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feat(ble_mesh): Miscellaneous updates for mesh kconfig, relay related

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This commit is contained in:
luoxu 2023-12-01 14:45:59 +08:00 committed by Liu Linyan
parent f244dc693d
commit 63a7db457a
4 changed files with 38 additions and 4 deletions
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27
components/bt/esp_ble_mesh/Kconfig.in
View File

@ -623,6 +623,21 @@ if BLE_MESH
number of each node should also be taken into consideration. For example, if
Provisioner can provision up to 20 nodes and each node contains two elements,
then the replay protection list size of Provisioner should be at least 40.
config BLE_MESH_NOT_RELAY_REPLAY_MSG
bool "Not relay replayed messages in a mesh network"
depends on BLE_MESH_EXPERIMENTAL
default n
help
There may be many expired messages in a complex mesh network that would be
considered replayed messages.
Enable this option will refuse to relay such messages, which could help to
reduce invalid packets in the mesh network.
However, it should be noted that enabling this option may result in packet
loss in certain environments.
Therefore, users need to decide whether to enable this option according to
the actual usage situation.
config BLE_MESH_MSG_CACHE_SIZE
int "Network message cache size"
@ -1451,7 +1466,7 @@ if BLE_MESH
config BLE_MESH_MBT_CLI
bool "BLOB Transfer Client model"
default y
default n
help
Enable support for BLOB Transfer Client model.
@ -1469,7 +1484,7 @@ if BLE_MESH
config BLE_MESH_MBT_SRV
bool "BLOB Transfer Server model"
default y
default n
help
Enable support for BLOB Transfer Server model.
@ -1607,4 +1622,12 @@ if BLE_MESH
endmenu
config BLE_MESH_EXPERIMENTAL
bool "Make BLE Mesh experimental features visible"
default n
help
Make BLE Mesh Experimental features visible.
Experimental features list:
- CONFIG_BLE_MESH_NOT_RELAY_REPLAY_MSG
endif # BLE_MESH

8
components/bt/esp_ble_mesh/core/net.c
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@ -1542,7 +1542,7 @@ static void bt_mesh_net_relay(struct net_buf_simple *sbuf,
#endif
if (!buf) {
BT_ERR("Out of relay buffers");
BT_INFO("Out of relay buffers");
return;
}
@ -1855,7 +1855,11 @@ void bt_mesh_net_recv(struct net_buf_simple *data, int8_t rssi,
* was neither a local element nor an LPN we're Friends for.
*/
if (!BLE_MESH_ADDR_IS_UNICAST(rx.ctx.recv_dst) ||
(!rx.local_match && !rx.friend_match)) {
(!rx.local_match && !rx.friend_match
#if CONFIG_BLE_MESH_NOT_RELAY_REPLAY_MSG
&& !rx.replay_msg
#endif
)) {
net_buf_simple_restore(&buf, &state);
bt_mesh_net_relay(&buf, &rx);
}

3
components/bt/esp_ble_mesh/core/net.h
View File

@ -391,6 +391,9 @@ struct bt_mesh_net_rx {
net_if:2, /* Network interface */
local_match:1, /* Matched a local element */
friend_match:1, /* Matched an LPN we're friends for */
#if CONFIG_BLE_MESH_NOT_RELAY_REPLAY_MSG
replay_msg:1, /* Replayed messages */
#endif
sbr_rpl:1; /* Bridge RPL attacker */
uint16_t msg_cache_idx; /* Index of entry in message cache */
};

4
components/bt/esp_ble_mesh/core/rpl.c
View File

@ -64,6 +64,10 @@ static bool rpl_check_and_store(struct bt_mesh_net_rx *rx, struct bt_mesh_rpl **
return false;
}
#if CONFIG_BLE_MESH_NOT_RELAY_REPLAY_MSG
rx->replay_msg = 1;
#endif
return true;
}
}