,7 +1837,8 @@ static struct l_dbus_message *dev_key_send_call(struct l_dbus *dbus,
 {
 	struct mesh_node *node = user_data;
 	const char *sender, *ele_path;
-	struct l_dbus_message_iter iter_data;
+	struct l_dbus_message_iter iter_data, dict;
+	struct send_options opts;
 	struct node_element *ele;
 	uint16_t dst, app_idx, net_idx, src;
 	bool remote;
@@ -1816,8 +1852,8 @@ static struct l_dbus_message *dev_key_send_call(struct l_dbus *dbus,
 	if (strcmp(sender, node->owner))
 		return dbus_error(msg, MESH_ERROR_NOT_AUTHORIZED, NULL);
 
-	if (!l_dbus_message_get_arguments(msg, "oqbqay", &ele_path, &dst,
-						&remote, &net_idx, &iter_data))
+	if (!l_dbus_message_get_arguments(msg, "oqbqa{sv}ay", &ele_path, &dst,
+					&remote, &net_idx, &dict, &iter_data))
 		return dbus_error(msg, MESH_ERROR_INVALID_ARGS, NULL);
 
 	/* Loopbacks to local servers must use *remote* addressing */
@@ -1829,6 +1865,9 @@ static struct l_dbus_message *dev_key_send_call(struct l_dbus *dbus,
 		return dbus_error(msg, MESH_ERROR_NOT_FOUND,
 							"Element not found");
 
+	if (!parse_send_options(&dict, &opts))
+		return dbus_error(msg, MESH_ERROR_INVALID_ARGS, NULL);
+
 	src = node_get_primary(node) + ele->idx;
 
 	if (!l_dbus_message_iter_get_fixed_array(&iter_data, &data, &len) ||
@@ -1838,7 +1877,7 @@ static struct l_dbus_message *dev_key_send_call(struct l_dbus *dbus,
 
 	app_idx = remote ? APP_IDX_DEV_REMOTE : APP_IDX_DEV_LOCAL;
 	if (!mesh_model_send(node, src, dst, app_idx, net_idx, DEFAULT_TTL,
-							false, data, len))
+						opts.segmented, len, data))
 		return dbus_error(msg, MESH_ERROR_NOT_FOUND, NULL);
 
 	return l_dbus_message_new_method_return(msg);
@@ -1896,7 +1935,7 @@ static struct l_dbus_message *add_netkey_call(struct l_dbus *dbus,
 	l_put_le16(sub_idx, &data[2]);
 
 	if (!mesh_model_send(node, src, dst, APP_IDX_DEV_REMOTE, net_idx,
-						DEFAULT_TTL, false, data, 20))
+						DEFAULT_TTL, false, 20, data))
 		return dbus_error(msg, MESH_ERROR_NOT_FOUND, NULL);
 
 	return l_dbus_message_new_method_return(msg);
@@ -1962,7 +2001,7 @@ static struct l_dbus_message *add_appkey_call(struct l_dbus *dbus,
 	data[3] = app_idx >> 4;
 
 	if (!mesh_model_send(node, src, dst, APP_IDX_DEV_REMOTE, net_idx,
-						DEFAULT_TTL, false, data, 20))
+						DEFAULT_TTL, false, 20, data))
 		return dbus_error(msg, MESH_ERROR_NOT_FOUND, NULL);
 
 	return l_dbus_message_new_method_return(msg);
@@ -1974,8 +2013,9 @@ static struct l_dbus_message *publish_call(struct l_dbus *dbus,
 {
 	struct mesh_node *node = user_data;
 	const char *sender, *ele_path;
-	struct l_dbus_message_iter iter_data;
+	struct l_dbus_message_iter iter_data, dict;
 	uint16_t mod_id, src;
+	struct send_options opts;
 	struct node_element *ele;
 	uint8_t *data;
 	uint32_t len, id;
@@ -1988,8 +2028,8 @@ static struct l_dbus_message *publish_call(struct l_dbus *dbus,
 	if (strcmp(sender, node->owner))
 		return dbus_error(msg, MESH_ERROR_NOT_AUTHORIZED, NULL);
 
-	if (!l_dbus_message_get_arguments(msg, "oqay", &ele_path, &mod_id,
-								&iter_data))
+	if (!l_dbus_message_get_arguments(msg, "oqa{sv}ay", &ele_path, &mod_id,
+							&dict, &iter_data))
 		return dbus_error(msg, MESH_ERROR_INVALID_ARGS, NULL);
 
 	ele = l_queue_find(node->elements, match_element_path, ele_path);
@@ -1997,51 +2037,9 @@ static struct l_dbus_message *publish_call(struct l_dbus *dbus,
 		return dbus_error(msg, MESH_ERROR_NOT_FOUND,
 							"Element not found");
 
-	src = node_get_primary(node) + ele->idx;
-
-	if (!l_dbus_message_iter_get_fixed_array(&iter_data, &data, &len) ||
-					!len || len > MAX_MSG_LEN)
-		return dbus_error(msg, MESH_ERROR_INVALID_ARGS,
-							"Incorrect data");
-
-	id = SET_ID(SIG_VENDOR, mod_id);
-	result = mesh_model_publish(node, id, src, data, len);
-
-	if (result != MESH_ERROR_NONE)
-		return dbus_error(msg, result, NULL);
-
-	return l_dbus_message_new_method_return(msg);
-}
-
-static struct l_dbus_message *vendor_publish_call(struct l_dbus *dbus,
-						struct l_dbus_message *msg,
-						void *user_data)
-{
-	struct mesh_node *node = user_data;
-	const char *sender, *ele_path;
-	struct l_dbus_message_iter iter_data;
-	uint16_t src, mod_id, vendor_id;
-	struct node_element *ele;
-	uint8_t *data = NULL;
-	uint32_t len;
-	int result;
-
-	l_debug("Publish");
-
-	sender = l_dbus_message_get_sender(msg);
-
-	if (strcmp(sender, node->owner))
-		return dbus_error(msg, MESH_ERROR_NOT_AUTHORIZED, NULL);
-
-	if (!l_dbus_message_get_arguments(msg, "oqqay", &ele_path, &vendor_id,
-							&mod_id, &iter_data))
+	if (!parse_send_options(&dict, &opts))
 		return dbus_error(msg, MESH_ERROR_INVALID_ARGS, NULL);
 
-	ele = l_queue_find(node->elements, match_element_path, ele_path);
-	if (!ele)
-		return dbus_error(msg, MESH_ERROR_NOT_FOUND,
-							"Element not found");
-
 	src = node_get_primary(node) + ele->idx;
 
 	if (!l_dbus_message_iter_get_fixed_array(&iter_data, &data, &len) ||
@@ -2049,13 +2047,14 @@ static struct l_dbus_message *vendor_publish_call(struct l_dbus *dbus,
 		return dbus_error(msg, MESH_ERROR_INVALID_ARGS,
 							"Incorrect data");
 
-	result = mesh_model_publish(node, SET_ID(vendor_id, mod_id), src,
-								data, len);
+	id = SET_ID(opts.vendor_id, mod_id);
+
+	result = mesh_model_publish(node, id, src, opts.segmented, len, data);
 
 	if (result != MESH_ERROR_NONE)
 		return dbus_error(msg, result, NULL);
 
-	return  l_dbus_message_new_method_return(msg);
+	return l_dbus_message_new_method_return(msg);
 }
 
 static bool features_getter(struct l_dbus *dbus, struct l_dbus_message *msg,
@@ -2192,27 +2191,24 @@ static bool addresses_getter(struct l_dbus *dbus, struct l_dbus_message *msg,
 
 static void setup_node_interface(struct l_dbus_interface *iface)
 {
-	l_dbus_interface_method(iface, "Send", 0, send_call, "", "oqqay",
+	l_dbus_interface_method(iface, "Send", 0, send_call, "", "oqqa{sv}ay",
 						"element_path", "destination",
-						"key_index", "data");
-	l_dbus_interface_method(iface, "DevKeySend", 0, dev_key_send_call,
-						"", "oqbqay", "element_path",
+						"key_index", "options", "data");
+	l_dbus_interface_method(iface, "DevKeySend", 0, dev_key_send_call, "",
+						"oqbqa{sv}ay", "element_path",
 						"destination", "remote",
-						"net_index", "data");
+						"net_index", "options", "data");
 	l_dbus_interface_method(iface, "AddNetKey", 0, add_netkey_call, "",
 					"oqqqb", "element_path", "destination",
 					"subnet_index", "net_index", "update");
 	l_dbus_interface_method(iface, "AddAppKey", 0, add_appkey_call, "",
 					"oqqqb", "element_path", "destination",
 					"app_index", "net_index", "update");
-	l_dbus_interface_method(iface, "Publish", 0, publish_call, "", "oqay",
-					"element_path", "model_id", "data");
-	l_dbus_interface_method(iface, "VendorPublish", 0, vendor_publish_call,
-						"", "oqqay", "element_path",
-						"vendor", "model_id", "data");
-
-	l_dbus_interface_property(iface, "Features", 0, "a{sv}", features_getter,
-									NULL);
+	l_dbus_interface_method(iface, "Publish", 0, publish_call, "",
+					"oqa{sv}ay", "element_path", "model_id",
+							"options", "data");
+	l_dbus_interface_property(iface, "Features", 0, "a{sv}",
+							features_getter, NULL);
 	l_dbus_interface_property(iface, "Beacon", 0, "b", beacon_getter, NULL);
 	l_dbus_interface_property(iface, "IvUpdate", 0, "b", ivupdate_getter,
 									NULL);
-- 
2.26.2